]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * ipr.c -- driver for IBM Power Linux RAID adapters | |
3 | * | |
4 | * Written By: Brian King <brking@us.ibm.com>, IBM Corporation | |
5 | * | |
6 | * Copyright (C) 2003, 2004 IBM Corporation | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Notes: | |
26 | * | |
27 | * This driver is used to control the following SCSI adapters: | |
28 | * | |
29 | * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B | |
30 | * | |
31 | * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter | |
32 | * PCI-X Dual Channel Ultra 320 SCSI Adapter | |
33 | * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card | |
34 | * Embedded SCSI adapter on p615 and p655 systems | |
35 | * | |
36 | * Supported Hardware Features: | |
37 | * - Ultra 320 SCSI controller | |
38 | * - PCI-X host interface | |
39 | * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine | |
40 | * - Non-Volatile Write Cache | |
41 | * - Supports attachment of non-RAID disks, tape, and optical devices | |
42 | * - RAID Levels 0, 5, 10 | |
43 | * - Hot spare | |
44 | * - Background Parity Checking | |
45 | * - Background Data Scrubbing | |
46 | * - Ability to increase the capacity of an existing RAID 5 disk array | |
47 | * by adding disks | |
48 | * | |
49 | * Driver Features: | |
50 | * - Tagged command queuing | |
51 | * - Adapter microcode download | |
52 | * - PCI hot plug | |
53 | * - SCSI device hot plug | |
54 | * | |
55 | */ | |
56 | ||
1da177e4 LT |
57 | #include <linux/fs.h> |
58 | #include <linux/init.h> | |
59 | #include <linux/types.h> | |
60 | #include <linux/errno.h> | |
61 | #include <linux/kernel.h> | |
5a0e3ad6 | 62 | #include <linux/slab.h> |
4d4dd706 | 63 | #include <linux/vmalloc.h> |
1da177e4 LT |
64 | #include <linux/ioport.h> |
65 | #include <linux/delay.h> | |
66 | #include <linux/pci.h> | |
67 | #include <linux/wait.h> | |
68 | #include <linux/spinlock.h> | |
69 | #include <linux/sched.h> | |
70 | #include <linux/interrupt.h> | |
71 | #include <linux/blkdev.h> | |
72 | #include <linux/firmware.h> | |
73 | #include <linux/module.h> | |
74 | #include <linux/moduleparam.h> | |
35a39691 | 75 | #include <linux/libata.h> |
0ce3a7e5 | 76 | #include <linux/hdreg.h> |
f72919ec | 77 | #include <linux/reboot.h> |
3e7ebdfa | 78 | #include <linux/stringify.h> |
1da177e4 LT |
79 | #include <asm/io.h> |
80 | #include <asm/irq.h> | |
81 | #include <asm/processor.h> | |
82 | #include <scsi/scsi.h> | |
83 | #include <scsi/scsi_host.h> | |
84 | #include <scsi/scsi_tcq.h> | |
85 | #include <scsi/scsi_eh.h> | |
86 | #include <scsi/scsi_cmnd.h> | |
1da177e4 LT |
87 | #include "ipr.h" |
88 | ||
89 | /* | |
90 | * Global Data | |
91 | */ | |
b7d68ca3 | 92 | static LIST_HEAD(ipr_ioa_head); |
1da177e4 LT |
93 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; |
94 | static unsigned int ipr_max_speed = 1; | |
95 | static int ipr_testmode = 0; | |
96 | static unsigned int ipr_fastfail = 0; | |
5469cb5b | 97 | static unsigned int ipr_transop_timeout = 0; |
d3c74871 | 98 | static unsigned int ipr_debug = 0; |
3e7ebdfa | 99 | static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; |
ac09c349 | 100 | static unsigned int ipr_dual_ioa_raid = 1; |
cb05cbb3 | 101 | static unsigned int ipr_number_of_msix = 16; |
4fdd7c7a | 102 | static unsigned int ipr_fast_reboot; |
1da177e4 LT |
103 | static DEFINE_SPINLOCK(ipr_driver_lock); |
104 | ||
105 | /* This table describes the differences between DMA controller chips */ | |
106 | static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { | |
60e7486b | 107 | { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ |
1da177e4 | 108 | .mailbox = 0x0042C, |
89aad428 | 109 | .max_cmds = 100, |
1da177e4 | 110 | .cache_line_size = 0x20, |
7dd21308 | 111 | .clear_isr = 1, |
b53d124a | 112 | .iopoll_weight = 0, |
1da177e4 LT |
113 | { |
114 | .set_interrupt_mask_reg = 0x0022C, | |
115 | .clr_interrupt_mask_reg = 0x00230, | |
214777ba | 116 | .clr_interrupt_mask_reg32 = 0x00230, |
1da177e4 | 117 | .sense_interrupt_mask_reg = 0x0022C, |
214777ba | 118 | .sense_interrupt_mask_reg32 = 0x0022C, |
1da177e4 | 119 | .clr_interrupt_reg = 0x00228, |
214777ba | 120 | .clr_interrupt_reg32 = 0x00228, |
1da177e4 | 121 | .sense_interrupt_reg = 0x00224, |
214777ba | 122 | .sense_interrupt_reg32 = 0x00224, |
1da177e4 LT |
123 | .ioarrin_reg = 0x00404, |
124 | .sense_uproc_interrupt_reg = 0x00214, | |
214777ba | 125 | .sense_uproc_interrupt_reg32 = 0x00214, |
1da177e4 | 126 | .set_uproc_interrupt_reg = 0x00214, |
214777ba WB |
127 | .set_uproc_interrupt_reg32 = 0x00214, |
128 | .clr_uproc_interrupt_reg = 0x00218, | |
129 | .clr_uproc_interrupt_reg32 = 0x00218 | |
1da177e4 LT |
130 | } |
131 | }, | |
132 | { /* Snipe and Scamp */ | |
133 | .mailbox = 0x0052C, | |
89aad428 | 134 | .max_cmds = 100, |
1da177e4 | 135 | .cache_line_size = 0x20, |
7dd21308 | 136 | .clear_isr = 1, |
b53d124a | 137 | .iopoll_weight = 0, |
1da177e4 LT |
138 | { |
139 | .set_interrupt_mask_reg = 0x00288, | |
140 | .clr_interrupt_mask_reg = 0x0028C, | |
214777ba | 141 | .clr_interrupt_mask_reg32 = 0x0028C, |
1da177e4 | 142 | .sense_interrupt_mask_reg = 0x00288, |
214777ba | 143 | .sense_interrupt_mask_reg32 = 0x00288, |
1da177e4 | 144 | .clr_interrupt_reg = 0x00284, |
214777ba | 145 | .clr_interrupt_reg32 = 0x00284, |
1da177e4 | 146 | .sense_interrupt_reg = 0x00280, |
214777ba | 147 | .sense_interrupt_reg32 = 0x00280, |
1da177e4 LT |
148 | .ioarrin_reg = 0x00504, |
149 | .sense_uproc_interrupt_reg = 0x00290, | |
214777ba | 150 | .sense_uproc_interrupt_reg32 = 0x00290, |
1da177e4 | 151 | .set_uproc_interrupt_reg = 0x00290, |
214777ba WB |
152 | .set_uproc_interrupt_reg32 = 0x00290, |
153 | .clr_uproc_interrupt_reg = 0x00294, | |
154 | .clr_uproc_interrupt_reg32 = 0x00294 | |
1da177e4 LT |
155 | } |
156 | }, | |
a74c1639 | 157 | { /* CRoC */ |
110def85 | 158 | .mailbox = 0x00044, |
89aad428 | 159 | .max_cmds = 1000, |
a74c1639 | 160 | .cache_line_size = 0x20, |
7dd21308 | 161 | .clear_isr = 0, |
b53d124a | 162 | .iopoll_weight = 64, |
a74c1639 WB |
163 | { |
164 | .set_interrupt_mask_reg = 0x00010, | |
165 | .clr_interrupt_mask_reg = 0x00018, | |
214777ba | 166 | .clr_interrupt_mask_reg32 = 0x0001C, |
a74c1639 | 167 | .sense_interrupt_mask_reg = 0x00010, |
214777ba | 168 | .sense_interrupt_mask_reg32 = 0x00014, |
a74c1639 | 169 | .clr_interrupt_reg = 0x00008, |
214777ba | 170 | .clr_interrupt_reg32 = 0x0000C, |
a74c1639 | 171 | .sense_interrupt_reg = 0x00000, |
214777ba | 172 | .sense_interrupt_reg32 = 0x00004, |
a74c1639 WB |
173 | .ioarrin_reg = 0x00070, |
174 | .sense_uproc_interrupt_reg = 0x00020, | |
214777ba | 175 | .sense_uproc_interrupt_reg32 = 0x00024, |
a74c1639 | 176 | .set_uproc_interrupt_reg = 0x00020, |
214777ba | 177 | .set_uproc_interrupt_reg32 = 0x00024, |
dcbad00e | 178 | .clr_uproc_interrupt_reg = 0x00028, |
214777ba WB |
179 | .clr_uproc_interrupt_reg32 = 0x0002C, |
180 | .init_feedback_reg = 0x0005C, | |
dcbad00e | 181 | .dump_addr_reg = 0x00064, |
8701f185 WB |
182 | .dump_data_reg = 0x00068, |
183 | .endian_swap_reg = 0x00084 | |
a74c1639 WB |
184 | } |
185 | }, | |
1da177e4 LT |
186 | }; |
187 | ||
188 | static const struct ipr_chip_t ipr_chip[] = { | |
cb237ef7 WB |
189 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
190 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, | |
191 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, | |
192 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, | |
193 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, | |
194 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, | |
195 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, | |
196 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, | |
00da9ffa WX |
197 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, |
198 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] } | |
1da177e4 LT |
199 | }; |
200 | ||
203fa3fe | 201 | static int ipr_max_bus_speeds[] = { |
1da177e4 LT |
202 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE |
203 | }; | |
204 | ||
205 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); | |
206 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); | |
207 | module_param_named(max_speed, ipr_max_speed, uint, 0); | |
208 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); | |
209 | module_param_named(log_level, ipr_log_level, uint, 0); | |
210 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); | |
211 | module_param_named(testmode, ipr_testmode, int, 0); | |
212 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); | |
2cf22be0 | 213 | module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); |
1da177e4 LT |
214 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); |
215 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); | |
216 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); | |
2cf22be0 | 217 | module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); |
d3c74871 | 218 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); |
ac09c349 BK |
219 | module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); |
220 | MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); | |
3e7ebdfa WB |
221 | module_param_named(max_devs, ipr_max_devs, int, 0); |
222 | MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " | |
223 | "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); | |
05a6538a | 224 | module_param_named(number_of_msix, ipr_number_of_msix, int, 0); |
cb05cbb3 | 225 | MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:16)"); |
4fdd7c7a BK |
226 | module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR); |
227 | MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)"); | |
1da177e4 LT |
228 | MODULE_LICENSE("GPL"); |
229 | MODULE_VERSION(IPR_DRIVER_VERSION); | |
230 | ||
1da177e4 LT |
231 | /* A constant array of IOASCs/URCs/Error Messages */ |
232 | static const | |
233 | struct ipr_error_table_t ipr_error_table[] = { | |
933916f3 | 234 | {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
235 | "8155: An unknown error was received"}, |
236 | {0x00330000, 0, 0, | |
237 | "Soft underlength error"}, | |
238 | {0x005A0000, 0, 0, | |
239 | "Command to be cancelled not found"}, | |
240 | {0x00808000, 0, 0, | |
241 | "Qualified success"}, | |
933916f3 | 242 | {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 243 | "FFFE: Soft device bus error recovered by the IOA"}, |
933916f3 | 244 | {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 245 | "4101: Soft device bus fabric error"}, |
5aa3a333 WB |
246 | {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, |
247 | "FFFC: Logical block guard error recovered by the device"}, | |
248 | {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, | |
249 | "FFFC: Logical block reference tag error recovered by the device"}, | |
250 | {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, | |
251 | "4171: Recovered scatter list tag / sequence number error"}, | |
252 | {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, | |
253 | "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, | |
254 | {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, | |
255 | "4171: Recovered logical block sequence number error on IOA to Host transfer"}, | |
256 | {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, | |
257 | "FFFD: Recovered logical block reference tag error detected by the IOA"}, | |
258 | {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, | |
259 | "FFFD: Logical block guard error recovered by the IOA"}, | |
933916f3 | 260 | {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 261 | "FFF9: Device sector reassign successful"}, |
933916f3 | 262 | {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 263 | "FFF7: Media error recovered by device rewrite procedures"}, |
933916f3 | 264 | {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 265 | "7001: IOA sector reassignment successful"}, |
933916f3 | 266 | {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 267 | "FFF9: Soft media error. Sector reassignment recommended"}, |
933916f3 | 268 | {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 269 | "FFF7: Media error recovered by IOA rewrite procedures"}, |
933916f3 | 270 | {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 271 | "FF3D: Soft PCI bus error recovered by the IOA"}, |
933916f3 | 272 | {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 273 | "FFF6: Device hardware error recovered by the IOA"}, |
933916f3 | 274 | {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 275 | "FFF6: Device hardware error recovered by the device"}, |
933916f3 | 276 | {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 277 | "FF3D: Soft IOA error recovered by the IOA"}, |
933916f3 | 278 | {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 279 | "FFFA: Undefined device response recovered by the IOA"}, |
933916f3 | 280 | {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 281 | "FFF6: Device bus error, message or command phase"}, |
933916f3 | 282 | {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, |
35a39691 | 283 | "FFFE: Task Management Function failed"}, |
933916f3 | 284 | {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 285 | "FFF6: Failure prediction threshold exceeded"}, |
933916f3 | 286 | {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 287 | "8009: Impending cache battery pack failure"}, |
ed7bd661 | 288 | {0x02040100, 0, 0, |
289 | "Logical Unit in process of becoming ready"}, | |
290 | {0x02040200, 0, 0, | |
291 | "Initializing command required"}, | |
1da177e4 LT |
292 | {0x02040400, 0, 0, |
293 | "34FF: Disk device format in progress"}, | |
ed7bd661 | 294 | {0x02040C00, 0, 0, |
295 | "Logical unit not accessible, target port in unavailable state"}, | |
65f56475 BK |
296 | {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, |
297 | "9070: IOA requested reset"}, | |
1da177e4 LT |
298 | {0x023F0000, 0, 0, |
299 | "Synchronization required"}, | |
ed7bd661 | 300 | {0x02408500, 0, 0, |
301 | "IOA microcode download required"}, | |
302 | {0x02408600, 0, 0, | |
303 | "Device bus connection is prohibited by host"}, | |
1da177e4 LT |
304 | {0x024E0000, 0, 0, |
305 | "No ready, IOA shutdown"}, | |
306 | {0x025A0000, 0, 0, | |
307 | "Not ready, IOA has been shutdown"}, | |
933916f3 | 308 | {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
309 | "3020: Storage subsystem configuration error"}, |
310 | {0x03110B00, 0, 0, | |
311 | "FFF5: Medium error, data unreadable, recommend reassign"}, | |
312 | {0x03110C00, 0, 0, | |
313 | "7000: Medium error, data unreadable, do not reassign"}, | |
933916f3 | 314 | {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 315 | "FFF3: Disk media format bad"}, |
933916f3 | 316 | {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 317 | "3002: Addressed device failed to respond to selection"}, |
933916f3 | 318 | {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 319 | "3100: Device bus error"}, |
933916f3 | 320 | {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
321 | "3109: IOA timed out a device command"}, |
322 | {0x04088000, 0, 0, | |
323 | "3120: SCSI bus is not operational"}, | |
933916f3 | 324 | {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 325 | "4100: Hard device bus fabric error"}, |
5aa3a333 WB |
326 | {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, |
327 | "310C: Logical block guard error detected by the device"}, | |
328 | {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, | |
329 | "310C: Logical block reference tag error detected by the device"}, | |
330 | {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, | |
331 | "4170: Scatter list tag / sequence number error"}, | |
332 | {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, | |
333 | "8150: Logical block CRC error on IOA to Host transfer"}, | |
334 | {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, | |
335 | "4170: Logical block sequence number error on IOA to Host transfer"}, | |
336 | {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, | |
337 | "310D: Logical block reference tag error detected by the IOA"}, | |
338 | {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, | |
339 | "310D: Logical block guard error detected by the IOA"}, | |
933916f3 | 340 | {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 341 | "9000: IOA reserved area data check"}, |
933916f3 | 342 | {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 343 | "9001: IOA reserved area invalid data pattern"}, |
933916f3 | 344 | {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 345 | "9002: IOA reserved area LRC error"}, |
5aa3a333 WB |
346 | {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, |
347 | "Hardware Error, IOA metadata access error"}, | |
933916f3 | 348 | {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 349 | "102E: Out of alternate sectors for disk storage"}, |
933916f3 | 350 | {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 351 | "FFF4: Data transfer underlength error"}, |
933916f3 | 352 | {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 353 | "FFF4: Data transfer overlength error"}, |
933916f3 | 354 | {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 355 | "3400: Logical unit failure"}, |
933916f3 | 356 | {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 357 | "FFF4: Device microcode is corrupt"}, |
933916f3 | 358 | {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
359 | "8150: PCI bus error"}, |
360 | {0x04430000, 1, 0, | |
361 | "Unsupported device bus message received"}, | |
933916f3 | 362 | {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 363 | "FFF4: Disk device problem"}, |
933916f3 | 364 | {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 365 | "8150: Permanent IOA failure"}, |
933916f3 | 366 | {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 367 | "3010: Disk device returned wrong response to IOA"}, |
933916f3 | 368 | {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
369 | "8151: IOA microcode error"}, |
370 | {0x04448500, 0, 0, | |
371 | "Device bus status error"}, | |
933916f3 | 372 | {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 373 | "8157: IOA error requiring IOA reset to recover"}, |
35a39691 BK |
374 | {0x04448700, 0, 0, |
375 | "ATA device status error"}, | |
1da177e4 LT |
376 | {0x04490000, 0, 0, |
377 | "Message reject received from the device"}, | |
933916f3 | 378 | {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 379 | "8008: A permanent cache battery pack failure occurred"}, |
933916f3 | 380 | {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 381 | "9090: Disk unit has been modified after the last known status"}, |
933916f3 | 382 | {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 383 | "9081: IOA detected device error"}, |
933916f3 | 384 | {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 385 | "9082: IOA detected device error"}, |
933916f3 | 386 | {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 387 | "3110: Device bus error, message or command phase"}, |
933916f3 | 388 | {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, |
35a39691 | 389 | "3110: SAS Command / Task Management Function failed"}, |
933916f3 | 390 | {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 391 | "9091: Incorrect hardware configuration change has been detected"}, |
933916f3 | 392 | {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 393 | "9073: Invalid multi-adapter configuration"}, |
933916f3 | 394 | {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 395 | "4010: Incorrect connection between cascaded expanders"}, |
933916f3 | 396 | {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 397 | "4020: Connections exceed IOA design limits"}, |
933916f3 | 398 | {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 399 | "4030: Incorrect multipath connection"}, |
933916f3 | 400 | {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 401 | "4110: Unsupported enclosure function"}, |
ed7bd661 | 402 | {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL, |
403 | "4120: SAS cable VPD cannot be read"}, | |
933916f3 | 404 | {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
405 | "FFF4: Command to logical unit failed"}, |
406 | {0x05240000, 1, 0, | |
407 | "Illegal request, invalid request type or request packet"}, | |
408 | {0x05250000, 0, 0, | |
409 | "Illegal request, invalid resource handle"}, | |
b0df54bb BK |
410 | {0x05258000, 0, 0, |
411 | "Illegal request, commands not allowed to this device"}, | |
412 | {0x05258100, 0, 0, | |
413 | "Illegal request, command not allowed to a secondary adapter"}, | |
5aa3a333 WB |
414 | {0x05258200, 0, 0, |
415 | "Illegal request, command not allowed to a non-optimized resource"}, | |
1da177e4 LT |
416 | {0x05260000, 0, 0, |
417 | "Illegal request, invalid field in parameter list"}, | |
418 | {0x05260100, 0, 0, | |
419 | "Illegal request, parameter not supported"}, | |
420 | {0x05260200, 0, 0, | |
421 | "Illegal request, parameter value invalid"}, | |
422 | {0x052C0000, 0, 0, | |
423 | "Illegal request, command sequence error"}, | |
b0df54bb BK |
424 | {0x052C8000, 1, 0, |
425 | "Illegal request, dual adapter support not enabled"}, | |
ed7bd661 | 426 | {0x052C8100, 1, 0, |
427 | "Illegal request, another cable connector was physically disabled"}, | |
428 | {0x054E8000, 1, 0, | |
429 | "Illegal request, inconsistent group id/group count"}, | |
933916f3 | 430 | {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 431 | "9031: Array protection temporarily suspended, protection resuming"}, |
933916f3 | 432 | {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 433 | "9040: Array protection temporarily suspended, protection resuming"}, |
ed7bd661 | 434 | {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL, |
435 | "4080: IOA exceeded maximum operating temperature"}, | |
436 | {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL, | |
437 | "4085: Service required"}, | |
933916f3 | 438 | {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 439 | "3140: Device bus not ready to ready transition"}, |
933916f3 | 440 | {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
441 | "FFFB: SCSI bus was reset"}, |
442 | {0x06290500, 0, 0, | |
443 | "FFFE: SCSI bus transition to single ended"}, | |
444 | {0x06290600, 0, 0, | |
445 | "FFFE: SCSI bus transition to LVD"}, | |
933916f3 | 446 | {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 447 | "FFFB: SCSI bus was reset by another initiator"}, |
933916f3 | 448 | {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 449 | "3029: A device replacement has occurred"}, |
ed7bd661 | 450 | {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL, |
451 | "4102: Device bus fabric performance degradation"}, | |
933916f3 | 452 | {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 453 | "9051: IOA cache data exists for a missing or failed device"}, |
933916f3 | 454 | {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 455 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, |
933916f3 | 456 | {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 457 | "9025: Disk unit is not supported at its physical location"}, |
933916f3 | 458 | {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 459 | "3020: IOA detected a SCSI bus configuration error"}, |
933916f3 | 460 | {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 461 | "3150: SCSI bus configuration error"}, |
933916f3 | 462 | {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 463 | "9074: Asymmetric advanced function disk configuration"}, |
933916f3 | 464 | {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 465 | "4040: Incomplete multipath connection between IOA and enclosure"}, |
933916f3 | 466 | {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 467 | "4041: Incomplete multipath connection between enclosure and device"}, |
933916f3 | 468 | {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 469 | "9075: Incomplete multipath connection between IOA and remote IOA"}, |
933916f3 | 470 | {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 471 | "9076: Configuration error, missing remote IOA"}, |
933916f3 | 472 | {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 473 | "4050: Enclosure does not support a required multipath function"}, |
ed7bd661 | 474 | {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL, |
475 | "4121: Configuration error, required cable is missing"}, | |
476 | {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL, | |
477 | "4122: Cable is not plugged into the correct location on remote IOA"}, | |
478 | {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL, | |
479 | "4123: Configuration error, invalid cable vital product data"}, | |
480 | {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL, | |
481 | "4124: Configuration error, both cable ends are plugged into the same IOA"}, | |
b75424fc WB |
482 | {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, |
483 | "4070: Logically bad block written on device"}, | |
933916f3 | 484 | {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 485 | "9041: Array protection temporarily suspended"}, |
933916f3 | 486 | {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 487 | "9042: Corrupt array parity detected on specified device"}, |
933916f3 | 488 | {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 489 | "9030: Array no longer protected due to missing or failed disk unit"}, |
933916f3 | 490 | {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 491 | "9071: Link operational transition"}, |
933916f3 | 492 | {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 493 | "9072: Link not operational transition"}, |
933916f3 | 494 | {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 495 | "9032: Array exposed but still protected"}, |
e435340c BK |
496 | {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, |
497 | "70DD: Device forced failed by disrupt device command"}, | |
933916f3 | 498 | {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 499 | "4061: Multipath redundancy level got better"}, |
933916f3 | 500 | {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 501 | "4060: Multipath redundancy level got worse"}, |
f8ee25d7 WX |
502 | {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL, |
503 | "9083: Device raw mode enabled"}, | |
504 | {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL, | |
505 | "9084: Device raw mode disabled"}, | |
1da177e4 LT |
506 | {0x07270000, 0, 0, |
507 | "Failure due to other device"}, | |
933916f3 | 508 | {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 509 | "9008: IOA does not support functions expected by devices"}, |
933916f3 | 510 | {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 511 | "9010: Cache data associated with attached devices cannot be found"}, |
933916f3 | 512 | {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 513 | "9011: Cache data belongs to devices other than those attached"}, |
933916f3 | 514 | {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 515 | "9020: Array missing 2 or more devices with only 1 device present"}, |
933916f3 | 516 | {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 517 | "9021: Array missing 2 or more devices with 2 or more devices present"}, |
933916f3 | 518 | {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 519 | "9022: Exposed array is missing a required device"}, |
933916f3 | 520 | {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 521 | "9023: Array member(s) not at required physical locations"}, |
933916f3 | 522 | {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 523 | "9024: Array not functional due to present hardware configuration"}, |
933916f3 | 524 | {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 525 | "9026: Array not functional due to present hardware configuration"}, |
933916f3 | 526 | {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 527 | "9027: Array is missing a device and parity is out of sync"}, |
933916f3 | 528 | {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 529 | "9028: Maximum number of arrays already exist"}, |
933916f3 | 530 | {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 531 | "9050: Required cache data cannot be located for a disk unit"}, |
933916f3 | 532 | {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 533 | "9052: Cache data exists for a device that has been modified"}, |
933916f3 | 534 | {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 535 | "9054: IOA resources not available due to previous problems"}, |
933916f3 | 536 | {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 537 | "9092: Disk unit requires initialization before use"}, |
933916f3 | 538 | {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 539 | "9029: Incorrect hardware configuration change has been detected"}, |
933916f3 | 540 | {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 541 | "9060: One or more disk pairs are missing from an array"}, |
933916f3 | 542 | {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 543 | "9061: One or more disks are missing from an array"}, |
933916f3 | 544 | {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 545 | "9062: One or more disks are missing from an array"}, |
933916f3 | 546 | {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 547 | "9063: Maximum number of functional arrays has been exceeded"}, |
ed7bd661 | 548 | {0x07279A00, 0, 0, |
549 | "Data protect, other volume set problem"}, | |
1da177e4 LT |
550 | {0x0B260000, 0, 0, |
551 | "Aborted command, invalid descriptor"}, | |
ed7bd661 | 552 | {0x0B3F9000, 0, 0, |
553 | "Target operating conditions have changed, dual adapter takeover"}, | |
554 | {0x0B530200, 0, 0, | |
555 | "Aborted command, medium removal prevented"}, | |
1da177e4 | 556 | {0x0B5A0000, 0, 0, |
ed7bd661 | 557 | "Command terminated by host"}, |
558 | {0x0B5B8000, 0, 0, | |
559 | "Aborted command, command terminated by host"} | |
1da177e4 LT |
560 | }; |
561 | ||
562 | static const struct ipr_ses_table_entry ipr_ses_table[] = { | |
563 | { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
564 | { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
565 | { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ | |
566 | { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ | |
567 | { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ | |
568 | { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ | |
569 | { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
570 | { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
571 | { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
572 | { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
573 | { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, | |
574 | { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
575 | { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } | |
576 | }; | |
577 | ||
578 | /* | |
579 | * Function Prototypes | |
580 | */ | |
581 | static int ipr_reset_alert(struct ipr_cmnd *); | |
582 | static void ipr_process_ccn(struct ipr_cmnd *); | |
583 | static void ipr_process_error(struct ipr_cmnd *); | |
584 | static void ipr_reset_ioa_job(struct ipr_cmnd *); | |
585 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, | |
586 | enum ipr_shutdown_type); | |
587 | ||
588 | #ifdef CONFIG_SCSI_IPR_TRACE | |
589 | /** | |
590 | * ipr_trc_hook - Add a trace entry to the driver trace | |
591 | * @ipr_cmd: ipr command struct | |
592 | * @type: trace type | |
593 | * @add_data: additional data | |
594 | * | |
595 | * Return value: | |
596 | * none | |
597 | **/ | |
598 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, | |
599 | u8 type, u32 add_data) | |
600 | { | |
601 | struct ipr_trace_entry *trace_entry; | |
602 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
bb7c5433 | 603 | unsigned int trace_index; |
1da177e4 | 604 | |
bb7c5433 BK |
605 | trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK; |
606 | trace_entry = &ioa_cfg->trace[trace_index]; | |
1da177e4 LT |
607 | trace_entry->time = jiffies; |
608 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; | |
609 | trace_entry->type = type; | |
a32c055f WB |
610 | if (ipr_cmd->ioa_cfg->sis64) |
611 | trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; | |
612 | else | |
613 | trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; | |
35a39691 | 614 | trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; |
1da177e4 LT |
615 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; |
616 | trace_entry->u.add_data = add_data; | |
56d6aa33 | 617 | wmb(); |
1da177e4 LT |
618 | } |
619 | #else | |
203fa3fe | 620 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0) |
1da177e4 LT |
621 | #endif |
622 | ||
172cd6e1 BK |
623 | /** |
624 | * ipr_lock_and_done - Acquire lock and complete command | |
625 | * @ipr_cmd: ipr command struct | |
626 | * | |
627 | * Return value: | |
628 | * none | |
629 | **/ | |
630 | static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd) | |
631 | { | |
632 | unsigned long lock_flags; | |
633 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
634 | ||
635 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
636 | ipr_cmd->done(ipr_cmd); | |
637 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
638 | } | |
639 | ||
1da177e4 LT |
640 | /** |
641 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse | |
642 | * @ipr_cmd: ipr command struct | |
643 | * | |
644 | * Return value: | |
645 | * none | |
646 | **/ | |
647 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
648 | { | |
649 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
96d21f00 WB |
650 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
651 | struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; | |
a32c055f | 652 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
05a6538a | 653 | int hrrq_id; |
1da177e4 | 654 | |
05a6538a | 655 | hrrq_id = ioarcb->cmd_pkt.hrrq_id; |
1da177e4 | 656 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); |
05a6538a | 657 | ioarcb->cmd_pkt.hrrq_id = hrrq_id; |
a32c055f | 658 | ioarcb->data_transfer_length = 0; |
1da177e4 | 659 | ioarcb->read_data_transfer_length = 0; |
a32c055f | 660 | ioarcb->ioadl_len = 0; |
1da177e4 | 661 | ioarcb->read_ioadl_len = 0; |
a32c055f | 662 | |
96d21f00 | 663 | if (ipr_cmd->ioa_cfg->sis64) { |
a32c055f WB |
664 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
665 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); | |
96d21f00 WB |
666 | ioasa64->u.gata.status = 0; |
667 | } else { | |
a32c055f WB |
668 | ioarcb->write_ioadl_addr = |
669 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); | |
670 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
96d21f00 | 671 | ioasa->u.gata.status = 0; |
a32c055f WB |
672 | } |
673 | ||
96d21f00 WB |
674 | ioasa->hdr.ioasc = 0; |
675 | ioasa->hdr.residual_data_len = 0; | |
1da177e4 | 676 | ipr_cmd->scsi_cmd = NULL; |
35a39691 | 677 | ipr_cmd->qc = NULL; |
1da177e4 LT |
678 | ipr_cmd->sense_buffer[0] = 0; |
679 | ipr_cmd->dma_use_sg = 0; | |
680 | } | |
681 | ||
682 | /** | |
683 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block | |
684 | * @ipr_cmd: ipr command struct | |
685 | * | |
686 | * Return value: | |
687 | * none | |
688 | **/ | |
172cd6e1 BK |
689 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd, |
690 | void (*fast_done) (struct ipr_cmnd *)) | |
1da177e4 LT |
691 | { |
692 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
693 | ipr_cmd->u.scratch = 0; | |
694 | ipr_cmd->sibling = NULL; | |
6cdb0817 | 695 | ipr_cmd->eh_comp = NULL; |
172cd6e1 | 696 | ipr_cmd->fast_done = fast_done; |
1da177e4 LT |
697 | init_timer(&ipr_cmd->timer); |
698 | } | |
699 | ||
700 | /** | |
00bfef2c | 701 | * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block |
1da177e4 LT |
702 | * @ioa_cfg: ioa config struct |
703 | * | |
704 | * Return value: | |
705 | * pointer to ipr command struct | |
706 | **/ | |
707 | static | |
05a6538a | 708 | struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq) |
1da177e4 | 709 | { |
05a6538a | 710 | struct ipr_cmnd *ipr_cmd = NULL; |
711 | ||
712 | if (likely(!list_empty(&hrrq->hrrq_free_q))) { | |
713 | ipr_cmd = list_entry(hrrq->hrrq_free_q.next, | |
714 | struct ipr_cmnd, queue); | |
715 | list_del(&ipr_cmd->queue); | |
716 | } | |
1da177e4 | 717 | |
1da177e4 LT |
718 | |
719 | return ipr_cmd; | |
720 | } | |
721 | ||
00bfef2c BK |
722 | /** |
723 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it | |
724 | * @ioa_cfg: ioa config struct | |
725 | * | |
726 | * Return value: | |
727 | * pointer to ipr command struct | |
728 | **/ | |
729 | static | |
730 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) | |
731 | { | |
05a6538a | 732 | struct ipr_cmnd *ipr_cmd = |
733 | __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]); | |
172cd6e1 | 734 | ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done); |
00bfef2c BK |
735 | return ipr_cmd; |
736 | } | |
737 | ||
1da177e4 LT |
738 | /** |
739 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts | |
740 | * @ioa_cfg: ioa config struct | |
741 | * @clr_ints: interrupts to clear | |
742 | * | |
743 | * This function masks all interrupts on the adapter, then clears the | |
744 | * interrupts specified in the mask | |
745 | * | |
746 | * Return value: | |
747 | * none | |
748 | **/ | |
749 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, | |
750 | u32 clr_ints) | |
751 | { | |
752 | volatile u32 int_reg; | |
56d6aa33 | 753 | int i; |
1da177e4 LT |
754 | |
755 | /* Stop new interrupts */ | |
56d6aa33 | 756 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
757 | spin_lock(&ioa_cfg->hrrq[i]._lock); | |
758 | ioa_cfg->hrrq[i].allow_interrupts = 0; | |
759 | spin_unlock(&ioa_cfg->hrrq[i]._lock); | |
760 | } | |
761 | wmb(); | |
1da177e4 LT |
762 | |
763 | /* Set interrupt mask to stop all new interrupts */ | |
214777ba WB |
764 | if (ioa_cfg->sis64) |
765 | writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); | |
766 | else | |
767 | writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); | |
1da177e4 LT |
768 | |
769 | /* Clear any pending interrupts */ | |
214777ba WB |
770 | if (ioa_cfg->sis64) |
771 | writel(~0, ioa_cfg->regs.clr_interrupt_reg); | |
772 | writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); | |
1da177e4 LT |
773 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
774 | } | |
775 | ||
776 | /** | |
777 | * ipr_save_pcix_cmd_reg - Save PCI-X command register | |
778 | * @ioa_cfg: ioa config struct | |
779 | * | |
780 | * Return value: | |
781 | * 0 on success / -EIO on failure | |
782 | **/ | |
783 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
784 | { | |
785 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
786 | ||
7dce0e1c BK |
787 | if (pcix_cmd_reg == 0) |
788 | return 0; | |
1da177e4 LT |
789 | |
790 | if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
791 | &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
792 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
793 | return -EIO; | |
794 | } | |
795 | ||
796 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; | |
797 | return 0; | |
798 | } | |
799 | ||
800 | /** | |
801 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register | |
802 | * @ioa_cfg: ioa config struct | |
803 | * | |
804 | * Return value: | |
805 | * 0 on success / -EIO on failure | |
806 | **/ | |
807 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
808 | { | |
809 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
810 | ||
811 | if (pcix_cmd_reg) { | |
812 | if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
813 | ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
814 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); | |
815 | return -EIO; | |
816 | } | |
1da177e4 LT |
817 | } |
818 | ||
819 | return 0; | |
820 | } | |
821 | ||
35a39691 BK |
822 | /** |
823 | * ipr_sata_eh_done - done function for aborted SATA commands | |
824 | * @ipr_cmd: ipr command struct | |
825 | * | |
826 | * This function is invoked for ops generated to SATA | |
827 | * devices which are being aborted. | |
828 | * | |
829 | * Return value: | |
830 | * none | |
831 | **/ | |
832 | static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) | |
833 | { | |
35a39691 BK |
834 | struct ata_queued_cmd *qc = ipr_cmd->qc; |
835 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
836 | ||
837 | qc->err_mask |= AC_ERR_OTHER; | |
838 | sata_port->ioasa.status |= ATA_BUSY; | |
05a6538a | 839 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
35a39691 BK |
840 | ata_qc_complete(qc); |
841 | } | |
842 | ||
1da177e4 LT |
843 | /** |
844 | * ipr_scsi_eh_done - mid-layer done function for aborted ops | |
845 | * @ipr_cmd: ipr command struct | |
846 | * | |
847 | * This function is invoked by the interrupt handler for | |
848 | * ops generated by the SCSI mid-layer which are being aborted. | |
849 | * | |
850 | * Return value: | |
851 | * none | |
852 | **/ | |
853 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) | |
854 | { | |
1da177e4 LT |
855 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
856 | ||
857 | scsi_cmd->result |= (DID_ERROR << 16); | |
858 | ||
63015bc9 | 859 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
1da177e4 | 860 | scsi_cmd->scsi_done(scsi_cmd); |
6cdb0817 BK |
861 | if (ipr_cmd->eh_comp) |
862 | complete(ipr_cmd->eh_comp); | |
05a6538a | 863 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
1da177e4 LT |
864 | } |
865 | ||
866 | /** | |
867 | * ipr_fail_all_ops - Fails all outstanding ops. | |
868 | * @ioa_cfg: ioa config struct | |
869 | * | |
870 | * This function fails all outstanding ops. | |
871 | * | |
872 | * Return value: | |
873 | * none | |
874 | **/ | |
875 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) | |
876 | { | |
877 | struct ipr_cmnd *ipr_cmd, *temp; | |
05a6538a | 878 | struct ipr_hrr_queue *hrrq; |
1da177e4 LT |
879 | |
880 | ENTER; | |
05a6538a | 881 | for_each_hrrq(hrrq, ioa_cfg) { |
56d6aa33 | 882 | spin_lock(&hrrq->_lock); |
05a6538a | 883 | list_for_each_entry_safe(ipr_cmd, |
884 | temp, &hrrq->hrrq_pending_q, queue) { | |
885 | list_del(&ipr_cmd->queue); | |
1da177e4 | 886 | |
05a6538a | 887 | ipr_cmd->s.ioasa.hdr.ioasc = |
888 | cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); | |
889 | ipr_cmd->s.ioasa.hdr.ilid = | |
890 | cpu_to_be32(IPR_DRIVER_ILID); | |
1da177e4 | 891 | |
05a6538a | 892 | if (ipr_cmd->scsi_cmd) |
893 | ipr_cmd->done = ipr_scsi_eh_done; | |
894 | else if (ipr_cmd->qc) | |
895 | ipr_cmd->done = ipr_sata_eh_done; | |
1da177e4 | 896 | |
05a6538a | 897 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, |
898 | IPR_IOASC_IOA_WAS_RESET); | |
899 | del_timer(&ipr_cmd->timer); | |
900 | ipr_cmd->done(ipr_cmd); | |
901 | } | |
56d6aa33 | 902 | spin_unlock(&hrrq->_lock); |
1da177e4 | 903 | } |
1da177e4 LT |
904 | LEAVE; |
905 | } | |
906 | ||
a32c055f WB |
907 | /** |
908 | * ipr_send_command - Send driver initiated requests. | |
909 | * @ipr_cmd: ipr command struct | |
910 | * | |
911 | * This function sends a command to the adapter using the correct write call. | |
912 | * In the case of sis64, calculate the ioarcb size required. Then or in the | |
913 | * appropriate bits. | |
914 | * | |
915 | * Return value: | |
916 | * none | |
917 | **/ | |
918 | static void ipr_send_command(struct ipr_cmnd *ipr_cmd) | |
919 | { | |
920 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
921 | dma_addr_t send_dma_addr = ipr_cmd->dma_addr; | |
922 | ||
923 | if (ioa_cfg->sis64) { | |
924 | /* The default size is 256 bytes */ | |
925 | send_dma_addr |= 0x1; | |
926 | ||
927 | /* If the number of ioadls * size of ioadl > 128 bytes, | |
928 | then use a 512 byte ioarcb */ | |
929 | if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) | |
930 | send_dma_addr |= 0x4; | |
931 | writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); | |
932 | } else | |
933 | writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); | |
934 | } | |
935 | ||
1da177e4 LT |
936 | /** |
937 | * ipr_do_req - Send driver initiated requests. | |
938 | * @ipr_cmd: ipr command struct | |
939 | * @done: done function | |
940 | * @timeout_func: timeout function | |
941 | * @timeout: timeout value | |
942 | * | |
943 | * This function sends the specified command to the adapter with the | |
944 | * timeout given. The done function is invoked on command completion. | |
945 | * | |
946 | * Return value: | |
947 | * none | |
948 | **/ | |
949 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, | |
950 | void (*done) (struct ipr_cmnd *), | |
951 | void (*timeout_func) (struct ipr_cmnd *), u32 timeout) | |
952 | { | |
05a6538a | 953 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
1da177e4 LT |
954 | |
955 | ipr_cmd->done = done; | |
956 | ||
957 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
958 | ipr_cmd->timer.expires = jiffies + timeout; | |
959 | ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; | |
960 | ||
961 | add_timer(&ipr_cmd->timer); | |
962 | ||
963 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); | |
964 | ||
a32c055f | 965 | ipr_send_command(ipr_cmd); |
1da177e4 LT |
966 | } |
967 | ||
968 | /** | |
969 | * ipr_internal_cmd_done - Op done function for an internally generated op. | |
970 | * @ipr_cmd: ipr command struct | |
971 | * | |
972 | * This function is the op done function for an internally generated, | |
973 | * blocking op. It simply wakes the sleeping thread. | |
974 | * | |
975 | * Return value: | |
976 | * none | |
977 | **/ | |
978 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) | |
979 | { | |
980 | if (ipr_cmd->sibling) | |
981 | ipr_cmd->sibling = NULL; | |
982 | else | |
983 | complete(&ipr_cmd->completion); | |
984 | } | |
985 | ||
a32c055f WB |
986 | /** |
987 | * ipr_init_ioadl - initialize the ioadl for the correct SIS type | |
988 | * @ipr_cmd: ipr command struct | |
989 | * @dma_addr: dma address | |
990 | * @len: transfer length | |
991 | * @flags: ioadl flag value | |
992 | * | |
993 | * This function initializes an ioadl in the case where there is only a single | |
994 | * descriptor. | |
995 | * | |
996 | * Return value: | |
997 | * nothing | |
998 | **/ | |
999 | static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, | |
1000 | u32 len, int flags) | |
1001 | { | |
1002 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; | |
1003 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; | |
1004 | ||
1005 | ipr_cmd->dma_use_sg = 1; | |
1006 | ||
1007 | if (ipr_cmd->ioa_cfg->sis64) { | |
1008 | ioadl64->flags = cpu_to_be32(flags); | |
1009 | ioadl64->data_len = cpu_to_be32(len); | |
1010 | ioadl64->address = cpu_to_be64(dma_addr); | |
1011 | ||
1012 | ipr_cmd->ioarcb.ioadl_len = | |
1013 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); | |
1014 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); | |
1015 | } else { | |
1016 | ioadl->flags_and_data_len = cpu_to_be32(flags | len); | |
1017 | ioadl->address = cpu_to_be32(dma_addr); | |
1018 | ||
1019 | if (flags == IPR_IOADL_FLAGS_READ_LAST) { | |
1020 | ipr_cmd->ioarcb.read_ioadl_len = | |
1021 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
1022 | ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); | |
1023 | } else { | |
1024 | ipr_cmd->ioarcb.ioadl_len = | |
1025 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
1026 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); | |
1027 | } | |
1028 | } | |
1029 | } | |
1030 | ||
1da177e4 LT |
1031 | /** |
1032 | * ipr_send_blocking_cmd - Send command and sleep on its completion. | |
1033 | * @ipr_cmd: ipr command struct | |
1034 | * @timeout_func: function to invoke if command times out | |
1035 | * @timeout: timeout | |
1036 | * | |
1037 | * Return value: | |
1038 | * none | |
1039 | **/ | |
1040 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, | |
1041 | void (*timeout_func) (struct ipr_cmnd *ipr_cmd), | |
1042 | u32 timeout) | |
1043 | { | |
1044 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1045 | ||
1046 | init_completion(&ipr_cmd->completion); | |
1047 | ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); | |
1048 | ||
1049 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
1050 | wait_for_completion(&ipr_cmd->completion); | |
1051 | spin_lock_irq(ioa_cfg->host->host_lock); | |
1052 | } | |
1053 | ||
05a6538a | 1054 | static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg) |
1055 | { | |
3f1c0581 BK |
1056 | unsigned int hrrq; |
1057 | ||
05a6538a | 1058 | if (ioa_cfg->hrrq_num == 1) |
3f1c0581 BK |
1059 | hrrq = 0; |
1060 | else { | |
1061 | hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index); | |
1062 | hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1; | |
1063 | } | |
1064 | return hrrq; | |
05a6538a | 1065 | } |
1066 | ||
1da177e4 LT |
1067 | /** |
1068 | * ipr_send_hcam - Send an HCAM to the adapter. | |
1069 | * @ioa_cfg: ioa config struct | |
1070 | * @type: HCAM type | |
1071 | * @hostrcb: hostrcb struct | |
1072 | * | |
1073 | * This function will send a Host Controlled Async command to the adapter. | |
1074 | * If HCAMs are currently not allowed to be issued to the adapter, it will | |
1075 | * place the hostrcb on the free queue. | |
1076 | * | |
1077 | * Return value: | |
1078 | * none | |
1079 | **/ | |
1080 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, | |
1081 | struct ipr_hostrcb *hostrcb) | |
1082 | { | |
1083 | struct ipr_cmnd *ipr_cmd; | |
1084 | struct ipr_ioarcb *ioarcb; | |
1085 | ||
56d6aa33 | 1086 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { |
1da177e4 | 1087 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
05a6538a | 1088 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
1da177e4 LT |
1089 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); |
1090 | ||
1091 | ipr_cmd->u.hostrcb = hostrcb; | |
1092 | ioarcb = &ipr_cmd->ioarcb; | |
1093 | ||
1094 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
1095 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; | |
1096 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; | |
1097 | ioarcb->cmd_pkt.cdb[1] = type; | |
1098 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; | |
1099 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; | |
1100 | ||
a32c055f WB |
1101 | ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, |
1102 | sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); | |
1da177e4 LT |
1103 | |
1104 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) | |
1105 | ipr_cmd->done = ipr_process_ccn; | |
1106 | else | |
1107 | ipr_cmd->done = ipr_process_error; | |
1108 | ||
1109 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); | |
1110 | ||
a32c055f | 1111 | ipr_send_command(ipr_cmd); |
1da177e4 LT |
1112 | } else { |
1113 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
1114 | } | |
1115 | } | |
1116 | ||
3e7ebdfa WB |
1117 | /** |
1118 | * ipr_update_ata_class - Update the ata class in the resource entry | |
1119 | * @res: resource entry struct | |
1120 | * @proto: cfgte device bus protocol value | |
1121 | * | |
1122 | * Return value: | |
1123 | * none | |
1124 | **/ | |
1125 | static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) | |
1126 | { | |
203fa3fe | 1127 | switch (proto) { |
3e7ebdfa WB |
1128 | case IPR_PROTO_SATA: |
1129 | case IPR_PROTO_SAS_STP: | |
1130 | res->ata_class = ATA_DEV_ATA; | |
1131 | break; | |
1132 | case IPR_PROTO_SATA_ATAPI: | |
1133 | case IPR_PROTO_SAS_STP_ATAPI: | |
1134 | res->ata_class = ATA_DEV_ATAPI; | |
1135 | break; | |
1136 | default: | |
1137 | res->ata_class = ATA_DEV_UNKNOWN; | |
1138 | break; | |
1139 | }; | |
1140 | } | |
1141 | ||
1da177e4 LT |
1142 | /** |
1143 | * ipr_init_res_entry - Initialize a resource entry struct. | |
1144 | * @res: resource entry struct | |
3e7ebdfa | 1145 | * @cfgtew: config table entry wrapper struct |
1da177e4 LT |
1146 | * |
1147 | * Return value: | |
1148 | * none | |
1149 | **/ | |
3e7ebdfa WB |
1150 | static void ipr_init_res_entry(struct ipr_resource_entry *res, |
1151 | struct ipr_config_table_entry_wrapper *cfgtew) | |
1da177e4 | 1152 | { |
3e7ebdfa WB |
1153 | int found = 0; |
1154 | unsigned int proto; | |
1155 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; | |
1156 | struct ipr_resource_entry *gscsi_res = NULL; | |
1157 | ||
ee0a90fa | 1158 | res->needs_sync_complete = 0; |
1da177e4 LT |
1159 | res->in_erp = 0; |
1160 | res->add_to_ml = 0; | |
1161 | res->del_from_ml = 0; | |
1162 | res->resetting_device = 0; | |
0b1f8d44 | 1163 | res->reset_occurred = 0; |
1da177e4 | 1164 | res->sdev = NULL; |
35a39691 | 1165 | res->sata_port = NULL; |
3e7ebdfa WB |
1166 | |
1167 | if (ioa_cfg->sis64) { | |
1168 | proto = cfgtew->u.cfgte64->proto; | |
359d96e7 BK |
1169 | res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); |
1170 | res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); | |
3e7ebdfa | 1171 | res->qmodel = IPR_QUEUEING_MODEL64(res); |
438b0331 | 1172 | res->type = cfgtew->u.cfgte64->res_type; |
3e7ebdfa WB |
1173 | |
1174 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, | |
1175 | sizeof(res->res_path)); | |
1176 | ||
1177 | res->bus = 0; | |
0cb992ed WB |
1178 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, |
1179 | sizeof(res->dev_lun.scsi_lun)); | |
3e7ebdfa WB |
1180 | res->lun = scsilun_to_int(&res->dev_lun); |
1181 | ||
1182 | if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { | |
1183 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { | |
1184 | if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { | |
1185 | found = 1; | |
1186 | res->target = gscsi_res->target; | |
1187 | break; | |
1188 | } | |
1189 | } | |
1190 | if (!found) { | |
1191 | res->target = find_first_zero_bit(ioa_cfg->target_ids, | |
1192 | ioa_cfg->max_devs_supported); | |
1193 | set_bit(res->target, ioa_cfg->target_ids); | |
1194 | } | |
3e7ebdfa WB |
1195 | } else if (res->type == IPR_RES_TYPE_IOAFP) { |
1196 | res->bus = IPR_IOAFP_VIRTUAL_BUS; | |
1197 | res->target = 0; | |
1198 | } else if (res->type == IPR_RES_TYPE_ARRAY) { | |
1199 | res->bus = IPR_ARRAY_VIRTUAL_BUS; | |
1200 | res->target = find_first_zero_bit(ioa_cfg->array_ids, | |
1201 | ioa_cfg->max_devs_supported); | |
1202 | set_bit(res->target, ioa_cfg->array_ids); | |
1203 | } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { | |
1204 | res->bus = IPR_VSET_VIRTUAL_BUS; | |
1205 | res->target = find_first_zero_bit(ioa_cfg->vset_ids, | |
1206 | ioa_cfg->max_devs_supported); | |
1207 | set_bit(res->target, ioa_cfg->vset_ids); | |
1208 | } else { | |
1209 | res->target = find_first_zero_bit(ioa_cfg->target_ids, | |
1210 | ioa_cfg->max_devs_supported); | |
1211 | set_bit(res->target, ioa_cfg->target_ids); | |
1212 | } | |
1213 | } else { | |
1214 | proto = cfgtew->u.cfgte->proto; | |
1215 | res->qmodel = IPR_QUEUEING_MODEL(res); | |
1216 | res->flags = cfgtew->u.cfgte->flags; | |
1217 | if (res->flags & IPR_IS_IOA_RESOURCE) | |
1218 | res->type = IPR_RES_TYPE_IOAFP; | |
1219 | else | |
1220 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; | |
1221 | ||
1222 | res->bus = cfgtew->u.cfgte->res_addr.bus; | |
1223 | res->target = cfgtew->u.cfgte->res_addr.target; | |
1224 | res->lun = cfgtew->u.cfgte->res_addr.lun; | |
46d74563 | 1225 | res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn); |
3e7ebdfa WB |
1226 | } |
1227 | ||
1228 | ipr_update_ata_class(res, proto); | |
1229 | } | |
1230 | ||
1231 | /** | |
1232 | * ipr_is_same_device - Determine if two devices are the same. | |
1233 | * @res: resource entry struct | |
1234 | * @cfgtew: config table entry wrapper struct | |
1235 | * | |
1236 | * Return value: | |
1237 | * 1 if the devices are the same / 0 otherwise | |
1238 | **/ | |
1239 | static int ipr_is_same_device(struct ipr_resource_entry *res, | |
1240 | struct ipr_config_table_entry_wrapper *cfgtew) | |
1241 | { | |
1242 | if (res->ioa_cfg->sis64) { | |
1243 | if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, | |
1244 | sizeof(cfgtew->u.cfgte64->dev_id)) && | |
0cb992ed | 1245 | !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, |
3e7ebdfa WB |
1246 | sizeof(cfgtew->u.cfgte64->lun))) { |
1247 | return 1; | |
1248 | } | |
1249 | } else { | |
1250 | if (res->bus == cfgtew->u.cfgte->res_addr.bus && | |
1251 | res->target == cfgtew->u.cfgte->res_addr.target && | |
1252 | res->lun == cfgtew->u.cfgte->res_addr.lun) | |
1253 | return 1; | |
1254 | } | |
1255 | ||
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | /** | |
b3b3b407 | 1260 | * __ipr_format_res_path - Format the resource path for printing. |
3e7ebdfa WB |
1261 | * @res_path: resource path |
1262 | * @buf: buffer | |
b3b3b407 | 1263 | * @len: length of buffer provided |
3e7ebdfa WB |
1264 | * |
1265 | * Return value: | |
1266 | * pointer to buffer | |
1267 | **/ | |
b3b3b407 | 1268 | static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len) |
3e7ebdfa WB |
1269 | { |
1270 | int i; | |
5adcbeb3 | 1271 | char *p = buffer; |
3e7ebdfa | 1272 | |
46d74563 | 1273 | *p = '\0'; |
5adcbeb3 WB |
1274 | p += snprintf(p, buffer + len - p, "%02X", res_path[0]); |
1275 | for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++) | |
1276 | p += snprintf(p, buffer + len - p, "-%02X", res_path[i]); | |
3e7ebdfa WB |
1277 | |
1278 | return buffer; | |
1279 | } | |
1280 | ||
b3b3b407 BK |
1281 | /** |
1282 | * ipr_format_res_path - Format the resource path for printing. | |
1283 | * @ioa_cfg: ioa config struct | |
1284 | * @res_path: resource path | |
1285 | * @buf: buffer | |
1286 | * @len: length of buffer provided | |
1287 | * | |
1288 | * Return value: | |
1289 | * pointer to buffer | |
1290 | **/ | |
1291 | static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg, | |
1292 | u8 *res_path, char *buffer, int len) | |
1293 | { | |
1294 | char *p = buffer; | |
1295 | ||
1296 | *p = '\0'; | |
1297 | p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no); | |
1298 | __ipr_format_res_path(res_path, p, len - (buffer - p)); | |
1299 | return buffer; | |
1300 | } | |
1301 | ||
3e7ebdfa WB |
1302 | /** |
1303 | * ipr_update_res_entry - Update the resource entry. | |
1304 | * @res: resource entry struct | |
1305 | * @cfgtew: config table entry wrapper struct | |
1306 | * | |
1307 | * Return value: | |
1308 | * none | |
1309 | **/ | |
1310 | static void ipr_update_res_entry(struct ipr_resource_entry *res, | |
1311 | struct ipr_config_table_entry_wrapper *cfgtew) | |
1312 | { | |
1313 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
1314 | unsigned int proto; | |
1315 | int new_path = 0; | |
1316 | ||
1317 | if (res->ioa_cfg->sis64) { | |
359d96e7 BK |
1318 | res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); |
1319 | res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); | |
75576bb9 | 1320 | res->type = cfgtew->u.cfgte64->res_type; |
3e7ebdfa WB |
1321 | |
1322 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, | |
1323 | sizeof(struct ipr_std_inq_data)); | |
1324 | ||
1325 | res->qmodel = IPR_QUEUEING_MODEL64(res); | |
1326 | proto = cfgtew->u.cfgte64->proto; | |
1327 | res->res_handle = cfgtew->u.cfgte64->res_handle; | |
1328 | res->dev_id = cfgtew->u.cfgte64->dev_id; | |
1329 | ||
1330 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, | |
1331 | sizeof(res->dev_lun.scsi_lun)); | |
1332 | ||
1333 | if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, | |
1334 | sizeof(res->res_path))) { | |
1335 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, | |
1336 | sizeof(res->res_path)); | |
1337 | new_path = 1; | |
1338 | } | |
1339 | ||
1340 | if (res->sdev && new_path) | |
1341 | sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", | |
b3b3b407 BK |
1342 | ipr_format_res_path(res->ioa_cfg, |
1343 | res->res_path, buffer, sizeof(buffer))); | |
3e7ebdfa WB |
1344 | } else { |
1345 | res->flags = cfgtew->u.cfgte->flags; | |
1346 | if (res->flags & IPR_IS_IOA_RESOURCE) | |
1347 | res->type = IPR_RES_TYPE_IOAFP; | |
1348 | else | |
1349 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; | |
1350 | ||
1351 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, | |
1352 | sizeof(struct ipr_std_inq_data)); | |
1353 | ||
1354 | res->qmodel = IPR_QUEUEING_MODEL(res); | |
1355 | proto = cfgtew->u.cfgte->proto; | |
1356 | res->res_handle = cfgtew->u.cfgte->res_handle; | |
1357 | } | |
1358 | ||
1359 | ipr_update_ata_class(res, proto); | |
1360 | } | |
1361 | ||
1362 | /** | |
1363 | * ipr_clear_res_target - Clear the bit in the bit map representing the target | |
1364 | * for the resource. | |
1365 | * @res: resource entry struct | |
1366 | * @cfgtew: config table entry wrapper struct | |
1367 | * | |
1368 | * Return value: | |
1369 | * none | |
1370 | **/ | |
1371 | static void ipr_clear_res_target(struct ipr_resource_entry *res) | |
1372 | { | |
1373 | struct ipr_resource_entry *gscsi_res = NULL; | |
1374 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; | |
1375 | ||
1376 | if (!ioa_cfg->sis64) | |
1377 | return; | |
1378 | ||
1379 | if (res->bus == IPR_ARRAY_VIRTUAL_BUS) | |
1380 | clear_bit(res->target, ioa_cfg->array_ids); | |
1381 | else if (res->bus == IPR_VSET_VIRTUAL_BUS) | |
1382 | clear_bit(res->target, ioa_cfg->vset_ids); | |
1383 | else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { | |
1384 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) | |
1385 | if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) | |
1386 | return; | |
1387 | clear_bit(res->target, ioa_cfg->target_ids); | |
1388 | ||
1389 | } else if (res->bus == 0) | |
1390 | clear_bit(res->target, ioa_cfg->target_ids); | |
1da177e4 LT |
1391 | } |
1392 | ||
1393 | /** | |
1394 | * ipr_handle_config_change - Handle a config change from the adapter | |
1395 | * @ioa_cfg: ioa config struct | |
1396 | * @hostrcb: hostrcb | |
1397 | * | |
1398 | * Return value: | |
1399 | * none | |
1400 | **/ | |
1401 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, | |
3e7ebdfa | 1402 | struct ipr_hostrcb *hostrcb) |
1da177e4 LT |
1403 | { |
1404 | struct ipr_resource_entry *res = NULL; | |
3e7ebdfa WB |
1405 | struct ipr_config_table_entry_wrapper cfgtew; |
1406 | __be32 cc_res_handle; | |
1407 | ||
1da177e4 LT |
1408 | u32 is_ndn = 1; |
1409 | ||
3e7ebdfa WB |
1410 | if (ioa_cfg->sis64) { |
1411 | cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; | |
1412 | cc_res_handle = cfgtew.u.cfgte64->res_handle; | |
1413 | } else { | |
1414 | cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; | |
1415 | cc_res_handle = cfgtew.u.cfgte->res_handle; | |
1416 | } | |
1da177e4 LT |
1417 | |
1418 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3e7ebdfa | 1419 | if (res->res_handle == cc_res_handle) { |
1da177e4 LT |
1420 | is_ndn = 0; |
1421 | break; | |
1422 | } | |
1423 | } | |
1424 | ||
1425 | if (is_ndn) { | |
1426 | if (list_empty(&ioa_cfg->free_res_q)) { | |
1427 | ipr_send_hcam(ioa_cfg, | |
1428 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, | |
1429 | hostrcb); | |
1430 | return; | |
1431 | } | |
1432 | ||
1433 | res = list_entry(ioa_cfg->free_res_q.next, | |
1434 | struct ipr_resource_entry, queue); | |
1435 | ||
1436 | list_del(&res->queue); | |
3e7ebdfa | 1437 | ipr_init_res_entry(res, &cfgtew); |
1da177e4 LT |
1438 | list_add_tail(&res->queue, &ioa_cfg->used_res_q); |
1439 | } | |
1440 | ||
3e7ebdfa | 1441 | ipr_update_res_entry(res, &cfgtew); |
1da177e4 LT |
1442 | |
1443 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { | |
1444 | if (res->sdev) { | |
1da177e4 | 1445 | res->del_from_ml = 1; |
3e7ebdfa | 1446 | res->res_handle = IPR_INVALID_RES_HANDLE; |
f688f96d | 1447 | schedule_work(&ioa_cfg->work_q); |
3e7ebdfa WB |
1448 | } else { |
1449 | ipr_clear_res_target(res); | |
1da177e4 | 1450 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
3e7ebdfa | 1451 | } |
5767a1c4 | 1452 | } else if (!res->sdev || res->del_from_ml) { |
1da177e4 | 1453 | res->add_to_ml = 1; |
f688f96d | 1454 | schedule_work(&ioa_cfg->work_q); |
1da177e4 LT |
1455 | } |
1456 | ||
1457 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
1458 | } | |
1459 | ||
1460 | /** | |
1461 | * ipr_process_ccn - Op done function for a CCN. | |
1462 | * @ipr_cmd: ipr command struct | |
1463 | * | |
1464 | * This function is the op done function for a configuration | |
1465 | * change notification host controlled async from the adapter. | |
1466 | * | |
1467 | * Return value: | |
1468 | * none | |
1469 | **/ | |
1470 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) | |
1471 | { | |
1472 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1473 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
96d21f00 | 1474 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
1475 | |
1476 | list_del(&hostrcb->queue); | |
05a6538a | 1477 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
1da177e4 LT |
1478 | |
1479 | if (ioasc) { | |
4fdd7c7a BK |
1480 | if (ioasc != IPR_IOASC_IOA_WAS_RESET && |
1481 | ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) | |
1da177e4 LT |
1482 | dev_err(&ioa_cfg->pdev->dev, |
1483 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
1484 | ||
1485 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
1486 | } else { | |
1487 | ipr_handle_config_change(ioa_cfg, hostrcb); | |
1488 | } | |
1489 | } | |
1490 | ||
8cf093e2 BK |
1491 | /** |
1492 | * strip_and_pad_whitespace - Strip and pad trailing whitespace. | |
1493 | * @i: index into buffer | |
1494 | * @buf: string to modify | |
1495 | * | |
1496 | * This function will strip all trailing whitespace, pad the end | |
1497 | * of the string with a single space, and NULL terminate the string. | |
1498 | * | |
1499 | * Return value: | |
1500 | * new length of string | |
1501 | **/ | |
1502 | static int strip_and_pad_whitespace(int i, char *buf) | |
1503 | { | |
1504 | while (i && buf[i] == ' ') | |
1505 | i--; | |
1506 | buf[i+1] = ' '; | |
1507 | buf[i+2] = '\0'; | |
1508 | return i + 2; | |
1509 | } | |
1510 | ||
1511 | /** | |
1512 | * ipr_log_vpd_compact - Log the passed extended VPD compactly. | |
1513 | * @prefix: string to print at start of printk | |
1514 | * @hostrcb: hostrcb pointer | |
1515 | * @vpd: vendor/product id/sn struct | |
1516 | * | |
1517 | * Return value: | |
1518 | * none | |
1519 | **/ | |
1520 | static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, | |
1521 | struct ipr_vpd *vpd) | |
1522 | { | |
1523 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; | |
1524 | int i = 0; | |
1525 | ||
1526 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); | |
1527 | i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); | |
1528 | ||
1529 | memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); | |
1530 | i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); | |
1531 | ||
1532 | memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); | |
1533 | buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; | |
1534 | ||
1535 | ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); | |
1536 | } | |
1537 | ||
1da177e4 LT |
1538 | /** |
1539 | * ipr_log_vpd - Log the passed VPD to the error log. | |
cfc32139 | 1540 | * @vpd: vendor/product id/sn struct |
1da177e4 LT |
1541 | * |
1542 | * Return value: | |
1543 | * none | |
1544 | **/ | |
cfc32139 | 1545 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
1da177e4 LT |
1546 | { |
1547 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN | |
1548 | + IPR_SERIAL_NUM_LEN]; | |
1549 | ||
cfc32139 BK |
1550 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
1551 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, | |
1da177e4 LT |
1552 | IPR_PROD_ID_LEN); |
1553 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; | |
1554 | ipr_err("Vendor/Product ID: %s\n", buffer); | |
1555 | ||
cfc32139 | 1556 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
1da177e4 LT |
1557 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
1558 | ipr_err(" Serial Number: %s\n", buffer); | |
1559 | } | |
1560 | ||
8cf093e2 BK |
1561 | /** |
1562 | * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. | |
1563 | * @prefix: string to print at start of printk | |
1564 | * @hostrcb: hostrcb pointer | |
1565 | * @vpd: vendor/product id/sn/wwn struct | |
1566 | * | |
1567 | * Return value: | |
1568 | * none | |
1569 | **/ | |
1570 | static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, | |
1571 | struct ipr_ext_vpd *vpd) | |
1572 | { | |
1573 | ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); | |
1574 | ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, | |
1575 | be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); | |
1576 | } | |
1577 | ||
ee0f05b8 BK |
1578 | /** |
1579 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. | |
1580 | * @vpd: vendor/product id/sn/wwn struct | |
1581 | * | |
1582 | * Return value: | |
1583 | * none | |
1584 | **/ | |
1585 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) | |
1586 | { | |
1587 | ipr_log_vpd(&vpd->vpd); | |
1588 | ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), | |
1589 | be32_to_cpu(vpd->wwid[1])); | |
1590 | } | |
1591 | ||
1592 | /** | |
1593 | * ipr_log_enhanced_cache_error - Log a cache error. | |
1594 | * @ioa_cfg: ioa config struct | |
1595 | * @hostrcb: hostrcb struct | |
1596 | * | |
1597 | * Return value: | |
1598 | * none | |
1599 | **/ | |
1600 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
1601 | struct ipr_hostrcb *hostrcb) | |
1602 | { | |
4565e370 WB |
1603 | struct ipr_hostrcb_type_12_error *error; |
1604 | ||
1605 | if (ioa_cfg->sis64) | |
1606 | error = &hostrcb->hcam.u.error64.u.type_12_error; | |
1607 | else | |
1608 | error = &hostrcb->hcam.u.error.u.type_12_error; | |
ee0f05b8 BK |
1609 | |
1610 | ipr_err("-----Current Configuration-----\n"); | |
1611 | ipr_err("Cache Directory Card Information:\n"); | |
1612 | ipr_log_ext_vpd(&error->ioa_vpd); | |
1613 | ipr_err("Adapter Card Information:\n"); | |
1614 | ipr_log_ext_vpd(&error->cfc_vpd); | |
1615 | ||
1616 | ipr_err("-----Expected Configuration-----\n"); | |
1617 | ipr_err("Cache Directory Card Information:\n"); | |
1618 | ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); | |
1619 | ipr_err("Adapter Card Information:\n"); | |
1620 | ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); | |
1621 | ||
1622 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1623 | be32_to_cpu(error->ioa_data[0]), | |
1624 | be32_to_cpu(error->ioa_data[1]), | |
1625 | be32_to_cpu(error->ioa_data[2])); | |
1626 | } | |
1627 | ||
1da177e4 LT |
1628 | /** |
1629 | * ipr_log_cache_error - Log a cache error. | |
1630 | * @ioa_cfg: ioa config struct | |
1631 | * @hostrcb: hostrcb struct | |
1632 | * | |
1633 | * Return value: | |
1634 | * none | |
1635 | **/ | |
1636 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
1637 | struct ipr_hostrcb *hostrcb) | |
1638 | { | |
1639 | struct ipr_hostrcb_type_02_error *error = | |
1640 | &hostrcb->hcam.u.error.u.type_02_error; | |
1641 | ||
1642 | ipr_err("-----Current Configuration-----\n"); | |
1643 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1644 | ipr_log_vpd(&error->ioa_vpd); |
1da177e4 | 1645 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1646 | ipr_log_vpd(&error->cfc_vpd); |
1da177e4 LT |
1647 | |
1648 | ipr_err("-----Expected Configuration-----\n"); | |
1649 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1650 | ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); |
1da177e4 | 1651 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1652 | ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); |
1da177e4 LT |
1653 | |
1654 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1655 | be32_to_cpu(error->ioa_data[0]), | |
1656 | be32_to_cpu(error->ioa_data[1]), | |
1657 | be32_to_cpu(error->ioa_data[2])); | |
1658 | } | |
1659 | ||
ee0f05b8 BK |
1660 | /** |
1661 | * ipr_log_enhanced_config_error - Log a configuration error. | |
1662 | * @ioa_cfg: ioa config struct | |
1663 | * @hostrcb: hostrcb struct | |
1664 | * | |
1665 | * Return value: | |
1666 | * none | |
1667 | **/ | |
1668 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1669 | struct ipr_hostrcb *hostrcb) | |
1670 | { | |
1671 | int errors_logged, i; | |
1672 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; | |
1673 | struct ipr_hostrcb_type_13_error *error; | |
1674 | ||
1675 | error = &hostrcb->hcam.u.error.u.type_13_error; | |
1676 | errors_logged = be32_to_cpu(error->errors_logged); | |
1677 | ||
1678 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1679 | be32_to_cpu(error->errors_detected), errors_logged); | |
1680 | ||
1681 | dev_entry = error->dev; | |
1682 | ||
1683 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1684 | ipr_err_separator; | |
1685 | ||
1686 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); | |
1687 | ipr_log_ext_vpd(&dev_entry->vpd); | |
1688 | ||
1689 | ipr_err("-----New Device Information-----\n"); | |
1690 | ipr_log_ext_vpd(&dev_entry->new_vpd); | |
1691 | ||
1692 | ipr_err("Cache Directory Card Information:\n"); | |
1693 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); | |
1694 | ||
1695 | ipr_err("Adapter Card Information:\n"); | |
1696 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); | |
1697 | } | |
1698 | } | |
1699 | ||
4565e370 WB |
1700 | /** |
1701 | * ipr_log_sis64_config_error - Log a device error. | |
1702 | * @ioa_cfg: ioa config struct | |
1703 | * @hostrcb: hostrcb struct | |
1704 | * | |
1705 | * Return value: | |
1706 | * none | |
1707 | **/ | |
1708 | static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1709 | struct ipr_hostrcb *hostrcb) | |
1710 | { | |
1711 | int errors_logged, i; | |
1712 | struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; | |
1713 | struct ipr_hostrcb_type_23_error *error; | |
1714 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
1715 | ||
1716 | error = &hostrcb->hcam.u.error64.u.type_23_error; | |
1717 | errors_logged = be32_to_cpu(error->errors_logged); | |
1718 | ||
1719 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1720 | be32_to_cpu(error->errors_detected), errors_logged); | |
1721 | ||
1722 | dev_entry = error->dev; | |
1723 | ||
1724 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1725 | ipr_err_separator; | |
1726 | ||
1727 | ipr_err("Device %d : %s", i + 1, | |
b3b3b407 BK |
1728 | __ipr_format_res_path(dev_entry->res_path, |
1729 | buffer, sizeof(buffer))); | |
4565e370 WB |
1730 | ipr_log_ext_vpd(&dev_entry->vpd); |
1731 | ||
1732 | ipr_err("-----New Device Information-----\n"); | |
1733 | ipr_log_ext_vpd(&dev_entry->new_vpd); | |
1734 | ||
1735 | ipr_err("Cache Directory Card Information:\n"); | |
1736 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); | |
1737 | ||
1738 | ipr_err("Adapter Card Information:\n"); | |
1739 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); | |
1740 | } | |
1741 | } | |
1742 | ||
1da177e4 LT |
1743 | /** |
1744 | * ipr_log_config_error - Log a configuration error. | |
1745 | * @ioa_cfg: ioa config struct | |
1746 | * @hostrcb: hostrcb struct | |
1747 | * | |
1748 | * Return value: | |
1749 | * none | |
1750 | **/ | |
1751 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1752 | struct ipr_hostrcb *hostrcb) | |
1753 | { | |
1754 | int errors_logged, i; | |
1755 | struct ipr_hostrcb_device_data_entry *dev_entry; | |
1756 | struct ipr_hostrcb_type_03_error *error; | |
1757 | ||
1758 | error = &hostrcb->hcam.u.error.u.type_03_error; | |
1759 | errors_logged = be32_to_cpu(error->errors_logged); | |
1760 | ||
1761 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1762 | be32_to_cpu(error->errors_detected), errors_logged); | |
1763 | ||
cfc32139 | 1764 | dev_entry = error->dev; |
1da177e4 LT |
1765 | |
1766 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1767 | ipr_err_separator; | |
1768 | ||
fa15b1f6 | 1769 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
cfc32139 | 1770 | ipr_log_vpd(&dev_entry->vpd); |
1da177e4 LT |
1771 | |
1772 | ipr_err("-----New Device Information-----\n"); | |
cfc32139 | 1773 | ipr_log_vpd(&dev_entry->new_vpd); |
1da177e4 LT |
1774 | |
1775 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1776 | ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); |
1da177e4 LT |
1777 | |
1778 | ipr_err("Adapter Card Information:\n"); | |
cfc32139 | 1779 | ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); |
1da177e4 LT |
1780 | |
1781 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", | |
1782 | be32_to_cpu(dev_entry->ioa_data[0]), | |
1783 | be32_to_cpu(dev_entry->ioa_data[1]), | |
1784 | be32_to_cpu(dev_entry->ioa_data[2]), | |
1785 | be32_to_cpu(dev_entry->ioa_data[3]), | |
1786 | be32_to_cpu(dev_entry->ioa_data[4])); | |
1787 | } | |
1788 | } | |
1789 | ||
ee0f05b8 BK |
1790 | /** |
1791 | * ipr_log_enhanced_array_error - Log an array configuration error. | |
1792 | * @ioa_cfg: ioa config struct | |
1793 | * @hostrcb: hostrcb struct | |
1794 | * | |
1795 | * Return value: | |
1796 | * none | |
1797 | **/ | |
1798 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1799 | struct ipr_hostrcb *hostrcb) | |
1800 | { | |
1801 | int i, num_entries; | |
1802 | struct ipr_hostrcb_type_14_error *error; | |
1803 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; | |
1804 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1805 | ||
1806 | error = &hostrcb->hcam.u.error.u.type_14_error; | |
1807 | ||
1808 | ipr_err_separator; | |
1809 | ||
1810 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1811 | error->protection_level, | |
1812 | ioa_cfg->host->host_no, | |
1813 | error->last_func_vset_res_addr.bus, | |
1814 | error->last_func_vset_res_addr.target, | |
1815 | error->last_func_vset_res_addr.lun); | |
1816 | ||
1817 | ipr_err_separator; | |
1818 | ||
1819 | array_entry = error->array_member; | |
1820 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), | |
7262026f | 1821 | ARRAY_SIZE(error->array_member)); |
ee0f05b8 BK |
1822 | |
1823 | for (i = 0; i < num_entries; i++, array_entry++) { | |
1824 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) | |
1825 | continue; | |
1826 | ||
1827 | if (be32_to_cpu(error->exposed_mode_adn) == i) | |
1828 | ipr_err("Exposed Array Member %d:\n", i); | |
1829 | else | |
1830 | ipr_err("Array Member %d:\n", i); | |
1831 | ||
1832 | ipr_log_ext_vpd(&array_entry->vpd); | |
1833 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); | |
1834 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1835 | "Expected Location"); | |
1836 | ||
1837 | ipr_err_separator; | |
1838 | } | |
1839 | } | |
1840 | ||
1da177e4 LT |
1841 | /** |
1842 | * ipr_log_array_error - Log an array configuration error. | |
1843 | * @ioa_cfg: ioa config struct | |
1844 | * @hostrcb: hostrcb struct | |
1845 | * | |
1846 | * Return value: | |
1847 | * none | |
1848 | **/ | |
1849 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1850 | struct ipr_hostrcb *hostrcb) | |
1851 | { | |
1852 | int i; | |
1853 | struct ipr_hostrcb_type_04_error *error; | |
1854 | struct ipr_hostrcb_array_data_entry *array_entry; | |
1855 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1856 | ||
1857 | error = &hostrcb->hcam.u.error.u.type_04_error; | |
1858 | ||
1859 | ipr_err_separator; | |
1860 | ||
1861 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1862 | error->protection_level, | |
1863 | ioa_cfg->host->host_no, | |
1864 | error->last_func_vset_res_addr.bus, | |
1865 | error->last_func_vset_res_addr.target, | |
1866 | error->last_func_vset_res_addr.lun); | |
1867 | ||
1868 | ipr_err_separator; | |
1869 | ||
1870 | array_entry = error->array_member; | |
1871 | ||
1872 | for (i = 0; i < 18; i++) { | |
cfc32139 | 1873 | if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
1da177e4 LT |
1874 | continue; |
1875 | ||
fa15b1f6 | 1876 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1da177e4 | 1877 | ipr_err("Exposed Array Member %d:\n", i); |
fa15b1f6 | 1878 | else |
1da177e4 | 1879 | ipr_err("Array Member %d:\n", i); |
1da177e4 | 1880 | |
cfc32139 | 1881 | ipr_log_vpd(&array_entry->vpd); |
1da177e4 | 1882 | |
fa15b1f6 BK |
1883 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
1884 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1885 | "Expected Location"); | |
1da177e4 LT |
1886 | |
1887 | ipr_err_separator; | |
1888 | ||
1889 | if (i == 9) | |
1890 | array_entry = error->array_member2; | |
1891 | else | |
1892 | array_entry++; | |
1893 | } | |
1894 | } | |
1895 | ||
1896 | /** | |
b0df54bb | 1897 | * ipr_log_hex_data - Log additional hex IOA error data. |
ac719aba | 1898 | * @ioa_cfg: ioa config struct |
b0df54bb BK |
1899 | * @data: IOA error data |
1900 | * @len: data length | |
1da177e4 LT |
1901 | * |
1902 | * Return value: | |
1903 | * none | |
1904 | **/ | |
359d96e7 | 1905 | static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len) |
1da177e4 LT |
1906 | { |
1907 | int i; | |
1da177e4 | 1908 | |
b0df54bb | 1909 | if (len == 0) |
1da177e4 LT |
1910 | return; |
1911 | ||
ac719aba BK |
1912 | if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) |
1913 | len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); | |
1914 | ||
b0df54bb | 1915 | for (i = 0; i < len / 4; i += 4) { |
1da177e4 | 1916 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
b0df54bb BK |
1917 | be32_to_cpu(data[i]), |
1918 | be32_to_cpu(data[i+1]), | |
1919 | be32_to_cpu(data[i+2]), | |
1920 | be32_to_cpu(data[i+3])); | |
1da177e4 LT |
1921 | } |
1922 | } | |
1923 | ||
ee0f05b8 BK |
1924 | /** |
1925 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. | |
1926 | * @ioa_cfg: ioa config struct | |
1927 | * @hostrcb: hostrcb struct | |
1928 | * | |
1929 | * Return value: | |
1930 | * none | |
1931 | **/ | |
1932 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1933 | struct ipr_hostrcb *hostrcb) | |
1934 | { | |
1935 | struct ipr_hostrcb_type_17_error *error; | |
1936 | ||
4565e370 WB |
1937 | if (ioa_cfg->sis64) |
1938 | error = &hostrcb->hcam.u.error64.u.type_17_error; | |
1939 | else | |
1940 | error = &hostrcb->hcam.u.error.u.type_17_error; | |
1941 | ||
ee0f05b8 | 1942 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
ca54cb8c | 1943 | strim(error->failure_reason); |
ee0f05b8 | 1944 | |
8cf093e2 BK |
1945 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, |
1946 | be32_to_cpu(hostrcb->hcam.u.error.prc)); | |
1947 | ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); | |
ac719aba | 1948 | ipr_log_hex_data(ioa_cfg, error->data, |
ee0f05b8 BK |
1949 | be32_to_cpu(hostrcb->hcam.length) - |
1950 | (offsetof(struct ipr_hostrcb_error, u) + | |
1951 | offsetof(struct ipr_hostrcb_type_17_error, data))); | |
1952 | } | |
1953 | ||
b0df54bb BK |
1954 | /** |
1955 | * ipr_log_dual_ioa_error - Log a dual adapter error. | |
1956 | * @ioa_cfg: ioa config struct | |
1957 | * @hostrcb: hostrcb struct | |
1958 | * | |
1959 | * Return value: | |
1960 | * none | |
1961 | **/ | |
1962 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1963 | struct ipr_hostrcb *hostrcb) | |
1964 | { | |
1965 | struct ipr_hostrcb_type_07_error *error; | |
1966 | ||
1967 | error = &hostrcb->hcam.u.error.u.type_07_error; | |
1968 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
ca54cb8c | 1969 | strim(error->failure_reason); |
b0df54bb | 1970 | |
8cf093e2 BK |
1971 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, |
1972 | be32_to_cpu(hostrcb->hcam.u.error.prc)); | |
1973 | ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); | |
ac719aba | 1974 | ipr_log_hex_data(ioa_cfg, error->data, |
b0df54bb BK |
1975 | be32_to_cpu(hostrcb->hcam.length) - |
1976 | (offsetof(struct ipr_hostrcb_error, u) + | |
1977 | offsetof(struct ipr_hostrcb_type_07_error, data))); | |
1978 | } | |
1979 | ||
49dc6a18 BK |
1980 | static const struct { |
1981 | u8 active; | |
1982 | char *desc; | |
1983 | } path_active_desc[] = { | |
1984 | { IPR_PATH_NO_INFO, "Path" }, | |
1985 | { IPR_PATH_ACTIVE, "Active path" }, | |
1986 | { IPR_PATH_NOT_ACTIVE, "Inactive path" } | |
1987 | }; | |
1988 | ||
1989 | static const struct { | |
1990 | u8 state; | |
1991 | char *desc; | |
1992 | } path_state_desc[] = { | |
1993 | { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, | |
1994 | { IPR_PATH_HEALTHY, "is healthy" }, | |
1995 | { IPR_PATH_DEGRADED, "is degraded" }, | |
1996 | { IPR_PATH_FAILED, "is failed" } | |
1997 | }; | |
1998 | ||
1999 | /** | |
2000 | * ipr_log_fabric_path - Log a fabric path error | |
2001 | * @hostrcb: hostrcb struct | |
2002 | * @fabric: fabric descriptor | |
2003 | * | |
2004 | * Return value: | |
2005 | * none | |
2006 | **/ | |
2007 | static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, | |
2008 | struct ipr_hostrcb_fabric_desc *fabric) | |
2009 | { | |
2010 | int i, j; | |
2011 | u8 path_state = fabric->path_state; | |
2012 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; | |
2013 | u8 state = path_state & IPR_PATH_STATE_MASK; | |
2014 | ||
2015 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { | |
2016 | if (path_active_desc[i].active != active) | |
2017 | continue; | |
2018 | ||
2019 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { | |
2020 | if (path_state_desc[j].state != state) | |
2021 | continue; | |
2022 | ||
2023 | if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { | |
2024 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", | |
2025 | path_active_desc[i].desc, path_state_desc[j].desc, | |
2026 | fabric->ioa_port); | |
2027 | } else if (fabric->cascaded_expander == 0xff) { | |
2028 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", | |
2029 | path_active_desc[i].desc, path_state_desc[j].desc, | |
2030 | fabric->ioa_port, fabric->phy); | |
2031 | } else if (fabric->phy == 0xff) { | |
2032 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", | |
2033 | path_active_desc[i].desc, path_state_desc[j].desc, | |
2034 | fabric->ioa_port, fabric->cascaded_expander); | |
2035 | } else { | |
2036 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", | |
2037 | path_active_desc[i].desc, path_state_desc[j].desc, | |
2038 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); | |
2039 | } | |
2040 | return; | |
2041 | } | |
2042 | } | |
2043 | ||
2044 | ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, | |
2045 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); | |
2046 | } | |
2047 | ||
4565e370 WB |
2048 | /** |
2049 | * ipr_log64_fabric_path - Log a fabric path error | |
2050 | * @hostrcb: hostrcb struct | |
2051 | * @fabric: fabric descriptor | |
2052 | * | |
2053 | * Return value: | |
2054 | * none | |
2055 | **/ | |
2056 | static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, | |
2057 | struct ipr_hostrcb64_fabric_desc *fabric) | |
2058 | { | |
2059 | int i, j; | |
2060 | u8 path_state = fabric->path_state; | |
2061 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; | |
2062 | u8 state = path_state & IPR_PATH_STATE_MASK; | |
2063 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
2064 | ||
2065 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { | |
2066 | if (path_active_desc[i].active != active) | |
2067 | continue; | |
2068 | ||
2069 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { | |
2070 | if (path_state_desc[j].state != state) | |
2071 | continue; | |
2072 | ||
2073 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", | |
2074 | path_active_desc[i].desc, path_state_desc[j].desc, | |
b3b3b407 BK |
2075 | ipr_format_res_path(hostrcb->ioa_cfg, |
2076 | fabric->res_path, | |
2077 | buffer, sizeof(buffer))); | |
4565e370 WB |
2078 | return; |
2079 | } | |
2080 | } | |
2081 | ||
2082 | ipr_err("Path state=%02X Resource Path=%s\n", path_state, | |
b3b3b407 BK |
2083 | ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path, |
2084 | buffer, sizeof(buffer))); | |
4565e370 WB |
2085 | } |
2086 | ||
49dc6a18 BK |
2087 | static const struct { |
2088 | u8 type; | |
2089 | char *desc; | |
2090 | } path_type_desc[] = { | |
2091 | { IPR_PATH_CFG_IOA_PORT, "IOA port" }, | |
2092 | { IPR_PATH_CFG_EXP_PORT, "Expander port" }, | |
2093 | { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, | |
2094 | { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } | |
2095 | }; | |
2096 | ||
2097 | static const struct { | |
2098 | u8 status; | |
2099 | char *desc; | |
2100 | } path_status_desc[] = { | |
2101 | { IPR_PATH_CFG_NO_PROB, "Functional" }, | |
2102 | { IPR_PATH_CFG_DEGRADED, "Degraded" }, | |
2103 | { IPR_PATH_CFG_FAILED, "Failed" }, | |
2104 | { IPR_PATH_CFG_SUSPECT, "Suspect" }, | |
2105 | { IPR_PATH_NOT_DETECTED, "Missing" }, | |
2106 | { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } | |
2107 | }; | |
2108 | ||
2109 | static const char *link_rate[] = { | |
2110 | "unknown", | |
2111 | "disabled", | |
2112 | "phy reset problem", | |
2113 | "spinup hold", | |
2114 | "port selector", | |
2115 | "unknown", | |
2116 | "unknown", | |
2117 | "unknown", | |
2118 | "1.5Gbps", | |
2119 | "3.0Gbps", | |
2120 | "unknown", | |
2121 | "unknown", | |
2122 | "unknown", | |
2123 | "unknown", | |
2124 | "unknown", | |
2125 | "unknown" | |
2126 | }; | |
2127 | ||
2128 | /** | |
2129 | * ipr_log_path_elem - Log a fabric path element. | |
2130 | * @hostrcb: hostrcb struct | |
2131 | * @cfg: fabric path element struct | |
2132 | * | |
2133 | * Return value: | |
2134 | * none | |
2135 | **/ | |
2136 | static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, | |
2137 | struct ipr_hostrcb_config_element *cfg) | |
2138 | { | |
2139 | int i, j; | |
2140 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; | |
2141 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; | |
2142 | ||
2143 | if (type == IPR_PATH_CFG_NOT_EXIST) | |
2144 | return; | |
2145 | ||
2146 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { | |
2147 | if (path_type_desc[i].type != type) | |
2148 | continue; | |
2149 | ||
2150 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { | |
2151 | if (path_status_desc[j].status != status) | |
2152 | continue; | |
2153 | ||
2154 | if (type == IPR_PATH_CFG_IOA_PORT) { | |
2155 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", | |
2156 | path_status_desc[j].desc, path_type_desc[i].desc, | |
2157 | cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2158 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2159 | } else { | |
2160 | if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { | |
2161 | ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", | |
2162 | path_status_desc[j].desc, path_type_desc[i].desc, | |
2163 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2164 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2165 | } else if (cfg->cascaded_expander == 0xff) { | |
2166 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " | |
2167 | "WWN=%08X%08X\n", path_status_desc[j].desc, | |
2168 | path_type_desc[i].desc, cfg->phy, | |
2169 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2170 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2171 | } else if (cfg->phy == 0xff) { | |
2172 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " | |
2173 | "WWN=%08X%08X\n", path_status_desc[j].desc, | |
2174 | path_type_desc[i].desc, cfg->cascaded_expander, | |
2175 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2176 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2177 | } else { | |
2178 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " | |
2179 | "WWN=%08X%08X\n", path_status_desc[j].desc, | |
2180 | path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, | |
2181 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2182 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2183 | } | |
2184 | } | |
2185 | return; | |
2186 | } | |
2187 | } | |
2188 | ||
2189 | ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " | |
2190 | "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, | |
2191 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2192 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2193 | } | |
2194 | ||
4565e370 WB |
2195 | /** |
2196 | * ipr_log64_path_elem - Log a fabric path element. | |
2197 | * @hostrcb: hostrcb struct | |
2198 | * @cfg: fabric path element struct | |
2199 | * | |
2200 | * Return value: | |
2201 | * none | |
2202 | **/ | |
2203 | static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, | |
2204 | struct ipr_hostrcb64_config_element *cfg) | |
2205 | { | |
2206 | int i, j; | |
2207 | u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; | |
2208 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; | |
2209 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; | |
2210 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
2211 | ||
2212 | if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) | |
2213 | return; | |
2214 | ||
2215 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { | |
2216 | if (path_type_desc[i].type != type) | |
2217 | continue; | |
2218 | ||
2219 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { | |
2220 | if (path_status_desc[j].status != status) | |
2221 | continue; | |
2222 | ||
2223 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", | |
2224 | path_status_desc[j].desc, path_type_desc[i].desc, | |
b3b3b407 BK |
2225 | ipr_format_res_path(hostrcb->ioa_cfg, |
2226 | cfg->res_path, buffer, sizeof(buffer)), | |
2227 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2228 | be32_to_cpu(cfg->wwid[0]), | |
2229 | be32_to_cpu(cfg->wwid[1])); | |
4565e370 WB |
2230 | return; |
2231 | } | |
2232 | } | |
2233 | ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " | |
2234 | "WWN=%08X%08X\n", cfg->type_status, | |
b3b3b407 BK |
2235 | ipr_format_res_path(hostrcb->ioa_cfg, |
2236 | cfg->res_path, buffer, sizeof(buffer)), | |
2237 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2238 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
4565e370 WB |
2239 | } |
2240 | ||
49dc6a18 BK |
2241 | /** |
2242 | * ipr_log_fabric_error - Log a fabric error. | |
2243 | * @ioa_cfg: ioa config struct | |
2244 | * @hostrcb: hostrcb struct | |
2245 | * | |
2246 | * Return value: | |
2247 | * none | |
2248 | **/ | |
2249 | static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, | |
2250 | struct ipr_hostrcb *hostrcb) | |
2251 | { | |
2252 | struct ipr_hostrcb_type_20_error *error; | |
2253 | struct ipr_hostrcb_fabric_desc *fabric; | |
2254 | struct ipr_hostrcb_config_element *cfg; | |
2255 | int i, add_len; | |
2256 | ||
2257 | error = &hostrcb->hcam.u.error.u.type_20_error; | |
2258 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
2259 | ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); | |
2260 | ||
2261 | add_len = be32_to_cpu(hostrcb->hcam.length) - | |
2262 | (offsetof(struct ipr_hostrcb_error, u) + | |
2263 | offsetof(struct ipr_hostrcb_type_20_error, desc)); | |
2264 | ||
2265 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { | |
2266 | ipr_log_fabric_path(hostrcb, fabric); | |
2267 | for_each_fabric_cfg(fabric, cfg) | |
2268 | ipr_log_path_elem(hostrcb, cfg); | |
2269 | ||
2270 | add_len -= be16_to_cpu(fabric->length); | |
2271 | fabric = (struct ipr_hostrcb_fabric_desc *) | |
2272 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); | |
2273 | } | |
2274 | ||
359d96e7 | 2275 | ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len); |
49dc6a18 BK |
2276 | } |
2277 | ||
4565e370 WB |
2278 | /** |
2279 | * ipr_log_sis64_array_error - Log a sis64 array error. | |
2280 | * @ioa_cfg: ioa config struct | |
2281 | * @hostrcb: hostrcb struct | |
2282 | * | |
2283 | * Return value: | |
2284 | * none | |
2285 | **/ | |
2286 | static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
2287 | struct ipr_hostrcb *hostrcb) | |
2288 | { | |
2289 | int i, num_entries; | |
2290 | struct ipr_hostrcb_type_24_error *error; | |
2291 | struct ipr_hostrcb64_array_data_entry *array_entry; | |
2292 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
2293 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
2294 | ||
2295 | error = &hostrcb->hcam.u.error64.u.type_24_error; | |
2296 | ||
2297 | ipr_err_separator; | |
2298 | ||
2299 | ipr_err("RAID %s Array Configuration: %s\n", | |
2300 | error->protection_level, | |
b3b3b407 BK |
2301 | ipr_format_res_path(ioa_cfg, error->last_res_path, |
2302 | buffer, sizeof(buffer))); | |
4565e370 WB |
2303 | |
2304 | ipr_err_separator; | |
2305 | ||
2306 | array_entry = error->array_member; | |
7262026f WB |
2307 | num_entries = min_t(u32, error->num_entries, |
2308 | ARRAY_SIZE(error->array_member)); | |
4565e370 WB |
2309 | |
2310 | for (i = 0; i < num_entries; i++, array_entry++) { | |
2311 | ||
2312 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) | |
2313 | continue; | |
2314 | ||
2315 | if (error->exposed_mode_adn == i) | |
2316 | ipr_err("Exposed Array Member %d:\n", i); | |
2317 | else | |
2318 | ipr_err("Array Member %d:\n", i); | |
2319 | ||
2320 | ipr_err("Array Member %d:\n", i); | |
2321 | ipr_log_ext_vpd(&array_entry->vpd); | |
7262026f | 2322 | ipr_err("Current Location: %s\n", |
b3b3b407 BK |
2323 | ipr_format_res_path(ioa_cfg, array_entry->res_path, |
2324 | buffer, sizeof(buffer))); | |
7262026f | 2325 | ipr_err("Expected Location: %s\n", |
b3b3b407 BK |
2326 | ipr_format_res_path(ioa_cfg, |
2327 | array_entry->expected_res_path, | |
2328 | buffer, sizeof(buffer))); | |
4565e370 WB |
2329 | |
2330 | ipr_err_separator; | |
2331 | } | |
2332 | } | |
2333 | ||
2334 | /** | |
2335 | * ipr_log_sis64_fabric_error - Log a sis64 fabric error. | |
2336 | * @ioa_cfg: ioa config struct | |
2337 | * @hostrcb: hostrcb struct | |
2338 | * | |
2339 | * Return value: | |
2340 | * none | |
2341 | **/ | |
2342 | static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, | |
2343 | struct ipr_hostrcb *hostrcb) | |
2344 | { | |
2345 | struct ipr_hostrcb_type_30_error *error; | |
2346 | struct ipr_hostrcb64_fabric_desc *fabric; | |
2347 | struct ipr_hostrcb64_config_element *cfg; | |
2348 | int i, add_len; | |
2349 | ||
2350 | error = &hostrcb->hcam.u.error64.u.type_30_error; | |
2351 | ||
2352 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
2353 | ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); | |
2354 | ||
2355 | add_len = be32_to_cpu(hostrcb->hcam.length) - | |
2356 | (offsetof(struct ipr_hostrcb64_error, u) + | |
2357 | offsetof(struct ipr_hostrcb_type_30_error, desc)); | |
2358 | ||
2359 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { | |
2360 | ipr_log64_fabric_path(hostrcb, fabric); | |
2361 | for_each_fabric_cfg(fabric, cfg) | |
2362 | ipr_log64_path_elem(hostrcb, cfg); | |
2363 | ||
2364 | add_len -= be16_to_cpu(fabric->length); | |
2365 | fabric = (struct ipr_hostrcb64_fabric_desc *) | |
2366 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); | |
2367 | } | |
2368 | ||
359d96e7 | 2369 | ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len); |
4565e370 WB |
2370 | } |
2371 | ||
b0df54bb BK |
2372 | /** |
2373 | * ipr_log_generic_error - Log an adapter error. | |
2374 | * @ioa_cfg: ioa config struct | |
2375 | * @hostrcb: hostrcb struct | |
2376 | * | |
2377 | * Return value: | |
2378 | * none | |
2379 | **/ | |
2380 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, | |
2381 | struct ipr_hostrcb *hostrcb) | |
2382 | { | |
ac719aba | 2383 | ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, |
b0df54bb BK |
2384 | be32_to_cpu(hostrcb->hcam.length)); |
2385 | } | |
2386 | ||
169b9ec8 WX |
2387 | /** |
2388 | * ipr_log_sis64_device_error - Log a cache error. | |
2389 | * @ioa_cfg: ioa config struct | |
2390 | * @hostrcb: hostrcb struct | |
2391 | * | |
2392 | * Return value: | |
2393 | * none | |
2394 | **/ | |
2395 | static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg, | |
2396 | struct ipr_hostrcb *hostrcb) | |
2397 | { | |
2398 | struct ipr_hostrcb_type_21_error *error; | |
2399 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
2400 | ||
2401 | error = &hostrcb->hcam.u.error64.u.type_21_error; | |
2402 | ||
2403 | ipr_err("-----Failing Device Information-----\n"); | |
2404 | ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n", | |
2405 | be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]), | |
2406 | be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3])); | |
2407 | ipr_err("Device Resource Path: %s\n", | |
2408 | __ipr_format_res_path(error->res_path, | |
2409 | buffer, sizeof(buffer))); | |
2410 | error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0'; | |
2411 | error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0'; | |
2412 | ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc); | |
2413 | ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc); | |
2414 | ipr_err("SCSI Sense Data:\n"); | |
2415 | ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data)); | |
2416 | ipr_err("SCSI Command Descriptor Block: \n"); | |
2417 | ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb)); | |
2418 | ||
2419 | ipr_err("Additional IOA Data:\n"); | |
2420 | ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error)); | |
2421 | } | |
2422 | ||
1da177e4 LT |
2423 | /** |
2424 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. | |
2425 | * @ioasc: IOASC | |
2426 | * | |
2427 | * This function will return the index of into the ipr_error_table | |
2428 | * for the specified IOASC. If the IOASC is not in the table, | |
2429 | * 0 will be returned, which points to the entry used for unknown errors. | |
2430 | * | |
2431 | * Return value: | |
2432 | * index into the ipr_error_table | |
2433 | **/ | |
2434 | static u32 ipr_get_error(u32 ioasc) | |
2435 | { | |
2436 | int i; | |
2437 | ||
2438 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) | |
35a39691 | 2439 | if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) |
1da177e4 LT |
2440 | return i; |
2441 | ||
2442 | return 0; | |
2443 | } | |
2444 | ||
2445 | /** | |
2446 | * ipr_handle_log_data - Log an adapter error. | |
2447 | * @ioa_cfg: ioa config struct | |
2448 | * @hostrcb: hostrcb struct | |
2449 | * | |
2450 | * This function logs an adapter error to the system. | |
2451 | * | |
2452 | * Return value: | |
2453 | * none | |
2454 | **/ | |
2455 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, | |
2456 | struct ipr_hostrcb *hostrcb) | |
2457 | { | |
2458 | u32 ioasc; | |
2459 | int error_index; | |
3185ea63 | 2460 | struct ipr_hostrcb_type_21_error *error; |
1da177e4 LT |
2461 | |
2462 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) | |
2463 | return; | |
2464 | ||
2465 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) | |
2466 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); | |
2467 | ||
4565e370 WB |
2468 | if (ioa_cfg->sis64) |
2469 | ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); | |
2470 | else | |
2471 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); | |
1da177e4 | 2472 | |
4565e370 WB |
2473 | if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || |
2474 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { | |
1da177e4 LT |
2475 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ |
2476 | scsi_report_bus_reset(ioa_cfg->host, | |
4565e370 | 2477 | hostrcb->hcam.u.error.fd_res_addr.bus); |
1da177e4 LT |
2478 | } |
2479 | ||
2480 | error_index = ipr_get_error(ioasc); | |
2481 | ||
2482 | if (!ipr_error_table[error_index].log_hcam) | |
2483 | return; | |
2484 | ||
3185ea63 | 2485 | if (ioasc == IPR_IOASC_HW_CMD_FAILED && |
2486 | hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) { | |
2487 | error = &hostrcb->hcam.u.error64.u.type_21_error; | |
2488 | ||
2489 | if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST && | |
2490 | ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) | |
2491 | return; | |
2492 | } | |
2493 | ||
49dc6a18 | 2494 | ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); |
1da177e4 LT |
2495 | |
2496 | /* Set indication we have logged an error */ | |
2497 | ioa_cfg->errors_logged++; | |
2498 | ||
933916f3 | 2499 | if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) |
1da177e4 | 2500 | return; |
cf852037 BK |
2501 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
2502 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); | |
1da177e4 LT |
2503 | |
2504 | switch (hostrcb->hcam.overlay_id) { | |
1da177e4 LT |
2505 | case IPR_HOST_RCB_OVERLAY_ID_2: |
2506 | ipr_log_cache_error(ioa_cfg, hostrcb); | |
2507 | break; | |
2508 | case IPR_HOST_RCB_OVERLAY_ID_3: | |
2509 | ipr_log_config_error(ioa_cfg, hostrcb); | |
2510 | break; | |
2511 | case IPR_HOST_RCB_OVERLAY_ID_4: | |
2512 | case IPR_HOST_RCB_OVERLAY_ID_6: | |
2513 | ipr_log_array_error(ioa_cfg, hostrcb); | |
2514 | break; | |
b0df54bb BK |
2515 | case IPR_HOST_RCB_OVERLAY_ID_7: |
2516 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); | |
2517 | break; | |
ee0f05b8 BK |
2518 | case IPR_HOST_RCB_OVERLAY_ID_12: |
2519 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); | |
2520 | break; | |
2521 | case IPR_HOST_RCB_OVERLAY_ID_13: | |
2522 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); | |
2523 | break; | |
2524 | case IPR_HOST_RCB_OVERLAY_ID_14: | |
2525 | case IPR_HOST_RCB_OVERLAY_ID_16: | |
2526 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); | |
2527 | break; | |
2528 | case IPR_HOST_RCB_OVERLAY_ID_17: | |
2529 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); | |
2530 | break; | |
49dc6a18 BK |
2531 | case IPR_HOST_RCB_OVERLAY_ID_20: |
2532 | ipr_log_fabric_error(ioa_cfg, hostrcb); | |
2533 | break; | |
169b9ec8 WX |
2534 | case IPR_HOST_RCB_OVERLAY_ID_21: |
2535 | ipr_log_sis64_device_error(ioa_cfg, hostrcb); | |
2536 | break; | |
4565e370 WB |
2537 | case IPR_HOST_RCB_OVERLAY_ID_23: |
2538 | ipr_log_sis64_config_error(ioa_cfg, hostrcb); | |
2539 | break; | |
2540 | case IPR_HOST_RCB_OVERLAY_ID_24: | |
2541 | case IPR_HOST_RCB_OVERLAY_ID_26: | |
2542 | ipr_log_sis64_array_error(ioa_cfg, hostrcb); | |
2543 | break; | |
2544 | case IPR_HOST_RCB_OVERLAY_ID_30: | |
2545 | ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); | |
2546 | break; | |
cf852037 | 2547 | case IPR_HOST_RCB_OVERLAY_ID_1: |
1da177e4 | 2548 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
1da177e4 | 2549 | default: |
a9cfca96 | 2550 | ipr_log_generic_error(ioa_cfg, hostrcb); |
1da177e4 LT |
2551 | break; |
2552 | } | |
2553 | } | |
2554 | ||
2555 | /** | |
2556 | * ipr_process_error - Op done function for an adapter error log. | |
2557 | * @ipr_cmd: ipr command struct | |
2558 | * | |
2559 | * This function is the op done function for an error log host | |
2560 | * controlled async from the adapter. It will log the error and | |
2561 | * send the HCAM back to the adapter. | |
2562 | * | |
2563 | * Return value: | |
2564 | * none | |
2565 | **/ | |
2566 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) | |
2567 | { | |
2568 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
2569 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
96d21f00 | 2570 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
4565e370 WB |
2571 | u32 fd_ioasc; |
2572 | ||
2573 | if (ioa_cfg->sis64) | |
2574 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); | |
2575 | else | |
2576 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); | |
1da177e4 LT |
2577 | |
2578 | list_del(&hostrcb->queue); | |
05a6538a | 2579 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
1da177e4 LT |
2580 | |
2581 | if (!ioasc) { | |
2582 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
65f56475 BK |
2583 | if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) |
2584 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); | |
4fdd7c7a BK |
2585 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET && |
2586 | ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) { | |
1da177e4 LT |
2587 | dev_err(&ioa_cfg->pdev->dev, |
2588 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
2589 | } | |
2590 | ||
2591 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
2592 | } | |
2593 | ||
2594 | /** | |
2595 | * ipr_timeout - An internally generated op has timed out. | |
2596 | * @ipr_cmd: ipr command struct | |
2597 | * | |
2598 | * This function blocks host requests and initiates an | |
2599 | * adapter reset. | |
2600 | * | |
2601 | * Return value: | |
2602 | * none | |
2603 | **/ | |
2604 | static void ipr_timeout(struct ipr_cmnd *ipr_cmd) | |
2605 | { | |
2606 | unsigned long lock_flags = 0; | |
2607 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
2608 | ||
2609 | ENTER; | |
2610 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2611 | ||
2612 | ioa_cfg->errors_logged++; | |
2613 | dev_err(&ioa_cfg->pdev->dev, | |
2614 | "Adapter being reset due to command timeout.\n"); | |
2615 | ||
2616 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
2617 | ioa_cfg->sdt_state = GET_DUMP; | |
2618 | ||
2619 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) | |
2620 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2621 | ||
2622 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2623 | LEAVE; | |
2624 | } | |
2625 | ||
2626 | /** | |
2627 | * ipr_oper_timeout - Adapter timed out transitioning to operational | |
2628 | * @ipr_cmd: ipr command struct | |
2629 | * | |
2630 | * This function blocks host requests and initiates an | |
2631 | * adapter reset. | |
2632 | * | |
2633 | * Return value: | |
2634 | * none | |
2635 | **/ | |
2636 | static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) | |
2637 | { | |
2638 | unsigned long lock_flags = 0; | |
2639 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
2640 | ||
2641 | ENTER; | |
2642 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2643 | ||
2644 | ioa_cfg->errors_logged++; | |
2645 | dev_err(&ioa_cfg->pdev->dev, | |
2646 | "Adapter timed out transitioning to operational.\n"); | |
2647 | ||
2648 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
2649 | ioa_cfg->sdt_state = GET_DUMP; | |
2650 | ||
2651 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { | |
2652 | if (ipr_fastfail) | |
2653 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; | |
2654 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2655 | } | |
2656 | ||
2657 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2658 | LEAVE; | |
2659 | } | |
2660 | ||
1da177e4 LT |
2661 | /** |
2662 | * ipr_find_ses_entry - Find matching SES in SES table | |
2663 | * @res: resource entry struct of SES | |
2664 | * | |
2665 | * Return value: | |
2666 | * pointer to SES table entry / NULL on failure | |
2667 | **/ | |
2668 | static const struct ipr_ses_table_entry * | |
2669 | ipr_find_ses_entry(struct ipr_resource_entry *res) | |
2670 | { | |
2671 | int i, j, matches; | |
3e7ebdfa | 2672 | struct ipr_std_inq_vpids *vpids; |
1da177e4 LT |
2673 | const struct ipr_ses_table_entry *ste = ipr_ses_table; |
2674 | ||
2675 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { | |
2676 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { | |
2677 | if (ste->compare_product_id_byte[j] == 'X') { | |
3e7ebdfa WB |
2678 | vpids = &res->std_inq_data.vpids; |
2679 | if (vpids->product_id[j] == ste->product_id[j]) | |
1da177e4 LT |
2680 | matches++; |
2681 | else | |
2682 | break; | |
2683 | } else | |
2684 | matches++; | |
2685 | } | |
2686 | ||
2687 | if (matches == IPR_PROD_ID_LEN) | |
2688 | return ste; | |
2689 | } | |
2690 | ||
2691 | return NULL; | |
2692 | } | |
2693 | ||
2694 | /** | |
2695 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus | |
2696 | * @ioa_cfg: ioa config struct | |
2697 | * @bus: SCSI bus | |
2698 | * @bus_width: bus width | |
2699 | * | |
2700 | * Return value: | |
2701 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz | |
2702 | * For a 2-byte wide SCSI bus, the maximum transfer speed is | |
2703 | * twice the maximum transfer rate (e.g. for a wide enabled bus, | |
2704 | * max 160MHz = max 320MB/sec). | |
2705 | **/ | |
2706 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) | |
2707 | { | |
2708 | struct ipr_resource_entry *res; | |
2709 | const struct ipr_ses_table_entry *ste; | |
2710 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); | |
2711 | ||
2712 | /* Loop through each config table entry in the config table buffer */ | |
2713 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3e7ebdfa | 2714 | if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) |
1da177e4 LT |
2715 | continue; |
2716 | ||
3e7ebdfa | 2717 | if (bus != res->bus) |
1da177e4 LT |
2718 | continue; |
2719 | ||
2720 | if (!(ste = ipr_find_ses_entry(res))) | |
2721 | continue; | |
2722 | ||
2723 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); | |
2724 | } | |
2725 | ||
2726 | return max_xfer_rate; | |
2727 | } | |
2728 | ||
2729 | /** | |
2730 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA | |
2731 | * @ioa_cfg: ioa config struct | |
2732 | * @max_delay: max delay in micro-seconds to wait | |
2733 | * | |
2734 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. | |
2735 | * | |
2736 | * Return value: | |
2737 | * 0 on success / other on failure | |
2738 | **/ | |
2739 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) | |
2740 | { | |
2741 | volatile u32 pcii_reg; | |
2742 | int delay = 1; | |
2743 | ||
2744 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ | |
2745 | while (delay < max_delay) { | |
2746 | pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
2747 | ||
2748 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) | |
2749 | return 0; | |
2750 | ||
2751 | /* udelay cannot be used if delay is more than a few milliseconds */ | |
2752 | if ((delay / 1000) > MAX_UDELAY_MS) | |
2753 | mdelay(delay / 1000); | |
2754 | else | |
2755 | udelay(delay); | |
2756 | ||
2757 | delay += delay; | |
2758 | } | |
2759 | return -EIO; | |
2760 | } | |
2761 | ||
dcbad00e WB |
2762 | /** |
2763 | * ipr_get_sis64_dump_data_section - Dump IOA memory | |
2764 | * @ioa_cfg: ioa config struct | |
2765 | * @start_addr: adapter address to dump | |
2766 | * @dest: destination kernel buffer | |
2767 | * @length_in_words: length to dump in 4 byte words | |
2768 | * | |
2769 | * Return value: | |
2770 | * 0 on success | |
2771 | **/ | |
2772 | static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, | |
2773 | u32 start_addr, | |
2774 | __be32 *dest, u32 length_in_words) | |
2775 | { | |
2776 | int i; | |
2777 | ||
2778 | for (i = 0; i < length_in_words; i++) { | |
2779 | writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); | |
2780 | *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); | |
2781 | dest++; | |
2782 | } | |
2783 | ||
2784 | return 0; | |
2785 | } | |
2786 | ||
1da177e4 LT |
2787 | /** |
2788 | * ipr_get_ldump_data_section - Dump IOA memory | |
2789 | * @ioa_cfg: ioa config struct | |
2790 | * @start_addr: adapter address to dump | |
2791 | * @dest: destination kernel buffer | |
2792 | * @length_in_words: length to dump in 4 byte words | |
2793 | * | |
2794 | * Return value: | |
2795 | * 0 on success / -EIO on failure | |
2796 | **/ | |
2797 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, | |
2798 | u32 start_addr, | |
2799 | __be32 *dest, u32 length_in_words) | |
2800 | { | |
2801 | volatile u32 temp_pcii_reg; | |
2802 | int i, delay = 0; | |
2803 | ||
dcbad00e WB |
2804 | if (ioa_cfg->sis64) |
2805 | return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, | |
2806 | dest, length_in_words); | |
2807 | ||
1da177e4 LT |
2808 | /* Write IOA interrupt reg starting LDUMP state */ |
2809 | writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), | |
214777ba | 2810 | ioa_cfg->regs.set_uproc_interrupt_reg32); |
1da177e4 LT |
2811 | |
2812 | /* Wait for IO debug acknowledge */ | |
2813 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
2814 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { | |
2815 | dev_err(&ioa_cfg->pdev->dev, | |
2816 | "IOA dump long data transfer timeout\n"); | |
2817 | return -EIO; | |
2818 | } | |
2819 | ||
2820 | /* Signal LDUMP interlocked - clear IO debug ack */ | |
2821 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
2822 | ioa_cfg->regs.clr_interrupt_reg); | |
2823 | ||
2824 | /* Write Mailbox with starting address */ | |
2825 | writel(start_addr, ioa_cfg->ioa_mailbox); | |
2826 | ||
2827 | /* Signal address valid - clear IOA Reset alert */ | |
2828 | writel(IPR_UPROCI_RESET_ALERT, | |
214777ba | 2829 | ioa_cfg->regs.clr_uproc_interrupt_reg32); |
1da177e4 LT |
2830 | |
2831 | for (i = 0; i < length_in_words; i++) { | |
2832 | /* Wait for IO debug acknowledge */ | |
2833 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
2834 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { | |
2835 | dev_err(&ioa_cfg->pdev->dev, | |
2836 | "IOA dump short data transfer timeout\n"); | |
2837 | return -EIO; | |
2838 | } | |
2839 | ||
2840 | /* Read data from mailbox and increment destination pointer */ | |
2841 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); | |
2842 | dest++; | |
2843 | ||
2844 | /* For all but the last word of data, signal data received */ | |
2845 | if (i < (length_in_words - 1)) { | |
2846 | /* Signal dump data received - Clear IO debug Ack */ | |
2847 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
2848 | ioa_cfg->regs.clr_interrupt_reg); | |
2849 | } | |
2850 | } | |
2851 | ||
2852 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ | |
2853 | writel(IPR_UPROCI_RESET_ALERT, | |
214777ba | 2854 | ioa_cfg->regs.set_uproc_interrupt_reg32); |
1da177e4 LT |
2855 | |
2856 | writel(IPR_UPROCI_IO_DEBUG_ALERT, | |
214777ba | 2857 | ioa_cfg->regs.clr_uproc_interrupt_reg32); |
1da177e4 LT |
2858 | |
2859 | /* Signal dump data received - Clear IO debug Ack */ | |
2860 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
2861 | ioa_cfg->regs.clr_interrupt_reg); | |
2862 | ||
2863 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ | |
2864 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { | |
2865 | temp_pcii_reg = | |
214777ba | 2866 | readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); |
1da177e4 LT |
2867 | |
2868 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) | |
2869 | return 0; | |
2870 | ||
2871 | udelay(10); | |
2872 | delay += 10; | |
2873 | } | |
2874 | ||
2875 | return 0; | |
2876 | } | |
2877 | ||
2878 | #ifdef CONFIG_SCSI_IPR_DUMP | |
2879 | /** | |
2880 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer | |
2881 | * @ioa_cfg: ioa config struct | |
2882 | * @pci_address: adapter address | |
2883 | * @length: length of data to copy | |
2884 | * | |
2885 | * Copy data from PCI adapter to kernel buffer. | |
2886 | * Note: length MUST be a 4 byte multiple | |
2887 | * Return value: | |
2888 | * 0 on success / other on failure | |
2889 | **/ | |
2890 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, | |
2891 | unsigned long pci_address, u32 length) | |
2892 | { | |
2893 | int bytes_copied = 0; | |
4d4dd706 | 2894 | int cur_len, rc, rem_len, rem_page_len, max_dump_size; |
1da177e4 LT |
2895 | __be32 *page; |
2896 | unsigned long lock_flags = 0; | |
2897 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; | |
2898 | ||
4d4dd706 KSS |
2899 | if (ioa_cfg->sis64) |
2900 | max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; | |
2901 | else | |
2902 | max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; | |
2903 | ||
1da177e4 | 2904 | while (bytes_copied < length && |
4d4dd706 | 2905 | (ioa_dump->hdr.len + bytes_copied) < max_dump_size) { |
1da177e4 LT |
2906 | if (ioa_dump->page_offset >= PAGE_SIZE || |
2907 | ioa_dump->page_offset == 0) { | |
2908 | page = (__be32 *)__get_free_page(GFP_ATOMIC); | |
2909 | ||
2910 | if (!page) { | |
2911 | ipr_trace; | |
2912 | return bytes_copied; | |
2913 | } | |
2914 | ||
2915 | ioa_dump->page_offset = 0; | |
2916 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; | |
2917 | ioa_dump->next_page_index++; | |
2918 | } else | |
2919 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; | |
2920 | ||
2921 | rem_len = length - bytes_copied; | |
2922 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; | |
2923 | cur_len = min(rem_len, rem_page_len); | |
2924 | ||
2925 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2926 | if (ioa_cfg->sdt_state == ABORT_DUMP) { | |
2927 | rc = -EIO; | |
2928 | } else { | |
2929 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
2930 | pci_address + bytes_copied, | |
2931 | &page[ioa_dump->page_offset / 4], | |
2932 | (cur_len / sizeof(u32))); | |
2933 | } | |
2934 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2935 | ||
2936 | if (!rc) { | |
2937 | ioa_dump->page_offset += cur_len; | |
2938 | bytes_copied += cur_len; | |
2939 | } else { | |
2940 | ipr_trace; | |
2941 | break; | |
2942 | } | |
2943 | schedule(); | |
2944 | } | |
2945 | ||
2946 | return bytes_copied; | |
2947 | } | |
2948 | ||
2949 | /** | |
2950 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. | |
2951 | * @hdr: dump entry header struct | |
2952 | * | |
2953 | * Return value: | |
2954 | * nothing | |
2955 | **/ | |
2956 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) | |
2957 | { | |
2958 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; | |
2959 | hdr->num_elems = 1; | |
2960 | hdr->offset = sizeof(*hdr); | |
2961 | hdr->status = IPR_DUMP_STATUS_SUCCESS; | |
2962 | } | |
2963 | ||
2964 | /** | |
2965 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. | |
2966 | * @ioa_cfg: ioa config struct | |
2967 | * @driver_dump: driver dump struct | |
2968 | * | |
2969 | * Return value: | |
2970 | * nothing | |
2971 | **/ | |
2972 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, | |
2973 | struct ipr_driver_dump *driver_dump) | |
2974 | { | |
2975 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
2976 | ||
2977 | ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); | |
2978 | driver_dump->ioa_type_entry.hdr.len = | |
2979 | sizeof(struct ipr_dump_ioa_type_entry) - | |
2980 | sizeof(struct ipr_dump_entry_header); | |
2981 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
2982 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; | |
2983 | driver_dump->ioa_type_entry.type = ioa_cfg->type; | |
2984 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | | |
2985 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | | |
2986 | ucode_vpd->minor_release[1]; | |
2987 | driver_dump->hdr.num_entries++; | |
2988 | } | |
2989 | ||
2990 | /** | |
2991 | * ipr_dump_version_data - Fill in the driver version in the dump. | |
2992 | * @ioa_cfg: ioa config struct | |
2993 | * @driver_dump: driver dump struct | |
2994 | * | |
2995 | * Return value: | |
2996 | * nothing | |
2997 | **/ | |
2998 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, | |
2999 | struct ipr_driver_dump *driver_dump) | |
3000 | { | |
3001 | ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); | |
3002 | driver_dump->version_entry.hdr.len = | |
3003 | sizeof(struct ipr_dump_version_entry) - | |
3004 | sizeof(struct ipr_dump_entry_header); | |
3005 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
3006 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; | |
3007 | strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); | |
3008 | driver_dump->hdr.num_entries++; | |
3009 | } | |
3010 | ||
3011 | /** | |
3012 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. | |
3013 | * @ioa_cfg: ioa config struct | |
3014 | * @driver_dump: driver dump struct | |
3015 | * | |
3016 | * Return value: | |
3017 | * nothing | |
3018 | **/ | |
3019 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, | |
3020 | struct ipr_driver_dump *driver_dump) | |
3021 | { | |
3022 | ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); | |
3023 | driver_dump->trace_entry.hdr.len = | |
3024 | sizeof(struct ipr_dump_trace_entry) - | |
3025 | sizeof(struct ipr_dump_entry_header); | |
3026 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
3027 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; | |
3028 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); | |
3029 | driver_dump->hdr.num_entries++; | |
3030 | } | |
3031 | ||
3032 | /** | |
3033 | * ipr_dump_location_data - Fill in the IOA location in the dump. | |
3034 | * @ioa_cfg: ioa config struct | |
3035 | * @driver_dump: driver dump struct | |
3036 | * | |
3037 | * Return value: | |
3038 | * nothing | |
3039 | **/ | |
3040 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, | |
3041 | struct ipr_driver_dump *driver_dump) | |
3042 | { | |
3043 | ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); | |
3044 | driver_dump->location_entry.hdr.len = | |
3045 | sizeof(struct ipr_dump_location_entry) - | |
3046 | sizeof(struct ipr_dump_entry_header); | |
3047 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
3048 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; | |
71610f55 | 3049 | strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); |
1da177e4 LT |
3050 | driver_dump->hdr.num_entries++; |
3051 | } | |
3052 | ||
3053 | /** | |
3054 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. | |
3055 | * @ioa_cfg: ioa config struct | |
3056 | * @dump: dump struct | |
3057 | * | |
3058 | * Return value: | |
3059 | * nothing | |
3060 | **/ | |
3061 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) | |
3062 | { | |
3063 | unsigned long start_addr, sdt_word; | |
3064 | unsigned long lock_flags = 0; | |
3065 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; | |
3066 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; | |
4d4dd706 KSS |
3067 | u32 num_entries, max_num_entries, start_off, end_off; |
3068 | u32 max_dump_size, bytes_to_copy, bytes_copied, rc; | |
1da177e4 | 3069 | struct ipr_sdt *sdt; |
dcbad00e | 3070 | int valid = 1; |
1da177e4 LT |
3071 | int i; |
3072 | ||
3073 | ENTER; | |
3074 | ||
3075 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3076 | ||
41e9a696 | 3077 | if (ioa_cfg->sdt_state != READ_DUMP) { |
1da177e4 LT |
3078 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
3079 | return; | |
3080 | } | |
3081 | ||
110def85 WB |
3082 | if (ioa_cfg->sis64) { |
3083 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3084 | ssleep(IPR_DUMP_DELAY_SECONDS); | |
3085 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3086 | } | |
3087 | ||
1da177e4 LT |
3088 | start_addr = readl(ioa_cfg->ioa_mailbox); |
3089 | ||
dcbad00e | 3090 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { |
1da177e4 LT |
3091 | dev_err(&ioa_cfg->pdev->dev, |
3092 | "Invalid dump table format: %lx\n", start_addr); | |
3093 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3094 | return; | |
3095 | } | |
3096 | ||
3097 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); | |
3098 | ||
3099 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; | |
3100 | ||
3101 | /* Initialize the overall dump header */ | |
3102 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); | |
3103 | driver_dump->hdr.num_entries = 1; | |
3104 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); | |
3105 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; | |
3106 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; | |
3107 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; | |
3108 | ||
3109 | ipr_dump_version_data(ioa_cfg, driver_dump); | |
3110 | ipr_dump_location_data(ioa_cfg, driver_dump); | |
3111 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); | |
3112 | ipr_dump_trace_data(ioa_cfg, driver_dump); | |
3113 | ||
3114 | /* Update dump_header */ | |
3115 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); | |
3116 | ||
3117 | /* IOA Dump entry */ | |
3118 | ipr_init_dump_entry_hdr(&ioa_dump->hdr); | |
1da177e4 LT |
3119 | ioa_dump->hdr.len = 0; |
3120 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
3121 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; | |
3122 | ||
3123 | /* First entries in sdt are actually a list of dump addresses and | |
3124 | lengths to gather the real dump data. sdt represents the pointer | |
3125 | to the ioa generated dump table. Dump data will be extracted based | |
3126 | on entries in this table */ | |
3127 | sdt = &ioa_dump->sdt; | |
3128 | ||
4d4dd706 KSS |
3129 | if (ioa_cfg->sis64) { |
3130 | max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES; | |
3131 | max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; | |
3132 | } else { | |
3133 | max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES; | |
3134 | max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; | |
3135 | } | |
3136 | ||
3137 | bytes_to_copy = offsetof(struct ipr_sdt, entry) + | |
3138 | (max_num_entries * sizeof(struct ipr_sdt_entry)); | |
1da177e4 | 3139 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, |
4d4dd706 | 3140 | bytes_to_copy / sizeof(__be32)); |
1da177e4 LT |
3141 | |
3142 | /* Smart Dump table is ready to use and the first entry is valid */ | |
dcbad00e WB |
3143 | if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && |
3144 | (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { | |
1da177e4 LT |
3145 | dev_err(&ioa_cfg->pdev->dev, |
3146 | "Dump of IOA failed. Dump table not valid: %d, %X.\n", | |
3147 | rc, be32_to_cpu(sdt->hdr.state)); | |
3148 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; | |
3149 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
3150 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3151 | return; | |
3152 | } | |
3153 | ||
3154 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); | |
3155 | ||
4d4dd706 KSS |
3156 | if (num_entries > max_num_entries) |
3157 | num_entries = max_num_entries; | |
3158 | ||
3159 | /* Update dump length to the actual data to be copied */ | |
3160 | dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header); | |
3161 | if (ioa_cfg->sis64) | |
3162 | dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry); | |
3163 | else | |
3164 | dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry); | |
1da177e4 LT |
3165 | |
3166 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3167 | ||
3168 | for (i = 0; i < num_entries; i++) { | |
4d4dd706 | 3169 | if (ioa_dump->hdr.len > max_dump_size) { |
1da177e4 LT |
3170 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; |
3171 | break; | |
3172 | } | |
3173 | ||
3174 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { | |
dcbad00e WB |
3175 | sdt_word = be32_to_cpu(sdt->entry[i].start_token); |
3176 | if (ioa_cfg->sis64) | |
3177 | bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); | |
3178 | else { | |
3179 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; | |
3180 | end_off = be32_to_cpu(sdt->entry[i].end_token); | |
3181 | ||
3182 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) | |
3183 | bytes_to_copy = end_off - start_off; | |
3184 | else | |
3185 | valid = 0; | |
3186 | } | |
3187 | if (valid) { | |
4d4dd706 | 3188 | if (bytes_to_copy > max_dump_size) { |
1da177e4 LT |
3189 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; |
3190 | continue; | |
3191 | } | |
3192 | ||
3193 | /* Copy data from adapter to driver buffers */ | |
3194 | bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, | |
3195 | bytes_to_copy); | |
3196 | ||
3197 | ioa_dump->hdr.len += bytes_copied; | |
3198 | ||
3199 | if (bytes_copied != bytes_to_copy) { | |
3200 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
3201 | break; | |
3202 | } | |
3203 | } | |
3204 | } | |
3205 | } | |
3206 | ||
3207 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); | |
3208 | ||
3209 | /* Update dump_header */ | |
3210 | driver_dump->hdr.len += ioa_dump->hdr.len; | |
3211 | wmb(); | |
3212 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
3213 | LEAVE; | |
3214 | } | |
3215 | ||
3216 | #else | |
203fa3fe | 3217 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0) |
1da177e4 LT |
3218 | #endif |
3219 | ||
3220 | /** | |
3221 | * ipr_release_dump - Free adapter dump memory | |
3222 | * @kref: kref struct | |
3223 | * | |
3224 | * Return value: | |
3225 | * nothing | |
3226 | **/ | |
3227 | static void ipr_release_dump(struct kref *kref) | |
3228 | { | |
203fa3fe | 3229 | struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref); |
1da177e4 LT |
3230 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; |
3231 | unsigned long lock_flags = 0; | |
3232 | int i; | |
3233 | ||
3234 | ENTER; | |
3235 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3236 | ioa_cfg->dump = NULL; | |
3237 | ioa_cfg->sdt_state = INACTIVE; | |
3238 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3239 | ||
3240 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) | |
3241 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); | |
3242 | ||
4d4dd706 | 3243 | vfree(dump->ioa_dump.ioa_data); |
1da177e4 LT |
3244 | kfree(dump); |
3245 | LEAVE; | |
3246 | } | |
3247 | ||
3248 | /** | |
3249 | * ipr_worker_thread - Worker thread | |
c4028958 | 3250 | * @work: ioa config struct |
1da177e4 LT |
3251 | * |
3252 | * Called at task level from a work thread. This function takes care | |
3253 | * of adding and removing device from the mid-layer as configuration | |
3254 | * changes are detected by the adapter. | |
3255 | * | |
3256 | * Return value: | |
3257 | * nothing | |
3258 | **/ | |
c4028958 | 3259 | static void ipr_worker_thread(struct work_struct *work) |
1da177e4 LT |
3260 | { |
3261 | unsigned long lock_flags; | |
3262 | struct ipr_resource_entry *res; | |
3263 | struct scsi_device *sdev; | |
3264 | struct ipr_dump *dump; | |
c4028958 DH |
3265 | struct ipr_ioa_cfg *ioa_cfg = |
3266 | container_of(work, struct ipr_ioa_cfg, work_q); | |
1da177e4 LT |
3267 | u8 bus, target, lun; |
3268 | int did_work; | |
3269 | ||
3270 | ENTER; | |
3271 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3272 | ||
41e9a696 | 3273 | if (ioa_cfg->sdt_state == READ_DUMP) { |
1da177e4 LT |
3274 | dump = ioa_cfg->dump; |
3275 | if (!dump) { | |
3276 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3277 | return; | |
3278 | } | |
3279 | kref_get(&dump->kref); | |
3280 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3281 | ipr_get_ioa_dump(ioa_cfg, dump); | |
3282 | kref_put(&dump->kref, ipr_release_dump); | |
3283 | ||
3284 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4c647e90 | 3285 | if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout) |
1da177e4 LT |
3286 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
3287 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3288 | return; | |
3289 | } | |
3290 | ||
3291 | restart: | |
3292 | do { | |
3293 | did_work = 0; | |
f688f96d | 3294 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { |
1da177e4 LT |
3295 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
3296 | return; | |
3297 | } | |
3298 | ||
3299 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3300 | if (res->del_from_ml && res->sdev) { | |
3301 | did_work = 1; | |
3302 | sdev = res->sdev; | |
3303 | if (!scsi_device_get(sdev)) { | |
5767a1c4 KSS |
3304 | if (!res->add_to_ml) |
3305 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
3306 | else | |
3307 | res->del_from_ml = 0; | |
1da177e4 LT |
3308 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
3309 | scsi_remove_device(sdev); | |
3310 | scsi_device_put(sdev); | |
3311 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3312 | } | |
3313 | break; | |
3314 | } | |
3315 | } | |
203fa3fe | 3316 | } while (did_work); |
1da177e4 LT |
3317 | |
3318 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3319 | if (res->add_to_ml) { | |
3e7ebdfa WB |
3320 | bus = res->bus; |
3321 | target = res->target; | |
3322 | lun = res->lun; | |
1121b794 | 3323 | res->add_to_ml = 0; |
1da177e4 LT |
3324 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
3325 | scsi_add_device(ioa_cfg->host, bus, target, lun); | |
3326 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3327 | goto restart; | |
3328 | } | |
3329 | } | |
3330 | ||
f688f96d | 3331 | ioa_cfg->scan_done = 1; |
1da177e4 | 3332 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
ee959b00 | 3333 | kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); |
1da177e4 LT |
3334 | LEAVE; |
3335 | } | |
3336 | ||
3337 | #ifdef CONFIG_SCSI_IPR_TRACE | |
3338 | /** | |
3339 | * ipr_read_trace - Dump the adapter trace | |
2c3c8bea | 3340 | * @filp: open sysfs file |
1da177e4 | 3341 | * @kobj: kobject struct |
91a69029 | 3342 | * @bin_attr: bin_attribute struct |
1da177e4 LT |
3343 | * @buf: buffer |
3344 | * @off: offset | |
3345 | * @count: buffer size | |
3346 | * | |
3347 | * Return value: | |
3348 | * number of bytes printed to buffer | |
3349 | **/ | |
2c3c8bea | 3350 | static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, |
91a69029 ZR |
3351 | struct bin_attribute *bin_attr, |
3352 | char *buf, loff_t off, size_t count) | |
1da177e4 | 3353 | { |
ee959b00 TJ |
3354 | struct device *dev = container_of(kobj, struct device, kobj); |
3355 | struct Scsi_Host *shost = class_to_shost(dev); | |
1da177e4 LT |
3356 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3357 | unsigned long lock_flags = 0; | |
d777aaf3 | 3358 | ssize_t ret; |
1da177e4 LT |
3359 | |
3360 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
d777aaf3 AM |
3361 | ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, |
3362 | IPR_TRACE_SIZE); | |
1da177e4 | 3363 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
d777aaf3 AM |
3364 | |
3365 | return ret; | |
1da177e4 LT |
3366 | } |
3367 | ||
3368 | static struct bin_attribute ipr_trace_attr = { | |
3369 | .attr = { | |
3370 | .name = "trace", | |
3371 | .mode = S_IRUGO, | |
3372 | }, | |
3373 | .size = 0, | |
3374 | .read = ipr_read_trace, | |
3375 | }; | |
3376 | #endif | |
3377 | ||
3378 | /** | |
3379 | * ipr_show_fw_version - Show the firmware version | |
ee959b00 TJ |
3380 | * @dev: class device struct |
3381 | * @buf: buffer | |
1da177e4 LT |
3382 | * |
3383 | * Return value: | |
3384 | * number of bytes printed to buffer | |
3385 | **/ | |
ee959b00 TJ |
3386 | static ssize_t ipr_show_fw_version(struct device *dev, |
3387 | struct device_attribute *attr, char *buf) | |
1da177e4 | 3388 | { |
ee959b00 | 3389 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3390 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3391 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
3392 | unsigned long lock_flags = 0; | |
3393 | int len; | |
3394 | ||
3395 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3396 | len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", | |
3397 | ucode_vpd->major_release, ucode_vpd->card_type, | |
3398 | ucode_vpd->minor_release[0], | |
3399 | ucode_vpd->minor_release[1]); | |
3400 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3401 | return len; | |
3402 | } | |
3403 | ||
ee959b00 | 3404 | static struct device_attribute ipr_fw_version_attr = { |
1da177e4 LT |
3405 | .attr = { |
3406 | .name = "fw_version", | |
3407 | .mode = S_IRUGO, | |
3408 | }, | |
3409 | .show = ipr_show_fw_version, | |
3410 | }; | |
3411 | ||
3412 | /** | |
3413 | * ipr_show_log_level - Show the adapter's error logging level | |
ee959b00 TJ |
3414 | * @dev: class device struct |
3415 | * @buf: buffer | |
1da177e4 LT |
3416 | * |
3417 | * Return value: | |
3418 | * number of bytes printed to buffer | |
3419 | **/ | |
ee959b00 TJ |
3420 | static ssize_t ipr_show_log_level(struct device *dev, |
3421 | struct device_attribute *attr, char *buf) | |
1da177e4 | 3422 | { |
ee959b00 | 3423 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3424 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3425 | unsigned long lock_flags = 0; | |
3426 | int len; | |
3427 | ||
3428 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3429 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); | |
3430 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3431 | return len; | |
3432 | } | |
3433 | ||
3434 | /** | |
3435 | * ipr_store_log_level - Change the adapter's error logging level | |
ee959b00 TJ |
3436 | * @dev: class device struct |
3437 | * @buf: buffer | |
1da177e4 LT |
3438 | * |
3439 | * Return value: | |
3440 | * number of bytes printed to buffer | |
3441 | **/ | |
ee959b00 | 3442 | static ssize_t ipr_store_log_level(struct device *dev, |
203fa3fe | 3443 | struct device_attribute *attr, |
1da177e4 LT |
3444 | const char *buf, size_t count) |
3445 | { | |
ee959b00 | 3446 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3447 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3448 | unsigned long lock_flags = 0; | |
3449 | ||
3450 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3451 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); | |
3452 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3453 | return strlen(buf); | |
3454 | } | |
3455 | ||
ee959b00 | 3456 | static struct device_attribute ipr_log_level_attr = { |
1da177e4 LT |
3457 | .attr = { |
3458 | .name = "log_level", | |
3459 | .mode = S_IRUGO | S_IWUSR, | |
3460 | }, | |
3461 | .show = ipr_show_log_level, | |
3462 | .store = ipr_store_log_level | |
3463 | }; | |
3464 | ||
3465 | /** | |
3466 | * ipr_store_diagnostics - IOA Diagnostics interface | |
ee959b00 TJ |
3467 | * @dev: device struct |
3468 | * @buf: buffer | |
3469 | * @count: buffer size | |
1da177e4 LT |
3470 | * |
3471 | * This function will reset the adapter and wait a reasonable | |
3472 | * amount of time for any errors that the adapter might log. | |
3473 | * | |
3474 | * Return value: | |
3475 | * count on success / other on failure | |
3476 | **/ | |
ee959b00 TJ |
3477 | static ssize_t ipr_store_diagnostics(struct device *dev, |
3478 | struct device_attribute *attr, | |
1da177e4 LT |
3479 | const char *buf, size_t count) |
3480 | { | |
ee959b00 | 3481 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3482 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3483 | unsigned long lock_flags = 0; | |
3484 | int rc = count; | |
3485 | ||
3486 | if (!capable(CAP_SYS_ADMIN)) | |
3487 | return -EACCES; | |
3488 | ||
1da177e4 | 3489 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
203fa3fe | 3490 | while (ioa_cfg->in_reset_reload) { |
970ea294 BK |
3491 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
3492 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3493 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3494 | } | |
3495 | ||
1da177e4 LT |
3496 | ioa_cfg->errors_logged = 0; |
3497 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
3498 | ||
3499 | if (ioa_cfg->in_reset_reload) { | |
3500 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3501 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3502 | ||
3503 | /* Wait for a second for any errors to be logged */ | |
3504 | msleep(1000); | |
3505 | } else { | |
3506 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3507 | return -EIO; | |
3508 | } | |
3509 | ||
3510 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3511 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) | |
3512 | rc = -EIO; | |
3513 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3514 | ||
3515 | return rc; | |
3516 | } | |
3517 | ||
ee959b00 | 3518 | static struct device_attribute ipr_diagnostics_attr = { |
1da177e4 LT |
3519 | .attr = { |
3520 | .name = "run_diagnostics", | |
3521 | .mode = S_IWUSR, | |
3522 | }, | |
3523 | .store = ipr_store_diagnostics | |
3524 | }; | |
3525 | ||
f37eb54b BK |
3526 | /** |
3527 | * ipr_show_adapter_state - Show the adapter's state | |
ee959b00 TJ |
3528 | * @class_dev: device struct |
3529 | * @buf: buffer | |
f37eb54b BK |
3530 | * |
3531 | * Return value: | |
3532 | * number of bytes printed to buffer | |
3533 | **/ | |
ee959b00 TJ |
3534 | static ssize_t ipr_show_adapter_state(struct device *dev, |
3535 | struct device_attribute *attr, char *buf) | |
f37eb54b | 3536 | { |
ee959b00 | 3537 | struct Scsi_Host *shost = class_to_shost(dev); |
f37eb54b BK |
3538 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3539 | unsigned long lock_flags = 0; | |
3540 | int len; | |
3541 | ||
3542 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
56d6aa33 | 3543 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
f37eb54b BK |
3544 | len = snprintf(buf, PAGE_SIZE, "offline\n"); |
3545 | else | |
3546 | len = snprintf(buf, PAGE_SIZE, "online\n"); | |
3547 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3548 | return len; | |
3549 | } | |
3550 | ||
3551 | /** | |
3552 | * ipr_store_adapter_state - Change adapter state | |
ee959b00 TJ |
3553 | * @dev: device struct |
3554 | * @buf: buffer | |
3555 | * @count: buffer size | |
f37eb54b BK |
3556 | * |
3557 | * This function will change the adapter's state. | |
3558 | * | |
3559 | * Return value: | |
3560 | * count on success / other on failure | |
3561 | **/ | |
ee959b00 TJ |
3562 | static ssize_t ipr_store_adapter_state(struct device *dev, |
3563 | struct device_attribute *attr, | |
f37eb54b BK |
3564 | const char *buf, size_t count) |
3565 | { | |
ee959b00 | 3566 | struct Scsi_Host *shost = class_to_shost(dev); |
f37eb54b BK |
3567 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3568 | unsigned long lock_flags; | |
56d6aa33 | 3569 | int result = count, i; |
f37eb54b BK |
3570 | |
3571 | if (!capable(CAP_SYS_ADMIN)) | |
3572 | return -EACCES; | |
3573 | ||
3574 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
56d6aa33 | 3575 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && |
3576 | !strncmp(buf, "online", 6)) { | |
3577 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { | |
3578 | spin_lock(&ioa_cfg->hrrq[i]._lock); | |
3579 | ioa_cfg->hrrq[i].ioa_is_dead = 0; | |
3580 | spin_unlock(&ioa_cfg->hrrq[i]._lock); | |
3581 | } | |
3582 | wmb(); | |
f37eb54b BK |
3583 | ioa_cfg->reset_retries = 0; |
3584 | ioa_cfg->in_ioa_bringdown = 0; | |
3585 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3586 | } | |
3587 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3588 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3589 | ||
3590 | return result; | |
3591 | } | |
3592 | ||
ee959b00 | 3593 | static struct device_attribute ipr_ioa_state_attr = { |
f37eb54b | 3594 | .attr = { |
49dd0961 | 3595 | .name = "online_state", |
f37eb54b BK |
3596 | .mode = S_IRUGO | S_IWUSR, |
3597 | }, | |
3598 | .show = ipr_show_adapter_state, | |
3599 | .store = ipr_store_adapter_state | |
3600 | }; | |
3601 | ||
1da177e4 LT |
3602 | /** |
3603 | * ipr_store_reset_adapter - Reset the adapter | |
ee959b00 TJ |
3604 | * @dev: device struct |
3605 | * @buf: buffer | |
3606 | * @count: buffer size | |
1da177e4 LT |
3607 | * |
3608 | * This function will reset the adapter. | |
3609 | * | |
3610 | * Return value: | |
3611 | * count on success / other on failure | |
3612 | **/ | |
ee959b00 TJ |
3613 | static ssize_t ipr_store_reset_adapter(struct device *dev, |
3614 | struct device_attribute *attr, | |
1da177e4 LT |
3615 | const char *buf, size_t count) |
3616 | { | |
ee959b00 | 3617 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3618 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3619 | unsigned long lock_flags; | |
3620 | int result = count; | |
3621 | ||
3622 | if (!capable(CAP_SYS_ADMIN)) | |
3623 | return -EACCES; | |
3624 | ||
3625 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3626 | if (!ioa_cfg->in_reset_reload) | |
3627 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
3628 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3629 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3630 | ||
3631 | return result; | |
3632 | } | |
3633 | ||
ee959b00 | 3634 | static struct device_attribute ipr_ioa_reset_attr = { |
1da177e4 LT |
3635 | .attr = { |
3636 | .name = "reset_host", | |
3637 | .mode = S_IWUSR, | |
3638 | }, | |
3639 | .store = ipr_store_reset_adapter | |
3640 | }; | |
3641 | ||
511cbce2 | 3642 | static int ipr_iopoll(struct irq_poll *iop, int budget); |
b53d124a | 3643 | /** |
3644 | * ipr_show_iopoll_weight - Show ipr polling mode | |
3645 | * @dev: class device struct | |
3646 | * @buf: buffer | |
3647 | * | |
3648 | * Return value: | |
3649 | * number of bytes printed to buffer | |
3650 | **/ | |
3651 | static ssize_t ipr_show_iopoll_weight(struct device *dev, | |
3652 | struct device_attribute *attr, char *buf) | |
3653 | { | |
3654 | struct Scsi_Host *shost = class_to_shost(dev); | |
3655 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3656 | unsigned long lock_flags = 0; | |
3657 | int len; | |
3658 | ||
3659 | spin_lock_irqsave(shost->host_lock, lock_flags); | |
3660 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight); | |
3661 | spin_unlock_irqrestore(shost->host_lock, lock_flags); | |
3662 | ||
3663 | return len; | |
3664 | } | |
3665 | ||
3666 | /** | |
3667 | * ipr_store_iopoll_weight - Change the adapter's polling mode | |
3668 | * @dev: class device struct | |
3669 | * @buf: buffer | |
3670 | * | |
3671 | * Return value: | |
3672 | * number of bytes printed to buffer | |
3673 | **/ | |
3674 | static ssize_t ipr_store_iopoll_weight(struct device *dev, | |
3675 | struct device_attribute *attr, | |
3676 | const char *buf, size_t count) | |
3677 | { | |
3678 | struct Scsi_Host *shost = class_to_shost(dev); | |
3679 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3680 | unsigned long user_iopoll_weight; | |
3681 | unsigned long lock_flags = 0; | |
3682 | int i; | |
3683 | ||
3684 | if (!ioa_cfg->sis64) { | |
511cbce2 | 3685 | dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n"); |
b53d124a | 3686 | return -EINVAL; |
3687 | } | |
3688 | if (kstrtoul(buf, 10, &user_iopoll_weight)) | |
3689 | return -EINVAL; | |
3690 | ||
3691 | if (user_iopoll_weight > 256) { | |
511cbce2 | 3692 | dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n"); |
b53d124a | 3693 | return -EINVAL; |
3694 | } | |
3695 | ||
3696 | if (user_iopoll_weight == ioa_cfg->iopoll_weight) { | |
511cbce2 | 3697 | dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n"); |
b53d124a | 3698 | return strlen(buf); |
3699 | } | |
3700 | ||
89f8b33c | 3701 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
b53d124a | 3702 | for (i = 1; i < ioa_cfg->hrrq_num; i++) |
511cbce2 | 3703 | irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); |
b53d124a | 3704 | } |
3705 | ||
3706 | spin_lock_irqsave(shost->host_lock, lock_flags); | |
3707 | ioa_cfg->iopoll_weight = user_iopoll_weight; | |
89f8b33c | 3708 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
b53d124a | 3709 | for (i = 1; i < ioa_cfg->hrrq_num; i++) { |
511cbce2 | 3710 | irq_poll_init(&ioa_cfg->hrrq[i].iopoll, |
b53d124a | 3711 | ioa_cfg->iopoll_weight, ipr_iopoll); |
b53d124a | 3712 | } |
3713 | } | |
3714 | spin_unlock_irqrestore(shost->host_lock, lock_flags); | |
3715 | ||
3716 | return strlen(buf); | |
3717 | } | |
3718 | ||
3719 | static struct device_attribute ipr_iopoll_weight_attr = { | |
3720 | .attr = { | |
3721 | .name = "iopoll_weight", | |
3722 | .mode = S_IRUGO | S_IWUSR, | |
3723 | }, | |
3724 | .show = ipr_show_iopoll_weight, | |
3725 | .store = ipr_store_iopoll_weight | |
3726 | }; | |
3727 | ||
1da177e4 LT |
3728 | /** |
3729 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer | |
3730 | * @buf_len: buffer length | |
3731 | * | |
3732 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather | |
3733 | * list to use for microcode download | |
3734 | * | |
3735 | * Return value: | |
3736 | * pointer to sglist / NULL on failure | |
3737 | **/ | |
3738 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) | |
3739 | { | |
3740 | int sg_size, order, bsize_elem, num_elem, i, j; | |
3741 | struct ipr_sglist *sglist; | |
3742 | struct scatterlist *scatterlist; | |
3743 | struct page *page; | |
3744 | ||
3745 | /* Get the minimum size per scatter/gather element */ | |
3746 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); | |
3747 | ||
3748 | /* Get the actual size per element */ | |
3749 | order = get_order(sg_size); | |
3750 | ||
3751 | /* Determine the actual number of bytes per element */ | |
3752 | bsize_elem = PAGE_SIZE * (1 << order); | |
3753 | ||
3754 | /* Determine the actual number of sg entries needed */ | |
3755 | if (buf_len % bsize_elem) | |
3756 | num_elem = (buf_len / bsize_elem) + 1; | |
3757 | else | |
3758 | num_elem = buf_len / bsize_elem; | |
3759 | ||
3760 | /* Allocate a scatter/gather list for the DMA */ | |
0bc42e35 | 3761 | sglist = kzalloc(sizeof(struct ipr_sglist) + |
1da177e4 LT |
3762 | (sizeof(struct scatterlist) * (num_elem - 1)), |
3763 | GFP_KERNEL); | |
3764 | ||
3765 | if (sglist == NULL) { | |
3766 | ipr_trace; | |
3767 | return NULL; | |
3768 | } | |
3769 | ||
1da177e4 | 3770 | scatterlist = sglist->scatterlist; |
45711f1a | 3771 | sg_init_table(scatterlist, num_elem); |
1da177e4 LT |
3772 | |
3773 | sglist->order = order; | |
3774 | sglist->num_sg = num_elem; | |
3775 | ||
3776 | /* Allocate a bunch of sg elements */ | |
3777 | for (i = 0; i < num_elem; i++) { | |
3778 | page = alloc_pages(GFP_KERNEL, order); | |
3779 | if (!page) { | |
3780 | ipr_trace; | |
3781 | ||
3782 | /* Free up what we already allocated */ | |
3783 | for (j = i - 1; j >= 0; j--) | |
45711f1a | 3784 | __free_pages(sg_page(&scatterlist[j]), order); |
1da177e4 LT |
3785 | kfree(sglist); |
3786 | return NULL; | |
3787 | } | |
3788 | ||
642f1490 | 3789 | sg_set_page(&scatterlist[i], page, 0, 0); |
1da177e4 LT |
3790 | } |
3791 | ||
3792 | return sglist; | |
3793 | } | |
3794 | ||
3795 | /** | |
3796 | * ipr_free_ucode_buffer - Frees a microcode download buffer | |
3797 | * @p_dnld: 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 | int i; | |
3808 | ||
3809 | for (i = 0; i < sglist->num_sg; i++) | |
45711f1a | 3810 | __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); |
1da177e4 LT |
3811 | |
3812 | kfree(sglist); | |
3813 | } | |
3814 | ||
3815 | /** | |
3816 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer | |
3817 | * @sglist: scatter/gather list pointer | |
3818 | * @buffer: buffer pointer | |
3819 | * @len: buffer length | |
3820 | * | |
3821 | * Copy a microcode image from a user buffer into a buffer allocated by | |
3822 | * ipr_alloc_ucode_buffer | |
3823 | * | |
3824 | * Return value: | |
3825 | * 0 on success / other on failure | |
3826 | **/ | |
3827 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, | |
3828 | u8 *buffer, u32 len) | |
3829 | { | |
3830 | int bsize_elem, i, result = 0; | |
3831 | struct scatterlist *scatterlist; | |
3832 | void *kaddr; | |
3833 | ||
3834 | /* Determine the actual number of bytes per element */ | |
3835 | bsize_elem = PAGE_SIZE * (1 << sglist->order); | |
3836 | ||
3837 | scatterlist = sglist->scatterlist; | |
3838 | ||
3839 | for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { | |
45711f1a JA |
3840 | struct page *page = sg_page(&scatterlist[i]); |
3841 | ||
3842 | kaddr = kmap(page); | |
1da177e4 | 3843 | memcpy(kaddr, buffer, bsize_elem); |
45711f1a | 3844 | kunmap(page); |
1da177e4 LT |
3845 | |
3846 | scatterlist[i].length = bsize_elem; | |
3847 | ||
3848 | if (result != 0) { | |
3849 | ipr_trace; | |
3850 | return result; | |
3851 | } | |
3852 | } | |
3853 | ||
3854 | if (len % bsize_elem) { | |
45711f1a JA |
3855 | struct page *page = sg_page(&scatterlist[i]); |
3856 | ||
3857 | kaddr = kmap(page); | |
1da177e4 | 3858 | memcpy(kaddr, buffer, len % bsize_elem); |
45711f1a | 3859 | kunmap(page); |
1da177e4 LT |
3860 | |
3861 | scatterlist[i].length = len % bsize_elem; | |
3862 | } | |
3863 | ||
3864 | sglist->buffer_len = len; | |
3865 | return result; | |
3866 | } | |
3867 | ||
a32c055f WB |
3868 | /** |
3869 | * ipr_build_ucode_ioadl64 - Build a microcode download IOADL | |
3870 | * @ipr_cmd: ipr command struct | |
3871 | * @sglist: scatter/gather list | |
3872 | * | |
3873 | * Builds a microcode download IOA data list (IOADL). | |
3874 | * | |
3875 | **/ | |
3876 | static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, | |
3877 | struct ipr_sglist *sglist) | |
3878 | { | |
3879 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
3880 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; | |
3881 | struct scatterlist *scatterlist = sglist->scatterlist; | |
3882 | int i; | |
3883 | ||
3884 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; | |
3885 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
3886 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); | |
3887 | ||
3888 | ioarcb->ioadl_len = | |
3889 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); | |
3890 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
3891 | ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); | |
3892 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); | |
3893 | ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); | |
3894 | } | |
3895 | ||
3896 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
3897 | } | |
3898 | ||
1da177e4 | 3899 | /** |
12baa420 | 3900 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
1da177e4 LT |
3901 | * @ipr_cmd: ipr command struct |
3902 | * @sglist: scatter/gather list | |
1da177e4 | 3903 | * |
12baa420 | 3904 | * Builds a microcode download IOA data list (IOADL). |
1da177e4 | 3905 | * |
1da177e4 | 3906 | **/ |
12baa420 BK |
3907 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
3908 | struct ipr_sglist *sglist) | |
1da177e4 | 3909 | { |
1da177e4 | 3910 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
a32c055f | 3911 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
1da177e4 LT |
3912 | struct scatterlist *scatterlist = sglist->scatterlist; |
3913 | int i; | |
3914 | ||
12baa420 | 3915 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
1da177e4 | 3916 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
a32c055f WB |
3917 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); |
3918 | ||
3919 | ioarcb->ioadl_len = | |
1da177e4 LT |
3920 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
3921 | ||
3922 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
3923 | ioadl[i].flags_and_data_len = | |
3924 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); | |
3925 | ioadl[i].address = | |
3926 | cpu_to_be32(sg_dma_address(&scatterlist[i])); | |
3927 | } | |
3928 | ||
12baa420 BK |
3929 | ioadl[i-1].flags_and_data_len |= |
3930 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
3931 | } | |
3932 | ||
3933 | /** | |
3934 | * ipr_update_ioa_ucode - Update IOA's microcode | |
3935 | * @ioa_cfg: ioa config struct | |
3936 | * @sglist: scatter/gather list | |
3937 | * | |
3938 | * Initiate an adapter reset to update the IOA's microcode | |
3939 | * | |
3940 | * Return value: | |
3941 | * 0 on success / -EIO on failure | |
3942 | **/ | |
3943 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, | |
3944 | struct ipr_sglist *sglist) | |
3945 | { | |
3946 | unsigned long lock_flags; | |
3947 | ||
3948 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
203fa3fe | 3949 | while (ioa_cfg->in_reset_reload) { |
970ea294 BK |
3950 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
3951 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3952 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3953 | } | |
12baa420 BK |
3954 | |
3955 | if (ioa_cfg->ucode_sglist) { | |
3956 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3957 | dev_err(&ioa_cfg->pdev->dev, | |
3958 | "Microcode download already in progress\n"); | |
3959 | return -EIO; | |
1da177e4 | 3960 | } |
12baa420 | 3961 | |
d73341bf AB |
3962 | sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev, |
3963 | sglist->scatterlist, sglist->num_sg, | |
3964 | DMA_TO_DEVICE); | |
12baa420 BK |
3965 | |
3966 | if (!sglist->num_dma_sg) { | |
3967 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3968 | dev_err(&ioa_cfg->pdev->dev, | |
3969 | "Failed to map microcode download buffer!\n"); | |
1da177e4 LT |
3970 | return -EIO; |
3971 | } | |
3972 | ||
12baa420 BK |
3973 | ioa_cfg->ucode_sglist = sglist; |
3974 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
3975 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3976 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3977 | ||
3978 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3979 | ioa_cfg->ucode_sglist = NULL; | |
3980 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1da177e4 LT |
3981 | return 0; |
3982 | } | |
3983 | ||
3984 | /** | |
3985 | * ipr_store_update_fw - Update the firmware on the adapter | |
ee959b00 TJ |
3986 | * @class_dev: device struct |
3987 | * @buf: buffer | |
3988 | * @count: buffer size | |
1da177e4 LT |
3989 | * |
3990 | * This function will update the firmware on the adapter. | |
3991 | * | |
3992 | * Return value: | |
3993 | * count on success / other on failure | |
3994 | **/ | |
ee959b00 TJ |
3995 | static ssize_t ipr_store_update_fw(struct device *dev, |
3996 | struct device_attribute *attr, | |
3997 | const char *buf, size_t count) | |
1da177e4 | 3998 | { |
ee959b00 | 3999 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
4000 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4001 | struct ipr_ucode_image_header *image_hdr; | |
4002 | const struct firmware *fw_entry; | |
4003 | struct ipr_sglist *sglist; | |
1da177e4 LT |
4004 | char fname[100]; |
4005 | char *src; | |
21b81716 | 4006 | char *endline; |
d63c7dd5 | 4007 | int result, dnld_size; |
1da177e4 LT |
4008 | |
4009 | if (!capable(CAP_SYS_ADMIN)) | |
4010 | return -EACCES; | |
4011 | ||
d63c7dd5 | 4012 | snprintf(fname, sizeof(fname), "%s", buf); |
1da177e4 | 4013 | |
21b81716 GKB |
4014 | endline = strchr(fname, '\n'); |
4015 | if (endline) | |
4016 | *endline = '\0'; | |
4017 | ||
203fa3fe | 4018 | if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { |
1da177e4 LT |
4019 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); |
4020 | return -EIO; | |
4021 | } | |
4022 | ||
4023 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; | |
4024 | ||
1da177e4 LT |
4025 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); |
4026 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); | |
4027 | sglist = ipr_alloc_ucode_buffer(dnld_size); | |
4028 | ||
4029 | if (!sglist) { | |
4030 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); | |
4031 | release_firmware(fw_entry); | |
4032 | return -ENOMEM; | |
4033 | } | |
4034 | ||
4035 | result = ipr_copy_ucode_buffer(sglist, src, dnld_size); | |
4036 | ||
4037 | if (result) { | |
4038 | dev_err(&ioa_cfg->pdev->dev, | |
4039 | "Microcode buffer copy to DMA buffer failed\n"); | |
12baa420 | 4040 | goto out; |
1da177e4 LT |
4041 | } |
4042 | ||
14ed9cc7 WB |
4043 | ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n"); |
4044 | ||
12baa420 | 4045 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
1da177e4 | 4046 | |
12baa420 BK |
4047 | if (!result) |
4048 | result = count; | |
4049 | out: | |
1da177e4 LT |
4050 | ipr_free_ucode_buffer(sglist); |
4051 | release_firmware(fw_entry); | |
12baa420 | 4052 | return result; |
1da177e4 LT |
4053 | } |
4054 | ||
ee959b00 | 4055 | static struct device_attribute ipr_update_fw_attr = { |
1da177e4 LT |
4056 | .attr = { |
4057 | .name = "update_fw", | |
4058 | .mode = S_IWUSR, | |
4059 | }, | |
4060 | .store = ipr_store_update_fw | |
4061 | }; | |
4062 | ||
75576bb9 WB |
4063 | /** |
4064 | * ipr_show_fw_type - Show the adapter's firmware type. | |
4065 | * @dev: class device struct | |
4066 | * @buf: buffer | |
4067 | * | |
4068 | * Return value: | |
4069 | * number of bytes printed to buffer | |
4070 | **/ | |
4071 | static ssize_t ipr_show_fw_type(struct device *dev, | |
4072 | struct device_attribute *attr, char *buf) | |
4073 | { | |
4074 | struct Scsi_Host *shost = class_to_shost(dev); | |
4075 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
4076 | unsigned long lock_flags = 0; | |
4077 | int len; | |
4078 | ||
4079 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4080 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64); | |
4081 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4082 | return len; | |
4083 | } | |
4084 | ||
4085 | static struct device_attribute ipr_ioa_fw_type_attr = { | |
4086 | .attr = { | |
4087 | .name = "fw_type", | |
4088 | .mode = S_IRUGO, | |
4089 | }, | |
4090 | .show = ipr_show_fw_type | |
4091 | }; | |
4092 | ||
ee959b00 | 4093 | static struct device_attribute *ipr_ioa_attrs[] = { |
1da177e4 LT |
4094 | &ipr_fw_version_attr, |
4095 | &ipr_log_level_attr, | |
4096 | &ipr_diagnostics_attr, | |
f37eb54b | 4097 | &ipr_ioa_state_attr, |
1da177e4 LT |
4098 | &ipr_ioa_reset_attr, |
4099 | &ipr_update_fw_attr, | |
75576bb9 | 4100 | &ipr_ioa_fw_type_attr, |
b53d124a | 4101 | &ipr_iopoll_weight_attr, |
1da177e4 LT |
4102 | NULL, |
4103 | }; | |
4104 | ||
4105 | #ifdef CONFIG_SCSI_IPR_DUMP | |
4106 | /** | |
4107 | * ipr_read_dump - Dump the adapter | |
2c3c8bea | 4108 | * @filp: open sysfs file |
1da177e4 | 4109 | * @kobj: kobject struct |
91a69029 | 4110 | * @bin_attr: bin_attribute struct |
1da177e4 LT |
4111 | * @buf: buffer |
4112 | * @off: offset | |
4113 | * @count: buffer size | |
4114 | * | |
4115 | * Return value: | |
4116 | * number of bytes printed to buffer | |
4117 | **/ | |
2c3c8bea | 4118 | static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, |
91a69029 ZR |
4119 | struct bin_attribute *bin_attr, |
4120 | char *buf, loff_t off, size_t count) | |
1da177e4 | 4121 | { |
ee959b00 | 4122 | struct device *cdev = container_of(kobj, struct device, kobj); |
1da177e4 LT |
4123 | struct Scsi_Host *shost = class_to_shost(cdev); |
4124 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
4125 | struct ipr_dump *dump; | |
4126 | unsigned long lock_flags = 0; | |
4127 | char *src; | |
4d4dd706 | 4128 | int len, sdt_end; |
1da177e4 LT |
4129 | size_t rc = count; |
4130 | ||
4131 | if (!capable(CAP_SYS_ADMIN)) | |
4132 | return -EACCES; | |
4133 | ||
4134 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4135 | dump = ioa_cfg->dump; | |
4136 | ||
4137 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { | |
4138 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4139 | return 0; | |
4140 | } | |
4141 | kref_get(&dump->kref); | |
4142 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4143 | ||
4144 | if (off > dump->driver_dump.hdr.len) { | |
4145 | kref_put(&dump->kref, ipr_release_dump); | |
4146 | return 0; | |
4147 | } | |
4148 | ||
4149 | if (off + count > dump->driver_dump.hdr.len) { | |
4150 | count = dump->driver_dump.hdr.len - off; | |
4151 | rc = count; | |
4152 | } | |
4153 | ||
4154 | if (count && off < sizeof(dump->driver_dump)) { | |
4155 | if (off + count > sizeof(dump->driver_dump)) | |
4156 | len = sizeof(dump->driver_dump) - off; | |
4157 | else | |
4158 | len = count; | |
4159 | src = (u8 *)&dump->driver_dump + off; | |
4160 | memcpy(buf, src, len); | |
4161 | buf += len; | |
4162 | off += len; | |
4163 | count -= len; | |
4164 | } | |
4165 | ||
4166 | off -= sizeof(dump->driver_dump); | |
4167 | ||
4d4dd706 KSS |
4168 | if (ioa_cfg->sis64) |
4169 | sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + | |
4170 | (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) * | |
4171 | sizeof(struct ipr_sdt_entry)); | |
4172 | else | |
4173 | sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + | |
4174 | (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry)); | |
4175 | ||
4176 | if (count && off < sdt_end) { | |
4177 | if (off + count > sdt_end) | |
4178 | len = sdt_end - off; | |
1da177e4 LT |
4179 | else |
4180 | len = count; | |
4181 | src = (u8 *)&dump->ioa_dump + off; | |
4182 | memcpy(buf, src, len); | |
4183 | buf += len; | |
4184 | off += len; | |
4185 | count -= len; | |
4186 | } | |
4187 | ||
4d4dd706 | 4188 | off -= sdt_end; |
1da177e4 LT |
4189 | |
4190 | while (count) { | |
4191 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) | |
4192 | len = PAGE_ALIGN(off) - off; | |
4193 | else | |
4194 | len = count; | |
4195 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; | |
4196 | src += off & ~PAGE_MASK; | |
4197 | memcpy(buf, src, len); | |
4198 | buf += len; | |
4199 | off += len; | |
4200 | count -= len; | |
4201 | } | |
4202 | ||
4203 | kref_put(&dump->kref, ipr_release_dump); | |
4204 | return rc; | |
4205 | } | |
4206 | ||
4207 | /** | |
4208 | * ipr_alloc_dump - Prepare for adapter dump | |
4209 | * @ioa_cfg: ioa config struct | |
4210 | * | |
4211 | * Return value: | |
4212 | * 0 on success / other on failure | |
4213 | **/ | |
4214 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) | |
4215 | { | |
4216 | struct ipr_dump *dump; | |
4d4dd706 | 4217 | __be32 **ioa_data; |
1da177e4 LT |
4218 | unsigned long lock_flags = 0; |
4219 | ||
0bc42e35 | 4220 | dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); |
1da177e4 LT |
4221 | |
4222 | if (!dump) { | |
4223 | ipr_err("Dump memory allocation failed\n"); | |
4224 | return -ENOMEM; | |
4225 | } | |
4226 | ||
4d4dd706 KSS |
4227 | if (ioa_cfg->sis64) |
4228 | ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *)); | |
4229 | else | |
4230 | ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *)); | |
4231 | ||
4232 | if (!ioa_data) { | |
4233 | ipr_err("Dump memory allocation failed\n"); | |
4234 | kfree(dump); | |
4235 | return -ENOMEM; | |
4236 | } | |
4237 | ||
4238 | dump->ioa_dump.ioa_data = ioa_data; | |
4239 | ||
1da177e4 LT |
4240 | kref_init(&dump->kref); |
4241 | dump->ioa_cfg = ioa_cfg; | |
4242 | ||
4243 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4244 | ||
4245 | if (INACTIVE != ioa_cfg->sdt_state) { | |
4246 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4d4dd706 | 4247 | vfree(dump->ioa_dump.ioa_data); |
1da177e4 LT |
4248 | kfree(dump); |
4249 | return 0; | |
4250 | } | |
4251 | ||
4252 | ioa_cfg->dump = dump; | |
4253 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
56d6aa33 | 4254 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) { |
1da177e4 LT |
4255 | ioa_cfg->dump_taken = 1; |
4256 | schedule_work(&ioa_cfg->work_q); | |
4257 | } | |
4258 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4259 | ||
1da177e4 LT |
4260 | return 0; |
4261 | } | |
4262 | ||
4263 | /** | |
4264 | * ipr_free_dump - Free adapter dump memory | |
4265 | * @ioa_cfg: ioa config struct | |
4266 | * | |
4267 | * Return value: | |
4268 | * 0 on success / other on failure | |
4269 | **/ | |
4270 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) | |
4271 | { | |
4272 | struct ipr_dump *dump; | |
4273 | unsigned long lock_flags = 0; | |
4274 | ||
4275 | ENTER; | |
4276 | ||
4277 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4278 | dump = ioa_cfg->dump; | |
4279 | if (!dump) { | |
4280 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4281 | return 0; | |
4282 | } | |
4283 | ||
4284 | ioa_cfg->dump = NULL; | |
4285 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4286 | ||
4287 | kref_put(&dump->kref, ipr_release_dump); | |
4288 | ||
4289 | LEAVE; | |
4290 | return 0; | |
4291 | } | |
4292 | ||
4293 | /** | |
4294 | * ipr_write_dump - Setup dump state of adapter | |
2c3c8bea | 4295 | * @filp: open sysfs file |
1da177e4 | 4296 | * @kobj: kobject struct |
91a69029 | 4297 | * @bin_attr: bin_attribute struct |
1da177e4 LT |
4298 | * @buf: buffer |
4299 | * @off: offset | |
4300 | * @count: buffer size | |
4301 | * | |
4302 | * Return value: | |
4303 | * number of bytes printed to buffer | |
4304 | **/ | |
2c3c8bea | 4305 | static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, |
91a69029 ZR |
4306 | struct bin_attribute *bin_attr, |
4307 | char *buf, loff_t off, size_t count) | |
1da177e4 | 4308 | { |
ee959b00 | 4309 | struct device *cdev = container_of(kobj, struct device, kobj); |
1da177e4 LT |
4310 | struct Scsi_Host *shost = class_to_shost(cdev); |
4311 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
4312 | int rc; | |
4313 | ||
4314 | if (!capable(CAP_SYS_ADMIN)) | |
4315 | return -EACCES; | |
4316 | ||
4317 | if (buf[0] == '1') | |
4318 | rc = ipr_alloc_dump(ioa_cfg); | |
4319 | else if (buf[0] == '0') | |
4320 | rc = ipr_free_dump(ioa_cfg); | |
4321 | else | |
4322 | return -EINVAL; | |
4323 | ||
4324 | if (rc) | |
4325 | return rc; | |
4326 | else | |
4327 | return count; | |
4328 | } | |
4329 | ||
4330 | static struct bin_attribute ipr_dump_attr = { | |
4331 | .attr = { | |
4332 | .name = "dump", | |
4333 | .mode = S_IRUSR | S_IWUSR, | |
4334 | }, | |
4335 | .size = 0, | |
4336 | .read = ipr_read_dump, | |
4337 | .write = ipr_write_dump | |
4338 | }; | |
4339 | #else | |
4340 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; | |
4341 | #endif | |
4342 | ||
4343 | /** | |
4344 | * ipr_change_queue_depth - Change the device's queue depth | |
4345 | * @sdev: scsi device struct | |
4346 | * @qdepth: depth to set | |
e881a172 | 4347 | * @reason: calling context |
1da177e4 LT |
4348 | * |
4349 | * Return value: | |
4350 | * actual depth set | |
4351 | **/ | |
db5ed4df | 4352 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) |
1da177e4 | 4353 | { |
35a39691 BK |
4354 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4355 | struct ipr_resource_entry *res; | |
4356 | unsigned long lock_flags = 0; | |
4357 | ||
4358 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4359 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4360 | ||
4361 | if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) | |
4362 | qdepth = IPR_MAX_CMD_PER_ATA_LUN; | |
4363 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4364 | ||
db5ed4df | 4365 | scsi_change_queue_depth(sdev, qdepth); |
1da177e4 LT |
4366 | return sdev->queue_depth; |
4367 | } | |
4368 | ||
1da177e4 LT |
4369 | /** |
4370 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device | |
4371 | * @dev: device struct | |
46d74563 | 4372 | * @attr: device attribute structure |
1da177e4 LT |
4373 | * @buf: buffer |
4374 | * | |
4375 | * Return value: | |
4376 | * number of bytes printed to buffer | |
4377 | **/ | |
10523b3b | 4378 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4379 | { |
4380 | struct scsi_device *sdev = to_scsi_device(dev); | |
4381 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4382 | struct ipr_resource_entry *res; | |
4383 | unsigned long lock_flags = 0; | |
4384 | ssize_t len = -ENXIO; | |
4385 | ||
4386 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4387 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4388 | if (res) | |
3e7ebdfa | 4389 | len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); |
1da177e4 LT |
4390 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
4391 | return len; | |
4392 | } | |
4393 | ||
4394 | static struct device_attribute ipr_adapter_handle_attr = { | |
4395 | .attr = { | |
4396 | .name = "adapter_handle", | |
4397 | .mode = S_IRUSR, | |
4398 | }, | |
4399 | .show = ipr_show_adapter_handle | |
4400 | }; | |
4401 | ||
3e7ebdfa | 4402 | /** |
5adcbeb3 WB |
4403 | * ipr_show_resource_path - Show the resource path or the resource address for |
4404 | * this device. | |
3e7ebdfa | 4405 | * @dev: device struct |
46d74563 | 4406 | * @attr: device attribute structure |
3e7ebdfa WB |
4407 | * @buf: buffer |
4408 | * | |
4409 | * Return value: | |
4410 | * number of bytes printed to buffer | |
4411 | **/ | |
4412 | static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) | |
4413 | { | |
4414 | struct scsi_device *sdev = to_scsi_device(dev); | |
4415 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4416 | struct ipr_resource_entry *res; | |
4417 | unsigned long lock_flags = 0; | |
4418 | ssize_t len = -ENXIO; | |
4419 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
4420 | ||
4421 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4422 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
5adcbeb3 | 4423 | if (res && ioa_cfg->sis64) |
3e7ebdfa | 4424 | len = snprintf(buf, PAGE_SIZE, "%s\n", |
b3b3b407 BK |
4425 | __ipr_format_res_path(res->res_path, buffer, |
4426 | sizeof(buffer))); | |
5adcbeb3 WB |
4427 | else if (res) |
4428 | len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no, | |
4429 | res->bus, res->target, res->lun); | |
4430 | ||
3e7ebdfa WB |
4431 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
4432 | return len; | |
4433 | } | |
4434 | ||
4435 | static struct device_attribute ipr_resource_path_attr = { | |
4436 | .attr = { | |
4437 | .name = "resource_path", | |
75576bb9 | 4438 | .mode = S_IRUGO, |
3e7ebdfa WB |
4439 | }, |
4440 | .show = ipr_show_resource_path | |
4441 | }; | |
4442 | ||
46d74563 WB |
4443 | /** |
4444 | * ipr_show_device_id - Show the device_id for this device. | |
4445 | * @dev: device struct | |
4446 | * @attr: device attribute structure | |
4447 | * @buf: buffer | |
4448 | * | |
4449 | * Return value: | |
4450 | * number of bytes printed to buffer | |
4451 | **/ | |
4452 | static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) | |
4453 | { | |
4454 | struct scsi_device *sdev = to_scsi_device(dev); | |
4455 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4456 | struct ipr_resource_entry *res; | |
4457 | unsigned long lock_flags = 0; | |
4458 | ssize_t len = -ENXIO; | |
4459 | ||
4460 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4461 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4462 | if (res && ioa_cfg->sis64) | |
bb8647e8 | 4463 | len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id)); |
46d74563 WB |
4464 | else if (res) |
4465 | len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn); | |
4466 | ||
4467 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4468 | return len; | |
4469 | } | |
4470 | ||
4471 | static struct device_attribute ipr_device_id_attr = { | |
4472 | .attr = { | |
4473 | .name = "device_id", | |
4474 | .mode = S_IRUGO, | |
4475 | }, | |
4476 | .show = ipr_show_device_id | |
4477 | }; | |
4478 | ||
75576bb9 WB |
4479 | /** |
4480 | * ipr_show_resource_type - Show the resource type for this device. | |
4481 | * @dev: device struct | |
46d74563 | 4482 | * @attr: device attribute structure |
75576bb9 WB |
4483 | * @buf: buffer |
4484 | * | |
4485 | * Return value: | |
4486 | * number of bytes printed to buffer | |
4487 | **/ | |
4488 | static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) | |
4489 | { | |
4490 | struct scsi_device *sdev = to_scsi_device(dev); | |
4491 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4492 | struct ipr_resource_entry *res; | |
4493 | unsigned long lock_flags = 0; | |
4494 | ssize_t len = -ENXIO; | |
4495 | ||
4496 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4497 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4498 | ||
4499 | if (res) | |
4500 | len = snprintf(buf, PAGE_SIZE, "%x\n", res->type); | |
4501 | ||
4502 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4503 | return len; | |
4504 | } | |
4505 | ||
4506 | static struct device_attribute ipr_resource_type_attr = { | |
4507 | .attr = { | |
4508 | .name = "resource_type", | |
4509 | .mode = S_IRUGO, | |
4510 | }, | |
4511 | .show = ipr_show_resource_type | |
4512 | }; | |
4513 | ||
f8ee25d7 WX |
4514 | /** |
4515 | * ipr_show_raw_mode - Show the adapter's raw mode | |
4516 | * @dev: class device struct | |
4517 | * @buf: buffer | |
4518 | * | |
4519 | * Return value: | |
4520 | * number of bytes printed to buffer | |
4521 | **/ | |
4522 | static ssize_t ipr_show_raw_mode(struct device *dev, | |
4523 | struct device_attribute *attr, char *buf) | |
4524 | { | |
4525 | struct scsi_device *sdev = to_scsi_device(dev); | |
4526 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4527 | struct ipr_resource_entry *res; | |
4528 | unsigned long lock_flags = 0; | |
4529 | ssize_t len; | |
4530 | ||
4531 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4532 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4533 | if (res) | |
4534 | len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode); | |
4535 | else | |
4536 | len = -ENXIO; | |
4537 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4538 | return len; | |
4539 | } | |
4540 | ||
4541 | /** | |
4542 | * ipr_store_raw_mode - Change the adapter's raw mode | |
4543 | * @dev: class device struct | |
4544 | * @buf: buffer | |
4545 | * | |
4546 | * Return value: | |
4547 | * number of bytes printed to buffer | |
4548 | **/ | |
4549 | static ssize_t ipr_store_raw_mode(struct device *dev, | |
4550 | struct device_attribute *attr, | |
4551 | const char *buf, size_t count) | |
4552 | { | |
4553 | struct scsi_device *sdev = to_scsi_device(dev); | |
4554 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4555 | struct ipr_resource_entry *res; | |
4556 | unsigned long lock_flags = 0; | |
4557 | ssize_t len; | |
4558 | ||
4559 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4560 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4561 | if (res) { | |
e35d7f27 | 4562 | if (ipr_is_af_dasd_device(res)) { |
f8ee25d7 WX |
4563 | res->raw_mode = simple_strtoul(buf, NULL, 10); |
4564 | len = strlen(buf); | |
4565 | if (res->sdev) | |
4566 | sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n", | |
4567 | res->raw_mode ? "enabled" : "disabled"); | |
4568 | } else | |
4569 | len = -EINVAL; | |
4570 | } else | |
4571 | len = -ENXIO; | |
4572 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4573 | return len; | |
4574 | } | |
4575 | ||
4576 | static struct device_attribute ipr_raw_mode_attr = { | |
4577 | .attr = { | |
4578 | .name = "raw_mode", | |
4579 | .mode = S_IRUGO | S_IWUSR, | |
4580 | }, | |
4581 | .show = ipr_show_raw_mode, | |
4582 | .store = ipr_store_raw_mode | |
4583 | }; | |
4584 | ||
1da177e4 LT |
4585 | static struct device_attribute *ipr_dev_attrs[] = { |
4586 | &ipr_adapter_handle_attr, | |
3e7ebdfa | 4587 | &ipr_resource_path_attr, |
46d74563 | 4588 | &ipr_device_id_attr, |
75576bb9 | 4589 | &ipr_resource_type_attr, |
f8ee25d7 | 4590 | &ipr_raw_mode_attr, |
1da177e4 LT |
4591 | NULL, |
4592 | }; | |
4593 | ||
4594 | /** | |
4595 | * ipr_biosparam - Return the HSC mapping | |
4596 | * @sdev: scsi device struct | |
4597 | * @block_device: block device pointer | |
4598 | * @capacity: capacity of the device | |
4599 | * @parm: Array containing returned HSC values. | |
4600 | * | |
4601 | * This function generates the HSC parms that fdisk uses. | |
4602 | * We want to make sure we return something that places partitions | |
4603 | * on 4k boundaries for best performance with the IOA. | |
4604 | * | |
4605 | * Return value: | |
4606 | * 0 on success | |
4607 | **/ | |
4608 | static int ipr_biosparam(struct scsi_device *sdev, | |
4609 | struct block_device *block_device, | |
4610 | sector_t capacity, int *parm) | |
4611 | { | |
4612 | int heads, sectors; | |
4613 | sector_t cylinders; | |
4614 | ||
4615 | heads = 128; | |
4616 | sectors = 32; | |
4617 | ||
4618 | cylinders = capacity; | |
4619 | sector_div(cylinders, (128 * 32)); | |
4620 | ||
4621 | /* return result */ | |
4622 | parm[0] = heads; | |
4623 | parm[1] = sectors; | |
4624 | parm[2] = cylinders; | |
4625 | ||
4626 | return 0; | |
4627 | } | |
4628 | ||
35a39691 BK |
4629 | /** |
4630 | * ipr_find_starget - Find target based on bus/target. | |
4631 | * @starget: scsi target struct | |
4632 | * | |
4633 | * Return value: | |
4634 | * resource entry pointer if found / NULL if not found | |
4635 | **/ | |
4636 | static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) | |
4637 | { | |
4638 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
4639 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
4640 | struct ipr_resource_entry *res; | |
4641 | ||
4642 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3e7ebdfa | 4643 | if ((res->bus == starget->channel) && |
0ee1d714 | 4644 | (res->target == starget->id)) { |
35a39691 BK |
4645 | return res; |
4646 | } | |
4647 | } | |
4648 | ||
4649 | return NULL; | |
4650 | } | |
4651 | ||
4652 | static struct ata_port_info sata_port_info; | |
4653 | ||
4654 | /** | |
4655 | * ipr_target_alloc - Prepare for commands to a SCSI target | |
4656 | * @starget: scsi target struct | |
4657 | * | |
4658 | * If the device is a SATA device, this function allocates an | |
4659 | * ATA port with libata, else it does nothing. | |
4660 | * | |
4661 | * Return value: | |
4662 | * 0 on success / non-0 on failure | |
4663 | **/ | |
4664 | static int ipr_target_alloc(struct scsi_target *starget) | |
4665 | { | |
4666 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
4667 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
4668 | struct ipr_sata_port *sata_port; | |
4669 | struct ata_port *ap; | |
4670 | struct ipr_resource_entry *res; | |
4671 | unsigned long lock_flags; | |
4672 | ||
4673 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4674 | res = ipr_find_starget(starget); | |
4675 | starget->hostdata = NULL; | |
4676 | ||
4677 | if (res && ipr_is_gata(res)) { | |
4678 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4679 | sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); | |
4680 | if (!sata_port) | |
4681 | return -ENOMEM; | |
4682 | ||
4683 | ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); | |
4684 | if (ap) { | |
4685 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4686 | sata_port->ioa_cfg = ioa_cfg; | |
4687 | sata_port->ap = ap; | |
4688 | sata_port->res = res; | |
4689 | ||
4690 | res->sata_port = sata_port; | |
4691 | ap->private_data = sata_port; | |
4692 | starget->hostdata = sata_port; | |
4693 | } else { | |
4694 | kfree(sata_port); | |
4695 | return -ENOMEM; | |
4696 | } | |
4697 | } | |
4698 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4699 | ||
4700 | return 0; | |
4701 | } | |
4702 | ||
4703 | /** | |
4704 | * ipr_target_destroy - Destroy a SCSI target | |
4705 | * @starget: scsi target struct | |
4706 | * | |
4707 | * If the device was a SATA device, this function frees the libata | |
4708 | * ATA port, else it does nothing. | |
4709 | * | |
4710 | **/ | |
4711 | static void ipr_target_destroy(struct scsi_target *starget) | |
4712 | { | |
4713 | struct ipr_sata_port *sata_port = starget->hostdata; | |
3e7ebdfa WB |
4714 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); |
4715 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
4716 | ||
4717 | if (ioa_cfg->sis64) { | |
0ee1d714 BK |
4718 | if (!ipr_find_starget(starget)) { |
4719 | if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) | |
4720 | clear_bit(starget->id, ioa_cfg->array_ids); | |
4721 | else if (starget->channel == IPR_VSET_VIRTUAL_BUS) | |
4722 | clear_bit(starget->id, ioa_cfg->vset_ids); | |
4723 | else if (starget->channel == 0) | |
4724 | clear_bit(starget->id, ioa_cfg->target_ids); | |
4725 | } | |
3e7ebdfa | 4726 | } |
35a39691 BK |
4727 | |
4728 | if (sata_port) { | |
4729 | starget->hostdata = NULL; | |
4730 | ata_sas_port_destroy(sata_port->ap); | |
4731 | kfree(sata_port); | |
4732 | } | |
4733 | } | |
4734 | ||
4735 | /** | |
4736 | * ipr_find_sdev - Find device based on bus/target/lun. | |
4737 | * @sdev: scsi device struct | |
4738 | * | |
4739 | * Return value: | |
4740 | * resource entry pointer if found / NULL if not found | |
4741 | **/ | |
4742 | static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) | |
4743 | { | |
4744 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
4745 | struct ipr_resource_entry *res; | |
4746 | ||
4747 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3e7ebdfa WB |
4748 | if ((res->bus == sdev->channel) && |
4749 | (res->target == sdev->id) && | |
4750 | (res->lun == sdev->lun)) | |
35a39691 BK |
4751 | return res; |
4752 | } | |
4753 | ||
4754 | return NULL; | |
4755 | } | |
4756 | ||
1da177e4 LT |
4757 | /** |
4758 | * ipr_slave_destroy - Unconfigure a SCSI device | |
4759 | * @sdev: scsi device struct | |
4760 | * | |
4761 | * Return value: | |
4762 | * nothing | |
4763 | **/ | |
4764 | static void ipr_slave_destroy(struct scsi_device *sdev) | |
4765 | { | |
4766 | struct ipr_resource_entry *res; | |
4767 | struct ipr_ioa_cfg *ioa_cfg; | |
4768 | unsigned long lock_flags = 0; | |
4769 | ||
4770 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
4771 | ||
4772 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4773 | res = (struct ipr_resource_entry *) sdev->hostdata; | |
4774 | if (res) { | |
35a39691 | 4775 | if (res->sata_port) |
3e4ec344 | 4776 | res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; |
1da177e4 LT |
4777 | sdev->hostdata = NULL; |
4778 | res->sdev = NULL; | |
35a39691 | 4779 | res->sata_port = NULL; |
1da177e4 LT |
4780 | } |
4781 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4782 | } | |
4783 | ||
4784 | /** | |
4785 | * ipr_slave_configure - Configure a SCSI device | |
4786 | * @sdev: scsi device struct | |
4787 | * | |
4788 | * This function configures the specified scsi device. | |
4789 | * | |
4790 | * Return value: | |
4791 | * 0 on success | |
4792 | **/ | |
4793 | static int ipr_slave_configure(struct scsi_device *sdev) | |
4794 | { | |
4795 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
4796 | struct ipr_resource_entry *res; | |
dd406ef8 | 4797 | struct ata_port *ap = NULL; |
1da177e4 | 4798 | unsigned long lock_flags = 0; |
3e7ebdfa | 4799 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
1da177e4 LT |
4800 | |
4801 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4802 | res = sdev->hostdata; | |
4803 | if (res) { | |
4804 | if (ipr_is_af_dasd_device(res)) | |
4805 | sdev->type = TYPE_RAID; | |
0726ce26 | 4806 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
1da177e4 | 4807 | sdev->scsi_level = 4; |
0726ce26 BK |
4808 | sdev->no_uld_attach = 1; |
4809 | } | |
1da177e4 | 4810 | if (ipr_is_vset_device(res)) { |
60654e25 | 4811 | sdev->scsi_level = SCSI_SPC_3; |
242f9dcb JA |
4812 | blk_queue_rq_timeout(sdev->request_queue, |
4813 | IPR_VSET_RW_TIMEOUT); | |
086fa5ff | 4814 | blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); |
1da177e4 | 4815 | } |
dd406ef8 BK |
4816 | if (ipr_is_gata(res) && res->sata_port) |
4817 | ap = res->sata_port->ap; | |
4818 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4819 | ||
4820 | if (ap) { | |
db5ed4df | 4821 | scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN); |
dd406ef8 | 4822 | ata_sas_slave_configure(sdev, ap); |
c8b09f6f CH |
4823 | } |
4824 | ||
3e7ebdfa WB |
4825 | if (ioa_cfg->sis64) |
4826 | sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", | |
b3b3b407 BK |
4827 | ipr_format_res_path(ioa_cfg, |
4828 | res->res_path, buffer, sizeof(buffer))); | |
dd406ef8 | 4829 | return 0; |
1da177e4 LT |
4830 | } |
4831 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4832 | return 0; | |
4833 | } | |
4834 | ||
35a39691 BK |
4835 | /** |
4836 | * ipr_ata_slave_alloc - Prepare for commands to a SATA device | |
4837 | * @sdev: scsi device struct | |
4838 | * | |
4839 | * This function initializes an ATA port so that future commands | |
4840 | * sent through queuecommand will work. | |
4841 | * | |
4842 | * Return value: | |
4843 | * 0 on success | |
4844 | **/ | |
4845 | static int ipr_ata_slave_alloc(struct scsi_device *sdev) | |
4846 | { | |
4847 | struct ipr_sata_port *sata_port = NULL; | |
4848 | int rc = -ENXIO; | |
4849 | ||
4850 | ENTER; | |
4851 | if (sdev->sdev_target) | |
4852 | sata_port = sdev->sdev_target->hostdata; | |
b2024459 | 4853 | if (sata_port) { |
35a39691 | 4854 | rc = ata_sas_port_init(sata_port->ap); |
b2024459 DW |
4855 | if (rc == 0) |
4856 | rc = ata_sas_sync_probe(sata_port->ap); | |
4857 | } | |
4858 | ||
35a39691 BK |
4859 | if (rc) |
4860 | ipr_slave_destroy(sdev); | |
4861 | ||
4862 | LEAVE; | |
4863 | return rc; | |
4864 | } | |
4865 | ||
1da177e4 LT |
4866 | /** |
4867 | * ipr_slave_alloc - Prepare for commands to a device. | |
4868 | * @sdev: scsi device struct | |
4869 | * | |
4870 | * This function saves a pointer to the resource entry | |
4871 | * in the scsi device struct if the device exists. We | |
4872 | * can then use this pointer in ipr_queuecommand when | |
4873 | * handling new commands. | |
4874 | * | |
4875 | * Return value: | |
692aebfc | 4876 | * 0 on success / -ENXIO if device does not exist |
1da177e4 LT |
4877 | **/ |
4878 | static int ipr_slave_alloc(struct scsi_device *sdev) | |
4879 | { | |
4880 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
4881 | struct ipr_resource_entry *res; | |
4882 | unsigned long lock_flags; | |
692aebfc | 4883 | int rc = -ENXIO; |
1da177e4 LT |
4884 | |
4885 | sdev->hostdata = NULL; | |
4886 | ||
4887 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4888 | ||
35a39691 BK |
4889 | res = ipr_find_sdev(sdev); |
4890 | if (res) { | |
4891 | res->sdev = sdev; | |
4892 | res->add_to_ml = 0; | |
4893 | res->in_erp = 0; | |
4894 | sdev->hostdata = res; | |
4895 | if (!ipr_is_naca_model(res)) | |
4896 | res->needs_sync_complete = 1; | |
4897 | rc = 0; | |
4898 | if (ipr_is_gata(res)) { | |
4899 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4900 | return ipr_ata_slave_alloc(sdev); | |
1da177e4 LT |
4901 | } |
4902 | } | |
4903 | ||
4904 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4905 | ||
692aebfc | 4906 | return rc; |
1da177e4 LT |
4907 | } |
4908 | ||
6cdb0817 BK |
4909 | /** |
4910 | * ipr_match_lun - Match function for specified LUN | |
4911 | * @ipr_cmd: ipr command struct | |
4912 | * @device: device to match (sdev) | |
4913 | * | |
4914 | * Returns: | |
4915 | * 1 if command matches sdev / 0 if command does not match sdev | |
4916 | **/ | |
4917 | static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device) | |
4918 | { | |
4919 | if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device) | |
4920 | return 1; | |
4921 | return 0; | |
4922 | } | |
4923 | ||
4924 | /** | |
4925 | * ipr_wait_for_ops - Wait for matching commands to complete | |
4926 | * @ipr_cmd: ipr command struct | |
4927 | * @device: device to match (sdev) | |
4928 | * @match: match function to use | |
4929 | * | |
4930 | * Returns: | |
4931 | * SUCCESS / FAILED | |
4932 | **/ | |
4933 | static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device, | |
4934 | int (*match)(struct ipr_cmnd *, void *)) | |
4935 | { | |
4936 | struct ipr_cmnd *ipr_cmd; | |
4937 | int wait; | |
4938 | unsigned long flags; | |
4939 | struct ipr_hrr_queue *hrrq; | |
4940 | signed long timeout = IPR_ABORT_TASK_TIMEOUT; | |
4941 | DECLARE_COMPLETION_ONSTACK(comp); | |
4942 | ||
4943 | ENTER; | |
4944 | do { | |
4945 | wait = 0; | |
4946 | ||
4947 | for_each_hrrq(hrrq, ioa_cfg) { | |
4948 | spin_lock_irqsave(hrrq->lock, flags); | |
4949 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { | |
4950 | if (match(ipr_cmd, device)) { | |
4951 | ipr_cmd->eh_comp = ∁ | |
4952 | wait++; | |
4953 | } | |
4954 | } | |
4955 | spin_unlock_irqrestore(hrrq->lock, flags); | |
4956 | } | |
4957 | ||
4958 | if (wait) { | |
4959 | timeout = wait_for_completion_timeout(&comp, timeout); | |
4960 | ||
4961 | if (!timeout) { | |
4962 | wait = 0; | |
4963 | ||
4964 | for_each_hrrq(hrrq, ioa_cfg) { | |
4965 | spin_lock_irqsave(hrrq->lock, flags); | |
4966 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { | |
4967 | if (match(ipr_cmd, device)) { | |
4968 | ipr_cmd->eh_comp = NULL; | |
4969 | wait++; | |
4970 | } | |
4971 | } | |
4972 | spin_unlock_irqrestore(hrrq->lock, flags); | |
4973 | } | |
4974 | ||
4975 | if (wait) | |
4976 | dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n"); | |
4977 | LEAVE; | |
4978 | return wait ? FAILED : SUCCESS; | |
4979 | } | |
4980 | } | |
4981 | } while (wait); | |
4982 | ||
4983 | LEAVE; | |
4984 | return SUCCESS; | |
4985 | } | |
4986 | ||
70233ac5 | 4987 | static int ipr_eh_host_reset(struct scsi_cmnd *cmd) |
1da177e4 LT |
4988 | { |
4989 | struct ipr_ioa_cfg *ioa_cfg; | |
70233ac5 | 4990 | unsigned long lock_flags = 0; |
4991 | int rc = SUCCESS; | |
1da177e4 LT |
4992 | |
4993 | ENTER; | |
70233ac5 | 4994 | ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; |
4995 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
1da177e4 | 4996 | |
96b04db9 | 4997 | if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
70233ac5 | 4998 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); |
a92fa25c KSS |
4999 | dev_err(&ioa_cfg->pdev->dev, |
5000 | "Adapter being reset as a result of error recovery.\n"); | |
1da177e4 | 5001 | |
a92fa25c KSS |
5002 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
5003 | ioa_cfg->sdt_state = GET_DUMP; | |
5004 | } | |
1da177e4 | 5005 | |
70233ac5 | 5006 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
5007 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5008 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
df0ae249 | 5009 | |
70233ac5 | 5010 | /* If we got hit with a host reset while we were already resetting |
5011 | the adapter for some reason, and the reset failed. */ | |
5012 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { | |
5013 | ipr_trace; | |
5014 | rc = FAILED; | |
5015 | } | |
df0ae249 | 5016 | |
70233ac5 | 5017 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
5018 | LEAVE; | |
df0ae249 JG |
5019 | return rc; |
5020 | } | |
5021 | ||
c6513096 BK |
5022 | /** |
5023 | * ipr_device_reset - Reset the device | |
5024 | * @ioa_cfg: ioa config struct | |
5025 | * @res: resource entry struct | |
5026 | * | |
5027 | * This function issues a device reset to the affected device. | |
5028 | * If the device is a SCSI device, a LUN reset will be sent | |
5029 | * to the device first. If that does not work, a target reset | |
35a39691 BK |
5030 | * will be sent. If the device is a SATA device, a PHY reset will |
5031 | * be sent. | |
c6513096 BK |
5032 | * |
5033 | * Return value: | |
5034 | * 0 on success / non-zero on failure | |
5035 | **/ | |
5036 | static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, | |
5037 | struct ipr_resource_entry *res) | |
5038 | { | |
5039 | struct ipr_cmnd *ipr_cmd; | |
5040 | struct ipr_ioarcb *ioarcb; | |
5041 | struct ipr_cmd_pkt *cmd_pkt; | |
35a39691 | 5042 | struct ipr_ioarcb_ata_regs *regs; |
c6513096 BK |
5043 | u32 ioasc; |
5044 | ||
5045 | ENTER; | |
5046 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
5047 | ioarcb = &ipr_cmd->ioarcb; | |
5048 | cmd_pkt = &ioarcb->cmd_pkt; | |
a32c055f WB |
5049 | |
5050 | if (ipr_cmd->ioa_cfg->sis64) { | |
5051 | regs = &ipr_cmd->i.ata_ioadl.regs; | |
5052 | ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); | |
5053 | } else | |
5054 | regs = &ioarcb->u.add_data.u.regs; | |
c6513096 | 5055 | |
3e7ebdfa | 5056 | ioarcb->res_handle = res->res_handle; |
c6513096 BK |
5057 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
5058 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
35a39691 BK |
5059 | if (ipr_is_gata(res)) { |
5060 | cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; | |
a32c055f | 5061 | ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); |
35a39691 BK |
5062 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; |
5063 | } | |
c6513096 BK |
5064 | |
5065 | ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
96d21f00 | 5066 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
05a6538a | 5067 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
96d21f00 WB |
5068 | if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) { |
5069 | if (ipr_cmd->ioa_cfg->sis64) | |
5070 | memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, | |
5071 | sizeof(struct ipr_ioasa_gata)); | |
5072 | else | |
5073 | memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, | |
5074 | sizeof(struct ipr_ioasa_gata)); | |
5075 | } | |
c6513096 BK |
5076 | |
5077 | LEAVE; | |
203fa3fe | 5078 | return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0; |
c6513096 BK |
5079 | } |
5080 | ||
35a39691 BK |
5081 | /** |
5082 | * ipr_sata_reset - Reset the SATA port | |
cc0680a5 | 5083 | * @link: SATA link to reset |
35a39691 BK |
5084 | * @classes: class of the attached device |
5085 | * | |
cc0680a5 | 5086 | * This function issues a SATA phy reset to the affected ATA link. |
35a39691 BK |
5087 | * |
5088 | * Return value: | |
5089 | * 0 on success / non-zero on failure | |
5090 | **/ | |
cc0680a5 | 5091 | static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, |
120bda35 | 5092 | unsigned long deadline) |
35a39691 | 5093 | { |
cc0680a5 | 5094 | struct ipr_sata_port *sata_port = link->ap->private_data; |
35a39691 BK |
5095 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; |
5096 | struct ipr_resource_entry *res; | |
5097 | unsigned long lock_flags = 0; | |
5098 | int rc = -ENXIO; | |
5099 | ||
5100 | ENTER; | |
5101 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
203fa3fe | 5102 | while (ioa_cfg->in_reset_reload) { |
73d98ff0 BK |
5103 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
5104 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5105 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
5106 | } | |
5107 | ||
35a39691 BK |
5108 | res = sata_port->res; |
5109 | if (res) { | |
5110 | rc = ipr_device_reset(ioa_cfg, res); | |
3e7ebdfa | 5111 | *classes = res->ata_class; |
35a39691 BK |
5112 | } |
5113 | ||
5114 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5115 | LEAVE; | |
5116 | return rc; | |
5117 | } | |
5118 | ||
1da177e4 LT |
5119 | /** |
5120 | * ipr_eh_dev_reset - Reset the device | |
5121 | * @scsi_cmd: scsi command struct | |
5122 | * | |
5123 | * This function issues a device reset to the affected device. | |
5124 | * A LUN reset will be sent to the device first. If that does | |
5125 | * not work, a target reset will be sent. | |
5126 | * | |
5127 | * Return value: | |
5128 | * SUCCESS / FAILED | |
5129 | **/ | |
203fa3fe | 5130 | static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd) |
1da177e4 LT |
5131 | { |
5132 | struct ipr_cmnd *ipr_cmd; | |
5133 | struct ipr_ioa_cfg *ioa_cfg; | |
5134 | struct ipr_resource_entry *res; | |
35a39691 BK |
5135 | struct ata_port *ap; |
5136 | int rc = 0; | |
05a6538a | 5137 | struct ipr_hrr_queue *hrrq; |
1da177e4 LT |
5138 | |
5139 | ENTER; | |
5140 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
5141 | res = scsi_cmd->device->hostdata; | |
5142 | ||
eeb88307 | 5143 | if (!res) |
1da177e4 LT |
5144 | return FAILED; |
5145 | ||
5146 | /* | |
5147 | * If we are currently going through reset/reload, return failed. This will force the | |
5148 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the | |
5149 | * reset to complete | |
5150 | */ | |
5151 | if (ioa_cfg->in_reset_reload) | |
5152 | return FAILED; | |
56d6aa33 | 5153 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
1da177e4 LT |
5154 | return FAILED; |
5155 | ||
05a6538a | 5156 | for_each_hrrq(hrrq, ioa_cfg) { |
56d6aa33 | 5157 | spin_lock(&hrrq->_lock); |
05a6538a | 5158 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { |
5159 | if (ipr_cmd->ioarcb.res_handle == res->res_handle) { | |
5160 | if (ipr_cmd->scsi_cmd) | |
5161 | ipr_cmd->done = ipr_scsi_eh_done; | |
5162 | if (ipr_cmd->qc) | |
5163 | ipr_cmd->done = ipr_sata_eh_done; | |
5164 | if (ipr_cmd->qc && | |
5165 | !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { | |
5166 | ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; | |
5167 | ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; | |
5168 | } | |
7402ecef | 5169 | } |
1da177e4 | 5170 | } |
56d6aa33 | 5171 | spin_unlock(&hrrq->_lock); |
1da177e4 | 5172 | } |
1da177e4 | 5173 | res->resetting_device = 1; |
fb3ed3cb | 5174 | scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); |
35a39691 BK |
5175 | |
5176 | if (ipr_is_gata(res) && res->sata_port) { | |
5177 | ap = res->sata_port->ap; | |
5178 | spin_unlock_irq(scsi_cmd->device->host->host_lock); | |
a1efdaba | 5179 | ata_std_error_handler(ap); |
35a39691 | 5180 | spin_lock_irq(scsi_cmd->device->host->host_lock); |
5af23d26 | 5181 | |
05a6538a | 5182 | for_each_hrrq(hrrq, ioa_cfg) { |
56d6aa33 | 5183 | spin_lock(&hrrq->_lock); |
05a6538a | 5184 | list_for_each_entry(ipr_cmd, |
5185 | &hrrq->hrrq_pending_q, queue) { | |
5186 | if (ipr_cmd->ioarcb.res_handle == | |
5187 | res->res_handle) { | |
5188 | rc = -EIO; | |
5189 | break; | |
5190 | } | |
5af23d26 | 5191 | } |
56d6aa33 | 5192 | spin_unlock(&hrrq->_lock); |
5af23d26 | 5193 | } |
35a39691 BK |
5194 | } else |
5195 | rc = ipr_device_reset(ioa_cfg, res); | |
1da177e4 | 5196 | res->resetting_device = 0; |
0b1f8d44 | 5197 | res->reset_occurred = 1; |
1da177e4 | 5198 | |
1da177e4 | 5199 | LEAVE; |
203fa3fe | 5200 | return rc ? FAILED : SUCCESS; |
1da177e4 LT |
5201 | } |
5202 | ||
203fa3fe | 5203 | static int ipr_eh_dev_reset(struct scsi_cmnd *cmd) |
94d0e7b8 JG |
5204 | { |
5205 | int rc; | |
6cdb0817 BK |
5206 | struct ipr_ioa_cfg *ioa_cfg; |
5207 | ||
5208 | ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; | |
94d0e7b8 JG |
5209 | |
5210 | spin_lock_irq(cmd->device->host->host_lock); | |
5211 | rc = __ipr_eh_dev_reset(cmd); | |
5212 | spin_unlock_irq(cmd->device->host->host_lock); | |
5213 | ||
6cdb0817 BK |
5214 | if (rc == SUCCESS) |
5215 | rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun); | |
5216 | ||
94d0e7b8 JG |
5217 | return rc; |
5218 | } | |
5219 | ||
1da177e4 LT |
5220 | /** |
5221 | * ipr_bus_reset_done - Op done function for bus reset. | |
5222 | * @ipr_cmd: ipr command struct | |
5223 | * | |
5224 | * This function is the op done function for a bus reset | |
5225 | * | |
5226 | * Return value: | |
5227 | * none | |
5228 | **/ | |
5229 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) | |
5230 | { | |
5231 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5232 | struct ipr_resource_entry *res; | |
5233 | ||
5234 | ENTER; | |
3e7ebdfa WB |
5235 | if (!ioa_cfg->sis64) |
5236 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
5237 | if (res->res_handle == ipr_cmd->ioarcb.res_handle) { | |
5238 | scsi_report_bus_reset(ioa_cfg->host, res->bus); | |
5239 | break; | |
5240 | } | |
1da177e4 | 5241 | } |
1da177e4 LT |
5242 | |
5243 | /* | |
5244 | * If abort has not completed, indicate the reset has, else call the | |
5245 | * abort's done function to wake the sleeping eh thread | |
5246 | */ | |
5247 | if (ipr_cmd->sibling->sibling) | |
5248 | ipr_cmd->sibling->sibling = NULL; | |
5249 | else | |
5250 | ipr_cmd->sibling->done(ipr_cmd->sibling); | |
5251 | ||
05a6538a | 5252 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
1da177e4 LT |
5253 | LEAVE; |
5254 | } | |
5255 | ||
5256 | /** | |
5257 | * ipr_abort_timeout - An abort task has timed out | |
5258 | * @ipr_cmd: ipr command struct | |
5259 | * | |
5260 | * This function handles when an abort task times out. If this | |
5261 | * happens we issue a bus reset since we have resources tied | |
5262 | * up that must be freed before returning to the midlayer. | |
5263 | * | |
5264 | * Return value: | |
5265 | * none | |
5266 | **/ | |
5267 | static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) | |
5268 | { | |
5269 | struct ipr_cmnd *reset_cmd; | |
5270 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5271 | struct ipr_cmd_pkt *cmd_pkt; | |
5272 | unsigned long lock_flags = 0; | |
5273 | ||
5274 | ENTER; | |
5275 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
5276 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { | |
5277 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5278 | return; | |
5279 | } | |
5280 | ||
fb3ed3cb | 5281 | sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); |
1da177e4 LT |
5282 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
5283 | ipr_cmd->sibling = reset_cmd; | |
5284 | reset_cmd->sibling = ipr_cmd; | |
5285 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; | |
5286 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; | |
5287 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
5288 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
5289 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; | |
5290 | ||
5291 | ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
5292 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5293 | LEAVE; | |
5294 | } | |
5295 | ||
5296 | /** | |
5297 | * ipr_cancel_op - Cancel specified op | |
5298 | * @scsi_cmd: scsi command struct | |
5299 | * | |
5300 | * This function cancels specified op. | |
5301 | * | |
5302 | * Return value: | |
5303 | * SUCCESS / FAILED | |
5304 | **/ | |
203fa3fe | 5305 | static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd) |
1da177e4 LT |
5306 | { |
5307 | struct ipr_cmnd *ipr_cmd; | |
5308 | struct ipr_ioa_cfg *ioa_cfg; | |
5309 | struct ipr_resource_entry *res; | |
5310 | struct ipr_cmd_pkt *cmd_pkt; | |
a92fa25c | 5311 | u32 ioasc, int_reg; |
1da177e4 | 5312 | int op_found = 0; |
05a6538a | 5313 | struct ipr_hrr_queue *hrrq; |
1da177e4 LT |
5314 | |
5315 | ENTER; | |
5316 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
5317 | res = scsi_cmd->device->hostdata; | |
5318 | ||
8fa728a2 JG |
5319 | /* If we are currently going through reset/reload, return failed. |
5320 | * This will force the mid-layer to call ipr_eh_host_reset, | |
5321 | * which will then go to sleep and wait for the reset to complete | |
5322 | */ | |
56d6aa33 | 5323 | if (ioa_cfg->in_reset_reload || |
5324 | ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) | |
8fa728a2 | 5325 | return FAILED; |
a92fa25c KSS |
5326 | if (!res) |
5327 | return FAILED; | |
5328 | ||
5329 | /* | |
5330 | * If we are aborting a timed out op, chances are that the timeout was caused | |
5331 | * by a still not detected EEH error. In such cases, reading a register will | |
5332 | * trigger the EEH recovery infrastructure. | |
5333 | */ | |
5334 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
5335 | ||
5336 | if (!ipr_is_gscsi(res)) | |
1da177e4 LT |
5337 | return FAILED; |
5338 | ||
05a6538a | 5339 | for_each_hrrq(hrrq, ioa_cfg) { |
56d6aa33 | 5340 | spin_lock(&hrrq->_lock); |
05a6538a | 5341 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { |
5342 | if (ipr_cmd->scsi_cmd == scsi_cmd) { | |
5343 | ipr_cmd->done = ipr_scsi_eh_done; | |
5344 | op_found = 1; | |
5345 | break; | |
5346 | } | |
1da177e4 | 5347 | } |
56d6aa33 | 5348 | spin_unlock(&hrrq->_lock); |
1da177e4 LT |
5349 | } |
5350 | ||
5351 | if (!op_found) | |
5352 | return SUCCESS; | |
5353 | ||
5354 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3e7ebdfa | 5355 | ipr_cmd->ioarcb.res_handle = res->res_handle; |
1da177e4 LT |
5356 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
5357 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
5358 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
5359 | ipr_cmd->u.sdev = scsi_cmd->device; | |
5360 | ||
fb3ed3cb BK |
5361 | scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", |
5362 | scsi_cmd->cmnd[0]); | |
1da177e4 | 5363 | ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); |
96d21f00 | 5364 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
5365 | |
5366 | /* | |
5367 | * If the abort task timed out and we sent a bus reset, we will get | |
5368 | * one the following responses to the abort | |
5369 | */ | |
5370 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { | |
5371 | ioasc = 0; | |
5372 | ipr_trace; | |
5373 | } | |
5374 | ||
c4ee22a3 | 5375 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
ee0a90fa BK |
5376 | if (!ipr_is_naca_model(res)) |
5377 | res->needs_sync_complete = 1; | |
1da177e4 LT |
5378 | |
5379 | LEAVE; | |
203fa3fe | 5380 | return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS; |
1da177e4 LT |
5381 | } |
5382 | ||
5383 | /** | |
5384 | * ipr_eh_abort - Abort a single op | |
5385 | * @scsi_cmd: scsi command struct | |
5386 | * | |
5387 | * Return value: | |
f688f96d BK |
5388 | * 0 if scan in progress / 1 if scan is complete |
5389 | **/ | |
5390 | static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time) | |
5391 | { | |
5392 | unsigned long lock_flags; | |
5393 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
5394 | int rc = 0; | |
5395 | ||
5396 | spin_lock_irqsave(shost->host_lock, lock_flags); | |
5397 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done) | |
5398 | rc = 1; | |
5399 | if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2)) | |
5400 | rc = 1; | |
5401 | spin_unlock_irqrestore(shost->host_lock, lock_flags); | |
5402 | return rc; | |
5403 | } | |
5404 | ||
5405 | /** | |
5406 | * ipr_eh_host_reset - Reset the host adapter | |
5407 | * @scsi_cmd: scsi command struct | |
5408 | * | |
5409 | * Return value: | |
1da177e4 LT |
5410 | * SUCCESS / FAILED |
5411 | **/ | |
203fa3fe | 5412 | static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd) |
1da177e4 | 5413 | { |
8fa728a2 JG |
5414 | unsigned long flags; |
5415 | int rc; | |
6cdb0817 | 5416 | struct ipr_ioa_cfg *ioa_cfg; |
1da177e4 LT |
5417 | |
5418 | ENTER; | |
1da177e4 | 5419 | |
6cdb0817 BK |
5420 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; |
5421 | ||
8fa728a2 JG |
5422 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
5423 | rc = ipr_cancel_op(scsi_cmd); | |
5424 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); | |
1da177e4 | 5425 | |
6cdb0817 BK |
5426 | if (rc == SUCCESS) |
5427 | rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun); | |
1da177e4 | 5428 | LEAVE; |
8fa728a2 | 5429 | return rc; |
1da177e4 LT |
5430 | } |
5431 | ||
5432 | /** | |
5433 | * ipr_handle_other_interrupt - Handle "other" interrupts | |
5434 | * @ioa_cfg: ioa config struct | |
634651fa | 5435 | * @int_reg: interrupt register |
1da177e4 LT |
5436 | * |
5437 | * Return value: | |
5438 | * IRQ_NONE / IRQ_HANDLED | |
5439 | **/ | |
634651fa | 5440 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, |
630ad831 | 5441 | u32 int_reg) |
1da177e4 LT |
5442 | { |
5443 | irqreturn_t rc = IRQ_HANDLED; | |
7dacb64f | 5444 | u32 int_mask_reg; |
56d6aa33 | 5445 | |
7dacb64f WB |
5446 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); |
5447 | int_reg &= ~int_mask_reg; | |
5448 | ||
5449 | /* If an interrupt on the adapter did not occur, ignore it. | |
5450 | * Or in the case of SIS 64, check for a stage change interrupt. | |
5451 | */ | |
5452 | if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) { | |
5453 | if (ioa_cfg->sis64) { | |
5454 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
5455 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
5456 | if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { | |
5457 | ||
5458 | /* clear stage change */ | |
5459 | writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); | |
5460 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
5461 | list_del(&ioa_cfg->reset_cmd->queue); | |
5462 | del_timer(&ioa_cfg->reset_cmd->timer); | |
5463 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); | |
5464 | return IRQ_HANDLED; | |
5465 | } | |
5466 | } | |
5467 | ||
5468 | return IRQ_NONE; | |
5469 | } | |
1da177e4 LT |
5470 | |
5471 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
5472 | /* Mask the interrupt */ | |
5473 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); | |
1da177e4 LT |
5474 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
5475 | ||
5476 | list_del(&ioa_cfg->reset_cmd->queue); | |
5477 | del_timer(&ioa_cfg->reset_cmd->timer); | |
5478 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); | |
7dacb64f | 5479 | } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) { |
7dd21308 BK |
5480 | if (ioa_cfg->clear_isr) { |
5481 | if (ipr_debug && printk_ratelimit()) | |
5482 | dev_err(&ioa_cfg->pdev->dev, | |
5483 | "Spurious interrupt detected. 0x%08X\n", int_reg); | |
5484 | writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); | |
5485 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); | |
5486 | return IRQ_NONE; | |
5487 | } | |
1da177e4 LT |
5488 | } else { |
5489 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) | |
5490 | ioa_cfg->ioa_unit_checked = 1; | |
05a6538a | 5491 | else if (int_reg & IPR_PCII_NO_HOST_RRQ) |
5492 | dev_err(&ioa_cfg->pdev->dev, | |
5493 | "No Host RRQ. 0x%08X\n", int_reg); | |
1da177e4 LT |
5494 | else |
5495 | dev_err(&ioa_cfg->pdev->dev, | |
5496 | "Permanent IOA failure. 0x%08X\n", int_reg); | |
5497 | ||
5498 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
5499 | ioa_cfg->sdt_state = GET_DUMP; | |
5500 | ||
5501 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
5502 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
5503 | } | |
56d6aa33 | 5504 | |
1da177e4 LT |
5505 | return rc; |
5506 | } | |
5507 | ||
3feeb89d WB |
5508 | /** |
5509 | * ipr_isr_eh - Interrupt service routine error handler | |
5510 | * @ioa_cfg: ioa config struct | |
5511 | * @msg: message to log | |
5512 | * | |
5513 | * Return value: | |
5514 | * none | |
5515 | **/ | |
05a6538a | 5516 | static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number) |
3feeb89d WB |
5517 | { |
5518 | ioa_cfg->errors_logged++; | |
05a6538a | 5519 | dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number); |
3feeb89d WB |
5520 | |
5521 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
5522 | ioa_cfg->sdt_state = GET_DUMP; | |
5523 | ||
5524 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
5525 | } | |
5526 | ||
b53d124a | 5527 | static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget, |
05a6538a | 5528 | struct list_head *doneq) |
5529 | { | |
5530 | u32 ioasc; | |
5531 | u16 cmd_index; | |
5532 | struct ipr_cmnd *ipr_cmd; | |
5533 | struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg; | |
5534 | int num_hrrq = 0; | |
5535 | ||
5536 | /* If interrupts are disabled, ignore the interrupt */ | |
56d6aa33 | 5537 | if (!hrr_queue->allow_interrupts) |
05a6538a | 5538 | return 0; |
5539 | ||
5540 | while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == | |
5541 | hrr_queue->toggle_bit) { | |
5542 | ||
5543 | cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) & | |
5544 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> | |
5545 | IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; | |
5546 | ||
5547 | if (unlikely(cmd_index > hrr_queue->max_cmd_id || | |
5548 | cmd_index < hrr_queue->min_cmd_id)) { | |
5549 | ipr_isr_eh(ioa_cfg, | |
5550 | "Invalid response handle from IOA: ", | |
5551 | cmd_index); | |
5552 | break; | |
5553 | } | |
5554 | ||
5555 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; | |
5556 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); | |
5557 | ||
5558 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); | |
5559 | ||
5560 | list_move_tail(&ipr_cmd->queue, doneq); | |
5561 | ||
5562 | if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) { | |
5563 | hrr_queue->hrrq_curr++; | |
5564 | } else { | |
5565 | hrr_queue->hrrq_curr = hrr_queue->hrrq_start; | |
5566 | hrr_queue->toggle_bit ^= 1u; | |
5567 | } | |
5568 | num_hrrq++; | |
b53d124a | 5569 | if (budget > 0 && num_hrrq >= budget) |
5570 | break; | |
05a6538a | 5571 | } |
b53d124a | 5572 | |
05a6538a | 5573 | return num_hrrq; |
5574 | } | |
b53d124a | 5575 | |
511cbce2 | 5576 | static int ipr_iopoll(struct irq_poll *iop, int budget) |
b53d124a | 5577 | { |
5578 | struct ipr_ioa_cfg *ioa_cfg; | |
5579 | struct ipr_hrr_queue *hrrq; | |
5580 | struct ipr_cmnd *ipr_cmd, *temp; | |
5581 | unsigned long hrrq_flags; | |
5582 | int completed_ops; | |
5583 | LIST_HEAD(doneq); | |
5584 | ||
5585 | hrrq = container_of(iop, struct ipr_hrr_queue, iopoll); | |
5586 | ioa_cfg = hrrq->ioa_cfg; | |
5587 | ||
5588 | spin_lock_irqsave(hrrq->lock, hrrq_flags); | |
5589 | completed_ops = ipr_process_hrrq(hrrq, budget, &doneq); | |
5590 | ||
5591 | if (completed_ops < budget) | |
511cbce2 | 5592 | irq_poll_complete(iop); |
b53d124a | 5593 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
5594 | ||
5595 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { | |
5596 | list_del(&ipr_cmd->queue); | |
5597 | del_timer(&ipr_cmd->timer); | |
5598 | ipr_cmd->fast_done(ipr_cmd); | |
5599 | } | |
5600 | ||
5601 | return completed_ops; | |
5602 | } | |
5603 | ||
1da177e4 LT |
5604 | /** |
5605 | * ipr_isr - Interrupt service routine | |
5606 | * @irq: irq number | |
5607 | * @devp: pointer to ioa config struct | |
1da177e4 LT |
5608 | * |
5609 | * Return value: | |
5610 | * IRQ_NONE / IRQ_HANDLED | |
5611 | **/ | |
7d12e780 | 5612 | static irqreturn_t ipr_isr(int irq, void *devp) |
1da177e4 | 5613 | { |
05a6538a | 5614 | struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; |
5615 | struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; | |
56d6aa33 | 5616 | unsigned long hrrq_flags = 0; |
7dacb64f | 5617 | u32 int_reg = 0; |
3feeb89d | 5618 | int num_hrrq = 0; |
7dacb64f | 5619 | int irq_none = 0; |
172cd6e1 | 5620 | struct ipr_cmnd *ipr_cmd, *temp; |
1da177e4 | 5621 | irqreturn_t rc = IRQ_NONE; |
172cd6e1 | 5622 | LIST_HEAD(doneq); |
1da177e4 | 5623 | |
56d6aa33 | 5624 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
1da177e4 | 5625 | /* If interrupts are disabled, ignore the interrupt */ |
56d6aa33 | 5626 | if (!hrrq->allow_interrupts) { |
5627 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); | |
1da177e4 LT |
5628 | return IRQ_NONE; |
5629 | } | |
5630 | ||
1da177e4 | 5631 | while (1) { |
b53d124a | 5632 | if (ipr_process_hrrq(hrrq, -1, &doneq)) { |
5633 | rc = IRQ_HANDLED; | |
1da177e4 | 5634 | |
b53d124a | 5635 | if (!ioa_cfg->clear_isr) |
5636 | break; | |
7dd21308 | 5637 | |
1da177e4 | 5638 | /* Clear the PCI interrupt */ |
a5442ba4 | 5639 | num_hrrq = 0; |
3feeb89d | 5640 | do { |
b53d124a | 5641 | writel(IPR_PCII_HRRQ_UPDATED, |
5642 | ioa_cfg->regs.clr_interrupt_reg32); | |
7dacb64f | 5643 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
3feeb89d | 5644 | } while (int_reg & IPR_PCII_HRRQ_UPDATED && |
b53d124a | 5645 | num_hrrq++ < IPR_MAX_HRRQ_RETRIES); |
3feeb89d | 5646 | |
7dacb64f WB |
5647 | } else if (rc == IRQ_NONE && irq_none == 0) { |
5648 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); | |
5649 | irq_none++; | |
a5442ba4 WB |
5650 | } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES && |
5651 | int_reg & IPR_PCII_HRRQ_UPDATED) { | |
b53d124a | 5652 | ipr_isr_eh(ioa_cfg, |
5653 | "Error clearing HRRQ: ", num_hrrq); | |
172cd6e1 | 5654 | rc = IRQ_HANDLED; |
b53d124a | 5655 | break; |
1da177e4 LT |
5656 | } else |
5657 | break; | |
5658 | } | |
5659 | ||
5660 | if (unlikely(rc == IRQ_NONE)) | |
634651fa | 5661 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); |
1da177e4 | 5662 | |
56d6aa33 | 5663 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
172cd6e1 BK |
5664 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
5665 | list_del(&ipr_cmd->queue); | |
5666 | del_timer(&ipr_cmd->timer); | |
5667 | ipr_cmd->fast_done(ipr_cmd); | |
5668 | } | |
05a6538a | 5669 | return rc; |
5670 | } | |
5671 | ||
5672 | /** | |
5673 | * ipr_isr_mhrrq - Interrupt service routine | |
5674 | * @irq: irq number | |
5675 | * @devp: pointer to ioa config struct | |
5676 | * | |
5677 | * Return value: | |
5678 | * IRQ_NONE / IRQ_HANDLED | |
5679 | **/ | |
5680 | static irqreturn_t ipr_isr_mhrrq(int irq, void *devp) | |
5681 | { | |
5682 | struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; | |
b53d124a | 5683 | struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; |
56d6aa33 | 5684 | unsigned long hrrq_flags = 0; |
05a6538a | 5685 | struct ipr_cmnd *ipr_cmd, *temp; |
5686 | irqreturn_t rc = IRQ_NONE; | |
5687 | LIST_HEAD(doneq); | |
172cd6e1 | 5688 | |
56d6aa33 | 5689 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
05a6538a | 5690 | |
5691 | /* If interrupts are disabled, ignore the interrupt */ | |
56d6aa33 | 5692 | if (!hrrq->allow_interrupts) { |
5693 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); | |
05a6538a | 5694 | return IRQ_NONE; |
5695 | } | |
5696 | ||
89f8b33c | 5697 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
b53d124a | 5698 | if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
5699 | hrrq->toggle_bit) { | |
ea51190c | 5700 | irq_poll_sched(&hrrq->iopoll); |
b53d124a | 5701 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
5702 | return IRQ_HANDLED; | |
5703 | } | |
5704 | } else { | |
5705 | if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == | |
5706 | hrrq->toggle_bit) | |
05a6538a | 5707 | |
b53d124a | 5708 | if (ipr_process_hrrq(hrrq, -1, &doneq)) |
5709 | rc = IRQ_HANDLED; | |
5710 | } | |
05a6538a | 5711 | |
56d6aa33 | 5712 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
05a6538a | 5713 | |
5714 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { | |
5715 | list_del(&ipr_cmd->queue); | |
5716 | del_timer(&ipr_cmd->timer); | |
5717 | ipr_cmd->fast_done(ipr_cmd); | |
5718 | } | |
1da177e4 LT |
5719 | return rc; |
5720 | } | |
5721 | ||
a32c055f WB |
5722 | /** |
5723 | * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer | |
5724 | * @ioa_cfg: ioa config struct | |
5725 | * @ipr_cmd: ipr command struct | |
5726 | * | |
5727 | * Return value: | |
5728 | * 0 on success / -1 on failure | |
5729 | **/ | |
5730 | static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, | |
5731 | struct ipr_cmnd *ipr_cmd) | |
5732 | { | |
5733 | int i, nseg; | |
5734 | struct scatterlist *sg; | |
5735 | u32 length; | |
5736 | u32 ioadl_flags = 0; | |
5737 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
5738 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5739 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; | |
5740 | ||
5741 | length = scsi_bufflen(scsi_cmd); | |
5742 | if (!length) | |
5743 | return 0; | |
5744 | ||
5745 | nseg = scsi_dma_map(scsi_cmd); | |
5746 | if (nseg < 0) { | |
51f52a47 | 5747 | if (printk_ratelimit()) |
d73341bf | 5748 | dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n"); |
a32c055f WB |
5749 | return -1; |
5750 | } | |
5751 | ||
5752 | ipr_cmd->dma_use_sg = nseg; | |
5753 | ||
438b0331 | 5754 | ioarcb->data_transfer_length = cpu_to_be32(length); |
b8803b1c WB |
5755 | ioarcb->ioadl_len = |
5756 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); | |
438b0331 | 5757 | |
a32c055f WB |
5758 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
5759 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
5760 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
5761 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) | |
5762 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
5763 | ||
5764 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { | |
5765 | ioadl64[i].flags = cpu_to_be32(ioadl_flags); | |
5766 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); | |
5767 | ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); | |
5768 | } | |
5769 | ||
5770 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
5771 | return 0; | |
5772 | } | |
5773 | ||
1da177e4 LT |
5774 | /** |
5775 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer | |
5776 | * @ioa_cfg: ioa config struct | |
5777 | * @ipr_cmd: ipr command struct | |
5778 | * | |
5779 | * Return value: | |
5780 | * 0 on success / -1 on failure | |
5781 | **/ | |
5782 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, | |
5783 | struct ipr_cmnd *ipr_cmd) | |
5784 | { | |
63015bc9 FT |
5785 | int i, nseg; |
5786 | struct scatterlist *sg; | |
1da177e4 LT |
5787 | u32 length; |
5788 | u32 ioadl_flags = 0; | |
5789 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
5790 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
a32c055f | 5791 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
1da177e4 | 5792 | |
63015bc9 FT |
5793 | length = scsi_bufflen(scsi_cmd); |
5794 | if (!length) | |
1da177e4 LT |
5795 | return 0; |
5796 | ||
63015bc9 FT |
5797 | nseg = scsi_dma_map(scsi_cmd); |
5798 | if (nseg < 0) { | |
d73341bf | 5799 | dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n"); |
63015bc9 FT |
5800 | return -1; |
5801 | } | |
51b1c7e1 | 5802 | |
63015bc9 FT |
5803 | ipr_cmd->dma_use_sg = nseg; |
5804 | ||
5805 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
5806 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
5807 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
a32c055f WB |
5808 | ioarcb->data_transfer_length = cpu_to_be32(length); |
5809 | ioarcb->ioadl_len = | |
63015bc9 FT |
5810 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
5811 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
5812 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
5813 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
5814 | ioarcb->read_ioadl_len = | |
5815 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
5816 | } | |
1da177e4 | 5817 | |
a32c055f WB |
5818 | if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { |
5819 | ioadl = ioarcb->u.add_data.u.ioadl; | |
5820 | ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + | |
5821 | offsetof(struct ipr_ioarcb, u.add_data)); | |
63015bc9 FT |
5822 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
5823 | } | |
1da177e4 | 5824 | |
63015bc9 FT |
5825 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { |
5826 | ioadl[i].flags_and_data_len = | |
5827 | cpu_to_be32(ioadl_flags | sg_dma_len(sg)); | |
5828 | ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); | |
1da177e4 LT |
5829 | } |
5830 | ||
63015bc9 FT |
5831 | ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
5832 | return 0; | |
1da177e4 LT |
5833 | } |
5834 | ||
1da177e4 LT |
5835 | /** |
5836 | * ipr_erp_done - Process completion of ERP for a device | |
5837 | * @ipr_cmd: ipr command struct | |
5838 | * | |
5839 | * This function copies the sense buffer into the scsi_cmd | |
5840 | * struct and pushes the scsi_done function. | |
5841 | * | |
5842 | * Return value: | |
5843 | * nothing | |
5844 | **/ | |
5845 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) | |
5846 | { | |
5847 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
5848 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
96d21f00 | 5849 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
5850 | |
5851 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
5852 | scsi_cmd->result |= (DID_ERROR << 16); | |
fb3ed3cb BK |
5853 | scmd_printk(KERN_ERR, scsi_cmd, |
5854 | "Request Sense failed with IOASC: 0x%08X\n", ioasc); | |
1da177e4 LT |
5855 | } else { |
5856 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, | |
5857 | SCSI_SENSE_BUFFERSIZE); | |
5858 | } | |
5859 | ||
5860 | if (res) { | |
ee0a90fa BK |
5861 | if (!ipr_is_naca_model(res)) |
5862 | res->needs_sync_complete = 1; | |
1da177e4 LT |
5863 | res->in_erp = 0; |
5864 | } | |
63015bc9 | 5865 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
05a6538a | 5866 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
1da177e4 LT |
5867 | scsi_cmd->scsi_done(scsi_cmd); |
5868 | } | |
5869 | ||
5870 | /** | |
5871 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP | |
5872 | * @ipr_cmd: ipr command struct | |
5873 | * | |
5874 | * Return value: | |
5875 | * none | |
5876 | **/ | |
5877 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) | |
5878 | { | |
51b1c7e1 | 5879 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
96d21f00 | 5880 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
a32c055f | 5881 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
1da177e4 LT |
5882 | |
5883 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
a32c055f | 5884 | ioarcb->data_transfer_length = 0; |
1da177e4 | 5885 | ioarcb->read_data_transfer_length = 0; |
a32c055f | 5886 | ioarcb->ioadl_len = 0; |
1da177e4 | 5887 | ioarcb->read_ioadl_len = 0; |
96d21f00 WB |
5888 | ioasa->hdr.ioasc = 0; |
5889 | ioasa->hdr.residual_data_len = 0; | |
a32c055f WB |
5890 | |
5891 | if (ipr_cmd->ioa_cfg->sis64) | |
5892 | ioarcb->u.sis64_addr_data.data_ioadl_addr = | |
5893 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); | |
5894 | else { | |
5895 | ioarcb->write_ioadl_addr = | |
5896 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); | |
5897 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
5898 | } | |
1da177e4 LT |
5899 | } |
5900 | ||
5901 | /** | |
5902 | * ipr_erp_request_sense - Send request sense to a device | |
5903 | * @ipr_cmd: ipr command struct | |
5904 | * | |
5905 | * This function sends a request sense to a device as a result | |
5906 | * of a check condition. | |
5907 | * | |
5908 | * Return value: | |
5909 | * nothing | |
5910 | **/ | |
5911 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) | |
5912 | { | |
5913 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
96d21f00 | 5914 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
5915 | |
5916 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
5917 | ipr_erp_done(ipr_cmd); | |
5918 | return; | |
5919 | } | |
5920 | ||
5921 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
5922 | ||
5923 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; | |
5924 | cmd_pkt->cdb[0] = REQUEST_SENSE; | |
5925 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; | |
5926 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; | |
5927 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
5928 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); | |
5929 | ||
a32c055f WB |
5930 | ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, |
5931 | SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); | |
1da177e4 LT |
5932 | |
5933 | ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, | |
5934 | IPR_REQUEST_SENSE_TIMEOUT * 2); | |
5935 | } | |
5936 | ||
5937 | /** | |
5938 | * ipr_erp_cancel_all - Send cancel all to a device | |
5939 | * @ipr_cmd: ipr command struct | |
5940 | * | |
5941 | * This function sends a cancel all to a device to clear the | |
5942 | * queue. If we are running TCQ on the device, QERR is set to 1, | |
5943 | * which means all outstanding ops have been dropped on the floor. | |
5944 | * Cancel all will return them to us. | |
5945 | * | |
5946 | * Return value: | |
5947 | * nothing | |
5948 | **/ | |
5949 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) | |
5950 | { | |
5951 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
5952 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
5953 | struct ipr_cmd_pkt *cmd_pkt; | |
5954 | ||
5955 | res->in_erp = 1; | |
5956 | ||
5957 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
5958 | ||
17ea0126 | 5959 | if (!scsi_cmd->device->simple_tags) { |
1da177e4 LT |
5960 | ipr_erp_request_sense(ipr_cmd); |
5961 | return; | |
5962 | } | |
5963 | ||
5964 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
5965 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
5966 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
5967 | ||
5968 | ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, | |
5969 | IPR_CANCEL_ALL_TIMEOUT); | |
5970 | } | |
5971 | ||
5972 | /** | |
5973 | * ipr_dump_ioasa - Dump contents of IOASA | |
5974 | * @ioa_cfg: ioa config struct | |
5975 | * @ipr_cmd: ipr command struct | |
fe964d0a | 5976 | * @res: resource entry struct |
1da177e4 LT |
5977 | * |
5978 | * This function is invoked by the interrupt handler when ops | |
5979 | * fail. It will log the IOASA if appropriate. Only called | |
5980 | * for GPDD ops. | |
5981 | * | |
5982 | * Return value: | |
5983 | * none | |
5984 | **/ | |
5985 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, | |
fe964d0a | 5986 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
1da177e4 LT |
5987 | { |
5988 | int i; | |
5989 | u16 data_len; | |
b0692dd4 | 5990 | u32 ioasc, fd_ioasc; |
96d21f00 | 5991 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
1da177e4 LT |
5992 | __be32 *ioasa_data = (__be32 *)ioasa; |
5993 | int error_index; | |
5994 | ||
96d21f00 WB |
5995 | ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; |
5996 | fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; | |
1da177e4 LT |
5997 | |
5998 | if (0 == ioasc) | |
5999 | return; | |
6000 | ||
6001 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
6002 | return; | |
6003 | ||
b0692dd4 BK |
6004 | if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) |
6005 | error_index = ipr_get_error(fd_ioasc); | |
6006 | else | |
6007 | error_index = ipr_get_error(ioasc); | |
1da177e4 LT |
6008 | |
6009 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { | |
6010 | /* Don't log an error if the IOA already logged one */ | |
96d21f00 | 6011 | if (ioasa->hdr.ilid != 0) |
1da177e4 LT |
6012 | return; |
6013 | ||
cc9bd5d4 BK |
6014 | if (!ipr_is_gscsi(res)) |
6015 | return; | |
6016 | ||
1da177e4 LT |
6017 | if (ipr_error_table[error_index].log_ioasa == 0) |
6018 | return; | |
6019 | } | |
6020 | ||
fe964d0a | 6021 | ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); |
1da177e4 | 6022 | |
96d21f00 WB |
6023 | data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); |
6024 | if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) | |
6025 | data_len = sizeof(struct ipr_ioasa64); | |
6026 | else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) | |
1da177e4 | 6027 | data_len = sizeof(struct ipr_ioasa); |
1da177e4 LT |
6028 | |
6029 | ipr_err("IOASA Dump:\n"); | |
6030 | ||
6031 | for (i = 0; i < data_len / 4; i += 4) { | |
6032 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, | |
6033 | be32_to_cpu(ioasa_data[i]), | |
6034 | be32_to_cpu(ioasa_data[i+1]), | |
6035 | be32_to_cpu(ioasa_data[i+2]), | |
6036 | be32_to_cpu(ioasa_data[i+3])); | |
6037 | } | |
6038 | } | |
6039 | ||
6040 | /** | |
6041 | * ipr_gen_sense - Generate SCSI sense data from an IOASA | |
6042 | * @ioasa: IOASA | |
6043 | * @sense_buf: sense data buffer | |
6044 | * | |
6045 | * Return value: | |
6046 | * none | |
6047 | **/ | |
6048 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) | |
6049 | { | |
6050 | u32 failing_lba; | |
6051 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; | |
6052 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; | |
96d21f00 WB |
6053 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
6054 | u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); | |
1da177e4 LT |
6055 | |
6056 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); | |
6057 | ||
6058 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) | |
6059 | return; | |
6060 | ||
6061 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; | |
6062 | ||
6063 | if (ipr_is_vset_device(res) && | |
6064 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && | |
6065 | ioasa->u.vset.failing_lba_hi != 0) { | |
6066 | sense_buf[0] = 0x72; | |
6067 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); | |
6068 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); | |
6069 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); | |
6070 | ||
6071 | sense_buf[7] = 12; | |
6072 | sense_buf[8] = 0; | |
6073 | sense_buf[9] = 0x0A; | |
6074 | sense_buf[10] = 0x80; | |
6075 | ||
6076 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); | |
6077 | ||
6078 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; | |
6079 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; | |
6080 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; | |
6081 | sense_buf[15] = failing_lba & 0x000000ff; | |
6082 | ||
6083 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
6084 | ||
6085 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; | |
6086 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; | |
6087 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; | |
6088 | sense_buf[19] = failing_lba & 0x000000ff; | |
6089 | } else { | |
6090 | sense_buf[0] = 0x70; | |
6091 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); | |
6092 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); | |
6093 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); | |
6094 | ||
6095 | /* Illegal request */ | |
6096 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && | |
96d21f00 | 6097 | (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { |
1da177e4 LT |
6098 | sense_buf[7] = 10; /* additional length */ |
6099 | ||
6100 | /* IOARCB was in error */ | |
6101 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) | |
6102 | sense_buf[15] = 0xC0; | |
6103 | else /* Parameter data was invalid */ | |
6104 | sense_buf[15] = 0x80; | |
6105 | ||
6106 | sense_buf[16] = | |
6107 | ((IPR_FIELD_POINTER_MASK & | |
96d21f00 | 6108 | be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; |
1da177e4 LT |
6109 | sense_buf[17] = |
6110 | (IPR_FIELD_POINTER_MASK & | |
96d21f00 | 6111 | be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; |
1da177e4 LT |
6112 | } else { |
6113 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { | |
6114 | if (ipr_is_vset_device(res)) | |
6115 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
6116 | else | |
6117 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); | |
6118 | ||
6119 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ | |
6120 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; | |
6121 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; | |
6122 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; | |
6123 | sense_buf[6] = failing_lba & 0x000000ff; | |
6124 | } | |
6125 | ||
6126 | sense_buf[7] = 6; /* additional length */ | |
6127 | } | |
6128 | } | |
6129 | } | |
6130 | ||
ee0a90fa BK |
6131 | /** |
6132 | * ipr_get_autosense - Copy autosense data to sense buffer | |
6133 | * @ipr_cmd: ipr command struct | |
6134 | * | |
6135 | * This function copies the autosense buffer to the buffer | |
6136 | * in the scsi_cmd, if there is autosense available. | |
6137 | * | |
6138 | * Return value: | |
6139 | * 1 if autosense was available / 0 if not | |
6140 | **/ | |
6141 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) | |
6142 | { | |
96d21f00 WB |
6143 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
6144 | struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; | |
ee0a90fa | 6145 | |
96d21f00 | 6146 | if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) |
ee0a90fa BK |
6147 | return 0; |
6148 | ||
96d21f00 WB |
6149 | if (ipr_cmd->ioa_cfg->sis64) |
6150 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, | |
6151 | min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), | |
6152 | SCSI_SENSE_BUFFERSIZE)); | |
6153 | else | |
6154 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, | |
6155 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), | |
6156 | SCSI_SENSE_BUFFERSIZE)); | |
ee0a90fa BK |
6157 | return 1; |
6158 | } | |
6159 | ||
1da177e4 LT |
6160 | /** |
6161 | * ipr_erp_start - Process an error response for a SCSI op | |
6162 | * @ioa_cfg: ioa config struct | |
6163 | * @ipr_cmd: ipr command struct | |
6164 | * | |
6165 | * This function determines whether or not to initiate ERP | |
6166 | * on the affected device. | |
6167 | * | |
6168 | * Return value: | |
6169 | * nothing | |
6170 | **/ | |
6171 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, | |
6172 | struct ipr_cmnd *ipr_cmd) | |
6173 | { | |
6174 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
6175 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
96d21f00 | 6176 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
8a048994 | 6177 | u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; |
1da177e4 LT |
6178 | |
6179 | if (!res) { | |
6180 | ipr_scsi_eh_done(ipr_cmd); | |
6181 | return; | |
6182 | } | |
6183 | ||
8a048994 | 6184 | if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) |
1da177e4 LT |
6185 | ipr_gen_sense(ipr_cmd); |
6186 | ||
cc9bd5d4 BK |
6187 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
6188 | ||
8a048994 | 6189 | switch (masked_ioasc) { |
1da177e4 | 6190 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: |
ee0a90fa BK |
6191 | if (ipr_is_naca_model(res)) |
6192 | scsi_cmd->result |= (DID_ABORT << 16); | |
6193 | else | |
6194 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
1da177e4 LT |
6195 | break; |
6196 | case IPR_IOASC_IR_RESOURCE_HANDLE: | |
b0df54bb | 6197 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
1da177e4 LT |
6198 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
6199 | break; | |
6200 | case IPR_IOASC_HW_SEL_TIMEOUT: | |
6201 | scsi_cmd->result |= (DID_NO_CONNECT << 16); | |
ee0a90fa BK |
6202 | if (!ipr_is_naca_model(res)) |
6203 | res->needs_sync_complete = 1; | |
1da177e4 LT |
6204 | break; |
6205 | case IPR_IOASC_SYNC_REQUIRED: | |
6206 | if (!res->in_erp) | |
6207 | res->needs_sync_complete = 1; | |
6208 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
6209 | break; | |
6210 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ | |
b0df54bb | 6211 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
1da177e4 LT |
6212 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
6213 | break; | |
6214 | case IPR_IOASC_BUS_WAS_RESET: | |
6215 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: | |
6216 | /* | |
6217 | * Report the bus reset and ask for a retry. The device | |
6218 | * will give CC/UA the next command. | |
6219 | */ | |
6220 | if (!res->resetting_device) | |
6221 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); | |
6222 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa BK |
6223 | if (!ipr_is_naca_model(res)) |
6224 | res->needs_sync_complete = 1; | |
1da177e4 LT |
6225 | break; |
6226 | case IPR_IOASC_HW_DEV_BUS_STATUS: | |
6227 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); | |
6228 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { | |
ee0a90fa BK |
6229 | if (!ipr_get_autosense(ipr_cmd)) { |
6230 | if (!ipr_is_naca_model(res)) { | |
6231 | ipr_erp_cancel_all(ipr_cmd); | |
6232 | return; | |
6233 | } | |
6234 | } | |
1da177e4 | 6235 | } |
ee0a90fa BK |
6236 | if (!ipr_is_naca_model(res)) |
6237 | res->needs_sync_complete = 1; | |
1da177e4 LT |
6238 | break; |
6239 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: | |
6240 | break; | |
f8ee25d7 WX |
6241 | case IPR_IOASC_IR_NON_OPTIMIZED: |
6242 | if (res->raw_mode) { | |
6243 | res->raw_mode = 0; | |
6244 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
6245 | } else | |
6246 | scsi_cmd->result |= (DID_ERROR << 16); | |
6247 | break; | |
1da177e4 | 6248 | default: |
5b7304fb BK |
6249 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) |
6250 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 6251 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
1da177e4 LT |
6252 | res->needs_sync_complete = 1; |
6253 | break; | |
6254 | } | |
6255 | ||
63015bc9 | 6256 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
05a6538a | 6257 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
1da177e4 LT |
6258 | scsi_cmd->scsi_done(scsi_cmd); |
6259 | } | |
6260 | ||
6261 | /** | |
6262 | * ipr_scsi_done - mid-layer done function | |
6263 | * @ipr_cmd: ipr command struct | |
6264 | * | |
6265 | * This function is invoked by the interrupt handler for | |
6266 | * ops generated by the SCSI mid-layer | |
6267 | * | |
6268 | * Return value: | |
6269 | * none | |
6270 | **/ | |
6271 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) | |
6272 | { | |
6273 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6274 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
96d21f00 | 6275 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
36b8e180 | 6276 | unsigned long lock_flags; |
1da177e4 | 6277 | |
96d21f00 | 6278 | scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); |
1da177e4 LT |
6279 | |
6280 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { | |
172cd6e1 BK |
6281 | scsi_dma_unmap(scsi_cmd); |
6282 | ||
36b8e180 | 6283 | spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags); |
05a6538a | 6284 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
1da177e4 | 6285 | scsi_cmd->scsi_done(scsi_cmd); |
36b8e180 | 6286 | spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags); |
172cd6e1 | 6287 | } else { |
36b8e180 BK |
6288 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
6289 | spin_lock(&ipr_cmd->hrrq->_lock); | |
1da177e4 | 6290 | ipr_erp_start(ioa_cfg, ipr_cmd); |
36b8e180 BK |
6291 | spin_unlock(&ipr_cmd->hrrq->_lock); |
6292 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
172cd6e1 | 6293 | } |
1da177e4 LT |
6294 | } |
6295 | ||
1da177e4 LT |
6296 | /** |
6297 | * ipr_queuecommand - Queue a mid-layer request | |
00bfef2c | 6298 | * @shost: scsi host struct |
1da177e4 | 6299 | * @scsi_cmd: scsi command struct |
1da177e4 LT |
6300 | * |
6301 | * This function queues a request generated by the mid-layer. | |
6302 | * | |
6303 | * Return value: | |
6304 | * 0 on success | |
6305 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy | |
6306 | * SCSI_MLQUEUE_HOST_BUSY if host is busy | |
6307 | **/ | |
00bfef2c BK |
6308 | static int ipr_queuecommand(struct Scsi_Host *shost, |
6309 | struct scsi_cmnd *scsi_cmd) | |
1da177e4 LT |
6310 | { |
6311 | struct ipr_ioa_cfg *ioa_cfg; | |
6312 | struct ipr_resource_entry *res; | |
6313 | struct ipr_ioarcb *ioarcb; | |
6314 | struct ipr_cmnd *ipr_cmd; | |
56d6aa33 | 6315 | unsigned long hrrq_flags, lock_flags; |
d12f1576 | 6316 | int rc; |
05a6538a | 6317 | struct ipr_hrr_queue *hrrq; |
6318 | int hrrq_id; | |
1da177e4 | 6319 | |
00bfef2c BK |
6320 | ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
6321 | ||
1da177e4 | 6322 | scsi_cmd->result = (DID_OK << 16); |
00bfef2c | 6323 | res = scsi_cmd->device->hostdata; |
56d6aa33 | 6324 | |
6325 | if (ipr_is_gata(res) && res->sata_port) { | |
6326 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
6327 | rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap); | |
6328 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
6329 | return rc; | |
6330 | } | |
6331 | ||
05a6538a | 6332 | hrrq_id = ipr_get_hrrq_index(ioa_cfg); |
6333 | hrrq = &ioa_cfg->hrrq[hrrq_id]; | |
1da177e4 | 6334 | |
56d6aa33 | 6335 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
1da177e4 LT |
6336 | /* |
6337 | * We are currently blocking all devices due to a host reset | |
6338 | * We have told the host to stop giving us new requests, but | |
6339 | * ERP ops don't count. FIXME | |
6340 | */ | |
bfae7820 | 6341 | if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) { |
56d6aa33 | 6342 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
1da177e4 | 6343 | return SCSI_MLQUEUE_HOST_BUSY; |
00bfef2c | 6344 | } |
1da177e4 LT |
6345 | |
6346 | /* | |
6347 | * FIXME - Create scsi_set_host_offline interface | |
6348 | * and the ioa_is_dead check can be removed | |
6349 | */ | |
bfae7820 | 6350 | if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) { |
56d6aa33 | 6351 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
00bfef2c | 6352 | goto err_nodev; |
1da177e4 LT |
6353 | } |
6354 | ||
05a6538a | 6355 | ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq); |
6356 | if (ipr_cmd == NULL) { | |
56d6aa33 | 6357 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
05a6538a | 6358 | return SCSI_MLQUEUE_HOST_BUSY; |
6359 | } | |
56d6aa33 | 6360 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
35a39691 | 6361 | |
172cd6e1 | 6362 | ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done); |
1da177e4 | 6363 | ioarcb = &ipr_cmd->ioarcb; |
1da177e4 LT |
6364 | |
6365 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); | |
6366 | ipr_cmd->scsi_cmd = scsi_cmd; | |
172cd6e1 | 6367 | ipr_cmd->done = ipr_scsi_eh_done; |
1da177e4 | 6368 | |
4f92d01a | 6369 | if (ipr_is_gscsi(res)) { |
1da177e4 LT |
6370 | if (scsi_cmd->underflow == 0) |
6371 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
6372 | ||
4f92d01a | 6373 | if (res->reset_occurred) { |
0b1f8d44 | 6374 | res->reset_occurred = 0; |
ab6c10b1 | 6375 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; |
0b1f8d44 | 6376 | } |
4f92d01a GKB |
6377 | } |
6378 | ||
6379 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { | |
6380 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
6381 | ||
1da177e4 | 6382 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; |
50668633 CH |
6383 | if (scsi_cmd->flags & SCMD_TAGGED) |
6384 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK; | |
6385 | else | |
6386 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK; | |
1da177e4 LT |
6387 | } |
6388 | ||
6389 | if (scsi_cmd->cmnd[0] >= 0xC0 && | |
05a6538a | 6390 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) { |
1da177e4 | 6391 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
05a6538a | 6392 | } |
3cb4fc1f | 6393 | if (res->raw_mode && ipr_is_af_dasd_device(res)) { |
f8ee25d7 | 6394 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE; |
1da177e4 | 6395 | |
3cb4fc1f GKB |
6396 | if (scsi_cmd->underflow == 0) |
6397 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
6398 | } | |
6399 | ||
d12f1576 DC |
6400 | if (ioa_cfg->sis64) |
6401 | rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); | |
6402 | else | |
6403 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); | |
1da177e4 | 6404 | |
56d6aa33 | 6405 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
6406 | if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) { | |
05a6538a | 6407 | list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q); |
56d6aa33 | 6408 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
00bfef2c BK |
6409 | if (!rc) |
6410 | scsi_dma_unmap(scsi_cmd); | |
a5fb407e | 6411 | return SCSI_MLQUEUE_HOST_BUSY; |
1da177e4 LT |
6412 | } |
6413 | ||
56d6aa33 | 6414 | if (unlikely(hrrq->ioa_is_dead)) { |
05a6538a | 6415 | list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q); |
56d6aa33 | 6416 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
00bfef2c BK |
6417 | scsi_dma_unmap(scsi_cmd); |
6418 | goto err_nodev; | |
6419 | } | |
6420 | ||
6421 | ioarcb->res_handle = res->res_handle; | |
6422 | if (res->needs_sync_complete) { | |
6423 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; | |
6424 | res->needs_sync_complete = 0; | |
6425 | } | |
05a6538a | 6426 | list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q); |
00bfef2c | 6427 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); |
a5fb407e | 6428 | ipr_send_command(ipr_cmd); |
56d6aa33 | 6429 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
1da177e4 | 6430 | return 0; |
1da177e4 | 6431 | |
00bfef2c | 6432 | err_nodev: |
56d6aa33 | 6433 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
00bfef2c BK |
6434 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
6435 | scsi_cmd->result = (DID_NO_CONNECT << 16); | |
6436 | scsi_cmd->scsi_done(scsi_cmd); | |
56d6aa33 | 6437 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
00bfef2c BK |
6438 | return 0; |
6439 | } | |
f281233d | 6440 | |
35a39691 BK |
6441 | /** |
6442 | * ipr_ioctl - IOCTL handler | |
6443 | * @sdev: scsi device struct | |
6444 | * @cmd: IOCTL cmd | |
6445 | * @arg: IOCTL arg | |
6446 | * | |
6447 | * Return value: | |
6448 | * 0 on success / other on failure | |
6449 | **/ | |
bd705f2d | 6450 | static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) |
35a39691 BK |
6451 | { |
6452 | struct ipr_resource_entry *res; | |
6453 | ||
6454 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
0ce3a7e5 BK |
6455 | if (res && ipr_is_gata(res)) { |
6456 | if (cmd == HDIO_GET_IDENTITY) | |
6457 | return -ENOTTY; | |
94be9a58 | 6458 | return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); |
0ce3a7e5 | 6459 | } |
35a39691 BK |
6460 | |
6461 | return -EINVAL; | |
6462 | } | |
6463 | ||
1da177e4 LT |
6464 | /** |
6465 | * ipr_info - Get information about the card/driver | |
6466 | * @scsi_host: scsi host struct | |
6467 | * | |
6468 | * Return value: | |
6469 | * pointer to buffer with description string | |
6470 | **/ | |
203fa3fe | 6471 | static const char *ipr_ioa_info(struct Scsi_Host *host) |
1da177e4 LT |
6472 | { |
6473 | static char buffer[512]; | |
6474 | struct ipr_ioa_cfg *ioa_cfg; | |
6475 | unsigned long lock_flags = 0; | |
6476 | ||
6477 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; | |
6478 | ||
6479 | spin_lock_irqsave(host->host_lock, lock_flags); | |
6480 | sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); | |
6481 | spin_unlock_irqrestore(host->host_lock, lock_flags); | |
6482 | ||
6483 | return buffer; | |
6484 | } | |
6485 | ||
6486 | static struct scsi_host_template driver_template = { | |
6487 | .module = THIS_MODULE, | |
6488 | .name = "IPR", | |
6489 | .info = ipr_ioa_info, | |
35a39691 | 6490 | .ioctl = ipr_ioctl, |
1da177e4 LT |
6491 | .queuecommand = ipr_queuecommand, |
6492 | .eh_abort_handler = ipr_eh_abort, | |
6493 | .eh_device_reset_handler = ipr_eh_dev_reset, | |
6494 | .eh_host_reset_handler = ipr_eh_host_reset, | |
6495 | .slave_alloc = ipr_slave_alloc, | |
6496 | .slave_configure = ipr_slave_configure, | |
6497 | .slave_destroy = ipr_slave_destroy, | |
f688f96d | 6498 | .scan_finished = ipr_scan_finished, |
35a39691 BK |
6499 | .target_alloc = ipr_target_alloc, |
6500 | .target_destroy = ipr_target_destroy, | |
1da177e4 | 6501 | .change_queue_depth = ipr_change_queue_depth, |
1da177e4 LT |
6502 | .bios_param = ipr_biosparam, |
6503 | .can_queue = IPR_MAX_COMMANDS, | |
6504 | .this_id = -1, | |
6505 | .sg_tablesize = IPR_MAX_SGLIST, | |
6506 | .max_sectors = IPR_IOA_MAX_SECTORS, | |
6507 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, | |
6508 | .use_clustering = ENABLE_CLUSTERING, | |
6509 | .shost_attrs = ipr_ioa_attrs, | |
6510 | .sdev_attrs = ipr_dev_attrs, | |
54b2b50c | 6511 | .proc_name = IPR_NAME, |
1da177e4 LT |
6512 | }; |
6513 | ||
35a39691 BK |
6514 | /** |
6515 | * ipr_ata_phy_reset - libata phy_reset handler | |
6516 | * @ap: ata port to reset | |
6517 | * | |
6518 | **/ | |
6519 | static void ipr_ata_phy_reset(struct ata_port *ap) | |
6520 | { | |
6521 | unsigned long flags; | |
6522 | struct ipr_sata_port *sata_port = ap->private_data; | |
6523 | struct ipr_resource_entry *res = sata_port->res; | |
6524 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
6525 | int rc; | |
6526 | ||
6527 | ENTER; | |
6528 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
203fa3fe | 6529 | while (ioa_cfg->in_reset_reload) { |
35a39691 BK |
6530 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
6531 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
6532 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6533 | } | |
6534 | ||
56d6aa33 | 6535 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) |
35a39691 BK |
6536 | goto out_unlock; |
6537 | ||
6538 | rc = ipr_device_reset(ioa_cfg, res); | |
6539 | ||
6540 | if (rc) { | |
3e4ec344 | 6541 | ap->link.device[0].class = ATA_DEV_NONE; |
35a39691 BK |
6542 | goto out_unlock; |
6543 | } | |
6544 | ||
3e7ebdfa WB |
6545 | ap->link.device[0].class = res->ata_class; |
6546 | if (ap->link.device[0].class == ATA_DEV_UNKNOWN) | |
3e4ec344 | 6547 | ap->link.device[0].class = ATA_DEV_NONE; |
35a39691 BK |
6548 | |
6549 | out_unlock: | |
6550 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6551 | LEAVE; | |
6552 | } | |
6553 | ||
6554 | /** | |
6555 | * ipr_ata_post_internal - Cleanup after an internal command | |
6556 | * @qc: ATA queued command | |
6557 | * | |
6558 | * Return value: | |
6559 | * none | |
6560 | **/ | |
6561 | static void ipr_ata_post_internal(struct ata_queued_cmd *qc) | |
6562 | { | |
6563 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
6564 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
6565 | struct ipr_cmnd *ipr_cmd; | |
05a6538a | 6566 | struct ipr_hrr_queue *hrrq; |
35a39691 BK |
6567 | unsigned long flags; |
6568 | ||
6569 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
203fa3fe | 6570 | while (ioa_cfg->in_reset_reload) { |
73d98ff0 BK |
6571 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
6572 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
6573 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6574 | } | |
6575 | ||
05a6538a | 6576 | for_each_hrrq(hrrq, ioa_cfg) { |
56d6aa33 | 6577 | spin_lock(&hrrq->_lock); |
05a6538a | 6578 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { |
6579 | if (ipr_cmd->qc == qc) { | |
6580 | ipr_device_reset(ioa_cfg, sata_port->res); | |
6581 | break; | |
6582 | } | |
35a39691 | 6583 | } |
56d6aa33 | 6584 | spin_unlock(&hrrq->_lock); |
35a39691 BK |
6585 | } |
6586 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
6587 | } | |
6588 | ||
35a39691 BK |
6589 | /** |
6590 | * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure | |
6591 | * @regs: destination | |
6592 | * @tf: source ATA taskfile | |
6593 | * | |
6594 | * Return value: | |
6595 | * none | |
6596 | **/ | |
6597 | static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, | |
6598 | struct ata_taskfile *tf) | |
6599 | { | |
6600 | regs->feature = tf->feature; | |
6601 | regs->nsect = tf->nsect; | |
6602 | regs->lbal = tf->lbal; | |
6603 | regs->lbam = tf->lbam; | |
6604 | regs->lbah = tf->lbah; | |
6605 | regs->device = tf->device; | |
6606 | regs->command = tf->command; | |
6607 | regs->hob_feature = tf->hob_feature; | |
6608 | regs->hob_nsect = tf->hob_nsect; | |
6609 | regs->hob_lbal = tf->hob_lbal; | |
6610 | regs->hob_lbam = tf->hob_lbam; | |
6611 | regs->hob_lbah = tf->hob_lbah; | |
6612 | regs->ctl = tf->ctl; | |
6613 | } | |
6614 | ||
6615 | /** | |
6616 | * ipr_sata_done - done function for SATA commands | |
6617 | * @ipr_cmd: ipr command struct | |
6618 | * | |
6619 | * This function is invoked by the interrupt handler for | |
6620 | * ops generated by the SCSI mid-layer to SATA devices | |
6621 | * | |
6622 | * Return value: | |
6623 | * none | |
6624 | **/ | |
6625 | static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) | |
6626 | { | |
6627 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6628 | struct ata_queued_cmd *qc = ipr_cmd->qc; | |
6629 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
6630 | struct ipr_resource_entry *res = sata_port->res; | |
96d21f00 | 6631 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
35a39691 | 6632 | |
56d6aa33 | 6633 | spin_lock(&ipr_cmd->hrrq->_lock); |
96d21f00 WB |
6634 | if (ipr_cmd->ioa_cfg->sis64) |
6635 | memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, | |
6636 | sizeof(struct ipr_ioasa_gata)); | |
6637 | else | |
6638 | memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, | |
6639 | sizeof(struct ipr_ioasa_gata)); | |
35a39691 BK |
6640 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
6641 | ||
96d21f00 | 6642 | if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) |
3e7ebdfa | 6643 | scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); |
35a39691 BK |
6644 | |
6645 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) | |
96d21f00 | 6646 | qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); |
35a39691 | 6647 | else |
96d21f00 | 6648 | qc->err_mask |= ac_err_mask(sata_port->ioasa.status); |
05a6538a | 6649 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
56d6aa33 | 6650 | spin_unlock(&ipr_cmd->hrrq->_lock); |
35a39691 BK |
6651 | ata_qc_complete(qc); |
6652 | } | |
6653 | ||
a32c055f WB |
6654 | /** |
6655 | * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list | |
6656 | * @ipr_cmd: ipr command struct | |
6657 | * @qc: ATA queued command | |
6658 | * | |
6659 | **/ | |
6660 | static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, | |
6661 | struct ata_queued_cmd *qc) | |
6662 | { | |
6663 | u32 ioadl_flags = 0; | |
6664 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
1ac7c26d | 6665 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64; |
a32c055f WB |
6666 | struct ipr_ioadl64_desc *last_ioadl64 = NULL; |
6667 | int len = qc->nbytes; | |
6668 | struct scatterlist *sg; | |
6669 | unsigned int si; | |
6670 | dma_addr_t dma_addr = ipr_cmd->dma_addr; | |
6671 | ||
6672 | if (len == 0) | |
6673 | return; | |
6674 | ||
6675 | if (qc->dma_dir == DMA_TO_DEVICE) { | |
6676 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
6677 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
6678 | } else if (qc->dma_dir == DMA_FROM_DEVICE) | |
6679 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
6680 | ||
6681 | ioarcb->data_transfer_length = cpu_to_be32(len); | |
6682 | ioarcb->ioadl_len = | |
6683 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); | |
6684 | ioarcb->u.sis64_addr_data.data_ioadl_addr = | |
1ac7c26d | 6685 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64)); |
a32c055f WB |
6686 | |
6687 | for_each_sg(qc->sg, sg, qc->n_elem, si) { | |
6688 | ioadl64->flags = cpu_to_be32(ioadl_flags); | |
6689 | ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); | |
6690 | ioadl64->address = cpu_to_be64(sg_dma_address(sg)); | |
6691 | ||
6692 | last_ioadl64 = ioadl64; | |
6693 | ioadl64++; | |
6694 | } | |
6695 | ||
6696 | if (likely(last_ioadl64)) | |
6697 | last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
6698 | } | |
6699 | ||
35a39691 BK |
6700 | /** |
6701 | * ipr_build_ata_ioadl - Build an ATA scatter/gather list | |
6702 | * @ipr_cmd: ipr command struct | |
6703 | * @qc: ATA queued command | |
6704 | * | |
6705 | **/ | |
6706 | static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, | |
6707 | struct ata_queued_cmd *qc) | |
6708 | { | |
6709 | u32 ioadl_flags = 0; | |
6710 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
a32c055f | 6711 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
3be6cbd7 | 6712 | struct ipr_ioadl_desc *last_ioadl = NULL; |
dde20207 | 6713 | int len = qc->nbytes; |
35a39691 | 6714 | struct scatterlist *sg; |
ff2aeb1e | 6715 | unsigned int si; |
35a39691 BK |
6716 | |
6717 | if (len == 0) | |
6718 | return; | |
6719 | ||
6720 | if (qc->dma_dir == DMA_TO_DEVICE) { | |
6721 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
6722 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
a32c055f WB |
6723 | ioarcb->data_transfer_length = cpu_to_be32(len); |
6724 | ioarcb->ioadl_len = | |
35a39691 BK |
6725 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
6726 | } else if (qc->dma_dir == DMA_FROM_DEVICE) { | |
6727 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
6728 | ioarcb->read_data_transfer_length = cpu_to_be32(len); | |
6729 | ioarcb->read_ioadl_len = | |
6730 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
6731 | } | |
6732 | ||
ff2aeb1e | 6733 | for_each_sg(qc->sg, sg, qc->n_elem, si) { |
35a39691 BK |
6734 | ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); |
6735 | ioadl->address = cpu_to_be32(sg_dma_address(sg)); | |
3be6cbd7 JG |
6736 | |
6737 | last_ioadl = ioadl; | |
6738 | ioadl++; | |
35a39691 | 6739 | } |
3be6cbd7 JG |
6740 | |
6741 | if (likely(last_ioadl)) | |
6742 | last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
35a39691 BK |
6743 | } |
6744 | ||
56d6aa33 | 6745 | /** |
6746 | * ipr_qc_defer - Get a free ipr_cmd | |
6747 | * @qc: queued command | |
6748 | * | |
6749 | * Return value: | |
6750 | * 0 if success | |
6751 | **/ | |
6752 | static int ipr_qc_defer(struct ata_queued_cmd *qc) | |
6753 | { | |
6754 | struct ata_port *ap = qc->ap; | |
6755 | struct ipr_sata_port *sata_port = ap->private_data; | |
6756 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
6757 | struct ipr_cmnd *ipr_cmd; | |
6758 | struct ipr_hrr_queue *hrrq; | |
6759 | int hrrq_id; | |
6760 | ||
6761 | hrrq_id = ipr_get_hrrq_index(ioa_cfg); | |
6762 | hrrq = &ioa_cfg->hrrq[hrrq_id]; | |
6763 | ||
6764 | qc->lldd_task = NULL; | |
6765 | spin_lock(&hrrq->_lock); | |
6766 | if (unlikely(hrrq->ioa_is_dead)) { | |
6767 | spin_unlock(&hrrq->_lock); | |
6768 | return 0; | |
6769 | } | |
6770 | ||
6771 | if (unlikely(!hrrq->allow_cmds)) { | |
6772 | spin_unlock(&hrrq->_lock); | |
6773 | return ATA_DEFER_LINK; | |
6774 | } | |
6775 | ||
6776 | ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq); | |
6777 | if (ipr_cmd == NULL) { | |
6778 | spin_unlock(&hrrq->_lock); | |
6779 | return ATA_DEFER_LINK; | |
6780 | } | |
6781 | ||
6782 | qc->lldd_task = ipr_cmd; | |
6783 | spin_unlock(&hrrq->_lock); | |
6784 | return 0; | |
6785 | } | |
6786 | ||
35a39691 BK |
6787 | /** |
6788 | * ipr_qc_issue - Issue a SATA qc to a device | |
6789 | * @qc: queued command | |
6790 | * | |
6791 | * Return value: | |
6792 | * 0 if success | |
6793 | **/ | |
6794 | static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) | |
6795 | { | |
6796 | struct ata_port *ap = qc->ap; | |
6797 | struct ipr_sata_port *sata_port = ap->private_data; | |
6798 | struct ipr_resource_entry *res = sata_port->res; | |
6799 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
6800 | struct ipr_cmnd *ipr_cmd; | |
6801 | struct ipr_ioarcb *ioarcb; | |
6802 | struct ipr_ioarcb_ata_regs *regs; | |
6803 | ||
56d6aa33 | 6804 | if (qc->lldd_task == NULL) |
6805 | ipr_qc_defer(qc); | |
6806 | ||
6807 | ipr_cmd = qc->lldd_task; | |
6808 | if (ipr_cmd == NULL) | |
0feeed82 | 6809 | return AC_ERR_SYSTEM; |
35a39691 | 6810 | |
56d6aa33 | 6811 | qc->lldd_task = NULL; |
6812 | spin_lock(&ipr_cmd->hrrq->_lock); | |
6813 | if (unlikely(!ipr_cmd->hrrq->allow_cmds || | |
6814 | ipr_cmd->hrrq->ioa_is_dead)) { | |
6815 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); | |
6816 | spin_unlock(&ipr_cmd->hrrq->_lock); | |
6817 | return AC_ERR_SYSTEM; | |
6818 | } | |
6819 | ||
05a6538a | 6820 | ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done); |
35a39691 | 6821 | ioarcb = &ipr_cmd->ioarcb; |
35a39691 | 6822 | |
a32c055f WB |
6823 | if (ioa_cfg->sis64) { |
6824 | regs = &ipr_cmd->i.ata_ioadl.regs; | |
6825 | ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); | |
6826 | } else | |
6827 | regs = &ioarcb->u.add_data.u.regs; | |
6828 | ||
6829 | memset(regs, 0, sizeof(*regs)); | |
6830 | ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); | |
35a39691 | 6831 | |
56d6aa33 | 6832 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
35a39691 BK |
6833 | ipr_cmd->qc = qc; |
6834 | ipr_cmd->done = ipr_sata_done; | |
3e7ebdfa | 6835 | ipr_cmd->ioarcb.res_handle = res->res_handle; |
35a39691 BK |
6836 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; |
6837 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
6838 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
dde20207 | 6839 | ipr_cmd->dma_use_sg = qc->n_elem; |
35a39691 | 6840 | |
a32c055f WB |
6841 | if (ioa_cfg->sis64) |
6842 | ipr_build_ata_ioadl64(ipr_cmd, qc); | |
6843 | else | |
6844 | ipr_build_ata_ioadl(ipr_cmd, qc); | |
6845 | ||
35a39691 BK |
6846 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; |
6847 | ipr_copy_sata_tf(regs, &qc->tf); | |
6848 | memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); | |
3e7ebdfa | 6849 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); |
35a39691 BK |
6850 | |
6851 | switch (qc->tf.protocol) { | |
6852 | case ATA_PROT_NODATA: | |
6853 | case ATA_PROT_PIO: | |
6854 | break; | |
6855 | ||
6856 | case ATA_PROT_DMA: | |
6857 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
6858 | break; | |
6859 | ||
0dc36888 TH |
6860 | case ATAPI_PROT_PIO: |
6861 | case ATAPI_PROT_NODATA: | |
35a39691 BK |
6862 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; |
6863 | break; | |
6864 | ||
0dc36888 | 6865 | case ATAPI_PROT_DMA: |
35a39691 BK |
6866 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; |
6867 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
6868 | break; | |
6869 | ||
6870 | default: | |
6871 | WARN_ON(1); | |
56d6aa33 | 6872 | spin_unlock(&ipr_cmd->hrrq->_lock); |
0feeed82 | 6873 | return AC_ERR_INVALID; |
35a39691 BK |
6874 | } |
6875 | ||
a32c055f | 6876 | ipr_send_command(ipr_cmd); |
56d6aa33 | 6877 | spin_unlock(&ipr_cmd->hrrq->_lock); |
a32c055f | 6878 | |
35a39691 BK |
6879 | return 0; |
6880 | } | |
6881 | ||
4c9bf4e7 TH |
6882 | /** |
6883 | * ipr_qc_fill_rtf - Read result TF | |
6884 | * @qc: ATA queued command | |
6885 | * | |
6886 | * Return value: | |
6887 | * true | |
6888 | **/ | |
6889 | static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) | |
6890 | { | |
6891 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
6892 | struct ipr_ioasa_gata *g = &sata_port->ioasa; | |
6893 | struct ata_taskfile *tf = &qc->result_tf; | |
6894 | ||
6895 | tf->feature = g->error; | |
6896 | tf->nsect = g->nsect; | |
6897 | tf->lbal = g->lbal; | |
6898 | tf->lbam = g->lbam; | |
6899 | tf->lbah = g->lbah; | |
6900 | tf->device = g->device; | |
6901 | tf->command = g->status; | |
6902 | tf->hob_nsect = g->hob_nsect; | |
6903 | tf->hob_lbal = g->hob_lbal; | |
6904 | tf->hob_lbam = g->hob_lbam; | |
6905 | tf->hob_lbah = g->hob_lbah; | |
4c9bf4e7 TH |
6906 | |
6907 | return true; | |
6908 | } | |
6909 | ||
35a39691 | 6910 | static struct ata_port_operations ipr_sata_ops = { |
35a39691 | 6911 | .phy_reset = ipr_ata_phy_reset, |
a1efdaba | 6912 | .hardreset = ipr_sata_reset, |
35a39691 | 6913 | .post_internal_cmd = ipr_ata_post_internal, |
35a39691 | 6914 | .qc_prep = ata_noop_qc_prep, |
56d6aa33 | 6915 | .qc_defer = ipr_qc_defer, |
35a39691 | 6916 | .qc_issue = ipr_qc_issue, |
4c9bf4e7 | 6917 | .qc_fill_rtf = ipr_qc_fill_rtf, |
35a39691 BK |
6918 | .port_start = ata_sas_port_start, |
6919 | .port_stop = ata_sas_port_stop | |
6920 | }; | |
6921 | ||
6922 | static struct ata_port_info sata_port_info = { | |
5067c046 SL |
6923 | .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA | |
6924 | ATA_FLAG_SAS_HOST, | |
0f2e0330 SS |
6925 | .pio_mask = ATA_PIO4_ONLY, |
6926 | .mwdma_mask = ATA_MWDMA2, | |
6927 | .udma_mask = ATA_UDMA6, | |
35a39691 BK |
6928 | .port_ops = &ipr_sata_ops |
6929 | }; | |
6930 | ||
1da177e4 LT |
6931 | #ifdef CONFIG_PPC_PSERIES |
6932 | static const u16 ipr_blocked_processors[] = { | |
d3dbeef6 ME |
6933 | PVR_NORTHSTAR, |
6934 | PVR_PULSAR, | |
6935 | PVR_POWER4, | |
6936 | PVR_ICESTAR, | |
6937 | PVR_SSTAR, | |
6938 | PVR_POWER4p, | |
6939 | PVR_630, | |
6940 | PVR_630p | |
1da177e4 LT |
6941 | }; |
6942 | ||
6943 | /** | |
6944 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware | |
6945 | * @ioa_cfg: ioa cfg struct | |
6946 | * | |
6947 | * Adapters that use Gemstone revision < 3.1 do not work reliably on | |
6948 | * certain pSeries hardware. This function determines if the given | |
6949 | * adapter is in one of these confgurations or not. | |
6950 | * | |
6951 | * Return value: | |
6952 | * 1 if adapter is not supported / 0 if adapter is supported | |
6953 | **/ | |
6954 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) | |
6955 | { | |
1da177e4 LT |
6956 | int i; |
6957 | ||
44c10138 | 6958 | if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { |
203fa3fe | 6959 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) { |
d3dbeef6 | 6960 | if (pvr_version_is(ipr_blocked_processors[i])) |
44c10138 | 6961 | return 1; |
1da177e4 LT |
6962 | } |
6963 | } | |
6964 | return 0; | |
6965 | } | |
6966 | #else | |
6967 | #define ipr_invalid_adapter(ioa_cfg) 0 | |
6968 | #endif | |
6969 | ||
6970 | /** | |
6971 | * ipr_ioa_bringdown_done - IOA bring down completion. | |
6972 | * @ipr_cmd: ipr command struct | |
6973 | * | |
6974 | * This function processes the completion of an adapter bring down. | |
6975 | * It wakes any reset sleepers. | |
6976 | * | |
6977 | * Return value: | |
6978 | * IPR_RC_JOB_RETURN | |
6979 | **/ | |
6980 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) | |
6981 | { | |
6982 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
96b04db9 | 6983 | int i; |
1da177e4 LT |
6984 | |
6985 | ENTER; | |
bfae7820 BK |
6986 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
6987 | ipr_trace; | |
6988 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
6989 | scsi_unblock_requests(ioa_cfg->host); | |
6990 | spin_lock_irq(ioa_cfg->host->host_lock); | |
6991 | } | |
6992 | ||
1da177e4 LT |
6993 | ioa_cfg->in_reset_reload = 0; |
6994 | ioa_cfg->reset_retries = 0; | |
96b04db9 | 6995 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
6996 | spin_lock(&ioa_cfg->hrrq[i]._lock); | |
6997 | ioa_cfg->hrrq[i].ioa_is_dead = 1; | |
6998 | spin_unlock(&ioa_cfg->hrrq[i]._lock); | |
6999 | } | |
7000 | wmb(); | |
7001 | ||
05a6538a | 7002 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
1da177e4 | 7003 | wake_up_all(&ioa_cfg->reset_wait_q); |
1da177e4 LT |
7004 | LEAVE; |
7005 | ||
7006 | return IPR_RC_JOB_RETURN; | |
7007 | } | |
7008 | ||
7009 | /** | |
7010 | * ipr_ioa_reset_done - IOA reset completion. | |
7011 | * @ipr_cmd: ipr command struct | |
7012 | * | |
7013 | * This function processes the completion of an adapter reset. | |
7014 | * It schedules any necessary mid-layer add/removes and | |
7015 | * wakes any reset sleepers. | |
7016 | * | |
7017 | * Return value: | |
7018 | * IPR_RC_JOB_RETURN | |
7019 | **/ | |
7020 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) | |
7021 | { | |
7022 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7023 | struct ipr_resource_entry *res; | |
7024 | struct ipr_hostrcb *hostrcb, *temp; | |
56d6aa33 | 7025 | int i = 0, j; |
1da177e4 LT |
7026 | |
7027 | ENTER; | |
7028 | ioa_cfg->in_reset_reload = 0; | |
56d6aa33 | 7029 | for (j = 0; j < ioa_cfg->hrrq_num; j++) { |
7030 | spin_lock(&ioa_cfg->hrrq[j]._lock); | |
7031 | ioa_cfg->hrrq[j].allow_cmds = 1; | |
7032 | spin_unlock(&ioa_cfg->hrrq[j]._lock); | |
7033 | } | |
7034 | wmb(); | |
1da177e4 | 7035 | ioa_cfg->reset_cmd = NULL; |
3d1d0da6 | 7036 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
1da177e4 LT |
7037 | |
7038 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
f688f96d | 7039 | if (res->add_to_ml || res->del_from_ml) { |
1da177e4 LT |
7040 | ipr_trace; |
7041 | break; | |
7042 | } | |
7043 | } | |
7044 | schedule_work(&ioa_cfg->work_q); | |
7045 | ||
7046 | list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { | |
7047 | list_del(&hostrcb->queue); | |
7048 | if (i++ < IPR_NUM_LOG_HCAMS) | |
7049 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
7050 | else | |
7051 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
7052 | } | |
7053 | ||
6bb04170 | 7054 | scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); |
1da177e4 LT |
7055 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); |
7056 | ||
7057 | ioa_cfg->reset_retries = 0; | |
05a6538a | 7058 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
1da177e4 LT |
7059 | wake_up_all(&ioa_cfg->reset_wait_q); |
7060 | ||
30237853 | 7061 | spin_unlock(ioa_cfg->host->host_lock); |
1da177e4 | 7062 | scsi_unblock_requests(ioa_cfg->host); |
30237853 | 7063 | spin_lock(ioa_cfg->host->host_lock); |
1da177e4 | 7064 | |
56d6aa33 | 7065 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) |
1da177e4 LT |
7066 | scsi_block_requests(ioa_cfg->host); |
7067 | ||
f688f96d | 7068 | schedule_work(&ioa_cfg->work_q); |
1da177e4 LT |
7069 | LEAVE; |
7070 | return IPR_RC_JOB_RETURN; | |
7071 | } | |
7072 | ||
7073 | /** | |
7074 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer | |
7075 | * @supported_dev: supported device struct | |
7076 | * @vpids: vendor product id struct | |
7077 | * | |
7078 | * Return value: | |
7079 | * none | |
7080 | **/ | |
7081 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, | |
7082 | struct ipr_std_inq_vpids *vpids) | |
7083 | { | |
7084 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); | |
7085 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); | |
7086 | supported_dev->num_records = 1; | |
7087 | supported_dev->data_length = | |
7088 | cpu_to_be16(sizeof(struct ipr_supported_device)); | |
7089 | supported_dev->reserved = 0; | |
7090 | } | |
7091 | ||
7092 | /** | |
7093 | * ipr_set_supported_devs - Send Set Supported Devices for a device | |
7094 | * @ipr_cmd: ipr command struct | |
7095 | * | |
a32c055f | 7096 | * This function sends a Set Supported Devices to the adapter |
1da177e4 LT |
7097 | * |
7098 | * Return value: | |
7099 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7100 | **/ | |
7101 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) | |
7102 | { | |
7103 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7104 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; | |
1da177e4 LT |
7105 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7106 | struct ipr_resource_entry *res = ipr_cmd->u.res; | |
7107 | ||
7108 | ipr_cmd->job_step = ipr_ioa_reset_done; | |
7109 | ||
7110 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { | |
e4fbf44e | 7111 | if (!ipr_is_scsi_disk(res)) |
1da177e4 LT |
7112 | continue; |
7113 | ||
7114 | ipr_cmd->u.res = res; | |
3e7ebdfa | 7115 | ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); |
1da177e4 LT |
7116 | |
7117 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
7118 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
7119 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
7120 | ||
7121 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; | |
3e7ebdfa | 7122 | ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; |
1da177e4 LT |
7123 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; |
7124 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; | |
7125 | ||
a32c055f WB |
7126 | ipr_init_ioadl(ipr_cmd, |
7127 | ioa_cfg->vpd_cbs_dma + | |
7128 | offsetof(struct ipr_misc_cbs, supp_dev), | |
7129 | sizeof(struct ipr_supported_device), | |
7130 | IPR_IOADL_FLAGS_WRITE_LAST); | |
1da177e4 LT |
7131 | |
7132 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
7133 | IPR_SET_SUP_DEVICE_TIMEOUT); | |
7134 | ||
3e7ebdfa WB |
7135 | if (!ioa_cfg->sis64) |
7136 | ipr_cmd->job_step = ipr_set_supported_devs; | |
05a6538a | 7137 | LEAVE; |
1da177e4 LT |
7138 | return IPR_RC_JOB_RETURN; |
7139 | } | |
7140 | ||
05a6538a | 7141 | LEAVE; |
1da177e4 LT |
7142 | return IPR_RC_JOB_CONTINUE; |
7143 | } | |
7144 | ||
7145 | /** | |
7146 | * ipr_get_mode_page - Locate specified mode page | |
7147 | * @mode_pages: mode page buffer | |
7148 | * @page_code: page code to find | |
7149 | * @len: minimum required length for mode page | |
7150 | * | |
7151 | * Return value: | |
7152 | * pointer to mode page / NULL on failure | |
7153 | **/ | |
7154 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, | |
7155 | u32 page_code, u32 len) | |
7156 | { | |
7157 | struct ipr_mode_page_hdr *mode_hdr; | |
7158 | u32 page_length; | |
7159 | u32 length; | |
7160 | ||
7161 | if (!mode_pages || (mode_pages->hdr.length == 0)) | |
7162 | return NULL; | |
7163 | ||
7164 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; | |
7165 | mode_hdr = (struct ipr_mode_page_hdr *) | |
7166 | (mode_pages->data + mode_pages->hdr.block_desc_len); | |
7167 | ||
7168 | while (length) { | |
7169 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { | |
7170 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) | |
7171 | return mode_hdr; | |
7172 | break; | |
7173 | } else { | |
7174 | page_length = (sizeof(struct ipr_mode_page_hdr) + | |
7175 | mode_hdr->page_length); | |
7176 | length -= page_length; | |
7177 | mode_hdr = (struct ipr_mode_page_hdr *) | |
7178 | ((unsigned long)mode_hdr + page_length); | |
7179 | } | |
7180 | } | |
7181 | return NULL; | |
7182 | } | |
7183 | ||
7184 | /** | |
7185 | * ipr_check_term_power - Check for term power errors | |
7186 | * @ioa_cfg: ioa config struct | |
7187 | * @mode_pages: IOAFP mode pages buffer | |
7188 | * | |
7189 | * Check the IOAFP's mode page 28 for term power errors | |
7190 | * | |
7191 | * Return value: | |
7192 | * nothing | |
7193 | **/ | |
7194 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, | |
7195 | struct ipr_mode_pages *mode_pages) | |
7196 | { | |
7197 | int i; | |
7198 | int entry_length; | |
7199 | struct ipr_dev_bus_entry *bus; | |
7200 | struct ipr_mode_page28 *mode_page; | |
7201 | ||
7202 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
7203 | sizeof(struct ipr_mode_page28)); | |
7204 | ||
7205 | entry_length = mode_page->entry_length; | |
7206 | ||
7207 | bus = mode_page->bus; | |
7208 | ||
7209 | for (i = 0; i < mode_page->num_entries; i++) { | |
7210 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { | |
7211 | dev_err(&ioa_cfg->pdev->dev, | |
7212 | "Term power is absent on scsi bus %d\n", | |
7213 | bus->res_addr.bus); | |
7214 | } | |
7215 | ||
7216 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); | |
7217 | } | |
7218 | } | |
7219 | ||
7220 | /** | |
7221 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table | |
7222 | * @ioa_cfg: ioa config struct | |
7223 | * | |
7224 | * Looks through the config table checking for SES devices. If | |
7225 | * the SES device is in the SES table indicating a maximum SCSI | |
7226 | * bus speed, the speed is limited for the bus. | |
7227 | * | |
7228 | * Return value: | |
7229 | * none | |
7230 | **/ | |
7231 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) | |
7232 | { | |
7233 | u32 max_xfer_rate; | |
7234 | int i; | |
7235 | ||
7236 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
7237 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, | |
7238 | ioa_cfg->bus_attr[i].bus_width); | |
7239 | ||
7240 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) | |
7241 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; | |
7242 | } | |
7243 | } | |
7244 | ||
7245 | /** | |
7246 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 | |
7247 | * @ioa_cfg: ioa config struct | |
7248 | * @mode_pages: mode page 28 buffer | |
7249 | * | |
7250 | * Updates mode page 28 based on driver configuration | |
7251 | * | |
7252 | * Return value: | |
7253 | * none | |
7254 | **/ | |
7255 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, | |
203fa3fe | 7256 | struct ipr_mode_pages *mode_pages) |
1da177e4 LT |
7257 | { |
7258 | int i, entry_length; | |
7259 | struct ipr_dev_bus_entry *bus; | |
7260 | struct ipr_bus_attributes *bus_attr; | |
7261 | struct ipr_mode_page28 *mode_page; | |
7262 | ||
7263 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
7264 | sizeof(struct ipr_mode_page28)); | |
7265 | ||
7266 | entry_length = mode_page->entry_length; | |
7267 | ||
7268 | /* Loop for each device bus entry */ | |
7269 | for (i = 0, bus = mode_page->bus; | |
7270 | i < mode_page->num_entries; | |
7271 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { | |
7272 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { | |
7273 | dev_err(&ioa_cfg->pdev->dev, | |
7274 | "Invalid resource address reported: 0x%08X\n", | |
7275 | IPR_GET_PHYS_LOC(bus->res_addr)); | |
7276 | continue; | |
7277 | } | |
7278 | ||
7279 | bus_attr = &ioa_cfg->bus_attr[i]; | |
7280 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; | |
7281 | bus->bus_width = bus_attr->bus_width; | |
7282 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); | |
7283 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; | |
7284 | if (bus_attr->qas_enabled) | |
7285 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; | |
7286 | else | |
7287 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; | |
7288 | } | |
7289 | } | |
7290 | ||
7291 | /** | |
7292 | * ipr_build_mode_select - Build a mode select command | |
7293 | * @ipr_cmd: ipr command struct | |
7294 | * @res_handle: resource handle to send command to | |
7295 | * @parm: Byte 2 of Mode Sense command | |
7296 | * @dma_addr: DMA buffer address | |
7297 | * @xfer_len: data transfer length | |
7298 | * | |
7299 | * Return value: | |
7300 | * none | |
7301 | **/ | |
7302 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, | |
a32c055f WB |
7303 | __be32 res_handle, u8 parm, |
7304 | dma_addr_t dma_addr, u8 xfer_len) | |
1da177e4 | 7305 | { |
1da177e4 LT |
7306 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7307 | ||
7308 | ioarcb->res_handle = res_handle; | |
7309 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
7310 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
7311 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; | |
7312 | ioarcb->cmd_pkt.cdb[1] = parm; | |
7313 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
7314 | ||
a32c055f | 7315 | ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); |
1da177e4 LT |
7316 | } |
7317 | ||
7318 | /** | |
7319 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA | |
7320 | * @ipr_cmd: ipr command struct | |
7321 | * | |
7322 | * This function sets up the SCSI bus attributes and sends | |
7323 | * a Mode Select for Page 28 to activate them. | |
7324 | * | |
7325 | * Return value: | |
7326 | * IPR_RC_JOB_RETURN | |
7327 | **/ | |
7328 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) | |
7329 | { | |
7330 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7331 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; | |
7332 | int length; | |
7333 | ||
7334 | ENTER; | |
4733804c BK |
7335 | ipr_scsi_bus_speed_limit(ioa_cfg); |
7336 | ipr_check_term_power(ioa_cfg, mode_pages); | |
7337 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); | |
7338 | length = mode_pages->hdr.length + 1; | |
7339 | mode_pages->hdr.length = 0; | |
1da177e4 LT |
7340 | |
7341 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, | |
7342 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), | |
7343 | length); | |
7344 | ||
f72919ec WB |
7345 | ipr_cmd->job_step = ipr_set_supported_devs; |
7346 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, | |
7347 | struct ipr_resource_entry, queue); | |
1da177e4 LT |
7348 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
7349 | ||
7350 | LEAVE; | |
7351 | return IPR_RC_JOB_RETURN; | |
7352 | } | |
7353 | ||
7354 | /** | |
7355 | * ipr_build_mode_sense - Builds a mode sense command | |
7356 | * @ipr_cmd: ipr command struct | |
7357 | * @res: resource entry struct | |
7358 | * @parm: Byte 2 of mode sense command | |
7359 | * @dma_addr: DMA address of mode sense buffer | |
7360 | * @xfer_len: Size of DMA buffer | |
7361 | * | |
7362 | * Return value: | |
7363 | * none | |
7364 | **/ | |
7365 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, | |
7366 | __be32 res_handle, | |
a32c055f | 7367 | u8 parm, dma_addr_t dma_addr, u8 xfer_len) |
1da177e4 | 7368 | { |
1da177e4 LT |
7369 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7370 | ||
7371 | ioarcb->res_handle = res_handle; | |
7372 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; | |
7373 | ioarcb->cmd_pkt.cdb[2] = parm; | |
7374 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
7375 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
7376 | ||
a32c055f | 7377 | ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
1da177e4 LT |
7378 | } |
7379 | ||
dfed823e BK |
7380 | /** |
7381 | * ipr_reset_cmd_failed - Handle failure of IOA reset command | |
7382 | * @ipr_cmd: ipr command struct | |
7383 | * | |
7384 | * This function handles the failure of an IOA bringup command. | |
7385 | * | |
7386 | * Return value: | |
7387 | * IPR_RC_JOB_RETURN | |
7388 | **/ | |
7389 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) | |
7390 | { | |
7391 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
96d21f00 | 7392 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
dfed823e BK |
7393 | |
7394 | dev_err(&ioa_cfg->pdev->dev, | |
7395 | "0x%02X failed with IOASC: 0x%08X\n", | |
7396 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); | |
7397 | ||
7398 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
05a6538a | 7399 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
dfed823e BK |
7400 | return IPR_RC_JOB_RETURN; |
7401 | } | |
7402 | ||
7403 | /** | |
7404 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense | |
7405 | * @ipr_cmd: ipr command struct | |
7406 | * | |
7407 | * This function handles the failure of a Mode Sense to the IOAFP. | |
7408 | * Some adapters do not handle all mode pages. | |
7409 | * | |
7410 | * Return value: | |
7411 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7412 | **/ | |
7413 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) | |
7414 | { | |
f72919ec | 7415 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
96d21f00 | 7416 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
dfed823e BK |
7417 | |
7418 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { | |
f72919ec WB |
7419 | ipr_cmd->job_step = ipr_set_supported_devs; |
7420 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, | |
7421 | struct ipr_resource_entry, queue); | |
dfed823e BK |
7422 | return IPR_RC_JOB_CONTINUE; |
7423 | } | |
7424 | ||
7425 | return ipr_reset_cmd_failed(ipr_cmd); | |
7426 | } | |
7427 | ||
1da177e4 LT |
7428 | /** |
7429 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA | |
7430 | * @ipr_cmd: ipr command struct | |
7431 | * | |
7432 | * This function send a Page 28 mode sense to the IOA to | |
7433 | * retrieve SCSI bus attributes. | |
7434 | * | |
7435 | * Return value: | |
7436 | * IPR_RC_JOB_RETURN | |
7437 | **/ | |
7438 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) | |
7439 | { | |
7440 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7441 | ||
7442 | ENTER; | |
7443 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), | |
7444 | 0x28, ioa_cfg->vpd_cbs_dma + | |
7445 | offsetof(struct ipr_misc_cbs, mode_pages), | |
7446 | sizeof(struct ipr_mode_pages)); | |
7447 | ||
7448 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; | |
dfed823e | 7449 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
1da177e4 LT |
7450 | |
7451 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
7452 | ||
7453 | LEAVE; | |
7454 | return IPR_RC_JOB_RETURN; | |
7455 | } | |
7456 | ||
ac09c349 BK |
7457 | /** |
7458 | * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA | |
7459 | * @ipr_cmd: ipr command struct | |
7460 | * | |
7461 | * This function enables dual IOA RAID support if possible. | |
7462 | * | |
7463 | * Return value: | |
7464 | * IPR_RC_JOB_RETURN | |
7465 | **/ | |
7466 | static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) | |
7467 | { | |
7468 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7469 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; | |
7470 | struct ipr_mode_page24 *mode_page; | |
7471 | int length; | |
7472 | ||
7473 | ENTER; | |
7474 | mode_page = ipr_get_mode_page(mode_pages, 0x24, | |
7475 | sizeof(struct ipr_mode_page24)); | |
7476 | ||
7477 | if (mode_page) | |
7478 | mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; | |
7479 | ||
7480 | length = mode_pages->hdr.length + 1; | |
7481 | mode_pages->hdr.length = 0; | |
7482 | ||
7483 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, | |
7484 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), | |
7485 | length); | |
7486 | ||
7487 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
7488 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
7489 | ||
7490 | LEAVE; | |
7491 | return IPR_RC_JOB_RETURN; | |
7492 | } | |
7493 | ||
7494 | /** | |
7495 | * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense | |
7496 | * @ipr_cmd: ipr command struct | |
7497 | * | |
7498 | * This function handles the failure of a Mode Sense to the IOAFP. | |
7499 | * Some adapters do not handle all mode pages. | |
7500 | * | |
7501 | * Return value: | |
7502 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7503 | **/ | |
7504 | static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) | |
7505 | { | |
96d21f00 | 7506 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
ac09c349 BK |
7507 | |
7508 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { | |
7509 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
7510 | return IPR_RC_JOB_CONTINUE; | |
7511 | } | |
7512 | ||
7513 | return ipr_reset_cmd_failed(ipr_cmd); | |
7514 | } | |
7515 | ||
7516 | /** | |
7517 | * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA | |
7518 | * @ipr_cmd: ipr command struct | |
7519 | * | |
7520 | * This function send a mode sense to the IOA to retrieve | |
7521 | * the IOA Advanced Function Control mode page. | |
7522 | * | |
7523 | * Return value: | |
7524 | * IPR_RC_JOB_RETURN | |
7525 | **/ | |
7526 | static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) | |
7527 | { | |
7528 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7529 | ||
7530 | ENTER; | |
7531 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), | |
7532 | 0x24, ioa_cfg->vpd_cbs_dma + | |
7533 | offsetof(struct ipr_misc_cbs, mode_pages), | |
7534 | sizeof(struct ipr_mode_pages)); | |
7535 | ||
7536 | ipr_cmd->job_step = ipr_ioafp_mode_select_page24; | |
7537 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; | |
7538 | ||
7539 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
7540 | ||
7541 | LEAVE; | |
7542 | return IPR_RC_JOB_RETURN; | |
7543 | } | |
7544 | ||
1da177e4 LT |
7545 | /** |
7546 | * ipr_init_res_table - Initialize the resource table | |
7547 | * @ipr_cmd: ipr command struct | |
7548 | * | |
7549 | * This function looks through the existing resource table, comparing | |
7550 | * it with the config table. This function will take care of old/new | |
7551 | * devices and schedule adding/removing them from the mid-layer | |
7552 | * as appropriate. | |
7553 | * | |
7554 | * Return value: | |
7555 | * IPR_RC_JOB_CONTINUE | |
7556 | **/ | |
7557 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) | |
7558 | { | |
7559 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7560 | struct ipr_resource_entry *res, *temp; | |
3e7ebdfa WB |
7561 | struct ipr_config_table_entry_wrapper cfgtew; |
7562 | int entries, found, flag, i; | |
1da177e4 LT |
7563 | LIST_HEAD(old_res); |
7564 | ||
7565 | ENTER; | |
3e7ebdfa WB |
7566 | if (ioa_cfg->sis64) |
7567 | flag = ioa_cfg->u.cfg_table64->hdr64.flags; | |
7568 | else | |
7569 | flag = ioa_cfg->u.cfg_table->hdr.flags; | |
7570 | ||
7571 | if (flag & IPR_UCODE_DOWNLOAD_REQ) | |
1da177e4 LT |
7572 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); |
7573 | ||
7574 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) | |
7575 | list_move_tail(&res->queue, &old_res); | |
7576 | ||
3e7ebdfa | 7577 | if (ioa_cfg->sis64) |
438b0331 | 7578 | entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); |
3e7ebdfa WB |
7579 | else |
7580 | entries = ioa_cfg->u.cfg_table->hdr.num_entries; | |
7581 | ||
7582 | for (i = 0; i < entries; i++) { | |
7583 | if (ioa_cfg->sis64) | |
7584 | cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; | |
7585 | else | |
7586 | cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; | |
1da177e4 LT |
7587 | found = 0; |
7588 | ||
7589 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
3e7ebdfa | 7590 | if (ipr_is_same_device(res, &cfgtew)) { |
1da177e4 LT |
7591 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
7592 | found = 1; | |
7593 | break; | |
7594 | } | |
7595 | } | |
7596 | ||
7597 | if (!found) { | |
7598 | if (list_empty(&ioa_cfg->free_res_q)) { | |
7599 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); | |
7600 | break; | |
7601 | } | |
7602 | ||
7603 | found = 1; | |
7604 | res = list_entry(ioa_cfg->free_res_q.next, | |
7605 | struct ipr_resource_entry, queue); | |
7606 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
3e7ebdfa | 7607 | ipr_init_res_entry(res, &cfgtew); |
1da177e4 | 7608 | res->add_to_ml = 1; |
56115598 WB |
7609 | } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) |
7610 | res->sdev->allow_restart = 1; | |
1da177e4 LT |
7611 | |
7612 | if (found) | |
3e7ebdfa | 7613 | ipr_update_res_entry(res, &cfgtew); |
1da177e4 LT |
7614 | } |
7615 | ||
7616 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
7617 | if (res->sdev) { | |
7618 | res->del_from_ml = 1; | |
3e7ebdfa | 7619 | res->res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 | 7620 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
1da177e4 LT |
7621 | } |
7622 | } | |
7623 | ||
3e7ebdfa WB |
7624 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
7625 | ipr_clear_res_target(res); | |
7626 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
7627 | } | |
7628 | ||
ac09c349 BK |
7629 | if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
7630 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; | |
7631 | else | |
7632 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
1da177e4 LT |
7633 | |
7634 | LEAVE; | |
7635 | return IPR_RC_JOB_CONTINUE; | |
7636 | } | |
7637 | ||
7638 | /** | |
7639 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. | |
7640 | * @ipr_cmd: ipr command struct | |
7641 | * | |
7642 | * This function sends a Query IOA Configuration command | |
7643 | * to the adapter to retrieve the IOA configuration table. | |
7644 | * | |
7645 | * Return value: | |
7646 | * IPR_RC_JOB_RETURN | |
7647 | **/ | |
7648 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) | |
7649 | { | |
7650 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7651 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
1da177e4 | 7652 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
ac09c349 | 7653 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; |
1da177e4 LT |
7654 | |
7655 | ENTER; | |
ac09c349 BK |
7656 | if (cap->cap & IPR_CAP_DUAL_IOA_RAID) |
7657 | ioa_cfg->dual_raid = 1; | |
1da177e4 LT |
7658 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", |
7659 | ucode_vpd->major_release, ucode_vpd->card_type, | |
7660 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); | |
7661 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
7662 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
7663 | ||
7664 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; | |
438b0331 | 7665 | ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; |
3e7ebdfa WB |
7666 | ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; |
7667 | ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; | |
1da177e4 | 7668 | |
3e7ebdfa | 7669 | ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, |
a32c055f | 7670 | IPR_IOADL_FLAGS_READ_LAST); |
1da177e4 LT |
7671 | |
7672 | ipr_cmd->job_step = ipr_init_res_table; | |
7673 | ||
7674 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
7675 | ||
7676 | LEAVE; | |
7677 | return IPR_RC_JOB_RETURN; | |
7678 | } | |
7679 | ||
1a47af26 GKB |
7680 | static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd) |
7681 | { | |
7682 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); | |
7683 | ||
7684 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) | |
7685 | return IPR_RC_JOB_CONTINUE; | |
7686 | ||
7687 | return ipr_reset_cmd_failed(ipr_cmd); | |
7688 | } | |
7689 | ||
7690 | static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd, | |
7691 | __be32 res_handle, u8 sa_code) | |
7692 | { | |
7693 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
7694 | ||
7695 | ioarcb->res_handle = res_handle; | |
7696 | ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION; | |
7697 | ioarcb->cmd_pkt.cdb[1] = sa_code; | |
7698 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
7699 | } | |
7700 | ||
7701 | /** | |
7702 | * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service | |
7703 | * action | |
7704 | * | |
7705 | * Return value: | |
7706 | * none | |
7707 | **/ | |
7708 | static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd) | |
7709 | { | |
7710 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
7711 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7712 | struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; | |
7713 | ||
7714 | ENTER; | |
7715 | ||
7716 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; | |
7717 | ||
7718 | if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) { | |
7719 | ipr_build_ioa_service_action(ipr_cmd, | |
7720 | cpu_to_be32(IPR_IOA_RES_HANDLE), | |
7721 | IPR_IOA_SA_CHANGE_CACHE_PARAMS); | |
7722 | ||
7723 | ioarcb->cmd_pkt.cdb[2] = 0x40; | |
7724 | ||
7725 | ipr_cmd->job_step_failed = ipr_ioa_service_action_failed; | |
7726 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
7727 | IPR_SET_SUP_DEVICE_TIMEOUT); | |
7728 | ||
7729 | LEAVE; | |
7730 | return IPR_RC_JOB_RETURN; | |
7731 | } | |
7732 | ||
7733 | LEAVE; | |
7734 | return IPR_RC_JOB_CONTINUE; | |
7735 | } | |
7736 | ||
1da177e4 LT |
7737 | /** |
7738 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. | |
7739 | * @ipr_cmd: ipr command struct | |
7740 | * | |
7741 | * This utility function sends an inquiry to the adapter. | |
7742 | * | |
7743 | * Return value: | |
7744 | * none | |
7745 | **/ | |
7746 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, | |
a32c055f | 7747 | dma_addr_t dma_addr, u8 xfer_len) |
1da177e4 LT |
7748 | { |
7749 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
1da177e4 LT |
7750 | |
7751 | ENTER; | |
7752 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
7753 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
7754 | ||
7755 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; | |
7756 | ioarcb->cmd_pkt.cdb[1] = flags; | |
7757 | ioarcb->cmd_pkt.cdb[2] = page; | |
7758 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
7759 | ||
a32c055f | 7760 | ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
1da177e4 LT |
7761 | |
7762 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
7763 | LEAVE; | |
7764 | } | |
7765 | ||
62275040 BK |
7766 | /** |
7767 | * ipr_inquiry_page_supported - Is the given inquiry page supported | |
7768 | * @page0: inquiry page 0 buffer | |
7769 | * @page: page code. | |
7770 | * | |
7771 | * This function determines if the specified inquiry page is supported. | |
7772 | * | |
7773 | * Return value: | |
7774 | * 1 if page is supported / 0 if not | |
7775 | **/ | |
7776 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) | |
7777 | { | |
7778 | int i; | |
7779 | ||
7780 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) | |
7781 | if (page0->page[i] == page) | |
7782 | return 1; | |
7783 | ||
7784 | return 0; | |
7785 | } | |
7786 | ||
1021b3ff GKB |
7787 | /** |
7788 | * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter. | |
7789 | * @ipr_cmd: ipr command struct | |
7790 | * | |
7791 | * This function sends a Page 0xC4 inquiry to the adapter | |
7792 | * to retrieve software VPD information. | |
7793 | * | |
7794 | * Return value: | |
7795 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7796 | **/ | |
7797 | static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd) | |
7798 | { | |
7799 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7800 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; | |
7801 | struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; | |
7802 | ||
7803 | ENTER; | |
1a47af26 | 7804 | ipr_cmd->job_step = ipr_ioafp_set_caching_parameters; |
1021b3ff GKB |
7805 | memset(pageC4, 0, sizeof(*pageC4)); |
7806 | ||
7807 | if (ipr_inquiry_page_supported(page0, 0xC4)) { | |
7808 | ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4, | |
7809 | (ioa_cfg->vpd_cbs_dma | |
7810 | + offsetof(struct ipr_misc_cbs, | |
7811 | pageC4_data)), | |
7812 | sizeof(struct ipr_inquiry_pageC4)); | |
7813 | return IPR_RC_JOB_RETURN; | |
7814 | } | |
7815 | ||
7816 | LEAVE; | |
7817 | return IPR_RC_JOB_CONTINUE; | |
7818 | } | |
7819 | ||
ac09c349 BK |
7820 | /** |
7821 | * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. | |
7822 | * @ipr_cmd: ipr command struct | |
7823 | * | |
7824 | * This function sends a Page 0xD0 inquiry to the adapter | |
7825 | * to retrieve adapter capabilities. | |
7826 | * | |
7827 | * Return value: | |
7828 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7829 | **/ | |
7830 | static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) | |
7831 | { | |
7832 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7833 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; | |
7834 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; | |
7835 | ||
7836 | ENTER; | |
1021b3ff | 7837 | ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry; |
ac09c349 BK |
7838 | memset(cap, 0, sizeof(*cap)); |
7839 | ||
7840 | if (ipr_inquiry_page_supported(page0, 0xD0)) { | |
7841 | ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, | |
7842 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), | |
7843 | sizeof(struct ipr_inquiry_cap)); | |
7844 | return IPR_RC_JOB_RETURN; | |
7845 | } | |
7846 | ||
7847 | LEAVE; | |
7848 | return IPR_RC_JOB_CONTINUE; | |
7849 | } | |
7850 | ||
1da177e4 LT |
7851 | /** |
7852 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. | |
7853 | * @ipr_cmd: ipr command struct | |
7854 | * | |
7855 | * This function sends a Page 3 inquiry to the adapter | |
7856 | * to retrieve software VPD information. | |
7857 | * | |
7858 | * Return value: | |
7859 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7860 | **/ | |
7861 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) | |
62275040 BK |
7862 | { |
7863 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
62275040 BK |
7864 | |
7865 | ENTER; | |
7866 | ||
ac09c349 | 7867 | ipr_cmd->job_step = ipr_ioafp_cap_inquiry; |
62275040 BK |
7868 | |
7869 | ipr_ioafp_inquiry(ipr_cmd, 1, 3, | |
7870 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), | |
7871 | sizeof(struct ipr_inquiry_page3)); | |
7872 | ||
7873 | LEAVE; | |
7874 | return IPR_RC_JOB_RETURN; | |
7875 | } | |
7876 | ||
7877 | /** | |
7878 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. | |
7879 | * @ipr_cmd: ipr command struct | |
7880 | * | |
7881 | * This function sends a Page 0 inquiry to the adapter | |
7882 | * to retrieve supported inquiry pages. | |
7883 | * | |
7884 | * Return value: | |
7885 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7886 | **/ | |
7887 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) | |
1da177e4 LT |
7888 | { |
7889 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7890 | char type[5]; | |
7891 | ||
7892 | ENTER; | |
7893 | ||
7894 | /* Grab the type out of the VPD and store it away */ | |
7895 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); | |
7896 | type[4] = '\0'; | |
7897 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); | |
7898 | ||
f688f96d BK |
7899 | if (ipr_invalid_adapter(ioa_cfg)) { |
7900 | dev_err(&ioa_cfg->pdev->dev, | |
7901 | "Adapter not supported in this hardware configuration.\n"); | |
7902 | ||
7903 | if (!ipr_testmode) { | |
7904 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; | |
7905 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
7906 | list_add_tail(&ipr_cmd->queue, | |
7907 | &ioa_cfg->hrrq->hrrq_free_q); | |
7908 | return IPR_RC_JOB_RETURN; | |
7909 | } | |
7910 | } | |
7911 | ||
62275040 | 7912 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
1da177e4 | 7913 | |
62275040 BK |
7914 | ipr_ioafp_inquiry(ipr_cmd, 1, 0, |
7915 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), | |
7916 | sizeof(struct ipr_inquiry_page0)); | |
1da177e4 LT |
7917 | |
7918 | LEAVE; | |
7919 | return IPR_RC_JOB_RETURN; | |
7920 | } | |
7921 | ||
7922 | /** | |
7923 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. | |
7924 | * @ipr_cmd: ipr command struct | |
7925 | * | |
7926 | * This function sends a standard inquiry to the adapter. | |
7927 | * | |
7928 | * Return value: | |
7929 | * IPR_RC_JOB_RETURN | |
7930 | **/ | |
7931 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) | |
7932 | { | |
7933 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7934 | ||
7935 | ENTER; | |
62275040 | 7936 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
1da177e4 LT |
7937 | |
7938 | ipr_ioafp_inquiry(ipr_cmd, 0, 0, | |
7939 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), | |
7940 | sizeof(struct ipr_ioa_vpd)); | |
7941 | ||
7942 | LEAVE; | |
7943 | return IPR_RC_JOB_RETURN; | |
7944 | } | |
7945 | ||
7946 | /** | |
214777ba | 7947 | * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. |
1da177e4 LT |
7948 | * @ipr_cmd: ipr command struct |
7949 | * | |
7950 | * This function send an Identify Host Request Response Queue | |
7951 | * command to establish the HRRQ with the adapter. | |
7952 | * | |
7953 | * Return value: | |
7954 | * IPR_RC_JOB_RETURN | |
7955 | **/ | |
214777ba | 7956 | static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) |
1da177e4 LT |
7957 | { |
7958 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7959 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
05a6538a | 7960 | struct ipr_hrr_queue *hrrq; |
1da177e4 LT |
7961 | |
7962 | ENTER; | |
05a6538a | 7963 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; |
1da177e4 LT |
7964 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); |
7965 | ||
56d6aa33 | 7966 | if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) { |
7967 | hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index]; | |
1da177e4 | 7968 | |
05a6538a | 7969 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; |
7970 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
1da177e4 | 7971 | |
05a6538a | 7972 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
7973 | if (ioa_cfg->sis64) | |
7974 | ioarcb->cmd_pkt.cdb[1] = 0x1; | |
214777ba | 7975 | |
05a6538a | 7976 | if (ioa_cfg->nvectors == 1) |
7977 | ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE; | |
7978 | else | |
7979 | ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE; | |
7980 | ||
7981 | ioarcb->cmd_pkt.cdb[2] = | |
7982 | ((u64) hrrq->host_rrq_dma >> 24) & 0xff; | |
7983 | ioarcb->cmd_pkt.cdb[3] = | |
7984 | ((u64) hrrq->host_rrq_dma >> 16) & 0xff; | |
7985 | ioarcb->cmd_pkt.cdb[4] = | |
7986 | ((u64) hrrq->host_rrq_dma >> 8) & 0xff; | |
7987 | ioarcb->cmd_pkt.cdb[5] = | |
7988 | ((u64) hrrq->host_rrq_dma) & 0xff; | |
7989 | ioarcb->cmd_pkt.cdb[7] = | |
7990 | ((sizeof(u32) * hrrq->size) >> 8) & 0xff; | |
7991 | ioarcb->cmd_pkt.cdb[8] = | |
7992 | (sizeof(u32) * hrrq->size) & 0xff; | |
7993 | ||
7994 | if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) | |
56d6aa33 | 7995 | ioarcb->cmd_pkt.cdb[9] = |
7996 | ioa_cfg->identify_hrrq_index; | |
1da177e4 | 7997 | |
05a6538a | 7998 | if (ioa_cfg->sis64) { |
7999 | ioarcb->cmd_pkt.cdb[10] = | |
8000 | ((u64) hrrq->host_rrq_dma >> 56) & 0xff; | |
8001 | ioarcb->cmd_pkt.cdb[11] = | |
8002 | ((u64) hrrq->host_rrq_dma >> 48) & 0xff; | |
8003 | ioarcb->cmd_pkt.cdb[12] = | |
8004 | ((u64) hrrq->host_rrq_dma >> 40) & 0xff; | |
8005 | ioarcb->cmd_pkt.cdb[13] = | |
8006 | ((u64) hrrq->host_rrq_dma >> 32) & 0xff; | |
8007 | } | |
8008 | ||
8009 | if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) | |
56d6aa33 | 8010 | ioarcb->cmd_pkt.cdb[14] = |
8011 | ioa_cfg->identify_hrrq_index; | |
05a6538a | 8012 | |
8013 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
8014 | IPR_INTERNAL_TIMEOUT); | |
8015 | ||
56d6aa33 | 8016 | if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) |
8017 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; | |
05a6538a | 8018 | |
8019 | LEAVE; | |
8020 | return IPR_RC_JOB_RETURN; | |
05a6538a | 8021 | } |
8022 | ||
1da177e4 | 8023 | LEAVE; |
05a6538a | 8024 | return IPR_RC_JOB_CONTINUE; |
1da177e4 LT |
8025 | } |
8026 | ||
8027 | /** | |
8028 | * ipr_reset_timer_done - Adapter reset timer function | |
8029 | * @ipr_cmd: ipr command struct | |
8030 | * | |
8031 | * Description: This function is used in adapter reset processing | |
8032 | * for timing events. If the reset_cmd pointer in the IOA | |
8033 | * config struct is not this adapter's we are doing nested | |
8034 | * resets and fail_all_ops will take care of freeing the | |
8035 | * command block. | |
8036 | * | |
8037 | * Return value: | |
8038 | * none | |
8039 | **/ | |
8040 | static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) | |
8041 | { | |
8042 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8043 | unsigned long lock_flags = 0; | |
8044 | ||
8045 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
8046 | ||
8047 | if (ioa_cfg->reset_cmd == ipr_cmd) { | |
8048 | list_del(&ipr_cmd->queue); | |
8049 | ipr_cmd->done(ipr_cmd); | |
8050 | } | |
8051 | ||
8052 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
8053 | } | |
8054 | ||
8055 | /** | |
8056 | * ipr_reset_start_timer - Start a timer for adapter reset job | |
8057 | * @ipr_cmd: ipr command struct | |
8058 | * @timeout: timeout value | |
8059 | * | |
8060 | * Description: This function is used in adapter reset processing | |
8061 | * for timing events. If the reset_cmd pointer in the IOA | |
8062 | * config struct is not this adapter's we are doing nested | |
8063 | * resets and fail_all_ops will take care of freeing the | |
8064 | * command block. | |
8065 | * | |
8066 | * Return value: | |
8067 | * none | |
8068 | **/ | |
8069 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, | |
8070 | unsigned long timeout) | |
8071 | { | |
05a6538a | 8072 | |
8073 | ENTER; | |
8074 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); | |
1da177e4 LT |
8075 | ipr_cmd->done = ipr_reset_ioa_job; |
8076 | ||
8077 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
8078 | ipr_cmd->timer.expires = jiffies + timeout; | |
8079 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; | |
8080 | add_timer(&ipr_cmd->timer); | |
8081 | } | |
8082 | ||
8083 | /** | |
8084 | * ipr_init_ioa_mem - Initialize ioa_cfg control block | |
8085 | * @ioa_cfg: ioa cfg struct | |
8086 | * | |
8087 | * Return value: | |
8088 | * nothing | |
8089 | **/ | |
8090 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) | |
8091 | { | |
05a6538a | 8092 | struct ipr_hrr_queue *hrrq; |
1da177e4 | 8093 | |
05a6538a | 8094 | for_each_hrrq(hrrq, ioa_cfg) { |
56d6aa33 | 8095 | spin_lock(&hrrq->_lock); |
05a6538a | 8096 | memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size); |
8097 | ||
8098 | /* Initialize Host RRQ pointers */ | |
8099 | hrrq->hrrq_start = hrrq->host_rrq; | |
8100 | hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1]; | |
8101 | hrrq->hrrq_curr = hrrq->hrrq_start; | |
8102 | hrrq->toggle_bit = 1; | |
56d6aa33 | 8103 | spin_unlock(&hrrq->_lock); |
05a6538a | 8104 | } |
56d6aa33 | 8105 | wmb(); |
05a6538a | 8106 | |
56d6aa33 | 8107 | ioa_cfg->identify_hrrq_index = 0; |
8108 | if (ioa_cfg->hrrq_num == 1) | |
8109 | atomic_set(&ioa_cfg->hrrq_index, 0); | |
8110 | else | |
8111 | atomic_set(&ioa_cfg->hrrq_index, 1); | |
1da177e4 LT |
8112 | |
8113 | /* Zero out config table */ | |
3e7ebdfa | 8114 | memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); |
1da177e4 LT |
8115 | } |
8116 | ||
214777ba WB |
8117 | /** |
8118 | * ipr_reset_next_stage - Process IPL stage change based on feedback register. | |
8119 | * @ipr_cmd: ipr command struct | |
8120 | * | |
8121 | * Return value: | |
8122 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
8123 | **/ | |
8124 | static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) | |
8125 | { | |
8126 | unsigned long stage, stage_time; | |
8127 | u32 feedback; | |
8128 | volatile u32 int_reg; | |
8129 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8130 | u64 maskval = 0; | |
8131 | ||
8132 | feedback = readl(ioa_cfg->regs.init_feedback_reg); | |
8133 | stage = feedback & IPR_IPL_INIT_STAGE_MASK; | |
8134 | stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; | |
8135 | ||
8136 | ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); | |
8137 | ||
8138 | /* sanity check the stage_time value */ | |
438b0331 WB |
8139 | if (stage_time == 0) |
8140 | stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; | |
8141 | else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) | |
214777ba WB |
8142 | stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; |
8143 | else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) | |
8144 | stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; | |
8145 | ||
8146 | if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { | |
8147 | writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); | |
8148 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
8149 | stage_time = ioa_cfg->transop_timeout; | |
8150 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; | |
8151 | } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { | |
1df79ca4 WB |
8152 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
8153 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
8154 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; | |
8155 | maskval = IPR_PCII_IPL_STAGE_CHANGE; | |
8156 | maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; | |
8157 | writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); | |
8158 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
8159 | return IPR_RC_JOB_CONTINUE; | |
8160 | } | |
214777ba WB |
8161 | } |
8162 | ||
8163 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
8164 | ipr_cmd->timer.expires = jiffies + stage_time * HZ; | |
8165 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; | |
8166 | ipr_cmd->done = ipr_reset_ioa_job; | |
8167 | add_timer(&ipr_cmd->timer); | |
05a6538a | 8168 | |
8169 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); | |
214777ba WB |
8170 | |
8171 | return IPR_RC_JOB_RETURN; | |
8172 | } | |
8173 | ||
1da177e4 LT |
8174 | /** |
8175 | * ipr_reset_enable_ioa - Enable the IOA following a reset. | |
8176 | * @ipr_cmd: ipr command struct | |
8177 | * | |
8178 | * This function reinitializes some control blocks and | |
8179 | * enables destructive diagnostics on the adapter. | |
8180 | * | |
8181 | * Return value: | |
8182 | * IPR_RC_JOB_RETURN | |
8183 | **/ | |
8184 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) | |
8185 | { | |
8186 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8187 | volatile u32 int_reg; | |
7be96900 | 8188 | volatile u64 maskval; |
56d6aa33 | 8189 | int i; |
1da177e4 LT |
8190 | |
8191 | ENTER; | |
214777ba | 8192 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
1da177e4 LT |
8193 | ipr_init_ioa_mem(ioa_cfg); |
8194 | ||
56d6aa33 | 8195 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8196 | spin_lock(&ioa_cfg->hrrq[i]._lock); | |
8197 | ioa_cfg->hrrq[i].allow_interrupts = 1; | |
8198 | spin_unlock(&ioa_cfg->hrrq[i]._lock); | |
8199 | } | |
8200 | wmb(); | |
8701f185 WB |
8201 | if (ioa_cfg->sis64) { |
8202 | /* Set the adapter to the correct endian mode. */ | |
8203 | writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); | |
8204 | int_reg = readl(ioa_cfg->regs.endian_swap_reg); | |
8205 | } | |
8206 | ||
7be96900 | 8207 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
1da177e4 LT |
8208 | |
8209 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
8210 | writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), | |
214777ba | 8211 | ioa_cfg->regs.clr_interrupt_mask_reg32); |
1da177e4 LT |
8212 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
8213 | return IPR_RC_JOB_CONTINUE; | |
8214 | } | |
8215 | ||
8216 | /* Enable destructive diagnostics on IOA */ | |
214777ba WB |
8217 | writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); |
8218 | ||
7be96900 WB |
8219 | if (ioa_cfg->sis64) { |
8220 | maskval = IPR_PCII_IPL_STAGE_CHANGE; | |
8221 | maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; | |
8222 | writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg); | |
8223 | } else | |
8224 | writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); | |
1da177e4 | 8225 | |
1da177e4 LT |
8226 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
8227 | ||
8228 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); | |
8229 | ||
214777ba WB |
8230 | if (ioa_cfg->sis64) { |
8231 | ipr_cmd->job_step = ipr_reset_next_stage; | |
8232 | return IPR_RC_JOB_CONTINUE; | |
8233 | } | |
8234 | ||
1da177e4 | 8235 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; |
5469cb5b | 8236 | ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); |
1da177e4 LT |
8237 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; |
8238 | ipr_cmd->done = ipr_reset_ioa_job; | |
8239 | add_timer(&ipr_cmd->timer); | |
05a6538a | 8240 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
1da177e4 LT |
8241 | |
8242 | LEAVE; | |
8243 | return IPR_RC_JOB_RETURN; | |
8244 | } | |
8245 | ||
8246 | /** | |
8247 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. | |
8248 | * @ipr_cmd: ipr command struct | |
8249 | * | |
8250 | * This function is invoked when an adapter dump has run out | |
8251 | * of processing time. | |
8252 | * | |
8253 | * Return value: | |
8254 | * IPR_RC_JOB_CONTINUE | |
8255 | **/ | |
8256 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) | |
8257 | { | |
8258 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8259 | ||
8260 | if (ioa_cfg->sdt_state == GET_DUMP) | |
41e9a696 BK |
8261 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
8262 | else if (ioa_cfg->sdt_state == READ_DUMP) | |
1da177e4 LT |
8263 | ioa_cfg->sdt_state = ABORT_DUMP; |
8264 | ||
4c647e90 | 8265 | ioa_cfg->dump_timeout = 1; |
1da177e4 LT |
8266 | ipr_cmd->job_step = ipr_reset_alert; |
8267 | ||
8268 | return IPR_RC_JOB_CONTINUE; | |
8269 | } | |
8270 | ||
8271 | /** | |
8272 | * ipr_unit_check_no_data - Log a unit check/no data error log | |
8273 | * @ioa_cfg: ioa config struct | |
8274 | * | |
8275 | * Logs an error indicating the adapter unit checked, but for some | |
8276 | * reason, we were unable to fetch the unit check buffer. | |
8277 | * | |
8278 | * Return value: | |
8279 | * nothing | |
8280 | **/ | |
8281 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) | |
8282 | { | |
8283 | ioa_cfg->errors_logged++; | |
8284 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); | |
8285 | } | |
8286 | ||
8287 | /** | |
8288 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA | |
8289 | * @ioa_cfg: ioa config struct | |
8290 | * | |
8291 | * Fetches the unit check buffer from the adapter by clocking the data | |
8292 | * through the mailbox register. | |
8293 | * | |
8294 | * Return value: | |
8295 | * nothing | |
8296 | **/ | |
8297 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) | |
8298 | { | |
8299 | unsigned long mailbox; | |
8300 | struct ipr_hostrcb *hostrcb; | |
8301 | struct ipr_uc_sdt sdt; | |
8302 | int rc, length; | |
65f56475 | 8303 | u32 ioasc; |
1da177e4 LT |
8304 | |
8305 | mailbox = readl(ioa_cfg->ioa_mailbox); | |
8306 | ||
dcbad00e | 8307 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { |
1da177e4 LT |
8308 | ipr_unit_check_no_data(ioa_cfg); |
8309 | return; | |
8310 | } | |
8311 | ||
8312 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); | |
8313 | rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, | |
8314 | (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); | |
8315 | ||
dcbad00e WB |
8316 | if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || |
8317 | ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && | |
8318 | (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { | |
1da177e4 LT |
8319 | ipr_unit_check_no_data(ioa_cfg); |
8320 | return; | |
8321 | } | |
8322 | ||
8323 | /* Find length of the first sdt entry (UC buffer) */ | |
dcbad00e WB |
8324 | if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) |
8325 | length = be32_to_cpu(sdt.entry[0].end_token); | |
8326 | else | |
8327 | length = (be32_to_cpu(sdt.entry[0].end_token) - | |
8328 | be32_to_cpu(sdt.entry[0].start_token)) & | |
8329 | IPR_FMT2_MBX_ADDR_MASK; | |
1da177e4 LT |
8330 | |
8331 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, | |
8332 | struct ipr_hostrcb, queue); | |
8333 | list_del(&hostrcb->queue); | |
8334 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); | |
8335 | ||
8336 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
dcbad00e | 8337 | be32_to_cpu(sdt.entry[0].start_token), |
1da177e4 LT |
8338 | (__be32 *)&hostrcb->hcam, |
8339 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); | |
8340 | ||
65f56475 | 8341 | if (!rc) { |
1da177e4 | 8342 | ipr_handle_log_data(ioa_cfg, hostrcb); |
4565e370 | 8343 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
65f56475 BK |
8344 | if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && |
8345 | ioa_cfg->sdt_state == GET_DUMP) | |
8346 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
8347 | } else | |
1da177e4 LT |
8348 | ipr_unit_check_no_data(ioa_cfg); |
8349 | ||
8350 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
8351 | } | |
8352 | ||
110def85 WB |
8353 | /** |
8354 | * ipr_reset_get_unit_check_job - Call to get the unit check buffer. | |
8355 | * @ipr_cmd: ipr command struct | |
8356 | * | |
8357 | * Description: This function will call to get the unit check buffer. | |
8358 | * | |
8359 | * Return value: | |
8360 | * IPR_RC_JOB_RETURN | |
8361 | **/ | |
8362 | static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) | |
8363 | { | |
8364 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8365 | ||
8366 | ENTER; | |
8367 | ioa_cfg->ioa_unit_checked = 0; | |
8368 | ipr_get_unit_check_buffer(ioa_cfg); | |
8369 | ipr_cmd->job_step = ipr_reset_alert; | |
8370 | ipr_reset_start_timer(ipr_cmd, 0); | |
8371 | ||
8372 | LEAVE; | |
8373 | return IPR_RC_JOB_RETURN; | |
8374 | } | |
8375 | ||
f41f1d99 GKB |
8376 | static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd) |
8377 | { | |
8378 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8379 | ||
8380 | ENTER; | |
8381 | ||
8382 | if (ioa_cfg->sdt_state != GET_DUMP) | |
8383 | return IPR_RC_JOB_RETURN; | |
8384 | ||
8385 | if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left || | |
8386 | (readl(ioa_cfg->regs.sense_interrupt_reg) & | |
8387 | IPR_PCII_MAILBOX_STABLE)) { | |
8388 | ||
8389 | if (!ipr_cmd->u.time_left) | |
8390 | dev_err(&ioa_cfg->pdev->dev, | |
8391 | "Timed out waiting for Mailbox register.\n"); | |
8392 | ||
8393 | ioa_cfg->sdt_state = READ_DUMP; | |
8394 | ioa_cfg->dump_timeout = 0; | |
8395 | if (ioa_cfg->sis64) | |
8396 | ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT); | |
8397 | else | |
8398 | ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT); | |
8399 | ipr_cmd->job_step = ipr_reset_wait_for_dump; | |
8400 | schedule_work(&ioa_cfg->work_q); | |
8401 | ||
8402 | } else { | |
8403 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; | |
8404 | ipr_reset_start_timer(ipr_cmd, | |
8405 | IPR_CHECK_FOR_RESET_TIMEOUT); | |
8406 | } | |
8407 | ||
8408 | LEAVE; | |
8409 | return IPR_RC_JOB_RETURN; | |
8410 | } | |
8411 | ||
1da177e4 LT |
8412 | /** |
8413 | * ipr_reset_restore_cfg_space - Restore PCI config space. | |
8414 | * @ipr_cmd: ipr command struct | |
8415 | * | |
8416 | * Description: This function restores the saved PCI config space of | |
8417 | * the adapter, fails all outstanding ops back to the callers, and | |
8418 | * fetches the dump/unit check if applicable to this reset. | |
8419 | * | |
8420 | * Return value: | |
8421 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
8422 | **/ | |
8423 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) | |
8424 | { | |
8425 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
630ad831 | 8426 | u32 int_reg; |
1da177e4 LT |
8427 | |
8428 | ENTER; | |
99c965dd | 8429 | ioa_cfg->pdev->state_saved = true; |
1d3c16a8 | 8430 | pci_restore_state(ioa_cfg->pdev); |
1da177e4 LT |
8431 | |
8432 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { | |
96d21f00 | 8433 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
1da177e4 LT |
8434 | return IPR_RC_JOB_CONTINUE; |
8435 | } | |
8436 | ||
8437 | ipr_fail_all_ops(ioa_cfg); | |
8438 | ||
8701f185 WB |
8439 | if (ioa_cfg->sis64) { |
8440 | /* Set the adapter to the correct endian mode. */ | |
8441 | writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); | |
8442 | int_reg = readl(ioa_cfg->regs.endian_swap_reg); | |
8443 | } | |
8444 | ||
1da177e4 | 8445 | if (ioa_cfg->ioa_unit_checked) { |
110def85 WB |
8446 | if (ioa_cfg->sis64) { |
8447 | ipr_cmd->job_step = ipr_reset_get_unit_check_job; | |
8448 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); | |
8449 | return IPR_RC_JOB_RETURN; | |
8450 | } else { | |
8451 | ioa_cfg->ioa_unit_checked = 0; | |
8452 | ipr_get_unit_check_buffer(ioa_cfg); | |
8453 | ipr_cmd->job_step = ipr_reset_alert; | |
8454 | ipr_reset_start_timer(ipr_cmd, 0); | |
8455 | return IPR_RC_JOB_RETURN; | |
8456 | } | |
1da177e4 LT |
8457 | } |
8458 | ||
8459 | if (ioa_cfg->in_ioa_bringdown) { | |
8460 | ipr_cmd->job_step = ipr_ioa_bringdown_done; | |
f41f1d99 GKB |
8461 | } else if (ioa_cfg->sdt_state == GET_DUMP) { |
8462 | ipr_cmd->job_step = ipr_dump_mailbox_wait; | |
8463 | ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX; | |
1da177e4 LT |
8464 | } else { |
8465 | ipr_cmd->job_step = ipr_reset_enable_ioa; | |
1da177e4 LT |
8466 | } |
8467 | ||
438b0331 | 8468 | LEAVE; |
1da177e4 LT |
8469 | return IPR_RC_JOB_CONTINUE; |
8470 | } | |
8471 | ||
e619e1a7 BK |
8472 | /** |
8473 | * ipr_reset_bist_done - BIST has completed on the adapter. | |
8474 | * @ipr_cmd: ipr command struct | |
8475 | * | |
8476 | * Description: Unblock config space and resume the reset process. | |
8477 | * | |
8478 | * Return value: | |
8479 | * IPR_RC_JOB_CONTINUE | |
8480 | **/ | |
8481 | static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) | |
8482 | { | |
fb51ccbf JK |
8483 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8484 | ||
e619e1a7 | 8485 | ENTER; |
fb51ccbf JK |
8486 | if (ioa_cfg->cfg_locked) |
8487 | pci_cfg_access_unlock(ioa_cfg->pdev); | |
8488 | ioa_cfg->cfg_locked = 0; | |
e619e1a7 BK |
8489 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; |
8490 | LEAVE; | |
8491 | return IPR_RC_JOB_CONTINUE; | |
8492 | } | |
8493 | ||
1da177e4 LT |
8494 | /** |
8495 | * ipr_reset_start_bist - Run BIST on the adapter. | |
8496 | * @ipr_cmd: ipr command struct | |
8497 | * | |
8498 | * Description: This function runs BIST on the adapter, then delays 2 seconds. | |
8499 | * | |
8500 | * Return value: | |
8501 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
8502 | **/ | |
8503 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) | |
8504 | { | |
8505 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
cb237ef7 | 8506 | int rc = PCIBIOS_SUCCESSFUL; |
1da177e4 LT |
8507 | |
8508 | ENTER; | |
cb237ef7 WB |
8509 | if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) |
8510 | writel(IPR_UPROCI_SIS64_START_BIST, | |
8511 | ioa_cfg->regs.set_uproc_interrupt_reg32); | |
8512 | else | |
8513 | rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); | |
8514 | ||
8515 | if (rc == PCIBIOS_SUCCESSFUL) { | |
e619e1a7 | 8516 | ipr_cmd->job_step = ipr_reset_bist_done; |
1da177e4 LT |
8517 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
8518 | rc = IPR_RC_JOB_RETURN; | |
cb237ef7 | 8519 | } else { |
fb51ccbf JK |
8520 | if (ioa_cfg->cfg_locked) |
8521 | pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev); | |
8522 | ioa_cfg->cfg_locked = 0; | |
cb237ef7 WB |
8523 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
8524 | rc = IPR_RC_JOB_CONTINUE; | |
1da177e4 LT |
8525 | } |
8526 | ||
8527 | LEAVE; | |
8528 | return rc; | |
8529 | } | |
8530 | ||
463fc696 BK |
8531 | /** |
8532 | * ipr_reset_slot_reset_done - Clear PCI reset to the adapter | |
8533 | * @ipr_cmd: ipr command struct | |
8534 | * | |
8535 | * Description: This clears PCI reset to the adapter and delays two seconds. | |
8536 | * | |
8537 | * Return value: | |
8538 | * IPR_RC_JOB_RETURN | |
8539 | **/ | |
8540 | static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) | |
8541 | { | |
8542 | ENTER; | |
463fc696 BK |
8543 | ipr_cmd->job_step = ipr_reset_bist_done; |
8544 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); | |
8545 | LEAVE; | |
8546 | return IPR_RC_JOB_RETURN; | |
8547 | } | |
8548 | ||
2796ca5e BK |
8549 | /** |
8550 | * ipr_reset_reset_work - Pulse a PCIe fundamental reset | |
8551 | * @work: work struct | |
8552 | * | |
8553 | * Description: This pulses warm reset to a slot. | |
8554 | * | |
8555 | **/ | |
8556 | static void ipr_reset_reset_work(struct work_struct *work) | |
8557 | { | |
8558 | struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work); | |
8559 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8560 | struct pci_dev *pdev = ioa_cfg->pdev; | |
8561 | unsigned long lock_flags = 0; | |
8562 | ||
8563 | ENTER; | |
8564 | pci_set_pcie_reset_state(pdev, pcie_warm_reset); | |
8565 | msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT)); | |
8566 | pci_set_pcie_reset_state(pdev, pcie_deassert_reset); | |
8567 | ||
8568 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
8569 | if (ioa_cfg->reset_cmd == ipr_cmd) | |
8570 | ipr_reset_ioa_job(ipr_cmd); | |
8571 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
8572 | LEAVE; | |
8573 | } | |
8574 | ||
463fc696 BK |
8575 | /** |
8576 | * ipr_reset_slot_reset - Reset the PCI slot of the adapter. | |
8577 | * @ipr_cmd: ipr command struct | |
8578 | * | |
8579 | * Description: This asserts PCI reset to the adapter. | |
8580 | * | |
8581 | * Return value: | |
8582 | * IPR_RC_JOB_RETURN | |
8583 | **/ | |
8584 | static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) | |
8585 | { | |
8586 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
463fc696 BK |
8587 | |
8588 | ENTER; | |
2796ca5e BK |
8589 | INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work); |
8590 | queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work); | |
463fc696 | 8591 | ipr_cmd->job_step = ipr_reset_slot_reset_done; |
463fc696 BK |
8592 | LEAVE; |
8593 | return IPR_RC_JOB_RETURN; | |
8594 | } | |
8595 | ||
fb51ccbf JK |
8596 | /** |
8597 | * ipr_reset_block_config_access_wait - Wait for permission to block config access | |
8598 | * @ipr_cmd: ipr command struct | |
8599 | * | |
8600 | * Description: This attempts to block config access to the IOA. | |
8601 | * | |
8602 | * Return value: | |
8603 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
8604 | **/ | |
8605 | static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd) | |
8606 | { | |
8607 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8608 | int rc = IPR_RC_JOB_CONTINUE; | |
8609 | ||
8610 | if (pci_cfg_access_trylock(ioa_cfg->pdev)) { | |
8611 | ioa_cfg->cfg_locked = 1; | |
8612 | ipr_cmd->job_step = ioa_cfg->reset; | |
8613 | } else { | |
8614 | if (ipr_cmd->u.time_left) { | |
8615 | rc = IPR_RC_JOB_RETURN; | |
8616 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; | |
8617 | ipr_reset_start_timer(ipr_cmd, | |
8618 | IPR_CHECK_FOR_RESET_TIMEOUT); | |
8619 | } else { | |
8620 | ipr_cmd->job_step = ioa_cfg->reset; | |
8621 | dev_err(&ioa_cfg->pdev->dev, | |
8622 | "Timed out waiting to lock config access. Resetting anyway.\n"); | |
8623 | } | |
8624 | } | |
8625 | ||
8626 | return rc; | |
8627 | } | |
8628 | ||
8629 | /** | |
8630 | * ipr_reset_block_config_access - Block config access to the IOA | |
8631 | * @ipr_cmd: ipr command struct | |
8632 | * | |
8633 | * Description: This attempts to block config access to the IOA | |
8634 | * | |
8635 | * Return value: | |
8636 | * IPR_RC_JOB_CONTINUE | |
8637 | **/ | |
8638 | static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd) | |
8639 | { | |
8640 | ipr_cmd->ioa_cfg->cfg_locked = 0; | |
8641 | ipr_cmd->job_step = ipr_reset_block_config_access_wait; | |
8642 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; | |
8643 | return IPR_RC_JOB_CONTINUE; | |
8644 | } | |
8645 | ||
1da177e4 LT |
8646 | /** |
8647 | * ipr_reset_allowed - Query whether or not IOA can be reset | |
8648 | * @ioa_cfg: ioa config struct | |
8649 | * | |
8650 | * Return value: | |
8651 | * 0 if reset not allowed / non-zero if reset is allowed | |
8652 | **/ | |
8653 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) | |
8654 | { | |
8655 | volatile u32 temp_reg; | |
8656 | ||
8657 | temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
8658 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); | |
8659 | } | |
8660 | ||
8661 | /** | |
8662 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. | |
8663 | * @ipr_cmd: ipr command struct | |
8664 | * | |
8665 | * Description: This function waits for adapter permission to run BIST, | |
8666 | * then runs BIST. If the adapter does not give permission after a | |
8667 | * reasonable time, we will reset the adapter anyway. The impact of | |
8668 | * resetting the adapter without warning the adapter is the risk of | |
8669 | * losing the persistent error log on the adapter. If the adapter is | |
8670 | * reset while it is writing to the flash on the adapter, the flash | |
8671 | * segment will have bad ECC and be zeroed. | |
8672 | * | |
8673 | * Return value: | |
8674 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
8675 | **/ | |
8676 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) | |
8677 | { | |
8678 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8679 | int rc = IPR_RC_JOB_RETURN; | |
8680 | ||
8681 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { | |
8682 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; | |
8683 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
8684 | } else { | |
fb51ccbf | 8685 | ipr_cmd->job_step = ipr_reset_block_config_access; |
1da177e4 LT |
8686 | rc = IPR_RC_JOB_CONTINUE; |
8687 | } | |
8688 | ||
8689 | return rc; | |
8690 | } | |
8691 | ||
8692 | /** | |
8701f185 | 8693 | * ipr_reset_alert - Alert the adapter of a pending reset |
1da177e4 LT |
8694 | * @ipr_cmd: ipr command struct |
8695 | * | |
8696 | * Description: This function alerts the adapter that it will be reset. | |
8697 | * If memory space is not currently enabled, proceed directly | |
8698 | * to running BIST on the adapter. The timer must always be started | |
8699 | * so we guarantee we do not run BIST from ipr_isr. | |
8700 | * | |
8701 | * Return value: | |
8702 | * IPR_RC_JOB_RETURN | |
8703 | **/ | |
8704 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) | |
8705 | { | |
8706 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8707 | u16 cmd_reg; | |
8708 | int rc; | |
8709 | ||
8710 | ENTER; | |
8711 | rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); | |
8712 | ||
8713 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { | |
8714 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
214777ba | 8715 | writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); |
1da177e4 LT |
8716 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; |
8717 | } else { | |
fb51ccbf | 8718 | ipr_cmd->job_step = ipr_reset_block_config_access; |
1da177e4 LT |
8719 | } |
8720 | ||
8721 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; | |
8722 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
8723 | ||
8724 | LEAVE; | |
8725 | return IPR_RC_JOB_RETURN; | |
8726 | } | |
8727 | ||
4fdd7c7a BK |
8728 | /** |
8729 | * ipr_reset_quiesce_done - Complete IOA disconnect | |
8730 | * @ipr_cmd: ipr command struct | |
8731 | * | |
8732 | * Description: Freeze the adapter to complete quiesce processing | |
8733 | * | |
8734 | * Return value: | |
8735 | * IPR_RC_JOB_CONTINUE | |
8736 | **/ | |
8737 | static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd) | |
8738 | { | |
8739 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8740 | ||
8741 | ENTER; | |
8742 | ipr_cmd->job_step = ipr_ioa_bringdown_done; | |
8743 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); | |
8744 | LEAVE; | |
8745 | return IPR_RC_JOB_CONTINUE; | |
8746 | } | |
8747 | ||
8748 | /** | |
8749 | * ipr_reset_cancel_hcam_done - Check for outstanding commands | |
8750 | * @ipr_cmd: ipr command struct | |
8751 | * | |
8752 | * Description: Ensure nothing is outstanding to the IOA and | |
8753 | * proceed with IOA disconnect. Otherwise reset the IOA. | |
8754 | * | |
8755 | * Return value: | |
8756 | * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE | |
8757 | **/ | |
8758 | static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd) | |
8759 | { | |
8760 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8761 | struct ipr_cmnd *loop_cmd; | |
8762 | struct ipr_hrr_queue *hrrq; | |
8763 | int rc = IPR_RC_JOB_CONTINUE; | |
8764 | int count = 0; | |
8765 | ||
8766 | ENTER; | |
8767 | ipr_cmd->job_step = ipr_reset_quiesce_done; | |
8768 | ||
8769 | for_each_hrrq(hrrq, ioa_cfg) { | |
8770 | spin_lock(&hrrq->_lock); | |
8771 | list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) { | |
8772 | count++; | |
8773 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
8774 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); | |
8775 | rc = IPR_RC_JOB_RETURN; | |
8776 | break; | |
8777 | } | |
8778 | spin_unlock(&hrrq->_lock); | |
8779 | ||
8780 | if (count) | |
8781 | break; | |
8782 | } | |
8783 | ||
8784 | LEAVE; | |
8785 | return rc; | |
8786 | } | |
8787 | ||
8788 | /** | |
8789 | * ipr_reset_cancel_hcam - Cancel outstanding HCAMs | |
8790 | * @ipr_cmd: ipr command struct | |
8791 | * | |
8792 | * Description: Cancel any oustanding HCAMs to the IOA. | |
8793 | * | |
8794 | * Return value: | |
8795 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
8796 | **/ | |
8797 | static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd) | |
8798 | { | |
8799 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8800 | int rc = IPR_RC_JOB_CONTINUE; | |
8801 | struct ipr_cmd_pkt *cmd_pkt; | |
8802 | struct ipr_cmnd *hcam_cmd; | |
8803 | struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ]; | |
8804 | ||
8805 | ENTER; | |
8806 | ipr_cmd->job_step = ipr_reset_cancel_hcam_done; | |
8807 | ||
8808 | if (!hrrq->ioa_is_dead) { | |
8809 | if (!list_empty(&ioa_cfg->hostrcb_pending_q)) { | |
8810 | list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) { | |
8811 | if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC) | |
8812 | continue; | |
8813 | ||
8814 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
8815 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
8816 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
8817 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
8818 | cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST; | |
8819 | cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB; | |
8820 | cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff; | |
8821 | cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff; | |
8822 | cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff; | |
8823 | cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff; | |
8824 | cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff; | |
8825 | cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff; | |
8826 | cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff; | |
8827 | cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff; | |
8828 | ||
8829 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
8830 | IPR_CANCEL_TIMEOUT); | |
8831 | ||
8832 | rc = IPR_RC_JOB_RETURN; | |
8833 | ipr_cmd->job_step = ipr_reset_cancel_hcam; | |
8834 | break; | |
8835 | } | |
8836 | } | |
8837 | } else | |
8838 | ipr_cmd->job_step = ipr_reset_alert; | |
8839 | ||
8840 | LEAVE; | |
8841 | return rc; | |
8842 | } | |
8843 | ||
1da177e4 LT |
8844 | /** |
8845 | * ipr_reset_ucode_download_done - Microcode download completion | |
8846 | * @ipr_cmd: ipr command struct | |
8847 | * | |
8848 | * Description: This function unmaps the microcode download buffer. | |
8849 | * | |
8850 | * Return value: | |
8851 | * IPR_RC_JOB_CONTINUE | |
8852 | **/ | |
8853 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) | |
8854 | { | |
8855 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8856 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
8857 | ||
d73341bf | 8858 | dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist, |
1da177e4 LT |
8859 | sglist->num_sg, DMA_TO_DEVICE); |
8860 | ||
8861 | ipr_cmd->job_step = ipr_reset_alert; | |
8862 | return IPR_RC_JOB_CONTINUE; | |
8863 | } | |
8864 | ||
8865 | /** | |
8866 | * ipr_reset_ucode_download - Download microcode to the adapter | |
8867 | * @ipr_cmd: ipr command struct | |
8868 | * | |
8869 | * Description: This function checks to see if it there is microcode | |
8870 | * to download to the adapter. If there is, a download is performed. | |
8871 | * | |
8872 | * Return value: | |
8873 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
8874 | **/ | |
8875 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) | |
8876 | { | |
8877 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8878 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
8879 | ||
8880 | ENTER; | |
8881 | ipr_cmd->job_step = ipr_reset_alert; | |
8882 | ||
8883 | if (!sglist) | |
8884 | return IPR_RC_JOB_CONTINUE; | |
8885 | ||
8886 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
8887 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
8888 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; | |
8889 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; | |
8890 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; | |
8891 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; | |
8892 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; | |
8893 | ||
a32c055f WB |
8894 | if (ioa_cfg->sis64) |
8895 | ipr_build_ucode_ioadl64(ipr_cmd, sglist); | |
8896 | else | |
8897 | ipr_build_ucode_ioadl(ipr_cmd, sglist); | |
1da177e4 LT |
8898 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
8899 | ||
8900 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
8901 | IPR_WRITE_BUFFER_TIMEOUT); | |
8902 | ||
8903 | LEAVE; | |
8904 | return IPR_RC_JOB_RETURN; | |
8905 | } | |
8906 | ||
8907 | /** | |
8908 | * ipr_reset_shutdown_ioa - Shutdown the adapter | |
8909 | * @ipr_cmd: ipr command struct | |
8910 | * | |
8911 | * Description: This function issues an adapter shutdown of the | |
8912 | * specified type to the specified adapter as part of the | |
8913 | * adapter reset job. | |
8914 | * | |
8915 | * Return value: | |
8916 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
8917 | **/ | |
8918 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) | |
8919 | { | |
8920 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8921 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; | |
8922 | unsigned long timeout; | |
8923 | int rc = IPR_RC_JOB_CONTINUE; | |
8924 | ||
8925 | ENTER; | |
4fdd7c7a BK |
8926 | if (shutdown_type == IPR_SHUTDOWN_QUIESCE) |
8927 | ipr_cmd->job_step = ipr_reset_cancel_hcam; | |
8928 | else if (shutdown_type != IPR_SHUTDOWN_NONE && | |
56d6aa33 | 8929 | !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
1da177e4 LT |
8930 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
8931 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
8932 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
8933 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; | |
8934 | ||
ac09c349 BK |
8935 | if (shutdown_type == IPR_SHUTDOWN_NORMAL) |
8936 | timeout = IPR_SHUTDOWN_TIMEOUT; | |
1da177e4 LT |
8937 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) |
8938 | timeout = IPR_INTERNAL_TIMEOUT; | |
ac09c349 BK |
8939 | else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
8940 | timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; | |
1da177e4 | 8941 | else |
ac09c349 | 8942 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; |
1da177e4 LT |
8943 | |
8944 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); | |
8945 | ||
8946 | rc = IPR_RC_JOB_RETURN; | |
8947 | ipr_cmd->job_step = ipr_reset_ucode_download; | |
8948 | } else | |
8949 | ipr_cmd->job_step = ipr_reset_alert; | |
8950 | ||
8951 | LEAVE; | |
8952 | return rc; | |
8953 | } | |
8954 | ||
8955 | /** | |
8956 | * ipr_reset_ioa_job - Adapter reset job | |
8957 | * @ipr_cmd: ipr command struct | |
8958 | * | |
8959 | * Description: This function is the job router for the adapter reset job. | |
8960 | * | |
8961 | * Return value: | |
8962 | * none | |
8963 | **/ | |
8964 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) | |
8965 | { | |
8966 | u32 rc, ioasc; | |
1da177e4 LT |
8967 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8968 | ||
8969 | do { | |
96d21f00 | 8970 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
8971 | |
8972 | if (ioa_cfg->reset_cmd != ipr_cmd) { | |
8973 | /* | |
8974 | * We are doing nested adapter resets and this is | |
8975 | * not the current reset job. | |
8976 | */ | |
05a6538a | 8977 | list_add_tail(&ipr_cmd->queue, |
8978 | &ipr_cmd->hrrq->hrrq_free_q); | |
1da177e4 LT |
8979 | return; |
8980 | } | |
8981 | ||
8982 | if (IPR_IOASC_SENSE_KEY(ioasc)) { | |
dfed823e BK |
8983 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
8984 | if (rc == IPR_RC_JOB_RETURN) | |
8985 | return; | |
1da177e4 LT |
8986 | } |
8987 | ||
8988 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
dfed823e | 8989 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
1da177e4 | 8990 | rc = ipr_cmd->job_step(ipr_cmd); |
203fa3fe | 8991 | } while (rc == IPR_RC_JOB_CONTINUE); |
1da177e4 LT |
8992 | } |
8993 | ||
8994 | /** | |
8995 | * _ipr_initiate_ioa_reset - Initiate an adapter reset | |
8996 | * @ioa_cfg: ioa config struct | |
8997 | * @job_step: first job step of reset job | |
8998 | * @shutdown_type: shutdown type | |
8999 | * | |
9000 | * Description: This function will initiate the reset of the given adapter | |
9001 | * starting at the selected job step. | |
9002 | * If the caller needs to wait on the completion of the reset, | |
9003 | * the caller must sleep on the reset_wait_q. | |
9004 | * | |
9005 | * Return value: | |
9006 | * none | |
9007 | **/ | |
9008 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
9009 | int (*job_step) (struct ipr_cmnd *), | |
9010 | enum ipr_shutdown_type shutdown_type) | |
9011 | { | |
9012 | struct ipr_cmnd *ipr_cmd; | |
56d6aa33 | 9013 | int i; |
1da177e4 LT |
9014 | |
9015 | ioa_cfg->in_reset_reload = 1; | |
56d6aa33 | 9016 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
9017 | spin_lock(&ioa_cfg->hrrq[i]._lock); | |
9018 | ioa_cfg->hrrq[i].allow_cmds = 0; | |
9019 | spin_unlock(&ioa_cfg->hrrq[i]._lock); | |
9020 | } | |
9021 | wmb(); | |
bfae7820 BK |
9022 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) |
9023 | scsi_block_requests(ioa_cfg->host); | |
1da177e4 LT |
9024 | |
9025 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
9026 | ioa_cfg->reset_cmd = ipr_cmd; | |
9027 | ipr_cmd->job_step = job_step; | |
9028 | ipr_cmd->u.shutdown_type = shutdown_type; | |
9029 | ||
9030 | ipr_reset_ioa_job(ipr_cmd); | |
9031 | } | |
9032 | ||
9033 | /** | |
9034 | * ipr_initiate_ioa_reset - Initiate an adapter reset | |
9035 | * @ioa_cfg: ioa config struct | |
9036 | * @shutdown_type: shutdown type | |
9037 | * | |
9038 | * Description: This function will initiate the reset of the given adapter. | |
9039 | * If the caller needs to wait on the completion of the reset, | |
9040 | * the caller must sleep on the reset_wait_q. | |
9041 | * | |
9042 | * Return value: | |
9043 | * none | |
9044 | **/ | |
9045 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
9046 | enum ipr_shutdown_type shutdown_type) | |
9047 | { | |
56d6aa33 | 9048 | int i; |
9049 | ||
9050 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) | |
1da177e4 LT |
9051 | return; |
9052 | ||
41e9a696 BK |
9053 | if (ioa_cfg->in_reset_reload) { |
9054 | if (ioa_cfg->sdt_state == GET_DUMP) | |
9055 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
9056 | else if (ioa_cfg->sdt_state == READ_DUMP) | |
9057 | ioa_cfg->sdt_state = ABORT_DUMP; | |
9058 | } | |
1da177e4 LT |
9059 | |
9060 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { | |
9061 | dev_err(&ioa_cfg->pdev->dev, | |
9062 | "IOA taken offline - error recovery failed\n"); | |
9063 | ||
9064 | ioa_cfg->reset_retries = 0; | |
56d6aa33 | 9065 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
9066 | spin_lock(&ioa_cfg->hrrq[i]._lock); | |
9067 | ioa_cfg->hrrq[i].ioa_is_dead = 1; | |
9068 | spin_unlock(&ioa_cfg->hrrq[i]._lock); | |
9069 | } | |
9070 | wmb(); | |
1da177e4 LT |
9071 | |
9072 | if (ioa_cfg->in_ioa_bringdown) { | |
9073 | ioa_cfg->reset_cmd = NULL; | |
9074 | ioa_cfg->in_reset_reload = 0; | |
9075 | ipr_fail_all_ops(ioa_cfg); | |
9076 | wake_up_all(&ioa_cfg->reset_wait_q); | |
9077 | ||
bfae7820 BK |
9078 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
9079 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
9080 | scsi_unblock_requests(ioa_cfg->host); | |
9081 | spin_lock_irq(ioa_cfg->host->host_lock); | |
9082 | } | |
1da177e4 LT |
9083 | return; |
9084 | } else { | |
9085 | ioa_cfg->in_ioa_bringdown = 1; | |
9086 | shutdown_type = IPR_SHUTDOWN_NONE; | |
9087 | } | |
9088 | } | |
9089 | ||
9090 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, | |
9091 | shutdown_type); | |
9092 | } | |
9093 | ||
f8a88b19 LV |
9094 | /** |
9095 | * ipr_reset_freeze - Hold off all I/O activity | |
9096 | * @ipr_cmd: ipr command struct | |
9097 | * | |
9098 | * Description: If the PCI slot is frozen, hold off all I/O | |
9099 | * activity; then, as soon as the slot is available again, | |
9100 | * initiate an adapter reset. | |
9101 | */ | |
9102 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) | |
9103 | { | |
56d6aa33 | 9104 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
9105 | int i; | |
9106 | ||
f8a88b19 | 9107 | /* Disallow new interrupts, avoid loop */ |
56d6aa33 | 9108 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
9109 | spin_lock(&ioa_cfg->hrrq[i]._lock); | |
9110 | ioa_cfg->hrrq[i].allow_interrupts = 0; | |
9111 | spin_unlock(&ioa_cfg->hrrq[i]._lock); | |
9112 | } | |
9113 | wmb(); | |
05a6538a | 9114 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
f8a88b19 LV |
9115 | ipr_cmd->done = ipr_reset_ioa_job; |
9116 | return IPR_RC_JOB_RETURN; | |
9117 | } | |
9118 | ||
6270e593 BK |
9119 | /** |
9120 | * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled | |
9121 | * @pdev: PCI device struct | |
9122 | * | |
9123 | * Description: This routine is called to tell us that the MMIO | |
9124 | * access to the IOA has been restored | |
9125 | */ | |
9126 | static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev) | |
9127 | { | |
9128 | unsigned long flags = 0; | |
9129 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
9130 | ||
9131 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
9132 | if (!ioa_cfg->probe_done) | |
9133 | pci_save_state(pdev); | |
9134 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
9135 | return PCI_ERS_RESULT_NEED_RESET; | |
9136 | } | |
9137 | ||
f8a88b19 LV |
9138 | /** |
9139 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. | |
9140 | * @pdev: PCI device struct | |
9141 | * | |
9142 | * Description: This routine is called to tell us that the PCI bus | |
9143 | * is down. Can't do anything here, except put the device driver | |
9144 | * into a holding pattern, waiting for the PCI bus to come back. | |
9145 | */ | |
9146 | static void ipr_pci_frozen(struct pci_dev *pdev) | |
9147 | { | |
9148 | unsigned long flags = 0; | |
9149 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
9150 | ||
9151 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6270e593 BK |
9152 | if (ioa_cfg->probe_done) |
9153 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); | |
f8a88b19 LV |
9154 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
9155 | } | |
9156 | ||
9157 | /** | |
9158 | * ipr_pci_slot_reset - Called when PCI slot has been reset. | |
9159 | * @pdev: PCI device struct | |
9160 | * | |
9161 | * Description: This routine is called by the pci error recovery | |
9162 | * code after the PCI slot has been reset, just before we | |
9163 | * should resume normal operations. | |
9164 | */ | |
9165 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) | |
9166 | { | |
9167 | unsigned long flags = 0; | |
9168 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
9169 | ||
9170 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6270e593 BK |
9171 | if (ioa_cfg->probe_done) { |
9172 | if (ioa_cfg->needs_warm_reset) | |
9173 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
9174 | else | |
9175 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, | |
9176 | IPR_SHUTDOWN_NONE); | |
9177 | } else | |
9178 | wake_up_all(&ioa_cfg->eeh_wait_q); | |
f8a88b19 LV |
9179 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
9180 | return PCI_ERS_RESULT_RECOVERED; | |
9181 | } | |
9182 | ||
9183 | /** | |
9184 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. | |
9185 | * @pdev: PCI device struct | |
9186 | * | |
9187 | * Description: This routine is called when the PCI bus has | |
9188 | * permanently failed. | |
9189 | */ | |
9190 | static void ipr_pci_perm_failure(struct pci_dev *pdev) | |
9191 | { | |
9192 | unsigned long flags = 0; | |
9193 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
56d6aa33 | 9194 | int i; |
f8a88b19 LV |
9195 | |
9196 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
6270e593 BK |
9197 | if (ioa_cfg->probe_done) { |
9198 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
9199 | ioa_cfg->sdt_state = ABORT_DUMP; | |
9200 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1; | |
9201 | ioa_cfg->in_ioa_bringdown = 1; | |
9202 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { | |
9203 | spin_lock(&ioa_cfg->hrrq[i]._lock); | |
9204 | ioa_cfg->hrrq[i].allow_cmds = 0; | |
9205 | spin_unlock(&ioa_cfg->hrrq[i]._lock); | |
9206 | } | |
9207 | wmb(); | |
9208 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
9209 | } else | |
9210 | wake_up_all(&ioa_cfg->eeh_wait_q); | |
f8a88b19 LV |
9211 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
9212 | } | |
9213 | ||
9214 | /** | |
9215 | * ipr_pci_error_detected - Called when a PCI error is detected. | |
9216 | * @pdev: PCI device struct | |
9217 | * @state: PCI channel state | |
9218 | * | |
9219 | * Description: Called when a PCI error is detected. | |
9220 | * | |
9221 | * Return value: | |
9222 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT | |
9223 | */ | |
9224 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, | |
9225 | pci_channel_state_t state) | |
9226 | { | |
9227 | switch (state) { | |
9228 | case pci_channel_io_frozen: | |
9229 | ipr_pci_frozen(pdev); | |
6270e593 | 9230 | return PCI_ERS_RESULT_CAN_RECOVER; |
f8a88b19 LV |
9231 | case pci_channel_io_perm_failure: |
9232 | ipr_pci_perm_failure(pdev); | |
9233 | return PCI_ERS_RESULT_DISCONNECT; | |
9234 | break; | |
9235 | default: | |
9236 | break; | |
9237 | } | |
9238 | return PCI_ERS_RESULT_NEED_RESET; | |
9239 | } | |
9240 | ||
1da177e4 LT |
9241 | /** |
9242 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) | |
9243 | * @ioa_cfg: ioa cfg struct | |
9244 | * | |
9245 | * Description: This is the second phase of adapter intialization | |
9246 | * This function takes care of initilizing the adapter to the point | |
9247 | * where it can accept new commands. | |
9248 | ||
9249 | * Return value: | |
b1c11812 | 9250 | * 0 on success / -EIO on failure |
1da177e4 | 9251 | **/ |
6f039790 | 9252 | static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) |
1da177e4 LT |
9253 | { |
9254 | int rc = 0; | |
9255 | unsigned long host_lock_flags = 0; | |
9256 | ||
9257 | ENTER; | |
9258 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
9259 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); | |
6270e593 | 9260 | ioa_cfg->probe_done = 1; |
ce155cce BK |
9261 | if (ioa_cfg->needs_hard_reset) { |
9262 | ioa_cfg->needs_hard_reset = 0; | |
9263 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
9264 | } else | |
9265 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, | |
9266 | IPR_SHUTDOWN_NONE); | |
1da177e4 | 9267 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
1da177e4 LT |
9268 | |
9269 | LEAVE; | |
9270 | return rc; | |
9271 | } | |
9272 | ||
9273 | /** | |
9274 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter | |
9275 | * @ioa_cfg: ioa config struct | |
9276 | * | |
9277 | * Return value: | |
9278 | * none | |
9279 | **/ | |
9280 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
9281 | { | |
9282 | int i; | |
9283 | ||
a65e8f12 BK |
9284 | if (ioa_cfg->ipr_cmnd_list) { |
9285 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
9286 | if (ioa_cfg->ipr_cmnd_list[i]) | |
9287 | dma_pool_free(ioa_cfg->ipr_cmd_pool, | |
9288 | ioa_cfg->ipr_cmnd_list[i], | |
9289 | ioa_cfg->ipr_cmnd_list_dma[i]); | |
1da177e4 | 9290 | |
a65e8f12 BK |
9291 | ioa_cfg->ipr_cmnd_list[i] = NULL; |
9292 | } | |
1da177e4 LT |
9293 | } |
9294 | ||
9295 | if (ioa_cfg->ipr_cmd_pool) | |
d73341bf | 9296 | dma_pool_destroy(ioa_cfg->ipr_cmd_pool); |
1da177e4 | 9297 | |
89aad428 BK |
9298 | kfree(ioa_cfg->ipr_cmnd_list); |
9299 | kfree(ioa_cfg->ipr_cmnd_list_dma); | |
9300 | ioa_cfg->ipr_cmnd_list = NULL; | |
9301 | ioa_cfg->ipr_cmnd_list_dma = NULL; | |
1da177e4 LT |
9302 | ioa_cfg->ipr_cmd_pool = NULL; |
9303 | } | |
9304 | ||
9305 | /** | |
9306 | * ipr_free_mem - Frees memory allocated for an adapter | |
9307 | * @ioa_cfg: ioa cfg struct | |
9308 | * | |
9309 | * Return value: | |
9310 | * nothing | |
9311 | **/ | |
9312 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) | |
9313 | { | |
9314 | int i; | |
9315 | ||
9316 | kfree(ioa_cfg->res_entries); | |
d73341bf AB |
9317 | dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs), |
9318 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
1da177e4 | 9319 | ipr_free_cmd_blks(ioa_cfg); |
05a6538a | 9320 | |
9321 | for (i = 0; i < ioa_cfg->hrrq_num; i++) | |
d73341bf AB |
9322 | dma_free_coherent(&ioa_cfg->pdev->dev, |
9323 | sizeof(u32) * ioa_cfg->hrrq[i].size, | |
9324 | ioa_cfg->hrrq[i].host_rrq, | |
9325 | ioa_cfg->hrrq[i].host_rrq_dma); | |
05a6538a | 9326 | |
d73341bf AB |
9327 | dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size, |
9328 | ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma); | |
1da177e4 LT |
9329 | |
9330 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
d73341bf AB |
9331 | dma_free_coherent(&ioa_cfg->pdev->dev, |
9332 | sizeof(struct ipr_hostrcb), | |
9333 | ioa_cfg->hostrcb[i], | |
9334 | ioa_cfg->hostrcb_dma[i]); | |
1da177e4 LT |
9335 | } |
9336 | ||
9337 | ipr_free_dump(ioa_cfg); | |
1da177e4 LT |
9338 | kfree(ioa_cfg->trace); |
9339 | } | |
9340 | ||
9341 | /** | |
2796ca5e BK |
9342 | * ipr_free_irqs - Free all allocated IRQs for the adapter. |
9343 | * @ioa_cfg: ipr cfg struct | |
1da177e4 | 9344 | * |
2796ca5e | 9345 | * This function frees all allocated IRQs for the |
1da177e4 LT |
9346 | * specified adapter. |
9347 | * | |
9348 | * Return value: | |
9349 | * none | |
9350 | **/ | |
2796ca5e | 9351 | static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg) |
1da177e4 LT |
9352 | { |
9353 | struct pci_dev *pdev = ioa_cfg->pdev; | |
9354 | ||
05a6538a | 9355 | if (ioa_cfg->intr_flag == IPR_USE_MSI || |
9356 | ioa_cfg->intr_flag == IPR_USE_MSIX) { | |
9357 | int i; | |
9358 | for (i = 0; i < ioa_cfg->nvectors; i++) | |
9359 | free_irq(ioa_cfg->vectors_info[i].vec, | |
2796ca5e | 9360 | &ioa_cfg->hrrq[i]); |
05a6538a | 9361 | } else |
9362 | free_irq(pdev->irq, &ioa_cfg->hrrq[0]); | |
9363 | ||
56d6aa33 | 9364 | if (ioa_cfg->intr_flag == IPR_USE_MSI) { |
05a6538a | 9365 | pci_disable_msi(pdev); |
56d6aa33 | 9366 | ioa_cfg->intr_flag &= ~IPR_USE_MSI; |
9367 | } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) { | |
05a6538a | 9368 | pci_disable_msix(pdev); |
56d6aa33 | 9369 | ioa_cfg->intr_flag &= ~IPR_USE_MSIX; |
9370 | } | |
2796ca5e | 9371 | } |
05a6538a | 9372 | |
2796ca5e BK |
9373 | /** |
9374 | * ipr_free_all_resources - Free all allocated resources for an adapter. | |
9375 | * @ipr_cmd: ipr command struct | |
9376 | * | |
9377 | * This function frees all allocated resources for the | |
9378 | * specified adapter. | |
9379 | * | |
9380 | * Return value: | |
9381 | * none | |
9382 | **/ | |
9383 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) | |
9384 | { | |
9385 | struct pci_dev *pdev = ioa_cfg->pdev; | |
05a6538a | 9386 | |
2796ca5e BK |
9387 | ENTER; |
9388 | ipr_free_irqs(ioa_cfg); | |
9389 | if (ioa_cfg->reset_work_q) | |
9390 | destroy_workqueue(ioa_cfg->reset_work_q); | |
1da177e4 LT |
9391 | iounmap(ioa_cfg->hdw_dma_regs); |
9392 | pci_release_regions(pdev); | |
9393 | ipr_free_mem(ioa_cfg); | |
9394 | scsi_host_put(ioa_cfg->host); | |
9395 | pci_disable_device(pdev); | |
9396 | LEAVE; | |
9397 | } | |
9398 | ||
9399 | /** | |
9400 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter | |
9401 | * @ioa_cfg: ioa config struct | |
9402 | * | |
9403 | * Return value: | |
9404 | * 0 on success / -ENOMEM on allocation failure | |
9405 | **/ | |
6f039790 | 9406 | static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) |
1da177e4 LT |
9407 | { |
9408 | struct ipr_cmnd *ipr_cmd; | |
9409 | struct ipr_ioarcb *ioarcb; | |
9410 | dma_addr_t dma_addr; | |
05a6538a | 9411 | int i, entries_each_hrrq, hrrq_id = 0; |
1da177e4 | 9412 | |
d73341bf | 9413 | ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev, |
203fa3fe | 9414 | sizeof(struct ipr_cmnd), 512, 0); |
1da177e4 LT |
9415 | |
9416 | if (!ioa_cfg->ipr_cmd_pool) | |
9417 | return -ENOMEM; | |
9418 | ||
89aad428 BK |
9419 | ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL); |
9420 | ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL); | |
9421 | ||
9422 | if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) { | |
9423 | ipr_free_cmd_blks(ioa_cfg); | |
9424 | return -ENOMEM; | |
9425 | } | |
9426 | ||
05a6538a | 9427 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
9428 | if (ioa_cfg->hrrq_num > 1) { | |
9429 | if (i == 0) { | |
9430 | entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS; | |
9431 | ioa_cfg->hrrq[i].min_cmd_id = 0; | |
9432 | ioa_cfg->hrrq[i].max_cmd_id = | |
9433 | (entries_each_hrrq - 1); | |
9434 | } else { | |
9435 | entries_each_hrrq = | |
9436 | IPR_NUM_BASE_CMD_BLKS/ | |
9437 | (ioa_cfg->hrrq_num - 1); | |
9438 | ioa_cfg->hrrq[i].min_cmd_id = | |
9439 | IPR_NUM_INTERNAL_CMD_BLKS + | |
9440 | (i - 1) * entries_each_hrrq; | |
9441 | ioa_cfg->hrrq[i].max_cmd_id = | |
9442 | (IPR_NUM_INTERNAL_CMD_BLKS + | |
9443 | i * entries_each_hrrq - 1); | |
9444 | } | |
9445 | } else { | |
9446 | entries_each_hrrq = IPR_NUM_CMD_BLKS; | |
9447 | ioa_cfg->hrrq[i].min_cmd_id = 0; | |
9448 | ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1); | |
9449 | } | |
9450 | ioa_cfg->hrrq[i].size = entries_each_hrrq; | |
9451 | } | |
9452 | ||
9453 | BUG_ON(ioa_cfg->hrrq_num == 0); | |
9454 | ||
9455 | i = IPR_NUM_CMD_BLKS - | |
9456 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1; | |
9457 | if (i > 0) { | |
9458 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i; | |
9459 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i; | |
9460 | } | |
9461 | ||
1da177e4 | 9462 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { |
d73341bf | 9463 | ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); |
1da177e4 LT |
9464 | |
9465 | if (!ipr_cmd) { | |
9466 | ipr_free_cmd_blks(ioa_cfg); | |
9467 | return -ENOMEM; | |
9468 | } | |
9469 | ||
9470 | memset(ipr_cmd, 0, sizeof(*ipr_cmd)); | |
9471 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; | |
9472 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; | |
9473 | ||
9474 | ioarcb = &ipr_cmd->ioarcb; | |
a32c055f WB |
9475 | ipr_cmd->dma_addr = dma_addr; |
9476 | if (ioa_cfg->sis64) | |
9477 | ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); | |
9478 | else | |
9479 | ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); | |
9480 | ||
1da177e4 | 9481 | ioarcb->host_response_handle = cpu_to_be32(i << 2); |
a32c055f WB |
9482 | if (ioa_cfg->sis64) { |
9483 | ioarcb->u.sis64_addr_data.data_ioadl_addr = | |
9484 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); | |
9485 | ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = | |
96d21f00 | 9486 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); |
a32c055f WB |
9487 | } else { |
9488 | ioarcb->write_ioadl_addr = | |
9489 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); | |
9490 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
9491 | ioarcb->ioasa_host_pci_addr = | |
96d21f00 | 9492 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); |
a32c055f | 9493 | } |
1da177e4 LT |
9494 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); |
9495 | ipr_cmd->cmd_index = i; | |
9496 | ipr_cmd->ioa_cfg = ioa_cfg; | |
9497 | ipr_cmd->sense_buffer_dma = dma_addr + | |
9498 | offsetof(struct ipr_cmnd, sense_buffer); | |
9499 | ||
05a6538a | 9500 | ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id; |
9501 | ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id]; | |
9502 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); | |
9503 | if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id) | |
9504 | hrrq_id++; | |
1da177e4 LT |
9505 | } |
9506 | ||
9507 | return 0; | |
9508 | } | |
9509 | ||
9510 | /** | |
9511 | * ipr_alloc_mem - Allocate memory for an adapter | |
9512 | * @ioa_cfg: ioa config struct | |
9513 | * | |
9514 | * Return value: | |
9515 | * 0 on success / non-zero for error | |
9516 | **/ | |
6f039790 | 9517 | static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) |
1da177e4 LT |
9518 | { |
9519 | struct pci_dev *pdev = ioa_cfg->pdev; | |
9520 | int i, rc = -ENOMEM; | |
9521 | ||
9522 | ENTER; | |
0bc42e35 | 9523 | ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * |
3e7ebdfa | 9524 | ioa_cfg->max_devs_supported, GFP_KERNEL); |
1da177e4 LT |
9525 | |
9526 | if (!ioa_cfg->res_entries) | |
9527 | goto out; | |
9528 | ||
3e7ebdfa | 9529 | for (i = 0; i < ioa_cfg->max_devs_supported; i++) { |
1da177e4 | 9530 | list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); |
3e7ebdfa WB |
9531 | ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; |
9532 | } | |
1da177e4 | 9533 | |
d73341bf AB |
9534 | ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev, |
9535 | sizeof(struct ipr_misc_cbs), | |
9536 | &ioa_cfg->vpd_cbs_dma, | |
9537 | GFP_KERNEL); | |
1da177e4 LT |
9538 | |
9539 | if (!ioa_cfg->vpd_cbs) | |
9540 | goto out_free_res_entries; | |
9541 | ||
9542 | if (ipr_alloc_cmd_blks(ioa_cfg)) | |
9543 | goto out_free_vpd_cbs; | |
9544 | ||
05a6538a | 9545 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
d73341bf | 9546 | ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev, |
05a6538a | 9547 | sizeof(u32) * ioa_cfg->hrrq[i].size, |
d73341bf AB |
9548 | &ioa_cfg->hrrq[i].host_rrq_dma, |
9549 | GFP_KERNEL); | |
05a6538a | 9550 | |
9551 | if (!ioa_cfg->hrrq[i].host_rrq) { | |
9552 | while (--i > 0) | |
d73341bf | 9553 | dma_free_coherent(&pdev->dev, |
05a6538a | 9554 | sizeof(u32) * ioa_cfg->hrrq[i].size, |
9555 | ioa_cfg->hrrq[i].host_rrq, | |
9556 | ioa_cfg->hrrq[i].host_rrq_dma); | |
9557 | goto out_ipr_free_cmd_blocks; | |
9558 | } | |
9559 | ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg; | |
9560 | } | |
1da177e4 | 9561 | |
d73341bf AB |
9562 | ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev, |
9563 | ioa_cfg->cfg_table_size, | |
9564 | &ioa_cfg->cfg_table_dma, | |
9565 | GFP_KERNEL); | |
1da177e4 | 9566 | |
3e7ebdfa | 9567 | if (!ioa_cfg->u.cfg_table) |
1da177e4 LT |
9568 | goto out_free_host_rrq; |
9569 | ||
9570 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
d73341bf AB |
9571 | ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev, |
9572 | sizeof(struct ipr_hostrcb), | |
9573 | &ioa_cfg->hostrcb_dma[i], | |
9574 | GFP_KERNEL); | |
1da177e4 LT |
9575 | |
9576 | if (!ioa_cfg->hostrcb[i]) | |
9577 | goto out_free_hostrcb_dma; | |
9578 | ||
9579 | ioa_cfg->hostrcb[i]->hostrcb_dma = | |
9580 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); | |
49dc6a18 | 9581 | ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; |
1da177e4 LT |
9582 | list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); |
9583 | } | |
9584 | ||
0bc42e35 | 9585 | ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * |
1da177e4 LT |
9586 | IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); |
9587 | ||
9588 | if (!ioa_cfg->trace) | |
9589 | goto out_free_hostrcb_dma; | |
9590 | ||
1da177e4 LT |
9591 | rc = 0; |
9592 | out: | |
9593 | LEAVE; | |
9594 | return rc; | |
9595 | ||
9596 | out_free_hostrcb_dma: | |
9597 | while (i-- > 0) { | |
d73341bf AB |
9598 | dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb), |
9599 | ioa_cfg->hostrcb[i], | |
9600 | ioa_cfg->hostrcb_dma[i]); | |
1da177e4 | 9601 | } |
d73341bf AB |
9602 | dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size, |
9603 | ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma); | |
1da177e4 | 9604 | out_free_host_rrq: |
05a6538a | 9605 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
d73341bf AB |
9606 | dma_free_coherent(&pdev->dev, |
9607 | sizeof(u32) * ioa_cfg->hrrq[i].size, | |
9608 | ioa_cfg->hrrq[i].host_rrq, | |
9609 | ioa_cfg->hrrq[i].host_rrq_dma); | |
05a6538a | 9610 | } |
1da177e4 LT |
9611 | out_ipr_free_cmd_blocks: |
9612 | ipr_free_cmd_blks(ioa_cfg); | |
9613 | out_free_vpd_cbs: | |
d73341bf AB |
9614 | dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs), |
9615 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
1da177e4 LT |
9616 | out_free_res_entries: |
9617 | kfree(ioa_cfg->res_entries); | |
9618 | goto out; | |
9619 | } | |
9620 | ||
9621 | /** | |
9622 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values | |
9623 | * @ioa_cfg: ioa config struct | |
9624 | * | |
9625 | * Return value: | |
9626 | * none | |
9627 | **/ | |
6f039790 | 9628 | static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) |
1da177e4 LT |
9629 | { |
9630 | int i; | |
9631 | ||
9632 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
9633 | ioa_cfg->bus_attr[i].bus = i; | |
9634 | ioa_cfg->bus_attr[i].qas_enabled = 0; | |
9635 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; | |
9636 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) | |
9637 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; | |
9638 | else | |
9639 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; | |
9640 | } | |
9641 | } | |
9642 | ||
6270e593 BK |
9643 | /** |
9644 | * ipr_init_regs - Initialize IOA registers | |
9645 | * @ioa_cfg: ioa config struct | |
9646 | * | |
9647 | * Return value: | |
9648 | * none | |
9649 | **/ | |
9650 | static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg) | |
9651 | { | |
9652 | const struct ipr_interrupt_offsets *p; | |
9653 | struct ipr_interrupts *t; | |
9654 | void __iomem *base; | |
9655 | ||
9656 | p = &ioa_cfg->chip_cfg->regs; | |
9657 | t = &ioa_cfg->regs; | |
9658 | base = ioa_cfg->hdw_dma_regs; | |
9659 | ||
9660 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; | |
9661 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; | |
9662 | t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; | |
9663 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; | |
9664 | t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; | |
9665 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; | |
9666 | t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; | |
9667 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; | |
9668 | t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; | |
9669 | t->ioarrin_reg = base + p->ioarrin_reg; | |
9670 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; | |
9671 | t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; | |
9672 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; | |
9673 | t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; | |
9674 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; | |
9675 | t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; | |
9676 | ||
9677 | if (ioa_cfg->sis64) { | |
9678 | t->init_feedback_reg = base + p->init_feedback_reg; | |
9679 | t->dump_addr_reg = base + p->dump_addr_reg; | |
9680 | t->dump_data_reg = base + p->dump_data_reg; | |
9681 | t->endian_swap_reg = base + p->endian_swap_reg; | |
9682 | } | |
9683 | } | |
9684 | ||
1da177e4 LT |
9685 | /** |
9686 | * ipr_init_ioa_cfg - Initialize IOA config struct | |
9687 | * @ioa_cfg: ioa config struct | |
9688 | * @host: scsi host struct | |
9689 | * @pdev: PCI dev struct | |
9690 | * | |
9691 | * Return value: | |
9692 | * none | |
9693 | **/ | |
6f039790 GKH |
9694 | static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, |
9695 | struct Scsi_Host *host, struct pci_dev *pdev) | |
1da177e4 | 9696 | { |
6270e593 | 9697 | int i; |
1da177e4 LT |
9698 | |
9699 | ioa_cfg->host = host; | |
9700 | ioa_cfg->pdev = pdev; | |
9701 | ioa_cfg->log_level = ipr_log_level; | |
3d1d0da6 | 9702 | ioa_cfg->doorbell = IPR_DOORBELL; |
1da177e4 LT |
9703 | sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); |
9704 | sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); | |
1da177e4 LT |
9705 | sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); |
9706 | sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); | |
9707 | sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); | |
9708 | sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); | |
9709 | ||
1da177e4 LT |
9710 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); |
9711 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); | |
9712 | INIT_LIST_HEAD(&ioa_cfg->free_res_q); | |
9713 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); | |
c4028958 | 9714 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); |
1da177e4 | 9715 | init_waitqueue_head(&ioa_cfg->reset_wait_q); |
95fecd90 | 9716 | init_waitqueue_head(&ioa_cfg->msi_wait_q); |
6270e593 | 9717 | init_waitqueue_head(&ioa_cfg->eeh_wait_q); |
1da177e4 LT |
9718 | ioa_cfg->sdt_state = INACTIVE; |
9719 | ||
9720 | ipr_initialize_bus_attr(ioa_cfg); | |
3e7ebdfa | 9721 | ioa_cfg->max_devs_supported = ipr_max_devs; |
1da177e4 | 9722 | |
3e7ebdfa WB |
9723 | if (ioa_cfg->sis64) { |
9724 | host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; | |
9725 | host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; | |
9726 | if (ipr_max_devs > IPR_MAX_SIS64_DEVS) | |
9727 | ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; | |
6270e593 BK |
9728 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) |
9729 | + ((sizeof(struct ipr_config_table_entry64) | |
9730 | * ioa_cfg->max_devs_supported))); | |
3e7ebdfa WB |
9731 | } else { |
9732 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; | |
9733 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; | |
9734 | if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) | |
9735 | ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; | |
6270e593 BK |
9736 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) |
9737 | + ((sizeof(struct ipr_config_table_entry) | |
9738 | * ioa_cfg->max_devs_supported))); | |
3e7ebdfa | 9739 | } |
6270e593 | 9740 | |
f688f96d | 9741 | host->max_channel = IPR_VSET_BUS; |
1da177e4 LT |
9742 | host->unique_id = host->host_no; |
9743 | host->max_cmd_len = IPR_MAX_CDB_LEN; | |
89aad428 | 9744 | host->can_queue = ioa_cfg->max_cmds; |
1da177e4 LT |
9745 | pci_set_drvdata(pdev, ioa_cfg); |
9746 | ||
6270e593 BK |
9747 | for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) { |
9748 | INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q); | |
9749 | INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q); | |
9750 | spin_lock_init(&ioa_cfg->hrrq[i]._lock); | |
9751 | if (i == 0) | |
9752 | ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock; | |
9753 | else | |
9754 | ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock; | |
dcbad00e | 9755 | } |
1da177e4 LT |
9756 | } |
9757 | ||
9758 | /** | |
1be7bd82 | 9759 | * ipr_get_chip_info - Find adapter chip information |
1da177e4 LT |
9760 | * @dev_id: PCI device id struct |
9761 | * | |
9762 | * Return value: | |
1be7bd82 | 9763 | * ptr to chip information on success / NULL on failure |
1da177e4 | 9764 | **/ |
6f039790 | 9765 | static const struct ipr_chip_t * |
1be7bd82 | 9766 | ipr_get_chip_info(const struct pci_device_id *dev_id) |
1da177e4 LT |
9767 | { |
9768 | int i; | |
9769 | ||
1da177e4 LT |
9770 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) |
9771 | if (ipr_chip[i].vendor == dev_id->vendor && | |
9772 | ipr_chip[i].device == dev_id->device) | |
1be7bd82 | 9773 | return &ipr_chip[i]; |
1da177e4 LT |
9774 | return NULL; |
9775 | } | |
9776 | ||
6270e593 BK |
9777 | /** |
9778 | * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete | |
9779 | * during probe time | |
9780 | * @ioa_cfg: ioa config struct | |
9781 | * | |
9782 | * Return value: | |
9783 | * None | |
9784 | **/ | |
9785 | static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg) | |
9786 | { | |
9787 | struct pci_dev *pdev = ioa_cfg->pdev; | |
9788 | ||
9789 | if (pci_channel_offline(pdev)) { | |
9790 | wait_event_timeout(ioa_cfg->eeh_wait_q, | |
9791 | !pci_channel_offline(pdev), | |
9792 | IPR_PCI_ERROR_RECOVERY_TIMEOUT); | |
9793 | pci_restore_state(pdev); | |
9794 | } | |
9795 | } | |
9796 | ||
05a6538a | 9797 | static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg) |
9798 | { | |
9799 | struct msix_entry entries[IPR_MAX_MSIX_VECTORS]; | |
60e76b77 | 9800 | int i, vectors; |
05a6538a | 9801 | |
9802 | for (i = 0; i < ARRAY_SIZE(entries); ++i) | |
9803 | entries[i].entry = i; | |
9804 | ||
60e76b77 AG |
9805 | vectors = pci_enable_msix_range(ioa_cfg->pdev, |
9806 | entries, 1, ipr_number_of_msix); | |
9807 | if (vectors < 0) { | |
6270e593 | 9808 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
60e76b77 | 9809 | return vectors; |
05a6538a | 9810 | } |
9811 | ||
60e76b77 AG |
9812 | for (i = 0; i < vectors; i++) |
9813 | ioa_cfg->vectors_info[i].vec = entries[i].vector; | |
9814 | ioa_cfg->nvectors = vectors; | |
05a6538a | 9815 | |
60e76b77 | 9816 | return 0; |
05a6538a | 9817 | } |
9818 | ||
9819 | static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg) | |
9820 | { | |
60e76b77 | 9821 | int i, vectors; |
05a6538a | 9822 | |
60e76b77 AG |
9823 | vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix); |
9824 | if (vectors < 0) { | |
6270e593 | 9825 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
60e76b77 | 9826 | return vectors; |
05a6538a | 9827 | } |
9828 | ||
60e76b77 AG |
9829 | for (i = 0; i < vectors; i++) |
9830 | ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i; | |
9831 | ioa_cfg->nvectors = vectors; | |
05a6538a | 9832 | |
60e76b77 | 9833 | return 0; |
05a6538a | 9834 | } |
9835 | ||
9836 | static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg) | |
9837 | { | |
9838 | int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1; | |
9839 | ||
9840 | for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) { | |
9841 | snprintf(ioa_cfg->vectors_info[vec_idx].desc, n, | |
9842 | "host%d-%d", ioa_cfg->host->host_no, vec_idx); | |
9843 | ioa_cfg->vectors_info[vec_idx]. | |
9844 | desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0; | |
9845 | } | |
9846 | } | |
9847 | ||
9848 | static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg) | |
9849 | { | |
9850 | int i, rc; | |
9851 | ||
9852 | for (i = 1; i < ioa_cfg->nvectors; i++) { | |
9853 | rc = request_irq(ioa_cfg->vectors_info[i].vec, | |
9854 | ipr_isr_mhrrq, | |
9855 | 0, | |
9856 | ioa_cfg->vectors_info[i].desc, | |
9857 | &ioa_cfg->hrrq[i]); | |
9858 | if (rc) { | |
9859 | while (--i >= 0) | |
9860 | free_irq(ioa_cfg->vectors_info[i].vec, | |
9861 | &ioa_cfg->hrrq[i]); | |
9862 | return rc; | |
9863 | } | |
9864 | } | |
9865 | return 0; | |
9866 | } | |
9867 | ||
95fecd90 WB |
9868 | /** |
9869 | * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). | |
9870 | * @pdev: PCI device struct | |
9871 | * | |
9872 | * Description: Simply set the msi_received flag to 1 indicating that | |
9873 | * Message Signaled Interrupts are supported. | |
9874 | * | |
9875 | * Return value: | |
9876 | * 0 on success / non-zero on failure | |
9877 | **/ | |
6f039790 | 9878 | static irqreturn_t ipr_test_intr(int irq, void *devp) |
95fecd90 WB |
9879 | { |
9880 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; | |
9881 | unsigned long lock_flags = 0; | |
9882 | irqreturn_t rc = IRQ_HANDLED; | |
9883 | ||
05a6538a | 9884 | dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq); |
95fecd90 WB |
9885 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9886 | ||
9887 | ioa_cfg->msi_received = 1; | |
9888 | wake_up(&ioa_cfg->msi_wait_q); | |
9889 | ||
9890 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
9891 | return rc; | |
9892 | } | |
9893 | ||
9894 | /** | |
9895 | * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. | |
9896 | * @pdev: PCI device struct | |
9897 | * | |
60e76b77 | 9898 | * Description: The return value from pci_enable_msi_range() can not always be |
95fecd90 WB |
9899 | * trusted. This routine sets up and initiates a test interrupt to determine |
9900 | * if the interrupt is received via the ipr_test_intr() service routine. | |
9901 | * If the tests fails, the driver will fall back to LSI. | |
9902 | * | |
9903 | * Return value: | |
9904 | * 0 on success / non-zero on failure | |
9905 | **/ | |
6f039790 | 9906 | static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev) |
95fecd90 WB |
9907 | { |
9908 | int rc; | |
9909 | volatile u32 int_reg; | |
9910 | unsigned long lock_flags = 0; | |
9911 | ||
9912 | ENTER; | |
9913 | ||
9914 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
9915 | init_waitqueue_head(&ioa_cfg->msi_wait_q); | |
9916 | ioa_cfg->msi_received = 0; | |
9917 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); | |
214777ba | 9918 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); |
95fecd90 WB |
9919 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
9920 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
9921 | ||
f19799f4 | 9922 | if (ioa_cfg->intr_flag == IPR_USE_MSIX) |
9923 | rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg); | |
9924 | else | |
9925 | rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); | |
95fecd90 WB |
9926 | if (rc) { |
9927 | dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); | |
9928 | return rc; | |
9929 | } else if (ipr_debug) | |
9930 | dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); | |
9931 | ||
214777ba | 9932 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); |
95fecd90 WB |
9933 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
9934 | wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); | |
56d6aa33 | 9935 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
95fecd90 WB |
9936 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
9937 | ||
95fecd90 WB |
9938 | if (!ioa_cfg->msi_received) { |
9939 | /* MSI test failed */ | |
9940 | dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); | |
9941 | rc = -EOPNOTSUPP; | |
9942 | } else if (ipr_debug) | |
9943 | dev_info(&pdev->dev, "MSI test succeeded.\n"); | |
9944 | ||
9945 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
9946 | ||
f19799f4 | 9947 | if (ioa_cfg->intr_flag == IPR_USE_MSIX) |
9948 | free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg); | |
9949 | else | |
9950 | free_irq(pdev->irq, ioa_cfg); | |
95fecd90 WB |
9951 | |
9952 | LEAVE; | |
9953 | ||
9954 | return rc; | |
9955 | } | |
9956 | ||
05a6538a | 9957 | /* ipr_probe_ioa - Allocates memory and does first stage of initialization |
1da177e4 LT |
9958 | * @pdev: PCI device struct |
9959 | * @dev_id: PCI device id struct | |
9960 | * | |
9961 | * Return value: | |
9962 | * 0 on success / non-zero on failure | |
9963 | **/ | |
6f039790 GKH |
9964 | static int ipr_probe_ioa(struct pci_dev *pdev, |
9965 | const struct pci_device_id *dev_id) | |
1da177e4 LT |
9966 | { |
9967 | struct ipr_ioa_cfg *ioa_cfg; | |
9968 | struct Scsi_Host *host; | |
9969 | unsigned long ipr_regs_pci; | |
9970 | void __iomem *ipr_regs; | |
a2a65a3e | 9971 | int rc = PCIBIOS_SUCCESSFUL; |
473b1e8e | 9972 | volatile u32 mask, uproc, interrupts; |
feccada9 | 9973 | unsigned long lock_flags, driver_lock_flags; |
1da177e4 LT |
9974 | |
9975 | ENTER; | |
9976 | ||
1da177e4 | 9977 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); |
1da177e4 LT |
9978 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); |
9979 | ||
9980 | if (!host) { | |
9981 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); | |
9982 | rc = -ENOMEM; | |
6270e593 | 9983 | goto out; |
1da177e4 LT |
9984 | } |
9985 | ||
9986 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; | |
9987 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); | |
8d8e7d13 | 9988 | ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops); |
1da177e4 | 9989 | |
1be7bd82 | 9990 | ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); |
1da177e4 | 9991 | |
1be7bd82 | 9992 | if (!ioa_cfg->ipr_chip) { |
1da177e4 LT |
9993 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", |
9994 | dev_id->vendor, dev_id->device); | |
9995 | goto out_scsi_host_put; | |
9996 | } | |
9997 | ||
a32c055f WB |
9998 | /* set SIS 32 or SIS 64 */ |
9999 | ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; | |
1be7bd82 | 10000 | ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; |
7dd21308 | 10001 | ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr; |
89aad428 | 10002 | ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds; |
1be7bd82 | 10003 | |
5469cb5b BK |
10004 | if (ipr_transop_timeout) |
10005 | ioa_cfg->transop_timeout = ipr_transop_timeout; | |
10006 | else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) | |
10007 | ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; | |
10008 | else | |
10009 | ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; | |
10010 | ||
44c10138 | 10011 | ioa_cfg->revid = pdev->revision; |
463fc696 | 10012 | |
6270e593 BK |
10013 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); |
10014 | ||
1da177e4 LT |
10015 | ipr_regs_pci = pci_resource_start(pdev, 0); |
10016 | ||
10017 | rc = pci_request_regions(pdev, IPR_NAME); | |
10018 | if (rc < 0) { | |
10019 | dev_err(&pdev->dev, | |
10020 | "Couldn't register memory range of registers\n"); | |
10021 | goto out_scsi_host_put; | |
10022 | } | |
10023 | ||
6270e593 BK |
10024 | rc = pci_enable_device(pdev); |
10025 | ||
10026 | if (rc || pci_channel_offline(pdev)) { | |
10027 | if (pci_channel_offline(pdev)) { | |
10028 | ipr_wait_for_pci_err_recovery(ioa_cfg); | |
10029 | rc = pci_enable_device(pdev); | |
10030 | } | |
10031 | ||
10032 | if (rc) { | |
10033 | dev_err(&pdev->dev, "Cannot enable adapter\n"); | |
10034 | ipr_wait_for_pci_err_recovery(ioa_cfg); | |
10035 | goto out_release_regions; | |
10036 | } | |
10037 | } | |
10038 | ||
25729a7f | 10039 | ipr_regs = pci_ioremap_bar(pdev, 0); |
1da177e4 LT |
10040 | |
10041 | if (!ipr_regs) { | |
10042 | dev_err(&pdev->dev, | |
10043 | "Couldn't map memory range of registers\n"); | |
10044 | rc = -ENOMEM; | |
6270e593 | 10045 | goto out_disable; |
1da177e4 LT |
10046 | } |
10047 | ||
10048 | ioa_cfg->hdw_dma_regs = ipr_regs; | |
10049 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; | |
10050 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; | |
10051 | ||
6270e593 | 10052 | ipr_init_regs(ioa_cfg); |
1da177e4 | 10053 | |
a32c055f | 10054 | if (ioa_cfg->sis64) { |
869404cb | 10055 | rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
a32c055f | 10056 | if (rc < 0) { |
869404cb AB |
10057 | dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n"); |
10058 | rc = dma_set_mask_and_coherent(&pdev->dev, | |
10059 | DMA_BIT_MASK(32)); | |
a32c055f | 10060 | } |
a32c055f | 10061 | } else |
869404cb | 10062 | rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
a32c055f | 10063 | |
1da177e4 | 10064 | if (rc < 0) { |
869404cb | 10065 | dev_err(&pdev->dev, "Failed to set DMA mask\n"); |
1da177e4 LT |
10066 | goto cleanup_nomem; |
10067 | } | |
10068 | ||
10069 | rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, | |
10070 | ioa_cfg->chip_cfg->cache_line_size); | |
10071 | ||
10072 | if (rc != PCIBIOS_SUCCESSFUL) { | |
10073 | dev_err(&pdev->dev, "Write of cache line size failed\n"); | |
6270e593 | 10074 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
1da177e4 LT |
10075 | rc = -EIO; |
10076 | goto cleanup_nomem; | |
10077 | } | |
10078 | ||
6270e593 BK |
10079 | /* Issue MMIO read to ensure card is not in EEH */ |
10080 | interrupts = readl(ioa_cfg->regs.sense_interrupt_reg); | |
10081 | ipr_wait_for_pci_err_recovery(ioa_cfg); | |
10082 | ||
05a6538a | 10083 | if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) { |
10084 | dev_err(&pdev->dev, "The max number of MSIX is %d\n", | |
10085 | IPR_MAX_MSIX_VECTORS); | |
10086 | ipr_number_of_msix = IPR_MAX_MSIX_VECTORS; | |
10087 | } | |
10088 | ||
10089 | if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && | |
56d6aa33 | 10090 | ipr_enable_msix(ioa_cfg) == 0) |
05a6538a | 10091 | ioa_cfg->intr_flag = IPR_USE_MSIX; |
10092 | else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && | |
56d6aa33 | 10093 | ipr_enable_msi(ioa_cfg) == 0) |
05a6538a | 10094 | ioa_cfg->intr_flag = IPR_USE_MSI; |
10095 | else { | |
10096 | ioa_cfg->intr_flag = IPR_USE_LSI; | |
54e430bb | 10097 | ioa_cfg->clear_isr = 1; |
05a6538a | 10098 | ioa_cfg->nvectors = 1; |
10099 | dev_info(&pdev->dev, "Cannot enable MSI.\n"); | |
10100 | } | |
10101 | ||
6270e593 BK |
10102 | pci_set_master(pdev); |
10103 | ||
10104 | if (pci_channel_offline(pdev)) { | |
10105 | ipr_wait_for_pci_err_recovery(ioa_cfg); | |
10106 | pci_set_master(pdev); | |
10107 | if (pci_channel_offline(pdev)) { | |
10108 | rc = -EIO; | |
10109 | goto out_msi_disable; | |
10110 | } | |
10111 | } | |
10112 | ||
05a6538a | 10113 | if (ioa_cfg->intr_flag == IPR_USE_MSI || |
10114 | ioa_cfg->intr_flag == IPR_USE_MSIX) { | |
95fecd90 | 10115 | rc = ipr_test_msi(ioa_cfg, pdev); |
05a6538a | 10116 | if (rc == -EOPNOTSUPP) { |
6270e593 | 10117 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
05a6538a | 10118 | if (ioa_cfg->intr_flag == IPR_USE_MSI) { |
10119 | ioa_cfg->intr_flag &= ~IPR_USE_MSI; | |
10120 | pci_disable_msi(pdev); | |
10121 | } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) { | |
10122 | ioa_cfg->intr_flag &= ~IPR_USE_MSIX; | |
10123 | pci_disable_msix(pdev); | |
10124 | } | |
10125 | ||
10126 | ioa_cfg->intr_flag = IPR_USE_LSI; | |
10127 | ioa_cfg->nvectors = 1; | |
10128 | } | |
95fecd90 WB |
10129 | else if (rc) |
10130 | goto out_msi_disable; | |
05a6538a | 10131 | else { |
10132 | if (ioa_cfg->intr_flag == IPR_USE_MSI) | |
10133 | dev_info(&pdev->dev, | |
10134 | "Request for %d MSIs succeeded with starting IRQ: %d\n", | |
10135 | ioa_cfg->nvectors, pdev->irq); | |
10136 | else if (ioa_cfg->intr_flag == IPR_USE_MSIX) | |
10137 | dev_info(&pdev->dev, | |
10138 | "Request for %d MSIXs succeeded.", | |
10139 | ioa_cfg->nvectors); | |
10140 | } | |
10141 | } | |
10142 | ||
10143 | ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors, | |
10144 | (unsigned int)num_online_cpus(), | |
10145 | (unsigned int)IPR_MAX_HRRQ_NUM); | |
95fecd90 | 10146 | |
1da177e4 | 10147 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) |
f170c684 | 10148 | goto out_msi_disable; |
1da177e4 LT |
10149 | |
10150 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) | |
f170c684 | 10151 | goto out_msi_disable; |
1da177e4 LT |
10152 | |
10153 | rc = ipr_alloc_mem(ioa_cfg); | |
10154 | if (rc < 0) { | |
10155 | dev_err(&pdev->dev, | |
10156 | "Couldn't allocate enough memory for device driver!\n"); | |
f170c684 | 10157 | goto out_msi_disable; |
1da177e4 LT |
10158 | } |
10159 | ||
6270e593 BK |
10160 | /* Save away PCI config space for use following IOA reset */ |
10161 | rc = pci_save_state(pdev); | |
10162 | ||
10163 | if (rc != PCIBIOS_SUCCESSFUL) { | |
10164 | dev_err(&pdev->dev, "Failed to save PCI config space\n"); | |
10165 | rc = -EIO; | |
10166 | goto cleanup_nolog; | |
10167 | } | |
10168 | ||
ce155cce BK |
10169 | /* |
10170 | * If HRRQ updated interrupt is not masked, or reset alert is set, | |
10171 | * the card is in an unknown state and needs a hard reset | |
10172 | */ | |
214777ba WB |
10173 | mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); |
10174 | interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); | |
10175 | uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); | |
ce155cce BK |
10176 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) |
10177 | ioa_cfg->needs_hard_reset = 1; | |
5d7c20b7 | 10178 | if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices) |
473b1e8e BK |
10179 | ioa_cfg->needs_hard_reset = 1; |
10180 | if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) | |
10181 | ioa_cfg->ioa_unit_checked = 1; | |
ce155cce | 10182 | |
56d6aa33 | 10183 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
1da177e4 | 10184 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
56d6aa33 | 10185 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
1da177e4 | 10186 | |
05a6538a | 10187 | if (ioa_cfg->intr_flag == IPR_USE_MSI |
10188 | || ioa_cfg->intr_flag == IPR_USE_MSIX) { | |
10189 | name_msi_vectors(ioa_cfg); | |
10190 | rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr, | |
10191 | 0, | |
10192 | ioa_cfg->vectors_info[0].desc, | |
10193 | &ioa_cfg->hrrq[0]); | |
10194 | if (!rc) | |
10195 | rc = ipr_request_other_msi_irqs(ioa_cfg); | |
10196 | } else { | |
10197 | rc = request_irq(pdev->irq, ipr_isr, | |
10198 | IRQF_SHARED, | |
10199 | IPR_NAME, &ioa_cfg->hrrq[0]); | |
10200 | } | |
1da177e4 LT |
10201 | if (rc) { |
10202 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", | |
10203 | pdev->irq, rc); | |
10204 | goto cleanup_nolog; | |
10205 | } | |
10206 | ||
463fc696 BK |
10207 | if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || |
10208 | (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { | |
10209 | ioa_cfg->needs_warm_reset = 1; | |
10210 | ioa_cfg->reset = ipr_reset_slot_reset; | |
2796ca5e BK |
10211 | |
10212 | ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d", | |
10213 | WQ_MEM_RECLAIM, host->host_no); | |
10214 | ||
10215 | if (!ioa_cfg->reset_work_q) { | |
10216 | dev_err(&pdev->dev, "Couldn't register reset workqueue\n"); | |
10217 | goto out_free_irq; | |
10218 | } | |
463fc696 BK |
10219 | } else |
10220 | ioa_cfg->reset = ipr_reset_start_bist; | |
10221 | ||
feccada9 | 10222 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
1da177e4 | 10223 | list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); |
feccada9 | 10224 | spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); |
1da177e4 LT |
10225 | |
10226 | LEAVE; | |
10227 | out: | |
10228 | return rc; | |
10229 | ||
2796ca5e BK |
10230 | out_free_irq: |
10231 | ipr_free_irqs(ioa_cfg); | |
1da177e4 LT |
10232 | cleanup_nolog: |
10233 | ipr_free_mem(ioa_cfg); | |
95fecd90 | 10234 | out_msi_disable: |
6270e593 | 10235 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
05a6538a | 10236 | if (ioa_cfg->intr_flag == IPR_USE_MSI) |
10237 | pci_disable_msi(pdev); | |
10238 | else if (ioa_cfg->intr_flag == IPR_USE_MSIX) | |
10239 | pci_disable_msix(pdev); | |
f170c684 JL |
10240 | cleanup_nomem: |
10241 | iounmap(ipr_regs); | |
6270e593 BK |
10242 | out_disable: |
10243 | pci_disable_device(pdev); | |
1da177e4 LT |
10244 | out_release_regions: |
10245 | pci_release_regions(pdev); | |
10246 | out_scsi_host_put: | |
10247 | scsi_host_put(host); | |
1da177e4 LT |
10248 | goto out; |
10249 | } | |
10250 | ||
1da177e4 LT |
10251 | /** |
10252 | * ipr_initiate_ioa_bringdown - Bring down an adapter | |
10253 | * @ioa_cfg: ioa config struct | |
10254 | * @shutdown_type: shutdown type | |
10255 | * | |
10256 | * Description: This function will initiate bringing down the adapter. | |
10257 | * This consists of issuing an IOA shutdown to the adapter | |
10258 | * to flush the cache, and running BIST. | |
10259 | * If the caller needs to wait on the completion of the reset, | |
10260 | * the caller must sleep on the reset_wait_q. | |
10261 | * | |
10262 | * Return value: | |
10263 | * none | |
10264 | **/ | |
10265 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, | |
10266 | enum ipr_shutdown_type shutdown_type) | |
10267 | { | |
10268 | ENTER; | |
10269 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
10270 | ioa_cfg->sdt_state = ABORT_DUMP; | |
10271 | ioa_cfg->reset_retries = 0; | |
10272 | ioa_cfg->in_ioa_bringdown = 1; | |
10273 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
10274 | LEAVE; | |
10275 | } | |
10276 | ||
10277 | /** | |
10278 | * __ipr_remove - Remove a single adapter | |
10279 | * @pdev: pci device struct | |
10280 | * | |
10281 | * Adapter hot plug remove entry point. | |
10282 | * | |
10283 | * Return value: | |
10284 | * none | |
10285 | **/ | |
10286 | static void __ipr_remove(struct pci_dev *pdev) | |
10287 | { | |
10288 | unsigned long host_lock_flags = 0; | |
10289 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
bfae7820 | 10290 | int i; |
feccada9 | 10291 | unsigned long driver_lock_flags; |
1da177e4 LT |
10292 | ENTER; |
10293 | ||
10294 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
203fa3fe | 10295 | while (ioa_cfg->in_reset_reload) { |
970ea294 BK |
10296 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
10297 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
10298 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
10299 | } | |
10300 | ||
bfae7820 BK |
10301 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
10302 | spin_lock(&ioa_cfg->hrrq[i]._lock); | |
10303 | ioa_cfg->hrrq[i].removing_ioa = 1; | |
10304 | spin_unlock(&ioa_cfg->hrrq[i]._lock); | |
10305 | } | |
10306 | wmb(); | |
1da177e4 LT |
10307 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
10308 | ||
10309 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
10310 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
43829731 | 10311 | flush_work(&ioa_cfg->work_q); |
2796ca5e BK |
10312 | if (ioa_cfg->reset_work_q) |
10313 | flush_workqueue(ioa_cfg->reset_work_q); | |
9077a944 | 10314 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); |
1da177e4 LT |
10315 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
10316 | ||
feccada9 | 10317 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
1da177e4 | 10318 | list_del(&ioa_cfg->queue); |
feccada9 | 10319 | spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); |
1da177e4 LT |
10320 | |
10321 | if (ioa_cfg->sdt_state == ABORT_DUMP) | |
10322 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
10323 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
10324 | ||
10325 | ipr_free_all_resources(ioa_cfg); | |
10326 | ||
10327 | LEAVE; | |
10328 | } | |
10329 | ||
10330 | /** | |
10331 | * ipr_remove - IOA hot plug remove entry point | |
10332 | * @pdev: pci device struct | |
10333 | * | |
10334 | * Adapter hot plug remove entry point. | |
10335 | * | |
10336 | * Return value: | |
10337 | * none | |
10338 | **/ | |
6f039790 | 10339 | static void ipr_remove(struct pci_dev *pdev) |
1da177e4 LT |
10340 | { |
10341 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
10342 | ||
10343 | ENTER; | |
10344 | ||
ee959b00 | 10345 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 | 10346 | &ipr_trace_attr); |
ee959b00 | 10347 | ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 LT |
10348 | &ipr_dump_attr); |
10349 | scsi_remove_host(ioa_cfg->host); | |
10350 | ||
10351 | __ipr_remove(pdev); | |
10352 | ||
10353 | LEAVE; | |
10354 | } | |
10355 | ||
10356 | /** | |
10357 | * ipr_probe - Adapter hot plug add entry point | |
10358 | * | |
10359 | * Return value: | |
10360 | * 0 on success / non-zero on failure | |
10361 | **/ | |
6f039790 | 10362 | static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id) |
1da177e4 LT |
10363 | { |
10364 | struct ipr_ioa_cfg *ioa_cfg; | |
b53d124a | 10365 | int rc, i; |
1da177e4 LT |
10366 | |
10367 | rc = ipr_probe_ioa(pdev, dev_id); | |
10368 | ||
10369 | if (rc) | |
10370 | return rc; | |
10371 | ||
10372 | ioa_cfg = pci_get_drvdata(pdev); | |
10373 | rc = ipr_probe_ioa_part2(ioa_cfg); | |
10374 | ||
10375 | if (rc) { | |
10376 | __ipr_remove(pdev); | |
10377 | return rc; | |
10378 | } | |
10379 | ||
10380 | rc = scsi_add_host(ioa_cfg->host, &pdev->dev); | |
10381 | ||
10382 | if (rc) { | |
10383 | __ipr_remove(pdev); | |
10384 | return rc; | |
10385 | } | |
10386 | ||
ee959b00 | 10387 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 LT |
10388 | &ipr_trace_attr); |
10389 | ||
10390 | if (rc) { | |
10391 | scsi_remove_host(ioa_cfg->host); | |
10392 | __ipr_remove(pdev); | |
10393 | return rc; | |
10394 | } | |
10395 | ||
ee959b00 | 10396 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 LT |
10397 | &ipr_dump_attr); |
10398 | ||
10399 | if (rc) { | |
ee959b00 | 10400 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 LT |
10401 | &ipr_trace_attr); |
10402 | scsi_remove_host(ioa_cfg->host); | |
10403 | __ipr_remove(pdev); | |
10404 | return rc; | |
10405 | } | |
10406 | ||
10407 | scsi_scan_host(ioa_cfg->host); | |
b53d124a | 10408 | ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight; |
10409 | ||
89f8b33c | 10410 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
b53d124a | 10411 | for (i = 1; i < ioa_cfg->hrrq_num; i++) { |
511cbce2 | 10412 | irq_poll_init(&ioa_cfg->hrrq[i].iopoll, |
b53d124a | 10413 | ioa_cfg->iopoll_weight, ipr_iopoll); |
b53d124a | 10414 | } |
10415 | } | |
10416 | ||
1da177e4 LT |
10417 | schedule_work(&ioa_cfg->work_q); |
10418 | return 0; | |
10419 | } | |
10420 | ||
10421 | /** | |
10422 | * ipr_shutdown - Shutdown handler. | |
d18c3db5 | 10423 | * @pdev: pci device struct |
1da177e4 LT |
10424 | * |
10425 | * This function is invoked upon system shutdown/reboot. It will issue | |
10426 | * an adapter shutdown to the adapter to flush the write cache. | |
10427 | * | |
10428 | * Return value: | |
10429 | * none | |
10430 | **/ | |
d18c3db5 | 10431 | static void ipr_shutdown(struct pci_dev *pdev) |
1da177e4 | 10432 | { |
d18c3db5 | 10433 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
1da177e4 | 10434 | unsigned long lock_flags = 0; |
4fdd7c7a | 10435 | enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL; |
b53d124a | 10436 | int i; |
1da177e4 LT |
10437 | |
10438 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
89f8b33c | 10439 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
b53d124a | 10440 | ioa_cfg->iopoll_weight = 0; |
10441 | for (i = 1; i < ioa_cfg->hrrq_num; i++) | |
511cbce2 | 10442 | irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); |
b53d124a | 10443 | } |
10444 | ||
203fa3fe | 10445 | while (ioa_cfg->in_reset_reload) { |
970ea294 BK |
10446 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
10447 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
10448 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
10449 | } | |
10450 | ||
4fdd7c7a BK |
10451 | if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) |
10452 | shutdown_type = IPR_SHUTDOWN_QUIESCE; | |
10453 | ||
10454 | ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type); | |
1da177e4 LT |
10455 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
10456 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
4fdd7c7a | 10457 | if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) { |
2796ca5e | 10458 | ipr_free_irqs(ioa_cfg); |
4fdd7c7a BK |
10459 | pci_disable_device(ioa_cfg->pdev); |
10460 | } | |
1da177e4 LT |
10461 | } |
10462 | ||
6f039790 | 10463 | static struct pci_device_id ipr_pci_table[] = { |
1da177e4 | 10464 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 10465 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, |
1da177e4 | 10466 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 10467 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, |
1da177e4 | 10468 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 10469 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, |
1da177e4 | 10470 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 10471 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, |
1da177e4 | 10472 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6d84c944 | 10473 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, |
1da177e4 | 10474 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6d84c944 | 10475 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, |
1da177e4 | 10476 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6d84c944 | 10477 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, |
86f51436 | 10478 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
5469cb5b BK |
10479 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, |
10480 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
86f51436 | 10481 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
6d84c944 | 10482 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
86f51436 | 10483 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
22d2e402 BK |
10484 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
10485 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
60e7486b | 10486 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
5469cb5b BK |
10487 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
10488 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
86f51436 | 10489 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
6d84c944 | 10490 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
86f51436 | 10491 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
22d2e402 BK |
10492 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
10493 | IPR_USE_LONG_TRANSOP_TIMEOUT}, | |
60e7486b | 10494 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
5469cb5b BK |
10495 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
10496 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
185eb31c | 10497 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
22d2e402 BK |
10498 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, |
10499 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
185eb31c BK |
10500 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
10501 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, | |
b0f56d3d WB |
10502 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
10503 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, | |
60e7486b | 10504 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
5469cb5b | 10505 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, |
463fc696 | 10506 | IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, |
1da177e4 | 10507 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
6d84c944 | 10508 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, |
1da177e4 | 10509 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
6d84c944 | 10510 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, |
86f51436 | 10511 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
5469cb5b BK |
10512 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, |
10513 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
60e7486b | 10514 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
5469cb5b BK |
10515 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, |
10516 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
d7b4627f WB |
10517 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
10518 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, | |
10519 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, | |
10520 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, | |
10521 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, | |
10522 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, | |
b8d5d568 | 10523 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
10524 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 }, | |
5a918353 WB |
10525 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
10526 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 }, | |
32622bde WB |
10527 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
10528 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, | |
cd9b3d04 | 10529 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
d7b4627f | 10530 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, |
cd9b3d04 | 10531 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
d7b4627f | 10532 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, |
cd9b3d04 | 10533 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
d7b4627f | 10534 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, |
cd9b3d04 WB |
10535 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
10536 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 }, | |
10537 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
d7b4627f | 10538 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, |
b8d5d568 | 10539 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
10540 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 }, | |
10541 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10542 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 }, | |
10543 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10544 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 }, | |
10545 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10546 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 }, | |
43c5fdaf | 10547 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
10548 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 }, | |
10549 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
f94d9964 WX |
10550 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 }, |
10551 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
43c5fdaf | 10552 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 }, |
10553 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10554 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 }, | |
10555 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10556 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 }, | |
10557 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10558 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 }, | |
10559 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10560 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 }, | |
10561 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10562 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 }, | |
5eeac3e9 WX |
10563 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
10564 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 }, | |
10565 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10566 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 }, | |
10567 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, | |
10568 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 }, | |
00da9ffa WX |
10569 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, |
10570 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 }, | |
10571 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, | |
10572 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 }, | |
1da177e4 LT |
10573 | { } |
10574 | }; | |
10575 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); | |
10576 | ||
a55b2d21 | 10577 | static const struct pci_error_handlers ipr_err_handler = { |
f8a88b19 | 10578 | .error_detected = ipr_pci_error_detected, |
6270e593 | 10579 | .mmio_enabled = ipr_pci_mmio_enabled, |
f8a88b19 LV |
10580 | .slot_reset = ipr_pci_slot_reset, |
10581 | }; | |
10582 | ||
1da177e4 LT |
10583 | static struct pci_driver ipr_driver = { |
10584 | .name = IPR_NAME, | |
10585 | .id_table = ipr_pci_table, | |
10586 | .probe = ipr_probe, | |
6f039790 | 10587 | .remove = ipr_remove, |
d18c3db5 | 10588 | .shutdown = ipr_shutdown, |
f8a88b19 | 10589 | .err_handler = &ipr_err_handler, |
1da177e4 LT |
10590 | }; |
10591 | ||
f72919ec WB |
10592 | /** |
10593 | * ipr_halt_done - Shutdown prepare completion | |
10594 | * | |
10595 | * Return value: | |
10596 | * none | |
10597 | **/ | |
10598 | static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) | |
10599 | { | |
05a6538a | 10600 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
f72919ec WB |
10601 | } |
10602 | ||
10603 | /** | |
10604 | * ipr_halt - Issue shutdown prepare to all adapters | |
10605 | * | |
10606 | * Return value: | |
10607 | * NOTIFY_OK on success / NOTIFY_DONE on failure | |
10608 | **/ | |
10609 | static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) | |
10610 | { | |
10611 | struct ipr_cmnd *ipr_cmd; | |
10612 | struct ipr_ioa_cfg *ioa_cfg; | |
feccada9 | 10613 | unsigned long flags = 0, driver_lock_flags; |
f72919ec WB |
10614 | |
10615 | if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) | |
10616 | return NOTIFY_DONE; | |
10617 | ||
feccada9 | 10618 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
f72919ec WB |
10619 | |
10620 | list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { | |
10621 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
4fdd7c7a BK |
10622 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds || |
10623 | (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) { | |
f72919ec WB |
10624 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
10625 | continue; | |
10626 | } | |
10627 | ||
10628 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
10629 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
10630 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
10631 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
10632 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; | |
10633 | ||
10634 | ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
10635 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
10636 | } | |
feccada9 | 10637 | spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); |
f72919ec WB |
10638 | |
10639 | return NOTIFY_OK; | |
10640 | } | |
10641 | ||
10642 | static struct notifier_block ipr_notifier = { | |
10643 | ipr_halt, NULL, 0 | |
10644 | }; | |
10645 | ||
1da177e4 LT |
10646 | /** |
10647 | * ipr_init - Module entry point | |
10648 | * | |
10649 | * Return value: | |
10650 | * 0 on success / negative value on failure | |
10651 | **/ | |
10652 | static int __init ipr_init(void) | |
10653 | { | |
10654 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", | |
10655 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); | |
10656 | ||
f72919ec | 10657 | register_reboot_notifier(&ipr_notifier); |
dcbccbde | 10658 | return pci_register_driver(&ipr_driver); |
1da177e4 LT |
10659 | } |
10660 | ||
10661 | /** | |
10662 | * ipr_exit - Module unload | |
10663 | * | |
10664 | * Module unload entry point. | |
10665 | * | |
10666 | * Return value: | |
10667 | * none | |
10668 | **/ | |
10669 | static void __exit ipr_exit(void) | |
10670 | { | |
f72919ec | 10671 | unregister_reboot_notifier(&ipr_notifier); |
1da177e4 LT |
10672 | pci_unregister_driver(&ipr_driver); |
10673 | } | |
10674 | ||
10675 | module_init(ipr_init); | |
10676 | module_exit(ipr_exit); |