4
#include <linux/spinlock.h>
5
#include <linux/mutex.h>
7
#define MEGARAID_VERSION \
8
"v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n"
11
* Driver features - change the values to enable or disable features in the
16
* Command coalescing - This feature allows the driver to be able to combine
17
* two or more commands and issue as one command in order to boost I/O
18
* performance. Useful if the nature of the I/O is sequential. It is not very
19
* useful for random natured I/Os.
21
#define MEGA_HAVE_COALESCING 0
24
* Clustering support - Set this flag if you are planning to use the
25
* clustering services provided by the megaraid controllers and planning to
28
#define MEGA_HAVE_CLUSTERING 1
31
* Driver statistics - Set this flag if you are interested in statics about
32
* number of I/O completed on each logical drive and how many interrupts
33
* generated. If enabled, this information is available through /proc
34
* interface and through the private ioctl. Setting this flag has a
35
* performance penalty.
37
#define MEGA_HAVE_STATS 0
40
* Enhanced /proc interface - This feature will allow you to have a more
41
* detailed /proc interface for megaraid driver. E.g., a real time update of
42
* the status of the logical drives, battery status, physical drives etc.
44
#define MEGA_HAVE_ENH_PROC 1
46
#define MAX_DEV_TYPE 32
48
#ifndef PCI_VENDOR_ID_LSI_LOGIC
49
#define PCI_VENDOR_ID_LSI_LOGIC 0x1000
52
#ifndef PCI_VENDOR_ID_AMI
53
#define PCI_VENDOR_ID_AMI 0x101E
56
#ifndef PCI_VENDOR_ID_DELL
57
#define PCI_VENDOR_ID_DELL 0x1028
60
#ifndef PCI_VENDOR_ID_INTEL
61
#define PCI_VENDOR_ID_INTEL 0x8086
64
#ifndef PCI_DEVICE_ID_AMI_MEGARAID
65
#define PCI_DEVICE_ID_AMI_MEGARAID 0x9010
68
#ifndef PCI_DEVICE_ID_AMI_MEGARAID2
69
#define PCI_DEVICE_ID_AMI_MEGARAID2 0x9060
72
#ifndef PCI_DEVICE_ID_AMI_MEGARAID3
73
#define PCI_DEVICE_ID_AMI_MEGARAID3 0x1960
76
#define PCI_DEVICE_ID_DISCOVERY 0x000E
77
#define PCI_DEVICE_ID_PERC4_DI 0x000F
78
#define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407
80
/* Sub-System Vendor IDs */
81
#define AMI_SUBSYS_VID 0x101E
82
#define DELL_SUBSYS_VID 0x1028
83
#define HP_SUBSYS_VID 0x103C
84
#define LSI_SUBSYS_VID 0x1000
85
#define INTEL_SUBSYS_VID 0x8086
87
#define HBA_SIGNATURE 0x3344
88
#define HBA_SIGNATURE_471 0xCCCC
89
#define HBA_SIGNATURE_64BIT 0x0299
91
#define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for
93
#define DEFAULT_INITIATOR_ID 7
95
#define MAX_SGLIST 64 /* max supported in f/w */
96
#define MIN_SGLIST 26 /* guaranteed to support these many */
97
#define MAX_COMMANDS 126
98
#define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS
99
is less than max commands
100
supported by any f/w */
102
#define MAX_CDB_LEN 10
103
#define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */
105
#define DEF_CMD_PER_LUN 63
106
#define MAX_CMD_PER_LUN MAX_COMMANDS
107
#define MAX_FIRMWARE_STATUS 46
108
#define MAX_XFER_PER_CMD (64*1024)
109
#define MAX_SECTORS_PER_IO 128
111
#define MAX_LOGICAL_DRIVES_40LD 40
112
#define FC_MAX_PHYSICAL_DEVICES 256
113
#define MAX_LOGICAL_DRIVES_8LD 8
114
#define MAX_CHANNELS 5
115
#define MAX_TARGET 15
116
#define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET
117
#define MAX_ROW_SIZE_40LD 32
118
#define MAX_ROW_SIZE_8LD 8
119
#define MAX_SPAN_DEPTH 8
121
#define NVIRT_CHAN 4 /* # of virtual channels to represent
122
up to 60 logical drives */
126
/* 0x2 */ u16 numsectors;
128
/* 0x8 */ u32 xferaddr;
130
/* 0xD */ u8 numsgelements;
132
} __attribute__ ((packed));
135
/* 0xF */ volatile u8 busy;
136
/* 0x10 */ volatile u8 numstatus;
137
/* 0x11 */ volatile u8 status;
138
/* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS];
141
} __attribute__ ((packed));
144
struct mbox_out m_out;
146
} __attribute__ ((packed)) mbox_t;
152
} __attribute__ ((packed)) mbox64_t;
156
* Passthru definitions
158
#define MAX_REQ_SENSE_LEN 0x20
161
u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
165
u8 logdrv; /* if islogical == 1 */
166
u8 channel; /* if islogical == 0 */
167
u8 target; /* if islogical == 0 */
168
u8 queuetag; /* unused */
169
u8 queueaction; /* unused */
173
u8 reqsensearea[MAX_REQ_SENSE_LEN];
178
} __attribute__ ((packed)) mega_passthru;
182
* Extended passthru: support CDB > 10 bytes
185
u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
191
u8 logdrv; /* if islogical == 1 */
192
u8 channel; /* if islogical == 0 */
193
u8 target; /* if islogical == 0 */
194
u8 queuetag; /* unused */
195
u8 queueaction; /* unused */
198
u8 cdb[MAX_EXT_CDB_LEN];
202
u8 reqsensearea[MAX_REQ_SENSE_LEN];
206
} __attribute__ ((packed)) mega_ext_passthru;
211
} __attribute__ ((packed)) mega_sgl64;
216
} __attribute__ ((packed)) mega_sglist;
219
/* Queued command data */
223
struct list_head list;
229
dma_addr_t dma_h_bulkdata;
230
dma_addr_t dma_h_sgdata;
234
dma_addr_t sgl_dma_addr;
236
mega_passthru *pthru;
237
dma_addr_t pthru_dma_addr;
238
mega_ext_passthru *epthru;
239
dma_addr_t epthru_dma_addr;
243
* Flags to follow the scb as it transitions between various stages
245
#define SCB_FREE 0x0000 /* on the free list */
246
#define SCB_ACTIVE 0x0001 /* off the free list */
247
#define SCB_PENDQ 0x0002 /* on the pending queue */
248
#define SCB_ISSUED 0x0004 /* issued - owner f/w */
249
#define SCB_ABORT 0x0008 /* Got an abort for this one */
250
#define SCB_RESET 0x0010 /* Got a reset for this one */
253
* Utilities declare this strcture size as 1024 bytes. So more fields can
254
* be added in future.
257
u32 data_size; /* current size in bytes (not including resvd) */
259
u32 config_signature;
260
/* Current value is 0x00282008
261
* 0x28=MAX_LOGICAL_DRIVES,
262
* 0x20=Number of stripes and
263
* 0x08=Number of spans */
265
u8 fw_version[16]; /* printable ASCI string */
266
u8 bios_version[16]; /* printable ASCI string */
267
u8 product_name[80]; /* printable ASCI string */
269
u8 max_commands; /* Max. concurrent commands supported */
270
u8 nchannels; /* Number of SCSI Channels detected */
271
u8 fc_loop_present; /* Number of Fibre Loops detected */
272
u8 mem_type; /* EDO, FPM, SDRAM etc */
275
u16 dram_size; /* In terms of MB */
280
u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */
281
} __attribute__ ((packed)) mega_product_info;
284
u32 global_counter; /* Any change increments this counter */
286
u8 param_counter; /* Indicates any params changed */
287
u8 param_id; /* Param modified - defined below */
288
u16 param_val; /* New val of last param modified */
290
u8 write_config_counter; /* write config occurred */
291
u8 write_config_rsvd[3];
293
u8 ldrv_op_counter; /* Indicates ldrv op started/completed */
294
u8 ldrv_opid; /* ldrv num */
295
u8 ldrv_opcmd; /* ldrv operation - defined below */
296
u8 ldrv_opstatus; /* status of the operation */
298
u8 ldrv_state_counter; /* Indicates change of ldrv state */
299
u8 ldrv_state_id; /* ldrv num */
300
u8 ldrv_state_new; /* New state */
301
u8 ldrv_state_old; /* old state */
303
u8 pdrv_state_counter; /* Indicates change of ldrv state */
304
u8 pdrv_state_id; /* pdrv id */
305
u8 pdrv_state_new; /* New state */
306
u8 pdrv_state_old; /* old state */
308
u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */
309
u8 pdrv_fmt_id; /* pdrv id */
310
u8 pdrv_fmt_val; /* format started/over */
313
u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */
314
u8 targ_xfer_id; /* pdrv Id */
315
u8 targ_xfer_val; /* new Xfer params of last pdrv */
318
u8 fcloop_id_chg_counter; /* Indicates loopid changed */
319
u8 fcloopid_pdrvid; /* pdrv id */
320
u8 fcloop_id0; /* loopid on fc loop 0 */
321
u8 fcloop_id1; /* loopid on fc loop 1 */
323
u8 fcloop_state_counter; /* Indicates loop state changed */
324
u8 fcloop_state0; /* state of fc loop 0 */
325
u8 fcloop_state1; /* state of fc loop 1 */
326
u8 fcloop_state_rsvd;
327
} __attribute__ ((packed));
329
#define MAX_NOTIFY_SIZE 0x80
330
#define CUR_NOTIFY_SIZE sizeof(struct notify)
333
u32 data_size; /* current size in bytes (not including resvd) */
335
struct notify notify;
337
u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE];
339
u8 rebuild_rate; /* Rebuild rate (0% - 100%) */
340
u8 cache_flush_interval; /* In terms of Seconds */
342
u8 drive_insert_count; /* drive insertion count */
345
u8 num_ldrv; /* No. of Log Drives configured */
346
u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of
348
u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv
351
u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */
352
u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD];
353
u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */
354
u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */
355
u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16];
357
u8 targ_xfer[80]; /* phys device transfer rate */
358
u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */
359
} __attribute__ ((packed)) mega_inquiry3;
364
u8 max_commands; /* Max concurrent commands supported */
365
u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */
366
u8 max_targ_per_chan; /* Max targ per channel */
367
u8 nchannels; /* Number of channels on HBA */
368
u8 fw_version[4]; /* Firmware version */
369
u16 age_of_flash; /* Number of times FW has been flashed */
370
u8 chip_set_value; /* Contents of 0xC0000832 */
371
u8 dram_size; /* In MB */
372
u8 cache_flush_interval; /* in seconds */
376
u8 write_config_count; /* Increase with every configuration
378
u8 drive_inserted_count; /* Increase with every drive inserted
380
u8 inserted_drive; /* Channel:Id of inserted drive */
381
u8 battery_status; /*
382
* BIT 0: battery module missing
384
* BIT 2: temperature high
385
* BIT 3: battery pack missing
387
* 00 - charge complete
388
* 01 - fast charge in progress
389
* 10 - fast charge fail
391
* Bit 6: counter > 1000
394
u8 dec_fault_bus_info;
395
} __attribute__ ((packed)) mega_adp_info;
399
u8 num_ldrv; /* Number of logical drives configured */
401
u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD];
402
u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD];
403
u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD];
404
} __attribute__ ((packed)) mega_ldrv_info;
407
u8 pdrv_state[MAX_PHYSICAL_DRIVES];
409
} __attribute__ ((packed)) mega_pdrv_info;
411
/* RAID inquiry: Mailbox command 0x05*/
413
mega_adp_info adapter_info;
414
mega_ldrv_info logdrv_info;
415
mega_pdrv_info pdrv_info;
416
} __attribute__ ((packed)) mraid_inquiry;
419
/* RAID extended inquiry: Mailbox command 0x04*/
421
mraid_inquiry raid_inq;
422
u16 phys_drv_format[MAX_CHANNELS];
426
} __attribute__ ((packed)) mraid_ext_inquiry;
432
}__attribute__ ((packed)) adp_device;
435
u32 start_blk; /* starting block */
436
u32 num_blks; /* # of blocks */
437
adp_device device[MAX_ROW_SIZE_40LD];
438
}__attribute__ ((packed)) adp_span_40ld;
441
u32 start_blk; /* starting block */
442
u32 num_blks; /* # of blocks */
443
adp_device device[MAX_ROW_SIZE_8LD];
444
}__attribute__ ((packed)) adp_span_8ld;
447
u8 span_depth; /* Total # of spans */
448
u8 level; /* RAID level */
449
u8 read_ahead; /* read ahead, no read ahead, adaptive read
451
u8 stripe_sz; /* Encoded stripe size */
452
u8 status; /* Status of the logical drive */
453
u8 write_mode; /* write mode, write_through/write_back */
454
u8 direct_io; /* direct io or through cache */
455
u8 row_size; /* Number of stripes in a row */
456
} __attribute__ ((packed)) logdrv_param;
460
adp_span_40ld span[MAX_SPAN_DEPTH];
461
}__attribute__ ((packed)) logdrv_40ld;
465
adp_span_8ld span[MAX_SPAN_DEPTH];
466
}__attribute__ ((packed)) logdrv_8ld;
469
u8 type; /* Type of the device */
470
u8 cur_status; /* current status of the device */
471
u8 tag_depth; /* Level of tagging */
472
u8 sync_neg; /* sync negotiation - ENABLE or DISABLE */
473
u32 size; /* configurable size in terms of 512 byte
475
}__attribute__ ((packed)) phys_drv;
478
u8 nlog_drives; /* number of logical drives */
480
logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD];
481
phys_drv pdrv[MAX_PHYSICAL_DRIVES];
482
}__attribute__ ((packed)) disk_array_40ld;
485
u8 nlog_drives; /* number of logical drives */
487
logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD];
488
phys_drv pdrv[MAX_PHYSICAL_DRIVES];
489
}__attribute__ ((packed)) disk_array_8ld;
493
* User ioctl structure.
494
* This structure will be used for Traditional Method ioctl interface
495
* commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the
497
* The Driver ioctl interface handles the commands at the driver level,
498
* without being sent to the card.
500
/* system call imposed limit. Change accordingly */
501
#define IOCTL_MAX_DATALEN 4096
512
#if BITS_PER_LONG == 32
516
#if BITS_PER_LONG == 64
520
} __attribute__ ((packed)) fcs;
521
} __attribute__ ((packed)) ui;
522
u8 mbox[18]; /* 16 bytes + 2 status bytes */
524
#if BITS_PER_LONG == 32
525
char __user *data; /* buffer <= 4096 for 0x80 commands */
528
#if BITS_PER_LONG == 64
531
} __attribute__ ((packed));
534
* struct mcontroller is used to pass information about the controllers in the
535
* system. Its up to the application how to use the information. We are passing
536
* as much info about the cards as possible and useful. Before issuing the
537
* call to find information about the cards, the application needs to issue a
538
* ioctl first to find out the number of controllers in the system.
540
#define MAX_CONTROLLERS 32
556
* mailbox structure used for internal commands
569
} __attribute__ ((packed)) megacmd_t;
572
* Defines for Driver IOCTL interface
574
#define MEGAIOC_MAGIC 'm'
576
#define MEGAIOC_QNADAP 'm' /* Query # of adapters */
577
#define MEGAIOC_QDRVRVER 'e' /* Query driver version */
578
#define MEGAIOC_QADAPINFO 'g' /* Query adapter information */
579
#define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) )
580
#define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 )
583
* Definition for the new ioctl interface (NIT)
587
* Vendor specific Group-7 commands
589
#define VENDOR_SPECIFIC_COMMANDS 0xE0
590
#define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01
593
* The ioctl command. No other command shall be used for this interface
595
#define USCSICMD VENDOR_SPECIFIC_COMMANDS
598
* Data direction flags
600
#define UIOC_RD 0x00001
601
#define UIOC_WR 0x00002
606
#define MBOX_CMD 0x00000 /* DCMD or passthru command */
607
#define GET_DRIVER_VER 0x10000 /* Get driver version */
608
#define GET_N_ADAP 0x20000 /* Get number of adapters */
609
#define GET_ADAP_INFO 0x30000 /* Get information about a adapter */
610
#define GET_CAP 0x40000 /* Get ioctl capabilities */
611
#define GET_STATS 0x50000 /* Get statistics, including error info */
615
* The ioctl structure.
616
* MBOX macro converts a nitioctl_t structure to megacmd_t pointer and
617
* MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer.
620
char signature[8]; /* Must contain "MEGANIT" */
621
u32 opcode; /* opcode for the command */
622
u32 adapno; /* adapter number */
625
void __user *__uaddr; /* xferaddr for non-mbox cmds */
628
#define uioc_rmbox __ua.__raw_mbox
629
#define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0]))
630
#define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0]))
631
#define uioc_uaddr __ua.__uaddr
633
u32 xferlen; /* xferlen for DCMD and non-mbox
635
u32 flags; /* data direction flags */
640
* I/O statistics for some applications like SNMP agent. The caller must
641
* provide the number of logical drives for which status should be reported.
644
int num_ldrv; /* Number for logical drives for which the
645
status should be reported. */
646
u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for
647
each logical drive */
648
u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks
649
read for each logical
651
u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes
654
u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks
657
u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read
660
u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write
666
struct private_bios_data {
668
* bits 0-3 - BIOS geometry
672
* Others values are invalid
674
u8 unused:4; /* bits 4-7 are unused */
676
* logical drive set as boot drive
677
* 0..7 - for 8LD cards
678
* 0..39 - for 40LD cards
681
u16 cksum; /* 0-(sum of first 13 bytes of this structure) */
682
} __attribute__ ((packed));
688
* Mailbox and firmware commands and subopcodes used in this driver.
691
#define MEGA_MBOXCMD_LREAD 0x01
692
#define MEGA_MBOXCMD_LWRITE 0x02
693
#define MEGA_MBOXCMD_PASSTHRU 0x03
694
#define MEGA_MBOXCMD_ADPEXTINQ 0x04
695
#define MEGA_MBOXCMD_ADAPTERINQ 0x05
696
#define MEGA_MBOXCMD_LREAD64 0xA7
697
#define MEGA_MBOXCMD_LWRITE64 0xA8
698
#define MEGA_MBOXCMD_PASSTHRU64 0xC3
699
#define MEGA_MBOXCMD_EXTPTHRU 0xE3
701
#define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */
702
#define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */
704
#define FC_NEW_CONFIG 0xA1
705
#define NC_SUBOP_PRODUCT_INFO 0x0E
706
#define NC_SUBOP_ENQUIRY3 0x0F
707
#define ENQ3_GET_SOLICITED_FULL 0x02
708
#define OP_DCMD_READ_CONFIG 0x04
709
#define NEW_READ_CONFIG_8LD 0x67
710
#define READ_CONFIG_8LD 0x07
711
#define FLUSH_ADAPTER 0x0A
712
#define FLUSH_SYSTEM 0xFE
715
* Command for random deletion of logical drives
717
#define FC_DEL_LOGDRV 0xA4 /* f/w command */
718
#define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */
719
#define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */
720
#define OP_DEL_LOGDRV 0x1C /* delete logical drive */
725
#define IS_BIOS_ENABLED 0x62
726
#define GET_BIOS 0x01
727
#define CHNL_CLASS 0xA9
728
#define GET_CHNL_CLASS 0x00
729
#define SET_CHNL_CLASS 0x01
732
#define BIOS_PVT_DATA 0x40
733
#define GET_BIOS_PVT_DATA 0x00
737
* Commands to support clustering
739
#define MEGA_GET_TARGET_ID 0x7D
740
#define MEGA_CLUSTER_OP 0x70
741
#define MEGA_GET_CLUSTER_MODE 0x02
742
#define MEGA_CLUSTER_CMD 0x6E
743
#define MEGA_RESERVE_LD 0x01
744
#define MEGA_RELEASE_LD 0x02
745
#define MEGA_RESET_RESERVATIONS 0x03
746
#define MEGA_RESERVATION_STATUS 0x04
747
#define MEGA_RESERVE_PD 0x05
748
#define MEGA_RELEASE_PD 0x06
752
* Module battery status
754
#define MEGA_BATT_MODULE_MISSING 0x01
755
#define MEGA_BATT_LOW_VOLTAGE 0x02
756
#define MEGA_BATT_TEMP_HIGH 0x04
757
#define MEGA_BATT_PACK_MISSING 0x08
758
#define MEGA_BATT_CHARGE_MASK 0x30
759
#define MEGA_BATT_CHARGE_DONE 0x00
760
#define MEGA_BATT_CHARGE_INPROG 0x10
761
#define MEGA_BATT_CHARGE_FAIL 0x20
762
#define MEGA_BATT_CYCLES_EXCEEDED 0x40
765
* Physical drive states.
768
#define PDRV_ONLINE 3
769
#define PDRV_FAILED 4
771
#define PDRV_HOTSPARE 6
775
* Raid logical drive states.
777
#define RDRV_OFFLINE 0
778
#define RDRV_DEGRADED 1
779
#define RDRV_OPTIMAL 2
780
#define RDRV_DELETED 3
783
* Read, write and cache policies
785
#define NO_READ_AHEAD 0
787
#define ADAP_READ_AHEAD 2
788
#define WRMODE_WRITE_THRU 0
789
#define WRMODE_WRITE_BACK 1
794
#define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp))
797
* Each controller's soft state
800
int this_id; /* our id, may set to different than 7 if
801
clustering is available */
805
void __iomem *mmio_base;
807
/* mbox64 with mbox not aligned on 16-byte boundary */
808
mbox64_t *una_mbox64;
809
dma_addr_t una_mbox64_dma;
811
volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */
812
volatile mbox_t *mbox; /* ptr to standard mailbox */
817
struct list_head free_list;
818
struct list_head pending_list;
819
struct list_head completed_list;
821
struct Scsi_Host *host;
823
#define MEGA_BUFFER_SIZE (2*1024)
825
dma_addr_t buf_dma_handle;
827
mega_product_info product_info;
832
atomic_t pend_cmds; /* maintain a counter for pending
833
commands in firmware */
836
u32 nreads[MAX_LOGICAL_DRIVES_40LD];
837
u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD];
838
u32 nwrites[MAX_LOGICAL_DRIVES_40LD];
839
u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD];
840
u32 rd_errors[MAX_LOGICAL_DRIVES_40LD];
841
u32 wr_errors[MAX_LOGICAL_DRIVES_40LD];
844
/* Host adapter parameters */
849
#ifdef CONFIG_PROC_FS
850
struct proc_dir_entry *controller_proc_dir_entry;
851
struct proc_dir_entry *proc_read;
852
struct proc_dir_entry *proc_stat;
853
struct proc_dir_entry *proc_mbox;
855
#if MEGA_HAVE_ENH_PROC
856
struct proc_dir_entry *proc_rr;
857
struct proc_dir_entry *proc_battery;
858
#define MAX_PROC_CHANNELS 4
859
struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS];
860
struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS];
865
int has_64bit_addr; /* are we using 64-bit addressing */
867
int boot_ldrv_enabled;
869
int boot_pdrv_enabled; /* boot from physical drive */
870
int boot_pdrv_ch; /* boot physical drive channel */
871
int boot_pdrv_tgt; /* boot physical drive target */
874
int support_random_del; /* Do we support random deletion of
876
int read_ldidmap; /* set after logical drive deltion. The
877
logical drive number must be read from the
879
atomic_t quiescent; /* a stage reached when delete logical
880
drive needs to be done. Stop
881
sending requests to the hba till
882
delete operation is completed */
885
u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on
889
u8 sglen; /* f/w supported scatter-gather list length */
891
unsigned char int_cdb[MAX_COMMAND_SIZE];
893
struct mutex int_mtx; /* To synchronize the internal
895
struct completion int_waitq; /* wait queue for internal
898
int has_cluster; /* cluster support on this HBA */
904
adapter_t *hostdata_addr;
909
* For state flag. Do not use LSB(8 bits) which are
910
* reserved for storing info about channels.
912
#define IN_ABORT 0x80000000L
913
#define IN_RESET 0x40000000L
914
#define BOARD_MEMMAP 0x20000000L
915
#define BOARD_IOMAP 0x10000000L
916
#define BOARD_40LD 0x08000000L
917
#define BOARD_64BIT 0x04000000L
919
#define INTR_VALID 0x40
921
#define PCI_CONF_AMISIG 0xa0
922
#define PCI_CONF_AMISIG64 0xa4
925
#define MEGA_DMA_TYPE_NONE 0xFFFF
926
#define MEGA_BULK_DATA 0x0001
927
#define MEGA_SGLIST 0x0002
930
* Parameters for the io-mapped controllers
933
/* I/O Port offsets */
934
#define CMD_PORT 0x00
935
#define ACK_PORT 0x00
936
#define TOGGLE_PORT 0x01
937
#define INTR_PORT 0x0a
939
#define MBOX_BUSY_PORT 0x00
940
#define MBOX_PORT0 0x04
941
#define MBOX_PORT1 0x05
942
#define MBOX_PORT2 0x06
943
#define MBOX_PORT3 0x07
944
#define ENABLE_MBOX_REGION 0x0B
946
/* I/O Port Values */
947
#define ISSUE_BYTE 0x10
948
#define ACK_BYTE 0x08
949
#define ENABLE_INTR_BYTE 0xc0
950
#define DISABLE_INTR_BYTE 0x00
951
#define VALID_INTR_BYTE 0x40
952
#define MBOX_BUSY_BYTE 0x10
953
#define ENABLE_MBOX_BYTE 0x00
956
/* Setup some port macros here */
957
#define issue_command(adapter) \
958
outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT)
960
#define irq_state(adapter) inb_p((adapter)->base + INTR_PORT)
962
#define set_irq_state(adapter, value) \
963
outb_p((value), (adapter)->base + INTR_PORT)
965
#define irq_ack(adapter) \
966
outb_p(ACK_BYTE, (adapter)->base + ACK_PORT)
968
#define irq_enable(adapter) \
969
outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
971
#define irq_disable(adapter) \
972
outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
976
* This is our SYSDEP area. All kernel specific detail should be placed here -
977
* as much as possible
984
const char *megaraid_info (struct Scsi_Host *);
986
static int mega_query_adapter(adapter_t *);
987
static int issue_scb(adapter_t *, scb_t *);
988
static int mega_setup_mailbox(adapter_t *);
990
static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *);
991
static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *);
992
static void __mega_runpendq(adapter_t *);
993
static int issue_scb_block(adapter_t *, u_char *);
995
static irqreturn_t megaraid_isr_memmapped(int, void *);
996
static irqreturn_t megaraid_isr_iomapped(int, void *);
998
static void mega_free_scb(adapter_t *, scb_t *);
1000
static int megaraid_abort(Scsi_Cmnd *);
1001
static int megaraid_reset(Scsi_Cmnd *);
1002
static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int);
1003
static int megaraid_biosparam(struct scsi_device *, struct block_device *,
1006
static int mega_build_sglist (adapter_t *adapter, scb_t *scb,
1007
u32 *buffer, u32 *length);
1008
static int __mega_busywait_mbox (adapter_t *);
1009
static void mega_rundoneq (adapter_t *);
1010
static void mega_cmd_done(adapter_t *, u8 [], int, int);
1011
static inline void mega_free_sgl (adapter_t *adapter);
1012
static void mega_8_to_40ld (mraid_inquiry *inquiry,
1013
mega_inquiry3 *enquiry3, mega_product_info *);
1015
static int megadev_open (struct inode *, struct file *);
1016
static int megadev_ioctl (struct file *, unsigned int, unsigned long);
1017
static int mega_m_to_n(void __user *, nitioctl_t *);
1018
static int mega_n_to_m(void __user *, megacmd_t *);
1020
static int mega_init_scb (adapter_t *);
1022
static int mega_is_bios_enabled (adapter_t *);
1024
#ifdef CONFIG_PROC_FS
1025
static int mega_print_inquiry(char *, char *);
1026
static void mega_create_proc_entry(int, struct proc_dir_entry *);
1027
static int proc_read_config(char *, char **, off_t, int, int *, void *);
1028
static int proc_read_stat(char *, char **, off_t, int, int *, void *);
1029
static int proc_read_mbox(char *, char **, off_t, int, int *, void *);
1030
static int proc_rebuild_rate(char *, char **, off_t, int, int *, void *);
1031
static int proc_battery(char *, char **, off_t, int, int *, void *);
1032
static int proc_pdrv_ch0(char *, char **, off_t, int, int *, void *);
1033
static int proc_pdrv_ch1(char *, char **, off_t, int, int *, void *);
1034
static int proc_pdrv_ch2(char *, char **, off_t, int, int *, void *);
1035
static int proc_pdrv_ch3(char *, char **, off_t, int, int *, void *);
1036
static int proc_pdrv(adapter_t *, char *, int);
1037
static int proc_rdrv_10(char *, char **, off_t, int, int *, void *);
1038
static int proc_rdrv_20(char *, char **, off_t, int, int *, void *);
1039
static int proc_rdrv_30(char *, char **, off_t, int, int *, void *);
1040
static int proc_rdrv_40(char *, char **, off_t, int, int *, void *);
1041
static int proc_rdrv(adapter_t *, char *, int, int);
1043
static int mega_adapinq(adapter_t *, dma_addr_t);
1044
static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t);
1047
static int mega_support_ext_cdb(adapter_t *);
1048
static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *,
1049
Scsi_Cmnd *, int, int);
1050
static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *,
1051
scb_t *, Scsi_Cmnd *, int, int);
1052
static void mega_enum_raid_scsi(adapter_t *);
1053
static void mega_get_boot_drv(adapter_t *);
1054
static int mega_support_random_del(adapter_t *);
1055
static int mega_del_logdrv(adapter_t *, int);
1056
static int mega_do_del_logdrv(adapter_t *, int);
1057
static void mega_get_max_sgl(adapter_t *);
1058
static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *);
1059
static void mega_internal_done(Scsi_Cmnd *);
1060
static int mega_support_cluster(adapter_t *);
1063
/* vi: set ts=8 sw=8 tw=78: */