Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Adaptec AAC series RAID controller driver |
| 3 | * (c) Copyright 2001 Red Hat Inc. |
| 4 | * |
| 5 | * based on the old aacraid driver that is.. |
| 6 | * Adaptec aacraid device driver for Linux. |
| 7 | * |
| 8 | * Copyright (c) 2000-2010 Adaptec, Inc. |
| 9 | * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) |
| 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 | * src.c |
| 27 | * |
| 28 | * Abstract: Hardware Device Interface for PMC SRC based controllers |
| 29 | * |
| 30 | */ |
| 31 | |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/init.h> |
| 34 | #include <linux/types.h> |
| 35 | #include <linux/pci.h> |
| 36 | #include <linux/spinlock.h> |
| 37 | #include <linux/slab.h> |
| 38 | #include <linux/blkdev.h> |
| 39 | #include <linux/delay.h> |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 40 | #include <linux/completion.h> |
| 41 | #include <linux/time.h> |
| 42 | #include <linux/interrupt.h> |
| 43 | #include <scsi/scsi_host.h> |
| 44 | |
| 45 | #include "aacraid.h" |
| 46 | |
| 47 | static irqreturn_t aac_src_intr_message(int irq, void *dev_id) |
| 48 | { |
| 49 | struct aac_dev *dev = dev_id; |
| 50 | unsigned long bellbits, bellbits_shifted; |
| 51 | int our_interrupt = 0; |
| 52 | int isFastResponse; |
| 53 | u32 index, handle; |
| 54 | |
| 55 | bellbits = src_readl(dev, MUnit.ODR_R); |
| 56 | if (bellbits & PmDoorBellResponseSent) { |
| 57 | bellbits = PmDoorBellResponseSent; |
| 58 | /* handle async. status */ |
| 59 | our_interrupt = 1; |
| 60 | index = dev->host_rrq_idx; |
| 61 | if (dev->host_rrq[index] == 0) { |
| 62 | u32 old_index = index; |
| 63 | /* adjust index */ |
| 64 | do { |
| 65 | index++; |
| 66 | if (index == dev->scsi_host_ptr->can_queue + |
| 67 | AAC_NUM_MGT_FIB) |
| 68 | index = 0; |
| 69 | if (dev->host_rrq[index] != 0) |
| 70 | break; |
| 71 | } while (index != old_index); |
| 72 | dev->host_rrq_idx = index; |
| 73 | } |
| 74 | for (;;) { |
| 75 | isFastResponse = 0; |
| 76 | /* remove toggle bit (31) */ |
| 77 | handle = (dev->host_rrq[index] & 0x7fffffff); |
| 78 | /* check fast response bit (30) */ |
| 79 | if (handle & 0x40000000) |
| 80 | isFastResponse = 1; |
| 81 | handle &= 0x0000ffff; |
| 82 | if (handle == 0) |
| 83 | break; |
| 84 | |
| 85 | aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL); |
| 86 | |
| 87 | dev->host_rrq[index++] = 0; |
| 88 | if (index == dev->scsi_host_ptr->can_queue + |
| 89 | AAC_NUM_MGT_FIB) |
| 90 | index = 0; |
| 91 | dev->host_rrq_idx = index; |
| 92 | } |
| 93 | } else { |
| 94 | bellbits_shifted = (bellbits >> SRC_ODR_SHIFT); |
| 95 | if (bellbits_shifted & DoorBellAifPending) { |
| 96 | our_interrupt = 1; |
| 97 | /* handle AIF */ |
| 98 | aac_intr_normal(dev, 0, 2, 0, NULL); |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | if (our_interrupt) { |
| 103 | src_writel(dev, MUnit.ODR_C, bellbits); |
| 104 | return IRQ_HANDLED; |
| 105 | } |
| 106 | return IRQ_NONE; |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * aac_src_disable_interrupt - Disable interrupts |
| 111 | * @dev: Adapter |
| 112 | */ |
| 113 | |
| 114 | static void aac_src_disable_interrupt(struct aac_dev *dev) |
| 115 | { |
| 116 | src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * aac_src_enable_interrupt_message - Enable interrupts |
| 121 | * @dev: Adapter |
| 122 | */ |
| 123 | |
| 124 | static void aac_src_enable_interrupt_message(struct aac_dev *dev) |
| 125 | { |
| 126 | src_writel(dev, MUnit.OIMR, dev->OIMR = 0xfffffff8); |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * src_sync_cmd - send a command and wait |
| 131 | * @dev: Adapter |
| 132 | * @command: Command to execute |
| 133 | * @p1: first parameter |
| 134 | * @ret: adapter status |
| 135 | * |
| 136 | * This routine will send a synchronous command to the adapter and wait |
| 137 | * for its completion. |
| 138 | */ |
| 139 | |
| 140 | static int src_sync_cmd(struct aac_dev *dev, u32 command, |
| 141 | u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, |
| 142 | u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4) |
| 143 | { |
| 144 | unsigned long start; |
| 145 | int ok; |
| 146 | |
| 147 | /* |
| 148 | * Write the command into Mailbox 0 |
| 149 | */ |
| 150 | writel(command, &dev->IndexRegs->Mailbox[0]); |
| 151 | /* |
| 152 | * Write the parameters into Mailboxes 1 - 6 |
| 153 | */ |
| 154 | writel(p1, &dev->IndexRegs->Mailbox[1]); |
| 155 | writel(p2, &dev->IndexRegs->Mailbox[2]); |
| 156 | writel(p3, &dev->IndexRegs->Mailbox[3]); |
| 157 | writel(p4, &dev->IndexRegs->Mailbox[4]); |
| 158 | |
| 159 | /* |
| 160 | * Clear the synch command doorbell to start on a clean slate. |
| 161 | */ |
| 162 | src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); |
| 163 | |
| 164 | /* |
| 165 | * Disable doorbell interrupts |
| 166 | */ |
| 167 | src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); |
| 168 | |
| 169 | /* |
| 170 | * Force the completion of the mask register write before issuing |
| 171 | * the interrupt. |
| 172 | */ |
| 173 | src_readl(dev, MUnit.OIMR); |
| 174 | |
| 175 | /* |
| 176 | * Signal that there is a new synch command |
| 177 | */ |
| 178 | src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT); |
| 179 | |
| 180 | ok = 0; |
| 181 | start = jiffies; |
| 182 | |
| 183 | /* |
| 184 | * Wait up to 30 seconds |
| 185 | */ |
| 186 | while (time_before(jiffies, start+30*HZ)) { |
| 187 | /* Delay 5 microseconds to let Mon960 get info. */ |
| 188 | udelay(5); |
| 189 | |
| 190 | /* Mon960 will set doorbell0 bit |
| 191 | * when it has completed the command |
| 192 | */ |
| 193 | if ((src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT) & OUTBOUNDDOORBELL_0) { |
| 194 | /* Clear the doorbell */ |
| 195 | src_writel(dev, |
| 196 | MUnit.ODR_C, |
| 197 | OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); |
| 198 | ok = 1; |
| 199 | break; |
| 200 | } |
| 201 | |
| 202 | /* Yield the processor in case we are slow */ |
| 203 | msleep(1); |
| 204 | } |
| 205 | if (unlikely(ok != 1)) { |
| 206 | /* Restore interrupt mask even though we timed out */ |
| 207 | aac_adapter_enable_int(dev); |
| 208 | return -ETIMEDOUT; |
| 209 | } |
| 210 | |
| 211 | /* Pull the synch status from Mailbox 0 */ |
| 212 | if (status) |
| 213 | *status = readl(&dev->IndexRegs->Mailbox[0]); |
| 214 | if (r1) |
| 215 | *r1 = readl(&dev->IndexRegs->Mailbox[1]); |
| 216 | if (r2) |
| 217 | *r2 = readl(&dev->IndexRegs->Mailbox[2]); |
| 218 | if (r3) |
| 219 | *r3 = readl(&dev->IndexRegs->Mailbox[3]); |
| 220 | if (r4) |
| 221 | *r4 = readl(&dev->IndexRegs->Mailbox[4]); |
| 222 | |
| 223 | /* Clear the synch command doorbell */ |
| 224 | src_writel(dev, MUnit.ODR_C, OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); |
| 225 | |
| 226 | /* Restore interrupt mask */ |
| 227 | aac_adapter_enable_int(dev); |
| 228 | return 0; |
| 229 | |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * aac_src_interrupt_adapter - interrupt adapter |
| 234 | * @dev: Adapter |
| 235 | * |
| 236 | * Send an interrupt to the i960 and breakpoint it. |
| 237 | */ |
| 238 | |
| 239 | static void aac_src_interrupt_adapter(struct aac_dev *dev) |
| 240 | { |
| 241 | src_sync_cmd(dev, BREAKPOINT_REQUEST, |
| 242 | 0, 0, 0, 0, 0, 0, |
| 243 | NULL, NULL, NULL, NULL, NULL); |
| 244 | } |
| 245 | |
| 246 | /** |
| 247 | * aac_src_notify_adapter - send an event to the adapter |
| 248 | * @dev: Adapter |
| 249 | * @event: Event to send |
| 250 | * |
| 251 | * Notify the i960 that something it probably cares about has |
| 252 | * happened. |
| 253 | */ |
| 254 | |
| 255 | static void aac_src_notify_adapter(struct aac_dev *dev, u32 event) |
| 256 | { |
| 257 | switch (event) { |
| 258 | |
| 259 | case AdapNormCmdQue: |
| 260 | src_writel(dev, MUnit.ODR_C, |
| 261 | INBOUNDDOORBELL_1 << SRC_ODR_SHIFT); |
| 262 | break; |
| 263 | case HostNormRespNotFull: |
| 264 | src_writel(dev, MUnit.ODR_C, |
| 265 | INBOUNDDOORBELL_4 << SRC_ODR_SHIFT); |
| 266 | break; |
| 267 | case AdapNormRespQue: |
| 268 | src_writel(dev, MUnit.ODR_C, |
| 269 | INBOUNDDOORBELL_2 << SRC_ODR_SHIFT); |
| 270 | break; |
| 271 | case HostNormCmdNotFull: |
| 272 | src_writel(dev, MUnit.ODR_C, |
| 273 | INBOUNDDOORBELL_3 << SRC_ODR_SHIFT); |
| 274 | break; |
| 275 | case FastIo: |
| 276 | src_writel(dev, MUnit.ODR_C, |
| 277 | INBOUNDDOORBELL_6 << SRC_ODR_SHIFT); |
| 278 | break; |
| 279 | case AdapPrintfDone: |
| 280 | src_writel(dev, MUnit.ODR_C, |
| 281 | INBOUNDDOORBELL_5 << SRC_ODR_SHIFT); |
| 282 | break; |
| 283 | default: |
| 284 | BUG(); |
| 285 | break; |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * aac_src_start_adapter - activate adapter |
| 291 | * @dev: Adapter |
| 292 | * |
| 293 | * Start up processing on an i960 based AAC adapter |
| 294 | */ |
| 295 | |
| 296 | static void aac_src_start_adapter(struct aac_dev *dev) |
| 297 | { |
| 298 | struct aac_init *init; |
| 299 | |
| 300 | init = dev->init; |
| 301 | init->HostElapsedSeconds = cpu_to_le32(get_seconds()); |
| 302 | |
| 303 | /* We can only use a 32 bit address here */ |
| 304 | src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa, |
| 305 | 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); |
| 306 | } |
| 307 | |
| 308 | /** |
| 309 | * aac_src_check_health |
| 310 | * @dev: device to check if healthy |
| 311 | * |
| 312 | * Will attempt to determine if the specified adapter is alive and |
| 313 | * capable of handling requests, returning 0 if alive. |
| 314 | */ |
| 315 | static int aac_src_check_health(struct aac_dev *dev) |
| 316 | { |
| 317 | u32 status = src_readl(dev, MUnit.OMR); |
| 318 | |
| 319 | /* |
| 320 | * Check to see if the board failed any self tests. |
| 321 | */ |
| 322 | if (unlikely(status & SELF_TEST_FAILED)) |
| 323 | return -1; |
| 324 | |
| 325 | /* |
| 326 | * Check to see if the board panic'd. |
| 327 | */ |
| 328 | if (unlikely(status & KERNEL_PANIC)) |
| 329 | return (status >> 16) & 0xFF; |
| 330 | /* |
| 331 | * Wait for the adapter to be up and running. |
| 332 | */ |
| 333 | if (unlikely(!(status & KERNEL_UP_AND_RUNNING))) |
| 334 | return -3; |
| 335 | /* |
| 336 | * Everything is OK |
| 337 | */ |
| 338 | return 0; |
| 339 | } |
| 340 | |
| 341 | /** |
| 342 | * aac_src_deliver_message |
| 343 | * @fib: fib to issue |
| 344 | * |
| 345 | * Will send a fib, returning 0 if successful. |
| 346 | */ |
| 347 | static int aac_src_deliver_message(struct fib *fib) |
| 348 | { |
| 349 | struct aac_dev *dev = fib->dev; |
| 350 | struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue]; |
| 351 | unsigned long qflags; |
| 352 | u32 fibsize; |
| 353 | u64 address; |
| 354 | struct aac_fib_xporthdr *pFibX; |
| 355 | |
| 356 | spin_lock_irqsave(q->lock, qflags); |
| 357 | q->numpending++; |
| 358 | spin_unlock_irqrestore(q->lock, qflags); |
| 359 | |
| 360 | /* Calculate the amount to the fibsize bits */ |
| 361 | fibsize = (sizeof(struct aac_fib_xporthdr) + |
| 362 | fib->hw_fib_va->header.Size + 127) / 128 - 1; |
| 363 | if (fibsize > (ALIGN32 - 1)) |
| 364 | fibsize = ALIGN32 - 1; |
| 365 | |
| 366 | /* Fill XPORT header */ |
| 367 | pFibX = (struct aac_fib_xporthdr *) |
| 368 | ((unsigned char *)fib->hw_fib_va - |
| 369 | sizeof(struct aac_fib_xporthdr)); |
| 370 | pFibX->Handle = fib->hw_fib_va->header.SenderData + 1; |
| 371 | pFibX->HostAddress = fib->hw_fib_pa; |
| 372 | pFibX->Size = fib->hw_fib_va->header.Size; |
| 373 | address = fib->hw_fib_pa - (u64)sizeof(struct aac_fib_xporthdr); |
| 374 | |
| 375 | src_writel(dev, MUnit.IQ_H, (u32)(address >> 32)); |
| 376 | src_writel(dev, MUnit.IQ_L, (u32)(address & 0xffffffff) + fibsize); |
| 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | /** |
| 381 | * aac_src_ioremap |
| 382 | * @size: mapping resize request |
| 383 | * |
| 384 | */ |
| 385 | static int aac_src_ioremap(struct aac_dev *dev, u32 size) |
| 386 | { |
| 387 | if (!size) { |
| 388 | iounmap(dev->regs.src.bar0); |
| 389 | dev->regs.src.bar0 = NULL; |
| 390 | iounmap(dev->base); |
| 391 | dev->base = NULL; |
| 392 | return 0; |
| 393 | } |
| 394 | dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2), |
| 395 | AAC_MIN_SRC_BAR1_SIZE); |
| 396 | dev->base = NULL; |
| 397 | if (dev->regs.src.bar1 == NULL) |
| 398 | return -1; |
| 399 | dev->base = dev->regs.src.bar0 = ioremap(dev->scsi_host_ptr->base, |
| 400 | size); |
| 401 | if (dev->base == NULL) { |
| 402 | iounmap(dev->regs.src.bar1); |
| 403 | dev->regs.src.bar1 = NULL; |
| 404 | return -1; |
| 405 | } |
| 406 | dev->IndexRegs = &((struct src_registers __iomem *) |
| 407 | dev->base)->IndexRegs; |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | static int aac_src_restart_adapter(struct aac_dev *dev, int bled) |
| 412 | { |
| 413 | u32 var, reset_mask; |
| 414 | |
| 415 | if (bled >= 0) { |
| 416 | if (bled) |
| 417 | printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n", |
| 418 | dev->name, dev->id, bled); |
| 419 | bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS, |
| 420 | 0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL); |
| 421 | if (bled || (var != 0x00000001)) |
| 422 | bled = -EINVAL; |
| 423 | if (dev->supplement_adapter_info.SupportedOptions2 & |
| 424 | AAC_OPTION_DOORBELL_RESET) { |
| 425 | src_writel(dev, MUnit.IDR, reset_mask); |
| 426 | msleep(5000); /* Delay 5 seconds */ |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC) |
| 431 | return -ENODEV; |
| 432 | |
| 433 | if (startup_timeout < 300) |
| 434 | startup_timeout = 300; |
| 435 | |
| 436 | return 0; |
| 437 | } |
| 438 | |
| 439 | /** |
| 440 | * aac_src_select_comm - Select communications method |
| 441 | * @dev: Adapter |
| 442 | * @comm: communications method |
| 443 | */ |
| 444 | int aac_src_select_comm(struct aac_dev *dev, int comm) |
| 445 | { |
| 446 | switch (comm) { |
| 447 | case AAC_COMM_MESSAGE: |
| 448 | dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; |
| 449 | dev->a_ops.adapter_intr = aac_src_intr_message; |
| 450 | dev->a_ops.adapter_deliver = aac_src_deliver_message; |
| 451 | break; |
| 452 | default: |
| 453 | return 1; |
| 454 | } |
| 455 | return 0; |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * aac_src_init - initialize an Cardinal Frey Bar card |
| 460 | * @dev: device to configure |
| 461 | * |
| 462 | */ |
| 463 | |
| 464 | int aac_src_init(struct aac_dev *dev) |
| 465 | { |
| 466 | unsigned long start; |
| 467 | unsigned long status; |
| 468 | int restart = 0; |
| 469 | int instance = dev->id; |
| 470 | const char *name = dev->name; |
| 471 | |
| 472 | dev->a_ops.adapter_ioremap = aac_src_ioremap; |
| 473 | dev->a_ops.adapter_comm = aac_src_select_comm; |
| 474 | |
| 475 | dev->base_size = AAC_MIN_SRC_BAR0_SIZE; |
| 476 | if (aac_adapter_ioremap(dev, dev->base_size)) { |
| 477 | printk(KERN_WARNING "%s: unable to map adapter.\n", name); |
| 478 | goto error_iounmap; |
| 479 | } |
| 480 | |
| 481 | /* Failure to reset here is an option ... */ |
| 482 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 483 | dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; |
| 484 | if ((aac_reset_devices || reset_devices) && |
| 485 | !aac_src_restart_adapter(dev, 0)) |
| 486 | ++restart; |
| 487 | /* |
| 488 | * Check to see if the board panic'd while booting. |
| 489 | */ |
| 490 | status = src_readl(dev, MUnit.OMR); |
| 491 | if (status & KERNEL_PANIC) { |
| 492 | if (aac_src_restart_adapter(dev, aac_src_check_health(dev))) |
| 493 | goto error_iounmap; |
| 494 | ++restart; |
| 495 | } |
| 496 | /* |
| 497 | * Check to see if the board failed any self tests. |
| 498 | */ |
| 499 | status = src_readl(dev, MUnit.OMR); |
| 500 | if (status & SELF_TEST_FAILED) { |
| 501 | printk(KERN_ERR "%s%d: adapter self-test failed.\n", |
| 502 | dev->name, instance); |
| 503 | goto error_iounmap; |
| 504 | } |
| 505 | /* |
| 506 | * Check to see if the monitor panic'd while booting. |
| 507 | */ |
| 508 | if (status & MONITOR_PANIC) { |
| 509 | printk(KERN_ERR "%s%d: adapter monitor panic.\n", |
| 510 | dev->name, instance); |
| 511 | goto error_iounmap; |
| 512 | } |
| 513 | start = jiffies; |
| 514 | /* |
| 515 | * Wait for the adapter to be up and running. Wait up to 3 minutes |
| 516 | */ |
| 517 | while (!((status = src_readl(dev, MUnit.OMR)) & |
| 518 | KERNEL_UP_AND_RUNNING)) { |
| 519 | if ((restart && |
| 520 | (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || |
| 521 | time_after(jiffies, start+HZ*startup_timeout)) { |
| 522 | printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", |
| 523 | dev->name, instance, status); |
| 524 | goto error_iounmap; |
| 525 | } |
| 526 | if (!restart && |
| 527 | ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || |
| 528 | time_after(jiffies, start + HZ * |
| 529 | ((startup_timeout > 60) |
| 530 | ? (startup_timeout - 60) |
| 531 | : (startup_timeout / 2))))) { |
| 532 | if (likely(!aac_src_restart_adapter(dev, |
| 533 | aac_src_check_health(dev)))) |
| 534 | start = jiffies; |
| 535 | ++restart; |
| 536 | } |
| 537 | msleep(1); |
| 538 | } |
| 539 | if (restart && aac_commit) |
| 540 | aac_commit = 1; |
| 541 | /* |
| 542 | * Fill in the common function dispatch table. |
| 543 | */ |
| 544 | dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; |
| 545 | dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; |
| 546 | dev->a_ops.adapter_notify = aac_src_notify_adapter; |
| 547 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 548 | dev->a_ops.adapter_check_health = aac_src_check_health; |
| 549 | dev->a_ops.adapter_restart = aac_src_restart_adapter; |
| 550 | |
| 551 | /* |
| 552 | * First clear out all interrupts. Then enable the one's that we |
| 553 | * can handle. |
| 554 | */ |
| 555 | aac_adapter_comm(dev, AAC_COMM_MESSAGE); |
| 556 | aac_adapter_disable_int(dev); |
| 557 | src_writel(dev, MUnit.ODR_C, 0xffffffff); |
| 558 | aac_adapter_enable_int(dev); |
| 559 | |
| 560 | if (aac_init_adapter(dev) == NULL) |
| 561 | goto error_iounmap; |
| 562 | if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1) |
| 563 | goto error_iounmap; |
| 564 | |
| 565 | dev->msi = aac_msi && !pci_enable_msi(dev->pdev); |
| 566 | |
| 567 | if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, |
| 568 | IRQF_SHARED|IRQF_DISABLED, "aacraid", dev) < 0) { |
| 569 | |
| 570 | if (dev->msi) |
| 571 | pci_disable_msi(dev->pdev); |
| 572 | |
| 573 | printk(KERN_ERR "%s%d: Interrupt unavailable.\n", |
| 574 | name, instance); |
| 575 | goto error_iounmap; |
| 576 | } |
| 577 | dev->dbg_base = pci_resource_start(dev->pdev, 2); |
| 578 | dev->dbg_base_mapped = dev->regs.src.bar1; |
| 579 | dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE; |
| 580 | |
| 581 | aac_adapter_enable_int(dev); |
| 582 | /* |
| 583 | * Tell the adapter that all is configured, and it can |
| 584 | * start accepting requests |
| 585 | */ |
| 586 | aac_src_start_adapter(dev); |
| 587 | |
| 588 | return 0; |
| 589 | |
| 590 | error_iounmap: |
| 591 | |
| 592 | return -1; |
| 593 | } |