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interconnect: qcom: Fix Kconfig indentation
[linux/fpc-iii.git] / drivers / scsi / arcmsr / arcmsr_hba.c
blobdb687ef8a99ec5590e86d2248cbd87a823a59098
1 /*
2 *******************************************************************************
3 ** O.S : Linux
4 ** FILE NAME : arcmsr_hba.c
5 ** BY : Nick Cheng, C.L. Huang
6 ** Description: SCSI RAID Device Driver for Areca RAID Controller
7 *******************************************************************************
8 ** Copyright (C) 2002 - 2014, Areca Technology Corporation All rights reserved
9 **
10 ** Web site: www.areca.com.tw
11 ** E-mail: support@areca.com.tw
12 **
13 ** This program is free software; you can redistribute it and/or modify
14 ** it under the terms of the GNU General Public License version 2 as
15 ** published by the Free Software Foundation.
16 ** This program is distributed in the hope that it will be useful,
17 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ** GNU General Public License for more details.
20 *******************************************************************************
21 ** Redistribution and use in source and binary forms, with or without
22 ** modification, are permitted provided that the following conditions
23 ** are met:
24 ** 1. Redistributions of source code must retain the above copyright
25 ** notice, this list of conditions and the following disclaimer.
26 ** 2. Redistributions in binary form must reproduce the above copyright
27 ** notice, this list of conditions and the following disclaimer in the
28 ** documentation and/or other materials provided with the distribution.
29 ** 3. The name of the author may not be used to endorse or promote products
30 ** derived from this software without specific prior written permission.
31 **
32 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
33 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
34 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
35 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
36 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT
37 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
38 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
39 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
40 ** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
41 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 *******************************************************************************
43 ** For history of changes, see Documentation/scsi/ChangeLog.arcmsr
44 ** Firmware Specification, see Documentation/scsi/arcmsr_spec.txt
45 *******************************************************************************
46 */
47 #include <linux/module.h>
48 #include <linux/reboot.h>
49 #include <linux/spinlock.h>
50 #include <linux/pci_ids.h>
51 #include <linux/interrupt.h>
52 #include <linux/moduleparam.h>
53 #include <linux/errno.h>
54 #include <linux/types.h>
55 #include <linux/delay.h>
56 #include <linux/dma-mapping.h>
57 #include <linux/timer.h>
58 #include <linux/slab.h>
59 #include <linux/pci.h>
60 #include <linux/aer.h>
61 #include <linux/circ_buf.h>
62 #include <asm/dma.h>
63 #include <asm/io.h>
64 #include <linux/uaccess.h>
65 #include <scsi/scsi_host.h>
66 #include <scsi/scsi.h>
67 #include <scsi/scsi_cmnd.h>
68 #include <scsi/scsi_tcq.h>
69 #include <scsi/scsi_device.h>
70 #include <scsi/scsi_transport.h>
71 #include <scsi/scsicam.h>
72 #include "arcmsr.h"
73 MODULE_AUTHOR("Nick Cheng, C.L. Huang <support@areca.com.tw>");
74 MODULE_DESCRIPTION("Areca ARC11xx/12xx/16xx/188x SAS/SATA RAID Controller Driver");
75 MODULE_LICENSE("Dual BSD/GPL");
76 MODULE_VERSION(ARCMSR_DRIVER_VERSION);
77
78 static int msix_enable = 1;
79 module_param(msix_enable, int, S_IRUGO);
80 MODULE_PARM_DESC(msix_enable, "Enable MSI-X interrupt(0 ~ 1), msix_enable=1(enable), =0(disable)");
81
82 static int msi_enable = 1;
83 module_param(msi_enable, int, S_IRUGO);
84 MODULE_PARM_DESC(msi_enable, "Enable MSI interrupt(0 ~ 1), msi_enable=1(enable), =0(disable)");
85
86 static int host_can_queue = ARCMSR_DEFAULT_OUTSTANDING_CMD;
87 module_param(host_can_queue, int, S_IRUGO);
88 MODULE_PARM_DESC(host_can_queue, " adapter queue depth(32 ~ 1024), default is 128");
89
90 static int cmd_per_lun = ARCMSR_DEFAULT_CMD_PERLUN;
91 module_param(cmd_per_lun, int, S_IRUGO);
92 MODULE_PARM_DESC(cmd_per_lun, " device queue depth(1 ~ 128), default is 32");
93
94 static int dma_mask_64 = 0;
95 module_param(dma_mask_64, int, S_IRUGO);
96 MODULE_PARM_DESC(dma_mask_64, " set DMA mask to 64 bits(0 ~ 1), dma_mask_64=1(64 bits), =0(32 bits)");
97
98 static int set_date_time = 0;
99 module_param(set_date_time, int, S_IRUGO);
100 MODULE_PARM_DESC(set_date_time, " send date, time to iop(0 ~ 1), set_date_time=1(enable), default(=0) is disable");
101
102 #define ARCMSR_SLEEPTIME 10
103 #define ARCMSR_RETRYCOUNT 12
104
105 static wait_queue_head_t wait_q;
106 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
107 struct scsi_cmnd *cmd);
108 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb);
109 static int arcmsr_abort(struct scsi_cmnd *);
110 static int arcmsr_bus_reset(struct scsi_cmnd *);
111 static int arcmsr_bios_param(struct scsi_device *sdev,
112 struct block_device *bdev, sector_t capacity, int *info);
113 static int arcmsr_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd);
114 static int arcmsr_probe(struct pci_dev *pdev,
115 const struct pci_device_id *id);
116 static int arcmsr_suspend(struct pci_dev *pdev, pm_message_t state);
117 static int arcmsr_resume(struct pci_dev *pdev);
118 static void arcmsr_remove(struct pci_dev *pdev);
119 static void arcmsr_shutdown(struct pci_dev *pdev);
120 static void arcmsr_iop_init(struct AdapterControlBlock *acb);
121 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb);
122 static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb);
123 static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
124 u32 intmask_org);
125 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
126 static void arcmsr_hbaA_flush_cache(struct AdapterControlBlock *acb);
127 static void arcmsr_hbaB_flush_cache(struct AdapterControlBlock *acb);
128 static void arcmsr_request_device_map(struct timer_list *t);
129 static void arcmsr_message_isr_bh_fn(struct work_struct *work);
130 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb);
131 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
132 static void arcmsr_hbaC_message_isr(struct AdapterControlBlock *pACB);
133 static void arcmsr_hbaD_message_isr(struct AdapterControlBlock *acb);
134 static void arcmsr_hbaE_message_isr(struct AdapterControlBlock *acb);
135 static void arcmsr_hbaE_postqueue_isr(struct AdapterControlBlock *acb);
136 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb);
137 static const char *arcmsr_info(struct Scsi_Host *);
138 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
139 static void arcmsr_free_irq(struct pci_dev *, struct AdapterControlBlock *);
140 static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb);
141 static void arcmsr_set_iop_datetime(struct timer_list *);
142 static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth)
143 {
144 if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
145 queue_depth = ARCMSR_MAX_CMD_PERLUN;
146 return scsi_change_queue_depth(sdev, queue_depth);
147 }
148
149 static struct scsi_host_template arcmsr_scsi_host_template = {
150 .module = THIS_MODULE,
151 .name = "Areca SAS/SATA RAID driver",
152 .info = arcmsr_info,
153 .queuecommand = arcmsr_queue_command,
154 .eh_abort_handler = arcmsr_abort,
155 .eh_bus_reset_handler = arcmsr_bus_reset,
156 .bios_param = arcmsr_bios_param,
157 .change_queue_depth = arcmsr_adjust_disk_queue_depth,
158 .can_queue = ARCMSR_DEFAULT_OUTSTANDING_CMD,
159 .this_id = ARCMSR_SCSI_INITIATOR_ID,
160 .sg_tablesize = ARCMSR_DEFAULT_SG_ENTRIES,
161 .max_sectors = ARCMSR_MAX_XFER_SECTORS_C,
162 .cmd_per_lun = ARCMSR_DEFAULT_CMD_PERLUN,
163 .shost_attrs = arcmsr_host_attrs,
164 .no_write_same = 1,
165 };
166
167 static struct pci_device_id arcmsr_device_id_table[] = {
168 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110),
169 .driver_data = ACB_ADAPTER_TYPE_A},
170 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120),
171 .driver_data = ACB_ADAPTER_TYPE_A},
172 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130),
173 .driver_data = ACB_ADAPTER_TYPE_A},
174 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160),
175 .driver_data = ACB_ADAPTER_TYPE_A},
176 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170),
177 .driver_data = ACB_ADAPTER_TYPE_A},
178 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1200),
179 .driver_data = ACB_ADAPTER_TYPE_B},
180 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1201),
181 .driver_data = ACB_ADAPTER_TYPE_B},
182 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1202),
183 .driver_data = ACB_ADAPTER_TYPE_B},
184 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1203),
185 .driver_data = ACB_ADAPTER_TYPE_B},
186 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210),
187 .driver_data = ACB_ADAPTER_TYPE_A},
188 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1214),
189 .driver_data = ACB_ADAPTER_TYPE_D},
190 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220),
191 .driver_data = ACB_ADAPTER_TYPE_A},
192 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230),
193 .driver_data = ACB_ADAPTER_TYPE_A},
194 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260),
195 .driver_data = ACB_ADAPTER_TYPE_A},
196 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270),
197 .driver_data = ACB_ADAPTER_TYPE_A},
198 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280),
199 .driver_data = ACB_ADAPTER_TYPE_A},
200 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380),
201 .driver_data = ACB_ADAPTER_TYPE_A},
202 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381),
203 .driver_data = ACB_ADAPTER_TYPE_A},
204 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680),
205 .driver_data = ACB_ADAPTER_TYPE_A},
206 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681),
207 .driver_data = ACB_ADAPTER_TYPE_A},
208 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1880),
209 .driver_data = ACB_ADAPTER_TYPE_C},
210 {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1884),
211 .driver_data = ACB_ADAPTER_TYPE_E},
212 {0, 0}, /* Terminating entry */
213 };
214 MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
215
216 static struct pci_driver arcmsr_pci_driver = {
217 .name = "arcmsr",
218 .id_table = arcmsr_device_id_table,
219 .probe = arcmsr_probe,
220 .remove = arcmsr_remove,
221 .suspend = arcmsr_suspend,
222 .resume = arcmsr_resume,
223 .shutdown = arcmsr_shutdown,
224 };
225 /*
226 ****************************************************************************
227 ****************************************************************************
228 */
229
230 static void arcmsr_free_io_queue(struct AdapterControlBlock *acb)
231 {
232 switch (acb->adapter_type) {
233 case ACB_ADAPTER_TYPE_B:
234 case ACB_ADAPTER_TYPE_D:
235 case ACB_ADAPTER_TYPE_E: {
236 dma_free_coherent(&acb->pdev->dev, acb->ioqueue_size,
237 acb->dma_coherent2, acb->dma_coherent_handle2);
238 break;
239 }
240 }
241 }
242
243 static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
244 {
245 struct pci_dev *pdev = acb->pdev;
246 switch (acb->adapter_type){
247 case ACB_ADAPTER_TYPE_A:{
248 acb->pmuA = ioremap(pci_resource_start(pdev,0), pci_resource_len(pdev,0));
249 if (!acb->pmuA) {
250 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
251 return false;
252 }
253 break;
254 }
255 case ACB_ADAPTER_TYPE_B:{
256 void __iomem *mem_base0, *mem_base1;
257 mem_base0 = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
258 if (!mem_base0) {
259 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
260 return false;
261 }
262 mem_base1 = ioremap(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
263 if (!mem_base1) {
264 iounmap(mem_base0);
265 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
266 return false;
267 }
268 acb->mem_base0 = mem_base0;
269 acb->mem_base1 = mem_base1;
270 break;
271 }
272 case ACB_ADAPTER_TYPE_C:{
273 acb->pmuC = ioremap_nocache(pci_resource_start(pdev, 1), pci_resource_len(pdev, 1));
274 if (!acb->pmuC) {
275 printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", acb->host->host_no);
276 return false;
277 }
278 if (readl(&acb->pmuC->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
279 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &acb->pmuC->outbound_doorbell_clear);/*clear interrupt*/
280 return true;
281 }
282 break;
283 }
284 case ACB_ADAPTER_TYPE_D: {
285 void __iomem *mem_base0;
286 unsigned long addr, range, flags;
287
288 addr = (unsigned long)pci_resource_start(pdev, 0);
289 range = pci_resource_len(pdev, 0);
290 flags = pci_resource_flags(pdev, 0);
291 mem_base0 = ioremap(addr, range);
292 if (!mem_base0) {
293 pr_notice("arcmsr%d: memory mapping region fail\n",
294 acb->host->host_no);
295 return false;
296 }
297 acb->mem_base0 = mem_base0;
298 break;
299 }
300 case ACB_ADAPTER_TYPE_E: {
301 acb->pmuE = ioremap(pci_resource_start(pdev, 1),
302 pci_resource_len(pdev, 1));
303 if (!acb->pmuE) {
304 pr_notice("arcmsr%d: memory mapping region fail \n",
305 acb->host->host_no);
306 return false;
307 }
308 writel(0, &acb->pmuE->host_int_status); /*clear interrupt*/
309 writel(ARCMSR_HBEMU_DOORBELL_SYNC, &acb->pmuE->iobound_doorbell); /* synchronize doorbell to 0 */
310 acb->in_doorbell = 0;
311 acb->out_doorbell = 0;
312 break;
313 }
314 }
315 return true;
316 }
317
318 static void arcmsr_unmap_pciregion(struct AdapterControlBlock *acb)
319 {
320 switch (acb->adapter_type) {
321 case ACB_ADAPTER_TYPE_A:{
322 iounmap(acb->pmuA);
323 }
324 break;
325 case ACB_ADAPTER_TYPE_B:{
326 iounmap(acb->mem_base0);
327 iounmap(acb->mem_base1);
328 }
329
330 break;
331 case ACB_ADAPTER_TYPE_C:{
332 iounmap(acb->pmuC);
333 }
334 break;
335 case ACB_ADAPTER_TYPE_D:
336 iounmap(acb->mem_base0);
337 break;
338 case ACB_ADAPTER_TYPE_E:
339 iounmap(acb->pmuE);
340 break;
341 }
342 }
343
344 static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
345 {
346 irqreturn_t handle_state;
347 struct AdapterControlBlock *acb = dev_id;
348
349 handle_state = arcmsr_interrupt(acb);
350 return handle_state;
351 }
352
353 static int arcmsr_bios_param(struct scsi_device *sdev,
354 struct block_device *bdev, sector_t capacity, int *geom)
355 {
356 int ret, heads, sectors, cylinders, total_capacity;
357 unsigned char *buffer;/* return copy of block device's partition table */
358
359 buffer = scsi_bios_ptable(bdev);
360 if (buffer) {
361 ret = scsi_partsize(buffer, capacity, &geom[2], &geom[0], &geom[1]);
362 kfree(buffer);
363 if (ret != -1)
364 return ret;
365 }
366 total_capacity = capacity;
367 heads = 64;
368 sectors = 32;
369 cylinders = total_capacity / (heads * sectors);
370 if (cylinders > 1024) {
371 heads = 255;
372 sectors = 63;
373 cylinders = total_capacity / (heads * sectors);
374 }
375 geom[0] = heads;
376 geom[1] = sectors;
377 geom[2] = cylinders;
378 return 0;
379 }
380
381 static uint8_t arcmsr_hbaA_wait_msgint_ready(struct AdapterControlBlock *acb)
382 {
383 struct MessageUnit_A __iomem *reg = acb->pmuA;
384 int i;
385
386 for (i = 0; i < 2000; i++) {
387 if (readl(&reg->outbound_intstatus) &
388 ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
389 writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
390 &reg->outbound_intstatus);
391 return true;
392 }
393 msleep(10);
394 } /* max 20 seconds */
395
396 return false;
397 }
398
399 static uint8_t arcmsr_hbaB_wait_msgint_ready(struct AdapterControlBlock *acb)
400 {
401 struct MessageUnit_B *reg = acb->pmuB;
402 int i;
403
404 for (i = 0; i < 2000; i++) {
405 if (readl(reg->iop2drv_doorbell)
406 & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
407 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN,
408 reg->iop2drv_doorbell);
409 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
410 reg->drv2iop_doorbell);
411 return true;
412 }
413 msleep(10);
414 } /* max 20 seconds */
415
416 return false;
417 }
418
419 static uint8_t arcmsr_hbaC_wait_msgint_ready(struct AdapterControlBlock *pACB)
420 {
421 struct MessageUnit_C __iomem *phbcmu = pACB->pmuC;
422 int i;
423
424 for (i = 0; i < 2000; i++) {
425 if (readl(&phbcmu->outbound_doorbell)
426 & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
427 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR,
428 &phbcmu->outbound_doorbell_clear); /*clear interrupt*/
429 return true;
430 }
431 msleep(10);
432 } /* max 20 seconds */
433
434 return false;
435 }
436
437 static bool arcmsr_hbaD_wait_msgint_ready(struct AdapterControlBlock *pACB)
438 {
439 struct MessageUnit_D *reg = pACB->pmuD;
440 int i;
441
442 for (i = 0; i < 2000; i++) {
443 if (readl(reg->outbound_doorbell)
444 & ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE) {
445 writel(ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE,
446 reg->outbound_doorbell);
447 return true;
448 }
449 msleep(10);
450 } /* max 20 seconds */
451 return false;
452 }
453
454 static bool arcmsr_hbaE_wait_msgint_ready(struct AdapterControlBlock *pACB)
455 {
456 int i;
457 uint32_t read_doorbell;
458 struct MessageUnit_E __iomem *phbcmu = pACB->pmuE;
459
460 for (i = 0; i < 2000; i++) {
461 read_doorbell = readl(&phbcmu->iobound_doorbell);
462 if ((read_doorbell ^ pACB->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
463 writel(0, &phbcmu->host_int_status); /*clear interrupt*/
464 pACB->in_doorbell = read_doorbell;
465 return true;
466 }
467 msleep(10);
468 } /* max 20 seconds */
469 return false;
470 }
471
472 static void arcmsr_hbaA_flush_cache(struct AdapterControlBlock *acb)
473 {
474 struct MessageUnit_A __iomem *reg = acb->pmuA;
475 int retry_count = 30;
476 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, &reg->inbound_msgaddr0);
477 do {
478 if (arcmsr_hbaA_wait_msgint_ready(acb))
479 break;
480 else {
481 retry_count--;
482 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
483 timeout, retry count down = %d \n", acb->host->host_no, retry_count);
484 }
485 } while (retry_count != 0);
486 }
487
488 static void arcmsr_hbaB_flush_cache(struct AdapterControlBlock *acb)
489 {
490 struct MessageUnit_B *reg = acb->pmuB;
491 int retry_count = 30;
492 writel(ARCMSR_MESSAGE_FLUSH_CACHE, reg->drv2iop_doorbell);
493 do {
494 if (arcmsr_hbaB_wait_msgint_ready(acb))
495 break;
496 else {
497 retry_count--;
498 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
499 timeout,retry count down = %d \n", acb->host->host_no, retry_count);
500 }
501 } while (retry_count != 0);
502 }
503
504 static void arcmsr_hbaC_flush_cache(struct AdapterControlBlock *pACB)
505 {
506 struct MessageUnit_C __iomem *reg = pACB->pmuC;
507 int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
508 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, &reg->inbound_msgaddr0);
509 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
510 do {
511 if (arcmsr_hbaC_wait_msgint_ready(pACB)) {
512 break;
513 } else {
514 retry_count--;
515 printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \
516 timeout,retry count down = %d \n", pACB->host->host_no, retry_count);
517 }
518 } while (retry_count != 0);
519 return;
520 }
521
522 static void arcmsr_hbaD_flush_cache(struct AdapterControlBlock *pACB)
523 {
524 int retry_count = 15;
525 struct MessageUnit_D *reg = pACB->pmuD;
526
527 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, reg->inbound_msgaddr0);
528 do {
529 if (arcmsr_hbaD_wait_msgint_ready(pACB))
530 break;
531
532 retry_count--;
533 pr_notice("arcmsr%d: wait 'flush adapter "
534 "cache' timeout, retry count down = %d\n",
535 pACB->host->host_no, retry_count);
536 } while (retry_count != 0);
537 }
538
539 static void arcmsr_hbaE_flush_cache(struct AdapterControlBlock *pACB)
540 {
541 int retry_count = 30;
542 struct MessageUnit_E __iomem *reg = pACB->pmuE;
543
544 writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, &reg->inbound_msgaddr0);
545 pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
546 writel(pACB->out_doorbell, &reg->iobound_doorbell);
547 do {
548 if (arcmsr_hbaE_wait_msgint_ready(pACB))
549 break;
550 retry_count--;
551 pr_notice("arcmsr%d: wait 'flush adapter "
552 "cache' timeout, retry count down = %d\n",
553 pACB->host->host_no, retry_count);
554 } while (retry_count != 0);
555 }
556
557 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
558 {
559 switch (acb->adapter_type) {
560
561 case ACB_ADAPTER_TYPE_A: {
562 arcmsr_hbaA_flush_cache(acb);
563 }
564 break;
565
566 case ACB_ADAPTER_TYPE_B: {
567 arcmsr_hbaB_flush_cache(acb);
568 }
569 break;
570 case ACB_ADAPTER_TYPE_C: {
571 arcmsr_hbaC_flush_cache(acb);
572 }
573 break;
574 case ACB_ADAPTER_TYPE_D:
575 arcmsr_hbaD_flush_cache(acb);
576 break;
577 case ACB_ADAPTER_TYPE_E:
578 arcmsr_hbaE_flush_cache(acb);
579 break;
580 }
581 }
582
583 static void arcmsr_hbaB_assign_regAddr(struct AdapterControlBlock *acb)
584 {
585 struct MessageUnit_B *reg = acb->pmuB;
586
587 if (acb->pdev->device == PCI_DEVICE_ID_ARECA_1203) {
588 reg->drv2iop_doorbell = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL_1203);
589 reg->drv2iop_doorbell_mask = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL_MASK_1203);
590 reg->iop2drv_doorbell = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL_1203);
591 reg->iop2drv_doorbell_mask = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL_MASK_1203);
592 } else {
593 reg->drv2iop_doorbell= MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL);
594 reg->drv2iop_doorbell_mask = MEM_BASE0(ARCMSR_DRV2IOP_DOORBELL_MASK);
595 reg->iop2drv_doorbell = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL);
596 reg->iop2drv_doorbell_mask = MEM_BASE0(ARCMSR_IOP2DRV_DOORBELL_MASK);
597 }
598 reg->message_wbuffer = MEM_BASE1(ARCMSR_MESSAGE_WBUFFER);
599 reg->message_rbuffer = MEM_BASE1(ARCMSR_MESSAGE_RBUFFER);
600 reg->message_rwbuffer = MEM_BASE1(ARCMSR_MESSAGE_RWBUFFER);
601 }
602
603 static void arcmsr_hbaD_assign_regAddr(struct AdapterControlBlock *acb)
604 {
605 struct MessageUnit_D *reg = acb->pmuD;
606
607 reg->chip_id = MEM_BASE0(ARCMSR_ARC1214_CHIP_ID);
608 reg->cpu_mem_config = MEM_BASE0(ARCMSR_ARC1214_CPU_MEMORY_CONFIGURATION);
609 reg->i2o_host_interrupt_mask = MEM_BASE0(ARCMSR_ARC1214_I2_HOST_INTERRUPT_MASK);
610 reg->sample_at_reset = MEM_BASE0(ARCMSR_ARC1214_SAMPLE_RESET);
611 reg->reset_request = MEM_BASE0(ARCMSR_ARC1214_RESET_REQUEST);
612 reg->host_int_status = MEM_BASE0(ARCMSR_ARC1214_MAIN_INTERRUPT_STATUS);
613 reg->pcief0_int_enable = MEM_BASE0(ARCMSR_ARC1214_PCIE_F0_INTERRUPT_ENABLE);
614 reg->inbound_msgaddr0 = MEM_BASE0(ARCMSR_ARC1214_INBOUND_MESSAGE0);
615 reg->inbound_msgaddr1 = MEM_BASE0(ARCMSR_ARC1214_INBOUND_MESSAGE1);
616 reg->outbound_msgaddr0 = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_MESSAGE0);
617 reg->outbound_msgaddr1 = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_MESSAGE1);
618 reg->inbound_doorbell = MEM_BASE0(ARCMSR_ARC1214_INBOUND_DOORBELL);
619 reg->outbound_doorbell = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_DOORBELL);
620 reg->outbound_doorbell_enable = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_DOORBELL_ENABLE);
621 reg->inboundlist_base_low = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_BASE_LOW);
622 reg->inboundlist_base_high = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_BASE_HIGH);
623 reg->inboundlist_write_pointer = MEM_BASE0(ARCMSR_ARC1214_INBOUND_LIST_WRITE_POINTER);
624 reg->outboundlist_base_low = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_BASE_LOW);
625 reg->outboundlist_base_high = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_BASE_HIGH);
626 reg->outboundlist_copy_pointer = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_COPY_POINTER);
627 reg->outboundlist_read_pointer = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_LIST_READ_POINTER);
628 reg->outboundlist_interrupt_cause = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_INTERRUPT_CAUSE);
629 reg->outboundlist_interrupt_enable = MEM_BASE0(ARCMSR_ARC1214_OUTBOUND_INTERRUPT_ENABLE);
630 reg->message_wbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_WBUFFER);
631 reg->message_rbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RBUFFER);
632 reg->msgcode_rwbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RWBUFFER);
633 }
634
635 static bool arcmsr_alloc_io_queue(struct AdapterControlBlock *acb)
636 {
637 bool rtn = true;
638 void *dma_coherent;
639 dma_addr_t dma_coherent_handle;
640 struct pci_dev *pdev = acb->pdev;
641
642 switch (acb->adapter_type) {
643 case ACB_ADAPTER_TYPE_B: {
644 acb->ioqueue_size = roundup(sizeof(struct MessageUnit_B), 32);
645 dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
646 &dma_coherent_handle, GFP_KERNEL);
647 if (!dma_coherent) {
648 pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
649 return false;
650 }
651 acb->dma_coherent_handle2 = dma_coherent_handle;
652 acb->dma_coherent2 = dma_coherent;
653 acb->pmuB = (struct MessageUnit_B *)dma_coherent;
654 arcmsr_hbaB_assign_regAddr(acb);
655 }
656 break;
657 case ACB_ADAPTER_TYPE_D: {
658 acb->ioqueue_size = roundup(sizeof(struct MessageUnit_D), 32);
659 dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
660 &dma_coherent_handle, GFP_KERNEL);
661 if (!dma_coherent) {
662 pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
663 return false;
664 }
665 acb->dma_coherent_handle2 = dma_coherent_handle;
666 acb->dma_coherent2 = dma_coherent;
667 acb->pmuD = (struct MessageUnit_D *)dma_coherent;
668 arcmsr_hbaD_assign_regAddr(acb);
669 }
670 break;
671 case ACB_ADAPTER_TYPE_E: {
672 uint32_t completeQ_size;
673 completeQ_size = sizeof(struct deliver_completeQ) * ARCMSR_MAX_HBE_DONEQUEUE + 128;
674 acb->ioqueue_size = roundup(completeQ_size, 32);
675 dma_coherent = dma_alloc_coherent(&pdev->dev, acb->ioqueue_size,
676 &dma_coherent_handle, GFP_KERNEL);
677 if (!dma_coherent){
678 pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
679 return false;
680 }
681 acb->dma_coherent_handle2 = dma_coherent_handle;
682 acb->dma_coherent2 = dma_coherent;
683 acb->pCompletionQ = dma_coherent;
684 acb->completionQ_entry = acb->ioqueue_size / sizeof(struct deliver_completeQ);
685 acb->doneq_index = 0;
686 }
687 break;
688 default:
689 break;
690 }
691 return rtn;
692 }
693
694 static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
695 {
696 struct pci_dev *pdev = acb->pdev;
697 void *dma_coherent;
698 dma_addr_t dma_coherent_handle;
699 struct CommandControlBlock *ccb_tmp;
700 int i = 0, j = 0;
701 unsigned long cdb_phyaddr, next_ccb_phy;
702 unsigned long roundup_ccbsize;
703 unsigned long max_xfer_len;
704 unsigned long max_sg_entrys;
705 uint32_t firm_config_version, curr_phy_upper32;
706
707 for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
708 for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
709 acb->devstate[i][j] = ARECA_RAID_GONE;
710
711 max_xfer_len = ARCMSR_MAX_XFER_LEN;
712 max_sg_entrys = ARCMSR_DEFAULT_SG_ENTRIES;
713 firm_config_version = acb->firm_cfg_version;
714 if((firm_config_version & 0xFF) >= 3){
715 max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH << ((firm_config_version >> 8) & 0xFF)) * 1024;/* max 4M byte */
716 max_sg_entrys = (max_xfer_len/4096);
717 }
718 acb->host->max_sectors = max_xfer_len/512;
719 acb->host->sg_tablesize = max_sg_entrys;
720 roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
721 acb->uncache_size = roundup_ccbsize * acb->maxFreeCCB;
722 acb->uncache_size += acb->ioqueue_size;
723 dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
724 if(!dma_coherent){
725 printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error\n", acb->host->host_no);
726 return -ENOMEM;
727 }
728 acb->dma_coherent = dma_coherent;
729 acb->dma_coherent_handle = dma_coherent_handle;
730 memset(dma_coherent, 0, acb->uncache_size);
731 acb->ccbsize = roundup_ccbsize;
732 ccb_tmp = dma_coherent;
733 curr_phy_upper32 = upper_32_bits(dma_coherent_handle);
734 acb->vir2phy_offset = (unsigned long)dma_coherent - (unsigned long)dma_coherent_handle;
735 for(i = 0; i < acb->maxFreeCCB; i++){
736 cdb_phyaddr = (unsigned long)dma_coherent_handle + offsetof(struct CommandControlBlock, arcmsr_cdb);
737 switch (acb->adapter_type) {
738 case ACB_ADAPTER_TYPE_A:
739 case ACB_ADAPTER_TYPE_B:
740 ccb_tmp->cdb_phyaddr = cdb_phyaddr >> 5;
741 break;
742 case ACB_ADAPTER_TYPE_C:
743 case ACB_ADAPTER_TYPE_D:
744 case ACB_ADAPTER_TYPE_E:
745 ccb_tmp->cdb_phyaddr = cdb_phyaddr;
746 break;
747 }
748 acb->pccb_pool[i] = ccb_tmp;
749 ccb_tmp->acb = acb;
750 ccb_tmp->smid = (u32)i << 16;
751 INIT_LIST_HEAD(&ccb_tmp->list);
752 next_ccb_phy = dma_coherent_handle + roundup_ccbsize;
753 if (upper_32_bits(next_ccb_phy) != curr_phy_upper32) {
754 acb->maxFreeCCB = i;
755 acb->host->can_queue = i;
756 break;
757 }
758 else
759 list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
760 ccb_tmp = (struct CommandControlBlock *)((unsigned long)ccb_tmp + roundup_ccbsize);
761 dma_coherent_handle = next_ccb_phy;
762 }
763 acb->dma_coherent_handle2 = dma_coherent_handle;
764 acb->dma_coherent2 = ccb_tmp;
765 switch (acb->adapter_type) {
766 case ACB_ADAPTER_TYPE_B:
767 acb->pmuB = (struct MessageUnit_B *)acb->dma_coherent2;
768 arcmsr_hbaB_assign_regAddr(acb);
769 break;
770 case ACB_ADAPTER_TYPE_D:
771 acb->pmuD = (struct MessageUnit_D *)acb->dma_coherent2;
772 arcmsr_hbaD_assign_regAddr(acb);
773 break;
774 case ACB_ADAPTER_TYPE_E:
775 acb->pCompletionQ = acb->dma_coherent2;
776 acb->completionQ_entry = acb->ioqueue_size / sizeof(struct deliver_completeQ);
777 acb->doneq_index = 0;
778 break;
779 }
780 return 0;
781 }
782
783 static void arcmsr_message_isr_bh_fn(struct work_struct *work)
784 {
785 struct AdapterControlBlock *acb = container_of(work,
786 struct AdapterControlBlock, arcmsr_do_message_isr_bh);
787 char *acb_dev_map = (char *)acb->device_map;
788 uint32_t __iomem *signature = NULL;
789 char __iomem *devicemap = NULL;
790 int target, lun;
791 struct scsi_device *psdev;
792 char diff, temp;
793
794 acb->acb_flags &= ~ACB_F_MSG_GET_CONFIG;
795 switch (acb->adapter_type) {
796 case ACB_ADAPTER_TYPE_A: {
797 struct MessageUnit_A __iomem *reg = acb->pmuA;
798
799 signature = (uint32_t __iomem *)(&reg->message_rwbuffer[0]);
800 devicemap = (char __iomem *)(&reg->message_rwbuffer[21]);
801 break;
802 }
803 case ACB_ADAPTER_TYPE_B: {
804 struct MessageUnit_B *reg = acb->pmuB;
805
806 signature = (uint32_t __iomem *)(&reg->message_rwbuffer[0]);
807 devicemap = (char __iomem *)(&reg->message_rwbuffer[21]);
808 break;
809 }
810 case ACB_ADAPTER_TYPE_C: {
811 struct MessageUnit_C __iomem *reg = acb->pmuC;
812
813 signature = (uint32_t __iomem *)(&reg->msgcode_rwbuffer[0]);
814 devicemap = (char __iomem *)(&reg->msgcode_rwbuffer[21]);
815 break;
816 }
817 case ACB_ADAPTER_TYPE_D: {
818 struct MessageUnit_D *reg = acb->pmuD;
819
820 signature = (uint32_t __iomem *)(&reg->msgcode_rwbuffer[0]);
821 devicemap = (char __iomem *)(&reg->msgcode_rwbuffer[21]);
822 break;
823 }
824 case ACB_ADAPTER_TYPE_E: {
825 struct MessageUnit_E __iomem *reg = acb->pmuE;
826
827 signature = (uint32_t __iomem *)(&reg->msgcode_rwbuffer[0]);
828 devicemap = (char __iomem *)(&reg->msgcode_rwbuffer[21]);
829 break;
830 }
831 }
832 atomic_inc(&acb->rq_map_token);
833 if (readl(signature) != ARCMSR_SIGNATURE_GET_CONFIG)
834 return;
835 for (target = 0; target < ARCMSR_MAX_TARGETID - 1;
836 target++) {
837 temp = readb(devicemap);
838 diff = (*acb_dev_map) ^ temp;
839 if (diff != 0) {
840 *acb_dev_map = temp;
841 for (lun = 0; lun < ARCMSR_MAX_TARGETLUN;
842 lun++) {
843 if ((diff & 0x01) == 1 &&
844 (temp & 0x01) == 1) {
845 scsi_add_device(acb->host,
846 0, target, lun);
847 } else if ((diff & 0x01) == 1
848 && (temp & 0x01) == 0) {
849 psdev = scsi_device_lookup(acb->host,
850 0, target, lun);
851 if (psdev != NULL) {
852 scsi_remove_device(psdev);
853 scsi_device_put(psdev);
854 }
855 }
856 temp >>= 1;
857 diff >>= 1;
858 }
859 }
860 devicemap++;
861 acb_dev_map++;
862 }
863 }
864
865 static int
866 arcmsr_request_irq(struct pci_dev *pdev, struct AdapterControlBlock *acb)
867 {
868 unsigned long flags;
869 int nvec, i;
870
871 if (msix_enable == 0)
872 goto msi_int0;
873 nvec = pci_alloc_irq_vectors(pdev, 1, ARCMST_NUM_MSIX_VECTORS,
874 PCI_IRQ_MSIX);
875 if (nvec > 0) {
876 pr_info("arcmsr%d: msi-x enabled\n", acb->host->host_no);
877 flags = 0;
878 } else {
879 msi_int0:
880 if (msi_enable == 1) {
881 nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
882 if (nvec == 1) {
883 dev_info(&pdev->dev, "msi enabled\n");
884 goto msi_int1;
885 }
886 }
887 nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_LEGACY);
888 if (nvec < 1)
889 return FAILED;
890 msi_int1:
891 flags = IRQF_SHARED;
892 }
893
894 acb->vector_count = nvec;
895 for (i = 0; i < nvec; i++) {
896 if (request_irq(pci_irq_vector(pdev, i), arcmsr_do_interrupt,
897 flags, "arcmsr", acb)) {
898 pr_warn("arcmsr%d: request_irq =%d failed!\n",
899 acb->host->host_no, pci_irq_vector(pdev, i));
900 goto out_free_irq;
901 }
902 }
903
904 return SUCCESS;
905 out_free_irq:
906 while (--i >= 0)
907 free_irq(pci_irq_vector(pdev, i), acb);
908 pci_free_irq_vectors(pdev);
909 return FAILED;
910 }
911
912 static void arcmsr_init_get_devmap_timer(struct AdapterControlBlock *pacb)
913 {
914 INIT_WORK(&pacb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
915 atomic_set(&pacb->rq_map_token, 16);
916 atomic_set(&pacb->ante_token_value, 16);
917 pacb->fw_flag = FW_NORMAL;
918 timer_setup(&pacb->eternal_timer, arcmsr_request_device_map, 0);
919 pacb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
920 add_timer(&pacb->eternal_timer);
921 }
922
923 static void arcmsr_init_set_datetime_timer(struct AdapterControlBlock *pacb)
924 {
925 timer_setup(&pacb->refresh_timer, arcmsr_set_iop_datetime, 0);
926 pacb->refresh_timer.expires = jiffies + msecs_to_jiffies(60 * 1000);
927 add_timer(&pacb->refresh_timer);
928 }
929
930 static int arcmsr_set_dma_mask(struct AdapterControlBlock *acb)
931 {
932 struct pci_dev *pcidev = acb->pdev;
933
934 if (IS_DMA64) {
935 if (((acb->adapter_type == ACB_ADAPTER_TYPE_A) && !dma_mask_64) ||
936 dma_set_mask(&pcidev->dev, DMA_BIT_MASK(64)))
937 goto dma32;
938 if (dma_set_coherent_mask(&pcidev->dev, DMA_BIT_MASK(64)) ||
939 dma_set_mask_and_coherent(&pcidev->dev, DMA_BIT_MASK(64))) {
940 printk("arcmsr: set DMA 64 mask failed\n");
941 return -ENXIO;
942 }
943 } else {
944 dma32:
945 if (dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32)) ||
946 dma_set_coherent_mask(&pcidev->dev, DMA_BIT_MASK(32)) ||
947 dma_set_mask_and_coherent(&pcidev->dev, DMA_BIT_MASK(32))) {
948 printk("arcmsr: set DMA 32-bit mask failed\n");
949 return -ENXIO;
950 }
951 }
952 return 0;
953 }
954
955 static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
956 {
957 struct Scsi_Host *host;
958 struct AdapterControlBlock *acb;
959 uint8_t bus,dev_fun;
960 int error;
961 error = pci_enable_device(pdev);
962 if(error){
963 return -ENODEV;
964 }
965 host = scsi_host_alloc(&arcmsr_scsi_host_template, sizeof(struct AdapterControlBlock));
966 if(!host){
967 goto pci_disable_dev;
968 }
969 init_waitqueue_head(&wait_q);
970 bus = pdev->bus->number;
971 dev_fun = pdev->devfn;
972 acb = (struct AdapterControlBlock *) host->hostdata;
973 memset(acb,0,sizeof(struct AdapterControlBlock));
974 acb->pdev = pdev;
975 acb->adapter_type = id->driver_data;
976 if (arcmsr_set_dma_mask(acb))
977 goto scsi_host_release;
978 acb->host = host;
979 host->max_lun = ARCMSR_MAX_TARGETLUN;
980 host->max_id = ARCMSR_MAX_TARGETID; /*16:8*/
981 host->max_cmd_len = 16; /*this is issue of 64bit LBA ,over 2T byte*/
982 if ((host_can_queue < ARCMSR_MIN_OUTSTANDING_CMD) || (host_can_queue > ARCMSR_MAX_OUTSTANDING_CMD))
983 host_can_queue = ARCMSR_DEFAULT_OUTSTANDING_CMD;
984 host->can_queue = host_can_queue; /* max simultaneous cmds */
985 if ((cmd_per_lun < ARCMSR_MIN_CMD_PERLUN) || (cmd_per_lun > ARCMSR_MAX_CMD_PERLUN))
986 cmd_per_lun = ARCMSR_DEFAULT_CMD_PERLUN;
987 host->cmd_per_lun = cmd_per_lun;
988 host->this_id = ARCMSR_SCSI_INITIATOR_ID;
989 host->unique_id = (bus << 8) | dev_fun;
990 pci_set_drvdata(pdev, host);
991 pci_set_master(pdev);
992 error = pci_request_regions(pdev, "arcmsr");
993 if(error){
994 goto scsi_host_release;
995 }
996 spin_lock_init(&acb->eh_lock);
997 spin_lock_init(&acb->ccblist_lock);
998 spin_lock_init(&acb->postq_lock);
999 spin_lock_init(&acb->doneq_lock);
1000 spin_lock_init(&acb->rqbuffer_lock);
1001 spin_lock_init(&acb->wqbuffer_lock);
1002 acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
1003 ACB_F_MESSAGE_RQBUFFER_CLEARED |
1004 ACB_F_MESSAGE_WQBUFFER_READED);
1005 acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
1006 INIT_LIST_HEAD(&acb->ccb_free_list);
1007 error = arcmsr_remap_pciregion(acb);
1008 if(!error){
1009 goto pci_release_regs;
1010 }
1011 error = arcmsr_alloc_io_queue(acb);
1012 if (!error)
1013 goto unmap_pci_region;
1014 error = arcmsr_get_firmware_spec(acb);
1015 if(!error){
1016 goto free_hbb_mu;
1017 }
1018 arcmsr_free_io_queue(acb);
1019 error = arcmsr_alloc_ccb_pool(acb);
1020 if(error){
1021 goto unmap_pci_region;
1022 }
1023 error = scsi_add_host(host, &pdev->dev);
1024 if(error){
1025 goto free_ccb_pool;
1026 }
1027 if (arcmsr_request_irq(pdev, acb) == FAILED)
1028 goto scsi_host_remove;
1029 arcmsr_iop_init(acb);
1030 arcmsr_init_get_devmap_timer(acb);
1031 if (set_date_time)
1032 arcmsr_init_set_datetime_timer(acb);
1033 if(arcmsr_alloc_sysfs_attr(acb))
1034 goto out_free_sysfs;
1035 scsi_scan_host(host);
1036 return 0;
1037 out_free_sysfs:
1038 if (set_date_time)
1039 del_timer_sync(&acb->refresh_timer);
1040 del_timer_sync(&acb->eternal_timer);
1041 flush_work(&acb->arcmsr_do_message_isr_bh);
1042 arcmsr_stop_adapter_bgrb(acb);
1043 arcmsr_flush_adapter_cache(acb);
1044 arcmsr_free_irq(pdev, acb);
1045 scsi_host_remove:
1046 scsi_remove_host(host);
1047 free_ccb_pool:
1048 arcmsr_free_ccb_pool(acb);
1049 goto unmap_pci_region;
1050 free_hbb_mu:
1051 arcmsr_free_io_queue(acb);
1052 unmap_pci_region:
1053 arcmsr_unmap_pciregion(acb);
1054 pci_release_regs:
1055 pci_release_regions(pdev);
1056 scsi_host_release:
1057 scsi_host_put(host);
1058 pci_disable_dev:
1059 pci_disable_device(pdev);
1060 return -ENODEV;
1061 }
1062
1063 static void arcmsr_free_irq(struct pci_dev *pdev,
1064 struct AdapterControlBlock *acb)
1065 {
1066 int i;
1067
1068 for (i = 0; i < acb->vector_count; i++)
1069 free_irq(pci_irq_vector(pdev, i), acb);
1070 pci_free_irq_vectors(pdev);
1071 }
1072
1073 static int arcmsr_suspend(struct pci_dev *pdev, pm_message_t state)
1074 {
1075 uint32_t intmask_org;
1076 struct Scsi_Host *host = pci_get_drvdata(pdev);
1077 struct AdapterControlBlock *acb =
1078 (struct AdapterControlBlock *)host->hostdata;
1079
1080 intmask_org = arcmsr_disable_outbound_ints(acb);
1081 arcmsr_free_irq(pdev, acb);
1082 del_timer_sync(&acb->eternal_timer);
1083 if (set_date_time)
1084 del_timer_sync(&acb->refresh_timer);
1085 flush_work(&acb->arcmsr_do_message_isr_bh);
1086 arcmsr_stop_adapter_bgrb(acb);
1087 arcmsr_flush_adapter_cache(acb);
1088 pci_set_drvdata(pdev, host);
1089 pci_save_state(pdev);
1090 pci_disable_device(pdev);
1091 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1092 return 0;
1093 }
1094
1095 static int arcmsr_resume(struct pci_dev *pdev)
1096 {
1097 struct Scsi_Host *host = pci_get_drvdata(pdev);
1098 struct AdapterControlBlock *acb =
1099 (struct AdapterControlBlock *)host->hostdata;
1100
1101 pci_set_power_state(pdev, PCI_D0);
1102 pci_enable_wake(pdev, PCI_D0, 0);
1103 pci_restore_state(pdev);
1104 if (pci_enable_device(pdev)) {
1105 pr_warn("%s: pci_enable_device error\n", __func__);
1106 return -ENODEV;
1107 }
1108 if (arcmsr_set_dma_mask(acb))
1109 goto controller_unregister;
1110 pci_set_master(pdev);
1111 if (arcmsr_request_irq(pdev, acb) == FAILED)
1112 goto controller_stop;
1113 switch (acb->adapter_type) {
1114 case ACB_ADAPTER_TYPE_B: {
1115 struct MessageUnit_B *reg = acb->pmuB;
1116 uint32_t i;
1117 for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
1118 reg->post_qbuffer[i] = 0;
1119 reg->done_qbuffer[i] = 0;
1120 }
1121 reg->postq_index = 0;
1122 reg->doneq_index = 0;
1123 break;
1124 }
1125 case ACB_ADAPTER_TYPE_E:
1126 writel(0, &acb->pmuE->host_int_status);
1127 writel(ARCMSR_HBEMU_DOORBELL_SYNC, &acb->pmuE->iobound_doorbell);
1128 acb->in_doorbell = 0;
1129 acb->out_doorbell = 0;
1130 acb->doneq_index = 0;
1131 break;
1132 }
1133 arcmsr_iop_init(acb);
1134 arcmsr_init_get_devmap_timer(acb);
1135 if (set_date_time)
1136 arcmsr_init_set_datetime_timer(acb);
1137 return 0;
1138 controller_stop:
1139 arcmsr_stop_adapter_bgrb(acb);
1140 arcmsr_flush_adapter_cache(acb);
1141 controller_unregister:
1142 scsi_remove_host(host);
1143 arcmsr_free_ccb_pool(acb);
1144 arcmsr_unmap_pciregion(acb);
1145 pci_release_regions(pdev);
1146 scsi_host_put(host);
1147 pci_disable_device(pdev);
1148 return -ENODEV;
1149 }
1150
1151 static uint8_t arcmsr_hbaA_abort_allcmd(struct AdapterControlBlock *acb)
1152 {
1153 struct MessageUnit_A __iomem *reg = acb->pmuA;
1154 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, &reg->inbound_msgaddr0);
1155 if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
1156 printk(KERN_NOTICE
1157 "arcmsr%d: wait 'abort all outstanding command' timeout\n"
1158 , acb->host->host_no);
1159 return false;
1160 }
1161 return true;
1162 }
1163
1164 static uint8_t arcmsr_hbaB_abort_allcmd(struct AdapterControlBlock *acb)
1165 {
1166 struct MessageUnit_B *reg = acb->pmuB;
1167
1168 writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell);
1169 if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
1170 printk(KERN_NOTICE
1171 "arcmsr%d: wait 'abort all outstanding command' timeout\n"
1172 , acb->host->host_no);
1173 return false;
1174 }
1175 return true;
1176 }
1177 static uint8_t arcmsr_hbaC_abort_allcmd(struct AdapterControlBlock *pACB)
1178 {
1179 struct MessageUnit_C __iomem *reg = pACB->pmuC;
1180 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, &reg->inbound_msgaddr0);
1181 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
1182 if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
1183 printk(KERN_NOTICE
1184 "arcmsr%d: wait 'abort all outstanding command' timeout\n"
1185 , pACB->host->host_no);
1186 return false;
1187 }
1188 return true;
1189 }
1190
1191 static uint8_t arcmsr_hbaD_abort_allcmd(struct AdapterControlBlock *pACB)
1192 {
1193 struct MessageUnit_D *reg = pACB->pmuD;
1194
1195 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, reg->inbound_msgaddr0);
1196 if (!arcmsr_hbaD_wait_msgint_ready(pACB)) {
1197 pr_notice("arcmsr%d: wait 'abort all outstanding "
1198 "command' timeout\n", pACB->host->host_no);
1199 return false;
1200 }
1201 return true;
1202 }
1203
1204 static uint8_t arcmsr_hbaE_abort_allcmd(struct AdapterControlBlock *pACB)
1205 {
1206 struct MessageUnit_E __iomem *reg = pACB->pmuE;
1207
1208 writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, &reg->inbound_msgaddr0);
1209 pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
1210 writel(pACB->out_doorbell, &reg->iobound_doorbell);
1211 if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
1212 pr_notice("arcmsr%d: wait 'abort all outstanding "
1213 "command' timeout\n", pACB->host->host_no);
1214 return false;
1215 }
1216 return true;
1217 }
1218
1219 static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
1220 {
1221 uint8_t rtnval = 0;
1222 switch (acb->adapter_type) {
1223 case ACB_ADAPTER_TYPE_A: {
1224 rtnval = arcmsr_hbaA_abort_allcmd(acb);
1225 }
1226 break;
1227
1228 case ACB_ADAPTER_TYPE_B: {
1229 rtnval = arcmsr_hbaB_abort_allcmd(acb);
1230 }
1231 break;
1232
1233 case ACB_ADAPTER_TYPE_C: {
1234 rtnval = arcmsr_hbaC_abort_allcmd(acb);
1235 }
1236 break;
1237
1238 case ACB_ADAPTER_TYPE_D:
1239 rtnval = arcmsr_hbaD_abort_allcmd(acb);
1240 break;
1241 case ACB_ADAPTER_TYPE_E:
1242 rtnval = arcmsr_hbaE_abort_allcmd(acb);
1243 break;
1244 }
1245 return rtnval;
1246 }
1247
1248 static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb)
1249 {
1250 struct scsi_cmnd *pcmd = ccb->pcmd;
1251
1252 scsi_dma_unmap(pcmd);
1253 }
1254
1255 static void arcmsr_ccb_complete(struct CommandControlBlock *ccb)
1256 {
1257 struct AdapterControlBlock *acb = ccb->acb;
1258 struct scsi_cmnd *pcmd = ccb->pcmd;
1259 unsigned long flags;
1260 atomic_dec(&acb->ccboutstandingcount);
1261 arcmsr_pci_unmap_dma(ccb);
1262 ccb->startdone = ARCMSR_CCB_DONE;
1263 spin_lock_irqsave(&acb->ccblist_lock, flags);
1264 list_add_tail(&ccb->list, &acb->ccb_free_list);
1265 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
1266 pcmd->scsi_done(pcmd);
1267 }
1268
1269 static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
1270 {
1271
1272 struct scsi_cmnd *pcmd = ccb->pcmd;
1273 struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
1274 pcmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
1275 if (sensebuffer) {
1276 int sense_data_length =
1277 sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
1278 ? sizeof(struct SENSE_DATA) : SCSI_SENSE_BUFFERSIZE;
1279 memset(sensebuffer, 0, SCSI_SENSE_BUFFERSIZE);
1280 memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
1281 sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
1282 sensebuffer->Valid = 1;
1283 pcmd->result |= (DRIVER_SENSE << 24);
1284 }
1285 }
1286
1287 static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
1288 {
1289 u32 orig_mask = 0;
1290 switch (acb->adapter_type) {
1291 case ACB_ADAPTER_TYPE_A : {
1292 struct MessageUnit_A __iomem *reg = acb->pmuA;
1293 orig_mask = readl(&reg->outbound_intmask);
1294 writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \
1295 &reg->outbound_intmask);
1296 }
1297 break;
1298 case ACB_ADAPTER_TYPE_B : {
1299 struct MessageUnit_B *reg = acb->pmuB;
1300 orig_mask = readl(reg->iop2drv_doorbell_mask);
1301 writel(0, reg->iop2drv_doorbell_mask);
1302 }
1303 break;
1304 case ACB_ADAPTER_TYPE_C:{
1305 struct MessageUnit_C __iomem *reg = acb->pmuC;
1306 /* disable all outbound interrupt */
1307 orig_mask = readl(&reg->host_int_mask); /* disable outbound message0 int */
1308 writel(orig_mask|ARCMSR_HBCMU_ALL_INTMASKENABLE, &reg->host_int_mask);
1309 }
1310 break;
1311 case ACB_ADAPTER_TYPE_D: {
1312 struct MessageUnit_D *reg = acb->pmuD;
1313 /* disable all outbound interrupt */
1314 writel(ARCMSR_ARC1214_ALL_INT_DISABLE, reg->pcief0_int_enable);
1315 }
1316 break;
1317 case ACB_ADAPTER_TYPE_E: {
1318 struct MessageUnit_E __iomem *reg = acb->pmuE;
1319 orig_mask = readl(&reg->host_int_mask);
1320 writel(orig_mask | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR, &reg->host_int_mask);
1321 readl(&reg->host_int_mask); /* Dummy readl to force pci flush */
1322 }
1323 break;
1324 }
1325 return orig_mask;
1326 }
1327
1328 static void arcmsr_report_ccb_state(struct AdapterControlBlock *acb,
1329 struct CommandControlBlock *ccb, bool error)
1330 {
1331 uint8_t id, lun;
1332 id = ccb->pcmd->device->id;
1333 lun = ccb->pcmd->device->lun;
1334 if (!error) {
1335 if (acb->devstate[id][lun] == ARECA_RAID_GONE)
1336 acb->devstate[id][lun] = ARECA_RAID_GOOD;
1337 ccb->pcmd->result = DID_OK << 16;
1338 arcmsr_ccb_complete(ccb);
1339 }else{
1340 switch (ccb->arcmsr_cdb.DeviceStatus) {
1341 case ARCMSR_DEV_SELECT_TIMEOUT: {
1342 acb->devstate[id][lun] = ARECA_RAID_GONE;
1343 ccb->pcmd->result = DID_NO_CONNECT << 16;
1344 arcmsr_ccb_complete(ccb);
1345 }
1346 break;
1347
1348 case ARCMSR_DEV_ABORTED:
1349
1350 case ARCMSR_DEV_INIT_FAIL: {
1351 acb->devstate[id][lun] = ARECA_RAID_GONE;
1352 ccb->pcmd->result = DID_BAD_TARGET << 16;
1353 arcmsr_ccb_complete(ccb);
1354 }
1355 break;
1356
1357 case ARCMSR_DEV_CHECK_CONDITION: {
1358 acb->devstate[id][lun] = ARECA_RAID_GOOD;
1359 arcmsr_report_sense_info(ccb);
1360 arcmsr_ccb_complete(ccb);
1361 }
1362 break;
1363
1364 default:
1365 printk(KERN_NOTICE
1366 "arcmsr%d: scsi id = %d lun = %d isr get command error done, \
1367 but got unknown DeviceStatus = 0x%x \n"
1368 , acb->host->host_no
1369 , id
1370 , lun
1371 , ccb->arcmsr_cdb.DeviceStatus);
1372 acb->devstate[id][lun] = ARECA_RAID_GONE;
1373 ccb->pcmd->result = DID_NO_CONNECT << 16;
1374 arcmsr_ccb_complete(ccb);
1375 break;
1376 }
1377 }
1378 }
1379
1380 static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, struct CommandControlBlock *pCCB, bool error)
1381 {
1382 if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
1383 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
1384 struct scsi_cmnd *abortcmd = pCCB->pcmd;
1385 if (abortcmd) {
1386 abortcmd->result |= DID_ABORT << 16;
1387 arcmsr_ccb_complete(pCCB);
1388 printk(KERN_NOTICE "arcmsr%d: pCCB ='0x%p' isr got aborted command \n",
1389 acb->host->host_no, pCCB);
1390 }
1391 return;
1392 }
1393 printk(KERN_NOTICE "arcmsr%d: isr get an illegal ccb command \
1394 done acb = '0x%p'"
1395 "ccb = '0x%p' ccbacb = '0x%p' startdone = 0x%x"
1396 " ccboutstandingcount = %d \n"
1397 , acb->host->host_no
1398 , acb
1399 , pCCB
1400 , pCCB->acb
1401 , pCCB->startdone
1402 , atomic_read(&acb->ccboutstandingcount));
1403 return;
1404 }
1405 arcmsr_report_ccb_state(acb, pCCB, error);
1406 }
1407
1408 static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
1409 {
1410 int i = 0;
1411 uint32_t flag_ccb;
1412 struct ARCMSR_CDB *pARCMSR_CDB;
1413 bool error;
1414 struct CommandControlBlock *pCCB;
1415 unsigned long ccb_cdb_phy, cdb_phy_hipart;
1416
1417 switch (acb->adapter_type) {
1418
1419 case ACB_ADAPTER_TYPE_A: {
1420 struct MessageUnit_A __iomem *reg = acb->pmuA;
1421 uint32_t outbound_intstatus;
1422 outbound_intstatus = readl(&reg->outbound_intstatus) &
1423 acb->outbound_int_enable;
1424 /*clear and abort all outbound posted Q*/
1425 writel(outbound_intstatus, &reg->outbound_intstatus);/*clear interrupt*/
1426 while(((flag_ccb = readl(&reg->outbound_queueport)) != 0xFFFFFFFF)
1427 && (i++ < acb->maxOutstanding)) {
1428 ccb_cdb_phy = (flag_ccb << 5) & 0xffffffff;
1429 if (acb->cdb_phyadd_hipart)
1430 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
1431 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
1432 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1433 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
1434 arcmsr_drain_donequeue(acb, pCCB, error);
1435 }
1436 }
1437 break;
1438
1439 case ACB_ADAPTER_TYPE_B: {
1440 struct MessageUnit_B *reg = acb->pmuB;
1441 /*clear all outbound posted Q*/
1442 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell); /* clear doorbell interrupt */
1443 for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
1444 flag_ccb = reg->done_qbuffer[i];
1445 if (flag_ccb != 0) {
1446 reg->done_qbuffer[i] = 0;
1447 ccb_cdb_phy = (flag_ccb << 5) & 0xffffffff;
1448 if (acb->cdb_phyadd_hipart)
1449 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
1450 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
1451 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1452 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
1453 arcmsr_drain_donequeue(acb, pCCB, error);
1454 }
1455 reg->post_qbuffer[i] = 0;
1456 }
1457 reg->doneq_index = 0;
1458 reg->postq_index = 0;
1459 }
1460 break;
1461 case ACB_ADAPTER_TYPE_C: {
1462 struct MessageUnit_C __iomem *reg = acb->pmuC;
1463 while ((readl(&reg->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < acb->maxOutstanding)) {
1464 /*need to do*/
1465 flag_ccb = readl(&reg->outbound_queueport_low);
1466 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
1467 if (acb->cdb_phyadd_hipart)
1468 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
1469 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
1470 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
1471 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
1472 arcmsr_drain_donequeue(acb, pCCB, error);
1473 }
1474 }
1475 break;
1476 case ACB_ADAPTER_TYPE_D: {
1477 struct MessageUnit_D *pmu = acb->pmuD;
1478 uint32_t outbound_write_pointer;
1479 uint32_t doneq_index, index_stripped, addressLow, residual, toggle;
1480 unsigned long flags;
1481
1482 residual = atomic_read(&acb->ccboutstandingcount);
1483 for (i = 0; i < residual; i++) {
1484 spin_lock_irqsave(&acb->doneq_lock, flags);
1485 outbound_write_pointer =
1486 pmu->done_qbuffer[0].addressLow + 1;
1487 doneq_index = pmu->doneq_index;
1488 if ((doneq_index & 0xFFF) !=
1489 (outbound_write_pointer & 0xFFF)) {
1490 toggle = doneq_index & 0x4000;
1491 index_stripped = (doneq_index & 0xFFF) + 1;
1492 index_stripped %= ARCMSR_MAX_ARC1214_DONEQUEUE;
1493 pmu->doneq_index = index_stripped ? (index_stripped | toggle) :
1494 ((toggle ^ 0x4000) + 1);
1495 doneq_index = pmu->doneq_index;
1496 spin_unlock_irqrestore(&acb->doneq_lock, flags);
1497 cdb_phy_hipart = pmu->done_qbuffer[doneq_index &
1498 0xFFF].addressHigh;
1499 addressLow = pmu->done_qbuffer[doneq_index &
1500 0xFFF].addressLow;
1501 ccb_cdb_phy = (addressLow & 0xFFFFFFF0);
1502 if (acb->cdb_phyadd_hipart)
1503 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
1504 pARCMSR_CDB = (struct ARCMSR_CDB *)
1505 (acb->vir2phy_offset + ccb_cdb_phy);
1506 pCCB = container_of(pARCMSR_CDB,
1507 struct CommandControlBlock, arcmsr_cdb);
1508 error = (addressLow &
1509 ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ?
1510 true : false;
1511 arcmsr_drain_donequeue(acb, pCCB, error);
1512 writel(doneq_index,
1513 pmu->outboundlist_read_pointer);
1514 } else {
1515 spin_unlock_irqrestore(&acb->doneq_lock, flags);
1516 mdelay(10);
1517 }
1518 }
1519 pmu->postq_index = 0;
1520 pmu->doneq_index = 0x40FF;
1521 }
1522 break;
1523 case ACB_ADAPTER_TYPE_E:
1524 arcmsr_hbaE_postqueue_isr(acb);
1525 break;
1526 }
1527 }
1528
1529 static void arcmsr_remove_scsi_devices(struct AdapterControlBlock *acb)
1530 {
1531 char *acb_dev_map = (char *)acb->device_map;
1532 int target, lun, i;
1533 struct scsi_device *psdev;
1534 struct CommandControlBlock *ccb;
1535 char temp;
1536
1537 for (i = 0; i < acb->maxFreeCCB; i++) {
1538 ccb = acb->pccb_pool[i];
1539 if (ccb->startdone == ARCMSR_CCB_START) {
1540 ccb->pcmd->result = DID_NO_CONNECT << 16;
1541 arcmsr_pci_unmap_dma(ccb);
1542 ccb->pcmd->scsi_done(ccb->pcmd);
1543 }
1544 }
1545 for (target = 0; target < ARCMSR_MAX_TARGETID; target++) {
1546 temp = *acb_dev_map;
1547 if (temp) {
1548 for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
1549 if (temp & 1) {
1550 psdev = scsi_device_lookup(acb->host,
1551 0, target, lun);
1552 if (psdev != NULL) {
1553 scsi_remove_device(psdev);
1554 scsi_device_put(psdev);
1555 }
1556 }
1557 temp >>= 1;
1558 }
1559 *acb_dev_map = 0;
1560 }
1561 acb_dev_map++;
1562 }
1563 }
1564
1565 static void arcmsr_free_pcidev(struct AdapterControlBlock *acb)
1566 {
1567 struct pci_dev *pdev;
1568 struct Scsi_Host *host;
1569
1570 host = acb->host;
1571 arcmsr_free_sysfs_attr(acb);
1572 scsi_remove_host(host);
1573 flush_work(&acb->arcmsr_do_message_isr_bh);
1574 del_timer_sync(&acb->eternal_timer);
1575 if (set_date_time)
1576 del_timer_sync(&acb->refresh_timer);
1577 pdev = acb->pdev;
1578 arcmsr_free_irq(pdev, acb);
1579 arcmsr_free_ccb_pool(acb);
1580 arcmsr_unmap_pciregion(acb);
1581 pci_release_regions(pdev);
1582 scsi_host_put(host);
1583 pci_disable_device(pdev);
1584 }
1585
1586 static void arcmsr_remove(struct pci_dev *pdev)
1587 {
1588 struct Scsi_Host *host = pci_get_drvdata(pdev);
1589 struct AdapterControlBlock *acb =
1590 (struct AdapterControlBlock *) host->hostdata;
1591 int poll_count = 0;
1592 uint16_t dev_id;
1593
1594 pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id);
1595 if (dev_id == 0xffff) {
1596 acb->acb_flags &= ~ACB_F_IOP_INITED;
1597 acb->acb_flags |= ACB_F_ADAPTER_REMOVED;
1598 arcmsr_remove_scsi_devices(acb);
1599 arcmsr_free_pcidev(acb);
1600 return;
1601 }
1602 arcmsr_free_sysfs_attr(acb);
1603 scsi_remove_host(host);
1604 flush_work(&acb->arcmsr_do_message_isr_bh);
1605 del_timer_sync(&acb->eternal_timer);
1606 if (set_date_time)
1607 del_timer_sync(&acb->refresh_timer);
1608 arcmsr_disable_outbound_ints(acb);
1609 arcmsr_stop_adapter_bgrb(acb);
1610 arcmsr_flush_adapter_cache(acb);
1611 acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
1612 acb->acb_flags &= ~ACB_F_IOP_INITED;
1613
1614 for (poll_count = 0; poll_count < acb->maxOutstanding; poll_count++){
1615 if (!atomic_read(&acb->ccboutstandingcount))
1616 break;
1617 arcmsr_interrupt(acb);/* FIXME: need spinlock */
1618 msleep(25);
1619 }
1620
1621 if (atomic_read(&acb->ccboutstandingcount)) {
1622 int i;
1623
1624 arcmsr_abort_allcmd(acb);
1625 arcmsr_done4abort_postqueue(acb);
1626 for (i = 0; i < acb->maxFreeCCB; i++) {
1627 struct CommandControlBlock *ccb = acb->pccb_pool[i];
1628 if (ccb->startdone == ARCMSR_CCB_START) {
1629 ccb->startdone = ARCMSR_CCB_ABORTED;
1630 ccb->pcmd->result = DID_ABORT << 16;
1631 arcmsr_ccb_complete(ccb);
1632 }
1633 }
1634 }
1635 arcmsr_free_irq(pdev, acb);
1636 arcmsr_free_ccb_pool(acb);
1637 arcmsr_unmap_pciregion(acb);
1638 pci_release_regions(pdev);
1639 scsi_host_put(host);
1640 pci_disable_device(pdev);
1641 }
1642
1643 static void arcmsr_shutdown(struct pci_dev *pdev)
1644 {
1645 struct Scsi_Host *host = pci_get_drvdata(pdev);
1646 struct AdapterControlBlock *acb =
1647 (struct AdapterControlBlock *)host->hostdata;
1648 if (acb->acb_flags & ACB_F_ADAPTER_REMOVED)
1649 return;
1650 del_timer_sync(&acb->eternal_timer);
1651 if (set_date_time)
1652 del_timer_sync(&acb->refresh_timer);
1653 arcmsr_disable_outbound_ints(acb);
1654 arcmsr_free_irq(pdev, acb);
1655 flush_work(&acb->arcmsr_do_message_isr_bh);
1656 arcmsr_stop_adapter_bgrb(acb);
1657 arcmsr_flush_adapter_cache(acb);
1658 }
1659
1660 static int arcmsr_module_init(void)
1661 {
1662 int error = 0;
1663 error = pci_register_driver(&arcmsr_pci_driver);
1664 return error;
1665 }
1666
1667 static void arcmsr_module_exit(void)
1668 {
1669 pci_unregister_driver(&arcmsr_pci_driver);
1670 }
1671 module_init(arcmsr_module_init);
1672 module_exit(arcmsr_module_exit);
1673
1674 static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
1675 u32 intmask_org)
1676 {
1677 u32 mask;
1678 switch (acb->adapter_type) {
1679
1680 case ACB_ADAPTER_TYPE_A: {
1681 struct MessageUnit_A __iomem *reg = acb->pmuA;
1682 mask = intmask_org & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
1683 ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|
1684 ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
1685 writel(mask, &reg->outbound_intmask);
1686 acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
1687 }
1688 break;
1689
1690 case ACB_ADAPTER_TYPE_B: {
1691 struct MessageUnit_B *reg = acb->pmuB;
1692 mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK |
1693 ARCMSR_IOP2DRV_DATA_READ_OK |
1694 ARCMSR_IOP2DRV_CDB_DONE |
1695 ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
1696 writel(mask, reg->iop2drv_doorbell_mask);
1697 acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
1698 }
1699 break;
1700 case ACB_ADAPTER_TYPE_C: {
1701 struct MessageUnit_C __iomem *reg = acb->pmuC;
1702 mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK|ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
1703 writel(intmask_org & mask, &reg->host_int_mask);
1704 acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
1705 }
1706 break;
1707 case ACB_ADAPTER_TYPE_D: {
1708 struct MessageUnit_D *reg = acb->pmuD;
1709
1710 mask = ARCMSR_ARC1214_ALL_INT_ENABLE;
1711 writel(intmask_org | mask, reg->pcief0_int_enable);
1712 break;
1713 }
1714 case ACB_ADAPTER_TYPE_E: {
1715 struct MessageUnit_E __iomem *reg = acb->pmuE;
1716
1717 mask = ~(ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR);
1718 writel(intmask_org & mask, &reg->host_int_mask);
1719 break;
1720 }
1721 }
1722 }
1723
1724 static int arcmsr_build_ccb(struct AdapterControlBlock *acb,
1725 struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd)
1726 {
1727 struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
1728 int8_t *psge = (int8_t *)&arcmsr_cdb->u;
1729 __le32 address_lo, address_hi;
1730 int arccdbsize = 0x30;
1731 __le32 length = 0;
1732 int i;
1733 struct scatterlist *sg;
1734 int nseg;
1735 ccb->pcmd = pcmd;
1736 memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
1737 arcmsr_cdb->TargetID = pcmd->device->id;
1738 arcmsr_cdb->LUN = pcmd->device->lun;
1739 arcmsr_cdb->Function = 1;
1740 arcmsr_cdb->msgContext = 0;
1741 memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len);
1742
1743 nseg = scsi_dma_map(pcmd);
1744 if (unlikely(nseg > acb->host->sg_tablesize || nseg < 0))
1745 return FAILED;
1746 scsi_for_each_sg(pcmd, sg, nseg, i) {
1747 /* Get the physical address of the current data pointer */
1748 length = cpu_to_le32(sg_dma_len(sg));
1749 address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg)));
1750 address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg)));
1751 if (address_hi == 0) {
1752 struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
1753
1754 pdma_sg->address = address_lo;
1755 pdma_sg->length = length;
1756 psge += sizeof (struct SG32ENTRY);
1757 arccdbsize += sizeof (struct SG32ENTRY);
1758 } else {
1759 struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
1760
1761 pdma_sg->addresshigh = address_hi;
1762 pdma_sg->address = address_lo;
1763 pdma_sg->length = length|cpu_to_le32(IS_SG64_ADDR);
1764 psge += sizeof (struct SG64ENTRY);
1765 arccdbsize += sizeof (struct SG64ENTRY);
1766 }
1767 }
1768 arcmsr_cdb->sgcount = (uint8_t)nseg;
1769 arcmsr_cdb->DataLength = scsi_bufflen(pcmd);
1770 arcmsr_cdb->msgPages = arccdbsize/0x100 + (arccdbsize % 0x100 ? 1 : 0);
1771 if ( arccdbsize > 256)
1772 arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
1773 if (pcmd->sc_data_direction == DMA_TO_DEVICE)
1774 arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
1775 ccb->arc_cdb_size = arccdbsize;
1776 return SUCCESS;
1777 }
1778
1779 static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb)
1780 {
1781 uint32_t cdb_phyaddr = ccb->cdb_phyaddr;
1782 struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb;
1783 atomic_inc(&acb->ccboutstandingcount);
1784 ccb->startdone = ARCMSR_CCB_START;
1785 switch (acb->adapter_type) {
1786 case ACB_ADAPTER_TYPE_A: {
1787 struct MessageUnit_A __iomem *reg = acb->pmuA;
1788
1789 if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
1790 writel(cdb_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
1791 &reg->inbound_queueport);
1792 else
1793 writel(cdb_phyaddr, &reg->inbound_queueport);
1794 break;
1795 }
1796
1797 case ACB_ADAPTER_TYPE_B: {
1798 struct MessageUnit_B *reg = acb->pmuB;
1799 uint32_t ending_index, index = reg->postq_index;
1800
1801 ending_index = ((index + 1) % ARCMSR_MAX_HBB_POSTQUEUE);
1802 reg->post_qbuffer[ending_index] = 0;
1803 if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
1804 reg->post_qbuffer[index] =
1805 cdb_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE;
1806 } else {
1807 reg->post_qbuffer[index] = cdb_phyaddr;
1808 }
1809 index++;
1810 index %= ARCMSR_MAX_HBB_POSTQUEUE;/*if last index number set it to 0 */
1811 reg->postq_index = index;
1812 writel(ARCMSR_DRV2IOP_CDB_POSTED, reg->drv2iop_doorbell);
1813 }
1814 break;
1815 case ACB_ADAPTER_TYPE_C: {
1816 struct MessageUnit_C __iomem *phbcmu = acb->pmuC;
1817 uint32_t ccb_post_stamp, arc_cdb_size;
1818
1819 arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
1820 ccb_post_stamp = (cdb_phyaddr | ((arc_cdb_size - 1) >> 6) | 1);
1821 writel(upper_32_bits(ccb->cdb_phyaddr), &phbcmu->inbound_queueport_high);
1822 writel(ccb_post_stamp, &phbcmu->inbound_queueport_low);
1823 }
1824 break;
1825 case ACB_ADAPTER_TYPE_D: {
1826 struct MessageUnit_D *pmu = acb->pmuD;
1827 u16 index_stripped;
1828 u16 postq_index, toggle;
1829 unsigned long flags;
1830 struct InBound_SRB *pinbound_srb;
1831
1832 spin_lock_irqsave(&acb->postq_lock, flags);
1833 postq_index = pmu->postq_index;
1834 pinbound_srb = (struct InBound_SRB *)&(pmu->post_qbuffer[postq_index & 0xFF]);
1835 pinbound_srb->addressHigh = upper_32_bits(ccb->cdb_phyaddr);
1836 pinbound_srb->addressLow = cdb_phyaddr;
1837 pinbound_srb->length = ccb->arc_cdb_size >> 2;
1838 arcmsr_cdb->msgContext = dma_addr_lo32(cdb_phyaddr);
1839 toggle = postq_index & 0x4000;
1840 index_stripped = postq_index + 1;
1841 index_stripped &= (ARCMSR_MAX_ARC1214_POSTQUEUE - 1);
1842 pmu->postq_index = index_stripped ? (index_stripped | toggle) :
1843 (toggle ^ 0x4000);
1844 writel(postq_index, pmu->inboundlist_write_pointer);
1845 spin_unlock_irqrestore(&acb->postq_lock, flags);
1846 break;
1847 }
1848 case ACB_ADAPTER_TYPE_E: {
1849 struct MessageUnit_E __iomem *pmu = acb->pmuE;
1850 u32 ccb_post_stamp, arc_cdb_size;
1851
1852 arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
1853 ccb_post_stamp = (ccb->smid | ((arc_cdb_size - 1) >> 6));
1854 writel(0, &pmu->inbound_queueport_high);
1855 writel(ccb_post_stamp, &pmu->inbound_queueport_low);
1856 break;
1857 }
1858 }
1859 }
1860
1861 static void arcmsr_hbaA_stop_bgrb(struct AdapterControlBlock *acb)
1862 {
1863 struct MessageUnit_A __iomem *reg = acb->pmuA;
1864 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1865 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, &reg->inbound_msgaddr0);
1866 if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
1867 printk(KERN_NOTICE
1868 "arcmsr%d: wait 'stop adapter background rebuild' timeout\n"
1869 , acb->host->host_no);
1870 }
1871 }
1872
1873 static void arcmsr_hbaB_stop_bgrb(struct AdapterControlBlock *acb)
1874 {
1875 struct MessageUnit_B *reg = acb->pmuB;
1876 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
1877 writel(ARCMSR_MESSAGE_STOP_BGRB, reg->drv2iop_doorbell);
1878
1879 if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
1880 printk(KERN_NOTICE
1881 "arcmsr%d: wait 'stop adapter background rebuild' timeout\n"
1882 , acb->host->host_no);
1883 }
1884 }
1885
1886 static void arcmsr_hbaC_stop_bgrb(struct AdapterControlBlock *pACB)
1887 {
1888 struct MessageUnit_C __iomem *reg = pACB->pmuC;
1889 pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
1890 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, &reg->inbound_msgaddr0);
1891 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
1892 if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
1893 printk(KERN_NOTICE
1894 "arcmsr%d: wait 'stop adapter background rebuild' timeout\n"
1895 , pACB->host->host_no);
1896 }
1897 return;
1898 }
1899
1900 static void arcmsr_hbaD_stop_bgrb(struct AdapterControlBlock *pACB)
1901 {
1902 struct MessageUnit_D *reg = pACB->pmuD;
1903
1904 pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
1905 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, reg->inbound_msgaddr0);
1906 if (!arcmsr_hbaD_wait_msgint_ready(pACB))
1907 pr_notice("arcmsr%d: wait 'stop adapter background rebuild' "
1908 "timeout\n", pACB->host->host_no);
1909 }
1910
1911 static void arcmsr_hbaE_stop_bgrb(struct AdapterControlBlock *pACB)
1912 {
1913 struct MessageUnit_E __iomem *reg = pACB->pmuE;
1914
1915 pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
1916 writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, &reg->inbound_msgaddr0);
1917 pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
1918 writel(pACB->out_doorbell, &reg->iobound_doorbell);
1919 if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
1920 pr_notice("arcmsr%d: wait 'stop adapter background rebuild' "
1921 "timeout\n", pACB->host->host_no);
1922 }
1923 }
1924
1925 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
1926 {
1927 switch (acb->adapter_type) {
1928 case ACB_ADAPTER_TYPE_A: {
1929 arcmsr_hbaA_stop_bgrb(acb);
1930 }
1931 break;
1932
1933 case ACB_ADAPTER_TYPE_B: {
1934 arcmsr_hbaB_stop_bgrb(acb);
1935 }
1936 break;
1937 case ACB_ADAPTER_TYPE_C: {
1938 arcmsr_hbaC_stop_bgrb(acb);
1939 }
1940 break;
1941 case ACB_ADAPTER_TYPE_D:
1942 arcmsr_hbaD_stop_bgrb(acb);
1943 break;
1944 case ACB_ADAPTER_TYPE_E:
1945 arcmsr_hbaE_stop_bgrb(acb);
1946 break;
1947 }
1948 }
1949
1950 static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb)
1951 {
1952 dma_free_coherent(&acb->pdev->dev, acb->uncache_size, acb->dma_coherent, acb->dma_coherent_handle);
1953 }
1954
1955 static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
1956 {
1957 switch (acb->adapter_type) {
1958 case ACB_ADAPTER_TYPE_A: {
1959 struct MessageUnit_A __iomem *reg = acb->pmuA;
1960 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, &reg->inbound_doorbell);
1961 }
1962 break;
1963
1964 case ACB_ADAPTER_TYPE_B: {
1965 struct MessageUnit_B *reg = acb->pmuB;
1966 writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
1967 }
1968 break;
1969 case ACB_ADAPTER_TYPE_C: {
1970 struct MessageUnit_C __iomem *reg = acb->pmuC;
1971
1972 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, &reg->inbound_doorbell);
1973 }
1974 break;
1975 case ACB_ADAPTER_TYPE_D: {
1976 struct MessageUnit_D *reg = acb->pmuD;
1977 writel(ARCMSR_ARC1214_DRV2IOP_DATA_OUT_READ,
1978 reg->inbound_doorbell);
1979 }
1980 break;
1981 case ACB_ADAPTER_TYPE_E: {
1982 struct MessageUnit_E __iomem *reg = acb->pmuE;
1983 acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
1984 writel(acb->out_doorbell, &reg->iobound_doorbell);
1985 }
1986 break;
1987 }
1988 }
1989
1990 static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
1991 {
1992 switch (acb->adapter_type) {
1993 case ACB_ADAPTER_TYPE_A: {
1994 struct MessageUnit_A __iomem *reg = acb->pmuA;
1995 /*
1996 ** push inbound doorbell tell iop, driver data write ok
1997 ** and wait reply on next hwinterrupt for next Qbuffer post
1998 */
1999 writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK, &reg->inbound_doorbell);
2000 }
2001 break;
2002
2003 case ACB_ADAPTER_TYPE_B: {
2004 struct MessageUnit_B *reg = acb->pmuB;
2005 /*
2006 ** push inbound doorbell tell iop, driver data write ok
2007 ** and wait reply on next hwinterrupt for next Qbuffer post
2008 */
2009 writel(ARCMSR_DRV2IOP_DATA_WRITE_OK, reg->drv2iop_doorbell);
2010 }
2011 break;
2012 case ACB_ADAPTER_TYPE_C: {
2013 struct MessageUnit_C __iomem *reg = acb->pmuC;
2014 /*
2015 ** push inbound doorbell tell iop, driver data write ok
2016 ** and wait reply on next hwinterrupt for next Qbuffer post
2017 */
2018 writel(ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK, &reg->inbound_doorbell);
2019 }
2020 break;
2021 case ACB_ADAPTER_TYPE_D: {
2022 struct MessageUnit_D *reg = acb->pmuD;
2023 writel(ARCMSR_ARC1214_DRV2IOP_DATA_IN_READY,
2024 reg->inbound_doorbell);
2025 }
2026 break;
2027 case ACB_ADAPTER_TYPE_E: {
2028 struct MessageUnit_E __iomem *reg = acb->pmuE;
2029 acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK;
2030 writel(acb->out_doorbell, &reg->iobound_doorbell);
2031 }
2032 break;
2033 }
2034 }
2035
2036 struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
2037 {
2038 struct QBUFFER __iomem *qbuffer = NULL;
2039 switch (acb->adapter_type) {
2040
2041 case ACB_ADAPTER_TYPE_A: {
2042 struct MessageUnit_A __iomem *reg = acb->pmuA;
2043 qbuffer = (struct QBUFFER __iomem *)&reg->message_rbuffer;
2044 }
2045 break;
2046
2047 case ACB_ADAPTER_TYPE_B: {
2048 struct MessageUnit_B *reg = acb->pmuB;
2049 qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
2050 }
2051 break;
2052 case ACB_ADAPTER_TYPE_C: {
2053 struct MessageUnit_C __iomem *phbcmu = acb->pmuC;
2054 qbuffer = (struct QBUFFER __iomem *)&phbcmu->message_rbuffer;
2055 }
2056 break;
2057 case ACB_ADAPTER_TYPE_D: {
2058 struct MessageUnit_D *reg = acb->pmuD;
2059 qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
2060 }
2061 break;
2062 case ACB_ADAPTER_TYPE_E: {
2063 struct MessageUnit_E __iomem *reg = acb->pmuE;
2064 qbuffer = (struct QBUFFER __iomem *)&reg->message_rbuffer;
2065 }
2066 break;
2067 }
2068 return qbuffer;
2069 }
2070
2071 static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBlock *acb)
2072 {
2073 struct QBUFFER __iomem *pqbuffer = NULL;
2074 switch (acb->adapter_type) {
2075
2076 case ACB_ADAPTER_TYPE_A: {
2077 struct MessageUnit_A __iomem *reg = acb->pmuA;
2078 pqbuffer = (struct QBUFFER __iomem *) &reg->message_wbuffer;
2079 }
2080 break;
2081
2082 case ACB_ADAPTER_TYPE_B: {
2083 struct MessageUnit_B *reg = acb->pmuB;
2084 pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
2085 }
2086 break;
2087 case ACB_ADAPTER_TYPE_C: {
2088 struct MessageUnit_C __iomem *reg = acb->pmuC;
2089 pqbuffer = (struct QBUFFER __iomem *)&reg->message_wbuffer;
2090 }
2091 break;
2092 case ACB_ADAPTER_TYPE_D: {
2093 struct MessageUnit_D *reg = acb->pmuD;
2094 pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
2095 }
2096 break;
2097 case ACB_ADAPTER_TYPE_E: {
2098 struct MessageUnit_E __iomem *reg = acb->pmuE;
2099 pqbuffer = (struct QBUFFER __iomem *)&reg->message_wbuffer;
2100 }
2101 break;
2102 }
2103 return pqbuffer;
2104 }
2105
2106 static uint32_t
2107 arcmsr_Read_iop_rqbuffer_in_DWORD(struct AdapterControlBlock *acb,
2108 struct QBUFFER __iomem *prbuffer)
2109 {
2110 uint8_t *pQbuffer;
2111 uint8_t *buf1 = NULL;
2112 uint32_t __iomem *iop_data;
2113 uint32_t iop_len, data_len, *buf2 = NULL;
2114
2115 iop_data = (uint32_t __iomem *)prbuffer->data;
2116 iop_len = readl(&prbuffer->data_len);
2117 if (iop_len > 0) {
2118 buf1 = kmalloc(128, GFP_ATOMIC);
2119 buf2 = (uint32_t *)buf1;
2120 if (buf1 == NULL)
2121 return 0;
2122 data_len = iop_len;
2123 while (data_len >= 4) {
2124 *buf2++ = readl(iop_data);
2125 iop_data++;
2126 data_len -= 4;
2127 }
2128 if (data_len)
2129 *buf2 = readl(iop_data);
2130 buf2 = (uint32_t *)buf1;
2131 }
2132 while (iop_len > 0) {
2133 pQbuffer = &acb->rqbuffer[acb->rqbuf_putIndex];
2134 *pQbuffer = *buf1;
2135 acb->rqbuf_putIndex++;
2136 /* if last, index number set it to 0 */
2137 acb->rqbuf_putIndex %= ARCMSR_MAX_QBUFFER;
2138 buf1++;
2139 iop_len--;
2140 }
2141 kfree(buf2);
2142 /* let IOP know data has been read */
2143 arcmsr_iop_message_read(acb);
2144 return 1;
2145 }
2146
2147 uint32_t
2148 arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb,
2149 struct QBUFFER __iomem *prbuffer) {
2150
2151 uint8_t *pQbuffer;
2152 uint8_t __iomem *iop_data;
2153 uint32_t iop_len;
2154
2155 if (acb->adapter_type > ACB_ADAPTER_TYPE_B)
2156 return arcmsr_Read_iop_rqbuffer_in_DWORD(acb, prbuffer);
2157 iop_data = (uint8_t __iomem *)prbuffer->data;
2158 iop_len = readl(&prbuffer->data_len);
2159 while (iop_len > 0) {
2160 pQbuffer = &acb->rqbuffer[acb->rqbuf_putIndex];
2161 *pQbuffer = readb(iop_data);
2162 acb->rqbuf_putIndex++;
2163 acb->rqbuf_putIndex %= ARCMSR_MAX_QBUFFER;
2164 iop_data++;
2165 iop_len--;
2166 }
2167 arcmsr_iop_message_read(acb);
2168 return 1;
2169 }
2170
2171 static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb)
2172 {
2173 unsigned long flags;
2174 struct QBUFFER __iomem *prbuffer;
2175 int32_t buf_empty_len;
2176
2177 spin_lock_irqsave(&acb->rqbuffer_lock, flags);
2178 prbuffer = arcmsr_get_iop_rqbuffer(acb);
2179 buf_empty_len = (acb->rqbuf_putIndex - acb->rqbuf_getIndex - 1) &
2180 (ARCMSR_MAX_QBUFFER - 1);
2181 if (buf_empty_len >= readl(&prbuffer->data_len)) {
2182 if (arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2183 acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2184 } else
2185 acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2186 spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
2187 }
2188
2189 static void arcmsr_write_ioctldata2iop_in_DWORD(struct AdapterControlBlock *acb)
2190 {
2191 uint8_t *pQbuffer;
2192 struct QBUFFER __iomem *pwbuffer;
2193 uint8_t *buf1 = NULL;
2194 uint32_t __iomem *iop_data;
2195 uint32_t allxfer_len = 0, data_len, *buf2 = NULL, data;
2196
2197 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
2198 buf1 = kmalloc(128, GFP_ATOMIC);
2199 buf2 = (uint32_t *)buf1;
2200 if (buf1 == NULL)
2201 return;
2202
2203 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
2204 pwbuffer = arcmsr_get_iop_wqbuffer(acb);
2205 iop_data = (uint32_t __iomem *)pwbuffer->data;
2206 while ((acb->wqbuf_getIndex != acb->wqbuf_putIndex)
2207 && (allxfer_len < 124)) {
2208 pQbuffer = &acb->wqbuffer[acb->wqbuf_getIndex];
2209 *buf1 = *pQbuffer;
2210 acb->wqbuf_getIndex++;
2211 acb->wqbuf_getIndex %= ARCMSR_MAX_QBUFFER;
2212 buf1++;
2213 allxfer_len++;
2214 }
2215 data_len = allxfer_len;
2216 buf1 = (uint8_t *)buf2;
2217 while (data_len >= 4) {
2218 data = *buf2++;
2219 writel(data, iop_data);
2220 iop_data++;
2221 data_len -= 4;
2222 }
2223 if (data_len) {
2224 data = *buf2;
2225 writel(data, iop_data);
2226 }
2227 writel(allxfer_len, &pwbuffer->data_len);
2228 kfree(buf1);
2229 arcmsr_iop_message_wrote(acb);
2230 }
2231 }
2232
2233 void
2234 arcmsr_write_ioctldata2iop(struct AdapterControlBlock *acb)
2235 {
2236 uint8_t *pQbuffer;
2237 struct QBUFFER __iomem *pwbuffer;
2238 uint8_t __iomem *iop_data;
2239 int32_t allxfer_len = 0;
2240
2241 if (acb->adapter_type > ACB_ADAPTER_TYPE_B) {
2242 arcmsr_write_ioctldata2iop_in_DWORD(acb);
2243 return;
2244 }
2245 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
2246 acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
2247 pwbuffer = arcmsr_get_iop_wqbuffer(acb);
2248 iop_data = (uint8_t __iomem *)pwbuffer->data;
2249 while ((acb->wqbuf_getIndex != acb->wqbuf_putIndex)
2250 && (allxfer_len < 124)) {
2251 pQbuffer = &acb->wqbuffer[acb->wqbuf_getIndex];
2252 writeb(*pQbuffer, iop_data);
2253 acb->wqbuf_getIndex++;
2254 acb->wqbuf_getIndex %= ARCMSR_MAX_QBUFFER;
2255 iop_data++;
2256 allxfer_len++;
2257 }
2258 writel(allxfer_len, &pwbuffer->data_len);
2259 arcmsr_iop_message_wrote(acb);
2260 }
2261 }
2262
2263 static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb)
2264 {
2265 unsigned long flags;
2266
2267 spin_lock_irqsave(&acb->wqbuffer_lock, flags);
2268 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED;
2269 if (acb->wqbuf_getIndex != acb->wqbuf_putIndex)
2270 arcmsr_write_ioctldata2iop(acb);
2271 if (acb->wqbuf_getIndex == acb->wqbuf_putIndex)
2272 acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
2273 spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
2274 }
2275
2276 static void arcmsr_hbaA_doorbell_isr(struct AdapterControlBlock *acb)
2277 {
2278 uint32_t outbound_doorbell;
2279 struct MessageUnit_A __iomem *reg = acb->pmuA;
2280 outbound_doorbell = readl(&reg->outbound_doorbell);
2281 do {
2282 writel(outbound_doorbell, &reg->outbound_doorbell);
2283 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK)
2284 arcmsr_iop2drv_data_wrote_handle(acb);
2285 if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK)
2286 arcmsr_iop2drv_data_read_handle(acb);
2287 outbound_doorbell = readl(&reg->outbound_doorbell);
2288 } while (outbound_doorbell & (ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK
2289 | ARCMSR_OUTBOUND_IOP331_DATA_READ_OK));
2290 }
2291 static void arcmsr_hbaC_doorbell_isr(struct AdapterControlBlock *pACB)
2292 {
2293 uint32_t outbound_doorbell;
2294 struct MessageUnit_C __iomem *reg = pACB->pmuC;
2295 /*
2296 *******************************************************************
2297 ** Maybe here we need to check wrqbuffer_lock is lock or not
2298 ** DOORBELL: din! don!
2299 ** check if there are any mail need to pack from firmware
2300 *******************************************************************
2301 */
2302 outbound_doorbell = readl(&reg->outbound_doorbell);
2303 do {
2304 writel(outbound_doorbell, &reg->outbound_doorbell_clear);
2305 readl(&reg->outbound_doorbell_clear);
2306 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK)
2307 arcmsr_iop2drv_data_wrote_handle(pACB);
2308 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK)
2309 arcmsr_iop2drv_data_read_handle(pACB);
2310 if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE)
2311 arcmsr_hbaC_message_isr(pACB);
2312 outbound_doorbell = readl(&reg->outbound_doorbell);
2313 } while (outbound_doorbell & (ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK
2314 | ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK
2315 | ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE));
2316 }
2317
2318 static void arcmsr_hbaD_doorbell_isr(struct AdapterControlBlock *pACB)
2319 {
2320 uint32_t outbound_doorbell;
2321 struct MessageUnit_D *pmu = pACB->pmuD;
2322
2323 outbound_doorbell = readl(pmu->outbound_doorbell);
2324 do {
2325 writel(outbound_doorbell, pmu->outbound_doorbell);
2326 if (outbound_doorbell & ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE)
2327 arcmsr_hbaD_message_isr(pACB);
2328 if (outbound_doorbell & ARCMSR_ARC1214_IOP2DRV_DATA_WRITE_OK)
2329 arcmsr_iop2drv_data_wrote_handle(pACB);
2330 if (outbound_doorbell & ARCMSR_ARC1214_IOP2DRV_DATA_READ_OK)
2331 arcmsr_iop2drv_data_read_handle(pACB);
2332 outbound_doorbell = readl(pmu->outbound_doorbell);
2333 } while (outbound_doorbell & (ARCMSR_ARC1214_IOP2DRV_DATA_WRITE_OK
2334 | ARCMSR_ARC1214_IOP2DRV_DATA_READ_OK
2335 | ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE));
2336 }
2337
2338 static void arcmsr_hbaE_doorbell_isr(struct AdapterControlBlock *pACB)
2339 {
2340 uint32_t outbound_doorbell, in_doorbell, tmp;
2341 struct MessageUnit_E __iomem *reg = pACB->pmuE;
2342
2343 in_doorbell = readl(&reg->iobound_doorbell);
2344 outbound_doorbell = in_doorbell ^ pACB->in_doorbell;
2345 do {
2346 writel(0, &reg->host_int_status); /* clear interrupt */
2347 if (outbound_doorbell & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
2348 arcmsr_iop2drv_data_wrote_handle(pACB);
2349 }
2350 if (outbound_doorbell & ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK) {
2351 arcmsr_iop2drv_data_read_handle(pACB);
2352 }
2353 if (outbound_doorbell & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
2354 arcmsr_hbaE_message_isr(pACB);
2355 }
2356 tmp = in_doorbell;
2357 in_doorbell = readl(&reg->iobound_doorbell);
2358 outbound_doorbell = tmp ^ in_doorbell;
2359 } while (outbound_doorbell & (ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK
2360 | ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK
2361 | ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE));
2362 pACB->in_doorbell = in_doorbell;
2363 }
2364
2365 static void arcmsr_hbaA_postqueue_isr(struct AdapterControlBlock *acb)
2366 {
2367 uint32_t flag_ccb;
2368 struct MessageUnit_A __iomem *reg = acb->pmuA;
2369 struct ARCMSR_CDB *pARCMSR_CDB;
2370 struct CommandControlBlock *pCCB;
2371 bool error;
2372 unsigned long cdb_phy_addr;
2373
2374 while ((flag_ccb = readl(&reg->outbound_queueport)) != 0xFFFFFFFF) {
2375 cdb_phy_addr = (flag_ccb << 5) & 0xffffffff;
2376 if (acb->cdb_phyadd_hipart)
2377 cdb_phy_addr = cdb_phy_addr | acb->cdb_phyadd_hipart;
2378 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + cdb_phy_addr);
2379 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
2380 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
2381 arcmsr_drain_donequeue(acb, pCCB, error);
2382 }
2383 }
2384 static void arcmsr_hbaB_postqueue_isr(struct AdapterControlBlock *acb)
2385 {
2386 uint32_t index;
2387 uint32_t flag_ccb;
2388 struct MessageUnit_B *reg = acb->pmuB;
2389 struct ARCMSR_CDB *pARCMSR_CDB;
2390 struct CommandControlBlock *pCCB;
2391 bool error;
2392 unsigned long cdb_phy_addr;
2393
2394 index = reg->doneq_index;
2395 while ((flag_ccb = reg->done_qbuffer[index]) != 0) {
2396 cdb_phy_addr = (flag_ccb << 5) & 0xffffffff;
2397 if (acb->cdb_phyadd_hipart)
2398 cdb_phy_addr = cdb_phy_addr | acb->cdb_phyadd_hipart;
2399 pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + cdb_phy_addr);
2400 pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
2401 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
2402 arcmsr_drain_donequeue(acb, pCCB, error);
2403 reg->done_qbuffer[index] = 0;
2404 index++;
2405 index %= ARCMSR_MAX_HBB_POSTQUEUE;
2406 reg->doneq_index = index;
2407 }
2408 }
2409
2410 static void arcmsr_hbaC_postqueue_isr(struct AdapterControlBlock *acb)
2411 {
2412 struct MessageUnit_C __iomem *phbcmu;
2413 struct ARCMSR_CDB *arcmsr_cdb;
2414 struct CommandControlBlock *ccb;
2415 uint32_t flag_ccb, throttling = 0;
2416 unsigned long ccb_cdb_phy;
2417 int error;
2418
2419 phbcmu = acb->pmuC;
2420 /* areca cdb command done */
2421 /* Use correct offset and size for syncing */
2422
2423 while ((flag_ccb = readl(&phbcmu->outbound_queueport_low)) !=
2424 0xFFFFFFFF) {
2425 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
2426 if (acb->cdb_phyadd_hipart)
2427 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
2428 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset
2429 + ccb_cdb_phy);
2430 ccb = container_of(arcmsr_cdb, struct CommandControlBlock,
2431 arcmsr_cdb);
2432 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1)
2433 ? true : false;
2434 /* check if command done with no error */
2435 arcmsr_drain_donequeue(acb, ccb, error);
2436 throttling++;
2437 if (throttling == ARCMSR_HBC_ISR_THROTTLING_LEVEL) {
2438 writel(ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING,
2439 &phbcmu->inbound_doorbell);
2440 throttling = 0;
2441 }
2442 }
2443 }
2444
2445 static void arcmsr_hbaD_postqueue_isr(struct AdapterControlBlock *acb)
2446 {
2447 u32 outbound_write_pointer, doneq_index, index_stripped, toggle;
2448 uint32_t addressLow;
2449 int error;
2450 struct MessageUnit_D *pmu;
2451 struct ARCMSR_CDB *arcmsr_cdb;
2452 struct CommandControlBlock *ccb;
2453 unsigned long flags, ccb_cdb_phy, cdb_phy_hipart;
2454
2455 spin_lock_irqsave(&acb->doneq_lock, flags);
2456 pmu = acb->pmuD;
2457 outbound_write_pointer = pmu->done_qbuffer[0].addressLow + 1;
2458 doneq_index = pmu->doneq_index;
2459 if ((doneq_index & 0xFFF) != (outbound_write_pointer & 0xFFF)) {
2460 do {
2461 toggle = doneq_index & 0x4000;
2462 index_stripped = (doneq_index & 0xFFF) + 1;
2463 index_stripped %= ARCMSR_MAX_ARC1214_DONEQUEUE;
2464 pmu->doneq_index = index_stripped ? (index_stripped | toggle) :
2465 ((toggle ^ 0x4000) + 1);
2466 doneq_index = pmu->doneq_index;
2467 cdb_phy_hipart = pmu->done_qbuffer[doneq_index &
2468 0xFFF].addressHigh;
2469 addressLow = pmu->done_qbuffer[doneq_index &
2470 0xFFF].addressLow;
2471 ccb_cdb_phy = (addressLow & 0xFFFFFFF0);
2472 if (acb->cdb_phyadd_hipart)
2473 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
2474 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset
2475 + ccb_cdb_phy);
2476 ccb = container_of(arcmsr_cdb,
2477 struct CommandControlBlock, arcmsr_cdb);
2478 error = (addressLow & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1)
2479 ? true : false;
2480 arcmsr_drain_donequeue(acb, ccb, error);
2481 writel(doneq_index, pmu->outboundlist_read_pointer);
2482 } while ((doneq_index & 0xFFF) !=
2483 (outbound_write_pointer & 0xFFF));
2484 }
2485 writel(ARCMSR_ARC1214_OUTBOUND_LIST_INTERRUPT_CLEAR,
2486 pmu->outboundlist_interrupt_cause);
2487 readl(pmu->outboundlist_interrupt_cause);
2488 spin_unlock_irqrestore(&acb->doneq_lock, flags);
2489 }
2490
2491 static void arcmsr_hbaE_postqueue_isr(struct AdapterControlBlock *acb)
2492 {
2493 uint32_t doneq_index;
2494 uint16_t cmdSMID;
2495 int error;
2496 struct MessageUnit_E __iomem *pmu;
2497 struct CommandControlBlock *ccb;
2498 unsigned long flags;
2499
2500 spin_lock_irqsave(&acb->doneq_lock, flags);
2501 doneq_index = acb->doneq_index;
2502 pmu = acb->pmuE;
2503 while ((readl(&pmu->reply_post_producer_index) & 0xFFFF) != doneq_index) {
2504 cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
2505 ccb = acb->pccb_pool[cmdSMID];
2506 error = (acb->pCompletionQ[doneq_index].cmdFlag
2507 & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
2508 arcmsr_drain_donequeue(acb, ccb, error);
2509 doneq_index++;
2510 if (doneq_index >= acb->completionQ_entry)
2511 doneq_index = 0;
2512 }
2513 acb->doneq_index = doneq_index;
2514 writel(doneq_index, &pmu->reply_post_consumer_index);
2515 spin_unlock_irqrestore(&acb->doneq_lock, flags);
2516 }
2517
2518 /*
2519 **********************************************************************************
2520 ** Handle a message interrupt
2521 **
2522 ** The only message interrupt we expect is in response to a query for the current adapter config.
2523 ** We want this in order to compare the drivemap so that we can detect newly-attached drives.
2524 **********************************************************************************
2525 */
2526 static void arcmsr_hbaA_message_isr(struct AdapterControlBlock *acb)
2527 {
2528 struct MessageUnit_A __iomem *reg = acb->pmuA;
2529 /*clear interrupt and message state*/
2530 writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, &reg->outbound_intstatus);
2531 if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
2532 schedule_work(&acb->arcmsr_do_message_isr_bh);
2533 }
2534 static void arcmsr_hbaB_message_isr(struct AdapterControlBlock *acb)
2535 {
2536 struct MessageUnit_B *reg = acb->pmuB;
2537
2538 /*clear interrupt and message state*/
2539 writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
2540 if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
2541 schedule_work(&acb->arcmsr_do_message_isr_bh);
2542 }
2543 /*
2544 **********************************************************************************
2545 ** Handle a message interrupt
2546 **
2547 ** The only message interrupt we expect is in response to a query for the
2548 ** current adapter config.
2549 ** We want this in order to compare the drivemap so that we can detect newly-attached drives.
2550 **********************************************************************************
2551 */
2552 static void arcmsr_hbaC_message_isr(struct AdapterControlBlock *acb)
2553 {
2554 struct MessageUnit_C __iomem *reg = acb->pmuC;
2555 /*clear interrupt and message state*/
2556 writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &reg->outbound_doorbell_clear);
2557 if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
2558 schedule_work(&acb->arcmsr_do_message_isr_bh);
2559 }
2560
2561 static void arcmsr_hbaD_message_isr(struct AdapterControlBlock *acb)
2562 {
2563 struct MessageUnit_D *reg = acb->pmuD;
2564
2565 writel(ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE, reg->outbound_doorbell);
2566 readl(reg->outbound_doorbell);
2567 if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
2568 schedule_work(&acb->arcmsr_do_message_isr_bh);
2569 }
2570
2571 static void arcmsr_hbaE_message_isr(struct AdapterControlBlock *acb)
2572 {
2573 struct MessageUnit_E __iomem *reg = acb->pmuE;
2574
2575 writel(0, &reg->host_int_status);
2576 if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
2577 schedule_work(&acb->arcmsr_do_message_isr_bh);
2578 }
2579
2580 static int arcmsr_hbaA_handle_isr(struct AdapterControlBlock *acb)
2581 {
2582 uint32_t outbound_intstatus;
2583 struct MessageUnit_A __iomem *reg = acb->pmuA;
2584 outbound_intstatus = readl(&reg->outbound_intstatus) &
2585 acb->outbound_int_enable;
2586 if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT))
2587 return IRQ_NONE;
2588 do {
2589 writel(outbound_intstatus, &reg->outbound_intstatus);
2590 if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT)
2591 arcmsr_hbaA_doorbell_isr(acb);
2592 if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT)
2593 arcmsr_hbaA_postqueue_isr(acb);
2594 if (outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT)
2595 arcmsr_hbaA_message_isr(acb);
2596 outbound_intstatus = readl(&reg->outbound_intstatus) &
2597 acb->outbound_int_enable;
2598 } while (outbound_intstatus & (ARCMSR_MU_OUTBOUND_DOORBELL_INT
2599 | ARCMSR_MU_OUTBOUND_POSTQUEUE_INT
2600 | ARCMSR_MU_OUTBOUND_MESSAGE0_INT));
2601 return IRQ_HANDLED;
2602 }
2603
2604 static int arcmsr_hbaB_handle_isr(struct AdapterControlBlock *acb)
2605 {
2606 uint32_t outbound_doorbell;
2607 struct MessageUnit_B *reg = acb->pmuB;
2608 outbound_doorbell = readl(reg->iop2drv_doorbell) &
2609 acb->outbound_int_enable;
2610 if (!outbound_doorbell)
2611 return IRQ_NONE;
2612 do {
2613 writel(~outbound_doorbell, reg->iop2drv_doorbell);
2614 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
2615 if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK)
2616 arcmsr_iop2drv_data_wrote_handle(acb);
2617 if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK)
2618 arcmsr_iop2drv_data_read_handle(acb);
2619 if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE)
2620 arcmsr_hbaB_postqueue_isr(acb);
2621 if (outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE)
2622 arcmsr_hbaB_message_isr(acb);
2623 outbound_doorbell = readl(reg->iop2drv_doorbell) &
2624 acb->outbound_int_enable;
2625 } while (outbound_doorbell & (ARCMSR_IOP2DRV_DATA_WRITE_OK
2626 | ARCMSR_IOP2DRV_DATA_READ_OK
2627 | ARCMSR_IOP2DRV_CDB_DONE
2628 | ARCMSR_IOP2DRV_MESSAGE_CMD_DONE));
2629 return IRQ_HANDLED;
2630 }
2631
2632 static int arcmsr_hbaC_handle_isr(struct AdapterControlBlock *pACB)
2633 {
2634 uint32_t host_interrupt_status;
2635 struct MessageUnit_C __iomem *phbcmu = pACB->pmuC;
2636 /*
2637 *********************************************
2638 ** check outbound intstatus
2639 *********************************************
2640 */
2641 host_interrupt_status = readl(&phbcmu->host_int_status) &
2642 (ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
2643 ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR);
2644 if (!host_interrupt_status)
2645 return IRQ_NONE;
2646 do {
2647 if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR)
2648 arcmsr_hbaC_doorbell_isr(pACB);
2649 /* MU post queue interrupts*/
2650 if (host_interrupt_status & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR)
2651 arcmsr_hbaC_postqueue_isr(pACB);
2652 host_interrupt_status = readl(&phbcmu->host_int_status);
2653 } while (host_interrupt_status & (ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR |
2654 ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR));
2655 return IRQ_HANDLED;
2656 }
2657
2658 static irqreturn_t arcmsr_hbaD_handle_isr(struct AdapterControlBlock *pACB)
2659 {
2660 u32 host_interrupt_status;
2661 struct MessageUnit_D *pmu = pACB->pmuD;
2662
2663 host_interrupt_status = readl(pmu->host_int_status) &
2664 (ARCMSR_ARC1214_OUTBOUND_POSTQUEUE_ISR |
2665 ARCMSR_ARC1214_OUTBOUND_DOORBELL_ISR);
2666 if (!host_interrupt_status)
2667 return IRQ_NONE;
2668 do {
2669 /* MU post queue interrupts*/
2670 if (host_interrupt_status &
2671 ARCMSR_ARC1214_OUTBOUND_POSTQUEUE_ISR)
2672 arcmsr_hbaD_postqueue_isr(pACB);
2673 if (host_interrupt_status &
2674 ARCMSR_ARC1214_OUTBOUND_DOORBELL_ISR)
2675 arcmsr_hbaD_doorbell_isr(pACB);
2676 host_interrupt_status = readl(pmu->host_int_status);
2677 } while (host_interrupt_status &
2678 (ARCMSR_ARC1214_OUTBOUND_POSTQUEUE_ISR |
2679 ARCMSR_ARC1214_OUTBOUND_DOORBELL_ISR));
2680 return IRQ_HANDLED;
2681 }
2682
2683 static irqreturn_t arcmsr_hbaE_handle_isr(struct AdapterControlBlock *pACB)
2684 {
2685 uint32_t host_interrupt_status;
2686 struct MessageUnit_E __iomem *pmu = pACB->pmuE;
2687
2688 host_interrupt_status = readl(&pmu->host_int_status) &
2689 (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
2690 ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
2691 if (!host_interrupt_status)
2692 return IRQ_NONE;
2693 do {
2694 /* MU ioctl transfer doorbell interrupts*/
2695 if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR) {
2696 arcmsr_hbaE_doorbell_isr(pACB);
2697 }
2698 /* MU post queue interrupts*/
2699 if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR) {
2700 arcmsr_hbaE_postqueue_isr(pACB);
2701 }
2702 host_interrupt_status = readl(&pmu->host_int_status);
2703 } while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
2704 ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
2705 return IRQ_HANDLED;
2706 }
2707
2708 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
2709 {
2710 switch (acb->adapter_type) {
2711 case ACB_ADAPTER_TYPE_A:
2712 return arcmsr_hbaA_handle_isr(acb);
2713 break;
2714 case ACB_ADAPTER_TYPE_B:
2715 return arcmsr_hbaB_handle_isr(acb);
2716 break;
2717 case ACB_ADAPTER_TYPE_C:
2718 return arcmsr_hbaC_handle_isr(acb);
2719 case ACB_ADAPTER_TYPE_D:
2720 return arcmsr_hbaD_handle_isr(acb);
2721 case ACB_ADAPTER_TYPE_E:
2722 return arcmsr_hbaE_handle_isr(acb);
2723 default:
2724 return IRQ_NONE;
2725 }
2726 }
2727
2728 static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
2729 {
2730 if (acb) {
2731 /* stop adapter background rebuild */
2732 if (acb->acb_flags & ACB_F_MSG_START_BGRB) {
2733 uint32_t intmask_org;
2734 acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
2735 intmask_org = arcmsr_disable_outbound_ints(acb);
2736 arcmsr_stop_adapter_bgrb(acb);
2737 arcmsr_flush_adapter_cache(acb);
2738 arcmsr_enable_outbound_ints(acb, intmask_org);
2739 }
2740 }
2741 }
2742
2743
2744 void arcmsr_clear_iop2drv_rqueue_buffer(struct AdapterControlBlock *acb)
2745 {
2746 uint32_t i;
2747
2748 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2749 for (i = 0; i < 15; i++) {
2750 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2751 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2752 acb->rqbuf_getIndex = 0;
2753 acb->rqbuf_putIndex = 0;
2754 arcmsr_iop_message_read(acb);
2755 mdelay(30);
2756 } else if (acb->rqbuf_getIndex !=
2757 acb->rqbuf_putIndex) {
2758 acb->rqbuf_getIndex = 0;
2759 acb->rqbuf_putIndex = 0;
2760 mdelay(30);
2761 } else
2762 break;
2763 }
2764 }
2765 }
2766
2767 static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
2768 struct scsi_cmnd *cmd)
2769 {
2770 char *buffer;
2771 unsigned short use_sg;
2772 int retvalue = 0, transfer_len = 0;
2773 unsigned long flags;
2774 struct CMD_MESSAGE_FIELD *pcmdmessagefld;
2775 uint32_t controlcode = (uint32_t)cmd->cmnd[5] << 24 |
2776 (uint32_t)cmd->cmnd[6] << 16 |
2777 (uint32_t)cmd->cmnd[7] << 8 |
2778 (uint32_t)cmd->cmnd[8];
2779 struct scatterlist *sg;
2780
2781 use_sg = scsi_sg_count(cmd);
2782 sg = scsi_sglist(cmd);
2783 buffer = kmap_atomic(sg_page(sg)) + sg->offset;
2784 if (use_sg > 1) {
2785 retvalue = ARCMSR_MESSAGE_FAIL;
2786 goto message_out;
2787 }
2788 transfer_len += sg->length;
2789 if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
2790 retvalue = ARCMSR_MESSAGE_FAIL;
2791 pr_info("%s: ARCMSR_MESSAGE_FAIL!\n", __func__);
2792 goto message_out;
2793 }
2794 pcmdmessagefld = (struct CMD_MESSAGE_FIELD *)buffer;
2795 switch (controlcode) {
2796 case ARCMSR_MESSAGE_READ_RQBUFFER: {
2797 unsigned char *ver_addr;
2798 uint8_t *ptmpQbuffer;
2799 uint32_t allxfer_len = 0;
2800 ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC);
2801 if (!ver_addr) {
2802 retvalue = ARCMSR_MESSAGE_FAIL;
2803 pr_info("%s: memory not enough!\n", __func__);
2804 goto message_out;
2805 }
2806 ptmpQbuffer = ver_addr;
2807 spin_lock_irqsave(&acb->rqbuffer_lock, flags);
2808 if (acb->rqbuf_getIndex != acb->rqbuf_putIndex) {
2809 unsigned int tail = acb->rqbuf_getIndex;
2810 unsigned int head = acb->rqbuf_putIndex;
2811 unsigned int cnt_to_end = CIRC_CNT_TO_END(head, tail, ARCMSR_MAX_QBUFFER);
2812
2813 allxfer_len = CIRC_CNT(head, tail, ARCMSR_MAX_QBUFFER);
2814 if (allxfer_len > ARCMSR_API_DATA_BUFLEN)
2815 allxfer_len = ARCMSR_API_DATA_BUFLEN;
2816
2817 if (allxfer_len <= cnt_to_end)
2818 memcpy(ptmpQbuffer, acb->rqbuffer + tail, allxfer_len);
2819 else {
2820 memcpy(ptmpQbuffer, acb->rqbuffer + tail, cnt_to_end);
2821 memcpy(ptmpQbuffer + cnt_to_end, acb->rqbuffer, allxfer_len - cnt_to_end);
2822 }
2823 acb->rqbuf_getIndex = (acb->rqbuf_getIndex + allxfer_len) % ARCMSR_MAX_QBUFFER;
2824 }
2825 memcpy(pcmdmessagefld->messagedatabuffer, ver_addr,
2826 allxfer_len);
2827 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
2828 struct QBUFFER __iomem *prbuffer;
2829 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
2830 prbuffer = arcmsr_get_iop_rqbuffer(acb);
2831 if (arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
2832 acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
2833 }
2834 spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
2835 kfree(ver_addr);
2836 pcmdmessagefld->cmdmessage.Length = allxfer_len;
2837 if (acb->fw_flag == FW_DEADLOCK)
2838 pcmdmessagefld->cmdmessage.ReturnCode =
2839 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
2840 else
2841 pcmdmessagefld->cmdmessage.ReturnCode =
2842 ARCMSR_MESSAGE_RETURNCODE_OK;
2843 break;
2844 }
2845 case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
2846 unsigned char *ver_addr;
2847 uint32_t user_len;
2848 int32_t cnt2end;
2849 uint8_t *pQbuffer, *ptmpuserbuffer;
2850
2851 user_len = pcmdmessagefld->cmdmessage.Length;
2852 if (user_len > ARCMSR_API_DATA_BUFLEN) {
2853 retvalue = ARCMSR_MESSAGE_FAIL;
2854 goto message_out;
2855 }
2856
2857 ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC);
2858 if (!ver_addr) {
2859 retvalue = ARCMSR_MESSAGE_FAIL;
2860 goto message_out;
2861 }
2862 ptmpuserbuffer = ver_addr;
2863
2864 memcpy(ptmpuserbuffer,
2865 pcmdmessagefld->messagedatabuffer, user_len);
2866 spin_lock_irqsave(&acb->wqbuffer_lock, flags);
2867 if (acb->wqbuf_putIndex != acb->wqbuf_getIndex) {
2868 struct SENSE_DATA *sensebuffer =
2869 (struct SENSE_DATA *)cmd->sense_buffer;
2870 arcmsr_write_ioctldata2iop(acb);
2871 /* has error report sensedata */
2872 sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
2873 sensebuffer->SenseKey = ILLEGAL_REQUEST;
2874 sensebuffer->AdditionalSenseLength = 0x0A;
2875 sensebuffer->AdditionalSenseCode = 0x20;
2876 sensebuffer->Valid = 1;
2877 retvalue = ARCMSR_MESSAGE_FAIL;
2878 } else {
2879 pQbuffer = &acb->wqbuffer[acb->wqbuf_putIndex];
2880 cnt2end = ARCMSR_MAX_QBUFFER - acb->wqbuf_putIndex;
2881 if (user_len > cnt2end) {
2882 memcpy(pQbuffer, ptmpuserbuffer, cnt2end);
2883 ptmpuserbuffer += cnt2end;
2884 user_len -= cnt2end;
2885 acb->wqbuf_putIndex = 0;
2886 pQbuffer = acb->wqbuffer;
2887 }
2888 memcpy(pQbuffer, ptmpuserbuffer, user_len);
2889 acb->wqbuf_putIndex += user_len;
2890 acb->wqbuf_putIndex %= ARCMSR_MAX_QBUFFER;
2891 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
2892 acb->acb_flags &=
2893 ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
2894 arcmsr_write_ioctldata2iop(acb);
2895 }
2896 }
2897 spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
2898 kfree(ver_addr);
2899 if (acb->fw_flag == FW_DEADLOCK)
2900 pcmdmessagefld->cmdmessage.ReturnCode =
2901 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
2902 else
2903 pcmdmessagefld->cmdmessage.ReturnCode =
2904 ARCMSR_MESSAGE_RETURNCODE_OK;
2905 break;
2906 }
2907 case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
2908 uint8_t *pQbuffer = acb->rqbuffer;
2909
2910 arcmsr_clear_iop2drv_rqueue_buffer(acb);
2911 spin_lock_irqsave(&acb->rqbuffer_lock, flags);
2912 acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2913 acb->rqbuf_getIndex = 0;
2914 acb->rqbuf_putIndex = 0;
2915 memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2916 spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
2917 if (acb->fw_flag == FW_DEADLOCK)
2918 pcmdmessagefld->cmdmessage.ReturnCode =
2919 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
2920 else
2921 pcmdmessagefld->cmdmessage.ReturnCode =
2922 ARCMSR_MESSAGE_RETURNCODE_OK;
2923 break;
2924 }
2925 case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
2926 uint8_t *pQbuffer = acb->wqbuffer;
2927 spin_lock_irqsave(&acb->wqbuffer_lock, flags);
2928 acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
2929 ACB_F_MESSAGE_WQBUFFER_READED);
2930 acb->wqbuf_getIndex = 0;
2931 acb->wqbuf_putIndex = 0;
2932 memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
2933 spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
2934 if (acb->fw_flag == FW_DEADLOCK)
2935 pcmdmessagefld->cmdmessage.ReturnCode =
2936 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
2937 else
2938 pcmdmessagefld->cmdmessage.ReturnCode =
2939 ARCMSR_MESSAGE_RETURNCODE_OK;
2940 break;
2941 }
2942 case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
2943 uint8_t *pQbuffer;
2944 arcmsr_clear_iop2drv_rqueue_buffer(acb);
2945 spin_lock_irqsave(&acb->rqbuffer_lock, flags);
2946 acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
2947 acb->rqbuf_getIndex = 0;
2948 acb->rqbuf_putIndex = 0;
2949 pQbuffer = acb->rqbuffer;
2950 memset(pQbuffer, 0, sizeof(struct QBUFFER));
2951 spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
2952 spin_lock_irqsave(&acb->wqbuffer_lock, flags);
2953 acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
2954 ACB_F_MESSAGE_WQBUFFER_READED);
2955 acb->wqbuf_getIndex = 0;
2956 acb->wqbuf_putIndex = 0;
2957 pQbuffer = acb->wqbuffer;
2958 memset(pQbuffer, 0, sizeof(struct QBUFFER));
2959 spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
2960 if (acb->fw_flag == FW_DEADLOCK)
2961 pcmdmessagefld->cmdmessage.ReturnCode =
2962 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
2963 else
2964 pcmdmessagefld->cmdmessage.ReturnCode =
2965 ARCMSR_MESSAGE_RETURNCODE_OK;
2966 break;
2967 }
2968 case ARCMSR_MESSAGE_RETURN_CODE_3F: {
2969 if (acb->fw_flag == FW_DEADLOCK)
2970 pcmdmessagefld->cmdmessage.ReturnCode =
2971 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
2972 else
2973 pcmdmessagefld->cmdmessage.ReturnCode =
2974 ARCMSR_MESSAGE_RETURNCODE_3F;
2975 break;
2976 }
2977 case ARCMSR_MESSAGE_SAY_HELLO: {
2978 int8_t *hello_string = "Hello! I am ARCMSR";
2979 if (acb->fw_flag == FW_DEADLOCK)
2980 pcmdmessagefld->cmdmessage.ReturnCode =
2981 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
2982 else
2983 pcmdmessagefld->cmdmessage.ReturnCode =
2984 ARCMSR_MESSAGE_RETURNCODE_OK;
2985 memcpy(pcmdmessagefld->messagedatabuffer,
2986 hello_string, (int16_t)strlen(hello_string));
2987 break;
2988 }
2989 case ARCMSR_MESSAGE_SAY_GOODBYE: {
2990 if (acb->fw_flag == FW_DEADLOCK)
2991 pcmdmessagefld->cmdmessage.ReturnCode =
2992 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
2993 else
2994 pcmdmessagefld->cmdmessage.ReturnCode =
2995 ARCMSR_MESSAGE_RETURNCODE_OK;
2996 arcmsr_iop_parking(acb);
2997 break;
2998 }
2999 case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
3000 if (acb->fw_flag == FW_DEADLOCK)
3001 pcmdmessagefld->cmdmessage.ReturnCode =
3002 ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
3003 else
3004 pcmdmessagefld->cmdmessage.ReturnCode =
3005 ARCMSR_MESSAGE_RETURNCODE_OK;
3006 arcmsr_flush_adapter_cache(acb);
3007 break;
3008 }
3009 default:
3010 retvalue = ARCMSR_MESSAGE_FAIL;
3011 pr_info("%s: unknown controlcode!\n", __func__);
3012 }
3013 message_out:
3014 if (use_sg) {
3015 struct scatterlist *sg = scsi_sglist(cmd);
3016 kunmap_atomic(buffer - sg->offset);
3017 }
3018 return retvalue;
3019 }
3020
3021 static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb)
3022 {
3023 struct list_head *head = &acb->ccb_free_list;
3024 struct CommandControlBlock *ccb = NULL;
3025 unsigned long flags;
3026 spin_lock_irqsave(&acb->ccblist_lock, flags);
3027 if (!list_empty(head)) {
3028 ccb = list_entry(head->next, struct CommandControlBlock, list);
3029 list_del_init(&ccb->list);
3030 }else{
3031 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
3032 return NULL;
3033 }
3034 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
3035 return ccb;
3036 }
3037
3038 static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
3039 struct scsi_cmnd *cmd)
3040 {
3041 switch (cmd->cmnd[0]) {
3042 case INQUIRY: {
3043 unsigned char inqdata[36];
3044 char *buffer;
3045 struct scatterlist *sg;
3046
3047 if (cmd->device->lun) {
3048 cmd->result = (DID_TIME_OUT << 16);
3049 cmd->scsi_done(cmd);
3050 return;
3051 }
3052 inqdata[0] = TYPE_PROCESSOR;
3053 /* Periph Qualifier & Periph Dev Type */
3054 inqdata[1] = 0;
3055 /* rem media bit & Dev Type Modifier */
3056 inqdata[2] = 0;
3057 /* ISO, ECMA, & ANSI versions */
3058 inqdata[4] = 31;
3059 /* length of additional data */
3060 strncpy(&inqdata[8], "Areca ", 8);
3061 /* Vendor Identification */
3062 strncpy(&inqdata[16], "RAID controller ", 16);
3063 /* Product Identification */
3064 strncpy(&inqdata[32], "R001", 4); /* Product Revision */
3065
3066 sg = scsi_sglist(cmd);
3067 buffer = kmap_atomic(sg_page(sg)) + sg->offset;
3068
3069 memcpy(buffer, inqdata, sizeof(inqdata));
3070 sg = scsi_sglist(cmd);
3071 kunmap_atomic(buffer - sg->offset);
3072
3073 cmd->scsi_done(cmd);
3074 }
3075 break;
3076 case WRITE_BUFFER:
3077 case READ_BUFFER: {
3078 if (arcmsr_iop_message_xfer(acb, cmd))
3079 cmd->result = (DID_ERROR << 16);
3080 cmd->scsi_done(cmd);
3081 }
3082 break;
3083 default:
3084 cmd->scsi_done(cmd);
3085 }
3086 }
3087
3088 static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
3089 void (* done)(struct scsi_cmnd *))
3090 {
3091 struct Scsi_Host *host = cmd->device->host;
3092 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
3093 struct CommandControlBlock *ccb;
3094 int target = cmd->device->id;
3095
3096 if (acb->acb_flags & ACB_F_ADAPTER_REMOVED) {
3097 cmd->result = (DID_NO_CONNECT << 16);
3098 cmd->scsi_done(cmd);
3099 return 0;
3100 }
3101 cmd->scsi_done = done;
3102 cmd->host_scribble = NULL;
3103 cmd->result = 0;
3104 if (target == 16) {
3105 /* virtual device for iop message transfer */
3106 arcmsr_handle_virtual_command(acb, cmd);
3107 return 0;
3108 }
3109 ccb = arcmsr_get_freeccb(acb);
3110 if (!ccb)
3111 return SCSI_MLQUEUE_HOST_BUSY;
3112 if (arcmsr_build_ccb( acb, ccb, cmd ) == FAILED) {
3113 cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1);
3114 cmd->scsi_done(cmd);
3115 return 0;
3116 }
3117 arcmsr_post_ccb(acb, ccb);
3118 return 0;
3119 }
3120
3121 static DEF_SCSI_QCMD(arcmsr_queue_command)
3122
3123 static void arcmsr_get_adapter_config(struct AdapterControlBlock *pACB, uint32_t *rwbuffer)
3124 {
3125 int count;
3126 uint32_t *acb_firm_model = (uint32_t *)pACB->firm_model;
3127 uint32_t *acb_firm_version = (uint32_t *)pACB->firm_version;
3128 uint32_t *acb_device_map = (uint32_t *)pACB->device_map;
3129 uint32_t *firm_model = &rwbuffer[15];
3130 uint32_t *firm_version = &rwbuffer[17];
3131 uint32_t *device_map = &rwbuffer[21];
3132
3133 count = 2;
3134 while (count) {
3135 *acb_firm_model = readl(firm_model);
3136 acb_firm_model++;
3137 firm_model++;
3138 count--;
3139 }
3140 count = 4;
3141 while (count) {
3142 *acb_firm_version = readl(firm_version);
3143 acb_firm_version++;
3144 firm_version++;
3145 count--;
3146 }
3147 count = 4;
3148 while (count) {
3149 *acb_device_map = readl(device_map);
3150 acb_device_map++;
3151 device_map++;
3152 count--;
3153 }
3154 pACB->signature = readl(&rwbuffer[0]);
3155 pACB->firm_request_len = readl(&rwbuffer[1]);
3156 pACB->firm_numbers_queue = readl(&rwbuffer[2]);
3157 pACB->firm_sdram_size = readl(&rwbuffer[3]);
3158 pACB->firm_hd_channels = readl(&rwbuffer[4]);
3159 pACB->firm_cfg_version = readl(&rwbuffer[25]);
3160 pr_notice("Areca RAID Controller%d: Model %s, F/W %s\n",
3161 pACB->host->host_no,
3162 pACB->firm_model,
3163 pACB->firm_version);
3164 }
3165
3166 static bool arcmsr_hbaA_get_config(struct AdapterControlBlock *acb)
3167 {
3168 struct MessageUnit_A __iomem *reg = acb->pmuA;
3169
3170 arcmsr_wait_firmware_ready(acb);
3171 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
3172 if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
3173 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
3174 miscellaneous data' timeout \n", acb->host->host_no);
3175 return false;
3176 }
3177 arcmsr_get_adapter_config(acb, reg->message_rwbuffer);
3178 return true;
3179 }
3180 static bool arcmsr_hbaB_get_config(struct AdapterControlBlock *acb)
3181 {
3182 struct MessageUnit_B *reg = acb->pmuB;
3183
3184 arcmsr_wait_firmware_ready(acb);
3185 writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
3186 if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
3187 printk(KERN_ERR "arcmsr%d: can't set driver mode.\n", acb->host->host_no);
3188 return false;
3189 }
3190 writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
3191 if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
3192 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
3193 miscellaneous data' timeout \n", acb->host->host_no);
3194 return false;
3195 }
3196 arcmsr_get_adapter_config(acb, reg->message_rwbuffer);
3197 return true;
3198 }
3199
3200 static bool arcmsr_hbaC_get_config(struct AdapterControlBlock *pACB)
3201 {
3202 uint32_t intmask_org;
3203 struct MessageUnit_C __iomem *reg = pACB->pmuC;
3204
3205 /* disable all outbound interrupt */
3206 intmask_org = readl(&reg->host_int_mask); /* disable outbound message0 int */
3207 writel(intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE, &reg->host_int_mask);
3208 /* wait firmware ready */
3209 arcmsr_wait_firmware_ready(pACB);
3210 /* post "get config" instruction */
3211 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
3212 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
3213 /* wait message ready */
3214 if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
3215 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
3216 miscellaneous data' timeout \n", pACB->host->host_no);
3217 return false;
3218 }
3219 arcmsr_get_adapter_config(pACB, reg->msgcode_rwbuffer);
3220 return true;
3221 }
3222
3223 static bool arcmsr_hbaD_get_config(struct AdapterControlBlock *acb)
3224 {
3225 struct MessageUnit_D *reg = acb->pmuD;
3226
3227 if (readl(acb->pmuD->outbound_doorbell) &
3228 ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE) {
3229 writel(ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE,
3230 acb->pmuD->outbound_doorbell);/*clear interrupt*/
3231 }
3232 arcmsr_wait_firmware_ready(acb);
3233 /* post "get config" instruction */
3234 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, reg->inbound_msgaddr0);
3235 /* wait message ready */
3236 if (!arcmsr_hbaD_wait_msgint_ready(acb)) {
3237 pr_notice("arcmsr%d: wait get adapter firmware "
3238 "miscellaneous data timeout\n", acb->host->host_no);
3239 return false;
3240 }
3241 arcmsr_get_adapter_config(acb, reg->msgcode_rwbuffer);
3242 return true;
3243 }
3244
3245 static bool arcmsr_hbaE_get_config(struct AdapterControlBlock *pACB)
3246 {
3247 struct MessageUnit_E __iomem *reg = pACB->pmuE;
3248 uint32_t intmask_org;
3249
3250 /* disable all outbound interrupt */
3251 intmask_org = readl(&reg->host_int_mask); /* disable outbound message0 int */
3252 writel(intmask_org | ARCMSR_HBEMU_ALL_INTMASKENABLE, &reg->host_int_mask);
3253 /* wait firmware ready */
3254 arcmsr_wait_firmware_ready(pACB);
3255 mdelay(20);
3256 /* post "get config" instruction */
3257 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
3258
3259 pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3260 writel(pACB->out_doorbell, &reg->iobound_doorbell);
3261 /* wait message ready */
3262 if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
3263 pr_notice("arcmsr%d: wait get adapter firmware "
3264 "miscellaneous data timeout\n", pACB->host->host_no);
3265 return false;
3266 }
3267 arcmsr_get_adapter_config(pACB, reg->msgcode_rwbuffer);
3268 return true;
3269 }
3270
3271 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
3272 {
3273 bool rtn = false;
3274
3275 switch (acb->adapter_type) {
3276 case ACB_ADAPTER_TYPE_A:
3277 rtn = arcmsr_hbaA_get_config(acb);
3278 break;
3279 case ACB_ADAPTER_TYPE_B:
3280 rtn = arcmsr_hbaB_get_config(acb);
3281 break;
3282 case ACB_ADAPTER_TYPE_C:
3283 rtn = arcmsr_hbaC_get_config(acb);
3284 break;
3285 case ACB_ADAPTER_TYPE_D:
3286 rtn = arcmsr_hbaD_get_config(acb);
3287 break;
3288 case ACB_ADAPTER_TYPE_E:
3289 rtn = arcmsr_hbaE_get_config(acb);
3290 break;
3291 default:
3292 break;
3293 }
3294 acb->maxOutstanding = acb->firm_numbers_queue - 1;
3295 if (acb->host->can_queue >= acb->firm_numbers_queue)
3296 acb->host->can_queue = acb->maxOutstanding;
3297 else
3298 acb->maxOutstanding = acb->host->can_queue;
3299 acb->maxFreeCCB = acb->host->can_queue;
3300 if (acb->maxFreeCCB < ARCMSR_MAX_FREECCB_NUM)
3301 acb->maxFreeCCB += 64;
3302 return rtn;
3303 }
3304
3305 static int arcmsr_hbaA_polling_ccbdone(struct AdapterControlBlock *acb,
3306 struct CommandControlBlock *poll_ccb)
3307 {
3308 struct MessageUnit_A __iomem *reg = acb->pmuA;
3309 struct CommandControlBlock *ccb;
3310 struct ARCMSR_CDB *arcmsr_cdb;
3311 uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0;
3312 int rtn;
3313 bool error;
3314 unsigned long ccb_cdb_phy;
3315
3316 polling_hba_ccb_retry:
3317 poll_count++;
3318 outbound_intstatus = readl(&reg->outbound_intstatus) & acb->outbound_int_enable;
3319 writel(outbound_intstatus, &reg->outbound_intstatus);/*clear interrupt*/
3320 while (1) {
3321 if ((flag_ccb = readl(&reg->outbound_queueport)) == 0xFFFFFFFF) {
3322 if (poll_ccb_done){
3323 rtn = SUCCESS;
3324 break;
3325 }else {
3326 msleep(25);
3327 if (poll_count > 100){
3328 rtn = FAILED;
3329 break;
3330 }
3331 goto polling_hba_ccb_retry;
3332 }
3333 }
3334 ccb_cdb_phy = (flag_ccb << 5) & 0xffffffff;
3335 if (acb->cdb_phyadd_hipart)
3336 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
3337 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
3338 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
3339 poll_ccb_done |= (ccb == poll_ccb) ? 1 : 0;
3340 if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
3341 if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
3342 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
3343 " poll command abort successfully \n"
3344 , acb->host->host_no
3345 , ccb->pcmd->device->id
3346 , (u32)ccb->pcmd->device->lun
3347 , ccb);
3348 ccb->pcmd->result = DID_ABORT << 16;
3349 arcmsr_ccb_complete(ccb);
3350 continue;
3351 }
3352 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
3353 " command done ccb = '0x%p'"
3354 "ccboutstandingcount = %d \n"
3355 , acb->host->host_no
3356 , ccb
3357 , atomic_read(&acb->ccboutstandingcount));
3358 continue;
3359 }
3360 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
3361 arcmsr_report_ccb_state(acb, ccb, error);
3362 }
3363 return rtn;
3364 }
3365
3366 static int arcmsr_hbaB_polling_ccbdone(struct AdapterControlBlock *acb,
3367 struct CommandControlBlock *poll_ccb)
3368 {
3369 struct MessageUnit_B *reg = acb->pmuB;
3370 struct ARCMSR_CDB *arcmsr_cdb;
3371 struct CommandControlBlock *ccb;
3372 uint32_t flag_ccb, poll_ccb_done = 0, poll_count = 0;
3373 int index, rtn;
3374 bool error;
3375 unsigned long ccb_cdb_phy;
3376
3377 polling_hbb_ccb_retry:
3378 poll_count++;
3379 /* clear doorbell interrupt */
3380 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
3381 while(1){
3382 index = reg->doneq_index;
3383 flag_ccb = reg->done_qbuffer[index];
3384 if (flag_ccb == 0) {
3385 if (poll_ccb_done){
3386 rtn = SUCCESS;
3387 break;
3388 }else {
3389 msleep(25);
3390 if (poll_count > 100){
3391 rtn = FAILED;
3392 break;
3393 }
3394 goto polling_hbb_ccb_retry;
3395 }
3396 }
3397 reg->done_qbuffer[index] = 0;
3398 index++;
3399 /*if last index number set it to 0 */
3400 index %= ARCMSR_MAX_HBB_POSTQUEUE;
3401 reg->doneq_index = index;
3402 /* check if command done with no error*/
3403 ccb_cdb_phy = (flag_ccb << 5) & 0xffffffff;
3404 if (acb->cdb_phyadd_hipart)
3405 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
3406 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
3407 ccb = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
3408 poll_ccb_done |= (ccb == poll_ccb) ? 1 : 0;
3409 if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
3410 if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) {
3411 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
3412 " poll command abort successfully \n"
3413 ,acb->host->host_no
3414 ,ccb->pcmd->device->id
3415 ,(u32)ccb->pcmd->device->lun
3416 ,ccb);
3417 ccb->pcmd->result = DID_ABORT << 16;
3418 arcmsr_ccb_complete(ccb);
3419 continue;
3420 }
3421 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
3422 " command done ccb = '0x%p'"
3423 "ccboutstandingcount = %d \n"
3424 , acb->host->host_no
3425 , ccb
3426 , atomic_read(&acb->ccboutstandingcount));
3427 continue;
3428 }
3429 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
3430 arcmsr_report_ccb_state(acb, ccb, error);
3431 }
3432 return rtn;
3433 }
3434
3435 static int arcmsr_hbaC_polling_ccbdone(struct AdapterControlBlock *acb,
3436 struct CommandControlBlock *poll_ccb)
3437 {
3438 struct MessageUnit_C __iomem *reg = acb->pmuC;
3439 uint32_t flag_ccb;
3440 struct ARCMSR_CDB *arcmsr_cdb;
3441 bool error;
3442 struct CommandControlBlock *pCCB;
3443 uint32_t poll_ccb_done = 0, poll_count = 0;
3444 int rtn;
3445 unsigned long ccb_cdb_phy;
3446
3447 polling_hbc_ccb_retry:
3448 poll_count++;
3449 while (1) {
3450 if ((readl(&reg->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) == 0) {
3451 if (poll_ccb_done) {
3452 rtn = SUCCESS;
3453 break;
3454 } else {
3455 msleep(25);
3456 if (poll_count > 100) {
3457 rtn = FAILED;
3458 break;
3459 }
3460 goto polling_hbc_ccb_retry;
3461 }
3462 }
3463 flag_ccb = readl(&reg->outbound_queueport_low);
3464 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
3465 if (acb->cdb_phyadd_hipart)
3466 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
3467 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + ccb_cdb_phy);
3468 pCCB = container_of(arcmsr_cdb, struct CommandControlBlock, arcmsr_cdb);
3469 poll_ccb_done |= (pCCB == poll_ccb) ? 1 : 0;
3470 /* check ifcommand done with no error*/
3471 if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
3472 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
3473 printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'"
3474 " poll command abort successfully \n"
3475 , acb->host->host_no
3476 , pCCB->pcmd->device->id
3477 , (u32)pCCB->pcmd->device->lun
3478 , pCCB);
3479 pCCB->pcmd->result = DID_ABORT << 16;
3480 arcmsr_ccb_complete(pCCB);
3481 continue;
3482 }
3483 printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb"
3484 " command done ccb = '0x%p'"
3485 "ccboutstandingcount = %d \n"
3486 , acb->host->host_no
3487 , pCCB
3488 , atomic_read(&acb->ccboutstandingcount));
3489 continue;
3490 }
3491 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
3492 arcmsr_report_ccb_state(acb, pCCB, error);
3493 }
3494 return rtn;
3495 }
3496
3497 static int arcmsr_hbaD_polling_ccbdone(struct AdapterControlBlock *acb,
3498 struct CommandControlBlock *poll_ccb)
3499 {
3500 bool error;
3501 uint32_t poll_ccb_done = 0, poll_count = 0, flag_ccb;
3502 int rtn, doneq_index, index_stripped, outbound_write_pointer, toggle;
3503 unsigned long flags, ccb_cdb_phy, cdb_phy_hipart;
3504 struct ARCMSR_CDB *arcmsr_cdb;
3505 struct CommandControlBlock *pCCB;
3506 struct MessageUnit_D *pmu = acb->pmuD;
3507
3508 polling_hbaD_ccb_retry:
3509 poll_count++;
3510 while (1) {
3511 spin_lock_irqsave(&acb->doneq_lock, flags);
3512 outbound_write_pointer = pmu->done_qbuffer[0].addressLow + 1;
3513 doneq_index = pmu->doneq_index;
3514 if ((outbound_write_pointer & 0xFFF) == (doneq_index & 0xFFF)) {
3515 spin_unlock_irqrestore(&acb->doneq_lock, flags);
3516 if (poll_ccb_done) {
3517 rtn = SUCCESS;
3518 break;
3519 } else {
3520 msleep(25);
3521 if (poll_count > 40) {
3522 rtn = FAILED;
3523 break;
3524 }
3525 goto polling_hbaD_ccb_retry;
3526 }
3527 }
3528 toggle = doneq_index & 0x4000;
3529 index_stripped = (doneq_index & 0xFFF) + 1;
3530 index_stripped %= ARCMSR_MAX_ARC1214_DONEQUEUE;
3531 pmu->doneq_index = index_stripped ? (index_stripped | toggle) :
3532 ((toggle ^ 0x4000) + 1);
3533 doneq_index = pmu->doneq_index;
3534 spin_unlock_irqrestore(&acb->doneq_lock, flags);
3535 cdb_phy_hipart = pmu->done_qbuffer[doneq_index &
3536 0xFFF].addressHigh;
3537 flag_ccb = pmu->done_qbuffer[doneq_index & 0xFFF].addressLow;
3538 ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
3539 if (acb->cdb_phyadd_hipart)
3540 ccb_cdb_phy = ccb_cdb_phy | acb->cdb_phyadd_hipart;
3541 arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset +
3542 ccb_cdb_phy);
3543 pCCB = container_of(arcmsr_cdb, struct CommandControlBlock,
3544 arcmsr_cdb);
3545 poll_ccb_done |= (pCCB == poll_ccb) ? 1 : 0;
3546 if ((pCCB->acb != acb) ||
3547 (pCCB->startdone != ARCMSR_CCB_START)) {
3548 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
3549 pr_notice("arcmsr%d: scsi id = %d "
3550 "lun = %d ccb = '0x%p' poll command "
3551 "abort successfully\n"
3552 , acb->host->host_no
3553 , pCCB->pcmd->device->id
3554 , (u32)pCCB->pcmd->device->lun
3555 , pCCB);
3556 pCCB->pcmd->result = DID_ABORT << 16;
3557 arcmsr_ccb_complete(pCCB);
3558 continue;
3559 }
3560 pr_notice("arcmsr%d: polling an illegal "
3561 "ccb command done ccb = '0x%p' "
3562 "ccboutstandingcount = %d\n"
3563 , acb->host->host_no
3564 , pCCB
3565 , atomic_read(&acb->ccboutstandingcount));
3566 continue;
3567 }
3568 error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE1)
3569 ? true : false;
3570 arcmsr_report_ccb_state(acb, pCCB, error);
3571 }
3572 return rtn;
3573 }
3574
3575 static int arcmsr_hbaE_polling_ccbdone(struct AdapterControlBlock *acb,
3576 struct CommandControlBlock *poll_ccb)
3577 {
3578 bool error;
3579 uint32_t poll_ccb_done = 0, poll_count = 0, doneq_index;
3580 uint16_t cmdSMID;
3581 unsigned long flags;
3582 int rtn;
3583 struct CommandControlBlock *pCCB;
3584 struct MessageUnit_E __iomem *reg = acb->pmuE;
3585
3586 polling_hbaC_ccb_retry:
3587 poll_count++;
3588 while (1) {
3589 spin_lock_irqsave(&acb->doneq_lock, flags);
3590 doneq_index = acb->doneq_index;
3591 if ((readl(&reg->reply_post_producer_index) & 0xFFFF) ==
3592 doneq_index) {
3593 spin_unlock_irqrestore(&acb->doneq_lock, flags);
3594 if (poll_ccb_done) {
3595 rtn = SUCCESS;
3596 break;
3597 } else {
3598 msleep(25);
3599 if (poll_count > 40) {
3600 rtn = FAILED;
3601 break;
3602 }
3603 goto polling_hbaC_ccb_retry;
3604 }
3605 }
3606 cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
3607 doneq_index++;
3608 if (doneq_index >= acb->completionQ_entry)
3609 doneq_index = 0;
3610 acb->doneq_index = doneq_index;
3611 spin_unlock_irqrestore(&acb->doneq_lock, flags);
3612 pCCB = acb->pccb_pool[cmdSMID];
3613 poll_ccb_done |= (pCCB == poll_ccb) ? 1 : 0;
3614 /* check if command done with no error*/
3615 if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
3616 if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
3617 pr_notice("arcmsr%d: scsi id = %d "
3618 "lun = %d ccb = '0x%p' poll command "
3619 "abort successfully\n"
3620 , acb->host->host_no
3621 , pCCB->pcmd->device->id
3622 , (u32)pCCB->pcmd->device->lun
3623 , pCCB);
3624 pCCB->pcmd->result = DID_ABORT << 16;
3625 arcmsr_ccb_complete(pCCB);
3626 continue;
3627 }
3628 pr_notice("arcmsr%d: polling an illegal "
3629 "ccb command done ccb = '0x%p' "
3630 "ccboutstandingcount = %d\n"
3631 , acb->host->host_no
3632 , pCCB
3633 , atomic_read(&acb->ccboutstandingcount));
3634 continue;
3635 }
3636 error = (acb->pCompletionQ[doneq_index].cmdFlag &
3637 ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
3638 arcmsr_report_ccb_state(acb, pCCB, error);
3639 }
3640 writel(doneq_index, &reg->reply_post_consumer_index);
3641 return rtn;
3642 }
3643
3644 static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
3645 struct CommandControlBlock *poll_ccb)
3646 {
3647 int rtn = 0;
3648 switch (acb->adapter_type) {
3649
3650 case ACB_ADAPTER_TYPE_A: {
3651 rtn = arcmsr_hbaA_polling_ccbdone(acb, poll_ccb);
3652 }
3653 break;
3654
3655 case ACB_ADAPTER_TYPE_B: {
3656 rtn = arcmsr_hbaB_polling_ccbdone(acb, poll_ccb);
3657 }
3658 break;
3659 case ACB_ADAPTER_TYPE_C: {
3660 rtn = arcmsr_hbaC_polling_ccbdone(acb, poll_ccb);
3661 }
3662 break;
3663 case ACB_ADAPTER_TYPE_D:
3664 rtn = arcmsr_hbaD_polling_ccbdone(acb, poll_ccb);
3665 break;
3666 case ACB_ADAPTER_TYPE_E:
3667 rtn = arcmsr_hbaE_polling_ccbdone(acb, poll_ccb);
3668 break;
3669 }
3670 return rtn;
3671 }
3672
3673 static void arcmsr_set_iop_datetime(struct timer_list *t)
3674 {
3675 struct AdapterControlBlock *pacb = from_timer(pacb, t, refresh_timer);
3676 unsigned int next_time;
3677 struct tm tm;
3678
3679 union {
3680 struct {
3681 uint16_t signature;
3682 uint8_t year;
3683 uint8_t month;
3684 uint8_t date;
3685 uint8_t hour;
3686 uint8_t minute;
3687 uint8_t second;
3688 } a;
3689 struct {
3690 uint32_t msg_time[2];
3691 } b;
3692 } datetime;
3693
3694 time64_to_tm(ktime_get_real_seconds(), -sys_tz.tz_minuteswest * 60, &tm);
3695
3696 datetime.a.signature = 0x55AA;
3697 datetime.a.year = tm.tm_year - 100; /* base 2000 instead of 1900 */
3698 datetime.a.month = tm.tm_mon;
3699 datetime.a.date = tm.tm_mday;
3700 datetime.a.hour = tm.tm_hour;
3701 datetime.a.minute = tm.tm_min;
3702 datetime.a.second = tm.tm_sec;
3703
3704 switch (pacb->adapter_type) {
3705 case ACB_ADAPTER_TYPE_A: {
3706 struct MessageUnit_A __iomem *reg = pacb->pmuA;
3707 writel(datetime.b.msg_time[0], &reg->message_rwbuffer[0]);
3708 writel(datetime.b.msg_time[1], &reg->message_rwbuffer[1]);
3709 writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
3710 break;
3711 }
3712 case ACB_ADAPTER_TYPE_B: {
3713 uint32_t __iomem *rwbuffer;
3714 struct MessageUnit_B *reg = pacb->pmuB;
3715 rwbuffer = reg->message_rwbuffer;
3716 writel(datetime.b.msg_time[0], rwbuffer++);
3717 writel(datetime.b.msg_time[1], rwbuffer++);
3718 writel(ARCMSR_MESSAGE_SYNC_TIMER, reg->drv2iop_doorbell);
3719 break;
3720 }
3721 case ACB_ADAPTER_TYPE_C: {
3722 struct MessageUnit_C __iomem *reg = pacb->pmuC;
3723 writel(datetime.b.msg_time[0], &reg->msgcode_rwbuffer[0]);
3724 writel(datetime.b.msg_time[1], &reg->msgcode_rwbuffer[1]);
3725 writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
3726 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
3727 break;
3728 }
3729 case ACB_ADAPTER_TYPE_D: {
3730 uint32_t __iomem *rwbuffer;
3731 struct MessageUnit_D *reg = pacb->pmuD;
3732 rwbuffer = reg->msgcode_rwbuffer;
3733 writel(datetime.b.msg_time[0], rwbuffer++);
3734 writel(datetime.b.msg_time[1], rwbuffer++);
3735 writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, reg->inbound_msgaddr0);
3736 break;
3737 }
3738 case ACB_ADAPTER_TYPE_E: {
3739 struct MessageUnit_E __iomem *reg = pacb->pmuE;
3740 writel(datetime.b.msg_time[0], &reg->msgcode_rwbuffer[0]);
3741 writel(datetime.b.msg_time[1], &reg->msgcode_rwbuffer[1]);
3742 writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
3743 pacb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3744 writel(pacb->out_doorbell, &reg->iobound_doorbell);
3745 break;
3746 }
3747 }
3748 if (sys_tz.tz_minuteswest)
3749 next_time = ARCMSR_HOURS;
3750 else
3751 next_time = ARCMSR_MINUTES;
3752 mod_timer(&pacb->refresh_timer, jiffies + msecs_to_jiffies(next_time));
3753 }
3754
3755 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
3756 {
3757 uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
3758 dma_addr_t dma_coherent_handle;
3759
3760 /*
3761 ********************************************************************
3762 ** here we need to tell iop 331 our freeccb.HighPart
3763 ** if freeccb.HighPart is not zero
3764 ********************************************************************
3765 */
3766 switch (acb->adapter_type) {
3767 case ACB_ADAPTER_TYPE_B:
3768 case ACB_ADAPTER_TYPE_D:
3769 dma_coherent_handle = acb->dma_coherent_handle2;
3770 break;
3771 case ACB_ADAPTER_TYPE_E:
3772 dma_coherent_handle = acb->dma_coherent_handle +
3773 offsetof(struct CommandControlBlock, arcmsr_cdb);
3774 break;
3775 default:
3776 dma_coherent_handle = acb->dma_coherent_handle;
3777 break;
3778 }
3779 cdb_phyaddr = lower_32_bits(dma_coherent_handle);
3780 cdb_phyaddr_hi32 = upper_32_bits(dma_coherent_handle);
3781 acb->cdb_phyaddr_hi32 = cdb_phyaddr_hi32;
3782 acb->cdb_phyadd_hipart = ((uint64_t)cdb_phyaddr_hi32) << 32;
3783 /*
3784 ***********************************************************************
3785 ** if adapter type B, set window of "post command Q"
3786 ***********************************************************************
3787 */
3788 switch (acb->adapter_type) {
3789
3790 case ACB_ADAPTER_TYPE_A: {
3791 if (cdb_phyaddr_hi32 != 0) {
3792 struct MessageUnit_A __iomem *reg = acb->pmuA;
3793 writel(ARCMSR_SIGNATURE_SET_CONFIG, \
3794 &reg->message_rwbuffer[0]);
3795 writel(cdb_phyaddr_hi32, &reg->message_rwbuffer[1]);
3796 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, \
3797 &reg->inbound_msgaddr0);
3798 if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
3799 printk(KERN_NOTICE "arcmsr%d: ""set ccb high \
3800 part physical address timeout\n",
3801 acb->host->host_no);
3802 return 1;
3803 }
3804 }
3805 }
3806 break;
3807
3808 case ACB_ADAPTER_TYPE_B: {
3809 uint32_t __iomem *rwbuffer;
3810
3811 struct MessageUnit_B *reg = acb->pmuB;
3812 reg->postq_index = 0;
3813 reg->doneq_index = 0;
3814 writel(ARCMSR_MESSAGE_SET_POST_WINDOW, reg->drv2iop_doorbell);
3815 if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
3816 printk(KERN_NOTICE "arcmsr%d: cannot set driver mode\n", \
3817 acb->host->host_no);
3818 return 1;
3819 }
3820 rwbuffer = reg->message_rwbuffer;
3821 /* driver "set config" signature */
3822 writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++);
3823 /* normal should be zero */
3824 writel(cdb_phyaddr_hi32, rwbuffer++);
3825 /* postQ size (256 + 8)*4 */
3826 writel(cdb_phyaddr, rwbuffer++);
3827 /* doneQ size (256 + 8)*4 */
3828 writel(cdb_phyaddr + 1056, rwbuffer++);
3829 /* ccb maxQ size must be --> [(256 + 8)*4]*/
3830 writel(1056, rwbuffer);
3831
3832 writel(ARCMSR_MESSAGE_SET_CONFIG, reg->drv2iop_doorbell);
3833 if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
3834 printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
3835 timeout \n",acb->host->host_no);
3836 return 1;
3837 }
3838 writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
3839 if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
3840 pr_err("arcmsr%d: can't set driver mode.\n",
3841 acb->host->host_no);
3842 return 1;
3843 }
3844 }
3845 break;
3846 case ACB_ADAPTER_TYPE_C: {
3847 struct MessageUnit_C __iomem *reg = acb->pmuC;
3848
3849 printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x\n",
3850 acb->adapter_index, cdb_phyaddr_hi32);
3851 writel(ARCMSR_SIGNATURE_SET_CONFIG, &reg->msgcode_rwbuffer[0]);
3852 writel(cdb_phyaddr_hi32, &reg->msgcode_rwbuffer[1]);
3853 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, &reg->inbound_msgaddr0);
3854 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
3855 if (!arcmsr_hbaC_wait_msgint_ready(acb)) {
3856 printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \
3857 timeout \n", acb->host->host_no);
3858 return 1;
3859 }
3860 }
3861 break;
3862 case ACB_ADAPTER_TYPE_D: {
3863 uint32_t __iomem *rwbuffer;
3864 struct MessageUnit_D *reg = acb->pmuD;
3865 reg->postq_index = 0;
3866 reg->doneq_index = 0;
3867 rwbuffer = reg->msgcode_rwbuffer;
3868 writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++);
3869 writel(cdb_phyaddr_hi32, rwbuffer++);
3870 writel(cdb_phyaddr, rwbuffer++);
3871 writel(cdb_phyaddr + (ARCMSR_MAX_ARC1214_POSTQUEUE *
3872 sizeof(struct InBound_SRB)), rwbuffer++);
3873 writel(0x100, rwbuffer);
3874 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, reg->inbound_msgaddr0);
3875 if (!arcmsr_hbaD_wait_msgint_ready(acb)) {
3876 pr_notice("arcmsr%d: 'set command Q window' timeout\n",
3877 acb->host->host_no);
3878 return 1;
3879 }
3880 }
3881 break;
3882 case ACB_ADAPTER_TYPE_E: {
3883 struct MessageUnit_E __iomem *reg = acb->pmuE;
3884 writel(ARCMSR_SIGNATURE_SET_CONFIG, &reg->msgcode_rwbuffer[0]);
3885 writel(ARCMSR_SIGNATURE_1884, &reg->msgcode_rwbuffer[1]);
3886 writel(cdb_phyaddr, &reg->msgcode_rwbuffer[2]);
3887 writel(cdb_phyaddr_hi32, &reg->msgcode_rwbuffer[3]);
3888 writel(acb->ccbsize, &reg->msgcode_rwbuffer[4]);
3889 dma_coherent_handle = acb->dma_coherent_handle2;
3890 cdb_phyaddr = (uint32_t)(dma_coherent_handle & 0xffffffff);
3891 cdb_phyaddr_hi32 = (uint32_t)((dma_coherent_handle >> 16) >> 16);
3892 writel(cdb_phyaddr, &reg->msgcode_rwbuffer[5]);
3893 writel(cdb_phyaddr_hi32, &reg->msgcode_rwbuffer[6]);
3894 writel(acb->ioqueue_size, &reg->msgcode_rwbuffer[7]);
3895 writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, &reg->inbound_msgaddr0);
3896 acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
3897 writel(acb->out_doorbell, &reg->iobound_doorbell);
3898 if (!arcmsr_hbaE_wait_msgint_ready(acb)) {
3899 pr_notice("arcmsr%d: 'set command Q window' timeout \n",
3900 acb->host->host_no);
3901 return 1;
3902 }
3903 }
3904 break;
3905 }
3906 return 0;
3907 }
3908
3909 static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
3910 {
3911 uint32_t firmware_state = 0;
3912 switch (acb->adapter_type) {
3913
3914 case ACB_ADAPTER_TYPE_A: {
3915 struct MessageUnit_A __iomem *reg = acb->pmuA;
3916 do {
3917 if (!(acb->acb_flags & ACB_F_IOP_INITED))
3918 msleep(20);
3919 firmware_state = readl(&reg->outbound_msgaddr1);
3920 } while ((firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0);
3921 }
3922 break;
3923
3924 case ACB_ADAPTER_TYPE_B: {
3925 struct MessageUnit_B *reg = acb->pmuB;
3926 do {
3927 if (!(acb->acb_flags & ACB_F_IOP_INITED))
3928 msleep(20);
3929 firmware_state = readl(reg->iop2drv_doorbell);
3930 } while ((firmware_state & ARCMSR_MESSAGE_FIRMWARE_OK) == 0);
3931 writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
3932 }
3933 break;
3934 case ACB_ADAPTER_TYPE_C: {
3935 struct MessageUnit_C __iomem *reg = acb->pmuC;
3936 do {
3937 if (!(acb->acb_flags & ACB_F_IOP_INITED))
3938 msleep(20);
3939 firmware_state = readl(&reg->outbound_msgaddr1);
3940 } while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
3941 }
3942 break;
3943 case ACB_ADAPTER_TYPE_D: {
3944 struct MessageUnit_D *reg = acb->pmuD;
3945 do {
3946 if (!(acb->acb_flags & ACB_F_IOP_INITED))
3947 msleep(20);
3948 firmware_state = readl(reg->outbound_msgaddr1);
3949 } while ((firmware_state &
3950 ARCMSR_ARC1214_MESSAGE_FIRMWARE_OK) == 0);
3951 }
3952 break;
3953 case ACB_ADAPTER_TYPE_E: {
3954 struct MessageUnit_E __iomem *reg = acb->pmuE;
3955 do {
3956 if (!(acb->acb_flags & ACB_F_IOP_INITED))
3957 msleep(20);
3958 firmware_state = readl(&reg->outbound_msgaddr1);
3959 } while ((firmware_state & ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK) == 0);
3960 }
3961 break;
3962 }
3963 }
3964
3965 static void arcmsr_request_device_map(struct timer_list *t)
3966 {
3967 struct AdapterControlBlock *acb = from_timer(acb, t, eternal_timer);
3968 if (unlikely(atomic_read(&acb->rq_map_token) == 0) ||
3969 (acb->acb_flags & ACB_F_BUS_RESET) ||
3970 (acb->acb_flags & ACB_F_ABORT)) {
3971 mod_timer(&acb->eternal_timer,
3972 jiffies + msecs_to_jiffies(6 * HZ));
3973 } else {
3974 acb->fw_flag = FW_NORMAL;
3975 if (atomic_read(&acb->ante_token_value) ==
3976 atomic_read(&acb->rq_map_token)) {
3977 atomic_set(&acb->rq_map_token, 16);
3978 }
3979 atomic_set(&acb->ante_token_value,
3980 atomic_read(&acb->rq_map_token));
3981 if (atomic_dec_and_test(&acb->rq_map_token)) {
3982 mod_timer(&acb->eternal_timer, jiffies +
3983 msecs_to_jiffies(6 * HZ));
3984 return;
3985 }
3986 switch (acb->adapter_type) {
3987 case ACB_ADAPTER_TYPE_A: {
3988 struct MessageUnit_A __iomem *reg = acb->pmuA;
3989 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
3990 break;
3991 }
3992 case ACB_ADAPTER_TYPE_B: {
3993 struct MessageUnit_B *reg = acb->pmuB;
3994 writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
3995 break;
3996 }
3997 case ACB_ADAPTER_TYPE_C: {
3998 struct MessageUnit_C __iomem *reg = acb->pmuC;
3999 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
4000 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
4001 break;
4002 }
4003 case ACB_ADAPTER_TYPE_D: {
4004 struct MessageUnit_D *reg = acb->pmuD;
4005 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, reg->inbound_msgaddr0);
4006 break;
4007 }
4008 case ACB_ADAPTER_TYPE_E: {
4009 struct MessageUnit_E __iomem *reg = acb->pmuE;
4010 writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
4011 acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4012 writel(acb->out_doorbell, &reg->iobound_doorbell);
4013 break;
4014 }
4015 default:
4016 return;
4017 }
4018 acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
4019 mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
4020 }
4021 }
4022
4023 static void arcmsr_hbaA_start_bgrb(struct AdapterControlBlock *acb)
4024 {
4025 struct MessageUnit_A __iomem *reg = acb->pmuA;
4026 acb->acb_flags |= ACB_F_MSG_START_BGRB;
4027 writel(ARCMSR_INBOUND_MESG0_START_BGRB, &reg->inbound_msgaddr0);
4028 if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
4029 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
4030 rebuild' timeout \n", acb->host->host_no);
4031 }
4032 }
4033
4034 static void arcmsr_hbaB_start_bgrb(struct AdapterControlBlock *acb)
4035 {
4036 struct MessageUnit_B *reg = acb->pmuB;
4037 acb->acb_flags |= ACB_F_MSG_START_BGRB;
4038 writel(ARCMSR_MESSAGE_START_BGRB, reg->drv2iop_doorbell);
4039 if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
4040 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
4041 rebuild' timeout \n",acb->host->host_no);
4042 }
4043 }
4044
4045 static void arcmsr_hbaC_start_bgrb(struct AdapterControlBlock *pACB)
4046 {
4047 struct MessageUnit_C __iomem *phbcmu = pACB->pmuC;
4048 pACB->acb_flags |= ACB_F_MSG_START_BGRB;
4049 writel(ARCMSR_INBOUND_MESG0_START_BGRB, &phbcmu->inbound_msgaddr0);
4050 writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &phbcmu->inbound_doorbell);
4051 if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
4052 printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \
4053 rebuild' timeout \n", pACB->host->host_no);
4054 }
4055 return;
4056 }
4057
4058 static void arcmsr_hbaD_start_bgrb(struct AdapterControlBlock *pACB)
4059 {
4060 struct MessageUnit_D *pmu = pACB->pmuD;
4061
4062 pACB->acb_flags |= ACB_F_MSG_START_BGRB;
4063 writel(ARCMSR_INBOUND_MESG0_START_BGRB, pmu->inbound_msgaddr0);
4064 if (!arcmsr_hbaD_wait_msgint_ready(pACB)) {
4065 pr_notice("arcmsr%d: wait 'start adapter "
4066 "background rebuild' timeout\n", pACB->host->host_no);
4067 }
4068 }
4069
4070 static void arcmsr_hbaE_start_bgrb(struct AdapterControlBlock *pACB)
4071 {
4072 struct MessageUnit_E __iomem *pmu = pACB->pmuE;
4073
4074 pACB->acb_flags |= ACB_F_MSG_START_BGRB;
4075 writel(ARCMSR_INBOUND_MESG0_START_BGRB, &pmu->inbound_msgaddr0);
4076 pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
4077 writel(pACB->out_doorbell, &pmu->iobound_doorbell);
4078 if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
4079 pr_notice("arcmsr%d: wait 'start adapter "
4080 "background rebuild' timeout \n", pACB->host->host_no);
4081 }
4082 }
4083
4084 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
4085 {
4086 switch (acb->adapter_type) {
4087 case ACB_ADAPTER_TYPE_A:
4088 arcmsr_hbaA_start_bgrb(acb);
4089 break;
4090 case ACB_ADAPTER_TYPE_B:
4091 arcmsr_hbaB_start_bgrb(acb);
4092 break;
4093 case ACB_ADAPTER_TYPE_C:
4094 arcmsr_hbaC_start_bgrb(acb);
4095 break;
4096 case ACB_ADAPTER_TYPE_D:
4097 arcmsr_hbaD_start_bgrb(acb);
4098 break;
4099 case ACB_ADAPTER_TYPE_E:
4100 arcmsr_hbaE_start_bgrb(acb);
4101 break;
4102 }
4103 }
4104
4105 static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
4106 {
4107 switch (acb->adapter_type) {
4108 case ACB_ADAPTER_TYPE_A: {
4109 struct MessageUnit_A __iomem *reg = acb->pmuA;
4110 uint32_t outbound_doorbell;
4111 /* empty doorbell Qbuffer if door bell ringed */
4112 outbound_doorbell = readl(&reg->outbound_doorbell);
4113 /*clear doorbell interrupt */
4114 writel(outbound_doorbell, &reg->outbound_doorbell);
4115 writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, &reg->inbound_doorbell);
4116 }
4117 break;
4118
4119 case ACB_ADAPTER_TYPE_B: {
4120 struct MessageUnit_B *reg = acb->pmuB;
4121 uint32_t outbound_doorbell, i;
4122 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
4123 writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
4124 /* let IOP know data has been read */
4125 for(i=0; i < 200; i++) {
4126 msleep(20);
4127 outbound_doorbell = readl(reg->iop2drv_doorbell);
4128 if( outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
4129 writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
4130 writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
4131 } else
4132 break;
4133 }
4134 }
4135 break;
4136 case ACB_ADAPTER_TYPE_C: {
4137 struct MessageUnit_C __iomem *reg = acb->pmuC;
4138 uint32_t outbound_doorbell, i;
4139 /* empty doorbell Qbuffer if door bell ringed */
4140 outbound_doorbell = readl(&reg->outbound_doorbell);
4141 writel(outbound_doorbell, &reg->outbound_doorbell_clear);
4142 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK, &reg->inbound_doorbell);
4143 for (i = 0; i < 200; i++) {
4144 msleep(20);
4145 outbound_doorbell = readl(&reg->outbound_doorbell);
4146 if (outbound_doorbell &
4147 ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {
4148 writel(outbound_doorbell,
4149 &reg->outbound_doorbell_clear);
4150 writel(ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK,
4151 &reg->inbound_doorbell);
4152 } else
4153 break;
4154 }
4155 }
4156 break;
4157 case ACB_ADAPTER_TYPE_D: {
4158 struct MessageUnit_D *reg = acb->pmuD;
4159 uint32_t outbound_doorbell, i;
4160 /* empty doorbell Qbuffer if door bell ringed */
4161 outbound_doorbell = readl(reg->outbound_doorbell);
4162 writel(outbound_doorbell, reg->outbound_doorbell);
4163 writel(ARCMSR_ARC1214_DRV2IOP_DATA_OUT_READ,
4164 reg->inbound_doorbell);
4165 for (i = 0; i < 200; i++) {
4166 msleep(20);
4167 outbound_doorbell = readl(reg->outbound_doorbell);
4168 if (outbound_doorbell &
4169 ARCMSR_ARC1214_IOP2DRV_DATA_WRITE_OK) {
4170 writel(outbound_doorbell,
4171 reg->outbound_doorbell);
4172 writel(ARCMSR_ARC1214_DRV2IOP_DATA_OUT_READ,
4173 reg->inbound_doorbell);
4174 } else
4175 break;
4176 }
4177 }
4178 break;
4179 case ACB_ADAPTER_TYPE_E: {
4180 struct MessageUnit_E __iomem *reg = acb->pmuE;
4181 uint32_t i, tmp;
4182
4183 acb->in_doorbell = readl(&reg->iobound_doorbell);
4184 writel(0, &reg->host_int_status); /*clear interrupt*/
4185 acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
4186 writel(acb->out_doorbell, &reg->iobound_doorbell);
4187 for(i=0; i < 200; i++) {
4188 msleep(20);
4189 tmp = acb->in_doorbell;
4190 acb->in_doorbell = readl(&reg->iobound_doorbell);
4191 if((tmp ^ acb->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
4192 writel(0, &reg->host_int_status); /*clear interrupt*/
4193 acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
4194 writel(acb->out_doorbell, &reg->iobound_doorbell);
4195 } else
4196 break;
4197 }
4198 }
4199 break;
4200 }
4201 }
4202
4203 static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
4204 {
4205 switch (acb->adapter_type) {
4206 case ACB_ADAPTER_TYPE_A:
4207 return;
4208 case ACB_ADAPTER_TYPE_B:
4209 {
4210 struct MessageUnit_B *reg = acb->pmuB;
4211 writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE, reg->drv2iop_doorbell);
4212 if (!arcmsr_hbaB_wait_msgint_ready(acb)) {
4213 printk(KERN_NOTICE "ARCMSR IOP enables EOI_MODE TIMEOUT");
4214 return;
4215 }
4216 }
4217 break;
4218 case ACB_ADAPTER_TYPE_C:
4219 return;
4220 }
4221 return;
4222 }
4223
4224 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
4225 {
4226 uint8_t value[64];
4227 int i, count = 0;
4228 struct MessageUnit_A __iomem *pmuA = acb->pmuA;
4229 struct MessageUnit_C __iomem *pmuC = acb->pmuC;
4230 struct MessageUnit_D *pmuD = acb->pmuD;
4231
4232 /* backup pci config data */
4233 printk(KERN_NOTICE "arcmsr%d: executing hw bus reset .....\n", acb->host->host_no);
4234 for (i = 0; i < 64; i++) {
4235 pci_read_config_byte(acb->pdev, i, &value[i]);
4236 }
4237 /* hardware reset signal */
4238 if (acb->dev_id == 0x1680) {
4239 writel(ARCMSR_ARC1680_BUS_RESET, &pmuA->reserved1[0]);
4240 } else if (acb->dev_id == 0x1880) {
4241 do {
4242 count++;
4243 writel(0xF, &pmuC->write_sequence);
4244 writel(0x4, &pmuC->write_sequence);
4245 writel(0xB, &pmuC->write_sequence);
4246 writel(0x2, &pmuC->write_sequence);
4247 writel(0x7, &pmuC->write_sequence);
4248 writel(0xD, &pmuC->write_sequence);
4249 } while (((readl(&pmuC->host_diagnostic) & ARCMSR_ARC1880_DiagWrite_ENABLE) == 0) && (count < 5));
4250 writel(ARCMSR_ARC1880_RESET_ADAPTER, &pmuC->host_diagnostic);
4251 } else if (acb->dev_id == 0x1884) {
4252 struct MessageUnit_E __iomem *pmuE = acb->pmuE;
4253 do {
4254 count++;
4255 writel(0x4, &pmuE->write_sequence_3xxx);
4256 writel(0xB, &pmuE->write_sequence_3xxx);
4257 writel(0x2, &pmuE->write_sequence_3xxx);
4258 writel(0x7, &pmuE->write_sequence_3xxx);
4259 writel(0xD, &pmuE->write_sequence_3xxx);
4260 mdelay(10);
4261 } while (((readl(&pmuE->host_diagnostic_3xxx) &
4262 ARCMSR_ARC1884_DiagWrite_ENABLE) == 0) && (count < 5));
4263 writel(ARCMSR_ARC188X_RESET_ADAPTER, &pmuE->host_diagnostic_3xxx);
4264 } else if (acb->dev_id == 0x1214) {
4265 writel(0x20, pmuD->reset_request);
4266 } else {
4267 pci_write_config_byte(acb->pdev, 0x84, 0x20);
4268 }
4269 msleep(2000);
4270 /* write back pci config data */
4271 for (i = 0; i < 64; i++) {
4272 pci_write_config_byte(acb->pdev, i, value[i]);
4273 }
4274 msleep(1000);
4275 return;
4276 }
4277
4278 static bool arcmsr_reset_in_progress(struct AdapterControlBlock *acb)
4279 {
4280 bool rtn = true;
4281
4282 switch(acb->adapter_type) {
4283 case ACB_ADAPTER_TYPE_A:{
4284 struct MessageUnit_A __iomem *reg = acb->pmuA;
4285 rtn = ((readl(&reg->outbound_msgaddr1) &
4286 ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) ? true : false;
4287 }
4288 break;
4289 case ACB_ADAPTER_TYPE_B:{
4290 struct MessageUnit_B *reg = acb->pmuB;
4291 rtn = ((readl(reg->iop2drv_doorbell) &
4292 ARCMSR_MESSAGE_FIRMWARE_OK) == 0) ? true : false;
4293 }
4294 break;
4295 case ACB_ADAPTER_TYPE_C:{
4296 struct MessageUnit_C __iomem *reg = acb->pmuC;
4297 rtn = (readl(&reg->host_diagnostic) & 0x04) ? true : false;
4298 }
4299 break;
4300 case ACB_ADAPTER_TYPE_D:{
4301 struct MessageUnit_D *reg = acb->pmuD;
4302 rtn = ((readl(reg->sample_at_reset) & 0x80) == 0) ?
4303 true : false;
4304 }
4305 break;
4306 case ACB_ADAPTER_TYPE_E:{
4307 struct MessageUnit_E __iomem *reg = acb->pmuE;
4308 rtn = (readl(&reg->host_diagnostic_3xxx) &
4309 ARCMSR_ARC188X_RESET_ADAPTER) ? true : false;
4310 }
4311 break;
4312 }
4313 return rtn;
4314 }
4315
4316 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
4317 {
4318 uint32_t intmask_org;
4319 /* disable all outbound interrupt */
4320 intmask_org = arcmsr_disable_outbound_ints(acb);
4321 arcmsr_wait_firmware_ready(acb);
4322 arcmsr_iop_confirm(acb);
4323 /*start background rebuild*/
4324 arcmsr_start_adapter_bgrb(acb);
4325 /* empty doorbell Qbuffer if door bell ringed */
4326 arcmsr_clear_doorbell_queue_buffer(acb);
4327 arcmsr_enable_eoi_mode(acb);
4328 /* enable outbound Post Queue,outbound doorbell Interrupt */
4329 arcmsr_enable_outbound_ints(acb, intmask_org);
4330 acb->acb_flags |= ACB_F_IOP_INITED;
4331 }
4332
4333 static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
4334 {
4335 struct CommandControlBlock *ccb;
4336 uint32_t intmask_org;
4337 uint8_t rtnval = 0x00;
4338 int i = 0;
4339 unsigned long flags;
4340
4341 if (atomic_read(&acb->ccboutstandingcount) != 0) {
4342 /* disable all outbound interrupt */
4343 intmask_org = arcmsr_disable_outbound_ints(acb);
4344 /* talk to iop 331 outstanding command aborted */
4345 rtnval = arcmsr_abort_allcmd(acb);
4346 /* clear all outbound posted Q */
4347 arcmsr_done4abort_postqueue(acb);
4348 for (i = 0; i < acb->maxFreeCCB; i++) {
4349 ccb = acb->pccb_pool[i];
4350 if (ccb->startdone == ARCMSR_CCB_START) {
4351 scsi_dma_unmap(ccb->pcmd);
4352 ccb->startdone = ARCMSR_CCB_DONE;
4353 ccb->ccb_flags = 0;
4354 spin_lock_irqsave(&acb->ccblist_lock, flags);
4355 list_add_tail(&ccb->list, &acb->ccb_free_list);
4356 spin_unlock_irqrestore(&acb->ccblist_lock, flags);
4357 }
4358 }
4359 atomic_set(&acb->ccboutstandingcount, 0);
4360 /* enable all outbound interrupt */
4361 arcmsr_enable_outbound_ints(acb, intmask_org);
4362 return rtnval;
4363 }
4364 return rtnval;
4365 }
4366
4367 static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
4368 {
4369 struct AdapterControlBlock *acb;
4370 int retry_count = 0;
4371 int rtn = FAILED;
4372 acb = (struct AdapterControlBlock *) cmd->device->host->hostdata;
4373 if (acb->acb_flags & ACB_F_ADAPTER_REMOVED)
4374 return SUCCESS;
4375 pr_notice("arcmsr: executing bus reset eh.....num_resets = %d,"
4376 " num_aborts = %d \n", acb->num_resets, acb->num_aborts);
4377 acb->num_resets++;
4378
4379 if (acb->acb_flags & ACB_F_BUS_RESET) {
4380 long timeout;
4381 pr_notice("arcmsr: there is a bus reset eh proceeding...\n");
4382 timeout = wait_event_timeout(wait_q, (acb->acb_flags
4383 & ACB_F_BUS_RESET) == 0, 220 * HZ);
4384 if (timeout)
4385 return SUCCESS;
4386 }
4387 acb->acb_flags |= ACB_F_BUS_RESET;
4388 if (!arcmsr_iop_reset(acb)) {
4389 arcmsr_hardware_reset(acb);
4390 acb->acb_flags &= ~ACB_F_IOP_INITED;
4391 wait_reset_done:
4392 ssleep(ARCMSR_SLEEPTIME);
4393 if (arcmsr_reset_in_progress(acb)) {
4394 if (retry_count > ARCMSR_RETRYCOUNT) {
4395 acb->fw_flag = FW_DEADLOCK;
4396 pr_notice("arcmsr%d: waiting for hw bus reset"
4397 " return, RETRY TERMINATED!!\n",
4398 acb->host->host_no);
4399 return FAILED;
4400 }
4401 retry_count++;
4402 goto wait_reset_done;
4403 }
4404 arcmsr_iop_init(acb);
4405 atomic_set(&acb->rq_map_token, 16);
4406 atomic_set(&acb->ante_token_value, 16);
4407 acb->fw_flag = FW_NORMAL;
4408 mod_timer(&acb->eternal_timer, jiffies +
4409 msecs_to_jiffies(6 * HZ));
4410 acb->acb_flags &= ~ACB_F_BUS_RESET;
4411 rtn = SUCCESS;
4412 pr_notice("arcmsr: scsi bus reset eh returns with success\n");
4413 } else {
4414 acb->acb_flags &= ~ACB_F_BUS_RESET;
4415 atomic_set(&acb->rq_map_token, 16);
4416 atomic_set(&acb->ante_token_value, 16);
4417 acb->fw_flag = FW_NORMAL;
4418 mod_timer(&acb->eternal_timer, jiffies +
4419 msecs_to_jiffies(6 * HZ));
4420 rtn = SUCCESS;
4421 }
4422 return rtn;
4423 }
4424
4425 static int arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
4426 struct CommandControlBlock *ccb)
4427 {
4428 int rtn;
4429 rtn = arcmsr_polling_ccbdone(acb, ccb);
4430 return rtn;
4431 }
4432
4433 static int arcmsr_abort(struct scsi_cmnd *cmd)
4434 {
4435 struct AdapterControlBlock *acb =
4436 (struct AdapterControlBlock *)cmd->device->host->hostdata;
4437 int i = 0;
4438 int rtn = FAILED;
4439 uint32_t intmask_org;
4440
4441 if (acb->acb_flags & ACB_F_ADAPTER_REMOVED)
4442 return SUCCESS;
4443 printk(KERN_NOTICE
4444 "arcmsr%d: abort device command of scsi id = %d lun = %d\n",
4445 acb->host->host_no, cmd->device->id, (u32)cmd->device->lun);
4446 acb->acb_flags |= ACB_F_ABORT;
4447 acb->num_aborts++;
4448 /*
4449 ************************************************
4450 ** the all interrupt service routine is locked
4451 ** we need to handle it as soon as possible and exit
4452 ************************************************
4453 */
4454 if (!atomic_read(&acb->ccboutstandingcount)) {
4455 acb->acb_flags &= ~ACB_F_ABORT;
4456 return rtn;
4457 }
4458
4459 intmask_org = arcmsr_disable_outbound_ints(acb);
4460 for (i = 0; i < acb->maxFreeCCB; i++) {
4461 struct CommandControlBlock *ccb = acb->pccb_pool[i];
4462 if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) {
4463 ccb->startdone = ARCMSR_CCB_ABORTED;
4464 rtn = arcmsr_abort_one_cmd(acb, ccb);
4465 break;
4466 }
4467 }
4468 acb->acb_flags &= ~ACB_F_ABORT;
4469 arcmsr_enable_outbound_ints(acb, intmask_org);
4470 return rtn;
4471 }
4472
4473 static const char *arcmsr_info(struct Scsi_Host *host)
4474 {
4475 struct AdapterControlBlock *acb =
4476 (struct AdapterControlBlock *) host->hostdata;
4477 static char buf[256];
4478 char *type;
4479 int raid6 = 1;
4480 switch (acb->pdev->device) {
4481 case PCI_DEVICE_ID_ARECA_1110:
4482 case PCI_DEVICE_ID_ARECA_1200:
4483 case PCI_DEVICE_ID_ARECA_1202:
4484 case PCI_DEVICE_ID_ARECA_1210:
4485 raid6 = 0;
4486 /*FALLTHRU*/
4487 case PCI_DEVICE_ID_ARECA_1120:
4488 case PCI_DEVICE_ID_ARECA_1130:
4489 case PCI_DEVICE_ID_ARECA_1160:
4490 case PCI_DEVICE_ID_ARECA_1170:
4491 case PCI_DEVICE_ID_ARECA_1201:
4492 case PCI_DEVICE_ID_ARECA_1203:
4493 case PCI_DEVICE_ID_ARECA_1220:
4494 case PCI_DEVICE_ID_ARECA_1230:
4495 case PCI_DEVICE_ID_ARECA_1260:
4496 case PCI_DEVICE_ID_ARECA_1270:
4497 case PCI_DEVICE_ID_ARECA_1280:
4498 type = "SATA";
4499 break;
4500 case PCI_DEVICE_ID_ARECA_1214:
4501 case PCI_DEVICE_ID_ARECA_1380:
4502 case PCI_DEVICE_ID_ARECA_1381:
4503 case PCI_DEVICE_ID_ARECA_1680:
4504 case PCI_DEVICE_ID_ARECA_1681:
4505 case PCI_DEVICE_ID_ARECA_1880:
4506 case PCI_DEVICE_ID_ARECA_1884:
4507 type = "SAS/SATA";
4508 break;
4509 default:
4510 type = "unknown";
4511 raid6 = 0;
4512 break;
4513 }
4514 sprintf(buf, "Areca %s RAID Controller %s\narcmsr version %s\n",
4515 type, raid6 ? "(RAID6 capable)" : "", ARCMSR_DRIVER_VERSION);
4516 return buf;
4517 }
Linux with added FPC-III support