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edd16368 SC |
1 | /* |
2 | * Disk Array driver for HP Smart Array SAS controllers | |
1358f6dc DB |
3 | * Copyright 2014-2015 PMC-Sierra, Inc. |
4 | * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P. | |
edd16368 SC |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; version 2 of the License. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
13 | * NON INFRINGEMENT. See the GNU General Public License for more details. | |
14 | * | |
1358f6dc | 15 | * Questions/Comments/Bugfixes to storagedev@pmcs.com |
edd16368 SC |
16 | * |
17 | */ | |
18 | ||
19 | #include <linux/module.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/types.h> | |
22 | #include <linux/pci.h> | |
e5a44df8 | 23 | #include <linux/pci-aspm.h> |
edd16368 SC |
24 | #include <linux/kernel.h> |
25 | #include <linux/slab.h> | |
26 | #include <linux/delay.h> | |
27 | #include <linux/fs.h> | |
28 | #include <linux/timer.h> | |
edd16368 SC |
29 | #include <linux/init.h> |
30 | #include <linux/spinlock.h> | |
edd16368 SC |
31 | #include <linux/compat.h> |
32 | #include <linux/blktrace_api.h> | |
33 | #include <linux/uaccess.h> | |
34 | #include <linux/io.h> | |
35 | #include <linux/dma-mapping.h> | |
36 | #include <linux/completion.h> | |
37 | #include <linux/moduleparam.h> | |
38 | #include <scsi/scsi.h> | |
39 | #include <scsi/scsi_cmnd.h> | |
40 | #include <scsi/scsi_device.h> | |
41 | #include <scsi/scsi_host.h> | |
667e23d4 | 42 | #include <scsi/scsi_tcq.h> |
9437ac43 | 43 | #include <scsi/scsi_eh.h> |
73153fe5 | 44 | #include <scsi/scsi_dbg.h> |
edd16368 SC |
45 | #include <linux/cciss_ioctl.h> |
46 | #include <linux/string.h> | |
47 | #include <linux/bitmap.h> | |
60063497 | 48 | #include <linux/atomic.h> |
a0c12413 | 49 | #include <linux/jiffies.h> |
42a91641 | 50 | #include <linux/percpu-defs.h> |
094963da | 51 | #include <linux/percpu.h> |
2b08b3e9 | 52 | #include <asm/unaligned.h> |
283b4a9b | 53 | #include <asm/div64.h> |
edd16368 SC |
54 | #include "hpsa_cmd.h" |
55 | #include "hpsa.h" | |
56 | ||
57 | /* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */ | |
f532a3f9 | 58 | #define HPSA_DRIVER_VERSION "3.4.10-0" |
edd16368 | 59 | #define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")" |
f79cfec6 | 60 | #define HPSA "hpsa" |
edd16368 | 61 | |
007e7aa9 RE |
62 | /* How long to wait for CISS doorbell communication */ |
63 | #define CLEAR_EVENT_WAIT_INTERVAL 20 /* ms for each msleep() call */ | |
64 | #define MODE_CHANGE_WAIT_INTERVAL 10 /* ms for each msleep() call */ | |
65 | #define MAX_CLEAR_EVENT_WAIT 30000 /* times 20 ms = 600 s */ | |
66 | #define MAX_MODE_CHANGE_WAIT 2000 /* times 10 ms = 20 s */ | |
edd16368 SC |
67 | #define MAX_IOCTL_CONFIG_WAIT 1000 |
68 | ||
69 | /*define how many times we will try a command because of bus resets */ | |
70 | #define MAX_CMD_RETRIES 3 | |
71 | ||
72 | /* Embedded module documentation macros - see modules.h */ | |
73 | MODULE_AUTHOR("Hewlett-Packard Company"); | |
74 | MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \ | |
75 | HPSA_DRIVER_VERSION); | |
76 | MODULE_SUPPORTED_DEVICE("HP Smart Array Controllers"); | |
77 | MODULE_VERSION(HPSA_DRIVER_VERSION); | |
78 | MODULE_LICENSE("GPL"); | |
79 | ||
80 | static int hpsa_allow_any; | |
81 | module_param(hpsa_allow_any, int, S_IRUGO|S_IWUSR); | |
82 | MODULE_PARM_DESC(hpsa_allow_any, | |
83 | "Allow hpsa driver to access unknown HP Smart Array hardware"); | |
02ec19c8 SC |
84 | static int hpsa_simple_mode; |
85 | module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR); | |
86 | MODULE_PARM_DESC(hpsa_simple_mode, | |
87 | "Use 'simple mode' rather than 'performant mode'"); | |
edd16368 SC |
88 | |
89 | /* define the PCI info for the cards we can control */ | |
90 | static const struct pci_device_id hpsa_pci_device_id[] = { | |
edd16368 SC |
91 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3241}, |
92 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3243}, | |
93 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3245}, | |
94 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3247}, | |
95 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3249}, | |
163dbcd8 MM |
96 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324A}, |
97 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324B}, | |
f8b01eb9 | 98 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3233}, |
9143a961 | 99 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3350}, |
100 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3351}, | |
101 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3352}, | |
102 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3353}, | |
103 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3354}, | |
104 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3355}, | |
105 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3356}, | |
fe0c9610 MM |
106 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1921}, |
107 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1922}, | |
108 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1923}, | |
109 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1924}, | |
fe0c9610 MM |
110 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1926}, |
111 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1928}, | |
97b9f53d MM |
112 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1929}, |
113 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BD}, | |
114 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BE}, | |
115 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BF}, | |
116 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C0}, | |
117 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C1}, | |
118 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C2}, | |
119 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C3}, | |
120 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C4}, | |
121 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C5}, | |
3b7a45e5 | 122 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C6}, |
97b9f53d MM |
123 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C7}, |
124 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C8}, | |
125 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C9}, | |
3b7a45e5 JH |
126 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CA}, |
127 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CB}, | |
128 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CC}, | |
129 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CD}, | |
130 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CE}, | |
fdfa4b6d | 131 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0580}, |
cbb47dcb DB |
132 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0581}, |
133 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0582}, | |
134 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0583}, | |
135 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0584}, | |
136 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0585}, | |
8e616a5e SC |
137 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0076}, |
138 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0087}, | |
139 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D}, | |
140 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0088}, | |
141 | {PCI_VENDOR_ID_HP, 0x333f, 0x103c, 0x333f}, | |
7c03b870 | 142 | {PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, |
6798cc0a | 143 | PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, |
edd16368 SC |
144 | {0,} |
145 | }; | |
146 | ||
147 | MODULE_DEVICE_TABLE(pci, hpsa_pci_device_id); | |
148 | ||
149 | /* board_id = Subsystem Device ID & Vendor ID | |
150 | * product = Marketing Name for the board | |
151 | * access = Address of the struct of function pointers | |
152 | */ | |
153 | static struct board_type products[] = { | |
edd16368 SC |
154 | {0x3241103C, "Smart Array P212", &SA5_access}, |
155 | {0x3243103C, "Smart Array P410", &SA5_access}, | |
156 | {0x3245103C, "Smart Array P410i", &SA5_access}, | |
157 | {0x3247103C, "Smart Array P411", &SA5_access}, | |
158 | {0x3249103C, "Smart Array P812", &SA5_access}, | |
163dbcd8 MM |
159 | {0x324A103C, "Smart Array P712m", &SA5_access}, |
160 | {0x324B103C, "Smart Array P711m", &SA5_access}, | |
7d2cce58 | 161 | {0x3233103C, "HP StorageWorks 1210m", &SA5_access}, /* alias of 333f */ |
fe0c9610 MM |
162 | {0x3350103C, "Smart Array P222", &SA5_access}, |
163 | {0x3351103C, "Smart Array P420", &SA5_access}, | |
164 | {0x3352103C, "Smart Array P421", &SA5_access}, | |
165 | {0x3353103C, "Smart Array P822", &SA5_access}, | |
166 | {0x3354103C, "Smart Array P420i", &SA5_access}, | |
167 | {0x3355103C, "Smart Array P220i", &SA5_access}, | |
168 | {0x3356103C, "Smart Array P721m", &SA5_access}, | |
1fd6c8e3 MM |
169 | {0x1921103C, "Smart Array P830i", &SA5_access}, |
170 | {0x1922103C, "Smart Array P430", &SA5_access}, | |
171 | {0x1923103C, "Smart Array P431", &SA5_access}, | |
172 | {0x1924103C, "Smart Array P830", &SA5_access}, | |
173 | {0x1926103C, "Smart Array P731m", &SA5_access}, | |
174 | {0x1928103C, "Smart Array P230i", &SA5_access}, | |
175 | {0x1929103C, "Smart Array P530", &SA5_access}, | |
27fb8137 DB |
176 | {0x21BD103C, "Smart Array P244br", &SA5_access}, |
177 | {0x21BE103C, "Smart Array P741m", &SA5_access}, | |
178 | {0x21BF103C, "Smart HBA H240ar", &SA5_access}, | |
179 | {0x21C0103C, "Smart Array P440ar", &SA5_access}, | |
c8ae0ab1 | 180 | {0x21C1103C, "Smart Array P840ar", &SA5_access}, |
27fb8137 DB |
181 | {0x21C2103C, "Smart Array P440", &SA5_access}, |
182 | {0x21C3103C, "Smart Array P441", &SA5_access}, | |
97b9f53d | 183 | {0x21C4103C, "Smart Array", &SA5_access}, |
27fb8137 DB |
184 | {0x21C5103C, "Smart Array P841", &SA5_access}, |
185 | {0x21C6103C, "Smart HBA H244br", &SA5_access}, | |
186 | {0x21C7103C, "Smart HBA H240", &SA5_access}, | |
187 | {0x21C8103C, "Smart HBA H241", &SA5_access}, | |
97b9f53d | 188 | {0x21C9103C, "Smart Array", &SA5_access}, |
27fb8137 DB |
189 | {0x21CA103C, "Smart Array P246br", &SA5_access}, |
190 | {0x21CB103C, "Smart Array P840", &SA5_access}, | |
3b7a45e5 JH |
191 | {0x21CC103C, "Smart Array", &SA5_access}, |
192 | {0x21CD103C, "Smart Array", &SA5_access}, | |
27fb8137 | 193 | {0x21CE103C, "Smart HBA", &SA5_access}, |
fdfa4b6d | 194 | {0x05809005, "SmartHBA-SA", &SA5_access}, |
cbb47dcb DB |
195 | {0x05819005, "SmartHBA-SA 8i", &SA5_access}, |
196 | {0x05829005, "SmartHBA-SA 8i8e", &SA5_access}, | |
197 | {0x05839005, "SmartHBA-SA 8e", &SA5_access}, | |
198 | {0x05849005, "SmartHBA-SA 16i", &SA5_access}, | |
199 | {0x05859005, "SmartHBA-SA 4i4e", &SA5_access}, | |
8e616a5e SC |
200 | {0x00761590, "HP Storage P1224 Array Controller", &SA5_access}, |
201 | {0x00871590, "HP Storage P1224e Array Controller", &SA5_access}, | |
202 | {0x007D1590, "HP Storage P1228 Array Controller", &SA5_access}, | |
203 | {0x00881590, "HP Storage P1228e Array Controller", &SA5_access}, | |
204 | {0x333f103c, "HP StorageWorks 1210m Array Controller", &SA5_access}, | |
edd16368 SC |
205 | {0xFFFF103C, "Unknown Smart Array", &SA5_access}, |
206 | }; | |
207 | ||
a58e7e53 WS |
208 | #define SCSI_CMD_BUSY ((struct scsi_cmnd *)&hpsa_cmd_busy) |
209 | static const struct scsi_cmnd hpsa_cmd_busy; | |
210 | #define SCSI_CMD_IDLE ((struct scsi_cmnd *)&hpsa_cmd_idle) | |
211 | static const struct scsi_cmnd hpsa_cmd_idle; | |
edd16368 SC |
212 | static int number_of_controllers; |
213 | ||
10f66018 SC |
214 | static irqreturn_t do_hpsa_intr_intx(int irq, void *dev_id); |
215 | static irqreturn_t do_hpsa_intr_msi(int irq, void *dev_id); | |
42a91641 | 216 | static int hpsa_ioctl(struct scsi_device *dev, int cmd, void __user *arg); |
edd16368 SC |
217 | |
218 | #ifdef CONFIG_COMPAT | |
42a91641 DB |
219 | static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, |
220 | void __user *arg); | |
edd16368 SC |
221 | #endif |
222 | ||
223 | static void cmd_free(struct ctlr_info *h, struct CommandList *c); | |
edd16368 | 224 | static struct CommandList *cmd_alloc(struct ctlr_info *h); |
73153fe5 WS |
225 | static void cmd_tagged_free(struct ctlr_info *h, struct CommandList *c); |
226 | static struct CommandList *cmd_tagged_alloc(struct ctlr_info *h, | |
227 | struct scsi_cmnd *scmd); | |
a2dac136 | 228 | static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h, |
b7bb24eb | 229 | void *buff, size_t size, u16 page_code, unsigned char *scsi3addr, |
edd16368 | 230 | int cmd_type); |
2c143342 | 231 | static void hpsa_free_cmd_pool(struct ctlr_info *h); |
b7bb24eb | 232 | #define VPD_PAGE (1 << 8) |
edd16368 | 233 | |
f281233d | 234 | static int hpsa_scsi_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd); |
a08a8471 SC |
235 | static void hpsa_scan_start(struct Scsi_Host *); |
236 | static int hpsa_scan_finished(struct Scsi_Host *sh, | |
237 | unsigned long elapsed_time); | |
7c0a0229 | 238 | static int hpsa_change_queue_depth(struct scsi_device *sdev, int qdepth); |
edd16368 SC |
239 | |
240 | static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd); | |
75167d2c | 241 | static int hpsa_eh_abort_handler(struct scsi_cmnd *scsicmd); |
edd16368 | 242 | static int hpsa_slave_alloc(struct scsi_device *sdev); |
41ce4c35 | 243 | static int hpsa_slave_configure(struct scsi_device *sdev); |
edd16368 SC |
244 | static void hpsa_slave_destroy(struct scsi_device *sdev); |
245 | ||
edd16368 | 246 | static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno); |
edd16368 SC |
247 | static int check_for_unit_attention(struct ctlr_info *h, |
248 | struct CommandList *c); | |
249 | static void check_ioctl_unit_attention(struct ctlr_info *h, | |
250 | struct CommandList *c); | |
303932fd DB |
251 | /* performant mode helper functions */ |
252 | static void calc_bucket_map(int *bucket, int num_buckets, | |
2b08b3e9 | 253 | int nsgs, int min_blocks, u32 *bucket_map); |
105a3dbc RE |
254 | static void hpsa_free_performant_mode(struct ctlr_info *h); |
255 | static int hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h); | |
254f796b | 256 | static inline u32 next_command(struct ctlr_info *h, u8 q); |
6f039790 GKH |
257 | static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr, |
258 | u32 *cfg_base_addr, u64 *cfg_base_addr_index, | |
259 | u64 *cfg_offset); | |
260 | static int hpsa_pci_find_memory_BAR(struct pci_dev *pdev, | |
261 | unsigned long *memory_bar); | |
262 | static int hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id); | |
263 | static int hpsa_wait_for_board_state(struct pci_dev *pdev, void __iomem *vaddr, | |
264 | int wait_for_ready); | |
75167d2c | 265 | static inline void finish_cmd(struct CommandList *c); |
c706a795 | 266 | static int hpsa_wait_for_mode_change_ack(struct ctlr_info *h); |
fe5389c8 SC |
267 | #define BOARD_NOT_READY 0 |
268 | #define BOARD_READY 1 | |
23100dd9 | 269 | static void hpsa_drain_accel_commands(struct ctlr_info *h); |
76438d08 | 270 | static void hpsa_flush_cache(struct ctlr_info *h); |
c349775e ST |
271 | static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h, |
272 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, | |
03383736 | 273 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk); |
080ef1cc | 274 | static void hpsa_command_resubmit_worker(struct work_struct *work); |
25163bd5 WS |
275 | static u32 lockup_detected(struct ctlr_info *h); |
276 | static int detect_controller_lockup(struct ctlr_info *h); | |
8270b862 | 277 | static int is_ext_target(struct ctlr_info *h, struct hpsa_scsi_dev_t *device); |
edd16368 | 278 | |
edd16368 SC |
279 | static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev) |
280 | { | |
281 | unsigned long *priv = shost_priv(sdev->host); | |
282 | return (struct ctlr_info *) *priv; | |
283 | } | |
284 | ||
a23513e8 SC |
285 | static inline struct ctlr_info *shost_to_hba(struct Scsi_Host *sh) |
286 | { | |
287 | unsigned long *priv = shost_priv(sh); | |
288 | return (struct ctlr_info *) *priv; | |
289 | } | |
290 | ||
a58e7e53 WS |
291 | static inline bool hpsa_is_cmd_idle(struct CommandList *c) |
292 | { | |
293 | return c->scsi_cmd == SCSI_CMD_IDLE; | |
294 | } | |
295 | ||
d604f533 WS |
296 | static inline bool hpsa_is_pending_event(struct CommandList *c) |
297 | { | |
298 | return c->abort_pending || c->reset_pending; | |
299 | } | |
300 | ||
9437ac43 SC |
301 | /* extract sense key, asc, and ascq from sense data. -1 means invalid. */ |
302 | static void decode_sense_data(const u8 *sense_data, int sense_data_len, | |
303 | u8 *sense_key, u8 *asc, u8 *ascq) | |
304 | { | |
305 | struct scsi_sense_hdr sshdr; | |
306 | bool rc; | |
307 | ||
308 | *sense_key = -1; | |
309 | *asc = -1; | |
310 | *ascq = -1; | |
311 | ||
312 | if (sense_data_len < 1) | |
313 | return; | |
314 | ||
315 | rc = scsi_normalize_sense(sense_data, sense_data_len, &sshdr); | |
316 | if (rc) { | |
317 | *sense_key = sshdr.sense_key; | |
318 | *asc = sshdr.asc; | |
319 | *ascq = sshdr.ascq; | |
320 | } | |
321 | } | |
322 | ||
edd16368 SC |
323 | static int check_for_unit_attention(struct ctlr_info *h, |
324 | struct CommandList *c) | |
325 | { | |
9437ac43 SC |
326 | u8 sense_key, asc, ascq; |
327 | int sense_len; | |
328 | ||
329 | if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo)) | |
330 | sense_len = sizeof(c->err_info->SenseInfo); | |
331 | else | |
332 | sense_len = c->err_info->SenseLen; | |
333 | ||
334 | decode_sense_data(c->err_info->SenseInfo, sense_len, | |
335 | &sense_key, &asc, &ascq); | |
81c27557 | 336 | if (sense_key != UNIT_ATTENTION || asc == 0xff) |
edd16368 SC |
337 | return 0; |
338 | ||
9437ac43 | 339 | switch (asc) { |
edd16368 | 340 | case STATE_CHANGED: |
9437ac43 | 341 | dev_warn(&h->pdev->dev, |
2946e82b RE |
342 | "%s: a state change detected, command retried\n", |
343 | h->devname); | |
edd16368 SC |
344 | break; |
345 | case LUN_FAILED: | |
7f73695a | 346 | dev_warn(&h->pdev->dev, |
2946e82b | 347 | "%s: LUN failure detected\n", h->devname); |
edd16368 SC |
348 | break; |
349 | case REPORT_LUNS_CHANGED: | |
7f73695a | 350 | dev_warn(&h->pdev->dev, |
2946e82b | 351 | "%s: report LUN data changed\n", h->devname); |
edd16368 | 352 | /* |
4f4eb9f1 ST |
353 | * Note: this REPORT_LUNS_CHANGED condition only occurs on the external |
354 | * target (array) devices. | |
edd16368 SC |
355 | */ |
356 | break; | |
357 | case POWER_OR_RESET: | |
2946e82b RE |
358 | dev_warn(&h->pdev->dev, |
359 | "%s: a power on or device reset detected\n", | |
360 | h->devname); | |
edd16368 SC |
361 | break; |
362 | case UNIT_ATTENTION_CLEARED: | |
2946e82b RE |
363 | dev_warn(&h->pdev->dev, |
364 | "%s: unit attention cleared by another initiator\n", | |
365 | h->devname); | |
edd16368 SC |
366 | break; |
367 | default: | |
2946e82b RE |
368 | dev_warn(&h->pdev->dev, |
369 | "%s: unknown unit attention detected\n", | |
370 | h->devname); | |
edd16368 SC |
371 | break; |
372 | } | |
373 | return 1; | |
374 | } | |
375 | ||
852af20a MB |
376 | static int check_for_busy(struct ctlr_info *h, struct CommandList *c) |
377 | { | |
378 | if (c->err_info->CommandStatus != CMD_TARGET_STATUS || | |
379 | (c->err_info->ScsiStatus != SAM_STAT_BUSY && | |
380 | c->err_info->ScsiStatus != SAM_STAT_TASK_SET_FULL)) | |
381 | return 0; | |
382 | dev_warn(&h->pdev->dev, HPSA "device busy"); | |
383 | return 1; | |
384 | } | |
385 | ||
e985c58f SC |
386 | static u32 lockup_detected(struct ctlr_info *h); |
387 | static ssize_t host_show_lockup_detected(struct device *dev, | |
388 | struct device_attribute *attr, char *buf) | |
389 | { | |
390 | int ld; | |
391 | struct ctlr_info *h; | |
392 | struct Scsi_Host *shost = class_to_shost(dev); | |
393 | ||
394 | h = shost_to_hba(shost); | |
395 | ld = lockup_detected(h); | |
396 | ||
397 | return sprintf(buf, "ld=%d\n", ld); | |
398 | } | |
399 | ||
da0697bd ST |
400 | static ssize_t host_store_hp_ssd_smart_path_status(struct device *dev, |
401 | struct device_attribute *attr, | |
402 | const char *buf, size_t count) | |
403 | { | |
404 | int status, len; | |
405 | struct ctlr_info *h; | |
406 | struct Scsi_Host *shost = class_to_shost(dev); | |
407 | char tmpbuf[10]; | |
408 | ||
409 | if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) | |
410 | return -EACCES; | |
411 | len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count; | |
412 | strncpy(tmpbuf, buf, len); | |
413 | tmpbuf[len] = '\0'; | |
414 | if (sscanf(tmpbuf, "%d", &status) != 1) | |
415 | return -EINVAL; | |
416 | h = shost_to_hba(shost); | |
417 | h->acciopath_status = !!status; | |
418 | dev_warn(&h->pdev->dev, | |
419 | "hpsa: HP SSD Smart Path %s via sysfs update.\n", | |
420 | h->acciopath_status ? "enabled" : "disabled"); | |
421 | return count; | |
422 | } | |
423 | ||
2ba8bfc8 SC |
424 | static ssize_t host_store_raid_offload_debug(struct device *dev, |
425 | struct device_attribute *attr, | |
426 | const char *buf, size_t count) | |
427 | { | |
428 | int debug_level, len; | |
429 | struct ctlr_info *h; | |
430 | struct Scsi_Host *shost = class_to_shost(dev); | |
431 | char tmpbuf[10]; | |
432 | ||
433 | if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) | |
434 | return -EACCES; | |
435 | len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count; | |
436 | strncpy(tmpbuf, buf, len); | |
437 | tmpbuf[len] = '\0'; | |
438 | if (sscanf(tmpbuf, "%d", &debug_level) != 1) | |
439 | return -EINVAL; | |
440 | if (debug_level < 0) | |
441 | debug_level = 0; | |
442 | h = shost_to_hba(shost); | |
443 | h->raid_offload_debug = debug_level; | |
444 | dev_warn(&h->pdev->dev, "hpsa: Set raid_offload_debug level = %d\n", | |
445 | h->raid_offload_debug); | |
446 | return count; | |
447 | } | |
448 | ||
edd16368 SC |
449 | static ssize_t host_store_rescan(struct device *dev, |
450 | struct device_attribute *attr, | |
451 | const char *buf, size_t count) | |
452 | { | |
453 | struct ctlr_info *h; | |
454 | struct Scsi_Host *shost = class_to_shost(dev); | |
a23513e8 | 455 | h = shost_to_hba(shost); |
31468401 | 456 | hpsa_scan_start(h->scsi_host); |
edd16368 SC |
457 | return count; |
458 | } | |
459 | ||
d28ce020 SC |
460 | static ssize_t host_show_firmware_revision(struct device *dev, |
461 | struct device_attribute *attr, char *buf) | |
462 | { | |
463 | struct ctlr_info *h; | |
464 | struct Scsi_Host *shost = class_to_shost(dev); | |
465 | unsigned char *fwrev; | |
466 | ||
467 | h = shost_to_hba(shost); | |
468 | if (!h->hba_inquiry_data) | |
469 | return 0; | |
470 | fwrev = &h->hba_inquiry_data[32]; | |
471 | return snprintf(buf, 20, "%c%c%c%c\n", | |
472 | fwrev[0], fwrev[1], fwrev[2], fwrev[3]); | |
473 | } | |
474 | ||
94a13649 SC |
475 | static ssize_t host_show_commands_outstanding(struct device *dev, |
476 | struct device_attribute *attr, char *buf) | |
477 | { | |
478 | struct Scsi_Host *shost = class_to_shost(dev); | |
479 | struct ctlr_info *h = shost_to_hba(shost); | |
480 | ||
0cbf768e SC |
481 | return snprintf(buf, 20, "%d\n", |
482 | atomic_read(&h->commands_outstanding)); | |
94a13649 SC |
483 | } |
484 | ||
745a7a25 SC |
485 | static ssize_t host_show_transport_mode(struct device *dev, |
486 | struct device_attribute *attr, char *buf) | |
487 | { | |
488 | struct ctlr_info *h; | |
489 | struct Scsi_Host *shost = class_to_shost(dev); | |
490 | ||
491 | h = shost_to_hba(shost); | |
492 | return snprintf(buf, 20, "%s\n", | |
960a30e7 | 493 | h->transMethod & CFGTBL_Trans_Performant ? |
745a7a25 SC |
494 | "performant" : "simple"); |
495 | } | |
496 | ||
da0697bd ST |
497 | static ssize_t host_show_hp_ssd_smart_path_status(struct device *dev, |
498 | struct device_attribute *attr, char *buf) | |
499 | { | |
500 | struct ctlr_info *h; | |
501 | struct Scsi_Host *shost = class_to_shost(dev); | |
502 | ||
503 | h = shost_to_hba(shost); | |
504 | return snprintf(buf, 30, "HP SSD Smart Path %s\n", | |
505 | (h->acciopath_status == 1) ? "enabled" : "disabled"); | |
506 | } | |
507 | ||
46380786 | 508 | /* List of controllers which cannot be hard reset on kexec with reset_devices */ |
941b1cda SC |
509 | static u32 unresettable_controller[] = { |
510 | 0x324a103C, /* Smart Array P712m */ | |
9b5c48c2 | 511 | 0x324b103C, /* Smart Array P711m */ |
941b1cda SC |
512 | 0x3223103C, /* Smart Array P800 */ |
513 | 0x3234103C, /* Smart Array P400 */ | |
514 | 0x3235103C, /* Smart Array P400i */ | |
515 | 0x3211103C, /* Smart Array E200i */ | |
516 | 0x3212103C, /* Smart Array E200 */ | |
517 | 0x3213103C, /* Smart Array E200i */ | |
518 | 0x3214103C, /* Smart Array E200i */ | |
519 | 0x3215103C, /* Smart Array E200i */ | |
520 | 0x3237103C, /* Smart Array E500 */ | |
521 | 0x323D103C, /* Smart Array P700m */ | |
7af0abbc | 522 | 0x40800E11, /* Smart Array 5i */ |
941b1cda SC |
523 | 0x409C0E11, /* Smart Array 6400 */ |
524 | 0x409D0E11, /* Smart Array 6400 EM */ | |
5a4f934e TH |
525 | 0x40700E11, /* Smart Array 5300 */ |
526 | 0x40820E11, /* Smart Array 532 */ | |
527 | 0x40830E11, /* Smart Array 5312 */ | |
528 | 0x409A0E11, /* Smart Array 641 */ | |
529 | 0x409B0E11, /* Smart Array 642 */ | |
530 | 0x40910E11, /* Smart Array 6i */ | |
941b1cda SC |
531 | }; |
532 | ||
46380786 SC |
533 | /* List of controllers which cannot even be soft reset */ |
534 | static u32 soft_unresettable_controller[] = { | |
7af0abbc | 535 | 0x40800E11, /* Smart Array 5i */ |
5a4f934e TH |
536 | 0x40700E11, /* Smart Array 5300 */ |
537 | 0x40820E11, /* Smart Array 532 */ | |
538 | 0x40830E11, /* Smart Array 5312 */ | |
539 | 0x409A0E11, /* Smart Array 641 */ | |
540 | 0x409B0E11, /* Smart Array 642 */ | |
541 | 0x40910E11, /* Smart Array 6i */ | |
46380786 SC |
542 | /* Exclude 640x boards. These are two pci devices in one slot |
543 | * which share a battery backed cache module. One controls the | |
544 | * cache, the other accesses the cache through the one that controls | |
545 | * it. If we reset the one controlling the cache, the other will | |
546 | * likely not be happy. Just forbid resetting this conjoined mess. | |
547 | * The 640x isn't really supported by hpsa anyway. | |
548 | */ | |
549 | 0x409C0E11, /* Smart Array 6400 */ | |
550 | 0x409D0E11, /* Smart Array 6400 EM */ | |
551 | }; | |
552 | ||
9b5c48c2 SC |
553 | static u32 needs_abort_tags_swizzled[] = { |
554 | 0x323D103C, /* Smart Array P700m */ | |
555 | 0x324a103C, /* Smart Array P712m */ | |
556 | 0x324b103C, /* SmartArray P711m */ | |
557 | }; | |
558 | ||
559 | static int board_id_in_array(u32 a[], int nelems, u32 board_id) | |
941b1cda SC |
560 | { |
561 | int i; | |
562 | ||
9b5c48c2 SC |
563 | for (i = 0; i < nelems; i++) |
564 | if (a[i] == board_id) | |
565 | return 1; | |
566 | return 0; | |
46380786 SC |
567 | } |
568 | ||
9b5c48c2 | 569 | static int ctlr_is_hard_resettable(u32 board_id) |
46380786 | 570 | { |
9b5c48c2 SC |
571 | return !board_id_in_array(unresettable_controller, |
572 | ARRAY_SIZE(unresettable_controller), board_id); | |
573 | } | |
46380786 | 574 | |
9b5c48c2 SC |
575 | static int ctlr_is_soft_resettable(u32 board_id) |
576 | { | |
577 | return !board_id_in_array(soft_unresettable_controller, | |
578 | ARRAY_SIZE(soft_unresettable_controller), board_id); | |
941b1cda SC |
579 | } |
580 | ||
46380786 SC |
581 | static int ctlr_is_resettable(u32 board_id) |
582 | { | |
583 | return ctlr_is_hard_resettable(board_id) || | |
584 | ctlr_is_soft_resettable(board_id); | |
585 | } | |
586 | ||
9b5c48c2 SC |
587 | static int ctlr_needs_abort_tags_swizzled(u32 board_id) |
588 | { | |
589 | return board_id_in_array(needs_abort_tags_swizzled, | |
590 | ARRAY_SIZE(needs_abort_tags_swizzled), board_id); | |
591 | } | |
592 | ||
941b1cda SC |
593 | static ssize_t host_show_resettable(struct device *dev, |
594 | struct device_attribute *attr, char *buf) | |
595 | { | |
596 | struct ctlr_info *h; | |
597 | struct Scsi_Host *shost = class_to_shost(dev); | |
598 | ||
599 | h = shost_to_hba(shost); | |
46380786 | 600 | return snprintf(buf, 20, "%d\n", ctlr_is_resettable(h->board_id)); |
941b1cda SC |
601 | } |
602 | ||
edd16368 SC |
603 | static inline int is_logical_dev_addr_mode(unsigned char scsi3addr[]) |
604 | { | |
605 | return (scsi3addr[3] & 0xC0) == 0x40; | |
606 | } | |
607 | ||
f2ef0ce7 RE |
608 | static const char * const raid_label[] = { "0", "4", "1(+0)", "5", "5+1", "6", |
609 | "1(+0)ADM", "UNKNOWN" | |
edd16368 | 610 | }; |
6b80b18f ST |
611 | #define HPSA_RAID_0 0 |
612 | #define HPSA_RAID_4 1 | |
613 | #define HPSA_RAID_1 2 /* also used for RAID 10 */ | |
614 | #define HPSA_RAID_5 3 /* also used for RAID 50 */ | |
615 | #define HPSA_RAID_51 4 | |
616 | #define HPSA_RAID_6 5 /* also used for RAID 60 */ | |
617 | #define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */ | |
edd16368 SC |
618 | #define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 1) |
619 | ||
620 | static ssize_t raid_level_show(struct device *dev, | |
621 | struct device_attribute *attr, char *buf) | |
622 | { | |
623 | ssize_t l = 0; | |
82a72c0a | 624 | unsigned char rlevel; |
edd16368 SC |
625 | struct ctlr_info *h; |
626 | struct scsi_device *sdev; | |
627 | struct hpsa_scsi_dev_t *hdev; | |
628 | unsigned long flags; | |
629 | ||
630 | sdev = to_scsi_device(dev); | |
631 | h = sdev_to_hba(sdev); | |
632 | spin_lock_irqsave(&h->lock, flags); | |
633 | hdev = sdev->hostdata; | |
634 | if (!hdev) { | |
635 | spin_unlock_irqrestore(&h->lock, flags); | |
636 | return -ENODEV; | |
637 | } | |
638 | ||
639 | /* Is this even a logical drive? */ | |
640 | if (!is_logical_dev_addr_mode(hdev->scsi3addr)) { | |
641 | spin_unlock_irqrestore(&h->lock, flags); | |
642 | l = snprintf(buf, PAGE_SIZE, "N/A\n"); | |
643 | return l; | |
644 | } | |
645 | ||
646 | rlevel = hdev->raid_level; | |
647 | spin_unlock_irqrestore(&h->lock, flags); | |
82a72c0a | 648 | if (rlevel > RAID_UNKNOWN) |
edd16368 SC |
649 | rlevel = RAID_UNKNOWN; |
650 | l = snprintf(buf, PAGE_SIZE, "RAID %s\n", raid_label[rlevel]); | |
651 | return l; | |
652 | } | |
653 | ||
654 | static ssize_t lunid_show(struct device *dev, | |
655 | struct device_attribute *attr, char *buf) | |
656 | { | |
657 | struct ctlr_info *h; | |
658 | struct scsi_device *sdev; | |
659 | struct hpsa_scsi_dev_t *hdev; | |
660 | unsigned long flags; | |
661 | unsigned char lunid[8]; | |
662 | ||
663 | sdev = to_scsi_device(dev); | |
664 | h = sdev_to_hba(sdev); | |
665 | spin_lock_irqsave(&h->lock, flags); | |
666 | hdev = sdev->hostdata; | |
667 | if (!hdev) { | |
668 | spin_unlock_irqrestore(&h->lock, flags); | |
669 | return -ENODEV; | |
670 | } | |
671 | memcpy(lunid, hdev->scsi3addr, sizeof(lunid)); | |
672 | spin_unlock_irqrestore(&h->lock, flags); | |
673 | return snprintf(buf, 20, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
674 | lunid[0], lunid[1], lunid[2], lunid[3], | |
675 | lunid[4], lunid[5], lunid[6], lunid[7]); | |
676 | } | |
677 | ||
678 | static ssize_t unique_id_show(struct device *dev, | |
679 | struct device_attribute *attr, char *buf) | |
680 | { | |
681 | struct ctlr_info *h; | |
682 | struct scsi_device *sdev; | |
683 | struct hpsa_scsi_dev_t *hdev; | |
684 | unsigned long flags; | |
685 | unsigned char sn[16]; | |
686 | ||
687 | sdev = to_scsi_device(dev); | |
688 | h = sdev_to_hba(sdev); | |
689 | spin_lock_irqsave(&h->lock, flags); | |
690 | hdev = sdev->hostdata; | |
691 | if (!hdev) { | |
692 | spin_unlock_irqrestore(&h->lock, flags); | |
693 | return -ENODEV; | |
694 | } | |
695 | memcpy(sn, hdev->device_id, sizeof(sn)); | |
696 | spin_unlock_irqrestore(&h->lock, flags); | |
697 | return snprintf(buf, 16 * 2 + 2, | |
698 | "%02X%02X%02X%02X%02X%02X%02X%02X" | |
699 | "%02X%02X%02X%02X%02X%02X%02X%02X\n", | |
700 | sn[0], sn[1], sn[2], sn[3], | |
701 | sn[4], sn[5], sn[6], sn[7], | |
702 | sn[8], sn[9], sn[10], sn[11], | |
703 | sn[12], sn[13], sn[14], sn[15]); | |
704 | } | |
705 | ||
c1988684 ST |
706 | static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev, |
707 | struct device_attribute *attr, char *buf) | |
708 | { | |
709 | struct ctlr_info *h; | |
710 | struct scsi_device *sdev; | |
711 | struct hpsa_scsi_dev_t *hdev; | |
712 | unsigned long flags; | |
713 | int offload_enabled; | |
714 | ||
715 | sdev = to_scsi_device(dev); | |
716 | h = sdev_to_hba(sdev); | |
717 | spin_lock_irqsave(&h->lock, flags); | |
718 | hdev = sdev->hostdata; | |
719 | if (!hdev) { | |
720 | spin_unlock_irqrestore(&h->lock, flags); | |
721 | return -ENODEV; | |
722 | } | |
723 | offload_enabled = hdev->offload_enabled; | |
724 | spin_unlock_irqrestore(&h->lock, flags); | |
725 | return snprintf(buf, 20, "%d\n", offload_enabled); | |
726 | } | |
727 | ||
8270b862 JH |
728 | #define MAX_PATHS 8 |
729 | #define PATH_STRING_LEN 50 | |
730 | ||
731 | static ssize_t path_info_show(struct device *dev, | |
732 | struct device_attribute *attr, char *buf) | |
733 | { | |
734 | struct ctlr_info *h; | |
735 | struct scsi_device *sdev; | |
736 | struct hpsa_scsi_dev_t *hdev; | |
737 | unsigned long flags; | |
738 | int i; | |
739 | int output_len = 0; | |
740 | u8 box; | |
741 | u8 bay; | |
742 | u8 path_map_index = 0; | |
743 | char *active; | |
744 | unsigned char phys_connector[2]; | |
745 | unsigned char path[MAX_PATHS][PATH_STRING_LEN]; | |
746 | ||
747 | memset(path, 0, MAX_PATHS * PATH_STRING_LEN); | |
748 | sdev = to_scsi_device(dev); | |
749 | h = sdev_to_hba(sdev); | |
750 | spin_lock_irqsave(&h->devlock, flags); | |
751 | hdev = sdev->hostdata; | |
752 | if (!hdev) { | |
753 | spin_unlock_irqrestore(&h->devlock, flags); | |
754 | return -ENODEV; | |
755 | } | |
756 | ||
757 | bay = hdev->bay; | |
758 | for (i = 0; i < MAX_PATHS; i++) { | |
759 | path_map_index = 1<<i; | |
760 | if (i == hdev->active_path_index) | |
761 | active = "Active"; | |
762 | else if (hdev->path_map & path_map_index) | |
763 | active = "Inactive"; | |
764 | else | |
765 | continue; | |
766 | ||
767 | output_len = snprintf(path[i], | |
768 | PATH_STRING_LEN, "[%d:%d:%d:%d] %20.20s ", | |
769 | h->scsi_host->host_no, | |
770 | hdev->bus, hdev->target, hdev->lun, | |
771 | scsi_device_type(hdev->devtype)); | |
772 | ||
773 | if (is_ext_target(h, hdev) || | |
774 | (hdev->devtype == TYPE_RAID) || | |
775 | is_logical_dev_addr_mode(hdev->scsi3addr)) { | |
776 | output_len += snprintf(path[i] + output_len, | |
777 | PATH_STRING_LEN, "%s\n", | |
778 | active); | |
779 | continue; | |
780 | } | |
781 | ||
782 | box = hdev->box[i]; | |
783 | memcpy(&phys_connector, &hdev->phys_connector[i], | |
784 | sizeof(phys_connector)); | |
785 | if (phys_connector[0] < '0') | |
786 | phys_connector[0] = '0'; | |
787 | if (phys_connector[1] < '0') | |
788 | phys_connector[1] = '0'; | |
789 | if (hdev->phys_connector[i] > 0) | |
790 | output_len += snprintf(path[i] + output_len, | |
791 | PATH_STRING_LEN, | |
792 | "PORT: %.2s ", | |
793 | phys_connector); | |
b9092b79 KB |
794 | if (hdev->devtype == TYPE_DISK && |
795 | hdev->expose_state != HPSA_DO_NOT_EXPOSE) { | |
8270b862 JH |
796 | if (box == 0 || box == 0xFF) { |
797 | output_len += snprintf(path[i] + output_len, | |
798 | PATH_STRING_LEN, | |
799 | "BAY: %hhu %s\n", | |
800 | bay, active); | |
801 | } else { | |
802 | output_len += snprintf(path[i] + output_len, | |
803 | PATH_STRING_LEN, | |
804 | "BOX: %hhu BAY: %hhu %s\n", | |
805 | box, bay, active); | |
806 | } | |
807 | } else if (box != 0 && box != 0xFF) { | |
808 | output_len += snprintf(path[i] + output_len, | |
809 | PATH_STRING_LEN, "BOX: %hhu %s\n", | |
810 | box, active); | |
811 | } else | |
812 | output_len += snprintf(path[i] + output_len, | |
813 | PATH_STRING_LEN, "%s\n", active); | |
814 | } | |
815 | ||
816 | spin_unlock_irqrestore(&h->devlock, flags); | |
817 | return snprintf(buf, output_len+1, "%s%s%s%s%s%s%s%s", | |
818 | path[0], path[1], path[2], path[3], | |
819 | path[4], path[5], path[6], path[7]); | |
820 | } | |
821 | ||
3f5eac3a SC |
822 | static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL); |
823 | static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL); | |
824 | static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL); | |
825 | static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan); | |
c1988684 ST |
826 | static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO, |
827 | host_show_hp_ssd_smart_path_enabled, NULL); | |
8270b862 | 828 | static DEVICE_ATTR(path_info, S_IRUGO, path_info_show, NULL); |
da0697bd ST |
829 | static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR|S_IRUGO|S_IROTH, |
830 | host_show_hp_ssd_smart_path_status, | |
831 | host_store_hp_ssd_smart_path_status); | |
2ba8bfc8 SC |
832 | static DEVICE_ATTR(raid_offload_debug, S_IWUSR, NULL, |
833 | host_store_raid_offload_debug); | |
3f5eac3a SC |
834 | static DEVICE_ATTR(firmware_revision, S_IRUGO, |
835 | host_show_firmware_revision, NULL); | |
836 | static DEVICE_ATTR(commands_outstanding, S_IRUGO, | |
837 | host_show_commands_outstanding, NULL); | |
838 | static DEVICE_ATTR(transport_mode, S_IRUGO, | |
839 | host_show_transport_mode, NULL); | |
941b1cda SC |
840 | static DEVICE_ATTR(resettable, S_IRUGO, |
841 | host_show_resettable, NULL); | |
e985c58f SC |
842 | static DEVICE_ATTR(lockup_detected, S_IRUGO, |
843 | host_show_lockup_detected, NULL); | |
3f5eac3a SC |
844 | |
845 | static struct device_attribute *hpsa_sdev_attrs[] = { | |
846 | &dev_attr_raid_level, | |
847 | &dev_attr_lunid, | |
848 | &dev_attr_unique_id, | |
c1988684 | 849 | &dev_attr_hp_ssd_smart_path_enabled, |
8270b862 | 850 | &dev_attr_path_info, |
e985c58f | 851 | &dev_attr_lockup_detected, |
3f5eac3a SC |
852 | NULL, |
853 | }; | |
854 | ||
855 | static struct device_attribute *hpsa_shost_attrs[] = { | |
856 | &dev_attr_rescan, | |
857 | &dev_attr_firmware_revision, | |
858 | &dev_attr_commands_outstanding, | |
859 | &dev_attr_transport_mode, | |
941b1cda | 860 | &dev_attr_resettable, |
da0697bd | 861 | &dev_attr_hp_ssd_smart_path_status, |
2ba8bfc8 | 862 | &dev_attr_raid_offload_debug, |
3f5eac3a SC |
863 | NULL, |
864 | }; | |
865 | ||
41ce4c35 SC |
866 | #define HPSA_NRESERVED_CMDS (HPSA_CMDS_RESERVED_FOR_ABORTS + \ |
867 | HPSA_CMDS_RESERVED_FOR_DRIVER + HPSA_MAX_CONCURRENT_PASSTHRUS) | |
868 | ||
3f5eac3a SC |
869 | static struct scsi_host_template hpsa_driver_template = { |
870 | .module = THIS_MODULE, | |
f79cfec6 SC |
871 | .name = HPSA, |
872 | .proc_name = HPSA, | |
3f5eac3a SC |
873 | .queuecommand = hpsa_scsi_queue_command, |
874 | .scan_start = hpsa_scan_start, | |
875 | .scan_finished = hpsa_scan_finished, | |
7c0a0229 | 876 | .change_queue_depth = hpsa_change_queue_depth, |
3f5eac3a SC |
877 | .this_id = -1, |
878 | .use_clustering = ENABLE_CLUSTERING, | |
75167d2c | 879 | .eh_abort_handler = hpsa_eh_abort_handler, |
3f5eac3a SC |
880 | .eh_device_reset_handler = hpsa_eh_device_reset_handler, |
881 | .ioctl = hpsa_ioctl, | |
882 | .slave_alloc = hpsa_slave_alloc, | |
41ce4c35 | 883 | .slave_configure = hpsa_slave_configure, |
3f5eac3a SC |
884 | .slave_destroy = hpsa_slave_destroy, |
885 | #ifdef CONFIG_COMPAT | |
886 | .compat_ioctl = hpsa_compat_ioctl, | |
887 | #endif | |
888 | .sdev_attrs = hpsa_sdev_attrs, | |
889 | .shost_attrs = hpsa_shost_attrs, | |
c0d6a4d1 | 890 | .max_sectors = 8192, |
54b2b50c | 891 | .no_write_same = 1, |
3f5eac3a SC |
892 | }; |
893 | ||
254f796b | 894 | static inline u32 next_command(struct ctlr_info *h, u8 q) |
3f5eac3a SC |
895 | { |
896 | u32 a; | |
072b0518 | 897 | struct reply_queue_buffer *rq = &h->reply_queue[q]; |
3f5eac3a | 898 | |
e1f7de0c MG |
899 | if (h->transMethod & CFGTBL_Trans_io_accel1) |
900 | return h->access.command_completed(h, q); | |
901 | ||
3f5eac3a | 902 | if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) |
254f796b | 903 | return h->access.command_completed(h, q); |
3f5eac3a | 904 | |
254f796b MG |
905 | if ((rq->head[rq->current_entry] & 1) == rq->wraparound) { |
906 | a = rq->head[rq->current_entry]; | |
907 | rq->current_entry++; | |
0cbf768e | 908 | atomic_dec(&h->commands_outstanding); |
3f5eac3a SC |
909 | } else { |
910 | a = FIFO_EMPTY; | |
911 | } | |
912 | /* Check for wraparound */ | |
254f796b MG |
913 | if (rq->current_entry == h->max_commands) { |
914 | rq->current_entry = 0; | |
915 | rq->wraparound ^= 1; | |
3f5eac3a SC |
916 | } |
917 | return a; | |
918 | } | |
919 | ||
c349775e ST |
920 | /* |
921 | * There are some special bits in the bus address of the | |
922 | * command that we have to set for the controller to know | |
923 | * how to process the command: | |
924 | * | |
925 | * Normal performant mode: | |
926 | * bit 0: 1 means performant mode, 0 means simple mode. | |
927 | * bits 1-3 = block fetch table entry | |
928 | * bits 4-6 = command type (== 0) | |
929 | * | |
930 | * ioaccel1 mode: | |
931 | * bit 0 = "performant mode" bit. | |
932 | * bits 1-3 = block fetch table entry | |
933 | * bits 4-6 = command type (== 110) | |
934 | * (command type is needed because ioaccel1 mode | |
935 | * commands are submitted through the same register as normal | |
936 | * mode commands, so this is how the controller knows whether | |
937 | * the command is normal mode or ioaccel1 mode.) | |
938 | * | |
939 | * ioaccel2 mode: | |
940 | * bit 0 = "performant mode" bit. | |
941 | * bits 1-4 = block fetch table entry (note extra bit) | |
942 | * bits 4-6 = not needed, because ioaccel2 mode has | |
943 | * a separate special register for submitting commands. | |
944 | */ | |
945 | ||
25163bd5 WS |
946 | /* |
947 | * set_performant_mode: Modify the tag for cciss performant | |
3f5eac3a SC |
948 | * set bit 0 for pull model, bits 3-1 for block fetch |
949 | * register number | |
950 | */ | |
25163bd5 WS |
951 | #define DEFAULT_REPLY_QUEUE (-1) |
952 | static void set_performant_mode(struct ctlr_info *h, struct CommandList *c, | |
953 | int reply_queue) | |
3f5eac3a | 954 | { |
254f796b | 955 | if (likely(h->transMethod & CFGTBL_Trans_Performant)) { |
3f5eac3a | 956 | c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1); |
25163bd5 WS |
957 | if (unlikely(!h->msix_vector)) |
958 | return; | |
959 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) | |
254f796b | 960 | c->Header.ReplyQueue = |
804a5cb5 | 961 | raw_smp_processor_id() % h->nreply_queues; |
25163bd5 WS |
962 | else |
963 | c->Header.ReplyQueue = reply_queue % h->nreply_queues; | |
254f796b | 964 | } |
3f5eac3a SC |
965 | } |
966 | ||
c349775e | 967 | static void set_ioaccel1_performant_mode(struct ctlr_info *h, |
25163bd5 WS |
968 | struct CommandList *c, |
969 | int reply_queue) | |
c349775e ST |
970 | { |
971 | struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex]; | |
972 | ||
25163bd5 WS |
973 | /* |
974 | * Tell the controller to post the reply to the queue for this | |
c349775e ST |
975 | * processor. This seems to give the best I/O throughput. |
976 | */ | |
25163bd5 WS |
977 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) |
978 | cp->ReplyQueue = smp_processor_id() % h->nreply_queues; | |
979 | else | |
980 | cp->ReplyQueue = reply_queue % h->nreply_queues; | |
981 | /* | |
982 | * Set the bits in the address sent down to include: | |
c349775e ST |
983 | * - performant mode bit (bit 0) |
984 | * - pull count (bits 1-3) | |
985 | * - command type (bits 4-6) | |
986 | */ | |
987 | c->busaddr |= 1 | (h->ioaccel1_blockFetchTable[c->Header.SGList] << 1) | | |
988 | IOACCEL1_BUSADDR_CMDTYPE; | |
989 | } | |
990 | ||
8be986cc SC |
991 | static void set_ioaccel2_tmf_performant_mode(struct ctlr_info *h, |
992 | struct CommandList *c, | |
993 | int reply_queue) | |
994 | { | |
995 | struct hpsa_tmf_struct *cp = (struct hpsa_tmf_struct *) | |
996 | &h->ioaccel2_cmd_pool[c->cmdindex]; | |
997 | ||
998 | /* Tell the controller to post the reply to the queue for this | |
999 | * processor. This seems to give the best I/O throughput. | |
1000 | */ | |
1001 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) | |
1002 | cp->reply_queue = smp_processor_id() % h->nreply_queues; | |
1003 | else | |
1004 | cp->reply_queue = reply_queue % h->nreply_queues; | |
1005 | /* Set the bits in the address sent down to include: | |
1006 | * - performant mode bit not used in ioaccel mode 2 | |
1007 | * - pull count (bits 0-3) | |
1008 | * - command type isn't needed for ioaccel2 | |
1009 | */ | |
1010 | c->busaddr |= h->ioaccel2_blockFetchTable[0]; | |
1011 | } | |
1012 | ||
c349775e | 1013 | static void set_ioaccel2_performant_mode(struct ctlr_info *h, |
25163bd5 WS |
1014 | struct CommandList *c, |
1015 | int reply_queue) | |
c349775e ST |
1016 | { |
1017 | struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
1018 | ||
25163bd5 WS |
1019 | /* |
1020 | * Tell the controller to post the reply to the queue for this | |
c349775e ST |
1021 | * processor. This seems to give the best I/O throughput. |
1022 | */ | |
25163bd5 WS |
1023 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) |
1024 | cp->reply_queue = smp_processor_id() % h->nreply_queues; | |
1025 | else | |
1026 | cp->reply_queue = reply_queue % h->nreply_queues; | |
1027 | /* | |
1028 | * Set the bits in the address sent down to include: | |
c349775e ST |
1029 | * - performant mode bit not used in ioaccel mode 2 |
1030 | * - pull count (bits 0-3) | |
1031 | * - command type isn't needed for ioaccel2 | |
1032 | */ | |
1033 | c->busaddr |= (h->ioaccel2_blockFetchTable[cp->sg_count]); | |
1034 | } | |
1035 | ||
e85c5974 SC |
1036 | static int is_firmware_flash_cmd(u8 *cdb) |
1037 | { | |
1038 | return cdb[0] == BMIC_WRITE && cdb[6] == BMIC_FLASH_FIRMWARE; | |
1039 | } | |
1040 | ||
1041 | /* | |
1042 | * During firmware flash, the heartbeat register may not update as frequently | |
1043 | * as it should. So we dial down lockup detection during firmware flash. and | |
1044 | * dial it back up when firmware flash completes. | |
1045 | */ | |
1046 | #define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ) | |
1047 | #define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ) | |
1048 | static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info *h, | |
1049 | struct CommandList *c) | |
1050 | { | |
1051 | if (!is_firmware_flash_cmd(c->Request.CDB)) | |
1052 | return; | |
1053 | atomic_inc(&h->firmware_flash_in_progress); | |
1054 | h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH; | |
1055 | } | |
1056 | ||
1057 | static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info *h, | |
1058 | struct CommandList *c) | |
1059 | { | |
1060 | if (is_firmware_flash_cmd(c->Request.CDB) && | |
1061 | atomic_dec_and_test(&h->firmware_flash_in_progress)) | |
1062 | h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL; | |
1063 | } | |
1064 | ||
25163bd5 WS |
1065 | static void __enqueue_cmd_and_start_io(struct ctlr_info *h, |
1066 | struct CommandList *c, int reply_queue) | |
3f5eac3a | 1067 | { |
c05e8866 SC |
1068 | dial_down_lockup_detection_during_fw_flash(h, c); |
1069 | atomic_inc(&h->commands_outstanding); | |
c349775e ST |
1070 | switch (c->cmd_type) { |
1071 | case CMD_IOACCEL1: | |
25163bd5 | 1072 | set_ioaccel1_performant_mode(h, c, reply_queue); |
c05e8866 | 1073 | writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET); |
c349775e ST |
1074 | break; |
1075 | case CMD_IOACCEL2: | |
25163bd5 | 1076 | set_ioaccel2_performant_mode(h, c, reply_queue); |
c05e8866 | 1077 | writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32); |
c349775e | 1078 | break; |
8be986cc SC |
1079 | case IOACCEL2_TMF: |
1080 | set_ioaccel2_tmf_performant_mode(h, c, reply_queue); | |
1081 | writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32); | |
1082 | break; | |
c349775e | 1083 | default: |
25163bd5 | 1084 | set_performant_mode(h, c, reply_queue); |
c05e8866 | 1085 | h->access.submit_command(h, c); |
c349775e | 1086 | } |
3f5eac3a SC |
1087 | } |
1088 | ||
a58e7e53 | 1089 | static void enqueue_cmd_and_start_io(struct ctlr_info *h, struct CommandList *c) |
25163bd5 | 1090 | { |
d604f533 | 1091 | if (unlikely(hpsa_is_pending_event(c))) |
a58e7e53 WS |
1092 | return finish_cmd(c); |
1093 | ||
25163bd5 WS |
1094 | __enqueue_cmd_and_start_io(h, c, DEFAULT_REPLY_QUEUE); |
1095 | } | |
1096 | ||
3f5eac3a SC |
1097 | static inline int is_hba_lunid(unsigned char scsi3addr[]) |
1098 | { | |
1099 | return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0; | |
1100 | } | |
1101 | ||
1102 | static inline int is_scsi_rev_5(struct ctlr_info *h) | |
1103 | { | |
1104 | if (!h->hba_inquiry_data) | |
1105 | return 0; | |
1106 | if ((h->hba_inquiry_data[2] & 0x07) == 5) | |
1107 | return 1; | |
1108 | return 0; | |
1109 | } | |
1110 | ||
edd16368 SC |
1111 | static int hpsa_find_target_lun(struct ctlr_info *h, |
1112 | unsigned char scsi3addr[], int bus, int *target, int *lun) | |
1113 | { | |
1114 | /* finds an unused bus, target, lun for a new physical device | |
1115 | * assumes h->devlock is held | |
1116 | */ | |
1117 | int i, found = 0; | |
cfe5badc | 1118 | DECLARE_BITMAP(lun_taken, HPSA_MAX_DEVICES); |
edd16368 | 1119 | |
263d9401 | 1120 | bitmap_zero(lun_taken, HPSA_MAX_DEVICES); |
edd16368 SC |
1121 | |
1122 | for (i = 0; i < h->ndevices; i++) { | |
1123 | if (h->dev[i]->bus == bus && h->dev[i]->target != -1) | |
263d9401 | 1124 | __set_bit(h->dev[i]->target, lun_taken); |
edd16368 SC |
1125 | } |
1126 | ||
263d9401 AM |
1127 | i = find_first_zero_bit(lun_taken, HPSA_MAX_DEVICES); |
1128 | if (i < HPSA_MAX_DEVICES) { | |
1129 | /* *bus = 1; */ | |
1130 | *target = i; | |
1131 | *lun = 0; | |
1132 | found = 1; | |
edd16368 SC |
1133 | } |
1134 | return !found; | |
1135 | } | |
1136 | ||
0d96ef5f WS |
1137 | static inline void hpsa_show_dev_msg(const char *level, struct ctlr_info *h, |
1138 | struct hpsa_scsi_dev_t *dev, char *description) | |
1139 | { | |
1140 | dev_printk(level, &h->pdev->dev, | |
1141 | "scsi %d:%d:%d:%d: %s %s %.8s %.16s RAID-%s SSDSmartPathCap%c En%c Exp=%d\n", | |
1142 | h->scsi_host->host_no, dev->bus, dev->target, dev->lun, | |
1143 | description, | |
1144 | scsi_device_type(dev->devtype), | |
1145 | dev->vendor, | |
1146 | dev->model, | |
1147 | dev->raid_level > RAID_UNKNOWN ? | |
1148 | "RAID-?" : raid_label[dev->raid_level], | |
1149 | dev->offload_config ? '+' : '-', | |
1150 | dev->offload_enabled ? '+' : '-', | |
1151 | dev->expose_state); | |
1152 | } | |
1153 | ||
edd16368 SC |
1154 | /* Add an entry into h->dev[] array. */ |
1155 | static int hpsa_scsi_add_entry(struct ctlr_info *h, int hostno, | |
1156 | struct hpsa_scsi_dev_t *device, | |
1157 | struct hpsa_scsi_dev_t *added[], int *nadded) | |
1158 | { | |
1159 | /* assumes h->devlock is held */ | |
1160 | int n = h->ndevices; | |
1161 | int i; | |
1162 | unsigned char addr1[8], addr2[8]; | |
1163 | struct hpsa_scsi_dev_t *sd; | |
1164 | ||
cfe5badc | 1165 | if (n >= HPSA_MAX_DEVICES) { |
edd16368 SC |
1166 | dev_err(&h->pdev->dev, "too many devices, some will be " |
1167 | "inaccessible.\n"); | |
1168 | return -1; | |
1169 | } | |
1170 | ||
1171 | /* physical devices do not have lun or target assigned until now. */ | |
1172 | if (device->lun != -1) | |
1173 | /* Logical device, lun is already assigned. */ | |
1174 | goto lun_assigned; | |
1175 | ||
1176 | /* If this device a non-zero lun of a multi-lun device | |
1177 | * byte 4 of the 8-byte LUN addr will contain the logical | |
2b08b3e9 | 1178 | * unit no, zero otherwise. |
edd16368 SC |
1179 | */ |
1180 | if (device->scsi3addr[4] == 0) { | |
1181 | /* This is not a non-zero lun of a multi-lun device */ | |
1182 | if (hpsa_find_target_lun(h, device->scsi3addr, | |
1183 | device->bus, &device->target, &device->lun) != 0) | |
1184 | return -1; | |
1185 | goto lun_assigned; | |
1186 | } | |
1187 | ||
1188 | /* This is a non-zero lun of a multi-lun device. | |
1189 | * Search through our list and find the device which | |
9a4178b7 | 1190 | * has the same 8 byte LUN address, excepting byte 4 and 5. |
edd16368 SC |
1191 | * Assign the same bus and target for this new LUN. |
1192 | * Use the logical unit number from the firmware. | |
1193 | */ | |
1194 | memcpy(addr1, device->scsi3addr, 8); | |
1195 | addr1[4] = 0; | |
9a4178b7 | 1196 | addr1[5] = 0; |
edd16368 SC |
1197 | for (i = 0; i < n; i++) { |
1198 | sd = h->dev[i]; | |
1199 | memcpy(addr2, sd->scsi3addr, 8); | |
1200 | addr2[4] = 0; | |
9a4178b7 | 1201 | addr2[5] = 0; |
1202 | /* differ only in byte 4 and 5? */ | |
edd16368 SC |
1203 | if (memcmp(addr1, addr2, 8) == 0) { |
1204 | device->bus = sd->bus; | |
1205 | device->target = sd->target; | |
1206 | device->lun = device->scsi3addr[4]; | |
1207 | break; | |
1208 | } | |
1209 | } | |
1210 | if (device->lun == -1) { | |
1211 | dev_warn(&h->pdev->dev, "physical device with no LUN=0," | |
1212 | " suspect firmware bug or unsupported hardware " | |
1213 | "configuration.\n"); | |
1214 | return -1; | |
1215 | } | |
1216 | ||
1217 | lun_assigned: | |
1218 | ||
1219 | h->dev[n] = device; | |
1220 | h->ndevices++; | |
1221 | added[*nadded] = device; | |
1222 | (*nadded)++; | |
0d96ef5f WS |
1223 | hpsa_show_dev_msg(KERN_INFO, h, device, |
1224 | device->expose_state & HPSA_SCSI_ADD ? "added" : "masked"); | |
a473d86c RE |
1225 | device->offload_to_be_enabled = device->offload_enabled; |
1226 | device->offload_enabled = 0; | |
edd16368 SC |
1227 | return 0; |
1228 | } | |
1229 | ||
bd9244f7 ST |
1230 | /* Update an entry in h->dev[] array. */ |
1231 | static void hpsa_scsi_update_entry(struct ctlr_info *h, int hostno, | |
1232 | int entry, struct hpsa_scsi_dev_t *new_entry) | |
1233 | { | |
a473d86c | 1234 | int offload_enabled; |
bd9244f7 ST |
1235 | /* assumes h->devlock is held */ |
1236 | BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); | |
1237 | ||
1238 | /* Raid level changed. */ | |
1239 | h->dev[entry]->raid_level = new_entry->raid_level; | |
250fb125 | 1240 | |
03383736 DB |
1241 | /* Raid offload parameters changed. Careful about the ordering. */ |
1242 | if (new_entry->offload_config && new_entry->offload_enabled) { | |
1243 | /* | |
1244 | * if drive is newly offload_enabled, we want to copy the | |
1245 | * raid map data first. If previously offload_enabled and | |
1246 | * offload_config were set, raid map data had better be | |
1247 | * the same as it was before. if raid map data is changed | |
1248 | * then it had better be the case that | |
1249 | * h->dev[entry]->offload_enabled is currently 0. | |
1250 | */ | |
1251 | h->dev[entry]->raid_map = new_entry->raid_map; | |
1252 | h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle; | |
03383736 | 1253 | } |
a3144e0b JH |
1254 | if (new_entry->hba_ioaccel_enabled) { |
1255 | h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle; | |
1256 | wmb(); /* set ioaccel_handle *before* hba_ioaccel_enabled */ | |
1257 | } | |
1258 | h->dev[entry]->hba_ioaccel_enabled = new_entry->hba_ioaccel_enabled; | |
250fb125 | 1259 | h->dev[entry]->offload_config = new_entry->offload_config; |
9fb0de2d | 1260 | h->dev[entry]->offload_to_mirror = new_entry->offload_to_mirror; |
03383736 | 1261 | h->dev[entry]->queue_depth = new_entry->queue_depth; |
250fb125 | 1262 | |
41ce4c35 SC |
1263 | /* |
1264 | * We can turn off ioaccel offload now, but need to delay turning | |
1265 | * it on until we can update h->dev[entry]->phys_disk[], but we | |
1266 | * can't do that until all the devices are updated. | |
1267 | */ | |
1268 | h->dev[entry]->offload_to_be_enabled = new_entry->offload_enabled; | |
1269 | if (!new_entry->offload_enabled) | |
1270 | h->dev[entry]->offload_enabled = 0; | |
1271 | ||
a473d86c RE |
1272 | offload_enabled = h->dev[entry]->offload_enabled; |
1273 | h->dev[entry]->offload_enabled = h->dev[entry]->offload_to_be_enabled; | |
0d96ef5f | 1274 | hpsa_show_dev_msg(KERN_INFO, h, h->dev[entry], "updated"); |
a473d86c | 1275 | h->dev[entry]->offload_enabled = offload_enabled; |
bd9244f7 ST |
1276 | } |
1277 | ||
2a8ccf31 SC |
1278 | /* Replace an entry from h->dev[] array. */ |
1279 | static void hpsa_scsi_replace_entry(struct ctlr_info *h, int hostno, | |
1280 | int entry, struct hpsa_scsi_dev_t *new_entry, | |
1281 | struct hpsa_scsi_dev_t *added[], int *nadded, | |
1282 | struct hpsa_scsi_dev_t *removed[], int *nremoved) | |
1283 | { | |
1284 | /* assumes h->devlock is held */ | |
cfe5badc | 1285 | BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); |
2a8ccf31 SC |
1286 | removed[*nremoved] = h->dev[entry]; |
1287 | (*nremoved)++; | |
01350d05 SC |
1288 | |
1289 | /* | |
1290 | * New physical devices won't have target/lun assigned yet | |
1291 | * so we need to preserve the values in the slot we are replacing. | |
1292 | */ | |
1293 | if (new_entry->target == -1) { | |
1294 | new_entry->target = h->dev[entry]->target; | |
1295 | new_entry->lun = h->dev[entry]->lun; | |
1296 | } | |
1297 | ||
2a8ccf31 SC |
1298 | h->dev[entry] = new_entry; |
1299 | added[*nadded] = new_entry; | |
1300 | (*nadded)++; | |
0d96ef5f | 1301 | hpsa_show_dev_msg(KERN_INFO, h, new_entry, "replaced"); |
a473d86c RE |
1302 | new_entry->offload_to_be_enabled = new_entry->offload_enabled; |
1303 | new_entry->offload_enabled = 0; | |
2a8ccf31 SC |
1304 | } |
1305 | ||
edd16368 SC |
1306 | /* Remove an entry from h->dev[] array. */ |
1307 | static void hpsa_scsi_remove_entry(struct ctlr_info *h, int hostno, int entry, | |
1308 | struct hpsa_scsi_dev_t *removed[], int *nremoved) | |
1309 | { | |
1310 | /* assumes h->devlock is held */ | |
1311 | int i; | |
1312 | struct hpsa_scsi_dev_t *sd; | |
1313 | ||
cfe5badc | 1314 | BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); |
edd16368 SC |
1315 | |
1316 | sd = h->dev[entry]; | |
1317 | removed[*nremoved] = h->dev[entry]; | |
1318 | (*nremoved)++; | |
1319 | ||
1320 | for (i = entry; i < h->ndevices-1; i++) | |
1321 | h->dev[i] = h->dev[i+1]; | |
1322 | h->ndevices--; | |
0d96ef5f | 1323 | hpsa_show_dev_msg(KERN_INFO, h, sd, "removed"); |
edd16368 SC |
1324 | } |
1325 | ||
1326 | #define SCSI3ADDR_EQ(a, b) ( \ | |
1327 | (a)[7] == (b)[7] && \ | |
1328 | (a)[6] == (b)[6] && \ | |
1329 | (a)[5] == (b)[5] && \ | |
1330 | (a)[4] == (b)[4] && \ | |
1331 | (a)[3] == (b)[3] && \ | |
1332 | (a)[2] == (b)[2] && \ | |
1333 | (a)[1] == (b)[1] && \ | |
1334 | (a)[0] == (b)[0]) | |
1335 | ||
1336 | static void fixup_botched_add(struct ctlr_info *h, | |
1337 | struct hpsa_scsi_dev_t *added) | |
1338 | { | |
1339 | /* called when scsi_add_device fails in order to re-adjust | |
1340 | * h->dev[] to match the mid layer's view. | |
1341 | */ | |
1342 | unsigned long flags; | |
1343 | int i, j; | |
1344 | ||
1345 | spin_lock_irqsave(&h->lock, flags); | |
1346 | for (i = 0; i < h->ndevices; i++) { | |
1347 | if (h->dev[i] == added) { | |
1348 | for (j = i; j < h->ndevices-1; j++) | |
1349 | h->dev[j] = h->dev[j+1]; | |
1350 | h->ndevices--; | |
1351 | break; | |
1352 | } | |
1353 | } | |
1354 | spin_unlock_irqrestore(&h->lock, flags); | |
1355 | kfree(added); | |
1356 | } | |
1357 | ||
1358 | static inline int device_is_the_same(struct hpsa_scsi_dev_t *dev1, | |
1359 | struct hpsa_scsi_dev_t *dev2) | |
1360 | { | |
edd16368 SC |
1361 | /* we compare everything except lun and target as these |
1362 | * are not yet assigned. Compare parts likely | |
1363 | * to differ first | |
1364 | */ | |
1365 | if (memcmp(dev1->scsi3addr, dev2->scsi3addr, | |
1366 | sizeof(dev1->scsi3addr)) != 0) | |
1367 | return 0; | |
1368 | if (memcmp(dev1->device_id, dev2->device_id, | |
1369 | sizeof(dev1->device_id)) != 0) | |
1370 | return 0; | |
1371 | if (memcmp(dev1->model, dev2->model, sizeof(dev1->model)) != 0) | |
1372 | return 0; | |
1373 | if (memcmp(dev1->vendor, dev2->vendor, sizeof(dev1->vendor)) != 0) | |
1374 | return 0; | |
edd16368 SC |
1375 | if (dev1->devtype != dev2->devtype) |
1376 | return 0; | |
edd16368 SC |
1377 | if (dev1->bus != dev2->bus) |
1378 | return 0; | |
1379 | return 1; | |
1380 | } | |
1381 | ||
bd9244f7 ST |
1382 | static inline int device_updated(struct hpsa_scsi_dev_t *dev1, |
1383 | struct hpsa_scsi_dev_t *dev2) | |
1384 | { | |
1385 | /* Device attributes that can change, but don't mean | |
1386 | * that the device is a different device, nor that the OS | |
1387 | * needs to be told anything about the change. | |
1388 | */ | |
1389 | if (dev1->raid_level != dev2->raid_level) | |
1390 | return 1; | |
250fb125 SC |
1391 | if (dev1->offload_config != dev2->offload_config) |
1392 | return 1; | |
1393 | if (dev1->offload_enabled != dev2->offload_enabled) | |
1394 | return 1; | |
93849508 DB |
1395 | if (!is_logical_dev_addr_mode(dev1->scsi3addr)) |
1396 | if (dev1->queue_depth != dev2->queue_depth) | |
1397 | return 1; | |
bd9244f7 ST |
1398 | return 0; |
1399 | } | |
1400 | ||
edd16368 SC |
1401 | /* Find needle in haystack. If exact match found, return DEVICE_SAME, |
1402 | * and return needle location in *index. If scsi3addr matches, but not | |
1403 | * vendor, model, serial num, etc. return DEVICE_CHANGED, and return needle | |
bd9244f7 ST |
1404 | * location in *index. |
1405 | * In the case of a minor device attribute change, such as RAID level, just | |
1406 | * return DEVICE_UPDATED, along with the updated device's location in index. | |
1407 | * If needle not found, return DEVICE_NOT_FOUND. | |
edd16368 SC |
1408 | */ |
1409 | static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t *needle, | |
1410 | struct hpsa_scsi_dev_t *haystack[], int haystack_size, | |
1411 | int *index) | |
1412 | { | |
1413 | int i; | |
1414 | #define DEVICE_NOT_FOUND 0 | |
1415 | #define DEVICE_CHANGED 1 | |
1416 | #define DEVICE_SAME 2 | |
bd9244f7 | 1417 | #define DEVICE_UPDATED 3 |
edd16368 | 1418 | for (i = 0; i < haystack_size; i++) { |
23231048 SC |
1419 | if (haystack[i] == NULL) /* previously removed. */ |
1420 | continue; | |
edd16368 SC |
1421 | if (SCSI3ADDR_EQ(needle->scsi3addr, haystack[i]->scsi3addr)) { |
1422 | *index = i; | |
bd9244f7 ST |
1423 | if (device_is_the_same(needle, haystack[i])) { |
1424 | if (device_updated(needle, haystack[i])) | |
1425 | return DEVICE_UPDATED; | |
edd16368 | 1426 | return DEVICE_SAME; |
bd9244f7 | 1427 | } else { |
9846590e SC |
1428 | /* Keep offline devices offline */ |
1429 | if (needle->volume_offline) | |
1430 | return DEVICE_NOT_FOUND; | |
edd16368 | 1431 | return DEVICE_CHANGED; |
bd9244f7 | 1432 | } |
edd16368 SC |
1433 | } |
1434 | } | |
1435 | *index = -1; | |
1436 | return DEVICE_NOT_FOUND; | |
1437 | } | |
1438 | ||
9846590e SC |
1439 | static void hpsa_monitor_offline_device(struct ctlr_info *h, |
1440 | unsigned char scsi3addr[]) | |
1441 | { | |
1442 | struct offline_device_entry *device; | |
1443 | unsigned long flags; | |
1444 | ||
1445 | /* Check to see if device is already on the list */ | |
1446 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
1447 | list_for_each_entry(device, &h->offline_device_list, offline_list) { | |
1448 | if (memcmp(device->scsi3addr, scsi3addr, | |
1449 | sizeof(device->scsi3addr)) == 0) { | |
1450 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
1451 | return; | |
1452 | } | |
1453 | } | |
1454 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
1455 | ||
1456 | /* Device is not on the list, add it. */ | |
1457 | device = kmalloc(sizeof(*device), GFP_KERNEL); | |
1458 | if (!device) { | |
1459 | dev_warn(&h->pdev->dev, "out of memory in %s\n", __func__); | |
1460 | return; | |
1461 | } | |
1462 | memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); | |
1463 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
1464 | list_add_tail(&device->offline_list, &h->offline_device_list); | |
1465 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
1466 | } | |
1467 | ||
1468 | /* Print a message explaining various offline volume states */ | |
1469 | static void hpsa_show_volume_status(struct ctlr_info *h, | |
1470 | struct hpsa_scsi_dev_t *sd) | |
1471 | { | |
1472 | if (sd->volume_offline == HPSA_VPD_LV_STATUS_UNSUPPORTED) | |
1473 | dev_info(&h->pdev->dev, | |
1474 | "C%d:B%d:T%d:L%d Volume status is not available through vital product data pages.\n", | |
1475 | h->scsi_host->host_no, | |
1476 | sd->bus, sd->target, sd->lun); | |
1477 | switch (sd->volume_offline) { | |
1478 | case HPSA_LV_OK: | |
1479 | break; | |
1480 | case HPSA_LV_UNDERGOING_ERASE: | |
1481 | dev_info(&h->pdev->dev, | |
1482 | "C%d:B%d:T%d:L%d Volume is undergoing background erase process.\n", | |
1483 | h->scsi_host->host_no, | |
1484 | sd->bus, sd->target, sd->lun); | |
1485 | break; | |
5ca01204 SB |
1486 | case HPSA_LV_NOT_AVAILABLE: |
1487 | dev_info(&h->pdev->dev, | |
1488 | "C%d:B%d:T%d:L%d Volume is waiting for transforming volume.\n", | |
1489 | h->scsi_host->host_no, | |
1490 | sd->bus, sd->target, sd->lun); | |
1491 | break; | |
9846590e SC |
1492 | case HPSA_LV_UNDERGOING_RPI: |
1493 | dev_info(&h->pdev->dev, | |
5ca01204 | 1494 | "C%d:B%d:T%d:L%d Volume is undergoing rapid parity init.\n", |
9846590e SC |
1495 | h->scsi_host->host_no, |
1496 | sd->bus, sd->target, sd->lun); | |
1497 | break; | |
1498 | case HPSA_LV_PENDING_RPI: | |
1499 | dev_info(&h->pdev->dev, | |
5ca01204 SB |
1500 | "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n", |
1501 | h->scsi_host->host_no, | |
1502 | sd->bus, sd->target, sd->lun); | |
9846590e SC |
1503 | break; |
1504 | case HPSA_LV_ENCRYPTED_NO_KEY: | |
1505 | dev_info(&h->pdev->dev, | |
1506 | "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because key is not present.\n", | |
1507 | h->scsi_host->host_no, | |
1508 | sd->bus, sd->target, sd->lun); | |
1509 | break; | |
1510 | case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER: | |
1511 | dev_info(&h->pdev->dev, | |
1512 | "C%d:B%d:T%d:L%d Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.\n", | |
1513 | h->scsi_host->host_no, | |
1514 | sd->bus, sd->target, sd->lun); | |
1515 | break; | |
1516 | case HPSA_LV_UNDERGOING_ENCRYPTION: | |
1517 | dev_info(&h->pdev->dev, | |
1518 | "C%d:B%d:T%d:L%d Volume is undergoing encryption process.\n", | |
1519 | h->scsi_host->host_no, | |
1520 | sd->bus, sd->target, sd->lun); | |
1521 | break; | |
1522 | case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING: | |
1523 | dev_info(&h->pdev->dev, | |
1524 | "C%d:B%d:T%d:L%d Volume is undergoing encryption re-keying process.\n", | |
1525 | h->scsi_host->host_no, | |
1526 | sd->bus, sd->target, sd->lun); | |
1527 | break; | |
1528 | case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: | |
1529 | dev_info(&h->pdev->dev, | |
1530 | "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because controller does not have encryption enabled.\n", | |
1531 | h->scsi_host->host_no, | |
1532 | sd->bus, sd->target, sd->lun); | |
1533 | break; | |
1534 | case HPSA_LV_PENDING_ENCRYPTION: | |
1535 | dev_info(&h->pdev->dev, | |
1536 | "C%d:B%d:T%d:L%d Volume is pending migration to encrypted state, but process has not started.\n", | |
1537 | h->scsi_host->host_no, | |
1538 | sd->bus, sd->target, sd->lun); | |
1539 | break; | |
1540 | case HPSA_LV_PENDING_ENCRYPTION_REKEYING: | |
1541 | dev_info(&h->pdev->dev, | |
1542 | "C%d:B%d:T%d:L%d Volume is encrypted and is pending encryption rekeying.\n", | |
1543 | h->scsi_host->host_no, | |
1544 | sd->bus, sd->target, sd->lun); | |
1545 | break; | |
1546 | } | |
1547 | } | |
1548 | ||
03383736 DB |
1549 | /* |
1550 | * Figure the list of physical drive pointers for a logical drive with | |
1551 | * raid offload configured. | |
1552 | */ | |
1553 | static void hpsa_figure_phys_disk_ptrs(struct ctlr_info *h, | |
1554 | struct hpsa_scsi_dev_t *dev[], int ndevices, | |
1555 | struct hpsa_scsi_dev_t *logical_drive) | |
1556 | { | |
1557 | struct raid_map_data *map = &logical_drive->raid_map; | |
1558 | struct raid_map_disk_data *dd = &map->data[0]; | |
1559 | int i, j; | |
1560 | int total_disks_per_row = le16_to_cpu(map->data_disks_per_row) + | |
1561 | le16_to_cpu(map->metadata_disks_per_row); | |
1562 | int nraid_map_entries = le16_to_cpu(map->row_cnt) * | |
1563 | le16_to_cpu(map->layout_map_count) * | |
1564 | total_disks_per_row; | |
1565 | int nphys_disk = le16_to_cpu(map->layout_map_count) * | |
1566 | total_disks_per_row; | |
1567 | int qdepth; | |
1568 | ||
1569 | if (nraid_map_entries > RAID_MAP_MAX_ENTRIES) | |
1570 | nraid_map_entries = RAID_MAP_MAX_ENTRIES; | |
1571 | ||
d604f533 WS |
1572 | logical_drive->nphysical_disks = nraid_map_entries; |
1573 | ||
03383736 DB |
1574 | qdepth = 0; |
1575 | for (i = 0; i < nraid_map_entries; i++) { | |
1576 | logical_drive->phys_disk[i] = NULL; | |
1577 | if (!logical_drive->offload_config) | |
1578 | continue; | |
1579 | for (j = 0; j < ndevices; j++) { | |
1580 | if (dev[j]->devtype != TYPE_DISK) | |
1581 | continue; | |
1582 | if (is_logical_dev_addr_mode(dev[j]->scsi3addr)) | |
1583 | continue; | |
1584 | if (dev[j]->ioaccel_handle != dd[i].ioaccel_handle) | |
1585 | continue; | |
1586 | ||
1587 | logical_drive->phys_disk[i] = dev[j]; | |
1588 | if (i < nphys_disk) | |
1589 | qdepth = min(h->nr_cmds, qdepth + | |
1590 | logical_drive->phys_disk[i]->queue_depth); | |
1591 | break; | |
1592 | } | |
1593 | ||
1594 | /* | |
1595 | * This can happen if a physical drive is removed and | |
1596 | * the logical drive is degraded. In that case, the RAID | |
1597 | * map data will refer to a physical disk which isn't actually | |
1598 | * present. And in that case offload_enabled should already | |
1599 | * be 0, but we'll turn it off here just in case | |
1600 | */ | |
1601 | if (!logical_drive->phys_disk[i]) { | |
1602 | logical_drive->offload_enabled = 0; | |
41ce4c35 SC |
1603 | logical_drive->offload_to_be_enabled = 0; |
1604 | logical_drive->queue_depth = 8; | |
03383736 DB |
1605 | } |
1606 | } | |
1607 | if (nraid_map_entries) | |
1608 | /* | |
1609 | * This is correct for reads, too high for full stripe writes, | |
1610 | * way too high for partial stripe writes | |
1611 | */ | |
1612 | logical_drive->queue_depth = qdepth; | |
1613 | else | |
1614 | logical_drive->queue_depth = h->nr_cmds; | |
1615 | } | |
1616 | ||
1617 | static void hpsa_update_log_drive_phys_drive_ptrs(struct ctlr_info *h, | |
1618 | struct hpsa_scsi_dev_t *dev[], int ndevices) | |
1619 | { | |
1620 | int i; | |
1621 | ||
1622 | for (i = 0; i < ndevices; i++) { | |
1623 | if (dev[i]->devtype != TYPE_DISK) | |
1624 | continue; | |
1625 | if (!is_logical_dev_addr_mode(dev[i]->scsi3addr)) | |
1626 | continue; | |
41ce4c35 SC |
1627 | |
1628 | /* | |
1629 | * If offload is currently enabled, the RAID map and | |
1630 | * phys_disk[] assignment *better* not be changing | |
1631 | * and since it isn't changing, we do not need to | |
1632 | * update it. | |
1633 | */ | |
1634 | if (dev[i]->offload_enabled) | |
1635 | continue; | |
1636 | ||
03383736 DB |
1637 | hpsa_figure_phys_disk_ptrs(h, dev, ndevices, dev[i]); |
1638 | } | |
1639 | } | |
1640 | ||
4967bd3e | 1641 | static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno, |
edd16368 SC |
1642 | struct hpsa_scsi_dev_t *sd[], int nsds) |
1643 | { | |
1644 | /* sd contains scsi3 addresses and devtypes, and inquiry | |
1645 | * data. This function takes what's in sd to be the current | |
1646 | * reality and updates h->dev[] to reflect that reality. | |
1647 | */ | |
1648 | int i, entry, device_change, changes = 0; | |
1649 | struct hpsa_scsi_dev_t *csd; | |
1650 | unsigned long flags; | |
1651 | struct hpsa_scsi_dev_t **added, **removed; | |
1652 | int nadded, nremoved; | |
1653 | struct Scsi_Host *sh = NULL; | |
1654 | ||
cfe5badc ST |
1655 | added = kzalloc(sizeof(*added) * HPSA_MAX_DEVICES, GFP_KERNEL); |
1656 | removed = kzalloc(sizeof(*removed) * HPSA_MAX_DEVICES, GFP_KERNEL); | |
edd16368 SC |
1657 | |
1658 | if (!added || !removed) { | |
1659 | dev_warn(&h->pdev->dev, "out of memory in " | |
1660 | "adjust_hpsa_scsi_table\n"); | |
1661 | goto free_and_out; | |
1662 | } | |
1663 | ||
1664 | spin_lock_irqsave(&h->devlock, flags); | |
1665 | ||
1666 | /* find any devices in h->dev[] that are not in | |
1667 | * sd[] and remove them from h->dev[], and for any | |
1668 | * devices which have changed, remove the old device | |
1669 | * info and add the new device info. | |
bd9244f7 ST |
1670 | * If minor device attributes change, just update |
1671 | * the existing device structure. | |
edd16368 SC |
1672 | */ |
1673 | i = 0; | |
1674 | nremoved = 0; | |
1675 | nadded = 0; | |
1676 | while (i < h->ndevices) { | |
1677 | csd = h->dev[i]; | |
1678 | device_change = hpsa_scsi_find_entry(csd, sd, nsds, &entry); | |
1679 | if (device_change == DEVICE_NOT_FOUND) { | |
1680 | changes++; | |
1681 | hpsa_scsi_remove_entry(h, hostno, i, | |
1682 | removed, &nremoved); | |
1683 | continue; /* remove ^^^, hence i not incremented */ | |
1684 | } else if (device_change == DEVICE_CHANGED) { | |
1685 | changes++; | |
2a8ccf31 SC |
1686 | hpsa_scsi_replace_entry(h, hostno, i, sd[entry], |
1687 | added, &nadded, removed, &nremoved); | |
c7f172dc SC |
1688 | /* Set it to NULL to prevent it from being freed |
1689 | * at the bottom of hpsa_update_scsi_devices() | |
1690 | */ | |
1691 | sd[entry] = NULL; | |
bd9244f7 ST |
1692 | } else if (device_change == DEVICE_UPDATED) { |
1693 | hpsa_scsi_update_entry(h, hostno, i, sd[entry]); | |
edd16368 SC |
1694 | } |
1695 | i++; | |
1696 | } | |
1697 | ||
1698 | /* Now, make sure every device listed in sd[] is also | |
1699 | * listed in h->dev[], adding them if they aren't found | |
1700 | */ | |
1701 | ||
1702 | for (i = 0; i < nsds; i++) { | |
1703 | if (!sd[i]) /* if already added above. */ | |
1704 | continue; | |
9846590e SC |
1705 | |
1706 | /* Don't add devices which are NOT READY, FORMAT IN PROGRESS | |
1707 | * as the SCSI mid-layer does not handle such devices well. | |
1708 | * It relentlessly loops sending TUR at 3Hz, then READ(10) | |
1709 | * at 160Hz, and prevents the system from coming up. | |
1710 | */ | |
1711 | if (sd[i]->volume_offline) { | |
1712 | hpsa_show_volume_status(h, sd[i]); | |
0d96ef5f | 1713 | hpsa_show_dev_msg(KERN_INFO, h, sd[i], "offline"); |
9846590e SC |
1714 | continue; |
1715 | } | |
1716 | ||
edd16368 SC |
1717 | device_change = hpsa_scsi_find_entry(sd[i], h->dev, |
1718 | h->ndevices, &entry); | |
1719 | if (device_change == DEVICE_NOT_FOUND) { | |
1720 | changes++; | |
1721 | if (hpsa_scsi_add_entry(h, hostno, sd[i], | |
1722 | added, &nadded) != 0) | |
1723 | break; | |
1724 | sd[i] = NULL; /* prevent from being freed later. */ | |
1725 | } else if (device_change == DEVICE_CHANGED) { | |
1726 | /* should never happen... */ | |
1727 | changes++; | |
1728 | dev_warn(&h->pdev->dev, | |
1729 | "device unexpectedly changed.\n"); | |
1730 | /* but if it does happen, we just ignore that device */ | |
1731 | } | |
1732 | } | |
41ce4c35 SC |
1733 | hpsa_update_log_drive_phys_drive_ptrs(h, h->dev, h->ndevices); |
1734 | ||
1735 | /* Now that h->dev[]->phys_disk[] is coherent, we can enable | |
1736 | * any logical drives that need it enabled. | |
1737 | */ | |
1738 | for (i = 0; i < h->ndevices; i++) | |
1739 | h->dev[i]->offload_enabled = h->dev[i]->offload_to_be_enabled; | |
1740 | ||
edd16368 SC |
1741 | spin_unlock_irqrestore(&h->devlock, flags); |
1742 | ||
9846590e SC |
1743 | /* Monitor devices which are in one of several NOT READY states to be |
1744 | * brought online later. This must be done without holding h->devlock, | |
1745 | * so don't touch h->dev[] | |
1746 | */ | |
1747 | for (i = 0; i < nsds; i++) { | |
1748 | if (!sd[i]) /* if already added above. */ | |
1749 | continue; | |
1750 | if (sd[i]->volume_offline) | |
1751 | hpsa_monitor_offline_device(h, sd[i]->scsi3addr); | |
1752 | } | |
1753 | ||
edd16368 SC |
1754 | /* Don't notify scsi mid layer of any changes the first time through |
1755 | * (or if there are no changes) scsi_scan_host will do it later the | |
1756 | * first time through. | |
1757 | */ | |
1758 | if (hostno == -1 || !changes) | |
1759 | goto free_and_out; | |
1760 | ||
1761 | sh = h->scsi_host; | |
1762 | /* Notify scsi mid layer of any removed devices */ | |
1763 | for (i = 0; i < nremoved; i++) { | |
41ce4c35 SC |
1764 | if (removed[i]->expose_state & HPSA_SCSI_ADD) { |
1765 | struct scsi_device *sdev = | |
1766 | scsi_device_lookup(sh, removed[i]->bus, | |
1767 | removed[i]->target, removed[i]->lun); | |
1768 | if (sdev != NULL) { | |
1769 | scsi_remove_device(sdev); | |
1770 | scsi_device_put(sdev); | |
1771 | } else { | |
1772 | /* | |
1773 | * We don't expect to get here. | |
1774 | * future cmds to this device will get selection | |
1775 | * timeout as if the device was gone. | |
1776 | */ | |
0d96ef5f WS |
1777 | hpsa_show_dev_msg(KERN_WARNING, h, removed[i], |
1778 | "didn't find device for removal."); | |
41ce4c35 | 1779 | } |
edd16368 SC |
1780 | } |
1781 | kfree(removed[i]); | |
1782 | removed[i] = NULL; | |
1783 | } | |
1784 | ||
1785 | /* Notify scsi mid layer of any added devices */ | |
1786 | for (i = 0; i < nadded; i++) { | |
41ce4c35 SC |
1787 | if (!(added[i]->expose_state & HPSA_SCSI_ADD)) |
1788 | continue; | |
edd16368 SC |
1789 | if (scsi_add_device(sh, added[i]->bus, |
1790 | added[i]->target, added[i]->lun) == 0) | |
1791 | continue; | |
0d96ef5f WS |
1792 | hpsa_show_dev_msg(KERN_WARNING, h, added[i], |
1793 | "addition failed, device not added."); | |
edd16368 SC |
1794 | /* now we have to remove it from h->dev, |
1795 | * since it didn't get added to scsi mid layer | |
1796 | */ | |
1797 | fixup_botched_add(h, added[i]); | |
105a3dbc | 1798 | added[i] = NULL; |
edd16368 SC |
1799 | } |
1800 | ||
1801 | free_and_out: | |
1802 | kfree(added); | |
1803 | kfree(removed); | |
edd16368 SC |
1804 | } |
1805 | ||
1806 | /* | |
9e03aa2f | 1807 | * Lookup bus/target/lun and return corresponding struct hpsa_scsi_dev_t * |
edd16368 SC |
1808 | * Assume's h->devlock is held. |
1809 | */ | |
1810 | static struct hpsa_scsi_dev_t *lookup_hpsa_scsi_dev(struct ctlr_info *h, | |
1811 | int bus, int target, int lun) | |
1812 | { | |
1813 | int i; | |
1814 | struct hpsa_scsi_dev_t *sd; | |
1815 | ||
1816 | for (i = 0; i < h->ndevices; i++) { | |
1817 | sd = h->dev[i]; | |
1818 | if (sd->bus == bus && sd->target == target && sd->lun == lun) | |
1819 | return sd; | |
1820 | } | |
1821 | return NULL; | |
1822 | } | |
1823 | ||
edd16368 SC |
1824 | static int hpsa_slave_alloc(struct scsi_device *sdev) |
1825 | { | |
1826 | struct hpsa_scsi_dev_t *sd; | |
1827 | unsigned long flags; | |
1828 | struct ctlr_info *h; | |
1829 | ||
1830 | h = sdev_to_hba(sdev); | |
1831 | spin_lock_irqsave(&h->devlock, flags); | |
1832 | sd = lookup_hpsa_scsi_dev(h, sdev_channel(sdev), | |
1833 | sdev_id(sdev), sdev->lun); | |
41ce4c35 | 1834 | if (likely(sd)) { |
03383736 | 1835 | atomic_set(&sd->ioaccel_cmds_out, 0); |
41ce4c35 SC |
1836 | sdev->hostdata = (sd->expose_state & HPSA_SCSI_ADD) ? sd : NULL; |
1837 | } else | |
1838 | sdev->hostdata = NULL; | |
edd16368 SC |
1839 | spin_unlock_irqrestore(&h->devlock, flags); |
1840 | return 0; | |
1841 | } | |
1842 | ||
41ce4c35 SC |
1843 | /* configure scsi device based on internal per-device structure */ |
1844 | static int hpsa_slave_configure(struct scsi_device *sdev) | |
1845 | { | |
1846 | struct hpsa_scsi_dev_t *sd; | |
1847 | int queue_depth; | |
1848 | ||
1849 | sd = sdev->hostdata; | |
1850 | sdev->no_uld_attach = !sd || !(sd->expose_state & HPSA_ULD_ATTACH); | |
1851 | ||
1852 | if (sd) | |
1853 | queue_depth = sd->queue_depth != 0 ? | |
1854 | sd->queue_depth : sdev->host->can_queue; | |
1855 | else | |
1856 | queue_depth = sdev->host->can_queue; | |
1857 | ||
1858 | scsi_change_queue_depth(sdev, queue_depth); | |
1859 | ||
1860 | return 0; | |
1861 | } | |
1862 | ||
edd16368 SC |
1863 | static void hpsa_slave_destroy(struct scsi_device *sdev) |
1864 | { | |
bcc44255 | 1865 | /* nothing to do. */ |
edd16368 SC |
1866 | } |
1867 | ||
d9a729f3 WS |
1868 | static void hpsa_free_ioaccel2_sg_chain_blocks(struct ctlr_info *h) |
1869 | { | |
1870 | int i; | |
1871 | ||
1872 | if (!h->ioaccel2_cmd_sg_list) | |
1873 | return; | |
1874 | for (i = 0; i < h->nr_cmds; i++) { | |
1875 | kfree(h->ioaccel2_cmd_sg_list[i]); | |
1876 | h->ioaccel2_cmd_sg_list[i] = NULL; | |
1877 | } | |
1878 | kfree(h->ioaccel2_cmd_sg_list); | |
1879 | h->ioaccel2_cmd_sg_list = NULL; | |
1880 | } | |
1881 | ||
1882 | static int hpsa_allocate_ioaccel2_sg_chain_blocks(struct ctlr_info *h) | |
1883 | { | |
1884 | int i; | |
1885 | ||
1886 | if (h->chainsize <= 0) | |
1887 | return 0; | |
1888 | ||
1889 | h->ioaccel2_cmd_sg_list = | |
1890 | kzalloc(sizeof(*h->ioaccel2_cmd_sg_list) * h->nr_cmds, | |
1891 | GFP_KERNEL); | |
1892 | if (!h->ioaccel2_cmd_sg_list) | |
1893 | return -ENOMEM; | |
1894 | for (i = 0; i < h->nr_cmds; i++) { | |
1895 | h->ioaccel2_cmd_sg_list[i] = | |
1896 | kmalloc(sizeof(*h->ioaccel2_cmd_sg_list[i]) * | |
1897 | h->maxsgentries, GFP_KERNEL); | |
1898 | if (!h->ioaccel2_cmd_sg_list[i]) | |
1899 | goto clean; | |
1900 | } | |
1901 | return 0; | |
1902 | ||
1903 | clean: | |
1904 | hpsa_free_ioaccel2_sg_chain_blocks(h); | |
1905 | return -ENOMEM; | |
1906 | } | |
1907 | ||
33a2ffce SC |
1908 | static void hpsa_free_sg_chain_blocks(struct ctlr_info *h) |
1909 | { | |
1910 | int i; | |
1911 | ||
1912 | if (!h->cmd_sg_list) | |
1913 | return; | |
1914 | for (i = 0; i < h->nr_cmds; i++) { | |
1915 | kfree(h->cmd_sg_list[i]); | |
1916 | h->cmd_sg_list[i] = NULL; | |
1917 | } | |
1918 | kfree(h->cmd_sg_list); | |
1919 | h->cmd_sg_list = NULL; | |
1920 | } | |
1921 | ||
105a3dbc | 1922 | static int hpsa_alloc_sg_chain_blocks(struct ctlr_info *h) |
33a2ffce SC |
1923 | { |
1924 | int i; | |
1925 | ||
1926 | if (h->chainsize <= 0) | |
1927 | return 0; | |
1928 | ||
1929 | h->cmd_sg_list = kzalloc(sizeof(*h->cmd_sg_list) * h->nr_cmds, | |
1930 | GFP_KERNEL); | |
3d4e6af8 RE |
1931 | if (!h->cmd_sg_list) { |
1932 | dev_err(&h->pdev->dev, "Failed to allocate SG list\n"); | |
33a2ffce | 1933 | return -ENOMEM; |
3d4e6af8 | 1934 | } |
33a2ffce SC |
1935 | for (i = 0; i < h->nr_cmds; i++) { |
1936 | h->cmd_sg_list[i] = kmalloc(sizeof(*h->cmd_sg_list[i]) * | |
1937 | h->chainsize, GFP_KERNEL); | |
3d4e6af8 RE |
1938 | if (!h->cmd_sg_list[i]) { |
1939 | dev_err(&h->pdev->dev, "Failed to allocate cmd SG\n"); | |
33a2ffce | 1940 | goto clean; |
3d4e6af8 | 1941 | } |
33a2ffce SC |
1942 | } |
1943 | return 0; | |
1944 | ||
1945 | clean: | |
1946 | hpsa_free_sg_chain_blocks(h); | |
1947 | return -ENOMEM; | |
1948 | } | |
1949 | ||
d9a729f3 WS |
1950 | static int hpsa_map_ioaccel2_sg_chain_block(struct ctlr_info *h, |
1951 | struct io_accel2_cmd *cp, struct CommandList *c) | |
1952 | { | |
1953 | struct ioaccel2_sg_element *chain_block; | |
1954 | u64 temp64; | |
1955 | u32 chain_size; | |
1956 | ||
1957 | chain_block = h->ioaccel2_cmd_sg_list[c->cmdindex]; | |
1958 | chain_size = le32_to_cpu(cp->data_len); | |
1959 | temp64 = pci_map_single(h->pdev, chain_block, chain_size, | |
1960 | PCI_DMA_TODEVICE); | |
1961 | if (dma_mapping_error(&h->pdev->dev, temp64)) { | |
1962 | /* prevent subsequent unmapping */ | |
1963 | cp->sg->address = 0; | |
1964 | return -1; | |
1965 | } | |
1966 | cp->sg->address = cpu_to_le64(temp64); | |
1967 | return 0; | |
1968 | } | |
1969 | ||
1970 | static void hpsa_unmap_ioaccel2_sg_chain_block(struct ctlr_info *h, | |
1971 | struct io_accel2_cmd *cp) | |
1972 | { | |
1973 | struct ioaccel2_sg_element *chain_sg; | |
1974 | u64 temp64; | |
1975 | u32 chain_size; | |
1976 | ||
1977 | chain_sg = cp->sg; | |
1978 | temp64 = le64_to_cpu(chain_sg->address); | |
1979 | chain_size = le32_to_cpu(cp->data_len); | |
1980 | pci_unmap_single(h->pdev, temp64, chain_size, PCI_DMA_TODEVICE); | |
1981 | } | |
1982 | ||
e2bea6df | 1983 | static int hpsa_map_sg_chain_block(struct ctlr_info *h, |
33a2ffce SC |
1984 | struct CommandList *c) |
1985 | { | |
1986 | struct SGDescriptor *chain_sg, *chain_block; | |
1987 | u64 temp64; | |
50a0decf | 1988 | u32 chain_len; |
33a2ffce SC |
1989 | |
1990 | chain_sg = &c->SG[h->max_cmd_sg_entries - 1]; | |
1991 | chain_block = h->cmd_sg_list[c->cmdindex]; | |
50a0decf SC |
1992 | chain_sg->Ext = cpu_to_le32(HPSA_SG_CHAIN); |
1993 | chain_len = sizeof(*chain_sg) * | |
2b08b3e9 | 1994 | (le16_to_cpu(c->Header.SGTotal) - h->max_cmd_sg_entries); |
50a0decf SC |
1995 | chain_sg->Len = cpu_to_le32(chain_len); |
1996 | temp64 = pci_map_single(h->pdev, chain_block, chain_len, | |
33a2ffce | 1997 | PCI_DMA_TODEVICE); |
e2bea6df SC |
1998 | if (dma_mapping_error(&h->pdev->dev, temp64)) { |
1999 | /* prevent subsequent unmapping */ | |
50a0decf | 2000 | chain_sg->Addr = cpu_to_le64(0); |
e2bea6df SC |
2001 | return -1; |
2002 | } | |
50a0decf | 2003 | chain_sg->Addr = cpu_to_le64(temp64); |
e2bea6df | 2004 | return 0; |
33a2ffce SC |
2005 | } |
2006 | ||
2007 | static void hpsa_unmap_sg_chain_block(struct ctlr_info *h, | |
2008 | struct CommandList *c) | |
2009 | { | |
2010 | struct SGDescriptor *chain_sg; | |
33a2ffce | 2011 | |
50a0decf | 2012 | if (le16_to_cpu(c->Header.SGTotal) <= h->max_cmd_sg_entries) |
33a2ffce SC |
2013 | return; |
2014 | ||
2015 | chain_sg = &c->SG[h->max_cmd_sg_entries - 1]; | |
50a0decf SC |
2016 | pci_unmap_single(h->pdev, le64_to_cpu(chain_sg->Addr), |
2017 | le32_to_cpu(chain_sg->Len), PCI_DMA_TODEVICE); | |
33a2ffce SC |
2018 | } |
2019 | ||
a09c1441 ST |
2020 | |
2021 | /* Decode the various types of errors on ioaccel2 path. | |
2022 | * Return 1 for any error that should generate a RAID path retry. | |
2023 | * Return 0 for errors that don't require a RAID path retry. | |
2024 | */ | |
2025 | static int handle_ioaccel_mode2_error(struct ctlr_info *h, | |
c349775e ST |
2026 | struct CommandList *c, |
2027 | struct scsi_cmnd *cmd, | |
2028 | struct io_accel2_cmd *c2) | |
2029 | { | |
2030 | int data_len; | |
a09c1441 | 2031 | int retry = 0; |
c40820d5 | 2032 | u32 ioaccel2_resid = 0; |
c349775e ST |
2033 | |
2034 | switch (c2->error_data.serv_response) { | |
2035 | case IOACCEL2_SERV_RESPONSE_COMPLETE: | |
2036 | switch (c2->error_data.status) { | |
2037 | case IOACCEL2_STATUS_SR_TASK_COMP_GOOD: | |
2038 | break; | |
2039 | case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND: | |
ee6b1889 | 2040 | cmd->result |= SAM_STAT_CHECK_CONDITION; |
c349775e | 2041 | if (c2->error_data.data_present != |
ee6b1889 SC |
2042 | IOACCEL2_SENSE_DATA_PRESENT) { |
2043 | memset(cmd->sense_buffer, 0, | |
2044 | SCSI_SENSE_BUFFERSIZE); | |
c349775e | 2045 | break; |
ee6b1889 | 2046 | } |
c349775e ST |
2047 | /* copy the sense data */ |
2048 | data_len = c2->error_data.sense_data_len; | |
2049 | if (data_len > SCSI_SENSE_BUFFERSIZE) | |
2050 | data_len = SCSI_SENSE_BUFFERSIZE; | |
2051 | if (data_len > sizeof(c2->error_data.sense_data_buff)) | |
2052 | data_len = | |
2053 | sizeof(c2->error_data.sense_data_buff); | |
2054 | memcpy(cmd->sense_buffer, | |
2055 | c2->error_data.sense_data_buff, data_len); | |
a09c1441 | 2056 | retry = 1; |
c349775e ST |
2057 | break; |
2058 | case IOACCEL2_STATUS_SR_TASK_COMP_BUSY: | |
a09c1441 | 2059 | retry = 1; |
c349775e ST |
2060 | break; |
2061 | case IOACCEL2_STATUS_SR_TASK_COMP_RES_CON: | |
a09c1441 | 2062 | retry = 1; |
c349775e ST |
2063 | break; |
2064 | case IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL: | |
4a8da22b | 2065 | retry = 1; |
c349775e ST |
2066 | break; |
2067 | case IOACCEL2_STATUS_SR_TASK_COMP_ABORTED: | |
a09c1441 | 2068 | retry = 1; |
c349775e ST |
2069 | break; |
2070 | default: | |
a09c1441 | 2071 | retry = 1; |
c349775e ST |
2072 | break; |
2073 | } | |
2074 | break; | |
2075 | case IOACCEL2_SERV_RESPONSE_FAILURE: | |
c40820d5 JH |
2076 | switch (c2->error_data.status) { |
2077 | case IOACCEL2_STATUS_SR_IO_ERROR: | |
2078 | case IOACCEL2_STATUS_SR_IO_ABORTED: | |
2079 | case IOACCEL2_STATUS_SR_OVERRUN: | |
2080 | retry = 1; | |
2081 | break; | |
2082 | case IOACCEL2_STATUS_SR_UNDERRUN: | |
2083 | cmd->result = (DID_OK << 16); /* host byte */ | |
2084 | cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ | |
2085 | ioaccel2_resid = get_unaligned_le32( | |
2086 | &c2->error_data.resid_cnt[0]); | |
2087 | scsi_set_resid(cmd, ioaccel2_resid); | |
2088 | break; | |
2089 | case IOACCEL2_STATUS_SR_NO_PATH_TO_DEVICE: | |
2090 | case IOACCEL2_STATUS_SR_INVALID_DEVICE: | |
2091 | case IOACCEL2_STATUS_SR_IOACCEL_DISABLED: | |
2092 | /* We will get an event from ctlr to trigger rescan */ | |
2093 | retry = 1; | |
2094 | break; | |
2095 | default: | |
2096 | retry = 1; | |
c40820d5 | 2097 | } |
c349775e ST |
2098 | break; |
2099 | case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE: | |
2100 | break; | |
2101 | case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS: | |
2102 | break; | |
2103 | case IOACCEL2_SERV_RESPONSE_TMF_REJECTED: | |
a09c1441 | 2104 | retry = 1; |
c349775e ST |
2105 | break; |
2106 | case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN: | |
c349775e ST |
2107 | break; |
2108 | default: | |
a09c1441 | 2109 | retry = 1; |
c349775e ST |
2110 | break; |
2111 | } | |
a09c1441 ST |
2112 | |
2113 | return retry; /* retry on raid path? */ | |
c349775e ST |
2114 | } |
2115 | ||
a58e7e53 WS |
2116 | static void hpsa_cmd_resolve_events(struct ctlr_info *h, |
2117 | struct CommandList *c) | |
2118 | { | |
d604f533 WS |
2119 | bool do_wake = false; |
2120 | ||
a58e7e53 WS |
2121 | /* |
2122 | * Prevent the following race in the abort handler: | |
2123 | * | |
2124 | * 1. LLD is requested to abort a SCSI command | |
2125 | * 2. The SCSI command completes | |
2126 | * 3. The struct CommandList associated with step 2 is made available | |
2127 | * 4. New I/O request to LLD to another LUN re-uses struct CommandList | |
2128 | * 5. Abort handler follows scsi_cmnd->host_scribble and | |
2129 | * finds struct CommandList and tries to aborts it | |
2130 | * Now we have aborted the wrong command. | |
2131 | * | |
d604f533 WS |
2132 | * Reset c->scsi_cmd here so that the abort or reset handler will know |
2133 | * this command has completed. Then, check to see if the handler is | |
a58e7e53 WS |
2134 | * waiting for this command, and, if so, wake it. |
2135 | */ | |
2136 | c->scsi_cmd = SCSI_CMD_IDLE; | |
d604f533 | 2137 | mb(); /* Declare command idle before checking for pending events. */ |
a58e7e53 | 2138 | if (c->abort_pending) { |
d604f533 | 2139 | do_wake = true; |
a58e7e53 | 2140 | c->abort_pending = false; |
a58e7e53 | 2141 | } |
d604f533 WS |
2142 | if (c->reset_pending) { |
2143 | unsigned long flags; | |
2144 | struct hpsa_scsi_dev_t *dev; | |
2145 | ||
2146 | /* | |
2147 | * There appears to be a reset pending; lock the lock and | |
2148 | * reconfirm. If so, then decrement the count of outstanding | |
2149 | * commands and wake the reset command if this is the last one. | |
2150 | */ | |
2151 | spin_lock_irqsave(&h->lock, flags); | |
2152 | dev = c->reset_pending; /* Re-fetch under the lock. */ | |
2153 | if (dev && atomic_dec_and_test(&dev->reset_cmds_out)) | |
2154 | do_wake = true; | |
2155 | c->reset_pending = NULL; | |
2156 | spin_unlock_irqrestore(&h->lock, flags); | |
2157 | } | |
2158 | ||
2159 | if (do_wake) | |
2160 | wake_up_all(&h->event_sync_wait_queue); | |
a58e7e53 WS |
2161 | } |
2162 | ||
73153fe5 WS |
2163 | static void hpsa_cmd_resolve_and_free(struct ctlr_info *h, |
2164 | struct CommandList *c) | |
2165 | { | |
2166 | hpsa_cmd_resolve_events(h, c); | |
2167 | cmd_tagged_free(h, c); | |
2168 | } | |
2169 | ||
8a0ff92c WS |
2170 | static void hpsa_cmd_free_and_done(struct ctlr_info *h, |
2171 | struct CommandList *c, struct scsi_cmnd *cmd) | |
2172 | { | |
73153fe5 | 2173 | hpsa_cmd_resolve_and_free(h, c); |
8a0ff92c WS |
2174 | cmd->scsi_done(cmd); |
2175 | } | |
2176 | ||
2177 | static void hpsa_retry_cmd(struct ctlr_info *h, struct CommandList *c) | |
2178 | { | |
2179 | INIT_WORK(&c->work, hpsa_command_resubmit_worker); | |
2180 | queue_work_on(raw_smp_processor_id(), h->resubmit_wq, &c->work); | |
2181 | } | |
2182 | ||
a58e7e53 WS |
2183 | static void hpsa_set_scsi_cmd_aborted(struct scsi_cmnd *cmd) |
2184 | { | |
2185 | cmd->result = DID_ABORT << 16; | |
2186 | } | |
2187 | ||
2188 | static void hpsa_cmd_abort_and_free(struct ctlr_info *h, struct CommandList *c, | |
2189 | struct scsi_cmnd *cmd) | |
2190 | { | |
2191 | hpsa_set_scsi_cmd_aborted(cmd); | |
2192 | dev_warn(&h->pdev->dev, "CDB %16phN was aborted with status 0x%x\n", | |
2193 | c->Request.CDB, c->err_info->ScsiStatus); | |
73153fe5 | 2194 | hpsa_cmd_resolve_and_free(h, c); |
a58e7e53 WS |
2195 | } |
2196 | ||
c349775e ST |
2197 | static void process_ioaccel2_completion(struct ctlr_info *h, |
2198 | struct CommandList *c, struct scsi_cmnd *cmd, | |
2199 | struct hpsa_scsi_dev_t *dev) | |
2200 | { | |
2201 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
2202 | ||
2203 | /* check for good status */ | |
2204 | if (likely(c2->error_data.serv_response == 0 && | |
8a0ff92c WS |
2205 | c2->error_data.status == 0)) |
2206 | return hpsa_cmd_free_and_done(h, c, cmd); | |
c349775e | 2207 | |
8a0ff92c WS |
2208 | /* |
2209 | * Any RAID offload error results in retry which will use | |
c349775e ST |
2210 | * the normal I/O path so the controller can handle whatever's |
2211 | * wrong. | |
2212 | */ | |
2213 | if (is_logical_dev_addr_mode(dev->scsi3addr) && | |
2214 | c2->error_data.serv_response == | |
2215 | IOACCEL2_SERV_RESPONSE_FAILURE) { | |
080ef1cc DB |
2216 | if (c2->error_data.status == |
2217 | IOACCEL2_STATUS_SR_IOACCEL_DISABLED) | |
2218 | dev->offload_enabled = 0; | |
8a0ff92c WS |
2219 | |
2220 | return hpsa_retry_cmd(h, c); | |
a09c1441 | 2221 | } |
080ef1cc DB |
2222 | |
2223 | if (handle_ioaccel_mode2_error(h, c, cmd, c2)) | |
8a0ff92c | 2224 | return hpsa_retry_cmd(h, c); |
080ef1cc | 2225 | |
8a0ff92c | 2226 | return hpsa_cmd_free_and_done(h, c, cmd); |
c349775e ST |
2227 | } |
2228 | ||
9437ac43 SC |
2229 | /* Returns 0 on success, < 0 otherwise. */ |
2230 | static int hpsa_evaluate_tmf_status(struct ctlr_info *h, | |
2231 | struct CommandList *cp) | |
2232 | { | |
2233 | u8 tmf_status = cp->err_info->ScsiStatus; | |
2234 | ||
2235 | switch (tmf_status) { | |
2236 | case CISS_TMF_COMPLETE: | |
2237 | /* | |
2238 | * CISS_TMF_COMPLETE never happens, instead, | |
2239 | * ei->CommandStatus == 0 for this case. | |
2240 | */ | |
2241 | case CISS_TMF_SUCCESS: | |
2242 | return 0; | |
2243 | case CISS_TMF_INVALID_FRAME: | |
2244 | case CISS_TMF_NOT_SUPPORTED: | |
2245 | case CISS_TMF_FAILED: | |
2246 | case CISS_TMF_WRONG_LUN: | |
2247 | case CISS_TMF_OVERLAPPED_TAG: | |
2248 | break; | |
2249 | default: | |
2250 | dev_warn(&h->pdev->dev, "Unknown TMF status: 0x%02x\n", | |
2251 | tmf_status); | |
2252 | break; | |
2253 | } | |
2254 | return -tmf_status; | |
2255 | } | |
2256 | ||
1fb011fb | 2257 | static void complete_scsi_command(struct CommandList *cp) |
edd16368 SC |
2258 | { |
2259 | struct scsi_cmnd *cmd; | |
2260 | struct ctlr_info *h; | |
2261 | struct ErrorInfo *ei; | |
283b4a9b | 2262 | struct hpsa_scsi_dev_t *dev; |
d9a729f3 | 2263 | struct io_accel2_cmd *c2; |
edd16368 | 2264 | |
9437ac43 SC |
2265 | u8 sense_key; |
2266 | u8 asc; /* additional sense code */ | |
2267 | u8 ascq; /* additional sense code qualifier */ | |
db111e18 | 2268 | unsigned long sense_data_size; |
edd16368 SC |
2269 | |
2270 | ei = cp->err_info; | |
7fa3030c | 2271 | cmd = cp->scsi_cmd; |
edd16368 | 2272 | h = cp->h; |
283b4a9b | 2273 | dev = cmd->device->hostdata; |
d9a729f3 | 2274 | c2 = &h->ioaccel2_cmd_pool[cp->cmdindex]; |
edd16368 SC |
2275 | |
2276 | scsi_dma_unmap(cmd); /* undo the DMA mappings */ | |
e1f7de0c | 2277 | if ((cp->cmd_type == CMD_SCSI) && |
2b08b3e9 | 2278 | (le16_to_cpu(cp->Header.SGTotal) > h->max_cmd_sg_entries)) |
33a2ffce | 2279 | hpsa_unmap_sg_chain_block(h, cp); |
edd16368 | 2280 | |
d9a729f3 WS |
2281 | if ((cp->cmd_type == CMD_IOACCEL2) && |
2282 | (c2->sg[0].chain_indicator == IOACCEL2_CHAIN)) | |
2283 | hpsa_unmap_ioaccel2_sg_chain_block(h, c2); | |
2284 | ||
edd16368 SC |
2285 | cmd->result = (DID_OK << 16); /* host byte */ |
2286 | cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ | |
c349775e | 2287 | |
03383736 DB |
2288 | if (cp->cmd_type == CMD_IOACCEL2 || cp->cmd_type == CMD_IOACCEL1) |
2289 | atomic_dec(&cp->phys_disk->ioaccel_cmds_out); | |
2290 | ||
25163bd5 WS |
2291 | /* |
2292 | * We check for lockup status here as it may be set for | |
2293 | * CMD_SCSI, CMD_IOACCEL1 and CMD_IOACCEL2 commands by | |
2294 | * fail_all_oustanding_cmds() | |
2295 | */ | |
2296 | if (unlikely(ei->CommandStatus == CMD_CTLR_LOCKUP)) { | |
2297 | /* DID_NO_CONNECT will prevent a retry */ | |
2298 | cmd->result = DID_NO_CONNECT << 16; | |
8a0ff92c | 2299 | return hpsa_cmd_free_and_done(h, cp, cmd); |
25163bd5 WS |
2300 | } |
2301 | ||
d604f533 WS |
2302 | if ((unlikely(hpsa_is_pending_event(cp)))) { |
2303 | if (cp->reset_pending) | |
2304 | return hpsa_cmd_resolve_and_free(h, cp); | |
2305 | if (cp->abort_pending) | |
2306 | return hpsa_cmd_abort_and_free(h, cp, cmd); | |
2307 | } | |
2308 | ||
c349775e ST |
2309 | if (cp->cmd_type == CMD_IOACCEL2) |
2310 | return process_ioaccel2_completion(h, cp, cmd, dev); | |
2311 | ||
6aa4c361 | 2312 | scsi_set_resid(cmd, ei->ResidualCnt); |
8a0ff92c WS |
2313 | if (ei->CommandStatus == 0) |
2314 | return hpsa_cmd_free_and_done(h, cp, cmd); | |
6aa4c361 | 2315 | |
e1f7de0c MG |
2316 | /* For I/O accelerator commands, copy over some fields to the normal |
2317 | * CISS header used below for error handling. | |
2318 | */ | |
2319 | if (cp->cmd_type == CMD_IOACCEL1) { | |
2320 | struct io_accel1_cmd *c = &h->ioaccel_cmd_pool[cp->cmdindex]; | |
2b08b3e9 DB |
2321 | cp->Header.SGList = scsi_sg_count(cmd); |
2322 | cp->Header.SGTotal = cpu_to_le16(cp->Header.SGList); | |
2323 | cp->Request.CDBLen = le16_to_cpu(c->io_flags) & | |
2324 | IOACCEL1_IOFLAGS_CDBLEN_MASK; | |
50a0decf | 2325 | cp->Header.tag = c->tag; |
e1f7de0c MG |
2326 | memcpy(cp->Header.LUN.LunAddrBytes, c->CISS_LUN, 8); |
2327 | memcpy(cp->Request.CDB, c->CDB, cp->Request.CDBLen); | |
283b4a9b SC |
2328 | |
2329 | /* Any RAID offload error results in retry which will use | |
2330 | * the normal I/O path so the controller can handle whatever's | |
2331 | * wrong. | |
2332 | */ | |
2333 | if (is_logical_dev_addr_mode(dev->scsi3addr)) { | |
2334 | if (ei->CommandStatus == CMD_IOACCEL_DISABLED) | |
2335 | dev->offload_enabled = 0; | |
d604f533 | 2336 | return hpsa_retry_cmd(h, cp); |
283b4a9b | 2337 | } |
e1f7de0c MG |
2338 | } |
2339 | ||
edd16368 SC |
2340 | /* an error has occurred */ |
2341 | switch (ei->CommandStatus) { | |
2342 | ||
2343 | case CMD_TARGET_STATUS: | |
9437ac43 SC |
2344 | cmd->result |= ei->ScsiStatus; |
2345 | /* copy the sense data */ | |
2346 | if (SCSI_SENSE_BUFFERSIZE < sizeof(ei->SenseInfo)) | |
2347 | sense_data_size = SCSI_SENSE_BUFFERSIZE; | |
2348 | else | |
2349 | sense_data_size = sizeof(ei->SenseInfo); | |
2350 | if (ei->SenseLen < sense_data_size) | |
2351 | sense_data_size = ei->SenseLen; | |
2352 | memcpy(cmd->sense_buffer, ei->SenseInfo, sense_data_size); | |
2353 | if (ei->ScsiStatus) | |
2354 | decode_sense_data(ei->SenseInfo, sense_data_size, | |
2355 | &sense_key, &asc, &ascq); | |
edd16368 | 2356 | if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION) { |
1d3b3609 | 2357 | if (sense_key == ABORTED_COMMAND) { |
2e311fba | 2358 | cmd->result |= DID_SOFT_ERROR << 16; |
1d3b3609 MG |
2359 | break; |
2360 | } | |
edd16368 SC |
2361 | break; |
2362 | } | |
edd16368 SC |
2363 | /* Problem was not a check condition |
2364 | * Pass it up to the upper layers... | |
2365 | */ | |
2366 | if (ei->ScsiStatus) { | |
2367 | dev_warn(&h->pdev->dev, "cp %p has status 0x%x " | |
2368 | "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, " | |
2369 | "Returning result: 0x%x\n", | |
2370 | cp, ei->ScsiStatus, | |
2371 | sense_key, asc, ascq, | |
2372 | cmd->result); | |
2373 | } else { /* scsi status is zero??? How??? */ | |
2374 | dev_warn(&h->pdev->dev, "cp %p SCSI status was 0. " | |
2375 | "Returning no connection.\n", cp), | |
2376 | ||
2377 | /* Ordinarily, this case should never happen, | |
2378 | * but there is a bug in some released firmware | |
2379 | * revisions that allows it to happen if, for | |
2380 | * example, a 4100 backplane loses power and | |
2381 | * the tape drive is in it. We assume that | |
2382 | * it's a fatal error of some kind because we | |
2383 | * can't show that it wasn't. We will make it | |
2384 | * look like selection timeout since that is | |
2385 | * the most common reason for this to occur, | |
2386 | * and it's severe enough. | |
2387 | */ | |
2388 | ||
2389 | cmd->result = DID_NO_CONNECT << 16; | |
2390 | } | |
2391 | break; | |
2392 | ||
2393 | case CMD_DATA_UNDERRUN: /* let mid layer handle it. */ | |
2394 | break; | |
2395 | case CMD_DATA_OVERRUN: | |
f42e81e1 SC |
2396 | dev_warn(&h->pdev->dev, |
2397 | "CDB %16phN data overrun\n", cp->Request.CDB); | |
edd16368 SC |
2398 | break; |
2399 | case CMD_INVALID: { | |
2400 | /* print_bytes(cp, sizeof(*cp), 1, 0); | |
2401 | print_cmd(cp); */ | |
2402 | /* We get CMD_INVALID if you address a non-existent device | |
2403 | * instead of a selection timeout (no response). You will | |
2404 | * see this if you yank out a drive, then try to access it. | |
2405 | * This is kind of a shame because it means that any other | |
2406 | * CMD_INVALID (e.g. driver bug) will get interpreted as a | |
2407 | * missing target. */ | |
2408 | cmd->result = DID_NO_CONNECT << 16; | |
2409 | } | |
2410 | break; | |
2411 | case CMD_PROTOCOL_ERR: | |
256d0eaa | 2412 | cmd->result = DID_ERROR << 16; |
f42e81e1 SC |
2413 | dev_warn(&h->pdev->dev, "CDB %16phN : protocol error\n", |
2414 | cp->Request.CDB); | |
edd16368 SC |
2415 | break; |
2416 | case CMD_HARDWARE_ERR: | |
2417 | cmd->result = DID_ERROR << 16; | |
f42e81e1 SC |
2418 | dev_warn(&h->pdev->dev, "CDB %16phN : hardware error\n", |
2419 | cp->Request.CDB); | |
edd16368 SC |
2420 | break; |
2421 | case CMD_CONNECTION_LOST: | |
2422 | cmd->result = DID_ERROR << 16; | |
f42e81e1 SC |
2423 | dev_warn(&h->pdev->dev, "CDB %16phN : connection lost\n", |
2424 | cp->Request.CDB); | |
edd16368 SC |
2425 | break; |
2426 | case CMD_ABORTED: | |
a58e7e53 WS |
2427 | /* Return now to avoid calling scsi_done(). */ |
2428 | return hpsa_cmd_abort_and_free(h, cp, cmd); | |
edd16368 SC |
2429 | case CMD_ABORT_FAILED: |
2430 | cmd->result = DID_ERROR << 16; | |
f42e81e1 SC |
2431 | dev_warn(&h->pdev->dev, "CDB %16phN : abort failed\n", |
2432 | cp->Request.CDB); | |
edd16368 SC |
2433 | break; |
2434 | case CMD_UNSOLICITED_ABORT: | |
f6e76055 | 2435 | cmd->result = DID_SOFT_ERROR << 16; /* retry the command */ |
f42e81e1 SC |
2436 | dev_warn(&h->pdev->dev, "CDB %16phN : unsolicited abort\n", |
2437 | cp->Request.CDB); | |
edd16368 SC |
2438 | break; |
2439 | case CMD_TIMEOUT: | |
2440 | cmd->result = DID_TIME_OUT << 16; | |
f42e81e1 SC |
2441 | dev_warn(&h->pdev->dev, "CDB %16phN timed out\n", |
2442 | cp->Request.CDB); | |
edd16368 | 2443 | break; |
1d5e2ed0 SC |
2444 | case CMD_UNABORTABLE: |
2445 | cmd->result = DID_ERROR << 16; | |
2446 | dev_warn(&h->pdev->dev, "Command unabortable\n"); | |
2447 | break; | |
9437ac43 SC |
2448 | case CMD_TMF_STATUS: |
2449 | if (hpsa_evaluate_tmf_status(h, cp)) /* TMF failed? */ | |
2450 | cmd->result = DID_ERROR << 16; | |
2451 | break; | |
283b4a9b SC |
2452 | case CMD_IOACCEL_DISABLED: |
2453 | /* This only handles the direct pass-through case since RAID | |
2454 | * offload is handled above. Just attempt a retry. | |
2455 | */ | |
2456 | cmd->result = DID_SOFT_ERROR << 16; | |
2457 | dev_warn(&h->pdev->dev, | |
2458 | "cp %p had HP SSD Smart Path error\n", cp); | |
2459 | break; | |
edd16368 SC |
2460 | default: |
2461 | cmd->result = DID_ERROR << 16; | |
2462 | dev_warn(&h->pdev->dev, "cp %p returned unknown status %x\n", | |
2463 | cp, ei->CommandStatus); | |
2464 | } | |
8a0ff92c WS |
2465 | |
2466 | return hpsa_cmd_free_and_done(h, cp, cmd); | |
edd16368 SC |
2467 | } |
2468 | ||
edd16368 SC |
2469 | static void hpsa_pci_unmap(struct pci_dev *pdev, |
2470 | struct CommandList *c, int sg_used, int data_direction) | |
2471 | { | |
2472 | int i; | |
edd16368 | 2473 | |
50a0decf SC |
2474 | for (i = 0; i < sg_used; i++) |
2475 | pci_unmap_single(pdev, (dma_addr_t) le64_to_cpu(c->SG[i].Addr), | |
2476 | le32_to_cpu(c->SG[i].Len), | |
2477 | data_direction); | |
edd16368 SC |
2478 | } |
2479 | ||
a2dac136 | 2480 | static int hpsa_map_one(struct pci_dev *pdev, |
edd16368 SC |
2481 | struct CommandList *cp, |
2482 | unsigned char *buf, | |
2483 | size_t buflen, | |
2484 | int data_direction) | |
2485 | { | |
01a02ffc | 2486 | u64 addr64; |
edd16368 SC |
2487 | |
2488 | if (buflen == 0 || data_direction == PCI_DMA_NONE) { | |
2489 | cp->Header.SGList = 0; | |
50a0decf | 2490 | cp->Header.SGTotal = cpu_to_le16(0); |
a2dac136 | 2491 | return 0; |
edd16368 SC |
2492 | } |
2493 | ||
50a0decf | 2494 | addr64 = pci_map_single(pdev, buf, buflen, data_direction); |
eceaae18 | 2495 | if (dma_mapping_error(&pdev->dev, addr64)) { |
a2dac136 | 2496 | /* Prevent subsequent unmap of something never mapped */ |
eceaae18 | 2497 | cp->Header.SGList = 0; |
50a0decf | 2498 | cp->Header.SGTotal = cpu_to_le16(0); |
a2dac136 | 2499 | return -1; |
eceaae18 | 2500 | } |
50a0decf SC |
2501 | cp->SG[0].Addr = cpu_to_le64(addr64); |
2502 | cp->SG[0].Len = cpu_to_le32(buflen); | |
2503 | cp->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* we are not chaining */ | |
2504 | cp->Header.SGList = 1; /* no. SGs contig in this cmd */ | |
2505 | cp->Header.SGTotal = cpu_to_le16(1); /* total sgs in cmd list */ | |
a2dac136 | 2506 | return 0; |
edd16368 SC |
2507 | } |
2508 | ||
25163bd5 WS |
2509 | #define NO_TIMEOUT ((unsigned long) -1) |
2510 | #define DEFAULT_TIMEOUT 30000 /* milliseconds */ | |
2511 | static int hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h, | |
2512 | struct CommandList *c, int reply_queue, unsigned long timeout_msecs) | |
edd16368 SC |
2513 | { |
2514 | DECLARE_COMPLETION_ONSTACK(wait); | |
2515 | ||
2516 | c->waiting = &wait; | |
25163bd5 WS |
2517 | __enqueue_cmd_and_start_io(h, c, reply_queue); |
2518 | if (timeout_msecs == NO_TIMEOUT) { | |
2519 | /* TODO: get rid of this no-timeout thing */ | |
2520 | wait_for_completion_io(&wait); | |
2521 | return IO_OK; | |
2522 | } | |
2523 | if (!wait_for_completion_io_timeout(&wait, | |
2524 | msecs_to_jiffies(timeout_msecs))) { | |
2525 | dev_warn(&h->pdev->dev, "Command timed out.\n"); | |
2526 | return -ETIMEDOUT; | |
2527 | } | |
2528 | return IO_OK; | |
2529 | } | |
2530 | ||
2531 | static int hpsa_scsi_do_simple_cmd(struct ctlr_info *h, struct CommandList *c, | |
2532 | int reply_queue, unsigned long timeout_msecs) | |
2533 | { | |
2534 | if (unlikely(lockup_detected(h))) { | |
2535 | c->err_info->CommandStatus = CMD_CTLR_LOCKUP; | |
2536 | return IO_OK; | |
2537 | } | |
2538 | return hpsa_scsi_do_simple_cmd_core(h, c, reply_queue, timeout_msecs); | |
edd16368 SC |
2539 | } |
2540 | ||
094963da SC |
2541 | static u32 lockup_detected(struct ctlr_info *h) |
2542 | { | |
2543 | int cpu; | |
2544 | u32 rc, *lockup_detected; | |
2545 | ||
2546 | cpu = get_cpu(); | |
2547 | lockup_detected = per_cpu_ptr(h->lockup_detected, cpu); | |
2548 | rc = *lockup_detected; | |
2549 | put_cpu(); | |
2550 | return rc; | |
2551 | } | |
2552 | ||
9c2fc160 | 2553 | #define MAX_DRIVER_CMD_RETRIES 25 |
25163bd5 WS |
2554 | static int hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h, |
2555 | struct CommandList *c, int data_direction, unsigned long timeout_msecs) | |
edd16368 | 2556 | { |
9c2fc160 | 2557 | int backoff_time = 10, retry_count = 0; |
25163bd5 | 2558 | int rc; |
edd16368 SC |
2559 | |
2560 | do { | |
7630abd0 | 2561 | memset(c->err_info, 0, sizeof(*c->err_info)); |
25163bd5 WS |
2562 | rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, |
2563 | timeout_msecs); | |
2564 | if (rc) | |
2565 | break; | |
edd16368 | 2566 | retry_count++; |
9c2fc160 SC |
2567 | if (retry_count > 3) { |
2568 | msleep(backoff_time); | |
2569 | if (backoff_time < 1000) | |
2570 | backoff_time *= 2; | |
2571 | } | |
852af20a | 2572 | } while ((check_for_unit_attention(h, c) || |
9c2fc160 SC |
2573 | check_for_busy(h, c)) && |
2574 | retry_count <= MAX_DRIVER_CMD_RETRIES); | |
edd16368 | 2575 | hpsa_pci_unmap(h->pdev, c, 1, data_direction); |
25163bd5 WS |
2576 | if (retry_count > MAX_DRIVER_CMD_RETRIES) |
2577 | rc = -EIO; | |
2578 | return rc; | |
edd16368 SC |
2579 | } |
2580 | ||
d1e8beac SC |
2581 | static void hpsa_print_cmd(struct ctlr_info *h, char *txt, |
2582 | struct CommandList *c) | |
edd16368 | 2583 | { |
d1e8beac SC |
2584 | const u8 *cdb = c->Request.CDB; |
2585 | const u8 *lun = c->Header.LUN.LunAddrBytes; | |
2586 | ||
2587 | dev_warn(&h->pdev->dev, "%s: LUN:%02x%02x%02x%02x%02x%02x%02x%02x" | |
2588 | " CDB:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
2589 | txt, lun[0], lun[1], lun[2], lun[3], | |
2590 | lun[4], lun[5], lun[6], lun[7], | |
2591 | cdb[0], cdb[1], cdb[2], cdb[3], | |
2592 | cdb[4], cdb[5], cdb[6], cdb[7], | |
2593 | cdb[8], cdb[9], cdb[10], cdb[11], | |
2594 | cdb[12], cdb[13], cdb[14], cdb[15]); | |
2595 | } | |
2596 | ||
2597 | static void hpsa_scsi_interpret_error(struct ctlr_info *h, | |
2598 | struct CommandList *cp) | |
2599 | { | |
2600 | const struct ErrorInfo *ei = cp->err_info; | |
edd16368 | 2601 | struct device *d = &cp->h->pdev->dev; |
9437ac43 SC |
2602 | u8 sense_key, asc, ascq; |
2603 | int sense_len; | |
edd16368 | 2604 | |
edd16368 SC |
2605 | switch (ei->CommandStatus) { |
2606 | case CMD_TARGET_STATUS: | |
9437ac43 SC |
2607 | if (ei->SenseLen > sizeof(ei->SenseInfo)) |
2608 | sense_len = sizeof(ei->SenseInfo); | |
2609 | else | |
2610 | sense_len = ei->SenseLen; | |
2611 | decode_sense_data(ei->SenseInfo, sense_len, | |
2612 | &sense_key, &asc, &ascq); | |
d1e8beac SC |
2613 | hpsa_print_cmd(h, "SCSI status", cp); |
2614 | if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION) | |
9437ac43 SC |
2615 | dev_warn(d, "SCSI Status = 02, Sense key = 0x%02x, ASC = 0x%02x, ASCQ = 0x%02x\n", |
2616 | sense_key, asc, ascq); | |
d1e8beac | 2617 | else |
9437ac43 | 2618 | dev_warn(d, "SCSI Status = 0x%02x\n", ei->ScsiStatus); |
edd16368 SC |
2619 | if (ei->ScsiStatus == 0) |
2620 | dev_warn(d, "SCSI status is abnormally zero. " | |
2621 | "(probably indicates selection timeout " | |
2622 | "reported incorrectly due to a known " | |
2623 | "firmware bug, circa July, 2001.)\n"); | |
2624 | break; | |
2625 | case CMD_DATA_UNDERRUN: /* let mid layer handle it. */ | |
edd16368 SC |
2626 | break; |
2627 | case CMD_DATA_OVERRUN: | |
d1e8beac | 2628 | hpsa_print_cmd(h, "overrun condition", cp); |
edd16368 SC |
2629 | break; |
2630 | case CMD_INVALID: { | |
2631 | /* controller unfortunately reports SCSI passthru's | |
2632 | * to non-existent targets as invalid commands. | |
2633 | */ | |
d1e8beac SC |
2634 | hpsa_print_cmd(h, "invalid command", cp); |
2635 | dev_warn(d, "probably means device no longer present\n"); | |
edd16368 SC |
2636 | } |
2637 | break; | |
2638 | case CMD_PROTOCOL_ERR: | |
d1e8beac | 2639 | hpsa_print_cmd(h, "protocol error", cp); |
edd16368 SC |
2640 | break; |
2641 | case CMD_HARDWARE_ERR: | |
d1e8beac | 2642 | hpsa_print_cmd(h, "hardware error", cp); |
edd16368 SC |
2643 | break; |
2644 | case CMD_CONNECTION_LOST: | |
d1e8beac | 2645 | hpsa_print_cmd(h, "connection lost", cp); |
edd16368 SC |
2646 | break; |
2647 | case CMD_ABORTED: | |
d1e8beac | 2648 | hpsa_print_cmd(h, "aborted", cp); |
edd16368 SC |
2649 | break; |
2650 | case CMD_ABORT_FAILED: | |
d1e8beac | 2651 | hpsa_print_cmd(h, "abort failed", cp); |
edd16368 SC |
2652 | break; |
2653 | case CMD_UNSOLICITED_ABORT: | |
d1e8beac | 2654 | hpsa_print_cmd(h, "unsolicited abort", cp); |
edd16368 SC |
2655 | break; |
2656 | case CMD_TIMEOUT: | |
d1e8beac | 2657 | hpsa_print_cmd(h, "timed out", cp); |
edd16368 | 2658 | break; |
1d5e2ed0 | 2659 | case CMD_UNABORTABLE: |
d1e8beac | 2660 | hpsa_print_cmd(h, "unabortable", cp); |
1d5e2ed0 | 2661 | break; |
25163bd5 WS |
2662 | case CMD_CTLR_LOCKUP: |
2663 | hpsa_print_cmd(h, "controller lockup detected", cp); | |
2664 | break; | |
edd16368 | 2665 | default: |
d1e8beac SC |
2666 | hpsa_print_cmd(h, "unknown status", cp); |
2667 | dev_warn(d, "Unknown command status %x\n", | |
edd16368 SC |
2668 | ei->CommandStatus); |
2669 | } | |
2670 | } | |
2671 | ||
2672 | static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr, | |
b7bb24eb | 2673 | u16 page, unsigned char *buf, |
edd16368 SC |
2674 | unsigned char bufsize) |
2675 | { | |
2676 | int rc = IO_OK; | |
2677 | struct CommandList *c; | |
2678 | struct ErrorInfo *ei; | |
2679 | ||
45fcb86e | 2680 | c = cmd_alloc(h); |
edd16368 | 2681 | |
a2dac136 SC |
2682 | if (fill_cmd(c, HPSA_INQUIRY, h, buf, bufsize, |
2683 | page, scsi3addr, TYPE_CMD)) { | |
2684 | rc = -1; | |
2685 | goto out; | |
2686 | } | |
25163bd5 WS |
2687 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
2688 | PCI_DMA_FROMDEVICE, NO_TIMEOUT); | |
2689 | if (rc) | |
2690 | goto out; | |
edd16368 SC |
2691 | ei = c->err_info; |
2692 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
d1e8beac | 2693 | hpsa_scsi_interpret_error(h, c); |
edd16368 SC |
2694 | rc = -1; |
2695 | } | |
a2dac136 | 2696 | out: |
45fcb86e | 2697 | cmd_free(h, c); |
edd16368 SC |
2698 | return rc; |
2699 | } | |
2700 | ||
bf711ac6 | 2701 | static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr, |
25163bd5 | 2702 | u8 reset_type, int reply_queue) |
edd16368 SC |
2703 | { |
2704 | int rc = IO_OK; | |
2705 | struct CommandList *c; | |
2706 | struct ErrorInfo *ei; | |
2707 | ||
45fcb86e | 2708 | c = cmd_alloc(h); |
edd16368 | 2709 | |
edd16368 | 2710 | |
a2dac136 | 2711 | /* fill_cmd can't fail here, no data buffer to map. */ |
bf711ac6 ST |
2712 | (void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0, |
2713 | scsi3addr, TYPE_MSG); | |
2714 | c->Request.CDB[1] = reset_type; /* fill_cmd defaults to LUN reset */ | |
25163bd5 WS |
2715 | rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT); |
2716 | if (rc) { | |
2717 | dev_warn(&h->pdev->dev, "Failed to send reset command\n"); | |
2718 | goto out; | |
2719 | } | |
edd16368 SC |
2720 | /* no unmap needed here because no data xfer. */ |
2721 | ||
2722 | ei = c->err_info; | |
2723 | if (ei->CommandStatus != 0) { | |
d1e8beac | 2724 | hpsa_scsi_interpret_error(h, c); |
edd16368 SC |
2725 | rc = -1; |
2726 | } | |
25163bd5 | 2727 | out: |
45fcb86e | 2728 | cmd_free(h, c); |
edd16368 SC |
2729 | return rc; |
2730 | } | |
2731 | ||
d604f533 WS |
2732 | static bool hpsa_cmd_dev_match(struct ctlr_info *h, struct CommandList *c, |
2733 | struct hpsa_scsi_dev_t *dev, | |
2734 | unsigned char *scsi3addr) | |
2735 | { | |
2736 | int i; | |
2737 | bool match = false; | |
2738 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
2739 | struct hpsa_tmf_struct *ac = (struct hpsa_tmf_struct *) c2; | |
2740 | ||
2741 | if (hpsa_is_cmd_idle(c)) | |
2742 | return false; | |
2743 | ||
2744 | switch (c->cmd_type) { | |
2745 | case CMD_SCSI: | |
2746 | case CMD_IOCTL_PEND: | |
2747 | match = !memcmp(scsi3addr, &c->Header.LUN.LunAddrBytes, | |
2748 | sizeof(c->Header.LUN.LunAddrBytes)); | |
2749 | break; | |
2750 | ||
2751 | case CMD_IOACCEL1: | |
2752 | case CMD_IOACCEL2: | |
2753 | if (c->phys_disk == dev) { | |
2754 | /* HBA mode match */ | |
2755 | match = true; | |
2756 | } else { | |
2757 | /* Possible RAID mode -- check each phys dev. */ | |
2758 | /* FIXME: Do we need to take out a lock here? If | |
2759 | * so, we could just call hpsa_get_pdisk_of_ioaccel2() | |
2760 | * instead. */ | |
2761 | for (i = 0; i < dev->nphysical_disks && !match; i++) { | |
2762 | /* FIXME: an alternate test might be | |
2763 | * | |
2764 | * match = dev->phys_disk[i]->ioaccel_handle | |
2765 | * == c2->scsi_nexus; */ | |
2766 | match = dev->phys_disk[i] == c->phys_disk; | |
2767 | } | |
2768 | } | |
2769 | break; | |
2770 | ||
2771 | case IOACCEL2_TMF: | |
2772 | for (i = 0; i < dev->nphysical_disks && !match; i++) { | |
2773 | match = dev->phys_disk[i]->ioaccel_handle == | |
2774 | le32_to_cpu(ac->it_nexus); | |
2775 | } | |
2776 | break; | |
2777 | ||
2778 | case 0: /* The command is in the middle of being initialized. */ | |
2779 | match = false; | |
2780 | break; | |
2781 | ||
2782 | default: | |
2783 | dev_err(&h->pdev->dev, "unexpected cmd_type: %d\n", | |
2784 | c->cmd_type); | |
2785 | BUG(); | |
2786 | } | |
2787 | ||
2788 | return match; | |
2789 | } | |
2790 | ||
2791 | static int hpsa_do_reset(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev, | |
2792 | unsigned char *scsi3addr, u8 reset_type, int reply_queue) | |
2793 | { | |
2794 | int i; | |
2795 | int rc = 0; | |
2796 | ||
2797 | /* We can really only handle one reset at a time */ | |
2798 | if (mutex_lock_interruptible(&h->reset_mutex) == -EINTR) { | |
2799 | dev_warn(&h->pdev->dev, "concurrent reset wait interrupted.\n"); | |
2800 | return -EINTR; | |
2801 | } | |
2802 | ||
2803 | BUG_ON(atomic_read(&dev->reset_cmds_out) != 0); | |
2804 | ||
2805 | for (i = 0; i < h->nr_cmds; i++) { | |
2806 | struct CommandList *c = h->cmd_pool + i; | |
2807 | int refcount = atomic_inc_return(&c->refcount); | |
2808 | ||
2809 | if (refcount > 1 && hpsa_cmd_dev_match(h, c, dev, scsi3addr)) { | |
2810 | unsigned long flags; | |
2811 | ||
2812 | /* | |
2813 | * Mark the target command as having a reset pending, | |
2814 | * then lock a lock so that the command cannot complete | |
2815 | * while we're considering it. If the command is not | |
2816 | * idle then count it; otherwise revoke the event. | |
2817 | */ | |
2818 | c->reset_pending = dev; | |
2819 | spin_lock_irqsave(&h->lock, flags); /* Implied MB */ | |
2820 | if (!hpsa_is_cmd_idle(c)) | |
2821 | atomic_inc(&dev->reset_cmds_out); | |
2822 | else | |
2823 | c->reset_pending = NULL; | |
2824 | spin_unlock_irqrestore(&h->lock, flags); | |
2825 | } | |
2826 | ||
2827 | cmd_free(h, c); | |
2828 | } | |
2829 | ||
2830 | rc = hpsa_send_reset(h, scsi3addr, reset_type, reply_queue); | |
2831 | if (!rc) | |
2832 | wait_event(h->event_sync_wait_queue, | |
2833 | atomic_read(&dev->reset_cmds_out) == 0 || | |
2834 | lockup_detected(h)); | |
2835 | ||
2836 | if (unlikely(lockup_detected(h))) { | |
77678d3a DB |
2837 | dev_warn(&h->pdev->dev, |
2838 | "Controller lockup detected during reset wait\n"); | |
2839 | rc = -ENODEV; | |
2840 | } | |
d604f533 WS |
2841 | |
2842 | if (unlikely(rc)) | |
2843 | atomic_set(&dev->reset_cmds_out, 0); | |
2844 | ||
2845 | mutex_unlock(&h->reset_mutex); | |
2846 | return rc; | |
2847 | } | |
2848 | ||
edd16368 SC |
2849 | static void hpsa_get_raid_level(struct ctlr_info *h, |
2850 | unsigned char *scsi3addr, unsigned char *raid_level) | |
2851 | { | |
2852 | int rc; | |
2853 | unsigned char *buf; | |
2854 | ||
2855 | *raid_level = RAID_UNKNOWN; | |
2856 | buf = kzalloc(64, GFP_KERNEL); | |
2857 | if (!buf) | |
2858 | return; | |
b7bb24eb | 2859 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | 0xC1, buf, 64); |
edd16368 SC |
2860 | if (rc == 0) |
2861 | *raid_level = buf[8]; | |
2862 | if (*raid_level > RAID_UNKNOWN) | |
2863 | *raid_level = RAID_UNKNOWN; | |
2864 | kfree(buf); | |
2865 | return; | |
2866 | } | |
2867 | ||
283b4a9b SC |
2868 | #define HPSA_MAP_DEBUG |
2869 | #ifdef HPSA_MAP_DEBUG | |
2870 | static void hpsa_debug_map_buff(struct ctlr_info *h, int rc, | |
2871 | struct raid_map_data *map_buff) | |
2872 | { | |
2873 | struct raid_map_disk_data *dd = &map_buff->data[0]; | |
2874 | int map, row, col; | |
2875 | u16 map_cnt, row_cnt, disks_per_row; | |
2876 | ||
2877 | if (rc != 0) | |
2878 | return; | |
2879 | ||
2ba8bfc8 SC |
2880 | /* Show details only if debugging has been activated. */ |
2881 | if (h->raid_offload_debug < 2) | |
2882 | return; | |
2883 | ||
283b4a9b SC |
2884 | dev_info(&h->pdev->dev, "structure_size = %u\n", |
2885 | le32_to_cpu(map_buff->structure_size)); | |
2886 | dev_info(&h->pdev->dev, "volume_blk_size = %u\n", | |
2887 | le32_to_cpu(map_buff->volume_blk_size)); | |
2888 | dev_info(&h->pdev->dev, "volume_blk_cnt = 0x%llx\n", | |
2889 | le64_to_cpu(map_buff->volume_blk_cnt)); | |
2890 | dev_info(&h->pdev->dev, "physicalBlockShift = %u\n", | |
2891 | map_buff->phys_blk_shift); | |
2892 | dev_info(&h->pdev->dev, "parity_rotation_shift = %u\n", | |
2893 | map_buff->parity_rotation_shift); | |
2894 | dev_info(&h->pdev->dev, "strip_size = %u\n", | |
2895 | le16_to_cpu(map_buff->strip_size)); | |
2896 | dev_info(&h->pdev->dev, "disk_starting_blk = 0x%llx\n", | |
2897 | le64_to_cpu(map_buff->disk_starting_blk)); | |
2898 | dev_info(&h->pdev->dev, "disk_blk_cnt = 0x%llx\n", | |
2899 | le64_to_cpu(map_buff->disk_blk_cnt)); | |
2900 | dev_info(&h->pdev->dev, "data_disks_per_row = %u\n", | |
2901 | le16_to_cpu(map_buff->data_disks_per_row)); | |
2902 | dev_info(&h->pdev->dev, "metadata_disks_per_row = %u\n", | |
2903 | le16_to_cpu(map_buff->metadata_disks_per_row)); | |
2904 | dev_info(&h->pdev->dev, "row_cnt = %u\n", | |
2905 | le16_to_cpu(map_buff->row_cnt)); | |
2906 | dev_info(&h->pdev->dev, "layout_map_count = %u\n", | |
2907 | le16_to_cpu(map_buff->layout_map_count)); | |
2b08b3e9 | 2908 | dev_info(&h->pdev->dev, "flags = 0x%x\n", |
dd0e19f3 | 2909 | le16_to_cpu(map_buff->flags)); |
2b08b3e9 DB |
2910 | dev_info(&h->pdev->dev, "encrypytion = %s\n", |
2911 | le16_to_cpu(map_buff->flags) & | |
2912 | RAID_MAP_FLAG_ENCRYPT_ON ? "ON" : "OFF"); | |
dd0e19f3 ST |
2913 | dev_info(&h->pdev->dev, "dekindex = %u\n", |
2914 | le16_to_cpu(map_buff->dekindex)); | |
283b4a9b SC |
2915 | map_cnt = le16_to_cpu(map_buff->layout_map_count); |
2916 | for (map = 0; map < map_cnt; map++) { | |
2917 | dev_info(&h->pdev->dev, "Map%u:\n", map); | |
2918 | row_cnt = le16_to_cpu(map_buff->row_cnt); | |
2919 | for (row = 0; row < row_cnt; row++) { | |
2920 | dev_info(&h->pdev->dev, " Row%u:\n", row); | |
2921 | disks_per_row = | |
2922 | le16_to_cpu(map_buff->data_disks_per_row); | |
2923 | for (col = 0; col < disks_per_row; col++, dd++) | |
2924 | dev_info(&h->pdev->dev, | |
2925 | " D%02u: h=0x%04x xor=%u,%u\n", | |
2926 | col, dd->ioaccel_handle, | |
2927 | dd->xor_mult[0], dd->xor_mult[1]); | |
2928 | disks_per_row = | |
2929 | le16_to_cpu(map_buff->metadata_disks_per_row); | |
2930 | for (col = 0; col < disks_per_row; col++, dd++) | |
2931 | dev_info(&h->pdev->dev, | |
2932 | " M%02u: h=0x%04x xor=%u,%u\n", | |
2933 | col, dd->ioaccel_handle, | |
2934 | dd->xor_mult[0], dd->xor_mult[1]); | |
2935 | } | |
2936 | } | |
2937 | } | |
2938 | #else | |
2939 | static void hpsa_debug_map_buff(__attribute__((unused)) struct ctlr_info *h, | |
2940 | __attribute__((unused)) int rc, | |
2941 | __attribute__((unused)) struct raid_map_data *map_buff) | |
2942 | { | |
2943 | } | |
2944 | #endif | |
2945 | ||
2946 | static int hpsa_get_raid_map(struct ctlr_info *h, | |
2947 | unsigned char *scsi3addr, struct hpsa_scsi_dev_t *this_device) | |
2948 | { | |
2949 | int rc = 0; | |
2950 | struct CommandList *c; | |
2951 | struct ErrorInfo *ei; | |
2952 | ||
45fcb86e | 2953 | c = cmd_alloc(h); |
bf43caf3 | 2954 | |
283b4a9b SC |
2955 | if (fill_cmd(c, HPSA_GET_RAID_MAP, h, &this_device->raid_map, |
2956 | sizeof(this_device->raid_map), 0, | |
2957 | scsi3addr, TYPE_CMD)) { | |
2dd02d74 RE |
2958 | dev_warn(&h->pdev->dev, "hpsa_get_raid_map fill_cmd failed\n"); |
2959 | cmd_free(h, c); | |
2960 | return -1; | |
283b4a9b | 2961 | } |
25163bd5 WS |
2962 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
2963 | PCI_DMA_FROMDEVICE, NO_TIMEOUT); | |
2964 | if (rc) | |
2965 | goto out; | |
283b4a9b SC |
2966 | ei = c->err_info; |
2967 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
d1e8beac | 2968 | hpsa_scsi_interpret_error(h, c); |
25163bd5 WS |
2969 | rc = -1; |
2970 | goto out; | |
283b4a9b | 2971 | } |
45fcb86e | 2972 | cmd_free(h, c); |
283b4a9b SC |
2973 | |
2974 | /* @todo in the future, dynamically allocate RAID map memory */ | |
2975 | if (le32_to_cpu(this_device->raid_map.structure_size) > | |
2976 | sizeof(this_device->raid_map)) { | |
2977 | dev_warn(&h->pdev->dev, "RAID map size is too large!\n"); | |
2978 | rc = -1; | |
2979 | } | |
2980 | hpsa_debug_map_buff(h, rc, &this_device->raid_map); | |
2981 | return rc; | |
25163bd5 WS |
2982 | out: |
2983 | cmd_free(h, c); | |
2984 | return rc; | |
283b4a9b SC |
2985 | } |
2986 | ||
03383736 DB |
2987 | static int hpsa_bmic_id_physical_device(struct ctlr_info *h, |
2988 | unsigned char scsi3addr[], u16 bmic_device_index, | |
2989 | struct bmic_identify_physical_device *buf, size_t bufsize) | |
2990 | { | |
2991 | int rc = IO_OK; | |
2992 | struct CommandList *c; | |
2993 | struct ErrorInfo *ei; | |
2994 | ||
2995 | c = cmd_alloc(h); | |
2996 | rc = fill_cmd(c, BMIC_IDENTIFY_PHYSICAL_DEVICE, h, buf, bufsize, | |
2997 | 0, RAID_CTLR_LUNID, TYPE_CMD); | |
2998 | if (rc) | |
2999 | goto out; | |
3000 | ||
3001 | c->Request.CDB[2] = bmic_device_index & 0xff; | |
3002 | c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff; | |
3003 | ||
25163bd5 WS |
3004 | hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE, |
3005 | NO_TIMEOUT); | |
03383736 DB |
3006 | ei = c->err_info; |
3007 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
3008 | hpsa_scsi_interpret_error(h, c); | |
3009 | rc = -1; | |
3010 | } | |
3011 | out: | |
3012 | cmd_free(h, c); | |
3013 | return rc; | |
3014 | } | |
3015 | ||
1b70150a SC |
3016 | static int hpsa_vpd_page_supported(struct ctlr_info *h, |
3017 | unsigned char scsi3addr[], u8 page) | |
3018 | { | |
3019 | int rc; | |
3020 | int i; | |
3021 | int pages; | |
3022 | unsigned char *buf, bufsize; | |
3023 | ||
3024 | buf = kzalloc(256, GFP_KERNEL); | |
3025 | if (!buf) | |
3026 | return 0; | |
3027 | ||
3028 | /* Get the size of the page list first */ | |
3029 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, | |
3030 | VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES, | |
3031 | buf, HPSA_VPD_HEADER_SZ); | |
3032 | if (rc != 0) | |
3033 | goto exit_unsupported; | |
3034 | pages = buf[3]; | |
3035 | if ((pages + HPSA_VPD_HEADER_SZ) <= 255) | |
3036 | bufsize = pages + HPSA_VPD_HEADER_SZ; | |
3037 | else | |
3038 | bufsize = 255; | |
3039 | ||
3040 | /* Get the whole VPD page list */ | |
3041 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, | |
3042 | VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES, | |
3043 | buf, bufsize); | |
3044 | if (rc != 0) | |
3045 | goto exit_unsupported; | |
3046 | ||
3047 | pages = buf[3]; | |
3048 | for (i = 1; i <= pages; i++) | |
3049 | if (buf[3 + i] == page) | |
3050 | goto exit_supported; | |
3051 | exit_unsupported: | |
3052 | kfree(buf); | |
3053 | return 0; | |
3054 | exit_supported: | |
3055 | kfree(buf); | |
3056 | return 1; | |
3057 | } | |
3058 | ||
283b4a9b SC |
3059 | static void hpsa_get_ioaccel_status(struct ctlr_info *h, |
3060 | unsigned char *scsi3addr, struct hpsa_scsi_dev_t *this_device) | |
3061 | { | |
3062 | int rc; | |
3063 | unsigned char *buf; | |
3064 | u8 ioaccel_status; | |
3065 | ||
3066 | this_device->offload_config = 0; | |
3067 | this_device->offload_enabled = 0; | |
41ce4c35 | 3068 | this_device->offload_to_be_enabled = 0; |
283b4a9b SC |
3069 | |
3070 | buf = kzalloc(64, GFP_KERNEL); | |
3071 | if (!buf) | |
3072 | return; | |
1b70150a SC |
3073 | if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_IOACCEL_STATUS)) |
3074 | goto out; | |
283b4a9b | 3075 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, |
b7bb24eb | 3076 | VPD_PAGE | HPSA_VPD_LV_IOACCEL_STATUS, buf, 64); |
283b4a9b SC |
3077 | if (rc != 0) |
3078 | goto out; | |
3079 | ||
3080 | #define IOACCEL_STATUS_BYTE 4 | |
3081 | #define OFFLOAD_CONFIGURED_BIT 0x01 | |
3082 | #define OFFLOAD_ENABLED_BIT 0x02 | |
3083 | ioaccel_status = buf[IOACCEL_STATUS_BYTE]; | |
3084 | this_device->offload_config = | |
3085 | !!(ioaccel_status & OFFLOAD_CONFIGURED_BIT); | |
3086 | if (this_device->offload_config) { | |
3087 | this_device->offload_enabled = | |
3088 | !!(ioaccel_status & OFFLOAD_ENABLED_BIT); | |
3089 | if (hpsa_get_raid_map(h, scsi3addr, this_device)) | |
3090 | this_device->offload_enabled = 0; | |
3091 | } | |
41ce4c35 | 3092 | this_device->offload_to_be_enabled = this_device->offload_enabled; |
283b4a9b SC |
3093 | out: |
3094 | kfree(buf); | |
3095 | return; | |
3096 | } | |
3097 | ||
edd16368 SC |
3098 | /* Get the device id from inquiry page 0x83 */ |
3099 | static int hpsa_get_device_id(struct ctlr_info *h, unsigned char *scsi3addr, | |
3100 | unsigned char *device_id, int buflen) | |
3101 | { | |
3102 | int rc; | |
3103 | unsigned char *buf; | |
3104 | ||
3105 | if (buflen > 16) | |
3106 | buflen = 16; | |
3107 | buf = kzalloc(64, GFP_KERNEL); | |
3108 | if (!buf) | |
a84d794d | 3109 | return -ENOMEM; |
b7bb24eb | 3110 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | 0x83, buf, 64); |
edd16368 SC |
3111 | if (rc == 0) |
3112 | memcpy(device_id, &buf[8], buflen); | |
3113 | kfree(buf); | |
3114 | return rc != 0; | |
3115 | } | |
3116 | ||
3117 | static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical, | |
03383736 | 3118 | void *buf, int bufsize, |
edd16368 SC |
3119 | int extended_response) |
3120 | { | |
3121 | int rc = IO_OK; | |
3122 | struct CommandList *c; | |
3123 | unsigned char scsi3addr[8]; | |
3124 | struct ErrorInfo *ei; | |
3125 | ||
45fcb86e | 3126 | c = cmd_alloc(h); |
bf43caf3 | 3127 | |
e89c0ae7 SC |
3128 | /* address the controller */ |
3129 | memset(scsi3addr, 0, sizeof(scsi3addr)); | |
a2dac136 SC |
3130 | if (fill_cmd(c, logical ? HPSA_REPORT_LOG : HPSA_REPORT_PHYS, h, |
3131 | buf, bufsize, 0, scsi3addr, TYPE_CMD)) { | |
3132 | rc = -1; | |
3133 | goto out; | |
3134 | } | |
edd16368 SC |
3135 | if (extended_response) |
3136 | c->Request.CDB[1] = extended_response; | |
25163bd5 WS |
3137 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
3138 | PCI_DMA_FROMDEVICE, NO_TIMEOUT); | |
3139 | if (rc) | |
3140 | goto out; | |
edd16368 SC |
3141 | ei = c->err_info; |
3142 | if (ei->CommandStatus != 0 && | |
3143 | ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
d1e8beac | 3144 | hpsa_scsi_interpret_error(h, c); |
edd16368 | 3145 | rc = -1; |
283b4a9b | 3146 | } else { |
03383736 DB |
3147 | struct ReportLUNdata *rld = buf; |
3148 | ||
3149 | if (rld->extended_response_flag != extended_response) { | |
283b4a9b SC |
3150 | dev_err(&h->pdev->dev, |
3151 | "report luns requested format %u, got %u\n", | |
3152 | extended_response, | |
03383736 | 3153 | rld->extended_response_flag); |
283b4a9b SC |
3154 | rc = -1; |
3155 | } | |
edd16368 | 3156 | } |
a2dac136 | 3157 | out: |
45fcb86e | 3158 | cmd_free(h, c); |
edd16368 SC |
3159 | return rc; |
3160 | } | |
3161 | ||
3162 | static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h, | |
03383736 | 3163 | struct ReportExtendedLUNdata *buf, int bufsize) |
edd16368 | 3164 | { |
03383736 DB |
3165 | return hpsa_scsi_do_report_luns(h, 0, buf, bufsize, |
3166 | HPSA_REPORT_PHYS_EXTENDED); | |
edd16368 SC |
3167 | } |
3168 | ||
3169 | static inline int hpsa_scsi_do_report_log_luns(struct ctlr_info *h, | |
3170 | struct ReportLUNdata *buf, int bufsize) | |
3171 | { | |
3172 | return hpsa_scsi_do_report_luns(h, 1, buf, bufsize, 0); | |
3173 | } | |
3174 | ||
3175 | static inline void hpsa_set_bus_target_lun(struct hpsa_scsi_dev_t *device, | |
3176 | int bus, int target, int lun) | |
3177 | { | |
3178 | device->bus = bus; | |
3179 | device->target = target; | |
3180 | device->lun = lun; | |
3181 | } | |
3182 | ||
9846590e SC |
3183 | /* Use VPD inquiry to get details of volume status */ |
3184 | static int hpsa_get_volume_status(struct ctlr_info *h, | |
3185 | unsigned char scsi3addr[]) | |
3186 | { | |
3187 | int rc; | |
3188 | int status; | |
3189 | int size; | |
3190 | unsigned char *buf; | |
3191 | ||
3192 | buf = kzalloc(64, GFP_KERNEL); | |
3193 | if (!buf) | |
3194 | return HPSA_VPD_LV_STATUS_UNSUPPORTED; | |
3195 | ||
3196 | /* Does controller have VPD for logical volume status? */ | |
24a4b078 | 3197 | if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_STATUS)) |
9846590e | 3198 | goto exit_failed; |
9846590e SC |
3199 | |
3200 | /* Get the size of the VPD return buffer */ | |
3201 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | HPSA_VPD_LV_STATUS, | |
3202 | buf, HPSA_VPD_HEADER_SZ); | |
24a4b078 | 3203 | if (rc != 0) |
9846590e | 3204 | goto exit_failed; |
9846590e SC |
3205 | size = buf[3]; |
3206 | ||
3207 | /* Now get the whole VPD buffer */ | |
3208 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | HPSA_VPD_LV_STATUS, | |
3209 | buf, size + HPSA_VPD_HEADER_SZ); | |
24a4b078 | 3210 | if (rc != 0) |
9846590e | 3211 | goto exit_failed; |
9846590e SC |
3212 | status = buf[4]; /* status byte */ |
3213 | ||
3214 | kfree(buf); | |
3215 | return status; | |
3216 | exit_failed: | |
3217 | kfree(buf); | |
3218 | return HPSA_VPD_LV_STATUS_UNSUPPORTED; | |
3219 | } | |
3220 | ||
3221 | /* Determine offline status of a volume. | |
3222 | * Return either: | |
3223 | * 0 (not offline) | |
67955ba3 | 3224 | * 0xff (offline for unknown reasons) |
9846590e SC |
3225 | * # (integer code indicating one of several NOT READY states |
3226 | * describing why a volume is to be kept offline) | |
3227 | */ | |
67955ba3 | 3228 | static int hpsa_volume_offline(struct ctlr_info *h, |
9846590e SC |
3229 | unsigned char scsi3addr[]) |
3230 | { | |
3231 | struct CommandList *c; | |
9437ac43 SC |
3232 | unsigned char *sense; |
3233 | u8 sense_key, asc, ascq; | |
3234 | int sense_len; | |
25163bd5 | 3235 | int rc, ldstat = 0; |
9846590e SC |
3236 | u16 cmd_status; |
3237 | u8 scsi_status; | |
3238 | #define ASC_LUN_NOT_READY 0x04 | |
3239 | #define ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS 0x04 | |
3240 | #define ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ 0x02 | |
3241 | ||
3242 | c = cmd_alloc(h); | |
bf43caf3 | 3243 | |
9846590e | 3244 | (void) fill_cmd(c, TEST_UNIT_READY, h, NULL, 0, 0, scsi3addr, TYPE_CMD); |
25163bd5 WS |
3245 | rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); |
3246 | if (rc) { | |
3247 | cmd_free(h, c); | |
3248 | return 0; | |
3249 | } | |
9846590e | 3250 | sense = c->err_info->SenseInfo; |
9437ac43 SC |
3251 | if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo)) |
3252 | sense_len = sizeof(c->err_info->SenseInfo); | |
3253 | else | |
3254 | sense_len = c->err_info->SenseLen; | |
3255 | decode_sense_data(sense, sense_len, &sense_key, &asc, &ascq); | |
9846590e SC |
3256 | cmd_status = c->err_info->CommandStatus; |
3257 | scsi_status = c->err_info->ScsiStatus; | |
3258 | cmd_free(h, c); | |
3259 | /* Is the volume 'not ready'? */ | |
3260 | if (cmd_status != CMD_TARGET_STATUS || | |
3261 | scsi_status != SAM_STAT_CHECK_CONDITION || | |
3262 | sense_key != NOT_READY || | |
3263 | asc != ASC_LUN_NOT_READY) { | |
3264 | return 0; | |
3265 | } | |
3266 | ||
3267 | /* Determine the reason for not ready state */ | |
3268 | ldstat = hpsa_get_volume_status(h, scsi3addr); | |
3269 | ||
3270 | /* Keep volume offline in certain cases: */ | |
3271 | switch (ldstat) { | |
3272 | case HPSA_LV_UNDERGOING_ERASE: | |
5ca01204 | 3273 | case HPSA_LV_NOT_AVAILABLE: |
9846590e SC |
3274 | case HPSA_LV_UNDERGOING_RPI: |
3275 | case HPSA_LV_PENDING_RPI: | |
3276 | case HPSA_LV_ENCRYPTED_NO_KEY: | |
3277 | case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER: | |
3278 | case HPSA_LV_UNDERGOING_ENCRYPTION: | |
3279 | case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING: | |
3280 | case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: | |
3281 | return ldstat; | |
3282 | case HPSA_VPD_LV_STATUS_UNSUPPORTED: | |
3283 | /* If VPD status page isn't available, | |
3284 | * use ASC/ASCQ to determine state | |
3285 | */ | |
3286 | if ((ascq == ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS) || | |
3287 | (ascq == ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ)) | |
3288 | return ldstat; | |
3289 | break; | |
3290 | default: | |
3291 | break; | |
3292 | } | |
3293 | return 0; | |
3294 | } | |
3295 | ||
9b5c48c2 SC |
3296 | /* |
3297 | * Find out if a logical device supports aborts by simply trying one. | |
3298 | * Smart Array may claim not to support aborts on logical drives, but | |
3299 | * if a MSA2000 * is connected, the drives on that will be presented | |
3300 | * by the Smart Array as logical drives, and aborts may be sent to | |
3301 | * those devices successfully. So the simplest way to find out is | |
3302 | * to simply try an abort and see how the device responds. | |
3303 | */ | |
3304 | static int hpsa_device_supports_aborts(struct ctlr_info *h, | |
3305 | unsigned char *scsi3addr) | |
3306 | { | |
3307 | struct CommandList *c; | |
3308 | struct ErrorInfo *ei; | |
3309 | int rc = 0; | |
3310 | ||
3311 | u64 tag = (u64) -1; /* bogus tag */ | |
3312 | ||
3313 | /* Assume that physical devices support aborts */ | |
3314 | if (!is_logical_dev_addr_mode(scsi3addr)) | |
3315 | return 1; | |
3316 | ||
3317 | c = cmd_alloc(h); | |
bf43caf3 | 3318 | |
9b5c48c2 SC |
3319 | (void) fill_cmd(c, HPSA_ABORT_MSG, h, &tag, 0, 0, scsi3addr, TYPE_MSG); |
3320 | (void) hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); | |
3321 | /* no unmap needed here because no data xfer. */ | |
3322 | ei = c->err_info; | |
3323 | switch (ei->CommandStatus) { | |
3324 | case CMD_INVALID: | |
3325 | rc = 0; | |
3326 | break; | |
3327 | case CMD_UNABORTABLE: | |
3328 | case CMD_ABORT_FAILED: | |
3329 | rc = 1; | |
3330 | break; | |
9437ac43 SC |
3331 | case CMD_TMF_STATUS: |
3332 | rc = hpsa_evaluate_tmf_status(h, c); | |
3333 | break; | |
9b5c48c2 SC |
3334 | default: |
3335 | rc = 0; | |
3336 | break; | |
3337 | } | |
3338 | cmd_free(h, c); | |
3339 | return rc; | |
3340 | } | |
3341 | ||
edd16368 | 3342 | static int hpsa_update_device_info(struct ctlr_info *h, |
0b0e1d6c SC |
3343 | unsigned char scsi3addr[], struct hpsa_scsi_dev_t *this_device, |
3344 | unsigned char *is_OBDR_device) | |
edd16368 | 3345 | { |
0b0e1d6c SC |
3346 | |
3347 | #define OBDR_SIG_OFFSET 43 | |
3348 | #define OBDR_TAPE_SIG "$DR-10" | |
3349 | #define OBDR_SIG_LEN (sizeof(OBDR_TAPE_SIG) - 1) | |
3350 | #define OBDR_TAPE_INQ_SIZE (OBDR_SIG_OFFSET + OBDR_SIG_LEN) | |
3351 | ||
ea6d3bc3 | 3352 | unsigned char *inq_buff; |
0b0e1d6c | 3353 | unsigned char *obdr_sig; |
edd16368 | 3354 | |
ea6d3bc3 | 3355 | inq_buff = kzalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL); |
edd16368 SC |
3356 | if (!inq_buff) |
3357 | goto bail_out; | |
3358 | ||
edd16368 SC |
3359 | /* Do an inquiry to the device to see what it is. */ |
3360 | if (hpsa_scsi_do_inquiry(h, scsi3addr, 0, inq_buff, | |
3361 | (unsigned char) OBDR_TAPE_INQ_SIZE) != 0) { | |
3362 | /* Inquiry failed (msg printed already) */ | |
3363 | dev_err(&h->pdev->dev, | |
3364 | "hpsa_update_device_info: inquiry failed\n"); | |
3365 | goto bail_out; | |
3366 | } | |
3367 | ||
edd16368 SC |
3368 | this_device->devtype = (inq_buff[0] & 0x1f); |
3369 | memcpy(this_device->scsi3addr, scsi3addr, 8); | |
3370 | memcpy(this_device->vendor, &inq_buff[8], | |
3371 | sizeof(this_device->vendor)); | |
3372 | memcpy(this_device->model, &inq_buff[16], | |
3373 | sizeof(this_device->model)); | |
edd16368 SC |
3374 | memset(this_device->device_id, 0, |
3375 | sizeof(this_device->device_id)); | |
3376 | hpsa_get_device_id(h, scsi3addr, this_device->device_id, | |
3377 | sizeof(this_device->device_id)); | |
3378 | ||
3379 | if (this_device->devtype == TYPE_DISK && | |
283b4a9b | 3380 | is_logical_dev_addr_mode(scsi3addr)) { |
67955ba3 SC |
3381 | int volume_offline; |
3382 | ||
edd16368 | 3383 | hpsa_get_raid_level(h, scsi3addr, &this_device->raid_level); |
283b4a9b SC |
3384 | if (h->fw_support & MISC_FW_RAID_OFFLOAD_BASIC) |
3385 | hpsa_get_ioaccel_status(h, scsi3addr, this_device); | |
67955ba3 SC |
3386 | volume_offline = hpsa_volume_offline(h, scsi3addr); |
3387 | if (volume_offline < 0 || volume_offline > 0xff) | |
3388 | volume_offline = HPSA_VPD_LV_STATUS_UNSUPPORTED; | |
3389 | this_device->volume_offline = volume_offline & 0xff; | |
283b4a9b | 3390 | } else { |
edd16368 | 3391 | this_device->raid_level = RAID_UNKNOWN; |
283b4a9b SC |
3392 | this_device->offload_config = 0; |
3393 | this_device->offload_enabled = 0; | |
41ce4c35 | 3394 | this_device->offload_to_be_enabled = 0; |
a3144e0b | 3395 | this_device->hba_ioaccel_enabled = 0; |
9846590e | 3396 | this_device->volume_offline = 0; |
03383736 | 3397 | this_device->queue_depth = h->nr_cmds; |
283b4a9b | 3398 | } |
edd16368 | 3399 | |
0b0e1d6c SC |
3400 | if (is_OBDR_device) { |
3401 | /* See if this is a One-Button-Disaster-Recovery device | |
3402 | * by looking for "$DR-10" at offset 43 in inquiry data. | |
3403 | */ | |
3404 | obdr_sig = &inq_buff[OBDR_SIG_OFFSET]; | |
3405 | *is_OBDR_device = (this_device->devtype == TYPE_ROM && | |
3406 | strncmp(obdr_sig, OBDR_TAPE_SIG, | |
3407 | OBDR_SIG_LEN) == 0); | |
3408 | } | |
edd16368 SC |
3409 | kfree(inq_buff); |
3410 | return 0; | |
3411 | ||
3412 | bail_out: | |
3413 | kfree(inq_buff); | |
3414 | return 1; | |
3415 | } | |
3416 | ||
9b5c48c2 SC |
3417 | static void hpsa_update_device_supports_aborts(struct ctlr_info *h, |
3418 | struct hpsa_scsi_dev_t *dev, u8 *scsi3addr) | |
3419 | { | |
3420 | unsigned long flags; | |
3421 | int rc, entry; | |
3422 | /* | |
3423 | * See if this device supports aborts. If we already know | |
3424 | * the device, we already know if it supports aborts, otherwise | |
3425 | * we have to find out if it supports aborts by trying one. | |
3426 | */ | |
3427 | spin_lock_irqsave(&h->devlock, flags); | |
3428 | rc = hpsa_scsi_find_entry(dev, h->dev, h->ndevices, &entry); | |
3429 | if ((rc == DEVICE_SAME || rc == DEVICE_UPDATED) && | |
3430 | entry >= 0 && entry < h->ndevices) { | |
3431 | dev->supports_aborts = h->dev[entry]->supports_aborts; | |
3432 | spin_unlock_irqrestore(&h->devlock, flags); | |
3433 | } else { | |
3434 | spin_unlock_irqrestore(&h->devlock, flags); | |
3435 | dev->supports_aborts = | |
3436 | hpsa_device_supports_aborts(h, scsi3addr); | |
3437 | if (dev->supports_aborts < 0) | |
3438 | dev->supports_aborts = 0; | |
3439 | } | |
3440 | } | |
3441 | ||
4f4eb9f1 | 3442 | static unsigned char *ext_target_model[] = { |
edd16368 SC |
3443 | "MSA2012", |
3444 | "MSA2024", | |
3445 | "MSA2312", | |
3446 | "MSA2324", | |
fda38518 | 3447 | "P2000 G3 SAS", |
e06c8e5c | 3448 | "MSA 2040 SAS", |
edd16368 SC |
3449 | NULL, |
3450 | }; | |
3451 | ||
4f4eb9f1 | 3452 | static int is_ext_target(struct ctlr_info *h, struct hpsa_scsi_dev_t *device) |
edd16368 SC |
3453 | { |
3454 | int i; | |
3455 | ||
4f4eb9f1 ST |
3456 | for (i = 0; ext_target_model[i]; i++) |
3457 | if (strncmp(device->model, ext_target_model[i], | |
3458 | strlen(ext_target_model[i])) == 0) | |
edd16368 SC |
3459 | return 1; |
3460 | return 0; | |
3461 | } | |
3462 | ||
3463 | /* Helper function to assign bus, target, lun mapping of devices. | |
4f4eb9f1 | 3464 | * Puts non-external target logical volumes on bus 0, external target logical |
edd16368 SC |
3465 | * volumes on bus 1, physical devices on bus 2. and the hba on bus 3. |
3466 | * Logical drive target and lun are assigned at this time, but | |
3467 | * physical device lun and target assignment are deferred (assigned | |
3468 | * in hpsa_find_target_lun, called by hpsa_scsi_add_entry.) | |
3469 | */ | |
3470 | static void figure_bus_target_lun(struct ctlr_info *h, | |
1f310bde | 3471 | u8 *lunaddrbytes, struct hpsa_scsi_dev_t *device) |
edd16368 | 3472 | { |
1f310bde SC |
3473 | u32 lunid = le32_to_cpu(*((__le32 *) lunaddrbytes)); |
3474 | ||
3475 | if (!is_logical_dev_addr_mode(lunaddrbytes)) { | |
3476 | /* physical device, target and lun filled in later */ | |
edd16368 | 3477 | if (is_hba_lunid(lunaddrbytes)) |
1f310bde | 3478 | hpsa_set_bus_target_lun(device, 3, 0, lunid & 0x3fff); |
edd16368 | 3479 | else |
1f310bde SC |
3480 | /* defer target, lun assignment for physical devices */ |
3481 | hpsa_set_bus_target_lun(device, 2, -1, -1); | |
3482 | return; | |
3483 | } | |
3484 | /* It's a logical device */ | |
4f4eb9f1 ST |
3485 | if (is_ext_target(h, device)) { |
3486 | /* external target way, put logicals on bus 1 | |
1f310bde SC |
3487 | * and match target/lun numbers box |
3488 | * reports, other smart array, bus 0, target 0, match lunid | |
3489 | */ | |
3490 | hpsa_set_bus_target_lun(device, | |
3491 | 1, (lunid >> 16) & 0x3fff, lunid & 0x00ff); | |
3492 | return; | |
edd16368 | 3493 | } |
1f310bde | 3494 | hpsa_set_bus_target_lun(device, 0, 0, lunid & 0x3fff); |
edd16368 SC |
3495 | } |
3496 | ||
3497 | /* | |
3498 | * If there is no lun 0 on a target, linux won't find any devices. | |
4f4eb9f1 | 3499 | * For the external targets (arrays), we have to manually detect the enclosure |
edd16368 SC |
3500 | * which is at lun zero, as CCISS_REPORT_PHYSICAL_LUNS doesn't report |
3501 | * it for some reason. *tmpdevice is the target we're adding, | |
3502 | * this_device is a pointer into the current element of currentsd[] | |
3503 | * that we're building up in update_scsi_devices(), below. | |
3504 | * lunzerobits is a bitmap that tracks which targets already have a | |
3505 | * lun 0 assigned. | |
3506 | * Returns 1 if an enclosure was added, 0 if not. | |
3507 | */ | |
4f4eb9f1 | 3508 | static int add_ext_target_dev(struct ctlr_info *h, |
edd16368 | 3509 | struct hpsa_scsi_dev_t *tmpdevice, |
01a02ffc | 3510 | struct hpsa_scsi_dev_t *this_device, u8 *lunaddrbytes, |
4f4eb9f1 | 3511 | unsigned long lunzerobits[], int *n_ext_target_devs) |
edd16368 SC |
3512 | { |
3513 | unsigned char scsi3addr[8]; | |
3514 | ||
1f310bde | 3515 | if (test_bit(tmpdevice->target, lunzerobits)) |
edd16368 SC |
3516 | return 0; /* There is already a lun 0 on this target. */ |
3517 | ||
3518 | if (!is_logical_dev_addr_mode(lunaddrbytes)) | |
3519 | return 0; /* It's the logical targets that may lack lun 0. */ | |
3520 | ||
4f4eb9f1 ST |
3521 | if (!is_ext_target(h, tmpdevice)) |
3522 | return 0; /* Only external target devices have this problem. */ | |
edd16368 | 3523 | |
1f310bde | 3524 | if (tmpdevice->lun == 0) /* if lun is 0, then we have a lun 0. */ |
edd16368 SC |
3525 | return 0; |
3526 | ||
c4f8a299 | 3527 | memset(scsi3addr, 0, 8); |
1f310bde | 3528 | scsi3addr[3] = tmpdevice->target; |
edd16368 SC |
3529 | if (is_hba_lunid(scsi3addr)) |
3530 | return 0; /* Don't add the RAID controller here. */ | |
3531 | ||
339b2b14 SC |
3532 | if (is_scsi_rev_5(h)) |
3533 | return 0; /* p1210m doesn't need to do this. */ | |
3534 | ||
4f4eb9f1 | 3535 | if (*n_ext_target_devs >= MAX_EXT_TARGETS) { |
aca4a520 ST |
3536 | dev_warn(&h->pdev->dev, "Maximum number of external " |
3537 | "target devices exceeded. Check your hardware " | |
edd16368 SC |
3538 | "configuration."); |
3539 | return 0; | |
3540 | } | |
3541 | ||
0b0e1d6c | 3542 | if (hpsa_update_device_info(h, scsi3addr, this_device, NULL)) |
edd16368 | 3543 | return 0; |
4f4eb9f1 | 3544 | (*n_ext_target_devs)++; |
1f310bde SC |
3545 | hpsa_set_bus_target_lun(this_device, |
3546 | tmpdevice->bus, tmpdevice->target, 0); | |
9b5c48c2 | 3547 | hpsa_update_device_supports_aborts(h, this_device, scsi3addr); |
1f310bde | 3548 | set_bit(tmpdevice->target, lunzerobits); |
edd16368 SC |
3549 | return 1; |
3550 | } | |
3551 | ||
54b6e9e9 ST |
3552 | /* |
3553 | * Get address of physical disk used for an ioaccel2 mode command: | |
3554 | * 1. Extract ioaccel2 handle from the command. | |
3555 | * 2. Find a matching ioaccel2 handle from list of physical disks. | |
3556 | * 3. Return: | |
3557 | * 1 and set scsi3addr to address of matching physical | |
3558 | * 0 if no matching physical disk was found. | |
3559 | */ | |
3560 | static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info *h, | |
3561 | struct CommandList *ioaccel2_cmd_to_abort, unsigned char *scsi3addr) | |
3562 | { | |
41ce4c35 SC |
3563 | struct io_accel2_cmd *c2 = |
3564 | &h->ioaccel2_cmd_pool[ioaccel2_cmd_to_abort->cmdindex]; | |
3565 | unsigned long flags; | |
54b6e9e9 | 3566 | int i; |
54b6e9e9 | 3567 | |
41ce4c35 SC |
3568 | spin_lock_irqsave(&h->devlock, flags); |
3569 | for (i = 0; i < h->ndevices; i++) | |
3570 | if (h->dev[i]->ioaccel_handle == le32_to_cpu(c2->scsi_nexus)) { | |
3571 | memcpy(scsi3addr, h->dev[i]->scsi3addr, | |
3572 | sizeof(h->dev[i]->scsi3addr)); | |
3573 | spin_unlock_irqrestore(&h->devlock, flags); | |
3574 | return 1; | |
3575 | } | |
3576 | spin_unlock_irqrestore(&h->devlock, flags); | |
3577 | return 0; | |
54b6e9e9 | 3578 | } |
41ce4c35 | 3579 | |
edd16368 SC |
3580 | /* |
3581 | * Do CISS_REPORT_PHYS and CISS_REPORT_LOG. Data is returned in physdev, | |
3582 | * logdev. The number of luns in physdev and logdev are returned in | |
3583 | * *nphysicals and *nlogicals, respectively. | |
3584 | * Returns 0 on success, -1 otherwise. | |
3585 | */ | |
3586 | static int hpsa_gather_lun_info(struct ctlr_info *h, | |
03383736 | 3587 | struct ReportExtendedLUNdata *physdev, u32 *nphysicals, |
01a02ffc | 3588 | struct ReportLUNdata *logdev, u32 *nlogicals) |
edd16368 | 3589 | { |
03383736 | 3590 | if (hpsa_scsi_do_report_phys_luns(h, physdev, sizeof(*physdev))) { |
edd16368 SC |
3591 | dev_err(&h->pdev->dev, "report physical LUNs failed.\n"); |
3592 | return -1; | |
3593 | } | |
03383736 | 3594 | *nphysicals = be32_to_cpu(*((__be32 *)physdev->LUNListLength)) / 24; |
edd16368 | 3595 | if (*nphysicals > HPSA_MAX_PHYS_LUN) { |
03383736 DB |
3596 | dev_warn(&h->pdev->dev, "maximum physical LUNs (%d) exceeded. %d LUNs ignored.\n", |
3597 | HPSA_MAX_PHYS_LUN, *nphysicals - HPSA_MAX_PHYS_LUN); | |
edd16368 SC |
3598 | *nphysicals = HPSA_MAX_PHYS_LUN; |
3599 | } | |
03383736 | 3600 | if (hpsa_scsi_do_report_log_luns(h, logdev, sizeof(*logdev))) { |
edd16368 SC |
3601 | dev_err(&h->pdev->dev, "report logical LUNs failed.\n"); |
3602 | return -1; | |
3603 | } | |
6df1e954 | 3604 | *nlogicals = be32_to_cpu(*((__be32 *) logdev->LUNListLength)) / 8; |
edd16368 SC |
3605 | /* Reject Logicals in excess of our max capability. */ |
3606 | if (*nlogicals > HPSA_MAX_LUN) { | |
3607 | dev_warn(&h->pdev->dev, | |
3608 | "maximum logical LUNs (%d) exceeded. " | |
3609 | "%d LUNs ignored.\n", HPSA_MAX_LUN, | |
3610 | *nlogicals - HPSA_MAX_LUN); | |
3611 | *nlogicals = HPSA_MAX_LUN; | |
3612 | } | |
3613 | if (*nlogicals + *nphysicals > HPSA_MAX_PHYS_LUN) { | |
3614 | dev_warn(&h->pdev->dev, | |
3615 | "maximum logical + physical LUNs (%d) exceeded. " | |
3616 | "%d LUNs ignored.\n", HPSA_MAX_PHYS_LUN, | |
3617 | *nphysicals + *nlogicals - HPSA_MAX_PHYS_LUN); | |
3618 | *nlogicals = HPSA_MAX_PHYS_LUN - *nphysicals; | |
3619 | } | |
3620 | return 0; | |
3621 | } | |
3622 | ||
42a91641 DB |
3623 | static u8 *figure_lunaddrbytes(struct ctlr_info *h, int raid_ctlr_position, |
3624 | int i, int nphysicals, int nlogicals, | |
a93aa1fe | 3625 | struct ReportExtendedLUNdata *physdev_list, |
339b2b14 SC |
3626 | struct ReportLUNdata *logdev_list) |
3627 | { | |
3628 | /* Helper function, figure out where the LUN ID info is coming from | |
3629 | * given index i, lists of physical and logical devices, where in | |
3630 | * the list the raid controller is supposed to appear (first or last) | |
3631 | */ | |
3632 | ||
3633 | int logicals_start = nphysicals + (raid_ctlr_position == 0); | |
3634 | int last_device = nphysicals + nlogicals + (raid_ctlr_position == 0); | |
3635 | ||
3636 | if (i == raid_ctlr_position) | |
3637 | return RAID_CTLR_LUNID; | |
3638 | ||
3639 | if (i < logicals_start) | |
d5b5d964 SC |
3640 | return &physdev_list->LUN[i - |
3641 | (raid_ctlr_position == 0)].lunid[0]; | |
339b2b14 SC |
3642 | |
3643 | if (i < last_device) | |
3644 | return &logdev_list->LUN[i - nphysicals - | |
3645 | (raid_ctlr_position == 0)][0]; | |
3646 | BUG(); | |
3647 | return NULL; | |
3648 | } | |
3649 | ||
03383736 DB |
3650 | /* get physical drive ioaccel handle and queue depth */ |
3651 | static void hpsa_get_ioaccel_drive_info(struct ctlr_info *h, | |
3652 | struct hpsa_scsi_dev_t *dev, | |
3653 | u8 *lunaddrbytes, | |
3654 | struct bmic_identify_physical_device *id_phys) | |
3655 | { | |
3656 | int rc; | |
3657 | struct ext_report_lun_entry *rle = | |
3658 | (struct ext_report_lun_entry *) lunaddrbytes; | |
3659 | ||
3660 | dev->ioaccel_handle = rle->ioaccel_handle; | |
a3144e0b JH |
3661 | if (PHYS_IOACCEL(lunaddrbytes) && dev->ioaccel_handle) |
3662 | dev->hba_ioaccel_enabled = 1; | |
03383736 DB |
3663 | memset(id_phys, 0, sizeof(*id_phys)); |
3664 | rc = hpsa_bmic_id_physical_device(h, lunaddrbytes, | |
3665 | GET_BMIC_DRIVE_NUMBER(lunaddrbytes), id_phys, | |
3666 | sizeof(*id_phys)); | |
3667 | if (!rc) | |
3668 | /* Reserve space for FW operations */ | |
3669 | #define DRIVE_CMDS_RESERVED_FOR_FW 2 | |
3670 | #define DRIVE_QUEUE_DEPTH 7 | |
3671 | dev->queue_depth = | |
3672 | le16_to_cpu(id_phys->current_queue_depth_limit) - | |
3673 | DRIVE_CMDS_RESERVED_FOR_FW; | |
3674 | else | |
3675 | dev->queue_depth = DRIVE_QUEUE_DEPTH; /* conservative */ | |
3676 | atomic_set(&dev->ioaccel_cmds_out, 0); | |
d604f533 | 3677 | atomic_set(&dev->reset_cmds_out, 0); |
03383736 DB |
3678 | } |
3679 | ||
8270b862 JH |
3680 | static void hpsa_get_path_info(struct hpsa_scsi_dev_t *this_device, |
3681 | u8 *lunaddrbytes, | |
3682 | struct bmic_identify_physical_device *id_phys) | |
3683 | { | |
3684 | if (PHYS_IOACCEL(lunaddrbytes) | |
3685 | && this_device->ioaccel_handle) | |
3686 | this_device->hba_ioaccel_enabled = 1; | |
3687 | ||
3688 | memcpy(&this_device->active_path_index, | |
3689 | &id_phys->active_path_number, | |
3690 | sizeof(this_device->active_path_index)); | |
3691 | memcpy(&this_device->path_map, | |
3692 | &id_phys->redundant_path_present_map, | |
3693 | sizeof(this_device->path_map)); | |
3694 | memcpy(&this_device->box, | |
3695 | &id_phys->alternate_paths_phys_box_on_port, | |
3696 | sizeof(this_device->box)); | |
3697 | memcpy(&this_device->phys_connector, | |
3698 | &id_phys->alternate_paths_phys_connector, | |
3699 | sizeof(this_device->phys_connector)); | |
3700 | memcpy(&this_device->bay, | |
3701 | &id_phys->phys_bay_in_box, | |
3702 | sizeof(this_device->bay)); | |
3703 | } | |
3704 | ||
edd16368 SC |
3705 | static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) |
3706 | { | |
3707 | /* the idea here is we could get notified | |
3708 | * that some devices have changed, so we do a report | |
3709 | * physical luns and report logical luns cmd, and adjust | |
3710 | * our list of devices accordingly. | |
3711 | * | |
3712 | * The scsi3addr's of devices won't change so long as the | |
3713 | * adapter is not reset. That means we can rescan and | |
3714 | * tell which devices we already know about, vs. new | |
3715 | * devices, vs. disappearing devices. | |
3716 | */ | |
a93aa1fe | 3717 | struct ReportExtendedLUNdata *physdev_list = NULL; |
edd16368 | 3718 | struct ReportLUNdata *logdev_list = NULL; |
03383736 | 3719 | struct bmic_identify_physical_device *id_phys = NULL; |
01a02ffc SC |
3720 | u32 nphysicals = 0; |
3721 | u32 nlogicals = 0; | |
3722 | u32 ndev_allocated = 0; | |
edd16368 SC |
3723 | struct hpsa_scsi_dev_t **currentsd, *this_device, *tmpdevice; |
3724 | int ncurrent = 0; | |
4f4eb9f1 | 3725 | int i, n_ext_target_devs, ndevs_to_allocate; |
339b2b14 | 3726 | int raid_ctlr_position; |
aca4a520 | 3727 | DECLARE_BITMAP(lunzerobits, MAX_EXT_TARGETS); |
edd16368 | 3728 | |
cfe5badc | 3729 | currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_DEVICES, GFP_KERNEL); |
92084715 SC |
3730 | physdev_list = kzalloc(sizeof(*physdev_list), GFP_KERNEL); |
3731 | logdev_list = kzalloc(sizeof(*logdev_list), GFP_KERNEL); | |
edd16368 | 3732 | tmpdevice = kzalloc(sizeof(*tmpdevice), GFP_KERNEL); |
03383736 | 3733 | id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL); |
edd16368 | 3734 | |
03383736 DB |
3735 | if (!currentsd || !physdev_list || !logdev_list || |
3736 | !tmpdevice || !id_phys) { | |
edd16368 SC |
3737 | dev_err(&h->pdev->dev, "out of memory\n"); |
3738 | goto out; | |
3739 | } | |
3740 | memset(lunzerobits, 0, sizeof(lunzerobits)); | |
3741 | ||
03383736 DB |
3742 | if (hpsa_gather_lun_info(h, physdev_list, &nphysicals, |
3743 | logdev_list, &nlogicals)) | |
edd16368 SC |
3744 | goto out; |
3745 | ||
aca4a520 ST |
3746 | /* We might see up to the maximum number of logical and physical disks |
3747 | * plus external target devices, and a device for the local RAID | |
3748 | * controller. | |
edd16368 | 3749 | */ |
aca4a520 | 3750 | ndevs_to_allocate = nphysicals + nlogicals + MAX_EXT_TARGETS + 1; |
edd16368 SC |
3751 | |
3752 | /* Allocate the per device structures */ | |
3753 | for (i = 0; i < ndevs_to_allocate; i++) { | |
b7ec021f ST |
3754 | if (i >= HPSA_MAX_DEVICES) { |
3755 | dev_warn(&h->pdev->dev, "maximum devices (%d) exceeded." | |
3756 | " %d devices ignored.\n", HPSA_MAX_DEVICES, | |
3757 | ndevs_to_allocate - HPSA_MAX_DEVICES); | |
3758 | break; | |
3759 | } | |
3760 | ||
edd16368 SC |
3761 | currentsd[i] = kzalloc(sizeof(*currentsd[i]), GFP_KERNEL); |
3762 | if (!currentsd[i]) { | |
3763 | dev_warn(&h->pdev->dev, "out of memory at %s:%d\n", | |
3764 | __FILE__, __LINE__); | |
3765 | goto out; | |
3766 | } | |
3767 | ndev_allocated++; | |
3768 | } | |
3769 | ||
8645291b | 3770 | if (is_scsi_rev_5(h)) |
339b2b14 SC |
3771 | raid_ctlr_position = 0; |
3772 | else | |
3773 | raid_ctlr_position = nphysicals + nlogicals; | |
3774 | ||
edd16368 | 3775 | /* adjust our table of devices */ |
4f4eb9f1 | 3776 | n_ext_target_devs = 0; |
edd16368 | 3777 | for (i = 0; i < nphysicals + nlogicals + 1; i++) { |
0b0e1d6c | 3778 | u8 *lunaddrbytes, is_OBDR = 0; |
edd16368 SC |
3779 | |
3780 | /* Figure out where the LUN ID info is coming from */ | |
339b2b14 SC |
3781 | lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position, |
3782 | i, nphysicals, nlogicals, physdev_list, logdev_list); | |
41ce4c35 SC |
3783 | |
3784 | /* skip masked non-disk devices */ | |
3785 | if (MASKED_DEVICE(lunaddrbytes)) | |
3786 | if (i < nphysicals + (raid_ctlr_position == 0) && | |
3787 | NON_DISK_PHYS_DEV(lunaddrbytes)) | |
3788 | continue; | |
edd16368 SC |
3789 | |
3790 | /* Get device type, vendor, model, device id */ | |
0b0e1d6c SC |
3791 | if (hpsa_update_device_info(h, lunaddrbytes, tmpdevice, |
3792 | &is_OBDR)) | |
edd16368 | 3793 | continue; /* skip it if we can't talk to it. */ |
1f310bde | 3794 | figure_bus_target_lun(h, lunaddrbytes, tmpdevice); |
9b5c48c2 | 3795 | hpsa_update_device_supports_aborts(h, tmpdevice, lunaddrbytes); |
edd16368 SC |
3796 | this_device = currentsd[ncurrent]; |
3797 | ||
3798 | /* | |
4f4eb9f1 | 3799 | * For external target devices, we have to insert a LUN 0 which |
edd16368 SC |
3800 | * doesn't show up in CCISS_REPORT_PHYSICAL data, but there |
3801 | * is nonetheless an enclosure device there. We have to | |
3802 | * present that otherwise linux won't find anything if | |
3803 | * there is no lun 0. | |
3804 | */ | |
4f4eb9f1 | 3805 | if (add_ext_target_dev(h, tmpdevice, this_device, |
1f310bde | 3806 | lunaddrbytes, lunzerobits, |
4f4eb9f1 | 3807 | &n_ext_target_devs)) { |
edd16368 SC |
3808 | ncurrent++; |
3809 | this_device = currentsd[ncurrent]; | |
3810 | } | |
3811 | ||
3812 | *this_device = *tmpdevice; | |
edd16368 | 3813 | |
41ce4c35 SC |
3814 | /* do not expose masked devices */ |
3815 | if (MASKED_DEVICE(lunaddrbytes) && | |
3816 | i < nphysicals + (raid_ctlr_position == 0)) { | |
41ce4c35 SC |
3817 | this_device->expose_state = HPSA_DO_NOT_EXPOSE; |
3818 | } else { | |
3819 | this_device->expose_state = | |
3820 | HPSA_SG_ATTACH | HPSA_ULD_ATTACH; | |
3821 | } | |
3822 | ||
edd16368 | 3823 | switch (this_device->devtype) { |
0b0e1d6c | 3824 | case TYPE_ROM: |
edd16368 SC |
3825 | /* We don't *really* support actual CD-ROM devices, |
3826 | * just "One Button Disaster Recovery" tape drive | |
3827 | * which temporarily pretends to be a CD-ROM drive. | |
3828 | * So we check that the device is really an OBDR tape | |
3829 | * device by checking for "$DR-10" in bytes 43-48 of | |
3830 | * the inquiry data. | |
3831 | */ | |
0b0e1d6c SC |
3832 | if (is_OBDR) |
3833 | ncurrent++; | |
edd16368 SC |
3834 | break; |
3835 | case TYPE_DISK: | |
b9092b79 KB |
3836 | if (i < nphysicals + (raid_ctlr_position == 0)) { |
3837 | /* The disk is in HBA mode. */ | |
3838 | /* Never use RAID mapper in HBA mode. */ | |
ecf418d1 | 3839 | this_device->offload_enabled = 0; |
b9092b79 KB |
3840 | hpsa_get_ioaccel_drive_info(h, this_device, |
3841 | lunaddrbytes, id_phys); | |
3842 | hpsa_get_path_info(this_device, lunaddrbytes, | |
3843 | id_phys); | |
3844 | } | |
ecf418d1 | 3845 | ncurrent++; |
edd16368 SC |
3846 | break; |
3847 | case TYPE_TAPE: | |
3848 | case TYPE_MEDIUM_CHANGER: | |
41ce4c35 | 3849 | case TYPE_ENCLOSURE: |
b9092b79 | 3850 | ncurrent++; |
41ce4c35 | 3851 | break; |
edd16368 SC |
3852 | case TYPE_RAID: |
3853 | /* Only present the Smartarray HBA as a RAID controller. | |
3854 | * If it's a RAID controller other than the HBA itself | |
3855 | * (an external RAID controller, MSA500 or similar) | |
3856 | * don't present it. | |
3857 | */ | |
3858 | if (!is_hba_lunid(lunaddrbytes)) | |
3859 | break; | |
3860 | ncurrent++; | |
3861 | break; | |
3862 | default: | |
3863 | break; | |
3864 | } | |
cfe5badc | 3865 | if (ncurrent >= HPSA_MAX_DEVICES) |
edd16368 SC |
3866 | break; |
3867 | } | |
3868 | adjust_hpsa_scsi_table(h, hostno, currentsd, ncurrent); | |
3869 | out: | |
3870 | kfree(tmpdevice); | |
3871 | for (i = 0; i < ndev_allocated; i++) | |
3872 | kfree(currentsd[i]); | |
3873 | kfree(currentsd); | |
edd16368 SC |
3874 | kfree(physdev_list); |
3875 | kfree(logdev_list); | |
03383736 | 3876 | kfree(id_phys); |
edd16368 SC |
3877 | } |
3878 | ||
ec5cbf04 WS |
3879 | static void hpsa_set_sg_descriptor(struct SGDescriptor *desc, |
3880 | struct scatterlist *sg) | |
3881 | { | |
3882 | u64 addr64 = (u64) sg_dma_address(sg); | |
3883 | unsigned int len = sg_dma_len(sg); | |
3884 | ||
3885 | desc->Addr = cpu_to_le64(addr64); | |
3886 | desc->Len = cpu_to_le32(len); | |
3887 | desc->Ext = 0; | |
3888 | } | |
3889 | ||
c7ee65b3 WS |
3890 | /* |
3891 | * hpsa_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci | |
edd16368 SC |
3892 | * dma mapping and fills in the scatter gather entries of the |
3893 | * hpsa command, cp. | |
3894 | */ | |
33a2ffce | 3895 | static int hpsa_scatter_gather(struct ctlr_info *h, |
edd16368 SC |
3896 | struct CommandList *cp, |
3897 | struct scsi_cmnd *cmd) | |
3898 | { | |
edd16368 | 3899 | struct scatterlist *sg; |
b3a7ba7c | 3900 | int use_sg, i, sg_limit, chained, last_sg; |
33a2ffce | 3901 | struct SGDescriptor *curr_sg; |
edd16368 | 3902 | |
33a2ffce | 3903 | BUG_ON(scsi_sg_count(cmd) > h->maxsgentries); |
edd16368 SC |
3904 | |
3905 | use_sg = scsi_dma_map(cmd); | |
3906 | if (use_sg < 0) | |
3907 | return use_sg; | |
3908 | ||
3909 | if (!use_sg) | |
3910 | goto sglist_finished; | |
3911 | ||
b3a7ba7c WS |
3912 | /* |
3913 | * If the number of entries is greater than the max for a single list, | |
3914 | * then we have a chained list; we will set up all but one entry in the | |
3915 | * first list (the last entry is saved for link information); | |
3916 | * otherwise, we don't have a chained list and we'll set up at each of | |
3917 | * the entries in the one list. | |
3918 | */ | |
33a2ffce | 3919 | curr_sg = cp->SG; |
b3a7ba7c WS |
3920 | chained = use_sg > h->max_cmd_sg_entries; |
3921 | sg_limit = chained ? h->max_cmd_sg_entries - 1 : use_sg; | |
3922 | last_sg = scsi_sg_count(cmd) - 1; | |
3923 | scsi_for_each_sg(cmd, sg, sg_limit, i) { | |
ec5cbf04 | 3924 | hpsa_set_sg_descriptor(curr_sg, sg); |
33a2ffce SC |
3925 | curr_sg++; |
3926 | } | |
ec5cbf04 | 3927 | |
b3a7ba7c WS |
3928 | if (chained) { |
3929 | /* | |
3930 | * Continue with the chained list. Set curr_sg to the chained | |
3931 | * list. Modify the limit to the total count less the entries | |
3932 | * we've already set up. Resume the scan at the list entry | |
3933 | * where the previous loop left off. | |
3934 | */ | |
3935 | curr_sg = h->cmd_sg_list[cp->cmdindex]; | |
3936 | sg_limit = use_sg - sg_limit; | |
3937 | for_each_sg(sg, sg, sg_limit, i) { | |
3938 | hpsa_set_sg_descriptor(curr_sg, sg); | |
3939 | curr_sg++; | |
3940 | } | |
3941 | } | |
3942 | ||
ec5cbf04 | 3943 | /* Back the pointer up to the last entry and mark it as "last". */ |
b3a7ba7c | 3944 | (curr_sg - 1)->Ext = cpu_to_le32(HPSA_SG_LAST); |
33a2ffce SC |
3945 | |
3946 | if (use_sg + chained > h->maxSG) | |
3947 | h->maxSG = use_sg + chained; | |
3948 | ||
3949 | if (chained) { | |
3950 | cp->Header.SGList = h->max_cmd_sg_entries; | |
50a0decf | 3951 | cp->Header.SGTotal = cpu_to_le16(use_sg + 1); |
e2bea6df SC |
3952 | if (hpsa_map_sg_chain_block(h, cp)) { |
3953 | scsi_dma_unmap(cmd); | |
3954 | return -1; | |
3955 | } | |
33a2ffce | 3956 | return 0; |
edd16368 SC |
3957 | } |
3958 | ||
3959 | sglist_finished: | |
3960 | ||
01a02ffc | 3961 | cp->Header.SGList = (u8) use_sg; /* no. SGs contig in this cmd */ |
c7ee65b3 | 3962 | cp->Header.SGTotal = cpu_to_le16(use_sg); /* total sgs in cmd list */ |
edd16368 SC |
3963 | return 0; |
3964 | } | |
3965 | ||
283b4a9b SC |
3966 | #define IO_ACCEL_INELIGIBLE (1) |
3967 | static int fixup_ioaccel_cdb(u8 *cdb, int *cdb_len) | |
3968 | { | |
3969 | int is_write = 0; | |
3970 | u32 block; | |
3971 | u32 block_cnt; | |
3972 | ||
3973 | /* Perform some CDB fixups if needed using 10 byte reads/writes only */ | |
3974 | switch (cdb[0]) { | |
3975 | case WRITE_6: | |
3976 | case WRITE_12: | |
3977 | is_write = 1; | |
3978 | case READ_6: | |
3979 | case READ_12: | |
3980 | if (*cdb_len == 6) { | |
3981 | block = (((u32) cdb[2]) << 8) | cdb[3]; | |
3982 | block_cnt = cdb[4]; | |
3983 | } else { | |
3984 | BUG_ON(*cdb_len != 12); | |
3985 | block = (((u32) cdb[2]) << 24) | | |
3986 | (((u32) cdb[3]) << 16) | | |
3987 | (((u32) cdb[4]) << 8) | | |
3988 | cdb[5]; | |
3989 | block_cnt = | |
3990 | (((u32) cdb[6]) << 24) | | |
3991 | (((u32) cdb[7]) << 16) | | |
3992 | (((u32) cdb[8]) << 8) | | |
3993 | cdb[9]; | |
3994 | } | |
3995 | if (block_cnt > 0xffff) | |
3996 | return IO_ACCEL_INELIGIBLE; | |
3997 | ||
3998 | cdb[0] = is_write ? WRITE_10 : READ_10; | |
3999 | cdb[1] = 0; | |
4000 | cdb[2] = (u8) (block >> 24); | |
4001 | cdb[3] = (u8) (block >> 16); | |
4002 | cdb[4] = (u8) (block >> 8); | |
4003 | cdb[5] = (u8) (block); | |
4004 | cdb[6] = 0; | |
4005 | cdb[7] = (u8) (block_cnt >> 8); | |
4006 | cdb[8] = (u8) (block_cnt); | |
4007 | cdb[9] = 0; | |
4008 | *cdb_len = 10; | |
4009 | break; | |
4010 | } | |
4011 | return 0; | |
4012 | } | |
4013 | ||
c349775e | 4014 | static int hpsa_scsi_ioaccel1_queue_command(struct ctlr_info *h, |
283b4a9b | 4015 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, |
03383736 | 4016 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk) |
e1f7de0c MG |
4017 | { |
4018 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
e1f7de0c MG |
4019 | struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex]; |
4020 | unsigned int len; | |
4021 | unsigned int total_len = 0; | |
4022 | struct scatterlist *sg; | |
4023 | u64 addr64; | |
4024 | int use_sg, i; | |
4025 | struct SGDescriptor *curr_sg; | |
4026 | u32 control = IOACCEL1_CONTROL_SIMPLEQUEUE; | |
4027 | ||
283b4a9b | 4028 | /* TODO: implement chaining support */ |
03383736 DB |
4029 | if (scsi_sg_count(cmd) > h->ioaccel_maxsg) { |
4030 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
283b4a9b | 4031 | return IO_ACCEL_INELIGIBLE; |
03383736 | 4032 | } |
283b4a9b | 4033 | |
e1f7de0c MG |
4034 | BUG_ON(cmd->cmd_len > IOACCEL1_IOFLAGS_CDBLEN_MAX); |
4035 | ||
03383736 DB |
4036 | if (fixup_ioaccel_cdb(cdb, &cdb_len)) { |
4037 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
283b4a9b | 4038 | return IO_ACCEL_INELIGIBLE; |
03383736 | 4039 | } |
283b4a9b | 4040 | |
e1f7de0c MG |
4041 | c->cmd_type = CMD_IOACCEL1; |
4042 | ||
4043 | /* Adjust the DMA address to point to the accelerated command buffer */ | |
4044 | c->busaddr = (u32) h->ioaccel_cmd_pool_dhandle + | |
4045 | (c->cmdindex * sizeof(*cp)); | |
4046 | BUG_ON(c->busaddr & 0x0000007F); | |
4047 | ||
4048 | use_sg = scsi_dma_map(cmd); | |
03383736 DB |
4049 | if (use_sg < 0) { |
4050 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
e1f7de0c | 4051 | return use_sg; |
03383736 | 4052 | } |
e1f7de0c MG |
4053 | |
4054 | if (use_sg) { | |
4055 | curr_sg = cp->SG; | |
4056 | scsi_for_each_sg(cmd, sg, use_sg, i) { | |
4057 | addr64 = (u64) sg_dma_address(sg); | |
4058 | len = sg_dma_len(sg); | |
4059 | total_len += len; | |
50a0decf SC |
4060 | curr_sg->Addr = cpu_to_le64(addr64); |
4061 | curr_sg->Len = cpu_to_le32(len); | |
4062 | curr_sg->Ext = cpu_to_le32(0); | |
e1f7de0c MG |
4063 | curr_sg++; |
4064 | } | |
50a0decf | 4065 | (--curr_sg)->Ext = cpu_to_le32(HPSA_SG_LAST); |
e1f7de0c MG |
4066 | |
4067 | switch (cmd->sc_data_direction) { | |
4068 | case DMA_TO_DEVICE: | |
4069 | control |= IOACCEL1_CONTROL_DATA_OUT; | |
4070 | break; | |
4071 | case DMA_FROM_DEVICE: | |
4072 | control |= IOACCEL1_CONTROL_DATA_IN; | |
4073 | break; | |
4074 | case DMA_NONE: | |
4075 | control |= IOACCEL1_CONTROL_NODATAXFER; | |
4076 | break; | |
4077 | default: | |
4078 | dev_err(&h->pdev->dev, "unknown data direction: %d\n", | |
4079 | cmd->sc_data_direction); | |
4080 | BUG(); | |
4081 | break; | |
4082 | } | |
4083 | } else { | |
4084 | control |= IOACCEL1_CONTROL_NODATAXFER; | |
4085 | } | |
4086 | ||
c349775e | 4087 | c->Header.SGList = use_sg; |
e1f7de0c | 4088 | /* Fill out the command structure to submit */ |
2b08b3e9 DB |
4089 | cp->dev_handle = cpu_to_le16(ioaccel_handle & 0xFFFF); |
4090 | cp->transfer_len = cpu_to_le32(total_len); | |
4091 | cp->io_flags = cpu_to_le16(IOACCEL1_IOFLAGS_IO_REQ | | |
4092 | (cdb_len & IOACCEL1_IOFLAGS_CDBLEN_MASK)); | |
4093 | cp->control = cpu_to_le32(control); | |
283b4a9b SC |
4094 | memcpy(cp->CDB, cdb, cdb_len); |
4095 | memcpy(cp->CISS_LUN, scsi3addr, 8); | |
c349775e | 4096 | /* Tag was already set at init time. */ |
283b4a9b | 4097 | enqueue_cmd_and_start_io(h, c); |
e1f7de0c MG |
4098 | return 0; |
4099 | } | |
edd16368 | 4100 | |
283b4a9b SC |
4101 | /* |
4102 | * Queue a command directly to a device behind the controller using the | |
4103 | * I/O accelerator path. | |
4104 | */ | |
4105 | static int hpsa_scsi_ioaccel_direct_map(struct ctlr_info *h, | |
4106 | struct CommandList *c) | |
4107 | { | |
4108 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4109 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4110 | ||
03383736 DB |
4111 | c->phys_disk = dev; |
4112 | ||
283b4a9b | 4113 | return hpsa_scsi_ioaccel_queue_command(h, c, dev->ioaccel_handle, |
03383736 | 4114 | cmd->cmnd, cmd->cmd_len, dev->scsi3addr, dev); |
283b4a9b SC |
4115 | } |
4116 | ||
dd0e19f3 ST |
4117 | /* |
4118 | * Set encryption parameters for the ioaccel2 request | |
4119 | */ | |
4120 | static void set_encrypt_ioaccel2(struct ctlr_info *h, | |
4121 | struct CommandList *c, struct io_accel2_cmd *cp) | |
4122 | { | |
4123 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4124 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4125 | struct raid_map_data *map = &dev->raid_map; | |
4126 | u64 first_block; | |
4127 | ||
dd0e19f3 | 4128 | /* Are we doing encryption on this device */ |
2b08b3e9 | 4129 | if (!(le16_to_cpu(map->flags) & RAID_MAP_FLAG_ENCRYPT_ON)) |
dd0e19f3 ST |
4130 | return; |
4131 | /* Set the data encryption key index. */ | |
4132 | cp->dekindex = map->dekindex; | |
4133 | ||
4134 | /* Set the encryption enable flag, encoded into direction field. */ | |
4135 | cp->direction |= IOACCEL2_DIRECTION_ENCRYPT_MASK; | |
4136 | ||
4137 | /* Set encryption tweak values based on logical block address | |
4138 | * If block size is 512, tweak value is LBA. | |
4139 | * For other block sizes, tweak is (LBA * block size)/ 512) | |
4140 | */ | |
4141 | switch (cmd->cmnd[0]) { | |
4142 | /* Required? 6-byte cdbs eliminated by fixup_ioaccel_cdb */ | |
4143 | case WRITE_6: | |
4144 | case READ_6: | |
2b08b3e9 | 4145 | first_block = get_unaligned_be16(&cmd->cmnd[2]); |
dd0e19f3 ST |
4146 | break; |
4147 | case WRITE_10: | |
4148 | case READ_10: | |
dd0e19f3 ST |
4149 | /* Required? 12-byte cdbs eliminated by fixup_ioaccel_cdb */ |
4150 | case WRITE_12: | |
4151 | case READ_12: | |
2b08b3e9 | 4152 | first_block = get_unaligned_be32(&cmd->cmnd[2]); |
dd0e19f3 ST |
4153 | break; |
4154 | case WRITE_16: | |
4155 | case READ_16: | |
2b08b3e9 | 4156 | first_block = get_unaligned_be64(&cmd->cmnd[2]); |
dd0e19f3 ST |
4157 | break; |
4158 | default: | |
4159 | dev_err(&h->pdev->dev, | |
2b08b3e9 DB |
4160 | "ERROR: %s: size (0x%x) not supported for encryption\n", |
4161 | __func__, cmd->cmnd[0]); | |
dd0e19f3 ST |
4162 | BUG(); |
4163 | break; | |
4164 | } | |
2b08b3e9 DB |
4165 | |
4166 | if (le32_to_cpu(map->volume_blk_size) != 512) | |
4167 | first_block = first_block * | |
4168 | le32_to_cpu(map->volume_blk_size)/512; | |
4169 | ||
4170 | cp->tweak_lower = cpu_to_le32(first_block); | |
4171 | cp->tweak_upper = cpu_to_le32(first_block >> 32); | |
dd0e19f3 ST |
4172 | } |
4173 | ||
c349775e ST |
4174 | static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h, |
4175 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, | |
03383736 | 4176 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk) |
c349775e ST |
4177 | { |
4178 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4179 | struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
4180 | struct ioaccel2_sg_element *curr_sg; | |
4181 | int use_sg, i; | |
4182 | struct scatterlist *sg; | |
4183 | u64 addr64; | |
4184 | u32 len; | |
4185 | u32 total_len = 0; | |
4186 | ||
d9a729f3 | 4187 | BUG_ON(scsi_sg_count(cmd) > h->maxsgentries); |
c349775e | 4188 | |
03383736 DB |
4189 | if (fixup_ioaccel_cdb(cdb, &cdb_len)) { |
4190 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
c349775e | 4191 | return IO_ACCEL_INELIGIBLE; |
03383736 DB |
4192 | } |
4193 | ||
c349775e ST |
4194 | c->cmd_type = CMD_IOACCEL2; |
4195 | /* Adjust the DMA address to point to the accelerated command buffer */ | |
4196 | c->busaddr = (u32) h->ioaccel2_cmd_pool_dhandle + | |
4197 | (c->cmdindex * sizeof(*cp)); | |
4198 | BUG_ON(c->busaddr & 0x0000007F); | |
4199 | ||
4200 | memset(cp, 0, sizeof(*cp)); | |
4201 | cp->IU_type = IOACCEL2_IU_TYPE; | |
4202 | ||
4203 | use_sg = scsi_dma_map(cmd); | |
03383736 DB |
4204 | if (use_sg < 0) { |
4205 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
c349775e | 4206 | return use_sg; |
03383736 | 4207 | } |
c349775e ST |
4208 | |
4209 | if (use_sg) { | |
c349775e | 4210 | curr_sg = cp->sg; |
d9a729f3 WS |
4211 | if (use_sg > h->ioaccel_maxsg) { |
4212 | addr64 = le64_to_cpu( | |
4213 | h->ioaccel2_cmd_sg_list[c->cmdindex]->address); | |
4214 | curr_sg->address = cpu_to_le64(addr64); | |
4215 | curr_sg->length = 0; | |
4216 | curr_sg->reserved[0] = 0; | |
4217 | curr_sg->reserved[1] = 0; | |
4218 | curr_sg->reserved[2] = 0; | |
4219 | curr_sg->chain_indicator = 0x80; | |
4220 | ||
4221 | curr_sg = h->ioaccel2_cmd_sg_list[c->cmdindex]; | |
4222 | } | |
c349775e ST |
4223 | scsi_for_each_sg(cmd, sg, use_sg, i) { |
4224 | addr64 = (u64) sg_dma_address(sg); | |
4225 | len = sg_dma_len(sg); | |
4226 | total_len += len; | |
4227 | curr_sg->address = cpu_to_le64(addr64); | |
4228 | curr_sg->length = cpu_to_le32(len); | |
4229 | curr_sg->reserved[0] = 0; | |
4230 | curr_sg->reserved[1] = 0; | |
4231 | curr_sg->reserved[2] = 0; | |
4232 | curr_sg->chain_indicator = 0; | |
4233 | curr_sg++; | |
4234 | } | |
4235 | ||
4236 | switch (cmd->sc_data_direction) { | |
4237 | case DMA_TO_DEVICE: | |
dd0e19f3 ST |
4238 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4239 | cp->direction |= IOACCEL2_DIR_DATA_OUT; | |
c349775e ST |
4240 | break; |
4241 | case DMA_FROM_DEVICE: | |
dd0e19f3 ST |
4242 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4243 | cp->direction |= IOACCEL2_DIR_DATA_IN; | |
c349775e ST |
4244 | break; |
4245 | case DMA_NONE: | |
dd0e19f3 ST |
4246 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4247 | cp->direction |= IOACCEL2_DIR_NO_DATA; | |
c349775e ST |
4248 | break; |
4249 | default: | |
4250 | dev_err(&h->pdev->dev, "unknown data direction: %d\n", | |
4251 | cmd->sc_data_direction); | |
4252 | BUG(); | |
4253 | break; | |
4254 | } | |
4255 | } else { | |
dd0e19f3 ST |
4256 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4257 | cp->direction |= IOACCEL2_DIR_NO_DATA; | |
c349775e | 4258 | } |
dd0e19f3 ST |
4259 | |
4260 | /* Set encryption parameters, if necessary */ | |
4261 | set_encrypt_ioaccel2(h, c, cp); | |
4262 | ||
2b08b3e9 | 4263 | cp->scsi_nexus = cpu_to_le32(ioaccel_handle); |
f2405db8 | 4264 | cp->Tag = cpu_to_le32(c->cmdindex << DIRECT_LOOKUP_SHIFT); |
c349775e | 4265 | memcpy(cp->cdb, cdb, sizeof(cp->cdb)); |
c349775e | 4266 | |
c349775e ST |
4267 | cp->data_len = cpu_to_le32(total_len); |
4268 | cp->err_ptr = cpu_to_le64(c->busaddr + | |
4269 | offsetof(struct io_accel2_cmd, error_data)); | |
50a0decf | 4270 | cp->err_len = cpu_to_le32(sizeof(cp->error_data)); |
c349775e | 4271 | |
d9a729f3 WS |
4272 | /* fill in sg elements */ |
4273 | if (use_sg > h->ioaccel_maxsg) { | |
4274 | cp->sg_count = 1; | |
4275 | if (hpsa_map_ioaccel2_sg_chain_block(h, cp, c)) { | |
4276 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
4277 | scsi_dma_unmap(cmd); | |
4278 | return -1; | |
4279 | } | |
4280 | } else | |
4281 | cp->sg_count = (u8) use_sg; | |
4282 | ||
c349775e ST |
4283 | enqueue_cmd_and_start_io(h, c); |
4284 | return 0; | |
4285 | } | |
4286 | ||
4287 | /* | |
4288 | * Queue a command to the correct I/O accelerator path. | |
4289 | */ | |
4290 | static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h, | |
4291 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, | |
03383736 | 4292 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk) |
c349775e | 4293 | { |
03383736 DB |
4294 | /* Try to honor the device's queue depth */ |
4295 | if (atomic_inc_return(&phys_disk->ioaccel_cmds_out) > | |
4296 | phys_disk->queue_depth) { | |
4297 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
4298 | return IO_ACCEL_INELIGIBLE; | |
4299 | } | |
c349775e ST |
4300 | if (h->transMethod & CFGTBL_Trans_io_accel1) |
4301 | return hpsa_scsi_ioaccel1_queue_command(h, c, ioaccel_handle, | |
03383736 DB |
4302 | cdb, cdb_len, scsi3addr, |
4303 | phys_disk); | |
c349775e ST |
4304 | else |
4305 | return hpsa_scsi_ioaccel2_queue_command(h, c, ioaccel_handle, | |
03383736 DB |
4306 | cdb, cdb_len, scsi3addr, |
4307 | phys_disk); | |
c349775e ST |
4308 | } |
4309 | ||
6b80b18f ST |
4310 | static void raid_map_helper(struct raid_map_data *map, |
4311 | int offload_to_mirror, u32 *map_index, u32 *current_group) | |
4312 | { | |
4313 | if (offload_to_mirror == 0) { | |
4314 | /* use physical disk in the first mirrored group. */ | |
2b08b3e9 | 4315 | *map_index %= le16_to_cpu(map->data_disks_per_row); |
6b80b18f ST |
4316 | return; |
4317 | } | |
4318 | do { | |
4319 | /* determine mirror group that *map_index indicates */ | |
2b08b3e9 DB |
4320 | *current_group = *map_index / |
4321 | le16_to_cpu(map->data_disks_per_row); | |
6b80b18f ST |
4322 | if (offload_to_mirror == *current_group) |
4323 | continue; | |
2b08b3e9 | 4324 | if (*current_group < le16_to_cpu(map->layout_map_count) - 1) { |
6b80b18f | 4325 | /* select map index from next group */ |
2b08b3e9 | 4326 | *map_index += le16_to_cpu(map->data_disks_per_row); |
6b80b18f ST |
4327 | (*current_group)++; |
4328 | } else { | |
4329 | /* select map index from first group */ | |
2b08b3e9 | 4330 | *map_index %= le16_to_cpu(map->data_disks_per_row); |
6b80b18f ST |
4331 | *current_group = 0; |
4332 | } | |
4333 | } while (offload_to_mirror != *current_group); | |
4334 | } | |
4335 | ||
283b4a9b SC |
4336 | /* |
4337 | * Attempt to perform offload RAID mapping for a logical volume I/O. | |
4338 | */ | |
4339 | static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h, | |
4340 | struct CommandList *c) | |
4341 | { | |
4342 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4343 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4344 | struct raid_map_data *map = &dev->raid_map; | |
4345 | struct raid_map_disk_data *dd = &map->data[0]; | |
4346 | int is_write = 0; | |
4347 | u32 map_index; | |
4348 | u64 first_block, last_block; | |
4349 | u32 block_cnt; | |
4350 | u32 blocks_per_row; | |
4351 | u64 first_row, last_row; | |
4352 | u32 first_row_offset, last_row_offset; | |
4353 | u32 first_column, last_column; | |
6b80b18f ST |
4354 | u64 r0_first_row, r0_last_row; |
4355 | u32 r5or6_blocks_per_row; | |
4356 | u64 r5or6_first_row, r5or6_last_row; | |
4357 | u32 r5or6_first_row_offset, r5or6_last_row_offset; | |
4358 | u32 r5or6_first_column, r5or6_last_column; | |
4359 | u32 total_disks_per_row; | |
4360 | u32 stripesize; | |
4361 | u32 first_group, last_group, current_group; | |
283b4a9b SC |
4362 | u32 map_row; |
4363 | u32 disk_handle; | |
4364 | u64 disk_block; | |
4365 | u32 disk_block_cnt; | |
4366 | u8 cdb[16]; | |
4367 | u8 cdb_len; | |
2b08b3e9 | 4368 | u16 strip_size; |
283b4a9b SC |
4369 | #if BITS_PER_LONG == 32 |
4370 | u64 tmpdiv; | |
4371 | #endif | |
6b80b18f | 4372 | int offload_to_mirror; |
283b4a9b | 4373 | |
283b4a9b SC |
4374 | /* check for valid opcode, get LBA and block count */ |
4375 | switch (cmd->cmnd[0]) { | |
4376 | case WRITE_6: | |
4377 | is_write = 1; | |
4378 | case READ_6: | |
4379 | first_block = | |
4380 | (((u64) cmd->cmnd[2]) << 8) | | |
4381 | cmd->cmnd[3]; | |
4382 | block_cnt = cmd->cmnd[4]; | |
3fa89a04 SC |
4383 | if (block_cnt == 0) |
4384 | block_cnt = 256; | |
283b4a9b SC |
4385 | break; |
4386 | case WRITE_10: | |
4387 | is_write = 1; | |
4388 | case READ_10: | |
4389 | first_block = | |
4390 | (((u64) cmd->cmnd[2]) << 24) | | |
4391 | (((u64) cmd->cmnd[3]) << 16) | | |
4392 | (((u64) cmd->cmnd[4]) << 8) | | |
4393 | cmd->cmnd[5]; | |
4394 | block_cnt = | |
4395 | (((u32) cmd->cmnd[7]) << 8) | | |
4396 | cmd->cmnd[8]; | |
4397 | break; | |
4398 | case WRITE_12: | |
4399 | is_write = 1; | |
4400 | case READ_12: | |
4401 | first_block = | |
4402 | (((u64) cmd->cmnd[2]) << 24) | | |
4403 | (((u64) cmd->cmnd[3]) << 16) | | |
4404 | (((u64) cmd->cmnd[4]) << 8) | | |
4405 | cmd->cmnd[5]; | |
4406 | block_cnt = | |
4407 | (((u32) cmd->cmnd[6]) << 24) | | |
4408 | (((u32) cmd->cmnd[7]) << 16) | | |
4409 | (((u32) cmd->cmnd[8]) << 8) | | |
4410 | cmd->cmnd[9]; | |
4411 | break; | |
4412 | case WRITE_16: | |
4413 | is_write = 1; | |
4414 | case READ_16: | |
4415 | first_block = | |
4416 | (((u64) cmd->cmnd[2]) << 56) | | |
4417 | (((u64) cmd->cmnd[3]) << 48) | | |
4418 | (((u64) cmd->cmnd[4]) << 40) | | |
4419 | (((u64) cmd->cmnd[5]) << 32) | | |
4420 | (((u64) cmd->cmnd[6]) << 24) | | |
4421 | (((u64) cmd->cmnd[7]) << 16) | | |
4422 | (((u64) cmd->cmnd[8]) << 8) | | |
4423 | cmd->cmnd[9]; | |
4424 | block_cnt = | |
4425 | (((u32) cmd->cmnd[10]) << 24) | | |
4426 | (((u32) cmd->cmnd[11]) << 16) | | |
4427 | (((u32) cmd->cmnd[12]) << 8) | | |
4428 | cmd->cmnd[13]; | |
4429 | break; | |
4430 | default: | |
4431 | return IO_ACCEL_INELIGIBLE; /* process via normal I/O path */ | |
4432 | } | |
283b4a9b SC |
4433 | last_block = first_block + block_cnt - 1; |
4434 | ||
4435 | /* check for write to non-RAID-0 */ | |
4436 | if (is_write && dev->raid_level != 0) | |
4437 | return IO_ACCEL_INELIGIBLE; | |
4438 | ||
4439 | /* check for invalid block or wraparound */ | |
2b08b3e9 DB |
4440 | if (last_block >= le64_to_cpu(map->volume_blk_cnt) || |
4441 | last_block < first_block) | |
283b4a9b SC |
4442 | return IO_ACCEL_INELIGIBLE; |
4443 | ||
4444 | /* calculate stripe information for the request */ | |
2b08b3e9 DB |
4445 | blocks_per_row = le16_to_cpu(map->data_disks_per_row) * |
4446 | le16_to_cpu(map->strip_size); | |
4447 | strip_size = le16_to_cpu(map->strip_size); | |
283b4a9b SC |
4448 | #if BITS_PER_LONG == 32 |
4449 | tmpdiv = first_block; | |
4450 | (void) do_div(tmpdiv, blocks_per_row); | |
4451 | first_row = tmpdiv; | |
4452 | tmpdiv = last_block; | |
4453 | (void) do_div(tmpdiv, blocks_per_row); | |
4454 | last_row = tmpdiv; | |
4455 | first_row_offset = (u32) (first_block - (first_row * blocks_per_row)); | |
4456 | last_row_offset = (u32) (last_block - (last_row * blocks_per_row)); | |
4457 | tmpdiv = first_row_offset; | |
2b08b3e9 | 4458 | (void) do_div(tmpdiv, strip_size); |
283b4a9b SC |
4459 | first_column = tmpdiv; |
4460 | tmpdiv = last_row_offset; | |
2b08b3e9 | 4461 | (void) do_div(tmpdiv, strip_size); |
283b4a9b SC |
4462 | last_column = tmpdiv; |
4463 | #else | |
4464 | first_row = first_block / blocks_per_row; | |
4465 | last_row = last_block / blocks_per_row; | |
4466 | first_row_offset = (u32) (first_block - (first_row * blocks_per_row)); | |
4467 | last_row_offset = (u32) (last_block - (last_row * blocks_per_row)); | |
2b08b3e9 DB |
4468 | first_column = first_row_offset / strip_size; |
4469 | last_column = last_row_offset / strip_size; | |
283b4a9b SC |
4470 | #endif |
4471 | ||
4472 | /* if this isn't a single row/column then give to the controller */ | |
4473 | if ((first_row != last_row) || (first_column != last_column)) | |
4474 | return IO_ACCEL_INELIGIBLE; | |
4475 | ||
4476 | /* proceeding with driver mapping */ | |
2b08b3e9 DB |
4477 | total_disks_per_row = le16_to_cpu(map->data_disks_per_row) + |
4478 | le16_to_cpu(map->metadata_disks_per_row); | |
283b4a9b | 4479 | map_row = ((u32)(first_row >> map->parity_rotation_shift)) % |
2b08b3e9 | 4480 | le16_to_cpu(map->row_cnt); |
6b80b18f ST |
4481 | map_index = (map_row * total_disks_per_row) + first_column; |
4482 | ||
4483 | switch (dev->raid_level) { | |
4484 | case HPSA_RAID_0: | |
4485 | break; /* nothing special to do */ | |
4486 | case HPSA_RAID_1: | |
4487 | /* Handles load balance across RAID 1 members. | |
4488 | * (2-drive R1 and R10 with even # of drives.) | |
4489 | * Appropriate for SSDs, not optimal for HDDs | |
283b4a9b | 4490 | */ |
2b08b3e9 | 4491 | BUG_ON(le16_to_cpu(map->layout_map_count) != 2); |
283b4a9b | 4492 | if (dev->offload_to_mirror) |
2b08b3e9 | 4493 | map_index += le16_to_cpu(map->data_disks_per_row); |
283b4a9b | 4494 | dev->offload_to_mirror = !dev->offload_to_mirror; |
6b80b18f ST |
4495 | break; |
4496 | case HPSA_RAID_ADM: | |
4497 | /* Handles N-way mirrors (R1-ADM) | |
4498 | * and R10 with # of drives divisible by 3.) | |
4499 | */ | |
2b08b3e9 | 4500 | BUG_ON(le16_to_cpu(map->layout_map_count) != 3); |
6b80b18f ST |
4501 | |
4502 | offload_to_mirror = dev->offload_to_mirror; | |
4503 | raid_map_helper(map, offload_to_mirror, | |
4504 | &map_index, ¤t_group); | |
4505 | /* set mirror group to use next time */ | |
4506 | offload_to_mirror = | |
2b08b3e9 DB |
4507 | (offload_to_mirror >= |
4508 | le16_to_cpu(map->layout_map_count) - 1) | |
6b80b18f | 4509 | ? 0 : offload_to_mirror + 1; |
6b80b18f ST |
4510 | dev->offload_to_mirror = offload_to_mirror; |
4511 | /* Avoid direct use of dev->offload_to_mirror within this | |
4512 | * function since multiple threads might simultaneously | |
4513 | * increment it beyond the range of dev->layout_map_count -1. | |
4514 | */ | |
4515 | break; | |
4516 | case HPSA_RAID_5: | |
4517 | case HPSA_RAID_6: | |
2b08b3e9 | 4518 | if (le16_to_cpu(map->layout_map_count) <= 1) |
6b80b18f ST |
4519 | break; |
4520 | ||
4521 | /* Verify first and last block are in same RAID group */ | |
4522 | r5or6_blocks_per_row = | |
2b08b3e9 DB |
4523 | le16_to_cpu(map->strip_size) * |
4524 | le16_to_cpu(map->data_disks_per_row); | |
6b80b18f | 4525 | BUG_ON(r5or6_blocks_per_row == 0); |
2b08b3e9 DB |
4526 | stripesize = r5or6_blocks_per_row * |
4527 | le16_to_cpu(map->layout_map_count); | |
6b80b18f ST |
4528 | #if BITS_PER_LONG == 32 |
4529 | tmpdiv = first_block; | |
4530 | first_group = do_div(tmpdiv, stripesize); | |
4531 | tmpdiv = first_group; | |
4532 | (void) do_div(tmpdiv, r5or6_blocks_per_row); | |
4533 | first_group = tmpdiv; | |
4534 | tmpdiv = last_block; | |
4535 | last_group = do_div(tmpdiv, stripesize); | |
4536 | tmpdiv = last_group; | |
4537 | (void) do_div(tmpdiv, r5or6_blocks_per_row); | |
4538 | last_group = tmpdiv; | |
4539 | #else | |
4540 | first_group = (first_block % stripesize) / r5or6_blocks_per_row; | |
4541 | last_group = (last_block % stripesize) / r5or6_blocks_per_row; | |
6b80b18f | 4542 | #endif |
000ff7c2 | 4543 | if (first_group != last_group) |
6b80b18f ST |
4544 | return IO_ACCEL_INELIGIBLE; |
4545 | ||
4546 | /* Verify request is in a single row of RAID 5/6 */ | |
4547 | #if BITS_PER_LONG == 32 | |
4548 | tmpdiv = first_block; | |
4549 | (void) do_div(tmpdiv, stripesize); | |
4550 | first_row = r5or6_first_row = r0_first_row = tmpdiv; | |
4551 | tmpdiv = last_block; | |
4552 | (void) do_div(tmpdiv, stripesize); | |
4553 | r5or6_last_row = r0_last_row = tmpdiv; | |
4554 | #else | |
4555 | first_row = r5or6_first_row = r0_first_row = | |
4556 | first_block / stripesize; | |
4557 | r5or6_last_row = r0_last_row = last_block / stripesize; | |
4558 | #endif | |
4559 | if (r5or6_first_row != r5or6_last_row) | |
4560 | return IO_ACCEL_INELIGIBLE; | |
4561 | ||
4562 | ||
4563 | /* Verify request is in a single column */ | |
4564 | #if BITS_PER_LONG == 32 | |
4565 | tmpdiv = first_block; | |
4566 | first_row_offset = do_div(tmpdiv, stripesize); | |
4567 | tmpdiv = first_row_offset; | |
4568 | first_row_offset = (u32) do_div(tmpdiv, r5or6_blocks_per_row); | |
4569 | r5or6_first_row_offset = first_row_offset; | |
4570 | tmpdiv = last_block; | |
4571 | r5or6_last_row_offset = do_div(tmpdiv, stripesize); | |
4572 | tmpdiv = r5or6_last_row_offset; | |
4573 | r5or6_last_row_offset = do_div(tmpdiv, r5or6_blocks_per_row); | |
4574 | tmpdiv = r5or6_first_row_offset; | |
4575 | (void) do_div(tmpdiv, map->strip_size); | |
4576 | first_column = r5or6_first_column = tmpdiv; | |
4577 | tmpdiv = r5or6_last_row_offset; | |
4578 | (void) do_div(tmpdiv, map->strip_size); | |
4579 | r5or6_last_column = tmpdiv; | |
4580 | #else | |
4581 | first_row_offset = r5or6_first_row_offset = | |
4582 | (u32)((first_block % stripesize) % | |
4583 | r5or6_blocks_per_row); | |
4584 | ||
4585 | r5or6_last_row_offset = | |
4586 | (u32)((last_block % stripesize) % | |
4587 | r5or6_blocks_per_row); | |
4588 | ||
4589 | first_column = r5or6_first_column = | |
2b08b3e9 | 4590 | r5or6_first_row_offset / le16_to_cpu(map->strip_size); |
6b80b18f | 4591 | r5or6_last_column = |
2b08b3e9 | 4592 | r5or6_last_row_offset / le16_to_cpu(map->strip_size); |
6b80b18f ST |
4593 | #endif |
4594 | if (r5or6_first_column != r5or6_last_column) | |
4595 | return IO_ACCEL_INELIGIBLE; | |
4596 | ||
4597 | /* Request is eligible */ | |
4598 | map_row = ((u32)(first_row >> map->parity_rotation_shift)) % | |
2b08b3e9 | 4599 | le16_to_cpu(map->row_cnt); |
6b80b18f ST |
4600 | |
4601 | map_index = (first_group * | |
2b08b3e9 | 4602 | (le16_to_cpu(map->row_cnt) * total_disks_per_row)) + |
6b80b18f ST |
4603 | (map_row * total_disks_per_row) + first_column; |
4604 | break; | |
4605 | default: | |
4606 | return IO_ACCEL_INELIGIBLE; | |
283b4a9b | 4607 | } |
6b80b18f | 4608 | |
07543e0c SC |
4609 | if (unlikely(map_index >= RAID_MAP_MAX_ENTRIES)) |
4610 | return IO_ACCEL_INELIGIBLE; | |
4611 | ||
03383736 DB |
4612 | c->phys_disk = dev->phys_disk[map_index]; |
4613 | ||
283b4a9b | 4614 | disk_handle = dd[map_index].ioaccel_handle; |
2b08b3e9 DB |
4615 | disk_block = le64_to_cpu(map->disk_starting_blk) + |
4616 | first_row * le16_to_cpu(map->strip_size) + | |
4617 | (first_row_offset - first_column * | |
4618 | le16_to_cpu(map->strip_size)); | |
283b4a9b SC |
4619 | disk_block_cnt = block_cnt; |
4620 | ||
4621 | /* handle differing logical/physical block sizes */ | |
4622 | if (map->phys_blk_shift) { | |
4623 | disk_block <<= map->phys_blk_shift; | |
4624 | disk_block_cnt <<= map->phys_blk_shift; | |
4625 | } | |
4626 | BUG_ON(disk_block_cnt > 0xffff); | |
4627 | ||
4628 | /* build the new CDB for the physical disk I/O */ | |
4629 | if (disk_block > 0xffffffff) { | |
4630 | cdb[0] = is_write ? WRITE_16 : READ_16; | |
4631 | cdb[1] = 0; | |
4632 | cdb[2] = (u8) (disk_block >> 56); | |
4633 | cdb[3] = (u8) (disk_block >> 48); | |
4634 | cdb[4] = (u8) (disk_block >> 40); | |
4635 | cdb[5] = (u8) (disk_block >> 32); | |
4636 | cdb[6] = (u8) (disk_block >> 24); | |
4637 | cdb[7] = (u8) (disk_block >> 16); | |
4638 | cdb[8] = (u8) (disk_block >> 8); | |
4639 | cdb[9] = (u8) (disk_block); | |
4640 | cdb[10] = (u8) (disk_block_cnt >> 24); | |
4641 | cdb[11] = (u8) (disk_block_cnt >> 16); | |
4642 | cdb[12] = (u8) (disk_block_cnt >> 8); | |
4643 | cdb[13] = (u8) (disk_block_cnt); | |
4644 | cdb[14] = 0; | |
4645 | cdb[15] = 0; | |
4646 | cdb_len = 16; | |
4647 | } else { | |
4648 | cdb[0] = is_write ? WRITE_10 : READ_10; | |
4649 | cdb[1] = 0; | |
4650 | cdb[2] = (u8) (disk_block >> 24); | |
4651 | cdb[3] = (u8) (disk_block >> 16); | |
4652 | cdb[4] = (u8) (disk_block >> 8); | |
4653 | cdb[5] = (u8) (disk_block); | |
4654 | cdb[6] = 0; | |
4655 | cdb[7] = (u8) (disk_block_cnt >> 8); | |
4656 | cdb[8] = (u8) (disk_block_cnt); | |
4657 | cdb[9] = 0; | |
4658 | cdb_len = 10; | |
4659 | } | |
4660 | return hpsa_scsi_ioaccel_queue_command(h, c, disk_handle, cdb, cdb_len, | |
03383736 DB |
4661 | dev->scsi3addr, |
4662 | dev->phys_disk[map_index]); | |
283b4a9b SC |
4663 | } |
4664 | ||
25163bd5 WS |
4665 | /* |
4666 | * Submit commands down the "normal" RAID stack path | |
4667 | * All callers to hpsa_ciss_submit must check lockup_detected | |
4668 | * beforehand, before (opt.) and after calling cmd_alloc | |
4669 | */ | |
574f05d3 SC |
4670 | static int hpsa_ciss_submit(struct ctlr_info *h, |
4671 | struct CommandList *c, struct scsi_cmnd *cmd, | |
4672 | unsigned char scsi3addr[]) | |
edd16368 | 4673 | { |
edd16368 | 4674 | cmd->host_scribble = (unsigned char *) c; |
edd16368 SC |
4675 | c->cmd_type = CMD_SCSI; |
4676 | c->scsi_cmd = cmd; | |
4677 | c->Header.ReplyQueue = 0; /* unused in simple mode */ | |
4678 | memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8); | |
f2405db8 | 4679 | c->Header.tag = cpu_to_le64((c->cmdindex << DIRECT_LOOKUP_SHIFT)); |
edd16368 SC |
4680 | |
4681 | /* Fill in the request block... */ | |
4682 | ||
4683 | c->Request.Timeout = 0; | |
edd16368 SC |
4684 | BUG_ON(cmd->cmd_len > sizeof(c->Request.CDB)); |
4685 | c->Request.CDBLen = cmd->cmd_len; | |
4686 | memcpy(c->Request.CDB, cmd->cmnd, cmd->cmd_len); | |
edd16368 SC |
4687 | switch (cmd->sc_data_direction) { |
4688 | case DMA_TO_DEVICE: | |
a505b86f SC |
4689 | c->Request.type_attr_dir = |
4690 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_WRITE); | |
edd16368 SC |
4691 | break; |
4692 | case DMA_FROM_DEVICE: | |
a505b86f SC |
4693 | c->Request.type_attr_dir = |
4694 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_READ); | |
edd16368 SC |
4695 | break; |
4696 | case DMA_NONE: | |
a505b86f SC |
4697 | c->Request.type_attr_dir = |
4698 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_NONE); | |
edd16368 SC |
4699 | break; |
4700 | case DMA_BIDIRECTIONAL: | |
4701 | /* This can happen if a buggy application does a scsi passthru | |
4702 | * and sets both inlen and outlen to non-zero. ( see | |
4703 | * ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() ) | |
4704 | */ | |
4705 | ||
a505b86f SC |
4706 | c->Request.type_attr_dir = |
4707 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_RSVD); | |
edd16368 SC |
4708 | /* This is technically wrong, and hpsa controllers should |
4709 | * reject it with CMD_INVALID, which is the most correct | |
4710 | * response, but non-fibre backends appear to let it | |
4711 | * slide by, and give the same results as if this field | |
4712 | * were set correctly. Either way is acceptable for | |
4713 | * our purposes here. | |
4714 | */ | |
4715 | ||
4716 | break; | |
4717 | ||
4718 | default: | |
4719 | dev_err(&h->pdev->dev, "unknown data direction: %d\n", | |
4720 | cmd->sc_data_direction); | |
4721 | BUG(); | |
4722 | break; | |
4723 | } | |
4724 | ||
33a2ffce | 4725 | if (hpsa_scatter_gather(h, c, cmd) < 0) { /* Fill SG list */ |
73153fe5 | 4726 | hpsa_cmd_resolve_and_free(h, c); |
edd16368 SC |
4727 | return SCSI_MLQUEUE_HOST_BUSY; |
4728 | } | |
4729 | enqueue_cmd_and_start_io(h, c); | |
4730 | /* the cmd'll come back via intr handler in complete_scsi_command() */ | |
4731 | return 0; | |
4732 | } | |
4733 | ||
360c73bd SC |
4734 | static void hpsa_cmd_init(struct ctlr_info *h, int index, |
4735 | struct CommandList *c) | |
4736 | { | |
4737 | dma_addr_t cmd_dma_handle, err_dma_handle; | |
4738 | ||
4739 | /* Zero out all of commandlist except the last field, refcount */ | |
4740 | memset(c, 0, offsetof(struct CommandList, refcount)); | |
4741 | c->Header.tag = cpu_to_le64((u64) (index << DIRECT_LOOKUP_SHIFT)); | |
4742 | cmd_dma_handle = h->cmd_pool_dhandle + index * sizeof(*c); | |
4743 | c->err_info = h->errinfo_pool + index; | |
4744 | memset(c->err_info, 0, sizeof(*c->err_info)); | |
4745 | err_dma_handle = h->errinfo_pool_dhandle | |
4746 | + index * sizeof(*c->err_info); | |
4747 | c->cmdindex = index; | |
4748 | c->busaddr = (u32) cmd_dma_handle; | |
4749 | c->ErrDesc.Addr = cpu_to_le64((u64) err_dma_handle); | |
4750 | c->ErrDesc.Len = cpu_to_le32((u32) sizeof(*c->err_info)); | |
4751 | c->h = h; | |
a58e7e53 | 4752 | c->scsi_cmd = SCSI_CMD_IDLE; |
360c73bd SC |
4753 | } |
4754 | ||
4755 | static void hpsa_preinitialize_commands(struct ctlr_info *h) | |
4756 | { | |
4757 | int i; | |
4758 | ||
4759 | for (i = 0; i < h->nr_cmds; i++) { | |
4760 | struct CommandList *c = h->cmd_pool + i; | |
4761 | ||
4762 | hpsa_cmd_init(h, i, c); | |
4763 | atomic_set(&c->refcount, 0); | |
4764 | } | |
4765 | } | |
4766 | ||
4767 | static inline void hpsa_cmd_partial_init(struct ctlr_info *h, int index, | |
4768 | struct CommandList *c) | |
4769 | { | |
4770 | dma_addr_t cmd_dma_handle = h->cmd_pool_dhandle + index * sizeof(*c); | |
4771 | ||
73153fe5 WS |
4772 | BUG_ON(c->cmdindex != index); |
4773 | ||
360c73bd SC |
4774 | memset(c->Request.CDB, 0, sizeof(c->Request.CDB)); |
4775 | memset(c->err_info, 0, sizeof(*c->err_info)); | |
4776 | c->busaddr = (u32) cmd_dma_handle; | |
4777 | } | |
4778 | ||
592a0ad5 WS |
4779 | static int hpsa_ioaccel_submit(struct ctlr_info *h, |
4780 | struct CommandList *c, struct scsi_cmnd *cmd, | |
4781 | unsigned char *scsi3addr) | |
4782 | { | |
4783 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4784 | int rc = IO_ACCEL_INELIGIBLE; | |
4785 | ||
4786 | cmd->host_scribble = (unsigned char *) c; | |
4787 | ||
4788 | if (dev->offload_enabled) { | |
4789 | hpsa_cmd_init(h, c->cmdindex, c); | |
4790 | c->cmd_type = CMD_SCSI; | |
4791 | c->scsi_cmd = cmd; | |
4792 | rc = hpsa_scsi_ioaccel_raid_map(h, c); | |
4793 | if (rc < 0) /* scsi_dma_map failed. */ | |
4794 | rc = SCSI_MLQUEUE_HOST_BUSY; | |
a3144e0b | 4795 | } else if (dev->hba_ioaccel_enabled) { |
592a0ad5 WS |
4796 | hpsa_cmd_init(h, c->cmdindex, c); |
4797 | c->cmd_type = CMD_SCSI; | |
4798 | c->scsi_cmd = cmd; | |
4799 | rc = hpsa_scsi_ioaccel_direct_map(h, c); | |
4800 | if (rc < 0) /* scsi_dma_map failed. */ | |
4801 | rc = SCSI_MLQUEUE_HOST_BUSY; | |
4802 | } | |
4803 | return rc; | |
4804 | } | |
4805 | ||
080ef1cc DB |
4806 | static void hpsa_command_resubmit_worker(struct work_struct *work) |
4807 | { | |
4808 | struct scsi_cmnd *cmd; | |
4809 | struct hpsa_scsi_dev_t *dev; | |
8a0ff92c | 4810 | struct CommandList *c = container_of(work, struct CommandList, work); |
080ef1cc DB |
4811 | |
4812 | cmd = c->scsi_cmd; | |
4813 | dev = cmd->device->hostdata; | |
4814 | if (!dev) { | |
4815 | cmd->result = DID_NO_CONNECT << 16; | |
8a0ff92c | 4816 | return hpsa_cmd_free_and_done(c->h, c, cmd); |
080ef1cc | 4817 | } |
d604f533 WS |
4818 | if (c->reset_pending) |
4819 | return hpsa_cmd_resolve_and_free(c->h, c); | |
a58e7e53 WS |
4820 | if (c->abort_pending) |
4821 | return hpsa_cmd_abort_and_free(c->h, c, cmd); | |
592a0ad5 WS |
4822 | if (c->cmd_type == CMD_IOACCEL2) { |
4823 | struct ctlr_info *h = c->h; | |
4824 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
4825 | int rc; | |
4826 | ||
4827 | if (c2->error_data.serv_response == | |
4828 | IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL) { | |
4829 | rc = hpsa_ioaccel_submit(h, c, cmd, dev->scsi3addr); | |
4830 | if (rc == 0) | |
4831 | return; | |
4832 | if (rc == SCSI_MLQUEUE_HOST_BUSY) { | |
4833 | /* | |
4834 | * If we get here, it means dma mapping failed. | |
4835 | * Try again via scsi mid layer, which will | |
4836 | * then get SCSI_MLQUEUE_HOST_BUSY. | |
4837 | */ | |
4838 | cmd->result = DID_IMM_RETRY << 16; | |
8a0ff92c | 4839 | return hpsa_cmd_free_and_done(h, c, cmd); |
592a0ad5 WS |
4840 | } |
4841 | /* else, fall thru and resubmit down CISS path */ | |
4842 | } | |
4843 | } | |
360c73bd | 4844 | hpsa_cmd_partial_init(c->h, c->cmdindex, c); |
080ef1cc DB |
4845 | if (hpsa_ciss_submit(c->h, c, cmd, dev->scsi3addr)) { |
4846 | /* | |
4847 | * If we get here, it means dma mapping failed. Try | |
4848 | * again via scsi mid layer, which will then get | |
4849 | * SCSI_MLQUEUE_HOST_BUSY. | |
592a0ad5 WS |
4850 | * |
4851 | * hpsa_ciss_submit will have already freed c | |
4852 | * if it encountered a dma mapping failure. | |
080ef1cc DB |
4853 | */ |
4854 | cmd->result = DID_IMM_RETRY << 16; | |
4855 | cmd->scsi_done(cmd); | |
4856 | } | |
4857 | } | |
4858 | ||
574f05d3 SC |
4859 | /* Running in struct Scsi_Host->host_lock less mode */ |
4860 | static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd) | |
4861 | { | |
4862 | struct ctlr_info *h; | |
4863 | struct hpsa_scsi_dev_t *dev; | |
4864 | unsigned char scsi3addr[8]; | |
4865 | struct CommandList *c; | |
4866 | int rc = 0; | |
4867 | ||
4868 | /* Get the ptr to our adapter structure out of cmd->host. */ | |
4869 | h = sdev_to_hba(cmd->device); | |
73153fe5 WS |
4870 | |
4871 | BUG_ON(cmd->request->tag < 0); | |
4872 | ||
574f05d3 SC |
4873 | dev = cmd->device->hostdata; |
4874 | if (!dev) { | |
4875 | cmd->result = DID_NO_CONNECT << 16; | |
4876 | cmd->scsi_done(cmd); | |
4877 | return 0; | |
4878 | } | |
574f05d3 | 4879 | |
73153fe5 | 4880 | memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr)); |
bf43caf3 | 4881 | |
407863cb | 4882 | if (unlikely(lockup_detected(h))) { |
25163bd5 | 4883 | cmd->result = DID_NO_CONNECT << 16; |
407863cb SC |
4884 | cmd->scsi_done(cmd); |
4885 | return 0; | |
4886 | } | |
73153fe5 | 4887 | c = cmd_tagged_alloc(h, cmd); |
574f05d3 | 4888 | |
407863cb SC |
4889 | /* |
4890 | * Call alternate submit routine for I/O accelerated commands. | |
574f05d3 SC |
4891 | * Retries always go down the normal I/O path. |
4892 | */ | |
4893 | if (likely(cmd->retries == 0 && | |
4894 | cmd->request->cmd_type == REQ_TYPE_FS && | |
4895 | h->acciopath_status)) { | |
592a0ad5 WS |
4896 | rc = hpsa_ioaccel_submit(h, c, cmd, scsi3addr); |
4897 | if (rc == 0) | |
4898 | return 0; | |
4899 | if (rc == SCSI_MLQUEUE_HOST_BUSY) { | |
73153fe5 | 4900 | hpsa_cmd_resolve_and_free(h, c); |
592a0ad5 | 4901 | return SCSI_MLQUEUE_HOST_BUSY; |
574f05d3 SC |
4902 | } |
4903 | } | |
4904 | return hpsa_ciss_submit(h, c, cmd, scsi3addr); | |
4905 | } | |
4906 | ||
8ebc9248 | 4907 | static void hpsa_scan_complete(struct ctlr_info *h) |
5f389360 SC |
4908 | { |
4909 | unsigned long flags; | |
4910 | ||
8ebc9248 WS |
4911 | spin_lock_irqsave(&h->scan_lock, flags); |
4912 | h->scan_finished = 1; | |
4913 | wake_up_all(&h->scan_wait_queue); | |
4914 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
5f389360 SC |
4915 | } |
4916 | ||
a08a8471 SC |
4917 | static void hpsa_scan_start(struct Scsi_Host *sh) |
4918 | { | |
4919 | struct ctlr_info *h = shost_to_hba(sh); | |
4920 | unsigned long flags; | |
4921 | ||
8ebc9248 WS |
4922 | /* |
4923 | * Don't let rescans be initiated on a controller known to be locked | |
4924 | * up. If the controller locks up *during* a rescan, that thread is | |
4925 | * probably hosed, but at least we can prevent new rescan threads from | |
4926 | * piling up on a locked up controller. | |
4927 | */ | |
4928 | if (unlikely(lockup_detected(h))) | |
4929 | return hpsa_scan_complete(h); | |
5f389360 | 4930 | |
a08a8471 SC |
4931 | /* wait until any scan already in progress is finished. */ |
4932 | while (1) { | |
4933 | spin_lock_irqsave(&h->scan_lock, flags); | |
4934 | if (h->scan_finished) | |
4935 | break; | |
4936 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
4937 | wait_event(h->scan_wait_queue, h->scan_finished); | |
4938 | /* Note: We don't need to worry about a race between this | |
4939 | * thread and driver unload because the midlayer will | |
4940 | * have incremented the reference count, so unload won't | |
4941 | * happen if we're in here. | |
4942 | */ | |
4943 | } | |
4944 | h->scan_finished = 0; /* mark scan as in progress */ | |
4945 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
4946 | ||
8ebc9248 WS |
4947 | if (unlikely(lockup_detected(h))) |
4948 | return hpsa_scan_complete(h); | |
5f389360 | 4949 | |
a08a8471 SC |
4950 | hpsa_update_scsi_devices(h, h->scsi_host->host_no); |
4951 | ||
8ebc9248 | 4952 | hpsa_scan_complete(h); |
a08a8471 SC |
4953 | } |
4954 | ||
7c0a0229 DB |
4955 | static int hpsa_change_queue_depth(struct scsi_device *sdev, int qdepth) |
4956 | { | |
03383736 DB |
4957 | struct hpsa_scsi_dev_t *logical_drive = sdev->hostdata; |
4958 | ||
4959 | if (!logical_drive) | |
4960 | return -ENODEV; | |
7c0a0229 DB |
4961 | |
4962 | if (qdepth < 1) | |
4963 | qdepth = 1; | |
03383736 DB |
4964 | else if (qdepth > logical_drive->queue_depth) |
4965 | qdepth = logical_drive->queue_depth; | |
4966 | ||
4967 | return scsi_change_queue_depth(sdev, qdepth); | |
7c0a0229 DB |
4968 | } |
4969 | ||
a08a8471 SC |
4970 | static int hpsa_scan_finished(struct Scsi_Host *sh, |
4971 | unsigned long elapsed_time) | |
4972 | { | |
4973 | struct ctlr_info *h = shost_to_hba(sh); | |
4974 | unsigned long flags; | |
4975 | int finished; | |
4976 | ||
4977 | spin_lock_irqsave(&h->scan_lock, flags); | |
4978 | finished = h->scan_finished; | |
4979 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
4980 | return finished; | |
4981 | } | |
4982 | ||
2946e82b | 4983 | static int hpsa_scsi_host_alloc(struct ctlr_info *h) |
edd16368 | 4984 | { |
b705690d SC |
4985 | struct Scsi_Host *sh; |
4986 | int error; | |
edd16368 | 4987 | |
b705690d | 4988 | sh = scsi_host_alloc(&hpsa_driver_template, sizeof(h)); |
2946e82b RE |
4989 | if (sh == NULL) { |
4990 | dev_err(&h->pdev->dev, "scsi_host_alloc failed\n"); | |
4991 | return -ENOMEM; | |
4992 | } | |
b705690d SC |
4993 | |
4994 | sh->io_port = 0; | |
4995 | sh->n_io_port = 0; | |
4996 | sh->this_id = -1; | |
4997 | sh->max_channel = 3; | |
4998 | sh->max_cmd_len = MAX_COMMAND_SIZE; | |
4999 | sh->max_lun = HPSA_MAX_LUN; | |
5000 | sh->max_id = HPSA_MAX_LUN; | |
41ce4c35 | 5001 | sh->can_queue = h->nr_cmds - HPSA_NRESERVED_CMDS; |
03383736 | 5002 | sh->cmd_per_lun = sh->can_queue; |
b705690d | 5003 | sh->sg_tablesize = h->maxsgentries; |
b705690d SC |
5004 | sh->hostdata[0] = (unsigned long) h; |
5005 | sh->irq = h->intr[h->intr_mode]; | |
5006 | sh->unique_id = sh->irq; | |
73153fe5 WS |
5007 | error = scsi_init_shared_tag_map(sh, sh->can_queue); |
5008 | if (error) { | |
5009 | dev_err(&h->pdev->dev, | |
5010 | "%s: scsi_init_shared_tag_map failed for controller %d\n", | |
5011 | __func__, h->ctlr); | |
2946e82b RE |
5012 | scsi_host_put(sh); |
5013 | return error; | |
73153fe5 | 5014 | } |
2946e82b | 5015 | h->scsi_host = sh; |
b705690d | 5016 | return 0; |
2946e82b | 5017 | } |
b705690d | 5018 | |
2946e82b RE |
5019 | static int hpsa_scsi_add_host(struct ctlr_info *h) |
5020 | { | |
5021 | int rv; | |
5022 | ||
5023 | rv = scsi_add_host(h->scsi_host, &h->pdev->dev); | |
5024 | if (rv) { | |
5025 | dev_err(&h->pdev->dev, "scsi_add_host failed\n"); | |
5026 | return rv; | |
5027 | } | |
5028 | scsi_scan_host(h->scsi_host); | |
5029 | return 0; | |
edd16368 SC |
5030 | } |
5031 | ||
73153fe5 WS |
5032 | /* |
5033 | * The block layer has already gone to the trouble of picking out a unique, | |
5034 | * small-integer tag for this request. We use an offset from that value as | |
5035 | * an index to select our command block. (The offset allows us to reserve the | |
5036 | * low-numbered entries for our own uses.) | |
5037 | */ | |
5038 | static int hpsa_get_cmd_index(struct scsi_cmnd *scmd) | |
5039 | { | |
5040 | int idx = scmd->request->tag; | |
5041 | ||
5042 | if (idx < 0) | |
5043 | return idx; | |
5044 | ||
5045 | /* Offset to leave space for internal cmds. */ | |
5046 | return idx += HPSA_NRESERVED_CMDS; | |
5047 | } | |
5048 | ||
b69324ff WS |
5049 | /* |
5050 | * Send a TEST_UNIT_READY command to the specified LUN using the specified | |
5051 | * reply queue; returns zero if the unit is ready, and non-zero otherwise. | |
5052 | */ | |
5053 | static int hpsa_send_test_unit_ready(struct ctlr_info *h, | |
5054 | struct CommandList *c, unsigned char lunaddr[], | |
5055 | int reply_queue) | |
5056 | { | |
5057 | int rc; | |
5058 | ||
5059 | /* Send the Test Unit Ready, fill_cmd can't fail, no mapping */ | |
5060 | (void) fill_cmd(c, TEST_UNIT_READY, h, | |
5061 | NULL, 0, 0, lunaddr, TYPE_CMD); | |
5062 | rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT); | |
5063 | if (rc) | |
5064 | return rc; | |
5065 | /* no unmap needed here because no data xfer. */ | |
5066 | ||
5067 | /* Check if the unit is already ready. */ | |
5068 | if (c->err_info->CommandStatus == CMD_SUCCESS) | |
5069 | return 0; | |
5070 | ||
5071 | /* | |
5072 | * The first command sent after reset will receive "unit attention" to | |
5073 | * indicate that the LUN has been reset...this is actually what we're | |
5074 | * looking for (but, success is good too). | |
5075 | */ | |
5076 | if (c->err_info->CommandStatus == CMD_TARGET_STATUS && | |
5077 | c->err_info->ScsiStatus == SAM_STAT_CHECK_CONDITION && | |
5078 | (c->err_info->SenseInfo[2] == NO_SENSE || | |
5079 | c->err_info->SenseInfo[2] == UNIT_ATTENTION)) | |
5080 | return 0; | |
5081 | ||
5082 | return 1; | |
5083 | } | |
5084 | ||
5085 | /* | |
5086 | * Wait for a TEST_UNIT_READY command to complete, retrying as necessary; | |
5087 | * returns zero when the unit is ready, and non-zero when giving up. | |
5088 | */ | |
5089 | static int hpsa_wait_for_test_unit_ready(struct ctlr_info *h, | |
5090 | struct CommandList *c, | |
5091 | unsigned char lunaddr[], int reply_queue) | |
edd16368 | 5092 | { |
8919358e | 5093 | int rc; |
edd16368 SC |
5094 | int count = 0; |
5095 | int waittime = 1; /* seconds */ | |
edd16368 SC |
5096 | |
5097 | /* Send test unit ready until device ready, or give up. */ | |
b69324ff | 5098 | for (count = 0; count < HPSA_TUR_RETRY_LIMIT; count++) { |
edd16368 | 5099 | |
b69324ff WS |
5100 | /* |
5101 | * Wait for a bit. do this first, because if we send | |
edd16368 SC |
5102 | * the TUR right away, the reset will just abort it. |
5103 | */ | |
5104 | msleep(1000 * waittime); | |
b69324ff WS |
5105 | |
5106 | rc = hpsa_send_test_unit_ready(h, c, lunaddr, reply_queue); | |
5107 | if (!rc) | |
5108 | break; | |
edd16368 SC |
5109 | |
5110 | /* Increase wait time with each try, up to a point. */ | |
5111 | if (waittime < HPSA_MAX_WAIT_INTERVAL_SECS) | |
b69324ff | 5112 | waittime *= 2; |
edd16368 | 5113 | |
b69324ff WS |
5114 | dev_warn(&h->pdev->dev, |
5115 | "waiting %d secs for device to become ready.\n", | |
5116 | waittime); | |
5117 | } | |
edd16368 | 5118 | |
b69324ff WS |
5119 | return rc; |
5120 | } | |
edd16368 | 5121 | |
b69324ff WS |
5122 | static int wait_for_device_to_become_ready(struct ctlr_info *h, |
5123 | unsigned char lunaddr[], | |
5124 | int reply_queue) | |
5125 | { | |
5126 | int first_queue; | |
5127 | int last_queue; | |
5128 | int rq; | |
5129 | int rc = 0; | |
5130 | struct CommandList *c; | |
5131 | ||
5132 | c = cmd_alloc(h); | |
5133 | ||
5134 | /* | |
5135 | * If no specific reply queue was requested, then send the TUR | |
5136 | * repeatedly, requesting a reply on each reply queue; otherwise execute | |
5137 | * the loop exactly once using only the specified queue. | |
5138 | */ | |
5139 | if (reply_queue == DEFAULT_REPLY_QUEUE) { | |
5140 | first_queue = 0; | |
5141 | last_queue = h->nreply_queues - 1; | |
5142 | } else { | |
5143 | first_queue = reply_queue; | |
5144 | last_queue = reply_queue; | |
5145 | } | |
5146 | ||
5147 | for (rq = first_queue; rq <= last_queue; rq++) { | |
5148 | rc = hpsa_wait_for_test_unit_ready(h, c, lunaddr, rq); | |
5149 | if (rc) | |
edd16368 | 5150 | break; |
edd16368 SC |
5151 | } |
5152 | ||
5153 | if (rc) | |
5154 | dev_warn(&h->pdev->dev, "giving up on device.\n"); | |
5155 | else | |
5156 | dev_warn(&h->pdev->dev, "device is ready.\n"); | |
5157 | ||
45fcb86e | 5158 | cmd_free(h, c); |
edd16368 SC |
5159 | return rc; |
5160 | } | |
5161 | ||
5162 | /* Need at least one of these error handlers to keep ../scsi/hosts.c from | |
5163 | * complaining. Doing a host- or bus-reset can't do anything good here. | |
5164 | */ | |
5165 | static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd) | |
5166 | { | |
5167 | int rc; | |
5168 | struct ctlr_info *h; | |
5169 | struct hpsa_scsi_dev_t *dev; | |
2dc127bb | 5170 | char msg[48]; |
edd16368 SC |
5171 | |
5172 | /* find the controller to which the command to be aborted was sent */ | |
5173 | h = sdev_to_hba(scsicmd->device); | |
5174 | if (h == NULL) /* paranoia */ | |
5175 | return FAILED; | |
e345893b DB |
5176 | |
5177 | if (lockup_detected(h)) | |
5178 | return FAILED; | |
5179 | ||
edd16368 SC |
5180 | dev = scsicmd->device->hostdata; |
5181 | if (!dev) { | |
d604f533 | 5182 | dev_err(&h->pdev->dev, "%s: device lookup failed\n", __func__); |
edd16368 SC |
5183 | return FAILED; |
5184 | } | |
25163bd5 WS |
5185 | |
5186 | /* if controller locked up, we can guarantee command won't complete */ | |
5187 | if (lockup_detected(h)) { | |
2dc127bb DC |
5188 | snprintf(msg, sizeof(msg), |
5189 | "cmd %d RESET FAILED, lockup detected", | |
5190 | hpsa_get_cmd_index(scsicmd)); | |
73153fe5 | 5191 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); |
25163bd5 WS |
5192 | return FAILED; |
5193 | } | |
5194 | ||
5195 | /* this reset request might be the result of a lockup; check */ | |
5196 | if (detect_controller_lockup(h)) { | |
2dc127bb DC |
5197 | snprintf(msg, sizeof(msg), |
5198 | "cmd %d RESET FAILED, new lockup detected", | |
5199 | hpsa_get_cmd_index(scsicmd)); | |
73153fe5 | 5200 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); |
25163bd5 WS |
5201 | return FAILED; |
5202 | } | |
5203 | ||
d604f533 WS |
5204 | /* Do not attempt on controller */ |
5205 | if (is_hba_lunid(dev->scsi3addr)) | |
5206 | return SUCCESS; | |
5207 | ||
25163bd5 WS |
5208 | hpsa_show_dev_msg(KERN_WARNING, h, dev, "resetting"); |
5209 | ||
edd16368 | 5210 | /* send a reset to the SCSI LUN which the command was sent to */ |
d604f533 WS |
5211 | rc = hpsa_do_reset(h, dev, dev->scsi3addr, HPSA_RESET_TYPE_LUN, |
5212 | DEFAULT_REPLY_QUEUE); | |
2dc127bb DC |
5213 | snprintf(msg, sizeof(msg), "reset %s", |
5214 | rc == 0 ? "completed successfully" : "failed"); | |
d604f533 WS |
5215 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); |
5216 | return rc == 0 ? SUCCESS : FAILED; | |
edd16368 SC |
5217 | } |
5218 | ||
6cba3f19 SC |
5219 | static void swizzle_abort_tag(u8 *tag) |
5220 | { | |
5221 | u8 original_tag[8]; | |
5222 | ||
5223 | memcpy(original_tag, tag, 8); | |
5224 | tag[0] = original_tag[3]; | |
5225 | tag[1] = original_tag[2]; | |
5226 | tag[2] = original_tag[1]; | |
5227 | tag[3] = original_tag[0]; | |
5228 | tag[4] = original_tag[7]; | |
5229 | tag[5] = original_tag[6]; | |
5230 | tag[6] = original_tag[5]; | |
5231 | tag[7] = original_tag[4]; | |
5232 | } | |
5233 | ||
17eb87d2 | 5234 | static void hpsa_get_tag(struct ctlr_info *h, |
2b08b3e9 | 5235 | struct CommandList *c, __le32 *taglower, __le32 *tagupper) |
17eb87d2 | 5236 | { |
2b08b3e9 | 5237 | u64 tag; |
17eb87d2 ST |
5238 | if (c->cmd_type == CMD_IOACCEL1) { |
5239 | struct io_accel1_cmd *cm1 = (struct io_accel1_cmd *) | |
5240 | &h->ioaccel_cmd_pool[c->cmdindex]; | |
2b08b3e9 DB |
5241 | tag = le64_to_cpu(cm1->tag); |
5242 | *tagupper = cpu_to_le32(tag >> 32); | |
5243 | *taglower = cpu_to_le32(tag); | |
54b6e9e9 ST |
5244 | return; |
5245 | } | |
5246 | if (c->cmd_type == CMD_IOACCEL2) { | |
5247 | struct io_accel2_cmd *cm2 = (struct io_accel2_cmd *) | |
5248 | &h->ioaccel2_cmd_pool[c->cmdindex]; | |
dd0e19f3 ST |
5249 | /* upper tag not used in ioaccel2 mode */ |
5250 | memset(tagupper, 0, sizeof(*tagupper)); | |
5251 | *taglower = cm2->Tag; | |
54b6e9e9 | 5252 | return; |
17eb87d2 | 5253 | } |
2b08b3e9 DB |
5254 | tag = le64_to_cpu(c->Header.tag); |
5255 | *tagupper = cpu_to_le32(tag >> 32); | |
5256 | *taglower = cpu_to_le32(tag); | |
17eb87d2 ST |
5257 | } |
5258 | ||
75167d2c | 5259 | static int hpsa_send_abort(struct ctlr_info *h, unsigned char *scsi3addr, |
9b5c48c2 | 5260 | struct CommandList *abort, int reply_queue) |
75167d2c SC |
5261 | { |
5262 | int rc = IO_OK; | |
5263 | struct CommandList *c; | |
5264 | struct ErrorInfo *ei; | |
2b08b3e9 | 5265 | __le32 tagupper, taglower; |
75167d2c | 5266 | |
45fcb86e | 5267 | c = cmd_alloc(h); |
75167d2c | 5268 | |
a2dac136 | 5269 | /* fill_cmd can't fail here, no buffer to map */ |
9b5c48c2 | 5270 | (void) fill_cmd(c, HPSA_ABORT_MSG, h, &abort->Header.tag, |
a2dac136 | 5271 | 0, 0, scsi3addr, TYPE_MSG); |
9b5c48c2 | 5272 | if (h->needs_abort_tags_swizzled) |
6cba3f19 | 5273 | swizzle_abort_tag(&c->Request.CDB[4]); |
25163bd5 | 5274 | (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT); |
17eb87d2 | 5275 | hpsa_get_tag(h, abort, &taglower, &tagupper); |
25163bd5 | 5276 | dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: do_simple_cmd(abort) completed.\n", |
17eb87d2 | 5277 | __func__, tagupper, taglower); |
75167d2c SC |
5278 | /* no unmap needed here because no data xfer. */ |
5279 | ||
5280 | ei = c->err_info; | |
5281 | switch (ei->CommandStatus) { | |
5282 | case CMD_SUCCESS: | |
5283 | break; | |
9437ac43 SC |
5284 | case CMD_TMF_STATUS: |
5285 | rc = hpsa_evaluate_tmf_status(h, c); | |
5286 | break; | |
75167d2c SC |
5287 | case CMD_UNABORTABLE: /* Very common, don't make noise. */ |
5288 | rc = -1; | |
5289 | break; | |
5290 | default: | |
5291 | dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: interpreting error.\n", | |
17eb87d2 | 5292 | __func__, tagupper, taglower); |
d1e8beac | 5293 | hpsa_scsi_interpret_error(h, c); |
75167d2c SC |
5294 | rc = -1; |
5295 | break; | |
5296 | } | |
45fcb86e | 5297 | cmd_free(h, c); |
dd0e19f3 ST |
5298 | dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: Finished.\n", |
5299 | __func__, tagupper, taglower); | |
75167d2c SC |
5300 | return rc; |
5301 | } | |
5302 | ||
8be986cc SC |
5303 | static void setup_ioaccel2_abort_cmd(struct CommandList *c, struct ctlr_info *h, |
5304 | struct CommandList *command_to_abort, int reply_queue) | |
5305 | { | |
5306 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
5307 | struct hpsa_tmf_struct *ac = (struct hpsa_tmf_struct *) c2; | |
5308 | struct io_accel2_cmd *c2a = | |
5309 | &h->ioaccel2_cmd_pool[command_to_abort->cmdindex]; | |
a58e7e53 | 5310 | struct scsi_cmnd *scmd = command_to_abort->scsi_cmd; |
8be986cc SC |
5311 | struct hpsa_scsi_dev_t *dev = scmd->device->hostdata; |
5312 | ||
5313 | /* | |
5314 | * We're overlaying struct hpsa_tmf_struct on top of something which | |
5315 | * was allocated as a struct io_accel2_cmd, so we better be sure it | |
5316 | * actually fits, and doesn't overrun the error info space. | |
5317 | */ | |
5318 | BUILD_BUG_ON(sizeof(struct hpsa_tmf_struct) > | |
5319 | sizeof(struct io_accel2_cmd)); | |
5320 | BUG_ON(offsetof(struct io_accel2_cmd, error_data) < | |
5321 | offsetof(struct hpsa_tmf_struct, error_len) + | |
5322 | sizeof(ac->error_len)); | |
5323 | ||
5324 | c->cmd_type = IOACCEL2_TMF; | |
a58e7e53 WS |
5325 | c->scsi_cmd = SCSI_CMD_BUSY; |
5326 | ||
8be986cc SC |
5327 | /* Adjust the DMA address to point to the accelerated command buffer */ |
5328 | c->busaddr = (u32) h->ioaccel2_cmd_pool_dhandle + | |
5329 | (c->cmdindex * sizeof(struct io_accel2_cmd)); | |
5330 | BUG_ON(c->busaddr & 0x0000007F); | |
5331 | ||
5332 | memset(ac, 0, sizeof(*c2)); /* yes this is correct */ | |
5333 | ac->iu_type = IOACCEL2_IU_TMF_TYPE; | |
5334 | ac->reply_queue = reply_queue; | |
5335 | ac->tmf = IOACCEL2_TMF_ABORT; | |
5336 | ac->it_nexus = cpu_to_le32(dev->ioaccel_handle); | |
5337 | memset(ac->lun_id, 0, sizeof(ac->lun_id)); | |
5338 | ac->tag = cpu_to_le64(c->cmdindex << DIRECT_LOOKUP_SHIFT); | |
5339 | ac->abort_tag = cpu_to_le64(le32_to_cpu(c2a->Tag)); | |
5340 | ac->error_ptr = cpu_to_le64(c->busaddr + | |
5341 | offsetof(struct io_accel2_cmd, error_data)); | |
5342 | ac->error_len = cpu_to_le32(sizeof(c2->error_data)); | |
5343 | } | |
5344 | ||
54b6e9e9 ST |
5345 | /* ioaccel2 path firmware cannot handle abort task requests. |
5346 | * Change abort requests to physical target reset, and send to the | |
5347 | * address of the physical disk used for the ioaccel 2 command. | |
5348 | * Return 0 on success (IO_OK) | |
5349 | * -1 on failure | |
5350 | */ | |
5351 | ||
5352 | static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info *h, | |
25163bd5 | 5353 | unsigned char *scsi3addr, struct CommandList *abort, int reply_queue) |
54b6e9e9 ST |
5354 | { |
5355 | int rc = IO_OK; | |
5356 | struct scsi_cmnd *scmd; /* scsi command within request being aborted */ | |
5357 | struct hpsa_scsi_dev_t *dev; /* device to which scsi cmd was sent */ | |
5358 | unsigned char phys_scsi3addr[8]; /* addr of phys disk with volume */ | |
5359 | unsigned char *psa = &phys_scsi3addr[0]; | |
5360 | ||
5361 | /* Get a pointer to the hpsa logical device. */ | |
7fa3030c | 5362 | scmd = abort->scsi_cmd; |
54b6e9e9 ST |
5363 | dev = (struct hpsa_scsi_dev_t *)(scmd->device->hostdata); |
5364 | if (dev == NULL) { | |
5365 | dev_warn(&h->pdev->dev, | |
5366 | "Cannot abort: no device pointer for command.\n"); | |
5367 | return -1; /* not abortable */ | |
5368 | } | |
5369 | ||
2ba8bfc8 SC |
5370 | if (h->raid_offload_debug > 0) |
5371 | dev_info(&h->pdev->dev, | |
0d96ef5f | 5372 | "scsi %d:%d:%d:%d %s scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", |
2ba8bfc8 | 5373 | h->scsi_host->host_no, dev->bus, dev->target, dev->lun, |
0d96ef5f | 5374 | "Reset as abort", |
2ba8bfc8 SC |
5375 | scsi3addr[0], scsi3addr[1], scsi3addr[2], scsi3addr[3], |
5376 | scsi3addr[4], scsi3addr[5], scsi3addr[6], scsi3addr[7]); | |
5377 | ||
54b6e9e9 ST |
5378 | if (!dev->offload_enabled) { |
5379 | dev_warn(&h->pdev->dev, | |
5380 | "Can't abort: device is not operating in HP SSD Smart Path mode.\n"); | |
5381 | return -1; /* not abortable */ | |
5382 | } | |
5383 | ||
5384 | /* Incoming scsi3addr is logical addr. We need physical disk addr. */ | |
5385 | if (!hpsa_get_pdisk_of_ioaccel2(h, abort, psa)) { | |
5386 | dev_warn(&h->pdev->dev, "Can't abort: Failed lookup of physical address.\n"); | |
5387 | return -1; /* not abortable */ | |
5388 | } | |
5389 | ||
5390 | /* send the reset */ | |
2ba8bfc8 SC |
5391 | if (h->raid_offload_debug > 0) |
5392 | dev_info(&h->pdev->dev, | |
5393 | "Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
5394 | psa[0], psa[1], psa[2], psa[3], | |
5395 | psa[4], psa[5], psa[6], psa[7]); | |
d604f533 | 5396 | rc = hpsa_do_reset(h, dev, psa, HPSA_RESET_TYPE_TARGET, reply_queue); |
54b6e9e9 ST |
5397 | if (rc != 0) { |
5398 | dev_warn(&h->pdev->dev, | |
5399 | "Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
5400 | psa[0], psa[1], psa[2], psa[3], | |
5401 | psa[4], psa[5], psa[6], psa[7]); | |
5402 | return rc; /* failed to reset */ | |
5403 | } | |
5404 | ||
5405 | /* wait for device to recover */ | |
b69324ff | 5406 | if (wait_for_device_to_become_ready(h, psa, reply_queue) != 0) { |
54b6e9e9 ST |
5407 | dev_warn(&h->pdev->dev, |
5408 | "Reset as abort: Failed: Device never recovered from reset: 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
5409 | psa[0], psa[1], psa[2], psa[3], | |
5410 | psa[4], psa[5], psa[6], psa[7]); | |
5411 | return -1; /* failed to recover */ | |
5412 | } | |
5413 | ||
5414 | /* device recovered */ | |
5415 | dev_info(&h->pdev->dev, | |
5416 | "Reset as abort: Device recovered from reset: scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
5417 | psa[0], psa[1], psa[2], psa[3], | |
5418 | psa[4], psa[5], psa[6], psa[7]); | |
5419 | ||
5420 | return rc; /* success */ | |
5421 | } | |
5422 | ||
8be986cc SC |
5423 | static int hpsa_send_abort_ioaccel2(struct ctlr_info *h, |
5424 | struct CommandList *abort, int reply_queue) | |
5425 | { | |
5426 | int rc = IO_OK; | |
5427 | struct CommandList *c; | |
5428 | __le32 taglower, tagupper; | |
5429 | struct hpsa_scsi_dev_t *dev; | |
5430 | struct io_accel2_cmd *c2; | |
5431 | ||
5432 | dev = abort->scsi_cmd->device->hostdata; | |
5433 | if (!dev->offload_enabled && !dev->hba_ioaccel_enabled) | |
5434 | return -1; | |
5435 | ||
5436 | c = cmd_alloc(h); | |
5437 | setup_ioaccel2_abort_cmd(c, h, abort, reply_queue); | |
5438 | c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
5439 | (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT); | |
5440 | hpsa_get_tag(h, abort, &taglower, &tagupper); | |
5441 | dev_dbg(&h->pdev->dev, | |
5442 | "%s: Tag:0x%08x:%08x: do_simple_cmd(ioaccel2 abort) completed.\n", | |
5443 | __func__, tagupper, taglower); | |
5444 | /* no unmap needed here because no data xfer. */ | |
5445 | ||
5446 | dev_dbg(&h->pdev->dev, | |
5447 | "%s: Tag:0x%08x:%08x: abort service response = 0x%02x.\n", | |
5448 | __func__, tagupper, taglower, c2->error_data.serv_response); | |
5449 | switch (c2->error_data.serv_response) { | |
5450 | case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE: | |
5451 | case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS: | |
5452 | rc = 0; | |
5453 | break; | |
5454 | case IOACCEL2_SERV_RESPONSE_TMF_REJECTED: | |
5455 | case IOACCEL2_SERV_RESPONSE_FAILURE: | |
5456 | case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN: | |
5457 | rc = -1; | |
5458 | break; | |
5459 | default: | |
5460 | dev_warn(&h->pdev->dev, | |
5461 | "%s: Tag:0x%08x:%08x: unknown abort service response 0x%02x\n", | |
5462 | __func__, tagupper, taglower, | |
5463 | c2->error_data.serv_response); | |
5464 | rc = -1; | |
5465 | } | |
5466 | cmd_free(h, c); | |
5467 | dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: Finished.\n", __func__, | |
5468 | tagupper, taglower); | |
5469 | return rc; | |
5470 | } | |
5471 | ||
6cba3f19 | 5472 | static int hpsa_send_abort_both_ways(struct ctlr_info *h, |
25163bd5 | 5473 | unsigned char *scsi3addr, struct CommandList *abort, int reply_queue) |
6cba3f19 | 5474 | { |
8be986cc SC |
5475 | /* |
5476 | * ioccelerator mode 2 commands should be aborted via the | |
54b6e9e9 | 5477 | * accelerated path, since RAID path is unaware of these commands, |
8be986cc SC |
5478 | * but not all underlying firmware can handle abort TMF. |
5479 | * Change abort to physical device reset when abort TMF is unsupported. | |
54b6e9e9 | 5480 | */ |
8be986cc SC |
5481 | if (abort->cmd_type == CMD_IOACCEL2) { |
5482 | if (HPSATMF_IOACCEL_ENABLED & h->TMFSupportFlags) | |
5483 | return hpsa_send_abort_ioaccel2(h, abort, | |
5484 | reply_queue); | |
5485 | else | |
5486 | return hpsa_send_reset_as_abort_ioaccel2(h, scsi3addr, | |
25163bd5 | 5487 | abort, reply_queue); |
8be986cc | 5488 | } |
9b5c48c2 | 5489 | return hpsa_send_abort(h, scsi3addr, abort, reply_queue); |
25163bd5 | 5490 | } |
54b6e9e9 | 5491 | |
25163bd5 WS |
5492 | /* Find out which reply queue a command was meant to return on */ |
5493 | static int hpsa_extract_reply_queue(struct ctlr_info *h, | |
5494 | struct CommandList *c) | |
5495 | { | |
5496 | if (c->cmd_type == CMD_IOACCEL2) | |
5497 | return h->ioaccel2_cmd_pool[c->cmdindex].reply_queue; | |
5498 | return c->Header.ReplyQueue; | |
6cba3f19 SC |
5499 | } |
5500 | ||
9b5c48c2 SC |
5501 | /* |
5502 | * Limit concurrency of abort commands to prevent | |
5503 | * over-subscription of commands | |
5504 | */ | |
5505 | static inline int wait_for_available_abort_cmd(struct ctlr_info *h) | |
5506 | { | |
5507 | #define ABORT_CMD_WAIT_MSECS 5000 | |
5508 | return !wait_event_timeout(h->abort_cmd_wait_queue, | |
5509 | atomic_dec_if_positive(&h->abort_cmds_available) >= 0, | |
5510 | msecs_to_jiffies(ABORT_CMD_WAIT_MSECS)); | |
5511 | } | |
5512 | ||
75167d2c SC |
5513 | /* Send an abort for the specified command. |
5514 | * If the device and controller support it, | |
5515 | * send a task abort request. | |
5516 | */ | |
5517 | static int hpsa_eh_abort_handler(struct scsi_cmnd *sc) | |
5518 | { | |
5519 | ||
a58e7e53 | 5520 | int rc; |
75167d2c SC |
5521 | struct ctlr_info *h; |
5522 | struct hpsa_scsi_dev_t *dev; | |
5523 | struct CommandList *abort; /* pointer to command to be aborted */ | |
75167d2c SC |
5524 | struct scsi_cmnd *as; /* ptr to scsi cmd inside aborted command. */ |
5525 | char msg[256]; /* For debug messaging. */ | |
5526 | int ml = 0; | |
2b08b3e9 | 5527 | __le32 tagupper, taglower; |
25163bd5 WS |
5528 | int refcount, reply_queue; |
5529 | ||
5530 | if (sc == NULL) | |
5531 | return FAILED; | |
75167d2c | 5532 | |
9b5c48c2 SC |
5533 | if (sc->device == NULL) |
5534 | return FAILED; | |
5535 | ||
75167d2c SC |
5536 | /* Find the controller of the command to be aborted */ |
5537 | h = sdev_to_hba(sc->device); | |
9b5c48c2 | 5538 | if (h == NULL) |
75167d2c SC |
5539 | return FAILED; |
5540 | ||
25163bd5 WS |
5541 | /* Find the device of the command to be aborted */ |
5542 | dev = sc->device->hostdata; | |
5543 | if (!dev) { | |
5544 | dev_err(&h->pdev->dev, "%s FAILED, Device lookup failed.\n", | |
5545 | msg); | |
e345893b | 5546 | return FAILED; |
25163bd5 WS |
5547 | } |
5548 | ||
5549 | /* If controller locked up, we can guarantee command won't complete */ | |
5550 | if (lockup_detected(h)) { | |
5551 | hpsa_show_dev_msg(KERN_WARNING, h, dev, | |
5552 | "ABORT FAILED, lockup detected"); | |
5553 | return FAILED; | |
5554 | } | |
5555 | ||
5556 | /* This is a good time to check if controller lockup has occurred */ | |
5557 | if (detect_controller_lockup(h)) { | |
5558 | hpsa_show_dev_msg(KERN_WARNING, h, dev, | |
5559 | "ABORT FAILED, new lockup detected"); | |
5560 | return FAILED; | |
5561 | } | |
e345893b | 5562 | |
75167d2c SC |
5563 | /* Check that controller supports some kind of task abort */ |
5564 | if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags) && | |
5565 | !(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags)) | |
5566 | return FAILED; | |
5567 | ||
5568 | memset(msg, 0, sizeof(msg)); | |
4b761557 | 5569 | ml += sprintf(msg+ml, "scsi %d:%d:%d:%llu %s %p", |
75167d2c | 5570 | h->scsi_host->host_no, sc->device->channel, |
0d96ef5f | 5571 | sc->device->id, sc->device->lun, |
4b761557 | 5572 | "Aborting command", sc); |
75167d2c | 5573 | |
75167d2c SC |
5574 | /* Get SCSI command to be aborted */ |
5575 | abort = (struct CommandList *) sc->host_scribble; | |
5576 | if (abort == NULL) { | |
281a7fd0 WS |
5577 | /* This can happen if the command already completed. */ |
5578 | return SUCCESS; | |
5579 | } | |
5580 | refcount = atomic_inc_return(&abort->refcount); | |
5581 | if (refcount == 1) { /* Command is done already. */ | |
5582 | cmd_free(h, abort); | |
5583 | return SUCCESS; | |
75167d2c | 5584 | } |
9b5c48c2 SC |
5585 | |
5586 | /* Don't bother trying the abort if we know it won't work. */ | |
5587 | if (abort->cmd_type != CMD_IOACCEL2 && | |
5588 | abort->cmd_type != CMD_IOACCEL1 && !dev->supports_aborts) { | |
5589 | cmd_free(h, abort); | |
5590 | return FAILED; | |
5591 | } | |
5592 | ||
a58e7e53 WS |
5593 | /* |
5594 | * Check that we're aborting the right command. | |
5595 | * It's possible the CommandList already completed and got re-used. | |
5596 | */ | |
5597 | if (abort->scsi_cmd != sc) { | |
5598 | cmd_free(h, abort); | |
5599 | return SUCCESS; | |
5600 | } | |
5601 | ||
5602 | abort->abort_pending = true; | |
17eb87d2 | 5603 | hpsa_get_tag(h, abort, &taglower, &tagupper); |
25163bd5 | 5604 | reply_queue = hpsa_extract_reply_queue(h, abort); |
17eb87d2 | 5605 | ml += sprintf(msg+ml, "Tag:0x%08x:%08x ", tagupper, taglower); |
7fa3030c | 5606 | as = abort->scsi_cmd; |
75167d2c | 5607 | if (as != NULL) |
4b761557 RE |
5608 | ml += sprintf(msg+ml, |
5609 | "CDBLen: %d CDB: 0x%02x%02x... SN: 0x%lx ", | |
5610 | as->cmd_len, as->cmnd[0], as->cmnd[1], | |
5611 | as->serial_number); | |
5612 | dev_warn(&h->pdev->dev, "%s BEING SENT\n", msg); | |
0d96ef5f | 5613 | hpsa_show_dev_msg(KERN_WARNING, h, dev, "Aborting command"); |
4b761557 | 5614 | |
75167d2c SC |
5615 | /* |
5616 | * Command is in flight, or possibly already completed | |
5617 | * by the firmware (but not to the scsi mid layer) but we can't | |
5618 | * distinguish which. Send the abort down. | |
5619 | */ | |
9b5c48c2 SC |
5620 | if (wait_for_available_abort_cmd(h)) { |
5621 | dev_warn(&h->pdev->dev, | |
4b761557 RE |
5622 | "%s FAILED, timeout waiting for an abort command to become available.\n", |
5623 | msg); | |
9b5c48c2 SC |
5624 | cmd_free(h, abort); |
5625 | return FAILED; | |
5626 | } | |
25163bd5 | 5627 | rc = hpsa_send_abort_both_ways(h, dev->scsi3addr, abort, reply_queue); |
9b5c48c2 SC |
5628 | atomic_inc(&h->abort_cmds_available); |
5629 | wake_up_all(&h->abort_cmd_wait_queue); | |
75167d2c | 5630 | if (rc != 0) { |
4b761557 | 5631 | dev_warn(&h->pdev->dev, "%s SENT, FAILED\n", msg); |
0d96ef5f | 5632 | hpsa_show_dev_msg(KERN_WARNING, h, dev, |
4b761557 | 5633 | "FAILED to abort command"); |
281a7fd0 | 5634 | cmd_free(h, abort); |
75167d2c SC |
5635 | return FAILED; |
5636 | } | |
4b761557 | 5637 | dev_info(&h->pdev->dev, "%s SENT, SUCCESS\n", msg); |
d604f533 | 5638 | wait_event(h->event_sync_wait_queue, |
a58e7e53 | 5639 | abort->scsi_cmd != sc || lockup_detected(h)); |
281a7fd0 | 5640 | cmd_free(h, abort); |
a58e7e53 | 5641 | return !lockup_detected(h) ? SUCCESS : FAILED; |
75167d2c SC |
5642 | } |
5643 | ||
73153fe5 WS |
5644 | /* |
5645 | * For operations with an associated SCSI command, a command block is allocated | |
5646 | * at init, and managed by cmd_tagged_alloc() and cmd_tagged_free() using the | |
5647 | * block request tag as an index into a table of entries. cmd_tagged_free() is | |
5648 | * the complement, although cmd_free() may be called instead. | |
5649 | */ | |
5650 | static struct CommandList *cmd_tagged_alloc(struct ctlr_info *h, | |
5651 | struct scsi_cmnd *scmd) | |
5652 | { | |
5653 | int idx = hpsa_get_cmd_index(scmd); | |
5654 | struct CommandList *c = h->cmd_pool + idx; | |
5655 | ||
5656 | if (idx < HPSA_NRESERVED_CMDS || idx >= h->nr_cmds) { | |
5657 | dev_err(&h->pdev->dev, "Bad block tag: %d not in [%d..%d]\n", | |
5658 | idx, HPSA_NRESERVED_CMDS, h->nr_cmds - 1); | |
5659 | /* The index value comes from the block layer, so if it's out of | |
5660 | * bounds, it's probably not our bug. | |
5661 | */ | |
5662 | BUG(); | |
5663 | } | |
5664 | ||
5665 | atomic_inc(&c->refcount); | |
5666 | if (unlikely(!hpsa_is_cmd_idle(c))) { | |
5667 | /* | |
5668 | * We expect that the SCSI layer will hand us a unique tag | |
5669 | * value. Thus, there should never be a collision here between | |
5670 | * two requests...because if the selected command isn't idle | |
5671 | * then someone is going to be very disappointed. | |
5672 | */ | |
5673 | dev_err(&h->pdev->dev, | |
5674 | "tag collision (tag=%d) in cmd_tagged_alloc().\n", | |
5675 | idx); | |
5676 | if (c->scsi_cmd != NULL) | |
5677 | scsi_print_command(c->scsi_cmd); | |
5678 | scsi_print_command(scmd); | |
5679 | } | |
5680 | ||
5681 | hpsa_cmd_partial_init(h, idx, c); | |
5682 | return c; | |
5683 | } | |
5684 | ||
5685 | static void cmd_tagged_free(struct ctlr_info *h, struct CommandList *c) | |
5686 | { | |
5687 | /* | |
5688 | * Release our reference to the block. We don't need to do anything | |
5689 | * else to free it, because it is accessed by index. (There's no point | |
5690 | * in checking the result of the decrement, since we cannot guarantee | |
5691 | * that there isn't a concurrent abort which is also accessing it.) | |
5692 | */ | |
5693 | (void)atomic_dec(&c->refcount); | |
5694 | } | |
5695 | ||
edd16368 SC |
5696 | /* |
5697 | * For operations that cannot sleep, a command block is allocated at init, | |
5698 | * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track | |
5699 | * which ones are free or in use. Lock must be held when calling this. | |
5700 | * cmd_free() is the complement. | |
bf43caf3 RE |
5701 | * This function never gives up and returns NULL. If it hangs, |
5702 | * another thread must call cmd_free() to free some tags. | |
edd16368 | 5703 | */ |
281a7fd0 | 5704 | |
edd16368 SC |
5705 | static struct CommandList *cmd_alloc(struct ctlr_info *h) |
5706 | { | |
5707 | struct CommandList *c; | |
360c73bd | 5708 | int refcount, i; |
73153fe5 | 5709 | int offset = 0; |
4c413128 | 5710 | |
33811026 RE |
5711 | /* |
5712 | * There is some *extremely* small but non-zero chance that that | |
4c413128 SC |
5713 | * multiple threads could get in here, and one thread could |
5714 | * be scanning through the list of bits looking for a free | |
5715 | * one, but the free ones are always behind him, and other | |
5716 | * threads sneak in behind him and eat them before he can | |
5717 | * get to them, so that while there is always a free one, a | |
5718 | * very unlucky thread might be starved anyway, never able to | |
5719 | * beat the other threads. In reality, this happens so | |
5720 | * infrequently as to be indistinguishable from never. | |
73153fe5 WS |
5721 | * |
5722 | * Note that we start allocating commands before the SCSI host structure | |
5723 | * is initialized. Since the search starts at bit zero, this | |
5724 | * all works, since we have at least one command structure available; | |
5725 | * however, it means that the structures with the low indexes have to be | |
5726 | * reserved for driver-initiated requests, while requests from the block | |
5727 | * layer will use the higher indexes. | |
4c413128 | 5728 | */ |
edd16368 | 5729 | |
281a7fd0 | 5730 | for (;;) { |
73153fe5 WS |
5731 | i = find_next_zero_bit(h->cmd_pool_bits, |
5732 | HPSA_NRESERVED_CMDS, | |
5733 | offset); | |
5734 | if (unlikely(i >= HPSA_NRESERVED_CMDS)) { | |
281a7fd0 WS |
5735 | offset = 0; |
5736 | continue; | |
5737 | } | |
5738 | c = h->cmd_pool + i; | |
5739 | refcount = atomic_inc_return(&c->refcount); | |
5740 | if (unlikely(refcount > 1)) { | |
5741 | cmd_free(h, c); /* already in use */ | |
73153fe5 | 5742 | offset = (i + 1) % HPSA_NRESERVED_CMDS; |
281a7fd0 WS |
5743 | continue; |
5744 | } | |
5745 | set_bit(i & (BITS_PER_LONG - 1), | |
5746 | h->cmd_pool_bits + (i / BITS_PER_LONG)); | |
5747 | break; /* it's ours now. */ | |
5748 | } | |
360c73bd | 5749 | hpsa_cmd_partial_init(h, i, c); |
edd16368 SC |
5750 | return c; |
5751 | } | |
5752 | ||
73153fe5 WS |
5753 | /* |
5754 | * This is the complementary operation to cmd_alloc(). Note, however, in some | |
5755 | * corner cases it may also be used to free blocks allocated by | |
5756 | * cmd_tagged_alloc() in which case the ref-count decrement does the trick and | |
5757 | * the clear-bit is harmless. | |
5758 | */ | |
edd16368 SC |
5759 | static void cmd_free(struct ctlr_info *h, struct CommandList *c) |
5760 | { | |
281a7fd0 WS |
5761 | if (atomic_dec_and_test(&c->refcount)) { |
5762 | int i; | |
edd16368 | 5763 | |
281a7fd0 WS |
5764 | i = c - h->cmd_pool; |
5765 | clear_bit(i & (BITS_PER_LONG - 1), | |
5766 | h->cmd_pool_bits + (i / BITS_PER_LONG)); | |
5767 | } | |
edd16368 SC |
5768 | } |
5769 | ||
edd16368 SC |
5770 | #ifdef CONFIG_COMPAT |
5771 | ||
42a91641 DB |
5772 | static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, |
5773 | void __user *arg) | |
edd16368 SC |
5774 | { |
5775 | IOCTL32_Command_struct __user *arg32 = | |
5776 | (IOCTL32_Command_struct __user *) arg; | |
5777 | IOCTL_Command_struct arg64; | |
5778 | IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(arg64)); | |
5779 | int err; | |
5780 | u32 cp; | |
5781 | ||
938abd84 | 5782 | memset(&arg64, 0, sizeof(arg64)); |
edd16368 SC |
5783 | err = 0; |
5784 | err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, | |
5785 | sizeof(arg64.LUN_info)); | |
5786 | err |= copy_from_user(&arg64.Request, &arg32->Request, | |
5787 | sizeof(arg64.Request)); | |
5788 | err |= copy_from_user(&arg64.error_info, &arg32->error_info, | |
5789 | sizeof(arg64.error_info)); | |
5790 | err |= get_user(arg64.buf_size, &arg32->buf_size); | |
5791 | err |= get_user(cp, &arg32->buf); | |
5792 | arg64.buf = compat_ptr(cp); | |
5793 | err |= copy_to_user(p, &arg64, sizeof(arg64)); | |
5794 | ||
5795 | if (err) | |
5796 | return -EFAULT; | |
5797 | ||
42a91641 | 5798 | err = hpsa_ioctl(dev, CCISS_PASSTHRU, p); |
edd16368 SC |
5799 | if (err) |
5800 | return err; | |
5801 | err |= copy_in_user(&arg32->error_info, &p->error_info, | |
5802 | sizeof(arg32->error_info)); | |
5803 | if (err) | |
5804 | return -EFAULT; | |
5805 | return err; | |
5806 | } | |
5807 | ||
5808 | static int hpsa_ioctl32_big_passthru(struct scsi_device *dev, | |
42a91641 | 5809 | int cmd, void __user *arg) |
edd16368 SC |
5810 | { |
5811 | BIG_IOCTL32_Command_struct __user *arg32 = | |
5812 | (BIG_IOCTL32_Command_struct __user *) arg; | |
5813 | BIG_IOCTL_Command_struct arg64; | |
5814 | BIG_IOCTL_Command_struct __user *p = | |
5815 | compat_alloc_user_space(sizeof(arg64)); | |
5816 | int err; | |
5817 | u32 cp; | |
5818 | ||
938abd84 | 5819 | memset(&arg64, 0, sizeof(arg64)); |
edd16368 SC |
5820 | err = 0; |
5821 | err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, | |
5822 | sizeof(arg64.LUN_info)); | |
5823 | err |= copy_from_user(&arg64.Request, &arg32->Request, | |
5824 | sizeof(arg64.Request)); | |
5825 | err |= copy_from_user(&arg64.error_info, &arg32->error_info, | |
5826 | sizeof(arg64.error_info)); | |
5827 | err |= get_user(arg64.buf_size, &arg32->buf_size); | |
5828 | err |= get_user(arg64.malloc_size, &arg32->malloc_size); | |
5829 | err |= get_user(cp, &arg32->buf); | |
5830 | arg64.buf = compat_ptr(cp); | |
5831 | err |= copy_to_user(p, &arg64, sizeof(arg64)); | |
5832 | ||
5833 | if (err) | |
5834 | return -EFAULT; | |
5835 | ||
42a91641 | 5836 | err = hpsa_ioctl(dev, CCISS_BIG_PASSTHRU, p); |
edd16368 SC |
5837 | if (err) |
5838 | return err; | |
5839 | err |= copy_in_user(&arg32->error_info, &p->error_info, | |
5840 | sizeof(arg32->error_info)); | |
5841 | if (err) | |
5842 | return -EFAULT; | |
5843 | return err; | |
5844 | } | |
71fe75a7 | 5845 | |
42a91641 | 5846 | static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, void __user *arg) |
71fe75a7 SC |
5847 | { |
5848 | switch (cmd) { | |
5849 | case CCISS_GETPCIINFO: | |
5850 | case CCISS_GETINTINFO: | |
5851 | case CCISS_SETINTINFO: | |
5852 | case CCISS_GETNODENAME: | |
5853 | case CCISS_SETNODENAME: | |
5854 | case CCISS_GETHEARTBEAT: | |
5855 | case CCISS_GETBUSTYPES: | |
5856 | case CCISS_GETFIRMVER: | |
5857 | case CCISS_GETDRIVVER: | |
5858 | case CCISS_REVALIDVOLS: | |
5859 | case CCISS_DEREGDISK: | |
5860 | case CCISS_REGNEWDISK: | |
5861 | case CCISS_REGNEWD: | |
5862 | case CCISS_RESCANDISK: | |
5863 | case CCISS_GETLUNINFO: | |
5864 | return hpsa_ioctl(dev, cmd, arg); | |
5865 | ||
5866 | case CCISS_PASSTHRU32: | |
5867 | return hpsa_ioctl32_passthru(dev, cmd, arg); | |
5868 | case CCISS_BIG_PASSTHRU32: | |
5869 | return hpsa_ioctl32_big_passthru(dev, cmd, arg); | |
5870 | ||
5871 | default: | |
5872 | return -ENOIOCTLCMD; | |
5873 | } | |
5874 | } | |
edd16368 SC |
5875 | #endif |
5876 | ||
5877 | static int hpsa_getpciinfo_ioctl(struct ctlr_info *h, void __user *argp) | |
5878 | { | |
5879 | struct hpsa_pci_info pciinfo; | |
5880 | ||
5881 | if (!argp) | |
5882 | return -EINVAL; | |
5883 | pciinfo.domain = pci_domain_nr(h->pdev->bus); | |
5884 | pciinfo.bus = h->pdev->bus->number; | |
5885 | pciinfo.dev_fn = h->pdev->devfn; | |
5886 | pciinfo.board_id = h->board_id; | |
5887 | if (copy_to_user(argp, &pciinfo, sizeof(pciinfo))) | |
5888 | return -EFAULT; | |
5889 | return 0; | |
5890 | } | |
5891 | ||
5892 | static int hpsa_getdrivver_ioctl(struct ctlr_info *h, void __user *argp) | |
5893 | { | |
5894 | DriverVer_type DriverVer; | |
5895 | unsigned char vmaj, vmin, vsubmin; | |
5896 | int rc; | |
5897 | ||
5898 | rc = sscanf(HPSA_DRIVER_VERSION, "%hhu.%hhu.%hhu", | |
5899 | &vmaj, &vmin, &vsubmin); | |
5900 | if (rc != 3) { | |
5901 | dev_info(&h->pdev->dev, "driver version string '%s' " | |
5902 | "unrecognized.", HPSA_DRIVER_VERSION); | |
5903 | vmaj = 0; | |
5904 | vmin = 0; | |
5905 | vsubmin = 0; | |
5906 | } | |
5907 | DriverVer = (vmaj << 16) | (vmin << 8) | vsubmin; | |
5908 | if (!argp) | |
5909 | return -EINVAL; | |
5910 | if (copy_to_user(argp, &DriverVer, sizeof(DriverVer_type))) | |
5911 | return -EFAULT; | |
5912 | return 0; | |
5913 | } | |
5914 | ||
5915 | static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp) | |
5916 | { | |
5917 | IOCTL_Command_struct iocommand; | |
5918 | struct CommandList *c; | |
5919 | char *buff = NULL; | |
50a0decf | 5920 | u64 temp64; |
c1f63c8f | 5921 | int rc = 0; |
edd16368 SC |
5922 | |
5923 | if (!argp) | |
5924 | return -EINVAL; | |
5925 | if (!capable(CAP_SYS_RAWIO)) | |
5926 | return -EPERM; | |
5927 | if (copy_from_user(&iocommand, argp, sizeof(iocommand))) | |
5928 | return -EFAULT; | |
5929 | if ((iocommand.buf_size < 1) && | |
5930 | (iocommand.Request.Type.Direction != XFER_NONE)) { | |
5931 | return -EINVAL; | |
5932 | } | |
5933 | if (iocommand.buf_size > 0) { | |
5934 | buff = kmalloc(iocommand.buf_size, GFP_KERNEL); | |
5935 | if (buff == NULL) | |
2dd02d74 | 5936 | return -ENOMEM; |
9233fb10 | 5937 | if (iocommand.Request.Type.Direction & XFER_WRITE) { |
b03a7771 SC |
5938 | /* Copy the data into the buffer we created */ |
5939 | if (copy_from_user(buff, iocommand.buf, | |
5940 | iocommand.buf_size)) { | |
c1f63c8f SC |
5941 | rc = -EFAULT; |
5942 | goto out_kfree; | |
b03a7771 SC |
5943 | } |
5944 | } else { | |
5945 | memset(buff, 0, iocommand.buf_size); | |
edd16368 | 5946 | } |
b03a7771 | 5947 | } |
45fcb86e | 5948 | c = cmd_alloc(h); |
bf43caf3 | 5949 | |
edd16368 SC |
5950 | /* Fill in the command type */ |
5951 | c->cmd_type = CMD_IOCTL_PEND; | |
a58e7e53 | 5952 | c->scsi_cmd = SCSI_CMD_BUSY; |
edd16368 SC |
5953 | /* Fill in Command Header */ |
5954 | c->Header.ReplyQueue = 0; /* unused in simple mode */ | |
5955 | if (iocommand.buf_size > 0) { /* buffer to fill */ | |
5956 | c->Header.SGList = 1; | |
50a0decf | 5957 | c->Header.SGTotal = cpu_to_le16(1); |
edd16368 SC |
5958 | } else { /* no buffers to fill */ |
5959 | c->Header.SGList = 0; | |
50a0decf | 5960 | c->Header.SGTotal = cpu_to_le16(0); |
edd16368 SC |
5961 | } |
5962 | memcpy(&c->Header.LUN, &iocommand.LUN_info, sizeof(c->Header.LUN)); | |
edd16368 SC |
5963 | |
5964 | /* Fill in Request block */ | |
5965 | memcpy(&c->Request, &iocommand.Request, | |
5966 | sizeof(c->Request)); | |
5967 | ||
5968 | /* Fill in the scatter gather information */ | |
5969 | if (iocommand.buf_size > 0) { | |
50a0decf | 5970 | temp64 = pci_map_single(h->pdev, buff, |
edd16368 | 5971 | iocommand.buf_size, PCI_DMA_BIDIRECTIONAL); |
50a0decf SC |
5972 | if (dma_mapping_error(&h->pdev->dev, (dma_addr_t) temp64)) { |
5973 | c->SG[0].Addr = cpu_to_le64(0); | |
5974 | c->SG[0].Len = cpu_to_le32(0); | |
bcc48ffa SC |
5975 | rc = -ENOMEM; |
5976 | goto out; | |
5977 | } | |
50a0decf SC |
5978 | c->SG[0].Addr = cpu_to_le64(temp64); |
5979 | c->SG[0].Len = cpu_to_le32(iocommand.buf_size); | |
5980 | c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */ | |
edd16368 | 5981 | } |
25163bd5 | 5982 | rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); |
c2dd32e0 SC |
5983 | if (iocommand.buf_size > 0) |
5984 | hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL); | |
edd16368 | 5985 | check_ioctl_unit_attention(h, c); |
25163bd5 WS |
5986 | if (rc) { |
5987 | rc = -EIO; | |
5988 | goto out; | |
5989 | } | |
edd16368 SC |
5990 | |
5991 | /* Copy the error information out */ | |
5992 | memcpy(&iocommand.error_info, c->err_info, | |
5993 | sizeof(iocommand.error_info)); | |
5994 | if (copy_to_user(argp, &iocommand, sizeof(iocommand))) { | |
c1f63c8f SC |
5995 | rc = -EFAULT; |
5996 | goto out; | |
edd16368 | 5997 | } |
9233fb10 | 5998 | if ((iocommand.Request.Type.Direction & XFER_READ) && |
b03a7771 | 5999 | iocommand.buf_size > 0) { |
edd16368 SC |
6000 | /* Copy the data out of the buffer we created */ |
6001 | if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) { | |
c1f63c8f SC |
6002 | rc = -EFAULT; |
6003 | goto out; | |
edd16368 SC |
6004 | } |
6005 | } | |
c1f63c8f | 6006 | out: |
45fcb86e | 6007 | cmd_free(h, c); |
c1f63c8f SC |
6008 | out_kfree: |
6009 | kfree(buff); | |
6010 | return rc; | |
edd16368 SC |
6011 | } |
6012 | ||
6013 | static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) | |
6014 | { | |
6015 | BIG_IOCTL_Command_struct *ioc; | |
6016 | struct CommandList *c; | |
6017 | unsigned char **buff = NULL; | |
6018 | int *buff_size = NULL; | |
50a0decf | 6019 | u64 temp64; |
edd16368 SC |
6020 | BYTE sg_used = 0; |
6021 | int status = 0; | |
01a02ffc SC |
6022 | u32 left; |
6023 | u32 sz; | |
edd16368 SC |
6024 | BYTE __user *data_ptr; |
6025 | ||
6026 | if (!argp) | |
6027 | return -EINVAL; | |
6028 | if (!capable(CAP_SYS_RAWIO)) | |
6029 | return -EPERM; | |
6030 | ioc = (BIG_IOCTL_Command_struct *) | |
6031 | kmalloc(sizeof(*ioc), GFP_KERNEL); | |
6032 | if (!ioc) { | |
6033 | status = -ENOMEM; | |
6034 | goto cleanup1; | |
6035 | } | |
6036 | if (copy_from_user(ioc, argp, sizeof(*ioc))) { | |
6037 | status = -EFAULT; | |
6038 | goto cleanup1; | |
6039 | } | |
6040 | if ((ioc->buf_size < 1) && | |
6041 | (ioc->Request.Type.Direction != XFER_NONE)) { | |
6042 | status = -EINVAL; | |
6043 | goto cleanup1; | |
6044 | } | |
6045 | /* Check kmalloc limits using all SGs */ | |
6046 | if (ioc->malloc_size > MAX_KMALLOC_SIZE) { | |
6047 | status = -EINVAL; | |
6048 | goto cleanup1; | |
6049 | } | |
d66ae08b | 6050 | if (ioc->buf_size > ioc->malloc_size * SG_ENTRIES_IN_CMD) { |
edd16368 SC |
6051 | status = -EINVAL; |
6052 | goto cleanup1; | |
6053 | } | |
d66ae08b | 6054 | buff = kzalloc(SG_ENTRIES_IN_CMD * sizeof(char *), GFP_KERNEL); |
edd16368 SC |
6055 | if (!buff) { |
6056 | status = -ENOMEM; | |
6057 | goto cleanup1; | |
6058 | } | |
d66ae08b | 6059 | buff_size = kmalloc(SG_ENTRIES_IN_CMD * sizeof(int), GFP_KERNEL); |
edd16368 SC |
6060 | if (!buff_size) { |
6061 | status = -ENOMEM; | |
6062 | goto cleanup1; | |
6063 | } | |
6064 | left = ioc->buf_size; | |
6065 | data_ptr = ioc->buf; | |
6066 | while (left) { | |
6067 | sz = (left > ioc->malloc_size) ? ioc->malloc_size : left; | |
6068 | buff_size[sg_used] = sz; | |
6069 | buff[sg_used] = kmalloc(sz, GFP_KERNEL); | |
6070 | if (buff[sg_used] == NULL) { | |
6071 | status = -ENOMEM; | |
6072 | goto cleanup1; | |
6073 | } | |
9233fb10 | 6074 | if (ioc->Request.Type.Direction & XFER_WRITE) { |
edd16368 | 6075 | if (copy_from_user(buff[sg_used], data_ptr, sz)) { |
0758f4f7 | 6076 | status = -EFAULT; |
edd16368 SC |
6077 | goto cleanup1; |
6078 | } | |
6079 | } else | |
6080 | memset(buff[sg_used], 0, sz); | |
6081 | left -= sz; | |
6082 | data_ptr += sz; | |
6083 | sg_used++; | |
6084 | } | |
45fcb86e | 6085 | c = cmd_alloc(h); |
bf43caf3 | 6086 | |
edd16368 | 6087 | c->cmd_type = CMD_IOCTL_PEND; |
a58e7e53 | 6088 | c->scsi_cmd = SCSI_CMD_BUSY; |
edd16368 | 6089 | c->Header.ReplyQueue = 0; |
50a0decf SC |
6090 | c->Header.SGList = (u8) sg_used; |
6091 | c->Header.SGTotal = cpu_to_le16(sg_used); | |
edd16368 | 6092 | memcpy(&c->Header.LUN, &ioc->LUN_info, sizeof(c->Header.LUN)); |
edd16368 SC |
6093 | memcpy(&c->Request, &ioc->Request, sizeof(c->Request)); |
6094 | if (ioc->buf_size > 0) { | |
6095 | int i; | |
6096 | for (i = 0; i < sg_used; i++) { | |
50a0decf | 6097 | temp64 = pci_map_single(h->pdev, buff[i], |
edd16368 | 6098 | buff_size[i], PCI_DMA_BIDIRECTIONAL); |
50a0decf SC |
6099 | if (dma_mapping_error(&h->pdev->dev, |
6100 | (dma_addr_t) temp64)) { | |
6101 | c->SG[i].Addr = cpu_to_le64(0); | |
6102 | c->SG[i].Len = cpu_to_le32(0); | |
bcc48ffa SC |
6103 | hpsa_pci_unmap(h->pdev, c, i, |
6104 | PCI_DMA_BIDIRECTIONAL); | |
6105 | status = -ENOMEM; | |
e2d4a1f6 | 6106 | goto cleanup0; |
bcc48ffa | 6107 | } |
50a0decf SC |
6108 | c->SG[i].Addr = cpu_to_le64(temp64); |
6109 | c->SG[i].Len = cpu_to_le32(buff_size[i]); | |
6110 | c->SG[i].Ext = cpu_to_le32(0); | |
edd16368 | 6111 | } |
50a0decf | 6112 | c->SG[--i].Ext = cpu_to_le32(HPSA_SG_LAST); |
edd16368 | 6113 | } |
25163bd5 | 6114 | status = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); |
b03a7771 SC |
6115 | if (sg_used) |
6116 | hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL); | |
edd16368 | 6117 | check_ioctl_unit_attention(h, c); |
25163bd5 WS |
6118 | if (status) { |
6119 | status = -EIO; | |
6120 | goto cleanup0; | |
6121 | } | |
6122 | ||
edd16368 SC |
6123 | /* Copy the error information out */ |
6124 | memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info)); | |
6125 | if (copy_to_user(argp, ioc, sizeof(*ioc))) { | |
edd16368 | 6126 | status = -EFAULT; |
e2d4a1f6 | 6127 | goto cleanup0; |
edd16368 | 6128 | } |
9233fb10 | 6129 | if ((ioc->Request.Type.Direction & XFER_READ) && ioc->buf_size > 0) { |
2b08b3e9 DB |
6130 | int i; |
6131 | ||
edd16368 SC |
6132 | /* Copy the data out of the buffer we created */ |
6133 | BYTE __user *ptr = ioc->buf; | |
6134 | for (i = 0; i < sg_used; i++) { | |
6135 | if (copy_to_user(ptr, buff[i], buff_size[i])) { | |
edd16368 | 6136 | status = -EFAULT; |
e2d4a1f6 | 6137 | goto cleanup0; |
edd16368 SC |
6138 | } |
6139 | ptr += buff_size[i]; | |
6140 | } | |
6141 | } | |
edd16368 | 6142 | status = 0; |
e2d4a1f6 | 6143 | cleanup0: |
45fcb86e | 6144 | cmd_free(h, c); |
edd16368 SC |
6145 | cleanup1: |
6146 | if (buff) { | |
2b08b3e9 DB |
6147 | int i; |
6148 | ||
edd16368 SC |
6149 | for (i = 0; i < sg_used; i++) |
6150 | kfree(buff[i]); | |
6151 | kfree(buff); | |
6152 | } | |
6153 | kfree(buff_size); | |
6154 | kfree(ioc); | |
6155 | return status; | |
6156 | } | |
6157 | ||
6158 | static void check_ioctl_unit_attention(struct ctlr_info *h, | |
6159 | struct CommandList *c) | |
6160 | { | |
6161 | if (c->err_info->CommandStatus == CMD_TARGET_STATUS && | |
6162 | c->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION) | |
6163 | (void) check_for_unit_attention(h, c); | |
6164 | } | |
0390f0c0 | 6165 | |
edd16368 SC |
6166 | /* |
6167 | * ioctl | |
6168 | */ | |
42a91641 | 6169 | static int hpsa_ioctl(struct scsi_device *dev, int cmd, void __user *arg) |
edd16368 SC |
6170 | { |
6171 | struct ctlr_info *h; | |
6172 | void __user *argp = (void __user *)arg; | |
0390f0c0 | 6173 | int rc; |
edd16368 SC |
6174 | |
6175 | h = sdev_to_hba(dev); | |
6176 | ||
6177 | switch (cmd) { | |
6178 | case CCISS_DEREGDISK: | |
6179 | case CCISS_REGNEWDISK: | |
6180 | case CCISS_REGNEWD: | |
a08a8471 | 6181 | hpsa_scan_start(h->scsi_host); |
edd16368 SC |
6182 | return 0; |
6183 | case CCISS_GETPCIINFO: | |
6184 | return hpsa_getpciinfo_ioctl(h, argp); | |
6185 | case CCISS_GETDRIVVER: | |
6186 | return hpsa_getdrivver_ioctl(h, argp); | |
6187 | case CCISS_PASSTHRU: | |
34f0c627 | 6188 | if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0) |
0390f0c0 SC |
6189 | return -EAGAIN; |
6190 | rc = hpsa_passthru_ioctl(h, argp); | |
34f0c627 | 6191 | atomic_inc(&h->passthru_cmds_avail); |
0390f0c0 | 6192 | return rc; |
edd16368 | 6193 | case CCISS_BIG_PASSTHRU: |
34f0c627 | 6194 | if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0) |
0390f0c0 SC |
6195 | return -EAGAIN; |
6196 | rc = hpsa_big_passthru_ioctl(h, argp); | |
34f0c627 | 6197 | atomic_inc(&h->passthru_cmds_avail); |
0390f0c0 | 6198 | return rc; |
edd16368 SC |
6199 | default: |
6200 | return -ENOTTY; | |
6201 | } | |
6202 | } | |
6203 | ||
bf43caf3 | 6204 | static void hpsa_send_host_reset(struct ctlr_info *h, unsigned char *scsi3addr, |
6f039790 | 6205 | u8 reset_type) |
64670ac8 SC |
6206 | { |
6207 | struct CommandList *c; | |
6208 | ||
6209 | c = cmd_alloc(h); | |
bf43caf3 | 6210 | |
a2dac136 SC |
6211 | /* fill_cmd can't fail here, no data buffer to map */ |
6212 | (void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0, | |
64670ac8 SC |
6213 | RAID_CTLR_LUNID, TYPE_MSG); |
6214 | c->Request.CDB[1] = reset_type; /* fill_cmd defaults to target reset */ | |
6215 | c->waiting = NULL; | |
6216 | enqueue_cmd_and_start_io(h, c); | |
6217 | /* Don't wait for completion, the reset won't complete. Don't free | |
6218 | * the command either. This is the last command we will send before | |
6219 | * re-initializing everything, so it doesn't matter and won't leak. | |
6220 | */ | |
bf43caf3 | 6221 | return; |
64670ac8 SC |
6222 | } |
6223 | ||
a2dac136 | 6224 | static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h, |
b7bb24eb | 6225 | void *buff, size_t size, u16 page_code, unsigned char *scsi3addr, |
edd16368 SC |
6226 | int cmd_type) |
6227 | { | |
6228 | int pci_dir = XFER_NONE; | |
9b5c48c2 | 6229 | u64 tag; /* for commands to be aborted */ |
edd16368 SC |
6230 | |
6231 | c->cmd_type = CMD_IOCTL_PEND; | |
a58e7e53 | 6232 | c->scsi_cmd = SCSI_CMD_BUSY; |
edd16368 SC |
6233 | c->Header.ReplyQueue = 0; |
6234 | if (buff != NULL && size > 0) { | |
6235 | c->Header.SGList = 1; | |
50a0decf | 6236 | c->Header.SGTotal = cpu_to_le16(1); |
edd16368 SC |
6237 | } else { |
6238 | c->Header.SGList = 0; | |
50a0decf | 6239 | c->Header.SGTotal = cpu_to_le16(0); |
edd16368 | 6240 | } |
edd16368 SC |
6241 | memcpy(c->Header.LUN.LunAddrBytes, scsi3addr, 8); |
6242 | ||
edd16368 SC |
6243 | if (cmd_type == TYPE_CMD) { |
6244 | switch (cmd) { | |
6245 | case HPSA_INQUIRY: | |
6246 | /* are we trying to read a vital product page */ | |
b7bb24eb | 6247 | if (page_code & VPD_PAGE) { |
edd16368 | 6248 | c->Request.CDB[1] = 0x01; |
b7bb24eb | 6249 | c->Request.CDB[2] = (page_code & 0xff); |
edd16368 SC |
6250 | } |
6251 | c->Request.CDBLen = 6; | |
a505b86f SC |
6252 | c->Request.type_attr_dir = |
6253 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
edd16368 SC |
6254 | c->Request.Timeout = 0; |
6255 | c->Request.CDB[0] = HPSA_INQUIRY; | |
6256 | c->Request.CDB[4] = size & 0xFF; | |
6257 | break; | |
6258 | case HPSA_REPORT_LOG: | |
6259 | case HPSA_REPORT_PHYS: | |
6260 | /* Talking to controller so It's a physical command | |
6261 | mode = 00 target = 0. Nothing to write. | |
6262 | */ | |
6263 | c->Request.CDBLen = 12; | |
a505b86f SC |
6264 | c->Request.type_attr_dir = |
6265 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
edd16368 SC |
6266 | c->Request.Timeout = 0; |
6267 | c->Request.CDB[0] = cmd; | |
6268 | c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */ | |
6269 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6270 | c->Request.CDB[8] = (size >> 8) & 0xFF; | |
6271 | c->Request.CDB[9] = size & 0xFF; | |
6272 | break; | |
edd16368 SC |
6273 | case HPSA_CACHE_FLUSH: |
6274 | c->Request.CDBLen = 12; | |
a505b86f SC |
6275 | c->Request.type_attr_dir = |
6276 | TYPE_ATTR_DIR(cmd_type, | |
6277 | ATTR_SIMPLE, XFER_WRITE); | |
edd16368 SC |
6278 | c->Request.Timeout = 0; |
6279 | c->Request.CDB[0] = BMIC_WRITE; | |
6280 | c->Request.CDB[6] = BMIC_CACHE_FLUSH; | |
bb158eab SC |
6281 | c->Request.CDB[7] = (size >> 8) & 0xFF; |
6282 | c->Request.CDB[8] = size & 0xFF; | |
edd16368 SC |
6283 | break; |
6284 | case TEST_UNIT_READY: | |
6285 | c->Request.CDBLen = 6; | |
a505b86f SC |
6286 | c->Request.type_attr_dir = |
6287 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE); | |
edd16368 SC |
6288 | c->Request.Timeout = 0; |
6289 | break; | |
283b4a9b SC |
6290 | case HPSA_GET_RAID_MAP: |
6291 | c->Request.CDBLen = 12; | |
a505b86f SC |
6292 | c->Request.type_attr_dir = |
6293 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
283b4a9b SC |
6294 | c->Request.Timeout = 0; |
6295 | c->Request.CDB[0] = HPSA_CISS_READ; | |
6296 | c->Request.CDB[1] = cmd; | |
6297 | c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */ | |
6298 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6299 | c->Request.CDB[8] = (size >> 8) & 0xFF; | |
6300 | c->Request.CDB[9] = size & 0xFF; | |
6301 | break; | |
316b221a SC |
6302 | case BMIC_SENSE_CONTROLLER_PARAMETERS: |
6303 | c->Request.CDBLen = 10; | |
a505b86f SC |
6304 | c->Request.type_attr_dir = |
6305 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
316b221a SC |
6306 | c->Request.Timeout = 0; |
6307 | c->Request.CDB[0] = BMIC_READ; | |
6308 | c->Request.CDB[6] = BMIC_SENSE_CONTROLLER_PARAMETERS; | |
6309 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6310 | c->Request.CDB[8] = (size >> 8) & 0xFF; | |
6311 | break; | |
03383736 DB |
6312 | case BMIC_IDENTIFY_PHYSICAL_DEVICE: |
6313 | c->Request.CDBLen = 10; | |
6314 | c->Request.type_attr_dir = | |
6315 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
6316 | c->Request.Timeout = 0; | |
6317 | c->Request.CDB[0] = BMIC_READ; | |
6318 | c->Request.CDB[6] = BMIC_IDENTIFY_PHYSICAL_DEVICE; | |
6319 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6320 | c->Request.CDB[8] = (size >> 8) & 0XFF; | |
6321 | break; | |
edd16368 SC |
6322 | default: |
6323 | dev_warn(&h->pdev->dev, "unknown command 0x%c\n", cmd); | |
6324 | BUG(); | |
a2dac136 | 6325 | return -1; |
edd16368 SC |
6326 | } |
6327 | } else if (cmd_type == TYPE_MSG) { | |
6328 | switch (cmd) { | |
6329 | ||
6330 | case HPSA_DEVICE_RESET_MSG: | |
6331 | c->Request.CDBLen = 16; | |
a505b86f SC |
6332 | c->Request.type_attr_dir = |
6333 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE); | |
edd16368 | 6334 | c->Request.Timeout = 0; /* Don't time out */ |
64670ac8 SC |
6335 | memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB)); |
6336 | c->Request.CDB[0] = cmd; | |
21e89afd | 6337 | c->Request.CDB[1] = HPSA_RESET_TYPE_LUN; |
edd16368 SC |
6338 | /* If bytes 4-7 are zero, it means reset the */ |
6339 | /* LunID device */ | |
6340 | c->Request.CDB[4] = 0x00; | |
6341 | c->Request.CDB[5] = 0x00; | |
6342 | c->Request.CDB[6] = 0x00; | |
6343 | c->Request.CDB[7] = 0x00; | |
75167d2c SC |
6344 | break; |
6345 | case HPSA_ABORT_MSG: | |
9b5c48c2 | 6346 | memcpy(&tag, buff, sizeof(tag)); |
2b08b3e9 | 6347 | dev_dbg(&h->pdev->dev, |
9b5c48c2 SC |
6348 | "Abort Tag:0x%016llx using rqst Tag:0x%016llx", |
6349 | tag, c->Header.tag); | |
75167d2c | 6350 | c->Request.CDBLen = 16; |
a505b86f SC |
6351 | c->Request.type_attr_dir = |
6352 | TYPE_ATTR_DIR(cmd_type, | |
6353 | ATTR_SIMPLE, XFER_WRITE); | |
75167d2c SC |
6354 | c->Request.Timeout = 0; /* Don't time out */ |
6355 | c->Request.CDB[0] = HPSA_TASK_MANAGEMENT; | |
6356 | c->Request.CDB[1] = HPSA_TMF_ABORT_TASK; | |
6357 | c->Request.CDB[2] = 0x00; /* reserved */ | |
6358 | c->Request.CDB[3] = 0x00; /* reserved */ | |
6359 | /* Tag to abort goes in CDB[4]-CDB[11] */ | |
9b5c48c2 | 6360 | memcpy(&c->Request.CDB[4], &tag, sizeof(tag)); |
75167d2c SC |
6361 | c->Request.CDB[12] = 0x00; /* reserved */ |
6362 | c->Request.CDB[13] = 0x00; /* reserved */ | |
6363 | c->Request.CDB[14] = 0x00; /* reserved */ | |
6364 | c->Request.CDB[15] = 0x00; /* reserved */ | |
edd16368 | 6365 | break; |
edd16368 SC |
6366 | default: |
6367 | dev_warn(&h->pdev->dev, "unknown message type %d\n", | |
6368 | cmd); | |
6369 | BUG(); | |
6370 | } | |
6371 | } else { | |
6372 | dev_warn(&h->pdev->dev, "unknown command type %d\n", cmd_type); | |
6373 | BUG(); | |
6374 | } | |
6375 | ||
a505b86f | 6376 | switch (GET_DIR(c->Request.type_attr_dir)) { |
edd16368 SC |
6377 | case XFER_READ: |
6378 | pci_dir = PCI_DMA_FROMDEVICE; | |
6379 | break; | |
6380 | case XFER_WRITE: | |
6381 | pci_dir = PCI_DMA_TODEVICE; | |
6382 | break; | |
6383 | case XFER_NONE: | |
6384 | pci_dir = PCI_DMA_NONE; | |
6385 | break; | |
6386 | default: | |
6387 | pci_dir = PCI_DMA_BIDIRECTIONAL; | |
6388 | } | |
a2dac136 SC |
6389 | if (hpsa_map_one(h->pdev, c, buff, size, pci_dir)) |
6390 | return -1; | |
6391 | return 0; | |
edd16368 SC |
6392 | } |
6393 | ||
6394 | /* | |
6395 | * Map (physical) PCI mem into (virtual) kernel space | |
6396 | */ | |
6397 | static void __iomem *remap_pci_mem(ulong base, ulong size) | |
6398 | { | |
6399 | ulong page_base = ((ulong) base) & PAGE_MASK; | |
6400 | ulong page_offs = ((ulong) base) - page_base; | |
088ba34c SC |
6401 | void __iomem *page_remapped = ioremap_nocache(page_base, |
6402 | page_offs + size); | |
edd16368 SC |
6403 | |
6404 | return page_remapped ? (page_remapped + page_offs) : NULL; | |
6405 | } | |
6406 | ||
254f796b | 6407 | static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q) |
edd16368 | 6408 | { |
254f796b | 6409 | return h->access.command_completed(h, q); |
edd16368 SC |
6410 | } |
6411 | ||
900c5440 | 6412 | static inline bool interrupt_pending(struct ctlr_info *h) |
edd16368 SC |
6413 | { |
6414 | return h->access.intr_pending(h); | |
6415 | } | |
6416 | ||
6417 | static inline long interrupt_not_for_us(struct ctlr_info *h) | |
6418 | { | |
10f66018 SC |
6419 | return (h->access.intr_pending(h) == 0) || |
6420 | (h->interrupts_enabled == 0); | |
edd16368 SC |
6421 | } |
6422 | ||
01a02ffc SC |
6423 | static inline int bad_tag(struct ctlr_info *h, u32 tag_index, |
6424 | u32 raw_tag) | |
edd16368 SC |
6425 | { |
6426 | if (unlikely(tag_index >= h->nr_cmds)) { | |
6427 | dev_warn(&h->pdev->dev, "bad tag 0x%08x ignored.\n", raw_tag); | |
6428 | return 1; | |
6429 | } | |
6430 | return 0; | |
6431 | } | |
6432 | ||
5a3d16f5 | 6433 | static inline void finish_cmd(struct CommandList *c) |
edd16368 | 6434 | { |
e85c5974 | 6435 | dial_up_lockup_detection_on_fw_flash_complete(c->h, c); |
c349775e ST |
6436 | if (likely(c->cmd_type == CMD_IOACCEL1 || c->cmd_type == CMD_SCSI |
6437 | || c->cmd_type == CMD_IOACCEL2)) | |
1fb011fb | 6438 | complete_scsi_command(c); |
8be986cc | 6439 | else if (c->cmd_type == CMD_IOCTL_PEND || c->cmd_type == IOACCEL2_TMF) |
edd16368 | 6440 | complete(c->waiting); |
a104c99f SC |
6441 | } |
6442 | ||
a9a3a273 SC |
6443 | |
6444 | static inline u32 hpsa_tag_discard_error_bits(struct ctlr_info *h, u32 tag) | |
a104c99f | 6445 | { |
a9a3a273 SC |
6446 | #define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1) |
6447 | #define HPSA_SIMPLE_ERROR_BITS 0x03 | |
960a30e7 | 6448 | if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) |
a9a3a273 SC |
6449 | return tag & ~HPSA_SIMPLE_ERROR_BITS; |
6450 | return tag & ~HPSA_PERF_ERROR_BITS; | |
a104c99f SC |
6451 | } |
6452 | ||
303932fd | 6453 | /* process completion of an indexed ("direct lookup") command */ |
1d94f94d | 6454 | static inline void process_indexed_cmd(struct ctlr_info *h, |
303932fd DB |
6455 | u32 raw_tag) |
6456 | { | |
6457 | u32 tag_index; | |
6458 | struct CommandList *c; | |
6459 | ||
f2405db8 | 6460 | tag_index = raw_tag >> DIRECT_LOOKUP_SHIFT; |
1d94f94d SC |
6461 | if (!bad_tag(h, tag_index, raw_tag)) { |
6462 | c = h->cmd_pool + tag_index; | |
6463 | finish_cmd(c); | |
6464 | } | |
303932fd DB |
6465 | } |
6466 | ||
64670ac8 SC |
6467 | /* Some controllers, like p400, will give us one interrupt |
6468 | * after a soft reset, even if we turned interrupts off. | |
6469 | * Only need to check for this in the hpsa_xxx_discard_completions | |
6470 | * functions. | |
6471 | */ | |
6472 | static int ignore_bogus_interrupt(struct ctlr_info *h) | |
6473 | { | |
6474 | if (likely(!reset_devices)) | |
6475 | return 0; | |
6476 | ||
6477 | if (likely(h->interrupts_enabled)) | |
6478 | return 0; | |
6479 | ||
6480 | dev_info(&h->pdev->dev, "Received interrupt while interrupts disabled " | |
6481 | "(known firmware bug.) Ignoring.\n"); | |
6482 | ||
6483 | return 1; | |
6484 | } | |
6485 | ||
254f796b MG |
6486 | /* |
6487 | * Convert &h->q[x] (passed to interrupt handlers) back to h. | |
6488 | * Relies on (h-q[x] == x) being true for x such that | |
6489 | * 0 <= x < MAX_REPLY_QUEUES. | |
6490 | */ | |
6491 | static struct ctlr_info *queue_to_hba(u8 *queue) | |
64670ac8 | 6492 | { |
254f796b MG |
6493 | return container_of((queue - *queue), struct ctlr_info, q[0]); |
6494 | } | |
6495 | ||
6496 | static irqreturn_t hpsa_intx_discard_completions(int irq, void *queue) | |
6497 | { | |
6498 | struct ctlr_info *h = queue_to_hba(queue); | |
6499 | u8 q = *(u8 *) queue; | |
64670ac8 SC |
6500 | u32 raw_tag; |
6501 | ||
6502 | if (ignore_bogus_interrupt(h)) | |
6503 | return IRQ_NONE; | |
6504 | ||
6505 | if (interrupt_not_for_us(h)) | |
6506 | return IRQ_NONE; | |
a0c12413 | 6507 | h->last_intr_timestamp = get_jiffies_64(); |
64670ac8 | 6508 | while (interrupt_pending(h)) { |
254f796b | 6509 | raw_tag = get_next_completion(h, q); |
64670ac8 | 6510 | while (raw_tag != FIFO_EMPTY) |
254f796b | 6511 | raw_tag = next_command(h, q); |
64670ac8 | 6512 | } |
64670ac8 SC |
6513 | return IRQ_HANDLED; |
6514 | } | |
6515 | ||
254f796b | 6516 | static irqreturn_t hpsa_msix_discard_completions(int irq, void *queue) |
64670ac8 | 6517 | { |
254f796b | 6518 | struct ctlr_info *h = queue_to_hba(queue); |
64670ac8 | 6519 | u32 raw_tag; |
254f796b | 6520 | u8 q = *(u8 *) queue; |
64670ac8 SC |
6521 | |
6522 | if (ignore_bogus_interrupt(h)) | |
6523 | return IRQ_NONE; | |
6524 | ||
a0c12413 | 6525 | h->last_intr_timestamp = get_jiffies_64(); |
254f796b | 6526 | raw_tag = get_next_completion(h, q); |
64670ac8 | 6527 | while (raw_tag != FIFO_EMPTY) |
254f796b | 6528 | raw_tag = next_command(h, q); |
64670ac8 SC |
6529 | return IRQ_HANDLED; |
6530 | } | |
6531 | ||
254f796b | 6532 | static irqreturn_t do_hpsa_intr_intx(int irq, void *queue) |
edd16368 | 6533 | { |
254f796b | 6534 | struct ctlr_info *h = queue_to_hba((u8 *) queue); |
303932fd | 6535 | u32 raw_tag; |
254f796b | 6536 | u8 q = *(u8 *) queue; |
edd16368 SC |
6537 | |
6538 | if (interrupt_not_for_us(h)) | |
6539 | return IRQ_NONE; | |
a0c12413 | 6540 | h->last_intr_timestamp = get_jiffies_64(); |
10f66018 | 6541 | while (interrupt_pending(h)) { |
254f796b | 6542 | raw_tag = get_next_completion(h, q); |
10f66018 | 6543 | while (raw_tag != FIFO_EMPTY) { |
f2405db8 | 6544 | process_indexed_cmd(h, raw_tag); |
254f796b | 6545 | raw_tag = next_command(h, q); |
10f66018 SC |
6546 | } |
6547 | } | |
10f66018 SC |
6548 | return IRQ_HANDLED; |
6549 | } | |
6550 | ||
254f796b | 6551 | static irqreturn_t do_hpsa_intr_msi(int irq, void *queue) |
10f66018 | 6552 | { |
254f796b | 6553 | struct ctlr_info *h = queue_to_hba(queue); |
10f66018 | 6554 | u32 raw_tag; |
254f796b | 6555 | u8 q = *(u8 *) queue; |
10f66018 | 6556 | |
a0c12413 | 6557 | h->last_intr_timestamp = get_jiffies_64(); |
254f796b | 6558 | raw_tag = get_next_completion(h, q); |
303932fd | 6559 | while (raw_tag != FIFO_EMPTY) { |
f2405db8 | 6560 | process_indexed_cmd(h, raw_tag); |
254f796b | 6561 | raw_tag = next_command(h, q); |
edd16368 | 6562 | } |
edd16368 SC |
6563 | return IRQ_HANDLED; |
6564 | } | |
6565 | ||
a9a3a273 SC |
6566 | /* Send a message CDB to the firmware. Careful, this only works |
6567 | * in simple mode, not performant mode due to the tag lookup. | |
6568 | * We only ever use this immediately after a controller reset. | |
6569 | */ | |
6f039790 GKH |
6570 | static int hpsa_message(struct pci_dev *pdev, unsigned char opcode, |
6571 | unsigned char type) | |
edd16368 SC |
6572 | { |
6573 | struct Command { | |
6574 | struct CommandListHeader CommandHeader; | |
6575 | struct RequestBlock Request; | |
6576 | struct ErrDescriptor ErrorDescriptor; | |
6577 | }; | |
6578 | struct Command *cmd; | |
6579 | static const size_t cmd_sz = sizeof(*cmd) + | |
6580 | sizeof(cmd->ErrorDescriptor); | |
6581 | dma_addr_t paddr64; | |
2b08b3e9 DB |
6582 | __le32 paddr32; |
6583 | u32 tag; | |
edd16368 SC |
6584 | void __iomem *vaddr; |
6585 | int i, err; | |
6586 | ||
6587 | vaddr = pci_ioremap_bar(pdev, 0); | |
6588 | if (vaddr == NULL) | |
6589 | return -ENOMEM; | |
6590 | ||
6591 | /* The Inbound Post Queue only accepts 32-bit physical addresses for the | |
6592 | * CCISS commands, so they must be allocated from the lower 4GiB of | |
6593 | * memory. | |
6594 | */ | |
6595 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); | |
6596 | if (err) { | |
6597 | iounmap(vaddr); | |
1eaec8f3 | 6598 | return err; |
edd16368 SC |
6599 | } |
6600 | ||
6601 | cmd = pci_alloc_consistent(pdev, cmd_sz, &paddr64); | |
6602 | if (cmd == NULL) { | |
6603 | iounmap(vaddr); | |
6604 | return -ENOMEM; | |
6605 | } | |
6606 | ||
6607 | /* This must fit, because of the 32-bit consistent DMA mask. Also, | |
6608 | * although there's no guarantee, we assume that the address is at | |
6609 | * least 4-byte aligned (most likely, it's page-aligned). | |
6610 | */ | |
2b08b3e9 | 6611 | paddr32 = cpu_to_le32(paddr64); |
edd16368 SC |
6612 | |
6613 | cmd->CommandHeader.ReplyQueue = 0; | |
6614 | cmd->CommandHeader.SGList = 0; | |
50a0decf | 6615 | cmd->CommandHeader.SGTotal = cpu_to_le16(0); |
2b08b3e9 | 6616 | cmd->CommandHeader.tag = cpu_to_le64(paddr64); |
edd16368 SC |
6617 | memset(&cmd->CommandHeader.LUN.LunAddrBytes, 0, 8); |
6618 | ||
6619 | cmd->Request.CDBLen = 16; | |
a505b86f SC |
6620 | cmd->Request.type_attr_dir = |
6621 | TYPE_ATTR_DIR(TYPE_MSG, ATTR_HEADOFQUEUE, XFER_NONE); | |
edd16368 SC |
6622 | cmd->Request.Timeout = 0; /* Don't time out */ |
6623 | cmd->Request.CDB[0] = opcode; | |
6624 | cmd->Request.CDB[1] = type; | |
6625 | memset(&cmd->Request.CDB[2], 0, 14); /* rest of the CDB is reserved */ | |
50a0decf | 6626 | cmd->ErrorDescriptor.Addr = |
2b08b3e9 | 6627 | cpu_to_le64((le32_to_cpu(paddr32) + sizeof(*cmd))); |
50a0decf | 6628 | cmd->ErrorDescriptor.Len = cpu_to_le32(sizeof(struct ErrorInfo)); |
edd16368 | 6629 | |
2b08b3e9 | 6630 | writel(le32_to_cpu(paddr32), vaddr + SA5_REQUEST_PORT_OFFSET); |
edd16368 SC |
6631 | |
6632 | for (i = 0; i < HPSA_MSG_SEND_RETRY_LIMIT; i++) { | |
6633 | tag = readl(vaddr + SA5_REPLY_PORT_OFFSET); | |
2b08b3e9 | 6634 | if ((tag & ~HPSA_SIMPLE_ERROR_BITS) == paddr64) |
edd16368 SC |
6635 | break; |
6636 | msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS); | |
6637 | } | |
6638 | ||
6639 | iounmap(vaddr); | |
6640 | ||
6641 | /* we leak the DMA buffer here ... no choice since the controller could | |
6642 | * still complete the command. | |
6643 | */ | |
6644 | if (i == HPSA_MSG_SEND_RETRY_LIMIT) { | |
6645 | dev_err(&pdev->dev, "controller message %02x:%02x timed out\n", | |
6646 | opcode, type); | |
6647 | return -ETIMEDOUT; | |
6648 | } | |
6649 | ||
6650 | pci_free_consistent(pdev, cmd_sz, cmd, paddr64); | |
6651 | ||
6652 | if (tag & HPSA_ERROR_BIT) { | |
6653 | dev_err(&pdev->dev, "controller message %02x:%02x failed\n", | |
6654 | opcode, type); | |
6655 | return -EIO; | |
6656 | } | |
6657 | ||
6658 | dev_info(&pdev->dev, "controller message %02x:%02x succeeded\n", | |
6659 | opcode, type); | |
6660 | return 0; | |
6661 | } | |
6662 | ||
edd16368 SC |
6663 | #define hpsa_noop(p) hpsa_message(p, 3, 0) |
6664 | ||
1df8552a | 6665 | static int hpsa_controller_hard_reset(struct pci_dev *pdev, |
42a91641 | 6666 | void __iomem *vaddr, u32 use_doorbell) |
1df8552a | 6667 | { |
1df8552a SC |
6668 | |
6669 | if (use_doorbell) { | |
6670 | /* For everything after the P600, the PCI power state method | |
6671 | * of resetting the controller doesn't work, so we have this | |
6672 | * other way using the doorbell register. | |
6673 | */ | |
6674 | dev_info(&pdev->dev, "using doorbell to reset controller\n"); | |
cf0b08d0 | 6675 | writel(use_doorbell, vaddr + SA5_DOORBELL); |
85009239 | 6676 | |
00701a96 | 6677 | /* PMC hardware guys tell us we need a 10 second delay after |
85009239 SC |
6678 | * doorbell reset and before any attempt to talk to the board |
6679 | * at all to ensure that this actually works and doesn't fall | |
6680 | * over in some weird corner cases. | |
6681 | */ | |
00701a96 | 6682 | msleep(10000); |
1df8552a SC |
6683 | } else { /* Try to do it the PCI power state way */ |
6684 | ||
6685 | /* Quoting from the Open CISS Specification: "The Power | |
6686 | * Management Control/Status Register (CSR) controls the power | |
6687 | * state of the device. The normal operating state is D0, | |
6688 | * CSR=00h. The software off state is D3, CSR=03h. To reset | |
6689 | * the controller, place the interface device in D3 then to D0, | |
6690 | * this causes a secondary PCI reset which will reset the | |
6691 | * controller." */ | |
2662cab8 DB |
6692 | |
6693 | int rc = 0; | |
6694 | ||
1df8552a | 6695 | dev_info(&pdev->dev, "using PCI PM to reset controller\n"); |
2662cab8 | 6696 | |
1df8552a | 6697 | /* enter the D3hot power management state */ |
2662cab8 DB |
6698 | rc = pci_set_power_state(pdev, PCI_D3hot); |
6699 | if (rc) | |
6700 | return rc; | |
1df8552a SC |
6701 | |
6702 | msleep(500); | |
6703 | ||
6704 | /* enter the D0 power management state */ | |
2662cab8 DB |
6705 | rc = pci_set_power_state(pdev, PCI_D0); |
6706 | if (rc) | |
6707 | return rc; | |
c4853efe MM |
6708 | |
6709 | /* | |
6710 | * The P600 requires a small delay when changing states. | |
6711 | * Otherwise we may think the board did not reset and we bail. | |
6712 | * This for kdump only and is particular to the P600. | |
6713 | */ | |
6714 | msleep(500); | |
1df8552a SC |
6715 | } |
6716 | return 0; | |
6717 | } | |
6718 | ||
6f039790 | 6719 | static void init_driver_version(char *driver_version, int len) |
580ada3c SC |
6720 | { |
6721 | memset(driver_version, 0, len); | |
f79cfec6 | 6722 | strncpy(driver_version, HPSA " " HPSA_DRIVER_VERSION, len - 1); |
580ada3c SC |
6723 | } |
6724 | ||
6f039790 | 6725 | static int write_driver_ver_to_cfgtable(struct CfgTable __iomem *cfgtable) |
580ada3c SC |
6726 | { |
6727 | char *driver_version; | |
6728 | int i, size = sizeof(cfgtable->driver_version); | |
6729 | ||
6730 | driver_version = kmalloc(size, GFP_KERNEL); | |
6731 | if (!driver_version) | |
6732 | return -ENOMEM; | |
6733 | ||
6734 | init_driver_version(driver_version, size); | |
6735 | for (i = 0; i < size; i++) | |
6736 | writeb(driver_version[i], &cfgtable->driver_version[i]); | |
6737 | kfree(driver_version); | |
6738 | return 0; | |
6739 | } | |
6740 | ||
6f039790 GKH |
6741 | static void read_driver_ver_from_cfgtable(struct CfgTable __iomem *cfgtable, |
6742 | unsigned char *driver_ver) | |
580ada3c SC |
6743 | { |
6744 | int i; | |
6745 | ||
6746 | for (i = 0; i < sizeof(cfgtable->driver_version); i++) | |
6747 | driver_ver[i] = readb(&cfgtable->driver_version[i]); | |
6748 | } | |
6749 | ||
6f039790 | 6750 | static int controller_reset_failed(struct CfgTable __iomem *cfgtable) |
580ada3c SC |
6751 | { |
6752 | ||
6753 | char *driver_ver, *old_driver_ver; | |
6754 | int rc, size = sizeof(cfgtable->driver_version); | |
6755 | ||
6756 | old_driver_ver = kmalloc(2 * size, GFP_KERNEL); | |
6757 | if (!old_driver_ver) | |
6758 | return -ENOMEM; | |
6759 | driver_ver = old_driver_ver + size; | |
6760 | ||
6761 | /* After a reset, the 32 bytes of "driver version" in the cfgtable | |
6762 | * should have been changed, otherwise we know the reset failed. | |
6763 | */ | |
6764 | init_driver_version(old_driver_ver, size); | |
6765 | read_driver_ver_from_cfgtable(cfgtable, driver_ver); | |
6766 | rc = !memcmp(driver_ver, old_driver_ver, size); | |
6767 | kfree(old_driver_ver); | |
6768 | return rc; | |
6769 | } | |
edd16368 | 6770 | /* This does a hard reset of the controller using PCI power management |
1df8552a | 6771 | * states or the using the doorbell register. |
edd16368 | 6772 | */ |
6b6c1cd7 | 6773 | static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev, u32 board_id) |
edd16368 | 6774 | { |
1df8552a SC |
6775 | u64 cfg_offset; |
6776 | u32 cfg_base_addr; | |
6777 | u64 cfg_base_addr_index; | |
6778 | void __iomem *vaddr; | |
6779 | unsigned long paddr; | |
580ada3c | 6780 | u32 misc_fw_support; |
270d05de | 6781 | int rc; |
1df8552a | 6782 | struct CfgTable __iomem *cfgtable; |
cf0b08d0 | 6783 | u32 use_doorbell; |
270d05de | 6784 | u16 command_register; |
edd16368 | 6785 | |
1df8552a SC |
6786 | /* For controllers as old as the P600, this is very nearly |
6787 | * the same thing as | |
edd16368 SC |
6788 | * |
6789 | * pci_save_state(pci_dev); | |
6790 | * pci_set_power_state(pci_dev, PCI_D3hot); | |
6791 | * pci_set_power_state(pci_dev, PCI_D0); | |
6792 | * pci_restore_state(pci_dev); | |
6793 | * | |
1df8552a SC |
6794 | * For controllers newer than the P600, the pci power state |
6795 | * method of resetting doesn't work so we have another way | |
6796 | * using the doorbell register. | |
edd16368 | 6797 | */ |
18867659 | 6798 | |
60f923b9 RE |
6799 | if (!ctlr_is_resettable(board_id)) { |
6800 | dev_warn(&pdev->dev, "Controller not resettable\n"); | |
25c1e56a SC |
6801 | return -ENODEV; |
6802 | } | |
46380786 SC |
6803 | |
6804 | /* if controller is soft- but not hard resettable... */ | |
6805 | if (!ctlr_is_hard_resettable(board_id)) | |
6806 | return -ENOTSUPP; /* try soft reset later. */ | |
18867659 | 6807 | |
270d05de SC |
6808 | /* Save the PCI command register */ |
6809 | pci_read_config_word(pdev, 4, &command_register); | |
270d05de | 6810 | pci_save_state(pdev); |
edd16368 | 6811 | |
1df8552a SC |
6812 | /* find the first memory BAR, so we can find the cfg table */ |
6813 | rc = hpsa_pci_find_memory_BAR(pdev, &paddr); | |
6814 | if (rc) | |
6815 | return rc; | |
6816 | vaddr = remap_pci_mem(paddr, 0x250); | |
6817 | if (!vaddr) | |
6818 | return -ENOMEM; | |
edd16368 | 6819 | |
1df8552a SC |
6820 | /* find cfgtable in order to check if reset via doorbell is supported */ |
6821 | rc = hpsa_find_cfg_addrs(pdev, vaddr, &cfg_base_addr, | |
6822 | &cfg_base_addr_index, &cfg_offset); | |
6823 | if (rc) | |
6824 | goto unmap_vaddr; | |
6825 | cfgtable = remap_pci_mem(pci_resource_start(pdev, | |
6826 | cfg_base_addr_index) + cfg_offset, sizeof(*cfgtable)); | |
6827 | if (!cfgtable) { | |
6828 | rc = -ENOMEM; | |
6829 | goto unmap_vaddr; | |
6830 | } | |
580ada3c SC |
6831 | rc = write_driver_ver_to_cfgtable(cfgtable); |
6832 | if (rc) | |
03741d95 | 6833 | goto unmap_cfgtable; |
edd16368 | 6834 | |
cf0b08d0 SC |
6835 | /* If reset via doorbell register is supported, use that. |
6836 | * There are two such methods. Favor the newest method. | |
6837 | */ | |
1df8552a | 6838 | misc_fw_support = readl(&cfgtable->misc_fw_support); |
cf0b08d0 SC |
6839 | use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET2; |
6840 | if (use_doorbell) { | |
6841 | use_doorbell = DOORBELL_CTLR_RESET2; | |
6842 | } else { | |
6843 | use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET; | |
6844 | if (use_doorbell) { | |
050f7147 SC |
6845 | dev_warn(&pdev->dev, |
6846 | "Soft reset not supported. Firmware update is required.\n"); | |
64670ac8 | 6847 | rc = -ENOTSUPP; /* try soft reset */ |
cf0b08d0 SC |
6848 | goto unmap_cfgtable; |
6849 | } | |
6850 | } | |
edd16368 | 6851 | |
1df8552a SC |
6852 | rc = hpsa_controller_hard_reset(pdev, vaddr, use_doorbell); |
6853 | if (rc) | |
6854 | goto unmap_cfgtable; | |
edd16368 | 6855 | |
270d05de | 6856 | pci_restore_state(pdev); |
270d05de | 6857 | pci_write_config_word(pdev, 4, command_register); |
edd16368 | 6858 | |
1df8552a SC |
6859 | /* Some devices (notably the HP Smart Array 5i Controller) |
6860 | need a little pause here */ | |
6861 | msleep(HPSA_POST_RESET_PAUSE_MSECS); | |
6862 | ||
fe5389c8 SC |
6863 | rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_READY); |
6864 | if (rc) { | |
6865 | dev_warn(&pdev->dev, | |
050f7147 | 6866 | "Failed waiting for board to become ready after hard reset\n"); |
fe5389c8 SC |
6867 | goto unmap_cfgtable; |
6868 | } | |
fe5389c8 | 6869 | |
580ada3c SC |
6870 | rc = controller_reset_failed(vaddr); |
6871 | if (rc < 0) | |
6872 | goto unmap_cfgtable; | |
6873 | if (rc) { | |
64670ac8 SC |
6874 | dev_warn(&pdev->dev, "Unable to successfully reset " |
6875 | "controller. Will try soft reset.\n"); | |
6876 | rc = -ENOTSUPP; | |
580ada3c | 6877 | } else { |
64670ac8 | 6878 | dev_info(&pdev->dev, "board ready after hard reset.\n"); |
1df8552a SC |
6879 | } |
6880 | ||
6881 | unmap_cfgtable: | |
6882 | iounmap(cfgtable); | |
6883 | ||
6884 | unmap_vaddr: | |
6885 | iounmap(vaddr); | |
6886 | return rc; | |
edd16368 SC |
6887 | } |
6888 | ||
6889 | /* | |
6890 | * We cannot read the structure directly, for portability we must use | |
6891 | * the io functions. | |
6892 | * This is for debug only. | |
6893 | */ | |
42a91641 | 6894 | static void print_cfg_table(struct device *dev, struct CfgTable __iomem *tb) |
edd16368 | 6895 | { |
58f8665c | 6896 | #ifdef HPSA_DEBUG |
edd16368 SC |
6897 | int i; |
6898 | char temp_name[17]; | |
6899 | ||
6900 | dev_info(dev, "Controller Configuration information\n"); | |
6901 | dev_info(dev, "------------------------------------\n"); | |
6902 | for (i = 0; i < 4; i++) | |
6903 | temp_name[i] = readb(&(tb->Signature[i])); | |
6904 | temp_name[4] = '\0'; | |
6905 | dev_info(dev, " Signature = %s\n", temp_name); | |
6906 | dev_info(dev, " Spec Number = %d\n", readl(&(tb->SpecValence))); | |
6907 | dev_info(dev, " Transport methods supported = 0x%x\n", | |
6908 | readl(&(tb->TransportSupport))); | |
6909 | dev_info(dev, " Transport methods active = 0x%x\n", | |
6910 | readl(&(tb->TransportActive))); | |
6911 | dev_info(dev, " Requested transport Method = 0x%x\n", | |
6912 | readl(&(tb->HostWrite.TransportRequest))); | |
6913 | dev_info(dev, " Coalesce Interrupt Delay = 0x%x\n", | |
6914 | readl(&(tb->HostWrite.CoalIntDelay))); | |
6915 | dev_info(dev, " Coalesce Interrupt Count = 0x%x\n", | |
6916 | readl(&(tb->HostWrite.CoalIntCount))); | |
69d6e33d | 6917 | dev_info(dev, " Max outstanding commands = %d\n", |
edd16368 SC |
6918 | readl(&(tb->CmdsOutMax))); |
6919 | dev_info(dev, " Bus Types = 0x%x\n", readl(&(tb->BusTypes))); | |
6920 | for (i = 0; i < 16; i++) | |
6921 | temp_name[i] = readb(&(tb->ServerName[i])); | |
6922 | temp_name[16] = '\0'; | |
6923 | dev_info(dev, " Server Name = %s\n", temp_name); | |
6924 | dev_info(dev, " Heartbeat Counter = 0x%x\n\n\n", | |
6925 | readl(&(tb->HeartBeat))); | |
edd16368 | 6926 | #endif /* HPSA_DEBUG */ |
58f8665c | 6927 | } |
edd16368 SC |
6928 | |
6929 | static int find_PCI_BAR_index(struct pci_dev *pdev, unsigned long pci_bar_addr) | |
6930 | { | |
6931 | int i, offset, mem_type, bar_type; | |
6932 | ||
6933 | if (pci_bar_addr == PCI_BASE_ADDRESS_0) /* looking for BAR zero? */ | |
6934 | return 0; | |
6935 | offset = 0; | |
6936 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { | |
6937 | bar_type = pci_resource_flags(pdev, i) & PCI_BASE_ADDRESS_SPACE; | |
6938 | if (bar_type == PCI_BASE_ADDRESS_SPACE_IO) | |
6939 | offset += 4; | |
6940 | else { | |
6941 | mem_type = pci_resource_flags(pdev, i) & | |
6942 | PCI_BASE_ADDRESS_MEM_TYPE_MASK; | |
6943 | switch (mem_type) { | |
6944 | case PCI_BASE_ADDRESS_MEM_TYPE_32: | |
6945 | case PCI_BASE_ADDRESS_MEM_TYPE_1M: | |
6946 | offset += 4; /* 32 bit */ | |
6947 | break; | |
6948 | case PCI_BASE_ADDRESS_MEM_TYPE_64: | |
6949 | offset += 8; | |
6950 | break; | |
6951 | default: /* reserved in PCI 2.2 */ | |
6952 | dev_warn(&pdev->dev, | |
6953 | "base address is invalid\n"); | |
6954 | return -1; | |
6955 | break; | |
6956 | } | |
6957 | } | |
6958 | if (offset == pci_bar_addr - PCI_BASE_ADDRESS_0) | |
6959 | return i + 1; | |
6960 | } | |
6961 | return -1; | |
6962 | } | |
6963 | ||
cc64c817 RE |
6964 | static void hpsa_disable_interrupt_mode(struct ctlr_info *h) |
6965 | { | |
6966 | if (h->msix_vector) { | |
6967 | if (h->pdev->msix_enabled) | |
6968 | pci_disable_msix(h->pdev); | |
105a3dbc | 6969 | h->msix_vector = 0; |
cc64c817 RE |
6970 | } else if (h->msi_vector) { |
6971 | if (h->pdev->msi_enabled) | |
6972 | pci_disable_msi(h->pdev); | |
105a3dbc | 6973 | h->msi_vector = 0; |
cc64c817 RE |
6974 | } |
6975 | } | |
6976 | ||
edd16368 | 6977 | /* If MSI/MSI-X is supported by the kernel we will try to enable it on |
050f7147 | 6978 | * controllers that are capable. If not, we use legacy INTx mode. |
edd16368 | 6979 | */ |
6f039790 | 6980 | static void hpsa_interrupt_mode(struct ctlr_info *h) |
edd16368 SC |
6981 | { |
6982 | #ifdef CONFIG_PCI_MSI | |
254f796b MG |
6983 | int err, i; |
6984 | struct msix_entry hpsa_msix_entries[MAX_REPLY_QUEUES]; | |
6985 | ||
6986 | for (i = 0; i < MAX_REPLY_QUEUES; i++) { | |
6987 | hpsa_msix_entries[i].vector = 0; | |
6988 | hpsa_msix_entries[i].entry = i; | |
6989 | } | |
edd16368 SC |
6990 | |
6991 | /* Some boards advertise MSI but don't really support it */ | |
6b3f4c52 SC |
6992 | if ((h->board_id == 0x40700E11) || (h->board_id == 0x40800E11) || |
6993 | (h->board_id == 0x40820E11) || (h->board_id == 0x40830E11)) | |
edd16368 | 6994 | goto default_int_mode; |
55c06c71 | 6995 | if (pci_find_capability(h->pdev, PCI_CAP_ID_MSIX)) { |
050f7147 | 6996 | dev_info(&h->pdev->dev, "MSI-X capable controller\n"); |
eee0f03a | 6997 | h->msix_vector = MAX_REPLY_QUEUES; |
f89439bc SC |
6998 | if (h->msix_vector > num_online_cpus()) |
6999 | h->msix_vector = num_online_cpus(); | |
18fce3c4 AG |
7000 | err = pci_enable_msix_range(h->pdev, hpsa_msix_entries, |
7001 | 1, h->msix_vector); | |
7002 | if (err < 0) { | |
7003 | dev_warn(&h->pdev->dev, "MSI-X init failed %d\n", err); | |
7004 | h->msix_vector = 0; | |
7005 | goto single_msi_mode; | |
7006 | } else if (err < h->msix_vector) { | |
55c06c71 | 7007 | dev_warn(&h->pdev->dev, "only %d MSI-X vectors " |
edd16368 | 7008 | "available\n", err); |
edd16368 | 7009 | } |
18fce3c4 AG |
7010 | h->msix_vector = err; |
7011 | for (i = 0; i < h->msix_vector; i++) | |
7012 | h->intr[i] = hpsa_msix_entries[i].vector; | |
7013 | return; | |
edd16368 | 7014 | } |
18fce3c4 | 7015 | single_msi_mode: |
55c06c71 | 7016 | if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) { |
050f7147 | 7017 | dev_info(&h->pdev->dev, "MSI capable controller\n"); |
55c06c71 | 7018 | if (!pci_enable_msi(h->pdev)) |
edd16368 SC |
7019 | h->msi_vector = 1; |
7020 | else | |
55c06c71 | 7021 | dev_warn(&h->pdev->dev, "MSI init failed\n"); |
edd16368 SC |
7022 | } |
7023 | default_int_mode: | |
7024 | #endif /* CONFIG_PCI_MSI */ | |
7025 | /* if we get here we're going to use the default interrupt mode */ | |
a9a3a273 | 7026 | h->intr[h->intr_mode] = h->pdev->irq; |
edd16368 SC |
7027 | } |
7028 | ||
6f039790 | 7029 | static int hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id) |
e5c880d1 SC |
7030 | { |
7031 | int i; | |
7032 | u32 subsystem_vendor_id, subsystem_device_id; | |
7033 | ||
7034 | subsystem_vendor_id = pdev->subsystem_vendor; | |
7035 | subsystem_device_id = pdev->subsystem_device; | |
7036 | *board_id = ((subsystem_device_id << 16) & 0xffff0000) | | |
7037 | subsystem_vendor_id; | |
7038 | ||
7039 | for (i = 0; i < ARRAY_SIZE(products); i++) | |
7040 | if (*board_id == products[i].board_id) | |
7041 | return i; | |
7042 | ||
6798cc0a SC |
7043 | if ((subsystem_vendor_id != PCI_VENDOR_ID_HP && |
7044 | subsystem_vendor_id != PCI_VENDOR_ID_COMPAQ) || | |
7045 | !hpsa_allow_any) { | |
e5c880d1 SC |
7046 | dev_warn(&pdev->dev, "unrecognized board ID: " |
7047 | "0x%08x, ignoring.\n", *board_id); | |
7048 | return -ENODEV; | |
7049 | } | |
7050 | return ARRAY_SIZE(products) - 1; /* generic unknown smart array */ | |
7051 | } | |
7052 | ||
6f039790 GKH |
7053 | static int hpsa_pci_find_memory_BAR(struct pci_dev *pdev, |
7054 | unsigned long *memory_bar) | |
3a7774ce SC |
7055 | { |
7056 | int i; | |
7057 | ||
7058 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) | |
12d2cd47 | 7059 | if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) { |
3a7774ce | 7060 | /* addressing mode bits already removed */ |
12d2cd47 SC |
7061 | *memory_bar = pci_resource_start(pdev, i); |
7062 | dev_dbg(&pdev->dev, "memory BAR = %lx\n", | |
3a7774ce SC |
7063 | *memory_bar); |
7064 | return 0; | |
7065 | } | |
12d2cd47 | 7066 | dev_warn(&pdev->dev, "no memory BAR found\n"); |
3a7774ce SC |
7067 | return -ENODEV; |
7068 | } | |
7069 | ||
6f039790 GKH |
7070 | static int hpsa_wait_for_board_state(struct pci_dev *pdev, void __iomem *vaddr, |
7071 | int wait_for_ready) | |
2c4c8c8b | 7072 | { |
fe5389c8 | 7073 | int i, iterations; |
2c4c8c8b | 7074 | u32 scratchpad; |
fe5389c8 SC |
7075 | if (wait_for_ready) |
7076 | iterations = HPSA_BOARD_READY_ITERATIONS; | |
7077 | else | |
7078 | iterations = HPSA_BOARD_NOT_READY_ITERATIONS; | |
2c4c8c8b | 7079 | |
fe5389c8 SC |
7080 | for (i = 0; i < iterations; i++) { |
7081 | scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET); | |
7082 | if (wait_for_ready) { | |
7083 | if (scratchpad == HPSA_FIRMWARE_READY) | |
7084 | return 0; | |
7085 | } else { | |
7086 | if (scratchpad != HPSA_FIRMWARE_READY) | |
7087 | return 0; | |
7088 | } | |
2c4c8c8b SC |
7089 | msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS); |
7090 | } | |
fe5389c8 | 7091 | dev_warn(&pdev->dev, "board not ready, timed out.\n"); |
2c4c8c8b SC |
7092 | return -ENODEV; |
7093 | } | |
7094 | ||
6f039790 GKH |
7095 | static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr, |
7096 | u32 *cfg_base_addr, u64 *cfg_base_addr_index, | |
7097 | u64 *cfg_offset) | |
a51fd47f SC |
7098 | { |
7099 | *cfg_base_addr = readl(vaddr + SA5_CTCFG_OFFSET); | |
7100 | *cfg_offset = readl(vaddr + SA5_CTMEM_OFFSET); | |
7101 | *cfg_base_addr &= (u32) 0x0000ffff; | |
7102 | *cfg_base_addr_index = find_PCI_BAR_index(pdev, *cfg_base_addr); | |
7103 | if (*cfg_base_addr_index == -1) { | |
7104 | dev_warn(&pdev->dev, "cannot find cfg_base_addr_index\n"); | |
7105 | return -ENODEV; | |
7106 | } | |
7107 | return 0; | |
7108 | } | |
7109 | ||
195f2c65 RE |
7110 | static void hpsa_free_cfgtables(struct ctlr_info *h) |
7111 | { | |
105a3dbc | 7112 | if (h->transtable) { |
195f2c65 | 7113 | iounmap(h->transtable); |
105a3dbc RE |
7114 | h->transtable = NULL; |
7115 | } | |
7116 | if (h->cfgtable) { | |
195f2c65 | 7117 | iounmap(h->cfgtable); |
105a3dbc RE |
7118 | h->cfgtable = NULL; |
7119 | } | |
195f2c65 RE |
7120 | } |
7121 | ||
7122 | /* Find and map CISS config table and transfer table | |
7123 | + * several items must be unmapped (freed) later | |
7124 | + * */ | |
6f039790 | 7125 | static int hpsa_find_cfgtables(struct ctlr_info *h) |
edd16368 | 7126 | { |
01a02ffc SC |
7127 | u64 cfg_offset; |
7128 | u32 cfg_base_addr; | |
7129 | u64 cfg_base_addr_index; | |
303932fd | 7130 | u32 trans_offset; |
a51fd47f | 7131 | int rc; |
77c4495c | 7132 | |
a51fd47f SC |
7133 | rc = hpsa_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr, |
7134 | &cfg_base_addr_index, &cfg_offset); | |
7135 | if (rc) | |
7136 | return rc; | |
77c4495c | 7137 | h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev, |
a51fd47f | 7138 | cfg_base_addr_index) + cfg_offset, sizeof(*h->cfgtable)); |
cd3c81c4 RE |
7139 | if (!h->cfgtable) { |
7140 | dev_err(&h->pdev->dev, "Failed mapping cfgtable\n"); | |
77c4495c | 7141 | return -ENOMEM; |
cd3c81c4 | 7142 | } |
580ada3c SC |
7143 | rc = write_driver_ver_to_cfgtable(h->cfgtable); |
7144 | if (rc) | |
7145 | return rc; | |
77c4495c | 7146 | /* Find performant mode table. */ |
a51fd47f | 7147 | trans_offset = readl(&h->cfgtable->TransMethodOffset); |
77c4495c SC |
7148 | h->transtable = remap_pci_mem(pci_resource_start(h->pdev, |
7149 | cfg_base_addr_index)+cfg_offset+trans_offset, | |
7150 | sizeof(*h->transtable)); | |
195f2c65 RE |
7151 | if (!h->transtable) { |
7152 | dev_err(&h->pdev->dev, "Failed mapping transfer table\n"); | |
7153 | hpsa_free_cfgtables(h); | |
77c4495c | 7154 | return -ENOMEM; |
195f2c65 | 7155 | } |
77c4495c SC |
7156 | return 0; |
7157 | } | |
7158 | ||
6f039790 | 7159 | static void hpsa_get_max_perf_mode_cmds(struct ctlr_info *h) |
cba3d38b | 7160 | { |
41ce4c35 SC |
7161 | #define MIN_MAX_COMMANDS 16 |
7162 | BUILD_BUG_ON(MIN_MAX_COMMANDS <= HPSA_NRESERVED_CMDS); | |
7163 | ||
7164 | h->max_commands = readl(&h->cfgtable->MaxPerformantModeCommands); | |
72ceeaec SC |
7165 | |
7166 | /* Limit commands in memory limited kdump scenario. */ | |
7167 | if (reset_devices && h->max_commands > 32) | |
7168 | h->max_commands = 32; | |
7169 | ||
41ce4c35 SC |
7170 | if (h->max_commands < MIN_MAX_COMMANDS) { |
7171 | dev_warn(&h->pdev->dev, | |
7172 | "Controller reports max supported commands of %d Using %d instead. Ensure that firmware is up to date.\n", | |
7173 | h->max_commands, | |
7174 | MIN_MAX_COMMANDS); | |
7175 | h->max_commands = MIN_MAX_COMMANDS; | |
cba3d38b SC |
7176 | } |
7177 | } | |
7178 | ||
c7ee65b3 WS |
7179 | /* If the controller reports that the total max sg entries is greater than 512, |
7180 | * then we know that chained SG blocks work. (Original smart arrays did not | |
7181 | * support chained SG blocks and would return zero for max sg entries.) | |
7182 | */ | |
7183 | static int hpsa_supports_chained_sg_blocks(struct ctlr_info *h) | |
7184 | { | |
7185 | return h->maxsgentries > 512; | |
7186 | } | |
7187 | ||
b93d7536 SC |
7188 | /* Interrogate the hardware for some limits: |
7189 | * max commands, max SG elements without chaining, and with chaining, | |
7190 | * SG chain block size, etc. | |
7191 | */ | |
6f039790 | 7192 | static void hpsa_find_board_params(struct ctlr_info *h) |
b93d7536 | 7193 | { |
cba3d38b | 7194 | hpsa_get_max_perf_mode_cmds(h); |
45fcb86e | 7195 | h->nr_cmds = h->max_commands; |
b93d7536 | 7196 | h->maxsgentries = readl(&(h->cfgtable->MaxScatterGatherElements)); |
283b4a9b | 7197 | h->fw_support = readl(&(h->cfgtable->misc_fw_support)); |
c7ee65b3 WS |
7198 | if (hpsa_supports_chained_sg_blocks(h)) { |
7199 | /* Limit in-command s/g elements to 32 save dma'able memory. */ | |
b93d7536 | 7200 | h->max_cmd_sg_entries = 32; |
1a63ea6f | 7201 | h->chainsize = h->maxsgentries - h->max_cmd_sg_entries; |
b93d7536 SC |
7202 | h->maxsgentries--; /* save one for chain pointer */ |
7203 | } else { | |
c7ee65b3 WS |
7204 | /* |
7205 | * Original smart arrays supported at most 31 s/g entries | |
7206 | * embedded inline in the command (trying to use more | |
7207 | * would lock up the controller) | |
7208 | */ | |
7209 | h->max_cmd_sg_entries = 31; | |
1a63ea6f | 7210 | h->maxsgentries = 31; /* default to traditional values */ |
c7ee65b3 | 7211 | h->chainsize = 0; |
b93d7536 | 7212 | } |
75167d2c SC |
7213 | |
7214 | /* Find out what task management functions are supported and cache */ | |
7215 | h->TMFSupportFlags = readl(&(h->cfgtable->TMFSupportFlags)); | |
0e7a7fce ST |
7216 | if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags)) |
7217 | dev_warn(&h->pdev->dev, "Physical aborts not supported\n"); | |
7218 | if (!(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags)) | |
7219 | dev_warn(&h->pdev->dev, "Logical aborts not supported\n"); | |
8be986cc SC |
7220 | if (!(HPSATMF_IOACCEL_ENABLED & h->TMFSupportFlags)) |
7221 | dev_warn(&h->pdev->dev, "HP SSD Smart Path aborts not supported\n"); | |
b93d7536 SC |
7222 | } |
7223 | ||
76c46e49 SC |
7224 | static inline bool hpsa_CISS_signature_present(struct ctlr_info *h) |
7225 | { | |
0fc9fd40 | 7226 | if (!check_signature(h->cfgtable->Signature, "CISS", 4)) { |
050f7147 | 7227 | dev_err(&h->pdev->dev, "not a valid CISS config table\n"); |
76c46e49 SC |
7228 | return false; |
7229 | } | |
7230 | return true; | |
7231 | } | |
7232 | ||
97a5e98c | 7233 | static inline void hpsa_set_driver_support_bits(struct ctlr_info *h) |
f7c39101 | 7234 | { |
97a5e98c | 7235 | u32 driver_support; |
f7c39101 | 7236 | |
97a5e98c | 7237 | driver_support = readl(&(h->cfgtable->driver_support)); |
0b9e7b74 AB |
7238 | /* Need to enable prefetch in the SCSI core for 6400 in x86 */ |
7239 | #ifdef CONFIG_X86 | |
97a5e98c | 7240 | driver_support |= ENABLE_SCSI_PREFETCH; |
f7c39101 | 7241 | #endif |
28e13446 SC |
7242 | driver_support |= ENABLE_UNIT_ATTN; |
7243 | writel(driver_support, &(h->cfgtable->driver_support)); | |
f7c39101 SC |
7244 | } |
7245 | ||
3d0eab67 SC |
7246 | /* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result |
7247 | * in a prefetch beyond physical memory. | |
7248 | */ | |
7249 | static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info *h) | |
7250 | { | |
7251 | u32 dma_prefetch; | |
7252 | ||
7253 | if (h->board_id != 0x3225103C) | |
7254 | return; | |
7255 | dma_prefetch = readl(h->vaddr + I2O_DMA1_CFG); | |
7256 | dma_prefetch |= 0x8000; | |
7257 | writel(dma_prefetch, h->vaddr + I2O_DMA1_CFG); | |
7258 | } | |
7259 | ||
c706a795 | 7260 | static int hpsa_wait_for_clear_event_notify_ack(struct ctlr_info *h) |
76438d08 SC |
7261 | { |
7262 | int i; | |
7263 | u32 doorbell_value; | |
7264 | unsigned long flags; | |
7265 | /* wait until the clear_event_notify bit 6 is cleared by controller. */ | |
007e7aa9 | 7266 | for (i = 0; i < MAX_CLEAR_EVENT_WAIT; i++) { |
76438d08 SC |
7267 | spin_lock_irqsave(&h->lock, flags); |
7268 | doorbell_value = readl(h->vaddr + SA5_DOORBELL); | |
7269 | spin_unlock_irqrestore(&h->lock, flags); | |
7270 | if (!(doorbell_value & DOORBELL_CLEAR_EVENTS)) | |
c706a795 | 7271 | goto done; |
76438d08 | 7272 | /* delay and try again */ |
007e7aa9 | 7273 | msleep(CLEAR_EVENT_WAIT_INTERVAL); |
76438d08 | 7274 | } |
c706a795 RE |
7275 | return -ENODEV; |
7276 | done: | |
7277 | return 0; | |
76438d08 SC |
7278 | } |
7279 | ||
c706a795 | 7280 | static int hpsa_wait_for_mode_change_ack(struct ctlr_info *h) |
eb6b2ae9 SC |
7281 | { |
7282 | int i; | |
6eaf46fd SC |
7283 | u32 doorbell_value; |
7284 | unsigned long flags; | |
eb6b2ae9 SC |
7285 | |
7286 | /* under certain very rare conditions, this can take awhile. | |
7287 | * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right | |
7288 | * as we enter this code.) | |
7289 | */ | |
007e7aa9 | 7290 | for (i = 0; i < MAX_MODE_CHANGE_WAIT; i++) { |
25163bd5 WS |
7291 | if (h->remove_in_progress) |
7292 | goto done; | |
6eaf46fd SC |
7293 | spin_lock_irqsave(&h->lock, flags); |
7294 | doorbell_value = readl(h->vaddr + SA5_DOORBELL); | |
7295 | spin_unlock_irqrestore(&h->lock, flags); | |
382be668 | 7296 | if (!(doorbell_value & CFGTBL_ChangeReq)) |
c706a795 | 7297 | goto done; |
eb6b2ae9 | 7298 | /* delay and try again */ |
007e7aa9 | 7299 | msleep(MODE_CHANGE_WAIT_INTERVAL); |
eb6b2ae9 | 7300 | } |
c706a795 RE |
7301 | return -ENODEV; |
7302 | done: | |
7303 | return 0; | |
3f4336f3 SC |
7304 | } |
7305 | ||
c706a795 | 7306 | /* return -ENODEV or other reason on error, 0 on success */ |
6f039790 | 7307 | static int hpsa_enter_simple_mode(struct ctlr_info *h) |
3f4336f3 SC |
7308 | { |
7309 | u32 trans_support; | |
7310 | ||
7311 | trans_support = readl(&(h->cfgtable->TransportSupport)); | |
7312 | if (!(trans_support & SIMPLE_MODE)) | |
7313 | return -ENOTSUPP; | |
7314 | ||
7315 | h->max_commands = readl(&(h->cfgtable->CmdsOutMax)); | |
283b4a9b | 7316 | |
3f4336f3 SC |
7317 | /* Update the field, and then ring the doorbell */ |
7318 | writel(CFGTBL_Trans_Simple, &(h->cfgtable->HostWrite.TransportRequest)); | |
b9af4937 | 7319 | writel(0, &h->cfgtable->HostWrite.command_pool_addr_hi); |
3f4336f3 | 7320 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); |
c706a795 RE |
7321 | if (hpsa_wait_for_mode_change_ack(h)) |
7322 | goto error; | |
eb6b2ae9 | 7323 | print_cfg_table(&h->pdev->dev, h->cfgtable); |
283b4a9b SC |
7324 | if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) |
7325 | goto error; | |
960a30e7 | 7326 | h->transMethod = CFGTBL_Trans_Simple; |
eb6b2ae9 | 7327 | return 0; |
283b4a9b | 7328 | error: |
050f7147 | 7329 | dev_err(&h->pdev->dev, "failed to enter simple mode\n"); |
283b4a9b | 7330 | return -ENODEV; |
eb6b2ae9 SC |
7331 | } |
7332 | ||
195f2c65 RE |
7333 | /* free items allocated or mapped by hpsa_pci_init */ |
7334 | static void hpsa_free_pci_init(struct ctlr_info *h) | |
7335 | { | |
7336 | hpsa_free_cfgtables(h); /* pci_init 4 */ | |
7337 | iounmap(h->vaddr); /* pci_init 3 */ | |
105a3dbc | 7338 | h->vaddr = NULL; |
195f2c65 | 7339 | hpsa_disable_interrupt_mode(h); /* pci_init 2 */ |
943a7021 RE |
7340 | /* |
7341 | * call pci_disable_device before pci_release_regions per | |
7342 | * Documentation/PCI/pci.txt | |
7343 | */ | |
195f2c65 | 7344 | pci_disable_device(h->pdev); /* pci_init 1 */ |
943a7021 | 7345 | pci_release_regions(h->pdev); /* pci_init 2 */ |
195f2c65 RE |
7346 | } |
7347 | ||
7348 | /* several items must be freed later */ | |
6f039790 | 7349 | static int hpsa_pci_init(struct ctlr_info *h) |
77c4495c | 7350 | { |
eb6b2ae9 | 7351 | int prod_index, err; |
edd16368 | 7352 | |
e5c880d1 SC |
7353 | prod_index = hpsa_lookup_board_id(h->pdev, &h->board_id); |
7354 | if (prod_index < 0) | |
60f923b9 | 7355 | return prod_index; |
e5c880d1 SC |
7356 | h->product_name = products[prod_index].product_name; |
7357 | h->access = *(products[prod_index].access); | |
edd16368 | 7358 | |
9b5c48c2 SC |
7359 | h->needs_abort_tags_swizzled = |
7360 | ctlr_needs_abort_tags_swizzled(h->board_id); | |
7361 | ||
e5a44df8 MG |
7362 | pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S | |
7363 | PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM); | |
7364 | ||
55c06c71 | 7365 | err = pci_enable_device(h->pdev); |
edd16368 | 7366 | if (err) { |
195f2c65 | 7367 | dev_err(&h->pdev->dev, "failed to enable PCI device\n"); |
943a7021 | 7368 | pci_disable_device(h->pdev); |
edd16368 SC |
7369 | return err; |
7370 | } | |
7371 | ||
f79cfec6 | 7372 | err = pci_request_regions(h->pdev, HPSA); |
edd16368 | 7373 | if (err) { |
55c06c71 | 7374 | dev_err(&h->pdev->dev, |
195f2c65 | 7375 | "failed to obtain PCI resources\n"); |
943a7021 RE |
7376 | pci_disable_device(h->pdev); |
7377 | return err; | |
edd16368 | 7378 | } |
4fa604e1 RE |
7379 | |
7380 | pci_set_master(h->pdev); | |
7381 | ||
6b3f4c52 | 7382 | hpsa_interrupt_mode(h); |
12d2cd47 | 7383 | err = hpsa_pci_find_memory_BAR(h->pdev, &h->paddr); |
3a7774ce | 7384 | if (err) |
195f2c65 | 7385 | goto clean2; /* intmode+region, pci */ |
edd16368 | 7386 | h->vaddr = remap_pci_mem(h->paddr, 0x250); |
204892e9 | 7387 | if (!h->vaddr) { |
195f2c65 | 7388 | dev_err(&h->pdev->dev, "failed to remap PCI mem\n"); |
204892e9 | 7389 | err = -ENOMEM; |
195f2c65 | 7390 | goto clean2; /* intmode+region, pci */ |
204892e9 | 7391 | } |
fe5389c8 | 7392 | err = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY); |
2c4c8c8b | 7393 | if (err) |
195f2c65 | 7394 | goto clean3; /* vaddr, intmode+region, pci */ |
77c4495c SC |
7395 | err = hpsa_find_cfgtables(h); |
7396 | if (err) | |
195f2c65 | 7397 | goto clean3; /* vaddr, intmode+region, pci */ |
b93d7536 | 7398 | hpsa_find_board_params(h); |
edd16368 | 7399 | |
76c46e49 | 7400 | if (!hpsa_CISS_signature_present(h)) { |
edd16368 | 7401 | err = -ENODEV; |
195f2c65 | 7402 | goto clean4; /* cfgtables, vaddr, intmode+region, pci */ |
edd16368 | 7403 | } |
97a5e98c | 7404 | hpsa_set_driver_support_bits(h); |
3d0eab67 | 7405 | hpsa_p600_dma_prefetch_quirk(h); |
eb6b2ae9 SC |
7406 | err = hpsa_enter_simple_mode(h); |
7407 | if (err) | |
195f2c65 | 7408 | goto clean4; /* cfgtables, vaddr, intmode+region, pci */ |
edd16368 SC |
7409 | return 0; |
7410 | ||
195f2c65 RE |
7411 | clean4: /* cfgtables, vaddr, intmode+region, pci */ |
7412 | hpsa_free_cfgtables(h); | |
7413 | clean3: /* vaddr, intmode+region, pci */ | |
7414 | iounmap(h->vaddr); | |
105a3dbc | 7415 | h->vaddr = NULL; |
195f2c65 RE |
7416 | clean2: /* intmode+region, pci */ |
7417 | hpsa_disable_interrupt_mode(h); | |
943a7021 RE |
7418 | /* |
7419 | * call pci_disable_device before pci_release_regions per | |
7420 | * Documentation/PCI/pci.txt | |
7421 | */ | |
195f2c65 | 7422 | pci_disable_device(h->pdev); |
943a7021 | 7423 | pci_release_regions(h->pdev); |
edd16368 SC |
7424 | return err; |
7425 | } | |
7426 | ||
6f039790 | 7427 | static void hpsa_hba_inquiry(struct ctlr_info *h) |
339b2b14 SC |
7428 | { |
7429 | int rc; | |
7430 | ||
7431 | #define HBA_INQUIRY_BYTE_COUNT 64 | |
7432 | h->hba_inquiry_data = kmalloc(HBA_INQUIRY_BYTE_COUNT, GFP_KERNEL); | |
7433 | if (!h->hba_inquiry_data) | |
7434 | return; | |
7435 | rc = hpsa_scsi_do_inquiry(h, RAID_CTLR_LUNID, 0, | |
7436 | h->hba_inquiry_data, HBA_INQUIRY_BYTE_COUNT); | |
7437 | if (rc != 0) { | |
7438 | kfree(h->hba_inquiry_data); | |
7439 | h->hba_inquiry_data = NULL; | |
7440 | } | |
7441 | } | |
7442 | ||
6b6c1cd7 | 7443 | static int hpsa_init_reset_devices(struct pci_dev *pdev, u32 board_id) |
4c2a8c40 | 7444 | { |
1df8552a | 7445 | int rc, i; |
3b747298 | 7446 | void __iomem *vaddr; |
4c2a8c40 SC |
7447 | |
7448 | if (!reset_devices) | |
7449 | return 0; | |
7450 | ||
132aa220 TH |
7451 | /* kdump kernel is loading, we don't know in which state is |
7452 | * the pci interface. The dev->enable_cnt is equal zero | |
7453 | * so we call enable+disable, wait a while and switch it on. | |
7454 | */ | |
7455 | rc = pci_enable_device(pdev); | |
7456 | if (rc) { | |
7457 | dev_warn(&pdev->dev, "Failed to enable PCI device\n"); | |
7458 | return -ENODEV; | |
7459 | } | |
7460 | pci_disable_device(pdev); | |
7461 | msleep(260); /* a randomly chosen number */ | |
7462 | rc = pci_enable_device(pdev); | |
7463 | if (rc) { | |
7464 | dev_warn(&pdev->dev, "failed to enable device.\n"); | |
7465 | return -ENODEV; | |
7466 | } | |
4fa604e1 | 7467 | |
859c75ab | 7468 | pci_set_master(pdev); |
4fa604e1 | 7469 | |
3b747298 TH |
7470 | vaddr = pci_ioremap_bar(pdev, 0); |
7471 | if (vaddr == NULL) { | |
7472 | rc = -ENOMEM; | |
7473 | goto out_disable; | |
7474 | } | |
7475 | writel(SA5_INTR_OFF, vaddr + SA5_REPLY_INTR_MASK_OFFSET); | |
7476 | iounmap(vaddr); | |
7477 | ||
1df8552a | 7478 | /* Reset the controller with a PCI power-cycle or via doorbell */ |
6b6c1cd7 | 7479 | rc = hpsa_kdump_hard_reset_controller(pdev, board_id); |
4c2a8c40 | 7480 | |
1df8552a SC |
7481 | /* -ENOTSUPP here means we cannot reset the controller |
7482 | * but it's already (and still) up and running in | |
18867659 SC |
7483 | * "performant mode". Or, it might be 640x, which can't reset |
7484 | * due to concerns about shared bbwc between 6402/6404 pair. | |
1df8552a | 7485 | */ |
adf1b3a3 | 7486 | if (rc) |
132aa220 | 7487 | goto out_disable; |
4c2a8c40 SC |
7488 | |
7489 | /* Now try to get the controller to respond to a no-op */ | |
1ba66c9c | 7490 | dev_info(&pdev->dev, "Waiting for controller to respond to no-op\n"); |
4c2a8c40 SC |
7491 | for (i = 0; i < HPSA_POST_RESET_NOOP_RETRIES; i++) { |
7492 | if (hpsa_noop(pdev) == 0) | |
7493 | break; | |
7494 | else | |
7495 | dev_warn(&pdev->dev, "no-op failed%s\n", | |
7496 | (i < 11 ? "; re-trying" : "")); | |
7497 | } | |
132aa220 TH |
7498 | |
7499 | out_disable: | |
7500 | ||
7501 | pci_disable_device(pdev); | |
7502 | return rc; | |
4c2a8c40 SC |
7503 | } |
7504 | ||
1fb7c98a RE |
7505 | static void hpsa_free_cmd_pool(struct ctlr_info *h) |
7506 | { | |
7507 | kfree(h->cmd_pool_bits); | |
105a3dbc RE |
7508 | h->cmd_pool_bits = NULL; |
7509 | if (h->cmd_pool) { | |
1fb7c98a RE |
7510 | pci_free_consistent(h->pdev, |
7511 | h->nr_cmds * sizeof(struct CommandList), | |
7512 | h->cmd_pool, | |
7513 | h->cmd_pool_dhandle); | |
105a3dbc RE |
7514 | h->cmd_pool = NULL; |
7515 | h->cmd_pool_dhandle = 0; | |
7516 | } | |
7517 | if (h->errinfo_pool) { | |
1fb7c98a RE |
7518 | pci_free_consistent(h->pdev, |
7519 | h->nr_cmds * sizeof(struct ErrorInfo), | |
7520 | h->errinfo_pool, | |
7521 | h->errinfo_pool_dhandle); | |
105a3dbc RE |
7522 | h->errinfo_pool = NULL; |
7523 | h->errinfo_pool_dhandle = 0; | |
7524 | } | |
1fb7c98a RE |
7525 | } |
7526 | ||
d37ffbe4 | 7527 | static int hpsa_alloc_cmd_pool(struct ctlr_info *h) |
2e9d1b36 SC |
7528 | { |
7529 | h->cmd_pool_bits = kzalloc( | |
7530 | DIV_ROUND_UP(h->nr_cmds, BITS_PER_LONG) * | |
7531 | sizeof(unsigned long), GFP_KERNEL); | |
7532 | h->cmd_pool = pci_alloc_consistent(h->pdev, | |
7533 | h->nr_cmds * sizeof(*h->cmd_pool), | |
7534 | &(h->cmd_pool_dhandle)); | |
7535 | h->errinfo_pool = pci_alloc_consistent(h->pdev, | |
7536 | h->nr_cmds * sizeof(*h->errinfo_pool), | |
7537 | &(h->errinfo_pool_dhandle)); | |
7538 | if ((h->cmd_pool_bits == NULL) | |
7539 | || (h->cmd_pool == NULL) | |
7540 | || (h->errinfo_pool == NULL)) { | |
7541 | dev_err(&h->pdev->dev, "out of memory in %s", __func__); | |
2c143342 | 7542 | goto clean_up; |
2e9d1b36 | 7543 | } |
360c73bd | 7544 | hpsa_preinitialize_commands(h); |
2e9d1b36 | 7545 | return 0; |
2c143342 RE |
7546 | clean_up: |
7547 | hpsa_free_cmd_pool(h); | |
7548 | return -ENOMEM; | |
2e9d1b36 SC |
7549 | } |
7550 | ||
41b3cf08 SC |
7551 | static void hpsa_irq_affinity_hints(struct ctlr_info *h) |
7552 | { | |
ec429952 | 7553 | int i, cpu; |
41b3cf08 SC |
7554 | |
7555 | cpu = cpumask_first(cpu_online_mask); | |
7556 | for (i = 0; i < h->msix_vector; i++) { | |
ec429952 | 7557 | irq_set_affinity_hint(h->intr[i], get_cpu_mask(cpu)); |
41b3cf08 SC |
7558 | cpu = cpumask_next(cpu, cpu_online_mask); |
7559 | } | |
7560 | } | |
7561 | ||
ec501a18 RE |
7562 | /* clear affinity hints and free MSI-X, MSI, or legacy INTx vectors */ |
7563 | static void hpsa_free_irqs(struct ctlr_info *h) | |
7564 | { | |
7565 | int i; | |
7566 | ||
7567 | if (!h->msix_vector || h->intr_mode != PERF_MODE_INT) { | |
7568 | /* Single reply queue, only one irq to free */ | |
7569 | i = h->intr_mode; | |
7570 | irq_set_affinity_hint(h->intr[i], NULL); | |
7571 | free_irq(h->intr[i], &h->q[i]); | |
105a3dbc | 7572 | h->q[i] = 0; |
ec501a18 RE |
7573 | return; |
7574 | } | |
7575 | ||
7576 | for (i = 0; i < h->msix_vector; i++) { | |
7577 | irq_set_affinity_hint(h->intr[i], NULL); | |
7578 | free_irq(h->intr[i], &h->q[i]); | |
105a3dbc | 7579 | h->q[i] = 0; |
ec501a18 | 7580 | } |
a4e17fc1 RE |
7581 | for (; i < MAX_REPLY_QUEUES; i++) |
7582 | h->q[i] = 0; | |
ec501a18 RE |
7583 | } |
7584 | ||
9ee61794 RE |
7585 | /* returns 0 on success; cleans up and returns -Enn on error */ |
7586 | static int hpsa_request_irqs(struct ctlr_info *h, | |
0ae01a32 SC |
7587 | irqreturn_t (*msixhandler)(int, void *), |
7588 | irqreturn_t (*intxhandler)(int, void *)) | |
7589 | { | |
254f796b | 7590 | int rc, i; |
0ae01a32 | 7591 | |
254f796b MG |
7592 | /* |
7593 | * initialize h->q[x] = x so that interrupt handlers know which | |
7594 | * queue to process. | |
7595 | */ | |
7596 | for (i = 0; i < MAX_REPLY_QUEUES; i++) | |
7597 | h->q[i] = (u8) i; | |
7598 | ||
eee0f03a | 7599 | if (h->intr_mode == PERF_MODE_INT && h->msix_vector > 0) { |
254f796b | 7600 | /* If performant mode and MSI-X, use multiple reply queues */ |
a4e17fc1 | 7601 | for (i = 0; i < h->msix_vector; i++) { |
8b47004a | 7602 | sprintf(h->intrname[i], "%s-msix%d", h->devname, i); |
254f796b | 7603 | rc = request_irq(h->intr[i], msixhandler, |
8b47004a | 7604 | 0, h->intrname[i], |
254f796b | 7605 | &h->q[i]); |
a4e17fc1 RE |
7606 | if (rc) { |
7607 | int j; | |
7608 | ||
7609 | dev_err(&h->pdev->dev, | |
7610 | "failed to get irq %d for %s\n", | |
7611 | h->intr[i], h->devname); | |
7612 | for (j = 0; j < i; j++) { | |
7613 | free_irq(h->intr[j], &h->q[j]); | |
7614 | h->q[j] = 0; | |
7615 | } | |
7616 | for (; j < MAX_REPLY_QUEUES; j++) | |
7617 | h->q[j] = 0; | |
7618 | return rc; | |
7619 | } | |
7620 | } | |
41b3cf08 | 7621 | hpsa_irq_affinity_hints(h); |
254f796b MG |
7622 | } else { |
7623 | /* Use single reply pool */ | |
eee0f03a | 7624 | if (h->msix_vector > 0 || h->msi_vector) { |
8b47004a RE |
7625 | if (h->msix_vector) |
7626 | sprintf(h->intrname[h->intr_mode], | |
7627 | "%s-msix", h->devname); | |
7628 | else | |
7629 | sprintf(h->intrname[h->intr_mode], | |
7630 | "%s-msi", h->devname); | |
254f796b | 7631 | rc = request_irq(h->intr[h->intr_mode], |
8b47004a RE |
7632 | msixhandler, 0, |
7633 | h->intrname[h->intr_mode], | |
254f796b MG |
7634 | &h->q[h->intr_mode]); |
7635 | } else { | |
8b47004a RE |
7636 | sprintf(h->intrname[h->intr_mode], |
7637 | "%s-intx", h->devname); | |
254f796b | 7638 | rc = request_irq(h->intr[h->intr_mode], |
8b47004a RE |
7639 | intxhandler, IRQF_SHARED, |
7640 | h->intrname[h->intr_mode], | |
254f796b MG |
7641 | &h->q[h->intr_mode]); |
7642 | } | |
105a3dbc | 7643 | irq_set_affinity_hint(h->intr[h->intr_mode], NULL); |
254f796b | 7644 | } |
0ae01a32 | 7645 | if (rc) { |
195f2c65 | 7646 | dev_err(&h->pdev->dev, "failed to get irq %d for %s\n", |
0ae01a32 | 7647 | h->intr[h->intr_mode], h->devname); |
195f2c65 | 7648 | hpsa_free_irqs(h); |
0ae01a32 SC |
7649 | return -ENODEV; |
7650 | } | |
7651 | return 0; | |
7652 | } | |
7653 | ||
6f039790 | 7654 | static int hpsa_kdump_soft_reset(struct ctlr_info *h) |
64670ac8 | 7655 | { |
39c53f55 | 7656 | int rc; |
bf43caf3 | 7657 | hpsa_send_host_reset(h, RAID_CTLR_LUNID, HPSA_RESET_TYPE_CONTROLLER); |
64670ac8 SC |
7658 | |
7659 | dev_info(&h->pdev->dev, "Waiting for board to soft reset.\n"); | |
39c53f55 RE |
7660 | rc = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_NOT_READY); |
7661 | if (rc) { | |
64670ac8 | 7662 | dev_warn(&h->pdev->dev, "Soft reset had no effect.\n"); |
39c53f55 | 7663 | return rc; |
64670ac8 SC |
7664 | } |
7665 | ||
7666 | dev_info(&h->pdev->dev, "Board reset, awaiting READY status.\n"); | |
39c53f55 RE |
7667 | rc = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY); |
7668 | if (rc) { | |
64670ac8 SC |
7669 | dev_warn(&h->pdev->dev, "Board failed to become ready " |
7670 | "after soft reset.\n"); | |
39c53f55 | 7671 | return rc; |
64670ac8 SC |
7672 | } |
7673 | ||
7674 | return 0; | |
7675 | } | |
7676 | ||
072b0518 SC |
7677 | static void hpsa_free_reply_queues(struct ctlr_info *h) |
7678 | { | |
7679 | int i; | |
7680 | ||
7681 | for (i = 0; i < h->nreply_queues; i++) { | |
7682 | if (!h->reply_queue[i].head) | |
7683 | continue; | |
1fb7c98a RE |
7684 | pci_free_consistent(h->pdev, |
7685 | h->reply_queue_size, | |
7686 | h->reply_queue[i].head, | |
7687 | h->reply_queue[i].busaddr); | |
072b0518 SC |
7688 | h->reply_queue[i].head = NULL; |
7689 | h->reply_queue[i].busaddr = 0; | |
7690 | } | |
105a3dbc | 7691 | h->reply_queue_size = 0; |
072b0518 SC |
7692 | } |
7693 | ||
0097f0f4 SC |
7694 | static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info *h) |
7695 | { | |
105a3dbc RE |
7696 | hpsa_free_performant_mode(h); /* init_one 7 */ |
7697 | hpsa_free_sg_chain_blocks(h); /* init_one 6 */ | |
7698 | hpsa_free_cmd_pool(h); /* init_one 5 */ | |
7699 | hpsa_free_irqs(h); /* init_one 4 */ | |
2946e82b RE |
7700 | scsi_host_put(h->scsi_host); /* init_one 3 */ |
7701 | h->scsi_host = NULL; /* init_one 3 */ | |
7702 | hpsa_free_pci_init(h); /* init_one 2_5 */ | |
9ecd953a RE |
7703 | free_percpu(h->lockup_detected); /* init_one 2 */ |
7704 | h->lockup_detected = NULL; /* init_one 2 */ | |
7705 | if (h->resubmit_wq) { | |
7706 | destroy_workqueue(h->resubmit_wq); /* init_one 1 */ | |
7707 | h->resubmit_wq = NULL; | |
7708 | } | |
7709 | if (h->rescan_ctlr_wq) { | |
7710 | destroy_workqueue(h->rescan_ctlr_wq); | |
7711 | h->rescan_ctlr_wq = NULL; | |
7712 | } | |
105a3dbc | 7713 | kfree(h); /* init_one 1 */ |
64670ac8 SC |
7714 | } |
7715 | ||
a0c12413 | 7716 | /* Called when controller lockup detected. */ |
f2405db8 | 7717 | static void fail_all_outstanding_cmds(struct ctlr_info *h) |
a0c12413 | 7718 | { |
281a7fd0 WS |
7719 | int i, refcount; |
7720 | struct CommandList *c; | |
25163bd5 | 7721 | int failcount = 0; |
a0c12413 | 7722 | |
080ef1cc | 7723 | flush_workqueue(h->resubmit_wq); /* ensure all cmds are fully built */ |
f2405db8 | 7724 | for (i = 0; i < h->nr_cmds; i++) { |
f2405db8 | 7725 | c = h->cmd_pool + i; |
281a7fd0 WS |
7726 | refcount = atomic_inc_return(&c->refcount); |
7727 | if (refcount > 1) { | |
25163bd5 | 7728 | c->err_info->CommandStatus = CMD_CTLR_LOCKUP; |
281a7fd0 | 7729 | finish_cmd(c); |
433b5f4d | 7730 | atomic_dec(&h->commands_outstanding); |
25163bd5 | 7731 | failcount++; |
281a7fd0 WS |
7732 | } |
7733 | cmd_free(h, c); | |
a0c12413 | 7734 | } |
25163bd5 WS |
7735 | dev_warn(&h->pdev->dev, |
7736 | "failed %d commands in fail_all\n", failcount); | |
a0c12413 SC |
7737 | } |
7738 | ||
094963da SC |
7739 | static void set_lockup_detected_for_all_cpus(struct ctlr_info *h, u32 value) |
7740 | { | |
c8ed0010 | 7741 | int cpu; |
094963da | 7742 | |
c8ed0010 | 7743 | for_each_online_cpu(cpu) { |
094963da SC |
7744 | u32 *lockup_detected; |
7745 | lockup_detected = per_cpu_ptr(h->lockup_detected, cpu); | |
7746 | *lockup_detected = value; | |
094963da SC |
7747 | } |
7748 | wmb(); /* be sure the per-cpu variables are out to memory */ | |
7749 | } | |
7750 | ||
a0c12413 SC |
7751 | static void controller_lockup_detected(struct ctlr_info *h) |
7752 | { | |
7753 | unsigned long flags; | |
094963da | 7754 | u32 lockup_detected; |
a0c12413 | 7755 | |
a0c12413 SC |
7756 | h->access.set_intr_mask(h, HPSA_INTR_OFF); |
7757 | spin_lock_irqsave(&h->lock, flags); | |
094963da SC |
7758 | lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET); |
7759 | if (!lockup_detected) { | |
7760 | /* no heartbeat, but controller gave us a zero. */ | |
7761 | dev_warn(&h->pdev->dev, | |
25163bd5 WS |
7762 | "lockup detected after %d but scratchpad register is zero\n", |
7763 | h->heartbeat_sample_interval / HZ); | |
094963da SC |
7764 | lockup_detected = 0xffffffff; |
7765 | } | |
7766 | set_lockup_detected_for_all_cpus(h, lockup_detected); | |
a0c12413 | 7767 | spin_unlock_irqrestore(&h->lock, flags); |
25163bd5 WS |
7768 | dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x after %d\n", |
7769 | lockup_detected, h->heartbeat_sample_interval / HZ); | |
a0c12413 | 7770 | pci_disable_device(h->pdev); |
f2405db8 | 7771 | fail_all_outstanding_cmds(h); |
a0c12413 SC |
7772 | } |
7773 | ||
25163bd5 | 7774 | static int detect_controller_lockup(struct ctlr_info *h) |
a0c12413 SC |
7775 | { |
7776 | u64 now; | |
7777 | u32 heartbeat; | |
7778 | unsigned long flags; | |
7779 | ||
a0c12413 SC |
7780 | now = get_jiffies_64(); |
7781 | /* If we've received an interrupt recently, we're ok. */ | |
7782 | if (time_after64(h->last_intr_timestamp + | |
e85c5974 | 7783 | (h->heartbeat_sample_interval), now)) |
25163bd5 | 7784 | return false; |
a0c12413 SC |
7785 | |
7786 | /* | |
7787 | * If we've already checked the heartbeat recently, we're ok. | |
7788 | * This could happen if someone sends us a signal. We | |
7789 | * otherwise don't care about signals in this thread. | |
7790 | */ | |
7791 | if (time_after64(h->last_heartbeat_timestamp + | |
e85c5974 | 7792 | (h->heartbeat_sample_interval), now)) |
25163bd5 | 7793 | return false; |
a0c12413 SC |
7794 | |
7795 | /* If heartbeat has not changed since we last looked, we're not ok. */ | |
7796 | spin_lock_irqsave(&h->lock, flags); | |
7797 | heartbeat = readl(&h->cfgtable->HeartBeat); | |
7798 | spin_unlock_irqrestore(&h->lock, flags); | |
7799 | if (h->last_heartbeat == heartbeat) { | |
7800 | controller_lockup_detected(h); | |
25163bd5 | 7801 | return true; |
a0c12413 SC |
7802 | } |
7803 | ||
7804 | /* We're ok. */ | |
7805 | h->last_heartbeat = heartbeat; | |
7806 | h->last_heartbeat_timestamp = now; | |
25163bd5 | 7807 | return false; |
a0c12413 SC |
7808 | } |
7809 | ||
9846590e | 7810 | static void hpsa_ack_ctlr_events(struct ctlr_info *h) |
76438d08 SC |
7811 | { |
7812 | int i; | |
7813 | char *event_type; | |
7814 | ||
e4aa3e6a SC |
7815 | if (!(h->fw_support & MISC_FW_EVENT_NOTIFY)) |
7816 | return; | |
7817 | ||
76438d08 | 7818 | /* Ask the controller to clear the events we're handling. */ |
1f7cee8c SC |
7819 | if ((h->transMethod & (CFGTBL_Trans_io_accel1 |
7820 | | CFGTBL_Trans_io_accel2)) && | |
76438d08 SC |
7821 | (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE || |
7822 | h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE)) { | |
7823 | ||
7824 | if (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE) | |
7825 | event_type = "state change"; | |
7826 | if (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE) | |
7827 | event_type = "configuration change"; | |
7828 | /* Stop sending new RAID offload reqs via the IO accelerator */ | |
7829 | scsi_block_requests(h->scsi_host); | |
7830 | for (i = 0; i < h->ndevices; i++) | |
7831 | h->dev[i]->offload_enabled = 0; | |
23100dd9 | 7832 | hpsa_drain_accel_commands(h); |
76438d08 SC |
7833 | /* Set 'accelerator path config change' bit */ |
7834 | dev_warn(&h->pdev->dev, | |
7835 | "Acknowledging event: 0x%08x (HP SSD Smart Path %s)\n", | |
7836 | h->events, event_type); | |
7837 | writel(h->events, &(h->cfgtable->clear_event_notify)); | |
7838 | /* Set the "clear event notify field update" bit 6 */ | |
7839 | writel(DOORBELL_CLEAR_EVENTS, h->vaddr + SA5_DOORBELL); | |
7840 | /* Wait until ctlr clears 'clear event notify field', bit 6 */ | |
7841 | hpsa_wait_for_clear_event_notify_ack(h); | |
7842 | scsi_unblock_requests(h->scsi_host); | |
7843 | } else { | |
7844 | /* Acknowledge controller notification events. */ | |
7845 | writel(h->events, &(h->cfgtable->clear_event_notify)); | |
7846 | writel(DOORBELL_CLEAR_EVENTS, h->vaddr + SA5_DOORBELL); | |
7847 | hpsa_wait_for_clear_event_notify_ack(h); | |
7848 | #if 0 | |
7849 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); | |
7850 | hpsa_wait_for_mode_change_ack(h); | |
7851 | #endif | |
7852 | } | |
9846590e | 7853 | return; |
76438d08 SC |
7854 | } |
7855 | ||
7856 | /* Check a register on the controller to see if there are configuration | |
7857 | * changes (added/changed/removed logical drives, etc.) which mean that | |
e863d68e ST |
7858 | * we should rescan the controller for devices. |
7859 | * Also check flag for driver-initiated rescan. | |
76438d08 | 7860 | */ |
9846590e | 7861 | static int hpsa_ctlr_needs_rescan(struct ctlr_info *h) |
76438d08 SC |
7862 | { |
7863 | if (!(h->fw_support & MISC_FW_EVENT_NOTIFY)) | |
9846590e | 7864 | return 0; |
76438d08 SC |
7865 | |
7866 | h->events = readl(&(h->cfgtable->event_notify)); | |
9846590e SC |
7867 | return h->events & RESCAN_REQUIRED_EVENT_BITS; |
7868 | } | |
76438d08 | 7869 | |
9846590e SC |
7870 | /* |
7871 | * Check if any of the offline devices have become ready | |
7872 | */ | |
7873 | static int hpsa_offline_devices_ready(struct ctlr_info *h) | |
7874 | { | |
7875 | unsigned long flags; | |
7876 | struct offline_device_entry *d; | |
7877 | struct list_head *this, *tmp; | |
7878 | ||
7879 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
7880 | list_for_each_safe(this, tmp, &h->offline_device_list) { | |
7881 | d = list_entry(this, struct offline_device_entry, | |
7882 | offline_list); | |
7883 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
d1fea47c SC |
7884 | if (!hpsa_volume_offline(h, d->scsi3addr)) { |
7885 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
7886 | list_del(&d->offline_list); | |
7887 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
9846590e | 7888 | return 1; |
d1fea47c | 7889 | } |
9846590e SC |
7890 | spin_lock_irqsave(&h->offline_device_lock, flags); |
7891 | } | |
7892 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
7893 | return 0; | |
76438d08 SC |
7894 | } |
7895 | ||
6636e7f4 | 7896 | static void hpsa_rescan_ctlr_worker(struct work_struct *work) |
a0c12413 SC |
7897 | { |
7898 | unsigned long flags; | |
8a98db73 | 7899 | struct ctlr_info *h = container_of(to_delayed_work(work), |
6636e7f4 DB |
7900 | struct ctlr_info, rescan_ctlr_work); |
7901 | ||
7902 | ||
7903 | if (h->remove_in_progress) | |
8a98db73 | 7904 | return; |
9846590e SC |
7905 | |
7906 | if (hpsa_ctlr_needs_rescan(h) || hpsa_offline_devices_ready(h)) { | |
7907 | scsi_host_get(h->scsi_host); | |
9846590e SC |
7908 | hpsa_ack_ctlr_events(h); |
7909 | hpsa_scan_start(h->scsi_host); | |
7910 | scsi_host_put(h->scsi_host); | |
7911 | } | |
8a98db73 | 7912 | spin_lock_irqsave(&h->lock, flags); |
6636e7f4 DB |
7913 | if (!h->remove_in_progress) |
7914 | queue_delayed_work(h->rescan_ctlr_wq, &h->rescan_ctlr_work, | |
7915 | h->heartbeat_sample_interval); | |
7916 | spin_unlock_irqrestore(&h->lock, flags); | |
7917 | } | |
7918 | ||
7919 | static void hpsa_monitor_ctlr_worker(struct work_struct *work) | |
7920 | { | |
7921 | unsigned long flags; | |
7922 | struct ctlr_info *h = container_of(to_delayed_work(work), | |
7923 | struct ctlr_info, monitor_ctlr_work); | |
7924 | ||
7925 | detect_controller_lockup(h); | |
7926 | if (lockup_detected(h)) | |
a0c12413 | 7927 | return; |
6636e7f4 DB |
7928 | |
7929 | spin_lock_irqsave(&h->lock, flags); | |
7930 | if (!h->remove_in_progress) | |
7931 | schedule_delayed_work(&h->monitor_ctlr_work, | |
8a98db73 SC |
7932 | h->heartbeat_sample_interval); |
7933 | spin_unlock_irqrestore(&h->lock, flags); | |
a0c12413 SC |
7934 | } |
7935 | ||
6636e7f4 DB |
7936 | static struct workqueue_struct *hpsa_create_controller_wq(struct ctlr_info *h, |
7937 | char *name) | |
7938 | { | |
7939 | struct workqueue_struct *wq = NULL; | |
6636e7f4 | 7940 | |
397ea9cb | 7941 | wq = alloc_ordered_workqueue("%s_%d_hpsa", 0, name, h->ctlr); |
6636e7f4 DB |
7942 | if (!wq) |
7943 | dev_err(&h->pdev->dev, "failed to create %s workqueue\n", name); | |
7944 | ||
7945 | return wq; | |
7946 | } | |
7947 | ||
6f039790 | 7948 | static int hpsa_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
edd16368 | 7949 | { |
4c2a8c40 | 7950 | int dac, rc; |
edd16368 | 7951 | struct ctlr_info *h; |
64670ac8 SC |
7952 | int try_soft_reset = 0; |
7953 | unsigned long flags; | |
6b6c1cd7 | 7954 | u32 board_id; |
edd16368 SC |
7955 | |
7956 | if (number_of_controllers == 0) | |
7957 | printk(KERN_INFO DRIVER_NAME "\n"); | |
edd16368 | 7958 | |
6b6c1cd7 TH |
7959 | rc = hpsa_lookup_board_id(pdev, &board_id); |
7960 | if (rc < 0) { | |
7961 | dev_warn(&pdev->dev, "Board ID not found\n"); | |
7962 | return rc; | |
7963 | } | |
7964 | ||
7965 | rc = hpsa_init_reset_devices(pdev, board_id); | |
64670ac8 SC |
7966 | if (rc) { |
7967 | if (rc != -ENOTSUPP) | |
7968 | return rc; | |
7969 | /* If the reset fails in a particular way (it has no way to do | |
7970 | * a proper hard reset, so returns -ENOTSUPP) we can try to do | |
7971 | * a soft reset once we get the controller configured up to the | |
7972 | * point that it can accept a command. | |
7973 | */ | |
7974 | try_soft_reset = 1; | |
7975 | rc = 0; | |
7976 | } | |
7977 | ||
7978 | reinit_after_soft_reset: | |
edd16368 | 7979 | |
303932fd DB |
7980 | /* Command structures must be aligned on a 32-byte boundary because |
7981 | * the 5 lower bits of the address are used by the hardware. and by | |
7982 | * the driver. See comments in hpsa.h for more info. | |
7983 | */ | |
303932fd | 7984 | BUILD_BUG_ON(sizeof(struct CommandList) % COMMANDLIST_ALIGNMENT); |
edd16368 | 7985 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
105a3dbc RE |
7986 | if (!h) { |
7987 | dev_err(&pdev->dev, "Failed to allocate controller head\n"); | |
ecd9aad4 | 7988 | return -ENOMEM; |
105a3dbc | 7989 | } |
edd16368 | 7990 | |
55c06c71 | 7991 | h->pdev = pdev; |
105a3dbc | 7992 | |
a9a3a273 | 7993 | h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT; |
9846590e | 7994 | INIT_LIST_HEAD(&h->offline_device_list); |
6eaf46fd | 7995 | spin_lock_init(&h->lock); |
9846590e | 7996 | spin_lock_init(&h->offline_device_lock); |
6eaf46fd | 7997 | spin_lock_init(&h->scan_lock); |
34f0c627 | 7998 | atomic_set(&h->passthru_cmds_avail, HPSA_MAX_CONCURRENT_PASSTHRUS); |
9b5c48c2 | 7999 | atomic_set(&h->abort_cmds_available, HPSA_CMDS_RESERVED_FOR_ABORTS); |
094963da SC |
8000 | |
8001 | /* Allocate and clear per-cpu variable lockup_detected */ | |
8002 | h->lockup_detected = alloc_percpu(u32); | |
2a5ac326 | 8003 | if (!h->lockup_detected) { |
105a3dbc | 8004 | dev_err(&h->pdev->dev, "Failed to allocate lockup detector\n"); |
2a5ac326 | 8005 | rc = -ENOMEM; |
2efa5929 | 8006 | goto clean1; /* aer/h */ |
2a5ac326 | 8007 | } |
094963da SC |
8008 | set_lockup_detected_for_all_cpus(h, 0); |
8009 | ||
55c06c71 | 8010 | rc = hpsa_pci_init(h); |
105a3dbc | 8011 | if (rc) |
2946e82b RE |
8012 | goto clean2; /* lu, aer/h */ |
8013 | ||
8014 | /* relies on h-> settings made by hpsa_pci_init, including | |
8015 | * interrupt_mode h->intr */ | |
8016 | rc = hpsa_scsi_host_alloc(h); | |
8017 | if (rc) | |
8018 | goto clean2_5; /* pci, lu, aer/h */ | |
edd16368 | 8019 | |
2946e82b | 8020 | sprintf(h->devname, HPSA "%d", h->scsi_host->host_no); |
edd16368 SC |
8021 | h->ctlr = number_of_controllers; |
8022 | number_of_controllers++; | |
edd16368 SC |
8023 | |
8024 | /* configure PCI DMA stuff */ | |
ecd9aad4 SC |
8025 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
8026 | if (rc == 0) { | |
edd16368 | 8027 | dac = 1; |
ecd9aad4 SC |
8028 | } else { |
8029 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
8030 | if (rc == 0) { | |
8031 | dac = 0; | |
8032 | } else { | |
8033 | dev_err(&pdev->dev, "no suitable DMA available\n"); | |
2946e82b | 8034 | goto clean3; /* shost, pci, lu, aer/h */ |
ecd9aad4 | 8035 | } |
edd16368 SC |
8036 | } |
8037 | ||
8038 | /* make sure the board interrupts are off */ | |
8039 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
10f66018 | 8040 | |
105a3dbc RE |
8041 | rc = hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx); |
8042 | if (rc) | |
2946e82b | 8043 | goto clean3; /* shost, pci, lu, aer/h */ |
d37ffbe4 | 8044 | rc = hpsa_alloc_cmd_pool(h); |
8947fd10 | 8045 | if (rc) |
2946e82b | 8046 | goto clean4; /* irq, shost, pci, lu, aer/h */ |
105a3dbc RE |
8047 | rc = hpsa_alloc_sg_chain_blocks(h); |
8048 | if (rc) | |
2946e82b | 8049 | goto clean5; /* cmd, irq, shost, pci, lu, aer/h */ |
a08a8471 | 8050 | init_waitqueue_head(&h->scan_wait_queue); |
9b5c48c2 | 8051 | init_waitqueue_head(&h->abort_cmd_wait_queue); |
d604f533 WS |
8052 | init_waitqueue_head(&h->event_sync_wait_queue); |
8053 | mutex_init(&h->reset_mutex); | |
a08a8471 | 8054 | h->scan_finished = 1; /* no scan currently in progress */ |
edd16368 SC |
8055 | |
8056 | pci_set_drvdata(pdev, h); | |
9a41338e | 8057 | h->ndevices = 0; |
2946e82b | 8058 | |
9a41338e | 8059 | spin_lock_init(&h->devlock); |
105a3dbc RE |
8060 | rc = hpsa_put_ctlr_into_performant_mode(h); |
8061 | if (rc) | |
2946e82b RE |
8062 | goto clean6; /* sg, cmd, irq, shost, pci, lu, aer/h */ |
8063 | ||
8064 | /* hook into SCSI subsystem */ | |
8065 | rc = hpsa_scsi_add_host(h); | |
8066 | if (rc) | |
8067 | goto clean7; /* perf, sg, cmd, irq, shost, pci, lu, aer/h */ | |
2efa5929 RE |
8068 | |
8069 | /* create the resubmit workqueue */ | |
8070 | h->rescan_ctlr_wq = hpsa_create_controller_wq(h, "rescan"); | |
8071 | if (!h->rescan_ctlr_wq) { | |
8072 | rc = -ENOMEM; | |
8073 | goto clean7; | |
8074 | } | |
8075 | ||
8076 | h->resubmit_wq = hpsa_create_controller_wq(h, "resubmit"); | |
8077 | if (!h->resubmit_wq) { | |
8078 | rc = -ENOMEM; | |
8079 | goto clean7; /* aer/h */ | |
8080 | } | |
64670ac8 | 8081 | |
105a3dbc RE |
8082 | /* |
8083 | * At this point, the controller is ready to take commands. | |
64670ac8 SC |
8084 | * Now, if reset_devices and the hard reset didn't work, try |
8085 | * the soft reset and see if that works. | |
8086 | */ | |
8087 | if (try_soft_reset) { | |
8088 | ||
8089 | /* This is kind of gross. We may or may not get a completion | |
8090 | * from the soft reset command, and if we do, then the value | |
8091 | * from the fifo may or may not be valid. So, we wait 10 secs | |
8092 | * after the reset throwing away any completions we get during | |
8093 | * that time. Unregister the interrupt handler and register | |
8094 | * fake ones to scoop up any residual completions. | |
8095 | */ | |
8096 | spin_lock_irqsave(&h->lock, flags); | |
8097 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
8098 | spin_unlock_irqrestore(&h->lock, flags); | |
ec501a18 | 8099 | hpsa_free_irqs(h); |
9ee61794 | 8100 | rc = hpsa_request_irqs(h, hpsa_msix_discard_completions, |
64670ac8 SC |
8101 | hpsa_intx_discard_completions); |
8102 | if (rc) { | |
9ee61794 RE |
8103 | dev_warn(&h->pdev->dev, |
8104 | "Failed to request_irq after soft reset.\n"); | |
d498757c | 8105 | /* |
b2ef480c RE |
8106 | * cannot goto clean7 or free_irqs will be called |
8107 | * again. Instead, do its work | |
8108 | */ | |
8109 | hpsa_free_performant_mode(h); /* clean7 */ | |
8110 | hpsa_free_sg_chain_blocks(h); /* clean6 */ | |
8111 | hpsa_free_cmd_pool(h); /* clean5 */ | |
8112 | /* | |
8113 | * skip hpsa_free_irqs(h) clean4 since that | |
8114 | * was just called before request_irqs failed | |
d498757c RE |
8115 | */ |
8116 | goto clean3; | |
64670ac8 SC |
8117 | } |
8118 | ||
8119 | rc = hpsa_kdump_soft_reset(h); | |
8120 | if (rc) | |
8121 | /* Neither hard nor soft reset worked, we're hosed. */ | |
7ef7323f | 8122 | goto clean7; |
64670ac8 SC |
8123 | |
8124 | dev_info(&h->pdev->dev, "Board READY.\n"); | |
8125 | dev_info(&h->pdev->dev, | |
8126 | "Waiting for stale completions to drain.\n"); | |
8127 | h->access.set_intr_mask(h, HPSA_INTR_ON); | |
8128 | msleep(10000); | |
8129 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
8130 | ||
8131 | rc = controller_reset_failed(h->cfgtable); | |
8132 | if (rc) | |
8133 | dev_info(&h->pdev->dev, | |
8134 | "Soft reset appears to have failed.\n"); | |
8135 | ||
8136 | /* since the controller's reset, we have to go back and re-init | |
8137 | * everything. Easiest to just forget what we've done and do it | |
8138 | * all over again. | |
8139 | */ | |
8140 | hpsa_undo_allocations_after_kdump_soft_reset(h); | |
8141 | try_soft_reset = 0; | |
8142 | if (rc) | |
b2ef480c | 8143 | /* don't goto clean, we already unallocated */ |
64670ac8 SC |
8144 | return -ENODEV; |
8145 | ||
8146 | goto reinit_after_soft_reset; | |
8147 | } | |
edd16368 | 8148 | |
105a3dbc RE |
8149 | /* Enable Accelerated IO path at driver layer */ |
8150 | h->acciopath_status = 1; | |
da0697bd | 8151 | |
e863d68e | 8152 | |
edd16368 SC |
8153 | /* Turn the interrupts on so we can service requests */ |
8154 | h->access.set_intr_mask(h, HPSA_INTR_ON); | |
8155 | ||
339b2b14 | 8156 | hpsa_hba_inquiry(h); |
8a98db73 SC |
8157 | |
8158 | /* Monitor the controller for firmware lockups */ | |
8159 | h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL; | |
8160 | INIT_DELAYED_WORK(&h->monitor_ctlr_work, hpsa_monitor_ctlr_worker); | |
8161 | schedule_delayed_work(&h->monitor_ctlr_work, | |
8162 | h->heartbeat_sample_interval); | |
6636e7f4 DB |
8163 | INIT_DELAYED_WORK(&h->rescan_ctlr_work, hpsa_rescan_ctlr_worker); |
8164 | queue_delayed_work(h->rescan_ctlr_wq, &h->rescan_ctlr_work, | |
8165 | h->heartbeat_sample_interval); | |
88bf6d62 | 8166 | return 0; |
edd16368 | 8167 | |
2946e82b | 8168 | clean7: /* perf, sg, cmd, irq, shost, pci, lu, aer/h */ |
105a3dbc RE |
8169 | hpsa_free_performant_mode(h); |
8170 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
8171 | clean6: /* sg, cmd, irq, pci, lockup, wq/aer/h */ | |
33a2ffce | 8172 | hpsa_free_sg_chain_blocks(h); |
2946e82b | 8173 | clean5: /* cmd, irq, shost, pci, lu, aer/h */ |
2e9d1b36 | 8174 | hpsa_free_cmd_pool(h); |
2946e82b | 8175 | clean4: /* irq, shost, pci, lu, aer/h */ |
ec501a18 | 8176 | hpsa_free_irqs(h); |
2946e82b RE |
8177 | clean3: /* shost, pci, lu, aer/h */ |
8178 | scsi_host_put(h->scsi_host); | |
8179 | h->scsi_host = NULL; | |
8180 | clean2_5: /* pci, lu, aer/h */ | |
195f2c65 | 8181 | hpsa_free_pci_init(h); |
2946e82b | 8182 | clean2: /* lu, aer/h */ |
105a3dbc RE |
8183 | if (h->lockup_detected) { |
8184 | free_percpu(h->lockup_detected); | |
8185 | h->lockup_detected = NULL; | |
8186 | } | |
8187 | clean1: /* wq/aer/h */ | |
8188 | if (h->resubmit_wq) { | |
080ef1cc | 8189 | destroy_workqueue(h->resubmit_wq); |
105a3dbc RE |
8190 | h->resubmit_wq = NULL; |
8191 | } | |
8192 | if (h->rescan_ctlr_wq) { | |
6636e7f4 | 8193 | destroy_workqueue(h->rescan_ctlr_wq); |
105a3dbc RE |
8194 | h->rescan_ctlr_wq = NULL; |
8195 | } | |
edd16368 | 8196 | kfree(h); |
ecd9aad4 | 8197 | return rc; |
edd16368 SC |
8198 | } |
8199 | ||
8200 | static void hpsa_flush_cache(struct ctlr_info *h) | |
8201 | { | |
8202 | char *flush_buf; | |
8203 | struct CommandList *c; | |
25163bd5 | 8204 | int rc; |
702890e3 | 8205 | |
094963da | 8206 | if (unlikely(lockup_detected(h))) |
702890e3 | 8207 | return; |
edd16368 SC |
8208 | flush_buf = kzalloc(4, GFP_KERNEL); |
8209 | if (!flush_buf) | |
8210 | return; | |
8211 | ||
45fcb86e | 8212 | c = cmd_alloc(h); |
bf43caf3 | 8213 | |
a2dac136 SC |
8214 | if (fill_cmd(c, HPSA_CACHE_FLUSH, h, flush_buf, 4, 0, |
8215 | RAID_CTLR_LUNID, TYPE_CMD)) { | |
8216 | goto out; | |
8217 | } | |
25163bd5 WS |
8218 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
8219 | PCI_DMA_TODEVICE, NO_TIMEOUT); | |
8220 | if (rc) | |
8221 | goto out; | |
edd16368 | 8222 | if (c->err_info->CommandStatus != 0) |
a2dac136 | 8223 | out: |
edd16368 SC |
8224 | dev_warn(&h->pdev->dev, |
8225 | "error flushing cache on controller\n"); | |
45fcb86e | 8226 | cmd_free(h, c); |
edd16368 SC |
8227 | kfree(flush_buf); |
8228 | } | |
8229 | ||
8230 | static void hpsa_shutdown(struct pci_dev *pdev) | |
8231 | { | |
8232 | struct ctlr_info *h; | |
8233 | ||
8234 | h = pci_get_drvdata(pdev); | |
8235 | /* Turn board interrupts off and send the flush cache command | |
8236 | * sendcmd will turn off interrupt, and send the flush... | |
8237 | * To write all data in the battery backed cache to disks | |
8238 | */ | |
8239 | hpsa_flush_cache(h); | |
8240 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
105a3dbc | 8241 | hpsa_free_irqs(h); /* init_one 4 */ |
cc64c817 | 8242 | hpsa_disable_interrupt_mode(h); /* pci_init 2 */ |
edd16368 SC |
8243 | } |
8244 | ||
6f039790 | 8245 | static void hpsa_free_device_info(struct ctlr_info *h) |
55e14e76 SC |
8246 | { |
8247 | int i; | |
8248 | ||
105a3dbc | 8249 | for (i = 0; i < h->ndevices; i++) { |
55e14e76 | 8250 | kfree(h->dev[i]); |
105a3dbc RE |
8251 | h->dev[i] = NULL; |
8252 | } | |
55e14e76 SC |
8253 | } |
8254 | ||
6f039790 | 8255 | static void hpsa_remove_one(struct pci_dev *pdev) |
edd16368 SC |
8256 | { |
8257 | struct ctlr_info *h; | |
8a98db73 | 8258 | unsigned long flags; |
edd16368 SC |
8259 | |
8260 | if (pci_get_drvdata(pdev) == NULL) { | |
a0c12413 | 8261 | dev_err(&pdev->dev, "unable to remove device\n"); |
edd16368 SC |
8262 | return; |
8263 | } | |
8264 | h = pci_get_drvdata(pdev); | |
8a98db73 SC |
8265 | |
8266 | /* Get rid of any controller monitoring work items */ | |
8267 | spin_lock_irqsave(&h->lock, flags); | |
8268 | h->remove_in_progress = 1; | |
8a98db73 | 8269 | spin_unlock_irqrestore(&h->lock, flags); |
6636e7f4 DB |
8270 | cancel_delayed_work_sync(&h->monitor_ctlr_work); |
8271 | cancel_delayed_work_sync(&h->rescan_ctlr_work); | |
8272 | destroy_workqueue(h->rescan_ctlr_wq); | |
8273 | destroy_workqueue(h->resubmit_wq); | |
cc64c817 | 8274 | |
2d041306 DB |
8275 | /* |
8276 | * Call before disabling interrupts. | |
8277 | * scsi_remove_host can trigger I/O operations especially | |
8278 | * when multipath is enabled. There can be SYNCHRONIZE CACHE | |
8279 | * operations which cannot complete and will hang the system. | |
8280 | */ | |
8281 | if (h->scsi_host) | |
8282 | scsi_remove_host(h->scsi_host); /* init_one 8 */ | |
105a3dbc | 8283 | /* includes hpsa_free_irqs - init_one 4 */ |
195f2c65 | 8284 | /* includes hpsa_disable_interrupt_mode - pci_init 2 */ |
edd16368 | 8285 | hpsa_shutdown(pdev); |
cc64c817 | 8286 | |
105a3dbc RE |
8287 | hpsa_free_device_info(h); /* scan */ |
8288 | ||
2946e82b RE |
8289 | kfree(h->hba_inquiry_data); /* init_one 10 */ |
8290 | h->hba_inquiry_data = NULL; /* init_one 10 */ | |
2946e82b | 8291 | hpsa_free_ioaccel2_sg_chain_blocks(h); |
105a3dbc RE |
8292 | hpsa_free_performant_mode(h); /* init_one 7 */ |
8293 | hpsa_free_sg_chain_blocks(h); /* init_one 6 */ | |
8294 | hpsa_free_cmd_pool(h); /* init_one 5 */ | |
8295 | ||
8296 | /* hpsa_free_irqs already called via hpsa_shutdown init_one 4 */ | |
195f2c65 | 8297 | |
2946e82b RE |
8298 | scsi_host_put(h->scsi_host); /* init_one 3 */ |
8299 | h->scsi_host = NULL; /* init_one 3 */ | |
8300 | ||
195f2c65 | 8301 | /* includes hpsa_disable_interrupt_mode - pci_init 2 */ |
2946e82b | 8302 | hpsa_free_pci_init(h); /* init_one 2.5 */ |
195f2c65 | 8303 | |
105a3dbc RE |
8304 | free_percpu(h->lockup_detected); /* init_one 2 */ |
8305 | h->lockup_detected = NULL; /* init_one 2 */ | |
8306 | /* (void) pci_disable_pcie_error_reporting(pdev); */ /* init_one 1 */ | |
8307 | kfree(h); /* init_one 1 */ | |
edd16368 SC |
8308 | } |
8309 | ||
8310 | static int hpsa_suspend(__attribute__((unused)) struct pci_dev *pdev, | |
8311 | __attribute__((unused)) pm_message_t state) | |
8312 | { | |
8313 | return -ENOSYS; | |
8314 | } | |
8315 | ||
8316 | static int hpsa_resume(__attribute__((unused)) struct pci_dev *pdev) | |
8317 | { | |
8318 | return -ENOSYS; | |
8319 | } | |
8320 | ||
8321 | static struct pci_driver hpsa_pci_driver = { | |
f79cfec6 | 8322 | .name = HPSA, |
edd16368 | 8323 | .probe = hpsa_init_one, |
6f039790 | 8324 | .remove = hpsa_remove_one, |
edd16368 SC |
8325 | .id_table = hpsa_pci_device_id, /* id_table */ |
8326 | .shutdown = hpsa_shutdown, | |
8327 | .suspend = hpsa_suspend, | |
8328 | .resume = hpsa_resume, | |
8329 | }; | |
8330 | ||
303932fd DB |
8331 | /* Fill in bucket_map[], given nsgs (the max number of |
8332 | * scatter gather elements supported) and bucket[], | |
8333 | * which is an array of 8 integers. The bucket[] array | |
8334 | * contains 8 different DMA transfer sizes (in 16 | |
8335 | * byte increments) which the controller uses to fetch | |
8336 | * commands. This function fills in bucket_map[], which | |
8337 | * maps a given number of scatter gather elements to one of | |
8338 | * the 8 DMA transfer sizes. The point of it is to allow the | |
8339 | * controller to only do as much DMA as needed to fetch the | |
8340 | * command, with the DMA transfer size encoded in the lower | |
8341 | * bits of the command address. | |
8342 | */ | |
8343 | static void calc_bucket_map(int bucket[], int num_buckets, | |
2b08b3e9 | 8344 | int nsgs, int min_blocks, u32 *bucket_map) |
303932fd DB |
8345 | { |
8346 | int i, j, b, size; | |
8347 | ||
303932fd DB |
8348 | /* Note, bucket_map must have nsgs+1 entries. */ |
8349 | for (i = 0; i <= nsgs; i++) { | |
8350 | /* Compute size of a command with i SG entries */ | |
e1f7de0c | 8351 | size = i + min_blocks; |
303932fd DB |
8352 | b = num_buckets; /* Assume the biggest bucket */ |
8353 | /* Find the bucket that is just big enough */ | |
e1f7de0c | 8354 | for (j = 0; j < num_buckets; j++) { |
303932fd DB |
8355 | if (bucket[j] >= size) { |
8356 | b = j; | |
8357 | break; | |
8358 | } | |
8359 | } | |
8360 | /* for a command with i SG entries, use bucket b. */ | |
8361 | bucket_map[i] = b; | |
8362 | } | |
8363 | } | |
8364 | ||
105a3dbc RE |
8365 | /* |
8366 | * return -ENODEV on err, 0 on success (or no action) | |
8367 | * allocates numerous items that must be freed later | |
8368 | */ | |
c706a795 | 8369 | static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support) |
303932fd | 8370 | { |
6c311b57 SC |
8371 | int i; |
8372 | unsigned long register_value; | |
e1f7de0c MG |
8373 | unsigned long transMethod = CFGTBL_Trans_Performant | |
8374 | (trans_support & CFGTBL_Trans_use_short_tags) | | |
b9af4937 SC |
8375 | CFGTBL_Trans_enable_directed_msix | |
8376 | (trans_support & (CFGTBL_Trans_io_accel1 | | |
8377 | CFGTBL_Trans_io_accel2)); | |
e1f7de0c | 8378 | struct access_method access = SA5_performant_access; |
def342bd SC |
8379 | |
8380 | /* This is a bit complicated. There are 8 registers on | |
8381 | * the controller which we write to to tell it 8 different | |
8382 | * sizes of commands which there may be. It's a way of | |
8383 | * reducing the DMA done to fetch each command. Encoded into | |
8384 | * each command's tag are 3 bits which communicate to the controller | |
8385 | * which of the eight sizes that command fits within. The size of | |
8386 | * each command depends on how many scatter gather entries there are. | |
8387 | * Each SG entry requires 16 bytes. The eight registers are programmed | |
8388 | * with the number of 16-byte blocks a command of that size requires. | |
8389 | * The smallest command possible requires 5 such 16 byte blocks. | |
d66ae08b | 8390 | * the largest command possible requires SG_ENTRIES_IN_CMD + 4 16-byte |
def342bd SC |
8391 | * blocks. Note, this only extends to the SG entries contained |
8392 | * within the command block, and does not extend to chained blocks | |
8393 | * of SG elements. bft[] contains the eight values we write to | |
8394 | * the registers. They are not evenly distributed, but have more | |
8395 | * sizes for small commands, and fewer sizes for larger commands. | |
8396 | */ | |
d66ae08b | 8397 | int bft[8] = {5, 6, 8, 10, 12, 20, 28, SG_ENTRIES_IN_CMD + 4}; |
b9af4937 SC |
8398 | #define MIN_IOACCEL2_BFT_ENTRY 5 |
8399 | #define HPSA_IOACCEL2_HEADER_SZ 4 | |
8400 | int bft2[16] = {MIN_IOACCEL2_BFT_ENTRY, 6, 7, 8, 9, 10, 11, 12, | |
8401 | 13, 14, 15, 16, 17, 18, 19, | |
8402 | HPSA_IOACCEL2_HEADER_SZ + IOACCEL2_MAXSGENTRIES}; | |
8403 | BUILD_BUG_ON(ARRAY_SIZE(bft2) != 16); | |
8404 | BUILD_BUG_ON(ARRAY_SIZE(bft) != 8); | |
8405 | BUILD_BUG_ON(offsetof(struct io_accel2_cmd, sg) > | |
8406 | 16 * MIN_IOACCEL2_BFT_ENTRY); | |
8407 | BUILD_BUG_ON(sizeof(struct ioaccel2_sg_element) != 16); | |
d66ae08b | 8408 | BUILD_BUG_ON(28 > SG_ENTRIES_IN_CMD + 4); |
303932fd DB |
8409 | /* 5 = 1 s/g entry or 4k |
8410 | * 6 = 2 s/g entry or 8k | |
8411 | * 8 = 4 s/g entry or 16k | |
8412 | * 10 = 6 s/g entry or 24k | |
8413 | */ | |
303932fd | 8414 | |
b3a52e79 SC |
8415 | /* If the controller supports either ioaccel method then |
8416 | * we can also use the RAID stack submit path that does not | |
8417 | * perform the superfluous readl() after each command submission. | |
8418 | */ | |
8419 | if (trans_support & (CFGTBL_Trans_io_accel1 | CFGTBL_Trans_io_accel2)) | |
8420 | access = SA5_performant_access_no_read; | |
8421 | ||
303932fd | 8422 | /* Controller spec: zero out this buffer. */ |
072b0518 SC |
8423 | for (i = 0; i < h->nreply_queues; i++) |
8424 | memset(h->reply_queue[i].head, 0, h->reply_queue_size); | |
303932fd | 8425 | |
d66ae08b SC |
8426 | bft[7] = SG_ENTRIES_IN_CMD + 4; |
8427 | calc_bucket_map(bft, ARRAY_SIZE(bft), | |
e1f7de0c | 8428 | SG_ENTRIES_IN_CMD, 4, h->blockFetchTable); |
303932fd DB |
8429 | for (i = 0; i < 8; i++) |
8430 | writel(bft[i], &h->transtable->BlockFetch[i]); | |
8431 | ||
8432 | /* size of controller ring buffer */ | |
8433 | writel(h->max_commands, &h->transtable->RepQSize); | |
254f796b | 8434 | writel(h->nreply_queues, &h->transtable->RepQCount); |
303932fd DB |
8435 | writel(0, &h->transtable->RepQCtrAddrLow32); |
8436 | writel(0, &h->transtable->RepQCtrAddrHigh32); | |
254f796b MG |
8437 | |
8438 | for (i = 0; i < h->nreply_queues; i++) { | |
8439 | writel(0, &h->transtable->RepQAddr[i].upper); | |
072b0518 | 8440 | writel(h->reply_queue[i].busaddr, |
254f796b MG |
8441 | &h->transtable->RepQAddr[i].lower); |
8442 | } | |
8443 | ||
b9af4937 | 8444 | writel(0, &h->cfgtable->HostWrite.command_pool_addr_hi); |
e1f7de0c MG |
8445 | writel(transMethod, &(h->cfgtable->HostWrite.TransportRequest)); |
8446 | /* | |
8447 | * enable outbound interrupt coalescing in accelerator mode; | |
8448 | */ | |
8449 | if (trans_support & CFGTBL_Trans_io_accel1) { | |
8450 | access = SA5_ioaccel_mode1_access; | |
8451 | writel(10, &h->cfgtable->HostWrite.CoalIntDelay); | |
8452 | writel(4, &h->cfgtable->HostWrite.CoalIntCount); | |
c349775e ST |
8453 | } else { |
8454 | if (trans_support & CFGTBL_Trans_io_accel2) { | |
8455 | access = SA5_ioaccel_mode2_access; | |
8456 | writel(10, &h->cfgtable->HostWrite.CoalIntDelay); | |
8457 | writel(4, &h->cfgtable->HostWrite.CoalIntCount); | |
8458 | } | |
e1f7de0c | 8459 | } |
303932fd | 8460 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); |
c706a795 RE |
8461 | if (hpsa_wait_for_mode_change_ack(h)) { |
8462 | dev_err(&h->pdev->dev, | |
8463 | "performant mode problem - doorbell timeout\n"); | |
8464 | return -ENODEV; | |
8465 | } | |
303932fd DB |
8466 | register_value = readl(&(h->cfgtable->TransportActive)); |
8467 | if (!(register_value & CFGTBL_Trans_Performant)) { | |
050f7147 SC |
8468 | dev_err(&h->pdev->dev, |
8469 | "performant mode problem - transport not active\n"); | |
c706a795 | 8470 | return -ENODEV; |
303932fd | 8471 | } |
960a30e7 | 8472 | /* Change the access methods to the performant access methods */ |
e1f7de0c MG |
8473 | h->access = access; |
8474 | h->transMethod = transMethod; | |
8475 | ||
b9af4937 SC |
8476 | if (!((trans_support & CFGTBL_Trans_io_accel1) || |
8477 | (trans_support & CFGTBL_Trans_io_accel2))) | |
c706a795 | 8478 | return 0; |
e1f7de0c | 8479 | |
b9af4937 SC |
8480 | if (trans_support & CFGTBL_Trans_io_accel1) { |
8481 | /* Set up I/O accelerator mode */ | |
8482 | for (i = 0; i < h->nreply_queues; i++) { | |
8483 | writel(i, h->vaddr + IOACCEL_MODE1_REPLY_QUEUE_INDEX); | |
8484 | h->reply_queue[i].current_entry = | |
8485 | readl(h->vaddr + IOACCEL_MODE1_PRODUCER_INDEX); | |
8486 | } | |
8487 | bft[7] = h->ioaccel_maxsg + 8; | |
8488 | calc_bucket_map(bft, ARRAY_SIZE(bft), h->ioaccel_maxsg, 8, | |
8489 | h->ioaccel1_blockFetchTable); | |
e1f7de0c | 8490 | |
b9af4937 | 8491 | /* initialize all reply queue entries to unused */ |
072b0518 SC |
8492 | for (i = 0; i < h->nreply_queues; i++) |
8493 | memset(h->reply_queue[i].head, | |
8494 | (u8) IOACCEL_MODE1_REPLY_UNUSED, | |
8495 | h->reply_queue_size); | |
e1f7de0c | 8496 | |
b9af4937 SC |
8497 | /* set all the constant fields in the accelerator command |
8498 | * frames once at init time to save CPU cycles later. | |
8499 | */ | |
8500 | for (i = 0; i < h->nr_cmds; i++) { | |
8501 | struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[i]; | |
8502 | ||
8503 | cp->function = IOACCEL1_FUNCTION_SCSIIO; | |
8504 | cp->err_info = (u32) (h->errinfo_pool_dhandle + | |
8505 | (i * sizeof(struct ErrorInfo))); | |
8506 | cp->err_info_len = sizeof(struct ErrorInfo); | |
8507 | cp->sgl_offset = IOACCEL1_SGLOFFSET; | |
2b08b3e9 DB |
8508 | cp->host_context_flags = |
8509 | cpu_to_le16(IOACCEL1_HCFLAGS_CISS_FORMAT); | |
b9af4937 SC |
8510 | cp->timeout_sec = 0; |
8511 | cp->ReplyQueue = 0; | |
50a0decf | 8512 | cp->tag = |
f2405db8 | 8513 | cpu_to_le64((i << DIRECT_LOOKUP_SHIFT)); |
50a0decf SC |
8514 | cp->host_addr = |
8515 | cpu_to_le64(h->ioaccel_cmd_pool_dhandle + | |
b9af4937 | 8516 | (i * sizeof(struct io_accel1_cmd))); |
b9af4937 SC |
8517 | } |
8518 | } else if (trans_support & CFGTBL_Trans_io_accel2) { | |
8519 | u64 cfg_offset, cfg_base_addr_index; | |
8520 | u32 bft2_offset, cfg_base_addr; | |
8521 | int rc; | |
8522 | ||
8523 | rc = hpsa_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr, | |
8524 | &cfg_base_addr_index, &cfg_offset); | |
8525 | BUILD_BUG_ON(offsetof(struct io_accel2_cmd, sg) != 64); | |
8526 | bft2[15] = h->ioaccel_maxsg + HPSA_IOACCEL2_HEADER_SZ; | |
8527 | calc_bucket_map(bft2, ARRAY_SIZE(bft2), h->ioaccel_maxsg, | |
8528 | 4, h->ioaccel2_blockFetchTable); | |
8529 | bft2_offset = readl(&h->cfgtable->io_accel_request_size_offset); | |
8530 | BUILD_BUG_ON(offsetof(struct CfgTable, | |
8531 | io_accel_request_size_offset) != 0xb8); | |
8532 | h->ioaccel2_bft2_regs = | |
8533 | remap_pci_mem(pci_resource_start(h->pdev, | |
8534 | cfg_base_addr_index) + | |
8535 | cfg_offset + bft2_offset, | |
8536 | ARRAY_SIZE(bft2) * | |
8537 | sizeof(*h->ioaccel2_bft2_regs)); | |
8538 | for (i = 0; i < ARRAY_SIZE(bft2); i++) | |
8539 | writel(bft2[i], &h->ioaccel2_bft2_regs[i]); | |
e1f7de0c | 8540 | } |
b9af4937 | 8541 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); |
c706a795 RE |
8542 | if (hpsa_wait_for_mode_change_ack(h)) { |
8543 | dev_err(&h->pdev->dev, | |
8544 | "performant mode problem - enabling ioaccel mode\n"); | |
8545 | return -ENODEV; | |
8546 | } | |
8547 | return 0; | |
e1f7de0c MG |
8548 | } |
8549 | ||
1fb7c98a RE |
8550 | /* Free ioaccel1 mode command blocks and block fetch table */ |
8551 | static void hpsa_free_ioaccel1_cmd_and_bft(struct ctlr_info *h) | |
8552 | { | |
105a3dbc | 8553 | if (h->ioaccel_cmd_pool) { |
1fb7c98a RE |
8554 | pci_free_consistent(h->pdev, |
8555 | h->nr_cmds * sizeof(*h->ioaccel_cmd_pool), | |
8556 | h->ioaccel_cmd_pool, | |
8557 | h->ioaccel_cmd_pool_dhandle); | |
105a3dbc RE |
8558 | h->ioaccel_cmd_pool = NULL; |
8559 | h->ioaccel_cmd_pool_dhandle = 0; | |
8560 | } | |
1fb7c98a | 8561 | kfree(h->ioaccel1_blockFetchTable); |
105a3dbc | 8562 | h->ioaccel1_blockFetchTable = NULL; |
1fb7c98a RE |
8563 | } |
8564 | ||
d37ffbe4 RE |
8565 | /* Allocate ioaccel1 mode command blocks and block fetch table */ |
8566 | static int hpsa_alloc_ioaccel1_cmd_and_bft(struct ctlr_info *h) | |
e1f7de0c | 8567 | { |
283b4a9b SC |
8568 | h->ioaccel_maxsg = |
8569 | readl(&(h->cfgtable->io_accel_max_embedded_sg_count)); | |
8570 | if (h->ioaccel_maxsg > IOACCEL1_MAXSGENTRIES) | |
8571 | h->ioaccel_maxsg = IOACCEL1_MAXSGENTRIES; | |
8572 | ||
e1f7de0c MG |
8573 | /* Command structures must be aligned on a 128-byte boundary |
8574 | * because the 7 lower bits of the address are used by the | |
8575 | * hardware. | |
8576 | */ | |
e1f7de0c MG |
8577 | BUILD_BUG_ON(sizeof(struct io_accel1_cmd) % |
8578 | IOACCEL1_COMMANDLIST_ALIGNMENT); | |
8579 | h->ioaccel_cmd_pool = | |
8580 | pci_alloc_consistent(h->pdev, | |
8581 | h->nr_cmds * sizeof(*h->ioaccel_cmd_pool), | |
8582 | &(h->ioaccel_cmd_pool_dhandle)); | |
8583 | ||
8584 | h->ioaccel1_blockFetchTable = | |
283b4a9b | 8585 | kmalloc(((h->ioaccel_maxsg + 1) * |
e1f7de0c MG |
8586 | sizeof(u32)), GFP_KERNEL); |
8587 | ||
8588 | if ((h->ioaccel_cmd_pool == NULL) || | |
8589 | (h->ioaccel1_blockFetchTable == NULL)) | |
8590 | goto clean_up; | |
8591 | ||
8592 | memset(h->ioaccel_cmd_pool, 0, | |
8593 | h->nr_cmds * sizeof(*h->ioaccel_cmd_pool)); | |
8594 | return 0; | |
8595 | ||
8596 | clean_up: | |
1fb7c98a | 8597 | hpsa_free_ioaccel1_cmd_and_bft(h); |
2dd02d74 | 8598 | return -ENOMEM; |
6c311b57 SC |
8599 | } |
8600 | ||
1fb7c98a RE |
8601 | /* Free ioaccel2 mode command blocks and block fetch table */ |
8602 | static void hpsa_free_ioaccel2_cmd_and_bft(struct ctlr_info *h) | |
8603 | { | |
d9a729f3 WS |
8604 | hpsa_free_ioaccel2_sg_chain_blocks(h); |
8605 | ||
105a3dbc | 8606 | if (h->ioaccel2_cmd_pool) { |
1fb7c98a RE |
8607 | pci_free_consistent(h->pdev, |
8608 | h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool), | |
8609 | h->ioaccel2_cmd_pool, | |
8610 | h->ioaccel2_cmd_pool_dhandle); | |
105a3dbc RE |
8611 | h->ioaccel2_cmd_pool = NULL; |
8612 | h->ioaccel2_cmd_pool_dhandle = 0; | |
8613 | } | |
1fb7c98a | 8614 | kfree(h->ioaccel2_blockFetchTable); |
105a3dbc | 8615 | h->ioaccel2_blockFetchTable = NULL; |
1fb7c98a RE |
8616 | } |
8617 | ||
d37ffbe4 RE |
8618 | /* Allocate ioaccel2 mode command blocks and block fetch table */ |
8619 | static int hpsa_alloc_ioaccel2_cmd_and_bft(struct ctlr_info *h) | |
aca9012a | 8620 | { |
d9a729f3 WS |
8621 | int rc; |
8622 | ||
aca9012a SC |
8623 | /* Allocate ioaccel2 mode command blocks and block fetch table */ |
8624 | ||
8625 | h->ioaccel_maxsg = | |
8626 | readl(&(h->cfgtable->io_accel_max_embedded_sg_count)); | |
8627 | if (h->ioaccel_maxsg > IOACCEL2_MAXSGENTRIES) | |
8628 | h->ioaccel_maxsg = IOACCEL2_MAXSGENTRIES; | |
8629 | ||
aca9012a SC |
8630 | BUILD_BUG_ON(sizeof(struct io_accel2_cmd) % |
8631 | IOACCEL2_COMMANDLIST_ALIGNMENT); | |
8632 | h->ioaccel2_cmd_pool = | |
8633 | pci_alloc_consistent(h->pdev, | |
8634 | h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool), | |
8635 | &(h->ioaccel2_cmd_pool_dhandle)); | |
8636 | ||
8637 | h->ioaccel2_blockFetchTable = | |
8638 | kmalloc(((h->ioaccel_maxsg + 1) * | |
8639 | sizeof(u32)), GFP_KERNEL); | |
8640 | ||
8641 | if ((h->ioaccel2_cmd_pool == NULL) || | |
d9a729f3 WS |
8642 | (h->ioaccel2_blockFetchTable == NULL)) { |
8643 | rc = -ENOMEM; | |
8644 | goto clean_up; | |
8645 | } | |
8646 | ||
8647 | rc = hpsa_allocate_ioaccel2_sg_chain_blocks(h); | |
8648 | if (rc) | |
aca9012a SC |
8649 | goto clean_up; |
8650 | ||
8651 | memset(h->ioaccel2_cmd_pool, 0, | |
8652 | h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool)); | |
8653 | return 0; | |
8654 | ||
8655 | clean_up: | |
1fb7c98a | 8656 | hpsa_free_ioaccel2_cmd_and_bft(h); |
d9a729f3 | 8657 | return rc; |
aca9012a SC |
8658 | } |
8659 | ||
105a3dbc RE |
8660 | /* Free items allocated by hpsa_put_ctlr_into_performant_mode */ |
8661 | static void hpsa_free_performant_mode(struct ctlr_info *h) | |
8662 | { | |
8663 | kfree(h->blockFetchTable); | |
8664 | h->blockFetchTable = NULL; | |
8665 | hpsa_free_reply_queues(h); | |
8666 | hpsa_free_ioaccel1_cmd_and_bft(h); | |
8667 | hpsa_free_ioaccel2_cmd_and_bft(h); | |
8668 | } | |
8669 | ||
8670 | /* return -ENODEV on error, 0 on success (or no action) | |
8671 | * allocates numerous items that must be freed later | |
8672 | */ | |
8673 | static int hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h) | |
6c311b57 SC |
8674 | { |
8675 | u32 trans_support; | |
e1f7de0c MG |
8676 | unsigned long transMethod = CFGTBL_Trans_Performant | |
8677 | CFGTBL_Trans_use_short_tags; | |
105a3dbc | 8678 | int i, rc; |
6c311b57 | 8679 | |
02ec19c8 | 8680 | if (hpsa_simple_mode) |
105a3dbc | 8681 | return 0; |
02ec19c8 | 8682 | |
67c99a72 | 8683 | trans_support = readl(&(h->cfgtable->TransportSupport)); |
8684 | if (!(trans_support & PERFORMANT_MODE)) | |
105a3dbc | 8685 | return 0; |
67c99a72 | 8686 | |
e1f7de0c MG |
8687 | /* Check for I/O accelerator mode support */ |
8688 | if (trans_support & CFGTBL_Trans_io_accel1) { | |
8689 | transMethod |= CFGTBL_Trans_io_accel1 | | |
8690 | CFGTBL_Trans_enable_directed_msix; | |
105a3dbc RE |
8691 | rc = hpsa_alloc_ioaccel1_cmd_and_bft(h); |
8692 | if (rc) | |
8693 | return rc; | |
8694 | } else if (trans_support & CFGTBL_Trans_io_accel2) { | |
8695 | transMethod |= CFGTBL_Trans_io_accel2 | | |
aca9012a | 8696 | CFGTBL_Trans_enable_directed_msix; |
105a3dbc RE |
8697 | rc = hpsa_alloc_ioaccel2_cmd_and_bft(h); |
8698 | if (rc) | |
8699 | return rc; | |
e1f7de0c MG |
8700 | } |
8701 | ||
eee0f03a | 8702 | h->nreply_queues = h->msix_vector > 0 ? h->msix_vector : 1; |
cba3d38b | 8703 | hpsa_get_max_perf_mode_cmds(h); |
6c311b57 | 8704 | /* Performant mode ring buffer and supporting data structures */ |
072b0518 | 8705 | h->reply_queue_size = h->max_commands * sizeof(u64); |
6c311b57 | 8706 | |
254f796b | 8707 | for (i = 0; i < h->nreply_queues; i++) { |
072b0518 SC |
8708 | h->reply_queue[i].head = pci_alloc_consistent(h->pdev, |
8709 | h->reply_queue_size, | |
8710 | &(h->reply_queue[i].busaddr)); | |
105a3dbc RE |
8711 | if (!h->reply_queue[i].head) { |
8712 | rc = -ENOMEM; | |
8713 | goto clean1; /* rq, ioaccel */ | |
8714 | } | |
254f796b MG |
8715 | h->reply_queue[i].size = h->max_commands; |
8716 | h->reply_queue[i].wraparound = 1; /* spec: init to 1 */ | |
8717 | h->reply_queue[i].current_entry = 0; | |
8718 | } | |
8719 | ||
6c311b57 | 8720 | /* Need a block fetch table for performant mode */ |
d66ae08b | 8721 | h->blockFetchTable = kmalloc(((SG_ENTRIES_IN_CMD + 1) * |
6c311b57 | 8722 | sizeof(u32)), GFP_KERNEL); |
105a3dbc RE |
8723 | if (!h->blockFetchTable) { |
8724 | rc = -ENOMEM; | |
8725 | goto clean1; /* rq, ioaccel */ | |
8726 | } | |
6c311b57 | 8727 | |
105a3dbc RE |
8728 | rc = hpsa_enter_performant_mode(h, trans_support); |
8729 | if (rc) | |
8730 | goto clean2; /* bft, rq, ioaccel */ | |
8731 | return 0; | |
303932fd | 8732 | |
105a3dbc | 8733 | clean2: /* bft, rq, ioaccel */ |
303932fd | 8734 | kfree(h->blockFetchTable); |
105a3dbc RE |
8735 | h->blockFetchTable = NULL; |
8736 | clean1: /* rq, ioaccel */ | |
8737 | hpsa_free_reply_queues(h); | |
8738 | hpsa_free_ioaccel1_cmd_and_bft(h); | |
8739 | hpsa_free_ioaccel2_cmd_and_bft(h); | |
8740 | return rc; | |
303932fd DB |
8741 | } |
8742 | ||
23100dd9 | 8743 | static int is_accelerated_cmd(struct CommandList *c) |
76438d08 | 8744 | { |
23100dd9 SC |
8745 | return c->cmd_type == CMD_IOACCEL1 || c->cmd_type == CMD_IOACCEL2; |
8746 | } | |
8747 | ||
8748 | static void hpsa_drain_accel_commands(struct ctlr_info *h) | |
8749 | { | |
8750 | struct CommandList *c = NULL; | |
f2405db8 | 8751 | int i, accel_cmds_out; |
281a7fd0 | 8752 | int refcount; |
76438d08 | 8753 | |
f2405db8 | 8754 | do { /* wait for all outstanding ioaccel commands to drain out */ |
23100dd9 | 8755 | accel_cmds_out = 0; |
f2405db8 | 8756 | for (i = 0; i < h->nr_cmds; i++) { |
f2405db8 | 8757 | c = h->cmd_pool + i; |
281a7fd0 WS |
8758 | refcount = atomic_inc_return(&c->refcount); |
8759 | if (refcount > 1) /* Command is allocated */ | |
8760 | accel_cmds_out += is_accelerated_cmd(c); | |
8761 | cmd_free(h, c); | |
f2405db8 | 8762 | } |
23100dd9 | 8763 | if (accel_cmds_out <= 0) |
281a7fd0 | 8764 | break; |
76438d08 SC |
8765 | msleep(100); |
8766 | } while (1); | |
8767 | } | |
8768 | ||
edd16368 SC |
8769 | /* |
8770 | * This is it. Register the PCI driver information for the cards we control | |
8771 | * the OS will call our registered routines when it finds one of our cards. | |
8772 | */ | |
8773 | static int __init hpsa_init(void) | |
8774 | { | |
31468401 | 8775 | return pci_register_driver(&hpsa_pci_driver); |
edd16368 SC |
8776 | } |
8777 | ||
8778 | static void __exit hpsa_cleanup(void) | |
8779 | { | |
8780 | pci_unregister_driver(&hpsa_pci_driver); | |
edd16368 SC |
8781 | } |
8782 | ||
e1f7de0c MG |
8783 | static void __attribute__((unused)) verify_offsets(void) |
8784 | { | |
dd0e19f3 ST |
8785 | #define VERIFY_OFFSET(member, offset) \ |
8786 | BUILD_BUG_ON(offsetof(struct raid_map_data, member) != offset) | |
8787 | ||
8788 | VERIFY_OFFSET(structure_size, 0); | |
8789 | VERIFY_OFFSET(volume_blk_size, 4); | |
8790 | VERIFY_OFFSET(volume_blk_cnt, 8); | |
8791 | VERIFY_OFFSET(phys_blk_shift, 16); | |
8792 | VERIFY_OFFSET(parity_rotation_shift, 17); | |
8793 | VERIFY_OFFSET(strip_size, 18); | |
8794 | VERIFY_OFFSET(disk_starting_blk, 20); | |
8795 | VERIFY_OFFSET(disk_blk_cnt, 28); | |
8796 | VERIFY_OFFSET(data_disks_per_row, 36); | |
8797 | VERIFY_OFFSET(metadata_disks_per_row, 38); | |
8798 | VERIFY_OFFSET(row_cnt, 40); | |
8799 | VERIFY_OFFSET(layout_map_count, 42); | |
8800 | VERIFY_OFFSET(flags, 44); | |
8801 | VERIFY_OFFSET(dekindex, 46); | |
8802 | /* VERIFY_OFFSET(reserved, 48 */ | |
8803 | VERIFY_OFFSET(data, 64); | |
8804 | ||
8805 | #undef VERIFY_OFFSET | |
8806 | ||
b66cc250 MM |
8807 | #define VERIFY_OFFSET(member, offset) \ |
8808 | BUILD_BUG_ON(offsetof(struct io_accel2_cmd, member) != offset) | |
8809 | ||
8810 | VERIFY_OFFSET(IU_type, 0); | |
8811 | VERIFY_OFFSET(direction, 1); | |
8812 | VERIFY_OFFSET(reply_queue, 2); | |
8813 | /* VERIFY_OFFSET(reserved1, 3); */ | |
8814 | VERIFY_OFFSET(scsi_nexus, 4); | |
8815 | VERIFY_OFFSET(Tag, 8); | |
8816 | VERIFY_OFFSET(cdb, 16); | |
8817 | VERIFY_OFFSET(cciss_lun, 32); | |
8818 | VERIFY_OFFSET(data_len, 40); | |
8819 | VERIFY_OFFSET(cmd_priority_task_attr, 44); | |
8820 | VERIFY_OFFSET(sg_count, 45); | |
8821 | /* VERIFY_OFFSET(reserved3 */ | |
8822 | VERIFY_OFFSET(err_ptr, 48); | |
8823 | VERIFY_OFFSET(err_len, 56); | |
8824 | /* VERIFY_OFFSET(reserved4 */ | |
8825 | VERIFY_OFFSET(sg, 64); | |
8826 | ||
8827 | #undef VERIFY_OFFSET | |
8828 | ||
e1f7de0c MG |
8829 | #define VERIFY_OFFSET(member, offset) \ |
8830 | BUILD_BUG_ON(offsetof(struct io_accel1_cmd, member) != offset) | |
8831 | ||
8832 | VERIFY_OFFSET(dev_handle, 0x00); | |
8833 | VERIFY_OFFSET(reserved1, 0x02); | |
8834 | VERIFY_OFFSET(function, 0x03); | |
8835 | VERIFY_OFFSET(reserved2, 0x04); | |
8836 | VERIFY_OFFSET(err_info, 0x0C); | |
8837 | VERIFY_OFFSET(reserved3, 0x10); | |
8838 | VERIFY_OFFSET(err_info_len, 0x12); | |
8839 | VERIFY_OFFSET(reserved4, 0x13); | |
8840 | VERIFY_OFFSET(sgl_offset, 0x14); | |
8841 | VERIFY_OFFSET(reserved5, 0x15); | |
8842 | VERIFY_OFFSET(transfer_len, 0x1C); | |
8843 | VERIFY_OFFSET(reserved6, 0x20); | |
8844 | VERIFY_OFFSET(io_flags, 0x24); | |
8845 | VERIFY_OFFSET(reserved7, 0x26); | |
8846 | VERIFY_OFFSET(LUN, 0x34); | |
8847 | VERIFY_OFFSET(control, 0x3C); | |
8848 | VERIFY_OFFSET(CDB, 0x40); | |
8849 | VERIFY_OFFSET(reserved8, 0x50); | |
8850 | VERIFY_OFFSET(host_context_flags, 0x60); | |
8851 | VERIFY_OFFSET(timeout_sec, 0x62); | |
8852 | VERIFY_OFFSET(ReplyQueue, 0x64); | |
8853 | VERIFY_OFFSET(reserved9, 0x65); | |
50a0decf | 8854 | VERIFY_OFFSET(tag, 0x68); |
e1f7de0c MG |
8855 | VERIFY_OFFSET(host_addr, 0x70); |
8856 | VERIFY_OFFSET(CISS_LUN, 0x78); | |
8857 | VERIFY_OFFSET(SG, 0x78 + 8); | |
8858 | #undef VERIFY_OFFSET | |
8859 | } | |
8860 | ||
edd16368 SC |
8861 | module_init(hpsa_init); |
8862 | module_exit(hpsa_cleanup); |