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/div64.h>
57 /* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */
58 #define HPSA_DRIVER_VERSION "3.4.4-1"
59 #define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
62 /* How long to wait (in milliseconds) for board to go into simple mode */
63 #define MAX_CONFIG_WAIT 30000
64 #define MAX_IOCTL_CONFIG_WAIT 1000
66 /*define how many times we will try a command because of bus resets */
67 #define MAX_CMD_RETRIES 3
69 /* Embedded module documentation macros - see modules.h */
70 MODULE_AUTHOR("Hewlett-Packard Company");
71 MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \
73 MODULE_SUPPORTED_DEVICE("HP Smart Array Controllers");
74 MODULE_VERSION(HPSA_DRIVER_VERSION
);
75 MODULE_LICENSE("GPL");
77 static int hpsa_allow_any
;
78 module_param(hpsa_allow_any
, int, S_IRUGO
|S_IWUSR
);
79 MODULE_PARM_DESC(hpsa_allow_any
,
80 "Allow hpsa driver to access unknown HP Smart Array hardware");
81 static int hpsa_simple_mode
;
82 module_param(hpsa_simple_mode
, int, S_IRUGO
|S_IWUSR
);
83 MODULE_PARM_DESC(hpsa_simple_mode
,
84 "Use 'simple mode' rather than 'performant mode'");
86 /* define the PCI info for the cards we can control */
87 static const struct pci_device_id hpsa_pci_device_id
[] = {
88 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3241},
89 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3243},
90 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3245},
91 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3247},
92 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3249},
93 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x324A},
94 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x324B},
95 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3233},
96 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3350},
97 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3351},
98 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3352},
99 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3353},
100 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3354},
101 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3355},
102 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3356},
103 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1921},
104 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1922},
105 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1923},
106 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1924},
107 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1926},
108 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1928},
109 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1929},
110 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BD},
111 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BE},
112 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BF},
113 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C0},
114 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C1},
115 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C2},
116 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C3},
117 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C4},
118 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C5},
119 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C6},
120 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C7},
121 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C8},
122 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C9},
123 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CA},
124 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CB},
125 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CC},
126 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CD},
127 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CE},
128 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0076},
129 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0087},
130 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x007D},
131 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0088},
132 {PCI_VENDOR_ID_HP
, 0x333f, 0x103c, 0x333f},
133 {PCI_VENDOR_ID_HP
, PCI_ANY_ID
, PCI_ANY_ID
, PCI_ANY_ID
,
134 PCI_CLASS_STORAGE_RAID
<< 8, 0xffff << 8, 0},
138 MODULE_DEVICE_TABLE(pci
, hpsa_pci_device_id
);
140 /* board_id = Subsystem Device ID & Vendor ID
141 * product = Marketing Name for the board
142 * access = Address of the struct of function pointers
144 static struct board_type products
[] = {
145 {0x3241103C, "Smart Array P212", &SA5_access
},
146 {0x3243103C, "Smart Array P410", &SA5_access
},
147 {0x3245103C, "Smart Array P410i", &SA5_access
},
148 {0x3247103C, "Smart Array P411", &SA5_access
},
149 {0x3249103C, "Smart Array P812", &SA5_access
},
150 {0x324A103C, "Smart Array P712m", &SA5_access
},
151 {0x324B103C, "Smart Array P711m", &SA5_access
},
152 {0x3233103C, "HP StorageWorks 1210m", &SA5_access
}, /* alias of 333f */
153 {0x3350103C, "Smart Array P222", &SA5_access
},
154 {0x3351103C, "Smart Array P420", &SA5_access
},
155 {0x3352103C, "Smart Array P421", &SA5_access
},
156 {0x3353103C, "Smart Array P822", &SA5_access
},
157 {0x3354103C, "Smart Array P420i", &SA5_access
},
158 {0x3355103C, "Smart Array P220i", &SA5_access
},
159 {0x3356103C, "Smart Array P721m", &SA5_access
},
160 {0x1921103C, "Smart Array P830i", &SA5_access
},
161 {0x1922103C, "Smart Array P430", &SA5_access
},
162 {0x1923103C, "Smart Array P431", &SA5_access
},
163 {0x1924103C, "Smart Array P830", &SA5_access
},
164 {0x1926103C, "Smart Array P731m", &SA5_access
},
165 {0x1928103C, "Smart Array P230i", &SA5_access
},
166 {0x1929103C, "Smart Array P530", &SA5_access
},
167 {0x21BD103C, "Smart Array", &SA5_access
},
168 {0x21BE103C, "Smart Array", &SA5_access
},
169 {0x21BF103C, "Smart Array", &SA5_access
},
170 {0x21C0103C, "Smart Array", &SA5_access
},
171 {0x21C1103C, "Smart Array", &SA5_access
},
172 {0x21C2103C, "Smart Array", &SA5_access
},
173 {0x21C3103C, "Smart Array", &SA5_access
},
174 {0x21C4103C, "Smart Array", &SA5_access
},
175 {0x21C5103C, "Smart Array", &SA5_access
},
176 {0x21C6103C, "Smart Array", &SA5_access
},
177 {0x21C7103C, "Smart Array", &SA5_access
},
178 {0x21C8103C, "Smart Array", &SA5_access
},
179 {0x21C9103C, "Smart Array", &SA5_access
},
180 {0x21CA103C, "Smart Array", &SA5_access
},
181 {0x21CB103C, "Smart Array", &SA5_access
},
182 {0x21CC103C, "Smart Array", &SA5_access
},
183 {0x21CD103C, "Smart Array", &SA5_access
},
184 {0x21CE103C, "Smart Array", &SA5_access
},
185 {0x00761590, "HP Storage P1224 Array Controller", &SA5_access
},
186 {0x00871590, "HP Storage P1224e Array Controller", &SA5_access
},
187 {0x007D1590, "HP Storage P1228 Array Controller", &SA5_access
},
188 {0x00881590, "HP Storage P1228e Array Controller", &SA5_access
},
189 {0x333f103c, "HP StorageWorks 1210m Array Controller", &SA5_access
},
190 {0xFFFF103C, "Unknown Smart Array", &SA5_access
},
193 static int number_of_controllers
;
195 static irqreturn_t
do_hpsa_intr_intx(int irq
, void *dev_id
);
196 static irqreturn_t
do_hpsa_intr_msi(int irq
, void *dev_id
);
197 static int hpsa_ioctl(struct scsi_device
*dev
, int cmd
, void __user
*arg
);
198 static void lock_and_start_io(struct ctlr_info
*h
);
199 static void start_io(struct ctlr_info
*h
, unsigned long *flags
);
202 static int hpsa_compat_ioctl(struct scsi_device
*dev
, int cmd
,
206 static void cmd_free(struct ctlr_info
*h
, struct CommandList
*c
);
207 static void cmd_special_free(struct ctlr_info
*h
, struct CommandList
*c
);
208 static struct CommandList
*cmd_alloc(struct ctlr_info
*h
);
209 static struct CommandList
*cmd_special_alloc(struct ctlr_info
*h
);
210 static int fill_cmd(struct CommandList
*c
, u8 cmd
, struct ctlr_info
*h
,
211 void *buff
, size_t size
, u16 page_code
, unsigned char *scsi3addr
,
213 #define VPD_PAGE (1 << 8)
215 static int hpsa_scsi_queue_command(struct Scsi_Host
*h
, struct scsi_cmnd
*cmd
);
216 static void hpsa_scan_start(struct Scsi_Host
*);
217 static int hpsa_scan_finished(struct Scsi_Host
*sh
,
218 unsigned long elapsed_time
);
219 static int hpsa_change_queue_depth(struct scsi_device
*sdev
,
220 int qdepth
, int reason
);
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
, int *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", h
->commands_outstanding
);
400 static ssize_t
host_show_transport_mode(struct device
*dev
,
401 struct device_attribute
*attr
, char *buf
)
404 struct Scsi_Host
*shost
= class_to_shost(dev
);
406 h
= shost_to_hba(shost
);
407 return snprintf(buf
, 20, "%s\n",
408 h
->transMethod
& CFGTBL_Trans_Performant
?
409 "performant" : "simple");
412 static ssize_t
host_show_hp_ssd_smart_path_status(struct device
*dev
,
413 struct device_attribute
*attr
, char *buf
)
416 struct Scsi_Host
*shost
= class_to_shost(dev
);
418 h
= shost_to_hba(shost
);
419 return snprintf(buf
, 30, "HP SSD Smart Path %s\n",
420 (h
->acciopath_status
== 1) ? "enabled" : "disabled");
423 /* List of controllers which cannot be hard reset on kexec with reset_devices */
424 static u32 unresettable_controller
[] = {
425 0x324a103C, /* Smart Array P712m */
426 0x324b103C, /* SmartArray P711m */
427 0x3223103C, /* Smart Array P800 */
428 0x3234103C, /* Smart Array P400 */
429 0x3235103C, /* Smart Array P400i */
430 0x3211103C, /* Smart Array E200i */
431 0x3212103C, /* Smart Array E200 */
432 0x3213103C, /* Smart Array E200i */
433 0x3214103C, /* Smart Array E200i */
434 0x3215103C, /* Smart Array E200i */
435 0x3237103C, /* Smart Array E500 */
436 0x323D103C, /* Smart Array P700m */
437 0x40800E11, /* Smart Array 5i */
438 0x409C0E11, /* Smart Array 6400 */
439 0x409D0E11, /* Smart Array 6400 EM */
440 0x40700E11, /* Smart Array 5300 */
441 0x40820E11, /* Smart Array 532 */
442 0x40830E11, /* Smart Array 5312 */
443 0x409A0E11, /* Smart Array 641 */
444 0x409B0E11, /* Smart Array 642 */
445 0x40910E11, /* Smart Array 6i */
448 /* List of controllers which cannot even be soft reset */
449 static u32 soft_unresettable_controller
[] = {
450 0x40800E11, /* Smart Array 5i */
451 0x40700E11, /* Smart Array 5300 */
452 0x40820E11, /* Smart Array 532 */
453 0x40830E11, /* Smart Array 5312 */
454 0x409A0E11, /* Smart Array 641 */
455 0x409B0E11, /* Smart Array 642 */
456 0x40910E11, /* Smart Array 6i */
457 /* Exclude 640x boards. These are two pci devices in one slot
458 * which share a battery backed cache module. One controls the
459 * cache, the other accesses the cache through the one that controls
460 * it. If we reset the one controlling the cache, the other will
461 * likely not be happy. Just forbid resetting this conjoined mess.
462 * The 640x isn't really supported by hpsa anyway.
464 0x409C0E11, /* Smart Array 6400 */
465 0x409D0E11, /* Smart Array 6400 EM */
468 static int ctlr_is_hard_resettable(u32 board_id
)
472 for (i
= 0; i
< ARRAY_SIZE(unresettable_controller
); i
++)
473 if (unresettable_controller
[i
] == board_id
)
478 static int ctlr_is_soft_resettable(u32 board_id
)
482 for (i
= 0; i
< ARRAY_SIZE(soft_unresettable_controller
); i
++)
483 if (soft_unresettable_controller
[i
] == board_id
)
488 static int ctlr_is_resettable(u32 board_id
)
490 return ctlr_is_hard_resettable(board_id
) ||
491 ctlr_is_soft_resettable(board_id
);
494 static ssize_t
host_show_resettable(struct device
*dev
,
495 struct device_attribute
*attr
, char *buf
)
498 struct Scsi_Host
*shost
= class_to_shost(dev
);
500 h
= shost_to_hba(shost
);
501 return snprintf(buf
, 20, "%d\n", ctlr_is_resettable(h
->board_id
));
504 static inline int is_logical_dev_addr_mode(unsigned char scsi3addr
[])
506 return (scsi3addr
[3] & 0xC0) == 0x40;
509 static const char *raid_label
[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
512 #define HPSA_RAID_0 0
513 #define HPSA_RAID_4 1
514 #define HPSA_RAID_1 2 /* also used for RAID 10 */
515 #define HPSA_RAID_5 3 /* also used for RAID 50 */
516 #define HPSA_RAID_51 4
517 #define HPSA_RAID_6 5 /* also used for RAID 60 */
518 #define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */
519 #define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 1)
521 static ssize_t
raid_level_show(struct device
*dev
,
522 struct device_attribute
*attr
, char *buf
)
525 unsigned char rlevel
;
527 struct scsi_device
*sdev
;
528 struct hpsa_scsi_dev_t
*hdev
;
531 sdev
= to_scsi_device(dev
);
532 h
= sdev_to_hba(sdev
);
533 spin_lock_irqsave(&h
->lock
, flags
);
534 hdev
= sdev
->hostdata
;
536 spin_unlock_irqrestore(&h
->lock
, flags
);
540 /* Is this even a logical drive? */
541 if (!is_logical_dev_addr_mode(hdev
->scsi3addr
)) {
542 spin_unlock_irqrestore(&h
->lock
, flags
);
543 l
= snprintf(buf
, PAGE_SIZE
, "N/A\n");
547 rlevel
= hdev
->raid_level
;
548 spin_unlock_irqrestore(&h
->lock
, flags
);
549 if (rlevel
> RAID_UNKNOWN
)
550 rlevel
= RAID_UNKNOWN
;
551 l
= snprintf(buf
, PAGE_SIZE
, "RAID %s\n", raid_label
[rlevel
]);
555 static ssize_t
lunid_show(struct device
*dev
,
556 struct device_attribute
*attr
, char *buf
)
559 struct scsi_device
*sdev
;
560 struct hpsa_scsi_dev_t
*hdev
;
562 unsigned char lunid
[8];
564 sdev
= to_scsi_device(dev
);
565 h
= sdev_to_hba(sdev
);
566 spin_lock_irqsave(&h
->lock
, flags
);
567 hdev
= sdev
->hostdata
;
569 spin_unlock_irqrestore(&h
->lock
, flags
);
572 memcpy(lunid
, hdev
->scsi3addr
, sizeof(lunid
));
573 spin_unlock_irqrestore(&h
->lock
, flags
);
574 return snprintf(buf
, 20, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
575 lunid
[0], lunid
[1], lunid
[2], lunid
[3],
576 lunid
[4], lunid
[5], lunid
[6], lunid
[7]);
579 static ssize_t
unique_id_show(struct device
*dev
,
580 struct device_attribute
*attr
, char *buf
)
583 struct scsi_device
*sdev
;
584 struct hpsa_scsi_dev_t
*hdev
;
586 unsigned char sn
[16];
588 sdev
= to_scsi_device(dev
);
589 h
= sdev_to_hba(sdev
);
590 spin_lock_irqsave(&h
->lock
, flags
);
591 hdev
= sdev
->hostdata
;
593 spin_unlock_irqrestore(&h
->lock
, flags
);
596 memcpy(sn
, hdev
->device_id
, sizeof(sn
));
597 spin_unlock_irqrestore(&h
->lock
, flags
);
598 return snprintf(buf
, 16 * 2 + 2,
599 "%02X%02X%02X%02X%02X%02X%02X%02X"
600 "%02X%02X%02X%02X%02X%02X%02X%02X\n",
601 sn
[0], sn
[1], sn
[2], sn
[3],
602 sn
[4], sn
[5], sn
[6], sn
[7],
603 sn
[8], sn
[9], sn
[10], sn
[11],
604 sn
[12], sn
[13], sn
[14], sn
[15]);
607 static ssize_t
host_show_hp_ssd_smart_path_enabled(struct device
*dev
,
608 struct device_attribute
*attr
, char *buf
)
611 struct scsi_device
*sdev
;
612 struct hpsa_scsi_dev_t
*hdev
;
616 sdev
= to_scsi_device(dev
);
617 h
= sdev_to_hba(sdev
);
618 spin_lock_irqsave(&h
->lock
, flags
);
619 hdev
= sdev
->hostdata
;
621 spin_unlock_irqrestore(&h
->lock
, flags
);
624 offload_enabled
= hdev
->offload_enabled
;
625 spin_unlock_irqrestore(&h
->lock
, flags
);
626 return snprintf(buf
, 20, "%d\n", offload_enabled
);
629 static DEVICE_ATTR(raid_level
, S_IRUGO
, raid_level_show
, NULL
);
630 static DEVICE_ATTR(lunid
, S_IRUGO
, lunid_show
, NULL
);
631 static DEVICE_ATTR(unique_id
, S_IRUGO
, unique_id_show
, NULL
);
632 static DEVICE_ATTR(rescan
, S_IWUSR
, NULL
, host_store_rescan
);
633 static DEVICE_ATTR(hp_ssd_smart_path_enabled
, S_IRUGO
,
634 host_show_hp_ssd_smart_path_enabled
, NULL
);
635 static DEVICE_ATTR(hp_ssd_smart_path_status
, S_IWUSR
|S_IRUGO
|S_IROTH
,
636 host_show_hp_ssd_smart_path_status
,
637 host_store_hp_ssd_smart_path_status
);
638 static DEVICE_ATTR(raid_offload_debug
, S_IWUSR
, NULL
,
639 host_store_raid_offload_debug
);
640 static DEVICE_ATTR(firmware_revision
, S_IRUGO
,
641 host_show_firmware_revision
, NULL
);
642 static DEVICE_ATTR(commands_outstanding
, S_IRUGO
,
643 host_show_commands_outstanding
, NULL
);
644 static DEVICE_ATTR(transport_mode
, S_IRUGO
,
645 host_show_transport_mode
, NULL
);
646 static DEVICE_ATTR(resettable
, S_IRUGO
,
647 host_show_resettable
, NULL
);
649 static struct device_attribute
*hpsa_sdev_attrs
[] = {
650 &dev_attr_raid_level
,
653 &dev_attr_hp_ssd_smart_path_enabled
,
657 static struct device_attribute
*hpsa_shost_attrs
[] = {
659 &dev_attr_firmware_revision
,
660 &dev_attr_commands_outstanding
,
661 &dev_attr_transport_mode
,
662 &dev_attr_resettable
,
663 &dev_attr_hp_ssd_smart_path_status
,
664 &dev_attr_raid_offload_debug
,
668 static struct scsi_host_template hpsa_driver_template
= {
669 .module
= THIS_MODULE
,
672 .queuecommand
= hpsa_scsi_queue_command
,
673 .scan_start
= hpsa_scan_start
,
674 .scan_finished
= hpsa_scan_finished
,
675 .change_queue_depth
= hpsa_change_queue_depth
,
677 .use_clustering
= ENABLE_CLUSTERING
,
678 .eh_abort_handler
= hpsa_eh_abort_handler
,
679 .eh_device_reset_handler
= hpsa_eh_device_reset_handler
,
681 .slave_alloc
= hpsa_slave_alloc
,
682 .slave_destroy
= hpsa_slave_destroy
,
684 .compat_ioctl
= hpsa_compat_ioctl
,
686 .sdev_attrs
= hpsa_sdev_attrs
,
687 .shost_attrs
= hpsa_shost_attrs
,
693 /* Enqueuing and dequeuing functions for cmdlists. */
694 static inline void addQ(struct list_head
*list
, struct CommandList
*c
)
696 list_add_tail(&c
->list
, list
);
699 static inline u32
next_command(struct ctlr_info
*h
, u8 q
)
702 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 spin_lock_irqsave(&h
->lock
, flags
);
715 h
->commands_outstanding
--;
716 spin_unlock_irqrestore(&h
->lock
, flags
);
720 /* Check for wraparound */
721 if (rq
->current_entry
== h
->max_commands
) {
722 rq
->current_entry
= 0;
729 * There are some special bits in the bus address of the
730 * command that we have to set for the controller to know
731 * how to process the command:
733 * Normal performant mode:
734 * bit 0: 1 means performant mode, 0 means simple mode.
735 * bits 1-3 = block fetch table entry
736 * bits 4-6 = command type (== 0)
739 * bit 0 = "performant mode" bit.
740 * bits 1-3 = block fetch table entry
741 * bits 4-6 = command type (== 110)
742 * (command type is needed because ioaccel1 mode
743 * commands are submitted through the same register as normal
744 * mode commands, so this is how the controller knows whether
745 * the command is normal mode or ioaccel1 mode.)
748 * bit 0 = "performant mode" bit.
749 * bits 1-4 = block fetch table entry (note extra bit)
750 * bits 4-6 = not needed, because ioaccel2 mode has
751 * a separate special register for submitting commands.
754 /* set_performant_mode: Modify the tag for cciss performant
755 * set bit 0 for pull model, bits 3-1 for block fetch
758 static void set_performant_mode(struct ctlr_info
*h
, struct CommandList
*c
)
760 if (likely(h
->transMethod
& CFGTBL_Trans_Performant
)) {
761 c
->busaddr
|= 1 | (h
->blockFetchTable
[c
->Header
.SGList
] << 1);
762 if (likely(h
->msix_vector
> 0))
763 c
->Header
.ReplyQueue
=
764 raw_smp_processor_id() % h
->nreply_queues
;
768 static void set_ioaccel1_performant_mode(struct ctlr_info
*h
,
769 struct CommandList
*c
)
771 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[c
->cmdindex
];
773 /* Tell the controller to post the reply to the queue for this
774 * processor. This seems to give the best I/O throughput.
776 cp
->ReplyQueue
= smp_processor_id() % h
->nreply_queues
;
777 /* Set the bits in the address sent down to include:
778 * - performant mode bit (bit 0)
779 * - pull count (bits 1-3)
780 * - command type (bits 4-6)
782 c
->busaddr
|= 1 | (h
->ioaccel1_blockFetchTable
[c
->Header
.SGList
] << 1) |
783 IOACCEL1_BUSADDR_CMDTYPE
;
786 static void set_ioaccel2_performant_mode(struct ctlr_info
*h
,
787 struct CommandList
*c
)
789 struct io_accel2_cmd
*cp
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
791 /* Tell the controller to post the reply to the queue for this
792 * processor. This seems to give the best I/O throughput.
794 cp
->reply_queue
= smp_processor_id() % h
->nreply_queues
;
795 /* Set the bits in the address sent down to include:
796 * - performant mode bit not used in ioaccel mode 2
797 * - pull count (bits 0-3)
798 * - command type isn't needed for ioaccel2
800 c
->busaddr
|= (h
->ioaccel2_blockFetchTable
[cp
->sg_count
]);
803 static int is_firmware_flash_cmd(u8
*cdb
)
805 return cdb
[0] == BMIC_WRITE
&& cdb
[6] == BMIC_FLASH_FIRMWARE
;
809 * During firmware flash, the heartbeat register may not update as frequently
810 * as it should. So we dial down lockup detection during firmware flash. and
811 * dial it back up when firmware flash completes.
813 #define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ)
814 #define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ)
815 static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info
*h
,
816 struct CommandList
*c
)
818 if (!is_firmware_flash_cmd(c
->Request
.CDB
))
820 atomic_inc(&h
->firmware_flash_in_progress
);
821 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH
;
824 static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info
*h
,
825 struct CommandList
*c
)
827 if (is_firmware_flash_cmd(c
->Request
.CDB
) &&
828 atomic_dec_and_test(&h
->firmware_flash_in_progress
))
829 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL
;
832 static void enqueue_cmd_and_start_io(struct ctlr_info
*h
,
833 struct CommandList
*c
)
837 switch (c
->cmd_type
) {
839 set_ioaccel1_performant_mode(h
, c
);
842 set_ioaccel2_performant_mode(h
, c
);
845 set_performant_mode(h
, c
);
847 dial_down_lockup_detection_during_fw_flash(h
, c
);
848 spin_lock_irqsave(&h
->lock
, flags
);
852 spin_unlock_irqrestore(&h
->lock
, flags
);
855 static inline void removeQ(struct CommandList
*c
)
857 if (WARN_ON(list_empty(&c
->list
)))
859 list_del_init(&c
->list
);
862 static inline int is_hba_lunid(unsigned char scsi3addr
[])
864 return memcmp(scsi3addr
, RAID_CTLR_LUNID
, 8) == 0;
867 static inline int is_scsi_rev_5(struct ctlr_info
*h
)
869 if (!h
->hba_inquiry_data
)
871 if ((h
->hba_inquiry_data
[2] & 0x07) == 5)
876 static int hpsa_find_target_lun(struct ctlr_info
*h
,
877 unsigned char scsi3addr
[], int bus
, int *target
, int *lun
)
879 /* finds an unused bus, target, lun for a new physical device
880 * assumes h->devlock is held
883 DECLARE_BITMAP(lun_taken
, HPSA_MAX_DEVICES
);
885 bitmap_zero(lun_taken
, HPSA_MAX_DEVICES
);
887 for (i
= 0; i
< h
->ndevices
; i
++) {
888 if (h
->dev
[i
]->bus
== bus
&& h
->dev
[i
]->target
!= -1)
889 __set_bit(h
->dev
[i
]->target
, lun_taken
);
892 i
= find_first_zero_bit(lun_taken
, HPSA_MAX_DEVICES
);
893 if (i
< HPSA_MAX_DEVICES
) {
902 /* Add an entry into h->dev[] array. */
903 static int hpsa_scsi_add_entry(struct ctlr_info
*h
, int hostno
,
904 struct hpsa_scsi_dev_t
*device
,
905 struct hpsa_scsi_dev_t
*added
[], int *nadded
)
907 /* assumes h->devlock is held */
910 unsigned char addr1
[8], addr2
[8];
911 struct hpsa_scsi_dev_t
*sd
;
913 if (n
>= HPSA_MAX_DEVICES
) {
914 dev_err(&h
->pdev
->dev
, "too many devices, some will be "
919 /* physical devices do not have lun or target assigned until now. */
920 if (device
->lun
!= -1)
921 /* Logical device, lun is already assigned. */
924 /* If this device a non-zero lun of a multi-lun device
925 * byte 4 of the 8-byte LUN addr will contain the logical
926 * unit no, zero otherise.
928 if (device
->scsi3addr
[4] == 0) {
929 /* This is not a non-zero lun of a multi-lun device */
930 if (hpsa_find_target_lun(h
, device
->scsi3addr
,
931 device
->bus
, &device
->target
, &device
->lun
) != 0)
936 /* This is a non-zero lun of a multi-lun device.
937 * Search through our list and find the device which
938 * has the same 8 byte LUN address, excepting byte 4.
939 * Assign the same bus and target for this new LUN.
940 * Use the logical unit number from the firmware.
942 memcpy(addr1
, device
->scsi3addr
, 8);
944 for (i
= 0; i
< n
; i
++) {
946 memcpy(addr2
, sd
->scsi3addr
, 8);
948 /* differ only in byte 4? */
949 if (memcmp(addr1
, addr2
, 8) == 0) {
950 device
->bus
= sd
->bus
;
951 device
->target
= sd
->target
;
952 device
->lun
= device
->scsi3addr
[4];
956 if (device
->lun
== -1) {
957 dev_warn(&h
->pdev
->dev
, "physical device with no LUN=0,"
958 " suspect firmware bug or unsupported hardware "
967 added
[*nadded
] = device
;
970 /* initially, (before registering with scsi layer) we don't
971 * know our hostno and we don't want to print anything first
972 * time anyway (the scsi layer's inquiries will show that info)
974 /* if (hostno != -1) */
975 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d added.\n",
976 scsi_device_type(device
->devtype
), hostno
,
977 device
->bus
, device
->target
, device
->lun
);
981 /* Update an entry in h->dev[] array. */
982 static void hpsa_scsi_update_entry(struct ctlr_info
*h
, int hostno
,
983 int entry
, struct hpsa_scsi_dev_t
*new_entry
)
985 /* assumes h->devlock is held */
986 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
988 /* Raid level changed. */
989 h
->dev
[entry
]->raid_level
= new_entry
->raid_level
;
991 /* Raid offload parameters changed. */
992 h
->dev
[entry
]->offload_config
= new_entry
->offload_config
;
993 h
->dev
[entry
]->offload_enabled
= new_entry
->offload_enabled
;
994 h
->dev
[entry
]->ioaccel_handle
= new_entry
->ioaccel_handle
;
995 h
->dev
[entry
]->offload_to_mirror
= new_entry
->offload_to_mirror
;
996 h
->dev
[entry
]->raid_map
= new_entry
->raid_map
;
998 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d updated.\n",
999 scsi_device_type(new_entry
->devtype
), hostno
, new_entry
->bus
,
1000 new_entry
->target
, new_entry
->lun
);
1003 /* Replace an entry from h->dev[] array. */
1004 static void hpsa_scsi_replace_entry(struct ctlr_info
*h
, int hostno
,
1005 int entry
, struct hpsa_scsi_dev_t
*new_entry
,
1006 struct hpsa_scsi_dev_t
*added
[], int *nadded
,
1007 struct hpsa_scsi_dev_t
*removed
[], int *nremoved
)
1009 /* assumes h->devlock is held */
1010 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
1011 removed
[*nremoved
] = h
->dev
[entry
];
1015 * New physical devices won't have target/lun assigned yet
1016 * so we need to preserve the values in the slot we are replacing.
1018 if (new_entry
->target
== -1) {
1019 new_entry
->target
= h
->dev
[entry
]->target
;
1020 new_entry
->lun
= h
->dev
[entry
]->lun
;
1023 h
->dev
[entry
] = new_entry
;
1024 added
[*nadded
] = new_entry
;
1026 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d changed.\n",
1027 scsi_device_type(new_entry
->devtype
), hostno
, new_entry
->bus
,
1028 new_entry
->target
, new_entry
->lun
);
1031 /* Remove an entry from h->dev[] array. */
1032 static void hpsa_scsi_remove_entry(struct ctlr_info
*h
, int hostno
, int entry
,
1033 struct hpsa_scsi_dev_t
*removed
[], int *nremoved
)
1035 /* assumes h->devlock is held */
1037 struct hpsa_scsi_dev_t
*sd
;
1039 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
1042 removed
[*nremoved
] = h
->dev
[entry
];
1045 for (i
= entry
; i
< h
->ndevices
-1; i
++)
1046 h
->dev
[i
] = h
->dev
[i
+1];
1048 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d removed.\n",
1049 scsi_device_type(sd
->devtype
), hostno
, sd
->bus
, sd
->target
,
1053 #define SCSI3ADDR_EQ(a, b) ( \
1054 (a)[7] == (b)[7] && \
1055 (a)[6] == (b)[6] && \
1056 (a)[5] == (b)[5] && \
1057 (a)[4] == (b)[4] && \
1058 (a)[3] == (b)[3] && \
1059 (a)[2] == (b)[2] && \
1060 (a)[1] == (b)[1] && \
1063 static void fixup_botched_add(struct ctlr_info
*h
,
1064 struct hpsa_scsi_dev_t
*added
)
1066 /* called when scsi_add_device fails in order to re-adjust
1067 * h->dev[] to match the mid layer's view.
1069 unsigned long flags
;
1072 spin_lock_irqsave(&h
->lock
, flags
);
1073 for (i
= 0; i
< h
->ndevices
; i
++) {
1074 if (h
->dev
[i
] == added
) {
1075 for (j
= i
; j
< h
->ndevices
-1; j
++)
1076 h
->dev
[j
] = h
->dev
[j
+1];
1081 spin_unlock_irqrestore(&h
->lock
, flags
);
1085 static inline int device_is_the_same(struct hpsa_scsi_dev_t
*dev1
,
1086 struct hpsa_scsi_dev_t
*dev2
)
1088 /* we compare everything except lun and target as these
1089 * are not yet assigned. Compare parts likely
1092 if (memcmp(dev1
->scsi3addr
, dev2
->scsi3addr
,
1093 sizeof(dev1
->scsi3addr
)) != 0)
1095 if (memcmp(dev1
->device_id
, dev2
->device_id
,
1096 sizeof(dev1
->device_id
)) != 0)
1098 if (memcmp(dev1
->model
, dev2
->model
, sizeof(dev1
->model
)) != 0)
1100 if (memcmp(dev1
->vendor
, dev2
->vendor
, sizeof(dev1
->vendor
)) != 0)
1102 if (dev1
->devtype
!= dev2
->devtype
)
1104 if (dev1
->bus
!= dev2
->bus
)
1109 static inline int device_updated(struct hpsa_scsi_dev_t
*dev1
,
1110 struct hpsa_scsi_dev_t
*dev2
)
1112 /* Device attributes that can change, but don't mean
1113 * that the device is a different device, nor that the OS
1114 * needs to be told anything about the change.
1116 if (dev1
->raid_level
!= dev2
->raid_level
)
1118 if (dev1
->offload_config
!= dev2
->offload_config
)
1120 if (dev1
->offload_enabled
!= dev2
->offload_enabled
)
1125 /* Find needle in haystack. If exact match found, return DEVICE_SAME,
1126 * and return needle location in *index. If scsi3addr matches, but not
1127 * vendor, model, serial num, etc. return DEVICE_CHANGED, and return needle
1128 * location in *index.
1129 * In the case of a minor device attribute change, such as RAID level, just
1130 * return DEVICE_UPDATED, along with the updated device's location in index.
1131 * If needle not found, return DEVICE_NOT_FOUND.
1133 static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t
*needle
,
1134 struct hpsa_scsi_dev_t
*haystack
[], int haystack_size
,
1138 #define DEVICE_NOT_FOUND 0
1139 #define DEVICE_CHANGED 1
1140 #define DEVICE_SAME 2
1141 #define DEVICE_UPDATED 3
1142 for (i
= 0; i
< haystack_size
; i
++) {
1143 if (haystack
[i
] == NULL
) /* previously removed. */
1145 if (SCSI3ADDR_EQ(needle
->scsi3addr
, haystack
[i
]->scsi3addr
)) {
1147 if (device_is_the_same(needle
, haystack
[i
])) {
1148 if (device_updated(needle
, haystack
[i
]))
1149 return DEVICE_UPDATED
;
1152 /* Keep offline devices offline */
1153 if (needle
->volume_offline
)
1154 return DEVICE_NOT_FOUND
;
1155 return DEVICE_CHANGED
;
1160 return DEVICE_NOT_FOUND
;
1163 static void hpsa_monitor_offline_device(struct ctlr_info
*h
,
1164 unsigned char scsi3addr
[])
1166 struct offline_device_entry
*device
;
1167 unsigned long flags
;
1169 /* Check to see if device is already on the list */
1170 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
1171 list_for_each_entry(device
, &h
->offline_device_list
, offline_list
) {
1172 if (memcmp(device
->scsi3addr
, scsi3addr
,
1173 sizeof(device
->scsi3addr
)) == 0) {
1174 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1178 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1180 /* Device is not on the list, add it. */
1181 device
= kmalloc(sizeof(*device
), GFP_KERNEL
);
1183 dev_warn(&h
->pdev
->dev
, "out of memory in %s\n", __func__
);
1186 memcpy(device
->scsi3addr
, scsi3addr
, sizeof(device
->scsi3addr
));
1187 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
1188 list_add_tail(&device
->offline_list
, &h
->offline_device_list
);
1189 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1192 /* Print a message explaining various offline volume states */
1193 static void hpsa_show_volume_status(struct ctlr_info
*h
,
1194 struct hpsa_scsi_dev_t
*sd
)
1196 if (sd
->volume_offline
== HPSA_VPD_LV_STATUS_UNSUPPORTED
)
1197 dev_info(&h
->pdev
->dev
,
1198 "C%d:B%d:T%d:L%d Volume status is not available through vital product data pages.\n",
1199 h
->scsi_host
->host_no
,
1200 sd
->bus
, sd
->target
, sd
->lun
);
1201 switch (sd
->volume_offline
) {
1204 case HPSA_LV_UNDERGOING_ERASE
:
1205 dev_info(&h
->pdev
->dev
,
1206 "C%d:B%d:T%d:L%d Volume is undergoing background erase process.\n",
1207 h
->scsi_host
->host_no
,
1208 sd
->bus
, sd
->target
, sd
->lun
);
1210 case HPSA_LV_UNDERGOING_RPI
:
1211 dev_info(&h
->pdev
->dev
,
1212 "C%d:B%d:T%d:L%d Volume is undergoing rapid parity initialization process.\n",
1213 h
->scsi_host
->host_no
,
1214 sd
->bus
, sd
->target
, sd
->lun
);
1216 case HPSA_LV_PENDING_RPI
:
1217 dev_info(&h
->pdev
->dev
,
1218 "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n",
1219 h
->scsi_host
->host_no
,
1220 sd
->bus
, sd
->target
, sd
->lun
);
1222 case HPSA_LV_ENCRYPTED_NO_KEY
:
1223 dev_info(&h
->pdev
->dev
,
1224 "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because key is not present.\n",
1225 h
->scsi_host
->host_no
,
1226 sd
->bus
, sd
->target
, sd
->lun
);
1228 case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER
:
1229 dev_info(&h
->pdev
->dev
,
1230 "C%d:B%d:T%d:L%d Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.\n",
1231 h
->scsi_host
->host_no
,
1232 sd
->bus
, sd
->target
, sd
->lun
);
1234 case HPSA_LV_UNDERGOING_ENCRYPTION
:
1235 dev_info(&h
->pdev
->dev
,
1236 "C%d:B%d:T%d:L%d Volume is undergoing encryption process.\n",
1237 h
->scsi_host
->host_no
,
1238 sd
->bus
, sd
->target
, sd
->lun
);
1240 case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING
:
1241 dev_info(&h
->pdev
->dev
,
1242 "C%d:B%d:T%d:L%d Volume is undergoing encryption re-keying process.\n",
1243 h
->scsi_host
->host_no
,
1244 sd
->bus
, sd
->target
, sd
->lun
);
1246 case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER
:
1247 dev_info(&h
->pdev
->dev
,
1248 "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because controller does not have encryption enabled.\n",
1249 h
->scsi_host
->host_no
,
1250 sd
->bus
, sd
->target
, sd
->lun
);
1252 case HPSA_LV_PENDING_ENCRYPTION
:
1253 dev_info(&h
->pdev
->dev
,
1254 "C%d:B%d:T%d:L%d Volume is pending migration to encrypted state, but process has not started.\n",
1255 h
->scsi_host
->host_no
,
1256 sd
->bus
, sd
->target
, sd
->lun
);
1258 case HPSA_LV_PENDING_ENCRYPTION_REKEYING
:
1259 dev_info(&h
->pdev
->dev
,
1260 "C%d:B%d:T%d:L%d Volume is encrypted and is pending encryption rekeying.\n",
1261 h
->scsi_host
->host_no
,
1262 sd
->bus
, sd
->target
, sd
->lun
);
1267 static void adjust_hpsa_scsi_table(struct ctlr_info
*h
, int hostno
,
1268 struct hpsa_scsi_dev_t
*sd
[], int nsds
)
1270 /* sd contains scsi3 addresses and devtypes, and inquiry
1271 * data. This function takes what's in sd to be the current
1272 * reality and updates h->dev[] to reflect that reality.
1274 int i
, entry
, device_change
, changes
= 0;
1275 struct hpsa_scsi_dev_t
*csd
;
1276 unsigned long flags
;
1277 struct hpsa_scsi_dev_t
**added
, **removed
;
1278 int nadded
, nremoved
;
1279 struct Scsi_Host
*sh
= NULL
;
1281 added
= kzalloc(sizeof(*added
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
1282 removed
= kzalloc(sizeof(*removed
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
1284 if (!added
|| !removed
) {
1285 dev_warn(&h
->pdev
->dev
, "out of memory in "
1286 "adjust_hpsa_scsi_table\n");
1290 spin_lock_irqsave(&h
->devlock
, flags
);
1292 /* find any devices in h->dev[] that are not in
1293 * sd[] and remove them from h->dev[], and for any
1294 * devices which have changed, remove the old device
1295 * info and add the new device info.
1296 * If minor device attributes change, just update
1297 * the existing device structure.
1302 while (i
< h
->ndevices
) {
1304 device_change
= hpsa_scsi_find_entry(csd
, sd
, nsds
, &entry
);
1305 if (device_change
== DEVICE_NOT_FOUND
) {
1307 hpsa_scsi_remove_entry(h
, hostno
, i
,
1308 removed
, &nremoved
);
1309 continue; /* remove ^^^, hence i not incremented */
1310 } else if (device_change
== DEVICE_CHANGED
) {
1312 hpsa_scsi_replace_entry(h
, hostno
, i
, sd
[entry
],
1313 added
, &nadded
, removed
, &nremoved
);
1314 /* Set it to NULL to prevent it from being freed
1315 * at the bottom of hpsa_update_scsi_devices()
1318 } else if (device_change
== DEVICE_UPDATED
) {
1319 hpsa_scsi_update_entry(h
, hostno
, i
, sd
[entry
]);
1324 /* Now, make sure every device listed in sd[] is also
1325 * listed in h->dev[], adding them if they aren't found
1328 for (i
= 0; i
< nsds
; i
++) {
1329 if (!sd
[i
]) /* if already added above. */
1332 /* Don't add devices which are NOT READY, FORMAT IN PROGRESS
1333 * as the SCSI mid-layer does not handle such devices well.
1334 * It relentlessly loops sending TUR at 3Hz, then READ(10)
1335 * at 160Hz, and prevents the system from coming up.
1337 if (sd
[i
]->volume_offline
) {
1338 hpsa_show_volume_status(h
, sd
[i
]);
1339 dev_info(&h
->pdev
->dev
, "c%db%dt%dl%d: temporarily offline\n",
1340 h
->scsi_host
->host_no
,
1341 sd
[i
]->bus
, sd
[i
]->target
, sd
[i
]->lun
);
1345 device_change
= hpsa_scsi_find_entry(sd
[i
], h
->dev
,
1346 h
->ndevices
, &entry
);
1347 if (device_change
== DEVICE_NOT_FOUND
) {
1349 if (hpsa_scsi_add_entry(h
, hostno
, sd
[i
],
1350 added
, &nadded
) != 0)
1352 sd
[i
] = NULL
; /* prevent from being freed later. */
1353 } else if (device_change
== DEVICE_CHANGED
) {
1354 /* should never happen... */
1356 dev_warn(&h
->pdev
->dev
,
1357 "device unexpectedly changed.\n");
1358 /* but if it does happen, we just ignore that device */
1361 spin_unlock_irqrestore(&h
->devlock
, flags
);
1363 /* Monitor devices which are in one of several NOT READY states to be
1364 * brought online later. This must be done without holding h->devlock,
1365 * so don't touch h->dev[]
1367 for (i
= 0; i
< nsds
; i
++) {
1368 if (!sd
[i
]) /* if already added above. */
1370 if (sd
[i
]->volume_offline
)
1371 hpsa_monitor_offline_device(h
, sd
[i
]->scsi3addr
);
1374 /* Don't notify scsi mid layer of any changes the first time through
1375 * (or if there are no changes) scsi_scan_host will do it later the
1376 * first time through.
1378 if (hostno
== -1 || !changes
)
1382 /* Notify scsi mid layer of any removed devices */
1383 for (i
= 0; i
< nremoved
; i
++) {
1384 struct scsi_device
*sdev
=
1385 scsi_device_lookup(sh
, removed
[i
]->bus
,
1386 removed
[i
]->target
, removed
[i
]->lun
);
1388 scsi_remove_device(sdev
);
1389 scsi_device_put(sdev
);
1391 /* We don't expect to get here.
1392 * future cmds to this device will get selection
1393 * timeout as if the device was gone.
1395 dev_warn(&h
->pdev
->dev
, "didn't find c%db%dt%dl%d "
1396 " for removal.", hostno
, removed
[i
]->bus
,
1397 removed
[i
]->target
, removed
[i
]->lun
);
1403 /* Notify scsi mid layer of any added devices */
1404 for (i
= 0; i
< nadded
; i
++) {
1405 if (scsi_add_device(sh
, added
[i
]->bus
,
1406 added
[i
]->target
, added
[i
]->lun
) == 0)
1408 dev_warn(&h
->pdev
->dev
, "scsi_add_device c%db%dt%dl%d failed, "
1409 "device not added.\n", hostno
, added
[i
]->bus
,
1410 added
[i
]->target
, added
[i
]->lun
);
1411 /* now we have to remove it from h->dev,
1412 * since it didn't get added to scsi mid layer
1414 fixup_botched_add(h
, added
[i
]);
1423 * Lookup bus/target/lun and return corresponding struct hpsa_scsi_dev_t *
1424 * Assume's h->devlock is held.
1426 static struct hpsa_scsi_dev_t
*lookup_hpsa_scsi_dev(struct ctlr_info
*h
,
1427 int bus
, int target
, int lun
)
1430 struct hpsa_scsi_dev_t
*sd
;
1432 for (i
= 0; i
< h
->ndevices
; i
++) {
1434 if (sd
->bus
== bus
&& sd
->target
== target
&& sd
->lun
== lun
)
1440 /* link sdev->hostdata to our per-device structure. */
1441 static int hpsa_slave_alloc(struct scsi_device
*sdev
)
1443 struct hpsa_scsi_dev_t
*sd
;
1444 unsigned long flags
;
1445 struct ctlr_info
*h
;
1447 h
= sdev_to_hba(sdev
);
1448 spin_lock_irqsave(&h
->devlock
, flags
);
1449 sd
= lookup_hpsa_scsi_dev(h
, sdev_channel(sdev
),
1450 sdev_id(sdev
), sdev
->lun
);
1452 sdev
->hostdata
= sd
;
1453 spin_unlock_irqrestore(&h
->devlock
, flags
);
1457 static void hpsa_slave_destroy(struct scsi_device
*sdev
)
1459 /* nothing to do. */
1462 static void hpsa_free_sg_chain_blocks(struct ctlr_info
*h
)
1466 if (!h
->cmd_sg_list
)
1468 for (i
= 0; i
< h
->nr_cmds
; i
++) {
1469 kfree(h
->cmd_sg_list
[i
]);
1470 h
->cmd_sg_list
[i
] = NULL
;
1472 kfree(h
->cmd_sg_list
);
1473 h
->cmd_sg_list
= NULL
;
1476 static int hpsa_allocate_sg_chain_blocks(struct ctlr_info
*h
)
1480 if (h
->chainsize
<= 0)
1483 h
->cmd_sg_list
= kzalloc(sizeof(*h
->cmd_sg_list
) * h
->nr_cmds
,
1485 if (!h
->cmd_sg_list
)
1487 for (i
= 0; i
< h
->nr_cmds
; i
++) {
1488 h
->cmd_sg_list
[i
] = kmalloc(sizeof(*h
->cmd_sg_list
[i
]) *
1489 h
->chainsize
, GFP_KERNEL
);
1490 if (!h
->cmd_sg_list
[i
])
1496 hpsa_free_sg_chain_blocks(h
);
1500 static int hpsa_map_sg_chain_block(struct ctlr_info
*h
,
1501 struct CommandList
*c
)
1503 struct SGDescriptor
*chain_sg
, *chain_block
;
1507 chain_sg
= &c
->SG
[h
->max_cmd_sg_entries
- 1];
1508 chain_block
= h
->cmd_sg_list
[c
->cmdindex
];
1509 chain_sg
->Ext
= cpu_to_le32(HPSA_SG_CHAIN
);
1510 chain_len
= sizeof(*chain_sg
) *
1511 (c
->Header
.SGTotal
- h
->max_cmd_sg_entries
);
1512 chain_sg
->Len
= cpu_to_le32(chain_len
);
1513 temp64
= pci_map_single(h
->pdev
, chain_block
, chain_len
,
1515 if (dma_mapping_error(&h
->pdev
->dev
, temp64
)) {
1516 /* prevent subsequent unmapping */
1517 chain_sg
->Addr
= cpu_to_le64(0);
1520 chain_sg
->Addr
= cpu_to_le64(temp64
);
1524 static void hpsa_unmap_sg_chain_block(struct ctlr_info
*h
,
1525 struct CommandList
*c
)
1527 struct SGDescriptor
*chain_sg
;
1529 if (le16_to_cpu(c
->Header
.SGTotal
) <= h
->max_cmd_sg_entries
)
1532 chain_sg
= &c
->SG
[h
->max_cmd_sg_entries
- 1];
1533 pci_unmap_single(h
->pdev
, le64_to_cpu(chain_sg
->Addr
),
1534 le32_to_cpu(chain_sg
->Len
), PCI_DMA_TODEVICE
);
1538 /* Decode the various types of errors on ioaccel2 path.
1539 * Return 1 for any error that should generate a RAID path retry.
1540 * Return 0 for errors that don't require a RAID path retry.
1542 static int handle_ioaccel_mode2_error(struct ctlr_info
*h
,
1543 struct CommandList
*c
,
1544 struct scsi_cmnd
*cmd
,
1545 struct io_accel2_cmd
*c2
)
1550 switch (c2
->error_data
.serv_response
) {
1551 case IOACCEL2_SERV_RESPONSE_COMPLETE
:
1552 switch (c2
->error_data
.status
) {
1553 case IOACCEL2_STATUS_SR_TASK_COMP_GOOD
:
1555 case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND
:
1556 dev_warn(&h
->pdev
->dev
,
1557 "%s: task complete with check condition.\n",
1558 "HP SSD Smart Path");
1559 cmd
->result
|= SAM_STAT_CHECK_CONDITION
;
1560 if (c2
->error_data
.data_present
!=
1561 IOACCEL2_SENSE_DATA_PRESENT
) {
1562 memset(cmd
->sense_buffer
, 0,
1563 SCSI_SENSE_BUFFERSIZE
);
1566 /* copy the sense data */
1567 data_len
= c2
->error_data
.sense_data_len
;
1568 if (data_len
> SCSI_SENSE_BUFFERSIZE
)
1569 data_len
= SCSI_SENSE_BUFFERSIZE
;
1570 if (data_len
> sizeof(c2
->error_data
.sense_data_buff
))
1572 sizeof(c2
->error_data
.sense_data_buff
);
1573 memcpy(cmd
->sense_buffer
,
1574 c2
->error_data
.sense_data_buff
, data_len
);
1577 case IOACCEL2_STATUS_SR_TASK_COMP_BUSY
:
1578 dev_warn(&h
->pdev
->dev
,
1579 "%s: task complete with BUSY status.\n",
1580 "HP SSD Smart Path");
1583 case IOACCEL2_STATUS_SR_TASK_COMP_RES_CON
:
1584 dev_warn(&h
->pdev
->dev
,
1585 "%s: task complete with reservation conflict.\n",
1586 "HP SSD Smart Path");
1589 case IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL
:
1590 /* Make scsi midlayer do unlimited retries */
1591 cmd
->result
= DID_IMM_RETRY
<< 16;
1593 case IOACCEL2_STATUS_SR_TASK_COMP_ABORTED
:
1594 dev_warn(&h
->pdev
->dev
,
1595 "%s: task complete with aborted status.\n",
1596 "HP SSD Smart Path");
1600 dev_warn(&h
->pdev
->dev
,
1601 "%s: task complete with unrecognized status: 0x%02x\n",
1602 "HP SSD Smart Path", c2
->error_data
.status
);
1607 case IOACCEL2_SERV_RESPONSE_FAILURE
:
1608 /* don't expect to get here. */
1609 dev_warn(&h
->pdev
->dev
,
1610 "unexpected delivery or target failure, status = 0x%02x\n",
1611 c2
->error_data
.status
);
1614 case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE
:
1616 case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS
:
1618 case IOACCEL2_SERV_RESPONSE_TMF_REJECTED
:
1619 dev_warn(&h
->pdev
->dev
, "task management function rejected.\n");
1622 case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN
:
1623 dev_warn(&h
->pdev
->dev
, "task management function invalid LUN\n");
1626 dev_warn(&h
->pdev
->dev
,
1627 "%s: Unrecognized server response: 0x%02x\n",
1628 "HP SSD Smart Path",
1629 c2
->error_data
.serv_response
);
1634 return retry
; /* retry on raid path? */
1637 static void process_ioaccel2_completion(struct ctlr_info
*h
,
1638 struct CommandList
*c
, struct scsi_cmnd
*cmd
,
1639 struct hpsa_scsi_dev_t
*dev
)
1641 struct io_accel2_cmd
*c2
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
1644 /* check for good status */
1645 if (likely(c2
->error_data
.serv_response
== 0 &&
1646 c2
->error_data
.status
== 0)) {
1648 cmd
->scsi_done(cmd
);
1652 /* Any RAID offload error results in retry which will use
1653 * the normal I/O path so the controller can handle whatever's
1656 if (is_logical_dev_addr_mode(dev
->scsi3addr
) &&
1657 c2
->error_data
.serv_response
==
1658 IOACCEL2_SERV_RESPONSE_FAILURE
) {
1659 dev
->offload_enabled
= 0;
1660 h
->drv_req_rescan
= 1; /* schedule controller for a rescan */
1661 cmd
->result
= DID_SOFT_ERROR
<< 16;
1663 cmd
->scsi_done(cmd
);
1666 raid_retry
= handle_ioaccel_mode2_error(h
, c
, cmd
, c2
);
1667 /* If error found, disable Smart Path, schedule a rescan,
1668 * and force a retry on the standard path.
1671 dev_warn(&h
->pdev
->dev
, "%s: Retrying on standard path.\n",
1672 "HP SSD Smart Path");
1673 dev
->offload_enabled
= 0; /* Disable Smart Path */
1674 h
->drv_req_rescan
= 1; /* schedule controller rescan */
1675 cmd
->result
= DID_SOFT_ERROR
<< 16;
1678 cmd
->scsi_done(cmd
);
1681 static void complete_scsi_command(struct CommandList
*cp
)
1683 struct scsi_cmnd
*cmd
;
1684 struct ctlr_info
*h
;
1685 struct ErrorInfo
*ei
;
1686 struct hpsa_scsi_dev_t
*dev
;
1688 unsigned char sense_key
;
1689 unsigned char asc
; /* additional sense code */
1690 unsigned char ascq
; /* additional sense code qualifier */
1691 unsigned long sense_data_size
;
1694 cmd
= (struct scsi_cmnd
*) cp
->scsi_cmd
;
1696 dev
= cmd
->device
->hostdata
;
1698 scsi_dma_unmap(cmd
); /* undo the DMA mappings */
1699 if ((cp
->cmd_type
== CMD_SCSI
) &&
1700 (cp
->Header
.SGTotal
> h
->max_cmd_sg_entries
))
1701 hpsa_unmap_sg_chain_block(h
, cp
);
1703 cmd
->result
= (DID_OK
<< 16); /* host byte */
1704 cmd
->result
|= (COMMAND_COMPLETE
<< 8); /* msg byte */
1706 if (cp
->cmd_type
== CMD_IOACCEL2
)
1707 return process_ioaccel2_completion(h
, cp
, cmd
, dev
);
1709 cmd
->result
|= ei
->ScsiStatus
;
1711 scsi_set_resid(cmd
, ei
->ResidualCnt
);
1712 if (ei
->CommandStatus
== 0) {
1714 cmd
->scsi_done(cmd
);
1718 /* copy the sense data */
1719 if (SCSI_SENSE_BUFFERSIZE
< sizeof(ei
->SenseInfo
))
1720 sense_data_size
= SCSI_SENSE_BUFFERSIZE
;
1722 sense_data_size
= sizeof(ei
->SenseInfo
);
1723 if (ei
->SenseLen
< sense_data_size
)
1724 sense_data_size
= ei
->SenseLen
;
1726 memcpy(cmd
->sense_buffer
, ei
->SenseInfo
, sense_data_size
);
1728 /* For I/O accelerator commands, copy over some fields to the normal
1729 * CISS header used below for error handling.
1731 if (cp
->cmd_type
== CMD_IOACCEL1
) {
1732 struct io_accel1_cmd
*c
= &h
->ioaccel_cmd_pool
[cp
->cmdindex
];
1733 cp
->Header
.SGList
= cp
->Header
.SGTotal
= scsi_sg_count(cmd
);
1734 cp
->Request
.CDBLen
= c
->io_flags
& 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];
1766 if (ei
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
) {
1767 if (check_for_unit_attention(h
, cp
))
1769 if (sense_key
== ILLEGAL_REQUEST
) {
1771 * SCSI REPORT_LUNS is commonly unsupported on
1772 * Smart Array. Suppress noisy complaint.
1774 if (cp
->Request
.CDB
[0] == REPORT_LUNS
)
1777 /* If ASC/ASCQ indicate Logical Unit
1778 * Not Supported condition,
1780 if ((asc
== 0x25) && (ascq
== 0x0)) {
1781 dev_warn(&h
->pdev
->dev
, "cp %p "
1782 "has check condition\n", cp
);
1787 if (sense_key
== NOT_READY
) {
1788 /* If Sense is Not Ready, Logical Unit
1789 * Not ready, Manual Intervention
1792 if ((asc
== 0x04) && (ascq
== 0x03)) {
1793 dev_warn(&h
->pdev
->dev
, "cp %p "
1794 "has check condition: unit "
1795 "not ready, manual "
1796 "intervention required\n", cp
);
1800 if (sense_key
== ABORTED_COMMAND
) {
1801 /* Aborted command is retryable */
1802 dev_warn(&h
->pdev
->dev
, "cp %p "
1803 "has check condition: aborted command: "
1804 "ASC: 0x%x, ASCQ: 0x%x\n",
1806 cmd
->result
|= DID_SOFT_ERROR
<< 16;
1809 /* Must be some other type of check condition */
1810 dev_dbg(&h
->pdev
->dev
, "cp %p has check condition: "
1812 "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
1813 "Returning result: 0x%x, "
1814 "cmd=[%02x %02x %02x %02x %02x "
1815 "%02x %02x %02x %02x %02x %02x "
1816 "%02x %02x %02x %02x %02x]\n",
1817 cp
, sense_key
, asc
, ascq
,
1819 cmd
->cmnd
[0], cmd
->cmnd
[1],
1820 cmd
->cmnd
[2], cmd
->cmnd
[3],
1821 cmd
->cmnd
[4], cmd
->cmnd
[5],
1822 cmd
->cmnd
[6], cmd
->cmnd
[7],
1823 cmd
->cmnd
[8], cmd
->cmnd
[9],
1824 cmd
->cmnd
[10], cmd
->cmnd
[11],
1825 cmd
->cmnd
[12], cmd
->cmnd
[13],
1826 cmd
->cmnd
[14], cmd
->cmnd
[15]);
1831 /* Problem was not a check condition
1832 * Pass it up to the upper layers...
1834 if (ei
->ScsiStatus
) {
1835 dev_warn(&h
->pdev
->dev
, "cp %p has status 0x%x "
1836 "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
1837 "Returning result: 0x%x\n",
1839 sense_key
, asc
, ascq
,
1841 } else { /* scsi status is zero??? How??? */
1842 dev_warn(&h
->pdev
->dev
, "cp %p SCSI status was 0. "
1843 "Returning no connection.\n", cp
),
1845 /* Ordinarily, this case should never happen,
1846 * but there is a bug in some released firmware
1847 * revisions that allows it to happen if, for
1848 * example, a 4100 backplane loses power and
1849 * the tape drive is in it. We assume that
1850 * it's a fatal error of some kind because we
1851 * can't show that it wasn't. We will make it
1852 * look like selection timeout since that is
1853 * the most common reason for this to occur,
1854 * and it's severe enough.
1857 cmd
->result
= DID_NO_CONNECT
<< 16;
1861 case CMD_DATA_UNDERRUN
: /* let mid layer handle it. */
1863 case CMD_DATA_OVERRUN
:
1864 dev_warn(&h
->pdev
->dev
, "cp %p has"
1865 " completed with data overrun "
1869 /* print_bytes(cp, sizeof(*cp), 1, 0);
1871 /* We get CMD_INVALID if you address a non-existent device
1872 * instead of a selection timeout (no response). You will
1873 * see this if you yank out a drive, then try to access it.
1874 * This is kind of a shame because it means that any other
1875 * CMD_INVALID (e.g. driver bug) will get interpreted as a
1876 * missing target. */
1877 cmd
->result
= DID_NO_CONNECT
<< 16;
1880 case CMD_PROTOCOL_ERR
:
1881 cmd
->result
= DID_ERROR
<< 16;
1882 dev_warn(&h
->pdev
->dev
, "cp %p has "
1883 "protocol error\n", cp
);
1885 case CMD_HARDWARE_ERR
:
1886 cmd
->result
= DID_ERROR
<< 16;
1887 dev_warn(&h
->pdev
->dev
, "cp %p had hardware error\n", cp
);
1889 case CMD_CONNECTION_LOST
:
1890 cmd
->result
= DID_ERROR
<< 16;
1891 dev_warn(&h
->pdev
->dev
, "cp %p had connection lost\n", cp
);
1894 cmd
->result
= DID_ABORT
<< 16;
1895 dev_warn(&h
->pdev
->dev
, "cp %p was aborted with status 0x%x\n",
1896 cp
, ei
->ScsiStatus
);
1898 case CMD_ABORT_FAILED
:
1899 cmd
->result
= DID_ERROR
<< 16;
1900 dev_warn(&h
->pdev
->dev
, "cp %p reports abort failed\n", cp
);
1902 case CMD_UNSOLICITED_ABORT
:
1903 cmd
->result
= DID_SOFT_ERROR
<< 16; /* retry the command */
1904 dev_warn(&h
->pdev
->dev
, "cp %p aborted due to an unsolicited "
1908 cmd
->result
= DID_TIME_OUT
<< 16;
1909 dev_warn(&h
->pdev
->dev
, "cp %p timedout\n", cp
);
1911 case CMD_UNABORTABLE
:
1912 cmd
->result
= DID_ERROR
<< 16;
1913 dev_warn(&h
->pdev
->dev
, "Command unabortable\n");
1915 case CMD_IOACCEL_DISABLED
:
1916 /* This only handles the direct pass-through case since RAID
1917 * offload is handled above. Just attempt a retry.
1919 cmd
->result
= DID_SOFT_ERROR
<< 16;
1920 dev_warn(&h
->pdev
->dev
,
1921 "cp %p had HP SSD Smart Path error\n", cp
);
1924 cmd
->result
= DID_ERROR
<< 16;
1925 dev_warn(&h
->pdev
->dev
, "cp %p returned unknown status %x\n",
1926 cp
, ei
->CommandStatus
);
1929 cmd
->scsi_done(cmd
);
1932 static void hpsa_pci_unmap(struct pci_dev
*pdev
,
1933 struct CommandList
*c
, int sg_used
, int data_direction
)
1937 for (i
= 0; i
< sg_used
; i
++)
1938 pci_unmap_single(pdev
, (dma_addr_t
) le64_to_cpu(c
->SG
[i
].Addr
),
1939 le32_to_cpu(c
->SG
[i
].Len
),
1943 static int hpsa_map_one(struct pci_dev
*pdev
,
1944 struct CommandList
*cp
,
1951 if (buflen
== 0 || data_direction
== PCI_DMA_NONE
) {
1952 cp
->Header
.SGList
= 0;
1953 cp
->Header
.SGTotal
= cpu_to_le16(0);
1957 addr64
= pci_map_single(pdev
, buf
, buflen
, data_direction
);
1958 if (dma_mapping_error(&pdev
->dev
, addr64
)) {
1959 /* Prevent subsequent unmap of something never mapped */
1960 cp
->Header
.SGList
= 0;
1961 cp
->Header
.SGTotal
= cpu_to_le16(0);
1964 cp
->SG
[0].Addr
= cpu_to_le64(addr64
);
1965 cp
->SG
[0].Len
= cpu_to_le32(buflen
);
1966 cp
->SG
[0].Ext
= cpu_to_le32(HPSA_SG_LAST
); /* we are not chaining */
1967 cp
->Header
.SGList
= 1; /* no. SGs contig in this cmd */
1968 cp
->Header
.SGTotal
= cpu_to_le16(1); /* total sgs in cmd list */
1972 static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info
*h
,
1973 struct CommandList
*c
)
1975 DECLARE_COMPLETION_ONSTACK(wait
);
1978 enqueue_cmd_and_start_io(h
, c
);
1979 wait_for_completion(&wait
);
1982 static u32
lockup_detected(struct ctlr_info
*h
)
1985 u32 rc
, *lockup_detected
;
1988 lockup_detected
= per_cpu_ptr(h
->lockup_detected
, cpu
);
1989 rc
= *lockup_detected
;
1994 static void hpsa_scsi_do_simple_cmd_core_if_no_lockup(struct ctlr_info
*h
,
1995 struct CommandList
*c
)
1997 /* If controller lockup detected, fake a hardware error. */
1998 if (unlikely(lockup_detected(h
)))
1999 c
->err_info
->CommandStatus
= CMD_HARDWARE_ERR
;
2001 hpsa_scsi_do_simple_cmd_core(h
, c
);
2004 #define MAX_DRIVER_CMD_RETRIES 25
2005 static void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info
*h
,
2006 struct CommandList
*c
, int data_direction
)
2008 int backoff_time
= 10, retry_count
= 0;
2011 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
2012 hpsa_scsi_do_simple_cmd_core(h
, c
);
2014 if (retry_count
> 3) {
2015 msleep(backoff_time
);
2016 if (backoff_time
< 1000)
2019 } while ((check_for_unit_attention(h
, c
) ||
2020 check_for_busy(h
, c
)) &&
2021 retry_count
<= MAX_DRIVER_CMD_RETRIES
);
2022 hpsa_pci_unmap(h
->pdev
, c
, 1, data_direction
);
2025 static void hpsa_print_cmd(struct ctlr_info
*h
, char *txt
,
2026 struct CommandList
*c
)
2028 const u8
*cdb
= c
->Request
.CDB
;
2029 const u8
*lun
= c
->Header
.LUN
.LunAddrBytes
;
2031 dev_warn(&h
->pdev
->dev
, "%s: LUN:%02x%02x%02x%02x%02x%02x%02x%02x"
2032 " CDB:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
2033 txt
, lun
[0], lun
[1], lun
[2], lun
[3],
2034 lun
[4], lun
[5], lun
[6], lun
[7],
2035 cdb
[0], cdb
[1], cdb
[2], cdb
[3],
2036 cdb
[4], cdb
[5], cdb
[6], cdb
[7],
2037 cdb
[8], cdb
[9], cdb
[10], cdb
[11],
2038 cdb
[12], cdb
[13], cdb
[14], cdb
[15]);
2041 static void hpsa_scsi_interpret_error(struct ctlr_info
*h
,
2042 struct CommandList
*cp
)
2044 const struct ErrorInfo
*ei
= cp
->err_info
;
2045 struct device
*d
= &cp
->h
->pdev
->dev
;
2046 const u8
*sd
= ei
->SenseInfo
;
2048 switch (ei
->CommandStatus
) {
2049 case CMD_TARGET_STATUS
:
2050 hpsa_print_cmd(h
, "SCSI status", cp
);
2051 if (ei
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
)
2052 dev_warn(d
, "SCSI Status = 02, Sense key = %02x, ASC = %02x, ASCQ = %02x\n",
2053 sd
[2] & 0x0f, sd
[12], sd
[13]);
2055 dev_warn(d
, "SCSI Status = %02x\n", ei
->ScsiStatus
);
2056 if (ei
->ScsiStatus
== 0)
2057 dev_warn(d
, "SCSI status is abnormally zero. "
2058 "(probably indicates selection timeout "
2059 "reported incorrectly due to a known "
2060 "firmware bug, circa July, 2001.)\n");
2062 case CMD_DATA_UNDERRUN
: /* let mid layer handle it. */
2064 case CMD_DATA_OVERRUN
:
2065 hpsa_print_cmd(h
, "overrun condition", cp
);
2068 /* controller unfortunately reports SCSI passthru's
2069 * to non-existent targets as invalid commands.
2071 hpsa_print_cmd(h
, "invalid command", cp
);
2072 dev_warn(d
, "probably means device no longer present\n");
2075 case CMD_PROTOCOL_ERR
:
2076 hpsa_print_cmd(h
, "protocol error", cp
);
2078 case CMD_HARDWARE_ERR
:
2079 hpsa_print_cmd(h
, "hardware error", cp
);
2081 case CMD_CONNECTION_LOST
:
2082 hpsa_print_cmd(h
, "connection lost", cp
);
2085 hpsa_print_cmd(h
, "aborted", cp
);
2087 case CMD_ABORT_FAILED
:
2088 hpsa_print_cmd(h
, "abort failed", cp
);
2090 case CMD_UNSOLICITED_ABORT
:
2091 hpsa_print_cmd(h
, "unsolicited abort", cp
);
2094 hpsa_print_cmd(h
, "timed out", cp
);
2096 case CMD_UNABORTABLE
:
2097 hpsa_print_cmd(h
, "unabortable", cp
);
2100 hpsa_print_cmd(h
, "unknown status", cp
);
2101 dev_warn(d
, "Unknown command status %x\n",
2106 static int hpsa_scsi_do_inquiry(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2107 u16 page
, unsigned char *buf
,
2108 unsigned char bufsize
)
2111 struct CommandList
*c
;
2112 struct ErrorInfo
*ei
;
2114 c
= cmd_special_alloc(h
);
2116 if (c
== NULL
) { /* trouble... */
2117 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2121 if (fill_cmd(c
, HPSA_INQUIRY
, h
, buf
, bufsize
,
2122 page
, scsi3addr
, TYPE_CMD
)) {
2126 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2128 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2129 hpsa_scsi_interpret_error(h
, c
);
2133 cmd_special_free(h
, c
);
2137 static int hpsa_bmic_ctrl_mode_sense(struct ctlr_info
*h
,
2138 unsigned char *scsi3addr
, unsigned char page
,
2139 struct bmic_controller_parameters
*buf
, size_t bufsize
)
2142 struct CommandList
*c
;
2143 struct ErrorInfo
*ei
;
2145 c
= cmd_special_alloc(h
);
2147 if (c
== NULL
) { /* trouble... */
2148 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2152 if (fill_cmd(c
, BMIC_SENSE_CONTROLLER_PARAMETERS
, h
, buf
, bufsize
,
2153 page
, scsi3addr
, TYPE_CMD
)) {
2157 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2159 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2160 hpsa_scsi_interpret_error(h
, c
);
2164 cmd_special_free(h
, c
);
2168 static int hpsa_send_reset(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2172 struct CommandList
*c
;
2173 struct ErrorInfo
*ei
;
2175 c
= cmd_special_alloc(h
);
2177 if (c
== NULL
) { /* trouble... */
2178 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2182 /* fill_cmd can't fail here, no data buffer to map. */
2183 (void) fill_cmd(c
, HPSA_DEVICE_RESET_MSG
, h
, NULL
, 0, 0,
2184 scsi3addr
, TYPE_MSG
);
2185 c
->Request
.CDB
[1] = reset_type
; /* fill_cmd defaults to LUN reset */
2186 hpsa_scsi_do_simple_cmd_core(h
, c
);
2187 /* no unmap needed here because no data xfer. */
2190 if (ei
->CommandStatus
!= 0) {
2191 hpsa_scsi_interpret_error(h
, c
);
2194 cmd_special_free(h
, c
);
2198 static void hpsa_get_raid_level(struct ctlr_info
*h
,
2199 unsigned char *scsi3addr
, unsigned char *raid_level
)
2204 *raid_level
= RAID_UNKNOWN
;
2205 buf
= kzalloc(64, GFP_KERNEL
);
2208 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| 0xC1, buf
, 64);
2210 *raid_level
= buf
[8];
2211 if (*raid_level
> RAID_UNKNOWN
)
2212 *raid_level
= RAID_UNKNOWN
;
2217 #define HPSA_MAP_DEBUG
2218 #ifdef HPSA_MAP_DEBUG
2219 static void hpsa_debug_map_buff(struct ctlr_info
*h
, int rc
,
2220 struct raid_map_data
*map_buff
)
2222 struct raid_map_disk_data
*dd
= &map_buff
->data
[0];
2224 u16 map_cnt
, row_cnt
, disks_per_row
;
2229 /* Show details only if debugging has been activated. */
2230 if (h
->raid_offload_debug
< 2)
2233 dev_info(&h
->pdev
->dev
, "structure_size = %u\n",
2234 le32_to_cpu(map_buff
->structure_size
));
2235 dev_info(&h
->pdev
->dev
, "volume_blk_size = %u\n",
2236 le32_to_cpu(map_buff
->volume_blk_size
));
2237 dev_info(&h
->pdev
->dev
, "volume_blk_cnt = 0x%llx\n",
2238 le64_to_cpu(map_buff
->volume_blk_cnt
));
2239 dev_info(&h
->pdev
->dev
, "physicalBlockShift = %u\n",
2240 map_buff
->phys_blk_shift
);
2241 dev_info(&h
->pdev
->dev
, "parity_rotation_shift = %u\n",
2242 map_buff
->parity_rotation_shift
);
2243 dev_info(&h
->pdev
->dev
, "strip_size = %u\n",
2244 le16_to_cpu(map_buff
->strip_size
));
2245 dev_info(&h
->pdev
->dev
, "disk_starting_blk = 0x%llx\n",
2246 le64_to_cpu(map_buff
->disk_starting_blk
));
2247 dev_info(&h
->pdev
->dev
, "disk_blk_cnt = 0x%llx\n",
2248 le64_to_cpu(map_buff
->disk_blk_cnt
));
2249 dev_info(&h
->pdev
->dev
, "data_disks_per_row = %u\n",
2250 le16_to_cpu(map_buff
->data_disks_per_row
));
2251 dev_info(&h
->pdev
->dev
, "metadata_disks_per_row = %u\n",
2252 le16_to_cpu(map_buff
->metadata_disks_per_row
));
2253 dev_info(&h
->pdev
->dev
, "row_cnt = %u\n",
2254 le16_to_cpu(map_buff
->row_cnt
));
2255 dev_info(&h
->pdev
->dev
, "layout_map_count = %u\n",
2256 le16_to_cpu(map_buff
->layout_map_count
));
2257 dev_info(&h
->pdev
->dev
, "flags = %u\n",
2258 le16_to_cpu(map_buff
->flags
));
2259 if (map_buff
->flags
& RAID_MAP_FLAG_ENCRYPT_ON
)
2260 dev_info(&h
->pdev
->dev
, "encrypytion = ON\n");
2262 dev_info(&h
->pdev
->dev
, "encrypytion = OFF\n");
2263 dev_info(&h
->pdev
->dev
, "dekindex = %u\n",
2264 le16_to_cpu(map_buff
->dekindex
));
2266 map_cnt
= le16_to_cpu(map_buff
->layout_map_count
);
2267 for (map
= 0; map
< map_cnt
; map
++) {
2268 dev_info(&h
->pdev
->dev
, "Map%u:\n", map
);
2269 row_cnt
= le16_to_cpu(map_buff
->row_cnt
);
2270 for (row
= 0; row
< row_cnt
; row
++) {
2271 dev_info(&h
->pdev
->dev
, " Row%u:\n", row
);
2273 le16_to_cpu(map_buff
->data_disks_per_row
);
2274 for (col
= 0; col
< disks_per_row
; col
++, dd
++)
2275 dev_info(&h
->pdev
->dev
,
2276 " D%02u: h=0x%04x xor=%u,%u\n",
2277 col
, dd
->ioaccel_handle
,
2278 dd
->xor_mult
[0], dd
->xor_mult
[1]);
2280 le16_to_cpu(map_buff
->metadata_disks_per_row
);
2281 for (col
= 0; col
< disks_per_row
; col
++, dd
++)
2282 dev_info(&h
->pdev
->dev
,
2283 " M%02u: h=0x%04x xor=%u,%u\n",
2284 col
, dd
->ioaccel_handle
,
2285 dd
->xor_mult
[0], dd
->xor_mult
[1]);
2290 static void hpsa_debug_map_buff(__attribute__((unused
)) struct ctlr_info
*h
,
2291 __attribute__((unused
)) int rc
,
2292 __attribute__((unused
)) struct raid_map_data
*map_buff
)
2297 static int hpsa_get_raid_map(struct ctlr_info
*h
,
2298 unsigned char *scsi3addr
, struct hpsa_scsi_dev_t
*this_device
)
2301 struct CommandList
*c
;
2302 struct ErrorInfo
*ei
;
2304 c
= cmd_special_alloc(h
);
2306 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2309 if (fill_cmd(c
, HPSA_GET_RAID_MAP
, h
, &this_device
->raid_map
,
2310 sizeof(this_device
->raid_map
), 0,
2311 scsi3addr
, TYPE_CMD
)) {
2312 dev_warn(&h
->pdev
->dev
, "Out of memory in hpsa_get_raid_map()\n");
2313 cmd_special_free(h
, c
);
2316 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2318 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2319 hpsa_scsi_interpret_error(h
, c
);
2320 cmd_special_free(h
, c
);
2323 cmd_special_free(h
, c
);
2325 /* @todo in the future, dynamically allocate RAID map memory */
2326 if (le32_to_cpu(this_device
->raid_map
.structure_size
) >
2327 sizeof(this_device
->raid_map
)) {
2328 dev_warn(&h
->pdev
->dev
, "RAID map size is too large!\n");
2331 hpsa_debug_map_buff(h
, rc
, &this_device
->raid_map
);
2335 static int hpsa_vpd_page_supported(struct ctlr_info
*h
,
2336 unsigned char scsi3addr
[], u8 page
)
2341 unsigned char *buf
, bufsize
;
2343 buf
= kzalloc(256, GFP_KERNEL
);
2347 /* Get the size of the page list first */
2348 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2349 VPD_PAGE
| HPSA_VPD_SUPPORTED_PAGES
,
2350 buf
, HPSA_VPD_HEADER_SZ
);
2352 goto exit_unsupported
;
2354 if ((pages
+ HPSA_VPD_HEADER_SZ
) <= 255)
2355 bufsize
= pages
+ HPSA_VPD_HEADER_SZ
;
2359 /* Get the whole VPD page list */
2360 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2361 VPD_PAGE
| HPSA_VPD_SUPPORTED_PAGES
,
2364 goto exit_unsupported
;
2367 for (i
= 1; i
<= pages
; i
++)
2368 if (buf
[3 + i
] == page
)
2369 goto exit_supported
;
2378 static void hpsa_get_ioaccel_status(struct ctlr_info
*h
,
2379 unsigned char *scsi3addr
, struct hpsa_scsi_dev_t
*this_device
)
2385 this_device
->offload_config
= 0;
2386 this_device
->offload_enabled
= 0;
2388 buf
= kzalloc(64, GFP_KERNEL
);
2391 if (!hpsa_vpd_page_supported(h
, scsi3addr
, HPSA_VPD_LV_IOACCEL_STATUS
))
2393 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2394 VPD_PAGE
| HPSA_VPD_LV_IOACCEL_STATUS
, buf
, 64);
2398 #define IOACCEL_STATUS_BYTE 4
2399 #define OFFLOAD_CONFIGURED_BIT 0x01
2400 #define OFFLOAD_ENABLED_BIT 0x02
2401 ioaccel_status
= buf
[IOACCEL_STATUS_BYTE
];
2402 this_device
->offload_config
=
2403 !!(ioaccel_status
& OFFLOAD_CONFIGURED_BIT
);
2404 if (this_device
->offload_config
) {
2405 this_device
->offload_enabled
=
2406 !!(ioaccel_status
& OFFLOAD_ENABLED_BIT
);
2407 if (hpsa_get_raid_map(h
, scsi3addr
, this_device
))
2408 this_device
->offload_enabled
= 0;
2415 /* Get the device id from inquiry page 0x83 */
2416 static int hpsa_get_device_id(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2417 unsigned char *device_id
, int buflen
)
2424 buf
= kzalloc(64, GFP_KERNEL
);
2427 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| 0x83, buf
, 64);
2429 memcpy(device_id
, &buf
[8], buflen
);
2434 static int hpsa_scsi_do_report_luns(struct ctlr_info
*h
, int logical
,
2435 struct ReportLUNdata
*buf
, int bufsize
,
2436 int extended_response
)
2439 struct CommandList
*c
;
2440 unsigned char scsi3addr
[8];
2441 struct ErrorInfo
*ei
;
2443 c
= cmd_special_alloc(h
);
2444 if (c
== NULL
) { /* trouble... */
2445 dev_err(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2448 /* address the controller */
2449 memset(scsi3addr
, 0, sizeof(scsi3addr
));
2450 if (fill_cmd(c
, logical
? HPSA_REPORT_LOG
: HPSA_REPORT_PHYS
, h
,
2451 buf
, bufsize
, 0, scsi3addr
, TYPE_CMD
)) {
2455 if (extended_response
)
2456 c
->Request
.CDB
[1] = extended_response
;
2457 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2459 if (ei
->CommandStatus
!= 0 &&
2460 ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2461 hpsa_scsi_interpret_error(h
, c
);
2464 if (buf
->extended_response_flag
!= extended_response
) {
2465 dev_err(&h
->pdev
->dev
,
2466 "report luns requested format %u, got %u\n",
2468 buf
->extended_response_flag
);
2473 cmd_special_free(h
, c
);
2477 static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info
*h
,
2478 struct ReportLUNdata
*buf
,
2479 int bufsize
, int extended_response
)
2481 return hpsa_scsi_do_report_luns(h
, 0, buf
, bufsize
, extended_response
);
2484 static inline int hpsa_scsi_do_report_log_luns(struct ctlr_info
*h
,
2485 struct ReportLUNdata
*buf
, int bufsize
)
2487 return hpsa_scsi_do_report_luns(h
, 1, buf
, bufsize
, 0);
2490 static inline void hpsa_set_bus_target_lun(struct hpsa_scsi_dev_t
*device
,
2491 int bus
, int target
, int lun
)
2494 device
->target
= target
;
2498 /* Use VPD inquiry to get details of volume status */
2499 static int hpsa_get_volume_status(struct ctlr_info
*h
,
2500 unsigned char scsi3addr
[])
2507 buf
= kzalloc(64, GFP_KERNEL
);
2509 return HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2511 /* Does controller have VPD for logical volume status? */
2512 if (!hpsa_vpd_page_supported(h
, scsi3addr
, HPSA_VPD_LV_STATUS
))
2515 /* Get the size of the VPD return buffer */
2516 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| HPSA_VPD_LV_STATUS
,
2517 buf
, HPSA_VPD_HEADER_SZ
);
2522 /* Now get the whole VPD buffer */
2523 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| HPSA_VPD_LV_STATUS
,
2524 buf
, size
+ HPSA_VPD_HEADER_SZ
);
2527 status
= buf
[4]; /* status byte */
2533 return HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2536 /* Determine offline status of a volume.
2539 * 0xff (offline for unknown reasons)
2540 * # (integer code indicating one of several NOT READY states
2541 * describing why a volume is to be kept offline)
2543 static int hpsa_volume_offline(struct ctlr_info
*h
,
2544 unsigned char scsi3addr
[])
2546 struct CommandList
*c
;
2547 unsigned char *sense
, sense_key
, asc
, ascq
;
2551 #define ASC_LUN_NOT_READY 0x04
2552 #define ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS 0x04
2553 #define ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ 0x02
2558 (void) fill_cmd(c
, TEST_UNIT_READY
, h
, NULL
, 0, 0, scsi3addr
, TYPE_CMD
);
2559 hpsa_scsi_do_simple_cmd_core(h
, c
);
2560 sense
= c
->err_info
->SenseInfo
;
2561 sense_key
= sense
[2];
2564 cmd_status
= c
->err_info
->CommandStatus
;
2565 scsi_status
= c
->err_info
->ScsiStatus
;
2567 /* Is the volume 'not ready'? */
2568 if (cmd_status
!= CMD_TARGET_STATUS
||
2569 scsi_status
!= SAM_STAT_CHECK_CONDITION
||
2570 sense_key
!= NOT_READY
||
2571 asc
!= ASC_LUN_NOT_READY
) {
2575 /* Determine the reason for not ready state */
2576 ldstat
= hpsa_get_volume_status(h
, scsi3addr
);
2578 /* Keep volume offline in certain cases: */
2580 case HPSA_LV_UNDERGOING_ERASE
:
2581 case HPSA_LV_UNDERGOING_RPI
:
2582 case HPSA_LV_PENDING_RPI
:
2583 case HPSA_LV_ENCRYPTED_NO_KEY
:
2584 case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER
:
2585 case HPSA_LV_UNDERGOING_ENCRYPTION
:
2586 case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING
:
2587 case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER
:
2589 case HPSA_VPD_LV_STATUS_UNSUPPORTED
:
2590 /* If VPD status page isn't available,
2591 * use ASC/ASCQ to determine state
2593 if ((ascq
== ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS
) ||
2594 (ascq
== ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ
))
2603 static int hpsa_update_device_info(struct ctlr_info
*h
,
2604 unsigned char scsi3addr
[], struct hpsa_scsi_dev_t
*this_device
,
2605 unsigned char *is_OBDR_device
)
2608 #define OBDR_SIG_OFFSET 43
2609 #define OBDR_TAPE_SIG "$DR-10"
2610 #define OBDR_SIG_LEN (sizeof(OBDR_TAPE_SIG) - 1)
2611 #define OBDR_TAPE_INQ_SIZE (OBDR_SIG_OFFSET + OBDR_SIG_LEN)
2613 unsigned char *inq_buff
;
2614 unsigned char *obdr_sig
;
2616 inq_buff
= kzalloc(OBDR_TAPE_INQ_SIZE
, GFP_KERNEL
);
2620 /* Do an inquiry to the device to see what it is. */
2621 if (hpsa_scsi_do_inquiry(h
, scsi3addr
, 0, inq_buff
,
2622 (unsigned char) OBDR_TAPE_INQ_SIZE
) != 0) {
2623 /* Inquiry failed (msg printed already) */
2624 dev_err(&h
->pdev
->dev
,
2625 "hpsa_update_device_info: inquiry failed\n");
2629 this_device
->devtype
= (inq_buff
[0] & 0x1f);
2630 memcpy(this_device
->scsi3addr
, scsi3addr
, 8);
2631 memcpy(this_device
->vendor
, &inq_buff
[8],
2632 sizeof(this_device
->vendor
));
2633 memcpy(this_device
->model
, &inq_buff
[16],
2634 sizeof(this_device
->model
));
2635 memset(this_device
->device_id
, 0,
2636 sizeof(this_device
->device_id
));
2637 hpsa_get_device_id(h
, scsi3addr
, this_device
->device_id
,
2638 sizeof(this_device
->device_id
));
2640 if (this_device
->devtype
== TYPE_DISK
&&
2641 is_logical_dev_addr_mode(scsi3addr
)) {
2644 hpsa_get_raid_level(h
, scsi3addr
, &this_device
->raid_level
);
2645 if (h
->fw_support
& MISC_FW_RAID_OFFLOAD_BASIC
)
2646 hpsa_get_ioaccel_status(h
, scsi3addr
, this_device
);
2647 volume_offline
= hpsa_volume_offline(h
, scsi3addr
);
2648 if (volume_offline
< 0 || volume_offline
> 0xff)
2649 volume_offline
= HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2650 this_device
->volume_offline
= volume_offline
& 0xff;
2652 this_device
->raid_level
= RAID_UNKNOWN
;
2653 this_device
->offload_config
= 0;
2654 this_device
->offload_enabled
= 0;
2655 this_device
->volume_offline
= 0;
2658 if (is_OBDR_device
) {
2659 /* See if this is a One-Button-Disaster-Recovery device
2660 * by looking for "$DR-10" at offset 43 in inquiry data.
2662 obdr_sig
= &inq_buff
[OBDR_SIG_OFFSET
];
2663 *is_OBDR_device
= (this_device
->devtype
== TYPE_ROM
&&
2664 strncmp(obdr_sig
, OBDR_TAPE_SIG
,
2665 OBDR_SIG_LEN
) == 0);
2676 static unsigned char *ext_target_model
[] = {
2686 static int is_ext_target(struct ctlr_info
*h
, struct hpsa_scsi_dev_t
*device
)
2690 for (i
= 0; ext_target_model
[i
]; i
++)
2691 if (strncmp(device
->model
, ext_target_model
[i
],
2692 strlen(ext_target_model
[i
])) == 0)
2697 /* Helper function to assign bus, target, lun mapping of devices.
2698 * Puts non-external target logical volumes on bus 0, external target logical
2699 * volumes on bus 1, physical devices on bus 2. and the hba on bus 3.
2700 * Logical drive target and lun are assigned at this time, but
2701 * physical device lun and target assignment are deferred (assigned
2702 * in hpsa_find_target_lun, called by hpsa_scsi_add_entry.)
2704 static void figure_bus_target_lun(struct ctlr_info
*h
,
2705 u8
*lunaddrbytes
, struct hpsa_scsi_dev_t
*device
)
2707 u32 lunid
= le32_to_cpu(*((__le32
*) lunaddrbytes
));
2709 if (!is_logical_dev_addr_mode(lunaddrbytes
)) {
2710 /* physical device, target and lun filled in later */
2711 if (is_hba_lunid(lunaddrbytes
))
2712 hpsa_set_bus_target_lun(device
, 3, 0, lunid
& 0x3fff);
2714 /* defer target, lun assignment for physical devices */
2715 hpsa_set_bus_target_lun(device
, 2, -1, -1);
2718 /* It's a logical device */
2719 if (is_ext_target(h
, device
)) {
2720 /* external target way, put logicals on bus 1
2721 * and match target/lun numbers box
2722 * reports, other smart array, bus 0, target 0, match lunid
2724 hpsa_set_bus_target_lun(device
,
2725 1, (lunid
>> 16) & 0x3fff, lunid
& 0x00ff);
2728 hpsa_set_bus_target_lun(device
, 0, 0, lunid
& 0x3fff);
2732 * If there is no lun 0 on a target, linux won't find any devices.
2733 * For the external targets (arrays), we have to manually detect the enclosure
2734 * which is at lun zero, as CCISS_REPORT_PHYSICAL_LUNS doesn't report
2735 * it for some reason. *tmpdevice is the target we're adding,
2736 * this_device is a pointer into the current element of currentsd[]
2737 * that we're building up in update_scsi_devices(), below.
2738 * lunzerobits is a bitmap that tracks which targets already have a
2740 * Returns 1 if an enclosure was added, 0 if not.
2742 static int add_ext_target_dev(struct ctlr_info
*h
,
2743 struct hpsa_scsi_dev_t
*tmpdevice
,
2744 struct hpsa_scsi_dev_t
*this_device
, u8
*lunaddrbytes
,
2745 unsigned long lunzerobits
[], int *n_ext_target_devs
)
2747 unsigned char scsi3addr
[8];
2749 if (test_bit(tmpdevice
->target
, lunzerobits
))
2750 return 0; /* There is already a lun 0 on this target. */
2752 if (!is_logical_dev_addr_mode(lunaddrbytes
))
2753 return 0; /* It's the logical targets that may lack lun 0. */
2755 if (!is_ext_target(h
, tmpdevice
))
2756 return 0; /* Only external target devices have this problem. */
2758 if (tmpdevice
->lun
== 0) /* if lun is 0, then we have a lun 0. */
2761 memset(scsi3addr
, 0, 8);
2762 scsi3addr
[3] = tmpdevice
->target
;
2763 if (is_hba_lunid(scsi3addr
))
2764 return 0; /* Don't add the RAID controller here. */
2766 if (is_scsi_rev_5(h
))
2767 return 0; /* p1210m doesn't need to do this. */
2769 if (*n_ext_target_devs
>= MAX_EXT_TARGETS
) {
2770 dev_warn(&h
->pdev
->dev
, "Maximum number of external "
2771 "target devices exceeded. Check your hardware "
2776 if (hpsa_update_device_info(h
, scsi3addr
, this_device
, NULL
))
2778 (*n_ext_target_devs
)++;
2779 hpsa_set_bus_target_lun(this_device
,
2780 tmpdevice
->bus
, tmpdevice
->target
, 0);
2781 set_bit(tmpdevice
->target
, lunzerobits
);
2786 * Get address of physical disk used for an ioaccel2 mode command:
2787 * 1. Extract ioaccel2 handle from the command.
2788 * 2. Find a matching ioaccel2 handle from list of physical disks.
2790 * 1 and set scsi3addr to address of matching physical
2791 * 0 if no matching physical disk was found.
2793 static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info
*h
,
2794 struct CommandList
*ioaccel2_cmd_to_abort
, unsigned char *scsi3addr
)
2796 struct ReportExtendedLUNdata
*physicals
= NULL
;
2797 int responsesize
= 24; /* size of physical extended response */
2798 int extended
= 2; /* flag forces reporting 'other dev info'. */
2799 int reportsize
= sizeof(*physicals
) + HPSA_MAX_PHYS_LUN
* responsesize
;
2800 u32 nphysicals
= 0; /* number of reported physical devs */
2801 int found
= 0; /* found match (1) or not (0) */
2802 u32 find
; /* handle we need to match */
2804 struct scsi_cmnd
*scmd
; /* scsi command within request being aborted */
2805 struct hpsa_scsi_dev_t
*d
; /* device of request being aborted */
2806 struct io_accel2_cmd
*c2a
; /* ioaccel2 command to abort */
2807 u32 it_nexus
; /* 4 byte device handle for the ioaccel2 cmd */
2808 u32 scsi_nexus
; /* 4 byte device handle for the ioaccel2 cmd */
2810 if (ioaccel2_cmd_to_abort
->cmd_type
!= CMD_IOACCEL2
)
2811 return 0; /* no match */
2813 /* point to the ioaccel2 device handle */
2814 c2a
= &h
->ioaccel2_cmd_pool
[ioaccel2_cmd_to_abort
->cmdindex
];
2816 return 0; /* no match */
2818 scmd
= (struct scsi_cmnd
*) ioaccel2_cmd_to_abort
->scsi_cmd
;
2820 return 0; /* no match */
2822 d
= scmd
->device
->hostdata
;
2824 return 0; /* no match */
2826 it_nexus
= cpu_to_le32(d
->ioaccel_handle
);
2827 scsi_nexus
= cpu_to_le32(c2a
->scsi_nexus
);
2828 find
= c2a
->scsi_nexus
;
2830 if (h
->raid_offload_debug
> 0)
2831 dev_info(&h
->pdev
->dev
,
2832 "%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",
2833 __func__
, scsi_nexus
,
2834 d
->device_id
[0], d
->device_id
[1], d
->device_id
[2],
2835 d
->device_id
[3], d
->device_id
[4], d
->device_id
[5],
2836 d
->device_id
[6], d
->device_id
[7], d
->device_id
[8],
2837 d
->device_id
[9], d
->device_id
[10], d
->device_id
[11],
2838 d
->device_id
[12], d
->device_id
[13], d
->device_id
[14],
2841 /* Get the list of physical devices */
2842 physicals
= kzalloc(reportsize
, GFP_KERNEL
);
2843 if (physicals
== NULL
)
2845 if (hpsa_scsi_do_report_phys_luns(h
, (struct ReportLUNdata
*) physicals
,
2846 reportsize
, extended
)) {
2847 dev_err(&h
->pdev
->dev
,
2848 "Can't lookup %s device handle: report physical LUNs failed.\n",
2849 "HP SSD Smart Path");
2853 nphysicals
= be32_to_cpu(*((__be32
*)physicals
->LUNListLength
)) /
2856 /* find ioaccel2 handle in list of physicals: */
2857 for (i
= 0; i
< nphysicals
; i
++) {
2858 struct ext_report_lun_entry
*entry
= &physicals
->LUN
[i
];
2860 /* handle is in bytes 28-31 of each lun */
2861 if (entry
->ioaccel_handle
!= find
)
2862 continue; /* didn't match */
2864 memcpy(scsi3addr
, entry
->lunid
, 8);
2865 if (h
->raid_offload_debug
> 0)
2866 dev_info(&h
->pdev
->dev
,
2867 "%s: Searched h=0x%08x, Found h=0x%08x, scsiaddr 0x%8phN\n",
2869 entry
->ioaccel_handle
, scsi3addr
);
2870 break; /* found it */
2881 * Do CISS_REPORT_PHYS and CISS_REPORT_LOG. Data is returned in physdev,
2882 * logdev. The number of luns in physdev and logdev are returned in
2883 * *nphysicals and *nlogicals, respectively.
2884 * Returns 0 on success, -1 otherwise.
2886 static int hpsa_gather_lun_info(struct ctlr_info
*h
,
2887 int reportphyslunsize
, int reportloglunsize
,
2888 struct ReportLUNdata
*physdev
, u32
*nphysicals
, int *physical_mode
,
2889 struct ReportLUNdata
*logdev
, u32
*nlogicals
)
2891 int physical_entry_size
= 8;
2895 /* For I/O accelerator mode we need to read physical device handles */
2896 if (h
->transMethod
& CFGTBL_Trans_io_accel1
||
2897 h
->transMethod
& CFGTBL_Trans_io_accel2
) {
2898 *physical_mode
= HPSA_REPORT_PHYS_EXTENDED
;
2899 physical_entry_size
= 24;
2901 if (hpsa_scsi_do_report_phys_luns(h
, physdev
, reportphyslunsize
,
2903 dev_err(&h
->pdev
->dev
, "report physical LUNs failed.\n");
2906 *nphysicals
= be32_to_cpu(*((__be32
*)physdev
->LUNListLength
)) /
2907 physical_entry_size
;
2908 if (*nphysicals
> HPSA_MAX_PHYS_LUN
) {
2909 dev_warn(&h
->pdev
->dev
, "maximum physical LUNs (%d) exceeded."
2910 " %d LUNs ignored.\n", HPSA_MAX_PHYS_LUN
,
2911 *nphysicals
- HPSA_MAX_PHYS_LUN
);
2912 *nphysicals
= HPSA_MAX_PHYS_LUN
;
2914 if (hpsa_scsi_do_report_log_luns(h
, logdev
, reportloglunsize
)) {
2915 dev_err(&h
->pdev
->dev
, "report logical LUNs failed.\n");
2918 *nlogicals
= be32_to_cpu(*((__be32
*) logdev
->LUNListLength
)) / 8;
2919 /* Reject Logicals in excess of our max capability. */
2920 if (*nlogicals
> HPSA_MAX_LUN
) {
2921 dev_warn(&h
->pdev
->dev
,
2922 "maximum logical LUNs (%d) exceeded. "
2923 "%d LUNs ignored.\n", HPSA_MAX_LUN
,
2924 *nlogicals
- HPSA_MAX_LUN
);
2925 *nlogicals
= HPSA_MAX_LUN
;
2927 if (*nlogicals
+ *nphysicals
> HPSA_MAX_PHYS_LUN
) {
2928 dev_warn(&h
->pdev
->dev
,
2929 "maximum logical + physical LUNs (%d) exceeded. "
2930 "%d LUNs ignored.\n", HPSA_MAX_PHYS_LUN
,
2931 *nphysicals
+ *nlogicals
- HPSA_MAX_PHYS_LUN
);
2932 *nlogicals
= HPSA_MAX_PHYS_LUN
- *nphysicals
;
2937 static u8
*figure_lunaddrbytes(struct ctlr_info
*h
, int raid_ctlr_position
,
2938 int i
, int nphysicals
, int nlogicals
,
2939 struct ReportExtendedLUNdata
*physdev_list
,
2940 struct ReportLUNdata
*logdev_list
)
2942 /* Helper function, figure out where the LUN ID info is coming from
2943 * given index i, lists of physical and logical devices, where in
2944 * the list the raid controller is supposed to appear (first or last)
2947 int logicals_start
= nphysicals
+ (raid_ctlr_position
== 0);
2948 int last_device
= nphysicals
+ nlogicals
+ (raid_ctlr_position
== 0);
2950 if (i
== raid_ctlr_position
)
2951 return RAID_CTLR_LUNID
;
2953 if (i
< logicals_start
)
2954 return &physdev_list
->LUN
[i
-
2955 (raid_ctlr_position
== 0)].lunid
[0];
2957 if (i
< last_device
)
2958 return &logdev_list
->LUN
[i
- nphysicals
-
2959 (raid_ctlr_position
== 0)][0];
2964 static int hpsa_hba_mode_enabled(struct ctlr_info
*h
)
2967 int hba_mode_enabled
;
2968 struct bmic_controller_parameters
*ctlr_params
;
2969 ctlr_params
= kzalloc(sizeof(struct bmic_controller_parameters
),
2974 rc
= hpsa_bmic_ctrl_mode_sense(h
, RAID_CTLR_LUNID
, 0, ctlr_params
,
2975 sizeof(struct bmic_controller_parameters
));
2982 ((ctlr_params
->nvram_flags
& HBA_MODE_ENABLED_FLAG
) != 0);
2984 return hba_mode_enabled
;
2987 static void hpsa_update_scsi_devices(struct ctlr_info
*h
, int hostno
)
2989 /* the idea here is we could get notified
2990 * that some devices have changed, so we do a report
2991 * physical luns and report logical luns cmd, and adjust
2992 * our list of devices accordingly.
2994 * The scsi3addr's of devices won't change so long as the
2995 * adapter is not reset. That means we can rescan and
2996 * tell which devices we already know about, vs. new
2997 * devices, vs. disappearing devices.
2999 struct ReportExtendedLUNdata
*physdev_list
= NULL
;
3000 struct ReportLUNdata
*logdev_list
= NULL
;
3003 int physical_mode
= 0;
3004 u32 ndev_allocated
= 0;
3005 struct hpsa_scsi_dev_t
**currentsd
, *this_device
, *tmpdevice
;
3007 int i
, n_ext_target_devs
, ndevs_to_allocate
;
3008 int raid_ctlr_position
;
3009 int rescan_hba_mode
;
3010 DECLARE_BITMAP(lunzerobits
, MAX_EXT_TARGETS
);
3012 currentsd
= kzalloc(sizeof(*currentsd
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
3013 physdev_list
= kzalloc(sizeof(*physdev_list
), GFP_KERNEL
);
3014 logdev_list
= kzalloc(sizeof(*logdev_list
), GFP_KERNEL
);
3015 tmpdevice
= kzalloc(sizeof(*tmpdevice
), GFP_KERNEL
);
3017 if (!currentsd
|| !physdev_list
|| !logdev_list
|| !tmpdevice
) {
3018 dev_err(&h
->pdev
->dev
, "out of memory\n");
3021 memset(lunzerobits
, 0, sizeof(lunzerobits
));
3023 rescan_hba_mode
= hpsa_hba_mode_enabled(h
);
3024 if (rescan_hba_mode
< 0)
3027 if (!h
->hba_mode_enabled
&& rescan_hba_mode
)
3028 dev_warn(&h
->pdev
->dev
, "HBA mode enabled\n");
3029 else if (h
->hba_mode_enabled
&& !rescan_hba_mode
)
3030 dev_warn(&h
->pdev
->dev
, "HBA mode disabled\n");
3032 h
->hba_mode_enabled
= rescan_hba_mode
;
3034 if (hpsa_gather_lun_info(h
,
3035 sizeof(*physdev_list
), sizeof(*logdev_list
),
3036 (struct ReportLUNdata
*) physdev_list
, &nphysicals
,
3037 &physical_mode
, logdev_list
, &nlogicals
))
3040 /* We might see up to the maximum number of logical and physical disks
3041 * plus external target devices, and a device for the local RAID
3044 ndevs_to_allocate
= nphysicals
+ nlogicals
+ MAX_EXT_TARGETS
+ 1;
3046 /* Allocate the per device structures */
3047 for (i
= 0; i
< ndevs_to_allocate
; i
++) {
3048 if (i
>= HPSA_MAX_DEVICES
) {
3049 dev_warn(&h
->pdev
->dev
, "maximum devices (%d) exceeded."
3050 " %d devices ignored.\n", HPSA_MAX_DEVICES
,
3051 ndevs_to_allocate
- HPSA_MAX_DEVICES
);
3055 currentsd
[i
] = kzalloc(sizeof(*currentsd
[i
]), GFP_KERNEL
);
3056 if (!currentsd
[i
]) {
3057 dev_warn(&h
->pdev
->dev
, "out of memory at %s:%d\n",
3058 __FILE__
, __LINE__
);
3064 if (is_scsi_rev_5(h
))
3065 raid_ctlr_position
= 0;
3067 raid_ctlr_position
= nphysicals
+ nlogicals
;
3069 /* adjust our table of devices */
3070 n_ext_target_devs
= 0;
3071 for (i
= 0; i
< nphysicals
+ nlogicals
+ 1; i
++) {
3072 u8
*lunaddrbytes
, is_OBDR
= 0;
3074 /* Figure out where the LUN ID info is coming from */
3075 lunaddrbytes
= figure_lunaddrbytes(h
, raid_ctlr_position
,
3076 i
, nphysicals
, nlogicals
, physdev_list
, logdev_list
);
3077 /* skip masked physical devices. */
3078 if (lunaddrbytes
[3] & 0xC0 &&
3079 i
< nphysicals
+ (raid_ctlr_position
== 0))
3082 /* Get device type, vendor, model, device id */
3083 if (hpsa_update_device_info(h
, lunaddrbytes
, tmpdevice
,
3085 continue; /* skip it if we can't talk to it. */
3086 figure_bus_target_lun(h
, lunaddrbytes
, tmpdevice
);
3087 this_device
= currentsd
[ncurrent
];
3090 * For external target devices, we have to insert a LUN 0 which
3091 * doesn't show up in CCISS_REPORT_PHYSICAL data, but there
3092 * is nonetheless an enclosure device there. We have to
3093 * present that otherwise linux won't find anything if
3094 * there is no lun 0.
3096 if (add_ext_target_dev(h
, tmpdevice
, this_device
,
3097 lunaddrbytes
, lunzerobits
,
3098 &n_ext_target_devs
)) {
3100 this_device
= currentsd
[ncurrent
];
3103 *this_device
= *tmpdevice
;
3105 switch (this_device
->devtype
) {
3107 /* We don't *really* support actual CD-ROM devices,
3108 * just "One Button Disaster Recovery" tape drive
3109 * which temporarily pretends to be a CD-ROM drive.
3110 * So we check that the device is really an OBDR tape
3111 * device by checking for "$DR-10" in bytes 43-48 of
3118 if (h
->hba_mode_enabled
) {
3119 /* never use raid mapper in HBA mode */
3120 this_device
->offload_enabled
= 0;
3123 } else if (h
->acciopath_status
) {
3124 if (i
>= nphysicals
) {
3134 if (physical_mode
== HPSA_REPORT_PHYS_EXTENDED
) {
3135 memcpy(&this_device
->ioaccel_handle
,
3137 sizeof(this_device
->ioaccel_handle
));
3142 case TYPE_MEDIUM_CHANGER
:
3146 /* Only present the Smartarray HBA as a RAID controller.
3147 * If it's a RAID controller other than the HBA itself
3148 * (an external RAID controller, MSA500 or similar)
3151 if (!is_hba_lunid(lunaddrbytes
))
3158 if (ncurrent
>= HPSA_MAX_DEVICES
)
3161 adjust_hpsa_scsi_table(h
, hostno
, currentsd
, ncurrent
);
3164 for (i
= 0; i
< ndev_allocated
; i
++)
3165 kfree(currentsd
[i
]);
3167 kfree(physdev_list
);
3171 /* hpsa_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci
3172 * dma mapping and fills in the scatter gather entries of the
3175 static int hpsa_scatter_gather(struct ctlr_info
*h
,
3176 struct CommandList
*cp
,
3177 struct scsi_cmnd
*cmd
)
3180 struct scatterlist
*sg
;
3182 int use_sg
, i
, sg_index
, chained
;
3183 struct SGDescriptor
*curr_sg
;
3185 BUG_ON(scsi_sg_count(cmd
) > h
->maxsgentries
);
3187 use_sg
= scsi_dma_map(cmd
);
3192 goto sglist_finished
;
3197 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3198 if (i
== h
->max_cmd_sg_entries
- 1 &&
3199 use_sg
> h
->max_cmd_sg_entries
) {
3201 curr_sg
= h
->cmd_sg_list
[cp
->cmdindex
];
3204 addr64
= (u64
) sg_dma_address(sg
);
3205 len
= sg_dma_len(sg
);
3206 curr_sg
->Addr
= cpu_to_le64(addr64
);
3207 curr_sg
->Len
= cpu_to_le32(len
);
3208 curr_sg
->Ext
= cpu_to_le32(0);
3211 (--curr_sg
)->Ext
= cpu_to_le32(HPSA_SG_LAST
);
3213 if (use_sg
+ chained
> h
->maxSG
)
3214 h
->maxSG
= use_sg
+ chained
;
3217 cp
->Header
.SGList
= h
->max_cmd_sg_entries
;
3218 cp
->Header
.SGTotal
= cpu_to_le16(use_sg
+ 1);
3219 if (hpsa_map_sg_chain_block(h
, cp
)) {
3220 scsi_dma_unmap(cmd
);
3228 cp
->Header
.SGList
= (u8
) use_sg
; /* no. SGs contig in this cmd */
3229 cp
->Header
.SGTotal
= cpu_to_le16(use_sg
); /* total sgs in this cmd list */
3233 #define IO_ACCEL_INELIGIBLE (1)
3234 static int fixup_ioaccel_cdb(u8
*cdb
, int *cdb_len
)
3240 /* Perform some CDB fixups if needed using 10 byte reads/writes only */
3247 if (*cdb_len
== 6) {
3248 block
= (((u32
) cdb
[2]) << 8) | cdb
[3];
3251 BUG_ON(*cdb_len
!= 12);
3252 block
= (((u32
) cdb
[2]) << 24) |
3253 (((u32
) cdb
[3]) << 16) |
3254 (((u32
) cdb
[4]) << 8) |
3257 (((u32
) cdb
[6]) << 24) |
3258 (((u32
) cdb
[7]) << 16) |
3259 (((u32
) cdb
[8]) << 8) |
3262 if (block_cnt
> 0xffff)
3263 return IO_ACCEL_INELIGIBLE
;
3265 cdb
[0] = is_write
? WRITE_10
: READ_10
;
3267 cdb
[2] = (u8
) (block
>> 24);
3268 cdb
[3] = (u8
) (block
>> 16);
3269 cdb
[4] = (u8
) (block
>> 8);
3270 cdb
[5] = (u8
) (block
);
3272 cdb
[7] = (u8
) (block_cnt
>> 8);
3273 cdb
[8] = (u8
) (block_cnt
);
3281 static int hpsa_scsi_ioaccel1_queue_command(struct ctlr_info
*h
,
3282 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3285 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3286 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[c
->cmdindex
];
3288 unsigned int total_len
= 0;
3289 struct scatterlist
*sg
;
3292 struct SGDescriptor
*curr_sg
;
3293 u32 control
= IOACCEL1_CONTROL_SIMPLEQUEUE
;
3295 /* TODO: implement chaining support */
3296 if (scsi_sg_count(cmd
) > h
->ioaccel_maxsg
)
3297 return IO_ACCEL_INELIGIBLE
;
3299 BUG_ON(cmd
->cmd_len
> IOACCEL1_IOFLAGS_CDBLEN_MAX
);
3301 if (fixup_ioaccel_cdb(cdb
, &cdb_len
))
3302 return IO_ACCEL_INELIGIBLE
;
3304 c
->cmd_type
= CMD_IOACCEL1
;
3306 /* Adjust the DMA address to point to the accelerated command buffer */
3307 c
->busaddr
= (u32
) h
->ioaccel_cmd_pool_dhandle
+
3308 (c
->cmdindex
* sizeof(*cp
));
3309 BUG_ON(c
->busaddr
& 0x0000007F);
3311 use_sg
= scsi_dma_map(cmd
);
3317 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3318 addr64
= (u64
) sg_dma_address(sg
);
3319 len
= sg_dma_len(sg
);
3321 curr_sg
->Addr
= cpu_to_le64(addr64
);
3322 curr_sg
->Len
= cpu_to_le32(len
);
3323 curr_sg
->Ext
= cpu_to_le32(0);
3326 (--curr_sg
)->Ext
= cpu_to_le32(HPSA_SG_LAST
);
3328 switch (cmd
->sc_data_direction
) {
3330 control
|= IOACCEL1_CONTROL_DATA_OUT
;
3332 case DMA_FROM_DEVICE
:
3333 control
|= IOACCEL1_CONTROL_DATA_IN
;
3336 control
|= IOACCEL1_CONTROL_NODATAXFER
;
3339 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
3340 cmd
->sc_data_direction
);
3345 control
|= IOACCEL1_CONTROL_NODATAXFER
;
3348 c
->Header
.SGList
= use_sg
;
3349 /* Fill out the command structure to submit */
3350 cp
->dev_handle
= ioaccel_handle
& 0xFFFF;
3351 cp
->transfer_len
= total_len
;
3352 cp
->io_flags
= IOACCEL1_IOFLAGS_IO_REQ
|
3353 (cdb_len
& IOACCEL1_IOFLAGS_CDBLEN_MASK
);
3354 cp
->control
= control
;
3355 memcpy(cp
->CDB
, cdb
, cdb_len
);
3356 memcpy(cp
->CISS_LUN
, scsi3addr
, 8);
3357 /* Tag was already set at init time. */
3358 enqueue_cmd_and_start_io(h
, c
);
3363 * Queue a command directly to a device behind the controller using the
3364 * I/O accelerator path.
3366 static int hpsa_scsi_ioaccel_direct_map(struct ctlr_info
*h
,
3367 struct CommandList
*c
)
3369 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3370 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3372 return hpsa_scsi_ioaccel_queue_command(h
, c
, dev
->ioaccel_handle
,
3373 cmd
->cmnd
, cmd
->cmd_len
, dev
->scsi3addr
);
3377 * Set encryption parameters for the ioaccel2 request
3379 static void set_encrypt_ioaccel2(struct ctlr_info
*h
,
3380 struct CommandList
*c
, struct io_accel2_cmd
*cp
)
3382 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3383 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3384 struct raid_map_data
*map
= &dev
->raid_map
;
3387 BUG_ON(!(dev
->offload_config
&& dev
->offload_enabled
));
3389 /* Are we doing encryption on this device */
3390 if (!(map
->flags
& RAID_MAP_FLAG_ENCRYPT_ON
))
3392 /* Set the data encryption key index. */
3393 cp
->dekindex
= map
->dekindex
;
3395 /* Set the encryption enable flag, encoded into direction field. */
3396 cp
->direction
|= IOACCEL2_DIRECTION_ENCRYPT_MASK
;
3398 /* Set encryption tweak values based on logical block address
3399 * If block size is 512, tweak value is LBA.
3400 * For other block sizes, tweak is (LBA * block size)/ 512)
3402 switch (cmd
->cmnd
[0]) {
3403 /* Required? 6-byte cdbs eliminated by fixup_ioaccel_cdb */
3406 if (map
->volume_blk_size
== 512) {
3408 (((u32
) cmd
->cmnd
[2]) << 8) |
3410 cp
->tweak_upper
= 0;
3413 (((u64
) cmd
->cmnd
[2]) << 8) |
3415 first_block
= (first_block
* map
->volume_blk_size
)/512;
3416 cp
->tweak_lower
= (u32
)first_block
;
3417 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3422 if (map
->volume_blk_size
== 512) {
3424 (((u32
) cmd
->cmnd
[2]) << 24) |
3425 (((u32
) cmd
->cmnd
[3]) << 16) |
3426 (((u32
) cmd
->cmnd
[4]) << 8) |
3428 cp
->tweak_upper
= 0;
3431 (((u64
) cmd
->cmnd
[2]) << 24) |
3432 (((u64
) cmd
->cmnd
[3]) << 16) |
3433 (((u64
) cmd
->cmnd
[4]) << 8) |
3435 first_block
= (first_block
* map
->volume_blk_size
)/512;
3436 cp
->tweak_lower
= (u32
)first_block
;
3437 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3440 /* Required? 12-byte cdbs eliminated by fixup_ioaccel_cdb */
3443 if (map
->volume_blk_size
== 512) {
3445 (((u32
) cmd
->cmnd
[2]) << 24) |
3446 (((u32
) cmd
->cmnd
[3]) << 16) |
3447 (((u32
) cmd
->cmnd
[4]) << 8) |
3449 cp
->tweak_upper
= 0;
3452 (((u64
) cmd
->cmnd
[2]) << 24) |
3453 (((u64
) cmd
->cmnd
[3]) << 16) |
3454 (((u64
) cmd
->cmnd
[4]) << 8) |
3456 first_block
= (first_block
* map
->volume_blk_size
)/512;
3457 cp
->tweak_lower
= (u32
)first_block
;
3458 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3463 if (map
->volume_blk_size
== 512) {
3465 (((u32
) cmd
->cmnd
[6]) << 24) |
3466 (((u32
) cmd
->cmnd
[7]) << 16) |
3467 (((u32
) cmd
->cmnd
[8]) << 8) |
3470 (((u32
) cmd
->cmnd
[2]) << 24) |
3471 (((u32
) cmd
->cmnd
[3]) << 16) |
3472 (((u32
) cmd
->cmnd
[4]) << 8) |
3476 (((u64
) cmd
->cmnd
[2]) << 56) |
3477 (((u64
) cmd
->cmnd
[3]) << 48) |
3478 (((u64
) cmd
->cmnd
[4]) << 40) |
3479 (((u64
) cmd
->cmnd
[5]) << 32) |
3480 (((u64
) cmd
->cmnd
[6]) << 24) |
3481 (((u64
) cmd
->cmnd
[7]) << 16) |
3482 (((u64
) cmd
->cmnd
[8]) << 8) |
3484 first_block
= (first_block
* map
->volume_blk_size
)/512;
3485 cp
->tweak_lower
= (u32
)first_block
;
3486 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3490 dev_err(&h
->pdev
->dev
,
3491 "ERROR: %s: IOACCEL request CDB size not supported for encryption\n",
3498 static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info
*h
,
3499 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3502 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3503 struct io_accel2_cmd
*cp
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
3504 struct ioaccel2_sg_element
*curr_sg
;
3506 struct scatterlist
*sg
;
3511 if (scsi_sg_count(cmd
) > h
->ioaccel_maxsg
)
3512 return IO_ACCEL_INELIGIBLE
;
3514 if (fixup_ioaccel_cdb(cdb
, &cdb_len
))
3515 return IO_ACCEL_INELIGIBLE
;
3516 c
->cmd_type
= CMD_IOACCEL2
;
3517 /* Adjust the DMA address to point to the accelerated command buffer */
3518 c
->busaddr
= (u32
) h
->ioaccel2_cmd_pool_dhandle
+
3519 (c
->cmdindex
* sizeof(*cp
));
3520 BUG_ON(c
->busaddr
& 0x0000007F);
3522 memset(cp
, 0, sizeof(*cp
));
3523 cp
->IU_type
= IOACCEL2_IU_TYPE
;
3525 use_sg
= scsi_dma_map(cmd
);
3530 BUG_ON(use_sg
> IOACCEL2_MAXSGENTRIES
);
3532 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3533 addr64
= (u64
) sg_dma_address(sg
);
3534 len
= sg_dma_len(sg
);
3536 curr_sg
->address
= cpu_to_le64(addr64
);
3537 curr_sg
->length
= cpu_to_le32(len
);
3538 curr_sg
->reserved
[0] = 0;
3539 curr_sg
->reserved
[1] = 0;
3540 curr_sg
->reserved
[2] = 0;
3541 curr_sg
->chain_indicator
= 0;
3545 switch (cmd
->sc_data_direction
) {
3547 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3548 cp
->direction
|= IOACCEL2_DIR_DATA_OUT
;
3550 case DMA_FROM_DEVICE
:
3551 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3552 cp
->direction
|= IOACCEL2_DIR_DATA_IN
;
3555 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3556 cp
->direction
|= IOACCEL2_DIR_NO_DATA
;
3559 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
3560 cmd
->sc_data_direction
);
3565 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3566 cp
->direction
|= IOACCEL2_DIR_NO_DATA
;
3569 /* Set encryption parameters, if necessary */
3570 set_encrypt_ioaccel2(h
, c
, cp
);
3572 cp
->scsi_nexus
= ioaccel_handle
;
3573 cp
->Tag
= (c
->cmdindex
<< DIRECT_LOOKUP_SHIFT
) |
3575 memcpy(cp
->cdb
, cdb
, sizeof(cp
->cdb
));
3577 /* fill in sg elements */
3578 cp
->sg_count
= (u8
) use_sg
;
3580 cp
->data_len
= cpu_to_le32(total_len
);
3581 cp
->err_ptr
= cpu_to_le64(c
->busaddr
+
3582 offsetof(struct io_accel2_cmd
, error_data
));
3583 cp
->err_len
= cpu_to_le32(sizeof(cp
->error_data
));
3585 enqueue_cmd_and_start_io(h
, c
);
3590 * Queue a command to the correct I/O accelerator path.
3592 static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info
*h
,
3593 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3596 if (h
->transMethod
& CFGTBL_Trans_io_accel1
)
3597 return hpsa_scsi_ioaccel1_queue_command(h
, c
, ioaccel_handle
,
3598 cdb
, cdb_len
, scsi3addr
);
3600 return hpsa_scsi_ioaccel2_queue_command(h
, c
, ioaccel_handle
,
3601 cdb
, cdb_len
, scsi3addr
);
3604 static void raid_map_helper(struct raid_map_data
*map
,
3605 int offload_to_mirror
, u32
*map_index
, u32
*current_group
)
3607 if (offload_to_mirror
== 0) {
3608 /* use physical disk in the first mirrored group. */
3609 *map_index
%= map
->data_disks_per_row
;
3613 /* determine mirror group that *map_index indicates */
3614 *current_group
= *map_index
/ map
->data_disks_per_row
;
3615 if (offload_to_mirror
== *current_group
)
3617 if (*current_group
< (map
->layout_map_count
- 1)) {
3618 /* select map index from next group */
3619 *map_index
+= map
->data_disks_per_row
;
3622 /* select map index from first group */
3623 *map_index
%= map
->data_disks_per_row
;
3626 } while (offload_to_mirror
!= *current_group
);
3630 * Attempt to perform offload RAID mapping for a logical volume I/O.
3632 static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info
*h
,
3633 struct CommandList
*c
)
3635 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3636 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3637 struct raid_map_data
*map
= &dev
->raid_map
;
3638 struct raid_map_disk_data
*dd
= &map
->data
[0];
3641 u64 first_block
, last_block
;
3644 u64 first_row
, last_row
;
3645 u32 first_row_offset
, last_row_offset
;
3646 u32 first_column
, last_column
;
3647 u64 r0_first_row
, r0_last_row
;
3648 u32 r5or6_blocks_per_row
;
3649 u64 r5or6_first_row
, r5or6_last_row
;
3650 u32 r5or6_first_row_offset
, r5or6_last_row_offset
;
3651 u32 r5or6_first_column
, r5or6_last_column
;
3652 u32 total_disks_per_row
;
3654 u32 first_group
, last_group
, current_group
;
3661 #if BITS_PER_LONG == 32
3664 int offload_to_mirror
;
3666 BUG_ON(!(dev
->offload_config
&& dev
->offload_enabled
));
3668 /* check for valid opcode, get LBA and block count */
3669 switch (cmd
->cmnd
[0]) {
3674 (((u64
) cmd
->cmnd
[2]) << 8) |
3676 block_cnt
= cmd
->cmnd
[4];
3684 (((u64
) cmd
->cmnd
[2]) << 24) |
3685 (((u64
) cmd
->cmnd
[3]) << 16) |
3686 (((u64
) cmd
->cmnd
[4]) << 8) |
3689 (((u32
) cmd
->cmnd
[7]) << 8) |
3696 (((u64
) cmd
->cmnd
[2]) << 24) |
3697 (((u64
) cmd
->cmnd
[3]) << 16) |
3698 (((u64
) cmd
->cmnd
[4]) << 8) |
3701 (((u32
) cmd
->cmnd
[6]) << 24) |
3702 (((u32
) cmd
->cmnd
[7]) << 16) |
3703 (((u32
) cmd
->cmnd
[8]) << 8) |
3710 (((u64
) cmd
->cmnd
[2]) << 56) |
3711 (((u64
) cmd
->cmnd
[3]) << 48) |
3712 (((u64
) cmd
->cmnd
[4]) << 40) |
3713 (((u64
) cmd
->cmnd
[5]) << 32) |
3714 (((u64
) cmd
->cmnd
[6]) << 24) |
3715 (((u64
) cmd
->cmnd
[7]) << 16) |
3716 (((u64
) cmd
->cmnd
[8]) << 8) |
3719 (((u32
) cmd
->cmnd
[10]) << 24) |
3720 (((u32
) cmd
->cmnd
[11]) << 16) |
3721 (((u32
) cmd
->cmnd
[12]) << 8) |
3725 return IO_ACCEL_INELIGIBLE
; /* process via normal I/O path */
3727 last_block
= first_block
+ block_cnt
- 1;
3729 /* check for write to non-RAID-0 */
3730 if (is_write
&& dev
->raid_level
!= 0)
3731 return IO_ACCEL_INELIGIBLE
;
3733 /* check for invalid block or wraparound */
3734 if (last_block
>= map
->volume_blk_cnt
|| last_block
< first_block
)
3735 return IO_ACCEL_INELIGIBLE
;
3737 /* calculate stripe information for the request */
3738 blocks_per_row
= map
->data_disks_per_row
* map
->strip_size
;
3739 #if BITS_PER_LONG == 32
3740 tmpdiv
= first_block
;
3741 (void) do_div(tmpdiv
, blocks_per_row
);
3743 tmpdiv
= last_block
;
3744 (void) do_div(tmpdiv
, blocks_per_row
);
3746 first_row_offset
= (u32
) (first_block
- (first_row
* blocks_per_row
));
3747 last_row_offset
= (u32
) (last_block
- (last_row
* blocks_per_row
));
3748 tmpdiv
= first_row_offset
;
3749 (void) do_div(tmpdiv
, map
->strip_size
);
3750 first_column
= tmpdiv
;
3751 tmpdiv
= last_row_offset
;
3752 (void) do_div(tmpdiv
, map
->strip_size
);
3753 last_column
= tmpdiv
;
3755 first_row
= first_block
/ blocks_per_row
;
3756 last_row
= last_block
/ blocks_per_row
;
3757 first_row_offset
= (u32
) (first_block
- (first_row
* blocks_per_row
));
3758 last_row_offset
= (u32
) (last_block
- (last_row
* blocks_per_row
));
3759 first_column
= first_row_offset
/ map
->strip_size
;
3760 last_column
= last_row_offset
/ map
->strip_size
;
3763 /* if this isn't a single row/column then give to the controller */
3764 if ((first_row
!= last_row
) || (first_column
!= last_column
))
3765 return IO_ACCEL_INELIGIBLE
;
3767 /* proceeding with driver mapping */
3768 total_disks_per_row
= map
->data_disks_per_row
+
3769 map
->metadata_disks_per_row
;
3770 map_row
= ((u32
)(first_row
>> map
->parity_rotation_shift
)) %
3772 map_index
= (map_row
* total_disks_per_row
) + first_column
;
3774 switch (dev
->raid_level
) {
3776 break; /* nothing special to do */
3778 /* Handles load balance across RAID 1 members.
3779 * (2-drive R1 and R10 with even # of drives.)
3780 * Appropriate for SSDs, not optimal for HDDs
3782 BUG_ON(map
->layout_map_count
!= 2);
3783 if (dev
->offload_to_mirror
)
3784 map_index
+= map
->data_disks_per_row
;
3785 dev
->offload_to_mirror
= !dev
->offload_to_mirror
;
3788 /* Handles N-way mirrors (R1-ADM)
3789 * and R10 with # of drives divisible by 3.)
3791 BUG_ON(map
->layout_map_count
!= 3);
3793 offload_to_mirror
= dev
->offload_to_mirror
;
3794 raid_map_helper(map
, offload_to_mirror
,
3795 &map_index
, ¤t_group
);
3796 /* set mirror group to use next time */
3798 (offload_to_mirror
>= map
->layout_map_count
- 1)
3799 ? 0 : offload_to_mirror
+ 1;
3800 dev
->offload_to_mirror
= offload_to_mirror
;
3801 /* Avoid direct use of dev->offload_to_mirror within this
3802 * function since multiple threads might simultaneously
3803 * increment it beyond the range of dev->layout_map_count -1.
3808 if (map
->layout_map_count
<= 1)
3811 /* Verify first and last block are in same RAID group */
3812 r5or6_blocks_per_row
=
3813 map
->strip_size
* map
->data_disks_per_row
;
3814 BUG_ON(r5or6_blocks_per_row
== 0);
3815 stripesize
= r5or6_blocks_per_row
* map
->layout_map_count
;
3816 #if BITS_PER_LONG == 32
3817 tmpdiv
= first_block
;
3818 first_group
= do_div(tmpdiv
, stripesize
);
3819 tmpdiv
= first_group
;
3820 (void) do_div(tmpdiv
, r5or6_blocks_per_row
);
3821 first_group
= tmpdiv
;
3822 tmpdiv
= last_block
;
3823 last_group
= do_div(tmpdiv
, stripesize
);
3824 tmpdiv
= last_group
;
3825 (void) do_div(tmpdiv
, r5or6_blocks_per_row
);
3826 last_group
= tmpdiv
;
3828 first_group
= (first_block
% stripesize
) / r5or6_blocks_per_row
;
3829 last_group
= (last_block
% stripesize
) / r5or6_blocks_per_row
;
3831 if (first_group
!= last_group
)
3832 return IO_ACCEL_INELIGIBLE
;
3834 /* Verify request is in a single row of RAID 5/6 */
3835 #if BITS_PER_LONG == 32
3836 tmpdiv
= first_block
;
3837 (void) do_div(tmpdiv
, stripesize
);
3838 first_row
= r5or6_first_row
= r0_first_row
= tmpdiv
;
3839 tmpdiv
= last_block
;
3840 (void) do_div(tmpdiv
, stripesize
);
3841 r5or6_last_row
= r0_last_row
= tmpdiv
;
3843 first_row
= r5or6_first_row
= r0_first_row
=
3844 first_block
/ stripesize
;
3845 r5or6_last_row
= r0_last_row
= last_block
/ stripesize
;
3847 if (r5or6_first_row
!= r5or6_last_row
)
3848 return IO_ACCEL_INELIGIBLE
;
3851 /* Verify request is in a single column */
3852 #if BITS_PER_LONG == 32
3853 tmpdiv
= first_block
;
3854 first_row_offset
= do_div(tmpdiv
, stripesize
);
3855 tmpdiv
= first_row_offset
;
3856 first_row_offset
= (u32
) do_div(tmpdiv
, r5or6_blocks_per_row
);
3857 r5or6_first_row_offset
= first_row_offset
;
3858 tmpdiv
= last_block
;
3859 r5or6_last_row_offset
= do_div(tmpdiv
, stripesize
);
3860 tmpdiv
= r5or6_last_row_offset
;
3861 r5or6_last_row_offset
= do_div(tmpdiv
, r5or6_blocks_per_row
);
3862 tmpdiv
= r5or6_first_row_offset
;
3863 (void) do_div(tmpdiv
, map
->strip_size
);
3864 first_column
= r5or6_first_column
= tmpdiv
;
3865 tmpdiv
= r5or6_last_row_offset
;
3866 (void) do_div(tmpdiv
, map
->strip_size
);
3867 r5or6_last_column
= tmpdiv
;
3869 first_row_offset
= r5or6_first_row_offset
=
3870 (u32
)((first_block
% stripesize
) %
3871 r5or6_blocks_per_row
);
3873 r5or6_last_row_offset
=
3874 (u32
)((last_block
% stripesize
) %
3875 r5or6_blocks_per_row
);
3877 first_column
= r5or6_first_column
=
3878 r5or6_first_row_offset
/ map
->strip_size
;
3880 r5or6_last_row_offset
/ map
->strip_size
;
3882 if (r5or6_first_column
!= r5or6_last_column
)
3883 return IO_ACCEL_INELIGIBLE
;
3885 /* Request is eligible */
3886 map_row
= ((u32
)(first_row
>> map
->parity_rotation_shift
)) %
3889 map_index
= (first_group
*
3890 (map
->row_cnt
* total_disks_per_row
)) +
3891 (map_row
* total_disks_per_row
) + first_column
;
3894 return IO_ACCEL_INELIGIBLE
;
3897 disk_handle
= dd
[map_index
].ioaccel_handle
;
3898 disk_block
= map
->disk_starting_blk
+ (first_row
* map
->strip_size
) +
3899 (first_row_offset
- (first_column
* map
->strip_size
));
3900 disk_block_cnt
= block_cnt
;
3902 /* handle differing logical/physical block sizes */
3903 if (map
->phys_blk_shift
) {
3904 disk_block
<<= map
->phys_blk_shift
;
3905 disk_block_cnt
<<= map
->phys_blk_shift
;
3907 BUG_ON(disk_block_cnt
> 0xffff);
3909 /* build the new CDB for the physical disk I/O */
3910 if (disk_block
> 0xffffffff) {
3911 cdb
[0] = is_write
? WRITE_16
: READ_16
;
3913 cdb
[2] = (u8
) (disk_block
>> 56);
3914 cdb
[3] = (u8
) (disk_block
>> 48);
3915 cdb
[4] = (u8
) (disk_block
>> 40);
3916 cdb
[5] = (u8
) (disk_block
>> 32);
3917 cdb
[6] = (u8
) (disk_block
>> 24);
3918 cdb
[7] = (u8
) (disk_block
>> 16);
3919 cdb
[8] = (u8
) (disk_block
>> 8);
3920 cdb
[9] = (u8
) (disk_block
);
3921 cdb
[10] = (u8
) (disk_block_cnt
>> 24);
3922 cdb
[11] = (u8
) (disk_block_cnt
>> 16);
3923 cdb
[12] = (u8
) (disk_block_cnt
>> 8);
3924 cdb
[13] = (u8
) (disk_block_cnt
);
3929 cdb
[0] = is_write
? WRITE_10
: READ_10
;
3931 cdb
[2] = (u8
) (disk_block
>> 24);
3932 cdb
[3] = (u8
) (disk_block
>> 16);
3933 cdb
[4] = (u8
) (disk_block
>> 8);
3934 cdb
[5] = (u8
) (disk_block
);
3936 cdb
[7] = (u8
) (disk_block_cnt
>> 8);
3937 cdb
[8] = (u8
) (disk_block_cnt
);
3941 return hpsa_scsi_ioaccel_queue_command(h
, c
, disk_handle
, cdb
, cdb_len
,
3945 static int hpsa_scsi_queue_command_lck(struct scsi_cmnd
*cmd
,
3946 void (*done
)(struct scsi_cmnd
*))
3948 struct ctlr_info
*h
;
3949 struct hpsa_scsi_dev_t
*dev
;
3950 unsigned char scsi3addr
[8];
3951 struct CommandList
*c
;
3954 /* Get the ptr to our adapter structure out of cmd->host. */
3955 h
= sdev_to_hba(cmd
->device
);
3956 dev
= cmd
->device
->hostdata
;
3958 cmd
->result
= DID_NO_CONNECT
<< 16;
3962 memcpy(scsi3addr
, dev
->scsi3addr
, sizeof(scsi3addr
));
3964 if (unlikely(lockup_detected(h
))) {
3965 cmd
->result
= DID_ERROR
<< 16;
3970 if (c
== NULL
) { /* trouble... */
3971 dev_err(&h
->pdev
->dev
, "cmd_alloc returned NULL!\n");
3972 return SCSI_MLQUEUE_HOST_BUSY
;
3975 /* Fill in the command list header */
3977 cmd
->scsi_done
= done
; /* save this for use by completion code */
3979 /* save c in case we have to abort it */
3980 cmd
->host_scribble
= (unsigned char *) c
;
3982 c
->cmd_type
= CMD_SCSI
;
3985 /* Call alternate submit routine for I/O accelerated commands.
3986 * Retries always go down the normal I/O path.
3988 if (likely(cmd
->retries
== 0 &&
3989 cmd
->request
->cmd_type
== REQ_TYPE_FS
&&
3990 h
->acciopath_status
)) {
3991 if (dev
->offload_enabled
) {
3992 rc
= hpsa_scsi_ioaccel_raid_map(h
, c
);
3994 return 0; /* Sent on ioaccel path */
3995 if (rc
< 0) { /* scsi_dma_map failed. */
3997 return SCSI_MLQUEUE_HOST_BUSY
;
3999 } else if (dev
->ioaccel_handle
) {
4000 rc
= hpsa_scsi_ioaccel_direct_map(h
, c
);
4002 return 0; /* Sent on direct map path */
4003 if (rc
< 0) { /* scsi_dma_map failed. */
4005 return SCSI_MLQUEUE_HOST_BUSY
;
4010 c
->Header
.ReplyQueue
= 0; /* unused in simple mode */
4011 memcpy(&c
->Header
.LUN
.LunAddrBytes
[0], &scsi3addr
[0], 8);
4012 c
->Header
.tag
= cpu_to_le64((c
->cmdindex
<< DIRECT_LOOKUP_SHIFT
) |
4015 /* Fill in the request block... */
4017 c
->Request
.Timeout
= 0;
4018 memset(c
->Request
.CDB
, 0, sizeof(c
->Request
.CDB
));
4019 BUG_ON(cmd
->cmd_len
> sizeof(c
->Request
.CDB
));
4020 c
->Request
.CDBLen
= cmd
->cmd_len
;
4021 memcpy(c
->Request
.CDB
, cmd
->cmnd
, cmd
->cmd_len
);
4022 c
->Request
.Type
.Type
= TYPE_CMD
;
4023 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
4024 switch (cmd
->sc_data_direction
) {
4026 c
->Request
.Type
.Direction
= XFER_WRITE
;
4028 case DMA_FROM_DEVICE
:
4029 c
->Request
.Type
.Direction
= XFER_READ
;
4032 c
->Request
.Type
.Direction
= XFER_NONE
;
4034 case DMA_BIDIRECTIONAL
:
4035 /* This can happen if a buggy application does a scsi passthru
4036 * and sets both inlen and outlen to non-zero. ( see
4037 * ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() )
4040 c
->Request
.Type
.Direction
= XFER_RSVD
;
4041 /* This is technically wrong, and hpsa controllers should
4042 * reject it with CMD_INVALID, which is the most correct
4043 * response, but non-fibre backends appear to let it
4044 * slide by, and give the same results as if this field
4045 * were set correctly. Either way is acceptable for
4046 * our purposes here.
4052 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
4053 cmd
->sc_data_direction
);
4058 if (hpsa_scatter_gather(h
, c
, cmd
) < 0) { /* Fill SG list */
4060 return SCSI_MLQUEUE_HOST_BUSY
;
4062 enqueue_cmd_and_start_io(h
, c
);
4063 /* the cmd'll come back via intr handler in complete_scsi_command() */
4067 static DEF_SCSI_QCMD(hpsa_scsi_queue_command
)
4069 static int do_not_scan_if_controller_locked_up(struct ctlr_info
*h
)
4071 unsigned long flags
;
4074 * Don't let rescans be initiated on a controller known
4075 * to be locked up. If the controller locks up *during*
4076 * a rescan, that thread is probably hosed, but at least
4077 * we can prevent new rescan threads from piling up on a
4078 * locked up controller.
4080 if (unlikely(lockup_detected(h
))) {
4081 spin_lock_irqsave(&h
->scan_lock
, flags
);
4082 h
->scan_finished
= 1;
4083 wake_up_all(&h
->scan_wait_queue
);
4084 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4090 static void hpsa_scan_start(struct Scsi_Host
*sh
)
4092 struct ctlr_info
*h
= shost_to_hba(sh
);
4093 unsigned long flags
;
4095 if (do_not_scan_if_controller_locked_up(h
))
4098 /* wait until any scan already in progress is finished. */
4100 spin_lock_irqsave(&h
->scan_lock
, flags
);
4101 if (h
->scan_finished
)
4103 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4104 wait_event(h
->scan_wait_queue
, h
->scan_finished
);
4105 /* Note: We don't need to worry about a race between this
4106 * thread and driver unload because the midlayer will
4107 * have incremented the reference count, so unload won't
4108 * happen if we're in here.
4111 h
->scan_finished
= 0; /* mark scan as in progress */
4112 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4114 if (do_not_scan_if_controller_locked_up(h
))
4117 hpsa_update_scsi_devices(h
, h
->scsi_host
->host_no
);
4119 spin_lock_irqsave(&h
->scan_lock
, flags
);
4120 h
->scan_finished
= 1; /* mark scan as finished. */
4121 wake_up_all(&h
->scan_wait_queue
);
4122 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4125 static int hpsa_scan_finished(struct Scsi_Host
*sh
,
4126 unsigned long elapsed_time
)
4128 struct ctlr_info
*h
= shost_to_hba(sh
);
4129 unsigned long flags
;
4132 spin_lock_irqsave(&h
->scan_lock
, flags
);
4133 finished
= h
->scan_finished
;
4134 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4138 static int hpsa_change_queue_depth(struct scsi_device
*sdev
,
4139 int qdepth
, int reason
)
4141 struct ctlr_info
*h
= sdev_to_hba(sdev
);
4143 if (reason
!= SCSI_QDEPTH_DEFAULT
)
4149 if (qdepth
> h
->nr_cmds
)
4150 qdepth
= h
->nr_cmds
;
4151 scsi_adjust_queue_depth(sdev
, qdepth
);
4152 return sdev
->queue_depth
;
4155 static void hpsa_unregister_scsi(struct ctlr_info
*h
)
4157 /* we are being forcibly unloaded, and may not refuse. */
4158 scsi_remove_host(h
->scsi_host
);
4159 scsi_host_put(h
->scsi_host
);
4160 h
->scsi_host
= NULL
;
4163 static int hpsa_register_scsi(struct ctlr_info
*h
)
4165 struct Scsi_Host
*sh
;
4168 sh
= scsi_host_alloc(&hpsa_driver_template
, sizeof(h
));
4175 sh
->max_channel
= 3;
4176 sh
->max_cmd_len
= MAX_COMMAND_SIZE
;
4177 sh
->max_lun
= HPSA_MAX_LUN
;
4178 sh
->max_id
= HPSA_MAX_LUN
;
4179 sh
->can_queue
= h
->nr_cmds
;
4180 if (h
->hba_mode_enabled
)
4181 sh
->cmd_per_lun
= 7;
4183 sh
->cmd_per_lun
= h
->nr_cmds
;
4184 sh
->sg_tablesize
= h
->maxsgentries
;
4186 sh
->hostdata
[0] = (unsigned long) h
;
4187 sh
->irq
= h
->intr
[h
->intr_mode
];
4188 sh
->unique_id
= sh
->irq
;
4189 error
= scsi_add_host(sh
, &h
->pdev
->dev
);
4196 dev_err(&h
->pdev
->dev
, "%s: scsi_add_host"
4197 " failed for controller %d\n", __func__
, h
->ctlr
);
4201 dev_err(&h
->pdev
->dev
, "%s: scsi_host_alloc"
4202 " failed for controller %d\n", __func__
, h
->ctlr
);
4206 static int wait_for_device_to_become_ready(struct ctlr_info
*h
,
4207 unsigned char lunaddr
[])
4211 int waittime
= 1; /* seconds */
4212 struct CommandList
*c
;
4214 c
= cmd_special_alloc(h
);
4216 dev_warn(&h
->pdev
->dev
, "out of memory in "
4217 "wait_for_device_to_become_ready.\n");
4221 /* Send test unit ready until device ready, or give up. */
4222 while (count
< HPSA_TUR_RETRY_LIMIT
) {
4224 /* Wait for a bit. do this first, because if we send
4225 * the TUR right away, the reset will just abort it.
4227 msleep(1000 * waittime
);
4229 rc
= 0; /* Device ready. */
4231 /* Increase wait time with each try, up to a point. */
4232 if (waittime
< HPSA_MAX_WAIT_INTERVAL_SECS
)
4233 waittime
= waittime
* 2;
4235 /* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
4236 (void) fill_cmd(c
, TEST_UNIT_READY
, h
,
4237 NULL
, 0, 0, lunaddr
, TYPE_CMD
);
4238 hpsa_scsi_do_simple_cmd_core(h
, c
);
4239 /* no unmap needed here because no data xfer. */
4241 if (c
->err_info
->CommandStatus
== CMD_SUCCESS
)
4244 if (c
->err_info
->CommandStatus
== CMD_TARGET_STATUS
&&
4245 c
->err_info
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
&&
4246 (c
->err_info
->SenseInfo
[2] == NO_SENSE
||
4247 c
->err_info
->SenseInfo
[2] == UNIT_ATTENTION
))
4250 dev_warn(&h
->pdev
->dev
, "waiting %d secs "
4251 "for device to become ready.\n", waittime
);
4252 rc
= 1; /* device not ready. */
4256 dev_warn(&h
->pdev
->dev
, "giving up on device.\n");
4258 dev_warn(&h
->pdev
->dev
, "device is ready.\n");
4260 cmd_special_free(h
, c
);
4264 /* Need at least one of these error handlers to keep ../scsi/hosts.c from
4265 * complaining. Doing a host- or bus-reset can't do anything good here.
4267 static int hpsa_eh_device_reset_handler(struct scsi_cmnd
*scsicmd
)
4270 struct ctlr_info
*h
;
4271 struct hpsa_scsi_dev_t
*dev
;
4273 /* find the controller to which the command to be aborted was sent */
4274 h
= sdev_to_hba(scsicmd
->device
);
4275 if (h
== NULL
) /* paranoia */
4277 dev
= scsicmd
->device
->hostdata
;
4279 dev_err(&h
->pdev
->dev
, "hpsa_eh_device_reset_handler: "
4280 "device lookup failed.\n");
4283 dev_warn(&h
->pdev
->dev
, "resetting device %d:%d:%d:%d\n",
4284 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
);
4285 /* send a reset to the SCSI LUN which the command was sent to */
4286 rc
= hpsa_send_reset(h
, dev
->scsi3addr
, HPSA_RESET_TYPE_LUN
);
4287 if (rc
== 0 && wait_for_device_to_become_ready(h
, dev
->scsi3addr
) == 0)
4290 dev_warn(&h
->pdev
->dev
, "resetting device failed.\n");
4294 static void swizzle_abort_tag(u8
*tag
)
4298 memcpy(original_tag
, tag
, 8);
4299 tag
[0] = original_tag
[3];
4300 tag
[1] = original_tag
[2];
4301 tag
[2] = original_tag
[1];
4302 tag
[3] = original_tag
[0];
4303 tag
[4] = original_tag
[7];
4304 tag
[5] = original_tag
[6];
4305 tag
[6] = original_tag
[5];
4306 tag
[7] = original_tag
[4];
4309 static void hpsa_get_tag(struct ctlr_info
*h
,
4310 struct CommandList
*c
, u32
*taglower
, u32
*tagupper
)
4312 if (c
->cmd_type
== CMD_IOACCEL1
) {
4313 struct io_accel1_cmd
*cm1
= (struct io_accel1_cmd
*)
4314 &h
->ioaccel_cmd_pool
[c
->cmdindex
];
4315 *tagupper
= (u32
) (cm1
->tag
>> 32);
4316 *taglower
= (u32
) (cm1
->tag
& 0x0ffffffffULL
);
4319 if (c
->cmd_type
== CMD_IOACCEL2
) {
4320 struct io_accel2_cmd
*cm2
= (struct io_accel2_cmd
*)
4321 &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
4322 /* upper tag not used in ioaccel2 mode */
4323 memset(tagupper
, 0, sizeof(*tagupper
));
4324 *taglower
= cm2
->Tag
;
4327 *tagupper
= (u32
) (c
->Header
.tag
>> 32);
4328 *taglower
= (u32
) (c
->Header
.tag
& 0x0ffffffffULL
);
4331 static int hpsa_send_abort(struct ctlr_info
*h
, unsigned char *scsi3addr
,
4332 struct CommandList
*abort
, int swizzle
)
4335 struct CommandList
*c
;
4336 struct ErrorInfo
*ei
;
4337 u32 tagupper
, taglower
;
4339 c
= cmd_special_alloc(h
);
4340 if (c
== NULL
) { /* trouble... */
4341 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
4345 /* fill_cmd can't fail here, no buffer to map */
4346 (void) fill_cmd(c
, HPSA_ABORT_MSG
, h
, abort
,
4347 0, 0, scsi3addr
, TYPE_MSG
);
4349 swizzle_abort_tag(&c
->Request
.CDB
[4]);
4350 hpsa_scsi_do_simple_cmd_core(h
, c
);
4351 hpsa_get_tag(h
, abort
, &taglower
, &tagupper
);
4352 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: do_simple_cmd_core completed.\n",
4353 __func__
, tagupper
, taglower
);
4354 /* no unmap needed here because no data xfer. */
4357 switch (ei
->CommandStatus
) {
4360 case CMD_UNABORTABLE
: /* Very common, don't make noise. */
4364 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: interpreting error.\n",
4365 __func__
, tagupper
, taglower
);
4366 hpsa_scsi_interpret_error(h
, c
);
4370 cmd_special_free(h
, c
);
4371 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: Finished.\n",
4372 __func__
, tagupper
, taglower
);
4377 * hpsa_find_cmd_in_queue
4379 * Used to determine whether a command (find) is still present
4380 * in queue_head. Optionally excludes the last element of queue_head.
4382 * This is used to avoid unnecessary aborts. Commands in h->reqQ have
4383 * not yet been submitted, and so can be aborted by the driver without
4384 * sending an abort to the hardware.
4386 * Returns pointer to command if found in queue, NULL otherwise.
4388 static struct CommandList
*hpsa_find_cmd_in_queue(struct ctlr_info
*h
,
4389 struct scsi_cmnd
*find
, struct list_head
*queue_head
)
4391 unsigned long flags
;
4392 struct CommandList
*c
= NULL
; /* ptr into cmpQ */
4396 spin_lock_irqsave(&h
->lock
, flags
);
4397 list_for_each_entry(c
, queue_head
, list
) {
4398 if (c
->scsi_cmd
== NULL
) /* e.g.: passthru ioctl */
4400 if (c
->scsi_cmd
== find
) {
4401 spin_unlock_irqrestore(&h
->lock
, flags
);
4405 spin_unlock_irqrestore(&h
->lock
, flags
);
4409 static struct CommandList
*hpsa_find_cmd_in_queue_by_tag(struct ctlr_info
*h
,
4410 u8
*tag
, struct list_head
*queue_head
)
4412 unsigned long flags
;
4413 struct CommandList
*c
;
4415 spin_lock_irqsave(&h
->lock
, flags
);
4416 list_for_each_entry(c
, queue_head
, list
) {
4417 if (memcmp(&c
->Header
.tag
, tag
, 8) != 0)
4419 spin_unlock_irqrestore(&h
->lock
, flags
);
4422 spin_unlock_irqrestore(&h
->lock
, flags
);
4426 /* ioaccel2 path firmware cannot handle abort task requests.
4427 * Change abort requests to physical target reset, and send to the
4428 * address of the physical disk used for the ioaccel 2 command.
4429 * Return 0 on success (IO_OK)
4433 static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info
*h
,
4434 unsigned char *scsi3addr
, struct CommandList
*abort
)
4437 struct scsi_cmnd
*scmd
; /* scsi command within request being aborted */
4438 struct hpsa_scsi_dev_t
*dev
; /* device to which scsi cmd was sent */
4439 unsigned char phys_scsi3addr
[8]; /* addr of phys disk with volume */
4440 unsigned char *psa
= &phys_scsi3addr
[0];
4442 /* Get a pointer to the hpsa logical device. */
4443 scmd
= (struct scsi_cmnd
*) abort
->scsi_cmd
;
4444 dev
= (struct hpsa_scsi_dev_t
*)(scmd
->device
->hostdata
);
4446 dev_warn(&h
->pdev
->dev
,
4447 "Cannot abort: no device pointer for command.\n");
4448 return -1; /* not abortable */
4451 if (h
->raid_offload_debug
> 0)
4452 dev_info(&h
->pdev
->dev
,
4453 "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",
4454 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
,
4455 scsi3addr
[0], scsi3addr
[1], scsi3addr
[2], scsi3addr
[3],
4456 scsi3addr
[4], scsi3addr
[5], scsi3addr
[6], scsi3addr
[7]);
4458 if (!dev
->offload_enabled
) {
4459 dev_warn(&h
->pdev
->dev
,
4460 "Can't abort: device is not operating in HP SSD Smart Path mode.\n");
4461 return -1; /* not abortable */
4464 /* Incoming scsi3addr is logical addr. We need physical disk addr. */
4465 if (!hpsa_get_pdisk_of_ioaccel2(h
, abort
, psa
)) {
4466 dev_warn(&h
->pdev
->dev
, "Can't abort: Failed lookup of physical address.\n");
4467 return -1; /* not abortable */
4470 /* send the reset */
4471 if (h
->raid_offload_debug
> 0)
4472 dev_info(&h
->pdev
->dev
,
4473 "Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4474 psa
[0], psa
[1], psa
[2], psa
[3],
4475 psa
[4], psa
[5], psa
[6], psa
[7]);
4476 rc
= hpsa_send_reset(h
, psa
, HPSA_RESET_TYPE_TARGET
);
4478 dev_warn(&h
->pdev
->dev
,
4479 "Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4480 psa
[0], psa
[1], psa
[2], psa
[3],
4481 psa
[4], psa
[5], psa
[6], psa
[7]);
4482 return rc
; /* failed to reset */
4485 /* wait for device to recover */
4486 if (wait_for_device_to_become_ready(h
, psa
) != 0) {
4487 dev_warn(&h
->pdev
->dev
,
4488 "Reset as abort: Failed: Device never recovered from reset: 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4489 psa
[0], psa
[1], psa
[2], psa
[3],
4490 psa
[4], psa
[5], psa
[6], psa
[7]);
4491 return -1; /* failed to recover */
4494 /* device recovered */
4495 dev_info(&h
->pdev
->dev
,
4496 "Reset as abort: Device recovered from reset: scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4497 psa
[0], psa
[1], psa
[2], psa
[3],
4498 psa
[4], psa
[5], psa
[6], psa
[7]);
4500 return rc
; /* success */
4503 /* Some Smart Arrays need the abort tag swizzled, and some don't. It's hard to
4504 * tell which kind we're dealing with, so we send the abort both ways. There
4505 * shouldn't be any collisions between swizzled and unswizzled tags due to the
4506 * way we construct our tags but we check anyway in case the assumptions which
4507 * make this true someday become false.
4509 static int hpsa_send_abort_both_ways(struct ctlr_info
*h
,
4510 unsigned char *scsi3addr
, struct CommandList
*abort
)
4513 struct CommandList
*c
;
4514 int rc
= 0, rc2
= 0;
4516 /* ioccelerator mode 2 commands should be aborted via the
4517 * accelerated path, since RAID path is unaware of these commands,
4518 * but underlying firmware can't handle abort TMF.
4519 * Change abort to physical device reset.
4521 if (abort
->cmd_type
== CMD_IOACCEL2
)
4522 return hpsa_send_reset_as_abort_ioaccel2(h
, scsi3addr
, abort
);
4524 /* we do not expect to find the swizzled tag in our queue, but
4525 * check anyway just to be sure the assumptions which make this
4526 * the case haven't become wrong.
4528 memcpy(swizzled_tag
, &abort
->Request
.CDB
[4], 8);
4529 swizzle_abort_tag(swizzled_tag
);
4530 c
= hpsa_find_cmd_in_queue_by_tag(h
, swizzled_tag
, &h
->cmpQ
);
4532 dev_warn(&h
->pdev
->dev
, "Unexpectedly found byte-swapped tag in completion queue.\n");
4533 return hpsa_send_abort(h
, scsi3addr
, abort
, 0);
4535 rc
= hpsa_send_abort(h
, scsi3addr
, abort
, 0);
4537 /* if the command is still in our queue, we can't conclude that it was
4538 * aborted (it might have just completed normally) but in any case
4539 * we don't need to try to abort it another way.
4541 c
= hpsa_find_cmd_in_queue(h
, abort
->scsi_cmd
, &h
->cmpQ
);
4543 rc2
= hpsa_send_abort(h
, scsi3addr
, abort
, 1);
4547 /* Send an abort for the specified command.
4548 * If the device and controller support it,
4549 * send a task abort request.
4551 static int hpsa_eh_abort_handler(struct scsi_cmnd
*sc
)
4555 struct ctlr_info
*h
;
4556 struct hpsa_scsi_dev_t
*dev
;
4557 struct CommandList
*abort
; /* pointer to command to be aborted */
4558 struct CommandList
*found
;
4559 struct scsi_cmnd
*as
; /* ptr to scsi cmd inside aborted command. */
4560 char msg
[256]; /* For debug messaging. */
4562 u32 tagupper
, taglower
;
4564 /* Find the controller of the command to be aborted */
4565 h
= sdev_to_hba(sc
->device
);
4567 "ABORT REQUEST FAILED, Controller lookup failed.\n"))
4570 /* Check that controller supports some kind of task abort */
4571 if (!(HPSATMF_PHYS_TASK_ABORT
& h
->TMFSupportFlags
) &&
4572 !(HPSATMF_LOG_TASK_ABORT
& h
->TMFSupportFlags
))
4575 memset(msg
, 0, sizeof(msg
));
4576 ml
+= sprintf(msg
+ml
, "ABORT REQUEST on C%d:B%d:T%d:L%llu ",
4577 h
->scsi_host
->host_no
, sc
->device
->channel
,
4578 sc
->device
->id
, sc
->device
->lun
);
4580 /* Find the device of the command to be aborted */
4581 dev
= sc
->device
->hostdata
;
4583 dev_err(&h
->pdev
->dev
, "%s FAILED, Device lookup failed.\n",
4588 /* Get SCSI command to be aborted */
4589 abort
= (struct CommandList
*) sc
->host_scribble
;
4590 if (abort
== NULL
) {
4591 dev_err(&h
->pdev
->dev
, "%s FAILED, Command to abort is NULL.\n",
4595 hpsa_get_tag(h
, abort
, &taglower
, &tagupper
);
4596 ml
+= sprintf(msg
+ml
, "Tag:0x%08x:%08x ", tagupper
, taglower
);
4597 as
= (struct scsi_cmnd
*) abort
->scsi_cmd
;
4599 ml
+= sprintf(msg
+ml
, "Command:0x%x SN:0x%lx ",
4600 as
->cmnd
[0], as
->serial_number
);
4601 dev_dbg(&h
->pdev
->dev
, "%s\n", msg
);
4602 dev_warn(&h
->pdev
->dev
, "Abort request on C%d:B%d:T%d:L%d\n",
4603 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
);
4605 /* Search reqQ to See if command is queued but not submitted,
4606 * if so, complete the command with aborted status and remove
4609 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->reqQ
);
4611 found
->err_info
->CommandStatus
= CMD_ABORTED
;
4613 dev_info(&h
->pdev
->dev
, "%s Request SUCCEEDED (driver queue).\n",
4618 /* not in reqQ, if also not in cmpQ, must have already completed */
4619 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->cmpQ
);
4621 dev_dbg(&h
->pdev
->dev
, "%s Request SUCCEEDED (not known to driver).\n",
4627 * Command is in flight, or possibly already completed
4628 * by the firmware (but not to the scsi mid layer) but we can't
4629 * distinguish which. Send the abort down.
4631 rc
= hpsa_send_abort_both_ways(h
, dev
->scsi3addr
, abort
);
4633 dev_dbg(&h
->pdev
->dev
, "%s Request FAILED.\n", msg
);
4634 dev_warn(&h
->pdev
->dev
, "FAILED abort on device C%d:B%d:T%d:L%d\n",
4635 h
->scsi_host
->host_no
,
4636 dev
->bus
, dev
->target
, dev
->lun
);
4639 dev_info(&h
->pdev
->dev
, "%s REQUEST SUCCEEDED.\n", msg
);
4641 /* If the abort(s) above completed and actually aborted the
4642 * command, then the command to be aborted should already be
4643 * completed. If not, wait around a bit more to see if they
4644 * manage to complete normally.
4646 #define ABORT_COMPLETE_WAIT_SECS 30
4647 for (i
= 0; i
< ABORT_COMPLETE_WAIT_SECS
* 10; i
++) {
4648 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->cmpQ
);
4653 dev_warn(&h
->pdev
->dev
, "%s FAILED. Aborted command has not completed after %d seconds.\n",
4654 msg
, ABORT_COMPLETE_WAIT_SECS
);
4660 * For operations that cannot sleep, a command block is allocated at init,
4661 * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track
4662 * which ones are free or in use. Lock must be held when calling this.
4663 * cmd_free() is the complement.
4665 static struct CommandList
*cmd_alloc(struct ctlr_info
*h
)
4667 struct CommandList
*c
;
4669 union u64bit temp64
;
4670 dma_addr_t cmd_dma_handle
, err_dma_handle
;
4671 unsigned long flags
;
4673 spin_lock_irqsave(&h
->lock
, flags
);
4675 i
= find_first_zero_bit(h
->cmd_pool_bits
, h
->nr_cmds
);
4676 if (i
== h
->nr_cmds
) {
4677 spin_unlock_irqrestore(&h
->lock
, flags
);
4680 } while (test_and_set_bit
4681 (i
& (BITS_PER_LONG
- 1),
4682 h
->cmd_pool_bits
+ (i
/ BITS_PER_LONG
)) != 0);
4683 spin_unlock_irqrestore(&h
->lock
, flags
);
4685 c
= h
->cmd_pool
+ i
;
4686 memset(c
, 0, sizeof(*c
));
4687 cmd_dma_handle
= h
->cmd_pool_dhandle
4689 c
->err_info
= h
->errinfo_pool
+ i
;
4690 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
4691 err_dma_handle
= h
->errinfo_pool_dhandle
4692 + i
* sizeof(*c
->err_info
);
4696 INIT_LIST_HEAD(&c
->list
);
4697 c
->busaddr
= (u32
) cmd_dma_handle
;
4698 temp64
.val
= (u64
) err_dma_handle
;
4699 c
->ErrDesc
.Addr
= cpu_to_le64(err_dma_handle
);
4700 c
->ErrDesc
.Len
= cpu_to_le32(sizeof(*c
->err_info
));
4706 /* For operations that can wait for kmalloc to possibly sleep,
4707 * this routine can be called. Lock need not be held to call
4708 * cmd_special_alloc. cmd_special_free() is the complement.
4710 static struct CommandList
*cmd_special_alloc(struct ctlr_info
*h
)
4712 struct CommandList
*c
;
4713 dma_addr_t cmd_dma_handle
, err_dma_handle
;
4715 c
= pci_zalloc_consistent(h
->pdev
, sizeof(*c
), &cmd_dma_handle
);
4719 c
->cmd_type
= CMD_SCSI
;
4722 c
->err_info
= pci_zalloc_consistent(h
->pdev
, sizeof(*c
->err_info
),
4725 if (c
->err_info
== NULL
) {
4726 pci_free_consistent(h
->pdev
,
4727 sizeof(*c
), c
, cmd_dma_handle
);
4731 INIT_LIST_HEAD(&c
->list
);
4732 c
->busaddr
= (u32
) cmd_dma_handle
;
4733 c
->ErrDesc
.Addr
= cpu_to_le64(err_dma_handle
);
4734 c
->ErrDesc
.Len
= cpu_to_le32(sizeof(*c
->err_info
));
4740 static void cmd_free(struct ctlr_info
*h
, struct CommandList
*c
)
4743 unsigned long flags
;
4745 i
= c
- h
->cmd_pool
;
4746 spin_lock_irqsave(&h
->lock
, flags
);
4747 clear_bit(i
& (BITS_PER_LONG
- 1),
4748 h
->cmd_pool_bits
+ (i
/ BITS_PER_LONG
));
4749 spin_unlock_irqrestore(&h
->lock
, flags
);
4752 static void cmd_special_free(struct ctlr_info
*h
, struct CommandList
*c
)
4754 pci_free_consistent(h
->pdev
, sizeof(*c
->err_info
),
4756 (dma_addr_t
) le64_to_cpu(c
->ErrDesc
.Addr
));
4757 pci_free_consistent(h
->pdev
, sizeof(*c
),
4758 c
, (dma_addr_t
) (c
->busaddr
& DIRECT_LOOKUP_MASK
));
4761 #ifdef CONFIG_COMPAT
4763 static int hpsa_ioctl32_passthru(struct scsi_device
*dev
, int cmd
,
4766 IOCTL32_Command_struct __user
*arg32
=
4767 (IOCTL32_Command_struct __user
*) arg
;
4768 IOCTL_Command_struct arg64
;
4769 IOCTL_Command_struct __user
*p
= compat_alloc_user_space(sizeof(arg64
));
4773 memset(&arg64
, 0, sizeof(arg64
));
4775 err
|= copy_from_user(&arg64
.LUN_info
, &arg32
->LUN_info
,
4776 sizeof(arg64
.LUN_info
));
4777 err
|= copy_from_user(&arg64
.Request
, &arg32
->Request
,
4778 sizeof(arg64
.Request
));
4779 err
|= copy_from_user(&arg64
.error_info
, &arg32
->error_info
,
4780 sizeof(arg64
.error_info
));
4781 err
|= get_user(arg64
.buf_size
, &arg32
->buf_size
);
4782 err
|= get_user(cp
, &arg32
->buf
);
4783 arg64
.buf
= compat_ptr(cp
);
4784 err
|= copy_to_user(p
, &arg64
, sizeof(arg64
));
4789 err
= hpsa_ioctl(dev
, CCISS_PASSTHRU
, p
);
4792 err
|= copy_in_user(&arg32
->error_info
, &p
->error_info
,
4793 sizeof(arg32
->error_info
));
4799 static int hpsa_ioctl32_big_passthru(struct scsi_device
*dev
,
4800 int cmd
, void __user
*arg
)
4802 BIG_IOCTL32_Command_struct __user
*arg32
=
4803 (BIG_IOCTL32_Command_struct __user
*) arg
;
4804 BIG_IOCTL_Command_struct arg64
;
4805 BIG_IOCTL_Command_struct __user
*p
=
4806 compat_alloc_user_space(sizeof(arg64
));
4810 memset(&arg64
, 0, sizeof(arg64
));
4812 err
|= copy_from_user(&arg64
.LUN_info
, &arg32
->LUN_info
,
4813 sizeof(arg64
.LUN_info
));
4814 err
|= copy_from_user(&arg64
.Request
, &arg32
->Request
,
4815 sizeof(arg64
.Request
));
4816 err
|= copy_from_user(&arg64
.error_info
, &arg32
->error_info
,
4817 sizeof(arg64
.error_info
));
4818 err
|= get_user(arg64
.buf_size
, &arg32
->buf_size
);
4819 err
|= get_user(arg64
.malloc_size
, &arg32
->malloc_size
);
4820 err
|= get_user(cp
, &arg32
->buf
);
4821 arg64
.buf
= compat_ptr(cp
);
4822 err
|= copy_to_user(p
, &arg64
, sizeof(arg64
));
4827 err
= hpsa_ioctl(dev
, CCISS_BIG_PASSTHRU
, p
);
4830 err
|= copy_in_user(&arg32
->error_info
, &p
->error_info
,
4831 sizeof(arg32
->error_info
));
4837 static int hpsa_compat_ioctl(struct scsi_device
*dev
, int cmd
, void __user
*arg
)
4840 case CCISS_GETPCIINFO
:
4841 case CCISS_GETINTINFO
:
4842 case CCISS_SETINTINFO
:
4843 case CCISS_GETNODENAME
:
4844 case CCISS_SETNODENAME
:
4845 case CCISS_GETHEARTBEAT
:
4846 case CCISS_GETBUSTYPES
:
4847 case CCISS_GETFIRMVER
:
4848 case CCISS_GETDRIVVER
:
4849 case CCISS_REVALIDVOLS
:
4850 case CCISS_DEREGDISK
:
4851 case CCISS_REGNEWDISK
:
4853 case CCISS_RESCANDISK
:
4854 case CCISS_GETLUNINFO
:
4855 return hpsa_ioctl(dev
, cmd
, arg
);
4857 case CCISS_PASSTHRU32
:
4858 return hpsa_ioctl32_passthru(dev
, cmd
, arg
);
4859 case CCISS_BIG_PASSTHRU32
:
4860 return hpsa_ioctl32_big_passthru(dev
, cmd
, arg
);
4863 return -ENOIOCTLCMD
;
4868 static int hpsa_getpciinfo_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4870 struct hpsa_pci_info pciinfo
;
4874 pciinfo
.domain
= pci_domain_nr(h
->pdev
->bus
);
4875 pciinfo
.bus
= h
->pdev
->bus
->number
;
4876 pciinfo
.dev_fn
= h
->pdev
->devfn
;
4877 pciinfo
.board_id
= h
->board_id
;
4878 if (copy_to_user(argp
, &pciinfo
, sizeof(pciinfo
)))
4883 static int hpsa_getdrivver_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4885 DriverVer_type DriverVer
;
4886 unsigned char vmaj
, vmin
, vsubmin
;
4889 rc
= sscanf(HPSA_DRIVER_VERSION
, "%hhu.%hhu.%hhu",
4890 &vmaj
, &vmin
, &vsubmin
);
4892 dev_info(&h
->pdev
->dev
, "driver version string '%s' "
4893 "unrecognized.", HPSA_DRIVER_VERSION
);
4898 DriverVer
= (vmaj
<< 16) | (vmin
<< 8) | vsubmin
;
4901 if (copy_to_user(argp
, &DriverVer
, sizeof(DriverVer_type
)))
4906 static int hpsa_passthru_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4908 IOCTL_Command_struct iocommand
;
4909 struct CommandList
*c
;
4916 if (!capable(CAP_SYS_RAWIO
))
4918 if (copy_from_user(&iocommand
, argp
, sizeof(iocommand
)))
4920 if ((iocommand
.buf_size
< 1) &&
4921 (iocommand
.Request
.Type
.Direction
!= XFER_NONE
)) {
4924 if (iocommand
.buf_size
> 0) {
4925 buff
= kmalloc(iocommand
.buf_size
, GFP_KERNEL
);
4928 if (iocommand
.Request
.Type
.Direction
& XFER_WRITE
) {
4929 /* Copy the data into the buffer we created */
4930 if (copy_from_user(buff
, iocommand
.buf
,
4931 iocommand
.buf_size
)) {
4936 memset(buff
, 0, iocommand
.buf_size
);
4939 c
= cmd_special_alloc(h
);
4944 /* Fill in the command type */
4945 c
->cmd_type
= CMD_IOCTL_PEND
;
4946 /* Fill in Command Header */
4947 c
->Header
.ReplyQueue
= 0; /* unused in simple mode */
4948 if (iocommand
.buf_size
> 0) { /* buffer to fill */
4949 c
->Header
.SGList
= 1;
4950 c
->Header
.SGTotal
= cpu_to_le16(1);
4951 } else { /* no buffers to fill */
4952 c
->Header
.SGList
= 0;
4953 c
->Header
.SGTotal
= cpu_to_le16(0);
4955 memcpy(&c
->Header
.LUN
, &iocommand
.LUN_info
, sizeof(c
->Header
.LUN
));
4956 /* use the kernel address the cmd block for tag */
4957 c
->Header
.tag
= c
->busaddr
;
4959 /* Fill in Request block */
4960 memcpy(&c
->Request
, &iocommand
.Request
,
4961 sizeof(c
->Request
));
4963 /* Fill in the scatter gather information */
4964 if (iocommand
.buf_size
> 0) {
4965 temp64
= pci_map_single(h
->pdev
, buff
,
4966 iocommand
.buf_size
, PCI_DMA_BIDIRECTIONAL
);
4967 if (dma_mapping_error(&h
->pdev
->dev
, (dma_addr_t
) temp64
)) {
4968 c
->SG
[0].Addr
= cpu_to_le64(0);
4969 c
->SG
[0].Len
= cpu_to_le32(0);
4973 c
->SG
[0].Addr
= cpu_to_le64(temp64
);
4974 c
->SG
[0].Len
= cpu_to_le32(iocommand
.buf_size
);
4975 c
->SG
[0].Ext
= cpu_to_le32(HPSA_SG_LAST
); /* not chaining */
4977 hpsa_scsi_do_simple_cmd_core_if_no_lockup(h
, c
);
4978 if (iocommand
.buf_size
> 0)
4979 hpsa_pci_unmap(h
->pdev
, c
, 1, PCI_DMA_BIDIRECTIONAL
);
4980 check_ioctl_unit_attention(h
, c
);
4982 /* Copy the error information out */
4983 memcpy(&iocommand
.error_info
, c
->err_info
,
4984 sizeof(iocommand
.error_info
));
4985 if (copy_to_user(argp
, &iocommand
, sizeof(iocommand
))) {
4989 if ((iocommand
.Request
.Type
.Direction
& XFER_READ
) &&
4990 iocommand
.buf_size
> 0) {
4991 /* Copy the data out of the buffer we created */
4992 if (copy_to_user(iocommand
.buf
, buff
, iocommand
.buf_size
)) {
4998 cmd_special_free(h
, c
);
5004 static int hpsa_big_passthru_ioctl(struct ctlr_info
*h
, void __user
*argp
)
5006 BIG_IOCTL_Command_struct
*ioc
;
5007 struct CommandList
*c
;
5008 unsigned char **buff
= NULL
;
5009 int *buff_size
= NULL
;
5016 BYTE __user
*data_ptr
;
5020 if (!capable(CAP_SYS_RAWIO
))
5022 ioc
= (BIG_IOCTL_Command_struct
*)
5023 kmalloc(sizeof(*ioc
), GFP_KERNEL
);
5028 if (copy_from_user(ioc
, argp
, sizeof(*ioc
))) {
5032 if ((ioc
->buf_size
< 1) &&
5033 (ioc
->Request
.Type
.Direction
!= XFER_NONE
)) {
5037 /* Check kmalloc limits using all SGs */
5038 if (ioc
->malloc_size
> MAX_KMALLOC_SIZE
) {
5042 if (ioc
->buf_size
> ioc
->malloc_size
* SG_ENTRIES_IN_CMD
) {
5046 buff
= kzalloc(SG_ENTRIES_IN_CMD
* sizeof(char *), GFP_KERNEL
);
5051 buff_size
= kmalloc(SG_ENTRIES_IN_CMD
* sizeof(int), GFP_KERNEL
);
5056 left
= ioc
->buf_size
;
5057 data_ptr
= ioc
->buf
;
5059 sz
= (left
> ioc
->malloc_size
) ? ioc
->malloc_size
: left
;
5060 buff_size
[sg_used
] = sz
;
5061 buff
[sg_used
] = kmalloc(sz
, GFP_KERNEL
);
5062 if (buff
[sg_used
] == NULL
) {
5066 if (ioc
->Request
.Type
.Direction
& XFER_WRITE
) {
5067 if (copy_from_user(buff
[sg_used
], data_ptr
, sz
)) {
5072 memset(buff
[sg_used
], 0, sz
);
5077 c
= cmd_special_alloc(h
);
5082 c
->cmd_type
= CMD_IOCTL_PEND
;
5083 c
->Header
.ReplyQueue
= 0;
5084 c
->Header
.SGList
= (u8
) sg_used
;
5085 c
->Header
.SGTotal
= cpu_to_le16(sg_used
);
5086 memcpy(&c
->Header
.LUN
, &ioc
->LUN_info
, sizeof(c
->Header
.LUN
));
5087 c
->Header
.tag
= c
->busaddr
;
5088 memcpy(&c
->Request
, &ioc
->Request
, sizeof(c
->Request
));
5089 if (ioc
->buf_size
> 0) {
5091 for (i
= 0; i
< sg_used
; i
++) {
5092 temp64
= pci_map_single(h
->pdev
, buff
[i
],
5093 buff_size
[i
], PCI_DMA_BIDIRECTIONAL
);
5094 if (dma_mapping_error(&h
->pdev
->dev
,
5095 (dma_addr_t
) temp64
)) {
5096 c
->SG
[i
].Addr
= cpu_to_le64(0);
5097 c
->SG
[i
].Len
= cpu_to_le32(0);
5098 hpsa_pci_unmap(h
->pdev
, c
, i
,
5099 PCI_DMA_BIDIRECTIONAL
);
5103 c
->SG
[i
].Addr
= cpu_to_le64(temp64
);
5104 c
->SG
[i
].Len
= cpu_to_le32(buff_size
[i
]);
5105 c
->SG
[i
].Ext
= cpu_to_le32(0);
5107 c
->SG
[--i
].Ext
= cpu_to_le32(HPSA_SG_LAST
);
5109 hpsa_scsi_do_simple_cmd_core_if_no_lockup(h
, c
);
5111 hpsa_pci_unmap(h
->pdev
, c
, sg_used
, PCI_DMA_BIDIRECTIONAL
);
5112 check_ioctl_unit_attention(h
, c
);
5113 /* Copy the error information out */
5114 memcpy(&ioc
->error_info
, c
->err_info
, sizeof(ioc
->error_info
));
5115 if (copy_to_user(argp
, ioc
, sizeof(*ioc
))) {
5119 if ((ioc
->Request
.Type
.Direction
& XFER_READ
) && ioc
->buf_size
> 0) {
5120 /* Copy the data out of the buffer we created */
5121 BYTE __user
*ptr
= ioc
->buf
;
5122 for (i
= 0; i
< sg_used
; i
++) {
5123 if (copy_to_user(ptr
, buff
[i
], buff_size
[i
])) {
5127 ptr
+= buff_size
[i
];
5132 cmd_special_free(h
, c
);
5135 for (i
= 0; i
< sg_used
; i
++)
5144 static void check_ioctl_unit_attention(struct ctlr_info
*h
,
5145 struct CommandList
*c
)
5147 if (c
->err_info
->CommandStatus
== CMD_TARGET_STATUS
&&
5148 c
->err_info
->ScsiStatus
!= SAM_STAT_CHECK_CONDITION
)
5149 (void) check_for_unit_attention(h
, c
);
5152 static int increment_passthru_count(struct ctlr_info
*h
)
5154 unsigned long flags
;
5156 spin_lock_irqsave(&h
->passthru_count_lock
, flags
);
5157 if (h
->passthru_count
>= HPSA_MAX_CONCURRENT_PASSTHRUS
) {
5158 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5161 h
->passthru_count
++;
5162 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5166 static void decrement_passthru_count(struct ctlr_info
*h
)
5168 unsigned long flags
;
5170 spin_lock_irqsave(&h
->passthru_count_lock
, flags
);
5171 if (h
->passthru_count
<= 0) {
5172 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5173 /* not expecting to get here. */
5174 dev_warn(&h
->pdev
->dev
, "Bug detected, passthru_count seems to be incorrect.\n");
5177 h
->passthru_count
--;
5178 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5184 static int hpsa_ioctl(struct scsi_device
*dev
, int cmd
, void __user
*arg
)
5186 struct ctlr_info
*h
;
5187 void __user
*argp
= (void __user
*)arg
;
5190 h
= sdev_to_hba(dev
);
5193 case CCISS_DEREGDISK
:
5194 case CCISS_REGNEWDISK
:
5196 hpsa_scan_start(h
->scsi_host
);
5198 case CCISS_GETPCIINFO
:
5199 return hpsa_getpciinfo_ioctl(h
, argp
);
5200 case CCISS_GETDRIVVER
:
5201 return hpsa_getdrivver_ioctl(h
, argp
);
5202 case CCISS_PASSTHRU
:
5203 if (increment_passthru_count(h
))
5205 rc
= hpsa_passthru_ioctl(h
, argp
);
5206 decrement_passthru_count(h
);
5208 case CCISS_BIG_PASSTHRU
:
5209 if (increment_passthru_count(h
))
5211 rc
= hpsa_big_passthru_ioctl(h
, argp
);
5212 decrement_passthru_count(h
);
5219 static int hpsa_send_host_reset(struct ctlr_info
*h
, unsigned char *scsi3addr
,
5222 struct CommandList
*c
;
5227 /* fill_cmd can't fail here, no data buffer to map */
5228 (void) fill_cmd(c
, HPSA_DEVICE_RESET_MSG
, h
, NULL
, 0, 0,
5229 RAID_CTLR_LUNID
, TYPE_MSG
);
5230 c
->Request
.CDB
[1] = reset_type
; /* fill_cmd defaults to target reset */
5232 enqueue_cmd_and_start_io(h
, c
);
5233 /* Don't wait for completion, the reset won't complete. Don't free
5234 * the command either. This is the last command we will send before
5235 * re-initializing everything, so it doesn't matter and won't leak.
5240 static int fill_cmd(struct CommandList
*c
, u8 cmd
, struct ctlr_info
*h
,
5241 void *buff
, size_t size
, u16 page_code
, unsigned char *scsi3addr
,
5244 int pci_dir
= XFER_NONE
;
5245 struct CommandList
*a
; /* for commands to be aborted */
5248 c
->cmd_type
= CMD_IOCTL_PEND
;
5249 c
->Header
.ReplyQueue
= 0;
5250 if (buff
!= NULL
&& size
> 0) {
5251 c
->Header
.SGList
= 1;
5252 c
->Header
.SGTotal
= cpu_to_le16(1);
5254 c
->Header
.SGList
= 0;
5255 c
->Header
.SGTotal
= cpu_to_le16(0);
5257 c
->Header
.tag
= c
->busaddr
;
5258 memcpy(c
->Header
.LUN
.LunAddrBytes
, scsi3addr
, 8);
5260 c
->Request
.Type
.Type
= cmd_type
;
5261 if (cmd_type
== TYPE_CMD
) {
5264 /* are we trying to read a vital product page */
5265 if (page_code
& VPD_PAGE
) {
5266 c
->Request
.CDB
[1] = 0x01;
5267 c
->Request
.CDB
[2] = (page_code
& 0xff);
5269 c
->Request
.CDBLen
= 6;
5270 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5271 c
->Request
.Type
.Direction
= XFER_READ
;
5272 c
->Request
.Timeout
= 0;
5273 c
->Request
.CDB
[0] = HPSA_INQUIRY
;
5274 c
->Request
.CDB
[4] = size
& 0xFF;
5276 case HPSA_REPORT_LOG
:
5277 case HPSA_REPORT_PHYS
:
5278 /* Talking to controller so It's a physical command
5279 mode = 00 target = 0. Nothing to write.
5281 c
->Request
.CDBLen
= 12;
5282 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5283 c
->Request
.Type
.Direction
= XFER_READ
;
5284 c
->Request
.Timeout
= 0;
5285 c
->Request
.CDB
[0] = cmd
;
5286 c
->Request
.CDB
[6] = (size
>> 24) & 0xFF; /* MSB */
5287 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5288 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5289 c
->Request
.CDB
[9] = size
& 0xFF;
5291 case HPSA_CACHE_FLUSH
:
5292 c
->Request
.CDBLen
= 12;
5293 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5294 c
->Request
.Type
.Direction
= XFER_WRITE
;
5295 c
->Request
.Timeout
= 0;
5296 c
->Request
.CDB
[0] = BMIC_WRITE
;
5297 c
->Request
.CDB
[6] = BMIC_CACHE_FLUSH
;
5298 c
->Request
.CDB
[7] = (size
>> 8) & 0xFF;
5299 c
->Request
.CDB
[8] = size
& 0xFF;
5301 case TEST_UNIT_READY
:
5302 c
->Request
.CDBLen
= 6;
5303 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5304 c
->Request
.Type
.Direction
= XFER_NONE
;
5305 c
->Request
.Timeout
= 0;
5307 case HPSA_GET_RAID_MAP
:
5308 c
->Request
.CDBLen
= 12;
5309 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5310 c
->Request
.Type
.Direction
= XFER_READ
;
5311 c
->Request
.Timeout
= 0;
5312 c
->Request
.CDB
[0] = HPSA_CISS_READ
;
5313 c
->Request
.CDB
[1] = cmd
;
5314 c
->Request
.CDB
[6] = (size
>> 24) & 0xFF; /* MSB */
5315 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5316 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5317 c
->Request
.CDB
[9] = size
& 0xFF;
5319 case BMIC_SENSE_CONTROLLER_PARAMETERS
:
5320 c
->Request
.CDBLen
= 10;
5321 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5322 c
->Request
.Type
.Direction
= XFER_READ
;
5323 c
->Request
.Timeout
= 0;
5324 c
->Request
.CDB
[0] = BMIC_READ
;
5325 c
->Request
.CDB
[6] = BMIC_SENSE_CONTROLLER_PARAMETERS
;
5326 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5327 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5330 dev_warn(&h
->pdev
->dev
, "unknown command 0x%c\n", cmd
);
5334 } else if (cmd_type
== TYPE_MSG
) {
5337 case HPSA_DEVICE_RESET_MSG
:
5338 c
->Request
.CDBLen
= 16;
5339 c
->Request
.Type
.Type
= 1; /* It is a MSG not a CMD */
5340 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5341 c
->Request
.Type
.Direction
= XFER_NONE
;
5342 c
->Request
.Timeout
= 0; /* Don't time out */
5343 memset(&c
->Request
.CDB
[0], 0, sizeof(c
->Request
.CDB
));
5344 c
->Request
.CDB
[0] = cmd
;
5345 c
->Request
.CDB
[1] = HPSA_RESET_TYPE_LUN
;
5346 /* If bytes 4-7 are zero, it means reset the */
5348 c
->Request
.CDB
[4] = 0x00;
5349 c
->Request
.CDB
[5] = 0x00;
5350 c
->Request
.CDB
[6] = 0x00;
5351 c
->Request
.CDB
[7] = 0x00;
5353 case HPSA_ABORT_MSG
:
5354 a
= buff
; /* point to command to be aborted */
5355 dev_dbg(&h
->pdev
->dev
, "Abort Tag:0x%016llx using request Tag:0x%016llx",
5356 a
->Header
.tag
, c
->Header
.tag
);
5357 tlower
= (u32
) (a
->Header
.tag
>> 32);
5358 tupper
= (u32
) (a
->Header
.tag
& 0x0ffffffffULL
);
5359 c
->Request
.CDBLen
= 16;
5360 c
->Request
.Type
.Type
= TYPE_MSG
;
5361 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5362 c
->Request
.Type
.Direction
= XFER_WRITE
;
5363 c
->Request
.Timeout
= 0; /* Don't time out */
5364 c
->Request
.CDB
[0] = HPSA_TASK_MANAGEMENT
;
5365 c
->Request
.CDB
[1] = HPSA_TMF_ABORT_TASK
;
5366 c
->Request
.CDB
[2] = 0x00; /* reserved */
5367 c
->Request
.CDB
[3] = 0x00; /* reserved */
5368 /* Tag to abort goes in CDB[4]-CDB[11] */
5369 c
->Request
.CDB
[4] = tlower
& 0xFF;
5370 c
->Request
.CDB
[5] = (tlower
>> 8) & 0xFF;
5371 c
->Request
.CDB
[6] = (tlower
>> 16) & 0xFF;
5372 c
->Request
.CDB
[7] = (tlower
>> 24) & 0xFF;
5373 c
->Request
.CDB
[8] = tupper
& 0xFF;
5374 c
->Request
.CDB
[9] = (tupper
>> 8) & 0xFF;
5375 c
->Request
.CDB
[10] = (tupper
>> 16) & 0xFF;
5376 c
->Request
.CDB
[11] = (tupper
>> 24) & 0xFF;
5377 c
->Request
.CDB
[12] = 0x00; /* reserved */
5378 c
->Request
.CDB
[13] = 0x00; /* reserved */
5379 c
->Request
.CDB
[14] = 0x00; /* reserved */
5380 c
->Request
.CDB
[15] = 0x00; /* reserved */
5383 dev_warn(&h
->pdev
->dev
, "unknown message type %d\n",
5388 dev_warn(&h
->pdev
->dev
, "unknown command type %d\n", cmd_type
);
5392 switch (c
->Request
.Type
.Direction
) {
5394 pci_dir
= PCI_DMA_FROMDEVICE
;
5397 pci_dir
= PCI_DMA_TODEVICE
;
5400 pci_dir
= PCI_DMA_NONE
;
5403 pci_dir
= PCI_DMA_BIDIRECTIONAL
;
5405 if (hpsa_map_one(h
->pdev
, c
, buff
, size
, pci_dir
))
5411 * Map (physical) PCI mem into (virtual) kernel space
5413 static void __iomem
*remap_pci_mem(ulong base
, ulong size
)
5415 ulong page_base
= ((ulong
) base
) & PAGE_MASK
;
5416 ulong page_offs
= ((ulong
) base
) - page_base
;
5417 void __iomem
*page_remapped
= ioremap_nocache(page_base
,
5420 return page_remapped
? (page_remapped
+ page_offs
) : NULL
;
5423 /* Takes cmds off the submission queue and sends them to the hardware,
5424 * then puts them on the queue of cmds waiting for completion.
5425 * Assumes h->lock is held
5427 static void start_io(struct ctlr_info
*h
, unsigned long *flags
)
5429 struct CommandList
*c
;
5431 while (!list_empty(&h
->reqQ
)) {
5432 c
= list_entry(h
->reqQ
.next
, struct CommandList
, list
);
5433 /* can't do anything if fifo is full */
5434 if ((h
->access
.fifo_full(h
))) {
5435 h
->fifo_recently_full
= 1;
5436 dev_warn(&h
->pdev
->dev
, "fifo full\n");
5439 h
->fifo_recently_full
= 0;
5441 /* Get the first entry from the Request Q */
5445 /* Put job onto the completed Q */
5448 /* Must increment commands_outstanding before unlocking
5449 * and submitting to avoid race checking for fifo full
5452 h
->commands_outstanding
++;
5454 /* Tell the controller execute command */
5455 spin_unlock_irqrestore(&h
->lock
, *flags
);
5456 h
->access
.submit_command(h
, c
);
5457 spin_lock_irqsave(&h
->lock
, *flags
);
5461 static void lock_and_start_io(struct ctlr_info
*h
)
5463 unsigned long flags
;
5465 spin_lock_irqsave(&h
->lock
, flags
);
5466 start_io(h
, &flags
);
5467 spin_unlock_irqrestore(&h
->lock
, flags
);
5470 static inline unsigned long get_next_completion(struct ctlr_info
*h
, u8 q
)
5472 return h
->access
.command_completed(h
, q
);
5475 static inline bool interrupt_pending(struct ctlr_info
*h
)
5477 return h
->access
.intr_pending(h
);
5480 static inline long interrupt_not_for_us(struct ctlr_info
*h
)
5482 return (h
->access
.intr_pending(h
) == 0) ||
5483 (h
->interrupts_enabled
== 0);
5486 static inline int bad_tag(struct ctlr_info
*h
, u32 tag_index
,
5489 if (unlikely(tag_index
>= h
->nr_cmds
)) {
5490 dev_warn(&h
->pdev
->dev
, "bad tag 0x%08x ignored.\n", raw_tag
);
5496 static inline void finish_cmd(struct CommandList
*c
)
5498 unsigned long flags
;
5499 int io_may_be_stalled
= 0;
5500 struct ctlr_info
*h
= c
->h
;
5502 spin_lock_irqsave(&h
->lock
, flags
);
5506 * Check for possibly stalled i/o.
5508 * If a fifo_full condition is encountered, requests will back up
5509 * in h->reqQ. This queue is only emptied out by start_io which is
5510 * only called when a new i/o request comes in. If no i/o's are
5511 * forthcoming, the i/o's in h->reqQ can get stuck. So we call
5512 * start_io from here if we detect such a danger.
5514 * Normally, we shouldn't hit this case, but pounding on the
5515 * CCISS_PASSTHRU ioctl can provoke it. Only call start_io if
5516 * commands_outstanding is low. We want to avoid calling
5517 * start_io from in here as much as possible, and esp. don't
5518 * want to get in a cycle where we call start_io every time
5521 if (unlikely(h
->fifo_recently_full
) &&
5522 h
->commands_outstanding
< 5)
5523 io_may_be_stalled
= 1;
5525 spin_unlock_irqrestore(&h
->lock
, flags
);
5527 dial_up_lockup_detection_on_fw_flash_complete(c
->h
, c
);
5528 if (likely(c
->cmd_type
== CMD_IOACCEL1
|| c
->cmd_type
== CMD_SCSI
5529 || c
->cmd_type
== CMD_IOACCEL2
))
5530 complete_scsi_command(c
);
5531 else if (c
->cmd_type
== CMD_IOCTL_PEND
)
5532 complete(c
->waiting
);
5533 if (unlikely(io_may_be_stalled
))
5534 lock_and_start_io(h
);
5537 static inline u32
hpsa_tag_contains_index(u32 tag
)
5539 return tag
& DIRECT_LOOKUP_BIT
;
5542 static inline u32
hpsa_tag_to_index(u32 tag
)
5544 return tag
>> DIRECT_LOOKUP_SHIFT
;
5548 static inline u32
hpsa_tag_discard_error_bits(struct ctlr_info
*h
, u32 tag
)
5550 #define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
5551 #define HPSA_SIMPLE_ERROR_BITS 0x03
5552 if (unlikely(!(h
->transMethod
& CFGTBL_Trans_Performant
)))
5553 return tag
& ~HPSA_SIMPLE_ERROR_BITS
;
5554 return tag
& ~HPSA_PERF_ERROR_BITS
;
5557 /* process completion of an indexed ("direct lookup") command */
5558 static inline void process_indexed_cmd(struct ctlr_info
*h
,
5562 struct CommandList
*c
;
5564 tag_index
= hpsa_tag_to_index(raw_tag
);
5565 if (!bad_tag(h
, tag_index
, raw_tag
)) {
5566 c
= h
->cmd_pool
+ tag_index
;
5571 /* process completion of a non-indexed command */
5572 static inline void process_nonindexed_cmd(struct ctlr_info
*h
,
5576 struct CommandList
*c
= NULL
;
5577 unsigned long flags
;
5579 tag
= hpsa_tag_discard_error_bits(h
, raw_tag
);
5580 spin_lock_irqsave(&h
->lock
, flags
);
5581 list_for_each_entry(c
, &h
->cmpQ
, list
) {
5582 if ((c
->busaddr
& 0xFFFFFFE0) == (tag
& 0xFFFFFFE0)) {
5583 spin_unlock_irqrestore(&h
->lock
, flags
);
5588 spin_unlock_irqrestore(&h
->lock
, flags
);
5589 bad_tag(h
, h
->nr_cmds
+ 1, raw_tag
);
5592 /* Some controllers, like p400, will give us one interrupt
5593 * after a soft reset, even if we turned interrupts off.
5594 * Only need to check for this in the hpsa_xxx_discard_completions
5597 static int ignore_bogus_interrupt(struct ctlr_info
*h
)
5599 if (likely(!reset_devices
))
5602 if (likely(h
->interrupts_enabled
))
5605 dev_info(&h
->pdev
->dev
, "Received interrupt while interrupts disabled "
5606 "(known firmware bug.) Ignoring.\n");
5612 * Convert &h->q[x] (passed to interrupt handlers) back to h.
5613 * Relies on (h-q[x] == x) being true for x such that
5614 * 0 <= x < MAX_REPLY_QUEUES.
5616 static struct ctlr_info
*queue_to_hba(u8
*queue
)
5618 return container_of((queue
- *queue
), struct ctlr_info
, q
[0]);
5621 static irqreturn_t
hpsa_intx_discard_completions(int irq
, void *queue
)
5623 struct ctlr_info
*h
= queue_to_hba(queue
);
5624 u8 q
= *(u8
*) queue
;
5627 if (ignore_bogus_interrupt(h
))
5630 if (interrupt_not_for_us(h
))
5632 h
->last_intr_timestamp
= get_jiffies_64();
5633 while (interrupt_pending(h
)) {
5634 raw_tag
= get_next_completion(h
, q
);
5635 while (raw_tag
!= FIFO_EMPTY
)
5636 raw_tag
= next_command(h
, q
);
5641 static irqreturn_t
hpsa_msix_discard_completions(int irq
, void *queue
)
5643 struct ctlr_info
*h
= queue_to_hba(queue
);
5645 u8 q
= *(u8
*) queue
;
5647 if (ignore_bogus_interrupt(h
))
5650 h
->last_intr_timestamp
= get_jiffies_64();
5651 raw_tag
= get_next_completion(h
, q
);
5652 while (raw_tag
!= FIFO_EMPTY
)
5653 raw_tag
= next_command(h
, q
);
5657 static irqreturn_t
do_hpsa_intr_intx(int irq
, void *queue
)
5659 struct ctlr_info
*h
= queue_to_hba((u8
*) queue
);
5661 u8 q
= *(u8
*) queue
;
5663 if (interrupt_not_for_us(h
))
5665 h
->last_intr_timestamp
= get_jiffies_64();
5666 while (interrupt_pending(h
)) {
5667 raw_tag
= get_next_completion(h
, q
);
5668 while (raw_tag
!= FIFO_EMPTY
) {
5669 if (likely(hpsa_tag_contains_index(raw_tag
)))
5670 process_indexed_cmd(h
, raw_tag
);
5672 process_nonindexed_cmd(h
, raw_tag
);
5673 raw_tag
= next_command(h
, q
);
5679 static irqreturn_t
do_hpsa_intr_msi(int irq
, void *queue
)
5681 struct ctlr_info
*h
= queue_to_hba(queue
);
5683 u8 q
= *(u8
*) queue
;
5685 h
->last_intr_timestamp
= get_jiffies_64();
5686 raw_tag
= get_next_completion(h
, q
);
5687 while (raw_tag
!= FIFO_EMPTY
) {
5688 if (likely(hpsa_tag_contains_index(raw_tag
)))
5689 process_indexed_cmd(h
, raw_tag
);
5691 process_nonindexed_cmd(h
, raw_tag
);
5692 raw_tag
= next_command(h
, q
);
5697 /* Send a message CDB to the firmware. Careful, this only works
5698 * in simple mode, not performant mode due to the tag lookup.
5699 * We only ever use this immediately after a controller reset.
5701 static int hpsa_message(struct pci_dev
*pdev
, unsigned char opcode
,
5705 struct CommandListHeader CommandHeader
;
5706 struct RequestBlock Request
;
5707 struct ErrDescriptor ErrorDescriptor
;
5709 struct Command
*cmd
;
5710 static const size_t cmd_sz
= sizeof(*cmd
) +
5711 sizeof(cmd
->ErrorDescriptor
);
5713 uint32_t paddr32
, tag
;
5714 void __iomem
*vaddr
;
5717 vaddr
= pci_ioremap_bar(pdev
, 0);
5721 /* The Inbound Post Queue only accepts 32-bit physical addresses for the
5722 * CCISS commands, so they must be allocated from the lower 4GiB of
5725 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32));
5731 cmd
= pci_alloc_consistent(pdev
, cmd_sz
, &paddr64
);
5737 /* This must fit, because of the 32-bit consistent DMA mask. Also,
5738 * although there's no guarantee, we assume that the address is at
5739 * least 4-byte aligned (most likely, it's page-aligned).
5743 cmd
->CommandHeader
.ReplyQueue
= 0;
5744 cmd
->CommandHeader
.SGList
= 0;
5745 cmd
->CommandHeader
.SGTotal
= cpu_to_le16(0);
5746 cmd
->CommandHeader
.tag
= paddr32
;
5747 memset(&cmd
->CommandHeader
.LUN
.LunAddrBytes
, 0, 8);
5749 cmd
->Request
.CDBLen
= 16;
5750 cmd
->Request
.Type
.Type
= TYPE_MSG
;
5751 cmd
->Request
.Type
.Attribute
= ATTR_HEADOFQUEUE
;
5752 cmd
->Request
.Type
.Direction
= XFER_NONE
;
5753 cmd
->Request
.Timeout
= 0; /* Don't time out */
5754 cmd
->Request
.CDB
[0] = opcode
;
5755 cmd
->Request
.CDB
[1] = type
;
5756 memset(&cmd
->Request
.CDB
[2], 0, 14); /* rest of the CDB is reserved */
5757 cmd
->ErrorDescriptor
.Addr
=
5758 cpu_to_le64((paddr32
+ sizeof(*cmd
)));
5759 cmd
->ErrorDescriptor
.Len
= cpu_to_le32(sizeof(struct ErrorInfo
));
5761 writel(paddr32
, vaddr
+ SA5_REQUEST_PORT_OFFSET
);
5763 for (i
= 0; i
< HPSA_MSG_SEND_RETRY_LIMIT
; i
++) {
5764 tag
= readl(vaddr
+ SA5_REPLY_PORT_OFFSET
);
5765 if ((tag
& ~HPSA_SIMPLE_ERROR_BITS
) == paddr32
)
5767 msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS
);
5772 /* we leak the DMA buffer here ... no choice since the controller could
5773 * still complete the command.
5775 if (i
== HPSA_MSG_SEND_RETRY_LIMIT
) {
5776 dev_err(&pdev
->dev
, "controller message %02x:%02x timed out\n",
5781 pci_free_consistent(pdev
, cmd_sz
, cmd
, paddr64
);
5783 if (tag
& HPSA_ERROR_BIT
) {
5784 dev_err(&pdev
->dev
, "controller message %02x:%02x failed\n",
5789 dev_info(&pdev
->dev
, "controller message %02x:%02x succeeded\n",
5794 #define hpsa_noop(p) hpsa_message(p, 3, 0)
5796 static int hpsa_controller_hard_reset(struct pci_dev
*pdev
,
5797 void __iomem
*vaddr
, u32 use_doorbell
)
5803 /* For everything after the P600, the PCI power state method
5804 * of resetting the controller doesn't work, so we have this
5805 * other way using the doorbell register.
5807 dev_info(&pdev
->dev
, "using doorbell to reset controller\n");
5808 writel(use_doorbell
, vaddr
+ SA5_DOORBELL
);
5810 /* PMC hardware guys tell us we need a 10 second delay after
5811 * doorbell reset and before any attempt to talk to the board
5812 * at all to ensure that this actually works and doesn't fall
5813 * over in some weird corner cases.
5816 } else { /* Try to do it the PCI power state way */
5818 /* Quoting from the Open CISS Specification: "The Power
5819 * Management Control/Status Register (CSR) controls the power
5820 * state of the device. The normal operating state is D0,
5821 * CSR=00h. The software off state is D3, CSR=03h. To reset
5822 * the controller, place the interface device in D3 then to D0,
5823 * this causes a secondary PCI reset which will reset the
5826 pos
= pci_find_capability(pdev
, PCI_CAP_ID_PM
);
5829 "hpsa_reset_controller: "
5830 "PCI PM not supported\n");
5833 dev_info(&pdev
->dev
, "using PCI PM to reset controller\n");
5834 /* enter the D3hot power management state */
5835 pci_read_config_word(pdev
, pos
+ PCI_PM_CTRL
, &pmcsr
);
5836 pmcsr
&= ~PCI_PM_CTRL_STATE_MASK
;
5838 pci_write_config_word(pdev
, pos
+ PCI_PM_CTRL
, pmcsr
);
5842 /* enter the D0 power management state */
5843 pmcsr
&= ~PCI_PM_CTRL_STATE_MASK
;
5845 pci_write_config_word(pdev
, pos
+ PCI_PM_CTRL
, pmcsr
);
5848 * The P600 requires a small delay when changing states.
5849 * Otherwise we may think the board did not reset and we bail.
5850 * This for kdump only and is particular to the P600.
5857 static void init_driver_version(char *driver_version
, int len
)
5859 memset(driver_version
, 0, len
);
5860 strncpy(driver_version
, HPSA
" " HPSA_DRIVER_VERSION
, len
- 1);
5863 static int write_driver_ver_to_cfgtable(struct CfgTable __iomem
*cfgtable
)
5865 char *driver_version
;
5866 int i
, size
= sizeof(cfgtable
->driver_version
);
5868 driver_version
= kmalloc(size
, GFP_KERNEL
);
5869 if (!driver_version
)
5872 init_driver_version(driver_version
, size
);
5873 for (i
= 0; i
< size
; i
++)
5874 writeb(driver_version
[i
], &cfgtable
->driver_version
[i
]);
5875 kfree(driver_version
);
5879 static void read_driver_ver_from_cfgtable(struct CfgTable __iomem
*cfgtable
,
5880 unsigned char *driver_ver
)
5884 for (i
= 0; i
< sizeof(cfgtable
->driver_version
); i
++)
5885 driver_ver
[i
] = readb(&cfgtable
->driver_version
[i
]);
5888 static int controller_reset_failed(struct CfgTable __iomem
*cfgtable
)
5891 char *driver_ver
, *old_driver_ver
;
5892 int rc
, size
= sizeof(cfgtable
->driver_version
);
5894 old_driver_ver
= kmalloc(2 * size
, GFP_KERNEL
);
5895 if (!old_driver_ver
)
5897 driver_ver
= old_driver_ver
+ size
;
5899 /* After a reset, the 32 bytes of "driver version" in the cfgtable
5900 * should have been changed, otherwise we know the reset failed.
5902 init_driver_version(old_driver_ver
, size
);
5903 read_driver_ver_from_cfgtable(cfgtable
, driver_ver
);
5904 rc
= !memcmp(driver_ver
, old_driver_ver
, size
);
5905 kfree(old_driver_ver
);
5908 /* This does a hard reset of the controller using PCI power management
5909 * states or the using the doorbell register.
5911 static int hpsa_kdump_hard_reset_controller(struct pci_dev
*pdev
)
5915 u64 cfg_base_addr_index
;
5916 void __iomem
*vaddr
;
5917 unsigned long paddr
;
5918 u32 misc_fw_support
;
5920 struct CfgTable __iomem
*cfgtable
;
5923 u16 command_register
;
5925 /* For controllers as old as the P600, this is very nearly
5928 * pci_save_state(pci_dev);
5929 * pci_set_power_state(pci_dev, PCI_D3hot);
5930 * pci_set_power_state(pci_dev, PCI_D0);
5931 * pci_restore_state(pci_dev);
5933 * For controllers newer than the P600, the pci power state
5934 * method of resetting doesn't work so we have another way
5935 * using the doorbell register.
5938 rc
= hpsa_lookup_board_id(pdev
, &board_id
);
5939 if (rc
< 0 || !ctlr_is_resettable(board_id
)) {
5940 dev_warn(&pdev
->dev
, "Not resetting device.\n");
5944 /* if controller is soft- but not hard resettable... */
5945 if (!ctlr_is_hard_resettable(board_id
))
5946 return -ENOTSUPP
; /* try soft reset later. */
5948 /* Save the PCI command register */
5949 pci_read_config_word(pdev
, 4, &command_register
);
5950 pci_save_state(pdev
);
5952 /* find the first memory BAR, so we can find the cfg table */
5953 rc
= hpsa_pci_find_memory_BAR(pdev
, &paddr
);
5956 vaddr
= remap_pci_mem(paddr
, 0x250);
5960 /* find cfgtable in order to check if reset via doorbell is supported */
5961 rc
= hpsa_find_cfg_addrs(pdev
, vaddr
, &cfg_base_addr
,
5962 &cfg_base_addr_index
, &cfg_offset
);
5965 cfgtable
= remap_pci_mem(pci_resource_start(pdev
,
5966 cfg_base_addr_index
) + cfg_offset
, sizeof(*cfgtable
));
5971 rc
= write_driver_ver_to_cfgtable(cfgtable
);
5975 /* If reset via doorbell register is supported, use that.
5976 * There are two such methods. Favor the newest method.
5978 misc_fw_support
= readl(&cfgtable
->misc_fw_support
);
5979 use_doorbell
= misc_fw_support
& MISC_FW_DOORBELL_RESET2
;
5981 use_doorbell
= DOORBELL_CTLR_RESET2
;
5983 use_doorbell
= misc_fw_support
& MISC_FW_DOORBELL_RESET
;
5985 dev_warn(&pdev
->dev
, "Soft reset not supported. "
5986 "Firmware update is required.\n");
5987 rc
= -ENOTSUPP
; /* try soft reset */
5988 goto unmap_cfgtable
;
5992 rc
= hpsa_controller_hard_reset(pdev
, vaddr
, use_doorbell
);
5994 goto unmap_cfgtable
;
5996 pci_restore_state(pdev
);
5997 pci_write_config_word(pdev
, 4, command_register
);
5999 /* Some devices (notably the HP Smart Array 5i Controller)
6000 need a little pause here */
6001 msleep(HPSA_POST_RESET_PAUSE_MSECS
);
6003 rc
= hpsa_wait_for_board_state(pdev
, vaddr
, BOARD_READY
);
6005 dev_warn(&pdev
->dev
,
6006 "failed waiting for board to become ready "
6007 "after hard reset\n");
6008 goto unmap_cfgtable
;
6011 rc
= controller_reset_failed(vaddr
);
6013 goto unmap_cfgtable
;
6015 dev_warn(&pdev
->dev
, "Unable to successfully reset "
6016 "controller. Will try soft reset.\n");
6019 dev_info(&pdev
->dev
, "board ready after hard reset.\n");
6031 * We cannot read the structure directly, for portability we must use
6033 * This is for debug only.
6035 static void print_cfg_table(struct device
*dev
, struct CfgTable __iomem
*tb
)
6041 dev_info(dev
, "Controller Configuration information\n");
6042 dev_info(dev
, "------------------------------------\n");
6043 for (i
= 0; i
< 4; i
++)
6044 temp_name
[i
] = readb(&(tb
->Signature
[i
]));
6045 temp_name
[4] = '\0';
6046 dev_info(dev
, " Signature = %s\n", temp_name
);
6047 dev_info(dev
, " Spec Number = %d\n", readl(&(tb
->SpecValence
)));
6048 dev_info(dev
, " Transport methods supported = 0x%x\n",
6049 readl(&(tb
->TransportSupport
)));
6050 dev_info(dev
, " Transport methods active = 0x%x\n",
6051 readl(&(tb
->TransportActive
)));
6052 dev_info(dev
, " Requested transport Method = 0x%x\n",
6053 readl(&(tb
->HostWrite
.TransportRequest
)));
6054 dev_info(dev
, " Coalesce Interrupt Delay = 0x%x\n",
6055 readl(&(tb
->HostWrite
.CoalIntDelay
)));
6056 dev_info(dev
, " Coalesce Interrupt Count = 0x%x\n",
6057 readl(&(tb
->HostWrite
.CoalIntCount
)));
6058 dev_info(dev
, " Max outstanding commands = 0x%d\n",
6059 readl(&(tb
->CmdsOutMax
)));
6060 dev_info(dev
, " Bus Types = 0x%x\n", readl(&(tb
->BusTypes
)));
6061 for (i
= 0; i
< 16; i
++)
6062 temp_name
[i
] = readb(&(tb
->ServerName
[i
]));
6063 temp_name
[16] = '\0';
6064 dev_info(dev
, " Server Name = %s\n", temp_name
);
6065 dev_info(dev
, " Heartbeat Counter = 0x%x\n\n\n",
6066 readl(&(tb
->HeartBeat
)));
6067 #endif /* HPSA_DEBUG */
6070 static int find_PCI_BAR_index(struct pci_dev
*pdev
, unsigned long pci_bar_addr
)
6072 int i
, offset
, mem_type
, bar_type
;
6074 if (pci_bar_addr
== PCI_BASE_ADDRESS_0
) /* looking for BAR zero? */
6077 for (i
= 0; i
< DEVICE_COUNT_RESOURCE
; i
++) {
6078 bar_type
= pci_resource_flags(pdev
, i
) & PCI_BASE_ADDRESS_SPACE
;
6079 if (bar_type
== PCI_BASE_ADDRESS_SPACE_IO
)
6082 mem_type
= pci_resource_flags(pdev
, i
) &
6083 PCI_BASE_ADDRESS_MEM_TYPE_MASK
;
6085 case PCI_BASE_ADDRESS_MEM_TYPE_32
:
6086 case PCI_BASE_ADDRESS_MEM_TYPE_1M
:
6087 offset
+= 4; /* 32 bit */
6089 case PCI_BASE_ADDRESS_MEM_TYPE_64
:
6092 default: /* reserved in PCI 2.2 */
6093 dev_warn(&pdev
->dev
,
6094 "base address is invalid\n");
6099 if (offset
== pci_bar_addr
- PCI_BASE_ADDRESS_0
)
6105 /* If MSI/MSI-X is supported by the kernel we will try to enable it on
6106 * controllers that are capable. If not, we use IO-APIC mode.
6109 static void hpsa_interrupt_mode(struct ctlr_info
*h
)
6111 #ifdef CONFIG_PCI_MSI
6113 struct msix_entry hpsa_msix_entries
[MAX_REPLY_QUEUES
];
6115 for (i
= 0; i
< MAX_REPLY_QUEUES
; i
++) {
6116 hpsa_msix_entries
[i
].vector
= 0;
6117 hpsa_msix_entries
[i
].entry
= i
;
6120 /* Some boards advertise MSI but don't really support it */
6121 if ((h
->board_id
== 0x40700E11) || (h
->board_id
== 0x40800E11) ||
6122 (h
->board_id
== 0x40820E11) || (h
->board_id
== 0x40830E11))
6123 goto default_int_mode
;
6124 if (pci_find_capability(h
->pdev
, PCI_CAP_ID_MSIX
)) {
6125 dev_info(&h
->pdev
->dev
, "MSIX\n");
6126 h
->msix_vector
= MAX_REPLY_QUEUES
;
6127 if (h
->msix_vector
> num_online_cpus())
6128 h
->msix_vector
= num_online_cpus();
6129 err
= pci_enable_msix_range(h
->pdev
, hpsa_msix_entries
,
6132 dev_warn(&h
->pdev
->dev
, "MSI-X init failed %d\n", err
);
6134 goto single_msi_mode
;
6135 } else if (err
< h
->msix_vector
) {
6136 dev_warn(&h
->pdev
->dev
, "only %d MSI-X vectors "
6137 "available\n", err
);
6139 h
->msix_vector
= err
;
6140 for (i
= 0; i
< h
->msix_vector
; i
++)
6141 h
->intr
[i
] = hpsa_msix_entries
[i
].vector
;
6145 if (pci_find_capability(h
->pdev
, PCI_CAP_ID_MSI
)) {
6146 dev_info(&h
->pdev
->dev
, "MSI\n");
6147 if (!pci_enable_msi(h
->pdev
))
6150 dev_warn(&h
->pdev
->dev
, "MSI init failed\n");
6153 #endif /* CONFIG_PCI_MSI */
6154 /* if we get here we're going to use the default interrupt mode */
6155 h
->intr
[h
->intr_mode
] = h
->pdev
->irq
;
6158 static int hpsa_lookup_board_id(struct pci_dev
*pdev
, u32
*board_id
)
6161 u32 subsystem_vendor_id
, subsystem_device_id
;
6163 subsystem_vendor_id
= pdev
->subsystem_vendor
;
6164 subsystem_device_id
= pdev
->subsystem_device
;
6165 *board_id
= ((subsystem_device_id
<< 16) & 0xffff0000) |
6166 subsystem_vendor_id
;
6168 for (i
= 0; i
< ARRAY_SIZE(products
); i
++)
6169 if (*board_id
== products
[i
].board_id
)
6172 if ((subsystem_vendor_id
!= PCI_VENDOR_ID_HP
&&
6173 subsystem_vendor_id
!= PCI_VENDOR_ID_COMPAQ
) ||
6175 dev_warn(&pdev
->dev
, "unrecognized board ID: "
6176 "0x%08x, ignoring.\n", *board_id
);
6179 return ARRAY_SIZE(products
) - 1; /* generic unknown smart array */
6182 static int hpsa_pci_find_memory_BAR(struct pci_dev
*pdev
,
6183 unsigned long *memory_bar
)
6187 for (i
= 0; i
< DEVICE_COUNT_RESOURCE
; i
++)
6188 if (pci_resource_flags(pdev
, i
) & IORESOURCE_MEM
) {
6189 /* addressing mode bits already removed */
6190 *memory_bar
= pci_resource_start(pdev
, i
);
6191 dev_dbg(&pdev
->dev
, "memory BAR = %lx\n",
6195 dev_warn(&pdev
->dev
, "no memory BAR found\n");
6199 static int hpsa_wait_for_board_state(struct pci_dev
*pdev
, void __iomem
*vaddr
,
6205 iterations
= HPSA_BOARD_READY_ITERATIONS
;
6207 iterations
= HPSA_BOARD_NOT_READY_ITERATIONS
;
6209 for (i
= 0; i
< iterations
; i
++) {
6210 scratchpad
= readl(vaddr
+ SA5_SCRATCHPAD_OFFSET
);
6211 if (wait_for_ready
) {
6212 if (scratchpad
== HPSA_FIRMWARE_READY
)
6215 if (scratchpad
!= HPSA_FIRMWARE_READY
)
6218 msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS
);
6220 dev_warn(&pdev
->dev
, "board not ready, timed out.\n");
6224 static int hpsa_find_cfg_addrs(struct pci_dev
*pdev
, void __iomem
*vaddr
,
6225 u32
*cfg_base_addr
, u64
*cfg_base_addr_index
,
6228 *cfg_base_addr
= readl(vaddr
+ SA5_CTCFG_OFFSET
);
6229 *cfg_offset
= readl(vaddr
+ SA5_CTMEM_OFFSET
);
6230 *cfg_base_addr
&= (u32
) 0x0000ffff;
6231 *cfg_base_addr_index
= find_PCI_BAR_index(pdev
, *cfg_base_addr
);
6232 if (*cfg_base_addr_index
== -1) {
6233 dev_warn(&pdev
->dev
, "cannot find cfg_base_addr_index\n");
6239 static int hpsa_find_cfgtables(struct ctlr_info
*h
)
6243 u64 cfg_base_addr_index
;
6247 rc
= hpsa_find_cfg_addrs(h
->pdev
, h
->vaddr
, &cfg_base_addr
,
6248 &cfg_base_addr_index
, &cfg_offset
);
6251 h
->cfgtable
= remap_pci_mem(pci_resource_start(h
->pdev
,
6252 cfg_base_addr_index
) + cfg_offset
, sizeof(*h
->cfgtable
));
6255 rc
= write_driver_ver_to_cfgtable(h
->cfgtable
);
6258 /* Find performant mode table. */
6259 trans_offset
= readl(&h
->cfgtable
->TransMethodOffset
);
6260 h
->transtable
= remap_pci_mem(pci_resource_start(h
->pdev
,
6261 cfg_base_addr_index
)+cfg_offset
+trans_offset
,
6262 sizeof(*h
->transtable
));
6268 static void hpsa_get_max_perf_mode_cmds(struct ctlr_info
*h
)
6270 h
->max_commands
= readl(&(h
->cfgtable
->MaxPerformantModeCommands
));
6272 /* Limit commands in memory limited kdump scenario. */
6273 if (reset_devices
&& h
->max_commands
> 32)
6274 h
->max_commands
= 32;
6276 if (h
->max_commands
< 16) {
6277 dev_warn(&h
->pdev
->dev
, "Controller reports "
6278 "max supported commands of %d, an obvious lie. "
6279 "Using 16. Ensure that firmware is up to date.\n",
6281 h
->max_commands
= 16;
6285 /* Interrogate the hardware for some limits:
6286 * max commands, max SG elements without chaining, and with chaining,
6287 * SG chain block size, etc.
6289 static void hpsa_find_board_params(struct ctlr_info
*h
)
6291 hpsa_get_max_perf_mode_cmds(h
);
6292 h
->nr_cmds
= h
->max_commands
- 4; /* Allow room for some ioctls */
6293 h
->maxsgentries
= readl(&(h
->cfgtable
->MaxScatterGatherElements
));
6294 h
->fw_support
= readl(&(h
->cfgtable
->misc_fw_support
));
6296 * Limit in-command s/g elements to 32 save dma'able memory.
6297 * Howvever spec says if 0, use 31
6299 h
->max_cmd_sg_entries
= 31;
6300 if (h
->maxsgentries
> 512) {
6301 h
->max_cmd_sg_entries
= 32;
6302 h
->chainsize
= h
->maxsgentries
- h
->max_cmd_sg_entries
;
6303 h
->maxsgentries
--; /* save one for chain pointer */
6306 h
->maxsgentries
= 31; /* default to traditional values */
6309 /* Find out what task management functions are supported and cache */
6310 h
->TMFSupportFlags
= readl(&(h
->cfgtable
->TMFSupportFlags
));
6311 if (!(HPSATMF_PHYS_TASK_ABORT
& h
->TMFSupportFlags
))
6312 dev_warn(&h
->pdev
->dev
, "Physical aborts not supported\n");
6313 if (!(HPSATMF_LOG_TASK_ABORT
& h
->TMFSupportFlags
))
6314 dev_warn(&h
->pdev
->dev
, "Logical aborts not supported\n");
6317 static inline bool hpsa_CISS_signature_present(struct ctlr_info
*h
)
6319 if (!check_signature(h
->cfgtable
->Signature
, "CISS", 4)) {
6320 dev_warn(&h
->pdev
->dev
, "not a valid CISS config table\n");
6326 static inline void hpsa_set_driver_support_bits(struct ctlr_info
*h
)
6330 driver_support
= readl(&(h
->cfgtable
->driver_support
));
6331 /* Need to enable prefetch in the SCSI core for 6400 in x86 */
6333 driver_support
|= ENABLE_SCSI_PREFETCH
;
6335 driver_support
|= ENABLE_UNIT_ATTN
;
6336 writel(driver_support
, &(h
->cfgtable
->driver_support
));
6339 /* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result
6340 * in a prefetch beyond physical memory.
6342 static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info
*h
)
6346 if (h
->board_id
!= 0x3225103C)
6348 dma_prefetch
= readl(h
->vaddr
+ I2O_DMA1_CFG
);
6349 dma_prefetch
|= 0x8000;
6350 writel(dma_prefetch
, h
->vaddr
+ I2O_DMA1_CFG
);
6353 static void hpsa_wait_for_clear_event_notify_ack(struct ctlr_info
*h
)
6357 unsigned long flags
;
6358 /* wait until the clear_event_notify bit 6 is cleared by controller. */
6359 for (i
= 0; i
< MAX_CONFIG_WAIT
; i
++) {
6360 spin_lock_irqsave(&h
->lock
, flags
);
6361 doorbell_value
= readl(h
->vaddr
+ SA5_DOORBELL
);
6362 spin_unlock_irqrestore(&h
->lock
, flags
);
6363 if (!(doorbell_value
& DOORBELL_CLEAR_EVENTS
))
6365 /* delay and try again */
6370 static void hpsa_wait_for_mode_change_ack(struct ctlr_info
*h
)
6374 unsigned long flags
;
6376 /* under certain very rare conditions, this can take awhile.
6377 * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
6378 * as we enter this code.)
6380 for (i
= 0; i
< MAX_CONFIG_WAIT
; i
++) {
6381 spin_lock_irqsave(&h
->lock
, flags
);
6382 doorbell_value
= readl(h
->vaddr
+ SA5_DOORBELL
);
6383 spin_unlock_irqrestore(&h
->lock
, flags
);
6384 if (!(doorbell_value
& CFGTBL_ChangeReq
))
6386 /* delay and try again */
6387 usleep_range(10000, 20000);
6391 static int hpsa_enter_simple_mode(struct ctlr_info
*h
)
6395 trans_support
= readl(&(h
->cfgtable
->TransportSupport
));
6396 if (!(trans_support
& SIMPLE_MODE
))
6399 h
->max_commands
= readl(&(h
->cfgtable
->CmdsOutMax
));
6401 /* Update the field, and then ring the doorbell */
6402 writel(CFGTBL_Trans_Simple
, &(h
->cfgtable
->HostWrite
.TransportRequest
));
6403 writel(0, &h
->cfgtable
->HostWrite
.command_pool_addr_hi
);
6404 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
6405 hpsa_wait_for_mode_change_ack(h
);
6406 print_cfg_table(&h
->pdev
->dev
, h
->cfgtable
);
6407 if (!(readl(&(h
->cfgtable
->TransportActive
)) & CFGTBL_Trans_Simple
))
6409 h
->transMethod
= CFGTBL_Trans_Simple
;
6412 dev_warn(&h
->pdev
->dev
, "unable to get board into simple mode\n");
6416 static int hpsa_pci_init(struct ctlr_info
*h
)
6418 int prod_index
, err
;
6420 prod_index
= hpsa_lookup_board_id(h
->pdev
, &h
->board_id
);
6423 h
->product_name
= products
[prod_index
].product_name
;
6424 h
->access
= *(products
[prod_index
].access
);
6426 pci_disable_link_state(h
->pdev
, PCIE_LINK_STATE_L0S
|
6427 PCIE_LINK_STATE_L1
| PCIE_LINK_STATE_CLKPM
);
6429 err
= pci_enable_device(h
->pdev
);
6431 dev_warn(&h
->pdev
->dev
, "unable to enable PCI device\n");
6435 /* Enable bus mastering (pci_disable_device may disable this) */
6436 pci_set_master(h
->pdev
);
6438 err
= pci_request_regions(h
->pdev
, HPSA
);
6440 dev_err(&h
->pdev
->dev
,
6441 "cannot obtain PCI resources, aborting\n");
6444 hpsa_interrupt_mode(h
);
6445 err
= hpsa_pci_find_memory_BAR(h
->pdev
, &h
->paddr
);
6447 goto err_out_free_res
;
6448 h
->vaddr
= remap_pci_mem(h
->paddr
, 0x250);
6451 goto err_out_free_res
;
6453 err
= hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_READY
);
6455 goto err_out_free_res
;
6456 err
= hpsa_find_cfgtables(h
);
6458 goto err_out_free_res
;
6459 hpsa_find_board_params(h
);
6461 if (!hpsa_CISS_signature_present(h
)) {
6463 goto err_out_free_res
;
6465 hpsa_set_driver_support_bits(h
);
6466 hpsa_p600_dma_prefetch_quirk(h
);
6467 err
= hpsa_enter_simple_mode(h
);
6469 goto err_out_free_res
;
6474 iounmap(h
->transtable
);
6476 iounmap(h
->cfgtable
);
6479 pci_disable_device(h
->pdev
);
6480 pci_release_regions(h
->pdev
);
6484 static void hpsa_hba_inquiry(struct ctlr_info
*h
)
6488 #define HBA_INQUIRY_BYTE_COUNT 64
6489 h
->hba_inquiry_data
= kmalloc(HBA_INQUIRY_BYTE_COUNT
, GFP_KERNEL
);
6490 if (!h
->hba_inquiry_data
)
6492 rc
= hpsa_scsi_do_inquiry(h
, RAID_CTLR_LUNID
, 0,
6493 h
->hba_inquiry_data
, HBA_INQUIRY_BYTE_COUNT
);
6495 kfree(h
->hba_inquiry_data
);
6496 h
->hba_inquiry_data
= NULL
;
6500 static int hpsa_init_reset_devices(struct pci_dev
*pdev
)
6507 /* kdump kernel is loading, we don't know in which state is
6508 * the pci interface. The dev->enable_cnt is equal zero
6509 * so we call enable+disable, wait a while and switch it on.
6511 rc
= pci_enable_device(pdev
);
6513 dev_warn(&pdev
->dev
, "Failed to enable PCI device\n");
6516 pci_disable_device(pdev
);
6517 msleep(260); /* a randomly chosen number */
6518 rc
= pci_enable_device(pdev
);
6520 dev_warn(&pdev
->dev
, "failed to enable device.\n");
6523 pci_set_master(pdev
);
6524 /* Reset the controller with a PCI power-cycle or via doorbell */
6525 rc
= hpsa_kdump_hard_reset_controller(pdev
);
6527 /* -ENOTSUPP here means we cannot reset the controller
6528 * but it's already (and still) up and running in
6529 * "performant mode". Or, it might be 640x, which can't reset
6530 * due to concerns about shared bbwc between 6402/6404 pair.
6533 if (rc
!= -ENOTSUPP
) /* just try to do the kdump anyhow. */
6538 /* Now try to get the controller to respond to a no-op */
6539 dev_warn(&pdev
->dev
, "Waiting for controller to respond to no-op\n");
6540 for (i
= 0; i
< HPSA_POST_RESET_NOOP_RETRIES
; i
++) {
6541 if (hpsa_noop(pdev
) == 0)
6544 dev_warn(&pdev
->dev
, "no-op failed%s\n",
6545 (i
< 11 ? "; re-trying" : ""));
6550 pci_disable_device(pdev
);
6554 static int hpsa_allocate_cmd_pool(struct ctlr_info
*h
)
6556 h
->cmd_pool_bits
= kzalloc(
6557 DIV_ROUND_UP(h
->nr_cmds
, BITS_PER_LONG
) *
6558 sizeof(unsigned long), GFP_KERNEL
);
6559 h
->cmd_pool
= pci_alloc_consistent(h
->pdev
,
6560 h
->nr_cmds
* sizeof(*h
->cmd_pool
),
6561 &(h
->cmd_pool_dhandle
));
6562 h
->errinfo_pool
= pci_alloc_consistent(h
->pdev
,
6563 h
->nr_cmds
* sizeof(*h
->errinfo_pool
),
6564 &(h
->errinfo_pool_dhandle
));
6565 if ((h
->cmd_pool_bits
== NULL
)
6566 || (h
->cmd_pool
== NULL
)
6567 || (h
->errinfo_pool
== NULL
)) {
6568 dev_err(&h
->pdev
->dev
, "out of memory in %s", __func__
);
6574 static void hpsa_free_cmd_pool(struct ctlr_info
*h
)
6576 kfree(h
->cmd_pool_bits
);
6578 pci_free_consistent(h
->pdev
,
6579 h
->nr_cmds
* sizeof(struct CommandList
),
6580 h
->cmd_pool
, h
->cmd_pool_dhandle
);
6581 if (h
->ioaccel2_cmd_pool
)
6582 pci_free_consistent(h
->pdev
,
6583 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
6584 h
->ioaccel2_cmd_pool
, h
->ioaccel2_cmd_pool_dhandle
);
6585 if (h
->errinfo_pool
)
6586 pci_free_consistent(h
->pdev
,
6587 h
->nr_cmds
* sizeof(struct ErrorInfo
),
6589 h
->errinfo_pool_dhandle
);
6590 if (h
->ioaccel_cmd_pool
)
6591 pci_free_consistent(h
->pdev
,
6592 h
->nr_cmds
* sizeof(struct io_accel1_cmd
),
6593 h
->ioaccel_cmd_pool
, h
->ioaccel_cmd_pool_dhandle
);
6596 static void hpsa_irq_affinity_hints(struct ctlr_info
*h
)
6600 cpu
= cpumask_first(cpu_online_mask
);
6601 for (i
= 0; i
< h
->msix_vector
; i
++) {
6602 rc
= irq_set_affinity_hint(h
->intr
[i
], get_cpu_mask(cpu
));
6603 cpu
= cpumask_next(cpu
, cpu_online_mask
);
6607 static int hpsa_request_irq(struct ctlr_info
*h
,
6608 irqreturn_t (*msixhandler
)(int, void *),
6609 irqreturn_t (*intxhandler
)(int, void *))
6614 * initialize h->q[x] = x so that interrupt handlers know which
6617 for (i
= 0; i
< MAX_REPLY_QUEUES
; i
++)
6620 if (h
->intr_mode
== PERF_MODE_INT
&& h
->msix_vector
> 0) {
6621 /* If performant mode and MSI-X, use multiple reply queues */
6622 for (i
= 0; i
< h
->msix_vector
; i
++)
6623 rc
= request_irq(h
->intr
[i
], msixhandler
,
6626 hpsa_irq_affinity_hints(h
);
6628 /* Use single reply pool */
6629 if (h
->msix_vector
> 0 || h
->msi_vector
) {
6630 rc
= request_irq(h
->intr
[h
->intr_mode
],
6631 msixhandler
, 0, h
->devname
,
6632 &h
->q
[h
->intr_mode
]);
6634 rc
= request_irq(h
->intr
[h
->intr_mode
],
6635 intxhandler
, IRQF_SHARED
, h
->devname
,
6636 &h
->q
[h
->intr_mode
]);
6640 dev_err(&h
->pdev
->dev
, "unable to get irq %d for %s\n",
6641 h
->intr
[h
->intr_mode
], h
->devname
);
6647 static int hpsa_kdump_soft_reset(struct ctlr_info
*h
)
6649 if (hpsa_send_host_reset(h
, RAID_CTLR_LUNID
,
6650 HPSA_RESET_TYPE_CONTROLLER
)) {
6651 dev_warn(&h
->pdev
->dev
, "Resetting array controller failed.\n");
6655 dev_info(&h
->pdev
->dev
, "Waiting for board to soft reset.\n");
6656 if (hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_NOT_READY
)) {
6657 dev_warn(&h
->pdev
->dev
, "Soft reset had no effect.\n");
6661 dev_info(&h
->pdev
->dev
, "Board reset, awaiting READY status.\n");
6662 if (hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_READY
)) {
6663 dev_warn(&h
->pdev
->dev
, "Board failed to become ready "
6664 "after soft reset.\n");
6671 static void free_irqs(struct ctlr_info
*h
)
6675 if (!h
->msix_vector
|| h
->intr_mode
!= PERF_MODE_INT
) {
6676 /* Single reply queue, only one irq to free */
6678 irq_set_affinity_hint(h
->intr
[i
], NULL
);
6679 free_irq(h
->intr
[i
], &h
->q
[i
]);
6683 for (i
= 0; i
< h
->msix_vector
; i
++) {
6684 irq_set_affinity_hint(h
->intr
[i
], NULL
);
6685 free_irq(h
->intr
[i
], &h
->q
[i
]);
6689 static void hpsa_free_irqs_and_disable_msix(struct ctlr_info
*h
)
6692 #ifdef CONFIG_PCI_MSI
6693 if (h
->msix_vector
) {
6694 if (h
->pdev
->msix_enabled
)
6695 pci_disable_msix(h
->pdev
);
6696 } else if (h
->msi_vector
) {
6697 if (h
->pdev
->msi_enabled
)
6698 pci_disable_msi(h
->pdev
);
6700 #endif /* CONFIG_PCI_MSI */
6703 static void hpsa_free_reply_queues(struct ctlr_info
*h
)
6707 for (i
= 0; i
< h
->nreply_queues
; i
++) {
6708 if (!h
->reply_queue
[i
].head
)
6710 pci_free_consistent(h
->pdev
, h
->reply_queue_size
,
6711 h
->reply_queue
[i
].head
, h
->reply_queue
[i
].busaddr
);
6712 h
->reply_queue
[i
].head
= NULL
;
6713 h
->reply_queue
[i
].busaddr
= 0;
6717 static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info
*h
)
6719 hpsa_free_irqs_and_disable_msix(h
);
6720 hpsa_free_sg_chain_blocks(h
);
6721 hpsa_free_cmd_pool(h
);
6722 kfree(h
->ioaccel1_blockFetchTable
);
6723 kfree(h
->blockFetchTable
);
6724 hpsa_free_reply_queues(h
);
6728 iounmap(h
->transtable
);
6730 iounmap(h
->cfgtable
);
6731 pci_disable_device(h
->pdev
);
6732 pci_release_regions(h
->pdev
);
6736 /* Called when controller lockup detected. */
6737 static void fail_all_cmds_on_list(struct ctlr_info
*h
, struct list_head
*list
)
6739 struct CommandList
*c
= NULL
;
6741 assert_spin_locked(&h
->lock
);
6742 /* Mark all outstanding commands as failed and complete them. */
6743 while (!list_empty(list
)) {
6744 c
= list_entry(list
->next
, struct CommandList
, list
);
6745 c
->err_info
->CommandStatus
= CMD_HARDWARE_ERR
;
6750 static void set_lockup_detected_for_all_cpus(struct ctlr_info
*h
, u32 value
)
6754 cpu
= cpumask_first(cpu_online_mask
);
6755 for (i
= 0; i
< num_online_cpus(); i
++) {
6756 u32
*lockup_detected
;
6757 lockup_detected
= per_cpu_ptr(h
->lockup_detected
, cpu
);
6758 *lockup_detected
= value
;
6759 cpu
= cpumask_next(cpu
, cpu_online_mask
);
6761 wmb(); /* be sure the per-cpu variables are out to memory */
6764 static void controller_lockup_detected(struct ctlr_info
*h
)
6766 unsigned long flags
;
6767 u32 lockup_detected
;
6769 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
6770 spin_lock_irqsave(&h
->lock
, flags
);
6771 lockup_detected
= readl(h
->vaddr
+ SA5_SCRATCHPAD_OFFSET
);
6772 if (!lockup_detected
) {
6773 /* no heartbeat, but controller gave us a zero. */
6774 dev_warn(&h
->pdev
->dev
,
6775 "lockup detected but scratchpad register is zero\n");
6776 lockup_detected
= 0xffffffff;
6778 set_lockup_detected_for_all_cpus(h
, lockup_detected
);
6779 spin_unlock_irqrestore(&h
->lock
, flags
);
6780 dev_warn(&h
->pdev
->dev
, "Controller lockup detected: 0x%08x\n",
6782 pci_disable_device(h
->pdev
);
6783 spin_lock_irqsave(&h
->lock
, flags
);
6784 fail_all_cmds_on_list(h
, &h
->cmpQ
);
6785 fail_all_cmds_on_list(h
, &h
->reqQ
);
6786 spin_unlock_irqrestore(&h
->lock
, flags
);
6789 static void detect_controller_lockup(struct ctlr_info
*h
)
6793 unsigned long flags
;
6795 now
= get_jiffies_64();
6796 /* If we've received an interrupt recently, we're ok. */
6797 if (time_after64(h
->last_intr_timestamp
+
6798 (h
->heartbeat_sample_interval
), now
))
6802 * If we've already checked the heartbeat recently, we're ok.
6803 * This could happen if someone sends us a signal. We
6804 * otherwise don't care about signals in this thread.
6806 if (time_after64(h
->last_heartbeat_timestamp
+
6807 (h
->heartbeat_sample_interval
), now
))
6810 /* If heartbeat has not changed since we last looked, we're not ok. */
6811 spin_lock_irqsave(&h
->lock
, flags
);
6812 heartbeat
= readl(&h
->cfgtable
->HeartBeat
);
6813 spin_unlock_irqrestore(&h
->lock
, flags
);
6814 if (h
->last_heartbeat
== heartbeat
) {
6815 controller_lockup_detected(h
);
6820 h
->last_heartbeat
= heartbeat
;
6821 h
->last_heartbeat_timestamp
= now
;
6824 static void hpsa_ack_ctlr_events(struct ctlr_info
*h
)
6829 /* Clear the driver-requested rescan flag */
6830 h
->drv_req_rescan
= 0;
6832 /* Ask the controller to clear the events we're handling. */
6833 if ((h
->transMethod
& (CFGTBL_Trans_io_accel1
6834 | CFGTBL_Trans_io_accel2
)) &&
6835 (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE
||
6836 h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE
)) {
6838 if (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE
)
6839 event_type
= "state change";
6840 if (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE
)
6841 event_type
= "configuration change";
6842 /* Stop sending new RAID offload reqs via the IO accelerator */
6843 scsi_block_requests(h
->scsi_host
);
6844 for (i
= 0; i
< h
->ndevices
; i
++)
6845 h
->dev
[i
]->offload_enabled
= 0;
6846 hpsa_drain_accel_commands(h
);
6847 /* Set 'accelerator path config change' bit */
6848 dev_warn(&h
->pdev
->dev
,
6849 "Acknowledging event: 0x%08x (HP SSD Smart Path %s)\n",
6850 h
->events
, event_type
);
6851 writel(h
->events
, &(h
->cfgtable
->clear_event_notify
));
6852 /* Set the "clear event notify field update" bit 6 */
6853 writel(DOORBELL_CLEAR_EVENTS
, h
->vaddr
+ SA5_DOORBELL
);
6854 /* Wait until ctlr clears 'clear event notify field', bit 6 */
6855 hpsa_wait_for_clear_event_notify_ack(h
);
6856 scsi_unblock_requests(h
->scsi_host
);
6858 /* Acknowledge controller notification events. */
6859 writel(h
->events
, &(h
->cfgtable
->clear_event_notify
));
6860 writel(DOORBELL_CLEAR_EVENTS
, h
->vaddr
+ SA5_DOORBELL
);
6861 hpsa_wait_for_clear_event_notify_ack(h
);
6863 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
6864 hpsa_wait_for_mode_change_ack(h
);
6870 /* Check a register on the controller to see if there are configuration
6871 * changes (added/changed/removed logical drives, etc.) which mean that
6872 * we should rescan the controller for devices.
6873 * Also check flag for driver-initiated rescan.
6875 static int hpsa_ctlr_needs_rescan(struct ctlr_info
*h
)
6877 if (h
->drv_req_rescan
)
6880 if (!(h
->fw_support
& MISC_FW_EVENT_NOTIFY
))
6883 h
->events
= readl(&(h
->cfgtable
->event_notify
));
6884 return h
->events
& RESCAN_REQUIRED_EVENT_BITS
;
6888 * Check if any of the offline devices have become ready
6890 static int hpsa_offline_devices_ready(struct ctlr_info
*h
)
6892 unsigned long flags
;
6893 struct offline_device_entry
*d
;
6894 struct list_head
*this, *tmp
;
6896 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6897 list_for_each_safe(this, tmp
, &h
->offline_device_list
) {
6898 d
= list_entry(this, struct offline_device_entry
,
6900 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6901 if (!hpsa_volume_offline(h
, d
->scsi3addr
)) {
6902 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6903 list_del(&d
->offline_list
);
6904 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6907 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6909 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6914 static void hpsa_monitor_ctlr_worker(struct work_struct
*work
)
6916 unsigned long flags
;
6917 struct ctlr_info
*h
= container_of(to_delayed_work(work
),
6918 struct ctlr_info
, monitor_ctlr_work
);
6919 detect_controller_lockup(h
);
6920 if (lockup_detected(h
))
6923 if (hpsa_ctlr_needs_rescan(h
) || hpsa_offline_devices_ready(h
)) {
6924 scsi_host_get(h
->scsi_host
);
6925 h
->drv_req_rescan
= 0;
6926 hpsa_ack_ctlr_events(h
);
6927 hpsa_scan_start(h
->scsi_host
);
6928 scsi_host_put(h
->scsi_host
);
6931 spin_lock_irqsave(&h
->lock
, flags
);
6932 if (h
->remove_in_progress
) {
6933 spin_unlock_irqrestore(&h
->lock
, flags
);
6936 schedule_delayed_work(&h
->monitor_ctlr_work
,
6937 h
->heartbeat_sample_interval
);
6938 spin_unlock_irqrestore(&h
->lock
, flags
);
6941 static int hpsa_init_one(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
6944 struct ctlr_info
*h
;
6945 int try_soft_reset
= 0;
6946 unsigned long flags
;
6948 if (number_of_controllers
== 0)
6949 printk(KERN_INFO DRIVER_NAME
"\n");
6951 rc
= hpsa_init_reset_devices(pdev
);
6953 if (rc
!= -ENOTSUPP
)
6955 /* If the reset fails in a particular way (it has no way to do
6956 * a proper hard reset, so returns -ENOTSUPP) we can try to do
6957 * a soft reset once we get the controller configured up to the
6958 * point that it can accept a command.
6964 reinit_after_soft_reset
:
6966 /* Command structures must be aligned on a 32-byte boundary because
6967 * the 5 lower bits of the address are used by the hardware. and by
6968 * the driver. See comments in hpsa.h for more info.
6970 BUILD_BUG_ON(sizeof(struct CommandList
) % COMMANDLIST_ALIGNMENT
);
6971 h
= kzalloc(sizeof(*h
), GFP_KERNEL
);
6976 h
->intr_mode
= hpsa_simple_mode
? SIMPLE_MODE_INT
: PERF_MODE_INT
;
6977 INIT_LIST_HEAD(&h
->cmpQ
);
6978 INIT_LIST_HEAD(&h
->reqQ
);
6979 INIT_LIST_HEAD(&h
->offline_device_list
);
6980 spin_lock_init(&h
->lock
);
6981 spin_lock_init(&h
->offline_device_lock
);
6982 spin_lock_init(&h
->scan_lock
);
6983 spin_lock_init(&h
->passthru_count_lock
);
6985 /* Allocate and clear per-cpu variable lockup_detected */
6986 h
->lockup_detected
= alloc_percpu(u32
);
6987 if (!h
->lockup_detected
) {
6991 set_lockup_detected_for_all_cpus(h
, 0);
6993 rc
= hpsa_pci_init(h
);
6997 sprintf(h
->devname
, HPSA
"%d", number_of_controllers
);
6998 h
->ctlr
= number_of_controllers
;
6999 number_of_controllers
++;
7001 /* configure PCI DMA stuff */
7002 rc
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
7006 rc
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
7010 dev_err(&pdev
->dev
, "no suitable DMA available\n");
7015 /* make sure the board interrupts are off */
7016 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7018 if (hpsa_request_irq(h
, do_hpsa_intr_msi
, do_hpsa_intr_intx
))
7020 dev_info(&pdev
->dev
, "%s: <0x%x> at IRQ %d%s using DAC\n",
7021 h
->devname
, pdev
->device
,
7022 h
->intr
[h
->intr_mode
], dac
? "" : " not");
7023 if (hpsa_allocate_cmd_pool(h
))
7025 if (hpsa_allocate_sg_chain_blocks(h
))
7027 init_waitqueue_head(&h
->scan_wait_queue
);
7028 h
->scan_finished
= 1; /* no scan currently in progress */
7030 pci_set_drvdata(pdev
, h
);
7032 h
->hba_mode_enabled
= 0;
7033 h
->scsi_host
= NULL
;
7034 spin_lock_init(&h
->devlock
);
7035 hpsa_put_ctlr_into_performant_mode(h
);
7037 /* At this point, the controller is ready to take commands.
7038 * Now, if reset_devices and the hard reset didn't work, try
7039 * the soft reset and see if that works.
7041 if (try_soft_reset
) {
7043 /* This is kind of gross. We may or may not get a completion
7044 * from the soft reset command, and if we do, then the value
7045 * from the fifo may or may not be valid. So, we wait 10 secs
7046 * after the reset throwing away any completions we get during
7047 * that time. Unregister the interrupt handler and register
7048 * fake ones to scoop up any residual completions.
7050 spin_lock_irqsave(&h
->lock
, flags
);
7051 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7052 spin_unlock_irqrestore(&h
->lock
, flags
);
7054 rc
= hpsa_request_irq(h
, hpsa_msix_discard_completions
,
7055 hpsa_intx_discard_completions
);
7057 dev_warn(&h
->pdev
->dev
, "Failed to request_irq after "
7062 rc
= hpsa_kdump_soft_reset(h
);
7064 /* Neither hard nor soft reset worked, we're hosed. */
7067 dev_info(&h
->pdev
->dev
, "Board READY.\n");
7068 dev_info(&h
->pdev
->dev
,
7069 "Waiting for stale completions to drain.\n");
7070 h
->access
.set_intr_mask(h
, HPSA_INTR_ON
);
7072 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7074 rc
= controller_reset_failed(h
->cfgtable
);
7076 dev_info(&h
->pdev
->dev
,
7077 "Soft reset appears to have failed.\n");
7079 /* since the controller's reset, we have to go back and re-init
7080 * everything. Easiest to just forget what we've done and do it
7083 hpsa_undo_allocations_after_kdump_soft_reset(h
);
7086 /* don't go to clean4, we already unallocated */
7089 goto reinit_after_soft_reset
;
7092 /* Enable Accelerated IO path at driver layer */
7093 h
->acciopath_status
= 1;
7095 h
->drv_req_rescan
= 0;
7097 /* Turn the interrupts on so we can service requests */
7098 h
->access
.set_intr_mask(h
, HPSA_INTR_ON
);
7100 hpsa_hba_inquiry(h
);
7101 hpsa_register_scsi(h
); /* hook ourselves into SCSI subsystem */
7103 /* Monitor the controller for firmware lockups */
7104 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL
;
7105 INIT_DELAYED_WORK(&h
->monitor_ctlr_work
, hpsa_monitor_ctlr_worker
);
7106 schedule_delayed_work(&h
->monitor_ctlr_work
,
7107 h
->heartbeat_sample_interval
);
7111 hpsa_free_sg_chain_blocks(h
);
7112 hpsa_free_cmd_pool(h
);
7116 if (h
->lockup_detected
)
7117 free_percpu(h
->lockup_detected
);
7122 static void hpsa_flush_cache(struct ctlr_info
*h
)
7125 struct CommandList
*c
;
7127 /* Don't bother trying to flush the cache if locked up */
7128 if (unlikely(lockup_detected(h
)))
7130 flush_buf
= kzalloc(4, GFP_KERNEL
);
7134 c
= cmd_special_alloc(h
);
7136 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
7139 if (fill_cmd(c
, HPSA_CACHE_FLUSH
, h
, flush_buf
, 4, 0,
7140 RAID_CTLR_LUNID
, TYPE_CMD
)) {
7143 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_TODEVICE
);
7144 if (c
->err_info
->CommandStatus
!= 0)
7146 dev_warn(&h
->pdev
->dev
,
7147 "error flushing cache on controller\n");
7148 cmd_special_free(h
, c
);
7153 static void hpsa_shutdown(struct pci_dev
*pdev
)
7155 struct ctlr_info
*h
;
7157 h
= pci_get_drvdata(pdev
);
7158 /* Turn board interrupts off and send the flush cache command
7159 * sendcmd will turn off interrupt, and send the flush...
7160 * To write all data in the battery backed cache to disks
7162 hpsa_flush_cache(h
);
7163 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7164 hpsa_free_irqs_and_disable_msix(h
);
7167 static void hpsa_free_device_info(struct ctlr_info
*h
)
7171 for (i
= 0; i
< h
->ndevices
; i
++)
7175 static void hpsa_remove_one(struct pci_dev
*pdev
)
7177 struct ctlr_info
*h
;
7178 unsigned long flags
;
7180 if (pci_get_drvdata(pdev
) == NULL
) {
7181 dev_err(&pdev
->dev
, "unable to remove device\n");
7184 h
= pci_get_drvdata(pdev
);
7186 /* Get rid of any controller monitoring work items */
7187 spin_lock_irqsave(&h
->lock
, flags
);
7188 h
->remove_in_progress
= 1;
7189 cancel_delayed_work(&h
->monitor_ctlr_work
);
7190 spin_unlock_irqrestore(&h
->lock
, flags
);
7192 hpsa_unregister_scsi(h
); /* unhook from SCSI subsystem */
7193 hpsa_shutdown(pdev
);
7195 iounmap(h
->transtable
);
7196 iounmap(h
->cfgtable
);
7197 hpsa_free_device_info(h
);
7198 hpsa_free_sg_chain_blocks(h
);
7199 pci_free_consistent(h
->pdev
,
7200 h
->nr_cmds
* sizeof(struct CommandList
),
7201 h
->cmd_pool
, h
->cmd_pool_dhandle
);
7202 pci_free_consistent(h
->pdev
,
7203 h
->nr_cmds
* sizeof(struct ErrorInfo
),
7204 h
->errinfo_pool
, h
->errinfo_pool_dhandle
);
7205 hpsa_free_reply_queues(h
);
7206 kfree(h
->cmd_pool_bits
);
7207 kfree(h
->blockFetchTable
);
7208 kfree(h
->ioaccel1_blockFetchTable
);
7209 kfree(h
->ioaccel2_blockFetchTable
);
7210 kfree(h
->hba_inquiry_data
);
7211 pci_disable_device(pdev
);
7212 pci_release_regions(pdev
);
7213 free_percpu(h
->lockup_detected
);
7217 static int hpsa_suspend(__attribute__((unused
)) struct pci_dev
*pdev
,
7218 __attribute__((unused
)) pm_message_t state
)
7223 static int hpsa_resume(__attribute__((unused
)) struct pci_dev
*pdev
)
7228 static struct pci_driver hpsa_pci_driver
= {
7230 .probe
= hpsa_init_one
,
7231 .remove
= hpsa_remove_one
,
7232 .id_table
= hpsa_pci_device_id
, /* id_table */
7233 .shutdown
= hpsa_shutdown
,
7234 .suspend
= hpsa_suspend
,
7235 .resume
= hpsa_resume
,
7238 /* Fill in bucket_map[], given nsgs (the max number of
7239 * scatter gather elements supported) and bucket[],
7240 * which is an array of 8 integers. The bucket[] array
7241 * contains 8 different DMA transfer sizes (in 16
7242 * byte increments) which the controller uses to fetch
7243 * commands. This function fills in bucket_map[], which
7244 * maps a given number of scatter gather elements to one of
7245 * the 8 DMA transfer sizes. The point of it is to allow the
7246 * controller to only do as much DMA as needed to fetch the
7247 * command, with the DMA transfer size encoded in the lower
7248 * bits of the command address.
7250 static void calc_bucket_map(int bucket
[], int num_buckets
,
7251 int nsgs
, int min_blocks
, int *bucket_map
)
7255 /* Note, bucket_map must have nsgs+1 entries. */
7256 for (i
= 0; i
<= nsgs
; i
++) {
7257 /* Compute size of a command with i SG entries */
7258 size
= i
+ min_blocks
;
7259 b
= num_buckets
; /* Assume the biggest bucket */
7260 /* Find the bucket that is just big enough */
7261 for (j
= 0; j
< num_buckets
; j
++) {
7262 if (bucket
[j
] >= size
) {
7267 /* for a command with i SG entries, use bucket b. */
7272 static void hpsa_enter_performant_mode(struct ctlr_info
*h
, u32 trans_support
)
7275 unsigned long register_value
;
7276 unsigned long transMethod
= CFGTBL_Trans_Performant
|
7277 (trans_support
& CFGTBL_Trans_use_short_tags
) |
7278 CFGTBL_Trans_enable_directed_msix
|
7279 (trans_support
& (CFGTBL_Trans_io_accel1
|
7280 CFGTBL_Trans_io_accel2
));
7281 struct access_method access
= SA5_performant_access
;
7283 /* This is a bit complicated. There are 8 registers on
7284 * the controller which we write to to tell it 8 different
7285 * sizes of commands which there may be. It's a way of
7286 * reducing the DMA done to fetch each command. Encoded into
7287 * each command's tag are 3 bits which communicate to the controller
7288 * which of the eight sizes that command fits within. The size of
7289 * each command depends on how many scatter gather entries there are.
7290 * Each SG entry requires 16 bytes. The eight registers are programmed
7291 * with the number of 16-byte blocks a command of that size requires.
7292 * The smallest command possible requires 5 such 16 byte blocks.
7293 * the largest command possible requires SG_ENTRIES_IN_CMD + 4 16-byte
7294 * blocks. Note, this only extends to the SG entries contained
7295 * within the command block, and does not extend to chained blocks
7296 * of SG elements. bft[] contains the eight values we write to
7297 * the registers. They are not evenly distributed, but have more
7298 * sizes for small commands, and fewer sizes for larger commands.
7300 int bft
[8] = {5, 6, 8, 10, 12, 20, 28, SG_ENTRIES_IN_CMD
+ 4};
7301 #define MIN_IOACCEL2_BFT_ENTRY 5
7302 #define HPSA_IOACCEL2_HEADER_SZ 4
7303 int bft2
[16] = {MIN_IOACCEL2_BFT_ENTRY
, 6, 7, 8, 9, 10, 11, 12,
7304 13, 14, 15, 16, 17, 18, 19,
7305 HPSA_IOACCEL2_HEADER_SZ
+ IOACCEL2_MAXSGENTRIES
};
7306 BUILD_BUG_ON(ARRAY_SIZE(bft2
) != 16);
7307 BUILD_BUG_ON(ARRAY_SIZE(bft
) != 8);
7308 BUILD_BUG_ON(offsetof(struct io_accel2_cmd
, sg
) >
7309 16 * MIN_IOACCEL2_BFT_ENTRY
);
7310 BUILD_BUG_ON(sizeof(struct ioaccel2_sg_element
) != 16);
7311 BUILD_BUG_ON(28 > SG_ENTRIES_IN_CMD
+ 4);
7312 /* 5 = 1 s/g entry or 4k
7313 * 6 = 2 s/g entry or 8k
7314 * 8 = 4 s/g entry or 16k
7315 * 10 = 6 s/g entry or 24k
7318 /* If the controller supports either ioaccel method then
7319 * we can also use the RAID stack submit path that does not
7320 * perform the superfluous readl() after each command submission.
7322 if (trans_support
& (CFGTBL_Trans_io_accel1
| CFGTBL_Trans_io_accel2
))
7323 access
= SA5_performant_access_no_read
;
7325 /* Controller spec: zero out this buffer. */
7326 for (i
= 0; i
< h
->nreply_queues
; i
++)
7327 memset(h
->reply_queue
[i
].head
, 0, h
->reply_queue_size
);
7329 bft
[7] = SG_ENTRIES_IN_CMD
+ 4;
7330 calc_bucket_map(bft
, ARRAY_SIZE(bft
),
7331 SG_ENTRIES_IN_CMD
, 4, h
->blockFetchTable
);
7332 for (i
= 0; i
< 8; i
++)
7333 writel(bft
[i
], &h
->transtable
->BlockFetch
[i
]);
7335 /* size of controller ring buffer */
7336 writel(h
->max_commands
, &h
->transtable
->RepQSize
);
7337 writel(h
->nreply_queues
, &h
->transtable
->RepQCount
);
7338 writel(0, &h
->transtable
->RepQCtrAddrLow32
);
7339 writel(0, &h
->transtable
->RepQCtrAddrHigh32
);
7341 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7342 writel(0, &h
->transtable
->RepQAddr
[i
].upper
);
7343 writel(h
->reply_queue
[i
].busaddr
,
7344 &h
->transtable
->RepQAddr
[i
].lower
);
7347 writel(0, &h
->cfgtable
->HostWrite
.command_pool_addr_hi
);
7348 writel(transMethod
, &(h
->cfgtable
->HostWrite
.TransportRequest
));
7350 * enable outbound interrupt coalescing in accelerator mode;
7352 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7353 access
= SA5_ioaccel_mode1_access
;
7354 writel(10, &h
->cfgtable
->HostWrite
.CoalIntDelay
);
7355 writel(4, &h
->cfgtable
->HostWrite
.CoalIntCount
);
7357 if (trans_support
& CFGTBL_Trans_io_accel2
) {
7358 access
= SA5_ioaccel_mode2_access
;
7359 writel(10, &h
->cfgtable
->HostWrite
.CoalIntDelay
);
7360 writel(4, &h
->cfgtable
->HostWrite
.CoalIntCount
);
7363 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
7364 hpsa_wait_for_mode_change_ack(h
);
7365 register_value
= readl(&(h
->cfgtable
->TransportActive
));
7366 if (!(register_value
& CFGTBL_Trans_Performant
)) {
7367 dev_warn(&h
->pdev
->dev
, "unable to get board into"
7368 " performant mode\n");
7371 /* Change the access methods to the performant access methods */
7373 h
->transMethod
= transMethod
;
7375 if (!((trans_support
& CFGTBL_Trans_io_accel1
) ||
7376 (trans_support
& CFGTBL_Trans_io_accel2
)))
7379 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7380 /* Set up I/O accelerator mode */
7381 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7382 writel(i
, h
->vaddr
+ IOACCEL_MODE1_REPLY_QUEUE_INDEX
);
7383 h
->reply_queue
[i
].current_entry
=
7384 readl(h
->vaddr
+ IOACCEL_MODE1_PRODUCER_INDEX
);
7386 bft
[7] = h
->ioaccel_maxsg
+ 8;
7387 calc_bucket_map(bft
, ARRAY_SIZE(bft
), h
->ioaccel_maxsg
, 8,
7388 h
->ioaccel1_blockFetchTable
);
7390 /* initialize all reply queue entries to unused */
7391 for (i
= 0; i
< h
->nreply_queues
; i
++)
7392 memset(h
->reply_queue
[i
].head
,
7393 (u8
) IOACCEL_MODE1_REPLY_UNUSED
,
7394 h
->reply_queue_size
);
7396 /* set all the constant fields in the accelerator command
7397 * frames once at init time to save CPU cycles later.
7399 for (i
= 0; i
< h
->nr_cmds
; i
++) {
7400 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[i
];
7402 cp
->function
= IOACCEL1_FUNCTION_SCSIIO
;
7403 cp
->err_info
= (u32
) (h
->errinfo_pool_dhandle
+
7404 (i
* sizeof(struct ErrorInfo
)));
7405 cp
->err_info_len
= sizeof(struct ErrorInfo
);
7406 cp
->sgl_offset
= IOACCEL1_SGLOFFSET
;
7407 cp
->host_context_flags
= IOACCEL1_HCFLAGS_CISS_FORMAT
;
7408 cp
->timeout_sec
= 0;
7411 cpu_to_le64((i
<< DIRECT_LOOKUP_SHIFT
) |
7414 cpu_to_le64(h
->ioaccel_cmd_pool_dhandle
+
7415 (i
* sizeof(struct io_accel1_cmd
)));
7417 } else if (trans_support
& CFGTBL_Trans_io_accel2
) {
7418 u64 cfg_offset
, cfg_base_addr_index
;
7419 u32 bft2_offset
, cfg_base_addr
;
7422 rc
= hpsa_find_cfg_addrs(h
->pdev
, h
->vaddr
, &cfg_base_addr
,
7423 &cfg_base_addr_index
, &cfg_offset
);
7424 BUILD_BUG_ON(offsetof(struct io_accel2_cmd
, sg
) != 64);
7425 bft2
[15] = h
->ioaccel_maxsg
+ HPSA_IOACCEL2_HEADER_SZ
;
7426 calc_bucket_map(bft2
, ARRAY_SIZE(bft2
), h
->ioaccel_maxsg
,
7427 4, h
->ioaccel2_blockFetchTable
);
7428 bft2_offset
= readl(&h
->cfgtable
->io_accel_request_size_offset
);
7429 BUILD_BUG_ON(offsetof(struct CfgTable
,
7430 io_accel_request_size_offset
) != 0xb8);
7431 h
->ioaccel2_bft2_regs
=
7432 remap_pci_mem(pci_resource_start(h
->pdev
,
7433 cfg_base_addr_index
) +
7434 cfg_offset
+ bft2_offset
,
7436 sizeof(*h
->ioaccel2_bft2_regs
));
7437 for (i
= 0; i
< ARRAY_SIZE(bft2
); i
++)
7438 writel(bft2
[i
], &h
->ioaccel2_bft2_regs
[i
]);
7440 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
7441 hpsa_wait_for_mode_change_ack(h
);
7444 static int hpsa_alloc_ioaccel_cmd_and_bft(struct ctlr_info
*h
)
7447 readl(&(h
->cfgtable
->io_accel_max_embedded_sg_count
));
7448 if (h
->ioaccel_maxsg
> IOACCEL1_MAXSGENTRIES
)
7449 h
->ioaccel_maxsg
= IOACCEL1_MAXSGENTRIES
;
7451 /* Command structures must be aligned on a 128-byte boundary
7452 * because the 7 lower bits of the address are used by the
7455 BUILD_BUG_ON(sizeof(struct io_accel1_cmd
) %
7456 IOACCEL1_COMMANDLIST_ALIGNMENT
);
7457 h
->ioaccel_cmd_pool
=
7458 pci_alloc_consistent(h
->pdev
,
7459 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
),
7460 &(h
->ioaccel_cmd_pool_dhandle
));
7462 h
->ioaccel1_blockFetchTable
=
7463 kmalloc(((h
->ioaccel_maxsg
+ 1) *
7464 sizeof(u32
)), GFP_KERNEL
);
7466 if ((h
->ioaccel_cmd_pool
== NULL
) ||
7467 (h
->ioaccel1_blockFetchTable
== NULL
))
7470 memset(h
->ioaccel_cmd_pool
, 0,
7471 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
));
7475 if (h
->ioaccel_cmd_pool
)
7476 pci_free_consistent(h
->pdev
,
7477 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
),
7478 h
->ioaccel_cmd_pool
, h
->ioaccel_cmd_pool_dhandle
);
7479 kfree(h
->ioaccel1_blockFetchTable
);
7483 static int ioaccel2_alloc_cmds_and_bft(struct ctlr_info
*h
)
7485 /* Allocate ioaccel2 mode command blocks and block fetch table */
7488 readl(&(h
->cfgtable
->io_accel_max_embedded_sg_count
));
7489 if (h
->ioaccel_maxsg
> IOACCEL2_MAXSGENTRIES
)
7490 h
->ioaccel_maxsg
= IOACCEL2_MAXSGENTRIES
;
7492 BUILD_BUG_ON(sizeof(struct io_accel2_cmd
) %
7493 IOACCEL2_COMMANDLIST_ALIGNMENT
);
7494 h
->ioaccel2_cmd_pool
=
7495 pci_alloc_consistent(h
->pdev
,
7496 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
7497 &(h
->ioaccel2_cmd_pool_dhandle
));
7499 h
->ioaccel2_blockFetchTable
=
7500 kmalloc(((h
->ioaccel_maxsg
+ 1) *
7501 sizeof(u32
)), GFP_KERNEL
);
7503 if ((h
->ioaccel2_cmd_pool
== NULL
) ||
7504 (h
->ioaccel2_blockFetchTable
== NULL
))
7507 memset(h
->ioaccel2_cmd_pool
, 0,
7508 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
));
7512 if (h
->ioaccel2_cmd_pool
)
7513 pci_free_consistent(h
->pdev
,
7514 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
7515 h
->ioaccel2_cmd_pool
, h
->ioaccel2_cmd_pool_dhandle
);
7516 kfree(h
->ioaccel2_blockFetchTable
);
7520 static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info
*h
)
7523 unsigned long transMethod
= CFGTBL_Trans_Performant
|
7524 CFGTBL_Trans_use_short_tags
;
7527 if (hpsa_simple_mode
)
7530 trans_support
= readl(&(h
->cfgtable
->TransportSupport
));
7531 if (!(trans_support
& PERFORMANT_MODE
))
7534 /* Check for I/O accelerator mode support */
7535 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7536 transMethod
|= CFGTBL_Trans_io_accel1
|
7537 CFGTBL_Trans_enable_directed_msix
;
7538 if (hpsa_alloc_ioaccel_cmd_and_bft(h
))
7541 if (trans_support
& CFGTBL_Trans_io_accel2
) {
7542 transMethod
|= CFGTBL_Trans_io_accel2
|
7543 CFGTBL_Trans_enable_directed_msix
;
7544 if (ioaccel2_alloc_cmds_and_bft(h
))
7549 h
->nreply_queues
= h
->msix_vector
> 0 ? h
->msix_vector
: 1;
7550 hpsa_get_max_perf_mode_cmds(h
);
7551 /* Performant mode ring buffer and supporting data structures */
7552 h
->reply_queue_size
= h
->max_commands
* sizeof(u64
);
7554 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7555 h
->reply_queue
[i
].head
= pci_alloc_consistent(h
->pdev
,
7556 h
->reply_queue_size
,
7557 &(h
->reply_queue
[i
].busaddr
));
7558 if (!h
->reply_queue
[i
].head
)
7560 h
->reply_queue
[i
].size
= h
->max_commands
;
7561 h
->reply_queue
[i
].wraparound
= 1; /* spec: init to 1 */
7562 h
->reply_queue
[i
].current_entry
= 0;
7565 /* Need a block fetch table for performant mode */
7566 h
->blockFetchTable
= kmalloc(((SG_ENTRIES_IN_CMD
+ 1) *
7567 sizeof(u32
)), GFP_KERNEL
);
7568 if (!h
->blockFetchTable
)
7571 hpsa_enter_performant_mode(h
, trans_support
);
7575 hpsa_free_reply_queues(h
);
7576 kfree(h
->blockFetchTable
);
7579 static int is_accelerated_cmd(struct CommandList
*c
)
7581 return c
->cmd_type
== CMD_IOACCEL1
|| c
->cmd_type
== CMD_IOACCEL2
;
7584 static void hpsa_drain_accel_commands(struct ctlr_info
*h
)
7586 struct CommandList
*c
= NULL
;
7587 unsigned long flags
;
7590 do { /* wait for all outstanding commands to drain out */
7592 spin_lock_irqsave(&h
->lock
, flags
);
7593 list_for_each_entry(c
, &h
->cmpQ
, list
)
7594 accel_cmds_out
+= is_accelerated_cmd(c
);
7595 list_for_each_entry(c
, &h
->reqQ
, list
)
7596 accel_cmds_out
+= is_accelerated_cmd(c
);
7597 spin_unlock_irqrestore(&h
->lock
, flags
);
7598 if (accel_cmds_out
<= 0)
7605 * This is it. Register the PCI driver information for the cards we control
7606 * the OS will call our registered routines when it finds one of our cards.
7608 static int __init
hpsa_init(void)
7610 return pci_register_driver(&hpsa_pci_driver
);
7613 static void __exit
hpsa_cleanup(void)
7615 pci_unregister_driver(&hpsa_pci_driver
);
7618 static void __attribute__((unused
)) verify_offsets(void)
7620 #define VERIFY_OFFSET(member, offset) \
7621 BUILD_BUG_ON(offsetof(struct raid_map_data, member) != offset)
7623 VERIFY_OFFSET(structure_size
, 0);
7624 VERIFY_OFFSET(volume_blk_size
, 4);
7625 VERIFY_OFFSET(volume_blk_cnt
, 8);
7626 VERIFY_OFFSET(phys_blk_shift
, 16);
7627 VERIFY_OFFSET(parity_rotation_shift
, 17);
7628 VERIFY_OFFSET(strip_size
, 18);
7629 VERIFY_OFFSET(disk_starting_blk
, 20);
7630 VERIFY_OFFSET(disk_blk_cnt
, 28);
7631 VERIFY_OFFSET(data_disks_per_row
, 36);
7632 VERIFY_OFFSET(metadata_disks_per_row
, 38);
7633 VERIFY_OFFSET(row_cnt
, 40);
7634 VERIFY_OFFSET(layout_map_count
, 42);
7635 VERIFY_OFFSET(flags
, 44);
7636 VERIFY_OFFSET(dekindex
, 46);
7637 /* VERIFY_OFFSET(reserved, 48 */
7638 VERIFY_OFFSET(data
, 64);
7640 #undef VERIFY_OFFSET
7642 #define VERIFY_OFFSET(member, offset) \
7643 BUILD_BUG_ON(offsetof(struct io_accel2_cmd, member) != offset)
7645 VERIFY_OFFSET(IU_type
, 0);
7646 VERIFY_OFFSET(direction
, 1);
7647 VERIFY_OFFSET(reply_queue
, 2);
7648 /* VERIFY_OFFSET(reserved1, 3); */
7649 VERIFY_OFFSET(scsi_nexus
, 4);
7650 VERIFY_OFFSET(Tag
, 8);
7651 VERIFY_OFFSET(cdb
, 16);
7652 VERIFY_OFFSET(cciss_lun
, 32);
7653 VERIFY_OFFSET(data_len
, 40);
7654 VERIFY_OFFSET(cmd_priority_task_attr
, 44);
7655 VERIFY_OFFSET(sg_count
, 45);
7656 /* VERIFY_OFFSET(reserved3 */
7657 VERIFY_OFFSET(err_ptr
, 48);
7658 VERIFY_OFFSET(err_len
, 56);
7659 /* VERIFY_OFFSET(reserved4 */
7660 VERIFY_OFFSET(sg
, 64);
7662 #undef VERIFY_OFFSET
7664 #define VERIFY_OFFSET(member, offset) \
7665 BUILD_BUG_ON(offsetof(struct io_accel1_cmd, member) != offset)
7667 VERIFY_OFFSET(dev_handle
, 0x00);
7668 VERIFY_OFFSET(reserved1
, 0x02);
7669 VERIFY_OFFSET(function
, 0x03);
7670 VERIFY_OFFSET(reserved2
, 0x04);
7671 VERIFY_OFFSET(err_info
, 0x0C);
7672 VERIFY_OFFSET(reserved3
, 0x10);
7673 VERIFY_OFFSET(err_info_len
, 0x12);
7674 VERIFY_OFFSET(reserved4
, 0x13);
7675 VERIFY_OFFSET(sgl_offset
, 0x14);
7676 VERIFY_OFFSET(reserved5
, 0x15);
7677 VERIFY_OFFSET(transfer_len
, 0x1C);
7678 VERIFY_OFFSET(reserved6
, 0x20);
7679 VERIFY_OFFSET(io_flags
, 0x24);
7680 VERIFY_OFFSET(reserved7
, 0x26);
7681 VERIFY_OFFSET(LUN
, 0x34);
7682 VERIFY_OFFSET(control
, 0x3C);
7683 VERIFY_OFFSET(CDB
, 0x40);
7684 VERIFY_OFFSET(reserved8
, 0x50);
7685 VERIFY_OFFSET(host_context_flags
, 0x60);
7686 VERIFY_OFFSET(timeout_sec
, 0x62);
7687 VERIFY_OFFSET(ReplyQueue
, 0x64);
7688 VERIFY_OFFSET(reserved9
, 0x65);
7689 VERIFY_OFFSET(tag
, 0x68);
7690 VERIFY_OFFSET(host_addr
, 0x70);
7691 VERIFY_OFFSET(CISS_LUN
, 0x78);
7692 VERIFY_OFFSET(SG
, 0x78 + 8);
7693 #undef VERIFY_OFFSET
7696 module_init(hpsa_init
);
7697 module_exit(hpsa_cleanup
);