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 | |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 47 | static int aac_src_get_sync_status(struct aac_dev *dev); |
| 48 | |
kbuild test robot | 305974f | 2015-04-10 16:53:38 +0800 | [diff] [blame] | 49 | static irqreturn_t aac_src_intr_message(int irq, void *dev_id) |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 50 | { |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 51 | struct aac_msix_ctx *ctx; |
| 52 | struct aac_dev *dev; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 53 | unsigned long bellbits, bellbits_shifted; |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 54 | int vector_no; |
| 55 | int isFastResponse, mode; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 56 | u32 index, handle; |
| 57 | |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 58 | ctx = (struct aac_msix_ctx *)dev_id; |
| 59 | dev = ctx->dev; |
| 60 | vector_no = ctx->vector_no; |
| 61 | |
| 62 | if (dev->msi_enabled) { |
| 63 | mode = AAC_INT_MODE_MSI; |
| 64 | if (vector_no == 0) { |
| 65 | bellbits = src_readl(dev, MUnit.ODR_MSI); |
| 66 | if (bellbits & 0x40000) |
| 67 | mode |= AAC_INT_MODE_AIF; |
| 68 | if (bellbits & 0x1000) |
| 69 | mode |= AAC_INT_MODE_SYNC; |
| 70 | } |
| 71 | } else { |
| 72 | mode = AAC_INT_MODE_INTX; |
| 73 | bellbits = src_readl(dev, MUnit.ODR_R); |
| 74 | if (bellbits & PmDoorBellResponseSent) { |
| 75 | bellbits = PmDoorBellResponseSent; |
| 76 | src_writel(dev, MUnit.ODR_C, bellbits); |
| 77 | src_readl(dev, MUnit.ODR_C); |
| 78 | } else { |
| 79 | bellbits_shifted = (bellbits >> SRC_ODR_SHIFT); |
| 80 | src_writel(dev, MUnit.ODR_C, bellbits); |
| 81 | src_readl(dev, MUnit.ODR_C); |
| 82 | |
| 83 | if (bellbits_shifted & DoorBellAifPending) |
| 84 | mode |= AAC_INT_MODE_AIF; |
| 85 | else if (bellbits_shifted & OUTBOUNDDOORBELL_0) |
| 86 | mode |= AAC_INT_MODE_SYNC; |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | if (mode & AAC_INT_MODE_SYNC) { |
| 91 | unsigned long sflags; |
| 92 | struct list_head *entry; |
| 93 | int send_it = 0; |
| 94 | extern int aac_sync_mode; |
| 95 | |
| 96 | if (!aac_sync_mode && !dev->msi_enabled) { |
| 97 | src_writel(dev, MUnit.ODR_C, bellbits); |
| 98 | src_readl(dev, MUnit.ODR_C); |
| 99 | } |
| 100 | |
| 101 | if (dev->sync_fib) { |
| 102 | if (dev->sync_fib->callback) |
| 103 | dev->sync_fib->callback(dev->sync_fib->callback_data, |
| 104 | dev->sync_fib); |
| 105 | spin_lock_irqsave(&dev->sync_fib->event_lock, sflags); |
| 106 | if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) { |
| 107 | dev->management_fib_count--; |
| 108 | up(&dev->sync_fib->event_wait); |
| 109 | } |
| 110 | spin_unlock_irqrestore(&dev->sync_fib->event_lock, |
| 111 | sflags); |
| 112 | spin_lock_irqsave(&dev->sync_lock, sflags); |
| 113 | if (!list_empty(&dev->sync_fib_list)) { |
| 114 | entry = dev->sync_fib_list.next; |
| 115 | dev->sync_fib = list_entry(entry, |
| 116 | struct fib, |
| 117 | fiblink); |
| 118 | list_del(entry); |
| 119 | send_it = 1; |
| 120 | } else { |
| 121 | dev->sync_fib = NULL; |
| 122 | } |
| 123 | spin_unlock_irqrestore(&dev->sync_lock, sflags); |
| 124 | if (send_it) { |
| 125 | aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB, |
| 126 | (u32)dev->sync_fib->hw_fib_pa, |
| 127 | 0, 0, 0, 0, 0, |
| 128 | NULL, NULL, NULL, NULL, NULL); |
| 129 | } |
| 130 | } |
| 131 | if (!dev->msi_enabled) |
| 132 | mode = 0; |
| 133 | |
| 134 | } |
| 135 | |
| 136 | if (mode & AAC_INT_MODE_AIF) { |
| 137 | /* handle AIF */ |
Raghava Aditya Renukunta | 9cb62fa | 2016-04-25 23:32:09 -0700 | [diff] [blame] | 138 | if (dev->aif_thread && dev->fsa_dev) |
| 139 | aac_intr_normal(dev, 0, 2, 0, NULL); |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 140 | if (dev->msi_enabled) |
| 141 | aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT); |
| 142 | mode = 0; |
| 143 | } |
| 144 | |
| 145 | if (mode) { |
| 146 | index = dev->host_rrq_idx[vector_no]; |
| 147 | |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 148 | for (;;) { |
| 149 | isFastResponse = 0; |
| 150 | /* remove toggle bit (31) */ |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 151 | handle = (dev->host_rrq[index] & 0x7fffffff); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 152 | /* check fast response bit (30) */ |
| 153 | if (handle & 0x40000000) |
| 154 | isFastResponse = 1; |
| 155 | handle &= 0x0000ffff; |
| 156 | if (handle == 0) |
| 157 | break; |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 158 | if (dev->msi_enabled && dev->max_msix > 1) |
| 159 | atomic_dec(&dev->rrq_outstanding[vector_no]); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 160 | dev->host_rrq[index++] = 0; |
Raghava Aditya Renukunta | 3f4ce05 | 2016-02-03 15:06:00 -0800 | [diff] [blame] | 161 | aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL); |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 162 | if (index == (vector_no + 1) * dev->vector_cap) |
| 163 | index = vector_no * dev->vector_cap; |
| 164 | dev->host_rrq_idx[vector_no] = index; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 165 | } |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 166 | mode = 0; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 167 | } |
| 168 | |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 169 | return IRQ_HANDLED; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 170 | } |
| 171 | |
| 172 | /** |
| 173 | * aac_src_disable_interrupt - Disable interrupts |
| 174 | * @dev: Adapter |
| 175 | */ |
| 176 | |
| 177 | static void aac_src_disable_interrupt(struct aac_dev *dev) |
| 178 | { |
| 179 | src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * aac_src_enable_interrupt_message - Enable interrupts |
| 184 | * @dev: Adapter |
| 185 | */ |
| 186 | |
| 187 | static void aac_src_enable_interrupt_message(struct aac_dev *dev) |
| 188 | { |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 189 | aac_src_access_devreg(dev, AAC_ENABLE_INTERRUPT); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | /** |
| 193 | * src_sync_cmd - send a command and wait |
| 194 | * @dev: Adapter |
| 195 | * @command: Command to execute |
| 196 | * @p1: first parameter |
| 197 | * @ret: adapter status |
| 198 | * |
| 199 | * This routine will send a synchronous command to the adapter and wait |
| 200 | * for its completion. |
| 201 | */ |
| 202 | |
| 203 | static int src_sync_cmd(struct aac_dev *dev, u32 command, |
| 204 | u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, |
| 205 | u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4) |
| 206 | { |
| 207 | unsigned long start; |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 208 | unsigned long delay; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 209 | int ok; |
| 210 | |
| 211 | /* |
| 212 | * Write the command into Mailbox 0 |
| 213 | */ |
| 214 | writel(command, &dev->IndexRegs->Mailbox[0]); |
| 215 | /* |
| 216 | * Write the parameters into Mailboxes 1 - 6 |
| 217 | */ |
| 218 | writel(p1, &dev->IndexRegs->Mailbox[1]); |
| 219 | writel(p2, &dev->IndexRegs->Mailbox[2]); |
| 220 | writel(p3, &dev->IndexRegs->Mailbox[3]); |
| 221 | writel(p4, &dev->IndexRegs->Mailbox[4]); |
| 222 | |
| 223 | /* |
| 224 | * Clear the synch command doorbell to start on a clean slate. |
| 225 | */ |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 226 | if (!dev->msi_enabled) |
| 227 | src_writel(dev, |
| 228 | MUnit.ODR_C, |
| 229 | OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 230 | |
| 231 | /* |
| 232 | * Disable doorbell interrupts |
| 233 | */ |
| 234 | src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); |
| 235 | |
| 236 | /* |
| 237 | * Force the completion of the mask register write before issuing |
| 238 | * the interrupt. |
| 239 | */ |
| 240 | src_readl(dev, MUnit.OIMR); |
| 241 | |
| 242 | /* |
| 243 | * Signal that there is a new synch command |
| 244 | */ |
| 245 | src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT); |
| 246 | |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 247 | if (!dev->sync_mode || command != SEND_SYNCHRONOUS_FIB) { |
| 248 | ok = 0; |
| 249 | start = jiffies; |
| 250 | |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 251 | if (command == IOP_RESET_ALWAYS) { |
| 252 | /* Wait up to 10 sec */ |
| 253 | delay = 10*HZ; |
| 254 | } else { |
| 255 | /* Wait up to 5 minutes */ |
| 256 | delay = 300*HZ; |
| 257 | } |
| 258 | while (time_before(jiffies, start+delay)) { |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 259 | udelay(5); /* Delay 5 microseconds to let Mon960 get info. */ |
| 260 | /* |
| 261 | * Mon960 will set doorbell0 bit when it has completed the command. |
| 262 | */ |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 263 | if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) { |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 264 | /* |
| 265 | * Clear the doorbell. |
| 266 | */ |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 267 | if (dev->msi_enabled) |
| 268 | aac_src_access_devreg(dev, |
| 269 | AAC_CLEAR_SYNC_BIT); |
| 270 | else |
| 271 | src_writel(dev, |
| 272 | MUnit.ODR_C, |
| 273 | OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 274 | ok = 1; |
| 275 | break; |
| 276 | } |
| 277 | /* |
| 278 | * Yield the processor in case we are slow |
| 279 | */ |
| 280 | msleep(1); |
| 281 | } |
| 282 | if (unlikely(ok != 1)) { |
| 283 | /* |
| 284 | * Restore interrupt mask even though we timed out |
| 285 | */ |
| 286 | aac_adapter_enable_int(dev); |
| 287 | return -ETIMEDOUT; |
| 288 | } |
| 289 | /* |
| 290 | * Pull the synch status from Mailbox 0. |
| 291 | */ |
| 292 | if (status) |
| 293 | *status = readl(&dev->IndexRegs->Mailbox[0]); |
| 294 | if (r1) |
| 295 | *r1 = readl(&dev->IndexRegs->Mailbox[1]); |
| 296 | if (r2) |
| 297 | *r2 = readl(&dev->IndexRegs->Mailbox[2]); |
| 298 | if (r3) |
| 299 | *r3 = readl(&dev->IndexRegs->Mailbox[3]); |
| 300 | if (r4) |
| 301 | *r4 = readl(&dev->IndexRegs->Mailbox[4]); |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 302 | if (command == GET_COMM_PREFERRED_SETTINGS) |
| 303 | dev->max_msix = |
| 304 | readl(&dev->IndexRegs->Mailbox[5]) & 0xFFFF; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 305 | /* |
| 306 | * Clear the synch command doorbell. |
| 307 | */ |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 308 | if (!dev->msi_enabled) |
| 309 | src_writel(dev, |
| 310 | MUnit.ODR_C, |
| 311 | OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 312 | } |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 313 | |
| 314 | /* |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 315 | * Restore interrupt mask |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 316 | */ |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 317 | aac_adapter_enable_int(dev); |
| 318 | return 0; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 319 | } |
| 320 | |
| 321 | /** |
| 322 | * aac_src_interrupt_adapter - interrupt adapter |
| 323 | * @dev: Adapter |
| 324 | * |
| 325 | * Send an interrupt to the i960 and breakpoint it. |
| 326 | */ |
| 327 | |
| 328 | static void aac_src_interrupt_adapter(struct aac_dev *dev) |
| 329 | { |
| 330 | src_sync_cmd(dev, BREAKPOINT_REQUEST, |
| 331 | 0, 0, 0, 0, 0, 0, |
| 332 | NULL, NULL, NULL, NULL, NULL); |
| 333 | } |
| 334 | |
| 335 | /** |
| 336 | * aac_src_notify_adapter - send an event to the adapter |
| 337 | * @dev: Adapter |
| 338 | * @event: Event to send |
| 339 | * |
| 340 | * Notify the i960 that something it probably cares about has |
| 341 | * happened. |
| 342 | */ |
| 343 | |
| 344 | static void aac_src_notify_adapter(struct aac_dev *dev, u32 event) |
| 345 | { |
| 346 | switch (event) { |
| 347 | |
| 348 | case AdapNormCmdQue: |
| 349 | src_writel(dev, MUnit.ODR_C, |
| 350 | INBOUNDDOORBELL_1 << SRC_ODR_SHIFT); |
| 351 | break; |
| 352 | case HostNormRespNotFull: |
| 353 | src_writel(dev, MUnit.ODR_C, |
| 354 | INBOUNDDOORBELL_4 << SRC_ODR_SHIFT); |
| 355 | break; |
| 356 | case AdapNormRespQue: |
| 357 | src_writel(dev, MUnit.ODR_C, |
| 358 | INBOUNDDOORBELL_2 << SRC_ODR_SHIFT); |
| 359 | break; |
| 360 | case HostNormCmdNotFull: |
| 361 | src_writel(dev, MUnit.ODR_C, |
| 362 | INBOUNDDOORBELL_3 << SRC_ODR_SHIFT); |
| 363 | break; |
| 364 | case FastIo: |
| 365 | src_writel(dev, MUnit.ODR_C, |
| 366 | INBOUNDDOORBELL_6 << SRC_ODR_SHIFT); |
| 367 | break; |
| 368 | case AdapPrintfDone: |
| 369 | src_writel(dev, MUnit.ODR_C, |
| 370 | INBOUNDDOORBELL_5 << SRC_ODR_SHIFT); |
| 371 | break; |
| 372 | default: |
| 373 | BUG(); |
| 374 | break; |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | /** |
| 379 | * aac_src_start_adapter - activate adapter |
| 380 | * @dev: Adapter |
| 381 | * |
| 382 | * Start up processing on an i960 based AAC adapter |
| 383 | */ |
| 384 | |
| 385 | static void aac_src_start_adapter(struct aac_dev *dev) |
| 386 | { |
| 387 | struct aac_init *init; |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 388 | int i; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 389 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 390 | /* reset host_rrq_idx first */ |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 391 | for (i = 0; i < dev->max_msix; i++) { |
| 392 | dev->host_rrq_idx[i] = i * dev->vector_cap; |
| 393 | atomic_set(&dev->rrq_outstanding[i], 0); |
| 394 | } |
| 395 | dev->fibs_pushed_no = 0; |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 396 | |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 397 | init = dev->init; |
| 398 | init->HostElapsedSeconds = cpu_to_le32(get_seconds()); |
| 399 | |
| 400 | /* We can only use a 32 bit address here */ |
| 401 | src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, (u32)(ulong)dev->init_pa, |
| 402 | 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); |
| 403 | } |
| 404 | |
| 405 | /** |
| 406 | * aac_src_check_health |
| 407 | * @dev: device to check if healthy |
| 408 | * |
| 409 | * Will attempt to determine if the specified adapter is alive and |
| 410 | * capable of handling requests, returning 0 if alive. |
| 411 | */ |
| 412 | static int aac_src_check_health(struct aac_dev *dev) |
| 413 | { |
| 414 | u32 status = src_readl(dev, MUnit.OMR); |
| 415 | |
| 416 | /* |
| 417 | * Check to see if the board failed any self tests. |
| 418 | */ |
| 419 | if (unlikely(status & SELF_TEST_FAILED)) |
| 420 | return -1; |
| 421 | |
| 422 | /* |
| 423 | * Check to see if the board panic'd. |
| 424 | */ |
| 425 | if (unlikely(status & KERNEL_PANIC)) |
| 426 | return (status >> 16) & 0xFF; |
| 427 | /* |
| 428 | * Wait for the adapter to be up and running. |
| 429 | */ |
| 430 | if (unlikely(!(status & KERNEL_UP_AND_RUNNING))) |
| 431 | return -3; |
| 432 | /* |
| 433 | * Everything is OK |
| 434 | */ |
| 435 | return 0; |
| 436 | } |
| 437 | |
| 438 | /** |
| 439 | * aac_src_deliver_message |
| 440 | * @fib: fib to issue |
| 441 | * |
| 442 | * Will send a fib, returning 0 if successful. |
| 443 | */ |
| 444 | static int aac_src_deliver_message(struct fib *fib) |
| 445 | { |
| 446 | struct aac_dev *dev = fib->dev; |
| 447 | struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue]; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 448 | u32 fibsize; |
Ben Collins | b5f1758 | 2012-06-11 16:14:36 -0400 | [diff] [blame] | 449 | dma_addr_t address; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 450 | struct aac_fib_xporthdr *pFibX; |
Mahesh Rajashekhara | c699278 | 2015-08-28 06:38:36 -0400 | [diff] [blame] | 451 | #if !defined(writeq) |
| 452 | unsigned long flags; |
| 453 | #endif |
| 454 | |
Ben Collins | b5f1758 | 2012-06-11 16:14:36 -0400 | [diff] [blame] | 455 | u16 hdr_size = le16_to_cpu(fib->hw_fib_va->header.Size); |
Raghava Aditya Renukunta | 3f4ce05 | 2016-02-03 15:06:00 -0800 | [diff] [blame] | 456 | u16 vector_no; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 457 | |
Mahesh Rajashekhara | ef61623 | 2015-03-26 10:41:30 -0400 | [diff] [blame] | 458 | atomic_inc(&q->numpending); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 459 | |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 460 | if (dev->msi_enabled && fib->hw_fib_va->header.Command != AifRequest && |
| 461 | dev->max_msix > 1) { |
Raghava Aditya Renukunta | 3f4ce05 | 2016-02-03 15:06:00 -0800 | [diff] [blame] | 462 | vector_no = fib->vector_no; |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 463 | fib->hw_fib_va->header.Handle += (vector_no << 16); |
Raghava Aditya Renukunta | 3f4ce05 | 2016-02-03 15:06:00 -0800 | [diff] [blame] | 464 | } else { |
| 465 | vector_no = 0; |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 466 | } |
| 467 | |
Raghava Aditya Renukunta | 3f4ce05 | 2016-02-03 15:06:00 -0800 | [diff] [blame] | 468 | atomic_inc(&dev->rrq_outstanding[vector_no]); |
| 469 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 470 | if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { |
| 471 | /* Calculate the amount to the fibsize bits */ |
| 472 | fibsize = (hdr_size + 127) / 128 - 1; |
| 473 | if (fibsize > (ALIGN32 - 1)) |
| 474 | return -EMSGSIZE; |
| 475 | /* New FIB header, 32-bit */ |
| 476 | address = fib->hw_fib_pa; |
| 477 | fib->hw_fib_va->header.StructType = FIB_MAGIC2; |
| 478 | fib->hw_fib_va->header.SenderFibAddress = (u32)address; |
| 479 | fib->hw_fib_va->header.u.TimeStamp = 0; |
Paul Bolle | 98f99a8 | 2013-02-21 12:39:44 +0100 | [diff] [blame] | 480 | BUG_ON(upper_32_bits(address) != 0L); |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 481 | address |= fibsize; |
| 482 | } else { |
| 483 | /* Calculate the amount to the fibsize bits */ |
| 484 | fibsize = (sizeof(struct aac_fib_xporthdr) + hdr_size + 127) / 128 - 1; |
| 485 | if (fibsize > (ALIGN32 - 1)) |
| 486 | return -EMSGSIZE; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 487 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 488 | /* Fill XPORT header */ |
| 489 | pFibX = (void *)fib->hw_fib_va - sizeof(struct aac_fib_xporthdr); |
| 490 | pFibX->Handle = cpu_to_le32(fib->hw_fib_va->header.Handle); |
| 491 | pFibX->HostAddress = cpu_to_le64(fib->hw_fib_pa); |
| 492 | pFibX->Size = cpu_to_le32(hdr_size); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 493 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 494 | /* |
| 495 | * The xport header has been 32-byte aligned for us so that fibsize |
| 496 | * can be masked out of this address by hardware. -- BenC |
| 497 | */ |
| 498 | address = fib->hw_fib_pa - sizeof(struct aac_fib_xporthdr); |
| 499 | if (address & (ALIGN32 - 1)) |
| 500 | return -EINVAL; |
| 501 | address |= fibsize; |
| 502 | } |
Mahesh Rajashekhara | c699278 | 2015-08-28 06:38:36 -0400 | [diff] [blame] | 503 | #if defined(writeq) |
| 504 | src_writeq(dev, MUnit.IQ_L, (u64)address); |
| 505 | #else |
| 506 | spin_lock_irqsave(&fib->dev->iq_lock, flags); |
Paul Bolle | 98f99a8 | 2013-02-21 12:39:44 +0100 | [diff] [blame] | 507 | src_writel(dev, MUnit.IQ_H, upper_32_bits(address) & 0xffffffff); |
Ben Collins | b5f1758 | 2012-06-11 16:14:36 -0400 | [diff] [blame] | 508 | src_writel(dev, MUnit.IQ_L, address & 0xffffffff); |
Mahesh Rajashekhara | c699278 | 2015-08-28 06:38:36 -0400 | [diff] [blame] | 509 | spin_unlock_irqrestore(&fib->dev->iq_lock, flags); |
| 510 | #endif |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 511 | return 0; |
| 512 | } |
| 513 | |
| 514 | /** |
| 515 | * aac_src_ioremap |
| 516 | * @size: mapping resize request |
| 517 | * |
| 518 | */ |
| 519 | static int aac_src_ioremap(struct aac_dev *dev, u32 size) |
| 520 | { |
| 521 | if (!size) { |
Tomas Henzl | 7155250 | 2012-03-29 17:23:46 +0200 | [diff] [blame] | 522 | iounmap(dev->regs.src.bar1); |
| 523 | dev->regs.src.bar1 = NULL; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 524 | iounmap(dev->regs.src.bar0); |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 525 | dev->base = dev->regs.src.bar0 = NULL; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 526 | return 0; |
| 527 | } |
| 528 | dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2), |
| 529 | AAC_MIN_SRC_BAR1_SIZE); |
| 530 | dev->base = NULL; |
| 531 | if (dev->regs.src.bar1 == NULL) |
| 532 | return -1; |
Ben Collins | ff08784 | 2012-06-11 14:05:02 -0400 | [diff] [blame] | 533 | dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 534 | if (dev->base == NULL) { |
| 535 | iounmap(dev->regs.src.bar1); |
| 536 | dev->regs.src.bar1 = NULL; |
| 537 | return -1; |
| 538 | } |
| 539 | dev->IndexRegs = &((struct src_registers __iomem *) |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 540 | dev->base)->u.tupelo.IndexRegs; |
| 541 | return 0; |
| 542 | } |
| 543 | |
| 544 | /** |
| 545 | * aac_srcv_ioremap |
| 546 | * @size: mapping resize request |
| 547 | * |
| 548 | */ |
| 549 | static int aac_srcv_ioremap(struct aac_dev *dev, u32 size) |
| 550 | { |
| 551 | if (!size) { |
| 552 | iounmap(dev->regs.src.bar0); |
| 553 | dev->base = dev->regs.src.bar0 = NULL; |
| 554 | return 0; |
| 555 | } |
Ben Collins | ff08784 | 2012-06-11 14:05:02 -0400 | [diff] [blame] | 556 | dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 557 | if (dev->base == NULL) |
| 558 | return -1; |
| 559 | dev->IndexRegs = &((struct src_registers __iomem *) |
| 560 | dev->base)->u.denali.IndexRegs; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 561 | return 0; |
| 562 | } |
| 563 | |
| 564 | static int aac_src_restart_adapter(struct aac_dev *dev, int bled) |
| 565 | { |
| 566 | u32 var, reset_mask; |
| 567 | |
| 568 | if (bled >= 0) { |
| 569 | if (bled) |
| 570 | printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n", |
| 571 | dev->name, dev->id, bled); |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 572 | dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 573 | bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS, |
| 574 | 0, 0, 0, 0, 0, 0, &var, &reset_mask, NULL, NULL, NULL); |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 575 | if ((bled || (var != 0x00000001)) && |
| 576 | !dev->doorbell_mask) |
| 577 | return -EINVAL; |
| 578 | else if (dev->doorbell_mask) { |
| 579 | reset_mask = dev->doorbell_mask; |
| 580 | bled = 0; |
| 581 | var = 0x00000001; |
| 582 | } |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 583 | |
| 584 | if ((dev->pdev->device == PMC_DEVICE_S7 || |
| 585 | dev->pdev->device == PMC_DEVICE_S8 || |
| 586 | dev->pdev->device == PMC_DEVICE_S9) && dev->msi_enabled) { |
| 587 | aac_src_access_devreg(dev, AAC_ENABLE_INTX); |
| 588 | dev->msi_enabled = 0; |
| 589 | msleep(5000); /* Delay 5 seconds */ |
| 590 | } |
| 591 | |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 592 | if (!bled && (dev->supplement_adapter_info.SupportedOptions2 & |
| 593 | AAC_OPTION_DOORBELL_RESET)) { |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 594 | src_writel(dev, MUnit.IDR, reset_mask); |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 595 | ssleep(45); |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 596 | } else { |
| 597 | src_writel(dev, MUnit.IDR, 0x100); |
| 598 | ssleep(45); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 599 | } |
| 600 | } |
| 601 | |
| 602 | if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC) |
| 603 | return -ENODEV; |
| 604 | |
| 605 | if (startup_timeout < 300) |
| 606 | startup_timeout = 300; |
| 607 | |
| 608 | return 0; |
| 609 | } |
| 610 | |
| 611 | /** |
| 612 | * aac_src_select_comm - Select communications method |
| 613 | * @dev: Adapter |
| 614 | * @comm: communications method |
| 615 | */ |
| 616 | int aac_src_select_comm(struct aac_dev *dev, int comm) |
| 617 | { |
| 618 | switch (comm) { |
| 619 | case AAC_COMM_MESSAGE: |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 620 | dev->a_ops.adapter_intr = aac_src_intr_message; |
| 621 | dev->a_ops.adapter_deliver = aac_src_deliver_message; |
| 622 | break; |
| 623 | default: |
| 624 | return 1; |
| 625 | } |
| 626 | return 0; |
| 627 | } |
| 628 | |
| 629 | /** |
| 630 | * aac_src_init - initialize an Cardinal Frey Bar card |
| 631 | * @dev: device to configure |
| 632 | * |
| 633 | */ |
| 634 | |
| 635 | int aac_src_init(struct aac_dev *dev) |
| 636 | { |
| 637 | unsigned long start; |
| 638 | unsigned long status; |
| 639 | int restart = 0; |
| 640 | int instance = dev->id; |
| 641 | const char *name = dev->name; |
| 642 | |
| 643 | dev->a_ops.adapter_ioremap = aac_src_ioremap; |
| 644 | dev->a_ops.adapter_comm = aac_src_select_comm; |
| 645 | |
| 646 | dev->base_size = AAC_MIN_SRC_BAR0_SIZE; |
| 647 | if (aac_adapter_ioremap(dev, dev->base_size)) { |
| 648 | printk(KERN_WARNING "%s: unable to map adapter.\n", name); |
| 649 | goto error_iounmap; |
| 650 | } |
| 651 | |
| 652 | /* Failure to reset here is an option ... */ |
| 653 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 654 | dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; |
| 655 | if ((aac_reset_devices || reset_devices) && |
| 656 | !aac_src_restart_adapter(dev, 0)) |
| 657 | ++restart; |
| 658 | /* |
| 659 | * Check to see if the board panic'd while booting. |
| 660 | */ |
| 661 | status = src_readl(dev, MUnit.OMR); |
| 662 | if (status & KERNEL_PANIC) { |
| 663 | if (aac_src_restart_adapter(dev, aac_src_check_health(dev))) |
| 664 | goto error_iounmap; |
| 665 | ++restart; |
| 666 | } |
| 667 | /* |
| 668 | * Check to see if the board failed any self tests. |
| 669 | */ |
| 670 | status = src_readl(dev, MUnit.OMR); |
| 671 | if (status & SELF_TEST_FAILED) { |
| 672 | printk(KERN_ERR "%s%d: adapter self-test failed.\n", |
| 673 | dev->name, instance); |
| 674 | goto error_iounmap; |
| 675 | } |
| 676 | /* |
| 677 | * Check to see if the monitor panic'd while booting. |
| 678 | */ |
| 679 | if (status & MONITOR_PANIC) { |
| 680 | printk(KERN_ERR "%s%d: adapter monitor panic.\n", |
| 681 | dev->name, instance); |
| 682 | goto error_iounmap; |
| 683 | } |
| 684 | start = jiffies; |
| 685 | /* |
| 686 | * Wait for the adapter to be up and running. Wait up to 3 minutes |
| 687 | */ |
| 688 | while (!((status = src_readl(dev, MUnit.OMR)) & |
| 689 | KERNEL_UP_AND_RUNNING)) { |
| 690 | if ((restart && |
| 691 | (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || |
| 692 | time_after(jiffies, start+HZ*startup_timeout)) { |
| 693 | printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", |
| 694 | dev->name, instance, status); |
| 695 | goto error_iounmap; |
| 696 | } |
| 697 | if (!restart && |
| 698 | ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || |
| 699 | time_after(jiffies, start + HZ * |
| 700 | ((startup_timeout > 60) |
| 701 | ? (startup_timeout - 60) |
| 702 | : (startup_timeout / 2))))) { |
| 703 | if (likely(!aac_src_restart_adapter(dev, |
| 704 | aac_src_check_health(dev)))) |
| 705 | start = jiffies; |
| 706 | ++restart; |
| 707 | } |
| 708 | msleep(1); |
| 709 | } |
| 710 | if (restart && aac_commit) |
| 711 | aac_commit = 1; |
| 712 | /* |
| 713 | * Fill in the common function dispatch table. |
| 714 | */ |
| 715 | dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; |
| 716 | dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 717 | dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 718 | dev->a_ops.adapter_notify = aac_src_notify_adapter; |
| 719 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 720 | dev->a_ops.adapter_check_health = aac_src_check_health; |
| 721 | dev->a_ops.adapter_restart = aac_src_restart_adapter; |
Mahesh Rajashekhara | de665f2 | 2015-08-28 06:38:34 -0400 | [diff] [blame] | 722 | dev->a_ops.adapter_start = aac_src_start_adapter; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 723 | |
| 724 | /* |
| 725 | * First clear out all interrupts. Then enable the one's that we |
| 726 | * can handle. |
| 727 | */ |
| 728 | aac_adapter_comm(dev, AAC_COMM_MESSAGE); |
| 729 | aac_adapter_disable_int(dev); |
| 730 | src_writel(dev, MUnit.ODR_C, 0xffffffff); |
| 731 | aac_adapter_enable_int(dev); |
| 732 | |
| 733 | if (aac_init_adapter(dev) == NULL) |
| 734 | goto error_iounmap; |
| 735 | if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1) |
| 736 | goto error_iounmap; |
| 737 | |
Mahesh Rajashekhara | 9022d37 | 2015-08-28 06:38:35 -0400 | [diff] [blame] | 738 | dev->msi = !pci_enable_msi(dev->pdev); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 739 | |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 740 | dev->aac_msix[0].vector_no = 0; |
| 741 | dev->aac_msix[0].dev = dev; |
| 742 | |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 743 | if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 744 | IRQF_SHARED, "aacraid", &(dev->aac_msix[0])) < 0) { |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 745 | |
| 746 | if (dev->msi) |
| 747 | pci_disable_msi(dev->pdev); |
| 748 | |
| 749 | printk(KERN_ERR "%s%d: Interrupt unavailable.\n", |
| 750 | name, instance); |
| 751 | goto error_iounmap; |
| 752 | } |
| 753 | dev->dbg_base = pci_resource_start(dev->pdev, 2); |
| 754 | dev->dbg_base_mapped = dev->regs.src.bar1; |
| 755 | dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE; |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 756 | dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 757 | |
| 758 | aac_adapter_enable_int(dev); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 759 | |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 760 | if (!dev->sync_mode) { |
| 761 | /* |
| 762 | * Tell the adapter that all is configured, and it can |
| 763 | * start accepting requests |
| 764 | */ |
| 765 | aac_src_start_adapter(dev); |
| 766 | } |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 767 | return 0; |
| 768 | |
| 769 | error_iounmap: |
| 770 | |
| 771 | return -1; |
| 772 | } |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 773 | |
| 774 | /** |
| 775 | * aac_srcv_init - initialize an SRCv card |
| 776 | * @dev: device to configure |
| 777 | * |
| 778 | */ |
| 779 | |
| 780 | int aac_srcv_init(struct aac_dev *dev) |
| 781 | { |
| 782 | unsigned long start; |
| 783 | unsigned long status; |
| 784 | int restart = 0; |
| 785 | int instance = dev->id; |
| 786 | const char *name = dev->name; |
| 787 | |
| 788 | dev->a_ops.adapter_ioremap = aac_srcv_ioremap; |
| 789 | dev->a_ops.adapter_comm = aac_src_select_comm; |
| 790 | |
| 791 | dev->base_size = AAC_MIN_SRCV_BAR0_SIZE; |
| 792 | if (aac_adapter_ioremap(dev, dev->base_size)) { |
| 793 | printk(KERN_WARNING "%s: unable to map adapter.\n", name); |
| 794 | goto error_iounmap; |
| 795 | } |
| 796 | |
| 797 | /* Failure to reset here is an option ... */ |
| 798 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 799 | dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; |
| 800 | if ((aac_reset_devices || reset_devices) && |
| 801 | !aac_src_restart_adapter(dev, 0)) |
| 802 | ++restart; |
| 803 | /* |
Mahesh Rajashekhara | 2c10cd4 | 2013-03-19 12:37:26 +0530 | [diff] [blame] | 804 | * Check to see if flash update is running. |
| 805 | * Wait for the adapter to be up and running. Wait up to 5 minutes |
| 806 | */ |
| 807 | status = src_readl(dev, MUnit.OMR); |
| 808 | if (status & FLASH_UPD_PENDING) { |
| 809 | start = jiffies; |
| 810 | do { |
| 811 | status = src_readl(dev, MUnit.OMR); |
| 812 | if (time_after(jiffies, start+HZ*FWUPD_TIMEOUT)) { |
| 813 | printk(KERN_ERR "%s%d: adapter flash update failed.\n", |
| 814 | dev->name, instance); |
| 815 | goto error_iounmap; |
| 816 | } |
| 817 | } while (!(status & FLASH_UPD_SUCCESS) && |
| 818 | !(status & FLASH_UPD_FAILED)); |
| 819 | /* Delay 10 seconds. |
| 820 | * Because right now FW is doing a soft reset, |
| 821 | * do not read scratch pad register at this time |
| 822 | */ |
| 823 | ssleep(10); |
| 824 | } |
| 825 | /* |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 826 | * Check to see if the board panic'd while booting. |
| 827 | */ |
| 828 | status = src_readl(dev, MUnit.OMR); |
| 829 | if (status & KERNEL_PANIC) { |
| 830 | if (aac_src_restart_adapter(dev, aac_src_check_health(dev))) |
| 831 | goto error_iounmap; |
| 832 | ++restart; |
| 833 | } |
| 834 | /* |
| 835 | * Check to see if the board failed any self tests. |
| 836 | */ |
| 837 | status = src_readl(dev, MUnit.OMR); |
| 838 | if (status & SELF_TEST_FAILED) { |
| 839 | printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance); |
| 840 | goto error_iounmap; |
| 841 | } |
| 842 | /* |
| 843 | * Check to see if the monitor panic'd while booting. |
| 844 | */ |
| 845 | if (status & MONITOR_PANIC) { |
| 846 | printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance); |
| 847 | goto error_iounmap; |
| 848 | } |
| 849 | start = jiffies; |
| 850 | /* |
| 851 | * Wait for the adapter to be up and running. Wait up to 3 minutes |
| 852 | */ |
Mahesh Rajashekhara | 2c10cd4 | 2013-03-19 12:37:26 +0530 | [diff] [blame] | 853 | while (!((status = src_readl(dev, MUnit.OMR)) & |
| 854 | KERNEL_UP_AND_RUNNING) || |
| 855 | status == 0xffffffff) { |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 856 | if ((restart && |
| 857 | (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || |
| 858 | time_after(jiffies, start+HZ*startup_timeout)) { |
| 859 | printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", |
| 860 | dev->name, instance, status); |
| 861 | goto error_iounmap; |
| 862 | } |
| 863 | if (!restart && |
| 864 | ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || |
| 865 | time_after(jiffies, start + HZ * |
| 866 | ((startup_timeout > 60) |
| 867 | ? (startup_timeout - 60) |
| 868 | : (startup_timeout / 2))))) { |
| 869 | if (likely(!aac_src_restart_adapter(dev, aac_src_check_health(dev)))) |
| 870 | start = jiffies; |
| 871 | ++restart; |
| 872 | } |
| 873 | msleep(1); |
| 874 | } |
| 875 | if (restart && aac_commit) |
| 876 | aac_commit = 1; |
| 877 | /* |
| 878 | * Fill in the common function dispatch table. |
| 879 | */ |
| 880 | dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; |
| 881 | dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 882 | dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 883 | dev->a_ops.adapter_notify = aac_src_notify_adapter; |
| 884 | dev->a_ops.adapter_sync_cmd = src_sync_cmd; |
| 885 | dev->a_ops.adapter_check_health = aac_src_check_health; |
| 886 | dev->a_ops.adapter_restart = aac_src_restart_adapter; |
Mahesh Rajashekhara | de665f2 | 2015-08-28 06:38:34 -0400 | [diff] [blame] | 887 | dev->a_ops.adapter_start = aac_src_start_adapter; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 888 | |
| 889 | /* |
| 890 | * First clear out all interrupts. Then enable the one's that we |
| 891 | * can handle. |
| 892 | */ |
| 893 | aac_adapter_comm(dev, AAC_COMM_MESSAGE); |
| 894 | aac_adapter_disable_int(dev); |
| 895 | src_writel(dev, MUnit.ODR_C, 0xffffffff); |
| 896 | aac_adapter_enable_int(dev); |
| 897 | |
| 898 | if (aac_init_adapter(dev) == NULL) |
| 899 | goto error_iounmap; |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 900 | if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE2) |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 901 | goto error_iounmap; |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 902 | if (dev->msi_enabled) |
| 903 | aac_src_access_devreg(dev, AAC_ENABLE_MSIX); |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 904 | |
Mahesh Rajashekhara | 8b1462e | 2015-08-28 06:38:38 -0400 | [diff] [blame] | 905 | if (aac_acquire_irq(dev)) |
| 906 | goto error_iounmap; |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 907 | |
Ben Collins | ff08784 | 2012-06-11 14:05:02 -0400 | [diff] [blame] | 908 | dev->dbg_base = dev->base_start; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 909 | dev->dbg_base_mapped = dev->base; |
| 910 | dev->dbg_size = dev->base_size; |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 911 | dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 912 | |
| 913 | aac_adapter_enable_int(dev); |
| 914 | |
| 915 | if (!dev->sync_mode) { |
| 916 | /* |
| 917 | * Tell the adapter that all is configured, and it can |
| 918 | * start accepting requests |
| 919 | */ |
| 920 | aac_src_start_adapter(dev); |
| 921 | } |
| 922 | return 0; |
| 923 | |
| 924 | error_iounmap: |
| 925 | |
| 926 | return -1; |
| 927 | } |
| 928 | |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 929 | void aac_src_access_devreg(struct aac_dev *dev, int mode) |
| 930 | { |
| 931 | u_int32_t val; |
| 932 | |
| 933 | switch (mode) { |
| 934 | case AAC_ENABLE_INTERRUPT: |
| 935 | src_writel(dev, |
| 936 | MUnit.OIMR, |
| 937 | dev->OIMR = (dev->msi_enabled ? |
| 938 | AAC_INT_ENABLE_TYPE1_MSIX : |
| 939 | AAC_INT_ENABLE_TYPE1_INTX)); |
| 940 | break; |
| 941 | |
| 942 | case AAC_DISABLE_INTERRUPT: |
| 943 | src_writel(dev, |
| 944 | MUnit.OIMR, |
| 945 | dev->OIMR = AAC_INT_DISABLE_ALL); |
| 946 | break; |
| 947 | |
| 948 | case AAC_ENABLE_MSIX: |
| 949 | /* set bit 6 */ |
| 950 | val = src_readl(dev, MUnit.IDR); |
| 951 | val |= 0x40; |
| 952 | src_writel(dev, MUnit.IDR, val); |
| 953 | src_readl(dev, MUnit.IDR); |
| 954 | /* unmask int. */ |
| 955 | val = PMC_ALL_INTERRUPT_BITS; |
| 956 | src_writel(dev, MUnit.IOAR, val); |
| 957 | val = src_readl(dev, MUnit.OIMR); |
| 958 | src_writel(dev, |
| 959 | MUnit.OIMR, |
| 960 | val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0))); |
| 961 | break; |
| 962 | |
| 963 | case AAC_DISABLE_MSIX: |
| 964 | /* reset bit 6 */ |
| 965 | val = src_readl(dev, MUnit.IDR); |
| 966 | val &= ~0x40; |
| 967 | src_writel(dev, MUnit.IDR, val); |
| 968 | src_readl(dev, MUnit.IDR); |
| 969 | break; |
| 970 | |
| 971 | case AAC_CLEAR_AIF_BIT: |
| 972 | /* set bit 5 */ |
| 973 | val = src_readl(dev, MUnit.IDR); |
| 974 | val |= 0x20; |
| 975 | src_writel(dev, MUnit.IDR, val); |
| 976 | src_readl(dev, MUnit.IDR); |
| 977 | break; |
| 978 | |
| 979 | case AAC_CLEAR_SYNC_BIT: |
| 980 | /* set bit 4 */ |
| 981 | val = src_readl(dev, MUnit.IDR); |
| 982 | val |= 0x10; |
| 983 | src_writel(dev, MUnit.IDR, val); |
| 984 | src_readl(dev, MUnit.IDR); |
| 985 | break; |
| 986 | |
| 987 | case AAC_ENABLE_INTX: |
| 988 | /* set bit 7 */ |
| 989 | val = src_readl(dev, MUnit.IDR); |
| 990 | val |= 0x80; |
| 991 | src_writel(dev, MUnit.IDR, val); |
| 992 | src_readl(dev, MUnit.IDR); |
| 993 | /* unmask int. */ |
| 994 | val = PMC_ALL_INTERRUPT_BITS; |
| 995 | src_writel(dev, MUnit.IOAR, val); |
| 996 | src_readl(dev, MUnit.IOAR); |
| 997 | val = src_readl(dev, MUnit.OIMR); |
| 998 | src_writel(dev, MUnit.OIMR, |
| 999 | val & (~(PMC_GLOBAL_INT_BIT2))); |
| 1000 | break; |
| 1001 | |
| 1002 | default: |
| 1003 | break; |
| 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | static int aac_src_get_sync_status(struct aac_dev *dev) |
| 1008 | { |
| 1009 | |
| 1010 | int val; |
| 1011 | |
| 1012 | if (dev->msi_enabled) |
| 1013 | val = src_readl(dev, MUnit.ODR_MSI) & 0x1000 ? 1 : 0; |
| 1014 | else |
| 1015 | val = src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT; |
| 1016 | |
| 1017 | return val; |
| 1018 | } |