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 <asm/div64.h>
55 /* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */
56 #define HPSA_DRIVER_VERSION "3.4.4-1"
57 #define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
60 /* How long to wait (in milliseconds) for board to go into simple mode */
61 #define MAX_CONFIG_WAIT 30000
62 #define MAX_IOCTL_CONFIG_WAIT 1000
64 /*define how many times we will try a command because of bus resets */
65 #define MAX_CMD_RETRIES 3
67 /* Embedded module documentation macros - see modules.h */
68 MODULE_AUTHOR("Hewlett-Packard Company");
69 MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \
71 MODULE_SUPPORTED_DEVICE("HP Smart Array Controllers");
72 MODULE_VERSION(HPSA_DRIVER_VERSION
);
73 MODULE_LICENSE("GPL");
75 static int hpsa_allow_any
;
76 module_param(hpsa_allow_any
, int, S_IRUGO
|S_IWUSR
);
77 MODULE_PARM_DESC(hpsa_allow_any
,
78 "Allow hpsa driver to access unknown HP Smart Array hardware");
79 static int hpsa_simple_mode
;
80 module_param(hpsa_simple_mode
, int, S_IRUGO
|S_IWUSR
);
81 MODULE_PARM_DESC(hpsa_simple_mode
,
82 "Use 'simple mode' rather than 'performant mode'");
84 /* define the PCI info for the cards we can control */
85 static const struct pci_device_id hpsa_pci_device_id
[] = {
86 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3241},
87 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3243},
88 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3245},
89 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3247},
90 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3249},
91 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x324A},
92 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x324B},
93 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3233},
94 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3350},
95 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3351},
96 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3352},
97 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3353},
98 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3354},
99 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3355},
100 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3356},
101 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1921},
102 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1922},
103 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1923},
104 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1924},
105 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1925},
106 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1926},
107 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1928},
108 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1929},
109 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BD},
110 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BE},
111 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BF},
112 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C0},
113 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C1},
114 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C2},
115 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C3},
116 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C4},
117 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C5},
118 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C6},
119 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C7},
120 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C8},
121 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C9},
122 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CA},
123 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CB},
124 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CC},
125 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CD},
126 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CE},
127 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0076},
128 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0087},
129 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x007D},
130 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0088},
131 {PCI_VENDOR_ID_HP
, 0x333f, 0x103c, 0x333f},
132 {PCI_VENDOR_ID_HP
, PCI_ANY_ID
, PCI_ANY_ID
, PCI_ANY_ID
,
133 PCI_CLASS_STORAGE_RAID
<< 8, 0xffff << 8, 0},
137 MODULE_DEVICE_TABLE(pci
, hpsa_pci_device_id
);
139 /* board_id = Subsystem Device ID & Vendor ID
140 * product = Marketing Name for the board
141 * access = Address of the struct of function pointers
143 static struct board_type products
[] = {
144 {0x3241103C, "Smart Array P212", &SA5_access
},
145 {0x3243103C, "Smart Array P410", &SA5_access
},
146 {0x3245103C, "Smart Array P410i", &SA5_access
},
147 {0x3247103C, "Smart Array P411", &SA5_access
},
148 {0x3249103C, "Smart Array P812", &SA5_access
},
149 {0x324A103C, "Smart Array P712m", &SA5_access
},
150 {0x324B103C, "Smart Array P711m", &SA5_access
},
151 {0x3350103C, "Smart Array P222", &SA5_access
},
152 {0x3351103C, "Smart Array P420", &SA5_access
},
153 {0x3352103C, "Smart Array P421", &SA5_access
},
154 {0x3353103C, "Smart Array P822", &SA5_access
},
155 {0x3354103C, "Smart Array P420i", &SA5_access
},
156 {0x3355103C, "Smart Array P220i", &SA5_access
},
157 {0x3356103C, "Smart Array P721m", &SA5_access
},
158 {0x1921103C, "Smart Array P830i", &SA5_access
},
159 {0x1922103C, "Smart Array P430", &SA5_access
},
160 {0x1923103C, "Smart Array P431", &SA5_access
},
161 {0x1924103C, "Smart Array P830", &SA5_access
},
162 {0x1926103C, "Smart Array P731m", &SA5_access
},
163 {0x1928103C, "Smart Array P230i", &SA5_access
},
164 {0x1929103C, "Smart Array P530", &SA5_access
},
165 {0x21BD103C, "Smart Array", &SA5_access
},
166 {0x21BE103C, "Smart Array", &SA5_access
},
167 {0x21BF103C, "Smart Array", &SA5_access
},
168 {0x21C0103C, "Smart Array", &SA5_access
},
169 {0x21C1103C, "Smart Array", &SA5_access
},
170 {0x21C2103C, "Smart Array", &SA5_access
},
171 {0x21C3103C, "Smart Array", &SA5_access
},
172 {0x21C4103C, "Smart Array", &SA5_access
},
173 {0x21C5103C, "Smart Array", &SA5_access
},
174 {0x21C6103C, "Smart Array", &SA5_access
},
175 {0x21C7103C, "Smart Array", &SA5_access
},
176 {0x21C8103C, "Smart Array", &SA5_access
},
177 {0x21C9103C, "Smart Array", &SA5_access
},
178 {0x21CA103C, "Smart Array", &SA5_access
},
179 {0x21CB103C, "Smart Array", &SA5_access
},
180 {0x21CC103C, "Smart Array", &SA5_access
},
181 {0x21CD103C, "Smart Array", &SA5_access
},
182 {0x21CE103C, "Smart Array", &SA5_access
},
183 {0x00761590, "HP Storage P1224 Array Controller", &SA5_access
},
184 {0x00871590, "HP Storage P1224e Array Controller", &SA5_access
},
185 {0x007D1590, "HP Storage P1228 Array Controller", &SA5_access
},
186 {0x00881590, "HP Storage P1228e Array Controller", &SA5_access
},
187 {0x333f103c, "HP StorageWorks 1210m Array Controller", &SA5_access
},
188 {0xFFFF103C, "Unknown Smart Array", &SA5_access
},
191 static int number_of_controllers
;
193 static irqreturn_t
do_hpsa_intr_intx(int irq
, void *dev_id
);
194 static irqreturn_t
do_hpsa_intr_msi(int irq
, void *dev_id
);
195 static int hpsa_ioctl(struct scsi_device
*dev
, int cmd
, void *arg
);
196 static void start_io(struct ctlr_info
*h
);
199 static int hpsa_compat_ioctl(struct scsi_device
*dev
, int cmd
, void *arg
);
202 static void cmd_free(struct ctlr_info
*h
, struct CommandList
*c
);
203 static void cmd_special_free(struct ctlr_info
*h
, struct CommandList
*c
);
204 static struct CommandList
*cmd_alloc(struct ctlr_info
*h
);
205 static struct CommandList
*cmd_special_alloc(struct ctlr_info
*h
);
206 static int fill_cmd(struct CommandList
*c
, u8 cmd
, struct ctlr_info
*h
,
207 void *buff
, size_t size
, u16 page_code
, unsigned char *scsi3addr
,
209 #define VPD_PAGE (1 << 8)
211 static int hpsa_scsi_queue_command(struct Scsi_Host
*h
, struct scsi_cmnd
*cmd
);
212 static void hpsa_scan_start(struct Scsi_Host
*);
213 static int hpsa_scan_finished(struct Scsi_Host
*sh
,
214 unsigned long elapsed_time
);
215 static int hpsa_change_queue_depth(struct scsi_device
*sdev
,
216 int qdepth
, int reason
);
218 static int hpsa_eh_device_reset_handler(struct scsi_cmnd
*scsicmd
);
219 static int hpsa_eh_abort_handler(struct scsi_cmnd
*scsicmd
);
220 static int hpsa_slave_alloc(struct scsi_device
*sdev
);
221 static void hpsa_slave_destroy(struct scsi_device
*sdev
);
223 static void hpsa_update_scsi_devices(struct ctlr_info
*h
, int hostno
);
224 static int check_for_unit_attention(struct ctlr_info
*h
,
225 struct CommandList
*c
);
226 static void check_ioctl_unit_attention(struct ctlr_info
*h
,
227 struct CommandList
*c
);
228 /* performant mode helper functions */
229 static void calc_bucket_map(int *bucket
, int num_buckets
,
230 int nsgs
, int min_blocks
, int *bucket_map
);
231 static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info
*h
);
232 static inline u32
next_command(struct ctlr_info
*h
, u8 q
);
233 static int hpsa_find_cfg_addrs(struct pci_dev
*pdev
, void __iomem
*vaddr
,
234 u32
*cfg_base_addr
, u64
*cfg_base_addr_index
,
236 static int hpsa_pci_find_memory_BAR(struct pci_dev
*pdev
,
237 unsigned long *memory_bar
);
238 static int hpsa_lookup_board_id(struct pci_dev
*pdev
, u32
*board_id
);
239 static int hpsa_wait_for_board_state(struct pci_dev
*pdev
, void __iomem
*vaddr
,
241 static inline void finish_cmd(struct CommandList
*c
);
242 static void hpsa_wait_for_mode_change_ack(struct ctlr_info
*h
);
243 #define BOARD_NOT_READY 0
244 #define BOARD_READY 1
245 static void hpsa_drain_accel_commands(struct ctlr_info
*h
);
246 static void hpsa_flush_cache(struct ctlr_info
*h
);
247 static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info
*h
,
248 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
251 static inline struct ctlr_info
*sdev_to_hba(struct scsi_device
*sdev
)
253 unsigned long *priv
= shost_priv(sdev
->host
);
254 return (struct ctlr_info
*) *priv
;
257 static inline struct ctlr_info
*shost_to_hba(struct Scsi_Host
*sh
)
259 unsigned long *priv
= shost_priv(sh
);
260 return (struct ctlr_info
*) *priv
;
263 static int check_for_unit_attention(struct ctlr_info
*h
,
264 struct CommandList
*c
)
266 if (c
->err_info
->SenseInfo
[2] != UNIT_ATTENTION
)
269 switch (c
->err_info
->SenseInfo
[12]) {
271 dev_warn(&h
->pdev
->dev
, HPSA
"%d: a state change "
272 "detected, command retried\n", h
->ctlr
);
275 dev_warn(&h
->pdev
->dev
, HPSA
"%d: LUN failure "
276 "detected, action required\n", h
->ctlr
);
278 case REPORT_LUNS_CHANGED
:
279 dev_warn(&h
->pdev
->dev
, HPSA
"%d: report LUN data "
280 "changed, action required\n", h
->ctlr
);
282 * Note: this REPORT_LUNS_CHANGED condition only occurs on the external
283 * target (array) devices.
287 dev_warn(&h
->pdev
->dev
, HPSA
"%d: a power on "
288 "or device reset detected\n", h
->ctlr
);
290 case UNIT_ATTENTION_CLEARED
:
291 dev_warn(&h
->pdev
->dev
, HPSA
"%d: unit attention "
292 "cleared by another initiator\n", h
->ctlr
);
295 dev_warn(&h
->pdev
->dev
, HPSA
"%d: unknown "
296 "unit attention detected\n", h
->ctlr
);
302 static int check_for_busy(struct ctlr_info
*h
, struct CommandList
*c
)
304 if (c
->err_info
->CommandStatus
!= CMD_TARGET_STATUS
||
305 (c
->err_info
->ScsiStatus
!= SAM_STAT_BUSY
&&
306 c
->err_info
->ScsiStatus
!= SAM_STAT_TASK_SET_FULL
))
308 dev_warn(&h
->pdev
->dev
, HPSA
"device busy");
312 static ssize_t
host_store_hp_ssd_smart_path_status(struct device
*dev
,
313 struct device_attribute
*attr
,
314 const char *buf
, size_t count
)
318 struct Scsi_Host
*shost
= class_to_shost(dev
);
321 if (!capable(CAP_SYS_ADMIN
) || !capable(CAP_SYS_RAWIO
))
323 len
= count
> sizeof(tmpbuf
) - 1 ? sizeof(tmpbuf
) - 1 : count
;
324 strncpy(tmpbuf
, buf
, len
);
326 if (sscanf(tmpbuf
, "%d", &status
) != 1)
328 h
= shost_to_hba(shost
);
329 h
->acciopath_status
= !!status
;
330 dev_warn(&h
->pdev
->dev
,
331 "hpsa: HP SSD Smart Path %s via sysfs update.\n",
332 h
->acciopath_status
? "enabled" : "disabled");
336 static ssize_t
host_store_raid_offload_debug(struct device
*dev
,
337 struct device_attribute
*attr
,
338 const char *buf
, size_t count
)
340 int debug_level
, len
;
342 struct Scsi_Host
*shost
= class_to_shost(dev
);
345 if (!capable(CAP_SYS_ADMIN
) || !capable(CAP_SYS_RAWIO
))
347 len
= count
> sizeof(tmpbuf
) - 1 ? sizeof(tmpbuf
) - 1 : count
;
348 strncpy(tmpbuf
, buf
, len
);
350 if (sscanf(tmpbuf
, "%d", &debug_level
) != 1)
354 h
= shost_to_hba(shost
);
355 h
->raid_offload_debug
= debug_level
;
356 dev_warn(&h
->pdev
->dev
, "hpsa: Set raid_offload_debug level = %d\n",
357 h
->raid_offload_debug
);
361 static ssize_t
host_store_rescan(struct device
*dev
,
362 struct device_attribute
*attr
,
363 const char *buf
, size_t count
)
366 struct Scsi_Host
*shost
= class_to_shost(dev
);
367 h
= shost_to_hba(shost
);
368 hpsa_scan_start(h
->scsi_host
);
372 static ssize_t
host_show_firmware_revision(struct device
*dev
,
373 struct device_attribute
*attr
, char *buf
)
376 struct Scsi_Host
*shost
= class_to_shost(dev
);
377 unsigned char *fwrev
;
379 h
= shost_to_hba(shost
);
380 if (!h
->hba_inquiry_data
)
382 fwrev
= &h
->hba_inquiry_data
[32];
383 return snprintf(buf
, 20, "%c%c%c%c\n",
384 fwrev
[0], fwrev
[1], fwrev
[2], fwrev
[3]);
387 static ssize_t
host_show_commands_outstanding(struct device
*dev
,
388 struct device_attribute
*attr
, char *buf
)
390 struct Scsi_Host
*shost
= class_to_shost(dev
);
391 struct ctlr_info
*h
= shost_to_hba(shost
);
393 return snprintf(buf
, 20, "%d\n", h
->commands_outstanding
);
396 static ssize_t
host_show_transport_mode(struct device
*dev
,
397 struct device_attribute
*attr
, char *buf
)
400 struct Scsi_Host
*shost
= class_to_shost(dev
);
402 h
= shost_to_hba(shost
);
403 return snprintf(buf
, 20, "%s\n",
404 h
->transMethod
& CFGTBL_Trans_Performant
?
405 "performant" : "simple");
408 static ssize_t
host_show_hp_ssd_smart_path_status(struct device
*dev
,
409 struct device_attribute
*attr
, char *buf
)
412 struct Scsi_Host
*shost
= class_to_shost(dev
);
414 h
= shost_to_hba(shost
);
415 return snprintf(buf
, 30, "HP SSD Smart Path %s\n",
416 (h
->acciopath_status
== 1) ? "enabled" : "disabled");
419 /* List of controllers which cannot be hard reset on kexec with reset_devices */
420 static u32 unresettable_controller
[] = {
421 0x324a103C, /* Smart Array P712m */
422 0x324b103C, /* SmartArray P711m */
423 0x3223103C, /* Smart Array P800 */
424 0x3234103C, /* Smart Array P400 */
425 0x3235103C, /* Smart Array P400i */
426 0x3211103C, /* Smart Array E200i */
427 0x3212103C, /* Smart Array E200 */
428 0x3213103C, /* Smart Array E200i */
429 0x3214103C, /* Smart Array E200i */
430 0x3215103C, /* Smart Array E200i */
431 0x3237103C, /* Smart Array E500 */
432 0x323D103C, /* Smart Array P700m */
433 0x40800E11, /* Smart Array 5i */
434 0x409C0E11, /* Smart Array 6400 */
435 0x409D0E11, /* Smart Array 6400 EM */
436 0x40700E11, /* Smart Array 5300 */
437 0x40820E11, /* Smart Array 532 */
438 0x40830E11, /* Smart Array 5312 */
439 0x409A0E11, /* Smart Array 641 */
440 0x409B0E11, /* Smart Array 642 */
441 0x40910E11, /* Smart Array 6i */
444 /* List of controllers which cannot even be soft reset */
445 static u32 soft_unresettable_controller
[] = {
446 0x40800E11, /* Smart Array 5i */
447 0x40700E11, /* Smart Array 5300 */
448 0x40820E11, /* Smart Array 532 */
449 0x40830E11, /* Smart Array 5312 */
450 0x409A0E11, /* Smart Array 641 */
451 0x409B0E11, /* Smart Array 642 */
452 0x40910E11, /* Smart Array 6i */
453 /* Exclude 640x boards. These are two pci devices in one slot
454 * which share a battery backed cache module. One controls the
455 * cache, the other accesses the cache through the one that controls
456 * it. If we reset the one controlling the cache, the other will
457 * likely not be happy. Just forbid resetting this conjoined mess.
458 * The 640x isn't really supported by hpsa anyway.
460 0x409C0E11, /* Smart Array 6400 */
461 0x409D0E11, /* Smart Array 6400 EM */
464 static int ctlr_is_hard_resettable(u32 board_id
)
468 for (i
= 0; i
< ARRAY_SIZE(unresettable_controller
); i
++)
469 if (unresettable_controller
[i
] == board_id
)
474 static int ctlr_is_soft_resettable(u32 board_id
)
478 for (i
= 0; i
< ARRAY_SIZE(soft_unresettable_controller
); i
++)
479 if (soft_unresettable_controller
[i
] == board_id
)
484 static int ctlr_is_resettable(u32 board_id
)
486 return ctlr_is_hard_resettable(board_id
) ||
487 ctlr_is_soft_resettable(board_id
);
490 static ssize_t
host_show_resettable(struct device
*dev
,
491 struct device_attribute
*attr
, char *buf
)
494 struct Scsi_Host
*shost
= class_to_shost(dev
);
496 h
= shost_to_hba(shost
);
497 return snprintf(buf
, 20, "%d\n", ctlr_is_resettable(h
->board_id
));
500 static inline int is_logical_dev_addr_mode(unsigned char scsi3addr
[])
502 return (scsi3addr
[3] & 0xC0) == 0x40;
505 static const char *raid_label
[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
508 #define HPSA_RAID_0 0
509 #define HPSA_RAID_4 1
510 #define HPSA_RAID_1 2 /* also used for RAID 10 */
511 #define HPSA_RAID_5 3 /* also used for RAID 50 */
512 #define HPSA_RAID_51 4
513 #define HPSA_RAID_6 5 /* also used for RAID 60 */
514 #define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */
515 #define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 1)
517 static ssize_t
raid_level_show(struct device
*dev
,
518 struct device_attribute
*attr
, char *buf
)
521 unsigned char rlevel
;
523 struct scsi_device
*sdev
;
524 struct hpsa_scsi_dev_t
*hdev
;
527 sdev
= to_scsi_device(dev
);
528 h
= sdev_to_hba(sdev
);
529 spin_lock_irqsave(&h
->lock
, flags
);
530 hdev
= sdev
->hostdata
;
532 spin_unlock_irqrestore(&h
->lock
, flags
);
536 /* Is this even a logical drive? */
537 if (!is_logical_dev_addr_mode(hdev
->scsi3addr
)) {
538 spin_unlock_irqrestore(&h
->lock
, flags
);
539 l
= snprintf(buf
, PAGE_SIZE
, "N/A\n");
543 rlevel
= hdev
->raid_level
;
544 spin_unlock_irqrestore(&h
->lock
, flags
);
545 if (rlevel
> RAID_UNKNOWN
)
546 rlevel
= RAID_UNKNOWN
;
547 l
= snprintf(buf
, PAGE_SIZE
, "RAID %s\n", raid_label
[rlevel
]);
551 static ssize_t
lunid_show(struct device
*dev
,
552 struct device_attribute
*attr
, char *buf
)
555 struct scsi_device
*sdev
;
556 struct hpsa_scsi_dev_t
*hdev
;
558 unsigned char lunid
[8];
560 sdev
= to_scsi_device(dev
);
561 h
= sdev_to_hba(sdev
);
562 spin_lock_irqsave(&h
->lock
, flags
);
563 hdev
= sdev
->hostdata
;
565 spin_unlock_irqrestore(&h
->lock
, flags
);
568 memcpy(lunid
, hdev
->scsi3addr
, sizeof(lunid
));
569 spin_unlock_irqrestore(&h
->lock
, flags
);
570 return snprintf(buf
, 20, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
571 lunid
[0], lunid
[1], lunid
[2], lunid
[3],
572 lunid
[4], lunid
[5], lunid
[6], lunid
[7]);
575 static ssize_t
unique_id_show(struct device
*dev
,
576 struct device_attribute
*attr
, char *buf
)
579 struct scsi_device
*sdev
;
580 struct hpsa_scsi_dev_t
*hdev
;
582 unsigned char sn
[16];
584 sdev
= to_scsi_device(dev
);
585 h
= sdev_to_hba(sdev
);
586 spin_lock_irqsave(&h
->lock
, flags
);
587 hdev
= sdev
->hostdata
;
589 spin_unlock_irqrestore(&h
->lock
, flags
);
592 memcpy(sn
, hdev
->device_id
, sizeof(sn
));
593 spin_unlock_irqrestore(&h
->lock
, flags
);
594 return snprintf(buf
, 16 * 2 + 2,
595 "%02X%02X%02X%02X%02X%02X%02X%02X"
596 "%02X%02X%02X%02X%02X%02X%02X%02X\n",
597 sn
[0], sn
[1], sn
[2], sn
[3],
598 sn
[4], sn
[5], sn
[6], sn
[7],
599 sn
[8], sn
[9], sn
[10], sn
[11],
600 sn
[12], sn
[13], sn
[14], sn
[15]);
603 static ssize_t
host_show_hp_ssd_smart_path_enabled(struct device
*dev
,
604 struct device_attribute
*attr
, char *buf
)
607 struct scsi_device
*sdev
;
608 struct hpsa_scsi_dev_t
*hdev
;
612 sdev
= to_scsi_device(dev
);
613 h
= sdev_to_hba(sdev
);
614 spin_lock_irqsave(&h
->lock
, flags
);
615 hdev
= sdev
->hostdata
;
617 spin_unlock_irqrestore(&h
->lock
, flags
);
620 offload_enabled
= hdev
->offload_enabled
;
621 spin_unlock_irqrestore(&h
->lock
, flags
);
622 return snprintf(buf
, 20, "%d\n", offload_enabled
);
625 static DEVICE_ATTR(raid_level
, S_IRUGO
, raid_level_show
, NULL
);
626 static DEVICE_ATTR(lunid
, S_IRUGO
, lunid_show
, NULL
);
627 static DEVICE_ATTR(unique_id
, S_IRUGO
, unique_id_show
, NULL
);
628 static DEVICE_ATTR(rescan
, S_IWUSR
, NULL
, host_store_rescan
);
629 static DEVICE_ATTR(hp_ssd_smart_path_enabled
, S_IRUGO
,
630 host_show_hp_ssd_smart_path_enabled
, NULL
);
631 static DEVICE_ATTR(hp_ssd_smart_path_status
, S_IWUSR
|S_IRUGO
|S_IROTH
,
632 host_show_hp_ssd_smart_path_status
,
633 host_store_hp_ssd_smart_path_status
);
634 static DEVICE_ATTR(raid_offload_debug
, S_IWUSR
, NULL
,
635 host_store_raid_offload_debug
);
636 static DEVICE_ATTR(firmware_revision
, S_IRUGO
,
637 host_show_firmware_revision
, NULL
);
638 static DEVICE_ATTR(commands_outstanding
, S_IRUGO
,
639 host_show_commands_outstanding
, NULL
);
640 static DEVICE_ATTR(transport_mode
, S_IRUGO
,
641 host_show_transport_mode
, NULL
);
642 static DEVICE_ATTR(resettable
, S_IRUGO
,
643 host_show_resettable
, NULL
);
645 static struct device_attribute
*hpsa_sdev_attrs
[] = {
646 &dev_attr_raid_level
,
649 &dev_attr_hp_ssd_smart_path_enabled
,
653 static struct device_attribute
*hpsa_shost_attrs
[] = {
655 &dev_attr_firmware_revision
,
656 &dev_attr_commands_outstanding
,
657 &dev_attr_transport_mode
,
658 &dev_attr_resettable
,
659 &dev_attr_hp_ssd_smart_path_status
,
660 &dev_attr_raid_offload_debug
,
664 static struct scsi_host_template hpsa_driver_template
= {
665 .module
= THIS_MODULE
,
668 .queuecommand
= hpsa_scsi_queue_command
,
669 .scan_start
= hpsa_scan_start
,
670 .scan_finished
= hpsa_scan_finished
,
671 .change_queue_depth
= hpsa_change_queue_depth
,
673 .use_clustering
= ENABLE_CLUSTERING
,
674 .eh_abort_handler
= hpsa_eh_abort_handler
,
675 .eh_device_reset_handler
= hpsa_eh_device_reset_handler
,
677 .slave_alloc
= hpsa_slave_alloc
,
678 .slave_destroy
= hpsa_slave_destroy
,
680 .compat_ioctl
= hpsa_compat_ioctl
,
682 .sdev_attrs
= hpsa_sdev_attrs
,
683 .shost_attrs
= hpsa_shost_attrs
,
689 /* Enqueuing and dequeuing functions for cmdlists. */
690 static inline void addQ(struct list_head
*list
, struct CommandList
*c
)
692 list_add_tail(&c
->list
, list
);
695 static inline u32
next_command(struct ctlr_info
*h
, u8 q
)
698 struct reply_pool
*rq
= &h
->reply_queue
[q
];
701 if (h
->transMethod
& CFGTBL_Trans_io_accel1
)
702 return h
->access
.command_completed(h
, q
);
704 if (unlikely(!(h
->transMethod
& CFGTBL_Trans_Performant
)))
705 return h
->access
.command_completed(h
, q
);
707 if ((rq
->head
[rq
->current_entry
] & 1) == rq
->wraparound
) {
708 a
= rq
->head
[rq
->current_entry
];
710 spin_lock_irqsave(&h
->lock
, flags
);
711 h
->commands_outstanding
--;
712 spin_unlock_irqrestore(&h
->lock
, flags
);
716 /* Check for wraparound */
717 if (rq
->current_entry
== h
->max_commands
) {
718 rq
->current_entry
= 0;
725 * There are some special bits in the bus address of the
726 * command that we have to set for the controller to know
727 * how to process the command:
729 * Normal performant mode:
730 * bit 0: 1 means performant mode, 0 means simple mode.
731 * bits 1-3 = block fetch table entry
732 * bits 4-6 = command type (== 0)
735 * bit 0 = "performant mode" bit.
736 * bits 1-3 = block fetch table entry
737 * bits 4-6 = command type (== 110)
738 * (command type is needed because ioaccel1 mode
739 * commands are submitted through the same register as normal
740 * mode commands, so this is how the controller knows whether
741 * the command is normal mode or ioaccel1 mode.)
744 * bit 0 = "performant mode" bit.
745 * bits 1-4 = block fetch table entry (note extra bit)
746 * bits 4-6 = not needed, because ioaccel2 mode has
747 * a separate special register for submitting commands.
750 /* set_performant_mode: Modify the tag for cciss performant
751 * set bit 0 for pull model, bits 3-1 for block fetch
754 static void set_performant_mode(struct ctlr_info
*h
, struct CommandList
*c
)
756 if (likely(h
->transMethod
& CFGTBL_Trans_Performant
)) {
757 c
->busaddr
|= 1 | (h
->blockFetchTable
[c
->Header
.SGList
] << 1);
758 if (likely(h
->msix_vector
> 0))
759 c
->Header
.ReplyQueue
=
760 raw_smp_processor_id() % h
->nreply_queues
;
764 static void set_ioaccel1_performant_mode(struct ctlr_info
*h
,
765 struct CommandList
*c
)
767 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[c
->cmdindex
];
769 /* Tell the controller to post the reply to the queue for this
770 * processor. This seems to give the best I/O throughput.
772 cp
->ReplyQueue
= smp_processor_id() % h
->nreply_queues
;
773 /* Set the bits in the address sent down to include:
774 * - performant mode bit (bit 0)
775 * - pull count (bits 1-3)
776 * - command type (bits 4-6)
778 c
->busaddr
|= 1 | (h
->ioaccel1_blockFetchTable
[c
->Header
.SGList
] << 1) |
779 IOACCEL1_BUSADDR_CMDTYPE
;
782 static void set_ioaccel2_performant_mode(struct ctlr_info
*h
,
783 struct CommandList
*c
)
785 struct io_accel2_cmd
*cp
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
787 /* Tell the controller to post the reply to the queue for this
788 * processor. This seems to give the best I/O throughput.
790 cp
->reply_queue
= smp_processor_id() % h
->nreply_queues
;
791 /* Set the bits in the address sent down to include:
792 * - performant mode bit not used in ioaccel mode 2
793 * - pull count (bits 0-3)
794 * - command type isn't needed for ioaccel2
796 c
->busaddr
|= (h
->ioaccel2_blockFetchTable
[cp
->sg_count
]);
799 static int is_firmware_flash_cmd(u8
*cdb
)
801 return cdb
[0] == BMIC_WRITE
&& cdb
[6] == BMIC_FLASH_FIRMWARE
;
805 * During firmware flash, the heartbeat register may not update as frequently
806 * as it should. So we dial down lockup detection during firmware flash. and
807 * dial it back up when firmware flash completes.
809 #define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ)
810 #define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ)
811 static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info
*h
,
812 struct CommandList
*c
)
814 if (!is_firmware_flash_cmd(c
->Request
.CDB
))
816 atomic_inc(&h
->firmware_flash_in_progress
);
817 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH
;
820 static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info
*h
,
821 struct CommandList
*c
)
823 if (is_firmware_flash_cmd(c
->Request
.CDB
) &&
824 atomic_dec_and_test(&h
->firmware_flash_in_progress
))
825 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL
;
828 static void enqueue_cmd_and_start_io(struct ctlr_info
*h
,
829 struct CommandList
*c
)
833 switch (c
->cmd_type
) {
835 set_ioaccel1_performant_mode(h
, c
);
838 set_ioaccel2_performant_mode(h
, c
);
841 set_performant_mode(h
, c
);
843 dial_down_lockup_detection_during_fw_flash(h
, c
);
844 spin_lock_irqsave(&h
->lock
, flags
);
847 spin_unlock_irqrestore(&h
->lock
, flags
);
851 static inline void removeQ(struct CommandList
*c
)
853 if (WARN_ON(list_empty(&c
->list
)))
855 list_del_init(&c
->list
);
858 static inline int is_hba_lunid(unsigned char scsi3addr
[])
860 return memcmp(scsi3addr
, RAID_CTLR_LUNID
, 8) == 0;
863 static inline int is_scsi_rev_5(struct ctlr_info
*h
)
865 if (!h
->hba_inquiry_data
)
867 if ((h
->hba_inquiry_data
[2] & 0x07) == 5)
872 static int hpsa_find_target_lun(struct ctlr_info
*h
,
873 unsigned char scsi3addr
[], int bus
, int *target
, int *lun
)
875 /* finds an unused bus, target, lun for a new physical device
876 * assumes h->devlock is held
879 DECLARE_BITMAP(lun_taken
, HPSA_MAX_DEVICES
);
881 bitmap_zero(lun_taken
, HPSA_MAX_DEVICES
);
883 for (i
= 0; i
< h
->ndevices
; i
++) {
884 if (h
->dev
[i
]->bus
== bus
&& h
->dev
[i
]->target
!= -1)
885 __set_bit(h
->dev
[i
]->target
, lun_taken
);
888 i
= find_first_zero_bit(lun_taken
, HPSA_MAX_DEVICES
);
889 if (i
< HPSA_MAX_DEVICES
) {
898 /* Add an entry into h->dev[] array. */
899 static int hpsa_scsi_add_entry(struct ctlr_info
*h
, int hostno
,
900 struct hpsa_scsi_dev_t
*device
,
901 struct hpsa_scsi_dev_t
*added
[], int *nadded
)
903 /* assumes h->devlock is held */
906 unsigned char addr1
[8], addr2
[8];
907 struct hpsa_scsi_dev_t
*sd
;
909 if (n
>= HPSA_MAX_DEVICES
) {
910 dev_err(&h
->pdev
->dev
, "too many devices, some will be "
915 /* physical devices do not have lun or target assigned until now. */
916 if (device
->lun
!= -1)
917 /* Logical device, lun is already assigned. */
920 /* If this device a non-zero lun of a multi-lun device
921 * byte 4 of the 8-byte LUN addr will contain the logical
922 * unit no, zero otherise.
924 if (device
->scsi3addr
[4] == 0) {
925 /* This is not a non-zero lun of a multi-lun device */
926 if (hpsa_find_target_lun(h
, device
->scsi3addr
,
927 device
->bus
, &device
->target
, &device
->lun
) != 0)
932 /* This is a non-zero lun of a multi-lun device.
933 * Search through our list and find the device which
934 * has the same 8 byte LUN address, excepting byte 4.
935 * Assign the same bus and target for this new LUN.
936 * Use the logical unit number from the firmware.
938 memcpy(addr1
, device
->scsi3addr
, 8);
940 for (i
= 0; i
< n
; i
++) {
942 memcpy(addr2
, sd
->scsi3addr
, 8);
944 /* differ only in byte 4? */
945 if (memcmp(addr1
, addr2
, 8) == 0) {
946 device
->bus
= sd
->bus
;
947 device
->target
= sd
->target
;
948 device
->lun
= device
->scsi3addr
[4];
952 if (device
->lun
== -1) {
953 dev_warn(&h
->pdev
->dev
, "physical device with no LUN=0,"
954 " suspect firmware bug or unsupported hardware "
963 added
[*nadded
] = device
;
966 /* initially, (before registering with scsi layer) we don't
967 * know our hostno and we don't want to print anything first
968 * time anyway (the scsi layer's inquiries will show that info)
970 /* if (hostno != -1) */
971 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d added.\n",
972 scsi_device_type(device
->devtype
), hostno
,
973 device
->bus
, device
->target
, device
->lun
);
977 /* Update an entry in h->dev[] array. */
978 static void hpsa_scsi_update_entry(struct ctlr_info
*h
, int hostno
,
979 int entry
, struct hpsa_scsi_dev_t
*new_entry
)
981 /* assumes h->devlock is held */
982 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
984 /* Raid level changed. */
985 h
->dev
[entry
]->raid_level
= new_entry
->raid_level
;
987 /* Raid offload parameters changed. */
988 h
->dev
[entry
]->offload_config
= new_entry
->offload_config
;
989 h
->dev
[entry
]->offload_enabled
= new_entry
->offload_enabled
;
990 h
->dev
[entry
]->ioaccel_handle
= new_entry
->ioaccel_handle
;
991 h
->dev
[entry
]->offload_to_mirror
= new_entry
->offload_to_mirror
;
992 h
->dev
[entry
]->raid_map
= new_entry
->raid_map
;
994 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d updated.\n",
995 scsi_device_type(new_entry
->devtype
), hostno
, new_entry
->bus
,
996 new_entry
->target
, new_entry
->lun
);
999 /* Replace an entry from h->dev[] array. */
1000 static void hpsa_scsi_replace_entry(struct ctlr_info
*h
, int hostno
,
1001 int entry
, struct hpsa_scsi_dev_t
*new_entry
,
1002 struct hpsa_scsi_dev_t
*added
[], int *nadded
,
1003 struct hpsa_scsi_dev_t
*removed
[], int *nremoved
)
1005 /* assumes h->devlock is held */
1006 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
1007 removed
[*nremoved
] = h
->dev
[entry
];
1011 * New physical devices won't have target/lun assigned yet
1012 * so we need to preserve the values in the slot we are replacing.
1014 if (new_entry
->target
== -1) {
1015 new_entry
->target
= h
->dev
[entry
]->target
;
1016 new_entry
->lun
= h
->dev
[entry
]->lun
;
1019 h
->dev
[entry
] = new_entry
;
1020 added
[*nadded
] = new_entry
;
1022 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d changed.\n",
1023 scsi_device_type(new_entry
->devtype
), hostno
, new_entry
->bus
,
1024 new_entry
->target
, new_entry
->lun
);
1027 /* Remove an entry from h->dev[] array. */
1028 static void hpsa_scsi_remove_entry(struct ctlr_info
*h
, int hostno
, int entry
,
1029 struct hpsa_scsi_dev_t
*removed
[], int *nremoved
)
1031 /* assumes h->devlock is held */
1033 struct hpsa_scsi_dev_t
*sd
;
1035 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
1038 removed
[*nremoved
] = h
->dev
[entry
];
1041 for (i
= entry
; i
< h
->ndevices
-1; i
++)
1042 h
->dev
[i
] = h
->dev
[i
+1];
1044 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d removed.\n",
1045 scsi_device_type(sd
->devtype
), hostno
, sd
->bus
, sd
->target
,
1049 #define SCSI3ADDR_EQ(a, b) ( \
1050 (a)[7] == (b)[7] && \
1051 (a)[6] == (b)[6] && \
1052 (a)[5] == (b)[5] && \
1053 (a)[4] == (b)[4] && \
1054 (a)[3] == (b)[3] && \
1055 (a)[2] == (b)[2] && \
1056 (a)[1] == (b)[1] && \
1059 static void fixup_botched_add(struct ctlr_info
*h
,
1060 struct hpsa_scsi_dev_t
*added
)
1062 /* called when scsi_add_device fails in order to re-adjust
1063 * h->dev[] to match the mid layer's view.
1065 unsigned long flags
;
1068 spin_lock_irqsave(&h
->lock
, flags
);
1069 for (i
= 0; i
< h
->ndevices
; i
++) {
1070 if (h
->dev
[i
] == added
) {
1071 for (j
= i
; j
< h
->ndevices
-1; j
++)
1072 h
->dev
[j
] = h
->dev
[j
+1];
1077 spin_unlock_irqrestore(&h
->lock
, flags
);
1081 static inline int device_is_the_same(struct hpsa_scsi_dev_t
*dev1
,
1082 struct hpsa_scsi_dev_t
*dev2
)
1084 /* we compare everything except lun and target as these
1085 * are not yet assigned. Compare parts likely
1088 if (memcmp(dev1
->scsi3addr
, dev2
->scsi3addr
,
1089 sizeof(dev1
->scsi3addr
)) != 0)
1091 if (memcmp(dev1
->device_id
, dev2
->device_id
,
1092 sizeof(dev1
->device_id
)) != 0)
1094 if (memcmp(dev1
->model
, dev2
->model
, sizeof(dev1
->model
)) != 0)
1096 if (memcmp(dev1
->vendor
, dev2
->vendor
, sizeof(dev1
->vendor
)) != 0)
1098 if (dev1
->devtype
!= dev2
->devtype
)
1100 if (dev1
->bus
!= dev2
->bus
)
1105 static inline int device_updated(struct hpsa_scsi_dev_t
*dev1
,
1106 struct hpsa_scsi_dev_t
*dev2
)
1108 /* Device attributes that can change, but don't mean
1109 * that the device is a different device, nor that the OS
1110 * needs to be told anything about the change.
1112 if (dev1
->raid_level
!= dev2
->raid_level
)
1114 if (dev1
->offload_config
!= dev2
->offload_config
)
1116 if (dev1
->offload_enabled
!= dev2
->offload_enabled
)
1121 /* Find needle in haystack. If exact match found, return DEVICE_SAME,
1122 * and return needle location in *index. If scsi3addr matches, but not
1123 * vendor, model, serial num, etc. return DEVICE_CHANGED, and return needle
1124 * location in *index.
1125 * In the case of a minor device attribute change, such as RAID level, just
1126 * return DEVICE_UPDATED, along with the updated device's location in index.
1127 * If needle not found, return DEVICE_NOT_FOUND.
1129 static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t
*needle
,
1130 struct hpsa_scsi_dev_t
*haystack
[], int haystack_size
,
1134 #define DEVICE_NOT_FOUND 0
1135 #define DEVICE_CHANGED 1
1136 #define DEVICE_SAME 2
1137 #define DEVICE_UPDATED 3
1138 for (i
= 0; i
< haystack_size
; i
++) {
1139 if (haystack
[i
] == NULL
) /* previously removed. */
1141 if (SCSI3ADDR_EQ(needle
->scsi3addr
, haystack
[i
]->scsi3addr
)) {
1143 if (device_is_the_same(needle
, haystack
[i
])) {
1144 if (device_updated(needle
, haystack
[i
]))
1145 return DEVICE_UPDATED
;
1148 /* Keep offline devices offline */
1149 if (needle
->volume_offline
)
1150 return DEVICE_NOT_FOUND
;
1151 return DEVICE_CHANGED
;
1156 return DEVICE_NOT_FOUND
;
1159 static void hpsa_monitor_offline_device(struct ctlr_info
*h
,
1160 unsigned char scsi3addr
[])
1162 struct offline_device_entry
*device
;
1163 unsigned long flags
;
1165 /* Check to see if device is already on the list */
1166 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
1167 list_for_each_entry(device
, &h
->offline_device_list
, offline_list
) {
1168 if (memcmp(device
->scsi3addr
, scsi3addr
,
1169 sizeof(device
->scsi3addr
)) == 0) {
1170 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1174 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1176 /* Device is not on the list, add it. */
1177 device
= kmalloc(sizeof(*device
), GFP_KERNEL
);
1179 dev_warn(&h
->pdev
->dev
, "out of memory in %s\n", __func__
);
1182 memcpy(device
->scsi3addr
, scsi3addr
, sizeof(device
->scsi3addr
));
1183 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
1184 list_add_tail(&device
->offline_list
, &h
->offline_device_list
);
1185 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1188 /* Print a message explaining various offline volume states */
1189 static void hpsa_show_volume_status(struct ctlr_info
*h
,
1190 struct hpsa_scsi_dev_t
*sd
)
1192 if (sd
->volume_offline
== HPSA_VPD_LV_STATUS_UNSUPPORTED
)
1193 dev_info(&h
->pdev
->dev
,
1194 "C%d:B%d:T%d:L%d Volume status is not available through vital product data pages.\n",
1195 h
->scsi_host
->host_no
,
1196 sd
->bus
, sd
->target
, sd
->lun
);
1197 switch (sd
->volume_offline
) {
1200 case HPSA_LV_UNDERGOING_ERASE
:
1201 dev_info(&h
->pdev
->dev
,
1202 "C%d:B%d:T%d:L%d Volume is undergoing background erase process.\n",
1203 h
->scsi_host
->host_no
,
1204 sd
->bus
, sd
->target
, sd
->lun
);
1206 case HPSA_LV_UNDERGOING_RPI
:
1207 dev_info(&h
->pdev
->dev
,
1208 "C%d:B%d:T%d:L%d Volume is undergoing rapid parity initialization process.\n",
1209 h
->scsi_host
->host_no
,
1210 sd
->bus
, sd
->target
, sd
->lun
);
1212 case HPSA_LV_PENDING_RPI
:
1213 dev_info(&h
->pdev
->dev
,
1214 "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n",
1215 h
->scsi_host
->host_no
,
1216 sd
->bus
, sd
->target
, sd
->lun
);
1218 case HPSA_LV_ENCRYPTED_NO_KEY
:
1219 dev_info(&h
->pdev
->dev
,
1220 "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because key is not present.\n",
1221 h
->scsi_host
->host_no
,
1222 sd
->bus
, sd
->target
, sd
->lun
);
1224 case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER
:
1225 dev_info(&h
->pdev
->dev
,
1226 "C%d:B%d:T%d:L%d Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.\n",
1227 h
->scsi_host
->host_no
,
1228 sd
->bus
, sd
->target
, sd
->lun
);
1230 case HPSA_LV_UNDERGOING_ENCRYPTION
:
1231 dev_info(&h
->pdev
->dev
,
1232 "C%d:B%d:T%d:L%d Volume is undergoing encryption process.\n",
1233 h
->scsi_host
->host_no
,
1234 sd
->bus
, sd
->target
, sd
->lun
);
1236 case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING
:
1237 dev_info(&h
->pdev
->dev
,
1238 "C%d:B%d:T%d:L%d Volume is undergoing encryption re-keying process.\n",
1239 h
->scsi_host
->host_no
,
1240 sd
->bus
, sd
->target
, sd
->lun
);
1242 case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER
:
1243 dev_info(&h
->pdev
->dev
,
1244 "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because controller does not have encryption enabled.\n",
1245 h
->scsi_host
->host_no
,
1246 sd
->bus
, sd
->target
, sd
->lun
);
1248 case HPSA_LV_PENDING_ENCRYPTION
:
1249 dev_info(&h
->pdev
->dev
,
1250 "C%d:B%d:T%d:L%d Volume is pending migration to encrypted state, but process has not started.\n",
1251 h
->scsi_host
->host_no
,
1252 sd
->bus
, sd
->target
, sd
->lun
);
1254 case HPSA_LV_PENDING_ENCRYPTION_REKEYING
:
1255 dev_info(&h
->pdev
->dev
,
1256 "C%d:B%d:T%d:L%d Volume is encrypted and is pending encryption rekeying.\n",
1257 h
->scsi_host
->host_no
,
1258 sd
->bus
, sd
->target
, sd
->lun
);
1263 static void adjust_hpsa_scsi_table(struct ctlr_info
*h
, int hostno
,
1264 struct hpsa_scsi_dev_t
*sd
[], int nsds
)
1266 /* sd contains scsi3 addresses and devtypes, and inquiry
1267 * data. This function takes what's in sd to be the current
1268 * reality and updates h->dev[] to reflect that reality.
1270 int i
, entry
, device_change
, changes
= 0;
1271 struct hpsa_scsi_dev_t
*csd
;
1272 unsigned long flags
;
1273 struct hpsa_scsi_dev_t
**added
, **removed
;
1274 int nadded
, nremoved
;
1275 struct Scsi_Host
*sh
= NULL
;
1277 added
= kzalloc(sizeof(*added
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
1278 removed
= kzalloc(sizeof(*removed
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
1280 if (!added
|| !removed
) {
1281 dev_warn(&h
->pdev
->dev
, "out of memory in "
1282 "adjust_hpsa_scsi_table\n");
1286 spin_lock_irqsave(&h
->devlock
, flags
);
1288 /* find any devices in h->dev[] that are not in
1289 * sd[] and remove them from h->dev[], and for any
1290 * devices which have changed, remove the old device
1291 * info and add the new device info.
1292 * If minor device attributes change, just update
1293 * the existing device structure.
1298 while (i
< h
->ndevices
) {
1300 device_change
= hpsa_scsi_find_entry(csd
, sd
, nsds
, &entry
);
1301 if (device_change
== DEVICE_NOT_FOUND
) {
1303 hpsa_scsi_remove_entry(h
, hostno
, i
,
1304 removed
, &nremoved
);
1305 continue; /* remove ^^^, hence i not incremented */
1306 } else if (device_change
== DEVICE_CHANGED
) {
1308 hpsa_scsi_replace_entry(h
, hostno
, i
, sd
[entry
],
1309 added
, &nadded
, removed
, &nremoved
);
1310 /* Set it to NULL to prevent it from being freed
1311 * at the bottom of hpsa_update_scsi_devices()
1314 } else if (device_change
== DEVICE_UPDATED
) {
1315 hpsa_scsi_update_entry(h
, hostno
, i
, sd
[entry
]);
1320 /* Now, make sure every device listed in sd[] is also
1321 * listed in h->dev[], adding them if they aren't found
1324 for (i
= 0; i
< nsds
; i
++) {
1325 if (!sd
[i
]) /* if already added above. */
1328 /* Don't add devices which are NOT READY, FORMAT IN PROGRESS
1329 * as the SCSI mid-layer does not handle such devices well.
1330 * It relentlessly loops sending TUR at 3Hz, then READ(10)
1331 * at 160Hz, and prevents the system from coming up.
1333 if (sd
[i
]->volume_offline
) {
1334 hpsa_show_volume_status(h
, sd
[i
]);
1335 dev_info(&h
->pdev
->dev
, "c%db%dt%dl%d: temporarily offline\n",
1336 h
->scsi_host
->host_no
,
1337 sd
[i
]->bus
, sd
[i
]->target
, sd
[i
]->lun
);
1341 device_change
= hpsa_scsi_find_entry(sd
[i
], h
->dev
,
1342 h
->ndevices
, &entry
);
1343 if (device_change
== DEVICE_NOT_FOUND
) {
1345 if (hpsa_scsi_add_entry(h
, hostno
, sd
[i
],
1346 added
, &nadded
) != 0)
1348 sd
[i
] = NULL
; /* prevent from being freed later. */
1349 } else if (device_change
== DEVICE_CHANGED
) {
1350 /* should never happen... */
1352 dev_warn(&h
->pdev
->dev
,
1353 "device unexpectedly changed.\n");
1354 /* but if it does happen, we just ignore that device */
1357 spin_unlock_irqrestore(&h
->devlock
, flags
);
1359 /* Monitor devices which are in one of several NOT READY states to be
1360 * brought online later. This must be done without holding h->devlock,
1361 * so don't touch h->dev[]
1363 for (i
= 0; i
< nsds
; i
++) {
1364 if (!sd
[i
]) /* if already added above. */
1366 if (sd
[i
]->volume_offline
)
1367 hpsa_monitor_offline_device(h
, sd
[i
]->scsi3addr
);
1370 /* Don't notify scsi mid layer of any changes the first time through
1371 * (or if there are no changes) scsi_scan_host will do it later the
1372 * first time through.
1374 if (hostno
== -1 || !changes
)
1378 /* Notify scsi mid layer of any removed devices */
1379 for (i
= 0; i
< nremoved
; i
++) {
1380 struct scsi_device
*sdev
=
1381 scsi_device_lookup(sh
, removed
[i
]->bus
,
1382 removed
[i
]->target
, removed
[i
]->lun
);
1384 scsi_remove_device(sdev
);
1385 scsi_device_put(sdev
);
1387 /* We don't expect to get here.
1388 * future cmds to this device will get selection
1389 * timeout as if the device was gone.
1391 dev_warn(&h
->pdev
->dev
, "didn't find c%db%dt%dl%d "
1392 " for removal.", hostno
, removed
[i
]->bus
,
1393 removed
[i
]->target
, removed
[i
]->lun
);
1399 /* Notify scsi mid layer of any added devices */
1400 for (i
= 0; i
< nadded
; i
++) {
1401 if (scsi_add_device(sh
, added
[i
]->bus
,
1402 added
[i
]->target
, added
[i
]->lun
) == 0)
1404 dev_warn(&h
->pdev
->dev
, "scsi_add_device c%db%dt%dl%d failed, "
1405 "device not added.\n", hostno
, added
[i
]->bus
,
1406 added
[i
]->target
, added
[i
]->lun
);
1407 /* now we have to remove it from h->dev,
1408 * since it didn't get added to scsi mid layer
1410 fixup_botched_add(h
, added
[i
]);
1419 * Lookup bus/target/lun and return corresponding struct hpsa_scsi_dev_t *
1420 * Assume's h->devlock is held.
1422 static struct hpsa_scsi_dev_t
*lookup_hpsa_scsi_dev(struct ctlr_info
*h
,
1423 int bus
, int target
, int lun
)
1426 struct hpsa_scsi_dev_t
*sd
;
1428 for (i
= 0; i
< h
->ndevices
; i
++) {
1430 if (sd
->bus
== bus
&& sd
->target
== target
&& sd
->lun
== lun
)
1436 /* link sdev->hostdata to our per-device structure. */
1437 static int hpsa_slave_alloc(struct scsi_device
*sdev
)
1439 struct hpsa_scsi_dev_t
*sd
;
1440 unsigned long flags
;
1441 struct ctlr_info
*h
;
1443 h
= sdev_to_hba(sdev
);
1444 spin_lock_irqsave(&h
->devlock
, flags
);
1445 sd
= lookup_hpsa_scsi_dev(h
, sdev_channel(sdev
),
1446 sdev_id(sdev
), sdev
->lun
);
1448 sdev
->hostdata
= sd
;
1449 spin_unlock_irqrestore(&h
->devlock
, flags
);
1453 static void hpsa_slave_destroy(struct scsi_device
*sdev
)
1455 /* nothing to do. */
1458 static void hpsa_free_sg_chain_blocks(struct ctlr_info
*h
)
1462 if (!h
->cmd_sg_list
)
1464 for (i
= 0; i
< h
->nr_cmds
; i
++) {
1465 kfree(h
->cmd_sg_list
[i
]);
1466 h
->cmd_sg_list
[i
] = NULL
;
1468 kfree(h
->cmd_sg_list
);
1469 h
->cmd_sg_list
= NULL
;
1472 static int hpsa_allocate_sg_chain_blocks(struct ctlr_info
*h
)
1476 if (h
->chainsize
<= 0)
1479 h
->cmd_sg_list
= kzalloc(sizeof(*h
->cmd_sg_list
) * h
->nr_cmds
,
1481 if (!h
->cmd_sg_list
)
1483 for (i
= 0; i
< h
->nr_cmds
; i
++) {
1484 h
->cmd_sg_list
[i
] = kmalloc(sizeof(*h
->cmd_sg_list
[i
]) *
1485 h
->chainsize
, GFP_KERNEL
);
1486 if (!h
->cmd_sg_list
[i
])
1492 hpsa_free_sg_chain_blocks(h
);
1496 static int hpsa_map_sg_chain_block(struct ctlr_info
*h
,
1497 struct CommandList
*c
)
1499 struct SGDescriptor
*chain_sg
, *chain_block
;
1502 chain_sg
= &c
->SG
[h
->max_cmd_sg_entries
- 1];
1503 chain_block
= h
->cmd_sg_list
[c
->cmdindex
];
1504 chain_sg
->Ext
= HPSA_SG_CHAIN
;
1505 chain_sg
->Len
= sizeof(*chain_sg
) *
1506 (c
->Header
.SGTotal
- h
->max_cmd_sg_entries
);
1507 temp64
= pci_map_single(h
->pdev
, chain_block
, chain_sg
->Len
,
1509 if (dma_mapping_error(&h
->pdev
->dev
, temp64
)) {
1510 /* prevent subsequent unmapping */
1511 chain_sg
->Addr
.lower
= 0;
1512 chain_sg
->Addr
.upper
= 0;
1515 chain_sg
->Addr
.lower
= (u32
) (temp64
& 0x0FFFFFFFFULL
);
1516 chain_sg
->Addr
.upper
= (u32
) ((temp64
>> 32) & 0x0FFFFFFFFULL
);
1520 static void hpsa_unmap_sg_chain_block(struct ctlr_info
*h
,
1521 struct CommandList
*c
)
1523 struct SGDescriptor
*chain_sg
;
1524 union u64bit temp64
;
1526 if (c
->Header
.SGTotal
<= h
->max_cmd_sg_entries
)
1529 chain_sg
= &c
->SG
[h
->max_cmd_sg_entries
- 1];
1530 temp64
.val32
.lower
= chain_sg
->Addr
.lower
;
1531 temp64
.val32
.upper
= chain_sg
->Addr
.upper
;
1532 pci_unmap_single(h
->pdev
, temp64
.val
, chain_sg
->Len
, PCI_DMA_TODEVICE
);
1536 /* Decode the various types of errors on ioaccel2 path.
1537 * Return 1 for any error that should generate a RAID path retry.
1538 * Return 0 for errors that don't require a RAID path retry.
1540 static int handle_ioaccel_mode2_error(struct ctlr_info
*h
,
1541 struct CommandList
*c
,
1542 struct scsi_cmnd
*cmd
,
1543 struct io_accel2_cmd
*c2
)
1548 switch (c2
->error_data
.serv_response
) {
1549 case IOACCEL2_SERV_RESPONSE_COMPLETE
:
1550 switch (c2
->error_data
.status
) {
1551 case IOACCEL2_STATUS_SR_TASK_COMP_GOOD
:
1553 case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND
:
1554 dev_warn(&h
->pdev
->dev
,
1555 "%s: task complete with check condition.\n",
1556 "HP SSD Smart Path");
1557 if (c2
->error_data
.data_present
!=
1558 IOACCEL2_SENSE_DATA_PRESENT
)
1560 /* copy the sense data */
1561 data_len
= c2
->error_data
.sense_data_len
;
1562 if (data_len
> SCSI_SENSE_BUFFERSIZE
)
1563 data_len
= SCSI_SENSE_BUFFERSIZE
;
1564 if (data_len
> sizeof(c2
->error_data
.sense_data_buff
))
1566 sizeof(c2
->error_data
.sense_data_buff
);
1567 memcpy(cmd
->sense_buffer
,
1568 c2
->error_data
.sense_data_buff
, data_len
);
1569 cmd
->result
|= SAM_STAT_CHECK_CONDITION
;
1572 case IOACCEL2_STATUS_SR_TASK_COMP_BUSY
:
1573 dev_warn(&h
->pdev
->dev
,
1574 "%s: task complete with BUSY status.\n",
1575 "HP SSD Smart Path");
1578 case IOACCEL2_STATUS_SR_TASK_COMP_RES_CON
:
1579 dev_warn(&h
->pdev
->dev
,
1580 "%s: task complete with reservation conflict.\n",
1581 "HP SSD Smart Path");
1584 case IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL
:
1585 /* Make scsi midlayer do unlimited retries */
1586 cmd
->result
= DID_IMM_RETRY
<< 16;
1588 case IOACCEL2_STATUS_SR_TASK_COMP_ABORTED
:
1589 dev_warn(&h
->pdev
->dev
,
1590 "%s: task complete with aborted status.\n",
1591 "HP SSD Smart Path");
1595 dev_warn(&h
->pdev
->dev
,
1596 "%s: task complete with unrecognized status: 0x%02x\n",
1597 "HP SSD Smart Path", c2
->error_data
.status
);
1602 case IOACCEL2_SERV_RESPONSE_FAILURE
:
1603 /* don't expect to get here. */
1604 dev_warn(&h
->pdev
->dev
,
1605 "unexpected delivery or target failure, status = 0x%02x\n",
1606 c2
->error_data
.status
);
1609 case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE
:
1611 case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS
:
1613 case IOACCEL2_SERV_RESPONSE_TMF_REJECTED
:
1614 dev_warn(&h
->pdev
->dev
, "task management function rejected.\n");
1617 case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN
:
1618 dev_warn(&h
->pdev
->dev
, "task management function invalid LUN\n");
1621 dev_warn(&h
->pdev
->dev
,
1622 "%s: Unrecognized server response: 0x%02x\n",
1623 "HP SSD Smart Path",
1624 c2
->error_data
.serv_response
);
1629 return retry
; /* retry on raid path? */
1632 static void process_ioaccel2_completion(struct ctlr_info
*h
,
1633 struct CommandList
*c
, struct scsi_cmnd
*cmd
,
1634 struct hpsa_scsi_dev_t
*dev
)
1636 struct io_accel2_cmd
*c2
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
1639 /* check for good status */
1640 if (likely(c2
->error_data
.serv_response
== 0 &&
1641 c2
->error_data
.status
== 0)) {
1643 cmd
->scsi_done(cmd
);
1647 /* Any RAID offload error results in retry which will use
1648 * the normal I/O path so the controller can handle whatever's
1651 if (is_logical_dev_addr_mode(dev
->scsi3addr
) &&
1652 c2
->error_data
.serv_response
==
1653 IOACCEL2_SERV_RESPONSE_FAILURE
) {
1654 if (c2
->error_data
.status
==
1655 IOACCEL2_STATUS_SR_IOACCEL_DISABLED
)
1656 dev_warn(&h
->pdev
->dev
,
1657 "%s: Path is unavailable, retrying on standard path.\n",
1658 "HP SSD Smart Path");
1660 dev_warn(&h
->pdev
->dev
,
1661 "%s: Error 0x%02x, retrying on standard path.\n",
1662 "HP SSD Smart Path", c2
->error_data
.status
);
1664 dev
->offload_enabled
= 0;
1665 h
->drv_req_rescan
= 1; /* schedule controller for a rescan */
1666 cmd
->result
= DID_SOFT_ERROR
<< 16;
1668 cmd
->scsi_done(cmd
);
1671 raid_retry
= handle_ioaccel_mode2_error(h
, c
, cmd
, c2
);
1672 /* If error found, disable Smart Path, schedule a rescan,
1673 * and force a retry on the standard path.
1676 dev_warn(&h
->pdev
->dev
, "%s: Retrying on standard path.\n",
1677 "HP SSD Smart Path");
1678 dev
->offload_enabled
= 0; /* Disable Smart Path */
1679 h
->drv_req_rescan
= 1; /* schedule controller rescan */
1680 cmd
->result
= DID_SOFT_ERROR
<< 16;
1683 cmd
->scsi_done(cmd
);
1686 static void complete_scsi_command(struct CommandList
*cp
)
1688 struct scsi_cmnd
*cmd
;
1689 struct ctlr_info
*h
;
1690 struct ErrorInfo
*ei
;
1691 struct hpsa_scsi_dev_t
*dev
;
1693 unsigned char sense_key
;
1694 unsigned char asc
; /* additional sense code */
1695 unsigned char ascq
; /* additional sense code qualifier */
1696 unsigned long sense_data_size
;
1699 cmd
= (struct scsi_cmnd
*) cp
->scsi_cmd
;
1701 dev
= cmd
->device
->hostdata
;
1703 scsi_dma_unmap(cmd
); /* undo the DMA mappings */
1704 if ((cp
->cmd_type
== CMD_SCSI
) &&
1705 (cp
->Header
.SGTotal
> h
->max_cmd_sg_entries
))
1706 hpsa_unmap_sg_chain_block(h
, cp
);
1708 cmd
->result
= (DID_OK
<< 16); /* host byte */
1709 cmd
->result
|= (COMMAND_COMPLETE
<< 8); /* msg byte */
1711 if (cp
->cmd_type
== CMD_IOACCEL2
)
1712 return process_ioaccel2_completion(h
, cp
, cmd
, dev
);
1714 cmd
->result
|= ei
->ScsiStatus
;
1716 /* copy the sense data whether we need to or not. */
1717 if (SCSI_SENSE_BUFFERSIZE
< sizeof(ei
->SenseInfo
))
1718 sense_data_size
= SCSI_SENSE_BUFFERSIZE
;
1720 sense_data_size
= sizeof(ei
->SenseInfo
);
1721 if (ei
->SenseLen
< sense_data_size
)
1722 sense_data_size
= ei
->SenseLen
;
1724 memcpy(cmd
->sense_buffer
, ei
->SenseInfo
, sense_data_size
);
1725 scsi_set_resid(cmd
, ei
->ResidualCnt
);
1727 if (ei
->CommandStatus
== 0) {
1729 cmd
->scsi_done(cmd
);
1733 /* For I/O accelerator commands, copy over some fields to the normal
1734 * CISS header used below for error handling.
1736 if (cp
->cmd_type
== CMD_IOACCEL1
) {
1737 struct io_accel1_cmd
*c
= &h
->ioaccel_cmd_pool
[cp
->cmdindex
];
1738 cp
->Header
.SGList
= cp
->Header
.SGTotal
= scsi_sg_count(cmd
);
1739 cp
->Request
.CDBLen
= c
->io_flags
& IOACCEL1_IOFLAGS_CDBLEN_MASK
;
1740 cp
->Header
.Tag
.lower
= c
->Tag
.lower
;
1741 cp
->Header
.Tag
.upper
= c
->Tag
.upper
;
1742 memcpy(cp
->Header
.LUN
.LunAddrBytes
, c
->CISS_LUN
, 8);
1743 memcpy(cp
->Request
.CDB
, c
->CDB
, cp
->Request
.CDBLen
);
1745 /* Any RAID offload error results in retry which will use
1746 * the normal I/O path so the controller can handle whatever's
1749 if (is_logical_dev_addr_mode(dev
->scsi3addr
)) {
1750 if (ei
->CommandStatus
== CMD_IOACCEL_DISABLED
)
1751 dev
->offload_enabled
= 0;
1752 cmd
->result
= DID_SOFT_ERROR
<< 16;
1754 cmd
->scsi_done(cmd
);
1759 /* an error has occurred */
1760 switch (ei
->CommandStatus
) {
1762 case CMD_TARGET_STATUS
:
1763 if (ei
->ScsiStatus
) {
1765 sense_key
= 0xf & ei
->SenseInfo
[2];
1766 /* Get additional sense code */
1767 asc
= ei
->SenseInfo
[12];
1768 /* Get addition sense code qualifier */
1769 ascq
= ei
->SenseInfo
[13];
1772 if (ei
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
) {
1773 if (check_for_unit_attention(h
, cp
))
1775 if (sense_key
== ILLEGAL_REQUEST
) {
1777 * SCSI REPORT_LUNS is commonly unsupported on
1778 * Smart Array. Suppress noisy complaint.
1780 if (cp
->Request
.CDB
[0] == REPORT_LUNS
)
1783 /* If ASC/ASCQ indicate Logical Unit
1784 * Not Supported condition,
1786 if ((asc
== 0x25) && (ascq
== 0x0)) {
1787 dev_warn(&h
->pdev
->dev
, "cp %p "
1788 "has check condition\n", cp
);
1793 if (sense_key
== NOT_READY
) {
1794 /* If Sense is Not Ready, Logical Unit
1795 * Not ready, Manual Intervention
1798 if ((asc
== 0x04) && (ascq
== 0x03)) {
1799 dev_warn(&h
->pdev
->dev
, "cp %p "
1800 "has check condition: unit "
1801 "not ready, manual "
1802 "intervention required\n", cp
);
1806 if (sense_key
== ABORTED_COMMAND
) {
1807 /* Aborted command is retryable */
1808 dev_warn(&h
->pdev
->dev
, "cp %p "
1809 "has check condition: aborted command: "
1810 "ASC: 0x%x, ASCQ: 0x%x\n",
1812 cmd
->result
|= DID_SOFT_ERROR
<< 16;
1815 /* Must be some other type of check condition */
1816 dev_dbg(&h
->pdev
->dev
, "cp %p has check condition: "
1818 "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
1819 "Returning result: 0x%x, "
1820 "cmd=[%02x %02x %02x %02x %02x "
1821 "%02x %02x %02x %02x %02x %02x "
1822 "%02x %02x %02x %02x %02x]\n",
1823 cp
, sense_key
, asc
, ascq
,
1825 cmd
->cmnd
[0], cmd
->cmnd
[1],
1826 cmd
->cmnd
[2], cmd
->cmnd
[3],
1827 cmd
->cmnd
[4], cmd
->cmnd
[5],
1828 cmd
->cmnd
[6], cmd
->cmnd
[7],
1829 cmd
->cmnd
[8], cmd
->cmnd
[9],
1830 cmd
->cmnd
[10], cmd
->cmnd
[11],
1831 cmd
->cmnd
[12], cmd
->cmnd
[13],
1832 cmd
->cmnd
[14], cmd
->cmnd
[15]);
1837 /* Problem was not a check condition
1838 * Pass it up to the upper layers...
1840 if (ei
->ScsiStatus
) {
1841 dev_warn(&h
->pdev
->dev
, "cp %p has status 0x%x "
1842 "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
1843 "Returning result: 0x%x\n",
1845 sense_key
, asc
, ascq
,
1847 } else { /* scsi status is zero??? How??? */
1848 dev_warn(&h
->pdev
->dev
, "cp %p SCSI status was 0. "
1849 "Returning no connection.\n", cp
),
1851 /* Ordinarily, this case should never happen,
1852 * but there is a bug in some released firmware
1853 * revisions that allows it to happen if, for
1854 * example, a 4100 backplane loses power and
1855 * the tape drive is in it. We assume that
1856 * it's a fatal error of some kind because we
1857 * can't show that it wasn't. We will make it
1858 * look like selection timeout since that is
1859 * the most common reason for this to occur,
1860 * and it's severe enough.
1863 cmd
->result
= DID_NO_CONNECT
<< 16;
1867 case CMD_DATA_UNDERRUN
: /* let mid layer handle it. */
1869 case CMD_DATA_OVERRUN
:
1870 dev_warn(&h
->pdev
->dev
, "cp %p has"
1871 " completed with data overrun "
1875 /* print_bytes(cp, sizeof(*cp), 1, 0);
1877 /* We get CMD_INVALID if you address a non-existent device
1878 * instead of a selection timeout (no response). You will
1879 * see this if you yank out a drive, then try to access it.
1880 * This is kind of a shame because it means that any other
1881 * CMD_INVALID (e.g. driver bug) will get interpreted as a
1882 * missing target. */
1883 cmd
->result
= DID_NO_CONNECT
<< 16;
1886 case CMD_PROTOCOL_ERR
:
1887 cmd
->result
= DID_ERROR
<< 16;
1888 dev_warn(&h
->pdev
->dev
, "cp %p has "
1889 "protocol error\n", cp
);
1891 case CMD_HARDWARE_ERR
:
1892 cmd
->result
= DID_ERROR
<< 16;
1893 dev_warn(&h
->pdev
->dev
, "cp %p had hardware error\n", cp
);
1895 case CMD_CONNECTION_LOST
:
1896 cmd
->result
= DID_ERROR
<< 16;
1897 dev_warn(&h
->pdev
->dev
, "cp %p had connection lost\n", cp
);
1900 cmd
->result
= DID_ABORT
<< 16;
1901 dev_warn(&h
->pdev
->dev
, "cp %p was aborted with status 0x%x\n",
1902 cp
, ei
->ScsiStatus
);
1904 case CMD_ABORT_FAILED
:
1905 cmd
->result
= DID_ERROR
<< 16;
1906 dev_warn(&h
->pdev
->dev
, "cp %p reports abort failed\n", cp
);
1908 case CMD_UNSOLICITED_ABORT
:
1909 cmd
->result
= DID_SOFT_ERROR
<< 16; /* retry the command */
1910 dev_warn(&h
->pdev
->dev
, "cp %p aborted due to an unsolicited "
1914 cmd
->result
= DID_TIME_OUT
<< 16;
1915 dev_warn(&h
->pdev
->dev
, "cp %p timedout\n", cp
);
1917 case CMD_UNABORTABLE
:
1918 cmd
->result
= DID_ERROR
<< 16;
1919 dev_warn(&h
->pdev
->dev
, "Command unabortable\n");
1921 case CMD_IOACCEL_DISABLED
:
1922 /* This only handles the direct pass-through case since RAID
1923 * offload is handled above. Just attempt a retry.
1925 cmd
->result
= DID_SOFT_ERROR
<< 16;
1926 dev_warn(&h
->pdev
->dev
,
1927 "cp %p had HP SSD Smart Path error\n", cp
);
1930 cmd
->result
= DID_ERROR
<< 16;
1931 dev_warn(&h
->pdev
->dev
, "cp %p returned unknown status %x\n",
1932 cp
, ei
->CommandStatus
);
1935 cmd
->scsi_done(cmd
);
1938 static void hpsa_pci_unmap(struct pci_dev
*pdev
,
1939 struct CommandList
*c
, int sg_used
, int data_direction
)
1942 union u64bit addr64
;
1944 for (i
= 0; i
< sg_used
; i
++) {
1945 addr64
.val32
.lower
= c
->SG
[i
].Addr
.lower
;
1946 addr64
.val32
.upper
= c
->SG
[i
].Addr
.upper
;
1947 pci_unmap_single(pdev
, (dma_addr_t
) addr64
.val
, c
->SG
[i
].Len
,
1952 static int hpsa_map_one(struct pci_dev
*pdev
,
1953 struct CommandList
*cp
,
1960 if (buflen
== 0 || data_direction
== PCI_DMA_NONE
) {
1961 cp
->Header
.SGList
= 0;
1962 cp
->Header
.SGTotal
= 0;
1966 addr64
= (u64
) pci_map_single(pdev
, buf
, buflen
, data_direction
);
1967 if (dma_mapping_error(&pdev
->dev
, addr64
)) {
1968 /* Prevent subsequent unmap of something never mapped */
1969 cp
->Header
.SGList
= 0;
1970 cp
->Header
.SGTotal
= 0;
1973 cp
->SG
[0].Addr
.lower
=
1974 (u32
) (addr64
& (u64
) 0x00000000FFFFFFFF);
1975 cp
->SG
[0].Addr
.upper
=
1976 (u32
) ((addr64
>> 32) & (u64
) 0x00000000FFFFFFFF);
1977 cp
->SG
[0].Len
= buflen
;
1978 cp
->SG
[0].Ext
= HPSA_SG_LAST
; /* we are not chaining */
1979 cp
->Header
.SGList
= (u8
) 1; /* no. SGs contig in this cmd */
1980 cp
->Header
.SGTotal
= (u16
) 1; /* total sgs in this cmd list */
1984 static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info
*h
,
1985 struct CommandList
*c
)
1987 DECLARE_COMPLETION_ONSTACK(wait
);
1990 enqueue_cmd_and_start_io(h
, c
);
1991 wait_for_completion(&wait
);
1994 static void hpsa_scsi_do_simple_cmd_core_if_no_lockup(struct ctlr_info
*h
,
1995 struct CommandList
*c
)
1997 unsigned long flags
;
1999 /* If controller lockup detected, fake a hardware error. */
2000 spin_lock_irqsave(&h
->lock
, flags
);
2001 if (unlikely(h
->lockup_detected
)) {
2002 spin_unlock_irqrestore(&h
->lock
, flags
);
2003 c
->err_info
->CommandStatus
= CMD_HARDWARE_ERR
;
2005 spin_unlock_irqrestore(&h
->lock
, flags
);
2006 hpsa_scsi_do_simple_cmd_core(h
, c
);
2010 #define MAX_DRIVER_CMD_RETRIES 25
2011 static void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info
*h
,
2012 struct CommandList
*c
, int data_direction
)
2014 int backoff_time
= 10, retry_count
= 0;
2017 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
2018 hpsa_scsi_do_simple_cmd_core(h
, c
);
2020 if (retry_count
> 3) {
2021 msleep(backoff_time
);
2022 if (backoff_time
< 1000)
2025 } while ((check_for_unit_attention(h
, c
) ||
2026 check_for_busy(h
, c
)) &&
2027 retry_count
<= MAX_DRIVER_CMD_RETRIES
);
2028 hpsa_pci_unmap(h
->pdev
, c
, 1, data_direction
);
2031 static void hpsa_print_cmd(struct ctlr_info
*h
, char *txt
,
2032 struct CommandList
*c
)
2034 const u8
*cdb
= c
->Request
.CDB
;
2035 const u8
*lun
= c
->Header
.LUN
.LunAddrBytes
;
2037 dev_warn(&h
->pdev
->dev
, "%s: LUN:%02x%02x%02x%02x%02x%02x%02x%02x"
2038 " CDB:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
2039 txt
, lun
[0], lun
[1], lun
[2], lun
[3],
2040 lun
[4], lun
[5], lun
[6], lun
[7],
2041 cdb
[0], cdb
[1], cdb
[2], cdb
[3],
2042 cdb
[4], cdb
[5], cdb
[6], cdb
[7],
2043 cdb
[8], cdb
[9], cdb
[10], cdb
[11],
2044 cdb
[12], cdb
[13], cdb
[14], cdb
[15]);
2047 static void hpsa_scsi_interpret_error(struct ctlr_info
*h
,
2048 struct CommandList
*cp
)
2050 const struct ErrorInfo
*ei
= cp
->err_info
;
2051 struct device
*d
= &cp
->h
->pdev
->dev
;
2052 const u8
*sd
= ei
->SenseInfo
;
2054 switch (ei
->CommandStatus
) {
2055 case CMD_TARGET_STATUS
:
2056 hpsa_print_cmd(h
, "SCSI status", cp
);
2057 if (ei
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
)
2058 dev_warn(d
, "SCSI Status = 02, Sense key = %02x, ASC = %02x, ASCQ = %02x\n",
2059 sd
[2] & 0x0f, sd
[12], sd
[13]);
2061 dev_warn(d
, "SCSI Status = %02x\n", ei
->ScsiStatus
);
2062 if (ei
->ScsiStatus
== 0)
2063 dev_warn(d
, "SCSI status is abnormally zero. "
2064 "(probably indicates selection timeout "
2065 "reported incorrectly due to a known "
2066 "firmware bug, circa July, 2001.)\n");
2068 case CMD_DATA_UNDERRUN
: /* let mid layer handle it. */
2070 case CMD_DATA_OVERRUN
:
2071 hpsa_print_cmd(h
, "overrun condition", cp
);
2074 /* controller unfortunately reports SCSI passthru's
2075 * to non-existent targets as invalid commands.
2077 hpsa_print_cmd(h
, "invalid command", cp
);
2078 dev_warn(d
, "probably means device no longer present\n");
2081 case CMD_PROTOCOL_ERR
:
2082 hpsa_print_cmd(h
, "protocol error", cp
);
2084 case CMD_HARDWARE_ERR
:
2085 hpsa_print_cmd(h
, "hardware error", cp
);
2087 case CMD_CONNECTION_LOST
:
2088 hpsa_print_cmd(h
, "connection lost", cp
);
2091 hpsa_print_cmd(h
, "aborted", cp
);
2093 case CMD_ABORT_FAILED
:
2094 hpsa_print_cmd(h
, "abort failed", cp
);
2096 case CMD_UNSOLICITED_ABORT
:
2097 hpsa_print_cmd(h
, "unsolicited abort", cp
);
2100 hpsa_print_cmd(h
, "timed out", cp
);
2102 case CMD_UNABORTABLE
:
2103 hpsa_print_cmd(h
, "unabortable", cp
);
2106 hpsa_print_cmd(h
, "unknown status", cp
);
2107 dev_warn(d
, "Unknown command status %x\n",
2112 static int hpsa_scsi_do_inquiry(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2113 u16 page
, unsigned char *buf
,
2114 unsigned char bufsize
)
2117 struct CommandList
*c
;
2118 struct ErrorInfo
*ei
;
2120 c
= cmd_special_alloc(h
);
2122 if (c
== NULL
) { /* trouble... */
2123 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2127 if (fill_cmd(c
, HPSA_INQUIRY
, h
, buf
, bufsize
,
2128 page
, scsi3addr
, TYPE_CMD
)) {
2132 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2134 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2135 hpsa_scsi_interpret_error(h
, c
);
2139 cmd_special_free(h
, c
);
2143 static int hpsa_bmic_ctrl_mode_sense(struct ctlr_info
*h
,
2144 unsigned char *scsi3addr
, unsigned char page
,
2145 struct bmic_controller_parameters
*buf
, size_t bufsize
)
2148 struct CommandList
*c
;
2149 struct ErrorInfo
*ei
;
2151 c
= cmd_special_alloc(h
);
2153 if (c
== NULL
) { /* trouble... */
2154 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2158 if (fill_cmd(c
, BMIC_SENSE_CONTROLLER_PARAMETERS
, h
, buf
, bufsize
,
2159 page
, scsi3addr
, TYPE_CMD
)) {
2163 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2165 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2166 hpsa_scsi_interpret_error(h
, c
);
2170 cmd_special_free(h
, c
);
2174 static int hpsa_send_reset(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2178 struct CommandList
*c
;
2179 struct ErrorInfo
*ei
;
2181 c
= cmd_special_alloc(h
);
2183 if (c
== NULL
) { /* trouble... */
2184 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2188 /* fill_cmd can't fail here, no data buffer to map. */
2189 (void) fill_cmd(c
, HPSA_DEVICE_RESET_MSG
, h
, NULL
, 0, 0,
2190 scsi3addr
, TYPE_MSG
);
2191 c
->Request
.CDB
[1] = reset_type
; /* fill_cmd defaults to LUN reset */
2192 hpsa_scsi_do_simple_cmd_core(h
, c
);
2193 /* no unmap needed here because no data xfer. */
2196 if (ei
->CommandStatus
!= 0) {
2197 hpsa_scsi_interpret_error(h
, c
);
2200 cmd_special_free(h
, c
);
2204 static void hpsa_get_raid_level(struct ctlr_info
*h
,
2205 unsigned char *scsi3addr
, unsigned char *raid_level
)
2210 *raid_level
= RAID_UNKNOWN
;
2211 buf
= kzalloc(64, GFP_KERNEL
);
2214 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| 0xC1, buf
, 64);
2216 *raid_level
= buf
[8];
2217 if (*raid_level
> RAID_UNKNOWN
)
2218 *raid_level
= RAID_UNKNOWN
;
2223 #define HPSA_MAP_DEBUG
2224 #ifdef HPSA_MAP_DEBUG
2225 static void hpsa_debug_map_buff(struct ctlr_info
*h
, int rc
,
2226 struct raid_map_data
*map_buff
)
2228 struct raid_map_disk_data
*dd
= &map_buff
->data
[0];
2230 u16 map_cnt
, row_cnt
, disks_per_row
;
2235 /* Show details only if debugging has been activated. */
2236 if (h
->raid_offload_debug
< 2)
2239 dev_info(&h
->pdev
->dev
, "structure_size = %u\n",
2240 le32_to_cpu(map_buff
->structure_size
));
2241 dev_info(&h
->pdev
->dev
, "volume_blk_size = %u\n",
2242 le32_to_cpu(map_buff
->volume_blk_size
));
2243 dev_info(&h
->pdev
->dev
, "volume_blk_cnt = 0x%llx\n",
2244 le64_to_cpu(map_buff
->volume_blk_cnt
));
2245 dev_info(&h
->pdev
->dev
, "physicalBlockShift = %u\n",
2246 map_buff
->phys_blk_shift
);
2247 dev_info(&h
->pdev
->dev
, "parity_rotation_shift = %u\n",
2248 map_buff
->parity_rotation_shift
);
2249 dev_info(&h
->pdev
->dev
, "strip_size = %u\n",
2250 le16_to_cpu(map_buff
->strip_size
));
2251 dev_info(&h
->pdev
->dev
, "disk_starting_blk = 0x%llx\n",
2252 le64_to_cpu(map_buff
->disk_starting_blk
));
2253 dev_info(&h
->pdev
->dev
, "disk_blk_cnt = 0x%llx\n",
2254 le64_to_cpu(map_buff
->disk_blk_cnt
));
2255 dev_info(&h
->pdev
->dev
, "data_disks_per_row = %u\n",
2256 le16_to_cpu(map_buff
->data_disks_per_row
));
2257 dev_info(&h
->pdev
->dev
, "metadata_disks_per_row = %u\n",
2258 le16_to_cpu(map_buff
->metadata_disks_per_row
));
2259 dev_info(&h
->pdev
->dev
, "row_cnt = %u\n",
2260 le16_to_cpu(map_buff
->row_cnt
));
2261 dev_info(&h
->pdev
->dev
, "layout_map_count = %u\n",
2262 le16_to_cpu(map_buff
->layout_map_count
));
2263 dev_info(&h
->pdev
->dev
, "flags = %u\n",
2264 le16_to_cpu(map_buff
->flags
));
2265 if (map_buff
->flags
& RAID_MAP_FLAG_ENCRYPT_ON
)
2266 dev_info(&h
->pdev
->dev
, "encrypytion = ON\n");
2268 dev_info(&h
->pdev
->dev
, "encrypytion = OFF\n");
2269 dev_info(&h
->pdev
->dev
, "dekindex = %u\n",
2270 le16_to_cpu(map_buff
->dekindex
));
2272 map_cnt
= le16_to_cpu(map_buff
->layout_map_count
);
2273 for (map
= 0; map
< map_cnt
; map
++) {
2274 dev_info(&h
->pdev
->dev
, "Map%u:\n", map
);
2275 row_cnt
= le16_to_cpu(map_buff
->row_cnt
);
2276 for (row
= 0; row
< row_cnt
; row
++) {
2277 dev_info(&h
->pdev
->dev
, " Row%u:\n", row
);
2279 le16_to_cpu(map_buff
->data_disks_per_row
);
2280 for (col
= 0; col
< disks_per_row
; col
++, dd
++)
2281 dev_info(&h
->pdev
->dev
,
2282 " D%02u: h=0x%04x xor=%u,%u\n",
2283 col
, dd
->ioaccel_handle
,
2284 dd
->xor_mult
[0], dd
->xor_mult
[1]);
2286 le16_to_cpu(map_buff
->metadata_disks_per_row
);
2287 for (col
= 0; col
< disks_per_row
; col
++, dd
++)
2288 dev_info(&h
->pdev
->dev
,
2289 " M%02u: h=0x%04x xor=%u,%u\n",
2290 col
, dd
->ioaccel_handle
,
2291 dd
->xor_mult
[0], dd
->xor_mult
[1]);
2296 static void hpsa_debug_map_buff(__attribute__((unused
)) struct ctlr_info
*h
,
2297 __attribute__((unused
)) int rc
,
2298 __attribute__((unused
)) struct raid_map_data
*map_buff
)
2303 static int hpsa_get_raid_map(struct ctlr_info
*h
,
2304 unsigned char *scsi3addr
, struct hpsa_scsi_dev_t
*this_device
)
2307 struct CommandList
*c
;
2308 struct ErrorInfo
*ei
;
2310 c
= cmd_special_alloc(h
);
2312 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2315 if (fill_cmd(c
, HPSA_GET_RAID_MAP
, h
, &this_device
->raid_map
,
2316 sizeof(this_device
->raid_map
), 0,
2317 scsi3addr
, TYPE_CMD
)) {
2318 dev_warn(&h
->pdev
->dev
, "Out of memory in hpsa_get_raid_map()\n");
2319 cmd_special_free(h
, c
);
2322 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2324 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2325 hpsa_scsi_interpret_error(h
, c
);
2326 cmd_special_free(h
, c
);
2329 cmd_special_free(h
, c
);
2331 /* @todo in the future, dynamically allocate RAID map memory */
2332 if (le32_to_cpu(this_device
->raid_map
.structure_size
) >
2333 sizeof(this_device
->raid_map
)) {
2334 dev_warn(&h
->pdev
->dev
, "RAID map size is too large!\n");
2337 hpsa_debug_map_buff(h
, rc
, &this_device
->raid_map
);
2341 static int hpsa_vpd_page_supported(struct ctlr_info
*h
,
2342 unsigned char scsi3addr
[], u8 page
)
2347 unsigned char *buf
, bufsize
;
2349 buf
= kzalloc(256, GFP_KERNEL
);
2353 /* Get the size of the page list first */
2354 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2355 VPD_PAGE
| HPSA_VPD_SUPPORTED_PAGES
,
2356 buf
, HPSA_VPD_HEADER_SZ
);
2358 goto exit_unsupported
;
2360 if ((pages
+ HPSA_VPD_HEADER_SZ
) <= 255)
2361 bufsize
= pages
+ HPSA_VPD_HEADER_SZ
;
2365 /* Get the whole VPD page list */
2366 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2367 VPD_PAGE
| HPSA_VPD_SUPPORTED_PAGES
,
2370 goto exit_unsupported
;
2373 for (i
= 1; i
<= pages
; i
++)
2374 if (buf
[3 + i
] == page
)
2375 goto exit_supported
;
2384 static void hpsa_get_ioaccel_status(struct ctlr_info
*h
,
2385 unsigned char *scsi3addr
, struct hpsa_scsi_dev_t
*this_device
)
2391 this_device
->offload_config
= 0;
2392 this_device
->offload_enabled
= 0;
2394 buf
= kzalloc(64, GFP_KERNEL
);
2397 if (!hpsa_vpd_page_supported(h
, scsi3addr
, HPSA_VPD_LV_IOACCEL_STATUS
))
2399 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2400 VPD_PAGE
| HPSA_VPD_LV_IOACCEL_STATUS
, buf
, 64);
2404 #define IOACCEL_STATUS_BYTE 4
2405 #define OFFLOAD_CONFIGURED_BIT 0x01
2406 #define OFFLOAD_ENABLED_BIT 0x02
2407 ioaccel_status
= buf
[IOACCEL_STATUS_BYTE
];
2408 this_device
->offload_config
=
2409 !!(ioaccel_status
& OFFLOAD_CONFIGURED_BIT
);
2410 if (this_device
->offload_config
) {
2411 this_device
->offload_enabled
=
2412 !!(ioaccel_status
& OFFLOAD_ENABLED_BIT
);
2413 if (hpsa_get_raid_map(h
, scsi3addr
, this_device
))
2414 this_device
->offload_enabled
= 0;
2421 /* Get the device id from inquiry page 0x83 */
2422 static int hpsa_get_device_id(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2423 unsigned char *device_id
, int buflen
)
2430 buf
= kzalloc(64, GFP_KERNEL
);
2433 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| 0x83, buf
, 64);
2435 memcpy(device_id
, &buf
[8], buflen
);
2440 static int hpsa_scsi_do_report_luns(struct ctlr_info
*h
, int logical
,
2441 struct ReportLUNdata
*buf
, int bufsize
,
2442 int extended_response
)
2445 struct CommandList
*c
;
2446 unsigned char scsi3addr
[8];
2447 struct ErrorInfo
*ei
;
2449 c
= cmd_special_alloc(h
);
2450 if (c
== NULL
) { /* trouble... */
2451 dev_err(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2454 /* address the controller */
2455 memset(scsi3addr
, 0, sizeof(scsi3addr
));
2456 if (fill_cmd(c
, logical
? HPSA_REPORT_LOG
: HPSA_REPORT_PHYS
, h
,
2457 buf
, bufsize
, 0, scsi3addr
, TYPE_CMD
)) {
2461 if (extended_response
)
2462 c
->Request
.CDB
[1] = extended_response
;
2463 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2465 if (ei
->CommandStatus
!= 0 &&
2466 ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2467 hpsa_scsi_interpret_error(h
, c
);
2470 if (buf
->extended_response_flag
!= extended_response
) {
2471 dev_err(&h
->pdev
->dev
,
2472 "report luns requested format %u, got %u\n",
2474 buf
->extended_response_flag
);
2479 cmd_special_free(h
, c
);
2483 static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info
*h
,
2484 struct ReportLUNdata
*buf
,
2485 int bufsize
, int extended_response
)
2487 return hpsa_scsi_do_report_luns(h
, 0, buf
, bufsize
, extended_response
);
2490 static inline int hpsa_scsi_do_report_log_luns(struct ctlr_info
*h
,
2491 struct ReportLUNdata
*buf
, int bufsize
)
2493 return hpsa_scsi_do_report_luns(h
, 1, buf
, bufsize
, 0);
2496 static inline void hpsa_set_bus_target_lun(struct hpsa_scsi_dev_t
*device
,
2497 int bus
, int target
, int lun
)
2500 device
->target
= target
;
2504 /* Use VPD inquiry to get details of volume status */
2505 static int hpsa_get_volume_status(struct ctlr_info
*h
,
2506 unsigned char scsi3addr
[])
2513 buf
= kzalloc(64, GFP_KERNEL
);
2515 return HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2517 /* Does controller have VPD for logical volume status? */
2518 if (!hpsa_vpd_page_supported(h
, scsi3addr
, HPSA_VPD_LV_STATUS
)) {
2519 dev_warn(&h
->pdev
->dev
, "Logical volume status VPD page is unsupported.\n");
2523 /* Get the size of the VPD return buffer */
2524 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| HPSA_VPD_LV_STATUS
,
2525 buf
, HPSA_VPD_HEADER_SZ
);
2527 dev_warn(&h
->pdev
->dev
, "Logical volume status VPD inquiry failed.\n");
2532 /* Now get the whole VPD buffer */
2533 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| HPSA_VPD_LV_STATUS
,
2534 buf
, size
+ HPSA_VPD_HEADER_SZ
);
2536 dev_warn(&h
->pdev
->dev
, "Logical volume status VPD inquiry failed.\n");
2539 status
= buf
[4]; /* status byte */
2545 return HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2548 /* Determine offline status of a volume.
2551 * -1 (offline for unknown reasons)
2552 * # (integer code indicating one of several NOT READY states
2553 * describing why a volume is to be kept offline)
2555 static unsigned char hpsa_volume_offline(struct ctlr_info
*h
,
2556 unsigned char scsi3addr
[])
2558 struct CommandList
*c
;
2559 unsigned char *sense
, sense_key
, asc
, ascq
;
2563 #define ASC_LUN_NOT_READY 0x04
2564 #define ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS 0x04
2565 #define ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ 0x02
2570 (void) fill_cmd(c
, TEST_UNIT_READY
, h
, NULL
, 0, 0, scsi3addr
, TYPE_CMD
);
2571 hpsa_scsi_do_simple_cmd_core(h
, c
);
2572 sense
= c
->err_info
->SenseInfo
;
2573 sense_key
= sense
[2];
2576 cmd_status
= c
->err_info
->CommandStatus
;
2577 scsi_status
= c
->err_info
->ScsiStatus
;
2579 /* Is the volume 'not ready'? */
2580 if (cmd_status
!= CMD_TARGET_STATUS
||
2581 scsi_status
!= SAM_STAT_CHECK_CONDITION
||
2582 sense_key
!= NOT_READY
||
2583 asc
!= ASC_LUN_NOT_READY
) {
2587 /* Determine the reason for not ready state */
2588 ldstat
= hpsa_get_volume_status(h
, scsi3addr
);
2590 /* Keep volume offline in certain cases: */
2592 case HPSA_LV_UNDERGOING_ERASE
:
2593 case HPSA_LV_UNDERGOING_RPI
:
2594 case HPSA_LV_PENDING_RPI
:
2595 case HPSA_LV_ENCRYPTED_NO_KEY
:
2596 case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER
:
2597 case HPSA_LV_UNDERGOING_ENCRYPTION
:
2598 case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING
:
2599 case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER
:
2601 case HPSA_VPD_LV_STATUS_UNSUPPORTED
:
2602 /* If VPD status page isn't available,
2603 * use ASC/ASCQ to determine state
2605 if ((ascq
== ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS
) ||
2606 (ascq
== ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ
))
2615 static int hpsa_update_device_info(struct ctlr_info
*h
,
2616 unsigned char scsi3addr
[], struct hpsa_scsi_dev_t
*this_device
,
2617 unsigned char *is_OBDR_device
)
2620 #define OBDR_SIG_OFFSET 43
2621 #define OBDR_TAPE_SIG "$DR-10"
2622 #define OBDR_SIG_LEN (sizeof(OBDR_TAPE_SIG) - 1)
2623 #define OBDR_TAPE_INQ_SIZE (OBDR_SIG_OFFSET + OBDR_SIG_LEN)
2625 unsigned char *inq_buff
;
2626 unsigned char *obdr_sig
;
2628 inq_buff
= kzalloc(OBDR_TAPE_INQ_SIZE
, GFP_KERNEL
);
2632 /* Do an inquiry to the device to see what it is. */
2633 if (hpsa_scsi_do_inquiry(h
, scsi3addr
, 0, inq_buff
,
2634 (unsigned char) OBDR_TAPE_INQ_SIZE
) != 0) {
2635 /* Inquiry failed (msg printed already) */
2636 dev_err(&h
->pdev
->dev
,
2637 "hpsa_update_device_info: inquiry failed\n");
2641 this_device
->devtype
= (inq_buff
[0] & 0x1f);
2642 memcpy(this_device
->scsi3addr
, scsi3addr
, 8);
2643 memcpy(this_device
->vendor
, &inq_buff
[8],
2644 sizeof(this_device
->vendor
));
2645 memcpy(this_device
->model
, &inq_buff
[16],
2646 sizeof(this_device
->model
));
2647 memset(this_device
->device_id
, 0,
2648 sizeof(this_device
->device_id
));
2649 hpsa_get_device_id(h
, scsi3addr
, this_device
->device_id
,
2650 sizeof(this_device
->device_id
));
2652 if (this_device
->devtype
== TYPE_DISK
&&
2653 is_logical_dev_addr_mode(scsi3addr
)) {
2654 hpsa_get_raid_level(h
, scsi3addr
, &this_device
->raid_level
);
2655 if (h
->fw_support
& MISC_FW_RAID_OFFLOAD_BASIC
)
2656 hpsa_get_ioaccel_status(h
, scsi3addr
, this_device
);
2657 this_device
->volume_offline
=
2658 hpsa_volume_offline(h
, scsi3addr
);
2660 this_device
->raid_level
= RAID_UNKNOWN
;
2661 this_device
->offload_config
= 0;
2662 this_device
->offload_enabled
= 0;
2663 this_device
->volume_offline
= 0;
2666 if (is_OBDR_device
) {
2667 /* See if this is a One-Button-Disaster-Recovery device
2668 * by looking for "$DR-10" at offset 43 in inquiry data.
2670 obdr_sig
= &inq_buff
[OBDR_SIG_OFFSET
];
2671 *is_OBDR_device
= (this_device
->devtype
== TYPE_ROM
&&
2672 strncmp(obdr_sig
, OBDR_TAPE_SIG
,
2673 OBDR_SIG_LEN
) == 0);
2684 static unsigned char *ext_target_model
[] = {
2694 static int is_ext_target(struct ctlr_info
*h
, struct hpsa_scsi_dev_t
*device
)
2698 for (i
= 0; ext_target_model
[i
]; i
++)
2699 if (strncmp(device
->model
, ext_target_model
[i
],
2700 strlen(ext_target_model
[i
])) == 0)
2705 /* Helper function to assign bus, target, lun mapping of devices.
2706 * Puts non-external target logical volumes on bus 0, external target logical
2707 * volumes on bus 1, physical devices on bus 2. and the hba on bus 3.
2708 * Logical drive target and lun are assigned at this time, but
2709 * physical device lun and target assignment are deferred (assigned
2710 * in hpsa_find_target_lun, called by hpsa_scsi_add_entry.)
2712 static void figure_bus_target_lun(struct ctlr_info
*h
,
2713 u8
*lunaddrbytes
, struct hpsa_scsi_dev_t
*device
)
2715 u32 lunid
= le32_to_cpu(*((__le32
*) lunaddrbytes
));
2717 if (!is_logical_dev_addr_mode(lunaddrbytes
)) {
2718 /* physical device, target and lun filled in later */
2719 if (is_hba_lunid(lunaddrbytes
))
2720 hpsa_set_bus_target_lun(device
, 3, 0, lunid
& 0x3fff);
2722 /* defer target, lun assignment for physical devices */
2723 hpsa_set_bus_target_lun(device
, 2, -1, -1);
2726 /* It's a logical device */
2727 if (is_ext_target(h
, device
)) {
2728 /* external target way, put logicals on bus 1
2729 * and match target/lun numbers box
2730 * reports, other smart array, bus 0, target 0, match lunid
2732 hpsa_set_bus_target_lun(device
,
2733 1, (lunid
>> 16) & 0x3fff, lunid
& 0x00ff);
2736 hpsa_set_bus_target_lun(device
, 0, 0, lunid
& 0x3fff);
2740 * If there is no lun 0 on a target, linux won't find any devices.
2741 * For the external targets (arrays), we have to manually detect the enclosure
2742 * which is at lun zero, as CCISS_REPORT_PHYSICAL_LUNS doesn't report
2743 * it for some reason. *tmpdevice is the target we're adding,
2744 * this_device is a pointer into the current element of currentsd[]
2745 * that we're building up in update_scsi_devices(), below.
2746 * lunzerobits is a bitmap that tracks which targets already have a
2748 * Returns 1 if an enclosure was added, 0 if not.
2750 static int add_ext_target_dev(struct ctlr_info
*h
,
2751 struct hpsa_scsi_dev_t
*tmpdevice
,
2752 struct hpsa_scsi_dev_t
*this_device
, u8
*lunaddrbytes
,
2753 unsigned long lunzerobits
[], int *n_ext_target_devs
)
2755 unsigned char scsi3addr
[8];
2757 if (test_bit(tmpdevice
->target
, lunzerobits
))
2758 return 0; /* There is already a lun 0 on this target. */
2760 if (!is_logical_dev_addr_mode(lunaddrbytes
))
2761 return 0; /* It's the logical targets that may lack lun 0. */
2763 if (!is_ext_target(h
, tmpdevice
))
2764 return 0; /* Only external target devices have this problem. */
2766 if (tmpdevice
->lun
== 0) /* if lun is 0, then we have a lun 0. */
2769 memset(scsi3addr
, 0, 8);
2770 scsi3addr
[3] = tmpdevice
->target
;
2771 if (is_hba_lunid(scsi3addr
))
2772 return 0; /* Don't add the RAID controller here. */
2774 if (is_scsi_rev_5(h
))
2775 return 0; /* p1210m doesn't need to do this. */
2777 if (*n_ext_target_devs
>= MAX_EXT_TARGETS
) {
2778 dev_warn(&h
->pdev
->dev
, "Maximum number of external "
2779 "target devices exceeded. Check your hardware "
2784 if (hpsa_update_device_info(h
, scsi3addr
, this_device
, NULL
))
2786 (*n_ext_target_devs
)++;
2787 hpsa_set_bus_target_lun(this_device
,
2788 tmpdevice
->bus
, tmpdevice
->target
, 0);
2789 set_bit(tmpdevice
->target
, lunzerobits
);
2794 * Get address of physical disk used for an ioaccel2 mode command:
2795 * 1. Extract ioaccel2 handle from the command.
2796 * 2. Find a matching ioaccel2 handle from list of physical disks.
2798 * 1 and set scsi3addr to address of matching physical
2799 * 0 if no matching physical disk was found.
2801 static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info
*h
,
2802 struct CommandList
*ioaccel2_cmd_to_abort
, unsigned char *scsi3addr
)
2804 struct ReportExtendedLUNdata
*physicals
= NULL
;
2805 int responsesize
= 24; /* size of physical extended response */
2806 int extended
= 2; /* flag forces reporting 'other dev info'. */
2807 int reportsize
= sizeof(*physicals
) + HPSA_MAX_PHYS_LUN
* responsesize
;
2808 u32 nphysicals
= 0; /* number of reported physical devs */
2809 int found
= 0; /* found match (1) or not (0) */
2810 u32 find
; /* handle we need to match */
2812 struct scsi_cmnd
*scmd
; /* scsi command within request being aborted */
2813 struct hpsa_scsi_dev_t
*d
; /* device of request being aborted */
2814 struct io_accel2_cmd
*c2a
; /* ioaccel2 command to abort */
2815 u32 it_nexus
; /* 4 byte device handle for the ioaccel2 cmd */
2816 u32 scsi_nexus
; /* 4 byte device handle for the ioaccel2 cmd */
2818 if (ioaccel2_cmd_to_abort
->cmd_type
!= CMD_IOACCEL2
)
2819 return 0; /* no match */
2821 /* point to the ioaccel2 device handle */
2822 c2a
= &h
->ioaccel2_cmd_pool
[ioaccel2_cmd_to_abort
->cmdindex
];
2824 return 0; /* no match */
2826 scmd
= (struct scsi_cmnd
*) ioaccel2_cmd_to_abort
->scsi_cmd
;
2828 return 0; /* no match */
2830 d
= scmd
->device
->hostdata
;
2832 return 0; /* no match */
2834 it_nexus
= cpu_to_le32((u32
) d
->ioaccel_handle
);
2835 scsi_nexus
= cpu_to_le32((u32
) c2a
->scsi_nexus
);
2836 find
= c2a
->scsi_nexus
;
2838 if (h
->raid_offload_debug
> 0)
2839 dev_info(&h
->pdev
->dev
,
2840 "%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",
2841 __func__
, scsi_nexus
,
2842 d
->device_id
[0], d
->device_id
[1], d
->device_id
[2],
2843 d
->device_id
[3], d
->device_id
[4], d
->device_id
[5],
2844 d
->device_id
[6], d
->device_id
[7], d
->device_id
[8],
2845 d
->device_id
[9], d
->device_id
[10], d
->device_id
[11],
2846 d
->device_id
[12], d
->device_id
[13], d
->device_id
[14],
2849 /* Get the list of physical devices */
2850 physicals
= kzalloc(reportsize
, GFP_KERNEL
);
2851 if (physicals
== NULL
)
2853 if (hpsa_scsi_do_report_phys_luns(h
, (struct ReportLUNdata
*) physicals
,
2854 reportsize
, extended
)) {
2855 dev_err(&h
->pdev
->dev
,
2856 "Can't lookup %s device handle: report physical LUNs failed.\n",
2857 "HP SSD Smart Path");
2861 nphysicals
= be32_to_cpu(*((__be32
*)physicals
->LUNListLength
)) /
2865 /* find ioaccel2 handle in list of physicals: */
2866 for (i
= 0; i
< nphysicals
; i
++) {
2867 /* handle is in bytes 28-31 of each lun */
2868 if (memcmp(&((struct ReportExtendedLUNdata
*)
2869 physicals
)->LUN
[i
][20], &find
, 4) != 0) {
2870 continue; /* didn't match */
2873 memcpy(scsi3addr
, &((struct ReportExtendedLUNdata
*)
2874 physicals
)->LUN
[i
][0], 8);
2875 if (h
->raid_offload_debug
> 0)
2876 dev_info(&h
->pdev
->dev
,
2877 "%s: Searched h=0x%08x, Found h=0x%08x, scsiaddr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
2879 ((struct ReportExtendedLUNdata
*)
2880 physicals
)->LUN
[i
][20],
2881 scsi3addr
[0], scsi3addr
[1], scsi3addr
[2],
2882 scsi3addr
[3], scsi3addr
[4], scsi3addr
[5],
2883 scsi3addr
[6], scsi3addr
[7]);
2884 break; /* found it */
2895 * Do CISS_REPORT_PHYS and CISS_REPORT_LOG. Data is returned in physdev,
2896 * logdev. The number of luns in physdev and logdev are returned in
2897 * *nphysicals and *nlogicals, respectively.
2898 * Returns 0 on success, -1 otherwise.
2900 static int hpsa_gather_lun_info(struct ctlr_info
*h
,
2902 struct ReportLUNdata
*physdev
, u32
*nphysicals
, int *physical_mode
,
2903 struct ReportLUNdata
*logdev
, u32
*nlogicals
)
2905 int physical_entry_size
= 8;
2909 /* For I/O accelerator mode we need to read physical device handles */
2910 if (h
->transMethod
& CFGTBL_Trans_io_accel1
||
2911 h
->transMethod
& CFGTBL_Trans_io_accel2
) {
2912 *physical_mode
= HPSA_REPORT_PHYS_EXTENDED
;
2913 physical_entry_size
= 24;
2915 if (hpsa_scsi_do_report_phys_luns(h
, physdev
, reportlunsize
,
2917 dev_err(&h
->pdev
->dev
, "report physical LUNs failed.\n");
2920 *nphysicals
= be32_to_cpu(*((__be32
*)physdev
->LUNListLength
)) /
2921 physical_entry_size
;
2922 if (*nphysicals
> HPSA_MAX_PHYS_LUN
) {
2923 dev_warn(&h
->pdev
->dev
, "maximum physical LUNs (%d) exceeded."
2924 " %d LUNs ignored.\n", HPSA_MAX_PHYS_LUN
,
2925 *nphysicals
- HPSA_MAX_PHYS_LUN
);
2926 *nphysicals
= HPSA_MAX_PHYS_LUN
;
2928 if (hpsa_scsi_do_report_log_luns(h
, logdev
, reportlunsize
)) {
2929 dev_err(&h
->pdev
->dev
, "report logical LUNs failed.\n");
2932 *nlogicals
= be32_to_cpu(*((__be32
*) logdev
->LUNListLength
)) / 8;
2933 /* Reject Logicals in excess of our max capability. */
2934 if (*nlogicals
> HPSA_MAX_LUN
) {
2935 dev_warn(&h
->pdev
->dev
,
2936 "maximum logical LUNs (%d) exceeded. "
2937 "%d LUNs ignored.\n", HPSA_MAX_LUN
,
2938 *nlogicals
- HPSA_MAX_LUN
);
2939 *nlogicals
= HPSA_MAX_LUN
;
2941 if (*nlogicals
+ *nphysicals
> HPSA_MAX_PHYS_LUN
) {
2942 dev_warn(&h
->pdev
->dev
,
2943 "maximum logical + physical LUNs (%d) exceeded. "
2944 "%d LUNs ignored.\n", HPSA_MAX_PHYS_LUN
,
2945 *nphysicals
+ *nlogicals
- HPSA_MAX_PHYS_LUN
);
2946 *nlogicals
= HPSA_MAX_PHYS_LUN
- *nphysicals
;
2951 u8
*figure_lunaddrbytes(struct ctlr_info
*h
, int raid_ctlr_position
, int i
,
2952 int nphysicals
, int nlogicals
,
2953 struct ReportExtendedLUNdata
*physdev_list
,
2954 struct ReportLUNdata
*logdev_list
)
2956 /* Helper function, figure out where the LUN ID info is coming from
2957 * given index i, lists of physical and logical devices, where in
2958 * the list the raid controller is supposed to appear (first or last)
2961 int logicals_start
= nphysicals
+ (raid_ctlr_position
== 0);
2962 int last_device
= nphysicals
+ nlogicals
+ (raid_ctlr_position
== 0);
2964 if (i
== raid_ctlr_position
)
2965 return RAID_CTLR_LUNID
;
2967 if (i
< logicals_start
)
2968 return &physdev_list
->LUN
[i
- (raid_ctlr_position
== 0)][0];
2970 if (i
< last_device
)
2971 return &logdev_list
->LUN
[i
- nphysicals
-
2972 (raid_ctlr_position
== 0)][0];
2977 static int hpsa_hba_mode_enabled(struct ctlr_info
*h
)
2980 int hba_mode_enabled
;
2981 struct bmic_controller_parameters
*ctlr_params
;
2982 ctlr_params
= kzalloc(sizeof(struct bmic_controller_parameters
),
2987 rc
= hpsa_bmic_ctrl_mode_sense(h
, RAID_CTLR_LUNID
, 0, ctlr_params
,
2988 sizeof(struct bmic_controller_parameters
));
2995 ((ctlr_params
->nvram_flags
& HBA_MODE_ENABLED_FLAG
) != 0);
2997 return hba_mode_enabled
;
3000 static void hpsa_update_scsi_devices(struct ctlr_info
*h
, int hostno
)
3002 /* the idea here is we could get notified
3003 * that some devices have changed, so we do a report
3004 * physical luns and report logical luns cmd, and adjust
3005 * our list of devices accordingly.
3007 * The scsi3addr's of devices won't change so long as the
3008 * adapter is not reset. That means we can rescan and
3009 * tell which devices we already know about, vs. new
3010 * devices, vs. disappearing devices.
3012 struct ReportExtendedLUNdata
*physdev_list
= NULL
;
3013 struct ReportLUNdata
*logdev_list
= NULL
;
3016 int physical_mode
= 0;
3017 u32 ndev_allocated
= 0;
3018 struct hpsa_scsi_dev_t
**currentsd
, *this_device
, *tmpdevice
;
3020 int reportlunsize
= sizeof(*physdev_list
) + HPSA_MAX_PHYS_LUN
* 24;
3021 int i
, n_ext_target_devs
, ndevs_to_allocate
;
3022 int raid_ctlr_position
;
3023 int rescan_hba_mode
;
3024 DECLARE_BITMAP(lunzerobits
, MAX_EXT_TARGETS
);
3026 currentsd
= kzalloc(sizeof(*currentsd
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
3027 physdev_list
= kzalloc(reportlunsize
, GFP_KERNEL
);
3028 logdev_list
= kzalloc(reportlunsize
, GFP_KERNEL
);
3029 tmpdevice
= kzalloc(sizeof(*tmpdevice
), GFP_KERNEL
);
3031 if (!currentsd
|| !physdev_list
|| !logdev_list
|| !tmpdevice
) {
3032 dev_err(&h
->pdev
->dev
, "out of memory\n");
3035 memset(lunzerobits
, 0, sizeof(lunzerobits
));
3037 rescan_hba_mode
= hpsa_hba_mode_enabled(h
);
3038 if (rescan_hba_mode
< 0)
3041 if (!h
->hba_mode_enabled
&& rescan_hba_mode
)
3042 dev_warn(&h
->pdev
->dev
, "HBA mode enabled\n");
3043 else if (h
->hba_mode_enabled
&& !rescan_hba_mode
)
3044 dev_warn(&h
->pdev
->dev
, "HBA mode disabled\n");
3046 h
->hba_mode_enabled
= rescan_hba_mode
;
3048 if (hpsa_gather_lun_info(h
, reportlunsize
,
3049 (struct ReportLUNdata
*) physdev_list
, &nphysicals
,
3050 &physical_mode
, logdev_list
, &nlogicals
))
3053 /* We might see up to the maximum number of logical and physical disks
3054 * plus external target devices, and a device for the local RAID
3057 ndevs_to_allocate
= nphysicals
+ nlogicals
+ MAX_EXT_TARGETS
+ 1;
3059 /* Allocate the per device structures */
3060 for (i
= 0; i
< ndevs_to_allocate
; i
++) {
3061 if (i
>= HPSA_MAX_DEVICES
) {
3062 dev_warn(&h
->pdev
->dev
, "maximum devices (%d) exceeded."
3063 " %d devices ignored.\n", HPSA_MAX_DEVICES
,
3064 ndevs_to_allocate
- HPSA_MAX_DEVICES
);
3068 currentsd
[i
] = kzalloc(sizeof(*currentsd
[i
]), GFP_KERNEL
);
3069 if (!currentsd
[i
]) {
3070 dev_warn(&h
->pdev
->dev
, "out of memory at %s:%d\n",
3071 __FILE__
, __LINE__
);
3077 if (unlikely(is_scsi_rev_5(h
)))
3078 raid_ctlr_position
= 0;
3080 raid_ctlr_position
= nphysicals
+ nlogicals
;
3082 /* adjust our table of devices */
3083 n_ext_target_devs
= 0;
3084 for (i
= 0; i
< nphysicals
+ nlogicals
+ 1; i
++) {
3085 u8
*lunaddrbytes
, is_OBDR
= 0;
3087 /* Figure out where the LUN ID info is coming from */
3088 lunaddrbytes
= figure_lunaddrbytes(h
, raid_ctlr_position
,
3089 i
, nphysicals
, nlogicals
, physdev_list
, logdev_list
);
3090 /* skip masked physical devices. */
3091 if (lunaddrbytes
[3] & 0xC0 &&
3092 i
< nphysicals
+ (raid_ctlr_position
== 0))
3095 /* Get device type, vendor, model, device id */
3096 if (hpsa_update_device_info(h
, lunaddrbytes
, tmpdevice
,
3098 continue; /* skip it if we can't talk to it. */
3099 figure_bus_target_lun(h
, lunaddrbytes
, tmpdevice
);
3100 this_device
= currentsd
[ncurrent
];
3103 * For external target devices, we have to insert a LUN 0 which
3104 * doesn't show up in CCISS_REPORT_PHYSICAL data, but there
3105 * is nonetheless an enclosure device there. We have to
3106 * present that otherwise linux won't find anything if
3107 * there is no lun 0.
3109 if (add_ext_target_dev(h
, tmpdevice
, this_device
,
3110 lunaddrbytes
, lunzerobits
,
3111 &n_ext_target_devs
)) {
3113 this_device
= currentsd
[ncurrent
];
3116 *this_device
= *tmpdevice
;
3118 switch (this_device
->devtype
) {
3120 /* We don't *really* support actual CD-ROM devices,
3121 * just "One Button Disaster Recovery" tape drive
3122 * which temporarily pretends to be a CD-ROM drive.
3123 * So we check that the device is really an OBDR tape
3124 * device by checking for "$DR-10" in bytes 43-48 of
3131 if (h
->hba_mode_enabled
) {
3132 /* never use raid mapper in HBA mode */
3133 this_device
->offload_enabled
= 0;
3136 } else if (h
->acciopath_status
) {
3137 if (i
>= nphysicals
) {
3147 if (physical_mode
== HPSA_REPORT_PHYS_EXTENDED
) {
3148 memcpy(&this_device
->ioaccel_handle
,
3150 sizeof(this_device
->ioaccel_handle
));
3155 case TYPE_MEDIUM_CHANGER
:
3159 /* Only present the Smartarray HBA as a RAID controller.
3160 * If it's a RAID controller other than the HBA itself
3161 * (an external RAID controller, MSA500 or similar)
3164 if (!is_hba_lunid(lunaddrbytes
))
3171 if (ncurrent
>= HPSA_MAX_DEVICES
)
3174 adjust_hpsa_scsi_table(h
, hostno
, currentsd
, ncurrent
);
3177 for (i
= 0; i
< ndev_allocated
; i
++)
3178 kfree(currentsd
[i
]);
3180 kfree(physdev_list
);
3184 /* hpsa_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci
3185 * dma mapping and fills in the scatter gather entries of the
3188 static int hpsa_scatter_gather(struct ctlr_info
*h
,
3189 struct CommandList
*cp
,
3190 struct scsi_cmnd
*cmd
)
3193 struct scatterlist
*sg
;
3195 int use_sg
, i
, sg_index
, chained
;
3196 struct SGDescriptor
*curr_sg
;
3198 BUG_ON(scsi_sg_count(cmd
) > h
->maxsgentries
);
3200 use_sg
= scsi_dma_map(cmd
);
3205 goto sglist_finished
;
3210 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3211 if (i
== h
->max_cmd_sg_entries
- 1 &&
3212 use_sg
> h
->max_cmd_sg_entries
) {
3214 curr_sg
= h
->cmd_sg_list
[cp
->cmdindex
];
3217 addr64
= (u64
) sg_dma_address(sg
);
3218 len
= sg_dma_len(sg
);
3219 curr_sg
->Addr
.lower
= (u32
) (addr64
& 0x0FFFFFFFFULL
);
3220 curr_sg
->Addr
.upper
= (u32
) ((addr64
>> 32) & 0x0FFFFFFFFULL
);
3222 curr_sg
->Ext
= (i
< scsi_sg_count(cmd
) - 1) ? 0 : HPSA_SG_LAST
;
3226 if (use_sg
+ chained
> h
->maxSG
)
3227 h
->maxSG
= use_sg
+ chained
;
3230 cp
->Header
.SGList
= h
->max_cmd_sg_entries
;
3231 cp
->Header
.SGTotal
= (u16
) (use_sg
+ 1);
3232 if (hpsa_map_sg_chain_block(h
, cp
)) {
3233 scsi_dma_unmap(cmd
);
3241 cp
->Header
.SGList
= (u8
) use_sg
; /* no. SGs contig in this cmd */
3242 cp
->Header
.SGTotal
= (u16
) use_sg
; /* total sgs in this cmd list */
3246 #define IO_ACCEL_INELIGIBLE (1)
3247 static int fixup_ioaccel_cdb(u8
*cdb
, int *cdb_len
)
3253 /* Perform some CDB fixups if needed using 10 byte reads/writes only */
3260 if (*cdb_len
== 6) {
3261 block
= (((u32
) cdb
[2]) << 8) | cdb
[3];
3264 BUG_ON(*cdb_len
!= 12);
3265 block
= (((u32
) cdb
[2]) << 24) |
3266 (((u32
) cdb
[3]) << 16) |
3267 (((u32
) cdb
[4]) << 8) |
3270 (((u32
) cdb
[6]) << 24) |
3271 (((u32
) cdb
[7]) << 16) |
3272 (((u32
) cdb
[8]) << 8) |
3275 if (block_cnt
> 0xffff)
3276 return IO_ACCEL_INELIGIBLE
;
3278 cdb
[0] = is_write
? WRITE_10
: READ_10
;
3280 cdb
[2] = (u8
) (block
>> 24);
3281 cdb
[3] = (u8
) (block
>> 16);
3282 cdb
[4] = (u8
) (block
>> 8);
3283 cdb
[5] = (u8
) (block
);
3285 cdb
[7] = (u8
) (block_cnt
>> 8);
3286 cdb
[8] = (u8
) (block_cnt
);
3294 static int hpsa_scsi_ioaccel1_queue_command(struct ctlr_info
*h
,
3295 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3298 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3299 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[c
->cmdindex
];
3301 unsigned int total_len
= 0;
3302 struct scatterlist
*sg
;
3305 struct SGDescriptor
*curr_sg
;
3306 u32 control
= IOACCEL1_CONTROL_SIMPLEQUEUE
;
3308 /* TODO: implement chaining support */
3309 if (scsi_sg_count(cmd
) > h
->ioaccel_maxsg
)
3310 return IO_ACCEL_INELIGIBLE
;
3312 BUG_ON(cmd
->cmd_len
> IOACCEL1_IOFLAGS_CDBLEN_MAX
);
3314 if (fixup_ioaccel_cdb(cdb
, &cdb_len
))
3315 return IO_ACCEL_INELIGIBLE
;
3317 c
->cmd_type
= CMD_IOACCEL1
;
3319 /* Adjust the DMA address to point to the accelerated command buffer */
3320 c
->busaddr
= (u32
) h
->ioaccel_cmd_pool_dhandle
+
3321 (c
->cmdindex
* sizeof(*cp
));
3322 BUG_ON(c
->busaddr
& 0x0000007F);
3324 use_sg
= scsi_dma_map(cmd
);
3330 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3331 addr64
= (u64
) sg_dma_address(sg
);
3332 len
= sg_dma_len(sg
);
3334 curr_sg
->Addr
.lower
= (u32
) (addr64
& 0x0FFFFFFFFULL
);
3335 curr_sg
->Addr
.upper
=
3336 (u32
) ((addr64
>> 32) & 0x0FFFFFFFFULL
);
3339 if (i
== (scsi_sg_count(cmd
) - 1))
3340 curr_sg
->Ext
= HPSA_SG_LAST
;
3342 curr_sg
->Ext
= 0; /* we are not chaining */
3346 switch (cmd
->sc_data_direction
) {
3348 control
|= IOACCEL1_CONTROL_DATA_OUT
;
3350 case DMA_FROM_DEVICE
:
3351 control
|= IOACCEL1_CONTROL_DATA_IN
;
3354 control
|= IOACCEL1_CONTROL_NODATAXFER
;
3357 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
3358 cmd
->sc_data_direction
);
3363 control
|= IOACCEL1_CONTROL_NODATAXFER
;
3366 c
->Header
.SGList
= use_sg
;
3367 /* Fill out the command structure to submit */
3368 cp
->dev_handle
= ioaccel_handle
& 0xFFFF;
3369 cp
->transfer_len
= total_len
;
3370 cp
->io_flags
= IOACCEL1_IOFLAGS_IO_REQ
|
3371 (cdb_len
& IOACCEL1_IOFLAGS_CDBLEN_MASK
);
3372 cp
->control
= control
;
3373 memcpy(cp
->CDB
, cdb
, cdb_len
);
3374 memcpy(cp
->CISS_LUN
, scsi3addr
, 8);
3375 /* Tag was already set at init time. */
3376 enqueue_cmd_and_start_io(h
, c
);
3381 * Queue a command directly to a device behind the controller using the
3382 * I/O accelerator path.
3384 static int hpsa_scsi_ioaccel_direct_map(struct ctlr_info
*h
,
3385 struct CommandList
*c
)
3387 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3388 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3390 return hpsa_scsi_ioaccel_queue_command(h
, c
, dev
->ioaccel_handle
,
3391 cmd
->cmnd
, cmd
->cmd_len
, dev
->scsi3addr
);
3395 * Set encryption parameters for the ioaccel2 request
3397 static void set_encrypt_ioaccel2(struct ctlr_info
*h
,
3398 struct CommandList
*c
, struct io_accel2_cmd
*cp
)
3400 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3401 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3402 struct raid_map_data
*map
= &dev
->raid_map
;
3405 BUG_ON(!(dev
->offload_config
&& dev
->offload_enabled
));
3407 /* Are we doing encryption on this device */
3408 if (!(map
->flags
& RAID_MAP_FLAG_ENCRYPT_ON
))
3410 /* Set the data encryption key index. */
3411 cp
->dekindex
= map
->dekindex
;
3413 /* Set the encryption enable flag, encoded into direction field. */
3414 cp
->direction
|= IOACCEL2_DIRECTION_ENCRYPT_MASK
;
3416 /* Set encryption tweak values based on logical block address
3417 * If block size is 512, tweak value is LBA.
3418 * For other block sizes, tweak is (LBA * block size)/ 512)
3420 switch (cmd
->cmnd
[0]) {
3421 /* Required? 6-byte cdbs eliminated by fixup_ioaccel_cdb */
3424 if (map
->volume_blk_size
== 512) {
3426 (((u32
) cmd
->cmnd
[2]) << 8) |
3428 cp
->tweak_upper
= 0;
3431 (((u64
) cmd
->cmnd
[2]) << 8) |
3433 first_block
= (first_block
* map
->volume_blk_size
)/512;
3434 cp
->tweak_lower
= (u32
)first_block
;
3435 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3440 if (map
->volume_blk_size
== 512) {
3442 (((u32
) cmd
->cmnd
[2]) << 24) |
3443 (((u32
) cmd
->cmnd
[3]) << 16) |
3444 (((u32
) cmd
->cmnd
[4]) << 8) |
3446 cp
->tweak_upper
= 0;
3449 (((u64
) cmd
->cmnd
[2]) << 24) |
3450 (((u64
) cmd
->cmnd
[3]) << 16) |
3451 (((u64
) cmd
->cmnd
[4]) << 8) |
3453 first_block
= (first_block
* map
->volume_blk_size
)/512;
3454 cp
->tweak_lower
= (u32
)first_block
;
3455 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3458 /* Required? 12-byte cdbs eliminated by fixup_ioaccel_cdb */
3461 if (map
->volume_blk_size
== 512) {
3463 (((u32
) cmd
->cmnd
[2]) << 24) |
3464 (((u32
) cmd
->cmnd
[3]) << 16) |
3465 (((u32
) cmd
->cmnd
[4]) << 8) |
3467 cp
->tweak_upper
= 0;
3470 (((u64
) cmd
->cmnd
[2]) << 24) |
3471 (((u64
) cmd
->cmnd
[3]) << 16) |
3472 (((u64
) cmd
->cmnd
[4]) << 8) |
3474 first_block
= (first_block
* map
->volume_blk_size
)/512;
3475 cp
->tweak_lower
= (u32
)first_block
;
3476 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3481 if (map
->volume_blk_size
== 512) {
3483 (((u32
) cmd
->cmnd
[6]) << 24) |
3484 (((u32
) cmd
->cmnd
[7]) << 16) |
3485 (((u32
) cmd
->cmnd
[8]) << 8) |
3488 (((u32
) cmd
->cmnd
[2]) << 24) |
3489 (((u32
) cmd
->cmnd
[3]) << 16) |
3490 (((u32
) cmd
->cmnd
[4]) << 8) |
3494 (((u64
) cmd
->cmnd
[2]) << 56) |
3495 (((u64
) cmd
->cmnd
[3]) << 48) |
3496 (((u64
) cmd
->cmnd
[4]) << 40) |
3497 (((u64
) cmd
->cmnd
[5]) << 32) |
3498 (((u64
) cmd
->cmnd
[6]) << 24) |
3499 (((u64
) cmd
->cmnd
[7]) << 16) |
3500 (((u64
) cmd
->cmnd
[8]) << 8) |
3502 first_block
= (first_block
* map
->volume_blk_size
)/512;
3503 cp
->tweak_lower
= (u32
)first_block
;
3504 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3508 dev_err(&h
->pdev
->dev
,
3509 "ERROR: %s: IOACCEL request CDB size not supported for encryption\n",
3516 static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info
*h
,
3517 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3520 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3521 struct io_accel2_cmd
*cp
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
3522 struct ioaccel2_sg_element
*curr_sg
;
3524 struct scatterlist
*sg
;
3529 if (scsi_sg_count(cmd
) > h
->ioaccel_maxsg
)
3530 return IO_ACCEL_INELIGIBLE
;
3532 if (fixup_ioaccel_cdb(cdb
, &cdb_len
))
3533 return IO_ACCEL_INELIGIBLE
;
3534 c
->cmd_type
= CMD_IOACCEL2
;
3535 /* Adjust the DMA address to point to the accelerated command buffer */
3536 c
->busaddr
= (u32
) h
->ioaccel2_cmd_pool_dhandle
+
3537 (c
->cmdindex
* sizeof(*cp
));
3538 BUG_ON(c
->busaddr
& 0x0000007F);
3540 memset(cp
, 0, sizeof(*cp
));
3541 cp
->IU_type
= IOACCEL2_IU_TYPE
;
3543 use_sg
= scsi_dma_map(cmd
);
3548 BUG_ON(use_sg
> IOACCEL2_MAXSGENTRIES
);
3550 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3551 addr64
= (u64
) sg_dma_address(sg
);
3552 len
= sg_dma_len(sg
);
3554 curr_sg
->address
= cpu_to_le64(addr64
);
3555 curr_sg
->length
= cpu_to_le32(len
);
3556 curr_sg
->reserved
[0] = 0;
3557 curr_sg
->reserved
[1] = 0;
3558 curr_sg
->reserved
[2] = 0;
3559 curr_sg
->chain_indicator
= 0;
3563 switch (cmd
->sc_data_direction
) {
3565 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3566 cp
->direction
|= IOACCEL2_DIR_DATA_OUT
;
3568 case DMA_FROM_DEVICE
:
3569 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3570 cp
->direction
|= IOACCEL2_DIR_DATA_IN
;
3573 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3574 cp
->direction
|= IOACCEL2_DIR_NO_DATA
;
3577 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
3578 cmd
->sc_data_direction
);
3583 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3584 cp
->direction
|= IOACCEL2_DIR_NO_DATA
;
3587 /* Set encryption parameters, if necessary */
3588 set_encrypt_ioaccel2(h
, c
, cp
);
3590 cp
->scsi_nexus
= ioaccel_handle
;
3591 cp
->Tag
= (c
->cmdindex
<< DIRECT_LOOKUP_SHIFT
) |
3593 memcpy(cp
->cdb
, cdb
, sizeof(cp
->cdb
));
3595 /* fill in sg elements */
3596 cp
->sg_count
= (u8
) use_sg
;
3598 cp
->data_len
= cpu_to_le32(total_len
);
3599 cp
->err_ptr
= cpu_to_le64(c
->busaddr
+
3600 offsetof(struct io_accel2_cmd
, error_data
));
3601 cp
->err_len
= cpu_to_le32((u32
) sizeof(cp
->error_data
));
3603 enqueue_cmd_and_start_io(h
, c
);
3608 * Queue a command to the correct I/O accelerator path.
3610 static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info
*h
,
3611 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3614 if (h
->transMethod
& CFGTBL_Trans_io_accel1
)
3615 return hpsa_scsi_ioaccel1_queue_command(h
, c
, ioaccel_handle
,
3616 cdb
, cdb_len
, scsi3addr
);
3618 return hpsa_scsi_ioaccel2_queue_command(h
, c
, ioaccel_handle
,
3619 cdb
, cdb_len
, scsi3addr
);
3622 static void raid_map_helper(struct raid_map_data
*map
,
3623 int offload_to_mirror
, u32
*map_index
, u32
*current_group
)
3625 if (offload_to_mirror
== 0) {
3626 /* use physical disk in the first mirrored group. */
3627 *map_index
%= map
->data_disks_per_row
;
3631 /* determine mirror group that *map_index indicates */
3632 *current_group
= *map_index
/ map
->data_disks_per_row
;
3633 if (offload_to_mirror
== *current_group
)
3635 if (*current_group
< (map
->layout_map_count
- 1)) {
3636 /* select map index from next group */
3637 *map_index
+= map
->data_disks_per_row
;
3640 /* select map index from first group */
3641 *map_index
%= map
->data_disks_per_row
;
3644 } while (offload_to_mirror
!= *current_group
);
3648 * Attempt to perform offload RAID mapping for a logical volume I/O.
3650 static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info
*h
,
3651 struct CommandList
*c
)
3653 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3654 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3655 struct raid_map_data
*map
= &dev
->raid_map
;
3656 struct raid_map_disk_data
*dd
= &map
->data
[0];
3659 u64 first_block
, last_block
;
3662 u64 first_row
, last_row
;
3663 u32 first_row_offset
, last_row_offset
;
3664 u32 first_column
, last_column
;
3665 u64 r0_first_row
, r0_last_row
;
3666 u32 r5or6_blocks_per_row
;
3667 u64 r5or6_first_row
, r5or6_last_row
;
3668 u32 r5or6_first_row_offset
, r5or6_last_row_offset
;
3669 u32 r5or6_first_column
, r5or6_last_column
;
3670 u32 total_disks_per_row
;
3672 u32 first_group
, last_group
, current_group
;
3679 #if BITS_PER_LONG == 32
3682 int offload_to_mirror
;
3684 BUG_ON(!(dev
->offload_config
&& dev
->offload_enabled
));
3686 /* check for valid opcode, get LBA and block count */
3687 switch (cmd
->cmnd
[0]) {
3692 (((u64
) cmd
->cmnd
[2]) << 8) |
3694 block_cnt
= cmd
->cmnd
[4];
3700 (((u64
) cmd
->cmnd
[2]) << 24) |
3701 (((u64
) cmd
->cmnd
[3]) << 16) |
3702 (((u64
) cmd
->cmnd
[4]) << 8) |
3705 (((u32
) cmd
->cmnd
[7]) << 8) |
3712 (((u64
) cmd
->cmnd
[2]) << 24) |
3713 (((u64
) cmd
->cmnd
[3]) << 16) |
3714 (((u64
) cmd
->cmnd
[4]) << 8) |
3717 (((u32
) cmd
->cmnd
[6]) << 24) |
3718 (((u32
) cmd
->cmnd
[7]) << 16) |
3719 (((u32
) cmd
->cmnd
[8]) << 8) |
3726 (((u64
) cmd
->cmnd
[2]) << 56) |
3727 (((u64
) cmd
->cmnd
[3]) << 48) |
3728 (((u64
) cmd
->cmnd
[4]) << 40) |
3729 (((u64
) cmd
->cmnd
[5]) << 32) |
3730 (((u64
) cmd
->cmnd
[6]) << 24) |
3731 (((u64
) cmd
->cmnd
[7]) << 16) |
3732 (((u64
) cmd
->cmnd
[8]) << 8) |
3735 (((u32
) cmd
->cmnd
[10]) << 24) |
3736 (((u32
) cmd
->cmnd
[11]) << 16) |
3737 (((u32
) cmd
->cmnd
[12]) << 8) |
3741 return IO_ACCEL_INELIGIBLE
; /* process via normal I/O path */
3743 BUG_ON(block_cnt
== 0);
3744 last_block
= first_block
+ block_cnt
- 1;
3746 /* check for write to non-RAID-0 */
3747 if (is_write
&& dev
->raid_level
!= 0)
3748 return IO_ACCEL_INELIGIBLE
;
3750 /* check for invalid block or wraparound */
3751 if (last_block
>= map
->volume_blk_cnt
|| last_block
< first_block
)
3752 return IO_ACCEL_INELIGIBLE
;
3754 /* calculate stripe information for the request */
3755 blocks_per_row
= map
->data_disks_per_row
* map
->strip_size
;
3756 #if BITS_PER_LONG == 32
3757 tmpdiv
= first_block
;
3758 (void) do_div(tmpdiv
, blocks_per_row
);
3760 tmpdiv
= last_block
;
3761 (void) do_div(tmpdiv
, blocks_per_row
);
3763 first_row_offset
= (u32
) (first_block
- (first_row
* blocks_per_row
));
3764 last_row_offset
= (u32
) (last_block
- (last_row
* blocks_per_row
));
3765 tmpdiv
= first_row_offset
;
3766 (void) do_div(tmpdiv
, map
->strip_size
);
3767 first_column
= tmpdiv
;
3768 tmpdiv
= last_row_offset
;
3769 (void) do_div(tmpdiv
, map
->strip_size
);
3770 last_column
= tmpdiv
;
3772 first_row
= first_block
/ blocks_per_row
;
3773 last_row
= last_block
/ blocks_per_row
;
3774 first_row_offset
= (u32
) (first_block
- (first_row
* blocks_per_row
));
3775 last_row_offset
= (u32
) (last_block
- (last_row
* blocks_per_row
));
3776 first_column
= first_row_offset
/ map
->strip_size
;
3777 last_column
= last_row_offset
/ map
->strip_size
;
3780 /* if this isn't a single row/column then give to the controller */
3781 if ((first_row
!= last_row
) || (first_column
!= last_column
))
3782 return IO_ACCEL_INELIGIBLE
;
3784 /* proceeding with driver mapping */
3785 total_disks_per_row
= map
->data_disks_per_row
+
3786 map
->metadata_disks_per_row
;
3787 map_row
= ((u32
)(first_row
>> map
->parity_rotation_shift
)) %
3789 map_index
= (map_row
* total_disks_per_row
) + first_column
;
3791 switch (dev
->raid_level
) {
3793 break; /* nothing special to do */
3795 /* Handles load balance across RAID 1 members.
3796 * (2-drive R1 and R10 with even # of drives.)
3797 * Appropriate for SSDs, not optimal for HDDs
3799 BUG_ON(map
->layout_map_count
!= 2);
3800 if (dev
->offload_to_mirror
)
3801 map_index
+= map
->data_disks_per_row
;
3802 dev
->offload_to_mirror
= !dev
->offload_to_mirror
;
3805 /* Handles N-way mirrors (R1-ADM)
3806 * and R10 with # of drives divisible by 3.)
3808 BUG_ON(map
->layout_map_count
!= 3);
3810 offload_to_mirror
= dev
->offload_to_mirror
;
3811 raid_map_helper(map
, offload_to_mirror
,
3812 &map_index
, ¤t_group
);
3813 /* set mirror group to use next time */
3815 (offload_to_mirror
>= map
->layout_map_count
- 1)
3816 ? 0 : offload_to_mirror
+ 1;
3817 /* FIXME: remove after debug/dev */
3818 BUG_ON(offload_to_mirror
>= map
->layout_map_count
);
3819 dev_warn(&h
->pdev
->dev
,
3820 "DEBUG: Using physical disk map index %d from mirror group %d\n",
3821 map_index
, offload_to_mirror
);
3822 dev
->offload_to_mirror
= offload_to_mirror
;
3823 /* Avoid direct use of dev->offload_to_mirror within this
3824 * function since multiple threads might simultaneously
3825 * increment it beyond the range of dev->layout_map_count -1.
3830 if (map
->layout_map_count
<= 1)
3833 /* Verify first and last block are in same RAID group */
3834 r5or6_blocks_per_row
=
3835 map
->strip_size
* map
->data_disks_per_row
;
3836 BUG_ON(r5or6_blocks_per_row
== 0);
3837 stripesize
= r5or6_blocks_per_row
* map
->layout_map_count
;
3838 #if BITS_PER_LONG == 32
3839 tmpdiv
= first_block
;
3840 first_group
= do_div(tmpdiv
, stripesize
);
3841 tmpdiv
= first_group
;
3842 (void) do_div(tmpdiv
, r5or6_blocks_per_row
);
3843 first_group
= tmpdiv
;
3844 tmpdiv
= last_block
;
3845 last_group
= do_div(tmpdiv
, stripesize
);
3846 tmpdiv
= last_group
;
3847 (void) do_div(tmpdiv
, r5or6_blocks_per_row
);
3848 last_group
= tmpdiv
;
3850 first_group
= (first_block
% stripesize
) / r5or6_blocks_per_row
;
3851 last_group
= (last_block
% stripesize
) / r5or6_blocks_per_row
;
3853 if (first_group
!= last_group
)
3854 return IO_ACCEL_INELIGIBLE
;
3856 /* Verify request is in a single row of RAID 5/6 */
3857 #if BITS_PER_LONG == 32
3858 tmpdiv
= first_block
;
3859 (void) do_div(tmpdiv
, stripesize
);
3860 first_row
= r5or6_first_row
= r0_first_row
= tmpdiv
;
3861 tmpdiv
= last_block
;
3862 (void) do_div(tmpdiv
, stripesize
);
3863 r5or6_last_row
= r0_last_row
= tmpdiv
;
3865 first_row
= r5or6_first_row
= r0_first_row
=
3866 first_block
/ stripesize
;
3867 r5or6_last_row
= r0_last_row
= last_block
/ stripesize
;
3869 if (r5or6_first_row
!= r5or6_last_row
)
3870 return IO_ACCEL_INELIGIBLE
;
3873 /* Verify request is in a single column */
3874 #if BITS_PER_LONG == 32
3875 tmpdiv
= first_block
;
3876 first_row_offset
= do_div(tmpdiv
, stripesize
);
3877 tmpdiv
= first_row_offset
;
3878 first_row_offset
= (u32
) do_div(tmpdiv
, r5or6_blocks_per_row
);
3879 r5or6_first_row_offset
= first_row_offset
;
3880 tmpdiv
= last_block
;
3881 r5or6_last_row_offset
= do_div(tmpdiv
, stripesize
);
3882 tmpdiv
= r5or6_last_row_offset
;
3883 r5or6_last_row_offset
= do_div(tmpdiv
, r5or6_blocks_per_row
);
3884 tmpdiv
= r5or6_first_row_offset
;
3885 (void) do_div(tmpdiv
, map
->strip_size
);
3886 first_column
= r5or6_first_column
= tmpdiv
;
3887 tmpdiv
= r5or6_last_row_offset
;
3888 (void) do_div(tmpdiv
, map
->strip_size
);
3889 r5or6_last_column
= tmpdiv
;
3891 first_row_offset
= r5or6_first_row_offset
=
3892 (u32
)((first_block
% stripesize
) %
3893 r5or6_blocks_per_row
);
3895 r5or6_last_row_offset
=
3896 (u32
)((last_block
% stripesize
) %
3897 r5or6_blocks_per_row
);
3899 first_column
= r5or6_first_column
=
3900 r5or6_first_row_offset
/ map
->strip_size
;
3902 r5or6_last_row_offset
/ map
->strip_size
;
3904 if (r5or6_first_column
!= r5or6_last_column
)
3905 return IO_ACCEL_INELIGIBLE
;
3907 /* Request is eligible */
3908 map_row
= ((u32
)(first_row
>> map
->parity_rotation_shift
)) %
3911 map_index
= (first_group
*
3912 (map
->row_cnt
* total_disks_per_row
)) +
3913 (map_row
* total_disks_per_row
) + first_column
;
3916 return IO_ACCEL_INELIGIBLE
;
3919 disk_handle
= dd
[map_index
].ioaccel_handle
;
3920 disk_block
= map
->disk_starting_blk
+ (first_row
* map
->strip_size
) +
3921 (first_row_offset
- (first_column
* map
->strip_size
));
3922 disk_block_cnt
= block_cnt
;
3924 /* handle differing logical/physical block sizes */
3925 if (map
->phys_blk_shift
) {
3926 disk_block
<<= map
->phys_blk_shift
;
3927 disk_block_cnt
<<= map
->phys_blk_shift
;
3929 BUG_ON(disk_block_cnt
> 0xffff);
3931 /* build the new CDB for the physical disk I/O */
3932 if (disk_block
> 0xffffffff) {
3933 cdb
[0] = is_write
? WRITE_16
: READ_16
;
3935 cdb
[2] = (u8
) (disk_block
>> 56);
3936 cdb
[3] = (u8
) (disk_block
>> 48);
3937 cdb
[4] = (u8
) (disk_block
>> 40);
3938 cdb
[5] = (u8
) (disk_block
>> 32);
3939 cdb
[6] = (u8
) (disk_block
>> 24);
3940 cdb
[7] = (u8
) (disk_block
>> 16);
3941 cdb
[8] = (u8
) (disk_block
>> 8);
3942 cdb
[9] = (u8
) (disk_block
);
3943 cdb
[10] = (u8
) (disk_block_cnt
>> 24);
3944 cdb
[11] = (u8
) (disk_block_cnt
>> 16);
3945 cdb
[12] = (u8
) (disk_block_cnt
>> 8);
3946 cdb
[13] = (u8
) (disk_block_cnt
);
3951 cdb
[0] = is_write
? WRITE_10
: READ_10
;
3953 cdb
[2] = (u8
) (disk_block
>> 24);
3954 cdb
[3] = (u8
) (disk_block
>> 16);
3955 cdb
[4] = (u8
) (disk_block
>> 8);
3956 cdb
[5] = (u8
) (disk_block
);
3958 cdb
[7] = (u8
) (disk_block_cnt
>> 8);
3959 cdb
[8] = (u8
) (disk_block_cnt
);
3963 return hpsa_scsi_ioaccel_queue_command(h
, c
, disk_handle
, cdb
, cdb_len
,
3967 static int hpsa_scsi_queue_command_lck(struct scsi_cmnd
*cmd
,
3968 void (*done
)(struct scsi_cmnd
*))
3970 struct ctlr_info
*h
;
3971 struct hpsa_scsi_dev_t
*dev
;
3972 unsigned char scsi3addr
[8];
3973 struct CommandList
*c
;
3974 unsigned long flags
;
3977 /* Get the ptr to our adapter structure out of cmd->host. */
3978 h
= sdev_to_hba(cmd
->device
);
3979 dev
= cmd
->device
->hostdata
;
3981 cmd
->result
= DID_NO_CONNECT
<< 16;
3985 memcpy(scsi3addr
, dev
->scsi3addr
, sizeof(scsi3addr
));
3987 spin_lock_irqsave(&h
->lock
, flags
);
3988 if (unlikely(h
->lockup_detected
)) {
3989 spin_unlock_irqrestore(&h
->lock
, flags
);
3990 cmd
->result
= DID_ERROR
<< 16;
3994 spin_unlock_irqrestore(&h
->lock
, flags
);
3996 if (c
== NULL
) { /* trouble... */
3997 dev_err(&h
->pdev
->dev
, "cmd_alloc returned NULL!\n");
3998 return SCSI_MLQUEUE_HOST_BUSY
;
4001 /* Fill in the command list header */
4003 cmd
->scsi_done
= done
; /* save this for use by completion code */
4005 /* save c in case we have to abort it */
4006 cmd
->host_scribble
= (unsigned char *) c
;
4008 c
->cmd_type
= CMD_SCSI
;
4011 /* Call alternate submit routine for I/O accelerated commands.
4012 * Retries always go down the normal I/O path.
4014 if (likely(cmd
->retries
== 0 &&
4015 cmd
->request
->cmd_type
== REQ_TYPE_FS
&&
4016 h
->acciopath_status
)) {
4017 if (dev
->offload_enabled
) {
4018 rc
= hpsa_scsi_ioaccel_raid_map(h
, c
);
4020 return 0; /* Sent on ioaccel path */
4021 if (rc
< 0) { /* scsi_dma_map failed. */
4023 return SCSI_MLQUEUE_HOST_BUSY
;
4025 } else if (dev
->ioaccel_handle
) {
4026 rc
= hpsa_scsi_ioaccel_direct_map(h
, c
);
4028 return 0; /* Sent on direct map path */
4029 if (rc
< 0) { /* scsi_dma_map failed. */
4031 return SCSI_MLQUEUE_HOST_BUSY
;
4036 c
->Header
.ReplyQueue
= 0; /* unused in simple mode */
4037 memcpy(&c
->Header
.LUN
.LunAddrBytes
[0], &scsi3addr
[0], 8);
4038 c
->Header
.Tag
.lower
= (c
->cmdindex
<< DIRECT_LOOKUP_SHIFT
);
4039 c
->Header
.Tag
.lower
|= DIRECT_LOOKUP_BIT
;
4041 /* Fill in the request block... */
4043 c
->Request
.Timeout
= 0;
4044 memset(c
->Request
.CDB
, 0, sizeof(c
->Request
.CDB
));
4045 BUG_ON(cmd
->cmd_len
> sizeof(c
->Request
.CDB
));
4046 c
->Request
.CDBLen
= cmd
->cmd_len
;
4047 memcpy(c
->Request
.CDB
, cmd
->cmnd
, cmd
->cmd_len
);
4048 c
->Request
.Type
.Type
= TYPE_CMD
;
4049 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
4050 switch (cmd
->sc_data_direction
) {
4052 c
->Request
.Type
.Direction
= XFER_WRITE
;
4054 case DMA_FROM_DEVICE
:
4055 c
->Request
.Type
.Direction
= XFER_READ
;
4058 c
->Request
.Type
.Direction
= XFER_NONE
;
4060 case DMA_BIDIRECTIONAL
:
4061 /* This can happen if a buggy application does a scsi passthru
4062 * and sets both inlen and outlen to non-zero. ( see
4063 * ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() )
4066 c
->Request
.Type
.Direction
= XFER_RSVD
;
4067 /* This is technically wrong, and hpsa controllers should
4068 * reject it with CMD_INVALID, which is the most correct
4069 * response, but non-fibre backends appear to let it
4070 * slide by, and give the same results as if this field
4071 * were set correctly. Either way is acceptable for
4072 * our purposes here.
4078 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
4079 cmd
->sc_data_direction
);
4084 if (hpsa_scatter_gather(h
, c
, cmd
) < 0) { /* Fill SG list */
4086 return SCSI_MLQUEUE_HOST_BUSY
;
4088 enqueue_cmd_and_start_io(h
, c
);
4089 /* the cmd'll come back via intr handler in complete_scsi_command() */
4093 static DEF_SCSI_QCMD(hpsa_scsi_queue_command
)
4095 static int do_not_scan_if_controller_locked_up(struct ctlr_info
*h
)
4097 unsigned long flags
;
4100 * Don't let rescans be initiated on a controller known
4101 * to be locked up. If the controller locks up *during*
4102 * a rescan, that thread is probably hosed, but at least
4103 * we can prevent new rescan threads from piling up on a
4104 * locked up controller.
4106 spin_lock_irqsave(&h
->lock
, flags
);
4107 if (unlikely(h
->lockup_detected
)) {
4108 spin_unlock_irqrestore(&h
->lock
, flags
);
4109 spin_lock_irqsave(&h
->scan_lock
, flags
);
4110 h
->scan_finished
= 1;
4111 wake_up_all(&h
->scan_wait_queue
);
4112 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4115 spin_unlock_irqrestore(&h
->lock
, flags
);
4119 static void hpsa_scan_start(struct Scsi_Host
*sh
)
4121 struct ctlr_info
*h
= shost_to_hba(sh
);
4122 unsigned long flags
;
4124 if (do_not_scan_if_controller_locked_up(h
))
4127 /* wait until any scan already in progress is finished. */
4129 spin_lock_irqsave(&h
->scan_lock
, flags
);
4130 if (h
->scan_finished
)
4132 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4133 wait_event(h
->scan_wait_queue
, h
->scan_finished
);
4134 /* Note: We don't need to worry about a race between this
4135 * thread and driver unload because the midlayer will
4136 * have incremented the reference count, so unload won't
4137 * happen if we're in here.
4140 h
->scan_finished
= 0; /* mark scan as in progress */
4141 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4143 if (do_not_scan_if_controller_locked_up(h
))
4146 hpsa_update_scsi_devices(h
, h
->scsi_host
->host_no
);
4148 spin_lock_irqsave(&h
->scan_lock
, flags
);
4149 h
->scan_finished
= 1; /* mark scan as finished. */
4150 wake_up_all(&h
->scan_wait_queue
);
4151 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4154 static int hpsa_scan_finished(struct Scsi_Host
*sh
,
4155 unsigned long elapsed_time
)
4157 struct ctlr_info
*h
= shost_to_hba(sh
);
4158 unsigned long flags
;
4161 spin_lock_irqsave(&h
->scan_lock
, flags
);
4162 finished
= h
->scan_finished
;
4163 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4167 static int hpsa_change_queue_depth(struct scsi_device
*sdev
,
4168 int qdepth
, int reason
)
4170 struct ctlr_info
*h
= sdev_to_hba(sdev
);
4172 if (reason
!= SCSI_QDEPTH_DEFAULT
)
4178 if (qdepth
> h
->nr_cmds
)
4179 qdepth
= h
->nr_cmds
;
4180 scsi_adjust_queue_depth(sdev
, scsi_get_tag_type(sdev
), qdepth
);
4181 return sdev
->queue_depth
;
4184 static void hpsa_unregister_scsi(struct ctlr_info
*h
)
4186 /* we are being forcibly unloaded, and may not refuse. */
4187 scsi_remove_host(h
->scsi_host
);
4188 scsi_host_put(h
->scsi_host
);
4189 h
->scsi_host
= NULL
;
4192 static int hpsa_register_scsi(struct ctlr_info
*h
)
4194 struct Scsi_Host
*sh
;
4197 sh
= scsi_host_alloc(&hpsa_driver_template
, sizeof(h
));
4204 sh
->max_channel
= 3;
4205 sh
->max_cmd_len
= MAX_COMMAND_SIZE
;
4206 sh
->max_lun
= HPSA_MAX_LUN
;
4207 sh
->max_id
= HPSA_MAX_LUN
;
4208 sh
->can_queue
= h
->nr_cmds
;
4209 if (h
->hba_mode_enabled
)
4210 sh
->cmd_per_lun
= 7;
4212 sh
->cmd_per_lun
= h
->nr_cmds
;
4213 sh
->sg_tablesize
= h
->maxsgentries
;
4215 sh
->hostdata
[0] = (unsigned long) h
;
4216 sh
->irq
= h
->intr
[h
->intr_mode
];
4217 sh
->unique_id
= sh
->irq
;
4218 error
= scsi_add_host(sh
, &h
->pdev
->dev
);
4225 dev_err(&h
->pdev
->dev
, "%s: scsi_add_host"
4226 " failed for controller %d\n", __func__
, h
->ctlr
);
4230 dev_err(&h
->pdev
->dev
, "%s: scsi_host_alloc"
4231 " failed for controller %d\n", __func__
, h
->ctlr
);
4235 static int wait_for_device_to_become_ready(struct ctlr_info
*h
,
4236 unsigned char lunaddr
[])
4240 int waittime
= 1; /* seconds */
4241 struct CommandList
*c
;
4243 c
= cmd_special_alloc(h
);
4245 dev_warn(&h
->pdev
->dev
, "out of memory in "
4246 "wait_for_device_to_become_ready.\n");
4250 /* Send test unit ready until device ready, or give up. */
4251 while (count
< HPSA_TUR_RETRY_LIMIT
) {
4253 /* Wait for a bit. do this first, because if we send
4254 * the TUR right away, the reset will just abort it.
4256 msleep(1000 * waittime
);
4258 rc
= 0; /* Device ready. */
4260 /* Increase wait time with each try, up to a point. */
4261 if (waittime
< HPSA_MAX_WAIT_INTERVAL_SECS
)
4262 waittime
= waittime
* 2;
4264 /* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
4265 (void) fill_cmd(c
, TEST_UNIT_READY
, h
,
4266 NULL
, 0, 0, lunaddr
, TYPE_CMD
);
4267 hpsa_scsi_do_simple_cmd_core(h
, c
);
4268 /* no unmap needed here because no data xfer. */
4270 if (c
->err_info
->CommandStatus
== CMD_SUCCESS
)
4273 if (c
->err_info
->CommandStatus
== CMD_TARGET_STATUS
&&
4274 c
->err_info
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
&&
4275 (c
->err_info
->SenseInfo
[2] == NO_SENSE
||
4276 c
->err_info
->SenseInfo
[2] == UNIT_ATTENTION
))
4279 dev_warn(&h
->pdev
->dev
, "waiting %d secs "
4280 "for device to become ready.\n", waittime
);
4281 rc
= 1; /* device not ready. */
4285 dev_warn(&h
->pdev
->dev
, "giving up on device.\n");
4287 dev_warn(&h
->pdev
->dev
, "device is ready.\n");
4289 cmd_special_free(h
, c
);
4293 /* Need at least one of these error handlers to keep ../scsi/hosts.c from
4294 * complaining. Doing a host- or bus-reset can't do anything good here.
4296 static int hpsa_eh_device_reset_handler(struct scsi_cmnd
*scsicmd
)
4299 struct ctlr_info
*h
;
4300 struct hpsa_scsi_dev_t
*dev
;
4302 /* find the controller to which the command to be aborted was sent */
4303 h
= sdev_to_hba(scsicmd
->device
);
4304 if (h
== NULL
) /* paranoia */
4306 dev
= scsicmd
->device
->hostdata
;
4308 dev_err(&h
->pdev
->dev
, "hpsa_eh_device_reset_handler: "
4309 "device lookup failed.\n");
4312 dev_warn(&h
->pdev
->dev
, "resetting device %d:%d:%d:%d\n",
4313 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
);
4314 /* send a reset to the SCSI LUN which the command was sent to */
4315 rc
= hpsa_send_reset(h
, dev
->scsi3addr
, HPSA_RESET_TYPE_LUN
);
4316 if (rc
== 0 && wait_for_device_to_become_ready(h
, dev
->scsi3addr
) == 0)
4319 dev_warn(&h
->pdev
->dev
, "resetting device failed.\n");
4323 static void swizzle_abort_tag(u8
*tag
)
4327 memcpy(original_tag
, tag
, 8);
4328 tag
[0] = original_tag
[3];
4329 tag
[1] = original_tag
[2];
4330 tag
[2] = original_tag
[1];
4331 tag
[3] = original_tag
[0];
4332 tag
[4] = original_tag
[7];
4333 tag
[5] = original_tag
[6];
4334 tag
[6] = original_tag
[5];
4335 tag
[7] = original_tag
[4];
4338 static void hpsa_get_tag(struct ctlr_info
*h
,
4339 struct CommandList
*c
, u32
*taglower
, u32
*tagupper
)
4341 if (c
->cmd_type
== CMD_IOACCEL1
) {
4342 struct io_accel1_cmd
*cm1
= (struct io_accel1_cmd
*)
4343 &h
->ioaccel_cmd_pool
[c
->cmdindex
];
4344 *tagupper
= cm1
->Tag
.upper
;
4345 *taglower
= cm1
->Tag
.lower
;
4348 if (c
->cmd_type
== CMD_IOACCEL2
) {
4349 struct io_accel2_cmd
*cm2
= (struct io_accel2_cmd
*)
4350 &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
4351 /* upper tag not used in ioaccel2 mode */
4352 memset(tagupper
, 0, sizeof(*tagupper
));
4353 *taglower
= cm2
->Tag
;
4356 *tagupper
= c
->Header
.Tag
.upper
;
4357 *taglower
= c
->Header
.Tag
.lower
;
4361 static int hpsa_send_abort(struct ctlr_info
*h
, unsigned char *scsi3addr
,
4362 struct CommandList
*abort
, int swizzle
)
4365 struct CommandList
*c
;
4366 struct ErrorInfo
*ei
;
4367 u32 tagupper
, taglower
;
4369 c
= cmd_special_alloc(h
);
4370 if (c
== NULL
) { /* trouble... */
4371 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
4375 /* fill_cmd can't fail here, no buffer to map */
4376 (void) fill_cmd(c
, HPSA_ABORT_MSG
, h
, abort
,
4377 0, 0, scsi3addr
, TYPE_MSG
);
4379 swizzle_abort_tag(&c
->Request
.CDB
[4]);
4380 hpsa_scsi_do_simple_cmd_core(h
, c
);
4381 hpsa_get_tag(h
, abort
, &taglower
, &tagupper
);
4382 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: do_simple_cmd_core completed.\n",
4383 __func__
, tagupper
, taglower
);
4384 /* no unmap needed here because no data xfer. */
4387 switch (ei
->CommandStatus
) {
4390 case CMD_UNABORTABLE
: /* Very common, don't make noise. */
4394 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: interpreting error.\n",
4395 __func__
, tagupper
, taglower
);
4396 hpsa_scsi_interpret_error(h
, c
);
4400 cmd_special_free(h
, c
);
4401 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: Finished.\n",
4402 __func__
, tagupper
, taglower
);
4407 * hpsa_find_cmd_in_queue
4409 * Used to determine whether a command (find) is still present
4410 * in queue_head. Optionally excludes the last element of queue_head.
4412 * This is used to avoid unnecessary aborts. Commands in h->reqQ have
4413 * not yet been submitted, and so can be aborted by the driver without
4414 * sending an abort to the hardware.
4416 * Returns pointer to command if found in queue, NULL otherwise.
4418 static struct CommandList
*hpsa_find_cmd_in_queue(struct ctlr_info
*h
,
4419 struct scsi_cmnd
*find
, struct list_head
*queue_head
)
4421 unsigned long flags
;
4422 struct CommandList
*c
= NULL
; /* ptr into cmpQ */
4426 spin_lock_irqsave(&h
->lock
, flags
);
4427 list_for_each_entry(c
, queue_head
, list
) {
4428 if (c
->scsi_cmd
== NULL
) /* e.g.: passthru ioctl */
4430 if (c
->scsi_cmd
== find
) {
4431 spin_unlock_irqrestore(&h
->lock
, flags
);
4435 spin_unlock_irqrestore(&h
->lock
, flags
);
4439 static struct CommandList
*hpsa_find_cmd_in_queue_by_tag(struct ctlr_info
*h
,
4440 u8
*tag
, struct list_head
*queue_head
)
4442 unsigned long flags
;
4443 struct CommandList
*c
;
4445 spin_lock_irqsave(&h
->lock
, flags
);
4446 list_for_each_entry(c
, queue_head
, list
) {
4447 if (memcmp(&c
->Header
.Tag
, tag
, 8) != 0)
4449 spin_unlock_irqrestore(&h
->lock
, flags
);
4452 spin_unlock_irqrestore(&h
->lock
, flags
);
4456 /* ioaccel2 path firmware cannot handle abort task requests.
4457 * Change abort requests to physical target reset, and send to the
4458 * address of the physical disk used for the ioaccel 2 command.
4459 * Return 0 on success (IO_OK)
4463 static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info
*h
,
4464 unsigned char *scsi3addr
, struct CommandList
*abort
)
4467 struct scsi_cmnd
*scmd
; /* scsi command within request being aborted */
4468 struct hpsa_scsi_dev_t
*dev
; /* device to which scsi cmd was sent */
4469 unsigned char phys_scsi3addr
[8]; /* addr of phys disk with volume */
4470 unsigned char *psa
= &phys_scsi3addr
[0];
4472 /* Get a pointer to the hpsa logical device. */
4473 scmd
= (struct scsi_cmnd
*) abort
->scsi_cmd
;
4474 dev
= (struct hpsa_scsi_dev_t
*)(scmd
->device
->hostdata
);
4476 dev_warn(&h
->pdev
->dev
,
4477 "Cannot abort: no device pointer for command.\n");
4478 return -1; /* not abortable */
4481 if (h
->raid_offload_debug
> 0)
4482 dev_info(&h
->pdev
->dev
,
4483 "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",
4484 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
,
4485 scsi3addr
[0], scsi3addr
[1], scsi3addr
[2], scsi3addr
[3],
4486 scsi3addr
[4], scsi3addr
[5], scsi3addr
[6], scsi3addr
[7]);
4488 if (!dev
->offload_enabled
) {
4489 dev_warn(&h
->pdev
->dev
,
4490 "Can't abort: device is not operating in HP SSD Smart Path mode.\n");
4491 return -1; /* not abortable */
4494 /* Incoming scsi3addr is logical addr. We need physical disk addr. */
4495 if (!hpsa_get_pdisk_of_ioaccel2(h
, abort
, psa
)) {
4496 dev_warn(&h
->pdev
->dev
, "Can't abort: Failed lookup of physical address.\n");
4497 return -1; /* not abortable */
4500 /* send the reset */
4501 if (h
->raid_offload_debug
> 0)
4502 dev_info(&h
->pdev
->dev
,
4503 "Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4504 psa
[0], psa
[1], psa
[2], psa
[3],
4505 psa
[4], psa
[5], psa
[6], psa
[7]);
4506 rc
= hpsa_send_reset(h
, psa
, HPSA_RESET_TYPE_TARGET
);
4508 dev_warn(&h
->pdev
->dev
,
4509 "Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4510 psa
[0], psa
[1], psa
[2], psa
[3],
4511 psa
[4], psa
[5], psa
[6], psa
[7]);
4512 return rc
; /* failed to reset */
4515 /* wait for device to recover */
4516 if (wait_for_device_to_become_ready(h
, psa
) != 0) {
4517 dev_warn(&h
->pdev
->dev
,
4518 "Reset as abort: Failed: Device never recovered from reset: 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4519 psa
[0], psa
[1], psa
[2], psa
[3],
4520 psa
[4], psa
[5], psa
[6], psa
[7]);
4521 return -1; /* failed to recover */
4524 /* device recovered */
4525 dev_info(&h
->pdev
->dev
,
4526 "Reset as abort: Device recovered from reset: scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4527 psa
[0], psa
[1], psa
[2], psa
[3],
4528 psa
[4], psa
[5], psa
[6], psa
[7]);
4530 return rc
; /* success */
4533 /* Some Smart Arrays need the abort tag swizzled, and some don't. It's hard to
4534 * tell which kind we're dealing with, so we send the abort both ways. There
4535 * shouldn't be any collisions between swizzled and unswizzled tags due to the
4536 * way we construct our tags but we check anyway in case the assumptions which
4537 * make this true someday become false.
4539 static int hpsa_send_abort_both_ways(struct ctlr_info
*h
,
4540 unsigned char *scsi3addr
, struct CommandList
*abort
)
4543 struct CommandList
*c
;
4544 int rc
= 0, rc2
= 0;
4546 /* ioccelerator mode 2 commands should be aborted via the
4547 * accelerated path, since RAID path is unaware of these commands,
4548 * but underlying firmware can't handle abort TMF.
4549 * Change abort to physical device reset.
4551 if (abort
->cmd_type
== CMD_IOACCEL2
)
4552 return hpsa_send_reset_as_abort_ioaccel2(h
, scsi3addr
, abort
);
4554 /* we do not expect to find the swizzled tag in our queue, but
4555 * check anyway just to be sure the assumptions which make this
4556 * the case haven't become wrong.
4558 memcpy(swizzled_tag
, &abort
->Request
.CDB
[4], 8);
4559 swizzle_abort_tag(swizzled_tag
);
4560 c
= hpsa_find_cmd_in_queue_by_tag(h
, swizzled_tag
, &h
->cmpQ
);
4562 dev_warn(&h
->pdev
->dev
, "Unexpectedly found byte-swapped tag in completion queue.\n");
4563 return hpsa_send_abort(h
, scsi3addr
, abort
, 0);
4565 rc
= hpsa_send_abort(h
, scsi3addr
, abort
, 0);
4567 /* if the command is still in our queue, we can't conclude that it was
4568 * aborted (it might have just completed normally) but in any case
4569 * we don't need to try to abort it another way.
4571 c
= hpsa_find_cmd_in_queue(h
, abort
->scsi_cmd
, &h
->cmpQ
);
4573 rc2
= hpsa_send_abort(h
, scsi3addr
, abort
, 1);
4577 /* Send an abort for the specified command.
4578 * If the device and controller support it,
4579 * send a task abort request.
4581 static int hpsa_eh_abort_handler(struct scsi_cmnd
*sc
)
4585 struct ctlr_info
*h
;
4586 struct hpsa_scsi_dev_t
*dev
;
4587 struct CommandList
*abort
; /* pointer to command to be aborted */
4588 struct CommandList
*found
;
4589 struct scsi_cmnd
*as
; /* ptr to scsi cmd inside aborted command. */
4590 char msg
[256]; /* For debug messaging. */
4592 u32 tagupper
, taglower
;
4594 /* Find the controller of the command to be aborted */
4595 h
= sdev_to_hba(sc
->device
);
4597 "ABORT REQUEST FAILED, Controller lookup failed.\n"))
4600 /* Check that controller supports some kind of task abort */
4601 if (!(HPSATMF_PHYS_TASK_ABORT
& h
->TMFSupportFlags
) &&
4602 !(HPSATMF_LOG_TASK_ABORT
& h
->TMFSupportFlags
))
4605 memset(msg
, 0, sizeof(msg
));
4606 ml
+= sprintf(msg
+ml
, "ABORT REQUEST on C%d:B%d:T%d:L%d ",
4607 h
->scsi_host
->host_no
, sc
->device
->channel
,
4608 sc
->device
->id
, sc
->device
->lun
);
4610 /* Find the device of the command to be aborted */
4611 dev
= sc
->device
->hostdata
;
4613 dev_err(&h
->pdev
->dev
, "%s FAILED, Device lookup failed.\n",
4618 /* Get SCSI command to be aborted */
4619 abort
= (struct CommandList
*) sc
->host_scribble
;
4620 if (abort
== NULL
) {
4621 dev_err(&h
->pdev
->dev
, "%s FAILED, Command to abort is NULL.\n",
4625 hpsa_get_tag(h
, abort
, &taglower
, &tagupper
);
4626 ml
+= sprintf(msg
+ml
, "Tag:0x%08x:%08x ", tagupper
, taglower
);
4627 as
= (struct scsi_cmnd
*) abort
->scsi_cmd
;
4629 ml
+= sprintf(msg
+ml
, "Command:0x%x SN:0x%lx ",
4630 as
->cmnd
[0], as
->serial_number
);
4631 dev_dbg(&h
->pdev
->dev
, "%s\n", msg
);
4632 dev_warn(&h
->pdev
->dev
, "Abort request on C%d:B%d:T%d:L%d\n",
4633 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
);
4635 /* Search reqQ to See if command is queued but not submitted,
4636 * if so, complete the command with aborted status and remove
4639 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->reqQ
);
4641 found
->err_info
->CommandStatus
= CMD_ABORTED
;
4643 dev_info(&h
->pdev
->dev
, "%s Request SUCCEEDED (driver queue).\n",
4648 /* not in reqQ, if also not in cmpQ, must have already completed */
4649 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->cmpQ
);
4651 dev_dbg(&h
->pdev
->dev
, "%s Request SUCCEEDED (not known to driver).\n",
4657 * Command is in flight, or possibly already completed
4658 * by the firmware (but not to the scsi mid layer) but we can't
4659 * distinguish which. Send the abort down.
4661 rc
= hpsa_send_abort_both_ways(h
, dev
->scsi3addr
, abort
);
4663 dev_dbg(&h
->pdev
->dev
, "%s Request FAILED.\n", msg
);
4664 dev_warn(&h
->pdev
->dev
, "FAILED abort on device C%d:B%d:T%d:L%d\n",
4665 h
->scsi_host
->host_no
,
4666 dev
->bus
, dev
->target
, dev
->lun
);
4669 dev_info(&h
->pdev
->dev
, "%s REQUEST SUCCEEDED.\n", msg
);
4671 /* If the abort(s) above completed and actually aborted the
4672 * command, then the command to be aborted should already be
4673 * completed. If not, wait around a bit more to see if they
4674 * manage to complete normally.
4676 #define ABORT_COMPLETE_WAIT_SECS 30
4677 for (i
= 0; i
< ABORT_COMPLETE_WAIT_SECS
* 10; i
++) {
4678 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->cmpQ
);
4683 dev_warn(&h
->pdev
->dev
, "%s FAILED. Aborted command has not completed after %d seconds.\n",
4684 msg
, ABORT_COMPLETE_WAIT_SECS
);
4690 * For operations that cannot sleep, a command block is allocated at init,
4691 * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track
4692 * which ones are free or in use. Lock must be held when calling this.
4693 * cmd_free() is the complement.
4695 static struct CommandList
*cmd_alloc(struct ctlr_info
*h
)
4697 struct CommandList
*c
;
4699 union u64bit temp64
;
4700 dma_addr_t cmd_dma_handle
, err_dma_handle
;
4701 unsigned long flags
;
4703 spin_lock_irqsave(&h
->lock
, flags
);
4705 i
= find_first_zero_bit(h
->cmd_pool_bits
, h
->nr_cmds
);
4706 if (i
== h
->nr_cmds
) {
4707 spin_unlock_irqrestore(&h
->lock
, flags
);
4710 } while (test_and_set_bit
4711 (i
& (BITS_PER_LONG
- 1),
4712 h
->cmd_pool_bits
+ (i
/ BITS_PER_LONG
)) != 0);
4713 spin_unlock_irqrestore(&h
->lock
, flags
);
4715 c
= h
->cmd_pool
+ i
;
4716 memset(c
, 0, sizeof(*c
));
4717 cmd_dma_handle
= h
->cmd_pool_dhandle
4719 c
->err_info
= h
->errinfo_pool
+ i
;
4720 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
4721 err_dma_handle
= h
->errinfo_pool_dhandle
4722 + i
* sizeof(*c
->err_info
);
4726 INIT_LIST_HEAD(&c
->list
);
4727 c
->busaddr
= (u32
) cmd_dma_handle
;
4728 temp64
.val
= (u64
) err_dma_handle
;
4729 c
->ErrDesc
.Addr
.lower
= temp64
.val32
.lower
;
4730 c
->ErrDesc
.Addr
.upper
= temp64
.val32
.upper
;
4731 c
->ErrDesc
.Len
= sizeof(*c
->err_info
);
4737 /* For operations that can wait for kmalloc to possibly sleep,
4738 * this routine can be called. Lock need not be held to call
4739 * cmd_special_alloc. cmd_special_free() is the complement.
4741 static struct CommandList
*cmd_special_alloc(struct ctlr_info
*h
)
4743 struct CommandList
*c
;
4744 union u64bit temp64
;
4745 dma_addr_t cmd_dma_handle
, err_dma_handle
;
4747 c
= pci_alloc_consistent(h
->pdev
, sizeof(*c
), &cmd_dma_handle
);
4750 memset(c
, 0, sizeof(*c
));
4752 c
->cmd_type
= CMD_SCSI
;
4755 c
->err_info
= pci_alloc_consistent(h
->pdev
, sizeof(*c
->err_info
),
4758 if (c
->err_info
== NULL
) {
4759 pci_free_consistent(h
->pdev
,
4760 sizeof(*c
), c
, cmd_dma_handle
);
4763 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
4765 INIT_LIST_HEAD(&c
->list
);
4766 c
->busaddr
= (u32
) cmd_dma_handle
;
4767 temp64
.val
= (u64
) err_dma_handle
;
4768 c
->ErrDesc
.Addr
.lower
= temp64
.val32
.lower
;
4769 c
->ErrDesc
.Addr
.upper
= temp64
.val32
.upper
;
4770 c
->ErrDesc
.Len
= sizeof(*c
->err_info
);
4776 static void cmd_free(struct ctlr_info
*h
, struct CommandList
*c
)
4779 unsigned long flags
;
4781 i
= c
- h
->cmd_pool
;
4782 spin_lock_irqsave(&h
->lock
, flags
);
4783 clear_bit(i
& (BITS_PER_LONG
- 1),
4784 h
->cmd_pool_bits
+ (i
/ BITS_PER_LONG
));
4785 spin_unlock_irqrestore(&h
->lock
, flags
);
4788 static void cmd_special_free(struct ctlr_info
*h
, struct CommandList
*c
)
4790 union u64bit temp64
;
4792 temp64
.val32
.lower
= c
->ErrDesc
.Addr
.lower
;
4793 temp64
.val32
.upper
= c
->ErrDesc
.Addr
.upper
;
4794 pci_free_consistent(h
->pdev
, sizeof(*c
->err_info
),
4795 c
->err_info
, (dma_addr_t
) temp64
.val
);
4796 pci_free_consistent(h
->pdev
, sizeof(*c
),
4797 c
, (dma_addr_t
) (c
->busaddr
& DIRECT_LOOKUP_MASK
));
4800 #ifdef CONFIG_COMPAT
4802 static int hpsa_ioctl32_passthru(struct scsi_device
*dev
, int cmd
, void *arg
)
4804 IOCTL32_Command_struct __user
*arg32
=
4805 (IOCTL32_Command_struct __user
*) arg
;
4806 IOCTL_Command_struct arg64
;
4807 IOCTL_Command_struct __user
*p
= compat_alloc_user_space(sizeof(arg64
));
4811 memset(&arg64
, 0, sizeof(arg64
));
4813 err
|= copy_from_user(&arg64
.LUN_info
, &arg32
->LUN_info
,
4814 sizeof(arg64
.LUN_info
));
4815 err
|= copy_from_user(&arg64
.Request
, &arg32
->Request
,
4816 sizeof(arg64
.Request
));
4817 err
|= copy_from_user(&arg64
.error_info
, &arg32
->error_info
,
4818 sizeof(arg64
.error_info
));
4819 err
|= get_user(arg64
.buf_size
, &arg32
->buf_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_PASSTHRU
, (void *)p
);
4830 err
|= copy_in_user(&arg32
->error_info
, &p
->error_info
,
4831 sizeof(arg32
->error_info
));
4837 static int hpsa_ioctl32_big_passthru(struct scsi_device
*dev
,
4840 BIG_IOCTL32_Command_struct __user
*arg32
=
4841 (BIG_IOCTL32_Command_struct __user
*) arg
;
4842 BIG_IOCTL_Command_struct arg64
;
4843 BIG_IOCTL_Command_struct __user
*p
=
4844 compat_alloc_user_space(sizeof(arg64
));
4848 memset(&arg64
, 0, sizeof(arg64
));
4850 err
|= copy_from_user(&arg64
.LUN_info
, &arg32
->LUN_info
,
4851 sizeof(arg64
.LUN_info
));
4852 err
|= copy_from_user(&arg64
.Request
, &arg32
->Request
,
4853 sizeof(arg64
.Request
));
4854 err
|= copy_from_user(&arg64
.error_info
, &arg32
->error_info
,
4855 sizeof(arg64
.error_info
));
4856 err
|= get_user(arg64
.buf_size
, &arg32
->buf_size
);
4857 err
|= get_user(arg64
.malloc_size
, &arg32
->malloc_size
);
4858 err
|= get_user(cp
, &arg32
->buf
);
4859 arg64
.buf
= compat_ptr(cp
);
4860 err
|= copy_to_user(p
, &arg64
, sizeof(arg64
));
4865 err
= hpsa_ioctl(dev
, CCISS_BIG_PASSTHRU
, (void *)p
);
4868 err
|= copy_in_user(&arg32
->error_info
, &p
->error_info
,
4869 sizeof(arg32
->error_info
));
4875 static int hpsa_compat_ioctl(struct scsi_device
*dev
, int cmd
, void *arg
)
4878 case CCISS_GETPCIINFO
:
4879 case CCISS_GETINTINFO
:
4880 case CCISS_SETINTINFO
:
4881 case CCISS_GETNODENAME
:
4882 case CCISS_SETNODENAME
:
4883 case CCISS_GETHEARTBEAT
:
4884 case CCISS_GETBUSTYPES
:
4885 case CCISS_GETFIRMVER
:
4886 case CCISS_GETDRIVVER
:
4887 case CCISS_REVALIDVOLS
:
4888 case CCISS_DEREGDISK
:
4889 case CCISS_REGNEWDISK
:
4891 case CCISS_RESCANDISK
:
4892 case CCISS_GETLUNINFO
:
4893 return hpsa_ioctl(dev
, cmd
, arg
);
4895 case CCISS_PASSTHRU32
:
4896 return hpsa_ioctl32_passthru(dev
, cmd
, arg
);
4897 case CCISS_BIG_PASSTHRU32
:
4898 return hpsa_ioctl32_big_passthru(dev
, cmd
, arg
);
4901 return -ENOIOCTLCMD
;
4906 static int hpsa_getpciinfo_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4908 struct hpsa_pci_info pciinfo
;
4912 pciinfo
.domain
= pci_domain_nr(h
->pdev
->bus
);
4913 pciinfo
.bus
= h
->pdev
->bus
->number
;
4914 pciinfo
.dev_fn
= h
->pdev
->devfn
;
4915 pciinfo
.board_id
= h
->board_id
;
4916 if (copy_to_user(argp
, &pciinfo
, sizeof(pciinfo
)))
4921 static int hpsa_getdrivver_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4923 DriverVer_type DriverVer
;
4924 unsigned char vmaj
, vmin
, vsubmin
;
4927 rc
= sscanf(HPSA_DRIVER_VERSION
, "%hhu.%hhu.%hhu",
4928 &vmaj
, &vmin
, &vsubmin
);
4930 dev_info(&h
->pdev
->dev
, "driver version string '%s' "
4931 "unrecognized.", HPSA_DRIVER_VERSION
);
4936 DriverVer
= (vmaj
<< 16) | (vmin
<< 8) | vsubmin
;
4939 if (copy_to_user(argp
, &DriverVer
, sizeof(DriverVer_type
)))
4944 static int hpsa_passthru_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4946 IOCTL_Command_struct iocommand
;
4947 struct CommandList
*c
;
4949 union u64bit temp64
;
4954 if (!capable(CAP_SYS_RAWIO
))
4956 if (copy_from_user(&iocommand
, argp
, sizeof(iocommand
)))
4958 if ((iocommand
.buf_size
< 1) &&
4959 (iocommand
.Request
.Type
.Direction
!= XFER_NONE
)) {
4962 if (iocommand
.buf_size
> 0) {
4963 buff
= kmalloc(iocommand
.buf_size
, GFP_KERNEL
);
4966 if (iocommand
.Request
.Type
.Direction
== XFER_WRITE
) {
4967 /* Copy the data into the buffer we created */
4968 if (copy_from_user(buff
, iocommand
.buf
,
4969 iocommand
.buf_size
)) {
4974 memset(buff
, 0, iocommand
.buf_size
);
4977 c
= cmd_special_alloc(h
);
4982 /* Fill in the command type */
4983 c
->cmd_type
= CMD_IOCTL_PEND
;
4984 /* Fill in Command Header */
4985 c
->Header
.ReplyQueue
= 0; /* unused in simple mode */
4986 if (iocommand
.buf_size
> 0) { /* buffer to fill */
4987 c
->Header
.SGList
= 1;
4988 c
->Header
.SGTotal
= 1;
4989 } else { /* no buffers to fill */
4990 c
->Header
.SGList
= 0;
4991 c
->Header
.SGTotal
= 0;
4993 memcpy(&c
->Header
.LUN
, &iocommand
.LUN_info
, sizeof(c
->Header
.LUN
));
4994 /* use the kernel address the cmd block for tag */
4995 c
->Header
.Tag
.lower
= c
->busaddr
;
4997 /* Fill in Request block */
4998 memcpy(&c
->Request
, &iocommand
.Request
,
4999 sizeof(c
->Request
));
5001 /* Fill in the scatter gather information */
5002 if (iocommand
.buf_size
> 0) {
5003 temp64
.val
= pci_map_single(h
->pdev
, buff
,
5004 iocommand
.buf_size
, PCI_DMA_BIDIRECTIONAL
);
5005 if (dma_mapping_error(&h
->pdev
->dev
, temp64
.val
)) {
5006 c
->SG
[0].Addr
.lower
= 0;
5007 c
->SG
[0].Addr
.upper
= 0;
5012 c
->SG
[0].Addr
.lower
= temp64
.val32
.lower
;
5013 c
->SG
[0].Addr
.upper
= temp64
.val32
.upper
;
5014 c
->SG
[0].Len
= iocommand
.buf_size
;
5015 c
->SG
[0].Ext
= HPSA_SG_LAST
; /* we are not chaining*/
5017 hpsa_scsi_do_simple_cmd_core_if_no_lockup(h
, c
);
5018 if (iocommand
.buf_size
> 0)
5019 hpsa_pci_unmap(h
->pdev
, c
, 1, PCI_DMA_BIDIRECTIONAL
);
5020 check_ioctl_unit_attention(h
, c
);
5022 /* Copy the error information out */
5023 memcpy(&iocommand
.error_info
, c
->err_info
,
5024 sizeof(iocommand
.error_info
));
5025 if (copy_to_user(argp
, &iocommand
, sizeof(iocommand
))) {
5029 if (iocommand
.Request
.Type
.Direction
== XFER_READ
&&
5030 iocommand
.buf_size
> 0) {
5031 /* Copy the data out of the buffer we created */
5032 if (copy_to_user(iocommand
.buf
, buff
, iocommand
.buf_size
)) {
5038 cmd_special_free(h
, c
);
5044 static int hpsa_big_passthru_ioctl(struct ctlr_info
*h
, void __user
*argp
)
5046 BIG_IOCTL_Command_struct
*ioc
;
5047 struct CommandList
*c
;
5048 unsigned char **buff
= NULL
;
5049 int *buff_size
= NULL
;
5050 union u64bit temp64
;
5056 BYTE __user
*data_ptr
;
5060 if (!capable(CAP_SYS_RAWIO
))
5062 ioc
= (BIG_IOCTL_Command_struct
*)
5063 kmalloc(sizeof(*ioc
), GFP_KERNEL
);
5068 if (copy_from_user(ioc
, argp
, sizeof(*ioc
))) {
5072 if ((ioc
->buf_size
< 1) &&
5073 (ioc
->Request
.Type
.Direction
!= XFER_NONE
)) {
5077 /* Check kmalloc limits using all SGs */
5078 if (ioc
->malloc_size
> MAX_KMALLOC_SIZE
) {
5082 if (ioc
->buf_size
> ioc
->malloc_size
* SG_ENTRIES_IN_CMD
) {
5086 buff
= kzalloc(SG_ENTRIES_IN_CMD
* sizeof(char *), GFP_KERNEL
);
5091 buff_size
= kmalloc(SG_ENTRIES_IN_CMD
* sizeof(int), GFP_KERNEL
);
5096 left
= ioc
->buf_size
;
5097 data_ptr
= ioc
->buf
;
5099 sz
= (left
> ioc
->malloc_size
) ? ioc
->malloc_size
: left
;
5100 buff_size
[sg_used
] = sz
;
5101 buff
[sg_used
] = kmalloc(sz
, GFP_KERNEL
);
5102 if (buff
[sg_used
] == NULL
) {
5106 if (ioc
->Request
.Type
.Direction
== XFER_WRITE
) {
5107 if (copy_from_user(buff
[sg_used
], data_ptr
, sz
)) {
5112 memset(buff
[sg_used
], 0, sz
);
5117 c
= cmd_special_alloc(h
);
5122 c
->cmd_type
= CMD_IOCTL_PEND
;
5123 c
->Header
.ReplyQueue
= 0;
5124 c
->Header
.SGList
= c
->Header
.SGTotal
= sg_used
;
5125 memcpy(&c
->Header
.LUN
, &ioc
->LUN_info
, sizeof(c
->Header
.LUN
));
5126 c
->Header
.Tag
.lower
= c
->busaddr
;
5127 memcpy(&c
->Request
, &ioc
->Request
, sizeof(c
->Request
));
5128 if (ioc
->buf_size
> 0) {
5130 for (i
= 0; i
< sg_used
; i
++) {
5131 temp64
.val
= pci_map_single(h
->pdev
, buff
[i
],
5132 buff_size
[i
], PCI_DMA_BIDIRECTIONAL
);
5133 if (dma_mapping_error(&h
->pdev
->dev
, temp64
.val
)) {
5134 c
->SG
[i
].Addr
.lower
= 0;
5135 c
->SG
[i
].Addr
.upper
= 0;
5137 hpsa_pci_unmap(h
->pdev
, c
, i
,
5138 PCI_DMA_BIDIRECTIONAL
);
5142 c
->SG
[i
].Addr
.lower
= temp64
.val32
.lower
;
5143 c
->SG
[i
].Addr
.upper
= temp64
.val32
.upper
;
5144 c
->SG
[i
].Len
= buff_size
[i
];
5145 c
->SG
[i
].Ext
= i
< sg_used
- 1 ? 0 : HPSA_SG_LAST
;
5148 hpsa_scsi_do_simple_cmd_core_if_no_lockup(h
, c
);
5150 hpsa_pci_unmap(h
->pdev
, c
, sg_used
, PCI_DMA_BIDIRECTIONAL
);
5151 check_ioctl_unit_attention(h
, c
);
5152 /* Copy the error information out */
5153 memcpy(&ioc
->error_info
, c
->err_info
, sizeof(ioc
->error_info
));
5154 if (copy_to_user(argp
, ioc
, sizeof(*ioc
))) {
5158 if (ioc
->Request
.Type
.Direction
== XFER_READ
&& ioc
->buf_size
> 0) {
5159 /* Copy the data out of the buffer we created */
5160 BYTE __user
*ptr
= ioc
->buf
;
5161 for (i
= 0; i
< sg_used
; i
++) {
5162 if (copy_to_user(ptr
, buff
[i
], buff_size
[i
])) {
5166 ptr
+= buff_size
[i
];
5171 cmd_special_free(h
, c
);
5174 for (i
= 0; i
< sg_used
; i
++)
5183 static void check_ioctl_unit_attention(struct ctlr_info
*h
,
5184 struct CommandList
*c
)
5186 if (c
->err_info
->CommandStatus
== CMD_TARGET_STATUS
&&
5187 c
->err_info
->ScsiStatus
!= SAM_STAT_CHECK_CONDITION
)
5188 (void) check_for_unit_attention(h
, c
);
5191 static int increment_passthru_count(struct ctlr_info
*h
)
5193 unsigned long flags
;
5195 spin_lock_irqsave(&h
->passthru_count_lock
, flags
);
5196 if (h
->passthru_count
>= HPSA_MAX_CONCURRENT_PASSTHRUS
) {
5197 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5200 h
->passthru_count
++;
5201 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5205 static void decrement_passthru_count(struct ctlr_info
*h
)
5207 unsigned long flags
;
5209 spin_lock_irqsave(&h
->passthru_count_lock
, flags
);
5210 if (h
->passthru_count
<= 0) {
5211 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5212 /* not expecting to get here. */
5213 dev_warn(&h
->pdev
->dev
, "Bug detected, passthru_count seems to be incorrect.\n");
5216 h
->passthru_count
--;
5217 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5223 static int hpsa_ioctl(struct scsi_device
*dev
, int cmd
, void *arg
)
5225 struct ctlr_info
*h
;
5226 void __user
*argp
= (void __user
*)arg
;
5229 h
= sdev_to_hba(dev
);
5232 case CCISS_DEREGDISK
:
5233 case CCISS_REGNEWDISK
:
5235 hpsa_scan_start(h
->scsi_host
);
5237 case CCISS_GETPCIINFO
:
5238 return hpsa_getpciinfo_ioctl(h
, argp
);
5239 case CCISS_GETDRIVVER
:
5240 return hpsa_getdrivver_ioctl(h
, argp
);
5241 case CCISS_PASSTHRU
:
5242 if (increment_passthru_count(h
))
5244 rc
= hpsa_passthru_ioctl(h
, argp
);
5245 decrement_passthru_count(h
);
5247 case CCISS_BIG_PASSTHRU
:
5248 if (increment_passthru_count(h
))
5250 rc
= hpsa_big_passthru_ioctl(h
, argp
);
5251 decrement_passthru_count(h
);
5258 static int hpsa_send_host_reset(struct ctlr_info
*h
, unsigned char *scsi3addr
,
5261 struct CommandList
*c
;
5266 /* fill_cmd can't fail here, no data buffer to map */
5267 (void) fill_cmd(c
, HPSA_DEVICE_RESET_MSG
, h
, NULL
, 0, 0,
5268 RAID_CTLR_LUNID
, TYPE_MSG
);
5269 c
->Request
.CDB
[1] = reset_type
; /* fill_cmd defaults to target reset */
5271 enqueue_cmd_and_start_io(h
, c
);
5272 /* Don't wait for completion, the reset won't complete. Don't free
5273 * the command either. This is the last command we will send before
5274 * re-initializing everything, so it doesn't matter and won't leak.
5279 static int fill_cmd(struct CommandList
*c
, u8 cmd
, struct ctlr_info
*h
,
5280 void *buff
, size_t size
, u16 page_code
, unsigned char *scsi3addr
,
5283 int pci_dir
= XFER_NONE
;
5284 struct CommandList
*a
; /* for commands to be aborted */
5286 c
->cmd_type
= CMD_IOCTL_PEND
;
5287 c
->Header
.ReplyQueue
= 0;
5288 if (buff
!= NULL
&& size
> 0) {
5289 c
->Header
.SGList
= 1;
5290 c
->Header
.SGTotal
= 1;
5292 c
->Header
.SGList
= 0;
5293 c
->Header
.SGTotal
= 0;
5295 c
->Header
.Tag
.lower
= c
->busaddr
;
5296 memcpy(c
->Header
.LUN
.LunAddrBytes
, scsi3addr
, 8);
5298 c
->Request
.Type
.Type
= cmd_type
;
5299 if (cmd_type
== TYPE_CMD
) {
5302 /* are we trying to read a vital product page */
5303 if (page_code
& VPD_PAGE
) {
5304 c
->Request
.CDB
[1] = 0x01;
5305 c
->Request
.CDB
[2] = (page_code
& 0xff);
5307 c
->Request
.CDBLen
= 6;
5308 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5309 c
->Request
.Type
.Direction
= XFER_READ
;
5310 c
->Request
.Timeout
= 0;
5311 c
->Request
.CDB
[0] = HPSA_INQUIRY
;
5312 c
->Request
.CDB
[4] = size
& 0xFF;
5314 case HPSA_REPORT_LOG
:
5315 case HPSA_REPORT_PHYS
:
5316 /* Talking to controller so It's a physical command
5317 mode = 00 target = 0. Nothing to write.
5319 c
->Request
.CDBLen
= 12;
5320 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5321 c
->Request
.Type
.Direction
= XFER_READ
;
5322 c
->Request
.Timeout
= 0;
5323 c
->Request
.CDB
[0] = cmd
;
5324 c
->Request
.CDB
[6] = (size
>> 24) & 0xFF; /* MSB */
5325 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5326 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5327 c
->Request
.CDB
[9] = size
& 0xFF;
5329 case HPSA_CACHE_FLUSH
:
5330 c
->Request
.CDBLen
= 12;
5331 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5332 c
->Request
.Type
.Direction
= XFER_WRITE
;
5333 c
->Request
.Timeout
= 0;
5334 c
->Request
.CDB
[0] = BMIC_WRITE
;
5335 c
->Request
.CDB
[6] = BMIC_CACHE_FLUSH
;
5336 c
->Request
.CDB
[7] = (size
>> 8) & 0xFF;
5337 c
->Request
.CDB
[8] = size
& 0xFF;
5339 case TEST_UNIT_READY
:
5340 c
->Request
.CDBLen
= 6;
5341 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5342 c
->Request
.Type
.Direction
= XFER_NONE
;
5343 c
->Request
.Timeout
= 0;
5345 case HPSA_GET_RAID_MAP
:
5346 c
->Request
.CDBLen
= 12;
5347 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5348 c
->Request
.Type
.Direction
= XFER_READ
;
5349 c
->Request
.Timeout
= 0;
5350 c
->Request
.CDB
[0] = HPSA_CISS_READ
;
5351 c
->Request
.CDB
[1] = cmd
;
5352 c
->Request
.CDB
[6] = (size
>> 24) & 0xFF; /* MSB */
5353 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5354 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5355 c
->Request
.CDB
[9] = size
& 0xFF;
5357 case BMIC_SENSE_CONTROLLER_PARAMETERS
:
5358 c
->Request
.CDBLen
= 10;
5359 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5360 c
->Request
.Type
.Direction
= XFER_READ
;
5361 c
->Request
.Timeout
= 0;
5362 c
->Request
.CDB
[0] = BMIC_READ
;
5363 c
->Request
.CDB
[6] = BMIC_SENSE_CONTROLLER_PARAMETERS
;
5364 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5365 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5368 dev_warn(&h
->pdev
->dev
, "unknown command 0x%c\n", cmd
);
5372 } else if (cmd_type
== TYPE_MSG
) {
5375 case HPSA_DEVICE_RESET_MSG
:
5376 c
->Request
.CDBLen
= 16;
5377 c
->Request
.Type
.Type
= 1; /* It is a MSG not a CMD */
5378 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5379 c
->Request
.Type
.Direction
= XFER_NONE
;
5380 c
->Request
.Timeout
= 0; /* Don't time out */
5381 memset(&c
->Request
.CDB
[0], 0, sizeof(c
->Request
.CDB
));
5382 c
->Request
.CDB
[0] = cmd
;
5383 c
->Request
.CDB
[1] = HPSA_RESET_TYPE_LUN
;
5384 /* If bytes 4-7 are zero, it means reset the */
5386 c
->Request
.CDB
[4] = 0x00;
5387 c
->Request
.CDB
[5] = 0x00;
5388 c
->Request
.CDB
[6] = 0x00;
5389 c
->Request
.CDB
[7] = 0x00;
5391 case HPSA_ABORT_MSG
:
5392 a
= buff
; /* point to command to be aborted */
5393 dev_dbg(&h
->pdev
->dev
, "Abort Tag:0x%08x:%08x using request Tag:0x%08x:%08x\n",
5394 a
->Header
.Tag
.upper
, a
->Header
.Tag
.lower
,
5395 c
->Header
.Tag
.upper
, c
->Header
.Tag
.lower
);
5396 c
->Request
.CDBLen
= 16;
5397 c
->Request
.Type
.Type
= TYPE_MSG
;
5398 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5399 c
->Request
.Type
.Direction
= XFER_WRITE
;
5400 c
->Request
.Timeout
= 0; /* Don't time out */
5401 c
->Request
.CDB
[0] = HPSA_TASK_MANAGEMENT
;
5402 c
->Request
.CDB
[1] = HPSA_TMF_ABORT_TASK
;
5403 c
->Request
.CDB
[2] = 0x00; /* reserved */
5404 c
->Request
.CDB
[3] = 0x00; /* reserved */
5405 /* Tag to abort goes in CDB[4]-CDB[11] */
5406 c
->Request
.CDB
[4] = a
->Header
.Tag
.lower
& 0xFF;
5407 c
->Request
.CDB
[5] = (a
->Header
.Tag
.lower
>> 8) & 0xFF;
5408 c
->Request
.CDB
[6] = (a
->Header
.Tag
.lower
>> 16) & 0xFF;
5409 c
->Request
.CDB
[7] = (a
->Header
.Tag
.lower
>> 24) & 0xFF;
5410 c
->Request
.CDB
[8] = a
->Header
.Tag
.upper
& 0xFF;
5411 c
->Request
.CDB
[9] = (a
->Header
.Tag
.upper
>> 8) & 0xFF;
5412 c
->Request
.CDB
[10] = (a
->Header
.Tag
.upper
>> 16) & 0xFF;
5413 c
->Request
.CDB
[11] = (a
->Header
.Tag
.upper
>> 24) & 0xFF;
5414 c
->Request
.CDB
[12] = 0x00; /* reserved */
5415 c
->Request
.CDB
[13] = 0x00; /* reserved */
5416 c
->Request
.CDB
[14] = 0x00; /* reserved */
5417 c
->Request
.CDB
[15] = 0x00; /* reserved */
5420 dev_warn(&h
->pdev
->dev
, "unknown message type %d\n",
5425 dev_warn(&h
->pdev
->dev
, "unknown command type %d\n", cmd_type
);
5429 switch (c
->Request
.Type
.Direction
) {
5431 pci_dir
= PCI_DMA_FROMDEVICE
;
5434 pci_dir
= PCI_DMA_TODEVICE
;
5437 pci_dir
= PCI_DMA_NONE
;
5440 pci_dir
= PCI_DMA_BIDIRECTIONAL
;
5442 if (hpsa_map_one(h
->pdev
, c
, buff
, size
, pci_dir
))
5448 * Map (physical) PCI mem into (virtual) kernel space
5450 static void __iomem
*remap_pci_mem(ulong base
, ulong size
)
5452 ulong page_base
= ((ulong
) base
) & PAGE_MASK
;
5453 ulong page_offs
= ((ulong
) base
) - page_base
;
5454 void __iomem
*page_remapped
= ioremap_nocache(page_base
,
5457 return page_remapped
? (page_remapped
+ page_offs
) : NULL
;
5460 /* Takes cmds off the submission queue and sends them to the hardware,
5461 * then puts them on the queue of cmds waiting for completion.
5463 static void start_io(struct ctlr_info
*h
)
5465 struct CommandList
*c
;
5466 unsigned long flags
;
5468 spin_lock_irqsave(&h
->lock
, flags
);
5469 while (!list_empty(&h
->reqQ
)) {
5470 c
= list_entry(h
->reqQ
.next
, struct CommandList
, list
);
5471 /* can't do anything if fifo is full */
5472 if ((h
->access
.fifo_full(h
))) {
5473 h
->fifo_recently_full
= 1;
5474 dev_warn(&h
->pdev
->dev
, "fifo full\n");
5477 h
->fifo_recently_full
= 0;
5479 /* Get the first entry from the Request Q */
5483 /* Put job onto the completed Q */
5486 /* Must increment commands_outstanding before unlocking
5487 * and submitting to avoid race checking for fifo full
5490 h
->commands_outstanding
++;
5491 if (h
->commands_outstanding
> h
->max_outstanding
)
5492 h
->max_outstanding
= h
->commands_outstanding
;
5494 /* Tell the controller execute command */
5495 spin_unlock_irqrestore(&h
->lock
, flags
);
5496 h
->access
.submit_command(h
, c
);
5497 spin_lock_irqsave(&h
->lock
, flags
);
5499 spin_unlock_irqrestore(&h
->lock
, flags
);
5502 static inline unsigned long get_next_completion(struct ctlr_info
*h
, u8 q
)
5504 return h
->access
.command_completed(h
, q
);
5507 static inline bool interrupt_pending(struct ctlr_info
*h
)
5509 return h
->access
.intr_pending(h
);
5512 static inline long interrupt_not_for_us(struct ctlr_info
*h
)
5514 return (h
->access
.intr_pending(h
) == 0) ||
5515 (h
->interrupts_enabled
== 0);
5518 static inline int bad_tag(struct ctlr_info
*h
, u32 tag_index
,
5521 if (unlikely(tag_index
>= h
->nr_cmds
)) {
5522 dev_warn(&h
->pdev
->dev
, "bad tag 0x%08x ignored.\n", raw_tag
);
5528 static inline void finish_cmd(struct CommandList
*c
)
5530 unsigned long flags
;
5531 int io_may_be_stalled
= 0;
5532 struct ctlr_info
*h
= c
->h
;
5534 spin_lock_irqsave(&h
->lock
, flags
);
5538 * Check for possibly stalled i/o.
5540 * If a fifo_full condition is encountered, requests will back up
5541 * in h->reqQ. This queue is only emptied out by start_io which is
5542 * only called when a new i/o request comes in. If no i/o's are
5543 * forthcoming, the i/o's in h->reqQ can get stuck. So we call
5544 * start_io from here if we detect such a danger.
5546 * Normally, we shouldn't hit this case, but pounding on the
5547 * CCISS_PASSTHRU ioctl can provoke it. Only call start_io if
5548 * commands_outstanding is low. We want to avoid calling
5549 * start_io from in here as much as possible, and esp. don't
5550 * want to get in a cycle where we call start_io every time
5553 if (unlikely(h
->fifo_recently_full
) &&
5554 h
->commands_outstanding
< 5)
5555 io_may_be_stalled
= 1;
5557 spin_unlock_irqrestore(&h
->lock
, flags
);
5559 dial_up_lockup_detection_on_fw_flash_complete(c
->h
, c
);
5560 if (likely(c
->cmd_type
== CMD_IOACCEL1
|| c
->cmd_type
== CMD_SCSI
5561 || c
->cmd_type
== CMD_IOACCEL2
))
5562 complete_scsi_command(c
);
5563 else if (c
->cmd_type
== CMD_IOCTL_PEND
)
5564 complete(c
->waiting
);
5565 if (unlikely(io_may_be_stalled
))
5569 static inline u32
hpsa_tag_contains_index(u32 tag
)
5571 return tag
& DIRECT_LOOKUP_BIT
;
5574 static inline u32
hpsa_tag_to_index(u32 tag
)
5576 return tag
>> DIRECT_LOOKUP_SHIFT
;
5580 static inline u32
hpsa_tag_discard_error_bits(struct ctlr_info
*h
, u32 tag
)
5582 #define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
5583 #define HPSA_SIMPLE_ERROR_BITS 0x03
5584 if (unlikely(!(h
->transMethod
& CFGTBL_Trans_Performant
)))
5585 return tag
& ~HPSA_SIMPLE_ERROR_BITS
;
5586 return tag
& ~HPSA_PERF_ERROR_BITS
;
5589 /* process completion of an indexed ("direct lookup") command */
5590 static inline void process_indexed_cmd(struct ctlr_info
*h
,
5594 struct CommandList
*c
;
5596 tag_index
= hpsa_tag_to_index(raw_tag
);
5597 if (!bad_tag(h
, tag_index
, raw_tag
)) {
5598 c
= h
->cmd_pool
+ tag_index
;
5603 /* process completion of a non-indexed command */
5604 static inline void process_nonindexed_cmd(struct ctlr_info
*h
,
5608 struct CommandList
*c
= NULL
;
5609 unsigned long flags
;
5611 tag
= hpsa_tag_discard_error_bits(h
, raw_tag
);
5612 spin_lock_irqsave(&h
->lock
, flags
);
5613 list_for_each_entry(c
, &h
->cmpQ
, list
) {
5614 if ((c
->busaddr
& 0xFFFFFFE0) == (tag
& 0xFFFFFFE0)) {
5615 spin_unlock_irqrestore(&h
->lock
, flags
);
5620 spin_unlock_irqrestore(&h
->lock
, flags
);
5621 bad_tag(h
, h
->nr_cmds
+ 1, raw_tag
);
5624 /* Some controllers, like p400, will give us one interrupt
5625 * after a soft reset, even if we turned interrupts off.
5626 * Only need to check for this in the hpsa_xxx_discard_completions
5629 static int ignore_bogus_interrupt(struct ctlr_info
*h
)
5631 if (likely(!reset_devices
))
5634 if (likely(h
->interrupts_enabled
))
5637 dev_info(&h
->pdev
->dev
, "Received interrupt while interrupts disabled "
5638 "(known firmware bug.) Ignoring.\n");
5644 * Convert &h->q[x] (passed to interrupt handlers) back to h.
5645 * Relies on (h-q[x] == x) being true for x such that
5646 * 0 <= x < MAX_REPLY_QUEUES.
5648 static struct ctlr_info
*queue_to_hba(u8
*queue
)
5650 return container_of((queue
- *queue
), struct ctlr_info
, q
[0]);
5653 static irqreturn_t
hpsa_intx_discard_completions(int irq
, void *queue
)
5655 struct ctlr_info
*h
= queue_to_hba(queue
);
5656 u8 q
= *(u8
*) queue
;
5659 if (ignore_bogus_interrupt(h
))
5662 if (interrupt_not_for_us(h
))
5664 h
->last_intr_timestamp
= get_jiffies_64();
5665 while (interrupt_pending(h
)) {
5666 raw_tag
= get_next_completion(h
, q
);
5667 while (raw_tag
!= FIFO_EMPTY
)
5668 raw_tag
= next_command(h
, q
);
5673 static irqreturn_t
hpsa_msix_discard_completions(int irq
, void *queue
)
5675 struct ctlr_info
*h
= queue_to_hba(queue
);
5677 u8 q
= *(u8
*) queue
;
5679 if (ignore_bogus_interrupt(h
))
5682 h
->last_intr_timestamp
= get_jiffies_64();
5683 raw_tag
= get_next_completion(h
, q
);
5684 while (raw_tag
!= FIFO_EMPTY
)
5685 raw_tag
= next_command(h
, q
);
5689 static irqreturn_t
do_hpsa_intr_intx(int irq
, void *queue
)
5691 struct ctlr_info
*h
= queue_to_hba((u8
*) queue
);
5693 u8 q
= *(u8
*) queue
;
5695 if (interrupt_not_for_us(h
))
5697 h
->last_intr_timestamp
= get_jiffies_64();
5698 while (interrupt_pending(h
)) {
5699 raw_tag
= get_next_completion(h
, q
);
5700 while (raw_tag
!= FIFO_EMPTY
) {
5701 if (likely(hpsa_tag_contains_index(raw_tag
)))
5702 process_indexed_cmd(h
, raw_tag
);
5704 process_nonindexed_cmd(h
, raw_tag
);
5705 raw_tag
= next_command(h
, q
);
5711 static irqreturn_t
do_hpsa_intr_msi(int irq
, void *queue
)
5713 struct ctlr_info
*h
= queue_to_hba(queue
);
5715 u8 q
= *(u8
*) queue
;
5717 h
->last_intr_timestamp
= get_jiffies_64();
5718 raw_tag
= get_next_completion(h
, q
);
5719 while (raw_tag
!= FIFO_EMPTY
) {
5720 if (likely(hpsa_tag_contains_index(raw_tag
)))
5721 process_indexed_cmd(h
, raw_tag
);
5723 process_nonindexed_cmd(h
, raw_tag
);
5724 raw_tag
= next_command(h
, q
);
5729 /* Send a message CDB to the firmware. Careful, this only works
5730 * in simple mode, not performant mode due to the tag lookup.
5731 * We only ever use this immediately after a controller reset.
5733 static int hpsa_message(struct pci_dev
*pdev
, unsigned char opcode
,
5737 struct CommandListHeader CommandHeader
;
5738 struct RequestBlock Request
;
5739 struct ErrDescriptor ErrorDescriptor
;
5741 struct Command
*cmd
;
5742 static const size_t cmd_sz
= sizeof(*cmd
) +
5743 sizeof(cmd
->ErrorDescriptor
);
5745 uint32_t paddr32
, tag
;
5746 void __iomem
*vaddr
;
5749 vaddr
= pci_ioremap_bar(pdev
, 0);
5753 /* The Inbound Post Queue only accepts 32-bit physical addresses for the
5754 * CCISS commands, so they must be allocated from the lower 4GiB of
5757 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32));
5763 cmd
= pci_alloc_consistent(pdev
, cmd_sz
, &paddr64
);
5769 /* This must fit, because of the 32-bit consistent DMA mask. Also,
5770 * although there's no guarantee, we assume that the address is at
5771 * least 4-byte aligned (most likely, it's page-aligned).
5775 cmd
->CommandHeader
.ReplyQueue
= 0;
5776 cmd
->CommandHeader
.SGList
= 0;
5777 cmd
->CommandHeader
.SGTotal
= 0;
5778 cmd
->CommandHeader
.Tag
.lower
= paddr32
;
5779 cmd
->CommandHeader
.Tag
.upper
= 0;
5780 memset(&cmd
->CommandHeader
.LUN
.LunAddrBytes
, 0, 8);
5782 cmd
->Request
.CDBLen
= 16;
5783 cmd
->Request
.Type
.Type
= TYPE_MSG
;
5784 cmd
->Request
.Type
.Attribute
= ATTR_HEADOFQUEUE
;
5785 cmd
->Request
.Type
.Direction
= XFER_NONE
;
5786 cmd
->Request
.Timeout
= 0; /* Don't time out */
5787 cmd
->Request
.CDB
[0] = opcode
;
5788 cmd
->Request
.CDB
[1] = type
;
5789 memset(&cmd
->Request
.CDB
[2], 0, 14); /* rest of the CDB is reserved */
5790 cmd
->ErrorDescriptor
.Addr
.lower
= paddr32
+ sizeof(*cmd
);
5791 cmd
->ErrorDescriptor
.Addr
.upper
= 0;
5792 cmd
->ErrorDescriptor
.Len
= sizeof(struct ErrorInfo
);
5794 writel(paddr32
, vaddr
+ SA5_REQUEST_PORT_OFFSET
);
5796 for (i
= 0; i
< HPSA_MSG_SEND_RETRY_LIMIT
; i
++) {
5797 tag
= readl(vaddr
+ SA5_REPLY_PORT_OFFSET
);
5798 if ((tag
& ~HPSA_SIMPLE_ERROR_BITS
) == paddr32
)
5800 msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS
);
5805 /* we leak the DMA buffer here ... no choice since the controller could
5806 * still complete the command.
5808 if (i
== HPSA_MSG_SEND_RETRY_LIMIT
) {
5809 dev_err(&pdev
->dev
, "controller message %02x:%02x timed out\n",
5814 pci_free_consistent(pdev
, cmd_sz
, cmd
, paddr64
);
5816 if (tag
& HPSA_ERROR_BIT
) {
5817 dev_err(&pdev
->dev
, "controller message %02x:%02x failed\n",
5822 dev_info(&pdev
->dev
, "controller message %02x:%02x succeeded\n",
5827 #define hpsa_noop(p) hpsa_message(p, 3, 0)
5829 static int hpsa_controller_hard_reset(struct pci_dev
*pdev
,
5830 void * __iomem vaddr
, u32 use_doorbell
)
5836 /* For everything after the P600, the PCI power state method
5837 * of resetting the controller doesn't work, so we have this
5838 * other way using the doorbell register.
5840 dev_info(&pdev
->dev
, "using doorbell to reset controller\n");
5841 writel(use_doorbell
, vaddr
+ SA5_DOORBELL
);
5843 /* PMC hardware guys tell us we need a 5 second delay after
5844 * doorbell reset and before any attempt to talk to the board
5845 * at all to ensure that this actually works and doesn't fall
5846 * over in some weird corner cases.
5849 } else { /* Try to do it the PCI power state way */
5851 /* Quoting from the Open CISS Specification: "The Power
5852 * Management Control/Status Register (CSR) controls the power
5853 * state of the device. The normal operating state is D0,
5854 * CSR=00h. The software off state is D3, CSR=03h. To reset
5855 * the controller, place the interface device in D3 then to D0,
5856 * this causes a secondary PCI reset which will reset the
5859 pos
= pci_find_capability(pdev
, PCI_CAP_ID_PM
);
5862 "hpsa_reset_controller: "
5863 "PCI PM not supported\n");
5866 dev_info(&pdev
->dev
, "using PCI PM to reset controller\n");
5867 /* enter the D3hot power management state */
5868 pci_read_config_word(pdev
, pos
+ PCI_PM_CTRL
, &pmcsr
);
5869 pmcsr
&= ~PCI_PM_CTRL_STATE_MASK
;
5871 pci_write_config_word(pdev
, pos
+ PCI_PM_CTRL
, pmcsr
);
5875 /* enter the D0 power management state */
5876 pmcsr
&= ~PCI_PM_CTRL_STATE_MASK
;
5878 pci_write_config_word(pdev
, pos
+ PCI_PM_CTRL
, pmcsr
);
5881 * The P600 requires a small delay when changing states.
5882 * Otherwise we may think the board did not reset and we bail.
5883 * This for kdump only and is particular to the P600.
5890 static void init_driver_version(char *driver_version
, int len
)
5892 memset(driver_version
, 0, len
);
5893 strncpy(driver_version
, HPSA
" " HPSA_DRIVER_VERSION
, len
- 1);
5896 static int write_driver_ver_to_cfgtable(struct CfgTable __iomem
*cfgtable
)
5898 char *driver_version
;
5899 int i
, size
= sizeof(cfgtable
->driver_version
);
5901 driver_version
= kmalloc(size
, GFP_KERNEL
);
5902 if (!driver_version
)
5905 init_driver_version(driver_version
, size
);
5906 for (i
= 0; i
< size
; i
++)
5907 writeb(driver_version
[i
], &cfgtable
->driver_version
[i
]);
5908 kfree(driver_version
);
5912 static void read_driver_ver_from_cfgtable(struct CfgTable __iomem
*cfgtable
,
5913 unsigned char *driver_ver
)
5917 for (i
= 0; i
< sizeof(cfgtable
->driver_version
); i
++)
5918 driver_ver
[i
] = readb(&cfgtable
->driver_version
[i
]);
5921 static int controller_reset_failed(struct CfgTable __iomem
*cfgtable
)
5924 char *driver_ver
, *old_driver_ver
;
5925 int rc
, size
= sizeof(cfgtable
->driver_version
);
5927 old_driver_ver
= kmalloc(2 * size
, GFP_KERNEL
);
5928 if (!old_driver_ver
)
5930 driver_ver
= old_driver_ver
+ size
;
5932 /* After a reset, the 32 bytes of "driver version" in the cfgtable
5933 * should have been changed, otherwise we know the reset failed.
5935 init_driver_version(old_driver_ver
, size
);
5936 read_driver_ver_from_cfgtable(cfgtable
, driver_ver
);
5937 rc
= !memcmp(driver_ver
, old_driver_ver
, size
);
5938 kfree(old_driver_ver
);
5941 /* This does a hard reset of the controller using PCI power management
5942 * states or the using the doorbell register.
5944 static int hpsa_kdump_hard_reset_controller(struct pci_dev
*pdev
)
5948 u64 cfg_base_addr_index
;
5949 void __iomem
*vaddr
;
5950 unsigned long paddr
;
5951 u32 misc_fw_support
;
5953 struct CfgTable __iomem
*cfgtable
;
5956 u16 command_register
;
5958 /* For controllers as old as the P600, this is very nearly
5961 * pci_save_state(pci_dev);
5962 * pci_set_power_state(pci_dev, PCI_D3hot);
5963 * pci_set_power_state(pci_dev, PCI_D0);
5964 * pci_restore_state(pci_dev);
5966 * For controllers newer than the P600, the pci power state
5967 * method of resetting doesn't work so we have another way
5968 * using the doorbell register.
5971 rc
= hpsa_lookup_board_id(pdev
, &board_id
);
5972 if (rc
< 0 || !ctlr_is_resettable(board_id
)) {
5973 dev_warn(&pdev
->dev
, "Not resetting device.\n");
5977 /* if controller is soft- but not hard resettable... */
5978 if (!ctlr_is_hard_resettable(board_id
))
5979 return -ENOTSUPP
; /* try soft reset later. */
5981 /* Save the PCI command register */
5982 pci_read_config_word(pdev
, 4, &command_register
);
5983 /* Turn the board off. This is so that later pci_restore_state()
5984 * won't turn the board on before the rest of config space is ready.
5986 pci_disable_device(pdev
);
5987 pci_save_state(pdev
);
5989 /* find the first memory BAR, so we can find the cfg table */
5990 rc
= hpsa_pci_find_memory_BAR(pdev
, &paddr
);
5993 vaddr
= remap_pci_mem(paddr
, 0x250);
5997 /* find cfgtable in order to check if reset via doorbell is supported */
5998 rc
= hpsa_find_cfg_addrs(pdev
, vaddr
, &cfg_base_addr
,
5999 &cfg_base_addr_index
, &cfg_offset
);
6002 cfgtable
= remap_pci_mem(pci_resource_start(pdev
,
6003 cfg_base_addr_index
) + cfg_offset
, sizeof(*cfgtable
));
6008 rc
= write_driver_ver_to_cfgtable(cfgtable
);
6012 /* If reset via doorbell register is supported, use that.
6013 * There are two such methods. Favor the newest method.
6015 misc_fw_support
= readl(&cfgtable
->misc_fw_support
);
6016 use_doorbell
= misc_fw_support
& MISC_FW_DOORBELL_RESET2
;
6018 use_doorbell
= DOORBELL_CTLR_RESET2
;
6020 use_doorbell
= misc_fw_support
& MISC_FW_DOORBELL_RESET
;
6022 dev_warn(&pdev
->dev
, "Soft reset not supported. "
6023 "Firmware update is required.\n");
6024 rc
= -ENOTSUPP
; /* try soft reset */
6025 goto unmap_cfgtable
;
6029 rc
= hpsa_controller_hard_reset(pdev
, vaddr
, use_doorbell
);
6031 goto unmap_cfgtable
;
6033 pci_restore_state(pdev
);
6034 rc
= pci_enable_device(pdev
);
6036 dev_warn(&pdev
->dev
, "failed to enable device.\n");
6037 goto unmap_cfgtable
;
6039 pci_write_config_word(pdev
, 4, command_register
);
6041 /* Some devices (notably the HP Smart Array 5i Controller)
6042 need a little pause here */
6043 msleep(HPSA_POST_RESET_PAUSE_MSECS
);
6045 rc
= hpsa_wait_for_board_state(pdev
, vaddr
, BOARD_READY
);
6047 dev_warn(&pdev
->dev
,
6048 "failed waiting for board to become ready "
6049 "after hard reset\n");
6050 goto unmap_cfgtable
;
6053 rc
= controller_reset_failed(vaddr
);
6055 goto unmap_cfgtable
;
6057 dev_warn(&pdev
->dev
, "Unable to successfully reset "
6058 "controller. Will try soft reset.\n");
6061 dev_info(&pdev
->dev
, "board ready after hard reset.\n");
6073 * We cannot read the structure directly, for portability we must use
6075 * This is for debug only.
6077 static void print_cfg_table(struct device
*dev
, struct CfgTable
*tb
)
6083 dev_info(dev
, "Controller Configuration information\n");
6084 dev_info(dev
, "------------------------------------\n");
6085 for (i
= 0; i
< 4; i
++)
6086 temp_name
[i
] = readb(&(tb
->Signature
[i
]));
6087 temp_name
[4] = '\0';
6088 dev_info(dev
, " Signature = %s\n", temp_name
);
6089 dev_info(dev
, " Spec Number = %d\n", readl(&(tb
->SpecValence
)));
6090 dev_info(dev
, " Transport methods supported = 0x%x\n",
6091 readl(&(tb
->TransportSupport
)));
6092 dev_info(dev
, " Transport methods active = 0x%x\n",
6093 readl(&(tb
->TransportActive
)));
6094 dev_info(dev
, " Requested transport Method = 0x%x\n",
6095 readl(&(tb
->HostWrite
.TransportRequest
)));
6096 dev_info(dev
, " Coalesce Interrupt Delay = 0x%x\n",
6097 readl(&(tb
->HostWrite
.CoalIntDelay
)));
6098 dev_info(dev
, " Coalesce Interrupt Count = 0x%x\n",
6099 readl(&(tb
->HostWrite
.CoalIntCount
)));
6100 dev_info(dev
, " Max outstanding commands = 0x%d\n",
6101 readl(&(tb
->CmdsOutMax
)));
6102 dev_info(dev
, " Bus Types = 0x%x\n", readl(&(tb
->BusTypes
)));
6103 for (i
= 0; i
< 16; i
++)
6104 temp_name
[i
] = readb(&(tb
->ServerName
[i
]));
6105 temp_name
[16] = '\0';
6106 dev_info(dev
, " Server Name = %s\n", temp_name
);
6107 dev_info(dev
, " Heartbeat Counter = 0x%x\n\n\n",
6108 readl(&(tb
->HeartBeat
)));
6109 #endif /* HPSA_DEBUG */
6112 static int find_PCI_BAR_index(struct pci_dev
*pdev
, unsigned long pci_bar_addr
)
6114 int i
, offset
, mem_type
, bar_type
;
6116 if (pci_bar_addr
== PCI_BASE_ADDRESS_0
) /* looking for BAR zero? */
6119 for (i
= 0; i
< DEVICE_COUNT_RESOURCE
; i
++) {
6120 bar_type
= pci_resource_flags(pdev
, i
) & PCI_BASE_ADDRESS_SPACE
;
6121 if (bar_type
== PCI_BASE_ADDRESS_SPACE_IO
)
6124 mem_type
= pci_resource_flags(pdev
, i
) &
6125 PCI_BASE_ADDRESS_MEM_TYPE_MASK
;
6127 case PCI_BASE_ADDRESS_MEM_TYPE_32
:
6128 case PCI_BASE_ADDRESS_MEM_TYPE_1M
:
6129 offset
+= 4; /* 32 bit */
6131 case PCI_BASE_ADDRESS_MEM_TYPE_64
:
6134 default: /* reserved in PCI 2.2 */
6135 dev_warn(&pdev
->dev
,
6136 "base address is invalid\n");
6141 if (offset
== pci_bar_addr
- PCI_BASE_ADDRESS_0
)
6147 /* If MSI/MSI-X is supported by the kernel we will try to enable it on
6148 * controllers that are capable. If not, we use IO-APIC mode.
6151 static void hpsa_interrupt_mode(struct ctlr_info
*h
)
6153 #ifdef CONFIG_PCI_MSI
6155 struct msix_entry hpsa_msix_entries
[MAX_REPLY_QUEUES
];
6157 for (i
= 0; i
< MAX_REPLY_QUEUES
; i
++) {
6158 hpsa_msix_entries
[i
].vector
= 0;
6159 hpsa_msix_entries
[i
].entry
= i
;
6162 /* Some boards advertise MSI but don't really support it */
6163 if ((h
->board_id
== 0x40700E11) || (h
->board_id
== 0x40800E11) ||
6164 (h
->board_id
== 0x40820E11) || (h
->board_id
== 0x40830E11))
6165 goto default_int_mode
;
6166 if (pci_find_capability(h
->pdev
, PCI_CAP_ID_MSIX
)) {
6167 dev_info(&h
->pdev
->dev
, "MSIX\n");
6168 h
->msix_vector
= MAX_REPLY_QUEUES
;
6169 err
= pci_enable_msix(h
->pdev
, hpsa_msix_entries
,
6172 dev_warn(&h
->pdev
->dev
, "only %d MSI-X vectors "
6173 "available\n", err
);
6174 h
->msix_vector
= err
;
6175 err
= pci_enable_msix(h
->pdev
, hpsa_msix_entries
,
6179 for (i
= 0; i
< h
->msix_vector
; i
++)
6180 h
->intr
[i
] = hpsa_msix_entries
[i
].vector
;
6183 dev_warn(&h
->pdev
->dev
, "MSI-X init failed %d\n",
6186 goto default_int_mode
;
6189 if (pci_find_capability(h
->pdev
, PCI_CAP_ID_MSI
)) {
6190 dev_info(&h
->pdev
->dev
, "MSI\n");
6191 if (!pci_enable_msi(h
->pdev
))
6194 dev_warn(&h
->pdev
->dev
, "MSI init failed\n");
6197 #endif /* CONFIG_PCI_MSI */
6198 /* if we get here we're going to use the default interrupt mode */
6199 h
->intr
[h
->intr_mode
] = h
->pdev
->irq
;
6202 static int hpsa_lookup_board_id(struct pci_dev
*pdev
, u32
*board_id
)
6205 u32 subsystem_vendor_id
, subsystem_device_id
;
6207 subsystem_vendor_id
= pdev
->subsystem_vendor
;
6208 subsystem_device_id
= pdev
->subsystem_device
;
6209 *board_id
= ((subsystem_device_id
<< 16) & 0xffff0000) |
6210 subsystem_vendor_id
;
6212 for (i
= 0; i
< ARRAY_SIZE(products
); i
++)
6213 if (*board_id
== products
[i
].board_id
)
6216 if ((subsystem_vendor_id
!= PCI_VENDOR_ID_HP
&&
6217 subsystem_vendor_id
!= PCI_VENDOR_ID_COMPAQ
) ||
6219 dev_warn(&pdev
->dev
, "unrecognized board ID: "
6220 "0x%08x, ignoring.\n", *board_id
);
6223 return ARRAY_SIZE(products
) - 1; /* generic unknown smart array */
6226 static int hpsa_pci_find_memory_BAR(struct pci_dev
*pdev
,
6227 unsigned long *memory_bar
)
6231 for (i
= 0; i
< DEVICE_COUNT_RESOURCE
; i
++)
6232 if (pci_resource_flags(pdev
, i
) & IORESOURCE_MEM
) {
6233 /* addressing mode bits already removed */
6234 *memory_bar
= pci_resource_start(pdev
, i
);
6235 dev_dbg(&pdev
->dev
, "memory BAR = %lx\n",
6239 dev_warn(&pdev
->dev
, "no memory BAR found\n");
6243 static int hpsa_wait_for_board_state(struct pci_dev
*pdev
, void __iomem
*vaddr
,
6249 iterations
= HPSA_BOARD_READY_ITERATIONS
;
6251 iterations
= HPSA_BOARD_NOT_READY_ITERATIONS
;
6253 for (i
= 0; i
< iterations
; i
++) {
6254 scratchpad
= readl(vaddr
+ SA5_SCRATCHPAD_OFFSET
);
6255 if (wait_for_ready
) {
6256 if (scratchpad
== HPSA_FIRMWARE_READY
)
6259 if (scratchpad
!= HPSA_FIRMWARE_READY
)
6262 msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS
);
6264 dev_warn(&pdev
->dev
, "board not ready, timed out.\n");
6268 static int hpsa_find_cfg_addrs(struct pci_dev
*pdev
, void __iomem
*vaddr
,
6269 u32
*cfg_base_addr
, u64
*cfg_base_addr_index
,
6272 *cfg_base_addr
= readl(vaddr
+ SA5_CTCFG_OFFSET
);
6273 *cfg_offset
= readl(vaddr
+ SA5_CTMEM_OFFSET
);
6274 *cfg_base_addr
&= (u32
) 0x0000ffff;
6275 *cfg_base_addr_index
= find_PCI_BAR_index(pdev
, *cfg_base_addr
);
6276 if (*cfg_base_addr_index
== -1) {
6277 dev_warn(&pdev
->dev
, "cannot find cfg_base_addr_index\n");
6283 static int hpsa_find_cfgtables(struct ctlr_info
*h
)
6287 u64 cfg_base_addr_index
;
6291 rc
= hpsa_find_cfg_addrs(h
->pdev
, h
->vaddr
, &cfg_base_addr
,
6292 &cfg_base_addr_index
, &cfg_offset
);
6295 h
->cfgtable
= remap_pci_mem(pci_resource_start(h
->pdev
,
6296 cfg_base_addr_index
) + cfg_offset
, sizeof(*h
->cfgtable
));
6299 rc
= write_driver_ver_to_cfgtable(h
->cfgtable
);
6302 /* Find performant mode table. */
6303 trans_offset
= readl(&h
->cfgtable
->TransMethodOffset
);
6304 h
->transtable
= remap_pci_mem(pci_resource_start(h
->pdev
,
6305 cfg_base_addr_index
)+cfg_offset
+trans_offset
,
6306 sizeof(*h
->transtable
));
6312 static void hpsa_get_max_perf_mode_cmds(struct ctlr_info
*h
)
6314 h
->max_commands
= readl(&(h
->cfgtable
->MaxPerformantModeCommands
));
6316 /* Limit commands in memory limited kdump scenario. */
6317 if (reset_devices
&& h
->max_commands
> 32)
6318 h
->max_commands
= 32;
6320 if (h
->max_commands
< 16) {
6321 dev_warn(&h
->pdev
->dev
, "Controller reports "
6322 "max supported commands of %d, an obvious lie. "
6323 "Using 16. Ensure that firmware is up to date.\n",
6325 h
->max_commands
= 16;
6329 /* Interrogate the hardware for some limits:
6330 * max commands, max SG elements without chaining, and with chaining,
6331 * SG chain block size, etc.
6333 static void hpsa_find_board_params(struct ctlr_info
*h
)
6335 hpsa_get_max_perf_mode_cmds(h
);
6336 h
->nr_cmds
= h
->max_commands
- 4; /* Allow room for some ioctls */
6337 h
->maxsgentries
= readl(&(h
->cfgtable
->MaxScatterGatherElements
));
6338 h
->fw_support
= readl(&(h
->cfgtable
->misc_fw_support
));
6340 * Limit in-command s/g elements to 32 save dma'able memory.
6341 * Howvever spec says if 0, use 31
6343 h
->max_cmd_sg_entries
= 31;
6344 if (h
->maxsgentries
> 512) {
6345 h
->max_cmd_sg_entries
= 32;
6346 h
->chainsize
= h
->maxsgentries
- h
->max_cmd_sg_entries
+ 1;
6347 h
->maxsgentries
--; /* save one for chain pointer */
6349 h
->maxsgentries
= 31; /* default to traditional values */
6353 /* Find out what task management functions are supported and cache */
6354 h
->TMFSupportFlags
= readl(&(h
->cfgtable
->TMFSupportFlags
));
6355 if (!(HPSATMF_PHYS_TASK_ABORT
& h
->TMFSupportFlags
))
6356 dev_warn(&h
->pdev
->dev
, "Physical aborts not supported\n");
6357 if (!(HPSATMF_LOG_TASK_ABORT
& h
->TMFSupportFlags
))
6358 dev_warn(&h
->pdev
->dev
, "Logical aborts not supported\n");
6361 static inline bool hpsa_CISS_signature_present(struct ctlr_info
*h
)
6363 if (!check_signature(h
->cfgtable
->Signature
, "CISS", 4)) {
6364 dev_warn(&h
->pdev
->dev
, "not a valid CISS config table\n");
6370 static inline void hpsa_set_driver_support_bits(struct ctlr_info
*h
)
6375 /* Need to enable prefetch in the SCSI core for 6400 in x86 */
6376 driver_support
= readl(&(h
->cfgtable
->driver_support
));
6377 driver_support
|= ENABLE_SCSI_PREFETCH
;
6379 driver_support
|= ENABLE_UNIT_ATTN
;
6380 writel(driver_support
, &(h
->cfgtable
->driver_support
));
6383 /* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result
6384 * in a prefetch beyond physical memory.
6386 static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info
*h
)
6390 if (h
->board_id
!= 0x3225103C)
6392 dma_prefetch
= readl(h
->vaddr
+ I2O_DMA1_CFG
);
6393 dma_prefetch
|= 0x8000;
6394 writel(dma_prefetch
, h
->vaddr
+ I2O_DMA1_CFG
);
6397 static void hpsa_wait_for_clear_event_notify_ack(struct ctlr_info
*h
)
6401 unsigned long flags
;
6402 /* wait until the clear_event_notify bit 6 is cleared by controller. */
6403 for (i
= 0; i
< MAX_CONFIG_WAIT
; i
++) {
6404 spin_lock_irqsave(&h
->lock
, flags
);
6405 doorbell_value
= readl(h
->vaddr
+ SA5_DOORBELL
);
6406 spin_unlock_irqrestore(&h
->lock
, flags
);
6407 if (!(doorbell_value
& DOORBELL_CLEAR_EVENTS
))
6409 /* delay and try again */
6414 static void hpsa_wait_for_mode_change_ack(struct ctlr_info
*h
)
6418 unsigned long flags
;
6420 /* under certain very rare conditions, this can take awhile.
6421 * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
6422 * as we enter this code.)
6424 for (i
= 0; i
< MAX_CONFIG_WAIT
; i
++) {
6425 spin_lock_irqsave(&h
->lock
, flags
);
6426 doorbell_value
= readl(h
->vaddr
+ SA5_DOORBELL
);
6427 spin_unlock_irqrestore(&h
->lock
, flags
);
6428 if (!(doorbell_value
& CFGTBL_ChangeReq
))
6430 /* delay and try again */
6431 usleep_range(10000, 20000);
6435 static int hpsa_enter_simple_mode(struct ctlr_info
*h
)
6439 trans_support
= readl(&(h
->cfgtable
->TransportSupport
));
6440 if (!(trans_support
& SIMPLE_MODE
))
6443 h
->max_commands
= readl(&(h
->cfgtable
->CmdsOutMax
));
6445 /* Update the field, and then ring the doorbell */
6446 writel(CFGTBL_Trans_Simple
, &(h
->cfgtable
->HostWrite
.TransportRequest
));
6447 writel(0, &h
->cfgtable
->HostWrite
.command_pool_addr_hi
);
6448 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
6449 hpsa_wait_for_mode_change_ack(h
);
6450 print_cfg_table(&h
->pdev
->dev
, h
->cfgtable
);
6451 if (!(readl(&(h
->cfgtable
->TransportActive
)) & CFGTBL_Trans_Simple
))
6453 h
->transMethod
= CFGTBL_Trans_Simple
;
6456 dev_warn(&h
->pdev
->dev
, "unable to get board into simple mode\n");
6460 static int hpsa_pci_init(struct ctlr_info
*h
)
6462 int prod_index
, err
;
6464 prod_index
= hpsa_lookup_board_id(h
->pdev
, &h
->board_id
);
6467 h
->product_name
= products
[prod_index
].product_name
;
6468 h
->access
= *(products
[prod_index
].access
);
6470 pci_disable_link_state(h
->pdev
, PCIE_LINK_STATE_L0S
|
6471 PCIE_LINK_STATE_L1
| PCIE_LINK_STATE_CLKPM
);
6473 err
= pci_enable_device(h
->pdev
);
6475 dev_warn(&h
->pdev
->dev
, "unable to enable PCI device\n");
6479 /* Enable bus mastering (pci_disable_device may disable this) */
6480 pci_set_master(h
->pdev
);
6482 err
= pci_request_regions(h
->pdev
, HPSA
);
6484 dev_err(&h
->pdev
->dev
,
6485 "cannot obtain PCI resources, aborting\n");
6488 hpsa_interrupt_mode(h
);
6489 err
= hpsa_pci_find_memory_BAR(h
->pdev
, &h
->paddr
);
6491 goto err_out_free_res
;
6492 h
->vaddr
= remap_pci_mem(h
->paddr
, 0x250);
6495 goto err_out_free_res
;
6497 err
= hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_READY
);
6499 goto err_out_free_res
;
6500 err
= hpsa_find_cfgtables(h
);
6502 goto err_out_free_res
;
6503 hpsa_find_board_params(h
);
6505 if (!hpsa_CISS_signature_present(h
)) {
6507 goto err_out_free_res
;
6509 hpsa_set_driver_support_bits(h
);
6510 hpsa_p600_dma_prefetch_quirk(h
);
6511 err
= hpsa_enter_simple_mode(h
);
6513 goto err_out_free_res
;
6518 iounmap(h
->transtable
);
6520 iounmap(h
->cfgtable
);
6523 pci_disable_device(h
->pdev
);
6524 pci_release_regions(h
->pdev
);
6528 static void hpsa_hba_inquiry(struct ctlr_info
*h
)
6532 #define HBA_INQUIRY_BYTE_COUNT 64
6533 h
->hba_inquiry_data
= kmalloc(HBA_INQUIRY_BYTE_COUNT
, GFP_KERNEL
);
6534 if (!h
->hba_inquiry_data
)
6536 rc
= hpsa_scsi_do_inquiry(h
, RAID_CTLR_LUNID
, 0,
6537 h
->hba_inquiry_data
, HBA_INQUIRY_BYTE_COUNT
);
6539 kfree(h
->hba_inquiry_data
);
6540 h
->hba_inquiry_data
= NULL
;
6544 static int hpsa_init_reset_devices(struct pci_dev
*pdev
)
6551 /* Reset the controller with a PCI power-cycle or via doorbell */
6552 rc
= hpsa_kdump_hard_reset_controller(pdev
);
6554 /* -ENOTSUPP here means we cannot reset the controller
6555 * but it's already (and still) up and running in
6556 * "performant mode". Or, it might be 640x, which can't reset
6557 * due to concerns about shared bbwc between 6402/6404 pair.
6559 if (rc
== -ENOTSUPP
)
6560 return rc
; /* just try to do the kdump anyhow. */
6564 /* Now try to get the controller to respond to a no-op */
6565 dev_warn(&pdev
->dev
, "Waiting for controller to respond to no-op\n");
6566 for (i
= 0; i
< HPSA_POST_RESET_NOOP_RETRIES
; i
++) {
6567 if (hpsa_noop(pdev
) == 0)
6570 dev_warn(&pdev
->dev
, "no-op failed%s\n",
6571 (i
< 11 ? "; re-trying" : ""));
6576 static int hpsa_allocate_cmd_pool(struct ctlr_info
*h
)
6578 h
->cmd_pool_bits
= kzalloc(
6579 DIV_ROUND_UP(h
->nr_cmds
, BITS_PER_LONG
) *
6580 sizeof(unsigned long), GFP_KERNEL
);
6581 h
->cmd_pool
= pci_alloc_consistent(h
->pdev
,
6582 h
->nr_cmds
* sizeof(*h
->cmd_pool
),
6583 &(h
->cmd_pool_dhandle
));
6584 h
->errinfo_pool
= pci_alloc_consistent(h
->pdev
,
6585 h
->nr_cmds
* sizeof(*h
->errinfo_pool
),
6586 &(h
->errinfo_pool_dhandle
));
6587 if ((h
->cmd_pool_bits
== NULL
)
6588 || (h
->cmd_pool
== NULL
)
6589 || (h
->errinfo_pool
== NULL
)) {
6590 dev_err(&h
->pdev
->dev
, "out of memory in %s", __func__
);
6596 static void hpsa_free_cmd_pool(struct ctlr_info
*h
)
6598 kfree(h
->cmd_pool_bits
);
6600 pci_free_consistent(h
->pdev
,
6601 h
->nr_cmds
* sizeof(struct CommandList
),
6602 h
->cmd_pool
, h
->cmd_pool_dhandle
);
6603 if (h
->ioaccel2_cmd_pool
)
6604 pci_free_consistent(h
->pdev
,
6605 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
6606 h
->ioaccel2_cmd_pool
, h
->ioaccel2_cmd_pool_dhandle
);
6607 if (h
->errinfo_pool
)
6608 pci_free_consistent(h
->pdev
,
6609 h
->nr_cmds
* sizeof(struct ErrorInfo
),
6611 h
->errinfo_pool_dhandle
);
6612 if (h
->ioaccel_cmd_pool
)
6613 pci_free_consistent(h
->pdev
,
6614 h
->nr_cmds
* sizeof(struct io_accel1_cmd
),
6615 h
->ioaccel_cmd_pool
, h
->ioaccel_cmd_pool_dhandle
);
6618 static int hpsa_request_irq(struct ctlr_info
*h
,
6619 irqreturn_t (*msixhandler
)(int, void *),
6620 irqreturn_t (*intxhandler
)(int, void *))
6625 * initialize h->q[x] = x so that interrupt handlers know which
6628 for (i
= 0; i
< MAX_REPLY_QUEUES
; i
++)
6631 if (h
->intr_mode
== PERF_MODE_INT
&& h
->msix_vector
> 0) {
6632 /* If performant mode and MSI-X, use multiple reply queues */
6633 for (i
= 0; i
< h
->msix_vector
; i
++)
6634 rc
= request_irq(h
->intr
[i
], msixhandler
,
6638 /* Use single reply pool */
6639 if (h
->msix_vector
> 0 || h
->msi_vector
) {
6640 rc
= request_irq(h
->intr
[h
->intr_mode
],
6641 msixhandler
, 0, h
->devname
,
6642 &h
->q
[h
->intr_mode
]);
6644 rc
= request_irq(h
->intr
[h
->intr_mode
],
6645 intxhandler
, IRQF_SHARED
, h
->devname
,
6646 &h
->q
[h
->intr_mode
]);
6650 dev_err(&h
->pdev
->dev
, "unable to get irq %d for %s\n",
6651 h
->intr
[h
->intr_mode
], h
->devname
);
6657 static int hpsa_kdump_soft_reset(struct ctlr_info
*h
)
6659 if (hpsa_send_host_reset(h
, RAID_CTLR_LUNID
,
6660 HPSA_RESET_TYPE_CONTROLLER
)) {
6661 dev_warn(&h
->pdev
->dev
, "Resetting array controller failed.\n");
6665 dev_info(&h
->pdev
->dev
, "Waiting for board to soft reset.\n");
6666 if (hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_NOT_READY
)) {
6667 dev_warn(&h
->pdev
->dev
, "Soft reset had no effect.\n");
6671 dev_info(&h
->pdev
->dev
, "Board reset, awaiting READY status.\n");
6672 if (hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_READY
)) {
6673 dev_warn(&h
->pdev
->dev
, "Board failed to become ready "
6674 "after soft reset.\n");
6681 static void free_irqs(struct ctlr_info
*h
)
6685 if (!h
->msix_vector
|| h
->intr_mode
!= PERF_MODE_INT
) {
6686 /* Single reply queue, only one irq to free */
6688 free_irq(h
->intr
[i
], &h
->q
[i
]);
6692 for (i
= 0; i
< h
->msix_vector
; i
++)
6693 free_irq(h
->intr
[i
], &h
->q
[i
]);
6696 static void hpsa_free_irqs_and_disable_msix(struct ctlr_info
*h
)
6699 #ifdef CONFIG_PCI_MSI
6700 if (h
->msix_vector
) {
6701 if (h
->pdev
->msix_enabled
)
6702 pci_disable_msix(h
->pdev
);
6703 } else if (h
->msi_vector
) {
6704 if (h
->pdev
->msi_enabled
)
6705 pci_disable_msi(h
->pdev
);
6707 #endif /* CONFIG_PCI_MSI */
6710 static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info
*h
)
6712 hpsa_free_irqs_and_disable_msix(h
);
6713 hpsa_free_sg_chain_blocks(h
);
6714 hpsa_free_cmd_pool(h
);
6715 kfree(h
->ioaccel1_blockFetchTable
);
6716 kfree(h
->blockFetchTable
);
6717 pci_free_consistent(h
->pdev
, h
->reply_pool_size
,
6718 h
->reply_pool
, h
->reply_pool_dhandle
);
6722 iounmap(h
->transtable
);
6724 iounmap(h
->cfgtable
);
6725 pci_release_regions(h
->pdev
);
6729 /* Called when controller lockup detected. */
6730 static void fail_all_cmds_on_list(struct ctlr_info
*h
, struct list_head
*list
)
6732 struct CommandList
*c
= NULL
;
6734 assert_spin_locked(&h
->lock
);
6735 /* Mark all outstanding commands as failed and complete them. */
6736 while (!list_empty(list
)) {
6737 c
= list_entry(list
->next
, struct CommandList
, list
);
6738 c
->err_info
->CommandStatus
= CMD_HARDWARE_ERR
;
6743 static void controller_lockup_detected(struct ctlr_info
*h
)
6745 unsigned long flags
;
6747 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
6748 spin_lock_irqsave(&h
->lock
, flags
);
6749 h
->lockup_detected
= readl(h
->vaddr
+ SA5_SCRATCHPAD_OFFSET
);
6750 spin_unlock_irqrestore(&h
->lock
, flags
);
6751 dev_warn(&h
->pdev
->dev
, "Controller lockup detected: 0x%08x\n",
6752 h
->lockup_detected
);
6753 pci_disable_device(h
->pdev
);
6754 spin_lock_irqsave(&h
->lock
, flags
);
6755 fail_all_cmds_on_list(h
, &h
->cmpQ
);
6756 fail_all_cmds_on_list(h
, &h
->reqQ
);
6757 spin_unlock_irqrestore(&h
->lock
, flags
);
6760 static void detect_controller_lockup(struct ctlr_info
*h
)
6764 unsigned long flags
;
6766 now
= get_jiffies_64();
6767 /* If we've received an interrupt recently, we're ok. */
6768 if (time_after64(h
->last_intr_timestamp
+
6769 (h
->heartbeat_sample_interval
), now
))
6773 * If we've already checked the heartbeat recently, we're ok.
6774 * This could happen if someone sends us a signal. We
6775 * otherwise don't care about signals in this thread.
6777 if (time_after64(h
->last_heartbeat_timestamp
+
6778 (h
->heartbeat_sample_interval
), now
))
6781 /* If heartbeat has not changed since we last looked, we're not ok. */
6782 spin_lock_irqsave(&h
->lock
, flags
);
6783 heartbeat
= readl(&h
->cfgtable
->HeartBeat
);
6784 spin_unlock_irqrestore(&h
->lock
, flags
);
6785 if (h
->last_heartbeat
== heartbeat
) {
6786 controller_lockup_detected(h
);
6791 h
->last_heartbeat
= heartbeat
;
6792 h
->last_heartbeat_timestamp
= now
;
6795 static void hpsa_ack_ctlr_events(struct ctlr_info
*h
)
6800 /* Clear the driver-requested rescan flag */
6801 h
->drv_req_rescan
= 0;
6803 /* Ask the controller to clear the events we're handling. */
6804 if ((h
->transMethod
& (CFGTBL_Trans_io_accel1
6805 | CFGTBL_Trans_io_accel2
)) &&
6806 (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE
||
6807 h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE
)) {
6809 if (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE
)
6810 event_type
= "state change";
6811 if (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE
)
6812 event_type
= "configuration change";
6813 /* Stop sending new RAID offload reqs via the IO accelerator */
6814 scsi_block_requests(h
->scsi_host
);
6815 for (i
= 0; i
< h
->ndevices
; i
++)
6816 h
->dev
[i
]->offload_enabled
= 0;
6817 hpsa_drain_accel_commands(h
);
6818 /* Set 'accelerator path config change' bit */
6819 dev_warn(&h
->pdev
->dev
,
6820 "Acknowledging event: 0x%08x (HP SSD Smart Path %s)\n",
6821 h
->events
, event_type
);
6822 writel(h
->events
, &(h
->cfgtable
->clear_event_notify
));
6823 /* Set the "clear event notify field update" bit 6 */
6824 writel(DOORBELL_CLEAR_EVENTS
, h
->vaddr
+ SA5_DOORBELL
);
6825 /* Wait until ctlr clears 'clear event notify field', bit 6 */
6826 hpsa_wait_for_clear_event_notify_ack(h
);
6827 scsi_unblock_requests(h
->scsi_host
);
6829 /* Acknowledge controller notification events. */
6830 writel(h
->events
, &(h
->cfgtable
->clear_event_notify
));
6831 writel(DOORBELL_CLEAR_EVENTS
, h
->vaddr
+ SA5_DOORBELL
);
6832 hpsa_wait_for_clear_event_notify_ack(h
);
6834 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
6835 hpsa_wait_for_mode_change_ack(h
);
6841 /* Check a register on the controller to see if there are configuration
6842 * changes (added/changed/removed logical drives, etc.) which mean that
6843 * we should rescan the controller for devices.
6844 * Also check flag for driver-initiated rescan.
6846 static int hpsa_ctlr_needs_rescan(struct ctlr_info
*h
)
6848 if (h
->drv_req_rescan
)
6851 if (!(h
->fw_support
& MISC_FW_EVENT_NOTIFY
))
6854 h
->events
= readl(&(h
->cfgtable
->event_notify
));
6855 return h
->events
& RESCAN_REQUIRED_EVENT_BITS
;
6859 * Check if any of the offline devices have become ready
6861 static int hpsa_offline_devices_ready(struct ctlr_info
*h
)
6863 unsigned long flags
;
6864 struct offline_device_entry
*d
;
6865 struct list_head
*this, *tmp
;
6867 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6868 list_for_each_safe(this, tmp
, &h
->offline_device_list
) {
6869 d
= list_entry(this, struct offline_device_entry
,
6871 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6872 if (!hpsa_volume_offline(h
, d
->scsi3addr
))
6874 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6876 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6881 static void hpsa_monitor_ctlr_worker(struct work_struct
*work
)
6883 unsigned long flags
;
6884 struct ctlr_info
*h
= container_of(to_delayed_work(work
),
6885 struct ctlr_info
, monitor_ctlr_work
);
6886 detect_controller_lockup(h
);
6887 if (h
->lockup_detected
)
6890 if (hpsa_ctlr_needs_rescan(h
) || hpsa_offline_devices_ready(h
)) {
6891 scsi_host_get(h
->scsi_host
);
6892 h
->drv_req_rescan
= 0;
6893 hpsa_ack_ctlr_events(h
);
6894 hpsa_scan_start(h
->scsi_host
);
6895 scsi_host_put(h
->scsi_host
);
6898 spin_lock_irqsave(&h
->lock
, flags
);
6899 if (h
->remove_in_progress
) {
6900 spin_unlock_irqrestore(&h
->lock
, flags
);
6903 schedule_delayed_work(&h
->monitor_ctlr_work
,
6904 h
->heartbeat_sample_interval
);
6905 spin_unlock_irqrestore(&h
->lock
, flags
);
6908 static int hpsa_init_one(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
6911 struct ctlr_info
*h
;
6912 int try_soft_reset
= 0;
6913 unsigned long flags
;
6915 if (number_of_controllers
== 0)
6916 printk(KERN_INFO DRIVER_NAME
"\n");
6918 rc
= hpsa_init_reset_devices(pdev
);
6920 if (rc
!= -ENOTSUPP
)
6922 /* If the reset fails in a particular way (it has no way to do
6923 * a proper hard reset, so returns -ENOTSUPP) we can try to do
6924 * a soft reset once we get the controller configured up to the
6925 * point that it can accept a command.
6931 reinit_after_soft_reset
:
6933 /* Command structures must be aligned on a 32-byte boundary because
6934 * the 5 lower bits of the address are used by the hardware. and by
6935 * the driver. See comments in hpsa.h for more info.
6937 #define COMMANDLIST_ALIGNMENT 128
6938 BUILD_BUG_ON(sizeof(struct CommandList
) % COMMANDLIST_ALIGNMENT
);
6939 h
= kzalloc(sizeof(*h
), GFP_KERNEL
);
6944 h
->intr_mode
= hpsa_simple_mode
? SIMPLE_MODE_INT
: PERF_MODE_INT
;
6945 INIT_LIST_HEAD(&h
->cmpQ
);
6946 INIT_LIST_HEAD(&h
->reqQ
);
6947 INIT_LIST_HEAD(&h
->offline_device_list
);
6948 spin_lock_init(&h
->lock
);
6949 spin_lock_init(&h
->offline_device_lock
);
6950 spin_lock_init(&h
->scan_lock
);
6951 spin_lock_init(&h
->passthru_count_lock
);
6952 rc
= hpsa_pci_init(h
);
6956 sprintf(h
->devname
, HPSA
"%d", number_of_controllers
);
6957 h
->ctlr
= number_of_controllers
;
6958 number_of_controllers
++;
6960 /* configure PCI DMA stuff */
6961 rc
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
6965 rc
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
6969 dev_err(&pdev
->dev
, "no suitable DMA available\n");
6974 /* make sure the board interrupts are off */
6975 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
6977 if (hpsa_request_irq(h
, do_hpsa_intr_msi
, do_hpsa_intr_intx
))
6979 dev_info(&pdev
->dev
, "%s: <0x%x> at IRQ %d%s using DAC\n",
6980 h
->devname
, pdev
->device
,
6981 h
->intr
[h
->intr_mode
], dac
? "" : " not");
6982 if (hpsa_allocate_cmd_pool(h
))
6984 if (hpsa_allocate_sg_chain_blocks(h
))
6986 init_waitqueue_head(&h
->scan_wait_queue
);
6987 h
->scan_finished
= 1; /* no scan currently in progress */
6989 pci_set_drvdata(pdev
, h
);
6991 h
->hba_mode_enabled
= 0;
6992 h
->scsi_host
= NULL
;
6993 spin_lock_init(&h
->devlock
);
6994 hpsa_put_ctlr_into_performant_mode(h
);
6996 /* At this point, the controller is ready to take commands.
6997 * Now, if reset_devices and the hard reset didn't work, try
6998 * the soft reset and see if that works.
7000 if (try_soft_reset
) {
7002 /* This is kind of gross. We may or may not get a completion
7003 * from the soft reset command, and if we do, then the value
7004 * from the fifo may or may not be valid. So, we wait 10 secs
7005 * after the reset throwing away any completions we get during
7006 * that time. Unregister the interrupt handler and register
7007 * fake ones to scoop up any residual completions.
7009 spin_lock_irqsave(&h
->lock
, flags
);
7010 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7011 spin_unlock_irqrestore(&h
->lock
, flags
);
7013 rc
= hpsa_request_irq(h
, hpsa_msix_discard_completions
,
7014 hpsa_intx_discard_completions
);
7016 dev_warn(&h
->pdev
->dev
, "Failed to request_irq after "
7021 rc
= hpsa_kdump_soft_reset(h
);
7023 /* Neither hard nor soft reset worked, we're hosed. */
7026 dev_info(&h
->pdev
->dev
, "Board READY.\n");
7027 dev_info(&h
->pdev
->dev
,
7028 "Waiting for stale completions to drain.\n");
7029 h
->access
.set_intr_mask(h
, HPSA_INTR_ON
);
7031 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7033 rc
= controller_reset_failed(h
->cfgtable
);
7035 dev_info(&h
->pdev
->dev
,
7036 "Soft reset appears to have failed.\n");
7038 /* since the controller's reset, we have to go back and re-init
7039 * everything. Easiest to just forget what we've done and do it
7042 hpsa_undo_allocations_after_kdump_soft_reset(h
);
7045 /* don't go to clean4, we already unallocated */
7048 goto reinit_after_soft_reset
;
7051 /* Enable Accelerated IO path at driver layer */
7052 h
->acciopath_status
= 1;
7054 h
->drv_req_rescan
= 0;
7056 /* Turn the interrupts on so we can service requests */
7057 h
->access
.set_intr_mask(h
, HPSA_INTR_ON
);
7059 hpsa_hba_inquiry(h
);
7060 hpsa_register_scsi(h
); /* hook ourselves into SCSI subsystem */
7062 /* Monitor the controller for firmware lockups */
7063 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL
;
7064 INIT_DELAYED_WORK(&h
->monitor_ctlr_work
, hpsa_monitor_ctlr_worker
);
7065 schedule_delayed_work(&h
->monitor_ctlr_work
,
7066 h
->heartbeat_sample_interval
);
7070 hpsa_free_sg_chain_blocks(h
);
7071 hpsa_free_cmd_pool(h
);
7079 static void hpsa_flush_cache(struct ctlr_info
*h
)
7082 struct CommandList
*c
;
7083 unsigned long flags
;
7085 /* Don't bother trying to flush the cache if locked up */
7086 spin_lock_irqsave(&h
->lock
, flags
);
7087 if (unlikely(h
->lockup_detected
)) {
7088 spin_unlock_irqrestore(&h
->lock
, flags
);
7091 spin_unlock_irqrestore(&h
->lock
, flags
);
7093 flush_buf
= kzalloc(4, GFP_KERNEL
);
7097 c
= cmd_special_alloc(h
);
7099 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
7102 if (fill_cmd(c
, HPSA_CACHE_FLUSH
, h
, flush_buf
, 4, 0,
7103 RAID_CTLR_LUNID
, TYPE_CMD
)) {
7106 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_TODEVICE
);
7107 if (c
->err_info
->CommandStatus
!= 0)
7109 dev_warn(&h
->pdev
->dev
,
7110 "error flushing cache on controller\n");
7111 cmd_special_free(h
, c
);
7116 static void hpsa_shutdown(struct pci_dev
*pdev
)
7118 struct ctlr_info
*h
;
7120 h
= pci_get_drvdata(pdev
);
7121 /* Turn board interrupts off and send the flush cache command
7122 * sendcmd will turn off interrupt, and send the flush...
7123 * To write all data in the battery backed cache to disks
7125 hpsa_flush_cache(h
);
7126 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7127 hpsa_free_irqs_and_disable_msix(h
);
7130 static void hpsa_free_device_info(struct ctlr_info
*h
)
7134 for (i
= 0; i
< h
->ndevices
; i
++)
7138 static void hpsa_remove_one(struct pci_dev
*pdev
)
7140 struct ctlr_info
*h
;
7141 unsigned long flags
;
7143 if (pci_get_drvdata(pdev
) == NULL
) {
7144 dev_err(&pdev
->dev
, "unable to remove device\n");
7147 h
= pci_get_drvdata(pdev
);
7149 /* Get rid of any controller monitoring work items */
7150 spin_lock_irqsave(&h
->lock
, flags
);
7151 h
->remove_in_progress
= 1;
7152 cancel_delayed_work(&h
->monitor_ctlr_work
);
7153 spin_unlock_irqrestore(&h
->lock
, flags
);
7155 hpsa_unregister_scsi(h
); /* unhook from SCSI subsystem */
7156 hpsa_shutdown(pdev
);
7158 iounmap(h
->transtable
);
7159 iounmap(h
->cfgtable
);
7160 hpsa_free_device_info(h
);
7161 hpsa_free_sg_chain_blocks(h
);
7162 pci_free_consistent(h
->pdev
,
7163 h
->nr_cmds
* sizeof(struct CommandList
),
7164 h
->cmd_pool
, h
->cmd_pool_dhandle
);
7165 pci_free_consistent(h
->pdev
,
7166 h
->nr_cmds
* sizeof(struct ErrorInfo
),
7167 h
->errinfo_pool
, h
->errinfo_pool_dhandle
);
7168 pci_free_consistent(h
->pdev
, h
->reply_pool_size
,
7169 h
->reply_pool
, h
->reply_pool_dhandle
);
7170 kfree(h
->cmd_pool_bits
);
7171 kfree(h
->blockFetchTable
);
7172 kfree(h
->ioaccel1_blockFetchTable
);
7173 kfree(h
->ioaccel2_blockFetchTable
);
7174 kfree(h
->hba_inquiry_data
);
7175 pci_disable_device(pdev
);
7176 pci_release_regions(pdev
);
7180 static int hpsa_suspend(__attribute__((unused
)) struct pci_dev
*pdev
,
7181 __attribute__((unused
)) pm_message_t state
)
7186 static int hpsa_resume(__attribute__((unused
)) struct pci_dev
*pdev
)
7191 static struct pci_driver hpsa_pci_driver
= {
7193 .probe
= hpsa_init_one
,
7194 .remove
= hpsa_remove_one
,
7195 .id_table
= hpsa_pci_device_id
, /* id_table */
7196 .shutdown
= hpsa_shutdown
,
7197 .suspend
= hpsa_suspend
,
7198 .resume
= hpsa_resume
,
7201 /* Fill in bucket_map[], given nsgs (the max number of
7202 * scatter gather elements supported) and bucket[],
7203 * which is an array of 8 integers. The bucket[] array
7204 * contains 8 different DMA transfer sizes (in 16
7205 * byte increments) which the controller uses to fetch
7206 * commands. This function fills in bucket_map[], which
7207 * maps a given number of scatter gather elements to one of
7208 * the 8 DMA transfer sizes. The point of it is to allow the
7209 * controller to only do as much DMA as needed to fetch the
7210 * command, with the DMA transfer size encoded in the lower
7211 * bits of the command address.
7213 static void calc_bucket_map(int bucket
[], int num_buckets
,
7214 int nsgs
, int min_blocks
, int *bucket_map
)
7218 /* Note, bucket_map must have nsgs+1 entries. */
7219 for (i
= 0; i
<= nsgs
; i
++) {
7220 /* Compute size of a command with i SG entries */
7221 size
= i
+ min_blocks
;
7222 b
= num_buckets
; /* Assume the biggest bucket */
7223 /* Find the bucket that is just big enough */
7224 for (j
= 0; j
< num_buckets
; j
++) {
7225 if (bucket
[j
] >= size
) {
7230 /* for a command with i SG entries, use bucket b. */
7235 static void hpsa_enter_performant_mode(struct ctlr_info
*h
, u32 trans_support
)
7238 unsigned long register_value
;
7239 unsigned long transMethod
= CFGTBL_Trans_Performant
|
7240 (trans_support
& CFGTBL_Trans_use_short_tags
) |
7241 CFGTBL_Trans_enable_directed_msix
|
7242 (trans_support
& (CFGTBL_Trans_io_accel1
|
7243 CFGTBL_Trans_io_accel2
));
7244 struct access_method access
= SA5_performant_access
;
7246 /* This is a bit complicated. There are 8 registers on
7247 * the controller which we write to to tell it 8 different
7248 * sizes of commands which there may be. It's a way of
7249 * reducing the DMA done to fetch each command. Encoded into
7250 * each command's tag are 3 bits which communicate to the controller
7251 * which of the eight sizes that command fits within. The size of
7252 * each command depends on how many scatter gather entries there are.
7253 * Each SG entry requires 16 bytes. The eight registers are programmed
7254 * with the number of 16-byte blocks a command of that size requires.
7255 * The smallest command possible requires 5 such 16 byte blocks.
7256 * the largest command possible requires SG_ENTRIES_IN_CMD + 4 16-byte
7257 * blocks. Note, this only extends to the SG entries contained
7258 * within the command block, and does not extend to chained blocks
7259 * of SG elements. bft[] contains the eight values we write to
7260 * the registers. They are not evenly distributed, but have more
7261 * sizes for small commands, and fewer sizes for larger commands.
7263 int bft
[8] = {5, 6, 8, 10, 12, 20, 28, SG_ENTRIES_IN_CMD
+ 4};
7264 #define MIN_IOACCEL2_BFT_ENTRY 5
7265 #define HPSA_IOACCEL2_HEADER_SZ 4
7266 int bft2
[16] = {MIN_IOACCEL2_BFT_ENTRY
, 6, 7, 8, 9, 10, 11, 12,
7267 13, 14, 15, 16, 17, 18, 19,
7268 HPSA_IOACCEL2_HEADER_SZ
+ IOACCEL2_MAXSGENTRIES
};
7269 BUILD_BUG_ON(ARRAY_SIZE(bft2
) != 16);
7270 BUILD_BUG_ON(ARRAY_SIZE(bft
) != 8);
7271 BUILD_BUG_ON(offsetof(struct io_accel2_cmd
, sg
) >
7272 16 * MIN_IOACCEL2_BFT_ENTRY
);
7273 BUILD_BUG_ON(sizeof(struct ioaccel2_sg_element
) != 16);
7274 BUILD_BUG_ON(28 > SG_ENTRIES_IN_CMD
+ 4);
7275 /* 5 = 1 s/g entry or 4k
7276 * 6 = 2 s/g entry or 8k
7277 * 8 = 4 s/g entry or 16k
7278 * 10 = 6 s/g entry or 24k
7281 /* Controller spec: zero out this buffer. */
7282 memset(h
->reply_pool
, 0, h
->reply_pool_size
);
7284 bft
[7] = SG_ENTRIES_IN_CMD
+ 4;
7285 calc_bucket_map(bft
, ARRAY_SIZE(bft
),
7286 SG_ENTRIES_IN_CMD
, 4, h
->blockFetchTable
);
7287 for (i
= 0; i
< 8; i
++)
7288 writel(bft
[i
], &h
->transtable
->BlockFetch
[i
]);
7290 /* size of controller ring buffer */
7291 writel(h
->max_commands
, &h
->transtable
->RepQSize
);
7292 writel(h
->nreply_queues
, &h
->transtable
->RepQCount
);
7293 writel(0, &h
->transtable
->RepQCtrAddrLow32
);
7294 writel(0, &h
->transtable
->RepQCtrAddrHigh32
);
7296 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7297 writel(0, &h
->transtable
->RepQAddr
[i
].upper
);
7298 writel(h
->reply_pool_dhandle
+
7299 (h
->max_commands
* sizeof(u64
) * i
),
7300 &h
->transtable
->RepQAddr
[i
].lower
);
7303 writel(0, &h
->cfgtable
->HostWrite
.command_pool_addr_hi
);
7304 writel(transMethod
, &(h
->cfgtable
->HostWrite
.TransportRequest
));
7306 * enable outbound interrupt coalescing in accelerator mode;
7308 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7309 access
= SA5_ioaccel_mode1_access
;
7310 writel(10, &h
->cfgtable
->HostWrite
.CoalIntDelay
);
7311 writel(4, &h
->cfgtable
->HostWrite
.CoalIntCount
);
7313 if (trans_support
& CFGTBL_Trans_io_accel2
) {
7314 access
= SA5_ioaccel_mode2_access
;
7315 writel(10, &h
->cfgtable
->HostWrite
.CoalIntDelay
);
7316 writel(4, &h
->cfgtable
->HostWrite
.CoalIntCount
);
7319 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
7320 hpsa_wait_for_mode_change_ack(h
);
7321 register_value
= readl(&(h
->cfgtable
->TransportActive
));
7322 if (!(register_value
& CFGTBL_Trans_Performant
)) {
7323 dev_warn(&h
->pdev
->dev
, "unable to get board into"
7324 " performant mode\n");
7327 /* Change the access methods to the performant access methods */
7329 h
->transMethod
= transMethod
;
7331 if (!((trans_support
& CFGTBL_Trans_io_accel1
) ||
7332 (trans_support
& CFGTBL_Trans_io_accel2
)))
7335 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7336 /* Set up I/O accelerator mode */
7337 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7338 writel(i
, h
->vaddr
+ IOACCEL_MODE1_REPLY_QUEUE_INDEX
);
7339 h
->reply_queue
[i
].current_entry
=
7340 readl(h
->vaddr
+ IOACCEL_MODE1_PRODUCER_INDEX
);
7342 bft
[7] = h
->ioaccel_maxsg
+ 8;
7343 calc_bucket_map(bft
, ARRAY_SIZE(bft
), h
->ioaccel_maxsg
, 8,
7344 h
->ioaccel1_blockFetchTable
);
7346 /* initialize all reply queue entries to unused */
7347 memset(h
->reply_pool
, (u8
) IOACCEL_MODE1_REPLY_UNUSED
,
7348 h
->reply_pool_size
);
7350 /* set all the constant fields in the accelerator command
7351 * frames once at init time to save CPU cycles later.
7353 for (i
= 0; i
< h
->nr_cmds
; i
++) {
7354 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[i
];
7356 cp
->function
= IOACCEL1_FUNCTION_SCSIIO
;
7357 cp
->err_info
= (u32
) (h
->errinfo_pool_dhandle
+
7358 (i
* sizeof(struct ErrorInfo
)));
7359 cp
->err_info_len
= sizeof(struct ErrorInfo
);
7360 cp
->sgl_offset
= IOACCEL1_SGLOFFSET
;
7361 cp
->host_context_flags
= IOACCEL1_HCFLAGS_CISS_FORMAT
;
7362 cp
->timeout_sec
= 0;
7364 cp
->Tag
.lower
= (i
<< DIRECT_LOOKUP_SHIFT
) |
7367 cp
->host_addr
.lower
=
7368 (u32
) (h
->ioaccel_cmd_pool_dhandle
+
7369 (i
* sizeof(struct io_accel1_cmd
)));
7370 cp
->host_addr
.upper
= 0;
7372 } else if (trans_support
& CFGTBL_Trans_io_accel2
) {
7373 u64 cfg_offset
, cfg_base_addr_index
;
7374 u32 bft2_offset
, cfg_base_addr
;
7377 rc
= hpsa_find_cfg_addrs(h
->pdev
, h
->vaddr
, &cfg_base_addr
,
7378 &cfg_base_addr_index
, &cfg_offset
);
7379 BUILD_BUG_ON(offsetof(struct io_accel2_cmd
, sg
) != 64);
7380 bft2
[15] = h
->ioaccel_maxsg
+ HPSA_IOACCEL2_HEADER_SZ
;
7381 calc_bucket_map(bft2
, ARRAY_SIZE(bft2
), h
->ioaccel_maxsg
,
7382 4, h
->ioaccel2_blockFetchTable
);
7383 bft2_offset
= readl(&h
->cfgtable
->io_accel_request_size_offset
);
7384 BUILD_BUG_ON(offsetof(struct CfgTable
,
7385 io_accel_request_size_offset
) != 0xb8);
7386 h
->ioaccel2_bft2_regs
=
7387 remap_pci_mem(pci_resource_start(h
->pdev
,
7388 cfg_base_addr_index
) +
7389 cfg_offset
+ bft2_offset
,
7391 sizeof(*h
->ioaccel2_bft2_regs
));
7392 for (i
= 0; i
< ARRAY_SIZE(bft2
); i
++)
7393 writel(bft2
[i
], &h
->ioaccel2_bft2_regs
[i
]);
7395 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
7396 hpsa_wait_for_mode_change_ack(h
);
7399 static int hpsa_alloc_ioaccel_cmd_and_bft(struct ctlr_info
*h
)
7402 readl(&(h
->cfgtable
->io_accel_max_embedded_sg_count
));
7403 if (h
->ioaccel_maxsg
> IOACCEL1_MAXSGENTRIES
)
7404 h
->ioaccel_maxsg
= IOACCEL1_MAXSGENTRIES
;
7406 /* Command structures must be aligned on a 128-byte boundary
7407 * because the 7 lower bits of the address are used by the
7410 #define IOACCEL1_COMMANDLIST_ALIGNMENT 128
7411 BUILD_BUG_ON(sizeof(struct io_accel1_cmd
) %
7412 IOACCEL1_COMMANDLIST_ALIGNMENT
);
7413 h
->ioaccel_cmd_pool
=
7414 pci_alloc_consistent(h
->pdev
,
7415 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
),
7416 &(h
->ioaccel_cmd_pool_dhandle
));
7418 h
->ioaccel1_blockFetchTable
=
7419 kmalloc(((h
->ioaccel_maxsg
+ 1) *
7420 sizeof(u32
)), GFP_KERNEL
);
7422 if ((h
->ioaccel_cmd_pool
== NULL
) ||
7423 (h
->ioaccel1_blockFetchTable
== NULL
))
7426 memset(h
->ioaccel_cmd_pool
, 0,
7427 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
));
7431 if (h
->ioaccel_cmd_pool
)
7432 pci_free_consistent(h
->pdev
,
7433 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
),
7434 h
->ioaccel_cmd_pool
, h
->ioaccel_cmd_pool_dhandle
);
7435 kfree(h
->ioaccel1_blockFetchTable
);
7439 static int ioaccel2_alloc_cmds_and_bft(struct ctlr_info
*h
)
7441 /* Allocate ioaccel2 mode command blocks and block fetch table */
7444 readl(&(h
->cfgtable
->io_accel_max_embedded_sg_count
));
7445 if (h
->ioaccel_maxsg
> IOACCEL2_MAXSGENTRIES
)
7446 h
->ioaccel_maxsg
= IOACCEL2_MAXSGENTRIES
;
7448 #define IOACCEL2_COMMANDLIST_ALIGNMENT 128
7449 BUILD_BUG_ON(sizeof(struct io_accel2_cmd
) %
7450 IOACCEL2_COMMANDLIST_ALIGNMENT
);
7451 h
->ioaccel2_cmd_pool
=
7452 pci_alloc_consistent(h
->pdev
,
7453 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
7454 &(h
->ioaccel2_cmd_pool_dhandle
));
7456 h
->ioaccel2_blockFetchTable
=
7457 kmalloc(((h
->ioaccel_maxsg
+ 1) *
7458 sizeof(u32
)), GFP_KERNEL
);
7460 if ((h
->ioaccel2_cmd_pool
== NULL
) ||
7461 (h
->ioaccel2_blockFetchTable
== NULL
))
7464 memset(h
->ioaccel2_cmd_pool
, 0,
7465 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
));
7469 if (h
->ioaccel2_cmd_pool
)
7470 pci_free_consistent(h
->pdev
,
7471 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
7472 h
->ioaccel2_cmd_pool
, h
->ioaccel2_cmd_pool_dhandle
);
7473 kfree(h
->ioaccel2_blockFetchTable
);
7477 static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info
*h
)
7480 unsigned long transMethod
= CFGTBL_Trans_Performant
|
7481 CFGTBL_Trans_use_short_tags
;
7484 if (hpsa_simple_mode
)
7487 trans_support
= readl(&(h
->cfgtable
->TransportSupport
));
7488 if (!(trans_support
& PERFORMANT_MODE
))
7491 /* Check for I/O accelerator mode support */
7492 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7493 transMethod
|= CFGTBL_Trans_io_accel1
|
7494 CFGTBL_Trans_enable_directed_msix
;
7495 if (hpsa_alloc_ioaccel_cmd_and_bft(h
))
7498 if (trans_support
& CFGTBL_Trans_io_accel2
) {
7499 transMethod
|= CFGTBL_Trans_io_accel2
|
7500 CFGTBL_Trans_enable_directed_msix
;
7501 if (ioaccel2_alloc_cmds_and_bft(h
))
7506 /* TODO, check that this next line h->nreply_queues is correct */
7507 h
->nreply_queues
= h
->msix_vector
> 0 ? h
->msix_vector
: 1;
7508 hpsa_get_max_perf_mode_cmds(h
);
7509 /* Performant mode ring buffer and supporting data structures */
7510 h
->reply_pool_size
= h
->max_commands
* sizeof(u64
) * h
->nreply_queues
;
7511 h
->reply_pool
= pci_alloc_consistent(h
->pdev
, h
->reply_pool_size
,
7512 &(h
->reply_pool_dhandle
));
7514 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7515 h
->reply_queue
[i
].head
= &h
->reply_pool
[h
->max_commands
* i
];
7516 h
->reply_queue
[i
].size
= h
->max_commands
;
7517 h
->reply_queue
[i
].wraparound
= 1; /* spec: init to 1 */
7518 h
->reply_queue
[i
].current_entry
= 0;
7521 /* Need a block fetch table for performant mode */
7522 h
->blockFetchTable
= kmalloc(((SG_ENTRIES_IN_CMD
+ 1) *
7523 sizeof(u32
)), GFP_KERNEL
);
7525 if ((h
->reply_pool
== NULL
)
7526 || (h
->blockFetchTable
== NULL
))
7529 hpsa_enter_performant_mode(h
, trans_support
);
7534 pci_free_consistent(h
->pdev
, h
->reply_pool_size
,
7535 h
->reply_pool
, h
->reply_pool_dhandle
);
7536 kfree(h
->blockFetchTable
);
7539 static int is_accelerated_cmd(struct CommandList
*c
)
7541 return c
->cmd_type
== CMD_IOACCEL1
|| c
->cmd_type
== CMD_IOACCEL2
;
7544 static void hpsa_drain_accel_commands(struct ctlr_info
*h
)
7546 struct CommandList
*c
= NULL
;
7547 unsigned long flags
;
7550 do { /* wait for all outstanding commands to drain out */
7552 spin_lock_irqsave(&h
->lock
, flags
);
7553 list_for_each_entry(c
, &h
->cmpQ
, list
)
7554 accel_cmds_out
+= is_accelerated_cmd(c
);
7555 list_for_each_entry(c
, &h
->reqQ
, list
)
7556 accel_cmds_out
+= is_accelerated_cmd(c
);
7557 spin_unlock_irqrestore(&h
->lock
, flags
);
7558 if (accel_cmds_out
<= 0)
7565 * This is it. Register the PCI driver information for the cards we control
7566 * the OS will call our registered routines when it finds one of our cards.
7568 static int __init
hpsa_init(void)
7570 return pci_register_driver(&hpsa_pci_driver
);
7573 static void __exit
hpsa_cleanup(void)
7575 pci_unregister_driver(&hpsa_pci_driver
);
7578 static void __attribute__((unused
)) verify_offsets(void)
7580 #define VERIFY_OFFSET(member, offset) \
7581 BUILD_BUG_ON(offsetof(struct raid_map_data, member) != offset)
7583 VERIFY_OFFSET(structure_size
, 0);
7584 VERIFY_OFFSET(volume_blk_size
, 4);
7585 VERIFY_OFFSET(volume_blk_cnt
, 8);
7586 VERIFY_OFFSET(phys_blk_shift
, 16);
7587 VERIFY_OFFSET(parity_rotation_shift
, 17);
7588 VERIFY_OFFSET(strip_size
, 18);
7589 VERIFY_OFFSET(disk_starting_blk
, 20);
7590 VERIFY_OFFSET(disk_blk_cnt
, 28);
7591 VERIFY_OFFSET(data_disks_per_row
, 36);
7592 VERIFY_OFFSET(metadata_disks_per_row
, 38);
7593 VERIFY_OFFSET(row_cnt
, 40);
7594 VERIFY_OFFSET(layout_map_count
, 42);
7595 VERIFY_OFFSET(flags
, 44);
7596 VERIFY_OFFSET(dekindex
, 46);
7597 /* VERIFY_OFFSET(reserved, 48 */
7598 VERIFY_OFFSET(data
, 64);
7600 #undef VERIFY_OFFSET
7602 #define VERIFY_OFFSET(member, offset) \
7603 BUILD_BUG_ON(offsetof(struct io_accel2_cmd, member) != offset)
7605 VERIFY_OFFSET(IU_type
, 0);
7606 VERIFY_OFFSET(direction
, 1);
7607 VERIFY_OFFSET(reply_queue
, 2);
7608 /* VERIFY_OFFSET(reserved1, 3); */
7609 VERIFY_OFFSET(scsi_nexus
, 4);
7610 VERIFY_OFFSET(Tag
, 8);
7611 VERIFY_OFFSET(cdb
, 16);
7612 VERIFY_OFFSET(cciss_lun
, 32);
7613 VERIFY_OFFSET(data_len
, 40);
7614 VERIFY_OFFSET(cmd_priority_task_attr
, 44);
7615 VERIFY_OFFSET(sg_count
, 45);
7616 /* VERIFY_OFFSET(reserved3 */
7617 VERIFY_OFFSET(err_ptr
, 48);
7618 VERIFY_OFFSET(err_len
, 56);
7619 /* VERIFY_OFFSET(reserved4 */
7620 VERIFY_OFFSET(sg
, 64);
7622 #undef VERIFY_OFFSET
7624 #define VERIFY_OFFSET(member, offset) \
7625 BUILD_BUG_ON(offsetof(struct io_accel1_cmd, member) != offset)
7627 VERIFY_OFFSET(dev_handle
, 0x00);
7628 VERIFY_OFFSET(reserved1
, 0x02);
7629 VERIFY_OFFSET(function
, 0x03);
7630 VERIFY_OFFSET(reserved2
, 0x04);
7631 VERIFY_OFFSET(err_info
, 0x0C);
7632 VERIFY_OFFSET(reserved3
, 0x10);
7633 VERIFY_OFFSET(err_info_len
, 0x12);
7634 VERIFY_OFFSET(reserved4
, 0x13);
7635 VERIFY_OFFSET(sgl_offset
, 0x14);
7636 VERIFY_OFFSET(reserved5
, 0x15);
7637 VERIFY_OFFSET(transfer_len
, 0x1C);
7638 VERIFY_OFFSET(reserved6
, 0x20);
7639 VERIFY_OFFSET(io_flags
, 0x24);
7640 VERIFY_OFFSET(reserved7
, 0x26);
7641 VERIFY_OFFSET(LUN
, 0x34);
7642 VERIFY_OFFSET(control
, 0x3C);
7643 VERIFY_OFFSET(CDB
, 0x40);
7644 VERIFY_OFFSET(reserved8
, 0x50);
7645 VERIFY_OFFSET(host_context_flags
, 0x60);
7646 VERIFY_OFFSET(timeout_sec
, 0x62);
7647 VERIFY_OFFSET(ReplyQueue
, 0x64);
7648 VERIFY_OFFSET(reserved9
, 0x65);
7649 VERIFY_OFFSET(Tag
, 0x68);
7650 VERIFY_OFFSET(host_addr
, 0x70);
7651 VERIFY_OFFSET(CISS_LUN
, 0x78);
7652 VERIFY_OFFSET(SG
, 0x78 + 8);
7653 #undef VERIFY_OFFSET
7656 module_init(hpsa_init
);
7657 module_exit(hpsa_cleanup
);