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ede1e6f8 HLT |
1 | /* |
2 | * HighPoint RR3xxx controller driver for Linux | |
3 | * Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved. | |
4 | * | |
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. | |
8 | * | |
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. | |
13 | * | |
14 | * Please report bugs/comments/suggestions to linux@highpoint-tech.com | |
15 | * | |
16 | * For more information, visit http://www.highpoint-tech.com | |
17 | */ | |
ede1e6f8 HLT |
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> | |
30 | #include <asm/io.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> | |
37 | ||
38 | #include "hptiop.h" | |
39 | ||
40 | MODULE_AUTHOR("HighPoint Technologies, Inc."); | |
41 | MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx SATA Controller Driver"); | |
42 | ||
43 | static char driver_name[] = "hptiop"; | |
44 | static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver"; | |
45 | static const char driver_ver[] = "v1.0 (060426)"; | |
46 | ||
ede1e6f8 HLT |
47 | static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag); |
48 | static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag); | |
49 | static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg); | |
50 | ||
51 | static inline void hptiop_pci_posting_flush(struct hpt_iopmu __iomem *iop) | |
52 | { | |
53 | readl(&iop->outbound_intstatus); | |
54 | } | |
55 | ||
56 | static int iop_wait_ready(struct hpt_iopmu __iomem *iop, u32 millisec) | |
57 | { | |
58 | u32 req = 0; | |
59 | int i; | |
60 | ||
61 | for (i = 0; i < millisec; i++) { | |
62 | req = readl(&iop->inbound_queue); | |
63 | if (req != IOPMU_QUEUE_EMPTY) | |
64 | break; | |
65 | msleep(1); | |
66 | } | |
67 | ||
68 | if (req != IOPMU_QUEUE_EMPTY) { | |
69 | writel(req, &iop->outbound_queue); | |
70 | hptiop_pci_posting_flush(iop); | |
71 | return 0; | |
72 | } | |
73 | ||
74 | return -1; | |
75 | } | |
76 | ||
77 | static void hptiop_request_callback(struct hptiop_hba *hba, u32 tag) | |
78 | { | |
79 | if ((tag & IOPMU_QUEUE_MASK_HOST_BITS) == IOPMU_QUEUE_ADDR_HOST_BIT) | |
80 | return hptiop_host_request_callback(hba, | |
81 | tag & ~IOPMU_QUEUE_ADDR_HOST_BIT); | |
82 | else | |
83 | return hptiop_iop_request_callback(hba, tag); | |
84 | } | |
85 | ||
86 | static inline void hptiop_drain_outbound_queue(struct hptiop_hba *hba) | |
87 | { | |
88 | u32 req; | |
89 | ||
90 | while ((req = readl(&hba->iop->outbound_queue)) != IOPMU_QUEUE_EMPTY) { | |
91 | ||
92 | if (req & IOPMU_QUEUE_MASK_HOST_BITS) | |
93 | hptiop_request_callback(hba, req); | |
94 | else { | |
95 | struct hpt_iop_request_header __iomem * p; | |
96 | ||
97 | p = (struct hpt_iop_request_header __iomem *) | |
98 | ((char __iomem *)hba->iop + req); | |
99 | ||
100 | if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) { | |
101 | if (readl(&p->context)) | |
102 | hptiop_request_callback(hba, req); | |
103 | else | |
104 | writel(1, &p->context); | |
105 | } | |
106 | else | |
107 | hptiop_request_callback(hba, req); | |
108 | } | |
109 | } | |
110 | } | |
111 | ||
112 | static int __iop_intr(struct hptiop_hba *hba) | |
113 | { | |
114 | struct hpt_iopmu __iomem *iop = hba->iop; | |
115 | u32 status; | |
116 | int ret = 0; | |
117 | ||
118 | status = readl(&iop->outbound_intstatus); | |
119 | ||
120 | if (status & IOPMU_OUTBOUND_INT_MSG0) { | |
121 | u32 msg = readl(&iop->outbound_msgaddr0); | |
122 | dprintk("received outbound msg %x\n", msg); | |
123 | writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus); | |
124 | hptiop_message_callback(hba, msg); | |
125 | ret = 1; | |
126 | } | |
127 | ||
128 | if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) { | |
129 | hptiop_drain_outbound_queue(hba); | |
130 | ret = 1; | |
131 | } | |
132 | ||
133 | return ret; | |
134 | } | |
135 | ||
136 | static int iop_send_sync_request(struct hptiop_hba *hba, | |
137 | void __iomem *_req, u32 millisec) | |
138 | { | |
139 | struct hpt_iop_request_header __iomem *req = _req; | |
140 | u32 i; | |
141 | ||
142 | writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, | |
143 | &req->flags); | |
144 | ||
145 | writel(0, &req->context); | |
146 | ||
147 | writel((unsigned long)req - (unsigned long)hba->iop, | |
148 | &hba->iop->inbound_queue); | |
149 | ||
150 | hptiop_pci_posting_flush(hba->iop); | |
151 | ||
152 | for (i = 0; i < millisec; i++) { | |
153 | __iop_intr(hba); | |
154 | if (readl(&req->context)) | |
155 | return 0; | |
156 | msleep(1); | |
157 | } | |
158 | ||
159 | return -1; | |
160 | } | |
161 | ||
162 | static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec) | |
163 | { | |
164 | u32 i; | |
165 | ||
166 | hba->msg_done = 0; | |
167 | ||
168 | writel(msg, &hba->iop->inbound_msgaddr0); | |
169 | ||
170 | hptiop_pci_posting_flush(hba->iop); | |
171 | ||
172 | for (i = 0; i < millisec; i++) { | |
173 | spin_lock_irq(hba->host->host_lock); | |
174 | __iop_intr(hba); | |
175 | spin_unlock_irq(hba->host->host_lock); | |
176 | if (hba->msg_done) | |
177 | break; | |
178 | msleep(1); | |
179 | } | |
180 | ||
181 | return hba->msg_done? 0 : -1; | |
182 | } | |
183 | ||
184 | static int iop_get_config(struct hptiop_hba *hba, | |
185 | struct hpt_iop_request_get_config *config) | |
186 | { | |
187 | u32 req32; | |
188 | struct hpt_iop_request_get_config __iomem *req; | |
189 | ||
190 | req32 = readl(&hba->iop->inbound_queue); | |
191 | if (req32 == IOPMU_QUEUE_EMPTY) | |
192 | return -1; | |
193 | ||
194 | req = (struct hpt_iop_request_get_config __iomem *) | |
195 | ((unsigned long)hba->iop + req32); | |
196 | ||
197 | writel(0, &req->header.flags); | |
198 | writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type); | |
199 | writel(sizeof(struct hpt_iop_request_get_config), &req->header.size); | |
200 | writel(IOP_RESULT_PENDING, &req->header.result); | |
201 | ||
202 | if (iop_send_sync_request(hba, req, 20000)) { | |
203 | dprintk("Get config send cmd failed\n"); | |
204 | return -1; | |
205 | } | |
206 | ||
207 | memcpy_fromio(config, req, sizeof(*config)); | |
208 | writel(req32, &hba->iop->outbound_queue); | |
209 | return 0; | |
210 | } | |
211 | ||
212 | static int iop_set_config(struct hptiop_hba *hba, | |
213 | struct hpt_iop_request_set_config *config) | |
214 | { | |
215 | u32 req32; | |
216 | struct hpt_iop_request_set_config __iomem *req; | |
217 | ||
218 | req32 = readl(&hba->iop->inbound_queue); | |
219 | if (req32 == IOPMU_QUEUE_EMPTY) | |
220 | return -1; | |
221 | ||
222 | req = (struct hpt_iop_request_set_config __iomem *) | |
223 | ((unsigned long)hba->iop + req32); | |
224 | ||
225 | memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header), | |
226 | (u8 *)config + sizeof(struct hpt_iop_request_header), | |
227 | sizeof(struct hpt_iop_request_set_config) - | |
228 | sizeof(struct hpt_iop_request_header)); | |
229 | ||
230 | writel(0, &req->header.flags); | |
231 | writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type); | |
232 | writel(sizeof(struct hpt_iop_request_set_config), &req->header.size); | |
233 | writel(IOP_RESULT_PENDING, &req->header.result); | |
234 | ||
235 | if (iop_send_sync_request(hba, req, 20000)) { | |
236 | dprintk("Set config send cmd failed\n"); | |
237 | return -1; | |
238 | } | |
239 | ||
240 | writel(req32, &hba->iop->outbound_queue); | |
241 | return 0; | |
242 | } | |
243 | ||
244 | static int hptiop_initialize_iop(struct hptiop_hba *hba) | |
245 | { | |
246 | struct hpt_iopmu __iomem *iop = hba->iop; | |
247 | ||
248 | /* enable interrupts */ | |
249 | writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0), | |
250 | &iop->outbound_intmask); | |
251 | ||
252 | hba->initialized = 1; | |
253 | ||
254 | /* start background tasks */ | |
255 | if (iop_send_sync_msg(hba, | |
256 | IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { | |
257 | printk(KERN_ERR "scsi%d: fail to start background task\n", | |
258 | hba->host->host_no); | |
259 | return -1; | |
260 | } | |
261 | return 0; | |
262 | } | |
263 | ||
264 | static int hptiop_map_pci_bar(struct hptiop_hba *hba) | |
265 | { | |
266 | u32 mem_base_phy, length; | |
267 | void __iomem *mem_base_virt; | |
268 | struct pci_dev *pcidev = hba->pcidev; | |
269 | ||
270 | if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_MEM)) { | |
271 | printk(KERN_ERR "scsi%d: pci resource invalid\n", | |
272 | hba->host->host_no); | |
273 | return -1; | |
274 | } | |
275 | ||
276 | mem_base_phy = pci_resource_start(pcidev, 0); | |
277 | length = pci_resource_len(pcidev, 0); | |
278 | mem_base_virt = ioremap(mem_base_phy, length); | |
279 | ||
280 | if (!mem_base_virt) { | |
281 | printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n", | |
282 | hba->host->host_no); | |
283 | return -1; | |
284 | } | |
285 | ||
286 | hba->iop = mem_base_virt; | |
287 | dprintk("hptiop_map_pci_bar: iop=%p\n", hba->iop); | |
288 | return 0; | |
289 | } | |
290 | ||
291 | static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg) | |
292 | { | |
293 | dprintk("iop message 0x%x\n", msg); | |
294 | ||
295 | if (!hba->initialized) | |
296 | return; | |
297 | ||
298 | if (msg == IOPMU_INBOUND_MSG0_RESET) { | |
299 | atomic_set(&hba->resetting, 0); | |
300 | wake_up(&hba->reset_wq); | |
301 | } | |
302 | else if (msg <= IOPMU_INBOUND_MSG0_MAX) | |
303 | hba->msg_done = 1; | |
304 | } | |
305 | ||
306 | static inline struct hptiop_request *get_req(struct hptiop_hba *hba) | |
307 | { | |
308 | struct hptiop_request *ret; | |
309 | ||
310 | dprintk("get_req : req=%p\n", hba->req_list); | |
311 | ||
312 | ret = hba->req_list; | |
313 | if (ret) | |
314 | hba->req_list = ret->next; | |
315 | ||
316 | return ret; | |
317 | } | |
318 | ||
319 | static inline void free_req(struct hptiop_hba *hba, struct hptiop_request *req) | |
320 | { | |
321 | dprintk("free_req(%d, %p)\n", req->index, req); | |
322 | req->next = hba->req_list; | |
323 | hba->req_list = req; | |
324 | } | |
325 | ||
326 | static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag) | |
327 | { | |
328 | struct hpt_iop_request_scsi_command *req; | |
329 | struct scsi_cmnd *scp; | |
330 | ||
331 | req = (struct hpt_iop_request_scsi_command *)hba->reqs[tag].req_virt; | |
332 | dprintk("hptiop_host_request_callback: req=%p, type=%d, " | |
333 | "result=%d, context=0x%x tag=%d\n", | |
334 | req, req->header.type, req->header.result, | |
335 | req->header.context, tag); | |
336 | ||
337 | BUG_ON(!req->header.result); | |
338 | BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND)); | |
339 | ||
340 | scp = hba->reqs[tag].scp; | |
341 | ||
342 | if (HPT_SCP(scp)->mapped) { | |
343 | if (scp->use_sg) | |
344 | pci_unmap_sg(hba->pcidev, | |
345 | (struct scatterlist *)scp->request_buffer, | |
346 | scp->use_sg, | |
347 | scp->sc_data_direction | |
348 | ); | |
349 | else | |
350 | pci_unmap_single(hba->pcidev, | |
351 | HPT_SCP(scp)->dma_handle, | |
352 | scp->request_bufflen, | |
353 | scp->sc_data_direction | |
354 | ); | |
355 | } | |
356 | ||
357 | switch (le32_to_cpu(req->header.result)) { | |
358 | case IOP_RESULT_SUCCESS: | |
359 | scp->result = (DID_OK<<16); | |
360 | break; | |
361 | case IOP_RESULT_BAD_TARGET: | |
362 | scp->result = (DID_BAD_TARGET<<16); | |
363 | break; | |
364 | case IOP_RESULT_BUSY: | |
365 | scp->result = (DID_BUS_BUSY<<16); | |
366 | break; | |
367 | case IOP_RESULT_RESET: | |
368 | scp->result = (DID_RESET<<16); | |
369 | break; | |
370 | case IOP_RESULT_FAIL: | |
371 | scp->result = (DID_ERROR<<16); | |
372 | break; | |
373 | case IOP_RESULT_INVALID_REQUEST: | |
374 | scp->result = (DID_ABORT<<16); | |
375 | break; | |
376 | case IOP_RESULT_MODE_SENSE_CHECK_CONDITION: | |
377 | scp->result = SAM_STAT_CHECK_CONDITION; | |
378 | memset(&scp->sense_buffer, | |
379 | 0, sizeof(scp->sense_buffer)); | |
380 | memcpy(&scp->sense_buffer, | |
381 | &req->sg_list, le32_to_cpu(req->dataxfer_length)); | |
382 | break; | |
383 | ||
384 | default: | |
385 | scp->result = ((DRIVER_INVALID|SUGGEST_ABORT)<<24) | | |
386 | (DID_ABORT<<16); | |
387 | break; | |
388 | } | |
389 | ||
390 | dprintk("scsi_done(%p)\n", scp); | |
391 | scp->scsi_done(scp); | |
392 | free_req(hba, &hba->reqs[tag]); | |
393 | } | |
394 | ||
395 | void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag) | |
396 | { | |
397 | struct hpt_iop_request_header __iomem *req; | |
398 | struct hpt_iop_request_ioctl_command __iomem *p; | |
399 | struct hpt_ioctl_k *arg; | |
400 | ||
401 | req = (struct hpt_iop_request_header __iomem *) | |
402 | ((unsigned long)hba->iop + tag); | |
403 | dprintk("hptiop_iop_request_callback: req=%p, type=%d, " | |
404 | "result=%d, context=0x%x tag=%d\n", | |
405 | req, readl(&req->type), readl(&req->result), | |
406 | readl(&req->context), tag); | |
407 | ||
408 | BUG_ON(!readl(&req->result)); | |
409 | BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND); | |
410 | ||
411 | p = (struct hpt_iop_request_ioctl_command __iomem *)req; | |
412 | arg = (struct hpt_ioctl_k *)(unsigned long) | |
413 | (readl(&req->context) | | |
414 | ((u64)readl(&req->context_hi32)<<32)); | |
415 | ||
416 | if (readl(&req->result) == IOP_RESULT_SUCCESS) { | |
417 | arg->result = HPT_IOCTL_RESULT_OK; | |
418 | ||
419 | if (arg->outbuf_size) | |
420 | memcpy_fromio(arg->outbuf, | |
421 | &p->buf[(readl(&p->inbuf_size) + 3)& ~3], | |
422 | arg->outbuf_size); | |
423 | ||
424 | if (arg->bytes_returned) | |
425 | *arg->bytes_returned = arg->outbuf_size; | |
426 | } | |
427 | else | |
428 | arg->result = HPT_IOCTL_RESULT_FAILED; | |
429 | ||
430 | arg->done(arg); | |
431 | writel(tag, &hba->iop->outbound_queue); | |
432 | } | |
433 | ||
7d12e780 | 434 | static irqreturn_t hptiop_intr(int irq, void *dev_id) |
ede1e6f8 HLT |
435 | { |
436 | struct hptiop_hba *hba = dev_id; | |
437 | int handled; | |
438 | unsigned long flags; | |
439 | ||
440 | spin_lock_irqsave(hba->host->host_lock, flags); | |
441 | handled = __iop_intr(hba); | |
442 | spin_unlock_irqrestore(hba->host->host_lock, flags); | |
443 | ||
444 | return handled; | |
445 | } | |
446 | ||
447 | static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg) | |
448 | { | |
449 | struct Scsi_Host *host = scp->device->host; | |
450 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; | |
451 | struct scatterlist *sglist = (struct scatterlist *)scp->request_buffer; | |
452 | ||
453 | /* | |
454 | * though we'll not get non-use_sg fields anymore, | |
455 | * keep use_sg checking anyway | |
456 | */ | |
457 | if (scp->use_sg) { | |
458 | int idx; | |
459 | ||
460 | HPT_SCP(scp)->sgcnt = pci_map_sg(hba->pcidev, | |
461 | sglist, scp->use_sg, | |
462 | scp->sc_data_direction); | |
463 | HPT_SCP(scp)->mapped = 1; | |
464 | BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors); | |
465 | ||
466 | for (idx = 0; idx < HPT_SCP(scp)->sgcnt; idx++) { | |
467 | psg[idx].pci_address = | |
468 | cpu_to_le64(sg_dma_address(&sglist[idx])); | |
469 | psg[idx].size = cpu_to_le32(sg_dma_len(&sglist[idx])); | |
470 | psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ? | |
471 | cpu_to_le32(1) : 0; | |
472 | } | |
473 | ||
474 | return HPT_SCP(scp)->sgcnt; | |
475 | } else { | |
476 | HPT_SCP(scp)->dma_handle = pci_map_single( | |
477 | hba->pcidev, | |
478 | scp->request_buffer, | |
479 | scp->request_bufflen, | |
480 | scp->sc_data_direction | |
481 | ); | |
482 | HPT_SCP(scp)->mapped = 1; | |
483 | psg->pci_address = cpu_to_le64(HPT_SCP(scp)->dma_handle); | |
484 | psg->size = cpu_to_le32(scp->request_bufflen); | |
485 | psg->eot = cpu_to_le32(1); | |
486 | return 1; | |
487 | } | |
488 | } | |
489 | ||
490 | static int hptiop_queuecommand(struct scsi_cmnd *scp, | |
491 | void (*done)(struct scsi_cmnd *)) | |
492 | { | |
493 | struct Scsi_Host *host = scp->device->host; | |
494 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; | |
495 | struct hpt_iop_request_scsi_command *req; | |
496 | int sg_count = 0; | |
497 | struct hptiop_request *_req; | |
498 | ||
499 | BUG_ON(!done); | |
500 | scp->scsi_done = done; | |
501 | ||
ede1e6f8 HLT |
502 | _req = get_req(hba); |
503 | if (_req == NULL) { | |
504 | dprintk("hptiop_queuecmd : no free req\n"); | |
4f2ddba3 | 505 | return SCSI_MLQUEUE_HOST_BUSY; |
ede1e6f8 HLT |
506 | } |
507 | ||
508 | _req->scp = scp; | |
509 | ||
510 | dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%d cdb=(%x-%x-%x) " | |
511 | "req_index=%d, req=%p\n", | |
512 | scp, | |
513 | host->host_no, scp->device->channel, | |
514 | scp->device->id, scp->device->lun, | |
515 | *((u32 *)&scp->cmnd), | |
516 | *((u32 *)&scp->cmnd + 1), | |
517 | *((u32 *)&scp->cmnd + 2), | |
518 | _req->index, _req->req_virt); | |
519 | ||
520 | scp->result = 0; | |
521 | ||
522 | if (scp->device->channel || scp->device->lun || | |
523 | scp->device->id > hba->max_devices) { | |
524 | scp->result = DID_BAD_TARGET << 16; | |
525 | free_req(hba, _req); | |
526 | goto cmd_done; | |
527 | } | |
528 | ||
529 | req = (struct hpt_iop_request_scsi_command *)_req->req_virt; | |
530 | ||
531 | /* build S/G table */ | |
532 | if (scp->request_bufflen) | |
533 | sg_count = hptiop_buildsgl(scp, req->sg_list); | |
534 | else | |
535 | HPT_SCP(scp)->mapped = 0; | |
536 | ||
537 | req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT); | |
538 | req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND); | |
539 | req->header.result = cpu_to_le32(IOP_RESULT_PENDING); | |
540 | req->header.context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT | | |
541 | (u32)_req->index); | |
542 | req->header.context_hi32 = 0; | |
6db874fb | 543 | req->dataxfer_length = cpu_to_le32(scp->request_bufflen); |
ede1e6f8 HLT |
544 | req->channel = scp->device->channel; |
545 | req->target = scp->device->id; | |
546 | req->lun = scp->device->lun; | |
547 | req->header.size = cpu_to_le32( | |
548 | sizeof(struct hpt_iop_request_scsi_command) | |
549 | - sizeof(struct hpt_iopsg) | |
550 | + sg_count * sizeof(struct hpt_iopsg)); | |
551 | ||
552 | memcpy(req->cdb, scp->cmnd, sizeof(req->cdb)); | |
553 | ||
554 | writel(IOPMU_QUEUE_ADDR_HOST_BIT | _req->req_shifted_phy, | |
555 | &hba->iop->inbound_queue); | |
556 | ||
557 | return 0; | |
558 | ||
559 | cmd_done: | |
560 | dprintk("scsi_done(scp=%p)\n", scp); | |
561 | scp->scsi_done(scp); | |
562 | return 0; | |
563 | } | |
564 | ||
565 | static const char *hptiop_info(struct Scsi_Host *host) | |
566 | { | |
567 | return driver_name_long; | |
568 | } | |
569 | ||
570 | static int hptiop_reset_hba(struct hptiop_hba *hba) | |
571 | { | |
572 | if (atomic_xchg(&hba->resetting, 1) == 0) { | |
573 | atomic_inc(&hba->reset_count); | |
574 | writel(IOPMU_INBOUND_MSG0_RESET, | |
8d4fbd3f | 575 | &hba->iop->inbound_msgaddr0); |
ede1e6f8 HLT |
576 | hptiop_pci_posting_flush(hba->iop); |
577 | } | |
578 | ||
579 | wait_event_timeout(hba->reset_wq, | |
580 | atomic_read(&hba->resetting) == 0, 60 * HZ); | |
581 | ||
582 | if (atomic_read(&hba->resetting)) { | |
583 | /* IOP is in unkown state, abort reset */ | |
584 | printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no); | |
585 | return -1; | |
586 | } | |
587 | ||
588 | if (iop_send_sync_msg(hba, | |
589 | IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) { | |
590 | dprintk("scsi%d: fail to start background task\n", | |
591 | hba->host->host_no); | |
592 | } | |
593 | ||
594 | return 0; | |
595 | } | |
596 | ||
597 | static int hptiop_reset(struct scsi_cmnd *scp) | |
598 | { | |
599 | struct Scsi_Host * host = scp->device->host; | |
600 | struct hptiop_hba * hba = (struct hptiop_hba *)host->hostdata; | |
601 | ||
602 | printk(KERN_WARNING "hptiop_reset(%d/%d/%d) scp=%p\n", | |
603 | scp->device->host->host_no, scp->device->channel, | |
604 | scp->device->id, scp); | |
605 | ||
606 | return hptiop_reset_hba(hba)? FAILED : SUCCESS; | |
607 | } | |
608 | ||
609 | static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev, | |
610 | int queue_depth) | |
611 | { | |
612 | if(queue_depth > 256) | |
613 | queue_depth = 256; | |
614 | scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); | |
615 | return queue_depth; | |
616 | } | |
617 | ||
ede1e6f8 HLT |
618 | static ssize_t hptiop_show_version(struct class_device *class_dev, char *buf) |
619 | { | |
620 | return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver); | |
621 | } | |
622 | ||
ede1e6f8 HLT |
623 | static ssize_t hptiop_show_fw_version(struct class_device *class_dev, char *buf) |
624 | { | |
625 | struct Scsi_Host *host = class_to_shost(class_dev); | |
626 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; | |
627 | ||
628 | return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n", | |
629 | hba->firmware_version >> 24, | |
630 | (hba->firmware_version >> 16) & 0xff, | |
631 | (hba->firmware_version >> 8) & 0xff, | |
632 | hba->firmware_version & 0xff); | |
633 | } | |
634 | ||
635 | static struct class_device_attribute hptiop_attr_version = { | |
636 | .attr = { | |
637 | .name = "driver-version", | |
638 | .mode = S_IRUGO, | |
639 | }, | |
640 | .show = hptiop_show_version, | |
641 | }; | |
642 | ||
643 | static struct class_device_attribute hptiop_attr_fw_version = { | |
644 | .attr = { | |
645 | .name = "firmware-version", | |
646 | .mode = S_IRUGO, | |
647 | }, | |
648 | .show = hptiop_show_fw_version, | |
649 | }; | |
650 | ||
651 | static struct class_device_attribute *hptiop_attrs[] = { | |
652 | &hptiop_attr_version, | |
653 | &hptiop_attr_fw_version, | |
654 | NULL | |
655 | }; | |
656 | ||
657 | static struct scsi_host_template driver_template = { | |
658 | .module = THIS_MODULE, | |
659 | .name = driver_name, | |
660 | .queuecommand = hptiop_queuecommand, | |
661 | .eh_device_reset_handler = hptiop_reset, | |
662 | .eh_bus_reset_handler = hptiop_reset, | |
663 | .info = hptiop_info, | |
664 | .unchecked_isa_dma = 0, | |
665 | .emulated = 0, | |
666 | .use_clustering = ENABLE_CLUSTERING, | |
667 | .proc_name = driver_name, | |
668 | .shost_attrs = hptiop_attrs, | |
669 | .this_id = -1, | |
670 | .change_queue_depth = hptiop_adjust_disk_queue_depth, | |
671 | }; | |
672 | ||
673 | static int __devinit hptiop_probe(struct pci_dev *pcidev, | |
674 | const struct pci_device_id *id) | |
675 | { | |
676 | struct Scsi_Host *host = NULL; | |
677 | struct hptiop_hba *hba; | |
678 | struct hpt_iop_request_get_config iop_config; | |
679 | struct hpt_iop_request_set_config set_config; | |
680 | dma_addr_t start_phy; | |
681 | void *start_virt; | |
682 | u32 offset, i, req_size; | |
683 | ||
684 | dprintk("hptiop_probe(%p)\n", pcidev); | |
685 | ||
686 | if (pci_enable_device(pcidev)) { | |
687 | printk(KERN_ERR "hptiop: fail to enable pci device\n"); | |
688 | return -ENODEV; | |
689 | } | |
690 | ||
691 | printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n", | |
692 | pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7, | |
693 | pcidev->irq); | |
694 | ||
695 | pci_set_master(pcidev); | |
696 | ||
697 | /* Enable 64bit DMA if possible */ | |
698 | if (pci_set_dma_mask(pcidev, DMA_64BIT_MASK)) { | |
699 | if (pci_set_dma_mask(pcidev, DMA_32BIT_MASK)) { | |
700 | printk(KERN_ERR "hptiop: fail to set dma_mask\n"); | |
701 | goto disable_pci_device; | |
702 | } | |
703 | } | |
704 | ||
705 | if (pci_request_regions(pcidev, driver_name)) { | |
706 | printk(KERN_ERR "hptiop: pci_request_regions failed\n"); | |
707 | goto disable_pci_device; | |
708 | } | |
709 | ||
710 | host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba)); | |
711 | if (!host) { | |
712 | printk(KERN_ERR "hptiop: fail to alloc scsi host\n"); | |
713 | goto free_pci_regions; | |
714 | } | |
715 | ||
716 | hba = (struct hptiop_hba *)host->hostdata; | |
717 | ||
718 | hba->pcidev = pcidev; | |
719 | hba->host = host; | |
720 | hba->initialized = 0; | |
721 | ||
722 | atomic_set(&hba->resetting, 0); | |
723 | atomic_set(&hba->reset_count, 0); | |
724 | ||
725 | init_waitqueue_head(&hba->reset_wq); | |
726 | init_waitqueue_head(&hba->ioctl_wq); | |
727 | ||
728 | host->max_lun = 1; | |
729 | host->max_channel = 0; | |
730 | host->io_port = 0; | |
731 | host->n_io_port = 0; | |
732 | host->irq = pcidev->irq; | |
733 | ||
734 | if (hptiop_map_pci_bar(hba)) | |
735 | goto free_scsi_host; | |
736 | ||
737 | if (iop_wait_ready(hba->iop, 20000)) { | |
738 | printk(KERN_ERR "scsi%d: firmware not ready\n", | |
739 | hba->host->host_no); | |
740 | goto unmap_pci_bar; | |
741 | } | |
742 | ||
743 | if (iop_get_config(hba, &iop_config)) { | |
744 | printk(KERN_ERR "scsi%d: get config failed\n", | |
745 | hba->host->host_no); | |
746 | goto unmap_pci_bar; | |
747 | } | |
748 | ||
749 | hba->max_requests = min(le32_to_cpu(iop_config.max_requests), | |
750 | HPTIOP_MAX_REQUESTS); | |
751 | hba->max_devices = le32_to_cpu(iop_config.max_devices); | |
752 | hba->max_request_size = le32_to_cpu(iop_config.request_size); | |
753 | hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count); | |
754 | hba->firmware_version = le32_to_cpu(iop_config.firmware_version); | |
755 | hba->sdram_size = le32_to_cpu(iop_config.sdram_size); | |
756 | ||
757 | host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9; | |
758 | host->max_id = le32_to_cpu(iop_config.max_devices); | |
759 | host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count); | |
760 | host->can_queue = le32_to_cpu(iop_config.max_requests); | |
761 | host->cmd_per_lun = le32_to_cpu(iop_config.max_requests); | |
762 | host->max_cmd_len = 16; | |
763 | ||
764 | set_config.vbus_id = cpu_to_le32(host->host_no); | |
765 | set_config.iop_id = cpu_to_le32(host->host_no); | |
766 | ||
767 | if (iop_set_config(hba, &set_config)) { | |
768 | printk(KERN_ERR "scsi%d: set config failed\n", | |
769 | hba->host->host_no); | |
770 | goto unmap_pci_bar; | |
771 | } | |
772 | ||
ede1e6f8 HLT |
773 | pci_set_drvdata(pcidev, host); |
774 | ||
1d6f359a | 775 | if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED, |
ede1e6f8 HLT |
776 | driver_name, hba)) { |
777 | printk(KERN_ERR "scsi%d: request irq %d failed\n", | |
778 | hba->host->host_no, pcidev->irq); | |
3e74051b | 779 | goto unmap_pci_bar; |
ede1e6f8 HLT |
780 | } |
781 | ||
782 | /* Allocate request mem */ | |
783 | req_size = sizeof(struct hpt_iop_request_scsi_command) | |
784 | + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1); | |
785 | if ((req_size& 0x1f) != 0) | |
786 | req_size = (req_size + 0x1f) & ~0x1f; | |
787 | ||
788 | dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests); | |
789 | ||
790 | hba->req_size = req_size; | |
791 | start_virt = dma_alloc_coherent(&pcidev->dev, | |
792 | hba->req_size*hba->max_requests + 0x20, | |
793 | &start_phy, GFP_KERNEL); | |
794 | ||
795 | if (!start_virt) { | |
796 | printk(KERN_ERR "scsi%d: fail to alloc request mem\n", | |
797 | hba->host->host_no); | |
798 | goto free_request_irq; | |
799 | } | |
800 | ||
801 | hba->dma_coherent = start_virt; | |
802 | hba->dma_coherent_handle = start_phy; | |
803 | ||
804 | if ((start_phy & 0x1f) != 0) | |
805 | { | |
806 | offset = ((start_phy + 0x1f) & ~0x1f) - start_phy; | |
807 | start_phy += offset; | |
808 | start_virt += offset; | |
809 | } | |
810 | ||
811 | hba->req_list = start_virt; | |
812 | for (i = 0; i < hba->max_requests; i++) { | |
813 | hba->reqs[i].next = NULL; | |
814 | hba->reqs[i].req_virt = start_virt; | |
815 | hba->reqs[i].req_shifted_phy = start_phy >> 5; | |
816 | hba->reqs[i].index = i; | |
817 | free_req(hba, &hba->reqs[i]); | |
818 | start_virt = (char *)start_virt + hba->req_size; | |
819 | start_phy = start_phy + hba->req_size; | |
820 | } | |
821 | ||
822 | /* Enable Interrupt and start background task */ | |
823 | if (hptiop_initialize_iop(hba)) | |
824 | goto free_request_mem; | |
825 | ||
3e74051b CH |
826 | if (scsi_add_host(host, &pcidev->dev)) { |
827 | printk(KERN_ERR "scsi%d: scsi_add_host failed\n", | |
828 | hba->host->host_no); | |
829 | goto free_request_mem; | |
830 | } | |
831 | ||
ede1e6f8 HLT |
832 | |
833 | scsi_scan_host(host); | |
834 | ||
835 | dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no); | |
836 | return 0; | |
837 | ||
838 | free_request_mem: | |
839 | dma_free_coherent(&hba->pcidev->dev, | |
840 | hba->req_size*hba->max_requests + 0x20, | |
841 | hba->dma_coherent, hba->dma_coherent_handle); | |
842 | ||
843 | free_request_irq: | |
844 | free_irq(hba->pcidev->irq, hba); | |
845 | ||
ede1e6f8 HLT |
846 | unmap_pci_bar: |
847 | iounmap(hba->iop); | |
848 | ||
849 | free_pci_regions: | |
850 | pci_release_regions(pcidev) ; | |
851 | ||
852 | free_scsi_host: | |
853 | scsi_host_put(host); | |
854 | ||
855 | disable_pci_device: | |
856 | pci_disable_device(pcidev); | |
857 | ||
858 | dprintk("scsi%d: hptiop_probe fail\n", host->host_no); | |
859 | return -ENODEV; | |
860 | } | |
861 | ||
862 | static void hptiop_shutdown(struct pci_dev *pcidev) | |
863 | { | |
864 | struct Scsi_Host *host = pci_get_drvdata(pcidev); | |
865 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; | |
866 | struct hpt_iopmu __iomem *iop = hba->iop; | |
867 | u32 int_mask; | |
868 | ||
869 | dprintk("hptiop_shutdown(%p)\n", hba); | |
870 | ||
871 | /* stop the iop */ | |
872 | if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000)) | |
873 | printk(KERN_ERR "scsi%d: shutdown the iop timeout\n", | |
874 | hba->host->host_no); | |
875 | ||
876 | /* disable all outbound interrupts */ | |
877 | int_mask = readl(&iop->outbound_intmask); | |
878 | writel(int_mask | | |
879 | IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE, | |
880 | &iop->outbound_intmask); | |
881 | hptiop_pci_posting_flush(iop); | |
882 | } | |
883 | ||
884 | static void hptiop_remove(struct pci_dev *pcidev) | |
885 | { | |
886 | struct Scsi_Host *host = pci_get_drvdata(pcidev); | |
887 | struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata; | |
888 | ||
889 | dprintk("scsi%d: hptiop_remove\n", hba->host->host_no); | |
890 | ||
4f2ddba3 HLT |
891 | scsi_remove_host(host); |
892 | ||
ede1e6f8 HLT |
893 | hptiop_shutdown(pcidev); |
894 | ||
895 | free_irq(hba->pcidev->irq, hba); | |
896 | ||
897 | dma_free_coherent(&hba->pcidev->dev, | |
898 | hba->req_size * hba->max_requests + 0x20, | |
899 | hba->dma_coherent, | |
900 | hba->dma_coherent_handle); | |
901 | ||
902 | iounmap(hba->iop); | |
903 | ||
904 | pci_release_regions(hba->pcidev); | |
905 | pci_set_drvdata(hba->pcidev, NULL); | |
906 | pci_disable_device(hba->pcidev); | |
907 | ||
ede1e6f8 HLT |
908 | scsi_host_put(host); |
909 | } | |
910 | ||
911 | static struct pci_device_id hptiop_id_table[] = { | |
912 | { PCI_DEVICE(0x1103, 0x3220) }, | |
913 | { PCI_DEVICE(0x1103, 0x3320) }, | |
914 | {}, | |
915 | }; | |
916 | ||
917 | MODULE_DEVICE_TABLE(pci, hptiop_id_table); | |
918 | ||
919 | static struct pci_driver hptiop_pci_driver = { | |
920 | .name = driver_name, | |
921 | .id_table = hptiop_id_table, | |
922 | .probe = hptiop_probe, | |
923 | .remove = hptiop_remove, | |
924 | .shutdown = hptiop_shutdown, | |
925 | }; | |
926 | ||
927 | static int __init hptiop_module_init(void) | |
928 | { | |
ede1e6f8 | 929 | printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver); |
3e74051b | 930 | return pci_register_driver(&hptiop_pci_driver); |
ede1e6f8 HLT |
931 | } |
932 | ||
933 | static void __exit hptiop_module_exit(void) | |
934 | { | |
ede1e6f8 HLT |
935 | pci_unregister_driver(&hptiop_pci_driver); |
936 | } | |
937 | ||
938 | ||
939 | module_init(hptiop_module_init); | |
940 | module_exit(hptiop_module_exit); | |
941 | ||
942 | MODULE_LICENSE("GPL"); |