3 * Linux MegaRAID device driver
5 * Copyright (c) 2002 LSI Logic Corporation.
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
12 * Copyright (c) 2002 Red Hat, Inc. All rights reserved.
14 * - speed-ups (list handling fixes, issued_list, optimizations.)
17 * Copyright (c) 2003 Christoph Hellwig <hch@lst.de>
18 * - new-style, hotplug-aware pci probing and scsi registration
20 * Version : v2.00.4 Mon Nov 14 14:02:43 EST 2005 - Seokmann Ju
21 * <Seokmann.Ju@lsil.com>
23 * Description: Linux device driver for LSI Logic MegaRAID controller
25 * Supported controllers: MegaRAID 418, 428, 438, 466, 762, 467, 471, 490, 493
28 * This driver is supported by LSI Logic, with assistance from Red Hat, Dell,
29 * and others. Please send updates to the mailing list
30 * linux-scsi@vger.kernel.org .
36 #include <linux/blkdev.h>
37 #include <asm/uaccess.h>
39 #include <linux/completion.h>
40 #include <linux/delay.h>
41 #include <linux/proc_fs.h>
42 #include <linux/reboot.h>
43 #include <linux/module.h>
44 #include <linux/list.h>
45 #include <linux/interrupt.h>
46 #include <linux/pci.h>
47 #include <linux/init.h>
48 #include <linux/dma-mapping.h>
49 #include <linux/mutex.h>
50 #include <linux/slab.h>
51 #include <scsi/scsicam.h>
54 #include <scsi/scsi_host.h>
58 #define MEGARAID_MODULE_VERSION "2.00.4"
60 MODULE_AUTHOR ("sju@lsil.com");
61 MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver");
62 MODULE_LICENSE ("GPL");
63 MODULE_VERSION(MEGARAID_MODULE_VERSION
);
65 static DEFINE_MUTEX(megadev_mutex
);
66 static unsigned int max_cmd_per_lun
= DEF_CMD_PER_LUN
;
67 module_param(max_cmd_per_lun
, uint
, 0);
68 MODULE_PARM_DESC(max_cmd_per_lun
, "Maximum number of commands which can be issued to a single LUN (default=DEF_CMD_PER_LUN=63)");
70 static unsigned short int max_sectors_per_io
= MAX_SECTORS_PER_IO
;
71 module_param(max_sectors_per_io
, ushort
, 0);
72 MODULE_PARM_DESC(max_sectors_per_io
, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)");
75 static unsigned short int max_mbox_busy_wait
= MBOX_BUSY_WAIT
;
76 module_param(max_mbox_busy_wait
, ushort
, 0);
77 MODULE_PARM_DESC(max_mbox_busy_wait
, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)");
79 #define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20)
80 #define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C)
81 #define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20)
82 #define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C)
89 static adapter_t
*hba_soft_state
[MAX_CONTROLLERS
];
90 static struct proc_dir_entry
*mega_proc_dir_entry
;
92 /* For controller re-ordering */
93 static struct mega_hbas mega_hbas
[MAX_CONTROLLERS
];
96 megadev_unlocked_ioctl(struct file
*filep
, unsigned int cmd
, unsigned long arg
);
99 * The File Operations structure for the serial/ioctl interface of the driver
101 static const struct file_operations megadev_fops
= {
102 .owner
= THIS_MODULE
,
103 .unlocked_ioctl
= megadev_unlocked_ioctl
,
104 .open
= megadev_open
,
105 .llseek
= noop_llseek
,
109 * Array to structures for storing the information about the controllers. This
110 * information is sent to the user level applications, when they do an ioctl
111 * for this information.
113 static struct mcontroller mcontroller
[MAX_CONTROLLERS
];
115 /* The current driver version */
116 static u32 driver_ver
= 0x02000000;
118 /* major number used by the device for character interface */
121 #define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01)
125 * Debug variable to print some diagnostic messages
127 static int trace_level
;
130 * mega_setup_mailbox()
131 * @adapter - pointer to our soft state
133 * Allocates a 8 byte aligned memory for the handshake mailbox.
136 mega_setup_mailbox(adapter_t
*adapter
)
140 adapter
->una_mbox64
= pci_alloc_consistent(adapter
->dev
,
141 sizeof(mbox64_t
), &adapter
->una_mbox64_dma
);
143 if( !adapter
->una_mbox64
) return -1;
145 adapter
->mbox
= &adapter
->una_mbox64
->mbox
;
147 adapter
->mbox
= (mbox_t
*)((((unsigned long) adapter
->mbox
) + 15) &
150 adapter
->mbox64
= (mbox64_t
*)(((unsigned long)adapter
->mbox
) - 8);
152 align
= ((void *)adapter
->mbox
) - ((void *)&adapter
->una_mbox64
->mbox
);
154 adapter
->mbox_dma
= adapter
->una_mbox64_dma
+ 8 + align
;
157 * Register the mailbox if the controller is an io-mapped controller
159 if( adapter
->flag
& BOARD_IOMAP
) {
161 outb(adapter
->mbox_dma
& 0xFF,
162 adapter
->host
->io_port
+ MBOX_PORT0
);
164 outb((adapter
->mbox_dma
>> 8) & 0xFF,
165 adapter
->host
->io_port
+ MBOX_PORT1
);
167 outb((adapter
->mbox_dma
>> 16) & 0xFF,
168 adapter
->host
->io_port
+ MBOX_PORT2
);
170 outb((adapter
->mbox_dma
>> 24) & 0xFF,
171 adapter
->host
->io_port
+ MBOX_PORT3
);
173 outb(ENABLE_MBOX_BYTE
,
174 adapter
->host
->io_port
+ ENABLE_MBOX_REGION
);
186 * mega_query_adapter()
187 * @adapter - pointer to our soft state
189 * Issue the adapter inquiry commands to the controller and find out
190 * information and parameter about the devices attached
193 mega_query_adapter(adapter_t
*adapter
)
195 dma_addr_t prod_info_dma_handle
;
196 mega_inquiry3
*inquiry3
;
197 u8 raw_mbox
[sizeof(struct mbox_out
)];
201 /* Initialize adapter inquiry mailbox */
203 mbox
= (mbox_t
*)raw_mbox
;
205 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
206 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
209 * Try to issue Inquiry3 command
210 * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and
211 * update enquiry3 structure
213 mbox
->m_out
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
215 inquiry3
= (mega_inquiry3
*)adapter
->mega_buffer
;
217 raw_mbox
[0] = FC_NEW_CONFIG
; /* i.e. mbox->cmd=0xA1 */
218 raw_mbox
[2] = NC_SUBOP_ENQUIRY3
; /* i.e. 0x0F */
219 raw_mbox
[3] = ENQ3_GET_SOLICITED_FULL
; /* i.e. 0x02 */
221 /* Issue a blocking command to the card */
222 if ((retval
= issue_scb_block(adapter
, raw_mbox
))) {
223 /* the adapter does not support 40ld */
225 mraid_ext_inquiry
*ext_inq
;
227 dma_addr_t dma_handle
;
229 ext_inq
= pci_alloc_consistent(adapter
->dev
,
230 sizeof(mraid_ext_inquiry
), &dma_handle
);
232 if( ext_inq
== NULL
) return -1;
234 inq
= &ext_inq
->raid_inq
;
236 mbox
->m_out
.xferaddr
= (u32
)dma_handle
;
238 /*issue old 0x04 command to adapter */
239 mbox
->m_out
.cmd
= MEGA_MBOXCMD_ADPEXTINQ
;
241 issue_scb_block(adapter
, raw_mbox
);
244 * update Enquiry3 and ProductInfo structures with
245 * mraid_inquiry structure
247 mega_8_to_40ld(inq
, inquiry3
,
248 (mega_product_info
*)&adapter
->product_info
);
250 pci_free_consistent(adapter
->dev
, sizeof(mraid_ext_inquiry
),
251 ext_inq
, dma_handle
);
253 } else { /*adapter supports 40ld */
254 adapter
->flag
|= BOARD_40LD
;
257 * get product_info, which is static information and will be
260 prod_info_dma_handle
= pci_map_single(adapter
->dev
, (void *)
261 &adapter
->product_info
,
262 sizeof(mega_product_info
), PCI_DMA_FROMDEVICE
);
264 mbox
->m_out
.xferaddr
= prod_info_dma_handle
;
266 raw_mbox
[0] = FC_NEW_CONFIG
; /* i.e. mbox->cmd=0xA1 */
267 raw_mbox
[2] = NC_SUBOP_PRODUCT_INFO
; /* i.e. 0x0E */
269 if ((retval
= issue_scb_block(adapter
, raw_mbox
)))
271 "megaraid: Product_info cmd failed with error: %d\n",
274 pci_unmap_single(adapter
->dev
, prod_info_dma_handle
,
275 sizeof(mega_product_info
), PCI_DMA_FROMDEVICE
);
280 * kernel scans the channels from 0 to <= max_channel
282 adapter
->host
->max_channel
=
283 adapter
->product_info
.nchannels
+ NVIRT_CHAN
-1;
285 adapter
->host
->max_id
= 16; /* max targets per channel */
287 adapter
->host
->max_lun
= 7; /* Upto 7 luns for non disk devices */
289 adapter
->host
->cmd_per_lun
= max_cmd_per_lun
;
291 adapter
->numldrv
= inquiry3
->num_ldrv
;
293 adapter
->max_cmds
= adapter
->product_info
.max_commands
;
295 if(adapter
->max_cmds
> MAX_COMMANDS
)
296 adapter
->max_cmds
= MAX_COMMANDS
;
298 adapter
->host
->can_queue
= adapter
->max_cmds
- 1;
301 * Get the maximum number of scatter-gather elements supported by this
304 mega_get_max_sgl(adapter
);
306 adapter
->host
->sg_tablesize
= adapter
->sglen
;
309 /* use HP firmware and bios version encoding */
310 if (adapter
->product_info
.subsysvid
== HP_SUBSYS_VID
) {
311 sprintf (adapter
->fw_version
, "%c%d%d.%d%d",
312 adapter
->product_info
.fw_version
[2],
313 adapter
->product_info
.fw_version
[1] >> 8,
314 adapter
->product_info
.fw_version
[1] & 0x0f,
315 adapter
->product_info
.fw_version
[0] >> 8,
316 adapter
->product_info
.fw_version
[0] & 0x0f);
317 sprintf (adapter
->bios_version
, "%c%d%d.%d%d",
318 adapter
->product_info
.bios_version
[2],
319 adapter
->product_info
.bios_version
[1] >> 8,
320 adapter
->product_info
.bios_version
[1] & 0x0f,
321 adapter
->product_info
.bios_version
[0] >> 8,
322 adapter
->product_info
.bios_version
[0] & 0x0f);
324 memcpy(adapter
->fw_version
,
325 (char *)adapter
->product_info
.fw_version
, 4);
326 adapter
->fw_version
[4] = 0;
328 memcpy(adapter
->bios_version
,
329 (char *)adapter
->product_info
.bios_version
, 4);
331 adapter
->bios_version
[4] = 0;
334 printk(KERN_NOTICE
"megaraid: [%s:%s] detected %d logical drives.\n",
335 adapter
->fw_version
, adapter
->bios_version
, adapter
->numldrv
);
338 * Do we support extended (>10 bytes) cdbs
340 adapter
->support_ext_cdb
= mega_support_ext_cdb(adapter
);
341 if (adapter
->support_ext_cdb
)
342 printk(KERN_NOTICE
"megaraid: supports extended CDBs.\n");
350 * @adapter - pointer to our soft state
352 * Runs through the list of pending requests.
355 mega_runpendq(adapter_t
*adapter
)
357 if(!list_empty(&adapter
->pending_list
))
358 __mega_runpendq(adapter
);
363 * @scmd - Issue this scsi command
364 * @done - the callback hook into the scsi mid-layer
366 * The command queuing entry point for the mid-layer.
369 megaraid_queue(Scsi_Cmnd
*scmd
, void (*done
)(Scsi_Cmnd
*))
376 adapter
= (adapter_t
*)scmd
->device
->host
->hostdata
;
378 scmd
->scsi_done
= done
;
382 * Allocate and build a SCB request
383 * busy flag will be set if mega_build_cmd() command could not
384 * allocate scb. We will return non-zero status in that case.
385 * NOTE: scb can be null even though certain commands completed
386 * successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would
387 * return 0 in that case.
390 spin_lock_irqsave(&adapter
->lock
, flags
);
391 scb
= mega_build_cmd(adapter
, scmd
, &busy
);
395 scb
->state
|= SCB_PENDQ
;
396 list_add_tail(&scb
->list
, &adapter
->pending_list
);
399 * Check if the HBA is in quiescent state, e.g., during a
400 * delete logical drive opertion. If it is, don't run
403 if (atomic_read(&adapter
->quiescent
) == 0)
404 mega_runpendq(adapter
);
408 spin_unlock_irqrestore(&adapter
->lock
, flags
);
413 * mega_allocate_scb()
414 * @adapter - pointer to our soft state
415 * @cmd - scsi command from the mid-layer
417 * Allocate a SCB structure. This is the central structure for controller
420 static inline scb_t
*
421 mega_allocate_scb(adapter_t
*adapter
, Scsi_Cmnd
*cmd
)
423 struct list_head
*head
= &adapter
->free_list
;
426 /* Unlink command from Free List */
427 if( !list_empty(head
) ) {
429 scb
= list_entry(head
->next
, scb_t
, list
);
431 list_del_init(head
->next
);
433 scb
->state
= SCB_ACTIVE
;
435 scb
->dma_type
= MEGA_DMA_TYPE_NONE
;
444 * mega_get_ldrv_num()
445 * @adapter - pointer to our soft state
446 * @cmd - scsi mid layer command
447 * @channel - channel on the controller
449 * Calculate the logical drive number based on the information in scsi command
450 * and the channel number.
453 mega_get_ldrv_num(adapter_t
*adapter
, Scsi_Cmnd
*cmd
, int channel
)
458 tgt
= cmd
->device
->id
;
460 if ( tgt
> adapter
->this_id
)
461 tgt
--; /* we do not get inquires for initiator id */
463 ldrv_num
= (channel
* 15) + tgt
;
467 * If we have a logical drive with boot enabled, project it first
469 if( adapter
->boot_ldrv_enabled
) {
470 if( ldrv_num
== 0 ) {
471 ldrv_num
= adapter
->boot_ldrv
;
474 if( ldrv_num
<= adapter
->boot_ldrv
) {
481 * If "delete logical drive" feature is enabled on this controller.
482 * Do only if at least one delete logical drive operation was done.
484 * Also, after logical drive deletion, instead of logical drive number,
485 * the value returned should be 0x80+logical drive id.
487 * These is valid only for IO commands.
490 if (adapter
->support_random_del
&& adapter
->read_ldidmap
)
491 switch (cmd
->cmnd
[0]) {
492 case READ_6
: /* fall through */
493 case WRITE_6
: /* fall through */
494 case READ_10
: /* fall through */
504 * @adapter - pointer to our soft state
505 * @cmd - Prepare using this scsi command
506 * @busy - busy flag if no resources
508 * Prepares a command and scatter gather list for the controller. This routine
509 * also finds out if the commands is intended for a logical drive or a
510 * physical device and prepares the controller command accordingly.
512 * We also re-order the logical drives and physical devices based on their
516 mega_build_cmd(adapter_t
*adapter
, Scsi_Cmnd
*cmd
, int *busy
)
518 mega_ext_passthru
*epthru
;
519 mega_passthru
*pthru
;
527 int ldrv_num
= 0; /* logical drive number */
531 * filter the internal and ioctl commands
533 if((cmd
->cmnd
[0] == MEGA_INTERNAL_CMD
))
534 return (scb_t
*)cmd
->host_scribble
;
537 * We know what channels our logical drives are on - mega_find_card()
539 islogical
= adapter
->logdrv_chan
[cmd
->device
->channel
];
542 * The theory: If physical drive is chosen for boot, all the physical
543 * devices are exported before the logical drives, otherwise physical
544 * devices are pushed after logical drives, in which case - Kernel sees
545 * the physical devices on virtual channel which is obviously converted
546 * to actual channel on the HBA.
548 if( adapter
->boot_pdrv_enabled
) {
550 /* logical channel */
551 channel
= cmd
->device
->channel
-
552 adapter
->product_info
.nchannels
;
555 /* this is physical channel */
556 channel
= cmd
->device
->channel
;
557 target
= cmd
->device
->id
;
560 * boot from a physical disk, that disk needs to be
561 * exposed first IF both the channels are SCSI, then
562 * booting from the second channel is not allowed.
565 target
= adapter
->boot_pdrv_tgt
;
567 else if( target
== adapter
->boot_pdrv_tgt
) {
574 /* this is the logical channel */
575 channel
= cmd
->device
->channel
;
578 /* physical channel */
579 channel
= cmd
->device
->channel
- NVIRT_CHAN
;
580 target
= cmd
->device
->id
;
587 /* have just LUN 0 for each target on virtual channels */
588 if (cmd
->device
->lun
) {
589 cmd
->result
= (DID_BAD_TARGET
<< 16);
594 ldrv_num
= mega_get_ldrv_num(adapter
, cmd
, channel
);
597 max_ldrv_num
= (adapter
->flag
& BOARD_40LD
) ?
598 MAX_LOGICAL_DRIVES_40LD
: MAX_LOGICAL_DRIVES_8LD
;
601 * max_ldrv_num increases by 0x80 if some logical drive was
604 if(adapter
->read_ldidmap
)
605 max_ldrv_num
+= 0x80;
607 if(ldrv_num
> max_ldrv_num
) {
608 cmd
->result
= (DID_BAD_TARGET
<< 16);
615 if( cmd
->device
->lun
> 7) {
617 * Do not support lun >7 for physically accessed
620 cmd
->result
= (DID_BAD_TARGET
<< 16);
628 * Logical drive commands
632 switch (cmd
->cmnd
[0]) {
633 case TEST_UNIT_READY
:
634 #if MEGA_HAVE_CLUSTERING
636 * Do we support clustering and is the support enabled
637 * If no, return success always
639 if( !adapter
->has_cluster
) {
640 cmd
->result
= (DID_OK
<< 16);
645 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
650 scb
->raw_mbox
[0] = MEGA_CLUSTER_CMD
;
651 scb
->raw_mbox
[2] = MEGA_RESERVATION_STATUS
;
652 scb
->raw_mbox
[3] = ldrv_num
;
654 scb
->dma_direction
= PCI_DMA_NONE
;
658 cmd
->result
= (DID_OK
<< 16);
665 struct scatterlist
*sg
;
667 sg
= scsi_sglist(cmd
);
668 buf
= kmap_atomic(sg_page(sg
), KM_IRQ0
) + sg
->offset
;
670 memset(buf
, 0, cmd
->cmnd
[4]);
671 kunmap_atomic(buf
- sg
->offset
, KM_IRQ0
);
673 cmd
->result
= (DID_OK
<< 16);
681 if(!(adapter
->flag
& (1L << cmd
->device
->channel
))) {
684 "scsi%d: scanning scsi channel %d ",
685 adapter
->host
->host_no
,
686 cmd
->device
->channel
);
687 printk("for logical drives.\n");
689 adapter
->flag
|= (1L << cmd
->device
->channel
);
692 /* Allocate a SCB and initialize passthru */
693 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
699 mbox
= (mbox_t
*)scb
->raw_mbox
;
700 memset(mbox
, 0, sizeof(scb
->raw_mbox
));
701 memset(pthru
, 0, sizeof(mega_passthru
));
705 pthru
->reqsenselen
= 14;
706 pthru
->islogical
= 1;
707 pthru
->logdrv
= ldrv_num
;
708 pthru
->cdblen
= cmd
->cmd_len
;
709 memcpy(pthru
->cdb
, cmd
->cmnd
, cmd
->cmd_len
);
711 if( adapter
->has_64bit_addr
) {
712 mbox
->m_out
.cmd
= MEGA_MBOXCMD_PASSTHRU64
;
715 mbox
->m_out
.cmd
= MEGA_MBOXCMD_PASSTHRU
;
718 scb
->dma_direction
= PCI_DMA_FROMDEVICE
;
720 pthru
->numsgelements
= mega_build_sglist(adapter
, scb
,
721 &pthru
->dataxferaddr
, &pthru
->dataxferlen
);
723 mbox
->m_out
.xferaddr
= scb
->pthru_dma_addr
;
734 /* Allocate a SCB and initialize mailbox */
735 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
739 mbox
= (mbox_t
*)scb
->raw_mbox
;
741 memset(mbox
, 0, sizeof(scb
->raw_mbox
));
742 mbox
->m_out
.logdrv
= ldrv_num
;
745 * A little hack: 2nd bit is zero for all scsi read
746 * commands and is set for all scsi write commands
748 if( adapter
->has_64bit_addr
) {
749 mbox
->m_out
.cmd
= (*cmd
->cmnd
& 0x02) ?
750 MEGA_MBOXCMD_LWRITE64
:
751 MEGA_MBOXCMD_LREAD64
;
754 mbox
->m_out
.cmd
= (*cmd
->cmnd
& 0x02) ?
760 * 6-byte READ(0x08) or WRITE(0x0A) cdb
762 if( cmd
->cmd_len
== 6 ) {
763 mbox
->m_out
.numsectors
= (u32
) cmd
->cmnd
[4];
765 ((u32
)cmd
->cmnd
[1] << 16) |
766 ((u32
)cmd
->cmnd
[2] << 8) |
769 mbox
->m_out
.lba
&= 0x1FFFFF;
773 * Take modulo 0x80, since the logical drive
774 * number increases by 0x80 when a logical
777 if (*cmd
->cmnd
== READ_6
) {
778 adapter
->nreads
[ldrv_num
%0x80]++;
779 adapter
->nreadblocks
[ldrv_num
%0x80] +=
780 mbox
->m_out
.numsectors
;
782 adapter
->nwrites
[ldrv_num
%0x80]++;
783 adapter
->nwriteblocks
[ldrv_num
%0x80] +=
784 mbox
->m_out
.numsectors
;
790 * 10-byte READ(0x28) or WRITE(0x2A) cdb
792 if( cmd
->cmd_len
== 10 ) {
793 mbox
->m_out
.numsectors
=
795 ((u32
)cmd
->cmnd
[7] << 8);
797 ((u32
)cmd
->cmnd
[2] << 24) |
798 ((u32
)cmd
->cmnd
[3] << 16) |
799 ((u32
)cmd
->cmnd
[4] << 8) |
803 if (*cmd
->cmnd
== READ_10
) {
804 adapter
->nreads
[ldrv_num
%0x80]++;
805 adapter
->nreadblocks
[ldrv_num
%0x80] +=
806 mbox
->m_out
.numsectors
;
808 adapter
->nwrites
[ldrv_num
%0x80]++;
809 adapter
->nwriteblocks
[ldrv_num
%0x80] +=
810 mbox
->m_out
.numsectors
;
816 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
818 if( cmd
->cmd_len
== 12 ) {
820 ((u32
)cmd
->cmnd
[2] << 24) |
821 ((u32
)cmd
->cmnd
[3] << 16) |
822 ((u32
)cmd
->cmnd
[4] << 8) |
825 mbox
->m_out
.numsectors
=
826 ((u32
)cmd
->cmnd
[6] << 24) |
827 ((u32
)cmd
->cmnd
[7] << 16) |
828 ((u32
)cmd
->cmnd
[8] << 8) |
832 if (*cmd
->cmnd
== READ_12
) {
833 adapter
->nreads
[ldrv_num
%0x80]++;
834 adapter
->nreadblocks
[ldrv_num
%0x80] +=
835 mbox
->m_out
.numsectors
;
837 adapter
->nwrites
[ldrv_num
%0x80]++;
838 adapter
->nwriteblocks
[ldrv_num
%0x80] +=
839 mbox
->m_out
.numsectors
;
845 * If it is a read command
847 if( (*cmd
->cmnd
& 0x0F) == 0x08 ) {
848 scb
->dma_direction
= PCI_DMA_FROMDEVICE
;
851 scb
->dma_direction
= PCI_DMA_TODEVICE
;
854 /* Calculate Scatter-Gather info */
855 mbox
->m_out
.numsgelements
= mega_build_sglist(adapter
, scb
,
856 (u32
*)&mbox
->m_out
.xferaddr
, (u32
*)&seg
);
860 #if MEGA_HAVE_CLUSTERING
861 case RESERVE
: /* Fall through */
865 * Do we support clustering and is the support enabled
867 if( ! adapter
->has_cluster
) {
869 cmd
->result
= (DID_BAD_TARGET
<< 16);
874 /* Allocate a SCB and initialize mailbox */
875 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
880 scb
->raw_mbox
[0] = MEGA_CLUSTER_CMD
;
881 scb
->raw_mbox
[2] = ( *cmd
->cmnd
== RESERVE
) ?
882 MEGA_RESERVE_LD
: MEGA_RELEASE_LD
;
884 scb
->raw_mbox
[3] = ldrv_num
;
886 scb
->dma_direction
= PCI_DMA_NONE
;
892 cmd
->result
= (DID_BAD_TARGET
<< 16);
899 * Passthru drive commands
902 /* Allocate a SCB and initialize passthru */
903 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
908 mbox
= (mbox_t
*)scb
->raw_mbox
;
909 memset(mbox
, 0, sizeof(scb
->raw_mbox
));
911 if( adapter
->support_ext_cdb
) {
913 epthru
= mega_prepare_extpassthru(adapter
, scb
, cmd
,
916 mbox
->m_out
.cmd
= MEGA_MBOXCMD_EXTPTHRU
;
918 mbox
->m_out
.xferaddr
= scb
->epthru_dma_addr
;
923 pthru
= mega_prepare_passthru(adapter
, scb
, cmd
,
926 /* Initialize mailbox */
927 if( adapter
->has_64bit_addr
) {
928 mbox
->m_out
.cmd
= MEGA_MBOXCMD_PASSTHRU64
;
931 mbox
->m_out
.cmd
= MEGA_MBOXCMD_PASSTHRU
;
934 mbox
->m_out
.xferaddr
= scb
->pthru_dma_addr
;
944 * mega_prepare_passthru()
945 * @adapter - pointer to our soft state
946 * @scb - our scsi control block
947 * @cmd - scsi command from the mid-layer
948 * @channel - actual channel on the controller
949 * @target - actual id on the controller.
951 * prepare a command for the scsi physical devices.
953 static mega_passthru
*
954 mega_prepare_passthru(adapter_t
*adapter
, scb_t
*scb
, Scsi_Cmnd
*cmd
,
955 int channel
, int target
)
957 mega_passthru
*pthru
;
960 memset(pthru
, 0, sizeof (mega_passthru
));
962 /* 0=6sec/1=60sec/2=10min/3=3hrs */
966 pthru
->reqsenselen
= 14;
967 pthru
->islogical
= 0;
969 pthru
->channel
= (adapter
->flag
& BOARD_40LD
) ? 0 : channel
;
971 pthru
->target
= (adapter
->flag
& BOARD_40LD
) ?
972 (channel
<< 4) | target
: target
;
974 pthru
->cdblen
= cmd
->cmd_len
;
975 pthru
->logdrv
= cmd
->device
->lun
;
977 memcpy(pthru
->cdb
, cmd
->cmnd
, cmd
->cmd_len
);
979 /* Not sure about the direction */
980 scb
->dma_direction
= PCI_DMA_BIDIRECTIONAL
;
982 /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */
983 switch (cmd
->cmnd
[0]) {
986 if(!(adapter
->flag
& (1L << cmd
->device
->channel
))) {
989 "scsi%d: scanning scsi channel %d [P%d] ",
990 adapter
->host
->host_no
,
991 cmd
->device
->channel
, channel
);
992 printk("for physical devices.\n");
994 adapter
->flag
|= (1L << cmd
->device
->channel
);
998 pthru
->numsgelements
= mega_build_sglist(adapter
, scb
,
999 &pthru
->dataxferaddr
, &pthru
->dataxferlen
);
1007 * mega_prepare_extpassthru()
1008 * @adapter - pointer to our soft state
1009 * @scb - our scsi control block
1010 * @cmd - scsi command from the mid-layer
1011 * @channel - actual channel on the controller
1012 * @target - actual id on the controller.
1014 * prepare a command for the scsi physical devices. This rountine prepares
1015 * commands for devices which can take extended CDBs (>10 bytes)
1017 static mega_ext_passthru
*
1018 mega_prepare_extpassthru(adapter_t
*adapter
, scb_t
*scb
, Scsi_Cmnd
*cmd
,
1019 int channel
, int target
)
1021 mega_ext_passthru
*epthru
;
1023 epthru
= scb
->epthru
;
1024 memset(epthru
, 0, sizeof(mega_ext_passthru
));
1026 /* 0=6sec/1=60sec/2=10min/3=3hrs */
1027 epthru
->timeout
= 2;
1030 epthru
->reqsenselen
= 14;
1031 epthru
->islogical
= 0;
1033 epthru
->channel
= (adapter
->flag
& BOARD_40LD
) ? 0 : channel
;
1034 epthru
->target
= (adapter
->flag
& BOARD_40LD
) ?
1035 (channel
<< 4) | target
: target
;
1037 epthru
->cdblen
= cmd
->cmd_len
;
1038 epthru
->logdrv
= cmd
->device
->lun
;
1040 memcpy(epthru
->cdb
, cmd
->cmnd
, cmd
->cmd_len
);
1042 /* Not sure about the direction */
1043 scb
->dma_direction
= PCI_DMA_BIDIRECTIONAL
;
1045 switch(cmd
->cmnd
[0]) {
1048 if(!(adapter
->flag
& (1L << cmd
->device
->channel
))) {
1051 "scsi%d: scanning scsi channel %d [P%d] ",
1052 adapter
->host
->host_no
,
1053 cmd
->device
->channel
, channel
);
1054 printk("for physical devices.\n");
1056 adapter
->flag
|= (1L << cmd
->device
->channel
);
1060 epthru
->numsgelements
= mega_build_sglist(adapter
, scb
,
1061 &epthru
->dataxferaddr
, &epthru
->dataxferlen
);
1069 __mega_runpendq(adapter_t
*adapter
)
1072 struct list_head
*pos
, *next
;
1074 /* Issue any pending commands to the card */
1075 list_for_each_safe(pos
, next
, &adapter
->pending_list
) {
1077 scb
= list_entry(pos
, scb_t
, list
);
1079 if( !(scb
->state
& SCB_ISSUED
) ) {
1081 if( issue_scb(adapter
, scb
) != 0 )
1092 * @adapter - pointer to our soft state
1093 * @scb - scsi control block
1095 * Post a command to the card if the mailbox is available, otherwise return
1096 * busy. We also take the scb from the pending list if the mailbox is
1100 issue_scb(adapter_t
*adapter
, scb_t
*scb
)
1102 volatile mbox64_t
*mbox64
= adapter
->mbox64
;
1103 volatile mbox_t
*mbox
= adapter
->mbox
;
1106 if(unlikely(mbox
->m_in
.busy
)) {
1110 } while( mbox
->m_in
.busy
&& (i
< max_mbox_busy_wait
) );
1112 if(mbox
->m_in
.busy
) return -1;
1115 /* Copy mailbox data into host structure */
1116 memcpy((char *)&mbox
->m_out
, (char *)scb
->raw_mbox
,
1117 sizeof(struct mbox_out
));
1119 mbox
->m_out
.cmdid
= scb
->idx
; /* Set cmdid */
1120 mbox
->m_in
.busy
= 1; /* Set busy */
1124 * Increment the pending queue counter
1126 atomic_inc(&adapter
->pend_cmds
);
1128 switch (mbox
->m_out
.cmd
) {
1129 case MEGA_MBOXCMD_LREAD64
:
1130 case MEGA_MBOXCMD_LWRITE64
:
1131 case MEGA_MBOXCMD_PASSTHRU64
:
1132 case MEGA_MBOXCMD_EXTPTHRU
:
1133 mbox64
->xfer_segment_lo
= mbox
->m_out
.xferaddr
;
1134 mbox64
->xfer_segment_hi
= 0;
1135 mbox
->m_out
.xferaddr
= 0xFFFFFFFF;
1138 mbox64
->xfer_segment_lo
= 0;
1139 mbox64
->xfer_segment_hi
= 0;
1145 scb
->state
|= SCB_ISSUED
;
1147 if( likely(adapter
->flag
& BOARD_MEMMAP
) ) {
1148 mbox
->m_in
.poll
= 0;
1150 WRINDOOR(adapter
, adapter
->mbox_dma
| 0x1);
1153 irq_enable(adapter
);
1154 issue_command(adapter
);
1161 * Wait until the controller's mailbox is available
1164 mega_busywait_mbox (adapter_t
*adapter
)
1166 if (adapter
->mbox
->m_in
.busy
)
1167 return __mega_busywait_mbox(adapter
);
1173 * @adapter - pointer to our soft state
1174 * @raw_mbox - the mailbox
1176 * Issue a scb in synchronous and non-interrupt mode
1179 issue_scb_block(adapter_t
*adapter
, u_char
*raw_mbox
)
1181 volatile mbox64_t
*mbox64
= adapter
->mbox64
;
1182 volatile mbox_t
*mbox
= adapter
->mbox
;
1185 /* Wait until mailbox is free */
1186 if(mega_busywait_mbox (adapter
))
1187 goto bug_blocked_mailbox
;
1189 /* Copy mailbox data into host structure */
1190 memcpy((char *) mbox
, raw_mbox
, sizeof(struct mbox_out
));
1191 mbox
->m_out
.cmdid
= 0xFE;
1192 mbox
->m_in
.busy
= 1;
1194 switch (raw_mbox
[0]) {
1195 case MEGA_MBOXCMD_LREAD64
:
1196 case MEGA_MBOXCMD_LWRITE64
:
1197 case MEGA_MBOXCMD_PASSTHRU64
:
1198 case MEGA_MBOXCMD_EXTPTHRU
:
1199 mbox64
->xfer_segment_lo
= mbox
->m_out
.xferaddr
;
1200 mbox64
->xfer_segment_hi
= 0;
1201 mbox
->m_out
.xferaddr
= 0xFFFFFFFF;
1204 mbox64
->xfer_segment_lo
= 0;
1205 mbox64
->xfer_segment_hi
= 0;
1208 if( likely(adapter
->flag
& BOARD_MEMMAP
) ) {
1209 mbox
->m_in
.poll
= 0;
1211 mbox
->m_in
.numstatus
= 0xFF;
1212 mbox
->m_in
.status
= 0xFF;
1213 WRINDOOR(adapter
, adapter
->mbox_dma
| 0x1);
1215 while((volatile u8
)mbox
->m_in
.numstatus
== 0xFF)
1218 mbox
->m_in
.numstatus
= 0xFF;
1220 while( (volatile u8
)mbox
->m_in
.poll
!= 0x77 )
1223 mbox
->m_in
.poll
= 0;
1224 mbox
->m_in
.ack
= 0x77;
1226 WRINDOOR(adapter
, adapter
->mbox_dma
| 0x2);
1228 while(RDINDOOR(adapter
) & 0x2)
1232 irq_disable(adapter
);
1233 issue_command(adapter
);
1235 while (!((byte
= irq_state(adapter
)) & INTR_VALID
))
1238 set_irq_state(adapter
, byte
);
1239 irq_enable(adapter
);
1243 return mbox
->m_in
.status
;
1245 bug_blocked_mailbox
:
1246 printk(KERN_WARNING
"megaraid: Blocked mailbox......!!\n");
1253 * megaraid_isr_iomapped()
1255 * @devp - pointer to our soft state
1257 * Interrupt service routine for io-mapped controllers.
1258 * Find out if our device is interrupting. If yes, acknowledge the interrupt
1259 * and service the completed commands.
1262 megaraid_isr_iomapped(int irq
, void *devp
)
1264 adapter_t
*adapter
= devp
;
1265 unsigned long flags
;
1268 u8 completed
[MAX_FIRMWARE_STATUS
];
1274 * loop till F/W has more commands for us to complete.
1276 spin_lock_irqsave(&adapter
->lock
, flags
);
1279 /* Check if a valid interrupt is pending */
1280 byte
= irq_state(adapter
);
1281 if( (byte
& VALID_INTR_BYTE
) == 0 ) {
1283 * No more pending commands
1287 set_irq_state(adapter
, byte
);
1289 while((nstatus
= (volatile u8
)adapter
->mbox
->m_in
.numstatus
)
1292 adapter
->mbox
->m_in
.numstatus
= 0xFF;
1294 status
= adapter
->mbox
->m_in
.status
;
1297 * decrement the pending queue counter
1299 atomic_sub(nstatus
, &adapter
->pend_cmds
);
1301 memcpy(completed
, (void *)adapter
->mbox
->m_in
.completed
,
1304 /* Acknowledge interrupt */
1307 mega_cmd_done(adapter
, completed
, nstatus
, status
);
1309 mega_rundoneq(adapter
);
1313 /* Loop through any pending requests */
1314 if(atomic_read(&adapter
->quiescent
) == 0) {
1315 mega_runpendq(adapter
);
1322 spin_unlock_irqrestore(&adapter
->lock
, flags
);
1324 return IRQ_RETVAL(handled
);
1329 * megaraid_isr_memmapped()
1331 * @devp - pointer to our soft state
1333 * Interrupt service routine for memory-mapped controllers.
1334 * Find out if our device is interrupting. If yes, acknowledge the interrupt
1335 * and service the completed commands.
1338 megaraid_isr_memmapped(int irq
, void *devp
)
1340 adapter_t
*adapter
= devp
;
1341 unsigned long flags
;
1345 u8 completed
[MAX_FIRMWARE_STATUS
];
1350 * loop till F/W has more commands for us to complete.
1352 spin_lock_irqsave(&adapter
->lock
, flags
);
1355 /* Check if a valid interrupt is pending */
1356 dword
= RDOUTDOOR(adapter
);
1357 if(dword
!= 0x10001234) {
1359 * No more pending commands
1363 WROUTDOOR(adapter
, 0x10001234);
1365 while((nstatus
= (volatile u8
)adapter
->mbox
->m_in
.numstatus
)
1369 adapter
->mbox
->m_in
.numstatus
= 0xFF;
1371 status
= adapter
->mbox
->m_in
.status
;
1374 * decrement the pending queue counter
1376 atomic_sub(nstatus
, &adapter
->pend_cmds
);
1378 memcpy(completed
, (void *)adapter
->mbox
->m_in
.completed
,
1381 /* Acknowledge interrupt */
1382 WRINDOOR(adapter
, 0x2);
1386 while( RDINDOOR(adapter
) & 0x02 )
1389 mega_cmd_done(adapter
, completed
, nstatus
, status
);
1391 mega_rundoneq(adapter
);
1393 /* Loop through any pending requests */
1394 if(atomic_read(&adapter
->quiescent
) == 0) {
1395 mega_runpendq(adapter
);
1402 spin_unlock_irqrestore(&adapter
->lock
, flags
);
1404 return IRQ_RETVAL(handled
);
1408 * @adapter - pointer to our soft state
1409 * @completed - array of ids of completed commands
1410 * @nstatus - number of completed commands
1411 * @status - status of the last command completed
1413 * Complete the comamnds and call the scsi mid-layer callback hooks.
1416 mega_cmd_done(adapter_t
*adapter
, u8 completed
[], int nstatus
, int status
)
1418 mega_ext_passthru
*epthru
= NULL
;
1419 struct scatterlist
*sgl
;
1420 Scsi_Cmnd
*cmd
= NULL
;
1421 mega_passthru
*pthru
= NULL
;
1422 mbox_t
*mbox
= NULL
;
1430 * for all the commands completed, call the mid-layer callback routine
1433 for( i
= 0; i
< nstatus
; i
++ ) {
1435 cmdid
= completed
[i
];
1437 if( cmdid
== CMDID_INT_CMDS
) { /* internal command */
1438 scb
= &adapter
->int_scb
;
1440 mbox
= (mbox_t
*)scb
->raw_mbox
;
1443 * Internal command interface do not fire the extended
1444 * passthru or 64-bit passthru
1450 scb
= &adapter
->scb_list
[cmdid
];
1453 * Make sure f/w has completed a valid command
1455 if( !(scb
->state
& SCB_ISSUED
) || scb
->cmd
== NULL
) {
1457 "megaraid: invalid command ");
1458 printk("Id %d, scb->state:%x, scsi cmd:%p\n",
1459 cmdid
, scb
->state
, scb
->cmd
);
1465 * Was a abort issued for this command
1467 if( scb
->state
& SCB_ABORT
) {
1470 "megaraid: aborted cmd %lx[%x] complete.\n",
1471 scb
->cmd
->serial_number
, scb
->idx
);
1473 scb
->cmd
->result
= (DID_ABORT
<< 16);
1475 list_add_tail(SCSI_LIST(scb
->cmd
),
1476 &adapter
->completed_list
);
1478 mega_free_scb(adapter
, scb
);
1484 * Was a reset issued for this command
1486 if( scb
->state
& SCB_RESET
) {
1489 "megaraid: reset cmd %lx[%x] complete.\n",
1490 scb
->cmd
->serial_number
, scb
->idx
);
1492 scb
->cmd
->result
= (DID_RESET
<< 16);
1494 list_add_tail(SCSI_LIST(scb
->cmd
),
1495 &adapter
->completed_list
);
1497 mega_free_scb (adapter
, scb
);
1504 epthru
= scb
->epthru
;
1505 mbox
= (mbox_t
*)scb
->raw_mbox
;
1510 int logdrv
= mbox
->m_out
.logdrv
;
1512 islogical
= adapter
->logdrv_chan
[cmd
->channel
];
1514 * Maintain an error counter for the logical drive.
1515 * Some application like SNMP agent need such
1518 if( status
&& islogical
&& (cmd
->cmnd
[0] == READ_6
||
1519 cmd
->cmnd
[0] == READ_10
||
1520 cmd
->cmnd
[0] == READ_12
)) {
1522 * Logical drive number increases by 0x80 when
1523 * a logical drive is deleted
1525 adapter
->rd_errors
[logdrv
%0x80]++;
1528 if( status
&& islogical
&& (cmd
->cmnd
[0] == WRITE_6
||
1529 cmd
->cmnd
[0] == WRITE_10
||
1530 cmd
->cmnd
[0] == WRITE_12
)) {
1532 * Logical drive number increases by 0x80 when
1533 * a logical drive is deleted
1535 adapter
->wr_errors
[logdrv
%0x80]++;
1543 * Do not return the presence of hard disk on the channel so,
1544 * inquiry sent, and returned data==hard disk or removable
1545 * hard disk and not logical, request should return failure! -
1548 islogical
= adapter
->logdrv_chan
[cmd
->device
->channel
];
1549 if( cmd
->cmnd
[0] == INQUIRY
&& !islogical
) {
1551 sgl
= scsi_sglist(cmd
);
1552 if( sg_page(sgl
) ) {
1553 c
= *(unsigned char *) sg_virt(&sgl
[0]);
1556 "megaraid: invalid sg.\n");
1560 if(IS_RAID_CH(adapter
, cmd
->device
->channel
) &&
1561 ((c
& 0x1F ) == TYPE_DISK
)) {
1566 /* clear result; otherwise, success returns corrupt value */
1569 /* Convert MegaRAID status to Linux error code */
1571 case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */
1572 cmd
->result
|= (DID_OK
<< 16);
1575 case 0x02: /* ERROR_ABORTED, i.e.
1576 SCSI_STATUS_CHECK_CONDITION */
1578 /* set sense_buffer and result fields */
1579 if( mbox
->m_out
.cmd
== MEGA_MBOXCMD_PASSTHRU
||
1580 mbox
->m_out
.cmd
== MEGA_MBOXCMD_PASSTHRU64
) {
1582 memcpy(cmd
->sense_buffer
, pthru
->reqsensearea
,
1585 cmd
->result
= (DRIVER_SENSE
<< 24) |
1587 (CHECK_CONDITION
<< 1);
1590 if (mbox
->m_out
.cmd
== MEGA_MBOXCMD_EXTPTHRU
) {
1592 memcpy(cmd
->sense_buffer
,
1593 epthru
->reqsensearea
, 14);
1595 cmd
->result
= (DRIVER_SENSE
<< 24) |
1597 (CHECK_CONDITION
<< 1);
1599 cmd
->sense_buffer
[0] = 0x70;
1600 cmd
->sense_buffer
[2] = ABORTED_COMMAND
;
1601 cmd
->result
|= (CHECK_CONDITION
<< 1);
1606 case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e.
1608 cmd
->result
|= (DID_BUS_BUSY
<< 16) | status
;
1612 #if MEGA_HAVE_CLUSTERING
1614 * If TEST_UNIT_READY fails, we know
1615 * MEGA_RESERVATION_STATUS failed
1617 if( cmd
->cmnd
[0] == TEST_UNIT_READY
) {
1618 cmd
->result
|= (DID_ERROR
<< 16) |
1619 (RESERVATION_CONFLICT
<< 1);
1623 * Error code returned is 1 if Reserve or Release
1624 * failed or the input parameter is invalid
1627 (cmd
->cmnd
[0] == RESERVE
||
1628 cmd
->cmnd
[0] == RELEASE
) ) {
1630 cmd
->result
|= (DID_ERROR
<< 16) |
1631 (RESERVATION_CONFLICT
<< 1);
1635 cmd
->result
|= (DID_BAD_TARGET
<< 16)|status
;
1639 * Only free SCBs for the commands coming down from the
1640 * mid-layer, not for which were issued internally
1642 * For internal command, restore the status returned by the
1643 * firmware so that user can interpret it.
1645 if( cmdid
== CMDID_INT_CMDS
) { /* internal command */
1646 cmd
->result
= status
;
1649 * Remove the internal command from the pending list
1651 list_del_init(&scb
->list
);
1652 scb
->state
= SCB_FREE
;
1655 mega_free_scb(adapter
, scb
);
1658 /* Add Scsi_Command to end of completed queue */
1659 list_add_tail(SCSI_LIST(cmd
), &adapter
->completed_list
);
1667 * Run through the list of completed requests and finish it
1670 mega_rundoneq (adapter_t
*adapter
)
1673 struct list_head
*pos
;
1675 list_for_each(pos
, &adapter
->completed_list
) {
1677 struct scsi_pointer
* spos
= (struct scsi_pointer
*)pos
;
1679 cmd
= list_entry(spos
, Scsi_Cmnd
, SCp
);
1680 cmd
->scsi_done(cmd
);
1683 INIT_LIST_HEAD(&adapter
->completed_list
);
1688 * Free a SCB structure
1689 * Note: We assume the scsi commands associated with this scb is not free yet.
1692 mega_free_scb(adapter_t
*adapter
, scb_t
*scb
)
1694 switch( scb
->dma_type
) {
1696 case MEGA_DMA_TYPE_NONE
:
1700 scsi_dma_unmap(scb
->cmd
);
1707 * Remove from the pending list
1709 list_del_init(&scb
->list
);
1711 /* Link the scb back into free list */
1712 scb
->state
= SCB_FREE
;
1715 list_add(&scb
->list
, &adapter
->free_list
);
1720 __mega_busywait_mbox (adapter_t
*adapter
)
1722 volatile mbox_t
*mbox
= adapter
->mbox
;
1725 for (counter
= 0; counter
< 10000; counter
++) {
1726 if (!mbox
->m_in
.busy
)
1731 return -1; /* give up after 1 second */
1735 * Copies data to SGLIST
1736 * Note: For 64 bit cards, we need a minimum of one SG element for read/write
1739 mega_build_sglist(adapter_t
*adapter
, scb_t
*scb
, u32
*buf
, u32
*len
)
1741 struct scatterlist
*sg
;
1749 * Copy Scatter-Gather list info into controller structure.
1751 * The number of sg elements returned must not exceed our limit
1753 sgcnt
= scsi_dma_map(cmd
);
1755 scb
->dma_type
= MEGA_SGLIST
;
1757 BUG_ON(sgcnt
> adapter
->sglen
|| sgcnt
< 0);
1761 if (scsi_sg_count(cmd
) == 1 && !adapter
->has_64bit_addr
) {
1762 sg
= scsi_sglist(cmd
);
1763 scb
->dma_h_bulkdata
= sg_dma_address(sg
);
1764 *buf
= (u32
)scb
->dma_h_bulkdata
;
1765 *len
= sg_dma_len(sg
);
1769 scsi_for_each_sg(cmd
, sg
, sgcnt
, idx
) {
1770 if (adapter
->has_64bit_addr
) {
1771 scb
->sgl64
[idx
].address
= sg_dma_address(sg
);
1772 *len
+= scb
->sgl64
[idx
].length
= sg_dma_len(sg
);
1774 scb
->sgl
[idx
].address
= sg_dma_address(sg
);
1775 *len
+= scb
->sgl
[idx
].length
= sg_dma_len(sg
);
1779 /* Reset pointer and length fields */
1780 *buf
= scb
->sgl_dma_addr
;
1782 /* Return count of SG requests */
1790 * takes all info in AdapterInquiry structure and puts it into ProductInfo and
1791 * Enquiry3 structures for later use
1794 mega_8_to_40ld(mraid_inquiry
*inquiry
, mega_inquiry3
*enquiry3
,
1795 mega_product_info
*product_info
)
1799 product_info
->max_commands
= inquiry
->adapter_info
.max_commands
;
1800 enquiry3
->rebuild_rate
= inquiry
->adapter_info
.rebuild_rate
;
1801 product_info
->nchannels
= inquiry
->adapter_info
.nchannels
;
1803 for (i
= 0; i
< 4; i
++) {
1804 product_info
->fw_version
[i
] =
1805 inquiry
->adapter_info
.fw_version
[i
];
1807 product_info
->bios_version
[i
] =
1808 inquiry
->adapter_info
.bios_version
[i
];
1810 enquiry3
->cache_flush_interval
=
1811 inquiry
->adapter_info
.cache_flush_interval
;
1813 product_info
->dram_size
= inquiry
->adapter_info
.dram_size
;
1815 enquiry3
->num_ldrv
= inquiry
->logdrv_info
.num_ldrv
;
1817 for (i
= 0; i
< MAX_LOGICAL_DRIVES_8LD
; i
++) {
1818 enquiry3
->ldrv_size
[i
] = inquiry
->logdrv_info
.ldrv_size
[i
];
1819 enquiry3
->ldrv_prop
[i
] = inquiry
->logdrv_info
.ldrv_prop
[i
];
1820 enquiry3
->ldrv_state
[i
] = inquiry
->logdrv_info
.ldrv_state
[i
];
1823 for (i
= 0; i
< (MAX_PHYSICAL_DRIVES
); i
++)
1824 enquiry3
->pdrv_state
[i
] = inquiry
->pdrv_info
.pdrv_state
[i
];
1828 mega_free_sgl(adapter_t
*adapter
)
1833 for(i
= 0; i
< adapter
->max_cmds
; i
++) {
1835 scb
= &adapter
->scb_list
[i
];
1838 pci_free_consistent(adapter
->dev
,
1839 sizeof(mega_sgl64
) * adapter
->sglen
,
1847 pci_free_consistent(adapter
->dev
, sizeof(mega_passthru
),
1848 scb
->pthru
, scb
->pthru_dma_addr
);
1854 pci_free_consistent(adapter
->dev
,
1855 sizeof(mega_ext_passthru
),
1856 scb
->epthru
, scb
->epthru_dma_addr
);
1866 * Get information about the card/driver
1869 megaraid_info(struct Scsi_Host
*host
)
1871 static char buffer
[512];
1874 adapter
= (adapter_t
*)host
->hostdata
;
1877 "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns",
1878 adapter
->fw_version
, adapter
->product_info
.max_commands
,
1879 adapter
->host
->max_id
, adapter
->host
->max_channel
,
1880 adapter
->host
->max_lun
);
1885 * Abort a previous SCSI request. Only commands on the pending list can be
1886 * aborted. All the commands issued to the F/W must complete.
1889 megaraid_abort(Scsi_Cmnd
*cmd
)
1894 adapter
= (adapter_t
*)cmd
->device
->host
->hostdata
;
1896 rval
= megaraid_abort_and_reset(adapter
, cmd
, SCB_ABORT
);
1899 * This is required here to complete any completed requests
1900 * to be communicated over to the mid layer.
1902 mega_rundoneq(adapter
);
1909 megaraid_reset(struct scsi_cmnd
*cmd
)
1915 adapter
= (adapter_t
*)cmd
->device
->host
->hostdata
;
1917 #if MEGA_HAVE_CLUSTERING
1918 mc
.cmd
= MEGA_CLUSTER_CMD
;
1919 mc
.opcode
= MEGA_RESET_RESERVATIONS
;
1921 if( mega_internal_command(adapter
, &mc
, NULL
) != 0 ) {
1923 "megaraid: reservation reset failed.\n");
1926 printk(KERN_INFO
"megaraid: reservation reset.\n");
1930 spin_lock_irq(&adapter
->lock
);
1932 rval
= megaraid_abort_and_reset(adapter
, cmd
, SCB_RESET
);
1935 * This is required here to complete any completed requests
1936 * to be communicated over to the mid layer.
1938 mega_rundoneq(adapter
);
1939 spin_unlock_irq(&adapter
->lock
);
1945 * megaraid_abort_and_reset()
1946 * @adapter - megaraid soft state
1947 * @cmd - scsi command to be aborted or reset
1948 * @aor - abort or reset flag
1950 * Try to locate the scsi command in the pending queue. If found and is not
1951 * issued to the controller, abort/reset it. Otherwise return failure
1954 megaraid_abort_and_reset(adapter_t
*adapter
, Scsi_Cmnd
*cmd
, int aor
)
1956 struct list_head
*pos
, *next
;
1959 printk(KERN_WARNING
"megaraid: %s-%lx cmd=%x <c=%d t=%d l=%d>\n",
1960 (aor
== SCB_ABORT
)? "ABORTING":"RESET", cmd
->serial_number
,
1961 cmd
->cmnd
[0], cmd
->device
->channel
,
1962 cmd
->device
->id
, cmd
->device
->lun
);
1964 if(list_empty(&adapter
->pending_list
))
1967 list_for_each_safe(pos
, next
, &adapter
->pending_list
) {
1969 scb
= list_entry(pos
, scb_t
, list
);
1971 if (scb
->cmd
== cmd
) { /* Found command */
1976 * Check if this command has firmware ownership. If
1977 * yes, we cannot reset this command. Whenever f/w
1978 * completes this command, we will return appropriate
1981 if( scb
->state
& SCB_ISSUED
) {
1984 "megaraid: %s-%lx[%x], fw owner.\n",
1985 (aor
==SCB_ABORT
) ? "ABORTING":"RESET",
1986 cmd
->serial_number
, scb
->idx
);
1993 * Not yet issued! Remove from the pending
1997 "megaraid: %s-%lx[%x], driver owner.\n",
1998 (aor
==SCB_ABORT
) ? "ABORTING":"RESET",
1999 cmd
->serial_number
, scb
->idx
);
2001 mega_free_scb(adapter
, scb
);
2003 if( aor
== SCB_ABORT
) {
2004 cmd
->result
= (DID_ABORT
<< 16);
2007 cmd
->result
= (DID_RESET
<< 16);
2010 list_add_tail(SCSI_LIST(cmd
),
2011 &adapter
->completed_list
);
2022 make_local_pdev(adapter_t
*adapter
, struct pci_dev
**pdev
)
2024 *pdev
= alloc_pci_dev();
2026 if( *pdev
== NULL
) return -1;
2028 memcpy(*pdev
, adapter
->dev
, sizeof(struct pci_dev
));
2030 if( pci_set_dma_mask(*pdev
, DMA_BIT_MASK(32)) != 0 ) {
2039 free_local_pdev(struct pci_dev
*pdev
)
2045 * mega_allocate_inquiry()
2046 * @dma_handle - handle returned for dma address
2047 * @pdev - handle to pci device
2049 * allocates memory for inquiry structure
2051 static inline void *
2052 mega_allocate_inquiry(dma_addr_t
*dma_handle
, struct pci_dev
*pdev
)
2054 return pci_alloc_consistent(pdev
, sizeof(mega_inquiry3
), dma_handle
);
2059 mega_free_inquiry(void *inquiry
, dma_addr_t dma_handle
, struct pci_dev
*pdev
)
2061 pci_free_consistent(pdev
, sizeof(mega_inquiry3
), inquiry
, dma_handle
);
2065 #ifdef CONFIG_PROC_FS
2066 /* Following code handles /proc fs */
2068 #define CREATE_READ_PROC(string, func) create_proc_read_entry(string, \
2069 S_IRUSR | S_IFREG, \
2070 controller_proc_dir_entry, \
2074 * mega_create_proc_entry()
2075 * @index - index in soft state array
2076 * @parent - parent node for this /proc entry
2078 * Creates /proc entries for our controllers.
2081 mega_create_proc_entry(int index
, struct proc_dir_entry
*parent
)
2083 struct proc_dir_entry
*controller_proc_dir_entry
= NULL
;
2084 u8 string
[64] = { 0 };
2085 adapter_t
*adapter
= hba_soft_state
[index
];
2087 sprintf(string
, "hba%d", adapter
->host
->host_no
);
2089 controller_proc_dir_entry
=
2090 adapter
->controller_proc_dir_entry
= proc_mkdir(string
, parent
);
2092 if(!controller_proc_dir_entry
) {
2093 printk(KERN_WARNING
"\nmegaraid: proc_mkdir failed\n");
2096 adapter
->proc_read
= CREATE_READ_PROC("config", proc_read_config
);
2097 adapter
->proc_stat
= CREATE_READ_PROC("stat", proc_read_stat
);
2098 adapter
->proc_mbox
= CREATE_READ_PROC("mailbox", proc_read_mbox
);
2099 #if MEGA_HAVE_ENH_PROC
2100 adapter
->proc_rr
= CREATE_READ_PROC("rebuild-rate", proc_rebuild_rate
);
2101 adapter
->proc_battery
= CREATE_READ_PROC("battery-status",
2105 * Display each physical drive on its channel
2107 adapter
->proc_pdrvstat
[0] = CREATE_READ_PROC("diskdrives-ch0",
2109 adapter
->proc_pdrvstat
[1] = CREATE_READ_PROC("diskdrives-ch1",
2111 adapter
->proc_pdrvstat
[2] = CREATE_READ_PROC("diskdrives-ch2",
2113 adapter
->proc_pdrvstat
[3] = CREATE_READ_PROC("diskdrives-ch3",
2117 * Display a set of up to 10 logical drive through each of following
2120 adapter
->proc_rdrvstat
[0] = CREATE_READ_PROC("raiddrives-0-9",
2122 adapter
->proc_rdrvstat
[1] = CREATE_READ_PROC("raiddrives-10-19",
2124 adapter
->proc_rdrvstat
[2] = CREATE_READ_PROC("raiddrives-20-29",
2126 adapter
->proc_rdrvstat
[3] = CREATE_READ_PROC("raiddrives-30-39",
2133 * proc_read_config()
2134 * @page - buffer to write the data in
2135 * @start - where the actual data has been written in page
2136 * @offset - same meaning as the read system call
2137 * @count - same meaning as the read system call
2138 * @eof - set if no more data needs to be returned
2139 * @data - pointer to our soft state
2141 * Display configuration information about the controller.
2144 proc_read_config(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2148 adapter_t
*adapter
= (adapter_t
*)data
;
2151 len
+= sprintf(page
+len
, "%s", MEGARAID_VERSION
);
2153 if(adapter
->product_info
.product_name
[0])
2154 len
+= sprintf(page
+len
, "%s\n",
2155 adapter
->product_info
.product_name
);
2157 len
+= sprintf(page
+len
, "Controller Type: ");
2159 if( adapter
->flag
& BOARD_MEMMAP
) {
2160 len
+= sprintf(page
+len
,
2161 "438/466/467/471/493/518/520/531/532\n");
2164 len
+= sprintf(page
+len
,
2168 if(adapter
->flag
& BOARD_40LD
) {
2169 len
+= sprintf(page
+len
,
2170 "Controller Supports 40 Logical Drives\n");
2173 if(adapter
->flag
& BOARD_64BIT
) {
2174 len
+= sprintf(page
+len
,
2175 "Controller capable of 64-bit memory addressing\n");
2177 if( adapter
->has_64bit_addr
) {
2178 len
+= sprintf(page
+len
,
2179 "Controller using 64-bit memory addressing\n");
2182 len
+= sprintf(page
+len
,
2183 "Controller is not using 64-bit memory addressing\n");
2186 len
+= sprintf(page
+len
, "Base = %08lx, Irq = %d, ", adapter
->base
,
2187 adapter
->host
->irq
);
2189 len
+= sprintf(page
+len
, "Logical Drives = %d, Channels = %d\n",
2190 adapter
->numldrv
, adapter
->product_info
.nchannels
);
2192 len
+= sprintf(page
+len
, "Version =%s:%s, DRAM = %dMb\n",
2193 adapter
->fw_version
, adapter
->bios_version
,
2194 adapter
->product_info
.dram_size
);
2196 len
+= sprintf(page
+len
,
2197 "Controller Queue Depth = %d, Driver Queue Depth = %d\n",
2198 adapter
->product_info
.max_commands
, adapter
->max_cmds
);
2200 len
+= sprintf(page
+len
, "support_ext_cdb = %d\n",
2201 adapter
->support_ext_cdb
);
2202 len
+= sprintf(page
+len
, "support_random_del = %d\n",
2203 adapter
->support_random_del
);
2204 len
+= sprintf(page
+len
, "boot_ldrv_enabled = %d\n",
2205 adapter
->boot_ldrv_enabled
);
2206 len
+= sprintf(page
+len
, "boot_ldrv = %d\n",
2207 adapter
->boot_ldrv
);
2208 len
+= sprintf(page
+len
, "boot_pdrv_enabled = %d\n",
2209 adapter
->boot_pdrv_enabled
);
2210 len
+= sprintf(page
+len
, "boot_pdrv_ch = %d\n",
2211 adapter
->boot_pdrv_ch
);
2212 len
+= sprintf(page
+len
, "boot_pdrv_tgt = %d\n",
2213 adapter
->boot_pdrv_tgt
);
2214 len
+= sprintf(page
+len
, "quiescent = %d\n",
2215 atomic_read(&adapter
->quiescent
));
2216 len
+= sprintf(page
+len
, "has_cluster = %d\n",
2217 adapter
->has_cluster
);
2219 len
+= sprintf(page
+len
, "\nModule Parameters:\n");
2220 len
+= sprintf(page
+len
, "max_cmd_per_lun = %d\n",
2222 len
+= sprintf(page
+len
, "max_sectors_per_io = %d\n",
2223 max_sectors_per_io
);
2234 * @page - buffer to write the data in
2235 * @start - where the actual data has been written in page
2236 * @offset - same meaning as the read system call
2237 * @count - same meaning as the read system call
2238 * @eof - set if no more data needs to be returned
2239 * @data - pointer to our soft state
2241 * Diaplay statistical information about the I/O activity.
2244 proc_read_stat(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2251 i
= 0; /* avoid compilation warnings */
2253 adapter
= (adapter_t
*)data
;
2255 len
= sprintf(page
, "Statistical Information for this controller\n");
2256 len
+= sprintf(page
+len
, "pend_cmds = %d\n",
2257 atomic_read(&adapter
->pend_cmds
));
2259 for(i
= 0; i
< adapter
->numldrv
; i
++) {
2260 len
+= sprintf(page
+len
, "Logical Drive %d:\n", i
);
2262 len
+= sprintf(page
+len
,
2263 "\tReads Issued = %lu, Writes Issued = %lu\n",
2264 adapter
->nreads
[i
], adapter
->nwrites
[i
]);
2266 len
+= sprintf(page
+len
,
2267 "\tSectors Read = %lu, Sectors Written = %lu\n",
2268 adapter
->nreadblocks
[i
], adapter
->nwriteblocks
[i
]);
2270 len
+= sprintf(page
+len
,
2271 "\tRead errors = %lu, Write errors = %lu\n\n",
2272 adapter
->rd_errors
[i
], adapter
->wr_errors
[i
]);
2275 len
+= sprintf(page
+len
,
2276 "IO and error counters not compiled in driver.\n");
2287 * @page - buffer to write the data in
2288 * @start - where the actual data has been written in page
2289 * @offset - same meaning as the read system call
2290 * @count - same meaning as the read system call
2291 * @eof - set if no more data needs to be returned
2292 * @data - pointer to our soft state
2294 * Display mailbox information for the last command issued. This information
2295 * is good for debugging.
2298 proc_read_mbox(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2302 adapter_t
*adapter
= (adapter_t
*)data
;
2303 volatile mbox_t
*mbox
= adapter
->mbox
;
2306 len
= sprintf(page
, "Contents of Mail Box Structure\n");
2307 len
+= sprintf(page
+len
, " Fw Command = 0x%02x\n",
2309 len
+= sprintf(page
+len
, " Cmd Sequence = 0x%02x\n",
2311 len
+= sprintf(page
+len
, " No of Sectors= %04d\n",
2312 mbox
->m_out
.numsectors
);
2313 len
+= sprintf(page
+len
, " LBA = 0x%02x\n",
2315 len
+= sprintf(page
+len
, " DTA = 0x%08x\n",
2316 mbox
->m_out
.xferaddr
);
2317 len
+= sprintf(page
+len
, " Logical Drive= 0x%02x\n",
2318 mbox
->m_out
.logdrv
);
2319 len
+= sprintf(page
+len
, " No of SG Elmt= 0x%02x\n",
2320 mbox
->m_out
.numsgelements
);
2321 len
+= sprintf(page
+len
, " Busy = %01x\n",
2323 len
+= sprintf(page
+len
, " Status = 0x%02x\n",
2333 * proc_rebuild_rate()
2334 * @page - buffer to write the data in
2335 * @start - where the actual data has been written in page
2336 * @offset - same meaning as the read system call
2337 * @count - same meaning as the read system call
2338 * @eof - set if no more data needs to be returned
2339 * @data - pointer to our soft state
2341 * Display current rebuild rate
2344 proc_rebuild_rate(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2347 adapter_t
*adapter
= (adapter_t
*)data
;
2348 dma_addr_t dma_handle
;
2350 struct pci_dev
*pdev
;
2353 if( make_local_pdev(adapter
, &pdev
) != 0 ) {
2358 if( (inquiry
= mega_allocate_inquiry(&dma_handle
, pdev
)) == NULL
) {
2359 free_local_pdev(pdev
);
2364 if( mega_adapinq(adapter
, dma_handle
) != 0 ) {
2366 len
= sprintf(page
, "Adapter inquiry failed.\n");
2368 printk(KERN_WARNING
"megaraid: inquiry failed.\n");
2370 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2372 free_local_pdev(pdev
);
2379 if( adapter
->flag
& BOARD_40LD
) {
2380 len
= sprintf(page
, "Rebuild Rate: [%d%%]\n",
2381 ((mega_inquiry3
*)inquiry
)->rebuild_rate
);
2384 len
= sprintf(page
, "Rebuild Rate: [%d%%]\n",
2385 ((mraid_ext_inquiry
*)
2386 inquiry
)->raid_inq
.adapter_info
.rebuild_rate
);
2390 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2392 free_local_pdev(pdev
);
2402 * @page - buffer to write the data in
2403 * @start - where the actual data has been written in page
2404 * @offset - same meaning as the read system call
2405 * @count - same meaning as the read system call
2406 * @eof - set if no more data needs to be returned
2407 * @data - pointer to our soft state
2409 * Display information about the battery module on the controller.
2412 proc_battery(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2415 adapter_t
*adapter
= (adapter_t
*)data
;
2416 dma_addr_t dma_handle
;
2418 struct pci_dev
*pdev
;
2419 u8 battery_status
= 0;
2423 if( make_local_pdev(adapter
, &pdev
) != 0 ) {
2428 if( (inquiry
= mega_allocate_inquiry(&dma_handle
, pdev
)) == NULL
) {
2429 free_local_pdev(pdev
);
2434 if( mega_adapinq(adapter
, dma_handle
) != 0 ) {
2436 len
= sprintf(page
, "Adapter inquiry failed.\n");
2438 printk(KERN_WARNING
"megaraid: inquiry failed.\n");
2440 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2442 free_local_pdev(pdev
);
2449 if( adapter
->flag
& BOARD_40LD
) {
2450 battery_status
= ((mega_inquiry3
*)inquiry
)->battery_status
;
2453 battery_status
= ((mraid_ext_inquiry
*)inquiry
)->
2454 raid_inq
.adapter_info
.battery_status
;
2458 * Decode the battery status
2460 sprintf(str
, "Battery Status:[%d]", battery_status
);
2462 if(battery_status
== MEGA_BATT_CHARGE_DONE
)
2463 strcat(str
, " Charge Done");
2465 if(battery_status
& MEGA_BATT_MODULE_MISSING
)
2466 strcat(str
, " Module Missing");
2468 if(battery_status
& MEGA_BATT_LOW_VOLTAGE
)
2469 strcat(str
, " Low Voltage");
2471 if(battery_status
& MEGA_BATT_TEMP_HIGH
)
2472 strcat(str
, " Temperature High");
2474 if(battery_status
& MEGA_BATT_PACK_MISSING
)
2475 strcat(str
, " Pack Missing");
2477 if(battery_status
& MEGA_BATT_CHARGE_INPROG
)
2478 strcat(str
, " Charge In-progress");
2480 if(battery_status
& MEGA_BATT_CHARGE_FAIL
)
2481 strcat(str
, " Charge Fail");
2483 if(battery_status
& MEGA_BATT_CYCLES_EXCEEDED
)
2484 strcat(str
, " Cycles Exceeded");
2486 len
= sprintf(page
, "%s\n", str
);
2489 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2491 free_local_pdev(pdev
);
2501 * @page - buffer to write the data in
2502 * @start - where the actual data has been written in page
2503 * @offset - same meaning as the read system call
2504 * @count - same meaning as the read system call
2505 * @eof - set if no more data needs to be returned
2506 * @data - pointer to our soft state
2508 * Display information about the physical drives on physical channel 0.
2511 proc_pdrv_ch0(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2514 adapter_t
*adapter
= (adapter_t
*)data
;
2518 return (proc_pdrv(adapter
, page
, 0));
2524 * @page - buffer to write the data in
2525 * @start - where the actual data has been written in page
2526 * @offset - same meaning as the read system call
2527 * @count - same meaning as the read system call
2528 * @eof - set if no more data needs to be returned
2529 * @data - pointer to our soft state
2531 * Display information about the physical drives on physical channel 1.
2534 proc_pdrv_ch1(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2537 adapter_t
*adapter
= (adapter_t
*)data
;
2541 return (proc_pdrv(adapter
, page
, 1));
2547 * @page - buffer to write the data in
2548 * @start - where the actual data has been written in page
2549 * @offset - same meaning as the read system call
2550 * @count - same meaning as the read system call
2551 * @eof - set if no more data needs to be returned
2552 * @data - pointer to our soft state
2554 * Display information about the physical drives on physical channel 2.
2557 proc_pdrv_ch2(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2560 adapter_t
*adapter
= (adapter_t
*)data
;
2564 return (proc_pdrv(adapter
, page
, 2));
2570 * @page - buffer to write the data in
2571 * @start - where the actual data has been written in page
2572 * @offset - same meaning as the read system call
2573 * @count - same meaning as the read system call
2574 * @eof - set if no more data needs to be returned
2575 * @data - pointer to our soft state
2577 * Display information about the physical drives on physical channel 3.
2580 proc_pdrv_ch3(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2583 adapter_t
*adapter
= (adapter_t
*)data
;
2587 return (proc_pdrv(adapter
, page
, 3));
2593 * @page - buffer to write the data in
2594 * @adapter - pointer to our soft state
2596 * Display information about the physical drives.
2599 proc_pdrv(adapter_t
*adapter
, char *page
, int channel
)
2601 dma_addr_t dma_handle
;
2603 dma_addr_t scsi_inq_dma_handle
;
2605 struct pci_dev
*pdev
;
2614 if( make_local_pdev(adapter
, &pdev
) != 0 ) {
2618 if( (inquiry
= mega_allocate_inquiry(&dma_handle
, pdev
)) == NULL
) {
2622 if( mega_adapinq(adapter
, dma_handle
) != 0 ) {
2623 len
= sprintf(page
, "Adapter inquiry failed.\n");
2625 printk(KERN_WARNING
"megaraid: inquiry failed.\n");
2631 scsi_inq
= pci_alloc_consistent(pdev
, 256, &scsi_inq_dma_handle
);
2633 if( scsi_inq
== NULL
) {
2634 len
= sprintf(page
, "memory not available for scsi inq.\n");
2639 if( adapter
->flag
& BOARD_40LD
) {
2640 pdrv_state
= ((mega_inquiry3
*)inquiry
)->pdrv_state
;
2643 pdrv_state
= ((mraid_ext_inquiry
*)inquiry
)->
2644 raid_inq
.pdrv_info
.pdrv_state
;
2647 max_channels
= adapter
->product_info
.nchannels
;
2649 if( channel
>= max_channels
) {
2653 for( tgt
= 0; tgt
<= MAX_TARGET
; tgt
++ ) {
2655 i
= channel
*16 + tgt
;
2657 state
= *(pdrv_state
+ i
);
2659 switch( state
& 0x0F ) {
2663 "Channel:%2d Id:%2d State: Online",
2669 "Channel:%2d Id:%2d State: Failed",
2675 "Channel:%2d Id:%2d State: Rebuild",
2681 "Channel:%2d Id:%2d State: Hot spare",
2687 "Channel:%2d Id:%2d State: Un-configured",
2694 * This interface displays inquiries for disk drives
2695 * only. Inquries for logical drives and non-disk
2696 * devices are available through /proc/scsi/scsi
2698 memset(scsi_inq
, 0, 256);
2699 if( mega_internal_dev_inquiry(adapter
, channel
, tgt
,
2700 scsi_inq_dma_handle
) ||
2701 (scsi_inq
[0] & 0x1F) != TYPE_DISK
) {
2706 * Check for overflow. We print less than 240
2707 * characters for inquiry
2709 if( (len
+ 240) >= PAGE_SIZE
) break;
2711 len
+= sprintf(page
+len
, "%s.\n", str
);
2713 len
+= mega_print_inquiry(page
+len
, scsi_inq
);
2717 pci_free_consistent(pdev
, 256, scsi_inq
, scsi_inq_dma_handle
);
2719 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2721 free_local_pdev(pdev
);
2728 * Display scsi inquiry
2731 mega_print_inquiry(char *page
, char *scsi_inq
)
2736 len
= sprintf(page
, " Vendor: ");
2737 for( i
= 8; i
< 16; i
++ ) {
2738 len
+= sprintf(page
+len
, "%c", scsi_inq
[i
]);
2741 len
+= sprintf(page
+len
, " Model: ");
2743 for( i
= 16; i
< 32; i
++ ) {
2744 len
+= sprintf(page
+len
, "%c", scsi_inq
[i
]);
2747 len
+= sprintf(page
+len
, " Rev: ");
2749 for( i
= 32; i
< 36; i
++ ) {
2750 len
+= sprintf(page
+len
, "%c", scsi_inq
[i
]);
2753 len
+= sprintf(page
+len
, "\n");
2755 i
= scsi_inq
[0] & 0x1f;
2757 len
+= sprintf(page
+len
, " Type: %s ", scsi_device_type(i
));
2759 len
+= sprintf(page
+len
,
2760 " ANSI SCSI revision: %02x", scsi_inq
[2] & 0x07);
2762 if( (scsi_inq
[2] & 0x07) == 1 && (scsi_inq
[3] & 0x0f) == 1 )
2763 len
+= sprintf(page
+len
, " CCS\n");
2765 len
+= sprintf(page
+len
, "\n");
2773 * @page - buffer to write the data in
2774 * @start - where the actual data has been written in page
2775 * @offset - same meaning as the read system call
2776 * @count - same meaning as the read system call
2777 * @eof - set if no more data needs to be returned
2778 * @data - pointer to our soft state
2780 * Display real time information about the logical drives 0 through 9.
2783 proc_rdrv_10(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2786 adapter_t
*adapter
= (adapter_t
*)data
;
2790 return (proc_rdrv(adapter
, page
, 0, 9));
2796 * @page - buffer to write the data in
2797 * @start - where the actual data has been written in page
2798 * @offset - same meaning as the read system call
2799 * @count - same meaning as the read system call
2800 * @eof - set if no more data needs to be returned
2801 * @data - pointer to our soft state
2803 * Display real time information about the logical drives 0 through 9.
2806 proc_rdrv_20(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2809 adapter_t
*adapter
= (adapter_t
*)data
;
2813 return (proc_rdrv(adapter
, page
, 10, 19));
2819 * @page - buffer to write the data in
2820 * @start - where the actual data has been written in page
2821 * @offset - same meaning as the read system call
2822 * @count - same meaning as the read system call
2823 * @eof - set if no more data needs to be returned
2824 * @data - pointer to our soft state
2826 * Display real time information about the logical drives 0 through 9.
2829 proc_rdrv_30(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2832 adapter_t
*adapter
= (adapter_t
*)data
;
2836 return (proc_rdrv(adapter
, page
, 20, 29));
2842 * @page - buffer to write the data in
2843 * @start - where the actual data has been written in page
2844 * @offset - same meaning as the read system call
2845 * @count - same meaning as the read system call
2846 * @eof - set if no more data needs to be returned
2847 * @data - pointer to our soft state
2849 * Display real time information about the logical drives 0 through 9.
2852 proc_rdrv_40(char *page
, char **start
, off_t offset
, int count
, int *eof
,
2855 adapter_t
*adapter
= (adapter_t
*)data
;
2859 return (proc_rdrv(adapter
, page
, 30, 39));
2865 * @page - buffer to write the data in
2866 * @adapter - pointer to our soft state
2867 * @start - starting logical drive to display
2868 * @end - ending logical drive to display
2870 * We do not print the inquiry information since its already available through
2871 * /proc/scsi/scsi interface
2874 proc_rdrv(adapter_t
*adapter
, char *page
, int start
, int end
)
2876 dma_addr_t dma_handle
;
2877 logdrv_param
*lparam
;
2880 dma_addr_t disk_array_dma_handle
;
2882 struct pci_dev
*pdev
;
2889 if( make_local_pdev(adapter
, &pdev
) != 0 ) {
2893 if( (inquiry
= mega_allocate_inquiry(&dma_handle
, pdev
)) == NULL
) {
2894 free_local_pdev(pdev
);
2898 if( mega_adapinq(adapter
, dma_handle
) != 0 ) {
2900 len
= sprintf(page
, "Adapter inquiry failed.\n");
2902 printk(KERN_WARNING
"megaraid: inquiry failed.\n");
2904 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2906 free_local_pdev(pdev
);
2911 memset(&mc
, 0, sizeof(megacmd_t
));
2913 if( adapter
->flag
& BOARD_40LD
) {
2914 array_sz
= sizeof(disk_array_40ld
);
2916 rdrv_state
= ((mega_inquiry3
*)inquiry
)->ldrv_state
;
2918 num_ldrv
= ((mega_inquiry3
*)inquiry
)->num_ldrv
;
2921 array_sz
= sizeof(disk_array_8ld
);
2923 rdrv_state
= ((mraid_ext_inquiry
*)inquiry
)->
2924 raid_inq
.logdrv_info
.ldrv_state
;
2926 num_ldrv
= ((mraid_ext_inquiry
*)inquiry
)->
2927 raid_inq
.logdrv_info
.num_ldrv
;
2930 disk_array
= pci_alloc_consistent(pdev
, array_sz
,
2931 &disk_array_dma_handle
);
2933 if( disk_array
== NULL
) {
2934 len
= sprintf(page
, "memory not available.\n");
2936 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2938 free_local_pdev(pdev
);
2943 mc
.xferaddr
= (u32
)disk_array_dma_handle
;
2945 if( adapter
->flag
& BOARD_40LD
) {
2946 mc
.cmd
= FC_NEW_CONFIG
;
2947 mc
.opcode
= OP_DCMD_READ_CONFIG
;
2949 if( mega_internal_command(adapter
, &mc
, NULL
) ) {
2951 len
= sprintf(page
, "40LD read config failed.\n");
2953 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2955 pci_free_consistent(pdev
, array_sz
, disk_array
,
2956 disk_array_dma_handle
);
2958 free_local_pdev(pdev
);
2965 mc
.cmd
= NEW_READ_CONFIG_8LD
;
2967 if( mega_internal_command(adapter
, &mc
, NULL
) ) {
2969 mc
.cmd
= READ_CONFIG_8LD
;
2971 if( mega_internal_command(adapter
, &mc
,
2975 "8LD read config failed.\n");
2977 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2979 pci_free_consistent(pdev
, array_sz
,
2981 disk_array_dma_handle
);
2983 free_local_pdev(pdev
);
2990 for( i
= start
; i
< ( (end
+1 < num_ldrv
) ? end
+1 : num_ldrv
); i
++ ) {
2992 if( adapter
->flag
& BOARD_40LD
) {
2994 &((disk_array_40ld
*)disk_array
)->ldrv
[i
].lparam
;
2998 &((disk_array_8ld
*)disk_array
)->ldrv
[i
].lparam
;
3002 * Check for overflow. We print less than 240 characters for
3003 * information about each logical drive.
3005 if( (len
+ 240) >= PAGE_SIZE
) break;
3007 len
+= sprintf(page
+len
, "Logical drive:%2d:, ", i
);
3009 switch( rdrv_state
[i
] & 0x0F ) {
3011 len
+= sprintf(page
+len
, "state: offline");
3015 len
+= sprintf(page
+len
, "state: degraded");
3019 len
+= sprintf(page
+len
, "state: optimal");
3023 len
+= sprintf(page
+len
, "state: deleted");
3027 len
+= sprintf(page
+len
, "state: unknown");
3032 * Check if check consistency or initialization is going on
3033 * for this logical drive.
3035 if( (rdrv_state
[i
] & 0xF0) == 0x20 ) {
3036 len
+= sprintf(page
+len
,
3037 ", check-consistency in progress");
3039 else if( (rdrv_state
[i
] & 0xF0) == 0x10 ) {
3040 len
+= sprintf(page
+len
,
3041 ", initialization in progress");
3044 len
+= sprintf(page
+len
, "\n");
3046 len
+= sprintf(page
+len
, "Span depth:%3d, ",
3047 lparam
->span_depth
);
3049 len
+= sprintf(page
+len
, "RAID level:%3d, ",
3052 len
+= sprintf(page
+len
, "Stripe size:%3d, ",
3053 lparam
->stripe_sz
? lparam
->stripe_sz
/2: 128);
3055 len
+= sprintf(page
+len
, "Row size:%3d\n",
3059 len
+= sprintf(page
+len
, "Read Policy: ");
3061 switch(lparam
->read_ahead
) {
3064 len
+= sprintf(page
+len
, "No read ahead, ");
3068 len
+= sprintf(page
+len
, "Read ahead, ");
3071 case ADAP_READ_AHEAD
:
3072 len
+= sprintf(page
+len
, "Adaptive, ");
3077 len
+= sprintf(page
+len
, "Write Policy: ");
3079 switch(lparam
->write_mode
) {
3081 case WRMODE_WRITE_THRU
:
3082 len
+= sprintf(page
+len
, "Write thru, ");
3085 case WRMODE_WRITE_BACK
:
3086 len
+= sprintf(page
+len
, "Write back, ");
3090 len
+= sprintf(page
+len
, "Cache Policy: ");
3092 switch(lparam
->direct_io
) {
3095 len
+= sprintf(page
+len
, "Cached IO\n\n");
3099 len
+= sprintf(page
+len
, "Direct IO\n\n");
3104 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
3106 pci_free_consistent(pdev
, array_sz
, disk_array
,
3107 disk_array_dma_handle
);
3109 free_local_pdev(pdev
);
3114 static inline void mega_create_proc_entry(int index
, struct proc_dir_entry
*parent
)
3121 * megaraid_biosparam()
3123 * Return the disk geometry for a particular disk
3126 megaraid_biosparam(struct scsi_device
*sdev
, struct block_device
*bdev
,
3127 sector_t capacity
, int geom
[])
3136 /* Get pointer to host config structure */
3137 adapter
= (adapter_t
*)sdev
->host
->hostdata
;
3139 if (IS_RAID_CH(adapter
, sdev
->channel
)) {
3140 /* Default heads (64) & sectors (32) */
3143 cylinders
= (ulong
)capacity
/ (heads
* sectors
);
3146 * Handle extended translation size for logical drives
3149 if ((ulong
)capacity
>= 0x200000) {
3152 cylinders
= (ulong
)capacity
/ (heads
* sectors
);
3158 geom
[2] = cylinders
;
3161 bh
= scsi_bios_ptable(bdev
);
3164 rval
= scsi_partsize(bh
, capacity
,
3165 &geom
[2], &geom
[0], &geom
[1]);
3172 "megaraid: invalid partition on this disk on channel %d\n",
3175 /* Default heads (64) & sectors (32) */
3178 cylinders
= (ulong
)capacity
/ (heads
* sectors
);
3180 /* Handle extended translation size for logical drives > 1Gb */
3181 if ((ulong
)capacity
>= 0x200000) {
3184 cylinders
= (ulong
)capacity
/ (heads
* sectors
);
3190 geom
[2] = cylinders
;
3198 * @adapter - pointer to our soft state
3200 * Allocate memory for the various pointers in the scb structures:
3201 * scatter-gather list pointer, passthru and extended passthru structure
3205 mega_init_scb(adapter_t
*adapter
)
3210 for( i
= 0; i
< adapter
->max_cmds
; i
++ ) {
3212 scb
= &adapter
->scb_list
[i
];
3220 for( i
= 0; i
< adapter
->max_cmds
; i
++ ) {
3222 scb
= &adapter
->scb_list
[i
];
3226 scb
->sgl64
= pci_alloc_consistent(adapter
->dev
,
3227 sizeof(mega_sgl64
) * adapter
->sglen
,
3228 &scb
->sgl_dma_addr
);
3230 scb
->sgl
= (mega_sglist
*)scb
->sgl64
;
3233 printk(KERN_WARNING
"RAID: Can't allocate sglist.\n");
3234 mega_free_sgl(adapter
);
3238 scb
->pthru
= pci_alloc_consistent(adapter
->dev
,
3239 sizeof(mega_passthru
),
3240 &scb
->pthru_dma_addr
);
3243 printk(KERN_WARNING
"RAID: Can't allocate passthru.\n");
3244 mega_free_sgl(adapter
);
3248 scb
->epthru
= pci_alloc_consistent(adapter
->dev
,
3249 sizeof(mega_ext_passthru
),
3250 &scb
->epthru_dma_addr
);
3252 if( !scb
->epthru
) {
3254 "Can't allocate extended passthru.\n");
3255 mega_free_sgl(adapter
);
3260 scb
->dma_type
= MEGA_DMA_TYPE_NONE
;
3264 * lock not required since we are loading the driver, so no
3265 * commands possible right now.
3267 scb
->state
= SCB_FREE
;
3269 list_add(&scb
->list
, &adapter
->free_list
);
3281 * Routines for the character/ioctl interface to the driver. Find out if this
3285 megadev_open (struct inode
*inode
, struct file
*filep
)
3288 * Only allow superuser to access private ioctl interface
3290 if( !capable(CAP_SYS_ADMIN
) ) return -EACCES
;
3298 * @inode - Our device inode
3300 * @cmd - ioctl command
3301 * @arg - user buffer
3303 * ioctl entry point for our private ioctl interface. We move the data in from
3304 * the user space, prepare the command (if necessary, convert the old MIMD
3305 * ioctl to new ioctl command), and issue a synchronous command to the
3309 megadev_ioctl(struct file
*filep
, unsigned int cmd
, unsigned long arg
)
3315 mega_passthru __user
*upthru
; /* user address for passthru */
3316 mega_passthru
*pthru
; /* copy user passthru here */
3317 dma_addr_t pthru_dma_hndl
;
3318 void *data
= NULL
; /* data to be transferred */
3319 dma_addr_t data_dma_hndl
; /* dma handle for data xfer area */
3321 megastat_t __user
*ustats
;
3324 struct pci_dev
*pdev
;
3326 ustats
= NULL
; /* avoid compilation warnings */
3330 * Make sure only USCSICMD are issued through this interface.
3331 * MIMD application would still fire different command.
3333 if( (_IOC_TYPE(cmd
) != MEGAIOC_MAGIC
) && (cmd
!= USCSICMD
) ) {
3338 * Check and convert a possible MIMD command to NIT command.
3339 * mega_m_to_n() copies the data from the user space, so we do not
3340 * have to do it here.
3341 * NOTE: We will need some user address to copyout the data, therefore
3342 * the inteface layer will also provide us with the required user
3345 memset(&uioc
, 0, sizeof(nitioctl_t
));
3346 if( (rval
= mega_m_to_n( (void __user
*)arg
, &uioc
)) != 0 )
3350 switch( uioc
.opcode
) {
3352 case GET_DRIVER_VER
:
3353 if( put_user(driver_ver
, (u32 __user
*)uioc
.uioc_uaddr
) )
3359 if( put_user(hba_count
, (u32 __user
*)uioc
.uioc_uaddr
) )
3363 * Shucks. MIMD interface returns a positive value for number
3364 * of adapters. TODO: Change it to return 0 when there is no
3365 * applicatio using mimd interface.
3374 if( (adapno
= GETADAP(uioc
.adapno
)) >= hba_count
)
3377 if( copy_to_user(uioc
.uioc_uaddr
, mcontroller
+adapno
,
3378 sizeof(struct mcontroller
)) )
3388 if( (adapno
= GETADAP(uioc
.adapno
)) >= hba_count
)
3391 adapter
= hba_soft_state
[adapno
];
3393 ustats
= uioc
.uioc_uaddr
;
3395 if( copy_from_user(&num_ldrv
, &ustats
->num_ldrv
, sizeof(int)) )
3399 * Check for the validity of the logical drive number
3401 if( num_ldrv
>= MAX_LOGICAL_DRIVES_40LD
) return -EINVAL
;
3403 if( copy_to_user(ustats
->nreads
, adapter
->nreads
,
3404 num_ldrv
*sizeof(u32
)) )
3407 if( copy_to_user(ustats
->nreadblocks
, adapter
->nreadblocks
,
3408 num_ldrv
*sizeof(u32
)) )
3411 if( copy_to_user(ustats
->nwrites
, adapter
->nwrites
,
3412 num_ldrv
*sizeof(u32
)) )
3415 if( copy_to_user(ustats
->nwriteblocks
, adapter
->nwriteblocks
,
3416 num_ldrv
*sizeof(u32
)) )
3419 if( copy_to_user(ustats
->rd_errors
, adapter
->rd_errors
,
3420 num_ldrv
*sizeof(u32
)) )
3423 if( copy_to_user(ustats
->wr_errors
, adapter
->wr_errors
,
3424 num_ldrv
*sizeof(u32
)) )
3435 if( (adapno
= GETADAP(uioc
.adapno
)) >= hba_count
)
3438 adapter
= hba_soft_state
[adapno
];
3441 * Deletion of logical drive is a special case. The adapter
3442 * should be quiescent before this command is issued.
3444 if( uioc
.uioc_rmbox
[0] == FC_DEL_LOGDRV
&&
3445 uioc
.uioc_rmbox
[2] == OP_DEL_LOGDRV
) {
3448 * Do we support this feature
3450 if( !adapter
->support_random_del
) {
3451 printk(KERN_WARNING
"megaraid: logdrv ");
3452 printk("delete on non-supporting F/W.\n");
3457 rval
= mega_del_logdrv( adapter
, uioc
.uioc_rmbox
[3] );
3460 memset(&mc
, 0, sizeof(megacmd_t
));
3464 rval
= mega_n_to_m((void __user
*)arg
, &mc
);
3470 * This interface only support the regular passthru commands.
3471 * Reject extended passthru and 64-bit passthru
3473 if( uioc
.uioc_rmbox
[0] == MEGA_MBOXCMD_PASSTHRU64
||
3474 uioc
.uioc_rmbox
[0] == MEGA_MBOXCMD_EXTPTHRU
) {
3476 printk(KERN_WARNING
"megaraid: rejected passthru.\n");
3482 * For all internal commands, the buffer must be allocated in
3483 * <4GB address range
3485 if( make_local_pdev(adapter
, &pdev
) != 0 )
3488 /* Is it a passthru command or a DCMD */
3489 if( uioc
.uioc_rmbox
[0] == MEGA_MBOXCMD_PASSTHRU
) {
3490 /* Passthru commands */
3492 pthru
= pci_alloc_consistent(pdev
,
3493 sizeof(mega_passthru
),
3496 if( pthru
== NULL
) {
3497 free_local_pdev(pdev
);
3502 * The user passthru structure
3504 upthru
= (mega_passthru __user
*)(unsigned long)MBOX(uioc
)->xferaddr
;
3507 * Copy in the user passthru here.
3509 if( copy_from_user(pthru
, upthru
,
3510 sizeof(mega_passthru
)) ) {
3512 pci_free_consistent(pdev
,
3513 sizeof(mega_passthru
), pthru
,
3516 free_local_pdev(pdev
);
3522 * Is there a data transfer
3524 if( pthru
->dataxferlen
) {
3525 data
= pci_alloc_consistent(pdev
,
3529 if( data
== NULL
) {
3530 pci_free_consistent(pdev
,
3531 sizeof(mega_passthru
),
3535 free_local_pdev(pdev
);
3541 * Save the user address and point the kernel
3542 * address at just allocated memory
3544 uxferaddr
= pthru
->dataxferaddr
;
3545 pthru
->dataxferaddr
= data_dma_hndl
;
3550 * Is data coming down-stream
3552 if( pthru
->dataxferlen
&& (uioc
.flags
& UIOC_WR
) ) {
3556 if( copy_from_user(data
, (char __user
*)(unsigned long) uxferaddr
,
3557 pthru
->dataxferlen
) ) {
3559 goto freemem_and_return
;
3563 memset(&mc
, 0, sizeof(megacmd_t
));
3565 mc
.cmd
= MEGA_MBOXCMD_PASSTHRU
;
3566 mc
.xferaddr
= (u32
)pthru_dma_hndl
;
3571 mega_internal_command(adapter
, &mc
, pthru
);
3573 rval
= mega_n_to_m((void __user
*)arg
, &mc
);
3575 if( rval
) goto freemem_and_return
;
3579 * Is data going up-stream
3581 if( pthru
->dataxferlen
&& (uioc
.flags
& UIOC_RD
) ) {
3582 if( copy_to_user((char __user
*)(unsigned long) uxferaddr
, data
,
3583 pthru
->dataxferlen
) ) {
3589 * Send the request sense data also, irrespective of
3590 * whether the user has asked for it or not.
3592 if (copy_to_user(upthru
->reqsensearea
,
3593 pthru
->reqsensearea
, 14))
3597 if( pthru
->dataxferlen
) {
3598 pci_free_consistent(pdev
,
3599 pthru
->dataxferlen
, data
,
3603 pci_free_consistent(pdev
, sizeof(mega_passthru
),
3604 pthru
, pthru_dma_hndl
);
3606 free_local_pdev(pdev
);
3614 * Is there a data transfer
3616 if( uioc
.xferlen
) {
3617 data
= pci_alloc_consistent(pdev
,
3618 uioc
.xferlen
, &data_dma_hndl
);
3620 if( data
== NULL
) {
3621 free_local_pdev(pdev
);
3625 uxferaddr
= MBOX(uioc
)->xferaddr
;
3629 * Is data coming down-stream
3631 if( uioc
.xferlen
&& (uioc
.flags
& UIOC_WR
) ) {
3635 if( copy_from_user(data
, (char __user
*)(unsigned long) uxferaddr
,
3638 pci_free_consistent(pdev
,
3640 data
, data_dma_hndl
);
3642 free_local_pdev(pdev
);
3648 memcpy(&mc
, MBOX(uioc
), sizeof(megacmd_t
));
3650 mc
.xferaddr
= (u32
)data_dma_hndl
;
3655 mega_internal_command(adapter
, &mc
, NULL
);
3657 rval
= mega_n_to_m((void __user
*)arg
, &mc
);
3660 if( uioc
.xferlen
) {
3661 pci_free_consistent(pdev
,
3666 free_local_pdev(pdev
);
3672 * Is data going up-stream
3674 if( uioc
.xferlen
&& (uioc
.flags
& UIOC_RD
) ) {
3675 if( copy_to_user((char __user
*)(unsigned long) uxferaddr
, data
,
3682 if( uioc
.xferlen
) {
3683 pci_free_consistent(pdev
,
3688 free_local_pdev(pdev
);
3701 megadev_unlocked_ioctl(struct file
*filep
, unsigned int cmd
, unsigned long arg
)
3705 mutex_lock(&megadev_mutex
);
3706 ret
= megadev_ioctl(filep
, cmd
, arg
);
3707 mutex_unlock(&megadev_mutex
);
3714 * @arg - user address
3715 * @uioc - new ioctl structure
3717 * A thin layer to convert older mimd interface ioctl structure to NIT ioctl
3720 * Converts the older mimd ioctl structure to newer NIT structure
3723 mega_m_to_n(void __user
*arg
, nitioctl_t
*uioc
)
3725 struct uioctl_t uioc_mimd
;
3726 char signature
[8] = {0};
3732 * check is the application conforms to NIT. We do not have to do much
3734 * We exploit the fact that the signature is stored in the very
3735 * begining of the structure.
3738 if( copy_from_user(signature
, arg
, 7) )
3741 if( memcmp(signature
, "MEGANIT", 7) == 0 ) {
3744 * NOTE NOTE: The nit ioctl is still under flux because of
3745 * change of mailbox definition, in HPE. No applications yet
3746 * use this interface and let's not have applications use this
3747 * interface till the new specifitions are in place.
3751 if( copy_from_user(uioc
, arg
, sizeof(nitioctl_t
)) )
3758 * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t
3760 * Get the user ioctl structure
3762 if( copy_from_user(&uioc_mimd
, arg
, sizeof(struct uioctl_t
)) )
3767 * Get the opcode and subopcode for the commands
3769 opcode
= uioc_mimd
.ui
.fcs
.opcode
;
3770 subopcode
= uioc_mimd
.ui
.fcs
.subopcode
;
3775 switch (subopcode
) {
3777 case MEGAIOC_QDRVRVER
: /* Query driver version */
3778 uioc
->opcode
= GET_DRIVER_VER
;
3779 uioc
->uioc_uaddr
= uioc_mimd
.data
;
3782 case MEGAIOC_QNADAP
: /* Get # of adapters */
3783 uioc
->opcode
= GET_N_ADAP
;
3784 uioc
->uioc_uaddr
= uioc_mimd
.data
;
3787 case MEGAIOC_QADAPINFO
: /* Get adapter information */
3788 uioc
->opcode
= GET_ADAP_INFO
;
3789 uioc
->adapno
= uioc_mimd
.ui
.fcs
.adapno
;
3790 uioc
->uioc_uaddr
= uioc_mimd
.data
;
3802 uioc
->opcode
= MBOX_CMD
;
3803 uioc
->adapno
= uioc_mimd
.ui
.fcs
.adapno
;
3805 memcpy(uioc
->uioc_rmbox
, uioc_mimd
.mbox
, 18);
3807 uioc
->xferlen
= uioc_mimd
.ui
.fcs
.length
;
3809 if( uioc_mimd
.outlen
) uioc
->flags
= UIOC_RD
;
3810 if( uioc_mimd
.inlen
) uioc
->flags
|= UIOC_WR
;
3816 uioc
->opcode
= MBOX_CMD
;
3817 uioc
->adapno
= uioc_mimd
.ui
.fcs
.adapno
;
3819 memcpy(uioc
->uioc_rmbox
, uioc_mimd
.mbox
, 18);
3822 * Choose the xferlen bigger of input and output data
3824 uioc
->xferlen
= uioc_mimd
.outlen
> uioc_mimd
.inlen
?
3825 uioc_mimd
.outlen
: uioc_mimd
.inlen
;
3827 if( uioc_mimd
.outlen
) uioc
->flags
= UIOC_RD
;
3828 if( uioc_mimd
.inlen
) uioc
->flags
|= UIOC_WR
;
3842 * @arg - user address
3843 * @mc - mailbox command
3845 * Updates the status information to the application, depending on application
3846 * conforms to older mimd ioctl interface or newer NIT ioctl interface
3849 mega_n_to_m(void __user
*arg
, megacmd_t
*mc
)
3851 nitioctl_t __user
*uiocp
;
3852 megacmd_t __user
*umc
;
3853 mega_passthru __user
*upthru
;
3854 struct uioctl_t __user
*uioc_mimd
;
3855 char signature
[8] = {0};
3858 * check is the application conforms to NIT.
3860 if( copy_from_user(signature
, arg
, 7) )
3863 if( memcmp(signature
, "MEGANIT", 7) == 0 ) {
3867 if( put_user(mc
->status
, (u8 __user
*)&MBOX_P(uiocp
)->status
) )
3870 if( mc
->cmd
== MEGA_MBOXCMD_PASSTHRU
) {
3872 umc
= MBOX_P(uiocp
);
3874 if (get_user(upthru
, (mega_passthru __user
* __user
*)&umc
->xferaddr
))
3877 if( put_user(mc
->status
, (u8 __user
*)&upthru
->scsistatus
))
3884 if( put_user(mc
->status
, (u8 __user
*)&uioc_mimd
->mbox
[17]) )
3887 if( mc
->cmd
== MEGA_MBOXCMD_PASSTHRU
) {
3889 umc
= (megacmd_t __user
*)uioc_mimd
->mbox
;
3891 if (get_user(upthru
, (mega_passthru __user
* __user
*)&umc
->xferaddr
))
3894 if( put_user(mc
->status
, (u8 __user
*)&upthru
->scsistatus
) )
3904 * MEGARAID 'FW' commands.
3908 * mega_is_bios_enabled()
3909 * @adapter - pointer to our soft state
3911 * issue command to find out if the BIOS is enabled for this controller
3914 mega_is_bios_enabled(adapter_t
*adapter
)
3916 unsigned char raw_mbox
[sizeof(struct mbox_out
)];
3920 mbox
= (mbox_t
*)raw_mbox
;
3922 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
3924 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
3926 mbox
->m_out
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
3928 raw_mbox
[0] = IS_BIOS_ENABLED
;
3929 raw_mbox
[2] = GET_BIOS
;
3932 ret
= issue_scb_block(adapter
, raw_mbox
);
3934 return *(char *)adapter
->mega_buffer
;
3939 * mega_enum_raid_scsi()
3940 * @adapter - pointer to our soft state
3942 * Find out what channels are RAID/SCSI. This information is used to
3943 * differentiate the virtual channels and physical channels and to support
3944 * ROMB feature and non-disk devices.
3947 mega_enum_raid_scsi(adapter_t
*adapter
)
3949 unsigned char raw_mbox
[sizeof(struct mbox_out
)];
3953 mbox
= (mbox_t
*)raw_mbox
;
3955 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
3958 * issue command to find out what channels are raid/scsi
3960 raw_mbox
[0] = CHNL_CLASS
;
3961 raw_mbox
[2] = GET_CHNL_CLASS
;
3963 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
3965 mbox
->m_out
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
3968 * Non-ROMB firmware fail this command, so all channels
3969 * must be shown RAID
3971 adapter
->mega_ch_class
= 0xFF;
3973 if(!issue_scb_block(adapter
, raw_mbox
)) {
3974 adapter
->mega_ch_class
= *((char *)adapter
->mega_buffer
);
3978 for( i
= 0; i
< adapter
->product_info
.nchannels
; i
++ ) {
3979 if( (adapter
->mega_ch_class
>> i
) & 0x01 ) {
3980 printk(KERN_INFO
"megaraid: channel[%d] is raid.\n",
3984 printk(KERN_INFO
"megaraid: channel[%d] is scsi.\n",
3994 * mega_get_boot_drv()
3995 * @adapter - pointer to our soft state
3997 * Find out which device is the boot device. Note, any logical drive or any
3998 * phyical device (e.g., a CDROM) can be designated as a boot device.
4001 mega_get_boot_drv(adapter_t
*adapter
)
4003 struct private_bios_data
*prv_bios_data
;
4004 unsigned char raw_mbox
[sizeof(struct mbox_out
)];
4011 mbox
= (mbox_t
*)raw_mbox
;
4013 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
4015 raw_mbox
[0] = BIOS_PVT_DATA
;
4016 raw_mbox
[2] = GET_BIOS_PVT_DATA
;
4018 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
4020 mbox
->m_out
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
4022 adapter
->boot_ldrv_enabled
= 0;
4023 adapter
->boot_ldrv
= 0;
4025 adapter
->boot_pdrv_enabled
= 0;
4026 adapter
->boot_pdrv_ch
= 0;
4027 adapter
->boot_pdrv_tgt
= 0;
4029 if(issue_scb_block(adapter
, raw_mbox
) == 0) {
4031 (struct private_bios_data
*)adapter
->mega_buffer
;
4034 cksum_p
= (char *)prv_bios_data
;
4035 for (i
= 0; i
< 14; i
++ ) {
4036 cksum
+= (u16
)(*cksum_p
++);
4039 if (prv_bios_data
->cksum
== (u16
)(0-cksum
) ) {
4042 * If MSB is set, a physical drive is set as boot
4045 if( prv_bios_data
->boot_drv
& 0x80 ) {
4046 adapter
->boot_pdrv_enabled
= 1;
4047 boot_pdrv
= prv_bios_data
->boot_drv
& 0x7F;
4048 adapter
->boot_pdrv_ch
= boot_pdrv
/ 16;
4049 adapter
->boot_pdrv_tgt
= boot_pdrv
% 16;
4052 adapter
->boot_ldrv_enabled
= 1;
4053 adapter
->boot_ldrv
= prv_bios_data
->boot_drv
;
4061 * mega_support_random_del()
4062 * @adapter - pointer to our soft state
4064 * Find out if this controller supports random deletion and addition of
4068 mega_support_random_del(adapter_t
*adapter
)
4070 unsigned char raw_mbox
[sizeof(struct mbox_out
)];
4074 mbox
= (mbox_t
*)raw_mbox
;
4076 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
4081 raw_mbox
[0] = FC_DEL_LOGDRV
;
4082 raw_mbox
[2] = OP_SUP_DEL_LOGDRV
;
4084 rval
= issue_scb_block(adapter
, raw_mbox
);
4091 * mega_support_ext_cdb()
4092 * @adapter - pointer to our soft state
4094 * Find out if this firmware support cdblen > 10
4097 mega_support_ext_cdb(adapter_t
*adapter
)
4099 unsigned char raw_mbox
[sizeof(struct mbox_out
)];
4103 mbox
= (mbox_t
*)raw_mbox
;
4105 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
4107 * issue command to find out if controller supports extended CDBs.
4112 rval
= issue_scb_block(adapter
, raw_mbox
);
4120 * @adapter - pointer to our soft state
4121 * @logdrv - logical drive to be deleted
4123 * Delete the specified logical drive. It is the responsibility of the user
4124 * app to let the OS know about this operation.
4127 mega_del_logdrv(adapter_t
*adapter
, int logdrv
)
4129 unsigned long flags
;
4134 * Stop sending commands to the controller, queue them internally.
4135 * When deletion is complete, ISR will flush the queue.
4137 atomic_set(&adapter
->quiescent
, 1);
4140 * Wait till all the issued commands are complete and there are no
4141 * commands in the pending queue
4143 while (atomic_read(&adapter
->pend_cmds
) > 0 ||
4144 !list_empty(&adapter
->pending_list
))
4145 msleep(1000); /* sleep for 1s */
4147 rval
= mega_do_del_logdrv(adapter
, logdrv
);
4149 spin_lock_irqsave(&adapter
->lock
, flags
);
4152 * If delete operation was successful, add 0x80 to the logical drive
4153 * ids for commands in the pending queue.
4155 if (adapter
->read_ldidmap
) {
4156 struct list_head
*pos
;
4157 list_for_each(pos
, &adapter
->pending_list
) {
4158 scb
= list_entry(pos
, scb_t
, list
);
4159 if (scb
->pthru
->logdrv
< 0x80 )
4160 scb
->pthru
->logdrv
+= 0x80;
4164 atomic_set(&adapter
->quiescent
, 0);
4166 mega_runpendq(adapter
);
4168 spin_unlock_irqrestore(&adapter
->lock
, flags
);
4175 mega_do_del_logdrv(adapter_t
*adapter
, int logdrv
)
4180 memset( &mc
, 0, sizeof(megacmd_t
));
4182 mc
.cmd
= FC_DEL_LOGDRV
;
4183 mc
.opcode
= OP_DEL_LOGDRV
;
4184 mc
.subopcode
= logdrv
;
4186 rval
= mega_internal_command(adapter
, &mc
, NULL
);
4188 /* log this event */
4190 printk(KERN_WARNING
"megaraid: Delete LD-%d failed.", logdrv
);
4195 * After deleting first logical drive, the logical drives must be
4196 * addressed by adding 0x80 to the logical drive id.
4198 adapter
->read_ldidmap
= 1;
4205 * mega_get_max_sgl()
4206 * @adapter - pointer to our soft state
4208 * Find out the maximum number of scatter-gather elements supported by this
4209 * version of the firmware
4212 mega_get_max_sgl(adapter_t
*adapter
)
4214 unsigned char raw_mbox
[sizeof(struct mbox_out
)];
4217 mbox
= (mbox_t
*)raw_mbox
;
4219 memset(mbox
, 0, sizeof(raw_mbox
));
4221 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
4223 mbox
->m_out
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
4225 raw_mbox
[0] = MAIN_MISC_OPCODE
;
4226 raw_mbox
[2] = GET_MAX_SG_SUPPORT
;
4229 if( issue_scb_block(adapter
, raw_mbox
) ) {
4231 * f/w does not support this command. Choose the default value
4233 adapter
->sglen
= MIN_SGLIST
;
4236 adapter
->sglen
= *((char *)adapter
->mega_buffer
);
4239 * Make sure this is not more than the resources we are
4240 * planning to allocate
4242 if ( adapter
->sglen
> MAX_SGLIST
)
4243 adapter
->sglen
= MAX_SGLIST
;
4251 * mega_support_cluster()
4252 * @adapter - pointer to our soft state
4254 * Find out if this firmware support cluster calls.
4257 mega_support_cluster(adapter_t
*adapter
)
4259 unsigned char raw_mbox
[sizeof(struct mbox_out
)];
4262 mbox
= (mbox_t
*)raw_mbox
;
4264 memset(mbox
, 0, sizeof(raw_mbox
));
4266 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
4268 mbox
->m_out
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
4271 * Try to get the initiator id. This command will succeed iff the
4272 * clustering is available on this HBA.
4274 raw_mbox
[0] = MEGA_GET_TARGET_ID
;
4276 if( issue_scb_block(adapter
, raw_mbox
) == 0 ) {
4279 * Cluster support available. Get the initiator target id.
4280 * Tell our id to mid-layer too.
4282 adapter
->this_id
= *(u32
*)adapter
->mega_buffer
;
4283 adapter
->host
->this_id
= adapter
->this_id
;
4291 #ifdef CONFIG_PROC_FS
4294 * @adapter - pointer to our soft state
4295 * @dma_handle - DMA address of the buffer
4297 * Issue internal comamnds while interrupts are available.
4298 * We only issue direct mailbox commands from within the driver. ioctl()
4299 * interface using these routines can issue passthru commands.
4302 mega_adapinq(adapter_t
*adapter
, dma_addr_t dma_handle
)
4306 memset(&mc
, 0, sizeof(megacmd_t
));
4308 if( adapter
->flag
& BOARD_40LD
) {
4309 mc
.cmd
= FC_NEW_CONFIG
;
4310 mc
.opcode
= NC_SUBOP_ENQUIRY3
;
4311 mc
.subopcode
= ENQ3_GET_SOLICITED_FULL
;
4314 mc
.cmd
= MEGA_MBOXCMD_ADPEXTINQ
;
4317 mc
.xferaddr
= (u32
)dma_handle
;
4319 if ( mega_internal_command(adapter
, &mc
, NULL
) != 0 ) {
4327 /** mega_internal_dev_inquiry()
4328 * @adapter - pointer to our soft state
4329 * @ch - channel for this device
4330 * @tgt - ID of this device
4331 * @buf_dma_handle - DMA address of the buffer
4333 * Issue the scsi inquiry for the specified device.
4336 mega_internal_dev_inquiry(adapter_t
*adapter
, u8 ch
, u8 tgt
,
4337 dma_addr_t buf_dma_handle
)
4339 mega_passthru
*pthru
;
4340 dma_addr_t pthru_dma_handle
;
4343 struct pci_dev
*pdev
;
4347 * For all internal commands, the buffer must be allocated in <4GB
4350 if( make_local_pdev(adapter
, &pdev
) != 0 ) return -1;
4352 pthru
= pci_alloc_consistent(pdev
, sizeof(mega_passthru
),
4355 if( pthru
== NULL
) {
4356 free_local_pdev(pdev
);
4362 pthru
->reqsenselen
= 14;
4363 pthru
->islogical
= 0;
4365 pthru
->channel
= (adapter
->flag
& BOARD_40LD
) ? 0 : ch
;
4367 pthru
->target
= (adapter
->flag
& BOARD_40LD
) ? (ch
<< 4)|tgt
: tgt
;
4371 pthru
->cdb
[0] = INQUIRY
;
4375 pthru
->cdb
[4] = 255;
4379 pthru
->dataxferaddr
= (u32
)buf_dma_handle
;
4380 pthru
->dataxferlen
= 256;
4382 memset(&mc
, 0, sizeof(megacmd_t
));
4384 mc
.cmd
= MEGA_MBOXCMD_PASSTHRU
;
4385 mc
.xferaddr
= (u32
)pthru_dma_handle
;
4387 rval
= mega_internal_command(adapter
, &mc
, pthru
);
4389 pci_free_consistent(pdev
, sizeof(mega_passthru
), pthru
,
4392 free_local_pdev(pdev
);
4399 * mega_internal_command()
4400 * @adapter - pointer to our soft state
4401 * @mc - the mailbox command
4402 * @pthru - Passthru structure for DCDB commands
4404 * Issue the internal commands in interrupt mode.
4405 * The last argument is the address of the passthru structure if the command
4406 * to be fired is a passthru command
4408 * lockscope specifies whether the caller has already acquired the lock. Of
4409 * course, the caller must know which lock we are talking about.
4411 * Note: parameter 'pthru' is null for non-passthru commands.
4414 mega_internal_command(adapter_t
*adapter
, megacmd_t
*mc
, mega_passthru
*pthru
)
4417 struct scsi_device
*sdev
;
4421 scmd
= scsi_allocate_command(GFP_KERNEL
);
4426 * The internal commands share one command id and hence are
4427 * serialized. This is so because we want to reserve maximum number of
4428 * available command ids for the I/O commands.
4430 mutex_lock(&adapter
->int_mtx
);
4432 scb
= &adapter
->int_scb
;
4433 memset(scb
, 0, sizeof(scb_t
));
4435 sdev
= kzalloc(sizeof(struct scsi_device
), GFP_KERNEL
);
4436 scmd
->device
= sdev
;
4438 memset(adapter
->int_cdb
, 0, sizeof(adapter
->int_cdb
));
4439 scmd
->cmnd
= adapter
->int_cdb
;
4440 scmd
->device
->host
= adapter
->host
;
4441 scmd
->host_scribble
= (void *)scb
;
4442 scmd
->cmnd
[0] = MEGA_INTERNAL_CMD
;
4444 scb
->state
|= SCB_ACTIVE
;
4447 memcpy(scb
->raw_mbox
, mc
, sizeof(megacmd_t
));
4450 * Is it a passthru command
4452 if( mc
->cmd
== MEGA_MBOXCMD_PASSTHRU
) {
4457 scb
->idx
= CMDID_INT_CMDS
;
4459 megaraid_queue(scmd
, mega_internal_done
);
4461 wait_for_completion(&adapter
->int_waitq
);
4463 rval
= scmd
->result
;
4464 mc
->status
= scmd
->result
;
4468 * Print a debug message for all failed commands. Applications can use
4471 if( scmd
->result
&& trace_level
) {
4472 printk("megaraid: cmd [%x, %x, %x] status:[%x]\n",
4473 mc
->cmd
, mc
->opcode
, mc
->subopcode
, scmd
->result
);
4476 mutex_unlock(&adapter
->int_mtx
);
4478 scsi_free_command(GFP_KERNEL
, scmd
);
4485 * mega_internal_done()
4486 * @scmd - internal scsi command
4488 * Callback routine for internal commands.
4491 mega_internal_done(Scsi_Cmnd
*scmd
)
4495 adapter
= (adapter_t
*)scmd
->device
->host
->hostdata
;
4497 complete(&adapter
->int_waitq
);
4502 static struct scsi_host_template megaraid_template
= {
4503 .module
= THIS_MODULE
,
4505 .proc_name
= "megaraid_legacy",
4506 .info
= megaraid_info
,
4507 .queuecommand
= megaraid_queue
,
4508 .bios_param
= megaraid_biosparam
,
4509 .max_sectors
= MAX_SECTORS_PER_IO
,
4510 .can_queue
= MAX_COMMANDS
,
4511 .this_id
= DEFAULT_INITIATOR_ID
,
4512 .sg_tablesize
= MAX_SGLIST
,
4513 .cmd_per_lun
= DEF_CMD_PER_LUN
,
4514 .use_clustering
= ENABLE_CLUSTERING
,
4515 .eh_abort_handler
= megaraid_abort
,
4516 .eh_device_reset_handler
= megaraid_reset
,
4517 .eh_bus_reset_handler
= megaraid_reset
,
4518 .eh_host_reset_handler
= megaraid_reset
,
4521 static int __devinit
4522 megaraid_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
4524 struct Scsi_Host
*host
;
4526 unsigned long mega_baseport
, tbase
, flag
= 0;
4527 u16 subsysid
, subsysvid
;
4528 u8 pci_bus
, pci_dev_func
;
4530 int error
= -ENODEV
;
4532 if (pci_enable_device(pdev
))
4534 pci_set_master(pdev
);
4536 pci_bus
= pdev
->bus
->number
;
4537 pci_dev_func
= pdev
->devfn
;
4540 * The megaraid3 stuff reports the ID of the Intel part which is not
4541 * remotely specific to the megaraid
4543 if (pdev
->vendor
== PCI_VENDOR_ID_INTEL
) {
4546 * Don't fall over the Compaq management cards using the same
4549 if (pdev
->subsystem_vendor
== PCI_VENDOR_ID_COMPAQ
&&
4550 pdev
->subsystem_device
== 0xC000)
4552 /* Now check the magic signature byte */
4553 pci_read_config_word(pdev
, PCI_CONF_AMISIG
, &magic
);
4554 if (magic
!= HBA_SIGNATURE_471
&& magic
!= HBA_SIGNATURE
)
4556 /* Ok it is probably a megaraid */
4560 * For these vendor and device ids, signature offsets are not
4561 * valid and 64 bit is implicit
4563 if (id
->driver_data
& BOARD_64BIT
)
4564 flag
|= BOARD_64BIT
;
4568 pci_read_config_dword(pdev
, PCI_CONF_AMISIG64
, &magic64
);
4569 if (magic64
== HBA_SIGNATURE_64BIT
)
4570 flag
|= BOARD_64BIT
;
4573 subsysvid
= pdev
->subsystem_vendor
;
4574 subsysid
= pdev
->subsystem_device
;
4576 printk(KERN_NOTICE
"megaraid: found 0x%4.04x:0x%4.04x:bus %d:",
4577 id
->vendor
, id
->device
, pci_bus
);
4579 printk("slot %d:func %d\n",
4580 PCI_SLOT(pci_dev_func
), PCI_FUNC(pci_dev_func
));
4582 /* Read the base port and IRQ from PCI */
4583 mega_baseport
= pci_resource_start(pdev
, 0);
4586 tbase
= mega_baseport
;
4587 if (pci_resource_flags(pdev
, 0) & IORESOURCE_MEM
) {
4588 flag
|= BOARD_MEMMAP
;
4590 if (!request_mem_region(mega_baseport
, 128, "megaraid")) {
4591 printk(KERN_WARNING
"megaraid: mem region busy!\n");
4592 goto out_disable_device
;
4595 mega_baseport
= (unsigned long)ioremap(mega_baseport
, 128);
4596 if (!mega_baseport
) {
4598 "megaraid: could not map hba memory\n");
4599 goto out_release_region
;
4602 flag
|= BOARD_IOMAP
;
4603 mega_baseport
+= 0x10;
4605 if (!request_region(mega_baseport
, 16, "megaraid"))
4606 goto out_disable_device
;
4609 /* Initialize SCSI Host structure */
4610 host
= scsi_host_alloc(&megaraid_template
, sizeof(adapter_t
));
4614 adapter
= (adapter_t
*)host
->hostdata
;
4615 memset(adapter
, 0, sizeof(adapter_t
));
4618 "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n",
4619 host
->host_no
, mega_baseport
, irq
);
4621 adapter
->base
= mega_baseport
;
4622 if (flag
& BOARD_MEMMAP
)
4623 adapter
->mmio_base
= (void __iomem
*) mega_baseport
;
4625 INIT_LIST_HEAD(&adapter
->free_list
);
4626 INIT_LIST_HEAD(&adapter
->pending_list
);
4627 INIT_LIST_HEAD(&adapter
->completed_list
);
4629 adapter
->flag
= flag
;
4630 spin_lock_init(&adapter
->lock
);
4632 host
->cmd_per_lun
= max_cmd_per_lun
;
4633 host
->max_sectors
= max_sectors_per_io
;
4635 adapter
->dev
= pdev
;
4636 adapter
->host
= host
;
4638 adapter
->host
->irq
= irq
;
4640 if (flag
& BOARD_MEMMAP
)
4641 adapter
->host
->base
= tbase
;
4643 adapter
->host
->io_port
= tbase
;
4644 adapter
->host
->n_io_port
= 16;
4647 adapter
->host
->unique_id
= (pci_bus
<< 8) | pci_dev_func
;
4650 * Allocate buffer to issue internal commands.
4652 adapter
->mega_buffer
= pci_alloc_consistent(adapter
->dev
,
4653 MEGA_BUFFER_SIZE
, &adapter
->buf_dma_handle
);
4654 if (!adapter
->mega_buffer
) {
4655 printk(KERN_WARNING
"megaraid: out of RAM.\n");
4659 adapter
->scb_list
= kmalloc(sizeof(scb_t
) * MAX_COMMANDS
, GFP_KERNEL
);
4660 if (!adapter
->scb_list
) {
4661 printk(KERN_WARNING
"megaraid: out of RAM.\n");
4662 goto out_free_cmd_buffer
;
4665 if (request_irq(irq
, (adapter
->flag
& BOARD_MEMMAP
) ?
4666 megaraid_isr_memmapped
: megaraid_isr_iomapped
,
4667 IRQF_SHARED
, "megaraid", adapter
)) {
4669 "megaraid: Couldn't register IRQ %d!\n", irq
);
4670 goto out_free_scb_list
;
4673 if (mega_setup_mailbox(adapter
))
4676 if (mega_query_adapter(adapter
))
4680 * Have checks for some buggy f/w
4682 if ((subsysid
== 0x1111) && (subsysvid
== 0x1111)) {
4686 if (!strcmp(adapter
->fw_version
, "3.00") ||
4687 !strcmp(adapter
->fw_version
, "3.01")) {
4689 printk( KERN_WARNING
4690 "megaraid: Your card is a Dell PERC "
4691 "2/SC RAID controller with "
4692 "firmware\nmegaraid: 3.00 or 3.01. "
4693 "This driver is known to have "
4694 "corruption issues\nmegaraid: with "
4695 "those firmware versions on this "
4696 "specific card. In order\nmegaraid: "
4697 "to protect your data, please upgrade "
4698 "your firmware to version\nmegaraid: "
4699 "3.10 or later, available from the "
4700 "Dell Technical Support web\n"
4701 "megaraid: site at\nhttp://support."
4702 "dell.com/us/en/filelib/download/"
4703 "index.asp?fileid=2940\n"
4709 * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with
4710 * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit
4711 * support, since this firmware cannot handle 64 bit
4714 if ((subsysvid
== HP_SUBSYS_VID
) &&
4715 ((subsysid
== 0x60E7) || (subsysid
== 0x60E8))) {
4719 if (!strcmp(adapter
->fw_version
, "H01.07") ||
4720 !strcmp(adapter
->fw_version
, "H01.08") ||
4721 !strcmp(adapter
->fw_version
, "H01.09") ) {
4723 "megaraid: Firmware H.01.07, "
4724 "H.01.08, and H.01.09 on 1M/2M "
4726 "megaraid: do not support 64 bit "
4727 "addressing.\nmegaraid: DISABLING "
4728 "64 bit support.\n");
4729 adapter
->flag
&= ~BOARD_64BIT
;
4733 if (mega_is_bios_enabled(adapter
))
4734 mega_hbas
[hba_count
].is_bios_enabled
= 1;
4735 mega_hbas
[hba_count
].hostdata_addr
= adapter
;
4738 * Find out which channel is raid and which is scsi. This is
4741 mega_enum_raid_scsi(adapter
);
4744 * Find out if a logical drive is set as the boot drive. If
4745 * there is one, will make that as the first logical drive.
4746 * ROMB: Do we have to boot from a physical drive. Then all
4747 * the physical drives would appear before the logical disks.
4748 * Else, all the physical drives would be exported to the mid
4749 * layer after logical drives.
4751 mega_get_boot_drv(adapter
);
4753 if (adapter
->boot_pdrv_enabled
) {
4754 j
= adapter
->product_info
.nchannels
;
4755 for( i
= 0; i
< j
; i
++ )
4756 adapter
->logdrv_chan
[i
] = 0;
4757 for( i
= j
; i
< NVIRT_CHAN
+ j
; i
++ )
4758 adapter
->logdrv_chan
[i
] = 1;
4760 for (i
= 0; i
< NVIRT_CHAN
; i
++)
4761 adapter
->logdrv_chan
[i
] = 1;
4762 for (i
= NVIRT_CHAN
; i
< MAX_CHANNELS
+NVIRT_CHAN
; i
++)
4763 adapter
->logdrv_chan
[i
] = 0;
4764 adapter
->mega_ch_class
<<= NVIRT_CHAN
;
4768 * Do we support random deletion and addition of logical
4771 adapter
->read_ldidmap
= 0; /* set it after first logdrv
4773 adapter
->support_random_del
= mega_support_random_del(adapter
);
4775 /* Initialize SCBs */
4776 if (mega_init_scb(adapter
))
4780 * Reset the pending commands counter
4782 atomic_set(&adapter
->pend_cmds
, 0);
4785 * Reset the adapter quiescent flag
4787 atomic_set(&adapter
->quiescent
, 0);
4789 hba_soft_state
[hba_count
] = adapter
;
4792 * Fill in the structure which needs to be passed back to the
4793 * application when it does an ioctl() for controller related
4798 mcontroller
[i
].base
= mega_baseport
;
4799 mcontroller
[i
].irq
= irq
;
4800 mcontroller
[i
].numldrv
= adapter
->numldrv
;
4801 mcontroller
[i
].pcibus
= pci_bus
;
4802 mcontroller
[i
].pcidev
= id
->device
;
4803 mcontroller
[i
].pcifun
= PCI_FUNC (pci_dev_func
);
4804 mcontroller
[i
].pciid
= -1;
4805 mcontroller
[i
].pcivendor
= id
->vendor
;
4806 mcontroller
[i
].pcislot
= PCI_SLOT(pci_dev_func
);
4807 mcontroller
[i
].uid
= (pci_bus
<< 8) | pci_dev_func
;
4810 /* Set the Mode of addressing to 64 bit if we can */
4811 if ((adapter
->flag
& BOARD_64BIT
) && (sizeof(dma_addr_t
) == 8)) {
4812 pci_set_dma_mask(pdev
, DMA_BIT_MASK(64));
4813 adapter
->has_64bit_addr
= 1;
4815 pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
4816 adapter
->has_64bit_addr
= 0;
4819 mutex_init(&adapter
->int_mtx
);
4820 init_completion(&adapter
->int_waitq
);
4822 adapter
->this_id
= DEFAULT_INITIATOR_ID
;
4823 adapter
->host
->this_id
= DEFAULT_INITIATOR_ID
;
4825 #if MEGA_HAVE_CLUSTERING
4827 * Is cluster support enabled on this controller
4828 * Note: In a cluster the HBAs ( the initiators ) will have
4829 * different target IDs and we cannot assume it to be 7. Call
4830 * to mega_support_cluster() will get the target ids also if
4831 * the cluster support is available
4833 adapter
->has_cluster
= mega_support_cluster(adapter
);
4834 if (adapter
->has_cluster
) {
4836 "megaraid: Cluster driver, initiator id:%d\n",
4841 pci_set_drvdata(pdev
, host
);
4843 mega_create_proc_entry(hba_count
, mega_proc_dir_entry
);
4845 error
= scsi_add_host(host
, &pdev
->dev
);
4849 scsi_scan_host(host
);
4854 pci_free_consistent(adapter
->dev
, sizeof(mbox64_t
),
4855 adapter
->una_mbox64
, adapter
->una_mbox64_dma
);
4857 free_irq(adapter
->host
->irq
, adapter
);
4859 kfree(adapter
->scb_list
);
4860 out_free_cmd_buffer
:
4861 pci_free_consistent(adapter
->dev
, MEGA_BUFFER_SIZE
,
4862 adapter
->mega_buffer
, adapter
->buf_dma_handle
);
4864 scsi_host_put(host
);
4866 if (flag
& BOARD_MEMMAP
)
4867 iounmap((void *)mega_baseport
);
4869 if (flag
& BOARD_MEMMAP
)
4870 release_mem_region(tbase
, 128);
4872 release_region(mega_baseport
, 16);
4874 pci_disable_device(pdev
);
4880 __megaraid_shutdown(adapter_t
*adapter
)
4882 u_char raw_mbox
[sizeof(struct mbox_out
)];
4883 mbox_t
*mbox
= (mbox_t
*)raw_mbox
;
4886 /* Flush adapter cache */
4887 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
4888 raw_mbox
[0] = FLUSH_ADAPTER
;
4890 free_irq(adapter
->host
->irq
, adapter
);
4892 /* Issue a blocking (interrupts disabled) command to the card */
4893 issue_scb_block(adapter
, raw_mbox
);
4895 /* Flush disks cache */
4896 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
4897 raw_mbox
[0] = FLUSH_SYSTEM
;
4899 /* Issue a blocking (interrupts disabled) command to the card */
4900 issue_scb_block(adapter
, raw_mbox
);
4902 if (atomic_read(&adapter
->pend_cmds
) > 0)
4903 printk(KERN_WARNING
"megaraid: pending commands!!\n");
4906 * Have a delibrate delay to make sure all the caches are
4909 for (i
= 0; i
<= 10; i
++)
4913 static void __devexit
4914 megaraid_remove_one(struct pci_dev
*pdev
)
4916 struct Scsi_Host
*host
= pci_get_drvdata(pdev
);
4917 adapter_t
*adapter
= (adapter_t
*)host
->hostdata
;
4919 scsi_remove_host(host
);
4921 __megaraid_shutdown(adapter
);
4923 /* Free our resources */
4924 if (adapter
->flag
& BOARD_MEMMAP
) {
4925 iounmap((void *)adapter
->base
);
4926 release_mem_region(adapter
->host
->base
, 128);
4928 release_region(adapter
->base
, 16);
4930 mega_free_sgl(adapter
);
4932 #ifdef CONFIG_PROC_FS
4933 if (adapter
->controller_proc_dir_entry
) {
4934 remove_proc_entry("stat", adapter
->controller_proc_dir_entry
);
4935 remove_proc_entry("config",
4936 adapter
->controller_proc_dir_entry
);
4937 remove_proc_entry("mailbox",
4938 adapter
->controller_proc_dir_entry
);
4939 #if MEGA_HAVE_ENH_PROC
4940 remove_proc_entry("rebuild-rate",
4941 adapter
->controller_proc_dir_entry
);
4942 remove_proc_entry("battery-status",
4943 adapter
->controller_proc_dir_entry
);
4945 remove_proc_entry("diskdrives-ch0",
4946 adapter
->controller_proc_dir_entry
);
4947 remove_proc_entry("diskdrives-ch1",
4948 adapter
->controller_proc_dir_entry
);
4949 remove_proc_entry("diskdrives-ch2",
4950 adapter
->controller_proc_dir_entry
);
4951 remove_proc_entry("diskdrives-ch3",
4952 adapter
->controller_proc_dir_entry
);
4954 remove_proc_entry("raiddrives-0-9",
4955 adapter
->controller_proc_dir_entry
);
4956 remove_proc_entry("raiddrives-10-19",
4957 adapter
->controller_proc_dir_entry
);
4958 remove_proc_entry("raiddrives-20-29",
4959 adapter
->controller_proc_dir_entry
);
4960 remove_proc_entry("raiddrives-30-39",
4961 adapter
->controller_proc_dir_entry
);
4964 char buf
[12] = { 0 };
4965 sprintf(buf
, "hba%d", adapter
->host
->host_no
);
4966 remove_proc_entry(buf
, mega_proc_dir_entry
);
4971 pci_free_consistent(adapter
->dev
, MEGA_BUFFER_SIZE
,
4972 adapter
->mega_buffer
, adapter
->buf_dma_handle
);
4973 kfree(adapter
->scb_list
);
4974 pci_free_consistent(adapter
->dev
, sizeof(mbox64_t
),
4975 adapter
->una_mbox64
, adapter
->una_mbox64_dma
);
4977 scsi_host_put(host
);
4978 pci_disable_device(pdev
);
4984 megaraid_shutdown(struct pci_dev
*pdev
)
4986 struct Scsi_Host
*host
= pci_get_drvdata(pdev
);
4987 adapter_t
*adapter
= (adapter_t
*)host
->hostdata
;
4989 __megaraid_shutdown(adapter
);
4992 static struct pci_device_id megaraid_pci_tbl
[] = {
4993 {PCI_VENDOR_ID_AMI
, PCI_DEVICE_ID_AMI_MEGARAID
,
4994 PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
4995 {PCI_VENDOR_ID_AMI
, PCI_DEVICE_ID_AMI_MEGARAID2
,
4996 PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
4997 {PCI_VENDOR_ID_INTEL
, PCI_DEVICE_ID_AMI_MEGARAID3
,
4998 PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
5001 MODULE_DEVICE_TABLE(pci
, megaraid_pci_tbl
);
5003 static struct pci_driver megaraid_pci_driver
= {
5004 .name
= "megaraid_legacy",
5005 .id_table
= megaraid_pci_tbl
,
5006 .probe
= megaraid_probe_one
,
5007 .remove
= __devexit_p(megaraid_remove_one
),
5008 .shutdown
= megaraid_shutdown
,
5011 static int __init
megaraid_init(void)
5015 if ((max_cmd_per_lun
<= 0) || (max_cmd_per_lun
> MAX_CMD_PER_LUN
))
5016 max_cmd_per_lun
= MAX_CMD_PER_LUN
;
5017 if (max_mbox_busy_wait
> MBOX_BUSY_WAIT
)
5018 max_mbox_busy_wait
= MBOX_BUSY_WAIT
;
5020 #ifdef CONFIG_PROC_FS
5021 mega_proc_dir_entry
= proc_mkdir("megaraid", NULL
);
5022 if (!mega_proc_dir_entry
) {
5024 "megaraid: failed to create megaraid root\n");
5027 error
= pci_register_driver(&megaraid_pci_driver
);
5029 #ifdef CONFIG_PROC_FS
5030 remove_proc_entry("megaraid", NULL
);
5036 * Register the driver as a character device, for applications
5037 * to access it for ioctls.
5038 * First argument (major) to register_chrdev implies a dynamic
5039 * major number allocation.
5041 major
= register_chrdev(0, "megadev_legacy", &megadev_fops
);
5044 "megaraid: failed to register char device\n");
5050 static void __exit
megaraid_exit(void)
5053 * Unregister the character device interface to the driver.
5055 unregister_chrdev(major
, "megadev_legacy");
5057 pci_unregister_driver(&megaraid_pci_driver
);
5059 #ifdef CONFIG_PROC_FS
5060 remove_proc_entry("megaraid", NULL
);
5064 module_init(megaraid_init
);
5065 module_exit(megaraid_exit
);
5067 /* vi: set ts=8 sw=8 tw=78: */