]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Adaptec AAC series RAID controller driver | |
fa195afe | 3 | * (c) Copyright 2001 Red Hat Inc. |
1da177e4 LT |
4 | * |
5 | * based on the old aacraid driver that is.. | |
6 | * Adaptec aacraid device driver for Linux. | |
7 | * | |
4dfb7cbe | 8 | * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) |
1da177e4 LT |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2, or (at your option) | |
13 | * any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; see the file COPYING. If not, write to | |
22 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | * | |
24 | * Module Name: | |
25 | * comminit.c | |
26 | * | |
27 | * Abstract: This supports the initialization of the host adapter commuication interface. | |
28 | * This is a platform dependent module for the pci cyclone board. | |
29 | * | |
30 | */ | |
31 | ||
32 | #include <linux/kernel.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/types.h> | |
1da177e4 LT |
35 | #include <linux/pci.h> |
36 | #include <linux/spinlock.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/blkdev.h> | |
39 | #include <linux/completion.h> | |
40 | #include <linux/mm.h> | |
7c00ffa3 | 41 | #include <scsi/scsi_host.h> |
1da177e4 LT |
42 | |
43 | #include "aacraid.h" | |
44 | ||
bed30de4 MH |
45 | struct aac_common aac_config = { |
46 | .irq_mod = 1 | |
47 | }; | |
1da177e4 LT |
48 | |
49 | static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign) | |
50 | { | |
51 | unsigned char *base; | |
52 | unsigned long size, align; | |
7c00ffa3 MH |
53 | const unsigned long fibsize = 4096; |
54 | const unsigned long printfbufsiz = 256; | |
1da177e4 LT |
55 | struct aac_init *init; |
56 | dma_addr_t phys; | |
d8e96507 | 57 | unsigned long aac_max_hostphysmempages; |
1da177e4 LT |
58 | |
59 | size = fibsize + sizeof(struct aac_init) + commsize + commalign + printfbufsiz; | |
60 | ||
61 | ||
62 | base = pci_alloc_consistent(dev->pdev, size, &phys); | |
63 | ||
64 | if(base == NULL) | |
65 | { | |
66 | printk(KERN_ERR "aacraid: unable to create mapping.\n"); | |
67 | return 0; | |
68 | } | |
69 | dev->comm_addr = (void *)base; | |
70 | dev->comm_phys = phys; | |
71 | dev->comm_size = size; | |
72 | ||
73 | dev->init = (struct aac_init *)(base + fibsize); | |
74 | dev->init_pa = phys + fibsize; | |
75 | ||
76 | init = dev->init; | |
77 | ||
78 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION); | |
7c00ffa3 MH |
79 | if (dev->max_fib_size != sizeof(struct hw_fib)) |
80 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4); | |
1da177e4 LT |
81 | init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION); |
82 | init->fsrev = cpu_to_le32(dev->fsrev); | |
83 | ||
84 | /* | |
85 | * Adapter Fibs are the first thing allocated so that they | |
86 | * start page aligned | |
87 | */ | |
88 | dev->aif_base_va = (struct hw_fib *)base; | |
89 | ||
90 | init->AdapterFibsVirtualAddress = 0; | |
91 | init->AdapterFibsPhysicalAddress = cpu_to_le32((u32)phys); | |
92 | init->AdapterFibsSize = cpu_to_le32(fibsize); | |
93 | init->AdapterFibAlign = cpu_to_le32(sizeof(struct hw_fib)); | |
d8e96507 LA |
94 | /* |
95 | * number of 4k pages of host physical memory. The aacraid fw needs | |
96 | * this number to be less than 4gb worth of pages. New firmware doesn't | |
97 | * have any issues with the mapping system, but older Firmware did, and | |
98 | * had *troubles* dealing with the math overloading past 32 bits, thus | |
99 | * we must limit this field. | |
100 | */ | |
101 | aac_max_hostphysmempages = dma_get_required_mask(&dev->pdev->dev) >> 12; | |
102 | if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES) | |
103 | init->HostPhysMemPages = cpu_to_le32(aac_max_hostphysmempages); | |
104 | else | |
105 | init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES); | |
1da177e4 | 106 | |
7c00ffa3 | 107 | init->InitFlags = 0; |
28713324 | 108 | if (dev->comm_interface == AAC_COMM_MESSAGE) { |
8e0c5ebd MH |
109 | init->InitFlags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); |
110 | dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n")); | |
111 | } | |
655d722c MS |
112 | init->InitFlags |= cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME | |
113 | INITFLAGS_DRIVER_SUPPORTS_PM); | |
7c00ffa3 MH |
114 | init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); |
115 | init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); | |
116 | init->MaxFibSize = cpu_to_le32(dev->max_fib_size); | |
1da177e4 LT |
117 | |
118 | /* | |
119 | * Increment the base address by the amount already used | |
120 | */ | |
121 | base = base + fibsize + sizeof(struct aac_init); | |
122 | phys = (dma_addr_t)((ulong)phys + fibsize + sizeof(struct aac_init)); | |
123 | /* | |
124 | * Align the beginning of Headers to commalign | |
125 | */ | |
142956af | 126 | align = (commalign - ((uintptr_t)(base) & (commalign - 1))); |
1da177e4 LT |
127 | base = base + align; |
128 | phys = phys + align; | |
129 | /* | |
130 | * Fill in addresses of the Comm Area Headers and Queues | |
131 | */ | |
132 | *commaddr = base; | |
133 | init->CommHeaderAddress = cpu_to_le32((u32)phys); | |
134 | /* | |
135 | * Increment the base address by the size of the CommArea | |
136 | */ | |
137 | base = base + commsize; | |
138 | phys = phys + commsize; | |
139 | /* | |
140 | * Place the Printf buffer area after the Fast I/O comm area. | |
141 | */ | |
142 | dev->printfbuf = (void *)base; | |
143 | init->printfbuf = cpu_to_le32(phys); | |
144 | init->printfbufsiz = cpu_to_le32(printfbufsiz); | |
145 | memset(base, 0, printfbufsiz); | |
146 | return 1; | |
147 | } | |
148 | ||
149 | static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize) | |
150 | { | |
151 | q->numpending = 0; | |
152 | q->dev = dev; | |
1da177e4 LT |
153 | init_waitqueue_head(&q->cmdready); |
154 | INIT_LIST_HEAD(&q->cmdq); | |
155 | init_waitqueue_head(&q->qfull); | |
156 | spin_lock_init(&q->lockdata); | |
157 | q->lock = &q->lockdata; | |
56b58712 MH |
158 | q->headers.producer = (__le32 *)mem; |
159 | q->headers.consumer = (__le32 *)(mem+1); | |
1da177e4 LT |
160 | *(q->headers.producer) = cpu_to_le32(qsize); |
161 | *(q->headers.consumer) = cpu_to_le32(qsize); | |
162 | q->entries = qsize; | |
163 | } | |
164 | ||
165 | /** | |
166 | * aac_send_shutdown - shutdown an adapter | |
167 | * @dev: Adapter to shutdown | |
168 | * | |
169 | * This routine will send a VM_CloseAll (shutdown) request to the adapter. | |
170 | */ | |
171 | ||
172 | int aac_send_shutdown(struct aac_dev * dev) | |
173 | { | |
174 | struct fib * fibctx; | |
175 | struct aac_close *cmd; | |
176 | int status; | |
177 | ||
bfb35aa8 | 178 | fibctx = aac_fib_alloc(dev); |
7c00ffa3 MH |
179 | if (!fibctx) |
180 | return -ENOMEM; | |
bfb35aa8 | 181 | aac_fib_init(fibctx); |
1da177e4 LT |
182 | |
183 | cmd = (struct aac_close *) fib_data(fibctx); | |
184 | ||
185 | cmd->command = cpu_to_le32(VM_CloseAll); | |
186 | cmd->cid = cpu_to_le32(0xffffffff); | |
187 | ||
bfb35aa8 | 188 | status = aac_fib_send(ContainerCommand, |
1da177e4 LT |
189 | fibctx, |
190 | sizeof(struct aac_close), | |
191 | FsaNormal, | |
9203344c | 192 | -2 /* Timeout silently */, 1, |
1da177e4 LT |
193 | NULL, NULL); |
194 | ||
90ee3466 | 195 | if (status >= 0) |
bfb35aa8 MH |
196 | aac_fib_complete(fibctx); |
197 | aac_fib_free(fibctx); | |
1da177e4 LT |
198 | return status; |
199 | } | |
200 | ||
201 | /** | |
202 | * aac_comm_init - Initialise FSA data structures | |
203 | * @dev: Adapter to initialise | |
204 | * | |
205 | * Initializes the data structures that are required for the FSA commuication | |
206 | * interface to operate. | |
207 | * Returns | |
208 | * 1 - if we were able to init the commuication interface. | |
209 | * 0 - If there were errors initing. This is a fatal error. | |
210 | */ | |
211 | ||
4833869e | 212 | static int aac_comm_init(struct aac_dev * dev) |
1da177e4 LT |
213 | { |
214 | unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2; | |
215 | unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES; | |
216 | u32 *headers; | |
217 | struct aac_entry * queues; | |
218 | unsigned long size; | |
219 | struct aac_queue_block * comm = dev->queues; | |
220 | /* | |
221 | * Now allocate and initialize the zone structures used as our | |
222 | * pool of FIB context records. The size of the zone is based | |
223 | * on the system memory size. We also initialize the mutex used | |
224 | * to protect the zone. | |
225 | */ | |
226 | spin_lock_init(&dev->fib_lock); | |
227 | ||
228 | /* | |
af901ca1 | 229 | * Allocate the physically contiguous space for the commuication |
1da177e4 LT |
230 | * queue headers. |
231 | */ | |
232 | ||
233 | size = hdrsize + queuesize; | |
234 | ||
235 | if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT)) | |
236 | return -ENOMEM; | |
237 | ||
238 | queues = (struct aac_entry *)(((ulong)headers) + hdrsize); | |
239 | ||
240 | /* Adapter to Host normal priority Command queue */ | |
241 | comm->queue[HostNormCmdQueue].base = queues; | |
242 | aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES); | |
243 | queues += HOST_NORM_CMD_ENTRIES; | |
244 | headers += 2; | |
245 | ||
246 | /* Adapter to Host high priority command queue */ | |
247 | comm->queue[HostHighCmdQueue].base = queues; | |
248 | aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES); | |
249 | ||
250 | queues += HOST_HIGH_CMD_ENTRIES; | |
251 | headers +=2; | |
252 | ||
253 | /* Host to adapter normal priority command queue */ | |
254 | comm->queue[AdapNormCmdQueue].base = queues; | |
255 | aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES); | |
256 | ||
257 | queues += ADAP_NORM_CMD_ENTRIES; | |
258 | headers += 2; | |
259 | ||
260 | /* host to adapter high priority command queue */ | |
261 | comm->queue[AdapHighCmdQueue].base = queues; | |
262 | aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES); | |
263 | ||
264 | queues += ADAP_HIGH_CMD_ENTRIES; | |
265 | headers += 2; | |
266 | ||
267 | /* adapter to host normal priority response queue */ | |
268 | comm->queue[HostNormRespQueue].base = queues; | |
269 | aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES); | |
270 | queues += HOST_NORM_RESP_ENTRIES; | |
271 | headers += 2; | |
272 | ||
273 | /* adapter to host high priority response queue */ | |
274 | comm->queue[HostHighRespQueue].base = queues; | |
275 | aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES); | |
276 | ||
277 | queues += HOST_HIGH_RESP_ENTRIES; | |
278 | headers += 2; | |
279 | ||
280 | /* host to adapter normal priority response queue */ | |
281 | comm->queue[AdapNormRespQueue].base = queues; | |
282 | aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES); | |
283 | ||
284 | queues += ADAP_NORM_RESP_ENTRIES; | |
285 | headers += 2; | |
286 | ||
287 | /* host to adapter high priority response queue */ | |
288 | comm->queue[AdapHighRespQueue].base = queues; | |
289 | aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES); | |
290 | ||
291 | comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock; | |
292 | comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock; | |
293 | comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock; | |
294 | comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock; | |
295 | ||
296 | return 0; | |
297 | } | |
298 | ||
299 | struct aac_dev *aac_init_adapter(struct aac_dev *dev) | |
300 | { | |
7c00ffa3 MH |
301 | u32 status[5]; |
302 | struct Scsi_Host * host = dev->scsi_host_ptr; | |
303 | ||
304 | /* | |
305 | * Check the preferred comm settings, defaults from template. | |
306 | */ | |
307 | dev->max_fib_size = sizeof(struct hw_fib); | |
308 | dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size | |
309 | - sizeof(struct aac_fibhdr) | |
63a70eea MH |
310 | - sizeof(struct aac_write) + sizeof(struct sgentry)) |
311 | / sizeof(struct sgentry); | |
28713324 | 312 | dev->comm_interface = AAC_COMM_PRODUCER; |
7a8cf29d MH |
313 | dev->raw_io_64 = 0; |
314 | if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, | |
315 | 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) && | |
316 | (status[0] == 0x00000001)) { | |
a3940da5 | 317 | if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64)) |
7a8cf29d | 318 | dev->raw_io_64 = 1; |
28713324 | 319 | if (dev->a_ops.adapter_comm && |
a3940da5 | 320 | (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM))) |
28713324 MH |
321 | dev->comm_interface = AAC_COMM_MESSAGE; |
322 | if ((dev->comm_interface == AAC_COMM_MESSAGE) && | |
323 | (status[2] > dev->base_size)) { | |
76a7f8fd | 324 | aac_adapter_ioremap(dev, 0); |
8e0c5ebd | 325 | dev->base_size = status[2]; |
76a7f8fd | 326 | if (aac_adapter_ioremap(dev, status[2])) { |
8e0c5ebd | 327 | /* remap failed, go back ... */ |
28713324 | 328 | dev->comm_interface = AAC_COMM_PRODUCER; |
76a7f8fd | 329 | if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) { |
8e0c5ebd MH |
330 | printk(KERN_WARNING |
331 | "aacraid: unable to map adapter.\n"); | |
332 | return NULL; | |
333 | } | |
334 | } | |
335 | } | |
7a8cf29d | 336 | } |
7c00ffa3 MH |
337 | if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, |
338 | 0, 0, 0, 0, 0, 0, | |
339 | status+0, status+1, status+2, status+3, status+4)) | |
340 | && (status[0] == 0x00000001)) { | |
341 | /* | |
342 | * status[1] >> 16 maximum command size in KB | |
343 | * status[1] & 0xFFFF maximum FIB size | |
344 | * status[2] >> 16 maximum SG elements to driver | |
345 | * status[2] & 0xFFFF maximum SG elements from driver | |
346 | * status[3] & 0xFFFF maximum number FIBs outstanding | |
347 | */ | |
348 | host->max_sectors = (status[1] >> 16) << 1; | |
349 | dev->max_fib_size = status[1] & 0xFFFF; | |
350 | host->sg_tablesize = status[2] >> 16; | |
351 | dev->sg_tablesize = status[2] & 0xFFFF; | |
352 | host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB; | |
353 | /* | |
354 | * NOTE: | |
355 | * All these overrides are based on a fixed internal | |
356 | * knowledge and understanding of existing adapters, | |
357 | * acbsize should be set with caution. | |
358 | */ | |
359 | if (acbsize == 512) { | |
360 | host->max_sectors = AAC_MAX_32BIT_SGBCOUNT; | |
361 | dev->max_fib_size = 512; | |
362 | dev->sg_tablesize = host->sg_tablesize | |
363 | = (512 - sizeof(struct aac_fibhdr) | |
63a70eea MH |
364 | - sizeof(struct aac_write) + sizeof(struct sgentry)) |
365 | / sizeof(struct sgentry); | |
7c00ffa3 MH |
366 | host->can_queue = AAC_NUM_IO_FIB; |
367 | } else if (acbsize == 2048) { | |
368 | host->max_sectors = 512; | |
369 | dev->max_fib_size = 2048; | |
370 | host->sg_tablesize = 65; | |
371 | dev->sg_tablesize = 81; | |
372 | host->can_queue = 512 - AAC_NUM_MGT_FIB; | |
373 | } else if (acbsize == 4096) { | |
374 | host->max_sectors = 1024; | |
375 | dev->max_fib_size = 4096; | |
376 | host->sg_tablesize = 129; | |
377 | dev->sg_tablesize = 166; | |
378 | host->can_queue = 256 - AAC_NUM_MGT_FIB; | |
379 | } else if (acbsize == 8192) { | |
380 | host->max_sectors = 2048; | |
381 | dev->max_fib_size = 8192; | |
382 | host->sg_tablesize = 257; | |
383 | dev->sg_tablesize = 337; | |
384 | host->can_queue = 128 - AAC_NUM_MGT_FIB; | |
385 | } else if (acbsize > 0) { | |
386 | printk("Illegal acbsize=%d ignored\n", acbsize); | |
387 | } | |
388 | } | |
389 | { | |
390 | ||
391 | if (numacb > 0) { | |
392 | if (numacb < host->can_queue) | |
393 | host->can_queue = numacb; | |
394 | else | |
395 | printk("numacb=%d ignored\n", numacb); | |
396 | } | |
397 | } | |
398 | ||
1da177e4 LT |
399 | /* |
400 | * Ok now init the communication subsystem | |
401 | */ | |
402 | ||
4dbc22d7 | 403 | dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL); |
1da177e4 LT |
404 | if (dev->queues == NULL) { |
405 | printk(KERN_ERR "Error could not allocate comm region.\n"); | |
406 | return NULL; | |
407 | } | |
1da177e4 LT |
408 | |
409 | if (aac_comm_init(dev)<0){ | |
410 | kfree(dev->queues); | |
411 | return NULL; | |
412 | } | |
413 | /* | |
414 | * Initialize the list of fibs | |
415 | */ | |
bfb35aa8 | 416 | if (aac_fib_setup(dev) < 0) { |
1da177e4 LT |
417 | kfree(dev->queues); |
418 | return NULL; | |
419 | } | |
420 | ||
421 | INIT_LIST_HEAD(&dev->fib_list); | |
1da177e4 LT |
422 | |
423 | return dev; | |
424 | } | |
425 | ||
426 |