Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Adaptec AAC series RAID controller driver |
| 3 | * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> |
| 4 | * |
| 5 | * based on the old aacraid driver that is.. |
| 6 | * Adaptec aacraid device driver for Linux. |
| 7 | * |
| 8 | * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) |
| 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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 41 | #include <scsi/scsi_host.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <asm/semaphore.h> |
| 43 | |
| 44 | #include "aacraid.h" |
| 45 | |
Mark Haverkamp | bed30de | 2005-08-03 15:38:51 -0700 | [diff] [blame] | 46 | struct aac_common aac_config = { |
| 47 | .irq_mod = 1 |
| 48 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 54 | const unsigned long fibsize = 4096; |
| 55 | const unsigned long printfbufsiz = 256; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | struct aac_init *init; |
| 57 | dma_addr_t phys; |
| 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); |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 79 | if (dev->max_fib_size != sizeof(struct hw_fib)) |
| 80 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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)); |
Salyzyn, Mark | 12e9b5f | 2006-06-26 08:37:39 -0400 | [diff] [blame] | 94 | init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 96 | init->InitFlags = 0; |
Mark Haverkamp | 2871332 | 2007-01-23 14:59:20 -0800 | [diff] [blame] | 97 | if (dev->comm_interface == AAC_COMM_MESSAGE) { |
Mark Haverkamp | 8e0c5eb | 2005-10-24 10:52:22 -0700 | [diff] [blame] | 98 | init->InitFlags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); |
| 99 | dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n")); |
| 100 | } |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 101 | init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); |
| 102 | init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); |
| 103 | init->MaxFibSize = cpu_to_le32(dev->max_fib_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
| 105 | /* |
| 106 | * Increment the base address by the amount already used |
| 107 | */ |
| 108 | base = base + fibsize + sizeof(struct aac_init); |
| 109 | phys = (dma_addr_t)((ulong)phys + fibsize + sizeof(struct aac_init)); |
| 110 | /* |
| 111 | * Align the beginning of Headers to commalign |
| 112 | */ |
| 113 | align = (commalign - ((unsigned long)(base) & (commalign - 1))); |
| 114 | base = base + align; |
| 115 | phys = phys + align; |
| 116 | /* |
| 117 | * Fill in addresses of the Comm Area Headers and Queues |
| 118 | */ |
| 119 | *commaddr = base; |
| 120 | init->CommHeaderAddress = cpu_to_le32((u32)phys); |
| 121 | /* |
| 122 | * Increment the base address by the size of the CommArea |
| 123 | */ |
| 124 | base = base + commsize; |
| 125 | phys = phys + commsize; |
| 126 | /* |
| 127 | * Place the Printf buffer area after the Fast I/O comm area. |
| 128 | */ |
| 129 | dev->printfbuf = (void *)base; |
| 130 | init->printfbuf = cpu_to_le32(phys); |
| 131 | init->printfbufsiz = cpu_to_le32(printfbufsiz); |
| 132 | memset(base, 0, printfbufsiz); |
| 133 | return 1; |
| 134 | } |
| 135 | |
| 136 | static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize) |
| 137 | { |
| 138 | q->numpending = 0; |
| 139 | q->dev = dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | init_waitqueue_head(&q->cmdready); |
| 141 | INIT_LIST_HEAD(&q->cmdq); |
| 142 | init_waitqueue_head(&q->qfull); |
| 143 | spin_lock_init(&q->lockdata); |
| 144 | q->lock = &q->lockdata; |
Mark Haverkamp | 56b5871 | 2005-04-27 06:05:51 -0700 | [diff] [blame] | 145 | q->headers.producer = (__le32 *)mem; |
| 146 | q->headers.consumer = (__le32 *)(mem+1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | *(q->headers.producer) = cpu_to_le32(qsize); |
| 148 | *(q->headers.consumer) = cpu_to_le32(qsize); |
| 149 | q->entries = qsize; |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * aac_send_shutdown - shutdown an adapter |
| 154 | * @dev: Adapter to shutdown |
| 155 | * |
| 156 | * This routine will send a VM_CloseAll (shutdown) request to the adapter. |
| 157 | */ |
| 158 | |
| 159 | int aac_send_shutdown(struct aac_dev * dev) |
| 160 | { |
| 161 | struct fib * fibctx; |
| 162 | struct aac_close *cmd; |
| 163 | int status; |
| 164 | |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 165 | fibctx = aac_fib_alloc(dev); |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 166 | if (!fibctx) |
| 167 | return -ENOMEM; |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 168 | aac_fib_init(fibctx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | |
| 170 | cmd = (struct aac_close *) fib_data(fibctx); |
| 171 | |
| 172 | cmd->command = cpu_to_le32(VM_CloseAll); |
| 173 | cmd->cid = cpu_to_le32(0xffffffff); |
| 174 | |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 175 | status = aac_fib_send(ContainerCommand, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | fibctx, |
| 177 | sizeof(struct aac_close), |
| 178 | FsaNormal, |
Mark Haverkamp | 9203344 | 2005-09-20 12:56:50 -0700 | [diff] [blame] | 179 | -2 /* Timeout silently */, 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | NULL, NULL); |
| 181 | |
Mark Haverkamp | 90ee346 | 2006-08-03 08:03:07 -0700 | [diff] [blame] | 182 | if (status >= 0) |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 183 | aac_fib_complete(fibctx); |
| 184 | aac_fib_free(fibctx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | return status; |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * aac_comm_init - Initialise FSA data structures |
| 190 | * @dev: Adapter to initialise |
| 191 | * |
| 192 | * Initializes the data structures that are required for the FSA commuication |
| 193 | * interface to operate. |
| 194 | * Returns |
| 195 | * 1 - if we were able to init the commuication interface. |
| 196 | * 0 - If there were errors initing. This is a fatal error. |
| 197 | */ |
| 198 | |
Adrian Bunk | 4833869 | 2005-04-25 19:45:58 -0700 | [diff] [blame] | 199 | static int aac_comm_init(struct aac_dev * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | { |
| 201 | unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2; |
| 202 | unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES; |
| 203 | u32 *headers; |
| 204 | struct aac_entry * queues; |
| 205 | unsigned long size; |
| 206 | struct aac_queue_block * comm = dev->queues; |
| 207 | /* |
| 208 | * Now allocate and initialize the zone structures used as our |
| 209 | * pool of FIB context records. The size of the zone is based |
| 210 | * on the system memory size. We also initialize the mutex used |
| 211 | * to protect the zone. |
| 212 | */ |
| 213 | spin_lock_init(&dev->fib_lock); |
| 214 | |
| 215 | /* |
| 216 | * Allocate the physically contigous space for the commuication |
| 217 | * queue headers. |
| 218 | */ |
| 219 | |
| 220 | size = hdrsize + queuesize; |
| 221 | |
| 222 | if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT)) |
| 223 | return -ENOMEM; |
| 224 | |
| 225 | queues = (struct aac_entry *)(((ulong)headers) + hdrsize); |
| 226 | |
| 227 | /* Adapter to Host normal priority Command queue */ |
| 228 | comm->queue[HostNormCmdQueue].base = queues; |
| 229 | aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES); |
| 230 | queues += HOST_NORM_CMD_ENTRIES; |
| 231 | headers += 2; |
| 232 | |
| 233 | /* Adapter to Host high priority command queue */ |
| 234 | comm->queue[HostHighCmdQueue].base = queues; |
| 235 | aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES); |
| 236 | |
| 237 | queues += HOST_HIGH_CMD_ENTRIES; |
| 238 | headers +=2; |
| 239 | |
| 240 | /* Host to adapter normal priority command queue */ |
| 241 | comm->queue[AdapNormCmdQueue].base = queues; |
| 242 | aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES); |
| 243 | |
| 244 | queues += ADAP_NORM_CMD_ENTRIES; |
| 245 | headers += 2; |
| 246 | |
| 247 | /* host to adapter high priority command queue */ |
| 248 | comm->queue[AdapHighCmdQueue].base = queues; |
| 249 | aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES); |
| 250 | |
| 251 | queues += ADAP_HIGH_CMD_ENTRIES; |
| 252 | headers += 2; |
| 253 | |
| 254 | /* adapter to host normal priority response queue */ |
| 255 | comm->queue[HostNormRespQueue].base = queues; |
| 256 | aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES); |
| 257 | queues += HOST_NORM_RESP_ENTRIES; |
| 258 | headers += 2; |
| 259 | |
| 260 | /* adapter to host high priority response queue */ |
| 261 | comm->queue[HostHighRespQueue].base = queues; |
| 262 | aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES); |
| 263 | |
| 264 | queues += HOST_HIGH_RESP_ENTRIES; |
| 265 | headers += 2; |
| 266 | |
| 267 | /* host to adapter normal priority response queue */ |
| 268 | comm->queue[AdapNormRespQueue].base = queues; |
| 269 | aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES); |
| 270 | |
| 271 | queues += ADAP_NORM_RESP_ENTRIES; |
| 272 | headers += 2; |
| 273 | |
| 274 | /* host to adapter high priority response queue */ |
| 275 | comm->queue[AdapHighRespQueue].base = queues; |
| 276 | aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES); |
| 277 | |
| 278 | comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock; |
| 279 | comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock; |
| 280 | comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock; |
| 281 | comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock; |
| 282 | |
| 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | struct aac_dev *aac_init_adapter(struct aac_dev *dev) |
| 287 | { |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 288 | u32 status[5]; |
| 289 | struct Scsi_Host * host = dev->scsi_host_ptr; |
| 290 | |
| 291 | /* |
| 292 | * Check the preferred comm settings, defaults from template. |
| 293 | */ |
| 294 | dev->max_fib_size = sizeof(struct hw_fib); |
| 295 | dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size |
| 296 | - sizeof(struct aac_fibhdr) |
Mark Haverkamp | 63a70ee | 2005-09-20 12:57:04 -0700 | [diff] [blame] | 297 | - sizeof(struct aac_write) + sizeof(struct sgentry)) |
| 298 | / sizeof(struct sgentry); |
Mark Haverkamp | 2871332 | 2007-01-23 14:59:20 -0800 | [diff] [blame] | 299 | dev->comm_interface = AAC_COMM_PRODUCER; |
Mark Haverkamp | 7a8cf29 | 2005-09-22 09:15:24 -0700 | [diff] [blame] | 300 | dev->raw_io_64 = 0; |
| 301 | if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, |
| 302 | 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) && |
| 303 | (status[0] == 0x00000001)) { |
| 304 | if (status[1] & AAC_OPT_NEW_COMM_64) |
| 305 | dev->raw_io_64 = 1; |
Mark Haverkamp | 2871332 | 2007-01-23 14:59:20 -0800 | [diff] [blame] | 306 | if (dev->a_ops.adapter_comm && |
| 307 | (status[1] & AAC_OPT_NEW_COMM)) |
| 308 | dev->comm_interface = AAC_COMM_MESSAGE; |
| 309 | if ((dev->comm_interface == AAC_COMM_MESSAGE) && |
| 310 | (status[2] > dev->base_size)) { |
Mark Haverkamp | 76a7f8f | 2006-09-19 09:00:02 -0700 | [diff] [blame] | 311 | aac_adapter_ioremap(dev, 0); |
Mark Haverkamp | 8e0c5eb | 2005-10-24 10:52:22 -0700 | [diff] [blame] | 312 | dev->base_size = status[2]; |
Mark Haverkamp | 76a7f8f | 2006-09-19 09:00:02 -0700 | [diff] [blame] | 313 | if (aac_adapter_ioremap(dev, status[2])) { |
Mark Haverkamp | 8e0c5eb | 2005-10-24 10:52:22 -0700 | [diff] [blame] | 314 | /* remap failed, go back ... */ |
Mark Haverkamp | 2871332 | 2007-01-23 14:59:20 -0800 | [diff] [blame] | 315 | dev->comm_interface = AAC_COMM_PRODUCER; |
Mark Haverkamp | 76a7f8f | 2006-09-19 09:00:02 -0700 | [diff] [blame] | 316 | if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) { |
Mark Haverkamp | 8e0c5eb | 2005-10-24 10:52:22 -0700 | [diff] [blame] | 317 | printk(KERN_WARNING |
| 318 | "aacraid: unable to map adapter.\n"); |
| 319 | return NULL; |
| 320 | } |
| 321 | } |
| 322 | } |
Mark Haverkamp | 7a8cf29 | 2005-09-22 09:15:24 -0700 | [diff] [blame] | 323 | } |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 324 | if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, |
| 325 | 0, 0, 0, 0, 0, 0, |
| 326 | status+0, status+1, status+2, status+3, status+4)) |
| 327 | && (status[0] == 0x00000001)) { |
| 328 | /* |
| 329 | * status[1] >> 16 maximum command size in KB |
| 330 | * status[1] & 0xFFFF maximum FIB size |
| 331 | * status[2] >> 16 maximum SG elements to driver |
| 332 | * status[2] & 0xFFFF maximum SG elements from driver |
| 333 | * status[3] & 0xFFFF maximum number FIBs outstanding |
| 334 | */ |
| 335 | host->max_sectors = (status[1] >> 16) << 1; |
| 336 | dev->max_fib_size = status[1] & 0xFFFF; |
| 337 | host->sg_tablesize = status[2] >> 16; |
| 338 | dev->sg_tablesize = status[2] & 0xFFFF; |
| 339 | host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB; |
| 340 | /* |
| 341 | * NOTE: |
| 342 | * All these overrides are based on a fixed internal |
| 343 | * knowledge and understanding of existing adapters, |
| 344 | * acbsize should be set with caution. |
| 345 | */ |
| 346 | if (acbsize == 512) { |
| 347 | host->max_sectors = AAC_MAX_32BIT_SGBCOUNT; |
| 348 | dev->max_fib_size = 512; |
| 349 | dev->sg_tablesize = host->sg_tablesize |
| 350 | = (512 - sizeof(struct aac_fibhdr) |
Mark Haverkamp | 63a70ee | 2005-09-20 12:57:04 -0700 | [diff] [blame] | 351 | - sizeof(struct aac_write) + sizeof(struct sgentry)) |
| 352 | / sizeof(struct sgentry); |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 353 | host->can_queue = AAC_NUM_IO_FIB; |
| 354 | } else if (acbsize == 2048) { |
| 355 | host->max_sectors = 512; |
| 356 | dev->max_fib_size = 2048; |
| 357 | host->sg_tablesize = 65; |
| 358 | dev->sg_tablesize = 81; |
| 359 | host->can_queue = 512 - AAC_NUM_MGT_FIB; |
| 360 | } else if (acbsize == 4096) { |
| 361 | host->max_sectors = 1024; |
| 362 | dev->max_fib_size = 4096; |
| 363 | host->sg_tablesize = 129; |
| 364 | dev->sg_tablesize = 166; |
| 365 | host->can_queue = 256 - AAC_NUM_MGT_FIB; |
| 366 | } else if (acbsize == 8192) { |
| 367 | host->max_sectors = 2048; |
| 368 | dev->max_fib_size = 8192; |
| 369 | host->sg_tablesize = 257; |
| 370 | dev->sg_tablesize = 337; |
| 371 | host->can_queue = 128 - AAC_NUM_MGT_FIB; |
| 372 | } else if (acbsize > 0) { |
| 373 | printk("Illegal acbsize=%d ignored\n", acbsize); |
| 374 | } |
| 375 | } |
| 376 | { |
| 377 | |
| 378 | if (numacb > 0) { |
| 379 | if (numacb < host->can_queue) |
| 380 | host->can_queue = numacb; |
| 381 | else |
| 382 | printk("numacb=%d ignored\n", numacb); |
| 383 | } |
| 384 | } |
| 385 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | /* |
| 387 | * Ok now init the communication subsystem |
| 388 | */ |
| 389 | |
Robert P. J. Day | 5cbded5 | 2006-12-13 00:35:56 -0800 | [diff] [blame] | 390 | dev->queues = kmalloc(sizeof(struct aac_queue_block), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | if (dev->queues == NULL) { |
| 392 | printk(KERN_ERR "Error could not allocate comm region.\n"); |
| 393 | return NULL; |
| 394 | } |
| 395 | memset(dev->queues, 0, sizeof(struct aac_queue_block)); |
| 396 | |
| 397 | if (aac_comm_init(dev)<0){ |
| 398 | kfree(dev->queues); |
| 399 | return NULL; |
| 400 | } |
| 401 | /* |
| 402 | * Initialize the list of fibs |
| 403 | */ |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 404 | if (aac_fib_setup(dev) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | kfree(dev->queues); |
| 406 | return NULL; |
| 407 | } |
| 408 | |
| 409 | INIT_LIST_HEAD(&dev->fib_list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | |
| 411 | return dev; |
| 412 | } |
| 413 | |
| 414 | |