drivers/scsi/qla4xxx/ql4_mbx.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * QLogic iSCSI HBA Driver
   4  * Copyright (c)  2003-2013 QLogic Corporation
   5  */
   6
   7 #include <linux/ctype.h>
   8 #include "ql4_def.h"
   9 #include "ql4_glbl.h"
  10 #include "ql4_dbg.h"
  11 #include "ql4_inline.h"
  12 #include "ql4_version.h"
  13
  14 void qla4xxx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
  15                             int in_count)
  16 {
  17         int i;
  18
  19         /* Load all mailbox registers, except mailbox 0. */
  20         for (i = 1; i < in_count; i++)
  21                 writel(mbx_cmd[i], &ha->reg->mailbox[i]);
  22
  23         /* Wakeup firmware  */
  24         writel(mbx_cmd[0], &ha->reg->mailbox[0]);
  25         readl(&ha->reg->mailbox[0]);
  26         writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status);
  27         readl(&ha->reg->ctrl_status);
  28 }
  29
  30 void qla4xxx_process_mbox_intr(struct scsi_qla_host *ha, int out_count)
  31 {
  32         int intr_status;
  33
  34         intr_status = readl(&ha->reg->ctrl_status);
  35         if (intr_status & INTR_PENDING) {
  36                 /*
  37                  * Service the interrupt.
  38                  * The ISR will save the mailbox status registers
  39                  * to a temporary storage location in the adapter structure.
  40                  */
  41                 ha->mbox_status_count = out_count;
  42                 ha->isp_ops->interrupt_service_routine(ha, intr_status);
  43         }
  44 }
  45
  46 /**
  47  * qla4xxx_is_intr_poll_mode - Are we allowed to poll for interrupts?
  48  * @ha: Pointer to host adapter structure.
  49  * returns: 1=polling mode, 0=non-polling mode
  50  **/
  51 static int qla4xxx_is_intr_poll_mode(struct scsi_qla_host *ha)
  52 {
  53         int rval = 1;
  54
  55         if (is_qla8032(ha) || is_qla8042(ha)) {
  56                 if (test_bit(AF_IRQ_ATTACHED, &ha->flags) &&
  57                     test_bit(AF_83XX_MBOX_INTR_ON, &ha->flags))
  58                         rval = 0;
  59         } else {
  60                 if (test_bit(AF_IRQ_ATTACHED, &ha->flags) &&
  61                     test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
  62                     test_bit(AF_ONLINE, &ha->flags) &&
  63                     !test_bit(AF_HA_REMOVAL, &ha->flags))
  64                         rval = 0;
  65         }
  66
  67         return rval;
  68 }
  69
  70 /**
  71  * qla4xxx_mailbox_command - issues mailbox commands
  72  * @ha: Pointer to host adapter structure.
  73  * @inCount: number of mailbox registers to load.
  74  * @outCount: number of mailbox registers to return.
  75  * @mbx_cmd: data pointer for mailbox in registers.
  76  * @mbx_sts: data pointer for mailbox out registers.
  77  *
  78  * This routine issue mailbox commands and waits for completion.
  79  * If outCount is 0, this routine completes successfully WITHOUT waiting
  80  * for the mailbox command to complete.
  81  **/
  82 int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
  83                             uint8_t outCount, uint32_t *mbx_cmd,
  84                             uint32_t *mbx_sts)
  85 {
  86         int status = QLA_ERROR;
  87         uint8_t i;
  88         u_long wait_count;
  89         unsigned long flags = 0;
  90         uint32_t dev_state;
  91
  92         /* Make sure that pointers are valid */
  93         if (!mbx_cmd || !mbx_sts) {
  94                 DEBUG2(printk("scsi%ld: %s: Invalid mbx_cmd or mbx_sts "
  95                               "pointer\n", ha->host_no, __func__));
  96                 return status;
  97         }
  98
  99         if (is_qla40XX(ha)) {
 100                 if (test_bit(AF_HA_REMOVAL, &ha->flags)) {
 101                         DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
 102                                           "prematurely completing mbx cmd as "
 103                                           "adapter removal detected\n",
 104                                           ha->host_no, __func__));
 105                         return status;
 106                 }
 107         }
 108
 109         if ((is_aer_supported(ha)) &&
 110             (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))) {
 111                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Perm failure on EEH, "
 112                     "timeout MBX Exiting.\n", ha->host_no, __func__));
 113                 return status;
 114         }
 115
 116         /* Mailbox code active */
 117         wait_count = MBOX_TOV * 100;
 118
 119         while (wait_count--) {
 120                 mutex_lock(&ha->mbox_sem);
 121                 if (!test_bit(AF_MBOX_COMMAND, &ha->flags)) {
 122                         set_bit(AF_MBOX_COMMAND, &ha->flags);
 123                         mutex_unlock(&ha->mbox_sem);
 124                         break;
 125                 }
 126                 mutex_unlock(&ha->mbox_sem);
 127                 if (!wait_count) {
 128                         DEBUG2(printk("scsi%ld: %s: mbox_sem failed\n",
 129                                 ha->host_no, __func__));
 130                         return status;
 131                 }
 132                 msleep(10);
 133         }
 134
 135         if (is_qla80XX(ha)) {
 136                 if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
 137                         DEBUG2(ql4_printk(KERN_WARNING, ha,
 138                                           "scsi%ld: %s: prematurely completing mbx cmd as firmware recovery detected\n",
 139                                           ha->host_no, __func__));
 140                         goto mbox_exit;
 141                 }
 142                 /* Do not send any mbx cmd if h/w is in failed state*/
 143                 ha->isp_ops->idc_lock(ha);
 144                 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
 145                 ha->isp_ops->idc_unlock(ha);
 146                 if (dev_state == QLA8XXX_DEV_FAILED) {
 147                         ql4_printk(KERN_WARNING, ha,
 148                                    "scsi%ld: %s: H/W is in failed state, do not send any mailbox commands\n",
 149                                    ha->host_no, __func__);
 150                         goto mbox_exit;
 151                 }
 152         }
 153
 154         spin_lock_irqsave(&ha->hardware_lock, flags);
 155
 156         ha->mbox_status_count = outCount;
 157         for (i = 0; i < outCount; i++)
 158                 ha->mbox_status[i] = 0;
 159
 160         /* Queue the mailbox command to the firmware */
 161         ha->isp_ops->queue_mailbox_command(ha, mbx_cmd, inCount);
 162
 163         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 164
 165         /* Wait for completion */
 166
 167         /*
 168          * If we don't want status, don't wait for the mailbox command to
 169          * complete.  For example, MBOX_CMD_RESET_FW doesn't return status,
 170          * you must poll the inbound Interrupt Mask for completion.
 171          */
 172         if (outCount == 0) {
 173                 status = QLA_SUCCESS;
 174                 goto mbox_exit;
 175         }
 176
 177         /*
 178          * Wait for completion: Poll or completion queue
 179          */
 180         if (qla4xxx_is_intr_poll_mode(ha)) {
 181                 /* Poll for command to complete */
 182                 wait_count = jiffies + MBOX_TOV * HZ;
 183                 while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) {
 184                         if (time_after_eq(jiffies, wait_count))
 185                                 break;
 186                         /*
 187                          * Service the interrupt.
 188                          * The ISR will save the mailbox status registers
 189                          * to a temporary storage location in the adapter
 190                          * structure.
 191                          */
 192                         spin_lock_irqsave(&ha->hardware_lock, flags);
 193                         ha->isp_ops->process_mailbox_interrupt(ha, outCount);
 194                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 195                         msleep(10);
 196                 }
 197         } else {
 198                 /* Do not poll for completion. Use completion queue */
 199                 set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
 200                 wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ);
 201                 clear_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
 202         }
 203
 204         /* Check for mailbox timeout. */
 205         if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) {
 206                 if (is_qla80XX(ha) &&
 207                     test_bit(AF_FW_RECOVERY, &ha->flags)) {
 208                         DEBUG2(ql4_printk(KERN_INFO, ha,
 209                             "scsi%ld: %s: prematurely completing mbx cmd as "
 210                             "firmware recovery detected\n",
 211                             ha->host_no, __func__));
 212                         goto mbox_exit;
 213                 }
 214                 ql4_printk(KERN_WARNING, ha, "scsi%ld: Mailbox Cmd 0x%08X timed out, Scheduling Adapter Reset\n",
 215                            ha->host_no, mbx_cmd[0]);
 216                 ha->mailbox_timeout_count++;
 217                 mbx_sts[0] = (-1);
 218                 set_bit(DPC_RESET_HA, &ha->dpc_flags);
 219                 if (is_qla8022(ha)) {
 220                         ql4_printk(KERN_INFO, ha,
 221                                    "disabling pause transmit on port 0 & 1.\n");
 222                         qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
 223                                         CRB_NIU_XG_PAUSE_CTL_P0 |
 224                                         CRB_NIU_XG_PAUSE_CTL_P1);
 225                 } else if (is_qla8032(ha) || is_qla8042(ha)) {
 226                         ql4_printk(KERN_INFO, ha, " %s: disabling pause transmit on port 0 & 1.\n",
 227                                    __func__);
 228                         qla4_83xx_disable_pause(ha);
 229                 }
 230                 goto mbox_exit;
 231         }
 232
 233         /*
 234          * Copy the mailbox out registers to the caller's mailbox in/out
 235          * structure.
 236          */
 237         spin_lock_irqsave(&ha->hardware_lock, flags);
 238         for (i = 0; i < outCount; i++)
 239                 mbx_sts[i] = ha->mbox_status[i];
 240
 241         /* Set return status and error flags (if applicable). */
 242         switch (ha->mbox_status[0]) {
 243         case MBOX_STS_COMMAND_COMPLETE:
 244                 status = QLA_SUCCESS;
 245                 break;
 246
 247         case MBOX_STS_INTERMEDIATE_COMPLETION:
 248                 status = QLA_SUCCESS;
 249                 break;
 250
 251         case MBOX_STS_BUSY:
 252                 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Cmd = %08X, ISP BUSY\n",
 253                            ha->host_no, __func__, mbx_cmd[0]);
 254                 ha->mailbox_timeout_count++;
 255                 break;
 256
 257         default:
 258                 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: FAILED, MBOX CMD = %08X, MBOX STS = %08X %08X %08X %08X %08X %08X %08X %08X\n",
 259                            ha->host_no, __func__, mbx_cmd[0], mbx_sts[0],
 260                            mbx_sts[1], mbx_sts[2], mbx_sts[3], mbx_sts[4],
 261                            mbx_sts[5], mbx_sts[6], mbx_sts[7]);
 262                 break;
 263         }
 264         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 265
 266 mbox_exit:
 267         mutex_lock(&ha->mbox_sem);
 268         clear_bit(AF_MBOX_COMMAND, &ha->flags);
 269         mutex_unlock(&ha->mbox_sem);
 270         clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
 271
 272         return status;
 273 }
 274
 275 /**
 276  * qla4xxx_get_minidump_template - Get the firmware template
 277  * @ha: Pointer to host adapter structure.
 278  * @phys_addr: dma address for template
 279  *
 280  * Obtain the minidump template from firmware during initialization
 281  * as it may not be available when minidump is desired.
 282  **/
 283 int qla4xxx_get_minidump_template(struct scsi_qla_host *ha,
 284                                   dma_addr_t phys_addr)
 285 {
 286         uint32_t mbox_cmd[MBOX_REG_COUNT];
 287         uint32_t mbox_sts[MBOX_REG_COUNT];
 288         int status;
 289
 290         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 291         memset(&mbox_sts, 0, sizeof(mbox_sts));
 292
 293         mbox_cmd[0] = MBOX_CMD_MINIDUMP;
 294         mbox_cmd[1] = MINIDUMP_GET_TMPLT_SUBCOMMAND;
 295         mbox_cmd[2] = LSDW(phys_addr);
 296         mbox_cmd[3] = MSDW(phys_addr);
 297         mbox_cmd[4] = ha->fw_dump_tmplt_size;
 298         mbox_cmd[5] = 0;
 299
 300         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
 301                                          &mbox_sts[0]);
 302         if (status != QLA_SUCCESS) {
 303                 DEBUG2(ql4_printk(KERN_INFO, ha,
 304                                   "scsi%ld: %s: Cmd = %08X, mbx[0] = 0x%04x, mbx[1] = 0x%04x\n",
 305                                   ha->host_no, __func__, mbox_cmd[0],
 306                                   mbox_sts[0], mbox_sts[1]));
 307         }
 308         return status;
 309 }
 310
 311 /**
 312  * qla4xxx_req_template_size - Get minidump template size from firmware.
 313  * @ha: Pointer to host adapter structure.
 314  **/
 315 int qla4xxx_req_template_size(struct scsi_qla_host *ha)
 316 {
 317         uint32_t mbox_cmd[MBOX_REG_COUNT];
 318         uint32_t mbox_sts[MBOX_REG_COUNT];
 319         int status;
 320
 321         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 322         memset(&mbox_sts, 0, sizeof(mbox_sts));
 323
 324         mbox_cmd[0] = MBOX_CMD_MINIDUMP;
 325         mbox_cmd[1] = MINIDUMP_GET_SIZE_SUBCOMMAND;
 326
 327         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 8, &mbox_cmd[0],
 328                                          &mbox_sts[0]);
 329         if (status == QLA_SUCCESS) {
 330                 ha->fw_dump_tmplt_size = mbox_sts[1];
 331                 DEBUG2(ql4_printk(KERN_INFO, ha,
 332                                   "%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",
 333                                   __func__, mbox_sts[0], mbox_sts[1],
 334                                   mbox_sts[2], mbox_sts[3], mbox_sts[4],
 335                                   mbox_sts[5], mbox_sts[6], mbox_sts[7]));
 336                 if (ha->fw_dump_tmplt_size == 0)
 337                         status = QLA_ERROR;
 338         } else {
 339                 ql4_printk(KERN_WARNING, ha,
 340                            "%s: Error sts[0]=0x%04x, mbx[1]=0x%04x\n",
 341                            __func__, mbox_sts[0], mbox_sts[1]);
 342                 status = QLA_ERROR;
 343         }
 344
 345         return status;
 346 }
 347
 348 void qla4xxx_mailbox_premature_completion(struct scsi_qla_host *ha)
 349 {
 350         set_bit(AF_FW_RECOVERY, &ha->flags);
 351         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: set FW RECOVERY!\n",
 352             ha->host_no, __func__);
 353
 354         if (test_bit(AF_MBOX_COMMAND, &ha->flags)) {
 355                 if (test_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags)) {
 356                         complete(&ha->mbx_intr_comp);
 357                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
 358                             "recovery, doing premature completion of "
 359                             "mbx cmd\n", ha->host_no, __func__);
 360
 361                 } else {
 362                         set_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
 363                         ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
 364                             "recovery, doing premature completion of "
 365                             "polling mbx cmd\n", ha->host_no, __func__);
 366                 }
 367         }
 368 }
 369
 370 static uint8_t
 371 qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
 372                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
 373 {
 374         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
 375         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
 376
 377         if (is_qla8022(ha))
 378                 qla4_82xx_wr_32(ha, ha->nx_db_wr_ptr, 0);
 379
 380         mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE;
 381         mbox_cmd[1] = 0;
 382         mbox_cmd[2] = LSDW(init_fw_cb_dma);
 383         mbox_cmd[3] = MSDW(init_fw_cb_dma);
 384         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
 385
 386         if (qla4xxx_mailbox_command(ha, 6, 6, mbox_cmd, mbox_sts) !=
 387             QLA_SUCCESS) {
 388                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
 389                               "MBOX_CMD_INITIALIZE_FIRMWARE"
 390                               " failed w/ status %04X\n",
 391                               ha->host_no, __func__, mbox_sts[0]));
 392                 return QLA_ERROR;
 393         }
 394         return QLA_SUCCESS;
 395 }
 396
 397 uint8_t
 398 qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
 399                  uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
 400 {
 401         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
 402         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
 403         mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK;
 404         mbox_cmd[2] = LSDW(init_fw_cb_dma);
 405         mbox_cmd[3] = MSDW(init_fw_cb_dma);
 406         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
 407
 408         if (qla4xxx_mailbox_command(ha, 5, 5, mbox_cmd, mbox_sts) !=
 409             QLA_SUCCESS) {
 410                 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
 411                               "MBOX_CMD_GET_INIT_FW_CTRL_BLOCK"
 412                               " failed w/ status %04X\n",
 413                               ha->host_no, __func__, mbox_sts[0]));
 414                 return QLA_ERROR;
 415         }
 416         return QLA_SUCCESS;
 417 }
 418
 419 uint8_t qla4xxx_set_ipaddr_state(uint8_t fw_ipaddr_state)
 420 {
 421         uint8_t ipaddr_state;
 422
 423         switch (fw_ipaddr_state) {
 424         case IP_ADDRSTATE_UNCONFIGURED:
 425                 ipaddr_state = ISCSI_IPDDRESS_STATE_UNCONFIGURED;
 426                 break;
 427         case IP_ADDRSTATE_INVALID:
 428                 ipaddr_state = ISCSI_IPDDRESS_STATE_INVALID;
 429                 break;
 430         case IP_ADDRSTATE_ACQUIRING:
 431                 ipaddr_state = ISCSI_IPDDRESS_STATE_ACQUIRING;
 432                 break;
 433         case IP_ADDRSTATE_TENTATIVE:
 434                 ipaddr_state = ISCSI_IPDDRESS_STATE_TENTATIVE;
 435                 break;
 436         case IP_ADDRSTATE_DEPRICATED:
 437                 ipaddr_state = ISCSI_IPDDRESS_STATE_DEPRECATED;
 438                 break;
 439         case IP_ADDRSTATE_PREFERRED:
 440                 ipaddr_state = ISCSI_IPDDRESS_STATE_VALID;
 441                 break;
 442         case IP_ADDRSTATE_DISABLING:
 443                 ipaddr_state = ISCSI_IPDDRESS_STATE_DISABLING;
 444                 break;
 445         default:
 446                 ipaddr_state = ISCSI_IPDDRESS_STATE_UNCONFIGURED;
 447         }
 448         return ipaddr_state;
 449 }
 450
 451 static void
 452 qla4xxx_update_local_ip(struct scsi_qla_host *ha,
 453                         struct addr_ctrl_blk *init_fw_cb)
 454 {
 455         ha->ip_config.tcp_options = le16_to_cpu(init_fw_cb->ipv4_tcp_opts);
 456         ha->ip_config.ipv4_options = le16_to_cpu(init_fw_cb->ipv4_ip_opts);
 457         ha->ip_config.ipv4_addr_state =
 458                         qla4xxx_set_ipaddr_state(init_fw_cb->ipv4_addr_state);
 459         ha->ip_config.eth_mtu_size =
 460                                 le16_to_cpu(init_fw_cb->eth_mtu_size);
 461         ha->ip_config.ipv4_port = le16_to_cpu(init_fw_cb->ipv4_port);
 462
 463         if (ha->acb_version == ACB_SUPPORTED) {
 464                 ha->ip_config.ipv6_options = le16_to_cpu(init_fw_cb->ipv6_opts);
 465                 ha->ip_config.ipv6_addl_options =
 466                                 le16_to_cpu(init_fw_cb->ipv6_addtl_opts);
 467                 ha->ip_config.ipv6_tcp_options =
 468                                 le16_to_cpu(init_fw_cb->ipv6_tcp_opts);
 469         }
 470
 471         /* Save IPv4 Address Info */
 472         memcpy(ha->ip_config.ip_address, init_fw_cb->ipv4_addr,
 473                min(sizeof(ha->ip_config.ip_address),
 474                    sizeof(init_fw_cb->ipv4_addr)));
 475         memcpy(ha->ip_config.subnet_mask, init_fw_cb->ipv4_subnet,
 476                min(sizeof(ha->ip_config.subnet_mask),
 477                    sizeof(init_fw_cb->ipv4_subnet)));
 478         memcpy(ha->ip_config.gateway, init_fw_cb->ipv4_gw_addr,
 479                min(sizeof(ha->ip_config.gateway),
 480                    sizeof(init_fw_cb->ipv4_gw_addr)));
 481
 482         ha->ip_config.ipv4_vlan_tag = be16_to_cpu(init_fw_cb->ipv4_vlan_tag);
 483         ha->ip_config.control = init_fw_cb->control;
 484         ha->ip_config.tcp_wsf = init_fw_cb->ipv4_tcp_wsf;
 485         ha->ip_config.ipv4_tos = init_fw_cb->ipv4_tos;
 486         ha->ip_config.ipv4_cache_id = init_fw_cb->ipv4_cacheid;
 487         ha->ip_config.ipv4_alt_cid_len = init_fw_cb->ipv4_dhcp_alt_cid_len;
 488         memcpy(ha->ip_config.ipv4_alt_cid, init_fw_cb->ipv4_dhcp_alt_cid,
 489                min(sizeof(ha->ip_config.ipv4_alt_cid),
 490                    sizeof(init_fw_cb->ipv4_dhcp_alt_cid)));
 491         ha->ip_config.ipv4_vid_len = init_fw_cb->ipv4_dhcp_vid_len;
 492         memcpy(ha->ip_config.ipv4_vid, init_fw_cb->ipv4_dhcp_vid,
 493                min(sizeof(ha->ip_config.ipv4_vid),
 494                    sizeof(init_fw_cb->ipv4_dhcp_vid)));
 495         ha->ip_config.ipv4_ttl = init_fw_cb->ipv4_ttl;
 496         ha->ip_config.def_timeout = le16_to_cpu(init_fw_cb->def_timeout);
 497         ha->ip_config.abort_timer = init_fw_cb->abort_timer;
 498         ha->ip_config.iscsi_options = le16_to_cpu(init_fw_cb->iscsi_opts);
 499         ha->ip_config.iscsi_max_pdu_size =
 500                                 le16_to_cpu(init_fw_cb->iscsi_max_pdu_size);
 501         ha->ip_config.iscsi_first_burst_len =
 502                                 le16_to_cpu(init_fw_cb->iscsi_fburst_len);
 503         ha->ip_config.iscsi_max_outstnd_r2t =
 504                                 le16_to_cpu(init_fw_cb->iscsi_max_outstnd_r2t);
 505         ha->ip_config.iscsi_max_burst_len =
 506                                 le16_to_cpu(init_fw_cb->iscsi_max_burst_len);
 507         memcpy(ha->ip_config.iscsi_name, init_fw_cb->iscsi_name,
 508                min(sizeof(ha->ip_config.iscsi_name),
 509                    sizeof(init_fw_cb->iscsi_name)));
 510
 511         if (is_ipv6_enabled(ha)) {
 512                 /* Save IPv6 Address */
 513                 ha->ip_config.ipv6_link_local_state =
 514                   qla4xxx_set_ipaddr_state(init_fw_cb->ipv6_lnk_lcl_addr_state);
 515                 ha->ip_config.ipv6_addr0_state =
 516                         qla4xxx_set_ipaddr_state(init_fw_cb->ipv6_addr0_state);
 517                 ha->ip_config.ipv6_addr1_state =
 518                         qla4xxx_set_ipaddr_state(init_fw_cb->ipv6_addr1_state);
 519
 520                 switch (le16_to_cpu(init_fw_cb->ipv6_dflt_rtr_state)) {
 521                 case IPV6_RTRSTATE_UNKNOWN:
 522                         ha->ip_config.ipv6_default_router_state =
 523                                                 ISCSI_ROUTER_STATE_UNKNOWN;
 524                         break;
 525                 case IPV6_RTRSTATE_MANUAL:
 526                         ha->ip_config.ipv6_default_router_state =
 527                                                 ISCSI_ROUTER_STATE_MANUAL;
 528                         break;
 529                 case IPV6_RTRSTATE_ADVERTISED:
 530                         ha->ip_config.ipv6_default_router_state =
 531                                                 ISCSI_ROUTER_STATE_ADVERTISED;
 532                         break;
 533                 case IPV6_RTRSTATE_STALE:
 534                         ha->ip_config.ipv6_default_router_state =
 535                                                 ISCSI_ROUTER_STATE_STALE;
 536                         break;
 537                 default:
 538                         ha->ip_config.ipv6_default_router_state =
 539                                                 ISCSI_ROUTER_STATE_UNKNOWN;
 540                 }
 541
 542                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[0] = 0xFE;
 543                 ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[1] = 0x80;
 544
 545                 memcpy(&ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[8],
 546                        init_fw_cb->ipv6_if_id,
 547                        min(sizeof(ha->ip_config.ipv6_link_local_addr)/2,
 548                            sizeof(init_fw_cb->ipv6_if_id)));
 549                 memcpy(&ha->ip_config.ipv6_addr0, init_fw_cb->ipv6_addr0,
 550                        min(sizeof(ha->ip_config.ipv6_addr0),
 551                            sizeof(init_fw_cb->ipv6_addr0)));
 552                 memcpy(&ha->ip_config.ipv6_addr1, init_fw_cb->ipv6_addr1,
 553                        min(sizeof(ha->ip_config.ipv6_addr1),
 554                            sizeof(init_fw_cb->ipv6_addr1)));
 555                 memcpy(&ha->ip_config.ipv6_default_router_addr,
 556                        init_fw_cb->ipv6_dflt_rtr_addr,
 557                        min(sizeof(ha->ip_config.ipv6_default_router_addr),
 558                            sizeof(init_fw_cb->ipv6_dflt_rtr_addr)));
 559                 ha->ip_config.ipv6_vlan_tag =
 560                                 be16_to_cpu(init_fw_cb->ipv6_vlan_tag);
 561                 ha->ip_config.ipv6_port = le16_to_cpu(init_fw_cb->ipv6_port);
 562                 ha->ip_config.ipv6_cache_id = init_fw_cb->ipv6_cache_id;
 563                 ha->ip_config.ipv6_flow_lbl =
 564                                 le16_to_cpu(init_fw_cb->ipv6_flow_lbl);
 565                 ha->ip_config.ipv6_traffic_class =
 566                                 init_fw_cb->ipv6_traffic_class;
 567                 ha->ip_config.ipv6_hop_limit = init_fw_cb->ipv6_hop_limit;
 568                 ha->ip_config.ipv6_nd_reach_time =
 569                                 le32_to_cpu(init_fw_cb->ipv6_nd_reach_time);
 570                 ha->ip_config.ipv6_nd_rexmit_timer =
 571                                 le32_to_cpu(init_fw_cb->ipv6_nd_rexmit_timer);
 572                 ha->ip_config.ipv6_nd_stale_timeout =
 573                                 le32_to_cpu(init_fw_cb->ipv6_nd_stale_timeout);
 574                 ha->ip_config.ipv6_dup_addr_detect_count =
 575                                         init_fw_cb->ipv6_dup_addr_detect_count;
 576                 ha->ip_config.ipv6_gw_advrt_mtu =
 577                                 le32_to_cpu(init_fw_cb->ipv6_gw_advrt_mtu);
 578                 ha->ip_config.ipv6_tcp_wsf = init_fw_cb->ipv6_tcp_wsf;
 579         }
 580 }
 581
 582 uint8_t
 583 qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
 584                           uint32_t *mbox_cmd,
 585                           uint32_t *mbox_sts,
 586                           struct addr_ctrl_blk  *init_fw_cb,
 587                           dma_addr_t init_fw_cb_dma)
 588 {
 589         if (qla4xxx_get_ifcb(ha, mbox_cmd, mbox_sts, init_fw_cb_dma)
 590             != QLA_SUCCESS) {
 591                 DEBUG2(printk(KERN_WARNING
 592                               "scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
 593                               ha->host_no, __func__));
 594                 return QLA_ERROR;
 595         }
 596
 597         DEBUG2(qla4xxx_dump_buffer(init_fw_cb, sizeof(struct addr_ctrl_blk)));
 598
 599         /* Save some info in adapter structure. */
 600         ha->acb_version = init_fw_cb->acb_version;
 601         ha->firmware_options = le16_to_cpu(init_fw_cb->fw_options);
 602         ha->heartbeat_interval = init_fw_cb->hb_interval;
 603         memcpy(ha->name_string, init_fw_cb->iscsi_name,
 604                 min(sizeof(ha->name_string),
 605                 sizeof(init_fw_cb->iscsi_name)));
 606         ha->def_timeout = le16_to_cpu(init_fw_cb->def_timeout);
 607         /*memcpy(ha->alias, init_fw_cb->Alias,
 608                min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/
 609
 610         qla4xxx_update_local_ip(ha, init_fw_cb);
 611
 612         return QLA_SUCCESS;
 613 }
 614
 615 /**
 616  * qla4xxx_initialize_fw_cb - initializes firmware control block.
 617  * @ha: Pointer to host adapter structure.
 618  **/
 619 int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
 620 {
 621         struct addr_ctrl_blk *init_fw_cb;
 622         dma_addr_t init_fw_cb_dma;
 623         uint32_t mbox_cmd[MBOX_REG_COUNT];
 624         uint32_t mbox_sts[MBOX_REG_COUNT];
 625         int status = QLA_ERROR;
 626
 627         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
 628                                         sizeof(struct addr_ctrl_blk),
 629                                         &init_fw_cb_dma, GFP_KERNEL);
 630         if (init_fw_cb == NULL) {
 631                 DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n",
 632                               ha->host_no, __func__));
 633                 goto exit_init_fw_cb_no_free;
 634         }
 635
 636         /* Get Initialize Firmware Control Block. */
 637         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 638         memset(&mbox_sts, 0, sizeof(mbox_sts));
 639
 640         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
 641             QLA_SUCCESS) {
 642                 goto exit_init_fw_cb;
 643         }
 644
 645         /* Fill in the request and response queue information. */
 646         init_fw_cb->rqq_consumer_idx = cpu_to_le16(ha->request_out);
 647         init_fw_cb->compq_producer_idx = cpu_to_le16(ha->response_in);
 648         init_fw_cb->rqq_len = cpu_to_le16(REQUEST_QUEUE_DEPTH);
 649         init_fw_cb->compq_len = cpu_to_le16(RESPONSE_QUEUE_DEPTH);
 650         init_fw_cb->rqq_addr_lo = cpu_to_le32(LSDW(ha->request_dma));
 651         init_fw_cb->rqq_addr_hi = cpu_to_le32(MSDW(ha->request_dma));
 652         init_fw_cb->compq_addr_lo = cpu_to_le32(LSDW(ha->response_dma));
 653         init_fw_cb->compq_addr_hi = cpu_to_le32(MSDW(ha->response_dma));
 654         init_fw_cb->shdwreg_addr_lo = cpu_to_le32(LSDW(ha->shadow_regs_dma));
 655         init_fw_cb->shdwreg_addr_hi = cpu_to_le32(MSDW(ha->shadow_regs_dma));
 656
 657         /* Set up required options. */
 658         init_fw_cb->fw_options |=
 659                 cpu_to_le16(FWOPT_SESSION_MODE |
 660                             FWOPT_INITIATOR_MODE);
 661
 662         if (is_qla80XX(ha))
 663                 init_fw_cb->fw_options |=
 664                     cpu_to_le16(FWOPT_ENABLE_CRBDB);
 665
 666         init_fw_cb->fw_options &= cpu_to_le16(~FWOPT_TARGET_MODE);
 667
 668         init_fw_cb->add_fw_options = 0;
 669         init_fw_cb->add_fw_options |=
 670                         cpu_to_le16(ADFWOPT_SERIALIZE_TASK_MGMT);
 671         init_fw_cb->add_fw_options |=
 672                         cpu_to_le16(ADFWOPT_AUTOCONN_DISABLE);
 673
 674         if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)
 675                 != QLA_SUCCESS) {
 676                 DEBUG2(printk(KERN_WARNING
 677                               "scsi%ld: %s: Failed to set init_fw_ctrl_blk\n",
 678                               ha->host_no, __func__));
 679                 goto exit_init_fw_cb;
 680         }
 681
 682         if (qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0],
 683                 init_fw_cb, init_fw_cb_dma) != QLA_SUCCESS) {
 684                 DEBUG2(printk("scsi%ld: %s: Failed to update local ifcb\n",
 685                                 ha->host_no, __func__));
 686                 goto exit_init_fw_cb;
 687         }
 688         status = QLA_SUCCESS;
 689
 690 exit_init_fw_cb:
 691         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
 692                                 init_fw_cb, init_fw_cb_dma);
 693 exit_init_fw_cb_no_free:
 694         return status;
 695 }
 696
 697 /**
 698  * qla4xxx_get_dhcp_ip_address - gets HBA ip address via DHCP
 699  * @ha: Pointer to host adapter structure.
 700  **/
 701 int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
 702 {
 703         struct addr_ctrl_blk *init_fw_cb;
 704         dma_addr_t init_fw_cb_dma;
 705         uint32_t mbox_cmd[MBOX_REG_COUNT];
 706         uint32_t mbox_sts[MBOX_REG_COUNT];
 707
 708         init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
 709                                         sizeof(struct addr_ctrl_blk),
 710                                         &init_fw_cb_dma, GFP_KERNEL);
 711         if (init_fw_cb == NULL) {
 712                 printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no,
 713                        __func__);
 714                 return QLA_ERROR;
 715         }
 716
 717         /* Get Initialize Firmware Control Block. */
 718         if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
 719             QLA_SUCCESS) {
 720                 DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
 721                               ha->host_no, __func__));
 722                 dma_free_coherent(&ha->pdev->dev,
 723                                   sizeof(struct addr_ctrl_blk),
 724                                   init_fw_cb, init_fw_cb_dma);
 725                 return QLA_ERROR;
 726         }
 727
 728         /* Save IP Address. */
 729         qla4xxx_update_local_ip(ha, init_fw_cb);
 730         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
 731                                 init_fw_cb, init_fw_cb_dma);
 732
 733         return QLA_SUCCESS;
 734 }
 735
 736 /**
 737  * qla4xxx_get_firmware_state - gets firmware state of HBA
 738  * @ha: Pointer to host adapter structure.
 739  **/
 740 int qla4xxx_get_firmware_state(struct scsi_qla_host * ha)
 741 {
 742         uint32_t mbox_cmd[MBOX_REG_COUNT];
 743         uint32_t mbox_sts[MBOX_REG_COUNT];
 744
 745         /* Get firmware version */
 746         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 747         memset(&mbox_sts, 0, sizeof(mbox_sts));
 748
 749         mbox_cmd[0] = MBOX_CMD_GET_FW_STATE;
 750
 751         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 4, &mbox_cmd[0], &mbox_sts[0]) !=
 752             QLA_SUCCESS) {
 753                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ "
 754                               "status %04X\n", ha->host_no, __func__,
 755                               mbox_sts[0]));
 756                 return QLA_ERROR;
 757         }
 758         ha->firmware_state = mbox_sts[1];
 759         ha->board_id = mbox_sts[2];
 760         ha->addl_fw_state = mbox_sts[3];
 761         DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n",
 762                       ha->host_no, __func__, ha->firmware_state);)
 763
 764         return QLA_SUCCESS;
 765 }
 766
 767 /**
 768  * qla4xxx_get_firmware_status - retrieves firmware status
 769  * @ha: Pointer to host adapter structure.
 770  **/
 771 int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
 772 {
 773         uint32_t mbox_cmd[MBOX_REG_COUNT];
 774         uint32_t mbox_sts[MBOX_REG_COUNT];
 775
 776         /* Get firmware version */
 777         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 778         memset(&mbox_sts, 0, sizeof(mbox_sts));
 779
 780         mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS;
 781
 782         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) !=
 783             QLA_SUCCESS) {
 784                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ "
 785                               "status %04X\n", ha->host_no, __func__,
 786                               mbox_sts[0]));
 787                 return QLA_ERROR;
 788         }
 789
 790         /* High-water mark of IOCBs */
 791         ha->iocb_hiwat = mbox_sts[2];
 792         DEBUG2(ql4_printk(KERN_INFO, ha,
 793                           "%s: firmware IOCBs available = %d\n", __func__,
 794                           ha->iocb_hiwat));
 795
 796         if (ha->iocb_hiwat > IOCB_HIWAT_CUSHION)
 797                 ha->iocb_hiwat -= IOCB_HIWAT_CUSHION;
 798
 799         /* Ideally, we should not enter this code, as the # of firmware
 800          * IOCBs is hard-coded in the firmware. We set a default
 801          * iocb_hiwat here just in case */
 802         if (ha->iocb_hiwat == 0) {
 803                 ha->iocb_hiwat = REQUEST_QUEUE_DEPTH / 4;
 804                 DEBUG2(ql4_printk(KERN_WARNING, ha,
 805                                   "%s: Setting IOCB's to = %d\n", __func__,
 806                                   ha->iocb_hiwat));
 807         }
 808
 809         return QLA_SUCCESS;
 810 }
 811
 812 /*
 813  * qla4xxx_get_fwddb_entry - retrieves firmware ddb entry
 814  * @ha: Pointer to host adapter structure.
 815  * @fw_ddb_index: Firmware's device database index
 816  * @fw_ddb_entry: Pointer to firmware's device database entry structure
 817  * @num_valid_ddb_entries: Pointer to number of valid ddb entries
 818  * @next_ddb_index: Pointer to next valid device database index
 819  * @fw_ddb_device_state: Pointer to device state
 820  **/
 821 int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha,
 822                             uint16_t fw_ddb_index,
 823                             struct dev_db_entry *fw_ddb_entry,
 824                             dma_addr_t fw_ddb_entry_dma,
 825                             uint32_t *num_valid_ddb_entries,
 826                             uint32_t *next_ddb_index,
 827                             uint32_t *fw_ddb_device_state,
 828                             uint32_t *conn_err_detail,
 829                             uint16_t *tcp_source_port_num,
 830                             uint16_t *connection_id)
 831 {
 832         int status = QLA_ERROR;
 833         uint16_t options;
 834         uint32_t mbox_cmd[MBOX_REG_COUNT];
 835         uint32_t mbox_sts[MBOX_REG_COUNT];
 836
 837         /* Make sure the device index is valid */
 838         if (fw_ddb_index >= MAX_DDB_ENTRIES) {
 839                 DEBUG2(printk("scsi%ld: %s: ddb [%d] out of range.\n",
 840                               ha->host_no, __func__, fw_ddb_index));
 841                 goto exit_get_fwddb;
 842         }
 843         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 844         memset(&mbox_sts, 0, sizeof(mbox_sts));
 845         if (fw_ddb_entry)
 846                 memset(fw_ddb_entry, 0, sizeof(struct dev_db_entry));
 847
 848         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY;
 849         mbox_cmd[1] = (uint32_t) fw_ddb_index;
 850         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
 851         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
 852         mbox_cmd[4] = sizeof(struct dev_db_entry);
 853
 854         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 7, &mbox_cmd[0], &mbox_sts[0]) ==
 855             QLA_ERROR) {
 856                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed"
 857                               " with status 0x%04X\n", ha->host_no, __func__,
 858                               mbox_sts[0]));
 859                 goto exit_get_fwddb;
 860         }
 861         if (fw_ddb_index != mbox_sts[1]) {
 862                 DEBUG2(printk("scsi%ld: %s: ddb mismatch [%d] != [%d].\n",
 863                               ha->host_no, __func__, fw_ddb_index,
 864                               mbox_sts[1]));
 865                 goto exit_get_fwddb;
 866         }
 867         if (fw_ddb_entry) {
 868                 options = le16_to_cpu(fw_ddb_entry->options);
 869                 if (options & DDB_OPT_IPV6_DEVICE) {
 870                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
 871                                 "Next %d State %04x ConnErr %08x %pI6 "
 872                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
 873                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
 874                                 mbox_sts[4], mbox_sts[5],
 875                                 fw_ddb_entry->ip_addr,
 876                                 le16_to_cpu(fw_ddb_entry->port),
 877                                 fw_ddb_entry->iscsi_name);
 878                 } else {
 879                         ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
 880                                 "Next %d State %04x ConnErr %08x %pI4 "
 881                                 ":%04d \"%s\"\n", __func__, fw_ddb_index,
 882                                 mbox_sts[0], mbox_sts[2], mbox_sts[3],
 883                                 mbox_sts[4], mbox_sts[5],
 884                                 fw_ddb_entry->ip_addr,
 885                                 le16_to_cpu(fw_ddb_entry->port),
 886                                 fw_ddb_entry->iscsi_name);
 887                 }
 888         }
 889         if (num_valid_ddb_entries)
 890                 *num_valid_ddb_entries = mbox_sts[2];
 891         if (next_ddb_index)
 892                 *next_ddb_index = mbox_sts[3];
 893         if (fw_ddb_device_state)
 894                 *fw_ddb_device_state = mbox_sts[4];
 895
 896         /*
 897          * RA: This mailbox has been changed to pass connection error and
 898          * details.  Its true for ISP4010 as per Version E - Not sure when it
 899          * was changed.  Get the time2wait from the fw_dd_entry field :
 900          * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY
 901          * struct.
 902          */
 903         if (conn_err_detail)
 904                 *conn_err_detail = mbox_sts[5];
 905         if (tcp_source_port_num)
 906                 *tcp_source_port_num = (uint16_t) (mbox_sts[6] >> 16);
 907         if (connection_id)
 908                 *connection_id = (uint16_t) mbox_sts[6] & 0x00FF;
 909         status = QLA_SUCCESS;
 910
 911 exit_get_fwddb:
 912         return status;
 913 }
 914
 915 int qla4xxx_conn_open(struct scsi_qla_host *ha, uint16_t fw_ddb_index)
 916 {
 917         uint32_t mbox_cmd[MBOX_REG_COUNT];
 918         uint32_t mbox_sts[MBOX_REG_COUNT];
 919         int status;
 920
 921         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 922         memset(&mbox_sts, 0, sizeof(mbox_sts));
 923
 924         mbox_cmd[0] = MBOX_CMD_CONN_OPEN;
 925         mbox_cmd[1] = fw_ddb_index;
 926
 927         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
 928                                          &mbox_sts[0]);
 929         DEBUG2(ql4_printk(KERN_INFO, ha,
 930                           "%s: status = %d mbx0 = 0x%x mbx1 = 0x%x\n",
 931                           __func__, status, mbox_sts[0], mbox_sts[1]));
 932         return status;
 933 }
 934
 935 /**
 936  * qla4xxx_set_ddb_entry - sets a ddb entry.
 937  * @ha: Pointer to host adapter structure.
 938  * @fw_ddb_index: Firmware's device database index
 939  * @fw_ddb_entry_dma: dma address of ddb entry
 940  * @mbx_sts: mailbox 0 to be returned or NULL
 941  *
 942  * This routine initializes or updates the adapter's device database
 943  * entry for the specified device.
 944  **/
 945 int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index,
 946                           dma_addr_t fw_ddb_entry_dma, uint32_t *mbx_sts)
 947 {
 948         uint32_t mbox_cmd[MBOX_REG_COUNT];
 949         uint32_t mbox_sts[MBOX_REG_COUNT];
 950         int status;
 951
 952         /* Do not wait for completion. The firmware will send us an
 953          * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status.
 954          */
 955         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 956         memset(&mbox_sts, 0, sizeof(mbox_sts));
 957
 958         mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY;
 959         mbox_cmd[1] = (uint32_t) fw_ddb_index;
 960         mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
 961         mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
 962         mbox_cmd[4] = sizeof(struct dev_db_entry);
 963
 964         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
 965                                          &mbox_sts[0]);
 966         if (mbx_sts)
 967                 *mbx_sts = mbox_sts[0];
 968         DEBUG2(printk("scsi%ld: %s: status=%d mbx0=0x%x mbx4=0x%x\n",
 969             ha->host_no, __func__, status, mbox_sts[0], mbox_sts[4]);)
 970
 971         return status;
 972 }
 973
 974 int qla4xxx_session_logout_ddb(struct scsi_qla_host *ha,
 975                                struct ddb_entry *ddb_entry, int options)
 976 {
 977         int status;
 978         uint32_t mbox_cmd[MBOX_REG_COUNT];
 979         uint32_t mbox_sts[MBOX_REG_COUNT];
 980
 981         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 982         memset(&mbox_sts, 0, sizeof(mbox_sts));
 983
 984         mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
 985         mbox_cmd[1] = ddb_entry->fw_ddb_index;
 986         mbox_cmd[3] = options;
 987
 988         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
 989                                          &mbox_sts[0]);
 990         if (status != QLA_SUCCESS) {
 991                 DEBUG2(ql4_printk(KERN_INFO, ha,
 992                                   "%s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT "
 993                                   "failed sts %04X %04X", __func__,
 994                                   mbox_sts[0], mbox_sts[1]));
 995                 if ((mbox_sts[0] == MBOX_STS_COMMAND_ERROR) &&
 996                     (mbox_sts[1] == DDB_NOT_LOGGED_IN)) {
 997                         set_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
 998                 }
 999         }
1000
1001         return status;
1002 }
1003
1004 /**
1005  * qla4xxx_get_crash_record - retrieves crash record.
1006  * @ha: Pointer to host adapter structure.
1007  *
1008  * This routine retrieves a crash record from the QLA4010 after an 8002h aen.
1009  **/
1010 void qla4xxx_get_crash_record(struct scsi_qla_host * ha)
1011 {
1012         uint32_t mbox_cmd[MBOX_REG_COUNT];
1013         uint32_t mbox_sts[MBOX_REG_COUNT];
1014         struct crash_record *crash_record = NULL;
1015         dma_addr_t crash_record_dma = 0;
1016         uint32_t crash_record_size = 0;
1017
1018         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1019         memset(&mbox_sts, 0, sizeof(mbox_cmd));
1020
1021         /* Get size of crash record. */
1022         mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
1023
1024         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
1025             QLA_SUCCESS) {
1026                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n",
1027                               ha->host_no, __func__));
1028                 goto exit_get_crash_record;
1029         }
1030         crash_record_size = mbox_sts[4];
1031         if (crash_record_size == 0) {
1032                 DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n",
1033                               ha->host_no, __func__));
1034                 goto exit_get_crash_record;
1035         }
1036
1037         /* Alloc Memory for Crash Record. */
1038         crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size,
1039                                           &crash_record_dma, GFP_KERNEL);
1040         if (crash_record == NULL)
1041                 goto exit_get_crash_record;
1042
1043         /* Get Crash Record. */
1044         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1045         memset(&mbox_sts, 0, sizeof(mbox_cmd));
1046
1047         mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
1048         mbox_cmd[2] = LSDW(crash_record_dma);
1049         mbox_cmd[3] = MSDW(crash_record_dma);
1050         mbox_cmd[4] = crash_record_size;
1051
1052         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
1053             QLA_SUCCESS)
1054                 goto exit_get_crash_record;
1055
1056         /* Dump Crash Record. */
1057
1058 exit_get_crash_record:
1059         if (crash_record)
1060                 dma_free_coherent(&ha->pdev->dev, crash_record_size,
1061                                   crash_record, crash_record_dma);
1062 }
1063
1064 /**
1065  * qla4xxx_get_conn_event_log - retrieves connection event log
1066  * @ha: Pointer to host adapter structure.
1067  **/
1068 void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)
1069 {
1070         uint32_t mbox_cmd[MBOX_REG_COUNT];
1071         uint32_t mbox_sts[MBOX_REG_COUNT];
1072         struct conn_event_log_entry *event_log = NULL;
1073         dma_addr_t event_log_dma = 0;
1074         uint32_t event_log_size = 0;
1075         uint32_t num_valid_entries;
1076         uint32_t      oldest_entry = 0;
1077         uint32_t        max_event_log_entries;
1078         uint8_t         i;
1079
1080         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1081         memset(&mbox_sts, 0, sizeof(mbox_cmd));
1082
1083         /* Get size of crash record. */
1084         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
1085
1086         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
1087             QLA_SUCCESS)
1088                 goto exit_get_event_log;
1089
1090         event_log_size = mbox_sts[4];
1091         if (event_log_size == 0)
1092                 goto exit_get_event_log;
1093
1094         /* Alloc Memory for Crash Record. */
1095         event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size,
1096                                        &event_log_dma, GFP_KERNEL);
1097         if (event_log == NULL)
1098                 goto exit_get_event_log;
1099
1100         /* Get Crash Record. */
1101         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1102         memset(&mbox_sts, 0, sizeof(mbox_cmd));
1103
1104         mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
1105         mbox_cmd[2] = LSDW(event_log_dma);
1106         mbox_cmd[3] = MSDW(event_log_dma);
1107
1108         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
1109             QLA_SUCCESS) {
1110                 DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event "
1111                               "log!\n", ha->host_no, __func__));
1112                 goto exit_get_event_log;
1113         }
1114
1115         /* Dump Event Log. */
1116         num_valid_entries = mbox_sts[1];
1117
1118         max_event_log_entries = event_log_size /
1119                 sizeof(struct conn_event_log_entry);
1120
1121         if (num_valid_entries > max_event_log_entries)
1122                 oldest_entry = num_valid_entries % max_event_log_entries;
1123
1124         DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n",
1125                       ha->host_no, num_valid_entries));
1126
1127         if (ql4xextended_error_logging == 3) {
1128                 if (oldest_entry == 0) {
1129                         /* Circular Buffer has not wrapped around */
1130                         for (i=0; i < num_valid_entries; i++) {
1131                                 qla4xxx_dump_buffer((uint8_t *)event_log+
1132                                                     (i*sizeof(*event_log)),
1133                                                     sizeof(*event_log));
1134                         }
1135                 }
1136                 else {
1137                         /* Circular Buffer has wrapped around -
1138                          * display accordingly*/
1139                         for (i=oldest_entry; i < max_event_log_entries; i++) {
1140                                 qla4xxx_dump_buffer((uint8_t *)event_log+
1141                                                     (i*sizeof(*event_log)),
1142                                                     sizeof(*event_log));
1143                         }
1144                         for (i=0; i < oldest_entry; i++) {
1145                                 qla4xxx_dump_buffer((uint8_t *)event_log+
1146                                                     (i*sizeof(*event_log)),
1147                                                     sizeof(*event_log));
1148                         }
1149                 }
1150         }
1151
1152 exit_get_event_log:
1153         if (event_log)
1154                 dma_free_coherent(&ha->pdev->dev, event_log_size, event_log,
1155                                   event_log_dma);
1156 }
1157
1158 /**
1159  * qla4xxx_abort_task - issues Abort Task
1160  * @ha: Pointer to host adapter structure.
1161  * @srb: Pointer to srb entry
1162  *
1163  * This routine performs a LUN RESET on the specified target/lun.
1164  * The caller must ensure that the ddb_entry and lun_entry pointers
1165  * are valid before calling this routine.
1166  **/
1167 int qla4xxx_abort_task(struct scsi_qla_host *ha, struct srb *srb)
1168 {
1169         uint32_t mbox_cmd[MBOX_REG_COUNT];
1170         uint32_t mbox_sts[MBOX_REG_COUNT];
1171         struct scsi_cmnd *cmd = srb->cmd;
1172         int status = QLA_SUCCESS;
1173         unsigned long flags = 0;
1174         uint32_t index;
1175
1176         /*
1177          * Send abort task command to ISP, so that the ISP will return
1178          * request with ABORT status
1179          */
1180         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1181         memset(&mbox_sts, 0, sizeof(mbox_sts));
1182
1183         spin_lock_irqsave(&ha->hardware_lock, flags);
1184         index = (unsigned long)(unsigned char *)cmd->host_scribble;
1185         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1186
1187         /* Firmware already posted completion on response queue */
1188         if (index == MAX_SRBS)
1189                 return status;
1190
1191         mbox_cmd[0] = MBOX_CMD_ABORT_TASK;
1192         mbox_cmd[1] = srb->ddb->fw_ddb_index;
1193         mbox_cmd[2] = index;
1194         /* Immediate Command Enable */
1195         mbox_cmd[5] = 0x01;
1196
1197         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
1198             &mbox_sts[0]);
1199         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE) {
1200                 status = QLA_ERROR;
1201
1202                 DEBUG2(printk(KERN_WARNING "scsi%ld:%d:%llu: abort task FAILED: "
1203                     "mbx0=%04X, mb1=%04X, mb2=%04X, mb3=%04X, mb4=%04X\n",
1204                     ha->host_no, cmd->device->id, cmd->device->lun, mbox_sts[0],
1205                     mbox_sts[1], mbox_sts[2], mbox_sts[3], mbox_sts[4]));
1206         }
1207
1208         return status;
1209 }
1210
1211 /**
1212  * qla4xxx_reset_lun - issues LUN Reset
1213  * @ha: Pointer to host adapter structure.
1214  * @ddb_entry: Pointer to device database entry
1215  * @lun: lun number
1216  *
1217  * This routine performs a LUN RESET on the specified target/lun.
1218  * The caller must ensure that the ddb_entry and lun_entry pointers
1219  * are valid before calling this routine.
1220  **/
1221 int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
1222                       uint64_t lun)
1223 {
1224         uint32_t mbox_cmd[MBOX_REG_COUNT];
1225         uint32_t mbox_sts[MBOX_REG_COUNT];
1226         uint32_t scsi_lun[2];
1227         int status = QLA_SUCCESS;
1228
1229         DEBUG2(printk("scsi%ld:%d:%llu: lun reset issued\n", ha->host_no,
1230                       ddb_entry->fw_ddb_index, lun));
1231
1232         /*
1233          * Send lun reset command to ISP, so that the ISP will return all
1234          * outstanding requests with RESET status
1235          */
1236         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1237         memset(&mbox_sts, 0, sizeof(mbox_sts));
1238         int_to_scsilun(lun, (struct scsi_lun *) scsi_lun);
1239
1240         mbox_cmd[0] = MBOX_CMD_LUN_RESET;
1241         mbox_cmd[1] = ddb_entry->fw_ddb_index;
1242         /* FW expects LUN bytes 0-3 in Incoming Mailbox 2
1243          * (LUN byte 0 is LSByte, byte 3 is MSByte) */
1244         mbox_cmd[2] = cpu_to_le32(scsi_lun[0]);
1245         /* FW expects LUN bytes 4-7 in Incoming Mailbox 3
1246          * (LUN byte 4 is LSByte, byte 7 is MSByte) */
1247         mbox_cmd[3] = cpu_to_le32(scsi_lun[1]);
1248         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
1249
1250         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]);
1251         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1252             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1253                 status = QLA_ERROR;
1254
1255         return status;
1256 }
1257
1258 /**
1259  * qla4xxx_reset_target - issues target Reset
1260  * @ha: Pointer to host adapter structure.
1261  * @ddb_entry: Pointer to device database entry
1262  *
1263  * This routine performs a TARGET RESET on the specified target.
1264  * The caller must ensure that the ddb_entry pointers
1265  * are valid before calling this routine.
1266  **/
1267 int qla4xxx_reset_target(struct scsi_qla_host *ha,
1268                          struct ddb_entry *ddb_entry)
1269 {
1270         uint32_t mbox_cmd[MBOX_REG_COUNT];
1271         uint32_t mbox_sts[MBOX_REG_COUNT];
1272         int status = QLA_SUCCESS;
1273
1274         DEBUG2(printk("scsi%ld:%d: target reset issued\n", ha->host_no,
1275                       ddb_entry->fw_ddb_index));
1276
1277         /*
1278          * Send target reset command to ISP, so that the ISP will return all
1279          * outstanding requests with RESET status
1280          */
1281         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1282         memset(&mbox_sts, 0, sizeof(mbox_sts));
1283
1284         mbox_cmd[0] = MBOX_CMD_TARGET_WARM_RESET;
1285         mbox_cmd[1] = ddb_entry->fw_ddb_index;
1286         mbox_cmd[5] = 0x01;     /* Immediate Command Enable */
1287
1288         qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1289                                 &mbox_sts[0]);
1290         if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1291             mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1292                 status = QLA_ERROR;
1293
1294         return status;
1295 }
1296
1297 int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr,
1298                       uint32_t offset, uint32_t len)
1299 {
1300         uint32_t mbox_cmd[MBOX_REG_COUNT];
1301         uint32_t mbox_sts[MBOX_REG_COUNT];
1302
1303         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1304         memset(&mbox_sts, 0, sizeof(mbox_sts));
1305
1306         mbox_cmd[0] = MBOX_CMD_READ_FLASH;
1307         mbox_cmd[1] = LSDW(dma_addr);
1308         mbox_cmd[2] = MSDW(dma_addr);
1309         mbox_cmd[3] = offset;
1310         mbox_cmd[4] = len;
1311
1312         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], &mbox_sts[0]) !=
1313             QLA_SUCCESS) {
1314                 DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ "
1315                     "status %04X %04X, offset %08x, len %08x\n", ha->host_no,
1316                     __func__, mbox_sts[0], mbox_sts[1], offset, len));
1317                 return QLA_ERROR;
1318         }
1319         return QLA_SUCCESS;
1320 }
1321
1322 /**
1323  * qla4xxx_about_firmware - gets FW, iscsi draft and boot loader version
1324  * @ha: Pointer to host adapter structure.
1325  *
1326  * Retrieves the FW version, iSCSI draft version & bootloader version of HBA.
1327  * Mailboxes 2 & 3 may hold an address for data. Make sure that we write 0 to
1328  * those mailboxes, if unused.
1329  **/
1330 int qla4xxx_about_firmware(struct scsi_qla_host *ha)
1331 {
1332         struct about_fw_info *about_fw = NULL;
1333         dma_addr_t about_fw_dma;
1334         uint32_t mbox_cmd[MBOX_REG_COUNT];
1335         uint32_t mbox_sts[MBOX_REG_COUNT];
1336         int status = QLA_ERROR;
1337
1338         about_fw = dma_alloc_coherent(&ha->pdev->dev,
1339                                       sizeof(struct about_fw_info),
1340                                       &about_fw_dma, GFP_KERNEL);
1341         if (!about_fw) {
1342                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to alloc memory "
1343                                   "for about_fw\n", __func__));
1344                 return status;
1345         }
1346
1347         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1348         memset(&mbox_sts, 0, sizeof(mbox_sts));
1349
1350         mbox_cmd[0] = MBOX_CMD_ABOUT_FW;
1351         mbox_cmd[2] = LSDW(about_fw_dma);
1352         mbox_cmd[3] = MSDW(about_fw_dma);
1353         mbox_cmd[4] = sizeof(struct about_fw_info);
1354
1355         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
1356                                          &mbox_cmd[0], &mbox_sts[0]);
1357         if (status != QLA_SUCCESS) {
1358                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_ABOUT_FW "
1359                                   "failed w/ status %04X\n", __func__,
1360                                   mbox_sts[0]));
1361                 goto exit_about_fw;
1362         }
1363
1364         /* Save version information. */
1365         ha->fw_info.fw_major = le16_to_cpu(about_fw->fw_major);
1366         ha->fw_info.fw_minor = le16_to_cpu(about_fw->fw_minor);
1367         ha->fw_info.fw_patch = le16_to_cpu(about_fw->fw_patch);
1368         ha->fw_info.fw_build = le16_to_cpu(about_fw->fw_build);
1369         memcpy(ha->fw_info.fw_build_date, about_fw->fw_build_date,
1370                sizeof(about_fw->fw_build_date));
1371         memcpy(ha->fw_info.fw_build_time, about_fw->fw_build_time,
1372                sizeof(about_fw->fw_build_time));
1373         strcpy((char *)ha->fw_info.fw_build_user,
1374                skip_spaces((char *)about_fw->fw_build_user));
1375         ha->fw_info.fw_load_source = le16_to_cpu(about_fw->fw_load_source);
1376         ha->fw_info.iscsi_major = le16_to_cpu(about_fw->iscsi_major);
1377         ha->fw_info.iscsi_minor = le16_to_cpu(about_fw->iscsi_minor);
1378         ha->fw_info.bootload_major = le16_to_cpu(about_fw->bootload_major);
1379         ha->fw_info.bootload_minor = le16_to_cpu(about_fw->bootload_minor);
1380         ha->fw_info.bootload_patch = le16_to_cpu(about_fw->bootload_patch);
1381         ha->fw_info.bootload_build = le16_to_cpu(about_fw->bootload_build);
1382         strcpy((char *)ha->fw_info.extended_timestamp,
1383                skip_spaces((char *)about_fw->extended_timestamp));
1384
1385         ha->fw_uptime_secs = le32_to_cpu(mbox_sts[5]);
1386         ha->fw_uptime_msecs = le32_to_cpu(mbox_sts[6]);
1387         status = QLA_SUCCESS;
1388
1389 exit_about_fw:
1390         dma_free_coherent(&ha->pdev->dev, sizeof(struct about_fw_info),
1391                           about_fw, about_fw_dma);
1392         return status;
1393 }
1394
1395 int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, uint32_t options,
1396                             dma_addr_t dma_addr)
1397 {
1398         uint32_t mbox_cmd[MBOX_REG_COUNT];
1399         uint32_t mbox_sts[MBOX_REG_COUNT];
1400
1401         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1402         memset(&mbox_sts, 0, sizeof(mbox_sts));
1403
1404         mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS;
1405         mbox_cmd[1] = options;
1406         mbox_cmd[2] = LSDW(dma_addr);
1407         mbox_cmd[3] = MSDW(dma_addr);
1408
1409         if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) !=
1410             QLA_SUCCESS) {
1411                 DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
1412                      ha->host_no, __func__, mbox_sts[0]));
1413                 return QLA_ERROR;
1414         }
1415         return QLA_SUCCESS;
1416 }
1417
1418 int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index,
1419                           uint32_t *mbx_sts)
1420 {
1421         int status;
1422         uint32_t mbox_cmd[MBOX_REG_COUNT];
1423         uint32_t mbox_sts[MBOX_REG_COUNT];
1424
1425         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1426         memset(&mbox_sts, 0, sizeof(mbox_sts));
1427
1428         mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY;
1429         mbox_cmd[1] = ddb_index;
1430
1431         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1432                                          &mbox_sts[0]);
1433         if (status != QLA_SUCCESS) {
1434                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1435                                    __func__, mbox_sts[0]));
1436         }
1437
1438         *mbx_sts = mbox_sts[0];
1439         return status;
1440 }
1441
1442 int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index)
1443 {
1444         int status;
1445         uint32_t mbox_cmd[MBOX_REG_COUNT];
1446         uint32_t mbox_sts[MBOX_REG_COUNT];
1447
1448         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1449         memset(&mbox_sts, 0, sizeof(mbox_sts));
1450
1451         mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY;
1452         mbox_cmd[1] = ddb_index;
1453
1454         status = qla4xxx_mailbox_command(ha, 2, 1, &mbox_cmd[0],
1455                                          &mbox_sts[0]);
1456         if (status != QLA_SUCCESS) {
1457                 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1458                                    __func__, mbox_sts[0]));
1459         }
1460
1461         return status;
1462 }
1463
1464 int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr,
1465                       uint32_t offset, uint32_t length, uint32_t options)
1466 {
1467         uint32_t mbox_cmd[MBOX_REG_COUNT];
1468         uint32_t mbox_sts[MBOX_REG_COUNT];
1469         int status = QLA_SUCCESS;
1470
1471         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1472         memset(&mbox_sts, 0, sizeof(mbox_sts));
1473
1474         mbox_cmd[0] = MBOX_CMD_WRITE_FLASH;
1475         mbox_cmd[1] = LSDW(dma_addr);
1476         mbox_cmd[2] = MSDW(dma_addr);
1477         mbox_cmd[3] = offset;
1478         mbox_cmd[4] = length;
1479         mbox_cmd[5] = options;
1480
1481         status = qla4xxx_mailbox_command(ha, 6, 2, &mbox_cmd[0], &mbox_sts[0]);
1482         if (status != QLA_SUCCESS) {
1483                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_WRITE_FLASH "
1484                                   "failed w/ status %04X, mbx1 %04X\n",
1485                                   __func__, mbox_sts[0], mbox_sts[1]));
1486         }
1487         return status;
1488 }
1489
1490 int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha,
1491                             struct dev_db_entry *fw_ddb_entry,
1492                             dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
1493 {
1494         uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
1495         uint32_t dev_db_end_offset;
1496         int status = QLA_ERROR;
1497
1498         memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1499
1500         dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
1501         dev_db_end_offset = FLASH_OFFSET_DB_END;
1502
1503         if (dev_db_start_offset > dev_db_end_offset) {
1504                 DEBUG2(ql4_printk(KERN_ERR, ha,
1505                                   "%s:Invalid DDB index %d", __func__,
1506                                   ddb_index));
1507                 goto exit_bootdb_failed;
1508         }
1509
1510         if (qla4xxx_get_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
1511                               sizeof(*fw_ddb_entry)) != QLA_SUCCESS) {
1512                 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
1513                            "failed\n", ha->host_no, __func__);
1514                 goto exit_bootdb_failed;
1515         }
1516
1517         if (fw_ddb_entry->cookie == DDB_VALID_COOKIE)
1518                 status = QLA_SUCCESS;
1519
1520 exit_bootdb_failed:
1521         return status;
1522 }
1523
1524 int qla4xxx_flashdb_by_index(struct scsi_qla_host *ha,
1525                              struct dev_db_entry *fw_ddb_entry,
1526                              dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
1527 {
1528         uint32_t dev_db_start_offset;
1529         uint32_t dev_db_end_offset;
1530         int status = QLA_ERROR;
1531
1532         memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1533
1534         if (is_qla40XX(ha)) {
1535                 dev_db_start_offset = FLASH_OFFSET_DB_INFO;
1536                 dev_db_end_offset = FLASH_OFFSET_DB_END;
1537         } else {
1538                 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
1539                                       (ha->hw.flt_region_ddb << 2);
1540                 /* flt_ddb_size is DDB table size for both ports
1541                  * so divide it by 2 to calculate the offset for second port
1542                  */
1543                 if (ha->port_num == 1)
1544                         dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
1545
1546                 dev_db_end_offset = dev_db_start_offset +
1547                                     (ha->hw.flt_ddb_size / 2);
1548         }
1549
1550         dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
1551
1552         if (dev_db_start_offset > dev_db_end_offset) {
1553                 DEBUG2(ql4_printk(KERN_ERR, ha,
1554                                   "%s:Invalid DDB index %d", __func__,
1555                                   ddb_index));
1556                 goto exit_fdb_failed;
1557         }
1558
1559         if (qla4xxx_get_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
1560                               sizeof(*fw_ddb_entry)) != QLA_SUCCESS) {
1561                 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash failed\n",
1562                            ha->host_no, __func__);
1563                 goto exit_fdb_failed;
1564         }
1565
1566         if (fw_ddb_entry->cookie == DDB_VALID_COOKIE)
1567                 status = QLA_SUCCESS;
1568
1569 exit_fdb_failed:
1570         return status;
1571 }
1572
1573 int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username, char *password,
1574                      uint16_t idx)
1575 {
1576         int ret = 0;
1577         int rval = QLA_ERROR;
1578         uint32_t offset = 0, chap_size;
1579         struct ql4_chap_table *chap_table;
1580         dma_addr_t chap_dma;
1581
1582         chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1583         if (chap_table == NULL)
1584                 return -ENOMEM;
1585
1586         chap_size = sizeof(struct ql4_chap_table);
1587
1588         if (is_qla40XX(ha))
1589                 offset = FLASH_CHAP_OFFSET | (idx * chap_size);
1590         else {
1591                 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
1592                 /* flt_chap_size is CHAP table size for both ports
1593                  * so divide it by 2 to calculate the offset for second port
1594                  */
1595                 if (ha->port_num == 1)
1596                         offset += (ha->hw.flt_chap_size / 2);
1597                 offset += (idx * chap_size);
1598         }
1599
1600         rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
1601         if (rval != QLA_SUCCESS) {
1602                 ret = -EINVAL;
1603                 goto exit_get_chap;
1604         }
1605
1606         DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
1607                 __le16_to_cpu(chap_table->cookie)));
1608
1609         if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
1610                 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
1611                 goto exit_get_chap;
1612         }
1613
1614         strscpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
1615         strscpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
1616         chap_table->cookie = cpu_to_le16(CHAP_VALID_COOKIE);
1617
1618 exit_get_chap:
1619         dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1620         return ret;
1621 }
1622
1623 /**
1624  * qla4xxx_set_chap - Make a chap entry at the given index
1625  * @ha: pointer to adapter structure
1626  * @username: CHAP username to set
1627  * @password: CHAP password to set
1628  * @idx: CHAP index at which to make the entry
1629  * @bidi: type of chap entry (chap_in or chap_out)
1630  *
1631  * Create chap entry at the given index with the information provided.
1632  *
1633  * Note: Caller should acquire the chap lock before getting here.
1634  **/
1635 int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, char *password,
1636                      uint16_t idx, int bidi)
1637 {
1638         int ret = 0;
1639         int rval = QLA_ERROR;
1640         uint32_t offset = 0;
1641         struct ql4_chap_table *chap_table;
1642         uint32_t chap_size = 0;
1643         dma_addr_t chap_dma;
1644         ssize_t secret_len;
1645
1646         chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1647         if (chap_table == NULL) {
1648                 ret =  -ENOMEM;
1649                 goto exit_set_chap;
1650         }
1651
1652         if (bidi)
1653                 chap_table->flags |= BIT_6; /* peer */
1654         else
1655                 chap_table->flags |= BIT_7; /* local */
1656
1657         secret_len = strscpy(chap_table->secret, password,
1658                              sizeof(chap_table->secret));
1659         if (secret_len < MIN_CHAP_SECRET_LEN)
1660                 goto cleanup_chap_table;
1661         chap_table->secret_len = (uint8_t)secret_len;
1662         strscpy(chap_table->name, username, sizeof(chap_table->name));
1663         chap_table->cookie = cpu_to_le16(CHAP_VALID_COOKIE);
1664
1665         if (is_qla40XX(ha)) {
1666                 chap_size = MAX_CHAP_ENTRIES_40XX * sizeof(*chap_table);
1667                 offset = FLASH_CHAP_OFFSET;
1668         } else { /* Single region contains CHAP info for both ports which is
1669                   * divided into half for each port.
1670                   */
1671                 chap_size = ha->hw.flt_chap_size / 2;
1672                 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
1673                 if (ha->port_num == 1)
1674                         offset += chap_size;
1675         }
1676
1677         offset += (idx * sizeof(struct ql4_chap_table));
1678         rval = qla4xxx_set_flash(ha, chap_dma, offset,
1679                                 sizeof(struct ql4_chap_table),
1680                                 FLASH_OPT_RMW_COMMIT);
1681
1682         if (rval == QLA_SUCCESS && ha->chap_list) {
1683                 /* Update ha chap_list cache */
1684                 memcpy((struct ql4_chap_table *)ha->chap_list + idx,
1685                        chap_table, sizeof(struct ql4_chap_table));
1686         }
1687
1688 cleanup_chap_table:
1689         dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1690         if (rval != QLA_SUCCESS)
1691                 ret =  -EINVAL;
1692
1693 exit_set_chap:
1694         return ret;
1695 }
1696
1697
1698 int qla4xxx_get_uni_chap_at_index(struct scsi_qla_host *ha, char *username,
1699                                   char *password, uint16_t chap_index)
1700 {
1701         int rval = QLA_ERROR;
1702         struct ql4_chap_table *chap_table = NULL;
1703         int max_chap_entries;
1704
1705         if (!ha->chap_list) {
1706                 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
1707                 rval = QLA_ERROR;
1708                 goto exit_uni_chap;
1709         }
1710
1711         if (!username || !password) {
1712                 ql4_printk(KERN_ERR, ha, "No memory for username & secret\n");
1713                 rval = QLA_ERROR;
1714                 goto exit_uni_chap;
1715         }
1716
1717         if (is_qla80XX(ha))
1718                 max_chap_entries = (ha->hw.flt_chap_size / 2) /
1719                                    sizeof(struct ql4_chap_table);
1720         else
1721                 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1722
1723         if (chap_index > max_chap_entries) {
1724                 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
1725                 rval = QLA_ERROR;
1726                 goto exit_uni_chap;
1727         }
1728
1729         mutex_lock(&ha->chap_sem);
1730         chap_table = (struct ql4_chap_table *)ha->chap_list + chap_index;
1731         if (chap_table->cookie != cpu_to_le16(CHAP_VALID_COOKIE)) {
1732                 rval = QLA_ERROR;
1733                 goto exit_unlock_uni_chap;
1734         }
1735
1736         if (!(chap_table->flags & BIT_7)) {
1737                 ql4_printk(KERN_ERR, ha, "Unidirectional entry not set\n");
1738                 rval = QLA_ERROR;
1739                 goto exit_unlock_uni_chap;
1740         }
1741
1742         strscpy(password, chap_table->secret, MAX_CHAP_SECRET_LEN);
1743         strscpy(username, chap_table->name, MAX_CHAP_NAME_LEN);
1744
1745         rval = QLA_SUCCESS;
1746
1747 exit_unlock_uni_chap:
1748         mutex_unlock(&ha->chap_sem);
1749 exit_uni_chap:
1750         return rval;
1751 }
1752
1753 /**
1754  * qla4xxx_get_chap_index - Get chap index given username and secret
1755  * @ha: pointer to adapter structure
1756  * @username: CHAP username to be searched
1757  * @password: CHAP password to be searched
1758  * @bidi: Is this a BIDI CHAP
1759  * @chap_index: CHAP index to be returned
1760  *
1761  * Match the username and password in the chap_list, return the index if a
1762  * match is found. If a match is not found then add the entry in FLASH and
1763  * return the index at which entry is written in the FLASH.
1764  **/
1765 int qla4xxx_get_chap_index(struct scsi_qla_host *ha, char *username,
1766                            char *password, int bidi, uint16_t *chap_index)
1767 {
1768         int i, rval;
1769         int free_index = -1;
1770         int found_index = 0;
1771         int max_chap_entries = 0;
1772         struct ql4_chap_table *chap_table;
1773
1774         if (is_qla80XX(ha))
1775                 max_chap_entries = (ha->hw.flt_chap_size / 2) /
1776                                                 sizeof(struct ql4_chap_table);
1777         else
1778                 max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1779
1780         if (!ha->chap_list) {
1781                 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
1782                 return QLA_ERROR;
1783         }
1784
1785         if (!username || !password) {
1786                 ql4_printk(KERN_ERR, ha, "Do not have username and psw\n");
1787                 return QLA_ERROR;
1788         }
1789
1790         mutex_lock(&ha->chap_sem);
1791         for (i = 0; i < max_chap_entries; i++) {
1792                 chap_table = (struct ql4_chap_table *)ha->chap_list + i;
1793                 if (chap_table->cookie !=
1794                     cpu_to_le16(CHAP_VALID_COOKIE)) {
1795                         if (i > MAX_RESRV_CHAP_IDX && free_index == -1)
1796                                 free_index = i;
1797                         continue;
1798                 }
1799                 if (bidi) {
1800                         if (chap_table->flags & BIT_7)
1801                                 continue;
1802                 } else {
1803                         if (chap_table->flags & BIT_6)
1804                                 continue;
1805                 }
1806                 if (!strncmp(chap_table->secret, password,
1807                              MAX_CHAP_SECRET_LEN) &&
1808                     !strncmp(chap_table->name, username,
1809                              MAX_CHAP_NAME_LEN)) {
1810                         *chap_index = i;
1811                         found_index = 1;
1812                         break;
1813                 }
1814         }
1815
1816         /* If chap entry is not present and a free index is available then
1817          * write the entry in flash
1818          */
1819         if (!found_index && free_index != -1) {
1820                 rval = qla4xxx_set_chap(ha, username, password,
1821                                         free_index, bidi);
1822                 if (!rval) {
1823                         *chap_index = free_index;
1824                         found_index = 1;
1825                 }
1826         }
1827
1828         mutex_unlock(&ha->chap_sem);
1829
1830         if (found_index)
1831                 return QLA_SUCCESS;
1832         return QLA_ERROR;
1833 }
1834
1835 int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha,
1836                                    uint16_t fw_ddb_index,
1837                                    uint16_t connection_id,
1838                                    uint16_t option)
1839 {
1840         uint32_t mbox_cmd[MBOX_REG_COUNT];
1841         uint32_t mbox_sts[MBOX_REG_COUNT];
1842         int status = QLA_SUCCESS;
1843
1844         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1845         memset(&mbox_sts, 0, sizeof(mbox_sts));
1846
1847         mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
1848         mbox_cmd[1] = fw_ddb_index;
1849         mbox_cmd[2] = connection_id;
1850         mbox_cmd[3] = option;
1851
1852         status = qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]);
1853         if (status != QLA_SUCCESS) {
1854                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_CONN_CLOSE "
1855                                   "option %04x failed w/ status %04X %04X\n",
1856                                   __func__, option, mbox_sts[0], mbox_sts[1]));
1857         }
1858         return status;
1859 }
1860
1861 /**
1862  * qla4_84xx_extend_idc_tmo - Extend IDC Timeout.
1863  * @ha: Pointer to host adapter structure.
1864  * @ext_tmo: idc timeout value
1865  *
1866  * Requests firmware to extend the idc timeout value.
1867  **/
1868 static int qla4_84xx_extend_idc_tmo(struct scsi_qla_host *ha, uint32_t ext_tmo)
1869 {
1870         uint32_t mbox_cmd[MBOX_REG_COUNT];
1871         uint32_t mbox_sts[MBOX_REG_COUNT];
1872         int status;
1873
1874         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1875         memset(&mbox_sts, 0, sizeof(mbox_sts));
1876         ext_tmo &= 0xf;
1877
1878         mbox_cmd[0] = MBOX_CMD_IDC_TIME_EXTEND;
1879         mbox_cmd[1] = ((ha->idc_info.request_desc & 0xfffff0ff) |
1880                        (ext_tmo << 8));         /* new timeout */
1881         mbox_cmd[2] = ha->idc_info.info1;
1882         mbox_cmd[3] = ha->idc_info.info2;
1883         mbox_cmd[4] = ha->idc_info.info3;
1884
1885         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
1886                                          mbox_cmd, mbox_sts);
1887         if (status != QLA_SUCCESS) {
1888                 DEBUG2(ql4_printk(KERN_INFO, ha,
1889                                   "scsi%ld: %s: failed status %04X\n",
1890                                   ha->host_no, __func__, mbox_sts[0]));
1891                 return QLA_ERROR;
1892         } else {
1893                 ql4_printk(KERN_INFO, ha, "%s: IDC timeout extended by %d secs\n",
1894                            __func__, ext_tmo);
1895         }
1896
1897         return QLA_SUCCESS;
1898 }
1899
1900 int qla4xxx_disable_acb(struct scsi_qla_host *ha)
1901 {
1902         uint32_t mbox_cmd[MBOX_REG_COUNT];
1903         uint32_t mbox_sts[MBOX_REG_COUNT];
1904         int status = QLA_SUCCESS;
1905
1906         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1907         memset(&mbox_sts, 0, sizeof(mbox_sts));
1908
1909         mbox_cmd[0] = MBOX_CMD_DISABLE_ACB;
1910
1911         status = qla4xxx_mailbox_command(ha, 8, 5, &mbox_cmd[0], &mbox_sts[0]);
1912         if (status != QLA_SUCCESS) {
1913                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_DISABLE_ACB "
1914                                   "failed w/ status %04X %04X %04X", __func__,
1915                                   mbox_sts[0], mbox_sts[1], mbox_sts[2]));
1916         } else {
1917                 if (is_qla8042(ha) &&
1918                     test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) &&
1919                     (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE)) {
1920                         /*
1921                          * Disable ACB mailbox command takes time to complete
1922                          * based on the total number of targets connected.
1923                          * For 512 targets, it took approximately 5 secs to
1924                          * complete. Setting the timeout value to 8, with the 3
1925                          * secs buffer.
1926                          */
1927                         qla4_84xx_extend_idc_tmo(ha, IDC_EXTEND_TOV);
1928                         if (!wait_for_completion_timeout(&ha->disable_acb_comp,
1929                                                          IDC_EXTEND_TOV * HZ)) {
1930                                 ql4_printk(KERN_WARNING, ha, "%s: Disable ACB Completion not received\n",
1931                                            __func__);
1932                         }
1933                 }
1934         }
1935         return status;
1936 }
1937
1938 int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t acb_dma,
1939                     uint32_t acb_type, uint32_t len)
1940 {
1941         uint32_t mbox_cmd[MBOX_REG_COUNT];
1942         uint32_t mbox_sts[MBOX_REG_COUNT];
1943         int status = QLA_SUCCESS;
1944
1945         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1946         memset(&mbox_sts, 0, sizeof(mbox_sts));
1947
1948         mbox_cmd[0] = MBOX_CMD_GET_ACB;
1949         mbox_cmd[1] = acb_type;
1950         mbox_cmd[2] = LSDW(acb_dma);
1951         mbox_cmd[3] = MSDW(acb_dma);
1952         mbox_cmd[4] = len;
1953
1954         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1955         if (status != QLA_SUCCESS) {
1956                 DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_GET_ACB "
1957                                   "failed w/ status %04X\n", __func__,
1958                                   mbox_sts[0]));
1959         }
1960         return status;
1961 }
1962
1963 int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
1964                     uint32_t *mbox_sts, dma_addr_t acb_dma)
1965 {
1966         int status = QLA_SUCCESS;
1967
1968         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1969         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1970         mbox_cmd[0] = MBOX_CMD_SET_ACB;
1971         mbox_cmd[1] = 0; /* Primary ACB */
1972         mbox_cmd[2] = LSDW(acb_dma);
1973         mbox_cmd[3] = MSDW(acb_dma);
1974         mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
1975
1976         status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1977         if (status != QLA_SUCCESS) {
1978                 DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: MBOX_CMD_SET_ACB "
1979                                   "failed w/ status %04X\n", __func__,
1980                                   mbox_sts[0]));
1981         }
1982         return status;
1983 }
1984
1985 int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha,
1986                                struct ddb_entry *ddb_entry,
1987                                struct iscsi_cls_conn *cls_conn,
1988                                uint32_t *mbx_sts)
1989 {
1990         struct dev_db_entry *fw_ddb_entry;
1991         struct iscsi_conn *conn;
1992         struct iscsi_session *sess;
1993         struct qla_conn *qla_conn;
1994         struct sockaddr *dst_addr;
1995         dma_addr_t fw_ddb_entry_dma;
1996         int status = QLA_SUCCESS;
1997         int rval = 0;
1998         struct sockaddr_in *addr;
1999         struct sockaddr_in6 *addr6;
2000         char *ip;
2001         uint16_t iscsi_opts = 0;
2002         uint32_t options = 0;
2003         uint16_t idx, *ptid;
2004
2005         fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2006                                           &fw_ddb_entry_dma, GFP_KERNEL);
2007         if (!fw_ddb_entry) {
2008                 DEBUG2(ql4_printk(KERN_ERR, ha,
2009                                   "%s: Unable to allocate dma buffer.\n",
2010                                   __func__));
2011                 rval = -ENOMEM;
2012                 goto exit_set_param_no_free;
2013         }
2014
2015         conn = cls_conn->dd_data;
2016         qla_conn = conn->dd_data;
2017         sess = conn->session;
2018         dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2019
2020         if (dst_addr->sa_family == AF_INET6)
2021                 options |= IPV6_DEFAULT_DDB_ENTRY;
2022
2023         status = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
2024         if (status == QLA_ERROR) {
2025                 rval = -EINVAL;
2026                 goto exit_set_param;
2027         }
2028
2029         ptid = (uint16_t *)&fw_ddb_entry->isid[1];
2030         *ptid = cpu_to_le16((uint16_t)ddb_entry->sess->target_id);
2031
2032         DEBUG2(ql4_printk(KERN_INFO, ha, "ISID [%pmR]\n", fw_ddb_entry->isid));
2033
2034         iscsi_opts = le16_to_cpu(fw_ddb_entry->iscsi_options);
2035         memset(fw_ddb_entry->iscsi_alias, 0, sizeof(fw_ddb_entry->iscsi_alias));
2036
2037         memset(fw_ddb_entry->iscsi_name, 0, sizeof(fw_ddb_entry->iscsi_name));
2038
2039         if (sess->targetname != NULL) {
2040                 memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
2041                        min(strlen(sess->targetname),
2042                        sizeof(fw_ddb_entry->iscsi_name)));
2043         }
2044
2045         memset(fw_ddb_entry->ip_addr, 0, sizeof(fw_ddb_entry->ip_addr));
2046         memset(fw_ddb_entry->tgt_addr, 0, sizeof(fw_ddb_entry->tgt_addr));
2047
2048         fw_ddb_entry->options =  DDB_OPT_TARGET | DDB_OPT_AUTO_SENDTGTS_DISABLE;
2049
2050         if (dst_addr->sa_family == AF_INET) {
2051                 addr = (struct sockaddr_in *)dst_addr;
2052                 ip = (char *)&addr->sin_addr;
2053                 memcpy(fw_ddb_entry->ip_addr, ip, IP_ADDR_LEN);
2054                 fw_ddb_entry->port = cpu_to_le16(ntohs(addr->sin_port));
2055                 DEBUG2(ql4_printk(KERN_INFO, ha,
2056                                   "%s: Destination Address [%pI4]: index [%d]\n",
2057                                    __func__, fw_ddb_entry->ip_addr,
2058                                   ddb_entry->fw_ddb_index));
2059         } else if (dst_addr->sa_family == AF_INET6) {
2060                 addr6 = (struct sockaddr_in6 *)dst_addr;
2061                 ip = (char *)&addr6->sin6_addr;
2062                 memcpy(fw_ddb_entry->ip_addr, ip, IPv6_ADDR_LEN);
2063                 fw_ddb_entry->port = cpu_to_le16(ntohs(addr6->sin6_port));
2064                 fw_ddb_entry->options |= DDB_OPT_IPV6_DEVICE;
2065                 DEBUG2(ql4_printk(KERN_INFO, ha,
2066                                   "%s: Destination Address [%pI6]: index [%d]\n",
2067                                    __func__, fw_ddb_entry->ip_addr,
2068                                   ddb_entry->fw_ddb_index));
2069         } else {
2070                 ql4_printk(KERN_ERR, ha,
2071                            "%s: Failed to get IP Address\n",
2072                            __func__);
2073                 rval = -EINVAL;
2074                 goto exit_set_param;
2075         }
2076
2077         /* CHAP */
2078         if (sess->username != NULL && sess->password != NULL) {
2079                 if (strlen(sess->username) && strlen(sess->password)) {
2080                         iscsi_opts |= BIT_7;
2081
2082                         rval = qla4xxx_get_chap_index(ha, sess->username,
2083                                                 sess->password,
2084                                                 LOCAL_CHAP, &idx);
2085                         if (rval)
2086                                 goto exit_set_param;
2087
2088                         fw_ddb_entry->chap_tbl_idx = cpu_to_le16(idx);
2089                 }
2090         }
2091
2092         if (sess->username_in != NULL && sess->password_in != NULL) {
2093                 /* Check if BIDI CHAP */
2094                 if (strlen(sess->username_in) && strlen(sess->password_in)) {
2095                         iscsi_opts |= BIT_4;
2096
2097                         rval = qla4xxx_get_chap_index(ha, sess->username_in,
2098                                                       sess->password_in,
2099                                                       BIDI_CHAP, &idx);
2100                         if (rval)
2101                                 goto exit_set_param;
2102                 }
2103         }
2104
2105         if (sess->initial_r2t_en)
2106                 iscsi_opts |= BIT_10;
2107
2108         if (sess->imm_data_en)
2109                 iscsi_opts |= BIT_11;
2110
2111         fw_ddb_entry->iscsi_options = cpu_to_le16(iscsi_opts);
2112
2113         if (conn->max_recv_dlength)
2114                 fw_ddb_entry->iscsi_max_rcv_data_seg_len =
2115                   cpu_to_le16((conn->max_recv_dlength / BYTE_UNITS));
2116
2117         if (sess->max_r2t)
2118                 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
2119
2120         if (sess->first_burst)
2121                 fw_ddb_entry->iscsi_first_burst_len =
2122                        cpu_to_le16((sess->first_burst / BYTE_UNITS));
2123
2124         if (sess->max_burst)
2125                 fw_ddb_entry->iscsi_max_burst_len =
2126                         cpu_to_le16((sess->max_burst / BYTE_UNITS));
2127
2128         if (sess->time2wait)
2129                 fw_ddb_entry->iscsi_def_time2wait =
2130                         cpu_to_le16(sess->time2wait);
2131
2132         if (sess->time2retain)
2133                 fw_ddb_entry->iscsi_def_time2retain =
2134                         cpu_to_le16(sess->time2retain);
2135
2136         status = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
2137                                        fw_ddb_entry_dma, mbx_sts);
2138
2139         if (status != QLA_SUCCESS)
2140                 rval = -EINVAL;
2141 exit_set_param:
2142         dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2143                           fw_ddb_entry, fw_ddb_entry_dma);
2144 exit_set_param_no_free:
2145         return rval;
2146 }
2147
2148 int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
2149                           uint16_t stats_size, dma_addr_t stats_dma)
2150 {
2151         int status = QLA_SUCCESS;
2152         uint32_t mbox_cmd[MBOX_REG_COUNT];
2153         uint32_t mbox_sts[MBOX_REG_COUNT];
2154
2155         memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
2156         memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
2157         mbox_cmd[0] = MBOX_CMD_GET_MANAGEMENT_DATA;
2158         mbox_cmd[1] = fw_ddb_index;
2159         mbox_cmd[2] = LSDW(stats_dma);
2160         mbox_cmd[3] = MSDW(stats_dma);
2161         mbox_cmd[4] = stats_size;
2162
2163         status = qla4xxx_mailbox_command(ha, 5, 1, &mbox_cmd[0], &mbox_sts[0]);
2164         if (status != QLA_SUCCESS) {
2165                 DEBUG2(ql4_printk(KERN_WARNING, ha,
2166                                   "%s: MBOX_CMD_GET_MANAGEMENT_DATA "
2167                                   "failed w/ status %04X\n", __func__,
2168                                   mbox_sts[0]));
2169         }
2170         return status;
2171 }
2172
2173 int qla4xxx_get_ip_state(struct scsi_qla_host *ha, uint32_t acb_idx,
2174                          uint32_t ip_idx, uint32_t *sts)
2175 {
2176         uint32_t mbox_cmd[MBOX_REG_COUNT];
2177         uint32_t mbox_sts[MBOX_REG_COUNT];
2178         int status = QLA_SUCCESS;
2179
2180         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2181         memset(&mbox_sts, 0, sizeof(mbox_sts));
2182         mbox_cmd[0] = MBOX_CMD_GET_IP_ADDR_STATE;
2183         mbox_cmd[1] = acb_idx;
2184         mbox_cmd[2] = ip_idx;
2185
2186         status = qla4xxx_mailbox_command(ha, 3, 8, &mbox_cmd[0], &mbox_sts[0]);
2187         if (status != QLA_SUCCESS) {
2188                 DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: "
2189                                   "MBOX_CMD_GET_IP_ADDR_STATE failed w/ "
2190                                   "status %04X\n", __func__, mbox_sts[0]));
2191         }
2192         memcpy(sts, mbox_sts, sizeof(mbox_sts));
2193         return status;
2194 }
2195
2196 int qla4xxx_get_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
2197                       uint32_t offset, uint32_t size)
2198 {
2199         int status = QLA_SUCCESS;
2200         uint32_t mbox_cmd[MBOX_REG_COUNT];
2201         uint32_t mbox_sts[MBOX_REG_COUNT];
2202
2203         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2204         memset(&mbox_sts, 0, sizeof(mbox_sts));
2205
2206         mbox_cmd[0] = MBOX_CMD_GET_NVRAM;
2207         mbox_cmd[1] = LSDW(nvram_dma);
2208         mbox_cmd[2] = MSDW(nvram_dma);
2209         mbox_cmd[3] = offset;
2210         mbox_cmd[4] = size;
2211
2212         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
2213                                          &mbox_sts[0]);
2214         if (status != QLA_SUCCESS) {
2215                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2216                                   "status %04X\n", ha->host_no, __func__,
2217                                   mbox_sts[0]));
2218         }
2219         return status;
2220 }
2221
2222 int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
2223                       uint32_t offset, uint32_t size)
2224 {
2225         int status = QLA_SUCCESS;
2226         uint32_t mbox_cmd[MBOX_REG_COUNT];
2227         uint32_t mbox_sts[MBOX_REG_COUNT];
2228
2229         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2230         memset(&mbox_sts, 0, sizeof(mbox_sts));
2231
2232         mbox_cmd[0] = MBOX_CMD_SET_NVRAM;
2233         mbox_cmd[1] = LSDW(nvram_dma);
2234         mbox_cmd[2] = MSDW(nvram_dma);
2235         mbox_cmd[3] = offset;
2236         mbox_cmd[4] = size;
2237
2238         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
2239                                          &mbox_sts[0]);
2240         if (status != QLA_SUCCESS) {
2241                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2242                                   "status %04X\n", ha->host_no, __func__,
2243                                   mbox_sts[0]));
2244         }
2245         return status;
2246 }
2247
2248 int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
2249                                      uint32_t region, uint32_t field0,
2250                                      uint32_t field1)
2251 {
2252         int status = QLA_SUCCESS;
2253         uint32_t mbox_cmd[MBOX_REG_COUNT];
2254         uint32_t mbox_sts[MBOX_REG_COUNT];
2255
2256         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2257         memset(&mbox_sts, 0, sizeof(mbox_sts));
2258
2259         mbox_cmd[0] = MBOX_CMD_RESTORE_FACTORY_DEFAULTS;
2260         mbox_cmd[3] = region;
2261         mbox_cmd[4] = field0;
2262         mbox_cmd[5] = field1;
2263
2264         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0],
2265                                          &mbox_sts[0]);
2266         if (status != QLA_SUCCESS) {
2267                 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2268                                   "status %04X\n", ha->host_no, __func__,
2269                                   mbox_sts[0]));
2270         }
2271         return status;
2272 }
2273
2274 /**
2275  * qla4_8xxx_set_param - set driver version in firmware.
2276  * @ha: Pointer to host adapter structure.
2277  * @param: Parameter to set i.e driver version
2278  **/
2279 int qla4_8xxx_set_param(struct scsi_qla_host *ha, int param)
2280 {
2281         uint32_t mbox_cmd[MBOX_REG_COUNT];
2282         uint32_t mbox_sts[MBOX_REG_COUNT];
2283         uint32_t status;
2284
2285         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2286         memset(&mbox_sts, 0, sizeof(mbox_sts));
2287
2288         mbox_cmd[0] = MBOX_CMD_SET_PARAM;
2289         if (param == SET_DRVR_VERSION) {
2290                 mbox_cmd[1] = SET_DRVR_VERSION;
2291                 strscpy((char *)&mbox_cmd[2], QLA4XXX_DRIVER_VERSION,
2292                         MAX_DRVR_VER_LEN);
2293         } else {
2294                 ql4_printk(KERN_ERR, ha, "%s: invalid parameter 0x%x\n",
2295                            __func__, param);
2296                 status = QLA_ERROR;
2297                 goto exit_set_param;
2298         }
2299
2300         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, mbox_cmd,
2301                                          mbox_sts);
2302         if (status == QLA_ERROR)
2303                 ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
2304                            __func__, mbox_sts[0]);
2305
2306 exit_set_param:
2307         return status;
2308 }
2309
2310 /**
2311  * qla4_83xx_post_idc_ack - post IDC ACK
2312  * @ha: Pointer to host adapter structure.
2313  *
2314  * Posts IDC ACK for IDC Request Notification AEN.
2315  **/
2316 int qla4_83xx_post_idc_ack(struct scsi_qla_host *ha)
2317 {
2318         uint32_t mbox_cmd[MBOX_REG_COUNT];
2319         uint32_t mbox_sts[MBOX_REG_COUNT];
2320         int status;
2321
2322         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2323         memset(&mbox_sts, 0, sizeof(mbox_sts));
2324
2325         mbox_cmd[0] = MBOX_CMD_IDC_ACK;
2326         mbox_cmd[1] = ha->idc_info.request_desc;
2327         mbox_cmd[2] = ha->idc_info.info1;
2328         mbox_cmd[3] = ha->idc_info.info2;
2329         mbox_cmd[4] = ha->idc_info.info3;
2330
2331         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
2332                                          mbox_cmd, mbox_sts);
2333         if (status == QLA_ERROR)
2334                 ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", __func__,
2335                            mbox_sts[0]);
2336         else
2337                ql4_printk(KERN_INFO, ha, "%s: IDC ACK posted\n", __func__);
2338
2339         return status;
2340 }
2341
2342 int qla4_84xx_config_acb(struct scsi_qla_host *ha, int acb_config)
2343 {
2344         uint32_t mbox_cmd[MBOX_REG_COUNT];
2345         uint32_t mbox_sts[MBOX_REG_COUNT];
2346         struct addr_ctrl_blk *acb = NULL;
2347         uint32_t acb_len = sizeof(struct addr_ctrl_blk);
2348         int rval = QLA_SUCCESS;
2349         dma_addr_t acb_dma;
2350
2351         acb = dma_alloc_coherent(&ha->pdev->dev,
2352                                  sizeof(struct addr_ctrl_blk),
2353                                  &acb_dma, GFP_KERNEL);
2354         if (!acb) {
2355                 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", __func__);
2356                 rval = QLA_ERROR;
2357                 goto exit_config_acb;
2358         }
2359         memset(acb, 0, acb_len);
2360
2361         switch (acb_config) {
2362         case ACB_CONFIG_DISABLE:
2363                 rval = qla4xxx_get_acb(ha, acb_dma, 0, acb_len);
2364                 if (rval != QLA_SUCCESS)
2365                         goto exit_free_acb;
2366
2367                 rval = qla4xxx_disable_acb(ha);
2368                 if (rval != QLA_SUCCESS)
2369                         goto exit_free_acb;
2370
2371                 if (!ha->saved_acb)
2372                         ha->saved_acb = kzalloc(acb_len, GFP_KERNEL);
2373
2374                 if (!ha->saved_acb) {
2375                         ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
2376                                    __func__);
2377                         rval = QLA_ERROR;
2378                         goto exit_free_acb;
2379                 }
2380                 memcpy(ha->saved_acb, acb, acb_len);
2381                 break;
2382         case ACB_CONFIG_SET:
2383
2384                 if (!ha->saved_acb) {
2385                         ql4_printk(KERN_ERR, ha, "%s: Can't set ACB, Saved ACB not available\n",
2386                                    __func__);
2387                         rval = QLA_ERROR;
2388                         goto exit_free_acb;
2389                 }
2390
2391                 memcpy(acb, ha->saved_acb, acb_len);
2392
2393                 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
2394                 if (rval != QLA_SUCCESS)
2395                         goto exit_free_acb;
2396
2397                 break;
2398         default:
2399                 ql4_printk(KERN_ERR, ha, "%s: Invalid ACB Configuration\n",
2400                            __func__);
2401         }
2402
2403 exit_free_acb:
2404         dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), acb,
2405                           acb_dma);
2406 exit_config_acb:
2407         if ((acb_config == ACB_CONFIG_SET) && ha->saved_acb) {
2408                 kfree(ha->saved_acb);
2409                 ha->saved_acb = NULL;
2410         }
2411         DEBUG2(ql4_printk(KERN_INFO, ha,
2412                           "%s %s\n", __func__,
2413                           rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
2414         return rval;
2415 }
2416
2417 int qla4_83xx_get_port_config(struct scsi_qla_host *ha, uint32_t *config)
2418 {
2419         uint32_t mbox_cmd[MBOX_REG_COUNT];
2420         uint32_t mbox_sts[MBOX_REG_COUNT];
2421         int status;
2422
2423         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2424         memset(&mbox_sts, 0, sizeof(mbox_sts));
2425
2426         mbox_cmd[0] = MBOX_CMD_GET_PORT_CONFIG;
2427
2428         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
2429                                          mbox_cmd, mbox_sts);
2430         if (status == QLA_SUCCESS)
2431                 *config = mbox_sts[1];
2432         else
2433                 ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", __func__,
2434                            mbox_sts[0]);
2435
2436         return status;
2437 }
2438
2439 int qla4_83xx_set_port_config(struct scsi_qla_host *ha, uint32_t *config)
2440 {
2441         uint32_t mbox_cmd[MBOX_REG_COUNT];
2442         uint32_t mbox_sts[MBOX_REG_COUNT];
2443         int status;
2444
2445         memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2446         memset(&mbox_sts, 0, sizeof(mbox_sts));
2447
2448         mbox_cmd[0] = MBOX_CMD_SET_PORT_CONFIG;
2449         mbox_cmd[1] = *config;
2450
2451         status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
2452                                 mbox_cmd, mbox_sts);
2453         if (status != QLA_SUCCESS)
2454                 ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", __func__,
2455                            mbox_sts[0]);
2456
2457         return status;
2458 }