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edd16368 SC |
1 | /* |
2 | * Disk Array driver for HP Smart Array SAS controllers | |
94c7bc31 | 3 | * Copyright 2016 Microsemi Corporation |
1358f6dc DB |
4 | * Copyright 2014-2015 PMC-Sierra, Inc. |
5 | * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P. | |
edd16368 SC |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; version 2 of the License. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
14 | * NON INFRINGEMENT. See the GNU General Public License for more details. | |
15 | * | |
94c7bc31 | 16 | * Questions/Comments/Bugfixes to esc.storagedev@microsemi.com |
edd16368 SC |
17 | * |
18 | */ | |
19 | ||
20 | #include <linux/module.h> | |
21 | #include <linux/interrupt.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/pci.h> | |
e5a44df8 | 24 | #include <linux/pci-aspm.h> |
edd16368 SC |
25 | #include <linux/kernel.h> |
26 | #include <linux/slab.h> | |
27 | #include <linux/delay.h> | |
28 | #include <linux/fs.h> | |
29 | #include <linux/timer.h> | |
edd16368 SC |
30 | #include <linux/init.h> |
31 | #include <linux/spinlock.h> | |
edd16368 SC |
32 | #include <linux/compat.h> |
33 | #include <linux/blktrace_api.h> | |
34 | #include <linux/uaccess.h> | |
35 | #include <linux/io.h> | |
36 | #include <linux/dma-mapping.h> | |
37 | #include <linux/completion.h> | |
38 | #include <linux/moduleparam.h> | |
39 | #include <scsi/scsi.h> | |
40 | #include <scsi/scsi_cmnd.h> | |
41 | #include <scsi/scsi_device.h> | |
42 | #include <scsi/scsi_host.h> | |
667e23d4 | 43 | #include <scsi/scsi_tcq.h> |
9437ac43 | 44 | #include <scsi/scsi_eh.h> |
d04e62b9 | 45 | #include <scsi/scsi_transport_sas.h> |
73153fe5 | 46 | #include <scsi/scsi_dbg.h> |
edd16368 SC |
47 | #include <linux/cciss_ioctl.h> |
48 | #include <linux/string.h> | |
49 | #include <linux/bitmap.h> | |
60063497 | 50 | #include <linux/atomic.h> |
a0c12413 | 51 | #include <linux/jiffies.h> |
42a91641 | 52 | #include <linux/percpu-defs.h> |
094963da | 53 | #include <linux/percpu.h> |
2b08b3e9 | 54 | #include <asm/unaligned.h> |
283b4a9b | 55 | #include <asm/div64.h> |
edd16368 SC |
56 | #include "hpsa_cmd.h" |
57 | #include "hpsa.h" | |
58 | ||
ec2c3aa9 DB |
59 | /* |
60 | * HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' | |
61 | * with an optional trailing '-' followed by a byte value (0-255). | |
62 | */ | |
30c0061c | 63 | #define HPSA_DRIVER_VERSION "3.4.20-0" |
edd16368 | 64 | #define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")" |
f79cfec6 | 65 | #define HPSA "hpsa" |
edd16368 | 66 | |
007e7aa9 RE |
67 | /* How long to wait for CISS doorbell communication */ |
68 | #define CLEAR_EVENT_WAIT_INTERVAL 20 /* ms for each msleep() call */ | |
69 | #define MODE_CHANGE_WAIT_INTERVAL 10 /* ms for each msleep() call */ | |
70 | #define MAX_CLEAR_EVENT_WAIT 30000 /* times 20 ms = 600 s */ | |
71 | #define MAX_MODE_CHANGE_WAIT 2000 /* times 10 ms = 20 s */ | |
edd16368 SC |
72 | #define MAX_IOCTL_CONFIG_WAIT 1000 |
73 | ||
74 | /*define how many times we will try a command because of bus resets */ | |
75 | #define MAX_CMD_RETRIES 3 | |
76 | ||
77 | /* Embedded module documentation macros - see modules.h */ | |
78 | MODULE_AUTHOR("Hewlett-Packard Company"); | |
79 | MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \ | |
80 | HPSA_DRIVER_VERSION); | |
81 | MODULE_SUPPORTED_DEVICE("HP Smart Array Controllers"); | |
82 | MODULE_VERSION(HPSA_DRIVER_VERSION); | |
83 | MODULE_LICENSE("GPL"); | |
253d2464 | 84 | MODULE_ALIAS("cciss"); |
edd16368 | 85 | |
02ec19c8 SC |
86 | static int hpsa_simple_mode; |
87 | module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR); | |
88 | MODULE_PARM_DESC(hpsa_simple_mode, | |
89 | "Use 'simple mode' rather than 'performant mode'"); | |
edd16368 SC |
90 | |
91 | /* define the PCI info for the cards we can control */ | |
92 | static const struct pci_device_id hpsa_pci_device_id[] = { | |
edd16368 SC |
93 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3241}, |
94 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3243}, | |
95 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3245}, | |
96 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3247}, | |
97 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3249}, | |
163dbcd8 MM |
98 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324A}, |
99 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324B}, | |
f8b01eb9 | 100 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3233}, |
9143a961 | 101 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3350}, |
102 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3351}, | |
103 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3352}, | |
104 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3353}, | |
105 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3354}, | |
106 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3355}, | |
107 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3356}, | |
7f1974a7 | 108 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103c, 0x1920}, |
fe0c9610 MM |
109 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1921}, |
110 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1922}, | |
111 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1923}, | |
112 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1924}, | |
7f1974a7 | 113 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103c, 0x1925}, |
fe0c9610 MM |
114 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1926}, |
115 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1928}, | |
97b9f53d MM |
116 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1929}, |
117 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BD}, | |
118 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BE}, | |
119 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BF}, | |
120 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C0}, | |
121 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C1}, | |
122 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C2}, | |
123 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C3}, | |
124 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C4}, | |
125 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C5}, | |
3b7a45e5 | 126 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C6}, |
97b9f53d MM |
127 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C7}, |
128 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C8}, | |
129 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C9}, | |
3b7a45e5 JH |
130 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CA}, |
131 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CB}, | |
132 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CC}, | |
133 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CD}, | |
134 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CE}, | |
fdfa4b6d | 135 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0580}, |
cbb47dcb DB |
136 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0581}, |
137 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0582}, | |
138 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0583}, | |
139 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0584}, | |
140 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0585}, | |
8e616a5e SC |
141 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0076}, |
142 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0087}, | |
143 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D}, | |
144 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0088}, | |
145 | {PCI_VENDOR_ID_HP, 0x333f, 0x103c, 0x333f}, | |
7c03b870 | 146 | {PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, |
6798cc0a | 147 | PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, |
135ae6ed HR |
148 | {PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, |
149 | PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, | |
edd16368 SC |
150 | {0,} |
151 | }; | |
152 | ||
153 | MODULE_DEVICE_TABLE(pci, hpsa_pci_device_id); | |
154 | ||
155 | /* board_id = Subsystem Device ID & Vendor ID | |
156 | * product = Marketing Name for the board | |
157 | * access = Address of the struct of function pointers | |
158 | */ | |
159 | static struct board_type products[] = { | |
135ae6ed HR |
160 | {0x40700E11, "Smart Array 5300", &SA5A_access}, |
161 | {0x40800E11, "Smart Array 5i", &SA5B_access}, | |
162 | {0x40820E11, "Smart Array 532", &SA5B_access}, | |
163 | {0x40830E11, "Smart Array 5312", &SA5B_access}, | |
164 | {0x409A0E11, "Smart Array 641", &SA5A_access}, | |
165 | {0x409B0E11, "Smart Array 642", &SA5A_access}, | |
166 | {0x409C0E11, "Smart Array 6400", &SA5A_access}, | |
167 | {0x409D0E11, "Smart Array 6400 EM", &SA5A_access}, | |
168 | {0x40910E11, "Smart Array 6i", &SA5A_access}, | |
169 | {0x3225103C, "Smart Array P600", &SA5A_access}, | |
170 | {0x3223103C, "Smart Array P800", &SA5A_access}, | |
171 | {0x3234103C, "Smart Array P400", &SA5A_access}, | |
172 | {0x3235103C, "Smart Array P400i", &SA5A_access}, | |
173 | {0x3211103C, "Smart Array E200i", &SA5A_access}, | |
174 | {0x3212103C, "Smart Array E200", &SA5A_access}, | |
175 | {0x3213103C, "Smart Array E200i", &SA5A_access}, | |
176 | {0x3214103C, "Smart Array E200i", &SA5A_access}, | |
177 | {0x3215103C, "Smart Array E200i", &SA5A_access}, | |
178 | {0x3237103C, "Smart Array E500", &SA5A_access}, | |
179 | {0x323D103C, "Smart Array P700m", &SA5A_access}, | |
edd16368 SC |
180 | {0x3241103C, "Smart Array P212", &SA5_access}, |
181 | {0x3243103C, "Smart Array P410", &SA5_access}, | |
182 | {0x3245103C, "Smart Array P410i", &SA5_access}, | |
183 | {0x3247103C, "Smart Array P411", &SA5_access}, | |
184 | {0x3249103C, "Smart Array P812", &SA5_access}, | |
163dbcd8 MM |
185 | {0x324A103C, "Smart Array P712m", &SA5_access}, |
186 | {0x324B103C, "Smart Array P711m", &SA5_access}, | |
7d2cce58 | 187 | {0x3233103C, "HP StorageWorks 1210m", &SA5_access}, /* alias of 333f */ |
fe0c9610 MM |
188 | {0x3350103C, "Smart Array P222", &SA5_access}, |
189 | {0x3351103C, "Smart Array P420", &SA5_access}, | |
190 | {0x3352103C, "Smart Array P421", &SA5_access}, | |
191 | {0x3353103C, "Smart Array P822", &SA5_access}, | |
192 | {0x3354103C, "Smart Array P420i", &SA5_access}, | |
193 | {0x3355103C, "Smart Array P220i", &SA5_access}, | |
194 | {0x3356103C, "Smart Array P721m", &SA5_access}, | |
7f1974a7 | 195 | {0x1920103C, "Smart Array P430i", &SA5_access}, |
1fd6c8e3 MM |
196 | {0x1921103C, "Smart Array P830i", &SA5_access}, |
197 | {0x1922103C, "Smart Array P430", &SA5_access}, | |
198 | {0x1923103C, "Smart Array P431", &SA5_access}, | |
199 | {0x1924103C, "Smart Array P830", &SA5_access}, | |
7f1974a7 | 200 | {0x1925103C, "Smart Array P831", &SA5_access}, |
1fd6c8e3 MM |
201 | {0x1926103C, "Smart Array P731m", &SA5_access}, |
202 | {0x1928103C, "Smart Array P230i", &SA5_access}, | |
203 | {0x1929103C, "Smart Array P530", &SA5_access}, | |
27fb8137 DB |
204 | {0x21BD103C, "Smart Array P244br", &SA5_access}, |
205 | {0x21BE103C, "Smart Array P741m", &SA5_access}, | |
206 | {0x21BF103C, "Smart HBA H240ar", &SA5_access}, | |
207 | {0x21C0103C, "Smart Array P440ar", &SA5_access}, | |
c8ae0ab1 | 208 | {0x21C1103C, "Smart Array P840ar", &SA5_access}, |
27fb8137 DB |
209 | {0x21C2103C, "Smart Array P440", &SA5_access}, |
210 | {0x21C3103C, "Smart Array P441", &SA5_access}, | |
97b9f53d | 211 | {0x21C4103C, "Smart Array", &SA5_access}, |
27fb8137 DB |
212 | {0x21C5103C, "Smart Array P841", &SA5_access}, |
213 | {0x21C6103C, "Smart HBA H244br", &SA5_access}, | |
214 | {0x21C7103C, "Smart HBA H240", &SA5_access}, | |
215 | {0x21C8103C, "Smart HBA H241", &SA5_access}, | |
97b9f53d | 216 | {0x21C9103C, "Smart Array", &SA5_access}, |
27fb8137 DB |
217 | {0x21CA103C, "Smart Array P246br", &SA5_access}, |
218 | {0x21CB103C, "Smart Array P840", &SA5_access}, | |
3b7a45e5 JH |
219 | {0x21CC103C, "Smart Array", &SA5_access}, |
220 | {0x21CD103C, "Smart Array", &SA5_access}, | |
27fb8137 | 221 | {0x21CE103C, "Smart HBA", &SA5_access}, |
fdfa4b6d | 222 | {0x05809005, "SmartHBA-SA", &SA5_access}, |
cbb47dcb DB |
223 | {0x05819005, "SmartHBA-SA 8i", &SA5_access}, |
224 | {0x05829005, "SmartHBA-SA 8i8e", &SA5_access}, | |
225 | {0x05839005, "SmartHBA-SA 8e", &SA5_access}, | |
226 | {0x05849005, "SmartHBA-SA 16i", &SA5_access}, | |
227 | {0x05859005, "SmartHBA-SA 4i4e", &SA5_access}, | |
8e616a5e SC |
228 | {0x00761590, "HP Storage P1224 Array Controller", &SA5_access}, |
229 | {0x00871590, "HP Storage P1224e Array Controller", &SA5_access}, | |
230 | {0x007D1590, "HP Storage P1228 Array Controller", &SA5_access}, | |
231 | {0x00881590, "HP Storage P1228e Array Controller", &SA5_access}, | |
232 | {0x333f103c, "HP StorageWorks 1210m Array Controller", &SA5_access}, | |
edd16368 SC |
233 | {0xFFFF103C, "Unknown Smart Array", &SA5_access}, |
234 | }; | |
235 | ||
d04e62b9 KB |
236 | static struct scsi_transport_template *hpsa_sas_transport_template; |
237 | static int hpsa_add_sas_host(struct ctlr_info *h); | |
238 | static void hpsa_delete_sas_host(struct ctlr_info *h); | |
239 | static int hpsa_add_sas_device(struct hpsa_sas_node *hpsa_sas_node, | |
240 | struct hpsa_scsi_dev_t *device); | |
241 | static void hpsa_remove_sas_device(struct hpsa_scsi_dev_t *device); | |
242 | static struct hpsa_scsi_dev_t | |
243 | *hpsa_find_device_by_sas_rphy(struct ctlr_info *h, | |
244 | struct sas_rphy *rphy); | |
245 | ||
a58e7e53 WS |
246 | #define SCSI_CMD_BUSY ((struct scsi_cmnd *)&hpsa_cmd_busy) |
247 | static const struct scsi_cmnd hpsa_cmd_busy; | |
248 | #define SCSI_CMD_IDLE ((struct scsi_cmnd *)&hpsa_cmd_idle) | |
249 | static const struct scsi_cmnd hpsa_cmd_idle; | |
edd16368 SC |
250 | static int number_of_controllers; |
251 | ||
10f66018 SC |
252 | static irqreturn_t do_hpsa_intr_intx(int irq, void *dev_id); |
253 | static irqreturn_t do_hpsa_intr_msi(int irq, void *dev_id); | |
42a91641 | 254 | static int hpsa_ioctl(struct scsi_device *dev, int cmd, void __user *arg); |
edd16368 SC |
255 | |
256 | #ifdef CONFIG_COMPAT | |
42a91641 DB |
257 | static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, |
258 | void __user *arg); | |
edd16368 SC |
259 | #endif |
260 | ||
261 | static void cmd_free(struct ctlr_info *h, struct CommandList *c); | |
edd16368 | 262 | static struct CommandList *cmd_alloc(struct ctlr_info *h); |
73153fe5 WS |
263 | static void cmd_tagged_free(struct ctlr_info *h, struct CommandList *c); |
264 | static struct CommandList *cmd_tagged_alloc(struct ctlr_info *h, | |
265 | struct scsi_cmnd *scmd); | |
a2dac136 | 266 | static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h, |
b7bb24eb | 267 | void *buff, size_t size, u16 page_code, unsigned char *scsi3addr, |
edd16368 | 268 | int cmd_type); |
2c143342 | 269 | static void hpsa_free_cmd_pool(struct ctlr_info *h); |
b7bb24eb | 270 | #define VPD_PAGE (1 << 8) |
b48d9804 | 271 | #define HPSA_SIMPLE_ERROR_BITS 0x03 |
edd16368 | 272 | |
f281233d | 273 | static int hpsa_scsi_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd); |
a08a8471 SC |
274 | static void hpsa_scan_start(struct Scsi_Host *); |
275 | static int hpsa_scan_finished(struct Scsi_Host *sh, | |
276 | unsigned long elapsed_time); | |
7c0a0229 | 277 | static int hpsa_change_queue_depth(struct scsi_device *sdev, int qdepth); |
edd16368 SC |
278 | |
279 | static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd); | |
280 | static int hpsa_slave_alloc(struct scsi_device *sdev); | |
41ce4c35 | 281 | static int hpsa_slave_configure(struct scsi_device *sdev); |
edd16368 SC |
282 | static void hpsa_slave_destroy(struct scsi_device *sdev); |
283 | ||
8aa60681 | 284 | static void hpsa_update_scsi_devices(struct ctlr_info *h); |
edd16368 SC |
285 | static int check_for_unit_attention(struct ctlr_info *h, |
286 | struct CommandList *c); | |
287 | static void check_ioctl_unit_attention(struct ctlr_info *h, | |
288 | struct CommandList *c); | |
303932fd DB |
289 | /* performant mode helper functions */ |
290 | static void calc_bucket_map(int *bucket, int num_buckets, | |
2b08b3e9 | 291 | int nsgs, int min_blocks, u32 *bucket_map); |
105a3dbc RE |
292 | static void hpsa_free_performant_mode(struct ctlr_info *h); |
293 | static int hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h); | |
254f796b | 294 | static inline u32 next_command(struct ctlr_info *h, u8 q); |
6f039790 GKH |
295 | static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr, |
296 | u32 *cfg_base_addr, u64 *cfg_base_addr_index, | |
297 | u64 *cfg_offset); | |
298 | static int hpsa_pci_find_memory_BAR(struct pci_dev *pdev, | |
299 | unsigned long *memory_bar); | |
135ae6ed HR |
300 | static int hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id, |
301 | bool *legacy_board); | |
bfd7546c DB |
302 | static int wait_for_device_to_become_ready(struct ctlr_info *h, |
303 | unsigned char lunaddr[], | |
304 | int reply_queue); | |
6f039790 GKH |
305 | static int hpsa_wait_for_board_state(struct pci_dev *pdev, void __iomem *vaddr, |
306 | int wait_for_ready); | |
75167d2c | 307 | static inline void finish_cmd(struct CommandList *c); |
c706a795 | 308 | static int hpsa_wait_for_mode_change_ack(struct ctlr_info *h); |
fe5389c8 SC |
309 | #define BOARD_NOT_READY 0 |
310 | #define BOARD_READY 1 | |
23100dd9 | 311 | static void hpsa_drain_accel_commands(struct ctlr_info *h); |
76438d08 | 312 | static void hpsa_flush_cache(struct ctlr_info *h); |
c349775e ST |
313 | static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h, |
314 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, | |
03383736 | 315 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk); |
080ef1cc | 316 | static void hpsa_command_resubmit_worker(struct work_struct *work); |
25163bd5 WS |
317 | static u32 lockup_detected(struct ctlr_info *h); |
318 | static int detect_controller_lockup(struct ctlr_info *h); | |
c2adae44 | 319 | static void hpsa_disable_rld_caching(struct ctlr_info *h); |
d04e62b9 KB |
320 | static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h, |
321 | struct ReportExtendedLUNdata *buf, int bufsize); | |
8383278d ST |
322 | static bool hpsa_vpd_page_supported(struct ctlr_info *h, |
323 | unsigned char scsi3addr[], u8 page); | |
34592254 | 324 | static int hpsa_luns_changed(struct ctlr_info *h); |
ba74fdc4 DB |
325 | static bool hpsa_cmd_dev_match(struct ctlr_info *h, struct CommandList *c, |
326 | struct hpsa_scsi_dev_t *dev, | |
327 | unsigned char *scsi3addr); | |
edd16368 | 328 | |
edd16368 SC |
329 | static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev) |
330 | { | |
331 | unsigned long *priv = shost_priv(sdev->host); | |
332 | return (struct ctlr_info *) *priv; | |
333 | } | |
334 | ||
a23513e8 SC |
335 | static inline struct ctlr_info *shost_to_hba(struct Scsi_Host *sh) |
336 | { | |
337 | unsigned long *priv = shost_priv(sh); | |
338 | return (struct ctlr_info *) *priv; | |
339 | } | |
340 | ||
a58e7e53 WS |
341 | static inline bool hpsa_is_cmd_idle(struct CommandList *c) |
342 | { | |
343 | return c->scsi_cmd == SCSI_CMD_IDLE; | |
344 | } | |
345 | ||
d604f533 WS |
346 | static inline bool hpsa_is_pending_event(struct CommandList *c) |
347 | { | |
08ec46f6 | 348 | return c->reset_pending; |
d604f533 WS |
349 | } |
350 | ||
9437ac43 SC |
351 | /* extract sense key, asc, and ascq from sense data. -1 means invalid. */ |
352 | static void decode_sense_data(const u8 *sense_data, int sense_data_len, | |
353 | u8 *sense_key, u8 *asc, u8 *ascq) | |
354 | { | |
355 | struct scsi_sense_hdr sshdr; | |
356 | bool rc; | |
357 | ||
358 | *sense_key = -1; | |
359 | *asc = -1; | |
360 | *ascq = -1; | |
361 | ||
362 | if (sense_data_len < 1) | |
363 | return; | |
364 | ||
365 | rc = scsi_normalize_sense(sense_data, sense_data_len, &sshdr); | |
366 | if (rc) { | |
367 | *sense_key = sshdr.sense_key; | |
368 | *asc = sshdr.asc; | |
369 | *ascq = sshdr.ascq; | |
370 | } | |
371 | } | |
372 | ||
edd16368 SC |
373 | static int check_for_unit_attention(struct ctlr_info *h, |
374 | struct CommandList *c) | |
375 | { | |
9437ac43 SC |
376 | u8 sense_key, asc, ascq; |
377 | int sense_len; | |
378 | ||
379 | if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo)) | |
380 | sense_len = sizeof(c->err_info->SenseInfo); | |
381 | else | |
382 | sense_len = c->err_info->SenseLen; | |
383 | ||
384 | decode_sense_data(c->err_info->SenseInfo, sense_len, | |
385 | &sense_key, &asc, &ascq); | |
81c27557 | 386 | if (sense_key != UNIT_ATTENTION || asc == 0xff) |
edd16368 SC |
387 | return 0; |
388 | ||
9437ac43 | 389 | switch (asc) { |
edd16368 | 390 | case STATE_CHANGED: |
9437ac43 | 391 | dev_warn(&h->pdev->dev, |
2946e82b RE |
392 | "%s: a state change detected, command retried\n", |
393 | h->devname); | |
edd16368 SC |
394 | break; |
395 | case LUN_FAILED: | |
7f73695a | 396 | dev_warn(&h->pdev->dev, |
2946e82b | 397 | "%s: LUN failure detected\n", h->devname); |
edd16368 SC |
398 | break; |
399 | case REPORT_LUNS_CHANGED: | |
7f73695a | 400 | dev_warn(&h->pdev->dev, |
2946e82b | 401 | "%s: report LUN data changed\n", h->devname); |
edd16368 | 402 | /* |
4f4eb9f1 ST |
403 | * Note: this REPORT_LUNS_CHANGED condition only occurs on the external |
404 | * target (array) devices. | |
edd16368 SC |
405 | */ |
406 | break; | |
407 | case POWER_OR_RESET: | |
2946e82b RE |
408 | dev_warn(&h->pdev->dev, |
409 | "%s: a power on or device reset detected\n", | |
410 | h->devname); | |
edd16368 SC |
411 | break; |
412 | case UNIT_ATTENTION_CLEARED: | |
2946e82b RE |
413 | dev_warn(&h->pdev->dev, |
414 | "%s: unit attention cleared by another initiator\n", | |
415 | h->devname); | |
edd16368 SC |
416 | break; |
417 | default: | |
2946e82b RE |
418 | dev_warn(&h->pdev->dev, |
419 | "%s: unknown unit attention detected\n", | |
420 | h->devname); | |
edd16368 SC |
421 | break; |
422 | } | |
423 | return 1; | |
424 | } | |
425 | ||
852af20a MB |
426 | static int check_for_busy(struct ctlr_info *h, struct CommandList *c) |
427 | { | |
428 | if (c->err_info->CommandStatus != CMD_TARGET_STATUS || | |
429 | (c->err_info->ScsiStatus != SAM_STAT_BUSY && | |
430 | c->err_info->ScsiStatus != SAM_STAT_TASK_SET_FULL)) | |
431 | return 0; | |
432 | dev_warn(&h->pdev->dev, HPSA "device busy"); | |
433 | return 1; | |
434 | } | |
435 | ||
e985c58f SC |
436 | static u32 lockup_detected(struct ctlr_info *h); |
437 | static ssize_t host_show_lockup_detected(struct device *dev, | |
438 | struct device_attribute *attr, char *buf) | |
439 | { | |
440 | int ld; | |
441 | struct ctlr_info *h; | |
442 | struct Scsi_Host *shost = class_to_shost(dev); | |
443 | ||
444 | h = shost_to_hba(shost); | |
445 | ld = lockup_detected(h); | |
446 | ||
447 | return sprintf(buf, "ld=%d\n", ld); | |
448 | } | |
449 | ||
da0697bd ST |
450 | static ssize_t host_store_hp_ssd_smart_path_status(struct device *dev, |
451 | struct device_attribute *attr, | |
452 | const char *buf, size_t count) | |
453 | { | |
454 | int status, len; | |
455 | struct ctlr_info *h; | |
456 | struct Scsi_Host *shost = class_to_shost(dev); | |
457 | char tmpbuf[10]; | |
458 | ||
459 | if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) | |
460 | return -EACCES; | |
461 | len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count; | |
462 | strncpy(tmpbuf, buf, len); | |
463 | tmpbuf[len] = '\0'; | |
464 | if (sscanf(tmpbuf, "%d", &status) != 1) | |
465 | return -EINVAL; | |
466 | h = shost_to_hba(shost); | |
467 | h->acciopath_status = !!status; | |
468 | dev_warn(&h->pdev->dev, | |
469 | "hpsa: HP SSD Smart Path %s via sysfs update.\n", | |
470 | h->acciopath_status ? "enabled" : "disabled"); | |
471 | return count; | |
472 | } | |
473 | ||
2ba8bfc8 SC |
474 | static ssize_t host_store_raid_offload_debug(struct device *dev, |
475 | struct device_attribute *attr, | |
476 | const char *buf, size_t count) | |
477 | { | |
478 | int debug_level, len; | |
479 | struct ctlr_info *h; | |
480 | struct Scsi_Host *shost = class_to_shost(dev); | |
481 | char tmpbuf[10]; | |
482 | ||
483 | if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) | |
484 | return -EACCES; | |
485 | len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count; | |
486 | strncpy(tmpbuf, buf, len); | |
487 | tmpbuf[len] = '\0'; | |
488 | if (sscanf(tmpbuf, "%d", &debug_level) != 1) | |
489 | return -EINVAL; | |
490 | if (debug_level < 0) | |
491 | debug_level = 0; | |
492 | h = shost_to_hba(shost); | |
493 | h->raid_offload_debug = debug_level; | |
494 | dev_warn(&h->pdev->dev, "hpsa: Set raid_offload_debug level = %d\n", | |
495 | h->raid_offload_debug); | |
496 | return count; | |
497 | } | |
498 | ||
edd16368 SC |
499 | static ssize_t host_store_rescan(struct device *dev, |
500 | struct device_attribute *attr, | |
501 | const char *buf, size_t count) | |
502 | { | |
503 | struct ctlr_info *h; | |
504 | struct Scsi_Host *shost = class_to_shost(dev); | |
a23513e8 | 505 | h = shost_to_hba(shost); |
31468401 | 506 | hpsa_scan_start(h->scsi_host); |
edd16368 SC |
507 | return count; |
508 | } | |
509 | ||
d28ce020 SC |
510 | static ssize_t host_show_firmware_revision(struct device *dev, |
511 | struct device_attribute *attr, char *buf) | |
512 | { | |
513 | struct ctlr_info *h; | |
514 | struct Scsi_Host *shost = class_to_shost(dev); | |
515 | unsigned char *fwrev; | |
516 | ||
517 | h = shost_to_hba(shost); | |
518 | if (!h->hba_inquiry_data) | |
519 | return 0; | |
520 | fwrev = &h->hba_inquiry_data[32]; | |
521 | return snprintf(buf, 20, "%c%c%c%c\n", | |
522 | fwrev[0], fwrev[1], fwrev[2], fwrev[3]); | |
523 | } | |
524 | ||
94a13649 SC |
525 | static ssize_t host_show_commands_outstanding(struct device *dev, |
526 | struct device_attribute *attr, char *buf) | |
527 | { | |
528 | struct Scsi_Host *shost = class_to_shost(dev); | |
529 | struct ctlr_info *h = shost_to_hba(shost); | |
530 | ||
0cbf768e SC |
531 | return snprintf(buf, 20, "%d\n", |
532 | atomic_read(&h->commands_outstanding)); | |
94a13649 SC |
533 | } |
534 | ||
745a7a25 SC |
535 | static ssize_t host_show_transport_mode(struct device *dev, |
536 | struct device_attribute *attr, char *buf) | |
537 | { | |
538 | struct ctlr_info *h; | |
539 | struct Scsi_Host *shost = class_to_shost(dev); | |
540 | ||
541 | h = shost_to_hba(shost); | |
542 | return snprintf(buf, 20, "%s\n", | |
960a30e7 | 543 | h->transMethod & CFGTBL_Trans_Performant ? |
745a7a25 SC |
544 | "performant" : "simple"); |
545 | } | |
546 | ||
da0697bd ST |
547 | static ssize_t host_show_hp_ssd_smart_path_status(struct device *dev, |
548 | struct device_attribute *attr, char *buf) | |
549 | { | |
550 | struct ctlr_info *h; | |
551 | struct Scsi_Host *shost = class_to_shost(dev); | |
552 | ||
553 | h = shost_to_hba(shost); | |
554 | return snprintf(buf, 30, "HP SSD Smart Path %s\n", | |
555 | (h->acciopath_status == 1) ? "enabled" : "disabled"); | |
556 | } | |
557 | ||
46380786 | 558 | /* List of controllers which cannot be hard reset on kexec with reset_devices */ |
941b1cda SC |
559 | static u32 unresettable_controller[] = { |
560 | 0x324a103C, /* Smart Array P712m */ | |
9b5c48c2 | 561 | 0x324b103C, /* Smart Array P711m */ |
941b1cda SC |
562 | 0x3223103C, /* Smart Array P800 */ |
563 | 0x3234103C, /* Smart Array P400 */ | |
564 | 0x3235103C, /* Smart Array P400i */ | |
565 | 0x3211103C, /* Smart Array E200i */ | |
566 | 0x3212103C, /* Smart Array E200 */ | |
567 | 0x3213103C, /* Smart Array E200i */ | |
568 | 0x3214103C, /* Smart Array E200i */ | |
569 | 0x3215103C, /* Smart Array E200i */ | |
570 | 0x3237103C, /* Smart Array E500 */ | |
571 | 0x323D103C, /* Smart Array P700m */ | |
7af0abbc | 572 | 0x40800E11, /* Smart Array 5i */ |
941b1cda SC |
573 | 0x409C0E11, /* Smart Array 6400 */ |
574 | 0x409D0E11, /* Smart Array 6400 EM */ | |
5a4f934e TH |
575 | 0x40700E11, /* Smart Array 5300 */ |
576 | 0x40820E11, /* Smart Array 532 */ | |
577 | 0x40830E11, /* Smart Array 5312 */ | |
578 | 0x409A0E11, /* Smart Array 641 */ | |
579 | 0x409B0E11, /* Smart Array 642 */ | |
580 | 0x40910E11, /* Smart Array 6i */ | |
941b1cda SC |
581 | }; |
582 | ||
46380786 SC |
583 | /* List of controllers which cannot even be soft reset */ |
584 | static u32 soft_unresettable_controller[] = { | |
7af0abbc | 585 | 0x40800E11, /* Smart Array 5i */ |
5a4f934e TH |
586 | 0x40700E11, /* Smart Array 5300 */ |
587 | 0x40820E11, /* Smart Array 532 */ | |
588 | 0x40830E11, /* Smart Array 5312 */ | |
589 | 0x409A0E11, /* Smart Array 641 */ | |
590 | 0x409B0E11, /* Smart Array 642 */ | |
591 | 0x40910E11, /* Smart Array 6i */ | |
46380786 SC |
592 | /* Exclude 640x boards. These are two pci devices in one slot |
593 | * which share a battery backed cache module. One controls the | |
594 | * cache, the other accesses the cache through the one that controls | |
595 | * it. If we reset the one controlling the cache, the other will | |
596 | * likely not be happy. Just forbid resetting this conjoined mess. | |
597 | * The 640x isn't really supported by hpsa anyway. | |
598 | */ | |
599 | 0x409C0E11, /* Smart Array 6400 */ | |
600 | 0x409D0E11, /* Smart Array 6400 EM */ | |
601 | }; | |
602 | ||
9b5c48c2 | 603 | static int board_id_in_array(u32 a[], int nelems, u32 board_id) |
941b1cda SC |
604 | { |
605 | int i; | |
606 | ||
9b5c48c2 SC |
607 | for (i = 0; i < nelems; i++) |
608 | if (a[i] == board_id) | |
609 | return 1; | |
610 | return 0; | |
46380786 SC |
611 | } |
612 | ||
9b5c48c2 | 613 | static int ctlr_is_hard_resettable(u32 board_id) |
46380786 | 614 | { |
9b5c48c2 SC |
615 | return !board_id_in_array(unresettable_controller, |
616 | ARRAY_SIZE(unresettable_controller), board_id); | |
617 | } | |
46380786 | 618 | |
9b5c48c2 SC |
619 | static int ctlr_is_soft_resettable(u32 board_id) |
620 | { | |
621 | return !board_id_in_array(soft_unresettable_controller, | |
622 | ARRAY_SIZE(soft_unresettable_controller), board_id); | |
941b1cda SC |
623 | } |
624 | ||
46380786 SC |
625 | static int ctlr_is_resettable(u32 board_id) |
626 | { | |
627 | return ctlr_is_hard_resettable(board_id) || | |
628 | ctlr_is_soft_resettable(board_id); | |
629 | } | |
630 | ||
941b1cda SC |
631 | static ssize_t host_show_resettable(struct device *dev, |
632 | struct device_attribute *attr, char *buf) | |
633 | { | |
634 | struct ctlr_info *h; | |
635 | struct Scsi_Host *shost = class_to_shost(dev); | |
636 | ||
637 | h = shost_to_hba(shost); | |
46380786 | 638 | return snprintf(buf, 20, "%d\n", ctlr_is_resettable(h->board_id)); |
941b1cda SC |
639 | } |
640 | ||
edd16368 SC |
641 | static inline int is_logical_dev_addr_mode(unsigned char scsi3addr[]) |
642 | { | |
643 | return (scsi3addr[3] & 0xC0) == 0x40; | |
644 | } | |
645 | ||
f2ef0ce7 | 646 | static const char * const raid_label[] = { "0", "4", "1(+0)", "5", "5+1", "6", |
7c59a0d4 | 647 | "1(+0)ADM", "UNKNOWN", "PHYS DRV" |
edd16368 | 648 | }; |
6b80b18f ST |
649 | #define HPSA_RAID_0 0 |
650 | #define HPSA_RAID_4 1 | |
651 | #define HPSA_RAID_1 2 /* also used for RAID 10 */ | |
652 | #define HPSA_RAID_5 3 /* also used for RAID 50 */ | |
653 | #define HPSA_RAID_51 4 | |
654 | #define HPSA_RAID_6 5 /* also used for RAID 60 */ | |
655 | #define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */ | |
7c59a0d4 DB |
656 | #define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 2) |
657 | #define PHYSICAL_DRIVE (ARRAY_SIZE(raid_label) - 1) | |
edd16368 | 658 | |
f3f01730 KB |
659 | static inline bool is_logical_device(struct hpsa_scsi_dev_t *device) |
660 | { | |
661 | return !device->physical_device; | |
662 | } | |
edd16368 SC |
663 | |
664 | static ssize_t raid_level_show(struct device *dev, | |
665 | struct device_attribute *attr, char *buf) | |
666 | { | |
667 | ssize_t l = 0; | |
82a72c0a | 668 | unsigned char rlevel; |
edd16368 SC |
669 | struct ctlr_info *h; |
670 | struct scsi_device *sdev; | |
671 | struct hpsa_scsi_dev_t *hdev; | |
672 | unsigned long flags; | |
673 | ||
674 | sdev = to_scsi_device(dev); | |
675 | h = sdev_to_hba(sdev); | |
676 | spin_lock_irqsave(&h->lock, flags); | |
677 | hdev = sdev->hostdata; | |
678 | if (!hdev) { | |
679 | spin_unlock_irqrestore(&h->lock, flags); | |
680 | return -ENODEV; | |
681 | } | |
682 | ||
683 | /* Is this even a logical drive? */ | |
f3f01730 | 684 | if (!is_logical_device(hdev)) { |
edd16368 SC |
685 | spin_unlock_irqrestore(&h->lock, flags); |
686 | l = snprintf(buf, PAGE_SIZE, "N/A\n"); | |
687 | return l; | |
688 | } | |
689 | ||
690 | rlevel = hdev->raid_level; | |
691 | spin_unlock_irqrestore(&h->lock, flags); | |
82a72c0a | 692 | if (rlevel > RAID_UNKNOWN) |
edd16368 SC |
693 | rlevel = RAID_UNKNOWN; |
694 | l = snprintf(buf, PAGE_SIZE, "RAID %s\n", raid_label[rlevel]); | |
695 | return l; | |
696 | } | |
697 | ||
698 | static ssize_t lunid_show(struct device *dev, | |
699 | struct device_attribute *attr, char *buf) | |
700 | { | |
701 | struct ctlr_info *h; | |
702 | struct scsi_device *sdev; | |
703 | struct hpsa_scsi_dev_t *hdev; | |
704 | unsigned long flags; | |
705 | unsigned char lunid[8]; | |
706 | ||
707 | sdev = to_scsi_device(dev); | |
708 | h = sdev_to_hba(sdev); | |
709 | spin_lock_irqsave(&h->lock, flags); | |
710 | hdev = sdev->hostdata; | |
711 | if (!hdev) { | |
712 | spin_unlock_irqrestore(&h->lock, flags); | |
713 | return -ENODEV; | |
714 | } | |
715 | memcpy(lunid, hdev->scsi3addr, sizeof(lunid)); | |
716 | spin_unlock_irqrestore(&h->lock, flags); | |
609a70df | 717 | return snprintf(buf, 20, "0x%8phN\n", lunid); |
edd16368 SC |
718 | } |
719 | ||
720 | static ssize_t unique_id_show(struct device *dev, | |
721 | struct device_attribute *attr, char *buf) | |
722 | { | |
723 | struct ctlr_info *h; | |
724 | struct scsi_device *sdev; | |
725 | struct hpsa_scsi_dev_t *hdev; | |
726 | unsigned long flags; | |
727 | unsigned char sn[16]; | |
728 | ||
729 | sdev = to_scsi_device(dev); | |
730 | h = sdev_to_hba(sdev); | |
731 | spin_lock_irqsave(&h->lock, flags); | |
732 | hdev = sdev->hostdata; | |
733 | if (!hdev) { | |
734 | spin_unlock_irqrestore(&h->lock, flags); | |
735 | return -ENODEV; | |
736 | } | |
737 | memcpy(sn, hdev->device_id, sizeof(sn)); | |
738 | spin_unlock_irqrestore(&h->lock, flags); | |
739 | return snprintf(buf, 16 * 2 + 2, | |
740 | "%02X%02X%02X%02X%02X%02X%02X%02X" | |
741 | "%02X%02X%02X%02X%02X%02X%02X%02X\n", | |
742 | sn[0], sn[1], sn[2], sn[3], | |
743 | sn[4], sn[5], sn[6], sn[7], | |
744 | sn[8], sn[9], sn[10], sn[11], | |
745 | sn[12], sn[13], sn[14], sn[15]); | |
746 | } | |
747 | ||
ded1be4a JH |
748 | static ssize_t sas_address_show(struct device *dev, |
749 | struct device_attribute *attr, char *buf) | |
750 | { | |
751 | struct ctlr_info *h; | |
752 | struct scsi_device *sdev; | |
753 | struct hpsa_scsi_dev_t *hdev; | |
754 | unsigned long flags; | |
755 | u64 sas_address; | |
756 | ||
757 | sdev = to_scsi_device(dev); | |
758 | h = sdev_to_hba(sdev); | |
759 | spin_lock_irqsave(&h->lock, flags); | |
760 | hdev = sdev->hostdata; | |
761 | if (!hdev || is_logical_device(hdev) || !hdev->expose_device) { | |
762 | spin_unlock_irqrestore(&h->lock, flags); | |
763 | return -ENODEV; | |
764 | } | |
765 | sas_address = hdev->sas_address; | |
766 | spin_unlock_irqrestore(&h->lock, flags); | |
767 | ||
768 | return snprintf(buf, PAGE_SIZE, "0x%016llx\n", sas_address); | |
769 | } | |
770 | ||
c1988684 ST |
771 | static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev, |
772 | struct device_attribute *attr, char *buf) | |
773 | { | |
774 | struct ctlr_info *h; | |
775 | struct scsi_device *sdev; | |
776 | struct hpsa_scsi_dev_t *hdev; | |
777 | unsigned long flags; | |
778 | int offload_enabled; | |
779 | ||
780 | sdev = to_scsi_device(dev); | |
781 | h = sdev_to_hba(sdev); | |
782 | spin_lock_irqsave(&h->lock, flags); | |
783 | hdev = sdev->hostdata; | |
784 | if (!hdev) { | |
785 | spin_unlock_irqrestore(&h->lock, flags); | |
786 | return -ENODEV; | |
787 | } | |
788 | offload_enabled = hdev->offload_enabled; | |
789 | spin_unlock_irqrestore(&h->lock, flags); | |
790 | return snprintf(buf, 20, "%d\n", offload_enabled); | |
791 | } | |
792 | ||
8270b862 | 793 | #define MAX_PATHS 8 |
8270b862 JH |
794 | static ssize_t path_info_show(struct device *dev, |
795 | struct device_attribute *attr, char *buf) | |
796 | { | |
797 | struct ctlr_info *h; | |
798 | struct scsi_device *sdev; | |
799 | struct hpsa_scsi_dev_t *hdev; | |
800 | unsigned long flags; | |
801 | int i; | |
802 | int output_len = 0; | |
803 | u8 box; | |
804 | u8 bay; | |
805 | u8 path_map_index = 0; | |
806 | char *active; | |
807 | unsigned char phys_connector[2]; | |
8270b862 | 808 | |
8270b862 JH |
809 | sdev = to_scsi_device(dev); |
810 | h = sdev_to_hba(sdev); | |
811 | spin_lock_irqsave(&h->devlock, flags); | |
812 | hdev = sdev->hostdata; | |
813 | if (!hdev) { | |
814 | spin_unlock_irqrestore(&h->devlock, flags); | |
815 | return -ENODEV; | |
816 | } | |
817 | ||
818 | bay = hdev->bay; | |
819 | for (i = 0; i < MAX_PATHS; i++) { | |
820 | path_map_index = 1<<i; | |
821 | if (i == hdev->active_path_index) | |
822 | active = "Active"; | |
823 | else if (hdev->path_map & path_map_index) | |
824 | active = "Inactive"; | |
825 | else | |
826 | continue; | |
827 | ||
1faf072c RV |
828 | output_len += scnprintf(buf + output_len, |
829 | PAGE_SIZE - output_len, | |
830 | "[%d:%d:%d:%d] %20.20s ", | |
8270b862 JH |
831 | h->scsi_host->host_no, |
832 | hdev->bus, hdev->target, hdev->lun, | |
833 | scsi_device_type(hdev->devtype)); | |
834 | ||
cca8f13b | 835 | if (hdev->devtype == TYPE_RAID || is_logical_device(hdev)) { |
2708f295 | 836 | output_len += scnprintf(buf + output_len, |
1faf072c RV |
837 | PAGE_SIZE - output_len, |
838 | "%s\n", active); | |
8270b862 JH |
839 | continue; |
840 | } | |
841 | ||
842 | box = hdev->box[i]; | |
843 | memcpy(&phys_connector, &hdev->phys_connector[i], | |
844 | sizeof(phys_connector)); | |
845 | if (phys_connector[0] < '0') | |
846 | phys_connector[0] = '0'; | |
847 | if (phys_connector[1] < '0') | |
848 | phys_connector[1] = '0'; | |
cca8f13b | 849 | output_len += scnprintf(buf + output_len, |
1faf072c | 850 | PAGE_SIZE - output_len, |
8270b862 JH |
851 | "PORT: %.2s ", |
852 | phys_connector); | |
af15ed36 DB |
853 | if ((hdev->devtype == TYPE_DISK || hdev->devtype == TYPE_ZBC) && |
854 | hdev->expose_device) { | |
8270b862 | 855 | if (box == 0 || box == 0xFF) { |
2708f295 | 856 | output_len += scnprintf(buf + output_len, |
1faf072c | 857 | PAGE_SIZE - output_len, |
8270b862 JH |
858 | "BAY: %hhu %s\n", |
859 | bay, active); | |
860 | } else { | |
2708f295 | 861 | output_len += scnprintf(buf + output_len, |
1faf072c | 862 | PAGE_SIZE - output_len, |
8270b862 JH |
863 | "BOX: %hhu BAY: %hhu %s\n", |
864 | box, bay, active); | |
865 | } | |
866 | } else if (box != 0 && box != 0xFF) { | |
2708f295 | 867 | output_len += scnprintf(buf + output_len, |
1faf072c | 868 | PAGE_SIZE - output_len, "BOX: %hhu %s\n", |
8270b862 JH |
869 | box, active); |
870 | } else | |
2708f295 | 871 | output_len += scnprintf(buf + output_len, |
1faf072c | 872 | PAGE_SIZE - output_len, "%s\n", active); |
8270b862 JH |
873 | } |
874 | ||
875 | spin_unlock_irqrestore(&h->devlock, flags); | |
1faf072c | 876 | return output_len; |
8270b862 JH |
877 | } |
878 | ||
16961204 HR |
879 | static ssize_t host_show_ctlr_num(struct device *dev, |
880 | struct device_attribute *attr, char *buf) | |
881 | { | |
882 | struct ctlr_info *h; | |
883 | struct Scsi_Host *shost = class_to_shost(dev); | |
884 | ||
885 | h = shost_to_hba(shost); | |
886 | return snprintf(buf, 20, "%d\n", h->ctlr); | |
887 | } | |
888 | ||
135ae6ed HR |
889 | static ssize_t host_show_legacy_board(struct device *dev, |
890 | struct device_attribute *attr, char *buf) | |
891 | { | |
892 | struct ctlr_info *h; | |
893 | struct Scsi_Host *shost = class_to_shost(dev); | |
894 | ||
895 | h = shost_to_hba(shost); | |
896 | return snprintf(buf, 20, "%d\n", h->legacy_board ? 1 : 0); | |
897 | } | |
898 | ||
3f5eac3a SC |
899 | static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL); |
900 | static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL); | |
901 | static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL); | |
902 | static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan); | |
ded1be4a | 903 | static DEVICE_ATTR(sas_address, S_IRUGO, sas_address_show, NULL); |
c1988684 ST |
904 | static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO, |
905 | host_show_hp_ssd_smart_path_enabled, NULL); | |
8270b862 | 906 | static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL); |
da0697bd ST |
907 | static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR|S_IRUGO|S_IROTH, |
908 | host_show_hp_ssd_smart_path_status, | |
909 | host_store_hp_ssd_smart_path_status); | |
2ba8bfc8 SC |
910 | static DEVICE_ATTR(raid_offload_debug, S_IWUSR, NULL, |
911 | host_store_raid_offload_debug); | |
3f5eac3a SC |
912 | static DEVICE_ATTR(firmware_revision, S_IRUGO, |
913 | host_show_firmware_revision, NULL); | |
914 | static DEVICE_ATTR(commands_outstanding, S_IRUGO, | |
915 | host_show_commands_outstanding, NULL); | |
916 | static DEVICE_ATTR(transport_mode, S_IRUGO, | |
917 | host_show_transport_mode, NULL); | |
941b1cda SC |
918 | static DEVICE_ATTR(resettable, S_IRUGO, |
919 | host_show_resettable, NULL); | |
e985c58f SC |
920 | static DEVICE_ATTR(lockup_detected, S_IRUGO, |
921 | host_show_lockup_detected, NULL); | |
16961204 HR |
922 | static DEVICE_ATTR(ctlr_num, S_IRUGO, |
923 | host_show_ctlr_num, NULL); | |
135ae6ed HR |
924 | static DEVICE_ATTR(legacy_board, S_IRUGO, |
925 | host_show_legacy_board, NULL); | |
3f5eac3a SC |
926 | |
927 | static struct device_attribute *hpsa_sdev_attrs[] = { | |
928 | &dev_attr_raid_level, | |
929 | &dev_attr_lunid, | |
930 | &dev_attr_unique_id, | |
c1988684 | 931 | &dev_attr_hp_ssd_smart_path_enabled, |
8270b862 | 932 | &dev_attr_path_info, |
ded1be4a | 933 | &dev_attr_sas_address, |
3f5eac3a SC |
934 | NULL, |
935 | }; | |
936 | ||
937 | static struct device_attribute *hpsa_shost_attrs[] = { | |
938 | &dev_attr_rescan, | |
939 | &dev_attr_firmware_revision, | |
940 | &dev_attr_commands_outstanding, | |
941 | &dev_attr_transport_mode, | |
941b1cda | 942 | &dev_attr_resettable, |
da0697bd | 943 | &dev_attr_hp_ssd_smart_path_status, |
2ba8bfc8 | 944 | &dev_attr_raid_offload_debug, |
fb53c439 | 945 | &dev_attr_lockup_detected, |
16961204 | 946 | &dev_attr_ctlr_num, |
135ae6ed | 947 | &dev_attr_legacy_board, |
3f5eac3a SC |
948 | NULL, |
949 | }; | |
950 | ||
08ec46f6 DB |
951 | #define HPSA_NRESERVED_CMDS (HPSA_CMDS_RESERVED_FOR_DRIVER +\ |
952 | HPSA_MAX_CONCURRENT_PASSTHRUS) | |
41ce4c35 | 953 | |
3f5eac3a SC |
954 | static struct scsi_host_template hpsa_driver_template = { |
955 | .module = THIS_MODULE, | |
f79cfec6 SC |
956 | .name = HPSA, |
957 | .proc_name = HPSA, | |
3f5eac3a SC |
958 | .queuecommand = hpsa_scsi_queue_command, |
959 | .scan_start = hpsa_scan_start, | |
960 | .scan_finished = hpsa_scan_finished, | |
7c0a0229 | 961 | .change_queue_depth = hpsa_change_queue_depth, |
3f5eac3a SC |
962 | .this_id = -1, |
963 | .use_clustering = ENABLE_CLUSTERING, | |
964 | .eh_device_reset_handler = hpsa_eh_device_reset_handler, | |
965 | .ioctl = hpsa_ioctl, | |
966 | .slave_alloc = hpsa_slave_alloc, | |
41ce4c35 | 967 | .slave_configure = hpsa_slave_configure, |
3f5eac3a SC |
968 | .slave_destroy = hpsa_slave_destroy, |
969 | #ifdef CONFIG_COMPAT | |
970 | .compat_ioctl = hpsa_compat_ioctl, | |
971 | #endif | |
972 | .sdev_attrs = hpsa_sdev_attrs, | |
973 | .shost_attrs = hpsa_shost_attrs, | |
e2c7b433 | 974 | .max_sectors = 1024, |
54b2b50c | 975 | .no_write_same = 1, |
3f5eac3a SC |
976 | }; |
977 | ||
254f796b | 978 | static inline u32 next_command(struct ctlr_info *h, u8 q) |
3f5eac3a SC |
979 | { |
980 | u32 a; | |
072b0518 | 981 | struct reply_queue_buffer *rq = &h->reply_queue[q]; |
3f5eac3a | 982 | |
e1f7de0c MG |
983 | if (h->transMethod & CFGTBL_Trans_io_accel1) |
984 | return h->access.command_completed(h, q); | |
985 | ||
3f5eac3a | 986 | if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) |
254f796b | 987 | return h->access.command_completed(h, q); |
3f5eac3a | 988 | |
254f796b MG |
989 | if ((rq->head[rq->current_entry] & 1) == rq->wraparound) { |
990 | a = rq->head[rq->current_entry]; | |
991 | rq->current_entry++; | |
0cbf768e | 992 | atomic_dec(&h->commands_outstanding); |
3f5eac3a SC |
993 | } else { |
994 | a = FIFO_EMPTY; | |
995 | } | |
996 | /* Check for wraparound */ | |
254f796b MG |
997 | if (rq->current_entry == h->max_commands) { |
998 | rq->current_entry = 0; | |
999 | rq->wraparound ^= 1; | |
3f5eac3a SC |
1000 | } |
1001 | return a; | |
1002 | } | |
1003 | ||
c349775e ST |
1004 | /* |
1005 | * There are some special bits in the bus address of the | |
1006 | * command that we have to set for the controller to know | |
1007 | * how to process the command: | |
1008 | * | |
1009 | * Normal performant mode: | |
1010 | * bit 0: 1 means performant mode, 0 means simple mode. | |
1011 | * bits 1-3 = block fetch table entry | |
1012 | * bits 4-6 = command type (== 0) | |
1013 | * | |
1014 | * ioaccel1 mode: | |
1015 | * bit 0 = "performant mode" bit. | |
1016 | * bits 1-3 = block fetch table entry | |
1017 | * bits 4-6 = command type (== 110) | |
1018 | * (command type is needed because ioaccel1 mode | |
1019 | * commands are submitted through the same register as normal | |
1020 | * mode commands, so this is how the controller knows whether | |
1021 | * the command is normal mode or ioaccel1 mode.) | |
1022 | * | |
1023 | * ioaccel2 mode: | |
1024 | * bit 0 = "performant mode" bit. | |
1025 | * bits 1-4 = block fetch table entry (note extra bit) | |
1026 | * bits 4-6 = not needed, because ioaccel2 mode has | |
1027 | * a separate special register for submitting commands. | |
1028 | */ | |
1029 | ||
25163bd5 WS |
1030 | /* |
1031 | * set_performant_mode: Modify the tag for cciss performant | |
3f5eac3a SC |
1032 | * set bit 0 for pull model, bits 3-1 for block fetch |
1033 | * register number | |
1034 | */ | |
25163bd5 WS |
1035 | #define DEFAULT_REPLY_QUEUE (-1) |
1036 | static void set_performant_mode(struct ctlr_info *h, struct CommandList *c, | |
1037 | int reply_queue) | |
3f5eac3a | 1038 | { |
254f796b | 1039 | if (likely(h->transMethod & CFGTBL_Trans_Performant)) { |
3f5eac3a | 1040 | c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1); |
bc2bb154 | 1041 | if (unlikely(!h->msix_vectors)) |
25163bd5 WS |
1042 | return; |
1043 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) | |
254f796b | 1044 | c->Header.ReplyQueue = |
804a5cb5 | 1045 | raw_smp_processor_id() % h->nreply_queues; |
25163bd5 WS |
1046 | else |
1047 | c->Header.ReplyQueue = reply_queue % h->nreply_queues; | |
254f796b | 1048 | } |
3f5eac3a SC |
1049 | } |
1050 | ||
c349775e | 1051 | static void set_ioaccel1_performant_mode(struct ctlr_info *h, |
25163bd5 WS |
1052 | struct CommandList *c, |
1053 | int reply_queue) | |
c349775e ST |
1054 | { |
1055 | struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex]; | |
1056 | ||
25163bd5 WS |
1057 | /* |
1058 | * Tell the controller to post the reply to the queue for this | |
c349775e ST |
1059 | * processor. This seems to give the best I/O throughput. |
1060 | */ | |
25163bd5 WS |
1061 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) |
1062 | cp->ReplyQueue = smp_processor_id() % h->nreply_queues; | |
1063 | else | |
1064 | cp->ReplyQueue = reply_queue % h->nreply_queues; | |
1065 | /* | |
1066 | * Set the bits in the address sent down to include: | |
c349775e ST |
1067 | * - performant mode bit (bit 0) |
1068 | * - pull count (bits 1-3) | |
1069 | * - command type (bits 4-6) | |
1070 | */ | |
1071 | c->busaddr |= 1 | (h->ioaccel1_blockFetchTable[c->Header.SGList] << 1) | | |
1072 | IOACCEL1_BUSADDR_CMDTYPE; | |
1073 | } | |
1074 | ||
8be986cc SC |
1075 | static void set_ioaccel2_tmf_performant_mode(struct ctlr_info *h, |
1076 | struct CommandList *c, | |
1077 | int reply_queue) | |
1078 | { | |
1079 | struct hpsa_tmf_struct *cp = (struct hpsa_tmf_struct *) | |
1080 | &h->ioaccel2_cmd_pool[c->cmdindex]; | |
1081 | ||
1082 | /* Tell the controller to post the reply to the queue for this | |
1083 | * processor. This seems to give the best I/O throughput. | |
1084 | */ | |
1085 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) | |
1086 | cp->reply_queue = smp_processor_id() % h->nreply_queues; | |
1087 | else | |
1088 | cp->reply_queue = reply_queue % h->nreply_queues; | |
1089 | /* Set the bits in the address sent down to include: | |
1090 | * - performant mode bit not used in ioaccel mode 2 | |
1091 | * - pull count (bits 0-3) | |
1092 | * - command type isn't needed for ioaccel2 | |
1093 | */ | |
1094 | c->busaddr |= h->ioaccel2_blockFetchTable[0]; | |
1095 | } | |
1096 | ||
c349775e | 1097 | static void set_ioaccel2_performant_mode(struct ctlr_info *h, |
25163bd5 WS |
1098 | struct CommandList *c, |
1099 | int reply_queue) | |
c349775e ST |
1100 | { |
1101 | struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
1102 | ||
25163bd5 WS |
1103 | /* |
1104 | * Tell the controller to post the reply to the queue for this | |
c349775e ST |
1105 | * processor. This seems to give the best I/O throughput. |
1106 | */ | |
25163bd5 WS |
1107 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) |
1108 | cp->reply_queue = smp_processor_id() % h->nreply_queues; | |
1109 | else | |
1110 | cp->reply_queue = reply_queue % h->nreply_queues; | |
1111 | /* | |
1112 | * Set the bits in the address sent down to include: | |
c349775e ST |
1113 | * - performant mode bit not used in ioaccel mode 2 |
1114 | * - pull count (bits 0-3) | |
1115 | * - command type isn't needed for ioaccel2 | |
1116 | */ | |
1117 | c->busaddr |= (h->ioaccel2_blockFetchTable[cp->sg_count]); | |
1118 | } | |
1119 | ||
e85c5974 SC |
1120 | static int is_firmware_flash_cmd(u8 *cdb) |
1121 | { | |
1122 | return cdb[0] == BMIC_WRITE && cdb[6] == BMIC_FLASH_FIRMWARE; | |
1123 | } | |
1124 | ||
1125 | /* | |
1126 | * During firmware flash, the heartbeat register may not update as frequently | |
1127 | * as it should. So we dial down lockup detection during firmware flash. and | |
1128 | * dial it back up when firmware flash completes. | |
1129 | */ | |
1130 | #define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ) | |
1131 | #define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ) | |
3d38f00c | 1132 | #define HPSA_EVENT_MONITOR_INTERVAL (15 * HZ) |
e85c5974 SC |
1133 | static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info *h, |
1134 | struct CommandList *c) | |
1135 | { | |
1136 | if (!is_firmware_flash_cmd(c->Request.CDB)) | |
1137 | return; | |
1138 | atomic_inc(&h->firmware_flash_in_progress); | |
1139 | h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH; | |
1140 | } | |
1141 | ||
1142 | static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info *h, | |
1143 | struct CommandList *c) | |
1144 | { | |
1145 | if (is_firmware_flash_cmd(c->Request.CDB) && | |
1146 | atomic_dec_and_test(&h->firmware_flash_in_progress)) | |
1147 | h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL; | |
1148 | } | |
1149 | ||
25163bd5 WS |
1150 | static void __enqueue_cmd_and_start_io(struct ctlr_info *h, |
1151 | struct CommandList *c, int reply_queue) | |
3f5eac3a | 1152 | { |
c05e8866 SC |
1153 | dial_down_lockup_detection_during_fw_flash(h, c); |
1154 | atomic_inc(&h->commands_outstanding); | |
c349775e ST |
1155 | switch (c->cmd_type) { |
1156 | case CMD_IOACCEL1: | |
25163bd5 | 1157 | set_ioaccel1_performant_mode(h, c, reply_queue); |
c05e8866 | 1158 | writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET); |
c349775e ST |
1159 | break; |
1160 | case CMD_IOACCEL2: | |
25163bd5 | 1161 | set_ioaccel2_performant_mode(h, c, reply_queue); |
c05e8866 | 1162 | writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32); |
c349775e | 1163 | break; |
8be986cc SC |
1164 | case IOACCEL2_TMF: |
1165 | set_ioaccel2_tmf_performant_mode(h, c, reply_queue); | |
1166 | writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32); | |
1167 | break; | |
c349775e | 1168 | default: |
25163bd5 | 1169 | set_performant_mode(h, c, reply_queue); |
c05e8866 | 1170 | h->access.submit_command(h, c); |
c349775e | 1171 | } |
3f5eac3a SC |
1172 | } |
1173 | ||
a58e7e53 | 1174 | static void enqueue_cmd_and_start_io(struct ctlr_info *h, struct CommandList *c) |
25163bd5 | 1175 | { |
d604f533 | 1176 | if (unlikely(hpsa_is_pending_event(c))) |
a58e7e53 WS |
1177 | return finish_cmd(c); |
1178 | ||
25163bd5 WS |
1179 | __enqueue_cmd_and_start_io(h, c, DEFAULT_REPLY_QUEUE); |
1180 | } | |
1181 | ||
3f5eac3a SC |
1182 | static inline int is_hba_lunid(unsigned char scsi3addr[]) |
1183 | { | |
1184 | return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0; | |
1185 | } | |
1186 | ||
1187 | static inline int is_scsi_rev_5(struct ctlr_info *h) | |
1188 | { | |
1189 | if (!h->hba_inquiry_data) | |
1190 | return 0; | |
1191 | if ((h->hba_inquiry_data[2] & 0x07) == 5) | |
1192 | return 1; | |
1193 | return 0; | |
1194 | } | |
1195 | ||
edd16368 SC |
1196 | static int hpsa_find_target_lun(struct ctlr_info *h, |
1197 | unsigned char scsi3addr[], int bus, int *target, int *lun) | |
1198 | { | |
1199 | /* finds an unused bus, target, lun for a new physical device | |
1200 | * assumes h->devlock is held | |
1201 | */ | |
1202 | int i, found = 0; | |
cfe5badc | 1203 | DECLARE_BITMAP(lun_taken, HPSA_MAX_DEVICES); |
edd16368 | 1204 | |
263d9401 | 1205 | bitmap_zero(lun_taken, HPSA_MAX_DEVICES); |
edd16368 SC |
1206 | |
1207 | for (i = 0; i < h->ndevices; i++) { | |
1208 | if (h->dev[i]->bus == bus && h->dev[i]->target != -1) | |
263d9401 | 1209 | __set_bit(h->dev[i]->target, lun_taken); |
edd16368 SC |
1210 | } |
1211 | ||
263d9401 AM |
1212 | i = find_first_zero_bit(lun_taken, HPSA_MAX_DEVICES); |
1213 | if (i < HPSA_MAX_DEVICES) { | |
1214 | /* *bus = 1; */ | |
1215 | *target = i; | |
1216 | *lun = 0; | |
1217 | found = 1; | |
edd16368 SC |
1218 | } |
1219 | return !found; | |
1220 | } | |
1221 | ||
1d33d85d | 1222 | static void hpsa_show_dev_msg(const char *level, struct ctlr_info *h, |
0d96ef5f WS |
1223 | struct hpsa_scsi_dev_t *dev, char *description) |
1224 | { | |
7c59a0d4 DB |
1225 | #define LABEL_SIZE 25 |
1226 | char label[LABEL_SIZE]; | |
1227 | ||
9975ec9d DB |
1228 | if (h == NULL || h->pdev == NULL || h->scsi_host == NULL) |
1229 | return; | |
1230 | ||
7c59a0d4 DB |
1231 | switch (dev->devtype) { |
1232 | case TYPE_RAID: | |
1233 | snprintf(label, LABEL_SIZE, "controller"); | |
1234 | break; | |
1235 | case TYPE_ENCLOSURE: | |
1236 | snprintf(label, LABEL_SIZE, "enclosure"); | |
1237 | break; | |
1238 | case TYPE_DISK: | |
af15ed36 | 1239 | case TYPE_ZBC: |
7c59a0d4 DB |
1240 | if (dev->external) |
1241 | snprintf(label, LABEL_SIZE, "external"); | |
1242 | else if (!is_logical_dev_addr_mode(dev->scsi3addr)) | |
1243 | snprintf(label, LABEL_SIZE, "%s", | |
1244 | raid_label[PHYSICAL_DRIVE]); | |
1245 | else | |
1246 | snprintf(label, LABEL_SIZE, "RAID-%s", | |
1247 | dev->raid_level > RAID_UNKNOWN ? "?" : | |
1248 | raid_label[dev->raid_level]); | |
1249 | break; | |
1250 | case TYPE_ROM: | |
1251 | snprintf(label, LABEL_SIZE, "rom"); | |
1252 | break; | |
1253 | case TYPE_TAPE: | |
1254 | snprintf(label, LABEL_SIZE, "tape"); | |
1255 | break; | |
1256 | case TYPE_MEDIUM_CHANGER: | |
1257 | snprintf(label, LABEL_SIZE, "changer"); | |
1258 | break; | |
1259 | default: | |
1260 | snprintf(label, LABEL_SIZE, "UNKNOWN"); | |
1261 | break; | |
1262 | } | |
1263 | ||
0d96ef5f | 1264 | dev_printk(level, &h->pdev->dev, |
7c59a0d4 | 1265 | "scsi %d:%d:%d:%d: %s %s %.8s %.16s %s SSDSmartPathCap%c En%c Exp=%d\n", |
0d96ef5f WS |
1266 | h->scsi_host->host_no, dev->bus, dev->target, dev->lun, |
1267 | description, | |
1268 | scsi_device_type(dev->devtype), | |
1269 | dev->vendor, | |
1270 | dev->model, | |
7c59a0d4 | 1271 | label, |
0d96ef5f WS |
1272 | dev->offload_config ? '+' : '-', |
1273 | dev->offload_enabled ? '+' : '-', | |
2a168208 | 1274 | dev->expose_device); |
0d96ef5f WS |
1275 | } |
1276 | ||
edd16368 | 1277 | /* Add an entry into h->dev[] array. */ |
8aa60681 | 1278 | static int hpsa_scsi_add_entry(struct ctlr_info *h, |
edd16368 SC |
1279 | struct hpsa_scsi_dev_t *device, |
1280 | struct hpsa_scsi_dev_t *added[], int *nadded) | |
1281 | { | |
1282 | /* assumes h->devlock is held */ | |
1283 | int n = h->ndevices; | |
1284 | int i; | |
1285 | unsigned char addr1[8], addr2[8]; | |
1286 | struct hpsa_scsi_dev_t *sd; | |
1287 | ||
cfe5badc | 1288 | if (n >= HPSA_MAX_DEVICES) { |
edd16368 SC |
1289 | dev_err(&h->pdev->dev, "too many devices, some will be " |
1290 | "inaccessible.\n"); | |
1291 | return -1; | |
1292 | } | |
1293 | ||
1294 | /* physical devices do not have lun or target assigned until now. */ | |
1295 | if (device->lun != -1) | |
1296 | /* Logical device, lun is already assigned. */ | |
1297 | goto lun_assigned; | |
1298 | ||
1299 | /* If this device a non-zero lun of a multi-lun device | |
1300 | * byte 4 of the 8-byte LUN addr will contain the logical | |
2b08b3e9 | 1301 | * unit no, zero otherwise. |
edd16368 SC |
1302 | */ |
1303 | if (device->scsi3addr[4] == 0) { | |
1304 | /* This is not a non-zero lun of a multi-lun device */ | |
1305 | if (hpsa_find_target_lun(h, device->scsi3addr, | |
1306 | device->bus, &device->target, &device->lun) != 0) | |
1307 | return -1; | |
1308 | goto lun_assigned; | |
1309 | } | |
1310 | ||
1311 | /* This is a non-zero lun of a multi-lun device. | |
1312 | * Search through our list and find the device which | |
9a4178b7 | 1313 | * has the same 8 byte LUN address, excepting byte 4 and 5. |
edd16368 SC |
1314 | * Assign the same bus and target for this new LUN. |
1315 | * Use the logical unit number from the firmware. | |
1316 | */ | |
1317 | memcpy(addr1, device->scsi3addr, 8); | |
1318 | addr1[4] = 0; | |
9a4178b7 | 1319 | addr1[5] = 0; |
edd16368 SC |
1320 | for (i = 0; i < n; i++) { |
1321 | sd = h->dev[i]; | |
1322 | memcpy(addr2, sd->scsi3addr, 8); | |
1323 | addr2[4] = 0; | |
9a4178b7 | 1324 | addr2[5] = 0; |
1325 | /* differ only in byte 4 and 5? */ | |
edd16368 SC |
1326 | if (memcmp(addr1, addr2, 8) == 0) { |
1327 | device->bus = sd->bus; | |
1328 | device->target = sd->target; | |
1329 | device->lun = device->scsi3addr[4]; | |
1330 | break; | |
1331 | } | |
1332 | } | |
1333 | if (device->lun == -1) { | |
1334 | dev_warn(&h->pdev->dev, "physical device with no LUN=0," | |
1335 | " suspect firmware bug or unsupported hardware " | |
1336 | "configuration.\n"); | |
1337 | return -1; | |
1338 | } | |
1339 | ||
1340 | lun_assigned: | |
1341 | ||
1342 | h->dev[n] = device; | |
1343 | h->ndevices++; | |
1344 | added[*nadded] = device; | |
1345 | (*nadded)++; | |
0d96ef5f | 1346 | hpsa_show_dev_msg(KERN_INFO, h, device, |
2a168208 | 1347 | device->expose_device ? "added" : "masked"); |
a473d86c RE |
1348 | device->offload_to_be_enabled = device->offload_enabled; |
1349 | device->offload_enabled = 0; | |
edd16368 SC |
1350 | return 0; |
1351 | } | |
1352 | ||
bd9244f7 | 1353 | /* Update an entry in h->dev[] array. */ |
8aa60681 | 1354 | static void hpsa_scsi_update_entry(struct ctlr_info *h, |
bd9244f7 ST |
1355 | int entry, struct hpsa_scsi_dev_t *new_entry) |
1356 | { | |
a473d86c | 1357 | int offload_enabled; |
bd9244f7 ST |
1358 | /* assumes h->devlock is held */ |
1359 | BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); | |
1360 | ||
1361 | /* Raid level changed. */ | |
1362 | h->dev[entry]->raid_level = new_entry->raid_level; | |
250fb125 | 1363 | |
03383736 DB |
1364 | /* Raid offload parameters changed. Careful about the ordering. */ |
1365 | if (new_entry->offload_config && new_entry->offload_enabled) { | |
1366 | /* | |
1367 | * if drive is newly offload_enabled, we want to copy the | |
1368 | * raid map data first. If previously offload_enabled and | |
1369 | * offload_config were set, raid map data had better be | |
1370 | * the same as it was before. if raid map data is changed | |
1371 | * then it had better be the case that | |
1372 | * h->dev[entry]->offload_enabled is currently 0. | |
1373 | */ | |
1374 | h->dev[entry]->raid_map = new_entry->raid_map; | |
1375 | h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle; | |
03383736 | 1376 | } |
a3144e0b JH |
1377 | if (new_entry->hba_ioaccel_enabled) { |
1378 | h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle; | |
1379 | wmb(); /* set ioaccel_handle *before* hba_ioaccel_enabled */ | |
1380 | } | |
1381 | h->dev[entry]->hba_ioaccel_enabled = new_entry->hba_ioaccel_enabled; | |
250fb125 | 1382 | h->dev[entry]->offload_config = new_entry->offload_config; |
9fb0de2d | 1383 | h->dev[entry]->offload_to_mirror = new_entry->offload_to_mirror; |
03383736 | 1384 | h->dev[entry]->queue_depth = new_entry->queue_depth; |
250fb125 | 1385 | |
41ce4c35 SC |
1386 | /* |
1387 | * We can turn off ioaccel offload now, but need to delay turning | |
1388 | * it on until we can update h->dev[entry]->phys_disk[], but we | |
1389 | * can't do that until all the devices are updated. | |
1390 | */ | |
1391 | h->dev[entry]->offload_to_be_enabled = new_entry->offload_enabled; | |
1392 | if (!new_entry->offload_enabled) | |
1393 | h->dev[entry]->offload_enabled = 0; | |
1394 | ||
a473d86c RE |
1395 | offload_enabled = h->dev[entry]->offload_enabled; |
1396 | h->dev[entry]->offload_enabled = h->dev[entry]->offload_to_be_enabled; | |
0d96ef5f | 1397 | hpsa_show_dev_msg(KERN_INFO, h, h->dev[entry], "updated"); |
a473d86c | 1398 | h->dev[entry]->offload_enabled = offload_enabled; |
bd9244f7 ST |
1399 | } |
1400 | ||
2a8ccf31 | 1401 | /* Replace an entry from h->dev[] array. */ |
8aa60681 | 1402 | static void hpsa_scsi_replace_entry(struct ctlr_info *h, |
2a8ccf31 SC |
1403 | int entry, struct hpsa_scsi_dev_t *new_entry, |
1404 | struct hpsa_scsi_dev_t *added[], int *nadded, | |
1405 | struct hpsa_scsi_dev_t *removed[], int *nremoved) | |
1406 | { | |
1407 | /* assumes h->devlock is held */ | |
cfe5badc | 1408 | BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); |
2a8ccf31 SC |
1409 | removed[*nremoved] = h->dev[entry]; |
1410 | (*nremoved)++; | |
01350d05 SC |
1411 | |
1412 | /* | |
1413 | * New physical devices won't have target/lun assigned yet | |
1414 | * so we need to preserve the values in the slot we are replacing. | |
1415 | */ | |
1416 | if (new_entry->target == -1) { | |
1417 | new_entry->target = h->dev[entry]->target; | |
1418 | new_entry->lun = h->dev[entry]->lun; | |
1419 | } | |
1420 | ||
2a8ccf31 SC |
1421 | h->dev[entry] = new_entry; |
1422 | added[*nadded] = new_entry; | |
1423 | (*nadded)++; | |
0d96ef5f | 1424 | hpsa_show_dev_msg(KERN_INFO, h, new_entry, "replaced"); |
a473d86c RE |
1425 | new_entry->offload_to_be_enabled = new_entry->offload_enabled; |
1426 | new_entry->offload_enabled = 0; | |
2a8ccf31 SC |
1427 | } |
1428 | ||
edd16368 | 1429 | /* Remove an entry from h->dev[] array. */ |
8aa60681 | 1430 | static void hpsa_scsi_remove_entry(struct ctlr_info *h, int entry, |
edd16368 SC |
1431 | struct hpsa_scsi_dev_t *removed[], int *nremoved) |
1432 | { | |
1433 | /* assumes h->devlock is held */ | |
1434 | int i; | |
1435 | struct hpsa_scsi_dev_t *sd; | |
1436 | ||
cfe5badc | 1437 | BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); |
edd16368 SC |
1438 | |
1439 | sd = h->dev[entry]; | |
1440 | removed[*nremoved] = h->dev[entry]; | |
1441 | (*nremoved)++; | |
1442 | ||
1443 | for (i = entry; i < h->ndevices-1; i++) | |
1444 | h->dev[i] = h->dev[i+1]; | |
1445 | h->ndevices--; | |
0d96ef5f | 1446 | hpsa_show_dev_msg(KERN_INFO, h, sd, "removed"); |
edd16368 SC |
1447 | } |
1448 | ||
1449 | #define SCSI3ADDR_EQ(a, b) ( \ | |
1450 | (a)[7] == (b)[7] && \ | |
1451 | (a)[6] == (b)[6] && \ | |
1452 | (a)[5] == (b)[5] && \ | |
1453 | (a)[4] == (b)[4] && \ | |
1454 | (a)[3] == (b)[3] && \ | |
1455 | (a)[2] == (b)[2] && \ | |
1456 | (a)[1] == (b)[1] && \ | |
1457 | (a)[0] == (b)[0]) | |
1458 | ||
1459 | static void fixup_botched_add(struct ctlr_info *h, | |
1460 | struct hpsa_scsi_dev_t *added) | |
1461 | { | |
1462 | /* called when scsi_add_device fails in order to re-adjust | |
1463 | * h->dev[] to match the mid layer's view. | |
1464 | */ | |
1465 | unsigned long flags; | |
1466 | int i, j; | |
1467 | ||
1468 | spin_lock_irqsave(&h->lock, flags); | |
1469 | for (i = 0; i < h->ndevices; i++) { | |
1470 | if (h->dev[i] == added) { | |
1471 | for (j = i; j < h->ndevices-1; j++) | |
1472 | h->dev[j] = h->dev[j+1]; | |
1473 | h->ndevices--; | |
1474 | break; | |
1475 | } | |
1476 | } | |
1477 | spin_unlock_irqrestore(&h->lock, flags); | |
1478 | kfree(added); | |
1479 | } | |
1480 | ||
1481 | static inline int device_is_the_same(struct hpsa_scsi_dev_t *dev1, | |
1482 | struct hpsa_scsi_dev_t *dev2) | |
1483 | { | |
edd16368 SC |
1484 | /* we compare everything except lun and target as these |
1485 | * are not yet assigned. Compare parts likely | |
1486 | * to differ first | |
1487 | */ | |
1488 | if (memcmp(dev1->scsi3addr, dev2->scsi3addr, | |
1489 | sizeof(dev1->scsi3addr)) != 0) | |
1490 | return 0; | |
1491 | if (memcmp(dev1->device_id, dev2->device_id, | |
1492 | sizeof(dev1->device_id)) != 0) | |
1493 | return 0; | |
1494 | if (memcmp(dev1->model, dev2->model, sizeof(dev1->model)) != 0) | |
1495 | return 0; | |
1496 | if (memcmp(dev1->vendor, dev2->vendor, sizeof(dev1->vendor)) != 0) | |
1497 | return 0; | |
edd16368 SC |
1498 | if (dev1->devtype != dev2->devtype) |
1499 | return 0; | |
edd16368 SC |
1500 | if (dev1->bus != dev2->bus) |
1501 | return 0; | |
1502 | return 1; | |
1503 | } | |
1504 | ||
bd9244f7 ST |
1505 | static inline int device_updated(struct hpsa_scsi_dev_t *dev1, |
1506 | struct hpsa_scsi_dev_t *dev2) | |
1507 | { | |
1508 | /* Device attributes that can change, but don't mean | |
1509 | * that the device is a different device, nor that the OS | |
1510 | * needs to be told anything about the change. | |
1511 | */ | |
1512 | if (dev1->raid_level != dev2->raid_level) | |
1513 | return 1; | |
250fb125 SC |
1514 | if (dev1->offload_config != dev2->offload_config) |
1515 | return 1; | |
1516 | if (dev1->offload_enabled != dev2->offload_enabled) | |
1517 | return 1; | |
93849508 DB |
1518 | if (!is_logical_dev_addr_mode(dev1->scsi3addr)) |
1519 | if (dev1->queue_depth != dev2->queue_depth) | |
1520 | return 1; | |
bd9244f7 ST |
1521 | return 0; |
1522 | } | |
1523 | ||
edd16368 SC |
1524 | /* Find needle in haystack. If exact match found, return DEVICE_SAME, |
1525 | * and return needle location in *index. If scsi3addr matches, but not | |
1526 | * vendor, model, serial num, etc. return DEVICE_CHANGED, and return needle | |
bd9244f7 ST |
1527 | * location in *index. |
1528 | * In the case of a minor device attribute change, such as RAID level, just | |
1529 | * return DEVICE_UPDATED, along with the updated device's location in index. | |
1530 | * If needle not found, return DEVICE_NOT_FOUND. | |
edd16368 SC |
1531 | */ |
1532 | static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t *needle, | |
1533 | struct hpsa_scsi_dev_t *haystack[], int haystack_size, | |
1534 | int *index) | |
1535 | { | |
1536 | int i; | |
1537 | #define DEVICE_NOT_FOUND 0 | |
1538 | #define DEVICE_CHANGED 1 | |
1539 | #define DEVICE_SAME 2 | |
bd9244f7 | 1540 | #define DEVICE_UPDATED 3 |
1d33d85d DB |
1541 | if (needle == NULL) |
1542 | return DEVICE_NOT_FOUND; | |
1543 | ||
edd16368 | 1544 | for (i = 0; i < haystack_size; i++) { |
23231048 SC |
1545 | if (haystack[i] == NULL) /* previously removed. */ |
1546 | continue; | |
edd16368 SC |
1547 | if (SCSI3ADDR_EQ(needle->scsi3addr, haystack[i]->scsi3addr)) { |
1548 | *index = i; | |
bd9244f7 ST |
1549 | if (device_is_the_same(needle, haystack[i])) { |
1550 | if (device_updated(needle, haystack[i])) | |
1551 | return DEVICE_UPDATED; | |
edd16368 | 1552 | return DEVICE_SAME; |
bd9244f7 | 1553 | } else { |
9846590e SC |
1554 | /* Keep offline devices offline */ |
1555 | if (needle->volume_offline) | |
1556 | return DEVICE_NOT_FOUND; | |
edd16368 | 1557 | return DEVICE_CHANGED; |
bd9244f7 | 1558 | } |
edd16368 SC |
1559 | } |
1560 | } | |
1561 | *index = -1; | |
1562 | return DEVICE_NOT_FOUND; | |
1563 | } | |
1564 | ||
9846590e SC |
1565 | static void hpsa_monitor_offline_device(struct ctlr_info *h, |
1566 | unsigned char scsi3addr[]) | |
1567 | { | |
1568 | struct offline_device_entry *device; | |
1569 | unsigned long flags; | |
1570 | ||
1571 | /* Check to see if device is already on the list */ | |
1572 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
1573 | list_for_each_entry(device, &h->offline_device_list, offline_list) { | |
1574 | if (memcmp(device->scsi3addr, scsi3addr, | |
1575 | sizeof(device->scsi3addr)) == 0) { | |
1576 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
1577 | return; | |
1578 | } | |
1579 | } | |
1580 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
1581 | ||
1582 | /* Device is not on the list, add it. */ | |
1583 | device = kmalloc(sizeof(*device), GFP_KERNEL); | |
7e8a9486 | 1584 | if (!device) |
9846590e | 1585 | return; |
7e8a9486 | 1586 | |
9846590e SC |
1587 | memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); |
1588 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
1589 | list_add_tail(&device->offline_list, &h->offline_device_list); | |
1590 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
1591 | } | |
1592 | ||
1593 | /* Print a message explaining various offline volume states */ | |
1594 | static void hpsa_show_volume_status(struct ctlr_info *h, | |
1595 | struct hpsa_scsi_dev_t *sd) | |
1596 | { | |
1597 | if (sd->volume_offline == HPSA_VPD_LV_STATUS_UNSUPPORTED) | |
1598 | dev_info(&h->pdev->dev, | |
1599 | "C%d:B%d:T%d:L%d Volume status is not available through vital product data pages.\n", | |
1600 | h->scsi_host->host_no, | |
1601 | sd->bus, sd->target, sd->lun); | |
1602 | switch (sd->volume_offline) { | |
1603 | case HPSA_LV_OK: | |
1604 | break; | |
1605 | case HPSA_LV_UNDERGOING_ERASE: | |
1606 | dev_info(&h->pdev->dev, | |
1607 | "C%d:B%d:T%d:L%d Volume is undergoing background erase process.\n", | |
1608 | h->scsi_host->host_no, | |
1609 | sd->bus, sd->target, sd->lun); | |
1610 | break; | |
5ca01204 SB |
1611 | case HPSA_LV_NOT_AVAILABLE: |
1612 | dev_info(&h->pdev->dev, | |
1613 | "C%d:B%d:T%d:L%d Volume is waiting for transforming volume.\n", | |
1614 | h->scsi_host->host_no, | |
1615 | sd->bus, sd->target, sd->lun); | |
1616 | break; | |
9846590e SC |
1617 | case HPSA_LV_UNDERGOING_RPI: |
1618 | dev_info(&h->pdev->dev, | |
5ca01204 | 1619 | "C%d:B%d:T%d:L%d Volume is undergoing rapid parity init.\n", |
9846590e SC |
1620 | h->scsi_host->host_no, |
1621 | sd->bus, sd->target, sd->lun); | |
1622 | break; | |
1623 | case HPSA_LV_PENDING_RPI: | |
1624 | dev_info(&h->pdev->dev, | |
5ca01204 SB |
1625 | "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n", |
1626 | h->scsi_host->host_no, | |
1627 | sd->bus, sd->target, sd->lun); | |
9846590e SC |
1628 | break; |
1629 | case HPSA_LV_ENCRYPTED_NO_KEY: | |
1630 | dev_info(&h->pdev->dev, | |
1631 | "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because key is not present.\n", | |
1632 | h->scsi_host->host_no, | |
1633 | sd->bus, sd->target, sd->lun); | |
1634 | break; | |
1635 | case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER: | |
1636 | dev_info(&h->pdev->dev, | |
1637 | "C%d:B%d:T%d:L%d Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.\n", | |
1638 | h->scsi_host->host_no, | |
1639 | sd->bus, sd->target, sd->lun); | |
1640 | break; | |
1641 | case HPSA_LV_UNDERGOING_ENCRYPTION: | |
1642 | dev_info(&h->pdev->dev, | |
1643 | "C%d:B%d:T%d:L%d Volume is undergoing encryption process.\n", | |
1644 | h->scsi_host->host_no, | |
1645 | sd->bus, sd->target, sd->lun); | |
1646 | break; | |
1647 | case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING: | |
1648 | dev_info(&h->pdev->dev, | |
1649 | "C%d:B%d:T%d:L%d Volume is undergoing encryption re-keying process.\n", | |
1650 | h->scsi_host->host_no, | |
1651 | sd->bus, sd->target, sd->lun); | |
1652 | break; | |
1653 | case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: | |
1654 | dev_info(&h->pdev->dev, | |
1655 | "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because controller does not have encryption enabled.\n", | |
1656 | h->scsi_host->host_no, | |
1657 | sd->bus, sd->target, sd->lun); | |
1658 | break; | |
1659 | case HPSA_LV_PENDING_ENCRYPTION: | |
1660 | dev_info(&h->pdev->dev, | |
1661 | "C%d:B%d:T%d:L%d Volume is pending migration to encrypted state, but process has not started.\n", | |
1662 | h->scsi_host->host_no, | |
1663 | sd->bus, sd->target, sd->lun); | |
1664 | break; | |
1665 | case HPSA_LV_PENDING_ENCRYPTION_REKEYING: | |
1666 | dev_info(&h->pdev->dev, | |
1667 | "C%d:B%d:T%d:L%d Volume is encrypted and is pending encryption rekeying.\n", | |
1668 | h->scsi_host->host_no, | |
1669 | sd->bus, sd->target, sd->lun); | |
1670 | break; | |
1671 | } | |
1672 | } | |
1673 | ||
03383736 DB |
1674 | /* |
1675 | * Figure the list of physical drive pointers for a logical drive with | |
1676 | * raid offload configured. | |
1677 | */ | |
1678 | static void hpsa_figure_phys_disk_ptrs(struct ctlr_info *h, | |
1679 | struct hpsa_scsi_dev_t *dev[], int ndevices, | |
1680 | struct hpsa_scsi_dev_t *logical_drive) | |
1681 | { | |
1682 | struct raid_map_data *map = &logical_drive->raid_map; | |
1683 | struct raid_map_disk_data *dd = &map->data[0]; | |
1684 | int i, j; | |
1685 | int total_disks_per_row = le16_to_cpu(map->data_disks_per_row) + | |
1686 | le16_to_cpu(map->metadata_disks_per_row); | |
1687 | int nraid_map_entries = le16_to_cpu(map->row_cnt) * | |
1688 | le16_to_cpu(map->layout_map_count) * | |
1689 | total_disks_per_row; | |
1690 | int nphys_disk = le16_to_cpu(map->layout_map_count) * | |
1691 | total_disks_per_row; | |
1692 | int qdepth; | |
1693 | ||
1694 | if (nraid_map_entries > RAID_MAP_MAX_ENTRIES) | |
1695 | nraid_map_entries = RAID_MAP_MAX_ENTRIES; | |
1696 | ||
d604f533 WS |
1697 | logical_drive->nphysical_disks = nraid_map_entries; |
1698 | ||
03383736 DB |
1699 | qdepth = 0; |
1700 | for (i = 0; i < nraid_map_entries; i++) { | |
1701 | logical_drive->phys_disk[i] = NULL; | |
1702 | if (!logical_drive->offload_config) | |
1703 | continue; | |
1704 | for (j = 0; j < ndevices; j++) { | |
1d33d85d DB |
1705 | if (dev[j] == NULL) |
1706 | continue; | |
ff615f06 PK |
1707 | if (dev[j]->devtype != TYPE_DISK && |
1708 | dev[j]->devtype != TYPE_ZBC) | |
af15ed36 | 1709 | continue; |
f3f01730 | 1710 | if (is_logical_device(dev[j])) |
03383736 DB |
1711 | continue; |
1712 | if (dev[j]->ioaccel_handle != dd[i].ioaccel_handle) | |
1713 | continue; | |
1714 | ||
1715 | logical_drive->phys_disk[i] = dev[j]; | |
1716 | if (i < nphys_disk) | |
1717 | qdepth = min(h->nr_cmds, qdepth + | |
1718 | logical_drive->phys_disk[i]->queue_depth); | |
1719 | break; | |
1720 | } | |
1721 | ||
1722 | /* | |
1723 | * This can happen if a physical drive is removed and | |
1724 | * the logical drive is degraded. In that case, the RAID | |
1725 | * map data will refer to a physical disk which isn't actually | |
1726 | * present. And in that case offload_enabled should already | |
1727 | * be 0, but we'll turn it off here just in case | |
1728 | */ | |
1729 | if (!logical_drive->phys_disk[i]) { | |
1730 | logical_drive->offload_enabled = 0; | |
41ce4c35 SC |
1731 | logical_drive->offload_to_be_enabled = 0; |
1732 | logical_drive->queue_depth = 8; | |
03383736 DB |
1733 | } |
1734 | } | |
1735 | if (nraid_map_entries) | |
1736 | /* | |
1737 | * This is correct for reads, too high for full stripe writes, | |
1738 | * way too high for partial stripe writes | |
1739 | */ | |
1740 | logical_drive->queue_depth = qdepth; | |
1741 | else | |
1742 | logical_drive->queue_depth = h->nr_cmds; | |
1743 | } | |
1744 | ||
1745 | static void hpsa_update_log_drive_phys_drive_ptrs(struct ctlr_info *h, | |
1746 | struct hpsa_scsi_dev_t *dev[], int ndevices) | |
1747 | { | |
1748 | int i; | |
1749 | ||
1750 | for (i = 0; i < ndevices; i++) { | |
1d33d85d DB |
1751 | if (dev[i] == NULL) |
1752 | continue; | |
ff615f06 PK |
1753 | if (dev[i]->devtype != TYPE_DISK && |
1754 | dev[i]->devtype != TYPE_ZBC) | |
af15ed36 | 1755 | continue; |
f3f01730 | 1756 | if (!is_logical_device(dev[i])) |
03383736 | 1757 | continue; |
41ce4c35 SC |
1758 | |
1759 | /* | |
1760 | * If offload is currently enabled, the RAID map and | |
1761 | * phys_disk[] assignment *better* not be changing | |
1762 | * and since it isn't changing, we do not need to | |
1763 | * update it. | |
1764 | */ | |
1765 | if (dev[i]->offload_enabled) | |
1766 | continue; | |
1767 | ||
03383736 DB |
1768 | hpsa_figure_phys_disk_ptrs(h, dev, ndevices, dev[i]); |
1769 | } | |
1770 | } | |
1771 | ||
096ccff4 KB |
1772 | static int hpsa_add_device(struct ctlr_info *h, struct hpsa_scsi_dev_t *device) |
1773 | { | |
1774 | int rc = 0; | |
1775 | ||
1776 | if (!h->scsi_host) | |
1777 | return 1; | |
1778 | ||
d04e62b9 KB |
1779 | if (is_logical_device(device)) /* RAID */ |
1780 | rc = scsi_add_device(h->scsi_host, device->bus, | |
096ccff4 | 1781 | device->target, device->lun); |
d04e62b9 KB |
1782 | else /* HBA */ |
1783 | rc = hpsa_add_sas_device(h->sas_host, device); | |
1784 | ||
096ccff4 KB |
1785 | return rc; |
1786 | } | |
1787 | ||
ba74fdc4 DB |
1788 | static int hpsa_find_outstanding_commands_for_dev(struct ctlr_info *h, |
1789 | struct hpsa_scsi_dev_t *dev) | |
1790 | { | |
1791 | int i; | |
1792 | int count = 0; | |
1793 | ||
1794 | for (i = 0; i < h->nr_cmds; i++) { | |
1795 | struct CommandList *c = h->cmd_pool + i; | |
1796 | int refcount = atomic_inc_return(&c->refcount); | |
1797 | ||
1798 | if (refcount > 1 && hpsa_cmd_dev_match(h, c, dev, | |
1799 | dev->scsi3addr)) { | |
1800 | unsigned long flags; | |
1801 | ||
1802 | spin_lock_irqsave(&h->lock, flags); /* Implied MB */ | |
1803 | if (!hpsa_is_cmd_idle(c)) | |
1804 | ++count; | |
1805 | spin_unlock_irqrestore(&h->lock, flags); | |
1806 | } | |
1807 | ||
1808 | cmd_free(h, c); | |
1809 | } | |
1810 | ||
1811 | return count; | |
1812 | } | |
1813 | ||
1814 | static void hpsa_wait_for_outstanding_commands_for_dev(struct ctlr_info *h, | |
1815 | struct hpsa_scsi_dev_t *device) | |
1816 | { | |
1817 | int cmds = 0; | |
1818 | int waits = 0; | |
1819 | ||
1820 | while (1) { | |
1821 | cmds = hpsa_find_outstanding_commands_for_dev(h, device); | |
1822 | if (cmds == 0) | |
1823 | break; | |
1824 | if (++waits > 20) | |
1825 | break; | |
1826 | dev_warn(&h->pdev->dev, | |
1827 | "%s: removing device with %d outstanding commands!\n", | |
1828 | __func__, cmds); | |
1829 | msleep(1000); | |
1830 | } | |
1831 | } | |
1832 | ||
096ccff4 KB |
1833 | static void hpsa_remove_device(struct ctlr_info *h, |
1834 | struct hpsa_scsi_dev_t *device) | |
1835 | { | |
1836 | struct scsi_device *sdev = NULL; | |
1837 | ||
1838 | if (!h->scsi_host) | |
1839 | return; | |
1840 | ||
d04e62b9 KB |
1841 | if (is_logical_device(device)) { /* RAID */ |
1842 | sdev = scsi_device_lookup(h->scsi_host, device->bus, | |
096ccff4 | 1843 | device->target, device->lun); |
d04e62b9 KB |
1844 | if (sdev) { |
1845 | scsi_remove_device(sdev); | |
1846 | scsi_device_put(sdev); | |
1847 | } else { | |
1848 | /* | |
1849 | * We don't expect to get here. Future commands | |
1850 | * to this device will get a selection timeout as | |
1851 | * if the device were gone. | |
1852 | */ | |
1853 | hpsa_show_dev_msg(KERN_WARNING, h, device, | |
096ccff4 | 1854 | "didn't find device for removal."); |
d04e62b9 | 1855 | } |
ba74fdc4 DB |
1856 | } else { /* HBA */ |
1857 | ||
1858 | device->removed = 1; | |
1859 | hpsa_wait_for_outstanding_commands_for_dev(h, device); | |
1860 | ||
d04e62b9 | 1861 | hpsa_remove_sas_device(device); |
ba74fdc4 | 1862 | } |
096ccff4 KB |
1863 | } |
1864 | ||
8aa60681 | 1865 | static void adjust_hpsa_scsi_table(struct ctlr_info *h, |
edd16368 SC |
1866 | struct hpsa_scsi_dev_t *sd[], int nsds) |
1867 | { | |
1868 | /* sd contains scsi3 addresses and devtypes, and inquiry | |
1869 | * data. This function takes what's in sd to be the current | |
1870 | * reality and updates h->dev[] to reflect that reality. | |
1871 | */ | |
1872 | int i, entry, device_change, changes = 0; | |
1873 | struct hpsa_scsi_dev_t *csd; | |
1874 | unsigned long flags; | |
1875 | struct hpsa_scsi_dev_t **added, **removed; | |
1876 | int nadded, nremoved; | |
edd16368 | 1877 | |
da03ded0 DB |
1878 | /* |
1879 | * A reset can cause a device status to change | |
1880 | * re-schedule the scan to see what happened. | |
1881 | */ | |
c59d04f3 | 1882 | spin_lock_irqsave(&h->reset_lock, flags); |
da03ded0 DB |
1883 | if (h->reset_in_progress) { |
1884 | h->drv_req_rescan = 1; | |
c59d04f3 | 1885 | spin_unlock_irqrestore(&h->reset_lock, flags); |
da03ded0 DB |
1886 | return; |
1887 | } | |
c59d04f3 | 1888 | spin_unlock_irqrestore(&h->reset_lock, flags); |
edd16368 | 1889 | |
cfe5badc ST |
1890 | added = kzalloc(sizeof(*added) * HPSA_MAX_DEVICES, GFP_KERNEL); |
1891 | removed = kzalloc(sizeof(*removed) * HPSA_MAX_DEVICES, GFP_KERNEL); | |
edd16368 SC |
1892 | |
1893 | if (!added || !removed) { | |
1894 | dev_warn(&h->pdev->dev, "out of memory in " | |
1895 | "adjust_hpsa_scsi_table\n"); | |
1896 | goto free_and_out; | |
1897 | } | |
1898 | ||
1899 | spin_lock_irqsave(&h->devlock, flags); | |
1900 | ||
1901 | /* find any devices in h->dev[] that are not in | |
1902 | * sd[] and remove them from h->dev[], and for any | |
1903 | * devices which have changed, remove the old device | |
1904 | * info and add the new device info. | |
bd9244f7 ST |
1905 | * If minor device attributes change, just update |
1906 | * the existing device structure. | |
edd16368 SC |
1907 | */ |
1908 | i = 0; | |
1909 | nremoved = 0; | |
1910 | nadded = 0; | |
1911 | while (i < h->ndevices) { | |
1912 | csd = h->dev[i]; | |
1913 | device_change = hpsa_scsi_find_entry(csd, sd, nsds, &entry); | |
1914 | if (device_change == DEVICE_NOT_FOUND) { | |
1915 | changes++; | |
8aa60681 | 1916 | hpsa_scsi_remove_entry(h, i, removed, &nremoved); |
edd16368 SC |
1917 | continue; /* remove ^^^, hence i not incremented */ |
1918 | } else if (device_change == DEVICE_CHANGED) { | |
1919 | changes++; | |
8aa60681 | 1920 | hpsa_scsi_replace_entry(h, i, sd[entry], |
2a8ccf31 | 1921 | added, &nadded, removed, &nremoved); |
c7f172dc SC |
1922 | /* Set it to NULL to prevent it from being freed |
1923 | * at the bottom of hpsa_update_scsi_devices() | |
1924 | */ | |
1925 | sd[entry] = NULL; | |
bd9244f7 | 1926 | } else if (device_change == DEVICE_UPDATED) { |
8aa60681 | 1927 | hpsa_scsi_update_entry(h, i, sd[entry]); |
edd16368 SC |
1928 | } |
1929 | i++; | |
1930 | } | |
1931 | ||
1932 | /* Now, make sure every device listed in sd[] is also | |
1933 | * listed in h->dev[], adding them if they aren't found | |
1934 | */ | |
1935 | ||
1936 | for (i = 0; i < nsds; i++) { | |
1937 | if (!sd[i]) /* if already added above. */ | |
1938 | continue; | |
9846590e SC |
1939 | |
1940 | /* Don't add devices which are NOT READY, FORMAT IN PROGRESS | |
1941 | * as the SCSI mid-layer does not handle such devices well. | |
1942 | * It relentlessly loops sending TUR at 3Hz, then READ(10) | |
1943 | * at 160Hz, and prevents the system from coming up. | |
1944 | */ | |
1945 | if (sd[i]->volume_offline) { | |
1946 | hpsa_show_volume_status(h, sd[i]); | |
0d96ef5f | 1947 | hpsa_show_dev_msg(KERN_INFO, h, sd[i], "offline"); |
9846590e SC |
1948 | continue; |
1949 | } | |
1950 | ||
edd16368 SC |
1951 | device_change = hpsa_scsi_find_entry(sd[i], h->dev, |
1952 | h->ndevices, &entry); | |
1953 | if (device_change == DEVICE_NOT_FOUND) { | |
1954 | changes++; | |
8aa60681 | 1955 | if (hpsa_scsi_add_entry(h, sd[i], added, &nadded) != 0) |
edd16368 SC |
1956 | break; |
1957 | sd[i] = NULL; /* prevent from being freed later. */ | |
1958 | } else if (device_change == DEVICE_CHANGED) { | |
1959 | /* should never happen... */ | |
1960 | changes++; | |
1961 | dev_warn(&h->pdev->dev, | |
1962 | "device unexpectedly changed.\n"); | |
1963 | /* but if it does happen, we just ignore that device */ | |
1964 | } | |
1965 | } | |
41ce4c35 SC |
1966 | hpsa_update_log_drive_phys_drive_ptrs(h, h->dev, h->ndevices); |
1967 | ||
1968 | /* Now that h->dev[]->phys_disk[] is coherent, we can enable | |
1969 | * any logical drives that need it enabled. | |
1970 | */ | |
1d33d85d DB |
1971 | for (i = 0; i < h->ndevices; i++) { |
1972 | if (h->dev[i] == NULL) | |
1973 | continue; | |
41ce4c35 | 1974 | h->dev[i]->offload_enabled = h->dev[i]->offload_to_be_enabled; |
1d33d85d | 1975 | } |
41ce4c35 | 1976 | |
edd16368 SC |
1977 | spin_unlock_irqrestore(&h->devlock, flags); |
1978 | ||
9846590e SC |
1979 | /* Monitor devices which are in one of several NOT READY states to be |
1980 | * brought online later. This must be done without holding h->devlock, | |
1981 | * so don't touch h->dev[] | |
1982 | */ | |
1983 | for (i = 0; i < nsds; i++) { | |
1984 | if (!sd[i]) /* if already added above. */ | |
1985 | continue; | |
1986 | if (sd[i]->volume_offline) | |
1987 | hpsa_monitor_offline_device(h, sd[i]->scsi3addr); | |
1988 | } | |
1989 | ||
edd16368 SC |
1990 | /* Don't notify scsi mid layer of any changes the first time through |
1991 | * (or if there are no changes) scsi_scan_host will do it later the | |
1992 | * first time through. | |
1993 | */ | |
8aa60681 | 1994 | if (!changes) |
edd16368 SC |
1995 | goto free_and_out; |
1996 | ||
edd16368 SC |
1997 | /* Notify scsi mid layer of any removed devices */ |
1998 | for (i = 0; i < nremoved; i++) { | |
1d33d85d DB |
1999 | if (removed[i] == NULL) |
2000 | continue; | |
096ccff4 KB |
2001 | if (removed[i]->expose_device) |
2002 | hpsa_remove_device(h, removed[i]); | |
edd16368 SC |
2003 | kfree(removed[i]); |
2004 | removed[i] = NULL; | |
2005 | } | |
2006 | ||
2007 | /* Notify scsi mid layer of any added devices */ | |
2008 | for (i = 0; i < nadded; i++) { | |
096ccff4 KB |
2009 | int rc = 0; |
2010 | ||
1d33d85d DB |
2011 | if (added[i] == NULL) |
2012 | continue; | |
2a168208 | 2013 | if (!(added[i]->expose_device)) |
41ce4c35 | 2014 | continue; |
096ccff4 KB |
2015 | rc = hpsa_add_device(h, added[i]); |
2016 | if (!rc) | |
edd16368 | 2017 | continue; |
096ccff4 KB |
2018 | dev_warn(&h->pdev->dev, |
2019 | "addition failed %d, device not added.", rc); | |
edd16368 SC |
2020 | /* now we have to remove it from h->dev, |
2021 | * since it didn't get added to scsi mid layer | |
2022 | */ | |
2023 | fixup_botched_add(h, added[i]); | |
853633e8 | 2024 | h->drv_req_rescan = 1; |
edd16368 SC |
2025 | } |
2026 | ||
2027 | free_and_out: | |
2028 | kfree(added); | |
2029 | kfree(removed); | |
edd16368 SC |
2030 | } |
2031 | ||
2032 | /* | |
9e03aa2f | 2033 | * Lookup bus/target/lun and return corresponding struct hpsa_scsi_dev_t * |
edd16368 SC |
2034 | * Assume's h->devlock is held. |
2035 | */ | |
2036 | static struct hpsa_scsi_dev_t *lookup_hpsa_scsi_dev(struct ctlr_info *h, | |
2037 | int bus, int target, int lun) | |
2038 | { | |
2039 | int i; | |
2040 | struct hpsa_scsi_dev_t *sd; | |
2041 | ||
2042 | for (i = 0; i < h->ndevices; i++) { | |
2043 | sd = h->dev[i]; | |
2044 | if (sd->bus == bus && sd->target == target && sd->lun == lun) | |
2045 | return sd; | |
2046 | } | |
2047 | return NULL; | |
2048 | } | |
2049 | ||
edd16368 SC |
2050 | static int hpsa_slave_alloc(struct scsi_device *sdev) |
2051 | { | |
7630b3a5 | 2052 | struct hpsa_scsi_dev_t *sd = NULL; |
edd16368 SC |
2053 | unsigned long flags; |
2054 | struct ctlr_info *h; | |
2055 | ||
2056 | h = sdev_to_hba(sdev); | |
2057 | spin_lock_irqsave(&h->devlock, flags); | |
d04e62b9 KB |
2058 | if (sdev_channel(sdev) == HPSA_PHYSICAL_DEVICE_BUS) { |
2059 | struct scsi_target *starget; | |
2060 | struct sas_rphy *rphy; | |
2061 | ||
2062 | starget = scsi_target(sdev); | |
2063 | rphy = target_to_rphy(starget); | |
2064 | sd = hpsa_find_device_by_sas_rphy(h, rphy); | |
2065 | if (sd) { | |
2066 | sd->target = sdev_id(sdev); | |
2067 | sd->lun = sdev->lun; | |
2068 | } | |
7630b3a5 HR |
2069 | } |
2070 | if (!sd) | |
d04e62b9 KB |
2071 | sd = lookup_hpsa_scsi_dev(h, sdev_channel(sdev), |
2072 | sdev_id(sdev), sdev->lun); | |
2073 | ||
2074 | if (sd && sd->expose_device) { | |
03383736 | 2075 | atomic_set(&sd->ioaccel_cmds_out, 0); |
d04e62b9 | 2076 | sdev->hostdata = sd; |
41ce4c35 SC |
2077 | } else |
2078 | sdev->hostdata = NULL; | |
edd16368 SC |
2079 | spin_unlock_irqrestore(&h->devlock, flags); |
2080 | return 0; | |
2081 | } | |
2082 | ||
41ce4c35 SC |
2083 | /* configure scsi device based on internal per-device structure */ |
2084 | static int hpsa_slave_configure(struct scsi_device *sdev) | |
2085 | { | |
2086 | struct hpsa_scsi_dev_t *sd; | |
2087 | int queue_depth; | |
2088 | ||
2089 | sd = sdev->hostdata; | |
2a168208 | 2090 | sdev->no_uld_attach = !sd || !sd->expose_device; |
41ce4c35 | 2091 | |
5086435e DB |
2092 | if (sd) { |
2093 | if (sd->external) | |
2094 | queue_depth = EXTERNAL_QD; | |
2095 | else | |
2096 | queue_depth = sd->queue_depth != 0 ? | |
2097 | sd->queue_depth : sdev->host->can_queue; | |
2098 | } else | |
41ce4c35 SC |
2099 | queue_depth = sdev->host->can_queue; |
2100 | ||
2101 | scsi_change_queue_depth(sdev, queue_depth); | |
2102 | ||
2103 | return 0; | |
2104 | } | |
2105 | ||
edd16368 SC |
2106 | static void hpsa_slave_destroy(struct scsi_device *sdev) |
2107 | { | |
bcc44255 | 2108 | /* nothing to do. */ |
edd16368 SC |
2109 | } |
2110 | ||
d9a729f3 WS |
2111 | static void hpsa_free_ioaccel2_sg_chain_blocks(struct ctlr_info *h) |
2112 | { | |
2113 | int i; | |
2114 | ||
2115 | if (!h->ioaccel2_cmd_sg_list) | |
2116 | return; | |
2117 | for (i = 0; i < h->nr_cmds; i++) { | |
2118 | kfree(h->ioaccel2_cmd_sg_list[i]); | |
2119 | h->ioaccel2_cmd_sg_list[i] = NULL; | |
2120 | } | |
2121 | kfree(h->ioaccel2_cmd_sg_list); | |
2122 | h->ioaccel2_cmd_sg_list = NULL; | |
2123 | } | |
2124 | ||
2125 | static int hpsa_allocate_ioaccel2_sg_chain_blocks(struct ctlr_info *h) | |
2126 | { | |
2127 | int i; | |
2128 | ||
2129 | if (h->chainsize <= 0) | |
2130 | return 0; | |
2131 | ||
2132 | h->ioaccel2_cmd_sg_list = | |
2133 | kzalloc(sizeof(*h->ioaccel2_cmd_sg_list) * h->nr_cmds, | |
2134 | GFP_KERNEL); | |
2135 | if (!h->ioaccel2_cmd_sg_list) | |
2136 | return -ENOMEM; | |
2137 | for (i = 0; i < h->nr_cmds; i++) { | |
2138 | h->ioaccel2_cmd_sg_list[i] = | |
2139 | kmalloc(sizeof(*h->ioaccel2_cmd_sg_list[i]) * | |
2140 | h->maxsgentries, GFP_KERNEL); | |
2141 | if (!h->ioaccel2_cmd_sg_list[i]) | |
2142 | goto clean; | |
2143 | } | |
2144 | return 0; | |
2145 | ||
2146 | clean: | |
2147 | hpsa_free_ioaccel2_sg_chain_blocks(h); | |
2148 | return -ENOMEM; | |
2149 | } | |
2150 | ||
33a2ffce SC |
2151 | static void hpsa_free_sg_chain_blocks(struct ctlr_info *h) |
2152 | { | |
2153 | int i; | |
2154 | ||
2155 | if (!h->cmd_sg_list) | |
2156 | return; | |
2157 | for (i = 0; i < h->nr_cmds; i++) { | |
2158 | kfree(h->cmd_sg_list[i]); | |
2159 | h->cmd_sg_list[i] = NULL; | |
2160 | } | |
2161 | kfree(h->cmd_sg_list); | |
2162 | h->cmd_sg_list = NULL; | |
2163 | } | |
2164 | ||
105a3dbc | 2165 | static int hpsa_alloc_sg_chain_blocks(struct ctlr_info *h) |
33a2ffce SC |
2166 | { |
2167 | int i; | |
2168 | ||
2169 | if (h->chainsize <= 0) | |
2170 | return 0; | |
2171 | ||
2172 | h->cmd_sg_list = kzalloc(sizeof(*h->cmd_sg_list) * h->nr_cmds, | |
2173 | GFP_KERNEL); | |
7e8a9486 | 2174 | if (!h->cmd_sg_list) |
33a2ffce | 2175 | return -ENOMEM; |
7e8a9486 | 2176 | |
33a2ffce SC |
2177 | for (i = 0; i < h->nr_cmds; i++) { |
2178 | h->cmd_sg_list[i] = kmalloc(sizeof(*h->cmd_sg_list[i]) * | |
2179 | h->chainsize, GFP_KERNEL); | |
7e8a9486 | 2180 | if (!h->cmd_sg_list[i]) |
33a2ffce | 2181 | goto clean; |
7e8a9486 | 2182 | |
33a2ffce SC |
2183 | } |
2184 | return 0; | |
2185 | ||
2186 | clean: | |
2187 | hpsa_free_sg_chain_blocks(h); | |
2188 | return -ENOMEM; | |
2189 | } | |
2190 | ||
d9a729f3 WS |
2191 | static int hpsa_map_ioaccel2_sg_chain_block(struct ctlr_info *h, |
2192 | struct io_accel2_cmd *cp, struct CommandList *c) | |
2193 | { | |
2194 | struct ioaccel2_sg_element *chain_block; | |
2195 | u64 temp64; | |
2196 | u32 chain_size; | |
2197 | ||
2198 | chain_block = h->ioaccel2_cmd_sg_list[c->cmdindex]; | |
a736e9b6 | 2199 | chain_size = le32_to_cpu(cp->sg[0].length); |
d9a729f3 WS |
2200 | temp64 = pci_map_single(h->pdev, chain_block, chain_size, |
2201 | PCI_DMA_TODEVICE); | |
2202 | if (dma_mapping_error(&h->pdev->dev, temp64)) { | |
2203 | /* prevent subsequent unmapping */ | |
2204 | cp->sg->address = 0; | |
2205 | return -1; | |
2206 | } | |
2207 | cp->sg->address = cpu_to_le64(temp64); | |
2208 | return 0; | |
2209 | } | |
2210 | ||
2211 | static void hpsa_unmap_ioaccel2_sg_chain_block(struct ctlr_info *h, | |
2212 | struct io_accel2_cmd *cp) | |
2213 | { | |
2214 | struct ioaccel2_sg_element *chain_sg; | |
2215 | u64 temp64; | |
2216 | u32 chain_size; | |
2217 | ||
2218 | chain_sg = cp->sg; | |
2219 | temp64 = le64_to_cpu(chain_sg->address); | |
a736e9b6 | 2220 | chain_size = le32_to_cpu(cp->sg[0].length); |
d9a729f3 WS |
2221 | pci_unmap_single(h->pdev, temp64, chain_size, PCI_DMA_TODEVICE); |
2222 | } | |
2223 | ||
e2bea6df | 2224 | static int hpsa_map_sg_chain_block(struct ctlr_info *h, |
33a2ffce SC |
2225 | struct CommandList *c) |
2226 | { | |
2227 | struct SGDescriptor *chain_sg, *chain_block; | |
2228 | u64 temp64; | |
50a0decf | 2229 | u32 chain_len; |
33a2ffce SC |
2230 | |
2231 | chain_sg = &c->SG[h->max_cmd_sg_entries - 1]; | |
2232 | chain_block = h->cmd_sg_list[c->cmdindex]; | |
50a0decf SC |
2233 | chain_sg->Ext = cpu_to_le32(HPSA_SG_CHAIN); |
2234 | chain_len = sizeof(*chain_sg) * | |
2b08b3e9 | 2235 | (le16_to_cpu(c->Header.SGTotal) - h->max_cmd_sg_entries); |
50a0decf SC |
2236 | chain_sg->Len = cpu_to_le32(chain_len); |
2237 | temp64 = pci_map_single(h->pdev, chain_block, chain_len, | |
33a2ffce | 2238 | PCI_DMA_TODEVICE); |
e2bea6df SC |
2239 | if (dma_mapping_error(&h->pdev->dev, temp64)) { |
2240 | /* prevent subsequent unmapping */ | |
50a0decf | 2241 | chain_sg->Addr = cpu_to_le64(0); |
e2bea6df SC |
2242 | return -1; |
2243 | } | |
50a0decf | 2244 | chain_sg->Addr = cpu_to_le64(temp64); |
e2bea6df | 2245 | return 0; |
33a2ffce SC |
2246 | } |
2247 | ||
2248 | static void hpsa_unmap_sg_chain_block(struct ctlr_info *h, | |
2249 | struct CommandList *c) | |
2250 | { | |
2251 | struct SGDescriptor *chain_sg; | |
33a2ffce | 2252 | |
50a0decf | 2253 | if (le16_to_cpu(c->Header.SGTotal) <= h->max_cmd_sg_entries) |
33a2ffce SC |
2254 | return; |
2255 | ||
2256 | chain_sg = &c->SG[h->max_cmd_sg_entries - 1]; | |
50a0decf SC |
2257 | pci_unmap_single(h->pdev, le64_to_cpu(chain_sg->Addr), |
2258 | le32_to_cpu(chain_sg->Len), PCI_DMA_TODEVICE); | |
33a2ffce SC |
2259 | } |
2260 | ||
a09c1441 ST |
2261 | |
2262 | /* Decode the various types of errors on ioaccel2 path. | |
2263 | * Return 1 for any error that should generate a RAID path retry. | |
2264 | * Return 0 for errors that don't require a RAID path retry. | |
2265 | */ | |
2266 | static int handle_ioaccel_mode2_error(struct ctlr_info *h, | |
c349775e ST |
2267 | struct CommandList *c, |
2268 | struct scsi_cmnd *cmd, | |
ba74fdc4 DB |
2269 | struct io_accel2_cmd *c2, |
2270 | struct hpsa_scsi_dev_t *dev) | |
c349775e ST |
2271 | { |
2272 | int data_len; | |
a09c1441 | 2273 | int retry = 0; |
c40820d5 | 2274 | u32 ioaccel2_resid = 0; |
c349775e ST |
2275 | |
2276 | switch (c2->error_data.serv_response) { | |
2277 | case IOACCEL2_SERV_RESPONSE_COMPLETE: | |
2278 | switch (c2->error_data.status) { | |
2279 | case IOACCEL2_STATUS_SR_TASK_COMP_GOOD: | |
2280 | break; | |
2281 | case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND: | |
ee6b1889 | 2282 | cmd->result |= SAM_STAT_CHECK_CONDITION; |
c349775e | 2283 | if (c2->error_data.data_present != |
ee6b1889 SC |
2284 | IOACCEL2_SENSE_DATA_PRESENT) { |
2285 | memset(cmd->sense_buffer, 0, | |
2286 | SCSI_SENSE_BUFFERSIZE); | |
c349775e | 2287 | break; |
ee6b1889 | 2288 | } |
c349775e ST |
2289 | /* copy the sense data */ |
2290 | data_len = c2->error_data.sense_data_len; | |
2291 | if (data_len > SCSI_SENSE_BUFFERSIZE) | |
2292 | data_len = SCSI_SENSE_BUFFERSIZE; | |
2293 | if (data_len > sizeof(c2->error_data.sense_data_buff)) | |
2294 | data_len = | |
2295 | sizeof(c2->error_data.sense_data_buff); | |
2296 | memcpy(cmd->sense_buffer, | |
2297 | c2->error_data.sense_data_buff, data_len); | |
a09c1441 | 2298 | retry = 1; |
c349775e ST |
2299 | break; |
2300 | case IOACCEL2_STATUS_SR_TASK_COMP_BUSY: | |
a09c1441 | 2301 | retry = 1; |
c349775e ST |
2302 | break; |
2303 | case IOACCEL2_STATUS_SR_TASK_COMP_RES_CON: | |
a09c1441 | 2304 | retry = 1; |
c349775e ST |
2305 | break; |
2306 | case IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL: | |
4a8da22b | 2307 | retry = 1; |
c349775e ST |
2308 | break; |
2309 | case IOACCEL2_STATUS_SR_TASK_COMP_ABORTED: | |
a09c1441 | 2310 | retry = 1; |
c349775e ST |
2311 | break; |
2312 | default: | |
a09c1441 | 2313 | retry = 1; |
c349775e ST |
2314 | break; |
2315 | } | |
2316 | break; | |
2317 | case IOACCEL2_SERV_RESPONSE_FAILURE: | |
c40820d5 JH |
2318 | switch (c2->error_data.status) { |
2319 | case IOACCEL2_STATUS_SR_IO_ERROR: | |
2320 | case IOACCEL2_STATUS_SR_IO_ABORTED: | |
2321 | case IOACCEL2_STATUS_SR_OVERRUN: | |
2322 | retry = 1; | |
2323 | break; | |
2324 | case IOACCEL2_STATUS_SR_UNDERRUN: | |
2325 | cmd->result = (DID_OK << 16); /* host byte */ | |
2326 | cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ | |
2327 | ioaccel2_resid = get_unaligned_le32( | |
2328 | &c2->error_data.resid_cnt[0]); | |
2329 | scsi_set_resid(cmd, ioaccel2_resid); | |
2330 | break; | |
2331 | case IOACCEL2_STATUS_SR_NO_PATH_TO_DEVICE: | |
2332 | case IOACCEL2_STATUS_SR_INVALID_DEVICE: | |
2333 | case IOACCEL2_STATUS_SR_IOACCEL_DISABLED: | |
ba74fdc4 DB |
2334 | /* |
2335 | * Did an HBA disk disappear? We will eventually | |
2336 | * get a state change event from the controller but | |
2337 | * in the meantime, we need to tell the OS that the | |
2338 | * HBA disk is no longer there and stop I/O | |
2339 | * from going down. This allows the potential re-insert | |
2340 | * of the disk to get the same device node. | |
2341 | */ | |
2342 | if (dev->physical_device && dev->expose_device) { | |
2343 | cmd->result = DID_NO_CONNECT << 16; | |
2344 | dev->removed = 1; | |
2345 | h->drv_req_rescan = 1; | |
2346 | dev_warn(&h->pdev->dev, | |
2347 | "%s: device is gone!\n", __func__); | |
2348 | } else | |
2349 | /* | |
2350 | * Retry by sending down the RAID path. | |
2351 | * We will get an event from ctlr to | |
2352 | * trigger rescan regardless. | |
2353 | */ | |
2354 | retry = 1; | |
c40820d5 JH |
2355 | break; |
2356 | default: | |
2357 | retry = 1; | |
c40820d5 | 2358 | } |
c349775e ST |
2359 | break; |
2360 | case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE: | |
2361 | break; | |
2362 | case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS: | |
2363 | break; | |
2364 | case IOACCEL2_SERV_RESPONSE_TMF_REJECTED: | |
a09c1441 | 2365 | retry = 1; |
c349775e ST |
2366 | break; |
2367 | case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN: | |
c349775e ST |
2368 | break; |
2369 | default: | |
a09c1441 | 2370 | retry = 1; |
c349775e ST |
2371 | break; |
2372 | } | |
a09c1441 ST |
2373 | |
2374 | return retry; /* retry on raid path? */ | |
c349775e ST |
2375 | } |
2376 | ||
a58e7e53 WS |
2377 | static void hpsa_cmd_resolve_events(struct ctlr_info *h, |
2378 | struct CommandList *c) | |
2379 | { | |
d604f533 WS |
2380 | bool do_wake = false; |
2381 | ||
a58e7e53 | 2382 | /* |
08ec46f6 | 2383 | * Reset c->scsi_cmd here so that the reset handler will know |
d604f533 | 2384 | * this command has completed. Then, check to see if the handler is |
a58e7e53 WS |
2385 | * waiting for this command, and, if so, wake it. |
2386 | */ | |
2387 | c->scsi_cmd = SCSI_CMD_IDLE; | |
d604f533 | 2388 | mb(); /* Declare command idle before checking for pending events. */ |
d604f533 WS |
2389 | if (c->reset_pending) { |
2390 | unsigned long flags; | |
2391 | struct hpsa_scsi_dev_t *dev; | |
2392 | ||
2393 | /* | |
2394 | * There appears to be a reset pending; lock the lock and | |
2395 | * reconfirm. If so, then decrement the count of outstanding | |
2396 | * commands and wake the reset command if this is the last one. | |
2397 | */ | |
2398 | spin_lock_irqsave(&h->lock, flags); | |
2399 | dev = c->reset_pending; /* Re-fetch under the lock. */ | |
2400 | if (dev && atomic_dec_and_test(&dev->reset_cmds_out)) | |
2401 | do_wake = true; | |
2402 | c->reset_pending = NULL; | |
2403 | spin_unlock_irqrestore(&h->lock, flags); | |
2404 | } | |
2405 | ||
2406 | if (do_wake) | |
2407 | wake_up_all(&h->event_sync_wait_queue); | |
a58e7e53 WS |
2408 | } |
2409 | ||
73153fe5 WS |
2410 | static void hpsa_cmd_resolve_and_free(struct ctlr_info *h, |
2411 | struct CommandList *c) | |
2412 | { | |
2413 | hpsa_cmd_resolve_events(h, c); | |
2414 | cmd_tagged_free(h, c); | |
2415 | } | |
2416 | ||
8a0ff92c WS |
2417 | static void hpsa_cmd_free_and_done(struct ctlr_info *h, |
2418 | struct CommandList *c, struct scsi_cmnd *cmd) | |
2419 | { | |
73153fe5 | 2420 | hpsa_cmd_resolve_and_free(h, c); |
d49c2077 DB |
2421 | if (cmd && cmd->scsi_done) |
2422 | cmd->scsi_done(cmd); | |
8a0ff92c WS |
2423 | } |
2424 | ||
2425 | static void hpsa_retry_cmd(struct ctlr_info *h, struct CommandList *c) | |
2426 | { | |
2427 | INIT_WORK(&c->work, hpsa_command_resubmit_worker); | |
2428 | queue_work_on(raw_smp_processor_id(), h->resubmit_wq, &c->work); | |
2429 | } | |
2430 | ||
c349775e ST |
2431 | static void process_ioaccel2_completion(struct ctlr_info *h, |
2432 | struct CommandList *c, struct scsi_cmnd *cmd, | |
2433 | struct hpsa_scsi_dev_t *dev) | |
2434 | { | |
2435 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
2436 | ||
2437 | /* check for good status */ | |
2438 | if (likely(c2->error_data.serv_response == 0 && | |
8a0ff92c WS |
2439 | c2->error_data.status == 0)) |
2440 | return hpsa_cmd_free_and_done(h, c, cmd); | |
c349775e | 2441 | |
8a0ff92c WS |
2442 | /* |
2443 | * Any RAID offload error results in retry which will use | |
c349775e ST |
2444 | * the normal I/O path so the controller can handle whatever's |
2445 | * wrong. | |
2446 | */ | |
f3f01730 | 2447 | if (is_logical_device(dev) && |
c349775e ST |
2448 | c2->error_data.serv_response == |
2449 | IOACCEL2_SERV_RESPONSE_FAILURE) { | |
080ef1cc | 2450 | if (c2->error_data.status == |
064d1b1d | 2451 | IOACCEL2_STATUS_SR_IOACCEL_DISABLED) { |
080ef1cc | 2452 | dev->offload_enabled = 0; |
064d1b1d DB |
2453 | dev->offload_to_be_enabled = 0; |
2454 | } | |
8a0ff92c WS |
2455 | |
2456 | return hpsa_retry_cmd(h, c); | |
a09c1441 | 2457 | } |
080ef1cc | 2458 | |
ba74fdc4 | 2459 | if (handle_ioaccel_mode2_error(h, c, cmd, c2, dev)) |
8a0ff92c | 2460 | return hpsa_retry_cmd(h, c); |
080ef1cc | 2461 | |
8a0ff92c | 2462 | return hpsa_cmd_free_and_done(h, c, cmd); |
c349775e ST |
2463 | } |
2464 | ||
9437ac43 SC |
2465 | /* Returns 0 on success, < 0 otherwise. */ |
2466 | static int hpsa_evaluate_tmf_status(struct ctlr_info *h, | |
2467 | struct CommandList *cp) | |
2468 | { | |
2469 | u8 tmf_status = cp->err_info->ScsiStatus; | |
2470 | ||
2471 | switch (tmf_status) { | |
2472 | case CISS_TMF_COMPLETE: | |
2473 | /* | |
2474 | * CISS_TMF_COMPLETE never happens, instead, | |
2475 | * ei->CommandStatus == 0 for this case. | |
2476 | */ | |
2477 | case CISS_TMF_SUCCESS: | |
2478 | return 0; | |
2479 | case CISS_TMF_INVALID_FRAME: | |
2480 | case CISS_TMF_NOT_SUPPORTED: | |
2481 | case CISS_TMF_FAILED: | |
2482 | case CISS_TMF_WRONG_LUN: | |
2483 | case CISS_TMF_OVERLAPPED_TAG: | |
2484 | break; | |
2485 | default: | |
2486 | dev_warn(&h->pdev->dev, "Unknown TMF status: 0x%02x\n", | |
2487 | tmf_status); | |
2488 | break; | |
2489 | } | |
2490 | return -tmf_status; | |
2491 | } | |
2492 | ||
1fb011fb | 2493 | static void complete_scsi_command(struct CommandList *cp) |
edd16368 SC |
2494 | { |
2495 | struct scsi_cmnd *cmd; | |
2496 | struct ctlr_info *h; | |
2497 | struct ErrorInfo *ei; | |
283b4a9b | 2498 | struct hpsa_scsi_dev_t *dev; |
d9a729f3 | 2499 | struct io_accel2_cmd *c2; |
edd16368 | 2500 | |
9437ac43 SC |
2501 | u8 sense_key; |
2502 | u8 asc; /* additional sense code */ | |
2503 | u8 ascq; /* additional sense code qualifier */ | |
db111e18 | 2504 | unsigned long sense_data_size; |
edd16368 SC |
2505 | |
2506 | ei = cp->err_info; | |
7fa3030c | 2507 | cmd = cp->scsi_cmd; |
edd16368 | 2508 | h = cp->h; |
d49c2077 DB |
2509 | |
2510 | if (!cmd->device) { | |
2511 | cmd->result = DID_NO_CONNECT << 16; | |
2512 | return hpsa_cmd_free_and_done(h, cp, cmd); | |
2513 | } | |
2514 | ||
283b4a9b | 2515 | dev = cmd->device->hostdata; |
45e596cd DB |
2516 | if (!dev) { |
2517 | cmd->result = DID_NO_CONNECT << 16; | |
2518 | return hpsa_cmd_free_and_done(h, cp, cmd); | |
2519 | } | |
d9a729f3 | 2520 | c2 = &h->ioaccel2_cmd_pool[cp->cmdindex]; |
edd16368 SC |
2521 | |
2522 | scsi_dma_unmap(cmd); /* undo the DMA mappings */ | |
e1f7de0c | 2523 | if ((cp->cmd_type == CMD_SCSI) && |
2b08b3e9 | 2524 | (le16_to_cpu(cp->Header.SGTotal) > h->max_cmd_sg_entries)) |
33a2ffce | 2525 | hpsa_unmap_sg_chain_block(h, cp); |
edd16368 | 2526 | |
d9a729f3 WS |
2527 | if ((cp->cmd_type == CMD_IOACCEL2) && |
2528 | (c2->sg[0].chain_indicator == IOACCEL2_CHAIN)) | |
2529 | hpsa_unmap_ioaccel2_sg_chain_block(h, c2); | |
2530 | ||
edd16368 SC |
2531 | cmd->result = (DID_OK << 16); /* host byte */ |
2532 | cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ | |
c349775e | 2533 | |
d49c2077 DB |
2534 | if (cp->cmd_type == CMD_IOACCEL2 || cp->cmd_type == CMD_IOACCEL1) { |
2535 | if (dev->physical_device && dev->expose_device && | |
2536 | dev->removed) { | |
2537 | cmd->result = DID_NO_CONNECT << 16; | |
2538 | return hpsa_cmd_free_and_done(h, cp, cmd); | |
2539 | } | |
2540 | if (likely(cp->phys_disk != NULL)) | |
2541 | atomic_dec(&cp->phys_disk->ioaccel_cmds_out); | |
2542 | } | |
03383736 | 2543 | |
25163bd5 WS |
2544 | /* |
2545 | * We check for lockup status here as it may be set for | |
2546 | * CMD_SCSI, CMD_IOACCEL1 and CMD_IOACCEL2 commands by | |
2547 | * fail_all_oustanding_cmds() | |
2548 | */ | |
2549 | if (unlikely(ei->CommandStatus == CMD_CTLR_LOCKUP)) { | |
2550 | /* DID_NO_CONNECT will prevent a retry */ | |
2551 | cmd->result = DID_NO_CONNECT << 16; | |
8a0ff92c | 2552 | return hpsa_cmd_free_and_done(h, cp, cmd); |
25163bd5 WS |
2553 | } |
2554 | ||
08ec46f6 | 2555 | if ((unlikely(hpsa_is_pending_event(cp)))) |
d604f533 | 2556 | if (cp->reset_pending) |
bfd7546c | 2557 | return hpsa_cmd_free_and_done(h, cp, cmd); |
d604f533 | 2558 | |
c349775e ST |
2559 | if (cp->cmd_type == CMD_IOACCEL2) |
2560 | return process_ioaccel2_completion(h, cp, cmd, dev); | |
2561 | ||
6aa4c361 | 2562 | scsi_set_resid(cmd, ei->ResidualCnt); |
8a0ff92c WS |
2563 | if (ei->CommandStatus == 0) |
2564 | return hpsa_cmd_free_and_done(h, cp, cmd); | |
6aa4c361 | 2565 | |
e1f7de0c MG |
2566 | /* For I/O accelerator commands, copy over some fields to the normal |
2567 | * CISS header used below for error handling. | |
2568 | */ | |
2569 | if (cp->cmd_type == CMD_IOACCEL1) { | |
2570 | struct io_accel1_cmd *c = &h->ioaccel_cmd_pool[cp->cmdindex]; | |
2b08b3e9 DB |
2571 | cp->Header.SGList = scsi_sg_count(cmd); |
2572 | cp->Header.SGTotal = cpu_to_le16(cp->Header.SGList); | |
2573 | cp->Request.CDBLen = le16_to_cpu(c->io_flags) & | |
2574 | IOACCEL1_IOFLAGS_CDBLEN_MASK; | |
50a0decf | 2575 | cp->Header.tag = c->tag; |
e1f7de0c MG |
2576 | memcpy(cp->Header.LUN.LunAddrBytes, c->CISS_LUN, 8); |
2577 | memcpy(cp->Request.CDB, c->CDB, cp->Request.CDBLen); | |
283b4a9b SC |
2578 | |
2579 | /* Any RAID offload error results in retry which will use | |
2580 | * the normal I/O path so the controller can handle whatever's | |
2581 | * wrong. | |
2582 | */ | |
f3f01730 | 2583 | if (is_logical_device(dev)) { |
283b4a9b SC |
2584 | if (ei->CommandStatus == CMD_IOACCEL_DISABLED) |
2585 | dev->offload_enabled = 0; | |
d604f533 | 2586 | return hpsa_retry_cmd(h, cp); |
283b4a9b | 2587 | } |
e1f7de0c MG |
2588 | } |
2589 | ||
edd16368 SC |
2590 | /* an error has occurred */ |
2591 | switch (ei->CommandStatus) { | |
2592 | ||
2593 | case CMD_TARGET_STATUS: | |
9437ac43 SC |
2594 | cmd->result |= ei->ScsiStatus; |
2595 | /* copy the sense data */ | |
2596 | if (SCSI_SENSE_BUFFERSIZE < sizeof(ei->SenseInfo)) | |
2597 | sense_data_size = SCSI_SENSE_BUFFERSIZE; | |
2598 | else | |
2599 | sense_data_size = sizeof(ei->SenseInfo); | |
2600 | if (ei->SenseLen < sense_data_size) | |
2601 | sense_data_size = ei->SenseLen; | |
2602 | memcpy(cmd->sense_buffer, ei->SenseInfo, sense_data_size); | |
2603 | if (ei->ScsiStatus) | |
2604 | decode_sense_data(ei->SenseInfo, sense_data_size, | |
2605 | &sense_key, &asc, &ascq); | |
edd16368 | 2606 | if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION) { |
1d3b3609 | 2607 | if (sense_key == ABORTED_COMMAND) { |
2e311fba | 2608 | cmd->result |= DID_SOFT_ERROR << 16; |
1d3b3609 MG |
2609 | break; |
2610 | } | |
edd16368 SC |
2611 | break; |
2612 | } | |
edd16368 SC |
2613 | /* Problem was not a check condition |
2614 | * Pass it up to the upper layers... | |
2615 | */ | |
2616 | if (ei->ScsiStatus) { | |
2617 | dev_warn(&h->pdev->dev, "cp %p has status 0x%x " | |
2618 | "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, " | |
2619 | "Returning result: 0x%x\n", | |
2620 | cp, ei->ScsiStatus, | |
2621 | sense_key, asc, ascq, | |
2622 | cmd->result); | |
2623 | } else { /* scsi status is zero??? How??? */ | |
2624 | dev_warn(&h->pdev->dev, "cp %p SCSI status was 0. " | |
2625 | "Returning no connection.\n", cp), | |
2626 | ||
2627 | /* Ordinarily, this case should never happen, | |
2628 | * but there is a bug in some released firmware | |
2629 | * revisions that allows it to happen if, for | |
2630 | * example, a 4100 backplane loses power and | |
2631 | * the tape drive is in it. We assume that | |
2632 | * it's a fatal error of some kind because we | |
2633 | * can't show that it wasn't. We will make it | |
2634 | * look like selection timeout since that is | |
2635 | * the most common reason for this to occur, | |
2636 | * and it's severe enough. | |
2637 | */ | |
2638 | ||
2639 | cmd->result = DID_NO_CONNECT << 16; | |
2640 | } | |
2641 | break; | |
2642 | ||
2643 | case CMD_DATA_UNDERRUN: /* let mid layer handle it. */ | |
2644 | break; | |
2645 | case CMD_DATA_OVERRUN: | |
f42e81e1 SC |
2646 | dev_warn(&h->pdev->dev, |
2647 | "CDB %16phN data overrun\n", cp->Request.CDB); | |
edd16368 SC |
2648 | break; |
2649 | case CMD_INVALID: { | |
2650 | /* print_bytes(cp, sizeof(*cp), 1, 0); | |
2651 | print_cmd(cp); */ | |
2652 | /* We get CMD_INVALID if you address a non-existent device | |
2653 | * instead of a selection timeout (no response). You will | |
2654 | * see this if you yank out a drive, then try to access it. | |
2655 | * This is kind of a shame because it means that any other | |
2656 | * CMD_INVALID (e.g. driver bug) will get interpreted as a | |
2657 | * missing target. */ | |
2658 | cmd->result = DID_NO_CONNECT << 16; | |
2659 | } | |
2660 | break; | |
2661 | case CMD_PROTOCOL_ERR: | |
256d0eaa | 2662 | cmd->result = DID_ERROR << 16; |
f42e81e1 SC |
2663 | dev_warn(&h->pdev->dev, "CDB %16phN : protocol error\n", |
2664 | cp->Request.CDB); | |
edd16368 SC |
2665 | break; |
2666 | case CMD_HARDWARE_ERR: | |
2667 | cmd->result = DID_ERROR << 16; | |
f42e81e1 SC |
2668 | dev_warn(&h->pdev->dev, "CDB %16phN : hardware error\n", |
2669 | cp->Request.CDB); | |
edd16368 SC |
2670 | break; |
2671 | case CMD_CONNECTION_LOST: | |
2672 | cmd->result = DID_ERROR << 16; | |
f42e81e1 SC |
2673 | dev_warn(&h->pdev->dev, "CDB %16phN : connection lost\n", |
2674 | cp->Request.CDB); | |
edd16368 SC |
2675 | break; |
2676 | case CMD_ABORTED: | |
08ec46f6 DB |
2677 | cmd->result = DID_ABORT << 16; |
2678 | break; | |
edd16368 SC |
2679 | case CMD_ABORT_FAILED: |
2680 | cmd->result = DID_ERROR << 16; | |
f42e81e1 SC |
2681 | dev_warn(&h->pdev->dev, "CDB %16phN : abort failed\n", |
2682 | cp->Request.CDB); | |
edd16368 SC |
2683 | break; |
2684 | case CMD_UNSOLICITED_ABORT: | |
f6e76055 | 2685 | cmd->result = DID_SOFT_ERROR << 16; /* retry the command */ |
f42e81e1 SC |
2686 | dev_warn(&h->pdev->dev, "CDB %16phN : unsolicited abort\n", |
2687 | cp->Request.CDB); | |
edd16368 SC |
2688 | break; |
2689 | case CMD_TIMEOUT: | |
2690 | cmd->result = DID_TIME_OUT << 16; | |
f42e81e1 SC |
2691 | dev_warn(&h->pdev->dev, "CDB %16phN timed out\n", |
2692 | cp->Request.CDB); | |
edd16368 | 2693 | break; |
1d5e2ed0 SC |
2694 | case CMD_UNABORTABLE: |
2695 | cmd->result = DID_ERROR << 16; | |
2696 | dev_warn(&h->pdev->dev, "Command unabortable\n"); | |
2697 | break; | |
9437ac43 SC |
2698 | case CMD_TMF_STATUS: |
2699 | if (hpsa_evaluate_tmf_status(h, cp)) /* TMF failed? */ | |
2700 | cmd->result = DID_ERROR << 16; | |
2701 | break; | |
283b4a9b SC |
2702 | case CMD_IOACCEL_DISABLED: |
2703 | /* This only handles the direct pass-through case since RAID | |
2704 | * offload is handled above. Just attempt a retry. | |
2705 | */ | |
2706 | cmd->result = DID_SOFT_ERROR << 16; | |
2707 | dev_warn(&h->pdev->dev, | |
2708 | "cp %p had HP SSD Smart Path error\n", cp); | |
2709 | break; | |
edd16368 SC |
2710 | default: |
2711 | cmd->result = DID_ERROR << 16; | |
2712 | dev_warn(&h->pdev->dev, "cp %p returned unknown status %x\n", | |
2713 | cp, ei->CommandStatus); | |
2714 | } | |
8a0ff92c WS |
2715 | |
2716 | return hpsa_cmd_free_and_done(h, cp, cmd); | |
edd16368 SC |
2717 | } |
2718 | ||
edd16368 SC |
2719 | static void hpsa_pci_unmap(struct pci_dev *pdev, |
2720 | struct CommandList *c, int sg_used, int data_direction) | |
2721 | { | |
2722 | int i; | |
edd16368 | 2723 | |
50a0decf SC |
2724 | for (i = 0; i < sg_used; i++) |
2725 | pci_unmap_single(pdev, (dma_addr_t) le64_to_cpu(c->SG[i].Addr), | |
2726 | le32_to_cpu(c->SG[i].Len), | |
2727 | data_direction); | |
edd16368 SC |
2728 | } |
2729 | ||
a2dac136 | 2730 | static int hpsa_map_one(struct pci_dev *pdev, |
edd16368 SC |
2731 | struct CommandList *cp, |
2732 | unsigned char *buf, | |
2733 | size_t buflen, | |
2734 | int data_direction) | |
2735 | { | |
01a02ffc | 2736 | u64 addr64; |
edd16368 SC |
2737 | |
2738 | if (buflen == 0 || data_direction == PCI_DMA_NONE) { | |
2739 | cp->Header.SGList = 0; | |
50a0decf | 2740 | cp->Header.SGTotal = cpu_to_le16(0); |
a2dac136 | 2741 | return 0; |
edd16368 SC |
2742 | } |
2743 | ||
50a0decf | 2744 | addr64 = pci_map_single(pdev, buf, buflen, data_direction); |
eceaae18 | 2745 | if (dma_mapping_error(&pdev->dev, addr64)) { |
a2dac136 | 2746 | /* Prevent subsequent unmap of something never mapped */ |
eceaae18 | 2747 | cp->Header.SGList = 0; |
50a0decf | 2748 | cp->Header.SGTotal = cpu_to_le16(0); |
a2dac136 | 2749 | return -1; |
eceaae18 | 2750 | } |
50a0decf SC |
2751 | cp->SG[0].Addr = cpu_to_le64(addr64); |
2752 | cp->SG[0].Len = cpu_to_le32(buflen); | |
2753 | cp->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* we are not chaining */ | |
2754 | cp->Header.SGList = 1; /* no. SGs contig in this cmd */ | |
2755 | cp->Header.SGTotal = cpu_to_le16(1); /* total sgs in cmd list */ | |
a2dac136 | 2756 | return 0; |
edd16368 SC |
2757 | } |
2758 | ||
25163bd5 WS |
2759 | #define NO_TIMEOUT ((unsigned long) -1) |
2760 | #define DEFAULT_TIMEOUT 30000 /* milliseconds */ | |
2761 | static int hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h, | |
2762 | struct CommandList *c, int reply_queue, unsigned long timeout_msecs) | |
edd16368 SC |
2763 | { |
2764 | DECLARE_COMPLETION_ONSTACK(wait); | |
2765 | ||
2766 | c->waiting = &wait; | |
25163bd5 WS |
2767 | __enqueue_cmd_and_start_io(h, c, reply_queue); |
2768 | if (timeout_msecs == NO_TIMEOUT) { | |
2769 | /* TODO: get rid of this no-timeout thing */ | |
2770 | wait_for_completion_io(&wait); | |
2771 | return IO_OK; | |
2772 | } | |
2773 | if (!wait_for_completion_io_timeout(&wait, | |
2774 | msecs_to_jiffies(timeout_msecs))) { | |
2775 | dev_warn(&h->pdev->dev, "Command timed out.\n"); | |
2776 | return -ETIMEDOUT; | |
2777 | } | |
2778 | return IO_OK; | |
2779 | } | |
2780 | ||
2781 | static int hpsa_scsi_do_simple_cmd(struct ctlr_info *h, struct CommandList *c, | |
2782 | int reply_queue, unsigned long timeout_msecs) | |
2783 | { | |
2784 | if (unlikely(lockup_detected(h))) { | |
2785 | c->err_info->CommandStatus = CMD_CTLR_LOCKUP; | |
2786 | return IO_OK; | |
2787 | } | |
2788 | return hpsa_scsi_do_simple_cmd_core(h, c, reply_queue, timeout_msecs); | |
edd16368 SC |
2789 | } |
2790 | ||
094963da SC |
2791 | static u32 lockup_detected(struct ctlr_info *h) |
2792 | { | |
2793 | int cpu; | |
2794 | u32 rc, *lockup_detected; | |
2795 | ||
2796 | cpu = get_cpu(); | |
2797 | lockup_detected = per_cpu_ptr(h->lockup_detected, cpu); | |
2798 | rc = *lockup_detected; | |
2799 | put_cpu(); | |
2800 | return rc; | |
2801 | } | |
2802 | ||
9c2fc160 | 2803 | #define MAX_DRIVER_CMD_RETRIES 25 |
25163bd5 WS |
2804 | static int hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h, |
2805 | struct CommandList *c, int data_direction, unsigned long timeout_msecs) | |
edd16368 | 2806 | { |
9c2fc160 | 2807 | int backoff_time = 10, retry_count = 0; |
25163bd5 | 2808 | int rc; |
edd16368 SC |
2809 | |
2810 | do { | |
7630abd0 | 2811 | memset(c->err_info, 0, sizeof(*c->err_info)); |
25163bd5 WS |
2812 | rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, |
2813 | timeout_msecs); | |
2814 | if (rc) | |
2815 | break; | |
edd16368 | 2816 | retry_count++; |
9c2fc160 SC |
2817 | if (retry_count > 3) { |
2818 | msleep(backoff_time); | |
2819 | if (backoff_time < 1000) | |
2820 | backoff_time *= 2; | |
2821 | } | |
852af20a | 2822 | } while ((check_for_unit_attention(h, c) || |
9c2fc160 SC |
2823 | check_for_busy(h, c)) && |
2824 | retry_count <= MAX_DRIVER_CMD_RETRIES); | |
edd16368 | 2825 | hpsa_pci_unmap(h->pdev, c, 1, data_direction); |
25163bd5 WS |
2826 | if (retry_count > MAX_DRIVER_CMD_RETRIES) |
2827 | rc = -EIO; | |
2828 | return rc; | |
edd16368 SC |
2829 | } |
2830 | ||
d1e8beac SC |
2831 | static void hpsa_print_cmd(struct ctlr_info *h, char *txt, |
2832 | struct CommandList *c) | |
edd16368 | 2833 | { |
d1e8beac SC |
2834 | const u8 *cdb = c->Request.CDB; |
2835 | const u8 *lun = c->Header.LUN.LunAddrBytes; | |
2836 | ||
609a70df RV |
2837 | dev_warn(&h->pdev->dev, "%s: LUN:%8phN CDB:%16phN\n", |
2838 | txt, lun, cdb); | |
d1e8beac SC |
2839 | } |
2840 | ||
2841 | static void hpsa_scsi_interpret_error(struct ctlr_info *h, | |
2842 | struct CommandList *cp) | |
2843 | { | |
2844 | const struct ErrorInfo *ei = cp->err_info; | |
edd16368 | 2845 | struct device *d = &cp->h->pdev->dev; |
9437ac43 SC |
2846 | u8 sense_key, asc, ascq; |
2847 | int sense_len; | |
edd16368 | 2848 | |
edd16368 SC |
2849 | switch (ei->CommandStatus) { |
2850 | case CMD_TARGET_STATUS: | |
9437ac43 SC |
2851 | if (ei->SenseLen > sizeof(ei->SenseInfo)) |
2852 | sense_len = sizeof(ei->SenseInfo); | |
2853 | else | |
2854 | sense_len = ei->SenseLen; | |
2855 | decode_sense_data(ei->SenseInfo, sense_len, | |
2856 | &sense_key, &asc, &ascq); | |
d1e8beac SC |
2857 | hpsa_print_cmd(h, "SCSI status", cp); |
2858 | if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION) | |
9437ac43 SC |
2859 | dev_warn(d, "SCSI Status = 02, Sense key = 0x%02x, ASC = 0x%02x, ASCQ = 0x%02x\n", |
2860 | sense_key, asc, ascq); | |
d1e8beac | 2861 | else |
9437ac43 | 2862 | dev_warn(d, "SCSI Status = 0x%02x\n", ei->ScsiStatus); |
edd16368 SC |
2863 | if (ei->ScsiStatus == 0) |
2864 | dev_warn(d, "SCSI status is abnormally zero. " | |
2865 | "(probably indicates selection timeout " | |
2866 | "reported incorrectly due to a known " | |
2867 | "firmware bug, circa July, 2001.)\n"); | |
2868 | break; | |
2869 | case CMD_DATA_UNDERRUN: /* let mid layer handle it. */ | |
edd16368 SC |
2870 | break; |
2871 | case CMD_DATA_OVERRUN: | |
d1e8beac | 2872 | hpsa_print_cmd(h, "overrun condition", cp); |
edd16368 SC |
2873 | break; |
2874 | case CMD_INVALID: { | |
2875 | /* controller unfortunately reports SCSI passthru's | |
2876 | * to non-existent targets as invalid commands. | |
2877 | */ | |
d1e8beac SC |
2878 | hpsa_print_cmd(h, "invalid command", cp); |
2879 | dev_warn(d, "probably means device no longer present\n"); | |
edd16368 SC |
2880 | } |
2881 | break; | |
2882 | case CMD_PROTOCOL_ERR: | |
d1e8beac | 2883 | hpsa_print_cmd(h, "protocol error", cp); |
edd16368 SC |
2884 | break; |
2885 | case CMD_HARDWARE_ERR: | |
d1e8beac | 2886 | hpsa_print_cmd(h, "hardware error", cp); |
edd16368 SC |
2887 | break; |
2888 | case CMD_CONNECTION_LOST: | |
d1e8beac | 2889 | hpsa_print_cmd(h, "connection lost", cp); |
edd16368 SC |
2890 | break; |
2891 | case CMD_ABORTED: | |
d1e8beac | 2892 | hpsa_print_cmd(h, "aborted", cp); |
edd16368 SC |
2893 | break; |
2894 | case CMD_ABORT_FAILED: | |
d1e8beac | 2895 | hpsa_print_cmd(h, "abort failed", cp); |
edd16368 SC |
2896 | break; |
2897 | case CMD_UNSOLICITED_ABORT: | |
d1e8beac | 2898 | hpsa_print_cmd(h, "unsolicited abort", cp); |
edd16368 SC |
2899 | break; |
2900 | case CMD_TIMEOUT: | |
d1e8beac | 2901 | hpsa_print_cmd(h, "timed out", cp); |
edd16368 | 2902 | break; |
1d5e2ed0 | 2903 | case CMD_UNABORTABLE: |
d1e8beac | 2904 | hpsa_print_cmd(h, "unabortable", cp); |
1d5e2ed0 | 2905 | break; |
25163bd5 WS |
2906 | case CMD_CTLR_LOCKUP: |
2907 | hpsa_print_cmd(h, "controller lockup detected", cp); | |
2908 | break; | |
edd16368 | 2909 | default: |
d1e8beac SC |
2910 | hpsa_print_cmd(h, "unknown status", cp); |
2911 | dev_warn(d, "Unknown command status %x\n", | |
edd16368 SC |
2912 | ei->CommandStatus); |
2913 | } | |
2914 | } | |
2915 | ||
2916 | static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr, | |
b7bb24eb | 2917 | u16 page, unsigned char *buf, |
edd16368 SC |
2918 | unsigned char bufsize) |
2919 | { | |
2920 | int rc = IO_OK; | |
2921 | struct CommandList *c; | |
2922 | struct ErrorInfo *ei; | |
2923 | ||
45fcb86e | 2924 | c = cmd_alloc(h); |
edd16368 | 2925 | |
a2dac136 SC |
2926 | if (fill_cmd(c, HPSA_INQUIRY, h, buf, bufsize, |
2927 | page, scsi3addr, TYPE_CMD)) { | |
2928 | rc = -1; | |
2929 | goto out; | |
2930 | } | |
25163bd5 | 2931 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
c448ecfa | 2932 | PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT); |
25163bd5 WS |
2933 | if (rc) |
2934 | goto out; | |
edd16368 SC |
2935 | ei = c->err_info; |
2936 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
d1e8beac | 2937 | hpsa_scsi_interpret_error(h, c); |
edd16368 SC |
2938 | rc = -1; |
2939 | } | |
a2dac136 | 2940 | out: |
45fcb86e | 2941 | cmd_free(h, c); |
edd16368 SC |
2942 | return rc; |
2943 | } | |
2944 | ||
bf711ac6 | 2945 | static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr, |
25163bd5 | 2946 | u8 reset_type, int reply_queue) |
edd16368 SC |
2947 | { |
2948 | int rc = IO_OK; | |
2949 | struct CommandList *c; | |
2950 | struct ErrorInfo *ei; | |
2951 | ||
45fcb86e | 2952 | c = cmd_alloc(h); |
edd16368 | 2953 | |
edd16368 | 2954 | |
a2dac136 | 2955 | /* fill_cmd can't fail here, no data buffer to map. */ |
0b9b7b6e | 2956 | (void) fill_cmd(c, reset_type, h, NULL, 0, 0, |
bf711ac6 | 2957 | scsi3addr, TYPE_MSG); |
2ef28849 | 2958 | rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT); |
25163bd5 WS |
2959 | if (rc) { |
2960 | dev_warn(&h->pdev->dev, "Failed to send reset command\n"); | |
2961 | goto out; | |
2962 | } | |
edd16368 SC |
2963 | /* no unmap needed here because no data xfer. */ |
2964 | ||
2965 | ei = c->err_info; | |
2966 | if (ei->CommandStatus != 0) { | |
d1e8beac | 2967 | hpsa_scsi_interpret_error(h, c); |
edd16368 SC |
2968 | rc = -1; |
2969 | } | |
25163bd5 | 2970 | out: |
45fcb86e | 2971 | cmd_free(h, c); |
edd16368 SC |
2972 | return rc; |
2973 | } | |
2974 | ||
d604f533 WS |
2975 | static bool hpsa_cmd_dev_match(struct ctlr_info *h, struct CommandList *c, |
2976 | struct hpsa_scsi_dev_t *dev, | |
2977 | unsigned char *scsi3addr) | |
2978 | { | |
2979 | int i; | |
2980 | bool match = false; | |
2981 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
2982 | struct hpsa_tmf_struct *ac = (struct hpsa_tmf_struct *) c2; | |
2983 | ||
2984 | if (hpsa_is_cmd_idle(c)) | |
2985 | return false; | |
2986 | ||
2987 | switch (c->cmd_type) { | |
2988 | case CMD_SCSI: | |
2989 | case CMD_IOCTL_PEND: | |
2990 | match = !memcmp(scsi3addr, &c->Header.LUN.LunAddrBytes, | |
2991 | sizeof(c->Header.LUN.LunAddrBytes)); | |
2992 | break; | |
2993 | ||
2994 | case CMD_IOACCEL1: | |
2995 | case CMD_IOACCEL2: | |
2996 | if (c->phys_disk == dev) { | |
2997 | /* HBA mode match */ | |
2998 | match = true; | |
2999 | } else { | |
3000 | /* Possible RAID mode -- check each phys dev. */ | |
3001 | /* FIXME: Do we need to take out a lock here? If | |
3002 | * so, we could just call hpsa_get_pdisk_of_ioaccel2() | |
3003 | * instead. */ | |
3004 | for (i = 0; i < dev->nphysical_disks && !match; i++) { | |
3005 | /* FIXME: an alternate test might be | |
3006 | * | |
3007 | * match = dev->phys_disk[i]->ioaccel_handle | |
3008 | * == c2->scsi_nexus; */ | |
3009 | match = dev->phys_disk[i] == c->phys_disk; | |
3010 | } | |
3011 | } | |
3012 | break; | |
3013 | ||
3014 | case IOACCEL2_TMF: | |
3015 | for (i = 0; i < dev->nphysical_disks && !match; i++) { | |
3016 | match = dev->phys_disk[i]->ioaccel_handle == | |
3017 | le32_to_cpu(ac->it_nexus); | |
3018 | } | |
3019 | break; | |
3020 | ||
3021 | case 0: /* The command is in the middle of being initialized. */ | |
3022 | match = false; | |
3023 | break; | |
3024 | ||
3025 | default: | |
3026 | dev_err(&h->pdev->dev, "unexpected cmd_type: %d\n", | |
3027 | c->cmd_type); | |
3028 | BUG(); | |
3029 | } | |
3030 | ||
3031 | return match; | |
3032 | } | |
3033 | ||
3034 | static int hpsa_do_reset(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev, | |
3035 | unsigned char *scsi3addr, u8 reset_type, int reply_queue) | |
3036 | { | |
3037 | int i; | |
3038 | int rc = 0; | |
3039 | ||
3040 | /* We can really only handle one reset at a time */ | |
3041 | if (mutex_lock_interruptible(&h->reset_mutex) == -EINTR) { | |
3042 | dev_warn(&h->pdev->dev, "concurrent reset wait interrupted.\n"); | |
3043 | return -EINTR; | |
3044 | } | |
3045 | ||
3046 | BUG_ON(atomic_read(&dev->reset_cmds_out) != 0); | |
3047 | ||
3048 | for (i = 0; i < h->nr_cmds; i++) { | |
3049 | struct CommandList *c = h->cmd_pool + i; | |
3050 | int refcount = atomic_inc_return(&c->refcount); | |
3051 | ||
3052 | if (refcount > 1 && hpsa_cmd_dev_match(h, c, dev, scsi3addr)) { | |
3053 | unsigned long flags; | |
3054 | ||
3055 | /* | |
3056 | * Mark the target command as having a reset pending, | |
3057 | * then lock a lock so that the command cannot complete | |
3058 | * while we're considering it. If the command is not | |
3059 | * idle then count it; otherwise revoke the event. | |
3060 | */ | |
3061 | c->reset_pending = dev; | |
3062 | spin_lock_irqsave(&h->lock, flags); /* Implied MB */ | |
3063 | if (!hpsa_is_cmd_idle(c)) | |
3064 | atomic_inc(&dev->reset_cmds_out); | |
3065 | else | |
3066 | c->reset_pending = NULL; | |
3067 | spin_unlock_irqrestore(&h->lock, flags); | |
3068 | } | |
3069 | ||
3070 | cmd_free(h, c); | |
3071 | } | |
3072 | ||
3073 | rc = hpsa_send_reset(h, scsi3addr, reset_type, reply_queue); | |
3074 | if (!rc) | |
3075 | wait_event(h->event_sync_wait_queue, | |
3076 | atomic_read(&dev->reset_cmds_out) == 0 || | |
3077 | lockup_detected(h)); | |
3078 | ||
3079 | if (unlikely(lockup_detected(h))) { | |
77678d3a DB |
3080 | dev_warn(&h->pdev->dev, |
3081 | "Controller lockup detected during reset wait\n"); | |
3082 | rc = -ENODEV; | |
3083 | } | |
d604f533 WS |
3084 | |
3085 | if (unlikely(rc)) | |
3086 | atomic_set(&dev->reset_cmds_out, 0); | |
bfd7546c | 3087 | else |
8516a2db | 3088 | rc = wait_for_device_to_become_ready(h, scsi3addr, 0); |
d604f533 WS |
3089 | |
3090 | mutex_unlock(&h->reset_mutex); | |
3091 | return rc; | |
3092 | } | |
3093 | ||
edd16368 SC |
3094 | static void hpsa_get_raid_level(struct ctlr_info *h, |
3095 | unsigned char *scsi3addr, unsigned char *raid_level) | |
3096 | { | |
3097 | int rc; | |
3098 | unsigned char *buf; | |
3099 | ||
3100 | *raid_level = RAID_UNKNOWN; | |
3101 | buf = kzalloc(64, GFP_KERNEL); | |
3102 | if (!buf) | |
3103 | return; | |
8383278d ST |
3104 | |
3105 | if (!hpsa_vpd_page_supported(h, scsi3addr, | |
3106 | HPSA_VPD_LV_DEVICE_GEOMETRY)) | |
3107 | goto exit; | |
3108 | ||
3109 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | | |
3110 | HPSA_VPD_LV_DEVICE_GEOMETRY, buf, 64); | |
3111 | ||
edd16368 SC |
3112 | if (rc == 0) |
3113 | *raid_level = buf[8]; | |
3114 | if (*raid_level > RAID_UNKNOWN) | |
3115 | *raid_level = RAID_UNKNOWN; | |
8383278d | 3116 | exit: |
edd16368 SC |
3117 | kfree(buf); |
3118 | return; | |
3119 | } | |
3120 | ||
283b4a9b SC |
3121 | #define HPSA_MAP_DEBUG |
3122 | #ifdef HPSA_MAP_DEBUG | |
3123 | static void hpsa_debug_map_buff(struct ctlr_info *h, int rc, | |
3124 | struct raid_map_data *map_buff) | |
3125 | { | |
3126 | struct raid_map_disk_data *dd = &map_buff->data[0]; | |
3127 | int map, row, col; | |
3128 | u16 map_cnt, row_cnt, disks_per_row; | |
3129 | ||
3130 | if (rc != 0) | |
3131 | return; | |
3132 | ||
2ba8bfc8 SC |
3133 | /* Show details only if debugging has been activated. */ |
3134 | if (h->raid_offload_debug < 2) | |
3135 | return; | |
3136 | ||
283b4a9b SC |
3137 | dev_info(&h->pdev->dev, "structure_size = %u\n", |
3138 | le32_to_cpu(map_buff->structure_size)); | |
3139 | dev_info(&h->pdev->dev, "volume_blk_size = %u\n", | |
3140 | le32_to_cpu(map_buff->volume_blk_size)); | |
3141 | dev_info(&h->pdev->dev, "volume_blk_cnt = 0x%llx\n", | |
3142 | le64_to_cpu(map_buff->volume_blk_cnt)); | |
3143 | dev_info(&h->pdev->dev, "physicalBlockShift = %u\n", | |
3144 | map_buff->phys_blk_shift); | |
3145 | dev_info(&h->pdev->dev, "parity_rotation_shift = %u\n", | |
3146 | map_buff->parity_rotation_shift); | |
3147 | dev_info(&h->pdev->dev, "strip_size = %u\n", | |
3148 | le16_to_cpu(map_buff->strip_size)); | |
3149 | dev_info(&h->pdev->dev, "disk_starting_blk = 0x%llx\n", | |
3150 | le64_to_cpu(map_buff->disk_starting_blk)); | |
3151 | dev_info(&h->pdev->dev, "disk_blk_cnt = 0x%llx\n", | |
3152 | le64_to_cpu(map_buff->disk_blk_cnt)); | |
3153 | dev_info(&h->pdev->dev, "data_disks_per_row = %u\n", | |
3154 | le16_to_cpu(map_buff->data_disks_per_row)); | |
3155 | dev_info(&h->pdev->dev, "metadata_disks_per_row = %u\n", | |
3156 | le16_to_cpu(map_buff->metadata_disks_per_row)); | |
3157 | dev_info(&h->pdev->dev, "row_cnt = %u\n", | |
3158 | le16_to_cpu(map_buff->row_cnt)); | |
3159 | dev_info(&h->pdev->dev, "layout_map_count = %u\n", | |
3160 | le16_to_cpu(map_buff->layout_map_count)); | |
2b08b3e9 | 3161 | dev_info(&h->pdev->dev, "flags = 0x%x\n", |
dd0e19f3 | 3162 | le16_to_cpu(map_buff->flags)); |
ba82d91b | 3163 | dev_info(&h->pdev->dev, "encryption = %s\n", |
2b08b3e9 DB |
3164 | le16_to_cpu(map_buff->flags) & |
3165 | RAID_MAP_FLAG_ENCRYPT_ON ? "ON" : "OFF"); | |
dd0e19f3 ST |
3166 | dev_info(&h->pdev->dev, "dekindex = %u\n", |
3167 | le16_to_cpu(map_buff->dekindex)); | |
283b4a9b SC |
3168 | map_cnt = le16_to_cpu(map_buff->layout_map_count); |
3169 | for (map = 0; map < map_cnt; map++) { | |
3170 | dev_info(&h->pdev->dev, "Map%u:\n", map); | |
3171 | row_cnt = le16_to_cpu(map_buff->row_cnt); | |
3172 | for (row = 0; row < row_cnt; row++) { | |
3173 | dev_info(&h->pdev->dev, " Row%u:\n", row); | |
3174 | disks_per_row = | |
3175 | le16_to_cpu(map_buff->data_disks_per_row); | |
3176 | for (col = 0; col < disks_per_row; col++, dd++) | |
3177 | dev_info(&h->pdev->dev, | |
3178 | " D%02u: h=0x%04x xor=%u,%u\n", | |
3179 | col, dd->ioaccel_handle, | |
3180 | dd->xor_mult[0], dd->xor_mult[1]); | |
3181 | disks_per_row = | |
3182 | le16_to_cpu(map_buff->metadata_disks_per_row); | |
3183 | for (col = 0; col < disks_per_row; col++, dd++) | |
3184 | dev_info(&h->pdev->dev, | |
3185 | " M%02u: h=0x%04x xor=%u,%u\n", | |
3186 | col, dd->ioaccel_handle, | |
3187 | dd->xor_mult[0], dd->xor_mult[1]); | |
3188 | } | |
3189 | } | |
3190 | } | |
3191 | #else | |
3192 | static void hpsa_debug_map_buff(__attribute__((unused)) struct ctlr_info *h, | |
3193 | __attribute__((unused)) int rc, | |
3194 | __attribute__((unused)) struct raid_map_data *map_buff) | |
3195 | { | |
3196 | } | |
3197 | #endif | |
3198 | ||
3199 | static int hpsa_get_raid_map(struct ctlr_info *h, | |
3200 | unsigned char *scsi3addr, struct hpsa_scsi_dev_t *this_device) | |
3201 | { | |
3202 | int rc = 0; | |
3203 | struct CommandList *c; | |
3204 | struct ErrorInfo *ei; | |
3205 | ||
45fcb86e | 3206 | c = cmd_alloc(h); |
bf43caf3 | 3207 | |
283b4a9b SC |
3208 | if (fill_cmd(c, HPSA_GET_RAID_MAP, h, &this_device->raid_map, |
3209 | sizeof(this_device->raid_map), 0, | |
3210 | scsi3addr, TYPE_CMD)) { | |
2dd02d74 RE |
3211 | dev_warn(&h->pdev->dev, "hpsa_get_raid_map fill_cmd failed\n"); |
3212 | cmd_free(h, c); | |
3213 | return -1; | |
283b4a9b | 3214 | } |
25163bd5 | 3215 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
c448ecfa | 3216 | PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT); |
25163bd5 WS |
3217 | if (rc) |
3218 | goto out; | |
283b4a9b SC |
3219 | ei = c->err_info; |
3220 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
d1e8beac | 3221 | hpsa_scsi_interpret_error(h, c); |
25163bd5 WS |
3222 | rc = -1; |
3223 | goto out; | |
283b4a9b | 3224 | } |
45fcb86e | 3225 | cmd_free(h, c); |
283b4a9b SC |
3226 | |
3227 | /* @todo in the future, dynamically allocate RAID map memory */ | |
3228 | if (le32_to_cpu(this_device->raid_map.structure_size) > | |
3229 | sizeof(this_device->raid_map)) { | |
3230 | dev_warn(&h->pdev->dev, "RAID map size is too large!\n"); | |
3231 | rc = -1; | |
3232 | } | |
3233 | hpsa_debug_map_buff(h, rc, &this_device->raid_map); | |
3234 | return rc; | |
25163bd5 WS |
3235 | out: |
3236 | cmd_free(h, c); | |
3237 | return rc; | |
283b4a9b SC |
3238 | } |
3239 | ||
d04e62b9 KB |
3240 | static int hpsa_bmic_sense_subsystem_information(struct ctlr_info *h, |
3241 | unsigned char scsi3addr[], u16 bmic_device_index, | |
3242 | struct bmic_sense_subsystem_info *buf, size_t bufsize) | |
3243 | { | |
3244 | int rc = IO_OK; | |
3245 | struct CommandList *c; | |
3246 | struct ErrorInfo *ei; | |
3247 | ||
3248 | c = cmd_alloc(h); | |
3249 | ||
3250 | rc = fill_cmd(c, BMIC_SENSE_SUBSYSTEM_INFORMATION, h, buf, bufsize, | |
3251 | 0, RAID_CTLR_LUNID, TYPE_CMD); | |
3252 | if (rc) | |
3253 | goto out; | |
3254 | ||
3255 | c->Request.CDB[2] = bmic_device_index & 0xff; | |
3256 | c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff; | |
3257 | ||
3258 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, | |
c448ecfa | 3259 | PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT); |
d04e62b9 KB |
3260 | if (rc) |
3261 | goto out; | |
3262 | ei = c->err_info; | |
3263 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
3264 | hpsa_scsi_interpret_error(h, c); | |
3265 | rc = -1; | |
3266 | } | |
3267 | out: | |
3268 | cmd_free(h, c); | |
3269 | return rc; | |
3270 | } | |
3271 | ||
66749d0d ST |
3272 | static int hpsa_bmic_id_controller(struct ctlr_info *h, |
3273 | struct bmic_identify_controller *buf, size_t bufsize) | |
3274 | { | |
3275 | int rc = IO_OK; | |
3276 | struct CommandList *c; | |
3277 | struct ErrorInfo *ei; | |
3278 | ||
3279 | c = cmd_alloc(h); | |
3280 | ||
3281 | rc = fill_cmd(c, BMIC_IDENTIFY_CONTROLLER, h, buf, bufsize, | |
3282 | 0, RAID_CTLR_LUNID, TYPE_CMD); | |
3283 | if (rc) | |
3284 | goto out; | |
3285 | ||
3286 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, | |
c448ecfa | 3287 | PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT); |
66749d0d ST |
3288 | if (rc) |
3289 | goto out; | |
3290 | ei = c->err_info; | |
3291 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
3292 | hpsa_scsi_interpret_error(h, c); | |
3293 | rc = -1; | |
3294 | } | |
3295 | out: | |
3296 | cmd_free(h, c); | |
3297 | return rc; | |
3298 | } | |
3299 | ||
03383736 DB |
3300 | static int hpsa_bmic_id_physical_device(struct ctlr_info *h, |
3301 | unsigned char scsi3addr[], u16 bmic_device_index, | |
3302 | struct bmic_identify_physical_device *buf, size_t bufsize) | |
3303 | { | |
3304 | int rc = IO_OK; | |
3305 | struct CommandList *c; | |
3306 | struct ErrorInfo *ei; | |
3307 | ||
3308 | c = cmd_alloc(h); | |
3309 | rc = fill_cmd(c, BMIC_IDENTIFY_PHYSICAL_DEVICE, h, buf, bufsize, | |
3310 | 0, RAID_CTLR_LUNID, TYPE_CMD); | |
3311 | if (rc) | |
3312 | goto out; | |
3313 | ||
3314 | c->Request.CDB[2] = bmic_device_index & 0xff; | |
3315 | c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff; | |
3316 | ||
25163bd5 | 3317 | hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE, |
c448ecfa | 3318 | DEFAULT_TIMEOUT); |
03383736 DB |
3319 | ei = c->err_info; |
3320 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
3321 | hpsa_scsi_interpret_error(h, c); | |
3322 | rc = -1; | |
3323 | } | |
3324 | out: | |
3325 | cmd_free(h, c); | |
d04e62b9 | 3326 | |
03383736 DB |
3327 | return rc; |
3328 | } | |
3329 | ||
cca8f13b DB |
3330 | /* |
3331 | * get enclosure information | |
3332 | * struct ReportExtendedLUNdata *rlep - Used for BMIC drive number | |
3333 | * struct hpsa_scsi_dev_t *encl_dev - device entry for enclosure | |
3334 | * Uses id_physical_device to determine the box_index. | |
3335 | */ | |
3336 | static void hpsa_get_enclosure_info(struct ctlr_info *h, | |
3337 | unsigned char *scsi3addr, | |
3338 | struct ReportExtendedLUNdata *rlep, int rle_index, | |
3339 | struct hpsa_scsi_dev_t *encl_dev) | |
3340 | { | |
3341 | int rc = -1; | |
3342 | struct CommandList *c = NULL; | |
3343 | struct ErrorInfo *ei = NULL; | |
3344 | struct bmic_sense_storage_box_params *bssbp = NULL; | |
3345 | struct bmic_identify_physical_device *id_phys = NULL; | |
3346 | struct ext_report_lun_entry *rle = &rlep->LUN[rle_index]; | |
3347 | u16 bmic_device_index = 0; | |
3348 | ||
3349 | bmic_device_index = GET_BMIC_DRIVE_NUMBER(&rle->lunid[0]); | |
3350 | ||
5ac517b8 DB |
3351 | if (encl_dev->target == -1 || encl_dev->lun == -1) { |
3352 | rc = IO_OK; | |
3353 | goto out; | |
3354 | } | |
3355 | ||
17a9e54a DB |
3356 | if (bmic_device_index == 0xFF00 || MASKED_DEVICE(&rle->lunid[0])) { |
3357 | rc = IO_OK; | |
cca8f13b | 3358 | goto out; |
17a9e54a | 3359 | } |
cca8f13b DB |
3360 | |
3361 | bssbp = kzalloc(sizeof(*bssbp), GFP_KERNEL); | |
3362 | if (!bssbp) | |
3363 | goto out; | |
3364 | ||
3365 | id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL); | |
3366 | if (!id_phys) | |
3367 | goto out; | |
3368 | ||
3369 | rc = hpsa_bmic_id_physical_device(h, scsi3addr, bmic_device_index, | |
3370 | id_phys, sizeof(*id_phys)); | |
3371 | if (rc) { | |
3372 | dev_warn(&h->pdev->dev, "%s: id_phys failed %d bdi[0x%x]\n", | |
3373 | __func__, encl_dev->external, bmic_device_index); | |
3374 | goto out; | |
3375 | } | |
3376 | ||
3377 | c = cmd_alloc(h); | |
3378 | ||
3379 | rc = fill_cmd(c, BMIC_SENSE_STORAGE_BOX_PARAMS, h, bssbp, | |
3380 | sizeof(*bssbp), 0, RAID_CTLR_LUNID, TYPE_CMD); | |
3381 | ||
3382 | if (rc) | |
3383 | goto out; | |
3384 | ||
3385 | if (id_phys->phys_connector[1] == 'E') | |
3386 | c->Request.CDB[5] = id_phys->box_index; | |
3387 | else | |
3388 | c->Request.CDB[5] = 0; | |
3389 | ||
3390 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE, | |
c448ecfa | 3391 | DEFAULT_TIMEOUT); |
cca8f13b DB |
3392 | if (rc) |
3393 | goto out; | |
3394 | ||
3395 | ei = c->err_info; | |
3396 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
3397 | rc = -1; | |
3398 | goto out; | |
3399 | } | |
3400 | ||
3401 | encl_dev->box[id_phys->active_path_number] = bssbp->phys_box_on_port; | |
3402 | memcpy(&encl_dev->phys_connector[id_phys->active_path_number], | |
3403 | bssbp->phys_connector, sizeof(bssbp->phys_connector)); | |
3404 | ||
3405 | rc = IO_OK; | |
3406 | out: | |
3407 | kfree(bssbp); | |
3408 | kfree(id_phys); | |
3409 | ||
3410 | if (c) | |
3411 | cmd_free(h, c); | |
3412 | ||
3413 | if (rc != IO_OK) | |
3414 | hpsa_show_dev_msg(KERN_INFO, h, encl_dev, | |
3415 | "Error, could not get enclosure information\n"); | |
3416 | } | |
3417 | ||
d04e62b9 KB |
3418 | static u64 hpsa_get_sas_address_from_report_physical(struct ctlr_info *h, |
3419 | unsigned char *scsi3addr) | |
3420 | { | |
3421 | struct ReportExtendedLUNdata *physdev; | |
3422 | u32 nphysicals; | |
3423 | u64 sa = 0; | |
3424 | int i; | |
3425 | ||
3426 | physdev = kzalloc(sizeof(*physdev), GFP_KERNEL); | |
3427 | if (!physdev) | |
3428 | return 0; | |
3429 | ||
3430 | if (hpsa_scsi_do_report_phys_luns(h, physdev, sizeof(*physdev))) { | |
3431 | dev_err(&h->pdev->dev, "report physical LUNs failed.\n"); | |
3432 | kfree(physdev); | |
3433 | return 0; | |
3434 | } | |
3435 | nphysicals = get_unaligned_be32(physdev->LUNListLength) / 24; | |
3436 | ||
3437 | for (i = 0; i < nphysicals; i++) | |
3438 | if (!memcmp(&physdev->LUN[i].lunid[0], scsi3addr, 8)) { | |
3439 | sa = get_unaligned_be64(&physdev->LUN[i].wwid[0]); | |
3440 | break; | |
3441 | } | |
3442 | ||
3443 | kfree(physdev); | |
3444 | ||
3445 | return sa; | |
3446 | } | |
3447 | ||
3448 | static void hpsa_get_sas_address(struct ctlr_info *h, unsigned char *scsi3addr, | |
3449 | struct hpsa_scsi_dev_t *dev) | |
3450 | { | |
3451 | int rc; | |
3452 | u64 sa = 0; | |
3453 | ||
3454 | if (is_hba_lunid(scsi3addr)) { | |
3455 | struct bmic_sense_subsystem_info *ssi; | |
3456 | ||
3457 | ssi = kzalloc(sizeof(*ssi), GFP_KERNEL); | |
7e8a9486 | 3458 | if (!ssi) |
d04e62b9 | 3459 | return; |
d04e62b9 KB |
3460 | |
3461 | rc = hpsa_bmic_sense_subsystem_information(h, | |
3462 | scsi3addr, 0, ssi, sizeof(*ssi)); | |
3463 | if (rc == 0) { | |
3464 | sa = get_unaligned_be64(ssi->primary_world_wide_id); | |
3465 | h->sas_address = sa; | |
3466 | } | |
3467 | ||
3468 | kfree(ssi); | |
3469 | } else | |
3470 | sa = hpsa_get_sas_address_from_report_physical(h, scsi3addr); | |
3471 | ||
3472 | dev->sas_address = sa; | |
3473 | } | |
3474 | ||
3475 | /* Get a device id from inquiry page 0x83 */ | |
8383278d | 3476 | static bool hpsa_vpd_page_supported(struct ctlr_info *h, |
1b70150a SC |
3477 | unsigned char scsi3addr[], u8 page) |
3478 | { | |
3479 | int rc; | |
3480 | int i; | |
3481 | int pages; | |
3482 | unsigned char *buf, bufsize; | |
3483 | ||
3484 | buf = kzalloc(256, GFP_KERNEL); | |
3485 | if (!buf) | |
8383278d | 3486 | return false; |
1b70150a SC |
3487 | |
3488 | /* Get the size of the page list first */ | |
3489 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, | |
3490 | VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES, | |
3491 | buf, HPSA_VPD_HEADER_SZ); | |
3492 | if (rc != 0) | |
3493 | goto exit_unsupported; | |
3494 | pages = buf[3]; | |
3495 | if ((pages + HPSA_VPD_HEADER_SZ) <= 255) | |
3496 | bufsize = pages + HPSA_VPD_HEADER_SZ; | |
3497 | else | |
3498 | bufsize = 255; | |
3499 | ||
3500 | /* Get the whole VPD page list */ | |
3501 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, | |
3502 | VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES, | |
3503 | buf, bufsize); | |
3504 | if (rc != 0) | |
3505 | goto exit_unsupported; | |
3506 | ||
3507 | pages = buf[3]; | |
3508 | for (i = 1; i <= pages; i++) | |
3509 | if (buf[3 + i] == page) | |
3510 | goto exit_supported; | |
3511 | exit_unsupported: | |
3512 | kfree(buf); | |
8383278d | 3513 | return false; |
1b70150a SC |
3514 | exit_supported: |
3515 | kfree(buf); | |
8383278d | 3516 | return true; |
1b70150a SC |
3517 | } |
3518 | ||
283b4a9b SC |
3519 | static void hpsa_get_ioaccel_status(struct ctlr_info *h, |
3520 | unsigned char *scsi3addr, struct hpsa_scsi_dev_t *this_device) | |
3521 | { | |
3522 | int rc; | |
3523 | unsigned char *buf; | |
3524 | u8 ioaccel_status; | |
3525 | ||
3526 | this_device->offload_config = 0; | |
3527 | this_device->offload_enabled = 0; | |
41ce4c35 | 3528 | this_device->offload_to_be_enabled = 0; |
283b4a9b SC |
3529 | |
3530 | buf = kzalloc(64, GFP_KERNEL); | |
3531 | if (!buf) | |
3532 | return; | |
1b70150a SC |
3533 | if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_IOACCEL_STATUS)) |
3534 | goto out; | |
283b4a9b | 3535 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, |
b7bb24eb | 3536 | VPD_PAGE | HPSA_VPD_LV_IOACCEL_STATUS, buf, 64); |
283b4a9b SC |
3537 | if (rc != 0) |
3538 | goto out; | |
3539 | ||
3540 | #define IOACCEL_STATUS_BYTE 4 | |
3541 | #define OFFLOAD_CONFIGURED_BIT 0x01 | |
3542 | #define OFFLOAD_ENABLED_BIT 0x02 | |
3543 | ioaccel_status = buf[IOACCEL_STATUS_BYTE]; | |
3544 | this_device->offload_config = | |
3545 | !!(ioaccel_status & OFFLOAD_CONFIGURED_BIT); | |
3546 | if (this_device->offload_config) { | |
3547 | this_device->offload_enabled = | |
3548 | !!(ioaccel_status & OFFLOAD_ENABLED_BIT); | |
3549 | if (hpsa_get_raid_map(h, scsi3addr, this_device)) | |
3550 | this_device->offload_enabled = 0; | |
3551 | } | |
41ce4c35 | 3552 | this_device->offload_to_be_enabled = this_device->offload_enabled; |
283b4a9b SC |
3553 | out: |
3554 | kfree(buf); | |
3555 | return; | |
3556 | } | |
3557 | ||
edd16368 SC |
3558 | /* Get the device id from inquiry page 0x83 */ |
3559 | static int hpsa_get_device_id(struct ctlr_info *h, unsigned char *scsi3addr, | |
75d23d89 | 3560 | unsigned char *device_id, int index, int buflen) |
edd16368 SC |
3561 | { |
3562 | int rc; | |
3563 | unsigned char *buf; | |
3564 | ||
8383278d ST |
3565 | /* Does controller have VPD for device id? */ |
3566 | if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_DEVICE_ID)) | |
3567 | return 1; /* not supported */ | |
3568 | ||
edd16368 SC |
3569 | buf = kzalloc(64, GFP_KERNEL); |
3570 | if (!buf) | |
a84d794d | 3571 | return -ENOMEM; |
8383278d ST |
3572 | |
3573 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | | |
3574 | HPSA_VPD_LV_DEVICE_ID, buf, 64); | |
3575 | if (rc == 0) { | |
3576 | if (buflen > 16) | |
3577 | buflen = 16; | |
3578 | memcpy(device_id, &buf[8], buflen); | |
3579 | } | |
75d23d89 | 3580 | |
edd16368 | 3581 | kfree(buf); |
75d23d89 | 3582 | |
8383278d | 3583 | return rc; /*0 - got id, otherwise, didn't */ |
edd16368 SC |
3584 | } |
3585 | ||
3586 | static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical, | |
03383736 | 3587 | void *buf, int bufsize, |
edd16368 SC |
3588 | int extended_response) |
3589 | { | |
3590 | int rc = IO_OK; | |
3591 | struct CommandList *c; | |
3592 | unsigned char scsi3addr[8]; | |
3593 | struct ErrorInfo *ei; | |
3594 | ||
45fcb86e | 3595 | c = cmd_alloc(h); |
bf43caf3 | 3596 | |
e89c0ae7 SC |
3597 | /* address the controller */ |
3598 | memset(scsi3addr, 0, sizeof(scsi3addr)); | |
a2dac136 SC |
3599 | if (fill_cmd(c, logical ? HPSA_REPORT_LOG : HPSA_REPORT_PHYS, h, |
3600 | buf, bufsize, 0, scsi3addr, TYPE_CMD)) { | |
45f769b2 | 3601 | rc = -EAGAIN; |
a2dac136 SC |
3602 | goto out; |
3603 | } | |
edd16368 SC |
3604 | if (extended_response) |
3605 | c->Request.CDB[1] = extended_response; | |
25163bd5 | 3606 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
c448ecfa | 3607 | PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT); |
25163bd5 WS |
3608 | if (rc) |
3609 | goto out; | |
edd16368 SC |
3610 | ei = c->err_info; |
3611 | if (ei->CommandStatus != 0 && | |
3612 | ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
d1e8beac | 3613 | hpsa_scsi_interpret_error(h, c); |
45f769b2 | 3614 | rc = -EIO; |
283b4a9b | 3615 | } else { |
03383736 DB |
3616 | struct ReportLUNdata *rld = buf; |
3617 | ||
3618 | if (rld->extended_response_flag != extended_response) { | |
45f769b2 HR |
3619 | if (!h->legacy_board) { |
3620 | dev_err(&h->pdev->dev, | |
3621 | "report luns requested format %u, got %u\n", | |
3622 | extended_response, | |
3623 | rld->extended_response_flag); | |
3624 | rc = -EINVAL; | |
3625 | } else | |
3626 | rc = -EOPNOTSUPP; | |
283b4a9b | 3627 | } |
edd16368 | 3628 | } |
a2dac136 | 3629 | out: |
45fcb86e | 3630 | cmd_free(h, c); |
edd16368 SC |
3631 | return rc; |
3632 | } | |
3633 | ||
3634 | static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h, | |
03383736 | 3635 | struct ReportExtendedLUNdata *buf, int bufsize) |
edd16368 | 3636 | { |
2a80d545 HR |
3637 | int rc; |
3638 | struct ReportLUNdata *lbuf; | |
3639 | ||
3640 | rc = hpsa_scsi_do_report_luns(h, 0, buf, bufsize, | |
3641 | HPSA_REPORT_PHYS_EXTENDED); | |
45f769b2 | 3642 | if (!rc || rc != -EOPNOTSUPP) |
2a80d545 HR |
3643 | return rc; |
3644 | ||
3645 | /* REPORT PHYS EXTENDED is not supported */ | |
3646 | lbuf = kzalloc(sizeof(*lbuf), GFP_KERNEL); | |
3647 | if (!lbuf) | |
3648 | return -ENOMEM; | |
3649 | ||
3650 | rc = hpsa_scsi_do_report_luns(h, 0, lbuf, sizeof(*lbuf), 0); | |
3651 | if (!rc) { | |
3652 | int i; | |
3653 | u32 nphys; | |
3654 | ||
3655 | /* Copy ReportLUNdata header */ | |
3656 | memcpy(buf, lbuf, 8); | |
3657 | nphys = be32_to_cpu(*((__be32 *)lbuf->LUNListLength)) / 8; | |
3658 | for (i = 0; i < nphys; i++) | |
3659 | memcpy(buf->LUN[i].lunid, lbuf->LUN[i], 8); | |
3660 | } | |
3661 | kfree(lbuf); | |
3662 | return rc; | |
edd16368 SC |
3663 | } |
3664 | ||
3665 | static inline int hpsa_scsi_do_report_log_luns(struct ctlr_info *h, | |
3666 | struct ReportLUNdata *buf, int bufsize) | |
3667 | { | |
3668 | return hpsa_scsi_do_report_luns(h, 1, buf, bufsize, 0); | |
3669 | } | |
3670 | ||
3671 | static inline void hpsa_set_bus_target_lun(struct hpsa_scsi_dev_t *device, | |
3672 | int bus, int target, int lun) | |
3673 | { | |
3674 | device->bus = bus; | |
3675 | device->target = target; | |
3676 | device->lun = lun; | |
3677 | } | |
3678 | ||
9846590e SC |
3679 | /* Use VPD inquiry to get details of volume status */ |
3680 | static int hpsa_get_volume_status(struct ctlr_info *h, | |
3681 | unsigned char scsi3addr[]) | |
3682 | { | |
3683 | int rc; | |
3684 | int status; | |
3685 | int size; | |
3686 | unsigned char *buf; | |
3687 | ||
3688 | buf = kzalloc(64, GFP_KERNEL); | |
3689 | if (!buf) | |
3690 | return HPSA_VPD_LV_STATUS_UNSUPPORTED; | |
3691 | ||
3692 | /* Does controller have VPD for logical volume status? */ | |
24a4b078 | 3693 | if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_STATUS)) |
9846590e | 3694 | goto exit_failed; |
9846590e SC |
3695 | |
3696 | /* Get the size of the VPD return buffer */ | |
3697 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | HPSA_VPD_LV_STATUS, | |
3698 | buf, HPSA_VPD_HEADER_SZ); | |
24a4b078 | 3699 | if (rc != 0) |
9846590e | 3700 | goto exit_failed; |
9846590e SC |
3701 | size = buf[3]; |
3702 | ||
3703 | /* Now get the whole VPD buffer */ | |
3704 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | HPSA_VPD_LV_STATUS, | |
3705 | buf, size + HPSA_VPD_HEADER_SZ); | |
24a4b078 | 3706 | if (rc != 0) |
9846590e | 3707 | goto exit_failed; |
9846590e SC |
3708 | status = buf[4]; /* status byte */ |
3709 | ||
3710 | kfree(buf); | |
3711 | return status; | |
3712 | exit_failed: | |
3713 | kfree(buf); | |
3714 | return HPSA_VPD_LV_STATUS_UNSUPPORTED; | |
3715 | } | |
3716 | ||
3717 | /* Determine offline status of a volume. | |
3718 | * Return either: | |
3719 | * 0 (not offline) | |
67955ba3 | 3720 | * 0xff (offline for unknown reasons) |
9846590e SC |
3721 | * # (integer code indicating one of several NOT READY states |
3722 | * describing why a volume is to be kept offline) | |
3723 | */ | |
85b29008 | 3724 | static unsigned char hpsa_volume_offline(struct ctlr_info *h, |
9846590e SC |
3725 | unsigned char scsi3addr[]) |
3726 | { | |
3727 | struct CommandList *c; | |
9437ac43 SC |
3728 | unsigned char *sense; |
3729 | u8 sense_key, asc, ascq; | |
3730 | int sense_len; | |
25163bd5 | 3731 | int rc, ldstat = 0; |
9846590e SC |
3732 | u16 cmd_status; |
3733 | u8 scsi_status; | |
3734 | #define ASC_LUN_NOT_READY 0x04 | |
3735 | #define ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS 0x04 | |
3736 | #define ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ 0x02 | |
3737 | ||
3738 | c = cmd_alloc(h); | |
bf43caf3 | 3739 | |
9846590e | 3740 | (void) fill_cmd(c, TEST_UNIT_READY, h, NULL, 0, 0, scsi3addr, TYPE_CMD); |
c448ecfa DB |
3741 | rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, |
3742 | DEFAULT_TIMEOUT); | |
25163bd5 WS |
3743 | if (rc) { |
3744 | cmd_free(h, c); | |
85b29008 | 3745 | return HPSA_VPD_LV_STATUS_UNSUPPORTED; |
25163bd5 | 3746 | } |
9846590e | 3747 | sense = c->err_info->SenseInfo; |
9437ac43 SC |
3748 | if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo)) |
3749 | sense_len = sizeof(c->err_info->SenseInfo); | |
3750 | else | |
3751 | sense_len = c->err_info->SenseLen; | |
3752 | decode_sense_data(sense, sense_len, &sense_key, &asc, &ascq); | |
9846590e SC |
3753 | cmd_status = c->err_info->CommandStatus; |
3754 | scsi_status = c->err_info->ScsiStatus; | |
3755 | cmd_free(h, c); | |
9846590e SC |
3756 | |
3757 | /* Determine the reason for not ready state */ | |
3758 | ldstat = hpsa_get_volume_status(h, scsi3addr); | |
3759 | ||
3760 | /* Keep volume offline in certain cases: */ | |
3761 | switch (ldstat) { | |
85b29008 | 3762 | case HPSA_LV_FAILED: |
9846590e | 3763 | case HPSA_LV_UNDERGOING_ERASE: |
5ca01204 | 3764 | case HPSA_LV_NOT_AVAILABLE: |
9846590e SC |
3765 | case HPSA_LV_UNDERGOING_RPI: |
3766 | case HPSA_LV_PENDING_RPI: | |
3767 | case HPSA_LV_ENCRYPTED_NO_KEY: | |
3768 | case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER: | |
3769 | case HPSA_LV_UNDERGOING_ENCRYPTION: | |
3770 | case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING: | |
3771 | case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: | |
3772 | return ldstat; | |
3773 | case HPSA_VPD_LV_STATUS_UNSUPPORTED: | |
3774 | /* If VPD status page isn't available, | |
3775 | * use ASC/ASCQ to determine state | |
3776 | */ | |
3777 | if ((ascq == ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS) || | |
3778 | (ascq == ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ)) | |
3779 | return ldstat; | |
3780 | break; | |
3781 | default: | |
3782 | break; | |
3783 | } | |
85b29008 | 3784 | return HPSA_LV_OK; |
9846590e SC |
3785 | } |
3786 | ||
edd16368 | 3787 | static int hpsa_update_device_info(struct ctlr_info *h, |
0b0e1d6c SC |
3788 | unsigned char scsi3addr[], struct hpsa_scsi_dev_t *this_device, |
3789 | unsigned char *is_OBDR_device) | |
edd16368 | 3790 | { |
0b0e1d6c SC |
3791 | |
3792 | #define OBDR_SIG_OFFSET 43 | |
3793 | #define OBDR_TAPE_SIG "$DR-10" | |
3794 | #define OBDR_SIG_LEN (sizeof(OBDR_TAPE_SIG) - 1) | |
3795 | #define OBDR_TAPE_INQ_SIZE (OBDR_SIG_OFFSET + OBDR_SIG_LEN) | |
3796 | ||
ea6d3bc3 | 3797 | unsigned char *inq_buff; |
0b0e1d6c | 3798 | unsigned char *obdr_sig; |
683fc444 | 3799 | int rc = 0; |
edd16368 | 3800 | |
ea6d3bc3 | 3801 | inq_buff = kzalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL); |
683fc444 DB |
3802 | if (!inq_buff) { |
3803 | rc = -ENOMEM; | |
edd16368 | 3804 | goto bail_out; |
683fc444 | 3805 | } |
edd16368 | 3806 | |
edd16368 SC |
3807 | /* Do an inquiry to the device to see what it is. */ |
3808 | if (hpsa_scsi_do_inquiry(h, scsi3addr, 0, inq_buff, | |
3809 | (unsigned char) OBDR_TAPE_INQ_SIZE) != 0) { | |
edd16368 | 3810 | dev_err(&h->pdev->dev, |
85b29008 DB |
3811 | "%s: inquiry failed, device will be skipped.\n", |
3812 | __func__); | |
3813 | rc = HPSA_INQUIRY_FAILED; | |
edd16368 SC |
3814 | goto bail_out; |
3815 | } | |
3816 | ||
4af61e4f DB |
3817 | scsi_sanitize_inquiry_string(&inq_buff[8], 8); |
3818 | scsi_sanitize_inquiry_string(&inq_buff[16], 16); | |
75d23d89 | 3819 | |
edd16368 SC |
3820 | this_device->devtype = (inq_buff[0] & 0x1f); |
3821 | memcpy(this_device->scsi3addr, scsi3addr, 8); | |
3822 | memcpy(this_device->vendor, &inq_buff[8], | |
3823 | sizeof(this_device->vendor)); | |
3824 | memcpy(this_device->model, &inq_buff[16], | |
3825 | sizeof(this_device->model)); | |
7630b3a5 | 3826 | this_device->rev = inq_buff[2]; |
edd16368 SC |
3827 | memset(this_device->device_id, 0, |
3828 | sizeof(this_device->device_id)); | |
8383278d | 3829 | if (hpsa_get_device_id(h, scsi3addr, this_device->device_id, 8, |
55e1f9f0 | 3830 | sizeof(this_device->device_id)) < 0) |
8383278d ST |
3831 | dev_err(&h->pdev->dev, |
3832 | "hpsa%d: %s: can't get device id for host %d:C0:T%d:L%d\t%s\t%.16s\n", | |
3833 | h->ctlr, __func__, | |
3834 | h->scsi_host->host_no, | |
3835 | this_device->target, this_device->lun, | |
3836 | scsi_device_type(this_device->devtype), | |
3837 | this_device->model); | |
edd16368 | 3838 | |
af15ed36 DB |
3839 | if ((this_device->devtype == TYPE_DISK || |
3840 | this_device->devtype == TYPE_ZBC) && | |
283b4a9b | 3841 | is_logical_dev_addr_mode(scsi3addr)) { |
85b29008 | 3842 | unsigned char volume_offline; |
67955ba3 | 3843 | |
edd16368 | 3844 | hpsa_get_raid_level(h, scsi3addr, &this_device->raid_level); |
283b4a9b SC |
3845 | if (h->fw_support & MISC_FW_RAID_OFFLOAD_BASIC) |
3846 | hpsa_get_ioaccel_status(h, scsi3addr, this_device); | |
67955ba3 | 3847 | volume_offline = hpsa_volume_offline(h, scsi3addr); |
4d17944a HR |
3848 | if (volume_offline == HPSA_VPD_LV_STATUS_UNSUPPORTED && |
3849 | h->legacy_board) { | |
3850 | /* | |
3851 | * Legacy boards might not support volume status | |
3852 | */ | |
3853 | dev_info(&h->pdev->dev, | |
3854 | "C0:T%d:L%d Volume status not available, assuming online.\n", | |
3855 | this_device->target, this_device->lun); | |
3856 | volume_offline = 0; | |
3857 | } | |
eb94588d | 3858 | this_device->volume_offline = volume_offline; |
85b29008 DB |
3859 | if (volume_offline == HPSA_LV_FAILED) { |
3860 | rc = HPSA_LV_FAILED; | |
3861 | dev_err(&h->pdev->dev, | |
3862 | "%s: LV failed, device will be skipped.\n", | |
3863 | __func__); | |
3864 | goto bail_out; | |
3865 | } | |
283b4a9b | 3866 | } else { |
edd16368 | 3867 | this_device->raid_level = RAID_UNKNOWN; |
283b4a9b SC |
3868 | this_device->offload_config = 0; |
3869 | this_device->offload_enabled = 0; | |
41ce4c35 | 3870 | this_device->offload_to_be_enabled = 0; |
a3144e0b | 3871 | this_device->hba_ioaccel_enabled = 0; |
9846590e | 3872 | this_device->volume_offline = 0; |
03383736 | 3873 | this_device->queue_depth = h->nr_cmds; |
283b4a9b | 3874 | } |
edd16368 | 3875 | |
5086435e DB |
3876 | if (this_device->external) |
3877 | this_device->queue_depth = EXTERNAL_QD; | |
3878 | ||
0b0e1d6c SC |
3879 | if (is_OBDR_device) { |
3880 | /* See if this is a One-Button-Disaster-Recovery device | |
3881 | * by looking for "$DR-10" at offset 43 in inquiry data. | |
3882 | */ | |
3883 | obdr_sig = &inq_buff[OBDR_SIG_OFFSET]; | |
3884 | *is_OBDR_device = (this_device->devtype == TYPE_ROM && | |
3885 | strncmp(obdr_sig, OBDR_TAPE_SIG, | |
3886 | OBDR_SIG_LEN) == 0); | |
3887 | } | |
edd16368 SC |
3888 | kfree(inq_buff); |
3889 | return 0; | |
3890 | ||
3891 | bail_out: | |
3892 | kfree(inq_buff); | |
683fc444 | 3893 | return rc; |
edd16368 SC |
3894 | } |
3895 | ||
c795505a KB |
3896 | /* |
3897 | * Helper function to assign bus, target, lun mapping of devices. | |
edd16368 SC |
3898 | * Logical drive target and lun are assigned at this time, but |
3899 | * physical device lun and target assignment are deferred (assigned | |
3900 | * in hpsa_find_target_lun, called by hpsa_scsi_add_entry.) | |
c795505a | 3901 | */ |
edd16368 | 3902 | static void figure_bus_target_lun(struct ctlr_info *h, |
1f310bde | 3903 | u8 *lunaddrbytes, struct hpsa_scsi_dev_t *device) |
edd16368 | 3904 | { |
c795505a | 3905 | u32 lunid = get_unaligned_le32(lunaddrbytes); |
1f310bde SC |
3906 | |
3907 | if (!is_logical_dev_addr_mode(lunaddrbytes)) { | |
3908 | /* physical device, target and lun filled in later */ | |
7630b3a5 HR |
3909 | if (is_hba_lunid(lunaddrbytes)) { |
3910 | int bus = HPSA_HBA_BUS; | |
3911 | ||
3912 | if (!device->rev) | |
3913 | bus = HPSA_LEGACY_HBA_BUS; | |
c795505a | 3914 | hpsa_set_bus_target_lun(device, |
7630b3a5 HR |
3915 | bus, 0, lunid & 0x3fff); |
3916 | } else | |
1f310bde | 3917 | /* defer target, lun assignment for physical devices */ |
c795505a KB |
3918 | hpsa_set_bus_target_lun(device, |
3919 | HPSA_PHYSICAL_DEVICE_BUS, -1, -1); | |
1f310bde SC |
3920 | return; |
3921 | } | |
3922 | /* It's a logical device */ | |
66749d0d | 3923 | if (device->external) { |
1f310bde | 3924 | hpsa_set_bus_target_lun(device, |
c795505a KB |
3925 | HPSA_EXTERNAL_RAID_VOLUME_BUS, (lunid >> 16) & 0x3fff, |
3926 | lunid & 0x00ff); | |
1f310bde | 3927 | return; |
edd16368 | 3928 | } |
c795505a KB |
3929 | hpsa_set_bus_target_lun(device, HPSA_RAID_VOLUME_BUS, |
3930 | 0, lunid & 0x3fff); | |
edd16368 SC |
3931 | } |
3932 | ||
66749d0d ST |
3933 | static int figure_external_status(struct ctlr_info *h, int raid_ctlr_position, |
3934 | int i, int nphysicals, int nlocal_logicals) | |
3935 | { | |
3936 | /* In report logicals, local logicals are listed first, | |
3937 | * then any externals. | |
3938 | */ | |
3939 | int logicals_start = nphysicals + (raid_ctlr_position == 0); | |
3940 | ||
3941 | if (i == raid_ctlr_position) | |
3942 | return 0; | |
3943 | ||
3944 | if (i < logicals_start) | |
3945 | return 0; | |
3946 | ||
3947 | /* i is in logicals range, but still within local logicals */ | |
3948 | if ((i - nphysicals - (raid_ctlr_position == 0)) < nlocal_logicals) | |
3949 | return 0; | |
3950 | ||
3951 | return 1; /* it's an external lun */ | |
3952 | } | |
3953 | ||
edd16368 SC |
3954 | /* |
3955 | * Do CISS_REPORT_PHYS and CISS_REPORT_LOG. Data is returned in physdev, | |
3956 | * logdev. The number of luns in physdev and logdev are returned in | |
3957 | * *nphysicals and *nlogicals, respectively. | |
3958 | * Returns 0 on success, -1 otherwise. | |
3959 | */ | |
3960 | static int hpsa_gather_lun_info(struct ctlr_info *h, | |
03383736 | 3961 | struct ReportExtendedLUNdata *physdev, u32 *nphysicals, |
01a02ffc | 3962 | struct ReportLUNdata *logdev, u32 *nlogicals) |
edd16368 | 3963 | { |
03383736 | 3964 | if (hpsa_scsi_do_report_phys_luns(h, physdev, sizeof(*physdev))) { |
edd16368 SC |
3965 | dev_err(&h->pdev->dev, "report physical LUNs failed.\n"); |
3966 | return -1; | |
3967 | } | |
03383736 | 3968 | *nphysicals = be32_to_cpu(*((__be32 *)physdev->LUNListLength)) / 24; |
edd16368 | 3969 | if (*nphysicals > HPSA_MAX_PHYS_LUN) { |
03383736 DB |
3970 | dev_warn(&h->pdev->dev, "maximum physical LUNs (%d) exceeded. %d LUNs ignored.\n", |
3971 | HPSA_MAX_PHYS_LUN, *nphysicals - HPSA_MAX_PHYS_LUN); | |
edd16368 SC |
3972 | *nphysicals = HPSA_MAX_PHYS_LUN; |
3973 | } | |
03383736 | 3974 | if (hpsa_scsi_do_report_log_luns(h, logdev, sizeof(*logdev))) { |
edd16368 SC |
3975 | dev_err(&h->pdev->dev, "report logical LUNs failed.\n"); |
3976 | return -1; | |
3977 | } | |
6df1e954 | 3978 | *nlogicals = be32_to_cpu(*((__be32 *) logdev->LUNListLength)) / 8; |
edd16368 SC |
3979 | /* Reject Logicals in excess of our max capability. */ |
3980 | if (*nlogicals > HPSA_MAX_LUN) { | |
3981 | dev_warn(&h->pdev->dev, | |
3982 | "maximum logical LUNs (%d) exceeded. " | |
3983 | "%d LUNs ignored.\n", HPSA_MAX_LUN, | |
3984 | *nlogicals - HPSA_MAX_LUN); | |
3985 | *nlogicals = HPSA_MAX_LUN; | |
3986 | } | |
3987 | if (*nlogicals + *nphysicals > HPSA_MAX_PHYS_LUN) { | |
3988 | dev_warn(&h->pdev->dev, | |
3989 | "maximum logical + physical LUNs (%d) exceeded. " | |
3990 | "%d LUNs ignored.\n", HPSA_MAX_PHYS_LUN, | |
3991 | *nphysicals + *nlogicals - HPSA_MAX_PHYS_LUN); | |
3992 | *nlogicals = HPSA_MAX_PHYS_LUN - *nphysicals; | |
3993 | } | |
3994 | return 0; | |
3995 | } | |
3996 | ||
42a91641 DB |
3997 | static u8 *figure_lunaddrbytes(struct ctlr_info *h, int raid_ctlr_position, |
3998 | int i, int nphysicals, int nlogicals, | |
a93aa1fe | 3999 | struct ReportExtendedLUNdata *physdev_list, |
339b2b14 SC |
4000 | struct ReportLUNdata *logdev_list) |
4001 | { | |
4002 | /* Helper function, figure out where the LUN ID info is coming from | |
4003 | * given index i, lists of physical and logical devices, where in | |
4004 | * the list the raid controller is supposed to appear (first or last) | |
4005 | */ | |
4006 | ||
4007 | int logicals_start = nphysicals + (raid_ctlr_position == 0); | |
4008 | int last_device = nphysicals + nlogicals + (raid_ctlr_position == 0); | |
4009 | ||
4010 | if (i == raid_ctlr_position) | |
4011 | return RAID_CTLR_LUNID; | |
4012 | ||
4013 | if (i < logicals_start) | |
d5b5d964 SC |
4014 | return &physdev_list->LUN[i - |
4015 | (raid_ctlr_position == 0)].lunid[0]; | |
339b2b14 SC |
4016 | |
4017 | if (i < last_device) | |
4018 | return &logdev_list->LUN[i - nphysicals - | |
4019 | (raid_ctlr_position == 0)][0]; | |
4020 | BUG(); | |
4021 | return NULL; | |
4022 | } | |
4023 | ||
03383736 DB |
4024 | /* get physical drive ioaccel handle and queue depth */ |
4025 | static void hpsa_get_ioaccel_drive_info(struct ctlr_info *h, | |
4026 | struct hpsa_scsi_dev_t *dev, | |
f2039b03 | 4027 | struct ReportExtendedLUNdata *rlep, int rle_index, |
03383736 DB |
4028 | struct bmic_identify_physical_device *id_phys) |
4029 | { | |
4030 | int rc; | |
4b6e5597 ST |
4031 | struct ext_report_lun_entry *rle; |
4032 | ||
4b6e5597 | 4033 | rle = &rlep->LUN[rle_index]; |
03383736 DB |
4034 | |
4035 | dev->ioaccel_handle = rle->ioaccel_handle; | |
f2039b03 | 4036 | if ((rle->device_flags & 0x08) && dev->ioaccel_handle) |
a3144e0b | 4037 | dev->hba_ioaccel_enabled = 1; |
03383736 | 4038 | memset(id_phys, 0, sizeof(*id_phys)); |
f2039b03 DB |
4039 | rc = hpsa_bmic_id_physical_device(h, &rle->lunid[0], |
4040 | GET_BMIC_DRIVE_NUMBER(&rle->lunid[0]), id_phys, | |
03383736 DB |
4041 | sizeof(*id_phys)); |
4042 | if (!rc) | |
4043 | /* Reserve space for FW operations */ | |
4044 | #define DRIVE_CMDS_RESERVED_FOR_FW 2 | |
4045 | #define DRIVE_QUEUE_DEPTH 7 | |
4046 | dev->queue_depth = | |
4047 | le16_to_cpu(id_phys->current_queue_depth_limit) - | |
4048 | DRIVE_CMDS_RESERVED_FOR_FW; | |
4049 | else | |
4050 | dev->queue_depth = DRIVE_QUEUE_DEPTH; /* conservative */ | |
03383736 DB |
4051 | } |
4052 | ||
8270b862 | 4053 | static void hpsa_get_path_info(struct hpsa_scsi_dev_t *this_device, |
f2039b03 | 4054 | struct ReportExtendedLUNdata *rlep, int rle_index, |
8270b862 JH |
4055 | struct bmic_identify_physical_device *id_phys) |
4056 | { | |
f2039b03 DB |
4057 | struct ext_report_lun_entry *rle = &rlep->LUN[rle_index]; |
4058 | ||
4059 | if ((rle->device_flags & 0x08) && this_device->ioaccel_handle) | |
8270b862 JH |
4060 | this_device->hba_ioaccel_enabled = 1; |
4061 | ||
4062 | memcpy(&this_device->active_path_index, | |
4063 | &id_phys->active_path_number, | |
4064 | sizeof(this_device->active_path_index)); | |
4065 | memcpy(&this_device->path_map, | |
4066 | &id_phys->redundant_path_present_map, | |
4067 | sizeof(this_device->path_map)); | |
4068 | memcpy(&this_device->box, | |
4069 | &id_phys->alternate_paths_phys_box_on_port, | |
4070 | sizeof(this_device->box)); | |
4071 | memcpy(&this_device->phys_connector, | |
4072 | &id_phys->alternate_paths_phys_connector, | |
4073 | sizeof(this_device->phys_connector)); | |
4074 | memcpy(&this_device->bay, | |
4075 | &id_phys->phys_bay_in_box, | |
4076 | sizeof(this_device->bay)); | |
4077 | } | |
4078 | ||
66749d0d ST |
4079 | /* get number of local logical disks. */ |
4080 | static int hpsa_set_local_logical_count(struct ctlr_info *h, | |
4081 | struct bmic_identify_controller *id_ctlr, | |
4082 | u32 *nlocals) | |
4083 | { | |
4084 | int rc; | |
4085 | ||
4086 | if (!id_ctlr) { | |
4087 | dev_warn(&h->pdev->dev, "%s: id_ctlr buffer is NULL.\n", | |
4088 | __func__); | |
4089 | return -ENOMEM; | |
4090 | } | |
4091 | memset(id_ctlr, 0, sizeof(*id_ctlr)); | |
4092 | rc = hpsa_bmic_id_controller(h, id_ctlr, sizeof(*id_ctlr)); | |
4093 | if (!rc) | |
4094 | if (id_ctlr->configured_logical_drive_count < 256) | |
4095 | *nlocals = id_ctlr->configured_logical_drive_count; | |
4096 | else | |
4097 | *nlocals = le16_to_cpu( | |
4098 | id_ctlr->extended_logical_unit_count); | |
4099 | else | |
4100 | *nlocals = -1; | |
4101 | return rc; | |
4102 | } | |
4103 | ||
64ce60ca DB |
4104 | static bool hpsa_is_disk_spare(struct ctlr_info *h, u8 *lunaddrbytes) |
4105 | { | |
4106 | struct bmic_identify_physical_device *id_phys; | |
4107 | bool is_spare = false; | |
4108 | int rc; | |
4109 | ||
4110 | id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL); | |
4111 | if (!id_phys) | |
4112 | return false; | |
4113 | ||
4114 | rc = hpsa_bmic_id_physical_device(h, | |
4115 | lunaddrbytes, | |
4116 | GET_BMIC_DRIVE_NUMBER(lunaddrbytes), | |
4117 | id_phys, sizeof(*id_phys)); | |
4118 | if (rc == 0) | |
4119 | is_spare = (id_phys->more_flags >> 6) & 0x01; | |
4120 | ||
4121 | kfree(id_phys); | |
4122 | return is_spare; | |
4123 | } | |
4124 | ||
4125 | #define RPL_DEV_FLAG_NON_DISK 0x1 | |
4126 | #define RPL_DEV_FLAG_UNCONFIG_DISK_REPORTING_SUPPORTED 0x2 | |
4127 | #define RPL_DEV_FLAG_UNCONFIG_DISK 0x4 | |
4128 | ||
4129 | #define BMIC_DEVICE_TYPE_ENCLOSURE 6 | |
4130 | ||
4131 | static bool hpsa_skip_device(struct ctlr_info *h, u8 *lunaddrbytes, | |
4132 | struct ext_report_lun_entry *rle) | |
4133 | { | |
4134 | u8 device_flags; | |
4135 | u8 device_type; | |
4136 | ||
4137 | if (!MASKED_DEVICE(lunaddrbytes)) | |
4138 | return false; | |
4139 | ||
4140 | device_flags = rle->device_flags; | |
4141 | device_type = rle->device_type; | |
4142 | ||
4143 | if (device_flags & RPL_DEV_FLAG_NON_DISK) { | |
4144 | if (device_type == BMIC_DEVICE_TYPE_ENCLOSURE) | |
4145 | return false; | |
4146 | return true; | |
4147 | } | |
4148 | ||
4149 | if (!(device_flags & RPL_DEV_FLAG_UNCONFIG_DISK_REPORTING_SUPPORTED)) | |
4150 | return false; | |
4151 | ||
4152 | if (device_flags & RPL_DEV_FLAG_UNCONFIG_DISK) | |
4153 | return false; | |
4154 | ||
4155 | /* | |
4156 | * Spares may be spun down, we do not want to | |
4157 | * do an Inquiry to a RAID set spare drive as | |
4158 | * that would have them spun up, that is a | |
4159 | * performance hit because I/O to the RAID device | |
4160 | * stops while the spin up occurs which can take | |
4161 | * over 50 seconds. | |
4162 | */ | |
4163 | if (hpsa_is_disk_spare(h, lunaddrbytes)) | |
4164 | return true; | |
4165 | ||
4166 | return false; | |
4167 | } | |
66749d0d | 4168 | |
8aa60681 | 4169 | static void hpsa_update_scsi_devices(struct ctlr_info *h) |
edd16368 SC |
4170 | { |
4171 | /* the idea here is we could get notified | |
4172 | * that some devices have changed, so we do a report | |
4173 | * physical luns and report logical luns cmd, and adjust | |
4174 | * our list of devices accordingly. | |
4175 | * | |
4176 | * The scsi3addr's of devices won't change so long as the | |
4177 | * adapter is not reset. That means we can rescan and | |
4178 | * tell which devices we already know about, vs. new | |
4179 | * devices, vs. disappearing devices. | |
4180 | */ | |
a93aa1fe | 4181 | struct ReportExtendedLUNdata *physdev_list = NULL; |
edd16368 | 4182 | struct ReportLUNdata *logdev_list = NULL; |
03383736 | 4183 | struct bmic_identify_physical_device *id_phys = NULL; |
66749d0d | 4184 | struct bmic_identify_controller *id_ctlr = NULL; |
01a02ffc SC |
4185 | u32 nphysicals = 0; |
4186 | u32 nlogicals = 0; | |
66749d0d | 4187 | u32 nlocal_logicals = 0; |
01a02ffc | 4188 | u32 ndev_allocated = 0; |
edd16368 SC |
4189 | struct hpsa_scsi_dev_t **currentsd, *this_device, *tmpdevice; |
4190 | int ncurrent = 0; | |
4f4eb9f1 | 4191 | int i, n_ext_target_devs, ndevs_to_allocate; |
339b2b14 | 4192 | int raid_ctlr_position; |
04fa2f44 | 4193 | bool physical_device; |
aca4a520 | 4194 | DECLARE_BITMAP(lunzerobits, MAX_EXT_TARGETS); |
edd16368 | 4195 | |
cfe5badc | 4196 | currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_DEVICES, GFP_KERNEL); |
92084715 SC |
4197 | physdev_list = kzalloc(sizeof(*physdev_list), GFP_KERNEL); |
4198 | logdev_list = kzalloc(sizeof(*logdev_list), GFP_KERNEL); | |
edd16368 | 4199 | tmpdevice = kzalloc(sizeof(*tmpdevice), GFP_KERNEL); |
03383736 | 4200 | id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL); |
66749d0d | 4201 | id_ctlr = kzalloc(sizeof(*id_ctlr), GFP_KERNEL); |
edd16368 | 4202 | |
03383736 | 4203 | if (!currentsd || !physdev_list || !logdev_list || |
66749d0d | 4204 | !tmpdevice || !id_phys || !id_ctlr) { |
edd16368 SC |
4205 | dev_err(&h->pdev->dev, "out of memory\n"); |
4206 | goto out; | |
4207 | } | |
4208 | memset(lunzerobits, 0, sizeof(lunzerobits)); | |
4209 | ||
853633e8 DB |
4210 | h->drv_req_rescan = 0; /* cancel scheduled rescan - we're doing it. */ |
4211 | ||
03383736 | 4212 | if (hpsa_gather_lun_info(h, physdev_list, &nphysicals, |
853633e8 DB |
4213 | logdev_list, &nlogicals)) { |
4214 | h->drv_req_rescan = 1; | |
edd16368 | 4215 | goto out; |
853633e8 | 4216 | } |
edd16368 | 4217 | |
66749d0d ST |
4218 | /* Set number of local logicals (non PTRAID) */ |
4219 | if (hpsa_set_local_logical_count(h, id_ctlr, &nlocal_logicals)) { | |
4220 | dev_warn(&h->pdev->dev, | |
4221 | "%s: Can't determine number of local logical devices.\n", | |
4222 | __func__); | |
4223 | } | |
edd16368 | 4224 | |
aca4a520 ST |
4225 | /* We might see up to the maximum number of logical and physical disks |
4226 | * plus external target devices, and a device for the local RAID | |
4227 | * controller. | |
edd16368 | 4228 | */ |
aca4a520 | 4229 | ndevs_to_allocate = nphysicals + nlogicals + MAX_EXT_TARGETS + 1; |
edd16368 SC |
4230 | |
4231 | /* Allocate the per device structures */ | |
4232 | for (i = 0; i < ndevs_to_allocate; i++) { | |
b7ec021f ST |
4233 | if (i >= HPSA_MAX_DEVICES) { |
4234 | dev_warn(&h->pdev->dev, "maximum devices (%d) exceeded." | |
4235 | " %d devices ignored.\n", HPSA_MAX_DEVICES, | |
4236 | ndevs_to_allocate - HPSA_MAX_DEVICES); | |
4237 | break; | |
4238 | } | |
4239 | ||
edd16368 SC |
4240 | currentsd[i] = kzalloc(sizeof(*currentsd[i]), GFP_KERNEL); |
4241 | if (!currentsd[i]) { | |
853633e8 | 4242 | h->drv_req_rescan = 1; |
edd16368 SC |
4243 | goto out; |
4244 | } | |
4245 | ndev_allocated++; | |
4246 | } | |
4247 | ||
8645291b | 4248 | if (is_scsi_rev_5(h)) |
339b2b14 SC |
4249 | raid_ctlr_position = 0; |
4250 | else | |
4251 | raid_ctlr_position = nphysicals + nlogicals; | |
4252 | ||
edd16368 | 4253 | /* adjust our table of devices */ |
4f4eb9f1 | 4254 | n_ext_target_devs = 0; |
edd16368 | 4255 | for (i = 0; i < nphysicals + nlogicals + 1; i++) { |
0b0e1d6c | 4256 | u8 *lunaddrbytes, is_OBDR = 0; |
683fc444 | 4257 | int rc = 0; |
f2039b03 | 4258 | int phys_dev_index = i - (raid_ctlr_position == 0); |
64ce60ca | 4259 | bool skip_device = false; |
edd16368 | 4260 | |
04fa2f44 | 4261 | physical_device = i < nphysicals + (raid_ctlr_position == 0); |
edd16368 SC |
4262 | |
4263 | /* Figure out where the LUN ID info is coming from */ | |
339b2b14 SC |
4264 | lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position, |
4265 | i, nphysicals, nlogicals, physdev_list, logdev_list); | |
41ce4c35 | 4266 | |
86cf7130 DB |
4267 | /* Determine if this is a lun from an external target array */ |
4268 | tmpdevice->external = | |
4269 | figure_external_status(h, raid_ctlr_position, i, | |
4270 | nphysicals, nlocal_logicals); | |
4271 | ||
64ce60ca DB |
4272 | /* |
4273 | * Skip over some devices such as a spare. | |
4274 | */ | |
4275 | if (!tmpdevice->external && physical_device) { | |
4276 | skip_device = hpsa_skip_device(h, lunaddrbytes, | |
4277 | &physdev_list->LUN[phys_dev_index]); | |
4278 | if (skip_device) | |
4279 | continue; | |
4280 | } | |
edd16368 SC |
4281 | |
4282 | /* Get device type, vendor, model, device id */ | |
683fc444 DB |
4283 | rc = hpsa_update_device_info(h, lunaddrbytes, tmpdevice, |
4284 | &is_OBDR); | |
4285 | if (rc == -ENOMEM) { | |
4286 | dev_warn(&h->pdev->dev, | |
4287 | "Out of memory, rescan deferred.\n"); | |
853633e8 | 4288 | h->drv_req_rescan = 1; |
683fc444 | 4289 | goto out; |
853633e8 | 4290 | } |
683fc444 | 4291 | if (rc) { |
85b29008 | 4292 | h->drv_req_rescan = 1; |
683fc444 DB |
4293 | continue; |
4294 | } | |
4295 | ||
1f310bde | 4296 | figure_bus_target_lun(h, lunaddrbytes, tmpdevice); |
edd16368 SC |
4297 | this_device = currentsd[ncurrent]; |
4298 | ||
34592254 ST |
4299 | /* Turn on discovery_polling if there are ext target devices. |
4300 | * Event-based change notification is unreliable for those. | |
edd16368 | 4301 | */ |
34592254 ST |
4302 | if (!h->discovery_polling) { |
4303 | if (tmpdevice->external) { | |
4304 | h->discovery_polling = 1; | |
4305 | dev_info(&h->pdev->dev, | |
4306 | "External target, activate discovery polling.\n"); | |
4307 | } | |
edd16368 SC |
4308 | } |
4309 | ||
34592254 | 4310 | |
edd16368 | 4311 | *this_device = *tmpdevice; |
04fa2f44 | 4312 | this_device->physical_device = physical_device; |
edd16368 | 4313 | |
04fa2f44 KB |
4314 | /* |
4315 | * Expose all devices except for physical devices that | |
4316 | * are masked. | |
4317 | */ | |
4318 | if (MASKED_DEVICE(lunaddrbytes) && this_device->physical_device) | |
2a168208 KB |
4319 | this_device->expose_device = 0; |
4320 | else | |
4321 | this_device->expose_device = 1; | |
41ce4c35 | 4322 | |
d04e62b9 KB |
4323 | |
4324 | /* | |
4325 | * Get the SAS address for physical devices that are exposed. | |
4326 | */ | |
4327 | if (this_device->physical_device && this_device->expose_device) | |
4328 | hpsa_get_sas_address(h, lunaddrbytes, this_device); | |
41ce4c35 | 4329 | |
edd16368 | 4330 | switch (this_device->devtype) { |
0b0e1d6c | 4331 | case TYPE_ROM: |
edd16368 SC |
4332 | /* We don't *really* support actual CD-ROM devices, |
4333 | * just "One Button Disaster Recovery" tape drive | |
4334 | * which temporarily pretends to be a CD-ROM drive. | |
4335 | * So we check that the device is really an OBDR tape | |
4336 | * device by checking for "$DR-10" in bytes 43-48 of | |
4337 | * the inquiry data. | |
4338 | */ | |
0b0e1d6c SC |
4339 | if (is_OBDR) |
4340 | ncurrent++; | |
edd16368 SC |
4341 | break; |
4342 | case TYPE_DISK: | |
af15ed36 | 4343 | case TYPE_ZBC: |
04fa2f44 | 4344 | if (this_device->physical_device) { |
b9092b79 KB |
4345 | /* The disk is in HBA mode. */ |
4346 | /* Never use RAID mapper in HBA mode. */ | |
ecf418d1 | 4347 | this_device->offload_enabled = 0; |
b9092b79 | 4348 | hpsa_get_ioaccel_drive_info(h, this_device, |
f2039b03 DB |
4349 | physdev_list, phys_dev_index, id_phys); |
4350 | hpsa_get_path_info(this_device, | |
4351 | physdev_list, phys_dev_index, id_phys); | |
b9092b79 | 4352 | } |
ecf418d1 | 4353 | ncurrent++; |
edd16368 SC |
4354 | break; |
4355 | case TYPE_TAPE: | |
4356 | case TYPE_MEDIUM_CHANGER: | |
cca8f13b DB |
4357 | ncurrent++; |
4358 | break; | |
41ce4c35 | 4359 | case TYPE_ENCLOSURE: |
17a9e54a DB |
4360 | if (!this_device->external) |
4361 | hpsa_get_enclosure_info(h, lunaddrbytes, | |
cca8f13b DB |
4362 | physdev_list, phys_dev_index, |
4363 | this_device); | |
b9092b79 | 4364 | ncurrent++; |
41ce4c35 | 4365 | break; |
edd16368 SC |
4366 | case TYPE_RAID: |
4367 | /* Only present the Smartarray HBA as a RAID controller. | |
4368 | * If it's a RAID controller other than the HBA itself | |
4369 | * (an external RAID controller, MSA500 or similar) | |
4370 | * don't present it. | |
4371 | */ | |
4372 | if (!is_hba_lunid(lunaddrbytes)) | |
4373 | break; | |
4374 | ncurrent++; | |
4375 | break; | |
4376 | default: | |
4377 | break; | |
4378 | } | |
cfe5badc | 4379 | if (ncurrent >= HPSA_MAX_DEVICES) |
edd16368 SC |
4380 | break; |
4381 | } | |
d04e62b9 KB |
4382 | |
4383 | if (h->sas_host == NULL) { | |
4384 | int rc = 0; | |
4385 | ||
4386 | rc = hpsa_add_sas_host(h); | |
4387 | if (rc) { | |
4388 | dev_warn(&h->pdev->dev, | |
4389 | "Could not add sas host %d\n", rc); | |
4390 | goto out; | |
4391 | } | |
4392 | } | |
4393 | ||
8aa60681 | 4394 | adjust_hpsa_scsi_table(h, currentsd, ncurrent); |
edd16368 SC |
4395 | out: |
4396 | kfree(tmpdevice); | |
4397 | for (i = 0; i < ndev_allocated; i++) | |
4398 | kfree(currentsd[i]); | |
4399 | kfree(currentsd); | |
edd16368 SC |
4400 | kfree(physdev_list); |
4401 | kfree(logdev_list); | |
66749d0d | 4402 | kfree(id_ctlr); |
03383736 | 4403 | kfree(id_phys); |
edd16368 SC |
4404 | } |
4405 | ||
ec5cbf04 WS |
4406 | static void hpsa_set_sg_descriptor(struct SGDescriptor *desc, |
4407 | struct scatterlist *sg) | |
4408 | { | |
4409 | u64 addr64 = (u64) sg_dma_address(sg); | |
4410 | unsigned int len = sg_dma_len(sg); | |
4411 | ||
4412 | desc->Addr = cpu_to_le64(addr64); | |
4413 | desc->Len = cpu_to_le32(len); | |
4414 | desc->Ext = 0; | |
4415 | } | |
4416 | ||
c7ee65b3 WS |
4417 | /* |
4418 | * hpsa_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci | |
edd16368 SC |
4419 | * dma mapping and fills in the scatter gather entries of the |
4420 | * hpsa command, cp. | |
4421 | */ | |
33a2ffce | 4422 | static int hpsa_scatter_gather(struct ctlr_info *h, |
edd16368 SC |
4423 | struct CommandList *cp, |
4424 | struct scsi_cmnd *cmd) | |
4425 | { | |
edd16368 | 4426 | struct scatterlist *sg; |
b3a7ba7c | 4427 | int use_sg, i, sg_limit, chained, last_sg; |
33a2ffce | 4428 | struct SGDescriptor *curr_sg; |
edd16368 | 4429 | |
33a2ffce | 4430 | BUG_ON(scsi_sg_count(cmd) > h->maxsgentries); |
edd16368 SC |
4431 | |
4432 | use_sg = scsi_dma_map(cmd); | |
4433 | if (use_sg < 0) | |
4434 | return use_sg; | |
4435 | ||
4436 | if (!use_sg) | |
4437 | goto sglist_finished; | |
4438 | ||
b3a7ba7c WS |
4439 | /* |
4440 | * If the number of entries is greater than the max for a single list, | |
4441 | * then we have a chained list; we will set up all but one entry in the | |
4442 | * first list (the last entry is saved for link information); | |
4443 | * otherwise, we don't have a chained list and we'll set up at each of | |
4444 | * the entries in the one list. | |
4445 | */ | |
33a2ffce | 4446 | curr_sg = cp->SG; |
b3a7ba7c WS |
4447 | chained = use_sg > h->max_cmd_sg_entries; |
4448 | sg_limit = chained ? h->max_cmd_sg_entries - 1 : use_sg; | |
4449 | last_sg = scsi_sg_count(cmd) - 1; | |
4450 | scsi_for_each_sg(cmd, sg, sg_limit, i) { | |
ec5cbf04 | 4451 | hpsa_set_sg_descriptor(curr_sg, sg); |
33a2ffce SC |
4452 | curr_sg++; |
4453 | } | |
ec5cbf04 | 4454 | |
b3a7ba7c WS |
4455 | if (chained) { |
4456 | /* | |
4457 | * Continue with the chained list. Set curr_sg to the chained | |
4458 | * list. Modify the limit to the total count less the entries | |
4459 | * we've already set up. Resume the scan at the list entry | |
4460 | * where the previous loop left off. | |
4461 | */ | |
4462 | curr_sg = h->cmd_sg_list[cp->cmdindex]; | |
4463 | sg_limit = use_sg - sg_limit; | |
4464 | for_each_sg(sg, sg, sg_limit, i) { | |
4465 | hpsa_set_sg_descriptor(curr_sg, sg); | |
4466 | curr_sg++; | |
4467 | } | |
4468 | } | |
4469 | ||
ec5cbf04 | 4470 | /* Back the pointer up to the last entry and mark it as "last". */ |
b3a7ba7c | 4471 | (curr_sg - 1)->Ext = cpu_to_le32(HPSA_SG_LAST); |
33a2ffce SC |
4472 | |
4473 | if (use_sg + chained > h->maxSG) | |
4474 | h->maxSG = use_sg + chained; | |
4475 | ||
4476 | if (chained) { | |
4477 | cp->Header.SGList = h->max_cmd_sg_entries; | |
50a0decf | 4478 | cp->Header.SGTotal = cpu_to_le16(use_sg + 1); |
e2bea6df SC |
4479 | if (hpsa_map_sg_chain_block(h, cp)) { |
4480 | scsi_dma_unmap(cmd); | |
4481 | return -1; | |
4482 | } | |
33a2ffce | 4483 | return 0; |
edd16368 SC |
4484 | } |
4485 | ||
4486 | sglist_finished: | |
4487 | ||
01a02ffc | 4488 | cp->Header.SGList = (u8) use_sg; /* no. SGs contig in this cmd */ |
c7ee65b3 | 4489 | cp->Header.SGTotal = cpu_to_le16(use_sg); /* total sgs in cmd list */ |
edd16368 SC |
4490 | return 0; |
4491 | } | |
4492 | ||
b63c64ac DB |
4493 | #define BUFLEN 128 |
4494 | static inline void warn_zero_length_transfer(struct ctlr_info *h, | |
4495 | u8 *cdb, int cdb_len, | |
4496 | const char *func) | |
4497 | { | |
4498 | char buf[BUFLEN]; | |
4499 | int outlen; | |
4500 | int i; | |
4501 | ||
4502 | outlen = scnprintf(buf, BUFLEN, | |
4503 | "%s: Blocking zero-length request: CDB:", func); | |
4504 | for (i = 0; i < cdb_len; i++) | |
4505 | outlen += scnprintf(buf+outlen, BUFLEN - outlen, | |
4506 | "%02hhx", cdb[i]); | |
4507 | dev_warn(&h->pdev->dev, "%s\n", buf); | |
4508 | } | |
4509 | ||
4510 | #define IO_ACCEL_INELIGIBLE 1 | |
4511 | /* zero-length transfers trigger hardware errors. */ | |
4512 | static bool is_zero_length_transfer(u8 *cdb) | |
4513 | { | |
4514 | u32 block_cnt; | |
4515 | ||
4516 | /* Block zero-length transfer sizes on certain commands. */ | |
4517 | switch (cdb[0]) { | |
4518 | case READ_10: | |
4519 | case WRITE_10: | |
4520 | case VERIFY: /* 0x2F */ | |
4521 | case WRITE_VERIFY: /* 0x2E */ | |
4522 | block_cnt = get_unaligned_be16(&cdb[7]); | |
4523 | break; | |
4524 | case READ_12: | |
4525 | case WRITE_12: | |
4526 | case VERIFY_12: /* 0xAF */ | |
4527 | case WRITE_VERIFY_12: /* 0xAE */ | |
4528 | block_cnt = get_unaligned_be32(&cdb[6]); | |
4529 | break; | |
4530 | case READ_16: | |
4531 | case WRITE_16: | |
4532 | case VERIFY_16: /* 0x8F */ | |
4533 | block_cnt = get_unaligned_be32(&cdb[10]); | |
4534 | break; | |
4535 | default: | |
4536 | return false; | |
4537 | } | |
4538 | ||
4539 | return block_cnt == 0; | |
4540 | } | |
4541 | ||
283b4a9b SC |
4542 | static int fixup_ioaccel_cdb(u8 *cdb, int *cdb_len) |
4543 | { | |
4544 | int is_write = 0; | |
4545 | u32 block; | |
4546 | u32 block_cnt; | |
4547 | ||
4548 | /* Perform some CDB fixups if needed using 10 byte reads/writes only */ | |
4549 | switch (cdb[0]) { | |
4550 | case WRITE_6: | |
4551 | case WRITE_12: | |
4552 | is_write = 1; | |
4553 | case READ_6: | |
4554 | case READ_12: | |
4555 | if (*cdb_len == 6) { | |
abbada71 MR |
4556 | block = (((cdb[1] & 0x1F) << 16) | |
4557 | (cdb[2] << 8) | | |
4558 | cdb[3]); | |
283b4a9b | 4559 | block_cnt = cdb[4]; |
c8a6c9a6 DB |
4560 | if (block_cnt == 0) |
4561 | block_cnt = 256; | |
283b4a9b SC |
4562 | } else { |
4563 | BUG_ON(*cdb_len != 12); | |
c8a6c9a6 DB |
4564 | block = get_unaligned_be32(&cdb[2]); |
4565 | block_cnt = get_unaligned_be32(&cdb[6]); | |
283b4a9b SC |
4566 | } |
4567 | if (block_cnt > 0xffff) | |
4568 | return IO_ACCEL_INELIGIBLE; | |
4569 | ||
4570 | cdb[0] = is_write ? WRITE_10 : READ_10; | |
4571 | cdb[1] = 0; | |
4572 | cdb[2] = (u8) (block >> 24); | |
4573 | cdb[3] = (u8) (block >> 16); | |
4574 | cdb[4] = (u8) (block >> 8); | |
4575 | cdb[5] = (u8) (block); | |
4576 | cdb[6] = 0; | |
4577 | cdb[7] = (u8) (block_cnt >> 8); | |
4578 | cdb[8] = (u8) (block_cnt); | |
4579 | cdb[9] = 0; | |
4580 | *cdb_len = 10; | |
4581 | break; | |
4582 | } | |
4583 | return 0; | |
4584 | } | |
4585 | ||
c349775e | 4586 | static int hpsa_scsi_ioaccel1_queue_command(struct ctlr_info *h, |
283b4a9b | 4587 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, |
03383736 | 4588 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk) |
e1f7de0c MG |
4589 | { |
4590 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
e1f7de0c MG |
4591 | struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex]; |
4592 | unsigned int len; | |
4593 | unsigned int total_len = 0; | |
4594 | struct scatterlist *sg; | |
4595 | u64 addr64; | |
4596 | int use_sg, i; | |
4597 | struct SGDescriptor *curr_sg; | |
4598 | u32 control = IOACCEL1_CONTROL_SIMPLEQUEUE; | |
4599 | ||
283b4a9b | 4600 | /* TODO: implement chaining support */ |
03383736 DB |
4601 | if (scsi_sg_count(cmd) > h->ioaccel_maxsg) { |
4602 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
283b4a9b | 4603 | return IO_ACCEL_INELIGIBLE; |
03383736 | 4604 | } |
283b4a9b | 4605 | |
e1f7de0c MG |
4606 | BUG_ON(cmd->cmd_len > IOACCEL1_IOFLAGS_CDBLEN_MAX); |
4607 | ||
b63c64ac DB |
4608 | if (is_zero_length_transfer(cdb)) { |
4609 | warn_zero_length_transfer(h, cdb, cdb_len, __func__); | |
4610 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
4611 | return IO_ACCEL_INELIGIBLE; | |
4612 | } | |
4613 | ||
03383736 DB |
4614 | if (fixup_ioaccel_cdb(cdb, &cdb_len)) { |
4615 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
283b4a9b | 4616 | return IO_ACCEL_INELIGIBLE; |
03383736 | 4617 | } |
283b4a9b | 4618 | |
e1f7de0c MG |
4619 | c->cmd_type = CMD_IOACCEL1; |
4620 | ||
4621 | /* Adjust the DMA address to point to the accelerated command buffer */ | |
4622 | c->busaddr = (u32) h->ioaccel_cmd_pool_dhandle + | |
4623 | (c->cmdindex * sizeof(*cp)); | |
4624 | BUG_ON(c->busaddr & 0x0000007F); | |
4625 | ||
4626 | use_sg = scsi_dma_map(cmd); | |
03383736 DB |
4627 | if (use_sg < 0) { |
4628 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
e1f7de0c | 4629 | return use_sg; |
03383736 | 4630 | } |
e1f7de0c MG |
4631 | |
4632 | if (use_sg) { | |
4633 | curr_sg = cp->SG; | |
4634 | scsi_for_each_sg(cmd, sg, use_sg, i) { | |
4635 | addr64 = (u64) sg_dma_address(sg); | |
4636 | len = sg_dma_len(sg); | |
4637 | total_len += len; | |
50a0decf SC |
4638 | curr_sg->Addr = cpu_to_le64(addr64); |
4639 | curr_sg->Len = cpu_to_le32(len); | |
4640 | curr_sg->Ext = cpu_to_le32(0); | |
e1f7de0c MG |
4641 | curr_sg++; |
4642 | } | |
50a0decf | 4643 | (--curr_sg)->Ext = cpu_to_le32(HPSA_SG_LAST); |
e1f7de0c MG |
4644 | |
4645 | switch (cmd->sc_data_direction) { | |
4646 | case DMA_TO_DEVICE: | |
4647 | control |= IOACCEL1_CONTROL_DATA_OUT; | |
4648 | break; | |
4649 | case DMA_FROM_DEVICE: | |
4650 | control |= IOACCEL1_CONTROL_DATA_IN; | |
4651 | break; | |
4652 | case DMA_NONE: | |
4653 | control |= IOACCEL1_CONTROL_NODATAXFER; | |
4654 | break; | |
4655 | default: | |
4656 | dev_err(&h->pdev->dev, "unknown data direction: %d\n", | |
4657 | cmd->sc_data_direction); | |
4658 | BUG(); | |
4659 | break; | |
4660 | } | |
4661 | } else { | |
4662 | control |= IOACCEL1_CONTROL_NODATAXFER; | |
4663 | } | |
4664 | ||
c349775e | 4665 | c->Header.SGList = use_sg; |
e1f7de0c | 4666 | /* Fill out the command structure to submit */ |
2b08b3e9 DB |
4667 | cp->dev_handle = cpu_to_le16(ioaccel_handle & 0xFFFF); |
4668 | cp->transfer_len = cpu_to_le32(total_len); | |
4669 | cp->io_flags = cpu_to_le16(IOACCEL1_IOFLAGS_IO_REQ | | |
4670 | (cdb_len & IOACCEL1_IOFLAGS_CDBLEN_MASK)); | |
4671 | cp->control = cpu_to_le32(control); | |
283b4a9b SC |
4672 | memcpy(cp->CDB, cdb, cdb_len); |
4673 | memcpy(cp->CISS_LUN, scsi3addr, 8); | |
c349775e | 4674 | /* Tag was already set at init time. */ |
283b4a9b | 4675 | enqueue_cmd_and_start_io(h, c); |
e1f7de0c MG |
4676 | return 0; |
4677 | } | |
edd16368 | 4678 | |
283b4a9b SC |
4679 | /* |
4680 | * Queue a command directly to a device behind the controller using the | |
4681 | * I/O accelerator path. | |
4682 | */ | |
4683 | static int hpsa_scsi_ioaccel_direct_map(struct ctlr_info *h, | |
4684 | struct CommandList *c) | |
4685 | { | |
4686 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4687 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4688 | ||
45e596cd DB |
4689 | if (!dev) |
4690 | return -1; | |
4691 | ||
03383736 DB |
4692 | c->phys_disk = dev; |
4693 | ||
283b4a9b | 4694 | return hpsa_scsi_ioaccel_queue_command(h, c, dev->ioaccel_handle, |
03383736 | 4695 | cmd->cmnd, cmd->cmd_len, dev->scsi3addr, dev); |
283b4a9b SC |
4696 | } |
4697 | ||
dd0e19f3 ST |
4698 | /* |
4699 | * Set encryption parameters for the ioaccel2 request | |
4700 | */ | |
4701 | static void set_encrypt_ioaccel2(struct ctlr_info *h, | |
4702 | struct CommandList *c, struct io_accel2_cmd *cp) | |
4703 | { | |
4704 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4705 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4706 | struct raid_map_data *map = &dev->raid_map; | |
4707 | u64 first_block; | |
4708 | ||
dd0e19f3 | 4709 | /* Are we doing encryption on this device */ |
2b08b3e9 | 4710 | if (!(le16_to_cpu(map->flags) & RAID_MAP_FLAG_ENCRYPT_ON)) |
dd0e19f3 ST |
4711 | return; |
4712 | /* Set the data encryption key index. */ | |
4713 | cp->dekindex = map->dekindex; | |
4714 | ||
4715 | /* Set the encryption enable flag, encoded into direction field. */ | |
4716 | cp->direction |= IOACCEL2_DIRECTION_ENCRYPT_MASK; | |
4717 | ||
4718 | /* Set encryption tweak values based on logical block address | |
4719 | * If block size is 512, tweak value is LBA. | |
4720 | * For other block sizes, tweak is (LBA * block size)/ 512) | |
4721 | */ | |
4722 | switch (cmd->cmnd[0]) { | |
4723 | /* Required? 6-byte cdbs eliminated by fixup_ioaccel_cdb */ | |
dd0e19f3 | 4724 | case READ_6: |
abbada71 MR |
4725 | case WRITE_6: |
4726 | first_block = (((cmd->cmnd[1] & 0x1F) << 16) | | |
4727 | (cmd->cmnd[2] << 8) | | |
4728 | cmd->cmnd[3]); | |
dd0e19f3 ST |
4729 | break; |
4730 | case WRITE_10: | |
4731 | case READ_10: | |
dd0e19f3 ST |
4732 | /* Required? 12-byte cdbs eliminated by fixup_ioaccel_cdb */ |
4733 | case WRITE_12: | |
4734 | case READ_12: | |
2b08b3e9 | 4735 | first_block = get_unaligned_be32(&cmd->cmnd[2]); |
dd0e19f3 ST |
4736 | break; |
4737 | case WRITE_16: | |
4738 | case READ_16: | |
2b08b3e9 | 4739 | first_block = get_unaligned_be64(&cmd->cmnd[2]); |
dd0e19f3 ST |
4740 | break; |
4741 | default: | |
4742 | dev_err(&h->pdev->dev, | |
2b08b3e9 DB |
4743 | "ERROR: %s: size (0x%x) not supported for encryption\n", |
4744 | __func__, cmd->cmnd[0]); | |
dd0e19f3 ST |
4745 | BUG(); |
4746 | break; | |
4747 | } | |
2b08b3e9 DB |
4748 | |
4749 | if (le32_to_cpu(map->volume_blk_size) != 512) | |
4750 | first_block = first_block * | |
4751 | le32_to_cpu(map->volume_blk_size)/512; | |
4752 | ||
4753 | cp->tweak_lower = cpu_to_le32(first_block); | |
4754 | cp->tweak_upper = cpu_to_le32(first_block >> 32); | |
dd0e19f3 ST |
4755 | } |
4756 | ||
c349775e ST |
4757 | static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h, |
4758 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, | |
03383736 | 4759 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk) |
c349775e ST |
4760 | { |
4761 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4762 | struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
4763 | struct ioaccel2_sg_element *curr_sg; | |
4764 | int use_sg, i; | |
4765 | struct scatterlist *sg; | |
4766 | u64 addr64; | |
4767 | u32 len; | |
4768 | u32 total_len = 0; | |
4769 | ||
45e596cd DB |
4770 | if (!cmd->device) |
4771 | return -1; | |
4772 | ||
4773 | if (!cmd->device->hostdata) | |
4774 | return -1; | |
4775 | ||
d9a729f3 | 4776 | BUG_ON(scsi_sg_count(cmd) > h->maxsgentries); |
c349775e | 4777 | |
b63c64ac DB |
4778 | if (is_zero_length_transfer(cdb)) { |
4779 | warn_zero_length_transfer(h, cdb, cdb_len, __func__); | |
4780 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
4781 | return IO_ACCEL_INELIGIBLE; | |
4782 | } | |
4783 | ||
03383736 DB |
4784 | if (fixup_ioaccel_cdb(cdb, &cdb_len)) { |
4785 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
c349775e | 4786 | return IO_ACCEL_INELIGIBLE; |
03383736 DB |
4787 | } |
4788 | ||
c349775e ST |
4789 | c->cmd_type = CMD_IOACCEL2; |
4790 | /* Adjust the DMA address to point to the accelerated command buffer */ | |
4791 | c->busaddr = (u32) h->ioaccel2_cmd_pool_dhandle + | |
4792 | (c->cmdindex * sizeof(*cp)); | |
4793 | BUG_ON(c->busaddr & 0x0000007F); | |
4794 | ||
4795 | memset(cp, 0, sizeof(*cp)); | |
4796 | cp->IU_type = IOACCEL2_IU_TYPE; | |
4797 | ||
4798 | use_sg = scsi_dma_map(cmd); | |
03383736 DB |
4799 | if (use_sg < 0) { |
4800 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
c349775e | 4801 | return use_sg; |
03383736 | 4802 | } |
c349775e ST |
4803 | |
4804 | if (use_sg) { | |
c349775e | 4805 | curr_sg = cp->sg; |
d9a729f3 WS |
4806 | if (use_sg > h->ioaccel_maxsg) { |
4807 | addr64 = le64_to_cpu( | |
4808 | h->ioaccel2_cmd_sg_list[c->cmdindex]->address); | |
4809 | curr_sg->address = cpu_to_le64(addr64); | |
4810 | curr_sg->length = 0; | |
4811 | curr_sg->reserved[0] = 0; | |
4812 | curr_sg->reserved[1] = 0; | |
4813 | curr_sg->reserved[2] = 0; | |
4814 | curr_sg->chain_indicator = 0x80; | |
4815 | ||
4816 | curr_sg = h->ioaccel2_cmd_sg_list[c->cmdindex]; | |
4817 | } | |
c349775e ST |
4818 | scsi_for_each_sg(cmd, sg, use_sg, i) { |
4819 | addr64 = (u64) sg_dma_address(sg); | |
4820 | len = sg_dma_len(sg); | |
4821 | total_len += len; | |
4822 | curr_sg->address = cpu_to_le64(addr64); | |
4823 | curr_sg->length = cpu_to_le32(len); | |
4824 | curr_sg->reserved[0] = 0; | |
4825 | curr_sg->reserved[1] = 0; | |
4826 | curr_sg->reserved[2] = 0; | |
4827 | curr_sg->chain_indicator = 0; | |
4828 | curr_sg++; | |
4829 | } | |
4830 | ||
4831 | switch (cmd->sc_data_direction) { | |
4832 | case DMA_TO_DEVICE: | |
dd0e19f3 ST |
4833 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4834 | cp->direction |= IOACCEL2_DIR_DATA_OUT; | |
c349775e ST |
4835 | break; |
4836 | case DMA_FROM_DEVICE: | |
dd0e19f3 ST |
4837 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4838 | cp->direction |= IOACCEL2_DIR_DATA_IN; | |
c349775e ST |
4839 | break; |
4840 | case DMA_NONE: | |
dd0e19f3 ST |
4841 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4842 | cp->direction |= IOACCEL2_DIR_NO_DATA; | |
c349775e ST |
4843 | break; |
4844 | default: | |
4845 | dev_err(&h->pdev->dev, "unknown data direction: %d\n", | |
4846 | cmd->sc_data_direction); | |
4847 | BUG(); | |
4848 | break; | |
4849 | } | |
4850 | } else { | |
dd0e19f3 ST |
4851 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4852 | cp->direction |= IOACCEL2_DIR_NO_DATA; | |
c349775e | 4853 | } |
dd0e19f3 ST |
4854 | |
4855 | /* Set encryption parameters, if necessary */ | |
4856 | set_encrypt_ioaccel2(h, c, cp); | |
4857 | ||
2b08b3e9 | 4858 | cp->scsi_nexus = cpu_to_le32(ioaccel_handle); |
f2405db8 | 4859 | cp->Tag = cpu_to_le32(c->cmdindex << DIRECT_LOOKUP_SHIFT); |
c349775e | 4860 | memcpy(cp->cdb, cdb, sizeof(cp->cdb)); |
c349775e | 4861 | |
c349775e ST |
4862 | cp->data_len = cpu_to_le32(total_len); |
4863 | cp->err_ptr = cpu_to_le64(c->busaddr + | |
4864 | offsetof(struct io_accel2_cmd, error_data)); | |
50a0decf | 4865 | cp->err_len = cpu_to_le32(sizeof(cp->error_data)); |
c349775e | 4866 | |
d9a729f3 WS |
4867 | /* fill in sg elements */ |
4868 | if (use_sg > h->ioaccel_maxsg) { | |
4869 | cp->sg_count = 1; | |
a736e9b6 | 4870 | cp->sg[0].length = cpu_to_le32(use_sg * sizeof(cp->sg[0])); |
d9a729f3 WS |
4871 | if (hpsa_map_ioaccel2_sg_chain_block(h, cp, c)) { |
4872 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
4873 | scsi_dma_unmap(cmd); | |
4874 | return -1; | |
4875 | } | |
4876 | } else | |
4877 | cp->sg_count = (u8) use_sg; | |
4878 | ||
c349775e ST |
4879 | enqueue_cmd_and_start_io(h, c); |
4880 | return 0; | |
4881 | } | |
4882 | ||
4883 | /* | |
4884 | * Queue a command to the correct I/O accelerator path. | |
4885 | */ | |
4886 | static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h, | |
4887 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, | |
03383736 | 4888 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk) |
c349775e | 4889 | { |
45e596cd DB |
4890 | if (!c->scsi_cmd->device) |
4891 | return -1; | |
4892 | ||
4893 | if (!c->scsi_cmd->device->hostdata) | |
4894 | return -1; | |
4895 | ||
03383736 DB |
4896 | /* Try to honor the device's queue depth */ |
4897 | if (atomic_inc_return(&phys_disk->ioaccel_cmds_out) > | |
4898 | phys_disk->queue_depth) { | |
4899 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
4900 | return IO_ACCEL_INELIGIBLE; | |
4901 | } | |
c349775e ST |
4902 | if (h->transMethod & CFGTBL_Trans_io_accel1) |
4903 | return hpsa_scsi_ioaccel1_queue_command(h, c, ioaccel_handle, | |
03383736 DB |
4904 | cdb, cdb_len, scsi3addr, |
4905 | phys_disk); | |
c349775e ST |
4906 | else |
4907 | return hpsa_scsi_ioaccel2_queue_command(h, c, ioaccel_handle, | |
03383736 DB |
4908 | cdb, cdb_len, scsi3addr, |
4909 | phys_disk); | |
c349775e ST |
4910 | } |
4911 | ||
6b80b18f ST |
4912 | static void raid_map_helper(struct raid_map_data *map, |
4913 | int offload_to_mirror, u32 *map_index, u32 *current_group) | |
4914 | { | |
4915 | if (offload_to_mirror == 0) { | |
4916 | /* use physical disk in the first mirrored group. */ | |
2b08b3e9 | 4917 | *map_index %= le16_to_cpu(map->data_disks_per_row); |
6b80b18f ST |
4918 | return; |
4919 | } | |
4920 | do { | |
4921 | /* determine mirror group that *map_index indicates */ | |
2b08b3e9 DB |
4922 | *current_group = *map_index / |
4923 | le16_to_cpu(map->data_disks_per_row); | |
6b80b18f ST |
4924 | if (offload_to_mirror == *current_group) |
4925 | continue; | |
2b08b3e9 | 4926 | if (*current_group < le16_to_cpu(map->layout_map_count) - 1) { |
6b80b18f | 4927 | /* select map index from next group */ |
2b08b3e9 | 4928 | *map_index += le16_to_cpu(map->data_disks_per_row); |
6b80b18f ST |
4929 | (*current_group)++; |
4930 | } else { | |
4931 | /* select map index from first group */ | |
2b08b3e9 | 4932 | *map_index %= le16_to_cpu(map->data_disks_per_row); |
6b80b18f ST |
4933 | *current_group = 0; |
4934 | } | |
4935 | } while (offload_to_mirror != *current_group); | |
4936 | } | |
4937 | ||
283b4a9b SC |
4938 | /* |
4939 | * Attempt to perform offload RAID mapping for a logical volume I/O. | |
4940 | */ | |
4941 | static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h, | |
4942 | struct CommandList *c) | |
4943 | { | |
4944 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4945 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4946 | struct raid_map_data *map = &dev->raid_map; | |
4947 | struct raid_map_disk_data *dd = &map->data[0]; | |
4948 | int is_write = 0; | |
4949 | u32 map_index; | |
4950 | u64 first_block, last_block; | |
4951 | u32 block_cnt; | |
4952 | u32 blocks_per_row; | |
4953 | u64 first_row, last_row; | |
4954 | u32 first_row_offset, last_row_offset; | |
4955 | u32 first_column, last_column; | |
6b80b18f ST |
4956 | u64 r0_first_row, r0_last_row; |
4957 | u32 r5or6_blocks_per_row; | |
4958 | u64 r5or6_first_row, r5or6_last_row; | |
4959 | u32 r5or6_first_row_offset, r5or6_last_row_offset; | |
4960 | u32 r5or6_first_column, r5or6_last_column; | |
4961 | u32 total_disks_per_row; | |
4962 | u32 stripesize; | |
4963 | u32 first_group, last_group, current_group; | |
283b4a9b SC |
4964 | u32 map_row; |
4965 | u32 disk_handle; | |
4966 | u64 disk_block; | |
4967 | u32 disk_block_cnt; | |
4968 | u8 cdb[16]; | |
4969 | u8 cdb_len; | |
2b08b3e9 | 4970 | u16 strip_size; |
283b4a9b SC |
4971 | #if BITS_PER_LONG == 32 |
4972 | u64 tmpdiv; | |
4973 | #endif | |
6b80b18f | 4974 | int offload_to_mirror; |
283b4a9b | 4975 | |
45e596cd DB |
4976 | if (!dev) |
4977 | return -1; | |
4978 | ||
283b4a9b SC |
4979 | /* check for valid opcode, get LBA and block count */ |
4980 | switch (cmd->cmnd[0]) { | |
4981 | case WRITE_6: | |
4982 | is_write = 1; | |
4983 | case READ_6: | |
abbada71 MR |
4984 | first_block = (((cmd->cmnd[1] & 0x1F) << 16) | |
4985 | (cmd->cmnd[2] << 8) | | |
4986 | cmd->cmnd[3]); | |
283b4a9b | 4987 | block_cnt = cmd->cmnd[4]; |
3fa89a04 SC |
4988 | if (block_cnt == 0) |
4989 | block_cnt = 256; | |
283b4a9b SC |
4990 | break; |
4991 | case WRITE_10: | |
4992 | is_write = 1; | |
4993 | case READ_10: | |
4994 | first_block = | |
4995 | (((u64) cmd->cmnd[2]) << 24) | | |
4996 | (((u64) cmd->cmnd[3]) << 16) | | |
4997 | (((u64) cmd->cmnd[4]) << 8) | | |
4998 | cmd->cmnd[5]; | |
4999 | block_cnt = | |
5000 | (((u32) cmd->cmnd[7]) << 8) | | |
5001 | cmd->cmnd[8]; | |
5002 | break; | |
5003 | case WRITE_12: | |
5004 | is_write = 1; | |
5005 | case READ_12: | |
5006 | first_block = | |
5007 | (((u64) cmd->cmnd[2]) << 24) | | |
5008 | (((u64) cmd->cmnd[3]) << 16) | | |
5009 | (((u64) cmd->cmnd[4]) << 8) | | |
5010 | cmd->cmnd[5]; | |
5011 | block_cnt = | |
5012 | (((u32) cmd->cmnd[6]) << 24) | | |
5013 | (((u32) cmd->cmnd[7]) << 16) | | |
5014 | (((u32) cmd->cmnd[8]) << 8) | | |
5015 | cmd->cmnd[9]; | |
5016 | break; | |
5017 | case WRITE_16: | |
5018 | is_write = 1; | |
5019 | case READ_16: | |
5020 | first_block = | |
5021 | (((u64) cmd->cmnd[2]) << 56) | | |
5022 | (((u64) cmd->cmnd[3]) << 48) | | |
5023 | (((u64) cmd->cmnd[4]) << 40) | | |
5024 | (((u64) cmd->cmnd[5]) << 32) | | |
5025 | (((u64) cmd->cmnd[6]) << 24) | | |
5026 | (((u64) cmd->cmnd[7]) << 16) | | |
5027 | (((u64) cmd->cmnd[8]) << 8) | | |
5028 | cmd->cmnd[9]; | |
5029 | block_cnt = | |
5030 | (((u32) cmd->cmnd[10]) << 24) | | |
5031 | (((u32) cmd->cmnd[11]) << 16) | | |
5032 | (((u32) cmd->cmnd[12]) << 8) | | |
5033 | cmd->cmnd[13]; | |
5034 | break; | |
5035 | default: | |
5036 | return IO_ACCEL_INELIGIBLE; /* process via normal I/O path */ | |
5037 | } | |
283b4a9b SC |
5038 | last_block = first_block + block_cnt - 1; |
5039 | ||
5040 | /* check for write to non-RAID-0 */ | |
5041 | if (is_write && dev->raid_level != 0) | |
5042 | return IO_ACCEL_INELIGIBLE; | |
5043 | ||
5044 | /* check for invalid block or wraparound */ | |
2b08b3e9 DB |
5045 | if (last_block >= le64_to_cpu(map->volume_blk_cnt) || |
5046 | last_block < first_block) | |
283b4a9b SC |
5047 | return IO_ACCEL_INELIGIBLE; |
5048 | ||
5049 | /* calculate stripe information for the request */ | |
2b08b3e9 DB |
5050 | blocks_per_row = le16_to_cpu(map->data_disks_per_row) * |
5051 | le16_to_cpu(map->strip_size); | |
5052 | strip_size = le16_to_cpu(map->strip_size); | |
283b4a9b SC |
5053 | #if BITS_PER_LONG == 32 |
5054 | tmpdiv = first_block; | |
5055 | (void) do_div(tmpdiv, blocks_per_row); | |
5056 | first_row = tmpdiv; | |
5057 | tmpdiv = last_block; | |
5058 | (void) do_div(tmpdiv, blocks_per_row); | |
5059 | last_row = tmpdiv; | |
5060 | first_row_offset = (u32) (first_block - (first_row * blocks_per_row)); | |
5061 | last_row_offset = (u32) (last_block - (last_row * blocks_per_row)); | |
5062 | tmpdiv = first_row_offset; | |
2b08b3e9 | 5063 | (void) do_div(tmpdiv, strip_size); |
283b4a9b SC |
5064 | first_column = tmpdiv; |
5065 | tmpdiv = last_row_offset; | |
2b08b3e9 | 5066 | (void) do_div(tmpdiv, strip_size); |
283b4a9b SC |
5067 | last_column = tmpdiv; |
5068 | #else | |
5069 | first_row = first_block / blocks_per_row; | |
5070 | last_row = last_block / blocks_per_row; | |
5071 | first_row_offset = (u32) (first_block - (first_row * blocks_per_row)); | |
5072 | last_row_offset = (u32) (last_block - (last_row * blocks_per_row)); | |
2b08b3e9 DB |
5073 | first_column = first_row_offset / strip_size; |
5074 | last_column = last_row_offset / strip_size; | |
283b4a9b SC |
5075 | #endif |
5076 | ||
5077 | /* if this isn't a single row/column then give to the controller */ | |
5078 | if ((first_row != last_row) || (first_column != last_column)) | |
5079 | return IO_ACCEL_INELIGIBLE; | |
5080 | ||
5081 | /* proceeding with driver mapping */ | |
2b08b3e9 DB |
5082 | total_disks_per_row = le16_to_cpu(map->data_disks_per_row) + |
5083 | le16_to_cpu(map->metadata_disks_per_row); | |
283b4a9b | 5084 | map_row = ((u32)(first_row >> map->parity_rotation_shift)) % |
2b08b3e9 | 5085 | le16_to_cpu(map->row_cnt); |
6b80b18f ST |
5086 | map_index = (map_row * total_disks_per_row) + first_column; |
5087 | ||
5088 | switch (dev->raid_level) { | |
5089 | case HPSA_RAID_0: | |
5090 | break; /* nothing special to do */ | |
5091 | case HPSA_RAID_1: | |
5092 | /* Handles load balance across RAID 1 members. | |
5093 | * (2-drive R1 and R10 with even # of drives.) | |
5094 | * Appropriate for SSDs, not optimal for HDDs | |
283b4a9b | 5095 | */ |
2b08b3e9 | 5096 | BUG_ON(le16_to_cpu(map->layout_map_count) != 2); |
283b4a9b | 5097 | if (dev->offload_to_mirror) |
2b08b3e9 | 5098 | map_index += le16_to_cpu(map->data_disks_per_row); |
283b4a9b | 5099 | dev->offload_to_mirror = !dev->offload_to_mirror; |
6b80b18f ST |
5100 | break; |
5101 | case HPSA_RAID_ADM: | |
5102 | /* Handles N-way mirrors (R1-ADM) | |
5103 | * and R10 with # of drives divisible by 3.) | |
5104 | */ | |
2b08b3e9 | 5105 | BUG_ON(le16_to_cpu(map->layout_map_count) != 3); |
6b80b18f ST |
5106 | |
5107 | offload_to_mirror = dev->offload_to_mirror; | |
5108 | raid_map_helper(map, offload_to_mirror, | |
5109 | &map_index, ¤t_group); | |
5110 | /* set mirror group to use next time */ | |
5111 | offload_to_mirror = | |
2b08b3e9 DB |
5112 | (offload_to_mirror >= |
5113 | le16_to_cpu(map->layout_map_count) - 1) | |
6b80b18f | 5114 | ? 0 : offload_to_mirror + 1; |
6b80b18f ST |
5115 | dev->offload_to_mirror = offload_to_mirror; |
5116 | /* Avoid direct use of dev->offload_to_mirror within this | |
5117 | * function since multiple threads might simultaneously | |
5118 | * increment it beyond the range of dev->layout_map_count -1. | |
5119 | */ | |
5120 | break; | |
5121 | case HPSA_RAID_5: | |
5122 | case HPSA_RAID_6: | |
2b08b3e9 | 5123 | if (le16_to_cpu(map->layout_map_count) <= 1) |
6b80b18f ST |
5124 | break; |
5125 | ||
5126 | /* Verify first and last block are in same RAID group */ | |
5127 | r5or6_blocks_per_row = | |
2b08b3e9 DB |
5128 | le16_to_cpu(map->strip_size) * |
5129 | le16_to_cpu(map->data_disks_per_row); | |
6b80b18f | 5130 | BUG_ON(r5or6_blocks_per_row == 0); |
2b08b3e9 DB |
5131 | stripesize = r5or6_blocks_per_row * |
5132 | le16_to_cpu(map->layout_map_count); | |
6b80b18f ST |
5133 | #if BITS_PER_LONG == 32 |
5134 | tmpdiv = first_block; | |
5135 | first_group = do_div(tmpdiv, stripesize); | |
5136 | tmpdiv = first_group; | |
5137 | (void) do_div(tmpdiv, r5or6_blocks_per_row); | |
5138 | first_group = tmpdiv; | |
5139 | tmpdiv = last_block; | |
5140 | last_group = do_div(tmpdiv, stripesize); | |
5141 | tmpdiv = last_group; | |
5142 | (void) do_div(tmpdiv, r5or6_blocks_per_row); | |
5143 | last_group = tmpdiv; | |
5144 | #else | |
5145 | first_group = (first_block % stripesize) / r5or6_blocks_per_row; | |
5146 | last_group = (last_block % stripesize) / r5or6_blocks_per_row; | |
6b80b18f | 5147 | #endif |
000ff7c2 | 5148 | if (first_group != last_group) |
6b80b18f ST |
5149 | return IO_ACCEL_INELIGIBLE; |
5150 | ||
5151 | /* Verify request is in a single row of RAID 5/6 */ | |
5152 | #if BITS_PER_LONG == 32 | |
5153 | tmpdiv = first_block; | |
5154 | (void) do_div(tmpdiv, stripesize); | |
5155 | first_row = r5or6_first_row = r0_first_row = tmpdiv; | |
5156 | tmpdiv = last_block; | |
5157 | (void) do_div(tmpdiv, stripesize); | |
5158 | r5or6_last_row = r0_last_row = tmpdiv; | |
5159 | #else | |
5160 | first_row = r5or6_first_row = r0_first_row = | |
5161 | first_block / stripesize; | |
5162 | r5or6_last_row = r0_last_row = last_block / stripesize; | |
5163 | #endif | |
5164 | if (r5or6_first_row != r5or6_last_row) | |
5165 | return IO_ACCEL_INELIGIBLE; | |
5166 | ||
5167 | ||
5168 | /* Verify request is in a single column */ | |
5169 | #if BITS_PER_LONG == 32 | |
5170 | tmpdiv = first_block; | |
5171 | first_row_offset = do_div(tmpdiv, stripesize); | |
5172 | tmpdiv = first_row_offset; | |
5173 | first_row_offset = (u32) do_div(tmpdiv, r5or6_blocks_per_row); | |
5174 | r5or6_first_row_offset = first_row_offset; | |
5175 | tmpdiv = last_block; | |
5176 | r5or6_last_row_offset = do_div(tmpdiv, stripesize); | |
5177 | tmpdiv = r5or6_last_row_offset; | |
5178 | r5or6_last_row_offset = do_div(tmpdiv, r5or6_blocks_per_row); | |
5179 | tmpdiv = r5or6_first_row_offset; | |
5180 | (void) do_div(tmpdiv, map->strip_size); | |
5181 | first_column = r5or6_first_column = tmpdiv; | |
5182 | tmpdiv = r5or6_last_row_offset; | |
5183 | (void) do_div(tmpdiv, map->strip_size); | |
5184 | r5or6_last_column = tmpdiv; | |
5185 | #else | |
5186 | first_row_offset = r5or6_first_row_offset = | |
5187 | (u32)((first_block % stripesize) % | |
5188 | r5or6_blocks_per_row); | |
5189 | ||
5190 | r5or6_last_row_offset = | |
5191 | (u32)((last_block % stripesize) % | |
5192 | r5or6_blocks_per_row); | |
5193 | ||
5194 | first_column = r5or6_first_column = | |
2b08b3e9 | 5195 | r5or6_first_row_offset / le16_to_cpu(map->strip_size); |
6b80b18f | 5196 | r5or6_last_column = |
2b08b3e9 | 5197 | r5or6_last_row_offset / le16_to_cpu(map->strip_size); |
6b80b18f ST |
5198 | #endif |
5199 | if (r5or6_first_column != r5or6_last_column) | |
5200 | return IO_ACCEL_INELIGIBLE; | |
5201 | ||
5202 | /* Request is eligible */ | |
5203 | map_row = ((u32)(first_row >> map->parity_rotation_shift)) % | |
2b08b3e9 | 5204 | le16_to_cpu(map->row_cnt); |
6b80b18f ST |
5205 | |
5206 | map_index = (first_group * | |
2b08b3e9 | 5207 | (le16_to_cpu(map->row_cnt) * total_disks_per_row)) + |
6b80b18f ST |
5208 | (map_row * total_disks_per_row) + first_column; |
5209 | break; | |
5210 | default: | |
5211 | return IO_ACCEL_INELIGIBLE; | |
283b4a9b | 5212 | } |
6b80b18f | 5213 | |
07543e0c SC |
5214 | if (unlikely(map_index >= RAID_MAP_MAX_ENTRIES)) |
5215 | return IO_ACCEL_INELIGIBLE; | |
5216 | ||
03383736 | 5217 | c->phys_disk = dev->phys_disk[map_index]; |
c3390df4 DB |
5218 | if (!c->phys_disk) |
5219 | return IO_ACCEL_INELIGIBLE; | |
03383736 | 5220 | |
283b4a9b | 5221 | disk_handle = dd[map_index].ioaccel_handle; |
2b08b3e9 DB |
5222 | disk_block = le64_to_cpu(map->disk_starting_blk) + |
5223 | first_row * le16_to_cpu(map->strip_size) + | |
5224 | (first_row_offset - first_column * | |
5225 | le16_to_cpu(map->strip_size)); | |
283b4a9b SC |
5226 | disk_block_cnt = block_cnt; |
5227 | ||
5228 | /* handle differing logical/physical block sizes */ | |
5229 | if (map->phys_blk_shift) { | |
5230 | disk_block <<= map->phys_blk_shift; | |
5231 | disk_block_cnt <<= map->phys_blk_shift; | |
5232 | } | |
5233 | BUG_ON(disk_block_cnt > 0xffff); | |
5234 | ||
5235 | /* build the new CDB for the physical disk I/O */ | |
5236 | if (disk_block > 0xffffffff) { | |
5237 | cdb[0] = is_write ? WRITE_16 : READ_16; | |
5238 | cdb[1] = 0; | |
5239 | cdb[2] = (u8) (disk_block >> 56); | |
5240 | cdb[3] = (u8) (disk_block >> 48); | |
5241 | cdb[4] = (u8) (disk_block >> 40); | |
5242 | cdb[5] = (u8) (disk_block >> 32); | |
5243 | cdb[6] = (u8) (disk_block >> 24); | |
5244 | cdb[7] = (u8) (disk_block >> 16); | |
5245 | cdb[8] = (u8) (disk_block >> 8); | |
5246 | cdb[9] = (u8) (disk_block); | |
5247 | cdb[10] = (u8) (disk_block_cnt >> 24); | |
5248 | cdb[11] = (u8) (disk_block_cnt >> 16); | |
5249 | cdb[12] = (u8) (disk_block_cnt >> 8); | |
5250 | cdb[13] = (u8) (disk_block_cnt); | |
5251 | cdb[14] = 0; | |
5252 | cdb[15] = 0; | |
5253 | cdb_len = 16; | |
5254 | } else { | |
5255 | cdb[0] = is_write ? WRITE_10 : READ_10; | |
5256 | cdb[1] = 0; | |
5257 | cdb[2] = (u8) (disk_block >> 24); | |
5258 | cdb[3] = (u8) (disk_block >> 16); | |
5259 | cdb[4] = (u8) (disk_block >> 8); | |
5260 | cdb[5] = (u8) (disk_block); | |
5261 | cdb[6] = 0; | |
5262 | cdb[7] = (u8) (disk_block_cnt >> 8); | |
5263 | cdb[8] = (u8) (disk_block_cnt); | |
5264 | cdb[9] = 0; | |
5265 | cdb_len = 10; | |
5266 | } | |
5267 | return hpsa_scsi_ioaccel_queue_command(h, c, disk_handle, cdb, cdb_len, | |
03383736 DB |
5268 | dev->scsi3addr, |
5269 | dev->phys_disk[map_index]); | |
283b4a9b SC |
5270 | } |
5271 | ||
25163bd5 WS |
5272 | /* |
5273 | * Submit commands down the "normal" RAID stack path | |
5274 | * All callers to hpsa_ciss_submit must check lockup_detected | |
5275 | * beforehand, before (opt.) and after calling cmd_alloc | |
5276 | */ | |
574f05d3 SC |
5277 | static int hpsa_ciss_submit(struct ctlr_info *h, |
5278 | struct CommandList *c, struct scsi_cmnd *cmd, | |
5279 | unsigned char scsi3addr[]) | |
edd16368 | 5280 | { |
edd16368 | 5281 | cmd->host_scribble = (unsigned char *) c; |
edd16368 SC |
5282 | c->cmd_type = CMD_SCSI; |
5283 | c->scsi_cmd = cmd; | |
5284 | c->Header.ReplyQueue = 0; /* unused in simple mode */ | |
5285 | memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8); | |
f2405db8 | 5286 | c->Header.tag = cpu_to_le64((c->cmdindex << DIRECT_LOOKUP_SHIFT)); |
edd16368 SC |
5287 | |
5288 | /* Fill in the request block... */ | |
5289 | ||
5290 | c->Request.Timeout = 0; | |
edd16368 SC |
5291 | BUG_ON(cmd->cmd_len > sizeof(c->Request.CDB)); |
5292 | c->Request.CDBLen = cmd->cmd_len; | |
5293 | memcpy(c->Request.CDB, cmd->cmnd, cmd->cmd_len); | |
edd16368 SC |
5294 | switch (cmd->sc_data_direction) { |
5295 | case DMA_TO_DEVICE: | |
a505b86f SC |
5296 | c->Request.type_attr_dir = |
5297 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_WRITE); | |
edd16368 SC |
5298 | break; |
5299 | case DMA_FROM_DEVICE: | |
a505b86f SC |
5300 | c->Request.type_attr_dir = |
5301 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_READ); | |
edd16368 SC |
5302 | break; |
5303 | case DMA_NONE: | |
a505b86f SC |
5304 | c->Request.type_attr_dir = |
5305 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_NONE); | |
edd16368 SC |
5306 | break; |
5307 | case DMA_BIDIRECTIONAL: | |
5308 | /* This can happen if a buggy application does a scsi passthru | |
5309 | * and sets both inlen and outlen to non-zero. ( see | |
5310 | * ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() ) | |
5311 | */ | |
5312 | ||
a505b86f SC |
5313 | c->Request.type_attr_dir = |
5314 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_RSVD); | |
edd16368 SC |
5315 | /* This is technically wrong, and hpsa controllers should |
5316 | * reject it with CMD_INVALID, which is the most correct | |
5317 | * response, but non-fibre backends appear to let it | |
5318 | * slide by, and give the same results as if this field | |
5319 | * were set correctly. Either way is acceptable for | |
5320 | * our purposes here. | |
5321 | */ | |
5322 | ||
5323 | break; | |
5324 | ||
5325 | default: | |
5326 | dev_err(&h->pdev->dev, "unknown data direction: %d\n", | |
5327 | cmd->sc_data_direction); | |
5328 | BUG(); | |
5329 | break; | |
5330 | } | |
5331 | ||
33a2ffce | 5332 | if (hpsa_scatter_gather(h, c, cmd) < 0) { /* Fill SG list */ |
73153fe5 | 5333 | hpsa_cmd_resolve_and_free(h, c); |
edd16368 SC |
5334 | return SCSI_MLQUEUE_HOST_BUSY; |
5335 | } | |
5336 | enqueue_cmd_and_start_io(h, c); | |
5337 | /* the cmd'll come back via intr handler in complete_scsi_command() */ | |
5338 | return 0; | |
5339 | } | |
5340 | ||
360c73bd SC |
5341 | static void hpsa_cmd_init(struct ctlr_info *h, int index, |
5342 | struct CommandList *c) | |
5343 | { | |
5344 | dma_addr_t cmd_dma_handle, err_dma_handle; | |
5345 | ||
5346 | /* Zero out all of commandlist except the last field, refcount */ | |
5347 | memset(c, 0, offsetof(struct CommandList, refcount)); | |
5348 | c->Header.tag = cpu_to_le64((u64) (index << DIRECT_LOOKUP_SHIFT)); | |
5349 | cmd_dma_handle = h->cmd_pool_dhandle + index * sizeof(*c); | |
5350 | c->err_info = h->errinfo_pool + index; | |
5351 | memset(c->err_info, 0, sizeof(*c->err_info)); | |
5352 | err_dma_handle = h->errinfo_pool_dhandle | |
5353 | + index * sizeof(*c->err_info); | |
5354 | c->cmdindex = index; | |
5355 | c->busaddr = (u32) cmd_dma_handle; | |
5356 | c->ErrDesc.Addr = cpu_to_le64((u64) err_dma_handle); | |
5357 | c->ErrDesc.Len = cpu_to_le32((u32) sizeof(*c->err_info)); | |
5358 | c->h = h; | |
a58e7e53 | 5359 | c->scsi_cmd = SCSI_CMD_IDLE; |
360c73bd SC |
5360 | } |
5361 | ||
5362 | static void hpsa_preinitialize_commands(struct ctlr_info *h) | |
5363 | { | |
5364 | int i; | |
5365 | ||
5366 | for (i = 0; i < h->nr_cmds; i++) { | |
5367 | struct CommandList *c = h->cmd_pool + i; | |
5368 | ||
5369 | hpsa_cmd_init(h, i, c); | |
5370 | atomic_set(&c->refcount, 0); | |
5371 | } | |
5372 | } | |
5373 | ||
5374 | static inline void hpsa_cmd_partial_init(struct ctlr_info *h, int index, | |
5375 | struct CommandList *c) | |
5376 | { | |
5377 | dma_addr_t cmd_dma_handle = h->cmd_pool_dhandle + index * sizeof(*c); | |
5378 | ||
73153fe5 WS |
5379 | BUG_ON(c->cmdindex != index); |
5380 | ||
360c73bd SC |
5381 | memset(c->Request.CDB, 0, sizeof(c->Request.CDB)); |
5382 | memset(c->err_info, 0, sizeof(*c->err_info)); | |
5383 | c->busaddr = (u32) cmd_dma_handle; | |
5384 | } | |
5385 | ||
592a0ad5 WS |
5386 | static int hpsa_ioaccel_submit(struct ctlr_info *h, |
5387 | struct CommandList *c, struct scsi_cmnd *cmd, | |
5388 | unsigned char *scsi3addr) | |
5389 | { | |
5390 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
5391 | int rc = IO_ACCEL_INELIGIBLE; | |
5392 | ||
45e596cd DB |
5393 | if (!dev) |
5394 | return SCSI_MLQUEUE_HOST_BUSY; | |
5395 | ||
592a0ad5 WS |
5396 | cmd->host_scribble = (unsigned char *) c; |
5397 | ||
5398 | if (dev->offload_enabled) { | |
5399 | hpsa_cmd_init(h, c->cmdindex, c); | |
5400 | c->cmd_type = CMD_SCSI; | |
5401 | c->scsi_cmd = cmd; | |
5402 | rc = hpsa_scsi_ioaccel_raid_map(h, c); | |
5403 | if (rc < 0) /* scsi_dma_map failed. */ | |
5404 | rc = SCSI_MLQUEUE_HOST_BUSY; | |
a3144e0b | 5405 | } else if (dev->hba_ioaccel_enabled) { |
592a0ad5 WS |
5406 | hpsa_cmd_init(h, c->cmdindex, c); |
5407 | c->cmd_type = CMD_SCSI; | |
5408 | c->scsi_cmd = cmd; | |
5409 | rc = hpsa_scsi_ioaccel_direct_map(h, c); | |
5410 | if (rc < 0) /* scsi_dma_map failed. */ | |
5411 | rc = SCSI_MLQUEUE_HOST_BUSY; | |
5412 | } | |
5413 | return rc; | |
5414 | } | |
5415 | ||
080ef1cc DB |
5416 | static void hpsa_command_resubmit_worker(struct work_struct *work) |
5417 | { | |
5418 | struct scsi_cmnd *cmd; | |
5419 | struct hpsa_scsi_dev_t *dev; | |
8a0ff92c | 5420 | struct CommandList *c = container_of(work, struct CommandList, work); |
080ef1cc DB |
5421 | |
5422 | cmd = c->scsi_cmd; | |
5423 | dev = cmd->device->hostdata; | |
5424 | if (!dev) { | |
5425 | cmd->result = DID_NO_CONNECT << 16; | |
8a0ff92c | 5426 | return hpsa_cmd_free_and_done(c->h, c, cmd); |
080ef1cc | 5427 | } |
d604f533 | 5428 | if (c->reset_pending) |
d2315ce6 | 5429 | return hpsa_cmd_free_and_done(c->h, c, cmd); |
592a0ad5 WS |
5430 | if (c->cmd_type == CMD_IOACCEL2) { |
5431 | struct ctlr_info *h = c->h; | |
5432 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
5433 | int rc; | |
5434 | ||
5435 | if (c2->error_data.serv_response == | |
5436 | IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL) { | |
5437 | rc = hpsa_ioaccel_submit(h, c, cmd, dev->scsi3addr); | |
5438 | if (rc == 0) | |
5439 | return; | |
5440 | if (rc == SCSI_MLQUEUE_HOST_BUSY) { | |
5441 | /* | |
5442 | * If we get here, it means dma mapping failed. | |
5443 | * Try again via scsi mid layer, which will | |
5444 | * then get SCSI_MLQUEUE_HOST_BUSY. | |
5445 | */ | |
5446 | cmd->result = DID_IMM_RETRY << 16; | |
8a0ff92c | 5447 | return hpsa_cmd_free_and_done(h, c, cmd); |
592a0ad5 WS |
5448 | } |
5449 | /* else, fall thru and resubmit down CISS path */ | |
5450 | } | |
5451 | } | |
360c73bd | 5452 | hpsa_cmd_partial_init(c->h, c->cmdindex, c); |
080ef1cc DB |
5453 | if (hpsa_ciss_submit(c->h, c, cmd, dev->scsi3addr)) { |
5454 | /* | |
5455 | * If we get here, it means dma mapping failed. Try | |
5456 | * again via scsi mid layer, which will then get | |
5457 | * SCSI_MLQUEUE_HOST_BUSY. | |
592a0ad5 WS |
5458 | * |
5459 | * hpsa_ciss_submit will have already freed c | |
5460 | * if it encountered a dma mapping failure. | |
080ef1cc DB |
5461 | */ |
5462 | cmd->result = DID_IMM_RETRY << 16; | |
5463 | cmd->scsi_done(cmd); | |
5464 | } | |
5465 | } | |
5466 | ||
574f05d3 SC |
5467 | /* Running in struct Scsi_Host->host_lock less mode */ |
5468 | static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd) | |
5469 | { | |
5470 | struct ctlr_info *h; | |
5471 | struct hpsa_scsi_dev_t *dev; | |
5472 | unsigned char scsi3addr[8]; | |
5473 | struct CommandList *c; | |
5474 | int rc = 0; | |
5475 | ||
5476 | /* Get the ptr to our adapter structure out of cmd->host. */ | |
5477 | h = sdev_to_hba(cmd->device); | |
73153fe5 WS |
5478 | |
5479 | BUG_ON(cmd->request->tag < 0); | |
5480 | ||
574f05d3 SC |
5481 | dev = cmd->device->hostdata; |
5482 | if (!dev) { | |
1ccde700 | 5483 | cmd->result = DID_NO_CONNECT << 16; |
ba74fdc4 DB |
5484 | cmd->scsi_done(cmd); |
5485 | return 0; | |
5486 | } | |
5487 | ||
5488 | if (dev->removed) { | |
574f05d3 SC |
5489 | cmd->result = DID_NO_CONNECT << 16; |
5490 | cmd->scsi_done(cmd); | |
5491 | return 0; | |
5492 | } | |
574f05d3 | 5493 | |
73153fe5 | 5494 | memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr)); |
bf43caf3 | 5495 | |
407863cb | 5496 | if (unlikely(lockup_detected(h))) { |
25163bd5 | 5497 | cmd->result = DID_NO_CONNECT << 16; |
407863cb SC |
5498 | cmd->scsi_done(cmd); |
5499 | return 0; | |
5500 | } | |
73153fe5 | 5501 | c = cmd_tagged_alloc(h, cmd); |
574f05d3 | 5502 | |
407863cb SC |
5503 | /* |
5504 | * Call alternate submit routine for I/O accelerated commands. | |
574f05d3 SC |
5505 | * Retries always go down the normal I/O path. |
5506 | */ | |
5507 | if (likely(cmd->retries == 0 && | |
57292b58 CH |
5508 | !blk_rq_is_passthrough(cmd->request) && |
5509 | h->acciopath_status)) { | |
592a0ad5 WS |
5510 | rc = hpsa_ioaccel_submit(h, c, cmd, scsi3addr); |
5511 | if (rc == 0) | |
5512 | return 0; | |
5513 | if (rc == SCSI_MLQUEUE_HOST_BUSY) { | |
73153fe5 | 5514 | hpsa_cmd_resolve_and_free(h, c); |
592a0ad5 | 5515 | return SCSI_MLQUEUE_HOST_BUSY; |
574f05d3 SC |
5516 | } |
5517 | } | |
5518 | return hpsa_ciss_submit(h, c, cmd, scsi3addr); | |
5519 | } | |
5520 | ||
8ebc9248 | 5521 | static void hpsa_scan_complete(struct ctlr_info *h) |
5f389360 SC |
5522 | { |
5523 | unsigned long flags; | |
5524 | ||
8ebc9248 WS |
5525 | spin_lock_irqsave(&h->scan_lock, flags); |
5526 | h->scan_finished = 1; | |
87b9e6aa | 5527 | wake_up(&h->scan_wait_queue); |
8ebc9248 | 5528 | spin_unlock_irqrestore(&h->scan_lock, flags); |
5f389360 SC |
5529 | } |
5530 | ||
a08a8471 SC |
5531 | static void hpsa_scan_start(struct Scsi_Host *sh) |
5532 | { | |
5533 | struct ctlr_info *h = shost_to_hba(sh); | |
5534 | unsigned long flags; | |
5535 | ||
8ebc9248 WS |
5536 | /* |
5537 | * Don't let rescans be initiated on a controller known to be locked | |
5538 | * up. If the controller locks up *during* a rescan, that thread is | |
5539 | * probably hosed, but at least we can prevent new rescan threads from | |
5540 | * piling up on a locked up controller. | |
5541 | */ | |
5542 | if (unlikely(lockup_detected(h))) | |
5543 | return hpsa_scan_complete(h); | |
5f389360 | 5544 | |
87b9e6aa DB |
5545 | /* |
5546 | * If a scan is already waiting to run, no need to add another | |
5547 | */ | |
5548 | spin_lock_irqsave(&h->scan_lock, flags); | |
5549 | if (h->scan_waiting) { | |
5550 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
5551 | return; | |
5552 | } | |
5553 | ||
5554 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
5555 | ||
a08a8471 SC |
5556 | /* wait until any scan already in progress is finished. */ |
5557 | while (1) { | |
5558 | spin_lock_irqsave(&h->scan_lock, flags); | |
5559 | if (h->scan_finished) | |
5560 | break; | |
87b9e6aa | 5561 | h->scan_waiting = 1; |
a08a8471 SC |
5562 | spin_unlock_irqrestore(&h->scan_lock, flags); |
5563 | wait_event(h->scan_wait_queue, h->scan_finished); | |
5564 | /* Note: We don't need to worry about a race between this | |
5565 | * thread and driver unload because the midlayer will | |
5566 | * have incremented the reference count, so unload won't | |
5567 | * happen if we're in here. | |
5568 | */ | |
5569 | } | |
5570 | h->scan_finished = 0; /* mark scan as in progress */ | |
87b9e6aa | 5571 | h->scan_waiting = 0; |
a08a8471 SC |
5572 | spin_unlock_irqrestore(&h->scan_lock, flags); |
5573 | ||
8ebc9248 WS |
5574 | if (unlikely(lockup_detected(h))) |
5575 | return hpsa_scan_complete(h); | |
5f389360 | 5576 | |
bfd7546c DB |
5577 | /* |
5578 | * Do the scan after a reset completion | |
5579 | */ | |
c59d04f3 | 5580 | spin_lock_irqsave(&h->reset_lock, flags); |
bfd7546c DB |
5581 | if (h->reset_in_progress) { |
5582 | h->drv_req_rescan = 1; | |
c59d04f3 | 5583 | spin_unlock_irqrestore(&h->reset_lock, flags); |
3b476aa2 | 5584 | hpsa_scan_complete(h); |
bfd7546c DB |
5585 | return; |
5586 | } | |
c59d04f3 | 5587 | spin_unlock_irqrestore(&h->reset_lock, flags); |
bfd7546c | 5588 | |
8aa60681 | 5589 | hpsa_update_scsi_devices(h); |
a08a8471 | 5590 | |
8ebc9248 | 5591 | hpsa_scan_complete(h); |
a08a8471 SC |
5592 | } |
5593 | ||
7c0a0229 DB |
5594 | static int hpsa_change_queue_depth(struct scsi_device *sdev, int qdepth) |
5595 | { | |
03383736 DB |
5596 | struct hpsa_scsi_dev_t *logical_drive = sdev->hostdata; |
5597 | ||
5598 | if (!logical_drive) | |
5599 | return -ENODEV; | |
7c0a0229 DB |
5600 | |
5601 | if (qdepth < 1) | |
5602 | qdepth = 1; | |
03383736 DB |
5603 | else if (qdepth > logical_drive->queue_depth) |
5604 | qdepth = logical_drive->queue_depth; | |
5605 | ||
5606 | return scsi_change_queue_depth(sdev, qdepth); | |
7c0a0229 DB |
5607 | } |
5608 | ||
a08a8471 SC |
5609 | static int hpsa_scan_finished(struct Scsi_Host *sh, |
5610 | unsigned long elapsed_time) | |
5611 | { | |
5612 | struct ctlr_info *h = shost_to_hba(sh); | |
5613 | unsigned long flags; | |
5614 | int finished; | |
5615 | ||
5616 | spin_lock_irqsave(&h->scan_lock, flags); | |
5617 | finished = h->scan_finished; | |
5618 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
5619 | return finished; | |
5620 | } | |
5621 | ||
2946e82b | 5622 | static int hpsa_scsi_host_alloc(struct ctlr_info *h) |
edd16368 | 5623 | { |
b705690d | 5624 | struct Scsi_Host *sh; |
edd16368 | 5625 | |
b705690d | 5626 | sh = scsi_host_alloc(&hpsa_driver_template, sizeof(h)); |
2946e82b RE |
5627 | if (sh == NULL) { |
5628 | dev_err(&h->pdev->dev, "scsi_host_alloc failed\n"); | |
5629 | return -ENOMEM; | |
5630 | } | |
b705690d SC |
5631 | |
5632 | sh->io_port = 0; | |
5633 | sh->n_io_port = 0; | |
5634 | sh->this_id = -1; | |
5635 | sh->max_channel = 3; | |
5636 | sh->max_cmd_len = MAX_COMMAND_SIZE; | |
5637 | sh->max_lun = HPSA_MAX_LUN; | |
5638 | sh->max_id = HPSA_MAX_LUN; | |
41ce4c35 | 5639 | sh->can_queue = h->nr_cmds - HPSA_NRESERVED_CMDS; |
03383736 | 5640 | sh->cmd_per_lun = sh->can_queue; |
b705690d | 5641 | sh->sg_tablesize = h->maxsgentries; |
d04e62b9 | 5642 | sh->transportt = hpsa_sas_transport_template; |
b705690d | 5643 | sh->hostdata[0] = (unsigned long) h; |
bc2bb154 | 5644 | sh->irq = pci_irq_vector(h->pdev, 0); |
b705690d | 5645 | sh->unique_id = sh->irq; |
64d513ac | 5646 | |
2946e82b | 5647 | h->scsi_host = sh; |
b705690d | 5648 | return 0; |
2946e82b | 5649 | } |
b705690d | 5650 | |
2946e82b RE |
5651 | static int hpsa_scsi_add_host(struct ctlr_info *h) |
5652 | { | |
5653 | int rv; | |
5654 | ||
5655 | rv = scsi_add_host(h->scsi_host, &h->pdev->dev); | |
5656 | if (rv) { | |
5657 | dev_err(&h->pdev->dev, "scsi_add_host failed\n"); | |
5658 | return rv; | |
5659 | } | |
5660 | scsi_scan_host(h->scsi_host); | |
5661 | return 0; | |
edd16368 SC |
5662 | } |
5663 | ||
73153fe5 WS |
5664 | /* |
5665 | * The block layer has already gone to the trouble of picking out a unique, | |
5666 | * small-integer tag for this request. We use an offset from that value as | |
5667 | * an index to select our command block. (The offset allows us to reserve the | |
5668 | * low-numbered entries for our own uses.) | |
5669 | */ | |
5670 | static int hpsa_get_cmd_index(struct scsi_cmnd *scmd) | |
5671 | { | |
5672 | int idx = scmd->request->tag; | |
5673 | ||
5674 | if (idx < 0) | |
5675 | return idx; | |
5676 | ||
5677 | /* Offset to leave space for internal cmds. */ | |
5678 | return idx += HPSA_NRESERVED_CMDS; | |
5679 | } | |
5680 | ||
b69324ff WS |
5681 | /* |
5682 | * Send a TEST_UNIT_READY command to the specified LUN using the specified | |
5683 | * reply queue; returns zero if the unit is ready, and non-zero otherwise. | |
5684 | */ | |
5685 | static int hpsa_send_test_unit_ready(struct ctlr_info *h, | |
5686 | struct CommandList *c, unsigned char lunaddr[], | |
5687 | int reply_queue) | |
5688 | { | |
5689 | int rc; | |
5690 | ||
5691 | /* Send the Test Unit Ready, fill_cmd can't fail, no mapping */ | |
5692 | (void) fill_cmd(c, TEST_UNIT_READY, h, | |
5693 | NULL, 0, 0, lunaddr, TYPE_CMD); | |
c448ecfa | 5694 | rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, DEFAULT_TIMEOUT); |
b69324ff WS |
5695 | if (rc) |
5696 | return rc; | |
5697 | /* no unmap needed here because no data xfer. */ | |
5698 | ||
5699 | /* Check if the unit is already ready. */ | |
5700 | if (c->err_info->CommandStatus == CMD_SUCCESS) | |
5701 | return 0; | |
5702 | ||
5703 | /* | |
5704 | * The first command sent after reset will receive "unit attention" to | |
5705 | * indicate that the LUN has been reset...this is actually what we're | |
5706 | * looking for (but, success is good too). | |
5707 | */ | |
5708 | if (c->err_info->CommandStatus == CMD_TARGET_STATUS && | |
5709 | c->err_info->ScsiStatus == SAM_STAT_CHECK_CONDITION && | |
5710 | (c->err_info->SenseInfo[2] == NO_SENSE || | |
5711 | c->err_info->SenseInfo[2] == UNIT_ATTENTION)) | |
5712 | return 0; | |
5713 | ||
5714 | return 1; | |
5715 | } | |
5716 | ||
5717 | /* | |
5718 | * Wait for a TEST_UNIT_READY command to complete, retrying as necessary; | |
5719 | * returns zero when the unit is ready, and non-zero when giving up. | |
5720 | */ | |
5721 | static int hpsa_wait_for_test_unit_ready(struct ctlr_info *h, | |
5722 | struct CommandList *c, | |
5723 | unsigned char lunaddr[], int reply_queue) | |
edd16368 | 5724 | { |
8919358e | 5725 | int rc; |
edd16368 SC |
5726 | int count = 0; |
5727 | int waittime = 1; /* seconds */ | |
edd16368 SC |
5728 | |
5729 | /* Send test unit ready until device ready, or give up. */ | |
b69324ff | 5730 | for (count = 0; count < HPSA_TUR_RETRY_LIMIT; count++) { |
edd16368 | 5731 | |
b69324ff WS |
5732 | /* |
5733 | * Wait for a bit. do this first, because if we send | |
edd16368 SC |
5734 | * the TUR right away, the reset will just abort it. |
5735 | */ | |
5736 | msleep(1000 * waittime); | |
b69324ff WS |
5737 | |
5738 | rc = hpsa_send_test_unit_ready(h, c, lunaddr, reply_queue); | |
5739 | if (!rc) | |
5740 | break; | |
edd16368 SC |
5741 | |
5742 | /* Increase wait time with each try, up to a point. */ | |
5743 | if (waittime < HPSA_MAX_WAIT_INTERVAL_SECS) | |
b69324ff | 5744 | waittime *= 2; |
edd16368 | 5745 | |
b69324ff WS |
5746 | dev_warn(&h->pdev->dev, |
5747 | "waiting %d secs for device to become ready.\n", | |
5748 | waittime); | |
5749 | } | |
edd16368 | 5750 | |
b69324ff WS |
5751 | return rc; |
5752 | } | |
edd16368 | 5753 | |
b69324ff WS |
5754 | static int wait_for_device_to_become_ready(struct ctlr_info *h, |
5755 | unsigned char lunaddr[], | |
5756 | int reply_queue) | |
5757 | { | |
5758 | int first_queue; | |
5759 | int last_queue; | |
5760 | int rq; | |
5761 | int rc = 0; | |
5762 | struct CommandList *c; | |
5763 | ||
5764 | c = cmd_alloc(h); | |
5765 | ||
5766 | /* | |
5767 | * If no specific reply queue was requested, then send the TUR | |
5768 | * repeatedly, requesting a reply on each reply queue; otherwise execute | |
5769 | * the loop exactly once using only the specified queue. | |
5770 | */ | |
5771 | if (reply_queue == DEFAULT_REPLY_QUEUE) { | |
5772 | first_queue = 0; | |
5773 | last_queue = h->nreply_queues - 1; | |
5774 | } else { | |
5775 | first_queue = reply_queue; | |
5776 | last_queue = reply_queue; | |
5777 | } | |
5778 | ||
5779 | for (rq = first_queue; rq <= last_queue; rq++) { | |
5780 | rc = hpsa_wait_for_test_unit_ready(h, c, lunaddr, rq); | |
5781 | if (rc) | |
edd16368 | 5782 | break; |
edd16368 SC |
5783 | } |
5784 | ||
5785 | if (rc) | |
5786 | dev_warn(&h->pdev->dev, "giving up on device.\n"); | |
5787 | else | |
5788 | dev_warn(&h->pdev->dev, "device is ready.\n"); | |
5789 | ||
45fcb86e | 5790 | cmd_free(h, c); |
edd16368 SC |
5791 | return rc; |
5792 | } | |
5793 | ||
5794 | /* Need at least one of these error handlers to keep ../scsi/hosts.c from | |
5795 | * complaining. Doing a host- or bus-reset can't do anything good here. | |
5796 | */ | |
5797 | static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd) | |
5798 | { | |
c59d04f3 | 5799 | int rc = SUCCESS; |
edd16368 SC |
5800 | struct ctlr_info *h; |
5801 | struct hpsa_scsi_dev_t *dev; | |
0b9b7b6e | 5802 | u8 reset_type; |
2dc127bb | 5803 | char msg[48]; |
c59d04f3 | 5804 | unsigned long flags; |
edd16368 SC |
5805 | |
5806 | /* find the controller to which the command to be aborted was sent */ | |
5807 | h = sdev_to_hba(scsicmd->device); | |
5808 | if (h == NULL) /* paranoia */ | |
5809 | return FAILED; | |
e345893b | 5810 | |
c59d04f3 DB |
5811 | spin_lock_irqsave(&h->reset_lock, flags); |
5812 | h->reset_in_progress = 1; | |
5813 | spin_unlock_irqrestore(&h->reset_lock, flags); | |
5814 | ||
5815 | if (lockup_detected(h)) { | |
5816 | rc = FAILED; | |
5817 | goto return_reset_status; | |
5818 | } | |
e345893b | 5819 | |
edd16368 SC |
5820 | dev = scsicmd->device->hostdata; |
5821 | if (!dev) { | |
d604f533 | 5822 | dev_err(&h->pdev->dev, "%s: device lookup failed\n", __func__); |
c59d04f3 DB |
5823 | rc = FAILED; |
5824 | goto return_reset_status; | |
edd16368 | 5825 | } |
25163bd5 | 5826 | |
c59d04f3 DB |
5827 | if (dev->devtype == TYPE_ENCLOSURE) { |
5828 | rc = SUCCESS; | |
5829 | goto return_reset_status; | |
5830 | } | |
ef8a5203 | 5831 | |
25163bd5 WS |
5832 | /* if controller locked up, we can guarantee command won't complete */ |
5833 | if (lockup_detected(h)) { | |
2dc127bb DC |
5834 | snprintf(msg, sizeof(msg), |
5835 | "cmd %d RESET FAILED, lockup detected", | |
5836 | hpsa_get_cmd_index(scsicmd)); | |
73153fe5 | 5837 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); |
c59d04f3 DB |
5838 | rc = FAILED; |
5839 | goto return_reset_status; | |
25163bd5 WS |
5840 | } |
5841 | ||
5842 | /* this reset request might be the result of a lockup; check */ | |
5843 | if (detect_controller_lockup(h)) { | |
2dc127bb DC |
5844 | snprintf(msg, sizeof(msg), |
5845 | "cmd %d RESET FAILED, new lockup detected", | |
5846 | hpsa_get_cmd_index(scsicmd)); | |
73153fe5 | 5847 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); |
c59d04f3 DB |
5848 | rc = FAILED; |
5849 | goto return_reset_status; | |
25163bd5 WS |
5850 | } |
5851 | ||
d604f533 | 5852 | /* Do not attempt on controller */ |
c59d04f3 DB |
5853 | if (is_hba_lunid(dev->scsi3addr)) { |
5854 | rc = SUCCESS; | |
5855 | goto return_reset_status; | |
5856 | } | |
d604f533 | 5857 | |
0b9b7b6e ST |
5858 | if (is_logical_dev_addr_mode(dev->scsi3addr)) |
5859 | reset_type = HPSA_DEVICE_RESET_MSG; | |
5860 | else | |
5861 | reset_type = HPSA_PHYS_TARGET_RESET; | |
5862 | ||
5863 | sprintf(msg, "resetting %s", | |
5864 | reset_type == HPSA_DEVICE_RESET_MSG ? "logical " : "physical "); | |
5865 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); | |
25163bd5 | 5866 | |
edd16368 | 5867 | /* send a reset to the SCSI LUN which the command was sent to */ |
0b9b7b6e | 5868 | rc = hpsa_do_reset(h, dev, dev->scsi3addr, reset_type, |
d604f533 | 5869 | DEFAULT_REPLY_QUEUE); |
c59d04f3 DB |
5870 | if (rc == 0) |
5871 | rc = SUCCESS; | |
5872 | else | |
5873 | rc = FAILED; | |
5874 | ||
0b9b7b6e ST |
5875 | sprintf(msg, "reset %s %s", |
5876 | reset_type == HPSA_DEVICE_RESET_MSG ? "logical " : "physical ", | |
c59d04f3 | 5877 | rc == SUCCESS ? "completed successfully" : "failed"); |
d604f533 | 5878 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); |
c59d04f3 DB |
5879 | |
5880 | return_reset_status: | |
5881 | spin_lock_irqsave(&h->reset_lock, flags); | |
da03ded0 | 5882 | h->reset_in_progress = 0; |
c59d04f3 DB |
5883 | spin_unlock_irqrestore(&h->reset_lock, flags); |
5884 | return rc; | |
edd16368 SC |
5885 | } |
5886 | ||
73153fe5 WS |
5887 | /* |
5888 | * For operations with an associated SCSI command, a command block is allocated | |
5889 | * at init, and managed by cmd_tagged_alloc() and cmd_tagged_free() using the | |
5890 | * block request tag as an index into a table of entries. cmd_tagged_free() is | |
5891 | * the complement, although cmd_free() may be called instead. | |
5892 | */ | |
5893 | static struct CommandList *cmd_tagged_alloc(struct ctlr_info *h, | |
5894 | struct scsi_cmnd *scmd) | |
5895 | { | |
5896 | int idx = hpsa_get_cmd_index(scmd); | |
5897 | struct CommandList *c = h->cmd_pool + idx; | |
5898 | ||
5899 | if (idx < HPSA_NRESERVED_CMDS || idx >= h->nr_cmds) { | |
5900 | dev_err(&h->pdev->dev, "Bad block tag: %d not in [%d..%d]\n", | |
5901 | idx, HPSA_NRESERVED_CMDS, h->nr_cmds - 1); | |
5902 | /* The index value comes from the block layer, so if it's out of | |
5903 | * bounds, it's probably not our bug. | |
5904 | */ | |
5905 | BUG(); | |
5906 | } | |
5907 | ||
5908 | atomic_inc(&c->refcount); | |
5909 | if (unlikely(!hpsa_is_cmd_idle(c))) { | |
5910 | /* | |
5911 | * We expect that the SCSI layer will hand us a unique tag | |
5912 | * value. Thus, there should never be a collision here between | |
5913 | * two requests...because if the selected command isn't idle | |
5914 | * then someone is going to be very disappointed. | |
5915 | */ | |
5916 | dev_err(&h->pdev->dev, | |
5917 | "tag collision (tag=%d) in cmd_tagged_alloc().\n", | |
5918 | idx); | |
5919 | if (c->scsi_cmd != NULL) | |
5920 | scsi_print_command(c->scsi_cmd); | |
5921 | scsi_print_command(scmd); | |
5922 | } | |
5923 | ||
5924 | hpsa_cmd_partial_init(h, idx, c); | |
5925 | return c; | |
5926 | } | |
5927 | ||
5928 | static void cmd_tagged_free(struct ctlr_info *h, struct CommandList *c) | |
5929 | { | |
5930 | /* | |
5931 | * Release our reference to the block. We don't need to do anything | |
08ec46f6 | 5932 | * else to free it, because it is accessed by index. |
73153fe5 WS |
5933 | */ |
5934 | (void)atomic_dec(&c->refcount); | |
5935 | } | |
5936 | ||
edd16368 SC |
5937 | /* |
5938 | * For operations that cannot sleep, a command block is allocated at init, | |
5939 | * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track | |
5940 | * which ones are free or in use. Lock must be held when calling this. | |
5941 | * cmd_free() is the complement. | |
bf43caf3 RE |
5942 | * This function never gives up and returns NULL. If it hangs, |
5943 | * another thread must call cmd_free() to free some tags. | |
edd16368 | 5944 | */ |
281a7fd0 | 5945 | |
edd16368 SC |
5946 | static struct CommandList *cmd_alloc(struct ctlr_info *h) |
5947 | { | |
5948 | struct CommandList *c; | |
360c73bd | 5949 | int refcount, i; |
73153fe5 | 5950 | int offset = 0; |
4c413128 | 5951 | |
33811026 RE |
5952 | /* |
5953 | * There is some *extremely* small but non-zero chance that that | |
4c413128 SC |
5954 | * multiple threads could get in here, and one thread could |
5955 | * be scanning through the list of bits looking for a free | |
5956 | * one, but the free ones are always behind him, and other | |
5957 | * threads sneak in behind him and eat them before he can | |
5958 | * get to them, so that while there is always a free one, a | |
5959 | * very unlucky thread might be starved anyway, never able to | |
5960 | * beat the other threads. In reality, this happens so | |
5961 | * infrequently as to be indistinguishable from never. | |
73153fe5 WS |
5962 | * |
5963 | * Note that we start allocating commands before the SCSI host structure | |
5964 | * is initialized. Since the search starts at bit zero, this | |
5965 | * all works, since we have at least one command structure available; | |
5966 | * however, it means that the structures with the low indexes have to be | |
5967 | * reserved for driver-initiated requests, while requests from the block | |
5968 | * layer will use the higher indexes. | |
4c413128 | 5969 | */ |
edd16368 | 5970 | |
281a7fd0 | 5971 | for (;;) { |
73153fe5 WS |
5972 | i = find_next_zero_bit(h->cmd_pool_bits, |
5973 | HPSA_NRESERVED_CMDS, | |
5974 | offset); | |
5975 | if (unlikely(i >= HPSA_NRESERVED_CMDS)) { | |
281a7fd0 WS |
5976 | offset = 0; |
5977 | continue; | |
5978 | } | |
5979 | c = h->cmd_pool + i; | |
5980 | refcount = atomic_inc_return(&c->refcount); | |
5981 | if (unlikely(refcount > 1)) { | |
5982 | cmd_free(h, c); /* already in use */ | |
73153fe5 | 5983 | offset = (i + 1) % HPSA_NRESERVED_CMDS; |
281a7fd0 WS |
5984 | continue; |
5985 | } | |
5986 | set_bit(i & (BITS_PER_LONG - 1), | |
5987 | h->cmd_pool_bits + (i / BITS_PER_LONG)); | |
5988 | break; /* it's ours now. */ | |
5989 | } | |
360c73bd | 5990 | hpsa_cmd_partial_init(h, i, c); |
edd16368 SC |
5991 | return c; |
5992 | } | |
5993 | ||
73153fe5 WS |
5994 | /* |
5995 | * This is the complementary operation to cmd_alloc(). Note, however, in some | |
5996 | * corner cases it may also be used to free blocks allocated by | |
5997 | * cmd_tagged_alloc() in which case the ref-count decrement does the trick and | |
5998 | * the clear-bit is harmless. | |
5999 | */ | |
edd16368 SC |
6000 | static void cmd_free(struct ctlr_info *h, struct CommandList *c) |
6001 | { | |
281a7fd0 WS |
6002 | if (atomic_dec_and_test(&c->refcount)) { |
6003 | int i; | |
edd16368 | 6004 | |
281a7fd0 WS |
6005 | i = c - h->cmd_pool; |
6006 | clear_bit(i & (BITS_PER_LONG - 1), | |
6007 | h->cmd_pool_bits + (i / BITS_PER_LONG)); | |
6008 | } | |
edd16368 SC |
6009 | } |
6010 | ||
edd16368 SC |
6011 | #ifdef CONFIG_COMPAT |
6012 | ||
42a91641 DB |
6013 | static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, |
6014 | void __user *arg) | |
edd16368 SC |
6015 | { |
6016 | IOCTL32_Command_struct __user *arg32 = | |
6017 | (IOCTL32_Command_struct __user *) arg; | |
6018 | IOCTL_Command_struct arg64; | |
6019 | IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(arg64)); | |
6020 | int err; | |
6021 | u32 cp; | |
6022 | ||
938abd84 | 6023 | memset(&arg64, 0, sizeof(arg64)); |
edd16368 SC |
6024 | err = 0; |
6025 | err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, | |
6026 | sizeof(arg64.LUN_info)); | |
6027 | err |= copy_from_user(&arg64.Request, &arg32->Request, | |
6028 | sizeof(arg64.Request)); | |
6029 | err |= copy_from_user(&arg64.error_info, &arg32->error_info, | |
6030 | sizeof(arg64.error_info)); | |
6031 | err |= get_user(arg64.buf_size, &arg32->buf_size); | |
6032 | err |= get_user(cp, &arg32->buf); | |
6033 | arg64.buf = compat_ptr(cp); | |
6034 | err |= copy_to_user(p, &arg64, sizeof(arg64)); | |
6035 | ||
6036 | if (err) | |
6037 | return -EFAULT; | |
6038 | ||
42a91641 | 6039 | err = hpsa_ioctl(dev, CCISS_PASSTHRU, p); |
edd16368 SC |
6040 | if (err) |
6041 | return err; | |
6042 | err |= copy_in_user(&arg32->error_info, &p->error_info, | |
6043 | sizeof(arg32->error_info)); | |
6044 | if (err) | |
6045 | return -EFAULT; | |
6046 | return err; | |
6047 | } | |
6048 | ||
6049 | static int hpsa_ioctl32_big_passthru(struct scsi_device *dev, | |
42a91641 | 6050 | int cmd, void __user *arg) |
edd16368 SC |
6051 | { |
6052 | BIG_IOCTL32_Command_struct __user *arg32 = | |
6053 | (BIG_IOCTL32_Command_struct __user *) arg; | |
6054 | BIG_IOCTL_Command_struct arg64; | |
6055 | BIG_IOCTL_Command_struct __user *p = | |
6056 | compat_alloc_user_space(sizeof(arg64)); | |
6057 | int err; | |
6058 | u32 cp; | |
6059 | ||
938abd84 | 6060 | memset(&arg64, 0, sizeof(arg64)); |
edd16368 SC |
6061 | err = 0; |
6062 | err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, | |
6063 | sizeof(arg64.LUN_info)); | |
6064 | err |= copy_from_user(&arg64.Request, &arg32->Request, | |
6065 | sizeof(arg64.Request)); | |
6066 | err |= copy_from_user(&arg64.error_info, &arg32->error_info, | |
6067 | sizeof(arg64.error_info)); | |
6068 | err |= get_user(arg64.buf_size, &arg32->buf_size); | |
6069 | err |= get_user(arg64.malloc_size, &arg32->malloc_size); | |
6070 | err |= get_user(cp, &arg32->buf); | |
6071 | arg64.buf = compat_ptr(cp); | |
6072 | err |= copy_to_user(p, &arg64, sizeof(arg64)); | |
6073 | ||
6074 | if (err) | |
6075 | return -EFAULT; | |
6076 | ||
42a91641 | 6077 | err = hpsa_ioctl(dev, CCISS_BIG_PASSTHRU, p); |
edd16368 SC |
6078 | if (err) |
6079 | return err; | |
6080 | err |= copy_in_user(&arg32->error_info, &p->error_info, | |
6081 | sizeof(arg32->error_info)); | |
6082 | if (err) | |
6083 | return -EFAULT; | |
6084 | return err; | |
6085 | } | |
71fe75a7 | 6086 | |
42a91641 | 6087 | static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, void __user *arg) |
71fe75a7 SC |
6088 | { |
6089 | switch (cmd) { | |
6090 | case CCISS_GETPCIINFO: | |
6091 | case CCISS_GETINTINFO: | |
6092 | case CCISS_SETINTINFO: | |
6093 | case CCISS_GETNODENAME: | |
6094 | case CCISS_SETNODENAME: | |
6095 | case CCISS_GETHEARTBEAT: | |
6096 | case CCISS_GETBUSTYPES: | |
6097 | case CCISS_GETFIRMVER: | |
6098 | case CCISS_GETDRIVVER: | |
6099 | case CCISS_REVALIDVOLS: | |
6100 | case CCISS_DEREGDISK: | |
6101 | case CCISS_REGNEWDISK: | |
6102 | case CCISS_REGNEWD: | |
6103 | case CCISS_RESCANDISK: | |
6104 | case CCISS_GETLUNINFO: | |
6105 | return hpsa_ioctl(dev, cmd, arg); | |
6106 | ||
6107 | case CCISS_PASSTHRU32: | |
6108 | return hpsa_ioctl32_passthru(dev, cmd, arg); | |
6109 | case CCISS_BIG_PASSTHRU32: | |
6110 | return hpsa_ioctl32_big_passthru(dev, cmd, arg); | |
6111 | ||
6112 | default: | |
6113 | return -ENOIOCTLCMD; | |
6114 | } | |
6115 | } | |
edd16368 SC |
6116 | #endif |
6117 | ||
6118 | static int hpsa_getpciinfo_ioctl(struct ctlr_info *h, void __user *argp) | |
6119 | { | |
6120 | struct hpsa_pci_info pciinfo; | |
6121 | ||
6122 | if (!argp) | |
6123 | return -EINVAL; | |
6124 | pciinfo.domain = pci_domain_nr(h->pdev->bus); | |
6125 | pciinfo.bus = h->pdev->bus->number; | |
6126 | pciinfo.dev_fn = h->pdev->devfn; | |
6127 | pciinfo.board_id = h->board_id; | |
6128 | if (copy_to_user(argp, &pciinfo, sizeof(pciinfo))) | |
6129 | return -EFAULT; | |
6130 | return 0; | |
6131 | } | |
6132 | ||
6133 | static int hpsa_getdrivver_ioctl(struct ctlr_info *h, void __user *argp) | |
6134 | { | |
6135 | DriverVer_type DriverVer; | |
6136 | unsigned char vmaj, vmin, vsubmin; | |
6137 | int rc; | |
6138 | ||
6139 | rc = sscanf(HPSA_DRIVER_VERSION, "%hhu.%hhu.%hhu", | |
6140 | &vmaj, &vmin, &vsubmin); | |
6141 | if (rc != 3) { | |
6142 | dev_info(&h->pdev->dev, "driver version string '%s' " | |
6143 | "unrecognized.", HPSA_DRIVER_VERSION); | |
6144 | vmaj = 0; | |
6145 | vmin = 0; | |
6146 | vsubmin = 0; | |
6147 | } | |
6148 | DriverVer = (vmaj << 16) | (vmin << 8) | vsubmin; | |
6149 | if (!argp) | |
6150 | return -EINVAL; | |
6151 | if (copy_to_user(argp, &DriverVer, sizeof(DriverVer_type))) | |
6152 | return -EFAULT; | |
6153 | return 0; | |
6154 | } | |
6155 | ||
6156 | static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp) | |
6157 | { | |
6158 | IOCTL_Command_struct iocommand; | |
6159 | struct CommandList *c; | |
6160 | char *buff = NULL; | |
50a0decf | 6161 | u64 temp64; |
c1f63c8f | 6162 | int rc = 0; |
edd16368 SC |
6163 | |
6164 | if (!argp) | |
6165 | return -EINVAL; | |
6166 | if (!capable(CAP_SYS_RAWIO)) | |
6167 | return -EPERM; | |
6168 | if (copy_from_user(&iocommand, argp, sizeof(iocommand))) | |
6169 | return -EFAULT; | |
6170 | if ((iocommand.buf_size < 1) && | |
6171 | (iocommand.Request.Type.Direction != XFER_NONE)) { | |
6172 | return -EINVAL; | |
6173 | } | |
6174 | if (iocommand.buf_size > 0) { | |
6175 | buff = kmalloc(iocommand.buf_size, GFP_KERNEL); | |
6176 | if (buff == NULL) | |
2dd02d74 | 6177 | return -ENOMEM; |
9233fb10 | 6178 | if (iocommand.Request.Type.Direction & XFER_WRITE) { |
b03a7771 SC |
6179 | /* Copy the data into the buffer we created */ |
6180 | if (copy_from_user(buff, iocommand.buf, | |
6181 | iocommand.buf_size)) { | |
c1f63c8f SC |
6182 | rc = -EFAULT; |
6183 | goto out_kfree; | |
b03a7771 SC |
6184 | } |
6185 | } else { | |
6186 | memset(buff, 0, iocommand.buf_size); | |
edd16368 | 6187 | } |
b03a7771 | 6188 | } |
45fcb86e | 6189 | c = cmd_alloc(h); |
bf43caf3 | 6190 | |
edd16368 SC |
6191 | /* Fill in the command type */ |
6192 | c->cmd_type = CMD_IOCTL_PEND; | |
a58e7e53 | 6193 | c->scsi_cmd = SCSI_CMD_BUSY; |
edd16368 SC |
6194 | /* Fill in Command Header */ |
6195 | c->Header.ReplyQueue = 0; /* unused in simple mode */ | |
6196 | if (iocommand.buf_size > 0) { /* buffer to fill */ | |
6197 | c->Header.SGList = 1; | |
50a0decf | 6198 | c->Header.SGTotal = cpu_to_le16(1); |
edd16368 SC |
6199 | } else { /* no buffers to fill */ |
6200 | c->Header.SGList = 0; | |
50a0decf | 6201 | c->Header.SGTotal = cpu_to_le16(0); |
edd16368 SC |
6202 | } |
6203 | memcpy(&c->Header.LUN, &iocommand.LUN_info, sizeof(c->Header.LUN)); | |
edd16368 SC |
6204 | |
6205 | /* Fill in Request block */ | |
6206 | memcpy(&c->Request, &iocommand.Request, | |
6207 | sizeof(c->Request)); | |
6208 | ||
6209 | /* Fill in the scatter gather information */ | |
6210 | if (iocommand.buf_size > 0) { | |
50a0decf | 6211 | temp64 = pci_map_single(h->pdev, buff, |
edd16368 | 6212 | iocommand.buf_size, PCI_DMA_BIDIRECTIONAL); |
50a0decf SC |
6213 | if (dma_mapping_error(&h->pdev->dev, (dma_addr_t) temp64)) { |
6214 | c->SG[0].Addr = cpu_to_le64(0); | |
6215 | c->SG[0].Len = cpu_to_le32(0); | |
bcc48ffa SC |
6216 | rc = -ENOMEM; |
6217 | goto out; | |
6218 | } | |
50a0decf SC |
6219 | c->SG[0].Addr = cpu_to_le64(temp64); |
6220 | c->SG[0].Len = cpu_to_le32(iocommand.buf_size); | |
6221 | c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */ | |
edd16368 | 6222 | } |
c448ecfa | 6223 | rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, |
3fb134cb | 6224 | NO_TIMEOUT); |
c2dd32e0 SC |
6225 | if (iocommand.buf_size > 0) |
6226 | hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL); | |
edd16368 | 6227 | check_ioctl_unit_attention(h, c); |
25163bd5 WS |
6228 | if (rc) { |
6229 | rc = -EIO; | |
6230 | goto out; | |
6231 | } | |
edd16368 SC |
6232 | |
6233 | /* Copy the error information out */ | |
6234 | memcpy(&iocommand.error_info, c->err_info, | |
6235 | sizeof(iocommand.error_info)); | |
6236 | if (copy_to_user(argp, &iocommand, sizeof(iocommand))) { | |
c1f63c8f SC |
6237 | rc = -EFAULT; |
6238 | goto out; | |
edd16368 | 6239 | } |
9233fb10 | 6240 | if ((iocommand.Request.Type.Direction & XFER_READ) && |
b03a7771 | 6241 | iocommand.buf_size > 0) { |
edd16368 SC |
6242 | /* Copy the data out of the buffer we created */ |
6243 | if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) { | |
c1f63c8f SC |
6244 | rc = -EFAULT; |
6245 | goto out; | |
edd16368 SC |
6246 | } |
6247 | } | |
c1f63c8f | 6248 | out: |
45fcb86e | 6249 | cmd_free(h, c); |
c1f63c8f SC |
6250 | out_kfree: |
6251 | kfree(buff); | |
6252 | return rc; | |
edd16368 SC |
6253 | } |
6254 | ||
6255 | static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) | |
6256 | { | |
6257 | BIG_IOCTL_Command_struct *ioc; | |
6258 | struct CommandList *c; | |
6259 | unsigned char **buff = NULL; | |
6260 | int *buff_size = NULL; | |
50a0decf | 6261 | u64 temp64; |
edd16368 SC |
6262 | BYTE sg_used = 0; |
6263 | int status = 0; | |
01a02ffc SC |
6264 | u32 left; |
6265 | u32 sz; | |
edd16368 SC |
6266 | BYTE __user *data_ptr; |
6267 | ||
6268 | if (!argp) | |
6269 | return -EINVAL; | |
6270 | if (!capable(CAP_SYS_RAWIO)) | |
6271 | return -EPERM; | |
19be606b | 6272 | ioc = kmalloc(sizeof(*ioc), GFP_KERNEL); |
edd16368 SC |
6273 | if (!ioc) { |
6274 | status = -ENOMEM; | |
6275 | goto cleanup1; | |
6276 | } | |
6277 | if (copy_from_user(ioc, argp, sizeof(*ioc))) { | |
6278 | status = -EFAULT; | |
6279 | goto cleanup1; | |
6280 | } | |
6281 | if ((ioc->buf_size < 1) && | |
6282 | (ioc->Request.Type.Direction != XFER_NONE)) { | |
6283 | status = -EINVAL; | |
6284 | goto cleanup1; | |
6285 | } | |
6286 | /* Check kmalloc limits using all SGs */ | |
6287 | if (ioc->malloc_size > MAX_KMALLOC_SIZE) { | |
6288 | status = -EINVAL; | |
6289 | goto cleanup1; | |
6290 | } | |
d66ae08b | 6291 | if (ioc->buf_size > ioc->malloc_size * SG_ENTRIES_IN_CMD) { |
edd16368 SC |
6292 | status = -EINVAL; |
6293 | goto cleanup1; | |
6294 | } | |
d66ae08b | 6295 | buff = kzalloc(SG_ENTRIES_IN_CMD * sizeof(char *), GFP_KERNEL); |
edd16368 SC |
6296 | if (!buff) { |
6297 | status = -ENOMEM; | |
6298 | goto cleanup1; | |
6299 | } | |
d66ae08b | 6300 | buff_size = kmalloc(SG_ENTRIES_IN_CMD * sizeof(int), GFP_KERNEL); |
edd16368 SC |
6301 | if (!buff_size) { |
6302 | status = -ENOMEM; | |
6303 | goto cleanup1; | |
6304 | } | |
6305 | left = ioc->buf_size; | |
6306 | data_ptr = ioc->buf; | |
6307 | while (left) { | |
6308 | sz = (left > ioc->malloc_size) ? ioc->malloc_size : left; | |
6309 | buff_size[sg_used] = sz; | |
6310 | buff[sg_used] = kmalloc(sz, GFP_KERNEL); | |
6311 | if (buff[sg_used] == NULL) { | |
6312 | status = -ENOMEM; | |
6313 | goto cleanup1; | |
6314 | } | |
9233fb10 | 6315 | if (ioc->Request.Type.Direction & XFER_WRITE) { |
edd16368 | 6316 | if (copy_from_user(buff[sg_used], data_ptr, sz)) { |
0758f4f7 | 6317 | status = -EFAULT; |
edd16368 SC |
6318 | goto cleanup1; |
6319 | } | |
6320 | } else | |
6321 | memset(buff[sg_used], 0, sz); | |
6322 | left -= sz; | |
6323 | data_ptr += sz; | |
6324 | sg_used++; | |
6325 | } | |
45fcb86e | 6326 | c = cmd_alloc(h); |
bf43caf3 | 6327 | |
edd16368 | 6328 | c->cmd_type = CMD_IOCTL_PEND; |
a58e7e53 | 6329 | c->scsi_cmd = SCSI_CMD_BUSY; |
edd16368 | 6330 | c->Header.ReplyQueue = 0; |
50a0decf SC |
6331 | c->Header.SGList = (u8) sg_used; |
6332 | c->Header.SGTotal = cpu_to_le16(sg_used); | |
edd16368 | 6333 | memcpy(&c->Header.LUN, &ioc->LUN_info, sizeof(c->Header.LUN)); |
edd16368 SC |
6334 | memcpy(&c->Request, &ioc->Request, sizeof(c->Request)); |
6335 | if (ioc->buf_size > 0) { | |
6336 | int i; | |
6337 | for (i = 0; i < sg_used; i++) { | |
50a0decf | 6338 | temp64 = pci_map_single(h->pdev, buff[i], |
edd16368 | 6339 | buff_size[i], PCI_DMA_BIDIRECTIONAL); |
50a0decf SC |
6340 | if (dma_mapping_error(&h->pdev->dev, |
6341 | (dma_addr_t) temp64)) { | |
6342 | c->SG[i].Addr = cpu_to_le64(0); | |
6343 | c->SG[i].Len = cpu_to_le32(0); | |
bcc48ffa SC |
6344 | hpsa_pci_unmap(h->pdev, c, i, |
6345 | PCI_DMA_BIDIRECTIONAL); | |
6346 | status = -ENOMEM; | |
e2d4a1f6 | 6347 | goto cleanup0; |
bcc48ffa | 6348 | } |
50a0decf SC |
6349 | c->SG[i].Addr = cpu_to_le64(temp64); |
6350 | c->SG[i].Len = cpu_to_le32(buff_size[i]); | |
6351 | c->SG[i].Ext = cpu_to_le32(0); | |
edd16368 | 6352 | } |
50a0decf | 6353 | c->SG[--i].Ext = cpu_to_le32(HPSA_SG_LAST); |
edd16368 | 6354 | } |
c448ecfa | 6355 | status = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, |
3fb134cb | 6356 | NO_TIMEOUT); |
b03a7771 SC |
6357 | if (sg_used) |
6358 | hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL); | |
edd16368 | 6359 | check_ioctl_unit_attention(h, c); |
25163bd5 WS |
6360 | if (status) { |
6361 | status = -EIO; | |
6362 | goto cleanup0; | |
6363 | } | |
6364 | ||
edd16368 SC |
6365 | /* Copy the error information out */ |
6366 | memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info)); | |
6367 | if (copy_to_user(argp, ioc, sizeof(*ioc))) { | |
edd16368 | 6368 | status = -EFAULT; |
e2d4a1f6 | 6369 | goto cleanup0; |
edd16368 | 6370 | } |
9233fb10 | 6371 | if ((ioc->Request.Type.Direction & XFER_READ) && ioc->buf_size > 0) { |
2b08b3e9 DB |
6372 | int i; |
6373 | ||
edd16368 SC |
6374 | /* Copy the data out of the buffer we created */ |
6375 | BYTE __user *ptr = ioc->buf; | |
6376 | for (i = 0; i < sg_used; i++) { | |
6377 | if (copy_to_user(ptr, buff[i], buff_size[i])) { | |
edd16368 | 6378 | status = -EFAULT; |
e2d4a1f6 | 6379 | goto cleanup0; |
edd16368 SC |
6380 | } |
6381 | ptr += buff_size[i]; | |
6382 | } | |
6383 | } | |
edd16368 | 6384 | status = 0; |
e2d4a1f6 | 6385 | cleanup0: |
45fcb86e | 6386 | cmd_free(h, c); |
edd16368 SC |
6387 | cleanup1: |
6388 | if (buff) { | |
2b08b3e9 DB |
6389 | int i; |
6390 | ||
edd16368 SC |
6391 | for (i = 0; i < sg_used; i++) |
6392 | kfree(buff[i]); | |
6393 | kfree(buff); | |
6394 | } | |
6395 | kfree(buff_size); | |
6396 | kfree(ioc); | |
6397 | return status; | |
6398 | } | |
6399 | ||
6400 | static void check_ioctl_unit_attention(struct ctlr_info *h, | |
6401 | struct CommandList *c) | |
6402 | { | |
6403 | if (c->err_info->CommandStatus == CMD_TARGET_STATUS && | |
6404 | c->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION) | |
6405 | (void) check_for_unit_attention(h, c); | |
6406 | } | |
0390f0c0 | 6407 | |
edd16368 SC |
6408 | /* |
6409 | * ioctl | |
6410 | */ | |
42a91641 | 6411 | static int hpsa_ioctl(struct scsi_device *dev, int cmd, void __user *arg) |
edd16368 SC |
6412 | { |
6413 | struct ctlr_info *h; | |
6414 | void __user *argp = (void __user *)arg; | |
0390f0c0 | 6415 | int rc; |
edd16368 SC |
6416 | |
6417 | h = sdev_to_hba(dev); | |
6418 | ||
6419 | switch (cmd) { | |
6420 | case CCISS_DEREGDISK: | |
6421 | case CCISS_REGNEWDISK: | |
6422 | case CCISS_REGNEWD: | |
a08a8471 | 6423 | hpsa_scan_start(h->scsi_host); |
edd16368 SC |
6424 | return 0; |
6425 | case CCISS_GETPCIINFO: | |
6426 | return hpsa_getpciinfo_ioctl(h, argp); | |
6427 | case CCISS_GETDRIVVER: | |
6428 | return hpsa_getdrivver_ioctl(h, argp); | |
6429 | case CCISS_PASSTHRU: | |
34f0c627 | 6430 | if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0) |
0390f0c0 SC |
6431 | return -EAGAIN; |
6432 | rc = hpsa_passthru_ioctl(h, argp); | |
34f0c627 | 6433 | atomic_inc(&h->passthru_cmds_avail); |
0390f0c0 | 6434 | return rc; |
edd16368 | 6435 | case CCISS_BIG_PASSTHRU: |
34f0c627 | 6436 | if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0) |
0390f0c0 SC |
6437 | return -EAGAIN; |
6438 | rc = hpsa_big_passthru_ioctl(h, argp); | |
34f0c627 | 6439 | atomic_inc(&h->passthru_cmds_avail); |
0390f0c0 | 6440 | return rc; |
edd16368 SC |
6441 | default: |
6442 | return -ENOTTY; | |
6443 | } | |
6444 | } | |
6445 | ||
bf43caf3 | 6446 | static void hpsa_send_host_reset(struct ctlr_info *h, unsigned char *scsi3addr, |
6f039790 | 6447 | u8 reset_type) |
64670ac8 SC |
6448 | { |
6449 | struct CommandList *c; | |
6450 | ||
6451 | c = cmd_alloc(h); | |
bf43caf3 | 6452 | |
a2dac136 SC |
6453 | /* fill_cmd can't fail here, no data buffer to map */ |
6454 | (void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0, | |
64670ac8 SC |
6455 | RAID_CTLR_LUNID, TYPE_MSG); |
6456 | c->Request.CDB[1] = reset_type; /* fill_cmd defaults to target reset */ | |
6457 | c->waiting = NULL; | |
6458 | enqueue_cmd_and_start_io(h, c); | |
6459 | /* Don't wait for completion, the reset won't complete. Don't free | |
6460 | * the command either. This is the last command we will send before | |
6461 | * re-initializing everything, so it doesn't matter and won't leak. | |
6462 | */ | |
bf43caf3 | 6463 | return; |
64670ac8 SC |
6464 | } |
6465 | ||
a2dac136 | 6466 | static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h, |
b7bb24eb | 6467 | void *buff, size_t size, u16 page_code, unsigned char *scsi3addr, |
edd16368 SC |
6468 | int cmd_type) |
6469 | { | |
6470 | int pci_dir = XFER_NONE; | |
6471 | ||
6472 | c->cmd_type = CMD_IOCTL_PEND; | |
a58e7e53 | 6473 | c->scsi_cmd = SCSI_CMD_BUSY; |
edd16368 SC |
6474 | c->Header.ReplyQueue = 0; |
6475 | if (buff != NULL && size > 0) { | |
6476 | c->Header.SGList = 1; | |
50a0decf | 6477 | c->Header.SGTotal = cpu_to_le16(1); |
edd16368 SC |
6478 | } else { |
6479 | c->Header.SGList = 0; | |
50a0decf | 6480 | c->Header.SGTotal = cpu_to_le16(0); |
edd16368 | 6481 | } |
edd16368 SC |
6482 | memcpy(c->Header.LUN.LunAddrBytes, scsi3addr, 8); |
6483 | ||
edd16368 SC |
6484 | if (cmd_type == TYPE_CMD) { |
6485 | switch (cmd) { | |
6486 | case HPSA_INQUIRY: | |
6487 | /* are we trying to read a vital product page */ | |
b7bb24eb | 6488 | if (page_code & VPD_PAGE) { |
edd16368 | 6489 | c->Request.CDB[1] = 0x01; |
b7bb24eb | 6490 | c->Request.CDB[2] = (page_code & 0xff); |
edd16368 SC |
6491 | } |
6492 | c->Request.CDBLen = 6; | |
a505b86f SC |
6493 | c->Request.type_attr_dir = |
6494 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
edd16368 SC |
6495 | c->Request.Timeout = 0; |
6496 | c->Request.CDB[0] = HPSA_INQUIRY; | |
6497 | c->Request.CDB[4] = size & 0xFF; | |
6498 | break; | |
6499 | case HPSA_REPORT_LOG: | |
6500 | case HPSA_REPORT_PHYS: | |
6501 | /* Talking to controller so It's a physical command | |
6502 | mode = 00 target = 0. Nothing to write. | |
6503 | */ | |
6504 | c->Request.CDBLen = 12; | |
a505b86f SC |
6505 | c->Request.type_attr_dir = |
6506 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
edd16368 SC |
6507 | c->Request.Timeout = 0; |
6508 | c->Request.CDB[0] = cmd; | |
6509 | c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */ | |
6510 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6511 | c->Request.CDB[8] = (size >> 8) & 0xFF; | |
6512 | c->Request.CDB[9] = size & 0xFF; | |
6513 | break; | |
c2adae44 ST |
6514 | case BMIC_SENSE_DIAG_OPTIONS: |
6515 | c->Request.CDBLen = 16; | |
6516 | c->Request.type_attr_dir = | |
6517 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
6518 | c->Request.Timeout = 0; | |
6519 | /* Spec says this should be BMIC_WRITE */ | |
6520 | c->Request.CDB[0] = BMIC_READ; | |
6521 | c->Request.CDB[6] = BMIC_SENSE_DIAG_OPTIONS; | |
6522 | break; | |
6523 | case BMIC_SET_DIAG_OPTIONS: | |
6524 | c->Request.CDBLen = 16; | |
6525 | c->Request.type_attr_dir = | |
6526 | TYPE_ATTR_DIR(cmd_type, | |
6527 | ATTR_SIMPLE, XFER_WRITE); | |
6528 | c->Request.Timeout = 0; | |
6529 | c->Request.CDB[0] = BMIC_WRITE; | |
6530 | c->Request.CDB[6] = BMIC_SET_DIAG_OPTIONS; | |
6531 | break; | |
edd16368 SC |
6532 | case HPSA_CACHE_FLUSH: |
6533 | c->Request.CDBLen = 12; | |
a505b86f SC |
6534 | c->Request.type_attr_dir = |
6535 | TYPE_ATTR_DIR(cmd_type, | |
6536 | ATTR_SIMPLE, XFER_WRITE); | |
edd16368 SC |
6537 | c->Request.Timeout = 0; |
6538 | c->Request.CDB[0] = BMIC_WRITE; | |
6539 | c->Request.CDB[6] = BMIC_CACHE_FLUSH; | |
bb158eab SC |
6540 | c->Request.CDB[7] = (size >> 8) & 0xFF; |
6541 | c->Request.CDB[8] = size & 0xFF; | |
edd16368 SC |
6542 | break; |
6543 | case TEST_UNIT_READY: | |
6544 | c->Request.CDBLen = 6; | |
a505b86f SC |
6545 | c->Request.type_attr_dir = |
6546 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE); | |
edd16368 SC |
6547 | c->Request.Timeout = 0; |
6548 | break; | |
283b4a9b SC |
6549 | case HPSA_GET_RAID_MAP: |
6550 | c->Request.CDBLen = 12; | |
a505b86f SC |
6551 | c->Request.type_attr_dir = |
6552 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
283b4a9b SC |
6553 | c->Request.Timeout = 0; |
6554 | c->Request.CDB[0] = HPSA_CISS_READ; | |
6555 | c->Request.CDB[1] = cmd; | |
6556 | c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */ | |
6557 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6558 | c->Request.CDB[8] = (size >> 8) & 0xFF; | |
6559 | c->Request.CDB[9] = size & 0xFF; | |
6560 | break; | |
316b221a SC |
6561 | case BMIC_SENSE_CONTROLLER_PARAMETERS: |
6562 | c->Request.CDBLen = 10; | |
a505b86f SC |
6563 | c->Request.type_attr_dir = |
6564 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
316b221a SC |
6565 | c->Request.Timeout = 0; |
6566 | c->Request.CDB[0] = BMIC_READ; | |
6567 | c->Request.CDB[6] = BMIC_SENSE_CONTROLLER_PARAMETERS; | |
6568 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6569 | c->Request.CDB[8] = (size >> 8) & 0xFF; | |
6570 | break; | |
03383736 DB |
6571 | case BMIC_IDENTIFY_PHYSICAL_DEVICE: |
6572 | c->Request.CDBLen = 10; | |
6573 | c->Request.type_attr_dir = | |
6574 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
6575 | c->Request.Timeout = 0; | |
6576 | c->Request.CDB[0] = BMIC_READ; | |
6577 | c->Request.CDB[6] = BMIC_IDENTIFY_PHYSICAL_DEVICE; | |
6578 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6579 | c->Request.CDB[8] = (size >> 8) & 0XFF; | |
6580 | break; | |
d04e62b9 KB |
6581 | case BMIC_SENSE_SUBSYSTEM_INFORMATION: |
6582 | c->Request.CDBLen = 10; | |
6583 | c->Request.type_attr_dir = | |
6584 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
6585 | c->Request.Timeout = 0; | |
6586 | c->Request.CDB[0] = BMIC_READ; | |
6587 | c->Request.CDB[6] = BMIC_SENSE_SUBSYSTEM_INFORMATION; | |
6588 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6589 | c->Request.CDB[8] = (size >> 8) & 0XFF; | |
6590 | break; | |
cca8f13b DB |
6591 | case BMIC_SENSE_STORAGE_BOX_PARAMS: |
6592 | c->Request.CDBLen = 10; | |
6593 | c->Request.type_attr_dir = | |
6594 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
6595 | c->Request.Timeout = 0; | |
6596 | c->Request.CDB[0] = BMIC_READ; | |
6597 | c->Request.CDB[6] = BMIC_SENSE_STORAGE_BOX_PARAMS; | |
6598 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6599 | c->Request.CDB[8] = (size >> 8) & 0XFF; | |
6600 | break; | |
66749d0d ST |
6601 | case BMIC_IDENTIFY_CONTROLLER: |
6602 | c->Request.CDBLen = 10; | |
6603 | c->Request.type_attr_dir = | |
6604 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
6605 | c->Request.Timeout = 0; | |
6606 | c->Request.CDB[0] = BMIC_READ; | |
6607 | c->Request.CDB[1] = 0; | |
6608 | c->Request.CDB[2] = 0; | |
6609 | c->Request.CDB[3] = 0; | |
6610 | c->Request.CDB[4] = 0; | |
6611 | c->Request.CDB[5] = 0; | |
6612 | c->Request.CDB[6] = BMIC_IDENTIFY_CONTROLLER; | |
6613 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6614 | c->Request.CDB[8] = (size >> 8) & 0XFF; | |
6615 | c->Request.CDB[9] = 0; | |
6616 | break; | |
edd16368 SC |
6617 | default: |
6618 | dev_warn(&h->pdev->dev, "unknown command 0x%c\n", cmd); | |
6619 | BUG(); | |
edd16368 SC |
6620 | } |
6621 | } else if (cmd_type == TYPE_MSG) { | |
6622 | switch (cmd) { | |
6623 | ||
0b9b7b6e ST |
6624 | case HPSA_PHYS_TARGET_RESET: |
6625 | c->Request.CDBLen = 16; | |
6626 | c->Request.type_attr_dir = | |
6627 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE); | |
6628 | c->Request.Timeout = 0; /* Don't time out */ | |
6629 | memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB)); | |
6630 | c->Request.CDB[0] = HPSA_RESET; | |
6631 | c->Request.CDB[1] = HPSA_TARGET_RESET_TYPE; | |
6632 | /* Physical target reset needs no control bytes 4-7*/ | |
6633 | c->Request.CDB[4] = 0x00; | |
6634 | c->Request.CDB[5] = 0x00; | |
6635 | c->Request.CDB[6] = 0x00; | |
6636 | c->Request.CDB[7] = 0x00; | |
6637 | break; | |
edd16368 SC |
6638 | case HPSA_DEVICE_RESET_MSG: |
6639 | c->Request.CDBLen = 16; | |
a505b86f SC |
6640 | c->Request.type_attr_dir = |
6641 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE); | |
edd16368 | 6642 | c->Request.Timeout = 0; /* Don't time out */ |
64670ac8 SC |
6643 | memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB)); |
6644 | c->Request.CDB[0] = cmd; | |
21e89afd | 6645 | c->Request.CDB[1] = HPSA_RESET_TYPE_LUN; |
edd16368 SC |
6646 | /* If bytes 4-7 are zero, it means reset the */ |
6647 | /* LunID device */ | |
6648 | c->Request.CDB[4] = 0x00; | |
6649 | c->Request.CDB[5] = 0x00; | |
6650 | c->Request.CDB[6] = 0x00; | |
6651 | c->Request.CDB[7] = 0x00; | |
75167d2c | 6652 | break; |
edd16368 SC |
6653 | default: |
6654 | dev_warn(&h->pdev->dev, "unknown message type %d\n", | |
6655 | cmd); | |
6656 | BUG(); | |
6657 | } | |
6658 | } else { | |
6659 | dev_warn(&h->pdev->dev, "unknown command type %d\n", cmd_type); | |
6660 | BUG(); | |
6661 | } | |
6662 | ||
a505b86f | 6663 | switch (GET_DIR(c->Request.type_attr_dir)) { |
edd16368 SC |
6664 | case XFER_READ: |
6665 | pci_dir = PCI_DMA_FROMDEVICE; | |
6666 | break; | |
6667 | case XFER_WRITE: | |
6668 | pci_dir = PCI_DMA_TODEVICE; | |
6669 | break; | |
6670 | case XFER_NONE: | |
6671 | pci_dir = PCI_DMA_NONE; | |
6672 | break; | |
6673 | default: | |
6674 | pci_dir = PCI_DMA_BIDIRECTIONAL; | |
6675 | } | |
a2dac136 SC |
6676 | if (hpsa_map_one(h->pdev, c, buff, size, pci_dir)) |
6677 | return -1; | |
6678 | return 0; | |
edd16368 SC |
6679 | } |
6680 | ||
6681 | /* | |
6682 | * Map (physical) PCI mem into (virtual) kernel space | |
6683 | */ | |
6684 | static void __iomem *remap_pci_mem(ulong base, ulong size) | |
6685 | { | |
6686 | ulong page_base = ((ulong) base) & PAGE_MASK; | |
6687 | ulong page_offs = ((ulong) base) - page_base; | |
088ba34c SC |
6688 | void __iomem *page_remapped = ioremap_nocache(page_base, |
6689 | page_offs + size); | |
edd16368 SC |
6690 | |
6691 | return page_remapped ? (page_remapped + page_offs) : NULL; | |
6692 | } | |
6693 | ||
254f796b | 6694 | static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q) |
edd16368 | 6695 | { |
254f796b | 6696 | return h->access.command_completed(h, q); |
edd16368 SC |
6697 | } |
6698 | ||
900c5440 | 6699 | static inline bool interrupt_pending(struct ctlr_info *h) |
edd16368 SC |
6700 | { |
6701 | return h->access.intr_pending(h); | |
6702 | } | |
6703 | ||
6704 | static inline long interrupt_not_for_us(struct ctlr_info *h) | |
6705 | { | |
10f66018 SC |
6706 | return (h->access.intr_pending(h) == 0) || |
6707 | (h->interrupts_enabled == 0); | |
edd16368 SC |
6708 | } |
6709 | ||
01a02ffc SC |
6710 | static inline int bad_tag(struct ctlr_info *h, u32 tag_index, |
6711 | u32 raw_tag) | |
edd16368 SC |
6712 | { |
6713 | if (unlikely(tag_index >= h->nr_cmds)) { | |
6714 | dev_warn(&h->pdev->dev, "bad tag 0x%08x ignored.\n", raw_tag); | |
6715 | return 1; | |
6716 | } | |
6717 | return 0; | |
6718 | } | |
6719 | ||
5a3d16f5 | 6720 | static inline void finish_cmd(struct CommandList *c) |
edd16368 | 6721 | { |
e85c5974 | 6722 | dial_up_lockup_detection_on_fw_flash_complete(c->h, c); |
c349775e ST |
6723 | if (likely(c->cmd_type == CMD_IOACCEL1 || c->cmd_type == CMD_SCSI |
6724 | || c->cmd_type == CMD_IOACCEL2)) | |
1fb011fb | 6725 | complete_scsi_command(c); |
8be986cc | 6726 | else if (c->cmd_type == CMD_IOCTL_PEND || c->cmd_type == IOACCEL2_TMF) |
edd16368 | 6727 | complete(c->waiting); |
a104c99f SC |
6728 | } |
6729 | ||
303932fd | 6730 | /* process completion of an indexed ("direct lookup") command */ |
1d94f94d | 6731 | static inline void process_indexed_cmd(struct ctlr_info *h, |
303932fd DB |
6732 | u32 raw_tag) |
6733 | { | |
6734 | u32 tag_index; | |
6735 | struct CommandList *c; | |
6736 | ||
f2405db8 | 6737 | tag_index = raw_tag >> DIRECT_LOOKUP_SHIFT; |
1d94f94d SC |
6738 | if (!bad_tag(h, tag_index, raw_tag)) { |
6739 | c = h->cmd_pool + tag_index; | |
6740 | finish_cmd(c); | |
6741 | } | |
303932fd DB |
6742 | } |
6743 | ||
64670ac8 SC |
6744 | /* Some controllers, like p400, will give us one interrupt |
6745 | * after a soft reset, even if we turned interrupts off. | |
6746 | * Only need to check for this in the hpsa_xxx_discard_completions | |
6747 | * functions. | |
6748 | */ | |
6749 | static int ignore_bogus_interrupt(struct ctlr_info *h) | |
6750 | { | |
6751 | if (likely(!reset_devices)) | |
6752 | return 0; | |
6753 | ||
6754 | if (likely(h->interrupts_enabled)) | |
6755 | return 0; | |
6756 | ||
6757 | dev_info(&h->pdev->dev, "Received interrupt while interrupts disabled " | |
6758 | "(known firmware bug.) Ignoring.\n"); | |
6759 | ||
6760 | return 1; | |
6761 | } | |
6762 | ||
254f796b MG |
6763 | /* |
6764 | * Convert &h->q[x] (passed to interrupt handlers) back to h. | |
6765 | * Relies on (h-q[x] == x) being true for x such that | |
6766 | * 0 <= x < MAX_REPLY_QUEUES. | |
6767 | */ | |
6768 | static struct ctlr_info *queue_to_hba(u8 *queue) | |
64670ac8 | 6769 | { |
254f796b MG |
6770 | return container_of((queue - *queue), struct ctlr_info, q[0]); |
6771 | } | |
6772 | ||
6773 | static irqreturn_t hpsa_intx_discard_completions(int irq, void *queue) | |
6774 | { | |
6775 | struct ctlr_info *h = queue_to_hba(queue); | |
6776 | u8 q = *(u8 *) queue; | |
64670ac8 SC |
6777 | u32 raw_tag; |
6778 | ||
6779 | if (ignore_bogus_interrupt(h)) | |
6780 | return IRQ_NONE; | |
6781 | ||
6782 | if (interrupt_not_for_us(h)) | |
6783 | return IRQ_NONE; | |
a0c12413 | 6784 | h->last_intr_timestamp = get_jiffies_64(); |
64670ac8 | 6785 | while (interrupt_pending(h)) { |
254f796b | 6786 | raw_tag = get_next_completion(h, q); |
64670ac8 | 6787 | while (raw_tag != FIFO_EMPTY) |
254f796b | 6788 | raw_tag = next_command(h, q); |
64670ac8 | 6789 | } |
64670ac8 SC |
6790 | return IRQ_HANDLED; |
6791 | } | |
6792 | ||
254f796b | 6793 | static irqreturn_t hpsa_msix_discard_completions(int irq, void *queue) |
64670ac8 | 6794 | { |
254f796b | 6795 | struct ctlr_info *h = queue_to_hba(queue); |
64670ac8 | 6796 | u32 raw_tag; |
254f796b | 6797 | u8 q = *(u8 *) queue; |
64670ac8 SC |
6798 | |
6799 | if (ignore_bogus_interrupt(h)) | |
6800 | return IRQ_NONE; | |
6801 | ||
a0c12413 | 6802 | h->last_intr_timestamp = get_jiffies_64(); |
254f796b | 6803 | raw_tag = get_next_completion(h, q); |
64670ac8 | 6804 | while (raw_tag != FIFO_EMPTY) |
254f796b | 6805 | raw_tag = next_command(h, q); |
64670ac8 SC |
6806 | return IRQ_HANDLED; |
6807 | } | |
6808 | ||
254f796b | 6809 | static irqreturn_t do_hpsa_intr_intx(int irq, void *queue) |
edd16368 | 6810 | { |
254f796b | 6811 | struct ctlr_info *h = queue_to_hba((u8 *) queue); |
303932fd | 6812 | u32 raw_tag; |
254f796b | 6813 | u8 q = *(u8 *) queue; |
edd16368 SC |
6814 | |
6815 | if (interrupt_not_for_us(h)) | |
6816 | return IRQ_NONE; | |
a0c12413 | 6817 | h->last_intr_timestamp = get_jiffies_64(); |
10f66018 | 6818 | while (interrupt_pending(h)) { |
254f796b | 6819 | raw_tag = get_next_completion(h, q); |
10f66018 | 6820 | while (raw_tag != FIFO_EMPTY) { |
f2405db8 | 6821 | process_indexed_cmd(h, raw_tag); |
254f796b | 6822 | raw_tag = next_command(h, q); |
10f66018 SC |
6823 | } |
6824 | } | |
10f66018 SC |
6825 | return IRQ_HANDLED; |
6826 | } | |
6827 | ||
254f796b | 6828 | static irqreturn_t do_hpsa_intr_msi(int irq, void *queue) |
10f66018 | 6829 | { |
254f796b | 6830 | struct ctlr_info *h = queue_to_hba(queue); |
10f66018 | 6831 | u32 raw_tag; |
254f796b | 6832 | u8 q = *(u8 *) queue; |
10f66018 | 6833 | |
a0c12413 | 6834 | h->last_intr_timestamp = get_jiffies_64(); |
254f796b | 6835 | raw_tag = get_next_completion(h, q); |
303932fd | 6836 | while (raw_tag != FIFO_EMPTY) { |
f2405db8 | 6837 | process_indexed_cmd(h, raw_tag); |
254f796b | 6838 | raw_tag = next_command(h, q); |
edd16368 | 6839 | } |
edd16368 SC |
6840 | return IRQ_HANDLED; |
6841 | } | |
6842 | ||
a9a3a273 SC |
6843 | /* Send a message CDB to the firmware. Careful, this only works |
6844 | * in simple mode, not performant mode due to the tag lookup. | |
6845 | * We only ever use this immediately after a controller reset. | |
6846 | */ | |
6f039790 GKH |
6847 | static int hpsa_message(struct pci_dev *pdev, unsigned char opcode, |
6848 | unsigned char type) | |
edd16368 SC |
6849 | { |
6850 | struct Command { | |
6851 | struct CommandListHeader CommandHeader; | |
6852 | struct RequestBlock Request; | |
6853 | struct ErrDescriptor ErrorDescriptor; | |
6854 | }; | |
6855 | struct Command *cmd; | |
6856 | static const size_t cmd_sz = sizeof(*cmd) + | |
6857 | sizeof(cmd->ErrorDescriptor); | |
6858 | dma_addr_t paddr64; | |
2b08b3e9 DB |
6859 | __le32 paddr32; |
6860 | u32 tag; | |
edd16368 SC |
6861 | void __iomem *vaddr; |
6862 | int i, err; | |
6863 | ||
6864 | vaddr = pci_ioremap_bar(pdev, 0); | |
6865 | if (vaddr == NULL) | |
6866 | return -ENOMEM; | |
6867 | ||
6868 | /* The Inbound Post Queue only accepts 32-bit physical addresses for the | |
6869 | * CCISS commands, so they must be allocated from the lower 4GiB of | |
6870 | * memory. | |
6871 | */ | |
6872 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); | |
6873 | if (err) { | |
6874 | iounmap(vaddr); | |
1eaec8f3 | 6875 | return err; |
edd16368 SC |
6876 | } |
6877 | ||
6878 | cmd = pci_alloc_consistent(pdev, cmd_sz, &paddr64); | |
6879 | if (cmd == NULL) { | |
6880 | iounmap(vaddr); | |
6881 | return -ENOMEM; | |
6882 | } | |
6883 | ||
6884 | /* This must fit, because of the 32-bit consistent DMA mask. Also, | |
6885 | * although there's no guarantee, we assume that the address is at | |
6886 | * least 4-byte aligned (most likely, it's page-aligned). | |
6887 | */ | |
2b08b3e9 | 6888 | paddr32 = cpu_to_le32(paddr64); |
edd16368 SC |
6889 | |
6890 | cmd->CommandHeader.ReplyQueue = 0; | |
6891 | cmd->CommandHeader.SGList = 0; | |
50a0decf | 6892 | cmd->CommandHeader.SGTotal = cpu_to_le16(0); |
2b08b3e9 | 6893 | cmd->CommandHeader.tag = cpu_to_le64(paddr64); |
edd16368 SC |
6894 | memset(&cmd->CommandHeader.LUN.LunAddrBytes, 0, 8); |
6895 | ||
6896 | cmd->Request.CDBLen = 16; | |
a505b86f SC |
6897 | cmd->Request.type_attr_dir = |
6898 | TYPE_ATTR_DIR(TYPE_MSG, ATTR_HEADOFQUEUE, XFER_NONE); | |
edd16368 SC |
6899 | cmd->Request.Timeout = 0; /* Don't time out */ |
6900 | cmd->Request.CDB[0] = opcode; | |
6901 | cmd->Request.CDB[1] = type; | |
6902 | memset(&cmd->Request.CDB[2], 0, 14); /* rest of the CDB is reserved */ | |
50a0decf | 6903 | cmd->ErrorDescriptor.Addr = |
2b08b3e9 | 6904 | cpu_to_le64((le32_to_cpu(paddr32) + sizeof(*cmd))); |
50a0decf | 6905 | cmd->ErrorDescriptor.Len = cpu_to_le32(sizeof(struct ErrorInfo)); |
edd16368 | 6906 | |
2b08b3e9 | 6907 | writel(le32_to_cpu(paddr32), vaddr + SA5_REQUEST_PORT_OFFSET); |
edd16368 SC |
6908 | |
6909 | for (i = 0; i < HPSA_MSG_SEND_RETRY_LIMIT; i++) { | |
6910 | tag = readl(vaddr + SA5_REPLY_PORT_OFFSET); | |
2b08b3e9 | 6911 | if ((tag & ~HPSA_SIMPLE_ERROR_BITS) == paddr64) |
edd16368 SC |
6912 | break; |
6913 | msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS); | |
6914 | } | |
6915 | ||
6916 | iounmap(vaddr); | |
6917 | ||
6918 | /* we leak the DMA buffer here ... no choice since the controller could | |
6919 | * still complete the command. | |
6920 | */ | |
6921 | if (i == HPSA_MSG_SEND_RETRY_LIMIT) { | |
6922 | dev_err(&pdev->dev, "controller message %02x:%02x timed out\n", | |
6923 | opcode, type); | |
6924 | return -ETIMEDOUT; | |
6925 | } | |
6926 | ||
6927 | pci_free_consistent(pdev, cmd_sz, cmd, paddr64); | |
6928 | ||
6929 | if (tag & HPSA_ERROR_BIT) { | |
6930 | dev_err(&pdev->dev, "controller message %02x:%02x failed\n", | |
6931 | opcode, type); | |
6932 | return -EIO; | |
6933 | } | |
6934 | ||
6935 | dev_info(&pdev->dev, "controller message %02x:%02x succeeded\n", | |
6936 | opcode, type); | |
6937 | return 0; | |
6938 | } | |
6939 | ||
edd16368 SC |
6940 | #define hpsa_noop(p) hpsa_message(p, 3, 0) |
6941 | ||
1df8552a | 6942 | static int hpsa_controller_hard_reset(struct pci_dev *pdev, |
42a91641 | 6943 | void __iomem *vaddr, u32 use_doorbell) |
1df8552a | 6944 | { |
1df8552a SC |
6945 | |
6946 | if (use_doorbell) { | |
6947 | /* For everything after the P600, the PCI power state method | |
6948 | * of resetting the controller doesn't work, so we have this | |
6949 | * other way using the doorbell register. | |
6950 | */ | |
6951 | dev_info(&pdev->dev, "using doorbell to reset controller\n"); | |
cf0b08d0 | 6952 | writel(use_doorbell, vaddr + SA5_DOORBELL); |
85009239 | 6953 | |
00701a96 | 6954 | /* PMC hardware guys tell us we need a 10 second delay after |
85009239 SC |
6955 | * doorbell reset and before any attempt to talk to the board |
6956 | * at all to ensure that this actually works and doesn't fall | |
6957 | * over in some weird corner cases. | |
6958 | */ | |
00701a96 | 6959 | msleep(10000); |
1df8552a SC |
6960 | } else { /* Try to do it the PCI power state way */ |
6961 | ||
6962 | /* Quoting from the Open CISS Specification: "The Power | |
6963 | * Management Control/Status Register (CSR) controls the power | |
6964 | * state of the device. The normal operating state is D0, | |
6965 | * CSR=00h. The software off state is D3, CSR=03h. To reset | |
6966 | * the controller, place the interface device in D3 then to D0, | |
6967 | * this causes a secondary PCI reset which will reset the | |
6968 | * controller." */ | |
2662cab8 DB |
6969 | |
6970 | int rc = 0; | |
6971 | ||
1df8552a | 6972 | dev_info(&pdev->dev, "using PCI PM to reset controller\n"); |
2662cab8 | 6973 | |
1df8552a | 6974 | /* enter the D3hot power management state */ |
2662cab8 DB |
6975 | rc = pci_set_power_state(pdev, PCI_D3hot); |
6976 | if (rc) | |
6977 | return rc; | |
1df8552a SC |
6978 | |
6979 | msleep(500); | |
6980 | ||
6981 | /* enter the D0 power management state */ | |
2662cab8 DB |
6982 | rc = pci_set_power_state(pdev, PCI_D0); |
6983 | if (rc) | |
6984 | return rc; | |
c4853efe MM |
6985 | |
6986 | /* | |
6987 | * The P600 requires a small delay when changing states. | |
6988 | * Otherwise we may think the board did not reset and we bail. | |
6989 | * This for kdump only and is particular to the P600. | |
6990 | */ | |
6991 | msleep(500); | |
1df8552a SC |
6992 | } |
6993 | return 0; | |
6994 | } | |
6995 | ||
6f039790 | 6996 | static void init_driver_version(char *driver_version, int len) |
580ada3c SC |
6997 | { |
6998 | memset(driver_version, 0, len); | |
f79cfec6 | 6999 | strncpy(driver_version, HPSA " " HPSA_DRIVER_VERSION, len - 1); |
580ada3c SC |
7000 | } |
7001 | ||
6f039790 | 7002 | static int write_driver_ver_to_cfgtable(struct CfgTable __iomem *cfgtable) |
580ada3c SC |
7003 | { |
7004 | char *driver_version; | |
7005 | int i, size = sizeof(cfgtable->driver_version); | |
7006 | ||
7007 | driver_version = kmalloc(size, GFP_KERNEL); | |
7008 | if (!driver_version) | |
7009 | return -ENOMEM; | |
7010 | ||
7011 | init_driver_version(driver_version, size); | |
7012 | for (i = 0; i < size; i++) | |
7013 | writeb(driver_version[i], &cfgtable->driver_version[i]); | |
7014 | kfree(driver_version); | |
7015 | return 0; | |
7016 | } | |
7017 | ||
6f039790 GKH |
7018 | static void read_driver_ver_from_cfgtable(struct CfgTable __iomem *cfgtable, |
7019 | unsigned char *driver_ver) | |
580ada3c SC |
7020 | { |
7021 | int i; | |
7022 | ||
7023 | for (i = 0; i < sizeof(cfgtable->driver_version); i++) | |
7024 | driver_ver[i] = readb(&cfgtable->driver_version[i]); | |
7025 | } | |
7026 | ||
6f039790 | 7027 | static int controller_reset_failed(struct CfgTable __iomem *cfgtable) |
580ada3c SC |
7028 | { |
7029 | ||
7030 | char *driver_ver, *old_driver_ver; | |
7031 | int rc, size = sizeof(cfgtable->driver_version); | |
7032 | ||
7033 | old_driver_ver = kmalloc(2 * size, GFP_KERNEL); | |
7034 | if (!old_driver_ver) | |
7035 | return -ENOMEM; | |
7036 | driver_ver = old_driver_ver + size; | |
7037 | ||
7038 | /* After a reset, the 32 bytes of "driver version" in the cfgtable | |
7039 | * should have been changed, otherwise we know the reset failed. | |
7040 | */ | |
7041 | init_driver_version(old_driver_ver, size); | |
7042 | read_driver_ver_from_cfgtable(cfgtable, driver_ver); | |
7043 | rc = !memcmp(driver_ver, old_driver_ver, size); | |
7044 | kfree(old_driver_ver); | |
7045 | return rc; | |
7046 | } | |
edd16368 | 7047 | /* This does a hard reset of the controller using PCI power management |
1df8552a | 7048 | * states or the using the doorbell register. |
edd16368 | 7049 | */ |
6b6c1cd7 | 7050 | static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev, u32 board_id) |
edd16368 | 7051 | { |
1df8552a SC |
7052 | u64 cfg_offset; |
7053 | u32 cfg_base_addr; | |
7054 | u64 cfg_base_addr_index; | |
7055 | void __iomem *vaddr; | |
7056 | unsigned long paddr; | |
580ada3c | 7057 | u32 misc_fw_support; |
270d05de | 7058 | int rc; |
1df8552a | 7059 | struct CfgTable __iomem *cfgtable; |
cf0b08d0 | 7060 | u32 use_doorbell; |
270d05de | 7061 | u16 command_register; |
edd16368 | 7062 | |
1df8552a SC |
7063 | /* For controllers as old as the P600, this is very nearly |
7064 | * the same thing as | |
edd16368 SC |
7065 | * |
7066 | * pci_save_state(pci_dev); | |
7067 | * pci_set_power_state(pci_dev, PCI_D3hot); | |
7068 | * pci_set_power_state(pci_dev, PCI_D0); | |
7069 | * pci_restore_state(pci_dev); | |
7070 | * | |
1df8552a SC |
7071 | * For controllers newer than the P600, the pci power state |
7072 | * method of resetting doesn't work so we have another way | |
7073 | * using the doorbell register. | |
edd16368 | 7074 | */ |
18867659 | 7075 | |
60f923b9 RE |
7076 | if (!ctlr_is_resettable(board_id)) { |
7077 | dev_warn(&pdev->dev, "Controller not resettable\n"); | |
25c1e56a SC |
7078 | return -ENODEV; |
7079 | } | |
46380786 SC |
7080 | |
7081 | /* if controller is soft- but not hard resettable... */ | |
7082 | if (!ctlr_is_hard_resettable(board_id)) | |
7083 | return -ENOTSUPP; /* try soft reset later. */ | |
18867659 | 7084 | |
270d05de SC |
7085 | /* Save the PCI command register */ |
7086 | pci_read_config_word(pdev, 4, &command_register); | |
270d05de | 7087 | pci_save_state(pdev); |
edd16368 | 7088 | |
1df8552a SC |
7089 | /* find the first memory BAR, so we can find the cfg table */ |
7090 | rc = hpsa_pci_find_memory_BAR(pdev, &paddr); | |
7091 | if (rc) | |
7092 | return rc; | |
7093 | vaddr = remap_pci_mem(paddr, 0x250); | |
7094 | if (!vaddr) | |
7095 | return -ENOMEM; | |
edd16368 | 7096 | |
1df8552a SC |
7097 | /* find cfgtable in order to check if reset via doorbell is supported */ |
7098 | rc = hpsa_find_cfg_addrs(pdev, vaddr, &cfg_base_addr, | |
7099 | &cfg_base_addr_index, &cfg_offset); | |
7100 | if (rc) | |
7101 | goto unmap_vaddr; | |
7102 | cfgtable = remap_pci_mem(pci_resource_start(pdev, | |
7103 | cfg_base_addr_index) + cfg_offset, sizeof(*cfgtable)); | |
7104 | if (!cfgtable) { | |
7105 | rc = -ENOMEM; | |
7106 | goto unmap_vaddr; | |
7107 | } | |
580ada3c SC |
7108 | rc = write_driver_ver_to_cfgtable(cfgtable); |
7109 | if (rc) | |
03741d95 | 7110 | goto unmap_cfgtable; |
edd16368 | 7111 | |
cf0b08d0 SC |
7112 | /* If reset via doorbell register is supported, use that. |
7113 | * There are two such methods. Favor the newest method. | |
7114 | */ | |
1df8552a | 7115 | misc_fw_support = readl(&cfgtable->misc_fw_support); |
cf0b08d0 SC |
7116 | use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET2; |
7117 | if (use_doorbell) { | |
7118 | use_doorbell = DOORBELL_CTLR_RESET2; | |
7119 | } else { | |
7120 | use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET; | |
7121 | if (use_doorbell) { | |
050f7147 SC |
7122 | dev_warn(&pdev->dev, |
7123 | "Soft reset not supported. Firmware update is required.\n"); | |
64670ac8 | 7124 | rc = -ENOTSUPP; /* try soft reset */ |
cf0b08d0 SC |
7125 | goto unmap_cfgtable; |
7126 | } | |
7127 | } | |
edd16368 | 7128 | |
1df8552a SC |
7129 | rc = hpsa_controller_hard_reset(pdev, vaddr, use_doorbell); |
7130 | if (rc) | |
7131 | goto unmap_cfgtable; | |
edd16368 | 7132 | |
270d05de | 7133 | pci_restore_state(pdev); |
270d05de | 7134 | pci_write_config_word(pdev, 4, command_register); |
edd16368 | 7135 | |
1df8552a SC |
7136 | /* Some devices (notably the HP Smart Array 5i Controller) |
7137 | need a little pause here */ | |
7138 | msleep(HPSA_POST_RESET_PAUSE_MSECS); | |
7139 | ||
fe5389c8 SC |
7140 | rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_READY); |
7141 | if (rc) { | |
7142 | dev_warn(&pdev->dev, | |
050f7147 | 7143 | "Failed waiting for board to become ready after hard reset\n"); |
fe5389c8 SC |
7144 | goto unmap_cfgtable; |
7145 | } | |
fe5389c8 | 7146 | |
580ada3c SC |
7147 | rc = controller_reset_failed(vaddr); |
7148 | if (rc < 0) | |
7149 | goto unmap_cfgtable; | |
7150 | if (rc) { | |
64670ac8 SC |
7151 | dev_warn(&pdev->dev, "Unable to successfully reset " |
7152 | "controller. Will try soft reset.\n"); | |
7153 | rc = -ENOTSUPP; | |
580ada3c | 7154 | } else { |
64670ac8 | 7155 | dev_info(&pdev->dev, "board ready after hard reset.\n"); |
1df8552a SC |
7156 | } |
7157 | ||
7158 | unmap_cfgtable: | |
7159 | iounmap(cfgtable); | |
7160 | ||
7161 | unmap_vaddr: | |
7162 | iounmap(vaddr); | |
7163 | return rc; | |
edd16368 SC |
7164 | } |
7165 | ||
7166 | /* | |
7167 | * We cannot read the structure directly, for portability we must use | |
7168 | * the io functions. | |
7169 | * This is for debug only. | |
7170 | */ | |
42a91641 | 7171 | static void print_cfg_table(struct device *dev, struct CfgTable __iomem *tb) |
edd16368 | 7172 | { |
58f8665c | 7173 | #ifdef HPSA_DEBUG |
edd16368 SC |
7174 | int i; |
7175 | char temp_name[17]; | |
7176 | ||
7177 | dev_info(dev, "Controller Configuration information\n"); | |
7178 | dev_info(dev, "------------------------------------\n"); | |
7179 | for (i = 0; i < 4; i++) | |
7180 | temp_name[i] = readb(&(tb->Signature[i])); | |
7181 | temp_name[4] = '\0'; | |
7182 | dev_info(dev, " Signature = %s\n", temp_name); | |
7183 | dev_info(dev, " Spec Number = %d\n", readl(&(tb->SpecValence))); | |
7184 | dev_info(dev, " Transport methods supported = 0x%x\n", | |
7185 | readl(&(tb->TransportSupport))); | |
7186 | dev_info(dev, " Transport methods active = 0x%x\n", | |
7187 | readl(&(tb->TransportActive))); | |
7188 | dev_info(dev, " Requested transport Method = 0x%x\n", | |
7189 | readl(&(tb->HostWrite.TransportRequest))); | |
7190 | dev_info(dev, " Coalesce Interrupt Delay = 0x%x\n", | |
7191 | readl(&(tb->HostWrite.CoalIntDelay))); | |
7192 | dev_info(dev, " Coalesce Interrupt Count = 0x%x\n", | |
7193 | readl(&(tb->HostWrite.CoalIntCount))); | |
69d6e33d | 7194 | dev_info(dev, " Max outstanding commands = %d\n", |
edd16368 SC |
7195 | readl(&(tb->CmdsOutMax))); |
7196 | dev_info(dev, " Bus Types = 0x%x\n", readl(&(tb->BusTypes))); | |
7197 | for (i = 0; i < 16; i++) | |
7198 | temp_name[i] = readb(&(tb->ServerName[i])); | |
7199 | temp_name[16] = '\0'; | |
7200 | dev_info(dev, " Server Name = %s\n", temp_name); | |
7201 | dev_info(dev, " Heartbeat Counter = 0x%x\n\n\n", | |
7202 | readl(&(tb->HeartBeat))); | |
edd16368 | 7203 | #endif /* HPSA_DEBUG */ |
58f8665c | 7204 | } |
edd16368 SC |
7205 | |
7206 | static int find_PCI_BAR_index(struct pci_dev *pdev, unsigned long pci_bar_addr) | |
7207 | { | |
7208 | int i, offset, mem_type, bar_type; | |
7209 | ||
7210 | if (pci_bar_addr == PCI_BASE_ADDRESS_0) /* looking for BAR zero? */ | |
7211 | return 0; | |
7212 | offset = 0; | |
7213 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { | |
7214 | bar_type = pci_resource_flags(pdev, i) & PCI_BASE_ADDRESS_SPACE; | |
7215 | if (bar_type == PCI_BASE_ADDRESS_SPACE_IO) | |
7216 | offset += 4; | |
7217 | else { | |
7218 | mem_type = pci_resource_flags(pdev, i) & | |
7219 | PCI_BASE_ADDRESS_MEM_TYPE_MASK; | |
7220 | switch (mem_type) { | |
7221 | case PCI_BASE_ADDRESS_MEM_TYPE_32: | |
7222 | case PCI_BASE_ADDRESS_MEM_TYPE_1M: | |
7223 | offset += 4; /* 32 bit */ | |
7224 | break; | |
7225 | case PCI_BASE_ADDRESS_MEM_TYPE_64: | |
7226 | offset += 8; | |
7227 | break; | |
7228 | default: /* reserved in PCI 2.2 */ | |
7229 | dev_warn(&pdev->dev, | |
7230 | "base address is invalid\n"); | |
7231 | return -1; | |
7232 | break; | |
7233 | } | |
7234 | } | |
7235 | if (offset == pci_bar_addr - PCI_BASE_ADDRESS_0) | |
7236 | return i + 1; | |
7237 | } | |
7238 | return -1; | |
7239 | } | |
7240 | ||
cc64c817 RE |
7241 | static void hpsa_disable_interrupt_mode(struct ctlr_info *h) |
7242 | { | |
bc2bb154 CH |
7243 | pci_free_irq_vectors(h->pdev); |
7244 | h->msix_vectors = 0; | |
cc64c817 RE |
7245 | } |
7246 | ||
edd16368 | 7247 | /* If MSI/MSI-X is supported by the kernel we will try to enable it on |
050f7147 | 7248 | * controllers that are capable. If not, we use legacy INTx mode. |
edd16368 | 7249 | */ |
bc2bb154 | 7250 | static int hpsa_interrupt_mode(struct ctlr_info *h) |
edd16368 | 7251 | { |
bc2bb154 CH |
7252 | unsigned int flags = PCI_IRQ_LEGACY; |
7253 | int ret; | |
edd16368 SC |
7254 | |
7255 | /* Some boards advertise MSI but don't really support it */ | |
bc2bb154 CH |
7256 | switch (h->board_id) { |
7257 | case 0x40700E11: | |
7258 | case 0x40800E11: | |
7259 | case 0x40820E11: | |
7260 | case 0x40830E11: | |
7261 | break; | |
7262 | default: | |
7263 | ret = pci_alloc_irq_vectors(h->pdev, 1, MAX_REPLY_QUEUES, | |
7264 | PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); | |
7265 | if (ret > 0) { | |
7266 | h->msix_vectors = ret; | |
7267 | return 0; | |
edd16368 | 7268 | } |
bc2bb154 CH |
7269 | |
7270 | flags |= PCI_IRQ_MSI; | |
7271 | break; | |
edd16368 | 7272 | } |
bc2bb154 CH |
7273 | |
7274 | ret = pci_alloc_irq_vectors(h->pdev, 1, 1, flags); | |
7275 | if (ret < 0) | |
7276 | return ret; | |
7277 | return 0; | |
edd16368 SC |
7278 | } |
7279 | ||
135ae6ed HR |
7280 | static int hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id, |
7281 | bool *legacy_board) | |
e5c880d1 SC |
7282 | { |
7283 | int i; | |
7284 | u32 subsystem_vendor_id, subsystem_device_id; | |
7285 | ||
7286 | subsystem_vendor_id = pdev->subsystem_vendor; | |
7287 | subsystem_device_id = pdev->subsystem_device; | |
7288 | *board_id = ((subsystem_device_id << 16) & 0xffff0000) | | |
7289 | subsystem_vendor_id; | |
7290 | ||
135ae6ed HR |
7291 | if (legacy_board) |
7292 | *legacy_board = false; | |
e5c880d1 | 7293 | for (i = 0; i < ARRAY_SIZE(products); i++) |
135ae6ed HR |
7294 | if (*board_id == products[i].board_id) { |
7295 | if (products[i].access != &SA5A_access && | |
7296 | products[i].access != &SA5B_access) | |
7297 | return i; | |
c8cd71f1 HR |
7298 | dev_warn(&pdev->dev, |
7299 | "legacy board ID: 0x%08x\n", | |
7300 | *board_id); | |
7301 | if (legacy_board) | |
7302 | *legacy_board = true; | |
7303 | return i; | |
135ae6ed | 7304 | } |
e5c880d1 | 7305 | |
c8cd71f1 | 7306 | dev_warn(&pdev->dev, "unrecognized board ID: 0x%08x\n", *board_id); |
135ae6ed HR |
7307 | if (legacy_board) |
7308 | *legacy_board = true; | |
e5c880d1 SC |
7309 | return ARRAY_SIZE(products) - 1; /* generic unknown smart array */ |
7310 | } | |
7311 | ||
6f039790 GKH |
7312 | static int hpsa_pci_find_memory_BAR(struct pci_dev *pdev, |
7313 | unsigned long *memory_bar) | |
3a7774ce SC |
7314 | { |
7315 | int i; | |
7316 | ||
7317 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) | |
12d2cd47 | 7318 | if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) { |
3a7774ce | 7319 | /* addressing mode bits already removed */ |
12d2cd47 SC |
7320 | *memory_bar = pci_resource_start(pdev, i); |
7321 | dev_dbg(&pdev->dev, "memory BAR = %lx\n", | |
3a7774ce SC |
7322 | *memory_bar); |
7323 | return 0; | |
7324 | } | |
12d2cd47 | 7325 | dev_warn(&pdev->dev, "no memory BAR found\n"); |
3a7774ce SC |
7326 | return -ENODEV; |
7327 | } | |
7328 | ||
6f039790 GKH |
7329 | static int hpsa_wait_for_board_state(struct pci_dev *pdev, void __iomem *vaddr, |
7330 | int wait_for_ready) | |
2c4c8c8b | 7331 | { |
fe5389c8 | 7332 | int i, iterations; |
2c4c8c8b | 7333 | u32 scratchpad; |
fe5389c8 SC |
7334 | if (wait_for_ready) |
7335 | iterations = HPSA_BOARD_READY_ITERATIONS; | |
7336 | else | |
7337 | iterations = HPSA_BOARD_NOT_READY_ITERATIONS; | |
2c4c8c8b | 7338 | |
fe5389c8 SC |
7339 | for (i = 0; i < iterations; i++) { |
7340 | scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET); | |
7341 | if (wait_for_ready) { | |
7342 | if (scratchpad == HPSA_FIRMWARE_READY) | |
7343 | return 0; | |
7344 | } else { | |
7345 | if (scratchpad != HPSA_FIRMWARE_READY) | |
7346 | return 0; | |
7347 | } | |
2c4c8c8b SC |
7348 | msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS); |
7349 | } | |
fe5389c8 | 7350 | dev_warn(&pdev->dev, "board not ready, timed out.\n"); |
2c4c8c8b SC |
7351 | return -ENODEV; |
7352 | } | |
7353 | ||
6f039790 GKH |
7354 | static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr, |
7355 | u32 *cfg_base_addr, u64 *cfg_base_addr_index, | |
7356 | u64 *cfg_offset) | |
a51fd47f SC |
7357 | { |
7358 | *cfg_base_addr = readl(vaddr + SA5_CTCFG_OFFSET); | |
7359 | *cfg_offset = readl(vaddr + SA5_CTMEM_OFFSET); | |
7360 | *cfg_base_addr &= (u32) 0x0000ffff; | |
7361 | *cfg_base_addr_index = find_PCI_BAR_index(pdev, *cfg_base_addr); | |
7362 | if (*cfg_base_addr_index == -1) { | |
7363 | dev_warn(&pdev->dev, "cannot find cfg_base_addr_index\n"); | |
7364 | return -ENODEV; | |
7365 | } | |
7366 | return 0; | |
7367 | } | |
7368 | ||
195f2c65 RE |
7369 | static void hpsa_free_cfgtables(struct ctlr_info *h) |
7370 | { | |
105a3dbc | 7371 | if (h->transtable) { |
195f2c65 | 7372 | iounmap(h->transtable); |
105a3dbc RE |
7373 | h->transtable = NULL; |
7374 | } | |
7375 | if (h->cfgtable) { | |
195f2c65 | 7376 | iounmap(h->cfgtable); |
105a3dbc RE |
7377 | h->cfgtable = NULL; |
7378 | } | |
195f2c65 RE |
7379 | } |
7380 | ||
7381 | /* Find and map CISS config table and transfer table | |
7382 | + * several items must be unmapped (freed) later | |
7383 | + * */ | |
6f039790 | 7384 | static int hpsa_find_cfgtables(struct ctlr_info *h) |
edd16368 | 7385 | { |
01a02ffc SC |
7386 | u64 cfg_offset; |
7387 | u32 cfg_base_addr; | |
7388 | u64 cfg_base_addr_index; | |
303932fd | 7389 | u32 trans_offset; |
a51fd47f | 7390 | int rc; |
77c4495c | 7391 | |
a51fd47f SC |
7392 | rc = hpsa_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr, |
7393 | &cfg_base_addr_index, &cfg_offset); | |
7394 | if (rc) | |
7395 | return rc; | |
77c4495c | 7396 | h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev, |
a51fd47f | 7397 | cfg_base_addr_index) + cfg_offset, sizeof(*h->cfgtable)); |
cd3c81c4 RE |
7398 | if (!h->cfgtable) { |
7399 | dev_err(&h->pdev->dev, "Failed mapping cfgtable\n"); | |
77c4495c | 7400 | return -ENOMEM; |
cd3c81c4 | 7401 | } |
580ada3c SC |
7402 | rc = write_driver_ver_to_cfgtable(h->cfgtable); |
7403 | if (rc) | |
7404 | return rc; | |
77c4495c | 7405 | /* Find performant mode table. */ |
a51fd47f | 7406 | trans_offset = readl(&h->cfgtable->TransMethodOffset); |
77c4495c SC |
7407 | h->transtable = remap_pci_mem(pci_resource_start(h->pdev, |
7408 | cfg_base_addr_index)+cfg_offset+trans_offset, | |
7409 | sizeof(*h->transtable)); | |
195f2c65 RE |
7410 | if (!h->transtable) { |
7411 | dev_err(&h->pdev->dev, "Failed mapping transfer table\n"); | |
7412 | hpsa_free_cfgtables(h); | |
77c4495c | 7413 | return -ENOMEM; |
195f2c65 | 7414 | } |
77c4495c SC |
7415 | return 0; |
7416 | } | |
7417 | ||
6f039790 | 7418 | static void hpsa_get_max_perf_mode_cmds(struct ctlr_info *h) |
cba3d38b | 7419 | { |
41ce4c35 SC |
7420 | #define MIN_MAX_COMMANDS 16 |
7421 | BUILD_BUG_ON(MIN_MAX_COMMANDS <= HPSA_NRESERVED_CMDS); | |
7422 | ||
7423 | h->max_commands = readl(&h->cfgtable->MaxPerformantModeCommands); | |
72ceeaec SC |
7424 | |
7425 | /* Limit commands in memory limited kdump scenario. */ | |
7426 | if (reset_devices && h->max_commands > 32) | |
7427 | h->max_commands = 32; | |
7428 | ||
41ce4c35 SC |
7429 | if (h->max_commands < MIN_MAX_COMMANDS) { |
7430 | dev_warn(&h->pdev->dev, | |
7431 | "Controller reports max supported commands of %d Using %d instead. Ensure that firmware is up to date.\n", | |
7432 | h->max_commands, | |
7433 | MIN_MAX_COMMANDS); | |
7434 | h->max_commands = MIN_MAX_COMMANDS; | |
cba3d38b SC |
7435 | } |
7436 | } | |
7437 | ||
c7ee65b3 WS |
7438 | /* If the controller reports that the total max sg entries is greater than 512, |
7439 | * then we know that chained SG blocks work. (Original smart arrays did not | |
7440 | * support chained SG blocks and would return zero for max sg entries.) | |
7441 | */ | |
7442 | static int hpsa_supports_chained_sg_blocks(struct ctlr_info *h) | |
7443 | { | |
7444 | return h->maxsgentries > 512; | |
7445 | } | |
7446 | ||
b93d7536 SC |
7447 | /* Interrogate the hardware for some limits: |
7448 | * max commands, max SG elements without chaining, and with chaining, | |
7449 | * SG chain block size, etc. | |
7450 | */ | |
6f039790 | 7451 | static void hpsa_find_board_params(struct ctlr_info *h) |
b93d7536 | 7452 | { |
cba3d38b | 7453 | hpsa_get_max_perf_mode_cmds(h); |
45fcb86e | 7454 | h->nr_cmds = h->max_commands; |
b93d7536 | 7455 | h->maxsgentries = readl(&(h->cfgtable->MaxScatterGatherElements)); |
283b4a9b | 7456 | h->fw_support = readl(&(h->cfgtable->misc_fw_support)); |
c7ee65b3 WS |
7457 | if (hpsa_supports_chained_sg_blocks(h)) { |
7458 | /* Limit in-command s/g elements to 32 save dma'able memory. */ | |
b93d7536 | 7459 | h->max_cmd_sg_entries = 32; |
1a63ea6f | 7460 | h->chainsize = h->maxsgentries - h->max_cmd_sg_entries; |
b93d7536 SC |
7461 | h->maxsgentries--; /* save one for chain pointer */ |
7462 | } else { | |
c7ee65b3 WS |
7463 | /* |
7464 | * Original smart arrays supported at most 31 s/g entries | |
7465 | * embedded inline in the command (trying to use more | |
7466 | * would lock up the controller) | |
7467 | */ | |
7468 | h->max_cmd_sg_entries = 31; | |
1a63ea6f | 7469 | h->maxsgentries = 31; /* default to traditional values */ |
c7ee65b3 | 7470 | h->chainsize = 0; |
b93d7536 | 7471 | } |
75167d2c SC |
7472 | |
7473 | /* Find out what task management functions are supported and cache */ | |
7474 | h->TMFSupportFlags = readl(&(h->cfgtable->TMFSupportFlags)); | |
0e7a7fce ST |
7475 | if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags)) |
7476 | dev_warn(&h->pdev->dev, "Physical aborts not supported\n"); | |
7477 | if (!(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags)) | |
7478 | dev_warn(&h->pdev->dev, "Logical aborts not supported\n"); | |
8be986cc SC |
7479 | if (!(HPSATMF_IOACCEL_ENABLED & h->TMFSupportFlags)) |
7480 | dev_warn(&h->pdev->dev, "HP SSD Smart Path aborts not supported\n"); | |
b93d7536 SC |
7481 | } |
7482 | ||
76c46e49 SC |
7483 | static inline bool hpsa_CISS_signature_present(struct ctlr_info *h) |
7484 | { | |
0fc9fd40 | 7485 | if (!check_signature(h->cfgtable->Signature, "CISS", 4)) { |
050f7147 | 7486 | dev_err(&h->pdev->dev, "not a valid CISS config table\n"); |
76c46e49 SC |
7487 | return false; |
7488 | } | |
7489 | return true; | |
7490 | } | |
7491 | ||
97a5e98c | 7492 | static inline void hpsa_set_driver_support_bits(struct ctlr_info *h) |
f7c39101 | 7493 | { |
97a5e98c | 7494 | u32 driver_support; |
f7c39101 | 7495 | |
97a5e98c | 7496 | driver_support = readl(&(h->cfgtable->driver_support)); |
0b9e7b74 AB |
7497 | /* Need to enable prefetch in the SCSI core for 6400 in x86 */ |
7498 | #ifdef CONFIG_X86 | |
97a5e98c | 7499 | driver_support |= ENABLE_SCSI_PREFETCH; |
f7c39101 | 7500 | #endif |
28e13446 SC |
7501 | driver_support |= ENABLE_UNIT_ATTN; |
7502 | writel(driver_support, &(h->cfgtable->driver_support)); | |
f7c39101 SC |
7503 | } |
7504 | ||
3d0eab67 SC |
7505 | /* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result |
7506 | * in a prefetch beyond physical memory. | |
7507 | */ | |
7508 | static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info *h) | |
7509 | { | |
7510 | u32 dma_prefetch; | |
7511 | ||
7512 | if (h->board_id != 0x3225103C) | |
7513 | return; | |
7514 | dma_prefetch = readl(h->vaddr + I2O_DMA1_CFG); | |
7515 | dma_prefetch |= 0x8000; | |
7516 | writel(dma_prefetch, h->vaddr + I2O_DMA1_CFG); | |
7517 | } | |
7518 | ||
c706a795 | 7519 | static int hpsa_wait_for_clear_event_notify_ack(struct ctlr_info *h) |
76438d08 SC |
7520 | { |
7521 | int i; | |
7522 | u32 doorbell_value; | |
7523 | unsigned long flags; | |
7524 | /* wait until the clear_event_notify bit 6 is cleared by controller. */ | |
007e7aa9 | 7525 | for (i = 0; i < MAX_CLEAR_EVENT_WAIT; i++) { |
76438d08 SC |
7526 | spin_lock_irqsave(&h->lock, flags); |
7527 | doorbell_value = readl(h->vaddr + SA5_DOORBELL); | |
7528 | spin_unlock_irqrestore(&h->lock, flags); | |
7529 | if (!(doorbell_value & DOORBELL_CLEAR_EVENTS)) | |
c706a795 | 7530 | goto done; |
76438d08 | 7531 | /* delay and try again */ |
007e7aa9 | 7532 | msleep(CLEAR_EVENT_WAIT_INTERVAL); |
76438d08 | 7533 | } |
c706a795 RE |
7534 | return -ENODEV; |
7535 | done: | |
7536 | return 0; | |
76438d08 SC |
7537 | } |
7538 | ||
c706a795 | 7539 | static int hpsa_wait_for_mode_change_ack(struct ctlr_info *h) |
eb6b2ae9 SC |
7540 | { |
7541 | int i; | |
6eaf46fd SC |
7542 | u32 doorbell_value; |
7543 | unsigned long flags; | |
eb6b2ae9 SC |
7544 | |
7545 | /* under certain very rare conditions, this can take awhile. | |
7546 | * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right | |
7547 | * as we enter this code.) | |
7548 | */ | |
007e7aa9 | 7549 | for (i = 0; i < MAX_MODE_CHANGE_WAIT; i++) { |
25163bd5 WS |
7550 | if (h->remove_in_progress) |
7551 | goto done; | |
6eaf46fd SC |
7552 | spin_lock_irqsave(&h->lock, flags); |
7553 | doorbell_value = readl(h->vaddr + SA5_DOORBELL); | |
7554 | spin_unlock_irqrestore(&h->lock, flags); | |
382be668 | 7555 | if (!(doorbell_value & CFGTBL_ChangeReq)) |
c706a795 | 7556 | goto done; |
eb6b2ae9 | 7557 | /* delay and try again */ |
007e7aa9 | 7558 | msleep(MODE_CHANGE_WAIT_INTERVAL); |
eb6b2ae9 | 7559 | } |
c706a795 RE |
7560 | return -ENODEV; |
7561 | done: | |
7562 | return 0; | |
3f4336f3 SC |
7563 | } |
7564 | ||
c706a795 | 7565 | /* return -ENODEV or other reason on error, 0 on success */ |
6f039790 | 7566 | static int hpsa_enter_simple_mode(struct ctlr_info *h) |
3f4336f3 SC |
7567 | { |
7568 | u32 trans_support; | |
7569 | ||
7570 | trans_support = readl(&(h->cfgtable->TransportSupport)); | |
7571 | if (!(trans_support & SIMPLE_MODE)) | |
7572 | return -ENOTSUPP; | |
7573 | ||
7574 | h->max_commands = readl(&(h->cfgtable->CmdsOutMax)); | |
283b4a9b | 7575 | |
3f4336f3 SC |
7576 | /* Update the field, and then ring the doorbell */ |
7577 | writel(CFGTBL_Trans_Simple, &(h->cfgtable->HostWrite.TransportRequest)); | |
b9af4937 | 7578 | writel(0, &h->cfgtable->HostWrite.command_pool_addr_hi); |
3f4336f3 | 7579 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); |
c706a795 RE |
7580 | if (hpsa_wait_for_mode_change_ack(h)) |
7581 | goto error; | |
eb6b2ae9 | 7582 | print_cfg_table(&h->pdev->dev, h->cfgtable); |
283b4a9b SC |
7583 | if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) |
7584 | goto error; | |
960a30e7 | 7585 | h->transMethod = CFGTBL_Trans_Simple; |
eb6b2ae9 | 7586 | return 0; |
283b4a9b | 7587 | error: |
050f7147 | 7588 | dev_err(&h->pdev->dev, "failed to enter simple mode\n"); |
283b4a9b | 7589 | return -ENODEV; |
eb6b2ae9 SC |
7590 | } |
7591 | ||
195f2c65 RE |
7592 | /* free items allocated or mapped by hpsa_pci_init */ |
7593 | static void hpsa_free_pci_init(struct ctlr_info *h) | |
7594 | { | |
7595 | hpsa_free_cfgtables(h); /* pci_init 4 */ | |
7596 | iounmap(h->vaddr); /* pci_init 3 */ | |
105a3dbc | 7597 | h->vaddr = NULL; |
195f2c65 | 7598 | hpsa_disable_interrupt_mode(h); /* pci_init 2 */ |
943a7021 RE |
7599 | /* |
7600 | * call pci_disable_device before pci_release_regions per | |
7601 | * Documentation/PCI/pci.txt | |
7602 | */ | |
195f2c65 | 7603 | pci_disable_device(h->pdev); /* pci_init 1 */ |
943a7021 | 7604 | pci_release_regions(h->pdev); /* pci_init 2 */ |
195f2c65 RE |
7605 | } |
7606 | ||
7607 | /* several items must be freed later */ | |
6f039790 | 7608 | static int hpsa_pci_init(struct ctlr_info *h) |
77c4495c | 7609 | { |
eb6b2ae9 | 7610 | int prod_index, err; |
135ae6ed | 7611 | bool legacy_board; |
edd16368 | 7612 | |
135ae6ed | 7613 | prod_index = hpsa_lookup_board_id(h->pdev, &h->board_id, &legacy_board); |
e5c880d1 | 7614 | if (prod_index < 0) |
60f923b9 | 7615 | return prod_index; |
e5c880d1 SC |
7616 | h->product_name = products[prod_index].product_name; |
7617 | h->access = *(products[prod_index].access); | |
135ae6ed | 7618 | h->legacy_board = legacy_board; |
e5a44df8 MG |
7619 | pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S | |
7620 | PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM); | |
7621 | ||
55c06c71 | 7622 | err = pci_enable_device(h->pdev); |
edd16368 | 7623 | if (err) { |
195f2c65 | 7624 | dev_err(&h->pdev->dev, "failed to enable PCI device\n"); |
943a7021 | 7625 | pci_disable_device(h->pdev); |
edd16368 SC |
7626 | return err; |
7627 | } | |
7628 | ||
f79cfec6 | 7629 | err = pci_request_regions(h->pdev, HPSA); |
edd16368 | 7630 | if (err) { |
55c06c71 | 7631 | dev_err(&h->pdev->dev, |
195f2c65 | 7632 | "failed to obtain PCI resources\n"); |
943a7021 RE |
7633 | pci_disable_device(h->pdev); |
7634 | return err; | |
edd16368 | 7635 | } |
4fa604e1 RE |
7636 | |
7637 | pci_set_master(h->pdev); | |
7638 | ||
bc2bb154 CH |
7639 | err = hpsa_interrupt_mode(h); |
7640 | if (err) | |
7641 | goto clean1; | |
12d2cd47 | 7642 | err = hpsa_pci_find_memory_BAR(h->pdev, &h->paddr); |
3a7774ce | 7643 | if (err) |
195f2c65 | 7644 | goto clean2; /* intmode+region, pci */ |
edd16368 | 7645 | h->vaddr = remap_pci_mem(h->paddr, 0x250); |
204892e9 | 7646 | if (!h->vaddr) { |
195f2c65 | 7647 | dev_err(&h->pdev->dev, "failed to remap PCI mem\n"); |
204892e9 | 7648 | err = -ENOMEM; |
195f2c65 | 7649 | goto clean2; /* intmode+region, pci */ |
204892e9 | 7650 | } |
fe5389c8 | 7651 | err = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY); |
2c4c8c8b | 7652 | if (err) |
195f2c65 | 7653 | goto clean3; /* vaddr, intmode+region, pci */ |
77c4495c SC |
7654 | err = hpsa_find_cfgtables(h); |
7655 | if (err) | |
195f2c65 | 7656 | goto clean3; /* vaddr, intmode+region, pci */ |
b93d7536 | 7657 | hpsa_find_board_params(h); |
edd16368 | 7658 | |
76c46e49 | 7659 | if (!hpsa_CISS_signature_present(h)) { |
edd16368 | 7660 | err = -ENODEV; |
195f2c65 | 7661 | goto clean4; /* cfgtables, vaddr, intmode+region, pci */ |
edd16368 | 7662 | } |
97a5e98c | 7663 | hpsa_set_driver_support_bits(h); |
3d0eab67 | 7664 | hpsa_p600_dma_prefetch_quirk(h); |
eb6b2ae9 SC |
7665 | err = hpsa_enter_simple_mode(h); |
7666 | if (err) | |
195f2c65 | 7667 | goto clean4; /* cfgtables, vaddr, intmode+region, pci */ |
edd16368 SC |
7668 | return 0; |
7669 | ||
195f2c65 RE |
7670 | clean4: /* cfgtables, vaddr, intmode+region, pci */ |
7671 | hpsa_free_cfgtables(h); | |
7672 | clean3: /* vaddr, intmode+region, pci */ | |
7673 | iounmap(h->vaddr); | |
105a3dbc | 7674 | h->vaddr = NULL; |
195f2c65 RE |
7675 | clean2: /* intmode+region, pci */ |
7676 | hpsa_disable_interrupt_mode(h); | |
bc2bb154 | 7677 | clean1: |
943a7021 RE |
7678 | /* |
7679 | * call pci_disable_device before pci_release_regions per | |
7680 | * Documentation/PCI/pci.txt | |
7681 | */ | |
195f2c65 | 7682 | pci_disable_device(h->pdev); |
943a7021 | 7683 | pci_release_regions(h->pdev); |
edd16368 SC |
7684 | return err; |
7685 | } | |
7686 | ||
6f039790 | 7687 | static void hpsa_hba_inquiry(struct ctlr_info *h) |
339b2b14 SC |
7688 | { |
7689 | int rc; | |
7690 | ||
7691 | #define HBA_INQUIRY_BYTE_COUNT 64 | |
7692 | h->hba_inquiry_data = kmalloc(HBA_INQUIRY_BYTE_COUNT, GFP_KERNEL); | |
7693 | if (!h->hba_inquiry_data) | |
7694 | return; | |
7695 | rc = hpsa_scsi_do_inquiry(h, RAID_CTLR_LUNID, 0, | |
7696 | h->hba_inquiry_data, HBA_INQUIRY_BYTE_COUNT); | |
7697 | if (rc != 0) { | |
7698 | kfree(h->hba_inquiry_data); | |
7699 | h->hba_inquiry_data = NULL; | |
7700 | } | |
7701 | } | |
7702 | ||
6b6c1cd7 | 7703 | static int hpsa_init_reset_devices(struct pci_dev *pdev, u32 board_id) |
4c2a8c40 | 7704 | { |
1df8552a | 7705 | int rc, i; |
3b747298 | 7706 | void __iomem *vaddr; |
4c2a8c40 SC |
7707 | |
7708 | if (!reset_devices) | |
7709 | return 0; | |
7710 | ||
132aa220 TH |
7711 | /* kdump kernel is loading, we don't know in which state is |
7712 | * the pci interface. The dev->enable_cnt is equal zero | |
7713 | * so we call enable+disable, wait a while and switch it on. | |
7714 | */ | |
7715 | rc = pci_enable_device(pdev); | |
7716 | if (rc) { | |
7717 | dev_warn(&pdev->dev, "Failed to enable PCI device\n"); | |
7718 | return -ENODEV; | |
7719 | } | |
7720 | pci_disable_device(pdev); | |
7721 | msleep(260); /* a randomly chosen number */ | |
7722 | rc = pci_enable_device(pdev); | |
7723 | if (rc) { | |
7724 | dev_warn(&pdev->dev, "failed to enable device.\n"); | |
7725 | return -ENODEV; | |
7726 | } | |
4fa604e1 | 7727 | |
859c75ab | 7728 | pci_set_master(pdev); |
4fa604e1 | 7729 | |
3b747298 TH |
7730 | vaddr = pci_ioremap_bar(pdev, 0); |
7731 | if (vaddr == NULL) { | |
7732 | rc = -ENOMEM; | |
7733 | goto out_disable; | |
7734 | } | |
7735 | writel(SA5_INTR_OFF, vaddr + SA5_REPLY_INTR_MASK_OFFSET); | |
7736 | iounmap(vaddr); | |
7737 | ||
1df8552a | 7738 | /* Reset the controller with a PCI power-cycle or via doorbell */ |
6b6c1cd7 | 7739 | rc = hpsa_kdump_hard_reset_controller(pdev, board_id); |
4c2a8c40 | 7740 | |
1df8552a SC |
7741 | /* -ENOTSUPP here means we cannot reset the controller |
7742 | * but it's already (and still) up and running in | |
18867659 SC |
7743 | * "performant mode". Or, it might be 640x, which can't reset |
7744 | * due to concerns about shared bbwc between 6402/6404 pair. | |
1df8552a | 7745 | */ |
adf1b3a3 | 7746 | if (rc) |
132aa220 | 7747 | goto out_disable; |
4c2a8c40 SC |
7748 | |
7749 | /* Now try to get the controller to respond to a no-op */ | |
1ba66c9c | 7750 | dev_info(&pdev->dev, "Waiting for controller to respond to no-op\n"); |
4c2a8c40 SC |
7751 | for (i = 0; i < HPSA_POST_RESET_NOOP_RETRIES; i++) { |
7752 | if (hpsa_noop(pdev) == 0) | |
7753 | break; | |
7754 | else | |
7755 | dev_warn(&pdev->dev, "no-op failed%s\n", | |
7756 | (i < 11 ? "; re-trying" : "")); | |
7757 | } | |
132aa220 TH |
7758 | |
7759 | out_disable: | |
7760 | ||
7761 | pci_disable_device(pdev); | |
7762 | return rc; | |
4c2a8c40 SC |
7763 | } |
7764 | ||
1fb7c98a RE |
7765 | static void hpsa_free_cmd_pool(struct ctlr_info *h) |
7766 | { | |
7767 | kfree(h->cmd_pool_bits); | |
105a3dbc RE |
7768 | h->cmd_pool_bits = NULL; |
7769 | if (h->cmd_pool) { | |
1fb7c98a RE |
7770 | pci_free_consistent(h->pdev, |
7771 | h->nr_cmds * sizeof(struct CommandList), | |
7772 | h->cmd_pool, | |
7773 | h->cmd_pool_dhandle); | |
105a3dbc RE |
7774 | h->cmd_pool = NULL; |
7775 | h->cmd_pool_dhandle = 0; | |
7776 | } | |
7777 | if (h->errinfo_pool) { | |
1fb7c98a RE |
7778 | pci_free_consistent(h->pdev, |
7779 | h->nr_cmds * sizeof(struct ErrorInfo), | |
7780 | h->errinfo_pool, | |
7781 | h->errinfo_pool_dhandle); | |
105a3dbc RE |
7782 | h->errinfo_pool = NULL; |
7783 | h->errinfo_pool_dhandle = 0; | |
7784 | } | |
1fb7c98a RE |
7785 | } |
7786 | ||
d37ffbe4 | 7787 | static int hpsa_alloc_cmd_pool(struct ctlr_info *h) |
2e9d1b36 SC |
7788 | { |
7789 | h->cmd_pool_bits = kzalloc( | |
7790 | DIV_ROUND_UP(h->nr_cmds, BITS_PER_LONG) * | |
7791 | sizeof(unsigned long), GFP_KERNEL); | |
7792 | h->cmd_pool = pci_alloc_consistent(h->pdev, | |
7793 | h->nr_cmds * sizeof(*h->cmd_pool), | |
7794 | &(h->cmd_pool_dhandle)); | |
7795 | h->errinfo_pool = pci_alloc_consistent(h->pdev, | |
7796 | h->nr_cmds * sizeof(*h->errinfo_pool), | |
7797 | &(h->errinfo_pool_dhandle)); | |
7798 | if ((h->cmd_pool_bits == NULL) | |
7799 | || (h->cmd_pool == NULL) | |
7800 | || (h->errinfo_pool == NULL)) { | |
7801 | dev_err(&h->pdev->dev, "out of memory in %s", __func__); | |
2c143342 | 7802 | goto clean_up; |
2e9d1b36 | 7803 | } |
360c73bd | 7804 | hpsa_preinitialize_commands(h); |
2e9d1b36 | 7805 | return 0; |
2c143342 RE |
7806 | clean_up: |
7807 | hpsa_free_cmd_pool(h); | |
7808 | return -ENOMEM; | |
2e9d1b36 SC |
7809 | } |
7810 | ||
ec501a18 RE |
7811 | /* clear affinity hints and free MSI-X, MSI, or legacy INTx vectors */ |
7812 | static void hpsa_free_irqs(struct ctlr_info *h) | |
7813 | { | |
7814 | int i; | |
7815 | ||
bc2bb154 | 7816 | if (!h->msix_vectors || h->intr_mode != PERF_MODE_INT) { |
ec501a18 | 7817 | /* Single reply queue, only one irq to free */ |
7dc62d93 | 7818 | free_irq(pci_irq_vector(h->pdev, 0), &h->q[h->intr_mode]); |
bc2bb154 | 7819 | h->q[h->intr_mode] = 0; |
ec501a18 RE |
7820 | return; |
7821 | } | |
7822 | ||
bc2bb154 CH |
7823 | for (i = 0; i < h->msix_vectors; i++) { |
7824 | free_irq(pci_irq_vector(h->pdev, i), &h->q[i]); | |
105a3dbc | 7825 | h->q[i] = 0; |
ec501a18 | 7826 | } |
a4e17fc1 RE |
7827 | for (; i < MAX_REPLY_QUEUES; i++) |
7828 | h->q[i] = 0; | |
ec501a18 RE |
7829 | } |
7830 | ||
9ee61794 RE |
7831 | /* returns 0 on success; cleans up and returns -Enn on error */ |
7832 | static int hpsa_request_irqs(struct ctlr_info *h, | |
0ae01a32 SC |
7833 | irqreturn_t (*msixhandler)(int, void *), |
7834 | irqreturn_t (*intxhandler)(int, void *)) | |
7835 | { | |
254f796b | 7836 | int rc, i; |
0ae01a32 | 7837 | |
254f796b MG |
7838 | /* |
7839 | * initialize h->q[x] = x so that interrupt handlers know which | |
7840 | * queue to process. | |
7841 | */ | |
7842 | for (i = 0; i < MAX_REPLY_QUEUES; i++) | |
7843 | h->q[i] = (u8) i; | |
7844 | ||
bc2bb154 | 7845 | if (h->intr_mode == PERF_MODE_INT && h->msix_vectors > 0) { |
254f796b | 7846 | /* If performant mode and MSI-X, use multiple reply queues */ |
bc2bb154 | 7847 | for (i = 0; i < h->msix_vectors; i++) { |
8b47004a | 7848 | sprintf(h->intrname[i], "%s-msix%d", h->devname, i); |
bc2bb154 | 7849 | rc = request_irq(pci_irq_vector(h->pdev, i), msixhandler, |
8b47004a | 7850 | 0, h->intrname[i], |
254f796b | 7851 | &h->q[i]); |
a4e17fc1 RE |
7852 | if (rc) { |
7853 | int j; | |
7854 | ||
7855 | dev_err(&h->pdev->dev, | |
7856 | "failed to get irq %d for %s\n", | |
bc2bb154 | 7857 | pci_irq_vector(h->pdev, i), h->devname); |
a4e17fc1 | 7858 | for (j = 0; j < i; j++) { |
bc2bb154 | 7859 | free_irq(pci_irq_vector(h->pdev, j), &h->q[j]); |
a4e17fc1 RE |
7860 | h->q[j] = 0; |
7861 | } | |
7862 | for (; j < MAX_REPLY_QUEUES; j++) | |
7863 | h->q[j] = 0; | |
7864 | return rc; | |
7865 | } | |
7866 | } | |
254f796b MG |
7867 | } else { |
7868 | /* Use single reply pool */ | |
bc2bb154 CH |
7869 | if (h->msix_vectors > 0 || h->pdev->msi_enabled) { |
7870 | sprintf(h->intrname[0], "%s-msi%s", h->devname, | |
7871 | h->msix_vectors ? "x" : ""); | |
7872 | rc = request_irq(pci_irq_vector(h->pdev, 0), | |
8b47004a | 7873 | msixhandler, 0, |
bc2bb154 | 7874 | h->intrname[0], |
254f796b MG |
7875 | &h->q[h->intr_mode]); |
7876 | } else { | |
8b47004a RE |
7877 | sprintf(h->intrname[h->intr_mode], |
7878 | "%s-intx", h->devname); | |
bc2bb154 | 7879 | rc = request_irq(pci_irq_vector(h->pdev, 0), |
8b47004a | 7880 | intxhandler, IRQF_SHARED, |
bc2bb154 | 7881 | h->intrname[0], |
254f796b MG |
7882 | &h->q[h->intr_mode]); |
7883 | } | |
7884 | } | |
0ae01a32 | 7885 | if (rc) { |
195f2c65 | 7886 | dev_err(&h->pdev->dev, "failed to get irq %d for %s\n", |
bc2bb154 | 7887 | pci_irq_vector(h->pdev, 0), h->devname); |
195f2c65 | 7888 | hpsa_free_irqs(h); |
0ae01a32 SC |
7889 | return -ENODEV; |
7890 | } | |
7891 | return 0; | |
7892 | } | |
7893 | ||
6f039790 | 7894 | static int hpsa_kdump_soft_reset(struct ctlr_info *h) |
64670ac8 | 7895 | { |
39c53f55 | 7896 | int rc; |
bf43caf3 | 7897 | hpsa_send_host_reset(h, RAID_CTLR_LUNID, HPSA_RESET_TYPE_CONTROLLER); |
64670ac8 SC |
7898 | |
7899 | dev_info(&h->pdev->dev, "Waiting for board to soft reset.\n"); | |
39c53f55 RE |
7900 | rc = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_NOT_READY); |
7901 | if (rc) { | |
64670ac8 | 7902 | dev_warn(&h->pdev->dev, "Soft reset had no effect.\n"); |
39c53f55 | 7903 | return rc; |
64670ac8 SC |
7904 | } |
7905 | ||
7906 | dev_info(&h->pdev->dev, "Board reset, awaiting READY status.\n"); | |
39c53f55 RE |
7907 | rc = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY); |
7908 | if (rc) { | |
64670ac8 SC |
7909 | dev_warn(&h->pdev->dev, "Board failed to become ready " |
7910 | "after soft reset.\n"); | |
39c53f55 | 7911 | return rc; |
64670ac8 SC |
7912 | } |
7913 | ||
7914 | return 0; | |
7915 | } | |
7916 | ||
072b0518 SC |
7917 | static void hpsa_free_reply_queues(struct ctlr_info *h) |
7918 | { | |
7919 | int i; | |
7920 | ||
7921 | for (i = 0; i < h->nreply_queues; i++) { | |
7922 | if (!h->reply_queue[i].head) | |
7923 | continue; | |
1fb7c98a RE |
7924 | pci_free_consistent(h->pdev, |
7925 | h->reply_queue_size, | |
7926 | h->reply_queue[i].head, | |
7927 | h->reply_queue[i].busaddr); | |
072b0518 SC |
7928 | h->reply_queue[i].head = NULL; |
7929 | h->reply_queue[i].busaddr = 0; | |
7930 | } | |
105a3dbc | 7931 | h->reply_queue_size = 0; |
072b0518 SC |
7932 | } |
7933 | ||
0097f0f4 SC |
7934 | static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info *h) |
7935 | { | |
105a3dbc RE |
7936 | hpsa_free_performant_mode(h); /* init_one 7 */ |
7937 | hpsa_free_sg_chain_blocks(h); /* init_one 6 */ | |
7938 | hpsa_free_cmd_pool(h); /* init_one 5 */ | |
7939 | hpsa_free_irqs(h); /* init_one 4 */ | |
2946e82b RE |
7940 | scsi_host_put(h->scsi_host); /* init_one 3 */ |
7941 | h->scsi_host = NULL; /* init_one 3 */ | |
7942 | hpsa_free_pci_init(h); /* init_one 2_5 */ | |
9ecd953a RE |
7943 | free_percpu(h->lockup_detected); /* init_one 2 */ |
7944 | h->lockup_detected = NULL; /* init_one 2 */ | |
7945 | if (h->resubmit_wq) { | |
7946 | destroy_workqueue(h->resubmit_wq); /* init_one 1 */ | |
7947 | h->resubmit_wq = NULL; | |
7948 | } | |
7949 | if (h->rescan_ctlr_wq) { | |
7950 | destroy_workqueue(h->rescan_ctlr_wq); | |
7951 | h->rescan_ctlr_wq = NULL; | |
7952 | } | |
105a3dbc | 7953 | kfree(h); /* init_one 1 */ |
64670ac8 SC |
7954 | } |
7955 | ||
a0c12413 | 7956 | /* Called when controller lockup detected. */ |
f2405db8 | 7957 | static void fail_all_outstanding_cmds(struct ctlr_info *h) |
a0c12413 | 7958 | { |
281a7fd0 WS |
7959 | int i, refcount; |
7960 | struct CommandList *c; | |
25163bd5 | 7961 | int failcount = 0; |
a0c12413 | 7962 | |
080ef1cc | 7963 | flush_workqueue(h->resubmit_wq); /* ensure all cmds are fully built */ |
f2405db8 | 7964 | for (i = 0; i < h->nr_cmds; i++) { |
f2405db8 | 7965 | c = h->cmd_pool + i; |
281a7fd0 WS |
7966 | refcount = atomic_inc_return(&c->refcount); |
7967 | if (refcount > 1) { | |
25163bd5 | 7968 | c->err_info->CommandStatus = CMD_CTLR_LOCKUP; |
281a7fd0 | 7969 | finish_cmd(c); |
433b5f4d | 7970 | atomic_dec(&h->commands_outstanding); |
25163bd5 | 7971 | failcount++; |
281a7fd0 WS |
7972 | } |
7973 | cmd_free(h, c); | |
a0c12413 | 7974 | } |
25163bd5 WS |
7975 | dev_warn(&h->pdev->dev, |
7976 | "failed %d commands in fail_all\n", failcount); | |
a0c12413 SC |
7977 | } |
7978 | ||
094963da SC |
7979 | static void set_lockup_detected_for_all_cpus(struct ctlr_info *h, u32 value) |
7980 | { | |
c8ed0010 | 7981 | int cpu; |
094963da | 7982 | |
c8ed0010 | 7983 | for_each_online_cpu(cpu) { |
094963da SC |
7984 | u32 *lockup_detected; |
7985 | lockup_detected = per_cpu_ptr(h->lockup_detected, cpu); | |
7986 | *lockup_detected = value; | |
094963da SC |
7987 | } |
7988 | wmb(); /* be sure the per-cpu variables are out to memory */ | |
7989 | } | |
7990 | ||
a0c12413 SC |
7991 | static void controller_lockup_detected(struct ctlr_info *h) |
7992 | { | |
7993 | unsigned long flags; | |
094963da | 7994 | u32 lockup_detected; |
a0c12413 | 7995 | |
a0c12413 SC |
7996 | h->access.set_intr_mask(h, HPSA_INTR_OFF); |
7997 | spin_lock_irqsave(&h->lock, flags); | |
094963da SC |
7998 | lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET); |
7999 | if (!lockup_detected) { | |
8000 | /* no heartbeat, but controller gave us a zero. */ | |
8001 | dev_warn(&h->pdev->dev, | |
25163bd5 WS |
8002 | "lockup detected after %d but scratchpad register is zero\n", |
8003 | h->heartbeat_sample_interval / HZ); | |
094963da SC |
8004 | lockup_detected = 0xffffffff; |
8005 | } | |
8006 | set_lockup_detected_for_all_cpus(h, lockup_detected); | |
a0c12413 | 8007 | spin_unlock_irqrestore(&h->lock, flags); |
25163bd5 WS |
8008 | dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x after %d\n", |
8009 | lockup_detected, h->heartbeat_sample_interval / HZ); | |
a0c12413 | 8010 | pci_disable_device(h->pdev); |
f2405db8 | 8011 | fail_all_outstanding_cmds(h); |
a0c12413 SC |
8012 | } |
8013 | ||
25163bd5 | 8014 | static int detect_controller_lockup(struct ctlr_info *h) |
a0c12413 SC |
8015 | { |
8016 | u64 now; | |
8017 | u32 heartbeat; | |
8018 | unsigned long flags; | |
8019 | ||
a0c12413 SC |
8020 | now = get_jiffies_64(); |
8021 | /* If we've received an interrupt recently, we're ok. */ | |
8022 | if (time_after64(h->last_intr_timestamp + | |
e85c5974 | 8023 | (h->heartbeat_sample_interval), now)) |
25163bd5 | 8024 | return false; |
a0c12413 SC |
8025 | |
8026 | /* | |
8027 | * If we've already checked the heartbeat recently, we're ok. | |
8028 | * This could happen if someone sends us a signal. We | |
8029 | * otherwise don't care about signals in this thread. | |
8030 | */ | |
8031 | if (time_after64(h->last_heartbeat_timestamp + | |
e85c5974 | 8032 | (h->heartbeat_sample_interval), now)) |
25163bd5 | 8033 | return false; |
a0c12413 SC |
8034 | |
8035 | /* If heartbeat has not changed since we last looked, we're not ok. */ | |
8036 | spin_lock_irqsave(&h->lock, flags); | |
8037 | heartbeat = readl(&h->cfgtable->HeartBeat); | |
8038 | spin_unlock_irqrestore(&h->lock, flags); | |
8039 | if (h->last_heartbeat == heartbeat) { | |
8040 | controller_lockup_detected(h); | |
25163bd5 | 8041 | return true; |
a0c12413 SC |
8042 | } |
8043 | ||
8044 | /* We're ok. */ | |
8045 | h->last_heartbeat = heartbeat; | |
8046 | h->last_heartbeat_timestamp = now; | |
25163bd5 | 8047 | return false; |
a0c12413 SC |
8048 | } |
8049 | ||
9846590e | 8050 | static void hpsa_ack_ctlr_events(struct ctlr_info *h) |
76438d08 SC |
8051 | { |
8052 | int i; | |
8053 | char *event_type; | |
8054 | ||
e4aa3e6a SC |
8055 | if (!(h->fw_support & MISC_FW_EVENT_NOTIFY)) |
8056 | return; | |
8057 | ||
76438d08 | 8058 | /* Ask the controller to clear the events we're handling. */ |
1f7cee8c SC |
8059 | if ((h->transMethod & (CFGTBL_Trans_io_accel1 |
8060 | | CFGTBL_Trans_io_accel2)) && | |
76438d08 SC |
8061 | (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE || |
8062 | h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE)) { | |
8063 | ||
8064 | if (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE) | |
8065 | event_type = "state change"; | |
8066 | if (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE) | |
8067 | event_type = "configuration change"; | |
8068 | /* Stop sending new RAID offload reqs via the IO accelerator */ | |
8069 | scsi_block_requests(h->scsi_host); | |
5323ed74 | 8070 | for (i = 0; i < h->ndevices; i++) { |
76438d08 | 8071 | h->dev[i]->offload_enabled = 0; |
5323ed74 DB |
8072 | h->dev[i]->offload_to_be_enabled = 0; |
8073 | } | |
23100dd9 | 8074 | hpsa_drain_accel_commands(h); |
76438d08 SC |
8075 | /* Set 'accelerator path config change' bit */ |
8076 | dev_warn(&h->pdev->dev, | |
8077 | "Acknowledging event: 0x%08x (HP SSD Smart Path %s)\n", | |
8078 | h->events, event_type); | |
8079 | writel(h->events, &(h->cfgtable->clear_event_notify)); | |
8080 | /* Set the "clear event notify field update" bit 6 */ | |
8081 | writel(DOORBELL_CLEAR_EVENTS, h->vaddr + SA5_DOORBELL); | |
8082 | /* Wait until ctlr clears 'clear event notify field', bit 6 */ | |
8083 | hpsa_wait_for_clear_event_notify_ack(h); | |
8084 | scsi_unblock_requests(h->scsi_host); | |
8085 | } else { | |
8086 | /* Acknowledge controller notification events. */ | |
8087 | writel(h->events, &(h->cfgtable->clear_event_notify)); | |
8088 | writel(DOORBELL_CLEAR_EVENTS, h->vaddr + SA5_DOORBELL); | |
8089 | hpsa_wait_for_clear_event_notify_ack(h); | |
8090 | #if 0 | |
8091 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); | |
8092 | hpsa_wait_for_mode_change_ack(h); | |
8093 | #endif | |
8094 | } | |
9846590e | 8095 | return; |
76438d08 SC |
8096 | } |
8097 | ||
8098 | /* Check a register on the controller to see if there are configuration | |
8099 | * changes (added/changed/removed logical drives, etc.) which mean that | |
e863d68e ST |
8100 | * we should rescan the controller for devices. |
8101 | * Also check flag for driver-initiated rescan. | |
76438d08 | 8102 | */ |
9846590e | 8103 | static int hpsa_ctlr_needs_rescan(struct ctlr_info *h) |
76438d08 | 8104 | { |
853633e8 DB |
8105 | if (h->drv_req_rescan) { |
8106 | h->drv_req_rescan = 0; | |
8107 | return 1; | |
8108 | } | |
8109 | ||
76438d08 | 8110 | if (!(h->fw_support & MISC_FW_EVENT_NOTIFY)) |
9846590e | 8111 | return 0; |
76438d08 SC |
8112 | |
8113 | h->events = readl(&(h->cfgtable->event_notify)); | |
9846590e SC |
8114 | return h->events & RESCAN_REQUIRED_EVENT_BITS; |
8115 | } | |
76438d08 | 8116 | |
9846590e SC |
8117 | /* |
8118 | * Check if any of the offline devices have become ready | |
8119 | */ | |
8120 | static int hpsa_offline_devices_ready(struct ctlr_info *h) | |
8121 | { | |
8122 | unsigned long flags; | |
8123 | struct offline_device_entry *d; | |
8124 | struct list_head *this, *tmp; | |
8125 | ||
8126 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
8127 | list_for_each_safe(this, tmp, &h->offline_device_list) { | |
8128 | d = list_entry(this, struct offline_device_entry, | |
8129 | offline_list); | |
8130 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
d1fea47c SC |
8131 | if (!hpsa_volume_offline(h, d->scsi3addr)) { |
8132 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
8133 | list_del(&d->offline_list); | |
8134 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
9846590e | 8135 | return 1; |
d1fea47c | 8136 | } |
9846590e SC |
8137 | spin_lock_irqsave(&h->offline_device_lock, flags); |
8138 | } | |
8139 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
8140 | return 0; | |
76438d08 SC |
8141 | } |
8142 | ||
34592254 ST |
8143 | static int hpsa_luns_changed(struct ctlr_info *h) |
8144 | { | |
8145 | int rc = 1; /* assume there are changes */ | |
8146 | struct ReportLUNdata *logdev = NULL; | |
8147 | ||
8148 | /* if we can't find out if lun data has changed, | |
8149 | * assume that it has. | |
8150 | */ | |
8151 | ||
8152 | if (!h->lastlogicals) | |
7e8a9486 | 8153 | return rc; |
34592254 ST |
8154 | |
8155 | logdev = kzalloc(sizeof(*logdev), GFP_KERNEL); | |
7e8a9486 AK |
8156 | if (!logdev) |
8157 | return rc; | |
8158 | ||
34592254 ST |
8159 | if (hpsa_scsi_do_report_luns(h, 1, logdev, sizeof(*logdev), 0)) { |
8160 | dev_warn(&h->pdev->dev, | |
8161 | "report luns failed, can't track lun changes.\n"); | |
8162 | goto out; | |
8163 | } | |
8164 | if (memcmp(logdev, h->lastlogicals, sizeof(*logdev))) { | |
8165 | dev_info(&h->pdev->dev, | |
8166 | "Lun changes detected.\n"); | |
8167 | memcpy(h->lastlogicals, logdev, sizeof(*logdev)); | |
8168 | goto out; | |
8169 | } else | |
8170 | rc = 0; /* no changes detected. */ | |
8171 | out: | |
8172 | kfree(logdev); | |
8173 | return rc; | |
8174 | } | |
8175 | ||
3d38f00c | 8176 | static void hpsa_perform_rescan(struct ctlr_info *h) |
a0c12413 | 8177 | { |
3d38f00c | 8178 | struct Scsi_Host *sh = NULL; |
a0c12413 | 8179 | unsigned long flags; |
9846590e | 8180 | |
bfd7546c DB |
8181 | /* |
8182 | * Do the scan after the reset | |
8183 | */ | |
c59d04f3 | 8184 | spin_lock_irqsave(&h->reset_lock, flags); |
bfd7546c DB |
8185 | if (h->reset_in_progress) { |
8186 | h->drv_req_rescan = 1; | |
c59d04f3 | 8187 | spin_unlock_irqrestore(&h->reset_lock, flags); |
bfd7546c DB |
8188 | return; |
8189 | } | |
c59d04f3 | 8190 | spin_unlock_irqrestore(&h->reset_lock, flags); |
bfd7546c | 8191 | |
3d38f00c ST |
8192 | sh = scsi_host_get(h->scsi_host); |
8193 | if (sh != NULL) { | |
8194 | hpsa_scan_start(sh); | |
8195 | scsi_host_put(sh); | |
8196 | h->drv_req_rescan = 0; | |
8197 | } | |
8198 | } | |
8199 | ||
8200 | /* | |
8201 | * watch for controller events | |
8202 | */ | |
8203 | static void hpsa_event_monitor_worker(struct work_struct *work) | |
8204 | { | |
8205 | struct ctlr_info *h = container_of(to_delayed_work(work), | |
8206 | struct ctlr_info, event_monitor_work); | |
8207 | unsigned long flags; | |
8208 | ||
8209 | spin_lock_irqsave(&h->lock, flags); | |
8210 | if (h->remove_in_progress) { | |
8211 | spin_unlock_irqrestore(&h->lock, flags); | |
8212 | return; | |
8213 | } | |
8214 | spin_unlock_irqrestore(&h->lock, flags); | |
8215 | ||
8216 | if (hpsa_ctlr_needs_rescan(h)) { | |
9846590e | 8217 | hpsa_ack_ctlr_events(h); |
3d38f00c ST |
8218 | hpsa_perform_rescan(h); |
8219 | } | |
8220 | ||
8221 | spin_lock_irqsave(&h->lock, flags); | |
8222 | if (!h->remove_in_progress) | |
8223 | schedule_delayed_work(&h->event_monitor_work, | |
8224 | HPSA_EVENT_MONITOR_INTERVAL); | |
8225 | spin_unlock_irqrestore(&h->lock, flags); | |
8226 | } | |
8227 | ||
8228 | static void hpsa_rescan_ctlr_worker(struct work_struct *work) | |
8229 | { | |
8230 | unsigned long flags; | |
8231 | struct ctlr_info *h = container_of(to_delayed_work(work), | |
8232 | struct ctlr_info, rescan_ctlr_work); | |
8233 | ||
8234 | spin_lock_irqsave(&h->lock, flags); | |
8235 | if (h->remove_in_progress) { | |
8236 | spin_unlock_irqrestore(&h->lock, flags); | |
8237 | return; | |
8238 | } | |
8239 | spin_unlock_irqrestore(&h->lock, flags); | |
8240 | ||
8241 | if (h->drv_req_rescan || hpsa_offline_devices_ready(h)) { | |
8242 | hpsa_perform_rescan(h); | |
34592254 | 8243 | } else if (h->discovery_polling) { |
c2adae44 | 8244 | hpsa_disable_rld_caching(h); |
34592254 | 8245 | if (hpsa_luns_changed(h)) { |
34592254 ST |
8246 | dev_info(&h->pdev->dev, |
8247 | "driver discovery polling rescan.\n"); | |
3d38f00c | 8248 | hpsa_perform_rescan(h); |
34592254 | 8249 | } |
9846590e | 8250 | } |
8a98db73 | 8251 | spin_lock_irqsave(&h->lock, flags); |
6636e7f4 DB |
8252 | if (!h->remove_in_progress) |
8253 | queue_delayed_work(h->rescan_ctlr_wq, &h->rescan_ctlr_work, | |
8254 | h->heartbeat_sample_interval); | |
8255 | spin_unlock_irqrestore(&h->lock, flags); | |
8256 | } | |
8257 | ||
8258 | static void hpsa_monitor_ctlr_worker(struct work_struct *work) | |
8259 | { | |
8260 | unsigned long flags; | |
8261 | struct ctlr_info *h = container_of(to_delayed_work(work), | |
8262 | struct ctlr_info, monitor_ctlr_work); | |
8263 | ||
8264 | detect_controller_lockup(h); | |
8265 | if (lockup_detected(h)) | |
a0c12413 | 8266 | return; |
6636e7f4 DB |
8267 | |
8268 | spin_lock_irqsave(&h->lock, flags); | |
8269 | if (!h->remove_in_progress) | |
8270 | schedule_delayed_work(&h->monitor_ctlr_work, | |
8a98db73 SC |
8271 | h->heartbeat_sample_interval); |
8272 | spin_unlock_irqrestore(&h->lock, flags); | |
a0c12413 SC |
8273 | } |
8274 | ||
6636e7f4 DB |
8275 | static struct workqueue_struct *hpsa_create_controller_wq(struct ctlr_info *h, |
8276 | char *name) | |
8277 | { | |
8278 | struct workqueue_struct *wq = NULL; | |
6636e7f4 | 8279 | |
397ea9cb | 8280 | wq = alloc_ordered_workqueue("%s_%d_hpsa", 0, name, h->ctlr); |
6636e7f4 DB |
8281 | if (!wq) |
8282 | dev_err(&h->pdev->dev, "failed to create %s workqueue\n", name); | |
8283 | ||
8284 | return wq; | |
8285 | } | |
8286 | ||
6f039790 | 8287 | static int hpsa_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
edd16368 | 8288 | { |
4c2a8c40 | 8289 | int dac, rc; |
edd16368 | 8290 | struct ctlr_info *h; |
64670ac8 SC |
8291 | int try_soft_reset = 0; |
8292 | unsigned long flags; | |
6b6c1cd7 | 8293 | u32 board_id; |
edd16368 SC |
8294 | |
8295 | if (number_of_controllers == 0) | |
8296 | printk(KERN_INFO DRIVER_NAME "\n"); | |
edd16368 | 8297 | |
135ae6ed | 8298 | rc = hpsa_lookup_board_id(pdev, &board_id, NULL); |
6b6c1cd7 TH |
8299 | if (rc < 0) { |
8300 | dev_warn(&pdev->dev, "Board ID not found\n"); | |
8301 | return rc; | |
8302 | } | |
8303 | ||
8304 | rc = hpsa_init_reset_devices(pdev, board_id); | |
64670ac8 SC |
8305 | if (rc) { |
8306 | if (rc != -ENOTSUPP) | |
8307 | return rc; | |
8308 | /* If the reset fails in a particular way (it has no way to do | |
8309 | * a proper hard reset, so returns -ENOTSUPP) we can try to do | |
8310 | * a soft reset once we get the controller configured up to the | |
8311 | * point that it can accept a command. | |
8312 | */ | |
8313 | try_soft_reset = 1; | |
8314 | rc = 0; | |
8315 | } | |
8316 | ||
8317 | reinit_after_soft_reset: | |
edd16368 | 8318 | |
303932fd DB |
8319 | /* Command structures must be aligned on a 32-byte boundary because |
8320 | * the 5 lower bits of the address are used by the hardware. and by | |
8321 | * the driver. See comments in hpsa.h for more info. | |
8322 | */ | |
303932fd | 8323 | BUILD_BUG_ON(sizeof(struct CommandList) % COMMANDLIST_ALIGNMENT); |
edd16368 | 8324 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
105a3dbc RE |
8325 | if (!h) { |
8326 | dev_err(&pdev->dev, "Failed to allocate controller head\n"); | |
ecd9aad4 | 8327 | return -ENOMEM; |
105a3dbc | 8328 | } |
edd16368 | 8329 | |
55c06c71 | 8330 | h->pdev = pdev; |
105a3dbc | 8331 | |
a9a3a273 | 8332 | h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT; |
9846590e | 8333 | INIT_LIST_HEAD(&h->offline_device_list); |
6eaf46fd | 8334 | spin_lock_init(&h->lock); |
9846590e | 8335 | spin_lock_init(&h->offline_device_lock); |
6eaf46fd | 8336 | spin_lock_init(&h->scan_lock); |
c59d04f3 | 8337 | spin_lock_init(&h->reset_lock); |
34f0c627 | 8338 | atomic_set(&h->passthru_cmds_avail, HPSA_MAX_CONCURRENT_PASSTHRUS); |
094963da SC |
8339 | |
8340 | /* Allocate and clear per-cpu variable lockup_detected */ | |
8341 | h->lockup_detected = alloc_percpu(u32); | |
2a5ac326 | 8342 | if (!h->lockup_detected) { |
105a3dbc | 8343 | dev_err(&h->pdev->dev, "Failed to allocate lockup detector\n"); |
2a5ac326 | 8344 | rc = -ENOMEM; |
2efa5929 | 8345 | goto clean1; /* aer/h */ |
2a5ac326 | 8346 | } |
094963da SC |
8347 | set_lockup_detected_for_all_cpus(h, 0); |
8348 | ||
55c06c71 | 8349 | rc = hpsa_pci_init(h); |
105a3dbc | 8350 | if (rc) |
2946e82b RE |
8351 | goto clean2; /* lu, aer/h */ |
8352 | ||
8353 | /* relies on h-> settings made by hpsa_pci_init, including | |
8354 | * interrupt_mode h->intr */ | |
8355 | rc = hpsa_scsi_host_alloc(h); | |
8356 | if (rc) | |
8357 | goto clean2_5; /* pci, lu, aer/h */ | |
edd16368 | 8358 | |
2946e82b | 8359 | sprintf(h->devname, HPSA "%d", h->scsi_host->host_no); |
edd16368 SC |
8360 | h->ctlr = number_of_controllers; |
8361 | number_of_controllers++; | |
edd16368 SC |
8362 | |
8363 | /* configure PCI DMA stuff */ | |
ecd9aad4 SC |
8364 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
8365 | if (rc == 0) { | |
edd16368 | 8366 | dac = 1; |
ecd9aad4 SC |
8367 | } else { |
8368 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
8369 | if (rc == 0) { | |
8370 | dac = 0; | |
8371 | } else { | |
8372 | dev_err(&pdev->dev, "no suitable DMA available\n"); | |
2946e82b | 8373 | goto clean3; /* shost, pci, lu, aer/h */ |
ecd9aad4 | 8374 | } |
edd16368 SC |
8375 | } |
8376 | ||
8377 | /* make sure the board interrupts are off */ | |
8378 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
10f66018 | 8379 | |
105a3dbc RE |
8380 | rc = hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx); |
8381 | if (rc) | |
2946e82b | 8382 | goto clean3; /* shost, pci, lu, aer/h */ |
d37ffbe4 | 8383 | rc = hpsa_alloc_cmd_pool(h); |
8947fd10 | 8384 | if (rc) |
2946e82b | 8385 | goto clean4; /* irq, shost, pci, lu, aer/h */ |
105a3dbc RE |
8386 | rc = hpsa_alloc_sg_chain_blocks(h); |
8387 | if (rc) | |
2946e82b | 8388 | goto clean5; /* cmd, irq, shost, pci, lu, aer/h */ |
a08a8471 | 8389 | init_waitqueue_head(&h->scan_wait_queue); |
d604f533 WS |
8390 | init_waitqueue_head(&h->event_sync_wait_queue); |
8391 | mutex_init(&h->reset_mutex); | |
a08a8471 | 8392 | h->scan_finished = 1; /* no scan currently in progress */ |
87b9e6aa | 8393 | h->scan_waiting = 0; |
edd16368 SC |
8394 | |
8395 | pci_set_drvdata(pdev, h); | |
9a41338e | 8396 | h->ndevices = 0; |
2946e82b | 8397 | |
9a41338e | 8398 | spin_lock_init(&h->devlock); |
105a3dbc RE |
8399 | rc = hpsa_put_ctlr_into_performant_mode(h); |
8400 | if (rc) | |
2946e82b RE |
8401 | goto clean6; /* sg, cmd, irq, shost, pci, lu, aer/h */ |
8402 | ||
2efa5929 RE |
8403 | /* create the resubmit workqueue */ |
8404 | h->rescan_ctlr_wq = hpsa_create_controller_wq(h, "rescan"); | |
8405 | if (!h->rescan_ctlr_wq) { | |
8406 | rc = -ENOMEM; | |
8407 | goto clean7; | |
8408 | } | |
8409 | ||
8410 | h->resubmit_wq = hpsa_create_controller_wq(h, "resubmit"); | |
8411 | if (!h->resubmit_wq) { | |
8412 | rc = -ENOMEM; | |
8413 | goto clean7; /* aer/h */ | |
8414 | } | |
64670ac8 | 8415 | |
105a3dbc RE |
8416 | /* |
8417 | * At this point, the controller is ready to take commands. | |
64670ac8 SC |
8418 | * Now, if reset_devices and the hard reset didn't work, try |
8419 | * the soft reset and see if that works. | |
8420 | */ | |
8421 | if (try_soft_reset) { | |
8422 | ||
8423 | /* This is kind of gross. We may or may not get a completion | |
8424 | * from the soft reset command, and if we do, then the value | |
8425 | * from the fifo may or may not be valid. So, we wait 10 secs | |
8426 | * after the reset throwing away any completions we get during | |
8427 | * that time. Unregister the interrupt handler and register | |
8428 | * fake ones to scoop up any residual completions. | |
8429 | */ | |
8430 | spin_lock_irqsave(&h->lock, flags); | |
8431 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
8432 | spin_unlock_irqrestore(&h->lock, flags); | |
ec501a18 | 8433 | hpsa_free_irqs(h); |
9ee61794 | 8434 | rc = hpsa_request_irqs(h, hpsa_msix_discard_completions, |
64670ac8 SC |
8435 | hpsa_intx_discard_completions); |
8436 | if (rc) { | |
9ee61794 RE |
8437 | dev_warn(&h->pdev->dev, |
8438 | "Failed to request_irq after soft reset.\n"); | |
d498757c | 8439 | /* |
b2ef480c RE |
8440 | * cannot goto clean7 or free_irqs will be called |
8441 | * again. Instead, do its work | |
8442 | */ | |
8443 | hpsa_free_performant_mode(h); /* clean7 */ | |
8444 | hpsa_free_sg_chain_blocks(h); /* clean6 */ | |
8445 | hpsa_free_cmd_pool(h); /* clean5 */ | |
8446 | /* | |
8447 | * skip hpsa_free_irqs(h) clean4 since that | |
8448 | * was just called before request_irqs failed | |
d498757c RE |
8449 | */ |
8450 | goto clean3; | |
64670ac8 SC |
8451 | } |
8452 | ||
8453 | rc = hpsa_kdump_soft_reset(h); | |
8454 | if (rc) | |
8455 | /* Neither hard nor soft reset worked, we're hosed. */ | |
7ef7323f | 8456 | goto clean7; |
64670ac8 SC |
8457 | |
8458 | dev_info(&h->pdev->dev, "Board READY.\n"); | |
8459 | dev_info(&h->pdev->dev, | |
8460 | "Waiting for stale completions to drain.\n"); | |
8461 | h->access.set_intr_mask(h, HPSA_INTR_ON); | |
8462 | msleep(10000); | |
8463 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
8464 | ||
8465 | rc = controller_reset_failed(h->cfgtable); | |
8466 | if (rc) | |
8467 | dev_info(&h->pdev->dev, | |
8468 | "Soft reset appears to have failed.\n"); | |
8469 | ||
8470 | /* since the controller's reset, we have to go back and re-init | |
8471 | * everything. Easiest to just forget what we've done and do it | |
8472 | * all over again. | |
8473 | */ | |
8474 | hpsa_undo_allocations_after_kdump_soft_reset(h); | |
8475 | try_soft_reset = 0; | |
8476 | if (rc) | |
b2ef480c | 8477 | /* don't goto clean, we already unallocated */ |
64670ac8 SC |
8478 | return -ENODEV; |
8479 | ||
8480 | goto reinit_after_soft_reset; | |
8481 | } | |
edd16368 | 8482 | |
105a3dbc RE |
8483 | /* Enable Accelerated IO path at driver layer */ |
8484 | h->acciopath_status = 1; | |
34592254 ST |
8485 | /* Disable discovery polling.*/ |
8486 | h->discovery_polling = 0; | |
da0697bd | 8487 | |
e863d68e | 8488 | |
edd16368 SC |
8489 | /* Turn the interrupts on so we can service requests */ |
8490 | h->access.set_intr_mask(h, HPSA_INTR_ON); | |
8491 | ||
339b2b14 | 8492 | hpsa_hba_inquiry(h); |
8a98db73 | 8493 | |
34592254 ST |
8494 | h->lastlogicals = kzalloc(sizeof(*(h->lastlogicals)), GFP_KERNEL); |
8495 | if (!h->lastlogicals) | |
8496 | dev_info(&h->pdev->dev, | |
8497 | "Can't track change to report lun data\n"); | |
8498 | ||
cf477237 DB |
8499 | /* hook into SCSI subsystem */ |
8500 | rc = hpsa_scsi_add_host(h); | |
8501 | if (rc) | |
8502 | goto clean7; /* perf, sg, cmd, irq, shost, pci, lu, aer/h */ | |
8503 | ||
8a98db73 SC |
8504 | /* Monitor the controller for firmware lockups */ |
8505 | h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL; | |
8506 | INIT_DELAYED_WORK(&h->monitor_ctlr_work, hpsa_monitor_ctlr_worker); | |
8507 | schedule_delayed_work(&h->monitor_ctlr_work, | |
8508 | h->heartbeat_sample_interval); | |
6636e7f4 DB |
8509 | INIT_DELAYED_WORK(&h->rescan_ctlr_work, hpsa_rescan_ctlr_worker); |
8510 | queue_delayed_work(h->rescan_ctlr_wq, &h->rescan_ctlr_work, | |
8511 | h->heartbeat_sample_interval); | |
3d38f00c ST |
8512 | INIT_DELAYED_WORK(&h->event_monitor_work, hpsa_event_monitor_worker); |
8513 | schedule_delayed_work(&h->event_monitor_work, | |
8514 | HPSA_EVENT_MONITOR_INTERVAL); | |
88bf6d62 | 8515 | return 0; |
edd16368 | 8516 | |
2946e82b | 8517 | clean7: /* perf, sg, cmd, irq, shost, pci, lu, aer/h */ |
105a3dbc RE |
8518 | hpsa_free_performant_mode(h); |
8519 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
8520 | clean6: /* sg, cmd, irq, pci, lockup, wq/aer/h */ | |
33a2ffce | 8521 | hpsa_free_sg_chain_blocks(h); |
2946e82b | 8522 | clean5: /* cmd, irq, shost, pci, lu, aer/h */ |
2e9d1b36 | 8523 | hpsa_free_cmd_pool(h); |
2946e82b | 8524 | clean4: /* irq, shost, pci, lu, aer/h */ |
ec501a18 | 8525 | hpsa_free_irqs(h); |
2946e82b RE |
8526 | clean3: /* shost, pci, lu, aer/h */ |
8527 | scsi_host_put(h->scsi_host); | |
8528 | h->scsi_host = NULL; | |
8529 | clean2_5: /* pci, lu, aer/h */ | |
195f2c65 | 8530 | hpsa_free_pci_init(h); |
2946e82b | 8531 | clean2: /* lu, aer/h */ |
105a3dbc RE |
8532 | if (h->lockup_detected) { |
8533 | free_percpu(h->lockup_detected); | |
8534 | h->lockup_detected = NULL; | |
8535 | } | |
8536 | clean1: /* wq/aer/h */ | |
8537 | if (h->resubmit_wq) { | |
080ef1cc | 8538 | destroy_workqueue(h->resubmit_wq); |
105a3dbc RE |
8539 | h->resubmit_wq = NULL; |
8540 | } | |
8541 | if (h->rescan_ctlr_wq) { | |
6636e7f4 | 8542 | destroy_workqueue(h->rescan_ctlr_wq); |
105a3dbc RE |
8543 | h->rescan_ctlr_wq = NULL; |
8544 | } | |
edd16368 | 8545 | kfree(h); |
ecd9aad4 | 8546 | return rc; |
edd16368 SC |
8547 | } |
8548 | ||
8549 | static void hpsa_flush_cache(struct ctlr_info *h) | |
8550 | { | |
8551 | char *flush_buf; | |
8552 | struct CommandList *c; | |
25163bd5 | 8553 | int rc; |
702890e3 | 8554 | |
094963da | 8555 | if (unlikely(lockup_detected(h))) |
702890e3 | 8556 | return; |
edd16368 SC |
8557 | flush_buf = kzalloc(4, GFP_KERNEL); |
8558 | if (!flush_buf) | |
8559 | return; | |
8560 | ||
45fcb86e | 8561 | c = cmd_alloc(h); |
bf43caf3 | 8562 | |
a2dac136 SC |
8563 | if (fill_cmd(c, HPSA_CACHE_FLUSH, h, flush_buf, 4, 0, |
8564 | RAID_CTLR_LUNID, TYPE_CMD)) { | |
8565 | goto out; | |
8566 | } | |
25163bd5 | 8567 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
c448ecfa | 8568 | PCI_DMA_TODEVICE, DEFAULT_TIMEOUT); |
25163bd5 WS |
8569 | if (rc) |
8570 | goto out; | |
edd16368 | 8571 | if (c->err_info->CommandStatus != 0) |
a2dac136 | 8572 | out: |
edd16368 SC |
8573 | dev_warn(&h->pdev->dev, |
8574 | "error flushing cache on controller\n"); | |
45fcb86e | 8575 | cmd_free(h, c); |
edd16368 SC |
8576 | kfree(flush_buf); |
8577 | } | |
8578 | ||
c2adae44 ST |
8579 | /* Make controller gather fresh report lun data each time we |
8580 | * send down a report luns request | |
8581 | */ | |
8582 | static void hpsa_disable_rld_caching(struct ctlr_info *h) | |
8583 | { | |
8584 | u32 *options; | |
8585 | struct CommandList *c; | |
8586 | int rc; | |
8587 | ||
8588 | /* Don't bother trying to set diag options if locked up */ | |
8589 | if (unlikely(h->lockup_detected)) | |
8590 | return; | |
8591 | ||
8592 | options = kzalloc(sizeof(*options), GFP_KERNEL); | |
7e8a9486 | 8593 | if (!options) |
c2adae44 | 8594 | return; |
c2adae44 ST |
8595 | |
8596 | c = cmd_alloc(h); | |
8597 | ||
8598 | /* first, get the current diag options settings */ | |
8599 | if (fill_cmd(c, BMIC_SENSE_DIAG_OPTIONS, h, options, 4, 0, | |
8600 | RAID_CTLR_LUNID, TYPE_CMD)) | |
8601 | goto errout; | |
8602 | ||
8603 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, | |
c448ecfa | 8604 | PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT); |
c2adae44 ST |
8605 | if ((rc != 0) || (c->err_info->CommandStatus != 0)) |
8606 | goto errout; | |
8607 | ||
8608 | /* Now, set the bit for disabling the RLD caching */ | |
8609 | *options |= HPSA_DIAG_OPTS_DISABLE_RLD_CACHING; | |
8610 | ||
8611 | if (fill_cmd(c, BMIC_SET_DIAG_OPTIONS, h, options, 4, 0, | |
8612 | RAID_CTLR_LUNID, TYPE_CMD)) | |
8613 | goto errout; | |
8614 | ||
8615 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, | |
c448ecfa | 8616 | PCI_DMA_TODEVICE, DEFAULT_TIMEOUT); |
c2adae44 ST |
8617 | if ((rc != 0) || (c->err_info->CommandStatus != 0)) |
8618 | goto errout; | |
8619 | ||
8620 | /* Now verify that it got set: */ | |
8621 | if (fill_cmd(c, BMIC_SENSE_DIAG_OPTIONS, h, options, 4, 0, | |
8622 | RAID_CTLR_LUNID, TYPE_CMD)) | |
8623 | goto errout; | |
8624 | ||
8625 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, | |
c448ecfa | 8626 | PCI_DMA_FROMDEVICE, DEFAULT_TIMEOUT); |
c2adae44 ST |
8627 | if ((rc != 0) || (c->err_info->CommandStatus != 0)) |
8628 | goto errout; | |
8629 | ||
d8a080c3 | 8630 | if (*options & HPSA_DIAG_OPTS_DISABLE_RLD_CACHING) |
c2adae44 ST |
8631 | goto out; |
8632 | ||
8633 | errout: | |
8634 | dev_err(&h->pdev->dev, | |
8635 | "Error: failed to disable report lun data caching.\n"); | |
8636 | out: | |
8637 | cmd_free(h, c); | |
8638 | kfree(options); | |
8639 | } | |
8640 | ||
edd16368 SC |
8641 | static void hpsa_shutdown(struct pci_dev *pdev) |
8642 | { | |
8643 | struct ctlr_info *h; | |
8644 | ||
8645 | h = pci_get_drvdata(pdev); | |
8646 | /* Turn board interrupts off and send the flush cache command | |
8647 | * sendcmd will turn off interrupt, and send the flush... | |
8648 | * To write all data in the battery backed cache to disks | |
8649 | */ | |
8650 | hpsa_flush_cache(h); | |
8651 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
105a3dbc | 8652 | hpsa_free_irqs(h); /* init_one 4 */ |
cc64c817 | 8653 | hpsa_disable_interrupt_mode(h); /* pci_init 2 */ |
edd16368 SC |
8654 | } |
8655 | ||
6f039790 | 8656 | static void hpsa_free_device_info(struct ctlr_info *h) |
55e14e76 SC |
8657 | { |
8658 | int i; | |
8659 | ||
105a3dbc | 8660 | for (i = 0; i < h->ndevices; i++) { |
55e14e76 | 8661 | kfree(h->dev[i]); |
105a3dbc RE |
8662 | h->dev[i] = NULL; |
8663 | } | |
55e14e76 SC |
8664 | } |
8665 | ||
6f039790 | 8666 | static void hpsa_remove_one(struct pci_dev *pdev) |
edd16368 SC |
8667 | { |
8668 | struct ctlr_info *h; | |
8a98db73 | 8669 | unsigned long flags; |
edd16368 SC |
8670 | |
8671 | if (pci_get_drvdata(pdev) == NULL) { | |
a0c12413 | 8672 | dev_err(&pdev->dev, "unable to remove device\n"); |
edd16368 SC |
8673 | return; |
8674 | } | |
8675 | h = pci_get_drvdata(pdev); | |
8a98db73 SC |
8676 | |
8677 | /* Get rid of any controller monitoring work items */ | |
8678 | spin_lock_irqsave(&h->lock, flags); | |
8679 | h->remove_in_progress = 1; | |
8a98db73 | 8680 | spin_unlock_irqrestore(&h->lock, flags); |
6636e7f4 DB |
8681 | cancel_delayed_work_sync(&h->monitor_ctlr_work); |
8682 | cancel_delayed_work_sync(&h->rescan_ctlr_work); | |
3d38f00c | 8683 | cancel_delayed_work_sync(&h->event_monitor_work); |
6636e7f4 DB |
8684 | destroy_workqueue(h->rescan_ctlr_wq); |
8685 | destroy_workqueue(h->resubmit_wq); | |
cc64c817 | 8686 | |
2d041306 DB |
8687 | /* |
8688 | * Call before disabling interrupts. | |
8689 | * scsi_remove_host can trigger I/O operations especially | |
8690 | * when multipath is enabled. There can be SYNCHRONIZE CACHE | |
8691 | * operations which cannot complete and will hang the system. | |
8692 | */ | |
8693 | if (h->scsi_host) | |
8694 | scsi_remove_host(h->scsi_host); /* init_one 8 */ | |
105a3dbc | 8695 | /* includes hpsa_free_irqs - init_one 4 */ |
195f2c65 | 8696 | /* includes hpsa_disable_interrupt_mode - pci_init 2 */ |
edd16368 | 8697 | hpsa_shutdown(pdev); |
cc64c817 | 8698 | |
105a3dbc RE |
8699 | hpsa_free_device_info(h); /* scan */ |
8700 | ||
2946e82b RE |
8701 | kfree(h->hba_inquiry_data); /* init_one 10 */ |
8702 | h->hba_inquiry_data = NULL; /* init_one 10 */ | |
2946e82b | 8703 | hpsa_free_ioaccel2_sg_chain_blocks(h); |
105a3dbc RE |
8704 | hpsa_free_performant_mode(h); /* init_one 7 */ |
8705 | hpsa_free_sg_chain_blocks(h); /* init_one 6 */ | |
8706 | hpsa_free_cmd_pool(h); /* init_one 5 */ | |
34592254 | 8707 | kfree(h->lastlogicals); |
105a3dbc RE |
8708 | |
8709 | /* hpsa_free_irqs already called via hpsa_shutdown init_one 4 */ | |
195f2c65 | 8710 | |
2946e82b RE |
8711 | scsi_host_put(h->scsi_host); /* init_one 3 */ |
8712 | h->scsi_host = NULL; /* init_one 3 */ | |
8713 | ||
195f2c65 | 8714 | /* includes hpsa_disable_interrupt_mode - pci_init 2 */ |
2946e82b | 8715 | hpsa_free_pci_init(h); /* init_one 2.5 */ |
195f2c65 | 8716 | |
105a3dbc RE |
8717 | free_percpu(h->lockup_detected); /* init_one 2 */ |
8718 | h->lockup_detected = NULL; /* init_one 2 */ | |
8719 | /* (void) pci_disable_pcie_error_reporting(pdev); */ /* init_one 1 */ | |
d04e62b9 KB |
8720 | |
8721 | hpsa_delete_sas_host(h); | |
8722 | ||
105a3dbc | 8723 | kfree(h); /* init_one 1 */ |
edd16368 SC |
8724 | } |
8725 | ||
8726 | static int hpsa_suspend(__attribute__((unused)) struct pci_dev *pdev, | |
8727 | __attribute__((unused)) pm_message_t state) | |
8728 | { | |
8729 | return -ENOSYS; | |
8730 | } | |
8731 | ||
8732 | static int hpsa_resume(__attribute__((unused)) struct pci_dev *pdev) | |
8733 | { | |
8734 | return -ENOSYS; | |
8735 | } | |
8736 | ||
8737 | static struct pci_driver hpsa_pci_driver = { | |
f79cfec6 | 8738 | .name = HPSA, |
edd16368 | 8739 | .probe = hpsa_init_one, |
6f039790 | 8740 | .remove = hpsa_remove_one, |
edd16368 SC |
8741 | .id_table = hpsa_pci_device_id, /* id_table */ |
8742 | .shutdown = hpsa_shutdown, | |
8743 | .suspend = hpsa_suspend, | |
8744 | .resume = hpsa_resume, | |
8745 | }; | |
8746 | ||
303932fd DB |
8747 | /* Fill in bucket_map[], given nsgs (the max number of |
8748 | * scatter gather elements supported) and bucket[], | |
8749 | * which is an array of 8 integers. The bucket[] array | |
8750 | * contains 8 different DMA transfer sizes (in 16 | |
8751 | * byte increments) which the controller uses to fetch | |
8752 | * commands. This function fills in bucket_map[], which | |
8753 | * maps a given number of scatter gather elements to one of | |
8754 | * the 8 DMA transfer sizes. The point of it is to allow the | |
8755 | * controller to only do as much DMA as needed to fetch the | |
8756 | * command, with the DMA transfer size encoded in the lower | |
8757 | * bits of the command address. | |
8758 | */ | |
8759 | static void calc_bucket_map(int bucket[], int num_buckets, | |
2b08b3e9 | 8760 | int nsgs, int min_blocks, u32 *bucket_map) |
303932fd DB |
8761 | { |
8762 | int i, j, b, size; | |
8763 | ||
303932fd DB |
8764 | /* Note, bucket_map must have nsgs+1 entries. */ |
8765 | for (i = 0; i <= nsgs; i++) { | |
8766 | /* Compute size of a command with i SG entries */ | |
e1f7de0c | 8767 | size = i + min_blocks; |
303932fd DB |
8768 | b = num_buckets; /* Assume the biggest bucket */ |
8769 | /* Find the bucket that is just big enough */ | |
e1f7de0c | 8770 | for (j = 0; j < num_buckets; j++) { |
303932fd DB |
8771 | if (bucket[j] >= size) { |
8772 | b = j; | |
8773 | break; | |
8774 | } | |
8775 | } | |
8776 | /* for a command with i SG entries, use bucket b. */ | |
8777 | bucket_map[i] = b; | |
8778 | } | |
8779 | } | |
8780 | ||
105a3dbc RE |
8781 | /* |
8782 | * return -ENODEV on err, 0 on success (or no action) | |
8783 | * allocates numerous items that must be freed later | |
8784 | */ | |
c706a795 | 8785 | static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support) |
303932fd | 8786 | { |
6c311b57 SC |
8787 | int i; |
8788 | unsigned long register_value; | |
e1f7de0c MG |
8789 | unsigned long transMethod = CFGTBL_Trans_Performant | |
8790 | (trans_support & CFGTBL_Trans_use_short_tags) | | |
b9af4937 SC |
8791 | CFGTBL_Trans_enable_directed_msix | |
8792 | (trans_support & (CFGTBL_Trans_io_accel1 | | |
8793 | CFGTBL_Trans_io_accel2)); | |
e1f7de0c | 8794 | struct access_method access = SA5_performant_access; |
def342bd SC |
8795 | |
8796 | /* This is a bit complicated. There are 8 registers on | |
8797 | * the controller which we write to to tell it 8 different | |
8798 | * sizes of commands which there may be. It's a way of | |
8799 | * reducing the DMA done to fetch each command. Encoded into | |
8800 | * each command's tag are 3 bits which communicate to the controller | |
8801 | * which of the eight sizes that command fits within. The size of | |
8802 | * each command depends on how many scatter gather entries there are. | |
8803 | * Each SG entry requires 16 bytes. The eight registers are programmed | |
8804 | * with the number of 16-byte blocks a command of that size requires. | |
8805 | * The smallest command possible requires 5 such 16 byte blocks. | |
d66ae08b | 8806 | * the largest command possible requires SG_ENTRIES_IN_CMD + 4 16-byte |
def342bd SC |
8807 | * blocks. Note, this only extends to the SG entries contained |
8808 | * within the command block, and does not extend to chained blocks | |
8809 | * of SG elements. bft[] contains the eight values we write to | |
8810 | * the registers. They are not evenly distributed, but have more | |
8811 | * sizes for small commands, and fewer sizes for larger commands. | |
8812 | */ | |
d66ae08b | 8813 | int bft[8] = {5, 6, 8, 10, 12, 20, 28, SG_ENTRIES_IN_CMD + 4}; |
b9af4937 SC |
8814 | #define MIN_IOACCEL2_BFT_ENTRY 5 |
8815 | #define HPSA_IOACCEL2_HEADER_SZ 4 | |
8816 | int bft2[16] = {MIN_IOACCEL2_BFT_ENTRY, 6, 7, 8, 9, 10, 11, 12, | |
8817 | 13, 14, 15, 16, 17, 18, 19, | |
8818 | HPSA_IOACCEL2_HEADER_SZ + IOACCEL2_MAXSGENTRIES}; | |
8819 | BUILD_BUG_ON(ARRAY_SIZE(bft2) != 16); | |
8820 | BUILD_BUG_ON(ARRAY_SIZE(bft) != 8); | |
8821 | BUILD_BUG_ON(offsetof(struct io_accel2_cmd, sg) > | |
8822 | 16 * MIN_IOACCEL2_BFT_ENTRY); | |
8823 | BUILD_BUG_ON(sizeof(struct ioaccel2_sg_element) != 16); | |
d66ae08b | 8824 | BUILD_BUG_ON(28 > SG_ENTRIES_IN_CMD + 4); |
303932fd DB |
8825 | /* 5 = 1 s/g entry or 4k |
8826 | * 6 = 2 s/g entry or 8k | |
8827 | * 8 = 4 s/g entry or 16k | |
8828 | * 10 = 6 s/g entry or 24k | |
8829 | */ | |
303932fd | 8830 | |
b3a52e79 SC |
8831 | /* If the controller supports either ioaccel method then |
8832 | * we can also use the RAID stack submit path that does not | |
8833 | * perform the superfluous readl() after each command submission. | |
8834 | */ | |
8835 | if (trans_support & (CFGTBL_Trans_io_accel1 | CFGTBL_Trans_io_accel2)) | |
8836 | access = SA5_performant_access_no_read; | |
8837 | ||
303932fd | 8838 | /* Controller spec: zero out this buffer. */ |
072b0518 SC |
8839 | for (i = 0; i < h->nreply_queues; i++) |
8840 | memset(h->reply_queue[i].head, 0, h->reply_queue_size); | |
303932fd | 8841 | |
d66ae08b SC |
8842 | bft[7] = SG_ENTRIES_IN_CMD + 4; |
8843 | calc_bucket_map(bft, ARRAY_SIZE(bft), | |
e1f7de0c | 8844 | SG_ENTRIES_IN_CMD, 4, h->blockFetchTable); |
303932fd DB |
8845 | for (i = 0; i < 8; i++) |
8846 | writel(bft[i], &h->transtable->BlockFetch[i]); | |
8847 | ||
8848 | /* size of controller ring buffer */ | |
8849 | writel(h->max_commands, &h->transtable->RepQSize); | |
254f796b | 8850 | writel(h->nreply_queues, &h->transtable->RepQCount); |
303932fd DB |
8851 | writel(0, &h->transtable->RepQCtrAddrLow32); |
8852 | writel(0, &h->transtable->RepQCtrAddrHigh32); | |
254f796b MG |
8853 | |
8854 | for (i = 0; i < h->nreply_queues; i++) { | |
8855 | writel(0, &h->transtable->RepQAddr[i].upper); | |
072b0518 | 8856 | writel(h->reply_queue[i].busaddr, |
254f796b MG |
8857 | &h->transtable->RepQAddr[i].lower); |
8858 | } | |
8859 | ||
b9af4937 | 8860 | writel(0, &h->cfgtable->HostWrite.command_pool_addr_hi); |
e1f7de0c MG |
8861 | writel(transMethod, &(h->cfgtable->HostWrite.TransportRequest)); |
8862 | /* | |
8863 | * enable outbound interrupt coalescing in accelerator mode; | |
8864 | */ | |
8865 | if (trans_support & CFGTBL_Trans_io_accel1) { | |
8866 | access = SA5_ioaccel_mode1_access; | |
8867 | writel(10, &h->cfgtable->HostWrite.CoalIntDelay); | |
8868 | writel(4, &h->cfgtable->HostWrite.CoalIntCount); | |
96b6ce4e DB |
8869 | } else |
8870 | if (trans_support & CFGTBL_Trans_io_accel2) | |
c349775e | 8871 | access = SA5_ioaccel_mode2_access; |
303932fd | 8872 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); |
c706a795 RE |
8873 | if (hpsa_wait_for_mode_change_ack(h)) { |
8874 | dev_err(&h->pdev->dev, | |
8875 | "performant mode problem - doorbell timeout\n"); | |
8876 | return -ENODEV; | |
8877 | } | |
303932fd DB |
8878 | register_value = readl(&(h->cfgtable->TransportActive)); |
8879 | if (!(register_value & CFGTBL_Trans_Performant)) { | |
050f7147 SC |
8880 | dev_err(&h->pdev->dev, |
8881 | "performant mode problem - transport not active\n"); | |
c706a795 | 8882 | return -ENODEV; |
303932fd | 8883 | } |
960a30e7 | 8884 | /* Change the access methods to the performant access methods */ |
e1f7de0c MG |
8885 | h->access = access; |
8886 | h->transMethod = transMethod; | |
8887 | ||
b9af4937 SC |
8888 | if (!((trans_support & CFGTBL_Trans_io_accel1) || |
8889 | (trans_support & CFGTBL_Trans_io_accel2))) | |
c706a795 | 8890 | return 0; |
e1f7de0c | 8891 | |
b9af4937 SC |
8892 | if (trans_support & CFGTBL_Trans_io_accel1) { |
8893 | /* Set up I/O accelerator mode */ | |
8894 | for (i = 0; i < h->nreply_queues; i++) { | |
8895 | writel(i, h->vaddr + IOACCEL_MODE1_REPLY_QUEUE_INDEX); | |
8896 | h->reply_queue[i].current_entry = | |
8897 | readl(h->vaddr + IOACCEL_MODE1_PRODUCER_INDEX); | |
8898 | } | |
8899 | bft[7] = h->ioaccel_maxsg + 8; | |
8900 | calc_bucket_map(bft, ARRAY_SIZE(bft), h->ioaccel_maxsg, 8, | |
8901 | h->ioaccel1_blockFetchTable); | |
e1f7de0c | 8902 | |
b9af4937 | 8903 | /* initialize all reply queue entries to unused */ |
072b0518 SC |
8904 | for (i = 0; i < h->nreply_queues; i++) |
8905 | memset(h->reply_queue[i].head, | |
8906 | (u8) IOACCEL_MODE1_REPLY_UNUSED, | |
8907 | h->reply_queue_size); | |
e1f7de0c | 8908 | |
b9af4937 SC |
8909 | /* set all the constant fields in the accelerator command |
8910 | * frames once at init time to save CPU cycles later. | |
8911 | */ | |
8912 | for (i = 0; i < h->nr_cmds; i++) { | |
8913 | struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[i]; | |
8914 | ||
8915 | cp->function = IOACCEL1_FUNCTION_SCSIIO; | |
8916 | cp->err_info = (u32) (h->errinfo_pool_dhandle + | |
8917 | (i * sizeof(struct ErrorInfo))); | |
8918 | cp->err_info_len = sizeof(struct ErrorInfo); | |
8919 | cp->sgl_offset = IOACCEL1_SGLOFFSET; | |
2b08b3e9 DB |
8920 | cp->host_context_flags = |
8921 | cpu_to_le16(IOACCEL1_HCFLAGS_CISS_FORMAT); | |
b9af4937 SC |
8922 | cp->timeout_sec = 0; |
8923 | cp->ReplyQueue = 0; | |
50a0decf | 8924 | cp->tag = |
f2405db8 | 8925 | cpu_to_le64((i << DIRECT_LOOKUP_SHIFT)); |
50a0decf SC |
8926 | cp->host_addr = |
8927 | cpu_to_le64(h->ioaccel_cmd_pool_dhandle + | |
b9af4937 | 8928 | (i * sizeof(struct io_accel1_cmd))); |
b9af4937 SC |
8929 | } |
8930 | } else if (trans_support & CFGTBL_Trans_io_accel2) { | |
8931 | u64 cfg_offset, cfg_base_addr_index; | |
8932 | u32 bft2_offset, cfg_base_addr; | |
8933 | int rc; | |
8934 | ||
8935 | rc = hpsa_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr, | |
8936 | &cfg_base_addr_index, &cfg_offset); | |
8937 | BUILD_BUG_ON(offsetof(struct io_accel2_cmd, sg) != 64); | |
8938 | bft2[15] = h->ioaccel_maxsg + HPSA_IOACCEL2_HEADER_SZ; | |
8939 | calc_bucket_map(bft2, ARRAY_SIZE(bft2), h->ioaccel_maxsg, | |
8940 | 4, h->ioaccel2_blockFetchTable); | |
8941 | bft2_offset = readl(&h->cfgtable->io_accel_request_size_offset); | |
8942 | BUILD_BUG_ON(offsetof(struct CfgTable, | |
8943 | io_accel_request_size_offset) != 0xb8); | |
8944 | h->ioaccel2_bft2_regs = | |
8945 | remap_pci_mem(pci_resource_start(h->pdev, | |
8946 | cfg_base_addr_index) + | |
8947 | cfg_offset + bft2_offset, | |
8948 | ARRAY_SIZE(bft2) * | |
8949 | sizeof(*h->ioaccel2_bft2_regs)); | |
8950 | for (i = 0; i < ARRAY_SIZE(bft2); i++) | |
8951 | writel(bft2[i], &h->ioaccel2_bft2_regs[i]); | |
e1f7de0c | 8952 | } |
b9af4937 | 8953 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); |
c706a795 RE |
8954 | if (hpsa_wait_for_mode_change_ack(h)) { |
8955 | dev_err(&h->pdev->dev, | |
8956 | "performant mode problem - enabling ioaccel mode\n"); | |
8957 | return -ENODEV; | |
8958 | } | |
8959 | return 0; | |
e1f7de0c MG |
8960 | } |
8961 | ||
1fb7c98a RE |
8962 | /* Free ioaccel1 mode command blocks and block fetch table */ |
8963 | static void hpsa_free_ioaccel1_cmd_and_bft(struct ctlr_info *h) | |
8964 | { | |
105a3dbc | 8965 | if (h->ioaccel_cmd_pool) { |
1fb7c98a RE |
8966 | pci_free_consistent(h->pdev, |
8967 | h->nr_cmds * sizeof(*h->ioaccel_cmd_pool), | |
8968 | h->ioaccel_cmd_pool, | |
8969 | h->ioaccel_cmd_pool_dhandle); | |
105a3dbc RE |
8970 | h->ioaccel_cmd_pool = NULL; |
8971 | h->ioaccel_cmd_pool_dhandle = 0; | |
8972 | } | |
1fb7c98a | 8973 | kfree(h->ioaccel1_blockFetchTable); |
105a3dbc | 8974 | h->ioaccel1_blockFetchTable = NULL; |
1fb7c98a RE |
8975 | } |
8976 | ||
d37ffbe4 RE |
8977 | /* Allocate ioaccel1 mode command blocks and block fetch table */ |
8978 | static int hpsa_alloc_ioaccel1_cmd_and_bft(struct ctlr_info *h) | |
e1f7de0c | 8979 | { |
283b4a9b SC |
8980 | h->ioaccel_maxsg = |
8981 | readl(&(h->cfgtable->io_accel_max_embedded_sg_count)); | |
8982 | if (h->ioaccel_maxsg > IOACCEL1_MAXSGENTRIES) | |
8983 | h->ioaccel_maxsg = IOACCEL1_MAXSGENTRIES; | |
8984 | ||
e1f7de0c MG |
8985 | /* Command structures must be aligned on a 128-byte boundary |
8986 | * because the 7 lower bits of the address are used by the | |
8987 | * hardware. | |
8988 | */ | |
e1f7de0c MG |
8989 | BUILD_BUG_ON(sizeof(struct io_accel1_cmd) % |
8990 | IOACCEL1_COMMANDLIST_ALIGNMENT); | |
8991 | h->ioaccel_cmd_pool = | |
8992 | pci_alloc_consistent(h->pdev, | |
8993 | h->nr_cmds * sizeof(*h->ioaccel_cmd_pool), | |
8994 | &(h->ioaccel_cmd_pool_dhandle)); | |
8995 | ||
8996 | h->ioaccel1_blockFetchTable = | |
283b4a9b | 8997 | kmalloc(((h->ioaccel_maxsg + 1) * |
e1f7de0c MG |
8998 | sizeof(u32)), GFP_KERNEL); |
8999 | ||
9000 | if ((h->ioaccel_cmd_pool == NULL) || | |
9001 | (h->ioaccel1_blockFetchTable == NULL)) | |
9002 | goto clean_up; | |
9003 | ||
9004 | memset(h->ioaccel_cmd_pool, 0, | |
9005 | h->nr_cmds * sizeof(*h->ioaccel_cmd_pool)); | |
9006 | return 0; | |
9007 | ||
9008 | clean_up: | |
1fb7c98a | 9009 | hpsa_free_ioaccel1_cmd_and_bft(h); |
2dd02d74 | 9010 | return -ENOMEM; |
6c311b57 SC |
9011 | } |
9012 | ||
1fb7c98a RE |
9013 | /* Free ioaccel2 mode command blocks and block fetch table */ |
9014 | static void hpsa_free_ioaccel2_cmd_and_bft(struct ctlr_info *h) | |
9015 | { | |
d9a729f3 WS |
9016 | hpsa_free_ioaccel2_sg_chain_blocks(h); |
9017 | ||
105a3dbc | 9018 | if (h->ioaccel2_cmd_pool) { |
1fb7c98a RE |
9019 | pci_free_consistent(h->pdev, |
9020 | h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool), | |
9021 | h->ioaccel2_cmd_pool, | |
9022 | h->ioaccel2_cmd_pool_dhandle); | |
105a3dbc RE |
9023 | h->ioaccel2_cmd_pool = NULL; |
9024 | h->ioaccel2_cmd_pool_dhandle = 0; | |
9025 | } | |
1fb7c98a | 9026 | kfree(h->ioaccel2_blockFetchTable); |
105a3dbc | 9027 | h->ioaccel2_blockFetchTable = NULL; |
1fb7c98a RE |
9028 | } |
9029 | ||
d37ffbe4 RE |
9030 | /* Allocate ioaccel2 mode command blocks and block fetch table */ |
9031 | static int hpsa_alloc_ioaccel2_cmd_and_bft(struct ctlr_info *h) | |
aca9012a | 9032 | { |
d9a729f3 WS |
9033 | int rc; |
9034 | ||
aca9012a SC |
9035 | /* Allocate ioaccel2 mode command blocks and block fetch table */ |
9036 | ||
9037 | h->ioaccel_maxsg = | |
9038 | readl(&(h->cfgtable->io_accel_max_embedded_sg_count)); | |
9039 | if (h->ioaccel_maxsg > IOACCEL2_MAXSGENTRIES) | |
9040 | h->ioaccel_maxsg = IOACCEL2_MAXSGENTRIES; | |
9041 | ||
aca9012a SC |
9042 | BUILD_BUG_ON(sizeof(struct io_accel2_cmd) % |
9043 | IOACCEL2_COMMANDLIST_ALIGNMENT); | |
9044 | h->ioaccel2_cmd_pool = | |
9045 | pci_alloc_consistent(h->pdev, | |
9046 | h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool), | |
9047 | &(h->ioaccel2_cmd_pool_dhandle)); | |
9048 | ||
9049 | h->ioaccel2_blockFetchTable = | |
9050 | kmalloc(((h->ioaccel_maxsg + 1) * | |
9051 | sizeof(u32)), GFP_KERNEL); | |
9052 | ||
9053 | if ((h->ioaccel2_cmd_pool == NULL) || | |
d9a729f3 WS |
9054 | (h->ioaccel2_blockFetchTable == NULL)) { |
9055 | rc = -ENOMEM; | |
9056 | goto clean_up; | |
9057 | } | |
9058 | ||
9059 | rc = hpsa_allocate_ioaccel2_sg_chain_blocks(h); | |
9060 | if (rc) | |
aca9012a SC |
9061 | goto clean_up; |
9062 | ||
9063 | memset(h->ioaccel2_cmd_pool, 0, | |
9064 | h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool)); | |
9065 | return 0; | |
9066 | ||
9067 | clean_up: | |
1fb7c98a | 9068 | hpsa_free_ioaccel2_cmd_and_bft(h); |
d9a729f3 | 9069 | return rc; |
aca9012a SC |
9070 | } |
9071 | ||
105a3dbc RE |
9072 | /* Free items allocated by hpsa_put_ctlr_into_performant_mode */ |
9073 | static void hpsa_free_performant_mode(struct ctlr_info *h) | |
9074 | { | |
9075 | kfree(h->blockFetchTable); | |
9076 | h->blockFetchTable = NULL; | |
9077 | hpsa_free_reply_queues(h); | |
9078 | hpsa_free_ioaccel1_cmd_and_bft(h); | |
9079 | hpsa_free_ioaccel2_cmd_and_bft(h); | |
9080 | } | |
9081 | ||
9082 | /* return -ENODEV on error, 0 on success (or no action) | |
9083 | * allocates numerous items that must be freed later | |
9084 | */ | |
9085 | static int hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h) | |
6c311b57 SC |
9086 | { |
9087 | u32 trans_support; | |
e1f7de0c MG |
9088 | unsigned long transMethod = CFGTBL_Trans_Performant | |
9089 | CFGTBL_Trans_use_short_tags; | |
105a3dbc | 9090 | int i, rc; |
6c311b57 | 9091 | |
02ec19c8 | 9092 | if (hpsa_simple_mode) |
105a3dbc | 9093 | return 0; |
02ec19c8 | 9094 | |
67c99a72 | 9095 | trans_support = readl(&(h->cfgtable->TransportSupport)); |
9096 | if (!(trans_support & PERFORMANT_MODE)) | |
105a3dbc | 9097 | return 0; |
67c99a72 | 9098 | |
e1f7de0c MG |
9099 | /* Check for I/O accelerator mode support */ |
9100 | if (trans_support & CFGTBL_Trans_io_accel1) { | |
9101 | transMethod |= CFGTBL_Trans_io_accel1 | | |
9102 | CFGTBL_Trans_enable_directed_msix; | |
105a3dbc RE |
9103 | rc = hpsa_alloc_ioaccel1_cmd_and_bft(h); |
9104 | if (rc) | |
9105 | return rc; | |
9106 | } else if (trans_support & CFGTBL_Trans_io_accel2) { | |
9107 | transMethod |= CFGTBL_Trans_io_accel2 | | |
aca9012a | 9108 | CFGTBL_Trans_enable_directed_msix; |
105a3dbc RE |
9109 | rc = hpsa_alloc_ioaccel2_cmd_and_bft(h); |
9110 | if (rc) | |
9111 | return rc; | |
e1f7de0c MG |
9112 | } |
9113 | ||
bc2bb154 | 9114 | h->nreply_queues = h->msix_vectors > 0 ? h->msix_vectors : 1; |
cba3d38b | 9115 | hpsa_get_max_perf_mode_cmds(h); |
6c311b57 | 9116 | /* Performant mode ring buffer and supporting data structures */ |
072b0518 | 9117 | h->reply_queue_size = h->max_commands * sizeof(u64); |
6c311b57 | 9118 | |
254f796b | 9119 | for (i = 0; i < h->nreply_queues; i++) { |
072b0518 SC |
9120 | h->reply_queue[i].head = pci_alloc_consistent(h->pdev, |
9121 | h->reply_queue_size, | |
9122 | &(h->reply_queue[i].busaddr)); | |
105a3dbc RE |
9123 | if (!h->reply_queue[i].head) { |
9124 | rc = -ENOMEM; | |
9125 | goto clean1; /* rq, ioaccel */ | |
9126 | } | |
254f796b MG |
9127 | h->reply_queue[i].size = h->max_commands; |
9128 | h->reply_queue[i].wraparound = 1; /* spec: init to 1 */ | |
9129 | h->reply_queue[i].current_entry = 0; | |
9130 | } | |
9131 | ||
6c311b57 | 9132 | /* Need a block fetch table for performant mode */ |
d66ae08b | 9133 | h->blockFetchTable = kmalloc(((SG_ENTRIES_IN_CMD + 1) * |
6c311b57 | 9134 | sizeof(u32)), GFP_KERNEL); |
105a3dbc RE |
9135 | if (!h->blockFetchTable) { |
9136 | rc = -ENOMEM; | |
9137 | goto clean1; /* rq, ioaccel */ | |
9138 | } | |
6c311b57 | 9139 | |
105a3dbc RE |
9140 | rc = hpsa_enter_performant_mode(h, trans_support); |
9141 | if (rc) | |
9142 | goto clean2; /* bft, rq, ioaccel */ | |
9143 | return 0; | |
303932fd | 9144 | |
105a3dbc | 9145 | clean2: /* bft, rq, ioaccel */ |
303932fd | 9146 | kfree(h->blockFetchTable); |
105a3dbc RE |
9147 | h->blockFetchTable = NULL; |
9148 | clean1: /* rq, ioaccel */ | |
9149 | hpsa_free_reply_queues(h); | |
9150 | hpsa_free_ioaccel1_cmd_and_bft(h); | |
9151 | hpsa_free_ioaccel2_cmd_and_bft(h); | |
9152 | return rc; | |
303932fd DB |
9153 | } |
9154 | ||
23100dd9 | 9155 | static int is_accelerated_cmd(struct CommandList *c) |
76438d08 | 9156 | { |
23100dd9 SC |
9157 | return c->cmd_type == CMD_IOACCEL1 || c->cmd_type == CMD_IOACCEL2; |
9158 | } | |
9159 | ||
9160 | static void hpsa_drain_accel_commands(struct ctlr_info *h) | |
9161 | { | |
9162 | struct CommandList *c = NULL; | |
f2405db8 | 9163 | int i, accel_cmds_out; |
281a7fd0 | 9164 | int refcount; |
76438d08 | 9165 | |
f2405db8 | 9166 | do { /* wait for all outstanding ioaccel commands to drain out */ |
23100dd9 | 9167 | accel_cmds_out = 0; |
f2405db8 | 9168 | for (i = 0; i < h->nr_cmds; i++) { |
f2405db8 | 9169 | c = h->cmd_pool + i; |
281a7fd0 WS |
9170 | refcount = atomic_inc_return(&c->refcount); |
9171 | if (refcount > 1) /* Command is allocated */ | |
9172 | accel_cmds_out += is_accelerated_cmd(c); | |
9173 | cmd_free(h, c); | |
f2405db8 | 9174 | } |
23100dd9 | 9175 | if (accel_cmds_out <= 0) |
281a7fd0 | 9176 | break; |
76438d08 SC |
9177 | msleep(100); |
9178 | } while (1); | |
9179 | } | |
9180 | ||
d04e62b9 KB |
9181 | static struct hpsa_sas_phy *hpsa_alloc_sas_phy( |
9182 | struct hpsa_sas_port *hpsa_sas_port) | |
9183 | { | |
9184 | struct hpsa_sas_phy *hpsa_sas_phy; | |
9185 | struct sas_phy *phy; | |
9186 | ||
9187 | hpsa_sas_phy = kzalloc(sizeof(*hpsa_sas_phy), GFP_KERNEL); | |
9188 | if (!hpsa_sas_phy) | |
9189 | return NULL; | |
9190 | ||
9191 | phy = sas_phy_alloc(hpsa_sas_port->parent_node->parent_dev, | |
9192 | hpsa_sas_port->next_phy_index); | |
9193 | if (!phy) { | |
9194 | kfree(hpsa_sas_phy); | |
9195 | return NULL; | |
9196 | } | |
9197 | ||
9198 | hpsa_sas_port->next_phy_index++; | |
9199 | hpsa_sas_phy->phy = phy; | |
9200 | hpsa_sas_phy->parent_port = hpsa_sas_port; | |
9201 | ||
9202 | return hpsa_sas_phy; | |
9203 | } | |
9204 | ||
9205 | static void hpsa_free_sas_phy(struct hpsa_sas_phy *hpsa_sas_phy) | |
9206 | { | |
9207 | struct sas_phy *phy = hpsa_sas_phy->phy; | |
9208 | ||
9209 | sas_port_delete_phy(hpsa_sas_phy->parent_port->port, phy); | |
9210 | sas_phy_free(phy); | |
9211 | if (hpsa_sas_phy->added_to_port) | |
9212 | list_del(&hpsa_sas_phy->phy_list_entry); | |
9213 | kfree(hpsa_sas_phy); | |
9214 | } | |
9215 | ||
9216 | static int hpsa_sas_port_add_phy(struct hpsa_sas_phy *hpsa_sas_phy) | |
9217 | { | |
9218 | int rc; | |
9219 | struct hpsa_sas_port *hpsa_sas_port; | |
9220 | struct sas_phy *phy; | |
9221 | struct sas_identify *identify; | |
9222 | ||
9223 | hpsa_sas_port = hpsa_sas_phy->parent_port; | |
9224 | phy = hpsa_sas_phy->phy; | |
9225 | ||
9226 | identify = &phy->identify; | |
9227 | memset(identify, 0, sizeof(*identify)); | |
9228 | identify->sas_address = hpsa_sas_port->sas_address; | |
9229 | identify->device_type = SAS_END_DEVICE; | |
9230 | identify->initiator_port_protocols = SAS_PROTOCOL_STP; | |
9231 | identify->target_port_protocols = SAS_PROTOCOL_STP; | |
9232 | phy->minimum_linkrate_hw = SAS_LINK_RATE_UNKNOWN; | |
9233 | phy->maximum_linkrate_hw = SAS_LINK_RATE_UNKNOWN; | |
9234 | phy->minimum_linkrate = SAS_LINK_RATE_UNKNOWN; | |
9235 | phy->maximum_linkrate = SAS_LINK_RATE_UNKNOWN; | |
9236 | phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN; | |
9237 | ||
9238 | rc = sas_phy_add(hpsa_sas_phy->phy); | |
9239 | if (rc) | |
9240 | return rc; | |
9241 | ||
9242 | sas_port_add_phy(hpsa_sas_port->port, hpsa_sas_phy->phy); | |
9243 | list_add_tail(&hpsa_sas_phy->phy_list_entry, | |
9244 | &hpsa_sas_port->phy_list_head); | |
9245 | hpsa_sas_phy->added_to_port = true; | |
9246 | ||
9247 | return 0; | |
9248 | } | |
9249 | ||
9250 | static int | |
9251 | hpsa_sas_port_add_rphy(struct hpsa_sas_port *hpsa_sas_port, | |
9252 | struct sas_rphy *rphy) | |
9253 | { | |
9254 | struct sas_identify *identify; | |
9255 | ||
9256 | identify = &rphy->identify; | |
9257 | identify->sas_address = hpsa_sas_port->sas_address; | |
9258 | identify->initiator_port_protocols = SAS_PROTOCOL_STP; | |
9259 | identify->target_port_protocols = SAS_PROTOCOL_STP; | |
9260 | ||
9261 | return sas_rphy_add(rphy); | |
9262 | } | |
9263 | ||
9264 | static struct hpsa_sas_port | |
9265 | *hpsa_alloc_sas_port(struct hpsa_sas_node *hpsa_sas_node, | |
9266 | u64 sas_address) | |
9267 | { | |
9268 | int rc; | |
9269 | struct hpsa_sas_port *hpsa_sas_port; | |
9270 | struct sas_port *port; | |
9271 | ||
9272 | hpsa_sas_port = kzalloc(sizeof(*hpsa_sas_port), GFP_KERNEL); | |
9273 | if (!hpsa_sas_port) | |
9274 | return NULL; | |
9275 | ||
9276 | INIT_LIST_HEAD(&hpsa_sas_port->phy_list_head); | |
9277 | hpsa_sas_port->parent_node = hpsa_sas_node; | |
9278 | ||
9279 | port = sas_port_alloc_num(hpsa_sas_node->parent_dev); | |
9280 | if (!port) | |
9281 | goto free_hpsa_port; | |
9282 | ||
9283 | rc = sas_port_add(port); | |
9284 | if (rc) | |
9285 | goto free_sas_port; | |
9286 | ||
9287 | hpsa_sas_port->port = port; | |
9288 | hpsa_sas_port->sas_address = sas_address; | |
9289 | list_add_tail(&hpsa_sas_port->port_list_entry, | |
9290 | &hpsa_sas_node->port_list_head); | |
9291 | ||
9292 | return hpsa_sas_port; | |
9293 | ||
9294 | free_sas_port: | |
9295 | sas_port_free(port); | |
9296 | free_hpsa_port: | |
9297 | kfree(hpsa_sas_port); | |
9298 | ||
9299 | return NULL; | |
9300 | } | |
9301 | ||
9302 | static void hpsa_free_sas_port(struct hpsa_sas_port *hpsa_sas_port) | |
9303 | { | |
9304 | struct hpsa_sas_phy *hpsa_sas_phy; | |
9305 | struct hpsa_sas_phy *next; | |
9306 | ||
9307 | list_for_each_entry_safe(hpsa_sas_phy, next, | |
9308 | &hpsa_sas_port->phy_list_head, phy_list_entry) | |
9309 | hpsa_free_sas_phy(hpsa_sas_phy); | |
9310 | ||
9311 | sas_port_delete(hpsa_sas_port->port); | |
9312 | list_del(&hpsa_sas_port->port_list_entry); | |
9313 | kfree(hpsa_sas_port); | |
9314 | } | |
9315 | ||
9316 | static struct hpsa_sas_node *hpsa_alloc_sas_node(struct device *parent_dev) | |
9317 | { | |
9318 | struct hpsa_sas_node *hpsa_sas_node; | |
9319 | ||
9320 | hpsa_sas_node = kzalloc(sizeof(*hpsa_sas_node), GFP_KERNEL); | |
9321 | if (hpsa_sas_node) { | |
9322 | hpsa_sas_node->parent_dev = parent_dev; | |
9323 | INIT_LIST_HEAD(&hpsa_sas_node->port_list_head); | |
9324 | } | |
9325 | ||
9326 | return hpsa_sas_node; | |
9327 | } | |
9328 | ||
9329 | static void hpsa_free_sas_node(struct hpsa_sas_node *hpsa_sas_node) | |
9330 | { | |
9331 | struct hpsa_sas_port *hpsa_sas_port; | |
9332 | struct hpsa_sas_port *next; | |
9333 | ||
9334 | if (!hpsa_sas_node) | |
9335 | return; | |
9336 | ||
9337 | list_for_each_entry_safe(hpsa_sas_port, next, | |
9338 | &hpsa_sas_node->port_list_head, port_list_entry) | |
9339 | hpsa_free_sas_port(hpsa_sas_port); | |
9340 | ||
9341 | kfree(hpsa_sas_node); | |
9342 | } | |
9343 | ||
9344 | static struct hpsa_scsi_dev_t | |
9345 | *hpsa_find_device_by_sas_rphy(struct ctlr_info *h, | |
9346 | struct sas_rphy *rphy) | |
9347 | { | |
9348 | int i; | |
9349 | struct hpsa_scsi_dev_t *device; | |
9350 | ||
9351 | for (i = 0; i < h->ndevices; i++) { | |
9352 | device = h->dev[i]; | |
9353 | if (!device->sas_port) | |
9354 | continue; | |
9355 | if (device->sas_port->rphy == rphy) | |
9356 | return device; | |
9357 | } | |
9358 | ||
9359 | return NULL; | |
9360 | } | |
9361 | ||
9362 | static int hpsa_add_sas_host(struct ctlr_info *h) | |
9363 | { | |
9364 | int rc; | |
9365 | struct device *parent_dev; | |
9366 | struct hpsa_sas_node *hpsa_sas_node; | |
9367 | struct hpsa_sas_port *hpsa_sas_port; | |
9368 | struct hpsa_sas_phy *hpsa_sas_phy; | |
9369 | ||
9370 | parent_dev = &h->scsi_host->shost_gendev; | |
9371 | ||
9372 | hpsa_sas_node = hpsa_alloc_sas_node(parent_dev); | |
9373 | if (!hpsa_sas_node) | |
9374 | return -ENOMEM; | |
9375 | ||
9376 | hpsa_sas_port = hpsa_alloc_sas_port(hpsa_sas_node, h->sas_address); | |
9377 | if (!hpsa_sas_port) { | |
9378 | rc = -ENODEV; | |
9379 | goto free_sas_node; | |
9380 | } | |
9381 | ||
9382 | hpsa_sas_phy = hpsa_alloc_sas_phy(hpsa_sas_port); | |
9383 | if (!hpsa_sas_phy) { | |
9384 | rc = -ENODEV; | |
9385 | goto free_sas_port; | |
9386 | } | |
9387 | ||
9388 | rc = hpsa_sas_port_add_phy(hpsa_sas_phy); | |
9389 | if (rc) | |
9390 | goto free_sas_phy; | |
9391 | ||
9392 | h->sas_host = hpsa_sas_node; | |
9393 | ||
9394 | return 0; | |
9395 | ||
9396 | free_sas_phy: | |
9397 | hpsa_free_sas_phy(hpsa_sas_phy); | |
9398 | free_sas_port: | |
9399 | hpsa_free_sas_port(hpsa_sas_port); | |
9400 | free_sas_node: | |
9401 | hpsa_free_sas_node(hpsa_sas_node); | |
9402 | ||
9403 | return rc; | |
9404 | } | |
9405 | ||
9406 | static void hpsa_delete_sas_host(struct ctlr_info *h) | |
9407 | { | |
9408 | hpsa_free_sas_node(h->sas_host); | |
9409 | } | |
9410 | ||
9411 | static int hpsa_add_sas_device(struct hpsa_sas_node *hpsa_sas_node, | |
9412 | struct hpsa_scsi_dev_t *device) | |
9413 | { | |
9414 | int rc; | |
9415 | struct hpsa_sas_port *hpsa_sas_port; | |
9416 | struct sas_rphy *rphy; | |
9417 | ||
9418 | hpsa_sas_port = hpsa_alloc_sas_port(hpsa_sas_node, device->sas_address); | |
9419 | if (!hpsa_sas_port) | |
9420 | return -ENOMEM; | |
9421 | ||
9422 | rphy = sas_end_device_alloc(hpsa_sas_port->port); | |
9423 | if (!rphy) { | |
9424 | rc = -ENODEV; | |
9425 | goto free_sas_port; | |
9426 | } | |
9427 | ||
9428 | hpsa_sas_port->rphy = rphy; | |
9429 | device->sas_port = hpsa_sas_port; | |
9430 | ||
9431 | rc = hpsa_sas_port_add_rphy(hpsa_sas_port, rphy); | |
9432 | if (rc) | |
9433 | goto free_sas_port; | |
9434 | ||
9435 | return 0; | |
9436 | ||
9437 | free_sas_port: | |
9438 | hpsa_free_sas_port(hpsa_sas_port); | |
9439 | device->sas_port = NULL; | |
9440 | ||
9441 | return rc; | |
9442 | } | |
9443 | ||
9444 | static void hpsa_remove_sas_device(struct hpsa_scsi_dev_t *device) | |
9445 | { | |
9446 | if (device->sas_port) { | |
9447 | hpsa_free_sas_port(device->sas_port); | |
9448 | device->sas_port = NULL; | |
9449 | } | |
9450 | } | |
9451 | ||
9452 | static int | |
9453 | hpsa_sas_get_linkerrors(struct sas_phy *phy) | |
9454 | { | |
9455 | return 0; | |
9456 | } | |
9457 | ||
9458 | static int | |
9459 | hpsa_sas_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier) | |
9460 | { | |
aa105695 | 9461 | *identifier = 0; |
d04e62b9 KB |
9462 | return 0; |
9463 | } | |
9464 | ||
9465 | static int | |
9466 | hpsa_sas_get_bay_identifier(struct sas_rphy *rphy) | |
9467 | { | |
9468 | return -ENXIO; | |
9469 | } | |
9470 | ||
9471 | static int | |
9472 | hpsa_sas_phy_reset(struct sas_phy *phy, int hard_reset) | |
9473 | { | |
9474 | return 0; | |
9475 | } | |
9476 | ||
9477 | static int | |
9478 | hpsa_sas_phy_enable(struct sas_phy *phy, int enable) | |
9479 | { | |
9480 | return 0; | |
9481 | } | |
9482 | ||
9483 | static int | |
9484 | hpsa_sas_phy_setup(struct sas_phy *phy) | |
9485 | { | |
9486 | return 0; | |
9487 | } | |
9488 | ||
9489 | static void | |
9490 | hpsa_sas_phy_release(struct sas_phy *phy) | |
9491 | { | |
9492 | } | |
9493 | ||
9494 | static int | |
9495 | hpsa_sas_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates) | |
9496 | { | |
9497 | return -EINVAL; | |
9498 | } | |
9499 | ||
d04e62b9 KB |
9500 | static struct sas_function_template hpsa_sas_transport_functions = { |
9501 | .get_linkerrors = hpsa_sas_get_linkerrors, | |
9502 | .get_enclosure_identifier = hpsa_sas_get_enclosure_identifier, | |
9503 | .get_bay_identifier = hpsa_sas_get_bay_identifier, | |
9504 | .phy_reset = hpsa_sas_phy_reset, | |
9505 | .phy_enable = hpsa_sas_phy_enable, | |
9506 | .phy_setup = hpsa_sas_phy_setup, | |
9507 | .phy_release = hpsa_sas_phy_release, | |
9508 | .set_phy_speed = hpsa_sas_phy_speed, | |
d04e62b9 KB |
9509 | }; |
9510 | ||
edd16368 SC |
9511 | /* |
9512 | * This is it. Register the PCI driver information for the cards we control | |
9513 | * the OS will call our registered routines when it finds one of our cards. | |
9514 | */ | |
9515 | static int __init hpsa_init(void) | |
9516 | { | |
d04e62b9 KB |
9517 | int rc; |
9518 | ||
9519 | hpsa_sas_transport_template = | |
9520 | sas_attach_transport(&hpsa_sas_transport_functions); | |
9521 | if (!hpsa_sas_transport_template) | |
9522 | return -ENODEV; | |
9523 | ||
9524 | rc = pci_register_driver(&hpsa_pci_driver); | |
9525 | ||
9526 | if (rc) | |
9527 | sas_release_transport(hpsa_sas_transport_template); | |
9528 | ||
9529 | return rc; | |
edd16368 SC |
9530 | } |
9531 | ||
9532 | static void __exit hpsa_cleanup(void) | |
9533 | { | |
9534 | pci_unregister_driver(&hpsa_pci_driver); | |
d04e62b9 | 9535 | sas_release_transport(hpsa_sas_transport_template); |
edd16368 SC |
9536 | } |
9537 | ||
e1f7de0c MG |
9538 | static void __attribute__((unused)) verify_offsets(void) |
9539 | { | |
dd0e19f3 ST |
9540 | #define VERIFY_OFFSET(member, offset) \ |
9541 | BUILD_BUG_ON(offsetof(struct raid_map_data, member) != offset) | |
9542 | ||
9543 | VERIFY_OFFSET(structure_size, 0); | |
9544 | VERIFY_OFFSET(volume_blk_size, 4); | |
9545 | VERIFY_OFFSET(volume_blk_cnt, 8); | |
9546 | VERIFY_OFFSET(phys_blk_shift, 16); | |
9547 | VERIFY_OFFSET(parity_rotation_shift, 17); | |
9548 | VERIFY_OFFSET(strip_size, 18); | |
9549 | VERIFY_OFFSET(disk_starting_blk, 20); | |
9550 | VERIFY_OFFSET(disk_blk_cnt, 28); | |
9551 | VERIFY_OFFSET(data_disks_per_row, 36); | |
9552 | VERIFY_OFFSET(metadata_disks_per_row, 38); | |
9553 | VERIFY_OFFSET(row_cnt, 40); | |
9554 | VERIFY_OFFSET(layout_map_count, 42); | |
9555 | VERIFY_OFFSET(flags, 44); | |
9556 | VERIFY_OFFSET(dekindex, 46); | |
9557 | /* VERIFY_OFFSET(reserved, 48 */ | |
9558 | VERIFY_OFFSET(data, 64); | |
9559 | ||
9560 | #undef VERIFY_OFFSET | |
9561 | ||
b66cc250 MM |
9562 | #define VERIFY_OFFSET(member, offset) \ |
9563 | BUILD_BUG_ON(offsetof(struct io_accel2_cmd, member) != offset) | |
9564 | ||
9565 | VERIFY_OFFSET(IU_type, 0); | |
9566 | VERIFY_OFFSET(direction, 1); | |
9567 | VERIFY_OFFSET(reply_queue, 2); | |
9568 | /* VERIFY_OFFSET(reserved1, 3); */ | |
9569 | VERIFY_OFFSET(scsi_nexus, 4); | |
9570 | VERIFY_OFFSET(Tag, 8); | |
9571 | VERIFY_OFFSET(cdb, 16); | |
9572 | VERIFY_OFFSET(cciss_lun, 32); | |
9573 | VERIFY_OFFSET(data_len, 40); | |
9574 | VERIFY_OFFSET(cmd_priority_task_attr, 44); | |
9575 | VERIFY_OFFSET(sg_count, 45); | |
9576 | /* VERIFY_OFFSET(reserved3 */ | |
9577 | VERIFY_OFFSET(err_ptr, 48); | |
9578 | VERIFY_OFFSET(err_len, 56); | |
9579 | /* VERIFY_OFFSET(reserved4 */ | |
9580 | VERIFY_OFFSET(sg, 64); | |
9581 | ||
9582 | #undef VERIFY_OFFSET | |
9583 | ||
e1f7de0c MG |
9584 | #define VERIFY_OFFSET(member, offset) \ |
9585 | BUILD_BUG_ON(offsetof(struct io_accel1_cmd, member) != offset) | |
9586 | ||
9587 | VERIFY_OFFSET(dev_handle, 0x00); | |
9588 | VERIFY_OFFSET(reserved1, 0x02); | |
9589 | VERIFY_OFFSET(function, 0x03); | |
9590 | VERIFY_OFFSET(reserved2, 0x04); | |
9591 | VERIFY_OFFSET(err_info, 0x0C); | |
9592 | VERIFY_OFFSET(reserved3, 0x10); | |
9593 | VERIFY_OFFSET(err_info_len, 0x12); | |
9594 | VERIFY_OFFSET(reserved4, 0x13); | |
9595 | VERIFY_OFFSET(sgl_offset, 0x14); | |
9596 | VERIFY_OFFSET(reserved5, 0x15); | |
9597 | VERIFY_OFFSET(transfer_len, 0x1C); | |
9598 | VERIFY_OFFSET(reserved6, 0x20); | |
9599 | VERIFY_OFFSET(io_flags, 0x24); | |
9600 | VERIFY_OFFSET(reserved7, 0x26); | |
9601 | VERIFY_OFFSET(LUN, 0x34); | |
9602 | VERIFY_OFFSET(control, 0x3C); | |
9603 | VERIFY_OFFSET(CDB, 0x40); | |
9604 | VERIFY_OFFSET(reserved8, 0x50); | |
9605 | VERIFY_OFFSET(host_context_flags, 0x60); | |
9606 | VERIFY_OFFSET(timeout_sec, 0x62); | |
9607 | VERIFY_OFFSET(ReplyQueue, 0x64); | |
9608 | VERIFY_OFFSET(reserved9, 0x65); | |
50a0decf | 9609 | VERIFY_OFFSET(tag, 0x68); |
e1f7de0c MG |
9610 | VERIFY_OFFSET(host_addr, 0x70); |
9611 | VERIFY_OFFSET(CISS_LUN, 0x78); | |
9612 | VERIFY_OFFSET(SG, 0x78 + 8); | |
9613 | #undef VERIFY_OFFSET | |
9614 | } | |
9615 | ||
edd16368 SC |
9616 | module_init(hpsa_init); |
9617 | module_exit(hpsa_cleanup); |