2 * Disk Array driver for HP Smart Array SAS controllers
3 * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P.
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.
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.
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.
18 * Questions/Comments/Bugfixes to iss_storagedev@hp.com
22 #include <linux/module.h>
23 #include <linux/interrupt.h>
24 #include <linux/types.h>
25 #include <linux/pci.h>
26 #include <linux/pci-aspm.h>
27 #include <linux/kernel.h>
28 #include <linux/slab.h>
29 #include <linux/delay.h>
31 #include <linux/timer.h>
32 #include <linux/init.h>
33 #include <linux/spinlock.h>
34 #include <linux/compat.h>
35 #include <linux/blktrace_api.h>
36 #include <linux/uaccess.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>
45 #include <scsi/scsi_tcq.h>
46 #include <linux/cciss_ioctl.h>
47 #include <linux/string.h>
48 #include <linux/bitmap.h>
49 #include <linux/atomic.h>
50 #include <linux/jiffies.h>
51 #include <linux/percpu-defs.h>
52 #include <linux/percpu.h>
53 #include <asm/unaligned.h>
54 #include <asm/div64.h>
58 /* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */
59 #define HPSA_DRIVER_VERSION "3.4.4-1"
60 #define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
63 /* How long to wait (in milliseconds) for board to go into simple mode */
64 #define MAX_CONFIG_WAIT 30000
65 #define MAX_IOCTL_CONFIG_WAIT 1000
67 /*define how many times we will try a command because of bus resets */
68 #define MAX_CMD_RETRIES 3
70 /* Embedded module documentation macros - see modules.h */
71 MODULE_AUTHOR("Hewlett-Packard Company");
72 MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \
74 MODULE_SUPPORTED_DEVICE("HP Smart Array Controllers");
75 MODULE_VERSION(HPSA_DRIVER_VERSION
);
76 MODULE_LICENSE("GPL");
78 static int hpsa_allow_any
;
79 module_param(hpsa_allow_any
, int, S_IRUGO
|S_IWUSR
);
80 MODULE_PARM_DESC(hpsa_allow_any
,
81 "Allow hpsa driver to access unknown HP Smart Array hardware");
82 static int hpsa_simple_mode
;
83 module_param(hpsa_simple_mode
, int, S_IRUGO
|S_IWUSR
);
84 MODULE_PARM_DESC(hpsa_simple_mode
,
85 "Use 'simple mode' rather than 'performant mode'");
87 /* define the PCI info for the cards we can control */
88 static const struct pci_device_id hpsa_pci_device_id
[] = {
89 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3241},
90 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3243},
91 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3245},
92 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3247},
93 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3249},
94 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x324A},
95 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x324B},
96 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3233},
97 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3350},
98 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3351},
99 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3352},
100 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3353},
101 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3354},
102 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3355},
103 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3356},
104 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1921},
105 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1922},
106 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1923},
107 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1924},
108 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1926},
109 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1928},
110 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1929},
111 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BD},
112 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BE},
113 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BF},
114 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C0},
115 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C1},
116 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C2},
117 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C3},
118 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C4},
119 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C5},
120 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C6},
121 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C7},
122 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C8},
123 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C9},
124 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CA},
125 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CB},
126 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CC},
127 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CD},
128 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CE},
129 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0076},
130 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0087},
131 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x007D},
132 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0088},
133 {PCI_VENDOR_ID_HP
, 0x333f, 0x103c, 0x333f},
134 {PCI_VENDOR_ID_HP
, PCI_ANY_ID
, PCI_ANY_ID
, PCI_ANY_ID
,
135 PCI_CLASS_STORAGE_RAID
<< 8, 0xffff << 8, 0},
139 MODULE_DEVICE_TABLE(pci
, hpsa_pci_device_id
);
141 /* board_id = Subsystem Device ID & Vendor ID
142 * product = Marketing Name for the board
143 * access = Address of the struct of function pointers
145 static struct board_type products
[] = {
146 {0x3241103C, "Smart Array P212", &SA5_access
},
147 {0x3243103C, "Smart Array P410", &SA5_access
},
148 {0x3245103C, "Smart Array P410i", &SA5_access
},
149 {0x3247103C, "Smart Array P411", &SA5_access
},
150 {0x3249103C, "Smart Array P812", &SA5_access
},
151 {0x324A103C, "Smart Array P712m", &SA5_access
},
152 {0x324B103C, "Smart Array P711m", &SA5_access
},
153 {0x3233103C, "HP StorageWorks 1210m", &SA5_access
}, /* alias of 333f */
154 {0x3350103C, "Smart Array P222", &SA5_access
},
155 {0x3351103C, "Smart Array P420", &SA5_access
},
156 {0x3352103C, "Smart Array P421", &SA5_access
},
157 {0x3353103C, "Smart Array P822", &SA5_access
},
158 {0x3354103C, "Smart Array P420i", &SA5_access
},
159 {0x3355103C, "Smart Array P220i", &SA5_access
},
160 {0x3356103C, "Smart Array P721m", &SA5_access
},
161 {0x1921103C, "Smart Array P830i", &SA5_access
},
162 {0x1922103C, "Smart Array P430", &SA5_access
},
163 {0x1923103C, "Smart Array P431", &SA5_access
},
164 {0x1924103C, "Smart Array P830", &SA5_access
},
165 {0x1926103C, "Smart Array P731m", &SA5_access
},
166 {0x1928103C, "Smart Array P230i", &SA5_access
},
167 {0x1929103C, "Smart Array P530", &SA5_access
},
168 {0x21BD103C, "Smart Array", &SA5_access
},
169 {0x21BE103C, "Smart Array", &SA5_access
},
170 {0x21BF103C, "Smart Array", &SA5_access
},
171 {0x21C0103C, "Smart Array", &SA5_access
},
172 {0x21C1103C, "Smart Array", &SA5_access
},
173 {0x21C2103C, "Smart Array", &SA5_access
},
174 {0x21C3103C, "Smart Array", &SA5_access
},
175 {0x21C4103C, "Smart Array", &SA5_access
},
176 {0x21C5103C, "Smart Array", &SA5_access
},
177 {0x21C6103C, "Smart Array", &SA5_access
},
178 {0x21C7103C, "Smart Array", &SA5_access
},
179 {0x21C8103C, "Smart Array", &SA5_access
},
180 {0x21C9103C, "Smart Array", &SA5_access
},
181 {0x21CA103C, "Smart Array", &SA5_access
},
182 {0x21CB103C, "Smart Array", &SA5_access
},
183 {0x21CC103C, "Smart Array", &SA5_access
},
184 {0x21CD103C, "Smart Array", &SA5_access
},
185 {0x21CE103C, "Smart Array", &SA5_access
},
186 {0x00761590, "HP Storage P1224 Array Controller", &SA5_access
},
187 {0x00871590, "HP Storage P1224e Array Controller", &SA5_access
},
188 {0x007D1590, "HP Storage P1228 Array Controller", &SA5_access
},
189 {0x00881590, "HP Storage P1228e Array Controller", &SA5_access
},
190 {0x333f103c, "HP StorageWorks 1210m Array Controller", &SA5_access
},
191 {0xFFFF103C, "Unknown Smart Array", &SA5_access
},
194 static int number_of_controllers
;
196 static irqreturn_t
do_hpsa_intr_intx(int irq
, void *dev_id
);
197 static irqreturn_t
do_hpsa_intr_msi(int irq
, void *dev_id
);
198 static int hpsa_ioctl(struct scsi_device
*dev
, int cmd
, void __user
*arg
);
199 static void lock_and_start_io(struct ctlr_info
*h
);
200 static void start_io(struct ctlr_info
*h
, unsigned long *flags
);
203 static int hpsa_compat_ioctl(struct scsi_device
*dev
, int cmd
,
207 static void cmd_free(struct ctlr_info
*h
, struct CommandList
*c
);
208 static void cmd_special_free(struct ctlr_info
*h
, struct CommandList
*c
);
209 static struct CommandList
*cmd_alloc(struct ctlr_info
*h
);
210 static struct CommandList
*cmd_special_alloc(struct ctlr_info
*h
);
211 static int fill_cmd(struct CommandList
*c
, u8 cmd
, struct ctlr_info
*h
,
212 void *buff
, size_t size
, u16 page_code
, unsigned char *scsi3addr
,
214 #define VPD_PAGE (1 << 8)
216 static int hpsa_scsi_queue_command(struct Scsi_Host
*h
, struct scsi_cmnd
*cmd
);
217 static void hpsa_scan_start(struct Scsi_Host
*);
218 static int hpsa_scan_finished(struct Scsi_Host
*sh
,
219 unsigned long elapsed_time
);
220 static int hpsa_change_queue_depth(struct scsi_device
*sdev
, int qdepth
);
222 static int hpsa_eh_device_reset_handler(struct scsi_cmnd
*scsicmd
);
223 static int hpsa_eh_abort_handler(struct scsi_cmnd
*scsicmd
);
224 static int hpsa_slave_alloc(struct scsi_device
*sdev
);
225 static void hpsa_slave_destroy(struct scsi_device
*sdev
);
227 static void hpsa_update_scsi_devices(struct ctlr_info
*h
, int hostno
);
228 static int check_for_unit_attention(struct ctlr_info
*h
,
229 struct CommandList
*c
);
230 static void check_ioctl_unit_attention(struct ctlr_info
*h
,
231 struct CommandList
*c
);
232 /* performant mode helper functions */
233 static void calc_bucket_map(int *bucket
, int num_buckets
,
234 int nsgs
, int min_blocks
, u32
*bucket_map
);
235 static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info
*h
);
236 static inline u32
next_command(struct ctlr_info
*h
, u8 q
);
237 static int hpsa_find_cfg_addrs(struct pci_dev
*pdev
, void __iomem
*vaddr
,
238 u32
*cfg_base_addr
, u64
*cfg_base_addr_index
,
240 static int hpsa_pci_find_memory_BAR(struct pci_dev
*pdev
,
241 unsigned long *memory_bar
);
242 static int hpsa_lookup_board_id(struct pci_dev
*pdev
, u32
*board_id
);
243 static int hpsa_wait_for_board_state(struct pci_dev
*pdev
, void __iomem
*vaddr
,
245 static inline void finish_cmd(struct CommandList
*c
);
246 static void hpsa_wait_for_mode_change_ack(struct ctlr_info
*h
);
247 #define BOARD_NOT_READY 0
248 #define BOARD_READY 1
249 static void hpsa_drain_accel_commands(struct ctlr_info
*h
);
250 static void hpsa_flush_cache(struct ctlr_info
*h
);
251 static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info
*h
,
252 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
255 static inline struct ctlr_info
*sdev_to_hba(struct scsi_device
*sdev
)
257 unsigned long *priv
= shost_priv(sdev
->host
);
258 return (struct ctlr_info
*) *priv
;
261 static inline struct ctlr_info
*shost_to_hba(struct Scsi_Host
*sh
)
263 unsigned long *priv
= shost_priv(sh
);
264 return (struct ctlr_info
*) *priv
;
267 static int check_for_unit_attention(struct ctlr_info
*h
,
268 struct CommandList
*c
)
270 if (c
->err_info
->SenseInfo
[2] != UNIT_ATTENTION
)
273 switch (c
->err_info
->SenseInfo
[12]) {
275 dev_warn(&h
->pdev
->dev
, HPSA
"%d: a state change "
276 "detected, command retried\n", h
->ctlr
);
279 dev_warn(&h
->pdev
->dev
,
280 HPSA
"%d: LUN failure detected\n", h
->ctlr
);
282 case REPORT_LUNS_CHANGED
:
283 dev_warn(&h
->pdev
->dev
,
284 HPSA
"%d: report LUN data changed\n", h
->ctlr
);
286 * Note: this REPORT_LUNS_CHANGED condition only occurs on the external
287 * target (array) devices.
291 dev_warn(&h
->pdev
->dev
, HPSA
"%d: a power on "
292 "or device reset detected\n", h
->ctlr
);
294 case UNIT_ATTENTION_CLEARED
:
295 dev_warn(&h
->pdev
->dev
, HPSA
"%d: unit attention "
296 "cleared by another initiator\n", h
->ctlr
);
299 dev_warn(&h
->pdev
->dev
, HPSA
"%d: unknown "
300 "unit attention detected\n", h
->ctlr
);
306 static int check_for_busy(struct ctlr_info
*h
, struct CommandList
*c
)
308 if (c
->err_info
->CommandStatus
!= CMD_TARGET_STATUS
||
309 (c
->err_info
->ScsiStatus
!= SAM_STAT_BUSY
&&
310 c
->err_info
->ScsiStatus
!= SAM_STAT_TASK_SET_FULL
))
312 dev_warn(&h
->pdev
->dev
, HPSA
"device busy");
316 static ssize_t
host_store_hp_ssd_smart_path_status(struct device
*dev
,
317 struct device_attribute
*attr
,
318 const char *buf
, size_t count
)
322 struct Scsi_Host
*shost
= class_to_shost(dev
);
325 if (!capable(CAP_SYS_ADMIN
) || !capable(CAP_SYS_RAWIO
))
327 len
= count
> sizeof(tmpbuf
) - 1 ? sizeof(tmpbuf
) - 1 : count
;
328 strncpy(tmpbuf
, buf
, len
);
330 if (sscanf(tmpbuf
, "%d", &status
) != 1)
332 h
= shost_to_hba(shost
);
333 h
->acciopath_status
= !!status
;
334 dev_warn(&h
->pdev
->dev
,
335 "hpsa: HP SSD Smart Path %s via sysfs update.\n",
336 h
->acciopath_status
? "enabled" : "disabled");
340 static ssize_t
host_store_raid_offload_debug(struct device
*dev
,
341 struct device_attribute
*attr
,
342 const char *buf
, size_t count
)
344 int debug_level
, len
;
346 struct Scsi_Host
*shost
= class_to_shost(dev
);
349 if (!capable(CAP_SYS_ADMIN
) || !capable(CAP_SYS_RAWIO
))
351 len
= count
> sizeof(tmpbuf
) - 1 ? sizeof(tmpbuf
) - 1 : count
;
352 strncpy(tmpbuf
, buf
, len
);
354 if (sscanf(tmpbuf
, "%d", &debug_level
) != 1)
358 h
= shost_to_hba(shost
);
359 h
->raid_offload_debug
= debug_level
;
360 dev_warn(&h
->pdev
->dev
, "hpsa: Set raid_offload_debug level = %d\n",
361 h
->raid_offload_debug
);
365 static ssize_t
host_store_rescan(struct device
*dev
,
366 struct device_attribute
*attr
,
367 const char *buf
, size_t count
)
370 struct Scsi_Host
*shost
= class_to_shost(dev
);
371 h
= shost_to_hba(shost
);
372 hpsa_scan_start(h
->scsi_host
);
376 static ssize_t
host_show_firmware_revision(struct device
*dev
,
377 struct device_attribute
*attr
, char *buf
)
380 struct Scsi_Host
*shost
= class_to_shost(dev
);
381 unsigned char *fwrev
;
383 h
= shost_to_hba(shost
);
384 if (!h
->hba_inquiry_data
)
386 fwrev
= &h
->hba_inquiry_data
[32];
387 return snprintf(buf
, 20, "%c%c%c%c\n",
388 fwrev
[0], fwrev
[1], fwrev
[2], fwrev
[3]);
391 static ssize_t
host_show_commands_outstanding(struct device
*dev
,
392 struct device_attribute
*attr
, char *buf
)
394 struct Scsi_Host
*shost
= class_to_shost(dev
);
395 struct ctlr_info
*h
= shost_to_hba(shost
);
397 return snprintf(buf
, 20, "%d\n",
398 atomic_read(&h
->commands_outstanding
));
401 static ssize_t
host_show_transport_mode(struct device
*dev
,
402 struct device_attribute
*attr
, char *buf
)
405 struct Scsi_Host
*shost
= class_to_shost(dev
);
407 h
= shost_to_hba(shost
);
408 return snprintf(buf
, 20, "%s\n",
409 h
->transMethod
& CFGTBL_Trans_Performant
?
410 "performant" : "simple");
413 static ssize_t
host_show_hp_ssd_smart_path_status(struct device
*dev
,
414 struct device_attribute
*attr
, char *buf
)
417 struct Scsi_Host
*shost
= class_to_shost(dev
);
419 h
= shost_to_hba(shost
);
420 return snprintf(buf
, 30, "HP SSD Smart Path %s\n",
421 (h
->acciopath_status
== 1) ? "enabled" : "disabled");
424 /* List of controllers which cannot be hard reset on kexec with reset_devices */
425 static u32 unresettable_controller
[] = {
426 0x324a103C, /* Smart Array P712m */
427 0x324b103C, /* SmartArray P711m */
428 0x3223103C, /* Smart Array P800 */
429 0x3234103C, /* Smart Array P400 */
430 0x3235103C, /* Smart Array P400i */
431 0x3211103C, /* Smart Array E200i */
432 0x3212103C, /* Smart Array E200 */
433 0x3213103C, /* Smart Array E200i */
434 0x3214103C, /* Smart Array E200i */
435 0x3215103C, /* Smart Array E200i */
436 0x3237103C, /* Smart Array E500 */
437 0x323D103C, /* Smart Array P700m */
438 0x40800E11, /* Smart Array 5i */
439 0x409C0E11, /* Smart Array 6400 */
440 0x409D0E11, /* Smart Array 6400 EM */
441 0x40700E11, /* Smart Array 5300 */
442 0x40820E11, /* Smart Array 532 */
443 0x40830E11, /* Smart Array 5312 */
444 0x409A0E11, /* Smart Array 641 */
445 0x409B0E11, /* Smart Array 642 */
446 0x40910E11, /* Smart Array 6i */
449 /* List of controllers which cannot even be soft reset */
450 static u32 soft_unresettable_controller
[] = {
451 0x40800E11, /* Smart Array 5i */
452 0x40700E11, /* Smart Array 5300 */
453 0x40820E11, /* Smart Array 532 */
454 0x40830E11, /* Smart Array 5312 */
455 0x409A0E11, /* Smart Array 641 */
456 0x409B0E11, /* Smart Array 642 */
457 0x40910E11, /* Smart Array 6i */
458 /* Exclude 640x boards. These are two pci devices in one slot
459 * which share a battery backed cache module. One controls the
460 * cache, the other accesses the cache through the one that controls
461 * it. If we reset the one controlling the cache, the other will
462 * likely not be happy. Just forbid resetting this conjoined mess.
463 * The 640x isn't really supported by hpsa anyway.
465 0x409C0E11, /* Smart Array 6400 */
466 0x409D0E11, /* Smart Array 6400 EM */
469 static int ctlr_is_hard_resettable(u32 board_id
)
473 for (i
= 0; i
< ARRAY_SIZE(unresettable_controller
); i
++)
474 if (unresettable_controller
[i
] == board_id
)
479 static int ctlr_is_soft_resettable(u32 board_id
)
483 for (i
= 0; i
< ARRAY_SIZE(soft_unresettable_controller
); i
++)
484 if (soft_unresettable_controller
[i
] == board_id
)
489 static int ctlr_is_resettable(u32 board_id
)
491 return ctlr_is_hard_resettable(board_id
) ||
492 ctlr_is_soft_resettable(board_id
);
495 static ssize_t
host_show_resettable(struct device
*dev
,
496 struct device_attribute
*attr
, char *buf
)
499 struct Scsi_Host
*shost
= class_to_shost(dev
);
501 h
= shost_to_hba(shost
);
502 return snprintf(buf
, 20, "%d\n", ctlr_is_resettable(h
->board_id
));
505 static inline int is_logical_dev_addr_mode(unsigned char scsi3addr
[])
507 return (scsi3addr
[3] & 0xC0) == 0x40;
510 static const char * const raid_label
[] = { "0", "4", "1(+0)", "5", "5+1", "6",
511 "1(+0)ADM", "UNKNOWN"
513 #define HPSA_RAID_0 0
514 #define HPSA_RAID_4 1
515 #define HPSA_RAID_1 2 /* also used for RAID 10 */
516 #define HPSA_RAID_5 3 /* also used for RAID 50 */
517 #define HPSA_RAID_51 4
518 #define HPSA_RAID_6 5 /* also used for RAID 60 */
519 #define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */
520 #define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 1)
522 static ssize_t
raid_level_show(struct device
*dev
,
523 struct device_attribute
*attr
, char *buf
)
526 unsigned char rlevel
;
528 struct scsi_device
*sdev
;
529 struct hpsa_scsi_dev_t
*hdev
;
532 sdev
= to_scsi_device(dev
);
533 h
= sdev_to_hba(sdev
);
534 spin_lock_irqsave(&h
->lock
, flags
);
535 hdev
= sdev
->hostdata
;
537 spin_unlock_irqrestore(&h
->lock
, flags
);
541 /* Is this even a logical drive? */
542 if (!is_logical_dev_addr_mode(hdev
->scsi3addr
)) {
543 spin_unlock_irqrestore(&h
->lock
, flags
);
544 l
= snprintf(buf
, PAGE_SIZE
, "N/A\n");
548 rlevel
= hdev
->raid_level
;
549 spin_unlock_irqrestore(&h
->lock
, flags
);
550 if (rlevel
> RAID_UNKNOWN
)
551 rlevel
= RAID_UNKNOWN
;
552 l
= snprintf(buf
, PAGE_SIZE
, "RAID %s\n", raid_label
[rlevel
]);
556 static ssize_t
lunid_show(struct device
*dev
,
557 struct device_attribute
*attr
, char *buf
)
560 struct scsi_device
*sdev
;
561 struct hpsa_scsi_dev_t
*hdev
;
563 unsigned char lunid
[8];
565 sdev
= to_scsi_device(dev
);
566 h
= sdev_to_hba(sdev
);
567 spin_lock_irqsave(&h
->lock
, flags
);
568 hdev
= sdev
->hostdata
;
570 spin_unlock_irqrestore(&h
->lock
, flags
);
573 memcpy(lunid
, hdev
->scsi3addr
, sizeof(lunid
));
574 spin_unlock_irqrestore(&h
->lock
, flags
);
575 return snprintf(buf
, 20, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
576 lunid
[0], lunid
[1], lunid
[2], lunid
[3],
577 lunid
[4], lunid
[5], lunid
[6], lunid
[7]);
580 static ssize_t
unique_id_show(struct device
*dev
,
581 struct device_attribute
*attr
, char *buf
)
584 struct scsi_device
*sdev
;
585 struct hpsa_scsi_dev_t
*hdev
;
587 unsigned char sn
[16];
589 sdev
= to_scsi_device(dev
);
590 h
= sdev_to_hba(sdev
);
591 spin_lock_irqsave(&h
->lock
, flags
);
592 hdev
= sdev
->hostdata
;
594 spin_unlock_irqrestore(&h
->lock
, flags
);
597 memcpy(sn
, hdev
->device_id
, sizeof(sn
));
598 spin_unlock_irqrestore(&h
->lock
, flags
);
599 return snprintf(buf
, 16 * 2 + 2,
600 "%02X%02X%02X%02X%02X%02X%02X%02X"
601 "%02X%02X%02X%02X%02X%02X%02X%02X\n",
602 sn
[0], sn
[1], sn
[2], sn
[3],
603 sn
[4], sn
[5], sn
[6], sn
[7],
604 sn
[8], sn
[9], sn
[10], sn
[11],
605 sn
[12], sn
[13], sn
[14], sn
[15]);
608 static ssize_t
host_show_hp_ssd_smart_path_enabled(struct device
*dev
,
609 struct device_attribute
*attr
, char *buf
)
612 struct scsi_device
*sdev
;
613 struct hpsa_scsi_dev_t
*hdev
;
617 sdev
= to_scsi_device(dev
);
618 h
= sdev_to_hba(sdev
);
619 spin_lock_irqsave(&h
->lock
, flags
);
620 hdev
= sdev
->hostdata
;
622 spin_unlock_irqrestore(&h
->lock
, flags
);
625 offload_enabled
= hdev
->offload_enabled
;
626 spin_unlock_irqrestore(&h
->lock
, flags
);
627 return snprintf(buf
, 20, "%d\n", offload_enabled
);
630 static DEVICE_ATTR(raid_level
, S_IRUGO
, raid_level_show
, NULL
);
631 static DEVICE_ATTR(lunid
, S_IRUGO
, lunid_show
, NULL
);
632 static DEVICE_ATTR(unique_id
, S_IRUGO
, unique_id_show
, NULL
);
633 static DEVICE_ATTR(rescan
, S_IWUSR
, NULL
, host_store_rescan
);
634 static DEVICE_ATTR(hp_ssd_smart_path_enabled
, S_IRUGO
,
635 host_show_hp_ssd_smart_path_enabled
, NULL
);
636 static DEVICE_ATTR(hp_ssd_smart_path_status
, S_IWUSR
|S_IRUGO
|S_IROTH
,
637 host_show_hp_ssd_smart_path_status
,
638 host_store_hp_ssd_smart_path_status
);
639 static DEVICE_ATTR(raid_offload_debug
, S_IWUSR
, NULL
,
640 host_store_raid_offload_debug
);
641 static DEVICE_ATTR(firmware_revision
, S_IRUGO
,
642 host_show_firmware_revision
, NULL
);
643 static DEVICE_ATTR(commands_outstanding
, S_IRUGO
,
644 host_show_commands_outstanding
, NULL
);
645 static DEVICE_ATTR(transport_mode
, S_IRUGO
,
646 host_show_transport_mode
, NULL
);
647 static DEVICE_ATTR(resettable
, S_IRUGO
,
648 host_show_resettable
, NULL
);
650 static struct device_attribute
*hpsa_sdev_attrs
[] = {
651 &dev_attr_raid_level
,
654 &dev_attr_hp_ssd_smart_path_enabled
,
658 static struct device_attribute
*hpsa_shost_attrs
[] = {
660 &dev_attr_firmware_revision
,
661 &dev_attr_commands_outstanding
,
662 &dev_attr_transport_mode
,
663 &dev_attr_resettable
,
664 &dev_attr_hp_ssd_smart_path_status
,
665 &dev_attr_raid_offload_debug
,
669 static struct scsi_host_template hpsa_driver_template
= {
670 .module
= THIS_MODULE
,
673 .queuecommand
= hpsa_scsi_queue_command
,
674 .scan_start
= hpsa_scan_start
,
675 .scan_finished
= hpsa_scan_finished
,
676 .change_queue_depth
= hpsa_change_queue_depth
,
678 .use_clustering
= ENABLE_CLUSTERING
,
679 .eh_abort_handler
= hpsa_eh_abort_handler
,
680 .eh_device_reset_handler
= hpsa_eh_device_reset_handler
,
682 .slave_alloc
= hpsa_slave_alloc
,
683 .slave_destroy
= hpsa_slave_destroy
,
685 .compat_ioctl
= hpsa_compat_ioctl
,
687 .sdev_attrs
= hpsa_sdev_attrs
,
688 .shost_attrs
= hpsa_shost_attrs
,
694 /* Enqueuing and dequeuing functions for cmdlists. */
695 static inline void addQ(struct list_head
*list
, struct CommandList
*c
)
697 list_add_tail(&c
->list
, list
);
700 static inline u32
next_command(struct ctlr_info
*h
, u8 q
)
703 struct reply_queue_buffer
*rq
= &h
->reply_queue
[q
];
705 if (h
->transMethod
& CFGTBL_Trans_io_accel1
)
706 return h
->access
.command_completed(h
, q
);
708 if (unlikely(!(h
->transMethod
& CFGTBL_Trans_Performant
)))
709 return h
->access
.command_completed(h
, q
);
711 if ((rq
->head
[rq
->current_entry
] & 1) == rq
->wraparound
) {
712 a
= rq
->head
[rq
->current_entry
];
714 atomic_dec(&h
->commands_outstanding
);
718 /* Check for wraparound */
719 if (rq
->current_entry
== h
->max_commands
) {
720 rq
->current_entry
= 0;
727 * There are some special bits in the bus address of the
728 * command that we have to set for the controller to know
729 * how to process the command:
731 * Normal performant mode:
732 * bit 0: 1 means performant mode, 0 means simple mode.
733 * bits 1-3 = block fetch table entry
734 * bits 4-6 = command type (== 0)
737 * bit 0 = "performant mode" bit.
738 * bits 1-3 = block fetch table entry
739 * bits 4-6 = command type (== 110)
740 * (command type is needed because ioaccel1 mode
741 * commands are submitted through the same register as normal
742 * mode commands, so this is how the controller knows whether
743 * the command is normal mode or ioaccel1 mode.)
746 * bit 0 = "performant mode" bit.
747 * bits 1-4 = block fetch table entry (note extra bit)
748 * bits 4-6 = not needed, because ioaccel2 mode has
749 * a separate special register for submitting commands.
752 /* set_performant_mode: Modify the tag for cciss performant
753 * set bit 0 for pull model, bits 3-1 for block fetch
756 static void set_performant_mode(struct ctlr_info
*h
, struct CommandList
*c
)
758 if (likely(h
->transMethod
& CFGTBL_Trans_Performant
)) {
759 c
->busaddr
|= 1 | (h
->blockFetchTable
[c
->Header
.SGList
] << 1);
760 if (likely(h
->msix_vector
> 0))
761 c
->Header
.ReplyQueue
=
762 raw_smp_processor_id() % h
->nreply_queues
;
766 static void set_ioaccel1_performant_mode(struct ctlr_info
*h
,
767 struct CommandList
*c
)
769 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[c
->cmdindex
];
771 /* Tell the controller to post the reply to the queue for this
772 * processor. This seems to give the best I/O throughput.
774 cp
->ReplyQueue
= smp_processor_id() % h
->nreply_queues
;
775 /* Set the bits in the address sent down to include:
776 * - performant mode bit (bit 0)
777 * - pull count (bits 1-3)
778 * - command type (bits 4-6)
780 c
->busaddr
|= 1 | (h
->ioaccel1_blockFetchTable
[c
->Header
.SGList
] << 1) |
781 IOACCEL1_BUSADDR_CMDTYPE
;
784 static void set_ioaccel2_performant_mode(struct ctlr_info
*h
,
785 struct CommandList
*c
)
787 struct io_accel2_cmd
*cp
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
789 /* Tell the controller to post the reply to the queue for this
790 * processor. This seems to give the best I/O throughput.
792 cp
->reply_queue
= smp_processor_id() % h
->nreply_queues
;
793 /* Set the bits in the address sent down to include:
794 * - performant mode bit not used in ioaccel mode 2
795 * - pull count (bits 0-3)
796 * - command type isn't needed for ioaccel2
798 c
->busaddr
|= (h
->ioaccel2_blockFetchTable
[cp
->sg_count
]);
801 static int is_firmware_flash_cmd(u8
*cdb
)
803 return cdb
[0] == BMIC_WRITE
&& cdb
[6] == BMIC_FLASH_FIRMWARE
;
807 * During firmware flash, the heartbeat register may not update as frequently
808 * as it should. So we dial down lockup detection during firmware flash. and
809 * dial it back up when firmware flash completes.
811 #define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ)
812 #define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ)
813 static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info
*h
,
814 struct CommandList
*c
)
816 if (!is_firmware_flash_cmd(c
->Request
.CDB
))
818 atomic_inc(&h
->firmware_flash_in_progress
);
819 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH
;
822 static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info
*h
,
823 struct CommandList
*c
)
825 if (is_firmware_flash_cmd(c
->Request
.CDB
) &&
826 atomic_dec_and_test(&h
->firmware_flash_in_progress
))
827 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL
;
830 static void enqueue_cmd_and_start_io(struct ctlr_info
*h
,
831 struct CommandList
*c
)
835 switch (c
->cmd_type
) {
837 set_ioaccel1_performant_mode(h
, c
);
840 set_ioaccel2_performant_mode(h
, c
);
843 set_performant_mode(h
, c
);
845 dial_down_lockup_detection_during_fw_flash(h
, c
);
846 spin_lock_irqsave(&h
->lock
, flags
);
850 spin_unlock_irqrestore(&h
->lock
, flags
);
853 static inline void removeQ(struct CommandList
*c
)
855 if (WARN_ON(list_empty(&c
->list
)))
857 list_del_init(&c
->list
);
860 static inline int is_hba_lunid(unsigned char scsi3addr
[])
862 return memcmp(scsi3addr
, RAID_CTLR_LUNID
, 8) == 0;
865 static inline int is_scsi_rev_5(struct ctlr_info
*h
)
867 if (!h
->hba_inquiry_data
)
869 if ((h
->hba_inquiry_data
[2] & 0x07) == 5)
874 static int hpsa_find_target_lun(struct ctlr_info
*h
,
875 unsigned char scsi3addr
[], int bus
, int *target
, int *lun
)
877 /* finds an unused bus, target, lun for a new physical device
878 * assumes h->devlock is held
881 DECLARE_BITMAP(lun_taken
, HPSA_MAX_DEVICES
);
883 bitmap_zero(lun_taken
, HPSA_MAX_DEVICES
);
885 for (i
= 0; i
< h
->ndevices
; i
++) {
886 if (h
->dev
[i
]->bus
== bus
&& h
->dev
[i
]->target
!= -1)
887 __set_bit(h
->dev
[i
]->target
, lun_taken
);
890 i
= find_first_zero_bit(lun_taken
, HPSA_MAX_DEVICES
);
891 if (i
< HPSA_MAX_DEVICES
) {
900 /* Add an entry into h->dev[] array. */
901 static int hpsa_scsi_add_entry(struct ctlr_info
*h
, int hostno
,
902 struct hpsa_scsi_dev_t
*device
,
903 struct hpsa_scsi_dev_t
*added
[], int *nadded
)
905 /* assumes h->devlock is held */
908 unsigned char addr1
[8], addr2
[8];
909 struct hpsa_scsi_dev_t
*sd
;
911 if (n
>= HPSA_MAX_DEVICES
) {
912 dev_err(&h
->pdev
->dev
, "too many devices, some will be "
917 /* physical devices do not have lun or target assigned until now. */
918 if (device
->lun
!= -1)
919 /* Logical device, lun is already assigned. */
922 /* If this device a non-zero lun of a multi-lun device
923 * byte 4 of the 8-byte LUN addr will contain the logical
924 * unit no, zero otherwise.
926 if (device
->scsi3addr
[4] == 0) {
927 /* This is not a non-zero lun of a multi-lun device */
928 if (hpsa_find_target_lun(h
, device
->scsi3addr
,
929 device
->bus
, &device
->target
, &device
->lun
) != 0)
934 /* This is a non-zero lun of a multi-lun device.
935 * Search through our list and find the device which
936 * has the same 8 byte LUN address, excepting byte 4.
937 * Assign the same bus and target for this new LUN.
938 * Use the logical unit number from the firmware.
940 memcpy(addr1
, device
->scsi3addr
, 8);
942 for (i
= 0; i
< n
; i
++) {
944 memcpy(addr2
, sd
->scsi3addr
, 8);
946 /* differ only in byte 4? */
947 if (memcmp(addr1
, addr2
, 8) == 0) {
948 device
->bus
= sd
->bus
;
949 device
->target
= sd
->target
;
950 device
->lun
= device
->scsi3addr
[4];
954 if (device
->lun
== -1) {
955 dev_warn(&h
->pdev
->dev
, "physical device with no LUN=0,"
956 " suspect firmware bug or unsupported hardware "
965 added
[*nadded
] = device
;
968 /* initially, (before registering with scsi layer) we don't
969 * know our hostno and we don't want to print anything first
970 * time anyway (the scsi layer's inquiries will show that info)
972 /* if (hostno != -1) */
973 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d added.\n",
974 scsi_device_type(device
->devtype
), hostno
,
975 device
->bus
, device
->target
, device
->lun
);
979 /* Update an entry in h->dev[] array. */
980 static void hpsa_scsi_update_entry(struct ctlr_info
*h
, int hostno
,
981 int entry
, struct hpsa_scsi_dev_t
*new_entry
)
983 /* assumes h->devlock is held */
984 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
986 /* Raid level changed. */
987 h
->dev
[entry
]->raid_level
= new_entry
->raid_level
;
989 /* Raid offload parameters changed. */
990 h
->dev
[entry
]->offload_config
= new_entry
->offload_config
;
991 h
->dev
[entry
]->offload_enabled
= new_entry
->offload_enabled
;
992 h
->dev
[entry
]->ioaccel_handle
= new_entry
->ioaccel_handle
;
993 h
->dev
[entry
]->offload_to_mirror
= new_entry
->offload_to_mirror
;
994 h
->dev
[entry
]->raid_map
= new_entry
->raid_map
;
996 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d updated.\n",
997 scsi_device_type(new_entry
->devtype
), hostno
, new_entry
->bus
,
998 new_entry
->target
, new_entry
->lun
);
1001 /* Replace an entry from h->dev[] array. */
1002 static void hpsa_scsi_replace_entry(struct ctlr_info
*h
, int hostno
,
1003 int entry
, struct hpsa_scsi_dev_t
*new_entry
,
1004 struct hpsa_scsi_dev_t
*added
[], int *nadded
,
1005 struct hpsa_scsi_dev_t
*removed
[], int *nremoved
)
1007 /* assumes h->devlock is held */
1008 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
1009 removed
[*nremoved
] = h
->dev
[entry
];
1013 * New physical devices won't have target/lun assigned yet
1014 * so we need to preserve the values in the slot we are replacing.
1016 if (new_entry
->target
== -1) {
1017 new_entry
->target
= h
->dev
[entry
]->target
;
1018 new_entry
->lun
= h
->dev
[entry
]->lun
;
1021 h
->dev
[entry
] = new_entry
;
1022 added
[*nadded
] = new_entry
;
1024 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d changed.\n",
1025 scsi_device_type(new_entry
->devtype
), hostno
, new_entry
->bus
,
1026 new_entry
->target
, new_entry
->lun
);
1029 /* Remove an entry from h->dev[] array. */
1030 static void hpsa_scsi_remove_entry(struct ctlr_info
*h
, int hostno
, int entry
,
1031 struct hpsa_scsi_dev_t
*removed
[], int *nremoved
)
1033 /* assumes h->devlock is held */
1035 struct hpsa_scsi_dev_t
*sd
;
1037 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
1040 removed
[*nremoved
] = h
->dev
[entry
];
1043 for (i
= entry
; i
< h
->ndevices
-1; i
++)
1044 h
->dev
[i
] = h
->dev
[i
+1];
1046 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d removed.\n",
1047 scsi_device_type(sd
->devtype
), hostno
, sd
->bus
, sd
->target
,
1051 #define SCSI3ADDR_EQ(a, b) ( \
1052 (a)[7] == (b)[7] && \
1053 (a)[6] == (b)[6] && \
1054 (a)[5] == (b)[5] && \
1055 (a)[4] == (b)[4] && \
1056 (a)[3] == (b)[3] && \
1057 (a)[2] == (b)[2] && \
1058 (a)[1] == (b)[1] && \
1061 static void fixup_botched_add(struct ctlr_info
*h
,
1062 struct hpsa_scsi_dev_t
*added
)
1064 /* called when scsi_add_device fails in order to re-adjust
1065 * h->dev[] to match the mid layer's view.
1067 unsigned long flags
;
1070 spin_lock_irqsave(&h
->lock
, flags
);
1071 for (i
= 0; i
< h
->ndevices
; i
++) {
1072 if (h
->dev
[i
] == added
) {
1073 for (j
= i
; j
< h
->ndevices
-1; j
++)
1074 h
->dev
[j
] = h
->dev
[j
+1];
1079 spin_unlock_irqrestore(&h
->lock
, flags
);
1083 static inline int device_is_the_same(struct hpsa_scsi_dev_t
*dev1
,
1084 struct hpsa_scsi_dev_t
*dev2
)
1086 /* we compare everything except lun and target as these
1087 * are not yet assigned. Compare parts likely
1090 if (memcmp(dev1
->scsi3addr
, dev2
->scsi3addr
,
1091 sizeof(dev1
->scsi3addr
)) != 0)
1093 if (memcmp(dev1
->device_id
, dev2
->device_id
,
1094 sizeof(dev1
->device_id
)) != 0)
1096 if (memcmp(dev1
->model
, dev2
->model
, sizeof(dev1
->model
)) != 0)
1098 if (memcmp(dev1
->vendor
, dev2
->vendor
, sizeof(dev1
->vendor
)) != 0)
1100 if (dev1
->devtype
!= dev2
->devtype
)
1102 if (dev1
->bus
!= dev2
->bus
)
1107 static inline int device_updated(struct hpsa_scsi_dev_t
*dev1
,
1108 struct hpsa_scsi_dev_t
*dev2
)
1110 /* Device attributes that can change, but don't mean
1111 * that the device is a different device, nor that the OS
1112 * needs to be told anything about the change.
1114 if (dev1
->raid_level
!= dev2
->raid_level
)
1116 if (dev1
->offload_config
!= dev2
->offload_config
)
1118 if (dev1
->offload_enabled
!= dev2
->offload_enabled
)
1123 /* Find needle in haystack. If exact match found, return DEVICE_SAME,
1124 * and return needle location in *index. If scsi3addr matches, but not
1125 * vendor, model, serial num, etc. return DEVICE_CHANGED, and return needle
1126 * location in *index.
1127 * In the case of a minor device attribute change, such as RAID level, just
1128 * return DEVICE_UPDATED, along with the updated device's location in index.
1129 * If needle not found, return DEVICE_NOT_FOUND.
1131 static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t
*needle
,
1132 struct hpsa_scsi_dev_t
*haystack
[], int haystack_size
,
1136 #define DEVICE_NOT_FOUND 0
1137 #define DEVICE_CHANGED 1
1138 #define DEVICE_SAME 2
1139 #define DEVICE_UPDATED 3
1140 for (i
= 0; i
< haystack_size
; i
++) {
1141 if (haystack
[i
] == NULL
) /* previously removed. */
1143 if (SCSI3ADDR_EQ(needle
->scsi3addr
, haystack
[i
]->scsi3addr
)) {
1145 if (device_is_the_same(needle
, haystack
[i
])) {
1146 if (device_updated(needle
, haystack
[i
]))
1147 return DEVICE_UPDATED
;
1150 /* Keep offline devices offline */
1151 if (needle
->volume_offline
)
1152 return DEVICE_NOT_FOUND
;
1153 return DEVICE_CHANGED
;
1158 return DEVICE_NOT_FOUND
;
1161 static void hpsa_monitor_offline_device(struct ctlr_info
*h
,
1162 unsigned char scsi3addr
[])
1164 struct offline_device_entry
*device
;
1165 unsigned long flags
;
1167 /* Check to see if device is already on the list */
1168 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
1169 list_for_each_entry(device
, &h
->offline_device_list
, offline_list
) {
1170 if (memcmp(device
->scsi3addr
, scsi3addr
,
1171 sizeof(device
->scsi3addr
)) == 0) {
1172 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1176 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1178 /* Device is not on the list, add it. */
1179 device
= kmalloc(sizeof(*device
), GFP_KERNEL
);
1181 dev_warn(&h
->pdev
->dev
, "out of memory in %s\n", __func__
);
1184 memcpy(device
->scsi3addr
, scsi3addr
, sizeof(device
->scsi3addr
));
1185 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
1186 list_add_tail(&device
->offline_list
, &h
->offline_device_list
);
1187 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1190 /* Print a message explaining various offline volume states */
1191 static void hpsa_show_volume_status(struct ctlr_info
*h
,
1192 struct hpsa_scsi_dev_t
*sd
)
1194 if (sd
->volume_offline
== HPSA_VPD_LV_STATUS_UNSUPPORTED
)
1195 dev_info(&h
->pdev
->dev
,
1196 "C%d:B%d:T%d:L%d Volume status is not available through vital product data pages.\n",
1197 h
->scsi_host
->host_no
,
1198 sd
->bus
, sd
->target
, sd
->lun
);
1199 switch (sd
->volume_offline
) {
1202 case HPSA_LV_UNDERGOING_ERASE
:
1203 dev_info(&h
->pdev
->dev
,
1204 "C%d:B%d:T%d:L%d Volume is undergoing background erase process.\n",
1205 h
->scsi_host
->host_no
,
1206 sd
->bus
, sd
->target
, sd
->lun
);
1208 case HPSA_LV_UNDERGOING_RPI
:
1209 dev_info(&h
->pdev
->dev
,
1210 "C%d:B%d:T%d:L%d Volume is undergoing rapid parity initialization process.\n",
1211 h
->scsi_host
->host_no
,
1212 sd
->bus
, sd
->target
, sd
->lun
);
1214 case HPSA_LV_PENDING_RPI
:
1215 dev_info(&h
->pdev
->dev
,
1216 "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n",
1217 h
->scsi_host
->host_no
,
1218 sd
->bus
, sd
->target
, sd
->lun
);
1220 case HPSA_LV_ENCRYPTED_NO_KEY
:
1221 dev_info(&h
->pdev
->dev
,
1222 "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because key is not present.\n",
1223 h
->scsi_host
->host_no
,
1224 sd
->bus
, sd
->target
, sd
->lun
);
1226 case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER
:
1227 dev_info(&h
->pdev
->dev
,
1228 "C%d:B%d:T%d:L%d Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.\n",
1229 h
->scsi_host
->host_no
,
1230 sd
->bus
, sd
->target
, sd
->lun
);
1232 case HPSA_LV_UNDERGOING_ENCRYPTION
:
1233 dev_info(&h
->pdev
->dev
,
1234 "C%d:B%d:T%d:L%d Volume is undergoing encryption process.\n",
1235 h
->scsi_host
->host_no
,
1236 sd
->bus
, sd
->target
, sd
->lun
);
1238 case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING
:
1239 dev_info(&h
->pdev
->dev
,
1240 "C%d:B%d:T%d:L%d Volume is undergoing encryption re-keying process.\n",
1241 h
->scsi_host
->host_no
,
1242 sd
->bus
, sd
->target
, sd
->lun
);
1244 case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER
:
1245 dev_info(&h
->pdev
->dev
,
1246 "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because controller does not have encryption enabled.\n",
1247 h
->scsi_host
->host_no
,
1248 sd
->bus
, sd
->target
, sd
->lun
);
1250 case HPSA_LV_PENDING_ENCRYPTION
:
1251 dev_info(&h
->pdev
->dev
,
1252 "C%d:B%d:T%d:L%d Volume is pending migration to encrypted state, but process has not started.\n",
1253 h
->scsi_host
->host_no
,
1254 sd
->bus
, sd
->target
, sd
->lun
);
1256 case HPSA_LV_PENDING_ENCRYPTION_REKEYING
:
1257 dev_info(&h
->pdev
->dev
,
1258 "C%d:B%d:T%d:L%d Volume is encrypted and is pending encryption rekeying.\n",
1259 h
->scsi_host
->host_no
,
1260 sd
->bus
, sd
->target
, sd
->lun
);
1265 static void adjust_hpsa_scsi_table(struct ctlr_info
*h
, int hostno
,
1266 struct hpsa_scsi_dev_t
*sd
[], int nsds
)
1268 /* sd contains scsi3 addresses and devtypes, and inquiry
1269 * data. This function takes what's in sd to be the current
1270 * reality and updates h->dev[] to reflect that reality.
1272 int i
, entry
, device_change
, changes
= 0;
1273 struct hpsa_scsi_dev_t
*csd
;
1274 unsigned long flags
;
1275 struct hpsa_scsi_dev_t
**added
, **removed
;
1276 int nadded
, nremoved
;
1277 struct Scsi_Host
*sh
= NULL
;
1279 added
= kzalloc(sizeof(*added
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
1280 removed
= kzalloc(sizeof(*removed
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
1282 if (!added
|| !removed
) {
1283 dev_warn(&h
->pdev
->dev
, "out of memory in "
1284 "adjust_hpsa_scsi_table\n");
1288 spin_lock_irqsave(&h
->devlock
, flags
);
1290 /* find any devices in h->dev[] that are not in
1291 * sd[] and remove them from h->dev[], and for any
1292 * devices which have changed, remove the old device
1293 * info and add the new device info.
1294 * If minor device attributes change, just update
1295 * the existing device structure.
1300 while (i
< h
->ndevices
) {
1302 device_change
= hpsa_scsi_find_entry(csd
, sd
, nsds
, &entry
);
1303 if (device_change
== DEVICE_NOT_FOUND
) {
1305 hpsa_scsi_remove_entry(h
, hostno
, i
,
1306 removed
, &nremoved
);
1307 continue; /* remove ^^^, hence i not incremented */
1308 } else if (device_change
== DEVICE_CHANGED
) {
1310 hpsa_scsi_replace_entry(h
, hostno
, i
, sd
[entry
],
1311 added
, &nadded
, removed
, &nremoved
);
1312 /* Set it to NULL to prevent it from being freed
1313 * at the bottom of hpsa_update_scsi_devices()
1316 } else if (device_change
== DEVICE_UPDATED
) {
1317 hpsa_scsi_update_entry(h
, hostno
, i
, sd
[entry
]);
1322 /* Now, make sure every device listed in sd[] is also
1323 * listed in h->dev[], adding them if they aren't found
1326 for (i
= 0; i
< nsds
; i
++) {
1327 if (!sd
[i
]) /* if already added above. */
1330 /* Don't add devices which are NOT READY, FORMAT IN PROGRESS
1331 * as the SCSI mid-layer does not handle such devices well.
1332 * It relentlessly loops sending TUR at 3Hz, then READ(10)
1333 * at 160Hz, and prevents the system from coming up.
1335 if (sd
[i
]->volume_offline
) {
1336 hpsa_show_volume_status(h
, sd
[i
]);
1337 dev_info(&h
->pdev
->dev
, "c%db%dt%dl%d: temporarily offline\n",
1338 h
->scsi_host
->host_no
,
1339 sd
[i
]->bus
, sd
[i
]->target
, sd
[i
]->lun
);
1343 device_change
= hpsa_scsi_find_entry(sd
[i
], h
->dev
,
1344 h
->ndevices
, &entry
);
1345 if (device_change
== DEVICE_NOT_FOUND
) {
1347 if (hpsa_scsi_add_entry(h
, hostno
, sd
[i
],
1348 added
, &nadded
) != 0)
1350 sd
[i
] = NULL
; /* prevent from being freed later. */
1351 } else if (device_change
== DEVICE_CHANGED
) {
1352 /* should never happen... */
1354 dev_warn(&h
->pdev
->dev
,
1355 "device unexpectedly changed.\n");
1356 /* but if it does happen, we just ignore that device */
1359 spin_unlock_irqrestore(&h
->devlock
, flags
);
1361 /* Monitor devices which are in one of several NOT READY states to be
1362 * brought online later. This must be done without holding h->devlock,
1363 * so don't touch h->dev[]
1365 for (i
= 0; i
< nsds
; i
++) {
1366 if (!sd
[i
]) /* if already added above. */
1368 if (sd
[i
]->volume_offline
)
1369 hpsa_monitor_offline_device(h
, sd
[i
]->scsi3addr
);
1372 /* Don't notify scsi mid layer of any changes the first time through
1373 * (or if there are no changes) scsi_scan_host will do it later the
1374 * first time through.
1376 if (hostno
== -1 || !changes
)
1380 /* Notify scsi mid layer of any removed devices */
1381 for (i
= 0; i
< nremoved
; i
++) {
1382 struct scsi_device
*sdev
=
1383 scsi_device_lookup(sh
, removed
[i
]->bus
,
1384 removed
[i
]->target
, removed
[i
]->lun
);
1386 scsi_remove_device(sdev
);
1387 scsi_device_put(sdev
);
1389 /* We don't expect to get here.
1390 * future cmds to this device will get selection
1391 * timeout as if the device was gone.
1393 dev_warn(&h
->pdev
->dev
, "didn't find c%db%dt%dl%d "
1394 " for removal.", hostno
, removed
[i
]->bus
,
1395 removed
[i
]->target
, removed
[i
]->lun
);
1401 /* Notify scsi mid layer of any added devices */
1402 for (i
= 0; i
< nadded
; i
++) {
1403 if (scsi_add_device(sh
, added
[i
]->bus
,
1404 added
[i
]->target
, added
[i
]->lun
) == 0)
1406 dev_warn(&h
->pdev
->dev
, "scsi_add_device c%db%dt%dl%d failed, "
1407 "device not added.\n", hostno
, added
[i
]->bus
,
1408 added
[i
]->target
, added
[i
]->lun
);
1409 /* now we have to remove it from h->dev,
1410 * since it didn't get added to scsi mid layer
1412 fixup_botched_add(h
, added
[i
]);
1421 * Lookup bus/target/lun and return corresponding struct hpsa_scsi_dev_t *
1422 * Assume's h->devlock is held.
1424 static struct hpsa_scsi_dev_t
*lookup_hpsa_scsi_dev(struct ctlr_info
*h
,
1425 int bus
, int target
, int lun
)
1428 struct hpsa_scsi_dev_t
*sd
;
1430 for (i
= 0; i
< h
->ndevices
; i
++) {
1432 if (sd
->bus
== bus
&& sd
->target
== target
&& sd
->lun
== lun
)
1438 /* link sdev->hostdata to our per-device structure. */
1439 static int hpsa_slave_alloc(struct scsi_device
*sdev
)
1441 struct hpsa_scsi_dev_t
*sd
;
1442 unsigned long flags
;
1443 struct ctlr_info
*h
;
1445 h
= sdev_to_hba(sdev
);
1446 spin_lock_irqsave(&h
->devlock
, flags
);
1447 sd
= lookup_hpsa_scsi_dev(h
, sdev_channel(sdev
),
1448 sdev_id(sdev
), sdev
->lun
);
1450 sdev
->hostdata
= sd
;
1451 spin_unlock_irqrestore(&h
->devlock
, flags
);
1455 static void hpsa_slave_destroy(struct scsi_device
*sdev
)
1457 /* nothing to do. */
1460 static void hpsa_free_sg_chain_blocks(struct ctlr_info
*h
)
1464 if (!h
->cmd_sg_list
)
1466 for (i
= 0; i
< h
->nr_cmds
; i
++) {
1467 kfree(h
->cmd_sg_list
[i
]);
1468 h
->cmd_sg_list
[i
] = NULL
;
1470 kfree(h
->cmd_sg_list
);
1471 h
->cmd_sg_list
= NULL
;
1474 static int hpsa_allocate_sg_chain_blocks(struct ctlr_info
*h
)
1478 if (h
->chainsize
<= 0)
1481 h
->cmd_sg_list
= kzalloc(sizeof(*h
->cmd_sg_list
) * h
->nr_cmds
,
1483 if (!h
->cmd_sg_list
)
1485 for (i
= 0; i
< h
->nr_cmds
; i
++) {
1486 h
->cmd_sg_list
[i
] = kmalloc(sizeof(*h
->cmd_sg_list
[i
]) *
1487 h
->chainsize
, GFP_KERNEL
);
1488 if (!h
->cmd_sg_list
[i
])
1494 hpsa_free_sg_chain_blocks(h
);
1498 static int hpsa_map_sg_chain_block(struct ctlr_info
*h
,
1499 struct CommandList
*c
)
1501 struct SGDescriptor
*chain_sg
, *chain_block
;
1505 chain_sg
= &c
->SG
[h
->max_cmd_sg_entries
- 1];
1506 chain_block
= h
->cmd_sg_list
[c
->cmdindex
];
1507 chain_sg
->Ext
= cpu_to_le32(HPSA_SG_CHAIN
);
1508 chain_len
= sizeof(*chain_sg
) *
1509 (le16_to_cpu(c
->Header
.SGTotal
) - h
->max_cmd_sg_entries
);
1510 chain_sg
->Len
= cpu_to_le32(chain_len
);
1511 temp64
= pci_map_single(h
->pdev
, chain_block
, chain_len
,
1513 if (dma_mapping_error(&h
->pdev
->dev
, temp64
)) {
1514 /* prevent subsequent unmapping */
1515 chain_sg
->Addr
= cpu_to_le64(0);
1518 chain_sg
->Addr
= cpu_to_le64(temp64
);
1522 static void hpsa_unmap_sg_chain_block(struct ctlr_info
*h
,
1523 struct CommandList
*c
)
1525 struct SGDescriptor
*chain_sg
;
1527 if (le16_to_cpu(c
->Header
.SGTotal
) <= h
->max_cmd_sg_entries
)
1530 chain_sg
= &c
->SG
[h
->max_cmd_sg_entries
- 1];
1531 pci_unmap_single(h
->pdev
, le64_to_cpu(chain_sg
->Addr
),
1532 le32_to_cpu(chain_sg
->Len
), PCI_DMA_TODEVICE
);
1536 /* Decode the various types of errors on ioaccel2 path.
1537 * Return 1 for any error that should generate a RAID path retry.
1538 * Return 0 for errors that don't require a RAID path retry.
1540 static int handle_ioaccel_mode2_error(struct ctlr_info
*h
,
1541 struct CommandList
*c
,
1542 struct scsi_cmnd
*cmd
,
1543 struct io_accel2_cmd
*c2
)
1548 switch (c2
->error_data
.serv_response
) {
1549 case IOACCEL2_SERV_RESPONSE_COMPLETE
:
1550 switch (c2
->error_data
.status
) {
1551 case IOACCEL2_STATUS_SR_TASK_COMP_GOOD
:
1553 case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND
:
1554 dev_warn(&h
->pdev
->dev
,
1555 "%s: task complete with check condition.\n",
1556 "HP SSD Smart Path");
1557 cmd
->result
|= SAM_STAT_CHECK_CONDITION
;
1558 if (c2
->error_data
.data_present
!=
1559 IOACCEL2_SENSE_DATA_PRESENT
) {
1560 memset(cmd
->sense_buffer
, 0,
1561 SCSI_SENSE_BUFFERSIZE
);
1564 /* copy the sense data */
1565 data_len
= c2
->error_data
.sense_data_len
;
1566 if (data_len
> SCSI_SENSE_BUFFERSIZE
)
1567 data_len
= SCSI_SENSE_BUFFERSIZE
;
1568 if (data_len
> sizeof(c2
->error_data
.sense_data_buff
))
1570 sizeof(c2
->error_data
.sense_data_buff
);
1571 memcpy(cmd
->sense_buffer
,
1572 c2
->error_data
.sense_data_buff
, data_len
);
1575 case IOACCEL2_STATUS_SR_TASK_COMP_BUSY
:
1576 dev_warn(&h
->pdev
->dev
,
1577 "%s: task complete with BUSY status.\n",
1578 "HP SSD Smart Path");
1581 case IOACCEL2_STATUS_SR_TASK_COMP_RES_CON
:
1582 dev_warn(&h
->pdev
->dev
,
1583 "%s: task complete with reservation conflict.\n",
1584 "HP SSD Smart Path");
1587 case IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL
:
1588 /* Make scsi midlayer do unlimited retries */
1589 cmd
->result
= DID_IMM_RETRY
<< 16;
1591 case IOACCEL2_STATUS_SR_TASK_COMP_ABORTED
:
1592 dev_warn(&h
->pdev
->dev
,
1593 "%s: task complete with aborted status.\n",
1594 "HP SSD Smart Path");
1598 dev_warn(&h
->pdev
->dev
,
1599 "%s: task complete with unrecognized status: 0x%02x\n",
1600 "HP SSD Smart Path", c2
->error_data
.status
);
1605 case IOACCEL2_SERV_RESPONSE_FAILURE
:
1606 /* don't expect to get here. */
1607 dev_warn(&h
->pdev
->dev
,
1608 "unexpected delivery or target failure, status = 0x%02x\n",
1609 c2
->error_data
.status
);
1612 case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE
:
1614 case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS
:
1616 case IOACCEL2_SERV_RESPONSE_TMF_REJECTED
:
1617 dev_warn(&h
->pdev
->dev
, "task management function rejected.\n");
1620 case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN
:
1621 dev_warn(&h
->pdev
->dev
, "task management function invalid LUN\n");
1624 dev_warn(&h
->pdev
->dev
,
1625 "%s: Unrecognized server response: 0x%02x\n",
1626 "HP SSD Smart Path",
1627 c2
->error_data
.serv_response
);
1632 return retry
; /* retry on raid path? */
1635 static void process_ioaccel2_completion(struct ctlr_info
*h
,
1636 struct CommandList
*c
, struct scsi_cmnd
*cmd
,
1637 struct hpsa_scsi_dev_t
*dev
)
1639 struct io_accel2_cmd
*c2
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
1642 /* check for good status */
1643 if (likely(c2
->error_data
.serv_response
== 0 &&
1644 c2
->error_data
.status
== 0)) {
1646 cmd
->scsi_done(cmd
);
1650 /* Any RAID offload error results in retry which will use
1651 * the normal I/O path so the controller can handle whatever's
1654 if (is_logical_dev_addr_mode(dev
->scsi3addr
) &&
1655 c2
->error_data
.serv_response
==
1656 IOACCEL2_SERV_RESPONSE_FAILURE
) {
1657 dev
->offload_enabled
= 0;
1658 h
->drv_req_rescan
= 1; /* schedule controller for a rescan */
1659 cmd
->result
= DID_SOFT_ERROR
<< 16;
1661 cmd
->scsi_done(cmd
);
1664 raid_retry
= handle_ioaccel_mode2_error(h
, c
, cmd
, c2
);
1665 /* If error found, disable Smart Path, schedule a rescan,
1666 * and force a retry on the standard path.
1669 dev_warn(&h
->pdev
->dev
, "%s: Retrying on standard path.\n",
1670 "HP SSD Smart Path");
1671 dev
->offload_enabled
= 0; /* Disable Smart Path */
1672 h
->drv_req_rescan
= 1; /* schedule controller rescan */
1673 cmd
->result
= DID_SOFT_ERROR
<< 16;
1676 cmd
->scsi_done(cmd
);
1679 static void complete_scsi_command(struct CommandList
*cp
)
1681 struct scsi_cmnd
*cmd
;
1682 struct ctlr_info
*h
;
1683 struct ErrorInfo
*ei
;
1684 struct hpsa_scsi_dev_t
*dev
;
1686 unsigned char sense_key
;
1687 unsigned char asc
; /* additional sense code */
1688 unsigned char ascq
; /* additional sense code qualifier */
1689 unsigned long sense_data_size
;
1692 cmd
= (struct scsi_cmnd
*) cp
->scsi_cmd
;
1694 dev
= cmd
->device
->hostdata
;
1696 scsi_dma_unmap(cmd
); /* undo the DMA mappings */
1697 if ((cp
->cmd_type
== CMD_SCSI
) &&
1698 (le16_to_cpu(cp
->Header
.SGTotal
) > h
->max_cmd_sg_entries
))
1699 hpsa_unmap_sg_chain_block(h
, cp
);
1701 cmd
->result
= (DID_OK
<< 16); /* host byte */
1702 cmd
->result
|= (COMMAND_COMPLETE
<< 8); /* msg byte */
1704 if (cp
->cmd_type
== CMD_IOACCEL2
)
1705 return process_ioaccel2_completion(h
, cp
, cmd
, dev
);
1707 cmd
->result
|= ei
->ScsiStatus
;
1709 scsi_set_resid(cmd
, ei
->ResidualCnt
);
1710 if (ei
->CommandStatus
== 0) {
1712 cmd
->scsi_done(cmd
);
1716 /* copy the sense data */
1717 if (SCSI_SENSE_BUFFERSIZE
< sizeof(ei
->SenseInfo
))
1718 sense_data_size
= SCSI_SENSE_BUFFERSIZE
;
1720 sense_data_size
= sizeof(ei
->SenseInfo
);
1721 if (ei
->SenseLen
< sense_data_size
)
1722 sense_data_size
= ei
->SenseLen
;
1724 memcpy(cmd
->sense_buffer
, ei
->SenseInfo
, sense_data_size
);
1726 /* For I/O accelerator commands, copy over some fields to the normal
1727 * CISS header used below for error handling.
1729 if (cp
->cmd_type
== CMD_IOACCEL1
) {
1730 struct io_accel1_cmd
*c
= &h
->ioaccel_cmd_pool
[cp
->cmdindex
];
1731 cp
->Header
.SGList
= scsi_sg_count(cmd
);
1732 cp
->Header
.SGTotal
= cpu_to_le16(cp
->Header
.SGList
);
1733 cp
->Request
.CDBLen
= le16_to_cpu(c
->io_flags
) &
1734 IOACCEL1_IOFLAGS_CDBLEN_MASK
;
1735 cp
->Header
.tag
= c
->tag
;
1736 memcpy(cp
->Header
.LUN
.LunAddrBytes
, c
->CISS_LUN
, 8);
1737 memcpy(cp
->Request
.CDB
, c
->CDB
, cp
->Request
.CDBLen
);
1739 /* Any RAID offload error results in retry which will use
1740 * the normal I/O path so the controller can handle whatever's
1743 if (is_logical_dev_addr_mode(dev
->scsi3addr
)) {
1744 if (ei
->CommandStatus
== CMD_IOACCEL_DISABLED
)
1745 dev
->offload_enabled
= 0;
1746 cmd
->result
= DID_SOFT_ERROR
<< 16;
1748 cmd
->scsi_done(cmd
);
1753 /* an error has occurred */
1754 switch (ei
->CommandStatus
) {
1756 case CMD_TARGET_STATUS
:
1757 if (ei
->ScsiStatus
) {
1759 sense_key
= 0xf & ei
->SenseInfo
[2];
1760 /* Get additional sense code */
1761 asc
= ei
->SenseInfo
[12];
1762 /* Get addition sense code qualifier */
1763 ascq
= ei
->SenseInfo
[13];
1765 if (ei
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
) {
1766 if (sense_key
== ABORTED_COMMAND
) {
1767 cmd
->result
|= DID_SOFT_ERROR
<< 16;
1772 /* Problem was not a check condition
1773 * Pass it up to the upper layers...
1775 if (ei
->ScsiStatus
) {
1776 dev_warn(&h
->pdev
->dev
, "cp %p has status 0x%x "
1777 "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
1778 "Returning result: 0x%x\n",
1780 sense_key
, asc
, ascq
,
1782 } else { /* scsi status is zero??? How??? */
1783 dev_warn(&h
->pdev
->dev
, "cp %p SCSI status was 0. "
1784 "Returning no connection.\n", cp
),
1786 /* Ordinarily, this case should never happen,
1787 * but there is a bug in some released firmware
1788 * revisions that allows it to happen if, for
1789 * example, a 4100 backplane loses power and
1790 * the tape drive is in it. We assume that
1791 * it's a fatal error of some kind because we
1792 * can't show that it wasn't. We will make it
1793 * look like selection timeout since that is
1794 * the most common reason for this to occur,
1795 * and it's severe enough.
1798 cmd
->result
= DID_NO_CONNECT
<< 16;
1802 case CMD_DATA_UNDERRUN
: /* let mid layer handle it. */
1804 case CMD_DATA_OVERRUN
:
1805 dev_warn(&h
->pdev
->dev
, "cp %p has"
1806 " completed with data overrun "
1810 /* print_bytes(cp, sizeof(*cp), 1, 0);
1812 /* We get CMD_INVALID if you address a non-existent device
1813 * instead of a selection timeout (no response). You will
1814 * see this if you yank out a drive, then try to access it.
1815 * This is kind of a shame because it means that any other
1816 * CMD_INVALID (e.g. driver bug) will get interpreted as a
1817 * missing target. */
1818 cmd
->result
= DID_NO_CONNECT
<< 16;
1821 case CMD_PROTOCOL_ERR
:
1822 cmd
->result
= DID_ERROR
<< 16;
1823 dev_warn(&h
->pdev
->dev
, "cp %p has "
1824 "protocol error\n", cp
);
1826 case CMD_HARDWARE_ERR
:
1827 cmd
->result
= DID_ERROR
<< 16;
1828 dev_warn(&h
->pdev
->dev
, "cp %p had hardware error\n", cp
);
1830 case CMD_CONNECTION_LOST
:
1831 cmd
->result
= DID_ERROR
<< 16;
1832 dev_warn(&h
->pdev
->dev
, "cp %p had connection lost\n", cp
);
1835 cmd
->result
= DID_ABORT
<< 16;
1836 dev_warn(&h
->pdev
->dev
, "cp %p was aborted with status 0x%x\n",
1837 cp
, ei
->ScsiStatus
);
1839 case CMD_ABORT_FAILED
:
1840 cmd
->result
= DID_ERROR
<< 16;
1841 dev_warn(&h
->pdev
->dev
, "cp %p reports abort failed\n", cp
);
1843 case CMD_UNSOLICITED_ABORT
:
1844 cmd
->result
= DID_SOFT_ERROR
<< 16; /* retry the command */
1845 dev_warn(&h
->pdev
->dev
, "cp %p aborted due to an unsolicited "
1849 cmd
->result
= DID_TIME_OUT
<< 16;
1850 dev_warn(&h
->pdev
->dev
, "cp %p timedout\n", cp
);
1852 case CMD_UNABORTABLE
:
1853 cmd
->result
= DID_ERROR
<< 16;
1854 dev_warn(&h
->pdev
->dev
, "Command unabortable\n");
1856 case CMD_IOACCEL_DISABLED
:
1857 /* This only handles the direct pass-through case since RAID
1858 * offload is handled above. Just attempt a retry.
1860 cmd
->result
= DID_SOFT_ERROR
<< 16;
1861 dev_warn(&h
->pdev
->dev
,
1862 "cp %p had HP SSD Smart Path error\n", cp
);
1865 cmd
->result
= DID_ERROR
<< 16;
1866 dev_warn(&h
->pdev
->dev
, "cp %p returned unknown status %x\n",
1867 cp
, ei
->CommandStatus
);
1870 cmd
->scsi_done(cmd
);
1873 static void hpsa_pci_unmap(struct pci_dev
*pdev
,
1874 struct CommandList
*c
, int sg_used
, int data_direction
)
1878 for (i
= 0; i
< sg_used
; i
++)
1879 pci_unmap_single(pdev
, (dma_addr_t
) le64_to_cpu(c
->SG
[i
].Addr
),
1880 le32_to_cpu(c
->SG
[i
].Len
),
1884 static int hpsa_map_one(struct pci_dev
*pdev
,
1885 struct CommandList
*cp
,
1892 if (buflen
== 0 || data_direction
== PCI_DMA_NONE
) {
1893 cp
->Header
.SGList
= 0;
1894 cp
->Header
.SGTotal
= cpu_to_le16(0);
1898 addr64
= pci_map_single(pdev
, buf
, buflen
, data_direction
);
1899 if (dma_mapping_error(&pdev
->dev
, addr64
)) {
1900 /* Prevent subsequent unmap of something never mapped */
1901 cp
->Header
.SGList
= 0;
1902 cp
->Header
.SGTotal
= cpu_to_le16(0);
1905 cp
->SG
[0].Addr
= cpu_to_le64(addr64
);
1906 cp
->SG
[0].Len
= cpu_to_le32(buflen
);
1907 cp
->SG
[0].Ext
= cpu_to_le32(HPSA_SG_LAST
); /* we are not chaining */
1908 cp
->Header
.SGList
= 1; /* no. SGs contig in this cmd */
1909 cp
->Header
.SGTotal
= cpu_to_le16(1); /* total sgs in cmd list */
1913 static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info
*h
,
1914 struct CommandList
*c
)
1916 DECLARE_COMPLETION_ONSTACK(wait
);
1919 enqueue_cmd_and_start_io(h
, c
);
1920 wait_for_completion(&wait
);
1923 static u32
lockup_detected(struct ctlr_info
*h
)
1926 u32 rc
, *lockup_detected
;
1929 lockup_detected
= per_cpu_ptr(h
->lockup_detected
, cpu
);
1930 rc
= *lockup_detected
;
1935 static void hpsa_scsi_do_simple_cmd_core_if_no_lockup(struct ctlr_info
*h
,
1936 struct CommandList
*c
)
1938 /* If controller lockup detected, fake a hardware error. */
1939 if (unlikely(lockup_detected(h
)))
1940 c
->err_info
->CommandStatus
= CMD_HARDWARE_ERR
;
1942 hpsa_scsi_do_simple_cmd_core(h
, c
);
1945 #define MAX_DRIVER_CMD_RETRIES 25
1946 static void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info
*h
,
1947 struct CommandList
*c
, int data_direction
)
1949 int backoff_time
= 10, retry_count
= 0;
1952 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
1953 hpsa_scsi_do_simple_cmd_core(h
, c
);
1955 if (retry_count
> 3) {
1956 msleep(backoff_time
);
1957 if (backoff_time
< 1000)
1960 } while ((check_for_unit_attention(h
, c
) ||
1961 check_for_busy(h
, c
)) &&
1962 retry_count
<= MAX_DRIVER_CMD_RETRIES
);
1963 hpsa_pci_unmap(h
->pdev
, c
, 1, data_direction
);
1966 static void hpsa_print_cmd(struct ctlr_info
*h
, char *txt
,
1967 struct CommandList
*c
)
1969 const u8
*cdb
= c
->Request
.CDB
;
1970 const u8
*lun
= c
->Header
.LUN
.LunAddrBytes
;
1972 dev_warn(&h
->pdev
->dev
, "%s: LUN:%02x%02x%02x%02x%02x%02x%02x%02x"
1973 " CDB:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
1974 txt
, lun
[0], lun
[1], lun
[2], lun
[3],
1975 lun
[4], lun
[5], lun
[6], lun
[7],
1976 cdb
[0], cdb
[1], cdb
[2], cdb
[3],
1977 cdb
[4], cdb
[5], cdb
[6], cdb
[7],
1978 cdb
[8], cdb
[9], cdb
[10], cdb
[11],
1979 cdb
[12], cdb
[13], cdb
[14], cdb
[15]);
1982 static void hpsa_scsi_interpret_error(struct ctlr_info
*h
,
1983 struct CommandList
*cp
)
1985 const struct ErrorInfo
*ei
= cp
->err_info
;
1986 struct device
*d
= &cp
->h
->pdev
->dev
;
1987 const u8
*sd
= ei
->SenseInfo
;
1989 switch (ei
->CommandStatus
) {
1990 case CMD_TARGET_STATUS
:
1991 hpsa_print_cmd(h
, "SCSI status", cp
);
1992 if (ei
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
)
1993 dev_warn(d
, "SCSI Status = 02, Sense key = %02x, ASC = %02x, ASCQ = %02x\n",
1994 sd
[2] & 0x0f, sd
[12], sd
[13]);
1996 dev_warn(d
, "SCSI Status = %02x\n", ei
->ScsiStatus
);
1997 if (ei
->ScsiStatus
== 0)
1998 dev_warn(d
, "SCSI status is abnormally zero. "
1999 "(probably indicates selection timeout "
2000 "reported incorrectly due to a known "
2001 "firmware bug, circa July, 2001.)\n");
2003 case CMD_DATA_UNDERRUN
: /* let mid layer handle it. */
2005 case CMD_DATA_OVERRUN
:
2006 hpsa_print_cmd(h
, "overrun condition", cp
);
2009 /* controller unfortunately reports SCSI passthru's
2010 * to non-existent targets as invalid commands.
2012 hpsa_print_cmd(h
, "invalid command", cp
);
2013 dev_warn(d
, "probably means device no longer present\n");
2016 case CMD_PROTOCOL_ERR
:
2017 hpsa_print_cmd(h
, "protocol error", cp
);
2019 case CMD_HARDWARE_ERR
:
2020 hpsa_print_cmd(h
, "hardware error", cp
);
2022 case CMD_CONNECTION_LOST
:
2023 hpsa_print_cmd(h
, "connection lost", cp
);
2026 hpsa_print_cmd(h
, "aborted", cp
);
2028 case CMD_ABORT_FAILED
:
2029 hpsa_print_cmd(h
, "abort failed", cp
);
2031 case CMD_UNSOLICITED_ABORT
:
2032 hpsa_print_cmd(h
, "unsolicited abort", cp
);
2035 hpsa_print_cmd(h
, "timed out", cp
);
2037 case CMD_UNABORTABLE
:
2038 hpsa_print_cmd(h
, "unabortable", cp
);
2041 hpsa_print_cmd(h
, "unknown status", cp
);
2042 dev_warn(d
, "Unknown command status %x\n",
2047 static int hpsa_scsi_do_inquiry(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2048 u16 page
, unsigned char *buf
,
2049 unsigned char bufsize
)
2052 struct CommandList
*c
;
2053 struct ErrorInfo
*ei
;
2055 c
= cmd_special_alloc(h
);
2057 if (c
== NULL
) { /* trouble... */
2058 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2062 if (fill_cmd(c
, HPSA_INQUIRY
, h
, buf
, bufsize
,
2063 page
, scsi3addr
, TYPE_CMD
)) {
2067 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2069 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2070 hpsa_scsi_interpret_error(h
, c
);
2074 cmd_special_free(h
, c
);
2078 static int hpsa_bmic_ctrl_mode_sense(struct ctlr_info
*h
,
2079 unsigned char *scsi3addr
, unsigned char page
,
2080 struct bmic_controller_parameters
*buf
, size_t bufsize
)
2083 struct CommandList
*c
;
2084 struct ErrorInfo
*ei
;
2086 c
= cmd_special_alloc(h
);
2088 if (c
== NULL
) { /* trouble... */
2089 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2093 if (fill_cmd(c
, BMIC_SENSE_CONTROLLER_PARAMETERS
, h
, buf
, bufsize
,
2094 page
, scsi3addr
, TYPE_CMD
)) {
2098 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2100 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2101 hpsa_scsi_interpret_error(h
, c
);
2105 cmd_special_free(h
, c
);
2109 static int hpsa_send_reset(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2113 struct CommandList
*c
;
2114 struct ErrorInfo
*ei
;
2116 c
= cmd_special_alloc(h
);
2118 if (c
== NULL
) { /* trouble... */
2119 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2123 /* fill_cmd can't fail here, no data buffer to map. */
2124 (void) fill_cmd(c
, HPSA_DEVICE_RESET_MSG
, h
, NULL
, 0, 0,
2125 scsi3addr
, TYPE_MSG
);
2126 c
->Request
.CDB
[1] = reset_type
; /* fill_cmd defaults to LUN reset */
2127 hpsa_scsi_do_simple_cmd_core(h
, c
);
2128 /* no unmap needed here because no data xfer. */
2131 if (ei
->CommandStatus
!= 0) {
2132 hpsa_scsi_interpret_error(h
, c
);
2135 cmd_special_free(h
, c
);
2139 static void hpsa_get_raid_level(struct ctlr_info
*h
,
2140 unsigned char *scsi3addr
, unsigned char *raid_level
)
2145 *raid_level
= RAID_UNKNOWN
;
2146 buf
= kzalloc(64, GFP_KERNEL
);
2149 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| 0xC1, buf
, 64);
2151 *raid_level
= buf
[8];
2152 if (*raid_level
> RAID_UNKNOWN
)
2153 *raid_level
= RAID_UNKNOWN
;
2158 #define HPSA_MAP_DEBUG
2159 #ifdef HPSA_MAP_DEBUG
2160 static void hpsa_debug_map_buff(struct ctlr_info
*h
, int rc
,
2161 struct raid_map_data
*map_buff
)
2163 struct raid_map_disk_data
*dd
= &map_buff
->data
[0];
2165 u16 map_cnt
, row_cnt
, disks_per_row
;
2170 /* Show details only if debugging has been activated. */
2171 if (h
->raid_offload_debug
< 2)
2174 dev_info(&h
->pdev
->dev
, "structure_size = %u\n",
2175 le32_to_cpu(map_buff
->structure_size
));
2176 dev_info(&h
->pdev
->dev
, "volume_blk_size = %u\n",
2177 le32_to_cpu(map_buff
->volume_blk_size
));
2178 dev_info(&h
->pdev
->dev
, "volume_blk_cnt = 0x%llx\n",
2179 le64_to_cpu(map_buff
->volume_blk_cnt
));
2180 dev_info(&h
->pdev
->dev
, "physicalBlockShift = %u\n",
2181 map_buff
->phys_blk_shift
);
2182 dev_info(&h
->pdev
->dev
, "parity_rotation_shift = %u\n",
2183 map_buff
->parity_rotation_shift
);
2184 dev_info(&h
->pdev
->dev
, "strip_size = %u\n",
2185 le16_to_cpu(map_buff
->strip_size
));
2186 dev_info(&h
->pdev
->dev
, "disk_starting_blk = 0x%llx\n",
2187 le64_to_cpu(map_buff
->disk_starting_blk
));
2188 dev_info(&h
->pdev
->dev
, "disk_blk_cnt = 0x%llx\n",
2189 le64_to_cpu(map_buff
->disk_blk_cnt
));
2190 dev_info(&h
->pdev
->dev
, "data_disks_per_row = %u\n",
2191 le16_to_cpu(map_buff
->data_disks_per_row
));
2192 dev_info(&h
->pdev
->dev
, "metadata_disks_per_row = %u\n",
2193 le16_to_cpu(map_buff
->metadata_disks_per_row
));
2194 dev_info(&h
->pdev
->dev
, "row_cnt = %u\n",
2195 le16_to_cpu(map_buff
->row_cnt
));
2196 dev_info(&h
->pdev
->dev
, "layout_map_count = %u\n",
2197 le16_to_cpu(map_buff
->layout_map_count
));
2198 dev_info(&h
->pdev
->dev
, "flags = 0x%x\n",
2199 le16_to_cpu(map_buff
->flags
));
2200 dev_info(&h
->pdev
->dev
, "encrypytion = %s\n",
2201 le16_to_cpu(map_buff
->flags
) &
2202 RAID_MAP_FLAG_ENCRYPT_ON
? "ON" : "OFF");
2203 dev_info(&h
->pdev
->dev
, "dekindex = %u\n",
2204 le16_to_cpu(map_buff
->dekindex
));
2205 map_cnt
= le16_to_cpu(map_buff
->layout_map_count
);
2206 for (map
= 0; map
< map_cnt
; map
++) {
2207 dev_info(&h
->pdev
->dev
, "Map%u:\n", map
);
2208 row_cnt
= le16_to_cpu(map_buff
->row_cnt
);
2209 for (row
= 0; row
< row_cnt
; row
++) {
2210 dev_info(&h
->pdev
->dev
, " Row%u:\n", row
);
2212 le16_to_cpu(map_buff
->data_disks_per_row
);
2213 for (col
= 0; col
< disks_per_row
; col
++, dd
++)
2214 dev_info(&h
->pdev
->dev
,
2215 " D%02u: h=0x%04x xor=%u,%u\n",
2216 col
, dd
->ioaccel_handle
,
2217 dd
->xor_mult
[0], dd
->xor_mult
[1]);
2219 le16_to_cpu(map_buff
->metadata_disks_per_row
);
2220 for (col
= 0; col
< disks_per_row
; col
++, dd
++)
2221 dev_info(&h
->pdev
->dev
,
2222 " M%02u: h=0x%04x xor=%u,%u\n",
2223 col
, dd
->ioaccel_handle
,
2224 dd
->xor_mult
[0], dd
->xor_mult
[1]);
2229 static void hpsa_debug_map_buff(__attribute__((unused
)) struct ctlr_info
*h
,
2230 __attribute__((unused
)) int rc
,
2231 __attribute__((unused
)) struct raid_map_data
*map_buff
)
2236 static int hpsa_get_raid_map(struct ctlr_info
*h
,
2237 unsigned char *scsi3addr
, struct hpsa_scsi_dev_t
*this_device
)
2240 struct CommandList
*c
;
2241 struct ErrorInfo
*ei
;
2243 c
= cmd_special_alloc(h
);
2245 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2248 if (fill_cmd(c
, HPSA_GET_RAID_MAP
, h
, &this_device
->raid_map
,
2249 sizeof(this_device
->raid_map
), 0,
2250 scsi3addr
, TYPE_CMD
)) {
2251 dev_warn(&h
->pdev
->dev
, "Out of memory in hpsa_get_raid_map()\n");
2252 cmd_special_free(h
, c
);
2255 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2257 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2258 hpsa_scsi_interpret_error(h
, c
);
2259 cmd_special_free(h
, c
);
2262 cmd_special_free(h
, c
);
2264 /* @todo in the future, dynamically allocate RAID map memory */
2265 if (le32_to_cpu(this_device
->raid_map
.structure_size
) >
2266 sizeof(this_device
->raid_map
)) {
2267 dev_warn(&h
->pdev
->dev
, "RAID map size is too large!\n");
2270 hpsa_debug_map_buff(h
, rc
, &this_device
->raid_map
);
2274 static int hpsa_vpd_page_supported(struct ctlr_info
*h
,
2275 unsigned char scsi3addr
[], u8 page
)
2280 unsigned char *buf
, bufsize
;
2282 buf
= kzalloc(256, GFP_KERNEL
);
2286 /* Get the size of the page list first */
2287 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2288 VPD_PAGE
| HPSA_VPD_SUPPORTED_PAGES
,
2289 buf
, HPSA_VPD_HEADER_SZ
);
2291 goto exit_unsupported
;
2293 if ((pages
+ HPSA_VPD_HEADER_SZ
) <= 255)
2294 bufsize
= pages
+ HPSA_VPD_HEADER_SZ
;
2298 /* Get the whole VPD page list */
2299 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2300 VPD_PAGE
| HPSA_VPD_SUPPORTED_PAGES
,
2303 goto exit_unsupported
;
2306 for (i
= 1; i
<= pages
; i
++)
2307 if (buf
[3 + i
] == page
)
2308 goto exit_supported
;
2317 static void hpsa_get_ioaccel_status(struct ctlr_info
*h
,
2318 unsigned char *scsi3addr
, struct hpsa_scsi_dev_t
*this_device
)
2324 this_device
->offload_config
= 0;
2325 this_device
->offload_enabled
= 0;
2327 buf
= kzalloc(64, GFP_KERNEL
);
2330 if (!hpsa_vpd_page_supported(h
, scsi3addr
, HPSA_VPD_LV_IOACCEL_STATUS
))
2332 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2333 VPD_PAGE
| HPSA_VPD_LV_IOACCEL_STATUS
, buf
, 64);
2337 #define IOACCEL_STATUS_BYTE 4
2338 #define OFFLOAD_CONFIGURED_BIT 0x01
2339 #define OFFLOAD_ENABLED_BIT 0x02
2340 ioaccel_status
= buf
[IOACCEL_STATUS_BYTE
];
2341 this_device
->offload_config
=
2342 !!(ioaccel_status
& OFFLOAD_CONFIGURED_BIT
);
2343 if (this_device
->offload_config
) {
2344 this_device
->offload_enabled
=
2345 !!(ioaccel_status
& OFFLOAD_ENABLED_BIT
);
2346 if (hpsa_get_raid_map(h
, scsi3addr
, this_device
))
2347 this_device
->offload_enabled
= 0;
2354 /* Get the device id from inquiry page 0x83 */
2355 static int hpsa_get_device_id(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2356 unsigned char *device_id
, int buflen
)
2363 buf
= kzalloc(64, GFP_KERNEL
);
2366 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| 0x83, buf
, 64);
2368 memcpy(device_id
, &buf
[8], buflen
);
2373 static int hpsa_scsi_do_report_luns(struct ctlr_info
*h
, int logical
,
2374 struct ReportLUNdata
*buf
, int bufsize
,
2375 int extended_response
)
2378 struct CommandList
*c
;
2379 unsigned char scsi3addr
[8];
2380 struct ErrorInfo
*ei
;
2382 c
= cmd_special_alloc(h
);
2383 if (c
== NULL
) { /* trouble... */
2384 dev_err(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2387 /* address the controller */
2388 memset(scsi3addr
, 0, sizeof(scsi3addr
));
2389 if (fill_cmd(c
, logical
? HPSA_REPORT_LOG
: HPSA_REPORT_PHYS
, h
,
2390 buf
, bufsize
, 0, scsi3addr
, TYPE_CMD
)) {
2394 if (extended_response
)
2395 c
->Request
.CDB
[1] = extended_response
;
2396 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2398 if (ei
->CommandStatus
!= 0 &&
2399 ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2400 hpsa_scsi_interpret_error(h
, c
);
2403 if (buf
->extended_response_flag
!= extended_response
) {
2404 dev_err(&h
->pdev
->dev
,
2405 "report luns requested format %u, got %u\n",
2407 buf
->extended_response_flag
);
2412 cmd_special_free(h
, c
);
2416 static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info
*h
,
2417 struct ReportLUNdata
*buf
,
2418 int bufsize
, int extended_response
)
2420 return hpsa_scsi_do_report_luns(h
, 0, buf
, bufsize
, extended_response
);
2423 static inline int hpsa_scsi_do_report_log_luns(struct ctlr_info
*h
,
2424 struct ReportLUNdata
*buf
, int bufsize
)
2426 return hpsa_scsi_do_report_luns(h
, 1, buf
, bufsize
, 0);
2429 static inline void hpsa_set_bus_target_lun(struct hpsa_scsi_dev_t
*device
,
2430 int bus
, int target
, int lun
)
2433 device
->target
= target
;
2437 /* Use VPD inquiry to get details of volume status */
2438 static int hpsa_get_volume_status(struct ctlr_info
*h
,
2439 unsigned char scsi3addr
[])
2446 buf
= kzalloc(64, GFP_KERNEL
);
2448 return HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2450 /* Does controller have VPD for logical volume status? */
2451 if (!hpsa_vpd_page_supported(h
, scsi3addr
, HPSA_VPD_LV_STATUS
))
2454 /* Get the size of the VPD return buffer */
2455 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| HPSA_VPD_LV_STATUS
,
2456 buf
, HPSA_VPD_HEADER_SZ
);
2461 /* Now get the whole VPD buffer */
2462 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| HPSA_VPD_LV_STATUS
,
2463 buf
, size
+ HPSA_VPD_HEADER_SZ
);
2466 status
= buf
[4]; /* status byte */
2472 return HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2475 /* Determine offline status of a volume.
2478 * 0xff (offline for unknown reasons)
2479 * # (integer code indicating one of several NOT READY states
2480 * describing why a volume is to be kept offline)
2482 static int hpsa_volume_offline(struct ctlr_info
*h
,
2483 unsigned char scsi3addr
[])
2485 struct CommandList
*c
;
2486 unsigned char *sense
, sense_key
, asc
, ascq
;
2490 #define ASC_LUN_NOT_READY 0x04
2491 #define ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS 0x04
2492 #define ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ 0x02
2497 (void) fill_cmd(c
, TEST_UNIT_READY
, h
, NULL
, 0, 0, scsi3addr
, TYPE_CMD
);
2498 hpsa_scsi_do_simple_cmd_core(h
, c
);
2499 sense
= c
->err_info
->SenseInfo
;
2500 sense_key
= sense
[2];
2503 cmd_status
= c
->err_info
->CommandStatus
;
2504 scsi_status
= c
->err_info
->ScsiStatus
;
2506 /* Is the volume 'not ready'? */
2507 if (cmd_status
!= CMD_TARGET_STATUS
||
2508 scsi_status
!= SAM_STAT_CHECK_CONDITION
||
2509 sense_key
!= NOT_READY
||
2510 asc
!= ASC_LUN_NOT_READY
) {
2514 /* Determine the reason for not ready state */
2515 ldstat
= hpsa_get_volume_status(h
, scsi3addr
);
2517 /* Keep volume offline in certain cases: */
2519 case HPSA_LV_UNDERGOING_ERASE
:
2520 case HPSA_LV_UNDERGOING_RPI
:
2521 case HPSA_LV_PENDING_RPI
:
2522 case HPSA_LV_ENCRYPTED_NO_KEY
:
2523 case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER
:
2524 case HPSA_LV_UNDERGOING_ENCRYPTION
:
2525 case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING
:
2526 case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER
:
2528 case HPSA_VPD_LV_STATUS_UNSUPPORTED
:
2529 /* If VPD status page isn't available,
2530 * use ASC/ASCQ to determine state
2532 if ((ascq
== ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS
) ||
2533 (ascq
== ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ
))
2542 static int hpsa_update_device_info(struct ctlr_info
*h
,
2543 unsigned char scsi3addr
[], struct hpsa_scsi_dev_t
*this_device
,
2544 unsigned char *is_OBDR_device
)
2547 #define OBDR_SIG_OFFSET 43
2548 #define OBDR_TAPE_SIG "$DR-10"
2549 #define OBDR_SIG_LEN (sizeof(OBDR_TAPE_SIG) - 1)
2550 #define OBDR_TAPE_INQ_SIZE (OBDR_SIG_OFFSET + OBDR_SIG_LEN)
2552 unsigned char *inq_buff
;
2553 unsigned char *obdr_sig
;
2555 inq_buff
= kzalloc(OBDR_TAPE_INQ_SIZE
, GFP_KERNEL
);
2559 /* Do an inquiry to the device to see what it is. */
2560 if (hpsa_scsi_do_inquiry(h
, scsi3addr
, 0, inq_buff
,
2561 (unsigned char) OBDR_TAPE_INQ_SIZE
) != 0) {
2562 /* Inquiry failed (msg printed already) */
2563 dev_err(&h
->pdev
->dev
,
2564 "hpsa_update_device_info: inquiry failed\n");
2568 this_device
->devtype
= (inq_buff
[0] & 0x1f);
2569 memcpy(this_device
->scsi3addr
, scsi3addr
, 8);
2570 memcpy(this_device
->vendor
, &inq_buff
[8],
2571 sizeof(this_device
->vendor
));
2572 memcpy(this_device
->model
, &inq_buff
[16],
2573 sizeof(this_device
->model
));
2574 memset(this_device
->device_id
, 0,
2575 sizeof(this_device
->device_id
));
2576 hpsa_get_device_id(h
, scsi3addr
, this_device
->device_id
,
2577 sizeof(this_device
->device_id
));
2579 if (this_device
->devtype
== TYPE_DISK
&&
2580 is_logical_dev_addr_mode(scsi3addr
)) {
2583 hpsa_get_raid_level(h
, scsi3addr
, &this_device
->raid_level
);
2584 if (h
->fw_support
& MISC_FW_RAID_OFFLOAD_BASIC
)
2585 hpsa_get_ioaccel_status(h
, scsi3addr
, this_device
);
2586 volume_offline
= hpsa_volume_offline(h
, scsi3addr
);
2587 if (volume_offline
< 0 || volume_offline
> 0xff)
2588 volume_offline
= HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2589 this_device
->volume_offline
= volume_offline
& 0xff;
2591 this_device
->raid_level
= RAID_UNKNOWN
;
2592 this_device
->offload_config
= 0;
2593 this_device
->offload_enabled
= 0;
2594 this_device
->volume_offline
= 0;
2597 if (is_OBDR_device
) {
2598 /* See if this is a One-Button-Disaster-Recovery device
2599 * by looking for "$DR-10" at offset 43 in inquiry data.
2601 obdr_sig
= &inq_buff
[OBDR_SIG_OFFSET
];
2602 *is_OBDR_device
= (this_device
->devtype
== TYPE_ROM
&&
2603 strncmp(obdr_sig
, OBDR_TAPE_SIG
,
2604 OBDR_SIG_LEN
) == 0);
2615 static unsigned char *ext_target_model
[] = {
2625 static int is_ext_target(struct ctlr_info
*h
, struct hpsa_scsi_dev_t
*device
)
2629 for (i
= 0; ext_target_model
[i
]; i
++)
2630 if (strncmp(device
->model
, ext_target_model
[i
],
2631 strlen(ext_target_model
[i
])) == 0)
2636 /* Helper function to assign bus, target, lun mapping of devices.
2637 * Puts non-external target logical volumes on bus 0, external target logical
2638 * volumes on bus 1, physical devices on bus 2. and the hba on bus 3.
2639 * Logical drive target and lun are assigned at this time, but
2640 * physical device lun and target assignment are deferred (assigned
2641 * in hpsa_find_target_lun, called by hpsa_scsi_add_entry.)
2643 static void figure_bus_target_lun(struct ctlr_info
*h
,
2644 u8
*lunaddrbytes
, struct hpsa_scsi_dev_t
*device
)
2646 u32 lunid
= le32_to_cpu(*((__le32
*) lunaddrbytes
));
2648 if (!is_logical_dev_addr_mode(lunaddrbytes
)) {
2649 /* physical device, target and lun filled in later */
2650 if (is_hba_lunid(lunaddrbytes
))
2651 hpsa_set_bus_target_lun(device
, 3, 0, lunid
& 0x3fff);
2653 /* defer target, lun assignment for physical devices */
2654 hpsa_set_bus_target_lun(device
, 2, -1, -1);
2657 /* It's a logical device */
2658 if (is_ext_target(h
, device
)) {
2659 /* external target way, put logicals on bus 1
2660 * and match target/lun numbers box
2661 * reports, other smart array, bus 0, target 0, match lunid
2663 hpsa_set_bus_target_lun(device
,
2664 1, (lunid
>> 16) & 0x3fff, lunid
& 0x00ff);
2667 hpsa_set_bus_target_lun(device
, 0, 0, lunid
& 0x3fff);
2671 * If there is no lun 0 on a target, linux won't find any devices.
2672 * For the external targets (arrays), we have to manually detect the enclosure
2673 * which is at lun zero, as CCISS_REPORT_PHYSICAL_LUNS doesn't report
2674 * it for some reason. *tmpdevice is the target we're adding,
2675 * this_device is a pointer into the current element of currentsd[]
2676 * that we're building up in update_scsi_devices(), below.
2677 * lunzerobits is a bitmap that tracks which targets already have a
2679 * Returns 1 if an enclosure was added, 0 if not.
2681 static int add_ext_target_dev(struct ctlr_info
*h
,
2682 struct hpsa_scsi_dev_t
*tmpdevice
,
2683 struct hpsa_scsi_dev_t
*this_device
, u8
*lunaddrbytes
,
2684 unsigned long lunzerobits
[], int *n_ext_target_devs
)
2686 unsigned char scsi3addr
[8];
2688 if (test_bit(tmpdevice
->target
, lunzerobits
))
2689 return 0; /* There is already a lun 0 on this target. */
2691 if (!is_logical_dev_addr_mode(lunaddrbytes
))
2692 return 0; /* It's the logical targets that may lack lun 0. */
2694 if (!is_ext_target(h
, tmpdevice
))
2695 return 0; /* Only external target devices have this problem. */
2697 if (tmpdevice
->lun
== 0) /* if lun is 0, then we have a lun 0. */
2700 memset(scsi3addr
, 0, 8);
2701 scsi3addr
[3] = tmpdevice
->target
;
2702 if (is_hba_lunid(scsi3addr
))
2703 return 0; /* Don't add the RAID controller here. */
2705 if (is_scsi_rev_5(h
))
2706 return 0; /* p1210m doesn't need to do this. */
2708 if (*n_ext_target_devs
>= MAX_EXT_TARGETS
) {
2709 dev_warn(&h
->pdev
->dev
, "Maximum number of external "
2710 "target devices exceeded. Check your hardware "
2715 if (hpsa_update_device_info(h
, scsi3addr
, this_device
, NULL
))
2717 (*n_ext_target_devs
)++;
2718 hpsa_set_bus_target_lun(this_device
,
2719 tmpdevice
->bus
, tmpdevice
->target
, 0);
2720 set_bit(tmpdevice
->target
, lunzerobits
);
2725 * Get address of physical disk used for an ioaccel2 mode command:
2726 * 1. Extract ioaccel2 handle from the command.
2727 * 2. Find a matching ioaccel2 handle from list of physical disks.
2729 * 1 and set scsi3addr to address of matching physical
2730 * 0 if no matching physical disk was found.
2732 static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info
*h
,
2733 struct CommandList
*ioaccel2_cmd_to_abort
, unsigned char *scsi3addr
)
2735 struct ReportExtendedLUNdata
*physicals
= NULL
;
2736 int responsesize
= 24; /* size of physical extended response */
2737 int extended
= 2; /* flag forces reporting 'other dev info'. */
2738 int reportsize
= sizeof(*physicals
) + HPSA_MAX_PHYS_LUN
* responsesize
;
2739 u32 nphysicals
= 0; /* number of reported physical devs */
2740 int found
= 0; /* found match (1) or not (0) */
2741 u32 find
; /* handle we need to match */
2743 struct scsi_cmnd
*scmd
; /* scsi command within request being aborted */
2744 struct hpsa_scsi_dev_t
*d
; /* device of request being aborted */
2745 struct io_accel2_cmd
*c2a
; /* ioaccel2 command to abort */
2746 __le32 it_nexus
; /* 4 byte device handle for the ioaccel2 cmd */
2747 __le32 scsi_nexus
; /* 4 byte device handle for the ioaccel2 cmd */
2749 if (ioaccel2_cmd_to_abort
->cmd_type
!= CMD_IOACCEL2
)
2750 return 0; /* no match */
2752 /* point to the ioaccel2 device handle */
2753 c2a
= &h
->ioaccel2_cmd_pool
[ioaccel2_cmd_to_abort
->cmdindex
];
2755 return 0; /* no match */
2757 scmd
= (struct scsi_cmnd
*) ioaccel2_cmd_to_abort
->scsi_cmd
;
2759 return 0; /* no match */
2761 d
= scmd
->device
->hostdata
;
2763 return 0; /* no match */
2765 it_nexus
= cpu_to_le32(d
->ioaccel_handle
);
2766 scsi_nexus
= c2a
->scsi_nexus
;
2767 find
= le32_to_cpu(c2a
->scsi_nexus
);
2769 if (h
->raid_offload_debug
> 0)
2770 dev_info(&h
->pdev
->dev
,
2771 "%s: scsi_nexus:0x%08x device id: 0x%02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x\n",
2772 __func__
, scsi_nexus
,
2773 d
->device_id
[0], d
->device_id
[1], d
->device_id
[2],
2774 d
->device_id
[3], d
->device_id
[4], d
->device_id
[5],
2775 d
->device_id
[6], d
->device_id
[7], d
->device_id
[8],
2776 d
->device_id
[9], d
->device_id
[10], d
->device_id
[11],
2777 d
->device_id
[12], d
->device_id
[13], d
->device_id
[14],
2780 /* Get the list of physical devices */
2781 physicals
= kzalloc(reportsize
, GFP_KERNEL
);
2782 if (physicals
== NULL
)
2784 if (hpsa_scsi_do_report_phys_luns(h
, (struct ReportLUNdata
*) physicals
,
2785 reportsize
, extended
)) {
2786 dev_err(&h
->pdev
->dev
,
2787 "Can't lookup %s device handle: report physical LUNs failed.\n",
2788 "HP SSD Smart Path");
2792 nphysicals
= be32_to_cpu(*((__be32
*)physicals
->LUNListLength
)) /
2795 /* find ioaccel2 handle in list of physicals: */
2796 for (i
= 0; i
< nphysicals
; i
++) {
2797 struct ext_report_lun_entry
*entry
= &physicals
->LUN
[i
];
2799 /* handle is in bytes 28-31 of each lun */
2800 if (entry
->ioaccel_handle
!= find
)
2801 continue; /* didn't match */
2803 memcpy(scsi3addr
, entry
->lunid
, 8);
2804 if (h
->raid_offload_debug
> 0)
2805 dev_info(&h
->pdev
->dev
,
2806 "%s: Searched h=0x%08x, Found h=0x%08x, scsiaddr 0x%8phN\n",
2808 entry
->ioaccel_handle
, scsi3addr
);
2809 break; /* found it */
2820 * Do CISS_REPORT_PHYS and CISS_REPORT_LOG. Data is returned in physdev,
2821 * logdev. The number of luns in physdev and logdev are returned in
2822 * *nphysicals and *nlogicals, respectively.
2823 * Returns 0 on success, -1 otherwise.
2825 static int hpsa_gather_lun_info(struct ctlr_info
*h
,
2826 int reportphyslunsize
, int reportloglunsize
,
2827 struct ReportLUNdata
*physdev
, u32
*nphysicals
, int *physical_mode
,
2828 struct ReportLUNdata
*logdev
, u32
*nlogicals
)
2830 int physical_entry_size
= 8;
2834 /* For I/O accelerator mode we need to read physical device handles */
2835 if (h
->transMethod
& CFGTBL_Trans_io_accel1
||
2836 h
->transMethod
& CFGTBL_Trans_io_accel2
) {
2837 *physical_mode
= HPSA_REPORT_PHYS_EXTENDED
;
2838 physical_entry_size
= 24;
2840 if (hpsa_scsi_do_report_phys_luns(h
, physdev
, reportphyslunsize
,
2842 dev_err(&h
->pdev
->dev
, "report physical LUNs failed.\n");
2845 *nphysicals
= be32_to_cpu(*((__be32
*)physdev
->LUNListLength
)) /
2846 physical_entry_size
;
2847 if (*nphysicals
> HPSA_MAX_PHYS_LUN
) {
2848 dev_warn(&h
->pdev
->dev
, "maximum physical LUNs (%d) exceeded."
2849 " %d LUNs ignored.\n", HPSA_MAX_PHYS_LUN
,
2850 *nphysicals
- HPSA_MAX_PHYS_LUN
);
2851 *nphysicals
= HPSA_MAX_PHYS_LUN
;
2853 if (hpsa_scsi_do_report_log_luns(h
, logdev
, reportloglunsize
)) {
2854 dev_err(&h
->pdev
->dev
, "report logical LUNs failed.\n");
2857 *nlogicals
= be32_to_cpu(*((__be32
*) logdev
->LUNListLength
)) / 8;
2858 /* Reject Logicals in excess of our max capability. */
2859 if (*nlogicals
> HPSA_MAX_LUN
) {
2860 dev_warn(&h
->pdev
->dev
,
2861 "maximum logical LUNs (%d) exceeded. "
2862 "%d LUNs ignored.\n", HPSA_MAX_LUN
,
2863 *nlogicals
- HPSA_MAX_LUN
);
2864 *nlogicals
= HPSA_MAX_LUN
;
2866 if (*nlogicals
+ *nphysicals
> HPSA_MAX_PHYS_LUN
) {
2867 dev_warn(&h
->pdev
->dev
,
2868 "maximum logical + physical LUNs (%d) exceeded. "
2869 "%d LUNs ignored.\n", HPSA_MAX_PHYS_LUN
,
2870 *nphysicals
+ *nlogicals
- HPSA_MAX_PHYS_LUN
);
2871 *nlogicals
= HPSA_MAX_PHYS_LUN
- *nphysicals
;
2876 static u8
*figure_lunaddrbytes(struct ctlr_info
*h
, int raid_ctlr_position
,
2877 int i
, int nphysicals
, int nlogicals
,
2878 struct ReportExtendedLUNdata
*physdev_list
,
2879 struct ReportLUNdata
*logdev_list
)
2881 /* Helper function, figure out where the LUN ID info is coming from
2882 * given index i, lists of physical and logical devices, where in
2883 * the list the raid controller is supposed to appear (first or last)
2886 int logicals_start
= nphysicals
+ (raid_ctlr_position
== 0);
2887 int last_device
= nphysicals
+ nlogicals
+ (raid_ctlr_position
== 0);
2889 if (i
== raid_ctlr_position
)
2890 return RAID_CTLR_LUNID
;
2892 if (i
< logicals_start
)
2893 return &physdev_list
->LUN
[i
-
2894 (raid_ctlr_position
== 0)].lunid
[0];
2896 if (i
< last_device
)
2897 return &logdev_list
->LUN
[i
- nphysicals
-
2898 (raid_ctlr_position
== 0)][0];
2903 static int hpsa_hba_mode_enabled(struct ctlr_info
*h
)
2906 int hba_mode_enabled
;
2907 struct bmic_controller_parameters
*ctlr_params
;
2908 ctlr_params
= kzalloc(sizeof(struct bmic_controller_parameters
),
2913 rc
= hpsa_bmic_ctrl_mode_sense(h
, RAID_CTLR_LUNID
, 0, ctlr_params
,
2914 sizeof(struct bmic_controller_parameters
));
2921 ((ctlr_params
->nvram_flags
& HBA_MODE_ENABLED_FLAG
) != 0);
2923 return hba_mode_enabled
;
2926 static void hpsa_update_scsi_devices(struct ctlr_info
*h
, int hostno
)
2928 /* the idea here is we could get notified
2929 * that some devices have changed, so we do a report
2930 * physical luns and report logical luns cmd, and adjust
2931 * our list of devices accordingly.
2933 * The scsi3addr's of devices won't change so long as the
2934 * adapter is not reset. That means we can rescan and
2935 * tell which devices we already know about, vs. new
2936 * devices, vs. disappearing devices.
2938 struct ReportExtendedLUNdata
*physdev_list
= NULL
;
2939 struct ReportLUNdata
*logdev_list
= NULL
;
2942 int physical_mode
= 0;
2943 u32 ndev_allocated
= 0;
2944 struct hpsa_scsi_dev_t
**currentsd
, *this_device
, *tmpdevice
;
2946 int i
, n_ext_target_devs
, ndevs_to_allocate
;
2947 int raid_ctlr_position
;
2948 int rescan_hba_mode
;
2949 DECLARE_BITMAP(lunzerobits
, MAX_EXT_TARGETS
);
2951 currentsd
= kzalloc(sizeof(*currentsd
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
2952 physdev_list
= kzalloc(sizeof(*physdev_list
), GFP_KERNEL
);
2953 logdev_list
= kzalloc(sizeof(*logdev_list
), GFP_KERNEL
);
2954 tmpdevice
= kzalloc(sizeof(*tmpdevice
), GFP_KERNEL
);
2956 if (!currentsd
|| !physdev_list
|| !logdev_list
|| !tmpdevice
) {
2957 dev_err(&h
->pdev
->dev
, "out of memory\n");
2960 memset(lunzerobits
, 0, sizeof(lunzerobits
));
2962 rescan_hba_mode
= hpsa_hba_mode_enabled(h
);
2963 if (rescan_hba_mode
< 0)
2966 if (!h
->hba_mode_enabled
&& rescan_hba_mode
)
2967 dev_warn(&h
->pdev
->dev
, "HBA mode enabled\n");
2968 else if (h
->hba_mode_enabled
&& !rescan_hba_mode
)
2969 dev_warn(&h
->pdev
->dev
, "HBA mode disabled\n");
2971 h
->hba_mode_enabled
= rescan_hba_mode
;
2973 if (hpsa_gather_lun_info(h
,
2974 sizeof(*physdev_list
), sizeof(*logdev_list
),
2975 (struct ReportLUNdata
*) physdev_list
, &nphysicals
,
2976 &physical_mode
, logdev_list
, &nlogicals
))
2979 /* We might see up to the maximum number of logical and physical disks
2980 * plus external target devices, and a device for the local RAID
2983 ndevs_to_allocate
= nphysicals
+ nlogicals
+ MAX_EXT_TARGETS
+ 1;
2985 /* Allocate the per device structures */
2986 for (i
= 0; i
< ndevs_to_allocate
; i
++) {
2987 if (i
>= HPSA_MAX_DEVICES
) {
2988 dev_warn(&h
->pdev
->dev
, "maximum devices (%d) exceeded."
2989 " %d devices ignored.\n", HPSA_MAX_DEVICES
,
2990 ndevs_to_allocate
- HPSA_MAX_DEVICES
);
2994 currentsd
[i
] = kzalloc(sizeof(*currentsd
[i
]), GFP_KERNEL
);
2995 if (!currentsd
[i
]) {
2996 dev_warn(&h
->pdev
->dev
, "out of memory at %s:%d\n",
2997 __FILE__
, __LINE__
);
3003 if (is_scsi_rev_5(h
))
3004 raid_ctlr_position
= 0;
3006 raid_ctlr_position
= nphysicals
+ nlogicals
;
3008 /* adjust our table of devices */
3009 n_ext_target_devs
= 0;
3010 for (i
= 0; i
< nphysicals
+ nlogicals
+ 1; i
++) {
3011 u8
*lunaddrbytes
, is_OBDR
= 0;
3013 /* Figure out where the LUN ID info is coming from */
3014 lunaddrbytes
= figure_lunaddrbytes(h
, raid_ctlr_position
,
3015 i
, nphysicals
, nlogicals
, physdev_list
, logdev_list
);
3016 /* skip masked physical devices. */
3017 if (lunaddrbytes
[3] & 0xC0 &&
3018 i
< nphysicals
+ (raid_ctlr_position
== 0))
3021 /* Get device type, vendor, model, device id */
3022 if (hpsa_update_device_info(h
, lunaddrbytes
, tmpdevice
,
3024 continue; /* skip it if we can't talk to it. */
3025 figure_bus_target_lun(h
, lunaddrbytes
, tmpdevice
);
3026 this_device
= currentsd
[ncurrent
];
3029 * For external target devices, we have to insert a LUN 0 which
3030 * doesn't show up in CCISS_REPORT_PHYSICAL data, but there
3031 * is nonetheless an enclosure device there. We have to
3032 * present that otherwise linux won't find anything if
3033 * there is no lun 0.
3035 if (add_ext_target_dev(h
, tmpdevice
, this_device
,
3036 lunaddrbytes
, lunzerobits
,
3037 &n_ext_target_devs
)) {
3039 this_device
= currentsd
[ncurrent
];
3042 *this_device
= *tmpdevice
;
3044 switch (this_device
->devtype
) {
3046 /* We don't *really* support actual CD-ROM devices,
3047 * just "One Button Disaster Recovery" tape drive
3048 * which temporarily pretends to be a CD-ROM drive.
3049 * So we check that the device is really an OBDR tape
3050 * device by checking for "$DR-10" in bytes 43-48 of
3057 if (h
->hba_mode_enabled
) {
3058 /* never use raid mapper in HBA mode */
3059 this_device
->offload_enabled
= 0;
3062 } else if (h
->acciopath_status
) {
3063 if (i
>= nphysicals
) {
3073 if (physical_mode
== HPSA_REPORT_PHYS_EXTENDED
) {
3074 memcpy(&this_device
->ioaccel_handle
,
3076 sizeof(this_device
->ioaccel_handle
));
3081 case TYPE_MEDIUM_CHANGER
:
3085 /* Only present the Smartarray HBA as a RAID controller.
3086 * If it's a RAID controller other than the HBA itself
3087 * (an external RAID controller, MSA500 or similar)
3090 if (!is_hba_lunid(lunaddrbytes
))
3097 if (ncurrent
>= HPSA_MAX_DEVICES
)
3100 adjust_hpsa_scsi_table(h
, hostno
, currentsd
, ncurrent
);
3103 for (i
= 0; i
< ndev_allocated
; i
++)
3104 kfree(currentsd
[i
]);
3106 kfree(physdev_list
);
3111 * hpsa_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci
3112 * dma mapping and fills in the scatter gather entries of the
3115 static int hpsa_scatter_gather(struct ctlr_info
*h
,
3116 struct CommandList
*cp
,
3117 struct scsi_cmnd
*cmd
)
3120 struct scatterlist
*sg
;
3122 int use_sg
, i
, sg_index
, chained
;
3123 struct SGDescriptor
*curr_sg
;
3125 BUG_ON(scsi_sg_count(cmd
) > h
->maxsgentries
);
3127 use_sg
= scsi_dma_map(cmd
);
3132 goto sglist_finished
;
3137 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3138 if (i
== h
->max_cmd_sg_entries
- 1 &&
3139 use_sg
> h
->max_cmd_sg_entries
) {
3141 curr_sg
= h
->cmd_sg_list
[cp
->cmdindex
];
3144 addr64
= (u64
) sg_dma_address(sg
);
3145 len
= sg_dma_len(sg
);
3146 curr_sg
->Addr
= cpu_to_le64(addr64
);
3147 curr_sg
->Len
= cpu_to_le32(len
);
3148 curr_sg
->Ext
= cpu_to_le32(0);
3151 (--curr_sg
)->Ext
= cpu_to_le32(HPSA_SG_LAST
);
3153 if (use_sg
+ chained
> h
->maxSG
)
3154 h
->maxSG
= use_sg
+ chained
;
3157 cp
->Header
.SGList
= h
->max_cmd_sg_entries
;
3158 cp
->Header
.SGTotal
= cpu_to_le16(use_sg
+ 1);
3159 if (hpsa_map_sg_chain_block(h
, cp
)) {
3160 scsi_dma_unmap(cmd
);
3168 cp
->Header
.SGList
= (u8
) use_sg
; /* no. SGs contig in this cmd */
3169 cp
->Header
.SGTotal
= cpu_to_le16(use_sg
); /* total sgs in cmd list */
3173 #define IO_ACCEL_INELIGIBLE (1)
3174 static int fixup_ioaccel_cdb(u8
*cdb
, int *cdb_len
)
3180 /* Perform some CDB fixups if needed using 10 byte reads/writes only */
3187 if (*cdb_len
== 6) {
3188 block
= (((u32
) cdb
[2]) << 8) | cdb
[3];
3191 BUG_ON(*cdb_len
!= 12);
3192 block
= (((u32
) cdb
[2]) << 24) |
3193 (((u32
) cdb
[3]) << 16) |
3194 (((u32
) cdb
[4]) << 8) |
3197 (((u32
) cdb
[6]) << 24) |
3198 (((u32
) cdb
[7]) << 16) |
3199 (((u32
) cdb
[8]) << 8) |
3202 if (block_cnt
> 0xffff)
3203 return IO_ACCEL_INELIGIBLE
;
3205 cdb
[0] = is_write
? WRITE_10
: READ_10
;
3207 cdb
[2] = (u8
) (block
>> 24);
3208 cdb
[3] = (u8
) (block
>> 16);
3209 cdb
[4] = (u8
) (block
>> 8);
3210 cdb
[5] = (u8
) (block
);
3212 cdb
[7] = (u8
) (block_cnt
>> 8);
3213 cdb
[8] = (u8
) (block_cnt
);
3221 static int hpsa_scsi_ioaccel1_queue_command(struct ctlr_info
*h
,
3222 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3225 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3226 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[c
->cmdindex
];
3228 unsigned int total_len
= 0;
3229 struct scatterlist
*sg
;
3232 struct SGDescriptor
*curr_sg
;
3233 u32 control
= IOACCEL1_CONTROL_SIMPLEQUEUE
;
3235 /* TODO: implement chaining support */
3236 if (scsi_sg_count(cmd
) > h
->ioaccel_maxsg
)
3237 return IO_ACCEL_INELIGIBLE
;
3239 BUG_ON(cmd
->cmd_len
> IOACCEL1_IOFLAGS_CDBLEN_MAX
);
3241 if (fixup_ioaccel_cdb(cdb
, &cdb_len
))
3242 return IO_ACCEL_INELIGIBLE
;
3244 c
->cmd_type
= CMD_IOACCEL1
;
3246 /* Adjust the DMA address to point to the accelerated command buffer */
3247 c
->busaddr
= (u32
) h
->ioaccel_cmd_pool_dhandle
+
3248 (c
->cmdindex
* sizeof(*cp
));
3249 BUG_ON(c
->busaddr
& 0x0000007F);
3251 use_sg
= scsi_dma_map(cmd
);
3257 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3258 addr64
= (u64
) sg_dma_address(sg
);
3259 len
= sg_dma_len(sg
);
3261 curr_sg
->Addr
= cpu_to_le64(addr64
);
3262 curr_sg
->Len
= cpu_to_le32(len
);
3263 curr_sg
->Ext
= cpu_to_le32(0);
3266 (--curr_sg
)->Ext
= cpu_to_le32(HPSA_SG_LAST
);
3268 switch (cmd
->sc_data_direction
) {
3270 control
|= IOACCEL1_CONTROL_DATA_OUT
;
3272 case DMA_FROM_DEVICE
:
3273 control
|= IOACCEL1_CONTROL_DATA_IN
;
3276 control
|= IOACCEL1_CONTROL_NODATAXFER
;
3279 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
3280 cmd
->sc_data_direction
);
3285 control
|= IOACCEL1_CONTROL_NODATAXFER
;
3288 c
->Header
.SGList
= use_sg
;
3289 /* Fill out the command structure to submit */
3290 cp
->dev_handle
= cpu_to_le16(ioaccel_handle
& 0xFFFF);
3291 cp
->transfer_len
= cpu_to_le32(total_len
);
3292 cp
->io_flags
= cpu_to_le16(IOACCEL1_IOFLAGS_IO_REQ
|
3293 (cdb_len
& IOACCEL1_IOFLAGS_CDBLEN_MASK
));
3294 cp
->control
= cpu_to_le32(control
);
3295 memcpy(cp
->CDB
, cdb
, cdb_len
);
3296 memcpy(cp
->CISS_LUN
, scsi3addr
, 8);
3297 /* Tag was already set at init time. */
3298 enqueue_cmd_and_start_io(h
, c
);
3303 * Queue a command directly to a device behind the controller using the
3304 * I/O accelerator path.
3306 static int hpsa_scsi_ioaccel_direct_map(struct ctlr_info
*h
,
3307 struct CommandList
*c
)
3309 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3310 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3312 return hpsa_scsi_ioaccel_queue_command(h
, c
, dev
->ioaccel_handle
,
3313 cmd
->cmnd
, cmd
->cmd_len
, dev
->scsi3addr
);
3317 * Set encryption parameters for the ioaccel2 request
3319 static void set_encrypt_ioaccel2(struct ctlr_info
*h
,
3320 struct CommandList
*c
, struct io_accel2_cmd
*cp
)
3322 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3323 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3324 struct raid_map_data
*map
= &dev
->raid_map
;
3327 BUG_ON(!(dev
->offload_config
&& dev
->offload_enabled
));
3329 /* Are we doing encryption on this device */
3330 if (!(le16_to_cpu(map
->flags
) & RAID_MAP_FLAG_ENCRYPT_ON
))
3332 /* Set the data encryption key index. */
3333 cp
->dekindex
= map
->dekindex
;
3335 /* Set the encryption enable flag, encoded into direction field. */
3336 cp
->direction
|= IOACCEL2_DIRECTION_ENCRYPT_MASK
;
3338 /* Set encryption tweak values based on logical block address
3339 * If block size is 512, tweak value is LBA.
3340 * For other block sizes, tweak is (LBA * block size)/ 512)
3342 switch (cmd
->cmnd
[0]) {
3343 /* Required? 6-byte cdbs eliminated by fixup_ioaccel_cdb */
3346 first_block
= get_unaligned_be16(&cmd
->cmnd
[2]);
3350 /* Required? 12-byte cdbs eliminated by fixup_ioaccel_cdb */
3353 first_block
= get_unaligned_be32(&cmd
->cmnd
[2]);
3357 first_block
= get_unaligned_be64(&cmd
->cmnd
[2]);
3360 dev_err(&h
->pdev
->dev
,
3361 "ERROR: %s: size (0x%x) not supported for encryption\n",
3362 __func__
, cmd
->cmnd
[0]);
3367 if (le32_to_cpu(map
->volume_blk_size
) != 512)
3368 first_block
= first_block
*
3369 le32_to_cpu(map
->volume_blk_size
)/512;
3371 cp
->tweak_lower
= cpu_to_le32(first_block
);
3372 cp
->tweak_upper
= cpu_to_le32(first_block
>> 32);
3375 static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info
*h
,
3376 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3379 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3380 struct io_accel2_cmd
*cp
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
3381 struct ioaccel2_sg_element
*curr_sg
;
3383 struct scatterlist
*sg
;
3388 if (scsi_sg_count(cmd
) > h
->ioaccel_maxsg
)
3389 return IO_ACCEL_INELIGIBLE
;
3391 if (fixup_ioaccel_cdb(cdb
, &cdb_len
))
3392 return IO_ACCEL_INELIGIBLE
;
3393 c
->cmd_type
= CMD_IOACCEL2
;
3394 /* Adjust the DMA address to point to the accelerated command buffer */
3395 c
->busaddr
= (u32
) h
->ioaccel2_cmd_pool_dhandle
+
3396 (c
->cmdindex
* sizeof(*cp
));
3397 BUG_ON(c
->busaddr
& 0x0000007F);
3399 memset(cp
, 0, sizeof(*cp
));
3400 cp
->IU_type
= IOACCEL2_IU_TYPE
;
3402 use_sg
= scsi_dma_map(cmd
);
3407 BUG_ON(use_sg
> IOACCEL2_MAXSGENTRIES
);
3409 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3410 addr64
= (u64
) sg_dma_address(sg
);
3411 len
= sg_dma_len(sg
);
3413 curr_sg
->address
= cpu_to_le64(addr64
);
3414 curr_sg
->length
= cpu_to_le32(len
);
3415 curr_sg
->reserved
[0] = 0;
3416 curr_sg
->reserved
[1] = 0;
3417 curr_sg
->reserved
[2] = 0;
3418 curr_sg
->chain_indicator
= 0;
3422 switch (cmd
->sc_data_direction
) {
3424 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3425 cp
->direction
|= IOACCEL2_DIR_DATA_OUT
;
3427 case DMA_FROM_DEVICE
:
3428 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3429 cp
->direction
|= IOACCEL2_DIR_DATA_IN
;
3432 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3433 cp
->direction
|= IOACCEL2_DIR_NO_DATA
;
3436 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
3437 cmd
->sc_data_direction
);
3442 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3443 cp
->direction
|= IOACCEL2_DIR_NO_DATA
;
3446 /* Set encryption parameters, if necessary */
3447 set_encrypt_ioaccel2(h
, c
, cp
);
3449 cp
->scsi_nexus
= cpu_to_le32(ioaccel_handle
);
3450 cp
->Tag
= cpu_to_le32(c
->cmdindex
<< DIRECT_LOOKUP_SHIFT
|
3452 memcpy(cp
->cdb
, cdb
, sizeof(cp
->cdb
));
3454 /* fill in sg elements */
3455 cp
->sg_count
= (u8
) use_sg
;
3457 cp
->data_len
= cpu_to_le32(total_len
);
3458 cp
->err_ptr
= cpu_to_le64(c
->busaddr
+
3459 offsetof(struct io_accel2_cmd
, error_data
));
3460 cp
->err_len
= cpu_to_le32(sizeof(cp
->error_data
));
3462 enqueue_cmd_and_start_io(h
, c
);
3467 * Queue a command to the correct I/O accelerator path.
3469 static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info
*h
,
3470 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3473 if (h
->transMethod
& CFGTBL_Trans_io_accel1
)
3474 return hpsa_scsi_ioaccel1_queue_command(h
, c
, ioaccel_handle
,
3475 cdb
, cdb_len
, scsi3addr
);
3477 return hpsa_scsi_ioaccel2_queue_command(h
, c
, ioaccel_handle
,
3478 cdb
, cdb_len
, scsi3addr
);
3481 static void raid_map_helper(struct raid_map_data
*map
,
3482 int offload_to_mirror
, u32
*map_index
, u32
*current_group
)
3484 if (offload_to_mirror
== 0) {
3485 /* use physical disk in the first mirrored group. */
3486 *map_index
%= le16_to_cpu(map
->data_disks_per_row
);
3490 /* determine mirror group that *map_index indicates */
3491 *current_group
= *map_index
/
3492 le16_to_cpu(map
->data_disks_per_row
);
3493 if (offload_to_mirror
== *current_group
)
3495 if (*current_group
< le16_to_cpu(map
->layout_map_count
) - 1) {
3496 /* select map index from next group */
3497 *map_index
+= le16_to_cpu(map
->data_disks_per_row
);
3500 /* select map index from first group */
3501 *map_index
%= le16_to_cpu(map
->data_disks_per_row
);
3504 } while (offload_to_mirror
!= *current_group
);
3508 * Attempt to perform offload RAID mapping for a logical volume I/O.
3510 static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info
*h
,
3511 struct CommandList
*c
)
3513 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3514 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3515 struct raid_map_data
*map
= &dev
->raid_map
;
3516 struct raid_map_disk_data
*dd
= &map
->data
[0];
3519 u64 first_block
, last_block
;
3522 u64 first_row
, last_row
;
3523 u32 first_row_offset
, last_row_offset
;
3524 u32 first_column
, last_column
;
3525 u64 r0_first_row
, r0_last_row
;
3526 u32 r5or6_blocks_per_row
;
3527 u64 r5or6_first_row
, r5or6_last_row
;
3528 u32 r5or6_first_row_offset
, r5or6_last_row_offset
;
3529 u32 r5or6_first_column
, r5or6_last_column
;
3530 u32 total_disks_per_row
;
3532 u32 first_group
, last_group
, current_group
;
3540 #if BITS_PER_LONG == 32
3543 int offload_to_mirror
;
3545 BUG_ON(!(dev
->offload_config
&& dev
->offload_enabled
));
3547 /* check for valid opcode, get LBA and block count */
3548 switch (cmd
->cmnd
[0]) {
3553 (((u64
) cmd
->cmnd
[2]) << 8) |
3555 block_cnt
= cmd
->cmnd
[4];
3563 (((u64
) cmd
->cmnd
[2]) << 24) |
3564 (((u64
) cmd
->cmnd
[3]) << 16) |
3565 (((u64
) cmd
->cmnd
[4]) << 8) |
3568 (((u32
) cmd
->cmnd
[7]) << 8) |
3575 (((u64
) cmd
->cmnd
[2]) << 24) |
3576 (((u64
) cmd
->cmnd
[3]) << 16) |
3577 (((u64
) cmd
->cmnd
[4]) << 8) |
3580 (((u32
) cmd
->cmnd
[6]) << 24) |
3581 (((u32
) cmd
->cmnd
[7]) << 16) |
3582 (((u32
) cmd
->cmnd
[8]) << 8) |
3589 (((u64
) cmd
->cmnd
[2]) << 56) |
3590 (((u64
) cmd
->cmnd
[3]) << 48) |
3591 (((u64
) cmd
->cmnd
[4]) << 40) |
3592 (((u64
) cmd
->cmnd
[5]) << 32) |
3593 (((u64
) cmd
->cmnd
[6]) << 24) |
3594 (((u64
) cmd
->cmnd
[7]) << 16) |
3595 (((u64
) cmd
->cmnd
[8]) << 8) |
3598 (((u32
) cmd
->cmnd
[10]) << 24) |
3599 (((u32
) cmd
->cmnd
[11]) << 16) |
3600 (((u32
) cmd
->cmnd
[12]) << 8) |
3604 return IO_ACCEL_INELIGIBLE
; /* process via normal I/O path */
3606 last_block
= first_block
+ block_cnt
- 1;
3608 /* check for write to non-RAID-0 */
3609 if (is_write
&& dev
->raid_level
!= 0)
3610 return IO_ACCEL_INELIGIBLE
;
3612 /* check for invalid block or wraparound */
3613 if (last_block
>= le64_to_cpu(map
->volume_blk_cnt
) ||
3614 last_block
< first_block
)
3615 return IO_ACCEL_INELIGIBLE
;
3617 /* calculate stripe information for the request */
3618 blocks_per_row
= le16_to_cpu(map
->data_disks_per_row
) *
3619 le16_to_cpu(map
->strip_size
);
3620 strip_size
= le16_to_cpu(map
->strip_size
);
3621 #if BITS_PER_LONG == 32
3622 tmpdiv
= first_block
;
3623 (void) do_div(tmpdiv
, blocks_per_row
);
3625 tmpdiv
= last_block
;
3626 (void) do_div(tmpdiv
, blocks_per_row
);
3628 first_row_offset
= (u32
) (first_block
- (first_row
* blocks_per_row
));
3629 last_row_offset
= (u32
) (last_block
- (last_row
* blocks_per_row
));
3630 tmpdiv
= first_row_offset
;
3631 (void) do_div(tmpdiv
, strip_size
);
3632 first_column
= tmpdiv
;
3633 tmpdiv
= last_row_offset
;
3634 (void) do_div(tmpdiv
, strip_size
);
3635 last_column
= tmpdiv
;
3637 first_row
= first_block
/ blocks_per_row
;
3638 last_row
= last_block
/ blocks_per_row
;
3639 first_row_offset
= (u32
) (first_block
- (first_row
* blocks_per_row
));
3640 last_row_offset
= (u32
) (last_block
- (last_row
* blocks_per_row
));
3641 first_column
= first_row_offset
/ strip_size
;
3642 last_column
= last_row_offset
/ strip_size
;
3645 /* if this isn't a single row/column then give to the controller */
3646 if ((first_row
!= last_row
) || (first_column
!= last_column
))
3647 return IO_ACCEL_INELIGIBLE
;
3649 /* proceeding with driver mapping */
3650 total_disks_per_row
= le16_to_cpu(map
->data_disks_per_row
) +
3651 le16_to_cpu(map
->metadata_disks_per_row
);
3652 map_row
= ((u32
)(first_row
>> map
->parity_rotation_shift
)) %
3653 le16_to_cpu(map
->row_cnt
);
3654 map_index
= (map_row
* total_disks_per_row
) + first_column
;
3656 switch (dev
->raid_level
) {
3658 break; /* nothing special to do */
3660 /* Handles load balance across RAID 1 members.
3661 * (2-drive R1 and R10 with even # of drives.)
3662 * Appropriate for SSDs, not optimal for HDDs
3664 BUG_ON(le16_to_cpu(map
->layout_map_count
) != 2);
3665 if (dev
->offload_to_mirror
)
3666 map_index
+= le16_to_cpu(map
->data_disks_per_row
);
3667 dev
->offload_to_mirror
= !dev
->offload_to_mirror
;
3670 /* Handles N-way mirrors (R1-ADM)
3671 * and R10 with # of drives divisible by 3.)
3673 BUG_ON(le16_to_cpu(map
->layout_map_count
) != 3);
3675 offload_to_mirror
= dev
->offload_to_mirror
;
3676 raid_map_helper(map
, offload_to_mirror
,
3677 &map_index
, ¤t_group
);
3678 /* set mirror group to use next time */
3680 (offload_to_mirror
>=
3681 le16_to_cpu(map
->layout_map_count
) - 1)
3682 ? 0 : offload_to_mirror
+ 1;
3683 dev
->offload_to_mirror
= offload_to_mirror
;
3684 /* Avoid direct use of dev->offload_to_mirror within this
3685 * function since multiple threads might simultaneously
3686 * increment it beyond the range of dev->layout_map_count -1.
3691 if (le16_to_cpu(map
->layout_map_count
) <= 1)
3694 /* Verify first and last block are in same RAID group */
3695 r5or6_blocks_per_row
=
3696 le16_to_cpu(map
->strip_size
) *
3697 le16_to_cpu(map
->data_disks_per_row
);
3698 BUG_ON(r5or6_blocks_per_row
== 0);
3699 stripesize
= r5or6_blocks_per_row
*
3700 le16_to_cpu(map
->layout_map_count
);
3701 #if BITS_PER_LONG == 32
3702 tmpdiv
= first_block
;
3703 first_group
= do_div(tmpdiv
, stripesize
);
3704 tmpdiv
= first_group
;
3705 (void) do_div(tmpdiv
, r5or6_blocks_per_row
);
3706 first_group
= tmpdiv
;
3707 tmpdiv
= last_block
;
3708 last_group
= do_div(tmpdiv
, stripesize
);
3709 tmpdiv
= last_group
;
3710 (void) do_div(tmpdiv
, r5or6_blocks_per_row
);
3711 last_group
= tmpdiv
;
3713 first_group
= (first_block
% stripesize
) / r5or6_blocks_per_row
;
3714 last_group
= (last_block
% stripesize
) / r5or6_blocks_per_row
;
3716 if (first_group
!= last_group
)
3717 return IO_ACCEL_INELIGIBLE
;
3719 /* Verify request is in a single row of RAID 5/6 */
3720 #if BITS_PER_LONG == 32
3721 tmpdiv
= first_block
;
3722 (void) do_div(tmpdiv
, stripesize
);
3723 first_row
= r5or6_first_row
= r0_first_row
= tmpdiv
;
3724 tmpdiv
= last_block
;
3725 (void) do_div(tmpdiv
, stripesize
);
3726 r5or6_last_row
= r0_last_row
= tmpdiv
;
3728 first_row
= r5or6_first_row
= r0_first_row
=
3729 first_block
/ stripesize
;
3730 r5or6_last_row
= r0_last_row
= last_block
/ stripesize
;
3732 if (r5or6_first_row
!= r5or6_last_row
)
3733 return IO_ACCEL_INELIGIBLE
;
3736 /* Verify request is in a single column */
3737 #if BITS_PER_LONG == 32
3738 tmpdiv
= first_block
;
3739 first_row_offset
= do_div(tmpdiv
, stripesize
);
3740 tmpdiv
= first_row_offset
;
3741 first_row_offset
= (u32
) do_div(tmpdiv
, r5or6_blocks_per_row
);
3742 r5or6_first_row_offset
= first_row_offset
;
3743 tmpdiv
= last_block
;
3744 r5or6_last_row_offset
= do_div(tmpdiv
, stripesize
);
3745 tmpdiv
= r5or6_last_row_offset
;
3746 r5or6_last_row_offset
= do_div(tmpdiv
, r5or6_blocks_per_row
);
3747 tmpdiv
= r5or6_first_row_offset
;
3748 (void) do_div(tmpdiv
, map
->strip_size
);
3749 first_column
= r5or6_first_column
= tmpdiv
;
3750 tmpdiv
= r5or6_last_row_offset
;
3751 (void) do_div(tmpdiv
, map
->strip_size
);
3752 r5or6_last_column
= tmpdiv
;
3754 first_row_offset
= r5or6_first_row_offset
=
3755 (u32
)((first_block
% stripesize
) %
3756 r5or6_blocks_per_row
);
3758 r5or6_last_row_offset
=
3759 (u32
)((last_block
% stripesize
) %
3760 r5or6_blocks_per_row
);
3762 first_column
= r5or6_first_column
=
3763 r5or6_first_row_offset
/ le16_to_cpu(map
->strip_size
);
3765 r5or6_last_row_offset
/ le16_to_cpu(map
->strip_size
);
3767 if (r5or6_first_column
!= r5or6_last_column
)
3768 return IO_ACCEL_INELIGIBLE
;
3770 /* Request is eligible */
3771 map_row
= ((u32
)(first_row
>> map
->parity_rotation_shift
)) %
3772 le16_to_cpu(map
->row_cnt
);
3774 map_index
= (first_group
*
3775 (le16_to_cpu(map
->row_cnt
) * total_disks_per_row
)) +
3776 (map_row
* total_disks_per_row
) + first_column
;
3779 return IO_ACCEL_INELIGIBLE
;
3782 disk_handle
= dd
[map_index
].ioaccel_handle
;
3783 disk_block
= le64_to_cpu(map
->disk_starting_blk
) +
3784 first_row
* le16_to_cpu(map
->strip_size
) +
3785 (first_row_offset
- first_column
*
3786 le16_to_cpu(map
->strip_size
));
3787 disk_block_cnt
= block_cnt
;
3789 /* handle differing logical/physical block sizes */
3790 if (map
->phys_blk_shift
) {
3791 disk_block
<<= map
->phys_blk_shift
;
3792 disk_block_cnt
<<= map
->phys_blk_shift
;
3794 BUG_ON(disk_block_cnt
> 0xffff);
3796 /* build the new CDB for the physical disk I/O */
3797 if (disk_block
> 0xffffffff) {
3798 cdb
[0] = is_write
? WRITE_16
: READ_16
;
3800 cdb
[2] = (u8
) (disk_block
>> 56);
3801 cdb
[3] = (u8
) (disk_block
>> 48);
3802 cdb
[4] = (u8
) (disk_block
>> 40);
3803 cdb
[5] = (u8
) (disk_block
>> 32);
3804 cdb
[6] = (u8
) (disk_block
>> 24);
3805 cdb
[7] = (u8
) (disk_block
>> 16);
3806 cdb
[8] = (u8
) (disk_block
>> 8);
3807 cdb
[9] = (u8
) (disk_block
);
3808 cdb
[10] = (u8
) (disk_block_cnt
>> 24);
3809 cdb
[11] = (u8
) (disk_block_cnt
>> 16);
3810 cdb
[12] = (u8
) (disk_block_cnt
>> 8);
3811 cdb
[13] = (u8
) (disk_block_cnt
);
3816 cdb
[0] = is_write
? WRITE_10
: READ_10
;
3818 cdb
[2] = (u8
) (disk_block
>> 24);
3819 cdb
[3] = (u8
) (disk_block
>> 16);
3820 cdb
[4] = (u8
) (disk_block
>> 8);
3821 cdb
[5] = (u8
) (disk_block
);
3823 cdb
[7] = (u8
) (disk_block_cnt
>> 8);
3824 cdb
[8] = (u8
) (disk_block_cnt
);
3828 return hpsa_scsi_ioaccel_queue_command(h
, c
, disk_handle
, cdb
, cdb_len
,
3833 * Running in struct Scsi_Host->host_lock less mode using LLD internal
3834 * struct ctlr_info *h->lock w/ spin_lock_irqsave() protection.
3836 static int hpsa_scsi_queue_command(struct Scsi_Host
*sh
, struct scsi_cmnd
*cmd
)
3838 struct ctlr_info
*h
;
3839 struct hpsa_scsi_dev_t
*dev
;
3840 unsigned char scsi3addr
[8];
3841 struct CommandList
*c
;
3844 /* Get the ptr to our adapter structure out of cmd->host. */
3845 h
= sdev_to_hba(cmd
->device
);
3846 dev
= cmd
->device
->hostdata
;
3848 cmd
->result
= DID_NO_CONNECT
<< 16;
3849 cmd
->scsi_done(cmd
);
3852 memcpy(scsi3addr
, dev
->scsi3addr
, sizeof(scsi3addr
));
3854 if (unlikely(lockup_detected(h
))) {
3855 cmd
->result
= DID_ERROR
<< 16;
3856 cmd
->scsi_done(cmd
);
3860 if (c
== NULL
) { /* trouble... */
3861 dev_err(&h
->pdev
->dev
, "cmd_alloc returned NULL!\n");
3862 return SCSI_MLQUEUE_HOST_BUSY
;
3865 /* Fill in the command list header */
3866 /* save c in case we have to abort it */
3867 cmd
->host_scribble
= (unsigned char *) c
;
3869 c
->cmd_type
= CMD_SCSI
;
3872 /* Call alternate submit routine for I/O accelerated commands.
3873 * Retries always go down the normal I/O path.
3875 if (likely(cmd
->retries
== 0 &&
3876 cmd
->request
->cmd_type
== REQ_TYPE_FS
&&
3877 h
->acciopath_status
)) {
3878 if (dev
->offload_enabled
) {
3879 rc
= hpsa_scsi_ioaccel_raid_map(h
, c
);
3881 return 0; /* Sent on ioaccel path */
3882 if (rc
< 0) { /* scsi_dma_map failed. */
3884 return SCSI_MLQUEUE_HOST_BUSY
;
3886 } else if (dev
->ioaccel_handle
) {
3887 rc
= hpsa_scsi_ioaccel_direct_map(h
, c
);
3889 return 0; /* Sent on direct map path */
3890 if (rc
< 0) { /* scsi_dma_map failed. */
3892 return SCSI_MLQUEUE_HOST_BUSY
;
3897 c
->Header
.ReplyQueue
= 0; /* unused in simple mode */
3898 memcpy(&c
->Header
.LUN
.LunAddrBytes
[0], &scsi3addr
[0], 8);
3899 c
->Header
.tag
= cpu_to_le64((c
->cmdindex
<< DIRECT_LOOKUP_SHIFT
) |
3902 /* Fill in the request block... */
3904 c
->Request
.Timeout
= 0;
3905 memset(c
->Request
.CDB
, 0, sizeof(c
->Request
.CDB
));
3906 BUG_ON(cmd
->cmd_len
> sizeof(c
->Request
.CDB
));
3907 c
->Request
.CDBLen
= cmd
->cmd_len
;
3908 memcpy(c
->Request
.CDB
, cmd
->cmnd
, cmd
->cmd_len
);
3909 switch (cmd
->sc_data_direction
) {
3911 c
->Request
.type_attr_dir
=
3912 TYPE_ATTR_DIR(TYPE_CMD
, ATTR_SIMPLE
, XFER_WRITE
);
3914 case DMA_FROM_DEVICE
:
3915 c
->Request
.type_attr_dir
=
3916 TYPE_ATTR_DIR(TYPE_CMD
, ATTR_SIMPLE
, XFER_READ
);
3919 c
->Request
.type_attr_dir
=
3920 TYPE_ATTR_DIR(TYPE_CMD
, ATTR_SIMPLE
, XFER_NONE
);
3922 case DMA_BIDIRECTIONAL
:
3923 /* This can happen if a buggy application does a scsi passthru
3924 * and sets both inlen and outlen to non-zero. ( see
3925 * ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() )
3928 c
->Request
.type_attr_dir
=
3929 TYPE_ATTR_DIR(TYPE_CMD
, ATTR_SIMPLE
, XFER_RSVD
);
3930 /* This is technically wrong, and hpsa controllers should
3931 * reject it with CMD_INVALID, which is the most correct
3932 * response, but non-fibre backends appear to let it
3933 * slide by, and give the same results as if this field
3934 * were set correctly. Either way is acceptable for
3935 * our purposes here.
3941 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
3942 cmd
->sc_data_direction
);
3947 if (hpsa_scatter_gather(h
, c
, cmd
) < 0) { /* Fill SG list */
3949 return SCSI_MLQUEUE_HOST_BUSY
;
3951 enqueue_cmd_and_start_io(h
, c
);
3952 /* the cmd'll come back via intr handler in complete_scsi_command() */
3956 static int do_not_scan_if_controller_locked_up(struct ctlr_info
*h
)
3958 unsigned long flags
;
3961 * Don't let rescans be initiated on a controller known
3962 * to be locked up. If the controller locks up *during*
3963 * a rescan, that thread is probably hosed, but at least
3964 * we can prevent new rescan threads from piling up on a
3965 * locked up controller.
3967 if (unlikely(lockup_detected(h
))) {
3968 spin_lock_irqsave(&h
->scan_lock
, flags
);
3969 h
->scan_finished
= 1;
3970 wake_up_all(&h
->scan_wait_queue
);
3971 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
3977 static void hpsa_scan_start(struct Scsi_Host
*sh
)
3979 struct ctlr_info
*h
= shost_to_hba(sh
);
3980 unsigned long flags
;
3982 if (do_not_scan_if_controller_locked_up(h
))
3985 /* wait until any scan already in progress is finished. */
3987 spin_lock_irqsave(&h
->scan_lock
, flags
);
3988 if (h
->scan_finished
)
3990 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
3991 wait_event(h
->scan_wait_queue
, h
->scan_finished
);
3992 /* Note: We don't need to worry about a race between this
3993 * thread and driver unload because the midlayer will
3994 * have incremented the reference count, so unload won't
3995 * happen if we're in here.
3998 h
->scan_finished
= 0; /* mark scan as in progress */
3999 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4001 if (do_not_scan_if_controller_locked_up(h
))
4004 hpsa_update_scsi_devices(h
, h
->scsi_host
->host_no
);
4006 spin_lock_irqsave(&h
->scan_lock
, flags
);
4007 h
->scan_finished
= 1; /* mark scan as finished. */
4008 wake_up_all(&h
->scan_wait_queue
);
4009 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4012 static int hpsa_change_queue_depth(struct scsi_device
*sdev
, int qdepth
)
4014 struct ctlr_info
*h
= sdev_to_hba(sdev
);
4019 if (qdepth
> h
->nr_cmds
)
4020 qdepth
= h
->nr_cmds
;
4021 scsi_change_queue_depth(sdev
, qdepth
);
4022 return sdev
->queue_depth
;
4025 static int hpsa_scan_finished(struct Scsi_Host
*sh
,
4026 unsigned long elapsed_time
)
4028 struct ctlr_info
*h
= shost_to_hba(sh
);
4029 unsigned long flags
;
4032 spin_lock_irqsave(&h
->scan_lock
, flags
);
4033 finished
= h
->scan_finished
;
4034 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4038 static void hpsa_unregister_scsi(struct ctlr_info
*h
)
4040 /* we are being forcibly unloaded, and may not refuse. */
4041 scsi_remove_host(h
->scsi_host
);
4042 scsi_host_put(h
->scsi_host
);
4043 h
->scsi_host
= NULL
;
4046 static int hpsa_register_scsi(struct ctlr_info
*h
)
4048 struct Scsi_Host
*sh
;
4051 sh
= scsi_host_alloc(&hpsa_driver_template
, sizeof(h
));
4058 sh
->max_channel
= 3;
4059 sh
->max_cmd_len
= MAX_COMMAND_SIZE
;
4060 sh
->max_lun
= HPSA_MAX_LUN
;
4061 sh
->max_id
= HPSA_MAX_LUN
;
4062 sh
->can_queue
= h
->nr_cmds
;
4063 if (h
->hba_mode_enabled
)
4064 sh
->cmd_per_lun
= 7;
4066 sh
->cmd_per_lun
= h
->nr_cmds
;
4067 sh
->sg_tablesize
= h
->maxsgentries
;
4069 sh
->hostdata
[0] = (unsigned long) h
;
4070 sh
->irq
= h
->intr
[h
->intr_mode
];
4071 sh
->unique_id
= sh
->irq
;
4072 error
= scsi_add_host(sh
, &h
->pdev
->dev
);
4079 dev_err(&h
->pdev
->dev
, "%s: scsi_add_host"
4080 " failed for controller %d\n", __func__
, h
->ctlr
);
4084 dev_err(&h
->pdev
->dev
, "%s: scsi_host_alloc"
4085 " failed for controller %d\n", __func__
, h
->ctlr
);
4089 static int wait_for_device_to_become_ready(struct ctlr_info
*h
,
4090 unsigned char lunaddr
[])
4094 int waittime
= 1; /* seconds */
4095 struct CommandList
*c
;
4097 c
= cmd_special_alloc(h
);
4099 dev_warn(&h
->pdev
->dev
, "out of memory in "
4100 "wait_for_device_to_become_ready.\n");
4104 /* Send test unit ready until device ready, or give up. */
4105 while (count
< HPSA_TUR_RETRY_LIMIT
) {
4107 /* Wait for a bit. do this first, because if we send
4108 * the TUR right away, the reset will just abort it.
4110 msleep(1000 * waittime
);
4112 rc
= 0; /* Device ready. */
4114 /* Increase wait time with each try, up to a point. */
4115 if (waittime
< HPSA_MAX_WAIT_INTERVAL_SECS
)
4116 waittime
= waittime
* 2;
4118 /* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
4119 (void) fill_cmd(c
, TEST_UNIT_READY
, h
,
4120 NULL
, 0, 0, lunaddr
, TYPE_CMD
);
4121 hpsa_scsi_do_simple_cmd_core(h
, c
);
4122 /* no unmap needed here because no data xfer. */
4124 if (c
->err_info
->CommandStatus
== CMD_SUCCESS
)
4127 if (c
->err_info
->CommandStatus
== CMD_TARGET_STATUS
&&
4128 c
->err_info
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
&&
4129 (c
->err_info
->SenseInfo
[2] == NO_SENSE
||
4130 c
->err_info
->SenseInfo
[2] == UNIT_ATTENTION
))
4133 dev_warn(&h
->pdev
->dev
, "waiting %d secs "
4134 "for device to become ready.\n", waittime
);
4135 rc
= 1; /* device not ready. */
4139 dev_warn(&h
->pdev
->dev
, "giving up on device.\n");
4141 dev_warn(&h
->pdev
->dev
, "device is ready.\n");
4143 cmd_special_free(h
, c
);
4147 /* Need at least one of these error handlers to keep ../scsi/hosts.c from
4148 * complaining. Doing a host- or bus-reset can't do anything good here.
4150 static int hpsa_eh_device_reset_handler(struct scsi_cmnd
*scsicmd
)
4153 struct ctlr_info
*h
;
4154 struct hpsa_scsi_dev_t
*dev
;
4156 /* find the controller to which the command to be aborted was sent */
4157 h
= sdev_to_hba(scsicmd
->device
);
4158 if (h
== NULL
) /* paranoia */
4160 dev
= scsicmd
->device
->hostdata
;
4162 dev_err(&h
->pdev
->dev
, "hpsa_eh_device_reset_handler: "
4163 "device lookup failed.\n");
4166 dev_warn(&h
->pdev
->dev
, "resetting device %d:%d:%d:%d\n",
4167 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
);
4168 /* send a reset to the SCSI LUN which the command was sent to */
4169 rc
= hpsa_send_reset(h
, dev
->scsi3addr
, HPSA_RESET_TYPE_LUN
);
4170 if (rc
== 0 && wait_for_device_to_become_ready(h
, dev
->scsi3addr
) == 0)
4173 dev_warn(&h
->pdev
->dev
, "resetting device failed.\n");
4177 static void swizzle_abort_tag(u8
*tag
)
4181 memcpy(original_tag
, tag
, 8);
4182 tag
[0] = original_tag
[3];
4183 tag
[1] = original_tag
[2];
4184 tag
[2] = original_tag
[1];
4185 tag
[3] = original_tag
[0];
4186 tag
[4] = original_tag
[7];
4187 tag
[5] = original_tag
[6];
4188 tag
[6] = original_tag
[5];
4189 tag
[7] = original_tag
[4];
4192 static void hpsa_get_tag(struct ctlr_info
*h
,
4193 struct CommandList
*c
, __le32
*taglower
, __le32
*tagupper
)
4196 if (c
->cmd_type
== CMD_IOACCEL1
) {
4197 struct io_accel1_cmd
*cm1
= (struct io_accel1_cmd
*)
4198 &h
->ioaccel_cmd_pool
[c
->cmdindex
];
4199 tag
= le64_to_cpu(cm1
->tag
);
4200 *tagupper
= cpu_to_le32(tag
>> 32);
4201 *taglower
= cpu_to_le32(tag
);
4204 if (c
->cmd_type
== CMD_IOACCEL2
) {
4205 struct io_accel2_cmd
*cm2
= (struct io_accel2_cmd
*)
4206 &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
4207 /* upper tag not used in ioaccel2 mode */
4208 memset(tagupper
, 0, sizeof(*tagupper
));
4209 *taglower
= cm2
->Tag
;
4212 tag
= le64_to_cpu(c
->Header
.tag
);
4213 *tagupper
= cpu_to_le32(tag
>> 32);
4214 *taglower
= cpu_to_le32(tag
);
4217 static int hpsa_send_abort(struct ctlr_info
*h
, unsigned char *scsi3addr
,
4218 struct CommandList
*abort
, int swizzle
)
4221 struct CommandList
*c
;
4222 struct ErrorInfo
*ei
;
4223 __le32 tagupper
, taglower
;
4225 c
= cmd_special_alloc(h
);
4226 if (c
== NULL
) { /* trouble... */
4227 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
4231 /* fill_cmd can't fail here, no buffer to map */
4232 (void) fill_cmd(c
, HPSA_ABORT_MSG
, h
, abort
,
4233 0, 0, scsi3addr
, TYPE_MSG
);
4235 swizzle_abort_tag(&c
->Request
.CDB
[4]);
4236 hpsa_scsi_do_simple_cmd_core(h
, c
);
4237 hpsa_get_tag(h
, abort
, &taglower
, &tagupper
);
4238 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: do_simple_cmd_core completed.\n",
4239 __func__
, tagupper
, taglower
);
4240 /* no unmap needed here because no data xfer. */
4243 switch (ei
->CommandStatus
) {
4246 case CMD_UNABORTABLE
: /* Very common, don't make noise. */
4250 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: interpreting error.\n",
4251 __func__
, tagupper
, taglower
);
4252 hpsa_scsi_interpret_error(h
, c
);
4256 cmd_special_free(h
, c
);
4257 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: Finished.\n",
4258 __func__
, tagupper
, taglower
);
4263 * hpsa_find_cmd_in_queue
4265 * Used to determine whether a command (find) is still present
4266 * in queue_head. Optionally excludes the last element of queue_head.
4268 * This is used to avoid unnecessary aborts. Commands in h->reqQ have
4269 * not yet been submitted, and so can be aborted by the driver without
4270 * sending an abort to the hardware.
4272 * Returns pointer to command if found in queue, NULL otherwise.
4274 static struct CommandList
*hpsa_find_cmd_in_queue(struct ctlr_info
*h
,
4275 struct scsi_cmnd
*find
, struct list_head
*queue_head
)
4277 unsigned long flags
;
4278 struct CommandList
*c
= NULL
; /* ptr into cmpQ */
4282 spin_lock_irqsave(&h
->lock
, flags
);
4283 list_for_each_entry(c
, queue_head
, list
) {
4284 if (c
->scsi_cmd
== NULL
) /* e.g.: passthru ioctl */
4286 if (c
->scsi_cmd
== find
) {
4287 spin_unlock_irqrestore(&h
->lock
, flags
);
4291 spin_unlock_irqrestore(&h
->lock
, flags
);
4295 static struct CommandList
*hpsa_find_cmd_in_queue_by_tag(struct ctlr_info
*h
,
4296 u8
*tag
, struct list_head
*queue_head
)
4298 unsigned long flags
;
4299 struct CommandList
*c
;
4301 spin_lock_irqsave(&h
->lock
, flags
);
4302 list_for_each_entry(c
, queue_head
, list
) {
4303 if (memcmp(&c
->Header
.tag
, tag
, 8) != 0)
4305 spin_unlock_irqrestore(&h
->lock
, flags
);
4308 spin_unlock_irqrestore(&h
->lock
, flags
);
4312 /* ioaccel2 path firmware cannot handle abort task requests.
4313 * Change abort requests to physical target reset, and send to the
4314 * address of the physical disk used for the ioaccel 2 command.
4315 * Return 0 on success (IO_OK)
4319 static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info
*h
,
4320 unsigned char *scsi3addr
, struct CommandList
*abort
)
4323 struct scsi_cmnd
*scmd
; /* scsi command within request being aborted */
4324 struct hpsa_scsi_dev_t
*dev
; /* device to which scsi cmd was sent */
4325 unsigned char phys_scsi3addr
[8]; /* addr of phys disk with volume */
4326 unsigned char *psa
= &phys_scsi3addr
[0];
4328 /* Get a pointer to the hpsa logical device. */
4329 scmd
= (struct scsi_cmnd
*) abort
->scsi_cmd
;
4330 dev
= (struct hpsa_scsi_dev_t
*)(scmd
->device
->hostdata
);
4332 dev_warn(&h
->pdev
->dev
,
4333 "Cannot abort: no device pointer for command.\n");
4334 return -1; /* not abortable */
4337 if (h
->raid_offload_debug
> 0)
4338 dev_info(&h
->pdev
->dev
,
4339 "Reset as abort: Abort requested on C%d:B%d:T%d:L%d scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4340 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
,
4341 scsi3addr
[0], scsi3addr
[1], scsi3addr
[2], scsi3addr
[3],
4342 scsi3addr
[4], scsi3addr
[5], scsi3addr
[6], scsi3addr
[7]);
4344 if (!dev
->offload_enabled
) {
4345 dev_warn(&h
->pdev
->dev
,
4346 "Can't abort: device is not operating in HP SSD Smart Path mode.\n");
4347 return -1; /* not abortable */
4350 /* Incoming scsi3addr is logical addr. We need physical disk addr. */
4351 if (!hpsa_get_pdisk_of_ioaccel2(h
, abort
, psa
)) {
4352 dev_warn(&h
->pdev
->dev
, "Can't abort: Failed lookup of physical address.\n");
4353 return -1; /* not abortable */
4356 /* send the reset */
4357 if (h
->raid_offload_debug
> 0)
4358 dev_info(&h
->pdev
->dev
,
4359 "Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4360 psa
[0], psa
[1], psa
[2], psa
[3],
4361 psa
[4], psa
[5], psa
[6], psa
[7]);
4362 rc
= hpsa_send_reset(h
, psa
, HPSA_RESET_TYPE_TARGET
);
4364 dev_warn(&h
->pdev
->dev
,
4365 "Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4366 psa
[0], psa
[1], psa
[2], psa
[3],
4367 psa
[4], psa
[5], psa
[6], psa
[7]);
4368 return rc
; /* failed to reset */
4371 /* wait for device to recover */
4372 if (wait_for_device_to_become_ready(h
, psa
) != 0) {
4373 dev_warn(&h
->pdev
->dev
,
4374 "Reset as abort: Failed: Device never recovered from reset: 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4375 psa
[0], psa
[1], psa
[2], psa
[3],
4376 psa
[4], psa
[5], psa
[6], psa
[7]);
4377 return -1; /* failed to recover */
4380 /* device recovered */
4381 dev_info(&h
->pdev
->dev
,
4382 "Reset as abort: Device recovered from reset: scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4383 psa
[0], psa
[1], psa
[2], psa
[3],
4384 psa
[4], psa
[5], psa
[6], psa
[7]);
4386 return rc
; /* success */
4389 /* Some Smart Arrays need the abort tag swizzled, and some don't. It's hard to
4390 * tell which kind we're dealing with, so we send the abort both ways. There
4391 * shouldn't be any collisions between swizzled and unswizzled tags due to the
4392 * way we construct our tags but we check anyway in case the assumptions which
4393 * make this true someday become false.
4395 static int hpsa_send_abort_both_ways(struct ctlr_info
*h
,
4396 unsigned char *scsi3addr
, struct CommandList
*abort
)
4399 struct CommandList
*c
;
4400 int rc
= 0, rc2
= 0;
4402 /* ioccelerator mode 2 commands should be aborted via the
4403 * accelerated path, since RAID path is unaware of these commands,
4404 * but underlying firmware can't handle abort TMF.
4405 * Change abort to physical device reset.
4407 if (abort
->cmd_type
== CMD_IOACCEL2
)
4408 return hpsa_send_reset_as_abort_ioaccel2(h
, scsi3addr
, abort
);
4410 /* we do not expect to find the swizzled tag in our queue, but
4411 * check anyway just to be sure the assumptions which make this
4412 * the case haven't become wrong.
4414 memcpy(swizzled_tag
, &abort
->Request
.CDB
[4], 8);
4415 swizzle_abort_tag(swizzled_tag
);
4416 c
= hpsa_find_cmd_in_queue_by_tag(h
, swizzled_tag
, &h
->cmpQ
);
4418 dev_warn(&h
->pdev
->dev
, "Unexpectedly found byte-swapped tag in completion queue.\n");
4419 return hpsa_send_abort(h
, scsi3addr
, abort
, 0);
4421 rc
= hpsa_send_abort(h
, scsi3addr
, abort
, 0);
4423 /* if the command is still in our queue, we can't conclude that it was
4424 * aborted (it might have just completed normally) but in any case
4425 * we don't need to try to abort it another way.
4427 c
= hpsa_find_cmd_in_queue(h
, abort
->scsi_cmd
, &h
->cmpQ
);
4429 rc2
= hpsa_send_abort(h
, scsi3addr
, abort
, 1);
4433 /* Send an abort for the specified command.
4434 * If the device and controller support it,
4435 * send a task abort request.
4437 static int hpsa_eh_abort_handler(struct scsi_cmnd
*sc
)
4441 struct ctlr_info
*h
;
4442 struct hpsa_scsi_dev_t
*dev
;
4443 struct CommandList
*abort
; /* pointer to command to be aborted */
4444 struct CommandList
*found
;
4445 struct scsi_cmnd
*as
; /* ptr to scsi cmd inside aborted command. */
4446 char msg
[256]; /* For debug messaging. */
4448 __le32 tagupper
, taglower
;
4450 /* Find the controller of the command to be aborted */
4451 h
= sdev_to_hba(sc
->device
);
4453 "ABORT REQUEST FAILED, Controller lookup failed.\n"))
4456 /* Check that controller supports some kind of task abort */
4457 if (!(HPSATMF_PHYS_TASK_ABORT
& h
->TMFSupportFlags
) &&
4458 !(HPSATMF_LOG_TASK_ABORT
& h
->TMFSupportFlags
))
4461 memset(msg
, 0, sizeof(msg
));
4462 ml
+= sprintf(msg
+ml
, "ABORT REQUEST on C%d:B%d:T%d:L%llu ",
4463 h
->scsi_host
->host_no
, sc
->device
->channel
,
4464 sc
->device
->id
, sc
->device
->lun
);
4466 /* Find the device of the command to be aborted */
4467 dev
= sc
->device
->hostdata
;
4469 dev_err(&h
->pdev
->dev
, "%s FAILED, Device lookup failed.\n",
4474 /* Get SCSI command to be aborted */
4475 abort
= (struct CommandList
*) sc
->host_scribble
;
4476 if (abort
== NULL
) {
4477 dev_err(&h
->pdev
->dev
, "%s FAILED, Command to abort is NULL.\n",
4481 hpsa_get_tag(h
, abort
, &taglower
, &tagupper
);
4482 ml
+= sprintf(msg
+ml
, "Tag:0x%08x:%08x ", tagupper
, taglower
);
4483 as
= (struct scsi_cmnd
*) abort
->scsi_cmd
;
4485 ml
+= sprintf(msg
+ml
, "Command:0x%x SN:0x%lx ",
4486 as
->cmnd
[0], as
->serial_number
);
4487 dev_dbg(&h
->pdev
->dev
, "%s\n", msg
);
4488 dev_warn(&h
->pdev
->dev
, "Abort request on C%d:B%d:T%d:L%d\n",
4489 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
);
4491 /* Search reqQ to See if command is queued but not submitted,
4492 * if so, complete the command with aborted status and remove
4495 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->reqQ
);
4497 found
->err_info
->CommandStatus
= CMD_ABORTED
;
4499 dev_info(&h
->pdev
->dev
, "%s Request SUCCEEDED (driver queue).\n",
4504 /* not in reqQ, if also not in cmpQ, must have already completed */
4505 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->cmpQ
);
4507 dev_dbg(&h
->pdev
->dev
, "%s Request SUCCEEDED (not known to driver).\n",
4513 * Command is in flight, or possibly already completed
4514 * by the firmware (but not to the scsi mid layer) but we can't
4515 * distinguish which. Send the abort down.
4517 rc
= hpsa_send_abort_both_ways(h
, dev
->scsi3addr
, abort
);
4519 dev_dbg(&h
->pdev
->dev
, "%s Request FAILED.\n", msg
);
4520 dev_warn(&h
->pdev
->dev
, "FAILED abort on device C%d:B%d:T%d:L%d\n",
4521 h
->scsi_host
->host_no
,
4522 dev
->bus
, dev
->target
, dev
->lun
);
4525 dev_info(&h
->pdev
->dev
, "%s REQUEST SUCCEEDED.\n", msg
);
4527 /* If the abort(s) above completed and actually aborted the
4528 * command, then the command to be aborted should already be
4529 * completed. If not, wait around a bit more to see if they
4530 * manage to complete normally.
4532 #define ABORT_COMPLETE_WAIT_SECS 30
4533 for (i
= 0; i
< ABORT_COMPLETE_WAIT_SECS
* 10; i
++) {
4534 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->cmpQ
);
4539 dev_warn(&h
->pdev
->dev
, "%s FAILED. Aborted command has not completed after %d seconds.\n",
4540 msg
, ABORT_COMPLETE_WAIT_SECS
);
4546 * For operations that cannot sleep, a command block is allocated at init,
4547 * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track
4548 * which ones are free or in use. Lock must be held when calling this.
4549 * cmd_free() is the complement.
4551 static struct CommandList
*cmd_alloc(struct ctlr_info
*h
)
4553 struct CommandList
*c
;
4555 union u64bit temp64
;
4556 dma_addr_t cmd_dma_handle
, err_dma_handle
;
4559 /* There is some *extremely* small but non-zero chance that that
4560 * multiple threads could get in here, and one thread could
4561 * be scanning through the list of bits looking for a free
4562 * one, but the free ones are always behind him, and other
4563 * threads sneak in behind him and eat them before he can
4564 * get to them, so that while there is always a free one, a
4565 * very unlucky thread might be starved anyway, never able to
4566 * beat the other threads. In reality, this happens so
4567 * infrequently as to be indistinguishable from never.
4572 i
= find_first_zero_bit(h
->cmd_pool_bits
, h
->nr_cmds
);
4573 if (i
== h
->nr_cmds
)
4576 } while (test_and_set_bit(i
& (BITS_PER_LONG
- 1),
4577 h
->cmd_pool_bits
+ (i
/ BITS_PER_LONG
)) != 0 &&
4580 /* Thread got starved? We do not expect this to ever happen. */
4581 if (loopcount
>= 10)
4584 c
= h
->cmd_pool
+ i
;
4585 memset(c
, 0, sizeof(*c
));
4586 cmd_dma_handle
= h
->cmd_pool_dhandle
4588 c
->err_info
= h
->errinfo_pool
+ i
;
4589 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
4590 err_dma_handle
= h
->errinfo_pool_dhandle
4591 + i
* sizeof(*c
->err_info
);
4595 INIT_LIST_HEAD(&c
->list
);
4596 c
->busaddr
= (u32
) cmd_dma_handle
;
4597 temp64
.val
= (u64
) err_dma_handle
;
4598 c
->ErrDesc
.Addr
= cpu_to_le64(err_dma_handle
);
4599 c
->ErrDesc
.Len
= cpu_to_le32(sizeof(*c
->err_info
));
4605 /* For operations that can wait for kmalloc to possibly sleep,
4606 * this routine can be called. Lock need not be held to call
4607 * cmd_special_alloc. cmd_special_free() is the complement.
4609 static struct CommandList
*cmd_special_alloc(struct ctlr_info
*h
)
4611 struct CommandList
*c
;
4612 dma_addr_t cmd_dma_handle
, err_dma_handle
;
4614 c
= pci_zalloc_consistent(h
->pdev
, sizeof(*c
), &cmd_dma_handle
);
4618 c
->cmd_type
= CMD_SCSI
;
4621 c
->err_info
= pci_zalloc_consistent(h
->pdev
, sizeof(*c
->err_info
),
4624 if (c
->err_info
== NULL
) {
4625 pci_free_consistent(h
->pdev
,
4626 sizeof(*c
), c
, cmd_dma_handle
);
4630 INIT_LIST_HEAD(&c
->list
);
4631 c
->busaddr
= (u32
) cmd_dma_handle
;
4632 c
->ErrDesc
.Addr
= cpu_to_le64(err_dma_handle
);
4633 c
->ErrDesc
.Len
= cpu_to_le32(sizeof(*c
->err_info
));
4639 static void cmd_free(struct ctlr_info
*h
, struct CommandList
*c
)
4643 i
= c
- h
->cmd_pool
;
4644 clear_bit(i
& (BITS_PER_LONG
- 1),
4645 h
->cmd_pool_bits
+ (i
/ BITS_PER_LONG
));
4648 static void cmd_special_free(struct ctlr_info
*h
, struct CommandList
*c
)
4650 pci_free_consistent(h
->pdev
, sizeof(*c
->err_info
),
4652 (dma_addr_t
) le64_to_cpu(c
->ErrDesc
.Addr
));
4653 pci_free_consistent(h
->pdev
, sizeof(*c
),
4654 c
, (dma_addr_t
) (c
->busaddr
& DIRECT_LOOKUP_MASK
));
4657 #ifdef CONFIG_COMPAT
4659 static int hpsa_ioctl32_passthru(struct scsi_device
*dev
, int cmd
,
4662 IOCTL32_Command_struct __user
*arg32
=
4663 (IOCTL32_Command_struct __user
*) arg
;
4664 IOCTL_Command_struct arg64
;
4665 IOCTL_Command_struct __user
*p
= compat_alloc_user_space(sizeof(arg64
));
4669 memset(&arg64
, 0, sizeof(arg64
));
4671 err
|= copy_from_user(&arg64
.LUN_info
, &arg32
->LUN_info
,
4672 sizeof(arg64
.LUN_info
));
4673 err
|= copy_from_user(&arg64
.Request
, &arg32
->Request
,
4674 sizeof(arg64
.Request
));
4675 err
|= copy_from_user(&arg64
.error_info
, &arg32
->error_info
,
4676 sizeof(arg64
.error_info
));
4677 err
|= get_user(arg64
.buf_size
, &arg32
->buf_size
);
4678 err
|= get_user(cp
, &arg32
->buf
);
4679 arg64
.buf
= compat_ptr(cp
);
4680 err
|= copy_to_user(p
, &arg64
, sizeof(arg64
));
4685 err
= hpsa_ioctl(dev
, CCISS_PASSTHRU
, p
);
4688 err
|= copy_in_user(&arg32
->error_info
, &p
->error_info
,
4689 sizeof(arg32
->error_info
));
4695 static int hpsa_ioctl32_big_passthru(struct scsi_device
*dev
,
4696 int cmd
, void __user
*arg
)
4698 BIG_IOCTL32_Command_struct __user
*arg32
=
4699 (BIG_IOCTL32_Command_struct __user
*) arg
;
4700 BIG_IOCTL_Command_struct arg64
;
4701 BIG_IOCTL_Command_struct __user
*p
=
4702 compat_alloc_user_space(sizeof(arg64
));
4706 memset(&arg64
, 0, sizeof(arg64
));
4708 err
|= copy_from_user(&arg64
.LUN_info
, &arg32
->LUN_info
,
4709 sizeof(arg64
.LUN_info
));
4710 err
|= copy_from_user(&arg64
.Request
, &arg32
->Request
,
4711 sizeof(arg64
.Request
));
4712 err
|= copy_from_user(&arg64
.error_info
, &arg32
->error_info
,
4713 sizeof(arg64
.error_info
));
4714 err
|= get_user(arg64
.buf_size
, &arg32
->buf_size
);
4715 err
|= get_user(arg64
.malloc_size
, &arg32
->malloc_size
);
4716 err
|= get_user(cp
, &arg32
->buf
);
4717 arg64
.buf
= compat_ptr(cp
);
4718 err
|= copy_to_user(p
, &arg64
, sizeof(arg64
));
4723 err
= hpsa_ioctl(dev
, CCISS_BIG_PASSTHRU
, p
);
4726 err
|= copy_in_user(&arg32
->error_info
, &p
->error_info
,
4727 sizeof(arg32
->error_info
));
4733 static int hpsa_compat_ioctl(struct scsi_device
*dev
, int cmd
, void __user
*arg
)
4736 case CCISS_GETPCIINFO
:
4737 case CCISS_GETINTINFO
:
4738 case CCISS_SETINTINFO
:
4739 case CCISS_GETNODENAME
:
4740 case CCISS_SETNODENAME
:
4741 case CCISS_GETHEARTBEAT
:
4742 case CCISS_GETBUSTYPES
:
4743 case CCISS_GETFIRMVER
:
4744 case CCISS_GETDRIVVER
:
4745 case CCISS_REVALIDVOLS
:
4746 case CCISS_DEREGDISK
:
4747 case CCISS_REGNEWDISK
:
4749 case CCISS_RESCANDISK
:
4750 case CCISS_GETLUNINFO
:
4751 return hpsa_ioctl(dev
, cmd
, arg
);
4753 case CCISS_PASSTHRU32
:
4754 return hpsa_ioctl32_passthru(dev
, cmd
, arg
);
4755 case CCISS_BIG_PASSTHRU32
:
4756 return hpsa_ioctl32_big_passthru(dev
, cmd
, arg
);
4759 return -ENOIOCTLCMD
;
4764 static int hpsa_getpciinfo_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4766 struct hpsa_pci_info pciinfo
;
4770 pciinfo
.domain
= pci_domain_nr(h
->pdev
->bus
);
4771 pciinfo
.bus
= h
->pdev
->bus
->number
;
4772 pciinfo
.dev_fn
= h
->pdev
->devfn
;
4773 pciinfo
.board_id
= h
->board_id
;
4774 if (copy_to_user(argp
, &pciinfo
, sizeof(pciinfo
)))
4779 static int hpsa_getdrivver_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4781 DriverVer_type DriverVer
;
4782 unsigned char vmaj
, vmin
, vsubmin
;
4785 rc
= sscanf(HPSA_DRIVER_VERSION
, "%hhu.%hhu.%hhu",
4786 &vmaj
, &vmin
, &vsubmin
);
4788 dev_info(&h
->pdev
->dev
, "driver version string '%s' "
4789 "unrecognized.", HPSA_DRIVER_VERSION
);
4794 DriverVer
= (vmaj
<< 16) | (vmin
<< 8) | vsubmin
;
4797 if (copy_to_user(argp
, &DriverVer
, sizeof(DriverVer_type
)))
4802 static int hpsa_passthru_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4804 IOCTL_Command_struct iocommand
;
4805 struct CommandList
*c
;
4812 if (!capable(CAP_SYS_RAWIO
))
4814 if (copy_from_user(&iocommand
, argp
, sizeof(iocommand
)))
4816 if ((iocommand
.buf_size
< 1) &&
4817 (iocommand
.Request
.Type
.Direction
!= XFER_NONE
)) {
4820 if (iocommand
.buf_size
> 0) {
4821 buff
= kmalloc(iocommand
.buf_size
, GFP_KERNEL
);
4824 if (iocommand
.Request
.Type
.Direction
& XFER_WRITE
) {
4825 /* Copy the data into the buffer we created */
4826 if (copy_from_user(buff
, iocommand
.buf
,
4827 iocommand
.buf_size
)) {
4832 memset(buff
, 0, iocommand
.buf_size
);
4835 c
= cmd_special_alloc(h
);
4840 /* Fill in the command type */
4841 c
->cmd_type
= CMD_IOCTL_PEND
;
4842 /* Fill in Command Header */
4843 c
->Header
.ReplyQueue
= 0; /* unused in simple mode */
4844 if (iocommand
.buf_size
> 0) { /* buffer to fill */
4845 c
->Header
.SGList
= 1;
4846 c
->Header
.SGTotal
= cpu_to_le16(1);
4847 } else { /* no buffers to fill */
4848 c
->Header
.SGList
= 0;
4849 c
->Header
.SGTotal
= cpu_to_le16(0);
4851 memcpy(&c
->Header
.LUN
, &iocommand
.LUN_info
, sizeof(c
->Header
.LUN
));
4852 /* use the kernel address the cmd block for tag */
4853 c
->Header
.tag
= cpu_to_le64(c
->busaddr
);
4855 /* Fill in Request block */
4856 memcpy(&c
->Request
, &iocommand
.Request
,
4857 sizeof(c
->Request
));
4859 /* Fill in the scatter gather information */
4860 if (iocommand
.buf_size
> 0) {
4861 temp64
= pci_map_single(h
->pdev
, buff
,
4862 iocommand
.buf_size
, PCI_DMA_BIDIRECTIONAL
);
4863 if (dma_mapping_error(&h
->pdev
->dev
, (dma_addr_t
) temp64
)) {
4864 c
->SG
[0].Addr
= cpu_to_le64(0);
4865 c
->SG
[0].Len
= cpu_to_le32(0);
4869 c
->SG
[0].Addr
= cpu_to_le64(temp64
);
4870 c
->SG
[0].Len
= cpu_to_le32(iocommand
.buf_size
);
4871 c
->SG
[0].Ext
= cpu_to_le32(HPSA_SG_LAST
); /* not chaining */
4873 hpsa_scsi_do_simple_cmd_core_if_no_lockup(h
, c
);
4874 if (iocommand
.buf_size
> 0)
4875 hpsa_pci_unmap(h
->pdev
, c
, 1, PCI_DMA_BIDIRECTIONAL
);
4876 check_ioctl_unit_attention(h
, c
);
4878 /* Copy the error information out */
4879 memcpy(&iocommand
.error_info
, c
->err_info
,
4880 sizeof(iocommand
.error_info
));
4881 if (copy_to_user(argp
, &iocommand
, sizeof(iocommand
))) {
4885 if ((iocommand
.Request
.Type
.Direction
& XFER_READ
) &&
4886 iocommand
.buf_size
> 0) {
4887 /* Copy the data out of the buffer we created */
4888 if (copy_to_user(iocommand
.buf
, buff
, iocommand
.buf_size
)) {
4894 cmd_special_free(h
, c
);
4900 static int hpsa_big_passthru_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4902 BIG_IOCTL_Command_struct
*ioc
;
4903 struct CommandList
*c
;
4904 unsigned char **buff
= NULL
;
4905 int *buff_size
= NULL
;
4911 BYTE __user
*data_ptr
;
4915 if (!capable(CAP_SYS_RAWIO
))
4917 ioc
= (BIG_IOCTL_Command_struct
*)
4918 kmalloc(sizeof(*ioc
), GFP_KERNEL
);
4923 if (copy_from_user(ioc
, argp
, sizeof(*ioc
))) {
4927 if ((ioc
->buf_size
< 1) &&
4928 (ioc
->Request
.Type
.Direction
!= XFER_NONE
)) {
4932 /* Check kmalloc limits using all SGs */
4933 if (ioc
->malloc_size
> MAX_KMALLOC_SIZE
) {
4937 if (ioc
->buf_size
> ioc
->malloc_size
* SG_ENTRIES_IN_CMD
) {
4941 buff
= kzalloc(SG_ENTRIES_IN_CMD
* sizeof(char *), GFP_KERNEL
);
4946 buff_size
= kmalloc(SG_ENTRIES_IN_CMD
* sizeof(int), GFP_KERNEL
);
4951 left
= ioc
->buf_size
;
4952 data_ptr
= ioc
->buf
;
4954 sz
= (left
> ioc
->malloc_size
) ? ioc
->malloc_size
: left
;
4955 buff_size
[sg_used
] = sz
;
4956 buff
[sg_used
] = kmalloc(sz
, GFP_KERNEL
);
4957 if (buff
[sg_used
] == NULL
) {
4961 if (ioc
->Request
.Type
.Direction
& XFER_WRITE
) {
4962 if (copy_from_user(buff
[sg_used
], data_ptr
, sz
)) {
4967 memset(buff
[sg_used
], 0, sz
);
4972 c
= cmd_special_alloc(h
);
4977 c
->cmd_type
= CMD_IOCTL_PEND
;
4978 c
->Header
.ReplyQueue
= 0;
4979 c
->Header
.SGList
= (u8
) sg_used
;
4980 c
->Header
.SGTotal
= cpu_to_le16(sg_used
);
4981 memcpy(&c
->Header
.LUN
, &ioc
->LUN_info
, sizeof(c
->Header
.LUN
));
4982 c
->Header
.tag
= cpu_to_le64(c
->busaddr
);
4983 memcpy(&c
->Request
, &ioc
->Request
, sizeof(c
->Request
));
4984 if (ioc
->buf_size
> 0) {
4986 for (i
= 0; i
< sg_used
; i
++) {
4987 temp64
= pci_map_single(h
->pdev
, buff
[i
],
4988 buff_size
[i
], PCI_DMA_BIDIRECTIONAL
);
4989 if (dma_mapping_error(&h
->pdev
->dev
,
4990 (dma_addr_t
) temp64
)) {
4991 c
->SG
[i
].Addr
= cpu_to_le64(0);
4992 c
->SG
[i
].Len
= cpu_to_le32(0);
4993 hpsa_pci_unmap(h
->pdev
, c
, i
,
4994 PCI_DMA_BIDIRECTIONAL
);
4998 c
->SG
[i
].Addr
= cpu_to_le64(temp64
);
4999 c
->SG
[i
].Len
= cpu_to_le32(buff_size
[i
]);
5000 c
->SG
[i
].Ext
= cpu_to_le32(0);
5002 c
->SG
[--i
].Ext
= cpu_to_le32(HPSA_SG_LAST
);
5004 hpsa_scsi_do_simple_cmd_core_if_no_lockup(h
, c
);
5006 hpsa_pci_unmap(h
->pdev
, c
, sg_used
, PCI_DMA_BIDIRECTIONAL
);
5007 check_ioctl_unit_attention(h
, c
);
5008 /* Copy the error information out */
5009 memcpy(&ioc
->error_info
, c
->err_info
, sizeof(ioc
->error_info
));
5010 if (copy_to_user(argp
, ioc
, sizeof(*ioc
))) {
5014 if ((ioc
->Request
.Type
.Direction
& XFER_READ
) && ioc
->buf_size
> 0) {
5017 /* Copy the data out of the buffer we created */
5018 BYTE __user
*ptr
= ioc
->buf
;
5019 for (i
= 0; i
< sg_used
; i
++) {
5020 if (copy_to_user(ptr
, buff
[i
], buff_size
[i
])) {
5024 ptr
+= buff_size
[i
];
5029 cmd_special_free(h
, c
);
5034 for (i
= 0; i
< sg_used
; i
++)
5043 static void check_ioctl_unit_attention(struct ctlr_info
*h
,
5044 struct CommandList
*c
)
5046 if (c
->err_info
->CommandStatus
== CMD_TARGET_STATUS
&&
5047 c
->err_info
->ScsiStatus
!= SAM_STAT_CHECK_CONDITION
)
5048 (void) check_for_unit_attention(h
, c
);
5051 static int increment_passthru_count(struct ctlr_info
*h
)
5053 unsigned long flags
;
5055 spin_lock_irqsave(&h
->passthru_count_lock
, flags
);
5056 if (h
->passthru_count
>= HPSA_MAX_CONCURRENT_PASSTHRUS
) {
5057 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5060 h
->passthru_count
++;
5061 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5065 static void decrement_passthru_count(struct ctlr_info
*h
)
5067 unsigned long flags
;
5069 spin_lock_irqsave(&h
->passthru_count_lock
, flags
);
5070 if (h
->passthru_count
<= 0) {
5071 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5072 /* not expecting to get here. */
5073 dev_warn(&h
->pdev
->dev
, "Bug detected, passthru_count seems to be incorrect.\n");
5076 h
->passthru_count
--;
5077 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5083 static int hpsa_ioctl(struct scsi_device
*dev
, int cmd
, void __user
*arg
)
5085 struct ctlr_info
*h
;
5086 void __user
*argp
= (void __user
*)arg
;
5089 h
= sdev_to_hba(dev
);
5092 case CCISS_DEREGDISK
:
5093 case CCISS_REGNEWDISK
:
5095 hpsa_scan_start(h
->scsi_host
);
5097 case CCISS_GETPCIINFO
:
5098 return hpsa_getpciinfo_ioctl(h
, argp
);
5099 case CCISS_GETDRIVVER
:
5100 return hpsa_getdrivver_ioctl(h
, argp
);
5101 case CCISS_PASSTHRU
:
5102 if (increment_passthru_count(h
))
5104 rc
= hpsa_passthru_ioctl(h
, argp
);
5105 decrement_passthru_count(h
);
5107 case CCISS_BIG_PASSTHRU
:
5108 if (increment_passthru_count(h
))
5110 rc
= hpsa_big_passthru_ioctl(h
, argp
);
5111 decrement_passthru_count(h
);
5118 static int hpsa_send_host_reset(struct ctlr_info
*h
, unsigned char *scsi3addr
,
5121 struct CommandList
*c
;
5126 /* fill_cmd can't fail here, no data buffer to map */
5127 (void) fill_cmd(c
, HPSA_DEVICE_RESET_MSG
, h
, NULL
, 0, 0,
5128 RAID_CTLR_LUNID
, TYPE_MSG
);
5129 c
->Request
.CDB
[1] = reset_type
; /* fill_cmd defaults to target reset */
5131 enqueue_cmd_and_start_io(h
, c
);
5132 /* Don't wait for completion, the reset won't complete. Don't free
5133 * the command either. This is the last command we will send before
5134 * re-initializing everything, so it doesn't matter and won't leak.
5139 static int fill_cmd(struct CommandList
*c
, u8 cmd
, struct ctlr_info
*h
,
5140 void *buff
, size_t size
, u16 page_code
, unsigned char *scsi3addr
,
5143 int pci_dir
= XFER_NONE
;
5144 struct CommandList
*a
; /* for commands to be aborted */
5146 c
->cmd_type
= CMD_IOCTL_PEND
;
5147 c
->Header
.ReplyQueue
= 0;
5148 if (buff
!= NULL
&& size
> 0) {
5149 c
->Header
.SGList
= 1;
5150 c
->Header
.SGTotal
= cpu_to_le16(1);
5152 c
->Header
.SGList
= 0;
5153 c
->Header
.SGTotal
= cpu_to_le16(0);
5155 c
->Header
.tag
= cpu_to_le64(c
->busaddr
);
5156 memcpy(c
->Header
.LUN
.LunAddrBytes
, scsi3addr
, 8);
5158 if (cmd_type
== TYPE_CMD
) {
5161 /* are we trying to read a vital product page */
5162 if (page_code
& VPD_PAGE
) {
5163 c
->Request
.CDB
[1] = 0x01;
5164 c
->Request
.CDB
[2] = (page_code
& 0xff);
5166 c
->Request
.CDBLen
= 6;
5167 c
->Request
.type_attr_dir
=
5168 TYPE_ATTR_DIR(cmd_type
, ATTR_SIMPLE
, XFER_READ
);
5169 c
->Request
.Timeout
= 0;
5170 c
->Request
.CDB
[0] = HPSA_INQUIRY
;
5171 c
->Request
.CDB
[4] = size
& 0xFF;
5173 case HPSA_REPORT_LOG
:
5174 case HPSA_REPORT_PHYS
:
5175 /* Talking to controller so It's a physical command
5176 mode = 00 target = 0. Nothing to write.
5178 c
->Request
.CDBLen
= 12;
5179 c
->Request
.type_attr_dir
=
5180 TYPE_ATTR_DIR(cmd_type
, ATTR_SIMPLE
, XFER_READ
);
5181 c
->Request
.Timeout
= 0;
5182 c
->Request
.CDB
[0] = cmd
;
5183 c
->Request
.CDB
[6] = (size
>> 24) & 0xFF; /* MSB */
5184 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5185 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5186 c
->Request
.CDB
[9] = size
& 0xFF;
5188 case HPSA_CACHE_FLUSH
:
5189 c
->Request
.CDBLen
= 12;
5190 c
->Request
.type_attr_dir
=
5191 TYPE_ATTR_DIR(cmd_type
,
5192 ATTR_SIMPLE
, XFER_WRITE
);
5193 c
->Request
.Timeout
= 0;
5194 c
->Request
.CDB
[0] = BMIC_WRITE
;
5195 c
->Request
.CDB
[6] = BMIC_CACHE_FLUSH
;
5196 c
->Request
.CDB
[7] = (size
>> 8) & 0xFF;
5197 c
->Request
.CDB
[8] = size
& 0xFF;
5199 case TEST_UNIT_READY
:
5200 c
->Request
.CDBLen
= 6;
5201 c
->Request
.type_attr_dir
=
5202 TYPE_ATTR_DIR(cmd_type
, ATTR_SIMPLE
, XFER_NONE
);
5203 c
->Request
.Timeout
= 0;
5205 case HPSA_GET_RAID_MAP
:
5206 c
->Request
.CDBLen
= 12;
5207 c
->Request
.type_attr_dir
=
5208 TYPE_ATTR_DIR(cmd_type
, ATTR_SIMPLE
, XFER_READ
);
5209 c
->Request
.Timeout
= 0;
5210 c
->Request
.CDB
[0] = HPSA_CISS_READ
;
5211 c
->Request
.CDB
[1] = cmd
;
5212 c
->Request
.CDB
[6] = (size
>> 24) & 0xFF; /* MSB */
5213 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5214 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5215 c
->Request
.CDB
[9] = size
& 0xFF;
5217 case BMIC_SENSE_CONTROLLER_PARAMETERS
:
5218 c
->Request
.CDBLen
= 10;
5219 c
->Request
.type_attr_dir
=
5220 TYPE_ATTR_DIR(cmd_type
, ATTR_SIMPLE
, XFER_READ
);
5221 c
->Request
.Timeout
= 0;
5222 c
->Request
.CDB
[0] = BMIC_READ
;
5223 c
->Request
.CDB
[6] = BMIC_SENSE_CONTROLLER_PARAMETERS
;
5224 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5225 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5228 dev_warn(&h
->pdev
->dev
, "unknown command 0x%c\n", cmd
);
5232 } else if (cmd_type
== TYPE_MSG
) {
5235 case HPSA_DEVICE_RESET_MSG
:
5236 c
->Request
.CDBLen
= 16;
5237 c
->Request
.type_attr_dir
=
5238 TYPE_ATTR_DIR(cmd_type
, ATTR_SIMPLE
, XFER_NONE
);
5239 c
->Request
.Timeout
= 0; /* Don't time out */
5240 memset(&c
->Request
.CDB
[0], 0, sizeof(c
->Request
.CDB
));
5241 c
->Request
.CDB
[0] = cmd
;
5242 c
->Request
.CDB
[1] = HPSA_RESET_TYPE_LUN
;
5243 /* If bytes 4-7 are zero, it means reset the */
5245 c
->Request
.CDB
[4] = 0x00;
5246 c
->Request
.CDB
[5] = 0x00;
5247 c
->Request
.CDB
[6] = 0x00;
5248 c
->Request
.CDB
[7] = 0x00;
5250 case HPSA_ABORT_MSG
:
5251 a
= buff
; /* point to command to be aborted */
5252 dev_dbg(&h
->pdev
->dev
,
5253 "Abort Tag:0x%016llx request Tag:0x%016llx",
5254 a
->Header
.tag
, c
->Header
.tag
);
5255 c
->Request
.CDBLen
= 16;
5256 c
->Request
.type_attr_dir
=
5257 TYPE_ATTR_DIR(cmd_type
,
5258 ATTR_SIMPLE
, XFER_WRITE
);
5259 c
->Request
.Timeout
= 0; /* Don't time out */
5260 c
->Request
.CDB
[0] = HPSA_TASK_MANAGEMENT
;
5261 c
->Request
.CDB
[1] = HPSA_TMF_ABORT_TASK
;
5262 c
->Request
.CDB
[2] = 0x00; /* reserved */
5263 c
->Request
.CDB
[3] = 0x00; /* reserved */
5264 /* Tag to abort goes in CDB[4]-CDB[11] */
5265 memcpy(&c
->Request
.CDB
[4], &a
->Header
.tag
,
5266 sizeof(a
->Header
.tag
));
5267 c
->Request
.CDB
[12] = 0x00; /* reserved */
5268 c
->Request
.CDB
[13] = 0x00; /* reserved */
5269 c
->Request
.CDB
[14] = 0x00; /* reserved */
5270 c
->Request
.CDB
[15] = 0x00; /* reserved */
5273 dev_warn(&h
->pdev
->dev
, "unknown message type %d\n",
5278 dev_warn(&h
->pdev
->dev
, "unknown command type %d\n", cmd_type
);
5282 switch (GET_DIR(c
->Request
.type_attr_dir
)) {
5284 pci_dir
= PCI_DMA_FROMDEVICE
;
5287 pci_dir
= PCI_DMA_TODEVICE
;
5290 pci_dir
= PCI_DMA_NONE
;
5293 pci_dir
= PCI_DMA_BIDIRECTIONAL
;
5295 if (hpsa_map_one(h
->pdev
, c
, buff
, size
, pci_dir
))
5301 * Map (physical) PCI mem into (virtual) kernel space
5303 static void __iomem
*remap_pci_mem(ulong base
, ulong size
)
5305 ulong page_base
= ((ulong
) base
) & PAGE_MASK
;
5306 ulong page_offs
= ((ulong
) base
) - page_base
;
5307 void __iomem
*page_remapped
= ioremap_nocache(page_base
,
5310 return page_remapped
? (page_remapped
+ page_offs
) : NULL
;
5313 /* Takes cmds off the submission queue and sends them to the hardware,
5314 * then puts them on the queue of cmds waiting for completion.
5315 * Assumes h->lock is held
5317 static void start_io(struct ctlr_info
*h
, unsigned long *flags
)
5319 struct CommandList
*c
;
5321 while (!list_empty(&h
->reqQ
)) {
5322 c
= list_entry(h
->reqQ
.next
, struct CommandList
, list
);
5323 /* can't do anything if fifo is full */
5324 if ((h
->access
.fifo_full(h
))) {
5325 h
->fifo_recently_full
= 1;
5326 dev_warn(&h
->pdev
->dev
, "fifo full\n");
5329 h
->fifo_recently_full
= 0;
5331 /* Get the first entry from the Request Q */
5335 /* Put job onto the completed Q */
5337 atomic_inc(&h
->commands_outstanding
);
5338 spin_unlock_irqrestore(&h
->lock
, *flags
);
5339 /* Tell the controller execute command */
5340 h
->access
.submit_command(h
, c
);
5341 spin_lock_irqsave(&h
->lock
, *flags
);
5345 static void lock_and_start_io(struct ctlr_info
*h
)
5347 unsigned long flags
;
5349 spin_lock_irqsave(&h
->lock
, flags
);
5350 start_io(h
, &flags
);
5351 spin_unlock_irqrestore(&h
->lock
, flags
);
5354 static inline unsigned long get_next_completion(struct ctlr_info
*h
, u8 q
)
5356 return h
->access
.command_completed(h
, q
);
5359 static inline bool interrupt_pending(struct ctlr_info
*h
)
5361 return h
->access
.intr_pending(h
);
5364 static inline long interrupt_not_for_us(struct ctlr_info
*h
)
5366 return (h
->access
.intr_pending(h
) == 0) ||
5367 (h
->interrupts_enabled
== 0);
5370 static inline int bad_tag(struct ctlr_info
*h
, u32 tag_index
,
5373 if (unlikely(tag_index
>= h
->nr_cmds
)) {
5374 dev_warn(&h
->pdev
->dev
, "bad tag 0x%08x ignored.\n", raw_tag
);
5380 static inline void finish_cmd(struct CommandList
*c
)
5382 unsigned long flags
;
5383 int io_may_be_stalled
= 0;
5384 struct ctlr_info
*h
= c
->h
;
5387 spin_lock_irqsave(&h
->lock
, flags
);
5391 * Check for possibly stalled i/o.
5393 * If a fifo_full condition is encountered, requests will back up
5394 * in h->reqQ. This queue is only emptied out by start_io which is
5395 * only called when a new i/o request comes in. If no i/o's are
5396 * forthcoming, the i/o's in h->reqQ can get stuck. So we call
5397 * start_io from here if we detect such a danger.
5399 * Normally, we shouldn't hit this case, but pounding on the
5400 * CCISS_PASSTHRU ioctl can provoke it. Only call start_io if
5401 * commands_outstanding is low. We want to avoid calling
5402 * start_io from in here as much as possible, and esp. don't
5403 * want to get in a cycle where we call start_io every time
5406 count
= atomic_read(&h
->commands_outstanding
);
5407 spin_unlock_irqrestore(&h
->lock
, flags
);
5408 if (unlikely(h
->fifo_recently_full
) && count
< 5)
5409 io_may_be_stalled
= 1;
5411 dial_up_lockup_detection_on_fw_flash_complete(c
->h
, c
);
5412 if (likely(c
->cmd_type
== CMD_IOACCEL1
|| c
->cmd_type
== CMD_SCSI
5413 || c
->cmd_type
== CMD_IOACCEL2
))
5414 complete_scsi_command(c
);
5415 else if (c
->cmd_type
== CMD_IOCTL_PEND
)
5416 complete(c
->waiting
);
5417 if (unlikely(io_may_be_stalled
))
5418 lock_and_start_io(h
);
5421 static inline u32
hpsa_tag_contains_index(u32 tag
)
5423 return tag
& DIRECT_LOOKUP_BIT
;
5426 static inline u32
hpsa_tag_to_index(u32 tag
)
5428 return tag
>> DIRECT_LOOKUP_SHIFT
;
5432 static inline u32
hpsa_tag_discard_error_bits(struct ctlr_info
*h
, u32 tag
)
5434 #define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
5435 #define HPSA_SIMPLE_ERROR_BITS 0x03
5436 if (unlikely(!(h
->transMethod
& CFGTBL_Trans_Performant
)))
5437 return tag
& ~HPSA_SIMPLE_ERROR_BITS
;
5438 return tag
& ~HPSA_PERF_ERROR_BITS
;
5441 /* process completion of an indexed ("direct lookup") command */
5442 static inline void process_indexed_cmd(struct ctlr_info
*h
,
5446 struct CommandList
*c
;
5448 tag_index
= hpsa_tag_to_index(raw_tag
);
5449 if (!bad_tag(h
, tag_index
, raw_tag
)) {
5450 c
= h
->cmd_pool
+ tag_index
;
5455 /* process completion of a non-indexed command */
5456 static inline void process_nonindexed_cmd(struct ctlr_info
*h
,
5460 struct CommandList
*c
= NULL
;
5461 unsigned long flags
;
5463 tag
= hpsa_tag_discard_error_bits(h
, raw_tag
);
5464 spin_lock_irqsave(&h
->lock
, flags
);
5465 list_for_each_entry(c
, &h
->cmpQ
, list
) {
5466 if ((c
->busaddr
& 0xFFFFFFE0) == (tag
& 0xFFFFFFE0)) {
5467 spin_unlock_irqrestore(&h
->lock
, flags
);
5472 spin_unlock_irqrestore(&h
->lock
, flags
);
5473 bad_tag(h
, h
->nr_cmds
+ 1, raw_tag
);
5476 /* Some controllers, like p400, will give us one interrupt
5477 * after a soft reset, even if we turned interrupts off.
5478 * Only need to check for this in the hpsa_xxx_discard_completions
5481 static int ignore_bogus_interrupt(struct ctlr_info
*h
)
5483 if (likely(!reset_devices
))
5486 if (likely(h
->interrupts_enabled
))
5489 dev_info(&h
->pdev
->dev
, "Received interrupt while interrupts disabled "
5490 "(known firmware bug.) Ignoring.\n");
5496 * Convert &h->q[x] (passed to interrupt handlers) back to h.
5497 * Relies on (h-q[x] == x) being true for x such that
5498 * 0 <= x < MAX_REPLY_QUEUES.
5500 static struct ctlr_info
*queue_to_hba(u8
*queue
)
5502 return container_of((queue
- *queue
), struct ctlr_info
, q
[0]);
5505 static irqreturn_t
hpsa_intx_discard_completions(int irq
, void *queue
)
5507 struct ctlr_info
*h
= queue_to_hba(queue
);
5508 u8 q
= *(u8
*) queue
;
5511 if (ignore_bogus_interrupt(h
))
5514 if (interrupt_not_for_us(h
))
5516 h
->last_intr_timestamp
= get_jiffies_64();
5517 while (interrupt_pending(h
)) {
5518 raw_tag
= get_next_completion(h
, q
);
5519 while (raw_tag
!= FIFO_EMPTY
)
5520 raw_tag
= next_command(h
, q
);
5525 static irqreturn_t
hpsa_msix_discard_completions(int irq
, void *queue
)
5527 struct ctlr_info
*h
= queue_to_hba(queue
);
5529 u8 q
= *(u8
*) queue
;
5531 if (ignore_bogus_interrupt(h
))
5534 h
->last_intr_timestamp
= get_jiffies_64();
5535 raw_tag
= get_next_completion(h
, q
);
5536 while (raw_tag
!= FIFO_EMPTY
)
5537 raw_tag
= next_command(h
, q
);
5541 static irqreturn_t
do_hpsa_intr_intx(int irq
, void *queue
)
5543 struct ctlr_info
*h
= queue_to_hba((u8
*) queue
);
5545 u8 q
= *(u8
*) queue
;
5547 if (interrupt_not_for_us(h
))
5549 h
->last_intr_timestamp
= get_jiffies_64();
5550 while (interrupt_pending(h
)) {
5551 raw_tag
= get_next_completion(h
, q
);
5552 while (raw_tag
!= FIFO_EMPTY
) {
5553 if (likely(hpsa_tag_contains_index(raw_tag
)))
5554 process_indexed_cmd(h
, raw_tag
);
5556 process_nonindexed_cmd(h
, raw_tag
);
5557 raw_tag
= next_command(h
, q
);
5563 static irqreturn_t
do_hpsa_intr_msi(int irq
, void *queue
)
5565 struct ctlr_info
*h
= queue_to_hba(queue
);
5567 u8 q
= *(u8
*) queue
;
5569 h
->last_intr_timestamp
= get_jiffies_64();
5570 raw_tag
= get_next_completion(h
, q
);
5571 while (raw_tag
!= FIFO_EMPTY
) {
5572 if (likely(hpsa_tag_contains_index(raw_tag
)))
5573 process_indexed_cmd(h
, raw_tag
);
5575 process_nonindexed_cmd(h
, raw_tag
);
5576 raw_tag
= next_command(h
, q
);
5581 /* Send a message CDB to the firmware. Careful, this only works
5582 * in simple mode, not performant mode due to the tag lookup.
5583 * We only ever use this immediately after a controller reset.
5585 static int hpsa_message(struct pci_dev
*pdev
, unsigned char opcode
,
5589 struct CommandListHeader CommandHeader
;
5590 struct RequestBlock Request
;
5591 struct ErrDescriptor ErrorDescriptor
;
5593 struct Command
*cmd
;
5594 static const size_t cmd_sz
= sizeof(*cmd
) +
5595 sizeof(cmd
->ErrorDescriptor
);
5599 void __iomem
*vaddr
;
5602 vaddr
= pci_ioremap_bar(pdev
, 0);
5606 /* The Inbound Post Queue only accepts 32-bit physical addresses for the
5607 * CCISS commands, so they must be allocated from the lower 4GiB of
5610 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32));
5616 cmd
= pci_alloc_consistent(pdev
, cmd_sz
, &paddr64
);
5622 /* This must fit, because of the 32-bit consistent DMA mask. Also,
5623 * although there's no guarantee, we assume that the address is at
5624 * least 4-byte aligned (most likely, it's page-aligned).
5626 paddr32
= cpu_to_le32(paddr64
);
5628 cmd
->CommandHeader
.ReplyQueue
= 0;
5629 cmd
->CommandHeader
.SGList
= 0;
5630 cmd
->CommandHeader
.SGTotal
= cpu_to_le16(0);
5631 cmd
->CommandHeader
.tag
= cpu_to_le64(paddr64
);
5632 memset(&cmd
->CommandHeader
.LUN
.LunAddrBytes
, 0, 8);
5634 cmd
->Request
.CDBLen
= 16;
5635 cmd
->Request
.type_attr_dir
=
5636 TYPE_ATTR_DIR(TYPE_MSG
, ATTR_HEADOFQUEUE
, XFER_NONE
);
5637 cmd
->Request
.Timeout
= 0; /* Don't time out */
5638 cmd
->Request
.CDB
[0] = opcode
;
5639 cmd
->Request
.CDB
[1] = type
;
5640 memset(&cmd
->Request
.CDB
[2], 0, 14); /* rest of the CDB is reserved */
5641 cmd
->ErrorDescriptor
.Addr
=
5642 cpu_to_le64((le32_to_cpu(paddr32
) + sizeof(*cmd
)));
5643 cmd
->ErrorDescriptor
.Len
= cpu_to_le32(sizeof(struct ErrorInfo
));
5645 writel(le32_to_cpu(paddr32
), vaddr
+ SA5_REQUEST_PORT_OFFSET
);
5647 for (i
= 0; i
< HPSA_MSG_SEND_RETRY_LIMIT
; i
++) {
5648 tag
= readl(vaddr
+ SA5_REPLY_PORT_OFFSET
);
5649 if ((tag
& ~HPSA_SIMPLE_ERROR_BITS
) == paddr64
)
5651 msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS
);
5656 /* we leak the DMA buffer here ... no choice since the controller could
5657 * still complete the command.
5659 if (i
== HPSA_MSG_SEND_RETRY_LIMIT
) {
5660 dev_err(&pdev
->dev
, "controller message %02x:%02x timed out\n",
5665 pci_free_consistent(pdev
, cmd_sz
, cmd
, paddr64
);
5667 if (tag
& HPSA_ERROR_BIT
) {
5668 dev_err(&pdev
->dev
, "controller message %02x:%02x failed\n",
5673 dev_info(&pdev
->dev
, "controller message %02x:%02x succeeded\n",
5678 #define hpsa_noop(p) hpsa_message(p, 3, 0)
5680 static int hpsa_controller_hard_reset(struct pci_dev
*pdev
,
5681 void __iomem
*vaddr
, u32 use_doorbell
)
5685 /* For everything after the P600, the PCI power state method
5686 * of resetting the controller doesn't work, so we have this
5687 * other way using the doorbell register.
5689 dev_info(&pdev
->dev
, "using doorbell to reset controller\n");
5690 writel(use_doorbell
, vaddr
+ SA5_DOORBELL
);
5692 /* PMC hardware guys tell us we need a 10 second delay after
5693 * doorbell reset and before any attempt to talk to the board
5694 * at all to ensure that this actually works and doesn't fall
5695 * over in some weird corner cases.
5698 } else { /* Try to do it the PCI power state way */
5700 /* Quoting from the Open CISS Specification: "The Power
5701 * Management Control/Status Register (CSR) controls the power
5702 * state of the device. The normal operating state is D0,
5703 * CSR=00h. The software off state is D3, CSR=03h. To reset
5704 * the controller, place the interface device in D3 then to D0,
5705 * this causes a secondary PCI reset which will reset the
5710 dev_info(&pdev
->dev
, "using PCI PM to reset controller\n");
5712 /* enter the D3hot power management state */
5713 rc
= pci_set_power_state(pdev
, PCI_D3hot
);
5719 /* enter the D0 power management state */
5720 rc
= pci_set_power_state(pdev
, PCI_D0
);
5725 * The P600 requires a small delay when changing states.
5726 * Otherwise we may think the board did not reset and we bail.
5727 * This for kdump only and is particular to the P600.
5734 static void init_driver_version(char *driver_version
, int len
)
5736 memset(driver_version
, 0, len
);
5737 strncpy(driver_version
, HPSA
" " HPSA_DRIVER_VERSION
, len
- 1);
5740 static int write_driver_ver_to_cfgtable(struct CfgTable __iomem
*cfgtable
)
5742 char *driver_version
;
5743 int i
, size
= sizeof(cfgtable
->driver_version
);
5745 driver_version
= kmalloc(size
, GFP_KERNEL
);
5746 if (!driver_version
)
5749 init_driver_version(driver_version
, size
);
5750 for (i
= 0; i
< size
; i
++)
5751 writeb(driver_version
[i
], &cfgtable
->driver_version
[i
]);
5752 kfree(driver_version
);
5756 static void read_driver_ver_from_cfgtable(struct CfgTable __iomem
*cfgtable
,
5757 unsigned char *driver_ver
)
5761 for (i
= 0; i
< sizeof(cfgtable
->driver_version
); i
++)
5762 driver_ver
[i
] = readb(&cfgtable
->driver_version
[i
]);
5765 static int controller_reset_failed(struct CfgTable __iomem
*cfgtable
)
5768 char *driver_ver
, *old_driver_ver
;
5769 int rc
, size
= sizeof(cfgtable
->driver_version
);
5771 old_driver_ver
= kmalloc(2 * size
, GFP_KERNEL
);
5772 if (!old_driver_ver
)
5774 driver_ver
= old_driver_ver
+ size
;
5776 /* After a reset, the 32 bytes of "driver version" in the cfgtable
5777 * should have been changed, otherwise we know the reset failed.
5779 init_driver_version(old_driver_ver
, size
);
5780 read_driver_ver_from_cfgtable(cfgtable
, driver_ver
);
5781 rc
= !memcmp(driver_ver
, old_driver_ver
, size
);
5782 kfree(old_driver_ver
);
5785 /* This does a hard reset of the controller using PCI power management
5786 * states or the using the doorbell register.
5788 static int hpsa_kdump_hard_reset_controller(struct pci_dev
*pdev
)
5792 u64 cfg_base_addr_index
;
5793 void __iomem
*vaddr
;
5794 unsigned long paddr
;
5795 u32 misc_fw_support
;
5797 struct CfgTable __iomem
*cfgtable
;
5800 u16 command_register
;
5802 /* For controllers as old as the P600, this is very nearly
5805 * pci_save_state(pci_dev);
5806 * pci_set_power_state(pci_dev, PCI_D3hot);
5807 * pci_set_power_state(pci_dev, PCI_D0);
5808 * pci_restore_state(pci_dev);
5810 * For controllers newer than the P600, the pci power state
5811 * method of resetting doesn't work so we have another way
5812 * using the doorbell register.
5815 rc
= hpsa_lookup_board_id(pdev
, &board_id
);
5817 dev_warn(&pdev
->dev
, "Board ID not found\n");
5820 if (!ctlr_is_resettable(board_id
)) {
5821 dev_warn(&pdev
->dev
, "Controller not resettable\n");
5825 /* if controller is soft- but not hard resettable... */
5826 if (!ctlr_is_hard_resettable(board_id
))
5827 return -ENOTSUPP
; /* try soft reset later. */
5829 /* Save the PCI command register */
5830 pci_read_config_word(pdev
, 4, &command_register
);
5831 pci_save_state(pdev
);
5833 /* find the first memory BAR, so we can find the cfg table */
5834 rc
= hpsa_pci_find_memory_BAR(pdev
, &paddr
);
5837 vaddr
= remap_pci_mem(paddr
, 0x250);
5841 /* find cfgtable in order to check if reset via doorbell is supported */
5842 rc
= hpsa_find_cfg_addrs(pdev
, vaddr
, &cfg_base_addr
,
5843 &cfg_base_addr_index
, &cfg_offset
);
5846 cfgtable
= remap_pci_mem(pci_resource_start(pdev
,
5847 cfg_base_addr_index
) + cfg_offset
, sizeof(*cfgtable
));
5852 rc
= write_driver_ver_to_cfgtable(cfgtable
);
5854 goto unmap_cfgtable
;
5856 /* If reset via doorbell register is supported, use that.
5857 * There are two such methods. Favor the newest method.
5859 misc_fw_support
= readl(&cfgtable
->misc_fw_support
);
5860 use_doorbell
= misc_fw_support
& MISC_FW_DOORBELL_RESET2
;
5862 use_doorbell
= DOORBELL_CTLR_RESET2
;
5864 use_doorbell
= misc_fw_support
& MISC_FW_DOORBELL_RESET
;
5866 dev_warn(&pdev
->dev
,
5867 "Soft reset not supported. Firmware update is required.\n");
5868 rc
= -ENOTSUPP
; /* try soft reset */
5869 goto unmap_cfgtable
;
5873 rc
= hpsa_controller_hard_reset(pdev
, vaddr
, use_doorbell
);
5875 goto unmap_cfgtable
;
5877 pci_restore_state(pdev
);
5878 pci_write_config_word(pdev
, 4, command_register
);
5880 /* Some devices (notably the HP Smart Array 5i Controller)
5881 need a little pause here */
5882 msleep(HPSA_POST_RESET_PAUSE_MSECS
);
5884 rc
= hpsa_wait_for_board_state(pdev
, vaddr
, BOARD_READY
);
5886 dev_warn(&pdev
->dev
,
5887 "Failed waiting for board to become ready after hard reset\n");
5888 goto unmap_cfgtable
;
5891 rc
= controller_reset_failed(vaddr
);
5893 goto unmap_cfgtable
;
5895 dev_warn(&pdev
->dev
, "Unable to successfully reset "
5896 "controller. Will try soft reset.\n");
5899 dev_info(&pdev
->dev
, "board ready after hard reset.\n");
5911 * We cannot read the structure directly, for portability we must use
5913 * This is for debug only.
5915 static void print_cfg_table(struct device
*dev
, struct CfgTable __iomem
*tb
)
5921 dev_info(dev
, "Controller Configuration information\n");
5922 dev_info(dev
, "------------------------------------\n");
5923 for (i
= 0; i
< 4; i
++)
5924 temp_name
[i
] = readb(&(tb
->Signature
[i
]));
5925 temp_name
[4] = '\0';
5926 dev_info(dev
, " Signature = %s\n", temp_name
);
5927 dev_info(dev
, " Spec Number = %d\n", readl(&(tb
->SpecValence
)));
5928 dev_info(dev
, " Transport methods supported = 0x%x\n",
5929 readl(&(tb
->TransportSupport
)));
5930 dev_info(dev
, " Transport methods active = 0x%x\n",
5931 readl(&(tb
->TransportActive
)));
5932 dev_info(dev
, " Requested transport Method = 0x%x\n",
5933 readl(&(tb
->HostWrite
.TransportRequest
)));
5934 dev_info(dev
, " Coalesce Interrupt Delay = 0x%x\n",
5935 readl(&(tb
->HostWrite
.CoalIntDelay
)));
5936 dev_info(dev
, " Coalesce Interrupt Count = 0x%x\n",
5937 readl(&(tb
->HostWrite
.CoalIntCount
)));
5938 dev_info(dev
, " Max outstanding commands = %d\n",
5939 readl(&(tb
->CmdsOutMax
)));
5940 dev_info(dev
, " Bus Types = 0x%x\n", readl(&(tb
->BusTypes
)));
5941 for (i
= 0; i
< 16; i
++)
5942 temp_name
[i
] = readb(&(tb
->ServerName
[i
]));
5943 temp_name
[16] = '\0';
5944 dev_info(dev
, " Server Name = %s\n", temp_name
);
5945 dev_info(dev
, " Heartbeat Counter = 0x%x\n\n\n",
5946 readl(&(tb
->HeartBeat
)));
5947 #endif /* HPSA_DEBUG */
5950 static int find_PCI_BAR_index(struct pci_dev
*pdev
, unsigned long pci_bar_addr
)
5952 int i
, offset
, mem_type
, bar_type
;
5954 if (pci_bar_addr
== PCI_BASE_ADDRESS_0
) /* looking for BAR zero? */
5957 for (i
= 0; i
< DEVICE_COUNT_RESOURCE
; i
++) {
5958 bar_type
= pci_resource_flags(pdev
, i
) & PCI_BASE_ADDRESS_SPACE
;
5959 if (bar_type
== PCI_BASE_ADDRESS_SPACE_IO
)
5962 mem_type
= pci_resource_flags(pdev
, i
) &
5963 PCI_BASE_ADDRESS_MEM_TYPE_MASK
;
5965 case PCI_BASE_ADDRESS_MEM_TYPE_32
:
5966 case PCI_BASE_ADDRESS_MEM_TYPE_1M
:
5967 offset
+= 4; /* 32 bit */
5969 case PCI_BASE_ADDRESS_MEM_TYPE_64
:
5972 default: /* reserved in PCI 2.2 */
5973 dev_warn(&pdev
->dev
,
5974 "base address is invalid\n");
5979 if (offset
== pci_bar_addr
- PCI_BASE_ADDRESS_0
)
5985 /* If MSI/MSI-X is supported by the kernel we will try to enable it on
5986 * controllers that are capable. If not, we use legacy INTx mode.
5989 static void hpsa_interrupt_mode(struct ctlr_info
*h
)
5991 #ifdef CONFIG_PCI_MSI
5993 struct msix_entry hpsa_msix_entries
[MAX_REPLY_QUEUES
];
5995 for (i
= 0; i
< MAX_REPLY_QUEUES
; i
++) {
5996 hpsa_msix_entries
[i
].vector
= 0;
5997 hpsa_msix_entries
[i
].entry
= i
;
6000 /* Some boards advertise MSI but don't really support it */
6001 if ((h
->board_id
== 0x40700E11) || (h
->board_id
== 0x40800E11) ||
6002 (h
->board_id
== 0x40820E11) || (h
->board_id
== 0x40830E11))
6003 goto default_int_mode
;
6004 if (pci_find_capability(h
->pdev
, PCI_CAP_ID_MSIX
)) {
6005 dev_info(&h
->pdev
->dev
, "MSI-X capable controller\n");
6006 h
->msix_vector
= MAX_REPLY_QUEUES
;
6007 if (h
->msix_vector
> num_online_cpus())
6008 h
->msix_vector
= num_online_cpus();
6009 err
= pci_enable_msix_range(h
->pdev
, hpsa_msix_entries
,
6012 dev_warn(&h
->pdev
->dev
, "MSI-X init failed %d\n", err
);
6014 goto single_msi_mode
;
6015 } else if (err
< h
->msix_vector
) {
6016 dev_warn(&h
->pdev
->dev
, "only %d MSI-X vectors "
6017 "available\n", err
);
6019 h
->msix_vector
= err
;
6020 for (i
= 0; i
< h
->msix_vector
; i
++)
6021 h
->intr
[i
] = hpsa_msix_entries
[i
].vector
;
6025 if (pci_find_capability(h
->pdev
, PCI_CAP_ID_MSI
)) {
6026 dev_info(&h
->pdev
->dev
, "MSI capable controller\n");
6027 if (!pci_enable_msi(h
->pdev
))
6030 dev_warn(&h
->pdev
->dev
, "MSI init failed\n");
6033 #endif /* CONFIG_PCI_MSI */
6034 /* if we get here we're going to use the default interrupt mode */
6035 h
->intr
[h
->intr_mode
] = h
->pdev
->irq
;
6038 static int hpsa_lookup_board_id(struct pci_dev
*pdev
, u32
*board_id
)
6041 u32 subsystem_vendor_id
, subsystem_device_id
;
6043 subsystem_vendor_id
= pdev
->subsystem_vendor
;
6044 subsystem_device_id
= pdev
->subsystem_device
;
6045 *board_id
= ((subsystem_device_id
<< 16) & 0xffff0000) |
6046 subsystem_vendor_id
;
6048 for (i
= 0; i
< ARRAY_SIZE(products
); i
++)
6049 if (*board_id
== products
[i
].board_id
)
6052 if ((subsystem_vendor_id
!= PCI_VENDOR_ID_HP
&&
6053 subsystem_vendor_id
!= PCI_VENDOR_ID_COMPAQ
) ||
6055 dev_warn(&pdev
->dev
, "unrecognized board ID: "
6056 "0x%08x, ignoring.\n", *board_id
);
6059 return ARRAY_SIZE(products
) - 1; /* generic unknown smart array */
6062 static int hpsa_pci_find_memory_BAR(struct pci_dev
*pdev
,
6063 unsigned long *memory_bar
)
6067 for (i
= 0; i
< DEVICE_COUNT_RESOURCE
; i
++)
6068 if (pci_resource_flags(pdev
, i
) & IORESOURCE_MEM
) {
6069 /* addressing mode bits already removed */
6070 *memory_bar
= pci_resource_start(pdev
, i
);
6071 dev_dbg(&pdev
->dev
, "memory BAR = %lx\n",
6075 dev_warn(&pdev
->dev
, "no memory BAR found\n");
6079 static int hpsa_wait_for_board_state(struct pci_dev
*pdev
, void __iomem
*vaddr
,
6085 iterations
= HPSA_BOARD_READY_ITERATIONS
;
6087 iterations
= HPSA_BOARD_NOT_READY_ITERATIONS
;
6089 for (i
= 0; i
< iterations
; i
++) {
6090 scratchpad
= readl(vaddr
+ SA5_SCRATCHPAD_OFFSET
);
6091 if (wait_for_ready
) {
6092 if (scratchpad
== HPSA_FIRMWARE_READY
)
6095 if (scratchpad
!= HPSA_FIRMWARE_READY
)
6098 msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS
);
6100 dev_warn(&pdev
->dev
, "board not ready, timed out.\n");
6104 static int hpsa_find_cfg_addrs(struct pci_dev
*pdev
, void __iomem
*vaddr
,
6105 u32
*cfg_base_addr
, u64
*cfg_base_addr_index
,
6108 *cfg_base_addr
= readl(vaddr
+ SA5_CTCFG_OFFSET
);
6109 *cfg_offset
= readl(vaddr
+ SA5_CTMEM_OFFSET
);
6110 *cfg_base_addr
&= (u32
) 0x0000ffff;
6111 *cfg_base_addr_index
= find_PCI_BAR_index(pdev
, *cfg_base_addr
);
6112 if (*cfg_base_addr_index
== -1) {
6113 dev_warn(&pdev
->dev
, "cannot find cfg_base_addr_index\n");
6119 static int hpsa_find_cfgtables(struct ctlr_info
*h
)
6123 u64 cfg_base_addr_index
;
6127 rc
= hpsa_find_cfg_addrs(h
->pdev
, h
->vaddr
, &cfg_base_addr
,
6128 &cfg_base_addr_index
, &cfg_offset
);
6131 h
->cfgtable
= remap_pci_mem(pci_resource_start(h
->pdev
,
6132 cfg_base_addr_index
) + cfg_offset
, sizeof(*h
->cfgtable
));
6134 dev_err(&h
->pdev
->dev
, "Failed mapping cfgtable\n");
6137 rc
= write_driver_ver_to_cfgtable(h
->cfgtable
);
6140 /* Find performant mode table. */
6141 trans_offset
= readl(&h
->cfgtable
->TransMethodOffset
);
6142 h
->transtable
= remap_pci_mem(pci_resource_start(h
->pdev
,
6143 cfg_base_addr_index
)+cfg_offset
+trans_offset
,
6144 sizeof(*h
->transtable
));
6150 static void hpsa_get_max_perf_mode_cmds(struct ctlr_info
*h
)
6152 h
->max_commands
= readl(&(h
->cfgtable
->MaxPerformantModeCommands
));
6154 /* Limit commands in memory limited kdump scenario. */
6155 if (reset_devices
&& h
->max_commands
> 32)
6156 h
->max_commands
= 32;
6158 if (h
->max_commands
< 16) {
6159 dev_warn(&h
->pdev
->dev
, "Controller reports "
6160 "max supported commands of %d, an obvious lie. "
6161 "Using 16. Ensure that firmware is up to date.\n",
6163 h
->max_commands
= 16;
6167 /* If the controller reports that the total max sg entries is greater than 512,
6168 * then we know that chained SG blocks work. (Original smart arrays did not
6169 * support chained SG blocks and would return zero for max sg entries.)
6171 static int hpsa_supports_chained_sg_blocks(struct ctlr_info
*h
)
6173 return h
->maxsgentries
> 512;
6176 /* Interrogate the hardware for some limits:
6177 * max commands, max SG elements without chaining, and with chaining,
6178 * SG chain block size, etc.
6180 static void hpsa_find_board_params(struct ctlr_info
*h
)
6182 hpsa_get_max_perf_mode_cmds(h
);
6183 h
->nr_cmds
= h
->max_commands
- 4; /* Allow room for some ioctls */
6184 h
->maxsgentries
= readl(&(h
->cfgtable
->MaxScatterGatherElements
));
6185 h
->fw_support
= readl(&(h
->cfgtable
->misc_fw_support
));
6186 if (hpsa_supports_chained_sg_blocks(h
)) {
6187 /* Limit in-command s/g elements to 32 save dma'able memory. */
6188 h
->max_cmd_sg_entries
= 32;
6189 h
->chainsize
= h
->maxsgentries
- h
->max_cmd_sg_entries
;
6190 h
->maxsgentries
--; /* save one for chain pointer */
6193 * Original smart arrays supported at most 31 s/g entries
6194 * embedded inline in the command (trying to use more
6195 * would lock up the controller)
6197 h
->max_cmd_sg_entries
= 31;
6198 h
->maxsgentries
= 31; /* default to traditional values */
6202 /* Find out what task management functions are supported and cache */
6203 h
->TMFSupportFlags
= readl(&(h
->cfgtable
->TMFSupportFlags
));
6204 if (!(HPSATMF_PHYS_TASK_ABORT
& h
->TMFSupportFlags
))
6205 dev_warn(&h
->pdev
->dev
, "Physical aborts not supported\n");
6206 if (!(HPSATMF_LOG_TASK_ABORT
& h
->TMFSupportFlags
))
6207 dev_warn(&h
->pdev
->dev
, "Logical aborts not supported\n");
6210 static inline bool hpsa_CISS_signature_present(struct ctlr_info
*h
)
6212 if (!check_signature(h
->cfgtable
->Signature
, "CISS", 4)) {
6213 dev_err(&h
->pdev
->dev
, "not a valid CISS config table\n");
6219 static inline void hpsa_set_driver_support_bits(struct ctlr_info
*h
)
6223 driver_support
= readl(&(h
->cfgtable
->driver_support
));
6224 /* Need to enable prefetch in the SCSI core for 6400 in x86 */
6226 driver_support
|= ENABLE_SCSI_PREFETCH
;
6228 driver_support
|= ENABLE_UNIT_ATTN
;
6229 writel(driver_support
, &(h
->cfgtable
->driver_support
));
6232 /* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result
6233 * in a prefetch beyond physical memory.
6235 static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info
*h
)
6239 if (h
->board_id
!= 0x3225103C)
6241 dma_prefetch
= readl(h
->vaddr
+ I2O_DMA1_CFG
);
6242 dma_prefetch
|= 0x8000;
6243 writel(dma_prefetch
, h
->vaddr
+ I2O_DMA1_CFG
);
6246 static void hpsa_wait_for_clear_event_notify_ack(struct ctlr_info
*h
)
6250 unsigned long flags
;
6251 /* wait until the clear_event_notify bit 6 is cleared by controller. */
6252 for (i
= 0; i
< MAX_CONFIG_WAIT
; i
++) {
6253 spin_lock_irqsave(&h
->lock
, flags
);
6254 doorbell_value
= readl(h
->vaddr
+ SA5_DOORBELL
);
6255 spin_unlock_irqrestore(&h
->lock
, flags
);
6256 if (!(doorbell_value
& DOORBELL_CLEAR_EVENTS
))
6258 /* delay and try again */
6263 static void hpsa_wait_for_mode_change_ack(struct ctlr_info
*h
)
6267 unsigned long flags
;
6269 /* under certain very rare conditions, this can take awhile.
6270 * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
6271 * as we enter this code.)
6273 for (i
= 0; i
< MAX_CONFIG_WAIT
; i
++) {
6274 spin_lock_irqsave(&h
->lock
, flags
);
6275 doorbell_value
= readl(h
->vaddr
+ SA5_DOORBELL
);
6276 spin_unlock_irqrestore(&h
->lock
, flags
);
6277 if (!(doorbell_value
& CFGTBL_ChangeReq
))
6279 /* delay and try again */
6280 usleep_range(10000, 20000);
6284 static int hpsa_enter_simple_mode(struct ctlr_info
*h
)
6288 trans_support
= readl(&(h
->cfgtable
->TransportSupport
));
6289 if (!(trans_support
& SIMPLE_MODE
))
6292 h
->max_commands
= readl(&(h
->cfgtable
->CmdsOutMax
));
6294 /* Update the field, and then ring the doorbell */
6295 writel(CFGTBL_Trans_Simple
, &(h
->cfgtable
->HostWrite
.TransportRequest
));
6296 writel(0, &h
->cfgtable
->HostWrite
.command_pool_addr_hi
);
6297 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
6298 hpsa_wait_for_mode_change_ack(h
);
6299 print_cfg_table(&h
->pdev
->dev
, h
->cfgtable
);
6300 if (!(readl(&(h
->cfgtable
->TransportActive
)) & CFGTBL_Trans_Simple
))
6302 h
->transMethod
= CFGTBL_Trans_Simple
;
6305 dev_err(&h
->pdev
->dev
, "failed to enter simple mode\n");
6309 static int hpsa_pci_init(struct ctlr_info
*h
)
6311 int prod_index
, err
;
6313 prod_index
= hpsa_lookup_board_id(h
->pdev
, &h
->board_id
);
6316 h
->product_name
= products
[prod_index
].product_name
;
6317 h
->access
= *(products
[prod_index
].access
);
6319 pci_disable_link_state(h
->pdev
, PCIE_LINK_STATE_L0S
|
6320 PCIE_LINK_STATE_L1
| PCIE_LINK_STATE_CLKPM
);
6322 err
= pci_enable_device(h
->pdev
);
6324 dev_warn(&h
->pdev
->dev
, "unable to enable PCI device\n");
6328 err
= pci_request_regions(h
->pdev
, HPSA
);
6330 dev_err(&h
->pdev
->dev
,
6331 "cannot obtain PCI resources, aborting\n");
6335 pci_set_master(h
->pdev
);
6337 hpsa_interrupt_mode(h
);
6338 err
= hpsa_pci_find_memory_BAR(h
->pdev
, &h
->paddr
);
6340 goto err_out_free_res
;
6341 h
->vaddr
= remap_pci_mem(h
->paddr
, 0x250);
6344 goto err_out_free_res
;
6346 err
= hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_READY
);
6348 goto err_out_free_res
;
6349 err
= hpsa_find_cfgtables(h
);
6351 goto err_out_free_res
;
6352 hpsa_find_board_params(h
);
6354 if (!hpsa_CISS_signature_present(h
)) {
6356 goto err_out_free_res
;
6358 hpsa_set_driver_support_bits(h
);
6359 hpsa_p600_dma_prefetch_quirk(h
);
6360 err
= hpsa_enter_simple_mode(h
);
6362 goto err_out_free_res
;
6367 iounmap(h
->transtable
);
6369 iounmap(h
->cfgtable
);
6372 pci_disable_device(h
->pdev
);
6373 pci_release_regions(h
->pdev
);
6377 static void hpsa_hba_inquiry(struct ctlr_info
*h
)
6381 #define HBA_INQUIRY_BYTE_COUNT 64
6382 h
->hba_inquiry_data
= kmalloc(HBA_INQUIRY_BYTE_COUNT
, GFP_KERNEL
);
6383 if (!h
->hba_inquiry_data
)
6385 rc
= hpsa_scsi_do_inquiry(h
, RAID_CTLR_LUNID
, 0,
6386 h
->hba_inquiry_data
, HBA_INQUIRY_BYTE_COUNT
);
6388 kfree(h
->hba_inquiry_data
);
6389 h
->hba_inquiry_data
= NULL
;
6393 static int hpsa_init_reset_devices(struct pci_dev
*pdev
)
6396 void __iomem
*vaddr
;
6401 /* kdump kernel is loading, we don't know in which state is
6402 * the pci interface. The dev->enable_cnt is equal zero
6403 * so we call enable+disable, wait a while and switch it on.
6405 rc
= pci_enable_device(pdev
);
6407 dev_warn(&pdev
->dev
, "Failed to enable PCI device\n");
6410 pci_disable_device(pdev
);
6411 msleep(260); /* a randomly chosen number */
6412 rc
= pci_enable_device(pdev
);
6414 dev_warn(&pdev
->dev
, "failed to enable device.\n");
6418 pci_set_master(pdev
);
6420 vaddr
= pci_ioremap_bar(pdev
, 0);
6421 if (vaddr
== NULL
) {
6425 writel(SA5_INTR_OFF
, vaddr
+ SA5_REPLY_INTR_MASK_OFFSET
);
6428 /* Reset the controller with a PCI power-cycle or via doorbell */
6429 rc
= hpsa_kdump_hard_reset_controller(pdev
);
6431 /* -ENOTSUPP here means we cannot reset the controller
6432 * but it's already (and still) up and running in
6433 * "performant mode". Or, it might be 640x, which can't reset
6434 * due to concerns about shared bbwc between 6402/6404 pair.
6439 /* Now try to get the controller to respond to a no-op */
6440 dev_info(&pdev
->dev
, "Waiting for controller to respond to no-op\n");
6441 for (i
= 0; i
< HPSA_POST_RESET_NOOP_RETRIES
; i
++) {
6442 if (hpsa_noop(pdev
) == 0)
6445 dev_warn(&pdev
->dev
, "no-op failed%s\n",
6446 (i
< 11 ? "; re-trying" : ""));
6451 pci_disable_device(pdev
);
6455 static int hpsa_allocate_cmd_pool(struct ctlr_info
*h
)
6457 h
->cmd_pool_bits
= kzalloc(
6458 DIV_ROUND_UP(h
->nr_cmds
, BITS_PER_LONG
) *
6459 sizeof(unsigned long), GFP_KERNEL
);
6460 h
->cmd_pool
= pci_alloc_consistent(h
->pdev
,
6461 h
->nr_cmds
* sizeof(*h
->cmd_pool
),
6462 &(h
->cmd_pool_dhandle
));
6463 h
->errinfo_pool
= pci_alloc_consistent(h
->pdev
,
6464 h
->nr_cmds
* sizeof(*h
->errinfo_pool
),
6465 &(h
->errinfo_pool_dhandle
));
6466 if ((h
->cmd_pool_bits
== NULL
)
6467 || (h
->cmd_pool
== NULL
)
6468 || (h
->errinfo_pool
== NULL
)) {
6469 dev_err(&h
->pdev
->dev
, "out of memory in %s", __func__
);
6475 static void hpsa_free_cmd_pool(struct ctlr_info
*h
)
6477 kfree(h
->cmd_pool_bits
);
6479 pci_free_consistent(h
->pdev
,
6480 h
->nr_cmds
* sizeof(struct CommandList
),
6481 h
->cmd_pool
, h
->cmd_pool_dhandle
);
6482 if (h
->ioaccel2_cmd_pool
)
6483 pci_free_consistent(h
->pdev
,
6484 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
6485 h
->ioaccel2_cmd_pool
, h
->ioaccel2_cmd_pool_dhandle
);
6486 if (h
->errinfo_pool
)
6487 pci_free_consistent(h
->pdev
,
6488 h
->nr_cmds
* sizeof(struct ErrorInfo
),
6490 h
->errinfo_pool_dhandle
);
6491 if (h
->ioaccel_cmd_pool
)
6492 pci_free_consistent(h
->pdev
,
6493 h
->nr_cmds
* sizeof(struct io_accel1_cmd
),
6494 h
->ioaccel_cmd_pool
, h
->ioaccel_cmd_pool_dhandle
);
6497 static void hpsa_irq_affinity_hints(struct ctlr_info
*h
)
6501 cpu
= cpumask_first(cpu_online_mask
);
6502 for (i
= 0; i
< h
->msix_vector
; i
++) {
6503 irq_set_affinity_hint(h
->intr
[i
], get_cpu_mask(cpu
));
6504 cpu
= cpumask_next(cpu
, cpu_online_mask
);
6508 /* clear affinity hints and free MSI-X, MSI, or legacy INTx vectors */
6509 static void hpsa_free_irqs(struct ctlr_info
*h
)
6513 if (!h
->msix_vector
|| h
->intr_mode
!= PERF_MODE_INT
) {
6514 /* Single reply queue, only one irq to free */
6516 irq_set_affinity_hint(h
->intr
[i
], NULL
);
6517 free_irq(h
->intr
[i
], &h
->q
[i
]);
6521 for (i
= 0; i
< h
->msix_vector
; i
++) {
6522 irq_set_affinity_hint(h
->intr
[i
], NULL
);
6523 free_irq(h
->intr
[i
], &h
->q
[i
]);
6525 for (; i
< MAX_REPLY_QUEUES
; i
++)
6529 /* returns 0 on success; cleans up and returns -Enn on error */
6530 static int hpsa_request_irqs(struct ctlr_info
*h
,
6531 irqreturn_t (*msixhandler
)(int, void *),
6532 irqreturn_t (*intxhandler
)(int, void *))
6537 * initialize h->q[x] = x so that interrupt handlers know which
6540 for (i
= 0; i
< MAX_REPLY_QUEUES
; i
++)
6543 if (h
->intr_mode
== PERF_MODE_INT
&& h
->msix_vector
> 0) {
6544 /* If performant mode and MSI-X, use multiple reply queues */
6545 for (i
= 0; i
< h
->msix_vector
; i
++) {
6546 rc
= request_irq(h
->intr
[i
], msixhandler
,
6552 dev_err(&h
->pdev
->dev
,
6553 "failed to get irq %d for %s\n",
6554 h
->intr
[i
], h
->devname
);
6555 for (j
= 0; j
< i
; j
++) {
6556 free_irq(h
->intr
[j
], &h
->q
[j
]);
6559 for (; j
< MAX_REPLY_QUEUES
; j
++)
6564 hpsa_irq_affinity_hints(h
);
6566 /* Use single reply pool */
6567 if (h
->msix_vector
> 0 || h
->msi_vector
) {
6568 rc
= request_irq(h
->intr
[h
->intr_mode
],
6569 msixhandler
, 0, h
->devname
,
6570 &h
->q
[h
->intr_mode
]);
6572 rc
= request_irq(h
->intr
[h
->intr_mode
],
6573 intxhandler
, IRQF_SHARED
, h
->devname
,
6574 &h
->q
[h
->intr_mode
]);
6578 dev_err(&h
->pdev
->dev
, "unable to get irq %d for %s\n",
6579 h
->intr
[h
->intr_mode
], h
->devname
);
6585 static int hpsa_kdump_soft_reset(struct ctlr_info
*h
)
6587 if (hpsa_send_host_reset(h
, RAID_CTLR_LUNID
,
6588 HPSA_RESET_TYPE_CONTROLLER
)) {
6589 dev_warn(&h
->pdev
->dev
, "Resetting array controller failed.\n");
6593 dev_info(&h
->pdev
->dev
, "Waiting for board to soft reset.\n");
6594 if (hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_NOT_READY
)) {
6595 dev_warn(&h
->pdev
->dev
, "Soft reset had no effect.\n");
6599 dev_info(&h
->pdev
->dev
, "Board reset, awaiting READY status.\n");
6600 if (hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_READY
)) {
6601 dev_warn(&h
->pdev
->dev
, "Board failed to become ready "
6602 "after soft reset.\n");
6609 static void hpsa_free_irqs_and_disable_msix(struct ctlr_info
*h
)
6612 #ifdef CONFIG_PCI_MSI
6613 if (h
->msix_vector
) {
6614 if (h
->pdev
->msix_enabled
)
6615 pci_disable_msix(h
->pdev
);
6616 } else if (h
->msi_vector
) {
6617 if (h
->pdev
->msi_enabled
)
6618 pci_disable_msi(h
->pdev
);
6620 #endif /* CONFIG_PCI_MSI */
6623 static void hpsa_free_reply_queues(struct ctlr_info
*h
)
6627 for (i
= 0; i
< h
->nreply_queues
; i
++) {
6628 if (!h
->reply_queue
[i
].head
)
6630 pci_free_consistent(h
->pdev
, h
->reply_queue_size
,
6631 h
->reply_queue
[i
].head
, h
->reply_queue
[i
].busaddr
);
6632 h
->reply_queue
[i
].head
= NULL
;
6633 h
->reply_queue
[i
].busaddr
= 0;
6637 static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info
*h
)
6639 hpsa_free_irqs_and_disable_msix(h
);
6640 hpsa_free_sg_chain_blocks(h
);
6641 hpsa_free_cmd_pool(h
);
6642 kfree(h
->ioaccel1_blockFetchTable
);
6643 kfree(h
->blockFetchTable
);
6644 hpsa_free_reply_queues(h
);
6648 iounmap(h
->transtable
);
6650 iounmap(h
->cfgtable
);
6651 pci_disable_device(h
->pdev
);
6652 pci_release_regions(h
->pdev
);
6656 /* Called when controller lockup detected. */
6657 static void fail_all_cmds_on_list(struct ctlr_info
*h
, struct list_head
*list
)
6659 struct CommandList
*c
= NULL
;
6661 assert_spin_locked(&h
->lock
);
6662 /* Mark all outstanding commands as failed and complete them. */
6663 while (!list_empty(list
)) {
6664 c
= list_entry(list
->next
, struct CommandList
, list
);
6665 c
->err_info
->CommandStatus
= CMD_HARDWARE_ERR
;
6670 static void set_lockup_detected_for_all_cpus(struct ctlr_info
*h
, u32 value
)
6674 cpu
= cpumask_first(cpu_online_mask
);
6675 for (i
= 0; i
< num_online_cpus(); i
++) {
6676 u32
*lockup_detected
;
6677 lockup_detected
= per_cpu_ptr(h
->lockup_detected
, cpu
);
6678 *lockup_detected
= value
;
6679 cpu
= cpumask_next(cpu
, cpu_online_mask
);
6681 wmb(); /* be sure the per-cpu variables are out to memory */
6684 static void controller_lockup_detected(struct ctlr_info
*h
)
6686 unsigned long flags
;
6687 u32 lockup_detected
;
6689 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
6690 spin_lock_irqsave(&h
->lock
, flags
);
6691 lockup_detected
= readl(h
->vaddr
+ SA5_SCRATCHPAD_OFFSET
);
6692 if (!lockup_detected
) {
6693 /* no heartbeat, but controller gave us a zero. */
6694 dev_warn(&h
->pdev
->dev
,
6695 "lockup detected but scratchpad register is zero\n");
6696 lockup_detected
= 0xffffffff;
6698 set_lockup_detected_for_all_cpus(h
, lockup_detected
);
6699 spin_unlock_irqrestore(&h
->lock
, flags
);
6700 dev_warn(&h
->pdev
->dev
, "Controller lockup detected: 0x%08x\n",
6702 pci_disable_device(h
->pdev
);
6703 spin_lock_irqsave(&h
->lock
, flags
);
6704 fail_all_cmds_on_list(h
, &h
->cmpQ
);
6705 fail_all_cmds_on_list(h
, &h
->reqQ
);
6706 spin_unlock_irqrestore(&h
->lock
, flags
);
6709 static void detect_controller_lockup(struct ctlr_info
*h
)
6713 unsigned long flags
;
6715 now
= get_jiffies_64();
6716 /* If we've received an interrupt recently, we're ok. */
6717 if (time_after64(h
->last_intr_timestamp
+
6718 (h
->heartbeat_sample_interval
), now
))
6722 * If we've already checked the heartbeat recently, we're ok.
6723 * This could happen if someone sends us a signal. We
6724 * otherwise don't care about signals in this thread.
6726 if (time_after64(h
->last_heartbeat_timestamp
+
6727 (h
->heartbeat_sample_interval
), now
))
6730 /* If heartbeat has not changed since we last looked, we're not ok. */
6731 spin_lock_irqsave(&h
->lock
, flags
);
6732 heartbeat
= readl(&h
->cfgtable
->HeartBeat
);
6733 spin_unlock_irqrestore(&h
->lock
, flags
);
6734 if (h
->last_heartbeat
== heartbeat
) {
6735 controller_lockup_detected(h
);
6740 h
->last_heartbeat
= heartbeat
;
6741 h
->last_heartbeat_timestamp
= now
;
6744 static void hpsa_ack_ctlr_events(struct ctlr_info
*h
)
6749 /* Clear the driver-requested rescan flag */
6750 h
->drv_req_rescan
= 0;
6752 /* Ask the controller to clear the events we're handling. */
6753 if ((h
->transMethod
& (CFGTBL_Trans_io_accel1
6754 | CFGTBL_Trans_io_accel2
)) &&
6755 (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE
||
6756 h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE
)) {
6758 if (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE
)
6759 event_type
= "state change";
6760 if (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE
)
6761 event_type
= "configuration change";
6762 /* Stop sending new RAID offload reqs via the IO accelerator */
6763 scsi_block_requests(h
->scsi_host
);
6764 for (i
= 0; i
< h
->ndevices
; i
++)
6765 h
->dev
[i
]->offload_enabled
= 0;
6766 hpsa_drain_accel_commands(h
);
6767 /* Set 'accelerator path config change' bit */
6768 dev_warn(&h
->pdev
->dev
,
6769 "Acknowledging event: 0x%08x (HP SSD Smart Path %s)\n",
6770 h
->events
, event_type
);
6771 writel(h
->events
, &(h
->cfgtable
->clear_event_notify
));
6772 /* Set the "clear event notify field update" bit 6 */
6773 writel(DOORBELL_CLEAR_EVENTS
, h
->vaddr
+ SA5_DOORBELL
);
6774 /* Wait until ctlr clears 'clear event notify field', bit 6 */
6775 hpsa_wait_for_clear_event_notify_ack(h
);
6776 scsi_unblock_requests(h
->scsi_host
);
6778 /* Acknowledge controller notification events. */
6779 writel(h
->events
, &(h
->cfgtable
->clear_event_notify
));
6780 writel(DOORBELL_CLEAR_EVENTS
, h
->vaddr
+ SA5_DOORBELL
);
6781 hpsa_wait_for_clear_event_notify_ack(h
);
6783 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
6784 hpsa_wait_for_mode_change_ack(h
);
6790 /* Check a register on the controller to see if there are configuration
6791 * changes (added/changed/removed logical drives, etc.) which mean that
6792 * we should rescan the controller for devices.
6793 * Also check flag for driver-initiated rescan.
6795 static int hpsa_ctlr_needs_rescan(struct ctlr_info
*h
)
6797 if (h
->drv_req_rescan
)
6800 if (!(h
->fw_support
& MISC_FW_EVENT_NOTIFY
))
6803 h
->events
= readl(&(h
->cfgtable
->event_notify
));
6804 return h
->events
& RESCAN_REQUIRED_EVENT_BITS
;
6808 * Check if any of the offline devices have become ready
6810 static int hpsa_offline_devices_ready(struct ctlr_info
*h
)
6812 unsigned long flags
;
6813 struct offline_device_entry
*d
;
6814 struct list_head
*this, *tmp
;
6816 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6817 list_for_each_safe(this, tmp
, &h
->offline_device_list
) {
6818 d
= list_entry(this, struct offline_device_entry
,
6820 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6821 if (!hpsa_volume_offline(h
, d
->scsi3addr
)) {
6822 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6823 list_del(&d
->offline_list
);
6824 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6827 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6829 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6834 static void hpsa_monitor_ctlr_worker(struct work_struct
*work
)
6836 unsigned long flags
;
6837 struct ctlr_info
*h
= container_of(to_delayed_work(work
),
6838 struct ctlr_info
, monitor_ctlr_work
);
6839 detect_controller_lockup(h
);
6840 if (lockup_detected(h
))
6843 if (hpsa_ctlr_needs_rescan(h
) || hpsa_offline_devices_ready(h
)) {
6844 scsi_host_get(h
->scsi_host
);
6845 h
->drv_req_rescan
= 0;
6846 hpsa_ack_ctlr_events(h
);
6847 hpsa_scan_start(h
->scsi_host
);
6848 scsi_host_put(h
->scsi_host
);
6851 spin_lock_irqsave(&h
->lock
, flags
);
6852 if (h
->remove_in_progress
) {
6853 spin_unlock_irqrestore(&h
->lock
, flags
);
6856 schedule_delayed_work(&h
->monitor_ctlr_work
,
6857 h
->heartbeat_sample_interval
);
6858 spin_unlock_irqrestore(&h
->lock
, flags
);
6861 static int hpsa_init_one(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
6864 struct ctlr_info
*h
;
6865 int try_soft_reset
= 0;
6866 unsigned long flags
;
6868 if (number_of_controllers
== 0)
6869 printk(KERN_INFO DRIVER_NAME
"\n");
6871 rc
= hpsa_init_reset_devices(pdev
);
6873 if (rc
!= -ENOTSUPP
)
6875 /* If the reset fails in a particular way (it has no way to do
6876 * a proper hard reset, so returns -ENOTSUPP) we can try to do
6877 * a soft reset once we get the controller configured up to the
6878 * point that it can accept a command.
6884 reinit_after_soft_reset
:
6886 /* Command structures must be aligned on a 32-byte boundary because
6887 * the 5 lower bits of the address are used by the hardware. and by
6888 * the driver. See comments in hpsa.h for more info.
6890 BUILD_BUG_ON(sizeof(struct CommandList
) % COMMANDLIST_ALIGNMENT
);
6891 h
= kzalloc(sizeof(*h
), GFP_KERNEL
);
6896 h
->intr_mode
= hpsa_simple_mode
? SIMPLE_MODE_INT
: PERF_MODE_INT
;
6897 INIT_LIST_HEAD(&h
->cmpQ
);
6898 INIT_LIST_HEAD(&h
->reqQ
);
6899 INIT_LIST_HEAD(&h
->offline_device_list
);
6900 spin_lock_init(&h
->lock
);
6901 spin_lock_init(&h
->offline_device_lock
);
6902 spin_lock_init(&h
->scan_lock
);
6903 spin_lock_init(&h
->passthru_count_lock
);
6905 /* Allocate and clear per-cpu variable lockup_detected */
6906 h
->lockup_detected
= alloc_percpu(u32
);
6907 if (!h
->lockup_detected
) {
6911 set_lockup_detected_for_all_cpus(h
, 0);
6913 rc
= hpsa_pci_init(h
);
6917 sprintf(h
->devname
, HPSA
"%d", number_of_controllers
);
6918 h
->ctlr
= number_of_controllers
;
6919 number_of_controllers
++;
6921 /* configure PCI DMA stuff */
6922 rc
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
6926 rc
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
6930 dev_err(&pdev
->dev
, "no suitable DMA available\n");
6935 /* make sure the board interrupts are off */
6936 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
6938 if (hpsa_request_irqs(h
, do_hpsa_intr_msi
, do_hpsa_intr_intx
))
6940 dev_info(&pdev
->dev
, "%s: <0x%x> at IRQ %d%s using DAC\n",
6941 h
->devname
, pdev
->device
,
6942 h
->intr
[h
->intr_mode
], dac
? "" : " not");
6943 if (hpsa_allocate_cmd_pool(h
))
6945 if (hpsa_allocate_sg_chain_blocks(h
))
6947 init_waitqueue_head(&h
->scan_wait_queue
);
6948 h
->scan_finished
= 1; /* no scan currently in progress */
6950 pci_set_drvdata(pdev
, h
);
6952 h
->hba_mode_enabled
= 0;
6953 h
->scsi_host
= NULL
;
6954 spin_lock_init(&h
->devlock
);
6955 hpsa_put_ctlr_into_performant_mode(h
);
6957 /* At this point, the controller is ready to take commands.
6958 * Now, if reset_devices and the hard reset didn't work, try
6959 * the soft reset and see if that works.
6961 if (try_soft_reset
) {
6963 /* This is kind of gross. We may or may not get a completion
6964 * from the soft reset command, and if we do, then the value
6965 * from the fifo may or may not be valid. So, we wait 10 secs
6966 * after the reset throwing away any completions we get during
6967 * that time. Unregister the interrupt handler and register
6968 * fake ones to scoop up any residual completions.
6970 spin_lock_irqsave(&h
->lock
, flags
);
6971 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
6972 spin_unlock_irqrestore(&h
->lock
, flags
);
6974 rc
= hpsa_request_irqs(h
, hpsa_msix_discard_completions
,
6975 hpsa_intx_discard_completions
);
6977 dev_warn(&h
->pdev
->dev
,
6978 "Failed to request_irq after soft reset.\n");
6982 rc
= hpsa_kdump_soft_reset(h
);
6984 /* Neither hard nor soft reset worked, we're hosed. */
6987 dev_info(&h
->pdev
->dev
, "Board READY.\n");
6988 dev_info(&h
->pdev
->dev
,
6989 "Waiting for stale completions to drain.\n");
6990 h
->access
.set_intr_mask(h
, HPSA_INTR_ON
);
6992 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
6994 rc
= controller_reset_failed(h
->cfgtable
);
6996 dev_info(&h
->pdev
->dev
,
6997 "Soft reset appears to have failed.\n");
6999 /* since the controller's reset, we have to go back and re-init
7000 * everything. Easiest to just forget what we've done and do it
7003 hpsa_undo_allocations_after_kdump_soft_reset(h
);
7006 /* don't go to clean4, we already unallocated */
7009 goto reinit_after_soft_reset
;
7012 /* Enable Accelerated IO path at driver layer */
7013 h
->acciopath_status
= 1;
7015 h
->drv_req_rescan
= 0;
7017 /* Turn the interrupts on so we can service requests */
7018 h
->access
.set_intr_mask(h
, HPSA_INTR_ON
);
7020 hpsa_hba_inquiry(h
);
7021 hpsa_register_scsi(h
); /* hook ourselves into SCSI subsystem */
7023 /* Monitor the controller for firmware lockups */
7024 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL
;
7025 INIT_DELAYED_WORK(&h
->monitor_ctlr_work
, hpsa_monitor_ctlr_worker
);
7026 schedule_delayed_work(&h
->monitor_ctlr_work
,
7027 h
->heartbeat_sample_interval
);
7031 hpsa_free_sg_chain_blocks(h
);
7032 hpsa_free_cmd_pool(h
);
7036 if (h
->lockup_detected
)
7037 free_percpu(h
->lockup_detected
);
7042 static void hpsa_flush_cache(struct ctlr_info
*h
)
7045 struct CommandList
*c
;
7047 /* Don't bother trying to flush the cache if locked up */
7048 if (unlikely(lockup_detected(h
)))
7050 flush_buf
= kzalloc(4, GFP_KERNEL
);
7054 c
= cmd_special_alloc(h
);
7056 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
7059 if (fill_cmd(c
, HPSA_CACHE_FLUSH
, h
, flush_buf
, 4, 0,
7060 RAID_CTLR_LUNID
, TYPE_CMD
)) {
7063 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_TODEVICE
);
7064 if (c
->err_info
->CommandStatus
!= 0)
7066 dev_warn(&h
->pdev
->dev
,
7067 "error flushing cache on controller\n");
7068 cmd_special_free(h
, c
);
7073 static void hpsa_shutdown(struct pci_dev
*pdev
)
7075 struct ctlr_info
*h
;
7077 h
= pci_get_drvdata(pdev
);
7078 /* Turn board interrupts off and send the flush cache command
7079 * sendcmd will turn off interrupt, and send the flush...
7080 * To write all data in the battery backed cache to disks
7082 hpsa_flush_cache(h
);
7083 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7084 hpsa_free_irqs_and_disable_msix(h
);
7087 static void hpsa_free_device_info(struct ctlr_info
*h
)
7091 for (i
= 0; i
< h
->ndevices
; i
++)
7095 static void hpsa_remove_one(struct pci_dev
*pdev
)
7097 struct ctlr_info
*h
;
7098 unsigned long flags
;
7100 if (pci_get_drvdata(pdev
) == NULL
) {
7101 dev_err(&pdev
->dev
, "unable to remove device\n");
7104 h
= pci_get_drvdata(pdev
);
7106 /* Get rid of any controller monitoring work items */
7107 spin_lock_irqsave(&h
->lock
, flags
);
7108 h
->remove_in_progress
= 1;
7109 cancel_delayed_work(&h
->monitor_ctlr_work
);
7110 spin_unlock_irqrestore(&h
->lock
, flags
);
7112 hpsa_unregister_scsi(h
); /* unhook from SCSI subsystem */
7113 hpsa_shutdown(pdev
);
7115 iounmap(h
->transtable
);
7116 iounmap(h
->cfgtable
);
7117 hpsa_free_device_info(h
);
7118 hpsa_free_sg_chain_blocks(h
);
7119 pci_free_consistent(h
->pdev
,
7120 h
->nr_cmds
* sizeof(struct CommandList
),
7121 h
->cmd_pool
, h
->cmd_pool_dhandle
);
7122 pci_free_consistent(h
->pdev
,
7123 h
->nr_cmds
* sizeof(struct ErrorInfo
),
7124 h
->errinfo_pool
, h
->errinfo_pool_dhandle
);
7125 hpsa_free_reply_queues(h
);
7126 kfree(h
->cmd_pool_bits
);
7127 kfree(h
->blockFetchTable
);
7128 kfree(h
->ioaccel1_blockFetchTable
);
7129 kfree(h
->ioaccel2_blockFetchTable
);
7130 kfree(h
->hba_inquiry_data
);
7131 pci_disable_device(pdev
);
7132 pci_release_regions(pdev
);
7133 free_percpu(h
->lockup_detected
);
7137 static int hpsa_suspend(__attribute__((unused
)) struct pci_dev
*pdev
,
7138 __attribute__((unused
)) pm_message_t state
)
7143 static int hpsa_resume(__attribute__((unused
)) struct pci_dev
*pdev
)
7148 static struct pci_driver hpsa_pci_driver
= {
7150 .probe
= hpsa_init_one
,
7151 .remove
= hpsa_remove_one
,
7152 .id_table
= hpsa_pci_device_id
, /* id_table */
7153 .shutdown
= hpsa_shutdown
,
7154 .suspend
= hpsa_suspend
,
7155 .resume
= hpsa_resume
,
7158 /* Fill in bucket_map[], given nsgs (the max number of
7159 * scatter gather elements supported) and bucket[],
7160 * which is an array of 8 integers. The bucket[] array
7161 * contains 8 different DMA transfer sizes (in 16
7162 * byte increments) which the controller uses to fetch
7163 * commands. This function fills in bucket_map[], which
7164 * maps a given number of scatter gather elements to one of
7165 * the 8 DMA transfer sizes. The point of it is to allow the
7166 * controller to only do as much DMA as needed to fetch the
7167 * command, with the DMA transfer size encoded in the lower
7168 * bits of the command address.
7170 static void calc_bucket_map(int bucket
[], int num_buckets
,
7171 int nsgs
, int min_blocks
, u32
*bucket_map
)
7175 /* Note, bucket_map must have nsgs+1 entries. */
7176 for (i
= 0; i
<= nsgs
; i
++) {
7177 /* Compute size of a command with i SG entries */
7178 size
= i
+ min_blocks
;
7179 b
= num_buckets
; /* Assume the biggest bucket */
7180 /* Find the bucket that is just big enough */
7181 for (j
= 0; j
< num_buckets
; j
++) {
7182 if (bucket
[j
] >= size
) {
7187 /* for a command with i SG entries, use bucket b. */
7192 static void hpsa_enter_performant_mode(struct ctlr_info
*h
, u32 trans_support
)
7195 unsigned long register_value
;
7196 unsigned long transMethod
= CFGTBL_Trans_Performant
|
7197 (trans_support
& CFGTBL_Trans_use_short_tags
) |
7198 CFGTBL_Trans_enable_directed_msix
|
7199 (trans_support
& (CFGTBL_Trans_io_accel1
|
7200 CFGTBL_Trans_io_accel2
));
7201 struct access_method access
= SA5_performant_access
;
7203 /* This is a bit complicated. There are 8 registers on
7204 * the controller which we write to to tell it 8 different
7205 * sizes of commands which there may be. It's a way of
7206 * reducing the DMA done to fetch each command. Encoded into
7207 * each command's tag are 3 bits which communicate to the controller
7208 * which of the eight sizes that command fits within. The size of
7209 * each command depends on how many scatter gather entries there are.
7210 * Each SG entry requires 16 bytes. The eight registers are programmed
7211 * with the number of 16-byte blocks a command of that size requires.
7212 * The smallest command possible requires 5 such 16 byte blocks.
7213 * the largest command possible requires SG_ENTRIES_IN_CMD + 4 16-byte
7214 * blocks. Note, this only extends to the SG entries contained
7215 * within the command block, and does not extend to chained blocks
7216 * of SG elements. bft[] contains the eight values we write to
7217 * the registers. They are not evenly distributed, but have more
7218 * sizes for small commands, and fewer sizes for larger commands.
7220 int bft
[8] = {5, 6, 8, 10, 12, 20, 28, SG_ENTRIES_IN_CMD
+ 4};
7221 #define MIN_IOACCEL2_BFT_ENTRY 5
7222 #define HPSA_IOACCEL2_HEADER_SZ 4
7223 int bft2
[16] = {MIN_IOACCEL2_BFT_ENTRY
, 6, 7, 8, 9, 10, 11, 12,
7224 13, 14, 15, 16, 17, 18, 19,
7225 HPSA_IOACCEL2_HEADER_SZ
+ IOACCEL2_MAXSGENTRIES
};
7226 BUILD_BUG_ON(ARRAY_SIZE(bft2
) != 16);
7227 BUILD_BUG_ON(ARRAY_SIZE(bft
) != 8);
7228 BUILD_BUG_ON(offsetof(struct io_accel2_cmd
, sg
) >
7229 16 * MIN_IOACCEL2_BFT_ENTRY
);
7230 BUILD_BUG_ON(sizeof(struct ioaccel2_sg_element
) != 16);
7231 BUILD_BUG_ON(28 > SG_ENTRIES_IN_CMD
+ 4);
7232 /* 5 = 1 s/g entry or 4k
7233 * 6 = 2 s/g entry or 8k
7234 * 8 = 4 s/g entry or 16k
7235 * 10 = 6 s/g entry or 24k
7238 /* If the controller supports either ioaccel method then
7239 * we can also use the RAID stack submit path that does not
7240 * perform the superfluous readl() after each command submission.
7242 if (trans_support
& (CFGTBL_Trans_io_accel1
| CFGTBL_Trans_io_accel2
))
7243 access
= SA5_performant_access_no_read
;
7245 /* Controller spec: zero out this buffer. */
7246 for (i
= 0; i
< h
->nreply_queues
; i
++)
7247 memset(h
->reply_queue
[i
].head
, 0, h
->reply_queue_size
);
7249 bft
[7] = SG_ENTRIES_IN_CMD
+ 4;
7250 calc_bucket_map(bft
, ARRAY_SIZE(bft
),
7251 SG_ENTRIES_IN_CMD
, 4, h
->blockFetchTable
);
7252 for (i
= 0; i
< 8; i
++)
7253 writel(bft
[i
], &h
->transtable
->BlockFetch
[i
]);
7255 /* size of controller ring buffer */
7256 writel(h
->max_commands
, &h
->transtable
->RepQSize
);
7257 writel(h
->nreply_queues
, &h
->transtable
->RepQCount
);
7258 writel(0, &h
->transtable
->RepQCtrAddrLow32
);
7259 writel(0, &h
->transtable
->RepQCtrAddrHigh32
);
7261 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7262 writel(0, &h
->transtable
->RepQAddr
[i
].upper
);
7263 writel(h
->reply_queue
[i
].busaddr
,
7264 &h
->transtable
->RepQAddr
[i
].lower
);
7267 writel(0, &h
->cfgtable
->HostWrite
.command_pool_addr_hi
);
7268 writel(transMethod
, &(h
->cfgtable
->HostWrite
.TransportRequest
));
7270 * enable outbound interrupt coalescing in accelerator mode;
7272 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7273 access
= SA5_ioaccel_mode1_access
;
7274 writel(10, &h
->cfgtable
->HostWrite
.CoalIntDelay
);
7275 writel(4, &h
->cfgtable
->HostWrite
.CoalIntCount
);
7277 if (trans_support
& CFGTBL_Trans_io_accel2
) {
7278 access
= SA5_ioaccel_mode2_access
;
7279 writel(10, &h
->cfgtable
->HostWrite
.CoalIntDelay
);
7280 writel(4, &h
->cfgtable
->HostWrite
.CoalIntCount
);
7283 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
7284 hpsa_wait_for_mode_change_ack(h
);
7285 register_value
= readl(&(h
->cfgtable
->TransportActive
));
7286 if (!(register_value
& CFGTBL_Trans_Performant
)) {
7287 dev_err(&h
->pdev
->dev
,
7288 "performant mode problem - transport not active\n");
7291 /* Change the access methods to the performant access methods */
7293 h
->transMethod
= transMethod
;
7295 if (!((trans_support
& CFGTBL_Trans_io_accel1
) ||
7296 (trans_support
& CFGTBL_Trans_io_accel2
)))
7299 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7300 /* Set up I/O accelerator mode */
7301 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7302 writel(i
, h
->vaddr
+ IOACCEL_MODE1_REPLY_QUEUE_INDEX
);
7303 h
->reply_queue
[i
].current_entry
=
7304 readl(h
->vaddr
+ IOACCEL_MODE1_PRODUCER_INDEX
);
7306 bft
[7] = h
->ioaccel_maxsg
+ 8;
7307 calc_bucket_map(bft
, ARRAY_SIZE(bft
), h
->ioaccel_maxsg
, 8,
7308 h
->ioaccel1_blockFetchTable
);
7310 /* initialize all reply queue entries to unused */
7311 for (i
= 0; i
< h
->nreply_queues
; i
++)
7312 memset(h
->reply_queue
[i
].head
,
7313 (u8
) IOACCEL_MODE1_REPLY_UNUSED
,
7314 h
->reply_queue_size
);
7316 /* set all the constant fields in the accelerator command
7317 * frames once at init time to save CPU cycles later.
7319 for (i
= 0; i
< h
->nr_cmds
; i
++) {
7320 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[i
];
7322 cp
->function
= IOACCEL1_FUNCTION_SCSIIO
;
7323 cp
->err_info
= (u32
) (h
->errinfo_pool_dhandle
+
7324 (i
* sizeof(struct ErrorInfo
)));
7325 cp
->err_info_len
= sizeof(struct ErrorInfo
);
7326 cp
->sgl_offset
= IOACCEL1_SGLOFFSET
;
7327 cp
->host_context_flags
=
7328 cpu_to_le16(IOACCEL1_HCFLAGS_CISS_FORMAT
);
7329 cp
->timeout_sec
= 0;
7332 cpu_to_le64((i
<< DIRECT_LOOKUP_SHIFT
) |
7335 cpu_to_le64(h
->ioaccel_cmd_pool_dhandle
+
7336 (i
* sizeof(struct io_accel1_cmd
)));
7338 } else if (trans_support
& CFGTBL_Trans_io_accel2
) {
7339 u64 cfg_offset
, cfg_base_addr_index
;
7340 u32 bft2_offset
, cfg_base_addr
;
7343 rc
= hpsa_find_cfg_addrs(h
->pdev
, h
->vaddr
, &cfg_base_addr
,
7344 &cfg_base_addr_index
, &cfg_offset
);
7345 BUILD_BUG_ON(offsetof(struct io_accel2_cmd
, sg
) != 64);
7346 bft2
[15] = h
->ioaccel_maxsg
+ HPSA_IOACCEL2_HEADER_SZ
;
7347 calc_bucket_map(bft2
, ARRAY_SIZE(bft2
), h
->ioaccel_maxsg
,
7348 4, h
->ioaccel2_blockFetchTable
);
7349 bft2_offset
= readl(&h
->cfgtable
->io_accel_request_size_offset
);
7350 BUILD_BUG_ON(offsetof(struct CfgTable
,
7351 io_accel_request_size_offset
) != 0xb8);
7352 h
->ioaccel2_bft2_regs
=
7353 remap_pci_mem(pci_resource_start(h
->pdev
,
7354 cfg_base_addr_index
) +
7355 cfg_offset
+ bft2_offset
,
7357 sizeof(*h
->ioaccel2_bft2_regs
));
7358 for (i
= 0; i
< ARRAY_SIZE(bft2
); i
++)
7359 writel(bft2
[i
], &h
->ioaccel2_bft2_regs
[i
]);
7361 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
7362 hpsa_wait_for_mode_change_ack(h
);
7365 static int hpsa_alloc_ioaccel_cmd_and_bft(struct ctlr_info
*h
)
7368 readl(&(h
->cfgtable
->io_accel_max_embedded_sg_count
));
7369 if (h
->ioaccel_maxsg
> IOACCEL1_MAXSGENTRIES
)
7370 h
->ioaccel_maxsg
= IOACCEL1_MAXSGENTRIES
;
7372 /* Command structures must be aligned on a 128-byte boundary
7373 * because the 7 lower bits of the address are used by the
7376 BUILD_BUG_ON(sizeof(struct io_accel1_cmd
) %
7377 IOACCEL1_COMMANDLIST_ALIGNMENT
);
7378 h
->ioaccel_cmd_pool
=
7379 pci_alloc_consistent(h
->pdev
,
7380 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
),
7381 &(h
->ioaccel_cmd_pool_dhandle
));
7383 h
->ioaccel1_blockFetchTable
=
7384 kmalloc(((h
->ioaccel_maxsg
+ 1) *
7385 sizeof(u32
)), GFP_KERNEL
);
7387 if ((h
->ioaccel_cmd_pool
== NULL
) ||
7388 (h
->ioaccel1_blockFetchTable
== NULL
))
7391 memset(h
->ioaccel_cmd_pool
, 0,
7392 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
));
7396 if (h
->ioaccel_cmd_pool
)
7397 pci_free_consistent(h
->pdev
,
7398 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
),
7399 h
->ioaccel_cmd_pool
, h
->ioaccel_cmd_pool_dhandle
);
7400 kfree(h
->ioaccel1_blockFetchTable
);
7404 static int ioaccel2_alloc_cmds_and_bft(struct ctlr_info
*h
)
7406 /* Allocate ioaccel2 mode command blocks and block fetch table */
7409 readl(&(h
->cfgtable
->io_accel_max_embedded_sg_count
));
7410 if (h
->ioaccel_maxsg
> IOACCEL2_MAXSGENTRIES
)
7411 h
->ioaccel_maxsg
= IOACCEL2_MAXSGENTRIES
;
7413 BUILD_BUG_ON(sizeof(struct io_accel2_cmd
) %
7414 IOACCEL2_COMMANDLIST_ALIGNMENT
);
7415 h
->ioaccel2_cmd_pool
=
7416 pci_alloc_consistent(h
->pdev
,
7417 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
7418 &(h
->ioaccel2_cmd_pool_dhandle
));
7420 h
->ioaccel2_blockFetchTable
=
7421 kmalloc(((h
->ioaccel_maxsg
+ 1) *
7422 sizeof(u32
)), GFP_KERNEL
);
7424 if ((h
->ioaccel2_cmd_pool
== NULL
) ||
7425 (h
->ioaccel2_blockFetchTable
== NULL
))
7428 memset(h
->ioaccel2_cmd_pool
, 0,
7429 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
));
7433 if (h
->ioaccel2_cmd_pool
)
7434 pci_free_consistent(h
->pdev
,
7435 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
7436 h
->ioaccel2_cmd_pool
, h
->ioaccel2_cmd_pool_dhandle
);
7437 kfree(h
->ioaccel2_blockFetchTable
);
7441 static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info
*h
)
7444 unsigned long transMethod
= CFGTBL_Trans_Performant
|
7445 CFGTBL_Trans_use_short_tags
;
7448 if (hpsa_simple_mode
)
7451 trans_support
= readl(&(h
->cfgtable
->TransportSupport
));
7452 if (!(trans_support
& PERFORMANT_MODE
))
7455 /* Check for I/O accelerator mode support */
7456 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7457 transMethod
|= CFGTBL_Trans_io_accel1
|
7458 CFGTBL_Trans_enable_directed_msix
;
7459 if (hpsa_alloc_ioaccel_cmd_and_bft(h
))
7462 if (trans_support
& CFGTBL_Trans_io_accel2
) {
7463 transMethod
|= CFGTBL_Trans_io_accel2
|
7464 CFGTBL_Trans_enable_directed_msix
;
7465 if (ioaccel2_alloc_cmds_and_bft(h
))
7470 h
->nreply_queues
= h
->msix_vector
> 0 ? h
->msix_vector
: 1;
7471 hpsa_get_max_perf_mode_cmds(h
);
7472 /* Performant mode ring buffer and supporting data structures */
7473 h
->reply_queue_size
= h
->max_commands
* sizeof(u64
);
7475 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7476 h
->reply_queue
[i
].head
= pci_alloc_consistent(h
->pdev
,
7477 h
->reply_queue_size
,
7478 &(h
->reply_queue
[i
].busaddr
));
7479 if (!h
->reply_queue
[i
].head
)
7481 h
->reply_queue
[i
].size
= h
->max_commands
;
7482 h
->reply_queue
[i
].wraparound
= 1; /* spec: init to 1 */
7483 h
->reply_queue
[i
].current_entry
= 0;
7486 /* Need a block fetch table for performant mode */
7487 h
->blockFetchTable
= kmalloc(((SG_ENTRIES_IN_CMD
+ 1) *
7488 sizeof(u32
)), GFP_KERNEL
);
7489 if (!h
->blockFetchTable
)
7492 hpsa_enter_performant_mode(h
, trans_support
);
7496 hpsa_free_reply_queues(h
);
7497 kfree(h
->blockFetchTable
);
7500 static int is_accelerated_cmd(struct CommandList
*c
)
7502 return c
->cmd_type
== CMD_IOACCEL1
|| c
->cmd_type
== CMD_IOACCEL2
;
7505 static void hpsa_drain_accel_commands(struct ctlr_info
*h
)
7507 struct CommandList
*c
= NULL
;
7508 unsigned long flags
;
7511 do { /* wait for all outstanding commands to drain out */
7513 spin_lock_irqsave(&h
->lock
, flags
);
7514 list_for_each_entry(c
, &h
->cmpQ
, list
)
7515 accel_cmds_out
+= is_accelerated_cmd(c
);
7516 list_for_each_entry(c
, &h
->reqQ
, list
)
7517 accel_cmds_out
+= is_accelerated_cmd(c
);
7518 spin_unlock_irqrestore(&h
->lock
, flags
);
7519 if (accel_cmds_out
<= 0)
7526 * This is it. Register the PCI driver information for the cards we control
7527 * the OS will call our registered routines when it finds one of our cards.
7529 static int __init
hpsa_init(void)
7531 return pci_register_driver(&hpsa_pci_driver
);
7534 static void __exit
hpsa_cleanup(void)
7536 pci_unregister_driver(&hpsa_pci_driver
);
7539 static void __attribute__((unused
)) verify_offsets(void)
7541 #define VERIFY_OFFSET(member, offset) \
7542 BUILD_BUG_ON(offsetof(struct raid_map_data, member) != offset)
7544 VERIFY_OFFSET(structure_size
, 0);
7545 VERIFY_OFFSET(volume_blk_size
, 4);
7546 VERIFY_OFFSET(volume_blk_cnt
, 8);
7547 VERIFY_OFFSET(phys_blk_shift
, 16);
7548 VERIFY_OFFSET(parity_rotation_shift
, 17);
7549 VERIFY_OFFSET(strip_size
, 18);
7550 VERIFY_OFFSET(disk_starting_blk
, 20);
7551 VERIFY_OFFSET(disk_blk_cnt
, 28);
7552 VERIFY_OFFSET(data_disks_per_row
, 36);
7553 VERIFY_OFFSET(metadata_disks_per_row
, 38);
7554 VERIFY_OFFSET(row_cnt
, 40);
7555 VERIFY_OFFSET(layout_map_count
, 42);
7556 VERIFY_OFFSET(flags
, 44);
7557 VERIFY_OFFSET(dekindex
, 46);
7558 /* VERIFY_OFFSET(reserved, 48 */
7559 VERIFY_OFFSET(data
, 64);
7561 #undef VERIFY_OFFSET
7563 #define VERIFY_OFFSET(member, offset) \
7564 BUILD_BUG_ON(offsetof(struct io_accel2_cmd, member) != offset)
7566 VERIFY_OFFSET(IU_type
, 0);
7567 VERIFY_OFFSET(direction
, 1);
7568 VERIFY_OFFSET(reply_queue
, 2);
7569 /* VERIFY_OFFSET(reserved1, 3); */
7570 VERIFY_OFFSET(scsi_nexus
, 4);
7571 VERIFY_OFFSET(Tag
, 8);
7572 VERIFY_OFFSET(cdb
, 16);
7573 VERIFY_OFFSET(cciss_lun
, 32);
7574 VERIFY_OFFSET(data_len
, 40);
7575 VERIFY_OFFSET(cmd_priority_task_attr
, 44);
7576 VERIFY_OFFSET(sg_count
, 45);
7577 /* VERIFY_OFFSET(reserved3 */
7578 VERIFY_OFFSET(err_ptr
, 48);
7579 VERIFY_OFFSET(err_len
, 56);
7580 /* VERIFY_OFFSET(reserved4 */
7581 VERIFY_OFFSET(sg
, 64);
7583 #undef VERIFY_OFFSET
7585 #define VERIFY_OFFSET(member, offset) \
7586 BUILD_BUG_ON(offsetof(struct io_accel1_cmd, member) != offset)
7588 VERIFY_OFFSET(dev_handle
, 0x00);
7589 VERIFY_OFFSET(reserved1
, 0x02);
7590 VERIFY_OFFSET(function
, 0x03);
7591 VERIFY_OFFSET(reserved2
, 0x04);
7592 VERIFY_OFFSET(err_info
, 0x0C);
7593 VERIFY_OFFSET(reserved3
, 0x10);
7594 VERIFY_OFFSET(err_info_len
, 0x12);
7595 VERIFY_OFFSET(reserved4
, 0x13);
7596 VERIFY_OFFSET(sgl_offset
, 0x14);
7597 VERIFY_OFFSET(reserved5
, 0x15);
7598 VERIFY_OFFSET(transfer_len
, 0x1C);
7599 VERIFY_OFFSET(reserved6
, 0x20);
7600 VERIFY_OFFSET(io_flags
, 0x24);
7601 VERIFY_OFFSET(reserved7
, 0x26);
7602 VERIFY_OFFSET(LUN
, 0x34);
7603 VERIFY_OFFSET(control
, 0x3C);
7604 VERIFY_OFFSET(CDB
, 0x40);
7605 VERIFY_OFFSET(reserved8
, 0x50);
7606 VERIFY_OFFSET(host_context_flags
, 0x60);
7607 VERIFY_OFFSET(timeout_sec
, 0x62);
7608 VERIFY_OFFSET(ReplyQueue
, 0x64);
7609 VERIFY_OFFSET(reserved9
, 0x65);
7610 VERIFY_OFFSET(tag
, 0x68);
7611 VERIFY_OFFSET(host_addr
, 0x70);
7612 VERIFY_OFFSET(CISS_LUN
, 0x78);
7613 VERIFY_OFFSET(SG
, 0x78 + 8);
7614 #undef VERIFY_OFFSET
7617 module_init(hpsa_init
);
7618 module_exit(hpsa_cleanup
);