1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Linux MegaRAID device driver
6 * Copyright (c) 2002 LSI Logic Corporation.
8 * Copyright (c) 2002 Red Hat, Inc. All rights reserved.
10 * - speed-ups (list handling fixes, issued_list, optimizations.)
13 * Copyright (c) 2003 Christoph Hellwig <hch@lst.de>
14 * - new-style, hotplug-aware pci probing and scsi registration
16 * Version : v2.00.4 Mon Nov 14 14:02:43 EST 2005 - Seokmann Ju
17 * <Seokmann.Ju@lsil.com>
19 * Description: Linux device driver for LSI Logic MegaRAID controller
21 * Supported controllers: MegaRAID 418, 428, 438, 466, 762, 467, 471, 490, 493
24 * This driver is supported by LSI Logic, with assistance from Red Hat, Dell,
25 * and others. Please send updates to the mailing list
26 * linux-scsi@vger.kernel.org .
31 #include <linux/blkdev.h>
32 #include <linux/uaccess.h>
34 #include <linux/completion.h>
35 #include <linux/delay.h>
36 #include <linux/proc_fs.h>
37 #include <linux/seq_file.h>
38 #include <linux/reboot.h>
39 #include <linux/module.h>
40 #include <linux/list.h>
41 #include <linux/interrupt.h>
42 #include <linux/pci.h>
43 #include <linux/init.h>
44 #include <linux/dma-mapping.h>
45 #include <linux/mutex.h>
46 #include <linux/slab.h>
48 #include <scsi/scsi.h>
49 #include <scsi/scsi_cmnd.h>
50 #include <scsi/scsi_device.h>
51 #include <scsi/scsi_eh.h>
52 #include <scsi/scsi_host.h>
53 #include <scsi/scsi_tcq.h>
54 #include <scsi/scsicam.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
= dma_alloc_coherent(&adapter
->dev
->dev
,
142 &adapter
->una_mbox64_dma
,
145 if( !adapter
->una_mbox64
) return -1;
147 adapter
->mbox
= &adapter
->una_mbox64
->mbox
;
149 adapter
->mbox
= (mbox_t
*)((((unsigned long) adapter
->mbox
) + 15) &
152 adapter
->mbox64
= (mbox64_t
*)(((unsigned long)adapter
->mbox
) - 8);
154 align
= ((void *)adapter
->mbox
) - ((void *)&adapter
->una_mbox64
->mbox
);
156 adapter
->mbox_dma
= adapter
->una_mbox64_dma
+ 8 + align
;
159 * Register the mailbox if the controller is an io-mapped controller
161 if( adapter
->flag
& BOARD_IOMAP
) {
163 outb(adapter
->mbox_dma
& 0xFF,
164 adapter
->host
->io_port
+ MBOX_PORT0
);
166 outb((adapter
->mbox_dma
>> 8) & 0xFF,
167 adapter
->host
->io_port
+ MBOX_PORT1
);
169 outb((adapter
->mbox_dma
>> 16) & 0xFF,
170 adapter
->host
->io_port
+ MBOX_PORT2
);
172 outb((adapter
->mbox_dma
>> 24) & 0xFF,
173 adapter
->host
->io_port
+ MBOX_PORT3
);
175 outb(ENABLE_MBOX_BYTE
,
176 adapter
->host
->io_port
+ ENABLE_MBOX_REGION
);
188 * mega_query_adapter()
189 * @adapter - pointer to our soft state
191 * Issue the adapter inquiry commands to the controller and find out
192 * information and parameter about the devices attached
195 mega_query_adapter(adapter_t
*adapter
)
197 dma_addr_t prod_info_dma_handle
;
198 mega_inquiry3
*inquiry3
;
199 struct mbox_out mbox
;
200 u8
*raw_mbox
= (u8
*)&mbox
;
203 /* Initialize adapter inquiry mailbox */
205 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
206 memset(&mbox
, 0, sizeof(mbox
));
209 * Try to issue Inquiry3 command
210 * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and
211 * update enquiry3 structure
213 mbox
.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 (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
= dma_alloc_coherent(&adapter
->dev
->dev
,
230 sizeof(mraid_ext_inquiry
),
231 &dma_handle
, GFP_KERNEL
);
233 if( ext_inq
== NULL
) return -1;
235 inq
= &ext_inq
->raid_inq
;
237 mbox
.xferaddr
= (u32
)dma_handle
;
239 /*issue old 0x04 command to adapter */
240 mbox
.cmd
= MEGA_MBOXCMD_ADPEXTINQ
;
242 issue_scb_block(adapter
, raw_mbox
);
245 * update Enquiry3 and ProductInfo structures with
246 * mraid_inquiry structure
248 mega_8_to_40ld(inq
, inquiry3
,
249 (mega_product_info
*)&adapter
->product_info
);
251 dma_free_coherent(&adapter
->dev
->dev
,
252 sizeof(mraid_ext_inquiry
), ext_inq
,
255 } else { /*adapter supports 40ld */
256 adapter
->flag
|= BOARD_40LD
;
259 * get product_info, which is static information and will be
262 prod_info_dma_handle
= dma_map_single(&adapter
->dev
->dev
,
263 (void *)&adapter
->product_info
,
264 sizeof(mega_product_info
),
267 mbox
.xferaddr
= prod_info_dma_handle
;
269 raw_mbox
[0] = FC_NEW_CONFIG
; /* i.e. mbox->cmd=0xA1 */
270 raw_mbox
[2] = NC_SUBOP_PRODUCT_INFO
; /* i.e. 0x0E */
272 if ((retval
= issue_scb_block(adapter
, raw_mbox
)))
273 dev_warn(&adapter
->dev
->dev
,
274 "Product_info cmd failed with error: %d\n",
277 dma_unmap_single(&adapter
->dev
->dev
, prod_info_dma_handle
,
278 sizeof(mega_product_info
), DMA_FROM_DEVICE
);
283 * kernel scans the channels from 0 to <= max_channel
285 adapter
->host
->max_channel
=
286 adapter
->product_info
.nchannels
+ NVIRT_CHAN
-1;
288 adapter
->host
->max_id
= 16; /* max targets per channel */
290 adapter
->host
->max_lun
= 7; /* Up to 7 luns for non disk devices */
292 adapter
->host
->cmd_per_lun
= max_cmd_per_lun
;
294 adapter
->numldrv
= inquiry3
->num_ldrv
;
296 adapter
->max_cmds
= adapter
->product_info
.max_commands
;
298 if(adapter
->max_cmds
> MAX_COMMANDS
)
299 adapter
->max_cmds
= MAX_COMMANDS
;
301 adapter
->host
->can_queue
= adapter
->max_cmds
- 1;
304 * Get the maximum number of scatter-gather elements supported by this
307 mega_get_max_sgl(adapter
);
309 adapter
->host
->sg_tablesize
= adapter
->sglen
;
311 /* use HP firmware and bios version encoding
312 Note: fw_version[0|1] and bios_version[0|1] were originally shifted
313 right 8 bits making them zero. This 0 value was hardcoded to fix
315 if (adapter
->product_info
.subsysvid
== PCI_VENDOR_ID_HP
) {
316 snprintf(adapter
->fw_version
, sizeof(adapter
->fw_version
),
318 adapter
->product_info
.fw_version
[2],
320 adapter
->product_info
.fw_version
[1] & 0x0f,
322 adapter
->product_info
.fw_version
[0] & 0x0f);
323 snprintf(adapter
->bios_version
, sizeof(adapter
->fw_version
),
325 adapter
->product_info
.bios_version
[2],
327 adapter
->product_info
.bios_version
[1] & 0x0f,
329 adapter
->product_info
.bios_version
[0] & 0x0f);
331 memcpy(adapter
->fw_version
,
332 (char *)adapter
->product_info
.fw_version
, 4);
333 adapter
->fw_version
[4] = 0;
335 memcpy(adapter
->bios_version
,
336 (char *)adapter
->product_info
.bios_version
, 4);
338 adapter
->bios_version
[4] = 0;
341 dev_notice(&adapter
->dev
->dev
, "[%s:%s] detected %d logical drives\n",
342 adapter
->fw_version
, adapter
->bios_version
, adapter
->numldrv
);
345 * Do we support extended (>10 bytes) cdbs
347 adapter
->support_ext_cdb
= mega_support_ext_cdb(adapter
);
348 if (adapter
->support_ext_cdb
)
349 dev_notice(&adapter
->dev
->dev
, "supports extended CDBs\n");
357 * @adapter: pointer to our soft state
359 * Runs through the list of pending requests.
362 mega_runpendq(adapter_t
*adapter
)
364 if(!list_empty(&adapter
->pending_list
))
365 __mega_runpendq(adapter
);
370 * @scmd - Issue this scsi command
371 * @done - the callback hook into the scsi mid-layer
373 * The command queuing entry point for the mid-layer.
375 static int megaraid_queue_lck(struct scsi_cmnd
*scmd
)
382 adapter
= (adapter_t
*)scmd
->device
->host
->hostdata
;
385 * Allocate and build a SCB request
386 * busy flag will be set if mega_build_cmd() command could not
387 * allocate scb. We will return non-zero status in that case.
388 * NOTE: scb can be null even though certain commands completed
389 * successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would
390 * return 0 in that case.
393 spin_lock_irqsave(&adapter
->lock
, flags
);
394 scb
= mega_build_cmd(adapter
, scmd
, &busy
);
398 scb
->state
|= SCB_PENDQ
;
399 list_add_tail(&scb
->list
, &adapter
->pending_list
);
402 * Check if the HBA is in quiescent state, e.g., during a
403 * delete logical drive opertion. If it is, don't run
406 if (atomic_read(&adapter
->quiescent
) == 0)
407 mega_runpendq(adapter
);
411 spin_unlock_irqrestore(&adapter
->lock
, flags
);
415 static DEF_SCSI_QCMD(megaraid_queue
)
418 * mega_allocate_scb()
419 * @adapter: pointer to our soft state
420 * @cmd: scsi command from the mid-layer
422 * Allocate a SCB structure. This is the central structure for controller
425 static inline scb_t
*
426 mega_allocate_scb(adapter_t
*adapter
, struct scsi_cmnd
*cmd
)
428 struct list_head
*head
= &adapter
->free_list
;
431 /* Unlink command from Free List */
432 if( !list_empty(head
) ) {
434 scb
= list_entry(head
->next
, scb_t
, list
);
436 list_del_init(head
->next
);
438 scb
->state
= SCB_ACTIVE
;
440 scb
->dma_type
= MEGA_DMA_TYPE_NONE
;
449 * mega_get_ldrv_num()
450 * @adapter: pointer to our soft state
451 * @cmd: scsi mid layer command
452 * @channel: channel on the controller
454 * Calculate the logical drive number based on the information in scsi command
455 * and the channel number.
458 mega_get_ldrv_num(adapter_t
*adapter
, struct scsi_cmnd
*cmd
, int channel
)
463 tgt
= cmd
->device
->id
;
465 if ( tgt
> adapter
->this_id
)
466 tgt
--; /* we do not get inquires for initiator id */
468 ldrv_num
= (channel
* 15) + tgt
;
472 * If we have a logical drive with boot enabled, project it first
474 if( adapter
->boot_ldrv_enabled
) {
475 if( ldrv_num
== 0 ) {
476 ldrv_num
= adapter
->boot_ldrv
;
479 if( ldrv_num
<= adapter
->boot_ldrv
) {
486 * If "delete logical drive" feature is enabled on this controller.
487 * Do only if at least one delete logical drive operation was done.
489 * Also, after logical drive deletion, instead of logical drive number,
490 * the value returned should be 0x80+logical drive id.
492 * These is valid only for IO commands.
495 if (adapter
->support_random_del
&& adapter
->read_ldidmap
)
496 switch (cmd
->cmnd
[0]) {
509 * @adapter: pointer to our soft state
510 * @cmd: Prepare using this scsi command
511 * @busy: busy flag if no resources
513 * Prepares a command and scatter gather list for the controller. This routine
514 * also finds out if the commands is intended for a logical drive or a
515 * physical device and prepares the controller command accordingly.
517 * We also re-order the logical drives and physical devices based on their
521 mega_build_cmd(adapter_t
*adapter
, struct scsi_cmnd
*cmd
, int *busy
)
523 mega_passthru
*pthru
;
531 int ldrv_num
= 0; /* logical drive number */
534 * We know what channels our logical drives are on - mega_find_card()
536 islogical
= adapter
->logdrv_chan
[cmd
->device
->channel
];
539 * The theory: If physical drive is chosen for boot, all the physical
540 * devices are exported before the logical drives, otherwise physical
541 * devices are pushed after logical drives, in which case - Kernel sees
542 * the physical devices on virtual channel which is obviously converted
543 * to actual channel on the HBA.
545 if( adapter
->boot_pdrv_enabled
) {
547 /* logical channel */
548 channel
= cmd
->device
->channel
-
549 adapter
->product_info
.nchannels
;
552 /* this is physical channel */
553 channel
= cmd
->device
->channel
;
554 target
= cmd
->device
->id
;
557 * boot from a physical disk, that disk needs to be
558 * exposed first IF both the channels are SCSI, then
559 * booting from the second channel is not allowed.
562 target
= adapter
->boot_pdrv_tgt
;
564 else if( target
== adapter
->boot_pdrv_tgt
) {
571 /* this is the logical channel */
572 channel
= cmd
->device
->channel
;
575 /* physical channel */
576 channel
= cmd
->device
->channel
- NVIRT_CHAN
;
577 target
= cmd
->device
->id
;
584 /* have just LUN 0 for each target on virtual channels */
585 if (cmd
->device
->lun
) {
586 cmd
->result
= (DID_BAD_TARGET
<< 16);
591 ldrv_num
= mega_get_ldrv_num(adapter
, cmd
, channel
);
594 max_ldrv_num
= (adapter
->flag
& BOARD_40LD
) ?
595 MAX_LOGICAL_DRIVES_40LD
: MAX_LOGICAL_DRIVES_8LD
;
598 * max_ldrv_num increases by 0x80 if some logical drive was
601 if(adapter
->read_ldidmap
)
602 max_ldrv_num
+= 0x80;
604 if(ldrv_num
> max_ldrv_num
) {
605 cmd
->result
= (DID_BAD_TARGET
<< 16);
612 if( cmd
->device
->lun
> 7) {
614 * Do not support lun >7 for physically accessed
617 cmd
->result
= (DID_BAD_TARGET
<< 16);
625 * Logical drive commands
629 switch (cmd
->cmnd
[0]) {
630 case TEST_UNIT_READY
:
631 #if MEGA_HAVE_CLUSTERING
633 * Do we support clustering and is the support enabled
634 * If no, return success always
636 if( !adapter
->has_cluster
) {
637 cmd
->result
= (DID_OK
<< 16);
642 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
647 scb
->raw_mbox
[0] = MEGA_CLUSTER_CMD
;
648 scb
->raw_mbox
[2] = MEGA_RESERVATION_STATUS
;
649 scb
->raw_mbox
[3] = ldrv_num
;
651 scb
->dma_direction
= DMA_NONE
;
655 cmd
->result
= (DID_OK
<< 16);
662 struct scatterlist
*sg
;
664 sg
= scsi_sglist(cmd
);
665 buf
= kmap_atomic(sg_page(sg
)) + sg
->offset
;
667 memset(buf
, 0, cmd
->cmnd
[4]);
668 kunmap_atomic(buf
- sg
->offset
);
670 cmd
->result
= (DID_OK
<< 16);
678 if(!(adapter
->flag
& (1L << cmd
->device
->channel
))) {
680 dev_notice(&adapter
->dev
->dev
,
681 "scsi%d: scanning scsi channel %d "
682 "for logical drives\n",
683 adapter
->host
->host_no
,
684 cmd
->device
->channel
);
686 adapter
->flag
|= (1L << cmd
->device
->channel
);
689 /* Allocate a SCB and initialize passthru */
690 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
696 mbox
= (mbox_t
*)scb
->raw_mbox
;
697 memset(mbox
, 0, sizeof(scb
->raw_mbox
));
698 memset(pthru
, 0, sizeof(mega_passthru
));
702 pthru
->reqsenselen
= 14;
703 pthru
->islogical
= 1;
704 pthru
->logdrv
= ldrv_num
;
705 pthru
->cdblen
= cmd
->cmd_len
;
706 memcpy(pthru
->cdb
, cmd
->cmnd
, cmd
->cmd_len
);
708 if( adapter
->has_64bit_addr
) {
709 mbox
->m_out
.cmd
= MEGA_MBOXCMD_PASSTHRU64
;
712 mbox
->m_out
.cmd
= MEGA_MBOXCMD_PASSTHRU
;
715 scb
->dma_direction
= DMA_FROM_DEVICE
;
717 pthru
->numsgelements
= mega_build_sglist(adapter
, scb
,
718 &pthru
->dataxferaddr
, &pthru
->dataxferlen
);
720 mbox
->m_out
.xferaddr
= scb
->pthru_dma_addr
;
731 /* Allocate a SCB and initialize mailbox */
732 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
736 mbox
= (mbox_t
*)scb
->raw_mbox
;
738 memset(mbox
, 0, sizeof(scb
->raw_mbox
));
739 mbox
->m_out
.logdrv
= ldrv_num
;
742 * A little hack: 2nd bit is zero for all scsi read
743 * commands and is set for all scsi write commands
745 if( adapter
->has_64bit_addr
) {
746 mbox
->m_out
.cmd
= (*cmd
->cmnd
& 0x02) ?
747 MEGA_MBOXCMD_LWRITE64
:
748 MEGA_MBOXCMD_LREAD64
;
751 mbox
->m_out
.cmd
= (*cmd
->cmnd
& 0x02) ?
757 * 6-byte READ(0x08) or WRITE(0x0A) cdb
759 if( cmd
->cmd_len
== 6 ) {
760 mbox
->m_out
.numsectors
= (u32
) cmd
->cmnd
[4];
762 ((u32
)cmd
->cmnd
[1] << 16) |
763 ((u32
)cmd
->cmnd
[2] << 8) |
766 mbox
->m_out
.lba
&= 0x1FFFFF;
770 * Take modulo 0x80, since the logical drive
771 * number increases by 0x80 when a logical
774 if (*cmd
->cmnd
== READ_6
) {
775 adapter
->nreads
[ldrv_num
%0x80]++;
776 adapter
->nreadblocks
[ldrv_num
%0x80] +=
777 mbox
->m_out
.numsectors
;
779 adapter
->nwrites
[ldrv_num
%0x80]++;
780 adapter
->nwriteblocks
[ldrv_num
%0x80] +=
781 mbox
->m_out
.numsectors
;
787 * 10-byte READ(0x28) or WRITE(0x2A) cdb
789 if( cmd
->cmd_len
== 10 ) {
790 mbox
->m_out
.numsectors
=
792 ((u32
)cmd
->cmnd
[7] << 8);
794 ((u32
)cmd
->cmnd
[2] << 24) |
795 ((u32
)cmd
->cmnd
[3] << 16) |
796 ((u32
)cmd
->cmnd
[4] << 8) |
800 if (*cmd
->cmnd
== READ_10
) {
801 adapter
->nreads
[ldrv_num
%0x80]++;
802 adapter
->nreadblocks
[ldrv_num
%0x80] +=
803 mbox
->m_out
.numsectors
;
805 adapter
->nwrites
[ldrv_num
%0x80]++;
806 adapter
->nwriteblocks
[ldrv_num
%0x80] +=
807 mbox
->m_out
.numsectors
;
813 * 12-byte READ(0xA8) or WRITE(0xAA) cdb
815 if( cmd
->cmd_len
== 12 ) {
817 ((u32
)cmd
->cmnd
[2] << 24) |
818 ((u32
)cmd
->cmnd
[3] << 16) |
819 ((u32
)cmd
->cmnd
[4] << 8) |
822 mbox
->m_out
.numsectors
=
823 ((u32
)cmd
->cmnd
[6] << 24) |
824 ((u32
)cmd
->cmnd
[7] << 16) |
825 ((u32
)cmd
->cmnd
[8] << 8) |
829 if (*cmd
->cmnd
== READ_12
) {
830 adapter
->nreads
[ldrv_num
%0x80]++;
831 adapter
->nreadblocks
[ldrv_num
%0x80] +=
832 mbox
->m_out
.numsectors
;
834 adapter
->nwrites
[ldrv_num
%0x80]++;
835 adapter
->nwriteblocks
[ldrv_num
%0x80] +=
836 mbox
->m_out
.numsectors
;
842 * If it is a read command
844 if( (*cmd
->cmnd
& 0x0F) == 0x08 ) {
845 scb
->dma_direction
= DMA_FROM_DEVICE
;
848 scb
->dma_direction
= DMA_TO_DEVICE
;
851 /* Calculate Scatter-Gather info */
852 mbox
->m_out
.numsgelements
= mega_build_sglist(adapter
, scb
,
853 (u32
*)&mbox
->m_out
.xferaddr
, &seg
);
857 #if MEGA_HAVE_CLUSTERING
862 * Do we support clustering and is the support enabled
864 if( ! adapter
->has_cluster
) {
866 cmd
->result
= (DID_BAD_TARGET
<< 16);
871 /* Allocate a SCB and initialize mailbox */
872 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
877 scb
->raw_mbox
[0] = MEGA_CLUSTER_CMD
;
878 scb
->raw_mbox
[2] = ( *cmd
->cmnd
== RESERVE
) ?
879 MEGA_RESERVE_LD
: MEGA_RELEASE_LD
;
881 scb
->raw_mbox
[3] = ldrv_num
;
883 scb
->dma_direction
= DMA_NONE
;
889 cmd
->result
= (DID_BAD_TARGET
<< 16);
896 * Passthru drive commands
899 /* Allocate a SCB and initialize passthru */
900 if(!(scb
= mega_allocate_scb(adapter
, cmd
))) {
905 mbox
= (mbox_t
*)scb
->raw_mbox
;
906 memset(mbox
, 0, sizeof(scb
->raw_mbox
));
908 if( adapter
->support_ext_cdb
) {
910 mega_prepare_extpassthru(adapter
, scb
, cmd
,
913 mbox
->m_out
.cmd
= MEGA_MBOXCMD_EXTPTHRU
;
915 mbox
->m_out
.xferaddr
= scb
->epthru_dma_addr
;
920 pthru
= mega_prepare_passthru(adapter
, scb
, cmd
,
923 /* Initialize mailbox */
924 if( adapter
->has_64bit_addr
) {
925 mbox
->m_out
.cmd
= MEGA_MBOXCMD_PASSTHRU64
;
928 mbox
->m_out
.cmd
= MEGA_MBOXCMD_PASSTHRU
;
931 mbox
->m_out
.xferaddr
= scb
->pthru_dma_addr
;
941 * mega_prepare_passthru()
942 * @adapter: pointer to our soft state
943 * @scb: our scsi control block
944 * @cmd: scsi command from the mid-layer
945 * @channel: actual channel on the controller
946 * @target: actual id on the controller.
948 * prepare a command for the scsi physical devices.
950 static mega_passthru
*
951 mega_prepare_passthru(adapter_t
*adapter
, scb_t
*scb
, struct scsi_cmnd
*cmd
,
952 int channel
, int target
)
954 mega_passthru
*pthru
;
957 memset(pthru
, 0, sizeof (mega_passthru
));
959 /* 0=6sec/1=60sec/2=10min/3=3hrs */
963 pthru
->reqsenselen
= 14;
964 pthru
->islogical
= 0;
966 pthru
->channel
= (adapter
->flag
& BOARD_40LD
) ? 0 : channel
;
968 pthru
->target
= (adapter
->flag
& BOARD_40LD
) ?
969 (channel
<< 4) | target
: target
;
971 pthru
->cdblen
= cmd
->cmd_len
;
972 pthru
->logdrv
= cmd
->device
->lun
;
974 memcpy(pthru
->cdb
, cmd
->cmnd
, cmd
->cmd_len
);
976 /* Not sure about the direction */
977 scb
->dma_direction
= DMA_BIDIRECTIONAL
;
979 /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */
980 switch (cmd
->cmnd
[0]) {
983 if(!(adapter
->flag
& (1L << cmd
->device
->channel
))) {
985 dev_notice(&adapter
->dev
->dev
,
986 "scsi%d: scanning scsi channel %d [P%d] "
987 "for physical devices\n",
988 adapter
->host
->host_no
,
989 cmd
->device
->channel
, channel
);
991 adapter
->flag
|= (1L << cmd
->device
->channel
);
995 pthru
->numsgelements
= mega_build_sglist(adapter
, scb
,
996 &pthru
->dataxferaddr
, &pthru
->dataxferlen
);
1004 * mega_prepare_extpassthru()
1005 * @adapter: pointer to our soft state
1006 * @scb: our scsi control block
1007 * @cmd: scsi command from the mid-layer
1008 * @channel: actual channel on the controller
1009 * @target: actual id on the controller.
1011 * prepare a command for the scsi physical devices. This rountine prepares
1012 * commands for devices which can take extended CDBs (>10 bytes)
1014 static mega_ext_passthru
*
1015 mega_prepare_extpassthru(adapter_t
*adapter
, scb_t
*scb
,
1016 struct scsi_cmnd
*cmd
,
1017 int channel
, int target
)
1019 mega_ext_passthru
*epthru
;
1021 epthru
= scb
->epthru
;
1022 memset(epthru
, 0, sizeof(mega_ext_passthru
));
1024 /* 0=6sec/1=60sec/2=10min/3=3hrs */
1025 epthru
->timeout
= 2;
1028 epthru
->reqsenselen
= 14;
1029 epthru
->islogical
= 0;
1031 epthru
->channel
= (adapter
->flag
& BOARD_40LD
) ? 0 : channel
;
1032 epthru
->target
= (adapter
->flag
& BOARD_40LD
) ?
1033 (channel
<< 4) | target
: target
;
1035 epthru
->cdblen
= cmd
->cmd_len
;
1036 epthru
->logdrv
= cmd
->device
->lun
;
1038 memcpy(epthru
->cdb
, cmd
->cmnd
, cmd
->cmd_len
);
1040 /* Not sure about the direction */
1041 scb
->dma_direction
= DMA_BIDIRECTIONAL
;
1043 switch(cmd
->cmnd
[0]) {
1046 if(!(adapter
->flag
& (1L << cmd
->device
->channel
))) {
1048 dev_notice(&adapter
->dev
->dev
,
1049 "scsi%d: scanning scsi channel %d [P%d] "
1050 "for physical devices\n",
1051 adapter
->host
->host_no
,
1052 cmd
->device
->channel
, channel
);
1054 adapter
->flag
|= (1L << cmd
->device
->channel
);
1058 epthru
->numsgelements
= mega_build_sglist(adapter
, scb
,
1059 &epthru
->dataxferaddr
, &epthru
->dataxferlen
);
1067 __mega_runpendq(adapter_t
*adapter
)
1070 struct list_head
*pos
, *next
;
1072 /* Issue any pending commands to the card */
1073 list_for_each_safe(pos
, next
, &adapter
->pending_list
) {
1075 scb
= list_entry(pos
, scb_t
, list
);
1077 if( !(scb
->state
& SCB_ISSUED
) ) {
1079 if( issue_scb(adapter
, scb
) != 0 )
1090 * @adapter: pointer to our soft state
1091 * @scb: scsi control block
1093 * Post a command to the card if the mailbox is available, otherwise return
1094 * busy. We also take the scb from the pending list if the mailbox is
1098 issue_scb(adapter_t
*adapter
, scb_t
*scb
)
1100 volatile mbox64_t
*mbox64
= adapter
->mbox64
;
1101 volatile mbox_t
*mbox
= adapter
->mbox
;
1104 if(unlikely(mbox
->m_in
.busy
)) {
1108 } while( mbox
->m_in
.busy
&& (i
< max_mbox_busy_wait
) );
1110 if(mbox
->m_in
.busy
) return -1;
1113 /* Copy mailbox data into host structure */
1114 memcpy((char *)&mbox
->m_out
, (char *)scb
->raw_mbox
,
1115 sizeof(struct mbox_out
));
1117 mbox
->m_out
.cmdid
= scb
->idx
; /* Set cmdid */
1118 mbox
->m_in
.busy
= 1; /* Set busy */
1122 * Increment the pending queue counter
1124 atomic_inc(&adapter
->pend_cmds
);
1126 switch (mbox
->m_out
.cmd
) {
1127 case MEGA_MBOXCMD_LREAD64
:
1128 case MEGA_MBOXCMD_LWRITE64
:
1129 case MEGA_MBOXCMD_PASSTHRU64
:
1130 case MEGA_MBOXCMD_EXTPTHRU
:
1131 mbox64
->xfer_segment_lo
= mbox
->m_out
.xferaddr
;
1132 mbox64
->xfer_segment_hi
= 0;
1133 mbox
->m_out
.xferaddr
= 0xFFFFFFFF;
1136 mbox64
->xfer_segment_lo
= 0;
1137 mbox64
->xfer_segment_hi
= 0;
1143 scb
->state
|= SCB_ISSUED
;
1145 if( likely(adapter
->flag
& BOARD_MEMMAP
) ) {
1146 mbox
->m_in
.poll
= 0;
1148 WRINDOOR(adapter
, adapter
->mbox_dma
| 0x1);
1151 irq_enable(adapter
);
1152 issue_command(adapter
);
1159 * Wait until the controller's mailbox is available
1162 mega_busywait_mbox (adapter_t
*adapter
)
1164 if (adapter
->mbox
->m_in
.busy
)
1165 return __mega_busywait_mbox(adapter
);
1171 * @adapter: pointer to our soft state
1172 * @raw_mbox: the mailbox
1174 * Issue a scb in synchronous and non-interrupt mode
1177 issue_scb_block(adapter_t
*adapter
, u_char
*raw_mbox
)
1179 volatile mbox64_t
*mbox64
= adapter
->mbox64
;
1180 volatile mbox_t
*mbox
= adapter
->mbox
;
1183 /* Wait until mailbox is free */
1184 if(mega_busywait_mbox (adapter
))
1185 goto bug_blocked_mailbox
;
1187 /* Copy mailbox data into host structure */
1188 memcpy((char *) mbox
, raw_mbox
, sizeof(struct mbox_out
));
1189 mbox
->m_out
.cmdid
= 0xFE;
1190 mbox
->m_in
.busy
= 1;
1192 switch (raw_mbox
[0]) {
1193 case MEGA_MBOXCMD_LREAD64
:
1194 case MEGA_MBOXCMD_LWRITE64
:
1195 case MEGA_MBOXCMD_PASSTHRU64
:
1196 case MEGA_MBOXCMD_EXTPTHRU
:
1197 mbox64
->xfer_segment_lo
= mbox
->m_out
.xferaddr
;
1198 mbox64
->xfer_segment_hi
= 0;
1199 mbox
->m_out
.xferaddr
= 0xFFFFFFFF;
1202 mbox64
->xfer_segment_lo
= 0;
1203 mbox64
->xfer_segment_hi
= 0;
1206 if( likely(adapter
->flag
& BOARD_MEMMAP
) ) {
1207 mbox
->m_in
.poll
= 0;
1209 mbox
->m_in
.numstatus
= 0xFF;
1210 mbox
->m_in
.status
= 0xFF;
1211 WRINDOOR(adapter
, adapter
->mbox_dma
| 0x1);
1213 while((volatile u8
)mbox
->m_in
.numstatus
== 0xFF)
1216 mbox
->m_in
.numstatus
= 0xFF;
1218 while( (volatile u8
)mbox
->m_in
.poll
!= 0x77 )
1221 mbox
->m_in
.poll
= 0;
1222 mbox
->m_in
.ack
= 0x77;
1224 WRINDOOR(adapter
, adapter
->mbox_dma
| 0x2);
1226 while(RDINDOOR(adapter
) & 0x2)
1230 irq_disable(adapter
);
1231 issue_command(adapter
);
1233 while (!((byte
= irq_state(adapter
)) & INTR_VALID
))
1236 set_irq_state(adapter
, byte
);
1237 irq_enable(adapter
);
1241 return mbox
->m_in
.status
;
1243 bug_blocked_mailbox
:
1244 dev_warn(&adapter
->dev
->dev
, "Blocked mailbox......!!\n");
1251 * megaraid_isr_iomapped()
1253 * @devp: pointer to our soft state
1255 * Interrupt service routine for io-mapped controllers.
1256 * Find out if our device is interrupting. If yes, acknowledge the interrupt
1257 * and service the completed commands.
1260 megaraid_isr_iomapped(int irq
, void *devp
)
1262 adapter_t
*adapter
= devp
;
1263 unsigned long flags
;
1266 u8 completed
[MAX_FIRMWARE_STATUS
];
1272 * loop till F/W has more commands for us to complete.
1274 spin_lock_irqsave(&adapter
->lock
, flags
);
1277 /* Check if a valid interrupt is pending */
1278 byte
= irq_state(adapter
);
1279 if( (byte
& VALID_INTR_BYTE
) == 0 ) {
1281 * No more pending commands
1285 set_irq_state(adapter
, byte
);
1287 while((nstatus
= (volatile u8
)adapter
->mbox
->m_in
.numstatus
)
1290 adapter
->mbox
->m_in
.numstatus
= 0xFF;
1292 status
= adapter
->mbox
->m_in
.status
;
1295 * decrement the pending queue counter
1297 atomic_sub(nstatus
, &adapter
->pend_cmds
);
1299 memcpy(completed
, (void *)adapter
->mbox
->m_in
.completed
,
1302 /* Acknowledge interrupt */
1305 mega_cmd_done(adapter
, completed
, nstatus
, status
);
1307 mega_rundoneq(adapter
);
1311 /* Loop through any pending requests */
1312 if(atomic_read(&adapter
->quiescent
) == 0) {
1313 mega_runpendq(adapter
);
1320 spin_unlock_irqrestore(&adapter
->lock
, flags
);
1322 return IRQ_RETVAL(handled
);
1327 * megaraid_isr_memmapped()
1329 * @devp: pointer to our soft state
1331 * Interrupt service routine for memory-mapped controllers.
1332 * Find out if our device is interrupting. If yes, acknowledge the interrupt
1333 * and service the completed commands.
1336 megaraid_isr_memmapped(int irq
, void *devp
)
1338 adapter_t
*adapter
= devp
;
1339 unsigned long flags
;
1343 u8 completed
[MAX_FIRMWARE_STATUS
];
1348 * loop till F/W has more commands for us to complete.
1350 spin_lock_irqsave(&adapter
->lock
, flags
);
1353 /* Check if a valid interrupt is pending */
1354 dword
= RDOUTDOOR(adapter
);
1355 if(dword
!= 0x10001234) {
1357 * No more pending commands
1361 WROUTDOOR(adapter
, 0x10001234);
1363 while((nstatus
= (volatile u8
)adapter
->mbox
->m_in
.numstatus
)
1367 adapter
->mbox
->m_in
.numstatus
= 0xFF;
1369 status
= adapter
->mbox
->m_in
.status
;
1372 * decrement the pending queue counter
1374 atomic_sub(nstatus
, &adapter
->pend_cmds
);
1376 memcpy(completed
, (void *)adapter
->mbox
->m_in
.completed
,
1379 /* Acknowledge interrupt */
1380 WRINDOOR(adapter
, 0x2);
1384 while( RDINDOOR(adapter
) & 0x02 )
1387 mega_cmd_done(adapter
, completed
, nstatus
, status
);
1389 mega_rundoneq(adapter
);
1391 /* Loop through any pending requests */
1392 if(atomic_read(&adapter
->quiescent
) == 0) {
1393 mega_runpendq(adapter
);
1400 spin_unlock_irqrestore(&adapter
->lock
, flags
);
1402 return IRQ_RETVAL(handled
);
1406 * @adapter: pointer to our soft state
1407 * @completed: array of ids of completed commands
1408 * @nstatus: number of completed commands
1409 * @status: status of the last command completed
1411 * Complete the commands and call the scsi mid-layer callback hooks.
1414 mega_cmd_done(adapter_t
*adapter
, u8 completed
[], int nstatus
, int status
)
1416 mega_ext_passthru
*epthru
= NULL
;
1417 struct scatterlist
*sgl
;
1418 struct scsi_cmnd
*cmd
= NULL
;
1419 mega_passthru
*pthru
= NULL
;
1420 mbox_t
*mbox
= NULL
;
1428 * for all the commands completed, call the mid-layer callback routine
1431 for( i
= 0; i
< nstatus
; i
++ ) {
1433 cmdid
= completed
[i
];
1436 * Only free SCBs for the commands coming down from the
1437 * mid-layer, not for which were issued internally
1439 * For internal command, restore the status returned by the
1440 * firmware so that user can interpret it.
1442 if (cmdid
== CMDID_INT_CMDS
) {
1443 scb
= &adapter
->int_scb
;
1446 list_del_init(&scb
->list
);
1447 scb
->state
= SCB_FREE
;
1449 adapter
->int_status
= status
;
1450 complete(&adapter
->int_waitq
);
1452 scb
= &adapter
->scb_list
[cmdid
];
1455 * Make sure f/w has completed a valid command
1457 if( !(scb
->state
& SCB_ISSUED
) || scb
->cmd
== NULL
) {
1458 dev_crit(&adapter
->dev
->dev
, "invalid command "
1459 "Id %d, scb->state:%x, scsi cmd:%p\n",
1460 cmdid
, scb
->state
, scb
->cmd
);
1466 * Was a abort issued for this command
1468 if( scb
->state
& SCB_ABORT
) {
1470 dev_warn(&adapter
->dev
->dev
,
1471 "aborted cmd [%x] complete\n",
1474 scb
->cmd
->result
= (DID_ABORT
<< 16);
1476 list_add_tail(SCSI_LIST(scb
->cmd
),
1477 &adapter
->completed_list
);
1479 mega_free_scb(adapter
, scb
);
1485 * Was a reset issued for this command
1487 if( scb
->state
& SCB_RESET
) {
1489 dev_warn(&adapter
->dev
->dev
,
1490 "reset cmd [%x] complete\n",
1493 scb
->cmd
->result
= (DID_RESET
<< 16);
1495 list_add_tail(SCSI_LIST(scb
->cmd
),
1496 &adapter
->completed_list
);
1498 mega_free_scb (adapter
, scb
);
1505 epthru
= scb
->epthru
;
1506 mbox
= (mbox_t
*)scb
->raw_mbox
;
1511 int logdrv
= mbox
->m_out
.logdrv
;
1513 islogical
= adapter
->logdrv_chan
[cmd
->channel
];
1515 * Maintain an error counter for the logical drive.
1516 * Some application like SNMP agent need such
1519 if( status
&& islogical
&& (cmd
->cmnd
[0] == READ_6
||
1520 cmd
->cmnd
[0] == READ_10
||
1521 cmd
->cmnd
[0] == READ_12
)) {
1523 * Logical drive number increases by 0x80 when
1524 * a logical drive is deleted
1526 adapter
->rd_errors
[logdrv
%0x80]++;
1529 if( status
&& islogical
&& (cmd
->cmnd
[0] == WRITE_6
||
1530 cmd
->cmnd
[0] == WRITE_10
||
1531 cmd
->cmnd
[0] == WRITE_12
)) {
1533 * Logical drive number increases by 0x80 when
1534 * a logical drive is deleted
1536 adapter
->wr_errors
[logdrv
%0x80]++;
1544 * Do not return the presence of hard disk on the channel so,
1545 * inquiry sent, and returned data==hard disk or removable
1546 * hard disk and not logical, request should return failure! -
1549 islogical
= adapter
->logdrv_chan
[cmd
->device
->channel
];
1550 if( cmd
->cmnd
[0] == INQUIRY
&& !islogical
) {
1552 sgl
= scsi_sglist(cmd
);
1553 if( sg_page(sgl
) ) {
1554 c
= *(unsigned char *) sg_virt(&sgl
[0]);
1556 dev_warn(&adapter
->dev
->dev
, "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
= SAM_STAT_CHECK_CONDITION
;
1588 if (mbox
->m_out
.cmd
== MEGA_MBOXCMD_EXTPTHRU
) {
1590 memcpy(cmd
->sense_buffer
,
1591 epthru
->reqsensearea
, 14);
1593 cmd
->result
= SAM_STAT_CHECK_CONDITION
;
1595 scsi_build_sense(cmd
, 0,
1596 ABORTED_COMMAND
, 0, 0);
1600 case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e.
1602 cmd
->result
|= (DID_BUS_BUSY
<< 16) | status
;
1606 #if MEGA_HAVE_CLUSTERING
1608 * If TEST_UNIT_READY fails, we know
1609 * MEGA_RESERVATION_STATUS failed
1611 if( cmd
->cmnd
[0] == TEST_UNIT_READY
) {
1612 cmd
->result
|= (DID_ERROR
<< 16) |
1613 SAM_STAT_RESERVATION_CONFLICT
;
1617 * Error code returned is 1 if Reserve or Release
1618 * failed or the input parameter is invalid
1621 (cmd
->cmnd
[0] == RESERVE
||
1622 cmd
->cmnd
[0] == RELEASE
) ) {
1624 cmd
->result
|= (DID_ERROR
<< 16) |
1625 SAM_STAT_RESERVATION_CONFLICT
;
1629 cmd
->result
|= (DID_BAD_TARGET
<< 16)|status
;
1632 mega_free_scb(adapter
, scb
);
1634 /* Add Scsi_Command to end of completed queue */
1635 list_add_tail(SCSI_LIST(cmd
), &adapter
->completed_list
);
1643 * Run through the list of completed requests and finish it
1646 mega_rundoneq (adapter_t
*adapter
)
1648 struct megaraid_cmd_priv
*cmd_priv
;
1650 list_for_each_entry(cmd_priv
, &adapter
->completed_list
, entry
)
1651 scsi_done(megaraid_to_scsi_cmd(cmd_priv
));
1653 INIT_LIST_HEAD(&adapter
->completed_list
);
1658 * Free a SCB structure
1659 * Note: We assume the scsi commands associated with this scb is not free yet.
1662 mega_free_scb(adapter_t
*adapter
, scb_t
*scb
)
1664 switch( scb
->dma_type
) {
1666 case MEGA_DMA_TYPE_NONE
:
1670 scsi_dma_unmap(scb
->cmd
);
1677 * Remove from the pending list
1679 list_del_init(&scb
->list
);
1681 /* Link the scb back into free list */
1682 scb
->state
= SCB_FREE
;
1685 list_add(&scb
->list
, &adapter
->free_list
);
1690 __mega_busywait_mbox (adapter_t
*adapter
)
1692 volatile mbox_t
*mbox
= adapter
->mbox
;
1695 for (counter
= 0; counter
< 10000; counter
++) {
1696 if (!mbox
->m_in
.busy
)
1701 return -1; /* give up after 1 second */
1705 * Copies data to SGLIST
1706 * Note: For 64 bit cards, we need a minimum of one SG element for read/write
1709 mega_build_sglist(adapter_t
*adapter
, scb_t
*scb
, u32
*buf
, u32
*len
)
1711 struct scatterlist
*sg
;
1712 struct scsi_cmnd
*cmd
;
1719 * Copy Scatter-Gather list info into controller structure.
1721 * The number of sg elements returned must not exceed our limit
1723 sgcnt
= scsi_dma_map(cmd
);
1725 scb
->dma_type
= MEGA_SGLIST
;
1727 BUG_ON(sgcnt
> adapter
->sglen
|| sgcnt
< 0);
1731 if (scsi_sg_count(cmd
) == 1 && !adapter
->has_64bit_addr
) {
1732 sg
= scsi_sglist(cmd
);
1733 scb
->dma_h_bulkdata
= sg_dma_address(sg
);
1734 *buf
= (u32
)scb
->dma_h_bulkdata
;
1735 *len
= sg_dma_len(sg
);
1739 scsi_for_each_sg(cmd
, sg
, sgcnt
, idx
) {
1740 if (adapter
->has_64bit_addr
) {
1741 scb
->sgl64
[idx
].address
= sg_dma_address(sg
);
1742 *len
+= scb
->sgl64
[idx
].length
= sg_dma_len(sg
);
1744 scb
->sgl
[idx
].address
= sg_dma_address(sg
);
1745 *len
+= scb
->sgl
[idx
].length
= sg_dma_len(sg
);
1749 /* Reset pointer and length fields */
1750 *buf
= scb
->sgl_dma_addr
;
1752 /* Return count of SG requests */
1760 * takes all info in AdapterInquiry structure and puts it into ProductInfo and
1761 * Enquiry3 structures for later use
1764 mega_8_to_40ld(mraid_inquiry
*inquiry
, mega_inquiry3
*enquiry3
,
1765 mega_product_info
*product_info
)
1769 product_info
->max_commands
= inquiry
->adapter_info
.max_commands
;
1770 enquiry3
->rebuild_rate
= inquiry
->adapter_info
.rebuild_rate
;
1771 product_info
->nchannels
= inquiry
->adapter_info
.nchannels
;
1773 for (i
= 0; i
< 4; i
++) {
1774 product_info
->fw_version
[i
] =
1775 inquiry
->adapter_info
.fw_version
[i
];
1777 product_info
->bios_version
[i
] =
1778 inquiry
->adapter_info
.bios_version
[i
];
1780 enquiry3
->cache_flush_interval
=
1781 inquiry
->adapter_info
.cache_flush_interval
;
1783 product_info
->dram_size
= inquiry
->adapter_info
.dram_size
;
1785 enquiry3
->num_ldrv
= inquiry
->logdrv_info
.num_ldrv
;
1787 for (i
= 0; i
< MAX_LOGICAL_DRIVES_8LD
; i
++) {
1788 enquiry3
->ldrv_size
[i
] = inquiry
->logdrv_info
.ldrv_size
[i
];
1789 enquiry3
->ldrv_prop
[i
] = inquiry
->logdrv_info
.ldrv_prop
[i
];
1790 enquiry3
->ldrv_state
[i
] = inquiry
->logdrv_info
.ldrv_state
[i
];
1793 for (i
= 0; i
< (MAX_PHYSICAL_DRIVES
); i
++)
1794 enquiry3
->pdrv_state
[i
] = inquiry
->pdrv_info
.pdrv_state
[i
];
1798 mega_free_sgl(adapter_t
*adapter
)
1803 for(i
= 0; i
< adapter
->max_cmds
; i
++) {
1805 scb
= &adapter
->scb_list
[i
];
1808 dma_free_coherent(&adapter
->dev
->dev
,
1809 sizeof(mega_sgl64
) * adapter
->sglen
,
1810 scb
->sgl64
, scb
->sgl_dma_addr
);
1816 dma_free_coherent(&adapter
->dev
->dev
,
1817 sizeof(mega_passthru
), scb
->pthru
,
1818 scb
->pthru_dma_addr
);
1824 dma_free_coherent(&adapter
->dev
->dev
,
1825 sizeof(mega_ext_passthru
),
1826 scb
->epthru
, scb
->epthru_dma_addr
);
1836 * Get information about the card/driver
1839 megaraid_info(struct Scsi_Host
*host
)
1841 static char buffer
[512];
1844 adapter
= (adapter_t
*)host
->hostdata
;
1847 "LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns",
1848 adapter
->fw_version
, adapter
->product_info
.max_commands
,
1849 adapter
->host
->max_id
, adapter
->host
->max_channel
,
1850 (u32
)adapter
->host
->max_lun
);
1855 * Abort a previous SCSI request. Only commands on the pending list can be
1856 * aborted. All the commands issued to the F/W must complete.
1859 megaraid_abort(struct scsi_cmnd
*cmd
)
1864 adapter
= (adapter_t
*)cmd
->device
->host
->hostdata
;
1866 rval
= megaraid_abort_and_reset(adapter
, cmd
, SCB_ABORT
);
1869 * This is required here to complete any completed requests
1870 * to be communicated over to the mid layer.
1872 mega_rundoneq(adapter
);
1879 megaraid_reset(struct scsi_cmnd
*cmd
)
1885 adapter
= (adapter_t
*)cmd
->device
->host
->hostdata
;
1887 #if MEGA_HAVE_CLUSTERING
1888 mc
.cmd
= MEGA_CLUSTER_CMD
;
1889 mc
.opcode
= MEGA_RESET_RESERVATIONS
;
1891 if( mega_internal_command(adapter
, &mc
, NULL
) != 0 ) {
1892 dev_warn(&adapter
->dev
->dev
, "reservation reset failed\n");
1895 dev_info(&adapter
->dev
->dev
, "reservation reset\n");
1899 spin_lock_irq(&adapter
->lock
);
1901 rval
= megaraid_abort_and_reset(adapter
, NULL
, SCB_RESET
);
1904 * This is required here to complete any completed requests
1905 * to be communicated over to the mid layer.
1907 mega_rundoneq(adapter
);
1908 spin_unlock_irq(&adapter
->lock
);
1914 * megaraid_abort_and_reset()
1915 * @adapter: megaraid soft state
1916 * @cmd: scsi command to be aborted or reset
1917 * @aor: abort or reset flag
1919 * Try to locate the scsi command in the pending queue. If found and is not
1920 * issued to the controller, abort/reset it. Otherwise return failure
1923 megaraid_abort_and_reset(adapter_t
*adapter
, struct scsi_cmnd
*cmd
, int aor
)
1925 struct list_head
*pos
, *next
;
1928 if (aor
== SCB_ABORT
)
1929 dev_warn(&adapter
->dev
->dev
,
1930 "ABORTING cmd=%x <c=%d t=%d l=%d>\n",
1931 cmd
->cmnd
[0], cmd
->device
->channel
,
1932 cmd
->device
->id
, (u32
)cmd
->device
->lun
);
1934 dev_warn(&adapter
->dev
->dev
, "RESETTING\n");
1936 if(list_empty(&adapter
->pending_list
))
1939 list_for_each_safe(pos
, next
, &adapter
->pending_list
) {
1941 scb
= list_entry(pos
, scb_t
, list
);
1943 if (!cmd
|| scb
->cmd
== cmd
) { /* Found command */
1948 * Check if this command has firmware ownership. If
1949 * yes, we cannot reset this command. Whenever f/w
1950 * completes this command, we will return appropriate
1953 if( scb
->state
& SCB_ISSUED
) {
1955 dev_warn(&adapter
->dev
->dev
,
1956 "%s[%x], fw owner\n",
1957 (aor
==SCB_ABORT
) ? "ABORTING":"RESET",
1963 * Not yet issued! Remove from the pending
1966 dev_warn(&adapter
->dev
->dev
,
1967 "%s-[%x], driver owner\n",
1968 (cmd
) ? "ABORTING":"RESET",
1970 mega_free_scb(adapter
, scb
);
1973 cmd
->result
= (DID_ABORT
<< 16);
1974 list_add_tail(SCSI_LIST(cmd
),
1975 &adapter
->completed_list
);
1986 make_local_pdev(adapter_t
*adapter
, struct pci_dev
**pdev
)
1988 *pdev
= pci_alloc_dev(NULL
);
1990 if( *pdev
== NULL
) return -1;
1992 memcpy(*pdev
, adapter
->dev
, sizeof(struct pci_dev
));
1994 if (dma_set_mask(&(*pdev
)->dev
, DMA_BIT_MASK(32)) != 0) {
2003 free_local_pdev(struct pci_dev
*pdev
)
2009 * mega_allocate_inquiry()
2010 * @dma_handle: handle returned for dma address
2011 * @pdev: handle to pci device
2013 * allocates memory for inquiry structure
2015 static inline void *
2016 mega_allocate_inquiry(dma_addr_t
*dma_handle
, struct pci_dev
*pdev
)
2018 return dma_alloc_coherent(&pdev
->dev
, sizeof(mega_inquiry3
),
2019 dma_handle
, GFP_KERNEL
);
2024 mega_free_inquiry(void *inquiry
, dma_addr_t dma_handle
, struct pci_dev
*pdev
)
2026 dma_free_coherent(&pdev
->dev
, sizeof(mega_inquiry3
), inquiry
,
2031 #ifdef CONFIG_PROC_FS
2032 /* Following code handles /proc fs */
2035 * proc_show_config()
2036 * @m: Synthetic file construction data
2039 * Display configuration information about the controller.
2042 proc_show_config(struct seq_file
*m
, void *v
)
2045 adapter_t
*adapter
= m
->private;
2047 seq_puts(m
, MEGARAID_VERSION
);
2048 if(adapter
->product_info
.product_name
[0])
2049 seq_printf(m
, "%s\n", adapter
->product_info
.product_name
);
2051 seq_puts(m
, "Controller Type: ");
2053 if( adapter
->flag
& BOARD_MEMMAP
)
2054 seq_puts(m
, "438/466/467/471/493/518/520/531/532\n");
2056 seq_puts(m
, "418/428/434\n");
2058 if(adapter
->flag
& BOARD_40LD
)
2059 seq_puts(m
, "Controller Supports 40 Logical Drives\n");
2061 if(adapter
->flag
& BOARD_64BIT
)
2062 seq_puts(m
, "Controller capable of 64-bit memory addressing\n");
2063 if( adapter
->has_64bit_addr
)
2064 seq_puts(m
, "Controller using 64-bit memory addressing\n");
2066 seq_puts(m
, "Controller is not using 64-bit memory addressing\n");
2068 seq_printf(m
, "Base = %08lx, Irq = %d, ",
2069 adapter
->base
, adapter
->host
->irq
);
2071 seq_printf(m
, "Logical Drives = %d, Channels = %d\n",
2072 adapter
->numldrv
, adapter
->product_info
.nchannels
);
2074 seq_printf(m
, "Version =%s:%s, DRAM = %dMb\n",
2075 adapter
->fw_version
, adapter
->bios_version
,
2076 adapter
->product_info
.dram_size
);
2078 seq_printf(m
, "Controller Queue Depth = %d, Driver Queue Depth = %d\n",
2079 adapter
->product_info
.max_commands
, adapter
->max_cmds
);
2081 seq_printf(m
, "support_ext_cdb = %d\n", adapter
->support_ext_cdb
);
2082 seq_printf(m
, "support_random_del = %d\n", adapter
->support_random_del
);
2083 seq_printf(m
, "boot_ldrv_enabled = %d\n", adapter
->boot_ldrv_enabled
);
2084 seq_printf(m
, "boot_ldrv = %d\n", adapter
->boot_ldrv
);
2085 seq_printf(m
, "boot_pdrv_enabled = %d\n", adapter
->boot_pdrv_enabled
);
2086 seq_printf(m
, "boot_pdrv_ch = %d\n", adapter
->boot_pdrv_ch
);
2087 seq_printf(m
, "boot_pdrv_tgt = %d\n", adapter
->boot_pdrv_tgt
);
2088 seq_printf(m
, "quiescent = %d\n",
2089 atomic_read(&adapter
->quiescent
));
2090 seq_printf(m
, "has_cluster = %d\n", adapter
->has_cluster
);
2092 seq_puts(m
, "\nModule Parameters:\n");
2093 seq_printf(m
, "max_cmd_per_lun = %d\n", max_cmd_per_lun
);
2094 seq_printf(m
, "max_sectors_per_io = %d\n", max_sectors_per_io
);
2100 * @m: Synthetic file construction data
2103 * Display statistical information about the I/O activity.
2106 proc_show_stat(struct seq_file
*m
, void *v
)
2108 adapter_t
*adapter
= m
->private;
2113 seq_puts(m
, "Statistical Information for this controller\n");
2114 seq_printf(m
, "pend_cmds = %d\n", atomic_read(&adapter
->pend_cmds
));
2116 for(i
= 0; i
< adapter
->numldrv
; i
++) {
2117 seq_printf(m
, "Logical Drive %d:\n", i
);
2118 seq_printf(m
, "\tReads Issued = %lu, Writes Issued = %lu\n",
2119 adapter
->nreads
[i
], adapter
->nwrites
[i
]);
2120 seq_printf(m
, "\tSectors Read = %lu, Sectors Written = %lu\n",
2121 adapter
->nreadblocks
[i
], adapter
->nwriteblocks
[i
]);
2122 seq_printf(m
, "\tRead errors = %lu, Write errors = %lu\n\n",
2123 adapter
->rd_errors
[i
], adapter
->wr_errors
[i
]);
2126 seq_puts(m
, "IO and error counters not compiled in driver.\n");
2134 * @m: Synthetic file construction data
2137 * Display mailbox information for the last command issued. This information
2138 * is good for debugging.
2141 proc_show_mbox(struct seq_file
*m
, void *v
)
2143 adapter_t
*adapter
= m
->private;
2144 volatile mbox_t
*mbox
= adapter
->mbox
;
2146 seq_puts(m
, "Contents of Mail Box Structure\n");
2147 seq_printf(m
, " Fw Command = 0x%02x\n", mbox
->m_out
.cmd
);
2148 seq_printf(m
, " Cmd Sequence = 0x%02x\n", mbox
->m_out
.cmdid
);
2149 seq_printf(m
, " No of Sectors= %04d\n", mbox
->m_out
.numsectors
);
2150 seq_printf(m
, " LBA = 0x%02x\n", mbox
->m_out
.lba
);
2151 seq_printf(m
, " DTA = 0x%08x\n", mbox
->m_out
.xferaddr
);
2152 seq_printf(m
, " Logical Drive= 0x%02x\n", mbox
->m_out
.logdrv
);
2153 seq_printf(m
, " No of SG Elmt= 0x%02x\n", mbox
->m_out
.numsgelements
);
2154 seq_printf(m
, " Busy = %01x\n", mbox
->m_in
.busy
);
2155 seq_printf(m
, " Status = 0x%02x\n", mbox
->m_in
.status
);
2161 * proc_show_rebuild_rate()
2162 * @m: Synthetic file construction data
2165 * Display current rebuild rate
2168 proc_show_rebuild_rate(struct seq_file
*m
, void *v
)
2170 adapter_t
*adapter
= m
->private;
2171 dma_addr_t dma_handle
;
2173 struct pci_dev
*pdev
;
2175 if( make_local_pdev(adapter
, &pdev
) != 0 )
2178 if( (inquiry
= mega_allocate_inquiry(&dma_handle
, pdev
)) == NULL
)
2181 if( mega_adapinq(adapter
, dma_handle
) != 0 ) {
2182 seq_puts(m
, "Adapter inquiry failed.\n");
2183 dev_warn(&adapter
->dev
->dev
, "inquiry failed\n");
2187 if( adapter
->flag
& BOARD_40LD
)
2188 seq_printf(m
, "Rebuild Rate: [%d%%]\n",
2189 ((mega_inquiry3
*)inquiry
)->rebuild_rate
);
2191 seq_printf(m
, "Rebuild Rate: [%d%%]\n",
2192 ((mraid_ext_inquiry
*)
2193 inquiry
)->raid_inq
.adapter_info
.rebuild_rate
);
2196 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2198 free_local_pdev(pdev
);
2204 * proc_show_battery()
2205 * @m: Synthetic file construction data
2208 * Display information about the battery module on the controller.
2211 proc_show_battery(struct seq_file
*m
, void *v
)
2213 adapter_t
*adapter
= m
->private;
2214 dma_addr_t dma_handle
;
2216 struct pci_dev
*pdev
;
2219 if( make_local_pdev(adapter
, &pdev
) != 0 )
2222 if( (inquiry
= mega_allocate_inquiry(&dma_handle
, pdev
)) == NULL
)
2225 if( mega_adapinq(adapter
, dma_handle
) != 0 ) {
2226 seq_puts(m
, "Adapter inquiry failed.\n");
2227 dev_warn(&adapter
->dev
->dev
, "inquiry failed\n");
2231 if( adapter
->flag
& BOARD_40LD
) {
2232 battery_status
= ((mega_inquiry3
*)inquiry
)->battery_status
;
2235 battery_status
= ((mraid_ext_inquiry
*)inquiry
)->
2236 raid_inq
.adapter_info
.battery_status
;
2240 * Decode the battery status
2242 seq_printf(m
, "Battery Status:[%d]", battery_status
);
2244 if(battery_status
== MEGA_BATT_CHARGE_DONE
)
2245 seq_puts(m
, " Charge Done");
2247 if(battery_status
& MEGA_BATT_MODULE_MISSING
)
2248 seq_puts(m
, " Module Missing");
2250 if(battery_status
& MEGA_BATT_LOW_VOLTAGE
)
2251 seq_puts(m
, " Low Voltage");
2253 if(battery_status
& MEGA_BATT_TEMP_HIGH
)
2254 seq_puts(m
, " Temperature High");
2256 if(battery_status
& MEGA_BATT_PACK_MISSING
)
2257 seq_puts(m
, " Pack Missing");
2259 if(battery_status
& MEGA_BATT_CHARGE_INPROG
)
2260 seq_puts(m
, " Charge In-progress");
2262 if(battery_status
& MEGA_BATT_CHARGE_FAIL
)
2263 seq_puts(m
, " Charge Fail");
2265 if(battery_status
& MEGA_BATT_CYCLES_EXCEEDED
)
2266 seq_puts(m
, " Cycles Exceeded");
2271 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2273 free_local_pdev(pdev
);
2279 * Display scsi inquiry
2282 mega_print_inquiry(struct seq_file
*m
, char *scsi_inq
)
2286 seq_puts(m
, " Vendor: ");
2287 seq_write(m
, scsi_inq
+ 8, 8);
2288 seq_puts(m
, " Model: ");
2289 seq_write(m
, scsi_inq
+ 16, 16);
2290 seq_puts(m
, " Rev: ");
2291 seq_write(m
, scsi_inq
+ 32, 4);
2294 i
= scsi_inq
[0] & 0x1f;
2295 seq_printf(m
, " Type: %s ", scsi_device_type(i
));
2297 seq_printf(m
, " ANSI SCSI revision: %02x",
2298 scsi_inq
[2] & 0x07);
2300 if( (scsi_inq
[2] & 0x07) == 1 && (scsi_inq
[3] & 0x0f) == 1 )
2301 seq_puts(m
, " CCS\n");
2308 * @m: Synthetic file construction data
2309 * @adapter: pointer to our soft state
2312 * Display information about the physical drives.
2315 proc_show_pdrv(struct seq_file
*m
, adapter_t
*adapter
, int channel
)
2317 dma_addr_t dma_handle
;
2319 dma_addr_t scsi_inq_dma_handle
;
2321 struct pci_dev
*pdev
;
2328 if( make_local_pdev(adapter
, &pdev
) != 0 )
2331 if( (inquiry
= mega_allocate_inquiry(&dma_handle
, pdev
)) == NULL
)
2334 if( mega_adapinq(adapter
, dma_handle
) != 0 ) {
2335 seq_puts(m
, "Adapter inquiry failed.\n");
2336 dev_warn(&adapter
->dev
->dev
, "inquiry failed\n");
2341 scsi_inq
= dma_alloc_coherent(&pdev
->dev
, 256, &scsi_inq_dma_handle
,
2343 if( scsi_inq
== NULL
) {
2344 seq_puts(m
, "memory not available for scsi inq.\n");
2348 if( adapter
->flag
& BOARD_40LD
) {
2349 pdrv_state
= ((mega_inquiry3
*)inquiry
)->pdrv_state
;
2352 pdrv_state
= ((mraid_ext_inquiry
*)inquiry
)->
2353 raid_inq
.pdrv_info
.pdrv_state
;
2356 max_channels
= adapter
->product_info
.nchannels
;
2358 if( channel
>= max_channels
) {
2362 for( tgt
= 0; tgt
<= MAX_TARGET
; tgt
++ ) {
2364 i
= channel
*16 + tgt
;
2366 state
= *(pdrv_state
+ i
);
2367 switch( state
& 0x0F ) {
2369 seq_printf(m
, "Channel:%2d Id:%2d State: Online",
2374 seq_printf(m
, "Channel:%2d Id:%2d State: Failed",
2379 seq_printf(m
, "Channel:%2d Id:%2d State: Rebuild",
2384 seq_printf(m
, "Channel:%2d Id:%2d State: Hot spare",
2389 seq_printf(m
, "Channel:%2d Id:%2d State: Un-configured",
2395 * This interface displays inquiries for disk drives
2396 * only. Inquries for logical drives and non-disk
2397 * devices are available through /proc/scsi/scsi
2399 memset(scsi_inq
, 0, 256);
2400 if( mega_internal_dev_inquiry(adapter
, channel
, tgt
,
2401 scsi_inq_dma_handle
) ||
2402 (scsi_inq
[0] & 0x1F) != TYPE_DISK
) {
2407 * Check for overflow. We print less than 240
2408 * characters for inquiry
2411 mega_print_inquiry(m
, scsi_inq
);
2415 dma_free_coherent(&pdev
->dev
, 256, scsi_inq
, scsi_inq_dma_handle
);
2417 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2419 free_local_pdev(pdev
);
2424 * proc_show_pdrv_ch0()
2425 * @m: Synthetic file construction data
2428 * Display information about the physical drives on physical channel 0.
2431 proc_show_pdrv_ch0(struct seq_file
*m
, void *v
)
2433 return proc_show_pdrv(m
, m
->private, 0);
2438 * proc_show_pdrv_ch1()
2439 * @m: Synthetic file construction data
2442 * Display information about the physical drives on physical channel 1.
2445 proc_show_pdrv_ch1(struct seq_file
*m
, void *v
)
2447 return proc_show_pdrv(m
, m
->private, 1);
2452 * proc_show_pdrv_ch2()
2453 * @m: Synthetic file construction data
2456 * Display information about the physical drives on physical channel 2.
2459 proc_show_pdrv_ch2(struct seq_file
*m
, void *v
)
2461 return proc_show_pdrv(m
, m
->private, 2);
2466 * proc_show_pdrv_ch3()
2467 * @m: Synthetic file construction data
2470 * Display information about the physical drives on physical channel 3.
2473 proc_show_pdrv_ch3(struct seq_file
*m
, void *v
)
2475 return proc_show_pdrv(m
, m
->private, 3);
2481 * @m: Synthetic file construction data
2482 * @adapter: pointer to our soft state
2483 * @start: starting logical drive to display
2484 * @end: ending logical drive to display
2486 * We do not print the inquiry information since its already available through
2487 * /proc/scsi/scsi interface
2490 proc_show_rdrv(struct seq_file
*m
, adapter_t
*adapter
, int start
, int end
)
2492 dma_addr_t dma_handle
;
2493 logdrv_param
*lparam
;
2496 dma_addr_t disk_array_dma_handle
;
2498 struct pci_dev
*pdev
;
2504 if( make_local_pdev(adapter
, &pdev
) != 0 )
2507 if( (inquiry
= mega_allocate_inquiry(&dma_handle
, pdev
)) == NULL
)
2510 if( mega_adapinq(adapter
, dma_handle
) != 0 ) {
2511 seq_puts(m
, "Adapter inquiry failed.\n");
2512 dev_warn(&adapter
->dev
->dev
, "inquiry failed\n");
2516 memset(&mc
, 0, sizeof(megacmd_t
));
2518 if( adapter
->flag
& BOARD_40LD
) {
2519 array_sz
= sizeof(disk_array_40ld
);
2521 rdrv_state
= ((mega_inquiry3
*)inquiry
)->ldrv_state
;
2523 num_ldrv
= ((mega_inquiry3
*)inquiry
)->num_ldrv
;
2526 array_sz
= sizeof(disk_array_8ld
);
2528 rdrv_state
= ((mraid_ext_inquiry
*)inquiry
)->
2529 raid_inq
.logdrv_info
.ldrv_state
;
2531 num_ldrv
= ((mraid_ext_inquiry
*)inquiry
)->
2532 raid_inq
.logdrv_info
.num_ldrv
;
2535 disk_array
= dma_alloc_coherent(&pdev
->dev
, array_sz
,
2536 &disk_array_dma_handle
, GFP_KERNEL
);
2538 if( disk_array
== NULL
) {
2539 seq_puts(m
, "memory not available.\n");
2543 mc
.xferaddr
= (u32
)disk_array_dma_handle
;
2545 if( adapter
->flag
& BOARD_40LD
) {
2546 mc
.cmd
= FC_NEW_CONFIG
;
2547 mc
.opcode
= OP_DCMD_READ_CONFIG
;
2549 if( mega_internal_command(adapter
, &mc
, NULL
) ) {
2550 seq_puts(m
, "40LD read config failed.\n");
2556 mc
.cmd
= NEW_READ_CONFIG_8LD
;
2558 if( mega_internal_command(adapter
, &mc
, NULL
) ) {
2559 mc
.cmd
= READ_CONFIG_8LD
;
2560 if( mega_internal_command(adapter
, &mc
, NULL
) ) {
2561 seq_puts(m
, "8LD read config failed.\n");
2567 for( i
= start
; i
< ( (end
+1 < num_ldrv
) ? end
+1 : num_ldrv
); i
++ ) {
2569 if( adapter
->flag
& BOARD_40LD
) {
2571 &((disk_array_40ld
*)disk_array
)->ldrv
[i
].lparam
;
2575 &((disk_array_8ld
*)disk_array
)->ldrv
[i
].lparam
;
2579 * Check for overflow. We print less than 240 characters for
2580 * information about each logical drive.
2582 seq_printf(m
, "Logical drive:%2d:, ", i
);
2584 switch( rdrv_state
[i
] & 0x0F ) {
2586 seq_puts(m
, "state: offline");
2589 seq_puts(m
, "state: degraded");
2592 seq_puts(m
, "state: optimal");
2595 seq_puts(m
, "state: deleted");
2598 seq_puts(m
, "state: unknown");
2603 * Check if check consistency or initialization is going on
2604 * for this logical drive.
2606 if( (rdrv_state
[i
] & 0xF0) == 0x20 )
2607 seq_puts(m
, ", check-consistency in progress");
2608 else if( (rdrv_state
[i
] & 0xF0) == 0x10 )
2609 seq_puts(m
, ", initialization in progress");
2613 seq_printf(m
, "Span depth:%3d, ", lparam
->span_depth
);
2614 seq_printf(m
, "RAID level:%3d, ", lparam
->level
);
2615 seq_printf(m
, "Stripe size:%3d, ",
2616 lparam
->stripe_sz
? lparam
->stripe_sz
/2: 128);
2617 seq_printf(m
, "Row size:%3d\n", lparam
->row_size
);
2619 seq_puts(m
, "Read Policy: ");
2620 switch(lparam
->read_ahead
) {
2622 seq_puts(m
, "No read ahead, ");
2625 seq_puts(m
, "Read ahead, ");
2627 case ADAP_READ_AHEAD
:
2628 seq_puts(m
, "Adaptive, ");
2633 seq_puts(m
, "Write Policy: ");
2634 switch(lparam
->write_mode
) {
2635 case WRMODE_WRITE_THRU
:
2636 seq_puts(m
, "Write thru, ");
2638 case WRMODE_WRITE_BACK
:
2639 seq_puts(m
, "Write back, ");
2643 seq_puts(m
, "Cache Policy: ");
2644 switch(lparam
->direct_io
) {
2646 seq_puts(m
, "Cached IO\n\n");
2649 seq_puts(m
, "Direct IO\n\n");
2655 dma_free_coherent(&pdev
->dev
, array_sz
, disk_array
,
2656 disk_array_dma_handle
);
2658 mega_free_inquiry(inquiry
, dma_handle
, pdev
);
2660 free_local_pdev(pdev
);
2665 * proc_show_rdrv_10()
2666 * @m: Synthetic file construction data
2669 * Display real time information about the logical drives 0 through 9.
2672 proc_show_rdrv_10(struct seq_file
*m
, void *v
)
2674 return proc_show_rdrv(m
, m
->private, 0, 9);
2679 * proc_show_rdrv_20()
2680 * @m: Synthetic file construction data
2683 * Display real time information about the logical drives 0 through 9.
2686 proc_show_rdrv_20(struct seq_file
*m
, void *v
)
2688 return proc_show_rdrv(m
, m
->private, 10, 19);
2693 * proc_show_rdrv_30()
2694 * @m: Synthetic file construction data
2697 * Display real time information about the logical drives 0 through 9.
2700 proc_show_rdrv_30(struct seq_file
*m
, void *v
)
2702 return proc_show_rdrv(m
, m
->private, 20, 29);
2707 * proc_show_rdrv_40()
2708 * @m: Synthetic file construction data
2711 * Display real time information about the logical drives 0 through 9.
2714 proc_show_rdrv_40(struct seq_file
*m
, void *v
)
2716 return proc_show_rdrv(m
, m
->private, 30, 39);
2720 * mega_create_proc_entry()
2721 * @index: index in soft state array
2722 * @parent: parent node for this /proc entry
2724 * Creates /proc entries for our controllers.
2727 mega_create_proc_entry(int index
, struct proc_dir_entry
*parent
)
2729 adapter_t
*adapter
= hba_soft_state
[index
];
2730 struct proc_dir_entry
*dir
;
2733 sprintf(string
, "hba%d", adapter
->host
->host_no
);
2734 dir
= proc_mkdir_data(string
, 0, parent
, adapter
);
2736 dev_warn(&adapter
->dev
->dev
, "proc_mkdir failed\n");
2740 proc_create_single_data("config", S_IRUSR
, dir
,
2741 proc_show_config
, adapter
);
2742 proc_create_single_data("stat", S_IRUSR
, dir
,
2743 proc_show_stat
, adapter
);
2744 proc_create_single_data("mailbox", S_IRUSR
, dir
,
2745 proc_show_mbox
, adapter
);
2746 #if MEGA_HAVE_ENH_PROC
2747 proc_create_single_data("rebuild-rate", S_IRUSR
, dir
,
2748 proc_show_rebuild_rate
, adapter
);
2749 proc_create_single_data("battery-status", S_IRUSR
, dir
,
2750 proc_show_battery
, adapter
);
2751 proc_create_single_data("diskdrives-ch0", S_IRUSR
, dir
,
2752 proc_show_pdrv_ch0
, adapter
);
2753 proc_create_single_data("diskdrives-ch1", S_IRUSR
, dir
,
2754 proc_show_pdrv_ch1
, adapter
);
2755 proc_create_single_data("diskdrives-ch2", S_IRUSR
, dir
,
2756 proc_show_pdrv_ch2
, adapter
);
2757 proc_create_single_data("diskdrives-ch3", S_IRUSR
, dir
,
2758 proc_show_pdrv_ch3
, adapter
);
2759 proc_create_single_data("raiddrives-0-9", S_IRUSR
, dir
,
2760 proc_show_rdrv_10
, adapter
);
2761 proc_create_single_data("raiddrives-10-19", S_IRUSR
, dir
,
2762 proc_show_rdrv_20
, adapter
);
2763 proc_create_single_data("raiddrives-20-29", S_IRUSR
, dir
,
2764 proc_show_rdrv_30
, adapter
);
2765 proc_create_single_data("raiddrives-30-39", S_IRUSR
, dir
,
2766 proc_show_rdrv_40
, adapter
);
2771 static inline void mega_create_proc_entry(int index
, struct proc_dir_entry
*parent
)
2778 * megaraid_biosparam()
2780 * Return the disk geometry for a particular disk
2783 megaraid_biosparam(struct scsi_device
*sdev
, struct block_device
*bdev
,
2784 sector_t capacity
, int geom
[])
2791 /* Get pointer to host config structure */
2792 adapter
= (adapter_t
*)sdev
->host
->hostdata
;
2794 if (IS_RAID_CH(adapter
, sdev
->channel
)) {
2795 /* Default heads (64) & sectors (32) */
2798 cylinders
= (ulong
)capacity
/ (heads
* sectors
);
2801 * Handle extended translation size for logical drives
2804 if ((ulong
)capacity
>= 0x200000) {
2807 cylinders
= (ulong
)capacity
/ (heads
* sectors
);
2813 geom
[2] = cylinders
;
2816 if (scsi_partsize(bdev
, capacity
, geom
))
2819 dev_info(&adapter
->dev
->dev
,
2820 "invalid partition on this disk on channel %d\n",
2823 /* Default heads (64) & sectors (32) */
2826 cylinders
= (ulong
)capacity
/ (heads
* sectors
);
2828 /* Handle extended translation size for logical drives > 1Gb */
2829 if ((ulong
)capacity
>= 0x200000) {
2832 cylinders
= (ulong
)capacity
/ (heads
* sectors
);
2838 geom
[2] = cylinders
;
2846 * @adapter: pointer to our soft state
2848 * Allocate memory for the various pointers in the scb structures:
2849 * scatter-gather list pointer, passthru and extended passthru structure
2853 mega_init_scb(adapter_t
*adapter
)
2858 for( i
= 0; i
< adapter
->max_cmds
; i
++ ) {
2860 scb
= &adapter
->scb_list
[i
];
2868 for( i
= 0; i
< adapter
->max_cmds
; i
++ ) {
2870 scb
= &adapter
->scb_list
[i
];
2874 scb
->sgl64
= dma_alloc_coherent(&adapter
->dev
->dev
,
2875 sizeof(mega_sgl64
) * adapter
->sglen
,
2876 &scb
->sgl_dma_addr
, GFP_KERNEL
);
2878 scb
->sgl
= (mega_sglist
*)scb
->sgl64
;
2881 dev_warn(&adapter
->dev
->dev
, "RAID: Can't allocate sglist\n");
2882 mega_free_sgl(adapter
);
2886 scb
->pthru
= dma_alloc_coherent(&adapter
->dev
->dev
,
2887 sizeof(mega_passthru
),
2888 &scb
->pthru_dma_addr
, GFP_KERNEL
);
2891 dev_warn(&adapter
->dev
->dev
, "RAID: Can't allocate passthru\n");
2892 mega_free_sgl(adapter
);
2896 scb
->epthru
= dma_alloc_coherent(&adapter
->dev
->dev
,
2897 sizeof(mega_ext_passthru
),
2898 &scb
->epthru_dma_addr
, GFP_KERNEL
);
2900 if( !scb
->epthru
) {
2901 dev_warn(&adapter
->dev
->dev
,
2902 "Can't allocate extended passthru\n");
2903 mega_free_sgl(adapter
);
2908 scb
->dma_type
= MEGA_DMA_TYPE_NONE
;
2912 * lock not required since we are loading the driver, so no
2913 * commands possible right now.
2915 scb
->state
= SCB_FREE
;
2917 list_add(&scb
->list
, &adapter
->free_list
);
2929 * Routines for the character/ioctl interface to the driver. Find out if this
2933 megadev_open (struct inode
*inode
, struct file
*filep
)
2936 * Only allow superuser to access private ioctl interface
2938 if( !capable(CAP_SYS_ADMIN
) ) return -EACCES
;
2946 * @filep: Our device file
2947 * @cmd: ioctl command
2950 * ioctl entry point for our private ioctl interface. We move the data in from
2951 * the user space, prepare the command (if necessary, convert the old MIMD
2952 * ioctl to new ioctl command), and issue a synchronous command to the
2956 megadev_ioctl(struct file
*filep
, unsigned int cmd
, unsigned long arg
)
2962 mega_passthru __user
*upthru
; /* user address for passthru */
2963 mega_passthru
*pthru
; /* copy user passthru here */
2964 dma_addr_t pthru_dma_hndl
;
2965 void *data
= NULL
; /* data to be transferred */
2966 dma_addr_t data_dma_hndl
; /* dma handle for data xfer area */
2969 megastat_t __user
*ustats
= NULL
;
2973 struct pci_dev
*pdev
;
2976 * Make sure only USCSICMD are issued through this interface.
2977 * MIMD application would still fire different command.
2979 if( (_IOC_TYPE(cmd
) != MEGAIOC_MAGIC
) && (cmd
!= USCSICMD
) ) {
2984 * Check and convert a possible MIMD command to NIT command.
2985 * mega_m_to_n() copies the data from the user space, so we do not
2986 * have to do it here.
2987 * NOTE: We will need some user address to copyout the data, therefore
2988 * the inteface layer will also provide us with the required user
2991 memset(&uioc
, 0, sizeof(nitioctl_t
));
2992 if( (rval
= mega_m_to_n( (void __user
*)arg
, &uioc
)) != 0 )
2996 switch( uioc
.opcode
) {
2998 case GET_DRIVER_VER
:
2999 if( put_user(driver_ver
, (u32 __user
*)uioc
.uioc_uaddr
) )
3005 if( put_user(hba_count
, (u32 __user
*)uioc
.uioc_uaddr
) )
3009 * Shucks. MIMD interface returns a positive value for number
3010 * of adapters. TODO: Change it to return 0 when there is no
3011 * applicatio using mimd interface.
3020 if( (adapno
= GETADAP(uioc
.adapno
)) >= hba_count
)
3023 if( copy_to_user(uioc
.uioc_uaddr
, mcontroller
+adapno
,
3024 sizeof(struct mcontroller
)) )
3034 if( (adapno
= GETADAP(uioc
.adapno
)) >= hba_count
)
3037 adapter
= hba_soft_state
[adapno
];
3039 ustats
= uioc
.uioc_uaddr
;
3041 if( copy_from_user(&num_ldrv
, &ustats
->num_ldrv
, sizeof(int)) )
3045 * Check for the validity of the logical drive number
3047 if( num_ldrv
>= MAX_LOGICAL_DRIVES_40LD
) return -EINVAL
;
3049 if( copy_to_user(ustats
->nreads
, adapter
->nreads
,
3050 num_ldrv
*sizeof(u32
)) )
3053 if( copy_to_user(ustats
->nreadblocks
, adapter
->nreadblocks
,
3054 num_ldrv
*sizeof(u32
)) )
3057 if( copy_to_user(ustats
->nwrites
, adapter
->nwrites
,
3058 num_ldrv
*sizeof(u32
)) )
3061 if( copy_to_user(ustats
->nwriteblocks
, adapter
->nwriteblocks
,
3062 num_ldrv
*sizeof(u32
)) )
3065 if( copy_to_user(ustats
->rd_errors
, adapter
->rd_errors
,
3066 num_ldrv
*sizeof(u32
)) )
3069 if( copy_to_user(ustats
->wr_errors
, adapter
->wr_errors
,
3070 num_ldrv
*sizeof(u32
)) )
3081 if( (adapno
= GETADAP(uioc
.adapno
)) >= hba_count
)
3084 adapter
= hba_soft_state
[adapno
];
3087 * Deletion of logical drive is a special case. The adapter
3088 * should be quiescent before this command is issued.
3090 if( uioc
.uioc_rmbox
[0] == FC_DEL_LOGDRV
&&
3091 uioc
.uioc_rmbox
[2] == OP_DEL_LOGDRV
) {
3094 * Do we support this feature
3096 if( !adapter
->support_random_del
) {
3097 dev_warn(&adapter
->dev
->dev
, "logdrv "
3098 "delete on non-supporting F/W\n");
3103 rval
= mega_del_logdrv( adapter
, uioc
.uioc_rmbox
[3] );
3106 memset(&mc
, 0, sizeof(megacmd_t
));
3110 rval
= mega_n_to_m((void __user
*)arg
, &mc
);
3116 * This interface only support the regular passthru commands.
3117 * Reject extended passthru and 64-bit passthru
3119 if( uioc
.uioc_rmbox
[0] == MEGA_MBOXCMD_PASSTHRU64
||
3120 uioc
.uioc_rmbox
[0] == MEGA_MBOXCMD_EXTPTHRU
) {
3122 dev_warn(&adapter
->dev
->dev
, "rejected passthru\n");
3128 * For all internal commands, the buffer must be allocated in
3129 * <4GB address range
3131 if( make_local_pdev(adapter
, &pdev
) != 0 )
3134 /* Is it a passthru command or a DCMD */
3135 if( uioc
.uioc_rmbox
[0] == MEGA_MBOXCMD_PASSTHRU
) {
3136 /* Passthru commands */
3138 pthru
= dma_alloc_coherent(&pdev
->dev
,
3139 sizeof(mega_passthru
),
3140 &pthru_dma_hndl
, GFP_KERNEL
);
3142 if( pthru
== NULL
) {
3143 free_local_pdev(pdev
);
3148 * The user passthru structure
3150 upthru
= (mega_passthru __user
*)(unsigned long)MBOX(uioc
)->xferaddr
;
3153 * Copy in the user passthru here.
3155 if( copy_from_user(pthru
, upthru
,
3156 sizeof(mega_passthru
)) ) {
3158 dma_free_coherent(&pdev
->dev
,
3159 sizeof(mega_passthru
),
3160 pthru
, pthru_dma_hndl
);
3162 free_local_pdev(pdev
);
3168 * Is there a data transfer
3170 if( pthru
->dataxferlen
) {
3171 data
= dma_alloc_coherent(&pdev
->dev
,
3176 if( data
== NULL
) {
3177 dma_free_coherent(&pdev
->dev
,
3178 sizeof(mega_passthru
),
3182 free_local_pdev(pdev
);
3188 * Save the user address and point the kernel
3189 * address at just allocated memory
3191 uxferaddr
= pthru
->dataxferaddr
;
3192 pthru
->dataxferaddr
= data_dma_hndl
;
3197 * Is data coming down-stream
3199 if( pthru
->dataxferlen
&& (uioc
.flags
& UIOC_WR
) ) {
3203 if( copy_from_user(data
, (char __user
*)(unsigned long) uxferaddr
,
3204 pthru
->dataxferlen
) ) {
3206 goto freemem_and_return
;
3210 memset(&mc
, 0, sizeof(megacmd_t
));
3212 mc
.cmd
= MEGA_MBOXCMD_PASSTHRU
;
3213 mc
.xferaddr
= (u32
)pthru_dma_hndl
;
3218 mega_internal_command(adapter
, &mc
, pthru
);
3220 rval
= mega_n_to_m((void __user
*)arg
, &mc
);
3222 if( rval
) goto freemem_and_return
;
3226 * Is data going up-stream
3228 if( pthru
->dataxferlen
&& (uioc
.flags
& UIOC_RD
) ) {
3229 if( copy_to_user((char __user
*)(unsigned long) uxferaddr
, data
,
3230 pthru
->dataxferlen
) ) {
3236 * Send the request sense data also, irrespective of
3237 * whether the user has asked for it or not.
3239 if (copy_to_user(upthru
->reqsensearea
,
3240 pthru
->reqsensearea
, 14))
3244 if( pthru
->dataxferlen
) {
3245 dma_free_coherent(&pdev
->dev
,
3246 pthru
->dataxferlen
, data
,
3250 dma_free_coherent(&pdev
->dev
, sizeof(mega_passthru
),
3251 pthru
, pthru_dma_hndl
);
3253 free_local_pdev(pdev
);
3261 * Is there a data transfer
3263 if( uioc
.xferlen
) {
3264 data
= dma_alloc_coherent(&pdev
->dev
,
3269 if( data
== NULL
) {
3270 free_local_pdev(pdev
);
3274 uxferaddr
= MBOX(uioc
)->xferaddr
;
3278 * Is data coming down-stream
3280 if( uioc
.xferlen
&& (uioc
.flags
& UIOC_WR
) ) {
3284 if( copy_from_user(data
, (char __user
*)(unsigned long) uxferaddr
,
3287 dma_free_coherent(&pdev
->dev
,
3291 free_local_pdev(pdev
);
3297 memcpy(&mc
, MBOX(uioc
), sizeof(megacmd_t
));
3299 mc
.xferaddr
= (u32
)data_dma_hndl
;
3304 mega_internal_command(adapter
, &mc
, NULL
);
3306 rval
= mega_n_to_m((void __user
*)arg
, &mc
);
3309 if( uioc
.xferlen
) {
3310 dma_free_coherent(&pdev
->dev
,
3315 free_local_pdev(pdev
);
3321 * Is data going up-stream
3323 if( uioc
.xferlen
&& (uioc
.flags
& UIOC_RD
) ) {
3324 if( copy_to_user((char __user
*)(unsigned long) uxferaddr
, data
,
3331 if( uioc
.xferlen
) {
3332 dma_free_coherent(&pdev
->dev
, uioc
.xferlen
,
3333 data
, data_dma_hndl
);
3336 free_local_pdev(pdev
);
3349 megadev_unlocked_ioctl(struct file
*filep
, unsigned int cmd
, unsigned long arg
)
3353 mutex_lock(&megadev_mutex
);
3354 ret
= megadev_ioctl(filep
, cmd
, arg
);
3355 mutex_unlock(&megadev_mutex
);
3362 * @arg: user address
3363 * @uioc: new ioctl structure
3365 * A thin layer to convert older mimd interface ioctl structure to NIT ioctl
3368 * Converts the older mimd ioctl structure to newer NIT structure
3371 mega_m_to_n(void __user
*arg
, nitioctl_t
*uioc
)
3373 struct uioctl_t uioc_mimd
;
3374 char signature
[8] = {0};
3380 * check is the application conforms to NIT. We do not have to do much
3382 * We exploit the fact that the signature is stored in the very
3383 * beginning of the structure.
3386 if( copy_from_user(signature
, arg
, 7) )
3389 if( memcmp(signature
, "MEGANIT", 7) == 0 ) {
3392 * NOTE NOTE: The nit ioctl is still under flux because of
3393 * change of mailbox definition, in HPE. No applications yet
3394 * use this interface and let's not have applications use this
3395 * interface till the new specifitions are in place.
3399 if( copy_from_user(uioc
, arg
, sizeof(nitioctl_t
)) )
3406 * Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t
3408 * Get the user ioctl structure
3410 if( copy_from_user(&uioc_mimd
, arg
, sizeof(struct uioctl_t
)) )
3415 * Get the opcode and subopcode for the commands
3417 opcode
= uioc_mimd
.ui
.fcs
.opcode
;
3418 subopcode
= uioc_mimd
.ui
.fcs
.subopcode
;
3423 switch (subopcode
) {
3425 case MEGAIOC_QDRVRVER
: /* Query driver version */
3426 uioc
->opcode
= GET_DRIVER_VER
;
3427 uioc
->uioc_uaddr
= uioc_mimd
.data
;
3430 case MEGAIOC_QNADAP
: /* Get # of adapters */
3431 uioc
->opcode
= GET_N_ADAP
;
3432 uioc
->uioc_uaddr
= uioc_mimd
.data
;
3435 case MEGAIOC_QADAPINFO
: /* Get adapter information */
3436 uioc
->opcode
= GET_ADAP_INFO
;
3437 uioc
->adapno
= uioc_mimd
.ui
.fcs
.adapno
;
3438 uioc
->uioc_uaddr
= uioc_mimd
.data
;
3450 uioc
->opcode
= MBOX_CMD
;
3451 uioc
->adapno
= uioc_mimd
.ui
.fcs
.adapno
;
3453 memcpy(uioc
->uioc_rmbox
, uioc_mimd
.mbox
, 18);
3455 uioc
->xferlen
= uioc_mimd
.ui
.fcs
.length
;
3457 if( uioc_mimd
.outlen
) uioc
->flags
= UIOC_RD
;
3458 if( uioc_mimd
.inlen
) uioc
->flags
|= UIOC_WR
;
3464 uioc
->opcode
= MBOX_CMD
;
3465 uioc
->adapno
= uioc_mimd
.ui
.fcs
.adapno
;
3467 memcpy(uioc
->uioc_rmbox
, uioc_mimd
.mbox
, 18);
3470 * Choose the xferlen bigger of input and output data
3472 uioc
->xferlen
= uioc_mimd
.outlen
> uioc_mimd
.inlen
?
3473 uioc_mimd
.outlen
: uioc_mimd
.inlen
;
3475 if( uioc_mimd
.outlen
) uioc
->flags
= UIOC_RD
;
3476 if( uioc_mimd
.inlen
) uioc
->flags
|= UIOC_WR
;
3490 * @arg: user address
3491 * @mc: mailbox command
3493 * Updates the status information to the application, depending on application
3494 * conforms to older mimd ioctl interface or newer NIT ioctl interface
3497 mega_n_to_m(void __user
*arg
, megacmd_t
*mc
)
3499 nitioctl_t __user
*uiocp
;
3500 megacmd_t __user
*umc
;
3501 mega_passthru __user
*upthru
;
3502 struct uioctl_t __user
*uioc_mimd
;
3503 char signature
[8] = {0};
3506 * check is the application conforms to NIT.
3508 if( copy_from_user(signature
, arg
, 7) )
3511 if( memcmp(signature
, "MEGANIT", 7) == 0 ) {
3515 if( put_user(mc
->status
, (u8 __user
*)&MBOX_P(uiocp
)->status
) )
3518 if( mc
->cmd
== MEGA_MBOXCMD_PASSTHRU
) {
3520 umc
= MBOX_P(uiocp
);
3522 if (get_user(upthru
, (mega_passthru __user
* __user
*)&umc
->xferaddr
))
3525 if( put_user(mc
->status
, (u8 __user
*)&upthru
->scsistatus
))
3532 if( put_user(mc
->status
, (u8 __user
*)&uioc_mimd
->mbox
[17]) )
3535 if( mc
->cmd
== MEGA_MBOXCMD_PASSTHRU
) {
3537 umc
= (megacmd_t __user
*)uioc_mimd
->mbox
;
3539 if (get_user(upthru
, (mega_passthru __user
* __user
*)&umc
->xferaddr
))
3542 if( put_user(mc
->status
, (u8 __user
*)&upthru
->scsistatus
) )
3552 * MEGARAID 'FW' commands.
3556 * mega_is_bios_enabled()
3557 * @adapter: pointer to our soft state
3559 * issue command to find out if the BIOS is enabled for this controller
3562 mega_is_bios_enabled(adapter_t
*adapter
)
3564 struct mbox_out mbox
;
3565 unsigned char *raw_mbox
= (u8
*)&mbox
;
3567 memset(&mbox
, 0, sizeof(mbox
));
3569 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
3571 mbox
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
3573 raw_mbox
[0] = IS_BIOS_ENABLED
;
3574 raw_mbox
[2] = GET_BIOS
;
3576 issue_scb_block(adapter
, raw_mbox
);
3578 return *(char *)adapter
->mega_buffer
;
3583 * mega_enum_raid_scsi()
3584 * @adapter: pointer to our soft state
3586 * Find out what channels are RAID/SCSI. This information is used to
3587 * differentiate the virtual channels and physical channels and to support
3588 * ROMB feature and non-disk devices.
3591 mega_enum_raid_scsi(adapter_t
*adapter
)
3593 struct mbox_out mbox
;
3594 unsigned char *raw_mbox
= (u8
*)&mbox
;
3597 memset(&mbox
, 0, sizeof(mbox
));
3600 * issue command to find out what channels are raid/scsi
3602 raw_mbox
[0] = CHNL_CLASS
;
3603 raw_mbox
[2] = GET_CHNL_CLASS
;
3605 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
3607 mbox
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
3610 * Non-ROMB firmware fail this command, so all channels
3611 * must be shown RAID
3613 adapter
->mega_ch_class
= 0xFF;
3615 if(!issue_scb_block(adapter
, raw_mbox
)) {
3616 adapter
->mega_ch_class
= *((char *)adapter
->mega_buffer
);
3620 for( i
= 0; i
< adapter
->product_info
.nchannels
; i
++ ) {
3621 if( (adapter
->mega_ch_class
>> i
) & 0x01 ) {
3622 dev_info(&adapter
->dev
->dev
, "channel[%d] is raid\n",
3626 dev_info(&adapter
->dev
->dev
, "channel[%d] is scsi\n",
3636 * mega_get_boot_drv()
3637 * @adapter: pointer to our soft state
3639 * Find out which device is the boot device. Note, any logical drive or any
3640 * phyical device (e.g., a CDROM) can be designated as a boot device.
3643 mega_get_boot_drv(adapter_t
*adapter
)
3645 struct private_bios_data
*prv_bios_data
;
3646 struct mbox_out mbox
;
3647 unsigned char *raw_mbox
= (u8
*)&mbox
;
3653 memset(&mbox
, 0, sizeof(mbox
));
3655 raw_mbox
[0] = BIOS_PVT_DATA
;
3656 raw_mbox
[2] = GET_BIOS_PVT_DATA
;
3658 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
3660 mbox
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
3662 adapter
->boot_ldrv_enabled
= 0;
3663 adapter
->boot_ldrv
= 0;
3665 adapter
->boot_pdrv_enabled
= 0;
3666 adapter
->boot_pdrv_ch
= 0;
3667 adapter
->boot_pdrv_tgt
= 0;
3669 if(issue_scb_block(adapter
, raw_mbox
) == 0) {
3671 (struct private_bios_data
*)adapter
->mega_buffer
;
3674 cksum_p
= (char *)prv_bios_data
;
3675 for (i
= 0; i
< 14; i
++ ) {
3676 cksum
+= (u16
)(*cksum_p
++);
3679 if (prv_bios_data
->cksum
== (u16
)(0-cksum
) ) {
3682 * If MSB is set, a physical drive is set as boot
3685 if( prv_bios_data
->boot_drv
& 0x80 ) {
3686 adapter
->boot_pdrv_enabled
= 1;
3687 boot_pdrv
= prv_bios_data
->boot_drv
& 0x7F;
3688 adapter
->boot_pdrv_ch
= boot_pdrv
/ 16;
3689 adapter
->boot_pdrv_tgt
= boot_pdrv
% 16;
3692 adapter
->boot_ldrv_enabled
= 1;
3693 adapter
->boot_ldrv
= prv_bios_data
->boot_drv
;
3701 * mega_support_random_del()
3702 * @adapter: pointer to our soft state
3704 * Find out if this controller supports random deletion and addition of
3708 mega_support_random_del(adapter_t
*adapter
)
3710 struct mbox_out mbox
;
3711 unsigned char *raw_mbox
= (u8
*)&mbox
;
3714 memset(&mbox
, 0, sizeof(mbox
));
3719 raw_mbox
[0] = FC_DEL_LOGDRV
;
3720 raw_mbox
[2] = OP_SUP_DEL_LOGDRV
;
3722 rval
= issue_scb_block(adapter
, raw_mbox
);
3729 * mega_support_ext_cdb()
3730 * @adapter: pointer to our soft state
3732 * Find out if this firmware support cdblen > 10
3735 mega_support_ext_cdb(adapter_t
*adapter
)
3737 struct mbox_out mbox
;
3738 unsigned char *raw_mbox
= (u8
*)&mbox
;
3741 memset(&mbox
, 0, sizeof(mbox
));
3743 * issue command to find out if controller supports extended CDBs.
3748 rval
= issue_scb_block(adapter
, raw_mbox
);
3756 * @adapter: pointer to our soft state
3757 * @logdrv: logical drive to be deleted
3759 * Delete the specified logical drive. It is the responsibility of the user
3760 * app to let the OS know about this operation.
3763 mega_del_logdrv(adapter_t
*adapter
, int logdrv
)
3765 unsigned long flags
;
3770 * Stop sending commands to the controller, queue them internally.
3771 * When deletion is complete, ISR will flush the queue.
3773 atomic_set(&adapter
->quiescent
, 1);
3776 * Wait till all the issued commands are complete and there are no
3777 * commands in the pending queue
3779 while (atomic_read(&adapter
->pend_cmds
) > 0 ||
3780 !list_empty(&adapter
->pending_list
))
3781 msleep(1000); /* sleep for 1s */
3783 rval
= mega_do_del_logdrv(adapter
, logdrv
);
3785 spin_lock_irqsave(&adapter
->lock
, flags
);
3788 * If delete operation was successful, add 0x80 to the logical drive
3789 * ids for commands in the pending queue.
3791 if (adapter
->read_ldidmap
) {
3792 struct list_head
*pos
;
3793 list_for_each(pos
, &adapter
->pending_list
) {
3794 scb
= list_entry(pos
, scb_t
, list
);
3795 if (scb
->pthru
->logdrv
< 0x80 )
3796 scb
->pthru
->logdrv
+= 0x80;
3800 atomic_set(&adapter
->quiescent
, 0);
3802 mega_runpendq(adapter
);
3804 spin_unlock_irqrestore(&adapter
->lock
, flags
);
3811 mega_do_del_logdrv(adapter_t
*adapter
, int logdrv
)
3816 memset( &mc
, 0, sizeof(megacmd_t
));
3818 mc
.cmd
= FC_DEL_LOGDRV
;
3819 mc
.opcode
= OP_DEL_LOGDRV
;
3820 mc
.subopcode
= logdrv
;
3822 rval
= mega_internal_command(adapter
, &mc
, NULL
);
3824 /* log this event */
3826 dev_warn(&adapter
->dev
->dev
, "Delete LD-%d failed", logdrv
);
3831 * After deleting first logical drive, the logical drives must be
3832 * addressed by adding 0x80 to the logical drive id.
3834 adapter
->read_ldidmap
= 1;
3841 * mega_get_max_sgl()
3842 * @adapter: pointer to our soft state
3844 * Find out the maximum number of scatter-gather elements supported by this
3845 * version of the firmware
3848 mega_get_max_sgl(adapter_t
*adapter
)
3850 struct mbox_out mbox
;
3851 unsigned char *raw_mbox
= (u8
*)&mbox
;
3853 memset(&mbox
, 0, sizeof(mbox
));
3855 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
3857 mbox
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
3859 raw_mbox
[0] = MAIN_MISC_OPCODE
;
3860 raw_mbox
[2] = GET_MAX_SG_SUPPORT
;
3863 if( issue_scb_block(adapter
, raw_mbox
) ) {
3865 * f/w does not support this command. Choose the default value
3867 adapter
->sglen
= MIN_SGLIST
;
3870 adapter
->sglen
= *((char *)adapter
->mega_buffer
);
3873 * Make sure this is not more than the resources we are
3874 * planning to allocate
3876 if ( adapter
->sglen
> MAX_SGLIST
)
3877 adapter
->sglen
= MAX_SGLIST
;
3885 * mega_support_cluster()
3886 * @adapter: pointer to our soft state
3888 * Find out if this firmware support cluster calls.
3891 mega_support_cluster(adapter_t
*adapter
)
3893 struct mbox_out mbox
;
3894 unsigned char *raw_mbox
= (u8
*)&mbox
;
3896 memset(&mbox
, 0, sizeof(mbox
));
3898 memset((void *)adapter
->mega_buffer
, 0, MEGA_BUFFER_SIZE
);
3900 mbox
.xferaddr
= (u32
)adapter
->buf_dma_handle
;
3903 * Try to get the initiator id. This command will succeed iff the
3904 * clustering is available on this HBA.
3906 raw_mbox
[0] = MEGA_GET_TARGET_ID
;
3908 if( issue_scb_block(adapter
, raw_mbox
) == 0 ) {
3911 * Cluster support available. Get the initiator target id.
3912 * Tell our id to mid-layer too.
3914 adapter
->this_id
= *(u32
*)adapter
->mega_buffer
;
3915 adapter
->host
->this_id
= adapter
->this_id
;
3923 #ifdef CONFIG_PROC_FS
3926 * @adapter: pointer to our soft state
3927 * @dma_handle: DMA address of the buffer
3929 * Issue internal commands while interrupts are available.
3930 * We only issue direct mailbox commands from within the driver. ioctl()
3931 * interface using these routines can issue passthru commands.
3934 mega_adapinq(adapter_t
*adapter
, dma_addr_t dma_handle
)
3938 memset(&mc
, 0, sizeof(megacmd_t
));
3940 if( adapter
->flag
& BOARD_40LD
) {
3941 mc
.cmd
= FC_NEW_CONFIG
;
3942 mc
.opcode
= NC_SUBOP_ENQUIRY3
;
3943 mc
.subopcode
= ENQ3_GET_SOLICITED_FULL
;
3946 mc
.cmd
= MEGA_MBOXCMD_ADPEXTINQ
;
3949 mc
.xferaddr
= (u32
)dma_handle
;
3951 if ( mega_internal_command(adapter
, &mc
, NULL
) != 0 ) {
3960 * mega_internal_dev_inquiry()
3961 * @adapter: pointer to our soft state
3962 * @ch: channel for this device
3963 * @tgt: ID of this device
3964 * @buf_dma_handle: DMA address of the buffer
3966 * Issue the scsi inquiry for the specified device.
3969 mega_internal_dev_inquiry(adapter_t
*adapter
, u8 ch
, u8 tgt
,
3970 dma_addr_t buf_dma_handle
)
3972 mega_passthru
*pthru
;
3973 dma_addr_t pthru_dma_handle
;
3976 struct pci_dev
*pdev
;
3980 * For all internal commands, the buffer must be allocated in <4GB
3983 if( make_local_pdev(adapter
, &pdev
) != 0 ) return -1;
3985 pthru
= dma_alloc_coherent(&pdev
->dev
, sizeof(mega_passthru
),
3986 &pthru_dma_handle
, GFP_KERNEL
);
3988 if( pthru
== NULL
) {
3989 free_local_pdev(pdev
);
3995 pthru
->reqsenselen
= 14;
3996 pthru
->islogical
= 0;
3998 pthru
->channel
= (adapter
->flag
& BOARD_40LD
) ? 0 : ch
;
4000 pthru
->target
= (adapter
->flag
& BOARD_40LD
) ? (ch
<< 4)|tgt
: tgt
;
4004 pthru
->cdb
[0] = INQUIRY
;
4008 pthru
->cdb
[4] = 255;
4012 pthru
->dataxferaddr
= (u32
)buf_dma_handle
;
4013 pthru
->dataxferlen
= 256;
4015 memset(&mc
, 0, sizeof(megacmd_t
));
4017 mc
.cmd
= MEGA_MBOXCMD_PASSTHRU
;
4018 mc
.xferaddr
= (u32
)pthru_dma_handle
;
4020 rval
= mega_internal_command(adapter
, &mc
, pthru
);
4022 dma_free_coherent(&pdev
->dev
, sizeof(mega_passthru
), pthru
,
4025 free_local_pdev(pdev
);
4032 * mega_internal_command()
4033 * @adapter: pointer to our soft state
4034 * @mc: the mailbox command
4035 * @pthru: Passthru structure for DCDB commands
4037 * Issue the internal commands in interrupt mode.
4038 * The last argument is the address of the passthru structure if the command
4039 * to be fired is a passthru command
4041 * Note: parameter 'pthru' is null for non-passthru commands.
4044 mega_internal_command(adapter_t
*adapter
, megacmd_t
*mc
, mega_passthru
*pthru
)
4046 unsigned long flags
;
4051 * The internal commands share one command id and hence are
4052 * serialized. This is so because we want to reserve maximum number of
4053 * available command ids for the I/O commands.
4055 mutex_lock(&adapter
->int_mtx
);
4057 scb
= &adapter
->int_scb
;
4058 memset(scb
, 0, sizeof(scb_t
));
4060 scb
->idx
= CMDID_INT_CMDS
;
4061 scb
->state
|= SCB_ACTIVE
| SCB_PENDQ
;
4063 memcpy(scb
->raw_mbox
, mc
, sizeof(megacmd_t
));
4066 * Is it a passthru command
4068 if (mc
->cmd
== MEGA_MBOXCMD_PASSTHRU
)
4071 spin_lock_irqsave(&adapter
->lock
, flags
);
4072 list_add_tail(&scb
->list
, &adapter
->pending_list
);
4074 * Check if the HBA is in quiescent state, e.g., during a
4075 * delete logical drive opertion. If it is, don't run
4078 if (atomic_read(&adapter
->quiescent
) == 0)
4079 mega_runpendq(adapter
);
4080 spin_unlock_irqrestore(&adapter
->lock
, flags
);
4082 wait_for_completion(&adapter
->int_waitq
);
4084 mc
->status
= rval
= adapter
->int_status
;
4087 * Print a debug message for all failed commands. Applications can use
4090 if (rval
&& trace_level
) {
4091 dev_info(&adapter
->dev
->dev
, "cmd [%x, %x, %x] status:[%x]\n",
4092 mc
->cmd
, mc
->opcode
, mc
->subopcode
, rval
);
4095 mutex_unlock(&adapter
->int_mtx
);
4099 static const struct scsi_host_template megaraid_template
= {
4100 .module
= THIS_MODULE
,
4102 .proc_name
= "megaraid_legacy",
4103 .info
= megaraid_info
,
4104 .queuecommand
= megaraid_queue
,
4105 .bios_param
= megaraid_biosparam
,
4106 .max_sectors
= MAX_SECTORS_PER_IO
,
4107 .can_queue
= MAX_COMMANDS
,
4108 .this_id
= DEFAULT_INITIATOR_ID
,
4109 .sg_tablesize
= MAX_SGLIST
,
4110 .cmd_per_lun
= DEF_CMD_PER_LUN
,
4111 .eh_abort_handler
= megaraid_abort
,
4112 .eh_host_reset_handler
= megaraid_reset
,
4114 .cmd_size
= sizeof(struct megaraid_cmd_priv
),
4118 megaraid_probe_one(struct pci_dev
*pdev
, const struct pci_device_id
*id
)
4120 struct Scsi_Host
*host
;
4122 unsigned long mega_baseport
, tbase
, flag
= 0;
4123 u16 subsysid
, subsysvid
;
4124 u8 pci_bus
, pci_dev_func
;
4126 int error
= -ENODEV
;
4128 if (hba_count
>= MAX_CONTROLLERS
)
4131 if (pci_enable_device(pdev
))
4133 pci_set_master(pdev
);
4135 pci_bus
= pdev
->bus
->number
;
4136 pci_dev_func
= pdev
->devfn
;
4139 * The megaraid3 stuff reports the ID of the Intel part which is not
4140 * remotely specific to the megaraid
4142 if (pdev
->vendor
== PCI_VENDOR_ID_INTEL
) {
4145 * Don't fall over the Compaq management cards using the same
4148 if (pdev
->subsystem_vendor
== PCI_VENDOR_ID_COMPAQ
&&
4149 pdev
->subsystem_device
== 0xC000)
4150 goto out_disable_device
;
4151 /* Now check the magic signature byte */
4152 pci_read_config_word(pdev
, PCI_CONF_AMISIG
, &magic
);
4153 if (magic
!= HBA_SIGNATURE_471
&& magic
!= HBA_SIGNATURE
)
4154 goto out_disable_device
;
4155 /* Ok it is probably a megaraid */
4159 * For these vendor and device ids, signature offsets are not
4160 * valid and 64 bit is implicit
4162 if (id
->driver_data
& BOARD_64BIT
)
4163 flag
|= BOARD_64BIT
;
4167 pci_read_config_dword(pdev
, PCI_CONF_AMISIG64
, &magic64
);
4168 if (magic64
== HBA_SIGNATURE_64BIT
)
4169 flag
|= BOARD_64BIT
;
4172 subsysvid
= pdev
->subsystem_vendor
;
4173 subsysid
= pdev
->subsystem_device
;
4175 dev_notice(&pdev
->dev
, "found 0x%4.04x:0x%4.04x\n",
4176 id
->vendor
, id
->device
);
4178 /* Read the base port and IRQ from PCI */
4179 mega_baseport
= pci_resource_start(pdev
, 0);
4182 tbase
= mega_baseport
;
4183 if (pci_resource_flags(pdev
, 0) & IORESOURCE_MEM
) {
4184 flag
|= BOARD_MEMMAP
;
4186 if (!request_mem_region(mega_baseport
, 128, "megaraid")) {
4187 dev_warn(&pdev
->dev
, "mem region busy!\n");
4188 goto out_disable_device
;
4191 mega_baseport
= (unsigned long)ioremap(mega_baseport
, 128);
4192 if (!mega_baseport
) {
4193 dev_warn(&pdev
->dev
, "could not map hba memory\n");
4194 goto out_release_region
;
4197 flag
|= BOARD_IOMAP
;
4198 mega_baseport
+= 0x10;
4200 if (!request_region(mega_baseport
, 16, "megaraid"))
4201 goto out_disable_device
;
4204 /* Initialize SCSI Host structure */
4205 host
= scsi_host_alloc(&megaraid_template
, sizeof(adapter_t
));
4209 adapter
= (adapter_t
*)host
->hostdata
;
4210 memset(adapter
, 0, sizeof(adapter_t
));
4212 dev_notice(&pdev
->dev
,
4213 "scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n",
4214 host
->host_no
, mega_baseport
, irq
);
4216 adapter
->base
= mega_baseport
;
4217 if (flag
& BOARD_MEMMAP
)
4218 adapter
->mmio_base
= (void __iomem
*) mega_baseport
;
4220 INIT_LIST_HEAD(&adapter
->free_list
);
4221 INIT_LIST_HEAD(&adapter
->pending_list
);
4222 INIT_LIST_HEAD(&adapter
->completed_list
);
4224 adapter
->flag
= flag
;
4225 spin_lock_init(&adapter
->lock
);
4227 host
->cmd_per_lun
= max_cmd_per_lun
;
4228 host
->max_sectors
= max_sectors_per_io
;
4230 adapter
->dev
= pdev
;
4231 adapter
->host
= host
;
4233 adapter
->host
->irq
= irq
;
4235 if (flag
& BOARD_MEMMAP
)
4236 adapter
->host
->base
= tbase
;
4238 adapter
->host
->io_port
= tbase
;
4239 adapter
->host
->n_io_port
= 16;
4242 adapter
->host
->unique_id
= (pci_bus
<< 8) | pci_dev_func
;
4245 * Allocate buffer to issue internal commands.
4247 adapter
->mega_buffer
= dma_alloc_coherent(&adapter
->dev
->dev
,
4249 &adapter
->buf_dma_handle
,
4251 if (!adapter
->mega_buffer
) {
4252 dev_warn(&pdev
->dev
, "out of RAM\n");
4256 adapter
->scb_list
= kmalloc_array(MAX_COMMANDS
, sizeof(scb_t
),
4258 if (!adapter
->scb_list
) {
4259 dev_warn(&pdev
->dev
, "out of RAM\n");
4260 goto out_free_cmd_buffer
;
4263 if (request_irq(irq
, (adapter
->flag
& BOARD_MEMMAP
) ?
4264 megaraid_isr_memmapped
: megaraid_isr_iomapped
,
4265 IRQF_SHARED
, "megaraid", adapter
)) {
4266 dev_warn(&pdev
->dev
, "Couldn't register IRQ %d!\n", irq
);
4267 goto out_free_scb_list
;
4270 if (mega_setup_mailbox(adapter
))
4273 if (mega_query_adapter(adapter
))
4277 * Have checks for some buggy f/w
4279 if ((subsysid
== 0x1111) && (subsysvid
== 0x1111)) {
4283 if (!strcmp(adapter
->fw_version
, "3.00") ||
4284 !strcmp(adapter
->fw_version
, "3.01")) {
4286 dev_warn(&pdev
->dev
,
4287 "Your card is a Dell PERC "
4288 "2/SC RAID controller with "
4289 "firmware\nmegaraid: 3.00 or 3.01. "
4290 "This driver is known to have "
4291 "corruption issues\nmegaraid: with "
4292 "those firmware versions on this "
4293 "specific card. In order\nmegaraid: "
4294 "to protect your data, please upgrade "
4295 "your firmware to version\nmegaraid: "
4296 "3.10 or later, available from the "
4297 "Dell Technical Support web\n"
4298 "megaraid: site at\nhttp://support."
4299 "dell.com/us/en/filelib/download/"
4300 "index.asp?fileid=2940\n"
4306 * If we have a HP 1M(0x60E7)/2M(0x60E8) controller with
4307 * firmware H.01.07, H.01.08, and H.01.09 disable 64 bit
4308 * support, since this firmware cannot handle 64 bit
4311 if ((subsysvid
== PCI_VENDOR_ID_HP
) &&
4312 ((subsysid
== 0x60E7) || (subsysid
== 0x60E8))) {
4316 if (!strcmp(adapter
->fw_version
, "H01.07") ||
4317 !strcmp(adapter
->fw_version
, "H01.08") ||
4318 !strcmp(adapter
->fw_version
, "H01.09") ) {
4319 dev_warn(&pdev
->dev
,
4320 "Firmware H.01.07, "
4321 "H.01.08, and H.01.09 on 1M/2M "
4323 "do not support 64 bit "
4324 "addressing.\nDISABLING "
4325 "64 bit support.\n");
4326 adapter
->flag
&= ~BOARD_64BIT
;
4330 if (mega_is_bios_enabled(adapter
))
4331 mega_hbas
[hba_count
].is_bios_enabled
= 1;
4332 mega_hbas
[hba_count
].hostdata_addr
= adapter
;
4335 * Find out which channel is raid and which is scsi. This is
4338 mega_enum_raid_scsi(adapter
);
4341 * Find out if a logical drive is set as the boot drive. If
4342 * there is one, will make that as the first logical drive.
4343 * ROMB: Do we have to boot from a physical drive. Then all
4344 * the physical drives would appear before the logical disks.
4345 * Else, all the physical drives would be exported to the mid
4346 * layer after logical drives.
4348 mega_get_boot_drv(adapter
);
4350 if (adapter
->boot_pdrv_enabled
) {
4351 j
= adapter
->product_info
.nchannels
;
4352 for( i
= 0; i
< j
; i
++ )
4353 adapter
->logdrv_chan
[i
] = 0;
4354 for( i
= j
; i
< NVIRT_CHAN
+ j
; i
++ )
4355 adapter
->logdrv_chan
[i
] = 1;
4357 for (i
= 0; i
< NVIRT_CHAN
; i
++)
4358 adapter
->logdrv_chan
[i
] = 1;
4359 for (i
= NVIRT_CHAN
; i
< MAX_CHANNELS
+NVIRT_CHAN
; i
++)
4360 adapter
->logdrv_chan
[i
] = 0;
4361 adapter
->mega_ch_class
<<= NVIRT_CHAN
;
4365 * Do we support random deletion and addition of logical
4368 adapter
->read_ldidmap
= 0; /* set it after first logdrv
4370 adapter
->support_random_del
= mega_support_random_del(adapter
);
4372 /* Initialize SCBs */
4373 if (mega_init_scb(adapter
))
4377 * Reset the pending commands counter
4379 atomic_set(&adapter
->pend_cmds
, 0);
4382 * Reset the adapter quiescent flag
4384 atomic_set(&adapter
->quiescent
, 0);
4386 hba_soft_state
[hba_count
] = adapter
;
4389 * Fill in the structure which needs to be passed back to the
4390 * application when it does an ioctl() for controller related
4395 mcontroller
[i
].base
= mega_baseport
;
4396 mcontroller
[i
].irq
= irq
;
4397 mcontroller
[i
].numldrv
= adapter
->numldrv
;
4398 mcontroller
[i
].pcibus
= pci_bus
;
4399 mcontroller
[i
].pcidev
= id
->device
;
4400 mcontroller
[i
].pcifun
= PCI_FUNC (pci_dev_func
);
4401 mcontroller
[i
].pciid
= -1;
4402 mcontroller
[i
].pcivendor
= id
->vendor
;
4403 mcontroller
[i
].pcislot
= PCI_SLOT(pci_dev_func
);
4404 mcontroller
[i
].uid
= (pci_bus
<< 8) | pci_dev_func
;
4407 /* Set the Mode of addressing to 64 bit if we can */
4408 if ((adapter
->flag
& BOARD_64BIT
) && (sizeof(dma_addr_t
) == 8)) {
4409 dma_set_mask(&pdev
->dev
, DMA_BIT_MASK(64));
4410 adapter
->has_64bit_addr
= 1;
4412 dma_set_mask(&pdev
->dev
, DMA_BIT_MASK(32));
4413 adapter
->has_64bit_addr
= 0;
4416 mutex_init(&adapter
->int_mtx
);
4417 init_completion(&adapter
->int_waitq
);
4419 adapter
->this_id
= DEFAULT_INITIATOR_ID
;
4420 adapter
->host
->this_id
= DEFAULT_INITIATOR_ID
;
4422 #if MEGA_HAVE_CLUSTERING
4424 * Is cluster support enabled on this controller
4425 * Note: In a cluster the HBAs ( the initiators ) will have
4426 * different target IDs and we cannot assume it to be 7. Call
4427 * to mega_support_cluster() will get the target ids also if
4428 * the cluster support is available
4430 adapter
->has_cluster
= mega_support_cluster(adapter
);
4431 if (adapter
->has_cluster
) {
4432 dev_notice(&pdev
->dev
,
4433 "Cluster driver, initiator id:%d\n",
4438 pci_set_drvdata(pdev
, host
);
4440 mega_create_proc_entry(hba_count
, mega_proc_dir_entry
);
4442 error
= scsi_add_host(host
, &pdev
->dev
);
4446 scsi_scan_host(host
);
4451 dma_free_coherent(&adapter
->dev
->dev
, sizeof(mbox64_t
),
4452 adapter
->una_mbox64
, adapter
->una_mbox64_dma
);
4454 free_irq(adapter
->host
->irq
, adapter
);
4456 kfree(adapter
->scb_list
);
4457 out_free_cmd_buffer
:
4458 dma_free_coherent(&adapter
->dev
->dev
, MEGA_BUFFER_SIZE
,
4459 adapter
->mega_buffer
, adapter
->buf_dma_handle
);
4461 scsi_host_put(host
);
4463 if (flag
& BOARD_MEMMAP
)
4464 iounmap((void *)mega_baseport
);
4466 if (flag
& BOARD_MEMMAP
)
4467 release_mem_region(tbase
, 128);
4469 release_region(mega_baseport
, 16);
4471 pci_disable_device(pdev
);
4477 __megaraid_shutdown(adapter_t
*adapter
)
4479 u_char raw_mbox
[sizeof(struct mbox_out
)];
4480 mbox_t
*mbox
= (mbox_t
*)raw_mbox
;
4483 /* Flush adapter cache */
4484 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
4485 raw_mbox
[0] = FLUSH_ADAPTER
;
4487 free_irq(adapter
->host
->irq
, adapter
);
4489 /* Issue a blocking (interrupts disabled) command to the card */
4490 issue_scb_block(adapter
, raw_mbox
);
4492 /* Flush disks cache */
4493 memset(&mbox
->m_out
, 0, sizeof(raw_mbox
));
4494 raw_mbox
[0] = FLUSH_SYSTEM
;
4496 /* Issue a blocking (interrupts disabled) command to the card */
4497 issue_scb_block(adapter
, raw_mbox
);
4499 if (atomic_read(&adapter
->pend_cmds
) > 0)
4500 dev_warn(&adapter
->dev
->dev
, "pending commands!!\n");
4503 * Have a delibrate delay to make sure all the caches are
4506 for (i
= 0; i
<= 10; i
++)
4511 megaraid_remove_one(struct pci_dev
*pdev
)
4513 struct Scsi_Host
*host
= pci_get_drvdata(pdev
);
4514 adapter_t
*adapter
= (adapter_t
*)host
->hostdata
;
4515 char buf
[12] = { 0 };
4517 scsi_remove_host(host
);
4519 __megaraid_shutdown(adapter
);
4521 /* Free our resources */
4522 if (adapter
->flag
& BOARD_MEMMAP
) {
4523 iounmap((void *)adapter
->base
);
4524 release_mem_region(adapter
->host
->base
, 128);
4526 release_region(adapter
->base
, 16);
4528 mega_free_sgl(adapter
);
4530 sprintf(buf
, "hba%d", adapter
->host
->host_no
);
4531 remove_proc_subtree(buf
, mega_proc_dir_entry
);
4533 dma_free_coherent(&adapter
->dev
->dev
, MEGA_BUFFER_SIZE
,
4534 adapter
->mega_buffer
, adapter
->buf_dma_handle
);
4535 kfree(adapter
->scb_list
);
4536 dma_free_coherent(&adapter
->dev
->dev
, sizeof(mbox64_t
),
4537 adapter
->una_mbox64
, adapter
->una_mbox64_dma
);
4539 scsi_host_put(host
);
4540 pci_disable_device(pdev
);
4546 megaraid_shutdown(struct pci_dev
*pdev
)
4548 struct Scsi_Host
*host
= pci_get_drvdata(pdev
);
4549 adapter_t
*adapter
= (adapter_t
*)host
->hostdata
;
4551 __megaraid_shutdown(adapter
);
4554 static struct pci_device_id megaraid_pci_tbl
[] = {
4555 {PCI_VENDOR_ID_AMI
, PCI_DEVICE_ID_AMI_MEGARAID
,
4556 PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
4557 {PCI_VENDOR_ID_AMI
, PCI_DEVICE_ID_AMI_MEGARAID2
,
4558 PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
4559 {PCI_VENDOR_ID_INTEL
, PCI_DEVICE_ID_AMI_MEGARAID3
,
4560 PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0},
4563 MODULE_DEVICE_TABLE(pci
, megaraid_pci_tbl
);
4565 static struct pci_driver megaraid_pci_driver
= {
4566 .name
= "megaraid_legacy",
4567 .id_table
= megaraid_pci_tbl
,
4568 .probe
= megaraid_probe_one
,
4569 .remove
= megaraid_remove_one
,
4570 .shutdown
= megaraid_shutdown
,
4573 static int __init
megaraid_init(void)
4577 if ((max_cmd_per_lun
<= 0) || (max_cmd_per_lun
> MAX_CMD_PER_LUN
))
4578 max_cmd_per_lun
= MAX_CMD_PER_LUN
;
4579 if (max_mbox_busy_wait
> MBOX_BUSY_WAIT
)
4580 max_mbox_busy_wait
= MBOX_BUSY_WAIT
;
4582 #ifdef CONFIG_PROC_FS
4583 mega_proc_dir_entry
= proc_mkdir("megaraid", NULL
);
4584 if (!mega_proc_dir_entry
) {
4586 "megaraid: failed to create megaraid root\n");
4589 error
= pci_register_driver(&megaraid_pci_driver
);
4591 #ifdef CONFIG_PROC_FS
4592 remove_proc_entry("megaraid", NULL
);
4598 * Register the driver as a character device, for applications
4599 * to access it for ioctls.
4600 * First argument (major) to register_chrdev implies a dynamic
4601 * major number allocation.
4603 major
= register_chrdev(0, "megadev_legacy", &megadev_fops
);
4606 "megaraid: failed to register char device\n");
4612 static void __exit
megaraid_exit(void)
4615 * Unregister the character device interface to the driver.
4617 unregister_chrdev(major
, "megadev_legacy");
4619 pci_unregister_driver(&megaraid_pci_driver
);
4621 #ifdef CONFIG_PROC_FS
4622 remove_proc_entry("megaraid", NULL
);
4626 module_init(megaraid_init
);
4627 module_exit(megaraid_exit
);
4629 /* vi: set ts=8 sw=8 tw=78: */