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_qla8022(ha)) {
  55                 if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
  56                         DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
  57                             "prematurely completing mbx cmd as firmware "
  58                             "recovery detected\n", ha->host_no, __func__));
  59                         return status;
  60                 }
  61                 /* Do not send any mbx cmd if h/w is in failed state*/
  62                 qla4_8xxx_idc_lock(ha);
  63                 dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
  64                 qla4_8xxx_idc_unlock(ha);
  65                 if (dev_state == QLA82XX_DEV_FAILED) {
  66                         ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: H/W is in "
  67                             "failed state, do not send any mailbox commands\n",
  68                             ha->host_no, __func__);
  69                         return status;
  70                 }
  71         }
  72
  73         if ((is_aer_supported(ha)) &&
  74             (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))) {
  75                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Perm failure on EEH, "
  76                     "timeout MBX Exiting.\n", ha->host_no, __func__));
  77                 return status;
  78         }
  79
  80         /* Mailbox code active */
  81         wait_count = MBOX_TOV * 100;
  82
  83         while (wait_count--) {
  84                 mutex_lock(&ha->mbox_sem);
  85                 if (!test_bit(AF_MBOX_COMMAND, &ha->flags)) {
  86                         set_bit(AF_MBOX_COMMAND, &ha->flags);
  87                         mutex_unlock(&ha->mbox_sem);
  88                         break;
  89                 }
  90                 mutex_unlock(&ha->mbox_sem);
  91                 if (!wait_count) {
  92                         DEBUG2(printk("scsi%ld: %s: mbox_sem failed\n",
  93                                 ha->host_no, __func__));
  94                         return status;
  95                 }
  96                 msleep(10);
  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                 goto mbox_exit;
 223         }
 224
 225         /*
 226          * Copy the mailbox out registers to the caller's mailbox in/out
 227          * structure.
 228          */
 229         spin_lock_irqsave(&ha->hardware_lock, flags);
 230         for (i = 0; i < outCount; i++)
 231                 mbx_sts[i] = ha->mbox_status[i];
 232
 233         /* Set return status and error flags (if applicable). */
 234         switch (ha->mbox_status[0]) {
 235         case MBOX_STS_COMMAND_COMPLETE:
 236                 status = QLA_SUCCESS;
 237                 break;
 238
 239         case MBOX_STS_INTERMEDIATE_COMPLETION:
 240                 status = QLA_SUCCESS;
 241                 break;
 242
 243         case MBOX_STS_BUSY:
 244                 DEBUG2( printk("scsi%ld: %s: Cmd = %08X, ISP BUSY\n",
 245                                ha->host_no, __func__, mbx_cmd[0]));
 246                 ha->mailbox_timeout_count++;
 247                 break;
 248
 249         default:
 250                 DEBUG2(printk("scsi%ld: %s: **** FAILED, cmd = %08X, "
 251                               "sts = %08X ****\n", ha->host_no, __func__,
 252                               mbx_cmd[0], mbx_sts[0]));
 253                 break;
 254         }
 255         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 256
 257 mbox_exit:
 258         mutex_lock(&ha->mbox_sem);
 259         clear_bit(AF_MBOX_COMMAND, &ha->flags);
 260         mutex_unlock(&ha->mbox_sem);
 261         clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
 262
 263         return status;
 264 }
 265
 266 void qla4xxx_mailbox_premature_completion(struct scsi_qla_host *ha)
 267 {
 268         set_bit(AF_FW_RECOVERY, &ha->flags);
 269         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: set FW RECOVERY!\n",
 270             ha->host_no, __func__);
 271
 272         if (test_bit(AF_MBOX_COMMAND, &ha->flags)) {
 273                 if (test_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags)) {
 274                         complete(&ha->mbx_intr_comp);
 275                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
 276                             "recovery, doing premature completion of "
 277                             "mbx cmd\n", ha->host_no, __func__);
 278
 279                 } else {
 280                         set_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
 281                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
 282                             "recovery, doing premature completion of "
 283                             "polling mbx cmd\n", ha->host_no, __func__);
 284                 }
 285         }
 286 }
 287
 288 static uint8_t
 289 qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
 290                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
 291 {
 292         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
 293         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
 294
 295         if (is_qla8022(ha))
 296                 qla4_8xxx_wr_32(ha, ha->nx_db_wr_ptr, 0);
 297
 298         mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE;
 299         mbox_cmd[1] = 0;
 300         mbox_cmd[2] = LSDW(init_fw_cb_dma);
 301         mbox_cmd[3] = MSDW(init_fw_cb_dma);
 302         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
 303         mbox_cmd[5] = (IFCB_VER_MAX << 8) | IFCB_VER_MIN;
 304
 305         if (qla4xxx_mailbox_command(ha, 6, 6, mbox_cmd, mbox_sts) !=
 306             QLA_SUCCESS) {
 307                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
 308                               "MBOX_CMD_INITIALIZE_FIRMWARE"
 309                               " failed w/ status %04X\n",
 310                               ha->host_no, __func__, mbox_sts[0]));
 311                 return QLA_ERROR;
 312         }
 313         return QLA_SUCCESS;
 314 }
 315
 316 uint8_t
 317 qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
 318                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
 319 {
 320         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
 321         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
 322         mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK;
 323         mbox_cmd[2] = LSDW(init_fw_cb_dma);
 324         mbox_cmd[3] = MSDW(init_fw_cb_dma);
 325         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
 326
 327         if (qla4xxx_mailbox_command(ha, 5, 5, mbox_cmd, mbox_sts) !=
 328             QLA_SUCCESS) {
 329                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
 330                               "MBOX_CMD_GET_INIT_FW_CTRL_BLOCK"
 331                               " failed w/ status %04X\n",
 332                               ha->host_no, __func__, mbox_sts[0]));
 333                 return QLA_ERROR;
 334         }
 335         return QLA_SUCCESS;
 336 }
 337
 338 static void
 339 qla4xxx_update_local_ip(struct scsi_qla_host *ha,
 340                         struct addr_ctrl_blk *init_fw_cb)
 341 {
 342         ha->ip_config.tcp_options = le16_to_cpu(init_fw_cb->ipv4_tcp_opts);
 343         ha->ip_config.ipv4_options = le16_to_cpu(init_fw_cb->ipv4_ip_opts);
 344         ha->ip_config.ipv4_addr_state =
 345                                 le16_to_cpu(init_fw_cb->ipv4_addr_state);
 346         ha->ip_config.eth_mtu_size =
 347                                 le16_to_cpu(init_fw_cb->eth_mtu_size);
 348         ha->ip_config.ipv4_port = le16_to_cpu(init_fw_cb->ipv4_port);
 349
 350         if (ha->acb_version == ACB_SUPPORTED) {
 351                 ha->ip_config.ipv6_options = le16_to_cpu(init_fw_cb->ipv6_opts);
 352                 ha->ip_config.ipv6_addl_options =
 353                                 le16_to_cpu(init_fw_cb->ipv6_addtl_opts);
 354         }
 355
 356         /* Save IPv4 Address Info */
 357         memcpy(ha->ip_config.ip_address, init_fw_cb->ipv4_addr,
 358                min(sizeof(ha->ip_config.ip_address),
 359                    sizeof(init_fw_cb->ipv4_addr)));
 360         memcpy(ha->ip_config.subnet_mask, init_fw_cb->ipv4_subnet,
 361                min(sizeof(ha->ip_config.subnet_mask),
 362                    sizeof(init_fw_cb->ipv4_subnet)));
 363         memcpy(ha->ip_config.gateway, init_fw_cb->ipv4_gw_addr,
 364                min(sizeof(ha->ip_config.gateway),
 365                    sizeof(init_fw_cb->ipv4_gw_addr)));
 366
 367         ha->ip_config.ipv4_vlan_tag = be16_to_cpu(init_fw_cb->ipv4_vlan_tag);
 368
 369         if (is_ipv6_enabled(ha)) {
 370                 /* Save IPv6 Address */
 371                 ha->ip_config.ipv6_link_local_state =
 372                         le16_to_cpu(init_fw_cb->ipv6_lnk_lcl_addr_state);
 373                 ha->ip_config.ipv6_addr0_state =
 374                                 le16_to_cpu(init_fw_cb->ipv6_addr0_state);
 375                 ha->ip_config.ipv6_addr1_state =
 376                                 le16_to_cpu(init_fw_cb->ipv6_addr1_state);
 377                 ha->ip_config.ipv6_default_router_state =
 378                                 le16_to_cpu(init_fw_cb->ipv6_dflt_rtr_state);
 379                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[0] = 0xFE;
 380                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[1] = 0x80;
 381
 382                 memcpy(&ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[8],
 383                        init_fw_cb->ipv6_if_id,
 384                        min(sizeof(ha->ip_config.ipv6_link_local_addr)/2,
 385                            sizeof(init_fw_cb->ipv6_if_id)));
 386                 memcpy(&ha->ip_config.ipv6_addr0, init_fw_cb->ipv6_addr0,
 387                        min(sizeof(ha->ip_config.ipv6_addr0),
 388                            sizeof(init_fw_cb->ipv6_addr0)));
 389                 memcpy(&ha->ip_config.ipv6_addr1, init_fw_cb->ipv6_addr1,
 390                        min(sizeof(ha->ip_config.ipv6_addr1),
 391                            sizeof(init_fw_cb->ipv6_addr1)));
 392                 memcpy(&ha->ip_config.ipv6_default_router_addr,
 393                        init_fw_cb->ipv6_dflt_rtr_addr,
 394                        min(sizeof(ha->ip_config.ipv6_default_router_addr),
 395                            sizeof(init_fw_cb->ipv6_dflt_rtr_addr)));
 396                 ha->ip_config.ipv6_vlan_tag =
 397                                 be16_to_cpu(init_fw_cb->ipv6_vlan_tag);
 398                 ha->ip_config.ipv6_port = le16_to_cpu(init_fw_cb->ipv6_port);
 399         }
 400 }
 401
 402 uint8_t
 403 qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
 404                           uint32_t *mbox_cmd,
 405                           uint32_t *mbox_sts,
 406                           struct addr_ctrl_blk  *init_fw_cb,
 407                           dma_addr_t init_fw_cb_dma)
 408 {
 409         if (qla4xxx_get_ifcb(ha, mbox_cmd, mbox_sts, init_fw_cb_dma)
 410             != QLA_SUCCESS) {
 411                 DEBUG2(printk(KERN_WARNING
 412                               "scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
 413                               ha->host_no, __func__));
 414                 return QLA_ERROR;
 415         }
 416
 417         DEBUG2(qla4xxx_dump_buffer(init_fw_cb, sizeof(struct addr_ctrl_blk)));
 418
 419         /* Save some info in adapter structure. */
 420         ha->acb_version = init_fw_cb->acb_version;
 421         ha->firmware_options = le16_to_cpu(init_fw_cb->fw_options);
 422         ha->heartbeat_interval = init_fw_cb->hb_interval;
 423         memcpy(ha->name_string, init_fw_cb->iscsi_name,
 424                 min(sizeof(ha->name_string),
 425                 sizeof(init_fw_cb->iscsi_name)));
 426         ha->def_timeout = le16_to_cpu(init_fw_cb->def_timeout);
 427         /*memcpy(ha->alias, init_fw_cb->Alias,
 428                min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/
 429
 430         qla4xxx_update_local_ip(ha, init_fw_cb);
 431
 432         return QLA_SUCCESS;
 433 }
 434
 435 /**
 436  * qla4xxx_initialize_fw_cb - initializes firmware control block.
 437  * @ha: Pointer to host adapter structure.
 438  **/
 439 int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
 440 {
 441         struct addr_ctrl_blk *init_fw_cb;
 442         dma_addr_t init_fw_cb_dma;
 443         uint32_t mbox_cmd[MBOX_REG_COUNT];
 444         uint32_t mbox_sts[MBOX_REG_COUNT];
 445         int status = QLA_ERROR;
 446
 447         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
 448                                         sizeof(struct addr_ctrl_blk),
 449                                         &init_fw_cb_dma, GFP_KERNEL);
 450         if (init_fw_cb == NULL) {
 451                 DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n",
 452                               ha->host_no, __func__));
 453                 goto exit_init_fw_cb_no_free;
 454         }
 455         memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
 456
 457         /* Get Initialize Firmware Control Block. */
 458         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 459         memset(&mbox_sts, 0, sizeof(mbox_sts));
 460
 461         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
 462             QLA_SUCCESS) {
 463                 dma_free_coherent(&ha->pdev->dev,
 464                                   sizeof(struct addr_ctrl_blk),
 465                                   init_fw_cb, init_fw_cb_dma);
 466                 goto exit_init_fw_cb;
 467         }
 468
 469         /* Initialize request and response queues. */
 470         qla4xxx_init_rings(ha);
 471
 472         /* Fill in the request and response queue information. */
 473         init_fw_cb->rqq_consumer_idx = cpu_to_le16(ha->request_out);
 474         init_fw_cb->compq_producer_idx = cpu_to_le16(ha->response_in);
 475         init_fw_cb->rqq_len = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH);
 476         init_fw_cb->compq_len = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH);
 477         init_fw_cb->rqq_addr_lo = cpu_to_le32(LSDW(ha->request_dma));
 478         init_fw_cb->rqq_addr_hi = cpu_to_le32(MSDW(ha->request_dma));
 479         init_fw_cb->compq_addr_lo = cpu_to_le32(LSDW(ha->response_dma));
 480         init_fw_cb->compq_addr_hi = cpu_to_le32(MSDW(ha->response_dma));
 481         init_fw_cb->shdwreg_addr_lo = cpu_to_le32(LSDW(ha->shadow_regs_dma));
 482         init_fw_cb->shdwreg_addr_hi = cpu_to_le32(MSDW(ha->shadow_regs_dma));
 483
 484         /* Set up required options. */
 485         init_fw_cb->fw_options |=
 486                 __constant_cpu_to_le16(FWOPT_SESSION_MODE |
 487                                        FWOPT_INITIATOR_MODE);
 488
 489         if (is_qla8022(ha))
 490                 init_fw_cb->fw_options |=
 491                     __constant_cpu_to_le16(FWOPT_ENABLE_CRBDB);
 492
 493         init_fw_cb->fw_options &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE);
 494
 495         init_fw_cb->add_fw_options = 0;
 496         init_fw_cb->add_fw_options |=
 497                         __constant_cpu_to_le16(ADFWOPT_SERIALIZE_TASK_MGMT);
 498         init_fw_cb->add_fw_options |=
 499                         __constant_cpu_to_le16(ADFWOPT_AUTOCONN_DISABLE);
 500
 501         if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)
 502                 != QLA_SUCCESS) {
 503                 DEBUG2(printk(KERN_WARNING
 504                               "scsi%ld: %s: Failed to set init_fw_ctrl_blk\n",
 505                               ha->host_no, __func__));
 506                 goto exit_init_fw_cb;
 507         }
 508
 509         if (qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0],
 510                 init_fw_cb, init_fw_cb_dma) != QLA_SUCCESS) {
 511                 DEBUG2(printk("scsi%ld: %s: Failed to update local ifcb\n",
 512                                 ha->host_no, __func__));
 513                 goto exit_init_fw_cb;
 514         }
 515         status = QLA_SUCCESS;
 516
 517 exit_init_fw_cb:
 518         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
 519                                 init_fw_cb, init_fw_cb_dma);
 520 exit_init_fw_cb_no_free:
 521         return status;
 522 }
 523
 524 /**
 525  * qla4xxx_get_dhcp_ip_address - gets HBA ip address via DHCP
 526  * @ha: Pointer to host adapter structure.
 527  **/
 528 int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
 529 {
 530         struct addr_ctrl_blk *init_fw_cb;
 531         dma_addr_t init_fw_cb_dma;
 532         uint32_t mbox_cmd[MBOX_REG_COUNT];
 533         uint32_t mbox_sts[MBOX_REG_COUNT];
 534
 535         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
 536                                         sizeof(struct addr_ctrl_blk),
 537                                         &init_fw_cb_dma, GFP_KERNEL);
 538         if (init_fw_cb == NULL) {
 539                 printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no,
 540                        __func__);
 541                 return QLA_ERROR;
 542         }
 543
 544         /* Get Initialize Firmware Control Block. */
 545         memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
 546         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
 547             QLA_SUCCESS) {
 548                 DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
 549                               ha->host_no, __func__));
 550                 dma_free_coherent(&ha->pdev->dev,
 551                                   sizeof(struct addr_ctrl_blk),
 552                                   init_fw_cb, init_fw_cb_dma);
 553                 return QLA_ERROR;
 554         }
 555
 556         /* Save IP Address. */
 557         qla4xxx_update_local_ip(ha, init_fw_cb);
 558         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
 559                                 init_fw_cb, init_fw_cb_dma);
 560
 561         return QLA_SUCCESS;
 562 }
 563
 564 /**
 565  * qla4xxx_get_firmware_state - gets firmware state of HBA
 566  * @ha: Pointer to host adapter structure.
 567  **/
 568 int qla4xxx_get_firmware_state(struct scsi_qla_host * ha)
 569 {
 570         uint32_t mbox_cmd[MBOX_REG_COUNT];
 571         uint32_t mbox_sts[MBOX_REG_COUNT];
 572
 573         /* Get firmware version */
 574         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 575         memset(&mbox_sts, 0, sizeof(mbox_sts));
 576
 577         mbox_cmd[0] = MBOX_CMD_GET_FW_STATE;
 578
 579         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 4, &mbox_cmd[0], &mbox_sts[0]) !=
 580             QLA_SUCCESS) {
 581                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ "
 582                               "status %04X\n", ha->host_no, __func__,
 583                               mbox_sts[0]));
 584                 return QLA_ERROR;
 585         }
 586         ha->firmware_state = mbox_sts[1];
 587         ha->board_id = mbox_sts[2];
 588         ha->addl_fw_state = mbox_sts[3];
 589         DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n",
 590                       ha->host_no, __func__, ha->firmware_state);)
 591
 592         return QLA_SUCCESS;
 593 }
 594
 595 /**
 596  * qla4xxx_get_firmware_status - retrieves firmware status
 597  * @ha: Pointer to host adapter structure.
 598  **/
 599 int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
 600 {
 601         uint32_t mbox_cmd[MBOX_REG_COUNT];
 602         uint32_t mbox_sts[MBOX_REG_COUNT];
 603
 604         /* Get firmware version */
 605         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 606         memset(&mbox_sts, 0, sizeof(mbox_sts));
 607
 608         mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS;
 609
 610         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) !=
 611             QLA_SUCCESS) {
 612                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ "
 613                               "status %04X\n", ha->host_no, __func__,
 614                               mbox_sts[0]));
 615                 return QLA_ERROR;
 616         }
 617
 618         ql4_printk(KERN_INFO, ha, "%ld firmare IOCBs available (%d).\n",
 619             ha->host_no, mbox_sts[2]);
 620
 621         return QLA_SUCCESS;
 622 }
 623
 624 /**
 625  * qla4xxx_get_fwddb_entry - retrieves firmware ddb entry
 626  * @ha: Pointer to host adapter structure.
 627  * @fw_ddb_index: Firmware's device database index
 628  * @fw_ddb_entry: Pointer to firmware's device database entry structure
 629  * @num_valid_ddb_entries: Pointer to number of valid ddb entries
 630  * @next_ddb_index: Pointer to next valid device database index
 631  * @fw_ddb_device_state: Pointer to device state
 632  **/
 633 int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha,
 634                             uint16_t fw_ddb_index,
 635                             struct dev_db_entry *fw_ddb_entry,
 636                             dma_addr_t fw_ddb_entry_dma,
 637                             uint32_t *num_valid_ddb_entries,
 638                             uint32_t *next_ddb_index,
 639                             uint32_t *fw_ddb_device_state,
 640                             uint32_t *conn_err_detail,
 641                             uint16_t *tcp_source_port_num,
 642                             uint16_t *connection_id)
 643 {
 644         int status = QLA_ERROR;
 645         uint16_t options;
 646         uint32_t mbox_cmd[MBOX_REG_COUNT];
 647         uint32_t mbox_sts[MBOX_REG_COUNT];
 648
 649         /* Make sure the device index is valid */
 650         if (fw_ddb_index >= MAX_DDB_ENTRIES) {
 651                 DEBUG2(printk("scsi%ld: %s: ddb [%d] out of range.\n",
 652                               ha->host_no, __func__, fw_ddb_index));
 653                 goto exit_get_fwddb;
 654         }
 655         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 656         memset(&mbox_sts, 0, sizeof(mbox_sts));
 657
 658         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY;
 659         mbox_cmd[1] = (uint32_t) fw_ddb_index;
 660         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
 661         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
 662         mbox_cmd[4] = sizeof(struct dev_db_entry);
 663
 664         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 7, &mbox_cmd[0], &mbox_sts[0]) ==
 665             QLA_ERROR) {
 666                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed"
 667                               " with status 0x%04X\n", ha->host_no, __func__,
 668                               mbox_sts[0]));
 669                 goto exit_get_fwddb;
 670         }
 671         if (fw_ddb_index != mbox_sts[1]) {
 672                 DEBUG2(printk("scsi%ld: %s: ddb mismatch [%d] != [%d].\n",
 673                               ha->host_no, __func__, fw_ddb_index,
 674                               mbox_sts[1]));
 675                 goto exit_get_fwddb;
 676         }
 677         if (fw_ddb_entry) {
 678                 options = le16_to_cpu(fw_ddb_entry->options);
 679                 if (options & DDB_OPT_IPV6_DEVICE) {
 680                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
 681                                 "Next %d State %04x ConnErr %08x %pI6 "
 682                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
 683                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
 684                                 mbox_sts[4], mbox_sts[5],
 685                                 fw_ddb_entry->ip_addr,
 686                                 le16_to_cpu(fw_ddb_entry->port),
 687                                 fw_ddb_entry->iscsi_name);
 688                 } else {
 689                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
 690                                 "Next %d State %04x ConnErr %08x %pI4 "
 691                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
 692                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
 693                                 mbox_sts[4], mbox_sts[5],
 694                                 fw_ddb_entry->ip_addr,
 695                                 le16_to_cpu(fw_ddb_entry->port),
 696                                 fw_ddb_entry->iscsi_name);
 697                 }
 698         }
 699         if (num_valid_ddb_entries)
 700                 *num_valid_ddb_entries = mbox_sts[2];
 701         if (next_ddb_index)
 702                 *next_ddb_index = mbox_sts[3];
 703         if (fw_ddb_device_state)
 704                 *fw_ddb_device_state = mbox_sts[4];
 705
 706         /*
 707          * RA: This mailbox has been changed to pass connection error and
 708          * details.  Its true for ISP4010 as per Version E - Not sure when it
 709          * was changed.  Get the time2wait from the fw_dd_entry field :
 710          * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY
 711          * struct.
 712          */
 713         if (conn_err_detail)
 714                 *conn_err_detail = mbox_sts[5];
 715         if (tcp_source_port_num)
 716                 *tcp_source_port_num = (uint16_t) (mbox_sts[6] >> 16);
 717         if (connection_id)
 718                 *connection_id = (uint16_t) mbox_sts[6] & 0x00FF;
 719         status = QLA_SUCCESS;
 720
 721 exit_get_fwddb:
 722         return status;
 723 }
 724
 725 int qla4xxx_conn_open(struct scsi_qla_host *ha, uint16_t fw_ddb_index)
 726 {
 727         uint32_t mbox_cmd[MBOX_REG_COUNT];
 728         uint32_t mbox_sts[MBOX_REG_COUNT];
 729         int status;
 730
 731         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 732         memset(&mbox_sts, 0, sizeof(mbox_sts));
 733
 734         mbox_cmd[0] = MBOX_CMD_CONN_OPEN;
 735         mbox_cmd[1] = fw_ddb_index;
 736
 737         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
 738                                          &mbox_sts[0]);
 739         DEBUG2(ql4_printk(KERN_INFO, ha,
 740                           "%s: status = %d mbx0 = 0x%x mbx1 = 0x%x\n",
 741                           __func__, status, mbox_sts[0], mbox_sts[1]));
 742         return status;
 743 }
 744
 745 /**
 746  * qla4xxx_set_fwddb_entry - sets a ddb entry.
 747  * @ha: Pointer to host adapter structure.
 748  * @fw_ddb_index: Firmware's device database index
 749  * @fw_ddb_entry_dma: dma address of ddb entry
 750  * @mbx_sts: mailbox 0 to be returned or NULL
 751  *
 752  * This routine initializes or updates the adapter's device database
 753  * entry for the specified device.
 754  **/
 755 int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index,
 756                           dma_addr_t fw_ddb_entry_dma, uint32_t *mbx_sts)
 757 {
 758         uint32_t mbox_cmd[MBOX_REG_COUNT];
 759         uint32_t mbox_sts[MBOX_REG_COUNT];
 760         int status;
 761
 762         /* Do not wait for completion. The firmware will send us an
 763          * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status.
 764          */
 765         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 766         memset(&mbox_sts, 0, sizeof(mbox_sts));
 767
 768         mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY;
 769         mbox_cmd[1] = (uint32_t) fw_ddb_index;
 770         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
 771         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
 772         mbox_cmd[4] = sizeof(struct dev_db_entry);
 773
 774         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
 775                                          &mbox_sts[0]);
 776         if (mbx_sts)
 777                 *mbx_sts = mbox_sts[0];
 778         DEBUG2(printk("scsi%ld: %s: status=%d mbx0=0x%x mbx4=0x%x\n",
 779             ha->host_no, __func__, status, mbox_sts[0], mbox_sts[4]);)
 780
 781         return status;
 782 }
 783
 784 int qla4xxx_session_logout_ddb(struct scsi_qla_host *ha,
 785                                struct ddb_entry *ddb_entry, int options)
 786 {
 787         int status;
 788         uint32_t mbox_cmd[MBOX_REG_COUNT];
 789         uint32_t mbox_sts[MBOX_REG_COUNT];
 790
 791         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 792         memset(&mbox_sts, 0, sizeof(mbox_sts));
 793
 794         mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
 795         mbox_cmd[1] = ddb_entry->fw_ddb_index;
 796         mbox_cmd[3] = options;
 797
 798         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
 799                                          &mbox_sts[0]);
 800         if (status != QLA_SUCCESS) {
 801                 DEBUG2(ql4_printk(KERN_INFO, ha,
 802                                   "%s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT "
 803                                   "failed sts %04X %04X", __func__,
 804                                   mbox_sts[0], mbox_sts[1]));
 805         }
 806
 807         return status;
 808 }
 809
 810 /**
 811  * qla4xxx_get_crash_record - retrieves crash record.
 812  * @ha: Pointer to host adapter structure.
 813  *
 814  * This routine retrieves a crash record from the QLA4010 after an 8002h aen.
 815  **/
 816 void qla4xxx_get_crash_record(struct scsi_qla_host * ha)
 817 {
 818         uint32_t mbox_cmd[MBOX_REG_COUNT];
 819         uint32_t mbox_sts[MBOX_REG_COUNT];
 820         struct crash_record *crash_record = NULL;
 821         dma_addr_t crash_record_dma = 0;
 822         uint32_t crash_record_size = 0;
 823
 824         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 825         memset(&mbox_sts, 0, sizeof(mbox_cmd));
 826
 827         /* Get size of crash record. */
 828         mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
 829
 830         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
 831             QLA_SUCCESS) {
 832                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n",
 833                               ha->host_no, __func__));
 834                 goto exit_get_crash_record;
 835         }
 836         crash_record_size = mbox_sts[4];
 837         if (crash_record_size == 0) {
 838                 DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n",
 839                               ha->host_no, __func__));
 840                 goto exit_get_crash_record;
 841         }
 842
 843         /* Alloc Memory for Crash Record. */
 844         crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size,
 845                                           &crash_record_dma, GFP_KERNEL);
 846         if (crash_record == NULL)
 847                 goto exit_get_crash_record;
 848
 849         /* Get Crash Record. */
 850         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 851         memset(&mbox_sts, 0, sizeof(mbox_cmd));
 852
 853         mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
 854         mbox_cmd[2] = LSDW(crash_record_dma);
 855         mbox_cmd[3] = MSDW(crash_record_dma);
 856         mbox_cmd[4] = crash_record_size;
 857
 858         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
 859             QLA_SUCCESS)
 860                 goto exit_get_crash_record;
 861
 862         /* Dump Crash Record. */
 863
 864 exit_get_crash_record:
 865         if (crash_record)
 866                 dma_free_coherent(&ha->pdev->dev, crash_record_size,
 867                                   crash_record, crash_record_dma);
 868 }
 869
 870 /**
 871  * qla4xxx_get_conn_event_log - retrieves connection event log
 872  * @ha: Pointer to host adapter structure.
 873  **/
 874 void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)
 875 {
 876         uint32_t mbox_cmd[MBOX_REG_COUNT];
 877         uint32_t mbox_sts[MBOX_REG_COUNT];
 878         struct conn_event_log_entry *event_log = NULL;
 879         dma_addr_t event_log_dma = 0;
 880         uint32_t event_log_size = 0;
 881         uint32_t num_valid_entries;
 882         uint32_t      oldest_entry = 0;
 883         uint32_t        max_event_log_entries;
 884         uint8_t         i;
 885
 886         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 887         memset(&mbox_sts, 0, sizeof(mbox_cmd));
 888
 889         /* Get size of crash record. */
 890         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
 891
 892         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
 893             QLA_SUCCESS)
 894                 goto exit_get_event_log;
 895
 896         event_log_size = mbox_sts[4];
 897         if (event_log_size == 0)
 898                 goto exit_get_event_log;
 899
 900         /* Alloc Memory for Crash Record. */
 901         event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size,
 902                                        &event_log_dma, GFP_KERNEL);
 903         if (event_log == NULL)
 904                 goto exit_get_event_log;
 905
 906         /* Get Crash Record. */
 907         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 908         memset(&mbox_sts, 0, sizeof(mbox_cmd));
 909
 910         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
 911         mbox_cmd[2] = LSDW(event_log_dma);
 912         mbox_cmd[3] = MSDW(event_log_dma);
 913
 914         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
 915             QLA_SUCCESS) {
 916                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event "
 917                               "log!\n", ha->host_no, __func__));
 918                 goto exit_get_event_log;
 919         }
 920
 921         /* Dump Event Log. */
 922         num_valid_entries = mbox_sts[1];
 923
 924         max_event_log_entries = event_log_size /
 925                 sizeof(struct conn_event_log_entry);
 926
 927         if (num_valid_entries > max_event_log_entries)
 928                 oldest_entry = num_valid_entries % max_event_log_entries;
 929
 930         DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n",
 931                       ha->host_no, num_valid_entries));
 932
 933         if (ql4xextended_error_logging == 3) {
 934                 if (oldest_entry == 0) {
 935                         /* Circular Buffer has not wrapped around */
 936                         for (i=0; i < num_valid_entries; i++) {
 937                                 qla4xxx_dump_buffer((uint8_t *)event_log+
 938                                                     (i*sizeof(*event_log)),
 939                                                     sizeof(*event_log));
 940                         }
 941                 }
 942                 else {
 943                         /* Circular Buffer has wrapped around -
 944                          * display accordingly*/
 945                         for (i=oldest_entry; i < max_event_log_entries; i++) {
 946                                 qla4xxx_dump_buffer((uint8_t *)event_log+
 947                                                     (i*sizeof(*event_log)),
 948                                                     sizeof(*event_log));
 949                         }
 950                         for (i=0; i < oldest_entry; i++) {
 951                                 qla4xxx_dump_buffer((uint8_t *)event_log+
 952                                                     (i*sizeof(*event_log)),
 953                                                     sizeof(*event_log));
 954                         }
 955                 }
 956         }
 957
 958 exit_get_event_log:
 959         if (event_log)
 960                 dma_free_coherent(&ha->pdev->dev, event_log_size, event_log,
 961                                   event_log_dma);
 962 }
 963
 964 /**
 965  * qla4xxx_abort_task - issues Abort Task
 966  * @ha: Pointer to host adapter structure.
 967  * @srb: Pointer to srb entry
 968  *
 969  * This routine performs a LUN RESET on the specified target/lun.
 970  * The caller must ensure that the ddb_entry and lun_entry pointers
 971  * are valid before calling this routine.
 972  **/
 973 int qla4xxx_abort_task(struct scsi_qla_host *ha, struct srb *srb)
 974 {
 975         uint32_t mbox_cmd[MBOX_REG_COUNT];
 976         uint32_t mbox_sts[MBOX_REG_COUNT];
 977         struct scsi_cmnd *cmd = srb->cmd;
 978         int status = QLA_SUCCESS;
 979         unsigned long flags = 0;
 980         uint32_t index;
 981
 982         /*
 983          * Send abort task command to ISP, so that the ISP will return
 984          * request with ABORT status
 985          */
 986         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 987         memset(&mbox_sts, 0, sizeof(mbox_sts));
 988
 989         spin_lock_irqsave(&ha->hardware_lock, flags);
 990         index = (unsigned long)(unsigned char *)cmd->host_scribble;
 991         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 992
 993         /* Firmware already posted completion on response queue */
 994         if (index == MAX_SRBS)
 995                 return status;
 996
 997         mbox_cmd[0] = MBOX_CMD_ABORT_TASK;
 998         mbox_cmd[1] = srb->ddb->fw_ddb_index;
 999         mbox_cmd[2] = index;
1000         /* Immediate Command Enable */
1001         mbox_cmd[5] = 0x01;
1002
1003         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
1004             &mbox_sts[0]);
1005         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE) {
1006                 status = QLA_ERROR;
1007
1008                 DEBUG2(printk(KERN_WARNING "scsi%ld:%d:%d: abort task FAILED: "
1009                     "mbx0=%04X, mb1=%04X, mb2=%04X, mb3=%04X, mb4=%04X\n",
1010                     ha->host_no, cmd->device->id, cmd->device->lun, mbox_sts[0],
1011                     mbox_sts[1], mbox_sts[2], mbox_sts[3], mbox_sts[4]));
1012         }
1013
1014         return status;
1015 }
1016
1017 /**
1018  * qla4xxx_reset_lun - issues LUN Reset
1019  * @ha: Pointer to host adapter structure.
1020  * @ddb_entry: Pointer to device database entry
1021  * @lun: lun number
1022  *
1023  * This routine performs a LUN RESET on the specified target/lun.
1024  * The caller must ensure that the ddb_entry and lun_entry pointers
1025  * are valid before calling this routine.
1026  **/
1027 int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
1028                       int lun)
1029 {
1030         uint32_t mbox_cmd[MBOX_REG_COUNT];
1031         uint32_t mbox_sts[MBOX_REG_COUNT];
1032         int status = QLA_SUCCESS;
1033
1034         DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no,
1035                       ddb_entry->fw_ddb_index, lun));
1036
1037         /*
1038          * Send lun reset command to ISP, so that the ISP will return all
1039          * outstanding requests with RESET status
1040          */
1041         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1042         memset(&mbox_sts, 0, sizeof(mbox_sts));
1043
1044         mbox_cmd[0] = MBOX_CMD_LUN_RESET;
1045         mbox_cmd[1] = ddb_entry->fw_ddb_index;
1046         mbox_cmd[2] = lun << 8;
1047         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
1048
1049         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]);
1050         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1051             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1052                 status = QLA_ERROR;
1053
1054         return status;
1055 }
1056
1057 /**
1058  * qla4xxx_reset_target - issues target Reset
1059  * @ha: Pointer to host adapter structure.
1060  * @db_entry: Pointer to device database entry
1061  * @un_entry: Pointer to lun entry structure
1062  *
1063  * This routine performs a TARGET RESET on the specified target.
1064  * The caller must ensure that the ddb_entry pointers
1065  * are valid before calling this routine.
1066  **/
1067 int qla4xxx_reset_target(struct scsi_qla_host *ha,
1068                          struct ddb_entry *ddb_entry)
1069 {
1070         uint32_t mbox_cmd[MBOX_REG_COUNT];
1071         uint32_t mbox_sts[MBOX_REG_COUNT];
1072         int status = QLA_SUCCESS;
1073
1074         DEBUG2(printk("scsi%ld:%d: target reset issued\n", ha->host_no,
1075                       ddb_entry->fw_ddb_index));
1076
1077         /*
1078          * Send target reset command to ISP, so that the ISP will return all
1079          * outstanding requests with RESET status
1080          */
1081         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1082         memset(&mbox_sts, 0, sizeof(mbox_sts));
1083
1084         mbox_cmd[0] = MBOX_CMD_TARGET_WARM_RESET;
1085         mbox_cmd[1] = ddb_entry->fw_ddb_index;
1086         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
1087
1088         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1089                                 &mbox_sts[0]);
1090         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1091             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1092                 status = QLA_ERROR;
1093
1094         return status;
1095 }
1096
1097 int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr,
1098                       uint32_t offset, uint32_t len)
1099 {
1100         uint32_t mbox_cmd[MBOX_REG_COUNT];
1101         uint32_t mbox_sts[MBOX_REG_COUNT];
1102
1103         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1104         memset(&mbox_sts, 0, sizeof(mbox_sts));
1105
1106         mbox_cmd[0] = MBOX_CMD_READ_FLASH;
1107         mbox_cmd[1] = LSDW(dma_addr);
1108         mbox_cmd[2] = MSDW(dma_addr);
1109         mbox_cmd[3] = offset;
1110         mbox_cmd[4] = len;
1111
1112         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], &mbox_sts[0]) !=
1113             QLA_SUCCESS) {
1114                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ "
1115                     "status %04X %04X, offset %08x, len %08x\n", ha->host_no,
1116                     __func__, mbox_sts[0], mbox_sts[1], offset, len));
1117                 return QLA_ERROR;
1118         }
1119         return QLA_SUCCESS;
1120 }
1121
1122 /**
1123  * qla4xxx_about_firmware - gets FW, iscsi draft and boot loader version
1124  * @ha: Pointer to host adapter structure.
1125  *
1126  * Retrieves the FW version, iSCSI draft version & bootloader version of HBA.
1127  * Mailboxes 2 & 3 may hold an address for data. Make sure that we write 0 to
1128  * those mailboxes, if unused.
1129  **/
1130 int qla4xxx_about_firmware(struct scsi_qla_host *ha)
1131 {
1132         struct about_fw_info *about_fw = NULL;
1133         dma_addr_t about_fw_dma;
1134         uint32_t mbox_cmd[MBOX_REG_COUNT];
1135         uint32_t mbox_sts[MBOX_REG_COUNT];
1136         int status = QLA_ERROR;
1137
1138         about_fw = dma_alloc_coherent(&ha->pdev->dev,
1139                                       sizeof(struct about_fw_info),
1140                                       &about_fw_dma, GFP_KERNEL);
1141         if (!about_fw) {
1142                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to alloc memory "
1143                                   "for about_fw\n", __func__));
1144                 return status;
1145         }
1146
1147         memset(about_fw, 0, sizeof(struct about_fw_info));
1148         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1149         memset(&mbox_sts, 0, sizeof(mbox_sts));
1150
1151         mbox_cmd[0] = MBOX_CMD_ABOUT_FW;
1152         mbox_cmd[2] = LSDW(about_fw_dma);
1153         mbox_cmd[3] = MSDW(about_fw_dma);
1154         mbox_cmd[4] = sizeof(struct about_fw_info);
1155
1156         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
1157                                          &mbox_cmd[0], &mbox_sts[0]);
1158         if (status != QLA_SUCCESS) {
1159                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_ABOUT_FW "
1160                                   "failed w/ status %04X\n", __func__,
1161                                   mbox_sts[0]));
1162                 goto exit_about_fw;
1163         }
1164
1165         /* Save version information. */
1166         ha->firmware_version[0] = le16_to_cpu(about_fw->fw_major);
1167         ha->firmware_version[1] = le16_to_cpu(about_fw->fw_minor);
1168         ha->patch_number = le16_to_cpu(about_fw->fw_patch);
1169         ha->build_number = le16_to_cpu(about_fw->fw_build);
1170         ha->iscsi_major = le16_to_cpu(about_fw->iscsi_major);
1171         ha->iscsi_minor = le16_to_cpu(about_fw->iscsi_minor);
1172         ha->bootload_major = le16_to_cpu(about_fw->bootload_major);
1173         ha->bootload_minor = le16_to_cpu(about_fw->bootload_minor);
1174         ha->bootload_patch = le16_to_cpu(about_fw->bootload_patch);
1175         ha->bootload_build = le16_to_cpu(about_fw->bootload_build);
1176         status = QLA_SUCCESS;
1177
1178 exit_about_fw:
1179         dma_free_coherent(&ha->pdev->dev, sizeof(struct about_fw_info),
1180                           about_fw, about_fw_dma);
1181         return status;
1182 }
1183
1184 static int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, uint32_t options,
1185                                    dma_addr_t dma_addr)
1186 {
1187         uint32_t mbox_cmd[MBOX_REG_COUNT];
1188         uint32_t mbox_sts[MBOX_REG_COUNT];
1189
1190         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1191         memset(&mbox_sts, 0, sizeof(mbox_sts));
1192
1193         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS;
1194         mbox_cmd[1] = options;
1195         mbox_cmd[2] = LSDW(dma_addr);
1196         mbox_cmd[3] = MSDW(dma_addr);
1197
1198         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) !=
1199             QLA_SUCCESS) {
1200                 DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
1201                      ha->host_no, __func__, mbox_sts[0]));
1202                 return QLA_ERROR;
1203         }
1204         return QLA_SUCCESS;
1205 }
1206
1207 int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index,
1208                           uint32_t *mbx_sts)
1209 {
1210         int status;
1211         uint32_t mbox_cmd[MBOX_REG_COUNT];
1212         uint32_t mbox_sts[MBOX_REG_COUNT];
1213
1214         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1215         memset(&mbox_sts, 0, sizeof(mbox_sts));
1216
1217         mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY;
1218         mbox_cmd[1] = ddb_index;
1219
1220         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1221                                          &mbox_sts[0]);
1222         if (status != QLA_SUCCESS) {
1223                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1224                                    __func__, mbox_sts[0]));
1225         }
1226
1227         *mbx_sts = mbox_sts[0];
1228         return status;
1229 }
1230
1231 int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index)
1232 {
1233         int status;
1234         uint32_t mbox_cmd[MBOX_REG_COUNT];
1235         uint32_t mbox_sts[MBOX_REG_COUNT];
1236
1237         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1238         memset(&mbox_sts, 0, sizeof(mbox_sts));
1239
1240         mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY;
1241         mbox_cmd[1] = ddb_index;
1242
1243         status = qla4xxx_mailbox_command(ha, 2, 1, &mbox_cmd[0],
1244                                          &mbox_sts[0]);
1245         if (status != QLA_SUCCESS) {
1246                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1247                                    __func__, mbox_sts[0]));
1248         }
1249
1250         return status;
1251 }
1252
1253 int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr,
1254                       uint32_t offset, uint32_t length, uint32_t options)
1255 {
1256         uint32_t mbox_cmd[MBOX_REG_COUNT];
1257         uint32_t mbox_sts[MBOX_REG_COUNT];
1258         int status = QLA_SUCCESS;
1259
1260         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1261         memset(&mbox_sts, 0, sizeof(mbox_sts));
1262
1263         mbox_cmd[0] = MBOX_CMD_WRITE_FLASH;
1264         mbox_cmd[1] = LSDW(dma_addr);
1265         mbox_cmd[2] = MSDW(dma_addr);
1266         mbox_cmd[3] = offset;
1267         mbox_cmd[4] = length;
1268         mbox_cmd[5] = options;
1269
1270         status = qla4xxx_mailbox_command(ha, 6, 2, &mbox_cmd[0], &mbox_sts[0]);
1271         if (status != QLA_SUCCESS) {
1272                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_WRITE_FLASH "
1273                                   "failed w/ status %04X, mbx1 %04X\n",
1274                                   __func__, mbox_sts[0], mbox_sts[1]));
1275         }
1276         return status;
1277 }
1278
1279 int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha,
1280                             struct dev_db_entry *fw_ddb_entry,
1281                             dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
1282 {
1283         uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
1284         uint32_t dev_db_end_offset;
1285         int status = QLA_ERROR;
1286
1287         memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1288
1289         dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
1290         dev_db_end_offset = FLASH_OFFSET_DB_END;
1291
1292         if (dev_db_start_offset > dev_db_end_offset) {
1293                 DEBUG2(ql4_printk(KERN_ERR, ha,
1294                                   "%s:Invalid DDB index %d", __func__,
1295                                   ddb_index));
1296                 goto exit_bootdb_failed;
1297         }
1298
1299         if (qla4xxx_get_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
1300                               sizeof(*fw_ddb_entry)) != QLA_SUCCESS) {
1301                 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
1302                            "failed\n", ha->host_no, __func__);
1303                 goto exit_bootdb_failed;
1304         }
1305
1306         if (fw_ddb_entry->cookie == DDB_VALID_COOKIE)
1307                 status = QLA_SUCCESS;
1308
1309 exit_bootdb_failed:
1310         return status;
1311 }
1312
1313 int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username, char *password,
1314                      uint16_t idx)
1315 {
1316         int ret = 0;
1317         int rval = QLA_ERROR;
1318         uint32_t offset = 0, chap_size;
1319         struct ql4_chap_table *chap_table;
1320         dma_addr_t chap_dma;
1321
1322         chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1323         if (chap_table == NULL) {
1324                 ret = -ENOMEM;
1325                 goto exit_get_chap;
1326         }
1327
1328         chap_size = sizeof(struct ql4_chap_table);
1329         memset(chap_table, 0, chap_size);
1330
1331         if (is_qla40XX(ha))
1332                 offset = FLASH_CHAP_OFFSET | (idx * chap_size);
1333         else {
1334                 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
1335                 /* flt_chap_size is CHAP table size for both ports
1336                  * so divide it by 2 to calculate the offset for second port
1337                  */
1338                 if (ha->port_num == 1)
1339                         offset += (ha->hw.flt_chap_size / 2);
1340                 offset += (idx * chap_size);
1341         }
1342
1343         rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
1344         if (rval != QLA_SUCCESS) {
1345                 ret = -EINVAL;
1346                 goto exit_get_chap;
1347         }
1348
1349         DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
1350                 __le16_to_cpu(chap_table->cookie)));
1351
1352         if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
1353                 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
1354                 goto exit_get_chap;
1355         }
1356
1357         strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
1358         strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
1359         chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
1360
1361 exit_get_chap:
1362         dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1363         return ret;
1364 }
1365
1366 static int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username,
1367                             char *password, uint16_t idx, int bidi)
1368 {
1369         int ret = 0;
1370         int rval = QLA_ERROR;
1371         uint32_t offset = 0;
1372         struct ql4_chap_table *chap_table;
1373         dma_addr_t chap_dma;
1374
1375         chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1376         if (chap_table == NULL) {
1377                 ret =  -ENOMEM;
1378                 goto exit_set_chap;
1379         }
1380
1381         memset(chap_table, 0, sizeof(struct ql4_chap_table));
1382         if (bidi)
1383                 chap_table->flags |= BIT_6; /* peer */
1384         else
1385                 chap_table->flags |= BIT_7; /* local */
1386         chap_table->secret_len = strlen(password);
1387         strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN);
1388         strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN);
1389         chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
1390         offset = FLASH_CHAP_OFFSET | (idx * sizeof(struct ql4_chap_table));
1391         rval = qla4xxx_set_flash(ha, chap_dma, offset,
1392                                 sizeof(struct ql4_chap_table),
1393                                 FLASH_OPT_RMW_COMMIT);
1394
1395         if (rval == QLA_SUCCESS && ha->chap_list) {
1396                 /* Update ha chap_list cache */
1397                 memcpy((struct ql4_chap_table *)ha->chap_list + idx,
1398                        chap_table, sizeof(struct ql4_chap_table));
1399         }
1400         dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1401         if (rval != QLA_SUCCESS)
1402                 ret =  -EINVAL;
1403
1404 exit_set_chap:
1405         return ret;
1406 }
1407
1408 /**
1409  * qla4xxx_get_chap_index - Get chap index given username and secret
1410  * @ha: pointer to adapter structure
1411  * @username: CHAP username to be searched
1412  * @password: CHAP password to be searched
1413  * @bidi: Is this a BIDI CHAP
1414  * @chap_index: CHAP index to be returned
1415  *
1416  * Match the username and password in the chap_list, return the index if a
1417  * match is found. If a match is not found then add the entry in FLASH and
1418  * return the index at which entry is written in the FLASH.
1419  **/
1420 static int qla4xxx_get_chap_index(struct scsi_qla_host *ha, char *username,
1421                             char *password, int bidi, uint16_t *chap_index)
1422 {
1423         int i, rval;
1424         int free_index = -1;
1425         int found_index = 0;
1426         int max_chap_entries = 0;
1427         struct ql4_chap_table *chap_table;
1428
1429         if (is_qla8022(ha))
1430                 max_chap_entries = (ha->hw.flt_chap_size / 2) /
1431                                                 sizeof(struct ql4_chap_table);
1432         else
1433                 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1434
1435         if (!ha->chap_list) {
1436                 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
1437                 return QLA_ERROR;
1438         }
1439
1440         mutex_lock(&ha->chap_sem);
1441         for (i = 0; i < max_chap_entries; i++) {
1442                 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
1443                 if (chap_table->cookie !=
1444                     __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
1445                         if (i > MAX_RESRV_CHAP_IDX && free_index == -1)
1446                                 free_index = i;
1447                         continue;
1448                 }
1449                 if (bidi) {
1450                         if (chap_table->flags & BIT_7)
1451                                 continue;
1452                 } else {
1453                         if (chap_table->flags & BIT_6)
1454                                 continue;
1455                 }
1456                 if (!strncmp(chap_table->secret, password,
1457                              MAX_CHAP_SECRET_LEN) &&
1458                     !strncmp(chap_table->name, username,
1459                              MAX_CHAP_NAME_LEN)) {
1460                         *chap_index = i;
1461                         found_index = 1;
1462                         break;
1463                 }
1464         }
1465
1466         /* If chap entry is not present and a free index is available then
1467          * write the entry in flash
1468          */
1469         if (!found_index && free_index != -1) {
1470                 rval = qla4xxx_set_chap(ha, username, password,
1471                                         free_index, bidi);
1472                 if (!rval) {
1473                         *chap_index = free_index;
1474                         found_index = 1;
1475                 }
1476         }
1477
1478         mutex_unlock(&ha->chap_sem);
1479
1480         if (found_index)
1481                 return QLA_SUCCESS;
1482         return QLA_ERROR;
1483 }
1484
1485 int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha,
1486                                    uint16_t fw_ddb_index,
1487                                    uint16_t connection_id,
1488                                    uint16_t option)
1489 {
1490         uint32_t mbox_cmd[MBOX_REG_COUNT];
1491         uint32_t mbox_sts[MBOX_REG_COUNT];
1492         int status = QLA_SUCCESS;
1493
1494         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1495         memset(&mbox_sts, 0, sizeof(mbox_sts));
1496
1497         mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
1498         mbox_cmd[1] = fw_ddb_index;
1499         mbox_cmd[2] = connection_id;
1500         mbox_cmd[3] = option;
1501
1502         status = qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]);
1503         if (status != QLA_SUCCESS) {
1504                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_CONN_CLOSE "
1505                                   "option %04x failed w/ status %04X %04X\n",
1506                                   __func__, option, mbox_sts[0], mbox_sts[1]));
1507         }
1508         return status;
1509 }
1510
1511 int qla4xxx_disable_acb(struct scsi_qla_host *ha)
1512 {
1513         uint32_t mbox_cmd[MBOX_REG_COUNT];
1514         uint32_t mbox_sts[MBOX_REG_COUNT];
1515         int status = QLA_SUCCESS;
1516
1517         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1518         memset(&mbox_sts, 0, sizeof(mbox_sts));
1519
1520         mbox_cmd[0] = MBOX_CMD_DISABLE_ACB;
1521
1522         status = qla4xxx_mailbox_command(ha, 8, 5, &mbox_cmd[0], &mbox_sts[0]);
1523         if (status != QLA_SUCCESS) {
1524                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_DISABLE_ACB "
1525                                   "failed w/ status %04X %04X %04X", __func__,
1526                                   mbox_sts[0], mbox_sts[1], mbox_sts[2]));
1527         }
1528         return status;
1529 }
1530
1531 int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t acb_dma,
1532                     uint32_t acb_type, uint32_t len)
1533 {
1534         uint32_t mbox_cmd[MBOX_REG_COUNT];
1535         uint32_t mbox_sts[MBOX_REG_COUNT];
1536         int status = QLA_SUCCESS;
1537
1538         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1539         memset(&mbox_sts, 0, sizeof(mbox_sts));
1540
1541         mbox_cmd[0] = MBOX_CMD_GET_ACB;
1542         mbox_cmd[1] = acb_type;
1543         mbox_cmd[2] = LSDW(acb_dma);
1544         mbox_cmd[3] = MSDW(acb_dma);
1545         mbox_cmd[4] = len;
1546
1547         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1548         if (status != QLA_SUCCESS) {
1549                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_GET_ACB "
1550                                   "failed w/ status %04X\n", __func__,
1551                                   mbox_sts[0]));
1552         }
1553         return status;
1554 }
1555
1556 int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
1557                     uint32_t *mbox_sts, dma_addr_t acb_dma)
1558 {
1559         int status = QLA_SUCCESS;
1560
1561         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1562         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1563         mbox_cmd[0] = MBOX_CMD_SET_ACB;
1564         mbox_cmd[1] = 0; /* Primary ACB */
1565         mbox_cmd[2] = LSDW(acb_dma);
1566         mbox_cmd[3] = MSDW(acb_dma);
1567         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
1568
1569         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1570         if (status != QLA_SUCCESS) {
1571                 DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: MBOX_CMD_SET_ACB "
1572                                   "failed w/ status %04X\n", __func__,
1573                                   mbox_sts[0]));
1574         }
1575         return status;
1576 }
1577
1578 int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha,
1579                                struct ddb_entry *ddb_entry,
1580                                struct iscsi_cls_conn *cls_conn,
1581                                uint32_t *mbx_sts)
1582 {
1583         struct dev_db_entry *fw_ddb_entry;
1584         struct iscsi_conn *conn;
1585         struct iscsi_session *sess;
1586         struct qla_conn *qla_conn;
1587         struct sockaddr *dst_addr;
1588         dma_addr_t fw_ddb_entry_dma;
1589         int status = QLA_SUCCESS;
1590         int rval = 0;
1591         struct sockaddr_in *addr;
1592         struct sockaddr_in6 *addr6;
1593         char *ip;
1594         uint16_t iscsi_opts = 0;
1595         uint32_t options = 0;
1596         uint16_t idx;
1597
1598         fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1599                                           &fw_ddb_entry_dma, GFP_KERNEL);
1600         if (!fw_ddb_entry) {
1601                 DEBUG2(ql4_printk(KERN_ERR, ha,
1602                                   "%s: Unable to allocate dma buffer.\n",
1603                                   __func__));
1604                 rval = -ENOMEM;
1605                 goto exit_set_param_no_free;
1606         }
1607
1608         conn = cls_conn->dd_data;
1609         qla_conn = conn->dd_data;
1610         sess = conn->session;
1611         dst_addr = &qla_conn->qla_ep->dst_addr;
1612
1613         if (dst_addr->sa_family == AF_INET6)
1614                 options |= IPV6_DEFAULT_DDB_ENTRY;
1615
1616         status = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
1617         if (status == QLA_ERROR) {
1618                 rval = -EINVAL;
1619                 goto exit_set_param;
1620         }
1621
1622         iscsi_opts = le16_to_cpu(fw_ddb_entry->iscsi_options);
1623         memset(fw_ddb_entry->iscsi_alias, 0, sizeof(fw_ddb_entry->iscsi_alias));
1624
1625         memset(fw_ddb_entry->iscsi_name, 0, sizeof(fw_ddb_entry->iscsi_name));
1626
1627         if (sess->targetname != NULL) {
1628                 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
1629                        min(strlen(sess->targetname),
1630                        sizeof(fw_ddb_entry->iscsi_name)));
1631         }
1632
1633         memset(fw_ddb_entry->ip_addr, 0, sizeof(fw_ddb_entry->ip_addr));
1634         memset(fw_ddb_entry->tgt_addr, 0, sizeof(fw_ddb_entry->tgt_addr));
1635
1636         fw_ddb_entry->options =  DDB_OPT_TARGET | DDB_OPT_AUTO_SENDTGTS_DISABLE;
1637
1638         if (dst_addr->sa_family == AF_INET) {
1639                 addr = (struct sockaddr_in *)dst_addr;
1640                 ip = (char *)&addr->sin_addr;
1641                 memcpy(fw_ddb_entry->ip_addr, ip, IP_ADDR_LEN);
1642                 fw_ddb_entry->port = cpu_to_le16(ntohs(addr->sin_port));
1643                 DEBUG2(ql4_printk(KERN_INFO, ha,
1644                                   "%s: Destination Address [%pI4]: index [%d]\n",
1645                                    __func__, fw_ddb_entry->ip_addr,
1646                                   ddb_entry->fw_ddb_index));
1647         } else if (dst_addr->sa_family == AF_INET6) {
1648                 addr6 = (struct sockaddr_in6 *)dst_addr;
1649                 ip = (char *)&addr6->sin6_addr;
1650                 memcpy(fw_ddb_entry->ip_addr, ip, IPv6_ADDR_LEN);
1651                 fw_ddb_entry->port = cpu_to_le16(ntohs(addr6->sin6_port));
1652                 fw_ddb_entry->options |= DDB_OPT_IPV6_DEVICE;
1653                 DEBUG2(ql4_printk(KERN_INFO, ha,
1654                                   "%s: Destination Address [%pI6]: index [%d]\n",
1655                                    __func__, fw_ddb_entry->ip_addr,
1656                                   ddb_entry->fw_ddb_index));
1657         } else {
1658                 ql4_printk(KERN_ERR, ha,
1659                            "%s: Failed to get IP Address\n",
1660                            __func__);
1661                 rval = -EINVAL;
1662                 goto exit_set_param;
1663         }
1664
1665         /* CHAP */
1666         if (sess->username != NULL && sess->password != NULL) {
1667                 if (strlen(sess->username) && strlen(sess->password)) {
1668                         iscsi_opts |= BIT_7;
1669
1670                         rval = qla4xxx_get_chap_index(ha, sess->username,
1671                                                 sess->password,
1672                                                 LOCAL_CHAP, &idx);
1673                         if (rval)
1674                                 goto exit_set_param;
1675
1676                         fw_ddb_entry->chap_tbl_idx = cpu_to_le16(idx);
1677                 }
1678         }
1679
1680         if (sess->username_in != NULL && sess->password_in != NULL) {
1681                 /* Check if BIDI CHAP */
1682                 if (strlen(sess->username_in) && strlen(sess->password_in)) {
1683                         iscsi_opts |= BIT_4;
1684
1685                         rval = qla4xxx_get_chap_index(ha, sess->username_in,
1686                                                       sess->password_in,
1687                                                       BIDI_CHAP, &idx);
1688                         if (rval)
1689                                 goto exit_set_param;
1690                 }
1691         }
1692
1693         if (sess->initial_r2t_en)
1694                 iscsi_opts |= BIT_10;
1695
1696         if (sess->imm_data_en)
1697                 iscsi_opts |= BIT_11;
1698
1699         fw_ddb_entry->iscsi_options = cpu_to_le16(iscsi_opts);
1700
1701         if (conn->max_recv_dlength)
1702                 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
1703                   __constant_cpu_to_le16((conn->max_recv_dlength / BYTE_UNITS));
1704
1705         if (sess->max_r2t)
1706                 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
1707
1708         if (sess->first_burst)
1709                 fw_ddb_entry->iscsi_first_burst_len =
1710                        __constant_cpu_to_le16((sess->first_burst / BYTE_UNITS));
1711
1712         if (sess->max_burst)
1713                 fw_ddb_entry->iscsi_max_burst_len =
1714                         __constant_cpu_to_le16((sess->max_burst / BYTE_UNITS));
1715
1716         if (sess->time2wait)
1717                 fw_ddb_entry->iscsi_def_time2wait =
1718                         cpu_to_le16(sess->time2wait);
1719
1720         if (sess->time2retain)
1721                 fw_ddb_entry->iscsi_def_time2retain =
1722                         cpu_to_le16(sess->time2retain);
1723
1724         status = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
1725                                        fw_ddb_entry_dma, mbx_sts);
1726
1727         if (status != QLA_SUCCESS)
1728                 rval = -EINVAL;
1729 exit_set_param:
1730         dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1731                           fw_ddb_entry, fw_ddb_entry_dma);
1732 exit_set_param_no_free:
1733         return rval;
1734 }
1735
1736 int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
1737                           uint16_t stats_size, dma_addr_t stats_dma)
1738 {
1739         int status = QLA_SUCCESS;
1740         uint32_t mbox_cmd[MBOX_REG_COUNT];
1741         uint32_t mbox_sts[MBOX_REG_COUNT];
1742
1743         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1744         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1745         mbox_cmd[0] = MBOX_CMD_GET_MANAGEMENT_DATA;
1746         mbox_cmd[1] = fw_ddb_index;
1747         mbox_cmd[2] = LSDW(stats_dma);
1748         mbox_cmd[3] = MSDW(stats_dma);
1749         mbox_cmd[4] = stats_size;
1750
1751         status = qla4xxx_mailbox_command(ha, 5, 1, &mbox_cmd[0], &mbox_sts[0]);
1752         if (status != QLA_SUCCESS) {
1753                 DEBUG2(ql4_printk(KERN_WARNING, ha,
1754                                   "%s: MBOX_CMD_GET_MANAGEMENT_DATA "
1755                                   "failed w/ status %04X\n", __func__,
1756                                   mbox_sts[0]));
1757         }
1758         return status;
1759 }
1760
1761 int qla4xxx_get_ip_state(struct scsi_qla_host *ha, uint32_t acb_idx,
1762                          uint32_t ip_idx, uint32_t *sts)
1763 {
1764         uint32_t mbox_cmd[MBOX_REG_COUNT];
1765         uint32_t mbox_sts[MBOX_REG_COUNT];
1766         int status = QLA_SUCCESS;
1767
1768         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1769         memset(&mbox_sts, 0, sizeof(mbox_sts));
1770         mbox_cmd[0] = MBOX_CMD_GET_IP_ADDR_STATE;
1771         mbox_cmd[1] = acb_idx;
1772         mbox_cmd[2] = ip_idx;
1773
1774         status = qla4xxx_mailbox_command(ha, 3, 8, &mbox_cmd[0], &mbox_sts[0]);
1775         if (status != QLA_SUCCESS) {
1776                 DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: "
1777                                   "MBOX_CMD_GET_IP_ADDR_STATE failed w/ "
1778                                   "status %04X\n", __func__, mbox_sts[0]));
1779         }
1780         memcpy(sts, mbox_sts, sizeof(mbox_sts));
1781         return status;
1782 }
1783
1784 int qla4xxx_get_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
1785                       uint32_t offset, uint32_t size)
1786 {
1787         int status = QLA_SUCCESS;
1788         uint32_t mbox_cmd[MBOX_REG_COUNT];
1789         uint32_t mbox_sts[MBOX_REG_COUNT];
1790
1791         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1792         memset(&mbox_sts, 0, sizeof(mbox_sts));
1793
1794         mbox_cmd[0] = MBOX_CMD_GET_NVRAM;
1795         mbox_cmd[1] = LSDW(nvram_dma);
1796         mbox_cmd[2] = MSDW(nvram_dma);
1797         mbox_cmd[3] = offset;
1798         mbox_cmd[4] = size;
1799
1800         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1801                                          &mbox_sts[0]);
1802         if (status != QLA_SUCCESS) {
1803                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1804                                   "status %04X\n", ha->host_no, __func__,
1805                                   mbox_sts[0]));
1806         }
1807         return status;
1808 }
1809
1810 int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
1811                       uint32_t offset, uint32_t size)
1812 {
1813         int status = QLA_SUCCESS;
1814         uint32_t mbox_cmd[MBOX_REG_COUNT];
1815         uint32_t mbox_sts[MBOX_REG_COUNT];
1816
1817         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1818         memset(&mbox_sts, 0, sizeof(mbox_sts));
1819
1820         mbox_cmd[0] = MBOX_CMD_SET_NVRAM;
1821         mbox_cmd[1] = LSDW(nvram_dma);
1822         mbox_cmd[2] = MSDW(nvram_dma);
1823         mbox_cmd[3] = offset;
1824         mbox_cmd[4] = size;
1825
1826         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1827                                          &mbox_sts[0]);
1828         if (status != QLA_SUCCESS) {
1829                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1830                                   "status %04X\n", ha->host_no, __func__,
1831                                   mbox_sts[0]));
1832         }
1833         return status;
1834 }
1835
1836 int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
1837                                      uint32_t region, uint32_t field0,
1838                                      uint32_t field1)
1839 {
1840         int status = QLA_SUCCESS;
1841         uint32_t mbox_cmd[MBOX_REG_COUNT];
1842         uint32_t mbox_sts[MBOX_REG_COUNT];
1843
1844         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1845         memset(&mbox_sts, 0, sizeof(mbox_sts));
1846
1847         mbox_cmd[0] = MBOX_CMD_RESTORE_FACTORY_DEFAULTS;
1848         mbox_cmd[3] = region;
1849         mbox_cmd[4] = field0;
1850         mbox_cmd[5] = field1;
1851
1852         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0],
1853                                          &mbox_sts[0]);
1854         if (status != QLA_SUCCESS) {
1855                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
1856                                   "status %04X\n", ha->host_no, __func__,
1857                                   mbox_sts[0]));
1858         }
1859         return status;
1860 }