1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * ipr.c -- driver for IBM Power Linux RAID adapters |
4 | * |
5 | * Written By: Brian King <brking@us.ibm.com>, IBM Corporation |
6 | * |
7 | * Copyright (C) 2003, 2004 IBM Corporation |
8 | */ |
9 | |
10 | /* |
11 | * Notes: |
12 | * |
13 | * This driver is used to control the following SCSI adapters: |
14 | * |
15 | * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B |
16 | * |
17 | * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter |
18 | * PCI-X Dual Channel Ultra 320 SCSI Adapter |
19 | * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card |
20 | * Embedded SCSI adapter on p615 and p655 systems |
21 | * |
22 | * Supported Hardware Features: |
23 | * - Ultra 320 SCSI controller |
24 | * - PCI-X host interface |
25 | * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine |
26 | * - Non-Volatile Write Cache |
27 | * - Supports attachment of non-RAID disks, tape, and optical devices |
28 | * - RAID Levels 0, 5, 10 |
29 | * - Hot spare |
30 | * - Background Parity Checking |
31 | * - Background Data Scrubbing |
32 | * - Ability to increase the capacity of an existing RAID 5 disk array |
33 | * by adding disks |
34 | * |
35 | * Driver Features: |
36 | * - Tagged command queuing |
37 | * - Adapter microcode download |
38 | * - PCI hot plug |
39 | * - SCSI device hot plug |
40 | * |
41 | */ |
42 | |
43 | #include <linux/fs.h> |
44 | #include <linux/init.h> |
45 | #include <linux/types.h> |
46 | #include <linux/errno.h> |
47 | #include <linux/kernel.h> |
48 | #include <linux/slab.h> |
49 | #include <linux/vmalloc.h> |
50 | #include <linux/ioport.h> |
51 | #include <linux/delay.h> |
52 | #include <linux/pci.h> |
53 | #include <linux/wait.h> |
54 | #include <linux/spinlock.h> |
55 | #include <linux/sched.h> |
56 | #include <linux/interrupt.h> |
57 | #include <linux/blkdev.h> |
58 | #include <linux/firmware.h> |
59 | #include <linux/module.h> |
60 | #include <linux/moduleparam.h> |
61 | #include <linux/hdreg.h> |
62 | #include <linux/reboot.h> |
63 | #include <linux/stringify.h> |
64 | #include <asm/io.h> |
65 | #include <asm/irq.h> |
66 | #include <asm/processor.h> |
67 | #include <scsi/scsi.h> |
68 | #include <scsi/scsi_host.h> |
69 | #include <scsi/scsi_tcq.h> |
70 | #include <scsi/scsi_eh.h> |
71 | #include <scsi/scsi_cmnd.h> |
72 | #include "ipr.h" |
73 | |
74 | /* |
75 | * Global Data |
76 | */ |
77 | static LIST_HEAD(ipr_ioa_head); |
78 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; |
79 | static unsigned int ipr_max_speed = 1; |
80 | static unsigned int ipr_fastfail = 0; |
81 | static unsigned int ipr_transop_timeout = 0; |
82 | static unsigned int ipr_debug = 0; |
83 | static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; |
84 | static unsigned int ipr_dual_ioa_raid = 1; |
85 | static unsigned int ipr_number_of_msix = 16; |
86 | static unsigned int ipr_fast_reboot; |
87 | static DEFINE_SPINLOCK(ipr_driver_lock); |
88 | |
89 | /* This table describes the differences between DMA controller chips */ |
90 | static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { |
91 | { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ |
92 | .mailbox = 0x0042C, |
93 | .max_cmds = 100, |
94 | .cache_line_size = 0x20, |
95 | .clear_isr = 1, |
96 | .iopoll_weight = 0, |
97 | { |
98 | .set_interrupt_mask_reg = 0x0022C, |
99 | .clr_interrupt_mask_reg = 0x00230, |
100 | .clr_interrupt_mask_reg32 = 0x00230, |
101 | .sense_interrupt_mask_reg = 0x0022C, |
102 | .sense_interrupt_mask_reg32 = 0x0022C, |
103 | .clr_interrupt_reg = 0x00228, |
104 | .clr_interrupt_reg32 = 0x00228, |
105 | .sense_interrupt_reg = 0x00224, |
106 | .sense_interrupt_reg32 = 0x00224, |
107 | .ioarrin_reg = 0x00404, |
108 | .sense_uproc_interrupt_reg = 0x00214, |
109 | .sense_uproc_interrupt_reg32 = 0x00214, |
110 | .set_uproc_interrupt_reg = 0x00214, |
111 | .set_uproc_interrupt_reg32 = 0x00214, |
112 | .clr_uproc_interrupt_reg = 0x00218, |
113 | .clr_uproc_interrupt_reg32 = 0x00218 |
114 | } |
115 | }, |
116 | { /* Snipe and Scamp */ |
117 | .mailbox = 0x0052C, |
118 | .max_cmds = 100, |
119 | .cache_line_size = 0x20, |
120 | .clear_isr = 1, |
121 | .iopoll_weight = 0, |
122 | { |
123 | .set_interrupt_mask_reg = 0x00288, |
124 | .clr_interrupt_mask_reg = 0x0028C, |
125 | .clr_interrupt_mask_reg32 = 0x0028C, |
126 | .sense_interrupt_mask_reg = 0x00288, |
127 | .sense_interrupt_mask_reg32 = 0x00288, |
128 | .clr_interrupt_reg = 0x00284, |
129 | .clr_interrupt_reg32 = 0x00284, |
130 | .sense_interrupt_reg = 0x00280, |
131 | .sense_interrupt_reg32 = 0x00280, |
132 | .ioarrin_reg = 0x00504, |
133 | .sense_uproc_interrupt_reg = 0x00290, |
134 | .sense_uproc_interrupt_reg32 = 0x00290, |
135 | .set_uproc_interrupt_reg = 0x00290, |
136 | .set_uproc_interrupt_reg32 = 0x00290, |
137 | .clr_uproc_interrupt_reg = 0x00294, |
138 | .clr_uproc_interrupt_reg32 = 0x00294 |
139 | } |
140 | }, |
141 | { /* CRoC */ |
142 | .mailbox = 0x00044, |
143 | .max_cmds = 1000, |
144 | .cache_line_size = 0x20, |
145 | .clear_isr = 0, |
146 | .iopoll_weight = 64, |
147 | { |
148 | .set_interrupt_mask_reg = 0x00010, |
149 | .clr_interrupt_mask_reg = 0x00018, |
150 | .clr_interrupt_mask_reg32 = 0x0001C, |
151 | .sense_interrupt_mask_reg = 0x00010, |
152 | .sense_interrupt_mask_reg32 = 0x00014, |
153 | .clr_interrupt_reg = 0x00008, |
154 | .clr_interrupt_reg32 = 0x0000C, |
155 | .sense_interrupt_reg = 0x00000, |
156 | .sense_interrupt_reg32 = 0x00004, |
157 | .ioarrin_reg = 0x00070, |
158 | .sense_uproc_interrupt_reg = 0x00020, |
159 | .sense_uproc_interrupt_reg32 = 0x00024, |
160 | .set_uproc_interrupt_reg = 0x00020, |
161 | .set_uproc_interrupt_reg32 = 0x00024, |
162 | .clr_uproc_interrupt_reg = 0x00028, |
163 | .clr_uproc_interrupt_reg32 = 0x0002C, |
164 | .init_feedback_reg = 0x0005C, |
165 | .dump_addr_reg = 0x00064, |
166 | .dump_data_reg = 0x00068, |
167 | .endian_swap_reg = 0x00084 |
168 | } |
169 | }, |
170 | }; |
171 | |
172 | static const struct ipr_chip_t ipr_chip[] = { |
173 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
174 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
175 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
176 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
177 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, true, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
178 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, |
179 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, |
180 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, |
181 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, |
182 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] } |
183 | }; |
184 | |
185 | static int ipr_max_bus_speeds[] = { |
186 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE |
187 | }; |
188 | |
189 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>" ); |
190 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver" ); |
191 | module_param_named(max_speed, ipr_max_speed, uint, 0); |
192 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320" ); |
193 | module_param_named(log_level, ipr_log_level, uint, 0); |
194 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver" ); |
195 | module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); |
196 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries" ); |
197 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); |
198 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)" ); |
199 | module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); |
200 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)" ); |
201 | module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); |
202 | MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)" ); |
203 | module_param_named(max_devs, ipr_max_devs, int, 0); |
204 | MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " |
205 | "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]" ); |
206 | module_param_named(number_of_msix, ipr_number_of_msix, int, 0); |
207 | MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:16)" ); |
208 | module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR); |
209 | MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)" ); |
210 | MODULE_LICENSE("GPL" ); |
211 | MODULE_VERSION(IPR_DRIVER_VERSION); |
212 | |
213 | /* A constant array of IOASCs/URCs/Error Messages */ |
214 | static const |
215 | struct ipr_error_table_t ipr_error_table[] = { |
216 | {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, |
217 | "8155: An unknown error was received" }, |
218 | {0x00330000, 0, 0, |
219 | "Soft underlength error" }, |
220 | {0x005A0000, 0, 0, |
221 | "Command to be cancelled not found" }, |
222 | {0x00808000, 0, 0, |
223 | "Qualified success" }, |
224 | {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, |
225 | "FFFE: Soft device bus error recovered by the IOA" }, |
226 | {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, |
227 | "4101: Soft device bus fabric error" }, |
228 | {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, |
229 | "FFFC: Logical block guard error recovered by the device" }, |
230 | {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, |
231 | "FFFC: Logical block reference tag error recovered by the device" }, |
232 | {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, |
233 | "4171: Recovered scatter list tag / sequence number error" }, |
234 | {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, |
235 | "FF3D: Recovered logical block CRC error on IOA to Host transfer" }, |
236 | {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, |
237 | "4171: Recovered logical block sequence number error on IOA to Host transfer" }, |
238 | {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, |
239 | "FFFD: Recovered logical block reference tag error detected by the IOA" }, |
240 | {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, |
241 | "FFFD: Logical block guard error recovered by the IOA" }, |
242 | {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, |
243 | "FFF9: Device sector reassign successful" }, |
244 | {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, |
245 | "FFF7: Media error recovered by device rewrite procedures" }, |
246 | {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, |
247 | "7001: IOA sector reassignment successful" }, |
248 | {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, |
249 | "FFF9: Soft media error. Sector reassignment recommended" }, |
250 | {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, |
251 | "FFF7: Media error recovered by IOA rewrite procedures" }, |
252 | {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, |
253 | "FF3D: Soft PCI bus error recovered by the IOA" }, |
254 | {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, |
255 | "FFF6: Device hardware error recovered by the IOA" }, |
256 | {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, |
257 | "FFF6: Device hardware error recovered by the device" }, |
258 | {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, |
259 | "FF3D: Soft IOA error recovered by the IOA" }, |
260 | {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, |
261 | "FFFA: Undefined device response recovered by the IOA" }, |
262 | {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
263 | "FFF6: Device bus error, message or command phase" }, |
264 | {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, |
265 | "FFFE: Task Management Function failed" }, |
266 | {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, |
267 | "FFF6: Failure prediction threshold exceeded" }, |
268 | {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, |
269 | "8009: Impending cache battery pack failure" }, |
270 | {0x02040100, 0, 0, |
271 | "Logical Unit in process of becoming ready" }, |
272 | {0x02040200, 0, 0, |
273 | "Initializing command required" }, |
274 | {0x02040400, 0, 0, |
275 | "34FF: Disk device format in progress" }, |
276 | {0x02040C00, 0, 0, |
277 | "Logical unit not accessible, target port in unavailable state" }, |
278 | {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, |
279 | "9070: IOA requested reset" }, |
280 | {0x023F0000, 0, 0, |
281 | "Synchronization required" }, |
282 | {0x02408500, 0, 0, |
283 | "IOA microcode download required" }, |
284 | {0x02408600, 0, 0, |
285 | "Device bus connection is prohibited by host" }, |
286 | {0x024E0000, 0, 0, |
287 | "No ready, IOA shutdown" }, |
288 | {0x025A0000, 0, 0, |
289 | "Not ready, IOA has been shutdown" }, |
290 | {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, |
291 | "3020: Storage subsystem configuration error" }, |
292 | {0x03110B00, 0, 0, |
293 | "FFF5: Medium error, data unreadable, recommend reassign" }, |
294 | {0x03110C00, 0, 0, |
295 | "7000: Medium error, data unreadable, do not reassign" }, |
296 | {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, |
297 | "FFF3: Disk media format bad" }, |
298 | {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, |
299 | "3002: Addressed device failed to respond to selection" }, |
300 | {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, |
301 | "3100: Device bus error" }, |
302 | {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, |
303 | "3109: IOA timed out a device command" }, |
304 | {0x04088000, 0, 0, |
305 | "3120: SCSI bus is not operational" }, |
306 | {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, |
307 | "4100: Hard device bus fabric error" }, |
308 | {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, |
309 | "310C: Logical block guard error detected by the device" }, |
310 | {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, |
311 | "310C: Logical block reference tag error detected by the device" }, |
312 | {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, |
313 | "4170: Scatter list tag / sequence number error" }, |
314 | {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, |
315 | "8150: Logical block CRC error on IOA to Host transfer" }, |
316 | {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, |
317 | "4170: Logical block sequence number error on IOA to Host transfer" }, |
318 | {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, |
319 | "310D: Logical block reference tag error detected by the IOA" }, |
320 | {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, |
321 | "310D: Logical block guard error detected by the IOA" }, |
322 | {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, |
323 | "9000: IOA reserved area data check" }, |
324 | {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, |
325 | "9001: IOA reserved area invalid data pattern" }, |
326 | {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, |
327 | "9002: IOA reserved area LRC error" }, |
328 | {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, |
329 | "Hardware Error, IOA metadata access error" }, |
330 | {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, |
331 | "102E: Out of alternate sectors for disk storage" }, |
332 | {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, |
333 | "FFF4: Data transfer underlength error" }, |
334 | {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, |
335 | "FFF4: Data transfer overlength error" }, |
336 | {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, |
337 | "3400: Logical unit failure" }, |
338 | {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, |
339 | "FFF4: Device microcode is corrupt" }, |
340 | {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, |
341 | "8150: PCI bus error" }, |
342 | {0x04430000, 1, 0, |
343 | "Unsupported device bus message received" }, |
344 | {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, |
345 | "FFF4: Disk device problem" }, |
346 | {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, |
347 | "8150: Permanent IOA failure" }, |
348 | {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, |
349 | "3010: Disk device returned wrong response to IOA" }, |
350 | {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, |
351 | "8151: IOA microcode error" }, |
352 | {0x04448500, 0, 0, |
353 | "Device bus status error" }, |
354 | {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, |
355 | "8157: IOA error requiring IOA reset to recover" }, |
356 | {0x04448700, 0, 0, |
357 | "ATA device status error" }, |
358 | {0x04490000, 0, 0, |
359 | "Message reject received from the device" }, |
360 | {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, |
361 | "8008: A permanent cache battery pack failure occurred" }, |
362 | {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, |
363 | "9090: Disk unit has been modified after the last known status" }, |
364 | {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, |
365 | "9081: IOA detected device error" }, |
366 | {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, |
367 | "9082: IOA detected device error" }, |
368 | {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
369 | "3110: Device bus error, message or command phase" }, |
370 | {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, |
371 | "3110: SAS Command / Task Management Function failed" }, |
372 | {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, |
373 | "9091: Incorrect hardware configuration change has been detected" }, |
374 | {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, |
375 | "9073: Invalid multi-adapter configuration" }, |
376 | {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, |
377 | "4010: Incorrect connection between cascaded expanders" }, |
378 | {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, |
379 | "4020: Connections exceed IOA design limits" }, |
380 | {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, |
381 | "4030: Incorrect multipath connection" }, |
382 | {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, |
383 | "4110: Unsupported enclosure function" }, |
384 | {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL, |
385 | "4120: SAS cable VPD cannot be read" }, |
386 | {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, |
387 | "FFF4: Command to logical unit failed" }, |
388 | {0x05240000, 1, 0, |
389 | "Illegal request, invalid request type or request packet" }, |
390 | {0x05250000, 0, 0, |
391 | "Illegal request, invalid resource handle" }, |
392 | {0x05258000, 0, 0, |
393 | "Illegal request, commands not allowed to this device" }, |
394 | {0x05258100, 0, 0, |
395 | "Illegal request, command not allowed to a secondary adapter" }, |
396 | {0x05258200, 0, 0, |
397 | "Illegal request, command not allowed to a non-optimized resource" }, |
398 | {0x05260000, 0, 0, |
399 | "Illegal request, invalid field in parameter list" }, |
400 | {0x05260100, 0, 0, |
401 | "Illegal request, parameter not supported" }, |
402 | {0x05260200, 0, 0, |
403 | "Illegal request, parameter value invalid" }, |
404 | {0x052C0000, 0, 0, |
405 | "Illegal request, command sequence error" }, |
406 | {0x052C8000, 1, 0, |
407 | "Illegal request, dual adapter support not enabled" }, |
408 | {0x052C8100, 1, 0, |
409 | "Illegal request, another cable connector was physically disabled" }, |
410 | {0x054E8000, 1, 0, |
411 | "Illegal request, inconsistent group id/group count" }, |
412 | {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, |
413 | "9031: Array protection temporarily suspended, protection resuming" }, |
414 | {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, |
415 | "9040: Array protection temporarily suspended, protection resuming" }, |
416 | {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL, |
417 | "4080: IOA exceeded maximum operating temperature" }, |
418 | {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL, |
419 | "4085: Service required" }, |
420 | {0x060B8100, 0, IPR_DEFAULT_LOG_LEVEL, |
421 | "4086: SAS Adapter Hardware Configuration Error" }, |
422 | {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, |
423 | "3140: Device bus not ready to ready transition" }, |
424 | {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, |
425 | "FFFB: SCSI bus was reset" }, |
426 | {0x06290500, 0, 0, |
427 | "FFFE: SCSI bus transition to single ended" }, |
428 | {0x06290600, 0, 0, |
429 | "FFFE: SCSI bus transition to LVD" }, |
430 | {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, |
431 | "FFFB: SCSI bus was reset by another initiator" }, |
432 | {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, |
433 | "3029: A device replacement has occurred" }, |
434 | {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL, |
435 | "4102: Device bus fabric performance degradation" }, |
436 | {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, |
437 | "9051: IOA cache data exists for a missing or failed device" }, |
438 | {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, |
439 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA" }, |
440 | {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, |
441 | "9025: Disk unit is not supported at its physical location" }, |
442 | {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, |
443 | "3020: IOA detected a SCSI bus configuration error" }, |
444 | {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, |
445 | "3150: SCSI bus configuration error" }, |
446 | {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, |
447 | "9074: Asymmetric advanced function disk configuration" }, |
448 | {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, |
449 | "4040: Incomplete multipath connection between IOA and enclosure" }, |
450 | {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, |
451 | "4041: Incomplete multipath connection between enclosure and device" }, |
452 | {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, |
453 | "9075: Incomplete multipath connection between IOA and remote IOA" }, |
454 | {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, |
455 | "9076: Configuration error, missing remote IOA" }, |
456 | {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, |
457 | "4050: Enclosure does not support a required multipath function" }, |
458 | {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL, |
459 | "4121: Configuration error, required cable is missing" }, |
460 | {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL, |
461 | "4122: Cable is not plugged into the correct location on remote IOA" }, |
462 | {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL, |
463 | "4123: Configuration error, invalid cable vital product data" }, |
464 | {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL, |
465 | "4124: Configuration error, both cable ends are plugged into the same IOA" }, |
466 | {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, |
467 | "4070: Logically bad block written on device" }, |
468 | {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, |
469 | "9041: Array protection temporarily suspended" }, |
470 | {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, |
471 | "9042: Corrupt array parity detected on specified device" }, |
472 | {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, |
473 | "9030: Array no longer protected due to missing or failed disk unit" }, |
474 | {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, |
475 | "9071: Link operational transition" }, |
476 | {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, |
477 | "9072: Link not operational transition" }, |
478 | {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, |
479 | "9032: Array exposed but still protected" }, |
480 | {0x066B8300, 0, IPR_DEBUG_LOG_LEVEL, |
481 | "70DD: Device forced failed by disrupt device command" }, |
482 | {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, |
483 | "4061: Multipath redundancy level got better" }, |
484 | {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, |
485 | "4060: Multipath redundancy level got worse" }, |
486 | {0x06808100, 0, IPR_DEBUG_LOG_LEVEL, |
487 | "9083: Device raw mode enabled" }, |
488 | {0x06808200, 0, IPR_DEBUG_LOG_LEVEL, |
489 | "9084: Device raw mode disabled" }, |
490 | {0x07270000, 0, 0, |
491 | "Failure due to other device" }, |
492 | {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, |
493 | "9008: IOA does not support functions expected by devices" }, |
494 | {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, |
495 | "9010: Cache data associated with attached devices cannot be found" }, |
496 | {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, |
497 | "9011: Cache data belongs to devices other than those attached" }, |
498 | {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, |
499 | "9020: Array missing 2 or more devices with only 1 device present" }, |
500 | {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, |
501 | "9021: Array missing 2 or more devices with 2 or more devices present" }, |
502 | {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, |
503 | "9022: Exposed array is missing a required device" }, |
504 | {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, |
505 | "9023: Array member(s) not at required physical locations" }, |
506 | {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, |
507 | "9024: Array not functional due to present hardware configuration" }, |
508 | {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, |
509 | "9026: Array not functional due to present hardware configuration" }, |
510 | {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, |
511 | "9027: Array is missing a device and parity is out of sync" }, |
512 | {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, |
513 | "9028: Maximum number of arrays already exist" }, |
514 | {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, |
515 | "9050: Required cache data cannot be located for a disk unit" }, |
516 | {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, |
517 | "9052: Cache data exists for a device that has been modified" }, |
518 | {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, |
519 | "9054: IOA resources not available due to previous problems" }, |
520 | {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, |
521 | "9092: Disk unit requires initialization before use" }, |
522 | {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, |
523 | "9029: Incorrect hardware configuration change has been detected" }, |
524 | {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, |
525 | "9060: One or more disk pairs are missing from an array" }, |
526 | {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, |
527 | "9061: One or more disks are missing from an array" }, |
528 | {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, |
529 | "9062: One or more disks are missing from an array" }, |
530 | {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, |
531 | "9063: Maximum number of functional arrays has been exceeded" }, |
532 | {0x07279A00, 0, 0, |
533 | "Data protect, other volume set problem" }, |
534 | {0x0B260000, 0, 0, |
535 | "Aborted command, invalid descriptor" }, |
536 | {0x0B3F9000, 0, 0, |
537 | "Target operating conditions have changed, dual adapter takeover" }, |
538 | {0x0B530200, 0, 0, |
539 | "Aborted command, medium removal prevented" }, |
540 | {0x0B5A0000, 0, 0, |
541 | "Command terminated by host" }, |
542 | {0x0B5B8000, 0, 0, |
543 | "Aborted command, command terminated by host" } |
544 | }; |
545 | |
546 | static const struct ipr_ses_table_entry ipr_ses_table[] = { |
547 | { "2104-DL1 " , "XXXXXXXXXXXXXXXX" , 80 }, |
548 | { "2104-TL1 " , "XXXXXXXXXXXXXXXX" , 80 }, |
549 | { "HSBP07M P U2SCSI" , "XXXXXXXXXXXXXXXX" , 80 }, /* Hidive 7 slot */ |
550 | { "HSBP05M P U2SCSI" , "XXXXXXXXXXXXXXXX" , 80 }, /* Hidive 5 slot */ |
551 | { "HSBP05M S U2SCSI" , "XXXXXXXXXXXXXXXX" , 80 }, /* Bowtie */ |
552 | { "HSBP06E ASU2SCSI" , "XXXXXXXXXXXXXXXX" , 80 }, /* MartinFenning */ |
553 | { "2104-DU3 " , "XXXXXXXXXXXXXXXX" , 160 }, |
554 | { "2104-TU3 " , "XXXXXXXXXXXXXXXX" , 160 }, |
555 | { "HSBP04C RSU2SCSI" , "XXXXXXX*XXXXXXXX" , 160 }, |
556 | { "HSBP06E RSU2SCSI" , "XXXXXXX*XXXXXXXX" , 160 }, |
557 | { "St V1S2 " , "XXXXXXXXXXXXXXXX" , 160 }, |
558 | { "HSBPD4M PU3SCSI" , "XXXXXXX*XXXXXXXX" , 160 }, |
559 | { "VSBPD1H U3SCSI" , "XXXXXXX*XXXXXXXX" , 160 } |
560 | }; |
561 | |
562 | /* |
563 | * Function Prototypes |
564 | */ |
565 | static int ipr_reset_alert(struct ipr_cmnd *); |
566 | static void ipr_process_ccn(struct ipr_cmnd *); |
567 | static void ipr_process_error(struct ipr_cmnd *); |
568 | static void ipr_reset_ioa_job(struct ipr_cmnd *); |
569 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, |
570 | enum ipr_shutdown_type); |
571 | |
572 | #ifdef CONFIG_SCSI_IPR_TRACE |
573 | /** |
574 | * ipr_trc_hook - Add a trace entry to the driver trace |
575 | * @ipr_cmd: ipr command struct |
576 | * @type: trace type |
577 | * @add_data: additional data |
578 | * |
579 | * Return value: |
580 | * none |
581 | **/ |
582 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, |
583 | u8 type, u32 add_data) |
584 | { |
585 | struct ipr_trace_entry *trace_entry; |
586 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
587 | unsigned int trace_index; |
588 | |
589 | trace_index = atomic_add_return(i: 1, v: &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK; |
590 | trace_entry = &ioa_cfg->trace[trace_index]; |
591 | trace_entry->time = jiffies; |
592 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; |
593 | trace_entry->type = type; |
594 | trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; |
595 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; |
596 | trace_entry->u.add_data = add_data; |
597 | wmb(); |
598 | } |
599 | #else |
600 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0) |
601 | #endif |
602 | |
603 | /** |
604 | * ipr_lock_and_done - Acquire lock and complete command |
605 | * @ipr_cmd: ipr command struct |
606 | * |
607 | * Return value: |
608 | * none |
609 | **/ |
610 | static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd) |
611 | { |
612 | unsigned long lock_flags; |
613 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
614 | |
615 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
616 | ipr_cmd->done(ipr_cmd); |
617 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
618 | } |
619 | |
620 | /** |
621 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse |
622 | * @ipr_cmd: ipr command struct |
623 | * |
624 | * Return value: |
625 | * none |
626 | **/ |
627 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) |
628 | { |
629 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
630 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
631 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
632 | int hrrq_id; |
633 | |
634 | hrrq_id = ioarcb->cmd_pkt.hrrq_id; |
635 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); |
636 | ioarcb->cmd_pkt.hrrq_id = hrrq_id; |
637 | ioarcb->data_transfer_length = 0; |
638 | ioarcb->read_data_transfer_length = 0; |
639 | ioarcb->ioadl_len = 0; |
640 | ioarcb->read_ioadl_len = 0; |
641 | |
642 | if (ipr_cmd->ioa_cfg->sis64) { |
643 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
644 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); |
645 | } else { |
646 | ioarcb->write_ioadl_addr = |
647 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); |
648 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
649 | } |
650 | |
651 | ioasa->hdr.ioasc = 0; |
652 | ioasa->hdr.residual_data_len = 0; |
653 | ipr_cmd->scsi_cmd = NULL; |
654 | ipr_cmd->sense_buffer[0] = 0; |
655 | ipr_cmd->dma_use_sg = 0; |
656 | } |
657 | |
658 | /** |
659 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block |
660 | * @ipr_cmd: ipr command struct |
661 | * @fast_done: fast done function call-back |
662 | * |
663 | * Return value: |
664 | * none |
665 | **/ |
666 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd, |
667 | void (*fast_done) (struct ipr_cmnd *)) |
668 | { |
669 | ipr_reinit_ipr_cmnd(ipr_cmd); |
670 | ipr_cmd->u.scratch = 0; |
671 | ipr_cmd->sibling = NULL; |
672 | ipr_cmd->eh_comp = NULL; |
673 | ipr_cmd->fast_done = fast_done; |
674 | timer_setup(&ipr_cmd->timer, NULL, 0); |
675 | } |
676 | |
677 | /** |
678 | * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block |
679 | * @hrrq: hrr queue |
680 | * |
681 | * Return value: |
682 | * pointer to ipr command struct |
683 | **/ |
684 | static |
685 | struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq) |
686 | { |
687 | struct ipr_cmnd *ipr_cmd = NULL; |
688 | |
689 | if (likely(!list_empty(&hrrq->hrrq_free_q))) { |
690 | ipr_cmd = list_entry(hrrq->hrrq_free_q.next, |
691 | struct ipr_cmnd, queue); |
692 | list_del(entry: &ipr_cmd->queue); |
693 | } |
694 | |
695 | |
696 | return ipr_cmd; |
697 | } |
698 | |
699 | /** |
700 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it |
701 | * @ioa_cfg: ioa config struct |
702 | * |
703 | * Return value: |
704 | * pointer to ipr command struct |
705 | **/ |
706 | static |
707 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) |
708 | { |
709 | struct ipr_cmnd *ipr_cmd = |
710 | __ipr_get_free_ipr_cmnd(hrrq: &ioa_cfg->hrrq[IPR_INIT_HRRQ]); |
711 | ipr_init_ipr_cmnd(ipr_cmd, fast_done: ipr_lock_and_done); |
712 | return ipr_cmd; |
713 | } |
714 | |
715 | /** |
716 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts |
717 | * @ioa_cfg: ioa config struct |
718 | * @clr_ints: interrupts to clear |
719 | * |
720 | * This function masks all interrupts on the adapter, then clears the |
721 | * interrupts specified in the mask |
722 | * |
723 | * Return value: |
724 | * none |
725 | **/ |
726 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, |
727 | u32 clr_ints) |
728 | { |
729 | int i; |
730 | |
731 | /* Stop new interrupts */ |
732 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
733 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
734 | ioa_cfg->hrrq[i].allow_interrupts = 0; |
735 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
736 | } |
737 | |
738 | /* Set interrupt mask to stop all new interrupts */ |
739 | if (ioa_cfg->sis64) |
740 | writeq(val: ~0, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
741 | else |
742 | writel(val: ~0, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
743 | |
744 | /* Clear any pending interrupts */ |
745 | if (ioa_cfg->sis64) |
746 | writel(val: ~0, addr: ioa_cfg->regs.clr_interrupt_reg); |
747 | writel(val: clr_ints, addr: ioa_cfg->regs.clr_interrupt_reg32); |
748 | readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
749 | } |
750 | |
751 | /** |
752 | * ipr_save_pcix_cmd_reg - Save PCI-X command register |
753 | * @ioa_cfg: ioa config struct |
754 | * |
755 | * Return value: |
756 | * 0 on success / -EIO on failure |
757 | **/ |
758 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) |
759 | { |
760 | int pcix_cmd_reg = pci_find_capability(dev: ioa_cfg->pdev, PCI_CAP_ID_PCIX); |
761 | int rc; |
762 | |
763 | if (pcix_cmd_reg == 0) |
764 | return 0; |
765 | |
766 | rc = pci_read_config_word(dev: ioa_cfg->pdev, where: pcix_cmd_reg + PCI_X_CMD, |
767 | val: &ioa_cfg->saved_pcix_cmd_reg); |
768 | if (rc != PCIBIOS_SUCCESSFUL) { |
769 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n" ); |
770 | return -EIO; |
771 | } |
772 | |
773 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; |
774 | return 0; |
775 | } |
776 | |
777 | /** |
778 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register |
779 | * @ioa_cfg: ioa config struct |
780 | * |
781 | * Return value: |
782 | * 0 on success / -EIO on failure |
783 | **/ |
784 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) |
785 | { |
786 | int pcix_cmd_reg = pci_find_capability(dev: ioa_cfg->pdev, PCI_CAP_ID_PCIX); |
787 | int rc; |
788 | |
789 | if (pcix_cmd_reg) { |
790 | rc = pci_write_config_word(dev: ioa_cfg->pdev, where: pcix_cmd_reg + PCI_X_CMD, |
791 | val: ioa_cfg->saved_pcix_cmd_reg); |
792 | if (rc != PCIBIOS_SUCCESSFUL) { |
793 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n" ); |
794 | return -EIO; |
795 | } |
796 | } |
797 | |
798 | return 0; |
799 | } |
800 | |
801 | |
802 | /** |
803 | * __ipr_scsi_eh_done - mid-layer done function for aborted ops |
804 | * @ipr_cmd: ipr command struct |
805 | * |
806 | * This function is invoked by the interrupt handler for |
807 | * ops generated by the SCSI mid-layer which are being aborted. |
808 | * |
809 | * Return value: |
810 | * none |
811 | **/ |
812 | static void __ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) |
813 | { |
814 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
815 | |
816 | scsi_cmd->result |= (DID_ERROR << 16); |
817 | |
818 | scsi_dma_unmap(cmd: ipr_cmd->scsi_cmd); |
819 | scsi_done(cmd: scsi_cmd); |
820 | if (ipr_cmd->eh_comp) |
821 | complete(ipr_cmd->eh_comp); |
822 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
823 | } |
824 | |
825 | /** |
826 | * ipr_scsi_eh_done - mid-layer done function for aborted ops |
827 | * @ipr_cmd: ipr command struct |
828 | * |
829 | * This function is invoked by the interrupt handler for |
830 | * ops generated by the SCSI mid-layer which are being aborted. |
831 | * |
832 | * Return value: |
833 | * none |
834 | **/ |
835 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) |
836 | { |
837 | unsigned long hrrq_flags; |
838 | struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; |
839 | |
840 | spin_lock_irqsave(&hrrq->_lock, hrrq_flags); |
841 | __ipr_scsi_eh_done(ipr_cmd); |
842 | spin_unlock_irqrestore(lock: &hrrq->_lock, flags: hrrq_flags); |
843 | } |
844 | |
845 | /** |
846 | * ipr_fail_all_ops - Fails all outstanding ops. |
847 | * @ioa_cfg: ioa config struct |
848 | * |
849 | * This function fails all outstanding ops. |
850 | * |
851 | * Return value: |
852 | * none |
853 | **/ |
854 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) |
855 | { |
856 | struct ipr_cmnd *ipr_cmd, *temp; |
857 | struct ipr_hrr_queue *hrrq; |
858 | |
859 | ENTER; |
860 | for_each_hrrq(hrrq, ioa_cfg) { |
861 | spin_lock(lock: &hrrq->_lock); |
862 | list_for_each_entry_safe(ipr_cmd, |
863 | temp, &hrrq->hrrq_pending_q, queue) { |
864 | list_del(entry: &ipr_cmd->queue); |
865 | |
866 | ipr_cmd->s.ioasa.hdr.ioasc = |
867 | cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); |
868 | ipr_cmd->s.ioasa.hdr.ilid = |
869 | cpu_to_be32(IPR_DRIVER_ILID); |
870 | |
871 | if (ipr_cmd->scsi_cmd) |
872 | ipr_cmd->done = __ipr_scsi_eh_done; |
873 | |
874 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, |
875 | IPR_IOASC_IOA_WAS_RESET); |
876 | del_timer(timer: &ipr_cmd->timer); |
877 | ipr_cmd->done(ipr_cmd); |
878 | } |
879 | spin_unlock(lock: &hrrq->_lock); |
880 | } |
881 | LEAVE; |
882 | } |
883 | |
884 | /** |
885 | * ipr_send_command - Send driver initiated requests. |
886 | * @ipr_cmd: ipr command struct |
887 | * |
888 | * This function sends a command to the adapter using the correct write call. |
889 | * In the case of sis64, calculate the ioarcb size required. Then or in the |
890 | * appropriate bits. |
891 | * |
892 | * Return value: |
893 | * none |
894 | **/ |
895 | static void ipr_send_command(struct ipr_cmnd *ipr_cmd) |
896 | { |
897 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
898 | dma_addr_t send_dma_addr = ipr_cmd->dma_addr; |
899 | |
900 | if (ioa_cfg->sis64) { |
901 | /* The default size is 256 bytes */ |
902 | send_dma_addr |= 0x1; |
903 | |
904 | /* If the number of ioadls * size of ioadl > 128 bytes, |
905 | then use a 512 byte ioarcb */ |
906 | if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) |
907 | send_dma_addr |= 0x4; |
908 | writeq(val: send_dma_addr, addr: ioa_cfg->regs.ioarrin_reg); |
909 | } else |
910 | writel(val: send_dma_addr, addr: ioa_cfg->regs.ioarrin_reg); |
911 | } |
912 | |
913 | /** |
914 | * ipr_do_req - Send driver initiated requests. |
915 | * @ipr_cmd: ipr command struct |
916 | * @done: done function |
917 | * @timeout_func: timeout function |
918 | * @timeout: timeout value |
919 | * |
920 | * This function sends the specified command to the adapter with the |
921 | * timeout given. The done function is invoked on command completion. |
922 | * |
923 | * Return value: |
924 | * none |
925 | **/ |
926 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, |
927 | void (*done) (struct ipr_cmnd *), |
928 | void (*timeout_func) (struct timer_list *), u32 timeout) |
929 | { |
930 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
931 | |
932 | ipr_cmd->done = done; |
933 | |
934 | ipr_cmd->timer.expires = jiffies + timeout; |
935 | ipr_cmd->timer.function = timeout_func; |
936 | |
937 | add_timer(timer: &ipr_cmd->timer); |
938 | |
939 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, add_data: 0); |
940 | |
941 | ipr_send_command(ipr_cmd); |
942 | } |
943 | |
944 | /** |
945 | * ipr_internal_cmd_done - Op done function for an internally generated op. |
946 | * @ipr_cmd: ipr command struct |
947 | * |
948 | * This function is the op done function for an internally generated, |
949 | * blocking op. It simply wakes the sleeping thread. |
950 | * |
951 | * Return value: |
952 | * none |
953 | **/ |
954 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) |
955 | { |
956 | if (ipr_cmd->sibling) |
957 | ipr_cmd->sibling = NULL; |
958 | else |
959 | complete(&ipr_cmd->completion); |
960 | } |
961 | |
962 | /** |
963 | * ipr_init_ioadl - initialize the ioadl for the correct SIS type |
964 | * @ipr_cmd: ipr command struct |
965 | * @dma_addr: dma address |
966 | * @len: transfer length |
967 | * @flags: ioadl flag value |
968 | * |
969 | * This function initializes an ioadl in the case where there is only a single |
970 | * descriptor. |
971 | * |
972 | * Return value: |
973 | * nothing |
974 | **/ |
975 | static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, |
976 | u32 len, int flags) |
977 | { |
978 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
979 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; |
980 | |
981 | ipr_cmd->dma_use_sg = 1; |
982 | |
983 | if (ipr_cmd->ioa_cfg->sis64) { |
984 | ioadl64->flags = cpu_to_be32(flags); |
985 | ioadl64->data_len = cpu_to_be32(len); |
986 | ioadl64->address = cpu_to_be64(dma_addr); |
987 | |
988 | ipr_cmd->ioarcb.ioadl_len = |
989 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); |
990 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); |
991 | } else { |
992 | ioadl->flags_and_data_len = cpu_to_be32(flags | len); |
993 | ioadl->address = cpu_to_be32(dma_addr); |
994 | |
995 | if (flags == IPR_IOADL_FLAGS_READ_LAST) { |
996 | ipr_cmd->ioarcb.read_ioadl_len = |
997 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
998 | ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); |
999 | } else { |
1000 | ipr_cmd->ioarcb.ioadl_len = |
1001 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
1002 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); |
1003 | } |
1004 | } |
1005 | } |
1006 | |
1007 | /** |
1008 | * ipr_send_blocking_cmd - Send command and sleep on its completion. |
1009 | * @ipr_cmd: ipr command struct |
1010 | * @timeout_func: function to invoke if command times out |
1011 | * @timeout: timeout |
1012 | * |
1013 | * Return value: |
1014 | * none |
1015 | **/ |
1016 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, |
1017 | void (*timeout_func) (struct timer_list *), |
1018 | u32 timeout) |
1019 | { |
1020 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
1021 | |
1022 | init_completion(x: &ipr_cmd->completion); |
1023 | ipr_do_req(ipr_cmd, done: ipr_internal_cmd_done, timeout_func, timeout); |
1024 | |
1025 | spin_unlock_irq(lock: ioa_cfg->host->host_lock); |
1026 | wait_for_completion(&ipr_cmd->completion); |
1027 | spin_lock_irq(lock: ioa_cfg->host->host_lock); |
1028 | } |
1029 | |
1030 | static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg) |
1031 | { |
1032 | unsigned int hrrq; |
1033 | |
1034 | if (ioa_cfg->hrrq_num == 1) |
1035 | hrrq = 0; |
1036 | else { |
1037 | hrrq = atomic_add_return(i: 1, v: &ioa_cfg->hrrq_index); |
1038 | hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1; |
1039 | } |
1040 | return hrrq; |
1041 | } |
1042 | |
1043 | /** |
1044 | * ipr_send_hcam - Send an HCAM to the adapter. |
1045 | * @ioa_cfg: ioa config struct |
1046 | * @type: HCAM type |
1047 | * @hostrcb: hostrcb struct |
1048 | * |
1049 | * This function will send a Host Controlled Async command to the adapter. |
1050 | * If HCAMs are currently not allowed to be issued to the adapter, it will |
1051 | * place the hostrcb on the free queue. |
1052 | * |
1053 | * Return value: |
1054 | * none |
1055 | **/ |
1056 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, |
1057 | struct ipr_hostrcb *hostrcb) |
1058 | { |
1059 | struct ipr_cmnd *ipr_cmd; |
1060 | struct ipr_ioarcb *ioarcb; |
1061 | |
1062 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { |
1063 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
1064 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
1065 | list_add_tail(new: &hostrcb->queue, head: &ioa_cfg->hostrcb_pending_q); |
1066 | |
1067 | ipr_cmd->u.hostrcb = hostrcb; |
1068 | ioarcb = &ipr_cmd->ioarcb; |
1069 | |
1070 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
1071 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; |
1072 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; |
1073 | ioarcb->cmd_pkt.cdb[1] = type; |
1074 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; |
1075 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; |
1076 | |
1077 | ipr_init_ioadl(ipr_cmd, dma_addr: hostrcb->hostrcb_dma, |
1078 | len: sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); |
1079 | |
1080 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) |
1081 | ipr_cmd->done = ipr_process_ccn; |
1082 | else |
1083 | ipr_cmd->done = ipr_process_error; |
1084 | |
1085 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); |
1086 | |
1087 | ipr_send_command(ipr_cmd); |
1088 | } else { |
1089 | list_add_tail(new: &hostrcb->queue, head: &ioa_cfg->hostrcb_free_q); |
1090 | } |
1091 | } |
1092 | |
1093 | /** |
1094 | * ipr_init_res_entry - Initialize a resource entry struct. |
1095 | * @res: resource entry struct |
1096 | * @cfgtew: config table entry wrapper struct |
1097 | * |
1098 | * Return value: |
1099 | * none |
1100 | **/ |
1101 | static void ipr_init_res_entry(struct ipr_resource_entry *res, |
1102 | struct ipr_config_table_entry_wrapper *cfgtew) |
1103 | { |
1104 | int found = 0; |
1105 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; |
1106 | struct ipr_resource_entry *gscsi_res = NULL; |
1107 | |
1108 | res->needs_sync_complete = 0; |
1109 | res->in_erp = 0; |
1110 | res->add_to_ml = 0; |
1111 | res->del_from_ml = 0; |
1112 | res->resetting_device = 0; |
1113 | res->reset_occurred = 0; |
1114 | res->sdev = NULL; |
1115 | |
1116 | if (ioa_cfg->sis64) { |
1117 | res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); |
1118 | res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); |
1119 | res->qmodel = IPR_QUEUEING_MODEL64(res); |
1120 | res->type = cfgtew->u.cfgte64->res_type; |
1121 | |
1122 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, |
1123 | sizeof(res->res_path)); |
1124 | |
1125 | res->bus = 0; |
1126 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, |
1127 | sizeof(res->dev_lun.scsi_lun)); |
1128 | res->lun = scsilun_to_int(&res->dev_lun); |
1129 | |
1130 | if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { |
1131 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { |
1132 | if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { |
1133 | found = 1; |
1134 | res->target = gscsi_res->target; |
1135 | break; |
1136 | } |
1137 | } |
1138 | if (!found) { |
1139 | res->target = find_first_zero_bit(addr: ioa_cfg->target_ids, |
1140 | size: ioa_cfg->max_devs_supported); |
1141 | set_bit(nr: res->target, addr: ioa_cfg->target_ids); |
1142 | } |
1143 | } else if (res->type == IPR_RES_TYPE_IOAFP) { |
1144 | res->bus = IPR_IOAFP_VIRTUAL_BUS; |
1145 | res->target = 0; |
1146 | } else if (res->type == IPR_RES_TYPE_ARRAY) { |
1147 | res->bus = IPR_ARRAY_VIRTUAL_BUS; |
1148 | res->target = find_first_zero_bit(addr: ioa_cfg->array_ids, |
1149 | size: ioa_cfg->max_devs_supported); |
1150 | set_bit(nr: res->target, addr: ioa_cfg->array_ids); |
1151 | } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { |
1152 | res->bus = IPR_VSET_VIRTUAL_BUS; |
1153 | res->target = find_first_zero_bit(addr: ioa_cfg->vset_ids, |
1154 | size: ioa_cfg->max_devs_supported); |
1155 | set_bit(nr: res->target, addr: ioa_cfg->vset_ids); |
1156 | } else { |
1157 | res->target = find_first_zero_bit(addr: ioa_cfg->target_ids, |
1158 | size: ioa_cfg->max_devs_supported); |
1159 | set_bit(nr: res->target, addr: ioa_cfg->target_ids); |
1160 | } |
1161 | } else { |
1162 | res->qmodel = IPR_QUEUEING_MODEL(res); |
1163 | res->flags = cfgtew->u.cfgte->flags; |
1164 | if (res->flags & IPR_IS_IOA_RESOURCE) |
1165 | res->type = IPR_RES_TYPE_IOAFP; |
1166 | else |
1167 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; |
1168 | |
1169 | res->bus = cfgtew->u.cfgte->res_addr.bus; |
1170 | res->target = cfgtew->u.cfgte->res_addr.target; |
1171 | res->lun = cfgtew->u.cfgte->res_addr.lun; |
1172 | res->lun_wwn = get_unaligned_be64(p: cfgtew->u.cfgte->lun_wwn); |
1173 | } |
1174 | } |
1175 | |
1176 | /** |
1177 | * ipr_is_same_device - Determine if two devices are the same. |
1178 | * @res: resource entry struct |
1179 | * @cfgtew: config table entry wrapper struct |
1180 | * |
1181 | * Return value: |
1182 | * 1 if the devices are the same / 0 otherwise |
1183 | **/ |
1184 | static int ipr_is_same_device(struct ipr_resource_entry *res, |
1185 | struct ipr_config_table_entry_wrapper *cfgtew) |
1186 | { |
1187 | if (res->ioa_cfg->sis64) { |
1188 | if (!memcmp(p: &res->dev_id, q: &cfgtew->u.cfgte64->dev_id, |
1189 | size: sizeof(cfgtew->u.cfgte64->dev_id)) && |
1190 | !memcmp(p: &res->dev_lun.scsi_lun, q: &cfgtew->u.cfgte64->lun, |
1191 | size: sizeof(cfgtew->u.cfgte64->lun))) { |
1192 | return 1; |
1193 | } |
1194 | } else { |
1195 | if (res->bus == cfgtew->u.cfgte->res_addr.bus && |
1196 | res->target == cfgtew->u.cfgte->res_addr.target && |
1197 | res->lun == cfgtew->u.cfgte->res_addr.lun) |
1198 | return 1; |
1199 | } |
1200 | |
1201 | return 0; |
1202 | } |
1203 | |
1204 | /** |
1205 | * __ipr_format_res_path - Format the resource path for printing. |
1206 | * @res_path: resource path |
1207 | * @buffer: buffer |
1208 | * @len: length of buffer provided |
1209 | * |
1210 | * Return value: |
1211 | * pointer to buffer |
1212 | **/ |
1213 | static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len) |
1214 | { |
1215 | int i; |
1216 | char *p = buffer; |
1217 | |
1218 | *p = '\0'; |
1219 | p += scnprintf(buf: p, size: buffer + len - p, fmt: "%02X" , res_path[0]); |
1220 | for (i = 1; res_path[i] != 0xff && i < IPR_RES_PATH_BYTES; i++) |
1221 | p += scnprintf(buf: p, size: buffer + len - p, fmt: "-%02X" , res_path[i]); |
1222 | |
1223 | return buffer; |
1224 | } |
1225 | |
1226 | /** |
1227 | * ipr_format_res_path - Format the resource path for printing. |
1228 | * @ioa_cfg: ioa config struct |
1229 | * @res_path: resource path |
1230 | * @buffer: buffer |
1231 | * @len: length of buffer provided |
1232 | * |
1233 | * Return value: |
1234 | * pointer to buffer |
1235 | **/ |
1236 | static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg, |
1237 | u8 *res_path, char *buffer, int len) |
1238 | { |
1239 | char *p = buffer; |
1240 | |
1241 | *p = '\0'; |
1242 | p += scnprintf(buf: p, size: buffer + len - p, fmt: "%d/" , ioa_cfg->host->host_no); |
1243 | __ipr_format_res_path(res_path, buffer: p, len: len - (p - buffer)); |
1244 | return buffer; |
1245 | } |
1246 | |
1247 | /** |
1248 | * ipr_update_res_entry - Update the resource entry. |
1249 | * @res: resource entry struct |
1250 | * @cfgtew: config table entry wrapper struct |
1251 | * |
1252 | * Return value: |
1253 | * none |
1254 | **/ |
1255 | static void ipr_update_res_entry(struct ipr_resource_entry *res, |
1256 | struct ipr_config_table_entry_wrapper *cfgtew) |
1257 | { |
1258 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
1259 | int new_path = 0; |
1260 | |
1261 | if (res->ioa_cfg->sis64) { |
1262 | res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); |
1263 | res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); |
1264 | res->type = cfgtew->u.cfgte64->res_type; |
1265 | |
1266 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, |
1267 | sizeof(struct ipr_std_inq_data)); |
1268 | |
1269 | res->qmodel = IPR_QUEUEING_MODEL64(res); |
1270 | res->res_handle = cfgtew->u.cfgte64->res_handle; |
1271 | res->dev_id = cfgtew->u.cfgte64->dev_id; |
1272 | |
1273 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, |
1274 | sizeof(res->dev_lun.scsi_lun)); |
1275 | |
1276 | if (memcmp(p: res->res_path, q: &cfgtew->u.cfgte64->res_path, |
1277 | size: sizeof(res->res_path))) { |
1278 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, |
1279 | sizeof(res->res_path)); |
1280 | new_path = 1; |
1281 | } |
1282 | |
1283 | if (res->sdev && new_path) |
1284 | sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n" , |
1285 | ipr_format_res_path(res->ioa_cfg, |
1286 | res->res_path, buffer, sizeof(buffer))); |
1287 | } else { |
1288 | res->flags = cfgtew->u.cfgte->flags; |
1289 | if (res->flags & IPR_IS_IOA_RESOURCE) |
1290 | res->type = IPR_RES_TYPE_IOAFP; |
1291 | else |
1292 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; |
1293 | |
1294 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, |
1295 | sizeof(struct ipr_std_inq_data)); |
1296 | |
1297 | res->qmodel = IPR_QUEUEING_MODEL(res); |
1298 | res->res_handle = cfgtew->u.cfgte->res_handle; |
1299 | } |
1300 | } |
1301 | |
1302 | /** |
1303 | * ipr_clear_res_target - Clear the bit in the bit map representing the target |
1304 | * for the resource. |
1305 | * @res: resource entry struct |
1306 | * |
1307 | * Return value: |
1308 | * none |
1309 | **/ |
1310 | static void ipr_clear_res_target(struct ipr_resource_entry *res) |
1311 | { |
1312 | struct ipr_resource_entry *gscsi_res = NULL; |
1313 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; |
1314 | |
1315 | if (!ioa_cfg->sis64) |
1316 | return; |
1317 | |
1318 | if (res->bus == IPR_ARRAY_VIRTUAL_BUS) |
1319 | clear_bit(nr: res->target, addr: ioa_cfg->array_ids); |
1320 | else if (res->bus == IPR_VSET_VIRTUAL_BUS) |
1321 | clear_bit(nr: res->target, addr: ioa_cfg->vset_ids); |
1322 | else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { |
1323 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) |
1324 | if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) |
1325 | return; |
1326 | clear_bit(nr: res->target, addr: ioa_cfg->target_ids); |
1327 | |
1328 | } else if (res->bus == 0) |
1329 | clear_bit(nr: res->target, addr: ioa_cfg->target_ids); |
1330 | } |
1331 | |
1332 | /** |
1333 | * ipr_handle_config_change - Handle a config change from the adapter |
1334 | * @ioa_cfg: ioa config struct |
1335 | * @hostrcb: hostrcb |
1336 | * |
1337 | * Return value: |
1338 | * none |
1339 | **/ |
1340 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, |
1341 | struct ipr_hostrcb *hostrcb) |
1342 | { |
1343 | struct ipr_resource_entry *res = NULL; |
1344 | struct ipr_config_table_entry_wrapper cfgtew; |
1345 | __be32 cc_res_handle; |
1346 | |
1347 | u32 is_ndn = 1; |
1348 | |
1349 | if (ioa_cfg->sis64) { |
1350 | cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; |
1351 | cc_res_handle = cfgtew.u.cfgte64->res_handle; |
1352 | } else { |
1353 | cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; |
1354 | cc_res_handle = cfgtew.u.cfgte->res_handle; |
1355 | } |
1356 | |
1357 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
1358 | if (res->res_handle == cc_res_handle) { |
1359 | is_ndn = 0; |
1360 | break; |
1361 | } |
1362 | } |
1363 | |
1364 | if (is_ndn) { |
1365 | if (list_empty(head: &ioa_cfg->free_res_q)) { |
1366 | ipr_send_hcam(ioa_cfg, |
1367 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, |
1368 | hostrcb); |
1369 | return; |
1370 | } |
1371 | |
1372 | res = list_entry(ioa_cfg->free_res_q.next, |
1373 | struct ipr_resource_entry, queue); |
1374 | |
1375 | list_del(entry: &res->queue); |
1376 | ipr_init_res_entry(res, cfgtew: &cfgtew); |
1377 | list_add_tail(new: &res->queue, head: &ioa_cfg->used_res_q); |
1378 | } |
1379 | |
1380 | ipr_update_res_entry(res, cfgtew: &cfgtew); |
1381 | |
1382 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { |
1383 | if (res->sdev) { |
1384 | res->del_from_ml = 1; |
1385 | res->res_handle = IPR_INVALID_RES_HANDLE; |
1386 | schedule_work(work: &ioa_cfg->work_q); |
1387 | } else { |
1388 | ipr_clear_res_target(res); |
1389 | list_move_tail(list: &res->queue, head: &ioa_cfg->free_res_q); |
1390 | } |
1391 | } else if (!res->sdev || res->del_from_ml) { |
1392 | res->add_to_ml = 1; |
1393 | schedule_work(work: &ioa_cfg->work_q); |
1394 | } |
1395 | |
1396 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
1397 | } |
1398 | |
1399 | /** |
1400 | * ipr_process_ccn - Op done function for a CCN. |
1401 | * @ipr_cmd: ipr command struct |
1402 | * |
1403 | * This function is the op done function for a configuration |
1404 | * change notification host controlled async from the adapter. |
1405 | * |
1406 | * Return value: |
1407 | * none |
1408 | **/ |
1409 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) |
1410 | { |
1411 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
1412 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; |
1413 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1414 | |
1415 | list_del_init(entry: &hostrcb->queue); |
1416 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
1417 | |
1418 | if (ioasc) { |
1419 | if (ioasc != IPR_IOASC_IOA_WAS_RESET && |
1420 | ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) |
1421 | dev_err(&ioa_cfg->pdev->dev, |
1422 | "Host RCB failed with IOASC: 0x%08X\n" , ioasc); |
1423 | |
1424 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
1425 | } else { |
1426 | ipr_handle_config_change(ioa_cfg, hostrcb); |
1427 | } |
1428 | } |
1429 | |
1430 | /** |
1431 | * strip_whitespace - Strip and pad trailing whitespace. |
1432 | * @i: size of buffer |
1433 | * @buf: string to modify |
1434 | * |
1435 | * This function will strip all trailing whitespace and |
1436 | * NUL terminate the string. |
1437 | * |
1438 | **/ |
1439 | static void strip_whitespace(int i, char *buf) |
1440 | { |
1441 | if (i < 1) |
1442 | return; |
1443 | i--; |
1444 | while (i && buf[i] == ' ') |
1445 | i--; |
1446 | buf[i+1] = '\0'; |
1447 | } |
1448 | |
1449 | /** |
1450 | * ipr_log_vpd_compact - Log the passed extended VPD compactly. |
1451 | * @prefix: string to print at start of printk |
1452 | * @hostrcb: hostrcb pointer |
1453 | * @vpd: vendor/product id/sn struct |
1454 | * |
1455 | * Return value: |
1456 | * none |
1457 | **/ |
1458 | static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, |
1459 | struct ipr_vpd *vpd) |
1460 | { |
1461 | char vendor_id[IPR_VENDOR_ID_LEN + 1]; |
1462 | char product_id[IPR_PROD_ID_LEN + 1]; |
1463 | char sn[IPR_SERIAL_NUM_LEN + 1]; |
1464 | |
1465 | memcpy(vendor_id, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
1466 | strip_whitespace(IPR_VENDOR_ID_LEN, buf: vendor_id); |
1467 | |
1468 | memcpy(product_id, vpd->vpids.product_id, IPR_PROD_ID_LEN); |
1469 | strip_whitespace(IPR_PROD_ID_LEN, buf: product_id); |
1470 | |
1471 | memcpy(sn, vpd->sn, IPR_SERIAL_NUM_LEN); |
1472 | strip_whitespace(IPR_SERIAL_NUM_LEN, buf: sn); |
1473 | |
1474 | ipr_hcam_err(hostrcb, "%s VPID/SN: %s %s %s\n" , prefix, |
1475 | vendor_id, product_id, sn); |
1476 | } |
1477 | |
1478 | /** |
1479 | * ipr_log_vpd - Log the passed VPD to the error log. |
1480 | * @vpd: vendor/product id/sn struct |
1481 | * |
1482 | * Return value: |
1483 | * none |
1484 | **/ |
1485 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
1486 | { |
1487 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN |
1488 | + IPR_SERIAL_NUM_LEN]; |
1489 | |
1490 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
1491 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, |
1492 | IPR_PROD_ID_LEN); |
1493 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; |
1494 | ipr_err("Vendor/Product ID: %s\n" , buffer); |
1495 | |
1496 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
1497 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
1498 | ipr_err(" Serial Number: %s\n" , buffer); |
1499 | } |
1500 | |
1501 | /** |
1502 | * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. |
1503 | * @prefix: string to print at start of printk |
1504 | * @hostrcb: hostrcb pointer |
1505 | * @vpd: vendor/product id/sn/wwn struct |
1506 | * |
1507 | * Return value: |
1508 | * none |
1509 | **/ |
1510 | static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, |
1511 | struct ipr_ext_vpd *vpd) |
1512 | { |
1513 | ipr_log_vpd_compact(prefix, hostrcb, vpd: &vpd->vpd); |
1514 | ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n" , prefix, |
1515 | be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); |
1516 | } |
1517 | |
1518 | /** |
1519 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. |
1520 | * @vpd: vendor/product id/sn/wwn struct |
1521 | * |
1522 | * Return value: |
1523 | * none |
1524 | **/ |
1525 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) |
1526 | { |
1527 | ipr_log_vpd(vpd: &vpd->vpd); |
1528 | ipr_err(" WWN: %08X%08X\n" , be32_to_cpu(vpd->wwid[0]), |
1529 | be32_to_cpu(vpd->wwid[1])); |
1530 | } |
1531 | |
1532 | /** |
1533 | * ipr_log_enhanced_cache_error - Log a cache error. |
1534 | * @ioa_cfg: ioa config struct |
1535 | * @hostrcb: hostrcb struct |
1536 | * |
1537 | * Return value: |
1538 | * none |
1539 | **/ |
1540 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, |
1541 | struct ipr_hostrcb *hostrcb) |
1542 | { |
1543 | struct ipr_hostrcb_type_12_error *error; |
1544 | |
1545 | if (ioa_cfg->sis64) |
1546 | error = &hostrcb->hcam.u.error64.u.type_12_error; |
1547 | else |
1548 | error = &hostrcb->hcam.u.error.u.type_12_error; |
1549 | |
1550 | ipr_err("-----Current Configuration-----\n" ); |
1551 | ipr_err("Cache Directory Card Information:\n" ); |
1552 | ipr_log_ext_vpd(vpd: &error->ioa_vpd); |
1553 | ipr_err("Adapter Card Information:\n" ); |
1554 | ipr_log_ext_vpd(vpd: &error->cfc_vpd); |
1555 | |
1556 | ipr_err("-----Expected Configuration-----\n" ); |
1557 | ipr_err("Cache Directory Card Information:\n" ); |
1558 | ipr_log_ext_vpd(vpd: &error->ioa_last_attached_to_cfc_vpd); |
1559 | ipr_err("Adapter Card Information:\n" ); |
1560 | ipr_log_ext_vpd(vpd: &error->cfc_last_attached_to_ioa_vpd); |
1561 | |
1562 | ipr_err("Additional IOA Data: %08X %08X %08X\n" , |
1563 | be32_to_cpu(error->ioa_data[0]), |
1564 | be32_to_cpu(error->ioa_data[1]), |
1565 | be32_to_cpu(error->ioa_data[2])); |
1566 | } |
1567 | |
1568 | /** |
1569 | * ipr_log_cache_error - Log a cache error. |
1570 | * @ioa_cfg: ioa config struct |
1571 | * @hostrcb: hostrcb struct |
1572 | * |
1573 | * Return value: |
1574 | * none |
1575 | **/ |
1576 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, |
1577 | struct ipr_hostrcb *hostrcb) |
1578 | { |
1579 | struct ipr_hostrcb_type_02_error *error = |
1580 | &hostrcb->hcam.u.error.u.type_02_error; |
1581 | |
1582 | ipr_err("-----Current Configuration-----\n" ); |
1583 | ipr_err("Cache Directory Card Information:\n" ); |
1584 | ipr_log_vpd(vpd: &error->ioa_vpd); |
1585 | ipr_err("Adapter Card Information:\n" ); |
1586 | ipr_log_vpd(vpd: &error->cfc_vpd); |
1587 | |
1588 | ipr_err("-----Expected Configuration-----\n" ); |
1589 | ipr_err("Cache Directory Card Information:\n" ); |
1590 | ipr_log_vpd(vpd: &error->ioa_last_attached_to_cfc_vpd); |
1591 | ipr_err("Adapter Card Information:\n" ); |
1592 | ipr_log_vpd(vpd: &error->cfc_last_attached_to_ioa_vpd); |
1593 | |
1594 | ipr_err("Additional IOA Data: %08X %08X %08X\n" , |
1595 | be32_to_cpu(error->ioa_data[0]), |
1596 | be32_to_cpu(error->ioa_data[1]), |
1597 | be32_to_cpu(error->ioa_data[2])); |
1598 | } |
1599 | |
1600 | /** |
1601 | * ipr_log_enhanced_config_error - Log a configuration error. |
1602 | * @ioa_cfg: ioa config struct |
1603 | * @hostrcb: hostrcb struct |
1604 | * |
1605 | * Return value: |
1606 | * none |
1607 | **/ |
1608 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, |
1609 | struct ipr_hostrcb *hostrcb) |
1610 | { |
1611 | int errors_logged, i; |
1612 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; |
1613 | struct ipr_hostrcb_type_13_error *error; |
1614 | |
1615 | error = &hostrcb->hcam.u.error.u.type_13_error; |
1616 | errors_logged = be32_to_cpu(error->errors_logged); |
1617 | |
1618 | ipr_err("Device Errors Detected/Logged: %d/%d\n" , |
1619 | be32_to_cpu(error->errors_detected), errors_logged); |
1620 | |
1621 | dev_entry = error->dev; |
1622 | |
1623 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
1624 | ipr_err_separator; |
1625 | |
1626 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d" , i + 1); |
1627 | ipr_log_ext_vpd(vpd: &dev_entry->vpd); |
1628 | |
1629 | ipr_err("-----New Device Information-----\n" ); |
1630 | ipr_log_ext_vpd(vpd: &dev_entry->new_vpd); |
1631 | |
1632 | ipr_err("Cache Directory Card Information:\n" ); |
1633 | ipr_log_ext_vpd(vpd: &dev_entry->ioa_last_with_dev_vpd); |
1634 | |
1635 | ipr_err("Adapter Card Information:\n" ); |
1636 | ipr_log_ext_vpd(vpd: &dev_entry->cfc_last_with_dev_vpd); |
1637 | } |
1638 | } |
1639 | |
1640 | /** |
1641 | * ipr_log_sis64_config_error - Log a device error. |
1642 | * @ioa_cfg: ioa config struct |
1643 | * @hostrcb: hostrcb struct |
1644 | * |
1645 | * Return value: |
1646 | * none |
1647 | **/ |
1648 | static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, |
1649 | struct ipr_hostrcb *hostrcb) |
1650 | { |
1651 | int errors_logged, i; |
1652 | struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; |
1653 | struct ipr_hostrcb_type_23_error *error; |
1654 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
1655 | |
1656 | error = &hostrcb->hcam.u.error64.u.type_23_error; |
1657 | errors_logged = be32_to_cpu(error->errors_logged); |
1658 | |
1659 | ipr_err("Device Errors Detected/Logged: %d/%d\n" , |
1660 | be32_to_cpu(error->errors_detected), errors_logged); |
1661 | |
1662 | dev_entry = error->dev; |
1663 | |
1664 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
1665 | ipr_err_separator; |
1666 | |
1667 | ipr_err("Device %d : %s" , i + 1, |
1668 | __ipr_format_res_path(dev_entry->res_path, |
1669 | buffer, sizeof(buffer))); |
1670 | ipr_log_ext_vpd(vpd: &dev_entry->vpd); |
1671 | |
1672 | ipr_err("-----New Device Information-----\n" ); |
1673 | ipr_log_ext_vpd(vpd: &dev_entry->new_vpd); |
1674 | |
1675 | ipr_err("Cache Directory Card Information:\n" ); |
1676 | ipr_log_ext_vpd(vpd: &dev_entry->ioa_last_with_dev_vpd); |
1677 | |
1678 | ipr_err("Adapter Card Information:\n" ); |
1679 | ipr_log_ext_vpd(vpd: &dev_entry->cfc_last_with_dev_vpd); |
1680 | } |
1681 | } |
1682 | |
1683 | /** |
1684 | * ipr_log_config_error - Log a configuration error. |
1685 | * @ioa_cfg: ioa config struct |
1686 | * @hostrcb: hostrcb struct |
1687 | * |
1688 | * Return value: |
1689 | * none |
1690 | **/ |
1691 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, |
1692 | struct ipr_hostrcb *hostrcb) |
1693 | { |
1694 | int errors_logged, i; |
1695 | struct ipr_hostrcb_device_data_entry *dev_entry; |
1696 | struct ipr_hostrcb_type_03_error *error; |
1697 | |
1698 | error = &hostrcb->hcam.u.error.u.type_03_error; |
1699 | errors_logged = be32_to_cpu(error->errors_logged); |
1700 | |
1701 | ipr_err("Device Errors Detected/Logged: %d/%d\n" , |
1702 | be32_to_cpu(error->errors_detected), errors_logged); |
1703 | |
1704 | dev_entry = error->dev; |
1705 | |
1706 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
1707 | ipr_err_separator; |
1708 | |
1709 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d" , i + 1); |
1710 | ipr_log_vpd(vpd: &dev_entry->vpd); |
1711 | |
1712 | ipr_err("-----New Device Information-----\n" ); |
1713 | ipr_log_vpd(vpd: &dev_entry->new_vpd); |
1714 | |
1715 | ipr_err("Cache Directory Card Information:\n" ); |
1716 | ipr_log_vpd(vpd: &dev_entry->ioa_last_with_dev_vpd); |
1717 | |
1718 | ipr_err("Adapter Card Information:\n" ); |
1719 | ipr_log_vpd(vpd: &dev_entry->cfc_last_with_dev_vpd); |
1720 | |
1721 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n" , |
1722 | be32_to_cpu(dev_entry->ioa_data[0]), |
1723 | be32_to_cpu(dev_entry->ioa_data[1]), |
1724 | be32_to_cpu(dev_entry->ioa_data[2]), |
1725 | be32_to_cpu(dev_entry->ioa_data[3]), |
1726 | be32_to_cpu(dev_entry->ioa_data[4])); |
1727 | } |
1728 | } |
1729 | |
1730 | /** |
1731 | * ipr_log_enhanced_array_error - Log an array configuration error. |
1732 | * @ioa_cfg: ioa config struct |
1733 | * @hostrcb: hostrcb struct |
1734 | * |
1735 | * Return value: |
1736 | * none |
1737 | **/ |
1738 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, |
1739 | struct ipr_hostrcb *hostrcb) |
1740 | { |
1741 | int i, num_entries; |
1742 | struct ipr_hostrcb_type_14_error *error; |
1743 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; |
1744 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
1745 | |
1746 | error = &hostrcb->hcam.u.error.u.type_14_error; |
1747 | |
1748 | ipr_err_separator; |
1749 | |
1750 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n" , |
1751 | error->protection_level, |
1752 | ioa_cfg->host->host_no, |
1753 | error->last_func_vset_res_addr.bus, |
1754 | error->last_func_vset_res_addr.target, |
1755 | error->last_func_vset_res_addr.lun); |
1756 | |
1757 | ipr_err_separator; |
1758 | |
1759 | array_entry = error->array_member; |
1760 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), |
1761 | ARRAY_SIZE(error->array_member)); |
1762 | |
1763 | for (i = 0; i < num_entries; i++, array_entry++) { |
1764 | if (!memcmp(p: array_entry->vpd.vpd.sn, q: zero_sn, IPR_SERIAL_NUM_LEN)) |
1765 | continue; |
1766 | |
1767 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1768 | ipr_err("Exposed Array Member %d:\n" , i); |
1769 | else |
1770 | ipr_err("Array Member %d:\n" , i); |
1771 | |
1772 | ipr_log_ext_vpd(vpd: &array_entry->vpd); |
1773 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location" ); |
1774 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, |
1775 | "Expected Location" ); |
1776 | |
1777 | ipr_err_separator; |
1778 | } |
1779 | } |
1780 | |
1781 | /** |
1782 | * ipr_log_array_error - Log an array configuration error. |
1783 | * @ioa_cfg: ioa config struct |
1784 | * @hostrcb: hostrcb struct |
1785 | * |
1786 | * Return value: |
1787 | * none |
1788 | **/ |
1789 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, |
1790 | struct ipr_hostrcb *hostrcb) |
1791 | { |
1792 | int i; |
1793 | struct ipr_hostrcb_type_04_error *error; |
1794 | struct ipr_hostrcb_array_data_entry *array_entry; |
1795 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
1796 | |
1797 | error = &hostrcb->hcam.u.error.u.type_04_error; |
1798 | |
1799 | ipr_err_separator; |
1800 | |
1801 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n" , |
1802 | error->protection_level, |
1803 | ioa_cfg->host->host_no, |
1804 | error->last_func_vset_res_addr.bus, |
1805 | error->last_func_vset_res_addr.target, |
1806 | error->last_func_vset_res_addr.lun); |
1807 | |
1808 | ipr_err_separator; |
1809 | |
1810 | array_entry = error->array_member; |
1811 | |
1812 | for (i = 0; i < 18; i++) { |
1813 | if (!memcmp(p: array_entry->vpd.sn, q: zero_sn, IPR_SERIAL_NUM_LEN)) |
1814 | continue; |
1815 | |
1816 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1817 | ipr_err("Exposed Array Member %d:\n" , i); |
1818 | else |
1819 | ipr_err("Array Member %d:\n" , i); |
1820 | |
1821 | ipr_log_vpd(vpd: &array_entry->vpd); |
1822 | |
1823 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location" ); |
1824 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, |
1825 | "Expected Location" ); |
1826 | |
1827 | ipr_err_separator; |
1828 | |
1829 | if (i == 9) |
1830 | array_entry = error->array_member2; |
1831 | else |
1832 | array_entry++; |
1833 | } |
1834 | } |
1835 | |
1836 | /** |
1837 | * ipr_log_hex_data - Log additional hex IOA error data. |
1838 | * @ioa_cfg: ioa config struct |
1839 | * @data: IOA error data |
1840 | * @len: data length |
1841 | * |
1842 | * Return value: |
1843 | * none |
1844 | **/ |
1845 | static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len) |
1846 | { |
1847 | int i; |
1848 | |
1849 | if (len == 0) |
1850 | return; |
1851 | |
1852 | if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) |
1853 | len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); |
1854 | |
1855 | for (i = 0; i < len / 4; i += 4) { |
1856 | ipr_err("%08X: %08X %08X %08X %08X\n" , i*4, |
1857 | be32_to_cpu(data[i]), |
1858 | be32_to_cpu(data[i+1]), |
1859 | be32_to_cpu(data[i+2]), |
1860 | be32_to_cpu(data[i+3])); |
1861 | } |
1862 | } |
1863 | |
1864 | /** |
1865 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. |
1866 | * @ioa_cfg: ioa config struct |
1867 | * @hostrcb: hostrcb struct |
1868 | * |
1869 | * Return value: |
1870 | * none |
1871 | **/ |
1872 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, |
1873 | struct ipr_hostrcb *hostrcb) |
1874 | { |
1875 | struct ipr_hostrcb_type_17_error *error; |
1876 | |
1877 | if (ioa_cfg->sis64) |
1878 | error = &hostrcb->hcam.u.error64.u.type_17_error; |
1879 | else |
1880 | error = &hostrcb->hcam.u.error.u.type_17_error; |
1881 | |
1882 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
1883 | strim(error->failure_reason); |
1884 | |
1885 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n" , error->failure_reason, |
1886 | be32_to_cpu(hostrcb->hcam.u.error.prc)); |
1887 | ipr_log_ext_vpd_compact(prefix: "Remote IOA" , hostrcb, vpd: &error->vpd); |
1888 | ipr_log_hex_data(ioa_cfg, data: error->data, |
1889 | be32_to_cpu(hostrcb->hcam.length) - |
1890 | (offsetof(struct ipr_hostrcb_error, u) + |
1891 | offsetof(struct ipr_hostrcb_type_17_error, data))); |
1892 | } |
1893 | |
1894 | /** |
1895 | * ipr_log_dual_ioa_error - Log a dual adapter error. |
1896 | * @ioa_cfg: ioa config struct |
1897 | * @hostrcb: hostrcb struct |
1898 | * |
1899 | * Return value: |
1900 | * none |
1901 | **/ |
1902 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, |
1903 | struct ipr_hostrcb *hostrcb) |
1904 | { |
1905 | struct ipr_hostrcb_type_07_error *error; |
1906 | |
1907 | error = &hostrcb->hcam.u.error.u.type_07_error; |
1908 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
1909 | strim(error->failure_reason); |
1910 | |
1911 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n" , error->failure_reason, |
1912 | be32_to_cpu(hostrcb->hcam.u.error.prc)); |
1913 | ipr_log_vpd_compact(prefix: "Remote IOA" , hostrcb, vpd: &error->vpd); |
1914 | ipr_log_hex_data(ioa_cfg, data: error->data, |
1915 | be32_to_cpu(hostrcb->hcam.length) - |
1916 | (offsetof(struct ipr_hostrcb_error, u) + |
1917 | offsetof(struct ipr_hostrcb_type_07_error, data))); |
1918 | } |
1919 | |
1920 | static const struct { |
1921 | u8 active; |
1922 | char *desc; |
1923 | } path_active_desc[] = { |
1924 | { IPR_PATH_NO_INFO, "Path" }, |
1925 | { IPR_PATH_ACTIVE, "Active path" }, |
1926 | { IPR_PATH_NOT_ACTIVE, "Inactive path" } |
1927 | }; |
1928 | |
1929 | static const struct { |
1930 | u8 state; |
1931 | char *desc; |
1932 | } path_state_desc[] = { |
1933 | { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, |
1934 | { IPR_PATH_HEALTHY, "is healthy" }, |
1935 | { IPR_PATH_DEGRADED, "is degraded" }, |
1936 | { IPR_PATH_FAILED, "is failed" } |
1937 | }; |
1938 | |
1939 | /** |
1940 | * ipr_log_fabric_path - Log a fabric path error |
1941 | * @hostrcb: hostrcb struct |
1942 | * @fabric: fabric descriptor |
1943 | * |
1944 | * Return value: |
1945 | * none |
1946 | **/ |
1947 | static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, |
1948 | struct ipr_hostrcb_fabric_desc *fabric) |
1949 | { |
1950 | int i, j; |
1951 | u8 path_state = fabric->path_state; |
1952 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; |
1953 | u8 state = path_state & IPR_PATH_STATE_MASK; |
1954 | |
1955 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { |
1956 | if (path_active_desc[i].active != active) |
1957 | continue; |
1958 | |
1959 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { |
1960 | if (path_state_desc[j].state != state) |
1961 | continue; |
1962 | |
1963 | if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { |
1964 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n" , |
1965 | path_active_desc[i].desc, path_state_desc[j].desc, |
1966 | fabric->ioa_port); |
1967 | } else if (fabric->cascaded_expander == 0xff) { |
1968 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n" , |
1969 | path_active_desc[i].desc, path_state_desc[j].desc, |
1970 | fabric->ioa_port, fabric->phy); |
1971 | } else if (fabric->phy == 0xff) { |
1972 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n" , |
1973 | path_active_desc[i].desc, path_state_desc[j].desc, |
1974 | fabric->ioa_port, fabric->cascaded_expander); |
1975 | } else { |
1976 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n" , |
1977 | path_active_desc[i].desc, path_state_desc[j].desc, |
1978 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); |
1979 | } |
1980 | return; |
1981 | } |
1982 | } |
1983 | |
1984 | ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n" , path_state, |
1985 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); |
1986 | } |
1987 | |
1988 | /** |
1989 | * ipr_log64_fabric_path - Log a fabric path error |
1990 | * @hostrcb: hostrcb struct |
1991 | * @fabric: fabric descriptor |
1992 | * |
1993 | * Return value: |
1994 | * none |
1995 | **/ |
1996 | static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, |
1997 | struct ipr_hostrcb64_fabric_desc *fabric) |
1998 | { |
1999 | int i, j; |
2000 | u8 path_state = fabric->path_state; |
2001 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; |
2002 | u8 state = path_state & IPR_PATH_STATE_MASK; |
2003 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
2004 | |
2005 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { |
2006 | if (path_active_desc[i].active != active) |
2007 | continue; |
2008 | |
2009 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { |
2010 | if (path_state_desc[j].state != state) |
2011 | continue; |
2012 | |
2013 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n" , |
2014 | path_active_desc[i].desc, path_state_desc[j].desc, |
2015 | ipr_format_res_path(hostrcb->ioa_cfg, |
2016 | fabric->res_path, |
2017 | buffer, sizeof(buffer))); |
2018 | return; |
2019 | } |
2020 | } |
2021 | |
2022 | ipr_err("Path state=%02X Resource Path=%s\n" , path_state, |
2023 | ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path, |
2024 | buffer, sizeof(buffer))); |
2025 | } |
2026 | |
2027 | static const struct { |
2028 | u8 type; |
2029 | char *desc; |
2030 | } path_type_desc[] = { |
2031 | { IPR_PATH_CFG_IOA_PORT, "IOA port" }, |
2032 | { IPR_PATH_CFG_EXP_PORT, "Expander port" }, |
2033 | { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, |
2034 | { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } |
2035 | }; |
2036 | |
2037 | static const struct { |
2038 | u8 status; |
2039 | char *desc; |
2040 | } path_status_desc[] = { |
2041 | { IPR_PATH_CFG_NO_PROB, "Functional" }, |
2042 | { IPR_PATH_CFG_DEGRADED, "Degraded" }, |
2043 | { IPR_PATH_CFG_FAILED, "Failed" }, |
2044 | { IPR_PATH_CFG_SUSPECT, "Suspect" }, |
2045 | { IPR_PATH_NOT_DETECTED, "Missing" }, |
2046 | { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } |
2047 | }; |
2048 | |
2049 | static const char *link_rate[] = { |
2050 | "unknown" , |
2051 | "disabled" , |
2052 | "phy reset problem" , |
2053 | "spinup hold" , |
2054 | "port selector" , |
2055 | "unknown" , |
2056 | "unknown" , |
2057 | "unknown" , |
2058 | "1.5Gbps" , |
2059 | "3.0Gbps" , |
2060 | "unknown" , |
2061 | "unknown" , |
2062 | "unknown" , |
2063 | "unknown" , |
2064 | "unknown" , |
2065 | "unknown" |
2066 | }; |
2067 | |
2068 | /** |
2069 | * ipr_log_path_elem - Log a fabric path element. |
2070 | * @hostrcb: hostrcb struct |
2071 | * @cfg: fabric path element struct |
2072 | * |
2073 | * Return value: |
2074 | * none |
2075 | **/ |
2076 | static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, |
2077 | struct ipr_hostrcb_config_element *cfg) |
2078 | { |
2079 | int i, j; |
2080 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; |
2081 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; |
2082 | |
2083 | if (type == IPR_PATH_CFG_NOT_EXIST) |
2084 | return; |
2085 | |
2086 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { |
2087 | if (path_type_desc[i].type != type) |
2088 | continue; |
2089 | |
2090 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { |
2091 | if (path_status_desc[j].status != status) |
2092 | continue; |
2093 | |
2094 | if (type == IPR_PATH_CFG_IOA_PORT) { |
2095 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n" , |
2096 | path_status_desc[j].desc, path_type_desc[i].desc, |
2097 | cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2098 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2099 | } else { |
2100 | if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { |
2101 | ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n" , |
2102 | path_status_desc[j].desc, path_type_desc[i].desc, |
2103 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2104 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2105 | } else if (cfg->cascaded_expander == 0xff) { |
2106 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " |
2107 | "WWN=%08X%08X\n" , path_status_desc[j].desc, |
2108 | path_type_desc[i].desc, cfg->phy, |
2109 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2110 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2111 | } else if (cfg->phy == 0xff) { |
2112 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " |
2113 | "WWN=%08X%08X\n" , path_status_desc[j].desc, |
2114 | path_type_desc[i].desc, cfg->cascaded_expander, |
2115 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2116 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2117 | } else { |
2118 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " |
2119 | "WWN=%08X%08X\n" , path_status_desc[j].desc, |
2120 | path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, |
2121 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2122 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2123 | } |
2124 | } |
2125 | return; |
2126 | } |
2127 | } |
2128 | |
2129 | ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " |
2130 | "WWN=%08X%08X\n" , cfg->type_status, cfg->cascaded_expander, cfg->phy, |
2131 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2132 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2133 | } |
2134 | |
2135 | /** |
2136 | * ipr_log64_path_elem - Log a fabric path element. |
2137 | * @hostrcb: hostrcb struct |
2138 | * @cfg: fabric path element struct |
2139 | * |
2140 | * Return value: |
2141 | * none |
2142 | **/ |
2143 | static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, |
2144 | struct ipr_hostrcb64_config_element *cfg) |
2145 | { |
2146 | int i, j; |
2147 | u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; |
2148 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; |
2149 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; |
2150 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
2151 | |
2152 | if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) |
2153 | return; |
2154 | |
2155 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { |
2156 | if (path_type_desc[i].type != type) |
2157 | continue; |
2158 | |
2159 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { |
2160 | if (path_status_desc[j].status != status) |
2161 | continue; |
2162 | |
2163 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n" , |
2164 | path_status_desc[j].desc, path_type_desc[i].desc, |
2165 | ipr_format_res_path(hostrcb->ioa_cfg, |
2166 | cfg->res_path, buffer, sizeof(buffer)), |
2167 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2168 | be32_to_cpu(cfg->wwid[0]), |
2169 | be32_to_cpu(cfg->wwid[1])); |
2170 | return; |
2171 | } |
2172 | } |
2173 | ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " |
2174 | "WWN=%08X%08X\n" , cfg->type_status, |
2175 | ipr_format_res_path(hostrcb->ioa_cfg, |
2176 | cfg->res_path, buffer, sizeof(buffer)), |
2177 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2178 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2179 | } |
2180 | |
2181 | /** |
2182 | * ipr_log_fabric_error - Log a fabric error. |
2183 | * @ioa_cfg: ioa config struct |
2184 | * @hostrcb: hostrcb struct |
2185 | * |
2186 | * Return value: |
2187 | * none |
2188 | **/ |
2189 | static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, |
2190 | struct ipr_hostrcb *hostrcb) |
2191 | { |
2192 | struct ipr_hostrcb_type_20_error *error; |
2193 | struct ipr_hostrcb_fabric_desc *fabric; |
2194 | struct ipr_hostrcb_config_element *cfg; |
2195 | int i, add_len; |
2196 | |
2197 | error = &hostrcb->hcam.u.error.u.type_20_error; |
2198 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
2199 | ipr_hcam_err(hostrcb, "%s\n" , error->failure_reason); |
2200 | |
2201 | add_len = be32_to_cpu(hostrcb->hcam.length) - |
2202 | (offsetof(struct ipr_hostrcb_error, u) + |
2203 | offsetof(struct ipr_hostrcb_type_20_error, desc)); |
2204 | |
2205 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { |
2206 | ipr_log_fabric_path(hostrcb, fabric); |
2207 | for_each_fabric_cfg(fabric, cfg) |
2208 | ipr_log_path_elem(hostrcb, cfg); |
2209 | |
2210 | add_len -= be16_to_cpu(fabric->length); |
2211 | fabric = (struct ipr_hostrcb_fabric_desc *) |
2212 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); |
2213 | } |
2214 | |
2215 | ipr_log_hex_data(ioa_cfg, data: (__be32 *)fabric, len: add_len); |
2216 | } |
2217 | |
2218 | /** |
2219 | * ipr_log_sis64_array_error - Log a sis64 array error. |
2220 | * @ioa_cfg: ioa config struct |
2221 | * @hostrcb: hostrcb struct |
2222 | * |
2223 | * Return value: |
2224 | * none |
2225 | **/ |
2226 | static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, |
2227 | struct ipr_hostrcb *hostrcb) |
2228 | { |
2229 | int i, num_entries; |
2230 | struct ipr_hostrcb_type_24_error *error; |
2231 | struct ipr_hostrcb64_array_data_entry *array_entry; |
2232 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
2233 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
2234 | |
2235 | error = &hostrcb->hcam.u.error64.u.type_24_error; |
2236 | |
2237 | ipr_err_separator; |
2238 | |
2239 | ipr_err("RAID %s Array Configuration: %s\n" , |
2240 | error->protection_level, |
2241 | ipr_format_res_path(ioa_cfg, error->last_res_path, |
2242 | buffer, sizeof(buffer))); |
2243 | |
2244 | ipr_err_separator; |
2245 | |
2246 | array_entry = error->array_member; |
2247 | num_entries = min_t(u32, error->num_entries, |
2248 | ARRAY_SIZE(error->array_member)); |
2249 | |
2250 | for (i = 0; i < num_entries; i++, array_entry++) { |
2251 | |
2252 | if (!memcmp(p: array_entry->vpd.vpd.sn, q: zero_sn, IPR_SERIAL_NUM_LEN)) |
2253 | continue; |
2254 | |
2255 | if (error->exposed_mode_adn == i) |
2256 | ipr_err("Exposed Array Member %d:\n" , i); |
2257 | else |
2258 | ipr_err("Array Member %d:\n" , i); |
2259 | |
2260 | ipr_err("Array Member %d:\n" , i); |
2261 | ipr_log_ext_vpd(vpd: &array_entry->vpd); |
2262 | ipr_err("Current Location: %s\n" , |
2263 | ipr_format_res_path(ioa_cfg, array_entry->res_path, |
2264 | buffer, sizeof(buffer))); |
2265 | ipr_err("Expected Location: %s\n" , |
2266 | ipr_format_res_path(ioa_cfg, |
2267 | array_entry->expected_res_path, |
2268 | buffer, sizeof(buffer))); |
2269 | |
2270 | ipr_err_separator; |
2271 | } |
2272 | } |
2273 | |
2274 | /** |
2275 | * ipr_log_sis64_fabric_error - Log a sis64 fabric error. |
2276 | * @ioa_cfg: ioa config struct |
2277 | * @hostrcb: hostrcb struct |
2278 | * |
2279 | * Return value: |
2280 | * none |
2281 | **/ |
2282 | static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, |
2283 | struct ipr_hostrcb *hostrcb) |
2284 | { |
2285 | struct ipr_hostrcb_type_30_error *error; |
2286 | struct ipr_hostrcb64_fabric_desc *fabric; |
2287 | struct ipr_hostrcb64_config_element *cfg; |
2288 | int i, add_len; |
2289 | |
2290 | error = &hostrcb->hcam.u.error64.u.type_30_error; |
2291 | |
2292 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
2293 | ipr_hcam_err(hostrcb, "%s\n" , error->failure_reason); |
2294 | |
2295 | add_len = be32_to_cpu(hostrcb->hcam.length) - |
2296 | (offsetof(struct ipr_hostrcb64_error, u) + |
2297 | offsetof(struct ipr_hostrcb_type_30_error, desc)); |
2298 | |
2299 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { |
2300 | ipr_log64_fabric_path(hostrcb, fabric); |
2301 | for_each_fabric_cfg(fabric, cfg) |
2302 | ipr_log64_path_elem(hostrcb, cfg); |
2303 | |
2304 | add_len -= be16_to_cpu(fabric->length); |
2305 | fabric = (struct ipr_hostrcb64_fabric_desc *) |
2306 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); |
2307 | } |
2308 | |
2309 | ipr_log_hex_data(ioa_cfg, data: (__be32 *)fabric, len: add_len); |
2310 | } |
2311 | |
2312 | /** |
2313 | * ipr_log_sis64_service_required_error - Log a sis64 service required error. |
2314 | * @ioa_cfg: ioa config struct |
2315 | * @hostrcb: hostrcb struct |
2316 | * |
2317 | * Return value: |
2318 | * none |
2319 | **/ |
2320 | static void ipr_log_sis64_service_required_error(struct ipr_ioa_cfg *ioa_cfg, |
2321 | struct ipr_hostrcb *hostrcb) |
2322 | { |
2323 | struct ipr_hostrcb_type_41_error *error; |
2324 | |
2325 | error = &hostrcb->hcam.u.error64.u.type_41_error; |
2326 | |
2327 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
2328 | ipr_err("Primary Failure Reason: %s\n" , error->failure_reason); |
2329 | ipr_log_hex_data(ioa_cfg, data: error->data, |
2330 | be32_to_cpu(hostrcb->hcam.length) - |
2331 | (offsetof(struct ipr_hostrcb_error, u) + |
2332 | offsetof(struct ipr_hostrcb_type_41_error, data))); |
2333 | } |
2334 | /** |
2335 | * ipr_log_generic_error - Log an adapter error. |
2336 | * @ioa_cfg: ioa config struct |
2337 | * @hostrcb: hostrcb struct |
2338 | * |
2339 | * Return value: |
2340 | * none |
2341 | **/ |
2342 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, |
2343 | struct ipr_hostrcb *hostrcb) |
2344 | { |
2345 | ipr_log_hex_data(ioa_cfg, data: hostrcb->hcam.u.raw.data, |
2346 | be32_to_cpu(hostrcb->hcam.length)); |
2347 | } |
2348 | |
2349 | /** |
2350 | * ipr_log_sis64_device_error - Log a cache error. |
2351 | * @ioa_cfg: ioa config struct |
2352 | * @hostrcb: hostrcb struct |
2353 | * |
2354 | * Return value: |
2355 | * none |
2356 | **/ |
2357 | static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg, |
2358 | struct ipr_hostrcb *hostrcb) |
2359 | { |
2360 | struct ipr_hostrcb_type_21_error *error; |
2361 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
2362 | |
2363 | error = &hostrcb->hcam.u.error64.u.type_21_error; |
2364 | |
2365 | ipr_err("-----Failing Device Information-----\n" ); |
2366 | ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n" , |
2367 | be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]), |
2368 | be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3])); |
2369 | ipr_err("Device Resource Path: %s\n" , |
2370 | __ipr_format_res_path(error->res_path, |
2371 | buffer, sizeof(buffer))); |
2372 | error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0'; |
2373 | error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0'; |
2374 | ipr_err("Primary Problem Description: %s\n" , error->primary_problem_desc); |
2375 | ipr_err("Secondary Problem Description: %s\n" , error->second_problem_desc); |
2376 | ipr_err("SCSI Sense Data:\n" ); |
2377 | ipr_log_hex_data(ioa_cfg, data: error->sense_data, len: sizeof(error->sense_data)); |
2378 | ipr_err("SCSI Command Descriptor Block: \n" ); |
2379 | ipr_log_hex_data(ioa_cfg, data: error->cdb, len: sizeof(error->cdb)); |
2380 | |
2381 | ipr_err("Additional IOA Data:\n" ); |
2382 | ipr_log_hex_data(ioa_cfg, data: error->ioa_data, be32_to_cpu(error->length_of_error)); |
2383 | } |
2384 | |
2385 | /** |
2386 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. |
2387 | * @ioasc: IOASC |
2388 | * |
2389 | * This function will return the index of into the ipr_error_table |
2390 | * for the specified IOASC. If the IOASC is not in the table, |
2391 | * 0 will be returned, which points to the entry used for unknown errors. |
2392 | * |
2393 | * Return value: |
2394 | * index into the ipr_error_table |
2395 | **/ |
2396 | static u32 ipr_get_error(u32 ioasc) |
2397 | { |
2398 | int i; |
2399 | |
2400 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) |
2401 | if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) |
2402 | return i; |
2403 | |
2404 | return 0; |
2405 | } |
2406 | |
2407 | /** |
2408 | * ipr_handle_log_data - Log an adapter error. |
2409 | * @ioa_cfg: ioa config struct |
2410 | * @hostrcb: hostrcb struct |
2411 | * |
2412 | * This function logs an adapter error to the system. |
2413 | * |
2414 | * Return value: |
2415 | * none |
2416 | **/ |
2417 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, |
2418 | struct ipr_hostrcb *hostrcb) |
2419 | { |
2420 | u32 ioasc; |
2421 | int error_index; |
2422 | struct ipr_hostrcb_type_21_error *error; |
2423 | |
2424 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) |
2425 | return; |
2426 | |
2427 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) |
2428 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n" ); |
2429 | |
2430 | if (ioa_cfg->sis64) |
2431 | ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); |
2432 | else |
2433 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
2434 | |
2435 | if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || |
2436 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { |
2437 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ |
2438 | scsi_report_bus_reset(ioa_cfg->host, |
2439 | hostrcb->hcam.u.error.fd_res_addr.bus); |
2440 | } |
2441 | |
2442 | error_index = ipr_get_error(ioasc); |
2443 | |
2444 | if (!ipr_error_table[error_index].log_hcam) |
2445 | return; |
2446 | |
2447 | if (ioasc == IPR_IOASC_HW_CMD_FAILED && |
2448 | hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) { |
2449 | error = &hostrcb->hcam.u.error64.u.type_21_error; |
2450 | |
2451 | if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST && |
2452 | ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) |
2453 | return; |
2454 | } |
2455 | |
2456 | ipr_hcam_err(hostrcb, "%s\n" , ipr_error_table[error_index].error); |
2457 | |
2458 | /* Set indication we have logged an error */ |
2459 | ioa_cfg->errors_logged++; |
2460 | |
2461 | if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) |
2462 | return; |
2463 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
2464 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); |
2465 | |
2466 | switch (hostrcb->hcam.overlay_id) { |
2467 | case IPR_HOST_RCB_OVERLAY_ID_2: |
2468 | ipr_log_cache_error(ioa_cfg, hostrcb); |
2469 | break; |
2470 | case IPR_HOST_RCB_OVERLAY_ID_3: |
2471 | ipr_log_config_error(ioa_cfg, hostrcb); |
2472 | break; |
2473 | case IPR_HOST_RCB_OVERLAY_ID_4: |
2474 | case IPR_HOST_RCB_OVERLAY_ID_6: |
2475 | ipr_log_array_error(ioa_cfg, hostrcb); |
2476 | break; |
2477 | case IPR_HOST_RCB_OVERLAY_ID_7: |
2478 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); |
2479 | break; |
2480 | case IPR_HOST_RCB_OVERLAY_ID_12: |
2481 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); |
2482 | break; |
2483 | case IPR_HOST_RCB_OVERLAY_ID_13: |
2484 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); |
2485 | break; |
2486 | case IPR_HOST_RCB_OVERLAY_ID_14: |
2487 | case IPR_HOST_RCB_OVERLAY_ID_16: |
2488 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); |
2489 | break; |
2490 | case IPR_HOST_RCB_OVERLAY_ID_17: |
2491 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); |
2492 | break; |
2493 | case IPR_HOST_RCB_OVERLAY_ID_20: |
2494 | ipr_log_fabric_error(ioa_cfg, hostrcb); |
2495 | break; |
2496 | case IPR_HOST_RCB_OVERLAY_ID_21: |
2497 | ipr_log_sis64_device_error(ioa_cfg, hostrcb); |
2498 | break; |
2499 | case IPR_HOST_RCB_OVERLAY_ID_23: |
2500 | ipr_log_sis64_config_error(ioa_cfg, hostrcb); |
2501 | break; |
2502 | case IPR_HOST_RCB_OVERLAY_ID_24: |
2503 | case IPR_HOST_RCB_OVERLAY_ID_26: |
2504 | ipr_log_sis64_array_error(ioa_cfg, hostrcb); |
2505 | break; |
2506 | case IPR_HOST_RCB_OVERLAY_ID_30: |
2507 | ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); |
2508 | break; |
2509 | case IPR_HOST_RCB_OVERLAY_ID_41: |
2510 | ipr_log_sis64_service_required_error(ioa_cfg, hostrcb); |
2511 | break; |
2512 | case IPR_HOST_RCB_OVERLAY_ID_1: |
2513 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
2514 | default: |
2515 | ipr_log_generic_error(ioa_cfg, hostrcb); |
2516 | break; |
2517 | } |
2518 | } |
2519 | |
2520 | static struct ipr_hostrcb *ipr_get_free_hostrcb(struct ipr_ioa_cfg *ioa) |
2521 | { |
2522 | struct ipr_hostrcb *hostrcb; |
2523 | |
2524 | hostrcb = list_first_entry_or_null(&ioa->hostrcb_free_q, |
2525 | struct ipr_hostrcb, queue); |
2526 | |
2527 | if (unlikely(!hostrcb)) { |
2528 | dev_info(&ioa->pdev->dev, "Reclaiming async error buffers." ); |
2529 | hostrcb = list_first_entry_or_null(&ioa->hostrcb_report_q, |
2530 | struct ipr_hostrcb, queue); |
2531 | } |
2532 | |
2533 | list_del_init(entry: &hostrcb->queue); |
2534 | return hostrcb; |
2535 | } |
2536 | |
2537 | /** |
2538 | * ipr_process_error - Op done function for an adapter error log. |
2539 | * @ipr_cmd: ipr command struct |
2540 | * |
2541 | * This function is the op done function for an error log host |
2542 | * controlled async from the adapter. It will log the error and |
2543 | * send the HCAM back to the adapter. |
2544 | * |
2545 | * Return value: |
2546 | * none |
2547 | **/ |
2548 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) |
2549 | { |
2550 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
2551 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; |
2552 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
2553 | u32 fd_ioasc; |
2554 | |
2555 | if (ioa_cfg->sis64) |
2556 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); |
2557 | else |
2558 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
2559 | |
2560 | list_del_init(entry: &hostrcb->queue); |
2561 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
2562 | |
2563 | if (!ioasc) { |
2564 | ipr_handle_log_data(ioa_cfg, hostrcb); |
2565 | if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) |
2566 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); |
2567 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET && |
2568 | ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) { |
2569 | dev_err(&ioa_cfg->pdev->dev, |
2570 | "Host RCB failed with IOASC: 0x%08X\n" , ioasc); |
2571 | } |
2572 | |
2573 | list_add_tail(new: &hostrcb->queue, head: &ioa_cfg->hostrcb_report_q); |
2574 | schedule_work(work: &ioa_cfg->work_q); |
2575 | hostrcb = ipr_get_free_hostrcb(ioa: ioa_cfg); |
2576 | |
2577 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); |
2578 | } |
2579 | |
2580 | /** |
2581 | * ipr_timeout - An internally generated op has timed out. |
2582 | * @t: Timer context used to fetch ipr command struct |
2583 | * |
2584 | * This function blocks host requests and initiates an |
2585 | * adapter reset. |
2586 | * |
2587 | * Return value: |
2588 | * none |
2589 | **/ |
2590 | static void ipr_timeout(struct timer_list *t) |
2591 | { |
2592 | struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); |
2593 | unsigned long lock_flags = 0; |
2594 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
2595 | |
2596 | ENTER; |
2597 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
2598 | |
2599 | ioa_cfg->errors_logged++; |
2600 | dev_err(&ioa_cfg->pdev->dev, |
2601 | "Adapter being reset due to command timeout.\n" ); |
2602 | |
2603 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
2604 | ioa_cfg->sdt_state = GET_DUMP; |
2605 | |
2606 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) |
2607 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
2608 | |
2609 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
2610 | LEAVE; |
2611 | } |
2612 | |
2613 | /** |
2614 | * ipr_oper_timeout - Adapter timed out transitioning to operational |
2615 | * @t: Timer context used to fetch ipr command struct |
2616 | * |
2617 | * This function blocks host requests and initiates an |
2618 | * adapter reset. |
2619 | * |
2620 | * Return value: |
2621 | * none |
2622 | **/ |
2623 | static void ipr_oper_timeout(struct timer_list *t) |
2624 | { |
2625 | struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); |
2626 | unsigned long lock_flags = 0; |
2627 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
2628 | |
2629 | ENTER; |
2630 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
2631 | |
2632 | ioa_cfg->errors_logged++; |
2633 | dev_err(&ioa_cfg->pdev->dev, |
2634 | "Adapter timed out transitioning to operational.\n" ); |
2635 | |
2636 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
2637 | ioa_cfg->sdt_state = GET_DUMP; |
2638 | |
2639 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { |
2640 | if (ipr_fastfail) |
2641 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; |
2642 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
2643 | } |
2644 | |
2645 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
2646 | LEAVE; |
2647 | } |
2648 | |
2649 | /** |
2650 | * ipr_find_ses_entry - Find matching SES in SES table |
2651 | * @res: resource entry struct of SES |
2652 | * |
2653 | * Return value: |
2654 | * pointer to SES table entry / NULL on failure |
2655 | **/ |
2656 | static const struct ipr_ses_table_entry * |
2657 | ipr_find_ses_entry(struct ipr_resource_entry *res) |
2658 | { |
2659 | int i, j, matches; |
2660 | struct ipr_std_inq_vpids *vpids; |
2661 | const struct ipr_ses_table_entry *ste = ipr_ses_table; |
2662 | |
2663 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { |
2664 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { |
2665 | if (ste->compare_product_id_byte[j] == 'X') { |
2666 | vpids = &res->std_inq_data.vpids; |
2667 | if (vpids->product_id[j] == ste->product_id[j]) |
2668 | matches++; |
2669 | else |
2670 | break; |
2671 | } else |
2672 | matches++; |
2673 | } |
2674 | |
2675 | if (matches == IPR_PROD_ID_LEN) |
2676 | return ste; |
2677 | } |
2678 | |
2679 | return NULL; |
2680 | } |
2681 | |
2682 | /** |
2683 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus |
2684 | * @ioa_cfg: ioa config struct |
2685 | * @bus: SCSI bus |
2686 | * @bus_width: bus width |
2687 | * |
2688 | * Return value: |
2689 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz |
2690 | * For a 2-byte wide SCSI bus, the maximum transfer speed is |
2691 | * twice the maximum transfer rate (e.g. for a wide enabled bus, |
2692 | * max 160MHz = max 320MB/sec). |
2693 | **/ |
2694 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) |
2695 | { |
2696 | struct ipr_resource_entry *res; |
2697 | const struct ipr_ses_table_entry *ste; |
2698 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); |
2699 | |
2700 | /* Loop through each config table entry in the config table buffer */ |
2701 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
2702 | if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) |
2703 | continue; |
2704 | |
2705 | if (bus != res->bus) |
2706 | continue; |
2707 | |
2708 | if (!(ste = ipr_find_ses_entry(res))) |
2709 | continue; |
2710 | |
2711 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); |
2712 | } |
2713 | |
2714 | return max_xfer_rate; |
2715 | } |
2716 | |
2717 | /** |
2718 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA |
2719 | * @ioa_cfg: ioa config struct |
2720 | * @max_delay: max delay in micro-seconds to wait |
2721 | * |
2722 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. |
2723 | * |
2724 | * Return value: |
2725 | * 0 on success / other on failure |
2726 | **/ |
2727 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) |
2728 | { |
2729 | volatile u32 pcii_reg; |
2730 | int delay = 1; |
2731 | |
2732 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ |
2733 | while (delay < max_delay) { |
2734 | pcii_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
2735 | |
2736 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) |
2737 | return 0; |
2738 | |
2739 | /* udelay cannot be used if delay is more than a few milliseconds */ |
2740 | if ((delay / 1000) > MAX_UDELAY_MS) |
2741 | mdelay(delay / 1000); |
2742 | else |
2743 | udelay(delay); |
2744 | |
2745 | delay += delay; |
2746 | } |
2747 | return -EIO; |
2748 | } |
2749 | |
2750 | /** |
2751 | * ipr_get_sis64_dump_data_section - Dump IOA memory |
2752 | * @ioa_cfg: ioa config struct |
2753 | * @start_addr: adapter address to dump |
2754 | * @dest: destination kernel buffer |
2755 | * @length_in_words: length to dump in 4 byte words |
2756 | * |
2757 | * Return value: |
2758 | * 0 on success |
2759 | **/ |
2760 | static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, |
2761 | u32 start_addr, |
2762 | __be32 *dest, u32 length_in_words) |
2763 | { |
2764 | int i; |
2765 | |
2766 | for (i = 0; i < length_in_words; i++) { |
2767 | writel(val: start_addr+(i*4), addr: ioa_cfg->regs.dump_addr_reg); |
2768 | *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); |
2769 | dest++; |
2770 | } |
2771 | |
2772 | return 0; |
2773 | } |
2774 | |
2775 | /** |
2776 | * ipr_get_ldump_data_section - Dump IOA memory |
2777 | * @ioa_cfg: ioa config struct |
2778 | * @start_addr: adapter address to dump |
2779 | * @dest: destination kernel buffer |
2780 | * @length_in_words: length to dump in 4 byte words |
2781 | * |
2782 | * Return value: |
2783 | * 0 on success / -EIO on failure |
2784 | **/ |
2785 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, |
2786 | u32 start_addr, |
2787 | __be32 *dest, u32 length_in_words) |
2788 | { |
2789 | volatile u32 temp_pcii_reg; |
2790 | int i, delay = 0; |
2791 | |
2792 | if (ioa_cfg->sis64) |
2793 | return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, |
2794 | dest, length_in_words); |
2795 | |
2796 | /* Write IOA interrupt reg starting LDUMP state */ |
2797 | writel(val: (IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), |
2798 | addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
2799 | |
2800 | /* Wait for IO debug acknowledge */ |
2801 | if (ipr_wait_iodbg_ack(ioa_cfg, |
2802 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { |
2803 | dev_err(&ioa_cfg->pdev->dev, |
2804 | "IOA dump long data transfer timeout\n" ); |
2805 | return -EIO; |
2806 | } |
2807 | |
2808 | /* Signal LDUMP interlocked - clear IO debug ack */ |
2809 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
2810 | addr: ioa_cfg->regs.clr_interrupt_reg); |
2811 | |
2812 | /* Write Mailbox with starting address */ |
2813 | writel(val: start_addr, addr: ioa_cfg->ioa_mailbox); |
2814 | |
2815 | /* Signal address valid - clear IOA Reset alert */ |
2816 | writel(IPR_UPROCI_RESET_ALERT, |
2817 | addr: ioa_cfg->regs.clr_uproc_interrupt_reg32); |
2818 | |
2819 | for (i = 0; i < length_in_words; i++) { |
2820 | /* Wait for IO debug acknowledge */ |
2821 | if (ipr_wait_iodbg_ack(ioa_cfg, |
2822 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { |
2823 | dev_err(&ioa_cfg->pdev->dev, |
2824 | "IOA dump short data transfer timeout\n" ); |
2825 | return -EIO; |
2826 | } |
2827 | |
2828 | /* Read data from mailbox and increment destination pointer */ |
2829 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); |
2830 | dest++; |
2831 | |
2832 | /* For all but the last word of data, signal data received */ |
2833 | if (i < (length_in_words - 1)) { |
2834 | /* Signal dump data received - Clear IO debug Ack */ |
2835 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
2836 | addr: ioa_cfg->regs.clr_interrupt_reg); |
2837 | } |
2838 | } |
2839 | |
2840 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ |
2841 | writel(IPR_UPROCI_RESET_ALERT, |
2842 | addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
2843 | |
2844 | writel(IPR_UPROCI_IO_DEBUG_ALERT, |
2845 | addr: ioa_cfg->regs.clr_uproc_interrupt_reg32); |
2846 | |
2847 | /* Signal dump data received - Clear IO debug Ack */ |
2848 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
2849 | addr: ioa_cfg->regs.clr_interrupt_reg); |
2850 | |
2851 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ |
2852 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { |
2853 | temp_pcii_reg = |
2854 | readl(addr: ioa_cfg->regs.sense_uproc_interrupt_reg32); |
2855 | |
2856 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) |
2857 | return 0; |
2858 | |
2859 | udelay(10); |
2860 | delay += 10; |
2861 | } |
2862 | |
2863 | return 0; |
2864 | } |
2865 | |
2866 | #ifdef CONFIG_SCSI_IPR_DUMP |
2867 | /** |
2868 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer |
2869 | * @ioa_cfg: ioa config struct |
2870 | * @pci_address: adapter address |
2871 | * @length: length of data to copy |
2872 | * |
2873 | * Copy data from PCI adapter to kernel buffer. |
2874 | * Note: length MUST be a 4 byte multiple |
2875 | * Return value: |
2876 | * 0 on success / other on failure |
2877 | **/ |
2878 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, |
2879 | unsigned long pci_address, u32 length) |
2880 | { |
2881 | int bytes_copied = 0; |
2882 | int cur_len, rc, rem_len, rem_page_len, max_dump_size; |
2883 | __be32 *page; |
2884 | unsigned long lock_flags = 0; |
2885 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; |
2886 | |
2887 | if (ioa_cfg->sis64) |
2888 | max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; |
2889 | else |
2890 | max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; |
2891 | |
2892 | while (bytes_copied < length && |
2893 | (ioa_dump->hdr.len + bytes_copied) < max_dump_size) { |
2894 | if (ioa_dump->page_offset >= PAGE_SIZE || |
2895 | ioa_dump->page_offset == 0) { |
2896 | page = (__be32 *)__get_free_page(GFP_ATOMIC); |
2897 | |
2898 | if (!page) { |
2899 | ipr_trace; |
2900 | return bytes_copied; |
2901 | } |
2902 | |
2903 | ioa_dump->page_offset = 0; |
2904 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; |
2905 | ioa_dump->next_page_index++; |
2906 | } else |
2907 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; |
2908 | |
2909 | rem_len = length - bytes_copied; |
2910 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; |
2911 | cur_len = min(rem_len, rem_page_len); |
2912 | |
2913 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
2914 | if (ioa_cfg->sdt_state == ABORT_DUMP) { |
2915 | rc = -EIO; |
2916 | } else { |
2917 | rc = ipr_get_ldump_data_section(ioa_cfg, |
2918 | start_addr: pci_address + bytes_copied, |
2919 | dest: &page[ioa_dump->page_offset / 4], |
2920 | length_in_words: (cur_len / sizeof(u32))); |
2921 | } |
2922 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
2923 | |
2924 | if (!rc) { |
2925 | ioa_dump->page_offset += cur_len; |
2926 | bytes_copied += cur_len; |
2927 | } else { |
2928 | ipr_trace; |
2929 | break; |
2930 | } |
2931 | schedule(); |
2932 | } |
2933 | |
2934 | return bytes_copied; |
2935 | } |
2936 | |
2937 | /** |
2938 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. |
2939 | * @hdr: dump entry header struct |
2940 | * |
2941 | * Return value: |
2942 | * nothing |
2943 | **/ |
2944 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) |
2945 | { |
2946 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; |
2947 | hdr->num_elems = 1; |
2948 | hdr->offset = sizeof(*hdr); |
2949 | hdr->status = IPR_DUMP_STATUS_SUCCESS; |
2950 | } |
2951 | |
2952 | /** |
2953 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. |
2954 | * @ioa_cfg: ioa config struct |
2955 | * @driver_dump: driver dump struct |
2956 | * |
2957 | * Return value: |
2958 | * nothing |
2959 | **/ |
2960 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, |
2961 | struct ipr_driver_dump *driver_dump) |
2962 | { |
2963 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
2964 | |
2965 | ipr_init_dump_entry_hdr(hdr: &driver_dump->ioa_type_entry.hdr); |
2966 | driver_dump->ioa_type_entry.hdr.len = |
2967 | sizeof(struct ipr_dump_ioa_type_entry) - |
2968 | sizeof(struct ipr_dump_entry_header); |
2969 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
2970 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; |
2971 | driver_dump->ioa_type_entry.type = ioa_cfg->type; |
2972 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | |
2973 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | |
2974 | ucode_vpd->minor_release[1]; |
2975 | driver_dump->hdr.num_entries++; |
2976 | } |
2977 | |
2978 | /** |
2979 | * ipr_dump_version_data - Fill in the driver version in the dump. |
2980 | * @ioa_cfg: ioa config struct |
2981 | * @driver_dump: driver dump struct |
2982 | * |
2983 | * Return value: |
2984 | * nothing |
2985 | **/ |
2986 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, |
2987 | struct ipr_driver_dump *driver_dump) |
2988 | { |
2989 | ipr_init_dump_entry_hdr(hdr: &driver_dump->version_entry.hdr); |
2990 | driver_dump->version_entry.hdr.len = |
2991 | sizeof(struct ipr_dump_version_entry) - |
2992 | sizeof(struct ipr_dump_entry_header); |
2993 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; |
2994 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; |
2995 | strcpy(p: driver_dump->version_entry.version, IPR_DRIVER_VERSION); |
2996 | driver_dump->hdr.num_entries++; |
2997 | } |
2998 | |
2999 | /** |
3000 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. |
3001 | * @ioa_cfg: ioa config struct |
3002 | * @driver_dump: driver dump struct |
3003 | * |
3004 | * Return value: |
3005 | * nothing |
3006 | **/ |
3007 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, |
3008 | struct ipr_driver_dump *driver_dump) |
3009 | { |
3010 | ipr_init_dump_entry_hdr(hdr: &driver_dump->trace_entry.hdr); |
3011 | driver_dump->trace_entry.hdr.len = |
3012 | sizeof(struct ipr_dump_trace_entry) - |
3013 | sizeof(struct ipr_dump_entry_header); |
3014 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
3015 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; |
3016 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); |
3017 | driver_dump->hdr.num_entries++; |
3018 | } |
3019 | |
3020 | /** |
3021 | * ipr_dump_location_data - Fill in the IOA location in the dump. |
3022 | * @ioa_cfg: ioa config struct |
3023 | * @driver_dump: driver dump struct |
3024 | * |
3025 | * Return value: |
3026 | * nothing |
3027 | **/ |
3028 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, |
3029 | struct ipr_driver_dump *driver_dump) |
3030 | { |
3031 | ipr_init_dump_entry_hdr(hdr: &driver_dump->location_entry.hdr); |
3032 | driver_dump->location_entry.hdr.len = |
3033 | sizeof(struct ipr_dump_location_entry) - |
3034 | sizeof(struct ipr_dump_entry_header); |
3035 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; |
3036 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; |
3037 | strcpy(p: driver_dump->location_entry.location, q: dev_name(dev: &ioa_cfg->pdev->dev)); |
3038 | driver_dump->hdr.num_entries++; |
3039 | } |
3040 | |
3041 | /** |
3042 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. |
3043 | * @ioa_cfg: ioa config struct |
3044 | * @dump: dump struct |
3045 | * |
3046 | * Return value: |
3047 | * nothing |
3048 | **/ |
3049 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) |
3050 | { |
3051 | unsigned long start_addr, sdt_word; |
3052 | unsigned long lock_flags = 0; |
3053 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; |
3054 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; |
3055 | u32 num_entries, max_num_entries, start_off, end_off; |
3056 | u32 max_dump_size, bytes_to_copy, bytes_copied, rc; |
3057 | struct ipr_sdt *sdt; |
3058 | int valid = 1; |
3059 | int i; |
3060 | |
3061 | ENTER; |
3062 | |
3063 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3064 | |
3065 | if (ioa_cfg->sdt_state != READ_DUMP) { |
3066 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3067 | return; |
3068 | } |
3069 | |
3070 | if (ioa_cfg->sis64) { |
3071 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3072 | ssleep(IPR_DUMP_DELAY_SECONDS); |
3073 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3074 | } |
3075 | |
3076 | start_addr = readl(addr: ioa_cfg->ioa_mailbox); |
3077 | |
3078 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(sdt_word: start_addr)) { |
3079 | dev_err(&ioa_cfg->pdev->dev, |
3080 | "Invalid dump table format: %lx\n" , start_addr); |
3081 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3082 | return; |
3083 | } |
3084 | |
3085 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n" ); |
3086 | |
3087 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; |
3088 | |
3089 | /* Initialize the overall dump header */ |
3090 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); |
3091 | driver_dump->hdr.num_entries = 1; |
3092 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); |
3093 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; |
3094 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; |
3095 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; |
3096 | |
3097 | ipr_dump_version_data(ioa_cfg, driver_dump); |
3098 | ipr_dump_location_data(ioa_cfg, driver_dump); |
3099 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); |
3100 | ipr_dump_trace_data(ioa_cfg, driver_dump); |
3101 | |
3102 | /* Update dump_header */ |
3103 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); |
3104 | |
3105 | /* IOA Dump entry */ |
3106 | ipr_init_dump_entry_hdr(hdr: &ioa_dump->hdr); |
3107 | ioa_dump->hdr.len = 0; |
3108 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
3109 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; |
3110 | |
3111 | /* First entries in sdt are actually a list of dump addresses and |
3112 | lengths to gather the real dump data. sdt represents the pointer |
3113 | to the ioa generated dump table. Dump data will be extracted based |
3114 | on entries in this table */ |
3115 | sdt = &ioa_dump->sdt; |
3116 | |
3117 | if (ioa_cfg->sis64) { |
3118 | max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES; |
3119 | max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; |
3120 | } else { |
3121 | max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES; |
3122 | max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; |
3123 | } |
3124 | |
3125 | bytes_to_copy = offsetof(struct ipr_sdt, entry) + |
3126 | (max_num_entries * sizeof(struct ipr_sdt_entry)); |
3127 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, dest: (__be32 *)sdt, |
3128 | length_in_words: bytes_to_copy / sizeof(__be32)); |
3129 | |
3130 | /* Smart Dump table is ready to use and the first entry is valid */ |
3131 | if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && |
3132 | (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { |
3133 | dev_err(&ioa_cfg->pdev->dev, |
3134 | "Dump of IOA failed. Dump table not valid: %d, %X.\n" , |
3135 | rc, be32_to_cpu(sdt->hdr.state)); |
3136 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; |
3137 | ioa_cfg->sdt_state = DUMP_OBTAINED; |
3138 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3139 | return; |
3140 | } |
3141 | |
3142 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); |
3143 | |
3144 | if (num_entries > max_num_entries) |
3145 | num_entries = max_num_entries; |
3146 | |
3147 | /* Update dump length to the actual data to be copied */ |
3148 | dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header); |
3149 | if (ioa_cfg->sis64) |
3150 | dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry); |
3151 | else |
3152 | dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry); |
3153 | |
3154 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3155 | |
3156 | for (i = 0; i < num_entries; i++) { |
3157 | if (ioa_dump->hdr.len > max_dump_size) { |
3158 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; |
3159 | break; |
3160 | } |
3161 | |
3162 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { |
3163 | sdt_word = be32_to_cpu(sdt->entry[i].start_token); |
3164 | if (ioa_cfg->sis64) |
3165 | bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); |
3166 | else { |
3167 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; |
3168 | end_off = be32_to_cpu(sdt->entry[i].end_token); |
3169 | |
3170 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) |
3171 | bytes_to_copy = end_off - start_off; |
3172 | else |
3173 | valid = 0; |
3174 | } |
3175 | if (valid) { |
3176 | if (bytes_to_copy > max_dump_size) { |
3177 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; |
3178 | continue; |
3179 | } |
3180 | |
3181 | /* Copy data from adapter to driver buffers */ |
3182 | bytes_copied = ipr_sdt_copy(ioa_cfg, pci_address: sdt_word, |
3183 | length: bytes_to_copy); |
3184 | |
3185 | ioa_dump->hdr.len += bytes_copied; |
3186 | |
3187 | if (bytes_copied != bytes_to_copy) { |
3188 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; |
3189 | break; |
3190 | } |
3191 | } |
3192 | } |
3193 | } |
3194 | |
3195 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n" ); |
3196 | |
3197 | /* Update dump_header */ |
3198 | driver_dump->hdr.len += ioa_dump->hdr.len; |
3199 | wmb(); |
3200 | ioa_cfg->sdt_state = DUMP_OBTAINED; |
3201 | LEAVE; |
3202 | } |
3203 | |
3204 | #else |
3205 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0) |
3206 | #endif |
3207 | |
3208 | /** |
3209 | * ipr_release_dump - Free adapter dump memory |
3210 | * @kref: kref struct |
3211 | * |
3212 | * Return value: |
3213 | * nothing |
3214 | **/ |
3215 | static void ipr_release_dump(struct kref *kref) |
3216 | { |
3217 | struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref); |
3218 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; |
3219 | unsigned long lock_flags = 0; |
3220 | int i; |
3221 | |
3222 | ENTER; |
3223 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3224 | ioa_cfg->dump = NULL; |
3225 | ioa_cfg->sdt_state = INACTIVE; |
3226 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3227 | |
3228 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) |
3229 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); |
3230 | |
3231 | vfree(addr: dump->ioa_dump.ioa_data); |
3232 | kfree(objp: dump); |
3233 | LEAVE; |
3234 | } |
3235 | |
3236 | static void ipr_add_remove_thread(struct work_struct *work) |
3237 | { |
3238 | unsigned long lock_flags; |
3239 | struct ipr_resource_entry *res; |
3240 | struct scsi_device *sdev; |
3241 | struct ipr_ioa_cfg *ioa_cfg = |
3242 | container_of(work, struct ipr_ioa_cfg, scsi_add_work_q); |
3243 | u8 bus, target, lun; |
3244 | int did_work; |
3245 | |
3246 | ENTER; |
3247 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3248 | |
3249 | restart: |
3250 | do { |
3251 | did_work = 0; |
3252 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { |
3253 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3254 | return; |
3255 | } |
3256 | |
3257 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
3258 | if (res->del_from_ml && res->sdev) { |
3259 | did_work = 1; |
3260 | sdev = res->sdev; |
3261 | if (!scsi_device_get(sdev)) { |
3262 | if (!res->add_to_ml) |
3263 | list_move_tail(list: &res->queue, head: &ioa_cfg->free_res_q); |
3264 | else |
3265 | res->del_from_ml = 0; |
3266 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3267 | scsi_remove_device(sdev); |
3268 | scsi_device_put(sdev); |
3269 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3270 | } |
3271 | break; |
3272 | } |
3273 | } |
3274 | } while (did_work); |
3275 | |
3276 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
3277 | if (res->add_to_ml) { |
3278 | bus = res->bus; |
3279 | target = res->target; |
3280 | lun = res->lun; |
3281 | res->add_to_ml = 0; |
3282 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3283 | scsi_add_device(host: ioa_cfg->host, channel: bus, target, lun); |
3284 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3285 | goto restart; |
3286 | } |
3287 | } |
3288 | |
3289 | ioa_cfg->scan_done = 1; |
3290 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3291 | kobject_uevent(kobj: &ioa_cfg->host->shost_dev.kobj, action: KOBJ_CHANGE); |
3292 | LEAVE; |
3293 | } |
3294 | |
3295 | /** |
3296 | * ipr_worker_thread - Worker thread |
3297 | * @work: ioa config struct |
3298 | * |
3299 | * Called at task level from a work thread. This function takes care |
3300 | * of adding and removing device from the mid-layer as configuration |
3301 | * changes are detected by the adapter. |
3302 | * |
3303 | * Return value: |
3304 | * nothing |
3305 | **/ |
3306 | static void ipr_worker_thread(struct work_struct *work) |
3307 | { |
3308 | unsigned long lock_flags; |
3309 | struct ipr_dump *dump; |
3310 | struct ipr_ioa_cfg *ioa_cfg = |
3311 | container_of(work, struct ipr_ioa_cfg, work_q); |
3312 | |
3313 | ENTER; |
3314 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3315 | |
3316 | if (ioa_cfg->sdt_state == READ_DUMP) { |
3317 | dump = ioa_cfg->dump; |
3318 | if (!dump) { |
3319 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3320 | return; |
3321 | } |
3322 | kref_get(kref: &dump->kref); |
3323 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3324 | ipr_get_ioa_dump(ioa_cfg, dump); |
3325 | kref_put(kref: &dump->kref, release: ipr_release_dump); |
3326 | |
3327 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3328 | if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout) |
3329 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
3330 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3331 | return; |
3332 | } |
3333 | |
3334 | if (ioa_cfg->scsi_unblock) { |
3335 | ioa_cfg->scsi_unblock = 0; |
3336 | ioa_cfg->scsi_blocked = 0; |
3337 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3338 | scsi_unblock_requests(ioa_cfg->host); |
3339 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3340 | if (ioa_cfg->scsi_blocked) |
3341 | scsi_block_requests(ioa_cfg->host); |
3342 | } |
3343 | |
3344 | if (!ioa_cfg->scan_enabled) { |
3345 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3346 | return; |
3347 | } |
3348 | |
3349 | schedule_work(work: &ioa_cfg->scsi_add_work_q); |
3350 | |
3351 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3352 | LEAVE; |
3353 | } |
3354 | |
3355 | #ifdef CONFIG_SCSI_IPR_TRACE |
3356 | /** |
3357 | * ipr_read_trace - Dump the adapter trace |
3358 | * @filp: open sysfs file |
3359 | * @kobj: kobject struct |
3360 | * @bin_attr: bin_attribute struct |
3361 | * @buf: buffer |
3362 | * @off: offset |
3363 | * @count: buffer size |
3364 | * |
3365 | * Return value: |
3366 | * number of bytes printed to buffer |
3367 | **/ |
3368 | static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, |
3369 | struct bin_attribute *bin_attr, |
3370 | char *buf, loff_t off, size_t count) |
3371 | { |
3372 | struct device *dev = kobj_to_dev(kobj); |
3373 | struct Scsi_Host *shost = class_to_shost(dev); |
3374 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3375 | unsigned long lock_flags = 0; |
3376 | ssize_t ret; |
3377 | |
3378 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3379 | ret = memory_read_from_buffer(to: buf, count, ppos: &off, from: ioa_cfg->trace, |
3380 | IPR_TRACE_SIZE); |
3381 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3382 | |
3383 | return ret; |
3384 | } |
3385 | |
3386 | static struct bin_attribute ipr_trace_attr = { |
3387 | .attr = { |
3388 | .name = "trace" , |
3389 | .mode = S_IRUGO, |
3390 | }, |
3391 | .size = 0, |
3392 | .read = ipr_read_trace, |
3393 | }; |
3394 | #endif |
3395 | |
3396 | /** |
3397 | * ipr_show_fw_version - Show the firmware version |
3398 | * @dev: class device struct |
3399 | * @attr: device attribute (unused) |
3400 | * @buf: buffer |
3401 | * |
3402 | * Return value: |
3403 | * number of bytes printed to buffer |
3404 | **/ |
3405 | static ssize_t ipr_show_fw_version(struct device *dev, |
3406 | struct device_attribute *attr, char *buf) |
3407 | { |
3408 | struct Scsi_Host *shost = class_to_shost(dev); |
3409 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3410 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
3411 | unsigned long lock_flags = 0; |
3412 | int len; |
3413 | |
3414 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3415 | len = snprintf(buf, PAGE_SIZE, fmt: "%02X%02X%02X%02X\n" , |
3416 | ucode_vpd->major_release, ucode_vpd->card_type, |
3417 | ucode_vpd->minor_release[0], |
3418 | ucode_vpd->minor_release[1]); |
3419 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3420 | return len; |
3421 | } |
3422 | |
3423 | static struct device_attribute ipr_fw_version_attr = { |
3424 | .attr = { |
3425 | .name = "fw_version" , |
3426 | .mode = S_IRUGO, |
3427 | }, |
3428 | .show = ipr_show_fw_version, |
3429 | }; |
3430 | |
3431 | /** |
3432 | * ipr_show_log_level - Show the adapter's error logging level |
3433 | * @dev: class device struct |
3434 | * @attr: device attribute (unused) |
3435 | * @buf: buffer |
3436 | * |
3437 | * Return value: |
3438 | * number of bytes printed to buffer |
3439 | **/ |
3440 | static ssize_t ipr_show_log_level(struct device *dev, |
3441 | struct device_attribute *attr, char *buf) |
3442 | { |
3443 | struct Scsi_Host *shost = class_to_shost(dev); |
3444 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3445 | unsigned long lock_flags = 0; |
3446 | int len; |
3447 | |
3448 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3449 | len = snprintf(buf, PAGE_SIZE, fmt: "%d\n" , ioa_cfg->log_level); |
3450 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3451 | return len; |
3452 | } |
3453 | |
3454 | /** |
3455 | * ipr_store_log_level - Change the adapter's error logging level |
3456 | * @dev: class device struct |
3457 | * @attr: device attribute (unused) |
3458 | * @buf: buffer |
3459 | * @count: buffer size |
3460 | * |
3461 | * Return value: |
3462 | * number of bytes printed to buffer |
3463 | **/ |
3464 | static ssize_t ipr_store_log_level(struct device *dev, |
3465 | struct device_attribute *attr, |
3466 | const char *buf, size_t count) |
3467 | { |
3468 | struct Scsi_Host *shost = class_to_shost(dev); |
3469 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3470 | unsigned long lock_flags = 0; |
3471 | |
3472 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3473 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); |
3474 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3475 | return strlen(buf); |
3476 | } |
3477 | |
3478 | static struct device_attribute ipr_log_level_attr = { |
3479 | .attr = { |
3480 | .name = "log_level" , |
3481 | .mode = S_IRUGO | S_IWUSR, |
3482 | }, |
3483 | .show = ipr_show_log_level, |
3484 | .store = ipr_store_log_level |
3485 | }; |
3486 | |
3487 | /** |
3488 | * ipr_store_diagnostics - IOA Diagnostics interface |
3489 | * @dev: device struct |
3490 | * @attr: device attribute (unused) |
3491 | * @buf: buffer |
3492 | * @count: buffer size |
3493 | * |
3494 | * This function will reset the adapter and wait a reasonable |
3495 | * amount of time for any errors that the adapter might log. |
3496 | * |
3497 | * Return value: |
3498 | * count on success / other on failure |
3499 | **/ |
3500 | static ssize_t ipr_store_diagnostics(struct device *dev, |
3501 | struct device_attribute *attr, |
3502 | const char *buf, size_t count) |
3503 | { |
3504 | struct Scsi_Host *shost = class_to_shost(dev); |
3505 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3506 | unsigned long lock_flags = 0; |
3507 | int rc = count; |
3508 | |
3509 | if (!capable(CAP_SYS_ADMIN)) |
3510 | return -EACCES; |
3511 | |
3512 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3513 | while (ioa_cfg->in_reset_reload) { |
3514 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3515 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3516 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3517 | } |
3518 | |
3519 | ioa_cfg->errors_logged = 0; |
3520 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
3521 | |
3522 | if (ioa_cfg->in_reset_reload) { |
3523 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3524 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3525 | |
3526 | /* Wait for a second for any errors to be logged */ |
3527 | msleep(msecs: 1000); |
3528 | } else { |
3529 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3530 | return -EIO; |
3531 | } |
3532 | |
3533 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3534 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) |
3535 | rc = -EIO; |
3536 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3537 | |
3538 | return rc; |
3539 | } |
3540 | |
3541 | static struct device_attribute ipr_diagnostics_attr = { |
3542 | .attr = { |
3543 | .name = "run_diagnostics" , |
3544 | .mode = S_IWUSR, |
3545 | }, |
3546 | .store = ipr_store_diagnostics |
3547 | }; |
3548 | |
3549 | /** |
3550 | * ipr_show_adapter_state - Show the adapter's state |
3551 | * @dev: device struct |
3552 | * @attr: device attribute (unused) |
3553 | * @buf: buffer |
3554 | * |
3555 | * Return value: |
3556 | * number of bytes printed to buffer |
3557 | **/ |
3558 | static ssize_t ipr_show_adapter_state(struct device *dev, |
3559 | struct device_attribute *attr, char *buf) |
3560 | { |
3561 | struct Scsi_Host *shost = class_to_shost(dev); |
3562 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3563 | unsigned long lock_flags = 0; |
3564 | int len; |
3565 | |
3566 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3567 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
3568 | len = snprintf(buf, PAGE_SIZE, fmt: "offline\n" ); |
3569 | else |
3570 | len = snprintf(buf, PAGE_SIZE, fmt: "online\n" ); |
3571 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3572 | return len; |
3573 | } |
3574 | |
3575 | /** |
3576 | * ipr_store_adapter_state - Change adapter state |
3577 | * @dev: device struct |
3578 | * @attr: device attribute (unused) |
3579 | * @buf: buffer |
3580 | * @count: buffer size |
3581 | * |
3582 | * This function will change the adapter's state. |
3583 | * |
3584 | * Return value: |
3585 | * count on success / other on failure |
3586 | **/ |
3587 | static ssize_t ipr_store_adapter_state(struct device *dev, |
3588 | struct device_attribute *attr, |
3589 | const char *buf, size_t count) |
3590 | { |
3591 | struct Scsi_Host *shost = class_to_shost(dev); |
3592 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3593 | unsigned long lock_flags; |
3594 | int result = count, i; |
3595 | |
3596 | if (!capable(CAP_SYS_ADMIN)) |
3597 | return -EACCES; |
3598 | |
3599 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3600 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && |
3601 | !strncmp(buf, "online" , 6)) { |
3602 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
3603 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
3604 | ioa_cfg->hrrq[i].ioa_is_dead = 0; |
3605 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
3606 | } |
3607 | wmb(); |
3608 | ioa_cfg->reset_retries = 0; |
3609 | ioa_cfg->in_ioa_bringdown = 0; |
3610 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
3611 | } |
3612 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3613 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3614 | |
3615 | return result; |
3616 | } |
3617 | |
3618 | static struct device_attribute ipr_ioa_state_attr = { |
3619 | .attr = { |
3620 | .name = "online_state" , |
3621 | .mode = S_IRUGO | S_IWUSR, |
3622 | }, |
3623 | .show = ipr_show_adapter_state, |
3624 | .store = ipr_store_adapter_state |
3625 | }; |
3626 | |
3627 | /** |
3628 | * ipr_store_reset_adapter - Reset the adapter |
3629 | * @dev: device struct |
3630 | * @attr: device attribute (unused) |
3631 | * @buf: buffer |
3632 | * @count: buffer size |
3633 | * |
3634 | * This function will reset the adapter. |
3635 | * |
3636 | * Return value: |
3637 | * count on success / other on failure |
3638 | **/ |
3639 | static ssize_t ipr_store_reset_adapter(struct device *dev, |
3640 | struct device_attribute *attr, |
3641 | const char *buf, size_t count) |
3642 | { |
3643 | struct Scsi_Host *shost = class_to_shost(dev); |
3644 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3645 | unsigned long lock_flags; |
3646 | int result = count; |
3647 | |
3648 | if (!capable(CAP_SYS_ADMIN)) |
3649 | return -EACCES; |
3650 | |
3651 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3652 | if (!ioa_cfg->in_reset_reload) |
3653 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
3654 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3655 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3656 | |
3657 | return result; |
3658 | } |
3659 | |
3660 | static struct device_attribute ipr_ioa_reset_attr = { |
3661 | .attr = { |
3662 | .name = "reset_host" , |
3663 | .mode = S_IWUSR, |
3664 | }, |
3665 | .store = ipr_store_reset_adapter |
3666 | }; |
3667 | |
3668 | static int ipr_iopoll(struct irq_poll *iop, int budget); |
3669 | /** |
3670 | * ipr_show_iopoll_weight - Show ipr polling mode |
3671 | * @dev: class device struct |
3672 | * @attr: device attribute (unused) |
3673 | * @buf: buffer |
3674 | * |
3675 | * Return value: |
3676 | * number of bytes printed to buffer |
3677 | **/ |
3678 | static ssize_t ipr_show_iopoll_weight(struct device *dev, |
3679 | struct device_attribute *attr, char *buf) |
3680 | { |
3681 | struct Scsi_Host *shost = class_to_shost(dev); |
3682 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3683 | unsigned long lock_flags = 0; |
3684 | int len; |
3685 | |
3686 | spin_lock_irqsave(shost->host_lock, lock_flags); |
3687 | len = snprintf(buf, PAGE_SIZE, fmt: "%d\n" , ioa_cfg->iopoll_weight); |
3688 | spin_unlock_irqrestore(lock: shost->host_lock, flags: lock_flags); |
3689 | |
3690 | return len; |
3691 | } |
3692 | |
3693 | /** |
3694 | * ipr_store_iopoll_weight - Change the adapter's polling mode |
3695 | * @dev: class device struct |
3696 | * @attr: device attribute (unused) |
3697 | * @buf: buffer |
3698 | * @count: buffer size |
3699 | * |
3700 | * Return value: |
3701 | * number of bytes printed to buffer |
3702 | **/ |
3703 | static ssize_t ipr_store_iopoll_weight(struct device *dev, |
3704 | struct device_attribute *attr, |
3705 | const char *buf, size_t count) |
3706 | { |
3707 | struct Scsi_Host *shost = class_to_shost(dev); |
3708 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3709 | unsigned long user_iopoll_weight; |
3710 | unsigned long lock_flags = 0; |
3711 | int i; |
3712 | |
3713 | if (!ioa_cfg->sis64) { |
3714 | dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n" ); |
3715 | return -EINVAL; |
3716 | } |
3717 | if (kstrtoul(s: buf, base: 10, res: &user_iopoll_weight)) |
3718 | return -EINVAL; |
3719 | |
3720 | if (user_iopoll_weight > 256) { |
3721 | dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n" ); |
3722 | return -EINVAL; |
3723 | } |
3724 | |
3725 | if (user_iopoll_weight == ioa_cfg->iopoll_weight) { |
3726 | dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n" ); |
3727 | return strlen(buf); |
3728 | } |
3729 | |
3730 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
3731 | for (i = 1; i < ioa_cfg->hrrq_num; i++) |
3732 | irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); |
3733 | } |
3734 | |
3735 | spin_lock_irqsave(shost->host_lock, lock_flags); |
3736 | ioa_cfg->iopoll_weight = user_iopoll_weight; |
3737 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
3738 | for (i = 1; i < ioa_cfg->hrrq_num; i++) { |
3739 | irq_poll_init(&ioa_cfg->hrrq[i].iopoll, |
3740 | ioa_cfg->iopoll_weight, ipr_iopoll); |
3741 | } |
3742 | } |
3743 | spin_unlock_irqrestore(lock: shost->host_lock, flags: lock_flags); |
3744 | |
3745 | return strlen(buf); |
3746 | } |
3747 | |
3748 | static struct device_attribute ipr_iopoll_weight_attr = { |
3749 | .attr = { |
3750 | .name = "iopoll_weight" , |
3751 | .mode = S_IRUGO | S_IWUSR, |
3752 | }, |
3753 | .show = ipr_show_iopoll_weight, |
3754 | .store = ipr_store_iopoll_weight |
3755 | }; |
3756 | |
3757 | /** |
3758 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer |
3759 | * @buf_len: buffer length |
3760 | * |
3761 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather |
3762 | * list to use for microcode download |
3763 | * |
3764 | * Return value: |
3765 | * pointer to sglist / NULL on failure |
3766 | **/ |
3767 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) |
3768 | { |
3769 | int sg_size, order; |
3770 | struct ipr_sglist *sglist; |
3771 | |
3772 | /* Get the minimum size per scatter/gather element */ |
3773 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); |
3774 | |
3775 | /* Get the actual size per element */ |
3776 | order = get_order(size: sg_size); |
3777 | |
3778 | /* Allocate a scatter/gather list for the DMA */ |
3779 | sglist = kzalloc(size: sizeof(struct ipr_sglist), GFP_KERNEL); |
3780 | if (sglist == NULL) { |
3781 | ipr_trace; |
3782 | return NULL; |
3783 | } |
3784 | sglist->order = order; |
3785 | sglist->scatterlist = sgl_alloc_order(length: buf_len, order, chainable: false, GFP_KERNEL, |
3786 | nent_p: &sglist->num_sg); |
3787 | if (!sglist->scatterlist) { |
3788 | kfree(objp: sglist); |
3789 | return NULL; |
3790 | } |
3791 | |
3792 | return sglist; |
3793 | } |
3794 | |
3795 | /** |
3796 | * ipr_free_ucode_buffer - Frees a microcode download buffer |
3797 | * @sglist: scatter/gather list pointer |
3798 | * |
3799 | * Free a DMA'able ucode download buffer previously allocated with |
3800 | * ipr_alloc_ucode_buffer |
3801 | * |
3802 | * Return value: |
3803 | * nothing |
3804 | **/ |
3805 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) |
3806 | { |
3807 | sgl_free_order(sgl: sglist->scatterlist, order: sglist->order); |
3808 | kfree(objp: sglist); |
3809 | } |
3810 | |
3811 | /** |
3812 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer |
3813 | * @sglist: scatter/gather list pointer |
3814 | * @buffer: buffer pointer |
3815 | * @len: buffer length |
3816 | * |
3817 | * Copy a microcode image from a user buffer into a buffer allocated by |
3818 | * ipr_alloc_ucode_buffer |
3819 | * |
3820 | * Return value: |
3821 | * 0 on success / other on failure |
3822 | **/ |
3823 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, |
3824 | u8 *buffer, u32 len) |
3825 | { |
3826 | int bsize_elem, i, result = 0; |
3827 | struct scatterlist *sg; |
3828 | |
3829 | /* Determine the actual number of bytes per element */ |
3830 | bsize_elem = PAGE_SIZE * (1 << sglist->order); |
3831 | |
3832 | sg = sglist->scatterlist; |
3833 | |
3834 | for (i = 0; i < (len / bsize_elem); i++, sg = sg_next(sg), |
3835 | buffer += bsize_elem) { |
3836 | struct page *page = sg_page(sg); |
3837 | |
3838 | memcpy_to_page(page, offset: 0, from: buffer, len: bsize_elem); |
3839 | |
3840 | sg->length = bsize_elem; |
3841 | |
3842 | if (result != 0) { |
3843 | ipr_trace; |
3844 | return result; |
3845 | } |
3846 | } |
3847 | |
3848 | if (len % bsize_elem) { |
3849 | struct page *page = sg_page(sg); |
3850 | |
3851 | memcpy_to_page(page, offset: 0, from: buffer, len: len % bsize_elem); |
3852 | |
3853 | sg->length = len % bsize_elem; |
3854 | } |
3855 | |
3856 | sglist->buffer_len = len; |
3857 | return result; |
3858 | } |
3859 | |
3860 | /** |
3861 | * ipr_build_ucode_ioadl64 - Build a microcode download IOADL |
3862 | * @ipr_cmd: ipr command struct |
3863 | * @sglist: scatter/gather list |
3864 | * |
3865 | * Builds a microcode download IOA data list (IOADL). |
3866 | * |
3867 | **/ |
3868 | static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, |
3869 | struct ipr_sglist *sglist) |
3870 | { |
3871 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
3872 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; |
3873 | struct scatterlist *scatterlist = sglist->scatterlist; |
3874 | struct scatterlist *sg; |
3875 | int i; |
3876 | |
3877 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
3878 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
3879 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); |
3880 | |
3881 | ioarcb->ioadl_len = |
3882 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); |
3883 | for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) { |
3884 | ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); |
3885 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); |
3886 | ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); |
3887 | } |
3888 | |
3889 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
3890 | } |
3891 | |
3892 | /** |
3893 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
3894 | * @ipr_cmd: ipr command struct |
3895 | * @sglist: scatter/gather list |
3896 | * |
3897 | * Builds a microcode download IOA data list (IOADL). |
3898 | * |
3899 | **/ |
3900 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
3901 | struct ipr_sglist *sglist) |
3902 | { |
3903 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
3904 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
3905 | struct scatterlist *scatterlist = sglist->scatterlist; |
3906 | struct scatterlist *sg; |
3907 | int i; |
3908 | |
3909 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
3910 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
3911 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); |
3912 | |
3913 | ioarcb->ioadl_len = |
3914 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
3915 | |
3916 | for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) { |
3917 | ioadl[i].flags_and_data_len = |
3918 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(sg)); |
3919 | ioadl[i].address = |
3920 | cpu_to_be32(sg_dma_address(sg)); |
3921 | } |
3922 | |
3923 | ioadl[i-1].flags_and_data_len |= |
3924 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
3925 | } |
3926 | |
3927 | /** |
3928 | * ipr_update_ioa_ucode - Update IOA's microcode |
3929 | * @ioa_cfg: ioa config struct |
3930 | * @sglist: scatter/gather list |
3931 | * |
3932 | * Initiate an adapter reset to update the IOA's microcode |
3933 | * |
3934 | * Return value: |
3935 | * 0 on success / -EIO on failure |
3936 | **/ |
3937 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, |
3938 | struct ipr_sglist *sglist) |
3939 | { |
3940 | unsigned long lock_flags; |
3941 | |
3942 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3943 | while (ioa_cfg->in_reset_reload) { |
3944 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3945 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3946 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3947 | } |
3948 | |
3949 | if (ioa_cfg->ucode_sglist) { |
3950 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3951 | dev_err(&ioa_cfg->pdev->dev, |
3952 | "Microcode download already in progress\n" ); |
3953 | return -EIO; |
3954 | } |
3955 | |
3956 | sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev, |
3957 | sglist->scatterlist, sglist->num_sg, |
3958 | DMA_TO_DEVICE); |
3959 | |
3960 | if (!sglist->num_dma_sg) { |
3961 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3962 | dev_err(&ioa_cfg->pdev->dev, |
3963 | "Failed to map microcode download buffer!\n" ); |
3964 | return -EIO; |
3965 | } |
3966 | |
3967 | ioa_cfg->ucode_sglist = sglist; |
3968 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
3969 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3970 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3971 | |
3972 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3973 | ioa_cfg->ucode_sglist = NULL; |
3974 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3975 | return 0; |
3976 | } |
3977 | |
3978 | /** |
3979 | * ipr_store_update_fw - Update the firmware on the adapter |
3980 | * @dev: device struct |
3981 | * @attr: device attribute (unused) |
3982 | * @buf: buffer |
3983 | * @count: buffer size |
3984 | * |
3985 | * This function will update the firmware on the adapter. |
3986 | * |
3987 | * Return value: |
3988 | * count on success / other on failure |
3989 | **/ |
3990 | static ssize_t ipr_store_update_fw(struct device *dev, |
3991 | struct device_attribute *attr, |
3992 | const char *buf, size_t count) |
3993 | { |
3994 | struct Scsi_Host *shost = class_to_shost(dev); |
3995 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3996 | struct ipr_ucode_image_header *image_hdr; |
3997 | const struct firmware *fw_entry; |
3998 | struct ipr_sglist *sglist; |
3999 | char fname[100]; |
4000 | char *src; |
4001 | char *endline; |
4002 | int result, dnld_size; |
4003 | |
4004 | if (!capable(CAP_SYS_ADMIN)) |
4005 | return -EACCES; |
4006 | |
4007 | snprintf(buf: fname, size: sizeof(fname), fmt: "%s" , buf); |
4008 | |
4009 | endline = strchr(fname, '\n'); |
4010 | if (endline) |
4011 | *endline = '\0'; |
4012 | |
4013 | if (request_firmware(fw: &fw_entry, name: fname, device: &ioa_cfg->pdev->dev)) { |
4014 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n" , fname); |
4015 | return -EIO; |
4016 | } |
4017 | |
4018 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; |
4019 | |
4020 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); |
4021 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); |
4022 | sglist = ipr_alloc_ucode_buffer(buf_len: dnld_size); |
4023 | |
4024 | if (!sglist) { |
4025 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n" ); |
4026 | release_firmware(fw: fw_entry); |
4027 | return -ENOMEM; |
4028 | } |
4029 | |
4030 | result = ipr_copy_ucode_buffer(sglist, buffer: src, len: dnld_size); |
4031 | |
4032 | if (result) { |
4033 | dev_err(&ioa_cfg->pdev->dev, |
4034 | "Microcode buffer copy to DMA buffer failed\n" ); |
4035 | goto out; |
4036 | } |
4037 | |
4038 | ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n" ); |
4039 | |
4040 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
4041 | |
4042 | if (!result) |
4043 | result = count; |
4044 | out: |
4045 | ipr_free_ucode_buffer(sglist); |
4046 | release_firmware(fw: fw_entry); |
4047 | return result; |
4048 | } |
4049 | |
4050 | static struct device_attribute ipr_update_fw_attr = { |
4051 | .attr = { |
4052 | .name = "update_fw" , |
4053 | .mode = S_IWUSR, |
4054 | }, |
4055 | .store = ipr_store_update_fw |
4056 | }; |
4057 | |
4058 | /** |
4059 | * ipr_show_fw_type - Show the adapter's firmware type. |
4060 | * @dev: class device struct |
4061 | * @attr: device attribute (unused) |
4062 | * @buf: buffer |
4063 | * |
4064 | * Return value: |
4065 | * number of bytes printed to buffer |
4066 | **/ |
4067 | static ssize_t ipr_show_fw_type(struct device *dev, |
4068 | struct device_attribute *attr, char *buf) |
4069 | { |
4070 | struct Scsi_Host *shost = class_to_shost(dev); |
4071 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4072 | unsigned long lock_flags = 0; |
4073 | int len; |
4074 | |
4075 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4076 | len = snprintf(buf, PAGE_SIZE, fmt: "%d\n" , ioa_cfg->sis64); |
4077 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4078 | return len; |
4079 | } |
4080 | |
4081 | static struct device_attribute ipr_ioa_fw_type_attr = { |
4082 | .attr = { |
4083 | .name = "fw_type" , |
4084 | .mode = S_IRUGO, |
4085 | }, |
4086 | .show = ipr_show_fw_type |
4087 | }; |
4088 | |
4089 | static ssize_t ipr_read_async_err_log(struct file *filep, struct kobject *kobj, |
4090 | struct bin_attribute *bin_attr, char *buf, |
4091 | loff_t off, size_t count) |
4092 | { |
4093 | struct device *cdev = kobj_to_dev(kobj); |
4094 | struct Scsi_Host *shost = class_to_shost(cdev); |
4095 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4096 | struct ipr_hostrcb *hostrcb; |
4097 | unsigned long lock_flags = 0; |
4098 | int ret; |
4099 | |
4100 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4101 | hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q, |
4102 | struct ipr_hostrcb, queue); |
4103 | if (!hostrcb) { |
4104 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4105 | return 0; |
4106 | } |
4107 | ret = memory_read_from_buffer(to: buf, count, ppos: &off, from: &hostrcb->hcam, |
4108 | available: sizeof(hostrcb->hcam)); |
4109 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4110 | return ret; |
4111 | } |
4112 | |
4113 | static ssize_t ipr_next_async_err_log(struct file *filep, struct kobject *kobj, |
4114 | struct bin_attribute *bin_attr, char *buf, |
4115 | loff_t off, size_t count) |
4116 | { |
4117 | struct device *cdev = kobj_to_dev(kobj); |
4118 | struct Scsi_Host *shost = class_to_shost(cdev); |
4119 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4120 | struct ipr_hostrcb *hostrcb; |
4121 | unsigned long lock_flags = 0; |
4122 | |
4123 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4124 | hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q, |
4125 | struct ipr_hostrcb, queue); |
4126 | if (!hostrcb) { |
4127 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4128 | return count; |
4129 | } |
4130 | |
4131 | /* Reclaim hostrcb before exit */ |
4132 | list_move_tail(list: &hostrcb->queue, head: &ioa_cfg->hostrcb_free_q); |
4133 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4134 | return count; |
4135 | } |
4136 | |
4137 | static struct bin_attribute ipr_ioa_async_err_log = { |
4138 | .attr = { |
4139 | .name = "async_err_log" , |
4140 | .mode = S_IRUGO | S_IWUSR, |
4141 | }, |
4142 | .size = 0, |
4143 | .read = ipr_read_async_err_log, |
4144 | .write = ipr_next_async_err_log |
4145 | }; |
4146 | |
4147 | static struct attribute *ipr_ioa_attrs[] = { |
4148 | &ipr_fw_version_attr.attr, |
4149 | &ipr_log_level_attr.attr, |
4150 | &ipr_diagnostics_attr.attr, |
4151 | &ipr_ioa_state_attr.attr, |
4152 | &ipr_ioa_reset_attr.attr, |
4153 | &ipr_update_fw_attr.attr, |
4154 | &ipr_ioa_fw_type_attr.attr, |
4155 | &ipr_iopoll_weight_attr.attr, |
4156 | NULL, |
4157 | }; |
4158 | |
4159 | ATTRIBUTE_GROUPS(ipr_ioa); |
4160 | |
4161 | #ifdef CONFIG_SCSI_IPR_DUMP |
4162 | /** |
4163 | * ipr_read_dump - Dump the adapter |
4164 | * @filp: open sysfs file |
4165 | * @kobj: kobject struct |
4166 | * @bin_attr: bin_attribute struct |
4167 | * @buf: buffer |
4168 | * @off: offset |
4169 | * @count: buffer size |
4170 | * |
4171 | * Return value: |
4172 | * number of bytes printed to buffer |
4173 | **/ |
4174 | static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, |
4175 | struct bin_attribute *bin_attr, |
4176 | char *buf, loff_t off, size_t count) |
4177 | { |
4178 | struct device *cdev = kobj_to_dev(kobj); |
4179 | struct Scsi_Host *shost = class_to_shost(cdev); |
4180 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4181 | struct ipr_dump *dump; |
4182 | unsigned long lock_flags = 0; |
4183 | char *src; |
4184 | int len, sdt_end; |
4185 | size_t rc = count; |
4186 | |
4187 | if (!capable(CAP_SYS_ADMIN)) |
4188 | return -EACCES; |
4189 | |
4190 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4191 | dump = ioa_cfg->dump; |
4192 | |
4193 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { |
4194 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4195 | return 0; |
4196 | } |
4197 | kref_get(kref: &dump->kref); |
4198 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4199 | |
4200 | if (off > dump->driver_dump.hdr.len) { |
4201 | kref_put(kref: &dump->kref, release: ipr_release_dump); |
4202 | return 0; |
4203 | } |
4204 | |
4205 | if (off + count > dump->driver_dump.hdr.len) { |
4206 | count = dump->driver_dump.hdr.len - off; |
4207 | rc = count; |
4208 | } |
4209 | |
4210 | if (count && off < sizeof(dump->driver_dump)) { |
4211 | if (off + count > sizeof(dump->driver_dump)) |
4212 | len = sizeof(dump->driver_dump) - off; |
4213 | else |
4214 | len = count; |
4215 | src = (u8 *)&dump->driver_dump + off; |
4216 | memcpy(buf, src, len); |
4217 | buf += len; |
4218 | off += len; |
4219 | count -= len; |
4220 | } |
4221 | |
4222 | off -= sizeof(dump->driver_dump); |
4223 | |
4224 | if (ioa_cfg->sis64) |
4225 | sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + |
4226 | (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) * |
4227 | sizeof(struct ipr_sdt_entry)); |
4228 | else |
4229 | sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + |
4230 | (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry)); |
4231 | |
4232 | if (count && off < sdt_end) { |
4233 | if (off + count > sdt_end) |
4234 | len = sdt_end - off; |
4235 | else |
4236 | len = count; |
4237 | src = (u8 *)&dump->ioa_dump + off; |
4238 | memcpy(buf, src, len); |
4239 | buf += len; |
4240 | off += len; |
4241 | count -= len; |
4242 | } |
4243 | |
4244 | off -= sdt_end; |
4245 | |
4246 | while (count) { |
4247 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) |
4248 | len = PAGE_ALIGN(off) - off; |
4249 | else |
4250 | len = count; |
4251 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; |
4252 | src += off & ~PAGE_MASK; |
4253 | memcpy(buf, src, len); |
4254 | buf += len; |
4255 | off += len; |
4256 | count -= len; |
4257 | } |
4258 | |
4259 | kref_put(kref: &dump->kref, release: ipr_release_dump); |
4260 | return rc; |
4261 | } |
4262 | |
4263 | /** |
4264 | * ipr_alloc_dump - Prepare for adapter dump |
4265 | * @ioa_cfg: ioa config struct |
4266 | * |
4267 | * Return value: |
4268 | * 0 on success / other on failure |
4269 | **/ |
4270 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) |
4271 | { |
4272 | struct ipr_dump *dump; |
4273 | __be32 **ioa_data; |
4274 | unsigned long lock_flags = 0; |
4275 | |
4276 | dump = kzalloc(size: sizeof(struct ipr_dump), GFP_KERNEL); |
4277 | |
4278 | if (!dump) { |
4279 | ipr_err("Dump memory allocation failed\n" ); |
4280 | return -ENOMEM; |
4281 | } |
4282 | |
4283 | if (ioa_cfg->sis64) |
4284 | ioa_data = vmalloc(array_size(IPR_FMT3_MAX_NUM_DUMP_PAGES, |
4285 | sizeof(__be32 *))); |
4286 | else |
4287 | ioa_data = vmalloc(array_size(IPR_FMT2_MAX_NUM_DUMP_PAGES, |
4288 | sizeof(__be32 *))); |
4289 | |
4290 | if (!ioa_data) { |
4291 | ipr_err("Dump memory allocation failed\n" ); |
4292 | kfree(objp: dump); |
4293 | return -ENOMEM; |
4294 | } |
4295 | |
4296 | dump->ioa_dump.ioa_data = ioa_data; |
4297 | |
4298 | kref_init(kref: &dump->kref); |
4299 | dump->ioa_cfg = ioa_cfg; |
4300 | |
4301 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4302 | |
4303 | if (INACTIVE != ioa_cfg->sdt_state) { |
4304 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4305 | vfree(addr: dump->ioa_dump.ioa_data); |
4306 | kfree(objp: dump); |
4307 | return 0; |
4308 | } |
4309 | |
4310 | ioa_cfg->dump = dump; |
4311 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
4312 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) { |
4313 | ioa_cfg->dump_taken = 1; |
4314 | schedule_work(work: &ioa_cfg->work_q); |
4315 | } |
4316 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4317 | |
4318 | return 0; |
4319 | } |
4320 | |
4321 | /** |
4322 | * ipr_free_dump - Free adapter dump memory |
4323 | * @ioa_cfg: ioa config struct |
4324 | * |
4325 | * Return value: |
4326 | * 0 on success / other on failure |
4327 | **/ |
4328 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) |
4329 | { |
4330 | struct ipr_dump *dump; |
4331 | unsigned long lock_flags = 0; |
4332 | |
4333 | ENTER; |
4334 | |
4335 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4336 | dump = ioa_cfg->dump; |
4337 | if (!dump) { |
4338 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4339 | return 0; |
4340 | } |
4341 | |
4342 | ioa_cfg->dump = NULL; |
4343 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4344 | |
4345 | kref_put(kref: &dump->kref, release: ipr_release_dump); |
4346 | |
4347 | LEAVE; |
4348 | return 0; |
4349 | } |
4350 | |
4351 | /** |
4352 | * ipr_write_dump - Setup dump state of adapter |
4353 | * @filp: open sysfs file |
4354 | * @kobj: kobject struct |
4355 | * @bin_attr: bin_attribute struct |
4356 | * @buf: buffer |
4357 | * @off: offset |
4358 | * @count: buffer size |
4359 | * |
4360 | * Return value: |
4361 | * number of bytes printed to buffer |
4362 | **/ |
4363 | static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, |
4364 | struct bin_attribute *bin_attr, |
4365 | char *buf, loff_t off, size_t count) |
4366 | { |
4367 | struct device *cdev = kobj_to_dev(kobj); |
4368 | struct Scsi_Host *shost = class_to_shost(cdev); |
4369 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4370 | int rc; |
4371 | |
4372 | if (!capable(CAP_SYS_ADMIN)) |
4373 | return -EACCES; |
4374 | |
4375 | if (buf[0] == '1') |
4376 | rc = ipr_alloc_dump(ioa_cfg); |
4377 | else if (buf[0] == '0') |
4378 | rc = ipr_free_dump(ioa_cfg); |
4379 | else |
4380 | return -EINVAL; |
4381 | |
4382 | if (rc) |
4383 | return rc; |
4384 | else |
4385 | return count; |
4386 | } |
4387 | |
4388 | static struct bin_attribute ipr_dump_attr = { |
4389 | .attr = { |
4390 | .name = "dump" , |
4391 | .mode = S_IRUSR | S_IWUSR, |
4392 | }, |
4393 | .size = 0, |
4394 | .read = ipr_read_dump, |
4395 | .write = ipr_write_dump |
4396 | }; |
4397 | #else |
4398 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; |
4399 | #endif |
4400 | |
4401 | /** |
4402 | * ipr_change_queue_depth - Change the device's queue depth |
4403 | * @sdev: scsi device struct |
4404 | * @qdepth: depth to set |
4405 | * |
4406 | * Return value: |
4407 | * actual depth set |
4408 | **/ |
4409 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) |
4410 | { |
4411 | scsi_change_queue_depth(sdev, qdepth); |
4412 | return sdev->queue_depth; |
4413 | } |
4414 | |
4415 | /** |
4416 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device |
4417 | * @dev: device struct |
4418 | * @attr: device attribute structure |
4419 | * @buf: buffer |
4420 | * |
4421 | * Return value: |
4422 | * number of bytes printed to buffer |
4423 | **/ |
4424 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
4425 | { |
4426 | struct scsi_device *sdev = to_scsi_device(dev); |
4427 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4428 | struct ipr_resource_entry *res; |
4429 | unsigned long lock_flags = 0; |
4430 | ssize_t len = -ENXIO; |
4431 | |
4432 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4433 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4434 | if (res) |
4435 | len = snprintf(buf, PAGE_SIZE, fmt: "%08X\n" , res->res_handle); |
4436 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4437 | return len; |
4438 | } |
4439 | |
4440 | static struct device_attribute ipr_adapter_handle_attr = { |
4441 | .attr = { |
4442 | .name = "adapter_handle" , |
4443 | .mode = S_IRUSR, |
4444 | }, |
4445 | .show = ipr_show_adapter_handle |
4446 | }; |
4447 | |
4448 | /** |
4449 | * ipr_show_resource_path - Show the resource path or the resource address for |
4450 | * this device. |
4451 | * @dev: device struct |
4452 | * @attr: device attribute structure |
4453 | * @buf: buffer |
4454 | * |
4455 | * Return value: |
4456 | * number of bytes printed to buffer |
4457 | **/ |
4458 | static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) |
4459 | { |
4460 | struct scsi_device *sdev = to_scsi_device(dev); |
4461 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4462 | struct ipr_resource_entry *res; |
4463 | unsigned long lock_flags = 0; |
4464 | ssize_t len = -ENXIO; |
4465 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
4466 | |
4467 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4468 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4469 | if (res && ioa_cfg->sis64) |
4470 | len = snprintf(buf, PAGE_SIZE, fmt: "%s\n" , |
4471 | __ipr_format_res_path(res_path: res->res_path, buffer, |
4472 | len: sizeof(buffer))); |
4473 | else if (res) |
4474 | len = snprintf(buf, PAGE_SIZE, fmt: "%d:%d:%d:%d\n" , ioa_cfg->host->host_no, |
4475 | res->bus, res->target, res->lun); |
4476 | |
4477 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4478 | return len; |
4479 | } |
4480 | |
4481 | static struct device_attribute ipr_resource_path_attr = { |
4482 | .attr = { |
4483 | .name = "resource_path" , |
4484 | .mode = S_IRUGO, |
4485 | }, |
4486 | .show = ipr_show_resource_path |
4487 | }; |
4488 | |
4489 | /** |
4490 | * ipr_show_device_id - Show the device_id for this device. |
4491 | * @dev: device struct |
4492 | * @attr: device attribute structure |
4493 | * @buf: buffer |
4494 | * |
4495 | * Return value: |
4496 | * number of bytes printed to buffer |
4497 | **/ |
4498 | static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) |
4499 | { |
4500 | struct scsi_device *sdev = to_scsi_device(dev); |
4501 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4502 | struct ipr_resource_entry *res; |
4503 | unsigned long lock_flags = 0; |
4504 | ssize_t len = -ENXIO; |
4505 | |
4506 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4507 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4508 | if (res && ioa_cfg->sis64) |
4509 | len = snprintf(buf, PAGE_SIZE, fmt: "0x%llx\n" , be64_to_cpu(res->dev_id)); |
4510 | else if (res) |
4511 | len = snprintf(buf, PAGE_SIZE, fmt: "0x%llx\n" , res->lun_wwn); |
4512 | |
4513 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4514 | return len; |
4515 | } |
4516 | |
4517 | static struct device_attribute ipr_device_id_attr = { |
4518 | .attr = { |
4519 | .name = "device_id" , |
4520 | .mode = S_IRUGO, |
4521 | }, |
4522 | .show = ipr_show_device_id |
4523 | }; |
4524 | |
4525 | /** |
4526 | * ipr_show_resource_type - Show the resource type for this device. |
4527 | * @dev: device struct |
4528 | * @attr: device attribute structure |
4529 | * @buf: buffer |
4530 | * |
4531 | * Return value: |
4532 | * number of bytes printed to buffer |
4533 | **/ |
4534 | static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) |
4535 | { |
4536 | struct scsi_device *sdev = to_scsi_device(dev); |
4537 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4538 | struct ipr_resource_entry *res; |
4539 | unsigned long lock_flags = 0; |
4540 | ssize_t len = -ENXIO; |
4541 | |
4542 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4543 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4544 | |
4545 | if (res) |
4546 | len = snprintf(buf, PAGE_SIZE, fmt: "%x\n" , res->type); |
4547 | |
4548 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4549 | return len; |
4550 | } |
4551 | |
4552 | static struct device_attribute ipr_resource_type_attr = { |
4553 | .attr = { |
4554 | .name = "resource_type" , |
4555 | .mode = S_IRUGO, |
4556 | }, |
4557 | .show = ipr_show_resource_type |
4558 | }; |
4559 | |
4560 | /** |
4561 | * ipr_show_raw_mode - Show the adapter's raw mode |
4562 | * @dev: class device struct |
4563 | * @attr: device attribute (unused) |
4564 | * @buf: buffer |
4565 | * |
4566 | * Return value: |
4567 | * number of bytes printed to buffer |
4568 | **/ |
4569 | static ssize_t ipr_show_raw_mode(struct device *dev, |
4570 | struct device_attribute *attr, char *buf) |
4571 | { |
4572 | struct scsi_device *sdev = to_scsi_device(dev); |
4573 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4574 | struct ipr_resource_entry *res; |
4575 | unsigned long lock_flags = 0; |
4576 | ssize_t len; |
4577 | |
4578 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4579 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4580 | if (res) |
4581 | len = snprintf(buf, PAGE_SIZE, fmt: "%d\n" , res->raw_mode); |
4582 | else |
4583 | len = -ENXIO; |
4584 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4585 | return len; |
4586 | } |
4587 | |
4588 | /** |
4589 | * ipr_store_raw_mode - Change the adapter's raw mode |
4590 | * @dev: class device struct |
4591 | * @attr: device attribute (unused) |
4592 | * @buf: buffer |
4593 | * @count: buffer size |
4594 | * |
4595 | * Return value: |
4596 | * number of bytes printed to buffer |
4597 | **/ |
4598 | static ssize_t ipr_store_raw_mode(struct device *dev, |
4599 | struct device_attribute *attr, |
4600 | const char *buf, size_t count) |
4601 | { |
4602 | struct scsi_device *sdev = to_scsi_device(dev); |
4603 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4604 | struct ipr_resource_entry *res; |
4605 | unsigned long lock_flags = 0; |
4606 | ssize_t len; |
4607 | |
4608 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4609 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4610 | if (res) { |
4611 | if (ipr_is_af_dasd_device(res)) { |
4612 | res->raw_mode = simple_strtoul(buf, NULL, 10); |
4613 | len = strlen(buf); |
4614 | if (res->sdev) |
4615 | sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n" , |
4616 | res->raw_mode ? "enabled" : "disabled" ); |
4617 | } else |
4618 | len = -EINVAL; |
4619 | } else |
4620 | len = -ENXIO; |
4621 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4622 | return len; |
4623 | } |
4624 | |
4625 | static struct device_attribute ipr_raw_mode_attr = { |
4626 | .attr = { |
4627 | .name = "raw_mode" , |
4628 | .mode = S_IRUGO | S_IWUSR, |
4629 | }, |
4630 | .show = ipr_show_raw_mode, |
4631 | .store = ipr_store_raw_mode |
4632 | }; |
4633 | |
4634 | static struct attribute *ipr_dev_attrs[] = { |
4635 | &ipr_adapter_handle_attr.attr, |
4636 | &ipr_resource_path_attr.attr, |
4637 | &ipr_device_id_attr.attr, |
4638 | &ipr_resource_type_attr.attr, |
4639 | &ipr_raw_mode_attr.attr, |
4640 | NULL, |
4641 | }; |
4642 | |
4643 | ATTRIBUTE_GROUPS(ipr_dev); |
4644 | |
4645 | /** |
4646 | * ipr_biosparam - Return the HSC mapping |
4647 | * @sdev: scsi device struct |
4648 | * @block_device: block device pointer |
4649 | * @capacity: capacity of the device |
4650 | * @parm: Array containing returned HSC values. |
4651 | * |
4652 | * This function generates the HSC parms that fdisk uses. |
4653 | * We want to make sure we return something that places partitions |
4654 | * on 4k boundaries for best performance with the IOA. |
4655 | * |
4656 | * Return value: |
4657 | * 0 on success |
4658 | **/ |
4659 | static int ipr_biosparam(struct scsi_device *sdev, |
4660 | struct block_device *block_device, |
4661 | sector_t capacity, int *parm) |
4662 | { |
4663 | int heads, sectors; |
4664 | sector_t cylinders; |
4665 | |
4666 | heads = 128; |
4667 | sectors = 32; |
4668 | |
4669 | cylinders = capacity; |
4670 | sector_div(cylinders, (128 * 32)); |
4671 | |
4672 | /* return result */ |
4673 | parm[0] = heads; |
4674 | parm[1] = sectors; |
4675 | parm[2] = cylinders; |
4676 | |
4677 | return 0; |
4678 | } |
4679 | |
4680 | /** |
4681 | * ipr_find_starget - Find target based on bus/target. |
4682 | * @starget: scsi target struct |
4683 | * |
4684 | * Return value: |
4685 | * resource entry pointer if found / NULL if not found |
4686 | **/ |
4687 | static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) |
4688 | { |
4689 | struct Scsi_Host *shost = dev_to_shost(dev: &starget->dev); |
4690 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
4691 | struct ipr_resource_entry *res; |
4692 | |
4693 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
4694 | if ((res->bus == starget->channel) && |
4695 | (res->target == starget->id)) { |
4696 | return res; |
4697 | } |
4698 | } |
4699 | |
4700 | return NULL; |
4701 | } |
4702 | |
4703 | /** |
4704 | * ipr_target_destroy - Destroy a SCSI target |
4705 | * @starget: scsi target struct |
4706 | * |
4707 | **/ |
4708 | static void ipr_target_destroy(struct scsi_target *starget) |
4709 | { |
4710 | struct Scsi_Host *shost = dev_to_shost(dev: &starget->dev); |
4711 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
4712 | |
4713 | if (ioa_cfg->sis64) { |
4714 | if (!ipr_find_starget(starget)) { |
4715 | if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) |
4716 | clear_bit(nr: starget->id, addr: ioa_cfg->array_ids); |
4717 | else if (starget->channel == IPR_VSET_VIRTUAL_BUS) |
4718 | clear_bit(nr: starget->id, addr: ioa_cfg->vset_ids); |
4719 | else if (starget->channel == 0) |
4720 | clear_bit(nr: starget->id, addr: ioa_cfg->target_ids); |
4721 | } |
4722 | } |
4723 | } |
4724 | |
4725 | /** |
4726 | * ipr_find_sdev - Find device based on bus/target/lun. |
4727 | * @sdev: scsi device struct |
4728 | * |
4729 | * Return value: |
4730 | * resource entry pointer if found / NULL if not found |
4731 | **/ |
4732 | static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) |
4733 | { |
4734 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
4735 | struct ipr_resource_entry *res; |
4736 | |
4737 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
4738 | if ((res->bus == sdev->channel) && |
4739 | (res->target == sdev->id) && |
4740 | (res->lun == sdev->lun)) |
4741 | return res; |
4742 | } |
4743 | |
4744 | return NULL; |
4745 | } |
4746 | |
4747 | /** |
4748 | * ipr_slave_destroy - Unconfigure a SCSI device |
4749 | * @sdev: scsi device struct |
4750 | * |
4751 | * Return value: |
4752 | * nothing |
4753 | **/ |
4754 | static void ipr_slave_destroy(struct scsi_device *sdev) |
4755 | { |
4756 | struct ipr_resource_entry *res; |
4757 | struct ipr_ioa_cfg *ioa_cfg; |
4758 | unsigned long lock_flags = 0; |
4759 | |
4760 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
4761 | |
4762 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4763 | res = (struct ipr_resource_entry *) sdev->hostdata; |
4764 | if (res) { |
4765 | sdev->hostdata = NULL; |
4766 | res->sdev = NULL; |
4767 | } |
4768 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4769 | } |
4770 | |
4771 | /** |
4772 | * ipr_slave_configure - Configure a SCSI device |
4773 | * @sdev: scsi device struct |
4774 | * |
4775 | * This function configures the specified scsi device. |
4776 | * |
4777 | * Return value: |
4778 | * 0 on success |
4779 | **/ |
4780 | static int ipr_slave_configure(struct scsi_device *sdev) |
4781 | { |
4782 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
4783 | struct ipr_resource_entry *res; |
4784 | unsigned long lock_flags = 0; |
4785 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
4786 | |
4787 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4788 | res = sdev->hostdata; |
4789 | if (res) { |
4790 | if (ipr_is_af_dasd_device(res)) |
4791 | sdev->type = TYPE_RAID; |
4792 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
4793 | sdev->scsi_level = 4; |
4794 | sdev->no_uld_attach = 1; |
4795 | } |
4796 | if (ipr_is_vset_device(res)) { |
4797 | sdev->scsi_level = SCSI_SPC_3; |
4798 | sdev->no_report_opcodes = 1; |
4799 | blk_queue_rq_timeout(sdev->request_queue, |
4800 | IPR_VSET_RW_TIMEOUT); |
4801 | blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); |
4802 | } |
4803 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4804 | |
4805 | if (ioa_cfg->sis64) |
4806 | sdev_printk(KERN_INFO, sdev, "Resource path: %s\n" , |
4807 | ipr_format_res_path(ioa_cfg, |
4808 | res->res_path, buffer, sizeof(buffer))); |
4809 | return 0; |
4810 | } |
4811 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4812 | return 0; |
4813 | } |
4814 | |
4815 | /** |
4816 | * ipr_slave_alloc - Prepare for commands to a device. |
4817 | * @sdev: scsi device struct |
4818 | * |
4819 | * This function saves a pointer to the resource entry |
4820 | * in the scsi device struct if the device exists. We |
4821 | * can then use this pointer in ipr_queuecommand when |
4822 | * handling new commands. |
4823 | * |
4824 | * Return value: |
4825 | * 0 on success / -ENXIO if device does not exist |
4826 | **/ |
4827 | static int ipr_slave_alloc(struct scsi_device *sdev) |
4828 | { |
4829 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
4830 | struct ipr_resource_entry *res; |
4831 | unsigned long lock_flags; |
4832 | int rc = -ENXIO; |
4833 | |
4834 | sdev->hostdata = NULL; |
4835 | |
4836 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4837 | |
4838 | res = ipr_find_sdev(sdev); |
4839 | if (res) { |
4840 | res->sdev = sdev; |
4841 | res->add_to_ml = 0; |
4842 | res->in_erp = 0; |
4843 | sdev->hostdata = res; |
4844 | if (!ipr_is_naca_model(res)) |
4845 | res->needs_sync_complete = 1; |
4846 | rc = 0; |
4847 | if (ipr_is_gata(res)) { |
4848 | sdev_printk(KERN_ERR, sdev, "SATA devices are no longer " |
4849 | "supported by this driver. Skipping device.\n" ); |
4850 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4851 | return -ENXIO; |
4852 | } |
4853 | } |
4854 | |
4855 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4856 | |
4857 | return rc; |
4858 | } |
4859 | |
4860 | /** |
4861 | * ipr_match_lun - Match function for specified LUN |
4862 | * @ipr_cmd: ipr command struct |
4863 | * @device: device to match (sdev) |
4864 | * |
4865 | * Returns: |
4866 | * 1 if command matches sdev / 0 if command does not match sdev |
4867 | **/ |
4868 | static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device) |
4869 | { |
4870 | if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device) |
4871 | return 1; |
4872 | return 0; |
4873 | } |
4874 | |
4875 | /** |
4876 | * ipr_cmnd_is_free - Check if a command is free or not |
4877 | * @ipr_cmd: ipr command struct |
4878 | * |
4879 | * Returns: |
4880 | * true / false |
4881 | **/ |
4882 | static bool ipr_cmnd_is_free(struct ipr_cmnd *ipr_cmd) |
4883 | { |
4884 | struct ipr_cmnd *loop_cmd; |
4885 | |
4886 | list_for_each_entry(loop_cmd, &ipr_cmd->hrrq->hrrq_free_q, queue) { |
4887 | if (loop_cmd == ipr_cmd) |
4888 | return true; |
4889 | } |
4890 | |
4891 | return false; |
4892 | } |
4893 | |
4894 | /** |
4895 | * ipr_wait_for_ops - Wait for matching commands to complete |
4896 | * @ioa_cfg: ioa config struct |
4897 | * @device: device to match (sdev) |
4898 | * @match: match function to use |
4899 | * |
4900 | * Returns: |
4901 | * SUCCESS / FAILED |
4902 | **/ |
4903 | static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device, |
4904 | int (*match)(struct ipr_cmnd *, void *)) |
4905 | { |
4906 | struct ipr_cmnd *ipr_cmd; |
4907 | int wait, i; |
4908 | unsigned long flags; |
4909 | struct ipr_hrr_queue *hrrq; |
4910 | signed long timeout = IPR_ABORT_TASK_TIMEOUT; |
4911 | DECLARE_COMPLETION_ONSTACK(comp); |
4912 | |
4913 | ENTER; |
4914 | do { |
4915 | wait = 0; |
4916 | |
4917 | for_each_hrrq(hrrq, ioa_cfg) { |
4918 | spin_lock_irqsave(hrrq->lock, flags); |
4919 | for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { |
4920 | ipr_cmd = ioa_cfg->ipr_cmnd_list[i]; |
4921 | if (!ipr_cmnd_is_free(ipr_cmd)) { |
4922 | if (match(ipr_cmd, device)) { |
4923 | ipr_cmd->eh_comp = ∁ |
4924 | wait++; |
4925 | } |
4926 | } |
4927 | } |
4928 | spin_unlock_irqrestore(lock: hrrq->lock, flags); |
4929 | } |
4930 | |
4931 | if (wait) { |
4932 | timeout = wait_for_completion_timeout(x: &comp, timeout); |
4933 | |
4934 | if (!timeout) { |
4935 | wait = 0; |
4936 | |
4937 | for_each_hrrq(hrrq, ioa_cfg) { |
4938 | spin_lock_irqsave(hrrq->lock, flags); |
4939 | for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { |
4940 | ipr_cmd = ioa_cfg->ipr_cmnd_list[i]; |
4941 | if (!ipr_cmnd_is_free(ipr_cmd)) { |
4942 | if (match(ipr_cmd, device)) { |
4943 | ipr_cmd->eh_comp = NULL; |
4944 | wait++; |
4945 | } |
4946 | } |
4947 | } |
4948 | spin_unlock_irqrestore(lock: hrrq->lock, flags); |
4949 | } |
4950 | |
4951 | if (wait) |
4952 | dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n" ); |
4953 | LEAVE; |
4954 | return wait ? FAILED : SUCCESS; |
4955 | } |
4956 | } |
4957 | } while (wait); |
4958 | |
4959 | LEAVE; |
4960 | return SUCCESS; |
4961 | } |
4962 | |
4963 | static int ipr_eh_host_reset(struct scsi_cmnd *cmd) |
4964 | { |
4965 | struct ipr_ioa_cfg *ioa_cfg; |
4966 | unsigned long lock_flags = 0; |
4967 | int rc = SUCCESS; |
4968 | |
4969 | ENTER; |
4970 | ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; |
4971 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4972 | |
4973 | if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
4974 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); |
4975 | dev_err(&ioa_cfg->pdev->dev, |
4976 | "Adapter being reset as a result of error recovery.\n" ); |
4977 | |
4978 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
4979 | ioa_cfg->sdt_state = GET_DUMP; |
4980 | } |
4981 | |
4982 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4983 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
4984 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4985 | |
4986 | /* If we got hit with a host reset while we were already resetting |
4987 | the adapter for some reason, and the reset failed. */ |
4988 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
4989 | ipr_trace; |
4990 | rc = FAILED; |
4991 | } |
4992 | |
4993 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4994 | LEAVE; |
4995 | return rc; |
4996 | } |
4997 | |
4998 | /** |
4999 | * ipr_device_reset - Reset the device |
5000 | * @ioa_cfg: ioa config struct |
5001 | * @res: resource entry struct |
5002 | * |
5003 | * This function issues a device reset to the affected device. |
5004 | * If the device is a SCSI device, a LUN reset will be sent |
5005 | * to the device first. If that does not work, a target reset |
5006 | * will be sent. |
5007 | * |
5008 | * Return value: |
5009 | * 0 on success / non-zero on failure |
5010 | **/ |
5011 | static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, |
5012 | struct ipr_resource_entry *res) |
5013 | { |
5014 | struct ipr_cmnd *ipr_cmd; |
5015 | struct ipr_ioarcb *ioarcb; |
5016 | struct ipr_cmd_pkt *cmd_pkt; |
5017 | u32 ioasc; |
5018 | |
5019 | ENTER; |
5020 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
5021 | ioarcb = &ipr_cmd->ioarcb; |
5022 | cmd_pkt = &ioarcb->cmd_pkt; |
5023 | |
5024 | if (ipr_cmd->ioa_cfg->sis64) |
5025 | ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); |
5026 | |
5027 | ioarcb->res_handle = res->res_handle; |
5028 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
5029 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; |
5030 | |
5031 | ipr_send_blocking_cmd(ipr_cmd, timeout_func: ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
5032 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5033 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
5034 | |
5035 | LEAVE; |
5036 | return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0; |
5037 | } |
5038 | |
5039 | /** |
5040 | * __ipr_eh_dev_reset - Reset the device |
5041 | * @scsi_cmd: scsi command struct |
5042 | * |
5043 | * This function issues a device reset to the affected device. |
5044 | * A LUN reset will be sent to the device first. If that does |
5045 | * not work, a target reset will be sent. |
5046 | * |
5047 | * Return value: |
5048 | * SUCCESS / FAILED |
5049 | **/ |
5050 | static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd) |
5051 | { |
5052 | struct ipr_ioa_cfg *ioa_cfg; |
5053 | struct ipr_resource_entry *res; |
5054 | int rc = 0; |
5055 | |
5056 | ENTER; |
5057 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; |
5058 | res = scsi_cmd->device->hostdata; |
5059 | |
5060 | /* |
5061 | * If we are currently going through reset/reload, return failed. This will force the |
5062 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the |
5063 | * reset to complete |
5064 | */ |
5065 | if (ioa_cfg->in_reset_reload) |
5066 | return FAILED; |
5067 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
5068 | return FAILED; |
5069 | |
5070 | res->resetting_device = 1; |
5071 | scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n" ); |
5072 | |
5073 | rc = ipr_device_reset(ioa_cfg, res); |
5074 | res->resetting_device = 0; |
5075 | res->reset_occurred = 1; |
5076 | |
5077 | LEAVE; |
5078 | return rc ? FAILED : SUCCESS; |
5079 | } |
5080 | |
5081 | static int ipr_eh_dev_reset(struct scsi_cmnd *cmd) |
5082 | { |
5083 | int rc; |
5084 | struct ipr_ioa_cfg *ioa_cfg; |
5085 | struct ipr_resource_entry *res; |
5086 | |
5087 | ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; |
5088 | res = cmd->device->hostdata; |
5089 | |
5090 | if (!res) |
5091 | return FAILED; |
5092 | |
5093 | spin_lock_irq(lock: cmd->device->host->host_lock); |
5094 | rc = __ipr_eh_dev_reset(scsi_cmd: cmd); |
5095 | spin_unlock_irq(lock: cmd->device->host->host_lock); |
5096 | |
5097 | if (rc == SUCCESS) |
5098 | rc = ipr_wait_for_ops(ioa_cfg, device: cmd->device, match: ipr_match_lun); |
5099 | |
5100 | return rc; |
5101 | } |
5102 | |
5103 | /** |
5104 | * ipr_bus_reset_done - Op done function for bus reset. |
5105 | * @ipr_cmd: ipr command struct |
5106 | * |
5107 | * This function is the op done function for a bus reset |
5108 | * |
5109 | * Return value: |
5110 | * none |
5111 | **/ |
5112 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) |
5113 | { |
5114 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
5115 | struct ipr_resource_entry *res; |
5116 | |
5117 | ENTER; |
5118 | if (!ioa_cfg->sis64) |
5119 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
5120 | if (res->res_handle == ipr_cmd->ioarcb.res_handle) { |
5121 | scsi_report_bus_reset(ioa_cfg->host, res->bus); |
5122 | break; |
5123 | } |
5124 | } |
5125 | |
5126 | /* |
5127 | * If abort has not completed, indicate the reset has, else call the |
5128 | * abort's done function to wake the sleeping eh thread |
5129 | */ |
5130 | if (ipr_cmd->sibling->sibling) |
5131 | ipr_cmd->sibling->sibling = NULL; |
5132 | else |
5133 | ipr_cmd->sibling->done(ipr_cmd->sibling); |
5134 | |
5135 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
5136 | LEAVE; |
5137 | } |
5138 | |
5139 | /** |
5140 | * ipr_abort_timeout - An abort task has timed out |
5141 | * @t: Timer context used to fetch ipr command struct |
5142 | * |
5143 | * This function handles when an abort task times out. If this |
5144 | * happens we issue a bus reset since we have resources tied |
5145 | * up that must be freed before returning to the midlayer. |
5146 | * |
5147 | * Return value: |
5148 | * none |
5149 | **/ |
5150 | static void ipr_abort_timeout(struct timer_list *t) |
5151 | { |
5152 | struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); |
5153 | struct ipr_cmnd *reset_cmd; |
5154 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
5155 | struct ipr_cmd_pkt *cmd_pkt; |
5156 | unsigned long lock_flags = 0; |
5157 | |
5158 | ENTER; |
5159 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
5160 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { |
5161 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
5162 | return; |
5163 | } |
5164 | |
5165 | sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n" ); |
5166 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
5167 | ipr_cmd->sibling = reset_cmd; |
5168 | reset_cmd->sibling = ipr_cmd; |
5169 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; |
5170 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; |
5171 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
5172 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; |
5173 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; |
5174 | |
5175 | ipr_do_req(ipr_cmd: reset_cmd, done: ipr_bus_reset_done, timeout_func: ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
5176 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
5177 | LEAVE; |
5178 | } |
5179 | |
5180 | /** |
5181 | * ipr_cancel_op - Cancel specified op |
5182 | * @scsi_cmd: scsi command struct |
5183 | * |
5184 | * This function cancels specified op. |
5185 | * |
5186 | * Return value: |
5187 | * SUCCESS / FAILED |
5188 | **/ |
5189 | static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd) |
5190 | { |
5191 | struct ipr_cmnd *ipr_cmd; |
5192 | struct ipr_ioa_cfg *ioa_cfg; |
5193 | struct ipr_resource_entry *res; |
5194 | struct ipr_cmd_pkt *cmd_pkt; |
5195 | u32 ioasc; |
5196 | int i, op_found = 0; |
5197 | struct ipr_hrr_queue *hrrq; |
5198 | |
5199 | ENTER; |
5200 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; |
5201 | res = scsi_cmd->device->hostdata; |
5202 | |
5203 | /* If we are currently going through reset/reload, return failed. |
5204 | * This will force the mid-layer to call ipr_eh_host_reset, |
5205 | * which will then go to sleep and wait for the reset to complete |
5206 | */ |
5207 | if (ioa_cfg->in_reset_reload || |
5208 | ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
5209 | return FAILED; |
5210 | if (!res) |
5211 | return FAILED; |
5212 | |
5213 | /* |
5214 | * If we are aborting a timed out op, chances are that the timeout was caused |
5215 | * by a still not detected EEH error. In such cases, reading a register will |
5216 | * trigger the EEH recovery infrastructure. |
5217 | */ |
5218 | readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
5219 | |
5220 | if (!ipr_is_gscsi(res)) |
5221 | return FAILED; |
5222 | |
5223 | for_each_hrrq(hrrq, ioa_cfg) { |
5224 | spin_lock(lock: &hrrq->_lock); |
5225 | for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { |
5226 | if (ioa_cfg->ipr_cmnd_list[i]->scsi_cmd == scsi_cmd) { |
5227 | if (!ipr_cmnd_is_free(ipr_cmd: ioa_cfg->ipr_cmnd_list[i])) { |
5228 | op_found = 1; |
5229 | break; |
5230 | } |
5231 | } |
5232 | } |
5233 | spin_unlock(lock: &hrrq->_lock); |
5234 | } |
5235 | |
5236 | if (!op_found) |
5237 | return SUCCESS; |
5238 | |
5239 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
5240 | ipr_cmd->ioarcb.res_handle = res->res_handle; |
5241 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
5242 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
5243 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; |
5244 | ipr_cmd->u.sdev = scsi_cmd->device; |
5245 | |
5246 | scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n" , |
5247 | scsi_cmd->cmnd[0]); |
5248 | ipr_send_blocking_cmd(ipr_cmd, timeout_func: ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); |
5249 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5250 | |
5251 | /* |
5252 | * If the abort task timed out and we sent a bus reset, we will get |
5253 | * one the following responses to the abort |
5254 | */ |
5255 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { |
5256 | ioasc = 0; |
5257 | ipr_trace; |
5258 | } |
5259 | |
5260 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
5261 | if (!ipr_is_naca_model(res)) |
5262 | res->needs_sync_complete = 1; |
5263 | |
5264 | LEAVE; |
5265 | return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS; |
5266 | } |
5267 | |
5268 | /** |
5269 | * ipr_scan_finished - Report whether scan is done |
5270 | * @shost: scsi host struct |
5271 | * @elapsed_time: elapsed time |
5272 | * |
5273 | * Return value: |
5274 | * 0 if scan in progress / 1 if scan is complete |
5275 | **/ |
5276 | static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time) |
5277 | { |
5278 | unsigned long lock_flags; |
5279 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
5280 | int rc = 0; |
5281 | |
5282 | spin_lock_irqsave(shost->host_lock, lock_flags); |
5283 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done) |
5284 | rc = 1; |
5285 | if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2)) |
5286 | rc = 1; |
5287 | spin_unlock_irqrestore(lock: shost->host_lock, flags: lock_flags); |
5288 | return rc; |
5289 | } |
5290 | |
5291 | /** |
5292 | * ipr_eh_abort - Reset the host adapter |
5293 | * @scsi_cmd: scsi command struct |
5294 | * |
5295 | * Return value: |
5296 | * SUCCESS / FAILED |
5297 | **/ |
5298 | static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd) |
5299 | { |
5300 | unsigned long flags; |
5301 | int rc; |
5302 | struct ipr_ioa_cfg *ioa_cfg; |
5303 | |
5304 | ENTER; |
5305 | |
5306 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; |
5307 | |
5308 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
5309 | rc = ipr_cancel_op(scsi_cmd); |
5310 | spin_unlock_irqrestore(lock: scsi_cmd->device->host->host_lock, flags); |
5311 | |
5312 | if (rc == SUCCESS) |
5313 | rc = ipr_wait_for_ops(ioa_cfg, device: scsi_cmd->device, match: ipr_match_lun); |
5314 | LEAVE; |
5315 | return rc; |
5316 | } |
5317 | |
5318 | /** |
5319 | * ipr_handle_other_interrupt - Handle "other" interrupts |
5320 | * @ioa_cfg: ioa config struct |
5321 | * @int_reg: interrupt register |
5322 | * |
5323 | * Return value: |
5324 | * IRQ_NONE / IRQ_HANDLED |
5325 | **/ |
5326 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, |
5327 | u32 int_reg) |
5328 | { |
5329 | irqreturn_t rc = IRQ_HANDLED; |
5330 | u32 int_mask_reg; |
5331 | |
5332 | int_mask_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg32); |
5333 | int_reg &= ~int_mask_reg; |
5334 | |
5335 | /* If an interrupt on the adapter did not occur, ignore it. |
5336 | * Or in the case of SIS 64, check for a stage change interrupt. |
5337 | */ |
5338 | if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) { |
5339 | if (ioa_cfg->sis64) { |
5340 | int_mask_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
5341 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; |
5342 | if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { |
5343 | |
5344 | /* clear stage change */ |
5345 | writel(IPR_PCII_IPL_STAGE_CHANGE, addr: ioa_cfg->regs.clr_interrupt_reg); |
5346 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; |
5347 | list_del(entry: &ioa_cfg->reset_cmd->queue); |
5348 | del_timer(timer: &ioa_cfg->reset_cmd->timer); |
5349 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); |
5350 | return IRQ_HANDLED; |
5351 | } |
5352 | } |
5353 | |
5354 | return IRQ_NONE; |
5355 | } |
5356 | |
5357 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
5358 | /* Mask the interrupt */ |
5359 | writel(IPR_PCII_IOA_TRANS_TO_OPER, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
5360 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
5361 | |
5362 | list_del(entry: &ioa_cfg->reset_cmd->queue); |
5363 | del_timer(timer: &ioa_cfg->reset_cmd->timer); |
5364 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); |
5365 | } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) { |
5366 | if (ioa_cfg->clear_isr) { |
5367 | if (ipr_debug && printk_ratelimit()) |
5368 | dev_err(&ioa_cfg->pdev->dev, |
5369 | "Spurious interrupt detected. 0x%08X\n" , int_reg); |
5370 | writel(IPR_PCII_HRRQ_UPDATED, addr: ioa_cfg->regs.clr_interrupt_reg32); |
5371 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
5372 | return IRQ_NONE; |
5373 | } |
5374 | } else { |
5375 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) |
5376 | ioa_cfg->ioa_unit_checked = 1; |
5377 | else if (int_reg & IPR_PCII_NO_HOST_RRQ) |
5378 | dev_err(&ioa_cfg->pdev->dev, |
5379 | "No Host RRQ. 0x%08X\n" , int_reg); |
5380 | else |
5381 | dev_err(&ioa_cfg->pdev->dev, |
5382 | "Permanent IOA failure. 0x%08X\n" , int_reg); |
5383 | |
5384 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
5385 | ioa_cfg->sdt_state = GET_DUMP; |
5386 | |
5387 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~0); |
5388 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
5389 | } |
5390 | |
5391 | return rc; |
5392 | } |
5393 | |
5394 | /** |
5395 | * ipr_isr_eh - Interrupt service routine error handler |
5396 | * @ioa_cfg: ioa config struct |
5397 | * @msg: message to log |
5398 | * @number: various meanings depending on the caller/message |
5399 | * |
5400 | * Return value: |
5401 | * none |
5402 | **/ |
5403 | static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number) |
5404 | { |
5405 | ioa_cfg->errors_logged++; |
5406 | dev_err(&ioa_cfg->pdev->dev, "%s %d\n" , msg, number); |
5407 | |
5408 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
5409 | ioa_cfg->sdt_state = GET_DUMP; |
5410 | |
5411 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
5412 | } |
5413 | |
5414 | static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget, |
5415 | struct list_head *doneq) |
5416 | { |
5417 | u32 ioasc; |
5418 | u16 cmd_index; |
5419 | struct ipr_cmnd *ipr_cmd; |
5420 | struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg; |
5421 | int num_hrrq = 0; |
5422 | |
5423 | /* If interrupts are disabled, ignore the interrupt */ |
5424 | if (!hrr_queue->allow_interrupts) |
5425 | return 0; |
5426 | |
5427 | while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
5428 | hrr_queue->toggle_bit) { |
5429 | |
5430 | cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) & |
5431 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> |
5432 | IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; |
5433 | |
5434 | if (unlikely(cmd_index > hrr_queue->max_cmd_id || |
5435 | cmd_index < hrr_queue->min_cmd_id)) { |
5436 | ipr_isr_eh(ioa_cfg, |
5437 | msg: "Invalid response handle from IOA: " , |
5438 | number: cmd_index); |
5439 | break; |
5440 | } |
5441 | |
5442 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; |
5443 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5444 | |
5445 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, add_data: ioasc); |
5446 | |
5447 | list_move_tail(list: &ipr_cmd->queue, head: doneq); |
5448 | |
5449 | if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) { |
5450 | hrr_queue->hrrq_curr++; |
5451 | } else { |
5452 | hrr_queue->hrrq_curr = hrr_queue->hrrq_start; |
5453 | hrr_queue->toggle_bit ^= 1u; |
5454 | } |
5455 | num_hrrq++; |
5456 | if (budget > 0 && num_hrrq >= budget) |
5457 | break; |
5458 | } |
5459 | |
5460 | return num_hrrq; |
5461 | } |
5462 | |
5463 | static int ipr_iopoll(struct irq_poll *iop, int budget) |
5464 | { |
5465 | struct ipr_hrr_queue *hrrq; |
5466 | struct ipr_cmnd *ipr_cmd, *temp; |
5467 | unsigned long hrrq_flags; |
5468 | int completed_ops; |
5469 | LIST_HEAD(doneq); |
5470 | |
5471 | hrrq = container_of(iop, struct ipr_hrr_queue, iopoll); |
5472 | |
5473 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
5474 | completed_ops = ipr_process_hrrq(hrr_queue: hrrq, budget, doneq: &doneq); |
5475 | |
5476 | if (completed_ops < budget) |
5477 | irq_poll_complete(iop); |
5478 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5479 | |
5480 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
5481 | list_del(entry: &ipr_cmd->queue); |
5482 | del_timer(timer: &ipr_cmd->timer); |
5483 | ipr_cmd->fast_done(ipr_cmd); |
5484 | } |
5485 | |
5486 | return completed_ops; |
5487 | } |
5488 | |
5489 | /** |
5490 | * ipr_isr - Interrupt service routine |
5491 | * @irq: irq number |
5492 | * @devp: pointer to ioa config struct |
5493 | * |
5494 | * Return value: |
5495 | * IRQ_NONE / IRQ_HANDLED |
5496 | **/ |
5497 | static irqreturn_t ipr_isr(int irq, void *devp) |
5498 | { |
5499 | struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; |
5500 | struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; |
5501 | unsigned long hrrq_flags = 0; |
5502 | u32 int_reg = 0; |
5503 | int num_hrrq = 0; |
5504 | int irq_none = 0; |
5505 | struct ipr_cmnd *ipr_cmd, *temp; |
5506 | irqreturn_t rc = IRQ_NONE; |
5507 | LIST_HEAD(doneq); |
5508 | |
5509 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
5510 | /* If interrupts are disabled, ignore the interrupt */ |
5511 | if (!hrrq->allow_interrupts) { |
5512 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5513 | return IRQ_NONE; |
5514 | } |
5515 | |
5516 | while (1) { |
5517 | if (ipr_process_hrrq(hrr_queue: hrrq, budget: -1, doneq: &doneq)) { |
5518 | rc = IRQ_HANDLED; |
5519 | |
5520 | if (!ioa_cfg->clear_isr) |
5521 | break; |
5522 | |
5523 | /* Clear the PCI interrupt */ |
5524 | num_hrrq = 0; |
5525 | do { |
5526 | writel(IPR_PCII_HRRQ_UPDATED, |
5527 | addr: ioa_cfg->regs.clr_interrupt_reg32); |
5528 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
5529 | } while (int_reg & IPR_PCII_HRRQ_UPDATED && |
5530 | num_hrrq++ < IPR_MAX_HRRQ_RETRIES); |
5531 | |
5532 | } else if (rc == IRQ_NONE && irq_none == 0) { |
5533 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
5534 | irq_none++; |
5535 | } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES && |
5536 | int_reg & IPR_PCII_HRRQ_UPDATED) { |
5537 | ipr_isr_eh(ioa_cfg, |
5538 | msg: "Error clearing HRRQ: " , number: num_hrrq); |
5539 | rc = IRQ_HANDLED; |
5540 | break; |
5541 | } else |
5542 | break; |
5543 | } |
5544 | |
5545 | if (unlikely(rc == IRQ_NONE)) |
5546 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); |
5547 | |
5548 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5549 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
5550 | list_del(entry: &ipr_cmd->queue); |
5551 | del_timer(timer: &ipr_cmd->timer); |
5552 | ipr_cmd->fast_done(ipr_cmd); |
5553 | } |
5554 | return rc; |
5555 | } |
5556 | |
5557 | /** |
5558 | * ipr_isr_mhrrq - Interrupt service routine |
5559 | * @irq: irq number |
5560 | * @devp: pointer to ioa config struct |
5561 | * |
5562 | * Return value: |
5563 | * IRQ_NONE / IRQ_HANDLED |
5564 | **/ |
5565 | static irqreturn_t ipr_isr_mhrrq(int irq, void *devp) |
5566 | { |
5567 | struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; |
5568 | struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; |
5569 | unsigned long hrrq_flags = 0; |
5570 | struct ipr_cmnd *ipr_cmd, *temp; |
5571 | irqreturn_t rc = IRQ_NONE; |
5572 | LIST_HEAD(doneq); |
5573 | |
5574 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
5575 | |
5576 | /* If interrupts are disabled, ignore the interrupt */ |
5577 | if (!hrrq->allow_interrupts) { |
5578 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5579 | return IRQ_NONE; |
5580 | } |
5581 | |
5582 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
5583 | if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
5584 | hrrq->toggle_bit) { |
5585 | irq_poll_sched(&hrrq->iopoll); |
5586 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5587 | return IRQ_HANDLED; |
5588 | } |
5589 | } else { |
5590 | if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
5591 | hrrq->toggle_bit) |
5592 | |
5593 | if (ipr_process_hrrq(hrr_queue: hrrq, budget: -1, doneq: &doneq)) |
5594 | rc = IRQ_HANDLED; |
5595 | } |
5596 | |
5597 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5598 | |
5599 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
5600 | list_del(entry: &ipr_cmd->queue); |
5601 | del_timer(timer: &ipr_cmd->timer); |
5602 | ipr_cmd->fast_done(ipr_cmd); |
5603 | } |
5604 | return rc; |
5605 | } |
5606 | |
5607 | /** |
5608 | * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer |
5609 | * @ioa_cfg: ioa config struct |
5610 | * @ipr_cmd: ipr command struct |
5611 | * |
5612 | * Return value: |
5613 | * 0 on success / -1 on failure |
5614 | **/ |
5615 | static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, |
5616 | struct ipr_cmnd *ipr_cmd) |
5617 | { |
5618 | int i, nseg; |
5619 | struct scatterlist *sg; |
5620 | u32 length; |
5621 | u32 ioadl_flags = 0; |
5622 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
5623 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
5624 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; |
5625 | |
5626 | length = scsi_bufflen(cmd: scsi_cmd); |
5627 | if (!length) |
5628 | return 0; |
5629 | |
5630 | nseg = scsi_dma_map(cmd: scsi_cmd); |
5631 | if (nseg < 0) { |
5632 | if (printk_ratelimit()) |
5633 | dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n" ); |
5634 | return -1; |
5635 | } |
5636 | |
5637 | ipr_cmd->dma_use_sg = nseg; |
5638 | |
5639 | ioarcb->data_transfer_length = cpu_to_be32(length); |
5640 | ioarcb->ioadl_len = |
5641 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); |
5642 | |
5643 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
5644 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
5645 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
5646 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) |
5647 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
5648 | |
5649 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { |
5650 | ioadl64[i].flags = cpu_to_be32(ioadl_flags); |
5651 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); |
5652 | ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); |
5653 | } |
5654 | |
5655 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
5656 | return 0; |
5657 | } |
5658 | |
5659 | /** |
5660 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer |
5661 | * @ioa_cfg: ioa config struct |
5662 | * @ipr_cmd: ipr command struct |
5663 | * |
5664 | * Return value: |
5665 | * 0 on success / -1 on failure |
5666 | **/ |
5667 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, |
5668 | struct ipr_cmnd *ipr_cmd) |
5669 | { |
5670 | int i, nseg; |
5671 | struct scatterlist *sg; |
5672 | u32 length; |
5673 | u32 ioadl_flags = 0; |
5674 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
5675 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
5676 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
5677 | |
5678 | length = scsi_bufflen(cmd: scsi_cmd); |
5679 | if (!length) |
5680 | return 0; |
5681 | |
5682 | nseg = scsi_dma_map(cmd: scsi_cmd); |
5683 | if (nseg < 0) { |
5684 | dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n" ); |
5685 | return -1; |
5686 | } |
5687 | |
5688 | ipr_cmd->dma_use_sg = nseg; |
5689 | |
5690 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
5691 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
5692 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
5693 | ioarcb->data_transfer_length = cpu_to_be32(length); |
5694 | ioarcb->ioadl_len = |
5695 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
5696 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { |
5697 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
5698 | ioarcb->read_data_transfer_length = cpu_to_be32(length); |
5699 | ioarcb->read_ioadl_len = |
5700 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
5701 | } |
5702 | |
5703 | if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { |
5704 | ioadl = ioarcb->u.add_data.u.ioadl; |
5705 | ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + |
5706 | offsetof(struct ipr_ioarcb, u.add_data)); |
5707 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
5708 | } |
5709 | |
5710 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { |
5711 | ioadl[i].flags_and_data_len = |
5712 | cpu_to_be32(ioadl_flags | sg_dma_len(sg)); |
5713 | ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); |
5714 | } |
5715 | |
5716 | ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
5717 | return 0; |
5718 | } |
5719 | |
5720 | /** |
5721 | * __ipr_erp_done - Process completion of ERP for a device |
5722 | * @ipr_cmd: ipr command struct |
5723 | * |
5724 | * This function copies the sense buffer into the scsi_cmd |
5725 | * struct and pushes the scsi_done function. |
5726 | * |
5727 | * Return value: |
5728 | * nothing |
5729 | **/ |
5730 | static void __ipr_erp_done(struct ipr_cmnd *ipr_cmd) |
5731 | { |
5732 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
5733 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
5734 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5735 | |
5736 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { |
5737 | scsi_cmd->result |= (DID_ERROR << 16); |
5738 | scmd_printk(KERN_ERR, scsi_cmd, |
5739 | "Request Sense failed with IOASC: 0x%08X\n" , ioasc); |
5740 | } else { |
5741 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, |
5742 | SCSI_SENSE_BUFFERSIZE); |
5743 | } |
5744 | |
5745 | if (res) { |
5746 | if (!ipr_is_naca_model(res)) |
5747 | res->needs_sync_complete = 1; |
5748 | res->in_erp = 0; |
5749 | } |
5750 | scsi_dma_unmap(cmd: ipr_cmd->scsi_cmd); |
5751 | scsi_done(cmd: scsi_cmd); |
5752 | if (ipr_cmd->eh_comp) |
5753 | complete(ipr_cmd->eh_comp); |
5754 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
5755 | } |
5756 | |
5757 | /** |
5758 | * ipr_erp_done - Process completion of ERP for a device |
5759 | * @ipr_cmd: ipr command struct |
5760 | * |
5761 | * This function copies the sense buffer into the scsi_cmd |
5762 | * struct and pushes the scsi_done function. |
5763 | * |
5764 | * Return value: |
5765 | * nothing |
5766 | **/ |
5767 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) |
5768 | { |
5769 | struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; |
5770 | unsigned long hrrq_flags; |
5771 | |
5772 | spin_lock_irqsave(&hrrq->_lock, hrrq_flags); |
5773 | __ipr_erp_done(ipr_cmd); |
5774 | spin_unlock_irqrestore(lock: &hrrq->_lock, flags: hrrq_flags); |
5775 | } |
5776 | |
5777 | /** |
5778 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP |
5779 | * @ipr_cmd: ipr command struct |
5780 | * |
5781 | * Return value: |
5782 | * none |
5783 | **/ |
5784 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) |
5785 | { |
5786 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
5787 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
5788 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
5789 | |
5790 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); |
5791 | ioarcb->data_transfer_length = 0; |
5792 | ioarcb->read_data_transfer_length = 0; |
5793 | ioarcb->ioadl_len = 0; |
5794 | ioarcb->read_ioadl_len = 0; |
5795 | ioasa->hdr.ioasc = 0; |
5796 | ioasa->hdr.residual_data_len = 0; |
5797 | |
5798 | if (ipr_cmd->ioa_cfg->sis64) |
5799 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
5800 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); |
5801 | else { |
5802 | ioarcb->write_ioadl_addr = |
5803 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); |
5804 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
5805 | } |
5806 | } |
5807 | |
5808 | /** |
5809 | * __ipr_erp_request_sense - Send request sense to a device |
5810 | * @ipr_cmd: ipr command struct |
5811 | * |
5812 | * This function sends a request sense to a device as a result |
5813 | * of a check condition. |
5814 | * |
5815 | * Return value: |
5816 | * nothing |
5817 | **/ |
5818 | static void __ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) |
5819 | { |
5820 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
5821 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5822 | |
5823 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { |
5824 | __ipr_erp_done(ipr_cmd); |
5825 | return; |
5826 | } |
5827 | |
5828 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); |
5829 | |
5830 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; |
5831 | cmd_pkt->cdb[0] = REQUEST_SENSE; |
5832 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; |
5833 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; |
5834 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
5835 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); |
5836 | |
5837 | ipr_init_ioadl(ipr_cmd, dma_addr: ipr_cmd->sense_buffer_dma, |
5838 | SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); |
5839 | |
5840 | ipr_do_req(ipr_cmd, done: ipr_erp_done, timeout_func: ipr_timeout, |
5841 | IPR_REQUEST_SENSE_TIMEOUT * 2); |
5842 | } |
5843 | |
5844 | /** |
5845 | * ipr_erp_request_sense - Send request sense to a device |
5846 | * @ipr_cmd: ipr command struct |
5847 | * |
5848 | * This function sends a request sense to a device as a result |
5849 | * of a check condition. |
5850 | * |
5851 | * Return value: |
5852 | * nothing |
5853 | **/ |
5854 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) |
5855 | { |
5856 | struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; |
5857 | unsigned long hrrq_flags; |
5858 | |
5859 | spin_lock_irqsave(&hrrq->_lock, hrrq_flags); |
5860 | __ipr_erp_request_sense(ipr_cmd); |
5861 | spin_unlock_irqrestore(lock: &hrrq->_lock, flags: hrrq_flags); |
5862 | } |
5863 | |
5864 | /** |
5865 | * ipr_erp_cancel_all - Send cancel all to a device |
5866 | * @ipr_cmd: ipr command struct |
5867 | * |
5868 | * This function sends a cancel all to a device to clear the |
5869 | * queue. If we are running TCQ on the device, QERR is set to 1, |
5870 | * which means all outstanding ops have been dropped on the floor. |
5871 | * Cancel all will return them to us. |
5872 | * |
5873 | * Return value: |
5874 | * nothing |
5875 | **/ |
5876 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) |
5877 | { |
5878 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
5879 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
5880 | struct ipr_cmd_pkt *cmd_pkt; |
5881 | |
5882 | res->in_erp = 1; |
5883 | |
5884 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); |
5885 | |
5886 | if (!scsi_cmd->device->simple_tags) { |
5887 | __ipr_erp_request_sense(ipr_cmd); |
5888 | return; |
5889 | } |
5890 | |
5891 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
5892 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
5893 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; |
5894 | |
5895 | ipr_do_req(ipr_cmd, done: ipr_erp_request_sense, timeout_func: ipr_timeout, |
5896 | IPR_CANCEL_ALL_TIMEOUT); |
5897 | } |
5898 | |
5899 | /** |
5900 | * ipr_dump_ioasa - Dump contents of IOASA |
5901 | * @ioa_cfg: ioa config struct |
5902 | * @ipr_cmd: ipr command struct |
5903 | * @res: resource entry struct |
5904 | * |
5905 | * This function is invoked by the interrupt handler when ops |
5906 | * fail. It will log the IOASA if appropriate. Only called |
5907 | * for GPDD ops. |
5908 | * |
5909 | * Return value: |
5910 | * none |
5911 | **/ |
5912 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, |
5913 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
5914 | { |
5915 | int i; |
5916 | u16 data_len; |
5917 | u32 ioasc, fd_ioasc; |
5918 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
5919 | __be32 *ioasa_data = (__be32 *)ioasa; |
5920 | int error_index; |
5921 | |
5922 | ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; |
5923 | fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; |
5924 | |
5925 | if (0 == ioasc) |
5926 | return; |
5927 | |
5928 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) |
5929 | return; |
5930 | |
5931 | if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) |
5932 | error_index = ipr_get_error(ioasc: fd_ioasc); |
5933 | else |
5934 | error_index = ipr_get_error(ioasc); |
5935 | |
5936 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { |
5937 | /* Don't log an error if the IOA already logged one */ |
5938 | if (ioasa->hdr.ilid != 0) |
5939 | return; |
5940 | |
5941 | if (!ipr_is_gscsi(res)) |
5942 | return; |
5943 | |
5944 | if (ipr_error_table[error_index].log_ioasa == 0) |
5945 | return; |
5946 | } |
5947 | |
5948 | ipr_res_err(ioa_cfg, res, "%s\n" , ipr_error_table[error_index].error); |
5949 | |
5950 | data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); |
5951 | if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) |
5952 | data_len = sizeof(struct ipr_ioasa64); |
5953 | else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) |
5954 | data_len = sizeof(struct ipr_ioasa); |
5955 | |
5956 | ipr_err("IOASA Dump:\n" ); |
5957 | |
5958 | for (i = 0; i < data_len / 4; i += 4) { |
5959 | ipr_err("%08X: %08X %08X %08X %08X\n" , i*4, |
5960 | be32_to_cpu(ioasa_data[i]), |
5961 | be32_to_cpu(ioasa_data[i+1]), |
5962 | be32_to_cpu(ioasa_data[i+2]), |
5963 | be32_to_cpu(ioasa_data[i+3])); |
5964 | } |
5965 | } |
5966 | |
5967 | /** |
5968 | * ipr_gen_sense - Generate SCSI sense data from an IOASA |
5969 | * @ipr_cmd: ipr command struct |
5970 | * |
5971 | * Return value: |
5972 | * none |
5973 | **/ |
5974 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) |
5975 | { |
5976 | u32 failing_lba; |
5977 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; |
5978 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; |
5979 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
5980 | u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); |
5981 | |
5982 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); |
5983 | |
5984 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) |
5985 | return; |
5986 | |
5987 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; |
5988 | |
5989 | if (ipr_is_vset_device(res) && |
5990 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && |
5991 | ioasa->u.vset.failing_lba_hi != 0) { |
5992 | sense_buf[0] = 0x72; |
5993 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); |
5994 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); |
5995 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); |
5996 | |
5997 | sense_buf[7] = 12; |
5998 | sense_buf[8] = 0; |
5999 | sense_buf[9] = 0x0A; |
6000 | sense_buf[10] = 0x80; |
6001 | |
6002 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); |
6003 | |
6004 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; |
6005 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; |
6006 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; |
6007 | sense_buf[15] = failing_lba & 0x000000ff; |
6008 | |
6009 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); |
6010 | |
6011 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; |
6012 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; |
6013 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; |
6014 | sense_buf[19] = failing_lba & 0x000000ff; |
6015 | } else { |
6016 | sense_buf[0] = 0x70; |
6017 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); |
6018 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); |
6019 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); |
6020 | |
6021 | /* Illegal request */ |
6022 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && |
6023 | (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { |
6024 | sense_buf[7] = 10; /* additional length */ |
6025 | |
6026 | /* IOARCB was in error */ |
6027 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) |
6028 | sense_buf[15] = 0xC0; |
6029 | else /* Parameter data was invalid */ |
6030 | sense_buf[15] = 0x80; |
6031 | |
6032 | sense_buf[16] = |
6033 | ((IPR_FIELD_POINTER_MASK & |
6034 | be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; |
6035 | sense_buf[17] = |
6036 | (IPR_FIELD_POINTER_MASK & |
6037 | be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; |
6038 | } else { |
6039 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { |
6040 | if (ipr_is_vset_device(res)) |
6041 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); |
6042 | else |
6043 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); |
6044 | |
6045 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ |
6046 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; |
6047 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; |
6048 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; |
6049 | sense_buf[6] = failing_lba & 0x000000ff; |
6050 | } |
6051 | |
6052 | sense_buf[7] = 6; /* additional length */ |
6053 | } |
6054 | } |
6055 | } |
6056 | |
6057 | /** |
6058 | * ipr_get_autosense - Copy autosense data to sense buffer |
6059 | * @ipr_cmd: ipr command struct |
6060 | * |
6061 | * This function copies the autosense buffer to the buffer |
6062 | * in the scsi_cmd, if there is autosense available. |
6063 | * |
6064 | * Return value: |
6065 | * 1 if autosense was available / 0 if not |
6066 | **/ |
6067 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) |
6068 | { |
6069 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
6070 | struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; |
6071 | |
6072 | if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) |
6073 | return 0; |
6074 | |
6075 | if (ipr_cmd->ioa_cfg->sis64) |
6076 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, |
6077 | min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), |
6078 | SCSI_SENSE_BUFFERSIZE)); |
6079 | else |
6080 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, |
6081 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), |
6082 | SCSI_SENSE_BUFFERSIZE)); |
6083 | return 1; |
6084 | } |
6085 | |
6086 | /** |
6087 | * ipr_erp_start - Process an error response for a SCSI op |
6088 | * @ioa_cfg: ioa config struct |
6089 | * @ipr_cmd: ipr command struct |
6090 | * |
6091 | * This function determines whether or not to initiate ERP |
6092 | * on the affected device. |
6093 | * |
6094 | * Return value: |
6095 | * nothing |
6096 | **/ |
6097 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, |
6098 | struct ipr_cmnd *ipr_cmd) |
6099 | { |
6100 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
6101 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
6102 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6103 | u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; |
6104 | |
6105 | if (!res) { |
6106 | __ipr_scsi_eh_done(ipr_cmd); |
6107 | return; |
6108 | } |
6109 | |
6110 | if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) |
6111 | ipr_gen_sense(ipr_cmd); |
6112 | |
6113 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
6114 | |
6115 | switch (masked_ioasc) { |
6116 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: |
6117 | if (ipr_is_naca_model(res)) |
6118 | scsi_cmd->result |= (DID_ABORT << 16); |
6119 | else |
6120 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
6121 | break; |
6122 | case IPR_IOASC_IR_RESOURCE_HANDLE: |
6123 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
6124 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
6125 | break; |
6126 | case IPR_IOASC_HW_SEL_TIMEOUT: |
6127 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
6128 | if (!ipr_is_naca_model(res)) |
6129 | res->needs_sync_complete = 1; |
6130 | break; |
6131 | case IPR_IOASC_SYNC_REQUIRED: |
6132 | if (!res->in_erp) |
6133 | res->needs_sync_complete = 1; |
6134 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
6135 | break; |
6136 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ |
6137 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
6138 | /* |
6139 | * exception: do not set DID_PASSTHROUGH on CHECK CONDITION |
6140 | * so SCSI mid-layer and upper layers handle it accordingly. |
6141 | */ |
6142 | if (scsi_cmd->result != SAM_STAT_CHECK_CONDITION) |
6143 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
6144 | break; |
6145 | case IPR_IOASC_BUS_WAS_RESET: |
6146 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: |
6147 | /* |
6148 | * Report the bus reset and ask for a retry. The device |
6149 | * will give CC/UA the next command. |
6150 | */ |
6151 | if (!res->resetting_device) |
6152 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); |
6153 | scsi_cmd->result |= (DID_ERROR << 16); |
6154 | if (!ipr_is_naca_model(res)) |
6155 | res->needs_sync_complete = 1; |
6156 | break; |
6157 | case IPR_IOASC_HW_DEV_BUS_STATUS: |
6158 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); |
6159 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { |
6160 | if (!ipr_get_autosense(ipr_cmd)) { |
6161 | if (!ipr_is_naca_model(res)) { |
6162 | ipr_erp_cancel_all(ipr_cmd); |
6163 | return; |
6164 | } |
6165 | } |
6166 | } |
6167 | if (!ipr_is_naca_model(res)) |
6168 | res->needs_sync_complete = 1; |
6169 | break; |
6170 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: |
6171 | break; |
6172 | case IPR_IOASC_IR_NON_OPTIMIZED: |
6173 | if (res->raw_mode) { |
6174 | res->raw_mode = 0; |
6175 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
6176 | } else |
6177 | scsi_cmd->result |= (DID_ERROR << 16); |
6178 | break; |
6179 | default: |
6180 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) |
6181 | scsi_cmd->result |= (DID_ERROR << 16); |
6182 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
6183 | res->needs_sync_complete = 1; |
6184 | break; |
6185 | } |
6186 | |
6187 | scsi_dma_unmap(cmd: ipr_cmd->scsi_cmd); |
6188 | scsi_done(cmd: scsi_cmd); |
6189 | if (ipr_cmd->eh_comp) |
6190 | complete(ipr_cmd->eh_comp); |
6191 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6192 | } |
6193 | |
6194 | /** |
6195 | * ipr_scsi_done - mid-layer done function |
6196 | * @ipr_cmd: ipr command struct |
6197 | * |
6198 | * This function is invoked by the interrupt handler for |
6199 | * ops generated by the SCSI mid-layer |
6200 | * |
6201 | * Return value: |
6202 | * none |
6203 | **/ |
6204 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) |
6205 | { |
6206 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6207 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
6208 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6209 | unsigned long lock_flags; |
6210 | |
6211 | scsi_set_resid(cmd: scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); |
6212 | |
6213 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { |
6214 | scsi_dma_unmap(cmd: scsi_cmd); |
6215 | |
6216 | spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags); |
6217 | scsi_done(cmd: scsi_cmd); |
6218 | if (ipr_cmd->eh_comp) |
6219 | complete(ipr_cmd->eh_comp); |
6220 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6221 | spin_unlock_irqrestore(lock: ipr_cmd->hrrq->lock, flags: lock_flags); |
6222 | } else { |
6223 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
6224 | spin_lock(lock: &ipr_cmd->hrrq->_lock); |
6225 | ipr_erp_start(ioa_cfg, ipr_cmd); |
6226 | spin_unlock(lock: &ipr_cmd->hrrq->_lock); |
6227 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
6228 | } |
6229 | } |
6230 | |
6231 | /** |
6232 | * ipr_queuecommand - Queue a mid-layer request |
6233 | * @shost: scsi host struct |
6234 | * @scsi_cmd: scsi command struct |
6235 | * |
6236 | * This function queues a request generated by the mid-layer. |
6237 | * |
6238 | * Return value: |
6239 | * 0 on success |
6240 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy |
6241 | * SCSI_MLQUEUE_HOST_BUSY if host is busy |
6242 | **/ |
6243 | static int ipr_queuecommand(struct Scsi_Host *shost, |
6244 | struct scsi_cmnd *scsi_cmd) |
6245 | { |
6246 | struct ipr_ioa_cfg *ioa_cfg; |
6247 | struct ipr_resource_entry *res; |
6248 | struct ipr_ioarcb *ioarcb; |
6249 | struct ipr_cmnd *ipr_cmd; |
6250 | unsigned long hrrq_flags; |
6251 | int rc; |
6252 | struct ipr_hrr_queue *hrrq; |
6253 | int hrrq_id; |
6254 | |
6255 | ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
6256 | |
6257 | scsi_cmd->result = (DID_OK << 16); |
6258 | res = scsi_cmd->device->hostdata; |
6259 | |
6260 | hrrq_id = ipr_get_hrrq_index(ioa_cfg); |
6261 | hrrq = &ioa_cfg->hrrq[hrrq_id]; |
6262 | |
6263 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
6264 | /* |
6265 | * We are currently blocking all devices due to a host reset |
6266 | * We have told the host to stop giving us new requests, but |
6267 | * ERP ops don't count. FIXME |
6268 | */ |
6269 | if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) { |
6270 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6271 | return SCSI_MLQUEUE_HOST_BUSY; |
6272 | } |
6273 | |
6274 | /* |
6275 | * FIXME - Create scsi_set_host_offline interface |
6276 | * and the ioa_is_dead check can be removed |
6277 | */ |
6278 | if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) { |
6279 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6280 | goto err_nodev; |
6281 | } |
6282 | |
6283 | ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq); |
6284 | if (ipr_cmd == NULL) { |
6285 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6286 | return SCSI_MLQUEUE_HOST_BUSY; |
6287 | } |
6288 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6289 | |
6290 | ipr_init_ipr_cmnd(ipr_cmd, fast_done: ipr_scsi_done); |
6291 | ioarcb = &ipr_cmd->ioarcb; |
6292 | |
6293 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); |
6294 | ipr_cmd->scsi_cmd = scsi_cmd; |
6295 | ipr_cmd->done = ipr_scsi_eh_done; |
6296 | |
6297 | if (ipr_is_gscsi(res)) { |
6298 | if (scsi_cmd->underflow == 0) |
6299 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
6300 | |
6301 | if (res->reset_occurred) { |
6302 | res->reset_occurred = 0; |
6303 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; |
6304 | } |
6305 | } |
6306 | |
6307 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { |
6308 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; |
6309 | |
6310 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; |
6311 | if (scsi_cmd->flags & SCMD_TAGGED) |
6312 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK; |
6313 | else |
6314 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK; |
6315 | } |
6316 | |
6317 | if (scsi_cmd->cmnd[0] >= 0xC0 && |
6318 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) { |
6319 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
6320 | } |
6321 | if (res->raw_mode && ipr_is_af_dasd_device(res)) { |
6322 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE; |
6323 | |
6324 | if (scsi_cmd->underflow == 0) |
6325 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
6326 | } |
6327 | |
6328 | if (ioa_cfg->sis64) |
6329 | rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); |
6330 | else |
6331 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); |
6332 | |
6333 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
6334 | if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) { |
6335 | list_add_tail(new: &ipr_cmd->queue, head: &hrrq->hrrq_free_q); |
6336 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6337 | if (!rc) |
6338 | scsi_dma_unmap(cmd: scsi_cmd); |
6339 | return SCSI_MLQUEUE_HOST_BUSY; |
6340 | } |
6341 | |
6342 | if (unlikely(hrrq->ioa_is_dead)) { |
6343 | list_add_tail(new: &ipr_cmd->queue, head: &hrrq->hrrq_free_q); |
6344 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6345 | scsi_dma_unmap(cmd: scsi_cmd); |
6346 | goto err_nodev; |
6347 | } |
6348 | |
6349 | ioarcb->res_handle = res->res_handle; |
6350 | if (res->needs_sync_complete) { |
6351 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; |
6352 | res->needs_sync_complete = 0; |
6353 | } |
6354 | list_add_tail(new: &ipr_cmd->queue, head: &hrrq->hrrq_pending_q); |
6355 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); |
6356 | ipr_send_command(ipr_cmd); |
6357 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6358 | return 0; |
6359 | |
6360 | err_nodev: |
6361 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
6362 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
6363 | scsi_cmd->result = (DID_NO_CONNECT << 16); |
6364 | scsi_done(cmd: scsi_cmd); |
6365 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6366 | return 0; |
6367 | } |
6368 | |
6369 | /** |
6370 | * ipr_ioa_info - Get information about the card/driver |
6371 | * @host: scsi host struct |
6372 | * |
6373 | * Return value: |
6374 | * pointer to buffer with description string |
6375 | **/ |
6376 | static const char *ipr_ioa_info(struct Scsi_Host *host) |
6377 | { |
6378 | static char buffer[512]; |
6379 | struct ipr_ioa_cfg *ioa_cfg; |
6380 | unsigned long lock_flags = 0; |
6381 | |
6382 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; |
6383 | |
6384 | spin_lock_irqsave(host->host_lock, lock_flags); |
6385 | sprintf(buf: buffer, fmt: "IBM %X Storage Adapter" , ioa_cfg->type); |
6386 | spin_unlock_irqrestore(lock: host->host_lock, flags: lock_flags); |
6387 | |
6388 | return buffer; |
6389 | } |
6390 | |
6391 | static const struct scsi_host_template driver_template = { |
6392 | .module = THIS_MODULE, |
6393 | .name = "IPR" , |
6394 | .info = ipr_ioa_info, |
6395 | .queuecommand = ipr_queuecommand, |
6396 | .eh_abort_handler = ipr_eh_abort, |
6397 | .eh_device_reset_handler = ipr_eh_dev_reset, |
6398 | .eh_host_reset_handler = ipr_eh_host_reset, |
6399 | .slave_alloc = ipr_slave_alloc, |
6400 | .slave_configure = ipr_slave_configure, |
6401 | .slave_destroy = ipr_slave_destroy, |
6402 | .scan_finished = ipr_scan_finished, |
6403 | .target_destroy = ipr_target_destroy, |
6404 | .change_queue_depth = ipr_change_queue_depth, |
6405 | .bios_param = ipr_biosparam, |
6406 | .can_queue = IPR_MAX_COMMANDS, |
6407 | .this_id = -1, |
6408 | .sg_tablesize = IPR_MAX_SGLIST, |
6409 | .max_sectors = IPR_IOA_MAX_SECTORS, |
6410 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, |
6411 | .shost_groups = ipr_ioa_groups, |
6412 | .sdev_groups = ipr_dev_groups, |
6413 | .proc_name = IPR_NAME, |
6414 | }; |
6415 | |
6416 | /** |
6417 | * ipr_ioa_bringdown_done - IOA bring down completion. |
6418 | * @ipr_cmd: ipr command struct |
6419 | * |
6420 | * This function processes the completion of an adapter bring down. |
6421 | * It wakes any reset sleepers. |
6422 | * |
6423 | * Return value: |
6424 | * IPR_RC_JOB_RETURN |
6425 | **/ |
6426 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) |
6427 | { |
6428 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6429 | int i; |
6430 | |
6431 | ENTER; |
6432 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
6433 | ipr_trace; |
6434 | ioa_cfg->scsi_unblock = 1; |
6435 | schedule_work(work: &ioa_cfg->work_q); |
6436 | } |
6437 | |
6438 | ioa_cfg->in_reset_reload = 0; |
6439 | ioa_cfg->reset_retries = 0; |
6440 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
6441 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
6442 | ioa_cfg->hrrq[i].ioa_is_dead = 1; |
6443 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
6444 | } |
6445 | wmb(); |
6446 | |
6447 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6448 | wake_up_all(&ioa_cfg->reset_wait_q); |
6449 | LEAVE; |
6450 | |
6451 | return IPR_RC_JOB_RETURN; |
6452 | } |
6453 | |
6454 | /** |
6455 | * ipr_ioa_reset_done - IOA reset completion. |
6456 | * @ipr_cmd: ipr command struct |
6457 | * |
6458 | * This function processes the completion of an adapter reset. |
6459 | * It schedules any necessary mid-layer add/removes and |
6460 | * wakes any reset sleepers. |
6461 | * |
6462 | * Return value: |
6463 | * IPR_RC_JOB_RETURN |
6464 | **/ |
6465 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) |
6466 | { |
6467 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6468 | struct ipr_resource_entry *res; |
6469 | int j; |
6470 | |
6471 | ENTER; |
6472 | ioa_cfg->in_reset_reload = 0; |
6473 | for (j = 0; j < ioa_cfg->hrrq_num; j++) { |
6474 | spin_lock(lock: &ioa_cfg->hrrq[j]._lock); |
6475 | ioa_cfg->hrrq[j].allow_cmds = 1; |
6476 | spin_unlock(lock: &ioa_cfg->hrrq[j]._lock); |
6477 | } |
6478 | wmb(); |
6479 | ioa_cfg->reset_cmd = NULL; |
6480 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
6481 | |
6482 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
6483 | if (res->add_to_ml || res->del_from_ml) { |
6484 | ipr_trace; |
6485 | break; |
6486 | } |
6487 | } |
6488 | schedule_work(work: &ioa_cfg->work_q); |
6489 | |
6490 | for (j = 0; j < IPR_NUM_HCAMS; j++) { |
6491 | list_del_init(entry: &ioa_cfg->hostrcb[j]->queue); |
6492 | if (j < IPR_NUM_LOG_HCAMS) |
6493 | ipr_send_hcam(ioa_cfg, |
6494 | IPR_HCAM_CDB_OP_CODE_LOG_DATA, |
6495 | hostrcb: ioa_cfg->hostrcb[j]); |
6496 | else |
6497 | ipr_send_hcam(ioa_cfg, |
6498 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, |
6499 | hostrcb: ioa_cfg->hostrcb[j]); |
6500 | } |
6501 | |
6502 | scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); |
6503 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n" ); |
6504 | |
6505 | ioa_cfg->reset_retries = 0; |
6506 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6507 | wake_up_all(&ioa_cfg->reset_wait_q); |
6508 | |
6509 | ioa_cfg->scsi_unblock = 1; |
6510 | schedule_work(work: &ioa_cfg->work_q); |
6511 | LEAVE; |
6512 | return IPR_RC_JOB_RETURN; |
6513 | } |
6514 | |
6515 | /** |
6516 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer |
6517 | * @supported_dev: supported device struct |
6518 | * @vpids: vendor product id struct |
6519 | * |
6520 | * Return value: |
6521 | * none |
6522 | **/ |
6523 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, |
6524 | struct ipr_std_inq_vpids *vpids) |
6525 | { |
6526 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); |
6527 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); |
6528 | supported_dev->num_records = 1; |
6529 | supported_dev->data_length = |
6530 | cpu_to_be16(sizeof(struct ipr_supported_device)); |
6531 | supported_dev->reserved = 0; |
6532 | } |
6533 | |
6534 | /** |
6535 | * ipr_set_supported_devs - Send Set Supported Devices for a device |
6536 | * @ipr_cmd: ipr command struct |
6537 | * |
6538 | * This function sends a Set Supported Devices to the adapter |
6539 | * |
6540 | * Return value: |
6541 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
6542 | **/ |
6543 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) |
6544 | { |
6545 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6546 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; |
6547 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
6548 | struct ipr_resource_entry *res = ipr_cmd->u.res; |
6549 | |
6550 | ipr_cmd->job_step = ipr_ioa_reset_done; |
6551 | |
6552 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { |
6553 | if (!ipr_is_scsi_disk(res)) |
6554 | continue; |
6555 | |
6556 | ipr_cmd->u.res = res; |
6557 | ipr_set_sup_dev_dflt(supported_dev: supp_dev, vpids: &res->std_inq_data.vpids); |
6558 | |
6559 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
6560 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
6561 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
6562 | |
6563 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; |
6564 | ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; |
6565 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; |
6566 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; |
6567 | |
6568 | ipr_init_ioadl(ipr_cmd, |
6569 | dma_addr: ioa_cfg->vpd_cbs_dma + |
6570 | offsetof(struct ipr_misc_cbs, supp_dev), |
6571 | len: sizeof(struct ipr_supported_device), |
6572 | IPR_IOADL_FLAGS_WRITE_LAST); |
6573 | |
6574 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
6575 | IPR_SET_SUP_DEVICE_TIMEOUT); |
6576 | |
6577 | if (!ioa_cfg->sis64) |
6578 | ipr_cmd->job_step = ipr_set_supported_devs; |
6579 | LEAVE; |
6580 | return IPR_RC_JOB_RETURN; |
6581 | } |
6582 | |
6583 | LEAVE; |
6584 | return IPR_RC_JOB_CONTINUE; |
6585 | } |
6586 | |
6587 | /** |
6588 | * ipr_get_mode_page - Locate specified mode page |
6589 | * @mode_pages: mode page buffer |
6590 | * @page_code: page code to find |
6591 | * @len: minimum required length for mode page |
6592 | * |
6593 | * Return value: |
6594 | * pointer to mode page / NULL on failure |
6595 | **/ |
6596 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, |
6597 | u32 page_code, u32 len) |
6598 | { |
6599 | struct ipr_mode_page_hdr *mode_hdr; |
6600 | u32 page_length; |
6601 | u32 length; |
6602 | |
6603 | if (!mode_pages || (mode_pages->hdr.length == 0)) |
6604 | return NULL; |
6605 | |
6606 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; |
6607 | mode_hdr = (struct ipr_mode_page_hdr *) |
6608 | (mode_pages->data + mode_pages->hdr.block_desc_len); |
6609 | |
6610 | while (length) { |
6611 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { |
6612 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) |
6613 | return mode_hdr; |
6614 | break; |
6615 | } else { |
6616 | page_length = (sizeof(struct ipr_mode_page_hdr) + |
6617 | mode_hdr->page_length); |
6618 | length -= page_length; |
6619 | mode_hdr = (struct ipr_mode_page_hdr *) |
6620 | ((unsigned long)mode_hdr + page_length); |
6621 | } |
6622 | } |
6623 | return NULL; |
6624 | } |
6625 | |
6626 | /** |
6627 | * ipr_check_term_power - Check for term power errors |
6628 | * @ioa_cfg: ioa config struct |
6629 | * @mode_pages: IOAFP mode pages buffer |
6630 | * |
6631 | * Check the IOAFP's mode page 28 for term power errors |
6632 | * |
6633 | * Return value: |
6634 | * nothing |
6635 | **/ |
6636 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, |
6637 | struct ipr_mode_pages *mode_pages) |
6638 | { |
6639 | int i; |
6640 | int entry_length; |
6641 | struct ipr_dev_bus_entry *bus; |
6642 | struct ipr_mode_page28 *mode_page; |
6643 | |
6644 | mode_page = ipr_get_mode_page(mode_pages, page_code: 0x28, |
6645 | len: sizeof(struct ipr_mode_page28)); |
6646 | |
6647 | entry_length = mode_page->entry_length; |
6648 | |
6649 | bus = mode_page->bus; |
6650 | |
6651 | for (i = 0; i < mode_page->num_entries; i++) { |
6652 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { |
6653 | dev_err(&ioa_cfg->pdev->dev, |
6654 | "Term power is absent on scsi bus %d\n" , |
6655 | bus->res_addr.bus); |
6656 | } |
6657 | |
6658 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); |
6659 | } |
6660 | } |
6661 | |
6662 | /** |
6663 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table |
6664 | * @ioa_cfg: ioa config struct |
6665 | * |
6666 | * Looks through the config table checking for SES devices. If |
6667 | * the SES device is in the SES table indicating a maximum SCSI |
6668 | * bus speed, the speed is limited for the bus. |
6669 | * |
6670 | * Return value: |
6671 | * none |
6672 | **/ |
6673 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) |
6674 | { |
6675 | u32 max_xfer_rate; |
6676 | int i; |
6677 | |
6678 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { |
6679 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, bus: i, |
6680 | bus_width: ioa_cfg->bus_attr[i].bus_width); |
6681 | |
6682 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) |
6683 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; |
6684 | } |
6685 | } |
6686 | |
6687 | /** |
6688 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 |
6689 | * @ioa_cfg: ioa config struct |
6690 | * @mode_pages: mode page 28 buffer |
6691 | * |
6692 | * Updates mode page 28 based on driver configuration |
6693 | * |
6694 | * Return value: |
6695 | * none |
6696 | **/ |
6697 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, |
6698 | struct ipr_mode_pages *mode_pages) |
6699 | { |
6700 | int i, entry_length; |
6701 | struct ipr_dev_bus_entry *bus; |
6702 | struct ipr_bus_attributes *bus_attr; |
6703 | struct ipr_mode_page28 *mode_page; |
6704 | |
6705 | mode_page = ipr_get_mode_page(mode_pages, page_code: 0x28, |
6706 | len: sizeof(struct ipr_mode_page28)); |
6707 | |
6708 | entry_length = mode_page->entry_length; |
6709 | |
6710 | /* Loop for each device bus entry */ |
6711 | for (i = 0, bus = mode_page->bus; |
6712 | i < mode_page->num_entries; |
6713 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { |
6714 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { |
6715 | dev_err(&ioa_cfg->pdev->dev, |
6716 | "Invalid resource address reported: 0x%08X\n" , |
6717 | IPR_GET_PHYS_LOC(bus->res_addr)); |
6718 | continue; |
6719 | } |
6720 | |
6721 | bus_attr = &ioa_cfg->bus_attr[i]; |
6722 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; |
6723 | bus->bus_width = bus_attr->bus_width; |
6724 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); |
6725 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; |
6726 | if (bus_attr->qas_enabled) |
6727 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; |
6728 | else |
6729 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; |
6730 | } |
6731 | } |
6732 | |
6733 | /** |
6734 | * ipr_build_mode_select - Build a mode select command |
6735 | * @ipr_cmd: ipr command struct |
6736 | * @res_handle: resource handle to send command to |
6737 | * @parm: Byte 2 of Mode Sense command |
6738 | * @dma_addr: DMA buffer address |
6739 | * @xfer_len: data transfer length |
6740 | * |
6741 | * Return value: |
6742 | * none |
6743 | **/ |
6744 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, |
6745 | __be32 res_handle, u8 parm, |
6746 | dma_addr_t dma_addr, u8 xfer_len) |
6747 | { |
6748 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
6749 | |
6750 | ioarcb->res_handle = res_handle; |
6751 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
6752 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
6753 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; |
6754 | ioarcb->cmd_pkt.cdb[1] = parm; |
6755 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
6756 | |
6757 | ipr_init_ioadl(ipr_cmd, dma_addr, len: xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); |
6758 | } |
6759 | |
6760 | /** |
6761 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA |
6762 | * @ipr_cmd: ipr command struct |
6763 | * |
6764 | * This function sets up the SCSI bus attributes and sends |
6765 | * a Mode Select for Page 28 to activate them. |
6766 | * |
6767 | * Return value: |
6768 | * IPR_RC_JOB_RETURN |
6769 | **/ |
6770 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) |
6771 | { |
6772 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6773 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; |
6774 | int length; |
6775 | |
6776 | ENTER; |
6777 | ipr_scsi_bus_speed_limit(ioa_cfg); |
6778 | ipr_check_term_power(ioa_cfg, mode_pages); |
6779 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); |
6780 | length = mode_pages->hdr.length + 1; |
6781 | mode_pages->hdr.length = 0; |
6782 | |
6783 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), parm: 0x11, |
6784 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), |
6785 | xfer_len: length); |
6786 | |
6787 | ipr_cmd->job_step = ipr_set_supported_devs; |
6788 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, |
6789 | struct ipr_resource_entry, queue); |
6790 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
6791 | |
6792 | LEAVE; |
6793 | return IPR_RC_JOB_RETURN; |
6794 | } |
6795 | |
6796 | /** |
6797 | * ipr_build_mode_sense - Builds a mode sense command |
6798 | * @ipr_cmd: ipr command struct |
6799 | * @res_handle: resource entry struct |
6800 | * @parm: Byte 2 of mode sense command |
6801 | * @dma_addr: DMA address of mode sense buffer |
6802 | * @xfer_len: Size of DMA buffer |
6803 | * |
6804 | * Return value: |
6805 | * none |
6806 | **/ |
6807 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, |
6808 | __be32 res_handle, |
6809 | u8 parm, dma_addr_t dma_addr, u8 xfer_len) |
6810 | { |
6811 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
6812 | |
6813 | ioarcb->res_handle = res_handle; |
6814 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; |
6815 | ioarcb->cmd_pkt.cdb[2] = parm; |
6816 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
6817 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
6818 | |
6819 | ipr_init_ioadl(ipr_cmd, dma_addr, len: xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
6820 | } |
6821 | |
6822 | /** |
6823 | * ipr_reset_cmd_failed - Handle failure of IOA reset command |
6824 | * @ipr_cmd: ipr command struct |
6825 | * |
6826 | * This function handles the failure of an IOA bringup command. |
6827 | * |
6828 | * Return value: |
6829 | * IPR_RC_JOB_RETURN |
6830 | **/ |
6831 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) |
6832 | { |
6833 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6834 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6835 | |
6836 | dev_err(&ioa_cfg->pdev->dev, |
6837 | "0x%02X failed with IOASC: 0x%08X\n" , |
6838 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); |
6839 | |
6840 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
6841 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6842 | return IPR_RC_JOB_RETURN; |
6843 | } |
6844 | |
6845 | /** |
6846 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense |
6847 | * @ipr_cmd: ipr command struct |
6848 | * |
6849 | * This function handles the failure of a Mode Sense to the IOAFP. |
6850 | * Some adapters do not handle all mode pages. |
6851 | * |
6852 | * Return value: |
6853 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
6854 | **/ |
6855 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) |
6856 | { |
6857 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6858 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6859 | |
6860 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { |
6861 | ipr_cmd->job_step = ipr_set_supported_devs; |
6862 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, |
6863 | struct ipr_resource_entry, queue); |
6864 | return IPR_RC_JOB_CONTINUE; |
6865 | } |
6866 | |
6867 | return ipr_reset_cmd_failed(ipr_cmd); |
6868 | } |
6869 | |
6870 | /** |
6871 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA |
6872 | * @ipr_cmd: ipr command struct |
6873 | * |
6874 | * This function send a Page 28 mode sense to the IOA to |
6875 | * retrieve SCSI bus attributes. |
6876 | * |
6877 | * Return value: |
6878 | * IPR_RC_JOB_RETURN |
6879 | **/ |
6880 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) |
6881 | { |
6882 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6883 | |
6884 | ENTER; |
6885 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), |
6886 | parm: 0x28, dma_addr: ioa_cfg->vpd_cbs_dma + |
6887 | offsetof(struct ipr_misc_cbs, mode_pages), |
6888 | xfer_len: sizeof(struct ipr_mode_pages)); |
6889 | |
6890 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; |
6891 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
6892 | |
6893 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
6894 | |
6895 | LEAVE; |
6896 | return IPR_RC_JOB_RETURN; |
6897 | } |
6898 | |
6899 | /** |
6900 | * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA |
6901 | * @ipr_cmd: ipr command struct |
6902 | * |
6903 | * This function enables dual IOA RAID support if possible. |
6904 | * |
6905 | * Return value: |
6906 | * IPR_RC_JOB_RETURN |
6907 | **/ |
6908 | static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) |
6909 | { |
6910 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6911 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; |
6912 | struct ipr_mode_page24 *mode_page; |
6913 | int length; |
6914 | |
6915 | ENTER; |
6916 | mode_page = ipr_get_mode_page(mode_pages, page_code: 0x24, |
6917 | len: sizeof(struct ipr_mode_page24)); |
6918 | |
6919 | if (mode_page) |
6920 | mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; |
6921 | |
6922 | length = mode_pages->hdr.length + 1; |
6923 | mode_pages->hdr.length = 0; |
6924 | |
6925 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), parm: 0x11, |
6926 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), |
6927 | xfer_len: length); |
6928 | |
6929 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
6930 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
6931 | |
6932 | LEAVE; |
6933 | return IPR_RC_JOB_RETURN; |
6934 | } |
6935 | |
6936 | /** |
6937 | * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense |
6938 | * @ipr_cmd: ipr command struct |
6939 | * |
6940 | * This function handles the failure of a Mode Sense to the IOAFP. |
6941 | * Some adapters do not handle all mode pages. |
6942 | * |
6943 | * Return value: |
6944 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
6945 | **/ |
6946 | static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) |
6947 | { |
6948 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6949 | |
6950 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { |
6951 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
6952 | return IPR_RC_JOB_CONTINUE; |
6953 | } |
6954 | |
6955 | return ipr_reset_cmd_failed(ipr_cmd); |
6956 | } |
6957 | |
6958 | /** |
6959 | * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA |
6960 | * @ipr_cmd: ipr command struct |
6961 | * |
6962 | * This function send a mode sense to the IOA to retrieve |
6963 | * the IOA Advanced Function Control mode page. |
6964 | * |
6965 | * Return value: |
6966 | * IPR_RC_JOB_RETURN |
6967 | **/ |
6968 | static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) |
6969 | { |
6970 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6971 | |
6972 | ENTER; |
6973 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), |
6974 | parm: 0x24, dma_addr: ioa_cfg->vpd_cbs_dma + |
6975 | offsetof(struct ipr_misc_cbs, mode_pages), |
6976 | xfer_len: sizeof(struct ipr_mode_pages)); |
6977 | |
6978 | ipr_cmd->job_step = ipr_ioafp_mode_select_page24; |
6979 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; |
6980 | |
6981 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
6982 | |
6983 | LEAVE; |
6984 | return IPR_RC_JOB_RETURN; |
6985 | } |
6986 | |
6987 | /** |
6988 | * ipr_init_res_table - Initialize the resource table |
6989 | * @ipr_cmd: ipr command struct |
6990 | * |
6991 | * This function looks through the existing resource table, comparing |
6992 | * it with the config table. This function will take care of old/new |
6993 | * devices and schedule adding/removing them from the mid-layer |
6994 | * as appropriate. |
6995 | * |
6996 | * Return value: |
6997 | * IPR_RC_JOB_CONTINUE |
6998 | **/ |
6999 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) |
7000 | { |
7001 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7002 | struct ipr_resource_entry *res, *temp; |
7003 | struct ipr_config_table_entry_wrapper cfgtew; |
7004 | int entries, found, flag, i; |
7005 | LIST_HEAD(old_res); |
7006 | |
7007 | ENTER; |
7008 | if (ioa_cfg->sis64) |
7009 | flag = ioa_cfg->u.cfg_table64->hdr64.flags; |
7010 | else |
7011 | flag = ioa_cfg->u.cfg_table->hdr.flags; |
7012 | |
7013 | if (flag & IPR_UCODE_DOWNLOAD_REQ) |
7014 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n" ); |
7015 | |
7016 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) |
7017 | list_move_tail(list: &res->queue, head: &old_res); |
7018 | |
7019 | if (ioa_cfg->sis64) |
7020 | entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); |
7021 | else |
7022 | entries = ioa_cfg->u.cfg_table->hdr.num_entries; |
7023 | |
7024 | for (i = 0; i < entries; i++) { |
7025 | if (ioa_cfg->sis64) |
7026 | cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; |
7027 | else |
7028 | cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; |
7029 | found = 0; |
7030 | |
7031 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
7032 | if (ipr_is_same_device(res, cfgtew: &cfgtew)) { |
7033 | list_move_tail(list: &res->queue, head: &ioa_cfg->used_res_q); |
7034 | found = 1; |
7035 | break; |
7036 | } |
7037 | } |
7038 | |
7039 | if (!found) { |
7040 | if (list_empty(head: &ioa_cfg->free_res_q)) { |
7041 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n" ); |
7042 | break; |
7043 | } |
7044 | |
7045 | found = 1; |
7046 | res = list_entry(ioa_cfg->free_res_q.next, |
7047 | struct ipr_resource_entry, queue); |
7048 | list_move_tail(list: &res->queue, head: &ioa_cfg->used_res_q); |
7049 | ipr_init_res_entry(res, cfgtew: &cfgtew); |
7050 | res->add_to_ml = 1; |
7051 | } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) |
7052 | res->sdev->allow_restart = 1; |
7053 | |
7054 | if (found) |
7055 | ipr_update_res_entry(res, cfgtew: &cfgtew); |
7056 | } |
7057 | |
7058 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
7059 | if (res->sdev) { |
7060 | res->del_from_ml = 1; |
7061 | res->res_handle = IPR_INVALID_RES_HANDLE; |
7062 | list_move_tail(list: &res->queue, head: &ioa_cfg->used_res_q); |
7063 | } |
7064 | } |
7065 | |
7066 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
7067 | ipr_clear_res_target(res); |
7068 | list_move_tail(list: &res->queue, head: &ioa_cfg->free_res_q); |
7069 | } |
7070 | |
7071 | if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
7072 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; |
7073 | else |
7074 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
7075 | |
7076 | LEAVE; |
7077 | return IPR_RC_JOB_CONTINUE; |
7078 | } |
7079 | |
7080 | /** |
7081 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. |
7082 | * @ipr_cmd: ipr command struct |
7083 | * |
7084 | * This function sends a Query IOA Configuration command |
7085 | * to the adapter to retrieve the IOA configuration table. |
7086 | * |
7087 | * Return value: |
7088 | * IPR_RC_JOB_RETURN |
7089 | **/ |
7090 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) |
7091 | { |
7092 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7093 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7094 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
7095 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; |
7096 | |
7097 | ENTER; |
7098 | if (cap->cap & IPR_CAP_DUAL_IOA_RAID) |
7099 | ioa_cfg->dual_raid = 1; |
7100 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n" , |
7101 | ucode_vpd->major_release, ucode_vpd->card_type, |
7102 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); |
7103 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
7104 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
7105 | |
7106 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; |
7107 | ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; |
7108 | ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; |
7109 | ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; |
7110 | |
7111 | ipr_init_ioadl(ipr_cmd, dma_addr: ioa_cfg->cfg_table_dma, len: ioa_cfg->cfg_table_size, |
7112 | IPR_IOADL_FLAGS_READ_LAST); |
7113 | |
7114 | ipr_cmd->job_step = ipr_init_res_table; |
7115 | |
7116 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
7117 | |
7118 | LEAVE; |
7119 | return IPR_RC_JOB_RETURN; |
7120 | } |
7121 | |
7122 | static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd) |
7123 | { |
7124 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
7125 | |
7126 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) |
7127 | return IPR_RC_JOB_CONTINUE; |
7128 | |
7129 | return ipr_reset_cmd_failed(ipr_cmd); |
7130 | } |
7131 | |
7132 | static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd, |
7133 | __be32 res_handle, u8 sa_code) |
7134 | { |
7135 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7136 | |
7137 | ioarcb->res_handle = res_handle; |
7138 | ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION; |
7139 | ioarcb->cmd_pkt.cdb[1] = sa_code; |
7140 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
7141 | } |
7142 | |
7143 | /** |
7144 | * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service |
7145 | * action |
7146 | * @ipr_cmd: ipr command struct |
7147 | * |
7148 | * Return value: |
7149 | * none |
7150 | **/ |
7151 | static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd) |
7152 | { |
7153 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7154 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7155 | struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; |
7156 | |
7157 | ENTER; |
7158 | |
7159 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; |
7160 | |
7161 | if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) { |
7162 | ipr_build_ioa_service_action(ipr_cmd, |
7163 | cpu_to_be32(IPR_IOA_RES_HANDLE), |
7164 | IPR_IOA_SA_CHANGE_CACHE_PARAMS); |
7165 | |
7166 | ioarcb->cmd_pkt.cdb[2] = 0x40; |
7167 | |
7168 | ipr_cmd->job_step_failed = ipr_ioa_service_action_failed; |
7169 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
7170 | IPR_SET_SUP_DEVICE_TIMEOUT); |
7171 | |
7172 | LEAVE; |
7173 | return IPR_RC_JOB_RETURN; |
7174 | } |
7175 | |
7176 | LEAVE; |
7177 | return IPR_RC_JOB_CONTINUE; |
7178 | } |
7179 | |
7180 | /** |
7181 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. |
7182 | * @ipr_cmd: ipr command struct |
7183 | * @flags: flags to send |
7184 | * @page: page to inquire |
7185 | * @dma_addr: DMA address |
7186 | * @xfer_len: transfer data length |
7187 | * |
7188 | * This utility function sends an inquiry to the adapter. |
7189 | * |
7190 | * Return value: |
7191 | * none |
7192 | **/ |
7193 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, |
7194 | dma_addr_t dma_addr, u8 xfer_len) |
7195 | { |
7196 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7197 | |
7198 | ENTER; |
7199 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
7200 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
7201 | |
7202 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; |
7203 | ioarcb->cmd_pkt.cdb[1] = flags; |
7204 | ioarcb->cmd_pkt.cdb[2] = page; |
7205 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
7206 | |
7207 | ipr_init_ioadl(ipr_cmd, dma_addr, len: xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
7208 | |
7209 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
7210 | LEAVE; |
7211 | } |
7212 | |
7213 | /** |
7214 | * ipr_inquiry_page_supported - Is the given inquiry page supported |
7215 | * @page0: inquiry page 0 buffer |
7216 | * @page: page code. |
7217 | * |
7218 | * This function determines if the specified inquiry page is supported. |
7219 | * |
7220 | * Return value: |
7221 | * 1 if page is supported / 0 if not |
7222 | **/ |
7223 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) |
7224 | { |
7225 | int i; |
7226 | |
7227 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) |
7228 | if (page0->page[i] == page) |
7229 | return 1; |
7230 | |
7231 | return 0; |
7232 | } |
7233 | |
7234 | /** |
7235 | * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter. |
7236 | * @ipr_cmd: ipr command struct |
7237 | * |
7238 | * This function sends a Page 0xC4 inquiry to the adapter |
7239 | * to retrieve software VPD information. |
7240 | * |
7241 | * Return value: |
7242 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7243 | **/ |
7244 | static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd) |
7245 | { |
7246 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7247 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; |
7248 | struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; |
7249 | |
7250 | ENTER; |
7251 | ipr_cmd->job_step = ipr_ioafp_set_caching_parameters; |
7252 | memset(pageC4, 0, sizeof(*pageC4)); |
7253 | |
7254 | if (ipr_inquiry_page_supported(page0, page: 0xC4)) { |
7255 | ipr_ioafp_inquiry(ipr_cmd, flags: 1, page: 0xC4, |
7256 | dma_addr: (ioa_cfg->vpd_cbs_dma |
7257 | + offsetof(struct ipr_misc_cbs, |
7258 | pageC4_data)), |
7259 | xfer_len: sizeof(struct ipr_inquiry_pageC4)); |
7260 | return IPR_RC_JOB_RETURN; |
7261 | } |
7262 | |
7263 | LEAVE; |
7264 | return IPR_RC_JOB_CONTINUE; |
7265 | } |
7266 | |
7267 | /** |
7268 | * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. |
7269 | * @ipr_cmd: ipr command struct |
7270 | * |
7271 | * This function sends a Page 0xD0 inquiry to the adapter |
7272 | * to retrieve adapter capabilities. |
7273 | * |
7274 | * Return value: |
7275 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7276 | **/ |
7277 | static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) |
7278 | { |
7279 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7280 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; |
7281 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; |
7282 | |
7283 | ENTER; |
7284 | ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry; |
7285 | memset(cap, 0, sizeof(*cap)); |
7286 | |
7287 | if (ipr_inquiry_page_supported(page0, page: 0xD0)) { |
7288 | ipr_ioafp_inquiry(ipr_cmd, flags: 1, page: 0xD0, |
7289 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), |
7290 | xfer_len: sizeof(struct ipr_inquiry_cap)); |
7291 | return IPR_RC_JOB_RETURN; |
7292 | } |
7293 | |
7294 | LEAVE; |
7295 | return IPR_RC_JOB_CONTINUE; |
7296 | } |
7297 | |
7298 | /** |
7299 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. |
7300 | * @ipr_cmd: ipr command struct |
7301 | * |
7302 | * This function sends a Page 3 inquiry to the adapter |
7303 | * to retrieve software VPD information. |
7304 | * |
7305 | * Return value: |
7306 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7307 | **/ |
7308 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) |
7309 | { |
7310 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7311 | |
7312 | ENTER; |
7313 | |
7314 | ipr_cmd->job_step = ipr_ioafp_cap_inquiry; |
7315 | |
7316 | ipr_ioafp_inquiry(ipr_cmd, flags: 1, page: 3, |
7317 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), |
7318 | xfer_len: sizeof(struct ipr_inquiry_page3)); |
7319 | |
7320 | LEAVE; |
7321 | return IPR_RC_JOB_RETURN; |
7322 | } |
7323 | |
7324 | /** |
7325 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. |
7326 | * @ipr_cmd: ipr command struct |
7327 | * |
7328 | * This function sends a Page 0 inquiry to the adapter |
7329 | * to retrieve supported inquiry pages. |
7330 | * |
7331 | * Return value: |
7332 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7333 | **/ |
7334 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) |
7335 | { |
7336 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7337 | char type[5]; |
7338 | |
7339 | ENTER; |
7340 | |
7341 | /* Grab the type out of the VPD and store it away */ |
7342 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); |
7343 | type[4] = '\0'; |
7344 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); |
7345 | |
7346 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
7347 | |
7348 | ipr_ioafp_inquiry(ipr_cmd, flags: 1, page: 0, |
7349 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), |
7350 | xfer_len: sizeof(struct ipr_inquiry_page0)); |
7351 | |
7352 | LEAVE; |
7353 | return IPR_RC_JOB_RETURN; |
7354 | } |
7355 | |
7356 | /** |
7357 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. |
7358 | * @ipr_cmd: ipr command struct |
7359 | * |
7360 | * This function sends a standard inquiry to the adapter. |
7361 | * |
7362 | * Return value: |
7363 | * IPR_RC_JOB_RETURN |
7364 | **/ |
7365 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) |
7366 | { |
7367 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7368 | |
7369 | ENTER; |
7370 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
7371 | |
7372 | ipr_ioafp_inquiry(ipr_cmd, flags: 0, page: 0, |
7373 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), |
7374 | xfer_len: sizeof(struct ipr_ioa_vpd)); |
7375 | |
7376 | LEAVE; |
7377 | return IPR_RC_JOB_RETURN; |
7378 | } |
7379 | |
7380 | /** |
7381 | * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. |
7382 | * @ipr_cmd: ipr command struct |
7383 | * |
7384 | * This function send an Identify Host Request Response Queue |
7385 | * command to establish the HRRQ with the adapter. |
7386 | * |
7387 | * Return value: |
7388 | * IPR_RC_JOB_RETURN |
7389 | **/ |
7390 | static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) |
7391 | { |
7392 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7393 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7394 | struct ipr_hrr_queue *hrrq; |
7395 | |
7396 | ENTER; |
7397 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; |
7398 | if (ioa_cfg->identify_hrrq_index == 0) |
7399 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n" ); |
7400 | |
7401 | if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) { |
7402 | hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index]; |
7403 | |
7404 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; |
7405 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
7406 | |
7407 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
7408 | if (ioa_cfg->sis64) |
7409 | ioarcb->cmd_pkt.cdb[1] = 0x1; |
7410 | |
7411 | if (ioa_cfg->nvectors == 1) |
7412 | ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE; |
7413 | else |
7414 | ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE; |
7415 | |
7416 | ioarcb->cmd_pkt.cdb[2] = |
7417 | ((u64) hrrq->host_rrq_dma >> 24) & 0xff; |
7418 | ioarcb->cmd_pkt.cdb[3] = |
7419 | ((u64) hrrq->host_rrq_dma >> 16) & 0xff; |
7420 | ioarcb->cmd_pkt.cdb[4] = |
7421 | ((u64) hrrq->host_rrq_dma >> 8) & 0xff; |
7422 | ioarcb->cmd_pkt.cdb[5] = |
7423 | ((u64) hrrq->host_rrq_dma) & 0xff; |
7424 | ioarcb->cmd_pkt.cdb[7] = |
7425 | ((sizeof(u32) * hrrq->size) >> 8) & 0xff; |
7426 | ioarcb->cmd_pkt.cdb[8] = |
7427 | (sizeof(u32) * hrrq->size) & 0xff; |
7428 | |
7429 | if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) |
7430 | ioarcb->cmd_pkt.cdb[9] = |
7431 | ioa_cfg->identify_hrrq_index; |
7432 | |
7433 | if (ioa_cfg->sis64) { |
7434 | ioarcb->cmd_pkt.cdb[10] = |
7435 | ((u64) hrrq->host_rrq_dma >> 56) & 0xff; |
7436 | ioarcb->cmd_pkt.cdb[11] = |
7437 | ((u64) hrrq->host_rrq_dma >> 48) & 0xff; |
7438 | ioarcb->cmd_pkt.cdb[12] = |
7439 | ((u64) hrrq->host_rrq_dma >> 40) & 0xff; |
7440 | ioarcb->cmd_pkt.cdb[13] = |
7441 | ((u64) hrrq->host_rrq_dma >> 32) & 0xff; |
7442 | } |
7443 | |
7444 | if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) |
7445 | ioarcb->cmd_pkt.cdb[14] = |
7446 | ioa_cfg->identify_hrrq_index; |
7447 | |
7448 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
7449 | IPR_INTERNAL_TIMEOUT); |
7450 | |
7451 | if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) |
7452 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
7453 | |
7454 | LEAVE; |
7455 | return IPR_RC_JOB_RETURN; |
7456 | } |
7457 | |
7458 | LEAVE; |
7459 | return IPR_RC_JOB_CONTINUE; |
7460 | } |
7461 | |
7462 | /** |
7463 | * ipr_reset_timer_done - Adapter reset timer function |
7464 | * @t: Timer context used to fetch ipr command struct |
7465 | * |
7466 | * Description: This function is used in adapter reset processing |
7467 | * for timing events. If the reset_cmd pointer in the IOA |
7468 | * config struct is not this adapter's we are doing nested |
7469 | * resets and fail_all_ops will take care of freeing the |
7470 | * command block. |
7471 | * |
7472 | * Return value: |
7473 | * none |
7474 | **/ |
7475 | static void ipr_reset_timer_done(struct timer_list *t) |
7476 | { |
7477 | struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); |
7478 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7479 | unsigned long lock_flags = 0; |
7480 | |
7481 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
7482 | |
7483 | if (ioa_cfg->reset_cmd == ipr_cmd) { |
7484 | list_del(entry: &ipr_cmd->queue); |
7485 | ipr_cmd->done(ipr_cmd); |
7486 | } |
7487 | |
7488 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
7489 | } |
7490 | |
7491 | /** |
7492 | * ipr_reset_start_timer - Start a timer for adapter reset job |
7493 | * @ipr_cmd: ipr command struct |
7494 | * @timeout: timeout value |
7495 | * |
7496 | * Description: This function is used in adapter reset processing |
7497 | * for timing events. If the reset_cmd pointer in the IOA |
7498 | * config struct is not this adapter's we are doing nested |
7499 | * resets and fail_all_ops will take care of freeing the |
7500 | * command block. |
7501 | * |
7502 | * Return value: |
7503 | * none |
7504 | **/ |
7505 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, |
7506 | unsigned long timeout) |
7507 | { |
7508 | |
7509 | ENTER; |
7510 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
7511 | ipr_cmd->done = ipr_reset_ioa_job; |
7512 | |
7513 | ipr_cmd->timer.expires = jiffies + timeout; |
7514 | ipr_cmd->timer.function = ipr_reset_timer_done; |
7515 | add_timer(timer: &ipr_cmd->timer); |
7516 | } |
7517 | |
7518 | /** |
7519 | * ipr_init_ioa_mem - Initialize ioa_cfg control block |
7520 | * @ioa_cfg: ioa cfg struct |
7521 | * |
7522 | * Return value: |
7523 | * nothing |
7524 | **/ |
7525 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) |
7526 | { |
7527 | struct ipr_hrr_queue *hrrq; |
7528 | |
7529 | for_each_hrrq(hrrq, ioa_cfg) { |
7530 | spin_lock(lock: &hrrq->_lock); |
7531 | memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size); |
7532 | |
7533 | /* Initialize Host RRQ pointers */ |
7534 | hrrq->hrrq_start = hrrq->host_rrq; |
7535 | hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1]; |
7536 | hrrq->hrrq_curr = hrrq->hrrq_start; |
7537 | hrrq->toggle_bit = 1; |
7538 | spin_unlock(lock: &hrrq->_lock); |
7539 | } |
7540 | wmb(); |
7541 | |
7542 | ioa_cfg->identify_hrrq_index = 0; |
7543 | if (ioa_cfg->hrrq_num == 1) |
7544 | atomic_set(v: &ioa_cfg->hrrq_index, i: 0); |
7545 | else |
7546 | atomic_set(v: &ioa_cfg->hrrq_index, i: 1); |
7547 | |
7548 | /* Zero out config table */ |
7549 | memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); |
7550 | } |
7551 | |
7552 | /** |
7553 | * ipr_reset_next_stage - Process IPL stage change based on feedback register. |
7554 | * @ipr_cmd: ipr command struct |
7555 | * |
7556 | * Return value: |
7557 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7558 | **/ |
7559 | static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) |
7560 | { |
7561 | unsigned long stage, stage_time; |
7562 | u32 feedback; |
7563 | volatile u32 int_reg; |
7564 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7565 | u64 maskval = 0; |
7566 | |
7567 | feedback = readl(addr: ioa_cfg->regs.init_feedback_reg); |
7568 | stage = feedback & IPR_IPL_INIT_STAGE_MASK; |
7569 | stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; |
7570 | |
7571 | ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n" , stage, stage_time); |
7572 | |
7573 | /* sanity check the stage_time value */ |
7574 | if (stage_time == 0) |
7575 | stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; |
7576 | else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) |
7577 | stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; |
7578 | else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) |
7579 | stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; |
7580 | |
7581 | if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { |
7582 | writel(IPR_PCII_IPL_STAGE_CHANGE, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
7583 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
7584 | stage_time = ioa_cfg->transop_timeout; |
7585 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
7586 | } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { |
7587 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
7588 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
7589 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
7590 | maskval = IPR_PCII_IPL_STAGE_CHANGE; |
7591 | maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; |
7592 | writeq(val: maskval, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
7593 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
7594 | return IPR_RC_JOB_CONTINUE; |
7595 | } |
7596 | } |
7597 | |
7598 | ipr_cmd->timer.expires = jiffies + stage_time * HZ; |
7599 | ipr_cmd->timer.function = ipr_oper_timeout; |
7600 | ipr_cmd->done = ipr_reset_ioa_job; |
7601 | add_timer(timer: &ipr_cmd->timer); |
7602 | |
7603 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
7604 | |
7605 | return IPR_RC_JOB_RETURN; |
7606 | } |
7607 | |
7608 | /** |
7609 | * ipr_reset_enable_ioa - Enable the IOA following a reset. |
7610 | * @ipr_cmd: ipr command struct |
7611 | * |
7612 | * This function reinitializes some control blocks and |
7613 | * enables destructive diagnostics on the adapter. |
7614 | * |
7615 | * Return value: |
7616 | * IPR_RC_JOB_RETURN |
7617 | **/ |
7618 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) |
7619 | { |
7620 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7621 | volatile u32 int_reg; |
7622 | volatile u64 maskval; |
7623 | int i; |
7624 | |
7625 | ENTER; |
7626 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
7627 | ipr_init_ioa_mem(ioa_cfg); |
7628 | |
7629 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
7630 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
7631 | ioa_cfg->hrrq[i].allow_interrupts = 1; |
7632 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
7633 | } |
7634 | if (ioa_cfg->sis64) { |
7635 | /* Set the adapter to the correct endian mode. */ |
7636 | writel(IPR_ENDIAN_SWAP_KEY, addr: ioa_cfg->regs.endian_swap_reg); |
7637 | int_reg = readl(addr: ioa_cfg->regs.endian_swap_reg); |
7638 | } |
7639 | |
7640 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
7641 | |
7642 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
7643 | writel(val: (IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), |
7644 | addr: ioa_cfg->regs.clr_interrupt_mask_reg32); |
7645 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
7646 | return IPR_RC_JOB_CONTINUE; |
7647 | } |
7648 | |
7649 | /* Enable destructive diagnostics on IOA */ |
7650 | writel(val: ioa_cfg->doorbell, addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
7651 | |
7652 | if (ioa_cfg->sis64) { |
7653 | maskval = IPR_PCII_IPL_STAGE_CHANGE; |
7654 | maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; |
7655 | writeq(val: maskval, addr: ioa_cfg->regs.clr_interrupt_mask_reg); |
7656 | } else |
7657 | writel(IPR_PCII_OPER_INTERRUPTS, addr: ioa_cfg->regs.clr_interrupt_mask_reg32); |
7658 | |
7659 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
7660 | |
7661 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n" ); |
7662 | |
7663 | if (ioa_cfg->sis64) { |
7664 | ipr_cmd->job_step = ipr_reset_next_stage; |
7665 | return IPR_RC_JOB_CONTINUE; |
7666 | } |
7667 | |
7668 | ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); |
7669 | ipr_cmd->timer.function = ipr_oper_timeout; |
7670 | ipr_cmd->done = ipr_reset_ioa_job; |
7671 | add_timer(timer: &ipr_cmd->timer); |
7672 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
7673 | |
7674 | LEAVE; |
7675 | return IPR_RC_JOB_RETURN; |
7676 | } |
7677 | |
7678 | /** |
7679 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. |
7680 | * @ipr_cmd: ipr command struct |
7681 | * |
7682 | * This function is invoked when an adapter dump has run out |
7683 | * of processing time. |
7684 | * |
7685 | * Return value: |
7686 | * IPR_RC_JOB_CONTINUE |
7687 | **/ |
7688 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) |
7689 | { |
7690 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7691 | |
7692 | if (ioa_cfg->sdt_state == GET_DUMP) |
7693 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
7694 | else if (ioa_cfg->sdt_state == READ_DUMP) |
7695 | ioa_cfg->sdt_state = ABORT_DUMP; |
7696 | |
7697 | ioa_cfg->dump_timeout = 1; |
7698 | ipr_cmd->job_step = ipr_reset_alert; |
7699 | |
7700 | return IPR_RC_JOB_CONTINUE; |
7701 | } |
7702 | |
7703 | /** |
7704 | * ipr_unit_check_no_data - Log a unit check/no data error log |
7705 | * @ioa_cfg: ioa config struct |
7706 | * |
7707 | * Logs an error indicating the adapter unit checked, but for some |
7708 | * reason, we were unable to fetch the unit check buffer. |
7709 | * |
7710 | * Return value: |
7711 | * nothing |
7712 | **/ |
7713 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) |
7714 | { |
7715 | ioa_cfg->errors_logged++; |
7716 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n" ); |
7717 | } |
7718 | |
7719 | /** |
7720 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA |
7721 | * @ioa_cfg: ioa config struct |
7722 | * |
7723 | * Fetches the unit check buffer from the adapter by clocking the data |
7724 | * through the mailbox register. |
7725 | * |
7726 | * Return value: |
7727 | * nothing |
7728 | **/ |
7729 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) |
7730 | { |
7731 | unsigned long mailbox; |
7732 | struct ipr_hostrcb *hostrcb; |
7733 | struct ipr_uc_sdt sdt; |
7734 | int rc, length; |
7735 | u32 ioasc; |
7736 | |
7737 | mailbox = readl(addr: ioa_cfg->ioa_mailbox); |
7738 | |
7739 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(sdt_word: mailbox)) { |
7740 | ipr_unit_check_no_data(ioa_cfg); |
7741 | return; |
7742 | } |
7743 | |
7744 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); |
7745 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr: mailbox, dest: (__be32 *) &sdt, |
7746 | length_in_words: (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); |
7747 | |
7748 | if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || |
7749 | ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && |
7750 | (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { |
7751 | ipr_unit_check_no_data(ioa_cfg); |
7752 | return; |
7753 | } |
7754 | |
7755 | /* Find length of the first sdt entry (UC buffer) */ |
7756 | if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) |
7757 | length = be32_to_cpu(sdt.entry[0].end_token); |
7758 | else |
7759 | length = (be32_to_cpu(sdt.entry[0].end_token) - |
7760 | be32_to_cpu(sdt.entry[0].start_token)) & |
7761 | IPR_FMT2_MBX_ADDR_MASK; |
7762 | |
7763 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, |
7764 | struct ipr_hostrcb, queue); |
7765 | list_del_init(entry: &hostrcb->queue); |
7766 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); |
7767 | |
7768 | rc = ipr_get_ldump_data_section(ioa_cfg, |
7769 | be32_to_cpu(sdt.entry[0].start_token), |
7770 | dest: (__be32 *)&hostrcb->hcam, |
7771 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); |
7772 | |
7773 | if (!rc) { |
7774 | ipr_handle_log_data(ioa_cfg, hostrcb); |
7775 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
7776 | if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && |
7777 | ioa_cfg->sdt_state == GET_DUMP) |
7778 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
7779 | } else |
7780 | ipr_unit_check_no_data(ioa_cfg); |
7781 | |
7782 | list_add_tail(new: &hostrcb->queue, head: &ioa_cfg->hostrcb_free_q); |
7783 | } |
7784 | |
7785 | /** |
7786 | * ipr_reset_get_unit_check_job - Call to get the unit check buffer. |
7787 | * @ipr_cmd: ipr command struct |
7788 | * |
7789 | * Description: This function will call to get the unit check buffer. |
7790 | * |
7791 | * Return value: |
7792 | * IPR_RC_JOB_RETURN |
7793 | **/ |
7794 | static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) |
7795 | { |
7796 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7797 | |
7798 | ENTER; |
7799 | ioa_cfg->ioa_unit_checked = 0; |
7800 | ipr_get_unit_check_buffer(ioa_cfg); |
7801 | ipr_cmd->job_step = ipr_reset_alert; |
7802 | ipr_reset_start_timer(ipr_cmd, timeout: 0); |
7803 | |
7804 | LEAVE; |
7805 | return IPR_RC_JOB_RETURN; |
7806 | } |
7807 | |
7808 | static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd) |
7809 | { |
7810 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7811 | |
7812 | ENTER; |
7813 | |
7814 | if (ioa_cfg->sdt_state != GET_DUMP) |
7815 | return IPR_RC_JOB_RETURN; |
7816 | |
7817 | if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left || |
7818 | (readl(addr: ioa_cfg->regs.sense_interrupt_reg) & |
7819 | IPR_PCII_MAILBOX_STABLE)) { |
7820 | |
7821 | if (!ipr_cmd->u.time_left) |
7822 | dev_err(&ioa_cfg->pdev->dev, |
7823 | "Timed out waiting for Mailbox register.\n" ); |
7824 | |
7825 | ioa_cfg->sdt_state = READ_DUMP; |
7826 | ioa_cfg->dump_timeout = 0; |
7827 | if (ioa_cfg->sis64) |
7828 | ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT); |
7829 | else |
7830 | ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT); |
7831 | ipr_cmd->job_step = ipr_reset_wait_for_dump; |
7832 | schedule_work(work: &ioa_cfg->work_q); |
7833 | |
7834 | } else { |
7835 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
7836 | ipr_reset_start_timer(ipr_cmd, |
7837 | IPR_CHECK_FOR_RESET_TIMEOUT); |
7838 | } |
7839 | |
7840 | LEAVE; |
7841 | return IPR_RC_JOB_RETURN; |
7842 | } |
7843 | |
7844 | /** |
7845 | * ipr_reset_restore_cfg_space - Restore PCI config space. |
7846 | * @ipr_cmd: ipr command struct |
7847 | * |
7848 | * Description: This function restores the saved PCI config space of |
7849 | * the adapter, fails all outstanding ops back to the callers, and |
7850 | * fetches the dump/unit check if applicable to this reset. |
7851 | * |
7852 | * Return value: |
7853 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7854 | **/ |
7855 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) |
7856 | { |
7857 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7858 | |
7859 | ENTER; |
7860 | ioa_cfg->pdev->state_saved = true; |
7861 | pci_restore_state(dev: ioa_cfg->pdev); |
7862 | |
7863 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { |
7864 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
7865 | return IPR_RC_JOB_CONTINUE; |
7866 | } |
7867 | |
7868 | ipr_fail_all_ops(ioa_cfg); |
7869 | |
7870 | if (ioa_cfg->sis64) { |
7871 | /* Set the adapter to the correct endian mode. */ |
7872 | writel(IPR_ENDIAN_SWAP_KEY, addr: ioa_cfg->regs.endian_swap_reg); |
7873 | readl(addr: ioa_cfg->regs.endian_swap_reg); |
7874 | } |
7875 | |
7876 | if (ioa_cfg->ioa_unit_checked) { |
7877 | if (ioa_cfg->sis64) { |
7878 | ipr_cmd->job_step = ipr_reset_get_unit_check_job; |
7879 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); |
7880 | return IPR_RC_JOB_RETURN; |
7881 | } else { |
7882 | ioa_cfg->ioa_unit_checked = 0; |
7883 | ipr_get_unit_check_buffer(ioa_cfg); |
7884 | ipr_cmd->job_step = ipr_reset_alert; |
7885 | ipr_reset_start_timer(ipr_cmd, timeout: 0); |
7886 | return IPR_RC_JOB_RETURN; |
7887 | } |
7888 | } |
7889 | |
7890 | if (ioa_cfg->in_ioa_bringdown) { |
7891 | ipr_cmd->job_step = ipr_ioa_bringdown_done; |
7892 | } else if (ioa_cfg->sdt_state == GET_DUMP) { |
7893 | ipr_cmd->job_step = ipr_dump_mailbox_wait; |
7894 | ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX; |
7895 | } else { |
7896 | ipr_cmd->job_step = ipr_reset_enable_ioa; |
7897 | } |
7898 | |
7899 | LEAVE; |
7900 | return IPR_RC_JOB_CONTINUE; |
7901 | } |
7902 | |
7903 | /** |
7904 | * ipr_reset_bist_done - BIST has completed on the adapter. |
7905 | * @ipr_cmd: ipr command struct |
7906 | * |
7907 | * Description: Unblock config space and resume the reset process. |
7908 | * |
7909 | * Return value: |
7910 | * IPR_RC_JOB_CONTINUE |
7911 | **/ |
7912 | static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) |
7913 | { |
7914 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7915 | |
7916 | ENTER; |
7917 | if (ioa_cfg->cfg_locked) |
7918 | pci_cfg_access_unlock(dev: ioa_cfg->pdev); |
7919 | ioa_cfg->cfg_locked = 0; |
7920 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; |
7921 | LEAVE; |
7922 | return IPR_RC_JOB_CONTINUE; |
7923 | } |
7924 | |
7925 | /** |
7926 | * ipr_reset_start_bist - Run BIST on the adapter. |
7927 | * @ipr_cmd: ipr command struct |
7928 | * |
7929 | * Description: This function runs BIST on the adapter, then delays 2 seconds. |
7930 | * |
7931 | * Return value: |
7932 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7933 | **/ |
7934 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) |
7935 | { |
7936 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7937 | int rc = PCIBIOS_SUCCESSFUL; |
7938 | |
7939 | ENTER; |
7940 | if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) |
7941 | writel(IPR_UPROCI_SIS64_START_BIST, |
7942 | addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
7943 | else |
7944 | rc = pci_write_config_byte(dev: ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); |
7945 | |
7946 | if (rc == PCIBIOS_SUCCESSFUL) { |
7947 | ipr_cmd->job_step = ipr_reset_bist_done; |
7948 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
7949 | rc = IPR_RC_JOB_RETURN; |
7950 | } else { |
7951 | if (ioa_cfg->cfg_locked) |
7952 | pci_cfg_access_unlock(dev: ipr_cmd->ioa_cfg->pdev); |
7953 | ioa_cfg->cfg_locked = 0; |
7954 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
7955 | rc = IPR_RC_JOB_CONTINUE; |
7956 | } |
7957 | |
7958 | LEAVE; |
7959 | return rc; |
7960 | } |
7961 | |
7962 | /** |
7963 | * ipr_reset_slot_reset_done - Clear PCI reset to the adapter |
7964 | * @ipr_cmd: ipr command struct |
7965 | * |
7966 | * Description: This clears PCI reset to the adapter and delays two seconds. |
7967 | * |
7968 | * Return value: |
7969 | * IPR_RC_JOB_RETURN |
7970 | **/ |
7971 | static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) |
7972 | { |
7973 | ENTER; |
7974 | ipr_cmd->job_step = ipr_reset_bist_done; |
7975 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
7976 | LEAVE; |
7977 | return IPR_RC_JOB_RETURN; |
7978 | } |
7979 | |
7980 | /** |
7981 | * ipr_reset_reset_work - Pulse a PCIe fundamental reset |
7982 | * @work: work struct |
7983 | * |
7984 | * Description: This pulses warm reset to a slot. |
7985 | * |
7986 | **/ |
7987 | static void ipr_reset_reset_work(struct work_struct *work) |
7988 | { |
7989 | struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work); |
7990 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7991 | struct pci_dev *pdev = ioa_cfg->pdev; |
7992 | unsigned long lock_flags = 0; |
7993 | |
7994 | ENTER; |
7995 | pci_set_pcie_reset_state(dev: pdev, state: pcie_warm_reset); |
7996 | msleep(msecs: jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT)); |
7997 | pci_set_pcie_reset_state(dev: pdev, state: pcie_deassert_reset); |
7998 | |
7999 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
8000 | if (ioa_cfg->reset_cmd == ipr_cmd) |
8001 | ipr_reset_ioa_job(ipr_cmd); |
8002 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
8003 | LEAVE; |
8004 | } |
8005 | |
8006 | /** |
8007 | * ipr_reset_slot_reset - Reset the PCI slot of the adapter. |
8008 | * @ipr_cmd: ipr command struct |
8009 | * |
8010 | * Description: This asserts PCI reset to the adapter. |
8011 | * |
8012 | * Return value: |
8013 | * IPR_RC_JOB_RETURN |
8014 | **/ |
8015 | static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) |
8016 | { |
8017 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8018 | |
8019 | ENTER; |
8020 | INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work); |
8021 | queue_work(wq: ioa_cfg->reset_work_q, work: &ipr_cmd->work); |
8022 | ipr_cmd->job_step = ipr_reset_slot_reset_done; |
8023 | LEAVE; |
8024 | return IPR_RC_JOB_RETURN; |
8025 | } |
8026 | |
8027 | /** |
8028 | * ipr_reset_block_config_access_wait - Wait for permission to block config access |
8029 | * @ipr_cmd: ipr command struct |
8030 | * |
8031 | * Description: This attempts to block config access to the IOA. |
8032 | * |
8033 | * Return value: |
8034 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8035 | **/ |
8036 | static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd) |
8037 | { |
8038 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8039 | int rc = IPR_RC_JOB_CONTINUE; |
8040 | |
8041 | if (pci_cfg_access_trylock(dev: ioa_cfg->pdev)) { |
8042 | ioa_cfg->cfg_locked = 1; |
8043 | ipr_cmd->job_step = ioa_cfg->reset; |
8044 | } else { |
8045 | if (ipr_cmd->u.time_left) { |
8046 | rc = IPR_RC_JOB_RETURN; |
8047 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
8048 | ipr_reset_start_timer(ipr_cmd, |
8049 | IPR_CHECK_FOR_RESET_TIMEOUT); |
8050 | } else { |
8051 | ipr_cmd->job_step = ioa_cfg->reset; |
8052 | dev_err(&ioa_cfg->pdev->dev, |
8053 | "Timed out waiting to lock config access. Resetting anyway.\n" ); |
8054 | } |
8055 | } |
8056 | |
8057 | return rc; |
8058 | } |
8059 | |
8060 | /** |
8061 | * ipr_reset_block_config_access - Block config access to the IOA |
8062 | * @ipr_cmd: ipr command struct |
8063 | * |
8064 | * Description: This attempts to block config access to the IOA |
8065 | * |
8066 | * Return value: |
8067 | * IPR_RC_JOB_CONTINUE |
8068 | **/ |
8069 | static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd) |
8070 | { |
8071 | ipr_cmd->ioa_cfg->cfg_locked = 0; |
8072 | ipr_cmd->job_step = ipr_reset_block_config_access_wait; |
8073 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; |
8074 | return IPR_RC_JOB_CONTINUE; |
8075 | } |
8076 | |
8077 | /** |
8078 | * ipr_reset_allowed - Query whether or not IOA can be reset |
8079 | * @ioa_cfg: ioa config struct |
8080 | * |
8081 | * Return value: |
8082 | * 0 if reset not allowed / non-zero if reset is allowed |
8083 | **/ |
8084 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) |
8085 | { |
8086 | volatile u32 temp_reg; |
8087 | |
8088 | temp_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
8089 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); |
8090 | } |
8091 | |
8092 | /** |
8093 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. |
8094 | * @ipr_cmd: ipr command struct |
8095 | * |
8096 | * Description: This function waits for adapter permission to run BIST, |
8097 | * then runs BIST. If the adapter does not give permission after a |
8098 | * reasonable time, we will reset the adapter anyway. The impact of |
8099 | * resetting the adapter without warning the adapter is the risk of |
8100 | * losing the persistent error log on the adapter. If the adapter is |
8101 | * reset while it is writing to the flash on the adapter, the flash |
8102 | * segment will have bad ECC and be zeroed. |
8103 | * |
8104 | * Return value: |
8105 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8106 | **/ |
8107 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) |
8108 | { |
8109 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8110 | int rc = IPR_RC_JOB_RETURN; |
8111 | |
8112 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { |
8113 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
8114 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); |
8115 | } else { |
8116 | ipr_cmd->job_step = ipr_reset_block_config_access; |
8117 | rc = IPR_RC_JOB_CONTINUE; |
8118 | } |
8119 | |
8120 | return rc; |
8121 | } |
8122 | |
8123 | /** |
8124 | * ipr_reset_alert - Alert the adapter of a pending reset |
8125 | * @ipr_cmd: ipr command struct |
8126 | * |
8127 | * Description: This function alerts the adapter that it will be reset. |
8128 | * If memory space is not currently enabled, proceed directly |
8129 | * to running BIST on the adapter. The timer must always be started |
8130 | * so we guarantee we do not run BIST from ipr_isr. |
8131 | * |
8132 | * Return value: |
8133 | * IPR_RC_JOB_RETURN |
8134 | **/ |
8135 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) |
8136 | { |
8137 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8138 | u16 cmd_reg; |
8139 | int rc; |
8140 | |
8141 | ENTER; |
8142 | rc = pci_read_config_word(dev: ioa_cfg->pdev, PCI_COMMAND, val: &cmd_reg); |
8143 | |
8144 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { |
8145 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~0); |
8146 | writel(IPR_UPROCI_RESET_ALERT, addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
8147 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; |
8148 | } else { |
8149 | ipr_cmd->job_step = ipr_reset_block_config_access; |
8150 | } |
8151 | |
8152 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; |
8153 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); |
8154 | |
8155 | LEAVE; |
8156 | return IPR_RC_JOB_RETURN; |
8157 | } |
8158 | |
8159 | /** |
8160 | * ipr_reset_quiesce_done - Complete IOA disconnect |
8161 | * @ipr_cmd: ipr command struct |
8162 | * |
8163 | * Description: Freeze the adapter to complete quiesce processing |
8164 | * |
8165 | * Return value: |
8166 | * IPR_RC_JOB_CONTINUE |
8167 | **/ |
8168 | static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd) |
8169 | { |
8170 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8171 | |
8172 | ENTER; |
8173 | ipr_cmd->job_step = ipr_ioa_bringdown_done; |
8174 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~IPR_PCII_IOA_TRANS_TO_OPER); |
8175 | LEAVE; |
8176 | return IPR_RC_JOB_CONTINUE; |
8177 | } |
8178 | |
8179 | /** |
8180 | * ipr_reset_cancel_hcam_done - Check for outstanding commands |
8181 | * @ipr_cmd: ipr command struct |
8182 | * |
8183 | * Description: Ensure nothing is outstanding to the IOA and |
8184 | * proceed with IOA disconnect. Otherwise reset the IOA. |
8185 | * |
8186 | * Return value: |
8187 | * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE |
8188 | **/ |
8189 | static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd) |
8190 | { |
8191 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8192 | struct ipr_cmnd *loop_cmd; |
8193 | struct ipr_hrr_queue *hrrq; |
8194 | int rc = IPR_RC_JOB_CONTINUE; |
8195 | int count = 0; |
8196 | |
8197 | ENTER; |
8198 | ipr_cmd->job_step = ipr_reset_quiesce_done; |
8199 | |
8200 | for_each_hrrq(hrrq, ioa_cfg) { |
8201 | spin_lock(lock: &hrrq->_lock); |
8202 | list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) { |
8203 | count++; |
8204 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
8205 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
8206 | rc = IPR_RC_JOB_RETURN; |
8207 | break; |
8208 | } |
8209 | spin_unlock(lock: &hrrq->_lock); |
8210 | |
8211 | if (count) |
8212 | break; |
8213 | } |
8214 | |
8215 | LEAVE; |
8216 | return rc; |
8217 | } |
8218 | |
8219 | /** |
8220 | * ipr_reset_cancel_hcam - Cancel outstanding HCAMs |
8221 | * @ipr_cmd: ipr command struct |
8222 | * |
8223 | * Description: Cancel any oustanding HCAMs to the IOA. |
8224 | * |
8225 | * Return value: |
8226 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8227 | **/ |
8228 | static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd) |
8229 | { |
8230 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8231 | int rc = IPR_RC_JOB_CONTINUE; |
8232 | struct ipr_cmd_pkt *cmd_pkt; |
8233 | struct ipr_cmnd *hcam_cmd; |
8234 | struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ]; |
8235 | |
8236 | ENTER; |
8237 | ipr_cmd->job_step = ipr_reset_cancel_hcam_done; |
8238 | |
8239 | if (!hrrq->ioa_is_dead) { |
8240 | if (!list_empty(head: &ioa_cfg->hostrcb_pending_q)) { |
8241 | list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) { |
8242 | if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC) |
8243 | continue; |
8244 | |
8245 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
8246 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
8247 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
8248 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
8249 | cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST; |
8250 | cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB; |
8251 | cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff; |
8252 | cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff; |
8253 | cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff; |
8254 | cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff; |
8255 | cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff; |
8256 | cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff; |
8257 | cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff; |
8258 | cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff; |
8259 | |
8260 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
8261 | IPR_CANCEL_TIMEOUT); |
8262 | |
8263 | rc = IPR_RC_JOB_RETURN; |
8264 | ipr_cmd->job_step = ipr_reset_cancel_hcam; |
8265 | break; |
8266 | } |
8267 | } |
8268 | } else |
8269 | ipr_cmd->job_step = ipr_reset_alert; |
8270 | |
8271 | LEAVE; |
8272 | return rc; |
8273 | } |
8274 | |
8275 | /** |
8276 | * ipr_reset_ucode_download_done - Microcode download completion |
8277 | * @ipr_cmd: ipr command struct |
8278 | * |
8279 | * Description: This function unmaps the microcode download buffer. |
8280 | * |
8281 | * Return value: |
8282 | * IPR_RC_JOB_CONTINUE |
8283 | **/ |
8284 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) |
8285 | { |
8286 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8287 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; |
8288 | |
8289 | dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist, |
8290 | sglist->num_sg, DMA_TO_DEVICE); |
8291 | |
8292 | ipr_cmd->job_step = ipr_reset_alert; |
8293 | return IPR_RC_JOB_CONTINUE; |
8294 | } |
8295 | |
8296 | /** |
8297 | * ipr_reset_ucode_download - Download microcode to the adapter |
8298 | * @ipr_cmd: ipr command struct |
8299 | * |
8300 | * Description: This function checks to see if it there is microcode |
8301 | * to download to the adapter. If there is, a download is performed. |
8302 | * |
8303 | * Return value: |
8304 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8305 | **/ |
8306 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) |
8307 | { |
8308 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8309 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; |
8310 | |
8311 | ENTER; |
8312 | ipr_cmd->job_step = ipr_reset_alert; |
8313 | |
8314 | if (!sglist) |
8315 | return IPR_RC_JOB_CONTINUE; |
8316 | |
8317 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
8318 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
8319 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; |
8320 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; |
8321 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; |
8322 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; |
8323 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; |
8324 | |
8325 | if (ioa_cfg->sis64) |
8326 | ipr_build_ucode_ioadl64(ipr_cmd, sglist); |
8327 | else |
8328 | ipr_build_ucode_ioadl(ipr_cmd, sglist); |
8329 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
8330 | |
8331 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
8332 | IPR_WRITE_BUFFER_TIMEOUT); |
8333 | |
8334 | LEAVE; |
8335 | return IPR_RC_JOB_RETURN; |
8336 | } |
8337 | |
8338 | /** |
8339 | * ipr_reset_shutdown_ioa - Shutdown the adapter |
8340 | * @ipr_cmd: ipr command struct |
8341 | * |
8342 | * Description: This function issues an adapter shutdown of the |
8343 | * specified type to the specified adapter as part of the |
8344 | * adapter reset job. |
8345 | * |
8346 | * Return value: |
8347 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8348 | **/ |
8349 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) |
8350 | { |
8351 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8352 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; |
8353 | unsigned long timeout; |
8354 | int rc = IPR_RC_JOB_CONTINUE; |
8355 | |
8356 | ENTER; |
8357 | if (shutdown_type == IPR_SHUTDOWN_QUIESCE) |
8358 | ipr_cmd->job_step = ipr_reset_cancel_hcam; |
8359 | else if (shutdown_type != IPR_SHUTDOWN_NONE && |
8360 | !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
8361 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
8362 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
8363 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; |
8364 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; |
8365 | |
8366 | if (shutdown_type == IPR_SHUTDOWN_NORMAL) |
8367 | timeout = IPR_SHUTDOWN_TIMEOUT; |
8368 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) |
8369 | timeout = IPR_INTERNAL_TIMEOUT; |
8370 | else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
8371 | timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; |
8372 | else |
8373 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; |
8374 | |
8375 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, timeout); |
8376 | |
8377 | rc = IPR_RC_JOB_RETURN; |
8378 | ipr_cmd->job_step = ipr_reset_ucode_download; |
8379 | } else |
8380 | ipr_cmd->job_step = ipr_reset_alert; |
8381 | |
8382 | LEAVE; |
8383 | return rc; |
8384 | } |
8385 | |
8386 | /** |
8387 | * ipr_reset_ioa_job - Adapter reset job |
8388 | * @ipr_cmd: ipr command struct |
8389 | * |
8390 | * Description: This function is the job router for the adapter reset job. |
8391 | * |
8392 | * Return value: |
8393 | * none |
8394 | **/ |
8395 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) |
8396 | { |
8397 | u32 rc, ioasc; |
8398 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8399 | |
8400 | do { |
8401 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
8402 | |
8403 | if (ioa_cfg->reset_cmd != ipr_cmd) { |
8404 | /* |
8405 | * We are doing nested adapter resets and this is |
8406 | * not the current reset job. |
8407 | */ |
8408 | list_add_tail(new: &ipr_cmd->queue, |
8409 | head: &ipr_cmd->hrrq->hrrq_free_q); |
8410 | return; |
8411 | } |
8412 | |
8413 | if (IPR_IOASC_SENSE_KEY(ioasc)) { |
8414 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
8415 | if (rc == IPR_RC_JOB_RETURN) |
8416 | return; |
8417 | } |
8418 | |
8419 | ipr_reinit_ipr_cmnd(ipr_cmd); |
8420 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
8421 | rc = ipr_cmd->job_step(ipr_cmd); |
8422 | } while (rc == IPR_RC_JOB_CONTINUE); |
8423 | } |
8424 | |
8425 | /** |
8426 | * _ipr_initiate_ioa_reset - Initiate an adapter reset |
8427 | * @ioa_cfg: ioa config struct |
8428 | * @job_step: first job step of reset job |
8429 | * @shutdown_type: shutdown type |
8430 | * |
8431 | * Description: This function will initiate the reset of the given adapter |
8432 | * starting at the selected job step. |
8433 | * If the caller needs to wait on the completion of the reset, |
8434 | * the caller must sleep on the reset_wait_q. |
8435 | * |
8436 | * Return value: |
8437 | * none |
8438 | **/ |
8439 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, |
8440 | int (*job_step) (struct ipr_cmnd *), |
8441 | enum ipr_shutdown_type shutdown_type) |
8442 | { |
8443 | struct ipr_cmnd *ipr_cmd; |
8444 | int i; |
8445 | |
8446 | ioa_cfg->in_reset_reload = 1; |
8447 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8448 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
8449 | ioa_cfg->hrrq[i].allow_cmds = 0; |
8450 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
8451 | } |
8452 | wmb(); |
8453 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
8454 | ioa_cfg->scsi_unblock = 0; |
8455 | ioa_cfg->scsi_blocked = 1; |
8456 | scsi_block_requests(ioa_cfg->host); |
8457 | } |
8458 | |
8459 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
8460 | ioa_cfg->reset_cmd = ipr_cmd; |
8461 | ipr_cmd->job_step = job_step; |
8462 | ipr_cmd->u.shutdown_type = shutdown_type; |
8463 | |
8464 | ipr_reset_ioa_job(ipr_cmd); |
8465 | } |
8466 | |
8467 | /** |
8468 | * ipr_initiate_ioa_reset - Initiate an adapter reset |
8469 | * @ioa_cfg: ioa config struct |
8470 | * @shutdown_type: shutdown type |
8471 | * |
8472 | * Description: This function will initiate the reset of the given adapter. |
8473 | * If the caller needs to wait on the completion of the reset, |
8474 | * the caller must sleep on the reset_wait_q. |
8475 | * |
8476 | * Return value: |
8477 | * none |
8478 | **/ |
8479 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, |
8480 | enum ipr_shutdown_type shutdown_type) |
8481 | { |
8482 | int i; |
8483 | |
8484 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
8485 | return; |
8486 | |
8487 | if (ioa_cfg->in_reset_reload) { |
8488 | if (ioa_cfg->sdt_state == GET_DUMP) |
8489 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
8490 | else if (ioa_cfg->sdt_state == READ_DUMP) |
8491 | ioa_cfg->sdt_state = ABORT_DUMP; |
8492 | } |
8493 | |
8494 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { |
8495 | dev_err(&ioa_cfg->pdev->dev, |
8496 | "IOA taken offline - error recovery failed\n" ); |
8497 | |
8498 | ioa_cfg->reset_retries = 0; |
8499 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8500 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
8501 | ioa_cfg->hrrq[i].ioa_is_dead = 1; |
8502 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
8503 | } |
8504 | wmb(); |
8505 | |
8506 | if (ioa_cfg->in_ioa_bringdown) { |
8507 | ioa_cfg->reset_cmd = NULL; |
8508 | ioa_cfg->in_reset_reload = 0; |
8509 | ipr_fail_all_ops(ioa_cfg); |
8510 | wake_up_all(&ioa_cfg->reset_wait_q); |
8511 | |
8512 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
8513 | ioa_cfg->scsi_unblock = 1; |
8514 | schedule_work(work: &ioa_cfg->work_q); |
8515 | } |
8516 | return; |
8517 | } else { |
8518 | ioa_cfg->in_ioa_bringdown = 1; |
8519 | shutdown_type = IPR_SHUTDOWN_NONE; |
8520 | } |
8521 | } |
8522 | |
8523 | _ipr_initiate_ioa_reset(ioa_cfg, job_step: ipr_reset_shutdown_ioa, |
8524 | shutdown_type); |
8525 | } |
8526 | |
8527 | /** |
8528 | * ipr_reset_freeze - Hold off all I/O activity |
8529 | * @ipr_cmd: ipr command struct |
8530 | * |
8531 | * Description: If the PCI slot is frozen, hold off all I/O |
8532 | * activity; then, as soon as the slot is available again, |
8533 | * initiate an adapter reset. |
8534 | */ |
8535 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) |
8536 | { |
8537 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8538 | int i; |
8539 | |
8540 | /* Disallow new interrupts, avoid loop */ |
8541 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8542 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
8543 | ioa_cfg->hrrq[i].allow_interrupts = 0; |
8544 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
8545 | } |
8546 | wmb(); |
8547 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
8548 | ipr_cmd->done = ipr_reset_ioa_job; |
8549 | return IPR_RC_JOB_RETURN; |
8550 | } |
8551 | |
8552 | /** |
8553 | * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled |
8554 | * @pdev: PCI device struct |
8555 | * |
8556 | * Description: This routine is called to tell us that the MMIO |
8557 | * access to the IOA has been restored |
8558 | */ |
8559 | static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev) |
8560 | { |
8561 | unsigned long flags = 0; |
8562 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
8563 | |
8564 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
8565 | if (!ioa_cfg->probe_done) |
8566 | pci_save_state(dev: pdev); |
8567 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
8568 | return PCI_ERS_RESULT_NEED_RESET; |
8569 | } |
8570 | |
8571 | /** |
8572 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. |
8573 | * @pdev: PCI device struct |
8574 | * |
8575 | * Description: This routine is called to tell us that the PCI bus |
8576 | * is down. Can't do anything here, except put the device driver |
8577 | * into a holding pattern, waiting for the PCI bus to come back. |
8578 | */ |
8579 | static void ipr_pci_frozen(struct pci_dev *pdev) |
8580 | { |
8581 | unsigned long flags = 0; |
8582 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
8583 | |
8584 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
8585 | if (ioa_cfg->probe_done) |
8586 | _ipr_initiate_ioa_reset(ioa_cfg, job_step: ipr_reset_freeze, shutdown_type: IPR_SHUTDOWN_NONE); |
8587 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
8588 | } |
8589 | |
8590 | /** |
8591 | * ipr_pci_slot_reset - Called when PCI slot has been reset. |
8592 | * @pdev: PCI device struct |
8593 | * |
8594 | * Description: This routine is called by the pci error recovery |
8595 | * code after the PCI slot has been reset, just before we |
8596 | * should resume normal operations. |
8597 | */ |
8598 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) |
8599 | { |
8600 | unsigned long flags = 0; |
8601 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
8602 | |
8603 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
8604 | if (ioa_cfg->probe_done) { |
8605 | if (ioa_cfg->needs_warm_reset) |
8606 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type: IPR_SHUTDOWN_NONE); |
8607 | else |
8608 | _ipr_initiate_ioa_reset(ioa_cfg, job_step: ipr_reset_restore_cfg_space, |
8609 | shutdown_type: IPR_SHUTDOWN_NONE); |
8610 | } else |
8611 | wake_up_all(&ioa_cfg->eeh_wait_q); |
8612 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
8613 | return PCI_ERS_RESULT_RECOVERED; |
8614 | } |
8615 | |
8616 | /** |
8617 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. |
8618 | * @pdev: PCI device struct |
8619 | * |
8620 | * Description: This routine is called when the PCI bus has |
8621 | * permanently failed. |
8622 | */ |
8623 | static void ipr_pci_perm_failure(struct pci_dev *pdev) |
8624 | { |
8625 | unsigned long flags = 0; |
8626 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
8627 | int i; |
8628 | |
8629 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
8630 | if (ioa_cfg->probe_done) { |
8631 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) |
8632 | ioa_cfg->sdt_state = ABORT_DUMP; |
8633 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1; |
8634 | ioa_cfg->in_ioa_bringdown = 1; |
8635 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8636 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
8637 | ioa_cfg->hrrq[i].allow_cmds = 0; |
8638 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
8639 | } |
8640 | wmb(); |
8641 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type: IPR_SHUTDOWN_NONE); |
8642 | } else |
8643 | wake_up_all(&ioa_cfg->eeh_wait_q); |
8644 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
8645 | } |
8646 | |
8647 | /** |
8648 | * ipr_pci_error_detected - Called when a PCI error is detected. |
8649 | * @pdev: PCI device struct |
8650 | * @state: PCI channel state |
8651 | * |
8652 | * Description: Called when a PCI error is detected. |
8653 | * |
8654 | * Return value: |
8655 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT |
8656 | */ |
8657 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, |
8658 | pci_channel_state_t state) |
8659 | { |
8660 | switch (state) { |
8661 | case pci_channel_io_frozen: |
8662 | ipr_pci_frozen(pdev); |
8663 | return PCI_ERS_RESULT_CAN_RECOVER; |
8664 | case pci_channel_io_perm_failure: |
8665 | ipr_pci_perm_failure(pdev); |
8666 | return PCI_ERS_RESULT_DISCONNECT; |
8667 | default: |
8668 | break; |
8669 | } |
8670 | return PCI_ERS_RESULT_NEED_RESET; |
8671 | } |
8672 | |
8673 | /** |
8674 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) |
8675 | * @ioa_cfg: ioa cfg struct |
8676 | * |
8677 | * Description: This is the second phase of adapter initialization |
8678 | * This function takes care of initilizing the adapter to the point |
8679 | * where it can accept new commands. |
8680 | * Return value: |
8681 | * none |
8682 | **/ |
8683 | static void ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) |
8684 | { |
8685 | unsigned long host_lock_flags = 0; |
8686 | |
8687 | ENTER; |
8688 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
8689 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n" , ioa_cfg); |
8690 | ioa_cfg->probe_done = 1; |
8691 | if (ioa_cfg->needs_hard_reset) { |
8692 | ioa_cfg->needs_hard_reset = 0; |
8693 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type: IPR_SHUTDOWN_NONE); |
8694 | } else |
8695 | _ipr_initiate_ioa_reset(ioa_cfg, job_step: ipr_reset_enable_ioa, |
8696 | shutdown_type: IPR_SHUTDOWN_NONE); |
8697 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: host_lock_flags); |
8698 | |
8699 | LEAVE; |
8700 | } |
8701 | |
8702 | /** |
8703 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter |
8704 | * @ioa_cfg: ioa config struct |
8705 | * |
8706 | * Return value: |
8707 | * none |
8708 | **/ |
8709 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) |
8710 | { |
8711 | int i; |
8712 | |
8713 | if (ioa_cfg->ipr_cmnd_list) { |
8714 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { |
8715 | if (ioa_cfg->ipr_cmnd_list[i]) |
8716 | dma_pool_free(pool: ioa_cfg->ipr_cmd_pool, |
8717 | vaddr: ioa_cfg->ipr_cmnd_list[i], |
8718 | addr: ioa_cfg->ipr_cmnd_list_dma[i]); |
8719 | |
8720 | ioa_cfg->ipr_cmnd_list[i] = NULL; |
8721 | } |
8722 | } |
8723 | |
8724 | dma_pool_destroy(pool: ioa_cfg->ipr_cmd_pool); |
8725 | |
8726 | kfree(objp: ioa_cfg->ipr_cmnd_list); |
8727 | kfree(objp: ioa_cfg->ipr_cmnd_list_dma); |
8728 | ioa_cfg->ipr_cmnd_list = NULL; |
8729 | ioa_cfg->ipr_cmnd_list_dma = NULL; |
8730 | ioa_cfg->ipr_cmd_pool = NULL; |
8731 | } |
8732 | |
8733 | /** |
8734 | * ipr_free_mem - Frees memory allocated for an adapter |
8735 | * @ioa_cfg: ioa cfg struct |
8736 | * |
8737 | * Return value: |
8738 | * nothing |
8739 | **/ |
8740 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) |
8741 | { |
8742 | int i; |
8743 | |
8744 | kfree(objp: ioa_cfg->res_entries); |
8745 | dma_free_coherent(dev: &ioa_cfg->pdev->dev, size: sizeof(struct ipr_misc_cbs), |
8746 | cpu_addr: ioa_cfg->vpd_cbs, dma_handle: ioa_cfg->vpd_cbs_dma); |
8747 | ipr_free_cmd_blks(ioa_cfg); |
8748 | |
8749 | for (i = 0; i < ioa_cfg->hrrq_num; i++) |
8750 | dma_free_coherent(dev: &ioa_cfg->pdev->dev, |
8751 | size: sizeof(u32) * ioa_cfg->hrrq[i].size, |
8752 | cpu_addr: ioa_cfg->hrrq[i].host_rrq, |
8753 | dma_handle: ioa_cfg->hrrq[i].host_rrq_dma); |
8754 | |
8755 | dma_free_coherent(dev: &ioa_cfg->pdev->dev, size: ioa_cfg->cfg_table_size, |
8756 | cpu_addr: ioa_cfg->u.cfg_table, dma_handle: ioa_cfg->cfg_table_dma); |
8757 | |
8758 | for (i = 0; i < IPR_MAX_HCAMS; i++) { |
8759 | dma_free_coherent(dev: &ioa_cfg->pdev->dev, |
8760 | size: sizeof(struct ipr_hostrcb), |
8761 | cpu_addr: ioa_cfg->hostrcb[i], |
8762 | dma_handle: ioa_cfg->hostrcb_dma[i]); |
8763 | } |
8764 | |
8765 | ipr_free_dump(ioa_cfg); |
8766 | kfree(objp: ioa_cfg->trace); |
8767 | } |
8768 | |
8769 | /** |
8770 | * ipr_free_irqs - Free all allocated IRQs for the adapter. |
8771 | * @ioa_cfg: ipr cfg struct |
8772 | * |
8773 | * This function frees all allocated IRQs for the |
8774 | * specified adapter. |
8775 | * |
8776 | * Return value: |
8777 | * none |
8778 | **/ |
8779 | static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg) |
8780 | { |
8781 | struct pci_dev *pdev = ioa_cfg->pdev; |
8782 | int i; |
8783 | |
8784 | for (i = 0; i < ioa_cfg->nvectors; i++) |
8785 | free_irq(pci_irq_vector(dev: pdev, nr: i), &ioa_cfg->hrrq[i]); |
8786 | pci_free_irq_vectors(dev: pdev); |
8787 | } |
8788 | |
8789 | /** |
8790 | * ipr_free_all_resources - Free all allocated resources for an adapter. |
8791 | * @ioa_cfg: ioa config struct |
8792 | * |
8793 | * This function frees all allocated resources for the |
8794 | * specified adapter. |
8795 | * |
8796 | * Return value: |
8797 | * none |
8798 | **/ |
8799 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) |
8800 | { |
8801 | struct pci_dev *pdev = ioa_cfg->pdev; |
8802 | |
8803 | ENTER; |
8804 | ipr_free_irqs(ioa_cfg); |
8805 | if (ioa_cfg->reset_work_q) |
8806 | destroy_workqueue(wq: ioa_cfg->reset_work_q); |
8807 | iounmap(addr: ioa_cfg->hdw_dma_regs); |
8808 | pci_release_regions(pdev); |
8809 | ipr_free_mem(ioa_cfg); |
8810 | scsi_host_put(t: ioa_cfg->host); |
8811 | pci_disable_device(dev: pdev); |
8812 | LEAVE; |
8813 | } |
8814 | |
8815 | /** |
8816 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter |
8817 | * @ioa_cfg: ioa config struct |
8818 | * |
8819 | * Return value: |
8820 | * 0 on success / -ENOMEM on allocation failure |
8821 | **/ |
8822 | static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) |
8823 | { |
8824 | struct ipr_cmnd *ipr_cmd; |
8825 | struct ipr_ioarcb *ioarcb; |
8826 | dma_addr_t dma_addr; |
8827 | int i, entries_each_hrrq, hrrq_id = 0; |
8828 | |
8829 | ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, dev: &ioa_cfg->pdev->dev, |
8830 | size: sizeof(struct ipr_cmnd), align: 512, allocation: 0); |
8831 | |
8832 | if (!ioa_cfg->ipr_cmd_pool) |
8833 | return -ENOMEM; |
8834 | |
8835 | ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, size: sizeof(struct ipr_cmnd *), GFP_KERNEL); |
8836 | ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, size: sizeof(dma_addr_t), GFP_KERNEL); |
8837 | |
8838 | if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) { |
8839 | ipr_free_cmd_blks(ioa_cfg); |
8840 | return -ENOMEM; |
8841 | } |
8842 | |
8843 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8844 | if (ioa_cfg->hrrq_num > 1) { |
8845 | if (i == 0) { |
8846 | entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS; |
8847 | ioa_cfg->hrrq[i].min_cmd_id = 0; |
8848 | ioa_cfg->hrrq[i].max_cmd_id = |
8849 | (entries_each_hrrq - 1); |
8850 | } else { |
8851 | entries_each_hrrq = |
8852 | IPR_NUM_BASE_CMD_BLKS/ |
8853 | (ioa_cfg->hrrq_num - 1); |
8854 | ioa_cfg->hrrq[i].min_cmd_id = |
8855 | IPR_NUM_INTERNAL_CMD_BLKS + |
8856 | (i - 1) * entries_each_hrrq; |
8857 | ioa_cfg->hrrq[i].max_cmd_id = |
8858 | (IPR_NUM_INTERNAL_CMD_BLKS + |
8859 | i * entries_each_hrrq - 1); |
8860 | } |
8861 | } else { |
8862 | entries_each_hrrq = IPR_NUM_CMD_BLKS; |
8863 | ioa_cfg->hrrq[i].min_cmd_id = 0; |
8864 | ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1); |
8865 | } |
8866 | ioa_cfg->hrrq[i].size = entries_each_hrrq; |
8867 | } |
8868 | |
8869 | BUG_ON(ioa_cfg->hrrq_num == 0); |
8870 | |
8871 | i = IPR_NUM_CMD_BLKS - |
8872 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1; |
8873 | if (i > 0) { |
8874 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i; |
8875 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i; |
8876 | } |
8877 | |
8878 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { |
8879 | ipr_cmd = dma_pool_zalloc(pool: ioa_cfg->ipr_cmd_pool, |
8880 | GFP_KERNEL, handle: &dma_addr); |
8881 | |
8882 | if (!ipr_cmd) { |
8883 | ipr_free_cmd_blks(ioa_cfg); |
8884 | return -ENOMEM; |
8885 | } |
8886 | |
8887 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; |
8888 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; |
8889 | |
8890 | ioarcb = &ipr_cmd->ioarcb; |
8891 | ipr_cmd->dma_addr = dma_addr; |
8892 | if (ioa_cfg->sis64) |
8893 | ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); |
8894 | else |
8895 | ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); |
8896 | |
8897 | ioarcb->host_response_handle = cpu_to_be32(i << 2); |
8898 | if (ioa_cfg->sis64) { |
8899 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
8900 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); |
8901 | ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = |
8902 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); |
8903 | } else { |
8904 | ioarcb->write_ioadl_addr = |
8905 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); |
8906 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
8907 | ioarcb->ioasa_host_pci_addr = |
8908 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); |
8909 | } |
8910 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); |
8911 | ipr_cmd->cmd_index = i; |
8912 | ipr_cmd->ioa_cfg = ioa_cfg; |
8913 | ipr_cmd->sense_buffer_dma = dma_addr + |
8914 | offsetof(struct ipr_cmnd, sense_buffer); |
8915 | |
8916 | ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id; |
8917 | ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id]; |
8918 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
8919 | if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id) |
8920 | hrrq_id++; |
8921 | } |
8922 | |
8923 | return 0; |
8924 | } |
8925 | |
8926 | /** |
8927 | * ipr_alloc_mem - Allocate memory for an adapter |
8928 | * @ioa_cfg: ioa config struct |
8929 | * |
8930 | * Return value: |
8931 | * 0 on success / non-zero for error |
8932 | **/ |
8933 | static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) |
8934 | { |
8935 | struct pci_dev *pdev = ioa_cfg->pdev; |
8936 | int i, rc = -ENOMEM; |
8937 | |
8938 | ENTER; |
8939 | ioa_cfg->res_entries = kcalloc(n: ioa_cfg->max_devs_supported, |
8940 | size: sizeof(struct ipr_resource_entry), |
8941 | GFP_KERNEL); |
8942 | |
8943 | if (!ioa_cfg->res_entries) |
8944 | goto out; |
8945 | |
8946 | for (i = 0; i < ioa_cfg->max_devs_supported; i++) { |
8947 | list_add_tail(new: &ioa_cfg->res_entries[i].queue, head: &ioa_cfg->free_res_q); |
8948 | ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; |
8949 | } |
8950 | |
8951 | ioa_cfg->vpd_cbs = dma_alloc_coherent(dev: &pdev->dev, |
8952 | size: sizeof(struct ipr_misc_cbs), |
8953 | dma_handle: &ioa_cfg->vpd_cbs_dma, |
8954 | GFP_KERNEL); |
8955 | |
8956 | if (!ioa_cfg->vpd_cbs) |
8957 | goto out_free_res_entries; |
8958 | |
8959 | if (ipr_alloc_cmd_blks(ioa_cfg)) |
8960 | goto out_free_vpd_cbs; |
8961 | |
8962 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8963 | ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(dev: &pdev->dev, |
8964 | size: sizeof(u32) * ioa_cfg->hrrq[i].size, |
8965 | dma_handle: &ioa_cfg->hrrq[i].host_rrq_dma, |
8966 | GFP_KERNEL); |
8967 | |
8968 | if (!ioa_cfg->hrrq[i].host_rrq) { |
8969 | while (--i >= 0) |
8970 | dma_free_coherent(dev: &pdev->dev, |
8971 | size: sizeof(u32) * ioa_cfg->hrrq[i].size, |
8972 | cpu_addr: ioa_cfg->hrrq[i].host_rrq, |
8973 | dma_handle: ioa_cfg->hrrq[i].host_rrq_dma); |
8974 | goto out_ipr_free_cmd_blocks; |
8975 | } |
8976 | ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg; |
8977 | } |
8978 | |
8979 | ioa_cfg->u.cfg_table = dma_alloc_coherent(dev: &pdev->dev, |
8980 | size: ioa_cfg->cfg_table_size, |
8981 | dma_handle: &ioa_cfg->cfg_table_dma, |
8982 | GFP_KERNEL); |
8983 | |
8984 | if (!ioa_cfg->u.cfg_table) |
8985 | goto out_free_host_rrq; |
8986 | |
8987 | for (i = 0; i < IPR_MAX_HCAMS; i++) { |
8988 | ioa_cfg->hostrcb[i] = dma_alloc_coherent(dev: &pdev->dev, |
8989 | size: sizeof(struct ipr_hostrcb), |
8990 | dma_handle: &ioa_cfg->hostrcb_dma[i], |
8991 | GFP_KERNEL); |
8992 | |
8993 | if (!ioa_cfg->hostrcb[i]) |
8994 | goto out_free_hostrcb_dma; |
8995 | |
8996 | ioa_cfg->hostrcb[i]->hostrcb_dma = |
8997 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); |
8998 | ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; |
8999 | list_add_tail(new: &ioa_cfg->hostrcb[i]->queue, head: &ioa_cfg->hostrcb_free_q); |
9000 | } |
9001 | |
9002 | ioa_cfg->trace = kcalloc(IPR_NUM_TRACE_ENTRIES, |
9003 | size: sizeof(struct ipr_trace_entry), |
9004 | GFP_KERNEL); |
9005 | |
9006 | if (!ioa_cfg->trace) |
9007 | goto out_free_hostrcb_dma; |
9008 | |
9009 | rc = 0; |
9010 | out: |
9011 | LEAVE; |
9012 | return rc; |
9013 | |
9014 | out_free_hostrcb_dma: |
9015 | while (i-- > 0) { |
9016 | dma_free_coherent(dev: &pdev->dev, size: sizeof(struct ipr_hostrcb), |
9017 | cpu_addr: ioa_cfg->hostrcb[i], |
9018 | dma_handle: ioa_cfg->hostrcb_dma[i]); |
9019 | } |
9020 | dma_free_coherent(dev: &pdev->dev, size: ioa_cfg->cfg_table_size, |
9021 | cpu_addr: ioa_cfg->u.cfg_table, dma_handle: ioa_cfg->cfg_table_dma); |
9022 | out_free_host_rrq: |
9023 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
9024 | dma_free_coherent(dev: &pdev->dev, |
9025 | size: sizeof(u32) * ioa_cfg->hrrq[i].size, |
9026 | cpu_addr: ioa_cfg->hrrq[i].host_rrq, |
9027 | dma_handle: ioa_cfg->hrrq[i].host_rrq_dma); |
9028 | } |
9029 | out_ipr_free_cmd_blocks: |
9030 | ipr_free_cmd_blks(ioa_cfg); |
9031 | out_free_vpd_cbs: |
9032 | dma_free_coherent(dev: &pdev->dev, size: sizeof(struct ipr_misc_cbs), |
9033 | cpu_addr: ioa_cfg->vpd_cbs, dma_handle: ioa_cfg->vpd_cbs_dma); |
9034 | out_free_res_entries: |
9035 | kfree(objp: ioa_cfg->res_entries); |
9036 | goto out; |
9037 | } |
9038 | |
9039 | /** |
9040 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values |
9041 | * @ioa_cfg: ioa config struct |
9042 | * |
9043 | * Return value: |
9044 | * none |
9045 | **/ |
9046 | static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) |
9047 | { |
9048 | int i; |
9049 | |
9050 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { |
9051 | ioa_cfg->bus_attr[i].bus = i; |
9052 | ioa_cfg->bus_attr[i].qas_enabled = 0; |
9053 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; |
9054 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) |
9055 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; |
9056 | else |
9057 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; |
9058 | } |
9059 | } |
9060 | |
9061 | /** |
9062 | * ipr_init_regs - Initialize IOA registers |
9063 | * @ioa_cfg: ioa config struct |
9064 | * |
9065 | * Return value: |
9066 | * none |
9067 | **/ |
9068 | static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg) |
9069 | { |
9070 | const struct ipr_interrupt_offsets *p; |
9071 | struct ipr_interrupts *t; |
9072 | void __iomem *base; |
9073 | |
9074 | p = &ioa_cfg->chip_cfg->regs; |
9075 | t = &ioa_cfg->regs; |
9076 | base = ioa_cfg->hdw_dma_regs; |
9077 | |
9078 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; |
9079 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; |
9080 | t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; |
9081 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; |
9082 | t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; |
9083 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; |
9084 | t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; |
9085 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; |
9086 | t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; |
9087 | t->ioarrin_reg = base + p->ioarrin_reg; |
9088 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; |
9089 | t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; |
9090 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; |
9091 | t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; |
9092 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; |
9093 | t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; |
9094 | |
9095 | if (ioa_cfg->sis64) { |
9096 | t->init_feedback_reg = base + p->init_feedback_reg; |
9097 | t->dump_addr_reg = base + p->dump_addr_reg; |
9098 | t->dump_data_reg = base + p->dump_data_reg; |
9099 | t->endian_swap_reg = base + p->endian_swap_reg; |
9100 | } |
9101 | } |
9102 | |
9103 | /** |
9104 | * ipr_init_ioa_cfg - Initialize IOA config struct |
9105 | * @ioa_cfg: ioa config struct |
9106 | * @host: scsi host struct |
9107 | * @pdev: PCI dev struct |
9108 | * |
9109 | * Return value: |
9110 | * none |
9111 | **/ |
9112 | static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, |
9113 | struct Scsi_Host *host, struct pci_dev *pdev) |
9114 | { |
9115 | int i; |
9116 | |
9117 | ioa_cfg->host = host; |
9118 | ioa_cfg->pdev = pdev; |
9119 | ioa_cfg->log_level = ipr_log_level; |
9120 | ioa_cfg->doorbell = IPR_DOORBELL; |
9121 | sprintf(buf: ioa_cfg->eye_catcher, IPR_EYECATCHER); |
9122 | sprintf(buf: ioa_cfg->trace_start, IPR_TRACE_START_LABEL); |
9123 | sprintf(buf: ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); |
9124 | sprintf(buf: ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); |
9125 | sprintf(buf: ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); |
9126 | sprintf(buf: ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); |
9127 | |
9128 | INIT_LIST_HEAD(list: &ioa_cfg->hostrcb_free_q); |
9129 | INIT_LIST_HEAD(list: &ioa_cfg->hostrcb_pending_q); |
9130 | INIT_LIST_HEAD(list: &ioa_cfg->hostrcb_report_q); |
9131 | INIT_LIST_HEAD(list: &ioa_cfg->free_res_q); |
9132 | INIT_LIST_HEAD(list: &ioa_cfg->used_res_q); |
9133 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); |
9134 | INIT_WORK(&ioa_cfg->scsi_add_work_q, ipr_add_remove_thread); |
9135 | init_waitqueue_head(&ioa_cfg->reset_wait_q); |
9136 | init_waitqueue_head(&ioa_cfg->msi_wait_q); |
9137 | init_waitqueue_head(&ioa_cfg->eeh_wait_q); |
9138 | ioa_cfg->sdt_state = INACTIVE; |
9139 | |
9140 | ipr_initialize_bus_attr(ioa_cfg); |
9141 | ioa_cfg->max_devs_supported = ipr_max_devs; |
9142 | |
9143 | if (ioa_cfg->sis64) { |
9144 | host->max_channel = IPR_MAX_SIS64_BUSES; |
9145 | host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; |
9146 | host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; |
9147 | if (ipr_max_devs > IPR_MAX_SIS64_DEVS) |
9148 | ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; |
9149 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) |
9150 | + ((sizeof(struct ipr_config_table_entry64) |
9151 | * ioa_cfg->max_devs_supported))); |
9152 | } else { |
9153 | host->max_channel = IPR_VSET_BUS; |
9154 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; |
9155 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; |
9156 | if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) |
9157 | ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; |
9158 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) |
9159 | + ((sizeof(struct ipr_config_table_entry) |
9160 | * ioa_cfg->max_devs_supported))); |
9161 | } |
9162 | |
9163 | host->unique_id = host->host_no; |
9164 | host->max_cmd_len = IPR_MAX_CDB_LEN; |
9165 | host->can_queue = ioa_cfg->max_cmds; |
9166 | pci_set_drvdata(pdev, data: ioa_cfg); |
9167 | |
9168 | for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) { |
9169 | INIT_LIST_HEAD(list: &ioa_cfg->hrrq[i].hrrq_free_q); |
9170 | INIT_LIST_HEAD(list: &ioa_cfg->hrrq[i].hrrq_pending_q); |
9171 | spin_lock_init(&ioa_cfg->hrrq[i]._lock); |
9172 | if (i == 0) |
9173 | ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock; |
9174 | else |
9175 | ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock; |
9176 | } |
9177 | } |
9178 | |
9179 | /** |
9180 | * ipr_get_chip_info - Find adapter chip information |
9181 | * @dev_id: PCI device id struct |
9182 | * |
9183 | * Return value: |
9184 | * ptr to chip information on success / NULL on failure |
9185 | **/ |
9186 | static const struct ipr_chip_t * |
9187 | ipr_get_chip_info(const struct pci_device_id *dev_id) |
9188 | { |
9189 | int i; |
9190 | |
9191 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) |
9192 | if (ipr_chip[i].vendor == dev_id->vendor && |
9193 | ipr_chip[i].device == dev_id->device) |
9194 | return &ipr_chip[i]; |
9195 | return NULL; |
9196 | } |
9197 | |
9198 | /** |
9199 | * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete |
9200 | * during probe time |
9201 | * @ioa_cfg: ioa config struct |
9202 | * |
9203 | * Return value: |
9204 | * None |
9205 | **/ |
9206 | static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg) |
9207 | { |
9208 | struct pci_dev *pdev = ioa_cfg->pdev; |
9209 | |
9210 | if (pci_channel_offline(pdev)) { |
9211 | wait_event_timeout(ioa_cfg->eeh_wait_q, |
9212 | !pci_channel_offline(pdev), |
9213 | IPR_PCI_ERROR_RECOVERY_TIMEOUT); |
9214 | pci_restore_state(dev: pdev); |
9215 | } |
9216 | } |
9217 | |
9218 | static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg) |
9219 | { |
9220 | int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1; |
9221 | |
9222 | for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) { |
9223 | snprintf(buf: ioa_cfg->vectors_info[vec_idx].desc, size: n, |
9224 | fmt: "host%d-%d" , ioa_cfg->host->host_no, vec_idx); |
9225 | ioa_cfg->vectors_info[vec_idx]. |
9226 | desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0; |
9227 | } |
9228 | } |
9229 | |
9230 | static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg, |
9231 | struct pci_dev *pdev) |
9232 | { |
9233 | int i, rc; |
9234 | |
9235 | for (i = 1; i < ioa_cfg->nvectors; i++) { |
9236 | rc = request_irq(irq: pci_irq_vector(dev: pdev, nr: i), |
9237 | handler: ipr_isr_mhrrq, |
9238 | flags: 0, |
9239 | name: ioa_cfg->vectors_info[i].desc, |
9240 | dev: &ioa_cfg->hrrq[i]); |
9241 | if (rc) { |
9242 | while (--i > 0) |
9243 | free_irq(pci_irq_vector(dev: pdev, nr: i), |
9244 | &ioa_cfg->hrrq[i]); |
9245 | return rc; |
9246 | } |
9247 | } |
9248 | return 0; |
9249 | } |
9250 | |
9251 | /** |
9252 | * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). |
9253 | * @devp: PCI device struct |
9254 | * @irq: IRQ number |
9255 | * |
9256 | * Description: Simply set the msi_received flag to 1 indicating that |
9257 | * Message Signaled Interrupts are supported. |
9258 | * |
9259 | * Return value: |
9260 | * 0 on success / non-zero on failure |
9261 | **/ |
9262 | static irqreturn_t ipr_test_intr(int irq, void *devp) |
9263 | { |
9264 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; |
9265 | unsigned long lock_flags = 0; |
9266 | |
9267 | dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n" , irq); |
9268 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9269 | |
9270 | ioa_cfg->msi_received = 1; |
9271 | wake_up(&ioa_cfg->msi_wait_q); |
9272 | |
9273 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9274 | return IRQ_HANDLED; |
9275 | } |
9276 | |
9277 | /** |
9278 | * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. |
9279 | * @ioa_cfg: ioa config struct |
9280 | * @pdev: PCI device struct |
9281 | * |
9282 | * Description: This routine sets up and initiates a test interrupt to determine |
9283 | * if the interrupt is received via the ipr_test_intr() service routine. |
9284 | * If the tests fails, the driver will fall back to LSI. |
9285 | * |
9286 | * Return value: |
9287 | * 0 on success / non-zero on failure |
9288 | **/ |
9289 | static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev) |
9290 | { |
9291 | int rc; |
9292 | unsigned long lock_flags = 0; |
9293 | int irq = pci_irq_vector(dev: pdev, nr: 0); |
9294 | |
9295 | ENTER; |
9296 | |
9297 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9298 | init_waitqueue_head(&ioa_cfg->msi_wait_q); |
9299 | ioa_cfg->msi_received = 0; |
9300 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~IPR_PCII_IOA_TRANS_TO_OPER); |
9301 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, addr: ioa_cfg->regs.clr_interrupt_mask_reg32); |
9302 | readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
9303 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9304 | |
9305 | rc = request_irq(irq, handler: ipr_test_intr, flags: 0, IPR_NAME, dev: ioa_cfg); |
9306 | if (rc) { |
9307 | dev_err(&pdev->dev, "Can not assign irq %d\n" , irq); |
9308 | return rc; |
9309 | } else if (ipr_debug) |
9310 | dev_info(&pdev->dev, "IRQ assigned: %d\n" , irq); |
9311 | |
9312 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, addr: ioa_cfg->regs.sense_interrupt_reg32); |
9313 | readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
9314 | wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); |
9315 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9316 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~IPR_PCII_IOA_TRANS_TO_OPER); |
9317 | |
9318 | if (!ioa_cfg->msi_received) { |
9319 | /* MSI test failed */ |
9320 | dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n" ); |
9321 | rc = -EOPNOTSUPP; |
9322 | } else if (ipr_debug) |
9323 | dev_info(&pdev->dev, "MSI test succeeded.\n" ); |
9324 | |
9325 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9326 | |
9327 | free_irq(irq, ioa_cfg); |
9328 | |
9329 | LEAVE; |
9330 | |
9331 | return rc; |
9332 | } |
9333 | |
9334 | /* ipr_probe_ioa - Allocates memory and does first stage of initialization |
9335 | * @pdev: PCI device struct |
9336 | * @dev_id: PCI device id struct |
9337 | * |
9338 | * Return value: |
9339 | * 0 on success / non-zero on failure |
9340 | **/ |
9341 | static int ipr_probe_ioa(struct pci_dev *pdev, |
9342 | const struct pci_device_id *dev_id) |
9343 | { |
9344 | struct ipr_ioa_cfg *ioa_cfg; |
9345 | struct Scsi_Host *host; |
9346 | unsigned long ipr_regs_pci; |
9347 | void __iomem *ipr_regs; |
9348 | int rc = PCIBIOS_SUCCESSFUL; |
9349 | volatile u32 mask, uproc, interrupts; |
9350 | unsigned long lock_flags, driver_lock_flags; |
9351 | unsigned int irq_flag; |
9352 | |
9353 | ENTER; |
9354 | |
9355 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n" , pdev->irq); |
9356 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); |
9357 | |
9358 | if (!host) { |
9359 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n" ); |
9360 | rc = -ENOMEM; |
9361 | goto out; |
9362 | } |
9363 | |
9364 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; |
9365 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); |
9366 | |
9367 | ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); |
9368 | |
9369 | if (!ioa_cfg->ipr_chip) { |
9370 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n" , |
9371 | dev_id->vendor, dev_id->device); |
9372 | goto out_scsi_host_put; |
9373 | } |
9374 | |
9375 | /* set SIS 32 or SIS 64 */ |
9376 | ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; |
9377 | ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; |
9378 | ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr; |
9379 | ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds; |
9380 | |
9381 | if (ipr_transop_timeout) |
9382 | ioa_cfg->transop_timeout = ipr_transop_timeout; |
9383 | else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) |
9384 | ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; |
9385 | else |
9386 | ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; |
9387 | |
9388 | ioa_cfg->revid = pdev->revision; |
9389 | |
9390 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); |
9391 | |
9392 | ipr_regs_pci = pci_resource_start(pdev, 0); |
9393 | |
9394 | rc = pci_request_regions(pdev, IPR_NAME); |
9395 | if (rc < 0) { |
9396 | dev_err(&pdev->dev, |
9397 | "Couldn't register memory range of registers\n" ); |
9398 | goto out_scsi_host_put; |
9399 | } |
9400 | |
9401 | rc = pci_enable_device(dev: pdev); |
9402 | |
9403 | if (rc || pci_channel_offline(pdev)) { |
9404 | if (pci_channel_offline(pdev)) { |
9405 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9406 | rc = pci_enable_device(dev: pdev); |
9407 | } |
9408 | |
9409 | if (rc) { |
9410 | dev_err(&pdev->dev, "Cannot enable adapter\n" ); |
9411 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9412 | goto out_release_regions; |
9413 | } |
9414 | } |
9415 | |
9416 | ipr_regs = pci_ioremap_bar(pdev, bar: 0); |
9417 | |
9418 | if (!ipr_regs) { |
9419 | dev_err(&pdev->dev, |
9420 | "Couldn't map memory range of registers\n" ); |
9421 | rc = -ENOMEM; |
9422 | goto out_disable; |
9423 | } |
9424 | |
9425 | ioa_cfg->hdw_dma_regs = ipr_regs; |
9426 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; |
9427 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; |
9428 | |
9429 | ipr_init_regs(ioa_cfg); |
9430 | |
9431 | if (ioa_cfg->sis64) { |
9432 | rc = dma_set_mask_and_coherent(dev: &pdev->dev, DMA_BIT_MASK(64)); |
9433 | if (rc < 0) { |
9434 | dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n" ); |
9435 | rc = dma_set_mask_and_coherent(dev: &pdev->dev, |
9436 | DMA_BIT_MASK(32)); |
9437 | } |
9438 | } else |
9439 | rc = dma_set_mask_and_coherent(dev: &pdev->dev, DMA_BIT_MASK(32)); |
9440 | |
9441 | if (rc < 0) { |
9442 | dev_err(&pdev->dev, "Failed to set DMA mask\n" ); |
9443 | goto cleanup_nomem; |
9444 | } |
9445 | |
9446 | rc = pci_write_config_byte(dev: pdev, PCI_CACHE_LINE_SIZE, |
9447 | val: ioa_cfg->chip_cfg->cache_line_size); |
9448 | |
9449 | if (rc != PCIBIOS_SUCCESSFUL) { |
9450 | dev_err(&pdev->dev, "Write of cache line size failed\n" ); |
9451 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9452 | rc = -EIO; |
9453 | goto cleanup_nomem; |
9454 | } |
9455 | |
9456 | /* Issue MMIO read to ensure card is not in EEH */ |
9457 | interrupts = readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
9458 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9459 | |
9460 | if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) { |
9461 | dev_err(&pdev->dev, "The max number of MSIX is %d\n" , |
9462 | IPR_MAX_MSIX_VECTORS); |
9463 | ipr_number_of_msix = IPR_MAX_MSIX_VECTORS; |
9464 | } |
9465 | |
9466 | irq_flag = PCI_IRQ_LEGACY; |
9467 | if (ioa_cfg->ipr_chip->has_msi) |
9468 | irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX; |
9469 | rc = pci_alloc_irq_vectors(dev: pdev, min_vecs: 1, max_vecs: ipr_number_of_msix, flags: irq_flag); |
9470 | if (rc < 0) { |
9471 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9472 | goto cleanup_nomem; |
9473 | } |
9474 | ioa_cfg->nvectors = rc; |
9475 | |
9476 | if (!pdev->msi_enabled && !pdev->msix_enabled) |
9477 | ioa_cfg->clear_isr = 1; |
9478 | |
9479 | pci_set_master(dev: pdev); |
9480 | |
9481 | if (pci_channel_offline(pdev)) { |
9482 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9483 | pci_set_master(dev: pdev); |
9484 | if (pci_channel_offline(pdev)) { |
9485 | rc = -EIO; |
9486 | goto out_msi_disable; |
9487 | } |
9488 | } |
9489 | |
9490 | if (pdev->msi_enabled || pdev->msix_enabled) { |
9491 | rc = ipr_test_msi(ioa_cfg, pdev); |
9492 | switch (rc) { |
9493 | case 0: |
9494 | dev_info(&pdev->dev, |
9495 | "Request for %d MSI%ss succeeded." , ioa_cfg->nvectors, |
9496 | pdev->msix_enabled ? "-X" : "" ); |
9497 | break; |
9498 | case -EOPNOTSUPP: |
9499 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9500 | pci_free_irq_vectors(dev: pdev); |
9501 | |
9502 | ioa_cfg->nvectors = 1; |
9503 | ioa_cfg->clear_isr = 1; |
9504 | break; |
9505 | default: |
9506 | goto out_msi_disable; |
9507 | } |
9508 | } |
9509 | |
9510 | ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors, |
9511 | (unsigned int)num_online_cpus(), |
9512 | (unsigned int)IPR_MAX_HRRQ_NUM); |
9513 | |
9514 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) |
9515 | goto out_msi_disable; |
9516 | |
9517 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) |
9518 | goto out_msi_disable; |
9519 | |
9520 | rc = ipr_alloc_mem(ioa_cfg); |
9521 | if (rc < 0) { |
9522 | dev_err(&pdev->dev, |
9523 | "Couldn't allocate enough memory for device driver!\n" ); |
9524 | goto out_msi_disable; |
9525 | } |
9526 | |
9527 | /* Save away PCI config space for use following IOA reset */ |
9528 | rc = pci_save_state(dev: pdev); |
9529 | |
9530 | if (rc != PCIBIOS_SUCCESSFUL) { |
9531 | dev_err(&pdev->dev, "Failed to save PCI config space\n" ); |
9532 | rc = -EIO; |
9533 | goto cleanup_nolog; |
9534 | } |
9535 | |
9536 | /* |
9537 | * If HRRQ updated interrupt is not masked, or reset alert is set, |
9538 | * the card is in an unknown state and needs a hard reset |
9539 | */ |
9540 | mask = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg32); |
9541 | interrupts = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
9542 | uproc = readl(addr: ioa_cfg->regs.sense_uproc_interrupt_reg32); |
9543 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) |
9544 | ioa_cfg->needs_hard_reset = 1; |
9545 | if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices) |
9546 | ioa_cfg->needs_hard_reset = 1; |
9547 | if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) |
9548 | ioa_cfg->ioa_unit_checked = 1; |
9549 | |
9550 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9551 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~IPR_PCII_IOA_TRANS_TO_OPER); |
9552 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9553 | |
9554 | if (pdev->msi_enabled || pdev->msix_enabled) { |
9555 | name_msi_vectors(ioa_cfg); |
9556 | rc = request_irq(irq: pci_irq_vector(dev: pdev, nr: 0), handler: ipr_isr, flags: 0, |
9557 | name: ioa_cfg->vectors_info[0].desc, |
9558 | dev: &ioa_cfg->hrrq[0]); |
9559 | if (!rc) |
9560 | rc = ipr_request_other_msi_irqs(ioa_cfg, pdev); |
9561 | } else { |
9562 | rc = request_irq(irq: pdev->irq, handler: ipr_isr, |
9563 | IRQF_SHARED, |
9564 | IPR_NAME, dev: &ioa_cfg->hrrq[0]); |
9565 | } |
9566 | if (rc) { |
9567 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n" , |
9568 | pdev->irq, rc); |
9569 | goto cleanup_nolog; |
9570 | } |
9571 | |
9572 | if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || |
9573 | (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { |
9574 | ioa_cfg->needs_warm_reset = 1; |
9575 | ioa_cfg->reset = ipr_reset_slot_reset; |
9576 | |
9577 | ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d" , |
9578 | WQ_MEM_RECLAIM, host->host_no); |
9579 | |
9580 | if (!ioa_cfg->reset_work_q) { |
9581 | dev_err(&pdev->dev, "Couldn't register reset workqueue\n" ); |
9582 | rc = -ENOMEM; |
9583 | goto out_free_irq; |
9584 | } |
9585 | } else |
9586 | ioa_cfg->reset = ipr_reset_start_bist; |
9587 | |
9588 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
9589 | list_add_tail(new: &ioa_cfg->queue, head: &ipr_ioa_head); |
9590 | spin_unlock_irqrestore(lock: &ipr_driver_lock, flags: driver_lock_flags); |
9591 | |
9592 | LEAVE; |
9593 | out: |
9594 | return rc; |
9595 | |
9596 | out_free_irq: |
9597 | ipr_free_irqs(ioa_cfg); |
9598 | cleanup_nolog: |
9599 | ipr_free_mem(ioa_cfg); |
9600 | out_msi_disable: |
9601 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9602 | pci_free_irq_vectors(dev: pdev); |
9603 | cleanup_nomem: |
9604 | iounmap(addr: ipr_regs); |
9605 | out_disable: |
9606 | pci_disable_device(dev: pdev); |
9607 | out_release_regions: |
9608 | pci_release_regions(pdev); |
9609 | out_scsi_host_put: |
9610 | scsi_host_put(t: host); |
9611 | goto out; |
9612 | } |
9613 | |
9614 | /** |
9615 | * ipr_initiate_ioa_bringdown - Bring down an adapter |
9616 | * @ioa_cfg: ioa config struct |
9617 | * @shutdown_type: shutdown type |
9618 | * |
9619 | * Description: This function will initiate bringing down the adapter. |
9620 | * This consists of issuing an IOA shutdown to the adapter |
9621 | * to flush the cache, and running BIST. |
9622 | * If the caller needs to wait on the completion of the reset, |
9623 | * the caller must sleep on the reset_wait_q. |
9624 | * |
9625 | * Return value: |
9626 | * none |
9627 | **/ |
9628 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, |
9629 | enum ipr_shutdown_type shutdown_type) |
9630 | { |
9631 | ENTER; |
9632 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) |
9633 | ioa_cfg->sdt_state = ABORT_DUMP; |
9634 | ioa_cfg->reset_retries = 0; |
9635 | ioa_cfg->in_ioa_bringdown = 1; |
9636 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); |
9637 | LEAVE; |
9638 | } |
9639 | |
9640 | /** |
9641 | * __ipr_remove - Remove a single adapter |
9642 | * @pdev: pci device struct |
9643 | * |
9644 | * Adapter hot plug remove entry point. |
9645 | * |
9646 | * Return value: |
9647 | * none |
9648 | **/ |
9649 | static void __ipr_remove(struct pci_dev *pdev) |
9650 | { |
9651 | unsigned long host_lock_flags = 0; |
9652 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
9653 | int i; |
9654 | unsigned long driver_lock_flags; |
9655 | ENTER; |
9656 | |
9657 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
9658 | while (ioa_cfg->in_reset_reload) { |
9659 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: host_lock_flags); |
9660 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
9661 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
9662 | } |
9663 | |
9664 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
9665 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
9666 | ioa_cfg->hrrq[i].removing_ioa = 1; |
9667 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
9668 | } |
9669 | wmb(); |
9670 | ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type: IPR_SHUTDOWN_NORMAL); |
9671 | |
9672 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: host_lock_flags); |
9673 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
9674 | flush_work(work: &ioa_cfg->work_q); |
9675 | if (ioa_cfg->reset_work_q) |
9676 | flush_workqueue(ioa_cfg->reset_work_q); |
9677 | INIT_LIST_HEAD(list: &ioa_cfg->used_res_q); |
9678 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
9679 | |
9680 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
9681 | list_del(entry: &ioa_cfg->queue); |
9682 | spin_unlock_irqrestore(lock: &ipr_driver_lock, flags: driver_lock_flags); |
9683 | |
9684 | if (ioa_cfg->sdt_state == ABORT_DUMP) |
9685 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
9686 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: host_lock_flags); |
9687 | |
9688 | ipr_free_all_resources(ioa_cfg); |
9689 | |
9690 | LEAVE; |
9691 | } |
9692 | |
9693 | /** |
9694 | * ipr_remove - IOA hot plug remove entry point |
9695 | * @pdev: pci device struct |
9696 | * |
9697 | * Adapter hot plug remove entry point. |
9698 | * |
9699 | * Return value: |
9700 | * none |
9701 | **/ |
9702 | static void ipr_remove(struct pci_dev *pdev) |
9703 | { |
9704 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
9705 | |
9706 | ENTER; |
9707 | |
9708 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
9709 | &ipr_trace_attr); |
9710 | ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, |
9711 | &ipr_dump_attr); |
9712 | sysfs_remove_bin_file(kobj: &ioa_cfg->host->shost_dev.kobj, |
9713 | attr: &ipr_ioa_async_err_log); |
9714 | scsi_remove_host(ioa_cfg->host); |
9715 | |
9716 | __ipr_remove(pdev); |
9717 | |
9718 | LEAVE; |
9719 | } |
9720 | |
9721 | /** |
9722 | * ipr_probe - Adapter hot plug add entry point |
9723 | * @pdev: pci device struct |
9724 | * @dev_id: pci device ID |
9725 | * |
9726 | * Return value: |
9727 | * 0 on success / non-zero on failure |
9728 | **/ |
9729 | static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id) |
9730 | { |
9731 | struct ipr_ioa_cfg *ioa_cfg; |
9732 | unsigned long flags; |
9733 | int rc, i; |
9734 | |
9735 | rc = ipr_probe_ioa(pdev, dev_id); |
9736 | |
9737 | if (rc) |
9738 | return rc; |
9739 | |
9740 | ioa_cfg = pci_get_drvdata(pdev); |
9741 | ipr_probe_ioa_part2(ioa_cfg); |
9742 | |
9743 | rc = scsi_add_host(host: ioa_cfg->host, dev: &pdev->dev); |
9744 | |
9745 | if (rc) { |
9746 | __ipr_remove(pdev); |
9747 | return rc; |
9748 | } |
9749 | |
9750 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, |
9751 | &ipr_trace_attr); |
9752 | |
9753 | if (rc) { |
9754 | scsi_remove_host(ioa_cfg->host); |
9755 | __ipr_remove(pdev); |
9756 | return rc; |
9757 | } |
9758 | |
9759 | rc = sysfs_create_bin_file(kobj: &ioa_cfg->host->shost_dev.kobj, |
9760 | attr: &ipr_ioa_async_err_log); |
9761 | |
9762 | if (rc) { |
9763 | ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, |
9764 | &ipr_dump_attr); |
9765 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
9766 | &ipr_trace_attr); |
9767 | scsi_remove_host(ioa_cfg->host); |
9768 | __ipr_remove(pdev); |
9769 | return rc; |
9770 | } |
9771 | |
9772 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, |
9773 | &ipr_dump_attr); |
9774 | |
9775 | if (rc) { |
9776 | sysfs_remove_bin_file(kobj: &ioa_cfg->host->shost_dev.kobj, |
9777 | attr: &ipr_ioa_async_err_log); |
9778 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
9779 | &ipr_trace_attr); |
9780 | scsi_remove_host(ioa_cfg->host); |
9781 | __ipr_remove(pdev); |
9782 | return rc; |
9783 | } |
9784 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
9785 | ioa_cfg->scan_enabled = 1; |
9786 | schedule_work(work: &ioa_cfg->work_q); |
9787 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
9788 | |
9789 | ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight; |
9790 | |
9791 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
9792 | for (i = 1; i < ioa_cfg->hrrq_num; i++) { |
9793 | irq_poll_init(&ioa_cfg->hrrq[i].iopoll, |
9794 | ioa_cfg->iopoll_weight, ipr_iopoll); |
9795 | } |
9796 | } |
9797 | |
9798 | scsi_scan_host(ioa_cfg->host); |
9799 | |
9800 | return 0; |
9801 | } |
9802 | |
9803 | /** |
9804 | * ipr_shutdown - Shutdown handler. |
9805 | * @pdev: pci device struct |
9806 | * |
9807 | * This function is invoked upon system shutdown/reboot. It will issue |
9808 | * an adapter shutdown to the adapter to flush the write cache. |
9809 | * |
9810 | * Return value: |
9811 | * none |
9812 | **/ |
9813 | static void ipr_shutdown(struct pci_dev *pdev) |
9814 | { |
9815 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
9816 | unsigned long lock_flags = 0; |
9817 | enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL; |
9818 | int i; |
9819 | |
9820 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9821 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
9822 | ioa_cfg->iopoll_weight = 0; |
9823 | for (i = 1; i < ioa_cfg->hrrq_num; i++) |
9824 | irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); |
9825 | } |
9826 | |
9827 | while (ioa_cfg->in_reset_reload) { |
9828 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9829 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
9830 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9831 | } |
9832 | |
9833 | if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) |
9834 | shutdown_type = IPR_SHUTDOWN_QUIESCE; |
9835 | |
9836 | ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type); |
9837 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9838 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
9839 | if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) { |
9840 | ipr_free_irqs(ioa_cfg); |
9841 | pci_disable_device(dev: ioa_cfg->pdev); |
9842 | } |
9843 | } |
9844 | |
9845 | static struct pci_device_id ipr_pci_table[] = { |
9846 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
9847 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, |
9848 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
9849 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, |
9850 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
9851 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, |
9852 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
9853 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, |
9854 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
9855 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, |
9856 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
9857 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, |
9858 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
9859 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, |
9860 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
9861 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, |
9862 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9863 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
9864 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
9865 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
9866 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
9867 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9868 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
9869 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
9870 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9871 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
9872 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
9873 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
9874 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
9875 | IPR_USE_LONG_TRANSOP_TIMEOUT}, |
9876 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
9877 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
9878 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9879 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9880 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, |
9881 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9882 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9883 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, |
9884 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9885 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, |
9886 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9887 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, |
9888 | IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, |
9889 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
9890 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, |
9891 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
9892 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, |
9893 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
9894 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, |
9895 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9896 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
9897 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, |
9898 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9899 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9900 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, |
9901 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9902 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, |
9903 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9904 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, |
9905 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9906 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 }, |
9907 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9908 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 }, |
9909 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9910 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, |
9911 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9912 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, |
9913 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9914 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, |
9915 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9916 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, |
9917 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9918 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 }, |
9919 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9920 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, |
9921 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9922 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 }, |
9923 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9924 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 }, |
9925 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9926 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 }, |
9927 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9928 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 }, |
9929 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9930 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 }, |
9931 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9932 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 }, |
9933 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9934 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 }, |
9935 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9936 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 }, |
9937 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9938 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 }, |
9939 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9940 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 }, |
9941 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9942 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 }, |
9943 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9944 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 }, |
9945 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9946 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 }, |
9947 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9948 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 }, |
9949 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9950 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 }, |
9951 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, |
9952 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 }, |
9953 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, |
9954 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 }, |
9955 | { } |
9956 | }; |
9957 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); |
9958 | |
9959 | static const struct pci_error_handlers ipr_err_handler = { |
9960 | .error_detected = ipr_pci_error_detected, |
9961 | .mmio_enabled = ipr_pci_mmio_enabled, |
9962 | .slot_reset = ipr_pci_slot_reset, |
9963 | }; |
9964 | |
9965 | static struct pci_driver ipr_driver = { |
9966 | .name = IPR_NAME, |
9967 | .id_table = ipr_pci_table, |
9968 | .probe = ipr_probe, |
9969 | .remove = ipr_remove, |
9970 | .shutdown = ipr_shutdown, |
9971 | .err_handler = &ipr_err_handler, |
9972 | }; |
9973 | |
9974 | /** |
9975 | * ipr_halt_done - Shutdown prepare completion |
9976 | * @ipr_cmd: ipr command struct |
9977 | * |
9978 | * Return value: |
9979 | * none |
9980 | **/ |
9981 | static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) |
9982 | { |
9983 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
9984 | } |
9985 | |
9986 | /** |
9987 | * ipr_halt - Issue shutdown prepare to all adapters |
9988 | * @nb: Notifier block |
9989 | * @event: Notifier event |
9990 | * @buf: Notifier data (unused) |
9991 | * |
9992 | * Return value: |
9993 | * NOTIFY_OK on success / NOTIFY_DONE on failure |
9994 | **/ |
9995 | static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) |
9996 | { |
9997 | struct ipr_cmnd *ipr_cmd; |
9998 | struct ipr_ioa_cfg *ioa_cfg; |
9999 | unsigned long flags = 0, driver_lock_flags; |
10000 | |
10001 | if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) |
10002 | return NOTIFY_DONE; |
10003 | |
10004 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
10005 | |
10006 | list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { |
10007 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
10008 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds || |
10009 | (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) { |
10010 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
10011 | continue; |
10012 | } |
10013 | |
10014 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
10015 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
10016 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
10017 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; |
10018 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; |
10019 | |
10020 | ipr_do_req(ipr_cmd, done: ipr_halt_done, timeout_func: ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
10021 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
10022 | } |
10023 | spin_unlock_irqrestore(lock: &ipr_driver_lock, flags: driver_lock_flags); |
10024 | |
10025 | return NOTIFY_OK; |
10026 | } |
10027 | |
10028 | static struct notifier_block ipr_notifier = { |
10029 | ipr_halt, NULL, 0 |
10030 | }; |
10031 | |
10032 | /** |
10033 | * ipr_init - Module entry point |
10034 | * |
10035 | * Return value: |
10036 | * 0 on success / negative value on failure |
10037 | **/ |
10038 | static int __init ipr_init(void) |
10039 | { |
10040 | int rc; |
10041 | |
10042 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n" , |
10043 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); |
10044 | |
10045 | register_reboot_notifier(&ipr_notifier); |
10046 | rc = pci_register_driver(&ipr_driver); |
10047 | if (rc) { |
10048 | unregister_reboot_notifier(&ipr_notifier); |
10049 | return rc; |
10050 | } |
10051 | |
10052 | return 0; |
10053 | } |
10054 | |
10055 | /** |
10056 | * ipr_exit - Module unload |
10057 | * |
10058 | * Module unload entry point. |
10059 | * |
10060 | * Return value: |
10061 | * none |
10062 | **/ |
10063 | static void __exit ipr_exit(void) |
10064 | { |
10065 | unregister_reboot_notifier(&ipr_notifier); |
10066 | pci_unregister_driver(dev: &ipr_driver); |
10067 | } |
10068 | |
10069 | module_init(ipr_init); |
10070 | module_exit(ipr_exit); |
10071 | |