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1c57e86d EC |
1 | /* |
2 | ******************************************************************************* | |
3 | ** O.S : Linux | |
4 | ** FILE NAME : arcmsr_hba.c | |
5 | ** BY : Erich Chen | |
6 | ** Description: SCSI RAID Device Driver for | |
7 | ** ARECA RAID Host adapter | |
8 | ******************************************************************************* | |
9 | ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved | |
10 | ** | |
11 | ** Web site: www.areca.com.tw | |
1a4f550a | 12 | ** E-mail: support@areca.com.tw |
1c57e86d EC |
13 | ** |
14 | ** This program is free software; you can redistribute it and/or modify | |
15 | ** it under the terms of the GNU General Public License version 2 as | |
16 | ** published by the Free Software Foundation. | |
17 | ** This program is distributed in the hope that it will be useful, | |
18 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ** GNU General Public License for more details. | |
21 | ******************************************************************************* | |
22 | ** Redistribution and use in source and binary forms, with or without | |
23 | ** modification, are permitted provided that the following conditions | |
24 | ** are met: | |
25 | ** 1. Redistributions of source code must retain the above copyright | |
26 | ** notice, this list of conditions and the following disclaimer. | |
27 | ** 2. Redistributions in binary form must reproduce the above copyright | |
28 | ** notice, this list of conditions and the following disclaimer in the | |
29 | ** documentation and/or other materials provided with the distribution. | |
30 | ** 3. The name of the author may not be used to endorse or promote products | |
31 | ** derived from this software without specific prior written permission. | |
32 | ** | |
33 | ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
34 | ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
35 | ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
36 | ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
37 | ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT | |
38 | ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
39 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY | |
40 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
41 | ** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF | |
42 | ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
43 | ******************************************************************************* | |
44 | ** For history of changes, see Documentation/scsi/ChangeLog.arcmsr | |
45 | ** Firmware Specification, see Documentation/scsi/arcmsr_spec.txt | |
46 | ******************************************************************************* | |
47 | */ | |
48 | #include <linux/module.h> | |
49 | #include <linux/reboot.h> | |
50 | #include <linux/spinlock.h> | |
51 | #include <linux/pci_ids.h> | |
52 | #include <linux/interrupt.h> | |
53 | #include <linux/moduleparam.h> | |
54 | #include <linux/errno.h> | |
55 | #include <linux/types.h> | |
56 | #include <linux/delay.h> | |
57 | #include <linux/dma-mapping.h> | |
58 | #include <linux/timer.h> | |
59 | #include <linux/pci.h> | |
a1f6e021 | 60 | #include <linux/aer.h> |
5a0e3ad6 | 61 | #include <linux/slab.h> |
1c57e86d EC |
62 | #include <asm/dma.h> |
63 | #include <asm/io.h> | |
64 | #include <asm/system.h> | |
65 | #include <asm/uaccess.h> | |
66 | #include <scsi/scsi_host.h> | |
67 | #include <scsi/scsi.h> | |
68 | #include <scsi/scsi_cmnd.h> | |
69 | #include <scsi/scsi_tcq.h> | |
70 | #include <scsi/scsi_device.h> | |
71 | #include <scsi/scsi_transport.h> | |
72 | #include <scsi/scsicam.h> | |
73 | #include "arcmsr.h" | |
74 | ||
36b83ded NC |
75 | #ifdef CONFIG_SCSI_ARCMSR_RESET |
76 | static int sleeptime = 20; | |
77 | static int retrycount = 12; | |
78 | module_param(sleeptime, int, S_IRUGO|S_IWUSR); | |
79 | MODULE_PARM_DESC(sleeptime, "The waiting period for FW ready while bus reset"); | |
80 | module_param(retrycount, int, S_IRUGO|S_IWUSR); | |
81 | MODULE_PARM_DESC(retrycount, "The retry count for FW ready while bus reset"); | |
82 | #endif | |
1a4f550a | 83 | MODULE_AUTHOR("Erich Chen <support@areca.com.tw>"); |
36b83ded | 84 | MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID Host Bus Adapter"); |
1c57e86d EC |
85 | MODULE_LICENSE("Dual BSD/GPL"); |
86 | MODULE_VERSION(ARCMSR_DRIVER_VERSION); | |
87 | ||
1a4f550a NC |
88 | static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, |
89 | struct scsi_cmnd *cmd); | |
90 | static int arcmsr_iop_confirm(struct AdapterControlBlock *acb); | |
1c57e86d EC |
91 | static int arcmsr_abort(struct scsi_cmnd *); |
92 | static int arcmsr_bus_reset(struct scsi_cmnd *); | |
93 | static int arcmsr_bios_param(struct scsi_device *sdev, | |
1a4f550a NC |
94 | struct block_device *bdev, sector_t capacity, int *info); |
95 | static int arcmsr_queue_command(struct scsi_cmnd *cmd, | |
96 | void (*done) (struct scsi_cmnd *)); | |
1c57e86d EC |
97 | static int arcmsr_probe(struct pci_dev *pdev, |
98 | const struct pci_device_id *id); | |
99 | static void arcmsr_remove(struct pci_dev *pdev); | |
100 | static void arcmsr_shutdown(struct pci_dev *pdev); | |
101 | static void arcmsr_iop_init(struct AdapterControlBlock *acb); | |
102 | static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb); | |
1a4f550a | 103 | static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb); |
1c57e86d | 104 | static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb); |
1a4f550a NC |
105 | static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb); |
106 | static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb); | |
36b83ded NC |
107 | static void arcmsr_request_device_map(unsigned long pacb); |
108 | static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb); | |
109 | static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb); | |
110 | static void arcmsr_message_isr_bh_fn(struct work_struct *work); | |
111 | static void *arcmsr_get_firmware_spec(struct AdapterControlBlock *acb, int mode); | |
112 | static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb); | |
113 | ||
1c57e86d EC |
114 | static const char *arcmsr_info(struct Scsi_Host *); |
115 | static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb); | |
1a4f550a | 116 | static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, |
e881a172 | 117 | int queue_depth, int reason) |
1c57e86d | 118 | { |
e881a172 MC |
119 | if (reason != SCSI_QDEPTH_DEFAULT) |
120 | return -EOPNOTSUPP; | |
121 | ||
1c57e86d EC |
122 | if (queue_depth > ARCMSR_MAX_CMD_PERLUN) |
123 | queue_depth = ARCMSR_MAX_CMD_PERLUN; | |
124 | scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth); | |
125 | return queue_depth; | |
126 | } | |
127 | ||
128 | static struct scsi_host_template arcmsr_scsi_host_template = { | |
129 | .module = THIS_MODULE, | |
36b83ded | 130 | .name = "ARCMSR ARECA SATA/SAS RAID Host Bus Adapter" |
a1f6e021 | 131 | ARCMSR_DRIVER_VERSION, |
1c57e86d EC |
132 | .info = arcmsr_info, |
133 | .queuecommand = arcmsr_queue_command, | |
134 | .eh_abort_handler = arcmsr_abort, | |
135 | .eh_bus_reset_handler = arcmsr_bus_reset, | |
136 | .bios_param = arcmsr_bios_param, | |
137 | .change_queue_depth = arcmsr_adjust_disk_queue_depth, | |
138 | .can_queue = ARCMSR_MAX_OUTSTANDING_CMD, | |
139 | .this_id = ARCMSR_SCSI_INITIATOR_ID, | |
140 | .sg_tablesize = ARCMSR_MAX_SG_ENTRIES, | |
141 | .max_sectors = ARCMSR_MAX_XFER_SECTORS, | |
142 | .cmd_per_lun = ARCMSR_MAX_CMD_PERLUN, | |
143 | .use_clustering = ENABLE_CLUSTERING, | |
144 | .shost_attrs = arcmsr_host_attrs, | |
145 | }; | |
1c57e86d EC |
146 | static struct pci_device_id arcmsr_device_id_table[] = { |
147 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)}, | |
148 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)}, | |
149 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1130)}, | |
150 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1160)}, | |
151 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1170)}, | |
1a4f550a NC |
152 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1200)}, |
153 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1201)}, | |
154 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1202)}, | |
1c57e86d EC |
155 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1210)}, |
156 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1220)}, | |
157 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1230)}, | |
158 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1260)}, | |
159 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1270)}, | |
160 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1280)}, | |
161 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1380)}, | |
162 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381)}, | |
163 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680)}, | |
164 | {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681)}, | |
165 | {0, 0}, /* Terminating entry */ | |
166 | }; | |
167 | MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table); | |
168 | static struct pci_driver arcmsr_pci_driver = { | |
169 | .name = "arcmsr", | |
170 | .id_table = arcmsr_device_id_table, | |
171 | .probe = arcmsr_probe, | |
172 | .remove = arcmsr_remove, | |
a1f6e021 | 173 | .shutdown = arcmsr_shutdown, |
1c57e86d EC |
174 | }; |
175 | ||
7d12e780 | 176 | static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id) |
1c57e86d EC |
177 | { |
178 | irqreturn_t handle_state; | |
1a4f550a | 179 | struct AdapterControlBlock *acb = dev_id; |
1c57e86d | 180 | |
1a4f550a | 181 | spin_lock(acb->host->host_lock); |
1c57e86d | 182 | handle_state = arcmsr_interrupt(acb); |
1a4f550a NC |
183 | spin_unlock(acb->host->host_lock); |
184 | ||
1c57e86d EC |
185 | return handle_state; |
186 | } | |
187 | ||
188 | static int arcmsr_bios_param(struct scsi_device *sdev, | |
189 | struct block_device *bdev, sector_t capacity, int *geom) | |
190 | { | |
191 | int ret, heads, sectors, cylinders, total_capacity; | |
192 | unsigned char *buffer;/* return copy of block device's partition table */ | |
193 | ||
194 | buffer = scsi_bios_ptable(bdev); | |
195 | if (buffer) { | |
196 | ret = scsi_partsize(buffer, capacity, &geom[2], &geom[0], &geom[1]); | |
197 | kfree(buffer); | |
198 | if (ret != -1) | |
199 | return ret; | |
200 | } | |
201 | total_capacity = capacity; | |
202 | heads = 64; | |
203 | sectors = 32; | |
204 | cylinders = total_capacity / (heads * sectors); | |
205 | if (cylinders > 1024) { | |
206 | heads = 255; | |
207 | sectors = 63; | |
208 | cylinders = total_capacity / (heads * sectors); | |
209 | } | |
210 | geom[0] = heads; | |
211 | geom[1] = sectors; | |
212 | geom[2] = cylinders; | |
213 | return 0; | |
214 | } | |
215 | ||
1a4f550a | 216 | static void arcmsr_define_adapter_type(struct AdapterControlBlock *acb) |
1c57e86d EC |
217 | { |
218 | struct pci_dev *pdev = acb->pdev; | |
1a4f550a NC |
219 | u16 dev_id; |
220 | pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id); | |
221 | switch (dev_id) { | |
222 | case 0x1201 : { | |
223 | acb->adapter_type = ACB_ADAPTER_TYPE_B; | |
224 | } | |
225 | break; | |
226 | ||
227 | default : acb->adapter_type = ACB_ADAPTER_TYPE_A; | |
228 | } | |
229 | } | |
230 | ||
231 | static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb) | |
232 | { | |
233 | ||
234 | switch (acb->adapter_type) { | |
1c57e86d | 235 | |
1a4f550a NC |
236 | case ACB_ADAPTER_TYPE_A: { |
237 | struct pci_dev *pdev = acb->pdev; | |
238 | void *dma_coherent; | |
239 | dma_addr_t dma_coherent_handle, dma_addr; | |
240 | struct CommandControlBlock *ccb_tmp; | |
1a4f550a NC |
241 | int i, j; |
242 | ||
36b83ded | 243 | acb->pmuA = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); |
80da1adb | 244 | if (!acb->pmuA) { |
1a4f550a NC |
245 | printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n", |
246 | acb->host->host_no); | |
db3a91fe | 247 | return -ENOMEM; |
1a4f550a NC |
248 | } |
249 | ||
250 | dma_coherent = dma_alloc_coherent(&pdev->dev, | |
1c57e86d EC |
251 | ARCMSR_MAX_FREECCB_NUM * |
252 | sizeof (struct CommandControlBlock) + 0x20, | |
253 | &dma_coherent_handle, GFP_KERNEL); | |
db3a91fe AV |
254 | |
255 | if (!dma_coherent) { | |
256 | iounmap(acb->pmuA); | |
1a4f550a | 257 | return -ENOMEM; |
db3a91fe | 258 | } |
1c57e86d | 259 | |
1a4f550a NC |
260 | acb->dma_coherent = dma_coherent; |
261 | acb->dma_coherent_handle = dma_coherent_handle; | |
1c57e86d | 262 | |
1a4f550a NC |
263 | if (((unsigned long)dma_coherent & 0x1F)) { |
264 | dma_coherent = dma_coherent + | |
265 | (0x20 - ((unsigned long)dma_coherent & 0x1F)); | |
266 | dma_coherent_handle = dma_coherent_handle + | |
267 | (0x20 - ((unsigned long)dma_coherent_handle & 0x1F)); | |
268 | } | |
1c57e86d | 269 | |
1a4f550a NC |
270 | dma_addr = dma_coherent_handle; |
271 | ccb_tmp = (struct CommandControlBlock *)dma_coherent; | |
272 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { | |
273 | ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5; | |
274 | ccb_tmp->acb = acb; | |
275 | acb->pccb_pool[i] = ccb_tmp; | |
276 | list_add_tail(&ccb_tmp->list, &acb->ccb_free_list); | |
277 | dma_addr = dma_addr + sizeof(struct CommandControlBlock); | |
278 | ccb_tmp++; | |
279 | } | |
1c57e86d | 280 | |
1a4f550a NC |
281 | acb->vir2phy_offset = (unsigned long)ccb_tmp -(unsigned long)dma_addr; |
282 | for (i = 0; i < ARCMSR_MAX_TARGETID; i++) | |
283 | for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++) | |
284 | acb->devstate[i][j] = ARECA_RAID_GONE; | |
1a4f550a NC |
285 | } |
286 | break; | |
287 | ||
288 | case ACB_ADAPTER_TYPE_B: { | |
289 | ||
290 | struct pci_dev *pdev = acb->pdev; | |
291 | struct MessageUnit_B *reg; | |
80da1adb | 292 | void __iomem *mem_base0, *mem_base1; |
1a4f550a NC |
293 | void *dma_coherent; |
294 | dma_addr_t dma_coherent_handle, dma_addr; | |
1a4f550a NC |
295 | struct CommandControlBlock *ccb_tmp; |
296 | int i, j; | |
297 | ||
298 | dma_coherent = dma_alloc_coherent(&pdev->dev, | |
299 | ((ARCMSR_MAX_FREECCB_NUM * | |
300 | sizeof(struct CommandControlBlock) + 0x20) + | |
301 | sizeof(struct MessageUnit_B)), | |
302 | &dma_coherent_handle, GFP_KERNEL); | |
303 | if (!dma_coherent) | |
304 | return -ENOMEM; | |
305 | ||
306 | acb->dma_coherent = dma_coherent; | |
307 | acb->dma_coherent_handle = dma_coherent_handle; | |
308 | ||
309 | if (((unsigned long)dma_coherent & 0x1F)) { | |
310 | dma_coherent = dma_coherent + | |
311 | (0x20 - ((unsigned long)dma_coherent & 0x1F)); | |
312 | dma_coherent_handle = dma_coherent_handle + | |
313 | (0x20 - ((unsigned long)dma_coherent_handle & 0x1F)); | |
314 | } | |
315 | ||
1a4f550a NC |
316 | dma_addr = dma_coherent_handle; |
317 | ccb_tmp = (struct CommandControlBlock *)dma_coherent; | |
318 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { | |
319 | ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5; | |
320 | ccb_tmp->acb = acb; | |
321 | acb->pccb_pool[i] = ccb_tmp; | |
322 | list_add_tail(&ccb_tmp->list, &acb->ccb_free_list); | |
323 | dma_addr = dma_addr + sizeof(struct CommandControlBlock); | |
324 | ccb_tmp++; | |
325 | } | |
326 | ||
327 | reg = (struct MessageUnit_B *)(dma_coherent + | |
328 | ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock)); | |
80da1adb | 329 | acb->pmuB = reg; |
36b83ded NC |
330 | mem_base0 = ioremap(pci_resource_start(pdev, 0), |
331 | pci_resource_len(pdev, 0)); | |
db3a91fe AV |
332 | if (!mem_base0) |
333 | goto out; | |
334 | ||
36b83ded NC |
335 | mem_base1 = ioremap(pci_resource_start(pdev, 2), |
336 | pci_resource_len(pdev, 2)); | |
db3a91fe AV |
337 | if (!mem_base1) { |
338 | iounmap(mem_base0); | |
339 | goto out; | |
340 | } | |
341 | ||
80da1adb AV |
342 | reg->drv2iop_doorbell_reg = mem_base0 + ARCMSR_DRV2IOP_DOORBELL; |
343 | reg->drv2iop_doorbell_mask_reg = mem_base0 + | |
344 | ARCMSR_DRV2IOP_DOORBELL_MASK; | |
345 | reg->iop2drv_doorbell_reg = mem_base0 + ARCMSR_IOP2DRV_DOORBELL; | |
346 | reg->iop2drv_doorbell_mask_reg = mem_base0 + | |
347 | ARCMSR_IOP2DRV_DOORBELL_MASK; | |
348 | reg->ioctl_wbuffer_reg = mem_base1 + ARCMSR_IOCTL_WBUFFER; | |
349 | reg->ioctl_rbuffer_reg = mem_base1 + ARCMSR_IOCTL_RBUFFER; | |
350 | reg->msgcode_rwbuffer_reg = mem_base1 + ARCMSR_MSGCODE_RWBUFFER; | |
1a4f550a NC |
351 | |
352 | acb->vir2phy_offset = (unsigned long)ccb_tmp -(unsigned long)dma_addr; | |
353 | for (i = 0; i < ARCMSR_MAX_TARGETID; i++) | |
354 | for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++) | |
355 | acb->devstate[i][j] = ARECA_RAID_GOOD; | |
1a4f550a NC |
356 | } |
357 | break; | |
358 | } | |
1c57e86d | 359 | return 0; |
db3a91fe AV |
360 | |
361 | out: | |
362 | dma_free_coherent(&acb->pdev->dev, | |
76d78300 NC |
363 | (ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock) + 0x20 + |
364 | sizeof(struct MessageUnit_B)), acb->dma_coherent, acb->dma_coherent_handle); | |
db3a91fe | 365 | return -ENOMEM; |
1c57e86d | 366 | } |
36b83ded NC |
367 | static void arcmsr_message_isr_bh_fn(struct work_struct *work) |
368 | { | |
369 | struct AdapterControlBlock *acb = container_of(work, struct AdapterControlBlock, arcmsr_do_message_isr_bh); | |
370 | ||
371 | switch (acb->adapter_type) { | |
372 | case ACB_ADAPTER_TYPE_A: { | |
373 | ||
374 | struct MessageUnit_A __iomem *reg = acb->pmuA; | |
375 | char *acb_dev_map = (char *)acb->device_map; | |
376 | uint32_t __iomem *signature = (uint32_t __iomem *) (®->message_rwbuffer[0]); | |
377 | char __iomem *devicemap = (char __iomem *) (®->message_rwbuffer[21]); | |
378 | int target, lun; | |
379 | struct scsi_device *psdev; | |
380 | char diff; | |
381 | ||
382 | atomic_inc(&acb->rq_map_token); | |
383 | if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) { | |
384 | for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) { | |
385 | diff = (*acb_dev_map)^readb(devicemap); | |
386 | if (diff != 0) { | |
387 | char temp; | |
388 | *acb_dev_map = readb(devicemap); | |
389 | temp = *acb_dev_map; | |
390 | for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) { | |
391 | if ((temp & 0x01) == 1 && (diff & 0x01) == 1) { | |
392 | scsi_add_device(acb->host, 0, target, lun); | |
393 | } else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) { | |
394 | psdev = scsi_device_lookup(acb->host, 0, target, lun); | |
395 | if (psdev != NULL) { | |
396 | scsi_remove_device(psdev); | |
397 | scsi_device_put(psdev); | |
398 | } | |
399 | } | |
400 | temp >>= 1; | |
401 | diff >>= 1; | |
402 | } | |
403 | } | |
404 | devicemap++; | |
405 | acb_dev_map++; | |
406 | } | |
407 | } | |
408 | break; | |
409 | } | |
410 | ||
411 | case ACB_ADAPTER_TYPE_B: { | |
412 | struct MessageUnit_B *reg = acb->pmuB; | |
413 | char *acb_dev_map = (char *)acb->device_map; | |
414 | uint32_t __iomem *signature = (uint32_t __iomem *)(®->msgcode_rwbuffer_reg[0]); | |
415 | char __iomem *devicemap = (char __iomem *)(®->msgcode_rwbuffer_reg[21]); | |
416 | int target, lun; | |
417 | struct scsi_device *psdev; | |
418 | char diff; | |
419 | ||
420 | atomic_inc(&acb->rq_map_token); | |
421 | if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) { | |
422 | for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) { | |
423 | diff = (*acb_dev_map)^readb(devicemap); | |
424 | if (diff != 0) { | |
425 | char temp; | |
426 | *acb_dev_map = readb(devicemap); | |
427 | temp = *acb_dev_map; | |
428 | for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) { | |
429 | if ((temp & 0x01) == 1 && (diff & 0x01) == 1) { | |
430 | scsi_add_device(acb->host, 0, target, lun); | |
431 | } else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) { | |
432 | psdev = scsi_device_lookup(acb->host, 0, target, lun); | |
433 | if (psdev != NULL) { | |
434 | scsi_remove_device(psdev); | |
435 | scsi_device_put(psdev); | |
436 | } | |
437 | } | |
438 | temp >>= 1; | |
439 | diff >>= 1; | |
440 | } | |
441 | } | |
442 | devicemap++; | |
443 | acb_dev_map++; | |
444 | } | |
445 | } | |
446 | } | |
447 | } | |
448 | } | |
1c57e86d EC |
449 | |
450 | static int arcmsr_probe(struct pci_dev *pdev, | |
451 | const struct pci_device_id *id) | |
452 | { | |
453 | struct Scsi_Host *host; | |
454 | struct AdapterControlBlock *acb; | |
455 | uint8_t bus, dev_fun; | |
456 | int error; | |
457 | ||
458 | error = pci_enable_device(pdev); | |
459 | if (error) | |
460 | goto out; | |
461 | pci_set_master(pdev); | |
462 | ||
463 | host = scsi_host_alloc(&arcmsr_scsi_host_template, | |
464 | sizeof(struct AdapterControlBlock)); | |
465 | if (!host) { | |
466 | error = -ENOMEM; | |
467 | goto out_disable_device; | |
468 | } | |
469 | acb = (struct AdapterControlBlock *)host->hostdata; | |
470 | memset(acb, 0, sizeof (struct AdapterControlBlock)); | |
471 | ||
6a35528a | 472 | error = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
1c57e86d | 473 | if (error) { |
284901a9 | 474 | error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
1c57e86d EC |
475 | if (error) { |
476 | printk(KERN_WARNING | |
477 | "scsi%d: No suitable DMA mask available\n", | |
478 | host->host_no); | |
479 | goto out_host_put; | |
480 | } | |
481 | } | |
482 | bus = pdev->bus->number; | |
483 | dev_fun = pdev->devfn; | |
484 | acb->host = host; | |
485 | acb->pdev = pdev; | |
486 | host->max_sectors = ARCMSR_MAX_XFER_SECTORS; | |
487 | host->max_lun = ARCMSR_MAX_TARGETLUN; | |
488 | host->max_id = ARCMSR_MAX_TARGETID;/*16:8*/ | |
489 | host->max_cmd_len = 16; /*this is issue of 64bit LBA, over 2T byte*/ | |
490 | host->sg_tablesize = ARCMSR_MAX_SG_ENTRIES; | |
491 | host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds */ | |
492 | host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN; | |
493 | host->this_id = ARCMSR_SCSI_INITIATOR_ID; | |
494 | host->unique_id = (bus << 8) | dev_fun; | |
495 | host->irq = pdev->irq; | |
496 | error = pci_request_regions(pdev, "arcmsr"); | |
1a4f550a | 497 | if (error) { |
1c57e86d | 498 | goto out_host_put; |
1c57e86d | 499 | } |
1a4f550a NC |
500 | arcmsr_define_adapter_type(acb); |
501 | ||
1c57e86d EC |
502 | acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED | |
503 | ACB_F_MESSAGE_RQBUFFER_CLEARED | | |
504 | ACB_F_MESSAGE_WQBUFFER_READED); | |
505 | acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER; | |
506 | INIT_LIST_HEAD(&acb->ccb_free_list); | |
36b83ded | 507 | INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn); |
1c57e86d EC |
508 | error = arcmsr_alloc_ccb_pool(acb); |
509 | if (error) | |
1a4f550a | 510 | goto out_release_regions; |
1c57e86d | 511 | |
36b83ded | 512 | arcmsr_iop_init(acb); |
1c57e86d | 513 | error = request_irq(pdev->irq, arcmsr_do_interrupt, |
488a5c8a | 514 | IRQF_SHARED, "arcmsr", acb); |
1c57e86d EC |
515 | if (error) |
516 | goto out_free_ccb_pool; | |
517 | ||
1c57e86d | 518 | pci_set_drvdata(pdev, host); |
a1f6e021 | 519 | if (strncmp(acb->firm_version, "V1.42", 5) >= 0) |
520 | host->max_sectors= ARCMSR_MAX_XFER_SECTORS_B; | |
1c57e86d EC |
521 | |
522 | error = scsi_add_host(host, &pdev->dev); | |
523 | if (error) | |
524 | goto out_free_irq; | |
525 | ||
526 | error = arcmsr_alloc_sysfs_attr(acb); | |
527 | if (error) | |
528 | goto out_free_sysfs; | |
529 | ||
530 | scsi_scan_host(host); | |
1a4f550a | 531 | #ifdef CONFIG_SCSI_ARCMSR_AER |
a1f6e021 | 532 | pci_enable_pcie_error_reporting(pdev); |
1a4f550a | 533 | #endif |
36b83ded NC |
534 | atomic_set(&acb->rq_map_token, 16); |
535 | acb->fw_state = true; | |
536 | init_timer(&acb->eternal_timer); | |
537 | acb->eternal_timer.expires = jiffies + msecs_to_jiffies(10*HZ); | |
538 | acb->eternal_timer.data = (unsigned long) acb; | |
539 | acb->eternal_timer.function = &arcmsr_request_device_map; | |
540 | add_timer(&acb->eternal_timer); | |
541 | ||
1c57e86d EC |
542 | return 0; |
543 | out_free_sysfs: | |
544 | out_free_irq: | |
545 | free_irq(pdev->irq, acb); | |
546 | out_free_ccb_pool: | |
547 | arcmsr_free_ccb_pool(acb); | |
1c57e86d EC |
548 | out_release_regions: |
549 | pci_release_regions(pdev); | |
550 | out_host_put: | |
551 | scsi_host_put(host); | |
552 | out_disable_device: | |
553 | pci_disable_device(pdev); | |
554 | out: | |
555 | return error; | |
556 | } | |
557 | ||
1a4f550a NC |
558 | static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb) |
559 | { | |
80da1adb | 560 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
561 | uint32_t Index; |
562 | uint8_t Retries = 0x00; | |
563 | ||
564 | do { | |
565 | for (Index = 0; Index < 100; Index++) { | |
566 | if (readl(®->outbound_intstatus) & | |
567 | ARCMSR_MU_OUTBOUND_MESSAGE0_INT) { | |
568 | writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, | |
569 | ®->outbound_intstatus); | |
570 | return 0x00; | |
571 | } | |
572 | msleep(10); | |
573 | }/*max 1 seconds*/ | |
574 | ||
575 | } while (Retries++ < 20);/*max 20 sec*/ | |
576 | return 0xff; | |
577 | } | |
578 | ||
579 | static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb) | |
580 | { | |
80da1adb | 581 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
582 | uint32_t Index; |
583 | uint8_t Retries = 0x00; | |
584 | ||
585 | do { | |
586 | for (Index = 0; Index < 100; Index++) { | |
587 | if (readl(reg->iop2drv_doorbell_reg) | |
588 | & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) { | |
589 | writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN | |
590 | , reg->iop2drv_doorbell_reg); | |
76d78300 | 591 | writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell_reg); |
1a4f550a NC |
592 | return 0x00; |
593 | } | |
594 | msleep(10); | |
595 | }/*max 1 seconds*/ | |
596 | ||
597 | } while (Retries++ < 20);/*max 20 sec*/ | |
598 | return 0xff; | |
599 | } | |
600 | ||
36b83ded | 601 | static uint8_t arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb) |
1c57e86d | 602 | { |
80da1adb | 603 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1c57e86d EC |
604 | |
605 | writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, ®->inbound_msgaddr0); | |
36b83ded | 606 | if (arcmsr_hba_wait_msgint_ready(acb)) { |
1a4f550a NC |
607 | printk(KERN_NOTICE |
608 | "arcmsr%d: wait 'abort all outstanding command' timeout \n" | |
609 | , acb->host->host_no); | |
36b83ded NC |
610 | return 0xff; |
611 | } | |
612 | return 0x00; | |
1a4f550a NC |
613 | } |
614 | ||
36b83ded | 615 | static uint8_t arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb) |
1a4f550a | 616 | { |
80da1adb | 617 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
618 | |
619 | writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell_reg); | |
36b83ded | 620 | if (arcmsr_hbb_wait_msgint_ready(acb)) { |
1c57e86d EC |
621 | printk(KERN_NOTICE |
622 | "arcmsr%d: wait 'abort all outstanding command' timeout \n" | |
623 | , acb->host->host_no); | |
36b83ded NC |
624 | return 0xff; |
625 | } | |
626 | return 0x00; | |
1c57e86d EC |
627 | } |
628 | ||
36b83ded | 629 | static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb) |
1a4f550a | 630 | { |
36b83ded | 631 | uint8_t rtnval = 0; |
1a4f550a NC |
632 | switch (acb->adapter_type) { |
633 | case ACB_ADAPTER_TYPE_A: { | |
36b83ded | 634 | rtnval = arcmsr_abort_hba_allcmd(acb); |
1a4f550a NC |
635 | } |
636 | break; | |
637 | ||
638 | case ACB_ADAPTER_TYPE_B: { | |
36b83ded | 639 | rtnval = arcmsr_abort_hbb_allcmd(acb); |
1a4f550a NC |
640 | } |
641 | } | |
36b83ded | 642 | return rtnval; |
1a4f550a NC |
643 | } |
644 | ||
1c57e86d EC |
645 | static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb) |
646 | { | |
1c57e86d EC |
647 | struct scsi_cmnd *pcmd = ccb->pcmd; |
648 | ||
deff2627 | 649 | scsi_dma_unmap(pcmd); |
1c57e86d EC |
650 | } |
651 | ||
652 | static void arcmsr_ccb_complete(struct CommandControlBlock *ccb, int stand_flag) | |
653 | { | |
654 | struct AdapterControlBlock *acb = ccb->acb; | |
655 | struct scsi_cmnd *pcmd = ccb->pcmd; | |
656 | ||
657 | arcmsr_pci_unmap_dma(ccb); | |
658 | if (stand_flag == 1) | |
659 | atomic_dec(&acb->ccboutstandingcount); | |
660 | ccb->startdone = ARCMSR_CCB_DONE; | |
661 | ccb->ccb_flags = 0; | |
662 | list_add_tail(&ccb->list, &acb->ccb_free_list); | |
663 | pcmd->scsi_done(pcmd); | |
664 | } | |
665 | ||
1a4f550a NC |
666 | static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb) |
667 | { | |
80da1adb | 668 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
669 | int retry_count = 30; |
670 | ||
671 | writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0); | |
672 | do { | |
673 | if (!arcmsr_hba_wait_msgint_ready(acb)) | |
674 | break; | |
675 | else { | |
676 | retry_count--; | |
677 | printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \ | |
678 | timeout, retry count down = %d \n", acb->host->host_no, retry_count); | |
679 | } | |
680 | } while (retry_count != 0); | |
681 | } | |
682 | ||
683 | static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb) | |
684 | { | |
80da1adb | 685 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
686 | int retry_count = 30; |
687 | ||
688 | writel(ARCMSR_MESSAGE_FLUSH_CACHE, reg->drv2iop_doorbell_reg); | |
689 | do { | |
690 | if (!arcmsr_hbb_wait_msgint_ready(acb)) | |
691 | break; | |
692 | else { | |
693 | retry_count--; | |
694 | printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter cache' \ | |
695 | timeout,retry count down = %d \n", acb->host->host_no, retry_count); | |
696 | } | |
697 | } while (retry_count != 0); | |
698 | } | |
699 | ||
700 | static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb) | |
701 | { | |
702 | switch (acb->adapter_type) { | |
703 | ||
704 | case ACB_ADAPTER_TYPE_A: { | |
705 | arcmsr_flush_hba_cache(acb); | |
706 | } | |
707 | break; | |
708 | ||
709 | case ACB_ADAPTER_TYPE_B: { | |
710 | arcmsr_flush_hbb_cache(acb); | |
711 | } | |
712 | } | |
713 | } | |
714 | ||
715 | static void arcmsr_report_sense_info(struct CommandControlBlock *ccb) | |
716 | { | |
717 | ||
718 | struct scsi_cmnd *pcmd = ccb->pcmd; | |
719 | struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer; | |
720 | ||
721 | pcmd->result = DID_OK << 16; | |
722 | if (sensebuffer) { | |
723 | int sense_data_length = | |
b80ca4f7 FT |
724 | sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE |
725 | ? sizeof(struct SENSE_DATA) : SCSI_SENSE_BUFFERSIZE; | |
726 | memset(sensebuffer, 0, SCSI_SENSE_BUFFERSIZE); | |
1a4f550a NC |
727 | memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length); |
728 | sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS; | |
729 | sensebuffer->Valid = 1; | |
730 | } | |
731 | } | |
732 | ||
733 | static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb) | |
734 | { | |
735 | u32 orig_mask = 0; | |
736 | switch (acb->adapter_type) { | |
737 | ||
738 | case ACB_ADAPTER_TYPE_A : { | |
80da1adb | 739 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
36b83ded | 740 | orig_mask = readl(®->outbound_intmask); |
1a4f550a NC |
741 | writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \ |
742 | ®->outbound_intmask); | |
743 | } | |
744 | break; | |
745 | ||
746 | case ACB_ADAPTER_TYPE_B : { | |
80da1adb | 747 | struct MessageUnit_B *reg = acb->pmuB; |
36b83ded | 748 | orig_mask = readl(reg->iop2drv_doorbell_mask_reg); |
1a4f550a NC |
749 | writel(0, reg->iop2drv_doorbell_mask_reg); |
750 | } | |
751 | break; | |
752 | } | |
753 | return orig_mask; | |
754 | } | |
755 | ||
756 | static void arcmsr_report_ccb_state(struct AdapterControlBlock *acb, \ | |
757 | struct CommandControlBlock *ccb, uint32_t flag_ccb) | |
758 | { | |
759 | ||
760 | uint8_t id, lun; | |
761 | id = ccb->pcmd->device->id; | |
762 | lun = ccb->pcmd->device->lun; | |
763 | if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) { | |
764 | if (acb->devstate[id][lun] == ARECA_RAID_GONE) | |
765 | acb->devstate[id][lun] = ARECA_RAID_GOOD; | |
766 | ccb->pcmd->result = DID_OK << 16; | |
767 | arcmsr_ccb_complete(ccb, 1); | |
768 | } else { | |
769 | switch (ccb->arcmsr_cdb.DeviceStatus) { | |
770 | case ARCMSR_DEV_SELECT_TIMEOUT: { | |
771 | acb->devstate[id][lun] = ARECA_RAID_GONE; | |
772 | ccb->pcmd->result = DID_NO_CONNECT << 16; | |
773 | arcmsr_ccb_complete(ccb, 1); | |
774 | } | |
775 | break; | |
776 | ||
777 | case ARCMSR_DEV_ABORTED: | |
778 | ||
779 | case ARCMSR_DEV_INIT_FAIL: { | |
780 | acb->devstate[id][lun] = ARECA_RAID_GONE; | |
781 | ccb->pcmd->result = DID_BAD_TARGET << 16; | |
782 | arcmsr_ccb_complete(ccb, 1); | |
783 | } | |
784 | break; | |
785 | ||
786 | case ARCMSR_DEV_CHECK_CONDITION: { | |
787 | acb->devstate[id][lun] = ARECA_RAID_GOOD; | |
788 | arcmsr_report_sense_info(ccb); | |
789 | arcmsr_ccb_complete(ccb, 1); | |
790 | } | |
791 | break; | |
792 | ||
793 | default: | |
794 | printk(KERN_NOTICE | |
795 | "arcmsr%d: scsi id = %d lun = %d" | |
796 | " isr get command error done, " | |
797 | "but got unknown DeviceStatus = 0x%x \n" | |
798 | , acb->host->host_no | |
799 | , id | |
800 | , lun | |
801 | , ccb->arcmsr_cdb.DeviceStatus); | |
802 | acb->devstate[id][lun] = ARECA_RAID_GONE; | |
803 | ccb->pcmd->result = DID_NO_CONNECT << 16; | |
804 | arcmsr_ccb_complete(ccb, 1); | |
805 | break; | |
806 | } | |
807 | } | |
808 | } | |
809 | ||
810 | static void arcmsr_drain_donequeue(struct AdapterControlBlock *acb, uint32_t flag_ccb) | |
811 | ||
812 | { | |
813 | struct CommandControlBlock *ccb; | |
814 | ||
815 | ccb = (struct CommandControlBlock *)(acb->vir2phy_offset + (flag_ccb << 5)); | |
816 | if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) { | |
817 | if (ccb->startdone == ARCMSR_CCB_ABORTED) { | |
818 | struct scsi_cmnd *abortcmd = ccb->pcmd; | |
819 | if (abortcmd) { | |
820 | abortcmd->result |= DID_ABORT << 16; | |
821 | arcmsr_ccb_complete(ccb, 1); | |
822 | printk(KERN_NOTICE "arcmsr%d: ccb ='0x%p' \ | |
823 | isr got aborted command \n", acb->host->host_no, ccb); | |
824 | } | |
825 | } | |
826 | printk(KERN_NOTICE "arcmsr%d: isr get an illegal ccb command \ | |
827 | done acb = '0x%p'" | |
828 | "ccb = '0x%p' ccbacb = '0x%p' startdone = 0x%x" | |
829 | " ccboutstandingcount = %d \n" | |
830 | , acb->host->host_no | |
831 | , acb | |
832 | , ccb | |
833 | , ccb->acb | |
834 | , ccb->startdone | |
835 | , atomic_read(&acb->ccboutstandingcount)); | |
836 | } | |
76d78300 | 837 | else |
1a4f550a NC |
838 | arcmsr_report_ccb_state(acb, ccb, flag_ccb); |
839 | } | |
840 | ||
841 | static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb) | |
842 | { | |
843 | int i = 0; | |
844 | uint32_t flag_ccb; | |
845 | ||
846 | switch (acb->adapter_type) { | |
847 | ||
848 | case ACB_ADAPTER_TYPE_A: { | |
80da1adb | 849 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a | 850 | uint32_t outbound_intstatus; |
80da1adb | 851 | outbound_intstatus = readl(®->outbound_intstatus) & |
1a4f550a NC |
852 | acb->outbound_int_enable; |
853 | /*clear and abort all outbound posted Q*/ | |
854 | writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/ | |
80da1adb | 855 | while (((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) |
1a4f550a NC |
856 | && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) { |
857 | arcmsr_drain_donequeue(acb, flag_ccb); | |
858 | } | |
859 | } | |
860 | break; | |
861 | ||
862 | case ACB_ADAPTER_TYPE_B: { | |
80da1adb | 863 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
864 | /*clear all outbound posted Q*/ |
865 | for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) { | |
866 | if ((flag_ccb = readl(®->done_qbuffer[i])) != 0) { | |
867 | writel(0, ®->done_qbuffer[i]); | |
868 | arcmsr_drain_donequeue(acb, flag_ccb); | |
869 | } | |
870 | writel(0, ®->post_qbuffer[i]); | |
871 | } | |
872 | reg->doneq_index = 0; | |
873 | reg->postq_index = 0; | |
874 | } | |
875 | break; | |
876 | } | |
877 | } | |
1c57e86d EC |
878 | static void arcmsr_remove(struct pci_dev *pdev) |
879 | { | |
880 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
881 | struct AdapterControlBlock *acb = | |
882 | (struct AdapterControlBlock *) host->hostdata; | |
1c57e86d | 883 | int poll_count = 0; |
1c57e86d EC |
884 | arcmsr_free_sysfs_attr(acb); |
885 | scsi_remove_host(host); | |
36b83ded NC |
886 | flush_scheduled_work(); |
887 | del_timer_sync(&acb->eternal_timer); | |
888 | arcmsr_disable_outbound_ints(acb); | |
1c57e86d EC |
889 | arcmsr_stop_adapter_bgrb(acb); |
890 | arcmsr_flush_adapter_cache(acb); | |
1c57e86d EC |
891 | acb->acb_flags |= ACB_F_SCSISTOPADAPTER; |
892 | acb->acb_flags &= ~ACB_F_IOP_INITED; | |
893 | ||
1a4f550a | 894 | for (poll_count = 0; poll_count < ARCMSR_MAX_OUTSTANDING_CMD; poll_count++) { |
1c57e86d EC |
895 | if (!atomic_read(&acb->ccboutstandingcount)) |
896 | break; | |
1a4f550a | 897 | arcmsr_interrupt(acb);/* FIXME: need spinlock */ |
1c57e86d EC |
898 | msleep(25); |
899 | } | |
900 | ||
901 | if (atomic_read(&acb->ccboutstandingcount)) { | |
902 | int i; | |
903 | ||
904 | arcmsr_abort_allcmd(acb); | |
1a4f550a | 905 | arcmsr_done4abort_postqueue(acb); |
1c57e86d EC |
906 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { |
907 | struct CommandControlBlock *ccb = acb->pccb_pool[i]; | |
908 | if (ccb->startdone == ARCMSR_CCB_START) { | |
909 | ccb->startdone = ARCMSR_CCB_ABORTED; | |
910 | ccb->pcmd->result = DID_ABORT << 16; | |
911 | arcmsr_ccb_complete(ccb, 1); | |
912 | } | |
913 | } | |
914 | } | |
915 | ||
916 | free_irq(pdev->irq, acb); | |
1c57e86d EC |
917 | arcmsr_free_ccb_pool(acb); |
918 | pci_release_regions(pdev); | |
919 | ||
920 | scsi_host_put(host); | |
921 | ||
922 | pci_disable_device(pdev); | |
923 | pci_set_drvdata(pdev, NULL); | |
924 | } | |
925 | ||
926 | static void arcmsr_shutdown(struct pci_dev *pdev) | |
927 | { | |
928 | struct Scsi_Host *host = pci_get_drvdata(pdev); | |
929 | struct AdapterControlBlock *acb = | |
930 | (struct AdapterControlBlock *)host->hostdata; | |
36b83ded NC |
931 | del_timer_sync(&acb->eternal_timer); |
932 | arcmsr_disable_outbound_ints(acb); | |
933 | flush_scheduled_work(); | |
1c57e86d EC |
934 | arcmsr_stop_adapter_bgrb(acb); |
935 | arcmsr_flush_adapter_cache(acb); | |
936 | } | |
937 | ||
938 | static int arcmsr_module_init(void) | |
939 | { | |
940 | int error = 0; | |
941 | ||
942 | error = pci_register_driver(&arcmsr_pci_driver); | |
943 | return error; | |
944 | } | |
945 | ||
946 | static void arcmsr_module_exit(void) | |
947 | { | |
948 | pci_unregister_driver(&arcmsr_pci_driver); | |
949 | } | |
950 | module_init(arcmsr_module_init); | |
951 | module_exit(arcmsr_module_exit); | |
952 | ||
36b83ded | 953 | static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, |
1a4f550a | 954 | u32 intmask_org) |
1c57e86d | 955 | { |
1c57e86d EC |
956 | u32 mask; |
957 | ||
1a4f550a | 958 | switch (acb->adapter_type) { |
1c57e86d | 959 | |
1a4f550a | 960 | case ACB_ADAPTER_TYPE_A : { |
80da1adb | 961 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a | 962 | mask = intmask_org & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE | |
36b83ded NC |
963 | ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE| |
964 | ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE); | |
1a4f550a NC |
965 | writel(mask, ®->outbound_intmask); |
966 | acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff; | |
967 | } | |
968 | break; | |
1c57e86d | 969 | |
1a4f550a | 970 | case ACB_ADAPTER_TYPE_B : { |
80da1adb | 971 | struct MessageUnit_B *reg = acb->pmuB; |
36b83ded NC |
972 | mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK | |
973 | ARCMSR_IOP2DRV_DATA_READ_OK | | |
974 | ARCMSR_IOP2DRV_CDB_DONE | | |
975 | ARCMSR_IOP2DRV_MESSAGE_CMD_DONE); | |
1a4f550a NC |
976 | writel(mask, reg->iop2drv_doorbell_mask_reg); |
977 | acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f; | |
978 | } | |
1c57e86d EC |
979 | } |
980 | } | |
981 | ||
76d78300 | 982 | static int arcmsr_build_ccb(struct AdapterControlBlock *acb, |
1a4f550a | 983 | struct CommandControlBlock *ccb, struct scsi_cmnd *pcmd) |
1c57e86d | 984 | { |
1a4f550a NC |
985 | struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb; |
986 | int8_t *psge = (int8_t *)&arcmsr_cdb->u; | |
80da1adb | 987 | __le32 address_lo, address_hi; |
1a4f550a NC |
988 | int arccdbsize = 0x30; |
989 | int nseg; | |
1c57e86d EC |
990 | |
991 | ccb->pcmd = pcmd; | |
1a4f550a | 992 | memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB)); |
1c57e86d EC |
993 | arcmsr_cdb->Bus = 0; |
994 | arcmsr_cdb->TargetID = pcmd->device->id; | |
995 | arcmsr_cdb->LUN = pcmd->device->lun; | |
996 | arcmsr_cdb->Function = 1; | |
997 | arcmsr_cdb->CdbLength = (uint8_t)pcmd->cmd_len; | |
998 | arcmsr_cdb->Context = (unsigned long)arcmsr_cdb; | |
999 | memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len); | |
deff2627 FT |
1000 | |
1001 | nseg = scsi_dma_map(pcmd); | |
76d78300 NC |
1002 | if (nseg > ARCMSR_MAX_SG_ENTRIES) |
1003 | return FAILED; | |
deff2627 FT |
1004 | BUG_ON(nseg < 0); |
1005 | ||
1006 | if (nseg) { | |
80da1adb AV |
1007 | __le32 length; |
1008 | int i, cdb_sgcount = 0; | |
deff2627 FT |
1009 | struct scatterlist *sg; |
1010 | ||
1c57e86d | 1011 | /* map stor port SG list to our iop SG List. */ |
deff2627 | 1012 | scsi_for_each_sg(pcmd, sg, nseg, i) { |
1c57e86d | 1013 | /* Get the physical address of the current data pointer */ |
deff2627 FT |
1014 | length = cpu_to_le32(sg_dma_len(sg)); |
1015 | address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg))); | |
1016 | address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg))); | |
1c57e86d EC |
1017 | if (address_hi == 0) { |
1018 | struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge; | |
1019 | ||
1020 | pdma_sg->address = address_lo; | |
1021 | pdma_sg->length = length; | |
1022 | psge += sizeof (struct SG32ENTRY); | |
1023 | arccdbsize += sizeof (struct SG32ENTRY); | |
1024 | } else { | |
1025 | struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge; | |
1026 | ||
1027 | pdma_sg->addresshigh = address_hi; | |
1028 | pdma_sg->address = address_lo; | |
6a7d26d5 | 1029 | pdma_sg->length = length|cpu_to_le32(IS_SG64_ADDR); |
1c57e86d EC |
1030 | psge += sizeof (struct SG64ENTRY); |
1031 | arccdbsize += sizeof (struct SG64ENTRY); | |
1032 | } | |
1c57e86d EC |
1033 | cdb_sgcount++; |
1034 | } | |
1035 | arcmsr_cdb->sgcount = (uint8_t)cdb_sgcount; | |
deff2627 | 1036 | arcmsr_cdb->DataLength = scsi_bufflen(pcmd); |
1c57e86d EC |
1037 | if ( arccdbsize > 256) |
1038 | arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE; | |
1c57e86d EC |
1039 | } |
1040 | if (pcmd->sc_data_direction == DMA_TO_DEVICE ) { | |
1041 | arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE; | |
1042 | ccb->ccb_flags |= CCB_FLAG_WRITE; | |
1043 | } | |
76d78300 | 1044 | return SUCCESS; |
1c57e86d EC |
1045 | } |
1046 | ||
1047 | static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandControlBlock *ccb) | |
1048 | { | |
1c57e86d EC |
1049 | uint32_t cdb_shifted_phyaddr = ccb->cdb_shifted_phyaddr; |
1050 | struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB *)&ccb->arcmsr_cdb; | |
1c57e86d EC |
1051 | atomic_inc(&acb->ccboutstandingcount); |
1052 | ccb->startdone = ARCMSR_CCB_START; | |
1a4f550a NC |
1053 | |
1054 | switch (acb->adapter_type) { | |
1055 | case ACB_ADAPTER_TYPE_A: { | |
80da1adb | 1056 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
1057 | |
1058 | if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) | |
1059 | writel(cdb_shifted_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE, | |
1c57e86d | 1060 | ®->inbound_queueport); |
1a4f550a NC |
1061 | else { |
1062 | writel(cdb_shifted_phyaddr, ®->inbound_queueport); | |
1063 | } | |
1064 | } | |
1065 | break; | |
1c57e86d | 1066 | |
1a4f550a | 1067 | case ACB_ADAPTER_TYPE_B: { |
80da1adb | 1068 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a | 1069 | uint32_t ending_index, index = reg->postq_index; |
1c57e86d | 1070 | |
1a4f550a NC |
1071 | ending_index = ((index + 1) % ARCMSR_MAX_HBB_POSTQUEUE); |
1072 | writel(0, ®->post_qbuffer[ending_index]); | |
1073 | if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) { | |
1074 | writel(cdb_shifted_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,\ | |
1075 | ®->post_qbuffer[index]); | |
1076 | } | |
1077 | else { | |
1078 | writel(cdb_shifted_phyaddr, ®->post_qbuffer[index]); | |
1079 | } | |
1080 | index++; | |
1081 | index %= ARCMSR_MAX_HBB_POSTQUEUE;/*if last index number set it to 0 */ | |
1082 | reg->postq_index = index; | |
1083 | writel(ARCMSR_DRV2IOP_CDB_POSTED, reg->drv2iop_doorbell_reg); | |
1c57e86d | 1084 | } |
1a4f550a | 1085 | break; |
1c57e86d EC |
1086 | } |
1087 | } | |
1088 | ||
1a4f550a | 1089 | static void arcmsr_stop_hba_bgrb(struct AdapterControlBlock *acb) |
1c57e86d | 1090 | { |
80da1adb | 1091 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1c57e86d EC |
1092 | acb->acb_flags &= ~ACB_F_MSG_START_BGRB; |
1093 | writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, ®->inbound_msgaddr0); | |
1a4f550a NC |
1094 | |
1095 | if (arcmsr_hba_wait_msgint_ready(acb)) { | |
1096 | printk(KERN_NOTICE | |
1097 | "arcmsr%d: wait 'stop adapter background rebulid' timeout \n" | |
1098 | , acb->host->host_no); | |
1099 | } | |
1100 | } | |
1101 | ||
1102 | static void arcmsr_stop_hbb_bgrb(struct AdapterControlBlock *acb) | |
1103 | { | |
80da1adb | 1104 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
1105 | acb->acb_flags &= ~ACB_F_MSG_START_BGRB; |
1106 | writel(ARCMSR_MESSAGE_STOP_BGRB, reg->drv2iop_doorbell_reg); | |
1107 | ||
1108 | if (arcmsr_hbb_wait_msgint_ready(acb)) { | |
1c57e86d EC |
1109 | printk(KERN_NOTICE |
1110 | "arcmsr%d: wait 'stop adapter background rebulid' timeout \n" | |
1111 | , acb->host->host_no); | |
1a4f550a NC |
1112 | } |
1113 | } | |
1114 | ||
1115 | static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb) | |
1116 | { | |
1117 | switch (acb->adapter_type) { | |
1118 | case ACB_ADAPTER_TYPE_A: { | |
1119 | arcmsr_stop_hba_bgrb(acb); | |
1120 | } | |
1121 | break; | |
1122 | ||
1123 | case ACB_ADAPTER_TYPE_B: { | |
1124 | arcmsr_stop_hbb_bgrb(acb); | |
1125 | } | |
1126 | break; | |
1127 | } | |
1c57e86d EC |
1128 | } |
1129 | ||
1130 | static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb) | |
1131 | { | |
db3a91fe AV |
1132 | switch (acb->adapter_type) { |
1133 | case ACB_ADAPTER_TYPE_A: { | |
1134 | iounmap(acb->pmuA); | |
76d78300 NC |
1135 | dma_free_coherent(&acb->pdev->dev, |
1136 | ARCMSR_MAX_FREECCB_NUM * sizeof (struct CommandControlBlock) + 0x20, | |
1137 | acb->dma_coherent, | |
1138 | acb->dma_coherent_handle); | |
db3a91fe AV |
1139 | break; |
1140 | } | |
1141 | case ACB_ADAPTER_TYPE_B: { | |
1142 | struct MessageUnit_B *reg = acb->pmuB; | |
36b83ded NC |
1143 | iounmap((u8 *)reg->drv2iop_doorbell_reg - ARCMSR_DRV2IOP_DOORBELL); |
1144 | iounmap((u8 *)reg->ioctl_wbuffer_reg - ARCMSR_IOCTL_WBUFFER); | |
76d78300 NC |
1145 | dma_free_coherent(&acb->pdev->dev, |
1146 | (ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock) + 0x20 + | |
1147 | sizeof(struct MessageUnit_B)), acb->dma_coherent, acb->dma_coherent_handle); | |
db3a91fe AV |
1148 | } |
1149 | } | |
76d78300 | 1150 | |
1c57e86d EC |
1151 | } |
1152 | ||
1a4f550a | 1153 | void arcmsr_iop_message_read(struct AdapterControlBlock *acb) |
1c57e86d | 1154 | { |
1a4f550a NC |
1155 | switch (acb->adapter_type) { |
1156 | case ACB_ADAPTER_TYPE_A: { | |
80da1adb | 1157 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
1158 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell); |
1159 | } | |
1160 | break; | |
1c57e86d | 1161 | |
1a4f550a | 1162 | case ACB_ADAPTER_TYPE_B: { |
80da1adb | 1163 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a | 1164 | writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell_reg); |
1c57e86d | 1165 | } |
1a4f550a | 1166 | break; |
1c57e86d | 1167 | } |
1a4f550a NC |
1168 | } |
1169 | ||
1170 | static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb) | |
1171 | { | |
1172 | switch (acb->adapter_type) { | |
1173 | case ACB_ADAPTER_TYPE_A: { | |
80da1adb | 1174 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1c57e86d | 1175 | /* |
1a4f550a NC |
1176 | ** push inbound doorbell tell iop, driver data write ok |
1177 | ** and wait reply on next hwinterrupt for next Qbuffer post | |
1c57e86d | 1178 | */ |
1a4f550a NC |
1179 | writel(ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK, ®->inbound_doorbell); |
1180 | } | |
1181 | break; | |
1182 | ||
1183 | case ACB_ADAPTER_TYPE_B: { | |
80da1adb | 1184 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
1185 | /* |
1186 | ** push inbound doorbell tell iop, driver data write ok | |
1187 | ** and wait reply on next hwinterrupt for next Qbuffer post | |
1188 | */ | |
1189 | writel(ARCMSR_DRV2IOP_DATA_WRITE_OK, reg->drv2iop_doorbell_reg); | |
1190 | } | |
1191 | break; | |
1192 | } | |
1193 | } | |
1194 | ||
80da1adb | 1195 | struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb) |
1a4f550a | 1196 | { |
0c7eb2eb | 1197 | struct QBUFFER __iomem *qbuffer = NULL; |
1a4f550a NC |
1198 | |
1199 | switch (acb->adapter_type) { | |
1200 | ||
1201 | case ACB_ADAPTER_TYPE_A: { | |
80da1adb AV |
1202 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1203 | qbuffer = (struct QBUFFER __iomem *)®->message_rbuffer; | |
1a4f550a NC |
1204 | } |
1205 | break; | |
1206 | ||
1207 | case ACB_ADAPTER_TYPE_B: { | |
80da1adb AV |
1208 | struct MessageUnit_B *reg = acb->pmuB; |
1209 | qbuffer = (struct QBUFFER __iomem *)reg->ioctl_rbuffer_reg; | |
1a4f550a NC |
1210 | } |
1211 | break; | |
1212 | } | |
1213 | return qbuffer; | |
1214 | } | |
1215 | ||
80da1adb | 1216 | static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBlock *acb) |
1a4f550a | 1217 | { |
0c7eb2eb | 1218 | struct QBUFFER __iomem *pqbuffer = NULL; |
1a4f550a NC |
1219 | |
1220 | switch (acb->adapter_type) { | |
1221 | ||
1222 | case ACB_ADAPTER_TYPE_A: { | |
80da1adb AV |
1223 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1224 | pqbuffer = (struct QBUFFER __iomem *) ®->message_wbuffer; | |
1a4f550a NC |
1225 | } |
1226 | break; | |
1227 | ||
1228 | case ACB_ADAPTER_TYPE_B: { | |
80da1adb | 1229 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
1230 | pqbuffer = (struct QBUFFER __iomem *)reg->ioctl_wbuffer_reg; |
1231 | } | |
1232 | break; | |
1233 | } | |
1234 | return pqbuffer; | |
1235 | } | |
1236 | ||
1237 | static void arcmsr_iop2drv_data_wrote_handle(struct AdapterControlBlock *acb) | |
1238 | { | |
80da1adb | 1239 | struct QBUFFER __iomem *prbuffer; |
1a4f550a | 1240 | struct QBUFFER *pQbuffer; |
80da1adb | 1241 | uint8_t __iomem *iop_data; |
1a4f550a NC |
1242 | int32_t my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex; |
1243 | ||
1244 | rqbuf_lastindex = acb->rqbuf_lastindex; | |
1245 | rqbuf_firstindex = acb->rqbuf_firstindex; | |
1246 | prbuffer = arcmsr_get_iop_rqbuffer(acb); | |
80da1adb | 1247 | iop_data = (uint8_t __iomem *)prbuffer->data; |
1a4f550a NC |
1248 | iop_len = prbuffer->data_len; |
1249 | my_empty_len = (rqbuf_firstindex - rqbuf_lastindex -1)&(ARCMSR_MAX_QBUFFER -1); | |
1250 | ||
1251 | if (my_empty_len >= iop_len) | |
1252 | { | |
1253 | while (iop_len > 0) { | |
1254 | pQbuffer = (struct QBUFFER *)&acb->rqbuffer[rqbuf_lastindex]; | |
1255 | memcpy(pQbuffer, iop_data,1); | |
1256 | rqbuf_lastindex++; | |
1257 | rqbuf_lastindex %= ARCMSR_MAX_QBUFFER; | |
1258 | iop_data++; | |
1259 | iop_len--; | |
1260 | } | |
1261 | acb->rqbuf_lastindex = rqbuf_lastindex; | |
1262 | arcmsr_iop_message_read(acb); | |
1263 | } | |
1264 | ||
1265 | else { | |
1266 | acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW; | |
1267 | } | |
1268 | } | |
1269 | ||
1270 | static void arcmsr_iop2drv_data_read_handle(struct AdapterControlBlock *acb) | |
1271 | { | |
1272 | acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED; | |
1273 | if (acb->wqbuf_firstindex != acb->wqbuf_lastindex) { | |
1274 | uint8_t *pQbuffer; | |
80da1adb AV |
1275 | struct QBUFFER __iomem *pwbuffer; |
1276 | uint8_t __iomem *iop_data; | |
1a4f550a NC |
1277 | int32_t allxfer_len = 0; |
1278 | ||
1279 | acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED); | |
1280 | pwbuffer = arcmsr_get_iop_wqbuffer(acb); | |
1281 | iop_data = (uint8_t __iomem *)pwbuffer->data; | |
1282 | ||
1283 | while ((acb->wqbuf_firstindex != acb->wqbuf_lastindex) && \ | |
1284 | (allxfer_len < 124)) { | |
1285 | pQbuffer = &acb->wqbuffer[acb->wqbuf_firstindex]; | |
1286 | memcpy(iop_data, pQbuffer, 1); | |
1287 | acb->wqbuf_firstindex++; | |
1288 | acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER; | |
1289 | iop_data++; | |
1290 | allxfer_len++; | |
1291 | } | |
1292 | pwbuffer->data_len = allxfer_len; | |
1293 | ||
1294 | arcmsr_iop_message_wrote(acb); | |
1295 | } | |
1296 | ||
1297 | if (acb->wqbuf_firstindex == acb->wqbuf_lastindex) { | |
1298 | acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED; | |
1299 | } | |
1300 | } | |
1301 | ||
1302 | static void arcmsr_hba_doorbell_isr(struct AdapterControlBlock *acb) | |
1303 | { | |
1304 | uint32_t outbound_doorbell; | |
80da1adb | 1305 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
1306 | |
1307 | outbound_doorbell = readl(®->outbound_doorbell); | |
1308 | writel(outbound_doorbell, ®->outbound_doorbell); | |
1309 | if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) { | |
1310 | arcmsr_iop2drv_data_wrote_handle(acb); | |
1311 | } | |
1312 | ||
1313 | if (outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) { | |
1314 | arcmsr_iop2drv_data_read_handle(acb); | |
1315 | } | |
1316 | } | |
1317 | ||
1318 | static void arcmsr_hba_postqueue_isr(struct AdapterControlBlock *acb) | |
1319 | { | |
1320 | uint32_t flag_ccb; | |
80da1adb | 1321 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
1322 | |
1323 | while ((flag_ccb = readl(®->outbound_queueport)) != 0xFFFFFFFF) { | |
1324 | arcmsr_drain_donequeue(acb, flag_ccb); | |
1325 | } | |
1326 | } | |
1327 | ||
1328 | static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb) | |
1329 | { | |
1330 | uint32_t index; | |
1331 | uint32_t flag_ccb; | |
80da1adb | 1332 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
1333 | |
1334 | index = reg->doneq_index; | |
1335 | ||
1336 | while ((flag_ccb = readl(®->done_qbuffer[index])) != 0) { | |
1337 | writel(0, ®->done_qbuffer[index]); | |
1338 | arcmsr_drain_donequeue(acb, flag_ccb); | |
1339 | index++; | |
1340 | index %= ARCMSR_MAX_HBB_POSTQUEUE; | |
1341 | reg->doneq_index = index; | |
1342 | } | |
1343 | } | |
36b83ded NC |
1344 | /* |
1345 | ********************************************************************************** | |
1346 | ** Handle a message interrupt | |
1347 | ** | |
1348 | ** The only message interrupt we expect is in response to a query for the current adapter config. | |
1349 | ** We want this in order to compare the drivemap so that we can detect newly-attached drives. | |
1350 | ********************************************************************************** | |
1351 | */ | |
1352 | static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb) | |
1353 | { | |
1354 | struct MessageUnit_A *reg = acb->pmuA; | |
1355 | ||
1356 | /*clear interrupt and message state*/ | |
1357 | writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, ®->outbound_intstatus); | |
1358 | schedule_work(&acb->arcmsr_do_message_isr_bh); | |
1359 | } | |
1360 | static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb) | |
1361 | { | |
1362 | struct MessageUnit_B *reg = acb->pmuB; | |
1a4f550a | 1363 | |
36b83ded NC |
1364 | /*clear interrupt and message state*/ |
1365 | writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell_reg); | |
1366 | schedule_work(&acb->arcmsr_do_message_isr_bh); | |
1367 | } | |
1a4f550a NC |
1368 | static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb) |
1369 | { | |
1370 | uint32_t outbound_intstatus; | |
80da1adb | 1371 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a | 1372 | |
36b83ded | 1373 | outbound_intstatus = readl(®->outbound_intstatus) & |
1a4f550a NC |
1374 | acb->outbound_int_enable; |
1375 | if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT)) { | |
1376 | return 1; | |
1377 | } | |
1378 | writel(outbound_intstatus, ®->outbound_intstatus); | |
1379 | if (outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) { | |
1380 | arcmsr_hba_doorbell_isr(acb); | |
1381 | } | |
1382 | if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) { | |
1383 | arcmsr_hba_postqueue_isr(acb); | |
1384 | } | |
36b83ded NC |
1385 | if (outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) { |
1386 | /* messenger of "driver to iop commands" */ | |
1387 | arcmsr_hba_message_isr(acb); | |
1388 | } | |
1a4f550a NC |
1389 | return 0; |
1390 | } | |
1391 | ||
1392 | static int arcmsr_handle_hbb_isr(struct AdapterControlBlock *acb) | |
1393 | { | |
1394 | uint32_t outbound_doorbell; | |
80da1adb | 1395 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a | 1396 | |
36b83ded | 1397 | outbound_doorbell = readl(reg->iop2drv_doorbell_reg) & |
1a4f550a NC |
1398 | acb->outbound_int_enable; |
1399 | if (!outbound_doorbell) | |
1400 | return 1; | |
1401 | ||
1402 | writel(~outbound_doorbell, reg->iop2drv_doorbell_reg); | |
36b83ded NC |
1403 | /*in case the last action of doorbell interrupt clearance is cached, |
1404 | this action can push HW to write down the clear bit*/ | |
76d78300 NC |
1405 | readl(reg->iop2drv_doorbell_reg); |
1406 | writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell_reg); | |
1a4f550a NC |
1407 | if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) { |
1408 | arcmsr_iop2drv_data_wrote_handle(acb); | |
1409 | } | |
1410 | if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) { | |
1411 | arcmsr_iop2drv_data_read_handle(acb); | |
1412 | } | |
1413 | if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) { | |
1414 | arcmsr_hbb_postqueue_isr(acb); | |
1415 | } | |
36b83ded NC |
1416 | if (outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) { |
1417 | /* messenger of "driver to iop commands" */ | |
1418 | arcmsr_hbb_message_isr(acb); | |
1419 | } | |
1a4f550a NC |
1420 | |
1421 | return 0; | |
1422 | } | |
1423 | ||
1424 | static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb) | |
1425 | { | |
1426 | switch (acb->adapter_type) { | |
1427 | case ACB_ADAPTER_TYPE_A: { | |
1428 | if (arcmsr_handle_hba_isr(acb)) { | |
1429 | return IRQ_NONE; | |
1430 | } | |
1431 | } | |
1432 | break; | |
1433 | ||
1434 | case ACB_ADAPTER_TYPE_B: { | |
1435 | if (arcmsr_handle_hbb_isr(acb)) { | |
1436 | return IRQ_NONE; | |
1437 | } | |
1438 | } | |
1439 | break; | |
1c57e86d | 1440 | } |
1c57e86d EC |
1441 | return IRQ_HANDLED; |
1442 | } | |
1443 | ||
1444 | static void arcmsr_iop_parking(struct AdapterControlBlock *acb) | |
1445 | { | |
1446 | if (acb) { | |
1447 | /* stop adapter background rebuild */ | |
1448 | if (acb->acb_flags & ACB_F_MSG_START_BGRB) { | |
1a4f550a | 1449 | uint32_t intmask_org; |
1c57e86d | 1450 | acb->acb_flags &= ~ACB_F_MSG_START_BGRB; |
1a4f550a | 1451 | intmask_org = arcmsr_disable_outbound_ints(acb); |
1c57e86d EC |
1452 | arcmsr_stop_adapter_bgrb(acb); |
1453 | arcmsr_flush_adapter_cache(acb); | |
1a4f550a NC |
1454 | arcmsr_enable_outbound_ints(acb, intmask_org); |
1455 | } | |
1456 | } | |
1457 | } | |
1458 | ||
1459 | void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *acb) | |
1460 | { | |
1461 | int32_t wqbuf_firstindex, wqbuf_lastindex; | |
1462 | uint8_t *pQbuffer; | |
80da1adb AV |
1463 | struct QBUFFER __iomem *pwbuffer; |
1464 | uint8_t __iomem *iop_data; | |
1a4f550a NC |
1465 | int32_t allxfer_len = 0; |
1466 | ||
1467 | pwbuffer = arcmsr_get_iop_wqbuffer(acb); | |
1468 | iop_data = (uint8_t __iomem *)pwbuffer->data; | |
1469 | if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) { | |
1470 | acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED); | |
1471 | wqbuf_firstindex = acb->wqbuf_firstindex; | |
1472 | wqbuf_lastindex = acb->wqbuf_lastindex; | |
1473 | while ((wqbuf_firstindex != wqbuf_lastindex) && (allxfer_len < 124)) { | |
1474 | pQbuffer = &acb->wqbuffer[wqbuf_firstindex]; | |
1475 | memcpy(iop_data, pQbuffer, 1); | |
1476 | wqbuf_firstindex++; | |
1477 | wqbuf_firstindex %= ARCMSR_MAX_QBUFFER; | |
1478 | iop_data++; | |
1479 | allxfer_len++; | |
1c57e86d | 1480 | } |
1a4f550a NC |
1481 | acb->wqbuf_firstindex = wqbuf_firstindex; |
1482 | pwbuffer->data_len = allxfer_len; | |
1483 | arcmsr_iop_message_wrote(acb); | |
1c57e86d EC |
1484 | } |
1485 | } | |
1486 | ||
36b83ded | 1487 | static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, |
1a4f550a | 1488 | struct scsi_cmnd *cmd) |
1c57e86d | 1489 | { |
1c57e86d EC |
1490 | struct CMD_MESSAGE_FIELD *pcmdmessagefld; |
1491 | int retvalue = 0, transfer_len = 0; | |
1492 | char *buffer; | |
deff2627 | 1493 | struct scatterlist *sg; |
1c57e86d EC |
1494 | uint32_t controlcode = (uint32_t ) cmd->cmnd[5] << 24 | |
1495 | (uint32_t ) cmd->cmnd[6] << 16 | | |
1496 | (uint32_t ) cmd->cmnd[7] << 8 | | |
1497 | (uint32_t ) cmd->cmnd[8]; | |
1a4f550a | 1498 | /* 4 bytes: Areca io control code */ |
1c57e86d | 1499 | |
deff2627 | 1500 | sg = scsi_sglist(cmd); |
45711f1a | 1501 | buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; |
deff2627 FT |
1502 | if (scsi_sg_count(cmd) > 1) { |
1503 | retvalue = ARCMSR_MESSAGE_FAIL; | |
1504 | goto message_out; | |
1c57e86d | 1505 | } |
deff2627 FT |
1506 | transfer_len += sg->length; |
1507 | ||
1c57e86d EC |
1508 | if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) { |
1509 | retvalue = ARCMSR_MESSAGE_FAIL; | |
1510 | goto message_out; | |
1511 | } | |
1512 | pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer; | |
1513 | switch(controlcode) { | |
1a4f550a | 1514 | |
1c57e86d | 1515 | case ARCMSR_MESSAGE_READ_RQBUFFER: { |
69e562c2 | 1516 | unsigned char *ver_addr; |
1a4f550a NC |
1517 | uint8_t *pQbuffer, *ptmpQbuffer; |
1518 | int32_t allxfer_len = 0; | |
1519 | ||
69e562c2 DD |
1520 | ver_addr = kmalloc(1032, GFP_ATOMIC); |
1521 | if (!ver_addr) { | |
1a4f550a NC |
1522 | retvalue = ARCMSR_MESSAGE_FAIL; |
1523 | goto message_out; | |
1524 | } | |
36b83ded NC |
1525 | |
1526 | if (!acb->fw_state) { | |
1527 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1528 | ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; | |
1529 | goto message_out; | |
1530 | } | |
1531 | ||
69e562c2 | 1532 | ptmpQbuffer = ver_addr; |
1a4f550a NC |
1533 | while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex) |
1534 | && (allxfer_len < 1031)) { | |
1535 | pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex]; | |
1536 | memcpy(ptmpQbuffer, pQbuffer, 1); | |
1537 | acb->rqbuf_firstindex++; | |
1538 | acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER; | |
1539 | ptmpQbuffer++; | |
1540 | allxfer_len++; | |
1541 | } | |
1542 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { | |
1c57e86d | 1543 | |
80da1adb AV |
1544 | struct QBUFFER __iomem *prbuffer; |
1545 | uint8_t __iomem *iop_data; | |
1a4f550a NC |
1546 | int32_t iop_len; |
1547 | ||
1548 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; | |
1549 | prbuffer = arcmsr_get_iop_rqbuffer(acb); | |
80da1adb | 1550 | iop_data = prbuffer->data; |
1a4f550a NC |
1551 | iop_len = readl(&prbuffer->data_len); |
1552 | while (iop_len > 0) { | |
1553 | acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data); | |
1554 | acb->rqbuf_lastindex++; | |
1555 | acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER; | |
1556 | iop_data++; | |
1557 | iop_len--; | |
1c57e86d | 1558 | } |
1a4f550a NC |
1559 | arcmsr_iop_message_read(acb); |
1560 | } | |
69e562c2 | 1561 | memcpy(pcmdmessagefld->messagedatabuffer, ver_addr, allxfer_len); |
1a4f550a NC |
1562 | pcmdmessagefld->cmdmessage.Length = allxfer_len; |
1563 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; | |
69e562c2 | 1564 | kfree(ver_addr); |
1c57e86d EC |
1565 | } |
1566 | break; | |
1c57e86d | 1567 | |
1a4f550a | 1568 | case ARCMSR_MESSAGE_WRITE_WQBUFFER: { |
69e562c2 | 1569 | unsigned char *ver_addr; |
1a4f550a NC |
1570 | int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex; |
1571 | uint8_t *pQbuffer, *ptmpuserbuffer; | |
1572 | ||
69e562c2 DD |
1573 | ver_addr = kmalloc(1032, GFP_ATOMIC); |
1574 | if (!ver_addr) { | |
1a4f550a NC |
1575 | retvalue = ARCMSR_MESSAGE_FAIL; |
1576 | goto message_out; | |
1577 | } | |
36b83ded NC |
1578 | if (!acb->fw_state) { |
1579 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1580 | ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; | |
1581 | goto message_out; | |
1582 | } | |
1583 | ||
69e562c2 | 1584 | ptmpuserbuffer = ver_addr; |
1a4f550a NC |
1585 | user_len = pcmdmessagefld->cmdmessage.Length; |
1586 | memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len); | |
1587 | wqbuf_lastindex = acb->wqbuf_lastindex; | |
1588 | wqbuf_firstindex = acb->wqbuf_firstindex; | |
1589 | if (wqbuf_lastindex != wqbuf_firstindex) { | |
1590 | struct SENSE_DATA *sensebuffer = | |
1591 | (struct SENSE_DATA *)cmd->sense_buffer; | |
1592 | arcmsr_post_ioctldata2iop(acb); | |
1593 | /* has error report sensedata */ | |
1594 | sensebuffer->ErrorCode = 0x70; | |
1595 | sensebuffer->SenseKey = ILLEGAL_REQUEST; | |
1596 | sensebuffer->AdditionalSenseLength = 0x0A; | |
1597 | sensebuffer->AdditionalSenseCode = 0x20; | |
1598 | sensebuffer->Valid = 1; | |
1599 | retvalue = ARCMSR_MESSAGE_FAIL; | |
1600 | } else { | |
1601 | my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1) | |
1602 | &(ARCMSR_MAX_QBUFFER - 1); | |
1603 | if (my_empty_len >= user_len) { | |
1604 | while (user_len > 0) { | |
1605 | pQbuffer = | |
1606 | &acb->wqbuffer[acb->wqbuf_lastindex]; | |
1607 | memcpy(pQbuffer, ptmpuserbuffer, 1); | |
1608 | acb->wqbuf_lastindex++; | |
1609 | acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER; | |
1610 | ptmpuserbuffer++; | |
1611 | user_len--; | |
1612 | } | |
1613 | if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) { | |
1614 | acb->acb_flags &= | |
1615 | ~ACB_F_MESSAGE_WQBUFFER_CLEARED; | |
1616 | arcmsr_post_ioctldata2iop(acb); | |
1617 | } | |
1618 | } else { | |
1619 | /* has error report sensedata */ | |
1c57e86d EC |
1620 | struct SENSE_DATA *sensebuffer = |
1621 | (struct SENSE_DATA *)cmd->sense_buffer; | |
1c57e86d EC |
1622 | sensebuffer->ErrorCode = 0x70; |
1623 | sensebuffer->SenseKey = ILLEGAL_REQUEST; | |
1624 | sensebuffer->AdditionalSenseLength = 0x0A; | |
1625 | sensebuffer->AdditionalSenseCode = 0x20; | |
1626 | sensebuffer->Valid = 1; | |
1627 | retvalue = ARCMSR_MESSAGE_FAIL; | |
1a4f550a | 1628 | } |
1c57e86d | 1629 | } |
69e562c2 | 1630 | kfree(ver_addr); |
1c57e86d EC |
1631 | } |
1632 | break; | |
1a4f550a | 1633 | |
1c57e86d | 1634 | case ARCMSR_MESSAGE_CLEAR_RQBUFFER: { |
1a4f550a | 1635 | uint8_t *pQbuffer = acb->rqbuffer; |
36b83ded NC |
1636 | if (!acb->fw_state) { |
1637 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1638 | ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; | |
1639 | goto message_out; | |
1640 | } | |
1c57e86d | 1641 | |
1a4f550a NC |
1642 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { |
1643 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; | |
1644 | arcmsr_iop_message_read(acb); | |
1645 | } | |
1646 | acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED; | |
1647 | acb->rqbuf_firstindex = 0; | |
1648 | acb->rqbuf_lastindex = 0; | |
1649 | memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER); | |
1650 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; | |
1c57e86d EC |
1651 | } |
1652 | break; | |
1a4f550a | 1653 | |
1c57e86d | 1654 | case ARCMSR_MESSAGE_CLEAR_WQBUFFER: { |
1a4f550a | 1655 | uint8_t *pQbuffer = acb->wqbuffer; |
36b83ded NC |
1656 | if (!acb->fw_state) { |
1657 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1658 | ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; | |
1659 | goto message_out; | |
1660 | } | |
1c57e86d | 1661 | |
1a4f550a NC |
1662 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { |
1663 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; | |
1664 | arcmsr_iop_message_read(acb); | |
1665 | } | |
1666 | acb->acb_flags |= | |
1667 | (ACB_F_MESSAGE_WQBUFFER_CLEARED | | |
1668 | ACB_F_MESSAGE_WQBUFFER_READED); | |
1669 | acb->wqbuf_firstindex = 0; | |
1670 | acb->wqbuf_lastindex = 0; | |
1671 | memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER); | |
1672 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1673 | ARCMSR_MESSAGE_RETURNCODE_OK; | |
1c57e86d EC |
1674 | } |
1675 | break; | |
1a4f550a | 1676 | |
1c57e86d | 1677 | case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: { |
1a4f550a | 1678 | uint8_t *pQbuffer; |
36b83ded NC |
1679 | if (!acb->fw_state) { |
1680 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1681 | ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; | |
1682 | goto message_out; | |
1683 | } | |
1c57e86d | 1684 | |
1a4f550a NC |
1685 | if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { |
1686 | acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; | |
1687 | arcmsr_iop_message_read(acb); | |
1688 | } | |
1689 | acb->acb_flags |= | |
1690 | (ACB_F_MESSAGE_WQBUFFER_CLEARED | |
1691 | | ACB_F_MESSAGE_RQBUFFER_CLEARED | |
1692 | | ACB_F_MESSAGE_WQBUFFER_READED); | |
1693 | acb->rqbuf_firstindex = 0; | |
1694 | acb->rqbuf_lastindex = 0; | |
1695 | acb->wqbuf_firstindex = 0; | |
1696 | acb->wqbuf_lastindex = 0; | |
1697 | pQbuffer = acb->rqbuffer; | |
1698 | memset(pQbuffer, 0, sizeof(struct QBUFFER)); | |
1699 | pQbuffer = acb->wqbuffer; | |
1700 | memset(pQbuffer, 0, sizeof(struct QBUFFER)); | |
1701 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; | |
1c57e86d EC |
1702 | } |
1703 | break; | |
1a4f550a | 1704 | |
1c57e86d | 1705 | case ARCMSR_MESSAGE_RETURN_CODE_3F: { |
36b83ded NC |
1706 | if (!acb->fw_state) { |
1707 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1708 | ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; | |
1709 | goto message_out; | |
1710 | } | |
1a4f550a | 1711 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F; |
1c57e86d EC |
1712 | } |
1713 | break; | |
1a4f550a | 1714 | |
1c57e86d | 1715 | case ARCMSR_MESSAGE_SAY_HELLO: { |
1a4f550a | 1716 | int8_t *hello_string = "Hello! I am ARCMSR"; |
36b83ded NC |
1717 | if (!acb->fw_state) { |
1718 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1719 | ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; | |
1720 | goto message_out; | |
1721 | } | |
1a4f550a NC |
1722 | memcpy(pcmdmessagefld->messagedatabuffer, hello_string |
1723 | , (int16_t)strlen(hello_string)); | |
1724 | pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK; | |
1c57e86d EC |
1725 | } |
1726 | break; | |
1a4f550a | 1727 | |
1c57e86d | 1728 | case ARCMSR_MESSAGE_SAY_GOODBYE: |
36b83ded NC |
1729 | if (!acb->fw_state) { |
1730 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1731 | ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; | |
1732 | goto message_out; | |
1733 | } | |
1c57e86d EC |
1734 | arcmsr_iop_parking(acb); |
1735 | break; | |
1a4f550a | 1736 | |
1c57e86d | 1737 | case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: |
36b83ded NC |
1738 | if (!acb->fw_state) { |
1739 | pcmdmessagefld->cmdmessage.ReturnCode = | |
1740 | ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON; | |
1741 | goto message_out; | |
1742 | } | |
1c57e86d EC |
1743 | arcmsr_flush_adapter_cache(acb); |
1744 | break; | |
1a4f550a | 1745 | |
1c57e86d EC |
1746 | default: |
1747 | retvalue = ARCMSR_MESSAGE_FAIL; | |
1748 | } | |
1a4f550a | 1749 | message_out: |
deff2627 FT |
1750 | sg = scsi_sglist(cmd); |
1751 | kunmap_atomic(buffer - sg->offset, KM_IRQ0); | |
1c57e86d EC |
1752 | return retvalue; |
1753 | } | |
1754 | ||
1755 | static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *acb) | |
1756 | { | |
1757 | struct list_head *head = &acb->ccb_free_list; | |
1758 | struct CommandControlBlock *ccb = NULL; | |
1759 | ||
1760 | if (!list_empty(head)) { | |
1761 | ccb = list_entry(head->next, struct CommandControlBlock, list); | |
1762 | list_del(head->next); | |
1763 | } | |
1764 | return ccb; | |
1765 | } | |
1766 | ||
1767 | static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb, | |
1768 | struct scsi_cmnd *cmd) | |
1769 | { | |
1770 | switch (cmd->cmnd[0]) { | |
1771 | case INQUIRY: { | |
1772 | unsigned char inqdata[36]; | |
1773 | char *buffer; | |
deff2627 | 1774 | struct scatterlist *sg; |
1c57e86d EC |
1775 | |
1776 | if (cmd->device->lun) { | |
1777 | cmd->result = (DID_TIME_OUT << 16); | |
1778 | cmd->scsi_done(cmd); | |
1779 | return; | |
1780 | } | |
1781 | inqdata[0] = TYPE_PROCESSOR; | |
1782 | /* Periph Qualifier & Periph Dev Type */ | |
1783 | inqdata[1] = 0; | |
1784 | /* rem media bit & Dev Type Modifier */ | |
1785 | inqdata[2] = 0; | |
a1f6e021 | 1786 | /* ISO, ECMA, & ANSI versions */ |
1c57e86d EC |
1787 | inqdata[4] = 31; |
1788 | /* length of additional data */ | |
1789 | strncpy(&inqdata[8], "Areca ", 8); | |
1790 | /* Vendor Identification */ | |
1791 | strncpy(&inqdata[16], "RAID controller ", 16); | |
1792 | /* Product Identification */ | |
1793 | strncpy(&inqdata[32], "R001", 4); /* Product Revision */ | |
1c57e86d | 1794 | |
deff2627 | 1795 | sg = scsi_sglist(cmd); |
45711f1a | 1796 | buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; |
deff2627 | 1797 | |
1c57e86d | 1798 | memcpy(buffer, inqdata, sizeof(inqdata)); |
deff2627 FT |
1799 | sg = scsi_sglist(cmd); |
1800 | kunmap_atomic(buffer - sg->offset, KM_IRQ0); | |
1c57e86d | 1801 | |
1c57e86d EC |
1802 | cmd->scsi_done(cmd); |
1803 | } | |
1804 | break; | |
1805 | case WRITE_BUFFER: | |
1806 | case READ_BUFFER: { | |
1807 | if (arcmsr_iop_message_xfer(acb, cmd)) | |
1808 | cmd->result = (DID_ERROR << 16); | |
1809 | cmd->scsi_done(cmd); | |
1810 | } | |
1811 | break; | |
1812 | default: | |
1813 | cmd->scsi_done(cmd); | |
1814 | } | |
1815 | } | |
1816 | ||
1817 | static int arcmsr_queue_command(struct scsi_cmnd *cmd, | |
1818 | void (* done)(struct scsi_cmnd *)) | |
1819 | { | |
1820 | struct Scsi_Host *host = cmd->device->host; | |
1a4f550a | 1821 | struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; |
1c57e86d EC |
1822 | struct CommandControlBlock *ccb; |
1823 | int target = cmd->device->id; | |
1824 | int lun = cmd->device->lun; | |
36b83ded | 1825 | uint8_t scsicmd = cmd->cmnd[0]; |
1c57e86d EC |
1826 | cmd->scsi_done = done; |
1827 | cmd->host_scribble = NULL; | |
1828 | cmd->result = 0; | |
36b83ded NC |
1829 | |
1830 | if ((scsicmd == SYNCHRONIZE_CACHE) || (scsicmd == SEND_DIAGNOSTIC)) { | |
1831 | if (acb->devstate[target][lun] == ARECA_RAID_GONE) { | |
1832 | cmd->result = (DID_NO_CONNECT << 16); | |
1833 | } | |
1834 | cmd->scsi_done(cmd); | |
1835 | return 0; | |
1836 | } | |
1837 | ||
1c57e86d | 1838 | if (acb->acb_flags & ACB_F_BUS_RESET) { |
36b83ded NC |
1839 | switch (acb->adapter_type) { |
1840 | case ACB_ADAPTER_TYPE_A: { | |
1841 | struct MessageUnit_A __iomem *reg = acb->pmuA; | |
1842 | uint32_t intmask_org, outbound_doorbell; | |
1843 | ||
1844 | if ((readl(®->outbound_msgaddr1) & | |
1845 | ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) { | |
1846 | printk(KERN_NOTICE "arcmsr%d: bus reset and return busy\n", | |
1847 | acb->host->host_no); | |
1c57e86d EC |
1848 | return SCSI_MLQUEUE_HOST_BUSY; |
1849 | } | |
36b83ded NC |
1850 | |
1851 | acb->acb_flags &= ~ACB_F_FIRMWARE_TRAP; | |
1852 | printk(KERN_NOTICE "arcmsr%d: hardware bus reset and reset ok\n", | |
1853 | acb->host->host_no); | |
1854 | /* disable all outbound interrupt */ | |
1855 | intmask_org = arcmsr_disable_outbound_ints(acb); | |
1856 | arcmsr_get_firmware_spec(acb, 1); | |
1857 | /*start background rebuild*/ | |
1858 | arcmsr_start_adapter_bgrb(acb); | |
1859 | /* clear Qbuffer if door bell ringed */ | |
1860 | outbound_doorbell = readl(®->outbound_doorbell); | |
1861 | /*clear interrupt */ | |
1862 | writel(outbound_doorbell, ®->outbound_doorbell); | |
1863 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, | |
1864 | ®->inbound_doorbell); | |
1865 | /* enable outbound Post Queue,outbound doorbell Interrupt */ | |
1866 | arcmsr_enable_outbound_ints(acb, intmask_org); | |
1867 | acb->acb_flags |= ACB_F_IOP_INITED; | |
1868 | acb->acb_flags &= ~ACB_F_BUS_RESET; | |
1869 | } | |
1870 | break; | |
1871 | case ACB_ADAPTER_TYPE_B: { | |
1872 | } | |
1873 | } | |
1874 | } | |
1875 | ||
a1f6e021 | 1876 | if (target == 16) { |
1c57e86d EC |
1877 | /* virtual device for iop message transfer */ |
1878 | arcmsr_handle_virtual_command(acb, cmd); | |
1879 | return 0; | |
1880 | } | |
1881 | if (acb->devstate[target][lun] == ARECA_RAID_GONE) { | |
1882 | uint8_t block_cmd; | |
1883 | ||
1884 | block_cmd = cmd->cmnd[0] & 0x0f; | |
1885 | if (block_cmd == 0x08 || block_cmd == 0x0a) { | |
1886 | printk(KERN_NOTICE | |
1887 | "arcmsr%d: block 'read/write'" | |
1888 | "command with gone raid volume" | |
a1f6e021 | 1889 | " Cmd = %2x, TargetId = %d, Lun = %d \n" |
1c57e86d EC |
1890 | , acb->host->host_no |
1891 | , cmd->cmnd[0] | |
1892 | , target, lun); | |
1893 | cmd->result = (DID_NO_CONNECT << 16); | |
1894 | cmd->scsi_done(cmd); | |
1895 | return 0; | |
1896 | } | |
1897 | } | |
1898 | if (atomic_read(&acb->ccboutstandingcount) >= | |
1899 | ARCMSR_MAX_OUTSTANDING_CMD) | |
1900 | return SCSI_MLQUEUE_HOST_BUSY; | |
1901 | ||
1902 | ccb = arcmsr_get_freeccb(acb); | |
1903 | if (!ccb) | |
1904 | return SCSI_MLQUEUE_HOST_BUSY; | |
76d78300 NC |
1905 | if ( arcmsr_build_ccb( acb, ccb, cmd ) == FAILED ) { |
1906 | cmd->result = (DID_ERROR << 16) | (RESERVATION_CONFLICT << 1); | |
1907 | cmd->scsi_done(cmd); | |
1908 | return 0; | |
1909 | } | |
1c57e86d EC |
1910 | arcmsr_post_ccb(acb, ccb); |
1911 | return 0; | |
1912 | } | |
1913 | ||
36b83ded | 1914 | static void *arcmsr_get_hba_config(struct AdapterControlBlock *acb, int mode) |
1c57e86d | 1915 | { |
80da1adb | 1916 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1c57e86d EC |
1917 | char *acb_firm_model = acb->firm_model; |
1918 | char *acb_firm_version = acb->firm_version; | |
36b83ded | 1919 | char *acb_device_map = acb->device_map; |
80da1adb AV |
1920 | char __iomem *iop_firm_model = (char __iomem *)(®->message_rwbuffer[15]); |
1921 | char __iomem *iop_firm_version = (char __iomem *)(®->message_rwbuffer[17]); | |
36b83ded | 1922 | char __iomem *iop_device_map = (char __iomem *) (®->message_rwbuffer[21]); |
1c57e86d EC |
1923 | int count; |
1924 | ||
1925 | writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0); | |
1a4f550a NC |
1926 | if (arcmsr_hba_wait_msgint_ready(acb)) { |
1927 | printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \ | |
1928 | miscellaneous data' timeout \n", acb->host->host_no); | |
36b83ded | 1929 | return NULL; |
1a4f550a NC |
1930 | } |
1931 | ||
36b83ded | 1932 | if (mode == 1) { |
1c57e86d EC |
1933 | count = 8; |
1934 | while (count) { | |
1935 | *acb_firm_model = readb(iop_firm_model); | |
1936 | acb_firm_model++; | |
1937 | iop_firm_model++; | |
1938 | count--; | |
1939 | } | |
1a4f550a | 1940 | |
1c57e86d EC |
1941 | count = 16; |
1942 | while (count) { | |
1943 | *acb_firm_version = readb(iop_firm_version); | |
1944 | acb_firm_version++; | |
1945 | iop_firm_version++; | |
1946 | count--; | |
1947 | } | |
1a4f550a | 1948 | |
36b83ded NC |
1949 | count = 16; |
1950 | while (count) { | |
1951 | *acb_device_map = readb(iop_device_map); | |
1952 | acb_device_map++; | |
1953 | iop_device_map++; | |
1954 | count--; | |
1955 | } | |
1956 | ||
1a4f550a | 1957 | printk(KERN_INFO "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n" |
1c57e86d EC |
1958 | , acb->host->host_no |
1959 | , acb->firm_version); | |
36b83ded | 1960 | acb->signature = readl(®->message_rwbuffer[0]); |
1c57e86d EC |
1961 | acb->firm_request_len = readl(®->message_rwbuffer[1]); |
1962 | acb->firm_numbers_queue = readl(®->message_rwbuffer[2]); | |
1963 | acb->firm_sdram_size = readl(®->message_rwbuffer[3]); | |
1964 | acb->firm_hd_channels = readl(®->message_rwbuffer[4]); | |
1965 | } | |
36b83ded NC |
1966 | return reg->message_rwbuffer; |
1967 | } | |
1968 | static void __iomem *arcmsr_get_hbb_config(struct AdapterControlBlock *acb, int mode) | |
1a4f550a | 1969 | { |
80da1adb AV |
1970 | struct MessageUnit_B *reg = acb->pmuB; |
1971 | uint32_t __iomem *lrwbuffer = reg->msgcode_rwbuffer_reg; | |
1a4f550a NC |
1972 | char *acb_firm_model = acb->firm_model; |
1973 | char *acb_firm_version = acb->firm_version; | |
36b83ded | 1974 | char *acb_device_map = acb->device_map; |
80da1adb | 1975 | char __iomem *iop_firm_model = (char __iomem *)(&lrwbuffer[15]); |
1a4f550a | 1976 | /*firm_model,15,60-67*/ |
80da1adb | 1977 | char __iomem *iop_firm_version = (char __iomem *)(&lrwbuffer[17]); |
1a4f550a | 1978 | /*firm_version,17,68-83*/ |
36b83ded NC |
1979 | char __iomem *iop_device_map = (char __iomem *) (&lrwbuffer[21]); |
1980 | /*firm_version,21,84-99*/ | |
1a4f550a NC |
1981 | int count; |
1982 | ||
1983 | writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell_reg); | |
1984 | if (arcmsr_hbb_wait_msgint_ready(acb)) { | |
1985 | printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \ | |
1986 | miscellaneous data' timeout \n", acb->host->host_no); | |
36b83ded | 1987 | return NULL; |
1a4f550a NC |
1988 | } |
1989 | ||
36b83ded | 1990 | if (mode == 1) { |
1a4f550a NC |
1991 | count = 8; |
1992 | while (count) | |
1993 | { | |
1994 | *acb_firm_model = readb(iop_firm_model); | |
1995 | acb_firm_model++; | |
1996 | iop_firm_model++; | |
1997 | count--; | |
1998 | } | |
1999 | ||
2000 | count = 16; | |
2001 | while (count) | |
2002 | { | |
2003 | *acb_firm_version = readb(iop_firm_version); | |
2004 | acb_firm_version++; | |
2005 | iop_firm_version++; | |
2006 | count--; | |
2007 | } | |
2008 | ||
36b83ded NC |
2009 | count = 16; |
2010 | while (count) { | |
2011 | *acb_device_map = readb(iop_device_map); | |
2012 | acb_device_map++; | |
2013 | iop_device_map++; | |
2014 | count--; | |
2015 | } | |
2016 | ||
1a4f550a NC |
2017 | printk(KERN_INFO "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n", |
2018 | acb->host->host_no, | |
2019 | acb->firm_version); | |
2020 | ||
36b83ded NC |
2021 | acb->signature = readl(lrwbuffer++); |
2022 | /*firm_signature,1,00-03*/ | |
1a4f550a NC |
2023 | acb->firm_request_len = readl(lrwbuffer++); |
2024 | /*firm_request_len,1,04-07*/ | |
2025 | acb->firm_numbers_queue = readl(lrwbuffer++); | |
2026 | /*firm_numbers_queue,2,08-11*/ | |
2027 | acb->firm_sdram_size = readl(lrwbuffer++); | |
2028 | /*firm_sdram_size,3,12-15*/ | |
2029 | acb->firm_hd_channels = readl(lrwbuffer); | |
2030 | /*firm_ide_channels,4,16-19*/ | |
2031 | } | |
36b83ded NC |
2032 | return reg->msgcode_rwbuffer_reg; |
2033 | } | |
2034 | static void *arcmsr_get_firmware_spec(struct AdapterControlBlock *acb, int mode) | |
1a4f550a | 2035 | { |
36b83ded | 2036 | void *rtnval = 0; |
1a4f550a NC |
2037 | switch (acb->adapter_type) { |
2038 | case ACB_ADAPTER_TYPE_A: { | |
36b83ded | 2039 | rtnval = arcmsr_get_hba_config(acb, mode); |
1a4f550a NC |
2040 | } |
2041 | break; | |
2042 | ||
2043 | case ACB_ADAPTER_TYPE_B: { | |
36b83ded | 2044 | rtnval = arcmsr_get_hbb_config(acb, mode); |
1a4f550a NC |
2045 | } |
2046 | break; | |
2047 | } | |
36b83ded | 2048 | return rtnval; |
1a4f550a NC |
2049 | } |
2050 | ||
2051 | static void arcmsr_polling_hba_ccbdone(struct AdapterControlBlock *acb, | |
1c57e86d EC |
2052 | struct CommandControlBlock *poll_ccb) |
2053 | { | |
80da1adb | 2054 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1c57e86d EC |
2055 | struct CommandControlBlock *ccb; |
2056 | uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0; | |
1c57e86d | 2057 | |
1a4f550a | 2058 | polling_hba_ccb_retry: |
1c57e86d | 2059 | poll_count++; |
1a4f550a | 2060 | outbound_intstatus = readl(®->outbound_intstatus) & acb->outbound_int_enable; |
1c57e86d EC |
2061 | writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/ |
2062 | while (1) { | |
2063 | if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) { | |
2064 | if (poll_ccb_done) | |
2065 | break; | |
2066 | else { | |
2067 | msleep(25); | |
2068 | if (poll_count > 100) | |
2069 | break; | |
1a4f550a | 2070 | goto polling_hba_ccb_retry; |
1c57e86d EC |
2071 | } |
2072 | } | |
1a4f550a NC |
2073 | ccb = (struct CommandControlBlock *)(acb->vir2phy_offset + (flag_ccb << 5)); |
2074 | poll_ccb_done = (ccb == poll_ccb) ? 1:0; | |
2075 | if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) { | |
2076 | if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) { | |
2077 | printk(KERN_NOTICE "arcmsr%d: scsi id = %d lun = %d ccb = '0x%p'" | |
1c57e86d EC |
2078 | " poll command abort successfully \n" |
2079 | , acb->host->host_no | |
2080 | , ccb->pcmd->device->id | |
2081 | , ccb->pcmd->device->lun | |
2082 | , ccb); | |
2083 | ccb->pcmd->result = DID_ABORT << 16; | |
2084 | arcmsr_ccb_complete(ccb, 1); | |
2085 | poll_ccb_done = 1; | |
2086 | continue; | |
2087 | } | |
1a4f550a NC |
2088 | printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb" |
2089 | " command done ccb = '0x%p'" | |
a1f6e021 | 2090 | "ccboutstandingcount = %d \n" |
1c57e86d EC |
2091 | , acb->host->host_no |
2092 | , ccb | |
2093 | , atomic_read(&acb->ccboutstandingcount)); | |
2094 | continue; | |
2095 | } | |
1a4f550a NC |
2096 | arcmsr_report_ccb_state(acb, ccb, flag_ccb); |
2097 | } | |
2098 | } | |
2099 | ||
76d78300 | 2100 | static void arcmsr_polling_hbb_ccbdone(struct AdapterControlBlock *acb, |
1a4f550a NC |
2101 | struct CommandControlBlock *poll_ccb) |
2102 | { | |
80da1adb | 2103 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
2104 | struct CommandControlBlock *ccb; |
2105 | uint32_t flag_ccb, poll_ccb_done = 0, poll_count = 0; | |
2106 | int index; | |
2107 | ||
2108 | polling_hbb_ccb_retry: | |
2109 | poll_count++; | |
2110 | /* clear doorbell interrupt */ | |
2111 | writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell_reg); | |
2112 | while (1) { | |
2113 | index = reg->doneq_index; | |
2114 | if ((flag_ccb = readl(®->done_qbuffer[index])) == 0) { | |
2115 | if (poll_ccb_done) | |
2116 | break; | |
2117 | else { | |
2118 | msleep(25); | |
2119 | if (poll_count > 100) | |
2120 | break; | |
2121 | goto polling_hbb_ccb_retry; | |
1c57e86d | 2122 | } |
1a4f550a NC |
2123 | } |
2124 | writel(0, ®->done_qbuffer[index]); | |
2125 | index++; | |
2126 | /*if last index number set it to 0 */ | |
2127 | index %= ARCMSR_MAX_HBB_POSTQUEUE; | |
2128 | reg->doneq_index = index; | |
2129 | /* check ifcommand done with no error*/ | |
2130 | ccb = (struct CommandControlBlock *)\ | |
2131 | (acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/ | |
2132 | poll_ccb_done = (ccb == poll_ccb) ? 1:0; | |
2133 | if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) { | |
76d78300 | 2134 | if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb == poll_ccb)) { |
1a4f550a NC |
2135 | printk(KERN_NOTICE "arcmsr%d: \ |
2136 | scsi id = %d lun = %d ccb = '0x%p' poll command abort successfully \n" | |
2137 | ,acb->host->host_no | |
2138 | ,ccb->pcmd->device->id | |
2139 | ,ccb->pcmd->device->lun | |
2140 | ,ccb); | |
2141 | ccb->pcmd->result = DID_ABORT << 16; | |
1c57e86d | 2142 | arcmsr_ccb_complete(ccb, 1); |
1a4f550a | 2143 | continue; |
1c57e86d | 2144 | } |
1a4f550a NC |
2145 | printk(KERN_NOTICE "arcmsr%d: polling get an illegal ccb" |
2146 | " command done ccb = '0x%p'" | |
2147 | "ccboutstandingcount = %d \n" | |
1c57e86d | 2148 | , acb->host->host_no |
1a4f550a NC |
2149 | , ccb |
2150 | , atomic_read(&acb->ccboutstandingcount)); | |
2151 | continue; | |
1c57e86d | 2152 | } |
1a4f550a NC |
2153 | arcmsr_report_ccb_state(acb, ccb, flag_ccb); |
2154 | } /*drain reply FIFO*/ | |
2155 | } | |
2156 | ||
76d78300 | 2157 | static void arcmsr_polling_ccbdone(struct AdapterControlBlock *acb, |
1a4f550a NC |
2158 | struct CommandControlBlock *poll_ccb) |
2159 | { | |
2160 | switch (acb->adapter_type) { | |
2161 | ||
2162 | case ACB_ADAPTER_TYPE_A: { | |
2163 | arcmsr_polling_hba_ccbdone(acb,poll_ccb); | |
2164 | } | |
2165 | break; | |
2166 | ||
2167 | case ACB_ADAPTER_TYPE_B: { | |
2168 | arcmsr_polling_hbb_ccbdone(acb,poll_ccb); | |
1c57e86d EC |
2169 | } |
2170 | } | |
2171 | } | |
1a4f550a NC |
2172 | |
2173 | static int arcmsr_iop_confirm(struct AdapterControlBlock *acb) | |
a1f6e021 | 2174 | { |
1a4f550a NC |
2175 | uint32_t cdb_phyaddr, ccb_phyaddr_hi32; |
2176 | dma_addr_t dma_coherent_handle; | |
2177 | /* | |
2178 | ******************************************************************** | |
2179 | ** here we need to tell iop 331 our freeccb.HighPart | |
2180 | ** if freeccb.HighPart is not zero | |
2181 | ******************************************************************** | |
2182 | */ | |
2183 | dma_coherent_handle = acb->dma_coherent_handle; | |
2184 | cdb_phyaddr = (uint32_t)(dma_coherent_handle); | |
2185 | ccb_phyaddr_hi32 = (uint32_t)((cdb_phyaddr >> 16) >> 16); | |
2186 | /* | |
2187 | *********************************************************************** | |
2188 | ** if adapter type B, set window of "post command Q" | |
2189 | *********************************************************************** | |
2190 | */ | |
2191 | switch (acb->adapter_type) { | |
2192 | ||
2193 | case ACB_ADAPTER_TYPE_A: { | |
2194 | if (ccb_phyaddr_hi32 != 0) { | |
80da1adb | 2195 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
2196 | uint32_t intmask_org; |
2197 | intmask_org = arcmsr_disable_outbound_ints(acb); | |
2198 | writel(ARCMSR_SIGNATURE_SET_CONFIG, \ | |
2199 | ®->message_rwbuffer[0]); | |
2200 | writel(ccb_phyaddr_hi32, ®->message_rwbuffer[1]); | |
2201 | writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, \ | |
2202 | ®->inbound_msgaddr0); | |
2203 | if (arcmsr_hba_wait_msgint_ready(acb)) { | |
2204 | printk(KERN_NOTICE "arcmsr%d: ""set ccb high \ | |
2205 | part physical address timeout\n", | |
2206 | acb->host->host_no); | |
2207 | return 1; | |
a1f6e021 | 2208 | } |
1a4f550a NC |
2209 | arcmsr_enable_outbound_ints(acb, intmask_org); |
2210 | } | |
2211 | } | |
2212 | break; | |
a1f6e021 | 2213 | |
1a4f550a NC |
2214 | case ACB_ADAPTER_TYPE_B: { |
2215 | unsigned long post_queue_phyaddr; | |
80da1adb | 2216 | uint32_t __iomem *rwbuffer; |
a1f6e021 | 2217 | |
80da1adb | 2218 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
2219 | uint32_t intmask_org; |
2220 | intmask_org = arcmsr_disable_outbound_ints(acb); | |
2221 | reg->postq_index = 0; | |
2222 | reg->doneq_index = 0; | |
2223 | writel(ARCMSR_MESSAGE_SET_POST_WINDOW, reg->drv2iop_doorbell_reg); | |
2224 | if (arcmsr_hbb_wait_msgint_ready(acb)) { | |
2225 | printk(KERN_NOTICE "arcmsr%d:can not set diver mode\n", \ | |
2226 | acb->host->host_no); | |
2227 | return 1; | |
2228 | } | |
2229 | post_queue_phyaddr = cdb_phyaddr + ARCMSR_MAX_FREECCB_NUM * \ | |
2230 | sizeof(struct CommandControlBlock) + offsetof(struct MessageUnit_B, post_qbuffer) ; | |
2231 | rwbuffer = reg->msgcode_rwbuffer_reg; | |
2232 | /* driver "set config" signature */ | |
2233 | writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++); | |
2234 | /* normal should be zero */ | |
2235 | writel(ccb_phyaddr_hi32, rwbuffer++); | |
2236 | /* postQ size (256 + 8)*4 */ | |
2237 | writel(post_queue_phyaddr, rwbuffer++); | |
2238 | /* doneQ size (256 + 8)*4 */ | |
2239 | writel(post_queue_phyaddr + 1056, rwbuffer++); | |
2240 | /* ccb maxQ size must be --> [(256 + 8)*4]*/ | |
2241 | writel(1056, rwbuffer); | |
2242 | ||
2243 | writel(ARCMSR_MESSAGE_SET_CONFIG, reg->drv2iop_doorbell_reg); | |
2244 | if (arcmsr_hbb_wait_msgint_ready(acb)) { | |
2245 | printk(KERN_NOTICE "arcmsr%d: 'set command Q window' \ | |
2246 | timeout \n",acb->host->host_no); | |
2247 | return 1; | |
2248 | } | |
a1f6e021 | 2249 | |
1a4f550a NC |
2250 | writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell_reg); |
2251 | if (arcmsr_hbb_wait_msgint_ready(acb)) { | |
2252 | printk(KERN_NOTICE "arcmsr%d: 'can not set diver mode \n"\ | |
2253 | ,acb->host->host_no); | |
2254 | return 1; | |
2255 | } | |
2256 | arcmsr_enable_outbound_ints(acb, intmask_org); | |
2257 | } | |
2258 | break; | |
2259 | } | |
2260 | return 0; | |
2261 | } | |
a1f6e021 | 2262 | |
1a4f550a NC |
2263 | static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb) |
2264 | { | |
2265 | uint32_t firmware_state = 0; | |
a1f6e021 | 2266 | |
1a4f550a NC |
2267 | switch (acb->adapter_type) { |
2268 | ||
2269 | case ACB_ADAPTER_TYPE_A: { | |
80da1adb | 2270 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
2271 | do { |
2272 | firmware_state = readl(®->outbound_msgaddr1); | |
2273 | } while ((firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0); | |
2274 | } | |
2275 | break; | |
2276 | ||
2277 | case ACB_ADAPTER_TYPE_B: { | |
80da1adb | 2278 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
2279 | do { |
2280 | firmware_state = readl(reg->iop2drv_doorbell_reg); | |
2281 | } while ((firmware_state & ARCMSR_MESSAGE_FIRMWARE_OK) == 0); | |
76d78300 | 2282 | writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell_reg); |
1a4f550a NC |
2283 | } |
2284 | break; | |
a1f6e021 | 2285 | } |
1a4f550a NC |
2286 | } |
2287 | ||
36b83ded NC |
2288 | static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb) |
2289 | { | |
2290 | struct MessageUnit_A __iomem *reg = acb->pmuA; | |
2291 | ||
2292 | if (unlikely(atomic_read(&acb->rq_map_token) == 0)) { | |
2293 | acb->fw_state = false; | |
2294 | } else { | |
2295 | /*to prevent rq_map_token from changing by other interrupt, then | |
2296 | avoid the dead-lock*/ | |
2297 | acb->fw_state = true; | |
2298 | atomic_dec(&acb->rq_map_token); | |
2299 | if (!(acb->fw_state) || | |
2300 | (acb->ante_token_value == atomic_read(&acb->rq_map_token))) { | |
2301 | atomic_set(&acb->rq_map_token, 16); | |
2302 | } | |
2303 | acb->ante_token_value = atomic_read(&acb->rq_map_token); | |
2304 | writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0); | |
2305 | } | |
2306 | mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6000)); | |
2307 | return; | |
2308 | } | |
2309 | ||
2310 | static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb) | |
2311 | { | |
2312 | struct MessageUnit_B __iomem *reg = acb->pmuB; | |
2313 | ||
2314 | if (unlikely(atomic_read(&acb->rq_map_token) == 0)) { | |
2315 | acb->fw_state = false; | |
2316 | } else { | |
2317 | /*to prevent rq_map_token from changing by other interrupt, then | |
2318 | avoid the dead-lock*/ | |
2319 | acb->fw_state = true; | |
2320 | atomic_dec(&acb->rq_map_token); | |
2321 | if (!(acb->fw_state) || | |
2322 | (acb->ante_token_value == atomic_read(&acb->rq_map_token))) { | |
2323 | atomic_set(&acb->rq_map_token, 16); | |
2324 | } | |
2325 | acb->ante_token_value = atomic_read(&acb->rq_map_token); | |
2326 | writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell_reg); | |
2327 | } | |
2328 | mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6000)); | |
2329 | return; | |
2330 | } | |
2331 | ||
2332 | static void arcmsr_request_device_map(unsigned long pacb) | |
2333 | { | |
2334 | struct AdapterControlBlock *acb = (struct AdapterControlBlock *)pacb; | |
2335 | ||
2336 | switch (acb->adapter_type) { | |
2337 | case ACB_ADAPTER_TYPE_A: { | |
2338 | arcmsr_request_hba_device_map(acb); | |
2339 | } | |
2340 | break; | |
2341 | case ACB_ADAPTER_TYPE_B: { | |
2342 | arcmsr_request_hbb_device_map(acb); | |
2343 | } | |
2344 | break; | |
2345 | } | |
2346 | } | |
2347 | ||
1a4f550a NC |
2348 | static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb) |
2349 | { | |
80da1adb | 2350 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
2351 | acb->acb_flags |= ACB_F_MSG_START_BGRB; |
2352 | writel(ARCMSR_INBOUND_MESG0_START_BGRB, ®->inbound_msgaddr0); | |
2353 | if (arcmsr_hba_wait_msgint_ready(acb)) { | |
2354 | printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \ | |
2355 | rebulid' timeout \n", acb->host->host_no); | |
a1f6e021 | 2356 | } |
a1f6e021 | 2357 | } |
2358 | ||
1a4f550a NC |
2359 | static void arcmsr_start_hbb_bgrb(struct AdapterControlBlock *acb) |
2360 | { | |
80da1adb | 2361 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
2362 | acb->acb_flags |= ACB_F_MSG_START_BGRB; |
2363 | writel(ARCMSR_MESSAGE_START_BGRB, reg->drv2iop_doorbell_reg); | |
2364 | if (arcmsr_hbb_wait_msgint_ready(acb)) { | |
2365 | printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background \ | |
2366 | rebulid' timeout \n",acb->host->host_no); | |
2367 | } | |
2368 | } | |
1c57e86d | 2369 | |
1a4f550a | 2370 | static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb) |
1c57e86d | 2371 | { |
1a4f550a NC |
2372 | switch (acb->adapter_type) { |
2373 | case ACB_ADAPTER_TYPE_A: | |
2374 | arcmsr_start_hba_bgrb(acb); | |
2375 | break; | |
2376 | case ACB_ADAPTER_TYPE_B: | |
2377 | arcmsr_start_hbb_bgrb(acb); | |
2378 | break; | |
2379 | } | |
2380 | } | |
1c57e86d | 2381 | |
1a4f550a NC |
2382 | static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb) |
2383 | { | |
2384 | switch (acb->adapter_type) { | |
2385 | case ACB_ADAPTER_TYPE_A: { | |
80da1adb | 2386 | struct MessageUnit_A __iomem *reg = acb->pmuA; |
1a4f550a NC |
2387 | uint32_t outbound_doorbell; |
2388 | /* empty doorbell Qbuffer if door bell ringed */ | |
2389 | outbound_doorbell = readl(®->outbound_doorbell); | |
2390 | /*clear doorbell interrupt */ | |
2391 | writel(outbound_doorbell, ®->outbound_doorbell); | |
2392 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell); | |
2393 | } | |
2394 | break; | |
1c57e86d | 2395 | |
1a4f550a | 2396 | case ACB_ADAPTER_TYPE_B: { |
80da1adb | 2397 | struct MessageUnit_B *reg = acb->pmuB; |
1a4f550a NC |
2398 | /*clear interrupt and message state*/ |
2399 | writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell_reg); | |
2400 | writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell_reg); | |
2401 | /* let IOP know data has been read */ | |
2402 | } | |
2403 | break; | |
1c57e86d | 2404 | } |
1a4f550a | 2405 | } |
1c57e86d | 2406 | |
76d78300 NC |
2407 | static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb) |
2408 | { | |
2409 | switch (acb->adapter_type) { | |
2410 | case ACB_ADAPTER_TYPE_A: | |
2411 | return; | |
2412 | case ACB_ADAPTER_TYPE_B: | |
2413 | { | |
2414 | struct MessageUnit_B *reg = acb->pmuB; | |
2415 | writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE, reg->drv2iop_doorbell_reg); | |
2416 | if(arcmsr_hbb_wait_msgint_ready(acb)) { | |
2417 | printk(KERN_NOTICE "ARCMSR IOP enables EOI_MODE TIMEOUT"); | |
2418 | return; | |
2419 | } | |
2420 | } | |
2421 | break; | |
2422 | } | |
2423 | return; | |
2424 | } | |
2425 | ||
36b83ded NC |
2426 | static void arcmsr_hardware_reset(struct AdapterControlBlock *acb) |
2427 | { | |
2428 | uint8_t value[64]; | |
2429 | int i; | |
2430 | ||
2431 | /* backup pci config data */ | |
2432 | for (i = 0; i < 64; i++) { | |
2433 | pci_read_config_byte(acb->pdev, i, &value[i]); | |
2434 | } | |
2435 | /* hardware reset signal */ | |
2436 | pci_write_config_byte(acb->pdev, 0x84, 0x20); | |
2437 | msleep(1000); | |
2438 | /* write back pci config data */ | |
2439 | for (i = 0; i < 64; i++) { | |
2440 | pci_write_config_byte(acb->pdev, i, value[i]); | |
2441 | } | |
2442 | msleep(1000); | |
2443 | return; | |
2444 | } | |
2445 | /* | |
2446 | **************************************************************************** | |
2447 | **************************************************************************** | |
2448 | */ | |
2449 | #ifdef CONFIG_SCSI_ARCMSR_RESET | |
2450 | int arcmsr_sleep_for_bus_reset(struct scsi_cmnd *cmd) | |
2451 | { | |
2452 | struct Scsi_Host *shost = NULL; | |
2453 | spinlock_t *host_lock = NULL; | |
2454 | int i, isleep; | |
2455 | ||
2456 | shost = cmd->device->host; | |
2457 | host_lock = shost->host_lock; | |
2458 | ||
2459 | printk(KERN_NOTICE "Host %d bus reset over, sleep %d seconds (busy %d, can queue %d) ...........\n", | |
2460 | shost->host_no, sleeptime, shost->host_busy, shost->can_queue); | |
2461 | isleep = sleeptime / 10; | |
2462 | spin_unlock_irq(host_lock); | |
2463 | if (isleep > 0) { | |
2464 | for (i = 0; i < isleep; i++) { | |
2465 | msleep(10000); | |
2466 | printk(KERN_NOTICE "^%d^\n", i); | |
2467 | } | |
2468 | } | |
2469 | ||
2470 | isleep = sleeptime % 10; | |
2471 | if (isleep > 0) { | |
2472 | msleep(isleep * 1000); | |
2473 | printk(KERN_NOTICE "^v^\n"); | |
2474 | } | |
2475 | spin_lock_irq(host_lock); | |
2476 | printk(KERN_NOTICE "***** wake up *****\n"); | |
2477 | return 0; | |
2478 | } | |
2479 | #endif | |
1a4f550a NC |
2480 | static void arcmsr_iop_init(struct AdapterControlBlock *acb) |
2481 | { | |
2482 | uint32_t intmask_org; | |
2483 | ||
1a4f550a NC |
2484 | /* disable all outbound interrupt */ |
2485 | intmask_org = arcmsr_disable_outbound_ints(acb); | |
76d78300 NC |
2486 | arcmsr_wait_firmware_ready(acb); |
2487 | arcmsr_iop_confirm(acb); | |
36b83ded | 2488 | arcmsr_get_firmware_spec(acb, 1); |
1a4f550a NC |
2489 | /*start background rebuild*/ |
2490 | arcmsr_start_adapter_bgrb(acb); | |
2491 | /* empty doorbell Qbuffer if door bell ringed */ | |
2492 | arcmsr_clear_doorbell_queue_buffer(acb); | |
76d78300 | 2493 | arcmsr_enable_eoi_mode(acb); |
1a4f550a NC |
2494 | /* enable outbound Post Queue,outbound doorbell Interrupt */ |
2495 | arcmsr_enable_outbound_ints(acb, intmask_org); | |
1c57e86d EC |
2496 | acb->acb_flags |= ACB_F_IOP_INITED; |
2497 | } | |
2498 | ||
36b83ded | 2499 | static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb) |
1c57e86d | 2500 | { |
1c57e86d EC |
2501 | struct CommandControlBlock *ccb; |
2502 | uint32_t intmask_org; | |
36b83ded | 2503 | uint8_t rtnval = 0x00; |
1c57e86d EC |
2504 | int i = 0; |
2505 | ||
2506 | if (atomic_read(&acb->ccboutstandingcount) != 0) { | |
36b83ded NC |
2507 | /* disable all outbound interrupt */ |
2508 | intmask_org = arcmsr_disable_outbound_ints(acb); | |
1c57e86d | 2509 | /* talk to iop 331 outstanding command aborted */ |
36b83ded | 2510 | rtnval = arcmsr_abort_allcmd(acb); |
1c57e86d | 2511 | /* wait for 3 sec for all command aborted*/ |
1a4f550a | 2512 | ssleep(3); |
1c57e86d | 2513 | /* clear all outbound posted Q */ |
1a4f550a | 2514 | arcmsr_done4abort_postqueue(acb); |
1c57e86d EC |
2515 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { |
2516 | ccb = acb->pccb_pool[i]; | |
a1f6e021 | 2517 | if (ccb->startdone == ARCMSR_CCB_START) { |
1a4f550a | 2518 | arcmsr_ccb_complete(ccb, 1); |
1c57e86d EC |
2519 | } |
2520 | } | |
36b83ded | 2521 | atomic_set(&acb->ccboutstandingcount, 0); |
1c57e86d EC |
2522 | /* enable all outbound interrupt */ |
2523 | arcmsr_enable_outbound_ints(acb, intmask_org); | |
36b83ded | 2524 | return rtnval; |
1c57e86d | 2525 | } |
36b83ded | 2526 | return rtnval; |
1c57e86d EC |
2527 | } |
2528 | ||
2529 | static int arcmsr_bus_reset(struct scsi_cmnd *cmd) | |
2530 | { | |
2531 | struct AdapterControlBlock *acb = | |
2532 | (struct AdapterControlBlock *)cmd->device->host->hostdata; | |
36b83ded | 2533 | int retry = 0; |
1c57e86d | 2534 | |
36b83ded NC |
2535 | if (acb->acb_flags & ACB_F_BUS_RESET) |
2536 | return SUCCESS; | |
2537 | ||
2538 | printk(KERN_NOTICE "arcmsr%d: bus reset ..... \n", acb->adapter_index); | |
1c57e86d | 2539 | acb->acb_flags |= ACB_F_BUS_RESET; |
36b83ded NC |
2540 | acb->num_resets++; |
2541 | while (atomic_read(&acb->ccboutstandingcount) != 0 && retry < 4) { | |
2542 | arcmsr_interrupt(acb); | |
2543 | retry++; | |
2544 | } | |
2545 | ||
2546 | if (arcmsr_iop_reset(acb)) { | |
2547 | switch (acb->adapter_type) { | |
2548 | case ACB_ADAPTER_TYPE_A: { | |
2549 | printk(KERN_NOTICE "arcmsr%d: do hardware bus reset, num_resets = %d num_aborts = %d \n", | |
2550 | acb->adapter_index, acb->num_resets, acb->num_aborts); | |
2551 | arcmsr_hardware_reset(acb); | |
2552 | acb->acb_flags |= ACB_F_FIRMWARE_TRAP; | |
2553 | acb->acb_flags &= ~ACB_F_IOP_INITED; | |
2554 | #ifdef CONFIG_SCSI_ARCMSR_RESET | |
2555 | struct MessageUnit_A __iomem *reg = acb->pmuA; | |
2556 | uint32_t intmask_org, outbound_doorbell; | |
2557 | int retry_count = 0; | |
2558 | sleep_again: | |
2559 | arcmsr_sleep_for_bus_reset(cmd); | |
2560 | if ((readl(®->outbound_msgaddr1) & | |
2561 | ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) { | |
2562 | printk(KERN_NOTICE "arcmsr%d: hardware bus reset and return busy, retry=%d \n", | |
2563 | acb->host->host_no, retry_count); | |
2564 | if (retry_count > retrycount) { | |
2565 | printk(KERN_NOTICE "arcmsr%d: hardware bus reset and return busy, retry aborted \n", | |
2566 | acb->host->host_no); | |
2567 | return SUCCESS; | |
2568 | } | |
2569 | retry_count++; | |
2570 | goto sleep_again; | |
2571 | } | |
2572 | acb->acb_flags &= ~ACB_F_FIRMWARE_TRAP; | |
2573 | acb->acb_flags |= ACB_F_IOP_INITED; | |
2574 | acb->acb_flags &= ~ACB_F_BUS_RESET; | |
2575 | printk(KERN_NOTICE "arcmsr%d: hardware bus reset and reset ok \n", | |
2576 | acb->host->host_no); | |
2577 | /* disable all outbound interrupt */ | |
2578 | intmask_org = arcmsr_disable_outbound_ints(acb); | |
2579 | arcmsr_get_firmware_spec(acb, 1); | |
2580 | /*start background rebuild*/ | |
2581 | arcmsr_start_adapter_bgrb(acb); | |
2582 | /* clear Qbuffer if door bell ringed */ | |
2583 | outbound_doorbell = readl(®->outbound_doorbell); | |
2584 | writel(outbound_doorbell, ®->outbound_doorbell); /*clear interrupt */ | |
2585 | writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell); | |
2586 | /* enable outbound Post Queue,outbound doorbell Interrupt */ | |
2587 | arcmsr_enable_outbound_ints(acb, intmask_org); | |
2588 | atomic_set(&acb->rq_map_token, 16); | |
2589 | init_timer(&acb->eternal_timer); | |
2590 | acb->eternal_timer.expires = jiffies + msecs_to_jiffies(20*HZ); | |
2591 | acb->eternal_timer.data = (unsigned long) acb; | |
2592 | acb->eternal_timer.function = &arcmsr_request_device_map; | |
2593 | add_timer(&acb->eternal_timer); | |
2594 | #endif | |
2595 | } | |
1c57e86d | 2596 | break; |
36b83ded | 2597 | case ACB_ADAPTER_TYPE_B: { |
1c57e86d | 2598 | } |
36b83ded NC |
2599 | } |
2600 | } else { | |
1c57e86d | 2601 | acb->acb_flags &= ~ACB_F_BUS_RESET; |
36b83ded | 2602 | } |
1c57e86d EC |
2603 | return SUCCESS; |
2604 | } | |
2605 | ||
2606 | static void arcmsr_abort_one_cmd(struct AdapterControlBlock *acb, | |
2607 | struct CommandControlBlock *ccb) | |
2608 | { | |
2609 | u32 intmask; | |
2610 | ||
2611 | ccb->startdone = ARCMSR_CCB_ABORTED; | |
2612 | ||
2613 | /* | |
2614 | ** Wait for 3 sec for all command done. | |
2615 | */ | |
1a4f550a | 2616 | ssleep(3); |
1c57e86d EC |
2617 | |
2618 | intmask = arcmsr_disable_outbound_ints(acb); | |
2619 | arcmsr_polling_ccbdone(acb, ccb); | |
2620 | arcmsr_enable_outbound_ints(acb, intmask); | |
2621 | } | |
2622 | ||
2623 | static int arcmsr_abort(struct scsi_cmnd *cmd) | |
2624 | { | |
2625 | struct AdapterControlBlock *acb = | |
2626 | (struct AdapterControlBlock *)cmd->device->host->hostdata; | |
2627 | int i = 0; | |
2628 | ||
2629 | printk(KERN_NOTICE | |
a1f6e021 | 2630 | "arcmsr%d: abort device command of scsi id = %d lun = %d \n", |
1c57e86d EC |
2631 | acb->host->host_no, cmd->device->id, cmd->device->lun); |
2632 | acb->num_aborts++; | |
1c57e86d EC |
2633 | /* |
2634 | ************************************************ | |
2635 | ** the all interrupt service routine is locked | |
2636 | ** we need to handle it as soon as possible and exit | |
2637 | ************************************************ | |
2638 | */ | |
2639 | if (!atomic_read(&acb->ccboutstandingcount)) | |
2640 | return SUCCESS; | |
2641 | ||
2642 | for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) { | |
2643 | struct CommandControlBlock *ccb = acb->pccb_pool[i]; | |
2644 | if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) { | |
2645 | arcmsr_abort_one_cmd(acb, ccb); | |
2646 | break; | |
2647 | } | |
2648 | } | |
2649 | ||
2650 | return SUCCESS; | |
2651 | } | |
2652 | ||
2653 | static const char *arcmsr_info(struct Scsi_Host *host) | |
2654 | { | |
2655 | struct AdapterControlBlock *acb = | |
2656 | (struct AdapterControlBlock *) host->hostdata; | |
2657 | static char buf[256]; | |
2658 | char *type; | |
2659 | int raid6 = 1; | |
2660 | ||
2661 | switch (acb->pdev->device) { | |
2662 | case PCI_DEVICE_ID_ARECA_1110: | |
1a4f550a NC |
2663 | case PCI_DEVICE_ID_ARECA_1200: |
2664 | case PCI_DEVICE_ID_ARECA_1202: | |
1c57e86d EC |
2665 | case PCI_DEVICE_ID_ARECA_1210: |
2666 | raid6 = 0; | |
2667 | /*FALLTHRU*/ | |
2668 | case PCI_DEVICE_ID_ARECA_1120: | |
2669 | case PCI_DEVICE_ID_ARECA_1130: | |
2670 | case PCI_DEVICE_ID_ARECA_1160: | |
2671 | case PCI_DEVICE_ID_ARECA_1170: | |
1a4f550a | 2672 | case PCI_DEVICE_ID_ARECA_1201: |
1c57e86d EC |
2673 | case PCI_DEVICE_ID_ARECA_1220: |
2674 | case PCI_DEVICE_ID_ARECA_1230: | |
2675 | case PCI_DEVICE_ID_ARECA_1260: | |
2676 | case PCI_DEVICE_ID_ARECA_1270: | |
2677 | case PCI_DEVICE_ID_ARECA_1280: | |
2678 | type = "SATA"; | |
2679 | break; | |
2680 | case PCI_DEVICE_ID_ARECA_1380: | |
2681 | case PCI_DEVICE_ID_ARECA_1381: | |
2682 | case PCI_DEVICE_ID_ARECA_1680: | |
2683 | case PCI_DEVICE_ID_ARECA_1681: | |
2684 | type = "SAS"; | |
2685 | break; | |
2686 | default: | |
2687 | type = "X-TYPE"; | |
2688 | break; | |
2689 | } | |
a1f6e021 | 2690 | sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s", |
1c57e86d EC |
2691 | type, raid6 ? "( RAID6 capable)" : "", |
2692 | ARCMSR_DRIVER_VERSION); | |
2693 | return buf; | |
2694 | } |