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Commit | Line | Data |
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edd16368 SC |
1 | /* |
2 | * Disk Array driver for HP Smart Array SAS controllers | |
51c35139 | 3 | * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P. |
edd16368 SC |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; version 2 of the License. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
12 | * NON INFRINGEMENT. See the GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
17 | * | |
18 | * Questions/Comments/Bugfixes to iss_storagedev@hp.com | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/interrupt.h> | |
24 | #include <linux/types.h> | |
25 | #include <linux/pci.h> | |
e5a44df8 | 26 | #include <linux/pci-aspm.h> |
edd16368 SC |
27 | #include <linux/kernel.h> |
28 | #include <linux/slab.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/fs.h> | |
31 | #include <linux/timer.h> | |
edd16368 SC |
32 | #include <linux/init.h> |
33 | #include <linux/spinlock.h> | |
edd16368 SC |
34 | #include <linux/compat.h> |
35 | #include <linux/blktrace_api.h> | |
36 | #include <linux/uaccess.h> | |
37 | #include <linux/io.h> | |
38 | #include <linux/dma-mapping.h> | |
39 | #include <linux/completion.h> | |
40 | #include <linux/moduleparam.h> | |
41 | #include <scsi/scsi.h> | |
42 | #include <scsi/scsi_cmnd.h> | |
43 | #include <scsi/scsi_device.h> | |
44 | #include <scsi/scsi_host.h> | |
667e23d4 | 45 | #include <scsi/scsi_tcq.h> |
9437ac43 | 46 | #include <scsi/scsi_eh.h> |
73153fe5 | 47 | #include <scsi/scsi_dbg.h> |
edd16368 SC |
48 | #include <linux/cciss_ioctl.h> |
49 | #include <linux/string.h> | |
50 | #include <linux/bitmap.h> | |
60063497 | 51 | #include <linux/atomic.h> |
a0c12413 | 52 | #include <linux/jiffies.h> |
42a91641 | 53 | #include <linux/percpu-defs.h> |
094963da | 54 | #include <linux/percpu.h> |
2b08b3e9 | 55 | #include <asm/unaligned.h> |
283b4a9b | 56 | #include <asm/div64.h> |
edd16368 SC |
57 | #include "hpsa_cmd.h" |
58 | #include "hpsa.h" | |
59 | ||
60 | /* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */ | |
f532a3f9 | 61 | #define HPSA_DRIVER_VERSION "3.4.10-0" |
edd16368 | 62 | #define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")" |
f79cfec6 | 63 | #define HPSA "hpsa" |
edd16368 | 64 | |
007e7aa9 RE |
65 | /* How long to wait for CISS doorbell communication */ |
66 | #define CLEAR_EVENT_WAIT_INTERVAL 20 /* ms for each msleep() call */ | |
67 | #define MODE_CHANGE_WAIT_INTERVAL 10 /* ms for each msleep() call */ | |
68 | #define MAX_CLEAR_EVENT_WAIT 30000 /* times 20 ms = 600 s */ | |
69 | #define MAX_MODE_CHANGE_WAIT 2000 /* times 10 ms = 20 s */ | |
edd16368 SC |
70 | #define MAX_IOCTL_CONFIG_WAIT 1000 |
71 | ||
72 | /*define how many times we will try a command because of bus resets */ | |
73 | #define MAX_CMD_RETRIES 3 | |
74 | ||
75 | /* Embedded module documentation macros - see modules.h */ | |
76 | MODULE_AUTHOR("Hewlett-Packard Company"); | |
77 | MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \ | |
78 | HPSA_DRIVER_VERSION); | |
79 | MODULE_SUPPORTED_DEVICE("HP Smart Array Controllers"); | |
80 | MODULE_VERSION(HPSA_DRIVER_VERSION); | |
81 | MODULE_LICENSE("GPL"); | |
82 | ||
83 | static int hpsa_allow_any; | |
84 | module_param(hpsa_allow_any, int, S_IRUGO|S_IWUSR); | |
85 | MODULE_PARM_DESC(hpsa_allow_any, | |
86 | "Allow hpsa driver to access unknown HP Smart Array hardware"); | |
02ec19c8 SC |
87 | static int hpsa_simple_mode; |
88 | module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR); | |
89 | MODULE_PARM_DESC(hpsa_simple_mode, | |
90 | "Use 'simple mode' rather than 'performant mode'"); | |
edd16368 SC |
91 | |
92 | /* define the PCI info for the cards we can control */ | |
93 | static const struct pci_device_id hpsa_pci_device_id[] = { | |
edd16368 SC |
94 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3241}, |
95 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3243}, | |
96 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3245}, | |
97 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3247}, | |
98 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3249}, | |
163dbcd8 MM |
99 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324A}, |
100 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324B}, | |
f8b01eb9 | 101 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3233}, |
9143a961 | 102 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3350}, |
103 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3351}, | |
104 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3352}, | |
105 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3353}, | |
106 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3354}, | |
107 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3355}, | |
108 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSF, 0x103C, 0x3356}, | |
fe0c9610 MM |
109 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1921}, |
110 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1922}, | |
111 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1923}, | |
112 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1924}, | |
fe0c9610 MM |
113 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1926}, |
114 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1928}, | |
97b9f53d MM |
115 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSH, 0x103C, 0x1929}, |
116 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BD}, | |
117 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BE}, | |
118 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21BF}, | |
119 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C0}, | |
120 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C1}, | |
121 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C2}, | |
122 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C3}, | |
123 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C4}, | |
124 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C5}, | |
3b7a45e5 | 125 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C6}, |
97b9f53d MM |
126 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C7}, |
127 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C8}, | |
128 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21C9}, | |
3b7a45e5 JH |
129 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CA}, |
130 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CB}, | |
131 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CC}, | |
132 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CD}, | |
133 | {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSI, 0x103C, 0x21CE}, | |
fdfa4b6d | 134 | {PCI_VENDOR_ID_ADAPTEC2, 0x0290, 0x9005, 0x0580}, |
8e616a5e SC |
135 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0076}, |
136 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0087}, | |
137 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D}, | |
138 | {PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0088}, | |
139 | {PCI_VENDOR_ID_HP, 0x333f, 0x103c, 0x333f}, | |
7c03b870 | 140 | {PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, |
6798cc0a | 141 | PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, |
edd16368 SC |
142 | {0,} |
143 | }; | |
144 | ||
145 | MODULE_DEVICE_TABLE(pci, hpsa_pci_device_id); | |
146 | ||
147 | /* board_id = Subsystem Device ID & Vendor ID | |
148 | * product = Marketing Name for the board | |
149 | * access = Address of the struct of function pointers | |
150 | */ | |
151 | static struct board_type products[] = { | |
edd16368 SC |
152 | {0x3241103C, "Smart Array P212", &SA5_access}, |
153 | {0x3243103C, "Smart Array P410", &SA5_access}, | |
154 | {0x3245103C, "Smart Array P410i", &SA5_access}, | |
155 | {0x3247103C, "Smart Array P411", &SA5_access}, | |
156 | {0x3249103C, "Smart Array P812", &SA5_access}, | |
163dbcd8 MM |
157 | {0x324A103C, "Smart Array P712m", &SA5_access}, |
158 | {0x324B103C, "Smart Array P711m", &SA5_access}, | |
7d2cce58 | 159 | {0x3233103C, "HP StorageWorks 1210m", &SA5_access}, /* alias of 333f */ |
fe0c9610 MM |
160 | {0x3350103C, "Smart Array P222", &SA5_access}, |
161 | {0x3351103C, "Smart Array P420", &SA5_access}, | |
162 | {0x3352103C, "Smart Array P421", &SA5_access}, | |
163 | {0x3353103C, "Smart Array P822", &SA5_access}, | |
164 | {0x3354103C, "Smart Array P420i", &SA5_access}, | |
165 | {0x3355103C, "Smart Array P220i", &SA5_access}, | |
166 | {0x3356103C, "Smart Array P721m", &SA5_access}, | |
1fd6c8e3 MM |
167 | {0x1921103C, "Smart Array P830i", &SA5_access}, |
168 | {0x1922103C, "Smart Array P430", &SA5_access}, | |
169 | {0x1923103C, "Smart Array P431", &SA5_access}, | |
170 | {0x1924103C, "Smart Array P830", &SA5_access}, | |
171 | {0x1926103C, "Smart Array P731m", &SA5_access}, | |
172 | {0x1928103C, "Smart Array P230i", &SA5_access}, | |
173 | {0x1929103C, "Smart Array P530", &SA5_access}, | |
27fb8137 DB |
174 | {0x21BD103C, "Smart Array P244br", &SA5_access}, |
175 | {0x21BE103C, "Smart Array P741m", &SA5_access}, | |
176 | {0x21BF103C, "Smart HBA H240ar", &SA5_access}, | |
177 | {0x21C0103C, "Smart Array P440ar", &SA5_access}, | |
c8ae0ab1 | 178 | {0x21C1103C, "Smart Array P840ar", &SA5_access}, |
27fb8137 DB |
179 | {0x21C2103C, "Smart Array P440", &SA5_access}, |
180 | {0x21C3103C, "Smart Array P441", &SA5_access}, | |
97b9f53d | 181 | {0x21C4103C, "Smart Array", &SA5_access}, |
27fb8137 DB |
182 | {0x21C5103C, "Smart Array P841", &SA5_access}, |
183 | {0x21C6103C, "Smart HBA H244br", &SA5_access}, | |
184 | {0x21C7103C, "Smart HBA H240", &SA5_access}, | |
185 | {0x21C8103C, "Smart HBA H241", &SA5_access}, | |
97b9f53d | 186 | {0x21C9103C, "Smart Array", &SA5_access}, |
27fb8137 DB |
187 | {0x21CA103C, "Smart Array P246br", &SA5_access}, |
188 | {0x21CB103C, "Smart Array P840", &SA5_access}, | |
3b7a45e5 JH |
189 | {0x21CC103C, "Smart Array", &SA5_access}, |
190 | {0x21CD103C, "Smart Array", &SA5_access}, | |
27fb8137 | 191 | {0x21CE103C, "Smart HBA", &SA5_access}, |
fdfa4b6d | 192 | {0x05809005, "SmartHBA-SA", &SA5_access}, |
8e616a5e SC |
193 | {0x00761590, "HP Storage P1224 Array Controller", &SA5_access}, |
194 | {0x00871590, "HP Storage P1224e Array Controller", &SA5_access}, | |
195 | {0x007D1590, "HP Storage P1228 Array Controller", &SA5_access}, | |
196 | {0x00881590, "HP Storage P1228e Array Controller", &SA5_access}, | |
197 | {0x333f103c, "HP StorageWorks 1210m Array Controller", &SA5_access}, | |
edd16368 SC |
198 | {0xFFFF103C, "Unknown Smart Array", &SA5_access}, |
199 | }; | |
200 | ||
a58e7e53 WS |
201 | #define SCSI_CMD_BUSY ((struct scsi_cmnd *)&hpsa_cmd_busy) |
202 | static const struct scsi_cmnd hpsa_cmd_busy; | |
203 | #define SCSI_CMD_IDLE ((struct scsi_cmnd *)&hpsa_cmd_idle) | |
204 | static const struct scsi_cmnd hpsa_cmd_idle; | |
edd16368 SC |
205 | static int number_of_controllers; |
206 | ||
10f66018 SC |
207 | static irqreturn_t do_hpsa_intr_intx(int irq, void *dev_id); |
208 | static irqreturn_t do_hpsa_intr_msi(int irq, void *dev_id); | |
42a91641 | 209 | static int hpsa_ioctl(struct scsi_device *dev, int cmd, void __user *arg); |
edd16368 SC |
210 | |
211 | #ifdef CONFIG_COMPAT | |
42a91641 DB |
212 | static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, |
213 | void __user *arg); | |
edd16368 SC |
214 | #endif |
215 | ||
216 | static void cmd_free(struct ctlr_info *h, struct CommandList *c); | |
edd16368 | 217 | static struct CommandList *cmd_alloc(struct ctlr_info *h); |
73153fe5 WS |
218 | static void cmd_tagged_free(struct ctlr_info *h, struct CommandList *c); |
219 | static struct CommandList *cmd_tagged_alloc(struct ctlr_info *h, | |
220 | struct scsi_cmnd *scmd); | |
a2dac136 | 221 | static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h, |
b7bb24eb | 222 | void *buff, size_t size, u16 page_code, unsigned char *scsi3addr, |
edd16368 | 223 | int cmd_type); |
2c143342 | 224 | static void hpsa_free_cmd_pool(struct ctlr_info *h); |
b7bb24eb | 225 | #define VPD_PAGE (1 << 8) |
edd16368 | 226 | |
f281233d | 227 | static int hpsa_scsi_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd); |
a08a8471 SC |
228 | static void hpsa_scan_start(struct Scsi_Host *); |
229 | static int hpsa_scan_finished(struct Scsi_Host *sh, | |
230 | unsigned long elapsed_time); | |
7c0a0229 | 231 | static int hpsa_change_queue_depth(struct scsi_device *sdev, int qdepth); |
edd16368 SC |
232 | |
233 | static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd); | |
75167d2c | 234 | static int hpsa_eh_abort_handler(struct scsi_cmnd *scsicmd); |
edd16368 | 235 | static int hpsa_slave_alloc(struct scsi_device *sdev); |
41ce4c35 | 236 | static int hpsa_slave_configure(struct scsi_device *sdev); |
edd16368 SC |
237 | static void hpsa_slave_destroy(struct scsi_device *sdev); |
238 | ||
edd16368 | 239 | static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno); |
edd16368 SC |
240 | static int check_for_unit_attention(struct ctlr_info *h, |
241 | struct CommandList *c); | |
242 | static void check_ioctl_unit_attention(struct ctlr_info *h, | |
243 | struct CommandList *c); | |
303932fd DB |
244 | /* performant mode helper functions */ |
245 | static void calc_bucket_map(int *bucket, int num_buckets, | |
2b08b3e9 | 246 | int nsgs, int min_blocks, u32 *bucket_map); |
105a3dbc RE |
247 | static void hpsa_free_performant_mode(struct ctlr_info *h); |
248 | static int hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h); | |
254f796b | 249 | static inline u32 next_command(struct ctlr_info *h, u8 q); |
6f039790 GKH |
250 | static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr, |
251 | u32 *cfg_base_addr, u64 *cfg_base_addr_index, | |
252 | u64 *cfg_offset); | |
253 | static int hpsa_pci_find_memory_BAR(struct pci_dev *pdev, | |
254 | unsigned long *memory_bar); | |
255 | static int hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id); | |
256 | static int hpsa_wait_for_board_state(struct pci_dev *pdev, void __iomem *vaddr, | |
257 | int wait_for_ready); | |
75167d2c | 258 | static inline void finish_cmd(struct CommandList *c); |
c706a795 | 259 | static int hpsa_wait_for_mode_change_ack(struct ctlr_info *h); |
fe5389c8 SC |
260 | #define BOARD_NOT_READY 0 |
261 | #define BOARD_READY 1 | |
23100dd9 | 262 | static void hpsa_drain_accel_commands(struct ctlr_info *h); |
76438d08 | 263 | static void hpsa_flush_cache(struct ctlr_info *h); |
c349775e ST |
264 | static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h, |
265 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, | |
03383736 | 266 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk); |
080ef1cc | 267 | static void hpsa_command_resubmit_worker(struct work_struct *work); |
25163bd5 WS |
268 | static u32 lockup_detected(struct ctlr_info *h); |
269 | static int detect_controller_lockup(struct ctlr_info *h); | |
edd16368 | 270 | |
edd16368 SC |
271 | static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev) |
272 | { | |
273 | unsigned long *priv = shost_priv(sdev->host); | |
274 | return (struct ctlr_info *) *priv; | |
275 | } | |
276 | ||
a23513e8 SC |
277 | static inline struct ctlr_info *shost_to_hba(struct Scsi_Host *sh) |
278 | { | |
279 | unsigned long *priv = shost_priv(sh); | |
280 | return (struct ctlr_info *) *priv; | |
281 | } | |
282 | ||
a58e7e53 WS |
283 | static inline bool hpsa_is_cmd_idle(struct CommandList *c) |
284 | { | |
285 | return c->scsi_cmd == SCSI_CMD_IDLE; | |
286 | } | |
287 | ||
d604f533 WS |
288 | static inline bool hpsa_is_pending_event(struct CommandList *c) |
289 | { | |
290 | return c->abort_pending || c->reset_pending; | |
291 | } | |
292 | ||
9437ac43 SC |
293 | /* extract sense key, asc, and ascq from sense data. -1 means invalid. */ |
294 | static void decode_sense_data(const u8 *sense_data, int sense_data_len, | |
295 | u8 *sense_key, u8 *asc, u8 *ascq) | |
296 | { | |
297 | struct scsi_sense_hdr sshdr; | |
298 | bool rc; | |
299 | ||
300 | *sense_key = -1; | |
301 | *asc = -1; | |
302 | *ascq = -1; | |
303 | ||
304 | if (sense_data_len < 1) | |
305 | return; | |
306 | ||
307 | rc = scsi_normalize_sense(sense_data, sense_data_len, &sshdr); | |
308 | if (rc) { | |
309 | *sense_key = sshdr.sense_key; | |
310 | *asc = sshdr.asc; | |
311 | *ascq = sshdr.ascq; | |
312 | } | |
313 | } | |
314 | ||
edd16368 SC |
315 | static int check_for_unit_attention(struct ctlr_info *h, |
316 | struct CommandList *c) | |
317 | { | |
9437ac43 SC |
318 | u8 sense_key, asc, ascq; |
319 | int sense_len; | |
320 | ||
321 | if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo)) | |
322 | sense_len = sizeof(c->err_info->SenseInfo); | |
323 | else | |
324 | sense_len = c->err_info->SenseLen; | |
325 | ||
326 | decode_sense_data(c->err_info->SenseInfo, sense_len, | |
327 | &sense_key, &asc, &ascq); | |
81c27557 | 328 | if (sense_key != UNIT_ATTENTION || asc == 0xff) |
edd16368 SC |
329 | return 0; |
330 | ||
9437ac43 | 331 | switch (asc) { |
edd16368 | 332 | case STATE_CHANGED: |
9437ac43 | 333 | dev_warn(&h->pdev->dev, |
2946e82b RE |
334 | "%s: a state change detected, command retried\n", |
335 | h->devname); | |
edd16368 SC |
336 | break; |
337 | case LUN_FAILED: | |
7f73695a | 338 | dev_warn(&h->pdev->dev, |
2946e82b | 339 | "%s: LUN failure detected\n", h->devname); |
edd16368 SC |
340 | break; |
341 | case REPORT_LUNS_CHANGED: | |
7f73695a | 342 | dev_warn(&h->pdev->dev, |
2946e82b | 343 | "%s: report LUN data changed\n", h->devname); |
edd16368 | 344 | /* |
4f4eb9f1 ST |
345 | * Note: this REPORT_LUNS_CHANGED condition only occurs on the external |
346 | * target (array) devices. | |
edd16368 SC |
347 | */ |
348 | break; | |
349 | case POWER_OR_RESET: | |
2946e82b RE |
350 | dev_warn(&h->pdev->dev, |
351 | "%s: a power on or device reset detected\n", | |
352 | h->devname); | |
edd16368 SC |
353 | break; |
354 | case UNIT_ATTENTION_CLEARED: | |
2946e82b RE |
355 | dev_warn(&h->pdev->dev, |
356 | "%s: unit attention cleared by another initiator\n", | |
357 | h->devname); | |
edd16368 SC |
358 | break; |
359 | default: | |
2946e82b RE |
360 | dev_warn(&h->pdev->dev, |
361 | "%s: unknown unit attention detected\n", | |
362 | h->devname); | |
edd16368 SC |
363 | break; |
364 | } | |
365 | return 1; | |
366 | } | |
367 | ||
852af20a MB |
368 | static int check_for_busy(struct ctlr_info *h, struct CommandList *c) |
369 | { | |
370 | if (c->err_info->CommandStatus != CMD_TARGET_STATUS || | |
371 | (c->err_info->ScsiStatus != SAM_STAT_BUSY && | |
372 | c->err_info->ScsiStatus != SAM_STAT_TASK_SET_FULL)) | |
373 | return 0; | |
374 | dev_warn(&h->pdev->dev, HPSA "device busy"); | |
375 | return 1; | |
376 | } | |
377 | ||
e985c58f SC |
378 | static u32 lockup_detected(struct ctlr_info *h); |
379 | static ssize_t host_show_lockup_detected(struct device *dev, | |
380 | struct device_attribute *attr, char *buf) | |
381 | { | |
382 | int ld; | |
383 | struct ctlr_info *h; | |
384 | struct Scsi_Host *shost = class_to_shost(dev); | |
385 | ||
386 | h = shost_to_hba(shost); | |
387 | ld = lockup_detected(h); | |
388 | ||
389 | return sprintf(buf, "ld=%d\n", ld); | |
390 | } | |
391 | ||
da0697bd ST |
392 | static ssize_t host_store_hp_ssd_smart_path_status(struct device *dev, |
393 | struct device_attribute *attr, | |
394 | const char *buf, size_t count) | |
395 | { | |
396 | int status, len; | |
397 | struct ctlr_info *h; | |
398 | struct Scsi_Host *shost = class_to_shost(dev); | |
399 | char tmpbuf[10]; | |
400 | ||
401 | if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) | |
402 | return -EACCES; | |
403 | len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count; | |
404 | strncpy(tmpbuf, buf, len); | |
405 | tmpbuf[len] = '\0'; | |
406 | if (sscanf(tmpbuf, "%d", &status) != 1) | |
407 | return -EINVAL; | |
408 | h = shost_to_hba(shost); | |
409 | h->acciopath_status = !!status; | |
410 | dev_warn(&h->pdev->dev, | |
411 | "hpsa: HP SSD Smart Path %s via sysfs update.\n", | |
412 | h->acciopath_status ? "enabled" : "disabled"); | |
413 | return count; | |
414 | } | |
415 | ||
2ba8bfc8 SC |
416 | static ssize_t host_store_raid_offload_debug(struct device *dev, |
417 | struct device_attribute *attr, | |
418 | const char *buf, size_t count) | |
419 | { | |
420 | int debug_level, len; | |
421 | struct ctlr_info *h; | |
422 | struct Scsi_Host *shost = class_to_shost(dev); | |
423 | char tmpbuf[10]; | |
424 | ||
425 | if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) | |
426 | return -EACCES; | |
427 | len = count > sizeof(tmpbuf) - 1 ? sizeof(tmpbuf) - 1 : count; | |
428 | strncpy(tmpbuf, buf, len); | |
429 | tmpbuf[len] = '\0'; | |
430 | if (sscanf(tmpbuf, "%d", &debug_level) != 1) | |
431 | return -EINVAL; | |
432 | if (debug_level < 0) | |
433 | debug_level = 0; | |
434 | h = shost_to_hba(shost); | |
435 | h->raid_offload_debug = debug_level; | |
436 | dev_warn(&h->pdev->dev, "hpsa: Set raid_offload_debug level = %d\n", | |
437 | h->raid_offload_debug); | |
438 | return count; | |
439 | } | |
440 | ||
edd16368 SC |
441 | static ssize_t host_store_rescan(struct device *dev, |
442 | struct device_attribute *attr, | |
443 | const char *buf, size_t count) | |
444 | { | |
445 | struct ctlr_info *h; | |
446 | struct Scsi_Host *shost = class_to_shost(dev); | |
a23513e8 | 447 | h = shost_to_hba(shost); |
31468401 | 448 | hpsa_scan_start(h->scsi_host); |
edd16368 SC |
449 | return count; |
450 | } | |
451 | ||
d28ce020 SC |
452 | static ssize_t host_show_firmware_revision(struct device *dev, |
453 | struct device_attribute *attr, char *buf) | |
454 | { | |
455 | struct ctlr_info *h; | |
456 | struct Scsi_Host *shost = class_to_shost(dev); | |
457 | unsigned char *fwrev; | |
458 | ||
459 | h = shost_to_hba(shost); | |
460 | if (!h->hba_inquiry_data) | |
461 | return 0; | |
462 | fwrev = &h->hba_inquiry_data[32]; | |
463 | return snprintf(buf, 20, "%c%c%c%c\n", | |
464 | fwrev[0], fwrev[1], fwrev[2], fwrev[3]); | |
465 | } | |
466 | ||
94a13649 SC |
467 | static ssize_t host_show_commands_outstanding(struct device *dev, |
468 | struct device_attribute *attr, char *buf) | |
469 | { | |
470 | struct Scsi_Host *shost = class_to_shost(dev); | |
471 | struct ctlr_info *h = shost_to_hba(shost); | |
472 | ||
0cbf768e SC |
473 | return snprintf(buf, 20, "%d\n", |
474 | atomic_read(&h->commands_outstanding)); | |
94a13649 SC |
475 | } |
476 | ||
745a7a25 SC |
477 | static ssize_t host_show_transport_mode(struct device *dev, |
478 | struct device_attribute *attr, char *buf) | |
479 | { | |
480 | struct ctlr_info *h; | |
481 | struct Scsi_Host *shost = class_to_shost(dev); | |
482 | ||
483 | h = shost_to_hba(shost); | |
484 | return snprintf(buf, 20, "%s\n", | |
960a30e7 | 485 | h->transMethod & CFGTBL_Trans_Performant ? |
745a7a25 SC |
486 | "performant" : "simple"); |
487 | } | |
488 | ||
da0697bd ST |
489 | static ssize_t host_show_hp_ssd_smart_path_status(struct device *dev, |
490 | struct device_attribute *attr, char *buf) | |
491 | { | |
492 | struct ctlr_info *h; | |
493 | struct Scsi_Host *shost = class_to_shost(dev); | |
494 | ||
495 | h = shost_to_hba(shost); | |
496 | return snprintf(buf, 30, "HP SSD Smart Path %s\n", | |
497 | (h->acciopath_status == 1) ? "enabled" : "disabled"); | |
498 | } | |
499 | ||
46380786 | 500 | /* List of controllers which cannot be hard reset on kexec with reset_devices */ |
941b1cda SC |
501 | static u32 unresettable_controller[] = { |
502 | 0x324a103C, /* Smart Array P712m */ | |
9b5c48c2 | 503 | 0x324b103C, /* Smart Array P711m */ |
941b1cda SC |
504 | 0x3223103C, /* Smart Array P800 */ |
505 | 0x3234103C, /* Smart Array P400 */ | |
506 | 0x3235103C, /* Smart Array P400i */ | |
507 | 0x3211103C, /* Smart Array E200i */ | |
508 | 0x3212103C, /* Smart Array E200 */ | |
509 | 0x3213103C, /* Smart Array E200i */ | |
510 | 0x3214103C, /* Smart Array E200i */ | |
511 | 0x3215103C, /* Smart Array E200i */ | |
512 | 0x3237103C, /* Smart Array E500 */ | |
513 | 0x323D103C, /* Smart Array P700m */ | |
7af0abbc | 514 | 0x40800E11, /* Smart Array 5i */ |
941b1cda SC |
515 | 0x409C0E11, /* Smart Array 6400 */ |
516 | 0x409D0E11, /* Smart Array 6400 EM */ | |
5a4f934e TH |
517 | 0x40700E11, /* Smart Array 5300 */ |
518 | 0x40820E11, /* Smart Array 532 */ | |
519 | 0x40830E11, /* Smart Array 5312 */ | |
520 | 0x409A0E11, /* Smart Array 641 */ | |
521 | 0x409B0E11, /* Smart Array 642 */ | |
522 | 0x40910E11, /* Smart Array 6i */ | |
941b1cda SC |
523 | }; |
524 | ||
46380786 SC |
525 | /* List of controllers which cannot even be soft reset */ |
526 | static u32 soft_unresettable_controller[] = { | |
7af0abbc | 527 | 0x40800E11, /* Smart Array 5i */ |
5a4f934e TH |
528 | 0x40700E11, /* Smart Array 5300 */ |
529 | 0x40820E11, /* Smart Array 532 */ | |
530 | 0x40830E11, /* Smart Array 5312 */ | |
531 | 0x409A0E11, /* Smart Array 641 */ | |
532 | 0x409B0E11, /* Smart Array 642 */ | |
533 | 0x40910E11, /* Smart Array 6i */ | |
46380786 SC |
534 | /* Exclude 640x boards. These are two pci devices in one slot |
535 | * which share a battery backed cache module. One controls the | |
536 | * cache, the other accesses the cache through the one that controls | |
537 | * it. If we reset the one controlling the cache, the other will | |
538 | * likely not be happy. Just forbid resetting this conjoined mess. | |
539 | * The 640x isn't really supported by hpsa anyway. | |
540 | */ | |
541 | 0x409C0E11, /* Smart Array 6400 */ | |
542 | 0x409D0E11, /* Smart Array 6400 EM */ | |
543 | }; | |
544 | ||
9b5c48c2 SC |
545 | static u32 needs_abort_tags_swizzled[] = { |
546 | 0x323D103C, /* Smart Array P700m */ | |
547 | 0x324a103C, /* Smart Array P712m */ | |
548 | 0x324b103C, /* SmartArray P711m */ | |
549 | }; | |
550 | ||
551 | static int board_id_in_array(u32 a[], int nelems, u32 board_id) | |
941b1cda SC |
552 | { |
553 | int i; | |
554 | ||
9b5c48c2 SC |
555 | for (i = 0; i < nelems; i++) |
556 | if (a[i] == board_id) | |
557 | return 1; | |
558 | return 0; | |
46380786 SC |
559 | } |
560 | ||
9b5c48c2 | 561 | static int ctlr_is_hard_resettable(u32 board_id) |
46380786 | 562 | { |
9b5c48c2 SC |
563 | return !board_id_in_array(unresettable_controller, |
564 | ARRAY_SIZE(unresettable_controller), board_id); | |
565 | } | |
46380786 | 566 | |
9b5c48c2 SC |
567 | static int ctlr_is_soft_resettable(u32 board_id) |
568 | { | |
569 | return !board_id_in_array(soft_unresettable_controller, | |
570 | ARRAY_SIZE(soft_unresettable_controller), board_id); | |
941b1cda SC |
571 | } |
572 | ||
46380786 SC |
573 | static int ctlr_is_resettable(u32 board_id) |
574 | { | |
575 | return ctlr_is_hard_resettable(board_id) || | |
576 | ctlr_is_soft_resettable(board_id); | |
577 | } | |
578 | ||
9b5c48c2 SC |
579 | static int ctlr_needs_abort_tags_swizzled(u32 board_id) |
580 | { | |
581 | return board_id_in_array(needs_abort_tags_swizzled, | |
582 | ARRAY_SIZE(needs_abort_tags_swizzled), board_id); | |
583 | } | |
584 | ||
941b1cda SC |
585 | static ssize_t host_show_resettable(struct device *dev, |
586 | struct device_attribute *attr, char *buf) | |
587 | { | |
588 | struct ctlr_info *h; | |
589 | struct Scsi_Host *shost = class_to_shost(dev); | |
590 | ||
591 | h = shost_to_hba(shost); | |
46380786 | 592 | return snprintf(buf, 20, "%d\n", ctlr_is_resettable(h->board_id)); |
941b1cda SC |
593 | } |
594 | ||
edd16368 SC |
595 | static inline int is_logical_dev_addr_mode(unsigned char scsi3addr[]) |
596 | { | |
597 | return (scsi3addr[3] & 0xC0) == 0x40; | |
598 | } | |
599 | ||
f2ef0ce7 RE |
600 | static const char * const raid_label[] = { "0", "4", "1(+0)", "5", "5+1", "6", |
601 | "1(+0)ADM", "UNKNOWN" | |
edd16368 | 602 | }; |
6b80b18f ST |
603 | #define HPSA_RAID_0 0 |
604 | #define HPSA_RAID_4 1 | |
605 | #define HPSA_RAID_1 2 /* also used for RAID 10 */ | |
606 | #define HPSA_RAID_5 3 /* also used for RAID 50 */ | |
607 | #define HPSA_RAID_51 4 | |
608 | #define HPSA_RAID_6 5 /* also used for RAID 60 */ | |
609 | #define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */ | |
edd16368 SC |
610 | #define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 1) |
611 | ||
612 | static ssize_t raid_level_show(struct device *dev, | |
613 | struct device_attribute *attr, char *buf) | |
614 | { | |
615 | ssize_t l = 0; | |
82a72c0a | 616 | unsigned char rlevel; |
edd16368 SC |
617 | struct ctlr_info *h; |
618 | struct scsi_device *sdev; | |
619 | struct hpsa_scsi_dev_t *hdev; | |
620 | unsigned long flags; | |
621 | ||
622 | sdev = to_scsi_device(dev); | |
623 | h = sdev_to_hba(sdev); | |
624 | spin_lock_irqsave(&h->lock, flags); | |
625 | hdev = sdev->hostdata; | |
626 | if (!hdev) { | |
627 | spin_unlock_irqrestore(&h->lock, flags); | |
628 | return -ENODEV; | |
629 | } | |
630 | ||
631 | /* Is this even a logical drive? */ | |
632 | if (!is_logical_dev_addr_mode(hdev->scsi3addr)) { | |
633 | spin_unlock_irqrestore(&h->lock, flags); | |
634 | l = snprintf(buf, PAGE_SIZE, "N/A\n"); | |
635 | return l; | |
636 | } | |
637 | ||
638 | rlevel = hdev->raid_level; | |
639 | spin_unlock_irqrestore(&h->lock, flags); | |
82a72c0a | 640 | if (rlevel > RAID_UNKNOWN) |
edd16368 SC |
641 | rlevel = RAID_UNKNOWN; |
642 | l = snprintf(buf, PAGE_SIZE, "RAID %s\n", raid_label[rlevel]); | |
643 | return l; | |
644 | } | |
645 | ||
646 | static ssize_t lunid_show(struct device *dev, | |
647 | struct device_attribute *attr, char *buf) | |
648 | { | |
649 | struct ctlr_info *h; | |
650 | struct scsi_device *sdev; | |
651 | struct hpsa_scsi_dev_t *hdev; | |
652 | unsigned long flags; | |
653 | unsigned char lunid[8]; | |
654 | ||
655 | sdev = to_scsi_device(dev); | |
656 | h = sdev_to_hba(sdev); | |
657 | spin_lock_irqsave(&h->lock, flags); | |
658 | hdev = sdev->hostdata; | |
659 | if (!hdev) { | |
660 | spin_unlock_irqrestore(&h->lock, flags); | |
661 | return -ENODEV; | |
662 | } | |
663 | memcpy(lunid, hdev->scsi3addr, sizeof(lunid)); | |
664 | spin_unlock_irqrestore(&h->lock, flags); | |
665 | return snprintf(buf, 20, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
666 | lunid[0], lunid[1], lunid[2], lunid[3], | |
667 | lunid[4], lunid[5], lunid[6], lunid[7]); | |
668 | } | |
669 | ||
670 | static ssize_t unique_id_show(struct device *dev, | |
671 | struct device_attribute *attr, char *buf) | |
672 | { | |
673 | struct ctlr_info *h; | |
674 | struct scsi_device *sdev; | |
675 | struct hpsa_scsi_dev_t *hdev; | |
676 | unsigned long flags; | |
677 | unsigned char sn[16]; | |
678 | ||
679 | sdev = to_scsi_device(dev); | |
680 | h = sdev_to_hba(sdev); | |
681 | spin_lock_irqsave(&h->lock, flags); | |
682 | hdev = sdev->hostdata; | |
683 | if (!hdev) { | |
684 | spin_unlock_irqrestore(&h->lock, flags); | |
685 | return -ENODEV; | |
686 | } | |
687 | memcpy(sn, hdev->device_id, sizeof(sn)); | |
688 | spin_unlock_irqrestore(&h->lock, flags); | |
689 | return snprintf(buf, 16 * 2 + 2, | |
690 | "%02X%02X%02X%02X%02X%02X%02X%02X" | |
691 | "%02X%02X%02X%02X%02X%02X%02X%02X\n", | |
692 | sn[0], sn[1], sn[2], sn[3], | |
693 | sn[4], sn[5], sn[6], sn[7], | |
694 | sn[8], sn[9], sn[10], sn[11], | |
695 | sn[12], sn[13], sn[14], sn[15]); | |
696 | } | |
697 | ||
c1988684 ST |
698 | static ssize_t host_show_hp_ssd_smart_path_enabled(struct device *dev, |
699 | struct device_attribute *attr, char *buf) | |
700 | { | |
701 | struct ctlr_info *h; | |
702 | struct scsi_device *sdev; | |
703 | struct hpsa_scsi_dev_t *hdev; | |
704 | unsigned long flags; | |
705 | int offload_enabled; | |
706 | ||
707 | sdev = to_scsi_device(dev); | |
708 | h = sdev_to_hba(sdev); | |
709 | spin_lock_irqsave(&h->lock, flags); | |
710 | hdev = sdev->hostdata; | |
711 | if (!hdev) { | |
712 | spin_unlock_irqrestore(&h->lock, flags); | |
713 | return -ENODEV; | |
714 | } | |
715 | offload_enabled = hdev->offload_enabled; | |
716 | spin_unlock_irqrestore(&h->lock, flags); | |
717 | return snprintf(buf, 20, "%d\n", offload_enabled); | |
718 | } | |
719 | ||
3f5eac3a SC |
720 | static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL); |
721 | static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL); | |
722 | static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL); | |
723 | static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan); | |
c1988684 ST |
724 | static DEVICE_ATTR(hp_ssd_smart_path_enabled, S_IRUGO, |
725 | host_show_hp_ssd_smart_path_enabled, NULL); | |
da0697bd ST |
726 | static DEVICE_ATTR(hp_ssd_smart_path_status, S_IWUSR|S_IRUGO|S_IROTH, |
727 | host_show_hp_ssd_smart_path_status, | |
728 | host_store_hp_ssd_smart_path_status); | |
2ba8bfc8 SC |
729 | static DEVICE_ATTR(raid_offload_debug, S_IWUSR, NULL, |
730 | host_store_raid_offload_debug); | |
3f5eac3a SC |
731 | static DEVICE_ATTR(firmware_revision, S_IRUGO, |
732 | host_show_firmware_revision, NULL); | |
733 | static DEVICE_ATTR(commands_outstanding, S_IRUGO, | |
734 | host_show_commands_outstanding, NULL); | |
735 | static DEVICE_ATTR(transport_mode, S_IRUGO, | |
736 | host_show_transport_mode, NULL); | |
941b1cda SC |
737 | static DEVICE_ATTR(resettable, S_IRUGO, |
738 | host_show_resettable, NULL); | |
e985c58f SC |
739 | static DEVICE_ATTR(lockup_detected, S_IRUGO, |
740 | host_show_lockup_detected, NULL); | |
3f5eac3a SC |
741 | |
742 | static struct device_attribute *hpsa_sdev_attrs[] = { | |
743 | &dev_attr_raid_level, | |
744 | &dev_attr_lunid, | |
745 | &dev_attr_unique_id, | |
c1988684 | 746 | &dev_attr_hp_ssd_smart_path_enabled, |
e985c58f | 747 | &dev_attr_lockup_detected, |
3f5eac3a SC |
748 | NULL, |
749 | }; | |
750 | ||
751 | static struct device_attribute *hpsa_shost_attrs[] = { | |
752 | &dev_attr_rescan, | |
753 | &dev_attr_firmware_revision, | |
754 | &dev_attr_commands_outstanding, | |
755 | &dev_attr_transport_mode, | |
941b1cda | 756 | &dev_attr_resettable, |
da0697bd | 757 | &dev_attr_hp_ssd_smart_path_status, |
2ba8bfc8 | 758 | &dev_attr_raid_offload_debug, |
3f5eac3a SC |
759 | NULL, |
760 | }; | |
761 | ||
41ce4c35 SC |
762 | #define HPSA_NRESERVED_CMDS (HPSA_CMDS_RESERVED_FOR_ABORTS + \ |
763 | HPSA_CMDS_RESERVED_FOR_DRIVER + HPSA_MAX_CONCURRENT_PASSTHRUS) | |
764 | ||
3f5eac3a SC |
765 | static struct scsi_host_template hpsa_driver_template = { |
766 | .module = THIS_MODULE, | |
f79cfec6 SC |
767 | .name = HPSA, |
768 | .proc_name = HPSA, | |
3f5eac3a SC |
769 | .queuecommand = hpsa_scsi_queue_command, |
770 | .scan_start = hpsa_scan_start, | |
771 | .scan_finished = hpsa_scan_finished, | |
7c0a0229 | 772 | .change_queue_depth = hpsa_change_queue_depth, |
3f5eac3a SC |
773 | .this_id = -1, |
774 | .use_clustering = ENABLE_CLUSTERING, | |
75167d2c | 775 | .eh_abort_handler = hpsa_eh_abort_handler, |
3f5eac3a SC |
776 | .eh_device_reset_handler = hpsa_eh_device_reset_handler, |
777 | .ioctl = hpsa_ioctl, | |
778 | .slave_alloc = hpsa_slave_alloc, | |
41ce4c35 | 779 | .slave_configure = hpsa_slave_configure, |
3f5eac3a SC |
780 | .slave_destroy = hpsa_slave_destroy, |
781 | #ifdef CONFIG_COMPAT | |
782 | .compat_ioctl = hpsa_compat_ioctl, | |
783 | #endif | |
784 | .sdev_attrs = hpsa_sdev_attrs, | |
785 | .shost_attrs = hpsa_shost_attrs, | |
c0d6a4d1 | 786 | .max_sectors = 8192, |
54b2b50c | 787 | .no_write_same = 1, |
3f5eac3a SC |
788 | }; |
789 | ||
254f796b | 790 | static inline u32 next_command(struct ctlr_info *h, u8 q) |
3f5eac3a SC |
791 | { |
792 | u32 a; | |
072b0518 | 793 | struct reply_queue_buffer *rq = &h->reply_queue[q]; |
3f5eac3a | 794 | |
e1f7de0c MG |
795 | if (h->transMethod & CFGTBL_Trans_io_accel1) |
796 | return h->access.command_completed(h, q); | |
797 | ||
3f5eac3a | 798 | if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) |
254f796b | 799 | return h->access.command_completed(h, q); |
3f5eac3a | 800 | |
254f796b MG |
801 | if ((rq->head[rq->current_entry] & 1) == rq->wraparound) { |
802 | a = rq->head[rq->current_entry]; | |
803 | rq->current_entry++; | |
0cbf768e | 804 | atomic_dec(&h->commands_outstanding); |
3f5eac3a SC |
805 | } else { |
806 | a = FIFO_EMPTY; | |
807 | } | |
808 | /* Check for wraparound */ | |
254f796b MG |
809 | if (rq->current_entry == h->max_commands) { |
810 | rq->current_entry = 0; | |
811 | rq->wraparound ^= 1; | |
3f5eac3a SC |
812 | } |
813 | return a; | |
814 | } | |
815 | ||
c349775e ST |
816 | /* |
817 | * There are some special bits in the bus address of the | |
818 | * command that we have to set for the controller to know | |
819 | * how to process the command: | |
820 | * | |
821 | * Normal performant mode: | |
822 | * bit 0: 1 means performant mode, 0 means simple mode. | |
823 | * bits 1-3 = block fetch table entry | |
824 | * bits 4-6 = command type (== 0) | |
825 | * | |
826 | * ioaccel1 mode: | |
827 | * bit 0 = "performant mode" bit. | |
828 | * bits 1-3 = block fetch table entry | |
829 | * bits 4-6 = command type (== 110) | |
830 | * (command type is needed because ioaccel1 mode | |
831 | * commands are submitted through the same register as normal | |
832 | * mode commands, so this is how the controller knows whether | |
833 | * the command is normal mode or ioaccel1 mode.) | |
834 | * | |
835 | * ioaccel2 mode: | |
836 | * bit 0 = "performant mode" bit. | |
837 | * bits 1-4 = block fetch table entry (note extra bit) | |
838 | * bits 4-6 = not needed, because ioaccel2 mode has | |
839 | * a separate special register for submitting commands. | |
840 | */ | |
841 | ||
25163bd5 WS |
842 | /* |
843 | * set_performant_mode: Modify the tag for cciss performant | |
3f5eac3a SC |
844 | * set bit 0 for pull model, bits 3-1 for block fetch |
845 | * register number | |
846 | */ | |
25163bd5 WS |
847 | #define DEFAULT_REPLY_QUEUE (-1) |
848 | static void set_performant_mode(struct ctlr_info *h, struct CommandList *c, | |
849 | int reply_queue) | |
3f5eac3a | 850 | { |
254f796b | 851 | if (likely(h->transMethod & CFGTBL_Trans_Performant)) { |
3f5eac3a | 852 | c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1); |
25163bd5 WS |
853 | if (unlikely(!h->msix_vector)) |
854 | return; | |
855 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) | |
254f796b | 856 | c->Header.ReplyQueue = |
804a5cb5 | 857 | raw_smp_processor_id() % h->nreply_queues; |
25163bd5 WS |
858 | else |
859 | c->Header.ReplyQueue = reply_queue % h->nreply_queues; | |
254f796b | 860 | } |
3f5eac3a SC |
861 | } |
862 | ||
c349775e | 863 | static void set_ioaccel1_performant_mode(struct ctlr_info *h, |
25163bd5 WS |
864 | struct CommandList *c, |
865 | int reply_queue) | |
c349775e ST |
866 | { |
867 | struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex]; | |
868 | ||
25163bd5 WS |
869 | /* |
870 | * Tell the controller to post the reply to the queue for this | |
c349775e ST |
871 | * processor. This seems to give the best I/O throughput. |
872 | */ | |
25163bd5 WS |
873 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) |
874 | cp->ReplyQueue = smp_processor_id() % h->nreply_queues; | |
875 | else | |
876 | cp->ReplyQueue = reply_queue % h->nreply_queues; | |
877 | /* | |
878 | * Set the bits in the address sent down to include: | |
c349775e ST |
879 | * - performant mode bit (bit 0) |
880 | * - pull count (bits 1-3) | |
881 | * - command type (bits 4-6) | |
882 | */ | |
883 | c->busaddr |= 1 | (h->ioaccel1_blockFetchTable[c->Header.SGList] << 1) | | |
884 | IOACCEL1_BUSADDR_CMDTYPE; | |
885 | } | |
886 | ||
8be986cc SC |
887 | static void set_ioaccel2_tmf_performant_mode(struct ctlr_info *h, |
888 | struct CommandList *c, | |
889 | int reply_queue) | |
890 | { | |
891 | struct hpsa_tmf_struct *cp = (struct hpsa_tmf_struct *) | |
892 | &h->ioaccel2_cmd_pool[c->cmdindex]; | |
893 | ||
894 | /* Tell the controller to post the reply to the queue for this | |
895 | * processor. This seems to give the best I/O throughput. | |
896 | */ | |
897 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) | |
898 | cp->reply_queue = smp_processor_id() % h->nreply_queues; | |
899 | else | |
900 | cp->reply_queue = reply_queue % h->nreply_queues; | |
901 | /* Set the bits in the address sent down to include: | |
902 | * - performant mode bit not used in ioaccel mode 2 | |
903 | * - pull count (bits 0-3) | |
904 | * - command type isn't needed for ioaccel2 | |
905 | */ | |
906 | c->busaddr |= h->ioaccel2_blockFetchTable[0]; | |
907 | } | |
908 | ||
c349775e | 909 | static void set_ioaccel2_performant_mode(struct ctlr_info *h, |
25163bd5 WS |
910 | struct CommandList *c, |
911 | int reply_queue) | |
c349775e ST |
912 | { |
913 | struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
914 | ||
25163bd5 WS |
915 | /* |
916 | * Tell the controller to post the reply to the queue for this | |
c349775e ST |
917 | * processor. This seems to give the best I/O throughput. |
918 | */ | |
25163bd5 WS |
919 | if (likely(reply_queue == DEFAULT_REPLY_QUEUE)) |
920 | cp->reply_queue = smp_processor_id() % h->nreply_queues; | |
921 | else | |
922 | cp->reply_queue = reply_queue % h->nreply_queues; | |
923 | /* | |
924 | * Set the bits in the address sent down to include: | |
c349775e ST |
925 | * - performant mode bit not used in ioaccel mode 2 |
926 | * - pull count (bits 0-3) | |
927 | * - command type isn't needed for ioaccel2 | |
928 | */ | |
929 | c->busaddr |= (h->ioaccel2_blockFetchTable[cp->sg_count]); | |
930 | } | |
931 | ||
e85c5974 SC |
932 | static int is_firmware_flash_cmd(u8 *cdb) |
933 | { | |
934 | return cdb[0] == BMIC_WRITE && cdb[6] == BMIC_FLASH_FIRMWARE; | |
935 | } | |
936 | ||
937 | /* | |
938 | * During firmware flash, the heartbeat register may not update as frequently | |
939 | * as it should. So we dial down lockup detection during firmware flash. and | |
940 | * dial it back up when firmware flash completes. | |
941 | */ | |
942 | #define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ) | |
943 | #define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ) | |
944 | static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info *h, | |
945 | struct CommandList *c) | |
946 | { | |
947 | if (!is_firmware_flash_cmd(c->Request.CDB)) | |
948 | return; | |
949 | atomic_inc(&h->firmware_flash_in_progress); | |
950 | h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH; | |
951 | } | |
952 | ||
953 | static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info *h, | |
954 | struct CommandList *c) | |
955 | { | |
956 | if (is_firmware_flash_cmd(c->Request.CDB) && | |
957 | atomic_dec_and_test(&h->firmware_flash_in_progress)) | |
958 | h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL; | |
959 | } | |
960 | ||
25163bd5 WS |
961 | static void __enqueue_cmd_and_start_io(struct ctlr_info *h, |
962 | struct CommandList *c, int reply_queue) | |
3f5eac3a | 963 | { |
c05e8866 SC |
964 | dial_down_lockup_detection_during_fw_flash(h, c); |
965 | atomic_inc(&h->commands_outstanding); | |
c349775e ST |
966 | switch (c->cmd_type) { |
967 | case CMD_IOACCEL1: | |
25163bd5 | 968 | set_ioaccel1_performant_mode(h, c, reply_queue); |
c05e8866 | 969 | writel(c->busaddr, h->vaddr + SA5_REQUEST_PORT_OFFSET); |
c349775e ST |
970 | break; |
971 | case CMD_IOACCEL2: | |
25163bd5 | 972 | set_ioaccel2_performant_mode(h, c, reply_queue); |
c05e8866 | 973 | writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32); |
c349775e | 974 | break; |
8be986cc SC |
975 | case IOACCEL2_TMF: |
976 | set_ioaccel2_tmf_performant_mode(h, c, reply_queue); | |
977 | writel(c->busaddr, h->vaddr + IOACCEL2_INBOUND_POSTQ_32); | |
978 | break; | |
c349775e | 979 | default: |
25163bd5 | 980 | set_performant_mode(h, c, reply_queue); |
c05e8866 | 981 | h->access.submit_command(h, c); |
c349775e | 982 | } |
3f5eac3a SC |
983 | } |
984 | ||
a58e7e53 | 985 | static void enqueue_cmd_and_start_io(struct ctlr_info *h, struct CommandList *c) |
25163bd5 | 986 | { |
d604f533 | 987 | if (unlikely(hpsa_is_pending_event(c))) |
a58e7e53 WS |
988 | return finish_cmd(c); |
989 | ||
25163bd5 WS |
990 | __enqueue_cmd_and_start_io(h, c, DEFAULT_REPLY_QUEUE); |
991 | } | |
992 | ||
3f5eac3a SC |
993 | static inline int is_hba_lunid(unsigned char scsi3addr[]) |
994 | { | |
995 | return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0; | |
996 | } | |
997 | ||
998 | static inline int is_scsi_rev_5(struct ctlr_info *h) | |
999 | { | |
1000 | if (!h->hba_inquiry_data) | |
1001 | return 0; | |
1002 | if ((h->hba_inquiry_data[2] & 0x07) == 5) | |
1003 | return 1; | |
1004 | return 0; | |
1005 | } | |
1006 | ||
edd16368 SC |
1007 | static int hpsa_find_target_lun(struct ctlr_info *h, |
1008 | unsigned char scsi3addr[], int bus, int *target, int *lun) | |
1009 | { | |
1010 | /* finds an unused bus, target, lun for a new physical device | |
1011 | * assumes h->devlock is held | |
1012 | */ | |
1013 | int i, found = 0; | |
cfe5badc | 1014 | DECLARE_BITMAP(lun_taken, HPSA_MAX_DEVICES); |
edd16368 | 1015 | |
263d9401 | 1016 | bitmap_zero(lun_taken, HPSA_MAX_DEVICES); |
edd16368 SC |
1017 | |
1018 | for (i = 0; i < h->ndevices; i++) { | |
1019 | if (h->dev[i]->bus == bus && h->dev[i]->target != -1) | |
263d9401 | 1020 | __set_bit(h->dev[i]->target, lun_taken); |
edd16368 SC |
1021 | } |
1022 | ||
263d9401 AM |
1023 | i = find_first_zero_bit(lun_taken, HPSA_MAX_DEVICES); |
1024 | if (i < HPSA_MAX_DEVICES) { | |
1025 | /* *bus = 1; */ | |
1026 | *target = i; | |
1027 | *lun = 0; | |
1028 | found = 1; | |
edd16368 SC |
1029 | } |
1030 | return !found; | |
1031 | } | |
1032 | ||
0d96ef5f WS |
1033 | static inline void hpsa_show_dev_msg(const char *level, struct ctlr_info *h, |
1034 | struct hpsa_scsi_dev_t *dev, char *description) | |
1035 | { | |
1036 | dev_printk(level, &h->pdev->dev, | |
1037 | "scsi %d:%d:%d:%d: %s %s %.8s %.16s RAID-%s SSDSmartPathCap%c En%c Exp=%d\n", | |
1038 | h->scsi_host->host_no, dev->bus, dev->target, dev->lun, | |
1039 | description, | |
1040 | scsi_device_type(dev->devtype), | |
1041 | dev->vendor, | |
1042 | dev->model, | |
1043 | dev->raid_level > RAID_UNKNOWN ? | |
1044 | "RAID-?" : raid_label[dev->raid_level], | |
1045 | dev->offload_config ? '+' : '-', | |
1046 | dev->offload_enabled ? '+' : '-', | |
1047 | dev->expose_state); | |
1048 | } | |
1049 | ||
edd16368 SC |
1050 | /* Add an entry into h->dev[] array. */ |
1051 | static int hpsa_scsi_add_entry(struct ctlr_info *h, int hostno, | |
1052 | struct hpsa_scsi_dev_t *device, | |
1053 | struct hpsa_scsi_dev_t *added[], int *nadded) | |
1054 | { | |
1055 | /* assumes h->devlock is held */ | |
1056 | int n = h->ndevices; | |
1057 | int i; | |
1058 | unsigned char addr1[8], addr2[8]; | |
1059 | struct hpsa_scsi_dev_t *sd; | |
1060 | ||
cfe5badc | 1061 | if (n >= HPSA_MAX_DEVICES) { |
edd16368 SC |
1062 | dev_err(&h->pdev->dev, "too many devices, some will be " |
1063 | "inaccessible.\n"); | |
1064 | return -1; | |
1065 | } | |
1066 | ||
1067 | /* physical devices do not have lun or target assigned until now. */ | |
1068 | if (device->lun != -1) | |
1069 | /* Logical device, lun is already assigned. */ | |
1070 | goto lun_assigned; | |
1071 | ||
1072 | /* If this device a non-zero lun of a multi-lun device | |
1073 | * byte 4 of the 8-byte LUN addr will contain the logical | |
2b08b3e9 | 1074 | * unit no, zero otherwise. |
edd16368 SC |
1075 | */ |
1076 | if (device->scsi3addr[4] == 0) { | |
1077 | /* This is not a non-zero lun of a multi-lun device */ | |
1078 | if (hpsa_find_target_lun(h, device->scsi3addr, | |
1079 | device->bus, &device->target, &device->lun) != 0) | |
1080 | return -1; | |
1081 | goto lun_assigned; | |
1082 | } | |
1083 | ||
1084 | /* This is a non-zero lun of a multi-lun device. | |
1085 | * Search through our list and find the device which | |
1086 | * has the same 8 byte LUN address, excepting byte 4. | |
1087 | * Assign the same bus and target for this new LUN. | |
1088 | * Use the logical unit number from the firmware. | |
1089 | */ | |
1090 | memcpy(addr1, device->scsi3addr, 8); | |
1091 | addr1[4] = 0; | |
1092 | for (i = 0; i < n; i++) { | |
1093 | sd = h->dev[i]; | |
1094 | memcpy(addr2, sd->scsi3addr, 8); | |
1095 | addr2[4] = 0; | |
1096 | /* differ only in byte 4? */ | |
1097 | if (memcmp(addr1, addr2, 8) == 0) { | |
1098 | device->bus = sd->bus; | |
1099 | device->target = sd->target; | |
1100 | device->lun = device->scsi3addr[4]; | |
1101 | break; | |
1102 | } | |
1103 | } | |
1104 | if (device->lun == -1) { | |
1105 | dev_warn(&h->pdev->dev, "physical device with no LUN=0," | |
1106 | " suspect firmware bug or unsupported hardware " | |
1107 | "configuration.\n"); | |
1108 | return -1; | |
1109 | } | |
1110 | ||
1111 | lun_assigned: | |
1112 | ||
1113 | h->dev[n] = device; | |
1114 | h->ndevices++; | |
1115 | added[*nadded] = device; | |
1116 | (*nadded)++; | |
0d96ef5f WS |
1117 | hpsa_show_dev_msg(KERN_INFO, h, device, |
1118 | device->expose_state & HPSA_SCSI_ADD ? "added" : "masked"); | |
a473d86c RE |
1119 | device->offload_to_be_enabled = device->offload_enabled; |
1120 | device->offload_enabled = 0; | |
edd16368 SC |
1121 | return 0; |
1122 | } | |
1123 | ||
bd9244f7 ST |
1124 | /* Update an entry in h->dev[] array. */ |
1125 | static void hpsa_scsi_update_entry(struct ctlr_info *h, int hostno, | |
1126 | int entry, struct hpsa_scsi_dev_t *new_entry) | |
1127 | { | |
a473d86c | 1128 | int offload_enabled; |
bd9244f7 ST |
1129 | /* assumes h->devlock is held */ |
1130 | BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); | |
1131 | ||
1132 | /* Raid level changed. */ | |
1133 | h->dev[entry]->raid_level = new_entry->raid_level; | |
250fb125 | 1134 | |
03383736 DB |
1135 | /* Raid offload parameters changed. Careful about the ordering. */ |
1136 | if (new_entry->offload_config && new_entry->offload_enabled) { | |
1137 | /* | |
1138 | * if drive is newly offload_enabled, we want to copy the | |
1139 | * raid map data first. If previously offload_enabled and | |
1140 | * offload_config were set, raid map data had better be | |
1141 | * the same as it was before. if raid map data is changed | |
1142 | * then it had better be the case that | |
1143 | * h->dev[entry]->offload_enabled is currently 0. | |
1144 | */ | |
1145 | h->dev[entry]->raid_map = new_entry->raid_map; | |
1146 | h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle; | |
03383736 | 1147 | } |
a3144e0b JH |
1148 | if (new_entry->hba_ioaccel_enabled) { |
1149 | h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle; | |
1150 | wmb(); /* set ioaccel_handle *before* hba_ioaccel_enabled */ | |
1151 | } | |
1152 | h->dev[entry]->hba_ioaccel_enabled = new_entry->hba_ioaccel_enabled; | |
250fb125 | 1153 | h->dev[entry]->offload_config = new_entry->offload_config; |
9fb0de2d | 1154 | h->dev[entry]->offload_to_mirror = new_entry->offload_to_mirror; |
03383736 | 1155 | h->dev[entry]->queue_depth = new_entry->queue_depth; |
250fb125 | 1156 | |
41ce4c35 SC |
1157 | /* |
1158 | * We can turn off ioaccel offload now, but need to delay turning | |
1159 | * it on until we can update h->dev[entry]->phys_disk[], but we | |
1160 | * can't do that until all the devices are updated. | |
1161 | */ | |
1162 | h->dev[entry]->offload_to_be_enabled = new_entry->offload_enabled; | |
1163 | if (!new_entry->offload_enabled) | |
1164 | h->dev[entry]->offload_enabled = 0; | |
1165 | ||
a473d86c RE |
1166 | offload_enabled = h->dev[entry]->offload_enabled; |
1167 | h->dev[entry]->offload_enabled = h->dev[entry]->offload_to_be_enabled; | |
0d96ef5f | 1168 | hpsa_show_dev_msg(KERN_INFO, h, h->dev[entry], "updated"); |
a473d86c | 1169 | h->dev[entry]->offload_enabled = offload_enabled; |
bd9244f7 ST |
1170 | } |
1171 | ||
2a8ccf31 SC |
1172 | /* Replace an entry from h->dev[] array. */ |
1173 | static void hpsa_scsi_replace_entry(struct ctlr_info *h, int hostno, | |
1174 | int entry, struct hpsa_scsi_dev_t *new_entry, | |
1175 | struct hpsa_scsi_dev_t *added[], int *nadded, | |
1176 | struct hpsa_scsi_dev_t *removed[], int *nremoved) | |
1177 | { | |
1178 | /* assumes h->devlock is held */ | |
cfe5badc | 1179 | BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); |
2a8ccf31 SC |
1180 | removed[*nremoved] = h->dev[entry]; |
1181 | (*nremoved)++; | |
01350d05 SC |
1182 | |
1183 | /* | |
1184 | * New physical devices won't have target/lun assigned yet | |
1185 | * so we need to preserve the values in the slot we are replacing. | |
1186 | */ | |
1187 | if (new_entry->target == -1) { | |
1188 | new_entry->target = h->dev[entry]->target; | |
1189 | new_entry->lun = h->dev[entry]->lun; | |
1190 | } | |
1191 | ||
2a8ccf31 SC |
1192 | h->dev[entry] = new_entry; |
1193 | added[*nadded] = new_entry; | |
1194 | (*nadded)++; | |
0d96ef5f | 1195 | hpsa_show_dev_msg(KERN_INFO, h, new_entry, "replaced"); |
a473d86c RE |
1196 | new_entry->offload_to_be_enabled = new_entry->offload_enabled; |
1197 | new_entry->offload_enabled = 0; | |
2a8ccf31 SC |
1198 | } |
1199 | ||
edd16368 SC |
1200 | /* Remove an entry from h->dev[] array. */ |
1201 | static void hpsa_scsi_remove_entry(struct ctlr_info *h, int hostno, int entry, | |
1202 | struct hpsa_scsi_dev_t *removed[], int *nremoved) | |
1203 | { | |
1204 | /* assumes h->devlock is held */ | |
1205 | int i; | |
1206 | struct hpsa_scsi_dev_t *sd; | |
1207 | ||
cfe5badc | 1208 | BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); |
edd16368 SC |
1209 | |
1210 | sd = h->dev[entry]; | |
1211 | removed[*nremoved] = h->dev[entry]; | |
1212 | (*nremoved)++; | |
1213 | ||
1214 | for (i = entry; i < h->ndevices-1; i++) | |
1215 | h->dev[i] = h->dev[i+1]; | |
1216 | h->ndevices--; | |
0d96ef5f | 1217 | hpsa_show_dev_msg(KERN_INFO, h, sd, "removed"); |
edd16368 SC |
1218 | } |
1219 | ||
1220 | #define SCSI3ADDR_EQ(a, b) ( \ | |
1221 | (a)[7] == (b)[7] && \ | |
1222 | (a)[6] == (b)[6] && \ | |
1223 | (a)[5] == (b)[5] && \ | |
1224 | (a)[4] == (b)[4] && \ | |
1225 | (a)[3] == (b)[3] && \ | |
1226 | (a)[2] == (b)[2] && \ | |
1227 | (a)[1] == (b)[1] && \ | |
1228 | (a)[0] == (b)[0]) | |
1229 | ||
1230 | static void fixup_botched_add(struct ctlr_info *h, | |
1231 | struct hpsa_scsi_dev_t *added) | |
1232 | { | |
1233 | /* called when scsi_add_device fails in order to re-adjust | |
1234 | * h->dev[] to match the mid layer's view. | |
1235 | */ | |
1236 | unsigned long flags; | |
1237 | int i, j; | |
1238 | ||
1239 | spin_lock_irqsave(&h->lock, flags); | |
1240 | for (i = 0; i < h->ndevices; i++) { | |
1241 | if (h->dev[i] == added) { | |
1242 | for (j = i; j < h->ndevices-1; j++) | |
1243 | h->dev[j] = h->dev[j+1]; | |
1244 | h->ndevices--; | |
1245 | break; | |
1246 | } | |
1247 | } | |
1248 | spin_unlock_irqrestore(&h->lock, flags); | |
1249 | kfree(added); | |
1250 | } | |
1251 | ||
1252 | static inline int device_is_the_same(struct hpsa_scsi_dev_t *dev1, | |
1253 | struct hpsa_scsi_dev_t *dev2) | |
1254 | { | |
edd16368 SC |
1255 | /* we compare everything except lun and target as these |
1256 | * are not yet assigned. Compare parts likely | |
1257 | * to differ first | |
1258 | */ | |
1259 | if (memcmp(dev1->scsi3addr, dev2->scsi3addr, | |
1260 | sizeof(dev1->scsi3addr)) != 0) | |
1261 | return 0; | |
1262 | if (memcmp(dev1->device_id, dev2->device_id, | |
1263 | sizeof(dev1->device_id)) != 0) | |
1264 | return 0; | |
1265 | if (memcmp(dev1->model, dev2->model, sizeof(dev1->model)) != 0) | |
1266 | return 0; | |
1267 | if (memcmp(dev1->vendor, dev2->vendor, sizeof(dev1->vendor)) != 0) | |
1268 | return 0; | |
edd16368 SC |
1269 | if (dev1->devtype != dev2->devtype) |
1270 | return 0; | |
edd16368 SC |
1271 | if (dev1->bus != dev2->bus) |
1272 | return 0; | |
1273 | return 1; | |
1274 | } | |
1275 | ||
bd9244f7 ST |
1276 | static inline int device_updated(struct hpsa_scsi_dev_t *dev1, |
1277 | struct hpsa_scsi_dev_t *dev2) | |
1278 | { | |
1279 | /* Device attributes that can change, but don't mean | |
1280 | * that the device is a different device, nor that the OS | |
1281 | * needs to be told anything about the change. | |
1282 | */ | |
1283 | if (dev1->raid_level != dev2->raid_level) | |
1284 | return 1; | |
250fb125 SC |
1285 | if (dev1->offload_config != dev2->offload_config) |
1286 | return 1; | |
1287 | if (dev1->offload_enabled != dev2->offload_enabled) | |
1288 | return 1; | |
03383736 DB |
1289 | if (dev1->queue_depth != dev2->queue_depth) |
1290 | return 1; | |
bd9244f7 ST |
1291 | return 0; |
1292 | } | |
1293 | ||
edd16368 SC |
1294 | /* Find needle in haystack. If exact match found, return DEVICE_SAME, |
1295 | * and return needle location in *index. If scsi3addr matches, but not | |
1296 | * vendor, model, serial num, etc. return DEVICE_CHANGED, and return needle | |
bd9244f7 ST |
1297 | * location in *index. |
1298 | * In the case of a minor device attribute change, such as RAID level, just | |
1299 | * return DEVICE_UPDATED, along with the updated device's location in index. | |
1300 | * If needle not found, return DEVICE_NOT_FOUND. | |
edd16368 SC |
1301 | */ |
1302 | static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t *needle, | |
1303 | struct hpsa_scsi_dev_t *haystack[], int haystack_size, | |
1304 | int *index) | |
1305 | { | |
1306 | int i; | |
1307 | #define DEVICE_NOT_FOUND 0 | |
1308 | #define DEVICE_CHANGED 1 | |
1309 | #define DEVICE_SAME 2 | |
bd9244f7 | 1310 | #define DEVICE_UPDATED 3 |
edd16368 | 1311 | for (i = 0; i < haystack_size; i++) { |
23231048 SC |
1312 | if (haystack[i] == NULL) /* previously removed. */ |
1313 | continue; | |
edd16368 SC |
1314 | if (SCSI3ADDR_EQ(needle->scsi3addr, haystack[i]->scsi3addr)) { |
1315 | *index = i; | |
bd9244f7 ST |
1316 | if (device_is_the_same(needle, haystack[i])) { |
1317 | if (device_updated(needle, haystack[i])) | |
1318 | return DEVICE_UPDATED; | |
edd16368 | 1319 | return DEVICE_SAME; |
bd9244f7 | 1320 | } else { |
9846590e SC |
1321 | /* Keep offline devices offline */ |
1322 | if (needle->volume_offline) | |
1323 | return DEVICE_NOT_FOUND; | |
edd16368 | 1324 | return DEVICE_CHANGED; |
bd9244f7 | 1325 | } |
edd16368 SC |
1326 | } |
1327 | } | |
1328 | *index = -1; | |
1329 | return DEVICE_NOT_FOUND; | |
1330 | } | |
1331 | ||
9846590e SC |
1332 | static void hpsa_monitor_offline_device(struct ctlr_info *h, |
1333 | unsigned char scsi3addr[]) | |
1334 | { | |
1335 | struct offline_device_entry *device; | |
1336 | unsigned long flags; | |
1337 | ||
1338 | /* Check to see if device is already on the list */ | |
1339 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
1340 | list_for_each_entry(device, &h->offline_device_list, offline_list) { | |
1341 | if (memcmp(device->scsi3addr, scsi3addr, | |
1342 | sizeof(device->scsi3addr)) == 0) { | |
1343 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
1344 | return; | |
1345 | } | |
1346 | } | |
1347 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
1348 | ||
1349 | /* Device is not on the list, add it. */ | |
1350 | device = kmalloc(sizeof(*device), GFP_KERNEL); | |
1351 | if (!device) { | |
1352 | dev_warn(&h->pdev->dev, "out of memory in %s\n", __func__); | |
1353 | return; | |
1354 | } | |
1355 | memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); | |
1356 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
1357 | list_add_tail(&device->offline_list, &h->offline_device_list); | |
1358 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
1359 | } | |
1360 | ||
1361 | /* Print a message explaining various offline volume states */ | |
1362 | static void hpsa_show_volume_status(struct ctlr_info *h, | |
1363 | struct hpsa_scsi_dev_t *sd) | |
1364 | { | |
1365 | if (sd->volume_offline == HPSA_VPD_LV_STATUS_UNSUPPORTED) | |
1366 | dev_info(&h->pdev->dev, | |
1367 | "C%d:B%d:T%d:L%d Volume status is not available through vital product data pages.\n", | |
1368 | h->scsi_host->host_no, | |
1369 | sd->bus, sd->target, sd->lun); | |
1370 | switch (sd->volume_offline) { | |
1371 | case HPSA_LV_OK: | |
1372 | break; | |
1373 | case HPSA_LV_UNDERGOING_ERASE: | |
1374 | dev_info(&h->pdev->dev, | |
1375 | "C%d:B%d:T%d:L%d Volume is undergoing background erase process.\n", | |
1376 | h->scsi_host->host_no, | |
1377 | sd->bus, sd->target, sd->lun); | |
1378 | break; | |
1379 | case HPSA_LV_UNDERGOING_RPI: | |
1380 | dev_info(&h->pdev->dev, | |
1381 | "C%d:B%d:T%d:L%d Volume is undergoing rapid parity initialization process.\n", | |
1382 | h->scsi_host->host_no, | |
1383 | sd->bus, sd->target, sd->lun); | |
1384 | break; | |
1385 | case HPSA_LV_PENDING_RPI: | |
1386 | dev_info(&h->pdev->dev, | |
1387 | "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n", | |
1388 | h->scsi_host->host_no, | |
1389 | sd->bus, sd->target, sd->lun); | |
1390 | break; | |
1391 | case HPSA_LV_ENCRYPTED_NO_KEY: | |
1392 | dev_info(&h->pdev->dev, | |
1393 | "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because key is not present.\n", | |
1394 | h->scsi_host->host_no, | |
1395 | sd->bus, sd->target, sd->lun); | |
1396 | break; | |
1397 | case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER: | |
1398 | dev_info(&h->pdev->dev, | |
1399 | "C%d:B%d:T%d:L%d Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.\n", | |
1400 | h->scsi_host->host_no, | |
1401 | sd->bus, sd->target, sd->lun); | |
1402 | break; | |
1403 | case HPSA_LV_UNDERGOING_ENCRYPTION: | |
1404 | dev_info(&h->pdev->dev, | |
1405 | "C%d:B%d:T%d:L%d Volume is undergoing encryption process.\n", | |
1406 | h->scsi_host->host_no, | |
1407 | sd->bus, sd->target, sd->lun); | |
1408 | break; | |
1409 | case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING: | |
1410 | dev_info(&h->pdev->dev, | |
1411 | "C%d:B%d:T%d:L%d Volume is undergoing encryption re-keying process.\n", | |
1412 | h->scsi_host->host_no, | |
1413 | sd->bus, sd->target, sd->lun); | |
1414 | break; | |
1415 | case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: | |
1416 | dev_info(&h->pdev->dev, | |
1417 | "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because controller does not have encryption enabled.\n", | |
1418 | h->scsi_host->host_no, | |
1419 | sd->bus, sd->target, sd->lun); | |
1420 | break; | |
1421 | case HPSA_LV_PENDING_ENCRYPTION: | |
1422 | dev_info(&h->pdev->dev, | |
1423 | "C%d:B%d:T%d:L%d Volume is pending migration to encrypted state, but process has not started.\n", | |
1424 | h->scsi_host->host_no, | |
1425 | sd->bus, sd->target, sd->lun); | |
1426 | break; | |
1427 | case HPSA_LV_PENDING_ENCRYPTION_REKEYING: | |
1428 | dev_info(&h->pdev->dev, | |
1429 | "C%d:B%d:T%d:L%d Volume is encrypted and is pending encryption rekeying.\n", | |
1430 | h->scsi_host->host_no, | |
1431 | sd->bus, sd->target, sd->lun); | |
1432 | break; | |
1433 | } | |
1434 | } | |
1435 | ||
03383736 DB |
1436 | /* |
1437 | * Figure the list of physical drive pointers for a logical drive with | |
1438 | * raid offload configured. | |
1439 | */ | |
1440 | static void hpsa_figure_phys_disk_ptrs(struct ctlr_info *h, | |
1441 | struct hpsa_scsi_dev_t *dev[], int ndevices, | |
1442 | struct hpsa_scsi_dev_t *logical_drive) | |
1443 | { | |
1444 | struct raid_map_data *map = &logical_drive->raid_map; | |
1445 | struct raid_map_disk_data *dd = &map->data[0]; | |
1446 | int i, j; | |
1447 | int total_disks_per_row = le16_to_cpu(map->data_disks_per_row) + | |
1448 | le16_to_cpu(map->metadata_disks_per_row); | |
1449 | int nraid_map_entries = le16_to_cpu(map->row_cnt) * | |
1450 | le16_to_cpu(map->layout_map_count) * | |
1451 | total_disks_per_row; | |
1452 | int nphys_disk = le16_to_cpu(map->layout_map_count) * | |
1453 | total_disks_per_row; | |
1454 | int qdepth; | |
1455 | ||
1456 | if (nraid_map_entries > RAID_MAP_MAX_ENTRIES) | |
1457 | nraid_map_entries = RAID_MAP_MAX_ENTRIES; | |
1458 | ||
d604f533 WS |
1459 | logical_drive->nphysical_disks = nraid_map_entries; |
1460 | ||
03383736 DB |
1461 | qdepth = 0; |
1462 | for (i = 0; i < nraid_map_entries; i++) { | |
1463 | logical_drive->phys_disk[i] = NULL; | |
1464 | if (!logical_drive->offload_config) | |
1465 | continue; | |
1466 | for (j = 0; j < ndevices; j++) { | |
1467 | if (dev[j]->devtype != TYPE_DISK) | |
1468 | continue; | |
1469 | if (is_logical_dev_addr_mode(dev[j]->scsi3addr)) | |
1470 | continue; | |
1471 | if (dev[j]->ioaccel_handle != dd[i].ioaccel_handle) | |
1472 | continue; | |
1473 | ||
1474 | logical_drive->phys_disk[i] = dev[j]; | |
1475 | if (i < nphys_disk) | |
1476 | qdepth = min(h->nr_cmds, qdepth + | |
1477 | logical_drive->phys_disk[i]->queue_depth); | |
1478 | break; | |
1479 | } | |
1480 | ||
1481 | /* | |
1482 | * This can happen if a physical drive is removed and | |
1483 | * the logical drive is degraded. In that case, the RAID | |
1484 | * map data will refer to a physical disk which isn't actually | |
1485 | * present. And in that case offload_enabled should already | |
1486 | * be 0, but we'll turn it off here just in case | |
1487 | */ | |
1488 | if (!logical_drive->phys_disk[i]) { | |
1489 | logical_drive->offload_enabled = 0; | |
41ce4c35 SC |
1490 | logical_drive->offload_to_be_enabled = 0; |
1491 | logical_drive->queue_depth = 8; | |
03383736 DB |
1492 | } |
1493 | } | |
1494 | if (nraid_map_entries) | |
1495 | /* | |
1496 | * This is correct for reads, too high for full stripe writes, | |
1497 | * way too high for partial stripe writes | |
1498 | */ | |
1499 | logical_drive->queue_depth = qdepth; | |
1500 | else | |
1501 | logical_drive->queue_depth = h->nr_cmds; | |
1502 | } | |
1503 | ||
1504 | static void hpsa_update_log_drive_phys_drive_ptrs(struct ctlr_info *h, | |
1505 | struct hpsa_scsi_dev_t *dev[], int ndevices) | |
1506 | { | |
1507 | int i; | |
1508 | ||
1509 | for (i = 0; i < ndevices; i++) { | |
1510 | if (dev[i]->devtype != TYPE_DISK) | |
1511 | continue; | |
1512 | if (!is_logical_dev_addr_mode(dev[i]->scsi3addr)) | |
1513 | continue; | |
41ce4c35 SC |
1514 | |
1515 | /* | |
1516 | * If offload is currently enabled, the RAID map and | |
1517 | * phys_disk[] assignment *better* not be changing | |
1518 | * and since it isn't changing, we do not need to | |
1519 | * update it. | |
1520 | */ | |
1521 | if (dev[i]->offload_enabled) | |
1522 | continue; | |
1523 | ||
03383736 DB |
1524 | hpsa_figure_phys_disk_ptrs(h, dev, ndevices, dev[i]); |
1525 | } | |
1526 | } | |
1527 | ||
4967bd3e | 1528 | static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno, |
edd16368 SC |
1529 | struct hpsa_scsi_dev_t *sd[], int nsds) |
1530 | { | |
1531 | /* sd contains scsi3 addresses and devtypes, and inquiry | |
1532 | * data. This function takes what's in sd to be the current | |
1533 | * reality and updates h->dev[] to reflect that reality. | |
1534 | */ | |
1535 | int i, entry, device_change, changes = 0; | |
1536 | struct hpsa_scsi_dev_t *csd; | |
1537 | unsigned long flags; | |
1538 | struct hpsa_scsi_dev_t **added, **removed; | |
1539 | int nadded, nremoved; | |
1540 | struct Scsi_Host *sh = NULL; | |
1541 | ||
cfe5badc ST |
1542 | added = kzalloc(sizeof(*added) * HPSA_MAX_DEVICES, GFP_KERNEL); |
1543 | removed = kzalloc(sizeof(*removed) * HPSA_MAX_DEVICES, GFP_KERNEL); | |
edd16368 SC |
1544 | |
1545 | if (!added || !removed) { | |
1546 | dev_warn(&h->pdev->dev, "out of memory in " | |
1547 | "adjust_hpsa_scsi_table\n"); | |
1548 | goto free_and_out; | |
1549 | } | |
1550 | ||
1551 | spin_lock_irqsave(&h->devlock, flags); | |
1552 | ||
1553 | /* find any devices in h->dev[] that are not in | |
1554 | * sd[] and remove them from h->dev[], and for any | |
1555 | * devices which have changed, remove the old device | |
1556 | * info and add the new device info. | |
bd9244f7 ST |
1557 | * If minor device attributes change, just update |
1558 | * the existing device structure. | |
edd16368 SC |
1559 | */ |
1560 | i = 0; | |
1561 | nremoved = 0; | |
1562 | nadded = 0; | |
1563 | while (i < h->ndevices) { | |
1564 | csd = h->dev[i]; | |
1565 | device_change = hpsa_scsi_find_entry(csd, sd, nsds, &entry); | |
1566 | if (device_change == DEVICE_NOT_FOUND) { | |
1567 | changes++; | |
1568 | hpsa_scsi_remove_entry(h, hostno, i, | |
1569 | removed, &nremoved); | |
1570 | continue; /* remove ^^^, hence i not incremented */ | |
1571 | } else if (device_change == DEVICE_CHANGED) { | |
1572 | changes++; | |
2a8ccf31 SC |
1573 | hpsa_scsi_replace_entry(h, hostno, i, sd[entry], |
1574 | added, &nadded, removed, &nremoved); | |
c7f172dc SC |
1575 | /* Set it to NULL to prevent it from being freed |
1576 | * at the bottom of hpsa_update_scsi_devices() | |
1577 | */ | |
1578 | sd[entry] = NULL; | |
bd9244f7 ST |
1579 | } else if (device_change == DEVICE_UPDATED) { |
1580 | hpsa_scsi_update_entry(h, hostno, i, sd[entry]); | |
edd16368 SC |
1581 | } |
1582 | i++; | |
1583 | } | |
1584 | ||
1585 | /* Now, make sure every device listed in sd[] is also | |
1586 | * listed in h->dev[], adding them if they aren't found | |
1587 | */ | |
1588 | ||
1589 | for (i = 0; i < nsds; i++) { | |
1590 | if (!sd[i]) /* if already added above. */ | |
1591 | continue; | |
9846590e SC |
1592 | |
1593 | /* Don't add devices which are NOT READY, FORMAT IN PROGRESS | |
1594 | * as the SCSI mid-layer does not handle such devices well. | |
1595 | * It relentlessly loops sending TUR at 3Hz, then READ(10) | |
1596 | * at 160Hz, and prevents the system from coming up. | |
1597 | */ | |
1598 | if (sd[i]->volume_offline) { | |
1599 | hpsa_show_volume_status(h, sd[i]); | |
0d96ef5f | 1600 | hpsa_show_dev_msg(KERN_INFO, h, sd[i], "offline"); |
9846590e SC |
1601 | continue; |
1602 | } | |
1603 | ||
edd16368 SC |
1604 | device_change = hpsa_scsi_find_entry(sd[i], h->dev, |
1605 | h->ndevices, &entry); | |
1606 | if (device_change == DEVICE_NOT_FOUND) { | |
1607 | changes++; | |
1608 | if (hpsa_scsi_add_entry(h, hostno, sd[i], | |
1609 | added, &nadded) != 0) | |
1610 | break; | |
1611 | sd[i] = NULL; /* prevent from being freed later. */ | |
1612 | } else if (device_change == DEVICE_CHANGED) { | |
1613 | /* should never happen... */ | |
1614 | changes++; | |
1615 | dev_warn(&h->pdev->dev, | |
1616 | "device unexpectedly changed.\n"); | |
1617 | /* but if it does happen, we just ignore that device */ | |
1618 | } | |
1619 | } | |
41ce4c35 SC |
1620 | hpsa_update_log_drive_phys_drive_ptrs(h, h->dev, h->ndevices); |
1621 | ||
1622 | /* Now that h->dev[]->phys_disk[] is coherent, we can enable | |
1623 | * any logical drives that need it enabled. | |
1624 | */ | |
1625 | for (i = 0; i < h->ndevices; i++) | |
1626 | h->dev[i]->offload_enabled = h->dev[i]->offload_to_be_enabled; | |
1627 | ||
edd16368 SC |
1628 | spin_unlock_irqrestore(&h->devlock, flags); |
1629 | ||
9846590e SC |
1630 | /* Monitor devices which are in one of several NOT READY states to be |
1631 | * brought online later. This must be done without holding h->devlock, | |
1632 | * so don't touch h->dev[] | |
1633 | */ | |
1634 | for (i = 0; i < nsds; i++) { | |
1635 | if (!sd[i]) /* if already added above. */ | |
1636 | continue; | |
1637 | if (sd[i]->volume_offline) | |
1638 | hpsa_monitor_offline_device(h, sd[i]->scsi3addr); | |
1639 | } | |
1640 | ||
edd16368 SC |
1641 | /* Don't notify scsi mid layer of any changes the first time through |
1642 | * (or if there are no changes) scsi_scan_host will do it later the | |
1643 | * first time through. | |
1644 | */ | |
1645 | if (hostno == -1 || !changes) | |
1646 | goto free_and_out; | |
1647 | ||
1648 | sh = h->scsi_host; | |
1649 | /* Notify scsi mid layer of any removed devices */ | |
1650 | for (i = 0; i < nremoved; i++) { | |
41ce4c35 SC |
1651 | if (removed[i]->expose_state & HPSA_SCSI_ADD) { |
1652 | struct scsi_device *sdev = | |
1653 | scsi_device_lookup(sh, removed[i]->bus, | |
1654 | removed[i]->target, removed[i]->lun); | |
1655 | if (sdev != NULL) { | |
1656 | scsi_remove_device(sdev); | |
1657 | scsi_device_put(sdev); | |
1658 | } else { | |
1659 | /* | |
1660 | * We don't expect to get here. | |
1661 | * future cmds to this device will get selection | |
1662 | * timeout as if the device was gone. | |
1663 | */ | |
0d96ef5f WS |
1664 | hpsa_show_dev_msg(KERN_WARNING, h, removed[i], |
1665 | "didn't find device for removal."); | |
41ce4c35 | 1666 | } |
edd16368 SC |
1667 | } |
1668 | kfree(removed[i]); | |
1669 | removed[i] = NULL; | |
1670 | } | |
1671 | ||
1672 | /* Notify scsi mid layer of any added devices */ | |
1673 | for (i = 0; i < nadded; i++) { | |
41ce4c35 SC |
1674 | if (!(added[i]->expose_state & HPSA_SCSI_ADD)) |
1675 | continue; | |
edd16368 SC |
1676 | if (scsi_add_device(sh, added[i]->bus, |
1677 | added[i]->target, added[i]->lun) == 0) | |
1678 | continue; | |
0d96ef5f WS |
1679 | hpsa_show_dev_msg(KERN_WARNING, h, added[i], |
1680 | "addition failed, device not added."); | |
edd16368 SC |
1681 | /* now we have to remove it from h->dev, |
1682 | * since it didn't get added to scsi mid layer | |
1683 | */ | |
1684 | fixup_botched_add(h, added[i]); | |
105a3dbc | 1685 | added[i] = NULL; |
edd16368 SC |
1686 | } |
1687 | ||
1688 | free_and_out: | |
1689 | kfree(added); | |
1690 | kfree(removed); | |
edd16368 SC |
1691 | } |
1692 | ||
1693 | /* | |
9e03aa2f | 1694 | * Lookup bus/target/lun and return corresponding struct hpsa_scsi_dev_t * |
edd16368 SC |
1695 | * Assume's h->devlock is held. |
1696 | */ | |
1697 | static struct hpsa_scsi_dev_t *lookup_hpsa_scsi_dev(struct ctlr_info *h, | |
1698 | int bus, int target, int lun) | |
1699 | { | |
1700 | int i; | |
1701 | struct hpsa_scsi_dev_t *sd; | |
1702 | ||
1703 | for (i = 0; i < h->ndevices; i++) { | |
1704 | sd = h->dev[i]; | |
1705 | if (sd->bus == bus && sd->target == target && sd->lun == lun) | |
1706 | return sd; | |
1707 | } | |
1708 | return NULL; | |
1709 | } | |
1710 | ||
edd16368 SC |
1711 | static int hpsa_slave_alloc(struct scsi_device *sdev) |
1712 | { | |
1713 | struct hpsa_scsi_dev_t *sd; | |
1714 | unsigned long flags; | |
1715 | struct ctlr_info *h; | |
1716 | ||
1717 | h = sdev_to_hba(sdev); | |
1718 | spin_lock_irqsave(&h->devlock, flags); | |
1719 | sd = lookup_hpsa_scsi_dev(h, sdev_channel(sdev), | |
1720 | sdev_id(sdev), sdev->lun); | |
41ce4c35 | 1721 | if (likely(sd)) { |
03383736 | 1722 | atomic_set(&sd->ioaccel_cmds_out, 0); |
41ce4c35 SC |
1723 | sdev->hostdata = (sd->expose_state & HPSA_SCSI_ADD) ? sd : NULL; |
1724 | } else | |
1725 | sdev->hostdata = NULL; | |
edd16368 SC |
1726 | spin_unlock_irqrestore(&h->devlock, flags); |
1727 | return 0; | |
1728 | } | |
1729 | ||
41ce4c35 SC |
1730 | /* configure scsi device based on internal per-device structure */ |
1731 | static int hpsa_slave_configure(struct scsi_device *sdev) | |
1732 | { | |
1733 | struct hpsa_scsi_dev_t *sd; | |
1734 | int queue_depth; | |
1735 | ||
1736 | sd = sdev->hostdata; | |
1737 | sdev->no_uld_attach = !sd || !(sd->expose_state & HPSA_ULD_ATTACH); | |
1738 | ||
1739 | if (sd) | |
1740 | queue_depth = sd->queue_depth != 0 ? | |
1741 | sd->queue_depth : sdev->host->can_queue; | |
1742 | else | |
1743 | queue_depth = sdev->host->can_queue; | |
1744 | ||
1745 | scsi_change_queue_depth(sdev, queue_depth); | |
1746 | ||
1747 | return 0; | |
1748 | } | |
1749 | ||
edd16368 SC |
1750 | static void hpsa_slave_destroy(struct scsi_device *sdev) |
1751 | { | |
bcc44255 | 1752 | /* nothing to do. */ |
edd16368 SC |
1753 | } |
1754 | ||
d9a729f3 WS |
1755 | static void hpsa_free_ioaccel2_sg_chain_blocks(struct ctlr_info *h) |
1756 | { | |
1757 | int i; | |
1758 | ||
1759 | if (!h->ioaccel2_cmd_sg_list) | |
1760 | return; | |
1761 | for (i = 0; i < h->nr_cmds; i++) { | |
1762 | kfree(h->ioaccel2_cmd_sg_list[i]); | |
1763 | h->ioaccel2_cmd_sg_list[i] = NULL; | |
1764 | } | |
1765 | kfree(h->ioaccel2_cmd_sg_list); | |
1766 | h->ioaccel2_cmd_sg_list = NULL; | |
1767 | } | |
1768 | ||
1769 | static int hpsa_allocate_ioaccel2_sg_chain_blocks(struct ctlr_info *h) | |
1770 | { | |
1771 | int i; | |
1772 | ||
1773 | if (h->chainsize <= 0) | |
1774 | return 0; | |
1775 | ||
1776 | h->ioaccel2_cmd_sg_list = | |
1777 | kzalloc(sizeof(*h->ioaccel2_cmd_sg_list) * h->nr_cmds, | |
1778 | GFP_KERNEL); | |
1779 | if (!h->ioaccel2_cmd_sg_list) | |
1780 | return -ENOMEM; | |
1781 | for (i = 0; i < h->nr_cmds; i++) { | |
1782 | h->ioaccel2_cmd_sg_list[i] = | |
1783 | kmalloc(sizeof(*h->ioaccel2_cmd_sg_list[i]) * | |
1784 | h->maxsgentries, GFP_KERNEL); | |
1785 | if (!h->ioaccel2_cmd_sg_list[i]) | |
1786 | goto clean; | |
1787 | } | |
1788 | return 0; | |
1789 | ||
1790 | clean: | |
1791 | hpsa_free_ioaccel2_sg_chain_blocks(h); | |
1792 | return -ENOMEM; | |
1793 | } | |
1794 | ||
33a2ffce SC |
1795 | static void hpsa_free_sg_chain_blocks(struct ctlr_info *h) |
1796 | { | |
1797 | int i; | |
1798 | ||
1799 | if (!h->cmd_sg_list) | |
1800 | return; | |
1801 | for (i = 0; i < h->nr_cmds; i++) { | |
1802 | kfree(h->cmd_sg_list[i]); | |
1803 | h->cmd_sg_list[i] = NULL; | |
1804 | } | |
1805 | kfree(h->cmd_sg_list); | |
1806 | h->cmd_sg_list = NULL; | |
1807 | } | |
1808 | ||
105a3dbc | 1809 | static int hpsa_alloc_sg_chain_blocks(struct ctlr_info *h) |
33a2ffce SC |
1810 | { |
1811 | int i; | |
1812 | ||
1813 | if (h->chainsize <= 0) | |
1814 | return 0; | |
1815 | ||
1816 | h->cmd_sg_list = kzalloc(sizeof(*h->cmd_sg_list) * h->nr_cmds, | |
1817 | GFP_KERNEL); | |
3d4e6af8 RE |
1818 | if (!h->cmd_sg_list) { |
1819 | dev_err(&h->pdev->dev, "Failed to allocate SG list\n"); | |
33a2ffce | 1820 | return -ENOMEM; |
3d4e6af8 | 1821 | } |
33a2ffce SC |
1822 | for (i = 0; i < h->nr_cmds; i++) { |
1823 | h->cmd_sg_list[i] = kmalloc(sizeof(*h->cmd_sg_list[i]) * | |
1824 | h->chainsize, GFP_KERNEL); | |
3d4e6af8 RE |
1825 | if (!h->cmd_sg_list[i]) { |
1826 | dev_err(&h->pdev->dev, "Failed to allocate cmd SG\n"); | |
33a2ffce | 1827 | goto clean; |
3d4e6af8 | 1828 | } |
33a2ffce SC |
1829 | } |
1830 | return 0; | |
1831 | ||
1832 | clean: | |
1833 | hpsa_free_sg_chain_blocks(h); | |
1834 | return -ENOMEM; | |
1835 | } | |
1836 | ||
d9a729f3 WS |
1837 | static int hpsa_map_ioaccel2_sg_chain_block(struct ctlr_info *h, |
1838 | struct io_accel2_cmd *cp, struct CommandList *c) | |
1839 | { | |
1840 | struct ioaccel2_sg_element *chain_block; | |
1841 | u64 temp64; | |
1842 | u32 chain_size; | |
1843 | ||
1844 | chain_block = h->ioaccel2_cmd_sg_list[c->cmdindex]; | |
1845 | chain_size = le32_to_cpu(cp->data_len); | |
1846 | temp64 = pci_map_single(h->pdev, chain_block, chain_size, | |
1847 | PCI_DMA_TODEVICE); | |
1848 | if (dma_mapping_error(&h->pdev->dev, temp64)) { | |
1849 | /* prevent subsequent unmapping */ | |
1850 | cp->sg->address = 0; | |
1851 | return -1; | |
1852 | } | |
1853 | cp->sg->address = cpu_to_le64(temp64); | |
1854 | return 0; | |
1855 | } | |
1856 | ||
1857 | static void hpsa_unmap_ioaccel2_sg_chain_block(struct ctlr_info *h, | |
1858 | struct io_accel2_cmd *cp) | |
1859 | { | |
1860 | struct ioaccel2_sg_element *chain_sg; | |
1861 | u64 temp64; | |
1862 | u32 chain_size; | |
1863 | ||
1864 | chain_sg = cp->sg; | |
1865 | temp64 = le64_to_cpu(chain_sg->address); | |
1866 | chain_size = le32_to_cpu(cp->data_len); | |
1867 | pci_unmap_single(h->pdev, temp64, chain_size, PCI_DMA_TODEVICE); | |
1868 | } | |
1869 | ||
e2bea6df | 1870 | static int hpsa_map_sg_chain_block(struct ctlr_info *h, |
33a2ffce SC |
1871 | struct CommandList *c) |
1872 | { | |
1873 | struct SGDescriptor *chain_sg, *chain_block; | |
1874 | u64 temp64; | |
50a0decf | 1875 | u32 chain_len; |
33a2ffce SC |
1876 | |
1877 | chain_sg = &c->SG[h->max_cmd_sg_entries - 1]; | |
1878 | chain_block = h->cmd_sg_list[c->cmdindex]; | |
50a0decf SC |
1879 | chain_sg->Ext = cpu_to_le32(HPSA_SG_CHAIN); |
1880 | chain_len = sizeof(*chain_sg) * | |
2b08b3e9 | 1881 | (le16_to_cpu(c->Header.SGTotal) - h->max_cmd_sg_entries); |
50a0decf SC |
1882 | chain_sg->Len = cpu_to_le32(chain_len); |
1883 | temp64 = pci_map_single(h->pdev, chain_block, chain_len, | |
33a2ffce | 1884 | PCI_DMA_TODEVICE); |
e2bea6df SC |
1885 | if (dma_mapping_error(&h->pdev->dev, temp64)) { |
1886 | /* prevent subsequent unmapping */ | |
50a0decf | 1887 | chain_sg->Addr = cpu_to_le64(0); |
e2bea6df SC |
1888 | return -1; |
1889 | } | |
50a0decf | 1890 | chain_sg->Addr = cpu_to_le64(temp64); |
e2bea6df | 1891 | return 0; |
33a2ffce SC |
1892 | } |
1893 | ||
1894 | static void hpsa_unmap_sg_chain_block(struct ctlr_info *h, | |
1895 | struct CommandList *c) | |
1896 | { | |
1897 | struct SGDescriptor *chain_sg; | |
33a2ffce | 1898 | |
50a0decf | 1899 | if (le16_to_cpu(c->Header.SGTotal) <= h->max_cmd_sg_entries) |
33a2ffce SC |
1900 | return; |
1901 | ||
1902 | chain_sg = &c->SG[h->max_cmd_sg_entries - 1]; | |
50a0decf SC |
1903 | pci_unmap_single(h->pdev, le64_to_cpu(chain_sg->Addr), |
1904 | le32_to_cpu(chain_sg->Len), PCI_DMA_TODEVICE); | |
33a2ffce SC |
1905 | } |
1906 | ||
a09c1441 ST |
1907 | |
1908 | /* Decode the various types of errors on ioaccel2 path. | |
1909 | * Return 1 for any error that should generate a RAID path retry. | |
1910 | * Return 0 for errors that don't require a RAID path retry. | |
1911 | */ | |
1912 | static int handle_ioaccel_mode2_error(struct ctlr_info *h, | |
c349775e ST |
1913 | struct CommandList *c, |
1914 | struct scsi_cmnd *cmd, | |
1915 | struct io_accel2_cmd *c2) | |
1916 | { | |
1917 | int data_len; | |
a09c1441 | 1918 | int retry = 0; |
c40820d5 | 1919 | u32 ioaccel2_resid = 0; |
c349775e ST |
1920 | |
1921 | switch (c2->error_data.serv_response) { | |
1922 | case IOACCEL2_SERV_RESPONSE_COMPLETE: | |
1923 | switch (c2->error_data.status) { | |
1924 | case IOACCEL2_STATUS_SR_TASK_COMP_GOOD: | |
1925 | break; | |
1926 | case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND: | |
ee6b1889 | 1927 | cmd->result |= SAM_STAT_CHECK_CONDITION; |
c349775e | 1928 | if (c2->error_data.data_present != |
ee6b1889 SC |
1929 | IOACCEL2_SENSE_DATA_PRESENT) { |
1930 | memset(cmd->sense_buffer, 0, | |
1931 | SCSI_SENSE_BUFFERSIZE); | |
c349775e | 1932 | break; |
ee6b1889 | 1933 | } |
c349775e ST |
1934 | /* copy the sense data */ |
1935 | data_len = c2->error_data.sense_data_len; | |
1936 | if (data_len > SCSI_SENSE_BUFFERSIZE) | |
1937 | data_len = SCSI_SENSE_BUFFERSIZE; | |
1938 | if (data_len > sizeof(c2->error_data.sense_data_buff)) | |
1939 | data_len = | |
1940 | sizeof(c2->error_data.sense_data_buff); | |
1941 | memcpy(cmd->sense_buffer, | |
1942 | c2->error_data.sense_data_buff, data_len); | |
a09c1441 | 1943 | retry = 1; |
c349775e ST |
1944 | break; |
1945 | case IOACCEL2_STATUS_SR_TASK_COMP_BUSY: | |
a09c1441 | 1946 | retry = 1; |
c349775e ST |
1947 | break; |
1948 | case IOACCEL2_STATUS_SR_TASK_COMP_RES_CON: | |
a09c1441 | 1949 | retry = 1; |
c349775e ST |
1950 | break; |
1951 | case IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL: | |
4a8da22b | 1952 | retry = 1; |
c349775e ST |
1953 | break; |
1954 | case IOACCEL2_STATUS_SR_TASK_COMP_ABORTED: | |
a09c1441 | 1955 | retry = 1; |
c349775e ST |
1956 | break; |
1957 | default: | |
a09c1441 | 1958 | retry = 1; |
c349775e ST |
1959 | break; |
1960 | } | |
1961 | break; | |
1962 | case IOACCEL2_SERV_RESPONSE_FAILURE: | |
c40820d5 JH |
1963 | switch (c2->error_data.status) { |
1964 | case IOACCEL2_STATUS_SR_IO_ERROR: | |
1965 | case IOACCEL2_STATUS_SR_IO_ABORTED: | |
1966 | case IOACCEL2_STATUS_SR_OVERRUN: | |
1967 | retry = 1; | |
1968 | break; | |
1969 | case IOACCEL2_STATUS_SR_UNDERRUN: | |
1970 | cmd->result = (DID_OK << 16); /* host byte */ | |
1971 | cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ | |
1972 | ioaccel2_resid = get_unaligned_le32( | |
1973 | &c2->error_data.resid_cnt[0]); | |
1974 | scsi_set_resid(cmd, ioaccel2_resid); | |
1975 | break; | |
1976 | case IOACCEL2_STATUS_SR_NO_PATH_TO_DEVICE: | |
1977 | case IOACCEL2_STATUS_SR_INVALID_DEVICE: | |
1978 | case IOACCEL2_STATUS_SR_IOACCEL_DISABLED: | |
1979 | /* We will get an event from ctlr to trigger rescan */ | |
1980 | retry = 1; | |
1981 | break; | |
1982 | default: | |
1983 | retry = 1; | |
c40820d5 | 1984 | } |
c349775e ST |
1985 | break; |
1986 | case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE: | |
1987 | break; | |
1988 | case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS: | |
1989 | break; | |
1990 | case IOACCEL2_SERV_RESPONSE_TMF_REJECTED: | |
a09c1441 | 1991 | retry = 1; |
c349775e ST |
1992 | break; |
1993 | case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN: | |
c349775e ST |
1994 | break; |
1995 | default: | |
a09c1441 | 1996 | retry = 1; |
c349775e ST |
1997 | break; |
1998 | } | |
a09c1441 ST |
1999 | |
2000 | return retry; /* retry on raid path? */ | |
c349775e ST |
2001 | } |
2002 | ||
a58e7e53 WS |
2003 | static void hpsa_cmd_resolve_events(struct ctlr_info *h, |
2004 | struct CommandList *c) | |
2005 | { | |
d604f533 WS |
2006 | bool do_wake = false; |
2007 | ||
a58e7e53 WS |
2008 | /* |
2009 | * Prevent the following race in the abort handler: | |
2010 | * | |
2011 | * 1. LLD is requested to abort a SCSI command | |
2012 | * 2. The SCSI command completes | |
2013 | * 3. The struct CommandList associated with step 2 is made available | |
2014 | * 4. New I/O request to LLD to another LUN re-uses struct CommandList | |
2015 | * 5. Abort handler follows scsi_cmnd->host_scribble and | |
2016 | * finds struct CommandList and tries to aborts it | |
2017 | * Now we have aborted the wrong command. | |
2018 | * | |
d604f533 WS |
2019 | * Reset c->scsi_cmd here so that the abort or reset handler will know |
2020 | * this command has completed. Then, check to see if the handler is | |
a58e7e53 WS |
2021 | * waiting for this command, and, if so, wake it. |
2022 | */ | |
2023 | c->scsi_cmd = SCSI_CMD_IDLE; | |
d604f533 | 2024 | mb(); /* Declare command idle before checking for pending events. */ |
a58e7e53 | 2025 | if (c->abort_pending) { |
d604f533 | 2026 | do_wake = true; |
a58e7e53 | 2027 | c->abort_pending = false; |
a58e7e53 | 2028 | } |
d604f533 WS |
2029 | if (c->reset_pending) { |
2030 | unsigned long flags; | |
2031 | struct hpsa_scsi_dev_t *dev; | |
2032 | ||
2033 | /* | |
2034 | * There appears to be a reset pending; lock the lock and | |
2035 | * reconfirm. If so, then decrement the count of outstanding | |
2036 | * commands and wake the reset command if this is the last one. | |
2037 | */ | |
2038 | spin_lock_irqsave(&h->lock, flags); | |
2039 | dev = c->reset_pending; /* Re-fetch under the lock. */ | |
2040 | if (dev && atomic_dec_and_test(&dev->reset_cmds_out)) | |
2041 | do_wake = true; | |
2042 | c->reset_pending = NULL; | |
2043 | spin_unlock_irqrestore(&h->lock, flags); | |
2044 | } | |
2045 | ||
2046 | if (do_wake) | |
2047 | wake_up_all(&h->event_sync_wait_queue); | |
a58e7e53 WS |
2048 | } |
2049 | ||
73153fe5 WS |
2050 | static void hpsa_cmd_resolve_and_free(struct ctlr_info *h, |
2051 | struct CommandList *c) | |
2052 | { | |
2053 | hpsa_cmd_resolve_events(h, c); | |
2054 | cmd_tagged_free(h, c); | |
2055 | } | |
2056 | ||
8a0ff92c WS |
2057 | static void hpsa_cmd_free_and_done(struct ctlr_info *h, |
2058 | struct CommandList *c, struct scsi_cmnd *cmd) | |
2059 | { | |
73153fe5 | 2060 | hpsa_cmd_resolve_and_free(h, c); |
8a0ff92c WS |
2061 | cmd->scsi_done(cmd); |
2062 | } | |
2063 | ||
2064 | static void hpsa_retry_cmd(struct ctlr_info *h, struct CommandList *c) | |
2065 | { | |
2066 | INIT_WORK(&c->work, hpsa_command_resubmit_worker); | |
2067 | queue_work_on(raw_smp_processor_id(), h->resubmit_wq, &c->work); | |
2068 | } | |
2069 | ||
a58e7e53 WS |
2070 | static void hpsa_set_scsi_cmd_aborted(struct scsi_cmnd *cmd) |
2071 | { | |
2072 | cmd->result = DID_ABORT << 16; | |
2073 | } | |
2074 | ||
2075 | static void hpsa_cmd_abort_and_free(struct ctlr_info *h, struct CommandList *c, | |
2076 | struct scsi_cmnd *cmd) | |
2077 | { | |
2078 | hpsa_set_scsi_cmd_aborted(cmd); | |
2079 | dev_warn(&h->pdev->dev, "CDB %16phN was aborted with status 0x%x\n", | |
2080 | c->Request.CDB, c->err_info->ScsiStatus); | |
73153fe5 | 2081 | hpsa_cmd_resolve_and_free(h, c); |
a58e7e53 WS |
2082 | } |
2083 | ||
c349775e ST |
2084 | static void process_ioaccel2_completion(struct ctlr_info *h, |
2085 | struct CommandList *c, struct scsi_cmnd *cmd, | |
2086 | struct hpsa_scsi_dev_t *dev) | |
2087 | { | |
2088 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
2089 | ||
2090 | /* check for good status */ | |
2091 | if (likely(c2->error_data.serv_response == 0 && | |
8a0ff92c WS |
2092 | c2->error_data.status == 0)) |
2093 | return hpsa_cmd_free_and_done(h, c, cmd); | |
c349775e | 2094 | |
8a0ff92c WS |
2095 | /* |
2096 | * Any RAID offload error results in retry which will use | |
c349775e ST |
2097 | * the normal I/O path so the controller can handle whatever's |
2098 | * wrong. | |
2099 | */ | |
2100 | if (is_logical_dev_addr_mode(dev->scsi3addr) && | |
2101 | c2->error_data.serv_response == | |
2102 | IOACCEL2_SERV_RESPONSE_FAILURE) { | |
080ef1cc DB |
2103 | if (c2->error_data.status == |
2104 | IOACCEL2_STATUS_SR_IOACCEL_DISABLED) | |
2105 | dev->offload_enabled = 0; | |
8a0ff92c WS |
2106 | |
2107 | return hpsa_retry_cmd(h, c); | |
a09c1441 | 2108 | } |
080ef1cc DB |
2109 | |
2110 | if (handle_ioaccel_mode2_error(h, c, cmd, c2)) | |
8a0ff92c | 2111 | return hpsa_retry_cmd(h, c); |
080ef1cc | 2112 | |
8a0ff92c | 2113 | return hpsa_cmd_free_and_done(h, c, cmd); |
c349775e ST |
2114 | } |
2115 | ||
9437ac43 SC |
2116 | /* Returns 0 on success, < 0 otherwise. */ |
2117 | static int hpsa_evaluate_tmf_status(struct ctlr_info *h, | |
2118 | struct CommandList *cp) | |
2119 | { | |
2120 | u8 tmf_status = cp->err_info->ScsiStatus; | |
2121 | ||
2122 | switch (tmf_status) { | |
2123 | case CISS_TMF_COMPLETE: | |
2124 | /* | |
2125 | * CISS_TMF_COMPLETE never happens, instead, | |
2126 | * ei->CommandStatus == 0 for this case. | |
2127 | */ | |
2128 | case CISS_TMF_SUCCESS: | |
2129 | return 0; | |
2130 | case CISS_TMF_INVALID_FRAME: | |
2131 | case CISS_TMF_NOT_SUPPORTED: | |
2132 | case CISS_TMF_FAILED: | |
2133 | case CISS_TMF_WRONG_LUN: | |
2134 | case CISS_TMF_OVERLAPPED_TAG: | |
2135 | break; | |
2136 | default: | |
2137 | dev_warn(&h->pdev->dev, "Unknown TMF status: 0x%02x\n", | |
2138 | tmf_status); | |
2139 | break; | |
2140 | } | |
2141 | return -tmf_status; | |
2142 | } | |
2143 | ||
1fb011fb | 2144 | static void complete_scsi_command(struct CommandList *cp) |
edd16368 SC |
2145 | { |
2146 | struct scsi_cmnd *cmd; | |
2147 | struct ctlr_info *h; | |
2148 | struct ErrorInfo *ei; | |
283b4a9b | 2149 | struct hpsa_scsi_dev_t *dev; |
d9a729f3 | 2150 | struct io_accel2_cmd *c2; |
edd16368 | 2151 | |
9437ac43 SC |
2152 | u8 sense_key; |
2153 | u8 asc; /* additional sense code */ | |
2154 | u8 ascq; /* additional sense code qualifier */ | |
db111e18 | 2155 | unsigned long sense_data_size; |
edd16368 SC |
2156 | |
2157 | ei = cp->err_info; | |
7fa3030c | 2158 | cmd = cp->scsi_cmd; |
edd16368 | 2159 | h = cp->h; |
283b4a9b | 2160 | dev = cmd->device->hostdata; |
d9a729f3 | 2161 | c2 = &h->ioaccel2_cmd_pool[cp->cmdindex]; |
edd16368 SC |
2162 | |
2163 | scsi_dma_unmap(cmd); /* undo the DMA mappings */ | |
e1f7de0c | 2164 | if ((cp->cmd_type == CMD_SCSI) && |
2b08b3e9 | 2165 | (le16_to_cpu(cp->Header.SGTotal) > h->max_cmd_sg_entries)) |
33a2ffce | 2166 | hpsa_unmap_sg_chain_block(h, cp); |
edd16368 | 2167 | |
d9a729f3 WS |
2168 | if ((cp->cmd_type == CMD_IOACCEL2) && |
2169 | (c2->sg[0].chain_indicator == IOACCEL2_CHAIN)) | |
2170 | hpsa_unmap_ioaccel2_sg_chain_block(h, c2); | |
2171 | ||
edd16368 SC |
2172 | cmd->result = (DID_OK << 16); /* host byte */ |
2173 | cmd->result |= (COMMAND_COMPLETE << 8); /* msg byte */ | |
c349775e | 2174 | |
03383736 DB |
2175 | if (cp->cmd_type == CMD_IOACCEL2 || cp->cmd_type == CMD_IOACCEL1) |
2176 | atomic_dec(&cp->phys_disk->ioaccel_cmds_out); | |
2177 | ||
25163bd5 WS |
2178 | /* |
2179 | * We check for lockup status here as it may be set for | |
2180 | * CMD_SCSI, CMD_IOACCEL1 and CMD_IOACCEL2 commands by | |
2181 | * fail_all_oustanding_cmds() | |
2182 | */ | |
2183 | if (unlikely(ei->CommandStatus == CMD_CTLR_LOCKUP)) { | |
2184 | /* DID_NO_CONNECT will prevent a retry */ | |
2185 | cmd->result = DID_NO_CONNECT << 16; | |
8a0ff92c | 2186 | return hpsa_cmd_free_and_done(h, cp, cmd); |
25163bd5 WS |
2187 | } |
2188 | ||
d604f533 WS |
2189 | if ((unlikely(hpsa_is_pending_event(cp)))) { |
2190 | if (cp->reset_pending) | |
2191 | return hpsa_cmd_resolve_and_free(h, cp); | |
2192 | if (cp->abort_pending) | |
2193 | return hpsa_cmd_abort_and_free(h, cp, cmd); | |
2194 | } | |
2195 | ||
c349775e ST |
2196 | if (cp->cmd_type == CMD_IOACCEL2) |
2197 | return process_ioaccel2_completion(h, cp, cmd, dev); | |
2198 | ||
6aa4c361 | 2199 | scsi_set_resid(cmd, ei->ResidualCnt); |
8a0ff92c WS |
2200 | if (ei->CommandStatus == 0) |
2201 | return hpsa_cmd_free_and_done(h, cp, cmd); | |
6aa4c361 | 2202 | |
e1f7de0c MG |
2203 | /* For I/O accelerator commands, copy over some fields to the normal |
2204 | * CISS header used below for error handling. | |
2205 | */ | |
2206 | if (cp->cmd_type == CMD_IOACCEL1) { | |
2207 | struct io_accel1_cmd *c = &h->ioaccel_cmd_pool[cp->cmdindex]; | |
2b08b3e9 DB |
2208 | cp->Header.SGList = scsi_sg_count(cmd); |
2209 | cp->Header.SGTotal = cpu_to_le16(cp->Header.SGList); | |
2210 | cp->Request.CDBLen = le16_to_cpu(c->io_flags) & | |
2211 | IOACCEL1_IOFLAGS_CDBLEN_MASK; | |
50a0decf | 2212 | cp->Header.tag = c->tag; |
e1f7de0c MG |
2213 | memcpy(cp->Header.LUN.LunAddrBytes, c->CISS_LUN, 8); |
2214 | memcpy(cp->Request.CDB, c->CDB, cp->Request.CDBLen); | |
283b4a9b SC |
2215 | |
2216 | /* Any RAID offload error results in retry which will use | |
2217 | * the normal I/O path so the controller can handle whatever's | |
2218 | * wrong. | |
2219 | */ | |
2220 | if (is_logical_dev_addr_mode(dev->scsi3addr)) { | |
2221 | if (ei->CommandStatus == CMD_IOACCEL_DISABLED) | |
2222 | dev->offload_enabled = 0; | |
d604f533 | 2223 | return hpsa_retry_cmd(h, cp); |
283b4a9b | 2224 | } |
e1f7de0c MG |
2225 | } |
2226 | ||
edd16368 SC |
2227 | /* an error has occurred */ |
2228 | switch (ei->CommandStatus) { | |
2229 | ||
2230 | case CMD_TARGET_STATUS: | |
9437ac43 SC |
2231 | cmd->result |= ei->ScsiStatus; |
2232 | /* copy the sense data */ | |
2233 | if (SCSI_SENSE_BUFFERSIZE < sizeof(ei->SenseInfo)) | |
2234 | sense_data_size = SCSI_SENSE_BUFFERSIZE; | |
2235 | else | |
2236 | sense_data_size = sizeof(ei->SenseInfo); | |
2237 | if (ei->SenseLen < sense_data_size) | |
2238 | sense_data_size = ei->SenseLen; | |
2239 | memcpy(cmd->sense_buffer, ei->SenseInfo, sense_data_size); | |
2240 | if (ei->ScsiStatus) | |
2241 | decode_sense_data(ei->SenseInfo, sense_data_size, | |
2242 | &sense_key, &asc, &ascq); | |
edd16368 | 2243 | if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION) { |
1d3b3609 | 2244 | if (sense_key == ABORTED_COMMAND) { |
2e311fba | 2245 | cmd->result |= DID_SOFT_ERROR << 16; |
1d3b3609 MG |
2246 | break; |
2247 | } | |
edd16368 SC |
2248 | break; |
2249 | } | |
edd16368 SC |
2250 | /* Problem was not a check condition |
2251 | * Pass it up to the upper layers... | |
2252 | */ | |
2253 | if (ei->ScsiStatus) { | |
2254 | dev_warn(&h->pdev->dev, "cp %p has status 0x%x " | |
2255 | "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, " | |
2256 | "Returning result: 0x%x\n", | |
2257 | cp, ei->ScsiStatus, | |
2258 | sense_key, asc, ascq, | |
2259 | cmd->result); | |
2260 | } else { /* scsi status is zero??? How??? */ | |
2261 | dev_warn(&h->pdev->dev, "cp %p SCSI status was 0. " | |
2262 | "Returning no connection.\n", cp), | |
2263 | ||
2264 | /* Ordinarily, this case should never happen, | |
2265 | * but there is a bug in some released firmware | |
2266 | * revisions that allows it to happen if, for | |
2267 | * example, a 4100 backplane loses power and | |
2268 | * the tape drive is in it. We assume that | |
2269 | * it's a fatal error of some kind because we | |
2270 | * can't show that it wasn't. We will make it | |
2271 | * look like selection timeout since that is | |
2272 | * the most common reason for this to occur, | |
2273 | * and it's severe enough. | |
2274 | */ | |
2275 | ||
2276 | cmd->result = DID_NO_CONNECT << 16; | |
2277 | } | |
2278 | break; | |
2279 | ||
2280 | case CMD_DATA_UNDERRUN: /* let mid layer handle it. */ | |
2281 | break; | |
2282 | case CMD_DATA_OVERRUN: | |
f42e81e1 SC |
2283 | dev_warn(&h->pdev->dev, |
2284 | "CDB %16phN data overrun\n", cp->Request.CDB); | |
edd16368 SC |
2285 | break; |
2286 | case CMD_INVALID: { | |
2287 | /* print_bytes(cp, sizeof(*cp), 1, 0); | |
2288 | print_cmd(cp); */ | |
2289 | /* We get CMD_INVALID if you address a non-existent device | |
2290 | * instead of a selection timeout (no response). You will | |
2291 | * see this if you yank out a drive, then try to access it. | |
2292 | * This is kind of a shame because it means that any other | |
2293 | * CMD_INVALID (e.g. driver bug) will get interpreted as a | |
2294 | * missing target. */ | |
2295 | cmd->result = DID_NO_CONNECT << 16; | |
2296 | } | |
2297 | break; | |
2298 | case CMD_PROTOCOL_ERR: | |
256d0eaa | 2299 | cmd->result = DID_ERROR << 16; |
f42e81e1 SC |
2300 | dev_warn(&h->pdev->dev, "CDB %16phN : protocol error\n", |
2301 | cp->Request.CDB); | |
edd16368 SC |
2302 | break; |
2303 | case CMD_HARDWARE_ERR: | |
2304 | cmd->result = DID_ERROR << 16; | |
f42e81e1 SC |
2305 | dev_warn(&h->pdev->dev, "CDB %16phN : hardware error\n", |
2306 | cp->Request.CDB); | |
edd16368 SC |
2307 | break; |
2308 | case CMD_CONNECTION_LOST: | |
2309 | cmd->result = DID_ERROR << 16; | |
f42e81e1 SC |
2310 | dev_warn(&h->pdev->dev, "CDB %16phN : connection lost\n", |
2311 | cp->Request.CDB); | |
edd16368 SC |
2312 | break; |
2313 | case CMD_ABORTED: | |
a58e7e53 WS |
2314 | /* Return now to avoid calling scsi_done(). */ |
2315 | return hpsa_cmd_abort_and_free(h, cp, cmd); | |
edd16368 SC |
2316 | case CMD_ABORT_FAILED: |
2317 | cmd->result = DID_ERROR << 16; | |
f42e81e1 SC |
2318 | dev_warn(&h->pdev->dev, "CDB %16phN : abort failed\n", |
2319 | cp->Request.CDB); | |
edd16368 SC |
2320 | break; |
2321 | case CMD_UNSOLICITED_ABORT: | |
f6e76055 | 2322 | cmd->result = DID_SOFT_ERROR << 16; /* retry the command */ |
f42e81e1 SC |
2323 | dev_warn(&h->pdev->dev, "CDB %16phN : unsolicited abort\n", |
2324 | cp->Request.CDB); | |
edd16368 SC |
2325 | break; |
2326 | case CMD_TIMEOUT: | |
2327 | cmd->result = DID_TIME_OUT << 16; | |
f42e81e1 SC |
2328 | dev_warn(&h->pdev->dev, "CDB %16phN timed out\n", |
2329 | cp->Request.CDB); | |
edd16368 | 2330 | break; |
1d5e2ed0 SC |
2331 | case CMD_UNABORTABLE: |
2332 | cmd->result = DID_ERROR << 16; | |
2333 | dev_warn(&h->pdev->dev, "Command unabortable\n"); | |
2334 | break; | |
9437ac43 SC |
2335 | case CMD_TMF_STATUS: |
2336 | if (hpsa_evaluate_tmf_status(h, cp)) /* TMF failed? */ | |
2337 | cmd->result = DID_ERROR << 16; | |
2338 | break; | |
283b4a9b SC |
2339 | case CMD_IOACCEL_DISABLED: |
2340 | /* This only handles the direct pass-through case since RAID | |
2341 | * offload is handled above. Just attempt a retry. | |
2342 | */ | |
2343 | cmd->result = DID_SOFT_ERROR << 16; | |
2344 | dev_warn(&h->pdev->dev, | |
2345 | "cp %p had HP SSD Smart Path error\n", cp); | |
2346 | break; | |
edd16368 SC |
2347 | default: |
2348 | cmd->result = DID_ERROR << 16; | |
2349 | dev_warn(&h->pdev->dev, "cp %p returned unknown status %x\n", | |
2350 | cp, ei->CommandStatus); | |
2351 | } | |
8a0ff92c WS |
2352 | |
2353 | return hpsa_cmd_free_and_done(h, cp, cmd); | |
edd16368 SC |
2354 | } |
2355 | ||
edd16368 SC |
2356 | static void hpsa_pci_unmap(struct pci_dev *pdev, |
2357 | struct CommandList *c, int sg_used, int data_direction) | |
2358 | { | |
2359 | int i; | |
edd16368 | 2360 | |
50a0decf SC |
2361 | for (i = 0; i < sg_used; i++) |
2362 | pci_unmap_single(pdev, (dma_addr_t) le64_to_cpu(c->SG[i].Addr), | |
2363 | le32_to_cpu(c->SG[i].Len), | |
2364 | data_direction); | |
edd16368 SC |
2365 | } |
2366 | ||
a2dac136 | 2367 | static int hpsa_map_one(struct pci_dev *pdev, |
edd16368 SC |
2368 | struct CommandList *cp, |
2369 | unsigned char *buf, | |
2370 | size_t buflen, | |
2371 | int data_direction) | |
2372 | { | |
01a02ffc | 2373 | u64 addr64; |
edd16368 SC |
2374 | |
2375 | if (buflen == 0 || data_direction == PCI_DMA_NONE) { | |
2376 | cp->Header.SGList = 0; | |
50a0decf | 2377 | cp->Header.SGTotal = cpu_to_le16(0); |
a2dac136 | 2378 | return 0; |
edd16368 SC |
2379 | } |
2380 | ||
50a0decf | 2381 | addr64 = pci_map_single(pdev, buf, buflen, data_direction); |
eceaae18 | 2382 | if (dma_mapping_error(&pdev->dev, addr64)) { |
a2dac136 | 2383 | /* Prevent subsequent unmap of something never mapped */ |
eceaae18 | 2384 | cp->Header.SGList = 0; |
50a0decf | 2385 | cp->Header.SGTotal = cpu_to_le16(0); |
a2dac136 | 2386 | return -1; |
eceaae18 | 2387 | } |
50a0decf SC |
2388 | cp->SG[0].Addr = cpu_to_le64(addr64); |
2389 | cp->SG[0].Len = cpu_to_le32(buflen); | |
2390 | cp->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* we are not chaining */ | |
2391 | cp->Header.SGList = 1; /* no. SGs contig in this cmd */ | |
2392 | cp->Header.SGTotal = cpu_to_le16(1); /* total sgs in cmd list */ | |
a2dac136 | 2393 | return 0; |
edd16368 SC |
2394 | } |
2395 | ||
25163bd5 WS |
2396 | #define NO_TIMEOUT ((unsigned long) -1) |
2397 | #define DEFAULT_TIMEOUT 30000 /* milliseconds */ | |
2398 | static int hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h, | |
2399 | struct CommandList *c, int reply_queue, unsigned long timeout_msecs) | |
edd16368 SC |
2400 | { |
2401 | DECLARE_COMPLETION_ONSTACK(wait); | |
2402 | ||
2403 | c->waiting = &wait; | |
25163bd5 WS |
2404 | __enqueue_cmd_and_start_io(h, c, reply_queue); |
2405 | if (timeout_msecs == NO_TIMEOUT) { | |
2406 | /* TODO: get rid of this no-timeout thing */ | |
2407 | wait_for_completion_io(&wait); | |
2408 | return IO_OK; | |
2409 | } | |
2410 | if (!wait_for_completion_io_timeout(&wait, | |
2411 | msecs_to_jiffies(timeout_msecs))) { | |
2412 | dev_warn(&h->pdev->dev, "Command timed out.\n"); | |
2413 | return -ETIMEDOUT; | |
2414 | } | |
2415 | return IO_OK; | |
2416 | } | |
2417 | ||
2418 | static int hpsa_scsi_do_simple_cmd(struct ctlr_info *h, struct CommandList *c, | |
2419 | int reply_queue, unsigned long timeout_msecs) | |
2420 | { | |
2421 | if (unlikely(lockup_detected(h))) { | |
2422 | c->err_info->CommandStatus = CMD_CTLR_LOCKUP; | |
2423 | return IO_OK; | |
2424 | } | |
2425 | return hpsa_scsi_do_simple_cmd_core(h, c, reply_queue, timeout_msecs); | |
edd16368 SC |
2426 | } |
2427 | ||
094963da SC |
2428 | static u32 lockup_detected(struct ctlr_info *h) |
2429 | { | |
2430 | int cpu; | |
2431 | u32 rc, *lockup_detected; | |
2432 | ||
2433 | cpu = get_cpu(); | |
2434 | lockup_detected = per_cpu_ptr(h->lockup_detected, cpu); | |
2435 | rc = *lockup_detected; | |
2436 | put_cpu(); | |
2437 | return rc; | |
2438 | } | |
2439 | ||
9c2fc160 | 2440 | #define MAX_DRIVER_CMD_RETRIES 25 |
25163bd5 WS |
2441 | static int hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h, |
2442 | struct CommandList *c, int data_direction, unsigned long timeout_msecs) | |
edd16368 | 2443 | { |
9c2fc160 | 2444 | int backoff_time = 10, retry_count = 0; |
25163bd5 | 2445 | int rc; |
edd16368 SC |
2446 | |
2447 | do { | |
7630abd0 | 2448 | memset(c->err_info, 0, sizeof(*c->err_info)); |
25163bd5 WS |
2449 | rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, |
2450 | timeout_msecs); | |
2451 | if (rc) | |
2452 | break; | |
edd16368 | 2453 | retry_count++; |
9c2fc160 SC |
2454 | if (retry_count > 3) { |
2455 | msleep(backoff_time); | |
2456 | if (backoff_time < 1000) | |
2457 | backoff_time *= 2; | |
2458 | } | |
852af20a | 2459 | } while ((check_for_unit_attention(h, c) || |
9c2fc160 SC |
2460 | check_for_busy(h, c)) && |
2461 | retry_count <= MAX_DRIVER_CMD_RETRIES); | |
edd16368 | 2462 | hpsa_pci_unmap(h->pdev, c, 1, data_direction); |
25163bd5 WS |
2463 | if (retry_count > MAX_DRIVER_CMD_RETRIES) |
2464 | rc = -EIO; | |
2465 | return rc; | |
edd16368 SC |
2466 | } |
2467 | ||
d1e8beac SC |
2468 | static void hpsa_print_cmd(struct ctlr_info *h, char *txt, |
2469 | struct CommandList *c) | |
edd16368 | 2470 | { |
d1e8beac SC |
2471 | const u8 *cdb = c->Request.CDB; |
2472 | const u8 *lun = c->Header.LUN.LunAddrBytes; | |
2473 | ||
2474 | dev_warn(&h->pdev->dev, "%s: LUN:%02x%02x%02x%02x%02x%02x%02x%02x" | |
2475 | " CDB:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
2476 | txt, lun[0], lun[1], lun[2], lun[3], | |
2477 | lun[4], lun[5], lun[6], lun[7], | |
2478 | cdb[0], cdb[1], cdb[2], cdb[3], | |
2479 | cdb[4], cdb[5], cdb[6], cdb[7], | |
2480 | cdb[8], cdb[9], cdb[10], cdb[11], | |
2481 | cdb[12], cdb[13], cdb[14], cdb[15]); | |
2482 | } | |
2483 | ||
2484 | static void hpsa_scsi_interpret_error(struct ctlr_info *h, | |
2485 | struct CommandList *cp) | |
2486 | { | |
2487 | const struct ErrorInfo *ei = cp->err_info; | |
edd16368 | 2488 | struct device *d = &cp->h->pdev->dev; |
9437ac43 SC |
2489 | u8 sense_key, asc, ascq; |
2490 | int sense_len; | |
edd16368 | 2491 | |
edd16368 SC |
2492 | switch (ei->CommandStatus) { |
2493 | case CMD_TARGET_STATUS: | |
9437ac43 SC |
2494 | if (ei->SenseLen > sizeof(ei->SenseInfo)) |
2495 | sense_len = sizeof(ei->SenseInfo); | |
2496 | else | |
2497 | sense_len = ei->SenseLen; | |
2498 | decode_sense_data(ei->SenseInfo, sense_len, | |
2499 | &sense_key, &asc, &ascq); | |
d1e8beac SC |
2500 | hpsa_print_cmd(h, "SCSI status", cp); |
2501 | if (ei->ScsiStatus == SAM_STAT_CHECK_CONDITION) | |
9437ac43 SC |
2502 | dev_warn(d, "SCSI Status = 02, Sense key = 0x%02x, ASC = 0x%02x, ASCQ = 0x%02x\n", |
2503 | sense_key, asc, ascq); | |
d1e8beac | 2504 | else |
9437ac43 | 2505 | dev_warn(d, "SCSI Status = 0x%02x\n", ei->ScsiStatus); |
edd16368 SC |
2506 | if (ei->ScsiStatus == 0) |
2507 | dev_warn(d, "SCSI status is abnormally zero. " | |
2508 | "(probably indicates selection timeout " | |
2509 | "reported incorrectly due to a known " | |
2510 | "firmware bug, circa July, 2001.)\n"); | |
2511 | break; | |
2512 | case CMD_DATA_UNDERRUN: /* let mid layer handle it. */ | |
edd16368 SC |
2513 | break; |
2514 | case CMD_DATA_OVERRUN: | |
d1e8beac | 2515 | hpsa_print_cmd(h, "overrun condition", cp); |
edd16368 SC |
2516 | break; |
2517 | case CMD_INVALID: { | |
2518 | /* controller unfortunately reports SCSI passthru's | |
2519 | * to non-existent targets as invalid commands. | |
2520 | */ | |
d1e8beac SC |
2521 | hpsa_print_cmd(h, "invalid command", cp); |
2522 | dev_warn(d, "probably means device no longer present\n"); | |
edd16368 SC |
2523 | } |
2524 | break; | |
2525 | case CMD_PROTOCOL_ERR: | |
d1e8beac | 2526 | hpsa_print_cmd(h, "protocol error", cp); |
edd16368 SC |
2527 | break; |
2528 | case CMD_HARDWARE_ERR: | |
d1e8beac | 2529 | hpsa_print_cmd(h, "hardware error", cp); |
edd16368 SC |
2530 | break; |
2531 | case CMD_CONNECTION_LOST: | |
d1e8beac | 2532 | hpsa_print_cmd(h, "connection lost", cp); |
edd16368 SC |
2533 | break; |
2534 | case CMD_ABORTED: | |
d1e8beac | 2535 | hpsa_print_cmd(h, "aborted", cp); |
edd16368 SC |
2536 | break; |
2537 | case CMD_ABORT_FAILED: | |
d1e8beac | 2538 | hpsa_print_cmd(h, "abort failed", cp); |
edd16368 SC |
2539 | break; |
2540 | case CMD_UNSOLICITED_ABORT: | |
d1e8beac | 2541 | hpsa_print_cmd(h, "unsolicited abort", cp); |
edd16368 SC |
2542 | break; |
2543 | case CMD_TIMEOUT: | |
d1e8beac | 2544 | hpsa_print_cmd(h, "timed out", cp); |
edd16368 | 2545 | break; |
1d5e2ed0 | 2546 | case CMD_UNABORTABLE: |
d1e8beac | 2547 | hpsa_print_cmd(h, "unabortable", cp); |
1d5e2ed0 | 2548 | break; |
25163bd5 WS |
2549 | case CMD_CTLR_LOCKUP: |
2550 | hpsa_print_cmd(h, "controller lockup detected", cp); | |
2551 | break; | |
edd16368 | 2552 | default: |
d1e8beac SC |
2553 | hpsa_print_cmd(h, "unknown status", cp); |
2554 | dev_warn(d, "Unknown command status %x\n", | |
edd16368 SC |
2555 | ei->CommandStatus); |
2556 | } | |
2557 | } | |
2558 | ||
2559 | static int hpsa_scsi_do_inquiry(struct ctlr_info *h, unsigned char *scsi3addr, | |
b7bb24eb | 2560 | u16 page, unsigned char *buf, |
edd16368 SC |
2561 | unsigned char bufsize) |
2562 | { | |
2563 | int rc = IO_OK; | |
2564 | struct CommandList *c; | |
2565 | struct ErrorInfo *ei; | |
2566 | ||
45fcb86e | 2567 | c = cmd_alloc(h); |
edd16368 | 2568 | |
a2dac136 SC |
2569 | if (fill_cmd(c, HPSA_INQUIRY, h, buf, bufsize, |
2570 | page, scsi3addr, TYPE_CMD)) { | |
2571 | rc = -1; | |
2572 | goto out; | |
2573 | } | |
25163bd5 WS |
2574 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
2575 | PCI_DMA_FROMDEVICE, NO_TIMEOUT); | |
2576 | if (rc) | |
2577 | goto out; | |
edd16368 SC |
2578 | ei = c->err_info; |
2579 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
d1e8beac | 2580 | hpsa_scsi_interpret_error(h, c); |
edd16368 SC |
2581 | rc = -1; |
2582 | } | |
a2dac136 | 2583 | out: |
45fcb86e | 2584 | cmd_free(h, c); |
edd16368 SC |
2585 | return rc; |
2586 | } | |
2587 | ||
316b221a SC |
2588 | static int hpsa_bmic_ctrl_mode_sense(struct ctlr_info *h, |
2589 | unsigned char *scsi3addr, unsigned char page, | |
2590 | struct bmic_controller_parameters *buf, size_t bufsize) | |
2591 | { | |
2592 | int rc = IO_OK; | |
2593 | struct CommandList *c; | |
2594 | struct ErrorInfo *ei; | |
2595 | ||
45fcb86e | 2596 | c = cmd_alloc(h); |
316b221a SC |
2597 | if (fill_cmd(c, BMIC_SENSE_CONTROLLER_PARAMETERS, h, buf, bufsize, |
2598 | page, scsi3addr, TYPE_CMD)) { | |
2599 | rc = -1; | |
2600 | goto out; | |
2601 | } | |
25163bd5 WS |
2602 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
2603 | PCI_DMA_FROMDEVICE, NO_TIMEOUT); | |
2604 | if (rc) | |
2605 | goto out; | |
316b221a SC |
2606 | ei = c->err_info; |
2607 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
2608 | hpsa_scsi_interpret_error(h, c); | |
2609 | rc = -1; | |
2610 | } | |
2611 | out: | |
45fcb86e | 2612 | cmd_free(h, c); |
316b221a | 2613 | return rc; |
bf43caf3 | 2614 | } |
316b221a | 2615 | |
bf711ac6 | 2616 | static int hpsa_send_reset(struct ctlr_info *h, unsigned char *scsi3addr, |
25163bd5 | 2617 | u8 reset_type, int reply_queue) |
edd16368 SC |
2618 | { |
2619 | int rc = IO_OK; | |
2620 | struct CommandList *c; | |
2621 | struct ErrorInfo *ei; | |
2622 | ||
45fcb86e | 2623 | c = cmd_alloc(h); |
edd16368 | 2624 | |
edd16368 | 2625 | |
a2dac136 | 2626 | /* fill_cmd can't fail here, no data buffer to map. */ |
bf711ac6 ST |
2627 | (void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0, |
2628 | scsi3addr, TYPE_MSG); | |
2629 | c->Request.CDB[1] = reset_type; /* fill_cmd defaults to LUN reset */ | |
25163bd5 WS |
2630 | rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT); |
2631 | if (rc) { | |
2632 | dev_warn(&h->pdev->dev, "Failed to send reset command\n"); | |
2633 | goto out; | |
2634 | } | |
edd16368 SC |
2635 | /* no unmap needed here because no data xfer. */ |
2636 | ||
2637 | ei = c->err_info; | |
2638 | if (ei->CommandStatus != 0) { | |
d1e8beac | 2639 | hpsa_scsi_interpret_error(h, c); |
edd16368 SC |
2640 | rc = -1; |
2641 | } | |
25163bd5 | 2642 | out: |
45fcb86e | 2643 | cmd_free(h, c); |
edd16368 SC |
2644 | return rc; |
2645 | } | |
2646 | ||
d604f533 WS |
2647 | static bool hpsa_cmd_dev_match(struct ctlr_info *h, struct CommandList *c, |
2648 | struct hpsa_scsi_dev_t *dev, | |
2649 | unsigned char *scsi3addr) | |
2650 | { | |
2651 | int i; | |
2652 | bool match = false; | |
2653 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
2654 | struct hpsa_tmf_struct *ac = (struct hpsa_tmf_struct *) c2; | |
2655 | ||
2656 | if (hpsa_is_cmd_idle(c)) | |
2657 | return false; | |
2658 | ||
2659 | switch (c->cmd_type) { | |
2660 | case CMD_SCSI: | |
2661 | case CMD_IOCTL_PEND: | |
2662 | match = !memcmp(scsi3addr, &c->Header.LUN.LunAddrBytes, | |
2663 | sizeof(c->Header.LUN.LunAddrBytes)); | |
2664 | break; | |
2665 | ||
2666 | case CMD_IOACCEL1: | |
2667 | case CMD_IOACCEL2: | |
2668 | if (c->phys_disk == dev) { | |
2669 | /* HBA mode match */ | |
2670 | match = true; | |
2671 | } else { | |
2672 | /* Possible RAID mode -- check each phys dev. */ | |
2673 | /* FIXME: Do we need to take out a lock here? If | |
2674 | * so, we could just call hpsa_get_pdisk_of_ioaccel2() | |
2675 | * instead. */ | |
2676 | for (i = 0; i < dev->nphysical_disks && !match; i++) { | |
2677 | /* FIXME: an alternate test might be | |
2678 | * | |
2679 | * match = dev->phys_disk[i]->ioaccel_handle | |
2680 | * == c2->scsi_nexus; */ | |
2681 | match = dev->phys_disk[i] == c->phys_disk; | |
2682 | } | |
2683 | } | |
2684 | break; | |
2685 | ||
2686 | case IOACCEL2_TMF: | |
2687 | for (i = 0; i < dev->nphysical_disks && !match; i++) { | |
2688 | match = dev->phys_disk[i]->ioaccel_handle == | |
2689 | le32_to_cpu(ac->it_nexus); | |
2690 | } | |
2691 | break; | |
2692 | ||
2693 | case 0: /* The command is in the middle of being initialized. */ | |
2694 | match = false; | |
2695 | break; | |
2696 | ||
2697 | default: | |
2698 | dev_err(&h->pdev->dev, "unexpected cmd_type: %d\n", | |
2699 | c->cmd_type); | |
2700 | BUG(); | |
2701 | } | |
2702 | ||
2703 | return match; | |
2704 | } | |
2705 | ||
2706 | static int hpsa_do_reset(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev, | |
2707 | unsigned char *scsi3addr, u8 reset_type, int reply_queue) | |
2708 | { | |
2709 | int i; | |
2710 | int rc = 0; | |
2711 | ||
2712 | /* We can really only handle one reset at a time */ | |
2713 | if (mutex_lock_interruptible(&h->reset_mutex) == -EINTR) { | |
2714 | dev_warn(&h->pdev->dev, "concurrent reset wait interrupted.\n"); | |
2715 | return -EINTR; | |
2716 | } | |
2717 | ||
2718 | BUG_ON(atomic_read(&dev->reset_cmds_out) != 0); | |
2719 | ||
2720 | for (i = 0; i < h->nr_cmds; i++) { | |
2721 | struct CommandList *c = h->cmd_pool + i; | |
2722 | int refcount = atomic_inc_return(&c->refcount); | |
2723 | ||
2724 | if (refcount > 1 && hpsa_cmd_dev_match(h, c, dev, scsi3addr)) { | |
2725 | unsigned long flags; | |
2726 | ||
2727 | /* | |
2728 | * Mark the target command as having a reset pending, | |
2729 | * then lock a lock so that the command cannot complete | |
2730 | * while we're considering it. If the command is not | |
2731 | * idle then count it; otherwise revoke the event. | |
2732 | */ | |
2733 | c->reset_pending = dev; | |
2734 | spin_lock_irqsave(&h->lock, flags); /* Implied MB */ | |
2735 | if (!hpsa_is_cmd_idle(c)) | |
2736 | atomic_inc(&dev->reset_cmds_out); | |
2737 | else | |
2738 | c->reset_pending = NULL; | |
2739 | spin_unlock_irqrestore(&h->lock, flags); | |
2740 | } | |
2741 | ||
2742 | cmd_free(h, c); | |
2743 | } | |
2744 | ||
2745 | rc = hpsa_send_reset(h, scsi3addr, reset_type, reply_queue); | |
2746 | if (!rc) | |
2747 | wait_event(h->event_sync_wait_queue, | |
2748 | atomic_read(&dev->reset_cmds_out) == 0 || | |
2749 | lockup_detected(h)); | |
2750 | ||
2751 | if (unlikely(lockup_detected(h))) { | |
77678d3a DB |
2752 | dev_warn(&h->pdev->dev, |
2753 | "Controller lockup detected during reset wait\n"); | |
2754 | rc = -ENODEV; | |
2755 | } | |
d604f533 WS |
2756 | |
2757 | if (unlikely(rc)) | |
2758 | atomic_set(&dev->reset_cmds_out, 0); | |
2759 | ||
2760 | mutex_unlock(&h->reset_mutex); | |
2761 | return rc; | |
2762 | } | |
2763 | ||
edd16368 SC |
2764 | static void hpsa_get_raid_level(struct ctlr_info *h, |
2765 | unsigned char *scsi3addr, unsigned char *raid_level) | |
2766 | { | |
2767 | int rc; | |
2768 | unsigned char *buf; | |
2769 | ||
2770 | *raid_level = RAID_UNKNOWN; | |
2771 | buf = kzalloc(64, GFP_KERNEL); | |
2772 | if (!buf) | |
2773 | return; | |
b7bb24eb | 2774 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | 0xC1, buf, 64); |
edd16368 SC |
2775 | if (rc == 0) |
2776 | *raid_level = buf[8]; | |
2777 | if (*raid_level > RAID_UNKNOWN) | |
2778 | *raid_level = RAID_UNKNOWN; | |
2779 | kfree(buf); | |
2780 | return; | |
2781 | } | |
2782 | ||
283b4a9b SC |
2783 | #define HPSA_MAP_DEBUG |
2784 | #ifdef HPSA_MAP_DEBUG | |
2785 | static void hpsa_debug_map_buff(struct ctlr_info *h, int rc, | |
2786 | struct raid_map_data *map_buff) | |
2787 | { | |
2788 | struct raid_map_disk_data *dd = &map_buff->data[0]; | |
2789 | int map, row, col; | |
2790 | u16 map_cnt, row_cnt, disks_per_row; | |
2791 | ||
2792 | if (rc != 0) | |
2793 | return; | |
2794 | ||
2ba8bfc8 SC |
2795 | /* Show details only if debugging has been activated. */ |
2796 | if (h->raid_offload_debug < 2) | |
2797 | return; | |
2798 | ||
283b4a9b SC |
2799 | dev_info(&h->pdev->dev, "structure_size = %u\n", |
2800 | le32_to_cpu(map_buff->structure_size)); | |
2801 | dev_info(&h->pdev->dev, "volume_blk_size = %u\n", | |
2802 | le32_to_cpu(map_buff->volume_blk_size)); | |
2803 | dev_info(&h->pdev->dev, "volume_blk_cnt = 0x%llx\n", | |
2804 | le64_to_cpu(map_buff->volume_blk_cnt)); | |
2805 | dev_info(&h->pdev->dev, "physicalBlockShift = %u\n", | |
2806 | map_buff->phys_blk_shift); | |
2807 | dev_info(&h->pdev->dev, "parity_rotation_shift = %u\n", | |
2808 | map_buff->parity_rotation_shift); | |
2809 | dev_info(&h->pdev->dev, "strip_size = %u\n", | |
2810 | le16_to_cpu(map_buff->strip_size)); | |
2811 | dev_info(&h->pdev->dev, "disk_starting_blk = 0x%llx\n", | |
2812 | le64_to_cpu(map_buff->disk_starting_blk)); | |
2813 | dev_info(&h->pdev->dev, "disk_blk_cnt = 0x%llx\n", | |
2814 | le64_to_cpu(map_buff->disk_blk_cnt)); | |
2815 | dev_info(&h->pdev->dev, "data_disks_per_row = %u\n", | |
2816 | le16_to_cpu(map_buff->data_disks_per_row)); | |
2817 | dev_info(&h->pdev->dev, "metadata_disks_per_row = %u\n", | |
2818 | le16_to_cpu(map_buff->metadata_disks_per_row)); | |
2819 | dev_info(&h->pdev->dev, "row_cnt = %u\n", | |
2820 | le16_to_cpu(map_buff->row_cnt)); | |
2821 | dev_info(&h->pdev->dev, "layout_map_count = %u\n", | |
2822 | le16_to_cpu(map_buff->layout_map_count)); | |
2b08b3e9 | 2823 | dev_info(&h->pdev->dev, "flags = 0x%x\n", |
dd0e19f3 | 2824 | le16_to_cpu(map_buff->flags)); |
2b08b3e9 DB |
2825 | dev_info(&h->pdev->dev, "encrypytion = %s\n", |
2826 | le16_to_cpu(map_buff->flags) & | |
2827 | RAID_MAP_FLAG_ENCRYPT_ON ? "ON" : "OFF"); | |
dd0e19f3 ST |
2828 | dev_info(&h->pdev->dev, "dekindex = %u\n", |
2829 | le16_to_cpu(map_buff->dekindex)); | |
283b4a9b SC |
2830 | map_cnt = le16_to_cpu(map_buff->layout_map_count); |
2831 | for (map = 0; map < map_cnt; map++) { | |
2832 | dev_info(&h->pdev->dev, "Map%u:\n", map); | |
2833 | row_cnt = le16_to_cpu(map_buff->row_cnt); | |
2834 | for (row = 0; row < row_cnt; row++) { | |
2835 | dev_info(&h->pdev->dev, " Row%u:\n", row); | |
2836 | disks_per_row = | |
2837 | le16_to_cpu(map_buff->data_disks_per_row); | |
2838 | for (col = 0; col < disks_per_row; col++, dd++) | |
2839 | dev_info(&h->pdev->dev, | |
2840 | " D%02u: h=0x%04x xor=%u,%u\n", | |
2841 | col, dd->ioaccel_handle, | |
2842 | dd->xor_mult[0], dd->xor_mult[1]); | |
2843 | disks_per_row = | |
2844 | le16_to_cpu(map_buff->metadata_disks_per_row); | |
2845 | for (col = 0; col < disks_per_row; col++, dd++) | |
2846 | dev_info(&h->pdev->dev, | |
2847 | " M%02u: h=0x%04x xor=%u,%u\n", | |
2848 | col, dd->ioaccel_handle, | |
2849 | dd->xor_mult[0], dd->xor_mult[1]); | |
2850 | } | |
2851 | } | |
2852 | } | |
2853 | #else | |
2854 | static void hpsa_debug_map_buff(__attribute__((unused)) struct ctlr_info *h, | |
2855 | __attribute__((unused)) int rc, | |
2856 | __attribute__((unused)) struct raid_map_data *map_buff) | |
2857 | { | |
2858 | } | |
2859 | #endif | |
2860 | ||
2861 | static int hpsa_get_raid_map(struct ctlr_info *h, | |
2862 | unsigned char *scsi3addr, struct hpsa_scsi_dev_t *this_device) | |
2863 | { | |
2864 | int rc = 0; | |
2865 | struct CommandList *c; | |
2866 | struct ErrorInfo *ei; | |
2867 | ||
45fcb86e | 2868 | c = cmd_alloc(h); |
bf43caf3 | 2869 | |
283b4a9b SC |
2870 | if (fill_cmd(c, HPSA_GET_RAID_MAP, h, &this_device->raid_map, |
2871 | sizeof(this_device->raid_map), 0, | |
2872 | scsi3addr, TYPE_CMD)) { | |
2dd02d74 RE |
2873 | dev_warn(&h->pdev->dev, "hpsa_get_raid_map fill_cmd failed\n"); |
2874 | cmd_free(h, c); | |
2875 | return -1; | |
283b4a9b | 2876 | } |
25163bd5 WS |
2877 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
2878 | PCI_DMA_FROMDEVICE, NO_TIMEOUT); | |
2879 | if (rc) | |
2880 | goto out; | |
283b4a9b SC |
2881 | ei = c->err_info; |
2882 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
d1e8beac | 2883 | hpsa_scsi_interpret_error(h, c); |
25163bd5 WS |
2884 | rc = -1; |
2885 | goto out; | |
283b4a9b | 2886 | } |
45fcb86e | 2887 | cmd_free(h, c); |
283b4a9b SC |
2888 | |
2889 | /* @todo in the future, dynamically allocate RAID map memory */ | |
2890 | if (le32_to_cpu(this_device->raid_map.structure_size) > | |
2891 | sizeof(this_device->raid_map)) { | |
2892 | dev_warn(&h->pdev->dev, "RAID map size is too large!\n"); | |
2893 | rc = -1; | |
2894 | } | |
2895 | hpsa_debug_map_buff(h, rc, &this_device->raid_map); | |
2896 | return rc; | |
25163bd5 WS |
2897 | out: |
2898 | cmd_free(h, c); | |
2899 | return rc; | |
283b4a9b SC |
2900 | } |
2901 | ||
03383736 DB |
2902 | static int hpsa_bmic_id_physical_device(struct ctlr_info *h, |
2903 | unsigned char scsi3addr[], u16 bmic_device_index, | |
2904 | struct bmic_identify_physical_device *buf, size_t bufsize) | |
2905 | { | |
2906 | int rc = IO_OK; | |
2907 | struct CommandList *c; | |
2908 | struct ErrorInfo *ei; | |
2909 | ||
2910 | c = cmd_alloc(h); | |
2911 | rc = fill_cmd(c, BMIC_IDENTIFY_PHYSICAL_DEVICE, h, buf, bufsize, | |
2912 | 0, RAID_CTLR_LUNID, TYPE_CMD); | |
2913 | if (rc) | |
2914 | goto out; | |
2915 | ||
2916 | c->Request.CDB[2] = bmic_device_index & 0xff; | |
2917 | c->Request.CDB[9] = (bmic_device_index >> 8) & 0xff; | |
2918 | ||
25163bd5 WS |
2919 | hpsa_scsi_do_simple_cmd_with_retry(h, c, PCI_DMA_FROMDEVICE, |
2920 | NO_TIMEOUT); | |
03383736 DB |
2921 | ei = c->err_info; |
2922 | if (ei->CommandStatus != 0 && ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
2923 | hpsa_scsi_interpret_error(h, c); | |
2924 | rc = -1; | |
2925 | } | |
2926 | out: | |
2927 | cmd_free(h, c); | |
2928 | return rc; | |
2929 | } | |
2930 | ||
1b70150a SC |
2931 | static int hpsa_vpd_page_supported(struct ctlr_info *h, |
2932 | unsigned char scsi3addr[], u8 page) | |
2933 | { | |
2934 | int rc; | |
2935 | int i; | |
2936 | int pages; | |
2937 | unsigned char *buf, bufsize; | |
2938 | ||
2939 | buf = kzalloc(256, GFP_KERNEL); | |
2940 | if (!buf) | |
2941 | return 0; | |
2942 | ||
2943 | /* Get the size of the page list first */ | |
2944 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, | |
2945 | VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES, | |
2946 | buf, HPSA_VPD_HEADER_SZ); | |
2947 | if (rc != 0) | |
2948 | goto exit_unsupported; | |
2949 | pages = buf[3]; | |
2950 | if ((pages + HPSA_VPD_HEADER_SZ) <= 255) | |
2951 | bufsize = pages + HPSA_VPD_HEADER_SZ; | |
2952 | else | |
2953 | bufsize = 255; | |
2954 | ||
2955 | /* Get the whole VPD page list */ | |
2956 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, | |
2957 | VPD_PAGE | HPSA_VPD_SUPPORTED_PAGES, | |
2958 | buf, bufsize); | |
2959 | if (rc != 0) | |
2960 | goto exit_unsupported; | |
2961 | ||
2962 | pages = buf[3]; | |
2963 | for (i = 1; i <= pages; i++) | |
2964 | if (buf[3 + i] == page) | |
2965 | goto exit_supported; | |
2966 | exit_unsupported: | |
2967 | kfree(buf); | |
2968 | return 0; | |
2969 | exit_supported: | |
2970 | kfree(buf); | |
2971 | return 1; | |
2972 | } | |
2973 | ||
283b4a9b SC |
2974 | static void hpsa_get_ioaccel_status(struct ctlr_info *h, |
2975 | unsigned char *scsi3addr, struct hpsa_scsi_dev_t *this_device) | |
2976 | { | |
2977 | int rc; | |
2978 | unsigned char *buf; | |
2979 | u8 ioaccel_status; | |
2980 | ||
2981 | this_device->offload_config = 0; | |
2982 | this_device->offload_enabled = 0; | |
41ce4c35 | 2983 | this_device->offload_to_be_enabled = 0; |
283b4a9b SC |
2984 | |
2985 | buf = kzalloc(64, GFP_KERNEL); | |
2986 | if (!buf) | |
2987 | return; | |
1b70150a SC |
2988 | if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_IOACCEL_STATUS)) |
2989 | goto out; | |
283b4a9b | 2990 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, |
b7bb24eb | 2991 | VPD_PAGE | HPSA_VPD_LV_IOACCEL_STATUS, buf, 64); |
283b4a9b SC |
2992 | if (rc != 0) |
2993 | goto out; | |
2994 | ||
2995 | #define IOACCEL_STATUS_BYTE 4 | |
2996 | #define OFFLOAD_CONFIGURED_BIT 0x01 | |
2997 | #define OFFLOAD_ENABLED_BIT 0x02 | |
2998 | ioaccel_status = buf[IOACCEL_STATUS_BYTE]; | |
2999 | this_device->offload_config = | |
3000 | !!(ioaccel_status & OFFLOAD_CONFIGURED_BIT); | |
3001 | if (this_device->offload_config) { | |
3002 | this_device->offload_enabled = | |
3003 | !!(ioaccel_status & OFFLOAD_ENABLED_BIT); | |
3004 | if (hpsa_get_raid_map(h, scsi3addr, this_device)) | |
3005 | this_device->offload_enabled = 0; | |
3006 | } | |
41ce4c35 | 3007 | this_device->offload_to_be_enabled = this_device->offload_enabled; |
283b4a9b SC |
3008 | out: |
3009 | kfree(buf); | |
3010 | return; | |
3011 | } | |
3012 | ||
edd16368 SC |
3013 | /* Get the device id from inquiry page 0x83 */ |
3014 | static int hpsa_get_device_id(struct ctlr_info *h, unsigned char *scsi3addr, | |
3015 | unsigned char *device_id, int buflen) | |
3016 | { | |
3017 | int rc; | |
3018 | unsigned char *buf; | |
3019 | ||
3020 | if (buflen > 16) | |
3021 | buflen = 16; | |
3022 | buf = kzalloc(64, GFP_KERNEL); | |
3023 | if (!buf) | |
a84d794d | 3024 | return -ENOMEM; |
b7bb24eb | 3025 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | 0x83, buf, 64); |
edd16368 SC |
3026 | if (rc == 0) |
3027 | memcpy(device_id, &buf[8], buflen); | |
3028 | kfree(buf); | |
3029 | return rc != 0; | |
3030 | } | |
3031 | ||
3032 | static int hpsa_scsi_do_report_luns(struct ctlr_info *h, int logical, | |
03383736 | 3033 | void *buf, int bufsize, |
edd16368 SC |
3034 | int extended_response) |
3035 | { | |
3036 | int rc = IO_OK; | |
3037 | struct CommandList *c; | |
3038 | unsigned char scsi3addr[8]; | |
3039 | struct ErrorInfo *ei; | |
3040 | ||
45fcb86e | 3041 | c = cmd_alloc(h); |
bf43caf3 | 3042 | |
e89c0ae7 SC |
3043 | /* address the controller */ |
3044 | memset(scsi3addr, 0, sizeof(scsi3addr)); | |
a2dac136 SC |
3045 | if (fill_cmd(c, logical ? HPSA_REPORT_LOG : HPSA_REPORT_PHYS, h, |
3046 | buf, bufsize, 0, scsi3addr, TYPE_CMD)) { | |
3047 | rc = -1; | |
3048 | goto out; | |
3049 | } | |
edd16368 SC |
3050 | if (extended_response) |
3051 | c->Request.CDB[1] = extended_response; | |
25163bd5 WS |
3052 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
3053 | PCI_DMA_FROMDEVICE, NO_TIMEOUT); | |
3054 | if (rc) | |
3055 | goto out; | |
edd16368 SC |
3056 | ei = c->err_info; |
3057 | if (ei->CommandStatus != 0 && | |
3058 | ei->CommandStatus != CMD_DATA_UNDERRUN) { | |
d1e8beac | 3059 | hpsa_scsi_interpret_error(h, c); |
edd16368 | 3060 | rc = -1; |
283b4a9b | 3061 | } else { |
03383736 DB |
3062 | struct ReportLUNdata *rld = buf; |
3063 | ||
3064 | if (rld->extended_response_flag != extended_response) { | |
283b4a9b SC |
3065 | dev_err(&h->pdev->dev, |
3066 | "report luns requested format %u, got %u\n", | |
3067 | extended_response, | |
03383736 | 3068 | rld->extended_response_flag); |
283b4a9b SC |
3069 | rc = -1; |
3070 | } | |
edd16368 | 3071 | } |
a2dac136 | 3072 | out: |
45fcb86e | 3073 | cmd_free(h, c); |
edd16368 SC |
3074 | return rc; |
3075 | } | |
3076 | ||
3077 | static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info *h, | |
03383736 | 3078 | struct ReportExtendedLUNdata *buf, int bufsize) |
edd16368 | 3079 | { |
03383736 DB |
3080 | return hpsa_scsi_do_report_luns(h, 0, buf, bufsize, |
3081 | HPSA_REPORT_PHYS_EXTENDED); | |
edd16368 SC |
3082 | } |
3083 | ||
3084 | static inline int hpsa_scsi_do_report_log_luns(struct ctlr_info *h, | |
3085 | struct ReportLUNdata *buf, int bufsize) | |
3086 | { | |
3087 | return hpsa_scsi_do_report_luns(h, 1, buf, bufsize, 0); | |
3088 | } | |
3089 | ||
3090 | static inline void hpsa_set_bus_target_lun(struct hpsa_scsi_dev_t *device, | |
3091 | int bus, int target, int lun) | |
3092 | { | |
3093 | device->bus = bus; | |
3094 | device->target = target; | |
3095 | device->lun = lun; | |
3096 | } | |
3097 | ||
9846590e SC |
3098 | /* Use VPD inquiry to get details of volume status */ |
3099 | static int hpsa_get_volume_status(struct ctlr_info *h, | |
3100 | unsigned char scsi3addr[]) | |
3101 | { | |
3102 | int rc; | |
3103 | int status; | |
3104 | int size; | |
3105 | unsigned char *buf; | |
3106 | ||
3107 | buf = kzalloc(64, GFP_KERNEL); | |
3108 | if (!buf) | |
3109 | return HPSA_VPD_LV_STATUS_UNSUPPORTED; | |
3110 | ||
3111 | /* Does controller have VPD for logical volume status? */ | |
24a4b078 | 3112 | if (!hpsa_vpd_page_supported(h, scsi3addr, HPSA_VPD_LV_STATUS)) |
9846590e | 3113 | goto exit_failed; |
9846590e SC |
3114 | |
3115 | /* Get the size of the VPD return buffer */ | |
3116 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | HPSA_VPD_LV_STATUS, | |
3117 | buf, HPSA_VPD_HEADER_SZ); | |
24a4b078 | 3118 | if (rc != 0) |
9846590e | 3119 | goto exit_failed; |
9846590e SC |
3120 | size = buf[3]; |
3121 | ||
3122 | /* Now get the whole VPD buffer */ | |
3123 | rc = hpsa_scsi_do_inquiry(h, scsi3addr, VPD_PAGE | HPSA_VPD_LV_STATUS, | |
3124 | buf, size + HPSA_VPD_HEADER_SZ); | |
24a4b078 | 3125 | if (rc != 0) |
9846590e | 3126 | goto exit_failed; |
9846590e SC |
3127 | status = buf[4]; /* status byte */ |
3128 | ||
3129 | kfree(buf); | |
3130 | return status; | |
3131 | exit_failed: | |
3132 | kfree(buf); | |
3133 | return HPSA_VPD_LV_STATUS_UNSUPPORTED; | |
3134 | } | |
3135 | ||
3136 | /* Determine offline status of a volume. | |
3137 | * Return either: | |
3138 | * 0 (not offline) | |
67955ba3 | 3139 | * 0xff (offline for unknown reasons) |
9846590e SC |
3140 | * # (integer code indicating one of several NOT READY states |
3141 | * describing why a volume is to be kept offline) | |
3142 | */ | |
67955ba3 | 3143 | static int hpsa_volume_offline(struct ctlr_info *h, |
9846590e SC |
3144 | unsigned char scsi3addr[]) |
3145 | { | |
3146 | struct CommandList *c; | |
9437ac43 SC |
3147 | unsigned char *sense; |
3148 | u8 sense_key, asc, ascq; | |
3149 | int sense_len; | |
25163bd5 | 3150 | int rc, ldstat = 0; |
9846590e SC |
3151 | u16 cmd_status; |
3152 | u8 scsi_status; | |
3153 | #define ASC_LUN_NOT_READY 0x04 | |
3154 | #define ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS 0x04 | |
3155 | #define ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ 0x02 | |
3156 | ||
3157 | c = cmd_alloc(h); | |
bf43caf3 | 3158 | |
9846590e | 3159 | (void) fill_cmd(c, TEST_UNIT_READY, h, NULL, 0, 0, scsi3addr, TYPE_CMD); |
25163bd5 WS |
3160 | rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); |
3161 | if (rc) { | |
3162 | cmd_free(h, c); | |
3163 | return 0; | |
3164 | } | |
9846590e | 3165 | sense = c->err_info->SenseInfo; |
9437ac43 SC |
3166 | if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo)) |
3167 | sense_len = sizeof(c->err_info->SenseInfo); | |
3168 | else | |
3169 | sense_len = c->err_info->SenseLen; | |
3170 | decode_sense_data(sense, sense_len, &sense_key, &asc, &ascq); | |
9846590e SC |
3171 | cmd_status = c->err_info->CommandStatus; |
3172 | scsi_status = c->err_info->ScsiStatus; | |
3173 | cmd_free(h, c); | |
3174 | /* Is the volume 'not ready'? */ | |
3175 | if (cmd_status != CMD_TARGET_STATUS || | |
3176 | scsi_status != SAM_STAT_CHECK_CONDITION || | |
3177 | sense_key != NOT_READY || | |
3178 | asc != ASC_LUN_NOT_READY) { | |
3179 | return 0; | |
3180 | } | |
3181 | ||
3182 | /* Determine the reason for not ready state */ | |
3183 | ldstat = hpsa_get_volume_status(h, scsi3addr); | |
3184 | ||
3185 | /* Keep volume offline in certain cases: */ | |
3186 | switch (ldstat) { | |
3187 | case HPSA_LV_UNDERGOING_ERASE: | |
3188 | case HPSA_LV_UNDERGOING_RPI: | |
3189 | case HPSA_LV_PENDING_RPI: | |
3190 | case HPSA_LV_ENCRYPTED_NO_KEY: | |
3191 | case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER: | |
3192 | case HPSA_LV_UNDERGOING_ENCRYPTION: | |
3193 | case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING: | |
3194 | case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER: | |
3195 | return ldstat; | |
3196 | case HPSA_VPD_LV_STATUS_UNSUPPORTED: | |
3197 | /* If VPD status page isn't available, | |
3198 | * use ASC/ASCQ to determine state | |
3199 | */ | |
3200 | if ((ascq == ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS) || | |
3201 | (ascq == ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ)) | |
3202 | return ldstat; | |
3203 | break; | |
3204 | default: | |
3205 | break; | |
3206 | } | |
3207 | return 0; | |
3208 | } | |
3209 | ||
9b5c48c2 SC |
3210 | /* |
3211 | * Find out if a logical device supports aborts by simply trying one. | |
3212 | * Smart Array may claim not to support aborts on logical drives, but | |
3213 | * if a MSA2000 * is connected, the drives on that will be presented | |
3214 | * by the Smart Array as logical drives, and aborts may be sent to | |
3215 | * those devices successfully. So the simplest way to find out is | |
3216 | * to simply try an abort and see how the device responds. | |
3217 | */ | |
3218 | static int hpsa_device_supports_aborts(struct ctlr_info *h, | |
3219 | unsigned char *scsi3addr) | |
3220 | { | |
3221 | struct CommandList *c; | |
3222 | struct ErrorInfo *ei; | |
3223 | int rc = 0; | |
3224 | ||
3225 | u64 tag = (u64) -1; /* bogus tag */ | |
3226 | ||
3227 | /* Assume that physical devices support aborts */ | |
3228 | if (!is_logical_dev_addr_mode(scsi3addr)) | |
3229 | return 1; | |
3230 | ||
3231 | c = cmd_alloc(h); | |
bf43caf3 | 3232 | |
9b5c48c2 SC |
3233 | (void) fill_cmd(c, HPSA_ABORT_MSG, h, &tag, 0, 0, scsi3addr, TYPE_MSG); |
3234 | (void) hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); | |
3235 | /* no unmap needed here because no data xfer. */ | |
3236 | ei = c->err_info; | |
3237 | switch (ei->CommandStatus) { | |
3238 | case CMD_INVALID: | |
3239 | rc = 0; | |
3240 | break; | |
3241 | case CMD_UNABORTABLE: | |
3242 | case CMD_ABORT_FAILED: | |
3243 | rc = 1; | |
3244 | break; | |
9437ac43 SC |
3245 | case CMD_TMF_STATUS: |
3246 | rc = hpsa_evaluate_tmf_status(h, c); | |
3247 | break; | |
9b5c48c2 SC |
3248 | default: |
3249 | rc = 0; | |
3250 | break; | |
3251 | } | |
3252 | cmd_free(h, c); | |
3253 | return rc; | |
3254 | } | |
3255 | ||
edd16368 | 3256 | static int hpsa_update_device_info(struct ctlr_info *h, |
0b0e1d6c SC |
3257 | unsigned char scsi3addr[], struct hpsa_scsi_dev_t *this_device, |
3258 | unsigned char *is_OBDR_device) | |
edd16368 | 3259 | { |
0b0e1d6c SC |
3260 | |
3261 | #define OBDR_SIG_OFFSET 43 | |
3262 | #define OBDR_TAPE_SIG "$DR-10" | |
3263 | #define OBDR_SIG_LEN (sizeof(OBDR_TAPE_SIG) - 1) | |
3264 | #define OBDR_TAPE_INQ_SIZE (OBDR_SIG_OFFSET + OBDR_SIG_LEN) | |
3265 | ||
ea6d3bc3 | 3266 | unsigned char *inq_buff; |
0b0e1d6c | 3267 | unsigned char *obdr_sig; |
edd16368 | 3268 | |
ea6d3bc3 | 3269 | inq_buff = kzalloc(OBDR_TAPE_INQ_SIZE, GFP_KERNEL); |
edd16368 SC |
3270 | if (!inq_buff) |
3271 | goto bail_out; | |
3272 | ||
edd16368 SC |
3273 | /* Do an inquiry to the device to see what it is. */ |
3274 | if (hpsa_scsi_do_inquiry(h, scsi3addr, 0, inq_buff, | |
3275 | (unsigned char) OBDR_TAPE_INQ_SIZE) != 0) { | |
3276 | /* Inquiry failed (msg printed already) */ | |
3277 | dev_err(&h->pdev->dev, | |
3278 | "hpsa_update_device_info: inquiry failed\n"); | |
3279 | goto bail_out; | |
3280 | } | |
3281 | ||
edd16368 SC |
3282 | this_device->devtype = (inq_buff[0] & 0x1f); |
3283 | memcpy(this_device->scsi3addr, scsi3addr, 8); | |
3284 | memcpy(this_device->vendor, &inq_buff[8], | |
3285 | sizeof(this_device->vendor)); | |
3286 | memcpy(this_device->model, &inq_buff[16], | |
3287 | sizeof(this_device->model)); | |
edd16368 SC |
3288 | memset(this_device->device_id, 0, |
3289 | sizeof(this_device->device_id)); | |
3290 | hpsa_get_device_id(h, scsi3addr, this_device->device_id, | |
3291 | sizeof(this_device->device_id)); | |
3292 | ||
3293 | if (this_device->devtype == TYPE_DISK && | |
283b4a9b | 3294 | is_logical_dev_addr_mode(scsi3addr)) { |
67955ba3 SC |
3295 | int volume_offline; |
3296 | ||
edd16368 | 3297 | hpsa_get_raid_level(h, scsi3addr, &this_device->raid_level); |
283b4a9b SC |
3298 | if (h->fw_support & MISC_FW_RAID_OFFLOAD_BASIC) |
3299 | hpsa_get_ioaccel_status(h, scsi3addr, this_device); | |
67955ba3 SC |
3300 | volume_offline = hpsa_volume_offline(h, scsi3addr); |
3301 | if (volume_offline < 0 || volume_offline > 0xff) | |
3302 | volume_offline = HPSA_VPD_LV_STATUS_UNSUPPORTED; | |
3303 | this_device->volume_offline = volume_offline & 0xff; | |
283b4a9b | 3304 | } else { |
edd16368 | 3305 | this_device->raid_level = RAID_UNKNOWN; |
283b4a9b SC |
3306 | this_device->offload_config = 0; |
3307 | this_device->offload_enabled = 0; | |
41ce4c35 | 3308 | this_device->offload_to_be_enabled = 0; |
a3144e0b | 3309 | this_device->hba_ioaccel_enabled = 0; |
9846590e | 3310 | this_device->volume_offline = 0; |
03383736 | 3311 | this_device->queue_depth = h->nr_cmds; |
283b4a9b | 3312 | } |
edd16368 | 3313 | |
0b0e1d6c SC |
3314 | if (is_OBDR_device) { |
3315 | /* See if this is a One-Button-Disaster-Recovery device | |
3316 | * by looking for "$DR-10" at offset 43 in inquiry data. | |
3317 | */ | |
3318 | obdr_sig = &inq_buff[OBDR_SIG_OFFSET]; | |
3319 | *is_OBDR_device = (this_device->devtype == TYPE_ROM && | |
3320 | strncmp(obdr_sig, OBDR_TAPE_SIG, | |
3321 | OBDR_SIG_LEN) == 0); | |
3322 | } | |
edd16368 SC |
3323 | kfree(inq_buff); |
3324 | return 0; | |
3325 | ||
3326 | bail_out: | |
3327 | kfree(inq_buff); | |
3328 | return 1; | |
3329 | } | |
3330 | ||
9b5c48c2 SC |
3331 | static void hpsa_update_device_supports_aborts(struct ctlr_info *h, |
3332 | struct hpsa_scsi_dev_t *dev, u8 *scsi3addr) | |
3333 | { | |
3334 | unsigned long flags; | |
3335 | int rc, entry; | |
3336 | /* | |
3337 | * See if this device supports aborts. If we already know | |
3338 | * the device, we already know if it supports aborts, otherwise | |
3339 | * we have to find out if it supports aborts by trying one. | |
3340 | */ | |
3341 | spin_lock_irqsave(&h->devlock, flags); | |
3342 | rc = hpsa_scsi_find_entry(dev, h->dev, h->ndevices, &entry); | |
3343 | if ((rc == DEVICE_SAME || rc == DEVICE_UPDATED) && | |
3344 | entry >= 0 && entry < h->ndevices) { | |
3345 | dev->supports_aborts = h->dev[entry]->supports_aborts; | |
3346 | spin_unlock_irqrestore(&h->devlock, flags); | |
3347 | } else { | |
3348 | spin_unlock_irqrestore(&h->devlock, flags); | |
3349 | dev->supports_aborts = | |
3350 | hpsa_device_supports_aborts(h, scsi3addr); | |
3351 | if (dev->supports_aborts < 0) | |
3352 | dev->supports_aborts = 0; | |
3353 | } | |
3354 | } | |
3355 | ||
4f4eb9f1 | 3356 | static unsigned char *ext_target_model[] = { |
edd16368 SC |
3357 | "MSA2012", |
3358 | "MSA2024", | |
3359 | "MSA2312", | |
3360 | "MSA2324", | |
fda38518 | 3361 | "P2000 G3 SAS", |
e06c8e5c | 3362 | "MSA 2040 SAS", |
edd16368 SC |
3363 | NULL, |
3364 | }; | |
3365 | ||
4f4eb9f1 | 3366 | static int is_ext_target(struct ctlr_info *h, struct hpsa_scsi_dev_t *device) |
edd16368 SC |
3367 | { |
3368 | int i; | |
3369 | ||
4f4eb9f1 ST |
3370 | for (i = 0; ext_target_model[i]; i++) |
3371 | if (strncmp(device->model, ext_target_model[i], | |
3372 | strlen(ext_target_model[i])) == 0) | |
edd16368 SC |
3373 | return 1; |
3374 | return 0; | |
3375 | } | |
3376 | ||
3377 | /* Helper function to assign bus, target, lun mapping of devices. | |
4f4eb9f1 | 3378 | * Puts non-external target logical volumes on bus 0, external target logical |
edd16368 SC |
3379 | * volumes on bus 1, physical devices on bus 2. and the hba on bus 3. |
3380 | * Logical drive target and lun are assigned at this time, but | |
3381 | * physical device lun and target assignment are deferred (assigned | |
3382 | * in hpsa_find_target_lun, called by hpsa_scsi_add_entry.) | |
3383 | */ | |
3384 | static void figure_bus_target_lun(struct ctlr_info *h, | |
1f310bde | 3385 | u8 *lunaddrbytes, struct hpsa_scsi_dev_t *device) |
edd16368 | 3386 | { |
1f310bde SC |
3387 | u32 lunid = le32_to_cpu(*((__le32 *) lunaddrbytes)); |
3388 | ||
3389 | if (!is_logical_dev_addr_mode(lunaddrbytes)) { | |
3390 | /* physical device, target and lun filled in later */ | |
edd16368 | 3391 | if (is_hba_lunid(lunaddrbytes)) |
1f310bde | 3392 | hpsa_set_bus_target_lun(device, 3, 0, lunid & 0x3fff); |
edd16368 | 3393 | else |
1f310bde SC |
3394 | /* defer target, lun assignment for physical devices */ |
3395 | hpsa_set_bus_target_lun(device, 2, -1, -1); | |
3396 | return; | |
3397 | } | |
3398 | /* It's a logical device */ | |
4f4eb9f1 ST |
3399 | if (is_ext_target(h, device)) { |
3400 | /* external target way, put logicals on bus 1 | |
1f310bde SC |
3401 | * and match target/lun numbers box |
3402 | * reports, other smart array, bus 0, target 0, match lunid | |
3403 | */ | |
3404 | hpsa_set_bus_target_lun(device, | |
3405 | 1, (lunid >> 16) & 0x3fff, lunid & 0x00ff); | |
3406 | return; | |
edd16368 | 3407 | } |
1f310bde | 3408 | hpsa_set_bus_target_lun(device, 0, 0, lunid & 0x3fff); |
edd16368 SC |
3409 | } |
3410 | ||
3411 | /* | |
3412 | * If there is no lun 0 on a target, linux won't find any devices. | |
4f4eb9f1 | 3413 | * For the external targets (arrays), we have to manually detect the enclosure |
edd16368 SC |
3414 | * which is at lun zero, as CCISS_REPORT_PHYSICAL_LUNS doesn't report |
3415 | * it for some reason. *tmpdevice is the target we're adding, | |
3416 | * this_device is a pointer into the current element of currentsd[] | |
3417 | * that we're building up in update_scsi_devices(), below. | |
3418 | * lunzerobits is a bitmap that tracks which targets already have a | |
3419 | * lun 0 assigned. | |
3420 | * Returns 1 if an enclosure was added, 0 if not. | |
3421 | */ | |
4f4eb9f1 | 3422 | static int add_ext_target_dev(struct ctlr_info *h, |
edd16368 | 3423 | struct hpsa_scsi_dev_t *tmpdevice, |
01a02ffc | 3424 | struct hpsa_scsi_dev_t *this_device, u8 *lunaddrbytes, |
4f4eb9f1 | 3425 | unsigned long lunzerobits[], int *n_ext_target_devs) |
edd16368 SC |
3426 | { |
3427 | unsigned char scsi3addr[8]; | |
3428 | ||
1f310bde | 3429 | if (test_bit(tmpdevice->target, lunzerobits)) |
edd16368 SC |
3430 | return 0; /* There is already a lun 0 on this target. */ |
3431 | ||
3432 | if (!is_logical_dev_addr_mode(lunaddrbytes)) | |
3433 | return 0; /* It's the logical targets that may lack lun 0. */ | |
3434 | ||
4f4eb9f1 ST |
3435 | if (!is_ext_target(h, tmpdevice)) |
3436 | return 0; /* Only external target devices have this problem. */ | |
edd16368 | 3437 | |
1f310bde | 3438 | if (tmpdevice->lun == 0) /* if lun is 0, then we have a lun 0. */ |
edd16368 SC |
3439 | return 0; |
3440 | ||
c4f8a299 | 3441 | memset(scsi3addr, 0, 8); |
1f310bde | 3442 | scsi3addr[3] = tmpdevice->target; |
edd16368 SC |
3443 | if (is_hba_lunid(scsi3addr)) |
3444 | return 0; /* Don't add the RAID controller here. */ | |
3445 | ||
339b2b14 SC |
3446 | if (is_scsi_rev_5(h)) |
3447 | return 0; /* p1210m doesn't need to do this. */ | |
3448 | ||
4f4eb9f1 | 3449 | if (*n_ext_target_devs >= MAX_EXT_TARGETS) { |
aca4a520 ST |
3450 | dev_warn(&h->pdev->dev, "Maximum number of external " |
3451 | "target devices exceeded. Check your hardware " | |
edd16368 SC |
3452 | "configuration."); |
3453 | return 0; | |
3454 | } | |
3455 | ||
0b0e1d6c | 3456 | if (hpsa_update_device_info(h, scsi3addr, this_device, NULL)) |
edd16368 | 3457 | return 0; |
4f4eb9f1 | 3458 | (*n_ext_target_devs)++; |
1f310bde SC |
3459 | hpsa_set_bus_target_lun(this_device, |
3460 | tmpdevice->bus, tmpdevice->target, 0); | |
9b5c48c2 | 3461 | hpsa_update_device_supports_aborts(h, this_device, scsi3addr); |
1f310bde | 3462 | set_bit(tmpdevice->target, lunzerobits); |
edd16368 SC |
3463 | return 1; |
3464 | } | |
3465 | ||
54b6e9e9 ST |
3466 | /* |
3467 | * Get address of physical disk used for an ioaccel2 mode command: | |
3468 | * 1. Extract ioaccel2 handle from the command. | |
3469 | * 2. Find a matching ioaccel2 handle from list of physical disks. | |
3470 | * 3. Return: | |
3471 | * 1 and set scsi3addr to address of matching physical | |
3472 | * 0 if no matching physical disk was found. | |
3473 | */ | |
3474 | static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info *h, | |
3475 | struct CommandList *ioaccel2_cmd_to_abort, unsigned char *scsi3addr) | |
3476 | { | |
41ce4c35 SC |
3477 | struct io_accel2_cmd *c2 = |
3478 | &h->ioaccel2_cmd_pool[ioaccel2_cmd_to_abort->cmdindex]; | |
3479 | unsigned long flags; | |
54b6e9e9 | 3480 | int i; |
54b6e9e9 | 3481 | |
41ce4c35 SC |
3482 | spin_lock_irqsave(&h->devlock, flags); |
3483 | for (i = 0; i < h->ndevices; i++) | |
3484 | if (h->dev[i]->ioaccel_handle == le32_to_cpu(c2->scsi_nexus)) { | |
3485 | memcpy(scsi3addr, h->dev[i]->scsi3addr, | |
3486 | sizeof(h->dev[i]->scsi3addr)); | |
3487 | spin_unlock_irqrestore(&h->devlock, flags); | |
3488 | return 1; | |
3489 | } | |
3490 | spin_unlock_irqrestore(&h->devlock, flags); | |
3491 | return 0; | |
54b6e9e9 | 3492 | } |
41ce4c35 | 3493 | |
edd16368 SC |
3494 | /* |
3495 | * Do CISS_REPORT_PHYS and CISS_REPORT_LOG. Data is returned in physdev, | |
3496 | * logdev. The number of luns in physdev and logdev are returned in | |
3497 | * *nphysicals and *nlogicals, respectively. | |
3498 | * Returns 0 on success, -1 otherwise. | |
3499 | */ | |
3500 | static int hpsa_gather_lun_info(struct ctlr_info *h, | |
03383736 | 3501 | struct ReportExtendedLUNdata *physdev, u32 *nphysicals, |
01a02ffc | 3502 | struct ReportLUNdata *logdev, u32 *nlogicals) |
edd16368 | 3503 | { |
03383736 | 3504 | if (hpsa_scsi_do_report_phys_luns(h, physdev, sizeof(*physdev))) { |
edd16368 SC |
3505 | dev_err(&h->pdev->dev, "report physical LUNs failed.\n"); |
3506 | return -1; | |
3507 | } | |
03383736 | 3508 | *nphysicals = be32_to_cpu(*((__be32 *)physdev->LUNListLength)) / 24; |
edd16368 | 3509 | if (*nphysicals > HPSA_MAX_PHYS_LUN) { |
03383736 DB |
3510 | dev_warn(&h->pdev->dev, "maximum physical LUNs (%d) exceeded. %d LUNs ignored.\n", |
3511 | HPSA_MAX_PHYS_LUN, *nphysicals - HPSA_MAX_PHYS_LUN); | |
edd16368 SC |
3512 | *nphysicals = HPSA_MAX_PHYS_LUN; |
3513 | } | |
03383736 | 3514 | if (hpsa_scsi_do_report_log_luns(h, logdev, sizeof(*logdev))) { |
edd16368 SC |
3515 | dev_err(&h->pdev->dev, "report logical LUNs failed.\n"); |
3516 | return -1; | |
3517 | } | |
6df1e954 | 3518 | *nlogicals = be32_to_cpu(*((__be32 *) logdev->LUNListLength)) / 8; |
edd16368 SC |
3519 | /* Reject Logicals in excess of our max capability. */ |
3520 | if (*nlogicals > HPSA_MAX_LUN) { | |
3521 | dev_warn(&h->pdev->dev, | |
3522 | "maximum logical LUNs (%d) exceeded. " | |
3523 | "%d LUNs ignored.\n", HPSA_MAX_LUN, | |
3524 | *nlogicals - HPSA_MAX_LUN); | |
3525 | *nlogicals = HPSA_MAX_LUN; | |
3526 | } | |
3527 | if (*nlogicals + *nphysicals > HPSA_MAX_PHYS_LUN) { | |
3528 | dev_warn(&h->pdev->dev, | |
3529 | "maximum logical + physical LUNs (%d) exceeded. " | |
3530 | "%d LUNs ignored.\n", HPSA_MAX_PHYS_LUN, | |
3531 | *nphysicals + *nlogicals - HPSA_MAX_PHYS_LUN); | |
3532 | *nlogicals = HPSA_MAX_PHYS_LUN - *nphysicals; | |
3533 | } | |
3534 | return 0; | |
3535 | } | |
3536 | ||
42a91641 DB |
3537 | static u8 *figure_lunaddrbytes(struct ctlr_info *h, int raid_ctlr_position, |
3538 | int i, int nphysicals, int nlogicals, | |
a93aa1fe | 3539 | struct ReportExtendedLUNdata *physdev_list, |
339b2b14 SC |
3540 | struct ReportLUNdata *logdev_list) |
3541 | { | |
3542 | /* Helper function, figure out where the LUN ID info is coming from | |
3543 | * given index i, lists of physical and logical devices, where in | |
3544 | * the list the raid controller is supposed to appear (first or last) | |
3545 | */ | |
3546 | ||
3547 | int logicals_start = nphysicals + (raid_ctlr_position == 0); | |
3548 | int last_device = nphysicals + nlogicals + (raid_ctlr_position == 0); | |
3549 | ||
3550 | if (i == raid_ctlr_position) | |
3551 | return RAID_CTLR_LUNID; | |
3552 | ||
3553 | if (i < logicals_start) | |
d5b5d964 SC |
3554 | return &physdev_list->LUN[i - |
3555 | (raid_ctlr_position == 0)].lunid[0]; | |
339b2b14 SC |
3556 | |
3557 | if (i < last_device) | |
3558 | return &logdev_list->LUN[i - nphysicals - | |
3559 | (raid_ctlr_position == 0)][0]; | |
3560 | BUG(); | |
3561 | return NULL; | |
3562 | } | |
3563 | ||
316b221a SC |
3564 | static int hpsa_hba_mode_enabled(struct ctlr_info *h) |
3565 | { | |
3566 | int rc; | |
6e8e8088 | 3567 | int hba_mode_enabled; |
316b221a SC |
3568 | struct bmic_controller_parameters *ctlr_params; |
3569 | ctlr_params = kzalloc(sizeof(struct bmic_controller_parameters), | |
3570 | GFP_KERNEL); | |
3571 | ||
3572 | if (!ctlr_params) | |
96444fbb | 3573 | return -ENOMEM; |
316b221a SC |
3574 | rc = hpsa_bmic_ctrl_mode_sense(h, RAID_CTLR_LUNID, 0, ctlr_params, |
3575 | sizeof(struct bmic_controller_parameters)); | |
96444fbb | 3576 | if (rc) { |
316b221a | 3577 | kfree(ctlr_params); |
96444fbb | 3578 | return rc; |
316b221a | 3579 | } |
6e8e8088 JH |
3580 | |
3581 | hba_mode_enabled = | |
3582 | ((ctlr_params->nvram_flags & HBA_MODE_ENABLED_FLAG) != 0); | |
3583 | kfree(ctlr_params); | |
3584 | return hba_mode_enabled; | |
316b221a SC |
3585 | } |
3586 | ||
03383736 DB |
3587 | /* get physical drive ioaccel handle and queue depth */ |
3588 | static void hpsa_get_ioaccel_drive_info(struct ctlr_info *h, | |
3589 | struct hpsa_scsi_dev_t *dev, | |
3590 | u8 *lunaddrbytes, | |
3591 | struct bmic_identify_physical_device *id_phys) | |
3592 | { | |
3593 | int rc; | |
3594 | struct ext_report_lun_entry *rle = | |
3595 | (struct ext_report_lun_entry *) lunaddrbytes; | |
3596 | ||
3597 | dev->ioaccel_handle = rle->ioaccel_handle; | |
a3144e0b JH |
3598 | if (PHYS_IOACCEL(lunaddrbytes) && dev->ioaccel_handle) |
3599 | dev->hba_ioaccel_enabled = 1; | |
03383736 DB |
3600 | memset(id_phys, 0, sizeof(*id_phys)); |
3601 | rc = hpsa_bmic_id_physical_device(h, lunaddrbytes, | |
3602 | GET_BMIC_DRIVE_NUMBER(lunaddrbytes), id_phys, | |
3603 | sizeof(*id_phys)); | |
3604 | if (!rc) | |
3605 | /* Reserve space for FW operations */ | |
3606 | #define DRIVE_CMDS_RESERVED_FOR_FW 2 | |
3607 | #define DRIVE_QUEUE_DEPTH 7 | |
3608 | dev->queue_depth = | |
3609 | le16_to_cpu(id_phys->current_queue_depth_limit) - | |
3610 | DRIVE_CMDS_RESERVED_FOR_FW; | |
3611 | else | |
3612 | dev->queue_depth = DRIVE_QUEUE_DEPTH; /* conservative */ | |
3613 | atomic_set(&dev->ioaccel_cmds_out, 0); | |
d604f533 | 3614 | atomic_set(&dev->reset_cmds_out, 0); |
03383736 DB |
3615 | } |
3616 | ||
edd16368 SC |
3617 | static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) |
3618 | { | |
3619 | /* the idea here is we could get notified | |
3620 | * that some devices have changed, so we do a report | |
3621 | * physical luns and report logical luns cmd, and adjust | |
3622 | * our list of devices accordingly. | |
3623 | * | |
3624 | * The scsi3addr's of devices won't change so long as the | |
3625 | * adapter is not reset. That means we can rescan and | |
3626 | * tell which devices we already know about, vs. new | |
3627 | * devices, vs. disappearing devices. | |
3628 | */ | |
a93aa1fe | 3629 | struct ReportExtendedLUNdata *physdev_list = NULL; |
edd16368 | 3630 | struct ReportLUNdata *logdev_list = NULL; |
03383736 | 3631 | struct bmic_identify_physical_device *id_phys = NULL; |
01a02ffc SC |
3632 | u32 nphysicals = 0; |
3633 | u32 nlogicals = 0; | |
3634 | u32 ndev_allocated = 0; | |
edd16368 SC |
3635 | struct hpsa_scsi_dev_t **currentsd, *this_device, *tmpdevice; |
3636 | int ncurrent = 0; | |
4f4eb9f1 | 3637 | int i, n_ext_target_devs, ndevs_to_allocate; |
339b2b14 | 3638 | int raid_ctlr_position; |
2bbf5c7f | 3639 | int rescan_hba_mode; |
aca4a520 | 3640 | DECLARE_BITMAP(lunzerobits, MAX_EXT_TARGETS); |
edd16368 | 3641 | |
cfe5badc | 3642 | currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_DEVICES, GFP_KERNEL); |
92084715 SC |
3643 | physdev_list = kzalloc(sizeof(*physdev_list), GFP_KERNEL); |
3644 | logdev_list = kzalloc(sizeof(*logdev_list), GFP_KERNEL); | |
edd16368 | 3645 | tmpdevice = kzalloc(sizeof(*tmpdevice), GFP_KERNEL); |
03383736 | 3646 | id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL); |
edd16368 | 3647 | |
03383736 DB |
3648 | if (!currentsd || !physdev_list || !logdev_list || |
3649 | !tmpdevice || !id_phys) { | |
edd16368 SC |
3650 | dev_err(&h->pdev->dev, "out of memory\n"); |
3651 | goto out; | |
3652 | } | |
3653 | memset(lunzerobits, 0, sizeof(lunzerobits)); | |
3654 | ||
316b221a | 3655 | rescan_hba_mode = hpsa_hba_mode_enabled(h); |
96444fbb JH |
3656 | if (rescan_hba_mode < 0) |
3657 | goto out; | |
316b221a SC |
3658 | |
3659 | if (!h->hba_mode_enabled && rescan_hba_mode) | |
3660 | dev_warn(&h->pdev->dev, "HBA mode enabled\n"); | |
3661 | else if (h->hba_mode_enabled && !rescan_hba_mode) | |
3662 | dev_warn(&h->pdev->dev, "HBA mode disabled\n"); | |
3663 | ||
3664 | h->hba_mode_enabled = rescan_hba_mode; | |
3665 | ||
03383736 DB |
3666 | if (hpsa_gather_lun_info(h, physdev_list, &nphysicals, |
3667 | logdev_list, &nlogicals)) | |
edd16368 SC |
3668 | goto out; |
3669 | ||
aca4a520 ST |
3670 | /* We might see up to the maximum number of logical and physical disks |
3671 | * plus external target devices, and a device for the local RAID | |
3672 | * controller. | |
edd16368 | 3673 | */ |
aca4a520 | 3674 | ndevs_to_allocate = nphysicals + nlogicals + MAX_EXT_TARGETS + 1; |
edd16368 SC |
3675 | |
3676 | /* Allocate the per device structures */ | |
3677 | for (i = 0; i < ndevs_to_allocate; i++) { | |
b7ec021f ST |
3678 | if (i >= HPSA_MAX_DEVICES) { |
3679 | dev_warn(&h->pdev->dev, "maximum devices (%d) exceeded." | |
3680 | " %d devices ignored.\n", HPSA_MAX_DEVICES, | |
3681 | ndevs_to_allocate - HPSA_MAX_DEVICES); | |
3682 | break; | |
3683 | } | |
3684 | ||
edd16368 SC |
3685 | currentsd[i] = kzalloc(sizeof(*currentsd[i]), GFP_KERNEL); |
3686 | if (!currentsd[i]) { | |
3687 | dev_warn(&h->pdev->dev, "out of memory at %s:%d\n", | |
3688 | __FILE__, __LINE__); | |
3689 | goto out; | |
3690 | } | |
3691 | ndev_allocated++; | |
3692 | } | |
3693 | ||
8645291b | 3694 | if (is_scsi_rev_5(h)) |
339b2b14 SC |
3695 | raid_ctlr_position = 0; |
3696 | else | |
3697 | raid_ctlr_position = nphysicals + nlogicals; | |
3698 | ||
edd16368 | 3699 | /* adjust our table of devices */ |
4f4eb9f1 | 3700 | n_ext_target_devs = 0; |
edd16368 | 3701 | for (i = 0; i < nphysicals + nlogicals + 1; i++) { |
0b0e1d6c | 3702 | u8 *lunaddrbytes, is_OBDR = 0; |
edd16368 SC |
3703 | |
3704 | /* Figure out where the LUN ID info is coming from */ | |
339b2b14 SC |
3705 | lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position, |
3706 | i, nphysicals, nlogicals, physdev_list, logdev_list); | |
41ce4c35 SC |
3707 | |
3708 | /* skip masked non-disk devices */ | |
3709 | if (MASKED_DEVICE(lunaddrbytes)) | |
3710 | if (i < nphysicals + (raid_ctlr_position == 0) && | |
3711 | NON_DISK_PHYS_DEV(lunaddrbytes)) | |
3712 | continue; | |
edd16368 SC |
3713 | |
3714 | /* Get device type, vendor, model, device id */ | |
0b0e1d6c SC |
3715 | if (hpsa_update_device_info(h, lunaddrbytes, tmpdevice, |
3716 | &is_OBDR)) | |
edd16368 | 3717 | continue; /* skip it if we can't talk to it. */ |
1f310bde | 3718 | figure_bus_target_lun(h, lunaddrbytes, tmpdevice); |
9b5c48c2 | 3719 | hpsa_update_device_supports_aborts(h, tmpdevice, lunaddrbytes); |
edd16368 SC |
3720 | this_device = currentsd[ncurrent]; |
3721 | ||
3722 | /* | |
4f4eb9f1 | 3723 | * For external target devices, we have to insert a LUN 0 which |
edd16368 SC |
3724 | * doesn't show up in CCISS_REPORT_PHYSICAL data, but there |
3725 | * is nonetheless an enclosure device there. We have to | |
3726 | * present that otherwise linux won't find anything if | |
3727 | * there is no lun 0. | |
3728 | */ | |
4f4eb9f1 | 3729 | if (add_ext_target_dev(h, tmpdevice, this_device, |
1f310bde | 3730 | lunaddrbytes, lunzerobits, |
4f4eb9f1 | 3731 | &n_ext_target_devs)) { |
edd16368 SC |
3732 | ncurrent++; |
3733 | this_device = currentsd[ncurrent]; | |
3734 | } | |
3735 | ||
3736 | *this_device = *tmpdevice; | |
edd16368 | 3737 | |
41ce4c35 SC |
3738 | /* do not expose masked devices */ |
3739 | if (MASKED_DEVICE(lunaddrbytes) && | |
3740 | i < nphysicals + (raid_ctlr_position == 0)) { | |
3741 | if (h->hba_mode_enabled) | |
3742 | dev_warn(&h->pdev->dev, | |
3743 | "Masked physical device detected\n"); | |
3744 | this_device->expose_state = HPSA_DO_NOT_EXPOSE; | |
3745 | } else { | |
3746 | this_device->expose_state = | |
3747 | HPSA_SG_ATTACH | HPSA_ULD_ATTACH; | |
3748 | } | |
3749 | ||
edd16368 | 3750 | switch (this_device->devtype) { |
0b0e1d6c | 3751 | case TYPE_ROM: |
edd16368 SC |
3752 | /* We don't *really* support actual CD-ROM devices, |
3753 | * just "One Button Disaster Recovery" tape drive | |
3754 | * which temporarily pretends to be a CD-ROM drive. | |
3755 | * So we check that the device is really an OBDR tape | |
3756 | * device by checking for "$DR-10" in bytes 43-48 of | |
3757 | * the inquiry data. | |
3758 | */ | |
0b0e1d6c SC |
3759 | if (is_OBDR) |
3760 | ncurrent++; | |
edd16368 SC |
3761 | break; |
3762 | case TYPE_DISK: | |
ecf418d1 | 3763 | if (i >= nphysicals) { |
316b221a SC |
3764 | ncurrent++; |
3765 | break; | |
283b4a9b | 3766 | } |
ecf418d1 JH |
3767 | |
3768 | if (h->hba_mode_enabled) | |
3769 | /* never use raid mapper in HBA mode */ | |
3770 | this_device->offload_enabled = 0; | |
3771 | else if (!(h->transMethod & CFGTBL_Trans_io_accel1 || | |
3772 | h->transMethod & CFGTBL_Trans_io_accel2)) | |
3773 | break; | |
3774 | ||
3775 | hpsa_get_ioaccel_drive_info(h, this_device, | |
3776 | lunaddrbytes, id_phys); | |
3777 | atomic_set(&this_device->ioaccel_cmds_out, 0); | |
3778 | ncurrent++; | |
edd16368 SC |
3779 | break; |
3780 | case TYPE_TAPE: | |
3781 | case TYPE_MEDIUM_CHANGER: | |
3782 | ncurrent++; | |
3783 | break; | |
41ce4c35 SC |
3784 | case TYPE_ENCLOSURE: |
3785 | if (h->hba_mode_enabled) | |
3786 | ncurrent++; | |
3787 | break; | |
edd16368 SC |
3788 | case TYPE_RAID: |
3789 | /* Only present the Smartarray HBA as a RAID controller. | |
3790 | * If it's a RAID controller other than the HBA itself | |
3791 | * (an external RAID controller, MSA500 or similar) | |
3792 | * don't present it. | |
3793 | */ | |
3794 | if (!is_hba_lunid(lunaddrbytes)) | |
3795 | break; | |
3796 | ncurrent++; | |
3797 | break; | |
3798 | default: | |
3799 | break; | |
3800 | } | |
cfe5badc | 3801 | if (ncurrent >= HPSA_MAX_DEVICES) |
edd16368 SC |
3802 | break; |
3803 | } | |
3804 | adjust_hpsa_scsi_table(h, hostno, currentsd, ncurrent); | |
3805 | out: | |
3806 | kfree(tmpdevice); | |
3807 | for (i = 0; i < ndev_allocated; i++) | |
3808 | kfree(currentsd[i]); | |
3809 | kfree(currentsd); | |
edd16368 SC |
3810 | kfree(physdev_list); |
3811 | kfree(logdev_list); | |
03383736 | 3812 | kfree(id_phys); |
edd16368 SC |
3813 | } |
3814 | ||
ec5cbf04 WS |
3815 | static void hpsa_set_sg_descriptor(struct SGDescriptor *desc, |
3816 | struct scatterlist *sg) | |
3817 | { | |
3818 | u64 addr64 = (u64) sg_dma_address(sg); | |
3819 | unsigned int len = sg_dma_len(sg); | |
3820 | ||
3821 | desc->Addr = cpu_to_le64(addr64); | |
3822 | desc->Len = cpu_to_le32(len); | |
3823 | desc->Ext = 0; | |
3824 | } | |
3825 | ||
c7ee65b3 WS |
3826 | /* |
3827 | * hpsa_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci | |
edd16368 SC |
3828 | * dma mapping and fills in the scatter gather entries of the |
3829 | * hpsa command, cp. | |
3830 | */ | |
33a2ffce | 3831 | static int hpsa_scatter_gather(struct ctlr_info *h, |
edd16368 SC |
3832 | struct CommandList *cp, |
3833 | struct scsi_cmnd *cmd) | |
3834 | { | |
edd16368 | 3835 | struct scatterlist *sg; |
b3a7ba7c | 3836 | int use_sg, i, sg_limit, chained, last_sg; |
33a2ffce | 3837 | struct SGDescriptor *curr_sg; |
edd16368 | 3838 | |
33a2ffce | 3839 | BUG_ON(scsi_sg_count(cmd) > h->maxsgentries); |
edd16368 SC |
3840 | |
3841 | use_sg = scsi_dma_map(cmd); | |
3842 | if (use_sg < 0) | |
3843 | return use_sg; | |
3844 | ||
3845 | if (!use_sg) | |
3846 | goto sglist_finished; | |
3847 | ||
b3a7ba7c WS |
3848 | /* |
3849 | * If the number of entries is greater than the max for a single list, | |
3850 | * then we have a chained list; we will set up all but one entry in the | |
3851 | * first list (the last entry is saved for link information); | |
3852 | * otherwise, we don't have a chained list and we'll set up at each of | |
3853 | * the entries in the one list. | |
3854 | */ | |
33a2ffce | 3855 | curr_sg = cp->SG; |
b3a7ba7c WS |
3856 | chained = use_sg > h->max_cmd_sg_entries; |
3857 | sg_limit = chained ? h->max_cmd_sg_entries - 1 : use_sg; | |
3858 | last_sg = scsi_sg_count(cmd) - 1; | |
3859 | scsi_for_each_sg(cmd, sg, sg_limit, i) { | |
ec5cbf04 | 3860 | hpsa_set_sg_descriptor(curr_sg, sg); |
33a2ffce SC |
3861 | curr_sg++; |
3862 | } | |
ec5cbf04 | 3863 | |
b3a7ba7c WS |
3864 | if (chained) { |
3865 | /* | |
3866 | * Continue with the chained list. Set curr_sg to the chained | |
3867 | * list. Modify the limit to the total count less the entries | |
3868 | * we've already set up. Resume the scan at the list entry | |
3869 | * where the previous loop left off. | |
3870 | */ | |
3871 | curr_sg = h->cmd_sg_list[cp->cmdindex]; | |
3872 | sg_limit = use_sg - sg_limit; | |
3873 | for_each_sg(sg, sg, sg_limit, i) { | |
3874 | hpsa_set_sg_descriptor(curr_sg, sg); | |
3875 | curr_sg++; | |
3876 | } | |
3877 | } | |
3878 | ||
ec5cbf04 | 3879 | /* Back the pointer up to the last entry and mark it as "last". */ |
b3a7ba7c | 3880 | (curr_sg - 1)->Ext = cpu_to_le32(HPSA_SG_LAST); |
33a2ffce SC |
3881 | |
3882 | if (use_sg + chained > h->maxSG) | |
3883 | h->maxSG = use_sg + chained; | |
3884 | ||
3885 | if (chained) { | |
3886 | cp->Header.SGList = h->max_cmd_sg_entries; | |
50a0decf | 3887 | cp->Header.SGTotal = cpu_to_le16(use_sg + 1); |
e2bea6df SC |
3888 | if (hpsa_map_sg_chain_block(h, cp)) { |
3889 | scsi_dma_unmap(cmd); | |
3890 | return -1; | |
3891 | } | |
33a2ffce | 3892 | return 0; |
edd16368 SC |
3893 | } |
3894 | ||
3895 | sglist_finished: | |
3896 | ||
01a02ffc | 3897 | cp->Header.SGList = (u8) use_sg; /* no. SGs contig in this cmd */ |
c7ee65b3 | 3898 | cp->Header.SGTotal = cpu_to_le16(use_sg); /* total sgs in cmd list */ |
edd16368 SC |
3899 | return 0; |
3900 | } | |
3901 | ||
283b4a9b SC |
3902 | #define IO_ACCEL_INELIGIBLE (1) |
3903 | static int fixup_ioaccel_cdb(u8 *cdb, int *cdb_len) | |
3904 | { | |
3905 | int is_write = 0; | |
3906 | u32 block; | |
3907 | u32 block_cnt; | |
3908 | ||
3909 | /* Perform some CDB fixups if needed using 10 byte reads/writes only */ | |
3910 | switch (cdb[0]) { | |
3911 | case WRITE_6: | |
3912 | case WRITE_12: | |
3913 | is_write = 1; | |
3914 | case READ_6: | |
3915 | case READ_12: | |
3916 | if (*cdb_len == 6) { | |
3917 | block = (((u32) cdb[2]) << 8) | cdb[3]; | |
3918 | block_cnt = cdb[4]; | |
3919 | } else { | |
3920 | BUG_ON(*cdb_len != 12); | |
3921 | block = (((u32) cdb[2]) << 24) | | |
3922 | (((u32) cdb[3]) << 16) | | |
3923 | (((u32) cdb[4]) << 8) | | |
3924 | cdb[5]; | |
3925 | block_cnt = | |
3926 | (((u32) cdb[6]) << 24) | | |
3927 | (((u32) cdb[7]) << 16) | | |
3928 | (((u32) cdb[8]) << 8) | | |
3929 | cdb[9]; | |
3930 | } | |
3931 | if (block_cnt > 0xffff) | |
3932 | return IO_ACCEL_INELIGIBLE; | |
3933 | ||
3934 | cdb[0] = is_write ? WRITE_10 : READ_10; | |
3935 | cdb[1] = 0; | |
3936 | cdb[2] = (u8) (block >> 24); | |
3937 | cdb[3] = (u8) (block >> 16); | |
3938 | cdb[4] = (u8) (block >> 8); | |
3939 | cdb[5] = (u8) (block); | |
3940 | cdb[6] = 0; | |
3941 | cdb[7] = (u8) (block_cnt >> 8); | |
3942 | cdb[8] = (u8) (block_cnt); | |
3943 | cdb[9] = 0; | |
3944 | *cdb_len = 10; | |
3945 | break; | |
3946 | } | |
3947 | return 0; | |
3948 | } | |
3949 | ||
c349775e | 3950 | static int hpsa_scsi_ioaccel1_queue_command(struct ctlr_info *h, |
283b4a9b | 3951 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, |
03383736 | 3952 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk) |
e1f7de0c MG |
3953 | { |
3954 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
e1f7de0c MG |
3955 | struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[c->cmdindex]; |
3956 | unsigned int len; | |
3957 | unsigned int total_len = 0; | |
3958 | struct scatterlist *sg; | |
3959 | u64 addr64; | |
3960 | int use_sg, i; | |
3961 | struct SGDescriptor *curr_sg; | |
3962 | u32 control = IOACCEL1_CONTROL_SIMPLEQUEUE; | |
3963 | ||
283b4a9b | 3964 | /* TODO: implement chaining support */ |
03383736 DB |
3965 | if (scsi_sg_count(cmd) > h->ioaccel_maxsg) { |
3966 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
283b4a9b | 3967 | return IO_ACCEL_INELIGIBLE; |
03383736 | 3968 | } |
283b4a9b | 3969 | |
e1f7de0c MG |
3970 | BUG_ON(cmd->cmd_len > IOACCEL1_IOFLAGS_CDBLEN_MAX); |
3971 | ||
03383736 DB |
3972 | if (fixup_ioaccel_cdb(cdb, &cdb_len)) { |
3973 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
283b4a9b | 3974 | return IO_ACCEL_INELIGIBLE; |
03383736 | 3975 | } |
283b4a9b | 3976 | |
e1f7de0c MG |
3977 | c->cmd_type = CMD_IOACCEL1; |
3978 | ||
3979 | /* Adjust the DMA address to point to the accelerated command buffer */ | |
3980 | c->busaddr = (u32) h->ioaccel_cmd_pool_dhandle + | |
3981 | (c->cmdindex * sizeof(*cp)); | |
3982 | BUG_ON(c->busaddr & 0x0000007F); | |
3983 | ||
3984 | use_sg = scsi_dma_map(cmd); | |
03383736 DB |
3985 | if (use_sg < 0) { |
3986 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
e1f7de0c | 3987 | return use_sg; |
03383736 | 3988 | } |
e1f7de0c MG |
3989 | |
3990 | if (use_sg) { | |
3991 | curr_sg = cp->SG; | |
3992 | scsi_for_each_sg(cmd, sg, use_sg, i) { | |
3993 | addr64 = (u64) sg_dma_address(sg); | |
3994 | len = sg_dma_len(sg); | |
3995 | total_len += len; | |
50a0decf SC |
3996 | curr_sg->Addr = cpu_to_le64(addr64); |
3997 | curr_sg->Len = cpu_to_le32(len); | |
3998 | curr_sg->Ext = cpu_to_le32(0); | |
e1f7de0c MG |
3999 | curr_sg++; |
4000 | } | |
50a0decf | 4001 | (--curr_sg)->Ext = cpu_to_le32(HPSA_SG_LAST); |
e1f7de0c MG |
4002 | |
4003 | switch (cmd->sc_data_direction) { | |
4004 | case DMA_TO_DEVICE: | |
4005 | control |= IOACCEL1_CONTROL_DATA_OUT; | |
4006 | break; | |
4007 | case DMA_FROM_DEVICE: | |
4008 | control |= IOACCEL1_CONTROL_DATA_IN; | |
4009 | break; | |
4010 | case DMA_NONE: | |
4011 | control |= IOACCEL1_CONTROL_NODATAXFER; | |
4012 | break; | |
4013 | default: | |
4014 | dev_err(&h->pdev->dev, "unknown data direction: %d\n", | |
4015 | cmd->sc_data_direction); | |
4016 | BUG(); | |
4017 | break; | |
4018 | } | |
4019 | } else { | |
4020 | control |= IOACCEL1_CONTROL_NODATAXFER; | |
4021 | } | |
4022 | ||
c349775e | 4023 | c->Header.SGList = use_sg; |
e1f7de0c | 4024 | /* Fill out the command structure to submit */ |
2b08b3e9 DB |
4025 | cp->dev_handle = cpu_to_le16(ioaccel_handle & 0xFFFF); |
4026 | cp->transfer_len = cpu_to_le32(total_len); | |
4027 | cp->io_flags = cpu_to_le16(IOACCEL1_IOFLAGS_IO_REQ | | |
4028 | (cdb_len & IOACCEL1_IOFLAGS_CDBLEN_MASK)); | |
4029 | cp->control = cpu_to_le32(control); | |
283b4a9b SC |
4030 | memcpy(cp->CDB, cdb, cdb_len); |
4031 | memcpy(cp->CISS_LUN, scsi3addr, 8); | |
c349775e | 4032 | /* Tag was already set at init time. */ |
283b4a9b | 4033 | enqueue_cmd_and_start_io(h, c); |
e1f7de0c MG |
4034 | return 0; |
4035 | } | |
edd16368 | 4036 | |
283b4a9b SC |
4037 | /* |
4038 | * Queue a command directly to a device behind the controller using the | |
4039 | * I/O accelerator path. | |
4040 | */ | |
4041 | static int hpsa_scsi_ioaccel_direct_map(struct ctlr_info *h, | |
4042 | struct CommandList *c) | |
4043 | { | |
4044 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4045 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4046 | ||
03383736 DB |
4047 | c->phys_disk = dev; |
4048 | ||
283b4a9b | 4049 | return hpsa_scsi_ioaccel_queue_command(h, c, dev->ioaccel_handle, |
03383736 | 4050 | cmd->cmnd, cmd->cmd_len, dev->scsi3addr, dev); |
283b4a9b SC |
4051 | } |
4052 | ||
dd0e19f3 ST |
4053 | /* |
4054 | * Set encryption parameters for the ioaccel2 request | |
4055 | */ | |
4056 | static void set_encrypt_ioaccel2(struct ctlr_info *h, | |
4057 | struct CommandList *c, struct io_accel2_cmd *cp) | |
4058 | { | |
4059 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4060 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4061 | struct raid_map_data *map = &dev->raid_map; | |
4062 | u64 first_block; | |
4063 | ||
dd0e19f3 | 4064 | /* Are we doing encryption on this device */ |
2b08b3e9 | 4065 | if (!(le16_to_cpu(map->flags) & RAID_MAP_FLAG_ENCRYPT_ON)) |
dd0e19f3 ST |
4066 | return; |
4067 | /* Set the data encryption key index. */ | |
4068 | cp->dekindex = map->dekindex; | |
4069 | ||
4070 | /* Set the encryption enable flag, encoded into direction field. */ | |
4071 | cp->direction |= IOACCEL2_DIRECTION_ENCRYPT_MASK; | |
4072 | ||
4073 | /* Set encryption tweak values based on logical block address | |
4074 | * If block size is 512, tweak value is LBA. | |
4075 | * For other block sizes, tweak is (LBA * block size)/ 512) | |
4076 | */ | |
4077 | switch (cmd->cmnd[0]) { | |
4078 | /* Required? 6-byte cdbs eliminated by fixup_ioaccel_cdb */ | |
4079 | case WRITE_6: | |
4080 | case READ_6: | |
2b08b3e9 | 4081 | first_block = get_unaligned_be16(&cmd->cmnd[2]); |
dd0e19f3 ST |
4082 | break; |
4083 | case WRITE_10: | |
4084 | case READ_10: | |
dd0e19f3 ST |
4085 | /* Required? 12-byte cdbs eliminated by fixup_ioaccel_cdb */ |
4086 | case WRITE_12: | |
4087 | case READ_12: | |
2b08b3e9 | 4088 | first_block = get_unaligned_be32(&cmd->cmnd[2]); |
dd0e19f3 ST |
4089 | break; |
4090 | case WRITE_16: | |
4091 | case READ_16: | |
2b08b3e9 | 4092 | first_block = get_unaligned_be64(&cmd->cmnd[2]); |
dd0e19f3 ST |
4093 | break; |
4094 | default: | |
4095 | dev_err(&h->pdev->dev, | |
2b08b3e9 DB |
4096 | "ERROR: %s: size (0x%x) not supported for encryption\n", |
4097 | __func__, cmd->cmnd[0]); | |
dd0e19f3 ST |
4098 | BUG(); |
4099 | break; | |
4100 | } | |
2b08b3e9 DB |
4101 | |
4102 | if (le32_to_cpu(map->volume_blk_size) != 512) | |
4103 | first_block = first_block * | |
4104 | le32_to_cpu(map->volume_blk_size)/512; | |
4105 | ||
4106 | cp->tweak_lower = cpu_to_le32(first_block); | |
4107 | cp->tweak_upper = cpu_to_le32(first_block >> 32); | |
dd0e19f3 ST |
4108 | } |
4109 | ||
c349775e ST |
4110 | static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h, |
4111 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, | |
03383736 | 4112 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk) |
c349775e ST |
4113 | { |
4114 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4115 | struct io_accel2_cmd *cp = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
4116 | struct ioaccel2_sg_element *curr_sg; | |
4117 | int use_sg, i; | |
4118 | struct scatterlist *sg; | |
4119 | u64 addr64; | |
4120 | u32 len; | |
4121 | u32 total_len = 0; | |
4122 | ||
d9a729f3 | 4123 | BUG_ON(scsi_sg_count(cmd) > h->maxsgentries); |
c349775e | 4124 | |
03383736 DB |
4125 | if (fixup_ioaccel_cdb(cdb, &cdb_len)) { |
4126 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
c349775e | 4127 | return IO_ACCEL_INELIGIBLE; |
03383736 DB |
4128 | } |
4129 | ||
c349775e ST |
4130 | c->cmd_type = CMD_IOACCEL2; |
4131 | /* Adjust the DMA address to point to the accelerated command buffer */ | |
4132 | c->busaddr = (u32) h->ioaccel2_cmd_pool_dhandle + | |
4133 | (c->cmdindex * sizeof(*cp)); | |
4134 | BUG_ON(c->busaddr & 0x0000007F); | |
4135 | ||
4136 | memset(cp, 0, sizeof(*cp)); | |
4137 | cp->IU_type = IOACCEL2_IU_TYPE; | |
4138 | ||
4139 | use_sg = scsi_dma_map(cmd); | |
03383736 DB |
4140 | if (use_sg < 0) { |
4141 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
c349775e | 4142 | return use_sg; |
03383736 | 4143 | } |
c349775e ST |
4144 | |
4145 | if (use_sg) { | |
c349775e | 4146 | curr_sg = cp->sg; |
d9a729f3 WS |
4147 | if (use_sg > h->ioaccel_maxsg) { |
4148 | addr64 = le64_to_cpu( | |
4149 | h->ioaccel2_cmd_sg_list[c->cmdindex]->address); | |
4150 | curr_sg->address = cpu_to_le64(addr64); | |
4151 | curr_sg->length = 0; | |
4152 | curr_sg->reserved[0] = 0; | |
4153 | curr_sg->reserved[1] = 0; | |
4154 | curr_sg->reserved[2] = 0; | |
4155 | curr_sg->chain_indicator = 0x80; | |
4156 | ||
4157 | curr_sg = h->ioaccel2_cmd_sg_list[c->cmdindex]; | |
4158 | } | |
c349775e ST |
4159 | scsi_for_each_sg(cmd, sg, use_sg, i) { |
4160 | addr64 = (u64) sg_dma_address(sg); | |
4161 | len = sg_dma_len(sg); | |
4162 | total_len += len; | |
4163 | curr_sg->address = cpu_to_le64(addr64); | |
4164 | curr_sg->length = cpu_to_le32(len); | |
4165 | curr_sg->reserved[0] = 0; | |
4166 | curr_sg->reserved[1] = 0; | |
4167 | curr_sg->reserved[2] = 0; | |
4168 | curr_sg->chain_indicator = 0; | |
4169 | curr_sg++; | |
4170 | } | |
4171 | ||
4172 | switch (cmd->sc_data_direction) { | |
4173 | case DMA_TO_DEVICE: | |
dd0e19f3 ST |
4174 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4175 | cp->direction |= IOACCEL2_DIR_DATA_OUT; | |
c349775e ST |
4176 | break; |
4177 | case DMA_FROM_DEVICE: | |
dd0e19f3 ST |
4178 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4179 | cp->direction |= IOACCEL2_DIR_DATA_IN; | |
c349775e ST |
4180 | break; |
4181 | case DMA_NONE: | |
dd0e19f3 ST |
4182 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4183 | cp->direction |= IOACCEL2_DIR_NO_DATA; | |
c349775e ST |
4184 | break; |
4185 | default: | |
4186 | dev_err(&h->pdev->dev, "unknown data direction: %d\n", | |
4187 | cmd->sc_data_direction); | |
4188 | BUG(); | |
4189 | break; | |
4190 | } | |
4191 | } else { | |
dd0e19f3 ST |
4192 | cp->direction &= ~IOACCEL2_DIRECTION_MASK; |
4193 | cp->direction |= IOACCEL2_DIR_NO_DATA; | |
c349775e | 4194 | } |
dd0e19f3 ST |
4195 | |
4196 | /* Set encryption parameters, if necessary */ | |
4197 | set_encrypt_ioaccel2(h, c, cp); | |
4198 | ||
2b08b3e9 | 4199 | cp->scsi_nexus = cpu_to_le32(ioaccel_handle); |
f2405db8 | 4200 | cp->Tag = cpu_to_le32(c->cmdindex << DIRECT_LOOKUP_SHIFT); |
c349775e | 4201 | memcpy(cp->cdb, cdb, sizeof(cp->cdb)); |
c349775e | 4202 | |
c349775e ST |
4203 | cp->data_len = cpu_to_le32(total_len); |
4204 | cp->err_ptr = cpu_to_le64(c->busaddr + | |
4205 | offsetof(struct io_accel2_cmd, error_data)); | |
50a0decf | 4206 | cp->err_len = cpu_to_le32(sizeof(cp->error_data)); |
c349775e | 4207 | |
d9a729f3 WS |
4208 | /* fill in sg elements */ |
4209 | if (use_sg > h->ioaccel_maxsg) { | |
4210 | cp->sg_count = 1; | |
4211 | if (hpsa_map_ioaccel2_sg_chain_block(h, cp, c)) { | |
4212 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
4213 | scsi_dma_unmap(cmd); | |
4214 | return -1; | |
4215 | } | |
4216 | } else | |
4217 | cp->sg_count = (u8) use_sg; | |
4218 | ||
c349775e ST |
4219 | enqueue_cmd_and_start_io(h, c); |
4220 | return 0; | |
4221 | } | |
4222 | ||
4223 | /* | |
4224 | * Queue a command to the correct I/O accelerator path. | |
4225 | */ | |
4226 | static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h, | |
4227 | struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len, | |
03383736 | 4228 | u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk) |
c349775e | 4229 | { |
03383736 DB |
4230 | /* Try to honor the device's queue depth */ |
4231 | if (atomic_inc_return(&phys_disk->ioaccel_cmds_out) > | |
4232 | phys_disk->queue_depth) { | |
4233 | atomic_dec(&phys_disk->ioaccel_cmds_out); | |
4234 | return IO_ACCEL_INELIGIBLE; | |
4235 | } | |
c349775e ST |
4236 | if (h->transMethod & CFGTBL_Trans_io_accel1) |
4237 | return hpsa_scsi_ioaccel1_queue_command(h, c, ioaccel_handle, | |
03383736 DB |
4238 | cdb, cdb_len, scsi3addr, |
4239 | phys_disk); | |
c349775e ST |
4240 | else |
4241 | return hpsa_scsi_ioaccel2_queue_command(h, c, ioaccel_handle, | |
03383736 DB |
4242 | cdb, cdb_len, scsi3addr, |
4243 | phys_disk); | |
c349775e ST |
4244 | } |
4245 | ||
6b80b18f ST |
4246 | static void raid_map_helper(struct raid_map_data *map, |
4247 | int offload_to_mirror, u32 *map_index, u32 *current_group) | |
4248 | { | |
4249 | if (offload_to_mirror == 0) { | |
4250 | /* use physical disk in the first mirrored group. */ | |
2b08b3e9 | 4251 | *map_index %= le16_to_cpu(map->data_disks_per_row); |
6b80b18f ST |
4252 | return; |
4253 | } | |
4254 | do { | |
4255 | /* determine mirror group that *map_index indicates */ | |
2b08b3e9 DB |
4256 | *current_group = *map_index / |
4257 | le16_to_cpu(map->data_disks_per_row); | |
6b80b18f ST |
4258 | if (offload_to_mirror == *current_group) |
4259 | continue; | |
2b08b3e9 | 4260 | if (*current_group < le16_to_cpu(map->layout_map_count) - 1) { |
6b80b18f | 4261 | /* select map index from next group */ |
2b08b3e9 | 4262 | *map_index += le16_to_cpu(map->data_disks_per_row); |
6b80b18f ST |
4263 | (*current_group)++; |
4264 | } else { | |
4265 | /* select map index from first group */ | |
2b08b3e9 | 4266 | *map_index %= le16_to_cpu(map->data_disks_per_row); |
6b80b18f ST |
4267 | *current_group = 0; |
4268 | } | |
4269 | } while (offload_to_mirror != *current_group); | |
4270 | } | |
4271 | ||
283b4a9b SC |
4272 | /* |
4273 | * Attempt to perform offload RAID mapping for a logical volume I/O. | |
4274 | */ | |
4275 | static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info *h, | |
4276 | struct CommandList *c) | |
4277 | { | |
4278 | struct scsi_cmnd *cmd = c->scsi_cmd; | |
4279 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4280 | struct raid_map_data *map = &dev->raid_map; | |
4281 | struct raid_map_disk_data *dd = &map->data[0]; | |
4282 | int is_write = 0; | |
4283 | u32 map_index; | |
4284 | u64 first_block, last_block; | |
4285 | u32 block_cnt; | |
4286 | u32 blocks_per_row; | |
4287 | u64 first_row, last_row; | |
4288 | u32 first_row_offset, last_row_offset; | |
4289 | u32 first_column, last_column; | |
6b80b18f ST |
4290 | u64 r0_first_row, r0_last_row; |
4291 | u32 r5or6_blocks_per_row; | |
4292 | u64 r5or6_first_row, r5or6_last_row; | |
4293 | u32 r5or6_first_row_offset, r5or6_last_row_offset; | |
4294 | u32 r5or6_first_column, r5or6_last_column; | |
4295 | u32 total_disks_per_row; | |
4296 | u32 stripesize; | |
4297 | u32 first_group, last_group, current_group; | |
283b4a9b SC |
4298 | u32 map_row; |
4299 | u32 disk_handle; | |
4300 | u64 disk_block; | |
4301 | u32 disk_block_cnt; | |
4302 | u8 cdb[16]; | |
4303 | u8 cdb_len; | |
2b08b3e9 | 4304 | u16 strip_size; |
283b4a9b SC |
4305 | #if BITS_PER_LONG == 32 |
4306 | u64 tmpdiv; | |
4307 | #endif | |
6b80b18f | 4308 | int offload_to_mirror; |
283b4a9b | 4309 | |
283b4a9b SC |
4310 | /* check for valid opcode, get LBA and block count */ |
4311 | switch (cmd->cmnd[0]) { | |
4312 | case WRITE_6: | |
4313 | is_write = 1; | |
4314 | case READ_6: | |
4315 | first_block = | |
4316 | (((u64) cmd->cmnd[2]) << 8) | | |
4317 | cmd->cmnd[3]; | |
4318 | block_cnt = cmd->cmnd[4]; | |
3fa89a04 SC |
4319 | if (block_cnt == 0) |
4320 | block_cnt = 256; | |
283b4a9b SC |
4321 | break; |
4322 | case WRITE_10: | |
4323 | is_write = 1; | |
4324 | case READ_10: | |
4325 | first_block = | |
4326 | (((u64) cmd->cmnd[2]) << 24) | | |
4327 | (((u64) cmd->cmnd[3]) << 16) | | |
4328 | (((u64) cmd->cmnd[4]) << 8) | | |
4329 | cmd->cmnd[5]; | |
4330 | block_cnt = | |
4331 | (((u32) cmd->cmnd[7]) << 8) | | |
4332 | cmd->cmnd[8]; | |
4333 | break; | |
4334 | case WRITE_12: | |
4335 | is_write = 1; | |
4336 | case READ_12: | |
4337 | first_block = | |
4338 | (((u64) cmd->cmnd[2]) << 24) | | |
4339 | (((u64) cmd->cmnd[3]) << 16) | | |
4340 | (((u64) cmd->cmnd[4]) << 8) | | |
4341 | cmd->cmnd[5]; | |
4342 | block_cnt = | |
4343 | (((u32) cmd->cmnd[6]) << 24) | | |
4344 | (((u32) cmd->cmnd[7]) << 16) | | |
4345 | (((u32) cmd->cmnd[8]) << 8) | | |
4346 | cmd->cmnd[9]; | |
4347 | break; | |
4348 | case WRITE_16: | |
4349 | is_write = 1; | |
4350 | case READ_16: | |
4351 | first_block = | |
4352 | (((u64) cmd->cmnd[2]) << 56) | | |
4353 | (((u64) cmd->cmnd[3]) << 48) | | |
4354 | (((u64) cmd->cmnd[4]) << 40) | | |
4355 | (((u64) cmd->cmnd[5]) << 32) | | |
4356 | (((u64) cmd->cmnd[6]) << 24) | | |
4357 | (((u64) cmd->cmnd[7]) << 16) | | |
4358 | (((u64) cmd->cmnd[8]) << 8) | | |
4359 | cmd->cmnd[9]; | |
4360 | block_cnt = | |
4361 | (((u32) cmd->cmnd[10]) << 24) | | |
4362 | (((u32) cmd->cmnd[11]) << 16) | | |
4363 | (((u32) cmd->cmnd[12]) << 8) | | |
4364 | cmd->cmnd[13]; | |
4365 | break; | |
4366 | default: | |
4367 | return IO_ACCEL_INELIGIBLE; /* process via normal I/O path */ | |
4368 | } | |
283b4a9b SC |
4369 | last_block = first_block + block_cnt - 1; |
4370 | ||
4371 | /* check for write to non-RAID-0 */ | |
4372 | if (is_write && dev->raid_level != 0) | |
4373 | return IO_ACCEL_INELIGIBLE; | |
4374 | ||
4375 | /* check for invalid block or wraparound */ | |
2b08b3e9 DB |
4376 | if (last_block >= le64_to_cpu(map->volume_blk_cnt) || |
4377 | last_block < first_block) | |
283b4a9b SC |
4378 | return IO_ACCEL_INELIGIBLE; |
4379 | ||
4380 | /* calculate stripe information for the request */ | |
2b08b3e9 DB |
4381 | blocks_per_row = le16_to_cpu(map->data_disks_per_row) * |
4382 | le16_to_cpu(map->strip_size); | |
4383 | strip_size = le16_to_cpu(map->strip_size); | |
283b4a9b SC |
4384 | #if BITS_PER_LONG == 32 |
4385 | tmpdiv = first_block; | |
4386 | (void) do_div(tmpdiv, blocks_per_row); | |
4387 | first_row = tmpdiv; | |
4388 | tmpdiv = last_block; | |
4389 | (void) do_div(tmpdiv, blocks_per_row); | |
4390 | last_row = tmpdiv; | |
4391 | first_row_offset = (u32) (first_block - (first_row * blocks_per_row)); | |
4392 | last_row_offset = (u32) (last_block - (last_row * blocks_per_row)); | |
4393 | tmpdiv = first_row_offset; | |
2b08b3e9 | 4394 | (void) do_div(tmpdiv, strip_size); |
283b4a9b SC |
4395 | first_column = tmpdiv; |
4396 | tmpdiv = last_row_offset; | |
2b08b3e9 | 4397 | (void) do_div(tmpdiv, strip_size); |
283b4a9b SC |
4398 | last_column = tmpdiv; |
4399 | #else | |
4400 | first_row = first_block / blocks_per_row; | |
4401 | last_row = last_block / blocks_per_row; | |
4402 | first_row_offset = (u32) (first_block - (first_row * blocks_per_row)); | |
4403 | last_row_offset = (u32) (last_block - (last_row * blocks_per_row)); | |
2b08b3e9 DB |
4404 | first_column = first_row_offset / strip_size; |
4405 | last_column = last_row_offset / strip_size; | |
283b4a9b SC |
4406 | #endif |
4407 | ||
4408 | /* if this isn't a single row/column then give to the controller */ | |
4409 | if ((first_row != last_row) || (first_column != last_column)) | |
4410 | return IO_ACCEL_INELIGIBLE; | |
4411 | ||
4412 | /* proceeding with driver mapping */ | |
2b08b3e9 DB |
4413 | total_disks_per_row = le16_to_cpu(map->data_disks_per_row) + |
4414 | le16_to_cpu(map->metadata_disks_per_row); | |
283b4a9b | 4415 | map_row = ((u32)(first_row >> map->parity_rotation_shift)) % |
2b08b3e9 | 4416 | le16_to_cpu(map->row_cnt); |
6b80b18f ST |
4417 | map_index = (map_row * total_disks_per_row) + first_column; |
4418 | ||
4419 | switch (dev->raid_level) { | |
4420 | case HPSA_RAID_0: | |
4421 | break; /* nothing special to do */ | |
4422 | case HPSA_RAID_1: | |
4423 | /* Handles load balance across RAID 1 members. | |
4424 | * (2-drive R1 and R10 with even # of drives.) | |
4425 | * Appropriate for SSDs, not optimal for HDDs | |
283b4a9b | 4426 | */ |
2b08b3e9 | 4427 | BUG_ON(le16_to_cpu(map->layout_map_count) != 2); |
283b4a9b | 4428 | if (dev->offload_to_mirror) |
2b08b3e9 | 4429 | map_index += le16_to_cpu(map->data_disks_per_row); |
283b4a9b | 4430 | dev->offload_to_mirror = !dev->offload_to_mirror; |
6b80b18f ST |
4431 | break; |
4432 | case HPSA_RAID_ADM: | |
4433 | /* Handles N-way mirrors (R1-ADM) | |
4434 | * and R10 with # of drives divisible by 3.) | |
4435 | */ | |
2b08b3e9 | 4436 | BUG_ON(le16_to_cpu(map->layout_map_count) != 3); |
6b80b18f ST |
4437 | |
4438 | offload_to_mirror = dev->offload_to_mirror; | |
4439 | raid_map_helper(map, offload_to_mirror, | |
4440 | &map_index, ¤t_group); | |
4441 | /* set mirror group to use next time */ | |
4442 | offload_to_mirror = | |
2b08b3e9 DB |
4443 | (offload_to_mirror >= |
4444 | le16_to_cpu(map->layout_map_count) - 1) | |
6b80b18f | 4445 | ? 0 : offload_to_mirror + 1; |
6b80b18f ST |
4446 | dev->offload_to_mirror = offload_to_mirror; |
4447 | /* Avoid direct use of dev->offload_to_mirror within this | |
4448 | * function since multiple threads might simultaneously | |
4449 | * increment it beyond the range of dev->layout_map_count -1. | |
4450 | */ | |
4451 | break; | |
4452 | case HPSA_RAID_5: | |
4453 | case HPSA_RAID_6: | |
2b08b3e9 | 4454 | if (le16_to_cpu(map->layout_map_count) <= 1) |
6b80b18f ST |
4455 | break; |
4456 | ||
4457 | /* Verify first and last block are in same RAID group */ | |
4458 | r5or6_blocks_per_row = | |
2b08b3e9 DB |
4459 | le16_to_cpu(map->strip_size) * |
4460 | le16_to_cpu(map->data_disks_per_row); | |
6b80b18f | 4461 | BUG_ON(r5or6_blocks_per_row == 0); |
2b08b3e9 DB |
4462 | stripesize = r5or6_blocks_per_row * |
4463 | le16_to_cpu(map->layout_map_count); | |
6b80b18f ST |
4464 | #if BITS_PER_LONG == 32 |
4465 | tmpdiv = first_block; | |
4466 | first_group = do_div(tmpdiv, stripesize); | |
4467 | tmpdiv = first_group; | |
4468 | (void) do_div(tmpdiv, r5or6_blocks_per_row); | |
4469 | first_group = tmpdiv; | |
4470 | tmpdiv = last_block; | |
4471 | last_group = do_div(tmpdiv, stripesize); | |
4472 | tmpdiv = last_group; | |
4473 | (void) do_div(tmpdiv, r5or6_blocks_per_row); | |
4474 | last_group = tmpdiv; | |
4475 | #else | |
4476 | first_group = (first_block % stripesize) / r5or6_blocks_per_row; | |
4477 | last_group = (last_block % stripesize) / r5or6_blocks_per_row; | |
6b80b18f | 4478 | #endif |
000ff7c2 | 4479 | if (first_group != last_group) |
6b80b18f ST |
4480 | return IO_ACCEL_INELIGIBLE; |
4481 | ||
4482 | /* Verify request is in a single row of RAID 5/6 */ | |
4483 | #if BITS_PER_LONG == 32 | |
4484 | tmpdiv = first_block; | |
4485 | (void) do_div(tmpdiv, stripesize); | |
4486 | first_row = r5or6_first_row = r0_first_row = tmpdiv; | |
4487 | tmpdiv = last_block; | |
4488 | (void) do_div(tmpdiv, stripesize); | |
4489 | r5or6_last_row = r0_last_row = tmpdiv; | |
4490 | #else | |
4491 | first_row = r5or6_first_row = r0_first_row = | |
4492 | first_block / stripesize; | |
4493 | r5or6_last_row = r0_last_row = last_block / stripesize; | |
4494 | #endif | |
4495 | if (r5or6_first_row != r5or6_last_row) | |
4496 | return IO_ACCEL_INELIGIBLE; | |
4497 | ||
4498 | ||
4499 | /* Verify request is in a single column */ | |
4500 | #if BITS_PER_LONG == 32 | |
4501 | tmpdiv = first_block; | |
4502 | first_row_offset = do_div(tmpdiv, stripesize); | |
4503 | tmpdiv = first_row_offset; | |
4504 | first_row_offset = (u32) do_div(tmpdiv, r5or6_blocks_per_row); | |
4505 | r5or6_first_row_offset = first_row_offset; | |
4506 | tmpdiv = last_block; | |
4507 | r5or6_last_row_offset = do_div(tmpdiv, stripesize); | |
4508 | tmpdiv = r5or6_last_row_offset; | |
4509 | r5or6_last_row_offset = do_div(tmpdiv, r5or6_blocks_per_row); | |
4510 | tmpdiv = r5or6_first_row_offset; | |
4511 | (void) do_div(tmpdiv, map->strip_size); | |
4512 | first_column = r5or6_first_column = tmpdiv; | |
4513 | tmpdiv = r5or6_last_row_offset; | |
4514 | (void) do_div(tmpdiv, map->strip_size); | |
4515 | r5or6_last_column = tmpdiv; | |
4516 | #else | |
4517 | first_row_offset = r5or6_first_row_offset = | |
4518 | (u32)((first_block % stripesize) % | |
4519 | r5or6_blocks_per_row); | |
4520 | ||
4521 | r5or6_last_row_offset = | |
4522 | (u32)((last_block % stripesize) % | |
4523 | r5or6_blocks_per_row); | |
4524 | ||
4525 | first_column = r5or6_first_column = | |
2b08b3e9 | 4526 | r5or6_first_row_offset / le16_to_cpu(map->strip_size); |
6b80b18f | 4527 | r5or6_last_column = |
2b08b3e9 | 4528 | r5or6_last_row_offset / le16_to_cpu(map->strip_size); |
6b80b18f ST |
4529 | #endif |
4530 | if (r5or6_first_column != r5or6_last_column) | |
4531 | return IO_ACCEL_INELIGIBLE; | |
4532 | ||
4533 | /* Request is eligible */ | |
4534 | map_row = ((u32)(first_row >> map->parity_rotation_shift)) % | |
2b08b3e9 | 4535 | le16_to_cpu(map->row_cnt); |
6b80b18f ST |
4536 | |
4537 | map_index = (first_group * | |
2b08b3e9 | 4538 | (le16_to_cpu(map->row_cnt) * total_disks_per_row)) + |
6b80b18f ST |
4539 | (map_row * total_disks_per_row) + first_column; |
4540 | break; | |
4541 | default: | |
4542 | return IO_ACCEL_INELIGIBLE; | |
283b4a9b | 4543 | } |
6b80b18f | 4544 | |
07543e0c SC |
4545 | if (unlikely(map_index >= RAID_MAP_MAX_ENTRIES)) |
4546 | return IO_ACCEL_INELIGIBLE; | |
4547 | ||
03383736 DB |
4548 | c->phys_disk = dev->phys_disk[map_index]; |
4549 | ||
283b4a9b | 4550 | disk_handle = dd[map_index].ioaccel_handle; |
2b08b3e9 DB |
4551 | disk_block = le64_to_cpu(map->disk_starting_blk) + |
4552 | first_row * le16_to_cpu(map->strip_size) + | |
4553 | (first_row_offset - first_column * | |
4554 | le16_to_cpu(map->strip_size)); | |
283b4a9b SC |
4555 | disk_block_cnt = block_cnt; |
4556 | ||
4557 | /* handle differing logical/physical block sizes */ | |
4558 | if (map->phys_blk_shift) { | |
4559 | disk_block <<= map->phys_blk_shift; | |
4560 | disk_block_cnt <<= map->phys_blk_shift; | |
4561 | } | |
4562 | BUG_ON(disk_block_cnt > 0xffff); | |
4563 | ||
4564 | /* build the new CDB for the physical disk I/O */ | |
4565 | if (disk_block > 0xffffffff) { | |
4566 | cdb[0] = is_write ? WRITE_16 : READ_16; | |
4567 | cdb[1] = 0; | |
4568 | cdb[2] = (u8) (disk_block >> 56); | |
4569 | cdb[3] = (u8) (disk_block >> 48); | |
4570 | cdb[4] = (u8) (disk_block >> 40); | |
4571 | cdb[5] = (u8) (disk_block >> 32); | |
4572 | cdb[6] = (u8) (disk_block >> 24); | |
4573 | cdb[7] = (u8) (disk_block >> 16); | |
4574 | cdb[8] = (u8) (disk_block >> 8); | |
4575 | cdb[9] = (u8) (disk_block); | |
4576 | cdb[10] = (u8) (disk_block_cnt >> 24); | |
4577 | cdb[11] = (u8) (disk_block_cnt >> 16); | |
4578 | cdb[12] = (u8) (disk_block_cnt >> 8); | |
4579 | cdb[13] = (u8) (disk_block_cnt); | |
4580 | cdb[14] = 0; | |
4581 | cdb[15] = 0; | |
4582 | cdb_len = 16; | |
4583 | } else { | |
4584 | cdb[0] = is_write ? WRITE_10 : READ_10; | |
4585 | cdb[1] = 0; | |
4586 | cdb[2] = (u8) (disk_block >> 24); | |
4587 | cdb[3] = (u8) (disk_block >> 16); | |
4588 | cdb[4] = (u8) (disk_block >> 8); | |
4589 | cdb[5] = (u8) (disk_block); | |
4590 | cdb[6] = 0; | |
4591 | cdb[7] = (u8) (disk_block_cnt >> 8); | |
4592 | cdb[8] = (u8) (disk_block_cnt); | |
4593 | cdb[9] = 0; | |
4594 | cdb_len = 10; | |
4595 | } | |
4596 | return hpsa_scsi_ioaccel_queue_command(h, c, disk_handle, cdb, cdb_len, | |
03383736 DB |
4597 | dev->scsi3addr, |
4598 | dev->phys_disk[map_index]); | |
283b4a9b SC |
4599 | } |
4600 | ||
25163bd5 WS |
4601 | /* |
4602 | * Submit commands down the "normal" RAID stack path | |
4603 | * All callers to hpsa_ciss_submit must check lockup_detected | |
4604 | * beforehand, before (opt.) and after calling cmd_alloc | |
4605 | */ | |
574f05d3 SC |
4606 | static int hpsa_ciss_submit(struct ctlr_info *h, |
4607 | struct CommandList *c, struct scsi_cmnd *cmd, | |
4608 | unsigned char scsi3addr[]) | |
edd16368 | 4609 | { |
edd16368 | 4610 | cmd->host_scribble = (unsigned char *) c; |
edd16368 SC |
4611 | c->cmd_type = CMD_SCSI; |
4612 | c->scsi_cmd = cmd; | |
4613 | c->Header.ReplyQueue = 0; /* unused in simple mode */ | |
4614 | memcpy(&c->Header.LUN.LunAddrBytes[0], &scsi3addr[0], 8); | |
f2405db8 | 4615 | c->Header.tag = cpu_to_le64((c->cmdindex << DIRECT_LOOKUP_SHIFT)); |
edd16368 SC |
4616 | |
4617 | /* Fill in the request block... */ | |
4618 | ||
4619 | c->Request.Timeout = 0; | |
edd16368 SC |
4620 | BUG_ON(cmd->cmd_len > sizeof(c->Request.CDB)); |
4621 | c->Request.CDBLen = cmd->cmd_len; | |
4622 | memcpy(c->Request.CDB, cmd->cmnd, cmd->cmd_len); | |
edd16368 SC |
4623 | switch (cmd->sc_data_direction) { |
4624 | case DMA_TO_DEVICE: | |
a505b86f SC |
4625 | c->Request.type_attr_dir = |
4626 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_WRITE); | |
edd16368 SC |
4627 | break; |
4628 | case DMA_FROM_DEVICE: | |
a505b86f SC |
4629 | c->Request.type_attr_dir = |
4630 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_READ); | |
edd16368 SC |
4631 | break; |
4632 | case DMA_NONE: | |
a505b86f SC |
4633 | c->Request.type_attr_dir = |
4634 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_NONE); | |
edd16368 SC |
4635 | break; |
4636 | case DMA_BIDIRECTIONAL: | |
4637 | /* This can happen if a buggy application does a scsi passthru | |
4638 | * and sets both inlen and outlen to non-zero. ( see | |
4639 | * ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() ) | |
4640 | */ | |
4641 | ||
a505b86f SC |
4642 | c->Request.type_attr_dir = |
4643 | TYPE_ATTR_DIR(TYPE_CMD, ATTR_SIMPLE, XFER_RSVD); | |
edd16368 SC |
4644 | /* This is technically wrong, and hpsa controllers should |
4645 | * reject it with CMD_INVALID, which is the most correct | |
4646 | * response, but non-fibre backends appear to let it | |
4647 | * slide by, and give the same results as if this field | |
4648 | * were set correctly. Either way is acceptable for | |
4649 | * our purposes here. | |
4650 | */ | |
4651 | ||
4652 | break; | |
4653 | ||
4654 | default: | |
4655 | dev_err(&h->pdev->dev, "unknown data direction: %d\n", | |
4656 | cmd->sc_data_direction); | |
4657 | BUG(); | |
4658 | break; | |
4659 | } | |
4660 | ||
33a2ffce | 4661 | if (hpsa_scatter_gather(h, c, cmd) < 0) { /* Fill SG list */ |
73153fe5 | 4662 | hpsa_cmd_resolve_and_free(h, c); |
edd16368 SC |
4663 | return SCSI_MLQUEUE_HOST_BUSY; |
4664 | } | |
4665 | enqueue_cmd_and_start_io(h, c); | |
4666 | /* the cmd'll come back via intr handler in complete_scsi_command() */ | |
4667 | return 0; | |
4668 | } | |
4669 | ||
360c73bd SC |
4670 | static void hpsa_cmd_init(struct ctlr_info *h, int index, |
4671 | struct CommandList *c) | |
4672 | { | |
4673 | dma_addr_t cmd_dma_handle, err_dma_handle; | |
4674 | ||
4675 | /* Zero out all of commandlist except the last field, refcount */ | |
4676 | memset(c, 0, offsetof(struct CommandList, refcount)); | |
4677 | c->Header.tag = cpu_to_le64((u64) (index << DIRECT_LOOKUP_SHIFT)); | |
4678 | cmd_dma_handle = h->cmd_pool_dhandle + index * sizeof(*c); | |
4679 | c->err_info = h->errinfo_pool + index; | |
4680 | memset(c->err_info, 0, sizeof(*c->err_info)); | |
4681 | err_dma_handle = h->errinfo_pool_dhandle | |
4682 | + index * sizeof(*c->err_info); | |
4683 | c->cmdindex = index; | |
4684 | c->busaddr = (u32) cmd_dma_handle; | |
4685 | c->ErrDesc.Addr = cpu_to_le64((u64) err_dma_handle); | |
4686 | c->ErrDesc.Len = cpu_to_le32((u32) sizeof(*c->err_info)); | |
4687 | c->h = h; | |
a58e7e53 | 4688 | c->scsi_cmd = SCSI_CMD_IDLE; |
360c73bd SC |
4689 | } |
4690 | ||
4691 | static void hpsa_preinitialize_commands(struct ctlr_info *h) | |
4692 | { | |
4693 | int i; | |
4694 | ||
4695 | for (i = 0; i < h->nr_cmds; i++) { | |
4696 | struct CommandList *c = h->cmd_pool + i; | |
4697 | ||
4698 | hpsa_cmd_init(h, i, c); | |
4699 | atomic_set(&c->refcount, 0); | |
4700 | } | |
4701 | } | |
4702 | ||
4703 | static inline void hpsa_cmd_partial_init(struct ctlr_info *h, int index, | |
4704 | struct CommandList *c) | |
4705 | { | |
4706 | dma_addr_t cmd_dma_handle = h->cmd_pool_dhandle + index * sizeof(*c); | |
4707 | ||
73153fe5 WS |
4708 | BUG_ON(c->cmdindex != index); |
4709 | ||
360c73bd SC |
4710 | memset(c->Request.CDB, 0, sizeof(c->Request.CDB)); |
4711 | memset(c->err_info, 0, sizeof(*c->err_info)); | |
4712 | c->busaddr = (u32) cmd_dma_handle; | |
4713 | } | |
4714 | ||
592a0ad5 WS |
4715 | static int hpsa_ioaccel_submit(struct ctlr_info *h, |
4716 | struct CommandList *c, struct scsi_cmnd *cmd, | |
4717 | unsigned char *scsi3addr) | |
4718 | { | |
4719 | struct hpsa_scsi_dev_t *dev = cmd->device->hostdata; | |
4720 | int rc = IO_ACCEL_INELIGIBLE; | |
4721 | ||
4722 | cmd->host_scribble = (unsigned char *) c; | |
4723 | ||
4724 | if (dev->offload_enabled) { | |
4725 | hpsa_cmd_init(h, c->cmdindex, c); | |
4726 | c->cmd_type = CMD_SCSI; | |
4727 | c->scsi_cmd = cmd; | |
4728 | rc = hpsa_scsi_ioaccel_raid_map(h, c); | |
4729 | if (rc < 0) /* scsi_dma_map failed. */ | |
4730 | rc = SCSI_MLQUEUE_HOST_BUSY; | |
a3144e0b | 4731 | } else if (dev->hba_ioaccel_enabled) { |
592a0ad5 WS |
4732 | hpsa_cmd_init(h, c->cmdindex, c); |
4733 | c->cmd_type = CMD_SCSI; | |
4734 | c->scsi_cmd = cmd; | |
4735 | rc = hpsa_scsi_ioaccel_direct_map(h, c); | |
4736 | if (rc < 0) /* scsi_dma_map failed. */ | |
4737 | rc = SCSI_MLQUEUE_HOST_BUSY; | |
4738 | } | |
4739 | return rc; | |
4740 | } | |
4741 | ||
080ef1cc DB |
4742 | static void hpsa_command_resubmit_worker(struct work_struct *work) |
4743 | { | |
4744 | struct scsi_cmnd *cmd; | |
4745 | struct hpsa_scsi_dev_t *dev; | |
8a0ff92c | 4746 | struct CommandList *c = container_of(work, struct CommandList, work); |
080ef1cc DB |
4747 | |
4748 | cmd = c->scsi_cmd; | |
4749 | dev = cmd->device->hostdata; | |
4750 | if (!dev) { | |
4751 | cmd->result = DID_NO_CONNECT << 16; | |
8a0ff92c | 4752 | return hpsa_cmd_free_and_done(c->h, c, cmd); |
080ef1cc | 4753 | } |
d604f533 WS |
4754 | if (c->reset_pending) |
4755 | return hpsa_cmd_resolve_and_free(c->h, c); | |
a58e7e53 WS |
4756 | if (c->abort_pending) |
4757 | return hpsa_cmd_abort_and_free(c->h, c, cmd); | |
592a0ad5 WS |
4758 | if (c->cmd_type == CMD_IOACCEL2) { |
4759 | struct ctlr_info *h = c->h; | |
4760 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
4761 | int rc; | |
4762 | ||
4763 | if (c2->error_data.serv_response == | |
4764 | IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL) { | |
4765 | rc = hpsa_ioaccel_submit(h, c, cmd, dev->scsi3addr); | |
4766 | if (rc == 0) | |
4767 | return; | |
4768 | if (rc == SCSI_MLQUEUE_HOST_BUSY) { | |
4769 | /* | |
4770 | * If we get here, it means dma mapping failed. | |
4771 | * Try again via scsi mid layer, which will | |
4772 | * then get SCSI_MLQUEUE_HOST_BUSY. | |
4773 | */ | |
4774 | cmd->result = DID_IMM_RETRY << 16; | |
8a0ff92c | 4775 | return hpsa_cmd_free_and_done(h, c, cmd); |
592a0ad5 WS |
4776 | } |
4777 | /* else, fall thru and resubmit down CISS path */ | |
4778 | } | |
4779 | } | |
360c73bd | 4780 | hpsa_cmd_partial_init(c->h, c->cmdindex, c); |
080ef1cc DB |
4781 | if (hpsa_ciss_submit(c->h, c, cmd, dev->scsi3addr)) { |
4782 | /* | |
4783 | * If we get here, it means dma mapping failed. Try | |
4784 | * again via scsi mid layer, which will then get | |
4785 | * SCSI_MLQUEUE_HOST_BUSY. | |
592a0ad5 WS |
4786 | * |
4787 | * hpsa_ciss_submit will have already freed c | |
4788 | * if it encountered a dma mapping failure. | |
080ef1cc DB |
4789 | */ |
4790 | cmd->result = DID_IMM_RETRY << 16; | |
4791 | cmd->scsi_done(cmd); | |
4792 | } | |
4793 | } | |
4794 | ||
574f05d3 SC |
4795 | /* Running in struct Scsi_Host->host_lock less mode */ |
4796 | static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd) | |
4797 | { | |
4798 | struct ctlr_info *h; | |
4799 | struct hpsa_scsi_dev_t *dev; | |
4800 | unsigned char scsi3addr[8]; | |
4801 | struct CommandList *c; | |
4802 | int rc = 0; | |
4803 | ||
4804 | /* Get the ptr to our adapter structure out of cmd->host. */ | |
4805 | h = sdev_to_hba(cmd->device); | |
73153fe5 WS |
4806 | |
4807 | BUG_ON(cmd->request->tag < 0); | |
4808 | ||
574f05d3 SC |
4809 | dev = cmd->device->hostdata; |
4810 | if (!dev) { | |
4811 | cmd->result = DID_NO_CONNECT << 16; | |
4812 | cmd->scsi_done(cmd); | |
4813 | return 0; | |
4814 | } | |
574f05d3 | 4815 | |
73153fe5 | 4816 | memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr)); |
bf43caf3 | 4817 | |
407863cb | 4818 | if (unlikely(lockup_detected(h))) { |
25163bd5 | 4819 | cmd->result = DID_NO_CONNECT << 16; |
407863cb SC |
4820 | cmd->scsi_done(cmd); |
4821 | return 0; | |
4822 | } | |
73153fe5 | 4823 | c = cmd_tagged_alloc(h, cmd); |
574f05d3 | 4824 | |
407863cb SC |
4825 | /* |
4826 | * Call alternate submit routine for I/O accelerated commands. | |
574f05d3 SC |
4827 | * Retries always go down the normal I/O path. |
4828 | */ | |
4829 | if (likely(cmd->retries == 0 && | |
4830 | cmd->request->cmd_type == REQ_TYPE_FS && | |
4831 | h->acciopath_status)) { | |
592a0ad5 WS |
4832 | rc = hpsa_ioaccel_submit(h, c, cmd, scsi3addr); |
4833 | if (rc == 0) | |
4834 | return 0; | |
4835 | if (rc == SCSI_MLQUEUE_HOST_BUSY) { | |
73153fe5 | 4836 | hpsa_cmd_resolve_and_free(h, c); |
592a0ad5 | 4837 | return SCSI_MLQUEUE_HOST_BUSY; |
574f05d3 SC |
4838 | } |
4839 | } | |
4840 | return hpsa_ciss_submit(h, c, cmd, scsi3addr); | |
4841 | } | |
4842 | ||
8ebc9248 | 4843 | static void hpsa_scan_complete(struct ctlr_info *h) |
5f389360 SC |
4844 | { |
4845 | unsigned long flags; | |
4846 | ||
8ebc9248 WS |
4847 | spin_lock_irqsave(&h->scan_lock, flags); |
4848 | h->scan_finished = 1; | |
4849 | wake_up_all(&h->scan_wait_queue); | |
4850 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
5f389360 SC |
4851 | } |
4852 | ||
a08a8471 SC |
4853 | static void hpsa_scan_start(struct Scsi_Host *sh) |
4854 | { | |
4855 | struct ctlr_info *h = shost_to_hba(sh); | |
4856 | unsigned long flags; | |
4857 | ||
8ebc9248 WS |
4858 | /* |
4859 | * Don't let rescans be initiated on a controller known to be locked | |
4860 | * up. If the controller locks up *during* a rescan, that thread is | |
4861 | * probably hosed, but at least we can prevent new rescan threads from | |
4862 | * piling up on a locked up controller. | |
4863 | */ | |
4864 | if (unlikely(lockup_detected(h))) | |
4865 | return hpsa_scan_complete(h); | |
5f389360 | 4866 | |
a08a8471 SC |
4867 | /* wait until any scan already in progress is finished. */ |
4868 | while (1) { | |
4869 | spin_lock_irqsave(&h->scan_lock, flags); | |
4870 | if (h->scan_finished) | |
4871 | break; | |
4872 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
4873 | wait_event(h->scan_wait_queue, h->scan_finished); | |
4874 | /* Note: We don't need to worry about a race between this | |
4875 | * thread and driver unload because the midlayer will | |
4876 | * have incremented the reference count, so unload won't | |
4877 | * happen if we're in here. | |
4878 | */ | |
4879 | } | |
4880 | h->scan_finished = 0; /* mark scan as in progress */ | |
4881 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
4882 | ||
8ebc9248 WS |
4883 | if (unlikely(lockup_detected(h))) |
4884 | return hpsa_scan_complete(h); | |
5f389360 | 4885 | |
a08a8471 SC |
4886 | hpsa_update_scsi_devices(h, h->scsi_host->host_no); |
4887 | ||
8ebc9248 | 4888 | hpsa_scan_complete(h); |
a08a8471 SC |
4889 | } |
4890 | ||
7c0a0229 DB |
4891 | static int hpsa_change_queue_depth(struct scsi_device *sdev, int qdepth) |
4892 | { | |
03383736 DB |
4893 | struct hpsa_scsi_dev_t *logical_drive = sdev->hostdata; |
4894 | ||
4895 | if (!logical_drive) | |
4896 | return -ENODEV; | |
7c0a0229 DB |
4897 | |
4898 | if (qdepth < 1) | |
4899 | qdepth = 1; | |
03383736 DB |
4900 | else if (qdepth > logical_drive->queue_depth) |
4901 | qdepth = logical_drive->queue_depth; | |
4902 | ||
4903 | return scsi_change_queue_depth(sdev, qdepth); | |
7c0a0229 DB |
4904 | } |
4905 | ||
a08a8471 SC |
4906 | static int hpsa_scan_finished(struct Scsi_Host *sh, |
4907 | unsigned long elapsed_time) | |
4908 | { | |
4909 | struct ctlr_info *h = shost_to_hba(sh); | |
4910 | unsigned long flags; | |
4911 | int finished; | |
4912 | ||
4913 | spin_lock_irqsave(&h->scan_lock, flags); | |
4914 | finished = h->scan_finished; | |
4915 | spin_unlock_irqrestore(&h->scan_lock, flags); | |
4916 | return finished; | |
4917 | } | |
4918 | ||
2946e82b | 4919 | static int hpsa_scsi_host_alloc(struct ctlr_info *h) |
edd16368 | 4920 | { |
b705690d SC |
4921 | struct Scsi_Host *sh; |
4922 | int error; | |
edd16368 | 4923 | |
b705690d | 4924 | sh = scsi_host_alloc(&hpsa_driver_template, sizeof(h)); |
2946e82b RE |
4925 | if (sh == NULL) { |
4926 | dev_err(&h->pdev->dev, "scsi_host_alloc failed\n"); | |
4927 | return -ENOMEM; | |
4928 | } | |
b705690d SC |
4929 | |
4930 | sh->io_port = 0; | |
4931 | sh->n_io_port = 0; | |
4932 | sh->this_id = -1; | |
4933 | sh->max_channel = 3; | |
4934 | sh->max_cmd_len = MAX_COMMAND_SIZE; | |
4935 | sh->max_lun = HPSA_MAX_LUN; | |
4936 | sh->max_id = HPSA_MAX_LUN; | |
41ce4c35 | 4937 | sh->can_queue = h->nr_cmds - HPSA_NRESERVED_CMDS; |
03383736 | 4938 | sh->cmd_per_lun = sh->can_queue; |
b705690d | 4939 | sh->sg_tablesize = h->maxsgentries; |
b705690d SC |
4940 | sh->hostdata[0] = (unsigned long) h; |
4941 | sh->irq = h->intr[h->intr_mode]; | |
4942 | sh->unique_id = sh->irq; | |
73153fe5 WS |
4943 | error = scsi_init_shared_tag_map(sh, sh->can_queue); |
4944 | if (error) { | |
4945 | dev_err(&h->pdev->dev, | |
4946 | "%s: scsi_init_shared_tag_map failed for controller %d\n", | |
4947 | __func__, h->ctlr); | |
2946e82b RE |
4948 | scsi_host_put(sh); |
4949 | return error; | |
73153fe5 | 4950 | } |
2946e82b | 4951 | h->scsi_host = sh; |
b705690d | 4952 | return 0; |
2946e82b | 4953 | } |
b705690d | 4954 | |
2946e82b RE |
4955 | static int hpsa_scsi_add_host(struct ctlr_info *h) |
4956 | { | |
4957 | int rv; | |
4958 | ||
4959 | rv = scsi_add_host(h->scsi_host, &h->pdev->dev); | |
4960 | if (rv) { | |
4961 | dev_err(&h->pdev->dev, "scsi_add_host failed\n"); | |
4962 | return rv; | |
4963 | } | |
4964 | scsi_scan_host(h->scsi_host); | |
4965 | return 0; | |
edd16368 SC |
4966 | } |
4967 | ||
73153fe5 WS |
4968 | /* |
4969 | * The block layer has already gone to the trouble of picking out a unique, | |
4970 | * small-integer tag for this request. We use an offset from that value as | |
4971 | * an index to select our command block. (The offset allows us to reserve the | |
4972 | * low-numbered entries for our own uses.) | |
4973 | */ | |
4974 | static int hpsa_get_cmd_index(struct scsi_cmnd *scmd) | |
4975 | { | |
4976 | int idx = scmd->request->tag; | |
4977 | ||
4978 | if (idx < 0) | |
4979 | return idx; | |
4980 | ||
4981 | /* Offset to leave space for internal cmds. */ | |
4982 | return idx += HPSA_NRESERVED_CMDS; | |
4983 | } | |
4984 | ||
b69324ff WS |
4985 | /* |
4986 | * Send a TEST_UNIT_READY command to the specified LUN using the specified | |
4987 | * reply queue; returns zero if the unit is ready, and non-zero otherwise. | |
4988 | */ | |
4989 | static int hpsa_send_test_unit_ready(struct ctlr_info *h, | |
4990 | struct CommandList *c, unsigned char lunaddr[], | |
4991 | int reply_queue) | |
4992 | { | |
4993 | int rc; | |
4994 | ||
4995 | /* Send the Test Unit Ready, fill_cmd can't fail, no mapping */ | |
4996 | (void) fill_cmd(c, TEST_UNIT_READY, h, | |
4997 | NULL, 0, 0, lunaddr, TYPE_CMD); | |
4998 | rc = hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT); | |
4999 | if (rc) | |
5000 | return rc; | |
5001 | /* no unmap needed here because no data xfer. */ | |
5002 | ||
5003 | /* Check if the unit is already ready. */ | |
5004 | if (c->err_info->CommandStatus == CMD_SUCCESS) | |
5005 | return 0; | |
5006 | ||
5007 | /* | |
5008 | * The first command sent after reset will receive "unit attention" to | |
5009 | * indicate that the LUN has been reset...this is actually what we're | |
5010 | * looking for (but, success is good too). | |
5011 | */ | |
5012 | if (c->err_info->CommandStatus == CMD_TARGET_STATUS && | |
5013 | c->err_info->ScsiStatus == SAM_STAT_CHECK_CONDITION && | |
5014 | (c->err_info->SenseInfo[2] == NO_SENSE || | |
5015 | c->err_info->SenseInfo[2] == UNIT_ATTENTION)) | |
5016 | return 0; | |
5017 | ||
5018 | return 1; | |
5019 | } | |
5020 | ||
5021 | /* | |
5022 | * Wait for a TEST_UNIT_READY command to complete, retrying as necessary; | |
5023 | * returns zero when the unit is ready, and non-zero when giving up. | |
5024 | */ | |
5025 | static int hpsa_wait_for_test_unit_ready(struct ctlr_info *h, | |
5026 | struct CommandList *c, | |
5027 | unsigned char lunaddr[], int reply_queue) | |
edd16368 | 5028 | { |
8919358e | 5029 | int rc; |
edd16368 SC |
5030 | int count = 0; |
5031 | int waittime = 1; /* seconds */ | |
edd16368 SC |
5032 | |
5033 | /* Send test unit ready until device ready, or give up. */ | |
b69324ff | 5034 | for (count = 0; count < HPSA_TUR_RETRY_LIMIT; count++) { |
edd16368 | 5035 | |
b69324ff WS |
5036 | /* |
5037 | * Wait for a bit. do this first, because if we send | |
edd16368 SC |
5038 | * the TUR right away, the reset will just abort it. |
5039 | */ | |
5040 | msleep(1000 * waittime); | |
b69324ff WS |
5041 | |
5042 | rc = hpsa_send_test_unit_ready(h, c, lunaddr, reply_queue); | |
5043 | if (!rc) | |
5044 | break; | |
edd16368 SC |
5045 | |
5046 | /* Increase wait time with each try, up to a point. */ | |
5047 | if (waittime < HPSA_MAX_WAIT_INTERVAL_SECS) | |
b69324ff | 5048 | waittime *= 2; |
edd16368 | 5049 | |
b69324ff WS |
5050 | dev_warn(&h->pdev->dev, |
5051 | "waiting %d secs for device to become ready.\n", | |
5052 | waittime); | |
5053 | } | |
edd16368 | 5054 | |
b69324ff WS |
5055 | return rc; |
5056 | } | |
edd16368 | 5057 | |
b69324ff WS |
5058 | static int wait_for_device_to_become_ready(struct ctlr_info *h, |
5059 | unsigned char lunaddr[], | |
5060 | int reply_queue) | |
5061 | { | |
5062 | int first_queue; | |
5063 | int last_queue; | |
5064 | int rq; | |
5065 | int rc = 0; | |
5066 | struct CommandList *c; | |
5067 | ||
5068 | c = cmd_alloc(h); | |
5069 | ||
5070 | /* | |
5071 | * If no specific reply queue was requested, then send the TUR | |
5072 | * repeatedly, requesting a reply on each reply queue; otherwise execute | |
5073 | * the loop exactly once using only the specified queue. | |
5074 | */ | |
5075 | if (reply_queue == DEFAULT_REPLY_QUEUE) { | |
5076 | first_queue = 0; | |
5077 | last_queue = h->nreply_queues - 1; | |
5078 | } else { | |
5079 | first_queue = reply_queue; | |
5080 | last_queue = reply_queue; | |
5081 | } | |
5082 | ||
5083 | for (rq = first_queue; rq <= last_queue; rq++) { | |
5084 | rc = hpsa_wait_for_test_unit_ready(h, c, lunaddr, rq); | |
5085 | if (rc) | |
edd16368 | 5086 | break; |
edd16368 SC |
5087 | } |
5088 | ||
5089 | if (rc) | |
5090 | dev_warn(&h->pdev->dev, "giving up on device.\n"); | |
5091 | else | |
5092 | dev_warn(&h->pdev->dev, "device is ready.\n"); | |
5093 | ||
45fcb86e | 5094 | cmd_free(h, c); |
edd16368 SC |
5095 | return rc; |
5096 | } | |
5097 | ||
5098 | /* Need at least one of these error handlers to keep ../scsi/hosts.c from | |
5099 | * complaining. Doing a host- or bus-reset can't do anything good here. | |
5100 | */ | |
5101 | static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd) | |
5102 | { | |
5103 | int rc; | |
5104 | struct ctlr_info *h; | |
5105 | struct hpsa_scsi_dev_t *dev; | |
2dc127bb | 5106 | char msg[48]; |
edd16368 SC |
5107 | |
5108 | /* find the controller to which the command to be aborted was sent */ | |
5109 | h = sdev_to_hba(scsicmd->device); | |
5110 | if (h == NULL) /* paranoia */ | |
5111 | return FAILED; | |
e345893b DB |
5112 | |
5113 | if (lockup_detected(h)) | |
5114 | return FAILED; | |
5115 | ||
edd16368 SC |
5116 | dev = scsicmd->device->hostdata; |
5117 | if (!dev) { | |
d604f533 | 5118 | dev_err(&h->pdev->dev, "%s: device lookup failed\n", __func__); |
edd16368 SC |
5119 | return FAILED; |
5120 | } | |
25163bd5 WS |
5121 | |
5122 | /* if controller locked up, we can guarantee command won't complete */ | |
5123 | if (lockup_detected(h)) { | |
2dc127bb DC |
5124 | snprintf(msg, sizeof(msg), |
5125 | "cmd %d RESET FAILED, lockup detected", | |
5126 | hpsa_get_cmd_index(scsicmd)); | |
73153fe5 | 5127 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); |
25163bd5 WS |
5128 | return FAILED; |
5129 | } | |
5130 | ||
5131 | /* this reset request might be the result of a lockup; check */ | |
5132 | if (detect_controller_lockup(h)) { | |
2dc127bb DC |
5133 | snprintf(msg, sizeof(msg), |
5134 | "cmd %d RESET FAILED, new lockup detected", | |
5135 | hpsa_get_cmd_index(scsicmd)); | |
73153fe5 | 5136 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); |
25163bd5 WS |
5137 | return FAILED; |
5138 | } | |
5139 | ||
d604f533 WS |
5140 | /* Do not attempt on controller */ |
5141 | if (is_hba_lunid(dev->scsi3addr)) | |
5142 | return SUCCESS; | |
5143 | ||
25163bd5 WS |
5144 | hpsa_show_dev_msg(KERN_WARNING, h, dev, "resetting"); |
5145 | ||
edd16368 | 5146 | /* send a reset to the SCSI LUN which the command was sent to */ |
d604f533 WS |
5147 | rc = hpsa_do_reset(h, dev, dev->scsi3addr, HPSA_RESET_TYPE_LUN, |
5148 | DEFAULT_REPLY_QUEUE); | |
2dc127bb DC |
5149 | snprintf(msg, sizeof(msg), "reset %s", |
5150 | rc == 0 ? "completed successfully" : "failed"); | |
d604f533 WS |
5151 | hpsa_show_dev_msg(KERN_WARNING, h, dev, msg); |
5152 | return rc == 0 ? SUCCESS : FAILED; | |
edd16368 SC |
5153 | } |
5154 | ||
6cba3f19 SC |
5155 | static void swizzle_abort_tag(u8 *tag) |
5156 | { | |
5157 | u8 original_tag[8]; | |
5158 | ||
5159 | memcpy(original_tag, tag, 8); | |
5160 | tag[0] = original_tag[3]; | |
5161 | tag[1] = original_tag[2]; | |
5162 | tag[2] = original_tag[1]; | |
5163 | tag[3] = original_tag[0]; | |
5164 | tag[4] = original_tag[7]; | |
5165 | tag[5] = original_tag[6]; | |
5166 | tag[6] = original_tag[5]; | |
5167 | tag[7] = original_tag[4]; | |
5168 | } | |
5169 | ||
17eb87d2 | 5170 | static void hpsa_get_tag(struct ctlr_info *h, |
2b08b3e9 | 5171 | struct CommandList *c, __le32 *taglower, __le32 *tagupper) |
17eb87d2 | 5172 | { |
2b08b3e9 | 5173 | u64 tag; |
17eb87d2 ST |
5174 | if (c->cmd_type == CMD_IOACCEL1) { |
5175 | struct io_accel1_cmd *cm1 = (struct io_accel1_cmd *) | |
5176 | &h->ioaccel_cmd_pool[c->cmdindex]; | |
2b08b3e9 DB |
5177 | tag = le64_to_cpu(cm1->tag); |
5178 | *tagupper = cpu_to_le32(tag >> 32); | |
5179 | *taglower = cpu_to_le32(tag); | |
54b6e9e9 ST |
5180 | return; |
5181 | } | |
5182 | if (c->cmd_type == CMD_IOACCEL2) { | |
5183 | struct io_accel2_cmd *cm2 = (struct io_accel2_cmd *) | |
5184 | &h->ioaccel2_cmd_pool[c->cmdindex]; | |
dd0e19f3 ST |
5185 | /* upper tag not used in ioaccel2 mode */ |
5186 | memset(tagupper, 0, sizeof(*tagupper)); | |
5187 | *taglower = cm2->Tag; | |
54b6e9e9 | 5188 | return; |
17eb87d2 | 5189 | } |
2b08b3e9 DB |
5190 | tag = le64_to_cpu(c->Header.tag); |
5191 | *tagupper = cpu_to_le32(tag >> 32); | |
5192 | *taglower = cpu_to_le32(tag); | |
17eb87d2 ST |
5193 | } |
5194 | ||
75167d2c | 5195 | static int hpsa_send_abort(struct ctlr_info *h, unsigned char *scsi3addr, |
9b5c48c2 | 5196 | struct CommandList *abort, int reply_queue) |
75167d2c SC |
5197 | { |
5198 | int rc = IO_OK; | |
5199 | struct CommandList *c; | |
5200 | struct ErrorInfo *ei; | |
2b08b3e9 | 5201 | __le32 tagupper, taglower; |
75167d2c | 5202 | |
45fcb86e | 5203 | c = cmd_alloc(h); |
75167d2c | 5204 | |
a2dac136 | 5205 | /* fill_cmd can't fail here, no buffer to map */ |
9b5c48c2 | 5206 | (void) fill_cmd(c, HPSA_ABORT_MSG, h, &abort->Header.tag, |
a2dac136 | 5207 | 0, 0, scsi3addr, TYPE_MSG); |
9b5c48c2 | 5208 | if (h->needs_abort_tags_swizzled) |
6cba3f19 | 5209 | swizzle_abort_tag(&c->Request.CDB[4]); |
25163bd5 | 5210 | (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT); |
17eb87d2 | 5211 | hpsa_get_tag(h, abort, &taglower, &tagupper); |
25163bd5 | 5212 | dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: do_simple_cmd(abort) completed.\n", |
17eb87d2 | 5213 | __func__, tagupper, taglower); |
75167d2c SC |
5214 | /* no unmap needed here because no data xfer. */ |
5215 | ||
5216 | ei = c->err_info; | |
5217 | switch (ei->CommandStatus) { | |
5218 | case CMD_SUCCESS: | |
5219 | break; | |
9437ac43 SC |
5220 | case CMD_TMF_STATUS: |
5221 | rc = hpsa_evaluate_tmf_status(h, c); | |
5222 | break; | |
75167d2c SC |
5223 | case CMD_UNABORTABLE: /* Very common, don't make noise. */ |
5224 | rc = -1; | |
5225 | break; | |
5226 | default: | |
5227 | dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: interpreting error.\n", | |
17eb87d2 | 5228 | __func__, tagupper, taglower); |
d1e8beac | 5229 | hpsa_scsi_interpret_error(h, c); |
75167d2c SC |
5230 | rc = -1; |
5231 | break; | |
5232 | } | |
45fcb86e | 5233 | cmd_free(h, c); |
dd0e19f3 ST |
5234 | dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: Finished.\n", |
5235 | __func__, tagupper, taglower); | |
75167d2c SC |
5236 | return rc; |
5237 | } | |
5238 | ||
8be986cc SC |
5239 | static void setup_ioaccel2_abort_cmd(struct CommandList *c, struct ctlr_info *h, |
5240 | struct CommandList *command_to_abort, int reply_queue) | |
5241 | { | |
5242 | struct io_accel2_cmd *c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
5243 | struct hpsa_tmf_struct *ac = (struct hpsa_tmf_struct *) c2; | |
5244 | struct io_accel2_cmd *c2a = | |
5245 | &h->ioaccel2_cmd_pool[command_to_abort->cmdindex]; | |
a58e7e53 | 5246 | struct scsi_cmnd *scmd = command_to_abort->scsi_cmd; |
8be986cc SC |
5247 | struct hpsa_scsi_dev_t *dev = scmd->device->hostdata; |
5248 | ||
5249 | /* | |
5250 | * We're overlaying struct hpsa_tmf_struct on top of something which | |
5251 | * was allocated as a struct io_accel2_cmd, so we better be sure it | |
5252 | * actually fits, and doesn't overrun the error info space. | |
5253 | */ | |
5254 | BUILD_BUG_ON(sizeof(struct hpsa_tmf_struct) > | |
5255 | sizeof(struct io_accel2_cmd)); | |
5256 | BUG_ON(offsetof(struct io_accel2_cmd, error_data) < | |
5257 | offsetof(struct hpsa_tmf_struct, error_len) + | |
5258 | sizeof(ac->error_len)); | |
5259 | ||
5260 | c->cmd_type = IOACCEL2_TMF; | |
a58e7e53 WS |
5261 | c->scsi_cmd = SCSI_CMD_BUSY; |
5262 | ||
8be986cc SC |
5263 | /* Adjust the DMA address to point to the accelerated command buffer */ |
5264 | c->busaddr = (u32) h->ioaccel2_cmd_pool_dhandle + | |
5265 | (c->cmdindex * sizeof(struct io_accel2_cmd)); | |
5266 | BUG_ON(c->busaddr & 0x0000007F); | |
5267 | ||
5268 | memset(ac, 0, sizeof(*c2)); /* yes this is correct */ | |
5269 | ac->iu_type = IOACCEL2_IU_TMF_TYPE; | |
5270 | ac->reply_queue = reply_queue; | |
5271 | ac->tmf = IOACCEL2_TMF_ABORT; | |
5272 | ac->it_nexus = cpu_to_le32(dev->ioaccel_handle); | |
5273 | memset(ac->lun_id, 0, sizeof(ac->lun_id)); | |
5274 | ac->tag = cpu_to_le64(c->cmdindex << DIRECT_LOOKUP_SHIFT); | |
5275 | ac->abort_tag = cpu_to_le64(le32_to_cpu(c2a->Tag)); | |
5276 | ac->error_ptr = cpu_to_le64(c->busaddr + | |
5277 | offsetof(struct io_accel2_cmd, error_data)); | |
5278 | ac->error_len = cpu_to_le32(sizeof(c2->error_data)); | |
5279 | } | |
5280 | ||
54b6e9e9 ST |
5281 | /* ioaccel2 path firmware cannot handle abort task requests. |
5282 | * Change abort requests to physical target reset, and send to the | |
5283 | * address of the physical disk used for the ioaccel 2 command. | |
5284 | * Return 0 on success (IO_OK) | |
5285 | * -1 on failure | |
5286 | */ | |
5287 | ||
5288 | static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info *h, | |
25163bd5 | 5289 | unsigned char *scsi3addr, struct CommandList *abort, int reply_queue) |
54b6e9e9 ST |
5290 | { |
5291 | int rc = IO_OK; | |
5292 | struct scsi_cmnd *scmd; /* scsi command within request being aborted */ | |
5293 | struct hpsa_scsi_dev_t *dev; /* device to which scsi cmd was sent */ | |
5294 | unsigned char phys_scsi3addr[8]; /* addr of phys disk with volume */ | |
5295 | unsigned char *psa = &phys_scsi3addr[0]; | |
5296 | ||
5297 | /* Get a pointer to the hpsa logical device. */ | |
7fa3030c | 5298 | scmd = abort->scsi_cmd; |
54b6e9e9 ST |
5299 | dev = (struct hpsa_scsi_dev_t *)(scmd->device->hostdata); |
5300 | if (dev == NULL) { | |
5301 | dev_warn(&h->pdev->dev, | |
5302 | "Cannot abort: no device pointer for command.\n"); | |
5303 | return -1; /* not abortable */ | |
5304 | } | |
5305 | ||
2ba8bfc8 SC |
5306 | if (h->raid_offload_debug > 0) |
5307 | dev_info(&h->pdev->dev, | |
0d96ef5f | 5308 | "scsi %d:%d:%d:%d %s scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", |
2ba8bfc8 | 5309 | h->scsi_host->host_no, dev->bus, dev->target, dev->lun, |
0d96ef5f | 5310 | "Reset as abort", |
2ba8bfc8 SC |
5311 | scsi3addr[0], scsi3addr[1], scsi3addr[2], scsi3addr[3], |
5312 | scsi3addr[4], scsi3addr[5], scsi3addr[6], scsi3addr[7]); | |
5313 | ||
54b6e9e9 ST |
5314 | if (!dev->offload_enabled) { |
5315 | dev_warn(&h->pdev->dev, | |
5316 | "Can't abort: device is not operating in HP SSD Smart Path mode.\n"); | |
5317 | return -1; /* not abortable */ | |
5318 | } | |
5319 | ||
5320 | /* Incoming scsi3addr is logical addr. We need physical disk addr. */ | |
5321 | if (!hpsa_get_pdisk_of_ioaccel2(h, abort, psa)) { | |
5322 | dev_warn(&h->pdev->dev, "Can't abort: Failed lookup of physical address.\n"); | |
5323 | return -1; /* not abortable */ | |
5324 | } | |
5325 | ||
5326 | /* send the reset */ | |
2ba8bfc8 SC |
5327 | if (h->raid_offload_debug > 0) |
5328 | dev_info(&h->pdev->dev, | |
5329 | "Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
5330 | psa[0], psa[1], psa[2], psa[3], | |
5331 | psa[4], psa[5], psa[6], psa[7]); | |
d604f533 | 5332 | rc = hpsa_do_reset(h, dev, psa, HPSA_RESET_TYPE_TARGET, reply_queue); |
54b6e9e9 ST |
5333 | if (rc != 0) { |
5334 | dev_warn(&h->pdev->dev, | |
5335 | "Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
5336 | psa[0], psa[1], psa[2], psa[3], | |
5337 | psa[4], psa[5], psa[6], psa[7]); | |
5338 | return rc; /* failed to reset */ | |
5339 | } | |
5340 | ||
5341 | /* wait for device to recover */ | |
b69324ff | 5342 | if (wait_for_device_to_become_ready(h, psa, reply_queue) != 0) { |
54b6e9e9 ST |
5343 | dev_warn(&h->pdev->dev, |
5344 | "Reset as abort: Failed: Device never recovered from reset: 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
5345 | psa[0], psa[1], psa[2], psa[3], | |
5346 | psa[4], psa[5], psa[6], psa[7]); | |
5347 | return -1; /* failed to recover */ | |
5348 | } | |
5349 | ||
5350 | /* device recovered */ | |
5351 | dev_info(&h->pdev->dev, | |
5352 | "Reset as abort: Device recovered from reset: scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n", | |
5353 | psa[0], psa[1], psa[2], psa[3], | |
5354 | psa[4], psa[5], psa[6], psa[7]); | |
5355 | ||
5356 | return rc; /* success */ | |
5357 | } | |
5358 | ||
8be986cc SC |
5359 | static int hpsa_send_abort_ioaccel2(struct ctlr_info *h, |
5360 | struct CommandList *abort, int reply_queue) | |
5361 | { | |
5362 | int rc = IO_OK; | |
5363 | struct CommandList *c; | |
5364 | __le32 taglower, tagupper; | |
5365 | struct hpsa_scsi_dev_t *dev; | |
5366 | struct io_accel2_cmd *c2; | |
5367 | ||
5368 | dev = abort->scsi_cmd->device->hostdata; | |
5369 | if (!dev->offload_enabled && !dev->hba_ioaccel_enabled) | |
5370 | return -1; | |
5371 | ||
5372 | c = cmd_alloc(h); | |
5373 | setup_ioaccel2_abort_cmd(c, h, abort, reply_queue); | |
5374 | c2 = &h->ioaccel2_cmd_pool[c->cmdindex]; | |
5375 | (void) hpsa_scsi_do_simple_cmd(h, c, reply_queue, NO_TIMEOUT); | |
5376 | hpsa_get_tag(h, abort, &taglower, &tagupper); | |
5377 | dev_dbg(&h->pdev->dev, | |
5378 | "%s: Tag:0x%08x:%08x: do_simple_cmd(ioaccel2 abort) completed.\n", | |
5379 | __func__, tagupper, taglower); | |
5380 | /* no unmap needed here because no data xfer. */ | |
5381 | ||
5382 | dev_dbg(&h->pdev->dev, | |
5383 | "%s: Tag:0x%08x:%08x: abort service response = 0x%02x.\n", | |
5384 | __func__, tagupper, taglower, c2->error_data.serv_response); | |
5385 | switch (c2->error_data.serv_response) { | |
5386 | case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE: | |
5387 | case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS: | |
5388 | rc = 0; | |
5389 | break; | |
5390 | case IOACCEL2_SERV_RESPONSE_TMF_REJECTED: | |
5391 | case IOACCEL2_SERV_RESPONSE_FAILURE: | |
5392 | case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN: | |
5393 | rc = -1; | |
5394 | break; | |
5395 | default: | |
5396 | dev_warn(&h->pdev->dev, | |
5397 | "%s: Tag:0x%08x:%08x: unknown abort service response 0x%02x\n", | |
5398 | __func__, tagupper, taglower, | |
5399 | c2->error_data.serv_response); | |
5400 | rc = -1; | |
5401 | } | |
5402 | cmd_free(h, c); | |
5403 | dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: Finished.\n", __func__, | |
5404 | tagupper, taglower); | |
5405 | return rc; | |
5406 | } | |
5407 | ||
6cba3f19 | 5408 | static int hpsa_send_abort_both_ways(struct ctlr_info *h, |
25163bd5 | 5409 | unsigned char *scsi3addr, struct CommandList *abort, int reply_queue) |
6cba3f19 | 5410 | { |
8be986cc SC |
5411 | /* |
5412 | * ioccelerator mode 2 commands should be aborted via the | |
54b6e9e9 | 5413 | * accelerated path, since RAID path is unaware of these commands, |
8be986cc SC |
5414 | * but not all underlying firmware can handle abort TMF. |
5415 | * Change abort to physical device reset when abort TMF is unsupported. | |
54b6e9e9 | 5416 | */ |
8be986cc SC |
5417 | if (abort->cmd_type == CMD_IOACCEL2) { |
5418 | if (HPSATMF_IOACCEL_ENABLED & h->TMFSupportFlags) | |
5419 | return hpsa_send_abort_ioaccel2(h, abort, | |
5420 | reply_queue); | |
5421 | else | |
5422 | return hpsa_send_reset_as_abort_ioaccel2(h, scsi3addr, | |
25163bd5 | 5423 | abort, reply_queue); |
8be986cc | 5424 | } |
9b5c48c2 | 5425 | return hpsa_send_abort(h, scsi3addr, abort, reply_queue); |
25163bd5 | 5426 | } |
54b6e9e9 | 5427 | |
25163bd5 WS |
5428 | /* Find out which reply queue a command was meant to return on */ |
5429 | static int hpsa_extract_reply_queue(struct ctlr_info *h, | |
5430 | struct CommandList *c) | |
5431 | { | |
5432 | if (c->cmd_type == CMD_IOACCEL2) | |
5433 | return h->ioaccel2_cmd_pool[c->cmdindex].reply_queue; | |
5434 | return c->Header.ReplyQueue; | |
6cba3f19 SC |
5435 | } |
5436 | ||
9b5c48c2 SC |
5437 | /* |
5438 | * Limit concurrency of abort commands to prevent | |
5439 | * over-subscription of commands | |
5440 | */ | |
5441 | static inline int wait_for_available_abort_cmd(struct ctlr_info *h) | |
5442 | { | |
5443 | #define ABORT_CMD_WAIT_MSECS 5000 | |
5444 | return !wait_event_timeout(h->abort_cmd_wait_queue, | |
5445 | atomic_dec_if_positive(&h->abort_cmds_available) >= 0, | |
5446 | msecs_to_jiffies(ABORT_CMD_WAIT_MSECS)); | |
5447 | } | |
5448 | ||
75167d2c SC |
5449 | /* Send an abort for the specified command. |
5450 | * If the device and controller support it, | |
5451 | * send a task abort request. | |
5452 | */ | |
5453 | static int hpsa_eh_abort_handler(struct scsi_cmnd *sc) | |
5454 | { | |
5455 | ||
a58e7e53 | 5456 | int rc; |
75167d2c SC |
5457 | struct ctlr_info *h; |
5458 | struct hpsa_scsi_dev_t *dev; | |
5459 | struct CommandList *abort; /* pointer to command to be aborted */ | |
75167d2c SC |
5460 | struct scsi_cmnd *as; /* ptr to scsi cmd inside aborted command. */ |
5461 | char msg[256]; /* For debug messaging. */ | |
5462 | int ml = 0; | |
2b08b3e9 | 5463 | __le32 tagupper, taglower; |
25163bd5 WS |
5464 | int refcount, reply_queue; |
5465 | ||
5466 | if (sc == NULL) | |
5467 | return FAILED; | |
75167d2c | 5468 | |
9b5c48c2 SC |
5469 | if (sc->device == NULL) |
5470 | return FAILED; | |
5471 | ||
75167d2c SC |
5472 | /* Find the controller of the command to be aborted */ |
5473 | h = sdev_to_hba(sc->device); | |
9b5c48c2 | 5474 | if (h == NULL) |
75167d2c SC |
5475 | return FAILED; |
5476 | ||
25163bd5 WS |
5477 | /* Find the device of the command to be aborted */ |
5478 | dev = sc->device->hostdata; | |
5479 | if (!dev) { | |
5480 | dev_err(&h->pdev->dev, "%s FAILED, Device lookup failed.\n", | |
5481 | msg); | |
e345893b | 5482 | return FAILED; |
25163bd5 WS |
5483 | } |
5484 | ||
5485 | /* If controller locked up, we can guarantee command won't complete */ | |
5486 | if (lockup_detected(h)) { | |
5487 | hpsa_show_dev_msg(KERN_WARNING, h, dev, | |
5488 | "ABORT FAILED, lockup detected"); | |
5489 | return FAILED; | |
5490 | } | |
5491 | ||
5492 | /* This is a good time to check if controller lockup has occurred */ | |
5493 | if (detect_controller_lockup(h)) { | |
5494 | hpsa_show_dev_msg(KERN_WARNING, h, dev, | |
5495 | "ABORT FAILED, new lockup detected"); | |
5496 | return FAILED; | |
5497 | } | |
e345893b | 5498 | |
75167d2c SC |
5499 | /* Check that controller supports some kind of task abort */ |
5500 | if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags) && | |
5501 | !(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags)) | |
5502 | return FAILED; | |
5503 | ||
5504 | memset(msg, 0, sizeof(msg)); | |
4b761557 | 5505 | ml += sprintf(msg+ml, "scsi %d:%d:%d:%llu %s %p", |
75167d2c | 5506 | h->scsi_host->host_no, sc->device->channel, |
0d96ef5f | 5507 | sc->device->id, sc->device->lun, |
4b761557 | 5508 | "Aborting command", sc); |
75167d2c | 5509 | |
75167d2c SC |
5510 | /* Get SCSI command to be aborted */ |
5511 | abort = (struct CommandList *) sc->host_scribble; | |
5512 | if (abort == NULL) { | |
281a7fd0 WS |
5513 | /* This can happen if the command already completed. */ |
5514 | return SUCCESS; | |
5515 | } | |
5516 | refcount = atomic_inc_return(&abort->refcount); | |
5517 | if (refcount == 1) { /* Command is done already. */ | |
5518 | cmd_free(h, abort); | |
5519 | return SUCCESS; | |
75167d2c | 5520 | } |
9b5c48c2 SC |
5521 | |
5522 | /* Don't bother trying the abort if we know it won't work. */ | |
5523 | if (abort->cmd_type != CMD_IOACCEL2 && | |
5524 | abort->cmd_type != CMD_IOACCEL1 && !dev->supports_aborts) { | |
5525 | cmd_free(h, abort); | |
5526 | return FAILED; | |
5527 | } | |
5528 | ||
a58e7e53 WS |
5529 | /* |
5530 | * Check that we're aborting the right command. | |
5531 | * It's possible the CommandList already completed and got re-used. | |
5532 | */ | |
5533 | if (abort->scsi_cmd != sc) { | |
5534 | cmd_free(h, abort); | |
5535 | return SUCCESS; | |
5536 | } | |
5537 | ||
5538 | abort->abort_pending = true; | |
17eb87d2 | 5539 | hpsa_get_tag(h, abort, &taglower, &tagupper); |
25163bd5 | 5540 | reply_queue = hpsa_extract_reply_queue(h, abort); |
17eb87d2 | 5541 | ml += sprintf(msg+ml, "Tag:0x%08x:%08x ", tagupper, taglower); |
7fa3030c | 5542 | as = abort->scsi_cmd; |
75167d2c | 5543 | if (as != NULL) |
4b761557 RE |
5544 | ml += sprintf(msg+ml, |
5545 | "CDBLen: %d CDB: 0x%02x%02x... SN: 0x%lx ", | |
5546 | as->cmd_len, as->cmnd[0], as->cmnd[1], | |
5547 | as->serial_number); | |
5548 | dev_warn(&h->pdev->dev, "%s BEING SENT\n", msg); | |
0d96ef5f | 5549 | hpsa_show_dev_msg(KERN_WARNING, h, dev, "Aborting command"); |
4b761557 | 5550 | |
75167d2c SC |
5551 | /* |
5552 | * Command is in flight, or possibly already completed | |
5553 | * by the firmware (but not to the scsi mid layer) but we can't | |
5554 | * distinguish which. Send the abort down. | |
5555 | */ | |
9b5c48c2 SC |
5556 | if (wait_for_available_abort_cmd(h)) { |
5557 | dev_warn(&h->pdev->dev, | |
4b761557 RE |
5558 | "%s FAILED, timeout waiting for an abort command to become available.\n", |
5559 | msg); | |
9b5c48c2 SC |
5560 | cmd_free(h, abort); |
5561 | return FAILED; | |
5562 | } | |
25163bd5 | 5563 | rc = hpsa_send_abort_both_ways(h, dev->scsi3addr, abort, reply_queue); |
9b5c48c2 SC |
5564 | atomic_inc(&h->abort_cmds_available); |
5565 | wake_up_all(&h->abort_cmd_wait_queue); | |
75167d2c | 5566 | if (rc != 0) { |
4b761557 | 5567 | dev_warn(&h->pdev->dev, "%s SENT, FAILED\n", msg); |
0d96ef5f | 5568 | hpsa_show_dev_msg(KERN_WARNING, h, dev, |
4b761557 | 5569 | "FAILED to abort command"); |
281a7fd0 | 5570 | cmd_free(h, abort); |
75167d2c SC |
5571 | return FAILED; |
5572 | } | |
4b761557 | 5573 | dev_info(&h->pdev->dev, "%s SENT, SUCCESS\n", msg); |
d604f533 | 5574 | wait_event(h->event_sync_wait_queue, |
a58e7e53 | 5575 | abort->scsi_cmd != sc || lockup_detected(h)); |
281a7fd0 | 5576 | cmd_free(h, abort); |
a58e7e53 | 5577 | return !lockup_detected(h) ? SUCCESS : FAILED; |
75167d2c SC |
5578 | } |
5579 | ||
73153fe5 WS |
5580 | /* |
5581 | * For operations with an associated SCSI command, a command block is allocated | |
5582 | * at init, and managed by cmd_tagged_alloc() and cmd_tagged_free() using the | |
5583 | * block request tag as an index into a table of entries. cmd_tagged_free() is | |
5584 | * the complement, although cmd_free() may be called instead. | |
5585 | */ | |
5586 | static struct CommandList *cmd_tagged_alloc(struct ctlr_info *h, | |
5587 | struct scsi_cmnd *scmd) | |
5588 | { | |
5589 | int idx = hpsa_get_cmd_index(scmd); | |
5590 | struct CommandList *c = h->cmd_pool + idx; | |
5591 | ||
5592 | if (idx < HPSA_NRESERVED_CMDS || idx >= h->nr_cmds) { | |
5593 | dev_err(&h->pdev->dev, "Bad block tag: %d not in [%d..%d]\n", | |
5594 | idx, HPSA_NRESERVED_CMDS, h->nr_cmds - 1); | |
5595 | /* The index value comes from the block layer, so if it's out of | |
5596 | * bounds, it's probably not our bug. | |
5597 | */ | |
5598 | BUG(); | |
5599 | } | |
5600 | ||
5601 | atomic_inc(&c->refcount); | |
5602 | if (unlikely(!hpsa_is_cmd_idle(c))) { | |
5603 | /* | |
5604 | * We expect that the SCSI layer will hand us a unique tag | |
5605 | * value. Thus, there should never be a collision here between | |
5606 | * two requests...because if the selected command isn't idle | |
5607 | * then someone is going to be very disappointed. | |
5608 | */ | |
5609 | dev_err(&h->pdev->dev, | |
5610 | "tag collision (tag=%d) in cmd_tagged_alloc().\n", | |
5611 | idx); | |
5612 | if (c->scsi_cmd != NULL) | |
5613 | scsi_print_command(c->scsi_cmd); | |
5614 | scsi_print_command(scmd); | |
5615 | } | |
5616 | ||
5617 | hpsa_cmd_partial_init(h, idx, c); | |
5618 | return c; | |
5619 | } | |
5620 | ||
5621 | static void cmd_tagged_free(struct ctlr_info *h, struct CommandList *c) | |
5622 | { | |
5623 | /* | |
5624 | * Release our reference to the block. We don't need to do anything | |
5625 | * else to free it, because it is accessed by index. (There's no point | |
5626 | * in checking the result of the decrement, since we cannot guarantee | |
5627 | * that there isn't a concurrent abort which is also accessing it.) | |
5628 | */ | |
5629 | (void)atomic_dec(&c->refcount); | |
5630 | } | |
5631 | ||
edd16368 SC |
5632 | /* |
5633 | * For operations that cannot sleep, a command block is allocated at init, | |
5634 | * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track | |
5635 | * which ones are free or in use. Lock must be held when calling this. | |
5636 | * cmd_free() is the complement. | |
bf43caf3 RE |
5637 | * This function never gives up and returns NULL. If it hangs, |
5638 | * another thread must call cmd_free() to free some tags. | |
edd16368 | 5639 | */ |
281a7fd0 | 5640 | |
edd16368 SC |
5641 | static struct CommandList *cmd_alloc(struct ctlr_info *h) |
5642 | { | |
5643 | struct CommandList *c; | |
360c73bd | 5644 | int refcount, i; |
73153fe5 | 5645 | int offset = 0; |
4c413128 | 5646 | |
33811026 RE |
5647 | /* |
5648 | * There is some *extremely* small but non-zero chance that that | |
4c413128 SC |
5649 | * multiple threads could get in here, and one thread could |
5650 | * be scanning through the list of bits looking for a free | |
5651 | * one, but the free ones are always behind him, and other | |
5652 | * threads sneak in behind him and eat them before he can | |
5653 | * get to them, so that while there is always a free one, a | |
5654 | * very unlucky thread might be starved anyway, never able to | |
5655 | * beat the other threads. In reality, this happens so | |
5656 | * infrequently as to be indistinguishable from never. | |
73153fe5 WS |
5657 | * |
5658 | * Note that we start allocating commands before the SCSI host structure | |
5659 | * is initialized. Since the search starts at bit zero, this | |
5660 | * all works, since we have at least one command structure available; | |
5661 | * however, it means that the structures with the low indexes have to be | |
5662 | * reserved for driver-initiated requests, while requests from the block | |
5663 | * layer will use the higher indexes. | |
4c413128 | 5664 | */ |
edd16368 | 5665 | |
281a7fd0 | 5666 | for (;;) { |
73153fe5 WS |
5667 | i = find_next_zero_bit(h->cmd_pool_bits, |
5668 | HPSA_NRESERVED_CMDS, | |
5669 | offset); | |
5670 | if (unlikely(i >= HPSA_NRESERVED_CMDS)) { | |
281a7fd0 WS |
5671 | offset = 0; |
5672 | continue; | |
5673 | } | |
5674 | c = h->cmd_pool + i; | |
5675 | refcount = atomic_inc_return(&c->refcount); | |
5676 | if (unlikely(refcount > 1)) { | |
5677 | cmd_free(h, c); /* already in use */ | |
73153fe5 | 5678 | offset = (i + 1) % HPSA_NRESERVED_CMDS; |
281a7fd0 WS |
5679 | continue; |
5680 | } | |
5681 | set_bit(i & (BITS_PER_LONG - 1), | |
5682 | h->cmd_pool_bits + (i / BITS_PER_LONG)); | |
5683 | break; /* it's ours now. */ | |
5684 | } | |
360c73bd | 5685 | hpsa_cmd_partial_init(h, i, c); |
edd16368 SC |
5686 | return c; |
5687 | } | |
5688 | ||
73153fe5 WS |
5689 | /* |
5690 | * This is the complementary operation to cmd_alloc(). Note, however, in some | |
5691 | * corner cases it may also be used to free blocks allocated by | |
5692 | * cmd_tagged_alloc() in which case the ref-count decrement does the trick and | |
5693 | * the clear-bit is harmless. | |
5694 | */ | |
edd16368 SC |
5695 | static void cmd_free(struct ctlr_info *h, struct CommandList *c) |
5696 | { | |
281a7fd0 WS |
5697 | if (atomic_dec_and_test(&c->refcount)) { |
5698 | int i; | |
edd16368 | 5699 | |
281a7fd0 WS |
5700 | i = c - h->cmd_pool; |
5701 | clear_bit(i & (BITS_PER_LONG - 1), | |
5702 | h->cmd_pool_bits + (i / BITS_PER_LONG)); | |
5703 | } | |
edd16368 SC |
5704 | } |
5705 | ||
edd16368 SC |
5706 | #ifdef CONFIG_COMPAT |
5707 | ||
42a91641 DB |
5708 | static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, |
5709 | void __user *arg) | |
edd16368 SC |
5710 | { |
5711 | IOCTL32_Command_struct __user *arg32 = | |
5712 | (IOCTL32_Command_struct __user *) arg; | |
5713 | IOCTL_Command_struct arg64; | |
5714 | IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(arg64)); | |
5715 | int err; | |
5716 | u32 cp; | |
5717 | ||
938abd84 | 5718 | memset(&arg64, 0, sizeof(arg64)); |
edd16368 SC |
5719 | err = 0; |
5720 | err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, | |
5721 | sizeof(arg64.LUN_info)); | |
5722 | err |= copy_from_user(&arg64.Request, &arg32->Request, | |
5723 | sizeof(arg64.Request)); | |
5724 | err |= copy_from_user(&arg64.error_info, &arg32->error_info, | |
5725 | sizeof(arg64.error_info)); | |
5726 | err |= get_user(arg64.buf_size, &arg32->buf_size); | |
5727 | err |= get_user(cp, &arg32->buf); | |
5728 | arg64.buf = compat_ptr(cp); | |
5729 | err |= copy_to_user(p, &arg64, sizeof(arg64)); | |
5730 | ||
5731 | if (err) | |
5732 | return -EFAULT; | |
5733 | ||
42a91641 | 5734 | err = hpsa_ioctl(dev, CCISS_PASSTHRU, p); |
edd16368 SC |
5735 | if (err) |
5736 | return err; | |
5737 | err |= copy_in_user(&arg32->error_info, &p->error_info, | |
5738 | sizeof(arg32->error_info)); | |
5739 | if (err) | |
5740 | return -EFAULT; | |
5741 | return err; | |
5742 | } | |
5743 | ||
5744 | static int hpsa_ioctl32_big_passthru(struct scsi_device *dev, | |
42a91641 | 5745 | int cmd, void __user *arg) |
edd16368 SC |
5746 | { |
5747 | BIG_IOCTL32_Command_struct __user *arg32 = | |
5748 | (BIG_IOCTL32_Command_struct __user *) arg; | |
5749 | BIG_IOCTL_Command_struct arg64; | |
5750 | BIG_IOCTL_Command_struct __user *p = | |
5751 | compat_alloc_user_space(sizeof(arg64)); | |
5752 | int err; | |
5753 | u32 cp; | |
5754 | ||
938abd84 | 5755 | memset(&arg64, 0, sizeof(arg64)); |
edd16368 SC |
5756 | err = 0; |
5757 | err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info, | |
5758 | sizeof(arg64.LUN_info)); | |
5759 | err |= copy_from_user(&arg64.Request, &arg32->Request, | |
5760 | sizeof(arg64.Request)); | |
5761 | err |= copy_from_user(&arg64.error_info, &arg32->error_info, | |
5762 | sizeof(arg64.error_info)); | |
5763 | err |= get_user(arg64.buf_size, &arg32->buf_size); | |
5764 | err |= get_user(arg64.malloc_size, &arg32->malloc_size); | |
5765 | err |= get_user(cp, &arg32->buf); | |
5766 | arg64.buf = compat_ptr(cp); | |
5767 | err |= copy_to_user(p, &arg64, sizeof(arg64)); | |
5768 | ||
5769 | if (err) | |
5770 | return -EFAULT; | |
5771 | ||
42a91641 | 5772 | err = hpsa_ioctl(dev, CCISS_BIG_PASSTHRU, p); |
edd16368 SC |
5773 | if (err) |
5774 | return err; | |
5775 | err |= copy_in_user(&arg32->error_info, &p->error_info, | |
5776 | sizeof(arg32->error_info)); | |
5777 | if (err) | |
5778 | return -EFAULT; | |
5779 | return err; | |
5780 | } | |
71fe75a7 | 5781 | |
42a91641 | 5782 | static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, void __user *arg) |
71fe75a7 SC |
5783 | { |
5784 | switch (cmd) { | |
5785 | case CCISS_GETPCIINFO: | |
5786 | case CCISS_GETINTINFO: | |
5787 | case CCISS_SETINTINFO: | |
5788 | case CCISS_GETNODENAME: | |
5789 | case CCISS_SETNODENAME: | |
5790 | case CCISS_GETHEARTBEAT: | |
5791 | case CCISS_GETBUSTYPES: | |
5792 | case CCISS_GETFIRMVER: | |
5793 | case CCISS_GETDRIVVER: | |
5794 | case CCISS_REVALIDVOLS: | |
5795 | case CCISS_DEREGDISK: | |
5796 | case CCISS_REGNEWDISK: | |
5797 | case CCISS_REGNEWD: | |
5798 | case CCISS_RESCANDISK: | |
5799 | case CCISS_GETLUNINFO: | |
5800 | return hpsa_ioctl(dev, cmd, arg); | |
5801 | ||
5802 | case CCISS_PASSTHRU32: | |
5803 | return hpsa_ioctl32_passthru(dev, cmd, arg); | |
5804 | case CCISS_BIG_PASSTHRU32: | |
5805 | return hpsa_ioctl32_big_passthru(dev, cmd, arg); | |
5806 | ||
5807 | default: | |
5808 | return -ENOIOCTLCMD; | |
5809 | } | |
5810 | } | |
edd16368 SC |
5811 | #endif |
5812 | ||
5813 | static int hpsa_getpciinfo_ioctl(struct ctlr_info *h, void __user *argp) | |
5814 | { | |
5815 | struct hpsa_pci_info pciinfo; | |
5816 | ||
5817 | if (!argp) | |
5818 | return -EINVAL; | |
5819 | pciinfo.domain = pci_domain_nr(h->pdev->bus); | |
5820 | pciinfo.bus = h->pdev->bus->number; | |
5821 | pciinfo.dev_fn = h->pdev->devfn; | |
5822 | pciinfo.board_id = h->board_id; | |
5823 | if (copy_to_user(argp, &pciinfo, sizeof(pciinfo))) | |
5824 | return -EFAULT; | |
5825 | return 0; | |
5826 | } | |
5827 | ||
5828 | static int hpsa_getdrivver_ioctl(struct ctlr_info *h, void __user *argp) | |
5829 | { | |
5830 | DriverVer_type DriverVer; | |
5831 | unsigned char vmaj, vmin, vsubmin; | |
5832 | int rc; | |
5833 | ||
5834 | rc = sscanf(HPSA_DRIVER_VERSION, "%hhu.%hhu.%hhu", | |
5835 | &vmaj, &vmin, &vsubmin); | |
5836 | if (rc != 3) { | |
5837 | dev_info(&h->pdev->dev, "driver version string '%s' " | |
5838 | "unrecognized.", HPSA_DRIVER_VERSION); | |
5839 | vmaj = 0; | |
5840 | vmin = 0; | |
5841 | vsubmin = 0; | |
5842 | } | |
5843 | DriverVer = (vmaj << 16) | (vmin << 8) | vsubmin; | |
5844 | if (!argp) | |
5845 | return -EINVAL; | |
5846 | if (copy_to_user(argp, &DriverVer, sizeof(DriverVer_type))) | |
5847 | return -EFAULT; | |
5848 | return 0; | |
5849 | } | |
5850 | ||
5851 | static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp) | |
5852 | { | |
5853 | IOCTL_Command_struct iocommand; | |
5854 | struct CommandList *c; | |
5855 | char *buff = NULL; | |
50a0decf | 5856 | u64 temp64; |
c1f63c8f | 5857 | int rc = 0; |
edd16368 SC |
5858 | |
5859 | if (!argp) | |
5860 | return -EINVAL; | |
5861 | if (!capable(CAP_SYS_RAWIO)) | |
5862 | return -EPERM; | |
5863 | if (copy_from_user(&iocommand, argp, sizeof(iocommand))) | |
5864 | return -EFAULT; | |
5865 | if ((iocommand.buf_size < 1) && | |
5866 | (iocommand.Request.Type.Direction != XFER_NONE)) { | |
5867 | return -EINVAL; | |
5868 | } | |
5869 | if (iocommand.buf_size > 0) { | |
5870 | buff = kmalloc(iocommand.buf_size, GFP_KERNEL); | |
5871 | if (buff == NULL) | |
2dd02d74 | 5872 | return -ENOMEM; |
9233fb10 | 5873 | if (iocommand.Request.Type.Direction & XFER_WRITE) { |
b03a7771 SC |
5874 | /* Copy the data into the buffer we created */ |
5875 | if (copy_from_user(buff, iocommand.buf, | |
5876 | iocommand.buf_size)) { | |
c1f63c8f SC |
5877 | rc = -EFAULT; |
5878 | goto out_kfree; | |
b03a7771 SC |
5879 | } |
5880 | } else { | |
5881 | memset(buff, 0, iocommand.buf_size); | |
edd16368 | 5882 | } |
b03a7771 | 5883 | } |
45fcb86e | 5884 | c = cmd_alloc(h); |
bf43caf3 | 5885 | |
edd16368 SC |
5886 | /* Fill in the command type */ |
5887 | c->cmd_type = CMD_IOCTL_PEND; | |
a58e7e53 | 5888 | c->scsi_cmd = SCSI_CMD_BUSY; |
edd16368 SC |
5889 | /* Fill in Command Header */ |
5890 | c->Header.ReplyQueue = 0; /* unused in simple mode */ | |
5891 | if (iocommand.buf_size > 0) { /* buffer to fill */ | |
5892 | c->Header.SGList = 1; | |
50a0decf | 5893 | c->Header.SGTotal = cpu_to_le16(1); |
edd16368 SC |
5894 | } else { /* no buffers to fill */ |
5895 | c->Header.SGList = 0; | |
50a0decf | 5896 | c->Header.SGTotal = cpu_to_le16(0); |
edd16368 SC |
5897 | } |
5898 | memcpy(&c->Header.LUN, &iocommand.LUN_info, sizeof(c->Header.LUN)); | |
edd16368 SC |
5899 | |
5900 | /* Fill in Request block */ | |
5901 | memcpy(&c->Request, &iocommand.Request, | |
5902 | sizeof(c->Request)); | |
5903 | ||
5904 | /* Fill in the scatter gather information */ | |
5905 | if (iocommand.buf_size > 0) { | |
50a0decf | 5906 | temp64 = pci_map_single(h->pdev, buff, |
edd16368 | 5907 | iocommand.buf_size, PCI_DMA_BIDIRECTIONAL); |
50a0decf SC |
5908 | if (dma_mapping_error(&h->pdev->dev, (dma_addr_t) temp64)) { |
5909 | c->SG[0].Addr = cpu_to_le64(0); | |
5910 | c->SG[0].Len = cpu_to_le32(0); | |
bcc48ffa SC |
5911 | rc = -ENOMEM; |
5912 | goto out; | |
5913 | } | |
50a0decf SC |
5914 | c->SG[0].Addr = cpu_to_le64(temp64); |
5915 | c->SG[0].Len = cpu_to_le32(iocommand.buf_size); | |
5916 | c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */ | |
edd16368 | 5917 | } |
25163bd5 | 5918 | rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); |
c2dd32e0 SC |
5919 | if (iocommand.buf_size > 0) |
5920 | hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL); | |
edd16368 | 5921 | check_ioctl_unit_attention(h, c); |
25163bd5 WS |
5922 | if (rc) { |
5923 | rc = -EIO; | |
5924 | goto out; | |
5925 | } | |
edd16368 SC |
5926 | |
5927 | /* Copy the error information out */ | |
5928 | memcpy(&iocommand.error_info, c->err_info, | |
5929 | sizeof(iocommand.error_info)); | |
5930 | if (copy_to_user(argp, &iocommand, sizeof(iocommand))) { | |
c1f63c8f SC |
5931 | rc = -EFAULT; |
5932 | goto out; | |
edd16368 | 5933 | } |
9233fb10 | 5934 | if ((iocommand.Request.Type.Direction & XFER_READ) && |
b03a7771 | 5935 | iocommand.buf_size > 0) { |
edd16368 SC |
5936 | /* Copy the data out of the buffer we created */ |
5937 | if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) { | |
c1f63c8f SC |
5938 | rc = -EFAULT; |
5939 | goto out; | |
edd16368 SC |
5940 | } |
5941 | } | |
c1f63c8f | 5942 | out: |
45fcb86e | 5943 | cmd_free(h, c); |
c1f63c8f SC |
5944 | out_kfree: |
5945 | kfree(buff); | |
5946 | return rc; | |
edd16368 SC |
5947 | } |
5948 | ||
5949 | static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) | |
5950 | { | |
5951 | BIG_IOCTL_Command_struct *ioc; | |
5952 | struct CommandList *c; | |
5953 | unsigned char **buff = NULL; | |
5954 | int *buff_size = NULL; | |
50a0decf | 5955 | u64 temp64; |
edd16368 SC |
5956 | BYTE sg_used = 0; |
5957 | int status = 0; | |
01a02ffc SC |
5958 | u32 left; |
5959 | u32 sz; | |
edd16368 SC |
5960 | BYTE __user *data_ptr; |
5961 | ||
5962 | if (!argp) | |
5963 | return -EINVAL; | |
5964 | if (!capable(CAP_SYS_RAWIO)) | |
5965 | return -EPERM; | |
5966 | ioc = (BIG_IOCTL_Command_struct *) | |
5967 | kmalloc(sizeof(*ioc), GFP_KERNEL); | |
5968 | if (!ioc) { | |
5969 | status = -ENOMEM; | |
5970 | goto cleanup1; | |
5971 | } | |
5972 | if (copy_from_user(ioc, argp, sizeof(*ioc))) { | |
5973 | status = -EFAULT; | |
5974 | goto cleanup1; | |
5975 | } | |
5976 | if ((ioc->buf_size < 1) && | |
5977 | (ioc->Request.Type.Direction != XFER_NONE)) { | |
5978 | status = -EINVAL; | |
5979 | goto cleanup1; | |
5980 | } | |
5981 | /* Check kmalloc limits using all SGs */ | |
5982 | if (ioc->malloc_size > MAX_KMALLOC_SIZE) { | |
5983 | status = -EINVAL; | |
5984 | goto cleanup1; | |
5985 | } | |
d66ae08b | 5986 | if (ioc->buf_size > ioc->malloc_size * SG_ENTRIES_IN_CMD) { |
edd16368 SC |
5987 | status = -EINVAL; |
5988 | goto cleanup1; | |
5989 | } | |
d66ae08b | 5990 | buff = kzalloc(SG_ENTRIES_IN_CMD * sizeof(char *), GFP_KERNEL); |
edd16368 SC |
5991 | if (!buff) { |
5992 | status = -ENOMEM; | |
5993 | goto cleanup1; | |
5994 | } | |
d66ae08b | 5995 | buff_size = kmalloc(SG_ENTRIES_IN_CMD * sizeof(int), GFP_KERNEL); |
edd16368 SC |
5996 | if (!buff_size) { |
5997 | status = -ENOMEM; | |
5998 | goto cleanup1; | |
5999 | } | |
6000 | left = ioc->buf_size; | |
6001 | data_ptr = ioc->buf; | |
6002 | while (left) { | |
6003 | sz = (left > ioc->malloc_size) ? ioc->malloc_size : left; | |
6004 | buff_size[sg_used] = sz; | |
6005 | buff[sg_used] = kmalloc(sz, GFP_KERNEL); | |
6006 | if (buff[sg_used] == NULL) { | |
6007 | status = -ENOMEM; | |
6008 | goto cleanup1; | |
6009 | } | |
9233fb10 | 6010 | if (ioc->Request.Type.Direction & XFER_WRITE) { |
edd16368 | 6011 | if (copy_from_user(buff[sg_used], data_ptr, sz)) { |
0758f4f7 | 6012 | status = -EFAULT; |
edd16368 SC |
6013 | goto cleanup1; |
6014 | } | |
6015 | } else | |
6016 | memset(buff[sg_used], 0, sz); | |
6017 | left -= sz; | |
6018 | data_ptr += sz; | |
6019 | sg_used++; | |
6020 | } | |
45fcb86e | 6021 | c = cmd_alloc(h); |
bf43caf3 | 6022 | |
edd16368 | 6023 | c->cmd_type = CMD_IOCTL_PEND; |
a58e7e53 | 6024 | c->scsi_cmd = SCSI_CMD_BUSY; |
edd16368 | 6025 | c->Header.ReplyQueue = 0; |
50a0decf SC |
6026 | c->Header.SGList = (u8) sg_used; |
6027 | c->Header.SGTotal = cpu_to_le16(sg_used); | |
edd16368 | 6028 | memcpy(&c->Header.LUN, &ioc->LUN_info, sizeof(c->Header.LUN)); |
edd16368 SC |
6029 | memcpy(&c->Request, &ioc->Request, sizeof(c->Request)); |
6030 | if (ioc->buf_size > 0) { | |
6031 | int i; | |
6032 | for (i = 0; i < sg_used; i++) { | |
50a0decf | 6033 | temp64 = pci_map_single(h->pdev, buff[i], |
edd16368 | 6034 | buff_size[i], PCI_DMA_BIDIRECTIONAL); |
50a0decf SC |
6035 | if (dma_mapping_error(&h->pdev->dev, |
6036 | (dma_addr_t) temp64)) { | |
6037 | c->SG[i].Addr = cpu_to_le64(0); | |
6038 | c->SG[i].Len = cpu_to_le32(0); | |
bcc48ffa SC |
6039 | hpsa_pci_unmap(h->pdev, c, i, |
6040 | PCI_DMA_BIDIRECTIONAL); | |
6041 | status = -ENOMEM; | |
e2d4a1f6 | 6042 | goto cleanup0; |
bcc48ffa | 6043 | } |
50a0decf SC |
6044 | c->SG[i].Addr = cpu_to_le64(temp64); |
6045 | c->SG[i].Len = cpu_to_le32(buff_size[i]); | |
6046 | c->SG[i].Ext = cpu_to_le32(0); | |
edd16368 | 6047 | } |
50a0decf | 6048 | c->SG[--i].Ext = cpu_to_le32(HPSA_SG_LAST); |
edd16368 | 6049 | } |
25163bd5 | 6050 | status = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE, NO_TIMEOUT); |
b03a7771 SC |
6051 | if (sg_used) |
6052 | hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL); | |
edd16368 | 6053 | check_ioctl_unit_attention(h, c); |
25163bd5 WS |
6054 | if (status) { |
6055 | status = -EIO; | |
6056 | goto cleanup0; | |
6057 | } | |
6058 | ||
edd16368 SC |
6059 | /* Copy the error information out */ |
6060 | memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info)); | |
6061 | if (copy_to_user(argp, ioc, sizeof(*ioc))) { | |
edd16368 | 6062 | status = -EFAULT; |
e2d4a1f6 | 6063 | goto cleanup0; |
edd16368 | 6064 | } |
9233fb10 | 6065 | if ((ioc->Request.Type.Direction & XFER_READ) && ioc->buf_size > 0) { |
2b08b3e9 DB |
6066 | int i; |
6067 | ||
edd16368 SC |
6068 | /* Copy the data out of the buffer we created */ |
6069 | BYTE __user *ptr = ioc->buf; | |
6070 | for (i = 0; i < sg_used; i++) { | |
6071 | if (copy_to_user(ptr, buff[i], buff_size[i])) { | |
edd16368 | 6072 | status = -EFAULT; |
e2d4a1f6 | 6073 | goto cleanup0; |
edd16368 SC |
6074 | } |
6075 | ptr += buff_size[i]; | |
6076 | } | |
6077 | } | |
edd16368 | 6078 | status = 0; |
e2d4a1f6 | 6079 | cleanup0: |
45fcb86e | 6080 | cmd_free(h, c); |
edd16368 SC |
6081 | cleanup1: |
6082 | if (buff) { | |
2b08b3e9 DB |
6083 | int i; |
6084 | ||
edd16368 SC |
6085 | for (i = 0; i < sg_used; i++) |
6086 | kfree(buff[i]); | |
6087 | kfree(buff); | |
6088 | } | |
6089 | kfree(buff_size); | |
6090 | kfree(ioc); | |
6091 | return status; | |
6092 | } | |
6093 | ||
6094 | static void check_ioctl_unit_attention(struct ctlr_info *h, | |
6095 | struct CommandList *c) | |
6096 | { | |
6097 | if (c->err_info->CommandStatus == CMD_TARGET_STATUS && | |
6098 | c->err_info->ScsiStatus != SAM_STAT_CHECK_CONDITION) | |
6099 | (void) check_for_unit_attention(h, c); | |
6100 | } | |
0390f0c0 | 6101 | |
edd16368 SC |
6102 | /* |
6103 | * ioctl | |
6104 | */ | |
42a91641 | 6105 | static int hpsa_ioctl(struct scsi_device *dev, int cmd, void __user *arg) |
edd16368 SC |
6106 | { |
6107 | struct ctlr_info *h; | |
6108 | void __user *argp = (void __user *)arg; | |
0390f0c0 | 6109 | int rc; |
edd16368 SC |
6110 | |
6111 | h = sdev_to_hba(dev); | |
6112 | ||
6113 | switch (cmd) { | |
6114 | case CCISS_DEREGDISK: | |
6115 | case CCISS_REGNEWDISK: | |
6116 | case CCISS_REGNEWD: | |
a08a8471 | 6117 | hpsa_scan_start(h->scsi_host); |
edd16368 SC |
6118 | return 0; |
6119 | case CCISS_GETPCIINFO: | |
6120 | return hpsa_getpciinfo_ioctl(h, argp); | |
6121 | case CCISS_GETDRIVVER: | |
6122 | return hpsa_getdrivver_ioctl(h, argp); | |
6123 | case CCISS_PASSTHRU: | |
34f0c627 | 6124 | if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0) |
0390f0c0 SC |
6125 | return -EAGAIN; |
6126 | rc = hpsa_passthru_ioctl(h, argp); | |
34f0c627 | 6127 | atomic_inc(&h->passthru_cmds_avail); |
0390f0c0 | 6128 | return rc; |
edd16368 | 6129 | case CCISS_BIG_PASSTHRU: |
34f0c627 | 6130 | if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0) |
0390f0c0 SC |
6131 | return -EAGAIN; |
6132 | rc = hpsa_big_passthru_ioctl(h, argp); | |
34f0c627 | 6133 | atomic_inc(&h->passthru_cmds_avail); |
0390f0c0 | 6134 | return rc; |
edd16368 SC |
6135 | default: |
6136 | return -ENOTTY; | |
6137 | } | |
6138 | } | |
6139 | ||
bf43caf3 | 6140 | static void hpsa_send_host_reset(struct ctlr_info *h, unsigned char *scsi3addr, |
6f039790 | 6141 | u8 reset_type) |
64670ac8 SC |
6142 | { |
6143 | struct CommandList *c; | |
6144 | ||
6145 | c = cmd_alloc(h); | |
bf43caf3 | 6146 | |
a2dac136 SC |
6147 | /* fill_cmd can't fail here, no data buffer to map */ |
6148 | (void) fill_cmd(c, HPSA_DEVICE_RESET_MSG, h, NULL, 0, 0, | |
64670ac8 SC |
6149 | RAID_CTLR_LUNID, TYPE_MSG); |
6150 | c->Request.CDB[1] = reset_type; /* fill_cmd defaults to target reset */ | |
6151 | c->waiting = NULL; | |
6152 | enqueue_cmd_and_start_io(h, c); | |
6153 | /* Don't wait for completion, the reset won't complete. Don't free | |
6154 | * the command either. This is the last command we will send before | |
6155 | * re-initializing everything, so it doesn't matter and won't leak. | |
6156 | */ | |
bf43caf3 | 6157 | return; |
64670ac8 SC |
6158 | } |
6159 | ||
a2dac136 | 6160 | static int fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h, |
b7bb24eb | 6161 | void *buff, size_t size, u16 page_code, unsigned char *scsi3addr, |
edd16368 SC |
6162 | int cmd_type) |
6163 | { | |
6164 | int pci_dir = XFER_NONE; | |
9b5c48c2 | 6165 | u64 tag; /* for commands to be aborted */ |
edd16368 SC |
6166 | |
6167 | c->cmd_type = CMD_IOCTL_PEND; | |
a58e7e53 | 6168 | c->scsi_cmd = SCSI_CMD_BUSY; |
edd16368 SC |
6169 | c->Header.ReplyQueue = 0; |
6170 | if (buff != NULL && size > 0) { | |
6171 | c->Header.SGList = 1; | |
50a0decf | 6172 | c->Header.SGTotal = cpu_to_le16(1); |
edd16368 SC |
6173 | } else { |
6174 | c->Header.SGList = 0; | |
50a0decf | 6175 | c->Header.SGTotal = cpu_to_le16(0); |
edd16368 | 6176 | } |
edd16368 SC |
6177 | memcpy(c->Header.LUN.LunAddrBytes, scsi3addr, 8); |
6178 | ||
edd16368 SC |
6179 | if (cmd_type == TYPE_CMD) { |
6180 | switch (cmd) { | |
6181 | case HPSA_INQUIRY: | |
6182 | /* are we trying to read a vital product page */ | |
b7bb24eb | 6183 | if (page_code & VPD_PAGE) { |
edd16368 | 6184 | c->Request.CDB[1] = 0x01; |
b7bb24eb | 6185 | c->Request.CDB[2] = (page_code & 0xff); |
edd16368 SC |
6186 | } |
6187 | c->Request.CDBLen = 6; | |
a505b86f SC |
6188 | c->Request.type_attr_dir = |
6189 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
edd16368 SC |
6190 | c->Request.Timeout = 0; |
6191 | c->Request.CDB[0] = HPSA_INQUIRY; | |
6192 | c->Request.CDB[4] = size & 0xFF; | |
6193 | break; | |
6194 | case HPSA_REPORT_LOG: | |
6195 | case HPSA_REPORT_PHYS: | |
6196 | /* Talking to controller so It's a physical command | |
6197 | mode = 00 target = 0. Nothing to write. | |
6198 | */ | |
6199 | c->Request.CDBLen = 12; | |
a505b86f SC |
6200 | c->Request.type_attr_dir = |
6201 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
edd16368 SC |
6202 | c->Request.Timeout = 0; |
6203 | c->Request.CDB[0] = cmd; | |
6204 | c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */ | |
6205 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6206 | c->Request.CDB[8] = (size >> 8) & 0xFF; | |
6207 | c->Request.CDB[9] = size & 0xFF; | |
6208 | break; | |
edd16368 SC |
6209 | case HPSA_CACHE_FLUSH: |
6210 | c->Request.CDBLen = 12; | |
a505b86f SC |
6211 | c->Request.type_attr_dir = |
6212 | TYPE_ATTR_DIR(cmd_type, | |
6213 | ATTR_SIMPLE, XFER_WRITE); | |
edd16368 SC |
6214 | c->Request.Timeout = 0; |
6215 | c->Request.CDB[0] = BMIC_WRITE; | |
6216 | c->Request.CDB[6] = BMIC_CACHE_FLUSH; | |
bb158eab SC |
6217 | c->Request.CDB[7] = (size >> 8) & 0xFF; |
6218 | c->Request.CDB[8] = size & 0xFF; | |
edd16368 SC |
6219 | break; |
6220 | case TEST_UNIT_READY: | |
6221 | c->Request.CDBLen = 6; | |
a505b86f SC |
6222 | c->Request.type_attr_dir = |
6223 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE); | |
edd16368 SC |
6224 | c->Request.Timeout = 0; |
6225 | break; | |
283b4a9b SC |
6226 | case HPSA_GET_RAID_MAP: |
6227 | c->Request.CDBLen = 12; | |
a505b86f SC |
6228 | c->Request.type_attr_dir = |
6229 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
283b4a9b SC |
6230 | c->Request.Timeout = 0; |
6231 | c->Request.CDB[0] = HPSA_CISS_READ; | |
6232 | c->Request.CDB[1] = cmd; | |
6233 | c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */ | |
6234 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6235 | c->Request.CDB[8] = (size >> 8) & 0xFF; | |
6236 | c->Request.CDB[9] = size & 0xFF; | |
6237 | break; | |
316b221a SC |
6238 | case BMIC_SENSE_CONTROLLER_PARAMETERS: |
6239 | c->Request.CDBLen = 10; | |
a505b86f SC |
6240 | c->Request.type_attr_dir = |
6241 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
316b221a SC |
6242 | c->Request.Timeout = 0; |
6243 | c->Request.CDB[0] = BMIC_READ; | |
6244 | c->Request.CDB[6] = BMIC_SENSE_CONTROLLER_PARAMETERS; | |
6245 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6246 | c->Request.CDB[8] = (size >> 8) & 0xFF; | |
6247 | break; | |
03383736 DB |
6248 | case BMIC_IDENTIFY_PHYSICAL_DEVICE: |
6249 | c->Request.CDBLen = 10; | |
6250 | c->Request.type_attr_dir = | |
6251 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ); | |
6252 | c->Request.Timeout = 0; | |
6253 | c->Request.CDB[0] = BMIC_READ; | |
6254 | c->Request.CDB[6] = BMIC_IDENTIFY_PHYSICAL_DEVICE; | |
6255 | c->Request.CDB[7] = (size >> 16) & 0xFF; | |
6256 | c->Request.CDB[8] = (size >> 8) & 0XFF; | |
6257 | break; | |
edd16368 SC |
6258 | default: |
6259 | dev_warn(&h->pdev->dev, "unknown command 0x%c\n", cmd); | |
6260 | BUG(); | |
a2dac136 | 6261 | return -1; |
edd16368 SC |
6262 | } |
6263 | } else if (cmd_type == TYPE_MSG) { | |
6264 | switch (cmd) { | |
6265 | ||
6266 | case HPSA_DEVICE_RESET_MSG: | |
6267 | c->Request.CDBLen = 16; | |
a505b86f SC |
6268 | c->Request.type_attr_dir = |
6269 | TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_NONE); | |
edd16368 | 6270 | c->Request.Timeout = 0; /* Don't time out */ |
64670ac8 SC |
6271 | memset(&c->Request.CDB[0], 0, sizeof(c->Request.CDB)); |
6272 | c->Request.CDB[0] = cmd; | |
21e89afd | 6273 | c->Request.CDB[1] = HPSA_RESET_TYPE_LUN; |
edd16368 SC |
6274 | /* If bytes 4-7 are zero, it means reset the */ |
6275 | /* LunID device */ | |
6276 | c->Request.CDB[4] = 0x00; | |
6277 | c->Request.CDB[5] = 0x00; | |
6278 | c->Request.CDB[6] = 0x00; | |
6279 | c->Request.CDB[7] = 0x00; | |
75167d2c SC |
6280 | break; |
6281 | case HPSA_ABORT_MSG: | |
9b5c48c2 | 6282 | memcpy(&tag, buff, sizeof(tag)); |
2b08b3e9 | 6283 | dev_dbg(&h->pdev->dev, |
9b5c48c2 SC |
6284 | "Abort Tag:0x%016llx using rqst Tag:0x%016llx", |
6285 | tag, c->Header.tag); | |
75167d2c | 6286 | c->Request.CDBLen = 16; |
a505b86f SC |
6287 | c->Request.type_attr_dir = |
6288 | TYPE_ATTR_DIR(cmd_type, | |
6289 | ATTR_SIMPLE, XFER_WRITE); | |
75167d2c SC |
6290 | c->Request.Timeout = 0; /* Don't time out */ |
6291 | c->Request.CDB[0] = HPSA_TASK_MANAGEMENT; | |
6292 | c->Request.CDB[1] = HPSA_TMF_ABORT_TASK; | |
6293 | c->Request.CDB[2] = 0x00; /* reserved */ | |
6294 | c->Request.CDB[3] = 0x00; /* reserved */ | |
6295 | /* Tag to abort goes in CDB[4]-CDB[11] */ | |
9b5c48c2 | 6296 | memcpy(&c->Request.CDB[4], &tag, sizeof(tag)); |
75167d2c SC |
6297 | c->Request.CDB[12] = 0x00; /* reserved */ |
6298 | c->Request.CDB[13] = 0x00; /* reserved */ | |
6299 | c->Request.CDB[14] = 0x00; /* reserved */ | |
6300 | c->Request.CDB[15] = 0x00; /* reserved */ | |
edd16368 | 6301 | break; |
edd16368 SC |
6302 | default: |
6303 | dev_warn(&h->pdev->dev, "unknown message type %d\n", | |
6304 | cmd); | |
6305 | BUG(); | |
6306 | } | |
6307 | } else { | |
6308 | dev_warn(&h->pdev->dev, "unknown command type %d\n", cmd_type); | |
6309 | BUG(); | |
6310 | } | |
6311 | ||
a505b86f | 6312 | switch (GET_DIR(c->Request.type_attr_dir)) { |
edd16368 SC |
6313 | case XFER_READ: |
6314 | pci_dir = PCI_DMA_FROMDEVICE; | |
6315 | break; | |
6316 | case XFER_WRITE: | |
6317 | pci_dir = PCI_DMA_TODEVICE; | |
6318 | break; | |
6319 | case XFER_NONE: | |
6320 | pci_dir = PCI_DMA_NONE; | |
6321 | break; | |
6322 | default: | |
6323 | pci_dir = PCI_DMA_BIDIRECTIONAL; | |
6324 | } | |
a2dac136 SC |
6325 | if (hpsa_map_one(h->pdev, c, buff, size, pci_dir)) |
6326 | return -1; | |
6327 | return 0; | |
edd16368 SC |
6328 | } |
6329 | ||
6330 | /* | |
6331 | * Map (physical) PCI mem into (virtual) kernel space | |
6332 | */ | |
6333 | static void __iomem *remap_pci_mem(ulong base, ulong size) | |
6334 | { | |
6335 | ulong page_base = ((ulong) base) & PAGE_MASK; | |
6336 | ulong page_offs = ((ulong) base) - page_base; | |
088ba34c SC |
6337 | void __iomem *page_remapped = ioremap_nocache(page_base, |
6338 | page_offs + size); | |
edd16368 SC |
6339 | |
6340 | return page_remapped ? (page_remapped + page_offs) : NULL; | |
6341 | } | |
6342 | ||
254f796b | 6343 | static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q) |
edd16368 | 6344 | { |
254f796b | 6345 | return h->access.command_completed(h, q); |
edd16368 SC |
6346 | } |
6347 | ||
900c5440 | 6348 | static inline bool interrupt_pending(struct ctlr_info *h) |
edd16368 SC |
6349 | { |
6350 | return h->access.intr_pending(h); | |
6351 | } | |
6352 | ||
6353 | static inline long interrupt_not_for_us(struct ctlr_info *h) | |
6354 | { | |
10f66018 SC |
6355 | return (h->access.intr_pending(h) == 0) || |
6356 | (h->interrupts_enabled == 0); | |
edd16368 SC |
6357 | } |
6358 | ||
01a02ffc SC |
6359 | static inline int bad_tag(struct ctlr_info *h, u32 tag_index, |
6360 | u32 raw_tag) | |
edd16368 SC |
6361 | { |
6362 | if (unlikely(tag_index >= h->nr_cmds)) { | |
6363 | dev_warn(&h->pdev->dev, "bad tag 0x%08x ignored.\n", raw_tag); | |
6364 | return 1; | |
6365 | } | |
6366 | return 0; | |
6367 | } | |
6368 | ||
5a3d16f5 | 6369 | static inline void finish_cmd(struct CommandList *c) |
edd16368 | 6370 | { |
e85c5974 | 6371 | dial_up_lockup_detection_on_fw_flash_complete(c->h, c); |
c349775e ST |
6372 | if (likely(c->cmd_type == CMD_IOACCEL1 || c->cmd_type == CMD_SCSI |
6373 | || c->cmd_type == CMD_IOACCEL2)) | |
1fb011fb | 6374 | complete_scsi_command(c); |
8be986cc | 6375 | else if (c->cmd_type == CMD_IOCTL_PEND || c->cmd_type == IOACCEL2_TMF) |
edd16368 | 6376 | complete(c->waiting); |
a104c99f SC |
6377 | } |
6378 | ||
a9a3a273 SC |
6379 | |
6380 | static inline u32 hpsa_tag_discard_error_bits(struct ctlr_info *h, u32 tag) | |
a104c99f | 6381 | { |
a9a3a273 SC |
6382 | #define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1) |
6383 | #define HPSA_SIMPLE_ERROR_BITS 0x03 | |
960a30e7 | 6384 | if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) |
a9a3a273 SC |
6385 | return tag & ~HPSA_SIMPLE_ERROR_BITS; |
6386 | return tag & ~HPSA_PERF_ERROR_BITS; | |
a104c99f SC |
6387 | } |
6388 | ||
303932fd | 6389 | /* process completion of an indexed ("direct lookup") command */ |
1d94f94d | 6390 | static inline void process_indexed_cmd(struct ctlr_info *h, |
303932fd DB |
6391 | u32 raw_tag) |
6392 | { | |
6393 | u32 tag_index; | |
6394 | struct CommandList *c; | |
6395 | ||
f2405db8 | 6396 | tag_index = raw_tag >> DIRECT_LOOKUP_SHIFT; |
1d94f94d SC |
6397 | if (!bad_tag(h, tag_index, raw_tag)) { |
6398 | c = h->cmd_pool + tag_index; | |
6399 | finish_cmd(c); | |
6400 | } | |
303932fd DB |
6401 | } |
6402 | ||
64670ac8 SC |
6403 | /* Some controllers, like p400, will give us one interrupt |
6404 | * after a soft reset, even if we turned interrupts off. | |
6405 | * Only need to check for this in the hpsa_xxx_discard_completions | |
6406 | * functions. | |
6407 | */ | |
6408 | static int ignore_bogus_interrupt(struct ctlr_info *h) | |
6409 | { | |
6410 | if (likely(!reset_devices)) | |
6411 | return 0; | |
6412 | ||
6413 | if (likely(h->interrupts_enabled)) | |
6414 | return 0; | |
6415 | ||
6416 | dev_info(&h->pdev->dev, "Received interrupt while interrupts disabled " | |
6417 | "(known firmware bug.) Ignoring.\n"); | |
6418 | ||
6419 | return 1; | |
6420 | } | |
6421 | ||
254f796b MG |
6422 | /* |
6423 | * Convert &h->q[x] (passed to interrupt handlers) back to h. | |
6424 | * Relies on (h-q[x] == x) being true for x such that | |
6425 | * 0 <= x < MAX_REPLY_QUEUES. | |
6426 | */ | |
6427 | static struct ctlr_info *queue_to_hba(u8 *queue) | |
64670ac8 | 6428 | { |
254f796b MG |
6429 | return container_of((queue - *queue), struct ctlr_info, q[0]); |
6430 | } | |
6431 | ||
6432 | static irqreturn_t hpsa_intx_discard_completions(int irq, void *queue) | |
6433 | { | |
6434 | struct ctlr_info *h = queue_to_hba(queue); | |
6435 | u8 q = *(u8 *) queue; | |
64670ac8 SC |
6436 | u32 raw_tag; |
6437 | ||
6438 | if (ignore_bogus_interrupt(h)) | |
6439 | return IRQ_NONE; | |
6440 | ||
6441 | if (interrupt_not_for_us(h)) | |
6442 | return IRQ_NONE; | |
a0c12413 | 6443 | h->last_intr_timestamp = get_jiffies_64(); |
64670ac8 | 6444 | while (interrupt_pending(h)) { |
254f796b | 6445 | raw_tag = get_next_completion(h, q); |
64670ac8 | 6446 | while (raw_tag != FIFO_EMPTY) |
254f796b | 6447 | raw_tag = next_command(h, q); |
64670ac8 | 6448 | } |
64670ac8 SC |
6449 | return IRQ_HANDLED; |
6450 | } | |
6451 | ||
254f796b | 6452 | static irqreturn_t hpsa_msix_discard_completions(int irq, void *queue) |
64670ac8 | 6453 | { |
254f796b | 6454 | struct ctlr_info *h = queue_to_hba(queue); |
64670ac8 | 6455 | u32 raw_tag; |
254f796b | 6456 | u8 q = *(u8 *) queue; |
64670ac8 SC |
6457 | |
6458 | if (ignore_bogus_interrupt(h)) | |
6459 | return IRQ_NONE; | |
6460 | ||
a0c12413 | 6461 | h->last_intr_timestamp = get_jiffies_64(); |
254f796b | 6462 | raw_tag = get_next_completion(h, q); |
64670ac8 | 6463 | while (raw_tag != FIFO_EMPTY) |
254f796b | 6464 | raw_tag = next_command(h, q); |
64670ac8 SC |
6465 | return IRQ_HANDLED; |
6466 | } | |
6467 | ||
254f796b | 6468 | static irqreturn_t do_hpsa_intr_intx(int irq, void *queue) |
edd16368 | 6469 | { |
254f796b | 6470 | struct ctlr_info *h = queue_to_hba((u8 *) queue); |
303932fd | 6471 | u32 raw_tag; |
254f796b | 6472 | u8 q = *(u8 *) queue; |
edd16368 SC |
6473 | |
6474 | if (interrupt_not_for_us(h)) | |
6475 | return IRQ_NONE; | |
a0c12413 | 6476 | h->last_intr_timestamp = get_jiffies_64(); |
10f66018 | 6477 | while (interrupt_pending(h)) { |
254f796b | 6478 | raw_tag = get_next_completion(h, q); |
10f66018 | 6479 | while (raw_tag != FIFO_EMPTY) { |
f2405db8 | 6480 | process_indexed_cmd(h, raw_tag); |
254f796b | 6481 | raw_tag = next_command(h, q); |
10f66018 SC |
6482 | } |
6483 | } | |
10f66018 SC |
6484 | return IRQ_HANDLED; |
6485 | } | |
6486 | ||
254f796b | 6487 | static irqreturn_t do_hpsa_intr_msi(int irq, void *queue) |
10f66018 | 6488 | { |
254f796b | 6489 | struct ctlr_info *h = queue_to_hba(queue); |
10f66018 | 6490 | u32 raw_tag; |
254f796b | 6491 | u8 q = *(u8 *) queue; |
10f66018 | 6492 | |
a0c12413 | 6493 | h->last_intr_timestamp = get_jiffies_64(); |
254f796b | 6494 | raw_tag = get_next_completion(h, q); |
303932fd | 6495 | while (raw_tag != FIFO_EMPTY) { |
f2405db8 | 6496 | process_indexed_cmd(h, raw_tag); |
254f796b | 6497 | raw_tag = next_command(h, q); |
edd16368 | 6498 | } |
edd16368 SC |
6499 | return IRQ_HANDLED; |
6500 | } | |
6501 | ||
a9a3a273 SC |
6502 | /* Send a message CDB to the firmware. Careful, this only works |
6503 | * in simple mode, not performant mode due to the tag lookup. | |
6504 | * We only ever use this immediately after a controller reset. | |
6505 | */ | |
6f039790 GKH |
6506 | static int hpsa_message(struct pci_dev *pdev, unsigned char opcode, |
6507 | unsigned char type) | |
edd16368 SC |
6508 | { |
6509 | struct Command { | |
6510 | struct CommandListHeader CommandHeader; | |
6511 | struct RequestBlock Request; | |
6512 | struct ErrDescriptor ErrorDescriptor; | |
6513 | }; | |
6514 | struct Command *cmd; | |
6515 | static const size_t cmd_sz = sizeof(*cmd) + | |
6516 | sizeof(cmd->ErrorDescriptor); | |
6517 | dma_addr_t paddr64; | |
2b08b3e9 DB |
6518 | __le32 paddr32; |
6519 | u32 tag; | |
edd16368 SC |
6520 | void __iomem *vaddr; |
6521 | int i, err; | |
6522 | ||
6523 | vaddr = pci_ioremap_bar(pdev, 0); | |
6524 | if (vaddr == NULL) | |
6525 | return -ENOMEM; | |
6526 | ||
6527 | /* The Inbound Post Queue only accepts 32-bit physical addresses for the | |
6528 | * CCISS commands, so they must be allocated from the lower 4GiB of | |
6529 | * memory. | |
6530 | */ | |
6531 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); | |
6532 | if (err) { | |
6533 | iounmap(vaddr); | |
1eaec8f3 | 6534 | return err; |
edd16368 SC |
6535 | } |
6536 | ||
6537 | cmd = pci_alloc_consistent(pdev, cmd_sz, &paddr64); | |
6538 | if (cmd == NULL) { | |
6539 | iounmap(vaddr); | |
6540 | return -ENOMEM; | |
6541 | } | |
6542 | ||
6543 | /* This must fit, because of the 32-bit consistent DMA mask. Also, | |
6544 | * although there's no guarantee, we assume that the address is at | |
6545 | * least 4-byte aligned (most likely, it's page-aligned). | |
6546 | */ | |
2b08b3e9 | 6547 | paddr32 = cpu_to_le32(paddr64); |
edd16368 SC |
6548 | |
6549 | cmd->CommandHeader.ReplyQueue = 0; | |
6550 | cmd->CommandHeader.SGList = 0; | |
50a0decf | 6551 | cmd->CommandHeader.SGTotal = cpu_to_le16(0); |
2b08b3e9 | 6552 | cmd->CommandHeader.tag = cpu_to_le64(paddr64); |
edd16368 SC |
6553 | memset(&cmd->CommandHeader.LUN.LunAddrBytes, 0, 8); |
6554 | ||
6555 | cmd->Request.CDBLen = 16; | |
a505b86f SC |
6556 | cmd->Request.type_attr_dir = |
6557 | TYPE_ATTR_DIR(TYPE_MSG, ATTR_HEADOFQUEUE, XFER_NONE); | |
edd16368 SC |
6558 | cmd->Request.Timeout = 0; /* Don't time out */ |
6559 | cmd->Request.CDB[0] = opcode; | |
6560 | cmd->Request.CDB[1] = type; | |
6561 | memset(&cmd->Request.CDB[2], 0, 14); /* rest of the CDB is reserved */ | |
50a0decf | 6562 | cmd->ErrorDescriptor.Addr = |
2b08b3e9 | 6563 | cpu_to_le64((le32_to_cpu(paddr32) + sizeof(*cmd))); |
50a0decf | 6564 | cmd->ErrorDescriptor.Len = cpu_to_le32(sizeof(struct ErrorInfo)); |
edd16368 | 6565 | |
2b08b3e9 | 6566 | writel(le32_to_cpu(paddr32), vaddr + SA5_REQUEST_PORT_OFFSET); |
edd16368 SC |
6567 | |
6568 | for (i = 0; i < HPSA_MSG_SEND_RETRY_LIMIT; i++) { | |
6569 | tag = readl(vaddr + SA5_REPLY_PORT_OFFSET); | |
2b08b3e9 | 6570 | if ((tag & ~HPSA_SIMPLE_ERROR_BITS) == paddr64) |
edd16368 SC |
6571 | break; |
6572 | msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS); | |
6573 | } | |
6574 | ||
6575 | iounmap(vaddr); | |
6576 | ||
6577 | /* we leak the DMA buffer here ... no choice since the controller could | |
6578 | * still complete the command. | |
6579 | */ | |
6580 | if (i == HPSA_MSG_SEND_RETRY_LIMIT) { | |
6581 | dev_err(&pdev->dev, "controller message %02x:%02x timed out\n", | |
6582 | opcode, type); | |
6583 | return -ETIMEDOUT; | |
6584 | } | |
6585 | ||
6586 | pci_free_consistent(pdev, cmd_sz, cmd, paddr64); | |
6587 | ||
6588 | if (tag & HPSA_ERROR_BIT) { | |
6589 | dev_err(&pdev->dev, "controller message %02x:%02x failed\n", | |
6590 | opcode, type); | |
6591 | return -EIO; | |
6592 | } | |
6593 | ||
6594 | dev_info(&pdev->dev, "controller message %02x:%02x succeeded\n", | |
6595 | opcode, type); | |
6596 | return 0; | |
6597 | } | |
6598 | ||
edd16368 SC |
6599 | #define hpsa_noop(p) hpsa_message(p, 3, 0) |
6600 | ||
1df8552a | 6601 | static int hpsa_controller_hard_reset(struct pci_dev *pdev, |
42a91641 | 6602 | void __iomem *vaddr, u32 use_doorbell) |
1df8552a | 6603 | { |
1df8552a SC |
6604 | |
6605 | if (use_doorbell) { | |
6606 | /* For everything after the P600, the PCI power state method | |
6607 | * of resetting the controller doesn't work, so we have this | |
6608 | * other way using the doorbell register. | |
6609 | */ | |
6610 | dev_info(&pdev->dev, "using doorbell to reset controller\n"); | |
cf0b08d0 | 6611 | writel(use_doorbell, vaddr + SA5_DOORBELL); |
85009239 | 6612 | |
00701a96 | 6613 | /* PMC hardware guys tell us we need a 10 second delay after |
85009239 SC |
6614 | * doorbell reset and before any attempt to talk to the board |
6615 | * at all to ensure that this actually works and doesn't fall | |
6616 | * over in some weird corner cases. | |
6617 | */ | |
00701a96 | 6618 | msleep(10000); |
1df8552a SC |
6619 | } else { /* Try to do it the PCI power state way */ |
6620 | ||
6621 | /* Quoting from the Open CISS Specification: "The Power | |
6622 | * Management Control/Status Register (CSR) controls the power | |
6623 | * state of the device. The normal operating state is D0, | |
6624 | * CSR=00h. The software off state is D3, CSR=03h. To reset | |
6625 | * the controller, place the interface device in D3 then to D0, | |
6626 | * this causes a secondary PCI reset which will reset the | |
6627 | * controller." */ | |
2662cab8 DB |
6628 | |
6629 | int rc = 0; | |
6630 | ||
1df8552a | 6631 | dev_info(&pdev->dev, "using PCI PM to reset controller\n"); |
2662cab8 | 6632 | |
1df8552a | 6633 | /* enter the D3hot power management state */ |
2662cab8 DB |
6634 | rc = pci_set_power_state(pdev, PCI_D3hot); |
6635 | if (rc) | |
6636 | return rc; | |
1df8552a SC |
6637 | |
6638 | msleep(500); | |
6639 | ||
6640 | /* enter the D0 power management state */ | |
2662cab8 DB |
6641 | rc = pci_set_power_state(pdev, PCI_D0); |
6642 | if (rc) | |
6643 | return rc; | |
c4853efe MM |
6644 | |
6645 | /* | |
6646 | * The P600 requires a small delay when changing states. | |
6647 | * Otherwise we may think the board did not reset and we bail. | |
6648 | * This for kdump only and is particular to the P600. | |
6649 | */ | |
6650 | msleep(500); | |
1df8552a SC |
6651 | } |
6652 | return 0; | |
6653 | } | |
6654 | ||
6f039790 | 6655 | static void init_driver_version(char *driver_version, int len) |
580ada3c SC |
6656 | { |
6657 | memset(driver_version, 0, len); | |
f79cfec6 | 6658 | strncpy(driver_version, HPSA " " HPSA_DRIVER_VERSION, len - 1); |
580ada3c SC |
6659 | } |
6660 | ||
6f039790 | 6661 | static int write_driver_ver_to_cfgtable(struct CfgTable __iomem *cfgtable) |
580ada3c SC |
6662 | { |
6663 | char *driver_version; | |
6664 | int i, size = sizeof(cfgtable->driver_version); | |
6665 | ||
6666 | driver_version = kmalloc(size, GFP_KERNEL); | |
6667 | if (!driver_version) | |
6668 | return -ENOMEM; | |
6669 | ||
6670 | init_driver_version(driver_version, size); | |
6671 | for (i = 0; i < size; i++) | |
6672 | writeb(driver_version[i], &cfgtable->driver_version[i]); | |
6673 | kfree(driver_version); | |
6674 | return 0; | |
6675 | } | |
6676 | ||
6f039790 GKH |
6677 | static void read_driver_ver_from_cfgtable(struct CfgTable __iomem *cfgtable, |
6678 | unsigned char *driver_ver) | |
580ada3c SC |
6679 | { |
6680 | int i; | |
6681 | ||
6682 | for (i = 0; i < sizeof(cfgtable->driver_version); i++) | |
6683 | driver_ver[i] = readb(&cfgtable->driver_version[i]); | |
6684 | } | |
6685 | ||
6f039790 | 6686 | static int controller_reset_failed(struct CfgTable __iomem *cfgtable) |
580ada3c SC |
6687 | { |
6688 | ||
6689 | char *driver_ver, *old_driver_ver; | |
6690 | int rc, size = sizeof(cfgtable->driver_version); | |
6691 | ||
6692 | old_driver_ver = kmalloc(2 * size, GFP_KERNEL); | |
6693 | if (!old_driver_ver) | |
6694 | return -ENOMEM; | |
6695 | driver_ver = old_driver_ver + size; | |
6696 | ||
6697 | /* After a reset, the 32 bytes of "driver version" in the cfgtable | |
6698 | * should have been changed, otherwise we know the reset failed. | |
6699 | */ | |
6700 | init_driver_version(old_driver_ver, size); | |
6701 | read_driver_ver_from_cfgtable(cfgtable, driver_ver); | |
6702 | rc = !memcmp(driver_ver, old_driver_ver, size); | |
6703 | kfree(old_driver_ver); | |
6704 | return rc; | |
6705 | } | |
edd16368 | 6706 | /* This does a hard reset of the controller using PCI power management |
1df8552a | 6707 | * states or the using the doorbell register. |
edd16368 | 6708 | */ |
6b6c1cd7 | 6709 | static int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev, u32 board_id) |
edd16368 | 6710 | { |
1df8552a SC |
6711 | u64 cfg_offset; |
6712 | u32 cfg_base_addr; | |
6713 | u64 cfg_base_addr_index; | |
6714 | void __iomem *vaddr; | |
6715 | unsigned long paddr; | |
580ada3c | 6716 | u32 misc_fw_support; |
270d05de | 6717 | int rc; |
1df8552a | 6718 | struct CfgTable __iomem *cfgtable; |
cf0b08d0 | 6719 | u32 use_doorbell; |
270d05de | 6720 | u16 command_register; |
edd16368 | 6721 | |
1df8552a SC |
6722 | /* For controllers as old as the P600, this is very nearly |
6723 | * the same thing as | |
edd16368 SC |
6724 | * |
6725 | * pci_save_state(pci_dev); | |
6726 | * pci_set_power_state(pci_dev, PCI_D3hot); | |
6727 | * pci_set_power_state(pci_dev, PCI_D0); | |
6728 | * pci_restore_state(pci_dev); | |
6729 | * | |
1df8552a SC |
6730 | * For controllers newer than the P600, the pci power state |
6731 | * method of resetting doesn't work so we have another way | |
6732 | * using the doorbell register. | |
edd16368 | 6733 | */ |
18867659 | 6734 | |
60f923b9 RE |
6735 | if (!ctlr_is_resettable(board_id)) { |
6736 | dev_warn(&pdev->dev, "Controller not resettable\n"); | |
25c1e56a SC |
6737 | return -ENODEV; |
6738 | } | |
46380786 SC |
6739 | |
6740 | /* if controller is soft- but not hard resettable... */ | |
6741 | if (!ctlr_is_hard_resettable(board_id)) | |
6742 | return -ENOTSUPP; /* try soft reset later. */ | |
18867659 | 6743 | |
270d05de SC |
6744 | /* Save the PCI command register */ |
6745 | pci_read_config_word(pdev, 4, &command_register); | |
270d05de | 6746 | pci_save_state(pdev); |
edd16368 | 6747 | |
1df8552a SC |
6748 | /* find the first memory BAR, so we can find the cfg table */ |
6749 | rc = hpsa_pci_find_memory_BAR(pdev, &paddr); | |
6750 | if (rc) | |
6751 | return rc; | |
6752 | vaddr = remap_pci_mem(paddr, 0x250); | |
6753 | if (!vaddr) | |
6754 | return -ENOMEM; | |
edd16368 | 6755 | |
1df8552a SC |
6756 | /* find cfgtable in order to check if reset via doorbell is supported */ |
6757 | rc = hpsa_find_cfg_addrs(pdev, vaddr, &cfg_base_addr, | |
6758 | &cfg_base_addr_index, &cfg_offset); | |
6759 | if (rc) | |
6760 | goto unmap_vaddr; | |
6761 | cfgtable = remap_pci_mem(pci_resource_start(pdev, | |
6762 | cfg_base_addr_index) + cfg_offset, sizeof(*cfgtable)); | |
6763 | if (!cfgtable) { | |
6764 | rc = -ENOMEM; | |
6765 | goto unmap_vaddr; | |
6766 | } | |
580ada3c SC |
6767 | rc = write_driver_ver_to_cfgtable(cfgtable); |
6768 | if (rc) | |
03741d95 | 6769 | goto unmap_cfgtable; |
edd16368 | 6770 | |
cf0b08d0 SC |
6771 | /* If reset via doorbell register is supported, use that. |
6772 | * There are two such methods. Favor the newest method. | |
6773 | */ | |
1df8552a | 6774 | misc_fw_support = readl(&cfgtable->misc_fw_support); |
cf0b08d0 SC |
6775 | use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET2; |
6776 | if (use_doorbell) { | |
6777 | use_doorbell = DOORBELL_CTLR_RESET2; | |
6778 | } else { | |
6779 | use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET; | |
6780 | if (use_doorbell) { | |
050f7147 SC |
6781 | dev_warn(&pdev->dev, |
6782 | "Soft reset not supported. Firmware update is required.\n"); | |
64670ac8 | 6783 | rc = -ENOTSUPP; /* try soft reset */ |
cf0b08d0 SC |
6784 | goto unmap_cfgtable; |
6785 | } | |
6786 | } | |
edd16368 | 6787 | |
1df8552a SC |
6788 | rc = hpsa_controller_hard_reset(pdev, vaddr, use_doorbell); |
6789 | if (rc) | |
6790 | goto unmap_cfgtable; | |
edd16368 | 6791 | |
270d05de | 6792 | pci_restore_state(pdev); |
270d05de | 6793 | pci_write_config_word(pdev, 4, command_register); |
edd16368 | 6794 | |
1df8552a SC |
6795 | /* Some devices (notably the HP Smart Array 5i Controller) |
6796 | need a little pause here */ | |
6797 | msleep(HPSA_POST_RESET_PAUSE_MSECS); | |
6798 | ||
fe5389c8 SC |
6799 | rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_READY); |
6800 | if (rc) { | |
6801 | dev_warn(&pdev->dev, | |
050f7147 | 6802 | "Failed waiting for board to become ready after hard reset\n"); |
fe5389c8 SC |
6803 | goto unmap_cfgtable; |
6804 | } | |
fe5389c8 | 6805 | |
580ada3c SC |
6806 | rc = controller_reset_failed(vaddr); |
6807 | if (rc < 0) | |
6808 | goto unmap_cfgtable; | |
6809 | if (rc) { | |
64670ac8 SC |
6810 | dev_warn(&pdev->dev, "Unable to successfully reset " |
6811 | "controller. Will try soft reset.\n"); | |
6812 | rc = -ENOTSUPP; | |
580ada3c | 6813 | } else { |
64670ac8 | 6814 | dev_info(&pdev->dev, "board ready after hard reset.\n"); |
1df8552a SC |
6815 | } |
6816 | ||
6817 | unmap_cfgtable: | |
6818 | iounmap(cfgtable); | |
6819 | ||
6820 | unmap_vaddr: | |
6821 | iounmap(vaddr); | |
6822 | return rc; | |
edd16368 SC |
6823 | } |
6824 | ||
6825 | /* | |
6826 | * We cannot read the structure directly, for portability we must use | |
6827 | * the io functions. | |
6828 | * This is for debug only. | |
6829 | */ | |
42a91641 | 6830 | static void print_cfg_table(struct device *dev, struct CfgTable __iomem *tb) |
edd16368 | 6831 | { |
58f8665c | 6832 | #ifdef HPSA_DEBUG |
edd16368 SC |
6833 | int i; |
6834 | char temp_name[17]; | |
6835 | ||
6836 | dev_info(dev, "Controller Configuration information\n"); | |
6837 | dev_info(dev, "------------------------------------\n"); | |
6838 | for (i = 0; i < 4; i++) | |
6839 | temp_name[i] = readb(&(tb->Signature[i])); | |
6840 | temp_name[4] = '\0'; | |
6841 | dev_info(dev, " Signature = %s\n", temp_name); | |
6842 | dev_info(dev, " Spec Number = %d\n", readl(&(tb->SpecValence))); | |
6843 | dev_info(dev, " Transport methods supported = 0x%x\n", | |
6844 | readl(&(tb->TransportSupport))); | |
6845 | dev_info(dev, " Transport methods active = 0x%x\n", | |
6846 | readl(&(tb->TransportActive))); | |
6847 | dev_info(dev, " Requested transport Method = 0x%x\n", | |
6848 | readl(&(tb->HostWrite.TransportRequest))); | |
6849 | dev_info(dev, " Coalesce Interrupt Delay = 0x%x\n", | |
6850 | readl(&(tb->HostWrite.CoalIntDelay))); | |
6851 | dev_info(dev, " Coalesce Interrupt Count = 0x%x\n", | |
6852 | readl(&(tb->HostWrite.CoalIntCount))); | |
69d6e33d | 6853 | dev_info(dev, " Max outstanding commands = %d\n", |
edd16368 SC |
6854 | readl(&(tb->CmdsOutMax))); |
6855 | dev_info(dev, " Bus Types = 0x%x\n", readl(&(tb->BusTypes))); | |
6856 | for (i = 0; i < 16; i++) | |
6857 | temp_name[i] = readb(&(tb->ServerName[i])); | |
6858 | temp_name[16] = '\0'; | |
6859 | dev_info(dev, " Server Name = %s\n", temp_name); | |
6860 | dev_info(dev, " Heartbeat Counter = 0x%x\n\n\n", | |
6861 | readl(&(tb->HeartBeat))); | |
edd16368 | 6862 | #endif /* HPSA_DEBUG */ |
58f8665c | 6863 | } |
edd16368 SC |
6864 | |
6865 | static int find_PCI_BAR_index(struct pci_dev *pdev, unsigned long pci_bar_addr) | |
6866 | { | |
6867 | int i, offset, mem_type, bar_type; | |
6868 | ||
6869 | if (pci_bar_addr == PCI_BASE_ADDRESS_0) /* looking for BAR zero? */ | |
6870 | return 0; | |
6871 | offset = 0; | |
6872 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { | |
6873 | bar_type = pci_resource_flags(pdev, i) & PCI_BASE_ADDRESS_SPACE; | |
6874 | if (bar_type == PCI_BASE_ADDRESS_SPACE_IO) | |
6875 | offset += 4; | |
6876 | else { | |
6877 | mem_type = pci_resource_flags(pdev, i) & | |
6878 | PCI_BASE_ADDRESS_MEM_TYPE_MASK; | |
6879 | switch (mem_type) { | |
6880 | case PCI_BASE_ADDRESS_MEM_TYPE_32: | |
6881 | case PCI_BASE_ADDRESS_MEM_TYPE_1M: | |
6882 | offset += 4; /* 32 bit */ | |
6883 | break; | |
6884 | case PCI_BASE_ADDRESS_MEM_TYPE_64: | |
6885 | offset += 8; | |
6886 | break; | |
6887 | default: /* reserved in PCI 2.2 */ | |
6888 | dev_warn(&pdev->dev, | |
6889 | "base address is invalid\n"); | |
6890 | return -1; | |
6891 | break; | |
6892 | } | |
6893 | } | |
6894 | if (offset == pci_bar_addr - PCI_BASE_ADDRESS_0) | |
6895 | return i + 1; | |
6896 | } | |
6897 | return -1; | |
6898 | } | |
6899 | ||
cc64c817 RE |
6900 | static void hpsa_disable_interrupt_mode(struct ctlr_info *h) |
6901 | { | |
6902 | if (h->msix_vector) { | |
6903 | if (h->pdev->msix_enabled) | |
6904 | pci_disable_msix(h->pdev); | |
105a3dbc | 6905 | h->msix_vector = 0; |
cc64c817 RE |
6906 | } else if (h->msi_vector) { |
6907 | if (h->pdev->msi_enabled) | |
6908 | pci_disable_msi(h->pdev); | |
105a3dbc | 6909 | h->msi_vector = 0; |
cc64c817 RE |
6910 | } |
6911 | } | |
6912 | ||
edd16368 | 6913 | /* If MSI/MSI-X is supported by the kernel we will try to enable it on |
050f7147 | 6914 | * controllers that are capable. If not, we use legacy INTx mode. |
edd16368 | 6915 | */ |
6f039790 | 6916 | static void hpsa_interrupt_mode(struct ctlr_info *h) |
edd16368 SC |
6917 | { |
6918 | #ifdef CONFIG_PCI_MSI | |
254f796b MG |
6919 | int err, i; |
6920 | struct msix_entry hpsa_msix_entries[MAX_REPLY_QUEUES]; | |
6921 | ||
6922 | for (i = 0; i < MAX_REPLY_QUEUES; i++) { | |
6923 | hpsa_msix_entries[i].vector = 0; | |
6924 | hpsa_msix_entries[i].entry = i; | |
6925 | } | |
edd16368 SC |
6926 | |
6927 | /* Some boards advertise MSI but don't really support it */ | |
6b3f4c52 SC |
6928 | if ((h->board_id == 0x40700E11) || (h->board_id == 0x40800E11) || |
6929 | (h->board_id == 0x40820E11) || (h->board_id == 0x40830E11)) | |
edd16368 | 6930 | goto default_int_mode; |
55c06c71 | 6931 | if (pci_find_capability(h->pdev, PCI_CAP_ID_MSIX)) { |
050f7147 | 6932 | dev_info(&h->pdev->dev, "MSI-X capable controller\n"); |
eee0f03a | 6933 | h->msix_vector = MAX_REPLY_QUEUES; |
f89439bc SC |
6934 | if (h->msix_vector > num_online_cpus()) |
6935 | h->msix_vector = num_online_cpus(); | |
18fce3c4 AG |
6936 | err = pci_enable_msix_range(h->pdev, hpsa_msix_entries, |
6937 | 1, h->msix_vector); | |
6938 | if (err < 0) { | |
6939 | dev_warn(&h->pdev->dev, "MSI-X init failed %d\n", err); | |
6940 | h->msix_vector = 0; | |
6941 | goto single_msi_mode; | |
6942 | } else if (err < h->msix_vector) { | |
55c06c71 | 6943 | dev_warn(&h->pdev->dev, "only %d MSI-X vectors " |
edd16368 | 6944 | "available\n", err); |
edd16368 | 6945 | } |
18fce3c4 AG |
6946 | h->msix_vector = err; |
6947 | for (i = 0; i < h->msix_vector; i++) | |
6948 | h->intr[i] = hpsa_msix_entries[i].vector; | |
6949 | return; | |
edd16368 | 6950 | } |
18fce3c4 | 6951 | single_msi_mode: |
55c06c71 | 6952 | if (pci_find_capability(h->pdev, PCI_CAP_ID_MSI)) { |
050f7147 | 6953 | dev_info(&h->pdev->dev, "MSI capable controller\n"); |
55c06c71 | 6954 | if (!pci_enable_msi(h->pdev)) |
edd16368 SC |
6955 | h->msi_vector = 1; |
6956 | else | |
55c06c71 | 6957 | dev_warn(&h->pdev->dev, "MSI init failed\n"); |
edd16368 SC |
6958 | } |
6959 | default_int_mode: | |
6960 | #endif /* CONFIG_PCI_MSI */ | |
6961 | /* if we get here we're going to use the default interrupt mode */ | |
a9a3a273 | 6962 | h->intr[h->intr_mode] = h->pdev->irq; |
edd16368 SC |
6963 | } |
6964 | ||
6f039790 | 6965 | static int hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id) |
e5c880d1 SC |
6966 | { |
6967 | int i; | |
6968 | u32 subsystem_vendor_id, subsystem_device_id; | |
6969 | ||
6970 | subsystem_vendor_id = pdev->subsystem_vendor; | |
6971 | subsystem_device_id = pdev->subsystem_device; | |
6972 | *board_id = ((subsystem_device_id << 16) & 0xffff0000) | | |
6973 | subsystem_vendor_id; | |
6974 | ||
6975 | for (i = 0; i < ARRAY_SIZE(products); i++) | |
6976 | if (*board_id == products[i].board_id) | |
6977 | return i; | |
6978 | ||
6798cc0a SC |
6979 | if ((subsystem_vendor_id != PCI_VENDOR_ID_HP && |
6980 | subsystem_vendor_id != PCI_VENDOR_ID_COMPAQ) || | |
6981 | !hpsa_allow_any) { | |
e5c880d1 SC |
6982 | dev_warn(&pdev->dev, "unrecognized board ID: " |
6983 | "0x%08x, ignoring.\n", *board_id); | |
6984 | return -ENODEV; | |
6985 | } | |
6986 | return ARRAY_SIZE(products) - 1; /* generic unknown smart array */ | |
6987 | } | |
6988 | ||
6f039790 GKH |
6989 | static int hpsa_pci_find_memory_BAR(struct pci_dev *pdev, |
6990 | unsigned long *memory_bar) | |
3a7774ce SC |
6991 | { |
6992 | int i; | |
6993 | ||
6994 | for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) | |
12d2cd47 | 6995 | if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) { |
3a7774ce | 6996 | /* addressing mode bits already removed */ |
12d2cd47 SC |
6997 | *memory_bar = pci_resource_start(pdev, i); |
6998 | dev_dbg(&pdev->dev, "memory BAR = %lx\n", | |
3a7774ce SC |
6999 | *memory_bar); |
7000 | return 0; | |
7001 | } | |
12d2cd47 | 7002 | dev_warn(&pdev->dev, "no memory BAR found\n"); |
3a7774ce SC |
7003 | return -ENODEV; |
7004 | } | |
7005 | ||
6f039790 GKH |
7006 | static int hpsa_wait_for_board_state(struct pci_dev *pdev, void __iomem *vaddr, |
7007 | int wait_for_ready) | |
2c4c8c8b | 7008 | { |
fe5389c8 | 7009 | int i, iterations; |
2c4c8c8b | 7010 | u32 scratchpad; |
fe5389c8 SC |
7011 | if (wait_for_ready) |
7012 | iterations = HPSA_BOARD_READY_ITERATIONS; | |
7013 | else | |
7014 | iterations = HPSA_BOARD_NOT_READY_ITERATIONS; | |
2c4c8c8b | 7015 | |
fe5389c8 SC |
7016 | for (i = 0; i < iterations; i++) { |
7017 | scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET); | |
7018 | if (wait_for_ready) { | |
7019 | if (scratchpad == HPSA_FIRMWARE_READY) | |
7020 | return 0; | |
7021 | } else { | |
7022 | if (scratchpad != HPSA_FIRMWARE_READY) | |
7023 | return 0; | |
7024 | } | |
2c4c8c8b SC |
7025 | msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS); |
7026 | } | |
fe5389c8 | 7027 | dev_warn(&pdev->dev, "board not ready, timed out.\n"); |
2c4c8c8b SC |
7028 | return -ENODEV; |
7029 | } | |
7030 | ||
6f039790 GKH |
7031 | static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr, |
7032 | u32 *cfg_base_addr, u64 *cfg_base_addr_index, | |
7033 | u64 *cfg_offset) | |
a51fd47f SC |
7034 | { |
7035 | *cfg_base_addr = readl(vaddr + SA5_CTCFG_OFFSET); | |
7036 | *cfg_offset = readl(vaddr + SA5_CTMEM_OFFSET); | |
7037 | *cfg_base_addr &= (u32) 0x0000ffff; | |
7038 | *cfg_base_addr_index = find_PCI_BAR_index(pdev, *cfg_base_addr); | |
7039 | if (*cfg_base_addr_index == -1) { | |
7040 | dev_warn(&pdev->dev, "cannot find cfg_base_addr_index\n"); | |
7041 | return -ENODEV; | |
7042 | } | |
7043 | return 0; | |
7044 | } | |
7045 | ||
195f2c65 RE |
7046 | static void hpsa_free_cfgtables(struct ctlr_info *h) |
7047 | { | |
105a3dbc | 7048 | if (h->transtable) { |
195f2c65 | 7049 | iounmap(h->transtable); |
105a3dbc RE |
7050 | h->transtable = NULL; |
7051 | } | |
7052 | if (h->cfgtable) { | |
195f2c65 | 7053 | iounmap(h->cfgtable); |
105a3dbc RE |
7054 | h->cfgtable = NULL; |
7055 | } | |
195f2c65 RE |
7056 | } |
7057 | ||
7058 | /* Find and map CISS config table and transfer table | |
7059 | + * several items must be unmapped (freed) later | |
7060 | + * */ | |
6f039790 | 7061 | static int hpsa_find_cfgtables(struct ctlr_info *h) |
edd16368 | 7062 | { |
01a02ffc SC |
7063 | u64 cfg_offset; |
7064 | u32 cfg_base_addr; | |
7065 | u64 cfg_base_addr_index; | |
303932fd | 7066 | u32 trans_offset; |
a51fd47f | 7067 | int rc; |
77c4495c | 7068 | |
a51fd47f SC |
7069 | rc = hpsa_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr, |
7070 | &cfg_base_addr_index, &cfg_offset); | |
7071 | if (rc) | |
7072 | return rc; | |
77c4495c | 7073 | h->cfgtable = remap_pci_mem(pci_resource_start(h->pdev, |
a51fd47f | 7074 | cfg_base_addr_index) + cfg_offset, sizeof(*h->cfgtable)); |
cd3c81c4 RE |
7075 | if (!h->cfgtable) { |
7076 | dev_err(&h->pdev->dev, "Failed mapping cfgtable\n"); | |
77c4495c | 7077 | return -ENOMEM; |
cd3c81c4 | 7078 | } |
580ada3c SC |
7079 | rc = write_driver_ver_to_cfgtable(h->cfgtable); |
7080 | if (rc) | |
7081 | return rc; | |
77c4495c | 7082 | /* Find performant mode table. */ |
a51fd47f | 7083 | trans_offset = readl(&h->cfgtable->TransMethodOffset); |
77c4495c SC |
7084 | h->transtable = remap_pci_mem(pci_resource_start(h->pdev, |
7085 | cfg_base_addr_index)+cfg_offset+trans_offset, | |
7086 | sizeof(*h->transtable)); | |
195f2c65 RE |
7087 | if (!h->transtable) { |
7088 | dev_err(&h->pdev->dev, "Failed mapping transfer table\n"); | |
7089 | hpsa_free_cfgtables(h); | |
77c4495c | 7090 | return -ENOMEM; |
195f2c65 | 7091 | } |
77c4495c SC |
7092 | return 0; |
7093 | } | |
7094 | ||
6f039790 | 7095 | static void hpsa_get_max_perf_mode_cmds(struct ctlr_info *h) |
cba3d38b | 7096 | { |
41ce4c35 SC |
7097 | #define MIN_MAX_COMMANDS 16 |
7098 | BUILD_BUG_ON(MIN_MAX_COMMANDS <= HPSA_NRESERVED_CMDS); | |
7099 | ||
7100 | h->max_commands = readl(&h->cfgtable->MaxPerformantModeCommands); | |
72ceeaec SC |
7101 | |
7102 | /* Limit commands in memory limited kdump scenario. */ | |
7103 | if (reset_devices && h->max_commands > 32) | |
7104 | h->max_commands = 32; | |
7105 | ||
41ce4c35 SC |
7106 | if (h->max_commands < MIN_MAX_COMMANDS) { |
7107 | dev_warn(&h->pdev->dev, | |
7108 | "Controller reports max supported commands of %d Using %d instead. Ensure that firmware is up to date.\n", | |
7109 | h->max_commands, | |
7110 | MIN_MAX_COMMANDS); | |
7111 | h->max_commands = MIN_MAX_COMMANDS; | |
cba3d38b SC |
7112 | } |
7113 | } | |
7114 | ||
c7ee65b3 WS |
7115 | /* If the controller reports that the total max sg entries is greater than 512, |
7116 | * then we know that chained SG blocks work. (Original smart arrays did not | |
7117 | * support chained SG blocks and would return zero for max sg entries.) | |
7118 | */ | |
7119 | static int hpsa_supports_chained_sg_blocks(struct ctlr_info *h) | |
7120 | { | |
7121 | return h->maxsgentries > 512; | |
7122 | } | |
7123 | ||
b93d7536 SC |
7124 | /* Interrogate the hardware for some limits: |
7125 | * max commands, max SG elements without chaining, and with chaining, | |
7126 | * SG chain block size, etc. | |
7127 | */ | |
6f039790 | 7128 | static void hpsa_find_board_params(struct ctlr_info *h) |
b93d7536 | 7129 | { |
cba3d38b | 7130 | hpsa_get_max_perf_mode_cmds(h); |
45fcb86e | 7131 | h->nr_cmds = h->max_commands; |
b93d7536 | 7132 | h->maxsgentries = readl(&(h->cfgtable->MaxScatterGatherElements)); |
283b4a9b | 7133 | h->fw_support = readl(&(h->cfgtable->misc_fw_support)); |
c7ee65b3 WS |
7134 | if (hpsa_supports_chained_sg_blocks(h)) { |
7135 | /* Limit in-command s/g elements to 32 save dma'able memory. */ | |
b93d7536 | 7136 | h->max_cmd_sg_entries = 32; |
1a63ea6f | 7137 | h->chainsize = h->maxsgentries - h->max_cmd_sg_entries; |
b93d7536 SC |
7138 | h->maxsgentries--; /* save one for chain pointer */ |
7139 | } else { | |
c7ee65b3 WS |
7140 | /* |
7141 | * Original smart arrays supported at most 31 s/g entries | |
7142 | * embedded inline in the command (trying to use more | |
7143 | * would lock up the controller) | |
7144 | */ | |
7145 | h->max_cmd_sg_entries = 31; | |
1a63ea6f | 7146 | h->maxsgentries = 31; /* default to traditional values */ |
c7ee65b3 | 7147 | h->chainsize = 0; |
b93d7536 | 7148 | } |
75167d2c SC |
7149 | |
7150 | /* Find out what task management functions are supported and cache */ | |
7151 | h->TMFSupportFlags = readl(&(h->cfgtable->TMFSupportFlags)); | |
0e7a7fce ST |
7152 | if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags)) |
7153 | dev_warn(&h->pdev->dev, "Physical aborts not supported\n"); | |
7154 | if (!(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags)) | |
7155 | dev_warn(&h->pdev->dev, "Logical aborts not supported\n"); | |
8be986cc SC |
7156 | if (!(HPSATMF_IOACCEL_ENABLED & h->TMFSupportFlags)) |
7157 | dev_warn(&h->pdev->dev, "HP SSD Smart Path aborts not supported\n"); | |
b93d7536 SC |
7158 | } |
7159 | ||
76c46e49 SC |
7160 | static inline bool hpsa_CISS_signature_present(struct ctlr_info *h) |
7161 | { | |
0fc9fd40 | 7162 | if (!check_signature(h->cfgtable->Signature, "CISS", 4)) { |
050f7147 | 7163 | dev_err(&h->pdev->dev, "not a valid CISS config table\n"); |
76c46e49 SC |
7164 | return false; |
7165 | } | |
7166 | return true; | |
7167 | } | |
7168 | ||
97a5e98c | 7169 | static inline void hpsa_set_driver_support_bits(struct ctlr_info *h) |
f7c39101 | 7170 | { |
97a5e98c | 7171 | u32 driver_support; |
f7c39101 | 7172 | |
97a5e98c | 7173 | driver_support = readl(&(h->cfgtable->driver_support)); |
0b9e7b74 AB |
7174 | /* Need to enable prefetch in the SCSI core for 6400 in x86 */ |
7175 | #ifdef CONFIG_X86 | |
97a5e98c | 7176 | driver_support |= ENABLE_SCSI_PREFETCH; |
f7c39101 | 7177 | #endif |
28e13446 SC |
7178 | driver_support |= ENABLE_UNIT_ATTN; |
7179 | writel(driver_support, &(h->cfgtable->driver_support)); | |
f7c39101 SC |
7180 | } |
7181 | ||
3d0eab67 SC |
7182 | /* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result |
7183 | * in a prefetch beyond physical memory. | |
7184 | */ | |
7185 | static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info *h) | |
7186 | { | |
7187 | u32 dma_prefetch; | |
7188 | ||
7189 | if (h->board_id != 0x3225103C) | |
7190 | return; | |
7191 | dma_prefetch = readl(h->vaddr + I2O_DMA1_CFG); | |
7192 | dma_prefetch |= 0x8000; | |
7193 | writel(dma_prefetch, h->vaddr + I2O_DMA1_CFG); | |
7194 | } | |
7195 | ||
c706a795 | 7196 | static int hpsa_wait_for_clear_event_notify_ack(struct ctlr_info *h) |
76438d08 SC |
7197 | { |
7198 | int i; | |
7199 | u32 doorbell_value; | |
7200 | unsigned long flags; | |
7201 | /* wait until the clear_event_notify bit 6 is cleared by controller. */ | |
007e7aa9 | 7202 | for (i = 0; i < MAX_CLEAR_EVENT_WAIT; i++) { |
76438d08 SC |
7203 | spin_lock_irqsave(&h->lock, flags); |
7204 | doorbell_value = readl(h->vaddr + SA5_DOORBELL); | |
7205 | spin_unlock_irqrestore(&h->lock, flags); | |
7206 | if (!(doorbell_value & DOORBELL_CLEAR_EVENTS)) | |
c706a795 | 7207 | goto done; |
76438d08 | 7208 | /* delay and try again */ |
007e7aa9 | 7209 | msleep(CLEAR_EVENT_WAIT_INTERVAL); |
76438d08 | 7210 | } |
c706a795 RE |
7211 | return -ENODEV; |
7212 | done: | |
7213 | return 0; | |
76438d08 SC |
7214 | } |
7215 | ||
c706a795 | 7216 | static int hpsa_wait_for_mode_change_ack(struct ctlr_info *h) |
eb6b2ae9 SC |
7217 | { |
7218 | int i; | |
6eaf46fd SC |
7219 | u32 doorbell_value; |
7220 | unsigned long flags; | |
eb6b2ae9 SC |
7221 | |
7222 | /* under certain very rare conditions, this can take awhile. | |
7223 | * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right | |
7224 | * as we enter this code.) | |
7225 | */ | |
007e7aa9 | 7226 | for (i = 0; i < MAX_MODE_CHANGE_WAIT; i++) { |
25163bd5 WS |
7227 | if (h->remove_in_progress) |
7228 | goto done; | |
6eaf46fd SC |
7229 | spin_lock_irqsave(&h->lock, flags); |
7230 | doorbell_value = readl(h->vaddr + SA5_DOORBELL); | |
7231 | spin_unlock_irqrestore(&h->lock, flags); | |
382be668 | 7232 | if (!(doorbell_value & CFGTBL_ChangeReq)) |
c706a795 | 7233 | goto done; |
eb6b2ae9 | 7234 | /* delay and try again */ |
007e7aa9 | 7235 | msleep(MODE_CHANGE_WAIT_INTERVAL); |
eb6b2ae9 | 7236 | } |
c706a795 RE |
7237 | return -ENODEV; |
7238 | done: | |
7239 | return 0; | |
3f4336f3 SC |
7240 | } |
7241 | ||
c706a795 | 7242 | /* return -ENODEV or other reason on error, 0 on success */ |
6f039790 | 7243 | static int hpsa_enter_simple_mode(struct ctlr_info *h) |
3f4336f3 SC |
7244 | { |
7245 | u32 trans_support; | |
7246 | ||
7247 | trans_support = readl(&(h->cfgtable->TransportSupport)); | |
7248 | if (!(trans_support & SIMPLE_MODE)) | |
7249 | return -ENOTSUPP; | |
7250 | ||
7251 | h->max_commands = readl(&(h->cfgtable->CmdsOutMax)); | |
283b4a9b | 7252 | |
3f4336f3 SC |
7253 | /* Update the field, and then ring the doorbell */ |
7254 | writel(CFGTBL_Trans_Simple, &(h->cfgtable->HostWrite.TransportRequest)); | |
b9af4937 | 7255 | writel(0, &h->cfgtable->HostWrite.command_pool_addr_hi); |
3f4336f3 | 7256 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); |
c706a795 RE |
7257 | if (hpsa_wait_for_mode_change_ack(h)) |
7258 | goto error; | |
eb6b2ae9 | 7259 | print_cfg_table(&h->pdev->dev, h->cfgtable); |
283b4a9b SC |
7260 | if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) |
7261 | goto error; | |
960a30e7 | 7262 | h->transMethod = CFGTBL_Trans_Simple; |
eb6b2ae9 | 7263 | return 0; |
283b4a9b | 7264 | error: |
050f7147 | 7265 | dev_err(&h->pdev->dev, "failed to enter simple mode\n"); |
283b4a9b | 7266 | return -ENODEV; |
eb6b2ae9 SC |
7267 | } |
7268 | ||
195f2c65 RE |
7269 | /* free items allocated or mapped by hpsa_pci_init */ |
7270 | static void hpsa_free_pci_init(struct ctlr_info *h) | |
7271 | { | |
7272 | hpsa_free_cfgtables(h); /* pci_init 4 */ | |
7273 | iounmap(h->vaddr); /* pci_init 3 */ | |
105a3dbc | 7274 | h->vaddr = NULL; |
195f2c65 | 7275 | hpsa_disable_interrupt_mode(h); /* pci_init 2 */ |
943a7021 RE |
7276 | /* |
7277 | * call pci_disable_device before pci_release_regions per | |
7278 | * Documentation/PCI/pci.txt | |
7279 | */ | |
195f2c65 | 7280 | pci_disable_device(h->pdev); /* pci_init 1 */ |
943a7021 | 7281 | pci_release_regions(h->pdev); /* pci_init 2 */ |
195f2c65 RE |
7282 | } |
7283 | ||
7284 | /* several items must be freed later */ | |
6f039790 | 7285 | static int hpsa_pci_init(struct ctlr_info *h) |
77c4495c | 7286 | { |
eb6b2ae9 | 7287 | int prod_index, err; |
edd16368 | 7288 | |
e5c880d1 SC |
7289 | prod_index = hpsa_lookup_board_id(h->pdev, &h->board_id); |
7290 | if (prod_index < 0) | |
60f923b9 | 7291 | return prod_index; |
e5c880d1 SC |
7292 | h->product_name = products[prod_index].product_name; |
7293 | h->access = *(products[prod_index].access); | |
edd16368 | 7294 | |
9b5c48c2 SC |
7295 | h->needs_abort_tags_swizzled = |
7296 | ctlr_needs_abort_tags_swizzled(h->board_id); | |
7297 | ||
e5a44df8 MG |
7298 | pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S | |
7299 | PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM); | |
7300 | ||
55c06c71 | 7301 | err = pci_enable_device(h->pdev); |
edd16368 | 7302 | if (err) { |
195f2c65 | 7303 | dev_err(&h->pdev->dev, "failed to enable PCI device\n"); |
943a7021 | 7304 | pci_disable_device(h->pdev); |
edd16368 SC |
7305 | return err; |
7306 | } | |
7307 | ||
f79cfec6 | 7308 | err = pci_request_regions(h->pdev, HPSA); |
edd16368 | 7309 | if (err) { |
55c06c71 | 7310 | dev_err(&h->pdev->dev, |
195f2c65 | 7311 | "failed to obtain PCI resources\n"); |
943a7021 RE |
7312 | pci_disable_device(h->pdev); |
7313 | return err; | |
edd16368 | 7314 | } |
4fa604e1 RE |
7315 | |
7316 | pci_set_master(h->pdev); | |
7317 | ||
6b3f4c52 | 7318 | hpsa_interrupt_mode(h); |
12d2cd47 | 7319 | err = hpsa_pci_find_memory_BAR(h->pdev, &h->paddr); |
3a7774ce | 7320 | if (err) |
195f2c65 | 7321 | goto clean2; /* intmode+region, pci */ |
edd16368 | 7322 | h->vaddr = remap_pci_mem(h->paddr, 0x250); |
204892e9 | 7323 | if (!h->vaddr) { |
195f2c65 | 7324 | dev_err(&h->pdev->dev, "failed to remap PCI mem\n"); |
204892e9 | 7325 | err = -ENOMEM; |
195f2c65 | 7326 | goto clean2; /* intmode+region, pci */ |
204892e9 | 7327 | } |
fe5389c8 | 7328 | err = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY); |
2c4c8c8b | 7329 | if (err) |
195f2c65 | 7330 | goto clean3; /* vaddr, intmode+region, pci */ |
77c4495c SC |
7331 | err = hpsa_find_cfgtables(h); |
7332 | if (err) | |
195f2c65 | 7333 | goto clean3; /* vaddr, intmode+region, pci */ |
b93d7536 | 7334 | hpsa_find_board_params(h); |
edd16368 | 7335 | |
76c46e49 | 7336 | if (!hpsa_CISS_signature_present(h)) { |
edd16368 | 7337 | err = -ENODEV; |
195f2c65 | 7338 | goto clean4; /* cfgtables, vaddr, intmode+region, pci */ |
edd16368 | 7339 | } |
97a5e98c | 7340 | hpsa_set_driver_support_bits(h); |
3d0eab67 | 7341 | hpsa_p600_dma_prefetch_quirk(h); |
eb6b2ae9 SC |
7342 | err = hpsa_enter_simple_mode(h); |
7343 | if (err) | |
195f2c65 | 7344 | goto clean4; /* cfgtables, vaddr, intmode+region, pci */ |
edd16368 SC |
7345 | return 0; |
7346 | ||
195f2c65 RE |
7347 | clean4: /* cfgtables, vaddr, intmode+region, pci */ |
7348 | hpsa_free_cfgtables(h); | |
7349 | clean3: /* vaddr, intmode+region, pci */ | |
7350 | iounmap(h->vaddr); | |
105a3dbc | 7351 | h->vaddr = NULL; |
195f2c65 RE |
7352 | clean2: /* intmode+region, pci */ |
7353 | hpsa_disable_interrupt_mode(h); | |
943a7021 RE |
7354 | /* |
7355 | * call pci_disable_device before pci_release_regions per | |
7356 | * Documentation/PCI/pci.txt | |
7357 | */ | |
195f2c65 | 7358 | pci_disable_device(h->pdev); |
943a7021 | 7359 | pci_release_regions(h->pdev); |
edd16368 SC |
7360 | return err; |
7361 | } | |
7362 | ||
6f039790 | 7363 | static void hpsa_hba_inquiry(struct ctlr_info *h) |
339b2b14 SC |
7364 | { |
7365 | int rc; | |
7366 | ||
7367 | #define HBA_INQUIRY_BYTE_COUNT 64 | |
7368 | h->hba_inquiry_data = kmalloc(HBA_INQUIRY_BYTE_COUNT, GFP_KERNEL); | |
7369 | if (!h->hba_inquiry_data) | |
7370 | return; | |
7371 | rc = hpsa_scsi_do_inquiry(h, RAID_CTLR_LUNID, 0, | |
7372 | h->hba_inquiry_data, HBA_INQUIRY_BYTE_COUNT); | |
7373 | if (rc != 0) { | |
7374 | kfree(h->hba_inquiry_data); | |
7375 | h->hba_inquiry_data = NULL; | |
7376 | } | |
7377 | } | |
7378 | ||
6b6c1cd7 | 7379 | static int hpsa_init_reset_devices(struct pci_dev *pdev, u32 board_id) |
4c2a8c40 | 7380 | { |
1df8552a | 7381 | int rc, i; |
3b747298 | 7382 | void __iomem *vaddr; |
4c2a8c40 SC |
7383 | |
7384 | if (!reset_devices) | |
7385 | return 0; | |
7386 | ||
132aa220 TH |
7387 | /* kdump kernel is loading, we don't know in which state is |
7388 | * the pci interface. The dev->enable_cnt is equal zero | |
7389 | * so we call enable+disable, wait a while and switch it on. | |
7390 | */ | |
7391 | rc = pci_enable_device(pdev); | |
7392 | if (rc) { | |
7393 | dev_warn(&pdev->dev, "Failed to enable PCI device\n"); | |
7394 | return -ENODEV; | |
7395 | } | |
7396 | pci_disable_device(pdev); | |
7397 | msleep(260); /* a randomly chosen number */ | |
7398 | rc = pci_enable_device(pdev); | |
7399 | if (rc) { | |
7400 | dev_warn(&pdev->dev, "failed to enable device.\n"); | |
7401 | return -ENODEV; | |
7402 | } | |
4fa604e1 | 7403 | |
859c75ab | 7404 | pci_set_master(pdev); |
4fa604e1 | 7405 | |
3b747298 TH |
7406 | vaddr = pci_ioremap_bar(pdev, 0); |
7407 | if (vaddr == NULL) { | |
7408 | rc = -ENOMEM; | |
7409 | goto out_disable; | |
7410 | } | |
7411 | writel(SA5_INTR_OFF, vaddr + SA5_REPLY_INTR_MASK_OFFSET); | |
7412 | iounmap(vaddr); | |
7413 | ||
1df8552a | 7414 | /* Reset the controller with a PCI power-cycle or via doorbell */ |
6b6c1cd7 | 7415 | rc = hpsa_kdump_hard_reset_controller(pdev, board_id); |
4c2a8c40 | 7416 | |
1df8552a SC |
7417 | /* -ENOTSUPP here means we cannot reset the controller |
7418 | * but it's already (and still) up and running in | |
18867659 SC |
7419 | * "performant mode". Or, it might be 640x, which can't reset |
7420 | * due to concerns about shared bbwc between 6402/6404 pair. | |
1df8552a | 7421 | */ |
adf1b3a3 | 7422 | if (rc) |
132aa220 | 7423 | goto out_disable; |
4c2a8c40 SC |
7424 | |
7425 | /* Now try to get the controller to respond to a no-op */ | |
1ba66c9c | 7426 | dev_info(&pdev->dev, "Waiting for controller to respond to no-op\n"); |
4c2a8c40 SC |
7427 | for (i = 0; i < HPSA_POST_RESET_NOOP_RETRIES; i++) { |
7428 | if (hpsa_noop(pdev) == 0) | |
7429 | break; | |
7430 | else | |
7431 | dev_warn(&pdev->dev, "no-op failed%s\n", | |
7432 | (i < 11 ? "; re-trying" : "")); | |
7433 | } | |
132aa220 TH |
7434 | |
7435 | out_disable: | |
7436 | ||
7437 | pci_disable_device(pdev); | |
7438 | return rc; | |
4c2a8c40 SC |
7439 | } |
7440 | ||
1fb7c98a RE |
7441 | static void hpsa_free_cmd_pool(struct ctlr_info *h) |
7442 | { | |
7443 | kfree(h->cmd_pool_bits); | |
105a3dbc RE |
7444 | h->cmd_pool_bits = NULL; |
7445 | if (h->cmd_pool) { | |
1fb7c98a RE |
7446 | pci_free_consistent(h->pdev, |
7447 | h->nr_cmds * sizeof(struct CommandList), | |
7448 | h->cmd_pool, | |
7449 | h->cmd_pool_dhandle); | |
105a3dbc RE |
7450 | h->cmd_pool = NULL; |
7451 | h->cmd_pool_dhandle = 0; | |
7452 | } | |
7453 | if (h->errinfo_pool) { | |
1fb7c98a RE |
7454 | pci_free_consistent(h->pdev, |
7455 | h->nr_cmds * sizeof(struct ErrorInfo), | |
7456 | h->errinfo_pool, | |
7457 | h->errinfo_pool_dhandle); | |
105a3dbc RE |
7458 | h->errinfo_pool = NULL; |
7459 | h->errinfo_pool_dhandle = 0; | |
7460 | } | |
1fb7c98a RE |
7461 | } |
7462 | ||
d37ffbe4 | 7463 | static int hpsa_alloc_cmd_pool(struct ctlr_info *h) |
2e9d1b36 SC |
7464 | { |
7465 | h->cmd_pool_bits = kzalloc( | |
7466 | DIV_ROUND_UP(h->nr_cmds, BITS_PER_LONG) * | |
7467 | sizeof(unsigned long), GFP_KERNEL); | |
7468 | h->cmd_pool = pci_alloc_consistent(h->pdev, | |
7469 | h->nr_cmds * sizeof(*h->cmd_pool), | |
7470 | &(h->cmd_pool_dhandle)); | |
7471 | h->errinfo_pool = pci_alloc_consistent(h->pdev, | |
7472 | h->nr_cmds * sizeof(*h->errinfo_pool), | |
7473 | &(h->errinfo_pool_dhandle)); | |
7474 | if ((h->cmd_pool_bits == NULL) | |
7475 | || (h->cmd_pool == NULL) | |
7476 | || (h->errinfo_pool == NULL)) { | |
7477 | dev_err(&h->pdev->dev, "out of memory in %s", __func__); | |
2c143342 | 7478 | goto clean_up; |
2e9d1b36 | 7479 | } |
360c73bd | 7480 | hpsa_preinitialize_commands(h); |
2e9d1b36 | 7481 | return 0; |
2c143342 RE |
7482 | clean_up: |
7483 | hpsa_free_cmd_pool(h); | |
7484 | return -ENOMEM; | |
2e9d1b36 SC |
7485 | } |
7486 | ||
41b3cf08 SC |
7487 | static void hpsa_irq_affinity_hints(struct ctlr_info *h) |
7488 | { | |
ec429952 | 7489 | int i, cpu; |
41b3cf08 SC |
7490 | |
7491 | cpu = cpumask_first(cpu_online_mask); | |
7492 | for (i = 0; i < h->msix_vector; i++) { | |
ec429952 | 7493 | irq_set_affinity_hint(h->intr[i], get_cpu_mask(cpu)); |
41b3cf08 SC |
7494 | cpu = cpumask_next(cpu, cpu_online_mask); |
7495 | } | |
7496 | } | |
7497 | ||
ec501a18 RE |
7498 | /* clear affinity hints and free MSI-X, MSI, or legacy INTx vectors */ |
7499 | static void hpsa_free_irqs(struct ctlr_info *h) | |
7500 | { | |
7501 | int i; | |
7502 | ||
7503 | if (!h->msix_vector || h->intr_mode != PERF_MODE_INT) { | |
7504 | /* Single reply queue, only one irq to free */ | |
7505 | i = h->intr_mode; | |
7506 | irq_set_affinity_hint(h->intr[i], NULL); | |
7507 | free_irq(h->intr[i], &h->q[i]); | |
105a3dbc | 7508 | h->q[i] = 0; |
ec501a18 RE |
7509 | return; |
7510 | } | |
7511 | ||
7512 | for (i = 0; i < h->msix_vector; i++) { | |
7513 | irq_set_affinity_hint(h->intr[i], NULL); | |
7514 | free_irq(h->intr[i], &h->q[i]); | |
105a3dbc | 7515 | h->q[i] = 0; |
ec501a18 | 7516 | } |
a4e17fc1 RE |
7517 | for (; i < MAX_REPLY_QUEUES; i++) |
7518 | h->q[i] = 0; | |
ec501a18 RE |
7519 | } |
7520 | ||
9ee61794 RE |
7521 | /* returns 0 on success; cleans up and returns -Enn on error */ |
7522 | static int hpsa_request_irqs(struct ctlr_info *h, | |
0ae01a32 SC |
7523 | irqreturn_t (*msixhandler)(int, void *), |
7524 | irqreturn_t (*intxhandler)(int, void *)) | |
7525 | { | |
254f796b | 7526 | int rc, i; |
0ae01a32 | 7527 | |
254f796b MG |
7528 | /* |
7529 | * initialize h->q[x] = x so that interrupt handlers know which | |
7530 | * queue to process. | |
7531 | */ | |
7532 | for (i = 0; i < MAX_REPLY_QUEUES; i++) | |
7533 | h->q[i] = (u8) i; | |
7534 | ||
eee0f03a | 7535 | if (h->intr_mode == PERF_MODE_INT && h->msix_vector > 0) { |
254f796b | 7536 | /* If performant mode and MSI-X, use multiple reply queues */ |
a4e17fc1 | 7537 | for (i = 0; i < h->msix_vector; i++) { |
8b47004a | 7538 | sprintf(h->intrname[i], "%s-msix%d", h->devname, i); |
254f796b | 7539 | rc = request_irq(h->intr[i], msixhandler, |
8b47004a | 7540 | 0, h->intrname[i], |
254f796b | 7541 | &h->q[i]); |
a4e17fc1 RE |
7542 | if (rc) { |
7543 | int j; | |
7544 | ||
7545 | dev_err(&h->pdev->dev, | |
7546 | "failed to get irq %d for %s\n", | |
7547 | h->intr[i], h->devname); | |
7548 | for (j = 0; j < i; j++) { | |
7549 | free_irq(h->intr[j], &h->q[j]); | |
7550 | h->q[j] = 0; | |
7551 | } | |
7552 | for (; j < MAX_REPLY_QUEUES; j++) | |
7553 | h->q[j] = 0; | |
7554 | return rc; | |
7555 | } | |
7556 | } | |
41b3cf08 | 7557 | hpsa_irq_affinity_hints(h); |
254f796b MG |
7558 | } else { |
7559 | /* Use single reply pool */ | |
eee0f03a | 7560 | if (h->msix_vector > 0 || h->msi_vector) { |
8b47004a RE |
7561 | if (h->msix_vector) |
7562 | sprintf(h->intrname[h->intr_mode], | |
7563 | "%s-msix", h->devname); | |
7564 | else | |
7565 | sprintf(h->intrname[h->intr_mode], | |
7566 | "%s-msi", h->devname); | |
254f796b | 7567 | rc = request_irq(h->intr[h->intr_mode], |
8b47004a RE |
7568 | msixhandler, 0, |
7569 | h->intrname[h->intr_mode], | |
254f796b MG |
7570 | &h->q[h->intr_mode]); |
7571 | } else { | |
8b47004a RE |
7572 | sprintf(h->intrname[h->intr_mode], |
7573 | "%s-intx", h->devname); | |
254f796b | 7574 | rc = request_irq(h->intr[h->intr_mode], |
8b47004a RE |
7575 | intxhandler, IRQF_SHARED, |
7576 | h->intrname[h->intr_mode], | |
254f796b MG |
7577 | &h->q[h->intr_mode]); |
7578 | } | |
105a3dbc | 7579 | irq_set_affinity_hint(h->intr[h->intr_mode], NULL); |
254f796b | 7580 | } |
0ae01a32 | 7581 | if (rc) { |
195f2c65 | 7582 | dev_err(&h->pdev->dev, "failed to get irq %d for %s\n", |
0ae01a32 | 7583 | h->intr[h->intr_mode], h->devname); |
195f2c65 | 7584 | hpsa_free_irqs(h); |
0ae01a32 SC |
7585 | return -ENODEV; |
7586 | } | |
7587 | return 0; | |
7588 | } | |
7589 | ||
6f039790 | 7590 | static int hpsa_kdump_soft_reset(struct ctlr_info *h) |
64670ac8 | 7591 | { |
39c53f55 | 7592 | int rc; |
bf43caf3 | 7593 | hpsa_send_host_reset(h, RAID_CTLR_LUNID, HPSA_RESET_TYPE_CONTROLLER); |
64670ac8 SC |
7594 | |
7595 | dev_info(&h->pdev->dev, "Waiting for board to soft reset.\n"); | |
39c53f55 RE |
7596 | rc = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_NOT_READY); |
7597 | if (rc) { | |
64670ac8 | 7598 | dev_warn(&h->pdev->dev, "Soft reset had no effect.\n"); |
39c53f55 | 7599 | return rc; |
64670ac8 SC |
7600 | } |
7601 | ||
7602 | dev_info(&h->pdev->dev, "Board reset, awaiting READY status.\n"); | |
39c53f55 RE |
7603 | rc = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY); |
7604 | if (rc) { | |
64670ac8 SC |
7605 | dev_warn(&h->pdev->dev, "Board failed to become ready " |
7606 | "after soft reset.\n"); | |
39c53f55 | 7607 | return rc; |
64670ac8 SC |
7608 | } |
7609 | ||
7610 | return 0; | |
7611 | } | |
7612 | ||
072b0518 SC |
7613 | static void hpsa_free_reply_queues(struct ctlr_info *h) |
7614 | { | |
7615 | int i; | |
7616 | ||
7617 | for (i = 0; i < h->nreply_queues; i++) { | |
7618 | if (!h->reply_queue[i].head) | |
7619 | continue; | |
1fb7c98a RE |
7620 | pci_free_consistent(h->pdev, |
7621 | h->reply_queue_size, | |
7622 | h->reply_queue[i].head, | |
7623 | h->reply_queue[i].busaddr); | |
072b0518 SC |
7624 | h->reply_queue[i].head = NULL; |
7625 | h->reply_queue[i].busaddr = 0; | |
7626 | } | |
105a3dbc | 7627 | h->reply_queue_size = 0; |
072b0518 SC |
7628 | } |
7629 | ||
0097f0f4 SC |
7630 | static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info *h) |
7631 | { | |
105a3dbc RE |
7632 | hpsa_free_performant_mode(h); /* init_one 7 */ |
7633 | hpsa_free_sg_chain_blocks(h); /* init_one 6 */ | |
7634 | hpsa_free_cmd_pool(h); /* init_one 5 */ | |
7635 | hpsa_free_irqs(h); /* init_one 4 */ | |
2946e82b RE |
7636 | scsi_host_put(h->scsi_host); /* init_one 3 */ |
7637 | h->scsi_host = NULL; /* init_one 3 */ | |
7638 | hpsa_free_pci_init(h); /* init_one 2_5 */ | |
9ecd953a RE |
7639 | free_percpu(h->lockup_detected); /* init_one 2 */ |
7640 | h->lockup_detected = NULL; /* init_one 2 */ | |
7641 | if (h->resubmit_wq) { | |
7642 | destroy_workqueue(h->resubmit_wq); /* init_one 1 */ | |
7643 | h->resubmit_wq = NULL; | |
7644 | } | |
7645 | if (h->rescan_ctlr_wq) { | |
7646 | destroy_workqueue(h->rescan_ctlr_wq); | |
7647 | h->rescan_ctlr_wq = NULL; | |
7648 | } | |
105a3dbc | 7649 | kfree(h); /* init_one 1 */ |
64670ac8 SC |
7650 | } |
7651 | ||
a0c12413 | 7652 | /* Called when controller lockup detected. */ |
f2405db8 | 7653 | static void fail_all_outstanding_cmds(struct ctlr_info *h) |
a0c12413 | 7654 | { |
281a7fd0 WS |
7655 | int i, refcount; |
7656 | struct CommandList *c; | |
25163bd5 | 7657 | int failcount = 0; |
a0c12413 | 7658 | |
080ef1cc | 7659 | flush_workqueue(h->resubmit_wq); /* ensure all cmds are fully built */ |
f2405db8 | 7660 | for (i = 0; i < h->nr_cmds; i++) { |
f2405db8 | 7661 | c = h->cmd_pool + i; |
281a7fd0 WS |
7662 | refcount = atomic_inc_return(&c->refcount); |
7663 | if (refcount > 1) { | |
25163bd5 | 7664 | c->err_info->CommandStatus = CMD_CTLR_LOCKUP; |
281a7fd0 | 7665 | finish_cmd(c); |
433b5f4d | 7666 | atomic_dec(&h->commands_outstanding); |
25163bd5 | 7667 | failcount++; |
281a7fd0 WS |
7668 | } |
7669 | cmd_free(h, c); | |
a0c12413 | 7670 | } |
25163bd5 WS |
7671 | dev_warn(&h->pdev->dev, |
7672 | "failed %d commands in fail_all\n", failcount); | |
a0c12413 SC |
7673 | } |
7674 | ||
094963da SC |
7675 | static void set_lockup_detected_for_all_cpus(struct ctlr_info *h, u32 value) |
7676 | { | |
c8ed0010 | 7677 | int cpu; |
094963da | 7678 | |
c8ed0010 | 7679 | for_each_online_cpu(cpu) { |
094963da SC |
7680 | u32 *lockup_detected; |
7681 | lockup_detected = per_cpu_ptr(h->lockup_detected, cpu); | |
7682 | *lockup_detected = value; | |
094963da SC |
7683 | } |
7684 | wmb(); /* be sure the per-cpu variables are out to memory */ | |
7685 | } | |
7686 | ||
a0c12413 SC |
7687 | static void controller_lockup_detected(struct ctlr_info *h) |
7688 | { | |
7689 | unsigned long flags; | |
094963da | 7690 | u32 lockup_detected; |
a0c12413 | 7691 | |
a0c12413 SC |
7692 | h->access.set_intr_mask(h, HPSA_INTR_OFF); |
7693 | spin_lock_irqsave(&h->lock, flags); | |
094963da SC |
7694 | lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET); |
7695 | if (!lockup_detected) { | |
7696 | /* no heartbeat, but controller gave us a zero. */ | |
7697 | dev_warn(&h->pdev->dev, | |
25163bd5 WS |
7698 | "lockup detected after %d but scratchpad register is zero\n", |
7699 | h->heartbeat_sample_interval / HZ); | |
094963da SC |
7700 | lockup_detected = 0xffffffff; |
7701 | } | |
7702 | set_lockup_detected_for_all_cpus(h, lockup_detected); | |
a0c12413 | 7703 | spin_unlock_irqrestore(&h->lock, flags); |
25163bd5 WS |
7704 | dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x after %d\n", |
7705 | lockup_detected, h->heartbeat_sample_interval / HZ); | |
a0c12413 | 7706 | pci_disable_device(h->pdev); |
f2405db8 | 7707 | fail_all_outstanding_cmds(h); |
a0c12413 SC |
7708 | } |
7709 | ||
25163bd5 | 7710 | static int detect_controller_lockup(struct ctlr_info *h) |
a0c12413 SC |
7711 | { |
7712 | u64 now; | |
7713 | u32 heartbeat; | |
7714 | unsigned long flags; | |
7715 | ||
a0c12413 SC |
7716 | now = get_jiffies_64(); |
7717 | /* If we've received an interrupt recently, we're ok. */ | |
7718 | if (time_after64(h->last_intr_timestamp + | |
e85c5974 | 7719 | (h->heartbeat_sample_interval), now)) |
25163bd5 | 7720 | return false; |
a0c12413 SC |
7721 | |
7722 | /* | |
7723 | * If we've already checked the heartbeat recently, we're ok. | |
7724 | * This could happen if someone sends us a signal. We | |
7725 | * otherwise don't care about signals in this thread. | |
7726 | */ | |
7727 | if (time_after64(h->last_heartbeat_timestamp + | |
e85c5974 | 7728 | (h->heartbeat_sample_interval), now)) |
25163bd5 | 7729 | return false; |
a0c12413 SC |
7730 | |
7731 | /* If heartbeat has not changed since we last looked, we're not ok. */ | |
7732 | spin_lock_irqsave(&h->lock, flags); | |
7733 | heartbeat = readl(&h->cfgtable->HeartBeat); | |
7734 | spin_unlock_irqrestore(&h->lock, flags); | |
7735 | if (h->last_heartbeat == heartbeat) { | |
7736 | controller_lockup_detected(h); | |
25163bd5 | 7737 | return true; |
a0c12413 SC |
7738 | } |
7739 | ||
7740 | /* We're ok. */ | |
7741 | h->last_heartbeat = heartbeat; | |
7742 | h->last_heartbeat_timestamp = now; | |
25163bd5 | 7743 | return false; |
a0c12413 SC |
7744 | } |
7745 | ||
9846590e | 7746 | static void hpsa_ack_ctlr_events(struct ctlr_info *h) |
76438d08 SC |
7747 | { |
7748 | int i; | |
7749 | char *event_type; | |
7750 | ||
e4aa3e6a SC |
7751 | if (!(h->fw_support & MISC_FW_EVENT_NOTIFY)) |
7752 | return; | |
7753 | ||
76438d08 | 7754 | /* Ask the controller to clear the events we're handling. */ |
1f7cee8c SC |
7755 | if ((h->transMethod & (CFGTBL_Trans_io_accel1 |
7756 | | CFGTBL_Trans_io_accel2)) && | |
76438d08 SC |
7757 | (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE || |
7758 | h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE)) { | |
7759 | ||
7760 | if (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE) | |
7761 | event_type = "state change"; | |
7762 | if (h->events & HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE) | |
7763 | event_type = "configuration change"; | |
7764 | /* Stop sending new RAID offload reqs via the IO accelerator */ | |
7765 | scsi_block_requests(h->scsi_host); | |
7766 | for (i = 0; i < h->ndevices; i++) | |
7767 | h->dev[i]->offload_enabled = 0; | |
23100dd9 | 7768 | hpsa_drain_accel_commands(h); |
76438d08 SC |
7769 | /* Set 'accelerator path config change' bit */ |
7770 | dev_warn(&h->pdev->dev, | |
7771 | "Acknowledging event: 0x%08x (HP SSD Smart Path %s)\n", | |
7772 | h->events, event_type); | |
7773 | writel(h->events, &(h->cfgtable->clear_event_notify)); | |
7774 | /* Set the "clear event notify field update" bit 6 */ | |
7775 | writel(DOORBELL_CLEAR_EVENTS, h->vaddr + SA5_DOORBELL); | |
7776 | /* Wait until ctlr clears 'clear event notify field', bit 6 */ | |
7777 | hpsa_wait_for_clear_event_notify_ack(h); | |
7778 | scsi_unblock_requests(h->scsi_host); | |
7779 | } else { | |
7780 | /* Acknowledge controller notification events. */ | |
7781 | writel(h->events, &(h->cfgtable->clear_event_notify)); | |
7782 | writel(DOORBELL_CLEAR_EVENTS, h->vaddr + SA5_DOORBELL); | |
7783 | hpsa_wait_for_clear_event_notify_ack(h); | |
7784 | #if 0 | |
7785 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); | |
7786 | hpsa_wait_for_mode_change_ack(h); | |
7787 | #endif | |
7788 | } | |
9846590e | 7789 | return; |
76438d08 SC |
7790 | } |
7791 | ||
7792 | /* Check a register on the controller to see if there are configuration | |
7793 | * changes (added/changed/removed logical drives, etc.) which mean that | |
e863d68e ST |
7794 | * we should rescan the controller for devices. |
7795 | * Also check flag for driver-initiated rescan. | |
76438d08 | 7796 | */ |
9846590e | 7797 | static int hpsa_ctlr_needs_rescan(struct ctlr_info *h) |
76438d08 SC |
7798 | { |
7799 | if (!(h->fw_support & MISC_FW_EVENT_NOTIFY)) | |
9846590e | 7800 | return 0; |
76438d08 SC |
7801 | |
7802 | h->events = readl(&(h->cfgtable->event_notify)); | |
9846590e SC |
7803 | return h->events & RESCAN_REQUIRED_EVENT_BITS; |
7804 | } | |
76438d08 | 7805 | |
9846590e SC |
7806 | /* |
7807 | * Check if any of the offline devices have become ready | |
7808 | */ | |
7809 | static int hpsa_offline_devices_ready(struct ctlr_info *h) | |
7810 | { | |
7811 | unsigned long flags; | |
7812 | struct offline_device_entry *d; | |
7813 | struct list_head *this, *tmp; | |
7814 | ||
7815 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
7816 | list_for_each_safe(this, tmp, &h->offline_device_list) { | |
7817 | d = list_entry(this, struct offline_device_entry, | |
7818 | offline_list); | |
7819 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
d1fea47c SC |
7820 | if (!hpsa_volume_offline(h, d->scsi3addr)) { |
7821 | spin_lock_irqsave(&h->offline_device_lock, flags); | |
7822 | list_del(&d->offline_list); | |
7823 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
9846590e | 7824 | return 1; |
d1fea47c | 7825 | } |
9846590e SC |
7826 | spin_lock_irqsave(&h->offline_device_lock, flags); |
7827 | } | |
7828 | spin_unlock_irqrestore(&h->offline_device_lock, flags); | |
7829 | return 0; | |
76438d08 SC |
7830 | } |
7831 | ||
6636e7f4 | 7832 | static void hpsa_rescan_ctlr_worker(struct work_struct *work) |
a0c12413 SC |
7833 | { |
7834 | unsigned long flags; | |
8a98db73 | 7835 | struct ctlr_info *h = container_of(to_delayed_work(work), |
6636e7f4 DB |
7836 | struct ctlr_info, rescan_ctlr_work); |
7837 | ||
7838 | ||
7839 | if (h->remove_in_progress) | |
8a98db73 | 7840 | return; |
9846590e SC |
7841 | |
7842 | if (hpsa_ctlr_needs_rescan(h) || hpsa_offline_devices_ready(h)) { | |
7843 | scsi_host_get(h->scsi_host); | |
9846590e SC |
7844 | hpsa_ack_ctlr_events(h); |
7845 | hpsa_scan_start(h->scsi_host); | |
7846 | scsi_host_put(h->scsi_host); | |
7847 | } | |
8a98db73 | 7848 | spin_lock_irqsave(&h->lock, flags); |
6636e7f4 DB |
7849 | if (!h->remove_in_progress) |
7850 | queue_delayed_work(h->rescan_ctlr_wq, &h->rescan_ctlr_work, | |
7851 | h->heartbeat_sample_interval); | |
7852 | spin_unlock_irqrestore(&h->lock, flags); | |
7853 | } | |
7854 | ||
7855 | static void hpsa_monitor_ctlr_worker(struct work_struct *work) | |
7856 | { | |
7857 | unsigned long flags; | |
7858 | struct ctlr_info *h = container_of(to_delayed_work(work), | |
7859 | struct ctlr_info, monitor_ctlr_work); | |
7860 | ||
7861 | detect_controller_lockup(h); | |
7862 | if (lockup_detected(h)) | |
a0c12413 | 7863 | return; |
6636e7f4 DB |
7864 | |
7865 | spin_lock_irqsave(&h->lock, flags); | |
7866 | if (!h->remove_in_progress) | |
7867 | schedule_delayed_work(&h->monitor_ctlr_work, | |
8a98db73 SC |
7868 | h->heartbeat_sample_interval); |
7869 | spin_unlock_irqrestore(&h->lock, flags); | |
a0c12413 SC |
7870 | } |
7871 | ||
6636e7f4 DB |
7872 | static struct workqueue_struct *hpsa_create_controller_wq(struct ctlr_info *h, |
7873 | char *name) | |
7874 | { | |
7875 | struct workqueue_struct *wq = NULL; | |
6636e7f4 | 7876 | |
397ea9cb | 7877 | wq = alloc_ordered_workqueue("%s_%d_hpsa", 0, name, h->ctlr); |
6636e7f4 DB |
7878 | if (!wq) |
7879 | dev_err(&h->pdev->dev, "failed to create %s workqueue\n", name); | |
7880 | ||
7881 | return wq; | |
7882 | } | |
7883 | ||
6f039790 | 7884 | static int hpsa_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
edd16368 | 7885 | { |
4c2a8c40 | 7886 | int dac, rc; |
edd16368 | 7887 | struct ctlr_info *h; |
64670ac8 SC |
7888 | int try_soft_reset = 0; |
7889 | unsigned long flags; | |
6b6c1cd7 | 7890 | u32 board_id; |
edd16368 SC |
7891 | |
7892 | if (number_of_controllers == 0) | |
7893 | printk(KERN_INFO DRIVER_NAME "\n"); | |
edd16368 | 7894 | |
6b6c1cd7 TH |
7895 | rc = hpsa_lookup_board_id(pdev, &board_id); |
7896 | if (rc < 0) { | |
7897 | dev_warn(&pdev->dev, "Board ID not found\n"); | |
7898 | return rc; | |
7899 | } | |
7900 | ||
7901 | rc = hpsa_init_reset_devices(pdev, board_id); | |
64670ac8 SC |
7902 | if (rc) { |
7903 | if (rc != -ENOTSUPP) | |
7904 | return rc; | |
7905 | /* If the reset fails in a particular way (it has no way to do | |
7906 | * a proper hard reset, so returns -ENOTSUPP) we can try to do | |
7907 | * a soft reset once we get the controller configured up to the | |
7908 | * point that it can accept a command. | |
7909 | */ | |
7910 | try_soft_reset = 1; | |
7911 | rc = 0; | |
7912 | } | |
7913 | ||
7914 | reinit_after_soft_reset: | |
edd16368 | 7915 | |
303932fd DB |
7916 | /* Command structures must be aligned on a 32-byte boundary because |
7917 | * the 5 lower bits of the address are used by the hardware. and by | |
7918 | * the driver. See comments in hpsa.h for more info. | |
7919 | */ | |
303932fd | 7920 | BUILD_BUG_ON(sizeof(struct CommandList) % COMMANDLIST_ALIGNMENT); |
edd16368 | 7921 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
105a3dbc RE |
7922 | if (!h) { |
7923 | dev_err(&pdev->dev, "Failed to allocate controller head\n"); | |
ecd9aad4 | 7924 | return -ENOMEM; |
105a3dbc | 7925 | } |
edd16368 | 7926 | |
55c06c71 | 7927 | h->pdev = pdev; |
105a3dbc | 7928 | |
a9a3a273 | 7929 | h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT; |
9846590e | 7930 | INIT_LIST_HEAD(&h->offline_device_list); |
6eaf46fd | 7931 | spin_lock_init(&h->lock); |
9846590e | 7932 | spin_lock_init(&h->offline_device_lock); |
6eaf46fd | 7933 | spin_lock_init(&h->scan_lock); |
34f0c627 | 7934 | atomic_set(&h->passthru_cmds_avail, HPSA_MAX_CONCURRENT_PASSTHRUS); |
9b5c48c2 | 7935 | atomic_set(&h->abort_cmds_available, HPSA_CMDS_RESERVED_FOR_ABORTS); |
094963da SC |
7936 | |
7937 | /* Allocate and clear per-cpu variable lockup_detected */ | |
7938 | h->lockup_detected = alloc_percpu(u32); | |
2a5ac326 | 7939 | if (!h->lockup_detected) { |
105a3dbc | 7940 | dev_err(&h->pdev->dev, "Failed to allocate lockup detector\n"); |
2a5ac326 | 7941 | rc = -ENOMEM; |
2efa5929 | 7942 | goto clean1; /* aer/h */ |
2a5ac326 | 7943 | } |
094963da SC |
7944 | set_lockup_detected_for_all_cpus(h, 0); |
7945 | ||
55c06c71 | 7946 | rc = hpsa_pci_init(h); |
105a3dbc | 7947 | if (rc) |
2946e82b RE |
7948 | goto clean2; /* lu, aer/h */ |
7949 | ||
7950 | /* relies on h-> settings made by hpsa_pci_init, including | |
7951 | * interrupt_mode h->intr */ | |
7952 | rc = hpsa_scsi_host_alloc(h); | |
7953 | if (rc) | |
7954 | goto clean2_5; /* pci, lu, aer/h */ | |
edd16368 | 7955 | |
2946e82b | 7956 | sprintf(h->devname, HPSA "%d", h->scsi_host->host_no); |
edd16368 SC |
7957 | h->ctlr = number_of_controllers; |
7958 | number_of_controllers++; | |
edd16368 SC |
7959 | |
7960 | /* configure PCI DMA stuff */ | |
ecd9aad4 SC |
7961 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
7962 | if (rc == 0) { | |
edd16368 | 7963 | dac = 1; |
ecd9aad4 SC |
7964 | } else { |
7965 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
7966 | if (rc == 0) { | |
7967 | dac = 0; | |
7968 | } else { | |
7969 | dev_err(&pdev->dev, "no suitable DMA available\n"); | |
2946e82b | 7970 | goto clean3; /* shost, pci, lu, aer/h */ |
ecd9aad4 | 7971 | } |
edd16368 SC |
7972 | } |
7973 | ||
7974 | /* make sure the board interrupts are off */ | |
7975 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
10f66018 | 7976 | |
105a3dbc RE |
7977 | rc = hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx); |
7978 | if (rc) | |
2946e82b | 7979 | goto clean3; /* shost, pci, lu, aer/h */ |
d37ffbe4 | 7980 | rc = hpsa_alloc_cmd_pool(h); |
8947fd10 | 7981 | if (rc) |
2946e82b | 7982 | goto clean4; /* irq, shost, pci, lu, aer/h */ |
105a3dbc RE |
7983 | rc = hpsa_alloc_sg_chain_blocks(h); |
7984 | if (rc) | |
2946e82b | 7985 | goto clean5; /* cmd, irq, shost, pci, lu, aer/h */ |
a08a8471 | 7986 | init_waitqueue_head(&h->scan_wait_queue); |
9b5c48c2 | 7987 | init_waitqueue_head(&h->abort_cmd_wait_queue); |
d604f533 WS |
7988 | init_waitqueue_head(&h->event_sync_wait_queue); |
7989 | mutex_init(&h->reset_mutex); | |
a08a8471 | 7990 | h->scan_finished = 1; /* no scan currently in progress */ |
edd16368 SC |
7991 | |
7992 | pci_set_drvdata(pdev, h); | |
9a41338e | 7993 | h->ndevices = 0; |
316b221a | 7994 | h->hba_mode_enabled = 0; |
2946e82b | 7995 | |
9a41338e | 7996 | spin_lock_init(&h->devlock); |
105a3dbc RE |
7997 | rc = hpsa_put_ctlr_into_performant_mode(h); |
7998 | if (rc) | |
2946e82b RE |
7999 | goto clean6; /* sg, cmd, irq, shost, pci, lu, aer/h */ |
8000 | ||
8001 | /* hook into SCSI subsystem */ | |
8002 | rc = hpsa_scsi_add_host(h); | |
8003 | if (rc) | |
8004 | goto clean7; /* perf, sg, cmd, irq, shost, pci, lu, aer/h */ | |
2efa5929 RE |
8005 | |
8006 | /* create the resubmit workqueue */ | |
8007 | h->rescan_ctlr_wq = hpsa_create_controller_wq(h, "rescan"); | |
8008 | if (!h->rescan_ctlr_wq) { | |
8009 | rc = -ENOMEM; | |
8010 | goto clean7; | |
8011 | } | |
8012 | ||
8013 | h->resubmit_wq = hpsa_create_controller_wq(h, "resubmit"); | |
8014 | if (!h->resubmit_wq) { | |
8015 | rc = -ENOMEM; | |
8016 | goto clean7; /* aer/h */ | |
8017 | } | |
64670ac8 | 8018 | |
105a3dbc RE |
8019 | /* |
8020 | * At this point, the controller is ready to take commands. | |
64670ac8 SC |
8021 | * Now, if reset_devices and the hard reset didn't work, try |
8022 | * the soft reset and see if that works. | |
8023 | */ | |
8024 | if (try_soft_reset) { | |
8025 | ||
8026 | /* This is kind of gross. We may or may not get a completion | |
8027 | * from the soft reset command, and if we do, then the value | |
8028 | * from the fifo may or may not be valid. So, we wait 10 secs | |
8029 | * after the reset throwing away any completions we get during | |
8030 | * that time. Unregister the interrupt handler and register | |
8031 | * fake ones to scoop up any residual completions. | |
8032 | */ | |
8033 | spin_lock_irqsave(&h->lock, flags); | |
8034 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
8035 | spin_unlock_irqrestore(&h->lock, flags); | |
ec501a18 | 8036 | hpsa_free_irqs(h); |
9ee61794 | 8037 | rc = hpsa_request_irqs(h, hpsa_msix_discard_completions, |
64670ac8 SC |
8038 | hpsa_intx_discard_completions); |
8039 | if (rc) { | |
9ee61794 RE |
8040 | dev_warn(&h->pdev->dev, |
8041 | "Failed to request_irq after soft reset.\n"); | |
d498757c | 8042 | /* |
b2ef480c RE |
8043 | * cannot goto clean7 or free_irqs will be called |
8044 | * again. Instead, do its work | |
8045 | */ | |
8046 | hpsa_free_performant_mode(h); /* clean7 */ | |
8047 | hpsa_free_sg_chain_blocks(h); /* clean6 */ | |
8048 | hpsa_free_cmd_pool(h); /* clean5 */ | |
8049 | /* | |
8050 | * skip hpsa_free_irqs(h) clean4 since that | |
8051 | * was just called before request_irqs failed | |
d498757c RE |
8052 | */ |
8053 | goto clean3; | |
64670ac8 SC |
8054 | } |
8055 | ||
8056 | rc = hpsa_kdump_soft_reset(h); | |
8057 | if (rc) | |
8058 | /* Neither hard nor soft reset worked, we're hosed. */ | |
2946e82b | 8059 | goto clean9; |
64670ac8 SC |
8060 | |
8061 | dev_info(&h->pdev->dev, "Board READY.\n"); | |
8062 | dev_info(&h->pdev->dev, | |
8063 | "Waiting for stale completions to drain.\n"); | |
8064 | h->access.set_intr_mask(h, HPSA_INTR_ON); | |
8065 | msleep(10000); | |
8066 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
8067 | ||
8068 | rc = controller_reset_failed(h->cfgtable); | |
8069 | if (rc) | |
8070 | dev_info(&h->pdev->dev, | |
8071 | "Soft reset appears to have failed.\n"); | |
8072 | ||
8073 | /* since the controller's reset, we have to go back and re-init | |
8074 | * everything. Easiest to just forget what we've done and do it | |
8075 | * all over again. | |
8076 | */ | |
8077 | hpsa_undo_allocations_after_kdump_soft_reset(h); | |
8078 | try_soft_reset = 0; | |
8079 | if (rc) | |
b2ef480c | 8080 | /* don't goto clean, we already unallocated */ |
64670ac8 SC |
8081 | return -ENODEV; |
8082 | ||
8083 | goto reinit_after_soft_reset; | |
8084 | } | |
edd16368 | 8085 | |
105a3dbc RE |
8086 | /* Enable Accelerated IO path at driver layer */ |
8087 | h->acciopath_status = 1; | |
da0697bd | 8088 | |
e863d68e | 8089 | |
edd16368 SC |
8090 | /* Turn the interrupts on so we can service requests */ |
8091 | h->access.set_intr_mask(h, HPSA_INTR_ON); | |
8092 | ||
339b2b14 | 8093 | hpsa_hba_inquiry(h); |
8a98db73 SC |
8094 | |
8095 | /* Monitor the controller for firmware lockups */ | |
8096 | h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL; | |
8097 | INIT_DELAYED_WORK(&h->monitor_ctlr_work, hpsa_monitor_ctlr_worker); | |
8098 | schedule_delayed_work(&h->monitor_ctlr_work, | |
8099 | h->heartbeat_sample_interval); | |
6636e7f4 DB |
8100 | INIT_DELAYED_WORK(&h->rescan_ctlr_work, hpsa_rescan_ctlr_worker); |
8101 | queue_delayed_work(h->rescan_ctlr_wq, &h->rescan_ctlr_work, | |
8102 | h->heartbeat_sample_interval); | |
88bf6d62 | 8103 | return 0; |
edd16368 | 8104 | |
2946e82b | 8105 | clean9: /* wq, sh, perf, sg, cmd, irq, shost, pci, lu, aer/h */ |
105a3dbc | 8106 | kfree(h->hba_inquiry_data); |
2946e82b | 8107 | clean7: /* perf, sg, cmd, irq, shost, pci, lu, aer/h */ |
105a3dbc RE |
8108 | hpsa_free_performant_mode(h); |
8109 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
8110 | clean6: /* sg, cmd, irq, pci, lockup, wq/aer/h */ | |
33a2ffce | 8111 | hpsa_free_sg_chain_blocks(h); |
2946e82b | 8112 | clean5: /* cmd, irq, shost, pci, lu, aer/h */ |
2e9d1b36 | 8113 | hpsa_free_cmd_pool(h); |
2946e82b | 8114 | clean4: /* irq, shost, pci, lu, aer/h */ |
ec501a18 | 8115 | hpsa_free_irqs(h); |
2946e82b RE |
8116 | clean3: /* shost, pci, lu, aer/h */ |
8117 | scsi_host_put(h->scsi_host); | |
8118 | h->scsi_host = NULL; | |
8119 | clean2_5: /* pci, lu, aer/h */ | |
195f2c65 | 8120 | hpsa_free_pci_init(h); |
2946e82b | 8121 | clean2: /* lu, aer/h */ |
105a3dbc RE |
8122 | if (h->lockup_detected) { |
8123 | free_percpu(h->lockup_detected); | |
8124 | h->lockup_detected = NULL; | |
8125 | } | |
8126 | clean1: /* wq/aer/h */ | |
8127 | if (h->resubmit_wq) { | |
080ef1cc | 8128 | destroy_workqueue(h->resubmit_wq); |
105a3dbc RE |
8129 | h->resubmit_wq = NULL; |
8130 | } | |
8131 | if (h->rescan_ctlr_wq) { | |
6636e7f4 | 8132 | destroy_workqueue(h->rescan_ctlr_wq); |
105a3dbc RE |
8133 | h->rescan_ctlr_wq = NULL; |
8134 | } | |
edd16368 | 8135 | kfree(h); |
ecd9aad4 | 8136 | return rc; |
edd16368 SC |
8137 | } |
8138 | ||
8139 | static void hpsa_flush_cache(struct ctlr_info *h) | |
8140 | { | |
8141 | char *flush_buf; | |
8142 | struct CommandList *c; | |
25163bd5 | 8143 | int rc; |
702890e3 | 8144 | |
094963da | 8145 | if (unlikely(lockup_detected(h))) |
702890e3 | 8146 | return; |
edd16368 SC |
8147 | flush_buf = kzalloc(4, GFP_KERNEL); |
8148 | if (!flush_buf) | |
8149 | return; | |
8150 | ||
45fcb86e | 8151 | c = cmd_alloc(h); |
bf43caf3 | 8152 | |
a2dac136 SC |
8153 | if (fill_cmd(c, HPSA_CACHE_FLUSH, h, flush_buf, 4, 0, |
8154 | RAID_CTLR_LUNID, TYPE_CMD)) { | |
8155 | goto out; | |
8156 | } | |
25163bd5 WS |
8157 | rc = hpsa_scsi_do_simple_cmd_with_retry(h, c, |
8158 | PCI_DMA_TODEVICE, NO_TIMEOUT); | |
8159 | if (rc) | |
8160 | goto out; | |
edd16368 | 8161 | if (c->err_info->CommandStatus != 0) |
a2dac136 | 8162 | out: |
edd16368 SC |
8163 | dev_warn(&h->pdev->dev, |
8164 | "error flushing cache on controller\n"); | |
45fcb86e | 8165 | cmd_free(h, c); |
edd16368 SC |
8166 | kfree(flush_buf); |
8167 | } | |
8168 | ||
8169 | static void hpsa_shutdown(struct pci_dev *pdev) | |
8170 | { | |
8171 | struct ctlr_info *h; | |
8172 | ||
8173 | h = pci_get_drvdata(pdev); | |
8174 | /* Turn board interrupts off and send the flush cache command | |
8175 | * sendcmd will turn off interrupt, and send the flush... | |
8176 | * To write all data in the battery backed cache to disks | |
8177 | */ | |
8178 | hpsa_flush_cache(h); | |
8179 | h->access.set_intr_mask(h, HPSA_INTR_OFF); | |
105a3dbc | 8180 | hpsa_free_irqs(h); /* init_one 4 */ |
cc64c817 | 8181 | hpsa_disable_interrupt_mode(h); /* pci_init 2 */ |
edd16368 SC |
8182 | } |
8183 | ||
6f039790 | 8184 | static void hpsa_free_device_info(struct ctlr_info *h) |
55e14e76 SC |
8185 | { |
8186 | int i; | |
8187 | ||
105a3dbc | 8188 | for (i = 0; i < h->ndevices; i++) { |
55e14e76 | 8189 | kfree(h->dev[i]); |
105a3dbc RE |
8190 | h->dev[i] = NULL; |
8191 | } | |
55e14e76 SC |
8192 | } |
8193 | ||
6f039790 | 8194 | static void hpsa_remove_one(struct pci_dev *pdev) |
edd16368 SC |
8195 | { |
8196 | struct ctlr_info *h; | |
8a98db73 | 8197 | unsigned long flags; |
edd16368 SC |
8198 | |
8199 | if (pci_get_drvdata(pdev) == NULL) { | |
a0c12413 | 8200 | dev_err(&pdev->dev, "unable to remove device\n"); |
edd16368 SC |
8201 | return; |
8202 | } | |
8203 | h = pci_get_drvdata(pdev); | |
8a98db73 SC |
8204 | |
8205 | /* Get rid of any controller monitoring work items */ | |
8206 | spin_lock_irqsave(&h->lock, flags); | |
8207 | h->remove_in_progress = 1; | |
8a98db73 | 8208 | spin_unlock_irqrestore(&h->lock, flags); |
6636e7f4 DB |
8209 | cancel_delayed_work_sync(&h->monitor_ctlr_work); |
8210 | cancel_delayed_work_sync(&h->rescan_ctlr_work); | |
8211 | destroy_workqueue(h->rescan_ctlr_wq); | |
8212 | destroy_workqueue(h->resubmit_wq); | |
cc64c817 | 8213 | |
105a3dbc | 8214 | /* includes hpsa_free_irqs - init_one 4 */ |
195f2c65 | 8215 | /* includes hpsa_disable_interrupt_mode - pci_init 2 */ |
edd16368 | 8216 | hpsa_shutdown(pdev); |
cc64c817 | 8217 | |
105a3dbc RE |
8218 | hpsa_free_device_info(h); /* scan */ |
8219 | ||
2946e82b RE |
8220 | kfree(h->hba_inquiry_data); /* init_one 10 */ |
8221 | h->hba_inquiry_data = NULL; /* init_one 10 */ | |
8222 | if (h->scsi_host) | |
8223 | scsi_remove_host(h->scsi_host); /* init_one 8 */ | |
8224 | hpsa_free_ioaccel2_sg_chain_blocks(h); | |
105a3dbc RE |
8225 | hpsa_free_performant_mode(h); /* init_one 7 */ |
8226 | hpsa_free_sg_chain_blocks(h); /* init_one 6 */ | |
8227 | hpsa_free_cmd_pool(h); /* init_one 5 */ | |
8228 | ||
8229 | /* hpsa_free_irqs already called via hpsa_shutdown init_one 4 */ | |
195f2c65 | 8230 | |
2946e82b RE |
8231 | scsi_host_put(h->scsi_host); /* init_one 3 */ |
8232 | h->scsi_host = NULL; /* init_one 3 */ | |
8233 | ||
195f2c65 | 8234 | /* includes hpsa_disable_interrupt_mode - pci_init 2 */ |
2946e82b | 8235 | hpsa_free_pci_init(h); /* init_one 2.5 */ |
195f2c65 | 8236 | |
105a3dbc RE |
8237 | free_percpu(h->lockup_detected); /* init_one 2 */ |
8238 | h->lockup_detected = NULL; /* init_one 2 */ | |
8239 | /* (void) pci_disable_pcie_error_reporting(pdev); */ /* init_one 1 */ | |
8240 | kfree(h); /* init_one 1 */ | |
edd16368 SC |
8241 | } |
8242 | ||
8243 | static int hpsa_suspend(__attribute__((unused)) struct pci_dev *pdev, | |
8244 | __attribute__((unused)) pm_message_t state) | |
8245 | { | |
8246 | return -ENOSYS; | |
8247 | } | |
8248 | ||
8249 | static int hpsa_resume(__attribute__((unused)) struct pci_dev *pdev) | |
8250 | { | |
8251 | return -ENOSYS; | |
8252 | } | |
8253 | ||
8254 | static struct pci_driver hpsa_pci_driver = { | |
f79cfec6 | 8255 | .name = HPSA, |
edd16368 | 8256 | .probe = hpsa_init_one, |
6f039790 | 8257 | .remove = hpsa_remove_one, |
edd16368 SC |
8258 | .id_table = hpsa_pci_device_id, /* id_table */ |
8259 | .shutdown = hpsa_shutdown, | |
8260 | .suspend = hpsa_suspend, | |
8261 | .resume = hpsa_resume, | |
8262 | }; | |
8263 | ||
303932fd DB |
8264 | /* Fill in bucket_map[], given nsgs (the max number of |
8265 | * scatter gather elements supported) and bucket[], | |
8266 | * which is an array of 8 integers. The bucket[] array | |
8267 | * contains 8 different DMA transfer sizes (in 16 | |
8268 | * byte increments) which the controller uses to fetch | |
8269 | * commands. This function fills in bucket_map[], which | |
8270 | * maps a given number of scatter gather elements to one of | |
8271 | * the 8 DMA transfer sizes. The point of it is to allow the | |
8272 | * controller to only do as much DMA as needed to fetch the | |
8273 | * command, with the DMA transfer size encoded in the lower | |
8274 | * bits of the command address. | |
8275 | */ | |
8276 | static void calc_bucket_map(int bucket[], int num_buckets, | |
2b08b3e9 | 8277 | int nsgs, int min_blocks, u32 *bucket_map) |
303932fd DB |
8278 | { |
8279 | int i, j, b, size; | |
8280 | ||
303932fd DB |
8281 | /* Note, bucket_map must have nsgs+1 entries. */ |
8282 | for (i = 0; i <= nsgs; i++) { | |
8283 | /* Compute size of a command with i SG entries */ | |
e1f7de0c | 8284 | size = i + min_blocks; |
303932fd DB |
8285 | b = num_buckets; /* Assume the biggest bucket */ |
8286 | /* Find the bucket that is just big enough */ | |
e1f7de0c | 8287 | for (j = 0; j < num_buckets; j++) { |
303932fd DB |
8288 | if (bucket[j] >= size) { |
8289 | b = j; | |
8290 | break; | |
8291 | } | |
8292 | } | |
8293 | /* for a command with i SG entries, use bucket b. */ | |
8294 | bucket_map[i] = b; | |
8295 | } | |
8296 | } | |
8297 | ||
105a3dbc RE |
8298 | /* |
8299 | * return -ENODEV on err, 0 on success (or no action) | |
8300 | * allocates numerous items that must be freed later | |
8301 | */ | |
c706a795 | 8302 | static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support) |
303932fd | 8303 | { |
6c311b57 SC |
8304 | int i; |
8305 | unsigned long register_value; | |
e1f7de0c MG |
8306 | unsigned long transMethod = CFGTBL_Trans_Performant | |
8307 | (trans_support & CFGTBL_Trans_use_short_tags) | | |
b9af4937 SC |
8308 | CFGTBL_Trans_enable_directed_msix | |
8309 | (trans_support & (CFGTBL_Trans_io_accel1 | | |
8310 | CFGTBL_Trans_io_accel2)); | |
e1f7de0c | 8311 | struct access_method access = SA5_performant_access; |
def342bd SC |
8312 | |
8313 | /* This is a bit complicated. There are 8 registers on | |
8314 | * the controller which we write to to tell it 8 different | |
8315 | * sizes of commands which there may be. It's a way of | |
8316 | * reducing the DMA done to fetch each command. Encoded into | |
8317 | * each command's tag are 3 bits which communicate to the controller | |
8318 | * which of the eight sizes that command fits within. The size of | |
8319 | * each command depends on how many scatter gather entries there are. | |
8320 | * Each SG entry requires 16 bytes. The eight registers are programmed | |
8321 | * with the number of 16-byte blocks a command of that size requires. | |
8322 | * The smallest command possible requires 5 such 16 byte blocks. | |
d66ae08b | 8323 | * the largest command possible requires SG_ENTRIES_IN_CMD + 4 16-byte |
def342bd SC |
8324 | * blocks. Note, this only extends to the SG entries contained |
8325 | * within the command block, and does not extend to chained blocks | |
8326 | * of SG elements. bft[] contains the eight values we write to | |
8327 | * the registers. They are not evenly distributed, but have more | |
8328 | * sizes for small commands, and fewer sizes for larger commands. | |
8329 | */ | |
d66ae08b | 8330 | int bft[8] = {5, 6, 8, 10, 12, 20, 28, SG_ENTRIES_IN_CMD + 4}; |
b9af4937 SC |
8331 | #define MIN_IOACCEL2_BFT_ENTRY 5 |
8332 | #define HPSA_IOACCEL2_HEADER_SZ 4 | |
8333 | int bft2[16] = {MIN_IOACCEL2_BFT_ENTRY, 6, 7, 8, 9, 10, 11, 12, | |
8334 | 13, 14, 15, 16, 17, 18, 19, | |
8335 | HPSA_IOACCEL2_HEADER_SZ + IOACCEL2_MAXSGENTRIES}; | |
8336 | BUILD_BUG_ON(ARRAY_SIZE(bft2) != 16); | |
8337 | BUILD_BUG_ON(ARRAY_SIZE(bft) != 8); | |
8338 | BUILD_BUG_ON(offsetof(struct io_accel2_cmd, sg) > | |
8339 | 16 * MIN_IOACCEL2_BFT_ENTRY); | |
8340 | BUILD_BUG_ON(sizeof(struct ioaccel2_sg_element) != 16); | |
d66ae08b | 8341 | BUILD_BUG_ON(28 > SG_ENTRIES_IN_CMD + 4); |
303932fd DB |
8342 | /* 5 = 1 s/g entry or 4k |
8343 | * 6 = 2 s/g entry or 8k | |
8344 | * 8 = 4 s/g entry or 16k | |
8345 | * 10 = 6 s/g entry or 24k | |
8346 | */ | |
303932fd | 8347 | |
b3a52e79 SC |
8348 | /* If the controller supports either ioaccel method then |
8349 | * we can also use the RAID stack submit path that does not | |
8350 | * perform the superfluous readl() after each command submission. | |
8351 | */ | |
8352 | if (trans_support & (CFGTBL_Trans_io_accel1 | CFGTBL_Trans_io_accel2)) | |
8353 | access = SA5_performant_access_no_read; | |
8354 | ||
303932fd | 8355 | /* Controller spec: zero out this buffer. */ |
072b0518 SC |
8356 | for (i = 0; i < h->nreply_queues; i++) |
8357 | memset(h->reply_queue[i].head, 0, h->reply_queue_size); | |
303932fd | 8358 | |
d66ae08b SC |
8359 | bft[7] = SG_ENTRIES_IN_CMD + 4; |
8360 | calc_bucket_map(bft, ARRAY_SIZE(bft), | |
e1f7de0c | 8361 | SG_ENTRIES_IN_CMD, 4, h->blockFetchTable); |
303932fd DB |
8362 | for (i = 0; i < 8; i++) |
8363 | writel(bft[i], &h->transtable->BlockFetch[i]); | |
8364 | ||
8365 | /* size of controller ring buffer */ | |
8366 | writel(h->max_commands, &h->transtable->RepQSize); | |
254f796b | 8367 | writel(h->nreply_queues, &h->transtable->RepQCount); |
303932fd DB |
8368 | writel(0, &h->transtable->RepQCtrAddrLow32); |
8369 | writel(0, &h->transtable->RepQCtrAddrHigh32); | |
254f796b MG |
8370 | |
8371 | for (i = 0; i < h->nreply_queues; i++) { | |
8372 | writel(0, &h->transtable->RepQAddr[i].upper); | |
072b0518 | 8373 | writel(h->reply_queue[i].busaddr, |
254f796b MG |
8374 | &h->transtable->RepQAddr[i].lower); |
8375 | } | |
8376 | ||
b9af4937 | 8377 | writel(0, &h->cfgtable->HostWrite.command_pool_addr_hi); |
e1f7de0c MG |
8378 | writel(transMethod, &(h->cfgtable->HostWrite.TransportRequest)); |
8379 | /* | |
8380 | * enable outbound interrupt coalescing in accelerator mode; | |
8381 | */ | |
8382 | if (trans_support & CFGTBL_Trans_io_accel1) { | |
8383 | access = SA5_ioaccel_mode1_access; | |
8384 | writel(10, &h->cfgtable->HostWrite.CoalIntDelay); | |
8385 | writel(4, &h->cfgtable->HostWrite.CoalIntCount); | |
c349775e ST |
8386 | } else { |
8387 | if (trans_support & CFGTBL_Trans_io_accel2) { | |
8388 | access = SA5_ioaccel_mode2_access; | |
8389 | writel(10, &h->cfgtable->HostWrite.CoalIntDelay); | |
8390 | writel(4, &h->cfgtable->HostWrite.CoalIntCount); | |
8391 | } | |
e1f7de0c | 8392 | } |
303932fd | 8393 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); |
c706a795 RE |
8394 | if (hpsa_wait_for_mode_change_ack(h)) { |
8395 | dev_err(&h->pdev->dev, | |
8396 | "performant mode problem - doorbell timeout\n"); | |
8397 | return -ENODEV; | |
8398 | } | |
303932fd DB |
8399 | register_value = readl(&(h->cfgtable->TransportActive)); |
8400 | if (!(register_value & CFGTBL_Trans_Performant)) { | |
050f7147 SC |
8401 | dev_err(&h->pdev->dev, |
8402 | "performant mode problem - transport not active\n"); | |
c706a795 | 8403 | return -ENODEV; |
303932fd | 8404 | } |
960a30e7 | 8405 | /* Change the access methods to the performant access methods */ |
e1f7de0c MG |
8406 | h->access = access; |
8407 | h->transMethod = transMethod; | |
8408 | ||
b9af4937 SC |
8409 | if (!((trans_support & CFGTBL_Trans_io_accel1) || |
8410 | (trans_support & CFGTBL_Trans_io_accel2))) | |
c706a795 | 8411 | return 0; |
e1f7de0c | 8412 | |
b9af4937 SC |
8413 | if (trans_support & CFGTBL_Trans_io_accel1) { |
8414 | /* Set up I/O accelerator mode */ | |
8415 | for (i = 0; i < h->nreply_queues; i++) { | |
8416 | writel(i, h->vaddr + IOACCEL_MODE1_REPLY_QUEUE_INDEX); | |
8417 | h->reply_queue[i].current_entry = | |
8418 | readl(h->vaddr + IOACCEL_MODE1_PRODUCER_INDEX); | |
8419 | } | |
8420 | bft[7] = h->ioaccel_maxsg + 8; | |
8421 | calc_bucket_map(bft, ARRAY_SIZE(bft), h->ioaccel_maxsg, 8, | |
8422 | h->ioaccel1_blockFetchTable); | |
e1f7de0c | 8423 | |
b9af4937 | 8424 | /* initialize all reply queue entries to unused */ |
072b0518 SC |
8425 | for (i = 0; i < h->nreply_queues; i++) |
8426 | memset(h->reply_queue[i].head, | |
8427 | (u8) IOACCEL_MODE1_REPLY_UNUSED, | |
8428 | h->reply_queue_size); | |
e1f7de0c | 8429 | |
b9af4937 SC |
8430 | /* set all the constant fields in the accelerator command |
8431 | * frames once at init time to save CPU cycles later. | |
8432 | */ | |
8433 | for (i = 0; i < h->nr_cmds; i++) { | |
8434 | struct io_accel1_cmd *cp = &h->ioaccel_cmd_pool[i]; | |
8435 | ||
8436 | cp->function = IOACCEL1_FUNCTION_SCSIIO; | |
8437 | cp->err_info = (u32) (h->errinfo_pool_dhandle + | |
8438 | (i * sizeof(struct ErrorInfo))); | |
8439 | cp->err_info_len = sizeof(struct ErrorInfo); | |
8440 | cp->sgl_offset = IOACCEL1_SGLOFFSET; | |
2b08b3e9 DB |
8441 | cp->host_context_flags = |
8442 | cpu_to_le16(IOACCEL1_HCFLAGS_CISS_FORMAT); | |
b9af4937 SC |
8443 | cp->timeout_sec = 0; |
8444 | cp->ReplyQueue = 0; | |
50a0decf | 8445 | cp->tag = |
f2405db8 | 8446 | cpu_to_le64((i << DIRECT_LOOKUP_SHIFT)); |
50a0decf SC |
8447 | cp->host_addr = |
8448 | cpu_to_le64(h->ioaccel_cmd_pool_dhandle + | |
b9af4937 | 8449 | (i * sizeof(struct io_accel1_cmd))); |
b9af4937 SC |
8450 | } |
8451 | } else if (trans_support & CFGTBL_Trans_io_accel2) { | |
8452 | u64 cfg_offset, cfg_base_addr_index; | |
8453 | u32 bft2_offset, cfg_base_addr; | |
8454 | int rc; | |
8455 | ||
8456 | rc = hpsa_find_cfg_addrs(h->pdev, h->vaddr, &cfg_base_addr, | |
8457 | &cfg_base_addr_index, &cfg_offset); | |
8458 | BUILD_BUG_ON(offsetof(struct io_accel2_cmd, sg) != 64); | |
8459 | bft2[15] = h->ioaccel_maxsg + HPSA_IOACCEL2_HEADER_SZ; | |
8460 | calc_bucket_map(bft2, ARRAY_SIZE(bft2), h->ioaccel_maxsg, | |
8461 | 4, h->ioaccel2_blockFetchTable); | |
8462 | bft2_offset = readl(&h->cfgtable->io_accel_request_size_offset); | |
8463 | BUILD_BUG_ON(offsetof(struct CfgTable, | |
8464 | io_accel_request_size_offset) != 0xb8); | |
8465 | h->ioaccel2_bft2_regs = | |
8466 | remap_pci_mem(pci_resource_start(h->pdev, | |
8467 | cfg_base_addr_index) + | |
8468 | cfg_offset + bft2_offset, | |
8469 | ARRAY_SIZE(bft2) * | |
8470 | sizeof(*h->ioaccel2_bft2_regs)); | |
8471 | for (i = 0; i < ARRAY_SIZE(bft2); i++) | |
8472 | writel(bft2[i], &h->ioaccel2_bft2_regs[i]); | |
e1f7de0c | 8473 | } |
b9af4937 | 8474 | writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); |
c706a795 RE |
8475 | if (hpsa_wait_for_mode_change_ack(h)) { |
8476 | dev_err(&h->pdev->dev, | |
8477 | "performant mode problem - enabling ioaccel mode\n"); | |
8478 | return -ENODEV; | |
8479 | } | |
8480 | return 0; | |
e1f7de0c MG |
8481 | } |
8482 | ||
1fb7c98a RE |
8483 | /* Free ioaccel1 mode command blocks and block fetch table */ |
8484 | static void hpsa_free_ioaccel1_cmd_and_bft(struct ctlr_info *h) | |
8485 | { | |
105a3dbc | 8486 | if (h->ioaccel_cmd_pool) { |
1fb7c98a RE |
8487 | pci_free_consistent(h->pdev, |
8488 | h->nr_cmds * sizeof(*h->ioaccel_cmd_pool), | |
8489 | h->ioaccel_cmd_pool, | |
8490 | h->ioaccel_cmd_pool_dhandle); | |
105a3dbc RE |
8491 | h->ioaccel_cmd_pool = NULL; |
8492 | h->ioaccel_cmd_pool_dhandle = 0; | |
8493 | } | |
1fb7c98a | 8494 | kfree(h->ioaccel1_blockFetchTable); |
105a3dbc | 8495 | h->ioaccel1_blockFetchTable = NULL; |
1fb7c98a RE |
8496 | } |
8497 | ||
d37ffbe4 RE |
8498 | /* Allocate ioaccel1 mode command blocks and block fetch table */ |
8499 | static int hpsa_alloc_ioaccel1_cmd_and_bft(struct ctlr_info *h) | |
e1f7de0c | 8500 | { |
283b4a9b SC |
8501 | h->ioaccel_maxsg = |
8502 | readl(&(h->cfgtable->io_accel_max_embedded_sg_count)); | |
8503 | if (h->ioaccel_maxsg > IOACCEL1_MAXSGENTRIES) | |
8504 | h->ioaccel_maxsg = IOACCEL1_MAXSGENTRIES; | |
8505 | ||
e1f7de0c MG |
8506 | /* Command structures must be aligned on a 128-byte boundary |
8507 | * because the 7 lower bits of the address are used by the | |
8508 | * hardware. | |
8509 | */ | |
e1f7de0c MG |
8510 | BUILD_BUG_ON(sizeof(struct io_accel1_cmd) % |
8511 | IOACCEL1_COMMANDLIST_ALIGNMENT); | |
8512 | h->ioaccel_cmd_pool = | |
8513 | pci_alloc_consistent(h->pdev, | |
8514 | h->nr_cmds * sizeof(*h->ioaccel_cmd_pool), | |
8515 | &(h->ioaccel_cmd_pool_dhandle)); | |
8516 | ||
8517 | h->ioaccel1_blockFetchTable = | |
283b4a9b | 8518 | kmalloc(((h->ioaccel_maxsg + 1) * |
e1f7de0c MG |
8519 | sizeof(u32)), GFP_KERNEL); |
8520 | ||
8521 | if ((h->ioaccel_cmd_pool == NULL) || | |
8522 | (h->ioaccel1_blockFetchTable == NULL)) | |
8523 | goto clean_up; | |
8524 | ||
8525 | memset(h->ioaccel_cmd_pool, 0, | |
8526 | h->nr_cmds * sizeof(*h->ioaccel_cmd_pool)); | |
8527 | return 0; | |
8528 | ||
8529 | clean_up: | |
1fb7c98a | 8530 | hpsa_free_ioaccel1_cmd_and_bft(h); |
2dd02d74 | 8531 | return -ENOMEM; |
6c311b57 SC |
8532 | } |
8533 | ||
1fb7c98a RE |
8534 | /* Free ioaccel2 mode command blocks and block fetch table */ |
8535 | static void hpsa_free_ioaccel2_cmd_and_bft(struct ctlr_info *h) | |
8536 | { | |
d9a729f3 WS |
8537 | hpsa_free_ioaccel2_sg_chain_blocks(h); |
8538 | ||
105a3dbc | 8539 | if (h->ioaccel2_cmd_pool) { |
1fb7c98a RE |
8540 | pci_free_consistent(h->pdev, |
8541 | h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool), | |
8542 | h->ioaccel2_cmd_pool, | |
8543 | h->ioaccel2_cmd_pool_dhandle); | |
105a3dbc RE |
8544 | h->ioaccel2_cmd_pool = NULL; |
8545 | h->ioaccel2_cmd_pool_dhandle = 0; | |
8546 | } | |
1fb7c98a | 8547 | kfree(h->ioaccel2_blockFetchTable); |
105a3dbc | 8548 | h->ioaccel2_blockFetchTable = NULL; |
1fb7c98a RE |
8549 | } |
8550 | ||
d37ffbe4 RE |
8551 | /* Allocate ioaccel2 mode command blocks and block fetch table */ |
8552 | static int hpsa_alloc_ioaccel2_cmd_and_bft(struct ctlr_info *h) | |
aca9012a | 8553 | { |
d9a729f3 WS |
8554 | int rc; |
8555 | ||
aca9012a SC |
8556 | /* Allocate ioaccel2 mode command blocks and block fetch table */ |
8557 | ||
8558 | h->ioaccel_maxsg = | |
8559 | readl(&(h->cfgtable->io_accel_max_embedded_sg_count)); | |
8560 | if (h->ioaccel_maxsg > IOACCEL2_MAXSGENTRIES) | |
8561 | h->ioaccel_maxsg = IOACCEL2_MAXSGENTRIES; | |
8562 | ||
aca9012a SC |
8563 | BUILD_BUG_ON(sizeof(struct io_accel2_cmd) % |
8564 | IOACCEL2_COMMANDLIST_ALIGNMENT); | |
8565 | h->ioaccel2_cmd_pool = | |
8566 | pci_alloc_consistent(h->pdev, | |
8567 | h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool), | |
8568 | &(h->ioaccel2_cmd_pool_dhandle)); | |
8569 | ||
8570 | h->ioaccel2_blockFetchTable = | |
8571 | kmalloc(((h->ioaccel_maxsg + 1) * | |
8572 | sizeof(u32)), GFP_KERNEL); | |
8573 | ||
8574 | if ((h->ioaccel2_cmd_pool == NULL) || | |
d9a729f3 WS |
8575 | (h->ioaccel2_blockFetchTable == NULL)) { |
8576 | rc = -ENOMEM; | |
8577 | goto clean_up; | |
8578 | } | |
8579 | ||
8580 | rc = hpsa_allocate_ioaccel2_sg_chain_blocks(h); | |
8581 | if (rc) | |
aca9012a SC |
8582 | goto clean_up; |
8583 | ||
8584 | memset(h->ioaccel2_cmd_pool, 0, | |
8585 | h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool)); | |
8586 | return 0; | |
8587 | ||
8588 | clean_up: | |
1fb7c98a | 8589 | hpsa_free_ioaccel2_cmd_and_bft(h); |
d9a729f3 | 8590 | return rc; |
aca9012a SC |
8591 | } |
8592 | ||
105a3dbc RE |
8593 | /* Free items allocated by hpsa_put_ctlr_into_performant_mode */ |
8594 | static void hpsa_free_performant_mode(struct ctlr_info *h) | |
8595 | { | |
8596 | kfree(h->blockFetchTable); | |
8597 | h->blockFetchTable = NULL; | |
8598 | hpsa_free_reply_queues(h); | |
8599 | hpsa_free_ioaccel1_cmd_and_bft(h); | |
8600 | hpsa_free_ioaccel2_cmd_and_bft(h); | |
8601 | } | |
8602 | ||
8603 | /* return -ENODEV on error, 0 on success (or no action) | |
8604 | * allocates numerous items that must be freed later | |
8605 | */ | |
8606 | static int hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h) | |
6c311b57 SC |
8607 | { |
8608 | u32 trans_support; | |
e1f7de0c MG |
8609 | unsigned long transMethod = CFGTBL_Trans_Performant | |
8610 | CFGTBL_Trans_use_short_tags; | |
105a3dbc | 8611 | int i, rc; |
6c311b57 | 8612 | |
02ec19c8 | 8613 | if (hpsa_simple_mode) |
105a3dbc | 8614 | return 0; |
02ec19c8 | 8615 | |
67c99a72 | 8616 | trans_support = readl(&(h->cfgtable->TransportSupport)); |
8617 | if (!(trans_support & PERFORMANT_MODE)) | |
105a3dbc | 8618 | return 0; |
67c99a72 | 8619 | |
e1f7de0c MG |
8620 | /* Check for I/O accelerator mode support */ |
8621 | if (trans_support & CFGTBL_Trans_io_accel1) { | |
8622 | transMethod |= CFGTBL_Trans_io_accel1 | | |
8623 | CFGTBL_Trans_enable_directed_msix; | |
105a3dbc RE |
8624 | rc = hpsa_alloc_ioaccel1_cmd_and_bft(h); |
8625 | if (rc) | |
8626 | return rc; | |
8627 | } else if (trans_support & CFGTBL_Trans_io_accel2) { | |
8628 | transMethod |= CFGTBL_Trans_io_accel2 | | |
aca9012a | 8629 | CFGTBL_Trans_enable_directed_msix; |
105a3dbc RE |
8630 | rc = hpsa_alloc_ioaccel2_cmd_and_bft(h); |
8631 | if (rc) | |
8632 | return rc; | |
e1f7de0c MG |
8633 | } |
8634 | ||
eee0f03a | 8635 | h->nreply_queues = h->msix_vector > 0 ? h->msix_vector : 1; |
cba3d38b | 8636 | hpsa_get_max_perf_mode_cmds(h); |
6c311b57 | 8637 | /* Performant mode ring buffer and supporting data structures */ |
072b0518 | 8638 | h->reply_queue_size = h->max_commands * sizeof(u64); |
6c311b57 | 8639 | |
254f796b | 8640 | for (i = 0; i < h->nreply_queues; i++) { |
072b0518 SC |
8641 | h->reply_queue[i].head = pci_alloc_consistent(h->pdev, |
8642 | h->reply_queue_size, | |
8643 | &(h->reply_queue[i].busaddr)); | |
105a3dbc RE |
8644 | if (!h->reply_queue[i].head) { |
8645 | rc = -ENOMEM; | |
8646 | goto clean1; /* rq, ioaccel */ | |
8647 | } | |
254f796b MG |
8648 | h->reply_queue[i].size = h->max_commands; |
8649 | h->reply_queue[i].wraparound = 1; /* spec: init to 1 */ | |
8650 | h->reply_queue[i].current_entry = 0; | |
8651 | } | |
8652 | ||
6c311b57 | 8653 | /* Need a block fetch table for performant mode */ |
d66ae08b | 8654 | h->blockFetchTable = kmalloc(((SG_ENTRIES_IN_CMD + 1) * |
6c311b57 | 8655 | sizeof(u32)), GFP_KERNEL); |
105a3dbc RE |
8656 | if (!h->blockFetchTable) { |
8657 | rc = -ENOMEM; | |
8658 | goto clean1; /* rq, ioaccel */ | |
8659 | } | |
6c311b57 | 8660 | |
105a3dbc RE |
8661 | rc = hpsa_enter_performant_mode(h, trans_support); |
8662 | if (rc) | |
8663 | goto clean2; /* bft, rq, ioaccel */ | |
8664 | return 0; | |
303932fd | 8665 | |
105a3dbc | 8666 | clean2: /* bft, rq, ioaccel */ |
303932fd | 8667 | kfree(h->blockFetchTable); |
105a3dbc RE |
8668 | h->blockFetchTable = NULL; |
8669 | clean1: /* rq, ioaccel */ | |
8670 | hpsa_free_reply_queues(h); | |
8671 | hpsa_free_ioaccel1_cmd_and_bft(h); | |
8672 | hpsa_free_ioaccel2_cmd_and_bft(h); | |
8673 | return rc; | |
303932fd DB |
8674 | } |
8675 | ||
23100dd9 | 8676 | static int is_accelerated_cmd(struct CommandList *c) |
76438d08 | 8677 | { |
23100dd9 SC |
8678 | return c->cmd_type == CMD_IOACCEL1 || c->cmd_type == CMD_IOACCEL2; |
8679 | } | |
8680 | ||
8681 | static void hpsa_drain_accel_commands(struct ctlr_info *h) | |
8682 | { | |
8683 | struct CommandList *c = NULL; | |
f2405db8 | 8684 | int i, accel_cmds_out; |
281a7fd0 | 8685 | int refcount; |
76438d08 | 8686 | |
f2405db8 | 8687 | do { /* wait for all outstanding ioaccel commands to drain out */ |
23100dd9 | 8688 | accel_cmds_out = 0; |
f2405db8 | 8689 | for (i = 0; i < h->nr_cmds; i++) { |
f2405db8 | 8690 | c = h->cmd_pool + i; |
281a7fd0 WS |
8691 | refcount = atomic_inc_return(&c->refcount); |
8692 | if (refcount > 1) /* Command is allocated */ | |
8693 | accel_cmds_out += is_accelerated_cmd(c); | |
8694 | cmd_free(h, c); | |
f2405db8 | 8695 | } |
23100dd9 | 8696 | if (accel_cmds_out <= 0) |
281a7fd0 | 8697 | break; |
76438d08 SC |
8698 | msleep(100); |
8699 | } while (1); | |
8700 | } | |
8701 | ||
edd16368 SC |
8702 | /* |
8703 | * This is it. Register the PCI driver information for the cards we control | |
8704 | * the OS will call our registered routines when it finds one of our cards. | |
8705 | */ | |
8706 | static int __init hpsa_init(void) | |
8707 | { | |
31468401 | 8708 | return pci_register_driver(&hpsa_pci_driver); |
edd16368 SC |
8709 | } |
8710 | ||
8711 | static void __exit hpsa_cleanup(void) | |
8712 | { | |
8713 | pci_unregister_driver(&hpsa_pci_driver); | |
edd16368 SC |
8714 | } |
8715 | ||
e1f7de0c MG |
8716 | static void __attribute__((unused)) verify_offsets(void) |
8717 | { | |
dd0e19f3 ST |
8718 | #define VERIFY_OFFSET(member, offset) \ |
8719 | BUILD_BUG_ON(offsetof(struct raid_map_data, member) != offset) | |
8720 | ||
8721 | VERIFY_OFFSET(structure_size, 0); | |
8722 | VERIFY_OFFSET(volume_blk_size, 4); | |
8723 | VERIFY_OFFSET(volume_blk_cnt, 8); | |
8724 | VERIFY_OFFSET(phys_blk_shift, 16); | |
8725 | VERIFY_OFFSET(parity_rotation_shift, 17); | |
8726 | VERIFY_OFFSET(strip_size, 18); | |
8727 | VERIFY_OFFSET(disk_starting_blk, 20); | |
8728 | VERIFY_OFFSET(disk_blk_cnt, 28); | |
8729 | VERIFY_OFFSET(data_disks_per_row, 36); | |
8730 | VERIFY_OFFSET(metadata_disks_per_row, 38); | |
8731 | VERIFY_OFFSET(row_cnt, 40); | |
8732 | VERIFY_OFFSET(layout_map_count, 42); | |
8733 | VERIFY_OFFSET(flags, 44); | |
8734 | VERIFY_OFFSET(dekindex, 46); | |
8735 | /* VERIFY_OFFSET(reserved, 48 */ | |
8736 | VERIFY_OFFSET(data, 64); | |
8737 | ||
8738 | #undef VERIFY_OFFSET | |
8739 | ||
b66cc250 MM |
8740 | #define VERIFY_OFFSET(member, offset) \ |
8741 | BUILD_BUG_ON(offsetof(struct io_accel2_cmd, member) != offset) | |
8742 | ||
8743 | VERIFY_OFFSET(IU_type, 0); | |
8744 | VERIFY_OFFSET(direction, 1); | |
8745 | VERIFY_OFFSET(reply_queue, 2); | |
8746 | /* VERIFY_OFFSET(reserved1, 3); */ | |
8747 | VERIFY_OFFSET(scsi_nexus, 4); | |
8748 | VERIFY_OFFSET(Tag, 8); | |
8749 | VERIFY_OFFSET(cdb, 16); | |
8750 | VERIFY_OFFSET(cciss_lun, 32); | |
8751 | VERIFY_OFFSET(data_len, 40); | |
8752 | VERIFY_OFFSET(cmd_priority_task_attr, 44); | |
8753 | VERIFY_OFFSET(sg_count, 45); | |
8754 | /* VERIFY_OFFSET(reserved3 */ | |
8755 | VERIFY_OFFSET(err_ptr, 48); | |
8756 | VERIFY_OFFSET(err_len, 56); | |
8757 | /* VERIFY_OFFSET(reserved4 */ | |
8758 | VERIFY_OFFSET(sg, 64); | |
8759 | ||
8760 | #undef VERIFY_OFFSET | |
8761 | ||
e1f7de0c MG |
8762 | #define VERIFY_OFFSET(member, offset) \ |
8763 | BUILD_BUG_ON(offsetof(struct io_accel1_cmd, member) != offset) | |
8764 | ||
8765 | VERIFY_OFFSET(dev_handle, 0x00); | |
8766 | VERIFY_OFFSET(reserved1, 0x02); | |
8767 | VERIFY_OFFSET(function, 0x03); | |
8768 | VERIFY_OFFSET(reserved2, 0x04); | |
8769 | VERIFY_OFFSET(err_info, 0x0C); | |
8770 | VERIFY_OFFSET(reserved3, 0x10); | |
8771 | VERIFY_OFFSET(err_info_len, 0x12); | |
8772 | VERIFY_OFFSET(reserved4, 0x13); | |
8773 | VERIFY_OFFSET(sgl_offset, 0x14); | |
8774 | VERIFY_OFFSET(reserved5, 0x15); | |
8775 | VERIFY_OFFSET(transfer_len, 0x1C); | |
8776 | VERIFY_OFFSET(reserved6, 0x20); | |
8777 | VERIFY_OFFSET(io_flags, 0x24); | |
8778 | VERIFY_OFFSET(reserved7, 0x26); | |
8779 | VERIFY_OFFSET(LUN, 0x34); | |
8780 | VERIFY_OFFSET(control, 0x3C); | |
8781 | VERIFY_OFFSET(CDB, 0x40); | |
8782 | VERIFY_OFFSET(reserved8, 0x50); | |
8783 | VERIFY_OFFSET(host_context_flags, 0x60); | |
8784 | VERIFY_OFFSET(timeout_sec, 0x62); | |
8785 | VERIFY_OFFSET(ReplyQueue, 0x64); | |
8786 | VERIFY_OFFSET(reserved9, 0x65); | |
50a0decf | 8787 | VERIFY_OFFSET(tag, 0x68); |
e1f7de0c MG |
8788 | VERIFY_OFFSET(host_addr, 0x70); |
8789 | VERIFY_OFFSET(CISS_LUN, 0x78); | |
8790 | VERIFY_OFFSET(SG, 0x78 + 8); | |
8791 | #undef VERIFY_OFFSET | |
8792 | } | |
8793 | ||
edd16368 SC |
8794 | module_init(hpsa_init); |
8795 | module_exit(hpsa_cleanup); |