drivers/scsi/qla4xxx/ql4_mbx.c

   1 /*
   2  * QLogic iSCSI HBA Driver
   3  * Copyright (c)  2003-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qla4xxx for copyright and licensing details.
   6  */
   7
   8 #include "ql4_def.h"
   9 #include "ql4_glbl.h"
  10 #include "ql4_dbg.h"
  11 #include "ql4_inline.h"
  12
  13
  14 /**
  15  * qla4xxx_mailbox_command - issues mailbox commands
  16  * @ha: Pointer to host adapter structure.
  17  * @inCount: number of mailbox registers to load.
  18  * @outCount: number of mailbox registers to return.
  19  * @mbx_cmd: data pointer for mailbox in registers.
  20  * @mbx_sts: data pointer for mailbox out registers.
  21  *
  22  * This routine issue mailbox commands and waits for completion.
  23  * If outCount is 0, this routine completes successfully WITHOUT waiting
  24  * for the mailbox command to complete.
  25  **/
  26 int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
  27                             uint8_t outCount, uint32_t *mbx_cmd,
  28                             uint32_t *mbx_sts)
  29 {
  30         int status = QLA_ERROR;
  31         uint8_t i;
  32         u_long wait_count;
  33         uint32_t intr_status;
  34         unsigned long flags = 0;
  35         uint32_t dev_state;
  36
  37         /* Make sure that pointers are valid */
  38         if (!mbx_cmd || !mbx_sts) {
  39                 DEBUG2(printk("scsi%ld: %s: Invalid mbx_cmd or mbx_sts "
  40                               "pointer\n", ha->host_no, __func__));
  41                 return status;
  42         }
  43
  44         if (is_qla40XX(ha)) {
  45                 if (test_bit(AF_HA_REMOVAL, &ha->flags)) {
  46                         DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
  47                                           "prematurely completing mbx cmd as "
  48                                           "adapter removal detected\n",
  49                                           ha->host_no, __func__));
  50                         return status;
  51                 }
  52         }
  53
  54         if ((is_aer_supported(ha)) &&
  55             (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))) {
  56                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Perm failure on EEH, "
  57                     "timeout MBX Exiting.\n", ha->host_no, __func__));
  58                 return status;
  59         }
  60
  61         /* Mailbox code active */
  62         wait_count = MBOX_TOV * 100;
  63
  64         while (wait_count--) {
  65                 mutex_lock(&ha->mbox_sem);
  66                 if (!test_bit(AF_MBOX_COMMAND, &ha->flags)) {
  67                         set_bit(AF_MBOX_COMMAND, &ha->flags);
  68                         mutex_unlock(&ha->mbox_sem);
  69                         break;
  70                 }
  71                 mutex_unlock(&ha->mbox_sem);
  72                 if (!wait_count) {
  73                         DEBUG2(printk("scsi%ld: %s: mbox_sem failed\n",
  74                                 ha->host_no, __func__));
  75                         return status;
  76                 }
  77                 msleep(10);
  78         }
  79
  80         if (is_qla8022(ha)) {
  81                 if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
  82                         DEBUG2(ql4_printk(KERN_WARNING, ha,
  83                                           "scsi%ld: %s: prematurely completing mbx cmd as firmware recovery detected\n",
  84                                           ha->host_no, __func__));
  85                         goto mbox_exit;
  86                 }
  87                 /* Do not send any mbx cmd if h/w is in failed state*/
  88                 qla4_8xxx_idc_lock(ha);
  89                 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
  90                 qla4_8xxx_idc_unlock(ha);
  91                 if (dev_state == QLA82XX_DEV_FAILED) {
  92                         ql4_printk(KERN_WARNING, ha,
  93                                    "scsi%ld: %s: H/W is in failed state, do not send any mailbox commands\n",
  94                                    ha->host_no, __func__);
  95                         goto mbox_exit;
  96                 }
  97         }
  98
  99         spin_lock_irqsave(&ha->hardware_lock, flags);
 100
 101         ha->mbox_status_count = outCount;
 102         for (i = 0; i < outCount; i++)
 103                 ha->mbox_status[i] = 0;
 104
 105         if (is_qla8022(ha)) {
 106                 /* Load all mailbox registers, except mailbox 0. */
 107                 DEBUG5(
 108                     printk("scsi%ld: %s: Cmd ", ha->host_no, __func__);
 109                     for (i = 0; i < inCount; i++)
 110                         printk("mb%d=%04x ", i, mbx_cmd[i]);
 111                     printk("\n"));
 112
 113                 for (i = 1; i < inCount; i++)
 114                         writel(mbx_cmd[i], &ha->qla4_8xxx_reg->mailbox_in[i]);
 115                 writel(mbx_cmd[0], &ha->qla4_8xxx_reg->mailbox_in[0]);
 116                 readl(&ha->qla4_8xxx_reg->mailbox_in[0]);
 117                 writel(HINT_MBX_INT_PENDING, &ha->qla4_8xxx_reg->hint);
 118         } else {
 119                 /* Load all mailbox registers, except mailbox 0. */
 120                 for (i = 1; i < inCount; i++)
 121                         writel(mbx_cmd[i], &ha->reg->mailbox[i]);
 122
 123                 /* Wakeup firmware  */
 124                 writel(mbx_cmd[0], &ha->reg->mailbox[0]);
 125                 readl(&ha->reg->mailbox[0]);
 126                 writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status);
 127                 readl(&ha->reg->ctrl_status);
 128         }
 129
 130         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 131
 132         /* Wait for completion */
 133
 134         /*
 135          * If we don't want status, don't wait for the mailbox command to
 136          * complete.  For example, MBOX_CMD_RESET_FW doesn't return status,
 137          * you must poll the inbound Interrupt Mask for completion.
 138          */
 139         if (outCount == 0) {
 140                 status = QLA_SUCCESS;
 141                 goto mbox_exit;
 142         }
 143
 144         /*
 145          * Wait for completion: Poll or completion queue
 146          */
 147         if (test_bit(AF_IRQ_ATTACHED, &ha->flags) &&
 148             test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
 149             test_bit(AF_ONLINE, &ha->flags) &&
 150             !test_bit(AF_HA_REMOVAL, &ha->flags)) {
 151                 /* Do not poll for completion. Use completion queue */
 152                 set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
 153                 wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ);
 154                 clear_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
 155         } else {
 156                 /* Poll for command to complete */
 157                 wait_count = jiffies + MBOX_TOV * HZ;
 158                 while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) {
 159                         if (time_after_eq(jiffies, wait_count))
 160                                 break;
 161
 162                         /*
 163                          * Service the interrupt.
 164                          * The ISR will save the mailbox status registers
 165                          * to a temporary storage location in the adapter
 166                          * structure.
 167                          */
 168
 169                         spin_lock_irqsave(&ha->hardware_lock, flags);
 170                         if (is_qla8022(ha)) {
 171                                 intr_status =
 172                                     readl(&ha->qla4_8xxx_reg->host_int);
 173                                 if (intr_status & ISRX_82XX_RISC_INT) {
 174                                         ha->mbox_status_count = outCount;
 175                                         intr_status =
 176                                          readl(&ha->qla4_8xxx_reg->host_status);
 177                                         ha->isp_ops->interrupt_service_routine(
 178                                             ha, intr_status);
 179                                         if (test_bit(AF_INTERRUPTS_ON,
 180                                             &ha->flags) &&
 181                                             test_bit(AF_INTx_ENABLED,
 182                                             &ha->flags))
 183                                                 qla4_8xxx_wr_32(ha,
 184                                                 ha->nx_legacy_intr.tgt_mask_reg,
 185                                                 0xfbff);
 186                                 }
 187                         } else {
 188                                 intr_status = readl(&ha->reg->ctrl_status);
 189                                 if (intr_status & INTR_PENDING) {
 190                                         /*
 191                                          * Service the interrupt.
 192                                          * The ISR will save the mailbox status
 193                                          * registers to a temporary storage
 194                                          * location in the adapter structure.
 195                                          */
 196                                         ha->mbox_status_count = outCount;
 197                                         ha->isp_ops->interrupt_service_routine(
 198                                             ha, intr_status);
 199                                 }
 200                         }
 201                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 202                         msleep(10);
 203                 }
 204         }
 205
 206         /* Check for mailbox timeout. */
 207         if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) {
 208                 if (is_qla8022(ha) &&
 209                     test_bit(AF_FW_RECOVERY, &ha->flags)) {
 210                         DEBUG2(ql4_printk(KERN_INFO, ha,
 211                             "scsi%ld: %s: prematurely completing mbx cmd as "
 212                             "firmware recovery detected\n",
 213                             ha->host_no, __func__));
 214                         goto mbox_exit;
 215                 }
 216                 DEBUG2(printk("scsi%ld: Mailbox Cmd 0x%08X timed out ...,"
 217                               " Scheduling Adapter Reset\n", ha->host_no,
 218                               mbx_cmd[0]));
 219                 ha->mailbox_timeout_count++;
 220                 mbx_sts[0] = (-1);
 221                 set_bit(DPC_RESET_HA, &ha->dpc_flags);
 222                 if (is_qla8022(ha)) {
 223                         ql4_printk(KERN_INFO, ha,
 224                                    "disabling pause transmit on port 0 & 1.\n");
 225                         qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
 226                                         CRB_NIU_XG_PAUSE_CTL_P0 |
 227                                         CRB_NIU_XG_PAUSE_CTL_P1);
 228                 }
 229                 goto mbox_exit;
 230         }
 231
 232         /*
 233          * Copy the mailbox out registers to the caller's mailbox in/out
 234          * structure.
 235          */
 236         spin_lock_irqsave(&ha->hardware_lock, flags);
 237         for (i = 0; i < outCount; i++)
 238                 mbx_sts[i] = ha->mbox_status[i];
 239
 240         /* Set return status and error flags (if applicable). */
 241         switch (ha->mbox_status[0]) {
 242         case MBOX_STS_COMMAND_COMPLETE:
 243                 status = QLA_SUCCESS;
 244                 break;
 245
 246         case MBOX_STS_INTERMEDIATE_COMPLETION:
 247                 status = QLA_SUCCESS;
 248                 break;
 249
 250         case MBOX_STS_BUSY:
 251                 DEBUG2( printk("scsi%ld: %s: Cmd = %08X, ISP BUSY\n",
 252                                ha->host_no, __func__, mbx_cmd[0]));
 253                 ha->mailbox_timeout_count++;
 254                 break;
 255
 256         default:
 257                 DEBUG2(printk("scsi%ld: %s: **** FAILED, cmd = %08X, "
 258                               "sts = %08X ****\n", ha->host_no, __func__,
 259                               mbx_cmd[0], mbx_sts[0]));
 260                 break;
 261         }
 262         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 263
 264 mbox_exit:
 265         mutex_lock(&ha->mbox_sem);
 266         clear_bit(AF_MBOX_COMMAND, &ha->flags);
 267         mutex_unlock(&ha->mbox_sem);
 268         clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
 269
 270         return status;
 271 }
 272
 273 /**
 274  * qla4xxx_get_minidump_template - Get the firmware template
 275  * @ha: Pointer to host adapter structure.
 276  * @phys_addr: dma address for template
 277  *
 278  * Obtain the minidump template from firmware during initialization
 279  * as it may not be available when minidump is desired.
 280  **/
 281 int qla4xxx_get_minidump_template(struct scsi_qla_host *ha,
 282                                   dma_addr_t phys_addr)
 283 {
 284         uint32_t mbox_cmd[MBOX_REG_COUNT];
 285         uint32_t mbox_sts[MBOX_REG_COUNT];
 286         int status;
 287
 288         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 289         memset(&mbox_sts, 0, sizeof(mbox_sts));
 290
 291         mbox_cmd[0] = MBOX_CMD_MINIDUMP;
 292         mbox_cmd[1] = MINIDUMP_GET_TMPLT_SUBCOMMAND;
 293         mbox_cmd[2] = LSDW(phys_addr);
 294         mbox_cmd[3] = MSDW(phys_addr);
 295         mbox_cmd[4] = ha->fw_dump_tmplt_size;
 296         mbox_cmd[5] = 0;
 297
 298         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
 299                                          &mbox_sts[0]);
 300         if (status != QLA_SUCCESS) {
 301                 DEBUG2(ql4_printk(KERN_INFO, ha,
 302                                   "scsi%ld: %s: Cmd = %08X, mbx[0] = 0x%04x, mbx[1] = 0x%04x\n",
 303                                   ha->host_no, __func__, mbox_cmd[0],
 304                                   mbox_sts[0], mbox_sts[1]));
 305         }
 306         return status;
 307 }
 308
 309 /**
 310  * qla4xxx_req_template_size - Get minidump template size from firmware.
 311  * @ha: Pointer to host adapter structure.
 312  **/
 313 int qla4xxx_req_template_size(struct scsi_qla_host *ha)
 314 {
 315         uint32_t mbox_cmd[MBOX_REG_COUNT];
 316         uint32_t mbox_sts[MBOX_REG_COUNT];
 317         int status;
 318
 319         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 320         memset(&mbox_sts, 0, sizeof(mbox_sts));
 321
 322         mbox_cmd[0] = MBOX_CMD_MINIDUMP;
 323         mbox_cmd[1] = MINIDUMP_GET_SIZE_SUBCOMMAND;
 324
 325         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 8, &mbox_cmd[0],
 326                                          &mbox_sts[0]);
 327         if (status == QLA_SUCCESS) {
 328                 ha->fw_dump_tmplt_size = mbox_sts[1];
 329                 DEBUG2(ql4_printk(KERN_INFO, ha,
 330                                   "%s: sts[0]=0x%04x, template  size=0x%04x, size_cm_02=0x%04x, size_cm_04=0x%04x, size_cm_08=0x%04x, size_cm_10=0x%04x, size_cm_FF=0x%04x, version=0x%04x\n",
 331                                   __func__, mbox_sts[0], mbox_sts[1],
 332                                   mbox_sts[2], mbox_sts[3], mbox_sts[4],
 333                                   mbox_sts[5], mbox_sts[6], mbox_sts[7]));
 334                 if (ha->fw_dump_tmplt_size == 0)
 335                         status = QLA_ERROR;
 336         } else {
 337                 ql4_printk(KERN_WARNING, ha,
 338                            "%s: Error sts[0]=0x%04x, mbx[1]=0x%04x\n",
 339                            __func__, mbox_sts[0], mbox_sts[1]);
 340                 status = QLA_ERROR;
 341         }
 342
 343         return status;
 344 }
 345
 346 void qla4xxx_mailbox_premature_completion(struct scsi_qla_host *ha)
 347 {
 348         set_bit(AF_FW_RECOVERY, &ha->flags);
 349         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: set FW RECOVERY!\n",
 350             ha->host_no, __func__);
 351
 352         if (test_bit(AF_MBOX_COMMAND, &ha->flags)) {
 353                 if (test_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags)) {
 354                         complete(&ha->mbx_intr_comp);
 355                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
 356                             "recovery, doing premature completion of "
 357                             "mbx cmd\n", ha->host_no, __func__);
 358
 359                 } else {
 360                         set_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
 361                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
 362                             "recovery, doing premature completion of "
 363                             "polling mbx cmd\n", ha->host_no, __func__);
 364                 }
 365         }
 366 }
 367
 368 static uint8_t
 369 qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
 370                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
 371 {
 372         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
 373         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
 374
 375         if (is_qla8022(ha))
 376                 qla4_8xxx_wr_32(ha, ha->nx_db_wr_ptr, 0);
 377
 378         mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE;
 379         mbox_cmd[1] = 0;
 380         mbox_cmd[2] = LSDW(init_fw_cb_dma);
 381         mbox_cmd[3] = MSDW(init_fw_cb_dma);
 382         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
 383         mbox_cmd[5] = (IFCB_VER_MAX << 8) | IFCB_VER_MIN;
 384
 385         if (qla4xxx_mailbox_command(ha, 6, 6, mbox_cmd, mbox_sts) !=
 386             QLA_SUCCESS) {
 387                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
 388                               "MBOX_CMD_INITIALIZE_FIRMWARE"
 389                               " failed w/ status %04X\n",
 390                               ha->host_no, __func__, mbox_sts[0]));
 391                 return QLA_ERROR;
 392         }
 393         return QLA_SUCCESS;
 394 }
 395
 396 uint8_t
 397 qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
 398                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
 399 {
 400         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
 401         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
 402         mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK;
 403         mbox_cmd[2] = LSDW(init_fw_cb_dma);
 404         mbox_cmd[3] = MSDW(init_fw_cb_dma);
 405         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
 406
 407         if (qla4xxx_mailbox_command(ha, 5, 5, mbox_cmd, mbox_sts) !=
 408             QLA_SUCCESS) {
 409                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
 410                               "MBOX_CMD_GET_INIT_FW_CTRL_BLOCK"
 411                               " failed w/ status %04X\n",
 412                               ha->host_no, __func__, mbox_sts[0]));
 413                 return QLA_ERROR;
 414         }
 415         return QLA_SUCCESS;
 416 }
 417
 418 static void
 419 qla4xxx_update_local_ip(struct scsi_qla_host *ha,
 420                         struct addr_ctrl_blk *init_fw_cb)
 421 {
 422         ha->ip_config.tcp_options = le16_to_cpu(init_fw_cb->ipv4_tcp_opts);
 423         ha->ip_config.ipv4_options = le16_to_cpu(init_fw_cb->ipv4_ip_opts);
 424         ha->ip_config.ipv4_addr_state =
 425                                 le16_to_cpu(init_fw_cb->ipv4_addr_state);
 426         ha->ip_config.eth_mtu_size =
 427                                 le16_to_cpu(init_fw_cb->eth_mtu_size);
 428         ha->ip_config.ipv4_port = le16_to_cpu(init_fw_cb->ipv4_port);
 429
 430         if (ha->acb_version == ACB_SUPPORTED) {
 431                 ha->ip_config.ipv6_options = le16_to_cpu(init_fw_cb->ipv6_opts);
 432                 ha->ip_config.ipv6_addl_options =
 433                                 le16_to_cpu(init_fw_cb->ipv6_addtl_opts);
 434         }
 435
 436         /* Save IPv4 Address Info */
 437         memcpy(ha->ip_config.ip_address, init_fw_cb->ipv4_addr,
 438                min(sizeof(ha->ip_config.ip_address),
 439                    sizeof(init_fw_cb->ipv4_addr)));
 440         memcpy(ha->ip_config.subnet_mask, init_fw_cb->ipv4_subnet,
 441                min(sizeof(ha->ip_config.subnet_mask),
 442                    sizeof(init_fw_cb->ipv4_subnet)));
 443         memcpy(ha->ip_config.gateway, init_fw_cb->ipv4_gw_addr,
 444                min(sizeof(ha->ip_config.gateway),
 445                    sizeof(init_fw_cb->ipv4_gw_addr)));
 446
 447         ha->ip_config.ipv4_vlan_tag = be16_to_cpu(init_fw_cb->ipv4_vlan_tag);
 448
 449         if (is_ipv6_enabled(ha)) {
 450                 /* Save IPv6 Address */
 451                 ha->ip_config.ipv6_link_local_state =
 452                         le16_to_cpu(init_fw_cb->ipv6_lnk_lcl_addr_state);
 453                 ha->ip_config.ipv6_addr0_state =
 454                                 le16_to_cpu(init_fw_cb->ipv6_addr0_state);
 455                 ha->ip_config.ipv6_addr1_state =
 456                                 le16_to_cpu(init_fw_cb->ipv6_addr1_state);
 457                 ha->ip_config.ipv6_default_router_state =
 458                                 le16_to_cpu(init_fw_cb->ipv6_dflt_rtr_state);
 459                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[0] = 0xFE;
 460                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[1] = 0x80;
 461
 462                 memcpy(&ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[8],
 463                        init_fw_cb->ipv6_if_id,
 464                        min(sizeof(ha->ip_config.ipv6_link_local_addr)/2,
 465                            sizeof(init_fw_cb->ipv6_if_id)));
 466                 memcpy(&ha->ip_config.ipv6_addr0, init_fw_cb->ipv6_addr0,
 467                        min(sizeof(ha->ip_config.ipv6_addr0),
 468                            sizeof(init_fw_cb->ipv6_addr0)));
 469                 memcpy(&ha->ip_config.ipv6_addr1, init_fw_cb->ipv6_addr1,
 470                        min(sizeof(ha->ip_config.ipv6_addr1),
 471                            sizeof(init_fw_cb->ipv6_addr1)));
 472                 memcpy(&ha->ip_config.ipv6_default_router_addr,
 473                        init_fw_cb->ipv6_dflt_rtr_addr,
 474                        min(sizeof(ha->ip_config.ipv6_default_router_addr),
 475                            sizeof(init_fw_cb->ipv6_dflt_rtr_addr)));
 476                 ha->ip_config.ipv6_vlan_tag =
 477                                 be16_to_cpu(init_fw_cb->ipv6_vlan_tag);
 478                 ha->ip_config.ipv6_port = le16_to_cpu(init_fw_cb->ipv6_port);
 479         }
 480 }
 481
 482 uint8_t
 483 qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
 484                           uint32_t *mbox_cmd,
 485                           uint32_t *mbox_sts,
 486                           struct addr_ctrl_blk  *init_fw_cb,
 487                           dma_addr_t init_fw_cb_dma)
 488 {
 489         if (qla4xxx_get_ifcb(ha, mbox_cmd, mbox_sts, init_fw_cb_dma)
 490             != QLA_SUCCESS) {
 491                 DEBUG2(printk(KERN_WARNING
 492                               "scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
 493                               ha->host_no, __func__));
 494                 return QLA_ERROR;
 495         }
 496
 497         DEBUG2(qla4xxx_dump_buffer(init_fw_cb, sizeof(struct addr_ctrl_blk)));
 498
 499         /* Save some info in adapter structure. */
 500         ha->acb_version = init_fw_cb->acb_version;
 501         ha->firmware_options = le16_to_cpu(init_fw_cb->fw_options);
 502         ha->heartbeat_interval = init_fw_cb->hb_interval;
 503         memcpy(ha->name_string, init_fw_cb->iscsi_name,
 504                 min(sizeof(ha->name_string),
 505                 sizeof(init_fw_cb->iscsi_name)));
 506         ha->def_timeout = le16_to_cpu(init_fw_cb->def_timeout);
 507         /*memcpy(ha->alias, init_fw_cb->Alias,
 508                min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/
 509
 510         qla4xxx_update_local_ip(ha, init_fw_cb);
 511
 512         return QLA_SUCCESS;
 513 }
 514
 515 /**
 516  * qla4xxx_initialize_fw_cb - initializes firmware control block.
 517  * @ha: Pointer to host adapter structure.
 518  **/
 519 int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
 520 {
 521         struct addr_ctrl_blk *init_fw_cb;
 522         dma_addr_t init_fw_cb_dma;
 523         uint32_t mbox_cmd[MBOX_REG_COUNT];
 524         uint32_t mbox_sts[MBOX_REG_COUNT];
 525         int status = QLA_ERROR;
 526
 527         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
 528                                         sizeof(struct addr_ctrl_blk),
 529                                         &init_fw_cb_dma, GFP_KERNEL);
 530         if (init_fw_cb == NULL) {
 531                 DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n",
 532                               ha->host_no, __func__));
 533                 goto exit_init_fw_cb_no_free;
 534         }
 535         memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
 536
 537         /* Get Initialize Firmware Control Block. */
 538         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 539         memset(&mbox_sts, 0, sizeof(mbox_sts));
 540
 541         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
 542             QLA_SUCCESS) {
 543                 dma_free_coherent(&ha->pdev->dev,
 544                                   sizeof(struct addr_ctrl_blk),
 545                                   init_fw_cb, init_fw_cb_dma);
 546                 goto exit_init_fw_cb;
 547         }
 548
 549         /* Initialize request and response queues. */
 550         qla4xxx_init_rings(ha);
 551
 552         /* Fill in the request and response queue information. */
 553         init_fw_cb->rqq_consumer_idx = cpu_to_le16(ha->request_out);
 554         init_fw_cb->compq_producer_idx = cpu_to_le16(ha->response_in);
 555         init_fw_cb->rqq_len = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH);
 556         init_fw_cb->compq_len = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH);
 557         init_fw_cb->rqq_addr_lo = cpu_to_le32(LSDW(ha->request_dma));
 558         init_fw_cb->rqq_addr_hi = cpu_to_le32(MSDW(ha->request_dma));
 559         init_fw_cb->compq_addr_lo = cpu_to_le32(LSDW(ha->response_dma));
 560         init_fw_cb->compq_addr_hi = cpu_to_le32(MSDW(ha->response_dma));
 561         init_fw_cb->shdwreg_addr_lo = cpu_to_le32(LSDW(ha->shadow_regs_dma));
 562         init_fw_cb->shdwreg_addr_hi = cpu_to_le32(MSDW(ha->shadow_regs_dma));
 563
 564         /* Set up required options. */
 565         init_fw_cb->fw_options |=
 566                 __constant_cpu_to_le16(FWOPT_SESSION_MODE |
 567                                        FWOPT_INITIATOR_MODE);
 568
 569         if (is_qla8022(ha))
 570                 init_fw_cb->fw_options |=
 571                     __constant_cpu_to_le16(FWOPT_ENABLE_CRBDB);
 572
 573         init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE);
 574
 575         init_fw_cb->add_fw_options = 0;
 576         init_fw_cb->add_fw_options |=
 577                         __constant_cpu_to_le16(ADFWOPT_SERIALIZE_TASK_MGMT);
 578         init_fw_cb->add_fw_options |=
 579                         __constant_cpu_to_le16(ADFWOPT_AUTOCONN_DISABLE);
 580
 581         if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)
 582                 != QLA_SUCCESS) {
 583                 DEBUG2(printk(KERN_WARNING
 584                               "scsi%ld: %s: Failed to set init_fw_ctrl_blk\n",
 585                               ha->host_no, __func__));
 586                 goto exit_init_fw_cb;
 587         }
 588
 589         if (qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0],
 590                 init_fw_cb, init_fw_cb_dma) != QLA_SUCCESS) {
 591                 DEBUG2(printk("scsi%ld: %s: Failed to update local ifcb\n",
 592                                 ha->host_no, __func__));
 593                 goto exit_init_fw_cb;
 594         }
 595         status = QLA_SUCCESS;
 596
 597 exit_init_fw_cb:
 598         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
 599                                 init_fw_cb, init_fw_cb_dma);
 600 exit_init_fw_cb_no_free:
 601         return status;
 602 }
 603
 604 /**
 605  * qla4xxx_get_dhcp_ip_address - gets HBA ip address via DHCP
 606  * @ha: Pointer to host adapter structure.
 607  **/
 608 int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
 609 {
 610         struct addr_ctrl_blk *init_fw_cb;
 611         dma_addr_t init_fw_cb_dma;
 612         uint32_t mbox_cmd[MBOX_REG_COUNT];
 613         uint32_t mbox_sts[MBOX_REG_COUNT];
 614
 615         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
 616                                         sizeof(struct addr_ctrl_blk),
 617                                         &init_fw_cb_dma, GFP_KERNEL);
 618         if (init_fw_cb == NULL) {
 619                 printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no,
 620                        __func__);
 621                 return QLA_ERROR;
 622         }
 623
 624         /* Get Initialize Firmware Control Block. */
 625         memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
 626         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
 627             QLA_SUCCESS) {
 628                 DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
 629                               ha->host_no, __func__));
 630                 dma_free_coherent(&ha->pdev->dev,
 631                                   sizeof(struct addr_ctrl_blk),
 632                                   init_fw_cb, init_fw_cb_dma);
 633                 return QLA_ERROR;
 634         }
 635
 636         /* Save IP Address. */
 637         qla4xxx_update_local_ip(ha, init_fw_cb);
 638         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
 639                                 init_fw_cb, init_fw_cb_dma);
 640
 641         return QLA_SUCCESS;
 642 }
 643
 644 /**
 645  * qla4xxx_get_firmware_state - gets firmware state of HBA
 646  * @ha: Pointer to host adapter structure.
 647  **/
 648 int qla4xxx_get_firmware_state(struct scsi_qla_host * ha)
 649 {
 650         uint32_t mbox_cmd[MBOX_REG_COUNT];
 651         uint32_t mbox_sts[MBOX_REG_COUNT];
 652
 653         /* Get firmware version */
 654         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 655         memset(&mbox_sts, 0, sizeof(mbox_sts));
 656
 657         mbox_cmd[0] = MBOX_CMD_GET_FW_STATE;
 658
 659         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 4, &mbox_cmd[0], &mbox_sts[0]) !=
 660             QLA_SUCCESS) {
 661                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ "
 662                               "status %04X\n", ha->host_no, __func__,
 663                               mbox_sts[0]));
 664                 return QLA_ERROR;
 665         }
 666         ha->firmware_state = mbox_sts[1];
 667         ha->board_id = mbox_sts[2];
 668         ha->addl_fw_state = mbox_sts[3];
 669         DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n",
 670                       ha->host_no, __func__, ha->firmware_state);)
 671
 672         return QLA_SUCCESS;
 673 }
 674
 675 /**
 676  * qla4xxx_get_firmware_status - retrieves firmware status
 677  * @ha: Pointer to host adapter structure.
 678  **/
 679 int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
 680 {
 681         uint32_t mbox_cmd[MBOX_REG_COUNT];
 682         uint32_t mbox_sts[MBOX_REG_COUNT];
 683
 684         /* Get firmware version */
 685         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 686         memset(&mbox_sts, 0, sizeof(mbox_sts));
 687
 688         mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS;
 689
 690         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) !=
 691             QLA_SUCCESS) {
 692                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ "
 693                               "status %04X\n", ha->host_no, __func__,
 694                               mbox_sts[0]));
 695                 return QLA_ERROR;
 696         }
 697
 698         ql4_printk(KERN_INFO, ha, "%ld firmware IOCBs available (%d).\n",
 699             ha->host_no, mbox_sts[2]);
 700
 701         return QLA_SUCCESS;
 702 }
 703
 704 /**
 705  * qla4xxx_get_fwddb_entry - retrieves firmware ddb entry
 706  * @ha: Pointer to host adapter structure.
 707  * @fw_ddb_index: Firmware's device database index
 708  * @fw_ddb_entry: Pointer to firmware's device database entry structure
 709  * @num_valid_ddb_entries: Pointer to number of valid ddb entries
 710  * @next_ddb_index: Pointer to next valid device database index
 711  * @fw_ddb_device_state: Pointer to device state
 712  **/
 713 int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha,
 714                             uint16_t fw_ddb_index,
 715                             struct dev_db_entry *fw_ddb_entry,
 716                             dma_addr_t fw_ddb_entry_dma,
 717                             uint32_t *num_valid_ddb_entries,
 718                             uint32_t *next_ddb_index,
 719                             uint32_t *fw_ddb_device_state,
 720                             uint32_t *conn_err_detail,
 721                             uint16_t *tcp_source_port_num,
 722                             uint16_t *connection_id)
 723 {
 724         int status = QLA_ERROR;
 725         uint16_t options;
 726         uint32_t mbox_cmd[MBOX_REG_COUNT];
 727         uint32_t mbox_sts[MBOX_REG_COUNT];
 728
 729         /* Make sure the device index is valid */
 730         if (fw_ddb_index >= MAX_DDB_ENTRIES) {
 731                 DEBUG2(printk("scsi%ld: %s: ddb [%d] out of range.\n",
 732                               ha->host_no, __func__, fw_ddb_index));
 733                 goto exit_get_fwddb;
 734         }
 735         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 736         memset(&mbox_sts, 0, sizeof(mbox_sts));
 737         if (fw_ddb_entry)
 738                 memset(fw_ddb_entry, 0, sizeof(struct dev_db_entry));
 739
 740         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY;
 741         mbox_cmd[1] = (uint32_t) fw_ddb_index;
 742         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
 743         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
 744         mbox_cmd[4] = sizeof(struct dev_db_entry);
 745
 746         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 7, &mbox_cmd[0], &mbox_sts[0]) ==
 747             QLA_ERROR) {
 748                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed"
 749                               " with status 0x%04X\n", ha->host_no, __func__,
 750                               mbox_sts[0]));
 751                 goto exit_get_fwddb;
 752         }
 753         if (fw_ddb_index != mbox_sts[1]) {
 754                 DEBUG2(printk("scsi%ld: %s: ddb mismatch [%d] != [%d].\n",
 755                               ha->host_no, __func__, fw_ddb_index,
 756                               mbox_sts[1]));
 757                 goto exit_get_fwddb;
 758         }
 759         if (fw_ddb_entry) {
 760                 options = le16_to_cpu(fw_ddb_entry->options);
 761                 if (options & DDB_OPT_IPV6_DEVICE) {
 762                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
 763                                 "Next %d State %04x ConnErr %08x %pI6 "
 764                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
 765                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
 766                                 mbox_sts[4], mbox_sts[5],
 767                                 fw_ddb_entry->ip_addr,
 768                                 le16_to_cpu(fw_ddb_entry->port),
 769                                 fw_ddb_entry->iscsi_name);
 770                 } else {
 771                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
 772                                 "Next %d State %04x ConnErr %08x %pI4 "
 773                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
 774                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
 775                                 mbox_sts[4], mbox_sts[5],
 776                                 fw_ddb_entry->ip_addr,
 777                                 le16_to_cpu(fw_ddb_entry->port),
 778                                 fw_ddb_entry->iscsi_name);
 779                 }
 780         }
 781         if (num_valid_ddb_entries)
 782                 *num_valid_ddb_entries = mbox_sts[2];
 783         if (next_ddb_index)
 784                 *next_ddb_index = mbox_sts[3];
 785         if (fw_ddb_device_state)
 786                 *fw_ddb_device_state = mbox_sts[4];
 787
 788         /*
 789          * RA: This mailbox has been changed to pass connection error and
 790          * details.  Its true for ISP4010 as per Version E - Not sure when it
 791          * was changed.  Get the time2wait from the fw_dd_entry field :
 792          * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY
 793          * struct.
 794          */
 795         if (conn_err_detail)
 796                 *conn_err_detail = mbox_sts[5];
 797         if (tcp_source_port_num)
 798                 *tcp_source_port_num = (uint16_t) (mbox_sts[6] >> 16);
 799         if (connection_id)
 800                 *connection_id = (uint16_t) mbox_sts[6] & 0x00FF;
 801         status = QLA_SUCCESS;
 802
 803 exit_get_fwddb:
 804         return status;
 805 }
 806
 807 int qla4xxx_conn_open(struct scsi_qla_host *ha, uint16_t fw_ddb_index)
 808 {
 809         uint32_t mbox_cmd[MBOX_REG_COUNT];
 810         uint32_t mbox_sts[MBOX_REG_COUNT];
 811         int status;
 812
 813         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 814         memset(&mbox_sts, 0, sizeof(mbox_sts));
 815
 816         mbox_cmd[0] = MBOX_CMD_CONN_OPEN;
 817         mbox_cmd[1] = fw_ddb_index;
 818
 819         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
 820                                          &mbox_sts[0]);
 821         DEBUG2(ql4_printk(KERN_INFO, ha,
 822                           "%s: status = %d mbx0 = 0x%x mbx1 = 0x%x\n",
 823                           __func__, status, mbox_sts[0], mbox_sts[1]));
 824         return status;
 825 }
 826
 827 /**
 828  * qla4xxx_set_fwddb_entry - sets a ddb entry.
 829  * @ha: Pointer to host adapter structure.
 830  * @fw_ddb_index: Firmware's device database index
 831  * @fw_ddb_entry_dma: dma address of ddb entry
 832  * @mbx_sts: mailbox 0 to be returned or NULL
 833  *
 834  * This routine initializes or updates the adapter's device database
 835  * entry for the specified device.
 836  **/
 837 int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index,
 838                           dma_addr_t fw_ddb_entry_dma, uint32_t *mbx_sts)
 839 {
 840         uint32_t mbox_cmd[MBOX_REG_COUNT];
 841         uint32_t mbox_sts[MBOX_REG_COUNT];
 842         int status;
 843
 844         /* Do not wait for completion. The firmware will send us an
 845          * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status.
 846          */
 847         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 848         memset(&mbox_sts, 0, sizeof(mbox_sts));
 849
 850         mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY;
 851         mbox_cmd[1] = (uint32_t) fw_ddb_index;
 852         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
 853         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
 854         mbox_cmd[4] = sizeof(struct dev_db_entry);
 855
 856         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
 857                                          &mbox_sts[0]);
 858         if (mbx_sts)
 859                 *mbx_sts = mbox_sts[0];
 860         DEBUG2(printk("scsi%ld: %s: status=%d mbx0=0x%x mbx4=0x%x\n",
 861             ha->host_no, __func__, status, mbox_sts[0], mbox_sts[4]);)
 862
 863         return status;
 864 }
 865
 866 int qla4xxx_session_logout_ddb(struct scsi_qla_host *ha,
 867                                struct ddb_entry *ddb_entry, int options)
 868 {
 869         int status;
 870         uint32_t mbox_cmd[MBOX_REG_COUNT];
 871         uint32_t mbox_sts[MBOX_REG_COUNT];
 872
 873         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 874         memset(&mbox_sts, 0, sizeof(mbox_sts));
 875
 876         mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
 877         mbox_cmd[1] = ddb_entry->fw_ddb_index;
 878         mbox_cmd[3] = options;
 879
 880         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
 881                                          &mbox_sts[0]);
 882         if (status != QLA_SUCCESS) {
 883                 DEBUG2(ql4_printk(KERN_INFO, ha,
 884                                   "%s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT "
 885                                   "failed sts %04X %04X", __func__,
 886                                   mbox_sts[0], mbox_sts[1]));
 887         }
 888
 889         return status;
 890 }
 891
 892 /**
 893  * qla4xxx_get_crash_record - retrieves crash record.
 894  * @ha: Pointer to host adapter structure.
 895  *
 896  * This routine retrieves a crash record from the QLA4010 after an 8002h aen.
 897  **/
 898 void qla4xxx_get_crash_record(struct scsi_qla_host * ha)
 899 {
 900         uint32_t mbox_cmd[MBOX_REG_COUNT];
 901         uint32_t mbox_sts[MBOX_REG_COUNT];
 902         struct crash_record *crash_record = NULL;
 903         dma_addr_t crash_record_dma = 0;
 904         uint32_t crash_record_size = 0;
 905
 906         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 907         memset(&mbox_sts, 0, sizeof(mbox_cmd));
 908
 909         /* Get size of crash record. */
 910         mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
 911
 912         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
 913             QLA_SUCCESS) {
 914                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n",
 915                               ha->host_no, __func__));
 916                 goto exit_get_crash_record;
 917         }
 918         crash_record_size = mbox_sts[4];
 919         if (crash_record_size == 0) {
 920                 DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n",
 921                               ha->host_no, __func__));
 922                 goto exit_get_crash_record;
 923         }
 924
 925         /* Alloc Memory for Crash Record. */
 926         crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size,
 927                                           &crash_record_dma, GFP_KERNEL);
 928         if (crash_record == NULL)
 929                 goto exit_get_crash_record;
 930
 931         /* Get Crash Record. */
 932         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 933         memset(&mbox_sts, 0, sizeof(mbox_cmd));
 934
 935         mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
 936         mbox_cmd[2] = LSDW(crash_record_dma);
 937         mbox_cmd[3] = MSDW(crash_record_dma);
 938         mbox_cmd[4] = crash_record_size;
 939
 940         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
 941             QLA_SUCCESS)
 942                 goto exit_get_crash_record;
 943
 944         /* Dump Crash Record. */
 945
 946 exit_get_crash_record:
 947         if (crash_record)
 948                 dma_free_coherent(&ha->pdev->dev, crash_record_size,
 949                                   crash_record, crash_record_dma);
 950 }
 951
 952 /**
 953  * qla4xxx_get_conn_event_log - retrieves connection event log
 954  * @ha: Pointer to host adapter structure.
 955  **/
 956 void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)
 957 {
 958         uint32_t mbox_cmd[MBOX_REG_COUNT];
 959         uint32_t mbox_sts[MBOX_REG_COUNT];
 960         struct conn_event_log_entry *event_log = NULL;
 961         dma_addr_t event_log_dma = 0;
 962         uint32_t event_log_size = 0;
 963         uint32_t num_valid_entries;
 964         uint32_t      oldest_entry = 0;
 965         uint32_t        max_event_log_entries;
 966         uint8_t         i;
 967
 968         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 969         memset(&mbox_sts, 0, sizeof(mbox_cmd));
 970
 971         /* Get size of crash record. */
 972         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
 973
 974         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
 975             QLA_SUCCESS)
 976                 goto exit_get_event_log;
 977
 978         event_log_size = mbox_sts[4];
 979         if (event_log_size == 0)
 980                 goto exit_get_event_log;
 981
 982         /* Alloc Memory for Crash Record. */
 983         event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size,
 984                                        &event_log_dma, GFP_KERNEL);
 985         if (event_log == NULL)
 986                 goto exit_get_event_log;
 987
 988         /* Get Crash Record. */
 989         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 990         memset(&mbox_sts, 0, sizeof(mbox_cmd));
 991
 992         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
 993         mbox_cmd[2] = LSDW(event_log_dma);
 994         mbox_cmd[3] = MSDW(event_log_dma);
 995
 996         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
 997             QLA_SUCCESS) {
 998                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event "
 999                               "log!\n", ha->host_no, __func__));
1000                 goto exit_get_event_log;
1001         }
1002
1003         /* Dump Event Log. */
1004         num_valid_entries = mbox_sts[1];
1005
1006         max_event_log_entries = event_log_size /
1007                 sizeof(struct conn_event_log_entry);
1008
1009         if (num_valid_entries > max_event_log_entries)
1010                 oldest_entry = num_valid_entries % max_event_log_entries;
1011
1012         DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n",
1013                       ha->host_no, num_valid_entries));
1014
1015         if (ql4xextended_error_logging == 3) {
1016                 if (oldest_entry == 0) {
1017                         /* Circular Buffer has not wrapped around */
1018                         for (i=0; i < num_valid_entries; i++) {
1019                                 qla4xxx_dump_buffer((uint8_t *)event_log+
1020                                                     (i*sizeof(*event_log)),
1021                                                     sizeof(*event_log));
1022                         }
1023                 }
1024                 else {
1025                         /* Circular Buffer has wrapped around -
1026                          * display accordingly*/
1027                         for (i=oldest_entry; i < max_event_log_entries; i++) {
1028                                 qla4xxx_dump_buffer((uint8_t *)event_log+
1029                                                     (i*sizeof(*event_log)),
1030                                                     sizeof(*event_log));
1031                         }
1032                         for (i=0; i < oldest_entry; i++) {
1033                                 qla4xxx_dump_buffer((uint8_t *)event_log+
1034                                                     (i*sizeof(*event_log)),
1035                                                     sizeof(*event_log));
1036                         }
1037                 }
1038         }
1039
1040 exit_get_event_log:
1041         if (event_log)
1042                 dma_free_coherent(&ha->pdev->dev, event_log_size, event_log,
1043                                   event_log_dma);
1044 }
1045
1046 /**
1047  * qla4xxx_abort_task - issues Abort Task
1048  * @ha: Pointer to host adapter structure.
1049  * @srb: Pointer to srb entry
1050  *
1051  * This routine performs a LUN RESET on the specified target/lun.
1052  * The caller must ensure that the ddb_entry and lun_entry pointers
1053  * are valid before calling this routine.
1054  **/
1055 int qla4xxx_abort_task(struct scsi_qla_host *ha, struct srb *srb)
1056 {
1057         uint32_t mbox_cmd[MBOX_REG_COUNT];
1058         uint32_t mbox_sts[MBOX_REG_COUNT];
1059         struct scsi_cmnd *cmd = srb->cmd;
1060         int status = QLA_SUCCESS;
1061         unsigned long flags = 0;
1062         uint32_t index;
1063
1064         /*
1065          * Send abort task command to ISP, so that the ISP will return
1066          * request with ABORT status
1067          */
1068         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1069         memset(&mbox_sts, 0, sizeof(mbox_sts));
1070
1071         spin_lock_irqsave(&ha->hardware_lock, flags);
1072         index = (unsigned long)(unsigned char *)cmd->host_scribble;
1073         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1074
1075         /* Firmware already posted completion on response queue */
1076         if (index == MAX_SRBS)
1077                 return status;
1078
1079         mbox_cmd[0] = MBOX_CMD_ABORT_TASK;
1080         mbox_cmd[1] = srb->ddb->fw_ddb_index;
1081         mbox_cmd[2] = index;
1082         /* Immediate Command Enable */
1083         mbox_cmd[5] = 0x01;
1084
1085         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
1086             &mbox_sts[0]);
1087         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE) {
1088                 status = QLA_ERROR;
1089
1090                 DEBUG2(printk(KERN_WARNING "scsi%ld:%d:%d: abort task FAILED: "
1091                     "mbx0=%04X, mb1=%04X, mb2=%04X, mb3=%04X, mb4=%04X\n",
1092                     ha->host_no, cmd->device->id, cmd->device->lun, mbox_sts[0],
1093                     mbox_sts[1], mbox_sts[2], mbox_sts[3], mbox_sts[4]));
1094         }
1095
1096         return status;
1097 }
1098
1099 /**
1100  * qla4xxx_reset_lun - issues LUN Reset
1101  * @ha: Pointer to host adapter structure.
1102  * @ddb_entry: Pointer to device database entry
1103  * @lun: lun number
1104  *
1105  * This routine performs a LUN RESET on the specified target/lun.
1106  * The caller must ensure that the ddb_entry and lun_entry pointers
1107  * are valid before calling this routine.
1108  **/
1109 int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
1110                       int lun)
1111 {
1112         uint32_t mbox_cmd[MBOX_REG_COUNT];
1113         uint32_t mbox_sts[MBOX_REG_COUNT];
1114         int status = QLA_SUCCESS;
1115
1116         DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no,
1117                       ddb_entry->fw_ddb_index, lun));
1118
1119         /*
1120          * Send lun reset command to ISP, so that the ISP will return all
1121          * outstanding requests with RESET status
1122          */
1123         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1124         memset(&mbox_sts, 0, sizeof(mbox_sts));
1125
1126         mbox_cmd[0] = MBOX_CMD_LUN_RESET;
1127         mbox_cmd[1] = ddb_entry->fw_ddb_index;
1128         mbox_cmd[2] = lun << 8;
1129         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
1130
1131         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]);
1132         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1133             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1134                 status = QLA_ERROR;
1135
1136         return status;
1137 }
1138
1139 /**
1140  * qla4xxx_reset_target - issues target Reset
1141  * @ha: Pointer to host adapter structure.
1142  * @db_entry: Pointer to device database entry
1143  * @un_entry: Pointer to lun entry structure
1144  *
1145  * This routine performs a TARGET RESET on the specified target.
1146  * The caller must ensure that the ddb_entry pointers
1147  * are valid before calling this routine.
1148  **/
1149 int qla4xxx_reset_target(struct scsi_qla_host *ha,
1150                          struct ddb_entry *ddb_entry)
1151 {
1152         uint32_t mbox_cmd[MBOX_REG_COUNT];
1153         uint32_t mbox_sts[MBOX_REG_COUNT];
1154         int status = QLA_SUCCESS;
1155
1156         DEBUG2(printk("scsi%ld:%d: target reset issued\n", ha->host_no,
1157                       ddb_entry->fw_ddb_index));
1158
1159         /*
1160          * Send target reset command to ISP, so that the ISP will return all
1161          * outstanding requests with RESET status
1162          */
1163         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1164         memset(&mbox_sts, 0, sizeof(mbox_sts));
1165
1166         mbox_cmd[0] = MBOX_CMD_TARGET_WARM_RESET;
1167         mbox_cmd[1] = ddb_entry->fw_ddb_index;
1168         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
1169
1170         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1171                                 &mbox_sts[0]);
1172         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1173             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1174                 status = QLA_ERROR;
1175
1176         return status;
1177 }
1178
1179 int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr,
1180                       uint32_t offset, uint32_t len)
1181 {
1182         uint32_t mbox_cmd[MBOX_REG_COUNT];
1183         uint32_t mbox_sts[MBOX_REG_COUNT];
1184
1185         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1186         memset(&mbox_sts, 0, sizeof(mbox_sts));
1187
1188         mbox_cmd[0] = MBOX_CMD_READ_FLASH;
1189         mbox_cmd[1] = LSDW(dma_addr);
1190         mbox_cmd[2] = MSDW(dma_addr);
1191         mbox_cmd[3] = offset;
1192         mbox_cmd[4] = len;
1193
1194         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], &mbox_sts[0]) !=
1195             QLA_SUCCESS) {
1196                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ "
1197                     "status %04X %04X, offset %08x, len %08x\n", ha->host_no,
1198                     __func__, mbox_sts[0], mbox_sts[1], offset, len));
1199                 return QLA_ERROR;
1200         }
1201         return QLA_SUCCESS;
1202 }
1203
1204 /**
1205  * qla4xxx_about_firmware - gets FW, iscsi draft and boot loader version
1206  * @ha: Pointer to host adapter structure.
1207  *
1208  * Retrieves the FW version, iSCSI draft version & bootloader version of HBA.
1209  * Mailboxes 2 & 3 may hold an address for data. Make sure that we write 0 to
1210  * those mailboxes, if unused.
1211  **/
1212 int qla4xxx_about_firmware(struct scsi_qla_host *ha)
1213 {
1214         struct about_fw_info *about_fw = NULL;
1215         dma_addr_t about_fw_dma;
1216         uint32_t mbox_cmd[MBOX_REG_COUNT];
1217         uint32_t mbox_sts[MBOX_REG_COUNT];
1218         int status = QLA_ERROR;
1219
1220         about_fw = dma_alloc_coherent(&ha->pdev->dev,
1221                                       sizeof(struct about_fw_info),
1222                                       &about_fw_dma, GFP_KERNEL);
1223         if (!about_fw) {
1224                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to alloc memory "
1225                                   "for about_fw\n", __func__));
1226                 return status;
1227         }
1228
1229         memset(about_fw, 0, sizeof(struct about_fw_info));
1230         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1231         memset(&mbox_sts, 0, sizeof(mbox_sts));
1232
1233         mbox_cmd[0] = MBOX_CMD_ABOUT_FW;
1234         mbox_cmd[2] = LSDW(about_fw_dma);
1235         mbox_cmd[3] = MSDW(about_fw_dma);
1236         mbox_cmd[4] = sizeof(struct about_fw_info);
1237
1238         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
1239                                          &mbox_cmd[0], &mbox_sts[0]);
1240         if (status != QLA_SUCCESS) {
1241                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_ABOUT_FW "
1242                                   "failed w/ status %04X\n", __func__,
1243                                   mbox_sts[0]));
1244                 goto exit_about_fw;
1245         }
1246
1247         /* Save version information. */
1248         ha->firmware_version[0] = le16_to_cpu(about_fw->fw_major);
1249         ha->firmware_version[1] = le16_to_cpu(about_fw->fw_minor);
1250         ha->patch_number = le16_to_cpu(about_fw->fw_patch);
1251         ha->build_number = le16_to_cpu(about_fw->fw_build);
1252         ha->iscsi_major = le16_to_cpu(about_fw->iscsi_major);
1253         ha->iscsi_minor = le16_to_cpu(about_fw->iscsi_minor);
1254         ha->bootload_major = le16_to_cpu(about_fw->bootload_major);
1255         ha->bootload_minor = le16_to_cpu(about_fw->bootload_minor);
1256         ha->bootload_patch = le16_to_cpu(about_fw->bootload_patch);
1257         ha->bootload_build = le16_to_cpu(about_fw->bootload_build);
1258         status = QLA_SUCCESS;
1259
1260 exit_about_fw:
1261         dma_free_coherent(&ha->pdev->dev, sizeof(struct about_fw_info),
1262                           about_fw, about_fw_dma);
1263         return status;
1264 }
1265
1266 static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, uint32_t options,
1267                                    dma_addr_t dma_addr)
1268 {
1269         uint32_t mbox_cmd[MBOX_REG_COUNT];
1270         uint32_t mbox_sts[MBOX_REG_COUNT];
1271
1272         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1273         memset(&mbox_sts, 0, sizeof(mbox_sts));
1274
1275         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS;
1276         mbox_cmd[1] = options;
1277         mbox_cmd[2] = LSDW(dma_addr);
1278         mbox_cmd[3] = MSDW(dma_addr);
1279
1280         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) !=
1281             QLA_SUCCESS) {
1282                 DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
1283                      ha->host_no, __func__, mbox_sts[0]));
1284                 return QLA_ERROR;
1285         }
1286         return QLA_SUCCESS;
1287 }
1288
1289 int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index,
1290                           uint32_t *mbx_sts)
1291 {
1292         int status;
1293         uint32_t mbox_cmd[MBOX_REG_COUNT];
1294         uint32_t mbox_sts[MBOX_REG_COUNT];
1295
1296         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1297         memset(&mbox_sts, 0, sizeof(mbox_sts));
1298
1299         mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY;
1300         mbox_cmd[1] = ddb_index;
1301
1302         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1303                                          &mbox_sts[0]);
1304         if (status != QLA_SUCCESS) {
1305                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1306                                    __func__, mbox_sts[0]));
1307         }
1308
1309         *mbx_sts = mbox_sts[0];
1310         return status;
1311 }
1312
1313 int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index)
1314 {
1315         int status;
1316         uint32_t mbox_cmd[MBOX_REG_COUNT];
1317         uint32_t mbox_sts[MBOX_REG_COUNT];
1318
1319         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1320         memset(&mbox_sts, 0, sizeof(mbox_sts));
1321
1322         mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY;
1323         mbox_cmd[1] = ddb_index;
1324
1325         status = qla4xxx_mailbox_command(ha, 2, 1, &mbox_cmd[0],
1326                                          &mbox_sts[0]);
1327         if (status != QLA_SUCCESS) {
1328                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1329                                    __func__, mbox_sts[0]));
1330         }
1331
1332         return status;
1333 }
1334
1335 int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr,
1336                       uint32_t offset, uint32_t length, uint32_t options)
1337 {
1338         uint32_t mbox_cmd[MBOX_REG_COUNT];
1339         uint32_t mbox_sts[MBOX_REG_COUNT];
1340         int status = QLA_SUCCESS;
1341
1342         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1343         memset(&mbox_sts, 0, sizeof(mbox_sts));
1344
1345         mbox_cmd[0] = MBOX_CMD_WRITE_FLASH;
1346         mbox_cmd[1] = LSDW(dma_addr);
1347         mbox_cmd[2] = MSDW(dma_addr);
1348         mbox_cmd[3] = offset;
1349         mbox_cmd[4] = length;
1350         mbox_cmd[5] = options;
1351
1352         status = qla4xxx_mailbox_command(ha, 6, 2, &mbox_cmd[0], &mbox_sts[0]);
1353         if (status != QLA_SUCCESS) {
1354                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_WRITE_FLASH "
1355                                   "failed w/ status %04X, mbx1 %04X\n",
1356                                   __func__, mbox_sts[0], mbox_sts[1]));
1357         }
1358         return status;
1359 }
1360
1361 int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha,
1362                             struct dev_db_entry *fw_ddb_entry,
1363                             dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
1364 {
1365         uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
1366         uint32_t dev_db_end_offset;
1367         int status = QLA_ERROR;
1368
1369         memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1370
1371         dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
1372         dev_db_end_offset = FLASH_OFFSET_DB_END;
1373
1374         if (dev_db_start_offset > dev_db_end_offset) {
1375                 DEBUG2(ql4_printk(KERN_ERR, ha,
1376                                   "%s:Invalid DDB index %d", __func__,
1377                                   ddb_index));
1378                 goto exit_bootdb_failed;
1379         }
1380
1381         if (qla4xxx_get_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
1382                               sizeof(*fw_ddb_entry)) != QLA_SUCCESS) {
1383                 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
1384                            "failed\n", ha->host_no, __func__);
1385                 goto exit_bootdb_failed;
1386         }
1387
1388         if (fw_ddb_entry->cookie == DDB_VALID_COOKIE)
1389                 status = QLA_SUCCESS;
1390
1391 exit_bootdb_failed:
1392         return status;
1393 }
1394
1395 int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username, char *password,
1396                      uint16_t idx)
1397 {
1398         int ret = 0;
1399         int rval = QLA_ERROR;
1400         uint32_t offset = 0, chap_size;
1401         struct ql4_chap_table *chap_table;
1402         dma_addr_t chap_dma;
1403
1404         chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1405         if (chap_table == NULL) {
1406                 ret = -ENOMEM;
1407                 goto exit_get_chap;
1408         }
1409
1410         chap_size = sizeof(struct ql4_chap_table);
1411         memset(chap_table, 0, chap_size);
1412
1413         if (is_qla40XX(ha))
1414                 offset = FLASH_CHAP_OFFSET | (idx * chap_size);
1415         else {
1416                 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
1417                 /* flt_chap_size is CHAP table size for both ports
1418                  * so divide it by 2 to calculate the offset for second port
1419                  */
1420                 if (ha->port_num == 1)
1421                         offset += (ha->hw.flt_chap_size / 2);
1422                 offset += (idx * chap_size);
1423         }
1424
1425         rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
1426         if (rval != QLA_SUCCESS) {
1427                 ret = -EINVAL;
1428                 goto exit_get_chap;
1429         }
1430
1431         DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
1432                 __le16_to_cpu(chap_table->cookie)));
1433
1434         if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
1435                 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
1436                 goto exit_get_chap;
1437         }
1438
1439         strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
1440         strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
1441         chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
1442
1443 exit_get_chap:
1444         dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1445         return ret;
1446 }
1447
1448 static int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username,
1449                             char *password, uint16_t idx, int bidi)
1450 {
1451         int ret = 0;
1452         int rval = QLA_ERROR;
1453         uint32_t offset = 0;
1454         struct ql4_chap_table *chap_table;
1455         dma_addr_t chap_dma;
1456
1457         chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1458         if (chap_table == NULL) {
1459                 ret =  -ENOMEM;
1460                 goto exit_set_chap;
1461         }
1462
1463         memset(chap_table, 0, sizeof(struct ql4_chap_table));
1464         if (bidi)
1465                 chap_table->flags |= BIT_6; /* peer */
1466         else
1467                 chap_table->flags |= BIT_7; /* local */
1468         chap_table->secret_len = strlen(password);
1469         strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN);
1470         strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN);
1471         chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
1472         offset = FLASH_CHAP_OFFSET | (idx * sizeof(struct ql4_chap_table));
1473         rval = qla4xxx_set_flash(ha, chap_dma, offset,
1474                                 sizeof(struct ql4_chap_table),
1475                                 FLASH_OPT_RMW_COMMIT);
1476
1477         if (rval == QLA_SUCCESS && ha->chap_list) {
1478                 /* Update ha chap_list cache */
1479                 memcpy((struct ql4_chap_table *)ha->chap_list + idx,
1480                        chap_table, sizeof(struct ql4_chap_table));
1481         }
1482         dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1483         if (rval != QLA_SUCCESS)
1484                 ret =  -EINVAL;
1485
1486 exit_set_chap:
1487         return ret;
1488 }
1489
1490 /**
1491  * qla4xxx_get_chap_index - Get chap index given username and secret
1492  * @ha: pointer to adapter structure
1493  * @username: CHAP username to be searched
1494  * @password: CHAP password to be searched
1495  * @bidi: Is this a BIDI CHAP
1496  * @chap_index: CHAP index to be returned
1497  *
1498  * Match the username and password in the chap_list, return the index if a
1499  * match is found. If a match is not found then add the entry in FLASH and
1500  * return the index at which entry is written in the FLASH.
1501  **/
1502 int qla4xxx_get_chap_index(struct scsi_qla_host *ha, char *username,
1503                            char *password, int bidi, uint16_t *chap_index)
1504 {
1505         int i, rval;
1506         int free_index = -1;
1507         int found_index = 0;
1508         int max_chap_entries = 0;
1509         struct ql4_chap_table *chap_table;
1510
1511         if (is_qla8022(ha))
1512                 max_chap_entries = (ha->hw.flt_chap_size / 2) /
1513                                                 sizeof(struct ql4_chap_table);
1514         else
1515                 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1516
1517         if (!ha->chap_list) {
1518                 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
1519                 return QLA_ERROR;
1520         }
1521
1522         if (!username || !password) {
1523                 ql4_printk(KERN_ERR, ha, "Do not have username and psw\n");
1524                 return QLA_ERROR;
1525         }
1526
1527         mutex_lock(&ha->chap_sem);
1528         for (i = 0; i < max_chap_entries; i++) {
1529                 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
1530                 if (chap_table->cookie !=
1531                     __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
1532                         if (i > MAX_RESRV_CHAP_IDX && free_index == -1)
1533                                 free_index = i;
1534                         continue;
1535                 }
1536                 if (bidi) {
1537                         if (chap_table->flags & BIT_7)
1538                                 continue;
1539                 } else {
1540                         if (chap_table->flags & BIT_6)
1541                                 continue;
1542                 }
1543                 if (!strncmp(chap_table->secret, password,
1544                              MAX_CHAP_SECRET_LEN) &&
1545                     !strncmp(chap_table->name, username,
1546                              MAX_CHAP_NAME_LEN)) {
1547                         *chap_index = i;
1548                         found_index = 1;
1549                         break;
1550                 }
1551         }
1552
1553         /* If chap entry is not present and a free index is available then
1554          * write the entry in flash
1555          */
1556         if (!found_index && free_index != -1) {
1557                 rval = qla4xxx_set_chap(ha, username, password,
1558                                         free_index, bidi);
1559                 if (!rval) {
1560                         *chap_index = free_index;
1561                         found_index = 1;
1562                 }
1563         }
1564
1565         mutex_unlock(&ha->chap_sem);
1566
1567         if (found_index)
1568                 return QLA_SUCCESS;
1569         return QLA_ERROR;
1570 }
1571
1572 int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha,
1573                                    uint16_t fw_ddb_index,
1574                                    uint16_t connection_id,
1575                                    uint16_t option)
1576 {
1577         uint32_t mbox_cmd[MBOX_REG_COUNT];
1578         uint32_t mbox_sts[MBOX_REG_COUNT];
1579         int status = QLA_SUCCESS;
1580
1581         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1582         memset(&mbox_sts, 0, sizeof(mbox_sts));
1583
1584         mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
1585         mbox_cmd[1] = fw_ddb_index;
1586         mbox_cmd[2] = connection_id;
1587         mbox_cmd[3] = option;
1588
1589         status = qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]);
1590         if (status != QLA_SUCCESS) {
1591                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_CONN_CLOSE "
1592                                   "option %04x failed w/ status %04X %04X\n",
1593                                   __func__, option, mbox_sts[0], mbox_sts[1]));
1594         }
1595         return status;
1596 }
1597
1598 int qla4xxx_disable_acb(struct scsi_qla_host *ha)
1599 {
1600         uint32_t mbox_cmd[MBOX_REG_COUNT];
1601         uint32_t mbox_sts[MBOX_REG_COUNT];
1602         int status = QLA_SUCCESS;
1603
1604         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1605         memset(&mbox_sts, 0, sizeof(mbox_sts));
1606
1607         mbox_cmd[0] = MBOX_CMD_DISABLE_ACB;
1608
1609         status = qla4xxx_mailbox_command(ha, 8, 5, &mbox_cmd[0], &mbox_sts[0]);
1610         if (status != QLA_SUCCESS) {
1611                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_DISABLE_ACB "
1612                                   "failed w/ status %04X %04X %04X", __func__,
1613                                   mbox_sts[0], mbox_sts[1], mbox_sts[2]));
1614         }
1615         return status;
1616 }
1617
1618 int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t acb_dma,
1619                     uint32_t acb_type, uint32_t len)
1620 {
1621         uint32_t mbox_cmd[MBOX_REG_COUNT];
1622         uint32_t mbox_sts[MBOX_REG_COUNT];
1623         int status = QLA_SUCCESS;
1624
1625         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1626         memset(&mbox_sts, 0, sizeof(mbox_sts));
1627
1628         mbox_cmd[0] = MBOX_CMD_GET_ACB;
1629         mbox_cmd[1] = acb_type;
1630         mbox_cmd[2] = LSDW(acb_dma);
1631         mbox_cmd[3] = MSDW(acb_dma);
1632         mbox_cmd[4] = len;
1633
1634         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1635         if (status != QLA_SUCCESS) {
1636                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_GET_ACB "
1637                                   "failed w/ status %04X\n", __func__,
1638                                   mbox_sts[0]));
1639         }
1640         return status;
1641 }
1642
1643 int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
1644                     uint32_t *mbox_sts, dma_addr_t acb_dma)
1645 {
1646         int status = QLA_SUCCESS;
1647
1648         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1649         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1650         mbox_cmd[0] = MBOX_CMD_SET_ACB;
1651         mbox_cmd[1] = 0; /* Primary ACB */
1652         mbox_cmd[2] = LSDW(acb_dma);
1653         mbox_cmd[3] = MSDW(acb_dma);
1654         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
1655
1656         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1657         if (status != QLA_SUCCESS) {
1658                 DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: MBOX_CMD_SET_ACB "
1659                                   "failed w/ status %04X\n", __func__,
1660                                   mbox_sts[0]));
1661         }
1662         return status;
1663 }
1664
1665 int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha,
1666                                struct ddb_entry *ddb_entry,
1667                                struct iscsi_cls_conn *cls_conn,
1668                                uint32_t *mbx_sts)
1669 {
1670         struct dev_db_entry *fw_ddb_entry;
1671         struct iscsi_conn *conn;
1672         struct iscsi_session *sess;
1673         struct qla_conn *qla_conn;
1674         struct sockaddr *dst_addr;
1675         dma_addr_t fw_ddb_entry_dma;
1676         int status = QLA_SUCCESS;
1677         int rval = 0;
1678         struct sockaddr_in *addr;
1679         struct sockaddr_in6 *addr6;
1680         char *ip;
1681         uint16_t iscsi_opts = 0;
1682         uint32_t options = 0;
1683         uint16_t idx, *ptid;
1684
1685         fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1686                                           &fw_ddb_entry_dma, GFP_KERNEL);
1687         if (!fw_ddb_entry) {
1688                 DEBUG2(ql4_printk(KERN_ERR, ha,
1689                                   "%s: Unable to allocate dma buffer.\n",
1690                                   __func__));
1691                 rval = -ENOMEM;
1692                 goto exit_set_param_no_free;
1693         }
1694
1695         conn = cls_conn->dd_data;
1696         qla_conn = conn->dd_data;
1697         sess = conn->session;
1698         dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
1699
1700         if (dst_addr->sa_family == AF_INET6)
1701                 options |= IPV6_DEFAULT_DDB_ENTRY;
1702
1703         status = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
1704         if (status == QLA_ERROR) {
1705                 rval = -EINVAL;
1706                 goto exit_set_param;
1707         }
1708
1709         ptid = (uint16_t *)&fw_ddb_entry->isid[1];
1710         *ptid = cpu_to_le16((uint16_t)ddb_entry->sess->target_id);
1711
1712         DEBUG2(ql4_printk(KERN_INFO, ha, "ISID [%02x%02x%02x%02x%02x%02x]\n",
1713                           fw_ddb_entry->isid[5], fw_ddb_entry->isid[4],
1714                           fw_ddb_entry->isid[3], fw_ddb_entry->isid[2],
1715                           fw_ddb_entry->isid[1], fw_ddb_entry->isid[0]));
1716
1717         iscsi_opts = le16_to_cpu(fw_ddb_entry->iscsi_options);
1718         memset(fw_ddb_entry->iscsi_alias, 0, sizeof(fw_ddb_entry->iscsi_alias));
1719
1720         memset(fw_ddb_entry->iscsi_name, 0, sizeof(fw_ddb_entry->iscsi_name));
1721
1722         if (sess->targetname != NULL) {
1723                 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
1724                        min(strlen(sess->targetname),
1725                        sizeof(fw_ddb_entry->iscsi_name)));
1726         }
1727
1728         memset(fw_ddb_entry->ip_addr, 0, sizeof(fw_ddb_entry->ip_addr));
1729         memset(fw_ddb_entry->tgt_addr, 0, sizeof(fw_ddb_entry->tgt_addr));
1730
1731         fw_ddb_entry->options =  DDB_OPT_TARGET | DDB_OPT_AUTO_SENDTGTS_DISABLE;
1732
1733         if (dst_addr->sa_family == AF_INET) {
1734                 addr = (struct sockaddr_in *)dst_addr;
1735                 ip = (char *)&addr->sin_addr;
1736                 memcpy(fw_ddb_entry->ip_addr, ip, IP_ADDR_LEN);
1737                 fw_ddb_entry->port = cpu_to_le16(ntohs(addr->sin_port));
1738                 DEBUG2(ql4_printk(KERN_INFO, ha,
1739                                   "%s: Destination Address [%pI4]: index [%d]\n",
1740                                    __func__, fw_ddb_entry->ip_addr,
1741                                   ddb_entry->fw_ddb_index));
1742         } else if (dst_addr->sa_family == AF_INET6) {
1743                 addr6 = (struct sockaddr_in6 *)dst_addr;
1744                 ip = (char *)&addr6->sin6_addr;
1745                 memcpy(fw_ddb_entry->ip_addr, ip, IPv6_ADDR_LEN);
1746                 fw_ddb_entry->port = cpu_to_le16(ntohs(addr6->sin6_port));
1747                 fw_ddb_entry->options |= DDB_OPT_IPV6_DEVICE;
1748                 DEBUG2(ql4_printk(KERN_INFO, ha,
1749                                   "%s: Destination Address [%pI6]: index [%d]\n",
1750                                    __func__, fw_ddb_entry->ip_addr,
1751                                   ddb_entry->fw_ddb_index));
1752         } else {
1753                 ql4_printk(KERN_ERR, ha,
1754                            "%s: Failed to get IP Address\n",
1755                            __func__);
1756                 rval = -EINVAL;
1757                 goto exit_set_param;
1758         }
1759
1760         /* CHAP */
1761         if (sess->username != NULL && sess->password != NULL) {
1762                 if (strlen(sess->username) && strlen(sess->password)) {
1763                         iscsi_opts |= BIT_7;
1764
1765                         rval = qla4xxx_get_chap_index(ha, sess->username,
1766                                                 sess->password,
1767                                                 LOCAL_CHAP, &idx);
1768                         if (rval)
1769                                 goto exit_set_param;
1770
1771                         fw_ddb_entry->chap_tbl_idx = cpu_to_le16(idx);
1772                 }
1773         }
1774
1775         if (sess->username_in != NULL && sess->password_in != NULL) {
1776                 /* Check if BIDI CHAP */
1777                 if (strlen(sess->username_in) && strlen(sess->password_in)) {
1778                         iscsi_opts |= BIT_4;
1779
1780                         rval = qla4xxx_get_chap_index(ha, sess->username_in,
1781                                                       sess->password_in,
1782                                                       BIDI_CHAP, &idx);
1783                         if (rval)
1784                                 goto exit_set_param;
1785                 }
1786         }
1787
1788         if (sess->initial_r2t_en)
1789                 iscsi_opts |= BIT_10;
1790
1791         if (sess->imm_data_en)
1792                 iscsi_opts |= BIT_11;
1793
1794         fw_ddb_entry->iscsi_options = cpu_to_le16(iscsi_opts);
1795
1796         if (conn->max_recv_dlength)
1797                 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
1798                   __constant_cpu_to_le16((conn->max_recv_dlength / BYTE_UNITS));
1799
1800         if (sess->max_r2t)
1801                 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
1802
1803         if (sess->first_burst)
1804                 fw_ddb_entry->iscsi_first_burst_len =
1805                        __constant_cpu_to_le16((sess->first_burst / BYTE_UNITS));
1806
1807         if (sess->max_burst)
1808                 fw_ddb_entry->iscsi_max_burst_len =
1809                         __constant_cpu_to_le16((sess->max_burst / BYTE_UNITS));
1810
1811         if (sess->time2wait)
1812                 fw_ddb_entry->iscsi_def_time2wait =
1813                         cpu_to_le16(sess->time2wait);
1814
1815         if (sess->time2retain)
1816                 fw_ddb_entry->iscsi_def_time2retain =
1817                         cpu_to_le16(sess->time2retain);
1818
1819         status = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
1820                                        fw_ddb_entry_dma, mbx_sts);
1821
1822         if (status != QLA_SUCCESS)
1823                 rval = -EINVAL;
1824 exit_set_param:
1825         dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1826                           fw_ddb_entry, fw_ddb_entry_dma);
1827 exit_set_param_no_free:
1828         return rval;
1829 }
1830
1831 int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
1832                           uint16_t stats_size, dma_addr_t stats_dma)
1833 {
1834         int status = QLA_SUCCESS;
1835         uint32_t mbox_cmd[MBOX_REG_COUNT];
1836         uint32_t mbox_sts[MBOX_REG_COUNT];
1837
1838         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1839         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1840         mbox_cmd[0] = MBOX_CMD_GET_MANAGEMENT_DATA;
1841         mbox_cmd[1] = fw_ddb_index;
1842         mbox_cmd[2] = LSDW(stats_dma);
1843         mbox_cmd[3] = MSDW(stats_dma);
1844         mbox_cmd[4] = stats_size;
1845
1846         status = qla4xxx_mailbox_command(ha, 5, 1, &mbox_cmd[0], &mbox_sts[0]);
1847         if (status != QLA_SUCCESS) {
1848                 DEBUG2(ql4_printk(KERN_WARNING, ha,
1849                                   "%s: MBOX_CMD_GET_MANAGEMENT_DATA "
1850                                   "failed w/ status %04X\n", __func__,
1851                                   mbox_sts[0]));
1852         }
1853         return status;
1854 }
1855
1856 int qla4xxx_get_ip_state(struct scsi_qla_host *ha, uint32_t acb_idx,
1857                          uint32_t ip_idx, uint32_t *sts)
1858 {
1859         uint32_t mbox_cmd[MBOX_REG_COUNT];
1860         uint32_t mbox_sts[MBOX_REG_COUNT];
1861         int status = QLA_SUCCESS;
1862
1863         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1864         memset(&mbox_sts, 0, sizeof(mbox_sts));
1865         mbox_cmd[0] = MBOX_CMD_GET_IP_ADDR_STATE;
1866         mbox_cmd[1] = acb_idx;
1867         mbox_cmd[2] = ip_idx;
1868
1869         status = qla4xxx_mailbox_command(ha, 3, 8, &mbox_cmd[0], &mbox_sts[0]);
1870         if (status != QLA_SUCCESS) {
1871                 DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: "
1872                                   "MBOX_CMD_GET_IP_ADDR_STATE failed w/ "
1873                                   "status %04X\n", __func__, mbox_sts[0]));
1874         }
1875         memcpy(sts, mbox_sts, sizeof(mbox_sts));
1876         return status;
1877 }
1878
1879 int qla4xxx_get_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
1880                       uint32_t offset, uint32_t size)
1881 {
1882         int status = QLA_SUCCESS;
1883         uint32_t mbox_cmd[MBOX_REG_COUNT];
1884         uint32_t mbox_sts[MBOX_REG_COUNT];
1885
1886         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1887         memset(&mbox_sts, 0, sizeof(mbox_sts));
1888
1889         mbox_cmd[0] = MBOX_CMD_GET_NVRAM;
1890         mbox_cmd[1] = LSDW(nvram_dma);
1891         mbox_cmd[2] = MSDW(nvram_dma);
1892         mbox_cmd[3] = offset;
1893         mbox_cmd[4] = size;
1894
1895         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1896                                          &mbox_sts[0]);
1897         if (status != QLA_SUCCESS) {
1898                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1899                                   "status %04X\n", ha->host_no, __func__,
1900                                   mbox_sts[0]));
1901         }
1902         return status;
1903 }
1904
1905 int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
1906                       uint32_t offset, uint32_t size)
1907 {
1908         int status = QLA_SUCCESS;
1909         uint32_t mbox_cmd[MBOX_REG_COUNT];
1910         uint32_t mbox_sts[MBOX_REG_COUNT];
1911
1912         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1913         memset(&mbox_sts, 0, sizeof(mbox_sts));
1914
1915         mbox_cmd[0] = MBOX_CMD_SET_NVRAM;
1916         mbox_cmd[1] = LSDW(nvram_dma);
1917         mbox_cmd[2] = MSDW(nvram_dma);
1918         mbox_cmd[3] = offset;
1919         mbox_cmd[4] = size;
1920
1921         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1922                                          &mbox_sts[0]);
1923         if (status != QLA_SUCCESS) {
1924                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1925                                   "status %04X\n", ha->host_no, __func__,
1926                                   mbox_sts[0]));
1927         }
1928         return status;
1929 }
1930
1931 int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
1932                                      uint32_t region, uint32_t field0,
1933                                      uint32_t field1)
1934 {
1935         int status = QLA_SUCCESS;
1936         uint32_t mbox_cmd[MBOX_REG_COUNT];
1937         uint32_t mbox_sts[MBOX_REG_COUNT];
1938
1939         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1940         memset(&mbox_sts, 0, sizeof(mbox_sts));
1941
1942         mbox_cmd[0] = MBOX_CMD_RESTORE_FACTORY_DEFAULTS;
1943         mbox_cmd[3] = region;
1944         mbox_cmd[4] = field0;
1945         mbox_cmd[5] = field1;
1946
1947         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0],
1948                                          &mbox_sts[0]);
1949         if (status != QLA_SUCCESS) {
1950                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1951                                   "status %04X\n", ha->host_no, __func__,
1952                                   mbox_sts[0]));
1953         }
1954         return status;
1955 }