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 | * | |
e8b12f0f MR |
8 | * Copyright (c) 2000-2010 Adaptec, Inc. |
9 | * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) | |
1da177e4 LT |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2, or (at your option) | |
14 | * any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; see the file COPYING. If not, write to | |
23 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | * | |
25 | * Module Name: | |
26 | * comminit.c | |
27 | * | |
28 | * Abstract: This supports the initialization of the host adapter commuication interface. | |
29 | * This is a platform dependent module for the pci cyclone board. | |
30 | * | |
31 | */ | |
32 | ||
33 | #include <linux/kernel.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/types.h> | |
1da177e4 LT |
36 | #include <linux/pci.h> |
37 | #include <linux/spinlock.h> | |
38 | #include <linux/slab.h> | |
39 | #include <linux/blkdev.h> | |
40 | #include <linux/completion.h> | |
41 | #include <linux/mm.h> | |
7c00ffa3 | 42 | #include <scsi/scsi_host.h> |
1da177e4 LT |
43 | |
44 | #include "aacraid.h" | |
45 | ||
bed30de4 MH |
46 | struct aac_common aac_config = { |
47 | .irq_mod = 1 | |
48 | }; | |
1da177e4 LT |
49 | |
50 | static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign) | |
51 | { | |
52 | unsigned char *base; | |
53 | unsigned long size, align; | |
7c00ffa3 MH |
54 | const unsigned long fibsize = 4096; |
55 | const unsigned long printfbufsiz = 256; | |
e8b12f0f | 56 | unsigned long host_rrq_size = 0; |
1da177e4 LT |
57 | struct aac_init *init; |
58 | dma_addr_t phys; | |
d8e96507 | 59 | unsigned long aac_max_hostphysmempages; |
1da177e4 | 60 | |
85d22bbf MR |
61 | if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 || |
62 | dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) | |
e8b12f0f MR |
63 | host_rrq_size = (dev->scsi_host_ptr->can_queue |
64 | + AAC_NUM_MGT_FIB) * sizeof(u32); | |
65 | size = fibsize + sizeof(struct aac_init) + commsize + | |
66 | commalign + printfbufsiz + host_rrq_size; | |
1da177e4 LT |
67 | |
68 | base = pci_alloc_consistent(dev->pdev, size, &phys); | |
69 | ||
70 | if(base == NULL) | |
71 | { | |
72 | printk(KERN_ERR "aacraid: unable to create mapping.\n"); | |
73 | return 0; | |
74 | } | |
75 | dev->comm_addr = (void *)base; | |
76 | dev->comm_phys = phys; | |
77 | dev->comm_size = size; | |
78 | ||
85d22bbf MR |
79 | if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 || |
80 | dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { | |
e8b12f0f MR |
81 | dev->host_rrq = (u32 *)(base + fibsize); |
82 | dev->host_rrq_pa = phys + fibsize; | |
83 | memset(dev->host_rrq, 0, host_rrq_size); | |
84 | } | |
85 | ||
86 | dev->init = (struct aac_init *)(base + fibsize + host_rrq_size); | |
87 | dev->init_pa = phys + fibsize + host_rrq_size; | |
1da177e4 LT |
88 | |
89 | init = dev->init; | |
90 | ||
91 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION); | |
7c00ffa3 MH |
92 | if (dev->max_fib_size != sizeof(struct hw_fib)) |
93 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4); | |
1da177e4 LT |
94 | init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION); |
95 | init->fsrev = cpu_to_le32(dev->fsrev); | |
96 | ||
97 | /* | |
98 | * Adapter Fibs are the first thing allocated so that they | |
99 | * start page aligned | |
100 | */ | |
101 | dev->aif_base_va = (struct hw_fib *)base; | |
102 | ||
103 | init->AdapterFibsVirtualAddress = 0; | |
104 | init->AdapterFibsPhysicalAddress = cpu_to_le32((u32)phys); | |
105 | init->AdapterFibsSize = cpu_to_le32(fibsize); | |
106 | init->AdapterFibAlign = cpu_to_le32(sizeof(struct hw_fib)); | |
d8e96507 LA |
107 | /* |
108 | * number of 4k pages of host physical memory. The aacraid fw needs | |
109 | * this number to be less than 4gb worth of pages. New firmware doesn't | |
110 | * have any issues with the mapping system, but older Firmware did, and | |
111 | * had *troubles* dealing with the math overloading past 32 bits, thus | |
112 | * we must limit this field. | |
113 | */ | |
114 | aac_max_hostphysmempages = dma_get_required_mask(&dev->pdev->dev) >> 12; | |
115 | if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES) | |
116 | init->HostPhysMemPages = cpu_to_le32(aac_max_hostphysmempages); | |
117 | else | |
118 | init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES); | |
1da177e4 | 119 | |
85d22bbf MR |
120 | init->InitFlags = cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME | |
121 | INITFLAGS_DRIVER_SUPPORTS_PM); | |
122 | init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); | |
123 | init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); | |
124 | init->MaxFibSize = cpu_to_le32(dev->max_fib_size); | |
125 | init->MaxNumAif = cpu_to_le32(dev->max_num_aif); | |
126 | ||
28713324 | 127 | if (dev->comm_interface == AAC_COMM_MESSAGE) { |
e8b12f0f | 128 | init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); |
8e0c5ebd | 129 | dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n")); |
e8b12f0f MR |
130 | } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { |
131 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6); | |
85d22bbf MR |
132 | init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | |
133 | INITFLAGS_NEW_COMM_TYPE1_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED); | |
134 | init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32)); | |
135 | init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff)); | |
136 | dprintk((KERN_WARNING"aacraid: New Comm Interface type1 enabled\n")); | |
137 | } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { | |
138 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_7); | |
139 | init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | | |
140 | INITFLAGS_NEW_COMM_TYPE2_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED); | |
141 | init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32)); | |
142 | init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff)); | |
143 | init->MiniPortRevision = cpu_to_le32(0L); /* number of MSI-X */ | |
144 | dprintk((KERN_WARNING"aacraid: New Comm Interface type2 enabled\n")); | |
8e0c5ebd | 145 | } |
e8b12f0f | 146 | |
1da177e4 LT |
147 | /* |
148 | * Increment the base address by the amount already used | |
149 | */ | |
e8b12f0f MR |
150 | base = base + fibsize + host_rrq_size + sizeof(struct aac_init); |
151 | phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size + | |
152 | sizeof(struct aac_init)); | |
153 | ||
1da177e4 LT |
154 | /* |
155 | * Align the beginning of Headers to commalign | |
156 | */ | |
142956af | 157 | align = (commalign - ((uintptr_t)(base) & (commalign - 1))); |
1da177e4 LT |
158 | base = base + align; |
159 | phys = phys + align; | |
160 | /* | |
161 | * Fill in addresses of the Comm Area Headers and Queues | |
162 | */ | |
163 | *commaddr = base; | |
164 | init->CommHeaderAddress = cpu_to_le32((u32)phys); | |
165 | /* | |
166 | * Increment the base address by the size of the CommArea | |
167 | */ | |
168 | base = base + commsize; | |
169 | phys = phys + commsize; | |
170 | /* | |
171 | * Place the Printf buffer area after the Fast I/O comm area. | |
172 | */ | |
173 | dev->printfbuf = (void *)base; | |
174 | init->printfbuf = cpu_to_le32(phys); | |
175 | init->printfbufsiz = cpu_to_le32(printfbufsiz); | |
176 | memset(base, 0, printfbufsiz); | |
177 | return 1; | |
178 | } | |
179 | ||
180 | static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize) | |
181 | { | |
182 | q->numpending = 0; | |
183 | q->dev = dev; | |
1da177e4 LT |
184 | init_waitqueue_head(&q->cmdready); |
185 | INIT_LIST_HEAD(&q->cmdq); | |
186 | init_waitqueue_head(&q->qfull); | |
187 | spin_lock_init(&q->lockdata); | |
188 | q->lock = &q->lockdata; | |
56b58712 MH |
189 | q->headers.producer = (__le32 *)mem; |
190 | q->headers.consumer = (__le32 *)(mem+1); | |
1da177e4 LT |
191 | *(q->headers.producer) = cpu_to_le32(qsize); |
192 | *(q->headers.consumer) = cpu_to_le32(qsize); | |
193 | q->entries = qsize; | |
194 | } | |
195 | ||
196 | /** | |
197 | * aac_send_shutdown - shutdown an adapter | |
198 | * @dev: Adapter to shutdown | |
199 | * | |
200 | * This routine will send a VM_CloseAll (shutdown) request to the adapter. | |
201 | */ | |
202 | ||
203 | int aac_send_shutdown(struct aac_dev * dev) | |
204 | { | |
205 | struct fib * fibctx; | |
206 | struct aac_close *cmd; | |
207 | int status; | |
208 | ||
bfb35aa8 | 209 | fibctx = aac_fib_alloc(dev); |
7c00ffa3 MH |
210 | if (!fibctx) |
211 | return -ENOMEM; | |
bfb35aa8 | 212 | aac_fib_init(fibctx); |
1da177e4 LT |
213 | |
214 | cmd = (struct aac_close *) fib_data(fibctx); | |
215 | ||
216 | cmd->command = cpu_to_le32(VM_CloseAll); | |
2c10cd43 | 217 | cmd->cid = cpu_to_le32(0xfffffffe); |
1da177e4 | 218 | |
bfb35aa8 | 219 | status = aac_fib_send(ContainerCommand, |
1da177e4 LT |
220 | fibctx, |
221 | sizeof(struct aac_close), | |
222 | FsaNormal, | |
9203344c | 223 | -2 /* Timeout silently */, 1, |
1da177e4 LT |
224 | NULL, NULL); |
225 | ||
90ee3466 | 226 | if (status >= 0) |
bfb35aa8 | 227 | aac_fib_complete(fibctx); |
cacb6dc3 PNRCEH |
228 | /* FIB should be freed only after getting the response from the F/W */ |
229 | if (status != -ERESTARTSYS) | |
230 | aac_fib_free(fibctx); | |
1da177e4 LT |
231 | return status; |
232 | } | |
233 | ||
234 | /** | |
235 | * aac_comm_init - Initialise FSA data structures | |
236 | * @dev: Adapter to initialise | |
237 | * | |
238 | * Initializes the data structures that are required for the FSA commuication | |
239 | * interface to operate. | |
240 | * Returns | |
241 | * 1 - if we were able to init the commuication interface. | |
242 | * 0 - If there were errors initing. This is a fatal error. | |
243 | */ | |
244 | ||
4833869e | 245 | static int aac_comm_init(struct aac_dev * dev) |
1da177e4 LT |
246 | { |
247 | unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2; | |
248 | unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES; | |
249 | u32 *headers; | |
250 | struct aac_entry * queues; | |
251 | unsigned long size; | |
252 | struct aac_queue_block * comm = dev->queues; | |
253 | /* | |
254 | * Now allocate and initialize the zone structures used as our | |
255 | * pool of FIB context records. The size of the zone is based | |
256 | * on the system memory size. We also initialize the mutex used | |
257 | * to protect the zone. | |
258 | */ | |
259 | spin_lock_init(&dev->fib_lock); | |
260 | ||
261 | /* | |
af901ca1 | 262 | * Allocate the physically contiguous space for the commuication |
1da177e4 LT |
263 | * queue headers. |
264 | */ | |
265 | ||
266 | size = hdrsize + queuesize; | |
267 | ||
268 | if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT)) | |
269 | return -ENOMEM; | |
270 | ||
271 | queues = (struct aac_entry *)(((ulong)headers) + hdrsize); | |
272 | ||
273 | /* Adapter to Host normal priority Command queue */ | |
274 | comm->queue[HostNormCmdQueue].base = queues; | |
275 | aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES); | |
276 | queues += HOST_NORM_CMD_ENTRIES; | |
277 | headers += 2; | |
278 | ||
279 | /* Adapter to Host high priority command queue */ | |
280 | comm->queue[HostHighCmdQueue].base = queues; | |
281 | aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES); | |
282 | ||
283 | queues += HOST_HIGH_CMD_ENTRIES; | |
284 | headers +=2; | |
285 | ||
286 | /* Host to adapter normal priority command queue */ | |
287 | comm->queue[AdapNormCmdQueue].base = queues; | |
288 | aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES); | |
289 | ||
290 | queues += ADAP_NORM_CMD_ENTRIES; | |
291 | headers += 2; | |
292 | ||
293 | /* host to adapter high priority command queue */ | |
294 | comm->queue[AdapHighCmdQueue].base = queues; | |
295 | aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES); | |
296 | ||
297 | queues += ADAP_HIGH_CMD_ENTRIES; | |
298 | headers += 2; | |
299 | ||
300 | /* adapter to host normal priority response queue */ | |
301 | comm->queue[HostNormRespQueue].base = queues; | |
302 | aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES); | |
303 | queues += HOST_NORM_RESP_ENTRIES; | |
304 | headers += 2; | |
305 | ||
306 | /* adapter to host high priority response queue */ | |
307 | comm->queue[HostHighRespQueue].base = queues; | |
308 | aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES); | |
309 | ||
310 | queues += HOST_HIGH_RESP_ENTRIES; | |
311 | headers += 2; | |
312 | ||
313 | /* host to adapter normal priority response queue */ | |
314 | comm->queue[AdapNormRespQueue].base = queues; | |
315 | aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES); | |
316 | ||
317 | queues += ADAP_NORM_RESP_ENTRIES; | |
318 | headers += 2; | |
319 | ||
320 | /* host to adapter high priority response queue */ | |
321 | comm->queue[AdapHighRespQueue].base = queues; | |
322 | aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES); | |
323 | ||
324 | comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock; | |
325 | comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock; | |
326 | comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock; | |
327 | comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock; | |
328 | ||
329 | return 0; | |
330 | } | |
331 | ||
332 | struct aac_dev *aac_init_adapter(struct aac_dev *dev) | |
333 | { | |
7c00ffa3 MH |
334 | u32 status[5]; |
335 | struct Scsi_Host * host = dev->scsi_host_ptr; | |
11604612 | 336 | extern int aac_sync_mode; |
7c00ffa3 MH |
337 | |
338 | /* | |
339 | * Check the preferred comm settings, defaults from template. | |
340 | */ | |
cacb6dc3 PNRCEH |
341 | dev->management_fib_count = 0; |
342 | spin_lock_init(&dev->manage_lock); | |
11604612 | 343 | spin_lock_init(&dev->sync_lock); |
7c00ffa3 MH |
344 | dev->max_fib_size = sizeof(struct hw_fib); |
345 | dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size | |
346 | - sizeof(struct aac_fibhdr) | |
63a70eea MH |
347 | - sizeof(struct aac_write) + sizeof(struct sgentry)) |
348 | / sizeof(struct sgentry); | |
28713324 | 349 | dev->comm_interface = AAC_COMM_PRODUCER; |
e8b12f0f MR |
350 | dev->raw_io_interface = dev->raw_io_64 = 0; |
351 | ||
7a8cf29d MH |
352 | if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, |
353 | 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) && | |
354 | (status[0] == 0x00000001)) { | |
a3940da5 | 355 | if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64)) |
7a8cf29d | 356 | dev->raw_io_64 = 1; |
11604612 MR |
357 | dev->sync_mode = aac_sync_mode; |
358 | if (dev->a_ops.adapter_comm && | |
359 | (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM))) { | |
e8b12f0f MR |
360 | dev->comm_interface = AAC_COMM_MESSAGE; |
361 | dev->raw_io_interface = 1; | |
11604612 MR |
362 | if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1))) { |
363 | /* driver supports TYPE1 (Tupelo) */ | |
364 | dev->comm_interface = AAC_COMM_MESSAGE_TYPE1; | |
85d22bbf MR |
365 | } else if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE2))) { |
366 | /* driver supports TYPE2 (Denali) */ | |
367 | dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; | |
11604612 | 368 | } else if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE4)) || |
85d22bbf MR |
369 | (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE3))) { |
370 | /* driver doesn't TYPE3 and TYPE4 */ | |
371 | /* switch to sync. mode */ | |
372 | dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; | |
373 | dev->sync_mode = 1; | |
e8b12f0f MR |
374 | } |
375 | } | |
28713324 MH |
376 | if ((dev->comm_interface == AAC_COMM_MESSAGE) && |
377 | (status[2] > dev->base_size)) { | |
76a7f8fd | 378 | aac_adapter_ioremap(dev, 0); |
8e0c5ebd | 379 | dev->base_size = status[2]; |
76a7f8fd | 380 | if (aac_adapter_ioremap(dev, status[2])) { |
8e0c5ebd | 381 | /* remap failed, go back ... */ |
28713324 | 382 | dev->comm_interface = AAC_COMM_PRODUCER; |
76a7f8fd | 383 | if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) { |
8e0c5ebd MH |
384 | printk(KERN_WARNING |
385 | "aacraid: unable to map adapter.\n"); | |
386 | return NULL; | |
387 | } | |
388 | } | |
389 | } | |
7a8cf29d | 390 | } |
7c00ffa3 MH |
391 | if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, |
392 | 0, 0, 0, 0, 0, 0, | |
393 | status+0, status+1, status+2, status+3, status+4)) | |
394 | && (status[0] == 0x00000001)) { | |
395 | /* | |
396 | * status[1] >> 16 maximum command size in KB | |
397 | * status[1] & 0xFFFF maximum FIB size | |
398 | * status[2] >> 16 maximum SG elements to driver | |
399 | * status[2] & 0xFFFF maximum SG elements from driver | |
400 | * status[3] & 0xFFFF maximum number FIBs outstanding | |
401 | */ | |
402 | host->max_sectors = (status[1] >> 16) << 1; | |
e8b12f0f MR |
403 | /* Multiple of 32 for PMC */ |
404 | dev->max_fib_size = status[1] & 0xFFE0; | |
7c00ffa3 MH |
405 | host->sg_tablesize = status[2] >> 16; |
406 | dev->sg_tablesize = status[2] & 0xFFFF; | |
2b4df6ea MR |
407 | if (dev->pdev->device == PMC_DEVICE_S7 || |
408 | dev->pdev->device == PMC_DEVICE_S8 || | |
409 | dev->pdev->device == PMC_DEVICE_S9) | |
410 | host->can_queue = ((status[3] >> 16) ? (status[3] >> 16) : | |
411 | (status[3] & 0xFFFF)) - AAC_NUM_MGT_FIB; | |
412 | else | |
413 | host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB; | |
e8b12f0f | 414 | dev->max_num_aif = status[4] & 0xFFFF; |
7c00ffa3 MH |
415 | /* |
416 | * NOTE: | |
417 | * All these overrides are based on a fixed internal | |
418 | * knowledge and understanding of existing adapters, | |
419 | * acbsize should be set with caution. | |
420 | */ | |
421 | if (acbsize == 512) { | |
422 | host->max_sectors = AAC_MAX_32BIT_SGBCOUNT; | |
423 | dev->max_fib_size = 512; | |
424 | dev->sg_tablesize = host->sg_tablesize | |
425 | = (512 - sizeof(struct aac_fibhdr) | |
63a70eea MH |
426 | - sizeof(struct aac_write) + sizeof(struct sgentry)) |
427 | / sizeof(struct sgentry); | |
7c00ffa3 MH |
428 | host->can_queue = AAC_NUM_IO_FIB; |
429 | } else if (acbsize == 2048) { | |
430 | host->max_sectors = 512; | |
431 | dev->max_fib_size = 2048; | |
432 | host->sg_tablesize = 65; | |
433 | dev->sg_tablesize = 81; | |
434 | host->can_queue = 512 - AAC_NUM_MGT_FIB; | |
435 | } else if (acbsize == 4096) { | |
436 | host->max_sectors = 1024; | |
437 | dev->max_fib_size = 4096; | |
438 | host->sg_tablesize = 129; | |
439 | dev->sg_tablesize = 166; | |
440 | host->can_queue = 256 - AAC_NUM_MGT_FIB; | |
441 | } else if (acbsize == 8192) { | |
442 | host->max_sectors = 2048; | |
443 | dev->max_fib_size = 8192; | |
444 | host->sg_tablesize = 257; | |
445 | dev->sg_tablesize = 337; | |
446 | host->can_queue = 128 - AAC_NUM_MGT_FIB; | |
447 | } else if (acbsize > 0) { | |
448 | printk("Illegal acbsize=%d ignored\n", acbsize); | |
449 | } | |
450 | } | |
451 | { | |
452 | ||
453 | if (numacb > 0) { | |
454 | if (numacb < host->can_queue) | |
455 | host->can_queue = numacb; | |
456 | else | |
457 | printk("numacb=%d ignored\n", numacb); | |
458 | } | |
459 | } | |
460 | ||
2b4df6ea MR |
461 | if (host->can_queue > AAC_NUM_IO_FIB) |
462 | host->can_queue = AAC_NUM_IO_FIB; | |
463 | ||
1da177e4 LT |
464 | /* |
465 | * Ok now init the communication subsystem | |
466 | */ | |
467 | ||
4dbc22d7 | 468 | dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL); |
1da177e4 LT |
469 | if (dev->queues == NULL) { |
470 | printk(KERN_ERR "Error could not allocate comm region.\n"); | |
471 | return NULL; | |
472 | } | |
1da177e4 LT |
473 | |
474 | if (aac_comm_init(dev)<0){ | |
475 | kfree(dev->queues); | |
476 | return NULL; | |
477 | } | |
478 | /* | |
479 | * Initialize the list of fibs | |
480 | */ | |
bfb35aa8 | 481 | if (aac_fib_setup(dev) < 0) { |
1da177e4 LT |
482 | kfree(dev->queues); |
483 | return NULL; | |
484 | } | |
485 | ||
486 | INIT_LIST_HEAD(&dev->fib_list); | |
11604612 | 487 | INIT_LIST_HEAD(&dev->sync_fib_list); |
1da177e4 LT |
488 | |
489 | return dev; | |
490 | } | |
491 | ||
492 |