2 * Disk Array driver for HP Smart Array SAS controllers
3 * Copyright 2000, 2014 Hewlett-Packard Development Company, L.P.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
12 * NON INFRINGEMENT. See the GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 * Questions/Comments/Bugfixes to iss_storagedev@hp.com
22 #include <linux/module.h>
23 #include <linux/interrupt.h>
24 #include <linux/types.h>
25 #include <linux/pci.h>
26 #include <linux/pci-aspm.h>
27 #include <linux/kernel.h>
28 #include <linux/slab.h>
29 #include <linux/delay.h>
31 #include <linux/timer.h>
32 #include <linux/init.h>
33 #include <linux/spinlock.h>
34 #include <linux/compat.h>
35 #include <linux/blktrace_api.h>
36 #include <linux/uaccess.h>
38 #include <linux/dma-mapping.h>
39 #include <linux/completion.h>
40 #include <linux/moduleparam.h>
41 #include <scsi/scsi.h>
42 #include <scsi/scsi_cmnd.h>
43 #include <scsi/scsi_device.h>
44 #include <scsi/scsi_host.h>
45 #include <scsi/scsi_tcq.h>
46 #include <linux/cciss_ioctl.h>
47 #include <linux/string.h>
48 #include <linux/bitmap.h>
49 #include <linux/atomic.h>
50 #include <linux/jiffies.h>
51 #include <linux/percpu.h>
52 #include <asm/div64.h>
56 /* HPSA_DRIVER_VERSION must be 3 byte values (0-255) separated by '.' */
57 #define HPSA_DRIVER_VERSION "3.4.4-1"
58 #define DRIVER_NAME "HP HPSA Driver (v " HPSA_DRIVER_VERSION ")"
61 /* How long to wait (in milliseconds) for board to go into simple mode */
62 #define MAX_CONFIG_WAIT 30000
63 #define MAX_IOCTL_CONFIG_WAIT 1000
65 /*define how many times we will try a command because of bus resets */
66 #define MAX_CMD_RETRIES 3
68 /* Embedded module documentation macros - see modules.h */
69 MODULE_AUTHOR("Hewlett-Packard Company");
70 MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \
72 MODULE_SUPPORTED_DEVICE("HP Smart Array Controllers");
73 MODULE_VERSION(HPSA_DRIVER_VERSION
);
74 MODULE_LICENSE("GPL");
76 static int hpsa_allow_any
;
77 module_param(hpsa_allow_any
, int, S_IRUGO
|S_IWUSR
);
78 MODULE_PARM_DESC(hpsa_allow_any
,
79 "Allow hpsa driver to access unknown HP Smart Array hardware");
80 static int hpsa_simple_mode
;
81 module_param(hpsa_simple_mode
, int, S_IRUGO
|S_IWUSR
);
82 MODULE_PARM_DESC(hpsa_simple_mode
,
83 "Use 'simple mode' rather than 'performant mode'");
85 /* define the PCI info for the cards we can control */
86 static const struct pci_device_id hpsa_pci_device_id
[] = {
87 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3241},
88 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3243},
89 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3245},
90 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3247},
91 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3249},
92 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x324A},
93 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x324B},
94 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSE
, 0x103C, 0x3233},
95 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3350},
96 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3351},
97 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3352},
98 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3353},
99 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3354},
100 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3355},
101 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSF
, 0x103C, 0x3356},
102 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1921},
103 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1922},
104 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1923},
105 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1924},
106 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1925},
107 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1926},
108 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1928},
109 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSH
, 0x103C, 0x1929},
110 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BD},
111 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BE},
112 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21BF},
113 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C0},
114 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C1},
115 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C2},
116 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C3},
117 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C4},
118 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C5},
119 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C6},
120 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C7},
121 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C8},
122 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21C9},
123 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CA},
124 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CB},
125 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CC},
126 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CD},
127 {PCI_VENDOR_ID_HP
, PCI_DEVICE_ID_HP_CISSI
, 0x103C, 0x21CE},
128 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0076},
129 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0087},
130 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x007D},
131 {PCI_VENDOR_ID_HP_3PAR
, 0x0075, 0x1590, 0x0088},
132 {PCI_VENDOR_ID_HP
, 0x333f, 0x103c, 0x333f},
133 {PCI_VENDOR_ID_HP
, PCI_ANY_ID
, PCI_ANY_ID
, PCI_ANY_ID
,
134 PCI_CLASS_STORAGE_RAID
<< 8, 0xffff << 8, 0},
138 MODULE_DEVICE_TABLE(pci
, hpsa_pci_device_id
);
140 /* board_id = Subsystem Device ID & Vendor ID
141 * product = Marketing Name for the board
142 * access = Address of the struct of function pointers
144 static struct board_type products
[] = {
145 {0x3241103C, "Smart Array P212", &SA5_access
},
146 {0x3243103C, "Smart Array P410", &SA5_access
},
147 {0x3245103C, "Smart Array P410i", &SA5_access
},
148 {0x3247103C, "Smart Array P411", &SA5_access
},
149 {0x3249103C, "Smart Array P812", &SA5_access
},
150 {0x324A103C, "Smart Array P712m", &SA5_access
},
151 {0x324B103C, "Smart Array P711m", &SA5_access
},
152 {0x3350103C, "Smart Array P222", &SA5_access
},
153 {0x3351103C, "Smart Array P420", &SA5_access
},
154 {0x3352103C, "Smart Array P421", &SA5_access
},
155 {0x3353103C, "Smart Array P822", &SA5_access
},
156 {0x3354103C, "Smart Array P420i", &SA5_access
},
157 {0x3355103C, "Smart Array P220i", &SA5_access
},
158 {0x3356103C, "Smart Array P721m", &SA5_access
},
159 {0x1921103C, "Smart Array P830i", &SA5_access
},
160 {0x1922103C, "Smart Array P430", &SA5_access
},
161 {0x1923103C, "Smart Array P431", &SA5_access
},
162 {0x1924103C, "Smart Array P830", &SA5_access
},
163 {0x1926103C, "Smart Array P731m", &SA5_access
},
164 {0x1928103C, "Smart Array P230i", &SA5_access
},
165 {0x1929103C, "Smart Array P530", &SA5_access
},
166 {0x21BD103C, "Smart Array", &SA5_access
},
167 {0x21BE103C, "Smart Array", &SA5_access
},
168 {0x21BF103C, "Smart Array", &SA5_access
},
169 {0x21C0103C, "Smart Array", &SA5_access
},
170 {0x21C1103C, "Smart Array", &SA5_access
},
171 {0x21C2103C, "Smart Array", &SA5_access
},
172 {0x21C3103C, "Smart Array", &SA5_access
},
173 {0x21C4103C, "Smart Array", &SA5_access
},
174 {0x21C5103C, "Smart Array", &SA5_access
},
175 {0x21C6103C, "Smart Array", &SA5_access
},
176 {0x21C7103C, "Smart Array", &SA5_access
},
177 {0x21C8103C, "Smart Array", &SA5_access
},
178 {0x21C9103C, "Smart Array", &SA5_access
},
179 {0x21CA103C, "Smart Array", &SA5_access
},
180 {0x21CB103C, "Smart Array", &SA5_access
},
181 {0x21CC103C, "Smart Array", &SA5_access
},
182 {0x21CD103C, "Smart Array", &SA5_access
},
183 {0x21CE103C, "Smart Array", &SA5_access
},
184 {0x00761590, "HP Storage P1224 Array Controller", &SA5_access
},
185 {0x00871590, "HP Storage P1224e Array Controller", &SA5_access
},
186 {0x007D1590, "HP Storage P1228 Array Controller", &SA5_access
},
187 {0x00881590, "HP Storage P1228e Array Controller", &SA5_access
},
188 {0x333f103c, "HP StorageWorks 1210m Array Controller", &SA5_access
},
189 {0xFFFF103C, "Unknown Smart Array", &SA5_access
},
192 static int number_of_controllers
;
194 static irqreturn_t
do_hpsa_intr_intx(int irq
, void *dev_id
);
195 static irqreturn_t
do_hpsa_intr_msi(int irq
, void *dev_id
);
196 static int hpsa_ioctl(struct scsi_device
*dev
, int cmd
, void *arg
);
197 static void lock_and_start_io(struct ctlr_info
*h
);
198 static void start_io(struct ctlr_info
*h
, unsigned long *flags
);
201 static int hpsa_compat_ioctl(struct scsi_device
*dev
, int cmd
, void *arg
);
204 static void cmd_free(struct ctlr_info
*h
, struct CommandList
*c
);
205 static void cmd_special_free(struct ctlr_info
*h
, struct CommandList
*c
);
206 static struct CommandList
*cmd_alloc(struct ctlr_info
*h
);
207 static struct CommandList
*cmd_special_alloc(struct ctlr_info
*h
);
208 static int fill_cmd(struct CommandList
*c
, u8 cmd
, struct ctlr_info
*h
,
209 void *buff
, size_t size
, u16 page_code
, unsigned char *scsi3addr
,
211 #define VPD_PAGE (1 << 8)
213 static int hpsa_scsi_queue_command(struct Scsi_Host
*h
, struct scsi_cmnd
*cmd
);
214 static void hpsa_scan_start(struct Scsi_Host
*);
215 static int hpsa_scan_finished(struct Scsi_Host
*sh
,
216 unsigned long elapsed_time
);
217 static int hpsa_change_queue_depth(struct scsi_device
*sdev
,
218 int qdepth
, int reason
);
220 static int hpsa_eh_device_reset_handler(struct scsi_cmnd
*scsicmd
);
221 static int hpsa_eh_abort_handler(struct scsi_cmnd
*scsicmd
);
222 static int hpsa_slave_alloc(struct scsi_device
*sdev
);
223 static void hpsa_slave_destroy(struct scsi_device
*sdev
);
225 static void hpsa_update_scsi_devices(struct ctlr_info
*h
, int hostno
);
226 static int check_for_unit_attention(struct ctlr_info
*h
,
227 struct CommandList
*c
);
228 static void check_ioctl_unit_attention(struct ctlr_info
*h
,
229 struct CommandList
*c
);
230 /* performant mode helper functions */
231 static void calc_bucket_map(int *bucket
, int num_buckets
,
232 int nsgs
, int min_blocks
, int *bucket_map
);
233 static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info
*h
);
234 static inline u32
next_command(struct ctlr_info
*h
, u8 q
);
235 static int hpsa_find_cfg_addrs(struct pci_dev
*pdev
, void __iomem
*vaddr
,
236 u32
*cfg_base_addr
, u64
*cfg_base_addr_index
,
238 static int hpsa_pci_find_memory_BAR(struct pci_dev
*pdev
,
239 unsigned long *memory_bar
);
240 static int hpsa_lookup_board_id(struct pci_dev
*pdev
, u32
*board_id
);
241 static int hpsa_wait_for_board_state(struct pci_dev
*pdev
, void __iomem
*vaddr
,
243 static inline void finish_cmd(struct CommandList
*c
);
244 static void hpsa_wait_for_mode_change_ack(struct ctlr_info
*h
);
245 #define BOARD_NOT_READY 0
246 #define BOARD_READY 1
247 static void hpsa_drain_accel_commands(struct ctlr_info
*h
);
248 static void hpsa_flush_cache(struct ctlr_info
*h
);
249 static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info
*h
,
250 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
253 static inline struct ctlr_info
*sdev_to_hba(struct scsi_device
*sdev
)
255 unsigned long *priv
= shost_priv(sdev
->host
);
256 return (struct ctlr_info
*) *priv
;
259 static inline struct ctlr_info
*shost_to_hba(struct Scsi_Host
*sh
)
261 unsigned long *priv
= shost_priv(sh
);
262 return (struct ctlr_info
*) *priv
;
265 static int check_for_unit_attention(struct ctlr_info
*h
,
266 struct CommandList
*c
)
268 if (c
->err_info
->SenseInfo
[2] != UNIT_ATTENTION
)
271 switch (c
->err_info
->SenseInfo
[12]) {
273 dev_warn(&h
->pdev
->dev
, HPSA
"%d: a state change "
274 "detected, command retried\n", h
->ctlr
);
277 dev_warn(&h
->pdev
->dev
, HPSA
"%d: LUN failure "
278 "detected, action required\n", h
->ctlr
);
280 case REPORT_LUNS_CHANGED
:
281 dev_warn(&h
->pdev
->dev
, HPSA
"%d: report LUN data "
282 "changed, action required\n", h
->ctlr
);
284 * Note: this REPORT_LUNS_CHANGED condition only occurs on the external
285 * target (array) devices.
289 dev_warn(&h
->pdev
->dev
, HPSA
"%d: a power on "
290 "or device reset detected\n", h
->ctlr
);
292 case UNIT_ATTENTION_CLEARED
:
293 dev_warn(&h
->pdev
->dev
, HPSA
"%d: unit attention "
294 "cleared by another initiator\n", h
->ctlr
);
297 dev_warn(&h
->pdev
->dev
, HPSA
"%d: unknown "
298 "unit attention detected\n", h
->ctlr
);
304 static int check_for_busy(struct ctlr_info
*h
, struct CommandList
*c
)
306 if (c
->err_info
->CommandStatus
!= CMD_TARGET_STATUS
||
307 (c
->err_info
->ScsiStatus
!= SAM_STAT_BUSY
&&
308 c
->err_info
->ScsiStatus
!= SAM_STAT_TASK_SET_FULL
))
310 dev_warn(&h
->pdev
->dev
, HPSA
"device busy");
314 static ssize_t
host_store_hp_ssd_smart_path_status(struct device
*dev
,
315 struct device_attribute
*attr
,
316 const char *buf
, size_t count
)
320 struct Scsi_Host
*shost
= class_to_shost(dev
);
323 if (!capable(CAP_SYS_ADMIN
) || !capable(CAP_SYS_RAWIO
))
325 len
= count
> sizeof(tmpbuf
) - 1 ? sizeof(tmpbuf
) - 1 : count
;
326 strncpy(tmpbuf
, buf
, len
);
328 if (sscanf(tmpbuf
, "%d", &status
) != 1)
330 h
= shost_to_hba(shost
);
331 h
->acciopath_status
= !!status
;
332 dev_warn(&h
->pdev
->dev
,
333 "hpsa: HP SSD Smart Path %s via sysfs update.\n",
334 h
->acciopath_status
? "enabled" : "disabled");
338 static ssize_t
host_store_raid_offload_debug(struct device
*dev
,
339 struct device_attribute
*attr
,
340 const char *buf
, size_t count
)
342 int debug_level
, len
;
344 struct Scsi_Host
*shost
= class_to_shost(dev
);
347 if (!capable(CAP_SYS_ADMIN
) || !capable(CAP_SYS_RAWIO
))
349 len
= count
> sizeof(tmpbuf
) - 1 ? sizeof(tmpbuf
) - 1 : count
;
350 strncpy(tmpbuf
, buf
, len
);
352 if (sscanf(tmpbuf
, "%d", &debug_level
) != 1)
356 h
= shost_to_hba(shost
);
357 h
->raid_offload_debug
= debug_level
;
358 dev_warn(&h
->pdev
->dev
, "hpsa: Set raid_offload_debug level = %d\n",
359 h
->raid_offload_debug
);
363 static ssize_t
host_store_rescan(struct device
*dev
,
364 struct device_attribute
*attr
,
365 const char *buf
, size_t count
)
368 struct Scsi_Host
*shost
= class_to_shost(dev
);
369 h
= shost_to_hba(shost
);
370 hpsa_scan_start(h
->scsi_host
);
374 static ssize_t
host_show_firmware_revision(struct device
*dev
,
375 struct device_attribute
*attr
, char *buf
)
378 struct Scsi_Host
*shost
= class_to_shost(dev
);
379 unsigned char *fwrev
;
381 h
= shost_to_hba(shost
);
382 if (!h
->hba_inquiry_data
)
384 fwrev
= &h
->hba_inquiry_data
[32];
385 return snprintf(buf
, 20, "%c%c%c%c\n",
386 fwrev
[0], fwrev
[1], fwrev
[2], fwrev
[3]);
389 static ssize_t
host_show_commands_outstanding(struct device
*dev
,
390 struct device_attribute
*attr
, char *buf
)
392 struct Scsi_Host
*shost
= class_to_shost(dev
);
393 struct ctlr_info
*h
= shost_to_hba(shost
);
395 return snprintf(buf
, 20, "%d\n", h
->commands_outstanding
);
398 static ssize_t
host_show_transport_mode(struct device
*dev
,
399 struct device_attribute
*attr
, char *buf
)
402 struct Scsi_Host
*shost
= class_to_shost(dev
);
404 h
= shost_to_hba(shost
);
405 return snprintf(buf
, 20, "%s\n",
406 h
->transMethod
& CFGTBL_Trans_Performant
?
407 "performant" : "simple");
410 static ssize_t
host_show_hp_ssd_smart_path_status(struct device
*dev
,
411 struct device_attribute
*attr
, char *buf
)
414 struct Scsi_Host
*shost
= class_to_shost(dev
);
416 h
= shost_to_hba(shost
);
417 return snprintf(buf
, 30, "HP SSD Smart Path %s\n",
418 (h
->acciopath_status
== 1) ? "enabled" : "disabled");
421 /* List of controllers which cannot be hard reset on kexec with reset_devices */
422 static u32 unresettable_controller
[] = {
423 0x324a103C, /* Smart Array P712m */
424 0x324b103C, /* SmartArray P711m */
425 0x3223103C, /* Smart Array P800 */
426 0x3234103C, /* Smart Array P400 */
427 0x3235103C, /* Smart Array P400i */
428 0x3211103C, /* Smart Array E200i */
429 0x3212103C, /* Smart Array E200 */
430 0x3213103C, /* Smart Array E200i */
431 0x3214103C, /* Smart Array E200i */
432 0x3215103C, /* Smart Array E200i */
433 0x3237103C, /* Smart Array E500 */
434 0x323D103C, /* Smart Array P700m */
435 0x40800E11, /* Smart Array 5i */
436 0x409C0E11, /* Smart Array 6400 */
437 0x409D0E11, /* Smart Array 6400 EM */
438 0x40700E11, /* Smart Array 5300 */
439 0x40820E11, /* Smart Array 532 */
440 0x40830E11, /* Smart Array 5312 */
441 0x409A0E11, /* Smart Array 641 */
442 0x409B0E11, /* Smart Array 642 */
443 0x40910E11, /* Smart Array 6i */
446 /* List of controllers which cannot even be soft reset */
447 static u32 soft_unresettable_controller
[] = {
448 0x40800E11, /* Smart Array 5i */
449 0x40700E11, /* Smart Array 5300 */
450 0x40820E11, /* Smart Array 532 */
451 0x40830E11, /* Smart Array 5312 */
452 0x409A0E11, /* Smart Array 641 */
453 0x409B0E11, /* Smart Array 642 */
454 0x40910E11, /* Smart Array 6i */
455 /* Exclude 640x boards. These are two pci devices in one slot
456 * which share a battery backed cache module. One controls the
457 * cache, the other accesses the cache through the one that controls
458 * it. If we reset the one controlling the cache, the other will
459 * likely not be happy. Just forbid resetting this conjoined mess.
460 * The 640x isn't really supported by hpsa anyway.
462 0x409C0E11, /* Smart Array 6400 */
463 0x409D0E11, /* Smart Array 6400 EM */
466 static int ctlr_is_hard_resettable(u32 board_id
)
470 for (i
= 0; i
< ARRAY_SIZE(unresettable_controller
); i
++)
471 if (unresettable_controller
[i
] == board_id
)
476 static int ctlr_is_soft_resettable(u32 board_id
)
480 for (i
= 0; i
< ARRAY_SIZE(soft_unresettable_controller
); i
++)
481 if (soft_unresettable_controller
[i
] == board_id
)
486 static int ctlr_is_resettable(u32 board_id
)
488 return ctlr_is_hard_resettable(board_id
) ||
489 ctlr_is_soft_resettable(board_id
);
492 static ssize_t
host_show_resettable(struct device
*dev
,
493 struct device_attribute
*attr
, char *buf
)
496 struct Scsi_Host
*shost
= class_to_shost(dev
);
498 h
= shost_to_hba(shost
);
499 return snprintf(buf
, 20, "%d\n", ctlr_is_resettable(h
->board_id
));
502 static inline int is_logical_dev_addr_mode(unsigned char scsi3addr
[])
504 return (scsi3addr
[3] & 0xC0) == 0x40;
507 static const char *raid_label
[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
510 #define HPSA_RAID_0 0
511 #define HPSA_RAID_4 1
512 #define HPSA_RAID_1 2 /* also used for RAID 10 */
513 #define HPSA_RAID_5 3 /* also used for RAID 50 */
514 #define HPSA_RAID_51 4
515 #define HPSA_RAID_6 5 /* also used for RAID 60 */
516 #define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */
517 #define RAID_UNKNOWN (ARRAY_SIZE(raid_label) - 1)
519 static ssize_t
raid_level_show(struct device
*dev
,
520 struct device_attribute
*attr
, char *buf
)
523 unsigned char rlevel
;
525 struct scsi_device
*sdev
;
526 struct hpsa_scsi_dev_t
*hdev
;
529 sdev
= to_scsi_device(dev
);
530 h
= sdev_to_hba(sdev
);
531 spin_lock_irqsave(&h
->lock
, flags
);
532 hdev
= sdev
->hostdata
;
534 spin_unlock_irqrestore(&h
->lock
, flags
);
538 /* Is this even a logical drive? */
539 if (!is_logical_dev_addr_mode(hdev
->scsi3addr
)) {
540 spin_unlock_irqrestore(&h
->lock
, flags
);
541 l
= snprintf(buf
, PAGE_SIZE
, "N/A\n");
545 rlevel
= hdev
->raid_level
;
546 spin_unlock_irqrestore(&h
->lock
, flags
);
547 if (rlevel
> RAID_UNKNOWN
)
548 rlevel
= RAID_UNKNOWN
;
549 l
= snprintf(buf
, PAGE_SIZE
, "RAID %s\n", raid_label
[rlevel
]);
553 static ssize_t
lunid_show(struct device
*dev
,
554 struct device_attribute
*attr
, char *buf
)
557 struct scsi_device
*sdev
;
558 struct hpsa_scsi_dev_t
*hdev
;
560 unsigned char lunid
[8];
562 sdev
= to_scsi_device(dev
);
563 h
= sdev_to_hba(sdev
);
564 spin_lock_irqsave(&h
->lock
, flags
);
565 hdev
= sdev
->hostdata
;
567 spin_unlock_irqrestore(&h
->lock
, flags
);
570 memcpy(lunid
, hdev
->scsi3addr
, sizeof(lunid
));
571 spin_unlock_irqrestore(&h
->lock
, flags
);
572 return snprintf(buf
, 20, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
573 lunid
[0], lunid
[1], lunid
[2], lunid
[3],
574 lunid
[4], lunid
[5], lunid
[6], lunid
[7]);
577 static ssize_t
unique_id_show(struct device
*dev
,
578 struct device_attribute
*attr
, char *buf
)
581 struct scsi_device
*sdev
;
582 struct hpsa_scsi_dev_t
*hdev
;
584 unsigned char sn
[16];
586 sdev
= to_scsi_device(dev
);
587 h
= sdev_to_hba(sdev
);
588 spin_lock_irqsave(&h
->lock
, flags
);
589 hdev
= sdev
->hostdata
;
591 spin_unlock_irqrestore(&h
->lock
, flags
);
594 memcpy(sn
, hdev
->device_id
, sizeof(sn
));
595 spin_unlock_irqrestore(&h
->lock
, flags
);
596 return snprintf(buf
, 16 * 2 + 2,
597 "%02X%02X%02X%02X%02X%02X%02X%02X"
598 "%02X%02X%02X%02X%02X%02X%02X%02X\n",
599 sn
[0], sn
[1], sn
[2], sn
[3],
600 sn
[4], sn
[5], sn
[6], sn
[7],
601 sn
[8], sn
[9], sn
[10], sn
[11],
602 sn
[12], sn
[13], sn
[14], sn
[15]);
605 static ssize_t
host_show_hp_ssd_smart_path_enabled(struct device
*dev
,
606 struct device_attribute
*attr
, char *buf
)
609 struct scsi_device
*sdev
;
610 struct hpsa_scsi_dev_t
*hdev
;
614 sdev
= to_scsi_device(dev
);
615 h
= sdev_to_hba(sdev
);
616 spin_lock_irqsave(&h
->lock
, flags
);
617 hdev
= sdev
->hostdata
;
619 spin_unlock_irqrestore(&h
->lock
, flags
);
622 offload_enabled
= hdev
->offload_enabled
;
623 spin_unlock_irqrestore(&h
->lock
, flags
);
624 return snprintf(buf
, 20, "%d\n", offload_enabled
);
627 static DEVICE_ATTR(raid_level
, S_IRUGO
, raid_level_show
, NULL
);
628 static DEVICE_ATTR(lunid
, S_IRUGO
, lunid_show
, NULL
);
629 static DEVICE_ATTR(unique_id
, S_IRUGO
, unique_id_show
, NULL
);
630 static DEVICE_ATTR(rescan
, S_IWUSR
, NULL
, host_store_rescan
);
631 static DEVICE_ATTR(hp_ssd_smart_path_enabled
, S_IRUGO
,
632 host_show_hp_ssd_smart_path_enabled
, NULL
);
633 static DEVICE_ATTR(hp_ssd_smart_path_status
, S_IWUSR
|S_IRUGO
|S_IROTH
,
634 host_show_hp_ssd_smart_path_status
,
635 host_store_hp_ssd_smart_path_status
);
636 static DEVICE_ATTR(raid_offload_debug
, S_IWUSR
, NULL
,
637 host_store_raid_offload_debug
);
638 static DEVICE_ATTR(firmware_revision
, S_IRUGO
,
639 host_show_firmware_revision
, NULL
);
640 static DEVICE_ATTR(commands_outstanding
, S_IRUGO
,
641 host_show_commands_outstanding
, NULL
);
642 static DEVICE_ATTR(transport_mode
, S_IRUGO
,
643 host_show_transport_mode
, NULL
);
644 static DEVICE_ATTR(resettable
, S_IRUGO
,
645 host_show_resettable
, NULL
);
647 static struct device_attribute
*hpsa_sdev_attrs
[] = {
648 &dev_attr_raid_level
,
651 &dev_attr_hp_ssd_smart_path_enabled
,
655 static struct device_attribute
*hpsa_shost_attrs
[] = {
657 &dev_attr_firmware_revision
,
658 &dev_attr_commands_outstanding
,
659 &dev_attr_transport_mode
,
660 &dev_attr_resettable
,
661 &dev_attr_hp_ssd_smart_path_status
,
662 &dev_attr_raid_offload_debug
,
666 static struct scsi_host_template hpsa_driver_template
= {
667 .module
= THIS_MODULE
,
670 .queuecommand
= hpsa_scsi_queue_command
,
671 .scan_start
= hpsa_scan_start
,
672 .scan_finished
= hpsa_scan_finished
,
673 .change_queue_depth
= hpsa_change_queue_depth
,
675 .use_clustering
= ENABLE_CLUSTERING
,
676 .eh_abort_handler
= hpsa_eh_abort_handler
,
677 .eh_device_reset_handler
= hpsa_eh_device_reset_handler
,
679 .slave_alloc
= hpsa_slave_alloc
,
680 .slave_destroy
= hpsa_slave_destroy
,
682 .compat_ioctl
= hpsa_compat_ioctl
,
684 .sdev_attrs
= hpsa_sdev_attrs
,
685 .shost_attrs
= hpsa_shost_attrs
,
691 /* Enqueuing and dequeuing functions for cmdlists. */
692 static inline void addQ(struct list_head
*list
, struct CommandList
*c
)
694 list_add_tail(&c
->list
, list
);
697 static inline u32
next_command(struct ctlr_info
*h
, u8 q
)
700 struct reply_queue_buffer
*rq
= &h
->reply_queue
[q
];
703 if (h
->transMethod
& CFGTBL_Trans_io_accel1
)
704 return h
->access
.command_completed(h
, q
);
706 if (unlikely(!(h
->transMethod
& CFGTBL_Trans_Performant
)))
707 return h
->access
.command_completed(h
, q
);
709 if ((rq
->head
[rq
->current_entry
] & 1) == rq
->wraparound
) {
710 a
= rq
->head
[rq
->current_entry
];
712 spin_lock_irqsave(&h
->lock
, flags
);
713 h
->commands_outstanding
--;
714 spin_unlock_irqrestore(&h
->lock
, flags
);
718 /* Check for wraparound */
719 if (rq
->current_entry
== h
->max_commands
) {
720 rq
->current_entry
= 0;
727 * There are some special bits in the bus address of the
728 * command that we have to set for the controller to know
729 * how to process the command:
731 * Normal performant mode:
732 * bit 0: 1 means performant mode, 0 means simple mode.
733 * bits 1-3 = block fetch table entry
734 * bits 4-6 = command type (== 0)
737 * bit 0 = "performant mode" bit.
738 * bits 1-3 = block fetch table entry
739 * bits 4-6 = command type (== 110)
740 * (command type is needed because ioaccel1 mode
741 * commands are submitted through the same register as normal
742 * mode commands, so this is how the controller knows whether
743 * the command is normal mode or ioaccel1 mode.)
746 * bit 0 = "performant mode" bit.
747 * bits 1-4 = block fetch table entry (note extra bit)
748 * bits 4-6 = not needed, because ioaccel2 mode has
749 * a separate special register for submitting commands.
752 /* set_performant_mode: Modify the tag for cciss performant
753 * set bit 0 for pull model, bits 3-1 for block fetch
756 static void set_performant_mode(struct ctlr_info
*h
, struct CommandList
*c
)
758 if (likely(h
->transMethod
& CFGTBL_Trans_Performant
)) {
759 c
->busaddr
|= 1 | (h
->blockFetchTable
[c
->Header
.SGList
] << 1);
760 if (likely(h
->msix_vector
> 0))
761 c
->Header
.ReplyQueue
=
762 raw_smp_processor_id() % h
->nreply_queues
;
766 static void set_ioaccel1_performant_mode(struct ctlr_info
*h
,
767 struct CommandList
*c
)
769 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[c
->cmdindex
];
771 /* Tell the controller to post the reply to the queue for this
772 * processor. This seems to give the best I/O throughput.
774 cp
->ReplyQueue
= smp_processor_id() % h
->nreply_queues
;
775 /* Set the bits in the address sent down to include:
776 * - performant mode bit (bit 0)
777 * - pull count (bits 1-3)
778 * - command type (bits 4-6)
780 c
->busaddr
|= 1 | (h
->ioaccel1_blockFetchTable
[c
->Header
.SGList
] << 1) |
781 IOACCEL1_BUSADDR_CMDTYPE
;
784 static void set_ioaccel2_performant_mode(struct ctlr_info
*h
,
785 struct CommandList
*c
)
787 struct io_accel2_cmd
*cp
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
789 /* Tell the controller to post the reply to the queue for this
790 * processor. This seems to give the best I/O throughput.
792 cp
->reply_queue
= smp_processor_id() % h
->nreply_queues
;
793 /* Set the bits in the address sent down to include:
794 * - performant mode bit not used in ioaccel mode 2
795 * - pull count (bits 0-3)
796 * - command type isn't needed for ioaccel2
798 c
->busaddr
|= (h
->ioaccel2_blockFetchTable
[cp
->sg_count
]);
801 static int is_firmware_flash_cmd(u8
*cdb
)
803 return cdb
[0] == BMIC_WRITE
&& cdb
[6] == BMIC_FLASH_FIRMWARE
;
807 * During firmware flash, the heartbeat register may not update as frequently
808 * as it should. So we dial down lockup detection during firmware flash. and
809 * dial it back up when firmware flash completes.
811 #define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ)
812 #define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ)
813 static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info
*h
,
814 struct CommandList
*c
)
816 if (!is_firmware_flash_cmd(c
->Request
.CDB
))
818 atomic_inc(&h
->firmware_flash_in_progress
);
819 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH
;
822 static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info
*h
,
823 struct CommandList
*c
)
825 if (is_firmware_flash_cmd(c
->Request
.CDB
) &&
826 atomic_dec_and_test(&h
->firmware_flash_in_progress
))
827 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL
;
830 static void enqueue_cmd_and_start_io(struct ctlr_info
*h
,
831 struct CommandList
*c
)
835 switch (c
->cmd_type
) {
837 set_ioaccel1_performant_mode(h
, c
);
840 set_ioaccel2_performant_mode(h
, c
);
843 set_performant_mode(h
, c
);
845 dial_down_lockup_detection_during_fw_flash(h
, c
);
846 spin_lock_irqsave(&h
->lock
, flags
);
850 spin_unlock_irqrestore(&h
->lock
, flags
);
853 static inline void removeQ(struct CommandList
*c
)
855 if (WARN_ON(list_empty(&c
->list
)))
857 list_del_init(&c
->list
);
860 static inline int is_hba_lunid(unsigned char scsi3addr
[])
862 return memcmp(scsi3addr
, RAID_CTLR_LUNID
, 8) == 0;
865 static inline int is_scsi_rev_5(struct ctlr_info
*h
)
867 if (!h
->hba_inquiry_data
)
869 if ((h
->hba_inquiry_data
[2] & 0x07) == 5)
874 static int hpsa_find_target_lun(struct ctlr_info
*h
,
875 unsigned char scsi3addr
[], int bus
, int *target
, int *lun
)
877 /* finds an unused bus, target, lun for a new physical device
878 * assumes h->devlock is held
881 DECLARE_BITMAP(lun_taken
, HPSA_MAX_DEVICES
);
883 bitmap_zero(lun_taken
, HPSA_MAX_DEVICES
);
885 for (i
= 0; i
< h
->ndevices
; i
++) {
886 if (h
->dev
[i
]->bus
== bus
&& h
->dev
[i
]->target
!= -1)
887 __set_bit(h
->dev
[i
]->target
, lun_taken
);
890 i
= find_first_zero_bit(lun_taken
, HPSA_MAX_DEVICES
);
891 if (i
< HPSA_MAX_DEVICES
) {
900 /* Add an entry into h->dev[] array. */
901 static int hpsa_scsi_add_entry(struct ctlr_info
*h
, int hostno
,
902 struct hpsa_scsi_dev_t
*device
,
903 struct hpsa_scsi_dev_t
*added
[], int *nadded
)
905 /* assumes h->devlock is held */
908 unsigned char addr1
[8], addr2
[8];
909 struct hpsa_scsi_dev_t
*sd
;
911 if (n
>= HPSA_MAX_DEVICES
) {
912 dev_err(&h
->pdev
->dev
, "too many devices, some will be "
917 /* physical devices do not have lun or target assigned until now. */
918 if (device
->lun
!= -1)
919 /* Logical device, lun is already assigned. */
922 /* If this device a non-zero lun of a multi-lun device
923 * byte 4 of the 8-byte LUN addr will contain the logical
924 * unit no, zero otherise.
926 if (device
->scsi3addr
[4] == 0) {
927 /* This is not a non-zero lun of a multi-lun device */
928 if (hpsa_find_target_lun(h
, device
->scsi3addr
,
929 device
->bus
, &device
->target
, &device
->lun
) != 0)
934 /* This is a non-zero lun of a multi-lun device.
935 * Search through our list and find the device which
936 * has the same 8 byte LUN address, excepting byte 4.
937 * Assign the same bus and target for this new LUN.
938 * Use the logical unit number from the firmware.
940 memcpy(addr1
, device
->scsi3addr
, 8);
942 for (i
= 0; i
< n
; i
++) {
944 memcpy(addr2
, sd
->scsi3addr
, 8);
946 /* differ only in byte 4? */
947 if (memcmp(addr1
, addr2
, 8) == 0) {
948 device
->bus
= sd
->bus
;
949 device
->target
= sd
->target
;
950 device
->lun
= device
->scsi3addr
[4];
954 if (device
->lun
== -1) {
955 dev_warn(&h
->pdev
->dev
, "physical device with no LUN=0,"
956 " suspect firmware bug or unsupported hardware "
965 added
[*nadded
] = device
;
968 /* initially, (before registering with scsi layer) we don't
969 * know our hostno and we don't want to print anything first
970 * time anyway (the scsi layer's inquiries will show that info)
972 /* if (hostno != -1) */
973 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d added.\n",
974 scsi_device_type(device
->devtype
), hostno
,
975 device
->bus
, device
->target
, device
->lun
);
979 /* Update an entry in h->dev[] array. */
980 static void hpsa_scsi_update_entry(struct ctlr_info
*h
, int hostno
,
981 int entry
, struct hpsa_scsi_dev_t
*new_entry
)
983 /* assumes h->devlock is held */
984 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
986 /* Raid level changed. */
987 h
->dev
[entry
]->raid_level
= new_entry
->raid_level
;
989 /* Raid offload parameters changed. */
990 h
->dev
[entry
]->offload_config
= new_entry
->offload_config
;
991 h
->dev
[entry
]->offload_enabled
= new_entry
->offload_enabled
;
992 h
->dev
[entry
]->ioaccel_handle
= new_entry
->ioaccel_handle
;
993 h
->dev
[entry
]->offload_to_mirror
= new_entry
->offload_to_mirror
;
994 h
->dev
[entry
]->raid_map
= new_entry
->raid_map
;
996 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d updated.\n",
997 scsi_device_type(new_entry
->devtype
), hostno
, new_entry
->bus
,
998 new_entry
->target
, new_entry
->lun
);
1001 /* Replace an entry from h->dev[] array. */
1002 static void hpsa_scsi_replace_entry(struct ctlr_info
*h
, int hostno
,
1003 int entry
, struct hpsa_scsi_dev_t
*new_entry
,
1004 struct hpsa_scsi_dev_t
*added
[], int *nadded
,
1005 struct hpsa_scsi_dev_t
*removed
[], int *nremoved
)
1007 /* assumes h->devlock is held */
1008 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
1009 removed
[*nremoved
] = h
->dev
[entry
];
1013 * New physical devices won't have target/lun assigned yet
1014 * so we need to preserve the values in the slot we are replacing.
1016 if (new_entry
->target
== -1) {
1017 new_entry
->target
= h
->dev
[entry
]->target
;
1018 new_entry
->lun
= h
->dev
[entry
]->lun
;
1021 h
->dev
[entry
] = new_entry
;
1022 added
[*nadded
] = new_entry
;
1024 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d changed.\n",
1025 scsi_device_type(new_entry
->devtype
), hostno
, new_entry
->bus
,
1026 new_entry
->target
, new_entry
->lun
);
1029 /* Remove an entry from h->dev[] array. */
1030 static void hpsa_scsi_remove_entry(struct ctlr_info
*h
, int hostno
, int entry
,
1031 struct hpsa_scsi_dev_t
*removed
[], int *nremoved
)
1033 /* assumes h->devlock is held */
1035 struct hpsa_scsi_dev_t
*sd
;
1037 BUG_ON(entry
< 0 || entry
>= HPSA_MAX_DEVICES
);
1040 removed
[*nremoved
] = h
->dev
[entry
];
1043 for (i
= entry
; i
< h
->ndevices
-1; i
++)
1044 h
->dev
[i
] = h
->dev
[i
+1];
1046 dev_info(&h
->pdev
->dev
, "%s device c%db%dt%dl%d removed.\n",
1047 scsi_device_type(sd
->devtype
), hostno
, sd
->bus
, sd
->target
,
1051 #define SCSI3ADDR_EQ(a, b) ( \
1052 (a)[7] == (b)[7] && \
1053 (a)[6] == (b)[6] && \
1054 (a)[5] == (b)[5] && \
1055 (a)[4] == (b)[4] && \
1056 (a)[3] == (b)[3] && \
1057 (a)[2] == (b)[2] && \
1058 (a)[1] == (b)[1] && \
1061 static void fixup_botched_add(struct ctlr_info
*h
,
1062 struct hpsa_scsi_dev_t
*added
)
1064 /* called when scsi_add_device fails in order to re-adjust
1065 * h->dev[] to match the mid layer's view.
1067 unsigned long flags
;
1070 spin_lock_irqsave(&h
->lock
, flags
);
1071 for (i
= 0; i
< h
->ndevices
; i
++) {
1072 if (h
->dev
[i
] == added
) {
1073 for (j
= i
; j
< h
->ndevices
-1; j
++)
1074 h
->dev
[j
] = h
->dev
[j
+1];
1079 spin_unlock_irqrestore(&h
->lock
, flags
);
1083 static inline int device_is_the_same(struct hpsa_scsi_dev_t
*dev1
,
1084 struct hpsa_scsi_dev_t
*dev2
)
1086 /* we compare everything except lun and target as these
1087 * are not yet assigned. Compare parts likely
1090 if (memcmp(dev1
->scsi3addr
, dev2
->scsi3addr
,
1091 sizeof(dev1
->scsi3addr
)) != 0)
1093 if (memcmp(dev1
->device_id
, dev2
->device_id
,
1094 sizeof(dev1
->device_id
)) != 0)
1096 if (memcmp(dev1
->model
, dev2
->model
, sizeof(dev1
->model
)) != 0)
1098 if (memcmp(dev1
->vendor
, dev2
->vendor
, sizeof(dev1
->vendor
)) != 0)
1100 if (dev1
->devtype
!= dev2
->devtype
)
1102 if (dev1
->bus
!= dev2
->bus
)
1107 static inline int device_updated(struct hpsa_scsi_dev_t
*dev1
,
1108 struct hpsa_scsi_dev_t
*dev2
)
1110 /* Device attributes that can change, but don't mean
1111 * that the device is a different device, nor that the OS
1112 * needs to be told anything about the change.
1114 if (dev1
->raid_level
!= dev2
->raid_level
)
1116 if (dev1
->offload_config
!= dev2
->offload_config
)
1118 if (dev1
->offload_enabled
!= dev2
->offload_enabled
)
1123 /* Find needle in haystack. If exact match found, return DEVICE_SAME,
1124 * and return needle location in *index. If scsi3addr matches, but not
1125 * vendor, model, serial num, etc. return DEVICE_CHANGED, and return needle
1126 * location in *index.
1127 * In the case of a minor device attribute change, such as RAID level, just
1128 * return DEVICE_UPDATED, along with the updated device's location in index.
1129 * If needle not found, return DEVICE_NOT_FOUND.
1131 static int hpsa_scsi_find_entry(struct hpsa_scsi_dev_t
*needle
,
1132 struct hpsa_scsi_dev_t
*haystack
[], int haystack_size
,
1136 #define DEVICE_NOT_FOUND 0
1137 #define DEVICE_CHANGED 1
1138 #define DEVICE_SAME 2
1139 #define DEVICE_UPDATED 3
1140 for (i
= 0; i
< haystack_size
; i
++) {
1141 if (haystack
[i
] == NULL
) /* previously removed. */
1143 if (SCSI3ADDR_EQ(needle
->scsi3addr
, haystack
[i
]->scsi3addr
)) {
1145 if (device_is_the_same(needle
, haystack
[i
])) {
1146 if (device_updated(needle
, haystack
[i
]))
1147 return DEVICE_UPDATED
;
1150 /* Keep offline devices offline */
1151 if (needle
->volume_offline
)
1152 return DEVICE_NOT_FOUND
;
1153 return DEVICE_CHANGED
;
1158 return DEVICE_NOT_FOUND
;
1161 static void hpsa_monitor_offline_device(struct ctlr_info
*h
,
1162 unsigned char scsi3addr
[])
1164 struct offline_device_entry
*device
;
1165 unsigned long flags
;
1167 /* Check to see if device is already on the list */
1168 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
1169 list_for_each_entry(device
, &h
->offline_device_list
, offline_list
) {
1170 if (memcmp(device
->scsi3addr
, scsi3addr
,
1171 sizeof(device
->scsi3addr
)) == 0) {
1172 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1176 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1178 /* Device is not on the list, add it. */
1179 device
= kmalloc(sizeof(*device
), GFP_KERNEL
);
1181 dev_warn(&h
->pdev
->dev
, "out of memory in %s\n", __func__
);
1184 memcpy(device
->scsi3addr
, scsi3addr
, sizeof(device
->scsi3addr
));
1185 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
1186 list_add_tail(&device
->offline_list
, &h
->offline_device_list
);
1187 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
1190 /* Print a message explaining various offline volume states */
1191 static void hpsa_show_volume_status(struct ctlr_info
*h
,
1192 struct hpsa_scsi_dev_t
*sd
)
1194 if (sd
->volume_offline
== HPSA_VPD_LV_STATUS_UNSUPPORTED
)
1195 dev_info(&h
->pdev
->dev
,
1196 "C%d:B%d:T%d:L%d Volume status is not available through vital product data pages.\n",
1197 h
->scsi_host
->host_no
,
1198 sd
->bus
, sd
->target
, sd
->lun
);
1199 switch (sd
->volume_offline
) {
1202 case HPSA_LV_UNDERGOING_ERASE
:
1203 dev_info(&h
->pdev
->dev
,
1204 "C%d:B%d:T%d:L%d Volume is undergoing background erase process.\n",
1205 h
->scsi_host
->host_no
,
1206 sd
->bus
, sd
->target
, sd
->lun
);
1208 case HPSA_LV_UNDERGOING_RPI
:
1209 dev_info(&h
->pdev
->dev
,
1210 "C%d:B%d:T%d:L%d Volume is undergoing rapid parity initialization process.\n",
1211 h
->scsi_host
->host_no
,
1212 sd
->bus
, sd
->target
, sd
->lun
);
1214 case HPSA_LV_PENDING_RPI
:
1215 dev_info(&h
->pdev
->dev
,
1216 "C%d:B%d:T%d:L%d Volume is queued for rapid parity initialization process.\n",
1217 h
->scsi_host
->host_no
,
1218 sd
->bus
, sd
->target
, sd
->lun
);
1220 case HPSA_LV_ENCRYPTED_NO_KEY
:
1221 dev_info(&h
->pdev
->dev
,
1222 "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because key is not present.\n",
1223 h
->scsi_host
->host_no
,
1224 sd
->bus
, sd
->target
, sd
->lun
);
1226 case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER
:
1227 dev_info(&h
->pdev
->dev
,
1228 "C%d:B%d:T%d:L%d Volume is not encrypted and cannot be accessed because controller is in encryption-only mode.\n",
1229 h
->scsi_host
->host_no
,
1230 sd
->bus
, sd
->target
, sd
->lun
);
1232 case HPSA_LV_UNDERGOING_ENCRYPTION
:
1233 dev_info(&h
->pdev
->dev
,
1234 "C%d:B%d:T%d:L%d Volume is undergoing encryption process.\n",
1235 h
->scsi_host
->host_no
,
1236 sd
->bus
, sd
->target
, sd
->lun
);
1238 case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING
:
1239 dev_info(&h
->pdev
->dev
,
1240 "C%d:B%d:T%d:L%d Volume is undergoing encryption re-keying process.\n",
1241 h
->scsi_host
->host_no
,
1242 sd
->bus
, sd
->target
, sd
->lun
);
1244 case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER
:
1245 dev_info(&h
->pdev
->dev
,
1246 "C%d:B%d:T%d:L%d Volume is encrypted and cannot be accessed because controller does not have encryption enabled.\n",
1247 h
->scsi_host
->host_no
,
1248 sd
->bus
, sd
->target
, sd
->lun
);
1250 case HPSA_LV_PENDING_ENCRYPTION
:
1251 dev_info(&h
->pdev
->dev
,
1252 "C%d:B%d:T%d:L%d Volume is pending migration to encrypted state, but process has not started.\n",
1253 h
->scsi_host
->host_no
,
1254 sd
->bus
, sd
->target
, sd
->lun
);
1256 case HPSA_LV_PENDING_ENCRYPTION_REKEYING
:
1257 dev_info(&h
->pdev
->dev
,
1258 "C%d:B%d:T%d:L%d Volume is encrypted and is pending encryption rekeying.\n",
1259 h
->scsi_host
->host_no
,
1260 sd
->bus
, sd
->target
, sd
->lun
);
1265 static void adjust_hpsa_scsi_table(struct ctlr_info
*h
, int hostno
,
1266 struct hpsa_scsi_dev_t
*sd
[], int nsds
)
1268 /* sd contains scsi3 addresses and devtypes, and inquiry
1269 * data. This function takes what's in sd to be the current
1270 * reality and updates h->dev[] to reflect that reality.
1272 int i
, entry
, device_change
, changes
= 0;
1273 struct hpsa_scsi_dev_t
*csd
;
1274 unsigned long flags
;
1275 struct hpsa_scsi_dev_t
**added
, **removed
;
1276 int nadded
, nremoved
;
1277 struct Scsi_Host
*sh
= NULL
;
1279 added
= kzalloc(sizeof(*added
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
1280 removed
= kzalloc(sizeof(*removed
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
1282 if (!added
|| !removed
) {
1283 dev_warn(&h
->pdev
->dev
, "out of memory in "
1284 "adjust_hpsa_scsi_table\n");
1288 spin_lock_irqsave(&h
->devlock
, flags
);
1290 /* find any devices in h->dev[] that are not in
1291 * sd[] and remove them from h->dev[], and for any
1292 * devices which have changed, remove the old device
1293 * info and add the new device info.
1294 * If minor device attributes change, just update
1295 * the existing device structure.
1300 while (i
< h
->ndevices
) {
1302 device_change
= hpsa_scsi_find_entry(csd
, sd
, nsds
, &entry
);
1303 if (device_change
== DEVICE_NOT_FOUND
) {
1305 hpsa_scsi_remove_entry(h
, hostno
, i
,
1306 removed
, &nremoved
);
1307 continue; /* remove ^^^, hence i not incremented */
1308 } else if (device_change
== DEVICE_CHANGED
) {
1310 hpsa_scsi_replace_entry(h
, hostno
, i
, sd
[entry
],
1311 added
, &nadded
, removed
, &nremoved
);
1312 /* Set it to NULL to prevent it from being freed
1313 * at the bottom of hpsa_update_scsi_devices()
1316 } else if (device_change
== DEVICE_UPDATED
) {
1317 hpsa_scsi_update_entry(h
, hostno
, i
, sd
[entry
]);
1322 /* Now, make sure every device listed in sd[] is also
1323 * listed in h->dev[], adding them if they aren't found
1326 for (i
= 0; i
< nsds
; i
++) {
1327 if (!sd
[i
]) /* if already added above. */
1330 /* Don't add devices which are NOT READY, FORMAT IN PROGRESS
1331 * as the SCSI mid-layer does not handle such devices well.
1332 * It relentlessly loops sending TUR at 3Hz, then READ(10)
1333 * at 160Hz, and prevents the system from coming up.
1335 if (sd
[i
]->volume_offline
) {
1336 hpsa_show_volume_status(h
, sd
[i
]);
1337 dev_info(&h
->pdev
->dev
, "c%db%dt%dl%d: temporarily offline\n",
1338 h
->scsi_host
->host_no
,
1339 sd
[i
]->bus
, sd
[i
]->target
, sd
[i
]->lun
);
1343 device_change
= hpsa_scsi_find_entry(sd
[i
], h
->dev
,
1344 h
->ndevices
, &entry
);
1345 if (device_change
== DEVICE_NOT_FOUND
) {
1347 if (hpsa_scsi_add_entry(h
, hostno
, sd
[i
],
1348 added
, &nadded
) != 0)
1350 sd
[i
] = NULL
; /* prevent from being freed later. */
1351 } else if (device_change
== DEVICE_CHANGED
) {
1352 /* should never happen... */
1354 dev_warn(&h
->pdev
->dev
,
1355 "device unexpectedly changed.\n");
1356 /* but if it does happen, we just ignore that device */
1359 spin_unlock_irqrestore(&h
->devlock
, flags
);
1361 /* Monitor devices which are in one of several NOT READY states to be
1362 * brought online later. This must be done without holding h->devlock,
1363 * so don't touch h->dev[]
1365 for (i
= 0; i
< nsds
; i
++) {
1366 if (!sd
[i
]) /* if already added above. */
1368 if (sd
[i
]->volume_offline
)
1369 hpsa_monitor_offline_device(h
, sd
[i
]->scsi3addr
);
1372 /* Don't notify scsi mid layer of any changes the first time through
1373 * (or if there are no changes) scsi_scan_host will do it later the
1374 * first time through.
1376 if (hostno
== -1 || !changes
)
1380 /* Notify scsi mid layer of any removed devices */
1381 for (i
= 0; i
< nremoved
; i
++) {
1382 struct scsi_device
*sdev
=
1383 scsi_device_lookup(sh
, removed
[i
]->bus
,
1384 removed
[i
]->target
, removed
[i
]->lun
);
1386 scsi_remove_device(sdev
);
1387 scsi_device_put(sdev
);
1389 /* We don't expect to get here.
1390 * future cmds to this device will get selection
1391 * timeout as if the device was gone.
1393 dev_warn(&h
->pdev
->dev
, "didn't find c%db%dt%dl%d "
1394 " for removal.", hostno
, removed
[i
]->bus
,
1395 removed
[i
]->target
, removed
[i
]->lun
);
1401 /* Notify scsi mid layer of any added devices */
1402 for (i
= 0; i
< nadded
; i
++) {
1403 if (scsi_add_device(sh
, added
[i
]->bus
,
1404 added
[i
]->target
, added
[i
]->lun
) == 0)
1406 dev_warn(&h
->pdev
->dev
, "scsi_add_device c%db%dt%dl%d failed, "
1407 "device not added.\n", hostno
, added
[i
]->bus
,
1408 added
[i
]->target
, added
[i
]->lun
);
1409 /* now we have to remove it from h->dev,
1410 * since it didn't get added to scsi mid layer
1412 fixup_botched_add(h
, added
[i
]);
1421 * Lookup bus/target/lun and return corresponding struct hpsa_scsi_dev_t *
1422 * Assume's h->devlock is held.
1424 static struct hpsa_scsi_dev_t
*lookup_hpsa_scsi_dev(struct ctlr_info
*h
,
1425 int bus
, int target
, int lun
)
1428 struct hpsa_scsi_dev_t
*sd
;
1430 for (i
= 0; i
< h
->ndevices
; i
++) {
1432 if (sd
->bus
== bus
&& sd
->target
== target
&& sd
->lun
== lun
)
1438 /* link sdev->hostdata to our per-device structure. */
1439 static int hpsa_slave_alloc(struct scsi_device
*sdev
)
1441 struct hpsa_scsi_dev_t
*sd
;
1442 unsigned long flags
;
1443 struct ctlr_info
*h
;
1445 h
= sdev_to_hba(sdev
);
1446 spin_lock_irqsave(&h
->devlock
, flags
);
1447 sd
= lookup_hpsa_scsi_dev(h
, sdev_channel(sdev
),
1448 sdev_id(sdev
), sdev
->lun
);
1450 sdev
->hostdata
= sd
;
1451 spin_unlock_irqrestore(&h
->devlock
, flags
);
1455 static void hpsa_slave_destroy(struct scsi_device
*sdev
)
1457 /* nothing to do. */
1460 static void hpsa_free_sg_chain_blocks(struct ctlr_info
*h
)
1464 if (!h
->cmd_sg_list
)
1466 for (i
= 0; i
< h
->nr_cmds
; i
++) {
1467 kfree(h
->cmd_sg_list
[i
]);
1468 h
->cmd_sg_list
[i
] = NULL
;
1470 kfree(h
->cmd_sg_list
);
1471 h
->cmd_sg_list
= NULL
;
1474 static int hpsa_allocate_sg_chain_blocks(struct ctlr_info
*h
)
1478 if (h
->chainsize
<= 0)
1481 h
->cmd_sg_list
= kzalloc(sizeof(*h
->cmd_sg_list
) * h
->nr_cmds
,
1483 if (!h
->cmd_sg_list
)
1485 for (i
= 0; i
< h
->nr_cmds
; i
++) {
1486 h
->cmd_sg_list
[i
] = kmalloc(sizeof(*h
->cmd_sg_list
[i
]) *
1487 h
->chainsize
, GFP_KERNEL
);
1488 if (!h
->cmd_sg_list
[i
])
1494 hpsa_free_sg_chain_blocks(h
);
1498 static int hpsa_map_sg_chain_block(struct ctlr_info
*h
,
1499 struct CommandList
*c
)
1501 struct SGDescriptor
*chain_sg
, *chain_block
;
1504 chain_sg
= &c
->SG
[h
->max_cmd_sg_entries
- 1];
1505 chain_block
= h
->cmd_sg_list
[c
->cmdindex
];
1506 chain_sg
->Ext
= HPSA_SG_CHAIN
;
1507 chain_sg
->Len
= sizeof(*chain_sg
) *
1508 (c
->Header
.SGTotal
- h
->max_cmd_sg_entries
);
1509 temp64
= pci_map_single(h
->pdev
, chain_block
, chain_sg
->Len
,
1511 if (dma_mapping_error(&h
->pdev
->dev
, temp64
)) {
1512 /* prevent subsequent unmapping */
1513 chain_sg
->Addr
.lower
= 0;
1514 chain_sg
->Addr
.upper
= 0;
1517 chain_sg
->Addr
.lower
= (u32
) (temp64
& 0x0FFFFFFFFULL
);
1518 chain_sg
->Addr
.upper
= (u32
) ((temp64
>> 32) & 0x0FFFFFFFFULL
);
1522 static void hpsa_unmap_sg_chain_block(struct ctlr_info
*h
,
1523 struct CommandList
*c
)
1525 struct SGDescriptor
*chain_sg
;
1526 union u64bit temp64
;
1528 if (c
->Header
.SGTotal
<= h
->max_cmd_sg_entries
)
1531 chain_sg
= &c
->SG
[h
->max_cmd_sg_entries
- 1];
1532 temp64
.val32
.lower
= chain_sg
->Addr
.lower
;
1533 temp64
.val32
.upper
= chain_sg
->Addr
.upper
;
1534 pci_unmap_single(h
->pdev
, temp64
.val
, chain_sg
->Len
, PCI_DMA_TODEVICE
);
1538 /* Decode the various types of errors on ioaccel2 path.
1539 * Return 1 for any error that should generate a RAID path retry.
1540 * Return 0 for errors that don't require a RAID path retry.
1542 static int handle_ioaccel_mode2_error(struct ctlr_info
*h
,
1543 struct CommandList
*c
,
1544 struct scsi_cmnd
*cmd
,
1545 struct io_accel2_cmd
*c2
)
1550 switch (c2
->error_data
.serv_response
) {
1551 case IOACCEL2_SERV_RESPONSE_COMPLETE
:
1552 switch (c2
->error_data
.status
) {
1553 case IOACCEL2_STATUS_SR_TASK_COMP_GOOD
:
1555 case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND
:
1556 dev_warn(&h
->pdev
->dev
,
1557 "%s: task complete with check condition.\n",
1558 "HP SSD Smart Path");
1559 cmd
->result
|= SAM_STAT_CHECK_CONDITION
;
1560 if (c2
->error_data
.data_present
!=
1561 IOACCEL2_SENSE_DATA_PRESENT
) {
1562 memset(cmd
->sense_buffer
, 0,
1563 SCSI_SENSE_BUFFERSIZE
);
1566 /* copy the sense data */
1567 data_len
= c2
->error_data
.sense_data_len
;
1568 if (data_len
> SCSI_SENSE_BUFFERSIZE
)
1569 data_len
= SCSI_SENSE_BUFFERSIZE
;
1570 if (data_len
> sizeof(c2
->error_data
.sense_data_buff
))
1572 sizeof(c2
->error_data
.sense_data_buff
);
1573 memcpy(cmd
->sense_buffer
,
1574 c2
->error_data
.sense_data_buff
, data_len
);
1577 case IOACCEL2_STATUS_SR_TASK_COMP_BUSY
:
1578 dev_warn(&h
->pdev
->dev
,
1579 "%s: task complete with BUSY status.\n",
1580 "HP SSD Smart Path");
1583 case IOACCEL2_STATUS_SR_TASK_COMP_RES_CON
:
1584 dev_warn(&h
->pdev
->dev
,
1585 "%s: task complete with reservation conflict.\n",
1586 "HP SSD Smart Path");
1589 case IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL
:
1590 /* Make scsi midlayer do unlimited retries */
1591 cmd
->result
= DID_IMM_RETRY
<< 16;
1593 case IOACCEL2_STATUS_SR_TASK_COMP_ABORTED
:
1594 dev_warn(&h
->pdev
->dev
,
1595 "%s: task complete with aborted status.\n",
1596 "HP SSD Smart Path");
1600 dev_warn(&h
->pdev
->dev
,
1601 "%s: task complete with unrecognized status: 0x%02x\n",
1602 "HP SSD Smart Path", c2
->error_data
.status
);
1607 case IOACCEL2_SERV_RESPONSE_FAILURE
:
1608 /* don't expect to get here. */
1609 dev_warn(&h
->pdev
->dev
,
1610 "unexpected delivery or target failure, status = 0x%02x\n",
1611 c2
->error_data
.status
);
1614 case IOACCEL2_SERV_RESPONSE_TMF_COMPLETE
:
1616 case IOACCEL2_SERV_RESPONSE_TMF_SUCCESS
:
1618 case IOACCEL2_SERV_RESPONSE_TMF_REJECTED
:
1619 dev_warn(&h
->pdev
->dev
, "task management function rejected.\n");
1622 case IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN
:
1623 dev_warn(&h
->pdev
->dev
, "task management function invalid LUN\n");
1626 dev_warn(&h
->pdev
->dev
,
1627 "%s: Unrecognized server response: 0x%02x\n",
1628 "HP SSD Smart Path",
1629 c2
->error_data
.serv_response
);
1634 return retry
; /* retry on raid path? */
1637 static void process_ioaccel2_completion(struct ctlr_info
*h
,
1638 struct CommandList
*c
, struct scsi_cmnd
*cmd
,
1639 struct hpsa_scsi_dev_t
*dev
)
1641 struct io_accel2_cmd
*c2
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
1644 /* check for good status */
1645 if (likely(c2
->error_data
.serv_response
== 0 &&
1646 c2
->error_data
.status
== 0)) {
1648 cmd
->scsi_done(cmd
);
1652 /* Any RAID offload error results in retry which will use
1653 * the normal I/O path so the controller can handle whatever's
1656 if (is_logical_dev_addr_mode(dev
->scsi3addr
) &&
1657 c2
->error_data
.serv_response
==
1658 IOACCEL2_SERV_RESPONSE_FAILURE
) {
1659 dev
->offload_enabled
= 0;
1660 h
->drv_req_rescan
= 1; /* schedule controller for a rescan */
1661 cmd
->result
= DID_SOFT_ERROR
<< 16;
1663 cmd
->scsi_done(cmd
);
1666 raid_retry
= handle_ioaccel_mode2_error(h
, c
, cmd
, c2
);
1667 /* If error found, disable Smart Path, schedule a rescan,
1668 * and force a retry on the standard path.
1671 dev_warn(&h
->pdev
->dev
, "%s: Retrying on standard path.\n",
1672 "HP SSD Smart Path");
1673 dev
->offload_enabled
= 0; /* Disable Smart Path */
1674 h
->drv_req_rescan
= 1; /* schedule controller rescan */
1675 cmd
->result
= DID_SOFT_ERROR
<< 16;
1678 cmd
->scsi_done(cmd
);
1681 static void complete_scsi_command(struct CommandList
*cp
)
1683 struct scsi_cmnd
*cmd
;
1684 struct ctlr_info
*h
;
1685 struct ErrorInfo
*ei
;
1686 struct hpsa_scsi_dev_t
*dev
;
1688 unsigned char sense_key
;
1689 unsigned char asc
; /* additional sense code */
1690 unsigned char ascq
; /* additional sense code qualifier */
1691 unsigned long sense_data_size
;
1694 cmd
= (struct scsi_cmnd
*) cp
->scsi_cmd
;
1696 dev
= cmd
->device
->hostdata
;
1698 scsi_dma_unmap(cmd
); /* undo the DMA mappings */
1699 if ((cp
->cmd_type
== CMD_SCSI
) &&
1700 (cp
->Header
.SGTotal
> h
->max_cmd_sg_entries
))
1701 hpsa_unmap_sg_chain_block(h
, cp
);
1703 cmd
->result
= (DID_OK
<< 16); /* host byte */
1704 cmd
->result
|= (COMMAND_COMPLETE
<< 8); /* msg byte */
1706 if (cp
->cmd_type
== CMD_IOACCEL2
)
1707 return process_ioaccel2_completion(h
, cp
, cmd
, dev
);
1709 cmd
->result
|= ei
->ScsiStatus
;
1711 /* copy the sense data whether we need to or not. */
1712 if (SCSI_SENSE_BUFFERSIZE
< sizeof(ei
->SenseInfo
))
1713 sense_data_size
= SCSI_SENSE_BUFFERSIZE
;
1715 sense_data_size
= sizeof(ei
->SenseInfo
);
1716 if (ei
->SenseLen
< sense_data_size
)
1717 sense_data_size
= ei
->SenseLen
;
1719 memcpy(cmd
->sense_buffer
, ei
->SenseInfo
, sense_data_size
);
1720 scsi_set_resid(cmd
, ei
->ResidualCnt
);
1722 if (ei
->CommandStatus
== 0) {
1724 cmd
->scsi_done(cmd
);
1728 /* For I/O accelerator commands, copy over some fields to the normal
1729 * CISS header used below for error handling.
1731 if (cp
->cmd_type
== CMD_IOACCEL1
) {
1732 struct io_accel1_cmd
*c
= &h
->ioaccel_cmd_pool
[cp
->cmdindex
];
1733 cp
->Header
.SGList
= cp
->Header
.SGTotal
= scsi_sg_count(cmd
);
1734 cp
->Request
.CDBLen
= c
->io_flags
& IOACCEL1_IOFLAGS_CDBLEN_MASK
;
1735 cp
->Header
.Tag
.lower
= c
->Tag
.lower
;
1736 cp
->Header
.Tag
.upper
= c
->Tag
.upper
;
1737 memcpy(cp
->Header
.LUN
.LunAddrBytes
, c
->CISS_LUN
, 8);
1738 memcpy(cp
->Request
.CDB
, c
->CDB
, cp
->Request
.CDBLen
);
1740 /* Any RAID offload error results in retry which will use
1741 * the normal I/O path so the controller can handle whatever's
1744 if (is_logical_dev_addr_mode(dev
->scsi3addr
)) {
1745 if (ei
->CommandStatus
== CMD_IOACCEL_DISABLED
)
1746 dev
->offload_enabled
= 0;
1747 cmd
->result
= DID_SOFT_ERROR
<< 16;
1749 cmd
->scsi_done(cmd
);
1754 /* an error has occurred */
1755 switch (ei
->CommandStatus
) {
1757 case CMD_TARGET_STATUS
:
1758 if (ei
->ScsiStatus
) {
1760 sense_key
= 0xf & ei
->SenseInfo
[2];
1761 /* Get additional sense code */
1762 asc
= ei
->SenseInfo
[12];
1763 /* Get addition sense code qualifier */
1764 ascq
= ei
->SenseInfo
[13];
1767 if (ei
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
) {
1768 if (check_for_unit_attention(h
, cp
))
1770 if (sense_key
== ILLEGAL_REQUEST
) {
1772 * SCSI REPORT_LUNS is commonly unsupported on
1773 * Smart Array. Suppress noisy complaint.
1775 if (cp
->Request
.CDB
[0] == REPORT_LUNS
)
1778 /* If ASC/ASCQ indicate Logical Unit
1779 * Not Supported condition,
1781 if ((asc
== 0x25) && (ascq
== 0x0)) {
1782 dev_warn(&h
->pdev
->dev
, "cp %p "
1783 "has check condition\n", cp
);
1788 if (sense_key
== NOT_READY
) {
1789 /* If Sense is Not Ready, Logical Unit
1790 * Not ready, Manual Intervention
1793 if ((asc
== 0x04) && (ascq
== 0x03)) {
1794 dev_warn(&h
->pdev
->dev
, "cp %p "
1795 "has check condition: unit "
1796 "not ready, manual "
1797 "intervention required\n", cp
);
1801 if (sense_key
== ABORTED_COMMAND
) {
1802 /* Aborted command is retryable */
1803 dev_warn(&h
->pdev
->dev
, "cp %p "
1804 "has check condition: aborted command: "
1805 "ASC: 0x%x, ASCQ: 0x%x\n",
1807 cmd
->result
|= DID_SOFT_ERROR
<< 16;
1810 /* Must be some other type of check condition */
1811 dev_dbg(&h
->pdev
->dev
, "cp %p has check condition: "
1813 "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
1814 "Returning result: 0x%x, "
1815 "cmd=[%02x %02x %02x %02x %02x "
1816 "%02x %02x %02x %02x %02x %02x "
1817 "%02x %02x %02x %02x %02x]\n",
1818 cp
, sense_key
, asc
, ascq
,
1820 cmd
->cmnd
[0], cmd
->cmnd
[1],
1821 cmd
->cmnd
[2], cmd
->cmnd
[3],
1822 cmd
->cmnd
[4], cmd
->cmnd
[5],
1823 cmd
->cmnd
[6], cmd
->cmnd
[7],
1824 cmd
->cmnd
[8], cmd
->cmnd
[9],
1825 cmd
->cmnd
[10], cmd
->cmnd
[11],
1826 cmd
->cmnd
[12], cmd
->cmnd
[13],
1827 cmd
->cmnd
[14], cmd
->cmnd
[15]);
1832 /* Problem was not a check condition
1833 * Pass it up to the upper layers...
1835 if (ei
->ScsiStatus
) {
1836 dev_warn(&h
->pdev
->dev
, "cp %p has status 0x%x "
1837 "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
1838 "Returning result: 0x%x\n",
1840 sense_key
, asc
, ascq
,
1842 } else { /* scsi status is zero??? How??? */
1843 dev_warn(&h
->pdev
->dev
, "cp %p SCSI status was 0. "
1844 "Returning no connection.\n", cp
),
1846 /* Ordinarily, this case should never happen,
1847 * but there is a bug in some released firmware
1848 * revisions that allows it to happen if, for
1849 * example, a 4100 backplane loses power and
1850 * the tape drive is in it. We assume that
1851 * it's a fatal error of some kind because we
1852 * can't show that it wasn't. We will make it
1853 * look like selection timeout since that is
1854 * the most common reason for this to occur,
1855 * and it's severe enough.
1858 cmd
->result
= DID_NO_CONNECT
<< 16;
1862 case CMD_DATA_UNDERRUN
: /* let mid layer handle it. */
1864 case CMD_DATA_OVERRUN
:
1865 dev_warn(&h
->pdev
->dev
, "cp %p has"
1866 " completed with data overrun "
1870 /* print_bytes(cp, sizeof(*cp), 1, 0);
1872 /* We get CMD_INVALID if you address a non-existent device
1873 * instead of a selection timeout (no response). You will
1874 * see this if you yank out a drive, then try to access it.
1875 * This is kind of a shame because it means that any other
1876 * CMD_INVALID (e.g. driver bug) will get interpreted as a
1877 * missing target. */
1878 cmd
->result
= DID_NO_CONNECT
<< 16;
1881 case CMD_PROTOCOL_ERR
:
1882 cmd
->result
= DID_ERROR
<< 16;
1883 dev_warn(&h
->pdev
->dev
, "cp %p has "
1884 "protocol error\n", cp
);
1886 case CMD_HARDWARE_ERR
:
1887 cmd
->result
= DID_ERROR
<< 16;
1888 dev_warn(&h
->pdev
->dev
, "cp %p had hardware error\n", cp
);
1890 case CMD_CONNECTION_LOST
:
1891 cmd
->result
= DID_ERROR
<< 16;
1892 dev_warn(&h
->pdev
->dev
, "cp %p had connection lost\n", cp
);
1895 cmd
->result
= DID_ABORT
<< 16;
1896 dev_warn(&h
->pdev
->dev
, "cp %p was aborted with status 0x%x\n",
1897 cp
, ei
->ScsiStatus
);
1899 case CMD_ABORT_FAILED
:
1900 cmd
->result
= DID_ERROR
<< 16;
1901 dev_warn(&h
->pdev
->dev
, "cp %p reports abort failed\n", cp
);
1903 case CMD_UNSOLICITED_ABORT
:
1904 cmd
->result
= DID_SOFT_ERROR
<< 16; /* retry the command */
1905 dev_warn(&h
->pdev
->dev
, "cp %p aborted due to an unsolicited "
1909 cmd
->result
= DID_TIME_OUT
<< 16;
1910 dev_warn(&h
->pdev
->dev
, "cp %p timedout\n", cp
);
1912 case CMD_UNABORTABLE
:
1913 cmd
->result
= DID_ERROR
<< 16;
1914 dev_warn(&h
->pdev
->dev
, "Command unabortable\n");
1916 case CMD_IOACCEL_DISABLED
:
1917 /* This only handles the direct pass-through case since RAID
1918 * offload is handled above. Just attempt a retry.
1920 cmd
->result
= DID_SOFT_ERROR
<< 16;
1921 dev_warn(&h
->pdev
->dev
,
1922 "cp %p had HP SSD Smart Path error\n", cp
);
1925 cmd
->result
= DID_ERROR
<< 16;
1926 dev_warn(&h
->pdev
->dev
, "cp %p returned unknown status %x\n",
1927 cp
, ei
->CommandStatus
);
1930 cmd
->scsi_done(cmd
);
1933 static void hpsa_pci_unmap(struct pci_dev
*pdev
,
1934 struct CommandList
*c
, int sg_used
, int data_direction
)
1937 union u64bit addr64
;
1939 for (i
= 0; i
< sg_used
; i
++) {
1940 addr64
.val32
.lower
= c
->SG
[i
].Addr
.lower
;
1941 addr64
.val32
.upper
= c
->SG
[i
].Addr
.upper
;
1942 pci_unmap_single(pdev
, (dma_addr_t
) addr64
.val
, c
->SG
[i
].Len
,
1947 static int hpsa_map_one(struct pci_dev
*pdev
,
1948 struct CommandList
*cp
,
1955 if (buflen
== 0 || data_direction
== PCI_DMA_NONE
) {
1956 cp
->Header
.SGList
= 0;
1957 cp
->Header
.SGTotal
= 0;
1961 addr64
= (u64
) pci_map_single(pdev
, buf
, buflen
, data_direction
);
1962 if (dma_mapping_error(&pdev
->dev
, addr64
)) {
1963 /* Prevent subsequent unmap of something never mapped */
1964 cp
->Header
.SGList
= 0;
1965 cp
->Header
.SGTotal
= 0;
1968 cp
->SG
[0].Addr
.lower
=
1969 (u32
) (addr64
& (u64
) 0x00000000FFFFFFFF);
1970 cp
->SG
[0].Addr
.upper
=
1971 (u32
) ((addr64
>> 32) & (u64
) 0x00000000FFFFFFFF);
1972 cp
->SG
[0].Len
= buflen
;
1973 cp
->SG
[0].Ext
= HPSA_SG_LAST
; /* we are not chaining */
1974 cp
->Header
.SGList
= (u8
) 1; /* no. SGs contig in this cmd */
1975 cp
->Header
.SGTotal
= (u16
) 1; /* total sgs in this cmd list */
1979 static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info
*h
,
1980 struct CommandList
*c
)
1982 DECLARE_COMPLETION_ONSTACK(wait
);
1985 enqueue_cmd_and_start_io(h
, c
);
1986 wait_for_completion(&wait
);
1989 static u32
lockup_detected(struct ctlr_info
*h
)
1992 u32 rc
, *lockup_detected
;
1995 lockup_detected
= per_cpu_ptr(h
->lockup_detected
, cpu
);
1996 rc
= *lockup_detected
;
2001 static void hpsa_scsi_do_simple_cmd_core_if_no_lockup(struct ctlr_info
*h
,
2002 struct CommandList
*c
)
2004 /* If controller lockup detected, fake a hardware error. */
2005 if (unlikely(lockup_detected(h
)))
2006 c
->err_info
->CommandStatus
= CMD_HARDWARE_ERR
;
2008 hpsa_scsi_do_simple_cmd_core(h
, c
);
2011 #define MAX_DRIVER_CMD_RETRIES 25
2012 static void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info
*h
,
2013 struct CommandList
*c
, int data_direction
)
2015 int backoff_time
= 10, retry_count
= 0;
2018 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
2019 hpsa_scsi_do_simple_cmd_core(h
, c
);
2021 if (retry_count
> 3) {
2022 msleep(backoff_time
);
2023 if (backoff_time
< 1000)
2026 } while ((check_for_unit_attention(h
, c
) ||
2027 check_for_busy(h
, c
)) &&
2028 retry_count
<= MAX_DRIVER_CMD_RETRIES
);
2029 hpsa_pci_unmap(h
->pdev
, c
, 1, data_direction
);
2032 static void hpsa_print_cmd(struct ctlr_info
*h
, char *txt
,
2033 struct CommandList
*c
)
2035 const u8
*cdb
= c
->Request
.CDB
;
2036 const u8
*lun
= c
->Header
.LUN
.LunAddrBytes
;
2038 dev_warn(&h
->pdev
->dev
, "%s: LUN:%02x%02x%02x%02x%02x%02x%02x%02x"
2039 " CDB:%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
2040 txt
, lun
[0], lun
[1], lun
[2], lun
[3],
2041 lun
[4], lun
[5], lun
[6], lun
[7],
2042 cdb
[0], cdb
[1], cdb
[2], cdb
[3],
2043 cdb
[4], cdb
[5], cdb
[6], cdb
[7],
2044 cdb
[8], cdb
[9], cdb
[10], cdb
[11],
2045 cdb
[12], cdb
[13], cdb
[14], cdb
[15]);
2048 static void hpsa_scsi_interpret_error(struct ctlr_info
*h
,
2049 struct CommandList
*cp
)
2051 const struct ErrorInfo
*ei
= cp
->err_info
;
2052 struct device
*d
= &cp
->h
->pdev
->dev
;
2053 const u8
*sd
= ei
->SenseInfo
;
2055 switch (ei
->CommandStatus
) {
2056 case CMD_TARGET_STATUS
:
2057 hpsa_print_cmd(h
, "SCSI status", cp
);
2058 if (ei
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
)
2059 dev_warn(d
, "SCSI Status = 02, Sense key = %02x, ASC = %02x, ASCQ = %02x\n",
2060 sd
[2] & 0x0f, sd
[12], sd
[13]);
2062 dev_warn(d
, "SCSI Status = %02x\n", ei
->ScsiStatus
);
2063 if (ei
->ScsiStatus
== 0)
2064 dev_warn(d
, "SCSI status is abnormally zero. "
2065 "(probably indicates selection timeout "
2066 "reported incorrectly due to a known "
2067 "firmware bug, circa July, 2001.)\n");
2069 case CMD_DATA_UNDERRUN
: /* let mid layer handle it. */
2071 case CMD_DATA_OVERRUN
:
2072 hpsa_print_cmd(h
, "overrun condition", cp
);
2075 /* controller unfortunately reports SCSI passthru's
2076 * to non-existent targets as invalid commands.
2078 hpsa_print_cmd(h
, "invalid command", cp
);
2079 dev_warn(d
, "probably means device no longer present\n");
2082 case CMD_PROTOCOL_ERR
:
2083 hpsa_print_cmd(h
, "protocol error", cp
);
2085 case CMD_HARDWARE_ERR
:
2086 hpsa_print_cmd(h
, "hardware error", cp
);
2088 case CMD_CONNECTION_LOST
:
2089 hpsa_print_cmd(h
, "connection lost", cp
);
2092 hpsa_print_cmd(h
, "aborted", cp
);
2094 case CMD_ABORT_FAILED
:
2095 hpsa_print_cmd(h
, "abort failed", cp
);
2097 case CMD_UNSOLICITED_ABORT
:
2098 hpsa_print_cmd(h
, "unsolicited abort", cp
);
2101 hpsa_print_cmd(h
, "timed out", cp
);
2103 case CMD_UNABORTABLE
:
2104 hpsa_print_cmd(h
, "unabortable", cp
);
2107 hpsa_print_cmd(h
, "unknown status", cp
);
2108 dev_warn(d
, "Unknown command status %x\n",
2113 static int hpsa_scsi_do_inquiry(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2114 u16 page
, unsigned char *buf
,
2115 unsigned char bufsize
)
2118 struct CommandList
*c
;
2119 struct ErrorInfo
*ei
;
2121 c
= cmd_special_alloc(h
);
2123 if (c
== NULL
) { /* trouble... */
2124 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2128 if (fill_cmd(c
, HPSA_INQUIRY
, h
, buf
, bufsize
,
2129 page
, scsi3addr
, TYPE_CMD
)) {
2133 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2135 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2136 hpsa_scsi_interpret_error(h
, c
);
2140 cmd_special_free(h
, c
);
2144 static int hpsa_bmic_ctrl_mode_sense(struct ctlr_info
*h
,
2145 unsigned char *scsi3addr
, unsigned char page
,
2146 struct bmic_controller_parameters
*buf
, size_t bufsize
)
2149 struct CommandList
*c
;
2150 struct ErrorInfo
*ei
;
2152 c
= cmd_special_alloc(h
);
2154 if (c
== NULL
) { /* trouble... */
2155 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2159 if (fill_cmd(c
, BMIC_SENSE_CONTROLLER_PARAMETERS
, h
, buf
, bufsize
,
2160 page
, scsi3addr
, TYPE_CMD
)) {
2164 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2166 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2167 hpsa_scsi_interpret_error(h
, c
);
2171 cmd_special_free(h
, c
);
2175 static int hpsa_send_reset(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2179 struct CommandList
*c
;
2180 struct ErrorInfo
*ei
;
2182 c
= cmd_special_alloc(h
);
2184 if (c
== NULL
) { /* trouble... */
2185 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2189 /* fill_cmd can't fail here, no data buffer to map. */
2190 (void) fill_cmd(c
, HPSA_DEVICE_RESET_MSG
, h
, NULL
, 0, 0,
2191 scsi3addr
, TYPE_MSG
);
2192 c
->Request
.CDB
[1] = reset_type
; /* fill_cmd defaults to LUN reset */
2193 hpsa_scsi_do_simple_cmd_core(h
, c
);
2194 /* no unmap needed here because no data xfer. */
2197 if (ei
->CommandStatus
!= 0) {
2198 hpsa_scsi_interpret_error(h
, c
);
2201 cmd_special_free(h
, c
);
2205 static void hpsa_get_raid_level(struct ctlr_info
*h
,
2206 unsigned char *scsi3addr
, unsigned char *raid_level
)
2211 *raid_level
= RAID_UNKNOWN
;
2212 buf
= kzalloc(64, GFP_KERNEL
);
2215 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| 0xC1, buf
, 64);
2217 *raid_level
= buf
[8];
2218 if (*raid_level
> RAID_UNKNOWN
)
2219 *raid_level
= RAID_UNKNOWN
;
2224 #define HPSA_MAP_DEBUG
2225 #ifdef HPSA_MAP_DEBUG
2226 static void hpsa_debug_map_buff(struct ctlr_info
*h
, int rc
,
2227 struct raid_map_data
*map_buff
)
2229 struct raid_map_disk_data
*dd
= &map_buff
->data
[0];
2231 u16 map_cnt
, row_cnt
, disks_per_row
;
2236 /* Show details only if debugging has been activated. */
2237 if (h
->raid_offload_debug
< 2)
2240 dev_info(&h
->pdev
->dev
, "structure_size = %u\n",
2241 le32_to_cpu(map_buff
->structure_size
));
2242 dev_info(&h
->pdev
->dev
, "volume_blk_size = %u\n",
2243 le32_to_cpu(map_buff
->volume_blk_size
));
2244 dev_info(&h
->pdev
->dev
, "volume_blk_cnt = 0x%llx\n",
2245 le64_to_cpu(map_buff
->volume_blk_cnt
));
2246 dev_info(&h
->pdev
->dev
, "physicalBlockShift = %u\n",
2247 map_buff
->phys_blk_shift
);
2248 dev_info(&h
->pdev
->dev
, "parity_rotation_shift = %u\n",
2249 map_buff
->parity_rotation_shift
);
2250 dev_info(&h
->pdev
->dev
, "strip_size = %u\n",
2251 le16_to_cpu(map_buff
->strip_size
));
2252 dev_info(&h
->pdev
->dev
, "disk_starting_blk = 0x%llx\n",
2253 le64_to_cpu(map_buff
->disk_starting_blk
));
2254 dev_info(&h
->pdev
->dev
, "disk_blk_cnt = 0x%llx\n",
2255 le64_to_cpu(map_buff
->disk_blk_cnt
));
2256 dev_info(&h
->pdev
->dev
, "data_disks_per_row = %u\n",
2257 le16_to_cpu(map_buff
->data_disks_per_row
));
2258 dev_info(&h
->pdev
->dev
, "metadata_disks_per_row = %u\n",
2259 le16_to_cpu(map_buff
->metadata_disks_per_row
));
2260 dev_info(&h
->pdev
->dev
, "row_cnt = %u\n",
2261 le16_to_cpu(map_buff
->row_cnt
));
2262 dev_info(&h
->pdev
->dev
, "layout_map_count = %u\n",
2263 le16_to_cpu(map_buff
->layout_map_count
));
2264 dev_info(&h
->pdev
->dev
, "flags = %u\n",
2265 le16_to_cpu(map_buff
->flags
));
2266 if (map_buff
->flags
& RAID_MAP_FLAG_ENCRYPT_ON
)
2267 dev_info(&h
->pdev
->dev
, "encrypytion = ON\n");
2269 dev_info(&h
->pdev
->dev
, "encrypytion = OFF\n");
2270 dev_info(&h
->pdev
->dev
, "dekindex = %u\n",
2271 le16_to_cpu(map_buff
->dekindex
));
2273 map_cnt
= le16_to_cpu(map_buff
->layout_map_count
);
2274 for (map
= 0; map
< map_cnt
; map
++) {
2275 dev_info(&h
->pdev
->dev
, "Map%u:\n", map
);
2276 row_cnt
= le16_to_cpu(map_buff
->row_cnt
);
2277 for (row
= 0; row
< row_cnt
; row
++) {
2278 dev_info(&h
->pdev
->dev
, " Row%u:\n", row
);
2280 le16_to_cpu(map_buff
->data_disks_per_row
);
2281 for (col
= 0; col
< disks_per_row
; col
++, dd
++)
2282 dev_info(&h
->pdev
->dev
,
2283 " D%02u: h=0x%04x xor=%u,%u\n",
2284 col
, dd
->ioaccel_handle
,
2285 dd
->xor_mult
[0], dd
->xor_mult
[1]);
2287 le16_to_cpu(map_buff
->metadata_disks_per_row
);
2288 for (col
= 0; col
< disks_per_row
; col
++, dd
++)
2289 dev_info(&h
->pdev
->dev
,
2290 " M%02u: h=0x%04x xor=%u,%u\n",
2291 col
, dd
->ioaccel_handle
,
2292 dd
->xor_mult
[0], dd
->xor_mult
[1]);
2297 static void hpsa_debug_map_buff(__attribute__((unused
)) struct ctlr_info
*h
,
2298 __attribute__((unused
)) int rc
,
2299 __attribute__((unused
)) struct raid_map_data
*map_buff
)
2304 static int hpsa_get_raid_map(struct ctlr_info
*h
,
2305 unsigned char *scsi3addr
, struct hpsa_scsi_dev_t
*this_device
)
2308 struct CommandList
*c
;
2309 struct ErrorInfo
*ei
;
2311 c
= cmd_special_alloc(h
);
2313 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2316 if (fill_cmd(c
, HPSA_GET_RAID_MAP
, h
, &this_device
->raid_map
,
2317 sizeof(this_device
->raid_map
), 0,
2318 scsi3addr
, TYPE_CMD
)) {
2319 dev_warn(&h
->pdev
->dev
, "Out of memory in hpsa_get_raid_map()\n");
2320 cmd_special_free(h
, c
);
2323 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2325 if (ei
->CommandStatus
!= 0 && ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2326 hpsa_scsi_interpret_error(h
, c
);
2327 cmd_special_free(h
, c
);
2330 cmd_special_free(h
, c
);
2332 /* @todo in the future, dynamically allocate RAID map memory */
2333 if (le32_to_cpu(this_device
->raid_map
.structure_size
) >
2334 sizeof(this_device
->raid_map
)) {
2335 dev_warn(&h
->pdev
->dev
, "RAID map size is too large!\n");
2338 hpsa_debug_map_buff(h
, rc
, &this_device
->raid_map
);
2342 static int hpsa_vpd_page_supported(struct ctlr_info
*h
,
2343 unsigned char scsi3addr
[], u8 page
)
2348 unsigned char *buf
, bufsize
;
2350 buf
= kzalloc(256, GFP_KERNEL
);
2354 /* Get the size of the page list first */
2355 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2356 VPD_PAGE
| HPSA_VPD_SUPPORTED_PAGES
,
2357 buf
, HPSA_VPD_HEADER_SZ
);
2359 goto exit_unsupported
;
2361 if ((pages
+ HPSA_VPD_HEADER_SZ
) <= 255)
2362 bufsize
= pages
+ HPSA_VPD_HEADER_SZ
;
2366 /* Get the whole VPD page list */
2367 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2368 VPD_PAGE
| HPSA_VPD_SUPPORTED_PAGES
,
2371 goto exit_unsupported
;
2374 for (i
= 1; i
<= pages
; i
++)
2375 if (buf
[3 + i
] == page
)
2376 goto exit_supported
;
2385 static void hpsa_get_ioaccel_status(struct ctlr_info
*h
,
2386 unsigned char *scsi3addr
, struct hpsa_scsi_dev_t
*this_device
)
2392 this_device
->offload_config
= 0;
2393 this_device
->offload_enabled
= 0;
2395 buf
= kzalloc(64, GFP_KERNEL
);
2398 if (!hpsa_vpd_page_supported(h
, scsi3addr
, HPSA_VPD_LV_IOACCEL_STATUS
))
2400 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
,
2401 VPD_PAGE
| HPSA_VPD_LV_IOACCEL_STATUS
, buf
, 64);
2405 #define IOACCEL_STATUS_BYTE 4
2406 #define OFFLOAD_CONFIGURED_BIT 0x01
2407 #define OFFLOAD_ENABLED_BIT 0x02
2408 ioaccel_status
= buf
[IOACCEL_STATUS_BYTE
];
2409 this_device
->offload_config
=
2410 !!(ioaccel_status
& OFFLOAD_CONFIGURED_BIT
);
2411 if (this_device
->offload_config
) {
2412 this_device
->offload_enabled
=
2413 !!(ioaccel_status
& OFFLOAD_ENABLED_BIT
);
2414 if (hpsa_get_raid_map(h
, scsi3addr
, this_device
))
2415 this_device
->offload_enabled
= 0;
2422 /* Get the device id from inquiry page 0x83 */
2423 static int hpsa_get_device_id(struct ctlr_info
*h
, unsigned char *scsi3addr
,
2424 unsigned char *device_id
, int buflen
)
2431 buf
= kzalloc(64, GFP_KERNEL
);
2434 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| 0x83, buf
, 64);
2436 memcpy(device_id
, &buf
[8], buflen
);
2441 static int hpsa_scsi_do_report_luns(struct ctlr_info
*h
, int logical
,
2442 struct ReportLUNdata
*buf
, int bufsize
,
2443 int extended_response
)
2446 struct CommandList
*c
;
2447 unsigned char scsi3addr
[8];
2448 struct ErrorInfo
*ei
;
2450 c
= cmd_special_alloc(h
);
2451 if (c
== NULL
) { /* trouble... */
2452 dev_err(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
2455 /* address the controller */
2456 memset(scsi3addr
, 0, sizeof(scsi3addr
));
2457 if (fill_cmd(c
, logical
? HPSA_REPORT_LOG
: HPSA_REPORT_PHYS
, h
,
2458 buf
, bufsize
, 0, scsi3addr
, TYPE_CMD
)) {
2462 if (extended_response
)
2463 c
->Request
.CDB
[1] = extended_response
;
2464 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_FROMDEVICE
);
2466 if (ei
->CommandStatus
!= 0 &&
2467 ei
->CommandStatus
!= CMD_DATA_UNDERRUN
) {
2468 hpsa_scsi_interpret_error(h
, c
);
2471 if (buf
->extended_response_flag
!= extended_response
) {
2472 dev_err(&h
->pdev
->dev
,
2473 "report luns requested format %u, got %u\n",
2475 buf
->extended_response_flag
);
2480 cmd_special_free(h
, c
);
2484 static inline int hpsa_scsi_do_report_phys_luns(struct ctlr_info
*h
,
2485 struct ReportLUNdata
*buf
,
2486 int bufsize
, int extended_response
)
2488 return hpsa_scsi_do_report_luns(h
, 0, buf
, bufsize
, extended_response
);
2491 static inline int hpsa_scsi_do_report_log_luns(struct ctlr_info
*h
,
2492 struct ReportLUNdata
*buf
, int bufsize
)
2494 return hpsa_scsi_do_report_luns(h
, 1, buf
, bufsize
, 0);
2497 static inline void hpsa_set_bus_target_lun(struct hpsa_scsi_dev_t
*device
,
2498 int bus
, int target
, int lun
)
2501 device
->target
= target
;
2505 /* Use VPD inquiry to get details of volume status */
2506 static int hpsa_get_volume_status(struct ctlr_info
*h
,
2507 unsigned char scsi3addr
[])
2514 buf
= kzalloc(64, GFP_KERNEL
);
2516 return HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2518 /* Does controller have VPD for logical volume status? */
2519 if (!hpsa_vpd_page_supported(h
, scsi3addr
, HPSA_VPD_LV_STATUS
))
2522 /* Get the size of the VPD return buffer */
2523 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| HPSA_VPD_LV_STATUS
,
2524 buf
, HPSA_VPD_HEADER_SZ
);
2529 /* Now get the whole VPD buffer */
2530 rc
= hpsa_scsi_do_inquiry(h
, scsi3addr
, VPD_PAGE
| HPSA_VPD_LV_STATUS
,
2531 buf
, size
+ HPSA_VPD_HEADER_SZ
);
2534 status
= buf
[4]; /* status byte */
2540 return HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2543 /* Determine offline status of a volume.
2546 * 0xff (offline for unknown reasons)
2547 * # (integer code indicating one of several NOT READY states
2548 * describing why a volume is to be kept offline)
2550 static int hpsa_volume_offline(struct ctlr_info
*h
,
2551 unsigned char scsi3addr
[])
2553 struct CommandList
*c
;
2554 unsigned char *sense
, sense_key
, asc
, ascq
;
2558 #define ASC_LUN_NOT_READY 0x04
2559 #define ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS 0x04
2560 #define ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ 0x02
2565 (void) fill_cmd(c
, TEST_UNIT_READY
, h
, NULL
, 0, 0, scsi3addr
, TYPE_CMD
);
2566 hpsa_scsi_do_simple_cmd_core(h
, c
);
2567 sense
= c
->err_info
->SenseInfo
;
2568 sense_key
= sense
[2];
2571 cmd_status
= c
->err_info
->CommandStatus
;
2572 scsi_status
= c
->err_info
->ScsiStatus
;
2574 /* Is the volume 'not ready'? */
2575 if (cmd_status
!= CMD_TARGET_STATUS
||
2576 scsi_status
!= SAM_STAT_CHECK_CONDITION
||
2577 sense_key
!= NOT_READY
||
2578 asc
!= ASC_LUN_NOT_READY
) {
2582 /* Determine the reason for not ready state */
2583 ldstat
= hpsa_get_volume_status(h
, scsi3addr
);
2585 /* Keep volume offline in certain cases: */
2587 case HPSA_LV_UNDERGOING_ERASE
:
2588 case HPSA_LV_UNDERGOING_RPI
:
2589 case HPSA_LV_PENDING_RPI
:
2590 case HPSA_LV_ENCRYPTED_NO_KEY
:
2591 case HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER
:
2592 case HPSA_LV_UNDERGOING_ENCRYPTION
:
2593 case HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING
:
2594 case HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER
:
2596 case HPSA_VPD_LV_STATUS_UNSUPPORTED
:
2597 /* If VPD status page isn't available,
2598 * use ASC/ASCQ to determine state
2600 if ((ascq
== ASCQ_LUN_NOT_READY_FORMAT_IN_PROGRESS
) ||
2601 (ascq
== ASCQ_LUN_NOT_READY_INITIALIZING_CMD_REQ
))
2610 static int hpsa_update_device_info(struct ctlr_info
*h
,
2611 unsigned char scsi3addr
[], struct hpsa_scsi_dev_t
*this_device
,
2612 unsigned char *is_OBDR_device
)
2615 #define OBDR_SIG_OFFSET 43
2616 #define OBDR_TAPE_SIG "$DR-10"
2617 #define OBDR_SIG_LEN (sizeof(OBDR_TAPE_SIG) - 1)
2618 #define OBDR_TAPE_INQ_SIZE (OBDR_SIG_OFFSET + OBDR_SIG_LEN)
2620 unsigned char *inq_buff
;
2621 unsigned char *obdr_sig
;
2623 inq_buff
= kzalloc(OBDR_TAPE_INQ_SIZE
, GFP_KERNEL
);
2627 /* Do an inquiry to the device to see what it is. */
2628 if (hpsa_scsi_do_inquiry(h
, scsi3addr
, 0, inq_buff
,
2629 (unsigned char) OBDR_TAPE_INQ_SIZE
) != 0) {
2630 /* Inquiry failed (msg printed already) */
2631 dev_err(&h
->pdev
->dev
,
2632 "hpsa_update_device_info: inquiry failed\n");
2636 this_device
->devtype
= (inq_buff
[0] & 0x1f);
2637 memcpy(this_device
->scsi3addr
, scsi3addr
, 8);
2638 memcpy(this_device
->vendor
, &inq_buff
[8],
2639 sizeof(this_device
->vendor
));
2640 memcpy(this_device
->model
, &inq_buff
[16],
2641 sizeof(this_device
->model
));
2642 memset(this_device
->device_id
, 0,
2643 sizeof(this_device
->device_id
));
2644 hpsa_get_device_id(h
, scsi3addr
, this_device
->device_id
,
2645 sizeof(this_device
->device_id
));
2647 if (this_device
->devtype
== TYPE_DISK
&&
2648 is_logical_dev_addr_mode(scsi3addr
)) {
2651 hpsa_get_raid_level(h
, scsi3addr
, &this_device
->raid_level
);
2652 if (h
->fw_support
& MISC_FW_RAID_OFFLOAD_BASIC
)
2653 hpsa_get_ioaccel_status(h
, scsi3addr
, this_device
);
2654 volume_offline
= hpsa_volume_offline(h
, scsi3addr
);
2655 if (volume_offline
< 0 || volume_offline
> 0xff)
2656 volume_offline
= HPSA_VPD_LV_STATUS_UNSUPPORTED
;
2657 this_device
->volume_offline
= volume_offline
& 0xff;
2659 this_device
->raid_level
= RAID_UNKNOWN
;
2660 this_device
->offload_config
= 0;
2661 this_device
->offload_enabled
= 0;
2662 this_device
->volume_offline
= 0;
2665 if (is_OBDR_device
) {
2666 /* See if this is a One-Button-Disaster-Recovery device
2667 * by looking for "$DR-10" at offset 43 in inquiry data.
2669 obdr_sig
= &inq_buff
[OBDR_SIG_OFFSET
];
2670 *is_OBDR_device
= (this_device
->devtype
== TYPE_ROM
&&
2671 strncmp(obdr_sig
, OBDR_TAPE_SIG
,
2672 OBDR_SIG_LEN
) == 0);
2683 static unsigned char *ext_target_model
[] = {
2693 static int is_ext_target(struct ctlr_info
*h
, struct hpsa_scsi_dev_t
*device
)
2697 for (i
= 0; ext_target_model
[i
]; i
++)
2698 if (strncmp(device
->model
, ext_target_model
[i
],
2699 strlen(ext_target_model
[i
])) == 0)
2704 /* Helper function to assign bus, target, lun mapping of devices.
2705 * Puts non-external target logical volumes on bus 0, external target logical
2706 * volumes on bus 1, physical devices on bus 2. and the hba on bus 3.
2707 * Logical drive target and lun are assigned at this time, but
2708 * physical device lun and target assignment are deferred (assigned
2709 * in hpsa_find_target_lun, called by hpsa_scsi_add_entry.)
2711 static void figure_bus_target_lun(struct ctlr_info
*h
,
2712 u8
*lunaddrbytes
, struct hpsa_scsi_dev_t
*device
)
2714 u32 lunid
= le32_to_cpu(*((__le32
*) lunaddrbytes
));
2716 if (!is_logical_dev_addr_mode(lunaddrbytes
)) {
2717 /* physical device, target and lun filled in later */
2718 if (is_hba_lunid(lunaddrbytes
))
2719 hpsa_set_bus_target_lun(device
, 3, 0, lunid
& 0x3fff);
2721 /* defer target, lun assignment for physical devices */
2722 hpsa_set_bus_target_lun(device
, 2, -1, -1);
2725 /* It's a logical device */
2726 if (is_ext_target(h
, device
)) {
2727 /* external target way, put logicals on bus 1
2728 * and match target/lun numbers box
2729 * reports, other smart array, bus 0, target 0, match lunid
2731 hpsa_set_bus_target_lun(device
,
2732 1, (lunid
>> 16) & 0x3fff, lunid
& 0x00ff);
2735 hpsa_set_bus_target_lun(device
, 0, 0, lunid
& 0x3fff);
2739 * If there is no lun 0 on a target, linux won't find any devices.
2740 * For the external targets (arrays), we have to manually detect the enclosure
2741 * which is at lun zero, as CCISS_REPORT_PHYSICAL_LUNS doesn't report
2742 * it for some reason. *tmpdevice is the target we're adding,
2743 * this_device is a pointer into the current element of currentsd[]
2744 * that we're building up in update_scsi_devices(), below.
2745 * lunzerobits is a bitmap that tracks which targets already have a
2747 * Returns 1 if an enclosure was added, 0 if not.
2749 static int add_ext_target_dev(struct ctlr_info
*h
,
2750 struct hpsa_scsi_dev_t
*tmpdevice
,
2751 struct hpsa_scsi_dev_t
*this_device
, u8
*lunaddrbytes
,
2752 unsigned long lunzerobits
[], int *n_ext_target_devs
)
2754 unsigned char scsi3addr
[8];
2756 if (test_bit(tmpdevice
->target
, lunzerobits
))
2757 return 0; /* There is already a lun 0 on this target. */
2759 if (!is_logical_dev_addr_mode(lunaddrbytes
))
2760 return 0; /* It's the logical targets that may lack lun 0. */
2762 if (!is_ext_target(h
, tmpdevice
))
2763 return 0; /* Only external target devices have this problem. */
2765 if (tmpdevice
->lun
== 0) /* if lun is 0, then we have a lun 0. */
2768 memset(scsi3addr
, 0, 8);
2769 scsi3addr
[3] = tmpdevice
->target
;
2770 if (is_hba_lunid(scsi3addr
))
2771 return 0; /* Don't add the RAID controller here. */
2773 if (is_scsi_rev_5(h
))
2774 return 0; /* p1210m doesn't need to do this. */
2776 if (*n_ext_target_devs
>= MAX_EXT_TARGETS
) {
2777 dev_warn(&h
->pdev
->dev
, "Maximum number of external "
2778 "target devices exceeded. Check your hardware "
2783 if (hpsa_update_device_info(h
, scsi3addr
, this_device
, NULL
))
2785 (*n_ext_target_devs
)++;
2786 hpsa_set_bus_target_lun(this_device
,
2787 tmpdevice
->bus
, tmpdevice
->target
, 0);
2788 set_bit(tmpdevice
->target
, lunzerobits
);
2793 * Get address of physical disk used for an ioaccel2 mode command:
2794 * 1. Extract ioaccel2 handle from the command.
2795 * 2. Find a matching ioaccel2 handle from list of physical disks.
2797 * 1 and set scsi3addr to address of matching physical
2798 * 0 if no matching physical disk was found.
2800 static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info
*h
,
2801 struct CommandList
*ioaccel2_cmd_to_abort
, unsigned char *scsi3addr
)
2803 struct ReportExtendedLUNdata
*physicals
= NULL
;
2804 int responsesize
= 24; /* size of physical extended response */
2805 int extended
= 2; /* flag forces reporting 'other dev info'. */
2806 int reportsize
= sizeof(*physicals
) + HPSA_MAX_PHYS_LUN
* responsesize
;
2807 u32 nphysicals
= 0; /* number of reported physical devs */
2808 int found
= 0; /* found match (1) or not (0) */
2809 u32 find
; /* handle we need to match */
2811 struct scsi_cmnd
*scmd
; /* scsi command within request being aborted */
2812 struct hpsa_scsi_dev_t
*d
; /* device of request being aborted */
2813 struct io_accel2_cmd
*c2a
; /* ioaccel2 command to abort */
2814 u32 it_nexus
; /* 4 byte device handle for the ioaccel2 cmd */
2815 u32 scsi_nexus
; /* 4 byte device handle for the ioaccel2 cmd */
2817 if (ioaccel2_cmd_to_abort
->cmd_type
!= CMD_IOACCEL2
)
2818 return 0; /* no match */
2820 /* point to the ioaccel2 device handle */
2821 c2a
= &h
->ioaccel2_cmd_pool
[ioaccel2_cmd_to_abort
->cmdindex
];
2823 return 0; /* no match */
2825 scmd
= (struct scsi_cmnd
*) ioaccel2_cmd_to_abort
->scsi_cmd
;
2827 return 0; /* no match */
2829 d
= scmd
->device
->hostdata
;
2831 return 0; /* no match */
2833 it_nexus
= cpu_to_le32((u32
) d
->ioaccel_handle
);
2834 scsi_nexus
= cpu_to_le32((u32
) c2a
->scsi_nexus
);
2835 find
= c2a
->scsi_nexus
;
2837 if (h
->raid_offload_debug
> 0)
2838 dev_info(&h
->pdev
->dev
,
2839 "%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",
2840 __func__
, scsi_nexus
,
2841 d
->device_id
[0], d
->device_id
[1], d
->device_id
[2],
2842 d
->device_id
[3], d
->device_id
[4], d
->device_id
[5],
2843 d
->device_id
[6], d
->device_id
[7], d
->device_id
[8],
2844 d
->device_id
[9], d
->device_id
[10], d
->device_id
[11],
2845 d
->device_id
[12], d
->device_id
[13], d
->device_id
[14],
2848 /* Get the list of physical devices */
2849 physicals
= kzalloc(reportsize
, GFP_KERNEL
);
2850 if (physicals
== NULL
)
2852 if (hpsa_scsi_do_report_phys_luns(h
, (struct ReportLUNdata
*) physicals
,
2853 reportsize
, extended
)) {
2854 dev_err(&h
->pdev
->dev
,
2855 "Can't lookup %s device handle: report physical LUNs failed.\n",
2856 "HP SSD Smart Path");
2860 nphysicals
= be32_to_cpu(*((__be32
*)physicals
->LUNListLength
)) /
2863 /* find ioaccel2 handle in list of physicals: */
2864 for (i
= 0; i
< nphysicals
; i
++) {
2865 struct ext_report_lun_entry
*entry
= &physicals
->LUN
[i
];
2867 /* handle is in bytes 28-31 of each lun */
2868 if (entry
->ioaccel_handle
!= find
)
2869 continue; /* didn't match */
2871 memcpy(scsi3addr
, entry
->lunid
, 8);
2872 if (h
->raid_offload_debug
> 0)
2873 dev_info(&h
->pdev
->dev
,
2874 "%s: Searched h=0x%08x, Found h=0x%08x, scsiaddr 0x%8phN\n",
2876 entry
->ioaccel_handle
, scsi3addr
);
2877 break; /* found it */
2888 * Do CISS_REPORT_PHYS and CISS_REPORT_LOG. Data is returned in physdev,
2889 * logdev. The number of luns in physdev and logdev are returned in
2890 * *nphysicals and *nlogicals, respectively.
2891 * Returns 0 on success, -1 otherwise.
2893 static int hpsa_gather_lun_info(struct ctlr_info
*h
,
2895 struct ReportLUNdata
*physdev
, u32
*nphysicals
, int *physical_mode
,
2896 struct ReportLUNdata
*logdev
, u32
*nlogicals
)
2898 int physical_entry_size
= 8;
2902 /* For I/O accelerator mode we need to read physical device handles */
2903 if (h
->transMethod
& CFGTBL_Trans_io_accel1
||
2904 h
->transMethod
& CFGTBL_Trans_io_accel2
) {
2905 *physical_mode
= HPSA_REPORT_PHYS_EXTENDED
;
2906 physical_entry_size
= 24;
2908 if (hpsa_scsi_do_report_phys_luns(h
, physdev
, reportlunsize
,
2910 dev_err(&h
->pdev
->dev
, "report physical LUNs failed.\n");
2913 *nphysicals
= be32_to_cpu(*((__be32
*)physdev
->LUNListLength
)) /
2914 physical_entry_size
;
2915 if (*nphysicals
> HPSA_MAX_PHYS_LUN
) {
2916 dev_warn(&h
->pdev
->dev
, "maximum physical LUNs (%d) exceeded."
2917 " %d LUNs ignored.\n", HPSA_MAX_PHYS_LUN
,
2918 *nphysicals
- HPSA_MAX_PHYS_LUN
);
2919 *nphysicals
= HPSA_MAX_PHYS_LUN
;
2921 if (hpsa_scsi_do_report_log_luns(h
, logdev
, reportlunsize
)) {
2922 dev_err(&h
->pdev
->dev
, "report logical LUNs failed.\n");
2925 *nlogicals
= be32_to_cpu(*((__be32
*) logdev
->LUNListLength
)) / 8;
2926 /* Reject Logicals in excess of our max capability. */
2927 if (*nlogicals
> HPSA_MAX_LUN
) {
2928 dev_warn(&h
->pdev
->dev
,
2929 "maximum logical LUNs (%d) exceeded. "
2930 "%d LUNs ignored.\n", HPSA_MAX_LUN
,
2931 *nlogicals
- HPSA_MAX_LUN
);
2932 *nlogicals
= HPSA_MAX_LUN
;
2934 if (*nlogicals
+ *nphysicals
> HPSA_MAX_PHYS_LUN
) {
2935 dev_warn(&h
->pdev
->dev
,
2936 "maximum logical + physical LUNs (%d) exceeded. "
2937 "%d LUNs ignored.\n", HPSA_MAX_PHYS_LUN
,
2938 *nphysicals
+ *nlogicals
- HPSA_MAX_PHYS_LUN
);
2939 *nlogicals
= HPSA_MAX_PHYS_LUN
- *nphysicals
;
2944 u8
*figure_lunaddrbytes(struct ctlr_info
*h
, int raid_ctlr_position
, int i
,
2945 int nphysicals
, int nlogicals
,
2946 struct ReportExtendedLUNdata
*physdev_list
,
2947 struct ReportLUNdata
*logdev_list
)
2949 /* Helper function, figure out where the LUN ID info is coming from
2950 * given index i, lists of physical and logical devices, where in
2951 * the list the raid controller is supposed to appear (first or last)
2954 int logicals_start
= nphysicals
+ (raid_ctlr_position
== 0);
2955 int last_device
= nphysicals
+ nlogicals
+ (raid_ctlr_position
== 0);
2957 if (i
== raid_ctlr_position
)
2958 return RAID_CTLR_LUNID
;
2960 if (i
< logicals_start
)
2961 return &physdev_list
->LUN
[i
-
2962 (raid_ctlr_position
== 0)].lunid
[0];
2964 if (i
< last_device
)
2965 return &logdev_list
->LUN
[i
- nphysicals
-
2966 (raid_ctlr_position
== 0)][0];
2971 static int hpsa_hba_mode_enabled(struct ctlr_info
*h
)
2974 int hba_mode_enabled
;
2975 struct bmic_controller_parameters
*ctlr_params
;
2976 ctlr_params
= kzalloc(sizeof(struct bmic_controller_parameters
),
2981 rc
= hpsa_bmic_ctrl_mode_sense(h
, RAID_CTLR_LUNID
, 0, ctlr_params
,
2982 sizeof(struct bmic_controller_parameters
));
2989 ((ctlr_params
->nvram_flags
& HBA_MODE_ENABLED_FLAG
) != 0);
2991 return hba_mode_enabled
;
2994 static void hpsa_update_scsi_devices(struct ctlr_info
*h
, int hostno
)
2996 /* the idea here is we could get notified
2997 * that some devices have changed, so we do a report
2998 * physical luns and report logical luns cmd, and adjust
2999 * our list of devices accordingly.
3001 * The scsi3addr's of devices won't change so long as the
3002 * adapter is not reset. That means we can rescan and
3003 * tell which devices we already know about, vs. new
3004 * devices, vs. disappearing devices.
3006 struct ReportExtendedLUNdata
*physdev_list
= NULL
;
3007 struct ReportLUNdata
*logdev_list
= NULL
;
3010 int physical_mode
= 0;
3011 u32 ndev_allocated
= 0;
3012 struct hpsa_scsi_dev_t
**currentsd
, *this_device
, *tmpdevice
;
3014 int reportlunsize
= sizeof(*physdev_list
) + HPSA_MAX_PHYS_LUN
* 24;
3015 int i
, n_ext_target_devs
, ndevs_to_allocate
;
3016 int raid_ctlr_position
;
3017 int rescan_hba_mode
;
3018 DECLARE_BITMAP(lunzerobits
, MAX_EXT_TARGETS
);
3020 currentsd
= kzalloc(sizeof(*currentsd
) * HPSA_MAX_DEVICES
, GFP_KERNEL
);
3021 physdev_list
= kzalloc(reportlunsize
, GFP_KERNEL
);
3022 logdev_list
= kzalloc(reportlunsize
, GFP_KERNEL
);
3023 tmpdevice
= kzalloc(sizeof(*tmpdevice
), GFP_KERNEL
);
3025 if (!currentsd
|| !physdev_list
|| !logdev_list
|| !tmpdevice
) {
3026 dev_err(&h
->pdev
->dev
, "out of memory\n");
3029 memset(lunzerobits
, 0, sizeof(lunzerobits
));
3031 rescan_hba_mode
= hpsa_hba_mode_enabled(h
);
3032 if (rescan_hba_mode
< 0)
3035 if (!h
->hba_mode_enabled
&& rescan_hba_mode
)
3036 dev_warn(&h
->pdev
->dev
, "HBA mode enabled\n");
3037 else if (h
->hba_mode_enabled
&& !rescan_hba_mode
)
3038 dev_warn(&h
->pdev
->dev
, "HBA mode disabled\n");
3040 h
->hba_mode_enabled
= rescan_hba_mode
;
3042 if (hpsa_gather_lun_info(h
, reportlunsize
,
3043 (struct ReportLUNdata
*) physdev_list
, &nphysicals
,
3044 &physical_mode
, logdev_list
, &nlogicals
))
3047 /* We might see up to the maximum number of logical and physical disks
3048 * plus external target devices, and a device for the local RAID
3051 ndevs_to_allocate
= nphysicals
+ nlogicals
+ MAX_EXT_TARGETS
+ 1;
3053 /* Allocate the per device structures */
3054 for (i
= 0; i
< ndevs_to_allocate
; i
++) {
3055 if (i
>= HPSA_MAX_DEVICES
) {
3056 dev_warn(&h
->pdev
->dev
, "maximum devices (%d) exceeded."
3057 " %d devices ignored.\n", HPSA_MAX_DEVICES
,
3058 ndevs_to_allocate
- HPSA_MAX_DEVICES
);
3062 currentsd
[i
] = kzalloc(sizeof(*currentsd
[i
]), GFP_KERNEL
);
3063 if (!currentsd
[i
]) {
3064 dev_warn(&h
->pdev
->dev
, "out of memory at %s:%d\n",
3065 __FILE__
, __LINE__
);
3071 if (is_scsi_rev_5(h
))
3072 raid_ctlr_position
= 0;
3074 raid_ctlr_position
= nphysicals
+ nlogicals
;
3076 /* adjust our table of devices */
3077 n_ext_target_devs
= 0;
3078 for (i
= 0; i
< nphysicals
+ nlogicals
+ 1; i
++) {
3079 u8
*lunaddrbytes
, is_OBDR
= 0;
3081 /* Figure out where the LUN ID info is coming from */
3082 lunaddrbytes
= figure_lunaddrbytes(h
, raid_ctlr_position
,
3083 i
, nphysicals
, nlogicals
, physdev_list
, logdev_list
);
3084 /* skip masked physical devices. */
3085 if (lunaddrbytes
[3] & 0xC0 &&
3086 i
< nphysicals
+ (raid_ctlr_position
== 0))
3089 /* Get device type, vendor, model, device id */
3090 if (hpsa_update_device_info(h
, lunaddrbytes
, tmpdevice
,
3092 continue; /* skip it if we can't talk to it. */
3093 figure_bus_target_lun(h
, lunaddrbytes
, tmpdevice
);
3094 this_device
= currentsd
[ncurrent
];
3097 * For external target devices, we have to insert a LUN 0 which
3098 * doesn't show up in CCISS_REPORT_PHYSICAL data, but there
3099 * is nonetheless an enclosure device there. We have to
3100 * present that otherwise linux won't find anything if
3101 * there is no lun 0.
3103 if (add_ext_target_dev(h
, tmpdevice
, this_device
,
3104 lunaddrbytes
, lunzerobits
,
3105 &n_ext_target_devs
)) {
3107 this_device
= currentsd
[ncurrent
];
3110 *this_device
= *tmpdevice
;
3112 switch (this_device
->devtype
) {
3114 /* We don't *really* support actual CD-ROM devices,
3115 * just "One Button Disaster Recovery" tape drive
3116 * which temporarily pretends to be a CD-ROM drive.
3117 * So we check that the device is really an OBDR tape
3118 * device by checking for "$DR-10" in bytes 43-48 of
3125 if (h
->hba_mode_enabled
) {
3126 /* never use raid mapper in HBA mode */
3127 this_device
->offload_enabled
= 0;
3130 } else if (h
->acciopath_status
) {
3131 if (i
>= nphysicals
) {
3141 if (physical_mode
== HPSA_REPORT_PHYS_EXTENDED
) {
3142 memcpy(&this_device
->ioaccel_handle
,
3144 sizeof(this_device
->ioaccel_handle
));
3149 case TYPE_MEDIUM_CHANGER
:
3153 /* Only present the Smartarray HBA as a RAID controller.
3154 * If it's a RAID controller other than the HBA itself
3155 * (an external RAID controller, MSA500 or similar)
3158 if (!is_hba_lunid(lunaddrbytes
))
3165 if (ncurrent
>= HPSA_MAX_DEVICES
)
3168 adjust_hpsa_scsi_table(h
, hostno
, currentsd
, ncurrent
);
3171 for (i
= 0; i
< ndev_allocated
; i
++)
3172 kfree(currentsd
[i
]);
3174 kfree(physdev_list
);
3178 /* hpsa_scatter_gather takes a struct scsi_cmnd, (cmd), and does the pci
3179 * dma mapping and fills in the scatter gather entries of the
3182 static int hpsa_scatter_gather(struct ctlr_info
*h
,
3183 struct CommandList
*cp
,
3184 struct scsi_cmnd
*cmd
)
3187 struct scatterlist
*sg
;
3189 int use_sg
, i
, sg_index
, chained
;
3190 struct SGDescriptor
*curr_sg
;
3192 BUG_ON(scsi_sg_count(cmd
) > h
->maxsgentries
);
3194 use_sg
= scsi_dma_map(cmd
);
3199 goto sglist_finished
;
3204 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3205 if (i
== h
->max_cmd_sg_entries
- 1 &&
3206 use_sg
> h
->max_cmd_sg_entries
) {
3208 curr_sg
= h
->cmd_sg_list
[cp
->cmdindex
];
3211 addr64
= (u64
) sg_dma_address(sg
);
3212 len
= sg_dma_len(sg
);
3213 curr_sg
->Addr
.lower
= (u32
) (addr64
& 0x0FFFFFFFFULL
);
3214 curr_sg
->Addr
.upper
= (u32
) ((addr64
>> 32) & 0x0FFFFFFFFULL
);
3216 curr_sg
->Ext
= (i
< scsi_sg_count(cmd
) - 1) ? 0 : HPSA_SG_LAST
;
3220 if (use_sg
+ chained
> h
->maxSG
)
3221 h
->maxSG
= use_sg
+ chained
;
3224 cp
->Header
.SGList
= h
->max_cmd_sg_entries
;
3225 cp
->Header
.SGTotal
= (u16
) (use_sg
+ 1);
3226 if (hpsa_map_sg_chain_block(h
, cp
)) {
3227 scsi_dma_unmap(cmd
);
3235 cp
->Header
.SGList
= (u8
) use_sg
; /* no. SGs contig in this cmd */
3236 cp
->Header
.SGTotal
= (u16
) use_sg
; /* total sgs in this cmd list */
3240 #define IO_ACCEL_INELIGIBLE (1)
3241 static int fixup_ioaccel_cdb(u8
*cdb
, int *cdb_len
)
3247 /* Perform some CDB fixups if needed using 10 byte reads/writes only */
3254 if (*cdb_len
== 6) {
3255 block
= (((u32
) cdb
[2]) << 8) | cdb
[3];
3258 BUG_ON(*cdb_len
!= 12);
3259 block
= (((u32
) cdb
[2]) << 24) |
3260 (((u32
) cdb
[3]) << 16) |
3261 (((u32
) cdb
[4]) << 8) |
3264 (((u32
) cdb
[6]) << 24) |
3265 (((u32
) cdb
[7]) << 16) |
3266 (((u32
) cdb
[8]) << 8) |
3269 if (block_cnt
> 0xffff)
3270 return IO_ACCEL_INELIGIBLE
;
3272 cdb
[0] = is_write
? WRITE_10
: READ_10
;
3274 cdb
[2] = (u8
) (block
>> 24);
3275 cdb
[3] = (u8
) (block
>> 16);
3276 cdb
[4] = (u8
) (block
>> 8);
3277 cdb
[5] = (u8
) (block
);
3279 cdb
[7] = (u8
) (block_cnt
>> 8);
3280 cdb
[8] = (u8
) (block_cnt
);
3288 static int hpsa_scsi_ioaccel1_queue_command(struct ctlr_info
*h
,
3289 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3292 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3293 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[c
->cmdindex
];
3295 unsigned int total_len
= 0;
3296 struct scatterlist
*sg
;
3299 struct SGDescriptor
*curr_sg
;
3300 u32 control
= IOACCEL1_CONTROL_SIMPLEQUEUE
;
3302 /* TODO: implement chaining support */
3303 if (scsi_sg_count(cmd
) > h
->ioaccel_maxsg
)
3304 return IO_ACCEL_INELIGIBLE
;
3306 BUG_ON(cmd
->cmd_len
> IOACCEL1_IOFLAGS_CDBLEN_MAX
);
3308 if (fixup_ioaccel_cdb(cdb
, &cdb_len
))
3309 return IO_ACCEL_INELIGIBLE
;
3311 c
->cmd_type
= CMD_IOACCEL1
;
3313 /* Adjust the DMA address to point to the accelerated command buffer */
3314 c
->busaddr
= (u32
) h
->ioaccel_cmd_pool_dhandle
+
3315 (c
->cmdindex
* sizeof(*cp
));
3316 BUG_ON(c
->busaddr
& 0x0000007F);
3318 use_sg
= scsi_dma_map(cmd
);
3324 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3325 addr64
= (u64
) sg_dma_address(sg
);
3326 len
= sg_dma_len(sg
);
3328 curr_sg
->Addr
.lower
= (u32
) (addr64
& 0x0FFFFFFFFULL
);
3329 curr_sg
->Addr
.upper
=
3330 (u32
) ((addr64
>> 32) & 0x0FFFFFFFFULL
);
3333 if (i
== (scsi_sg_count(cmd
) - 1))
3334 curr_sg
->Ext
= HPSA_SG_LAST
;
3336 curr_sg
->Ext
= 0; /* we are not chaining */
3340 switch (cmd
->sc_data_direction
) {
3342 control
|= IOACCEL1_CONTROL_DATA_OUT
;
3344 case DMA_FROM_DEVICE
:
3345 control
|= IOACCEL1_CONTROL_DATA_IN
;
3348 control
|= IOACCEL1_CONTROL_NODATAXFER
;
3351 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
3352 cmd
->sc_data_direction
);
3357 control
|= IOACCEL1_CONTROL_NODATAXFER
;
3360 c
->Header
.SGList
= use_sg
;
3361 /* Fill out the command structure to submit */
3362 cp
->dev_handle
= ioaccel_handle
& 0xFFFF;
3363 cp
->transfer_len
= total_len
;
3364 cp
->io_flags
= IOACCEL1_IOFLAGS_IO_REQ
|
3365 (cdb_len
& IOACCEL1_IOFLAGS_CDBLEN_MASK
);
3366 cp
->control
= control
;
3367 memcpy(cp
->CDB
, cdb
, cdb_len
);
3368 memcpy(cp
->CISS_LUN
, scsi3addr
, 8);
3369 /* Tag was already set at init time. */
3370 enqueue_cmd_and_start_io(h
, c
);
3375 * Queue a command directly to a device behind the controller using the
3376 * I/O accelerator path.
3378 static int hpsa_scsi_ioaccel_direct_map(struct ctlr_info
*h
,
3379 struct CommandList
*c
)
3381 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3382 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3384 return hpsa_scsi_ioaccel_queue_command(h
, c
, dev
->ioaccel_handle
,
3385 cmd
->cmnd
, cmd
->cmd_len
, dev
->scsi3addr
);
3389 * Set encryption parameters for the ioaccel2 request
3391 static void set_encrypt_ioaccel2(struct ctlr_info
*h
,
3392 struct CommandList
*c
, struct io_accel2_cmd
*cp
)
3394 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3395 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3396 struct raid_map_data
*map
= &dev
->raid_map
;
3399 BUG_ON(!(dev
->offload_config
&& dev
->offload_enabled
));
3401 /* Are we doing encryption on this device */
3402 if (!(map
->flags
& RAID_MAP_FLAG_ENCRYPT_ON
))
3404 /* Set the data encryption key index. */
3405 cp
->dekindex
= map
->dekindex
;
3407 /* Set the encryption enable flag, encoded into direction field. */
3408 cp
->direction
|= IOACCEL2_DIRECTION_ENCRYPT_MASK
;
3410 /* Set encryption tweak values based on logical block address
3411 * If block size is 512, tweak value is LBA.
3412 * For other block sizes, tweak is (LBA * block size)/ 512)
3414 switch (cmd
->cmnd
[0]) {
3415 /* Required? 6-byte cdbs eliminated by fixup_ioaccel_cdb */
3418 if (map
->volume_blk_size
== 512) {
3420 (((u32
) cmd
->cmnd
[2]) << 8) |
3422 cp
->tweak_upper
= 0;
3425 (((u64
) cmd
->cmnd
[2]) << 8) |
3427 first_block
= (first_block
* map
->volume_blk_size
)/512;
3428 cp
->tweak_lower
= (u32
)first_block
;
3429 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3434 if (map
->volume_blk_size
== 512) {
3436 (((u32
) cmd
->cmnd
[2]) << 24) |
3437 (((u32
) cmd
->cmnd
[3]) << 16) |
3438 (((u32
) cmd
->cmnd
[4]) << 8) |
3440 cp
->tweak_upper
= 0;
3443 (((u64
) cmd
->cmnd
[2]) << 24) |
3444 (((u64
) cmd
->cmnd
[3]) << 16) |
3445 (((u64
) cmd
->cmnd
[4]) << 8) |
3447 first_block
= (first_block
* map
->volume_blk_size
)/512;
3448 cp
->tweak_lower
= (u32
)first_block
;
3449 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3452 /* Required? 12-byte cdbs eliminated by fixup_ioaccel_cdb */
3455 if (map
->volume_blk_size
== 512) {
3457 (((u32
) cmd
->cmnd
[2]) << 24) |
3458 (((u32
) cmd
->cmnd
[3]) << 16) |
3459 (((u32
) cmd
->cmnd
[4]) << 8) |
3461 cp
->tweak_upper
= 0;
3464 (((u64
) cmd
->cmnd
[2]) << 24) |
3465 (((u64
) cmd
->cmnd
[3]) << 16) |
3466 (((u64
) cmd
->cmnd
[4]) << 8) |
3468 first_block
= (first_block
* map
->volume_blk_size
)/512;
3469 cp
->tweak_lower
= (u32
)first_block
;
3470 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3475 if (map
->volume_blk_size
== 512) {
3477 (((u32
) cmd
->cmnd
[6]) << 24) |
3478 (((u32
) cmd
->cmnd
[7]) << 16) |
3479 (((u32
) cmd
->cmnd
[8]) << 8) |
3482 (((u32
) cmd
->cmnd
[2]) << 24) |
3483 (((u32
) cmd
->cmnd
[3]) << 16) |
3484 (((u32
) cmd
->cmnd
[4]) << 8) |
3488 (((u64
) cmd
->cmnd
[2]) << 56) |
3489 (((u64
) cmd
->cmnd
[3]) << 48) |
3490 (((u64
) cmd
->cmnd
[4]) << 40) |
3491 (((u64
) cmd
->cmnd
[5]) << 32) |
3492 (((u64
) cmd
->cmnd
[6]) << 24) |
3493 (((u64
) cmd
->cmnd
[7]) << 16) |
3494 (((u64
) cmd
->cmnd
[8]) << 8) |
3496 first_block
= (first_block
* map
->volume_blk_size
)/512;
3497 cp
->tweak_lower
= (u32
)first_block
;
3498 cp
->tweak_upper
= (u32
)(first_block
>> 32);
3502 dev_err(&h
->pdev
->dev
,
3503 "ERROR: %s: IOACCEL request CDB size not supported for encryption\n",
3510 static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info
*h
,
3511 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3514 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3515 struct io_accel2_cmd
*cp
= &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
3516 struct ioaccel2_sg_element
*curr_sg
;
3518 struct scatterlist
*sg
;
3523 if (scsi_sg_count(cmd
) > h
->ioaccel_maxsg
)
3524 return IO_ACCEL_INELIGIBLE
;
3526 if (fixup_ioaccel_cdb(cdb
, &cdb_len
))
3527 return IO_ACCEL_INELIGIBLE
;
3528 c
->cmd_type
= CMD_IOACCEL2
;
3529 /* Adjust the DMA address to point to the accelerated command buffer */
3530 c
->busaddr
= (u32
) h
->ioaccel2_cmd_pool_dhandle
+
3531 (c
->cmdindex
* sizeof(*cp
));
3532 BUG_ON(c
->busaddr
& 0x0000007F);
3534 memset(cp
, 0, sizeof(*cp
));
3535 cp
->IU_type
= IOACCEL2_IU_TYPE
;
3537 use_sg
= scsi_dma_map(cmd
);
3542 BUG_ON(use_sg
> IOACCEL2_MAXSGENTRIES
);
3544 scsi_for_each_sg(cmd
, sg
, use_sg
, i
) {
3545 addr64
= (u64
) sg_dma_address(sg
);
3546 len
= sg_dma_len(sg
);
3548 curr_sg
->address
= cpu_to_le64(addr64
);
3549 curr_sg
->length
= cpu_to_le32(len
);
3550 curr_sg
->reserved
[0] = 0;
3551 curr_sg
->reserved
[1] = 0;
3552 curr_sg
->reserved
[2] = 0;
3553 curr_sg
->chain_indicator
= 0;
3557 switch (cmd
->sc_data_direction
) {
3559 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3560 cp
->direction
|= IOACCEL2_DIR_DATA_OUT
;
3562 case DMA_FROM_DEVICE
:
3563 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3564 cp
->direction
|= IOACCEL2_DIR_DATA_IN
;
3567 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3568 cp
->direction
|= IOACCEL2_DIR_NO_DATA
;
3571 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
3572 cmd
->sc_data_direction
);
3577 cp
->direction
&= ~IOACCEL2_DIRECTION_MASK
;
3578 cp
->direction
|= IOACCEL2_DIR_NO_DATA
;
3581 /* Set encryption parameters, if necessary */
3582 set_encrypt_ioaccel2(h
, c
, cp
);
3584 cp
->scsi_nexus
= ioaccel_handle
;
3585 cp
->Tag
= (c
->cmdindex
<< DIRECT_LOOKUP_SHIFT
) |
3587 memcpy(cp
->cdb
, cdb
, sizeof(cp
->cdb
));
3589 /* fill in sg elements */
3590 cp
->sg_count
= (u8
) use_sg
;
3592 cp
->data_len
= cpu_to_le32(total_len
);
3593 cp
->err_ptr
= cpu_to_le64(c
->busaddr
+
3594 offsetof(struct io_accel2_cmd
, error_data
));
3595 cp
->err_len
= cpu_to_le32((u32
) sizeof(cp
->error_data
));
3597 enqueue_cmd_and_start_io(h
, c
);
3602 * Queue a command to the correct I/O accelerator path.
3604 static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info
*h
,
3605 struct CommandList
*c
, u32 ioaccel_handle
, u8
*cdb
, int cdb_len
,
3608 if (h
->transMethod
& CFGTBL_Trans_io_accel1
)
3609 return hpsa_scsi_ioaccel1_queue_command(h
, c
, ioaccel_handle
,
3610 cdb
, cdb_len
, scsi3addr
);
3612 return hpsa_scsi_ioaccel2_queue_command(h
, c
, ioaccel_handle
,
3613 cdb
, cdb_len
, scsi3addr
);
3616 static void raid_map_helper(struct raid_map_data
*map
,
3617 int offload_to_mirror
, u32
*map_index
, u32
*current_group
)
3619 if (offload_to_mirror
== 0) {
3620 /* use physical disk in the first mirrored group. */
3621 *map_index
%= map
->data_disks_per_row
;
3625 /* determine mirror group that *map_index indicates */
3626 *current_group
= *map_index
/ map
->data_disks_per_row
;
3627 if (offload_to_mirror
== *current_group
)
3629 if (*current_group
< (map
->layout_map_count
- 1)) {
3630 /* select map index from next group */
3631 *map_index
+= map
->data_disks_per_row
;
3634 /* select map index from first group */
3635 *map_index
%= map
->data_disks_per_row
;
3638 } while (offload_to_mirror
!= *current_group
);
3642 * Attempt to perform offload RAID mapping for a logical volume I/O.
3644 static int hpsa_scsi_ioaccel_raid_map(struct ctlr_info
*h
,
3645 struct CommandList
*c
)
3647 struct scsi_cmnd
*cmd
= c
->scsi_cmd
;
3648 struct hpsa_scsi_dev_t
*dev
= cmd
->device
->hostdata
;
3649 struct raid_map_data
*map
= &dev
->raid_map
;
3650 struct raid_map_disk_data
*dd
= &map
->data
[0];
3653 u64 first_block
, last_block
;
3656 u64 first_row
, last_row
;
3657 u32 first_row_offset
, last_row_offset
;
3658 u32 first_column
, last_column
;
3659 u64 r0_first_row
, r0_last_row
;
3660 u32 r5or6_blocks_per_row
;
3661 u64 r5or6_first_row
, r5or6_last_row
;
3662 u32 r5or6_first_row_offset
, r5or6_last_row_offset
;
3663 u32 r5or6_first_column
, r5or6_last_column
;
3664 u32 total_disks_per_row
;
3666 u32 first_group
, last_group
, current_group
;
3673 #if BITS_PER_LONG == 32
3676 int offload_to_mirror
;
3678 BUG_ON(!(dev
->offload_config
&& dev
->offload_enabled
));
3680 /* check for valid opcode, get LBA and block count */
3681 switch (cmd
->cmnd
[0]) {
3686 (((u64
) cmd
->cmnd
[2]) << 8) |
3688 block_cnt
= cmd
->cmnd
[4];
3694 (((u64
) cmd
->cmnd
[2]) << 24) |
3695 (((u64
) cmd
->cmnd
[3]) << 16) |
3696 (((u64
) cmd
->cmnd
[4]) << 8) |
3699 (((u32
) cmd
->cmnd
[7]) << 8) |
3706 (((u64
) cmd
->cmnd
[2]) << 24) |
3707 (((u64
) cmd
->cmnd
[3]) << 16) |
3708 (((u64
) cmd
->cmnd
[4]) << 8) |
3711 (((u32
) cmd
->cmnd
[6]) << 24) |
3712 (((u32
) cmd
->cmnd
[7]) << 16) |
3713 (((u32
) cmd
->cmnd
[8]) << 8) |
3720 (((u64
) cmd
->cmnd
[2]) << 56) |
3721 (((u64
) cmd
->cmnd
[3]) << 48) |
3722 (((u64
) cmd
->cmnd
[4]) << 40) |
3723 (((u64
) cmd
->cmnd
[5]) << 32) |
3724 (((u64
) cmd
->cmnd
[6]) << 24) |
3725 (((u64
) cmd
->cmnd
[7]) << 16) |
3726 (((u64
) cmd
->cmnd
[8]) << 8) |
3729 (((u32
) cmd
->cmnd
[10]) << 24) |
3730 (((u32
) cmd
->cmnd
[11]) << 16) |
3731 (((u32
) cmd
->cmnd
[12]) << 8) |
3735 return IO_ACCEL_INELIGIBLE
; /* process via normal I/O path */
3737 BUG_ON(block_cnt
== 0);
3738 last_block
= first_block
+ block_cnt
- 1;
3740 /* check for write to non-RAID-0 */
3741 if (is_write
&& dev
->raid_level
!= 0)
3742 return IO_ACCEL_INELIGIBLE
;
3744 /* check for invalid block or wraparound */
3745 if (last_block
>= map
->volume_blk_cnt
|| last_block
< first_block
)
3746 return IO_ACCEL_INELIGIBLE
;
3748 /* calculate stripe information for the request */
3749 blocks_per_row
= map
->data_disks_per_row
* map
->strip_size
;
3750 #if BITS_PER_LONG == 32
3751 tmpdiv
= first_block
;
3752 (void) do_div(tmpdiv
, blocks_per_row
);
3754 tmpdiv
= last_block
;
3755 (void) do_div(tmpdiv
, blocks_per_row
);
3757 first_row_offset
= (u32
) (first_block
- (first_row
* blocks_per_row
));
3758 last_row_offset
= (u32
) (last_block
- (last_row
* blocks_per_row
));
3759 tmpdiv
= first_row_offset
;
3760 (void) do_div(tmpdiv
, map
->strip_size
);
3761 first_column
= tmpdiv
;
3762 tmpdiv
= last_row_offset
;
3763 (void) do_div(tmpdiv
, map
->strip_size
);
3764 last_column
= tmpdiv
;
3766 first_row
= first_block
/ blocks_per_row
;
3767 last_row
= last_block
/ blocks_per_row
;
3768 first_row_offset
= (u32
) (first_block
- (first_row
* blocks_per_row
));
3769 last_row_offset
= (u32
) (last_block
- (last_row
* blocks_per_row
));
3770 first_column
= first_row_offset
/ map
->strip_size
;
3771 last_column
= last_row_offset
/ map
->strip_size
;
3774 /* if this isn't a single row/column then give to the controller */
3775 if ((first_row
!= last_row
) || (first_column
!= last_column
))
3776 return IO_ACCEL_INELIGIBLE
;
3778 /* proceeding with driver mapping */
3779 total_disks_per_row
= map
->data_disks_per_row
+
3780 map
->metadata_disks_per_row
;
3781 map_row
= ((u32
)(first_row
>> map
->parity_rotation_shift
)) %
3783 map_index
= (map_row
* total_disks_per_row
) + first_column
;
3785 switch (dev
->raid_level
) {
3787 break; /* nothing special to do */
3789 /* Handles load balance across RAID 1 members.
3790 * (2-drive R1 and R10 with even # of drives.)
3791 * Appropriate for SSDs, not optimal for HDDs
3793 BUG_ON(map
->layout_map_count
!= 2);
3794 if (dev
->offload_to_mirror
)
3795 map_index
+= map
->data_disks_per_row
;
3796 dev
->offload_to_mirror
= !dev
->offload_to_mirror
;
3799 /* Handles N-way mirrors (R1-ADM)
3800 * and R10 with # of drives divisible by 3.)
3802 BUG_ON(map
->layout_map_count
!= 3);
3804 offload_to_mirror
= dev
->offload_to_mirror
;
3805 raid_map_helper(map
, offload_to_mirror
,
3806 &map_index
, ¤t_group
);
3807 /* set mirror group to use next time */
3809 (offload_to_mirror
>= map
->layout_map_count
- 1)
3810 ? 0 : offload_to_mirror
+ 1;
3811 /* FIXME: remove after debug/dev */
3812 BUG_ON(offload_to_mirror
>= map
->layout_map_count
);
3813 dev_warn(&h
->pdev
->dev
,
3814 "DEBUG: Using physical disk map index %d from mirror group %d\n",
3815 map_index
, offload_to_mirror
);
3816 dev
->offload_to_mirror
= offload_to_mirror
;
3817 /* Avoid direct use of dev->offload_to_mirror within this
3818 * function since multiple threads might simultaneously
3819 * increment it beyond the range of dev->layout_map_count -1.
3824 if (map
->layout_map_count
<= 1)
3827 /* Verify first and last block are in same RAID group */
3828 r5or6_blocks_per_row
=
3829 map
->strip_size
* map
->data_disks_per_row
;
3830 BUG_ON(r5or6_blocks_per_row
== 0);
3831 stripesize
= r5or6_blocks_per_row
* map
->layout_map_count
;
3832 #if BITS_PER_LONG == 32
3833 tmpdiv
= first_block
;
3834 first_group
= do_div(tmpdiv
, stripesize
);
3835 tmpdiv
= first_group
;
3836 (void) do_div(tmpdiv
, r5or6_blocks_per_row
);
3837 first_group
= tmpdiv
;
3838 tmpdiv
= last_block
;
3839 last_group
= do_div(tmpdiv
, stripesize
);
3840 tmpdiv
= last_group
;
3841 (void) do_div(tmpdiv
, r5or6_blocks_per_row
);
3842 last_group
= tmpdiv
;
3844 first_group
= (first_block
% stripesize
) / r5or6_blocks_per_row
;
3845 last_group
= (last_block
% stripesize
) / r5or6_blocks_per_row
;
3847 if (first_group
!= last_group
)
3848 return IO_ACCEL_INELIGIBLE
;
3850 /* Verify request is in a single row of RAID 5/6 */
3851 #if BITS_PER_LONG == 32
3852 tmpdiv
= first_block
;
3853 (void) do_div(tmpdiv
, stripesize
);
3854 first_row
= r5or6_first_row
= r0_first_row
= tmpdiv
;
3855 tmpdiv
= last_block
;
3856 (void) do_div(tmpdiv
, stripesize
);
3857 r5or6_last_row
= r0_last_row
= tmpdiv
;
3859 first_row
= r5or6_first_row
= r0_first_row
=
3860 first_block
/ stripesize
;
3861 r5or6_last_row
= r0_last_row
= last_block
/ stripesize
;
3863 if (r5or6_first_row
!= r5or6_last_row
)
3864 return IO_ACCEL_INELIGIBLE
;
3867 /* Verify request is in a single column */
3868 #if BITS_PER_LONG == 32
3869 tmpdiv
= first_block
;
3870 first_row_offset
= do_div(tmpdiv
, stripesize
);
3871 tmpdiv
= first_row_offset
;
3872 first_row_offset
= (u32
) do_div(tmpdiv
, r5or6_blocks_per_row
);
3873 r5or6_first_row_offset
= first_row_offset
;
3874 tmpdiv
= last_block
;
3875 r5or6_last_row_offset
= do_div(tmpdiv
, stripesize
);
3876 tmpdiv
= r5or6_last_row_offset
;
3877 r5or6_last_row_offset
= do_div(tmpdiv
, r5or6_blocks_per_row
);
3878 tmpdiv
= r5or6_first_row_offset
;
3879 (void) do_div(tmpdiv
, map
->strip_size
);
3880 first_column
= r5or6_first_column
= tmpdiv
;
3881 tmpdiv
= r5or6_last_row_offset
;
3882 (void) do_div(tmpdiv
, map
->strip_size
);
3883 r5or6_last_column
= tmpdiv
;
3885 first_row_offset
= r5or6_first_row_offset
=
3886 (u32
)((first_block
% stripesize
) %
3887 r5or6_blocks_per_row
);
3889 r5or6_last_row_offset
=
3890 (u32
)((last_block
% stripesize
) %
3891 r5or6_blocks_per_row
);
3893 first_column
= r5or6_first_column
=
3894 r5or6_first_row_offset
/ map
->strip_size
;
3896 r5or6_last_row_offset
/ map
->strip_size
;
3898 if (r5or6_first_column
!= r5or6_last_column
)
3899 return IO_ACCEL_INELIGIBLE
;
3901 /* Request is eligible */
3902 map_row
= ((u32
)(first_row
>> map
->parity_rotation_shift
)) %
3905 map_index
= (first_group
*
3906 (map
->row_cnt
* total_disks_per_row
)) +
3907 (map_row
* total_disks_per_row
) + first_column
;
3910 return IO_ACCEL_INELIGIBLE
;
3913 disk_handle
= dd
[map_index
].ioaccel_handle
;
3914 disk_block
= map
->disk_starting_blk
+ (first_row
* map
->strip_size
) +
3915 (first_row_offset
- (first_column
* map
->strip_size
));
3916 disk_block_cnt
= block_cnt
;
3918 /* handle differing logical/physical block sizes */
3919 if (map
->phys_blk_shift
) {
3920 disk_block
<<= map
->phys_blk_shift
;
3921 disk_block_cnt
<<= map
->phys_blk_shift
;
3923 BUG_ON(disk_block_cnt
> 0xffff);
3925 /* build the new CDB for the physical disk I/O */
3926 if (disk_block
> 0xffffffff) {
3927 cdb
[0] = is_write
? WRITE_16
: READ_16
;
3929 cdb
[2] = (u8
) (disk_block
>> 56);
3930 cdb
[3] = (u8
) (disk_block
>> 48);
3931 cdb
[4] = (u8
) (disk_block
>> 40);
3932 cdb
[5] = (u8
) (disk_block
>> 32);
3933 cdb
[6] = (u8
) (disk_block
>> 24);
3934 cdb
[7] = (u8
) (disk_block
>> 16);
3935 cdb
[8] = (u8
) (disk_block
>> 8);
3936 cdb
[9] = (u8
) (disk_block
);
3937 cdb
[10] = (u8
) (disk_block_cnt
>> 24);
3938 cdb
[11] = (u8
) (disk_block_cnt
>> 16);
3939 cdb
[12] = (u8
) (disk_block_cnt
>> 8);
3940 cdb
[13] = (u8
) (disk_block_cnt
);
3945 cdb
[0] = is_write
? WRITE_10
: READ_10
;
3947 cdb
[2] = (u8
) (disk_block
>> 24);
3948 cdb
[3] = (u8
) (disk_block
>> 16);
3949 cdb
[4] = (u8
) (disk_block
>> 8);
3950 cdb
[5] = (u8
) (disk_block
);
3952 cdb
[7] = (u8
) (disk_block_cnt
>> 8);
3953 cdb
[8] = (u8
) (disk_block_cnt
);
3957 return hpsa_scsi_ioaccel_queue_command(h
, c
, disk_handle
, cdb
, cdb_len
,
3961 static int hpsa_scsi_queue_command_lck(struct scsi_cmnd
*cmd
,
3962 void (*done
)(struct scsi_cmnd
*))
3964 struct ctlr_info
*h
;
3965 struct hpsa_scsi_dev_t
*dev
;
3966 unsigned char scsi3addr
[8];
3967 struct CommandList
*c
;
3970 /* Get the ptr to our adapter structure out of cmd->host. */
3971 h
= sdev_to_hba(cmd
->device
);
3972 dev
= cmd
->device
->hostdata
;
3974 cmd
->result
= DID_NO_CONNECT
<< 16;
3978 memcpy(scsi3addr
, dev
->scsi3addr
, sizeof(scsi3addr
));
3980 if (unlikely(lockup_detected(h
))) {
3981 cmd
->result
= DID_ERROR
<< 16;
3986 if (c
== NULL
) { /* trouble... */
3987 dev_err(&h
->pdev
->dev
, "cmd_alloc returned NULL!\n");
3988 return SCSI_MLQUEUE_HOST_BUSY
;
3991 /* Fill in the command list header */
3993 cmd
->scsi_done
= done
; /* save this for use by completion code */
3995 /* save c in case we have to abort it */
3996 cmd
->host_scribble
= (unsigned char *) c
;
3998 c
->cmd_type
= CMD_SCSI
;
4001 /* Call alternate submit routine for I/O accelerated commands.
4002 * Retries always go down the normal I/O path.
4004 if (likely(cmd
->retries
== 0 &&
4005 cmd
->request
->cmd_type
== REQ_TYPE_FS
&&
4006 h
->acciopath_status
)) {
4007 if (dev
->offload_enabled
) {
4008 rc
= hpsa_scsi_ioaccel_raid_map(h
, c
);
4010 return 0; /* Sent on ioaccel path */
4011 if (rc
< 0) { /* scsi_dma_map failed. */
4013 return SCSI_MLQUEUE_HOST_BUSY
;
4015 } else if (dev
->ioaccel_handle
) {
4016 rc
= hpsa_scsi_ioaccel_direct_map(h
, c
);
4018 return 0; /* Sent on direct map path */
4019 if (rc
< 0) { /* scsi_dma_map failed. */
4021 return SCSI_MLQUEUE_HOST_BUSY
;
4026 c
->Header
.ReplyQueue
= 0; /* unused in simple mode */
4027 memcpy(&c
->Header
.LUN
.LunAddrBytes
[0], &scsi3addr
[0], 8);
4028 c
->Header
.Tag
.lower
= (c
->cmdindex
<< DIRECT_LOOKUP_SHIFT
);
4029 c
->Header
.Tag
.lower
|= DIRECT_LOOKUP_BIT
;
4031 /* Fill in the request block... */
4033 c
->Request
.Timeout
= 0;
4034 memset(c
->Request
.CDB
, 0, sizeof(c
->Request
.CDB
));
4035 BUG_ON(cmd
->cmd_len
> sizeof(c
->Request
.CDB
));
4036 c
->Request
.CDBLen
= cmd
->cmd_len
;
4037 memcpy(c
->Request
.CDB
, cmd
->cmnd
, cmd
->cmd_len
);
4038 c
->Request
.Type
.Type
= TYPE_CMD
;
4039 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
4040 switch (cmd
->sc_data_direction
) {
4042 c
->Request
.Type
.Direction
= XFER_WRITE
;
4044 case DMA_FROM_DEVICE
:
4045 c
->Request
.Type
.Direction
= XFER_READ
;
4048 c
->Request
.Type
.Direction
= XFER_NONE
;
4050 case DMA_BIDIRECTIONAL
:
4051 /* This can happen if a buggy application does a scsi passthru
4052 * and sets both inlen and outlen to non-zero. ( see
4053 * ../scsi/scsi_ioctl.c:scsi_ioctl_send_command() )
4056 c
->Request
.Type
.Direction
= XFER_RSVD
;
4057 /* This is technically wrong, and hpsa controllers should
4058 * reject it with CMD_INVALID, which is the most correct
4059 * response, but non-fibre backends appear to let it
4060 * slide by, and give the same results as if this field
4061 * were set correctly. Either way is acceptable for
4062 * our purposes here.
4068 dev_err(&h
->pdev
->dev
, "unknown data direction: %d\n",
4069 cmd
->sc_data_direction
);
4074 if (hpsa_scatter_gather(h
, c
, cmd
) < 0) { /* Fill SG list */
4076 return SCSI_MLQUEUE_HOST_BUSY
;
4078 enqueue_cmd_and_start_io(h
, c
);
4079 /* the cmd'll come back via intr handler in complete_scsi_command() */
4083 static DEF_SCSI_QCMD(hpsa_scsi_queue_command
)
4085 static int do_not_scan_if_controller_locked_up(struct ctlr_info
*h
)
4087 unsigned long flags
;
4090 * Don't let rescans be initiated on a controller known
4091 * to be locked up. If the controller locks up *during*
4092 * a rescan, that thread is probably hosed, but at least
4093 * we can prevent new rescan threads from piling up on a
4094 * locked up controller.
4096 if (unlikely(lockup_detected(h
))) {
4097 spin_lock_irqsave(&h
->scan_lock
, flags
);
4098 h
->scan_finished
= 1;
4099 wake_up_all(&h
->scan_wait_queue
);
4100 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4106 static void hpsa_scan_start(struct Scsi_Host
*sh
)
4108 struct ctlr_info
*h
= shost_to_hba(sh
);
4109 unsigned long flags
;
4111 if (do_not_scan_if_controller_locked_up(h
))
4114 /* wait until any scan already in progress is finished. */
4116 spin_lock_irqsave(&h
->scan_lock
, flags
);
4117 if (h
->scan_finished
)
4119 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4120 wait_event(h
->scan_wait_queue
, h
->scan_finished
);
4121 /* Note: We don't need to worry about a race between this
4122 * thread and driver unload because the midlayer will
4123 * have incremented the reference count, so unload won't
4124 * happen if we're in here.
4127 h
->scan_finished
= 0; /* mark scan as in progress */
4128 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4130 if (do_not_scan_if_controller_locked_up(h
))
4133 hpsa_update_scsi_devices(h
, h
->scsi_host
->host_no
);
4135 spin_lock_irqsave(&h
->scan_lock
, flags
);
4136 h
->scan_finished
= 1; /* mark scan as finished. */
4137 wake_up_all(&h
->scan_wait_queue
);
4138 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4141 static int hpsa_scan_finished(struct Scsi_Host
*sh
,
4142 unsigned long elapsed_time
)
4144 struct ctlr_info
*h
= shost_to_hba(sh
);
4145 unsigned long flags
;
4148 spin_lock_irqsave(&h
->scan_lock
, flags
);
4149 finished
= h
->scan_finished
;
4150 spin_unlock_irqrestore(&h
->scan_lock
, flags
);
4154 static int hpsa_change_queue_depth(struct scsi_device
*sdev
,
4155 int qdepth
, int reason
)
4157 struct ctlr_info
*h
= sdev_to_hba(sdev
);
4159 if (reason
!= SCSI_QDEPTH_DEFAULT
)
4165 if (qdepth
> h
->nr_cmds
)
4166 qdepth
= h
->nr_cmds
;
4167 scsi_adjust_queue_depth(sdev
, scsi_get_tag_type(sdev
), qdepth
);
4168 return sdev
->queue_depth
;
4171 static void hpsa_unregister_scsi(struct ctlr_info
*h
)
4173 /* we are being forcibly unloaded, and may not refuse. */
4174 scsi_remove_host(h
->scsi_host
);
4175 scsi_host_put(h
->scsi_host
);
4176 h
->scsi_host
= NULL
;
4179 static int hpsa_register_scsi(struct ctlr_info
*h
)
4181 struct Scsi_Host
*sh
;
4184 sh
= scsi_host_alloc(&hpsa_driver_template
, sizeof(h
));
4191 sh
->max_channel
= 3;
4192 sh
->max_cmd_len
= MAX_COMMAND_SIZE
;
4193 sh
->max_lun
= HPSA_MAX_LUN
;
4194 sh
->max_id
= HPSA_MAX_LUN
;
4195 sh
->can_queue
= h
->nr_cmds
;
4196 if (h
->hba_mode_enabled
)
4197 sh
->cmd_per_lun
= 7;
4199 sh
->cmd_per_lun
= h
->nr_cmds
;
4200 sh
->sg_tablesize
= h
->maxsgentries
;
4202 sh
->hostdata
[0] = (unsigned long) h
;
4203 sh
->irq
= h
->intr
[h
->intr_mode
];
4204 sh
->unique_id
= sh
->irq
;
4205 error
= scsi_add_host(sh
, &h
->pdev
->dev
);
4212 dev_err(&h
->pdev
->dev
, "%s: scsi_add_host"
4213 " failed for controller %d\n", __func__
, h
->ctlr
);
4217 dev_err(&h
->pdev
->dev
, "%s: scsi_host_alloc"
4218 " failed for controller %d\n", __func__
, h
->ctlr
);
4222 static int wait_for_device_to_become_ready(struct ctlr_info
*h
,
4223 unsigned char lunaddr
[])
4227 int waittime
= 1; /* seconds */
4228 struct CommandList
*c
;
4230 c
= cmd_special_alloc(h
);
4232 dev_warn(&h
->pdev
->dev
, "out of memory in "
4233 "wait_for_device_to_become_ready.\n");
4237 /* Send test unit ready until device ready, or give up. */
4238 while (count
< HPSA_TUR_RETRY_LIMIT
) {
4240 /* Wait for a bit. do this first, because if we send
4241 * the TUR right away, the reset will just abort it.
4243 msleep(1000 * waittime
);
4245 rc
= 0; /* Device ready. */
4247 /* Increase wait time with each try, up to a point. */
4248 if (waittime
< HPSA_MAX_WAIT_INTERVAL_SECS
)
4249 waittime
= waittime
* 2;
4251 /* Send the Test Unit Ready, fill_cmd can't fail, no mapping */
4252 (void) fill_cmd(c
, TEST_UNIT_READY
, h
,
4253 NULL
, 0, 0, lunaddr
, TYPE_CMD
);
4254 hpsa_scsi_do_simple_cmd_core(h
, c
);
4255 /* no unmap needed here because no data xfer. */
4257 if (c
->err_info
->CommandStatus
== CMD_SUCCESS
)
4260 if (c
->err_info
->CommandStatus
== CMD_TARGET_STATUS
&&
4261 c
->err_info
->ScsiStatus
== SAM_STAT_CHECK_CONDITION
&&
4262 (c
->err_info
->SenseInfo
[2] == NO_SENSE
||
4263 c
->err_info
->SenseInfo
[2] == UNIT_ATTENTION
))
4266 dev_warn(&h
->pdev
->dev
, "waiting %d secs "
4267 "for device to become ready.\n", waittime
);
4268 rc
= 1; /* device not ready. */
4272 dev_warn(&h
->pdev
->dev
, "giving up on device.\n");
4274 dev_warn(&h
->pdev
->dev
, "device is ready.\n");
4276 cmd_special_free(h
, c
);
4280 /* Need at least one of these error handlers to keep ../scsi/hosts.c from
4281 * complaining. Doing a host- or bus-reset can't do anything good here.
4283 static int hpsa_eh_device_reset_handler(struct scsi_cmnd
*scsicmd
)
4286 struct ctlr_info
*h
;
4287 struct hpsa_scsi_dev_t
*dev
;
4289 /* find the controller to which the command to be aborted was sent */
4290 h
= sdev_to_hba(scsicmd
->device
);
4291 if (h
== NULL
) /* paranoia */
4293 dev
= scsicmd
->device
->hostdata
;
4295 dev_err(&h
->pdev
->dev
, "hpsa_eh_device_reset_handler: "
4296 "device lookup failed.\n");
4299 dev_warn(&h
->pdev
->dev
, "resetting device %d:%d:%d:%d\n",
4300 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
);
4301 /* send a reset to the SCSI LUN which the command was sent to */
4302 rc
= hpsa_send_reset(h
, dev
->scsi3addr
, HPSA_RESET_TYPE_LUN
);
4303 if (rc
== 0 && wait_for_device_to_become_ready(h
, dev
->scsi3addr
) == 0)
4306 dev_warn(&h
->pdev
->dev
, "resetting device failed.\n");
4310 static void swizzle_abort_tag(u8
*tag
)
4314 memcpy(original_tag
, tag
, 8);
4315 tag
[0] = original_tag
[3];
4316 tag
[1] = original_tag
[2];
4317 tag
[2] = original_tag
[1];
4318 tag
[3] = original_tag
[0];
4319 tag
[4] = original_tag
[7];
4320 tag
[5] = original_tag
[6];
4321 tag
[6] = original_tag
[5];
4322 tag
[7] = original_tag
[4];
4325 static void hpsa_get_tag(struct ctlr_info
*h
,
4326 struct CommandList
*c
, u32
*taglower
, u32
*tagupper
)
4328 if (c
->cmd_type
== CMD_IOACCEL1
) {
4329 struct io_accel1_cmd
*cm1
= (struct io_accel1_cmd
*)
4330 &h
->ioaccel_cmd_pool
[c
->cmdindex
];
4331 *tagupper
= cm1
->Tag
.upper
;
4332 *taglower
= cm1
->Tag
.lower
;
4335 if (c
->cmd_type
== CMD_IOACCEL2
) {
4336 struct io_accel2_cmd
*cm2
= (struct io_accel2_cmd
*)
4337 &h
->ioaccel2_cmd_pool
[c
->cmdindex
];
4338 /* upper tag not used in ioaccel2 mode */
4339 memset(tagupper
, 0, sizeof(*tagupper
));
4340 *taglower
= cm2
->Tag
;
4343 *tagupper
= c
->Header
.Tag
.upper
;
4344 *taglower
= c
->Header
.Tag
.lower
;
4348 static int hpsa_send_abort(struct ctlr_info
*h
, unsigned char *scsi3addr
,
4349 struct CommandList
*abort
, int swizzle
)
4352 struct CommandList
*c
;
4353 struct ErrorInfo
*ei
;
4354 u32 tagupper
, taglower
;
4356 c
= cmd_special_alloc(h
);
4357 if (c
== NULL
) { /* trouble... */
4358 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
4362 /* fill_cmd can't fail here, no buffer to map */
4363 (void) fill_cmd(c
, HPSA_ABORT_MSG
, h
, abort
,
4364 0, 0, scsi3addr
, TYPE_MSG
);
4366 swizzle_abort_tag(&c
->Request
.CDB
[4]);
4367 hpsa_scsi_do_simple_cmd_core(h
, c
);
4368 hpsa_get_tag(h
, abort
, &taglower
, &tagupper
);
4369 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: do_simple_cmd_core completed.\n",
4370 __func__
, tagupper
, taglower
);
4371 /* no unmap needed here because no data xfer. */
4374 switch (ei
->CommandStatus
) {
4377 case CMD_UNABORTABLE
: /* Very common, don't make noise. */
4381 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: interpreting error.\n",
4382 __func__
, tagupper
, taglower
);
4383 hpsa_scsi_interpret_error(h
, c
);
4387 cmd_special_free(h
, c
);
4388 dev_dbg(&h
->pdev
->dev
, "%s: Tag:0x%08x:%08x: Finished.\n",
4389 __func__
, tagupper
, taglower
);
4394 * hpsa_find_cmd_in_queue
4396 * Used to determine whether a command (find) is still present
4397 * in queue_head. Optionally excludes the last element of queue_head.
4399 * This is used to avoid unnecessary aborts. Commands in h->reqQ have
4400 * not yet been submitted, and so can be aborted by the driver without
4401 * sending an abort to the hardware.
4403 * Returns pointer to command if found in queue, NULL otherwise.
4405 static struct CommandList
*hpsa_find_cmd_in_queue(struct ctlr_info
*h
,
4406 struct scsi_cmnd
*find
, struct list_head
*queue_head
)
4408 unsigned long flags
;
4409 struct CommandList
*c
= NULL
; /* ptr into cmpQ */
4413 spin_lock_irqsave(&h
->lock
, flags
);
4414 list_for_each_entry(c
, queue_head
, list
) {
4415 if (c
->scsi_cmd
== NULL
) /* e.g.: passthru ioctl */
4417 if (c
->scsi_cmd
== find
) {
4418 spin_unlock_irqrestore(&h
->lock
, flags
);
4422 spin_unlock_irqrestore(&h
->lock
, flags
);
4426 static struct CommandList
*hpsa_find_cmd_in_queue_by_tag(struct ctlr_info
*h
,
4427 u8
*tag
, struct list_head
*queue_head
)
4429 unsigned long flags
;
4430 struct CommandList
*c
;
4432 spin_lock_irqsave(&h
->lock
, flags
);
4433 list_for_each_entry(c
, queue_head
, list
) {
4434 if (memcmp(&c
->Header
.Tag
, tag
, 8) != 0)
4436 spin_unlock_irqrestore(&h
->lock
, flags
);
4439 spin_unlock_irqrestore(&h
->lock
, flags
);
4443 /* ioaccel2 path firmware cannot handle abort task requests.
4444 * Change abort requests to physical target reset, and send to the
4445 * address of the physical disk used for the ioaccel 2 command.
4446 * Return 0 on success (IO_OK)
4450 static int hpsa_send_reset_as_abort_ioaccel2(struct ctlr_info
*h
,
4451 unsigned char *scsi3addr
, struct CommandList
*abort
)
4454 struct scsi_cmnd
*scmd
; /* scsi command within request being aborted */
4455 struct hpsa_scsi_dev_t
*dev
; /* device to which scsi cmd was sent */
4456 unsigned char phys_scsi3addr
[8]; /* addr of phys disk with volume */
4457 unsigned char *psa
= &phys_scsi3addr
[0];
4459 /* Get a pointer to the hpsa logical device. */
4460 scmd
= (struct scsi_cmnd
*) abort
->scsi_cmd
;
4461 dev
= (struct hpsa_scsi_dev_t
*)(scmd
->device
->hostdata
);
4463 dev_warn(&h
->pdev
->dev
,
4464 "Cannot abort: no device pointer for command.\n");
4465 return -1; /* not abortable */
4468 if (h
->raid_offload_debug
> 0)
4469 dev_info(&h
->pdev
->dev
,
4470 "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",
4471 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
,
4472 scsi3addr
[0], scsi3addr
[1], scsi3addr
[2], scsi3addr
[3],
4473 scsi3addr
[4], scsi3addr
[5], scsi3addr
[6], scsi3addr
[7]);
4475 if (!dev
->offload_enabled
) {
4476 dev_warn(&h
->pdev
->dev
,
4477 "Can't abort: device is not operating in HP SSD Smart Path mode.\n");
4478 return -1; /* not abortable */
4481 /* Incoming scsi3addr is logical addr. We need physical disk addr. */
4482 if (!hpsa_get_pdisk_of_ioaccel2(h
, abort
, psa
)) {
4483 dev_warn(&h
->pdev
->dev
, "Can't abort: Failed lookup of physical address.\n");
4484 return -1; /* not abortable */
4487 /* send the reset */
4488 if (h
->raid_offload_debug
> 0)
4489 dev_info(&h
->pdev
->dev
,
4490 "Reset as abort: Resetting physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4491 psa
[0], psa
[1], psa
[2], psa
[3],
4492 psa
[4], psa
[5], psa
[6], psa
[7]);
4493 rc
= hpsa_send_reset(h
, psa
, HPSA_RESET_TYPE_TARGET
);
4495 dev_warn(&h
->pdev
->dev
,
4496 "Reset as abort: Failed on physical device at scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4497 psa
[0], psa
[1], psa
[2], psa
[3],
4498 psa
[4], psa
[5], psa
[6], psa
[7]);
4499 return rc
; /* failed to reset */
4502 /* wait for device to recover */
4503 if (wait_for_device_to_become_ready(h
, psa
) != 0) {
4504 dev_warn(&h
->pdev
->dev
,
4505 "Reset as abort: Failed: Device never recovered from reset: 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4506 psa
[0], psa
[1], psa
[2], psa
[3],
4507 psa
[4], psa
[5], psa
[6], psa
[7]);
4508 return -1; /* failed to recover */
4511 /* device recovered */
4512 dev_info(&h
->pdev
->dev
,
4513 "Reset as abort: Device recovered from reset: scsi3addr 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
4514 psa
[0], psa
[1], psa
[2], psa
[3],
4515 psa
[4], psa
[5], psa
[6], psa
[7]);
4517 return rc
; /* success */
4520 /* Some Smart Arrays need the abort tag swizzled, and some don't. It's hard to
4521 * tell which kind we're dealing with, so we send the abort both ways. There
4522 * shouldn't be any collisions between swizzled and unswizzled tags due to the
4523 * way we construct our tags but we check anyway in case the assumptions which
4524 * make this true someday become false.
4526 static int hpsa_send_abort_both_ways(struct ctlr_info
*h
,
4527 unsigned char *scsi3addr
, struct CommandList
*abort
)
4530 struct CommandList
*c
;
4531 int rc
= 0, rc2
= 0;
4533 /* ioccelerator mode 2 commands should be aborted via the
4534 * accelerated path, since RAID path is unaware of these commands,
4535 * but underlying firmware can't handle abort TMF.
4536 * Change abort to physical device reset.
4538 if (abort
->cmd_type
== CMD_IOACCEL2
)
4539 return hpsa_send_reset_as_abort_ioaccel2(h
, scsi3addr
, abort
);
4541 /* we do not expect to find the swizzled tag in our queue, but
4542 * check anyway just to be sure the assumptions which make this
4543 * the case haven't become wrong.
4545 memcpy(swizzled_tag
, &abort
->Request
.CDB
[4], 8);
4546 swizzle_abort_tag(swizzled_tag
);
4547 c
= hpsa_find_cmd_in_queue_by_tag(h
, swizzled_tag
, &h
->cmpQ
);
4549 dev_warn(&h
->pdev
->dev
, "Unexpectedly found byte-swapped tag in completion queue.\n");
4550 return hpsa_send_abort(h
, scsi3addr
, abort
, 0);
4552 rc
= hpsa_send_abort(h
, scsi3addr
, abort
, 0);
4554 /* if the command is still in our queue, we can't conclude that it was
4555 * aborted (it might have just completed normally) but in any case
4556 * we don't need to try to abort it another way.
4558 c
= hpsa_find_cmd_in_queue(h
, abort
->scsi_cmd
, &h
->cmpQ
);
4560 rc2
= hpsa_send_abort(h
, scsi3addr
, abort
, 1);
4564 /* Send an abort for the specified command.
4565 * If the device and controller support it,
4566 * send a task abort request.
4568 static int hpsa_eh_abort_handler(struct scsi_cmnd
*sc
)
4572 struct ctlr_info
*h
;
4573 struct hpsa_scsi_dev_t
*dev
;
4574 struct CommandList
*abort
; /* pointer to command to be aborted */
4575 struct CommandList
*found
;
4576 struct scsi_cmnd
*as
; /* ptr to scsi cmd inside aborted command. */
4577 char msg
[256]; /* For debug messaging. */
4579 u32 tagupper
, taglower
;
4581 /* Find the controller of the command to be aborted */
4582 h
= sdev_to_hba(sc
->device
);
4584 "ABORT REQUEST FAILED, Controller lookup failed.\n"))
4587 /* Check that controller supports some kind of task abort */
4588 if (!(HPSATMF_PHYS_TASK_ABORT
& h
->TMFSupportFlags
) &&
4589 !(HPSATMF_LOG_TASK_ABORT
& h
->TMFSupportFlags
))
4592 memset(msg
, 0, sizeof(msg
));
4593 ml
+= sprintf(msg
+ml
, "ABORT REQUEST on C%d:B%d:T%d:L%d ",
4594 h
->scsi_host
->host_no
, sc
->device
->channel
,
4595 sc
->device
->id
, sc
->device
->lun
);
4597 /* Find the device of the command to be aborted */
4598 dev
= sc
->device
->hostdata
;
4600 dev_err(&h
->pdev
->dev
, "%s FAILED, Device lookup failed.\n",
4605 /* Get SCSI command to be aborted */
4606 abort
= (struct CommandList
*) sc
->host_scribble
;
4607 if (abort
== NULL
) {
4608 dev_err(&h
->pdev
->dev
, "%s FAILED, Command to abort is NULL.\n",
4612 hpsa_get_tag(h
, abort
, &taglower
, &tagupper
);
4613 ml
+= sprintf(msg
+ml
, "Tag:0x%08x:%08x ", tagupper
, taglower
);
4614 as
= (struct scsi_cmnd
*) abort
->scsi_cmd
;
4616 ml
+= sprintf(msg
+ml
, "Command:0x%x SN:0x%lx ",
4617 as
->cmnd
[0], as
->serial_number
);
4618 dev_dbg(&h
->pdev
->dev
, "%s\n", msg
);
4619 dev_warn(&h
->pdev
->dev
, "Abort request on C%d:B%d:T%d:L%d\n",
4620 h
->scsi_host
->host_no
, dev
->bus
, dev
->target
, dev
->lun
);
4622 /* Search reqQ to See if command is queued but not submitted,
4623 * if so, complete the command with aborted status and remove
4626 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->reqQ
);
4628 found
->err_info
->CommandStatus
= CMD_ABORTED
;
4630 dev_info(&h
->pdev
->dev
, "%s Request SUCCEEDED (driver queue).\n",
4635 /* not in reqQ, if also not in cmpQ, must have already completed */
4636 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->cmpQ
);
4638 dev_dbg(&h
->pdev
->dev
, "%s Request SUCCEEDED (not known to driver).\n",
4644 * Command is in flight, or possibly already completed
4645 * by the firmware (but not to the scsi mid layer) but we can't
4646 * distinguish which. Send the abort down.
4648 rc
= hpsa_send_abort_both_ways(h
, dev
->scsi3addr
, abort
);
4650 dev_dbg(&h
->pdev
->dev
, "%s Request FAILED.\n", msg
);
4651 dev_warn(&h
->pdev
->dev
, "FAILED abort on device C%d:B%d:T%d:L%d\n",
4652 h
->scsi_host
->host_no
,
4653 dev
->bus
, dev
->target
, dev
->lun
);
4656 dev_info(&h
->pdev
->dev
, "%s REQUEST SUCCEEDED.\n", msg
);
4658 /* If the abort(s) above completed and actually aborted the
4659 * command, then the command to be aborted should already be
4660 * completed. If not, wait around a bit more to see if they
4661 * manage to complete normally.
4663 #define ABORT_COMPLETE_WAIT_SECS 30
4664 for (i
= 0; i
< ABORT_COMPLETE_WAIT_SECS
* 10; i
++) {
4665 found
= hpsa_find_cmd_in_queue(h
, sc
, &h
->cmpQ
);
4670 dev_warn(&h
->pdev
->dev
, "%s FAILED. Aborted command has not completed after %d seconds.\n",
4671 msg
, ABORT_COMPLETE_WAIT_SECS
);
4677 * For operations that cannot sleep, a command block is allocated at init,
4678 * and managed by cmd_alloc() and cmd_free() using a simple bitmap to track
4679 * which ones are free or in use. Lock must be held when calling this.
4680 * cmd_free() is the complement.
4682 static struct CommandList
*cmd_alloc(struct ctlr_info
*h
)
4684 struct CommandList
*c
;
4686 union u64bit temp64
;
4687 dma_addr_t cmd_dma_handle
, err_dma_handle
;
4688 unsigned long flags
;
4690 spin_lock_irqsave(&h
->lock
, flags
);
4692 i
= find_first_zero_bit(h
->cmd_pool_bits
, h
->nr_cmds
);
4693 if (i
== h
->nr_cmds
) {
4694 spin_unlock_irqrestore(&h
->lock
, flags
);
4697 } while (test_and_set_bit
4698 (i
& (BITS_PER_LONG
- 1),
4699 h
->cmd_pool_bits
+ (i
/ BITS_PER_LONG
)) != 0);
4700 spin_unlock_irqrestore(&h
->lock
, flags
);
4702 c
= h
->cmd_pool
+ i
;
4703 memset(c
, 0, sizeof(*c
));
4704 cmd_dma_handle
= h
->cmd_pool_dhandle
4706 c
->err_info
= h
->errinfo_pool
+ i
;
4707 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
4708 err_dma_handle
= h
->errinfo_pool_dhandle
4709 + i
* sizeof(*c
->err_info
);
4713 INIT_LIST_HEAD(&c
->list
);
4714 c
->busaddr
= (u32
) cmd_dma_handle
;
4715 temp64
.val
= (u64
) err_dma_handle
;
4716 c
->ErrDesc
.Addr
.lower
= temp64
.val32
.lower
;
4717 c
->ErrDesc
.Addr
.upper
= temp64
.val32
.upper
;
4718 c
->ErrDesc
.Len
= sizeof(*c
->err_info
);
4724 /* For operations that can wait for kmalloc to possibly sleep,
4725 * this routine can be called. Lock need not be held to call
4726 * cmd_special_alloc. cmd_special_free() is the complement.
4728 static struct CommandList
*cmd_special_alloc(struct ctlr_info
*h
)
4730 struct CommandList
*c
;
4731 union u64bit temp64
;
4732 dma_addr_t cmd_dma_handle
, err_dma_handle
;
4734 c
= pci_alloc_consistent(h
->pdev
, sizeof(*c
), &cmd_dma_handle
);
4737 memset(c
, 0, sizeof(*c
));
4739 c
->cmd_type
= CMD_SCSI
;
4742 c
->err_info
= pci_alloc_consistent(h
->pdev
, sizeof(*c
->err_info
),
4745 if (c
->err_info
== NULL
) {
4746 pci_free_consistent(h
->pdev
,
4747 sizeof(*c
), c
, cmd_dma_handle
);
4750 memset(c
->err_info
, 0, sizeof(*c
->err_info
));
4752 INIT_LIST_HEAD(&c
->list
);
4753 c
->busaddr
= (u32
) cmd_dma_handle
;
4754 temp64
.val
= (u64
) err_dma_handle
;
4755 c
->ErrDesc
.Addr
.lower
= temp64
.val32
.lower
;
4756 c
->ErrDesc
.Addr
.upper
= temp64
.val32
.upper
;
4757 c
->ErrDesc
.Len
= sizeof(*c
->err_info
);
4763 static void cmd_free(struct ctlr_info
*h
, struct CommandList
*c
)
4766 unsigned long flags
;
4768 i
= c
- h
->cmd_pool
;
4769 spin_lock_irqsave(&h
->lock
, flags
);
4770 clear_bit(i
& (BITS_PER_LONG
- 1),
4771 h
->cmd_pool_bits
+ (i
/ BITS_PER_LONG
));
4772 spin_unlock_irqrestore(&h
->lock
, flags
);
4775 static void cmd_special_free(struct ctlr_info
*h
, struct CommandList
*c
)
4777 union u64bit temp64
;
4779 temp64
.val32
.lower
= c
->ErrDesc
.Addr
.lower
;
4780 temp64
.val32
.upper
= c
->ErrDesc
.Addr
.upper
;
4781 pci_free_consistent(h
->pdev
, sizeof(*c
->err_info
),
4782 c
->err_info
, (dma_addr_t
) temp64
.val
);
4783 pci_free_consistent(h
->pdev
, sizeof(*c
),
4784 c
, (dma_addr_t
) (c
->busaddr
& DIRECT_LOOKUP_MASK
));
4787 #ifdef CONFIG_COMPAT
4789 static int hpsa_ioctl32_passthru(struct scsi_device
*dev
, int cmd
, void *arg
)
4791 IOCTL32_Command_struct __user
*arg32
=
4792 (IOCTL32_Command_struct __user
*) arg
;
4793 IOCTL_Command_struct arg64
;
4794 IOCTL_Command_struct __user
*p
= compat_alloc_user_space(sizeof(arg64
));
4798 memset(&arg64
, 0, sizeof(arg64
));
4800 err
|= copy_from_user(&arg64
.LUN_info
, &arg32
->LUN_info
,
4801 sizeof(arg64
.LUN_info
));
4802 err
|= copy_from_user(&arg64
.Request
, &arg32
->Request
,
4803 sizeof(arg64
.Request
));
4804 err
|= copy_from_user(&arg64
.error_info
, &arg32
->error_info
,
4805 sizeof(arg64
.error_info
));
4806 err
|= get_user(arg64
.buf_size
, &arg32
->buf_size
);
4807 err
|= get_user(cp
, &arg32
->buf
);
4808 arg64
.buf
= compat_ptr(cp
);
4809 err
|= copy_to_user(p
, &arg64
, sizeof(arg64
));
4814 err
= hpsa_ioctl(dev
, CCISS_PASSTHRU
, (void *)p
);
4817 err
|= copy_in_user(&arg32
->error_info
, &p
->error_info
,
4818 sizeof(arg32
->error_info
));
4824 static int hpsa_ioctl32_big_passthru(struct scsi_device
*dev
,
4827 BIG_IOCTL32_Command_struct __user
*arg32
=
4828 (BIG_IOCTL32_Command_struct __user
*) arg
;
4829 BIG_IOCTL_Command_struct arg64
;
4830 BIG_IOCTL_Command_struct __user
*p
=
4831 compat_alloc_user_space(sizeof(arg64
));
4835 memset(&arg64
, 0, sizeof(arg64
));
4837 err
|= copy_from_user(&arg64
.LUN_info
, &arg32
->LUN_info
,
4838 sizeof(arg64
.LUN_info
));
4839 err
|= copy_from_user(&arg64
.Request
, &arg32
->Request
,
4840 sizeof(arg64
.Request
));
4841 err
|= copy_from_user(&arg64
.error_info
, &arg32
->error_info
,
4842 sizeof(arg64
.error_info
));
4843 err
|= get_user(arg64
.buf_size
, &arg32
->buf_size
);
4844 err
|= get_user(arg64
.malloc_size
, &arg32
->malloc_size
);
4845 err
|= get_user(cp
, &arg32
->buf
);
4846 arg64
.buf
= compat_ptr(cp
);
4847 err
|= copy_to_user(p
, &arg64
, sizeof(arg64
));
4852 err
= hpsa_ioctl(dev
, CCISS_BIG_PASSTHRU
, (void *)p
);
4855 err
|= copy_in_user(&arg32
->error_info
, &p
->error_info
,
4856 sizeof(arg32
->error_info
));
4862 static int hpsa_compat_ioctl(struct scsi_device
*dev
, int cmd
, void *arg
)
4865 case CCISS_GETPCIINFO
:
4866 case CCISS_GETINTINFO
:
4867 case CCISS_SETINTINFO
:
4868 case CCISS_GETNODENAME
:
4869 case CCISS_SETNODENAME
:
4870 case CCISS_GETHEARTBEAT
:
4871 case CCISS_GETBUSTYPES
:
4872 case CCISS_GETFIRMVER
:
4873 case CCISS_GETDRIVVER
:
4874 case CCISS_REVALIDVOLS
:
4875 case CCISS_DEREGDISK
:
4876 case CCISS_REGNEWDISK
:
4878 case CCISS_RESCANDISK
:
4879 case CCISS_GETLUNINFO
:
4880 return hpsa_ioctl(dev
, cmd
, arg
);
4882 case CCISS_PASSTHRU32
:
4883 return hpsa_ioctl32_passthru(dev
, cmd
, arg
);
4884 case CCISS_BIG_PASSTHRU32
:
4885 return hpsa_ioctl32_big_passthru(dev
, cmd
, arg
);
4888 return -ENOIOCTLCMD
;
4893 static int hpsa_getpciinfo_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4895 struct hpsa_pci_info pciinfo
;
4899 pciinfo
.domain
= pci_domain_nr(h
->pdev
->bus
);
4900 pciinfo
.bus
= h
->pdev
->bus
->number
;
4901 pciinfo
.dev_fn
= h
->pdev
->devfn
;
4902 pciinfo
.board_id
= h
->board_id
;
4903 if (copy_to_user(argp
, &pciinfo
, sizeof(pciinfo
)))
4908 static int hpsa_getdrivver_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4910 DriverVer_type DriverVer
;
4911 unsigned char vmaj
, vmin
, vsubmin
;
4914 rc
= sscanf(HPSA_DRIVER_VERSION
, "%hhu.%hhu.%hhu",
4915 &vmaj
, &vmin
, &vsubmin
);
4917 dev_info(&h
->pdev
->dev
, "driver version string '%s' "
4918 "unrecognized.", HPSA_DRIVER_VERSION
);
4923 DriverVer
= (vmaj
<< 16) | (vmin
<< 8) | vsubmin
;
4926 if (copy_to_user(argp
, &DriverVer
, sizeof(DriverVer_type
)))
4931 static int hpsa_passthru_ioctl(struct ctlr_info
*h
, void __user
*argp
)
4933 IOCTL_Command_struct iocommand
;
4934 struct CommandList
*c
;
4936 union u64bit temp64
;
4941 if (!capable(CAP_SYS_RAWIO
))
4943 if (copy_from_user(&iocommand
, argp
, sizeof(iocommand
)))
4945 if ((iocommand
.buf_size
< 1) &&
4946 (iocommand
.Request
.Type
.Direction
!= XFER_NONE
)) {
4949 if (iocommand
.buf_size
> 0) {
4950 buff
= kmalloc(iocommand
.buf_size
, GFP_KERNEL
);
4953 if (iocommand
.Request
.Type
.Direction
& XFER_WRITE
) {
4954 /* Copy the data into the buffer we created */
4955 if (copy_from_user(buff
, iocommand
.buf
,
4956 iocommand
.buf_size
)) {
4961 memset(buff
, 0, iocommand
.buf_size
);
4964 c
= cmd_special_alloc(h
);
4969 /* Fill in the command type */
4970 c
->cmd_type
= CMD_IOCTL_PEND
;
4971 /* Fill in Command Header */
4972 c
->Header
.ReplyQueue
= 0; /* unused in simple mode */
4973 if (iocommand
.buf_size
> 0) { /* buffer to fill */
4974 c
->Header
.SGList
= 1;
4975 c
->Header
.SGTotal
= 1;
4976 } else { /* no buffers to fill */
4977 c
->Header
.SGList
= 0;
4978 c
->Header
.SGTotal
= 0;
4980 memcpy(&c
->Header
.LUN
, &iocommand
.LUN_info
, sizeof(c
->Header
.LUN
));
4981 /* use the kernel address the cmd block for tag */
4982 c
->Header
.Tag
.lower
= c
->busaddr
;
4984 /* Fill in Request block */
4985 memcpy(&c
->Request
, &iocommand
.Request
,
4986 sizeof(c
->Request
));
4988 /* Fill in the scatter gather information */
4989 if (iocommand
.buf_size
> 0) {
4990 temp64
.val
= pci_map_single(h
->pdev
, buff
,
4991 iocommand
.buf_size
, PCI_DMA_BIDIRECTIONAL
);
4992 if (dma_mapping_error(&h
->pdev
->dev
, temp64
.val
)) {
4993 c
->SG
[0].Addr
.lower
= 0;
4994 c
->SG
[0].Addr
.upper
= 0;
4999 c
->SG
[0].Addr
.lower
= temp64
.val32
.lower
;
5000 c
->SG
[0].Addr
.upper
= temp64
.val32
.upper
;
5001 c
->SG
[0].Len
= iocommand
.buf_size
;
5002 c
->SG
[0].Ext
= HPSA_SG_LAST
; /* we are not chaining*/
5004 hpsa_scsi_do_simple_cmd_core_if_no_lockup(h
, c
);
5005 if (iocommand
.buf_size
> 0)
5006 hpsa_pci_unmap(h
->pdev
, c
, 1, PCI_DMA_BIDIRECTIONAL
);
5007 check_ioctl_unit_attention(h
, c
);
5009 /* Copy the error information out */
5010 memcpy(&iocommand
.error_info
, c
->err_info
,
5011 sizeof(iocommand
.error_info
));
5012 if (copy_to_user(argp
, &iocommand
, sizeof(iocommand
))) {
5016 if ((iocommand
.Request
.Type
.Direction
& XFER_READ
) &&
5017 iocommand
.buf_size
> 0) {
5018 /* Copy the data out of the buffer we created */
5019 if (copy_to_user(iocommand
.buf
, buff
, iocommand
.buf_size
)) {
5025 cmd_special_free(h
, c
);
5031 static int hpsa_big_passthru_ioctl(struct ctlr_info
*h
, void __user
*argp
)
5033 BIG_IOCTL_Command_struct
*ioc
;
5034 struct CommandList
*c
;
5035 unsigned char **buff
= NULL
;
5036 int *buff_size
= NULL
;
5037 union u64bit temp64
;
5043 BYTE __user
*data_ptr
;
5047 if (!capable(CAP_SYS_RAWIO
))
5049 ioc
= (BIG_IOCTL_Command_struct
*)
5050 kmalloc(sizeof(*ioc
), GFP_KERNEL
);
5055 if (copy_from_user(ioc
, argp
, sizeof(*ioc
))) {
5059 if ((ioc
->buf_size
< 1) &&
5060 (ioc
->Request
.Type
.Direction
!= XFER_NONE
)) {
5064 /* Check kmalloc limits using all SGs */
5065 if (ioc
->malloc_size
> MAX_KMALLOC_SIZE
) {
5069 if (ioc
->buf_size
> ioc
->malloc_size
* SG_ENTRIES_IN_CMD
) {
5073 buff
= kzalloc(SG_ENTRIES_IN_CMD
* sizeof(char *), GFP_KERNEL
);
5078 buff_size
= kmalloc(SG_ENTRIES_IN_CMD
* sizeof(int), GFP_KERNEL
);
5083 left
= ioc
->buf_size
;
5084 data_ptr
= ioc
->buf
;
5086 sz
= (left
> ioc
->malloc_size
) ? ioc
->malloc_size
: left
;
5087 buff_size
[sg_used
] = sz
;
5088 buff
[sg_used
] = kmalloc(sz
, GFP_KERNEL
);
5089 if (buff
[sg_used
] == NULL
) {
5093 if (ioc
->Request
.Type
.Direction
& XFER_WRITE
) {
5094 if (copy_from_user(buff
[sg_used
], data_ptr
, sz
)) {
5099 memset(buff
[sg_used
], 0, sz
);
5104 c
= cmd_special_alloc(h
);
5109 c
->cmd_type
= CMD_IOCTL_PEND
;
5110 c
->Header
.ReplyQueue
= 0;
5111 c
->Header
.SGList
= c
->Header
.SGTotal
= sg_used
;
5112 memcpy(&c
->Header
.LUN
, &ioc
->LUN_info
, sizeof(c
->Header
.LUN
));
5113 c
->Header
.Tag
.lower
= c
->busaddr
;
5114 memcpy(&c
->Request
, &ioc
->Request
, sizeof(c
->Request
));
5115 if (ioc
->buf_size
> 0) {
5117 for (i
= 0; i
< sg_used
; i
++) {
5118 temp64
.val
= pci_map_single(h
->pdev
, buff
[i
],
5119 buff_size
[i
], PCI_DMA_BIDIRECTIONAL
);
5120 if (dma_mapping_error(&h
->pdev
->dev
, temp64
.val
)) {
5121 c
->SG
[i
].Addr
.lower
= 0;
5122 c
->SG
[i
].Addr
.upper
= 0;
5124 hpsa_pci_unmap(h
->pdev
, c
, i
,
5125 PCI_DMA_BIDIRECTIONAL
);
5129 c
->SG
[i
].Addr
.lower
= temp64
.val32
.lower
;
5130 c
->SG
[i
].Addr
.upper
= temp64
.val32
.upper
;
5131 c
->SG
[i
].Len
= buff_size
[i
];
5132 c
->SG
[i
].Ext
= i
< sg_used
- 1 ? 0 : HPSA_SG_LAST
;
5135 hpsa_scsi_do_simple_cmd_core_if_no_lockup(h
, c
);
5137 hpsa_pci_unmap(h
->pdev
, c
, sg_used
, PCI_DMA_BIDIRECTIONAL
);
5138 check_ioctl_unit_attention(h
, c
);
5139 /* Copy the error information out */
5140 memcpy(&ioc
->error_info
, c
->err_info
, sizeof(ioc
->error_info
));
5141 if (copy_to_user(argp
, ioc
, sizeof(*ioc
))) {
5145 if ((ioc
->Request
.Type
.Direction
& XFER_READ
) && ioc
->buf_size
> 0) {
5146 /* Copy the data out of the buffer we created */
5147 BYTE __user
*ptr
= ioc
->buf
;
5148 for (i
= 0; i
< sg_used
; i
++) {
5149 if (copy_to_user(ptr
, buff
[i
], buff_size
[i
])) {
5153 ptr
+= buff_size
[i
];
5158 cmd_special_free(h
, c
);
5161 for (i
= 0; i
< sg_used
; i
++)
5170 static void check_ioctl_unit_attention(struct ctlr_info
*h
,
5171 struct CommandList
*c
)
5173 if (c
->err_info
->CommandStatus
== CMD_TARGET_STATUS
&&
5174 c
->err_info
->ScsiStatus
!= SAM_STAT_CHECK_CONDITION
)
5175 (void) check_for_unit_attention(h
, c
);
5178 static int increment_passthru_count(struct ctlr_info
*h
)
5180 unsigned long flags
;
5182 spin_lock_irqsave(&h
->passthru_count_lock
, flags
);
5183 if (h
->passthru_count
>= HPSA_MAX_CONCURRENT_PASSTHRUS
) {
5184 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5187 h
->passthru_count
++;
5188 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5192 static void decrement_passthru_count(struct ctlr_info
*h
)
5194 unsigned long flags
;
5196 spin_lock_irqsave(&h
->passthru_count_lock
, flags
);
5197 if (h
->passthru_count
<= 0) {
5198 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5199 /* not expecting to get here. */
5200 dev_warn(&h
->pdev
->dev
, "Bug detected, passthru_count seems to be incorrect.\n");
5203 h
->passthru_count
--;
5204 spin_unlock_irqrestore(&h
->passthru_count_lock
, flags
);
5210 static int hpsa_ioctl(struct scsi_device
*dev
, int cmd
, void *arg
)
5212 struct ctlr_info
*h
;
5213 void __user
*argp
= (void __user
*)arg
;
5216 h
= sdev_to_hba(dev
);
5219 case CCISS_DEREGDISK
:
5220 case CCISS_REGNEWDISK
:
5222 hpsa_scan_start(h
->scsi_host
);
5224 case CCISS_GETPCIINFO
:
5225 return hpsa_getpciinfo_ioctl(h
, argp
);
5226 case CCISS_GETDRIVVER
:
5227 return hpsa_getdrivver_ioctl(h
, argp
);
5228 case CCISS_PASSTHRU
:
5229 if (increment_passthru_count(h
))
5231 rc
= hpsa_passthru_ioctl(h
, argp
);
5232 decrement_passthru_count(h
);
5234 case CCISS_BIG_PASSTHRU
:
5235 if (increment_passthru_count(h
))
5237 rc
= hpsa_big_passthru_ioctl(h
, argp
);
5238 decrement_passthru_count(h
);
5245 static int hpsa_send_host_reset(struct ctlr_info
*h
, unsigned char *scsi3addr
,
5248 struct CommandList
*c
;
5253 /* fill_cmd can't fail here, no data buffer to map */
5254 (void) fill_cmd(c
, HPSA_DEVICE_RESET_MSG
, h
, NULL
, 0, 0,
5255 RAID_CTLR_LUNID
, TYPE_MSG
);
5256 c
->Request
.CDB
[1] = reset_type
; /* fill_cmd defaults to target reset */
5258 enqueue_cmd_and_start_io(h
, c
);
5259 /* Don't wait for completion, the reset won't complete. Don't free
5260 * the command either. This is the last command we will send before
5261 * re-initializing everything, so it doesn't matter and won't leak.
5266 static int fill_cmd(struct CommandList
*c
, u8 cmd
, struct ctlr_info
*h
,
5267 void *buff
, size_t size
, u16 page_code
, unsigned char *scsi3addr
,
5270 int pci_dir
= XFER_NONE
;
5271 struct CommandList
*a
; /* for commands to be aborted */
5273 c
->cmd_type
= CMD_IOCTL_PEND
;
5274 c
->Header
.ReplyQueue
= 0;
5275 if (buff
!= NULL
&& size
> 0) {
5276 c
->Header
.SGList
= 1;
5277 c
->Header
.SGTotal
= 1;
5279 c
->Header
.SGList
= 0;
5280 c
->Header
.SGTotal
= 0;
5282 c
->Header
.Tag
.lower
= c
->busaddr
;
5283 memcpy(c
->Header
.LUN
.LunAddrBytes
, scsi3addr
, 8);
5285 c
->Request
.Type
.Type
= cmd_type
;
5286 if (cmd_type
== TYPE_CMD
) {
5289 /* are we trying to read a vital product page */
5290 if (page_code
& VPD_PAGE
) {
5291 c
->Request
.CDB
[1] = 0x01;
5292 c
->Request
.CDB
[2] = (page_code
& 0xff);
5294 c
->Request
.CDBLen
= 6;
5295 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5296 c
->Request
.Type
.Direction
= XFER_READ
;
5297 c
->Request
.Timeout
= 0;
5298 c
->Request
.CDB
[0] = HPSA_INQUIRY
;
5299 c
->Request
.CDB
[4] = size
& 0xFF;
5301 case HPSA_REPORT_LOG
:
5302 case HPSA_REPORT_PHYS
:
5303 /* Talking to controller so It's a physical command
5304 mode = 00 target = 0. Nothing to write.
5306 c
->Request
.CDBLen
= 12;
5307 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5308 c
->Request
.Type
.Direction
= XFER_READ
;
5309 c
->Request
.Timeout
= 0;
5310 c
->Request
.CDB
[0] = cmd
;
5311 c
->Request
.CDB
[6] = (size
>> 24) & 0xFF; /* MSB */
5312 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5313 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5314 c
->Request
.CDB
[9] = size
& 0xFF;
5316 case HPSA_CACHE_FLUSH
:
5317 c
->Request
.CDBLen
= 12;
5318 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5319 c
->Request
.Type
.Direction
= XFER_WRITE
;
5320 c
->Request
.Timeout
= 0;
5321 c
->Request
.CDB
[0] = BMIC_WRITE
;
5322 c
->Request
.CDB
[6] = BMIC_CACHE_FLUSH
;
5323 c
->Request
.CDB
[7] = (size
>> 8) & 0xFF;
5324 c
->Request
.CDB
[8] = size
& 0xFF;
5326 case TEST_UNIT_READY
:
5327 c
->Request
.CDBLen
= 6;
5328 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5329 c
->Request
.Type
.Direction
= XFER_NONE
;
5330 c
->Request
.Timeout
= 0;
5332 case HPSA_GET_RAID_MAP
:
5333 c
->Request
.CDBLen
= 12;
5334 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5335 c
->Request
.Type
.Direction
= XFER_READ
;
5336 c
->Request
.Timeout
= 0;
5337 c
->Request
.CDB
[0] = HPSA_CISS_READ
;
5338 c
->Request
.CDB
[1] = cmd
;
5339 c
->Request
.CDB
[6] = (size
>> 24) & 0xFF; /* MSB */
5340 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5341 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5342 c
->Request
.CDB
[9] = size
& 0xFF;
5344 case BMIC_SENSE_CONTROLLER_PARAMETERS
:
5345 c
->Request
.CDBLen
= 10;
5346 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5347 c
->Request
.Type
.Direction
= XFER_READ
;
5348 c
->Request
.Timeout
= 0;
5349 c
->Request
.CDB
[0] = BMIC_READ
;
5350 c
->Request
.CDB
[6] = BMIC_SENSE_CONTROLLER_PARAMETERS
;
5351 c
->Request
.CDB
[7] = (size
>> 16) & 0xFF;
5352 c
->Request
.CDB
[8] = (size
>> 8) & 0xFF;
5355 dev_warn(&h
->pdev
->dev
, "unknown command 0x%c\n", cmd
);
5359 } else if (cmd_type
== TYPE_MSG
) {
5362 case HPSA_DEVICE_RESET_MSG
:
5363 c
->Request
.CDBLen
= 16;
5364 c
->Request
.Type
.Type
= 1; /* It is a MSG not a CMD */
5365 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5366 c
->Request
.Type
.Direction
= XFER_NONE
;
5367 c
->Request
.Timeout
= 0; /* Don't time out */
5368 memset(&c
->Request
.CDB
[0], 0, sizeof(c
->Request
.CDB
));
5369 c
->Request
.CDB
[0] = cmd
;
5370 c
->Request
.CDB
[1] = HPSA_RESET_TYPE_LUN
;
5371 /* If bytes 4-7 are zero, it means reset the */
5373 c
->Request
.CDB
[4] = 0x00;
5374 c
->Request
.CDB
[5] = 0x00;
5375 c
->Request
.CDB
[6] = 0x00;
5376 c
->Request
.CDB
[7] = 0x00;
5378 case HPSA_ABORT_MSG
:
5379 a
= buff
; /* point to command to be aborted */
5380 dev_dbg(&h
->pdev
->dev
, "Abort Tag:0x%08x:%08x using request Tag:0x%08x:%08x\n",
5381 a
->Header
.Tag
.upper
, a
->Header
.Tag
.lower
,
5382 c
->Header
.Tag
.upper
, c
->Header
.Tag
.lower
);
5383 c
->Request
.CDBLen
= 16;
5384 c
->Request
.Type
.Type
= TYPE_MSG
;
5385 c
->Request
.Type
.Attribute
= ATTR_SIMPLE
;
5386 c
->Request
.Type
.Direction
= XFER_WRITE
;
5387 c
->Request
.Timeout
= 0; /* Don't time out */
5388 c
->Request
.CDB
[0] = HPSA_TASK_MANAGEMENT
;
5389 c
->Request
.CDB
[1] = HPSA_TMF_ABORT_TASK
;
5390 c
->Request
.CDB
[2] = 0x00; /* reserved */
5391 c
->Request
.CDB
[3] = 0x00; /* reserved */
5392 /* Tag to abort goes in CDB[4]-CDB[11] */
5393 c
->Request
.CDB
[4] = a
->Header
.Tag
.lower
& 0xFF;
5394 c
->Request
.CDB
[5] = (a
->Header
.Tag
.lower
>> 8) & 0xFF;
5395 c
->Request
.CDB
[6] = (a
->Header
.Tag
.lower
>> 16) & 0xFF;
5396 c
->Request
.CDB
[7] = (a
->Header
.Tag
.lower
>> 24) & 0xFF;
5397 c
->Request
.CDB
[8] = a
->Header
.Tag
.upper
& 0xFF;
5398 c
->Request
.CDB
[9] = (a
->Header
.Tag
.upper
>> 8) & 0xFF;
5399 c
->Request
.CDB
[10] = (a
->Header
.Tag
.upper
>> 16) & 0xFF;
5400 c
->Request
.CDB
[11] = (a
->Header
.Tag
.upper
>> 24) & 0xFF;
5401 c
->Request
.CDB
[12] = 0x00; /* reserved */
5402 c
->Request
.CDB
[13] = 0x00; /* reserved */
5403 c
->Request
.CDB
[14] = 0x00; /* reserved */
5404 c
->Request
.CDB
[15] = 0x00; /* reserved */
5407 dev_warn(&h
->pdev
->dev
, "unknown message type %d\n",
5412 dev_warn(&h
->pdev
->dev
, "unknown command type %d\n", cmd_type
);
5416 switch (c
->Request
.Type
.Direction
) {
5418 pci_dir
= PCI_DMA_FROMDEVICE
;
5421 pci_dir
= PCI_DMA_TODEVICE
;
5424 pci_dir
= PCI_DMA_NONE
;
5427 pci_dir
= PCI_DMA_BIDIRECTIONAL
;
5429 if (hpsa_map_one(h
->pdev
, c
, buff
, size
, pci_dir
))
5435 * Map (physical) PCI mem into (virtual) kernel space
5437 static void __iomem
*remap_pci_mem(ulong base
, ulong size
)
5439 ulong page_base
= ((ulong
) base
) & PAGE_MASK
;
5440 ulong page_offs
= ((ulong
) base
) - page_base
;
5441 void __iomem
*page_remapped
= ioremap_nocache(page_base
,
5444 return page_remapped
? (page_remapped
+ page_offs
) : NULL
;
5447 /* Takes cmds off the submission queue and sends them to the hardware,
5448 * then puts them on the queue of cmds waiting for completion.
5449 * Assumes h->lock is held
5451 static void start_io(struct ctlr_info
*h
, unsigned long *flags
)
5453 struct CommandList
*c
;
5455 while (!list_empty(&h
->reqQ
)) {
5456 c
= list_entry(h
->reqQ
.next
, struct CommandList
, list
);
5457 /* can't do anything if fifo is full */
5458 if ((h
->access
.fifo_full(h
))) {
5459 h
->fifo_recently_full
= 1;
5460 dev_warn(&h
->pdev
->dev
, "fifo full\n");
5463 h
->fifo_recently_full
= 0;
5465 /* Get the first entry from the Request Q */
5469 /* Put job onto the completed Q */
5472 /* Must increment commands_outstanding before unlocking
5473 * and submitting to avoid race checking for fifo full
5476 h
->commands_outstanding
++;
5478 /* Tell the controller execute command */
5479 spin_unlock_irqrestore(&h
->lock
, *flags
);
5480 h
->access
.submit_command(h
, c
);
5481 spin_lock_irqsave(&h
->lock
, *flags
);
5485 static void lock_and_start_io(struct ctlr_info
*h
)
5487 unsigned long flags
;
5489 spin_lock_irqsave(&h
->lock
, flags
);
5490 start_io(h
, &flags
);
5491 spin_unlock_irqrestore(&h
->lock
, flags
);
5494 static inline unsigned long get_next_completion(struct ctlr_info
*h
, u8 q
)
5496 return h
->access
.command_completed(h
, q
);
5499 static inline bool interrupt_pending(struct ctlr_info
*h
)
5501 return h
->access
.intr_pending(h
);
5504 static inline long interrupt_not_for_us(struct ctlr_info
*h
)
5506 return (h
->access
.intr_pending(h
) == 0) ||
5507 (h
->interrupts_enabled
== 0);
5510 static inline int bad_tag(struct ctlr_info
*h
, u32 tag_index
,
5513 if (unlikely(tag_index
>= h
->nr_cmds
)) {
5514 dev_warn(&h
->pdev
->dev
, "bad tag 0x%08x ignored.\n", raw_tag
);
5520 static inline void finish_cmd(struct CommandList
*c
)
5522 unsigned long flags
;
5523 int io_may_be_stalled
= 0;
5524 struct ctlr_info
*h
= c
->h
;
5526 spin_lock_irqsave(&h
->lock
, flags
);
5530 * Check for possibly stalled i/o.
5532 * If a fifo_full condition is encountered, requests will back up
5533 * in h->reqQ. This queue is only emptied out by start_io which is
5534 * only called when a new i/o request comes in. If no i/o's are
5535 * forthcoming, the i/o's in h->reqQ can get stuck. So we call
5536 * start_io from here if we detect such a danger.
5538 * Normally, we shouldn't hit this case, but pounding on the
5539 * CCISS_PASSTHRU ioctl can provoke it. Only call start_io if
5540 * commands_outstanding is low. We want to avoid calling
5541 * start_io from in here as much as possible, and esp. don't
5542 * want to get in a cycle where we call start_io every time
5545 if (unlikely(h
->fifo_recently_full
) &&
5546 h
->commands_outstanding
< 5)
5547 io_may_be_stalled
= 1;
5549 spin_unlock_irqrestore(&h
->lock
, flags
);
5551 dial_up_lockup_detection_on_fw_flash_complete(c
->h
, c
);
5552 if (likely(c
->cmd_type
== CMD_IOACCEL1
|| c
->cmd_type
== CMD_SCSI
5553 || c
->cmd_type
== CMD_IOACCEL2
))
5554 complete_scsi_command(c
);
5555 else if (c
->cmd_type
== CMD_IOCTL_PEND
)
5556 complete(c
->waiting
);
5557 if (unlikely(io_may_be_stalled
))
5558 lock_and_start_io(h
);
5561 static inline u32
hpsa_tag_contains_index(u32 tag
)
5563 return tag
& DIRECT_LOOKUP_BIT
;
5566 static inline u32
hpsa_tag_to_index(u32 tag
)
5568 return tag
>> DIRECT_LOOKUP_SHIFT
;
5572 static inline u32
hpsa_tag_discard_error_bits(struct ctlr_info
*h
, u32 tag
)
5574 #define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
5575 #define HPSA_SIMPLE_ERROR_BITS 0x03
5576 if (unlikely(!(h
->transMethod
& CFGTBL_Trans_Performant
)))
5577 return tag
& ~HPSA_SIMPLE_ERROR_BITS
;
5578 return tag
& ~HPSA_PERF_ERROR_BITS
;
5581 /* process completion of an indexed ("direct lookup") command */
5582 static inline void process_indexed_cmd(struct ctlr_info
*h
,
5586 struct CommandList
*c
;
5588 tag_index
= hpsa_tag_to_index(raw_tag
);
5589 if (!bad_tag(h
, tag_index
, raw_tag
)) {
5590 c
= h
->cmd_pool
+ tag_index
;
5595 /* process completion of a non-indexed command */
5596 static inline void process_nonindexed_cmd(struct ctlr_info
*h
,
5600 struct CommandList
*c
= NULL
;
5601 unsigned long flags
;
5603 tag
= hpsa_tag_discard_error_bits(h
, raw_tag
);
5604 spin_lock_irqsave(&h
->lock
, flags
);
5605 list_for_each_entry(c
, &h
->cmpQ
, list
) {
5606 if ((c
->busaddr
& 0xFFFFFFE0) == (tag
& 0xFFFFFFE0)) {
5607 spin_unlock_irqrestore(&h
->lock
, flags
);
5612 spin_unlock_irqrestore(&h
->lock
, flags
);
5613 bad_tag(h
, h
->nr_cmds
+ 1, raw_tag
);
5616 /* Some controllers, like p400, will give us one interrupt
5617 * after a soft reset, even if we turned interrupts off.
5618 * Only need to check for this in the hpsa_xxx_discard_completions
5621 static int ignore_bogus_interrupt(struct ctlr_info
*h
)
5623 if (likely(!reset_devices
))
5626 if (likely(h
->interrupts_enabled
))
5629 dev_info(&h
->pdev
->dev
, "Received interrupt while interrupts disabled "
5630 "(known firmware bug.) Ignoring.\n");
5636 * Convert &h->q[x] (passed to interrupt handlers) back to h.
5637 * Relies on (h-q[x] == x) being true for x such that
5638 * 0 <= x < MAX_REPLY_QUEUES.
5640 static struct ctlr_info
*queue_to_hba(u8
*queue
)
5642 return container_of((queue
- *queue
), struct ctlr_info
, q
[0]);
5645 static irqreturn_t
hpsa_intx_discard_completions(int irq
, void *queue
)
5647 struct ctlr_info
*h
= queue_to_hba(queue
);
5648 u8 q
= *(u8
*) queue
;
5651 if (ignore_bogus_interrupt(h
))
5654 if (interrupt_not_for_us(h
))
5656 h
->last_intr_timestamp
= get_jiffies_64();
5657 while (interrupt_pending(h
)) {
5658 raw_tag
= get_next_completion(h
, q
);
5659 while (raw_tag
!= FIFO_EMPTY
)
5660 raw_tag
= next_command(h
, q
);
5665 static irqreturn_t
hpsa_msix_discard_completions(int irq
, void *queue
)
5667 struct ctlr_info
*h
= queue_to_hba(queue
);
5669 u8 q
= *(u8
*) queue
;
5671 if (ignore_bogus_interrupt(h
))
5674 h
->last_intr_timestamp
= get_jiffies_64();
5675 raw_tag
= get_next_completion(h
, q
);
5676 while (raw_tag
!= FIFO_EMPTY
)
5677 raw_tag
= next_command(h
, q
);
5681 static irqreturn_t
do_hpsa_intr_intx(int irq
, void *queue
)
5683 struct ctlr_info
*h
= queue_to_hba((u8
*) queue
);
5685 u8 q
= *(u8
*) queue
;
5687 if (interrupt_not_for_us(h
))
5689 h
->last_intr_timestamp
= get_jiffies_64();
5690 while (interrupt_pending(h
)) {
5691 raw_tag
= get_next_completion(h
, q
);
5692 while (raw_tag
!= FIFO_EMPTY
) {
5693 if (likely(hpsa_tag_contains_index(raw_tag
)))
5694 process_indexed_cmd(h
, raw_tag
);
5696 process_nonindexed_cmd(h
, raw_tag
);
5697 raw_tag
= next_command(h
, q
);
5703 static irqreturn_t
do_hpsa_intr_msi(int irq
, void *queue
)
5705 struct ctlr_info
*h
= queue_to_hba(queue
);
5707 u8 q
= *(u8
*) queue
;
5709 h
->last_intr_timestamp
= get_jiffies_64();
5710 raw_tag
= get_next_completion(h
, q
);
5711 while (raw_tag
!= FIFO_EMPTY
) {
5712 if (likely(hpsa_tag_contains_index(raw_tag
)))
5713 process_indexed_cmd(h
, raw_tag
);
5715 process_nonindexed_cmd(h
, raw_tag
);
5716 raw_tag
= next_command(h
, q
);
5721 /* Send a message CDB to the firmware. Careful, this only works
5722 * in simple mode, not performant mode due to the tag lookup.
5723 * We only ever use this immediately after a controller reset.
5725 static int hpsa_message(struct pci_dev
*pdev
, unsigned char opcode
,
5729 struct CommandListHeader CommandHeader
;
5730 struct RequestBlock Request
;
5731 struct ErrDescriptor ErrorDescriptor
;
5733 struct Command
*cmd
;
5734 static const size_t cmd_sz
= sizeof(*cmd
) +
5735 sizeof(cmd
->ErrorDescriptor
);
5737 uint32_t paddr32
, tag
;
5738 void __iomem
*vaddr
;
5741 vaddr
= pci_ioremap_bar(pdev
, 0);
5745 /* The Inbound Post Queue only accepts 32-bit physical addresses for the
5746 * CCISS commands, so they must be allocated from the lower 4GiB of
5749 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32));
5755 cmd
= pci_alloc_consistent(pdev
, cmd_sz
, &paddr64
);
5761 /* This must fit, because of the 32-bit consistent DMA mask. Also,
5762 * although there's no guarantee, we assume that the address is at
5763 * least 4-byte aligned (most likely, it's page-aligned).
5767 cmd
->CommandHeader
.ReplyQueue
= 0;
5768 cmd
->CommandHeader
.SGList
= 0;
5769 cmd
->CommandHeader
.SGTotal
= 0;
5770 cmd
->CommandHeader
.Tag
.lower
= paddr32
;
5771 cmd
->CommandHeader
.Tag
.upper
= 0;
5772 memset(&cmd
->CommandHeader
.LUN
.LunAddrBytes
, 0, 8);
5774 cmd
->Request
.CDBLen
= 16;
5775 cmd
->Request
.Type
.Type
= TYPE_MSG
;
5776 cmd
->Request
.Type
.Attribute
= ATTR_HEADOFQUEUE
;
5777 cmd
->Request
.Type
.Direction
= XFER_NONE
;
5778 cmd
->Request
.Timeout
= 0; /* Don't time out */
5779 cmd
->Request
.CDB
[0] = opcode
;
5780 cmd
->Request
.CDB
[1] = type
;
5781 memset(&cmd
->Request
.CDB
[2], 0, 14); /* rest of the CDB is reserved */
5782 cmd
->ErrorDescriptor
.Addr
.lower
= paddr32
+ sizeof(*cmd
);
5783 cmd
->ErrorDescriptor
.Addr
.upper
= 0;
5784 cmd
->ErrorDescriptor
.Len
= sizeof(struct ErrorInfo
);
5786 writel(paddr32
, vaddr
+ SA5_REQUEST_PORT_OFFSET
);
5788 for (i
= 0; i
< HPSA_MSG_SEND_RETRY_LIMIT
; i
++) {
5789 tag
= readl(vaddr
+ SA5_REPLY_PORT_OFFSET
);
5790 if ((tag
& ~HPSA_SIMPLE_ERROR_BITS
) == paddr32
)
5792 msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS
);
5797 /* we leak the DMA buffer here ... no choice since the controller could
5798 * still complete the command.
5800 if (i
== HPSA_MSG_SEND_RETRY_LIMIT
) {
5801 dev_err(&pdev
->dev
, "controller message %02x:%02x timed out\n",
5806 pci_free_consistent(pdev
, cmd_sz
, cmd
, paddr64
);
5808 if (tag
& HPSA_ERROR_BIT
) {
5809 dev_err(&pdev
->dev
, "controller message %02x:%02x failed\n",
5814 dev_info(&pdev
->dev
, "controller message %02x:%02x succeeded\n",
5819 #define hpsa_noop(p) hpsa_message(p, 3, 0)
5821 static int hpsa_controller_hard_reset(struct pci_dev
*pdev
,
5822 void * __iomem vaddr
, u32 use_doorbell
)
5828 /* For everything after the P600, the PCI power state method
5829 * of resetting the controller doesn't work, so we have this
5830 * other way using the doorbell register.
5832 dev_info(&pdev
->dev
, "using doorbell to reset controller\n");
5833 writel(use_doorbell
, vaddr
+ SA5_DOORBELL
);
5835 /* PMC hardware guys tell us we need a 10 second delay after
5836 * doorbell reset and before any attempt to talk to the board
5837 * at all to ensure that this actually works and doesn't fall
5838 * over in some weird corner cases.
5841 } else { /* Try to do it the PCI power state way */
5843 /* Quoting from the Open CISS Specification: "The Power
5844 * Management Control/Status Register (CSR) controls the power
5845 * state of the device. The normal operating state is D0,
5846 * CSR=00h. The software off state is D3, CSR=03h. To reset
5847 * the controller, place the interface device in D3 then to D0,
5848 * this causes a secondary PCI reset which will reset the
5851 pos
= pci_find_capability(pdev
, PCI_CAP_ID_PM
);
5854 "hpsa_reset_controller: "
5855 "PCI PM not supported\n");
5858 dev_info(&pdev
->dev
, "using PCI PM to reset controller\n");
5859 /* enter the D3hot power management state */
5860 pci_read_config_word(pdev
, pos
+ PCI_PM_CTRL
, &pmcsr
);
5861 pmcsr
&= ~PCI_PM_CTRL_STATE_MASK
;
5863 pci_write_config_word(pdev
, pos
+ PCI_PM_CTRL
, pmcsr
);
5867 /* enter the D0 power management state */
5868 pmcsr
&= ~PCI_PM_CTRL_STATE_MASK
;
5870 pci_write_config_word(pdev
, pos
+ PCI_PM_CTRL
, pmcsr
);
5873 * The P600 requires a small delay when changing states.
5874 * Otherwise we may think the board did not reset and we bail.
5875 * This for kdump only and is particular to the P600.
5882 static void init_driver_version(char *driver_version
, int len
)
5884 memset(driver_version
, 0, len
);
5885 strncpy(driver_version
, HPSA
" " HPSA_DRIVER_VERSION
, len
- 1);
5888 static int write_driver_ver_to_cfgtable(struct CfgTable __iomem
*cfgtable
)
5890 char *driver_version
;
5891 int i
, size
= sizeof(cfgtable
->driver_version
);
5893 driver_version
= kmalloc(size
, GFP_KERNEL
);
5894 if (!driver_version
)
5897 init_driver_version(driver_version
, size
);
5898 for (i
= 0; i
< size
; i
++)
5899 writeb(driver_version
[i
], &cfgtable
->driver_version
[i
]);
5900 kfree(driver_version
);
5904 static void read_driver_ver_from_cfgtable(struct CfgTable __iomem
*cfgtable
,
5905 unsigned char *driver_ver
)
5909 for (i
= 0; i
< sizeof(cfgtable
->driver_version
); i
++)
5910 driver_ver
[i
] = readb(&cfgtable
->driver_version
[i
]);
5913 static int controller_reset_failed(struct CfgTable __iomem
*cfgtable
)
5916 char *driver_ver
, *old_driver_ver
;
5917 int rc
, size
= sizeof(cfgtable
->driver_version
);
5919 old_driver_ver
= kmalloc(2 * size
, GFP_KERNEL
);
5920 if (!old_driver_ver
)
5922 driver_ver
= old_driver_ver
+ size
;
5924 /* After a reset, the 32 bytes of "driver version" in the cfgtable
5925 * should have been changed, otherwise we know the reset failed.
5927 init_driver_version(old_driver_ver
, size
);
5928 read_driver_ver_from_cfgtable(cfgtable
, driver_ver
);
5929 rc
= !memcmp(driver_ver
, old_driver_ver
, size
);
5930 kfree(old_driver_ver
);
5933 /* This does a hard reset of the controller using PCI power management
5934 * states or the using the doorbell register.
5936 static int hpsa_kdump_hard_reset_controller(struct pci_dev
*pdev
)
5940 u64 cfg_base_addr_index
;
5941 void __iomem
*vaddr
;
5942 unsigned long paddr
;
5943 u32 misc_fw_support
;
5945 struct CfgTable __iomem
*cfgtable
;
5948 u16 command_register
;
5950 /* For controllers as old as the P600, this is very nearly
5953 * pci_save_state(pci_dev);
5954 * pci_set_power_state(pci_dev, PCI_D3hot);
5955 * pci_set_power_state(pci_dev, PCI_D0);
5956 * pci_restore_state(pci_dev);
5958 * For controllers newer than the P600, the pci power state
5959 * method of resetting doesn't work so we have another way
5960 * using the doorbell register.
5963 rc
= hpsa_lookup_board_id(pdev
, &board_id
);
5964 if (rc
< 0 || !ctlr_is_resettable(board_id
)) {
5965 dev_warn(&pdev
->dev
, "Not resetting device.\n");
5969 /* if controller is soft- but not hard resettable... */
5970 if (!ctlr_is_hard_resettable(board_id
))
5971 return -ENOTSUPP
; /* try soft reset later. */
5973 /* Save the PCI command register */
5974 pci_read_config_word(pdev
, 4, &command_register
);
5975 /* Turn the board off. This is so that later pci_restore_state()
5976 * won't turn the board on before the rest of config space is ready.
5978 pci_disable_device(pdev
);
5979 pci_save_state(pdev
);
5981 /* find the first memory BAR, so we can find the cfg table */
5982 rc
= hpsa_pci_find_memory_BAR(pdev
, &paddr
);
5985 vaddr
= remap_pci_mem(paddr
, 0x250);
5989 /* find cfgtable in order to check if reset via doorbell is supported */
5990 rc
= hpsa_find_cfg_addrs(pdev
, vaddr
, &cfg_base_addr
,
5991 &cfg_base_addr_index
, &cfg_offset
);
5994 cfgtable
= remap_pci_mem(pci_resource_start(pdev
,
5995 cfg_base_addr_index
) + cfg_offset
, sizeof(*cfgtable
));
6000 rc
= write_driver_ver_to_cfgtable(cfgtable
);
6004 /* If reset via doorbell register is supported, use that.
6005 * There are two such methods. Favor the newest method.
6007 misc_fw_support
= readl(&cfgtable
->misc_fw_support
);
6008 use_doorbell
= misc_fw_support
& MISC_FW_DOORBELL_RESET2
;
6010 use_doorbell
= DOORBELL_CTLR_RESET2
;
6012 use_doorbell
= misc_fw_support
& MISC_FW_DOORBELL_RESET
;
6014 dev_warn(&pdev
->dev
, "Soft reset not supported. "
6015 "Firmware update is required.\n");
6016 rc
= -ENOTSUPP
; /* try soft reset */
6017 goto unmap_cfgtable
;
6021 rc
= hpsa_controller_hard_reset(pdev
, vaddr
, use_doorbell
);
6023 goto unmap_cfgtable
;
6025 pci_restore_state(pdev
);
6026 rc
= pci_enable_device(pdev
);
6028 dev_warn(&pdev
->dev
, "failed to enable device.\n");
6029 goto unmap_cfgtable
;
6031 pci_write_config_word(pdev
, 4, command_register
);
6033 /* Some devices (notably the HP Smart Array 5i Controller)
6034 need a little pause here */
6035 msleep(HPSA_POST_RESET_PAUSE_MSECS
);
6037 rc
= hpsa_wait_for_board_state(pdev
, vaddr
, BOARD_READY
);
6039 dev_warn(&pdev
->dev
,
6040 "failed waiting for board to become ready "
6041 "after hard reset\n");
6042 goto unmap_cfgtable
;
6045 rc
= controller_reset_failed(vaddr
);
6047 goto unmap_cfgtable
;
6049 dev_warn(&pdev
->dev
, "Unable to successfully reset "
6050 "controller. Will try soft reset.\n");
6053 dev_info(&pdev
->dev
, "board ready after hard reset.\n");
6065 * We cannot read the structure directly, for portability we must use
6067 * This is for debug only.
6069 static void print_cfg_table(struct device
*dev
, struct CfgTable
*tb
)
6075 dev_info(dev
, "Controller Configuration information\n");
6076 dev_info(dev
, "------------------------------------\n");
6077 for (i
= 0; i
< 4; i
++)
6078 temp_name
[i
] = readb(&(tb
->Signature
[i
]));
6079 temp_name
[4] = '\0';
6080 dev_info(dev
, " Signature = %s\n", temp_name
);
6081 dev_info(dev
, " Spec Number = %d\n", readl(&(tb
->SpecValence
)));
6082 dev_info(dev
, " Transport methods supported = 0x%x\n",
6083 readl(&(tb
->TransportSupport
)));
6084 dev_info(dev
, " Transport methods active = 0x%x\n",
6085 readl(&(tb
->TransportActive
)));
6086 dev_info(dev
, " Requested transport Method = 0x%x\n",
6087 readl(&(tb
->HostWrite
.TransportRequest
)));
6088 dev_info(dev
, " Coalesce Interrupt Delay = 0x%x\n",
6089 readl(&(tb
->HostWrite
.CoalIntDelay
)));
6090 dev_info(dev
, " Coalesce Interrupt Count = 0x%x\n",
6091 readl(&(tb
->HostWrite
.CoalIntCount
)));
6092 dev_info(dev
, " Max outstanding commands = 0x%d\n",
6093 readl(&(tb
->CmdsOutMax
)));
6094 dev_info(dev
, " Bus Types = 0x%x\n", readl(&(tb
->BusTypes
)));
6095 for (i
= 0; i
< 16; i
++)
6096 temp_name
[i
] = readb(&(tb
->ServerName
[i
]));
6097 temp_name
[16] = '\0';
6098 dev_info(dev
, " Server Name = %s\n", temp_name
);
6099 dev_info(dev
, " Heartbeat Counter = 0x%x\n\n\n",
6100 readl(&(tb
->HeartBeat
)));
6101 #endif /* HPSA_DEBUG */
6104 static int find_PCI_BAR_index(struct pci_dev
*pdev
, unsigned long pci_bar_addr
)
6106 int i
, offset
, mem_type
, bar_type
;
6108 if (pci_bar_addr
== PCI_BASE_ADDRESS_0
) /* looking for BAR zero? */
6111 for (i
= 0; i
< DEVICE_COUNT_RESOURCE
; i
++) {
6112 bar_type
= pci_resource_flags(pdev
, i
) & PCI_BASE_ADDRESS_SPACE
;
6113 if (bar_type
== PCI_BASE_ADDRESS_SPACE_IO
)
6116 mem_type
= pci_resource_flags(pdev
, i
) &
6117 PCI_BASE_ADDRESS_MEM_TYPE_MASK
;
6119 case PCI_BASE_ADDRESS_MEM_TYPE_32
:
6120 case PCI_BASE_ADDRESS_MEM_TYPE_1M
:
6121 offset
+= 4; /* 32 bit */
6123 case PCI_BASE_ADDRESS_MEM_TYPE_64
:
6126 default: /* reserved in PCI 2.2 */
6127 dev_warn(&pdev
->dev
,
6128 "base address is invalid\n");
6133 if (offset
== pci_bar_addr
- PCI_BASE_ADDRESS_0
)
6139 /* If MSI/MSI-X is supported by the kernel we will try to enable it on
6140 * controllers that are capable. If not, we use IO-APIC mode.
6143 static void hpsa_interrupt_mode(struct ctlr_info
*h
)
6145 #ifdef CONFIG_PCI_MSI
6147 struct msix_entry hpsa_msix_entries
[MAX_REPLY_QUEUES
];
6149 for (i
= 0; i
< MAX_REPLY_QUEUES
; i
++) {
6150 hpsa_msix_entries
[i
].vector
= 0;
6151 hpsa_msix_entries
[i
].entry
= i
;
6154 /* Some boards advertise MSI but don't really support it */
6155 if ((h
->board_id
== 0x40700E11) || (h
->board_id
== 0x40800E11) ||
6156 (h
->board_id
== 0x40820E11) || (h
->board_id
== 0x40830E11))
6157 goto default_int_mode
;
6158 if (pci_find_capability(h
->pdev
, PCI_CAP_ID_MSIX
)) {
6159 dev_info(&h
->pdev
->dev
, "MSIX\n");
6160 h
->msix_vector
= MAX_REPLY_QUEUES
;
6161 if (h
->msix_vector
> num_online_cpus())
6162 h
->msix_vector
= num_online_cpus();
6163 err
= pci_enable_msix(h
->pdev
, hpsa_msix_entries
,
6166 dev_warn(&h
->pdev
->dev
, "only %d MSI-X vectors "
6167 "available\n", err
);
6168 h
->msix_vector
= err
;
6169 err
= pci_enable_msix(h
->pdev
, hpsa_msix_entries
,
6173 for (i
= 0; i
< h
->msix_vector
; i
++)
6174 h
->intr
[i
] = hpsa_msix_entries
[i
].vector
;
6177 dev_warn(&h
->pdev
->dev
, "MSI-X init failed %d\n",
6180 goto default_int_mode
;
6183 if (pci_find_capability(h
->pdev
, PCI_CAP_ID_MSI
)) {
6184 dev_info(&h
->pdev
->dev
, "MSI\n");
6185 if (!pci_enable_msi(h
->pdev
))
6188 dev_warn(&h
->pdev
->dev
, "MSI init failed\n");
6191 #endif /* CONFIG_PCI_MSI */
6192 /* if we get here we're going to use the default interrupt mode */
6193 h
->intr
[h
->intr_mode
] = h
->pdev
->irq
;
6196 static int hpsa_lookup_board_id(struct pci_dev
*pdev
, u32
*board_id
)
6199 u32 subsystem_vendor_id
, subsystem_device_id
;
6201 subsystem_vendor_id
= pdev
->subsystem_vendor
;
6202 subsystem_device_id
= pdev
->subsystem_device
;
6203 *board_id
= ((subsystem_device_id
<< 16) & 0xffff0000) |
6204 subsystem_vendor_id
;
6206 for (i
= 0; i
< ARRAY_SIZE(products
); i
++)
6207 if (*board_id
== products
[i
].board_id
)
6210 if ((subsystem_vendor_id
!= PCI_VENDOR_ID_HP
&&
6211 subsystem_vendor_id
!= PCI_VENDOR_ID_COMPAQ
) ||
6213 dev_warn(&pdev
->dev
, "unrecognized board ID: "
6214 "0x%08x, ignoring.\n", *board_id
);
6217 return ARRAY_SIZE(products
) - 1; /* generic unknown smart array */
6220 static int hpsa_pci_find_memory_BAR(struct pci_dev
*pdev
,
6221 unsigned long *memory_bar
)
6225 for (i
= 0; i
< DEVICE_COUNT_RESOURCE
; i
++)
6226 if (pci_resource_flags(pdev
, i
) & IORESOURCE_MEM
) {
6227 /* addressing mode bits already removed */
6228 *memory_bar
= pci_resource_start(pdev
, i
);
6229 dev_dbg(&pdev
->dev
, "memory BAR = %lx\n",
6233 dev_warn(&pdev
->dev
, "no memory BAR found\n");
6237 static int hpsa_wait_for_board_state(struct pci_dev
*pdev
, void __iomem
*vaddr
,
6243 iterations
= HPSA_BOARD_READY_ITERATIONS
;
6245 iterations
= HPSA_BOARD_NOT_READY_ITERATIONS
;
6247 for (i
= 0; i
< iterations
; i
++) {
6248 scratchpad
= readl(vaddr
+ SA5_SCRATCHPAD_OFFSET
);
6249 if (wait_for_ready
) {
6250 if (scratchpad
== HPSA_FIRMWARE_READY
)
6253 if (scratchpad
!= HPSA_FIRMWARE_READY
)
6256 msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS
);
6258 dev_warn(&pdev
->dev
, "board not ready, timed out.\n");
6262 static int hpsa_find_cfg_addrs(struct pci_dev
*pdev
, void __iomem
*vaddr
,
6263 u32
*cfg_base_addr
, u64
*cfg_base_addr_index
,
6266 *cfg_base_addr
= readl(vaddr
+ SA5_CTCFG_OFFSET
);
6267 *cfg_offset
= readl(vaddr
+ SA5_CTMEM_OFFSET
);
6268 *cfg_base_addr
&= (u32
) 0x0000ffff;
6269 *cfg_base_addr_index
= find_PCI_BAR_index(pdev
, *cfg_base_addr
);
6270 if (*cfg_base_addr_index
== -1) {
6271 dev_warn(&pdev
->dev
, "cannot find cfg_base_addr_index\n");
6277 static int hpsa_find_cfgtables(struct ctlr_info
*h
)
6281 u64 cfg_base_addr_index
;
6285 rc
= hpsa_find_cfg_addrs(h
->pdev
, h
->vaddr
, &cfg_base_addr
,
6286 &cfg_base_addr_index
, &cfg_offset
);
6289 h
->cfgtable
= remap_pci_mem(pci_resource_start(h
->pdev
,
6290 cfg_base_addr_index
) + cfg_offset
, sizeof(*h
->cfgtable
));
6293 rc
= write_driver_ver_to_cfgtable(h
->cfgtable
);
6296 /* Find performant mode table. */
6297 trans_offset
= readl(&h
->cfgtable
->TransMethodOffset
);
6298 h
->transtable
= remap_pci_mem(pci_resource_start(h
->pdev
,
6299 cfg_base_addr_index
)+cfg_offset
+trans_offset
,
6300 sizeof(*h
->transtable
));
6306 static void hpsa_get_max_perf_mode_cmds(struct ctlr_info
*h
)
6308 h
->max_commands
= readl(&(h
->cfgtable
->MaxPerformantModeCommands
));
6310 /* Limit commands in memory limited kdump scenario. */
6311 if (reset_devices
&& h
->max_commands
> 32)
6312 h
->max_commands
= 32;
6314 if (h
->max_commands
< 16) {
6315 dev_warn(&h
->pdev
->dev
, "Controller reports "
6316 "max supported commands of %d, an obvious lie. "
6317 "Using 16. Ensure that firmware is up to date.\n",
6319 h
->max_commands
= 16;
6323 /* Interrogate the hardware for some limits:
6324 * max commands, max SG elements without chaining, and with chaining,
6325 * SG chain block size, etc.
6327 static void hpsa_find_board_params(struct ctlr_info
*h
)
6329 hpsa_get_max_perf_mode_cmds(h
);
6330 h
->nr_cmds
= h
->max_commands
- 4; /* Allow room for some ioctls */
6331 h
->maxsgentries
= readl(&(h
->cfgtable
->MaxScatterGatherElements
));
6332 h
->fw_support
= readl(&(h
->cfgtable
->misc_fw_support
));
6334 * Limit in-command s/g elements to 32 save dma'able memory.
6335 * Howvever spec says if 0, use 31
6337 h
->max_cmd_sg_entries
= 31;
6338 if (h
->maxsgentries
> 512) {
6339 h
->max_cmd_sg_entries
= 32;
6340 h
->chainsize
= h
->maxsgentries
- h
->max_cmd_sg_entries
+ 1;
6341 h
->maxsgentries
--; /* save one for chain pointer */
6343 h
->maxsgentries
= 31; /* default to traditional values */
6347 /* Find out what task management functions are supported and cache */
6348 h
->TMFSupportFlags
= readl(&(h
->cfgtable
->TMFSupportFlags
));
6349 if (!(HPSATMF_PHYS_TASK_ABORT
& h
->TMFSupportFlags
))
6350 dev_warn(&h
->pdev
->dev
, "Physical aborts not supported\n");
6351 if (!(HPSATMF_LOG_TASK_ABORT
& h
->TMFSupportFlags
))
6352 dev_warn(&h
->pdev
->dev
, "Logical aborts not supported\n");
6355 static inline bool hpsa_CISS_signature_present(struct ctlr_info
*h
)
6357 if (!check_signature(h
->cfgtable
->Signature
, "CISS", 4)) {
6358 dev_warn(&h
->pdev
->dev
, "not a valid CISS config table\n");
6364 static inline void hpsa_set_driver_support_bits(struct ctlr_info
*h
)
6369 /* Need to enable prefetch in the SCSI core for 6400 in x86 */
6370 driver_support
= readl(&(h
->cfgtable
->driver_support
));
6371 driver_support
|= ENABLE_SCSI_PREFETCH
;
6373 driver_support
|= ENABLE_UNIT_ATTN
;
6374 writel(driver_support
, &(h
->cfgtable
->driver_support
));
6377 /* Disable DMA prefetch for the P600. Otherwise an ASIC bug may result
6378 * in a prefetch beyond physical memory.
6380 static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info
*h
)
6384 if (h
->board_id
!= 0x3225103C)
6386 dma_prefetch
= readl(h
->vaddr
+ I2O_DMA1_CFG
);
6387 dma_prefetch
|= 0x8000;
6388 writel(dma_prefetch
, h
->vaddr
+ I2O_DMA1_CFG
);
6391 static void hpsa_wait_for_clear_event_notify_ack(struct ctlr_info
*h
)
6395 unsigned long flags
;
6396 /* wait until the clear_event_notify bit 6 is cleared by controller. */
6397 for (i
= 0; i
< MAX_CONFIG_WAIT
; i
++) {
6398 spin_lock_irqsave(&h
->lock
, flags
);
6399 doorbell_value
= readl(h
->vaddr
+ SA5_DOORBELL
);
6400 spin_unlock_irqrestore(&h
->lock
, flags
);
6401 if (!(doorbell_value
& DOORBELL_CLEAR_EVENTS
))
6403 /* delay and try again */
6408 static void hpsa_wait_for_mode_change_ack(struct ctlr_info
*h
)
6412 unsigned long flags
;
6414 /* under certain very rare conditions, this can take awhile.
6415 * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
6416 * as we enter this code.)
6418 for (i
= 0; i
< MAX_CONFIG_WAIT
; i
++) {
6419 spin_lock_irqsave(&h
->lock
, flags
);
6420 doorbell_value
= readl(h
->vaddr
+ SA5_DOORBELL
);
6421 spin_unlock_irqrestore(&h
->lock
, flags
);
6422 if (!(doorbell_value
& CFGTBL_ChangeReq
))
6424 /* delay and try again */
6425 usleep_range(10000, 20000);
6429 static int hpsa_enter_simple_mode(struct ctlr_info
*h
)
6433 trans_support
= readl(&(h
->cfgtable
->TransportSupport
));
6434 if (!(trans_support
& SIMPLE_MODE
))
6437 h
->max_commands
= readl(&(h
->cfgtable
->CmdsOutMax
));
6439 /* Update the field, and then ring the doorbell */
6440 writel(CFGTBL_Trans_Simple
, &(h
->cfgtable
->HostWrite
.TransportRequest
));
6441 writel(0, &h
->cfgtable
->HostWrite
.command_pool_addr_hi
);
6442 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
6443 hpsa_wait_for_mode_change_ack(h
);
6444 print_cfg_table(&h
->pdev
->dev
, h
->cfgtable
);
6445 if (!(readl(&(h
->cfgtable
->TransportActive
)) & CFGTBL_Trans_Simple
))
6447 h
->transMethod
= CFGTBL_Trans_Simple
;
6450 dev_warn(&h
->pdev
->dev
, "unable to get board into simple mode\n");
6454 static int hpsa_pci_init(struct ctlr_info
*h
)
6456 int prod_index
, err
;
6458 prod_index
= hpsa_lookup_board_id(h
->pdev
, &h
->board_id
);
6461 h
->product_name
= products
[prod_index
].product_name
;
6462 h
->access
= *(products
[prod_index
].access
);
6464 pci_disable_link_state(h
->pdev
, PCIE_LINK_STATE_L0S
|
6465 PCIE_LINK_STATE_L1
| PCIE_LINK_STATE_CLKPM
);
6467 err
= pci_enable_device(h
->pdev
);
6469 dev_warn(&h
->pdev
->dev
, "unable to enable PCI device\n");
6473 /* Enable bus mastering (pci_disable_device may disable this) */
6474 pci_set_master(h
->pdev
);
6476 err
= pci_request_regions(h
->pdev
, HPSA
);
6478 dev_err(&h
->pdev
->dev
,
6479 "cannot obtain PCI resources, aborting\n");
6482 hpsa_interrupt_mode(h
);
6483 err
= hpsa_pci_find_memory_BAR(h
->pdev
, &h
->paddr
);
6485 goto err_out_free_res
;
6486 h
->vaddr
= remap_pci_mem(h
->paddr
, 0x250);
6489 goto err_out_free_res
;
6491 err
= hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_READY
);
6493 goto err_out_free_res
;
6494 err
= hpsa_find_cfgtables(h
);
6496 goto err_out_free_res
;
6497 hpsa_find_board_params(h
);
6499 if (!hpsa_CISS_signature_present(h
)) {
6501 goto err_out_free_res
;
6503 hpsa_set_driver_support_bits(h
);
6504 hpsa_p600_dma_prefetch_quirk(h
);
6505 err
= hpsa_enter_simple_mode(h
);
6507 goto err_out_free_res
;
6512 iounmap(h
->transtable
);
6514 iounmap(h
->cfgtable
);
6517 pci_disable_device(h
->pdev
);
6518 pci_release_regions(h
->pdev
);
6522 static void hpsa_hba_inquiry(struct ctlr_info
*h
)
6526 #define HBA_INQUIRY_BYTE_COUNT 64
6527 h
->hba_inquiry_data
= kmalloc(HBA_INQUIRY_BYTE_COUNT
, GFP_KERNEL
);
6528 if (!h
->hba_inquiry_data
)
6530 rc
= hpsa_scsi_do_inquiry(h
, RAID_CTLR_LUNID
, 0,
6531 h
->hba_inquiry_data
, HBA_INQUIRY_BYTE_COUNT
);
6533 kfree(h
->hba_inquiry_data
);
6534 h
->hba_inquiry_data
= NULL
;
6538 static int hpsa_init_reset_devices(struct pci_dev
*pdev
)
6545 /* Reset the controller with a PCI power-cycle or via doorbell */
6546 rc
= hpsa_kdump_hard_reset_controller(pdev
);
6548 /* -ENOTSUPP here means we cannot reset the controller
6549 * but it's already (and still) up and running in
6550 * "performant mode". Or, it might be 640x, which can't reset
6551 * due to concerns about shared bbwc between 6402/6404 pair.
6553 if (rc
== -ENOTSUPP
)
6554 return rc
; /* just try to do the kdump anyhow. */
6558 /* Now try to get the controller to respond to a no-op */
6559 dev_warn(&pdev
->dev
, "Waiting for controller to respond to no-op\n");
6560 for (i
= 0; i
< HPSA_POST_RESET_NOOP_RETRIES
; i
++) {
6561 if (hpsa_noop(pdev
) == 0)
6564 dev_warn(&pdev
->dev
, "no-op failed%s\n",
6565 (i
< 11 ? "; re-trying" : ""));
6570 static int hpsa_allocate_cmd_pool(struct ctlr_info
*h
)
6572 h
->cmd_pool_bits
= kzalloc(
6573 DIV_ROUND_UP(h
->nr_cmds
, BITS_PER_LONG
) *
6574 sizeof(unsigned long), GFP_KERNEL
);
6575 h
->cmd_pool
= pci_alloc_consistent(h
->pdev
,
6576 h
->nr_cmds
* sizeof(*h
->cmd_pool
),
6577 &(h
->cmd_pool_dhandle
));
6578 h
->errinfo_pool
= pci_alloc_consistent(h
->pdev
,
6579 h
->nr_cmds
* sizeof(*h
->errinfo_pool
),
6580 &(h
->errinfo_pool_dhandle
));
6581 if ((h
->cmd_pool_bits
== NULL
)
6582 || (h
->cmd_pool
== NULL
)
6583 || (h
->errinfo_pool
== NULL
)) {
6584 dev_err(&h
->pdev
->dev
, "out of memory in %s", __func__
);
6590 static void hpsa_free_cmd_pool(struct ctlr_info
*h
)
6592 kfree(h
->cmd_pool_bits
);
6594 pci_free_consistent(h
->pdev
,
6595 h
->nr_cmds
* sizeof(struct CommandList
),
6596 h
->cmd_pool
, h
->cmd_pool_dhandle
);
6597 if (h
->ioaccel2_cmd_pool
)
6598 pci_free_consistent(h
->pdev
,
6599 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
6600 h
->ioaccel2_cmd_pool
, h
->ioaccel2_cmd_pool_dhandle
);
6601 if (h
->errinfo_pool
)
6602 pci_free_consistent(h
->pdev
,
6603 h
->nr_cmds
* sizeof(struct ErrorInfo
),
6605 h
->errinfo_pool_dhandle
);
6606 if (h
->ioaccel_cmd_pool
)
6607 pci_free_consistent(h
->pdev
,
6608 h
->nr_cmds
* sizeof(struct io_accel1_cmd
),
6609 h
->ioaccel_cmd_pool
, h
->ioaccel_cmd_pool_dhandle
);
6612 static void hpsa_irq_affinity_hints(struct ctlr_info
*h
)
6616 cpu
= cpumask_first(cpu_online_mask
);
6617 for (i
= 0; i
< h
->msix_vector
; i
++) {
6618 rc
= irq_set_affinity_hint(h
->intr
[i
], get_cpu_mask(cpu
));
6619 cpu
= cpumask_next(cpu
, cpu_online_mask
);
6623 static int hpsa_request_irq(struct ctlr_info
*h
,
6624 irqreturn_t (*msixhandler
)(int, void *),
6625 irqreturn_t (*intxhandler
)(int, void *))
6630 * initialize h->q[x] = x so that interrupt handlers know which
6633 for (i
= 0; i
< MAX_REPLY_QUEUES
; i
++)
6636 if (h
->intr_mode
== PERF_MODE_INT
&& h
->msix_vector
> 0) {
6637 /* If performant mode and MSI-X, use multiple reply queues */
6638 for (i
= 0; i
< h
->msix_vector
; i
++)
6639 rc
= request_irq(h
->intr
[i
], msixhandler
,
6642 hpsa_irq_affinity_hints(h
);
6644 /* Use single reply pool */
6645 if (h
->msix_vector
> 0 || h
->msi_vector
) {
6646 rc
= request_irq(h
->intr
[h
->intr_mode
],
6647 msixhandler
, 0, h
->devname
,
6648 &h
->q
[h
->intr_mode
]);
6650 rc
= request_irq(h
->intr
[h
->intr_mode
],
6651 intxhandler
, IRQF_SHARED
, h
->devname
,
6652 &h
->q
[h
->intr_mode
]);
6656 dev_err(&h
->pdev
->dev
, "unable to get irq %d for %s\n",
6657 h
->intr
[h
->intr_mode
], h
->devname
);
6663 static int hpsa_kdump_soft_reset(struct ctlr_info
*h
)
6665 if (hpsa_send_host_reset(h
, RAID_CTLR_LUNID
,
6666 HPSA_RESET_TYPE_CONTROLLER
)) {
6667 dev_warn(&h
->pdev
->dev
, "Resetting array controller failed.\n");
6671 dev_info(&h
->pdev
->dev
, "Waiting for board to soft reset.\n");
6672 if (hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_NOT_READY
)) {
6673 dev_warn(&h
->pdev
->dev
, "Soft reset had no effect.\n");
6677 dev_info(&h
->pdev
->dev
, "Board reset, awaiting READY status.\n");
6678 if (hpsa_wait_for_board_state(h
->pdev
, h
->vaddr
, BOARD_READY
)) {
6679 dev_warn(&h
->pdev
->dev
, "Board failed to become ready "
6680 "after soft reset.\n");
6687 static void free_irqs(struct ctlr_info
*h
)
6691 if (!h
->msix_vector
|| h
->intr_mode
!= PERF_MODE_INT
) {
6692 /* Single reply queue, only one irq to free */
6694 irq_set_affinity_hint(h
->intr
[i
], NULL
);
6695 free_irq(h
->intr
[i
], &h
->q
[i
]);
6699 for (i
= 0; i
< h
->msix_vector
; i
++) {
6700 irq_set_affinity_hint(h
->intr
[i
], NULL
);
6701 free_irq(h
->intr
[i
], &h
->q
[i
]);
6705 static void hpsa_free_irqs_and_disable_msix(struct ctlr_info
*h
)
6708 #ifdef CONFIG_PCI_MSI
6709 if (h
->msix_vector
) {
6710 if (h
->pdev
->msix_enabled
)
6711 pci_disable_msix(h
->pdev
);
6712 } else if (h
->msi_vector
) {
6713 if (h
->pdev
->msi_enabled
)
6714 pci_disable_msi(h
->pdev
);
6716 #endif /* CONFIG_PCI_MSI */
6719 static void hpsa_free_reply_queues(struct ctlr_info
*h
)
6723 for (i
= 0; i
< h
->nreply_queues
; i
++) {
6724 if (!h
->reply_queue
[i
].head
)
6726 pci_free_consistent(h
->pdev
, h
->reply_queue_size
,
6727 h
->reply_queue
[i
].head
, h
->reply_queue
[i
].busaddr
);
6728 h
->reply_queue
[i
].head
= NULL
;
6729 h
->reply_queue
[i
].busaddr
= 0;
6733 static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info
*h
)
6735 hpsa_free_irqs_and_disable_msix(h
);
6736 hpsa_free_sg_chain_blocks(h
);
6737 hpsa_free_cmd_pool(h
);
6738 kfree(h
->ioaccel1_blockFetchTable
);
6739 kfree(h
->blockFetchTable
);
6740 hpsa_free_reply_queues(h
);
6744 iounmap(h
->transtable
);
6746 iounmap(h
->cfgtable
);
6747 pci_release_regions(h
->pdev
);
6751 /* Called when controller lockup detected. */
6752 static void fail_all_cmds_on_list(struct ctlr_info
*h
, struct list_head
*list
)
6754 struct CommandList
*c
= NULL
;
6756 assert_spin_locked(&h
->lock
);
6757 /* Mark all outstanding commands as failed and complete them. */
6758 while (!list_empty(list
)) {
6759 c
= list_entry(list
->next
, struct CommandList
, list
);
6760 c
->err_info
->CommandStatus
= CMD_HARDWARE_ERR
;
6765 static void set_lockup_detected_for_all_cpus(struct ctlr_info
*h
, u32 value
)
6769 cpu
= cpumask_first(cpu_online_mask
);
6770 for (i
= 0; i
< num_online_cpus(); i
++) {
6771 u32
*lockup_detected
;
6772 lockup_detected
= per_cpu_ptr(h
->lockup_detected
, cpu
);
6773 *lockup_detected
= value
;
6774 cpu
= cpumask_next(cpu
, cpu_online_mask
);
6776 wmb(); /* be sure the per-cpu variables are out to memory */
6779 static void controller_lockup_detected(struct ctlr_info
*h
)
6781 unsigned long flags
;
6782 u32 lockup_detected
;
6784 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
6785 spin_lock_irqsave(&h
->lock
, flags
);
6786 lockup_detected
= readl(h
->vaddr
+ SA5_SCRATCHPAD_OFFSET
);
6787 if (!lockup_detected
) {
6788 /* no heartbeat, but controller gave us a zero. */
6789 dev_warn(&h
->pdev
->dev
,
6790 "lockup detected but scratchpad register is zero\n");
6791 lockup_detected
= 0xffffffff;
6793 set_lockup_detected_for_all_cpus(h
, lockup_detected
);
6794 spin_unlock_irqrestore(&h
->lock
, flags
);
6795 dev_warn(&h
->pdev
->dev
, "Controller lockup detected: 0x%08x\n",
6797 pci_disable_device(h
->pdev
);
6798 spin_lock_irqsave(&h
->lock
, flags
);
6799 fail_all_cmds_on_list(h
, &h
->cmpQ
);
6800 fail_all_cmds_on_list(h
, &h
->reqQ
);
6801 spin_unlock_irqrestore(&h
->lock
, flags
);
6804 static void detect_controller_lockup(struct ctlr_info
*h
)
6808 unsigned long flags
;
6810 now
= get_jiffies_64();
6811 /* If we've received an interrupt recently, we're ok. */
6812 if (time_after64(h
->last_intr_timestamp
+
6813 (h
->heartbeat_sample_interval
), now
))
6817 * If we've already checked the heartbeat recently, we're ok.
6818 * This could happen if someone sends us a signal. We
6819 * otherwise don't care about signals in this thread.
6821 if (time_after64(h
->last_heartbeat_timestamp
+
6822 (h
->heartbeat_sample_interval
), now
))
6825 /* If heartbeat has not changed since we last looked, we're not ok. */
6826 spin_lock_irqsave(&h
->lock
, flags
);
6827 heartbeat
= readl(&h
->cfgtable
->HeartBeat
);
6828 spin_unlock_irqrestore(&h
->lock
, flags
);
6829 if (h
->last_heartbeat
== heartbeat
) {
6830 controller_lockup_detected(h
);
6835 h
->last_heartbeat
= heartbeat
;
6836 h
->last_heartbeat_timestamp
= now
;
6839 static void hpsa_ack_ctlr_events(struct ctlr_info
*h
)
6844 /* Clear the driver-requested rescan flag */
6845 h
->drv_req_rescan
= 0;
6847 /* Ask the controller to clear the events we're handling. */
6848 if ((h
->transMethod
& (CFGTBL_Trans_io_accel1
6849 | CFGTBL_Trans_io_accel2
)) &&
6850 (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE
||
6851 h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE
)) {
6853 if (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE
)
6854 event_type
= "state change";
6855 if (h
->events
& HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE
)
6856 event_type
= "configuration change";
6857 /* Stop sending new RAID offload reqs via the IO accelerator */
6858 scsi_block_requests(h
->scsi_host
);
6859 for (i
= 0; i
< h
->ndevices
; i
++)
6860 h
->dev
[i
]->offload_enabled
= 0;
6861 hpsa_drain_accel_commands(h
);
6862 /* Set 'accelerator path config change' bit */
6863 dev_warn(&h
->pdev
->dev
,
6864 "Acknowledging event: 0x%08x (HP SSD Smart Path %s)\n",
6865 h
->events
, event_type
);
6866 writel(h
->events
, &(h
->cfgtable
->clear_event_notify
));
6867 /* Set the "clear event notify field update" bit 6 */
6868 writel(DOORBELL_CLEAR_EVENTS
, h
->vaddr
+ SA5_DOORBELL
);
6869 /* Wait until ctlr clears 'clear event notify field', bit 6 */
6870 hpsa_wait_for_clear_event_notify_ack(h
);
6871 scsi_unblock_requests(h
->scsi_host
);
6873 /* Acknowledge controller notification events. */
6874 writel(h
->events
, &(h
->cfgtable
->clear_event_notify
));
6875 writel(DOORBELL_CLEAR_EVENTS
, h
->vaddr
+ SA5_DOORBELL
);
6876 hpsa_wait_for_clear_event_notify_ack(h
);
6878 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
6879 hpsa_wait_for_mode_change_ack(h
);
6885 /* Check a register on the controller to see if there are configuration
6886 * changes (added/changed/removed logical drives, etc.) which mean that
6887 * we should rescan the controller for devices.
6888 * Also check flag for driver-initiated rescan.
6890 static int hpsa_ctlr_needs_rescan(struct ctlr_info
*h
)
6892 if (h
->drv_req_rescan
)
6895 if (!(h
->fw_support
& MISC_FW_EVENT_NOTIFY
))
6898 h
->events
= readl(&(h
->cfgtable
->event_notify
));
6899 return h
->events
& RESCAN_REQUIRED_EVENT_BITS
;
6903 * Check if any of the offline devices have become ready
6905 static int hpsa_offline_devices_ready(struct ctlr_info
*h
)
6907 unsigned long flags
;
6908 struct offline_device_entry
*d
;
6909 struct list_head
*this, *tmp
;
6911 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6912 list_for_each_safe(this, tmp
, &h
->offline_device_list
) {
6913 d
= list_entry(this, struct offline_device_entry
,
6915 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6916 if (!hpsa_volume_offline(h
, d
->scsi3addr
))
6918 spin_lock_irqsave(&h
->offline_device_lock
, flags
);
6920 spin_unlock_irqrestore(&h
->offline_device_lock
, flags
);
6925 static void hpsa_monitor_ctlr_worker(struct work_struct
*work
)
6927 unsigned long flags
;
6928 struct ctlr_info
*h
= container_of(to_delayed_work(work
),
6929 struct ctlr_info
, monitor_ctlr_work
);
6930 detect_controller_lockup(h
);
6931 if (lockup_detected(h
))
6934 if (hpsa_ctlr_needs_rescan(h
) || hpsa_offline_devices_ready(h
)) {
6935 scsi_host_get(h
->scsi_host
);
6936 h
->drv_req_rescan
= 0;
6937 hpsa_ack_ctlr_events(h
);
6938 hpsa_scan_start(h
->scsi_host
);
6939 scsi_host_put(h
->scsi_host
);
6942 spin_lock_irqsave(&h
->lock
, flags
);
6943 if (h
->remove_in_progress
) {
6944 spin_unlock_irqrestore(&h
->lock
, flags
);
6947 schedule_delayed_work(&h
->monitor_ctlr_work
,
6948 h
->heartbeat_sample_interval
);
6949 spin_unlock_irqrestore(&h
->lock
, flags
);
6952 static int hpsa_init_one(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
6955 struct ctlr_info
*h
;
6956 int try_soft_reset
= 0;
6957 unsigned long flags
;
6959 if (number_of_controllers
== 0)
6960 printk(KERN_INFO DRIVER_NAME
"\n");
6962 rc
= hpsa_init_reset_devices(pdev
);
6964 if (rc
!= -ENOTSUPP
)
6966 /* If the reset fails in a particular way (it has no way to do
6967 * a proper hard reset, so returns -ENOTSUPP) we can try to do
6968 * a soft reset once we get the controller configured up to the
6969 * point that it can accept a command.
6975 reinit_after_soft_reset
:
6977 /* Command structures must be aligned on a 32-byte boundary because
6978 * the 5 lower bits of the address are used by the hardware. and by
6979 * the driver. See comments in hpsa.h for more info.
6981 BUILD_BUG_ON(sizeof(struct CommandList
) % COMMANDLIST_ALIGNMENT
);
6982 h
= kzalloc(sizeof(*h
), GFP_KERNEL
);
6987 h
->intr_mode
= hpsa_simple_mode
? SIMPLE_MODE_INT
: PERF_MODE_INT
;
6988 INIT_LIST_HEAD(&h
->cmpQ
);
6989 INIT_LIST_HEAD(&h
->reqQ
);
6990 INIT_LIST_HEAD(&h
->offline_device_list
);
6991 spin_lock_init(&h
->lock
);
6992 spin_lock_init(&h
->offline_device_lock
);
6993 spin_lock_init(&h
->scan_lock
);
6994 spin_lock_init(&h
->passthru_count_lock
);
6996 /* Allocate and clear per-cpu variable lockup_detected */
6997 h
->lockup_detected
= alloc_percpu(u32
);
6998 if (!h
->lockup_detected
)
7000 set_lockup_detected_for_all_cpus(h
, 0);
7002 rc
= hpsa_pci_init(h
);
7006 sprintf(h
->devname
, HPSA
"%d", number_of_controllers
);
7007 h
->ctlr
= number_of_controllers
;
7008 number_of_controllers
++;
7010 /* configure PCI DMA stuff */
7011 rc
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
7015 rc
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
7019 dev_err(&pdev
->dev
, "no suitable DMA available\n");
7024 /* make sure the board interrupts are off */
7025 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7027 if (hpsa_request_irq(h
, do_hpsa_intr_msi
, do_hpsa_intr_intx
))
7029 dev_info(&pdev
->dev
, "%s: <0x%x> at IRQ %d%s using DAC\n",
7030 h
->devname
, pdev
->device
,
7031 h
->intr
[h
->intr_mode
], dac
? "" : " not");
7032 if (hpsa_allocate_cmd_pool(h
))
7034 if (hpsa_allocate_sg_chain_blocks(h
))
7036 init_waitqueue_head(&h
->scan_wait_queue
);
7037 h
->scan_finished
= 1; /* no scan currently in progress */
7039 pci_set_drvdata(pdev
, h
);
7041 h
->hba_mode_enabled
= 0;
7042 h
->scsi_host
= NULL
;
7043 spin_lock_init(&h
->devlock
);
7044 hpsa_put_ctlr_into_performant_mode(h
);
7046 /* At this point, the controller is ready to take commands.
7047 * Now, if reset_devices and the hard reset didn't work, try
7048 * the soft reset and see if that works.
7050 if (try_soft_reset
) {
7052 /* This is kind of gross. We may or may not get a completion
7053 * from the soft reset command, and if we do, then the value
7054 * from the fifo may or may not be valid. So, we wait 10 secs
7055 * after the reset throwing away any completions we get during
7056 * that time. Unregister the interrupt handler and register
7057 * fake ones to scoop up any residual completions.
7059 spin_lock_irqsave(&h
->lock
, flags
);
7060 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7061 spin_unlock_irqrestore(&h
->lock
, flags
);
7063 rc
= hpsa_request_irq(h
, hpsa_msix_discard_completions
,
7064 hpsa_intx_discard_completions
);
7066 dev_warn(&h
->pdev
->dev
, "Failed to request_irq after "
7071 rc
= hpsa_kdump_soft_reset(h
);
7073 /* Neither hard nor soft reset worked, we're hosed. */
7076 dev_info(&h
->pdev
->dev
, "Board READY.\n");
7077 dev_info(&h
->pdev
->dev
,
7078 "Waiting for stale completions to drain.\n");
7079 h
->access
.set_intr_mask(h
, HPSA_INTR_ON
);
7081 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7083 rc
= controller_reset_failed(h
->cfgtable
);
7085 dev_info(&h
->pdev
->dev
,
7086 "Soft reset appears to have failed.\n");
7088 /* since the controller's reset, we have to go back and re-init
7089 * everything. Easiest to just forget what we've done and do it
7092 hpsa_undo_allocations_after_kdump_soft_reset(h
);
7095 /* don't go to clean4, we already unallocated */
7098 goto reinit_after_soft_reset
;
7101 /* Enable Accelerated IO path at driver layer */
7102 h
->acciopath_status
= 1;
7104 h
->drv_req_rescan
= 0;
7106 /* Turn the interrupts on so we can service requests */
7107 h
->access
.set_intr_mask(h
, HPSA_INTR_ON
);
7109 hpsa_hba_inquiry(h
);
7110 hpsa_register_scsi(h
); /* hook ourselves into SCSI subsystem */
7112 /* Monitor the controller for firmware lockups */
7113 h
->heartbeat_sample_interval
= HEARTBEAT_SAMPLE_INTERVAL
;
7114 INIT_DELAYED_WORK(&h
->monitor_ctlr_work
, hpsa_monitor_ctlr_worker
);
7115 schedule_delayed_work(&h
->monitor_ctlr_work
,
7116 h
->heartbeat_sample_interval
);
7120 hpsa_free_sg_chain_blocks(h
);
7121 hpsa_free_cmd_pool(h
);
7125 if (h
->lockup_detected
)
7126 free_percpu(h
->lockup_detected
);
7131 static void hpsa_flush_cache(struct ctlr_info
*h
)
7134 struct CommandList
*c
;
7136 /* Don't bother trying to flush the cache if locked up */
7137 if (unlikely(lockup_detected(h
)))
7139 flush_buf
= kzalloc(4, GFP_KERNEL
);
7143 c
= cmd_special_alloc(h
);
7145 dev_warn(&h
->pdev
->dev
, "cmd_special_alloc returned NULL!\n");
7148 if (fill_cmd(c
, HPSA_CACHE_FLUSH
, h
, flush_buf
, 4, 0,
7149 RAID_CTLR_LUNID
, TYPE_CMD
)) {
7152 hpsa_scsi_do_simple_cmd_with_retry(h
, c
, PCI_DMA_TODEVICE
);
7153 if (c
->err_info
->CommandStatus
!= 0)
7155 dev_warn(&h
->pdev
->dev
,
7156 "error flushing cache on controller\n");
7157 cmd_special_free(h
, c
);
7162 static void hpsa_shutdown(struct pci_dev
*pdev
)
7164 struct ctlr_info
*h
;
7166 h
= pci_get_drvdata(pdev
);
7167 /* Turn board interrupts off and send the flush cache command
7168 * sendcmd will turn off interrupt, and send the flush...
7169 * To write all data in the battery backed cache to disks
7171 hpsa_flush_cache(h
);
7172 h
->access
.set_intr_mask(h
, HPSA_INTR_OFF
);
7173 hpsa_free_irqs_and_disable_msix(h
);
7176 static void hpsa_free_device_info(struct ctlr_info
*h
)
7180 for (i
= 0; i
< h
->ndevices
; i
++)
7184 static void hpsa_remove_one(struct pci_dev
*pdev
)
7186 struct ctlr_info
*h
;
7187 unsigned long flags
;
7189 if (pci_get_drvdata(pdev
) == NULL
) {
7190 dev_err(&pdev
->dev
, "unable to remove device\n");
7193 h
= pci_get_drvdata(pdev
);
7195 /* Get rid of any controller monitoring work items */
7196 spin_lock_irqsave(&h
->lock
, flags
);
7197 h
->remove_in_progress
= 1;
7198 cancel_delayed_work(&h
->monitor_ctlr_work
);
7199 spin_unlock_irqrestore(&h
->lock
, flags
);
7201 hpsa_unregister_scsi(h
); /* unhook from SCSI subsystem */
7202 hpsa_shutdown(pdev
);
7204 iounmap(h
->transtable
);
7205 iounmap(h
->cfgtable
);
7206 hpsa_free_device_info(h
);
7207 hpsa_free_sg_chain_blocks(h
);
7208 pci_free_consistent(h
->pdev
,
7209 h
->nr_cmds
* sizeof(struct CommandList
),
7210 h
->cmd_pool
, h
->cmd_pool_dhandle
);
7211 pci_free_consistent(h
->pdev
,
7212 h
->nr_cmds
* sizeof(struct ErrorInfo
),
7213 h
->errinfo_pool
, h
->errinfo_pool_dhandle
);
7214 hpsa_free_reply_queues(h
);
7215 kfree(h
->cmd_pool_bits
);
7216 kfree(h
->blockFetchTable
);
7217 kfree(h
->ioaccel1_blockFetchTable
);
7218 kfree(h
->ioaccel2_blockFetchTable
);
7219 kfree(h
->hba_inquiry_data
);
7220 pci_disable_device(pdev
);
7221 pci_release_regions(pdev
);
7222 free_percpu(h
->lockup_detected
);
7226 static int hpsa_suspend(__attribute__((unused
)) struct pci_dev
*pdev
,
7227 __attribute__((unused
)) pm_message_t state
)
7232 static int hpsa_resume(__attribute__((unused
)) struct pci_dev
*pdev
)
7237 static struct pci_driver hpsa_pci_driver
= {
7239 .probe
= hpsa_init_one
,
7240 .remove
= hpsa_remove_one
,
7241 .id_table
= hpsa_pci_device_id
, /* id_table */
7242 .shutdown
= hpsa_shutdown
,
7243 .suspend
= hpsa_suspend
,
7244 .resume
= hpsa_resume
,
7247 /* Fill in bucket_map[], given nsgs (the max number of
7248 * scatter gather elements supported) and bucket[],
7249 * which is an array of 8 integers. The bucket[] array
7250 * contains 8 different DMA transfer sizes (in 16
7251 * byte increments) which the controller uses to fetch
7252 * commands. This function fills in bucket_map[], which
7253 * maps a given number of scatter gather elements to one of
7254 * the 8 DMA transfer sizes. The point of it is to allow the
7255 * controller to only do as much DMA as needed to fetch the
7256 * command, with the DMA transfer size encoded in the lower
7257 * bits of the command address.
7259 static void calc_bucket_map(int bucket
[], int num_buckets
,
7260 int nsgs
, int min_blocks
, int *bucket_map
)
7264 /* Note, bucket_map must have nsgs+1 entries. */
7265 for (i
= 0; i
<= nsgs
; i
++) {
7266 /* Compute size of a command with i SG entries */
7267 size
= i
+ min_blocks
;
7268 b
= num_buckets
; /* Assume the biggest bucket */
7269 /* Find the bucket that is just big enough */
7270 for (j
= 0; j
< num_buckets
; j
++) {
7271 if (bucket
[j
] >= size
) {
7276 /* for a command with i SG entries, use bucket b. */
7281 static void hpsa_enter_performant_mode(struct ctlr_info
*h
, u32 trans_support
)
7284 unsigned long register_value
;
7285 unsigned long transMethod
= CFGTBL_Trans_Performant
|
7286 (trans_support
& CFGTBL_Trans_use_short_tags
) |
7287 CFGTBL_Trans_enable_directed_msix
|
7288 (trans_support
& (CFGTBL_Trans_io_accel1
|
7289 CFGTBL_Trans_io_accel2
));
7290 struct access_method access
= SA5_performant_access
;
7292 /* This is a bit complicated. There are 8 registers on
7293 * the controller which we write to to tell it 8 different
7294 * sizes of commands which there may be. It's a way of
7295 * reducing the DMA done to fetch each command. Encoded into
7296 * each command's tag are 3 bits which communicate to the controller
7297 * which of the eight sizes that command fits within. The size of
7298 * each command depends on how many scatter gather entries there are.
7299 * Each SG entry requires 16 bytes. The eight registers are programmed
7300 * with the number of 16-byte blocks a command of that size requires.
7301 * The smallest command possible requires 5 such 16 byte blocks.
7302 * the largest command possible requires SG_ENTRIES_IN_CMD + 4 16-byte
7303 * blocks. Note, this only extends to the SG entries contained
7304 * within the command block, and does not extend to chained blocks
7305 * of SG elements. bft[] contains the eight values we write to
7306 * the registers. They are not evenly distributed, but have more
7307 * sizes for small commands, and fewer sizes for larger commands.
7309 int bft
[8] = {5, 6, 8, 10, 12, 20, 28, SG_ENTRIES_IN_CMD
+ 4};
7310 #define MIN_IOACCEL2_BFT_ENTRY 5
7311 #define HPSA_IOACCEL2_HEADER_SZ 4
7312 int bft2
[16] = {MIN_IOACCEL2_BFT_ENTRY
, 6, 7, 8, 9, 10, 11, 12,
7313 13, 14, 15, 16, 17, 18, 19,
7314 HPSA_IOACCEL2_HEADER_SZ
+ IOACCEL2_MAXSGENTRIES
};
7315 BUILD_BUG_ON(ARRAY_SIZE(bft2
) != 16);
7316 BUILD_BUG_ON(ARRAY_SIZE(bft
) != 8);
7317 BUILD_BUG_ON(offsetof(struct io_accel2_cmd
, sg
) >
7318 16 * MIN_IOACCEL2_BFT_ENTRY
);
7319 BUILD_BUG_ON(sizeof(struct ioaccel2_sg_element
) != 16);
7320 BUILD_BUG_ON(28 > SG_ENTRIES_IN_CMD
+ 4);
7321 /* 5 = 1 s/g entry or 4k
7322 * 6 = 2 s/g entry or 8k
7323 * 8 = 4 s/g entry or 16k
7324 * 10 = 6 s/g entry or 24k
7327 /* If the controller supports either ioaccel method then
7328 * we can also use the RAID stack submit path that does not
7329 * perform the superfluous readl() after each command submission.
7331 if (trans_support
& (CFGTBL_Trans_io_accel1
| CFGTBL_Trans_io_accel2
))
7332 access
= SA5_performant_access_no_read
;
7334 /* Controller spec: zero out this buffer. */
7335 for (i
= 0; i
< h
->nreply_queues
; i
++)
7336 memset(h
->reply_queue
[i
].head
, 0, h
->reply_queue_size
);
7338 bft
[7] = SG_ENTRIES_IN_CMD
+ 4;
7339 calc_bucket_map(bft
, ARRAY_SIZE(bft
),
7340 SG_ENTRIES_IN_CMD
, 4, h
->blockFetchTable
);
7341 for (i
= 0; i
< 8; i
++)
7342 writel(bft
[i
], &h
->transtable
->BlockFetch
[i
]);
7344 /* size of controller ring buffer */
7345 writel(h
->max_commands
, &h
->transtable
->RepQSize
);
7346 writel(h
->nreply_queues
, &h
->transtable
->RepQCount
);
7347 writel(0, &h
->transtable
->RepQCtrAddrLow32
);
7348 writel(0, &h
->transtable
->RepQCtrAddrHigh32
);
7350 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7351 writel(0, &h
->transtable
->RepQAddr
[i
].upper
);
7352 writel(h
->reply_queue
[i
].busaddr
,
7353 &h
->transtable
->RepQAddr
[i
].lower
);
7356 writel(0, &h
->cfgtable
->HostWrite
.command_pool_addr_hi
);
7357 writel(transMethod
, &(h
->cfgtable
->HostWrite
.TransportRequest
));
7359 * enable outbound interrupt coalescing in accelerator mode;
7361 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7362 access
= SA5_ioaccel_mode1_access
;
7363 writel(10, &h
->cfgtable
->HostWrite
.CoalIntDelay
);
7364 writel(4, &h
->cfgtable
->HostWrite
.CoalIntCount
);
7366 if (trans_support
& CFGTBL_Trans_io_accel2
) {
7367 access
= SA5_ioaccel_mode2_access
;
7368 writel(10, &h
->cfgtable
->HostWrite
.CoalIntDelay
);
7369 writel(4, &h
->cfgtable
->HostWrite
.CoalIntCount
);
7372 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
7373 hpsa_wait_for_mode_change_ack(h
);
7374 register_value
= readl(&(h
->cfgtable
->TransportActive
));
7375 if (!(register_value
& CFGTBL_Trans_Performant
)) {
7376 dev_warn(&h
->pdev
->dev
, "unable to get board into"
7377 " performant mode\n");
7380 /* Change the access methods to the performant access methods */
7382 h
->transMethod
= transMethod
;
7384 if (!((trans_support
& CFGTBL_Trans_io_accel1
) ||
7385 (trans_support
& CFGTBL_Trans_io_accel2
)))
7388 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7389 /* Set up I/O accelerator mode */
7390 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7391 writel(i
, h
->vaddr
+ IOACCEL_MODE1_REPLY_QUEUE_INDEX
);
7392 h
->reply_queue
[i
].current_entry
=
7393 readl(h
->vaddr
+ IOACCEL_MODE1_PRODUCER_INDEX
);
7395 bft
[7] = h
->ioaccel_maxsg
+ 8;
7396 calc_bucket_map(bft
, ARRAY_SIZE(bft
), h
->ioaccel_maxsg
, 8,
7397 h
->ioaccel1_blockFetchTable
);
7399 /* initialize all reply queue entries to unused */
7400 for (i
= 0; i
< h
->nreply_queues
; i
++)
7401 memset(h
->reply_queue
[i
].head
,
7402 (u8
) IOACCEL_MODE1_REPLY_UNUSED
,
7403 h
->reply_queue_size
);
7405 /* set all the constant fields in the accelerator command
7406 * frames once at init time to save CPU cycles later.
7408 for (i
= 0; i
< h
->nr_cmds
; i
++) {
7409 struct io_accel1_cmd
*cp
= &h
->ioaccel_cmd_pool
[i
];
7411 cp
->function
= IOACCEL1_FUNCTION_SCSIIO
;
7412 cp
->err_info
= (u32
) (h
->errinfo_pool_dhandle
+
7413 (i
* sizeof(struct ErrorInfo
)));
7414 cp
->err_info_len
= sizeof(struct ErrorInfo
);
7415 cp
->sgl_offset
= IOACCEL1_SGLOFFSET
;
7416 cp
->host_context_flags
= IOACCEL1_HCFLAGS_CISS_FORMAT
;
7417 cp
->timeout_sec
= 0;
7419 cp
->Tag
.lower
= (i
<< DIRECT_LOOKUP_SHIFT
) |
7422 cp
->host_addr
.lower
=
7423 (u32
) (h
->ioaccel_cmd_pool_dhandle
+
7424 (i
* sizeof(struct io_accel1_cmd
)));
7425 cp
->host_addr
.upper
= 0;
7427 } else if (trans_support
& CFGTBL_Trans_io_accel2
) {
7428 u64 cfg_offset
, cfg_base_addr_index
;
7429 u32 bft2_offset
, cfg_base_addr
;
7432 rc
= hpsa_find_cfg_addrs(h
->pdev
, h
->vaddr
, &cfg_base_addr
,
7433 &cfg_base_addr_index
, &cfg_offset
);
7434 BUILD_BUG_ON(offsetof(struct io_accel2_cmd
, sg
) != 64);
7435 bft2
[15] = h
->ioaccel_maxsg
+ HPSA_IOACCEL2_HEADER_SZ
;
7436 calc_bucket_map(bft2
, ARRAY_SIZE(bft2
), h
->ioaccel_maxsg
,
7437 4, h
->ioaccel2_blockFetchTable
);
7438 bft2_offset
= readl(&h
->cfgtable
->io_accel_request_size_offset
);
7439 BUILD_BUG_ON(offsetof(struct CfgTable
,
7440 io_accel_request_size_offset
) != 0xb8);
7441 h
->ioaccel2_bft2_regs
=
7442 remap_pci_mem(pci_resource_start(h
->pdev
,
7443 cfg_base_addr_index
) +
7444 cfg_offset
+ bft2_offset
,
7446 sizeof(*h
->ioaccel2_bft2_regs
));
7447 for (i
= 0; i
< ARRAY_SIZE(bft2
); i
++)
7448 writel(bft2
[i
], &h
->ioaccel2_bft2_regs
[i
]);
7450 writel(CFGTBL_ChangeReq
, h
->vaddr
+ SA5_DOORBELL
);
7451 hpsa_wait_for_mode_change_ack(h
);
7454 static int hpsa_alloc_ioaccel_cmd_and_bft(struct ctlr_info
*h
)
7457 readl(&(h
->cfgtable
->io_accel_max_embedded_sg_count
));
7458 if (h
->ioaccel_maxsg
> IOACCEL1_MAXSGENTRIES
)
7459 h
->ioaccel_maxsg
= IOACCEL1_MAXSGENTRIES
;
7461 /* Command structures must be aligned on a 128-byte boundary
7462 * because the 7 lower bits of the address are used by the
7465 BUILD_BUG_ON(sizeof(struct io_accel1_cmd
) %
7466 IOACCEL1_COMMANDLIST_ALIGNMENT
);
7467 h
->ioaccel_cmd_pool
=
7468 pci_alloc_consistent(h
->pdev
,
7469 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
),
7470 &(h
->ioaccel_cmd_pool_dhandle
));
7472 h
->ioaccel1_blockFetchTable
=
7473 kmalloc(((h
->ioaccel_maxsg
+ 1) *
7474 sizeof(u32
)), GFP_KERNEL
);
7476 if ((h
->ioaccel_cmd_pool
== NULL
) ||
7477 (h
->ioaccel1_blockFetchTable
== NULL
))
7480 memset(h
->ioaccel_cmd_pool
, 0,
7481 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
));
7485 if (h
->ioaccel_cmd_pool
)
7486 pci_free_consistent(h
->pdev
,
7487 h
->nr_cmds
* sizeof(*h
->ioaccel_cmd_pool
),
7488 h
->ioaccel_cmd_pool
, h
->ioaccel_cmd_pool_dhandle
);
7489 kfree(h
->ioaccel1_blockFetchTable
);
7493 static int ioaccel2_alloc_cmds_and_bft(struct ctlr_info
*h
)
7495 /* Allocate ioaccel2 mode command blocks and block fetch table */
7498 readl(&(h
->cfgtable
->io_accel_max_embedded_sg_count
));
7499 if (h
->ioaccel_maxsg
> IOACCEL2_MAXSGENTRIES
)
7500 h
->ioaccel_maxsg
= IOACCEL2_MAXSGENTRIES
;
7502 BUILD_BUG_ON(sizeof(struct io_accel2_cmd
) %
7503 IOACCEL2_COMMANDLIST_ALIGNMENT
);
7504 h
->ioaccel2_cmd_pool
=
7505 pci_alloc_consistent(h
->pdev
,
7506 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
7507 &(h
->ioaccel2_cmd_pool_dhandle
));
7509 h
->ioaccel2_blockFetchTable
=
7510 kmalloc(((h
->ioaccel_maxsg
+ 1) *
7511 sizeof(u32
)), GFP_KERNEL
);
7513 if ((h
->ioaccel2_cmd_pool
== NULL
) ||
7514 (h
->ioaccel2_blockFetchTable
== NULL
))
7517 memset(h
->ioaccel2_cmd_pool
, 0,
7518 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
));
7522 if (h
->ioaccel2_cmd_pool
)
7523 pci_free_consistent(h
->pdev
,
7524 h
->nr_cmds
* sizeof(*h
->ioaccel2_cmd_pool
),
7525 h
->ioaccel2_cmd_pool
, h
->ioaccel2_cmd_pool_dhandle
);
7526 kfree(h
->ioaccel2_blockFetchTable
);
7530 static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info
*h
)
7533 unsigned long transMethod
= CFGTBL_Trans_Performant
|
7534 CFGTBL_Trans_use_short_tags
;
7537 if (hpsa_simple_mode
)
7540 trans_support
= readl(&(h
->cfgtable
->TransportSupport
));
7541 if (!(trans_support
& PERFORMANT_MODE
))
7544 /* Check for I/O accelerator mode support */
7545 if (trans_support
& CFGTBL_Trans_io_accel1
) {
7546 transMethod
|= CFGTBL_Trans_io_accel1
|
7547 CFGTBL_Trans_enable_directed_msix
;
7548 if (hpsa_alloc_ioaccel_cmd_and_bft(h
))
7551 if (trans_support
& CFGTBL_Trans_io_accel2
) {
7552 transMethod
|= CFGTBL_Trans_io_accel2
|
7553 CFGTBL_Trans_enable_directed_msix
;
7554 if (ioaccel2_alloc_cmds_and_bft(h
))
7559 h
->nreply_queues
= h
->msix_vector
> 0 ? h
->msix_vector
: 1;
7560 hpsa_get_max_perf_mode_cmds(h
);
7561 /* Performant mode ring buffer and supporting data structures */
7562 h
->reply_queue_size
= h
->max_commands
* sizeof(u64
);
7564 for (i
= 0; i
< h
->nreply_queues
; i
++) {
7565 h
->reply_queue
[i
].head
= pci_alloc_consistent(h
->pdev
,
7566 h
->reply_queue_size
,
7567 &(h
->reply_queue
[i
].busaddr
));
7568 if (!h
->reply_queue
[i
].head
)
7570 h
->reply_queue
[i
].size
= h
->max_commands
;
7571 h
->reply_queue
[i
].wraparound
= 1; /* spec: init to 1 */
7572 h
->reply_queue
[i
].current_entry
= 0;
7575 /* Need a block fetch table for performant mode */
7576 h
->blockFetchTable
= kmalloc(((SG_ENTRIES_IN_CMD
+ 1) *
7577 sizeof(u32
)), GFP_KERNEL
);
7578 if (!h
->blockFetchTable
)
7581 hpsa_enter_performant_mode(h
, trans_support
);
7585 hpsa_free_reply_queues(h
);
7586 kfree(h
->blockFetchTable
);
7589 static int is_accelerated_cmd(struct CommandList
*c
)
7591 return c
->cmd_type
== CMD_IOACCEL1
|| c
->cmd_type
== CMD_IOACCEL2
;
7594 static void hpsa_drain_accel_commands(struct ctlr_info
*h
)
7596 struct CommandList
*c
= NULL
;
7597 unsigned long flags
;
7600 do { /* wait for all outstanding commands to drain out */
7602 spin_lock_irqsave(&h
->lock
, flags
);
7603 list_for_each_entry(c
, &h
->cmpQ
, list
)
7604 accel_cmds_out
+= is_accelerated_cmd(c
);
7605 list_for_each_entry(c
, &h
->reqQ
, list
)
7606 accel_cmds_out
+= is_accelerated_cmd(c
);
7607 spin_unlock_irqrestore(&h
->lock
, flags
);
7608 if (accel_cmds_out
<= 0)
7615 * This is it. Register the PCI driver information for the cards we control
7616 * the OS will call our registered routines when it finds one of our cards.
7618 static int __init
hpsa_init(void)
7620 return pci_register_driver(&hpsa_pci_driver
);
7623 static void __exit
hpsa_cleanup(void)
7625 pci_unregister_driver(&hpsa_pci_driver
);
7628 static void __attribute__((unused
)) verify_offsets(void)
7630 #define VERIFY_OFFSET(member, offset) \
7631 BUILD_BUG_ON(offsetof(struct raid_map_data, member) != offset)
7633 VERIFY_OFFSET(structure_size
, 0);
7634 VERIFY_OFFSET(volume_blk_size
, 4);
7635 VERIFY_OFFSET(volume_blk_cnt
, 8);
7636 VERIFY_OFFSET(phys_blk_shift
, 16);
7637 VERIFY_OFFSET(parity_rotation_shift
, 17);
7638 VERIFY_OFFSET(strip_size
, 18);
7639 VERIFY_OFFSET(disk_starting_blk
, 20);
7640 VERIFY_OFFSET(disk_blk_cnt
, 28);
7641 VERIFY_OFFSET(data_disks_per_row
, 36);
7642 VERIFY_OFFSET(metadata_disks_per_row
, 38);
7643 VERIFY_OFFSET(row_cnt
, 40);
7644 VERIFY_OFFSET(layout_map_count
, 42);
7645 VERIFY_OFFSET(flags
, 44);
7646 VERIFY_OFFSET(dekindex
, 46);
7647 /* VERIFY_OFFSET(reserved, 48 */
7648 VERIFY_OFFSET(data
, 64);
7650 #undef VERIFY_OFFSET
7652 #define VERIFY_OFFSET(member, offset) \
7653 BUILD_BUG_ON(offsetof(struct io_accel2_cmd, member) != offset)
7655 VERIFY_OFFSET(IU_type
, 0);
7656 VERIFY_OFFSET(direction
, 1);
7657 VERIFY_OFFSET(reply_queue
, 2);
7658 /* VERIFY_OFFSET(reserved1, 3); */
7659 VERIFY_OFFSET(scsi_nexus
, 4);
7660 VERIFY_OFFSET(Tag
, 8);
7661 VERIFY_OFFSET(cdb
, 16);
7662 VERIFY_OFFSET(cciss_lun
, 32);
7663 VERIFY_OFFSET(data_len
, 40);
7664 VERIFY_OFFSET(cmd_priority_task_attr
, 44);
7665 VERIFY_OFFSET(sg_count
, 45);
7666 /* VERIFY_OFFSET(reserved3 */
7667 VERIFY_OFFSET(err_ptr
, 48);
7668 VERIFY_OFFSET(err_len
, 56);
7669 /* VERIFY_OFFSET(reserved4 */
7670 VERIFY_OFFSET(sg
, 64);
7672 #undef VERIFY_OFFSET
7674 #define VERIFY_OFFSET(member, offset) \
7675 BUILD_BUG_ON(offsetof(struct io_accel1_cmd, member) != offset)
7677 VERIFY_OFFSET(dev_handle
, 0x00);
7678 VERIFY_OFFSET(reserved1
, 0x02);
7679 VERIFY_OFFSET(function
, 0x03);
7680 VERIFY_OFFSET(reserved2
, 0x04);
7681 VERIFY_OFFSET(err_info
, 0x0C);
7682 VERIFY_OFFSET(reserved3
, 0x10);
7683 VERIFY_OFFSET(err_info_len
, 0x12);
7684 VERIFY_OFFSET(reserved4
, 0x13);
7685 VERIFY_OFFSET(sgl_offset
, 0x14);
7686 VERIFY_OFFSET(reserved5
, 0x15);
7687 VERIFY_OFFSET(transfer_len
, 0x1C);
7688 VERIFY_OFFSET(reserved6
, 0x20);
7689 VERIFY_OFFSET(io_flags
, 0x24);
7690 VERIFY_OFFSET(reserved7
, 0x26);
7691 VERIFY_OFFSET(LUN
, 0x34);
7692 VERIFY_OFFSET(control
, 0x3C);
7693 VERIFY_OFFSET(CDB
, 0x40);
7694 VERIFY_OFFSET(reserved8
, 0x50);
7695 VERIFY_OFFSET(host_context_flags
, 0x60);
7696 VERIFY_OFFSET(timeout_sec
, 0x62);
7697 VERIFY_OFFSET(ReplyQueue
, 0x64);
7698 VERIFY_OFFSET(reserved9
, 0x65);
7699 VERIFY_OFFSET(Tag
, 0x68);
7700 VERIFY_OFFSET(host_addr
, 0x70);
7701 VERIFY_OFFSET(CISS_LUN
, 0x78);
7702 VERIFY_OFFSET(SG
, 0x78 + 8);
7703 #undef VERIFY_OFFSET
7706 module_init(hpsa_init
);
7707 module_exit(hpsa_cleanup
);