2 * HighPoint RR3xxx/4xxx controller driver for Linux
3 * Copyright (C) 2006-2007 HighPoint Technologies, Inc. All Rights Reserved.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * Please report bugs/comments/suggestions to linux@highpoint-tech.com
16 * For more information, visit http://www.highpoint-tech.com
18 #include <linux/module.h>
19 #include <linux/types.h>
20 #include <linux/string.h>
21 #include <linux/kernel.h>
22 #include <linux/pci.h>
23 #include <linux/interrupt.h>
24 #include <linux/errno.h>
25 #include <linux/delay.h>
26 #include <linux/timer.h>
27 #include <linux/spinlock.h>
28 #include <linux/hdreg.h>
29 #include <asm/uaccess.h>
31 #include <asm/div64.h>
32 #include <scsi/scsi_cmnd.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi.h>
35 #include <scsi/scsi_tcq.h>
36 #include <scsi/scsi_host.h>
40 MODULE_AUTHOR("HighPoint Technologies, Inc.");
41 MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver");
43 static char driver_name
[] = "hptiop";
44 static const char driver_name_long
[] = "RocketRAID 3xxx/4xxx Controller driver";
45 static const char driver_ver
[] = "v1.3 (071203)";
47 static int iop_send_sync_msg(struct hptiop_hba
*hba
, u32 msg
, u32 millisec
);
48 static void hptiop_finish_scsi_req(struct hptiop_hba
*hba
, u32 tag
,
49 struct hpt_iop_request_scsi_command
*req
);
50 static void hptiop_host_request_callback_itl(struct hptiop_hba
*hba
, u32 tag
);
51 static void hptiop_iop_request_callback_itl(struct hptiop_hba
*hba
, u32 tag
);
52 static void hptiop_message_callback(struct hptiop_hba
*hba
, u32 msg
);
54 static int iop_wait_ready_itl(struct hptiop_hba
*hba
, u32 millisec
)
59 for (i
= 0; i
< millisec
; i
++) {
60 req
= readl(&hba
->u
.itl
.iop
->inbound_queue
);
61 if (req
!= IOPMU_QUEUE_EMPTY
)
66 if (req
!= IOPMU_QUEUE_EMPTY
) {
67 writel(req
, &hba
->u
.itl
.iop
->outbound_queue
);
68 readl(&hba
->u
.itl
.iop
->outbound_intstatus
);
75 static int iop_wait_ready_mv(struct hptiop_hba
*hba
, u32 millisec
)
77 return iop_send_sync_msg(hba
, IOPMU_INBOUND_MSG0_NOP
, millisec
);
80 static void hptiop_request_callback_itl(struct hptiop_hba
*hba
, u32 tag
)
82 if (tag
& IOPMU_QUEUE_ADDR_HOST_BIT
)
83 hptiop_host_request_callback_itl(hba
,
84 tag
& ~IOPMU_QUEUE_ADDR_HOST_BIT
);
86 hptiop_iop_request_callback_itl(hba
, tag
);
89 static void hptiop_drain_outbound_queue_itl(struct hptiop_hba
*hba
)
93 while ((req
= readl(&hba
->u
.itl
.iop
->outbound_queue
)) !=
96 if (req
& IOPMU_QUEUE_MASK_HOST_BITS
)
97 hptiop_request_callback_itl(hba
, req
);
99 struct hpt_iop_request_header __iomem
* p
;
101 p
= (struct hpt_iop_request_header __iomem
*)
102 ((char __iomem
*)hba
->u
.itl
.iop
+ req
);
104 if (readl(&p
->flags
) & IOP_REQUEST_FLAG_SYNC_REQUEST
) {
105 if (readl(&p
->context
))
106 hptiop_request_callback_itl(hba
, req
);
108 writel(1, &p
->context
);
111 hptiop_request_callback_itl(hba
, req
);
116 static int iop_intr_itl(struct hptiop_hba
*hba
)
118 struct hpt_iopmu_itl __iomem
*iop
= hba
->u
.itl
.iop
;
122 status
= readl(&iop
->outbound_intstatus
);
124 if (status
& IOPMU_OUTBOUND_INT_MSG0
) {
125 u32 msg
= readl(&iop
->outbound_msgaddr0
);
127 dprintk("received outbound msg %x\n", msg
);
128 writel(IOPMU_OUTBOUND_INT_MSG0
, &iop
->outbound_intstatus
);
129 hptiop_message_callback(hba
, msg
);
133 if (status
& IOPMU_OUTBOUND_INT_POSTQUEUE
) {
134 hptiop_drain_outbound_queue_itl(hba
);
141 static u64
mv_outbound_read(struct hpt_iopmu_mv __iomem
*mu
)
143 u32 outbound_tail
= readl(&mu
->outbound_tail
);
144 u32 outbound_head
= readl(&mu
->outbound_head
);
146 if (outbound_tail
!= outbound_head
) {
149 memcpy_fromio(&p
, &mu
->outbound_q
[mu
->outbound_tail
], 8);
152 if (outbound_tail
== MVIOP_QUEUE_LEN
)
154 writel(outbound_tail
, &mu
->outbound_tail
);
160 static void mv_inbound_write(u64 p
, struct hptiop_hba
*hba
)
162 u32 inbound_head
= readl(&hba
->u
.mv
.mu
->inbound_head
);
163 u32 head
= inbound_head
+ 1;
165 if (head
== MVIOP_QUEUE_LEN
)
168 memcpy_toio(&hba
->u
.mv
.mu
->inbound_q
[inbound_head
], &p
, 8);
169 writel(head
, &hba
->u
.mv
.mu
->inbound_head
);
170 writel(MVIOP_MU_INBOUND_INT_POSTQUEUE
,
171 &hba
->u
.mv
.regs
->inbound_doorbell
);
174 static void hptiop_request_callback_mv(struct hptiop_hba
*hba
, u64 tag
)
176 u32 req_type
= (tag
>> 5) & 0x7;
177 struct hpt_iop_request_scsi_command
*req
;
179 dprintk("hptiop_request_callback_mv: tag=%llx\n", tag
);
181 BUG_ON((tag
& MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT
) == 0);
184 case IOP_REQUEST_TYPE_GET_CONFIG
:
185 case IOP_REQUEST_TYPE_SET_CONFIG
:
189 case IOP_REQUEST_TYPE_SCSI_COMMAND
:
190 req
= hba
->reqs
[tag
>> 8].req_virt
;
191 if (likely(tag
& MVIOP_MU_QUEUE_REQUEST_RESULT_BIT
))
192 req
->header
.result
= cpu_to_le32(IOP_RESULT_SUCCESS
);
194 hptiop_finish_scsi_req(hba
, tag
>>8, req
);
202 static int iop_intr_mv(struct hptiop_hba
*hba
)
207 status
= readl(&hba
->u
.mv
.regs
->outbound_doorbell
);
208 writel(~status
, &hba
->u
.mv
.regs
->outbound_doorbell
);
210 if (status
& MVIOP_MU_OUTBOUND_INT_MSG
) {
212 msg
= readl(&hba
->u
.mv
.mu
->outbound_msg
);
213 dprintk("received outbound msg %x\n", msg
);
214 hptiop_message_callback(hba
, msg
);
218 if (status
& MVIOP_MU_OUTBOUND_INT_POSTQUEUE
) {
221 while ((tag
= mv_outbound_read(hba
->u
.mv
.mu
)))
222 hptiop_request_callback_mv(hba
, tag
);
229 static int iop_send_sync_request_itl(struct hptiop_hba
*hba
,
230 void __iomem
*_req
, u32 millisec
)
232 struct hpt_iop_request_header __iomem
*req
= _req
;
235 writel(readl(&req
->flags
) | IOP_REQUEST_FLAG_SYNC_REQUEST
, &req
->flags
);
236 writel(0, &req
->context
);
237 writel((unsigned long)req
- (unsigned long)hba
->u
.itl
.iop
,
238 &hba
->u
.itl
.iop
->inbound_queue
);
239 readl(&hba
->u
.itl
.iop
->outbound_intstatus
);
241 for (i
= 0; i
< millisec
; i
++) {
243 if (readl(&req
->context
))
251 static int iop_send_sync_request_mv(struct hptiop_hba
*hba
,
252 u32 size_bits
, u32 millisec
)
254 struct hpt_iop_request_header
*reqhdr
= hba
->u
.mv
.internal_req
;
258 reqhdr
->flags
|= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST
);
259 mv_inbound_write(hba
->u
.mv
.internal_req_phy
|
260 MVIOP_MU_QUEUE_ADDR_HOST_BIT
| size_bits
, hba
);
262 for (i
= 0; i
< millisec
; i
++) {
271 static void hptiop_post_msg_itl(struct hptiop_hba
*hba
, u32 msg
)
273 writel(msg
, &hba
->u
.itl
.iop
->inbound_msgaddr0
);
274 readl(&hba
->u
.itl
.iop
->outbound_intstatus
);
277 static void hptiop_post_msg_mv(struct hptiop_hba
*hba
, u32 msg
)
279 writel(msg
, &hba
->u
.mv
.mu
->inbound_msg
);
280 writel(MVIOP_MU_INBOUND_INT_MSG
, &hba
->u
.mv
.regs
->inbound_doorbell
);
281 readl(&hba
->u
.mv
.regs
->inbound_doorbell
);
284 static int iop_send_sync_msg(struct hptiop_hba
*hba
, u32 msg
, u32 millisec
)
289 hba
->ops
->post_msg(hba
, msg
);
291 for (i
= 0; i
< millisec
; i
++) {
292 spin_lock_irq(hba
->host
->host_lock
);
293 hba
->ops
->iop_intr(hba
);
294 spin_unlock_irq(hba
->host
->host_lock
);
300 return hba
->msg_done
? 0 : -1;
303 static int iop_get_config_itl(struct hptiop_hba
*hba
,
304 struct hpt_iop_request_get_config
*config
)
307 struct hpt_iop_request_get_config __iomem
*req
;
309 req32
= readl(&hba
->u
.itl
.iop
->inbound_queue
);
310 if (req32
== IOPMU_QUEUE_EMPTY
)
313 req
= (struct hpt_iop_request_get_config __iomem
*)
314 ((unsigned long)hba
->u
.itl
.iop
+ req32
);
316 writel(0, &req
->header
.flags
);
317 writel(IOP_REQUEST_TYPE_GET_CONFIG
, &req
->header
.type
);
318 writel(sizeof(struct hpt_iop_request_get_config
), &req
->header
.size
);
319 writel(IOP_RESULT_PENDING
, &req
->header
.result
);
321 if (iop_send_sync_request_itl(hba
, req
, 20000)) {
322 dprintk("Get config send cmd failed\n");
326 memcpy_fromio(config
, req
, sizeof(*config
));
327 writel(req32
, &hba
->u
.itl
.iop
->outbound_queue
);
331 static int iop_get_config_mv(struct hptiop_hba
*hba
,
332 struct hpt_iop_request_get_config
*config
)
334 struct hpt_iop_request_get_config
*req
= hba
->u
.mv
.internal_req
;
336 req
->header
.flags
= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT
);
337 req
->header
.type
= cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG
);
339 cpu_to_le32(sizeof(struct hpt_iop_request_get_config
));
340 req
->header
.result
= cpu_to_le32(IOP_RESULT_PENDING
);
341 req
->header
.context
= cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG
<<5);
342 req
->header
.context_hi32
= 0;
344 if (iop_send_sync_request_mv(hba
, 0, 20000)) {
345 dprintk("Get config send cmd failed\n");
349 memcpy(config
, req
, sizeof(struct hpt_iop_request_get_config
));
353 static int iop_set_config_itl(struct hptiop_hba
*hba
,
354 struct hpt_iop_request_set_config
*config
)
357 struct hpt_iop_request_set_config __iomem
*req
;
359 req32
= readl(&hba
->u
.itl
.iop
->inbound_queue
);
360 if (req32
== IOPMU_QUEUE_EMPTY
)
363 req
= (struct hpt_iop_request_set_config __iomem
*)
364 ((unsigned long)hba
->u
.itl
.iop
+ req32
);
366 memcpy_toio((u8 __iomem
*)req
+ sizeof(struct hpt_iop_request_header
),
367 (u8
*)config
+ sizeof(struct hpt_iop_request_header
),
368 sizeof(struct hpt_iop_request_set_config
) -
369 sizeof(struct hpt_iop_request_header
));
371 writel(0, &req
->header
.flags
);
372 writel(IOP_REQUEST_TYPE_SET_CONFIG
, &req
->header
.type
);
373 writel(sizeof(struct hpt_iop_request_set_config
), &req
->header
.size
);
374 writel(IOP_RESULT_PENDING
, &req
->header
.result
);
376 if (iop_send_sync_request_itl(hba
, req
, 20000)) {
377 dprintk("Set config send cmd failed\n");
381 writel(req32
, &hba
->u
.itl
.iop
->outbound_queue
);
385 static int iop_set_config_mv(struct hptiop_hba
*hba
,
386 struct hpt_iop_request_set_config
*config
)
388 struct hpt_iop_request_set_config
*req
= hba
->u
.mv
.internal_req
;
390 memcpy(req
, config
, sizeof(struct hpt_iop_request_set_config
));
391 req
->header
.flags
= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT
);
392 req
->header
.type
= cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG
);
394 cpu_to_le32(sizeof(struct hpt_iop_request_set_config
));
395 req
->header
.result
= cpu_to_le32(IOP_RESULT_PENDING
);
396 req
->header
.context
= cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG
<<5);
397 req
->header
.context_hi32
= 0;
399 if (iop_send_sync_request_mv(hba
, 0, 20000)) {
400 dprintk("Set config send cmd failed\n");
407 static void hptiop_enable_intr_itl(struct hptiop_hba
*hba
)
409 writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE
| IOPMU_OUTBOUND_INT_MSG0
),
410 &hba
->u
.itl
.iop
->outbound_intmask
);
413 static void hptiop_enable_intr_mv(struct hptiop_hba
*hba
)
415 writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE
| MVIOP_MU_OUTBOUND_INT_MSG
,
416 &hba
->u
.mv
.regs
->outbound_intmask
);
419 static int hptiop_initialize_iop(struct hptiop_hba
*hba
)
421 /* enable interrupts */
422 hba
->ops
->enable_intr(hba
);
424 hba
->initialized
= 1;
426 /* start background tasks */
427 if (iop_send_sync_msg(hba
,
428 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK
, 5000)) {
429 printk(KERN_ERR
"scsi%d: fail to start background task\n",
436 static void __iomem
*hptiop_map_pci_bar(struct hptiop_hba
*hba
, int index
)
438 u32 mem_base_phy
, length
;
439 void __iomem
*mem_base_virt
;
441 struct pci_dev
*pcidev
= hba
->pcidev
;
444 if (!(pci_resource_flags(pcidev
, index
) & IORESOURCE_MEM
)) {
445 printk(KERN_ERR
"scsi%d: pci resource invalid\n",
450 mem_base_phy
= pci_resource_start(pcidev
, index
);
451 length
= pci_resource_len(pcidev
, index
);
452 mem_base_virt
= ioremap(mem_base_phy
, length
);
454 if (!mem_base_virt
) {
455 printk(KERN_ERR
"scsi%d: Fail to ioremap memory space\n",
459 return mem_base_virt
;
462 static int hptiop_map_pci_bar_itl(struct hptiop_hba
*hba
)
464 hba
->u
.itl
.iop
= hptiop_map_pci_bar(hba
, 0);
471 static void hptiop_unmap_pci_bar_itl(struct hptiop_hba
*hba
)
473 iounmap(hba
->u
.itl
.iop
);
476 static int hptiop_map_pci_bar_mv(struct hptiop_hba
*hba
)
478 hba
->u
.mv
.regs
= hptiop_map_pci_bar(hba
, 0);
479 if (hba
->u
.mv
.regs
== 0)
482 hba
->u
.mv
.mu
= hptiop_map_pci_bar(hba
, 2);
483 if (hba
->u
.mv
.mu
== 0) {
484 iounmap(hba
->u
.mv
.regs
);
491 static void hptiop_unmap_pci_bar_mv(struct hptiop_hba
*hba
)
493 iounmap(hba
->u
.mv
.regs
);
494 iounmap(hba
->u
.mv
.mu
);
497 static void hptiop_message_callback(struct hptiop_hba
*hba
, u32 msg
)
499 dprintk("iop message 0x%x\n", msg
);
501 if (msg
== IOPMU_INBOUND_MSG0_NOP
)
504 if (!hba
->initialized
)
507 if (msg
== IOPMU_INBOUND_MSG0_RESET
) {
508 atomic_set(&hba
->resetting
, 0);
509 wake_up(&hba
->reset_wq
);
511 else if (msg
<= IOPMU_INBOUND_MSG0_MAX
)
515 static struct hptiop_request
*get_req(struct hptiop_hba
*hba
)
517 struct hptiop_request
*ret
;
519 dprintk("get_req : req=%p\n", hba
->req_list
);
523 hba
->req_list
= ret
->next
;
528 static void free_req(struct hptiop_hba
*hba
, struct hptiop_request
*req
)
530 dprintk("free_req(%d, %p)\n", req
->index
, req
);
531 req
->next
= hba
->req_list
;
535 static void hptiop_finish_scsi_req(struct hptiop_hba
*hba
, u32 tag
,
536 struct hpt_iop_request_scsi_command
*req
)
538 struct scsi_cmnd
*scp
;
540 dprintk("hptiop_finish_scsi_req: req=%p, type=%d, "
541 "result=%d, context=0x%x tag=%d\n",
542 req
, req
->header
.type
, req
->header
.result
,
543 req
->header
.context
, tag
);
545 BUG_ON(!req
->header
.result
);
546 BUG_ON(req
->header
.type
!= cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND
));
548 scp
= hba
->reqs
[tag
].scp
;
550 if (HPT_SCP(scp
)->mapped
)
553 switch (le32_to_cpu(req
->header
.result
)) {
554 case IOP_RESULT_SUCCESS
:
556 scsi_bufflen(scp
) - le32_to_cpu(req
->dataxfer_length
));
557 scp
->result
= (DID_OK
<<16);
559 case IOP_RESULT_BAD_TARGET
:
560 scp
->result
= (DID_BAD_TARGET
<<16);
562 case IOP_RESULT_BUSY
:
563 scp
->result
= (DID_BUS_BUSY
<<16);
565 case IOP_RESULT_RESET
:
566 scp
->result
= (DID_RESET
<<16);
568 case IOP_RESULT_FAIL
:
569 scp
->result
= (DID_ERROR
<<16);
571 case IOP_RESULT_INVALID_REQUEST
:
572 scp
->result
= (DID_ABORT
<<16);
574 case IOP_RESULT_CHECK_CONDITION
:
576 scsi_bufflen(scp
) - le32_to_cpu(req
->dataxfer_length
));
577 scp
->result
= SAM_STAT_CHECK_CONDITION
;
578 memcpy(scp
->sense_buffer
, &req
->sg_list
,
579 min_t(size_t, SCSI_SENSE_BUFFERSIZE
,
580 le32_to_cpu(req
->dataxfer_length
)));
584 scp
->result
= ((DRIVER_INVALID
|SUGGEST_ABORT
)<<24) |
589 dprintk("scsi_done(%p)\n", scp
);
591 free_req(hba
, &hba
->reqs
[tag
]);
594 static void hptiop_host_request_callback_itl(struct hptiop_hba
*hba
, u32 _tag
)
596 struct hpt_iop_request_scsi_command
*req
;
599 if (hba
->iopintf_v2
) {
600 tag
= _tag
& ~IOPMU_QUEUE_REQUEST_RESULT_BIT
;
601 req
= hba
->reqs
[tag
].req_virt
;
602 if (likely(_tag
& IOPMU_QUEUE_REQUEST_RESULT_BIT
))
603 req
->header
.result
= cpu_to_le32(IOP_RESULT_SUCCESS
);
606 req
= hba
->reqs
[tag
].req_virt
;
609 hptiop_finish_scsi_req(hba
, tag
, req
);
612 void hptiop_iop_request_callback_itl(struct hptiop_hba
*hba
, u32 tag
)
614 struct hpt_iop_request_header __iomem
*req
;
615 struct hpt_iop_request_ioctl_command __iomem
*p
;
616 struct hpt_ioctl_k
*arg
;
618 req
= (struct hpt_iop_request_header __iomem
*)
619 ((unsigned long)hba
->u
.itl
.iop
+ tag
);
620 dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, "
621 "result=%d, context=0x%x tag=%d\n",
622 req
, readl(&req
->type
), readl(&req
->result
),
623 readl(&req
->context
), tag
);
625 BUG_ON(!readl(&req
->result
));
626 BUG_ON(readl(&req
->type
) != IOP_REQUEST_TYPE_IOCTL_COMMAND
);
628 p
= (struct hpt_iop_request_ioctl_command __iomem
*)req
;
629 arg
= (struct hpt_ioctl_k
*)(unsigned long)
630 (readl(&req
->context
) |
631 ((u64
)readl(&req
->context_hi32
)<<32));
633 if (readl(&req
->result
) == IOP_RESULT_SUCCESS
) {
634 arg
->result
= HPT_IOCTL_RESULT_OK
;
636 if (arg
->outbuf_size
)
637 memcpy_fromio(arg
->outbuf
,
638 &p
->buf
[(readl(&p
->inbuf_size
) + 3)& ~3],
641 if (arg
->bytes_returned
)
642 *arg
->bytes_returned
= arg
->outbuf_size
;
645 arg
->result
= HPT_IOCTL_RESULT_FAILED
;
648 writel(tag
, &hba
->u
.itl
.iop
->outbound_queue
);
651 static irqreturn_t
hptiop_intr(int irq
, void *dev_id
)
653 struct hptiop_hba
*hba
= dev_id
;
657 spin_lock_irqsave(hba
->host
->host_lock
, flags
);
658 handled
= hba
->ops
->iop_intr(hba
);
659 spin_unlock_irqrestore(hba
->host
->host_lock
, flags
);
664 static int hptiop_buildsgl(struct scsi_cmnd
*scp
, struct hpt_iopsg
*psg
)
666 struct Scsi_Host
*host
= scp
->device
->host
;
667 struct hptiop_hba
*hba
= (struct hptiop_hba
*)host
->hostdata
;
668 struct scatterlist
*sg
;
671 nseg
= scsi_dma_map(scp
);
676 HPT_SCP(scp
)->sgcnt
= nseg
;
677 HPT_SCP(scp
)->mapped
= 1;
679 BUG_ON(HPT_SCP(scp
)->sgcnt
> hba
->max_sg_descriptors
);
681 scsi_for_each_sg(scp
, sg
, HPT_SCP(scp
)->sgcnt
, idx
) {
682 psg
[idx
].pci_address
= cpu_to_le64(sg_dma_address(sg
));
683 psg
[idx
].size
= cpu_to_le32(sg_dma_len(sg
));
684 psg
[idx
].eot
= (idx
== HPT_SCP(scp
)->sgcnt
- 1) ?
687 return HPT_SCP(scp
)->sgcnt
;
690 static void hptiop_post_req_itl(struct hptiop_hba
*hba
,
691 struct hptiop_request
*_req
)
693 struct hpt_iop_request_header
*reqhdr
= _req
->req_virt
;
695 reqhdr
->context
= cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT
|
697 reqhdr
->context_hi32
= 0;
699 if (hba
->iopintf_v2
) {
702 size
= le32_to_cpu(reqhdr
->size
);
704 size_bits
= IOPMU_QUEUE_REQUEST_SIZE_BIT
;
706 size_bits
= IOPMU_QUEUE_ADDR_HOST_BIT
;
708 size_bits
= IOPMU_QUEUE_REQUEST_SIZE_BIT
|
709 IOPMU_QUEUE_ADDR_HOST_BIT
;
710 writel(_req
->req_shifted_phy
| size_bits
,
711 &hba
->u
.itl
.iop
->inbound_queue
);
713 writel(_req
->req_shifted_phy
| IOPMU_QUEUE_ADDR_HOST_BIT
,
714 &hba
->u
.itl
.iop
->inbound_queue
);
717 static void hptiop_post_req_mv(struct hptiop_hba
*hba
,
718 struct hptiop_request
*_req
)
720 struct hpt_iop_request_header
*reqhdr
= _req
->req_virt
;
723 reqhdr
->context
= cpu_to_le32(_req
->index
<<8 |
724 IOP_REQUEST_TYPE_SCSI_COMMAND
<<5);
725 reqhdr
->context_hi32
= 0;
726 size
= le32_to_cpu(reqhdr
->size
);
730 else if (size
<= 256*2)
732 else if (size
<= 256*3)
737 mv_inbound_write((_req
->req_shifted_phy
<< 5) |
738 MVIOP_MU_QUEUE_ADDR_HOST_BIT
| size_bit
, hba
);
741 static int hptiop_queuecommand(struct scsi_cmnd
*scp
,
742 void (*done
)(struct scsi_cmnd
*))
744 struct Scsi_Host
*host
= scp
->device
->host
;
745 struct hptiop_hba
*hba
= (struct hptiop_hba
*)host
->hostdata
;
746 struct hpt_iop_request_scsi_command
*req
;
748 struct hptiop_request
*_req
;
751 scp
->scsi_done
= done
;
755 dprintk("hptiop_queuecmd : no free req\n");
756 return SCSI_MLQUEUE_HOST_BUSY
;
761 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%d cdb=(%x-%x-%x) "
762 "req_index=%d, req=%p\n",
764 host
->host_no
, scp
->device
->channel
,
765 scp
->device
->id
, scp
->device
->lun
,
766 ((u32
*)scp
->cmnd
)[0],
767 ((u32
*)scp
->cmnd
)[1],
768 ((u32
*)scp
->cmnd
)[2],
769 _req
->index
, _req
->req_virt
);
773 if (scp
->device
->channel
|| scp
->device
->lun
||
774 scp
->device
->id
> hba
->max_devices
) {
775 scp
->result
= DID_BAD_TARGET
<< 16;
780 req
= _req
->req_virt
;
782 /* build S/G table */
783 sg_count
= hptiop_buildsgl(scp
, req
->sg_list
);
785 HPT_SCP(scp
)->mapped
= 0;
787 req
->header
.flags
= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT
);
788 req
->header
.type
= cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND
);
789 req
->header
.result
= cpu_to_le32(IOP_RESULT_PENDING
);
790 req
->dataxfer_length
= cpu_to_le32(scsi_bufflen(scp
));
791 req
->channel
= scp
->device
->channel
;
792 req
->target
= scp
->device
->id
;
793 req
->lun
= scp
->device
->lun
;
794 req
->header
.size
= cpu_to_le32(
795 sizeof(struct hpt_iop_request_scsi_command
)
796 - sizeof(struct hpt_iopsg
)
797 + sg_count
* sizeof(struct hpt_iopsg
));
799 memcpy(req
->cdb
, scp
->cmnd
, sizeof(req
->cdb
));
800 hba
->ops
->post_req(hba
, _req
);
804 dprintk("scsi_done(scp=%p)\n", scp
);
809 static const char *hptiop_info(struct Scsi_Host
*host
)
811 return driver_name_long
;
814 static int hptiop_reset_hba(struct hptiop_hba
*hba
)
816 if (atomic_xchg(&hba
->resetting
, 1) == 0) {
817 atomic_inc(&hba
->reset_count
);
818 hba
->ops
->post_msg(hba
, IOPMU_INBOUND_MSG0_RESET
);
821 wait_event_timeout(hba
->reset_wq
,
822 atomic_read(&hba
->resetting
) == 0, 60 * HZ
);
824 if (atomic_read(&hba
->resetting
)) {
825 /* IOP is in unkown state, abort reset */
826 printk(KERN_ERR
"scsi%d: reset failed\n", hba
->host
->host_no
);
830 if (iop_send_sync_msg(hba
,
831 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK
, 5000)) {
832 dprintk("scsi%d: fail to start background task\n",
839 static int hptiop_reset(struct scsi_cmnd
*scp
)
841 struct Scsi_Host
* host
= scp
->device
->host
;
842 struct hptiop_hba
* hba
= (struct hptiop_hba
*)host
->hostdata
;
844 printk(KERN_WARNING
"hptiop_reset(%d/%d/%d) scp=%p\n",
845 scp
->device
->host
->host_no
, scp
->device
->channel
,
846 scp
->device
->id
, scp
);
848 return hptiop_reset_hba(hba
)? FAILED
: SUCCESS
;
851 static int hptiop_adjust_disk_queue_depth(struct scsi_device
*sdev
,
854 struct hptiop_hba
*hba
= (struct hptiop_hba
*)sdev
->host
->hostdata
;
856 if (queue_depth
> hba
->max_requests
)
857 queue_depth
= hba
->max_requests
;
858 scsi_adjust_queue_depth(sdev
, MSG_ORDERED_TAG
, queue_depth
);
862 static ssize_t
hptiop_show_version(struct device
*dev
,
863 struct device_attribute
*attr
, char *buf
)
865 return snprintf(buf
, PAGE_SIZE
, "%s\n", driver_ver
);
868 static ssize_t
hptiop_show_fw_version(struct device
*dev
,
869 struct device_attribute
*attr
, char *buf
)
871 struct Scsi_Host
*host
= class_to_shost(dev
);
872 struct hptiop_hba
*hba
= (struct hptiop_hba
*)host
->hostdata
;
874 return snprintf(buf
, PAGE_SIZE
, "%d.%d.%d.%d\n",
875 hba
->firmware_version
>> 24,
876 (hba
->firmware_version
>> 16) & 0xff,
877 (hba
->firmware_version
>> 8) & 0xff,
878 hba
->firmware_version
& 0xff);
881 static struct device_attribute hptiop_attr_version
= {
883 .name
= "driver-version",
886 .show
= hptiop_show_version
,
889 static struct device_attribute hptiop_attr_fw_version
= {
891 .name
= "firmware-version",
894 .show
= hptiop_show_fw_version
,
897 static struct device_attribute
*hptiop_attrs
[] = {
898 &hptiop_attr_version
,
899 &hptiop_attr_fw_version
,
903 static struct scsi_host_template driver_template
= {
904 .module
= THIS_MODULE
,
906 .queuecommand
= hptiop_queuecommand
,
907 .eh_device_reset_handler
= hptiop_reset
,
908 .eh_bus_reset_handler
= hptiop_reset
,
911 .use_clustering
= ENABLE_CLUSTERING
,
912 .proc_name
= driver_name
,
913 .shost_attrs
= hptiop_attrs
,
915 .change_queue_depth
= hptiop_adjust_disk_queue_depth
,
918 static int hptiop_internal_memalloc_mv(struct hptiop_hba
*hba
)
920 hba
->u
.mv
.internal_req
= dma_alloc_coherent(&hba
->pcidev
->dev
,
921 0x800, &hba
->u
.mv
.internal_req_phy
, GFP_KERNEL
);
922 if (hba
->u
.mv
.internal_req
)
928 static int hptiop_internal_memfree_mv(struct hptiop_hba
*hba
)
930 if (hba
->u
.mv
.internal_req
) {
931 dma_free_coherent(&hba
->pcidev
->dev
, 0x800,
932 hba
->u
.mv
.internal_req
, hba
->u
.mv
.internal_req_phy
);
938 static int __devinit
hptiop_probe(struct pci_dev
*pcidev
,
939 const struct pci_device_id
*id
)
941 struct Scsi_Host
*host
= NULL
;
942 struct hptiop_hba
*hba
;
943 struct hpt_iop_request_get_config iop_config
;
944 struct hpt_iop_request_set_config set_config
;
945 dma_addr_t start_phy
;
947 u32 offset
, i
, req_size
;
949 dprintk("hptiop_probe(%p)\n", pcidev
);
951 if (pci_enable_device(pcidev
)) {
952 printk(KERN_ERR
"hptiop: fail to enable pci device\n");
956 printk(KERN_INFO
"adapter at PCI %d:%d:%d, IRQ %d\n",
957 pcidev
->bus
->number
, pcidev
->devfn
>> 3, pcidev
->devfn
& 7,
960 pci_set_master(pcidev
);
962 /* Enable 64bit DMA if possible */
963 if (pci_set_dma_mask(pcidev
, DMA_64BIT_MASK
)) {
964 if (pci_set_dma_mask(pcidev
, DMA_32BIT_MASK
)) {
965 printk(KERN_ERR
"hptiop: fail to set dma_mask\n");
966 goto disable_pci_device
;
970 if (pci_request_regions(pcidev
, driver_name
)) {
971 printk(KERN_ERR
"hptiop: pci_request_regions failed\n");
972 goto disable_pci_device
;
975 host
= scsi_host_alloc(&driver_template
, sizeof(struct hptiop_hba
));
977 printk(KERN_ERR
"hptiop: fail to alloc scsi host\n");
978 goto free_pci_regions
;
981 hba
= (struct hptiop_hba
*)host
->hostdata
;
983 hba
->ops
= (struct hptiop_adapter_ops
*)id
->driver_data
;
984 hba
->pcidev
= pcidev
;
986 hba
->initialized
= 0;
989 atomic_set(&hba
->resetting
, 0);
990 atomic_set(&hba
->reset_count
, 0);
992 init_waitqueue_head(&hba
->reset_wq
);
993 init_waitqueue_head(&hba
->ioctl_wq
);
996 host
->max_channel
= 0;
999 host
->irq
= pcidev
->irq
;
1001 if (hba
->ops
->map_pci_bar(hba
))
1002 goto free_scsi_host
;
1004 if (hba
->ops
->iop_wait_ready(hba
, 20000)) {
1005 printk(KERN_ERR
"scsi%d: firmware not ready\n",
1006 hba
->host
->host_no
);
1010 if (hba
->ops
->internal_memalloc
) {
1011 if (hba
->ops
->internal_memalloc(hba
)) {
1012 printk(KERN_ERR
"scsi%d: internal_memalloc failed\n",
1013 hba
->host
->host_no
);
1018 if (hba
->ops
->get_config(hba
, &iop_config
)) {
1019 printk(KERN_ERR
"scsi%d: get config failed\n",
1020 hba
->host
->host_no
);
1024 hba
->max_requests
= min(le32_to_cpu(iop_config
.max_requests
),
1025 HPTIOP_MAX_REQUESTS
);
1026 hba
->max_devices
= le32_to_cpu(iop_config
.max_devices
);
1027 hba
->max_request_size
= le32_to_cpu(iop_config
.request_size
);
1028 hba
->max_sg_descriptors
= le32_to_cpu(iop_config
.max_sg_count
);
1029 hba
->firmware_version
= le32_to_cpu(iop_config
.firmware_version
);
1030 hba
->interface_version
= le32_to_cpu(iop_config
.interface_version
);
1031 hba
->sdram_size
= le32_to_cpu(iop_config
.sdram_size
);
1033 if (hba
->firmware_version
> 0x01020000 ||
1034 hba
->interface_version
> 0x01020000)
1035 hba
->iopintf_v2
= 1;
1037 host
->max_sectors
= le32_to_cpu(iop_config
.data_transfer_length
) >> 9;
1038 host
->max_id
= le32_to_cpu(iop_config
.max_devices
);
1039 host
->sg_tablesize
= le32_to_cpu(iop_config
.max_sg_count
);
1040 host
->can_queue
= le32_to_cpu(iop_config
.max_requests
);
1041 host
->cmd_per_lun
= le32_to_cpu(iop_config
.max_requests
);
1042 host
->max_cmd_len
= 16;
1044 req_size
= sizeof(struct hpt_iop_request_scsi_command
)
1045 + sizeof(struct hpt_iopsg
) * (hba
->max_sg_descriptors
- 1);
1046 if ((req_size
& 0x1f) != 0)
1047 req_size
= (req_size
+ 0x1f) & ~0x1f;
1049 memset(&set_config
, 0, sizeof(struct hpt_iop_request_set_config
));
1050 set_config
.iop_id
= cpu_to_le32(host
->host_no
);
1051 set_config
.vbus_id
= cpu_to_le16(host
->host_no
);
1052 set_config
.max_host_request_size
= cpu_to_le16(req_size
);
1054 if (hba
->ops
->set_config(hba
, &set_config
)) {
1055 printk(KERN_ERR
"scsi%d: set config failed\n",
1056 hba
->host
->host_no
);
1060 pci_set_drvdata(pcidev
, host
);
1062 if (request_irq(pcidev
->irq
, hptiop_intr
, IRQF_SHARED
,
1063 driver_name
, hba
)) {
1064 printk(KERN_ERR
"scsi%d: request irq %d failed\n",
1065 hba
->host
->host_no
, pcidev
->irq
);
1069 /* Allocate request mem */
1071 dprintk("req_size=%d, max_requests=%d\n", req_size
, hba
->max_requests
);
1073 hba
->req_size
= req_size
;
1074 start_virt
= dma_alloc_coherent(&pcidev
->dev
,
1075 hba
->req_size
*hba
->max_requests
+ 0x20,
1076 &start_phy
, GFP_KERNEL
);
1079 printk(KERN_ERR
"scsi%d: fail to alloc request mem\n",
1080 hba
->host
->host_no
);
1081 goto free_request_irq
;
1084 hba
->dma_coherent
= start_virt
;
1085 hba
->dma_coherent_handle
= start_phy
;
1087 if ((start_phy
& 0x1f) != 0)
1089 offset
= ((start_phy
+ 0x1f) & ~0x1f) - start_phy
;
1090 start_phy
+= offset
;
1091 start_virt
+= offset
;
1094 hba
->req_list
= start_virt
;
1095 for (i
= 0; i
< hba
->max_requests
; i
++) {
1096 hba
->reqs
[i
].next
= NULL
;
1097 hba
->reqs
[i
].req_virt
= start_virt
;
1098 hba
->reqs
[i
].req_shifted_phy
= start_phy
>> 5;
1099 hba
->reqs
[i
].index
= i
;
1100 free_req(hba
, &hba
->reqs
[i
]);
1101 start_virt
= (char *)start_virt
+ hba
->req_size
;
1102 start_phy
= start_phy
+ hba
->req_size
;
1105 /* Enable Interrupt and start background task */
1106 if (hptiop_initialize_iop(hba
))
1107 goto free_request_mem
;
1109 if (scsi_add_host(host
, &pcidev
->dev
)) {
1110 printk(KERN_ERR
"scsi%d: scsi_add_host failed\n",
1111 hba
->host
->host_no
);
1112 goto free_request_mem
;
1116 scsi_scan_host(host
);
1118 dprintk("scsi%d: hptiop_probe successfully\n", hba
->host
->host_no
);
1122 dma_free_coherent(&hba
->pcidev
->dev
,
1123 hba
->req_size
* hba
->max_requests
+ 0x20,
1124 hba
->dma_coherent
, hba
->dma_coherent_handle
);
1127 free_irq(hba
->pcidev
->irq
, hba
);
1130 if (hba
->ops
->internal_memfree
)
1131 hba
->ops
->internal_memfree(hba
);
1133 hba
->ops
->unmap_pci_bar(hba
);
1136 scsi_host_put(host
);
1139 pci_release_regions(pcidev
);
1142 pci_disable_device(pcidev
);
1144 dprintk("scsi%d: hptiop_probe fail\n", host
->host_no
);
1148 static void hptiop_shutdown(struct pci_dev
*pcidev
)
1150 struct Scsi_Host
*host
= pci_get_drvdata(pcidev
);
1151 struct hptiop_hba
*hba
= (struct hptiop_hba
*)host
->hostdata
;
1153 dprintk("hptiop_shutdown(%p)\n", hba
);
1156 if (iop_send_sync_msg(hba
, IOPMU_INBOUND_MSG0_SHUTDOWN
, 60000))
1157 printk(KERN_ERR
"scsi%d: shutdown the iop timeout\n",
1158 hba
->host
->host_no
);
1160 /* disable all outbound interrupts */
1161 hba
->ops
->disable_intr(hba
);
1164 static void hptiop_disable_intr_itl(struct hptiop_hba
*hba
)
1168 int_mask
= readl(&hba
->u
.itl
.iop
->outbound_intmask
);
1170 IOPMU_OUTBOUND_INT_MSG0
| IOPMU_OUTBOUND_INT_POSTQUEUE
,
1171 &hba
->u
.itl
.iop
->outbound_intmask
);
1172 readl(&hba
->u
.itl
.iop
->outbound_intmask
);
1175 static void hptiop_disable_intr_mv(struct hptiop_hba
*hba
)
1177 writel(0, &hba
->u
.mv
.regs
->outbound_intmask
);
1178 readl(&hba
->u
.mv
.regs
->outbound_intmask
);
1181 static void hptiop_remove(struct pci_dev
*pcidev
)
1183 struct Scsi_Host
*host
= pci_get_drvdata(pcidev
);
1184 struct hptiop_hba
*hba
= (struct hptiop_hba
*)host
->hostdata
;
1186 dprintk("scsi%d: hptiop_remove\n", hba
->host
->host_no
);
1188 scsi_remove_host(host
);
1190 hptiop_shutdown(pcidev
);
1192 free_irq(hba
->pcidev
->irq
, hba
);
1194 dma_free_coherent(&hba
->pcidev
->dev
,
1195 hba
->req_size
* hba
->max_requests
+ 0x20,
1197 hba
->dma_coherent_handle
);
1199 if (hba
->ops
->internal_memfree
)
1200 hba
->ops
->internal_memfree(hba
);
1202 hba
->ops
->unmap_pci_bar(hba
);
1204 pci_release_regions(hba
->pcidev
);
1205 pci_set_drvdata(hba
->pcidev
, NULL
);
1206 pci_disable_device(hba
->pcidev
);
1208 scsi_host_put(host
);
1211 static struct hptiop_adapter_ops hptiop_itl_ops
= {
1212 .iop_wait_ready
= iop_wait_ready_itl
,
1213 .internal_memalloc
= 0,
1214 .internal_memfree
= 0,
1215 .map_pci_bar
= hptiop_map_pci_bar_itl
,
1216 .unmap_pci_bar
= hptiop_unmap_pci_bar_itl
,
1217 .enable_intr
= hptiop_enable_intr_itl
,
1218 .disable_intr
= hptiop_disable_intr_itl
,
1219 .get_config
= iop_get_config_itl
,
1220 .set_config
= iop_set_config_itl
,
1221 .iop_intr
= iop_intr_itl
,
1222 .post_msg
= hptiop_post_msg_itl
,
1223 .post_req
= hptiop_post_req_itl
,
1226 static struct hptiop_adapter_ops hptiop_mv_ops
= {
1227 .iop_wait_ready
= iop_wait_ready_mv
,
1228 .internal_memalloc
= hptiop_internal_memalloc_mv
,
1229 .internal_memfree
= hptiop_internal_memfree_mv
,
1230 .map_pci_bar
= hptiop_map_pci_bar_mv
,
1231 .unmap_pci_bar
= hptiop_unmap_pci_bar_mv
,
1232 .enable_intr
= hptiop_enable_intr_mv
,
1233 .disable_intr
= hptiop_disable_intr_mv
,
1234 .get_config
= iop_get_config_mv
,
1235 .set_config
= iop_set_config_mv
,
1236 .iop_intr
= iop_intr_mv
,
1237 .post_msg
= hptiop_post_msg_mv
,
1238 .post_req
= hptiop_post_req_mv
,
1241 static struct pci_device_id hptiop_id_table
[] = {
1242 { PCI_VDEVICE(TTI
, 0x3220), (kernel_ulong_t
)&hptiop_itl_ops
},
1243 { PCI_VDEVICE(TTI
, 0x3320), (kernel_ulong_t
)&hptiop_itl_ops
},
1244 { PCI_VDEVICE(TTI
, 0x3520), (kernel_ulong_t
)&hptiop_itl_ops
},
1245 { PCI_VDEVICE(TTI
, 0x4320), (kernel_ulong_t
)&hptiop_itl_ops
},
1246 { PCI_VDEVICE(TTI
, 0x3510), (kernel_ulong_t
)&hptiop_itl_ops
},
1247 { PCI_VDEVICE(TTI
, 0x3511), (kernel_ulong_t
)&hptiop_itl_ops
},
1248 { PCI_VDEVICE(TTI
, 0x3521), (kernel_ulong_t
)&hptiop_itl_ops
},
1249 { PCI_VDEVICE(TTI
, 0x3522), (kernel_ulong_t
)&hptiop_itl_ops
},
1250 { PCI_VDEVICE(TTI
, 0x3410), (kernel_ulong_t
)&hptiop_itl_ops
},
1251 { PCI_VDEVICE(TTI
, 0x3540), (kernel_ulong_t
)&hptiop_itl_ops
},
1252 { PCI_VDEVICE(TTI
, 0x3120), (kernel_ulong_t
)&hptiop_mv_ops
},
1253 { PCI_VDEVICE(TTI
, 0x3122), (kernel_ulong_t
)&hptiop_mv_ops
},
1254 { PCI_VDEVICE(TTI
, 0x3020), (kernel_ulong_t
)&hptiop_mv_ops
},
1258 MODULE_DEVICE_TABLE(pci
, hptiop_id_table
);
1260 static struct pci_driver hptiop_pci_driver
= {
1261 .name
= driver_name
,
1262 .id_table
= hptiop_id_table
,
1263 .probe
= hptiop_probe
,
1264 .remove
= hptiop_remove
,
1265 .shutdown
= hptiop_shutdown
,
1268 static int __init
hptiop_module_init(void)
1270 printk(KERN_INFO
"%s %s\n", driver_name_long
, driver_ver
);
1271 return pci_register_driver(&hptiop_pci_driver
);
1274 static void __exit
hptiop_module_exit(void)
1276 pci_unregister_driver(&hptiop_pci_driver
);
1280 module_init(hptiop_module_init
);
1281 module_exit(hptiop_module_exit
);
1283 MODULE_LICENSE("GPL");