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1c57e86d EC |
1 | /* |
2 | ******************************************************************************* | |
3 | ** O.S : Linux | |
4 | ** FILE NAME : arcmsr_hba.c | |
5 | ** BY : Erich Chen | |
6 | ** Description: SCSI RAID Device Driver for | |
7 | ** ARECA RAID Host adapter | |
8 | ******************************************************************************* | |
9 | ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved | |
10 | ** | |
11 | ** Web site: www.areca.com.tw | |
12 | ** E-mail: erich@areca.com.tw | |
13 | ** | |
14 | ** This program is free software; you can redistribute it and/or modify | |
15 | ** it under the terms of the GNU General Public License version 2 as | |
16 | ** published by the Free Software Foundation. | |
17 | ** This program is distributed in the hope that it will be useful, | |
18 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ** GNU General Public License for more details. | |
21 | ******************************************************************************* | |
22 | ** Redistribution and use in source and binary forms, with or without | |
23 | ** modification, are permitted provided that the following conditions | |
24 | ** are met: | |
25 | ** 1. Redistributions of source code must retain the above copyright | |
26 | ** notice, this list of conditions and the following disclaimer. | |
27 | ** 2. Redistributions in binary form must reproduce the above copyright | |
28 | ** notice, this list of conditions and the following disclaimer in the | |
29 | ** documentation and/or other materials provided with the distribution. | |
30 | ** 3. The name of the author may not be used to endorse or promote products | |
31 | ** derived from this software without specific prior written permission. | |
32 | ** | |
33 | ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
34 | ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
35 | ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
36 | ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
37 | ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT | |
38 | ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
39 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY | |
40 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
41 | ** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF | |
42 | ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
43 | ******************************************************************************* | |
44 | ** For history of changes, see Documentation/scsi/ChangeLog.arcmsr | |
45 | ** Firmware Specification, see Documentation/scsi/arcmsr_spec.txt | |
46 | ******************************************************************************* | |
47 | */ | |
48 | #include <linux/module.h> | |
49 | #include <linux/reboot.h> | |
50 | #include <linux/spinlock.h> | |
51 | #include <linux/pci_ids.h> | |
52 | #include <linux/interrupt.h> | |
53 | #include <linux/moduleparam.h> | |
54 | #include <linux/errno.h> | |
55 | #include <linux/types.h> | |
56 | #include <linux/delay.h> | |
57 | #include <linux/dma-mapping.h> | |
58 | #include <linux/timer.h> | |
59 | #include <linux/pci.h> | |
60 | #include <asm/dma.h> | |
61 | #include <asm/io.h> | |
62 | #include <asm/system.h> | |
63 | #include <asm/uaccess.h> | |
64 | #include <scsi/scsi_host.h> | |
65 | #include <scsi/scsi.h> | |
66 | #include <scsi/scsi_cmnd.h> | |
67 | #include <scsi/scsi_tcq.h> | |
68 | #include <scsi/scsi_device.h> | |
69 | #include <scsi/scsi_transport.h> | |
70 | #include <scsi/scsicam.h> | |
71 | #include "arcmsr.h" | |
72 | ||
73 | MODULE_AUTHOR("Erich Chen <erich@areca.com.tw>"); | |
74 | MODULE_DESCRIPTION("ARECA (ARC11xx/12xx) SATA RAID HOST Adapter"); | |
75 | MODULE_LICENSE("Dual BSD/GPL"); | |
76 | MODULE_VERSION(ARCMSR_DRIVER_VERSION); | |
77 | ||
78 | static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, struct scsi_cmnd *cmd); | |
79 | static int arcmsr_abort(struct scsi_cmnd *); | |
80 | static int arcmsr_bus_reset(struct scsi_cmnd *); | |
81 | static int arcmsr_bios_param(struct scsi_device *sdev, | |
82 | struct block_device *bdev, sector_t capacity, int *info); | |
83 | static int arcmsr_queue_command(struct scsi_cmnd * cmd, | |
84 | void (*done) (struct scsi_cmnd *)); | |
85 | static int arcmsr_probe(struct pci_dev *pdev, | |
86 | const struct pci_device_id *id); | |
87 | static void arcmsr_remove(struct pci_dev *pdev); | |
88 | static void arcmsr_shutdown(struct pci_dev *pdev); | |
89 | static void arcmsr_iop_init(struct AdapterControlBlock *acb); | |
90 | static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb); | |
91 | static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb); | |
92 | static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb); | |
93 | static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb); | |
94 | static const char *arcmsr_info(struct Scsi_Host *); | |
95 | static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb); | |
96 | ||
97 | static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth) | |
98 | { | |
99 | if (queue_depth > ARCMSR_MAX_CMD_PERLUN) | |
100 | queue_depth = ARCMSR_MAX_CMD_PERLUN; | |
101 | scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); | |
102 | return queue_depth; | |
103 | } | |
104 | ||
105 | static struct scsi_host_template arcmsr_scsi_host_template = { | |
106 | .module = THIS_MODULE, | |
107 | .name = "ARCMSR ARECA SATA RAID HOST Adapter" ARCMSR_DRIVER_VERSION, | |
108 | .info = arcmsr_info, | |
109 | .queuecommand = arcmsr_queue_command, | |
110 | .eh_abort_handler = arcmsr_abort, | |
111 | .eh_bus_reset_handler = arcmsr_bus_reset, | |
112 | .bios_param = arcmsr_bios_param, | |
113 | .change_queue_depth = arcmsr_adjust_disk_queue_depth, | |
114 | .can_queue = ARCMSR_MAX_OUTSTANDING_CMD, | |
115 | .this_id = ARCMSR_SCSI_INITIATOR_ID, | |
116 | .sg_tablesize = ARCMSR_MAX_SG_ENTRIES, | |
117 | .max_sectors = ARCMSR_MAX_XFER_SECTORS, | |
118 | .cmd_per_lun = ARCMSR_MAX_CMD_PERLUN, | |
119 | .use_clustering = ENABLE_CLUSTERING, | |
120 | .shost_attrs = arcmsr_host_attrs, | |
121 | }; | |
122 | ||
123 | static struct pci_device_id arcmsr_device_id_table[] = { | |
124 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)}, | |
125 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)}, | |
126 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130)}, | |
127 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160)}, | |
128 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170)}, | |
129 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210)}, | |
130 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220)}, | |
131 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230)}, | |
132 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260)}, | |
133 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270)}, | |
134 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280)}, | |
135 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380)}, | |
136 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381)}, | |
137 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680)}, | |
138 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681)}, | |
139 | {0, 0}, /* Terminating entry */ | |
140 | }; | |
141 | MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table); | |
142 | static struct pci_driver arcmsr_pci_driver = { | |
143 | .name = "arcmsr", | |
144 | .id_table = arcmsr_device_id_table, | |
145 | .probe = arcmsr_probe, | |
146 | .remove = arcmsr_remove, | |
147 | .shutdown = arcmsr_shutdown | |
148 | }; | |
149 | ||
7d12e780 | 150 | static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id) |
1c57e86d EC |
151 | { |
152 | irqreturn_t handle_state; | |
153 | struct AdapterControlBlock *acb; | |
154 | unsigned long flags; | |
155 | ||
156 | acb = (struct AdapterControlBlock *)dev_id; | |
157 | ||
158 | spin_lock_irqsave(acb->host->host_lock, flags); | |
159 | handle_state = arcmsr_interrupt(acb); | |
160 | spin_unlock_irqrestore(acb->host->host_lock, flags); | |
161 | return handle_state; | |
162 | } | |
163 | ||
164 | static int arcmsr_bios_param(struct scsi_device *sdev, | |
165 | struct block_device *bdev, sector_t capacity, int *geom) | |
166 | { | |
167 | int ret, heads, sectors, cylinders, total_capacity; | |
168 | unsigned char *buffer;/* return copy of block device's partition table */ | |
169 | ||
170 | buffer = scsi_bios_ptable(bdev); | |
171 | if (buffer) { | |
172 | ret = scsi_partsize(buffer, capacity, &geom[2], &geom[0], &geom[1]); | |
173 | kfree(buffer); | |
174 | if (ret != -1) | |
175 | return ret; | |
176 | } | |
177 | total_capacity = capacity; | |
178 | heads = 64; | |
179 | sectors = 32; | |
180 | cylinders = total_capacity / (heads * sectors); | |
181 | if (cylinders > 1024) { | |
182 | heads = 255; | |
183 | sectors = 63; | |
184 | cylinders = total_capacity / (heads * sectors); | |
185 | } | |
186 | geom[0] = heads; | |
187 | geom[1] = sectors; | |
188 | geom[2] = cylinders; | |
189 | return 0; | |
190 | } | |
191 | ||
192 | static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) | |
193 | { | |
194 | struct pci_dev *pdev = acb->pdev; | |
195 | struct MessageUnit __iomem *reg = acb->pmu; | |
196 | u32 ccb_phyaddr_hi32; | |
197 | void *dma_coherent; | |
198 | dma_addr_t dma_coherent_handle, dma_addr; | |
199 | struct CommandControlBlock *ccb_tmp; | |
200 | int i, j; | |
201 | ||
202 | dma_coherent = dma_alloc_coherent(&pdev->dev, | |
203 | ARCMSR_MAX_FREECCB_NUM * | |
204 | sizeof (struct CommandControlBlock) + 0x20, | |
205 | &dma_coherent_handle, GFP_KERNEL); | |
206 | if (!dma_coherent) | |
207 | return -ENOMEM; | |
208 | ||
209 | acb->dma_coherent = dma_coherent; | |
210 | acb->dma_coherent_handle = dma_coherent_handle; | |
211 | ||
212 | if (((unsigned long)dma_coherent & 0x1F)) { | |
213 | dma_coherent = dma_coherent + | |
214 | (0x20 - ((unsigned long)dma_coherent & 0x1F)); | |
215 | dma_coherent_handle = dma_coherent_handle + | |
216 | (0x20 - ((unsigned long)dma_coherent_handle & 0x1F)); | |
217 | } | |
218 | ||
219 | dma_addr = dma_coherent_handle; | |
220 | ccb_tmp = (struct CommandControlBlock *)dma_coherent; | |
221 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { | |
222 | ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5; | |
223 | ccb_tmp->acb = acb; | |
224 | acb->pccb_pool[i] = ccb_tmp; | |
225 | list_add_tail(&ccb_tmp->list, &acb->ccb_free_list); | |
226 | dma_addr = dma_addr + sizeof (struct CommandControlBlock); | |
227 | ccb_tmp++; | |
228 | } | |
229 | ||
230 | acb->vir2phy_offset = (unsigned long)ccb_tmp - | |
231 | (unsigned long)dma_addr; | |
232 | for (i = 0; i < ARCMSR_MAX_TARGETID; i++) | |
233 | for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++) | |
234 | acb->devstate[i][j] = ARECA_RAID_GOOD; | |
235 | ||
236 | /* | |
237 | ** here we need to tell iop 331 our ccb_tmp.HighPart | |
238 | ** if ccb_tmp.HighPart is not zero | |
239 | */ | |
240 | ccb_phyaddr_hi32 = (uint32_t) ((dma_coherent_handle >> 16) >> 16); | |
241 | if (ccb_phyaddr_hi32 != 0) { | |
242 | writel(ARCMSR_SIGNATURE_SET_CONFIG, ®->message_rwbuffer[0]); | |
243 | writel(ccb_phyaddr_hi32, ®->message_rwbuffer[1]); | |
244 | writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, ®->inbound_msgaddr0); | |
245 | if (arcmsr_wait_msgint_ready(acb)) | |
246 | printk(KERN_NOTICE "arcmsr%d: " | |
247 | "'set ccb high part physical address' timeout\n", | |
248 | acb->host->host_no); | |
249 | } | |
250 | ||
251 | writel(readl(®->outbound_intmask) | | |
252 | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, | |
253 | ®->outbound_intmask); | |
254 | return 0; | |
255 | } | |
256 | ||
257 | static int arcmsr_probe(struct pci_dev *pdev, | |
258 | const struct pci_device_id *id) | |
259 | { | |
260 | struct Scsi_Host *host; | |
261 | struct AdapterControlBlock *acb; | |
262 | uint8_t bus, dev_fun; | |
263 | int error; | |
264 | ||
265 | error = pci_enable_device(pdev); | |
266 | if (error) | |
267 | goto out; | |
268 | pci_set_master(pdev); | |
269 | ||
270 | host = scsi_host_alloc(&arcmsr_scsi_host_template, | |
271 | sizeof(struct AdapterControlBlock)); | |
272 | if (!host) { | |
273 | error = -ENOMEM; | |
274 | goto out_disable_device; | |
275 | } | |
276 | acb = (struct AdapterControlBlock *)host->hostdata; | |
277 | memset(acb, 0, sizeof (struct AdapterControlBlock)); | |
278 | ||
279 | error = pci_set_dma_mask(pdev, DMA_64BIT_MASK); | |
280 | if (error) { | |
281 | error = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
282 | if (error) { | |
283 | printk(KERN_WARNING | |
284 | "scsi%d: No suitable DMA mask available\n", | |
285 | host->host_no); | |
286 | goto out_host_put; | |
287 | } | |
288 | } | |
289 | bus = pdev->bus->number; | |
290 | dev_fun = pdev->devfn; | |
291 | acb->host = host; | |
292 | acb->pdev = pdev; | |
293 | host->max_sectors = ARCMSR_MAX_XFER_SECTORS; | |
294 | host->max_lun = ARCMSR_MAX_TARGETLUN; | |
295 | host->max_id = ARCMSR_MAX_TARGETID;/*16:8*/ | |
296 | host->max_cmd_len = 16; /*this is issue of 64bit LBA, over 2T byte*/ | |
297 | host->sg_tablesize = ARCMSR_MAX_SG_ENTRIES; | |
298 | host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds */ | |
299 | host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN; | |
300 | host->this_id = ARCMSR_SCSI_INITIATOR_ID; | |
301 | host->unique_id = (bus << 8) | dev_fun; | |
302 | host->irq = pdev->irq; | |
303 | error = pci_request_regions(pdev, "arcmsr"); | |
304 | if (error) | |
305 | goto out_host_put; | |
306 | ||
307 | acb->pmu = ioremap(pci_resource_start(pdev, 0), | |
308 | pci_resource_len(pdev, 0)); | |
309 | if (!acb->pmu) { | |
310 | printk(KERN_NOTICE "arcmsr%d: memory" | |
311 | " mapping region fail \n", acb->host->host_no); | |
312 | goto out_release_regions; | |
313 | } | |
314 | acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED | | |
315 | ACB_F_MESSAGE_RQBUFFER_CLEARED | | |
316 | ACB_F_MESSAGE_WQBUFFER_READED); | |
317 | acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER; | |
318 | INIT_LIST_HEAD(&acb->ccb_free_list); | |
319 | ||
320 | error = arcmsr_alloc_ccb_pool(acb); | |
321 | if (error) | |
322 | goto out_iounmap; | |
323 | ||
324 | error = request_irq(pdev->irq, arcmsr_do_interrupt, | |
325 | SA_INTERRUPT | SA_SHIRQ, "arcmsr", acb); | |
326 | if (error) | |
327 | goto out_free_ccb_pool; | |
328 | ||
329 | arcmsr_iop_init(acb); | |
330 | pci_set_drvdata(pdev, host); | |
331 | ||
332 | error = scsi_add_host(host, &pdev->dev); | |
333 | if (error) | |
334 | goto out_free_irq; | |
335 | ||
336 | error = arcmsr_alloc_sysfs_attr(acb); | |
337 | if (error) | |
338 | goto out_free_sysfs; | |
339 | ||
340 | scsi_scan_host(host); | |
341 | return 0; | |
342 | out_free_sysfs: | |
343 | out_free_irq: | |
344 | free_irq(pdev->irq, acb); | |
345 | out_free_ccb_pool: | |
346 | arcmsr_free_ccb_pool(acb); | |
347 | out_iounmap: | |
348 | iounmap(acb->pmu); | |
349 | out_release_regions: | |
350 | pci_release_regions(pdev); | |
351 | out_host_put: | |
352 | scsi_host_put(host); | |
353 | out_disable_device: | |
354 | pci_disable_device(pdev); | |
355 | out: | |
356 | return error; | |
357 | } | |
358 | ||
359 | static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb) | |
360 | { | |
361 | struct MessageUnit __iomem *reg = acb->pmu; | |
362 | ||
363 | writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0); | |
364 | if (arcmsr_wait_msgint_ready(acb)) | |
365 | printk(KERN_NOTICE | |
366 | "arcmsr%d: wait 'abort all outstanding command' timeout \n" | |
367 | , acb->host->host_no); | |
368 | } | |
369 | ||
370 | static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb) | |
371 | { | |
372 | struct AdapterControlBlock *acb = ccb->acb; | |
373 | struct scsi_cmnd *pcmd = ccb->pcmd; | |
374 | ||
375 | if (pcmd->use_sg != 0) { | |
376 | struct scatterlist *sl; | |
377 | ||
378 | sl = (struct scatterlist *)pcmd->request_buffer; | |
379 | pci_unmap_sg(acb->pdev, sl, pcmd->use_sg, pcmd->sc_data_direction); | |
380 | } | |
381 | else if (pcmd->request_bufflen != 0) | |
382 | pci_unmap_single(acb->pdev, | |
383 | pcmd->SCp.dma_handle, | |
384 | pcmd->request_bufflen, pcmd->sc_data_direction); | |
385 | } | |
386 | ||
387 | static void arcmsr_ccb_complete(struct CommandControlBlock *ccb, int stand_flag) | |
388 | { | |
389 | struct AdapterControlBlock *acb = ccb->acb; | |
390 | struct scsi_cmnd *pcmd = ccb->pcmd; | |
391 | ||
392 | arcmsr_pci_unmap_dma(ccb); | |
393 | if (stand_flag == 1) | |
394 | atomic_dec(&acb->ccboutstandingcount); | |
395 | ccb->startdone = ARCMSR_CCB_DONE; | |
396 | ccb->ccb_flags = 0; | |
397 | list_add_tail(&ccb->list, &acb->ccb_free_list); | |
398 | pcmd->scsi_done(pcmd); | |
399 | } | |
400 | ||
401 | static void arcmsr_remove(struct pci_dev *pdev) | |
402 | { | |
403 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
404 | struct AdapterControlBlock *acb = | |
405 | (struct AdapterControlBlock *) host->hostdata; | |
406 | struct MessageUnit __iomem *reg = acb->pmu; | |
407 | int poll_count = 0; | |
408 | ||
409 | arcmsr_free_sysfs_attr(acb); | |
410 | scsi_remove_host(host); | |
411 | arcmsr_stop_adapter_bgrb(acb); | |
412 | arcmsr_flush_adapter_cache(acb); | |
413 | writel(readl(®->outbound_intmask) | | |
414 | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, | |
415 | ®->outbound_intmask); | |
416 | acb->acb_flags |= ACB_F_SCSISTOPADAPTER; | |
417 | acb->acb_flags &= ~ACB_F_IOP_INITED; | |
418 | ||
419 | for (poll_count = 0; poll_count < 256; poll_count++) { | |
420 | if (!atomic_read(&acb->ccboutstandingcount)) | |
421 | break; | |
422 | arcmsr_interrupt(acb); | |
423 | msleep(25); | |
424 | } | |
425 | ||
426 | if (atomic_read(&acb->ccboutstandingcount)) { | |
427 | int i; | |
428 | ||
429 | arcmsr_abort_allcmd(acb); | |
430 | for (i = 0; i < ARCMSR_MAX_OUTSTANDING_CMD; i++) | |
431 | readl(®->outbound_queueport); | |
432 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { | |
433 | struct CommandControlBlock *ccb = acb->pccb_pool[i]; | |
434 | if (ccb->startdone == ARCMSR_CCB_START) { | |
435 | ccb->startdone = ARCMSR_CCB_ABORTED; | |
436 | ccb->pcmd->result = DID_ABORT << 16; | |
437 | arcmsr_ccb_complete(ccb, 1); | |
438 | } | |
439 | } | |
440 | } | |
441 | ||
442 | free_irq(pdev->irq, acb); | |
443 | iounmap(acb->pmu); | |
444 | arcmsr_free_ccb_pool(acb); | |
445 | pci_release_regions(pdev); | |
446 | ||
447 | scsi_host_put(host); | |
448 | ||
449 | pci_disable_device(pdev); | |
450 | pci_set_drvdata(pdev, NULL); | |
451 | } | |
452 | ||
453 | static void arcmsr_shutdown(struct pci_dev *pdev) | |
454 | { | |
455 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
456 | struct AdapterControlBlock *acb = | |
457 | (struct AdapterControlBlock *)host->hostdata; | |
458 | ||
459 | arcmsr_stop_adapter_bgrb(acb); | |
460 | arcmsr_flush_adapter_cache(acb); | |
461 | } | |
462 | ||
463 | static int arcmsr_module_init(void) | |
464 | { | |
465 | int error = 0; | |
466 | ||
467 | error = pci_register_driver(&arcmsr_pci_driver); | |
468 | return error; | |
469 | } | |
470 | ||
471 | static void arcmsr_module_exit(void) | |
472 | { | |
473 | pci_unregister_driver(&arcmsr_pci_driver); | |
474 | } | |
475 | module_init(arcmsr_module_init); | |
476 | module_exit(arcmsr_module_exit); | |
477 | ||
478 | static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb) | |
479 | { | |
480 | struct MessageUnit __iomem *reg = acb->pmu; | |
481 | u32 orig_mask = readl(®->outbound_intmask); | |
482 | ||
483 | writel(orig_mask | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, | |
484 | ®->outbound_intmask); | |
485 | return orig_mask; | |
486 | } | |
487 | ||
488 | static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, | |
489 | u32 orig_mask) | |
490 | { | |
491 | struct MessageUnit __iomem *reg = acb->pmu; | |
492 | u32 mask; | |
493 | ||
494 | mask = orig_mask & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE | | |
495 | ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE); | |
496 | writel(mask, ®->outbound_intmask); | |
497 | } | |
498 | ||
499 | static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb) | |
500 | { | |
501 | struct MessageUnit __iomem *reg=acb->pmu; | |
502 | ||
503 | writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0); | |
504 | if (arcmsr_wait_msgint_ready(acb)) | |
505 | printk(KERN_NOTICE | |
506 | "arcmsr%d: wait 'flush adapter cache' timeout \n" | |
507 | , acb->host->host_no); | |
508 | } | |
509 | ||
510 | static void arcmsr_report_sense_info(struct CommandControlBlock *ccb) | |
511 | { | |
512 | struct scsi_cmnd *pcmd = ccb->pcmd; | |
513 | struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer; | |
514 | ||
515 | pcmd->result = DID_OK << 16; | |
516 | if (sensebuffer) { | |
517 | int sense_data_length = | |
518 | sizeof (struct SENSE_DATA) < sizeof (pcmd->sense_buffer) | |
519 | ? sizeof (struct SENSE_DATA) : sizeof (pcmd->sense_buffer); | |
520 | memset(sensebuffer, 0, sizeof (pcmd->sense_buffer)); | |
521 | memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length); | |
522 | sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS; | |
523 | sensebuffer->Valid = 1; | |
524 | } | |
525 | } | |
526 | ||
527 | static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb) | |
528 | { | |
529 | struct MessageUnit __iomem *reg = acb->pmu; | |
530 | uint32_t Index; | |
531 | uint8_t Retries = 0x00; | |
532 | ||
533 | do { | |
534 | for (Index = 0; Index < 100; Index++) { | |
535 | if (readl(®->outbound_intstatus) | |
536 | & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) { | |
537 | writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT | |
538 | , ®->outbound_intstatus); | |
539 | return 0x00; | |
540 | } | |
541 | msleep_interruptible(10); | |
542 | }/*max 1 seconds*/ | |
543 | } while (Retries++ < 20);/*max 20 sec*/ | |
544 | return 0xff; | |
545 | } | |
546 | ||
547 | static void arcmsr_build_ccb(struct AdapterControlBlock *acb, | |
548 | struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd) | |
549 | { | |
550 | struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb; | |
551 | int8_t *psge = (int8_t *)&arcmsr_cdb->u; | |
552 | uint32_t address_lo, address_hi; | |
553 | int arccdbsize = 0x30; | |
554 | ||
555 | ccb->pcmd = pcmd; | |
556 | memset(arcmsr_cdb, 0, sizeof (struct ARCMSR_CDB)); | |
557 | arcmsr_cdb->Bus = 0; | |
558 | arcmsr_cdb->TargetID = pcmd->device->id; | |
559 | arcmsr_cdb->LUN = pcmd->device->lun; | |
560 | arcmsr_cdb->Function = 1; | |
561 | arcmsr_cdb->CdbLength = (uint8_t)pcmd->cmd_len; | |
562 | arcmsr_cdb->Context = (unsigned long)arcmsr_cdb; | |
563 | memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len); | |
564 | if (pcmd->use_sg) { | |
565 | int length, sgcount, i, cdb_sgcount = 0; | |
566 | struct scatterlist *sl; | |
567 | ||
568 | /* Get Scatter Gather List from scsiport. */ | |
569 | sl = (struct scatterlist *) pcmd->request_buffer; | |
570 | sgcount = pci_map_sg(acb->pdev, sl, pcmd->use_sg, | |
571 | pcmd->sc_data_direction); | |
572 | /* map stor port SG list to our iop SG List. */ | |
573 | for (i = 0; i < sgcount; i++) { | |
574 | /* Get the physical address of the current data pointer */ | |
575 | length = cpu_to_le32(sg_dma_len(sl)); | |
576 | address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sl))); | |
577 | address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sl))); | |
578 | if (address_hi == 0) { | |
579 | struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge; | |
580 | ||
581 | pdma_sg->address = address_lo; | |
582 | pdma_sg->length = length; | |
583 | psge += sizeof (struct SG32ENTRY); | |
584 | arccdbsize += sizeof (struct SG32ENTRY); | |
585 | } else { | |
586 | struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge; | |
587 | ||
588 | pdma_sg->addresshigh = address_hi; | |
589 | pdma_sg->address = address_lo; | |
590 | pdma_sg->length = length|IS_SG64_ADDR; | |
591 | psge += sizeof (struct SG64ENTRY); | |
592 | arccdbsize += sizeof (struct SG64ENTRY); | |
593 | } | |
594 | sl++; | |
595 | cdb_sgcount++; | |
596 | } | |
597 | arcmsr_cdb->sgcount = (uint8_t)cdb_sgcount; | |
598 | arcmsr_cdb->DataLength = pcmd->request_bufflen; | |
599 | if ( arccdbsize > 256) | |
600 | arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE; | |
601 | } else if (pcmd->request_bufflen) { | |
602 | dma_addr_t dma_addr; | |
603 | dma_addr = pci_map_single(acb->pdev, pcmd->request_buffer, | |
604 | pcmd->request_bufflen, pcmd->sc_data_direction); | |
605 | pcmd->SCp.dma_handle = dma_addr; | |
606 | address_lo = cpu_to_le32(dma_addr_lo32(dma_addr)); | |
607 | address_hi = cpu_to_le32(dma_addr_hi32(dma_addr)); | |
608 | if (address_hi == 0) { | |
609 | struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge; | |
610 | pdma_sg->address = address_lo; | |
611 | pdma_sg->length = pcmd->request_bufflen; | |
612 | } else { | |
613 | struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge; | |
614 | pdma_sg->addresshigh = address_hi; | |
615 | pdma_sg->address = address_lo; | |
616 | pdma_sg->length = pcmd->request_bufflen|IS_SG64_ADDR; | |
617 | } | |
618 | arcmsr_cdb->sgcount = 1; | |
619 | arcmsr_cdb->DataLength = pcmd->request_bufflen; | |
620 | } | |
621 | if (pcmd->sc_data_direction == DMA_TO_DEVICE ) { | |
622 | arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE; | |
623 | ccb->ccb_flags |= CCB_FLAG_WRITE; | |
624 | } | |
625 | } | |
626 | ||
627 | static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb) | |
628 | { | |
629 | struct MessageUnit __iomem *reg = acb->pmu; | |
630 | uint32_t cdb_shifted_phyaddr = ccb->cdb_shifted_phyaddr; | |
631 | struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb; | |
632 | ||
633 | atomic_inc(&acb->ccboutstandingcount); | |
634 | ccb->startdone = ARCMSR_CCB_START; | |
635 | if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) | |
636 | writel(cdb_shifted_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE, | |
637 | ®->inbound_queueport); | |
638 | else | |
639 | writel(cdb_shifted_phyaddr, ®->inbound_queueport); | |
640 | } | |
641 | ||
642 | void arcmsr_post_Qbuffer(struct AdapterControlBlock *acb) | |
643 | { | |
644 | struct MessageUnit __iomem *reg = acb->pmu; | |
645 | struct QBUFFER __iomem *pwbuffer = (struct QBUFFER __iomem *) ®->message_wbuffer; | |
646 | uint8_t __iomem *iop_data = (uint8_t __iomem *) pwbuffer->data; | |
647 | int32_t allxfer_len = 0; | |
648 | ||
649 | if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) { | |
650 | acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED); | |
651 | while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex) | |
652 | && (allxfer_len < 124)) { | |
653 | writeb(acb->wqbuffer[acb->wqbuf_firstindex], iop_data); | |
654 | acb->wqbuf_firstindex++; | |
655 | acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER; | |
656 | iop_data++; | |
657 | allxfer_len++; | |
658 | } | |
659 | writel(allxfer_len, &pwbuffer->data_len); | |
660 | writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK | |
661 | , ®->inbound_doorbell); | |
662 | } | |
663 | } | |
664 | ||
665 | static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb) | |
666 | { | |
667 | struct MessageUnit __iomem *reg = acb->pmu; | |
668 | ||
669 | acb->acb_flags &= ~ACB_F_MSG_START_BGRB; | |
670 | writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0); | |
671 | if (arcmsr_wait_msgint_ready(acb)) | |
672 | printk(KERN_NOTICE | |
673 | "arcmsr%d: wait 'stop adapter background rebulid' timeout \n" | |
674 | , acb->host->host_no); | |
675 | } | |
676 | ||
677 | static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb) | |
678 | { | |
679 | dma_free_coherent(&acb->pdev->dev, | |
680 | ARCMSR_MAX_FREECCB_NUM * sizeof (struct CommandControlBlock) + 0x20, | |
681 | acb->dma_coherent, | |
682 | acb->dma_coherent_handle); | |
683 | } | |
684 | ||
685 | static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb) | |
686 | { | |
687 | struct MessageUnit __iomem *reg = acb->pmu; | |
688 | struct CommandControlBlock *ccb; | |
689 | uint32_t flag_ccb, outbound_intstatus, outbound_doorbell; | |
690 | ||
691 | outbound_intstatus = readl(®->outbound_intstatus) | |
692 | & acb->outbound_int_enable; | |
693 | writel(outbound_intstatus, ®->outbound_intstatus); | |
694 | if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) { | |
695 | outbound_doorbell = readl(®->outbound_doorbell); | |
696 | writel(outbound_doorbell, ®->outbound_doorbell); | |
697 | if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) { | |
698 | struct QBUFFER __iomem * prbuffer = | |
699 | (struct QBUFFER __iomem *) ®->message_rbuffer; | |
700 | uint8_t __iomem * iop_data = (uint8_t __iomem *)prbuffer->data; | |
701 | int32_t my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex; | |
702 | ||
703 | rqbuf_lastindex = acb->rqbuf_lastindex; | |
704 | rqbuf_firstindex = acb->rqbuf_firstindex; | |
705 | iop_len = readl(&prbuffer->data_len); | |
706 | my_empty_len = (rqbuf_firstindex - rqbuf_lastindex - 1) | |
707 | &(ARCMSR_MAX_QBUFFER - 1); | |
708 | if (my_empty_len >= iop_len) { | |
709 | while (iop_len > 0) { | |
710 | acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data); | |
711 | acb->rqbuf_lastindex++; | |
712 | acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER; | |
713 | iop_data++; | |
714 | iop_len--; | |
715 | } | |
716 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, | |
717 | ®->inbound_doorbell); | |
718 | } else | |
719 | acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW; | |
720 | } | |
721 | if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) { | |
722 | acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED; | |
723 | if (acb->wqbuf_firstindex != acb->wqbuf_lastindex) { | |
724 | struct QBUFFER __iomem * pwbuffer = | |
725 | (struct QBUFFER __iomem *) ®->message_wbuffer; | |
726 | uint8_t __iomem * iop_data = (uint8_t __iomem *) pwbuffer->data; | |
727 | int32_t allxfer_len = 0; | |
728 | ||
729 | acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED); | |
730 | while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex) | |
731 | && (allxfer_len < 124)) { | |
732 | writeb(acb->wqbuffer[acb->wqbuf_firstindex], iop_data); | |
733 | acb->wqbuf_firstindex++; | |
734 | acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER; | |
735 | iop_data++; | |
736 | allxfer_len++; | |
737 | } | |
738 | writel(allxfer_len, &pwbuffer->data_len); | |
739 | writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK, | |
740 | ®->inbound_doorbell); | |
741 | } | |
742 | if (acb->wqbuf_firstindex == acb->wqbuf_lastindex) | |
743 | acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED; | |
744 | } | |
745 | } | |
746 | if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) { | |
747 | int id, lun; | |
748 | /* | |
749 | **************************************************************** | |
750 | ** areca cdb command done | |
751 | **************************************************************** | |
752 | */ | |
753 | while (1) { | |
754 | if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) | |
755 | break;/*chip FIFO no ccb for completion already*/ | |
756 | /* check if command done with no error*/ | |
757 | ccb = (struct CommandControlBlock *)(acb->vir2phy_offset + | |
758 | (flag_ccb << 5)); | |
759 | if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) { | |
760 | if (ccb->startdone == ARCMSR_CCB_ABORTED) { | |
761 | struct scsi_cmnd *abortcmd=ccb->pcmd; | |
762 | if (abortcmd) { | |
763 | abortcmd->result |= DID_ABORT >> 16; | |
764 | arcmsr_ccb_complete(ccb, 1); | |
765 | printk(KERN_NOTICE | |
766 | "arcmsr%d: ccb='0x%p' isr got aborted command \n" | |
767 | , acb->host->host_no, ccb); | |
768 | } | |
769 | continue; | |
770 | } | |
771 | printk(KERN_NOTICE | |
772 | "arcmsr%d: isr get an illegal ccb command done acb='0x%p'" | |
773 | "ccb='0x%p' ccbacb='0x%p' startdone = 0x%x" | |
774 | " ccboutstandingcount=%d \n" | |
775 | , acb->host->host_no | |
776 | , acb | |
777 | , ccb | |
778 | , ccb->acb | |
779 | , ccb->startdone | |
780 | , atomic_read(&acb->ccboutstandingcount)); | |
781 | continue; | |
782 | } | |
783 | id = ccb->pcmd->device->id; | |
784 | lun = ccb->pcmd->device->lun; | |
785 | if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) { | |
786 | if (acb->devstate[id][lun] == ARECA_RAID_GONE) | |
787 | acb->devstate[id][lun] = ARECA_RAID_GOOD; | |
788 | ccb->pcmd->result = DID_OK << 16; | |
789 | arcmsr_ccb_complete(ccb, 1); | |
790 | } else { | |
791 | switch(ccb->arcmsr_cdb.DeviceStatus) { | |
792 | case ARCMSR_DEV_SELECT_TIMEOUT: { | |
793 | acb->devstate[id][lun] = ARECA_RAID_GONE; | |
794 | ccb->pcmd->result = DID_TIME_OUT << 16; | |
795 | arcmsr_ccb_complete(ccb, 1); | |
796 | } | |
797 | break; | |
798 | case ARCMSR_DEV_ABORTED: | |
799 | case ARCMSR_DEV_INIT_FAIL: { | |
800 | acb->devstate[id][lun] = ARECA_RAID_GONE; | |
801 | ccb->pcmd->result = DID_BAD_TARGET << 16; | |
802 | arcmsr_ccb_complete(ccb, 1); | |
803 | } | |
804 | break; | |
805 | case ARCMSR_DEV_CHECK_CONDITION: { | |
806 | acb->devstate[id][lun] = ARECA_RAID_GOOD; | |
807 | arcmsr_report_sense_info(ccb); | |
808 | arcmsr_ccb_complete(ccb, 1); | |
809 | } | |
810 | break; | |
811 | default: | |
812 | printk(KERN_NOTICE | |
813 | "arcmsr%d: scsi id=%d lun=%d" | |
814 | " isr get command error done," | |
815 | "but got unknown DeviceStatus = 0x%x \n" | |
816 | , acb->host->host_no | |
817 | , id | |
818 | , lun | |
819 | , ccb->arcmsr_cdb.DeviceStatus); | |
820 | acb->devstate[id][lun] = ARECA_RAID_GONE; | |
821 | ccb->pcmd->result = DID_NO_CONNECT << 16; | |
822 | arcmsr_ccb_complete(ccb, 1); | |
823 | break; | |
824 | } | |
825 | } | |
826 | }/*drain reply FIFO*/ | |
827 | } | |
828 | if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT)) | |
829 | return IRQ_NONE; | |
830 | return IRQ_HANDLED; | |
831 | } | |
832 | ||
833 | static void arcmsr_iop_parking(struct AdapterControlBlock *acb) | |
834 | { | |
835 | if (acb) { | |
836 | /* stop adapter background rebuild */ | |
837 | if (acb->acb_flags & ACB_F_MSG_START_BGRB) { | |
838 | acb->acb_flags &= ~ACB_F_MSG_START_BGRB; | |
839 | arcmsr_stop_adapter_bgrb(acb); | |
840 | arcmsr_flush_adapter_cache(acb); | |
841 | } | |
842 | } | |
843 | } | |
844 | ||
845 | static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, struct scsi_cmnd *cmd) | |
846 | { | |
847 | struct MessageUnit __iomem *reg = acb->pmu; | |
848 | struct CMD_MESSAGE_FIELD *pcmdmessagefld; | |
849 | int retvalue = 0, transfer_len = 0; | |
850 | char *buffer; | |
851 | uint32_t controlcode = (uint32_t ) cmd->cmnd[5] << 24 | | |
852 | (uint32_t ) cmd->cmnd[6] << 16 | | |
853 | (uint32_t ) cmd->cmnd[7] << 8 | | |
854 | (uint32_t ) cmd->cmnd[8]; | |
855 | /* 4 bytes: Areca io control code */ | |
856 | if (cmd->use_sg) { | |
857 | struct scatterlist *sg = (struct scatterlist *)cmd->request_buffer; | |
858 | ||
859 | buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; | |
860 | if (cmd->use_sg > 1) { | |
861 | retvalue = ARCMSR_MESSAGE_FAIL; | |
862 | goto message_out; | |
863 | } | |
864 | transfer_len += sg->length; | |
865 | } else { | |
866 | buffer = cmd->request_buffer; | |
867 | transfer_len = cmd->request_bufflen; | |
868 | } | |
869 | if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) { | |
870 | retvalue = ARCMSR_MESSAGE_FAIL; | |
871 | goto message_out; | |
872 | } | |
873 | pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer; | |
874 | switch(controlcode) { | |
875 | case ARCMSR_MESSAGE_READ_RQBUFFER: { | |
876 | unsigned long *ver_addr; | |
877 | dma_addr_t buf_handle; | |
878 | uint8_t *pQbuffer, *ptmpQbuffer; | |
879 | int32_t allxfer_len = 0; | |
880 | ||
881 | ver_addr = pci_alloc_consistent(acb->pdev, 1032, &buf_handle); | |
882 | if (!ver_addr) { | |
883 | retvalue = ARCMSR_MESSAGE_FAIL; | |
884 | goto message_out; | |
885 | } | |
886 | ptmpQbuffer = (uint8_t *) ver_addr; | |
887 | while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex) | |
888 | && (allxfer_len < 1031)) { | |
889 | pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex]; | |
890 | memcpy(ptmpQbuffer, pQbuffer, 1); | |
891 | acb->rqbuf_firstindex++; | |
892 | acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER; | |
893 | ptmpQbuffer++; | |
894 | allxfer_len++; | |
895 | } | |
896 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { | |
897 | struct QBUFFER __iomem * prbuffer = (struct QBUFFER __iomem *) | |
898 | ®->message_rbuffer; | |
899 | uint8_t __iomem * iop_data = (uint8_t __iomem *)prbuffer->data; | |
900 | int32_t iop_len; | |
901 | ||
902 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; | |
903 | iop_len = readl(&prbuffer->data_len); | |
904 | while (iop_len > 0) { | |
905 | acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data); | |
906 | acb->rqbuf_lastindex++; | |
907 | acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER; | |
908 | iop_data++; | |
909 | iop_len--; | |
910 | } | |
911 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, | |
912 | ®->inbound_doorbell); | |
913 | } | |
914 | memcpy(pcmdmessagefld->messagedatabuffer, | |
915 | (uint8_t *)ver_addr, allxfer_len); | |
916 | pcmdmessagefld->cmdmessage.Length = allxfer_len; | |
917 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; | |
918 | pci_free_consistent(acb->pdev, 1032, ver_addr, buf_handle); | |
919 | } | |
920 | break; | |
921 | case ARCMSR_MESSAGE_WRITE_WQBUFFER: { | |
922 | unsigned long *ver_addr; | |
923 | dma_addr_t buf_handle; | |
924 | int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex; | |
925 | uint8_t *pQbuffer, *ptmpuserbuffer; | |
926 | ||
927 | ver_addr = pci_alloc_consistent(acb->pdev, 1032, &buf_handle); | |
928 | if (!ver_addr) { | |
929 | retvalue = ARCMSR_MESSAGE_FAIL; | |
930 | goto message_out; | |
931 | } | |
932 | ptmpuserbuffer = (uint8_t *)ver_addr; | |
933 | user_len = pcmdmessagefld->cmdmessage.Length; | |
934 | memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len); | |
935 | wqbuf_lastindex = acb->wqbuf_lastindex; | |
936 | wqbuf_firstindex = acb->wqbuf_firstindex; | |
937 | if (wqbuf_lastindex != wqbuf_firstindex) { | |
938 | struct SENSE_DATA *sensebuffer = | |
939 | (struct SENSE_DATA *)cmd->sense_buffer; | |
940 | arcmsr_post_Qbuffer(acb); | |
941 | /* has error report sensedata */ | |
942 | sensebuffer->ErrorCode = 0x70; | |
943 | sensebuffer->SenseKey = ILLEGAL_REQUEST; | |
944 | sensebuffer->AdditionalSenseLength = 0x0A; | |
945 | sensebuffer->AdditionalSenseCode = 0x20; | |
946 | sensebuffer->Valid = 1; | |
947 | retvalue = ARCMSR_MESSAGE_FAIL; | |
948 | } else { | |
949 | my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1) | |
950 | &(ARCMSR_MAX_QBUFFER - 1); | |
951 | if (my_empty_len >= user_len) { | |
952 | while (user_len > 0) { | |
953 | pQbuffer = | |
954 | &acb->wqbuffer[acb->wqbuf_lastindex]; | |
955 | memcpy(pQbuffer, ptmpuserbuffer, 1); | |
956 | acb->wqbuf_lastindex++; | |
957 | acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER; | |
958 | ptmpuserbuffer++; | |
959 | user_len--; | |
960 | } | |
961 | if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) { | |
962 | acb->acb_flags &= | |
963 | ~ACB_F_MESSAGE_WQBUFFER_CLEARED; | |
964 | arcmsr_post_Qbuffer(acb); | |
965 | } | |
966 | } else { | |
967 | /* has error report sensedata */ | |
968 | struct SENSE_DATA *sensebuffer = | |
969 | (struct SENSE_DATA *)cmd->sense_buffer; | |
970 | sensebuffer->ErrorCode = 0x70; | |
971 | sensebuffer->SenseKey = ILLEGAL_REQUEST; | |
972 | sensebuffer->AdditionalSenseLength = 0x0A; | |
973 | sensebuffer->AdditionalSenseCode = 0x20; | |
974 | sensebuffer->Valid = 1; | |
975 | retvalue = ARCMSR_MESSAGE_FAIL; | |
976 | } | |
977 | } | |
978 | pci_free_consistent(acb->pdev, 1032, ver_addr, buf_handle); | |
979 | } | |
980 | break; | |
981 | case ARCMSR_MESSAGE_CLEAR_RQBUFFER: { | |
982 | uint8_t *pQbuffer = acb->rqbuffer; | |
983 | ||
984 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { | |
985 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; | |
986 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, | |
987 | ®->inbound_doorbell); | |
988 | } | |
989 | acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED; | |
990 | acb->rqbuf_firstindex = 0; | |
991 | acb->rqbuf_lastindex = 0; | |
992 | memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER); | |
993 | pcmdmessagefld->cmdmessage.ReturnCode = | |
994 | ARCMSR_MESSAGE_RETURNCODE_OK; | |
995 | } | |
996 | break; | |
997 | case ARCMSR_MESSAGE_CLEAR_WQBUFFER: { | |
998 | uint8_t *pQbuffer = acb->wqbuffer; | |
999 | ||
1000 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { | |
1001 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; | |
1002 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK | |
1003 | , ®->inbound_doorbell); | |
1004 | } | |
1005 | acb->acb_flags |= | |
1006 | (ACB_F_MESSAGE_WQBUFFER_CLEARED | | |
1007 | ACB_F_MESSAGE_WQBUFFER_READED); | |
1008 | acb->wqbuf_firstindex = 0; | |
1009 | acb->wqbuf_lastindex = 0; | |
1010 | memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER); | |
1011 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1012 | ARCMSR_MESSAGE_RETURNCODE_OK; | |
1013 | } | |
1014 | break; | |
1015 | case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: { | |
1016 | uint8_t *pQbuffer; | |
1017 | ||
1018 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { | |
1019 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; | |
1020 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK | |
1021 | , ®->inbound_doorbell); | |
1022 | } | |
1023 | acb->acb_flags |= | |
1024 | (ACB_F_MESSAGE_WQBUFFER_CLEARED | |
1025 | | ACB_F_MESSAGE_RQBUFFER_CLEARED | |
1026 | | ACB_F_MESSAGE_WQBUFFER_READED); | |
1027 | acb->rqbuf_firstindex = 0; | |
1028 | acb->rqbuf_lastindex = 0; | |
1029 | acb->wqbuf_firstindex = 0; | |
1030 | acb->wqbuf_lastindex = 0; | |
1031 | pQbuffer = acb->rqbuffer; | |
1032 | memset(pQbuffer, 0, sizeof (struct QBUFFER)); | |
1033 | pQbuffer = acb->wqbuffer; | |
1034 | memset(pQbuffer, 0, sizeof (struct QBUFFER)); | |
1035 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; | |
1036 | } | |
1037 | break; | |
1038 | case ARCMSR_MESSAGE_RETURN_CODE_3F: { | |
1039 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F; | |
1040 | } | |
1041 | break; | |
1042 | case ARCMSR_MESSAGE_SAY_HELLO: { | |
1043 | int8_t * hello_string = "Hello! I am ARCMSR"; | |
1044 | ||
1045 | memcpy(pcmdmessagefld->messagedatabuffer, hello_string | |
1046 | , (int16_t)strlen(hello_string)); | |
1047 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; | |
1048 | } | |
1049 | break; | |
1050 | case ARCMSR_MESSAGE_SAY_GOODBYE: | |
1051 | arcmsr_iop_parking(acb); | |
1052 | break; | |
1053 | case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: | |
1054 | arcmsr_flush_adapter_cache(acb); | |
1055 | break; | |
1056 | default: | |
1057 | retvalue = ARCMSR_MESSAGE_FAIL; | |
1058 | } | |
1059 | message_out: | |
1060 | if (cmd->use_sg) { | |
1061 | struct scatterlist *sg; | |
1062 | ||
1063 | sg = (struct scatterlist *) cmd->request_buffer; | |
1064 | kunmap_atomic(buffer - sg->offset, KM_IRQ0); | |
1065 | } | |
1066 | return retvalue; | |
1067 | } | |
1068 | ||
1069 | static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb) | |
1070 | { | |
1071 | struct list_head *head = &acb->ccb_free_list; | |
1072 | struct CommandControlBlock *ccb = NULL; | |
1073 | ||
1074 | if (!list_empty(head)) { | |
1075 | ccb = list_entry(head->next, struct CommandControlBlock, list); | |
1076 | list_del(head->next); | |
1077 | } | |
1078 | return ccb; | |
1079 | } | |
1080 | ||
1081 | static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb, | |
1082 | struct scsi_cmnd *cmd) | |
1083 | { | |
1084 | switch (cmd->cmnd[0]) { | |
1085 | case INQUIRY: { | |
1086 | unsigned char inqdata[36]; | |
1087 | char *buffer; | |
1088 | ||
1089 | if (cmd->device->lun) { | |
1090 | cmd->result = (DID_TIME_OUT << 16); | |
1091 | cmd->scsi_done(cmd); | |
1092 | return; | |
1093 | } | |
1094 | inqdata[0] = TYPE_PROCESSOR; | |
1095 | /* Periph Qualifier & Periph Dev Type */ | |
1096 | inqdata[1] = 0; | |
1097 | /* rem media bit & Dev Type Modifier */ | |
1098 | inqdata[2] = 0; | |
1099 | /* ISO,ECMA,& ANSI versions */ | |
1100 | inqdata[4] = 31; | |
1101 | /* length of additional data */ | |
1102 | strncpy(&inqdata[8], "Areca ", 8); | |
1103 | /* Vendor Identification */ | |
1104 | strncpy(&inqdata[16], "RAID controller ", 16); | |
1105 | /* Product Identification */ | |
1106 | strncpy(&inqdata[32], "R001", 4); /* Product Revision */ | |
1107 | if (cmd->use_sg) { | |
1108 | struct scatterlist *sg; | |
1109 | ||
1110 | sg = (struct scatterlist *) cmd->request_buffer; | |
1111 | buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; | |
1112 | } else { | |
1113 | buffer = cmd->request_buffer; | |
1114 | } | |
1115 | memcpy(buffer, inqdata, sizeof(inqdata)); | |
1116 | if (cmd->use_sg) { | |
1117 | struct scatterlist *sg; | |
1118 | ||
1119 | sg = (struct scatterlist *) cmd->request_buffer; | |
1120 | kunmap_atomic(buffer - sg->offset, KM_IRQ0); | |
1121 | } | |
1122 | cmd->scsi_done(cmd); | |
1123 | } | |
1124 | break; | |
1125 | case WRITE_BUFFER: | |
1126 | case READ_BUFFER: { | |
1127 | if (arcmsr_iop_message_xfer(acb, cmd)) | |
1128 | cmd->result = (DID_ERROR << 16); | |
1129 | cmd->scsi_done(cmd); | |
1130 | } | |
1131 | break; | |
1132 | default: | |
1133 | cmd->scsi_done(cmd); | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | static int arcmsr_queue_command(struct scsi_cmnd *cmd, | |
1138 | void (* done)(struct scsi_cmnd *)) | |
1139 | { | |
1140 | struct Scsi_Host *host = cmd->device->host; | |
1141 | struct AdapterControlBlock *acb = | |
1142 | (struct AdapterControlBlock *) host->hostdata; | |
1143 | struct CommandControlBlock *ccb; | |
1144 | int target = cmd->device->id; | |
1145 | int lun = cmd->device->lun; | |
1146 | ||
1147 | cmd->scsi_done = done; | |
1148 | cmd->host_scribble = NULL; | |
1149 | cmd->result = 0; | |
1150 | if (acb->acb_flags & ACB_F_BUS_RESET) { | |
1151 | printk(KERN_NOTICE "arcmsr%d: bus reset" | |
1152 | " and return busy \n" | |
1153 | , acb->host->host_no); | |
1154 | return SCSI_MLQUEUE_HOST_BUSY; | |
1155 | } | |
1156 | if(target == 16) { | |
1157 | /* virtual device for iop message transfer */ | |
1158 | arcmsr_handle_virtual_command(acb, cmd); | |
1159 | return 0; | |
1160 | } | |
1161 | if (acb->devstate[target][lun] == ARECA_RAID_GONE) { | |
1162 | uint8_t block_cmd; | |
1163 | ||
1164 | block_cmd = cmd->cmnd[0] & 0x0f; | |
1165 | if (block_cmd == 0x08 || block_cmd == 0x0a) { | |
1166 | printk(KERN_NOTICE | |
1167 | "arcmsr%d: block 'read/write'" | |
1168 | "command with gone raid volume" | |
1169 | " Cmd=%2x, TargetId=%d, Lun=%d \n" | |
1170 | , acb->host->host_no | |
1171 | , cmd->cmnd[0] | |
1172 | , target, lun); | |
1173 | cmd->result = (DID_NO_CONNECT << 16); | |
1174 | cmd->scsi_done(cmd); | |
1175 | return 0; | |
1176 | } | |
1177 | } | |
1178 | if (atomic_read(&acb->ccboutstandingcount) >= | |
1179 | ARCMSR_MAX_OUTSTANDING_CMD) | |
1180 | return SCSI_MLQUEUE_HOST_BUSY; | |
1181 | ||
1182 | ccb = arcmsr_get_freeccb(acb); | |
1183 | if (!ccb) | |
1184 | return SCSI_MLQUEUE_HOST_BUSY; | |
1185 | arcmsr_build_ccb(acb, ccb, cmd); | |
1186 | arcmsr_post_ccb(acb, ccb); | |
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb) | |
1191 | { | |
1192 | struct MessageUnit __iomem *reg = acb->pmu; | |
1193 | char *acb_firm_model = acb->firm_model; | |
1194 | char *acb_firm_version = acb->firm_version; | |
1195 | char __iomem *iop_firm_model = (char __iomem *) ®->message_rwbuffer[15]; | |
1196 | char __iomem *iop_firm_version = (char __iomem *) ®->message_rwbuffer[17]; | |
1197 | int count; | |
1198 | ||
1199 | writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0); | |
1200 | if (arcmsr_wait_msgint_ready(acb)) | |
1201 | printk(KERN_NOTICE | |
1202 | "arcmsr%d: wait " | |
1203 | "'get adapter firmware miscellaneous data' timeout \n" | |
1204 | , acb->host->host_no); | |
1205 | count = 8; | |
1206 | while (count) { | |
1207 | *acb_firm_model = readb(iop_firm_model); | |
1208 | acb_firm_model++; | |
1209 | iop_firm_model++; | |
1210 | count--; | |
1211 | } | |
1212 | count = 16; | |
1213 | while (count) { | |
1214 | *acb_firm_version = readb(iop_firm_version); | |
1215 | acb_firm_version++; | |
1216 | iop_firm_version++; | |
1217 | count--; | |
1218 | } | |
1219 | printk(KERN_INFO | |
1220 | "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n" | |
1221 | , acb->host->host_no | |
1222 | , acb->firm_version); | |
1223 | acb->firm_request_len = readl(®->message_rwbuffer[1]); | |
1224 | acb->firm_numbers_queue = readl(®->message_rwbuffer[2]); | |
1225 | acb->firm_sdram_size = readl(®->message_rwbuffer[3]); | |
1226 | acb->firm_hd_channels = readl(®->message_rwbuffer[4]); | |
1227 | } | |
1228 | ||
1229 | static void arcmsr_polling_ccbdone(struct AdapterControlBlock *acb, | |
1230 | struct CommandControlBlock *poll_ccb) | |
1231 | { | |
1232 | struct MessageUnit __iomem *reg = acb->pmu; | |
1233 | struct CommandControlBlock *ccb; | |
1234 | uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0; | |
1235 | int id, lun; | |
1236 | ||
1237 | polling_ccb_retry: | |
1238 | poll_count++; | |
1239 | outbound_intstatus = readl(®->outbound_intstatus) | |
1240 | & acb->outbound_int_enable; | |
1241 | writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/ | |
1242 | while (1) { | |
1243 | if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) { | |
1244 | if (poll_ccb_done) | |
1245 | break; | |
1246 | else { | |
1247 | msleep(25); | |
1248 | if (poll_count > 100) | |
1249 | break; | |
1250 | goto polling_ccb_retry; | |
1251 | } | |
1252 | } | |
1253 | ccb = (struct CommandControlBlock *) | |
1254 | (acb->vir2phy_offset + (flag_ccb << 5)); | |
1255 | if ((ccb->acb != acb) || | |
1256 | (ccb->startdone != ARCMSR_CCB_START)) { | |
1257 | if ((ccb->startdone == ARCMSR_CCB_ABORTED) || | |
1258 | (ccb == poll_ccb)) { | |
1259 | printk(KERN_NOTICE | |
1260 | "arcmsr%d: scsi id=%d lun=%d ccb='0x%p'" | |
1261 | " poll command abort successfully \n" | |
1262 | , acb->host->host_no | |
1263 | , ccb->pcmd->device->id | |
1264 | , ccb->pcmd->device->lun | |
1265 | , ccb); | |
1266 | ccb->pcmd->result = DID_ABORT << 16; | |
1267 | arcmsr_ccb_complete(ccb, 1); | |
1268 | poll_ccb_done = 1; | |
1269 | continue; | |
1270 | } | |
1271 | printk(KERN_NOTICE | |
1272 | "arcmsr%d: polling get an illegal ccb" | |
1273 | " command done ccb='0x%p'" | |
1274 | "ccboutstandingcount=%d \n" | |
1275 | , acb->host->host_no | |
1276 | , ccb | |
1277 | , atomic_read(&acb->ccboutstandingcount)); | |
1278 | continue; | |
1279 | } | |
1280 | id = ccb->pcmd->device->id; | |
1281 | lun = ccb->pcmd->device->lun; | |
1282 | if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) { | |
1283 | if (acb->devstate[id][lun] == ARECA_RAID_GONE) | |
1284 | acb->devstate[id][lun] = ARECA_RAID_GOOD; | |
1285 | ccb->pcmd->result = DID_OK << 16; | |
1286 | arcmsr_ccb_complete(ccb, 1); | |
1287 | } else { | |
1288 | switch(ccb->arcmsr_cdb.DeviceStatus) { | |
1289 | case ARCMSR_DEV_SELECT_TIMEOUT: { | |
1290 | acb->devstate[id][lun] = ARECA_RAID_GONE; | |
1291 | ccb->pcmd->result = DID_TIME_OUT << 16; | |
1292 | arcmsr_ccb_complete(ccb, 1); | |
1293 | } | |
1294 | break; | |
1295 | case ARCMSR_DEV_ABORTED: | |
1296 | case ARCMSR_DEV_INIT_FAIL: { | |
1297 | acb->devstate[id][lun] = ARECA_RAID_GONE; | |
1298 | ccb->pcmd->result = DID_BAD_TARGET << 16; | |
1299 | arcmsr_ccb_complete(ccb, 1); | |
1300 | } | |
1301 | break; | |
1302 | case ARCMSR_DEV_CHECK_CONDITION: { | |
1303 | acb->devstate[id][lun] = ARECA_RAID_GOOD; | |
1304 | arcmsr_report_sense_info(ccb); | |
1305 | arcmsr_ccb_complete(ccb, 1); | |
1306 | } | |
1307 | break; | |
1308 | default: | |
1309 | printk(KERN_NOTICE | |
1310 | "arcmsr%d: scsi id=%d lun=%d" | |
1311 | " polling and getting command error done" | |
1312 | "but got unknown DeviceStatus = 0x%x \n" | |
1313 | , acb->host->host_no | |
1314 | , id | |
1315 | , lun | |
1316 | , ccb->arcmsr_cdb.DeviceStatus); | |
1317 | acb->devstate[id][lun] = ARECA_RAID_GONE; | |
1318 | ccb->pcmd->result = DID_BAD_TARGET << 16; | |
1319 | arcmsr_ccb_complete(ccb, 1); | |
1320 | break; | |
1321 | } | |
1322 | } | |
1323 | } | |
1324 | } | |
1325 | ||
1326 | static void arcmsr_iop_init(struct AdapterControlBlock *acb) | |
1327 | { | |
1328 | struct MessageUnit __iomem *reg = acb->pmu; | |
1329 | uint32_t intmask_org, mask, outbound_doorbell, firmware_state = 0; | |
1330 | ||
1331 | do { | |
1332 | firmware_state = readl(®->outbound_msgaddr1); | |
1333 | } while (!(firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK)); | |
1334 | intmask_org = readl(®->outbound_intmask) | |
1335 | | ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE; | |
1336 | arcmsr_get_firmware_spec(acb); | |
1337 | ||
1338 | acb->acb_flags |= ACB_F_MSG_START_BGRB; | |
1339 | writel(ARCMSR_INBOUND_MESG0_START_BGRB, ®->inbound_msgaddr0); | |
1340 | if (arcmsr_wait_msgint_ready(acb)) { | |
1341 | printk(KERN_NOTICE "arcmsr%d: " | |
1342 | "wait 'start adapter background rebulid' timeout\n", | |
1343 | acb->host->host_no); | |
1344 | } | |
1345 | ||
1346 | outbound_doorbell = readl(®->outbound_doorbell); | |
1347 | writel(outbound_doorbell, ®->outbound_doorbell); | |
1348 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell); | |
1349 | mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE | |
1350 | | ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE); | |
1351 | writel(intmask_org & mask, ®->outbound_intmask); | |
1352 | acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff; | |
1353 | acb->acb_flags |= ACB_F_IOP_INITED; | |
1354 | } | |
1355 | ||
1356 | static void arcmsr_iop_reset(struct AdapterControlBlock *acb) | |
1357 | { | |
1358 | struct MessageUnit __iomem *reg = acb->pmu; | |
1359 | struct CommandControlBlock *ccb; | |
1360 | uint32_t intmask_org; | |
1361 | int i = 0; | |
1362 | ||
1363 | if (atomic_read(&acb->ccboutstandingcount) != 0) { | |
1364 | /* talk to iop 331 outstanding command aborted */ | |
1365 | arcmsr_abort_allcmd(acb); | |
1366 | /* wait for 3 sec for all command aborted*/ | |
1367 | msleep_interruptible(3000); | |
1368 | /* disable all outbound interrupt */ | |
1369 | intmask_org = arcmsr_disable_outbound_ints(acb); | |
1370 | /* clear all outbound posted Q */ | |
1371 | for (i = 0; i < ARCMSR_MAX_OUTSTANDING_CMD; i++) | |
1372 | readl(®->outbound_queueport); | |
1373 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { | |
1374 | ccb = acb->pccb_pool[i]; | |
1375 | if ((ccb->startdone == ARCMSR_CCB_START) || | |
1376 | (ccb->startdone == ARCMSR_CCB_ABORTED)) { | |
1377 | ccb->startdone = ARCMSR_CCB_ABORTED; | |
1378 | ccb->pcmd->result = DID_ABORT << 16; | |
1379 | arcmsr_ccb_complete(ccb, 1); | |
1380 | } | |
1381 | } | |
1382 | /* enable all outbound interrupt */ | |
1383 | arcmsr_enable_outbound_ints(acb, intmask_org); | |
1384 | } | |
1385 | atomic_set(&acb->ccboutstandingcount, 0); | |
1386 | } | |
1387 | ||
1388 | static int arcmsr_bus_reset(struct scsi_cmnd *cmd) | |
1389 | { | |
1390 | struct AdapterControlBlock *acb = | |
1391 | (struct AdapterControlBlock *)cmd->device->host->hostdata; | |
1392 | int i; | |
1393 | ||
1394 | acb->num_resets++; | |
1395 | acb->acb_flags |= ACB_F_BUS_RESET; | |
1396 | for (i = 0; i < 400; i++) { | |
1397 | if (!atomic_read(&acb->ccboutstandingcount)) | |
1398 | break; | |
1399 | arcmsr_interrupt(acb); | |
1400 | msleep(25); | |
1401 | } | |
1402 | arcmsr_iop_reset(acb); | |
1403 | acb->acb_flags &= ~ACB_F_BUS_RESET; | |
1404 | return SUCCESS; | |
1405 | } | |
1406 | ||
1407 | static void arcmsr_abort_one_cmd(struct AdapterControlBlock *acb, | |
1408 | struct CommandControlBlock *ccb) | |
1409 | { | |
1410 | u32 intmask; | |
1411 | ||
1412 | ccb->startdone = ARCMSR_CCB_ABORTED; | |
1413 | ||
1414 | /* | |
1415 | ** Wait for 3 sec for all command done. | |
1416 | */ | |
1417 | msleep_interruptible(3000); | |
1418 | ||
1419 | intmask = arcmsr_disable_outbound_ints(acb); | |
1420 | arcmsr_polling_ccbdone(acb, ccb); | |
1421 | arcmsr_enable_outbound_ints(acb, intmask); | |
1422 | } | |
1423 | ||
1424 | static int arcmsr_abort(struct scsi_cmnd *cmd) | |
1425 | { | |
1426 | struct AdapterControlBlock *acb = | |
1427 | (struct AdapterControlBlock *)cmd->device->host->hostdata; | |
1428 | int i = 0; | |
1429 | ||
1430 | printk(KERN_NOTICE | |
1431 | "arcmsr%d: abort device command of scsi id=%d lun=%d \n", | |
1432 | acb->host->host_no, cmd->device->id, cmd->device->lun); | |
1433 | acb->num_aborts++; | |
1434 | ||
1435 | /* | |
1436 | ************************************************ | |
1437 | ** the all interrupt service routine is locked | |
1438 | ** we need to handle it as soon as possible and exit | |
1439 | ************************************************ | |
1440 | */ | |
1441 | if (!atomic_read(&acb->ccboutstandingcount)) | |
1442 | return SUCCESS; | |
1443 | ||
1444 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { | |
1445 | struct CommandControlBlock *ccb = acb->pccb_pool[i]; | |
1446 | if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) { | |
1447 | arcmsr_abort_one_cmd(acb, ccb); | |
1448 | break; | |
1449 | } | |
1450 | } | |
1451 | ||
1452 | return SUCCESS; | |
1453 | } | |
1454 | ||
1455 | static const char *arcmsr_info(struct Scsi_Host *host) | |
1456 | { | |
1457 | struct AdapterControlBlock *acb = | |
1458 | (struct AdapterControlBlock *) host->hostdata; | |
1459 | static char buf[256]; | |
1460 | char *type; | |
1461 | int raid6 = 1; | |
1462 | ||
1463 | switch (acb->pdev->device) { | |
1464 | case PCI_DEVICE_ID_ARECA_1110: | |
1465 | case PCI_DEVICE_ID_ARECA_1210: | |
1466 | raid6 = 0; | |
1467 | /*FALLTHRU*/ | |
1468 | case PCI_DEVICE_ID_ARECA_1120: | |
1469 | case PCI_DEVICE_ID_ARECA_1130: | |
1470 | case PCI_DEVICE_ID_ARECA_1160: | |
1471 | case PCI_DEVICE_ID_ARECA_1170: | |
1472 | case PCI_DEVICE_ID_ARECA_1220: | |
1473 | case PCI_DEVICE_ID_ARECA_1230: | |
1474 | case PCI_DEVICE_ID_ARECA_1260: | |
1475 | case PCI_DEVICE_ID_ARECA_1270: | |
1476 | case PCI_DEVICE_ID_ARECA_1280: | |
1477 | type = "SATA"; | |
1478 | break; | |
1479 | case PCI_DEVICE_ID_ARECA_1380: | |
1480 | case PCI_DEVICE_ID_ARECA_1381: | |
1481 | case PCI_DEVICE_ID_ARECA_1680: | |
1482 | case PCI_DEVICE_ID_ARECA_1681: | |
1483 | type = "SAS"; | |
1484 | break; | |
1485 | default: | |
1486 | type = "X-TYPE"; | |
1487 | break; | |
1488 | } | |
1489 | sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s", | |
1490 | type, raid6 ? "( RAID6 capable)" : "", | |
1491 | ARCMSR_DRIVER_VERSION); | |
1492 | return buf; | |
1493 | } | |
1494 | ||
1495 |