1 /* 2 * QLogic iSCSI HBA Driver 3 * Copyright (c) 2003-2012 QLogic Corporation 4 * 5 * See LICENSE.qla4xxx for copyright and licensing details. 6 */ 7 #include <linux/moduleparam.h> 8 #include <linux/slab.h> 9 #include <linux/blkdev.h> 10 #include <linux/iscsi_boot_sysfs.h> 11 #include <linux/inet.h> 12 13 #include <scsi/scsi_tcq.h> 14 #include <scsi/scsicam.h> 15 16 #include "ql4_def.h" 17 #include "ql4_version.h" 18 #include "ql4_glbl.h" 19 #include "ql4_dbg.h" 20 #include "ql4_inline.h" 21 #include "ql4_83xx.h" 22 23 /* 24 * Driver version 25 */ 26 static char qla4xxx_version_str[40]; 27 28 /* 29 * SRB allocation cache 30 */ 31 static struct kmem_cache *srb_cachep; 32 33 /* 34 * Module parameter information and variables 35 */ 36 static int ql4xdisablesysfsboot = 1; 37 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); 38 MODULE_PARM_DESC(ql4xdisablesysfsboot, 39 " Set to disable exporting boot targets to sysfs.\n" 40 "\t\t 0 - Export boot targets\n" 41 "\t\t 1 - Do not export boot targets (Default)"); 42 43 int ql4xdontresethba; 44 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 45 MODULE_PARM_DESC(ql4xdontresethba, 46 " Don't reset the HBA for driver recovery.\n" 47 "\t\t 0 - It will reset HBA (Default)\n" 48 "\t\t 1 - It will NOT reset HBA"); 49 50 int ql4xextended_error_logging; 51 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 52 MODULE_PARM_DESC(ql4xextended_error_logging, 53 " Option to enable extended error logging.\n" 54 "\t\t 0 - no logging (Default)\n" 55 "\t\t 2 - debug logging"); 56 57 int ql4xenablemsix = 1; 58 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 59 MODULE_PARM_DESC(ql4xenablemsix, 60 " Set to enable MSI or MSI-X interrupt mechanism.\n" 61 "\t\t 0 = enable INTx interrupt mechanism.\n" 62 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n" 63 "\t\t 2 = enable MSI interrupt mechanism."); 64 65 #define QL4_DEF_QDEPTH 32 66 static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 67 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 68 MODULE_PARM_DESC(ql4xmaxqdepth, 69 " Maximum queue depth to report for target devices.\n" 70 "\t\t Default: 32."); 71 72 static int ql4xqfulltracking = 1; 73 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR); 74 MODULE_PARM_DESC(ql4xqfulltracking, 75 " Enable or disable dynamic tracking and adjustment of\n" 76 "\t\t scsi device queue depth.\n" 77 "\t\t 0 - Disable.\n" 78 "\t\t 1 - Enable. (Default)"); 79 80 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 81 module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 82 MODULE_PARM_DESC(ql4xsess_recovery_tmo, 83 " Target Session Recovery Timeout.\n" 84 "\t\t Default: 120 sec."); 85 86 int ql4xmdcapmask = 0x1F; 87 module_param(ql4xmdcapmask, int, S_IRUGO); 88 MODULE_PARM_DESC(ql4xmdcapmask, 89 " Set the Minidump driver capture mask level.\n" 90 "\t\t Default is 0x1F.\n" 91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F"); 92 93 int ql4xenablemd = 1; 94 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR); 95 MODULE_PARM_DESC(ql4xenablemd, 96 " Set to enable minidump.\n" 97 "\t\t 0 - disable minidump\n" 98 "\t\t 1 - enable minidump (Default)"); 99 100 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 101 /* 102 * SCSI host template entry points 103 */ 104 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 105 106 /* 107 * iSCSI template entry points 108 */ 109 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 110 enum iscsi_param param, char *buf); 111 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 112 enum iscsi_param param, char *buf); 113 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 114 enum iscsi_host_param param, char *buf); 115 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, 116 uint32_t len); 117 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 118 enum iscsi_param_type param_type, 119 int param, char *buf); 120 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 121 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 122 struct sockaddr *dst_addr, 123 int non_blocking); 124 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 125 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 126 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 127 enum iscsi_param param, char *buf); 128 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 129 static struct iscsi_cls_conn * 130 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 131 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 132 struct iscsi_cls_conn *cls_conn, 133 uint64_t transport_fd, int is_leading); 134 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 135 static struct iscsi_cls_session * 136 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 137 uint16_t qdepth, uint32_t initial_cmdsn); 138 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 139 static void qla4xxx_task_work(struct work_struct *wdata); 140 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 141 static int qla4xxx_task_xmit(struct iscsi_task *); 142 static void qla4xxx_task_cleanup(struct iscsi_task *); 143 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 144 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 145 struct iscsi_stats *stats); 146 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 147 uint32_t iface_type, uint32_t payload_size, 148 uint32_t pid, struct sockaddr *dst_addr); 149 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 150 uint32_t *num_entries, char *buf); 151 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx); 152 153 /* 154 * SCSI host template entry points 155 */ 156 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 157 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 158 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 159 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 160 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 161 static int qla4xxx_slave_alloc(struct scsi_device *device); 162 static int qla4xxx_slave_configure(struct scsi_device *device); 163 static void qla4xxx_slave_destroy(struct scsi_device *sdev); 164 static umode_t qla4_attr_is_visible(int param_type, int param); 165 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); 166 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 167 int reason); 168 169 static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 170 QLA82XX_LEGACY_INTR_CONFIG; 171 172 static struct scsi_host_template qla4xxx_driver_template = { 173 .module = THIS_MODULE, 174 .name = DRIVER_NAME, 175 .proc_name = DRIVER_NAME, 176 .queuecommand = qla4xxx_queuecommand, 177 178 .eh_abort_handler = qla4xxx_eh_abort, 179 .eh_device_reset_handler = qla4xxx_eh_device_reset, 180 .eh_target_reset_handler = qla4xxx_eh_target_reset, 181 .eh_host_reset_handler = qla4xxx_eh_host_reset, 182 .eh_timed_out = qla4xxx_eh_cmd_timed_out, 183 184 .slave_configure = qla4xxx_slave_configure, 185 .slave_alloc = qla4xxx_slave_alloc, 186 .slave_destroy = qla4xxx_slave_destroy, 187 .change_queue_depth = qla4xxx_change_queue_depth, 188 189 .this_id = -1, 190 .cmd_per_lun = 3, 191 .use_clustering = ENABLE_CLUSTERING, 192 .sg_tablesize = SG_ALL, 193 194 .max_sectors = 0xFFFF, 195 .shost_attrs = qla4xxx_host_attrs, 196 .host_reset = qla4xxx_host_reset, 197 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 198 }; 199 200 static struct iscsi_transport qla4xxx_iscsi_transport = { 201 .owner = THIS_MODULE, 202 .name = DRIVER_NAME, 203 .caps = CAP_TEXT_NEGO | 204 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 205 CAP_DATADGST | CAP_LOGIN_OFFLOAD | 206 CAP_MULTI_R2T, 207 .attr_is_visible = qla4_attr_is_visible, 208 .create_session = qla4xxx_session_create, 209 .destroy_session = qla4xxx_session_destroy, 210 .start_conn = qla4xxx_conn_start, 211 .create_conn = qla4xxx_conn_create, 212 .bind_conn = qla4xxx_conn_bind, 213 .stop_conn = iscsi_conn_stop, 214 .destroy_conn = qla4xxx_conn_destroy, 215 .set_param = iscsi_set_param, 216 .get_conn_param = qla4xxx_conn_get_param, 217 .get_session_param = qla4xxx_session_get_param, 218 .get_ep_param = qla4xxx_get_ep_param, 219 .ep_connect = qla4xxx_ep_connect, 220 .ep_poll = qla4xxx_ep_poll, 221 .ep_disconnect = qla4xxx_ep_disconnect, 222 .get_stats = qla4xxx_conn_get_stats, 223 .send_pdu = iscsi_conn_send_pdu, 224 .xmit_task = qla4xxx_task_xmit, 225 .cleanup_task = qla4xxx_task_cleanup, 226 .alloc_pdu = qla4xxx_alloc_pdu, 227 228 .get_host_param = qla4xxx_host_get_param, 229 .set_iface_param = qla4xxx_iface_set_param, 230 .get_iface_param = qla4xxx_get_iface_param, 231 .bsg_request = qla4xxx_bsg_request, 232 .send_ping = qla4xxx_send_ping, 233 .get_chap = qla4xxx_get_chap_list, 234 .delete_chap = qla4xxx_delete_chap, 235 }; 236 237 static struct scsi_transport_template *qla4xxx_scsi_transport; 238 239 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 240 uint32_t iface_type, uint32_t payload_size, 241 uint32_t pid, struct sockaddr *dst_addr) 242 { 243 struct scsi_qla_host *ha = to_qla_host(shost); 244 struct sockaddr_in *addr; 245 struct sockaddr_in6 *addr6; 246 uint32_t options = 0; 247 uint8_t ipaddr[IPv6_ADDR_LEN]; 248 int rval; 249 250 memset(ipaddr, 0, IPv6_ADDR_LEN); 251 /* IPv4 to IPv4 */ 252 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && 253 (dst_addr->sa_family == AF_INET)) { 254 addr = (struct sockaddr_in *)dst_addr; 255 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); 256 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " 257 "dest: %pI4\n", __func__, 258 &ha->ip_config.ip_address, ipaddr)); 259 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, 260 ipaddr); 261 if (rval) 262 rval = -EINVAL; 263 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && 264 (dst_addr->sa_family == AF_INET6)) { 265 /* IPv6 to IPv6 */ 266 addr6 = (struct sockaddr_in6 *)dst_addr; 267 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); 268 269 options |= PING_IPV6_PROTOCOL_ENABLE; 270 271 /* Ping using LinkLocal address */ 272 if ((iface_num == 0) || (iface_num == 1)) { 273 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " 274 "src: %pI6 dest: %pI6\n", __func__, 275 &ha->ip_config.ipv6_link_local_addr, 276 ipaddr)); 277 options |= PING_IPV6_LINKLOCAL_ADDR; 278 rval = qla4xxx_ping_iocb(ha, options, payload_size, 279 pid, ipaddr); 280 } else { 281 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " 282 "not supported\n", __func__, iface_num); 283 rval = -ENOSYS; 284 goto exit_send_ping; 285 } 286 287 /* 288 * If ping using LinkLocal address fails, try ping using 289 * IPv6 address 290 */ 291 if (rval != QLA_SUCCESS) { 292 options &= ~PING_IPV6_LINKLOCAL_ADDR; 293 if (iface_num == 0) { 294 options |= PING_IPV6_ADDR0; 295 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 296 "Ping src: %pI6 " 297 "dest: %pI6\n", __func__, 298 &ha->ip_config.ipv6_addr0, 299 ipaddr)); 300 } else if (iface_num == 1) { 301 options |= PING_IPV6_ADDR1; 302 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 303 "Ping src: %pI6 " 304 "dest: %pI6\n", __func__, 305 &ha->ip_config.ipv6_addr1, 306 ipaddr)); 307 } 308 rval = qla4xxx_ping_iocb(ha, options, payload_size, 309 pid, ipaddr); 310 if (rval) 311 rval = -EINVAL; 312 } 313 } else 314 rval = -ENOSYS; 315 exit_send_ping: 316 return rval; 317 } 318 319 static umode_t qla4_attr_is_visible(int param_type, int param) 320 { 321 switch (param_type) { 322 case ISCSI_HOST_PARAM: 323 switch (param) { 324 case ISCSI_HOST_PARAM_HWADDRESS: 325 case ISCSI_HOST_PARAM_IPADDRESS: 326 case ISCSI_HOST_PARAM_INITIATOR_NAME: 327 case ISCSI_HOST_PARAM_PORT_STATE: 328 case ISCSI_HOST_PARAM_PORT_SPEED: 329 return S_IRUGO; 330 default: 331 return 0; 332 } 333 case ISCSI_PARAM: 334 switch (param) { 335 case ISCSI_PARAM_PERSISTENT_ADDRESS: 336 case ISCSI_PARAM_PERSISTENT_PORT: 337 case ISCSI_PARAM_CONN_ADDRESS: 338 case ISCSI_PARAM_CONN_PORT: 339 case ISCSI_PARAM_TARGET_NAME: 340 case ISCSI_PARAM_TPGT: 341 case ISCSI_PARAM_TARGET_ALIAS: 342 case ISCSI_PARAM_MAX_BURST: 343 case ISCSI_PARAM_MAX_R2T: 344 case ISCSI_PARAM_FIRST_BURST: 345 case ISCSI_PARAM_MAX_RECV_DLENGTH: 346 case ISCSI_PARAM_MAX_XMIT_DLENGTH: 347 case ISCSI_PARAM_IFACE_NAME: 348 case ISCSI_PARAM_CHAP_OUT_IDX: 349 case ISCSI_PARAM_CHAP_IN_IDX: 350 case ISCSI_PARAM_USERNAME: 351 case ISCSI_PARAM_PASSWORD: 352 case ISCSI_PARAM_USERNAME_IN: 353 case ISCSI_PARAM_PASSWORD_IN: 354 return S_IRUGO; 355 default: 356 return 0; 357 } 358 case ISCSI_NET_PARAM: 359 switch (param) { 360 case ISCSI_NET_PARAM_IPV4_ADDR: 361 case ISCSI_NET_PARAM_IPV4_SUBNET: 362 case ISCSI_NET_PARAM_IPV4_GW: 363 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 364 case ISCSI_NET_PARAM_IFACE_ENABLE: 365 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 366 case ISCSI_NET_PARAM_IPV6_ADDR: 367 case ISCSI_NET_PARAM_IPV6_ROUTER: 368 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 369 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 370 case ISCSI_NET_PARAM_VLAN_ID: 371 case ISCSI_NET_PARAM_VLAN_PRIORITY: 372 case ISCSI_NET_PARAM_VLAN_ENABLED: 373 case ISCSI_NET_PARAM_MTU: 374 case ISCSI_NET_PARAM_PORT: 375 return S_IRUGO; 376 default: 377 return 0; 378 } 379 } 380 381 return 0; 382 } 383 384 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 385 uint32_t *num_entries, char *buf) 386 { 387 struct scsi_qla_host *ha = to_qla_host(shost); 388 struct ql4_chap_table *chap_table; 389 struct iscsi_chap_rec *chap_rec; 390 int max_chap_entries = 0; 391 int valid_chap_entries = 0; 392 int ret = 0, i; 393 394 if (is_qla8022(ha)) 395 max_chap_entries = (ha->hw.flt_chap_size / 2) / 396 sizeof(struct ql4_chap_table); 397 else 398 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 399 400 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 401 __func__, *num_entries, chap_tbl_idx); 402 403 if (!buf) { 404 ret = -ENOMEM; 405 goto exit_get_chap_list; 406 } 407 408 chap_rec = (struct iscsi_chap_rec *) buf; 409 mutex_lock(&ha->chap_sem); 410 for (i = chap_tbl_idx; i < max_chap_entries; i++) { 411 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 412 if (chap_table->cookie != 413 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) 414 continue; 415 416 chap_rec->chap_tbl_idx = i; 417 strncpy(chap_rec->username, chap_table->name, 418 ISCSI_CHAP_AUTH_NAME_MAX_LEN); 419 strncpy(chap_rec->password, chap_table->secret, 420 QL4_CHAP_MAX_SECRET_LEN); 421 chap_rec->password_length = chap_table->secret_len; 422 423 if (chap_table->flags & BIT_7) /* local */ 424 chap_rec->chap_type = CHAP_TYPE_OUT; 425 426 if (chap_table->flags & BIT_6) /* peer */ 427 chap_rec->chap_type = CHAP_TYPE_IN; 428 429 chap_rec++; 430 431 valid_chap_entries++; 432 if (valid_chap_entries == *num_entries) 433 break; 434 else 435 continue; 436 } 437 mutex_unlock(&ha->chap_sem); 438 439 exit_get_chap_list: 440 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 441 __func__, valid_chap_entries); 442 *num_entries = valid_chap_entries; 443 return ret; 444 } 445 446 static int __qla4xxx_is_chap_active(struct device *dev, void *data) 447 { 448 int ret = 0; 449 uint16_t *chap_tbl_idx = (uint16_t *) data; 450 struct iscsi_cls_session *cls_session; 451 struct iscsi_session *sess; 452 struct ddb_entry *ddb_entry; 453 454 if (!iscsi_is_session_dev(dev)) 455 goto exit_is_chap_active; 456 457 cls_session = iscsi_dev_to_session(dev); 458 sess = cls_session->dd_data; 459 ddb_entry = sess->dd_data; 460 461 if (iscsi_session_chkready(cls_session)) 462 goto exit_is_chap_active; 463 464 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 465 ret = 1; 466 467 exit_is_chap_active: 468 return ret; 469 } 470 471 static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 472 uint16_t chap_tbl_idx) 473 { 474 int ret = 0; 475 476 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 477 __qla4xxx_is_chap_active); 478 479 return ret; 480 } 481 482 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 483 { 484 struct scsi_qla_host *ha = to_qla_host(shost); 485 struct ql4_chap_table *chap_table; 486 dma_addr_t chap_dma; 487 int max_chap_entries = 0; 488 uint32_t offset = 0; 489 uint32_t chap_size; 490 int ret = 0; 491 492 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 493 if (chap_table == NULL) 494 return -ENOMEM; 495 496 memset(chap_table, 0, sizeof(struct ql4_chap_table)); 497 498 if (is_qla8022(ha)) 499 max_chap_entries = (ha->hw.flt_chap_size / 2) / 500 sizeof(struct ql4_chap_table); 501 else 502 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 503 504 if (chap_tbl_idx > max_chap_entries) { 505 ret = -EINVAL; 506 goto exit_delete_chap; 507 } 508 509 /* Check if chap index is in use. 510 * If chap is in use don't delet chap entry */ 511 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 512 if (ret) { 513 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 514 "delete from flash\n", chap_tbl_idx); 515 ret = -EBUSY; 516 goto exit_delete_chap; 517 } 518 519 chap_size = sizeof(struct ql4_chap_table); 520 if (is_qla40XX(ha)) 521 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 522 else { 523 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 524 /* flt_chap_size is CHAP table size for both ports 525 * so divide it by 2 to calculate the offset for second port 526 */ 527 if (ha->port_num == 1) 528 offset += (ha->hw.flt_chap_size / 2); 529 offset += (chap_tbl_idx * chap_size); 530 } 531 532 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 533 if (ret != QLA_SUCCESS) { 534 ret = -EINVAL; 535 goto exit_delete_chap; 536 } 537 538 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 539 __le16_to_cpu(chap_table->cookie))); 540 541 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 542 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 543 goto exit_delete_chap; 544 } 545 546 chap_table->cookie = __constant_cpu_to_le16(0xFFFF); 547 548 offset = FLASH_CHAP_OFFSET | 549 (chap_tbl_idx * sizeof(struct ql4_chap_table)); 550 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 551 FLASH_OPT_RMW_COMMIT); 552 if (ret == QLA_SUCCESS && ha->chap_list) { 553 mutex_lock(&ha->chap_sem); 554 /* Update ha chap_list cache */ 555 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 556 chap_table, sizeof(struct ql4_chap_table)); 557 mutex_unlock(&ha->chap_sem); 558 } 559 if (ret != QLA_SUCCESS) 560 ret = -EINVAL; 561 562 exit_delete_chap: 563 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 564 return ret; 565 } 566 567 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 568 enum iscsi_param_type param_type, 569 int param, char *buf) 570 { 571 struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 572 struct scsi_qla_host *ha = to_qla_host(shost); 573 int len = -ENOSYS; 574 575 if (param_type != ISCSI_NET_PARAM) 576 return -ENOSYS; 577 578 switch (param) { 579 case ISCSI_NET_PARAM_IPV4_ADDR: 580 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 581 break; 582 case ISCSI_NET_PARAM_IPV4_SUBNET: 583 len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 584 break; 585 case ISCSI_NET_PARAM_IPV4_GW: 586 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 587 break; 588 case ISCSI_NET_PARAM_IFACE_ENABLE: 589 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 590 len = sprintf(buf, "%s\n", 591 (ha->ip_config.ipv4_options & 592 IPOPT_IPV4_PROTOCOL_ENABLE) ? 593 "enabled" : "disabled"); 594 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 595 len = sprintf(buf, "%s\n", 596 (ha->ip_config.ipv6_options & 597 IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 598 "enabled" : "disabled"); 599 break; 600 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 601 len = sprintf(buf, "%s\n", 602 (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 603 "dhcp" : "static"); 604 break; 605 case ISCSI_NET_PARAM_IPV6_ADDR: 606 if (iface->iface_num == 0) 607 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 608 if (iface->iface_num == 1) 609 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 610 break; 611 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 612 len = sprintf(buf, "%pI6\n", 613 &ha->ip_config.ipv6_link_local_addr); 614 break; 615 case ISCSI_NET_PARAM_IPV6_ROUTER: 616 len = sprintf(buf, "%pI6\n", 617 &ha->ip_config.ipv6_default_router_addr); 618 break; 619 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 620 len = sprintf(buf, "%s\n", 621 (ha->ip_config.ipv6_addl_options & 622 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 623 "nd" : "static"); 624 break; 625 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 626 len = sprintf(buf, "%s\n", 627 (ha->ip_config.ipv6_addl_options & 628 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 629 "auto" : "static"); 630 break; 631 case ISCSI_NET_PARAM_VLAN_ID: 632 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 633 len = sprintf(buf, "%d\n", 634 (ha->ip_config.ipv4_vlan_tag & 635 ISCSI_MAX_VLAN_ID)); 636 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 637 len = sprintf(buf, "%d\n", 638 (ha->ip_config.ipv6_vlan_tag & 639 ISCSI_MAX_VLAN_ID)); 640 break; 641 case ISCSI_NET_PARAM_VLAN_PRIORITY: 642 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 643 len = sprintf(buf, "%d\n", 644 ((ha->ip_config.ipv4_vlan_tag >> 13) & 645 ISCSI_MAX_VLAN_PRIORITY)); 646 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 647 len = sprintf(buf, "%d\n", 648 ((ha->ip_config.ipv6_vlan_tag >> 13) & 649 ISCSI_MAX_VLAN_PRIORITY)); 650 break; 651 case ISCSI_NET_PARAM_VLAN_ENABLED: 652 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 653 len = sprintf(buf, "%s\n", 654 (ha->ip_config.ipv4_options & 655 IPOPT_VLAN_TAGGING_ENABLE) ? 656 "enabled" : "disabled"); 657 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 658 len = sprintf(buf, "%s\n", 659 (ha->ip_config.ipv6_options & 660 IPV6_OPT_VLAN_TAGGING_ENABLE) ? 661 "enabled" : "disabled"); 662 break; 663 case ISCSI_NET_PARAM_MTU: 664 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 665 break; 666 case ISCSI_NET_PARAM_PORT: 667 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 668 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port); 669 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 670 len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port); 671 break; 672 default: 673 len = -ENOSYS; 674 } 675 676 return len; 677 } 678 679 static struct iscsi_endpoint * 680 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 681 int non_blocking) 682 { 683 int ret; 684 struct iscsi_endpoint *ep; 685 struct qla_endpoint *qla_ep; 686 struct scsi_qla_host *ha; 687 struct sockaddr_in *addr; 688 struct sockaddr_in6 *addr6; 689 690 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 691 if (!shost) { 692 ret = -ENXIO; 693 printk(KERN_ERR "%s: shost is NULL\n", 694 __func__); 695 return ERR_PTR(ret); 696 } 697 698 ha = iscsi_host_priv(shost); 699 700 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 701 if (!ep) { 702 ret = -ENOMEM; 703 return ERR_PTR(ret); 704 } 705 706 qla_ep = ep->dd_data; 707 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 708 if (dst_addr->sa_family == AF_INET) { 709 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 710 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 711 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 712 (char *)&addr->sin_addr)); 713 } else if (dst_addr->sa_family == AF_INET6) { 714 memcpy(&qla_ep->dst_addr, dst_addr, 715 sizeof(struct sockaddr_in6)); 716 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 717 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 718 (char *)&addr6->sin6_addr)); 719 } 720 721 qla_ep->host = shost; 722 723 return ep; 724 } 725 726 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 727 { 728 struct qla_endpoint *qla_ep; 729 struct scsi_qla_host *ha; 730 int ret = 0; 731 732 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 733 qla_ep = ep->dd_data; 734 ha = to_qla_host(qla_ep->host); 735 736 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 737 ret = 1; 738 739 return ret; 740 } 741 742 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 743 { 744 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 745 iscsi_destroy_endpoint(ep); 746 } 747 748 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 749 enum iscsi_param param, 750 char *buf) 751 { 752 struct qla_endpoint *qla_ep = ep->dd_data; 753 struct sockaddr *dst_addr; 754 755 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 756 757 switch (param) { 758 case ISCSI_PARAM_CONN_PORT: 759 case ISCSI_PARAM_CONN_ADDRESS: 760 if (!qla_ep) 761 return -ENOTCONN; 762 763 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 764 if (!dst_addr) 765 return -ENOTCONN; 766 767 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 768 &qla_ep->dst_addr, param, buf); 769 default: 770 return -ENOSYS; 771 } 772 } 773 774 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 775 struct iscsi_stats *stats) 776 { 777 struct iscsi_session *sess; 778 struct iscsi_cls_session *cls_sess; 779 struct ddb_entry *ddb_entry; 780 struct scsi_qla_host *ha; 781 struct ql_iscsi_stats *ql_iscsi_stats; 782 int stats_size; 783 int ret; 784 dma_addr_t iscsi_stats_dma; 785 786 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 787 788 cls_sess = iscsi_conn_to_session(cls_conn); 789 sess = cls_sess->dd_data; 790 ddb_entry = sess->dd_data; 791 ha = ddb_entry->ha; 792 793 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 794 /* Allocate memory */ 795 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 796 &iscsi_stats_dma, GFP_KERNEL); 797 if (!ql_iscsi_stats) { 798 ql4_printk(KERN_ERR, ha, 799 "Unable to allocate memory for iscsi stats\n"); 800 goto exit_get_stats; 801 } 802 803 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 804 iscsi_stats_dma); 805 if (ret != QLA_SUCCESS) { 806 ql4_printk(KERN_ERR, ha, 807 "Unable to retrieve iscsi stats\n"); 808 goto free_stats; 809 } 810 811 /* octets */ 812 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 813 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 814 /* xmit pdus */ 815 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 816 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 817 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 818 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 819 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 820 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 821 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 822 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 823 /* recv pdus */ 824 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 825 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 826 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 827 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 828 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 829 stats->logoutrsp_pdus = 830 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 831 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 832 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 833 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 834 835 free_stats: 836 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 837 iscsi_stats_dma); 838 exit_get_stats: 839 return; 840 } 841 842 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 843 { 844 struct iscsi_cls_session *session; 845 struct iscsi_session *sess; 846 unsigned long flags; 847 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 848 849 session = starget_to_session(scsi_target(sc->device)); 850 sess = session->dd_data; 851 852 spin_lock_irqsave(&session->lock, flags); 853 if (session->state == ISCSI_SESSION_FAILED) 854 ret = BLK_EH_RESET_TIMER; 855 spin_unlock_irqrestore(&session->lock, flags); 856 857 return ret; 858 } 859 860 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 861 { 862 struct scsi_qla_host *ha = to_qla_host(shost); 863 struct iscsi_cls_host *ihost = shost->shost_data; 864 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 865 866 qla4xxx_get_firmware_state(ha); 867 868 switch (ha->addl_fw_state & 0x0F00) { 869 case FW_ADDSTATE_LINK_SPEED_10MBPS: 870 speed = ISCSI_PORT_SPEED_10MBPS; 871 break; 872 case FW_ADDSTATE_LINK_SPEED_100MBPS: 873 speed = ISCSI_PORT_SPEED_100MBPS; 874 break; 875 case FW_ADDSTATE_LINK_SPEED_1GBPS: 876 speed = ISCSI_PORT_SPEED_1GBPS; 877 break; 878 case FW_ADDSTATE_LINK_SPEED_10GBPS: 879 speed = ISCSI_PORT_SPEED_10GBPS; 880 break; 881 } 882 ihost->port_speed = speed; 883 } 884 885 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 886 { 887 struct scsi_qla_host *ha = to_qla_host(shost); 888 struct iscsi_cls_host *ihost = shost->shost_data; 889 uint32_t state = ISCSI_PORT_STATE_DOWN; 890 891 if (test_bit(AF_LINK_UP, &ha->flags)) 892 state = ISCSI_PORT_STATE_UP; 893 894 ihost->port_state = state; 895 } 896 897 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 898 enum iscsi_host_param param, char *buf) 899 { 900 struct scsi_qla_host *ha = to_qla_host(shost); 901 int len; 902 903 switch (param) { 904 case ISCSI_HOST_PARAM_HWADDRESS: 905 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 906 break; 907 case ISCSI_HOST_PARAM_IPADDRESS: 908 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 909 break; 910 case ISCSI_HOST_PARAM_INITIATOR_NAME: 911 len = sprintf(buf, "%s\n", ha->name_string); 912 break; 913 case ISCSI_HOST_PARAM_PORT_STATE: 914 qla4xxx_set_port_state(shost); 915 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 916 break; 917 case ISCSI_HOST_PARAM_PORT_SPEED: 918 qla4xxx_set_port_speed(shost); 919 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 920 break; 921 default: 922 return -ENOSYS; 923 } 924 925 return len; 926 } 927 928 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 929 { 930 if (ha->iface_ipv4) 931 return; 932 933 /* IPv4 */ 934 ha->iface_ipv4 = iscsi_create_iface(ha->host, 935 &qla4xxx_iscsi_transport, 936 ISCSI_IFACE_TYPE_IPV4, 0, 0); 937 if (!ha->iface_ipv4) 938 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 939 "iface0.\n"); 940 } 941 942 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 943 { 944 if (!ha->iface_ipv6_0) 945 /* IPv6 iface-0 */ 946 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 947 &qla4xxx_iscsi_transport, 948 ISCSI_IFACE_TYPE_IPV6, 0, 949 0); 950 if (!ha->iface_ipv6_0) 951 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 952 "iface0.\n"); 953 954 if (!ha->iface_ipv6_1) 955 /* IPv6 iface-1 */ 956 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 957 &qla4xxx_iscsi_transport, 958 ISCSI_IFACE_TYPE_IPV6, 1, 959 0); 960 if (!ha->iface_ipv6_1) 961 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 962 "iface1.\n"); 963 } 964 965 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 966 { 967 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 968 qla4xxx_create_ipv4_iface(ha); 969 970 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 971 qla4xxx_create_ipv6_iface(ha); 972 } 973 974 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 975 { 976 if (ha->iface_ipv4) { 977 iscsi_destroy_iface(ha->iface_ipv4); 978 ha->iface_ipv4 = NULL; 979 } 980 } 981 982 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 983 { 984 if (ha->iface_ipv6_0) { 985 iscsi_destroy_iface(ha->iface_ipv6_0); 986 ha->iface_ipv6_0 = NULL; 987 } 988 if (ha->iface_ipv6_1) { 989 iscsi_destroy_iface(ha->iface_ipv6_1); 990 ha->iface_ipv6_1 = NULL; 991 } 992 } 993 994 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 995 { 996 qla4xxx_destroy_ipv4_iface(ha); 997 qla4xxx_destroy_ipv6_iface(ha); 998 } 999 1000 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 1001 struct iscsi_iface_param_info *iface_param, 1002 struct addr_ctrl_blk *init_fw_cb) 1003 { 1004 /* 1005 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 1006 * iface_num 1 is valid only for IPv6 Addr. 1007 */ 1008 switch (iface_param->param) { 1009 case ISCSI_NET_PARAM_IPV6_ADDR: 1010 if (iface_param->iface_num & 0x1) 1011 /* IPv6 Addr 1 */ 1012 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 1013 sizeof(init_fw_cb->ipv6_addr1)); 1014 else 1015 /* IPv6 Addr 0 */ 1016 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 1017 sizeof(init_fw_cb->ipv6_addr0)); 1018 break; 1019 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1020 if (iface_param->iface_num & 0x1) 1021 break; 1022 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 1023 sizeof(init_fw_cb->ipv6_if_id)); 1024 break; 1025 case ISCSI_NET_PARAM_IPV6_ROUTER: 1026 if (iface_param->iface_num & 0x1) 1027 break; 1028 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 1029 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 1030 break; 1031 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1032 /* Autocfg applies to even interface */ 1033 if (iface_param->iface_num & 0x1) 1034 break; 1035 1036 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 1037 init_fw_cb->ipv6_addtl_opts &= 1038 cpu_to_le16( 1039 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 1040 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 1041 init_fw_cb->ipv6_addtl_opts |= 1042 cpu_to_le16( 1043 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 1044 else 1045 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 1046 "IPv6 addr\n"); 1047 break; 1048 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1049 /* Autocfg applies to even interface */ 1050 if (iface_param->iface_num & 0x1) 1051 break; 1052 1053 if (iface_param->value[0] == 1054 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 1055 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 1056 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 1057 else if (iface_param->value[0] == 1058 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 1059 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 1060 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 1061 else 1062 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 1063 "IPv6 linklocal addr\n"); 1064 break; 1065 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 1066 /* Autocfg applies to even interface */ 1067 if (iface_param->iface_num & 0x1) 1068 break; 1069 1070 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 1071 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 1072 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 1073 break; 1074 case ISCSI_NET_PARAM_IFACE_ENABLE: 1075 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 1076 init_fw_cb->ipv6_opts |= 1077 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 1078 qla4xxx_create_ipv6_iface(ha); 1079 } else { 1080 init_fw_cb->ipv6_opts &= 1081 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 1082 0xFFFF); 1083 qla4xxx_destroy_ipv6_iface(ha); 1084 } 1085 break; 1086 case ISCSI_NET_PARAM_VLAN_TAG: 1087 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 1088 break; 1089 init_fw_cb->ipv6_vlan_tag = 1090 cpu_to_be16(*(uint16_t *)iface_param->value); 1091 break; 1092 case ISCSI_NET_PARAM_VLAN_ENABLED: 1093 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 1094 init_fw_cb->ipv6_opts |= 1095 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 1096 else 1097 init_fw_cb->ipv6_opts &= 1098 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 1099 break; 1100 case ISCSI_NET_PARAM_MTU: 1101 init_fw_cb->eth_mtu_size = 1102 cpu_to_le16(*(uint16_t *)iface_param->value); 1103 break; 1104 case ISCSI_NET_PARAM_PORT: 1105 /* Autocfg applies to even interface */ 1106 if (iface_param->iface_num & 0x1) 1107 break; 1108 1109 init_fw_cb->ipv6_port = 1110 cpu_to_le16(*(uint16_t *)iface_param->value); 1111 break; 1112 default: 1113 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 1114 iface_param->param); 1115 break; 1116 } 1117 } 1118 1119 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 1120 struct iscsi_iface_param_info *iface_param, 1121 struct addr_ctrl_blk *init_fw_cb) 1122 { 1123 switch (iface_param->param) { 1124 case ISCSI_NET_PARAM_IPV4_ADDR: 1125 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 1126 sizeof(init_fw_cb->ipv4_addr)); 1127 break; 1128 case ISCSI_NET_PARAM_IPV4_SUBNET: 1129 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 1130 sizeof(init_fw_cb->ipv4_subnet)); 1131 break; 1132 case ISCSI_NET_PARAM_IPV4_GW: 1133 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 1134 sizeof(init_fw_cb->ipv4_gw_addr)); 1135 break; 1136 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1137 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 1138 init_fw_cb->ipv4_tcp_opts |= 1139 cpu_to_le16(TCPOPT_DHCP_ENABLE); 1140 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 1141 init_fw_cb->ipv4_tcp_opts &= 1142 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 1143 else 1144 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 1145 break; 1146 case ISCSI_NET_PARAM_IFACE_ENABLE: 1147 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 1148 init_fw_cb->ipv4_ip_opts |= 1149 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 1150 qla4xxx_create_ipv4_iface(ha); 1151 } else { 1152 init_fw_cb->ipv4_ip_opts &= 1153 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 1154 0xFFFF); 1155 qla4xxx_destroy_ipv4_iface(ha); 1156 } 1157 break; 1158 case ISCSI_NET_PARAM_VLAN_TAG: 1159 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 1160 break; 1161 init_fw_cb->ipv4_vlan_tag = 1162 cpu_to_be16(*(uint16_t *)iface_param->value); 1163 break; 1164 case ISCSI_NET_PARAM_VLAN_ENABLED: 1165 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 1166 init_fw_cb->ipv4_ip_opts |= 1167 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 1168 else 1169 init_fw_cb->ipv4_ip_opts &= 1170 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 1171 break; 1172 case ISCSI_NET_PARAM_MTU: 1173 init_fw_cb->eth_mtu_size = 1174 cpu_to_le16(*(uint16_t *)iface_param->value); 1175 break; 1176 case ISCSI_NET_PARAM_PORT: 1177 init_fw_cb->ipv4_port = 1178 cpu_to_le16(*(uint16_t *)iface_param->value); 1179 break; 1180 default: 1181 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 1182 iface_param->param); 1183 break; 1184 } 1185 } 1186 1187 static void 1188 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 1189 { 1190 struct addr_ctrl_blk_def *acb; 1191 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 1192 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 1193 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 1194 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 1195 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 1196 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 1197 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 1198 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 1199 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 1200 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 1201 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 1202 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 1203 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 1204 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 1205 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 1206 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 1207 } 1208 1209 static int 1210 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 1211 { 1212 struct scsi_qla_host *ha = to_qla_host(shost); 1213 int rval = 0; 1214 struct iscsi_iface_param_info *iface_param = NULL; 1215 struct addr_ctrl_blk *init_fw_cb = NULL; 1216 dma_addr_t init_fw_cb_dma; 1217 uint32_t mbox_cmd[MBOX_REG_COUNT]; 1218 uint32_t mbox_sts[MBOX_REG_COUNT]; 1219 uint32_t rem = len; 1220 struct nlattr *attr; 1221 1222 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 1223 sizeof(struct addr_ctrl_blk), 1224 &init_fw_cb_dma, GFP_KERNEL); 1225 if (!init_fw_cb) { 1226 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 1227 __func__); 1228 return -ENOMEM; 1229 } 1230 1231 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 1232 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 1233 memset(&mbox_sts, 0, sizeof(mbox_sts)); 1234 1235 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 1236 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 1237 rval = -EIO; 1238 goto exit_init_fw_cb; 1239 } 1240 1241 nla_for_each_attr(attr, data, len, rem) { 1242 iface_param = nla_data(attr); 1243 1244 if (iface_param->param_type != ISCSI_NET_PARAM) 1245 continue; 1246 1247 switch (iface_param->iface_type) { 1248 case ISCSI_IFACE_TYPE_IPV4: 1249 switch (iface_param->iface_num) { 1250 case 0: 1251 qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 1252 break; 1253 default: 1254 /* Cannot have more than one IPv4 interface */ 1255 ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 1256 "number = %d\n", 1257 iface_param->iface_num); 1258 break; 1259 } 1260 break; 1261 case ISCSI_IFACE_TYPE_IPV6: 1262 switch (iface_param->iface_num) { 1263 case 0: 1264 case 1: 1265 qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 1266 break; 1267 default: 1268 /* Cannot have more than two IPv6 interface */ 1269 ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 1270 "number = %d\n", 1271 iface_param->iface_num); 1272 break; 1273 } 1274 break; 1275 default: 1276 ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 1277 break; 1278 } 1279 } 1280 1281 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 1282 1283 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 1284 sizeof(struct addr_ctrl_blk), 1285 FLASH_OPT_RMW_COMMIT); 1286 if (rval != QLA_SUCCESS) { 1287 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 1288 __func__); 1289 rval = -EIO; 1290 goto exit_init_fw_cb; 1291 } 1292 1293 rval = qla4xxx_disable_acb(ha); 1294 if (rval != QLA_SUCCESS) { 1295 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 1296 __func__); 1297 rval = -EIO; 1298 goto exit_init_fw_cb; 1299 } 1300 1301 wait_for_completion_timeout(&ha->disable_acb_comp, 1302 DISABLE_ACB_TOV * HZ); 1303 1304 qla4xxx_initcb_to_acb(init_fw_cb); 1305 1306 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 1307 if (rval != QLA_SUCCESS) { 1308 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 1309 __func__); 1310 rval = -EIO; 1311 goto exit_init_fw_cb; 1312 } 1313 1314 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 1315 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 1316 init_fw_cb_dma); 1317 1318 exit_init_fw_cb: 1319 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 1320 init_fw_cb, init_fw_cb_dma); 1321 1322 return rval; 1323 } 1324 1325 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 1326 enum iscsi_param param, char *buf) 1327 { 1328 struct iscsi_session *sess = cls_sess->dd_data; 1329 struct ddb_entry *ddb_entry = sess->dd_data; 1330 struct scsi_qla_host *ha = ddb_entry->ha; 1331 int rval, len; 1332 uint16_t idx; 1333 1334 switch (param) { 1335 case ISCSI_PARAM_CHAP_IN_IDX: 1336 rval = qla4xxx_get_chap_index(ha, sess->username_in, 1337 sess->password_in, BIDI_CHAP, 1338 &idx); 1339 if (rval) 1340 return -EINVAL; 1341 1342 len = sprintf(buf, "%hu\n", idx); 1343 break; 1344 case ISCSI_PARAM_CHAP_OUT_IDX: 1345 rval = qla4xxx_get_chap_index(ha, sess->username, 1346 sess->password, LOCAL_CHAP, 1347 &idx); 1348 if (rval) 1349 return -EINVAL; 1350 1351 len = sprintf(buf, "%hu\n", idx); 1352 break; 1353 default: 1354 return iscsi_session_get_param(cls_sess, param, buf); 1355 } 1356 1357 return len; 1358 } 1359 1360 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 1361 enum iscsi_param param, char *buf) 1362 { 1363 struct iscsi_conn *conn; 1364 struct qla_conn *qla_conn; 1365 struct sockaddr *dst_addr; 1366 int len = 0; 1367 1368 conn = cls_conn->dd_data; 1369 qla_conn = conn->dd_data; 1370 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 1371 1372 switch (param) { 1373 case ISCSI_PARAM_CONN_PORT: 1374 case ISCSI_PARAM_CONN_ADDRESS: 1375 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1376 dst_addr, param, buf); 1377 default: 1378 return iscsi_conn_get_param(cls_conn, param, buf); 1379 } 1380 1381 return len; 1382 1383 } 1384 1385 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 1386 { 1387 uint32_t mbx_sts = 0; 1388 uint16_t tmp_ddb_index; 1389 int ret; 1390 1391 get_ddb_index: 1392 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 1393 1394 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 1395 DEBUG2(ql4_printk(KERN_INFO, ha, 1396 "Free DDB index not available\n")); 1397 ret = QLA_ERROR; 1398 goto exit_get_ddb_index; 1399 } 1400 1401 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 1402 goto get_ddb_index; 1403 1404 DEBUG2(ql4_printk(KERN_INFO, ha, 1405 "Found a free DDB index at %d\n", tmp_ddb_index)); 1406 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 1407 if (ret == QLA_ERROR) { 1408 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 1409 ql4_printk(KERN_INFO, ha, 1410 "DDB index = %d not available trying next\n", 1411 tmp_ddb_index); 1412 goto get_ddb_index; 1413 } 1414 DEBUG2(ql4_printk(KERN_INFO, ha, 1415 "Free FW DDB not available\n")); 1416 } 1417 1418 *ddb_index = tmp_ddb_index; 1419 1420 exit_get_ddb_index: 1421 return ret; 1422 } 1423 1424 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 1425 struct ddb_entry *ddb_entry, 1426 char *existing_ipaddr, 1427 char *user_ipaddr) 1428 { 1429 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 1430 char formatted_ipaddr[DDB_IPADDR_LEN]; 1431 int status = QLA_SUCCESS, ret = 0; 1432 1433 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 1434 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 1435 '\0', NULL); 1436 if (ret == 0) { 1437 status = QLA_ERROR; 1438 goto out_match; 1439 } 1440 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 1441 } else { 1442 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 1443 '\0', NULL); 1444 if (ret == 0) { 1445 status = QLA_ERROR; 1446 goto out_match; 1447 } 1448 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 1449 } 1450 1451 if (strcmp(existing_ipaddr, formatted_ipaddr)) 1452 status = QLA_ERROR; 1453 1454 out_match: 1455 return status; 1456 } 1457 1458 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 1459 struct iscsi_cls_conn *cls_conn) 1460 { 1461 int idx = 0, max_ddbs, rval; 1462 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1463 struct iscsi_session *sess, *existing_sess; 1464 struct iscsi_conn *conn, *existing_conn; 1465 struct ddb_entry *ddb_entry; 1466 1467 sess = cls_sess->dd_data; 1468 conn = cls_conn->dd_data; 1469 1470 if (sess->targetname == NULL || 1471 conn->persistent_address == NULL || 1472 conn->persistent_port == 0) 1473 return QLA_ERROR; 1474 1475 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 1476 MAX_DEV_DB_ENTRIES; 1477 1478 for (idx = 0; idx < max_ddbs; idx++) { 1479 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 1480 if (ddb_entry == NULL) 1481 continue; 1482 1483 if (ddb_entry->ddb_type != FLASH_DDB) 1484 continue; 1485 1486 existing_sess = ddb_entry->sess->dd_data; 1487 existing_conn = ddb_entry->conn->dd_data; 1488 1489 if (existing_sess->targetname == NULL || 1490 existing_conn->persistent_address == NULL || 1491 existing_conn->persistent_port == 0) 1492 continue; 1493 1494 DEBUG2(ql4_printk(KERN_INFO, ha, 1495 "IQN = %s User IQN = %s\n", 1496 existing_sess->targetname, 1497 sess->targetname)); 1498 1499 DEBUG2(ql4_printk(KERN_INFO, ha, 1500 "IP = %s User IP = %s\n", 1501 existing_conn->persistent_address, 1502 conn->persistent_address)); 1503 1504 DEBUG2(ql4_printk(KERN_INFO, ha, 1505 "Port = %d User Port = %d\n", 1506 existing_conn->persistent_port, 1507 conn->persistent_port)); 1508 1509 if (strcmp(existing_sess->targetname, sess->targetname)) 1510 continue; 1511 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 1512 existing_conn->persistent_address, 1513 conn->persistent_address); 1514 if (rval == QLA_ERROR) 1515 continue; 1516 if (existing_conn->persistent_port != conn->persistent_port) 1517 continue; 1518 break; 1519 } 1520 1521 if (idx == max_ddbs) 1522 return QLA_ERROR; 1523 1524 DEBUG2(ql4_printk(KERN_INFO, ha, 1525 "Match found in fwdb sessions\n")); 1526 return QLA_SUCCESS; 1527 } 1528 1529 static struct iscsi_cls_session * 1530 qla4xxx_session_create(struct iscsi_endpoint *ep, 1531 uint16_t cmds_max, uint16_t qdepth, 1532 uint32_t initial_cmdsn) 1533 { 1534 struct iscsi_cls_session *cls_sess; 1535 struct scsi_qla_host *ha; 1536 struct qla_endpoint *qla_ep; 1537 struct ddb_entry *ddb_entry; 1538 uint16_t ddb_index; 1539 struct iscsi_session *sess; 1540 struct sockaddr *dst_addr; 1541 int ret; 1542 1543 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1544 if (!ep) { 1545 printk(KERN_ERR "qla4xxx: missing ep.\n"); 1546 return NULL; 1547 } 1548 1549 qla_ep = ep->dd_data; 1550 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1551 ha = to_qla_host(qla_ep->host); 1552 1553 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 1554 if (ret == QLA_ERROR) 1555 return NULL; 1556 1557 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 1558 cmds_max, sizeof(struct ddb_entry), 1559 sizeof(struct ql4_task_data), 1560 initial_cmdsn, ddb_index); 1561 if (!cls_sess) 1562 return NULL; 1563 1564 sess = cls_sess->dd_data; 1565 ddb_entry = sess->dd_data; 1566 ddb_entry->fw_ddb_index = ddb_index; 1567 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 1568 ddb_entry->ha = ha; 1569 ddb_entry->sess = cls_sess; 1570 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 1571 ddb_entry->ddb_change = qla4xxx_ddb_change; 1572 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 1573 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1574 ha->tot_ddbs++; 1575 1576 return cls_sess; 1577 } 1578 1579 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 1580 { 1581 struct iscsi_session *sess; 1582 struct ddb_entry *ddb_entry; 1583 struct scsi_qla_host *ha; 1584 unsigned long flags, wtime; 1585 struct dev_db_entry *fw_ddb_entry = NULL; 1586 dma_addr_t fw_ddb_entry_dma; 1587 uint32_t ddb_state; 1588 int ret; 1589 1590 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1591 sess = cls_sess->dd_data; 1592 ddb_entry = sess->dd_data; 1593 ha = ddb_entry->ha; 1594 1595 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1596 &fw_ddb_entry_dma, GFP_KERNEL); 1597 if (!fw_ddb_entry) { 1598 ql4_printk(KERN_ERR, ha, 1599 "%s: Unable to allocate dma buffer\n", __func__); 1600 goto destroy_session; 1601 } 1602 1603 wtime = jiffies + (HZ * LOGOUT_TOV); 1604 do { 1605 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 1606 fw_ddb_entry, fw_ddb_entry_dma, 1607 NULL, NULL, &ddb_state, NULL, 1608 NULL, NULL); 1609 if (ret == QLA_ERROR) 1610 goto destroy_session; 1611 1612 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 1613 (ddb_state == DDB_DS_SESSION_FAILED)) 1614 goto destroy_session; 1615 1616 schedule_timeout_uninterruptible(HZ); 1617 } while ((time_after(wtime, jiffies))); 1618 1619 destroy_session: 1620 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 1621 1622 spin_lock_irqsave(&ha->hardware_lock, flags); 1623 qla4xxx_free_ddb(ha, ddb_entry); 1624 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1625 1626 iscsi_session_teardown(cls_sess); 1627 1628 if (fw_ddb_entry) 1629 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1630 fw_ddb_entry, fw_ddb_entry_dma); 1631 } 1632 1633 static struct iscsi_cls_conn * 1634 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 1635 { 1636 struct iscsi_cls_conn *cls_conn; 1637 struct iscsi_session *sess; 1638 struct ddb_entry *ddb_entry; 1639 1640 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1641 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 1642 conn_idx); 1643 if (!cls_conn) 1644 return NULL; 1645 1646 sess = cls_sess->dd_data; 1647 ddb_entry = sess->dd_data; 1648 ddb_entry->conn = cls_conn; 1649 1650 return cls_conn; 1651 } 1652 1653 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 1654 struct iscsi_cls_conn *cls_conn, 1655 uint64_t transport_fd, int is_leading) 1656 { 1657 struct iscsi_conn *conn; 1658 struct qla_conn *qla_conn; 1659 struct iscsi_endpoint *ep; 1660 1661 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1662 1663 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 1664 return -EINVAL; 1665 ep = iscsi_lookup_endpoint(transport_fd); 1666 conn = cls_conn->dd_data; 1667 qla_conn = conn->dd_data; 1668 qla_conn->qla_ep = ep->dd_data; 1669 return 0; 1670 } 1671 1672 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 1673 { 1674 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1675 struct iscsi_session *sess; 1676 struct ddb_entry *ddb_entry; 1677 struct scsi_qla_host *ha; 1678 struct dev_db_entry *fw_ddb_entry = NULL; 1679 dma_addr_t fw_ddb_entry_dma; 1680 uint32_t mbx_sts = 0; 1681 int ret = 0; 1682 int status = QLA_SUCCESS; 1683 1684 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1685 sess = cls_sess->dd_data; 1686 ddb_entry = sess->dd_data; 1687 ha = ddb_entry->ha; 1688 1689 /* Check if we have matching FW DDB, if yes then do not 1690 * login to this target. This could cause target to logout previous 1691 * connection 1692 */ 1693 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 1694 if (ret == QLA_SUCCESS) { 1695 ql4_printk(KERN_INFO, ha, 1696 "Session already exist in FW.\n"); 1697 ret = -EEXIST; 1698 goto exit_conn_start; 1699 } 1700 1701 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1702 &fw_ddb_entry_dma, GFP_KERNEL); 1703 if (!fw_ddb_entry) { 1704 ql4_printk(KERN_ERR, ha, 1705 "%s: Unable to allocate dma buffer\n", __func__); 1706 ret = -ENOMEM; 1707 goto exit_conn_start; 1708 } 1709 1710 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 1711 if (ret) { 1712 /* If iscsid is stopped and started then no need to do 1713 * set param again since ddb state will be already 1714 * active and FW does not allow set ddb to an 1715 * active session. 1716 */ 1717 if (mbx_sts) 1718 if (ddb_entry->fw_ddb_device_state == 1719 DDB_DS_SESSION_ACTIVE) { 1720 ddb_entry->unblock_sess(ddb_entry->sess); 1721 goto exit_set_param; 1722 } 1723 1724 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 1725 __func__, ddb_entry->fw_ddb_index); 1726 goto exit_conn_start; 1727 } 1728 1729 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1730 if (status == QLA_ERROR) { 1731 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 1732 sess->targetname); 1733 ret = -EINVAL; 1734 goto exit_conn_start; 1735 } 1736 1737 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 1738 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1739 1740 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 1741 ddb_entry->fw_ddb_device_state)); 1742 1743 exit_set_param: 1744 ret = 0; 1745 1746 exit_conn_start: 1747 if (fw_ddb_entry) 1748 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1749 fw_ddb_entry, fw_ddb_entry_dma); 1750 return ret; 1751 } 1752 1753 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 1754 { 1755 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1756 struct iscsi_session *sess; 1757 struct scsi_qla_host *ha; 1758 struct ddb_entry *ddb_entry; 1759 int options; 1760 1761 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1762 sess = cls_sess->dd_data; 1763 ddb_entry = sess->dd_data; 1764 ha = ddb_entry->ha; 1765 1766 options = LOGOUT_OPTION_CLOSE_SESSION; 1767 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 1768 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 1769 } 1770 1771 static void qla4xxx_task_work(struct work_struct *wdata) 1772 { 1773 struct ql4_task_data *task_data; 1774 struct scsi_qla_host *ha; 1775 struct passthru_status *sts; 1776 struct iscsi_task *task; 1777 struct iscsi_hdr *hdr; 1778 uint8_t *data; 1779 uint32_t data_len; 1780 struct iscsi_conn *conn; 1781 int hdr_len; 1782 itt_t itt; 1783 1784 task_data = container_of(wdata, struct ql4_task_data, task_work); 1785 ha = task_data->ha; 1786 task = task_data->task; 1787 sts = &task_data->sts; 1788 hdr_len = sizeof(struct iscsi_hdr); 1789 1790 DEBUG3(printk(KERN_INFO "Status returned\n")); 1791 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 1792 DEBUG3(printk(KERN_INFO "Response buffer")); 1793 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 1794 1795 conn = task->conn; 1796 1797 switch (sts->completionStatus) { 1798 case PASSTHRU_STATUS_COMPLETE: 1799 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 1800 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 1801 itt = sts->handle; 1802 hdr->itt = itt; 1803 data = task_data->resp_buffer + hdr_len; 1804 data_len = task_data->resp_len - hdr_len; 1805 iscsi_complete_pdu(conn, hdr, data, data_len); 1806 break; 1807 default: 1808 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 1809 sts->completionStatus); 1810 break; 1811 } 1812 return; 1813 } 1814 1815 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 1816 { 1817 struct ql4_task_data *task_data; 1818 struct iscsi_session *sess; 1819 struct ddb_entry *ddb_entry; 1820 struct scsi_qla_host *ha; 1821 int hdr_len; 1822 1823 sess = task->conn->session; 1824 ddb_entry = sess->dd_data; 1825 ha = ddb_entry->ha; 1826 task_data = task->dd_data; 1827 memset(task_data, 0, sizeof(struct ql4_task_data)); 1828 1829 if (task->sc) { 1830 ql4_printk(KERN_INFO, ha, 1831 "%s: SCSI Commands not implemented\n", __func__); 1832 return -EINVAL; 1833 } 1834 1835 hdr_len = sizeof(struct iscsi_hdr); 1836 task_data->ha = ha; 1837 task_data->task = task; 1838 1839 if (task->data_count) { 1840 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 1841 task->data_count, 1842 PCI_DMA_TODEVICE); 1843 } 1844 1845 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1846 __func__, task->conn->max_recv_dlength, hdr_len)); 1847 1848 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 1849 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 1850 task_data->resp_len, 1851 &task_data->resp_dma, 1852 GFP_ATOMIC); 1853 if (!task_data->resp_buffer) 1854 goto exit_alloc_pdu; 1855 1856 task_data->req_len = task->data_count + hdr_len; 1857 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 1858 task_data->req_len, 1859 &task_data->req_dma, 1860 GFP_ATOMIC); 1861 if (!task_data->req_buffer) 1862 goto exit_alloc_pdu; 1863 1864 task->hdr = task_data->req_buffer; 1865 1866 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 1867 1868 return 0; 1869 1870 exit_alloc_pdu: 1871 if (task_data->resp_buffer) 1872 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1873 task_data->resp_buffer, task_data->resp_dma); 1874 1875 if (task_data->req_buffer) 1876 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1877 task_data->req_buffer, task_data->req_dma); 1878 return -ENOMEM; 1879 } 1880 1881 static void qla4xxx_task_cleanup(struct iscsi_task *task) 1882 { 1883 struct ql4_task_data *task_data; 1884 struct iscsi_session *sess; 1885 struct ddb_entry *ddb_entry; 1886 struct scsi_qla_host *ha; 1887 int hdr_len; 1888 1889 hdr_len = sizeof(struct iscsi_hdr); 1890 sess = task->conn->session; 1891 ddb_entry = sess->dd_data; 1892 ha = ddb_entry->ha; 1893 task_data = task->dd_data; 1894 1895 if (task->data_count) { 1896 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 1897 task->data_count, PCI_DMA_TODEVICE); 1898 } 1899 1900 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1901 __func__, task->conn->max_recv_dlength, hdr_len)); 1902 1903 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1904 task_data->resp_buffer, task_data->resp_dma); 1905 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1906 task_data->req_buffer, task_data->req_dma); 1907 return; 1908 } 1909 1910 static int qla4xxx_task_xmit(struct iscsi_task *task) 1911 { 1912 struct scsi_cmnd *sc = task->sc; 1913 struct iscsi_session *sess = task->conn->session; 1914 struct ddb_entry *ddb_entry = sess->dd_data; 1915 struct scsi_qla_host *ha = ddb_entry->ha; 1916 1917 if (!sc) 1918 return qla4xxx_send_passthru0(task); 1919 1920 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 1921 __func__); 1922 return -ENOSYS; 1923 } 1924 1925 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 1926 struct dev_db_entry *fw_ddb_entry, 1927 struct iscsi_cls_session *cls_sess, 1928 struct iscsi_cls_conn *cls_conn) 1929 { 1930 int buflen = 0; 1931 struct iscsi_session *sess; 1932 struct ddb_entry *ddb_entry; 1933 struct iscsi_conn *conn; 1934 char ip_addr[DDB_IPADDR_LEN]; 1935 uint16_t options = 0; 1936 1937 sess = cls_sess->dd_data; 1938 ddb_entry = sess->dd_data; 1939 conn = cls_conn->dd_data; 1940 1941 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 1942 1943 conn->max_recv_dlength = BYTE_UNITS * 1944 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 1945 1946 conn->max_xmit_dlength = BYTE_UNITS * 1947 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 1948 1949 sess->initial_r2t_en = 1950 (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1951 1952 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 1953 1954 sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1955 1956 sess->first_burst = BYTE_UNITS * 1957 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 1958 1959 sess->max_burst = BYTE_UNITS * 1960 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 1961 1962 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 1963 1964 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 1965 1966 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 1967 1968 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 1969 1970 options = le16_to_cpu(fw_ddb_entry->options); 1971 if (options & DDB_OPT_IPV6_DEVICE) 1972 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 1973 else 1974 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 1975 1976 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 1977 (char *)fw_ddb_entry->iscsi_name, buflen); 1978 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 1979 (char *)ha->name_string, buflen); 1980 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 1981 (char *)ip_addr, buflen); 1982 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS, 1983 (char *)fw_ddb_entry->iscsi_alias, buflen); 1984 } 1985 1986 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 1987 struct ddb_entry *ddb_entry) 1988 { 1989 struct iscsi_cls_session *cls_sess; 1990 struct iscsi_cls_conn *cls_conn; 1991 uint32_t ddb_state; 1992 dma_addr_t fw_ddb_entry_dma; 1993 struct dev_db_entry *fw_ddb_entry; 1994 1995 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1996 &fw_ddb_entry_dma, GFP_KERNEL); 1997 if (!fw_ddb_entry) { 1998 ql4_printk(KERN_ERR, ha, 1999 "%s: Unable to allocate dma buffer\n", __func__); 2000 goto exit_session_conn_fwddb_param; 2001 } 2002 2003 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 2004 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 2005 NULL, NULL, NULL) == QLA_ERROR) { 2006 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 2007 "get_ddb_entry for fw_ddb_index %d\n", 2008 ha->host_no, __func__, 2009 ddb_entry->fw_ddb_index)); 2010 goto exit_session_conn_fwddb_param; 2011 } 2012 2013 cls_sess = ddb_entry->sess; 2014 2015 cls_conn = ddb_entry->conn; 2016 2017 /* Update params */ 2018 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 2019 2020 exit_session_conn_fwddb_param: 2021 if (fw_ddb_entry) 2022 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 2023 fw_ddb_entry, fw_ddb_entry_dma); 2024 } 2025 2026 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 2027 struct ddb_entry *ddb_entry) 2028 { 2029 struct iscsi_cls_session *cls_sess; 2030 struct iscsi_cls_conn *cls_conn; 2031 struct iscsi_session *sess; 2032 struct iscsi_conn *conn; 2033 uint32_t ddb_state; 2034 dma_addr_t fw_ddb_entry_dma; 2035 struct dev_db_entry *fw_ddb_entry; 2036 2037 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 2038 &fw_ddb_entry_dma, GFP_KERNEL); 2039 if (!fw_ddb_entry) { 2040 ql4_printk(KERN_ERR, ha, 2041 "%s: Unable to allocate dma buffer\n", __func__); 2042 goto exit_session_conn_param; 2043 } 2044 2045 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 2046 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 2047 NULL, NULL, NULL) == QLA_ERROR) { 2048 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 2049 "get_ddb_entry for fw_ddb_index %d\n", 2050 ha->host_no, __func__, 2051 ddb_entry->fw_ddb_index)); 2052 goto exit_session_conn_param; 2053 } 2054 2055 cls_sess = ddb_entry->sess; 2056 sess = cls_sess->dd_data; 2057 2058 cls_conn = ddb_entry->conn; 2059 conn = cls_conn->dd_data; 2060 2061 /* Update timers after login */ 2062 ddb_entry->default_relogin_timeout = 2063 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 2064 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 2065 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 2066 ddb_entry->default_time2wait = 2067 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 2068 2069 /* Update params */ 2070 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 2071 conn->max_recv_dlength = BYTE_UNITS * 2072 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 2073 2074 conn->max_xmit_dlength = BYTE_UNITS * 2075 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 2076 2077 sess->initial_r2t_en = 2078 (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 2079 2080 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 2081 2082 sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 2083 2084 sess->first_burst = BYTE_UNITS * 2085 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 2086 2087 sess->max_burst = BYTE_UNITS * 2088 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 2089 2090 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 2091 2092 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 2093 2094 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 2095 2096 memcpy(sess->initiatorname, ha->name_string, 2097 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 2098 2099 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS, 2100 (char *)fw_ddb_entry->iscsi_alias, 0); 2101 2102 exit_session_conn_param: 2103 if (fw_ddb_entry) 2104 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 2105 fw_ddb_entry, fw_ddb_entry_dma); 2106 } 2107 2108 /* 2109 * Timer routines 2110 */ 2111 2112 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 2113 unsigned long interval) 2114 { 2115 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 2116 __func__, ha->host->host_no)); 2117 init_timer(&ha->timer); 2118 ha->timer.expires = jiffies + interval * HZ; 2119 ha->timer.data = (unsigned long)ha; 2120 ha->timer.function = (void (*)(unsigned long))func; 2121 add_timer(&ha->timer); 2122 ha->timer_active = 1; 2123 } 2124 2125 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 2126 { 2127 del_timer_sync(&ha->timer); 2128 ha->timer_active = 0; 2129 } 2130 2131 /*** 2132 * qla4xxx_mark_device_missing - blocks the session 2133 * @cls_session: Pointer to the session to be blocked 2134 * @ddb_entry: Pointer to device database entry 2135 * 2136 * This routine marks a device missing and close connection. 2137 **/ 2138 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 2139 { 2140 iscsi_block_session(cls_session); 2141 } 2142 2143 /** 2144 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 2145 * @ha: Pointer to host adapter structure. 2146 * 2147 * This routine marks a device missing and resets the relogin retry count. 2148 **/ 2149 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 2150 { 2151 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 2152 } 2153 2154 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 2155 struct ddb_entry *ddb_entry, 2156 struct scsi_cmnd *cmd) 2157 { 2158 struct srb *srb; 2159 2160 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 2161 if (!srb) 2162 return srb; 2163 2164 kref_init(&srb->srb_ref); 2165 srb->ha = ha; 2166 srb->ddb = ddb_entry; 2167 srb->cmd = cmd; 2168 srb->flags = 0; 2169 CMD_SP(cmd) = (void *)srb; 2170 2171 return srb; 2172 } 2173 2174 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 2175 { 2176 struct scsi_cmnd *cmd = srb->cmd; 2177 2178 if (srb->flags & SRB_DMA_VALID) { 2179 scsi_dma_unmap(cmd); 2180 srb->flags &= ~SRB_DMA_VALID; 2181 } 2182 CMD_SP(cmd) = NULL; 2183 } 2184 2185 void qla4xxx_srb_compl(struct kref *ref) 2186 { 2187 struct srb *srb = container_of(ref, struct srb, srb_ref); 2188 struct scsi_cmnd *cmd = srb->cmd; 2189 struct scsi_qla_host *ha = srb->ha; 2190 2191 qla4xxx_srb_free_dma(ha, srb); 2192 2193 mempool_free(srb, ha->srb_mempool); 2194 2195 cmd->scsi_done(cmd); 2196 } 2197 2198 /** 2199 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 2200 * @host: scsi host 2201 * @cmd: Pointer to Linux's SCSI command structure 2202 * 2203 * Remarks: 2204 * This routine is invoked by Linux to send a SCSI command to the driver. 2205 * The mid-level driver tries to ensure that queuecommand never gets 2206 * invoked concurrently with itself or the interrupt handler (although 2207 * the interrupt handler may call this routine as part of request- 2208 * completion handling). Unfortunely, it sometimes calls the scheduler 2209 * in interrupt context which is a big NO! NO!. 2210 **/ 2211 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 2212 { 2213 struct scsi_qla_host *ha = to_qla_host(host); 2214 struct ddb_entry *ddb_entry = cmd->device->hostdata; 2215 struct iscsi_cls_session *sess = ddb_entry->sess; 2216 struct srb *srb; 2217 int rval; 2218 2219 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 2220 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 2221 cmd->result = DID_NO_CONNECT << 16; 2222 else 2223 cmd->result = DID_REQUEUE << 16; 2224 goto qc_fail_command; 2225 } 2226 2227 if (!sess) { 2228 cmd->result = DID_IMM_RETRY << 16; 2229 goto qc_fail_command; 2230 } 2231 2232 rval = iscsi_session_chkready(sess); 2233 if (rval) { 2234 cmd->result = rval; 2235 goto qc_fail_command; 2236 } 2237 2238 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2239 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2240 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2241 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2242 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 2243 !test_bit(AF_ONLINE, &ha->flags) || 2244 !test_bit(AF_LINK_UP, &ha->flags) || 2245 test_bit(AF_LOOPBACK, &ha->flags) || 2246 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 2247 goto qc_host_busy; 2248 2249 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 2250 if (!srb) 2251 goto qc_host_busy; 2252 2253 rval = qla4xxx_send_command_to_isp(ha, srb); 2254 if (rval != QLA_SUCCESS) 2255 goto qc_host_busy_free_sp; 2256 2257 return 0; 2258 2259 qc_host_busy_free_sp: 2260 qla4xxx_srb_free_dma(ha, srb); 2261 mempool_free(srb, ha->srb_mempool); 2262 2263 qc_host_busy: 2264 return SCSI_MLQUEUE_HOST_BUSY; 2265 2266 qc_fail_command: 2267 cmd->scsi_done(cmd); 2268 2269 return 0; 2270 } 2271 2272 /** 2273 * qla4xxx_mem_free - frees memory allocated to adapter 2274 * @ha: Pointer to host adapter structure. 2275 * 2276 * Frees memory previously allocated by qla4xxx_mem_alloc 2277 **/ 2278 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 2279 { 2280 if (ha->queues) 2281 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 2282 ha->queues_dma); 2283 2284 if (ha->fw_dump) 2285 vfree(ha->fw_dump); 2286 2287 ha->queues_len = 0; 2288 ha->queues = NULL; 2289 ha->queues_dma = 0; 2290 ha->request_ring = NULL; 2291 ha->request_dma = 0; 2292 ha->response_ring = NULL; 2293 ha->response_dma = 0; 2294 ha->shadow_regs = NULL; 2295 ha->shadow_regs_dma = 0; 2296 ha->fw_dump = NULL; 2297 ha->fw_dump_size = 0; 2298 2299 /* Free srb pool. */ 2300 if (ha->srb_mempool) 2301 mempool_destroy(ha->srb_mempool); 2302 2303 ha->srb_mempool = NULL; 2304 2305 if (ha->chap_dma_pool) 2306 dma_pool_destroy(ha->chap_dma_pool); 2307 2308 if (ha->chap_list) 2309 vfree(ha->chap_list); 2310 ha->chap_list = NULL; 2311 2312 if (ha->fw_ddb_dma_pool) 2313 dma_pool_destroy(ha->fw_ddb_dma_pool); 2314 2315 /* release io space registers */ 2316 if (is_qla8022(ha)) { 2317 if (ha->nx_pcibase) 2318 iounmap( 2319 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 2320 } else if (is_qla8032(ha)) { 2321 if (ha->nx_pcibase) 2322 iounmap( 2323 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 2324 } else if (ha->reg) { 2325 iounmap(ha->reg); 2326 } 2327 2328 if (ha->reset_tmplt.buff) 2329 vfree(ha->reset_tmplt.buff); 2330 2331 pci_release_regions(ha->pdev); 2332 } 2333 2334 /** 2335 * qla4xxx_mem_alloc - allocates memory for use by adapter. 2336 * @ha: Pointer to host adapter structure 2337 * 2338 * Allocates DMA memory for request and response queues. Also allocates memory 2339 * for srbs. 2340 **/ 2341 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 2342 { 2343 unsigned long align; 2344 2345 /* Allocate contiguous block of DMA memory for queues. */ 2346 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2347 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 2348 sizeof(struct shadow_regs) + 2349 MEM_ALIGN_VALUE + 2350 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 2351 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 2352 &ha->queues_dma, GFP_KERNEL); 2353 if (ha->queues == NULL) { 2354 ql4_printk(KERN_WARNING, ha, 2355 "Memory Allocation failed - queues.\n"); 2356 2357 goto mem_alloc_error_exit; 2358 } 2359 memset(ha->queues, 0, ha->queues_len); 2360 2361 /* 2362 * As per RISC alignment requirements -- the bus-address must be a 2363 * multiple of the request-ring size (in bytes). 2364 */ 2365 align = 0; 2366 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 2367 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 2368 (MEM_ALIGN_VALUE - 1)); 2369 2370 /* Update request and response queue pointers. */ 2371 ha->request_dma = ha->queues_dma + align; 2372 ha->request_ring = (struct queue_entry *) (ha->queues + align); 2373 ha->response_dma = ha->queues_dma + align + 2374 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 2375 ha->response_ring = (struct queue_entry *) (ha->queues + align + 2376 (REQUEST_QUEUE_DEPTH * 2377 QUEUE_SIZE)); 2378 ha->shadow_regs_dma = ha->queues_dma + align + 2379 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2380 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 2381 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 2382 (REQUEST_QUEUE_DEPTH * 2383 QUEUE_SIZE) + 2384 (RESPONSE_QUEUE_DEPTH * 2385 QUEUE_SIZE)); 2386 2387 /* Allocate memory for srb pool. */ 2388 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 2389 mempool_free_slab, srb_cachep); 2390 if (ha->srb_mempool == NULL) { 2391 ql4_printk(KERN_WARNING, ha, 2392 "Memory Allocation failed - SRB Pool.\n"); 2393 2394 goto mem_alloc_error_exit; 2395 } 2396 2397 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 2398 CHAP_DMA_BLOCK_SIZE, 8, 0); 2399 2400 if (ha->chap_dma_pool == NULL) { 2401 ql4_printk(KERN_WARNING, ha, 2402 "%s: chap_dma_pool allocation failed..\n", __func__); 2403 goto mem_alloc_error_exit; 2404 } 2405 2406 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 2407 DDB_DMA_BLOCK_SIZE, 8, 0); 2408 2409 if (ha->fw_ddb_dma_pool == NULL) { 2410 ql4_printk(KERN_WARNING, ha, 2411 "%s: fw_ddb_dma_pool allocation failed..\n", 2412 __func__); 2413 goto mem_alloc_error_exit; 2414 } 2415 2416 return QLA_SUCCESS; 2417 2418 mem_alloc_error_exit: 2419 qla4xxx_mem_free(ha); 2420 return QLA_ERROR; 2421 } 2422 2423 /** 2424 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 2425 * @ha: adapter block pointer. 2426 * 2427 * Note: The caller should not hold the idc lock. 2428 **/ 2429 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 2430 { 2431 uint32_t temp, temp_state, temp_val; 2432 int status = QLA_SUCCESS; 2433 2434 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 2435 2436 temp_state = qla82xx_get_temp_state(temp); 2437 temp_val = qla82xx_get_temp_val(temp); 2438 2439 if (temp_state == QLA82XX_TEMP_PANIC) { 2440 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 2441 " exceeds maximum allowed. Hardware has been shut" 2442 " down.\n", temp_val); 2443 status = QLA_ERROR; 2444 } else if (temp_state == QLA82XX_TEMP_WARN) { 2445 if (ha->temperature == QLA82XX_TEMP_NORMAL) 2446 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 2447 " degrees C exceeds operating range." 2448 " Immediate action needed.\n", temp_val); 2449 } else { 2450 if (ha->temperature == QLA82XX_TEMP_WARN) 2451 ql4_printk(KERN_INFO, ha, "Device temperature is" 2452 " now %d degrees C in normal range.\n", 2453 temp_val); 2454 } 2455 ha->temperature = temp_state; 2456 return status; 2457 } 2458 2459 /** 2460 * qla4_8xxx_check_fw_alive - Check firmware health 2461 * @ha: Pointer to host adapter structure. 2462 * 2463 * Context: Interrupt 2464 **/ 2465 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 2466 { 2467 uint32_t fw_heartbeat_counter; 2468 int status = QLA_SUCCESS; 2469 2470 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 2471 QLA8XXX_PEG_ALIVE_COUNTER); 2472 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 2473 if (fw_heartbeat_counter == 0xffffffff) { 2474 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 2475 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 2476 ha->host_no, __func__)); 2477 return status; 2478 } 2479 2480 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 2481 ha->seconds_since_last_heartbeat++; 2482 /* FW not alive after 2 seconds */ 2483 if (ha->seconds_since_last_heartbeat == 2) { 2484 ha->seconds_since_last_heartbeat = 0; 2485 qla4_8xxx_dump_peg_reg(ha); 2486 status = QLA_ERROR; 2487 } 2488 } else 2489 ha->seconds_since_last_heartbeat = 0; 2490 2491 ha->fw_heartbeat_counter = fw_heartbeat_counter; 2492 return status; 2493 } 2494 2495 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 2496 { 2497 uint32_t halt_status; 2498 int halt_status_unrecoverable = 0; 2499 2500 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 2501 2502 if (is_qla8022(ha)) { 2503 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 2504 __func__); 2505 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2506 CRB_NIU_XG_PAUSE_CTL_P0 | 2507 CRB_NIU_XG_PAUSE_CTL_P1); 2508 2509 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 2510 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 2511 __func__); 2512 if (halt_status & HALT_STATUS_UNRECOVERABLE) 2513 halt_status_unrecoverable = 1; 2514 } else if (is_qla8032(ha)) { 2515 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 2516 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 2517 __func__); 2518 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 2519 halt_status_unrecoverable = 1; 2520 } 2521 2522 /* 2523 * Since we cannot change dev_state in interrupt context, 2524 * set appropriate DPC flag then wakeup DPC 2525 */ 2526 if (halt_status_unrecoverable) { 2527 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 2528 } else { 2529 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 2530 __func__); 2531 set_bit(DPC_RESET_HA, &ha->dpc_flags); 2532 } 2533 qla4xxx_mailbox_premature_completion(ha); 2534 qla4xxx_wake_dpc(ha); 2535 } 2536 2537 /** 2538 * qla4_8xxx_watchdog - Poll dev state 2539 * @ha: Pointer to host adapter structure. 2540 * 2541 * Context: Interrupt 2542 **/ 2543 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 2544 { 2545 uint32_t dev_state; 2546 2547 /* don't poll if reset is going on */ 2548 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2549 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2550 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 2551 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 2552 2553 if (qla4_8xxx_check_temp(ha)) { 2554 if (is_qla8022(ha)) { 2555 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 2556 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2557 CRB_NIU_XG_PAUSE_CTL_P0 | 2558 CRB_NIU_XG_PAUSE_CTL_P1); 2559 } 2560 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 2561 qla4xxx_wake_dpc(ha); 2562 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 2563 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 2564 if (is_qla8032(ha) || 2565 (is_qla8022(ha) && !ql4xdontresethba)) { 2566 ql4_printk(KERN_INFO, ha, "%s: HW State: " 2567 "NEED RESET!\n", __func__); 2568 set_bit(DPC_RESET_HA, &ha->dpc_flags); 2569 qla4xxx_wake_dpc(ha); 2570 } 2571 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 2572 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 2573 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 2574 __func__); 2575 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 2576 qla4xxx_wake_dpc(ha); 2577 } else { 2578 /* Check firmware health */ 2579 if (qla4_8xxx_check_fw_alive(ha)) 2580 qla4_8xxx_process_fw_error(ha); 2581 } 2582 } 2583 } 2584 2585 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 2586 { 2587 struct iscsi_session *sess; 2588 struct ddb_entry *ddb_entry; 2589 struct scsi_qla_host *ha; 2590 2591 sess = cls_sess->dd_data; 2592 ddb_entry = sess->dd_data; 2593 ha = ddb_entry->ha; 2594 2595 if (!(ddb_entry->ddb_type == FLASH_DDB)) 2596 return; 2597 2598 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 2599 !iscsi_is_session_online(cls_sess)) { 2600 if (atomic_read(&ddb_entry->retry_relogin_timer) != 2601 INVALID_ENTRY) { 2602 if (atomic_read(&ddb_entry->retry_relogin_timer) == 2603 0) { 2604 atomic_set(&ddb_entry->retry_relogin_timer, 2605 INVALID_ENTRY); 2606 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 2607 set_bit(DF_RELOGIN, &ddb_entry->flags); 2608 DEBUG2(ql4_printk(KERN_INFO, ha, 2609 "%s: index [%d] login device\n", 2610 __func__, ddb_entry->fw_ddb_index)); 2611 } else 2612 atomic_dec(&ddb_entry->retry_relogin_timer); 2613 } 2614 } 2615 2616 /* Wait for relogin to timeout */ 2617 if (atomic_read(&ddb_entry->relogin_timer) && 2618 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 2619 /* 2620 * If the relogin times out and the device is 2621 * still NOT ONLINE then try and relogin again. 2622 */ 2623 if (!iscsi_is_session_online(cls_sess)) { 2624 /* Reset retry relogin timer */ 2625 atomic_inc(&ddb_entry->relogin_retry_count); 2626 DEBUG2(ql4_printk(KERN_INFO, ha, 2627 "%s: index[%d] relogin timed out-retrying" 2628 " relogin (%d), retry (%d)\n", __func__, 2629 ddb_entry->fw_ddb_index, 2630 atomic_read(&ddb_entry->relogin_retry_count), 2631 ddb_entry->default_time2wait + 4)); 2632 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 2633 atomic_set(&ddb_entry->retry_relogin_timer, 2634 ddb_entry->default_time2wait + 4); 2635 } 2636 } 2637 } 2638 2639 /** 2640 * qla4xxx_timer - checks every second for work to do. 2641 * @ha: Pointer to host adapter structure. 2642 **/ 2643 static void qla4xxx_timer(struct scsi_qla_host *ha) 2644 { 2645 int start_dpc = 0; 2646 uint16_t w; 2647 2648 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 2649 2650 /* If we are in the middle of AER/EEH processing 2651 * skip any processing and reschedule the timer 2652 */ 2653 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 2654 mod_timer(&ha->timer, jiffies + HZ); 2655 return; 2656 } 2657 2658 /* Hardware read to trigger an EEH error during mailbox waits. */ 2659 if (!pci_channel_offline(ha->pdev)) 2660 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 2661 2662 if (is_qla80XX(ha)) 2663 qla4_8xxx_watchdog(ha); 2664 2665 if (is_qla40XX(ha)) { 2666 /* Check for heartbeat interval. */ 2667 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 2668 ha->heartbeat_interval != 0) { 2669 ha->seconds_since_last_heartbeat++; 2670 if (ha->seconds_since_last_heartbeat > 2671 ha->heartbeat_interval + 2) 2672 set_bit(DPC_RESET_HA, &ha->dpc_flags); 2673 } 2674 } 2675 2676 /* Process any deferred work. */ 2677 if (!list_empty(&ha->work_list)) 2678 start_dpc++; 2679 2680 /* Wakeup the dpc routine for this adapter, if needed. */ 2681 if (start_dpc || 2682 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2683 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 2684 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 2685 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2686 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2687 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 2688 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 2689 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2690 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 2691 test_bit(DPC_AEN, &ha->dpc_flags)) { 2692 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 2693 " - dpc flags = 0x%lx\n", 2694 ha->host_no, __func__, ha->dpc_flags)); 2695 qla4xxx_wake_dpc(ha); 2696 } 2697 2698 /* Reschedule timer thread to call us back in one second */ 2699 mod_timer(&ha->timer, jiffies + HZ); 2700 2701 DEBUG2(ha->seconds_since_last_intr++); 2702 } 2703 2704 /** 2705 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 2706 * @ha: Pointer to host adapter structure. 2707 * 2708 * This routine stalls the driver until all outstanding commands are returned. 2709 * Caller must release the Hardware Lock prior to calling this routine. 2710 **/ 2711 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 2712 { 2713 uint32_t index = 0; 2714 unsigned long flags; 2715 struct scsi_cmnd *cmd; 2716 2717 unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 2718 2719 DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 2720 "complete\n", WAIT_CMD_TOV)); 2721 2722 while (!time_after_eq(jiffies, wtime)) { 2723 spin_lock_irqsave(&ha->hardware_lock, flags); 2724 /* Find a command that hasn't completed. */ 2725 for (index = 0; index < ha->host->can_queue; index++) { 2726 cmd = scsi_host_find_tag(ha->host, index); 2727 /* 2728 * We cannot just check if the index is valid, 2729 * becase if we are run from the scsi eh, then 2730 * the scsi/block layer is going to prevent 2731 * the tag from being released. 2732 */ 2733 if (cmd != NULL && CMD_SP(cmd)) 2734 break; 2735 } 2736 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2737 2738 /* If No Commands are pending, wait is complete */ 2739 if (index == ha->host->can_queue) 2740 return QLA_SUCCESS; 2741 2742 msleep(1000); 2743 } 2744 /* If we timed out on waiting for commands to come back 2745 * return ERROR. */ 2746 return QLA_ERROR; 2747 } 2748 2749 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 2750 { 2751 uint32_t ctrl_status; 2752 unsigned long flags = 0; 2753 2754 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 2755 2756 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 2757 return QLA_ERROR; 2758 2759 spin_lock_irqsave(&ha->hardware_lock, flags); 2760 2761 /* 2762 * If the SCSI Reset Interrupt bit is set, clear it. 2763 * Otherwise, the Soft Reset won't work. 2764 */ 2765 ctrl_status = readw(&ha->reg->ctrl_status); 2766 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 2767 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2768 2769 /* Issue Soft Reset */ 2770 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 2771 readl(&ha->reg->ctrl_status); 2772 2773 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2774 return QLA_SUCCESS; 2775 } 2776 2777 /** 2778 * qla4xxx_soft_reset - performs soft reset. 2779 * @ha: Pointer to host adapter structure. 2780 **/ 2781 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 2782 { 2783 uint32_t max_wait_time; 2784 unsigned long flags = 0; 2785 int status; 2786 uint32_t ctrl_status; 2787 2788 status = qla4xxx_hw_reset(ha); 2789 if (status != QLA_SUCCESS) 2790 return status; 2791 2792 status = QLA_ERROR; 2793 /* Wait until the Network Reset Intr bit is cleared */ 2794 max_wait_time = RESET_INTR_TOV; 2795 do { 2796 spin_lock_irqsave(&ha->hardware_lock, flags); 2797 ctrl_status = readw(&ha->reg->ctrl_status); 2798 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2799 2800 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 2801 break; 2802 2803 msleep(1000); 2804 } while ((--max_wait_time)); 2805 2806 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 2807 DEBUG2(printk(KERN_WARNING 2808 "scsi%ld: Network Reset Intr not cleared by " 2809 "Network function, clearing it now!\n", 2810 ha->host_no)); 2811 spin_lock_irqsave(&ha->hardware_lock, flags); 2812 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 2813 readl(&ha->reg->ctrl_status); 2814 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2815 } 2816 2817 /* Wait until the firmware tells us the Soft Reset is done */ 2818 max_wait_time = SOFT_RESET_TOV; 2819 do { 2820 spin_lock_irqsave(&ha->hardware_lock, flags); 2821 ctrl_status = readw(&ha->reg->ctrl_status); 2822 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2823 2824 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 2825 status = QLA_SUCCESS; 2826 break; 2827 } 2828 2829 msleep(1000); 2830 } while ((--max_wait_time)); 2831 2832 /* 2833 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 2834 * after the soft reset has taken place. 2835 */ 2836 spin_lock_irqsave(&ha->hardware_lock, flags); 2837 ctrl_status = readw(&ha->reg->ctrl_status); 2838 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 2839 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2840 readl(&ha->reg->ctrl_status); 2841 } 2842 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2843 2844 /* If soft reset fails then most probably the bios on other 2845 * function is also enabled. 2846 * Since the initialization is sequential the other fn 2847 * wont be able to acknowledge the soft reset. 2848 * Issue a force soft reset to workaround this scenario. 2849 */ 2850 if (max_wait_time == 0) { 2851 /* Issue Force Soft Reset */ 2852 spin_lock_irqsave(&ha->hardware_lock, flags); 2853 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 2854 readl(&ha->reg->ctrl_status); 2855 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2856 /* Wait until the firmware tells us the Soft Reset is done */ 2857 max_wait_time = SOFT_RESET_TOV; 2858 do { 2859 spin_lock_irqsave(&ha->hardware_lock, flags); 2860 ctrl_status = readw(&ha->reg->ctrl_status); 2861 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2862 2863 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 2864 status = QLA_SUCCESS; 2865 break; 2866 } 2867 2868 msleep(1000); 2869 } while ((--max_wait_time)); 2870 } 2871 2872 return status; 2873 } 2874 2875 /** 2876 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 2877 * @ha: Pointer to host adapter structure. 2878 * @res: returned scsi status 2879 * 2880 * This routine is called just prior to a HARD RESET to return all 2881 * outstanding commands back to the Operating System. 2882 * Caller should make sure that the following locks are released 2883 * before this calling routine: Hardware lock, and io_request_lock. 2884 **/ 2885 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 2886 { 2887 struct srb *srb; 2888 int i; 2889 unsigned long flags; 2890 2891 spin_lock_irqsave(&ha->hardware_lock, flags); 2892 for (i = 0; i < ha->host->can_queue; i++) { 2893 srb = qla4xxx_del_from_active_array(ha, i); 2894 if (srb != NULL) { 2895 srb->cmd->result = res; 2896 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 2897 } 2898 } 2899 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2900 } 2901 2902 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 2903 { 2904 clear_bit(AF_ONLINE, &ha->flags); 2905 2906 /* Disable the board */ 2907 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 2908 2909 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2910 qla4xxx_mark_all_devices_missing(ha); 2911 clear_bit(AF_INIT_DONE, &ha->flags); 2912 } 2913 2914 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 2915 { 2916 struct iscsi_session *sess; 2917 struct ddb_entry *ddb_entry; 2918 2919 sess = cls_session->dd_data; 2920 ddb_entry = sess->dd_data; 2921 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 2922 2923 if (ddb_entry->ddb_type == FLASH_DDB) 2924 iscsi_block_session(ddb_entry->sess); 2925 else 2926 iscsi_session_failure(cls_session->dd_data, 2927 ISCSI_ERR_CONN_FAILED); 2928 } 2929 2930 /** 2931 * qla4xxx_recover_adapter - recovers adapter after a fatal error 2932 * @ha: Pointer to host adapter structure. 2933 **/ 2934 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 2935 { 2936 int status = QLA_ERROR; 2937 uint8_t reset_chip = 0; 2938 uint32_t dev_state; 2939 unsigned long wait; 2940 2941 /* Stall incoming I/O until we are done */ 2942 scsi_block_requests(ha->host); 2943 clear_bit(AF_ONLINE, &ha->flags); 2944 clear_bit(AF_LINK_UP, &ha->flags); 2945 2946 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 2947 2948 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2949 2950 if (is_qla8032(ha) && 2951 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2952 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 2953 __func__); 2954 /* disable pause frame for ISP83xx */ 2955 qla4_83xx_disable_pause(ha); 2956 } 2957 2958 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 2959 2960 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2961 reset_chip = 1; 2962 2963 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 2964 * do not reset adapter, jump to initialize_adapter */ 2965 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2966 status = QLA_SUCCESS; 2967 goto recover_ha_init_adapter; 2968 } 2969 2970 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 2971 * from eh_host_reset or ioctl module */ 2972 if (is_qla80XX(ha) && !reset_chip && 2973 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2974 2975 DEBUG2(ql4_printk(KERN_INFO, ha, 2976 "scsi%ld: %s - Performing stop_firmware...\n", 2977 ha->host_no, __func__)); 2978 status = ha->isp_ops->reset_firmware(ha); 2979 if (status == QLA_SUCCESS) { 2980 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2981 qla4xxx_cmd_wait(ha); 2982 2983 ha->isp_ops->disable_intrs(ha); 2984 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2985 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2986 } else { 2987 /* If the stop_firmware fails then 2988 * reset the entire chip */ 2989 reset_chip = 1; 2990 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2991 set_bit(DPC_RESET_HA, &ha->dpc_flags); 2992 } 2993 } 2994 2995 /* Issue full chip reset if recovering from a catastrophic error, 2996 * or if stop_firmware fails for ISP-8xxx. 2997 * This is the default case for ISP-4xxx */ 2998 if (is_qla40XX(ha) || reset_chip) { 2999 if (is_qla40XX(ha)) 3000 goto chip_reset; 3001 3002 /* Check if 8XXX firmware is alive or not 3003 * We may have arrived here from NEED_RESET 3004 * detection only */ 3005 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 3006 goto chip_reset; 3007 3008 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 3009 while (time_before(jiffies, wait)) { 3010 if (qla4_8xxx_check_fw_alive(ha)) { 3011 qla4xxx_mailbox_premature_completion(ha); 3012 break; 3013 } 3014 3015 set_current_state(TASK_UNINTERRUPTIBLE); 3016 schedule_timeout(HZ); 3017 } 3018 chip_reset: 3019 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 3020 qla4xxx_cmd_wait(ha); 3021 3022 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3023 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3024 DEBUG2(ql4_printk(KERN_INFO, ha, 3025 "scsi%ld: %s - Performing chip reset..\n", 3026 ha->host_no, __func__)); 3027 status = ha->isp_ops->reset_chip(ha); 3028 } 3029 3030 /* Flush any pending ddb changed AENs */ 3031 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3032 3033 recover_ha_init_adapter: 3034 /* Upon successful firmware/chip reset, re-initialize the adapter */ 3035 if (status == QLA_SUCCESS) { 3036 /* For ISP-4xxx, force function 1 to always initialize 3037 * before function 3 to prevent both funcions from 3038 * stepping on top of the other */ 3039 if (is_qla40XX(ha) && (ha->mac_index == 3)) 3040 ssleep(6); 3041 3042 /* NOTE: AF_ONLINE flag set upon successful completion of 3043 * qla4xxx_initialize_adapter */ 3044 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 3045 } 3046 3047 /* Retry failed adapter initialization, if necessary 3048 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 3049 * case to prevent ping-pong resets between functions */ 3050 if (!test_bit(AF_ONLINE, &ha->flags) && 3051 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3052 /* Adapter initialization failed, see if we can retry 3053 * resetting the ha. 3054 * Since we don't want to block the DPC for too long 3055 * with multiple resets in the same thread, 3056 * utilize DPC to retry */ 3057 if (is_qla80XX(ha)) { 3058 ha->isp_ops->idc_lock(ha); 3059 dev_state = qla4_8xxx_rd_direct(ha, 3060 QLA8XXX_CRB_DEV_STATE); 3061 ha->isp_ops->idc_unlock(ha); 3062 if (dev_state == QLA8XXX_DEV_FAILED) { 3063 ql4_printk(KERN_INFO, ha, "%s: don't retry " 3064 "recover adapter. H/W is in Failed " 3065 "state\n", __func__); 3066 qla4xxx_dead_adapter_cleanup(ha); 3067 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3068 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3069 clear_bit(DPC_RESET_HA_FW_CONTEXT, 3070 &ha->dpc_flags); 3071 status = QLA_ERROR; 3072 3073 goto exit_recover; 3074 } 3075 } 3076 3077 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 3078 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 3079 DEBUG2(printk("scsi%ld: recover adapter - retrying " 3080 "(%d) more times\n", ha->host_no, 3081 ha->retry_reset_ha_cnt)); 3082 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3083 status = QLA_ERROR; 3084 } else { 3085 if (ha->retry_reset_ha_cnt > 0) { 3086 /* Schedule another Reset HA--DPC will retry */ 3087 ha->retry_reset_ha_cnt--; 3088 DEBUG2(printk("scsi%ld: recover adapter - " 3089 "retry remaining %d\n", 3090 ha->host_no, 3091 ha->retry_reset_ha_cnt)); 3092 status = QLA_ERROR; 3093 } 3094 3095 if (ha->retry_reset_ha_cnt == 0) { 3096 /* Recover adapter retries have been exhausted. 3097 * Adapter DEAD */ 3098 DEBUG2(printk("scsi%ld: recover adapter " 3099 "failed - board disabled\n", 3100 ha->host_no)); 3101 qla4xxx_dead_adapter_cleanup(ha); 3102 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3103 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3104 clear_bit(DPC_RESET_HA_FW_CONTEXT, 3105 &ha->dpc_flags); 3106 status = QLA_ERROR; 3107 } 3108 } 3109 } else { 3110 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3111 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3112 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3113 } 3114 3115 exit_recover: 3116 ha->adapter_error_count++; 3117 3118 if (test_bit(AF_ONLINE, &ha->flags)) 3119 ha->isp_ops->enable_intrs(ha); 3120 3121 scsi_unblock_requests(ha->host); 3122 3123 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 3124 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 3125 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 3126 3127 return status; 3128 } 3129 3130 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 3131 { 3132 struct iscsi_session *sess; 3133 struct ddb_entry *ddb_entry; 3134 struct scsi_qla_host *ha; 3135 3136 sess = cls_session->dd_data; 3137 ddb_entry = sess->dd_data; 3138 ha = ddb_entry->ha; 3139 if (!iscsi_is_session_online(cls_session)) { 3140 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 3141 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3142 " unblock session\n", ha->host_no, __func__, 3143 ddb_entry->fw_ddb_index); 3144 iscsi_unblock_session(ddb_entry->sess); 3145 } else { 3146 /* Trigger relogin */ 3147 if (ddb_entry->ddb_type == FLASH_DDB) { 3148 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 3149 qla4xxx_arm_relogin_timer(ddb_entry); 3150 } else 3151 iscsi_session_failure(cls_session->dd_data, 3152 ISCSI_ERR_CONN_FAILED); 3153 } 3154 } 3155 } 3156 3157 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 3158 { 3159 struct iscsi_session *sess; 3160 struct ddb_entry *ddb_entry; 3161 struct scsi_qla_host *ha; 3162 3163 sess = cls_session->dd_data; 3164 ddb_entry = sess->dd_data; 3165 ha = ddb_entry->ha; 3166 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3167 " unblock session\n", ha->host_no, __func__, 3168 ddb_entry->fw_ddb_index); 3169 3170 iscsi_unblock_session(ddb_entry->sess); 3171 3172 /* Start scan target */ 3173 if (test_bit(AF_ONLINE, &ha->flags)) { 3174 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3175 " start scan\n", ha->host_no, __func__, 3176 ddb_entry->fw_ddb_index); 3177 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 3178 } 3179 return QLA_SUCCESS; 3180 } 3181 3182 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 3183 { 3184 struct iscsi_session *sess; 3185 struct ddb_entry *ddb_entry; 3186 struct scsi_qla_host *ha; 3187 int status = QLA_SUCCESS; 3188 3189 sess = cls_session->dd_data; 3190 ddb_entry = sess->dd_data; 3191 ha = ddb_entry->ha; 3192 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3193 " unblock user space session\n", ha->host_no, __func__, 3194 ddb_entry->fw_ddb_index); 3195 3196 if (!iscsi_is_session_online(cls_session)) { 3197 iscsi_conn_start(ddb_entry->conn); 3198 iscsi_conn_login_event(ddb_entry->conn, 3199 ISCSI_CONN_STATE_LOGGED_IN); 3200 } else { 3201 ql4_printk(KERN_INFO, ha, 3202 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 3203 ha->host_no, __func__, ddb_entry->fw_ddb_index, 3204 cls_session->sid); 3205 status = QLA_ERROR; 3206 } 3207 3208 return status; 3209 } 3210 3211 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 3212 { 3213 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 3214 } 3215 3216 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 3217 { 3218 uint16_t relogin_timer; 3219 struct iscsi_session *sess; 3220 struct ddb_entry *ddb_entry; 3221 struct scsi_qla_host *ha; 3222 3223 sess = cls_sess->dd_data; 3224 ddb_entry = sess->dd_data; 3225 ha = ddb_entry->ha; 3226 3227 relogin_timer = max(ddb_entry->default_relogin_timeout, 3228 (uint16_t)RELOGIN_TOV); 3229 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 3230 3231 DEBUG2(ql4_printk(KERN_INFO, ha, 3232 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 3233 ddb_entry->fw_ddb_index, relogin_timer)); 3234 3235 qla4xxx_login_flash_ddb(cls_sess); 3236 } 3237 3238 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 3239 { 3240 struct iscsi_session *sess; 3241 struct ddb_entry *ddb_entry; 3242 struct scsi_qla_host *ha; 3243 3244 sess = cls_sess->dd_data; 3245 ddb_entry = sess->dd_data; 3246 ha = ddb_entry->ha; 3247 3248 if (!(ddb_entry->ddb_type == FLASH_DDB)) 3249 return; 3250 3251 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 3252 !iscsi_is_session_online(cls_sess)) { 3253 DEBUG2(ql4_printk(KERN_INFO, ha, 3254 "relogin issued\n")); 3255 qla4xxx_relogin_flash_ddb(cls_sess); 3256 } 3257 } 3258 3259 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 3260 { 3261 if (ha->dpc_thread) 3262 queue_work(ha->dpc_thread, &ha->dpc_work); 3263 } 3264 3265 static struct qla4_work_evt * 3266 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 3267 enum qla4_work_type type) 3268 { 3269 struct qla4_work_evt *e; 3270 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 3271 3272 e = kzalloc(size, GFP_ATOMIC); 3273 if (!e) 3274 return NULL; 3275 3276 INIT_LIST_HEAD(&e->list); 3277 e->type = type; 3278 return e; 3279 } 3280 3281 static void qla4xxx_post_work(struct scsi_qla_host *ha, 3282 struct qla4_work_evt *e) 3283 { 3284 unsigned long flags; 3285 3286 spin_lock_irqsave(&ha->work_lock, flags); 3287 list_add_tail(&e->list, &ha->work_list); 3288 spin_unlock_irqrestore(&ha->work_lock, flags); 3289 qla4xxx_wake_dpc(ha); 3290 } 3291 3292 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 3293 enum iscsi_host_event_code aen_code, 3294 uint32_t data_size, uint8_t *data) 3295 { 3296 struct qla4_work_evt *e; 3297 3298 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 3299 if (!e) 3300 return QLA_ERROR; 3301 3302 e->u.aen.code = aen_code; 3303 e->u.aen.data_size = data_size; 3304 memcpy(e->u.aen.data, data, data_size); 3305 3306 qla4xxx_post_work(ha, e); 3307 3308 return QLA_SUCCESS; 3309 } 3310 3311 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 3312 uint32_t status, uint32_t pid, 3313 uint32_t data_size, uint8_t *data) 3314 { 3315 struct qla4_work_evt *e; 3316 3317 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 3318 if (!e) 3319 return QLA_ERROR; 3320 3321 e->u.ping.status = status; 3322 e->u.ping.pid = pid; 3323 e->u.ping.data_size = data_size; 3324 memcpy(e->u.ping.data, data, data_size); 3325 3326 qla4xxx_post_work(ha, e); 3327 3328 return QLA_SUCCESS; 3329 } 3330 3331 static void qla4xxx_do_work(struct scsi_qla_host *ha) 3332 { 3333 struct qla4_work_evt *e, *tmp; 3334 unsigned long flags; 3335 LIST_HEAD(work); 3336 3337 spin_lock_irqsave(&ha->work_lock, flags); 3338 list_splice_init(&ha->work_list, &work); 3339 spin_unlock_irqrestore(&ha->work_lock, flags); 3340 3341 list_for_each_entry_safe(e, tmp, &work, list) { 3342 list_del_init(&e->list); 3343 3344 switch (e->type) { 3345 case QLA4_EVENT_AEN: 3346 iscsi_post_host_event(ha->host_no, 3347 &qla4xxx_iscsi_transport, 3348 e->u.aen.code, 3349 e->u.aen.data_size, 3350 e->u.aen.data); 3351 break; 3352 case QLA4_EVENT_PING_STATUS: 3353 iscsi_ping_comp_event(ha->host_no, 3354 &qla4xxx_iscsi_transport, 3355 e->u.ping.status, 3356 e->u.ping.pid, 3357 e->u.ping.data_size, 3358 e->u.ping.data); 3359 break; 3360 default: 3361 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 3362 "supported", e->type); 3363 } 3364 kfree(e); 3365 } 3366 } 3367 3368 /** 3369 * qla4xxx_do_dpc - dpc routine 3370 * @data: in our case pointer to adapter structure 3371 * 3372 * This routine is a task that is schedule by the interrupt handler 3373 * to perform the background processing for interrupts. We put it 3374 * on a task queue that is consumed whenever the scheduler runs; that's 3375 * so you can do anything (i.e. put the process to sleep etc). In fact, 3376 * the mid-level tries to sleep when it reaches the driver threshold 3377 * "host->can_queue". This can cause a panic if we were in our interrupt code. 3378 **/ 3379 static void qla4xxx_do_dpc(struct work_struct *work) 3380 { 3381 struct scsi_qla_host *ha = 3382 container_of(work, struct scsi_qla_host, dpc_work); 3383 int status = QLA_ERROR; 3384 3385 DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 3386 "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 3387 ha->host_no, __func__, ha->flags, ha->dpc_flags)) 3388 3389 /* Initialization not yet finished. Don't do anything yet. */ 3390 if (!test_bit(AF_INIT_DONE, &ha->flags)) 3391 return; 3392 3393 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 3394 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 3395 ha->host_no, __func__, ha->flags)); 3396 return; 3397 } 3398 3399 /* post events to application */ 3400 qla4xxx_do_work(ha); 3401 3402 if (is_qla80XX(ha)) { 3403 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 3404 if (is_qla8032(ha)) { 3405 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 3406 __func__); 3407 /* disable pause frame for ISP83xx */ 3408 qla4_83xx_disable_pause(ha); 3409 } 3410 3411 ha->isp_ops->idc_lock(ha); 3412 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 3413 QLA8XXX_DEV_FAILED); 3414 ha->isp_ops->idc_unlock(ha); 3415 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 3416 qla4_8xxx_device_state_handler(ha); 3417 } 3418 3419 if (test_and_clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) 3420 qla4_83xx_post_idc_ack(ha); 3421 3422 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 3423 qla4_8xxx_need_qsnt_handler(ha); 3424 } 3425 } 3426 3427 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 3428 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 3429 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 3430 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 3431 if ((is_qla8022(ha) && ql4xdontresethba) || 3432 (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) { 3433 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 3434 ha->host_no, __func__)); 3435 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3436 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3437 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3438 goto dpc_post_reset_ha; 3439 } 3440 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 3441 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 3442 qla4xxx_recover_adapter(ha); 3443 3444 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3445 uint8_t wait_time = RESET_INTR_TOV; 3446 3447 while ((readw(&ha->reg->ctrl_status) & 3448 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 3449 if (--wait_time == 0) 3450 break; 3451 msleep(1000); 3452 } 3453 if (wait_time == 0) 3454 DEBUG2(printk("scsi%ld: %s: SR|FSR " 3455 "bit not cleared-- resetting\n", 3456 ha->host_no, __func__)); 3457 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3458 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 3459 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3460 status = qla4xxx_recover_adapter(ha); 3461 } 3462 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3463 if (status == QLA_SUCCESS) 3464 ha->isp_ops->enable_intrs(ha); 3465 } 3466 } 3467 3468 dpc_post_reset_ha: 3469 /* ---- process AEN? --- */ 3470 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 3471 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 3472 3473 /* ---- Get DHCP IP Address? --- */ 3474 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 3475 qla4xxx_get_dhcp_ip_address(ha); 3476 3477 /* ---- relogin device? --- */ 3478 if (adapter_up(ha) && 3479 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 3480 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 3481 } 3482 3483 /* ---- link change? --- */ 3484 if (!test_bit(AF_LOOPBACK, &ha->flags) && 3485 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 3486 if (!test_bit(AF_LINK_UP, &ha->flags)) { 3487 /* ---- link down? --- */ 3488 qla4xxx_mark_all_devices_missing(ha); 3489 } else { 3490 /* ---- link up? --- * 3491 * F/W will auto login to all devices ONLY ONCE after 3492 * link up during driver initialization and runtime 3493 * fatal error recovery. Therefore, the driver must 3494 * manually relogin to devices when recovering from 3495 * connection failures, logouts, expired KATO, etc. */ 3496 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 3497 qla4xxx_build_ddb_list(ha, ha->is_reset); 3498 iscsi_host_for_each_session(ha->host, 3499 qla4xxx_login_flash_ddb); 3500 } else 3501 qla4xxx_relogin_all_devices(ha); 3502 } 3503 } 3504 } 3505 3506 /** 3507 * qla4xxx_free_adapter - release the adapter 3508 * @ha: pointer to adapter structure 3509 **/ 3510 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 3511 { 3512 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 3513 3514 /* Turn-off interrupts on the card. */ 3515 ha->isp_ops->disable_intrs(ha); 3516 3517 if (is_qla40XX(ha)) { 3518 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 3519 &ha->reg->ctrl_status); 3520 readl(&ha->reg->ctrl_status); 3521 } else if (is_qla8022(ha)) { 3522 writel(0, &ha->qla4_82xx_reg->host_int); 3523 readl(&ha->qla4_82xx_reg->host_int); 3524 } else if (is_qla8032(ha)) { 3525 writel(0, &ha->qla4_83xx_reg->risc_intr); 3526 readl(&ha->qla4_83xx_reg->risc_intr); 3527 } 3528 3529 /* Remove timer thread, if present */ 3530 if (ha->timer_active) 3531 qla4xxx_stop_timer(ha); 3532 3533 /* Kill the kernel thread for this host */ 3534 if (ha->dpc_thread) 3535 destroy_workqueue(ha->dpc_thread); 3536 3537 /* Kill the kernel thread for this host */ 3538 if (ha->task_wq) 3539 destroy_workqueue(ha->task_wq); 3540 3541 /* Put firmware in known state */ 3542 ha->isp_ops->reset_firmware(ha); 3543 3544 if (is_qla80XX(ha)) { 3545 ha->isp_ops->idc_lock(ha); 3546 qla4_8xxx_clear_drv_active(ha); 3547 ha->isp_ops->idc_unlock(ha); 3548 } 3549 3550 /* Detach interrupts */ 3551 qla4xxx_free_irqs(ha); 3552 3553 /* free extra memory */ 3554 qla4xxx_mem_free(ha); 3555 } 3556 3557 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 3558 { 3559 int status = 0; 3560 unsigned long mem_base, mem_len, db_base, db_len; 3561 struct pci_dev *pdev = ha->pdev; 3562 3563 status = pci_request_regions(pdev, DRIVER_NAME); 3564 if (status) { 3565 printk(KERN_WARNING 3566 "scsi(%ld) Failed to reserve PIO regions (%s) " 3567 "status=%d\n", ha->host_no, pci_name(pdev), status); 3568 goto iospace_error_exit; 3569 } 3570 3571 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 3572 __func__, pdev->revision)); 3573 ha->revision_id = pdev->revision; 3574 3575 /* remap phys address */ 3576 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 3577 mem_len = pci_resource_len(pdev, 0); 3578 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 3579 __func__, mem_base, mem_len)); 3580 3581 /* mapping of pcibase pointer */ 3582 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 3583 if (!ha->nx_pcibase) { 3584 printk(KERN_ERR 3585 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 3586 pci_release_regions(ha->pdev); 3587 goto iospace_error_exit; 3588 } 3589 3590 /* Mapping of IO base pointer, door bell read and write pointer */ 3591 3592 /* mapping of IO base pointer */ 3593 if (is_qla8022(ha)) { 3594 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 3595 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 3596 (ha->pdev->devfn << 11)); 3597 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 3598 QLA82XX_CAM_RAM_DB2); 3599 } else if (is_qla8032(ha)) { 3600 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 3601 ((uint8_t *)ha->nx_pcibase); 3602 } 3603 3604 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 3605 db_len = pci_resource_len(pdev, 4); 3606 3607 return 0; 3608 iospace_error_exit: 3609 return -ENOMEM; 3610 } 3611 3612 /*** 3613 * qla4xxx_iospace_config - maps registers 3614 * @ha: pointer to adapter structure 3615 * 3616 * This routines maps HBA's registers from the pci address space 3617 * into the kernel virtual address space for memory mapped i/o. 3618 **/ 3619 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 3620 { 3621 unsigned long pio, pio_len, pio_flags; 3622 unsigned long mmio, mmio_len, mmio_flags; 3623 3624 pio = pci_resource_start(ha->pdev, 0); 3625 pio_len = pci_resource_len(ha->pdev, 0); 3626 pio_flags = pci_resource_flags(ha->pdev, 0); 3627 if (pio_flags & IORESOURCE_IO) { 3628 if (pio_len < MIN_IOBASE_LEN) { 3629 ql4_printk(KERN_WARNING, ha, 3630 "Invalid PCI I/O region size\n"); 3631 pio = 0; 3632 } 3633 } else { 3634 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 3635 pio = 0; 3636 } 3637 3638 /* Use MMIO operations for all accesses. */ 3639 mmio = pci_resource_start(ha->pdev, 1); 3640 mmio_len = pci_resource_len(ha->pdev, 1); 3641 mmio_flags = pci_resource_flags(ha->pdev, 1); 3642 3643 if (!(mmio_flags & IORESOURCE_MEM)) { 3644 ql4_printk(KERN_ERR, ha, 3645 "region #0 not an MMIO resource, aborting\n"); 3646 3647 goto iospace_error_exit; 3648 } 3649 3650 if (mmio_len < MIN_IOBASE_LEN) { 3651 ql4_printk(KERN_ERR, ha, 3652 "Invalid PCI mem region size, aborting\n"); 3653 goto iospace_error_exit; 3654 } 3655 3656 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 3657 ql4_printk(KERN_WARNING, ha, 3658 "Failed to reserve PIO/MMIO regions\n"); 3659 3660 goto iospace_error_exit; 3661 } 3662 3663 ha->pio_address = pio; 3664 ha->pio_length = pio_len; 3665 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 3666 if (!ha->reg) { 3667 ql4_printk(KERN_ERR, ha, 3668 "cannot remap MMIO, aborting\n"); 3669 3670 goto iospace_error_exit; 3671 } 3672 3673 return 0; 3674 3675 iospace_error_exit: 3676 return -ENOMEM; 3677 } 3678 3679 static struct isp_operations qla4xxx_isp_ops = { 3680 .iospace_config = qla4xxx_iospace_config, 3681 .pci_config = qla4xxx_pci_config, 3682 .disable_intrs = qla4xxx_disable_intrs, 3683 .enable_intrs = qla4xxx_enable_intrs, 3684 .start_firmware = qla4xxx_start_firmware, 3685 .intr_handler = qla4xxx_intr_handler, 3686 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 3687 .reset_chip = qla4xxx_soft_reset, 3688 .reset_firmware = qla4xxx_hw_reset, 3689 .queue_iocb = qla4xxx_queue_iocb, 3690 .complete_iocb = qla4xxx_complete_iocb, 3691 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 3692 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 3693 .get_sys_info = qla4xxx_get_sys_info, 3694 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 3695 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 3696 }; 3697 3698 static struct isp_operations qla4_82xx_isp_ops = { 3699 .iospace_config = qla4_8xxx_iospace_config, 3700 .pci_config = qla4_8xxx_pci_config, 3701 .disable_intrs = qla4_82xx_disable_intrs, 3702 .enable_intrs = qla4_82xx_enable_intrs, 3703 .start_firmware = qla4_8xxx_load_risc, 3704 .restart_firmware = qla4_82xx_try_start_fw, 3705 .intr_handler = qla4_82xx_intr_handler, 3706 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 3707 .need_reset = qla4_8xxx_need_reset, 3708 .reset_chip = qla4_82xx_isp_reset, 3709 .reset_firmware = qla4_8xxx_stop_firmware, 3710 .queue_iocb = qla4_82xx_queue_iocb, 3711 .complete_iocb = qla4_82xx_complete_iocb, 3712 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 3713 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 3714 .get_sys_info = qla4_8xxx_get_sys_info, 3715 .rd_reg_direct = qla4_82xx_rd_32, 3716 .wr_reg_direct = qla4_82xx_wr_32, 3717 .rd_reg_indirect = qla4_82xx_md_rd_32, 3718 .wr_reg_indirect = qla4_82xx_md_wr_32, 3719 .idc_lock = qla4_82xx_idc_lock, 3720 .idc_unlock = qla4_82xx_idc_unlock, 3721 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 3722 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 3723 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 3724 }; 3725 3726 static struct isp_operations qla4_83xx_isp_ops = { 3727 .iospace_config = qla4_8xxx_iospace_config, 3728 .pci_config = qla4_8xxx_pci_config, 3729 .disable_intrs = qla4_83xx_disable_intrs, 3730 .enable_intrs = qla4_83xx_enable_intrs, 3731 .start_firmware = qla4_8xxx_load_risc, 3732 .restart_firmware = qla4_83xx_start_firmware, 3733 .intr_handler = qla4_83xx_intr_handler, 3734 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 3735 .need_reset = qla4_8xxx_need_reset, 3736 .reset_chip = qla4_83xx_isp_reset, 3737 .reset_firmware = qla4_8xxx_stop_firmware, 3738 .queue_iocb = qla4_83xx_queue_iocb, 3739 .complete_iocb = qla4_83xx_complete_iocb, 3740 .rd_shdw_req_q_out = qla4_83xx_rd_shdw_req_q_out, 3741 .rd_shdw_rsp_q_in = qla4_83xx_rd_shdw_rsp_q_in, 3742 .get_sys_info = qla4_8xxx_get_sys_info, 3743 .rd_reg_direct = qla4_83xx_rd_reg, 3744 .wr_reg_direct = qla4_83xx_wr_reg, 3745 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 3746 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 3747 .idc_lock = qla4_83xx_drv_lock, 3748 .idc_unlock = qla4_83xx_drv_unlock, 3749 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 3750 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 3751 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 3752 }; 3753 3754 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3755 { 3756 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 3757 } 3758 3759 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3760 { 3761 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 3762 } 3763 3764 uint16_t qla4_83xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3765 { 3766 return (uint16_t)le32_to_cpu(readl(&ha->qla4_83xx_reg->req_q_out)); 3767 } 3768 3769 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3770 { 3771 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 3772 } 3773 3774 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3775 { 3776 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 3777 } 3778 3779 uint16_t qla4_83xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3780 { 3781 return (uint16_t)le32_to_cpu(readl(&ha->qla4_83xx_reg->rsp_q_in)); 3782 } 3783 3784 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 3785 { 3786 struct scsi_qla_host *ha = data; 3787 char *str = buf; 3788 int rc; 3789 3790 switch (type) { 3791 case ISCSI_BOOT_ETH_FLAGS: 3792 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 3793 break; 3794 case ISCSI_BOOT_ETH_INDEX: 3795 rc = sprintf(str, "0\n"); 3796 break; 3797 case ISCSI_BOOT_ETH_MAC: 3798 rc = sysfs_format_mac(str, ha->my_mac, 3799 MAC_ADDR_LEN); 3800 break; 3801 default: 3802 rc = -ENOSYS; 3803 break; 3804 } 3805 return rc; 3806 } 3807 3808 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 3809 { 3810 int rc; 3811 3812 switch (type) { 3813 case ISCSI_BOOT_ETH_FLAGS: 3814 case ISCSI_BOOT_ETH_MAC: 3815 case ISCSI_BOOT_ETH_INDEX: 3816 rc = S_IRUGO; 3817 break; 3818 default: 3819 rc = 0; 3820 break; 3821 } 3822 return rc; 3823 } 3824 3825 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 3826 { 3827 struct scsi_qla_host *ha = data; 3828 char *str = buf; 3829 int rc; 3830 3831 switch (type) { 3832 case ISCSI_BOOT_INI_INITIATOR_NAME: 3833 rc = sprintf(str, "%s\n", ha->name_string); 3834 break; 3835 default: 3836 rc = -ENOSYS; 3837 break; 3838 } 3839 return rc; 3840 } 3841 3842 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 3843 { 3844 int rc; 3845 3846 switch (type) { 3847 case ISCSI_BOOT_INI_INITIATOR_NAME: 3848 rc = S_IRUGO; 3849 break; 3850 default: 3851 rc = 0; 3852 break; 3853 } 3854 return rc; 3855 } 3856 3857 static ssize_t 3858 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 3859 char *buf) 3860 { 3861 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 3862 char *str = buf; 3863 int rc; 3864 3865 switch (type) { 3866 case ISCSI_BOOT_TGT_NAME: 3867 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 3868 break; 3869 case ISCSI_BOOT_TGT_IP_ADDR: 3870 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 3871 rc = sprintf(buf, "%pI4\n", 3872 &boot_conn->dest_ipaddr.ip_address); 3873 else 3874 rc = sprintf(str, "%pI6\n", 3875 &boot_conn->dest_ipaddr.ip_address); 3876 break; 3877 case ISCSI_BOOT_TGT_PORT: 3878 rc = sprintf(str, "%d\n", boot_conn->dest_port); 3879 break; 3880 case ISCSI_BOOT_TGT_CHAP_NAME: 3881 rc = sprintf(str, "%.*s\n", 3882 boot_conn->chap.target_chap_name_length, 3883 (char *)&boot_conn->chap.target_chap_name); 3884 break; 3885 case ISCSI_BOOT_TGT_CHAP_SECRET: 3886 rc = sprintf(str, "%.*s\n", 3887 boot_conn->chap.target_secret_length, 3888 (char *)&boot_conn->chap.target_secret); 3889 break; 3890 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 3891 rc = sprintf(str, "%.*s\n", 3892 boot_conn->chap.intr_chap_name_length, 3893 (char *)&boot_conn->chap.intr_chap_name); 3894 break; 3895 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 3896 rc = sprintf(str, "%.*s\n", 3897 boot_conn->chap.intr_secret_length, 3898 (char *)&boot_conn->chap.intr_secret); 3899 break; 3900 case ISCSI_BOOT_TGT_FLAGS: 3901 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 3902 break; 3903 case ISCSI_BOOT_TGT_NIC_ASSOC: 3904 rc = sprintf(str, "0\n"); 3905 break; 3906 default: 3907 rc = -ENOSYS; 3908 break; 3909 } 3910 return rc; 3911 } 3912 3913 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 3914 { 3915 struct scsi_qla_host *ha = data; 3916 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 3917 3918 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 3919 } 3920 3921 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 3922 { 3923 struct scsi_qla_host *ha = data; 3924 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 3925 3926 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 3927 } 3928 3929 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 3930 { 3931 int rc; 3932 3933 switch (type) { 3934 case ISCSI_BOOT_TGT_NAME: 3935 case ISCSI_BOOT_TGT_IP_ADDR: 3936 case ISCSI_BOOT_TGT_PORT: 3937 case ISCSI_BOOT_TGT_CHAP_NAME: 3938 case ISCSI_BOOT_TGT_CHAP_SECRET: 3939 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 3940 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 3941 case ISCSI_BOOT_TGT_NIC_ASSOC: 3942 case ISCSI_BOOT_TGT_FLAGS: 3943 rc = S_IRUGO; 3944 break; 3945 default: 3946 rc = 0; 3947 break; 3948 } 3949 return rc; 3950 } 3951 3952 static void qla4xxx_boot_release(void *data) 3953 { 3954 struct scsi_qla_host *ha = data; 3955 3956 scsi_host_put(ha->host); 3957 } 3958 3959 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 3960 { 3961 dma_addr_t buf_dma; 3962 uint32_t addr, pri_addr, sec_addr; 3963 uint32_t offset; 3964 uint16_t func_num; 3965 uint8_t val; 3966 uint8_t *buf = NULL; 3967 size_t size = 13 * sizeof(uint8_t); 3968 int ret = QLA_SUCCESS; 3969 3970 func_num = PCI_FUNC(ha->pdev->devfn); 3971 3972 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 3973 __func__, ha->pdev->device, func_num); 3974 3975 if (is_qla40XX(ha)) { 3976 if (func_num == 1) { 3977 addr = NVRAM_PORT0_BOOT_MODE; 3978 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 3979 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 3980 } else if (func_num == 3) { 3981 addr = NVRAM_PORT1_BOOT_MODE; 3982 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 3983 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 3984 } else { 3985 ret = QLA_ERROR; 3986 goto exit_boot_info; 3987 } 3988 3989 /* Check Boot Mode */ 3990 val = rd_nvram_byte(ha, addr); 3991 if (!(val & 0x07)) { 3992 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 3993 "options : 0x%x\n", __func__, val)); 3994 ret = QLA_ERROR; 3995 goto exit_boot_info; 3996 } 3997 3998 /* get primary valid target index */ 3999 val = rd_nvram_byte(ha, pri_addr); 4000 if (val & BIT_7) 4001 ddb_index[0] = (val & 0x7f); 4002 4003 /* get secondary valid target index */ 4004 val = rd_nvram_byte(ha, sec_addr); 4005 if (val & BIT_7) 4006 ddb_index[1] = (val & 0x7f); 4007 4008 } else if (is_qla8022(ha)) { 4009 buf = dma_alloc_coherent(&ha->pdev->dev, size, 4010 &buf_dma, GFP_KERNEL); 4011 if (!buf) { 4012 DEBUG2(ql4_printk(KERN_ERR, ha, 4013 "%s: Unable to allocate dma buffer\n", 4014 __func__)); 4015 ret = QLA_ERROR; 4016 goto exit_boot_info; 4017 } 4018 4019 if (ha->port_num == 0) 4020 offset = BOOT_PARAM_OFFSET_PORT0; 4021 else if (ha->port_num == 1) 4022 offset = BOOT_PARAM_OFFSET_PORT1; 4023 else { 4024 ret = QLA_ERROR; 4025 goto exit_boot_info_free; 4026 } 4027 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 4028 offset; 4029 if (qla4xxx_get_flash(ha, buf_dma, addr, 4030 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 4031 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 4032 " failed\n", ha->host_no, __func__)); 4033 ret = QLA_ERROR; 4034 goto exit_boot_info_free; 4035 } 4036 /* Check Boot Mode */ 4037 if (!(buf[1] & 0x07)) { 4038 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 4039 " : 0x%x\n", buf[1])); 4040 ret = QLA_ERROR; 4041 goto exit_boot_info_free; 4042 } 4043 4044 /* get primary valid target index */ 4045 if (buf[2] & BIT_7) 4046 ddb_index[0] = buf[2] & 0x7f; 4047 4048 /* get secondary valid target index */ 4049 if (buf[11] & BIT_7) 4050 ddb_index[1] = buf[11] & 0x7f; 4051 } else { 4052 ret = QLA_ERROR; 4053 goto exit_boot_info; 4054 } 4055 4056 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 4057 " target ID %d\n", __func__, ddb_index[0], 4058 ddb_index[1])); 4059 4060 exit_boot_info_free: 4061 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 4062 exit_boot_info: 4063 ha->pri_ddb_idx = ddb_index[0]; 4064 ha->sec_ddb_idx = ddb_index[1]; 4065 return ret; 4066 } 4067 4068 /** 4069 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 4070 * @ha: pointer to adapter structure 4071 * @username: CHAP username to be returned 4072 * @password: CHAP password to be returned 4073 * 4074 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 4075 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 4076 * So from the CHAP cache find the first BIDI CHAP entry and set it 4077 * to the boot record in sysfs. 4078 **/ 4079 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 4080 char *password) 4081 { 4082 int i, ret = -EINVAL; 4083 int max_chap_entries = 0; 4084 struct ql4_chap_table *chap_table; 4085 4086 if (is_qla8022(ha)) 4087 max_chap_entries = (ha->hw.flt_chap_size / 2) / 4088 sizeof(struct ql4_chap_table); 4089 else 4090 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 4091 4092 if (!ha->chap_list) { 4093 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 4094 return ret; 4095 } 4096 4097 mutex_lock(&ha->chap_sem); 4098 for (i = 0; i < max_chap_entries; i++) { 4099 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 4100 if (chap_table->cookie != 4101 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 4102 continue; 4103 } 4104 4105 if (chap_table->flags & BIT_7) /* local */ 4106 continue; 4107 4108 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 4109 continue; 4110 4111 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 4112 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 4113 ret = 0; 4114 break; 4115 } 4116 mutex_unlock(&ha->chap_sem); 4117 4118 return ret; 4119 } 4120 4121 4122 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 4123 struct ql4_boot_session_info *boot_sess, 4124 uint16_t ddb_index) 4125 { 4126 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 4127 struct dev_db_entry *fw_ddb_entry; 4128 dma_addr_t fw_ddb_entry_dma; 4129 uint16_t idx; 4130 uint16_t options; 4131 int ret = QLA_SUCCESS; 4132 4133 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 4134 &fw_ddb_entry_dma, GFP_KERNEL); 4135 if (!fw_ddb_entry) { 4136 DEBUG2(ql4_printk(KERN_ERR, ha, 4137 "%s: Unable to allocate dma buffer.\n", 4138 __func__)); 4139 ret = QLA_ERROR; 4140 return ret; 4141 } 4142 4143 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 4144 fw_ddb_entry_dma, ddb_index)) { 4145 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 4146 "index [%d]\n", __func__, ddb_index)); 4147 ret = QLA_ERROR; 4148 goto exit_boot_target; 4149 } 4150 4151 /* Update target name and IP from DDB */ 4152 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 4153 min(sizeof(boot_sess->target_name), 4154 sizeof(fw_ddb_entry->iscsi_name))); 4155 4156 options = le16_to_cpu(fw_ddb_entry->options); 4157 if (options & DDB_OPT_IPV6_DEVICE) { 4158 memcpy(&boot_conn->dest_ipaddr.ip_address, 4159 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 4160 } else { 4161 boot_conn->dest_ipaddr.ip_type = 0x1; 4162 memcpy(&boot_conn->dest_ipaddr.ip_address, 4163 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 4164 } 4165 4166 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 4167 4168 /* update chap information */ 4169 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 4170 4171 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 4172 4173 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 4174 4175 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 4176 target_chap_name, 4177 (char *)&boot_conn->chap.target_secret, 4178 idx); 4179 if (ret) { 4180 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 4181 ret = QLA_ERROR; 4182 goto exit_boot_target; 4183 } 4184 4185 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 4186 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 4187 } 4188 4189 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 4190 4191 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 4192 4193 ret = qla4xxx_get_bidi_chap(ha, 4194 (char *)&boot_conn->chap.intr_chap_name, 4195 (char *)&boot_conn->chap.intr_secret); 4196 4197 if (ret) { 4198 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 4199 ret = QLA_ERROR; 4200 goto exit_boot_target; 4201 } 4202 4203 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 4204 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 4205 } 4206 4207 exit_boot_target: 4208 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 4209 fw_ddb_entry, fw_ddb_entry_dma); 4210 return ret; 4211 } 4212 4213 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 4214 { 4215 uint16_t ddb_index[2]; 4216 int ret = QLA_ERROR; 4217 int rval; 4218 4219 memset(ddb_index, 0, sizeof(ddb_index)); 4220 ddb_index[0] = 0xffff; 4221 ddb_index[1] = 0xffff; 4222 ret = get_fw_boot_info(ha, ddb_index); 4223 if (ret != QLA_SUCCESS) { 4224 DEBUG2(ql4_printk(KERN_INFO, ha, 4225 "%s: No boot target configured.\n", __func__)); 4226 return ret; 4227 } 4228 4229 if (ql4xdisablesysfsboot) 4230 return QLA_SUCCESS; 4231 4232 if (ddb_index[0] == 0xffff) 4233 goto sec_target; 4234 4235 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 4236 ddb_index[0]); 4237 if (rval != QLA_SUCCESS) { 4238 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 4239 "configured\n", __func__)); 4240 } else 4241 ret = QLA_SUCCESS; 4242 4243 sec_target: 4244 if (ddb_index[1] == 0xffff) 4245 goto exit_get_boot_info; 4246 4247 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 4248 ddb_index[1]); 4249 if (rval != QLA_SUCCESS) { 4250 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 4251 " configured\n", __func__)); 4252 } else 4253 ret = QLA_SUCCESS; 4254 4255 exit_get_boot_info: 4256 return ret; 4257 } 4258 4259 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 4260 { 4261 struct iscsi_boot_kobj *boot_kobj; 4262 4263 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 4264 return QLA_ERROR; 4265 4266 if (ql4xdisablesysfsboot) { 4267 ql4_printk(KERN_INFO, ha, 4268 "%s: syfsboot disabled - driver will trigger login " 4269 "and publish session for discovery .\n", __func__); 4270 return QLA_SUCCESS; 4271 } 4272 4273 4274 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 4275 if (!ha->boot_kset) 4276 goto kset_free; 4277 4278 if (!scsi_host_get(ha->host)) 4279 goto kset_free; 4280 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 4281 qla4xxx_show_boot_tgt_pri_info, 4282 qla4xxx_tgt_get_attr_visibility, 4283 qla4xxx_boot_release); 4284 if (!boot_kobj) 4285 goto put_host; 4286 4287 if (!scsi_host_get(ha->host)) 4288 goto kset_free; 4289 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 4290 qla4xxx_show_boot_tgt_sec_info, 4291 qla4xxx_tgt_get_attr_visibility, 4292 qla4xxx_boot_release); 4293 if (!boot_kobj) 4294 goto put_host; 4295 4296 if (!scsi_host_get(ha->host)) 4297 goto kset_free; 4298 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 4299 qla4xxx_show_boot_ini_info, 4300 qla4xxx_ini_get_attr_visibility, 4301 qla4xxx_boot_release); 4302 if (!boot_kobj) 4303 goto put_host; 4304 4305 if (!scsi_host_get(ha->host)) 4306 goto kset_free; 4307 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 4308 qla4xxx_show_boot_eth_info, 4309 qla4xxx_eth_get_attr_visibility, 4310 qla4xxx_boot_release); 4311 if (!boot_kobj) 4312 goto put_host; 4313 4314 return QLA_SUCCESS; 4315 4316 put_host: 4317 scsi_host_put(ha->host); 4318 kset_free: 4319 iscsi_boot_destroy_kset(ha->boot_kset); 4320 return -ENOMEM; 4321 } 4322 4323 4324 /** 4325 * qla4xxx_create chap_list - Create CHAP list from FLASH 4326 * @ha: pointer to adapter structure 4327 * 4328 * Read flash and make a list of CHAP entries, during login when a CHAP entry 4329 * is received, it will be checked in this list. If entry exist then the CHAP 4330 * entry index is set in the DDB. If CHAP entry does not exist in this list 4331 * then a new entry is added in FLASH in CHAP table and the index obtained is 4332 * used in the DDB. 4333 **/ 4334 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 4335 { 4336 int rval = 0; 4337 uint8_t *chap_flash_data = NULL; 4338 uint32_t offset; 4339 dma_addr_t chap_dma; 4340 uint32_t chap_size = 0; 4341 4342 if (is_qla40XX(ha)) 4343 chap_size = MAX_CHAP_ENTRIES_40XX * 4344 sizeof(struct ql4_chap_table); 4345 else /* Single region contains CHAP info for both 4346 * ports which is divided into half for each port. 4347 */ 4348 chap_size = ha->hw.flt_chap_size / 2; 4349 4350 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 4351 &chap_dma, GFP_KERNEL); 4352 if (!chap_flash_data) { 4353 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 4354 return; 4355 } 4356 if (is_qla40XX(ha)) 4357 offset = FLASH_CHAP_OFFSET; 4358 else { 4359 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 4360 if (ha->port_num == 1) 4361 offset += chap_size; 4362 } 4363 4364 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 4365 if (rval != QLA_SUCCESS) 4366 goto exit_chap_list; 4367 4368 if (ha->chap_list == NULL) 4369 ha->chap_list = vmalloc(chap_size); 4370 if (ha->chap_list == NULL) { 4371 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 4372 goto exit_chap_list; 4373 } 4374 4375 memcpy(ha->chap_list, chap_flash_data, chap_size); 4376 4377 exit_chap_list: 4378 dma_free_coherent(&ha->pdev->dev, chap_size, 4379 chap_flash_data, chap_dma); 4380 } 4381 4382 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 4383 struct ql4_tuple_ddb *tddb) 4384 { 4385 struct scsi_qla_host *ha; 4386 struct iscsi_cls_session *cls_sess; 4387 struct iscsi_cls_conn *cls_conn; 4388 struct iscsi_session *sess; 4389 struct iscsi_conn *conn; 4390 4391 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 4392 ha = ddb_entry->ha; 4393 cls_sess = ddb_entry->sess; 4394 sess = cls_sess->dd_data; 4395 cls_conn = ddb_entry->conn; 4396 conn = cls_conn->dd_data; 4397 4398 tddb->tpgt = sess->tpgt; 4399 tddb->port = conn->persistent_port; 4400 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 4401 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 4402 } 4403 4404 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 4405 struct ql4_tuple_ddb *tddb, 4406 uint8_t *flash_isid) 4407 { 4408 uint16_t options = 0; 4409 4410 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 4411 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 4412 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 4413 4414 options = le16_to_cpu(fw_ddb_entry->options); 4415 if (options & DDB_OPT_IPV6_DEVICE) 4416 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 4417 else 4418 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 4419 4420 tddb->port = le16_to_cpu(fw_ddb_entry->port); 4421 4422 if (flash_isid == NULL) 4423 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 4424 sizeof(tddb->isid)); 4425 else 4426 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 4427 } 4428 4429 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 4430 struct ql4_tuple_ddb *old_tddb, 4431 struct ql4_tuple_ddb *new_tddb, 4432 uint8_t is_isid_compare) 4433 { 4434 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 4435 return QLA_ERROR; 4436 4437 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 4438 return QLA_ERROR; 4439 4440 if (old_tddb->port != new_tddb->port) 4441 return QLA_ERROR; 4442 4443 /* For multi sessions, driver generates the ISID, so do not compare 4444 * ISID in reset path since it would be a comparison between the 4445 * driver generated ISID and firmware generated ISID. This could 4446 * lead to adding duplicated DDBs in the list as driver generated 4447 * ISID would not match firmware generated ISID. 4448 */ 4449 if (is_isid_compare) { 4450 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x" 4451 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n", 4452 __func__, old_tddb->isid[5], old_tddb->isid[4], 4453 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1], 4454 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4], 4455 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1], 4456 new_tddb->isid[0])); 4457 4458 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 4459 sizeof(old_tddb->isid))) 4460 return QLA_ERROR; 4461 } 4462 4463 DEBUG2(ql4_printk(KERN_INFO, ha, 4464 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 4465 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 4466 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 4467 new_tddb->ip_addr, new_tddb->iscsi_name)); 4468 4469 return QLA_SUCCESS; 4470 } 4471 4472 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 4473 struct dev_db_entry *fw_ddb_entry) 4474 { 4475 struct ddb_entry *ddb_entry; 4476 struct ql4_tuple_ddb *fw_tddb = NULL; 4477 struct ql4_tuple_ddb *tmp_tddb = NULL; 4478 int idx; 4479 int ret = QLA_ERROR; 4480 4481 fw_tddb = vzalloc(sizeof(*fw_tddb)); 4482 if (!fw_tddb) { 4483 DEBUG2(ql4_printk(KERN_WARNING, ha, 4484 "Memory Allocation failed.\n")); 4485 ret = QLA_SUCCESS; 4486 goto exit_check; 4487 } 4488 4489 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 4490 if (!tmp_tddb) { 4491 DEBUG2(ql4_printk(KERN_WARNING, ha, 4492 "Memory Allocation failed.\n")); 4493 ret = QLA_SUCCESS; 4494 goto exit_check; 4495 } 4496 4497 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 4498 4499 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 4500 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 4501 if (ddb_entry == NULL) 4502 continue; 4503 4504 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 4505 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 4506 ret = QLA_SUCCESS; /* found */ 4507 goto exit_check; 4508 } 4509 } 4510 4511 exit_check: 4512 if (fw_tddb) 4513 vfree(fw_tddb); 4514 if (tmp_tddb) 4515 vfree(tmp_tddb); 4516 return ret; 4517 } 4518 4519 /** 4520 * qla4xxx_check_existing_isid - check if target with same isid exist 4521 * in target list 4522 * @list_nt: list of target 4523 * @isid: isid to check 4524 * 4525 * This routine return QLA_SUCCESS if target with same isid exist 4526 **/ 4527 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 4528 { 4529 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 4530 struct dev_db_entry *fw_ddb_entry; 4531 4532 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 4533 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 4534 4535 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 4536 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 4537 return QLA_SUCCESS; 4538 } 4539 } 4540 return QLA_ERROR; 4541 } 4542 4543 /** 4544 * qla4xxx_update_isid - compare ddbs and updated isid 4545 * @ha: Pointer to host adapter structure. 4546 * @list_nt: list of nt target 4547 * @fw_ddb_entry: firmware ddb entry 4548 * 4549 * This routine update isid if ddbs have same iqn, same isid and 4550 * different IP addr. 4551 * Return QLA_SUCCESS if isid is updated. 4552 **/ 4553 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 4554 struct list_head *list_nt, 4555 struct dev_db_entry *fw_ddb_entry) 4556 { 4557 uint8_t base_value, i; 4558 4559 base_value = fw_ddb_entry->isid[1] & 0x1f; 4560 for (i = 0; i < 8; i++) { 4561 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 4562 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 4563 break; 4564 } 4565 4566 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 4567 return QLA_ERROR; 4568 4569 return QLA_SUCCESS; 4570 } 4571 4572 /** 4573 * qla4xxx_should_update_isid - check if isid need to update 4574 * @ha: Pointer to host adapter structure. 4575 * @old_tddb: ddb tuple 4576 * @new_tddb: ddb tuple 4577 * 4578 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 4579 * same isid 4580 **/ 4581 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 4582 struct ql4_tuple_ddb *old_tddb, 4583 struct ql4_tuple_ddb *new_tddb) 4584 { 4585 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 4586 /* Same ip */ 4587 if (old_tddb->port == new_tddb->port) 4588 return QLA_ERROR; 4589 } 4590 4591 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 4592 /* different iqn */ 4593 return QLA_ERROR; 4594 4595 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 4596 sizeof(old_tddb->isid))) 4597 /* different isid */ 4598 return QLA_ERROR; 4599 4600 return QLA_SUCCESS; 4601 } 4602 4603 /** 4604 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 4605 * @ha: Pointer to host adapter structure. 4606 * @list_nt: list of nt target. 4607 * @fw_ddb_entry: firmware ddb entry. 4608 * 4609 * This routine check if fw_ddb_entry already exists in list_nt to avoid 4610 * duplicate ddb in list_nt. 4611 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 4612 * Note: This function also update isid of DDB if required. 4613 **/ 4614 4615 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 4616 struct list_head *list_nt, 4617 struct dev_db_entry *fw_ddb_entry) 4618 { 4619 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 4620 struct ql4_tuple_ddb *fw_tddb = NULL; 4621 struct ql4_tuple_ddb *tmp_tddb = NULL; 4622 int rval, ret = QLA_ERROR; 4623 4624 fw_tddb = vzalloc(sizeof(*fw_tddb)); 4625 if (!fw_tddb) { 4626 DEBUG2(ql4_printk(KERN_WARNING, ha, 4627 "Memory Allocation failed.\n")); 4628 ret = QLA_SUCCESS; 4629 goto exit_check; 4630 } 4631 4632 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 4633 if (!tmp_tddb) { 4634 DEBUG2(ql4_printk(KERN_WARNING, ha, 4635 "Memory Allocation failed.\n")); 4636 ret = QLA_SUCCESS; 4637 goto exit_check; 4638 } 4639 4640 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 4641 4642 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 4643 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 4644 nt_ddb_idx->flash_isid); 4645 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 4646 /* found duplicate ddb */ 4647 if (ret == QLA_SUCCESS) 4648 goto exit_check; 4649 } 4650 4651 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 4652 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 4653 4654 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 4655 if (ret == QLA_SUCCESS) { 4656 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 4657 if (rval == QLA_SUCCESS) 4658 ret = QLA_ERROR; 4659 else 4660 ret = QLA_SUCCESS; 4661 4662 goto exit_check; 4663 } 4664 } 4665 4666 exit_check: 4667 if (fw_tddb) 4668 vfree(fw_tddb); 4669 if (tmp_tddb) 4670 vfree(tmp_tddb); 4671 return ret; 4672 } 4673 4674 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 4675 { 4676 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 4677 4678 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 4679 list_del_init(&ddb_idx->list); 4680 vfree(ddb_idx); 4681 } 4682 } 4683 4684 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 4685 struct dev_db_entry *fw_ddb_entry) 4686 { 4687 struct iscsi_endpoint *ep; 4688 struct sockaddr_in *addr; 4689 struct sockaddr_in6 *addr6; 4690 struct sockaddr *t_addr; 4691 struct sockaddr_storage *dst_addr; 4692 char *ip; 4693 4694 /* TODO: need to destroy on unload iscsi_endpoint*/ 4695 dst_addr = vmalloc(sizeof(*dst_addr)); 4696 if (!dst_addr) 4697 return NULL; 4698 4699 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 4700 t_addr = (struct sockaddr *)dst_addr; 4701 t_addr->sa_family = AF_INET6; 4702 addr6 = (struct sockaddr_in6 *)dst_addr; 4703 ip = (char *)&addr6->sin6_addr; 4704 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 4705 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 4706 4707 } else { 4708 t_addr = (struct sockaddr *)dst_addr; 4709 t_addr->sa_family = AF_INET; 4710 addr = (struct sockaddr_in *)dst_addr; 4711 ip = (char *)&addr->sin_addr; 4712 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 4713 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 4714 } 4715 4716 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 4717 vfree(dst_addr); 4718 return ep; 4719 } 4720 4721 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 4722 { 4723 if (ql4xdisablesysfsboot) 4724 return QLA_SUCCESS; 4725 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 4726 return QLA_ERROR; 4727 return QLA_SUCCESS; 4728 } 4729 4730 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 4731 struct ddb_entry *ddb_entry) 4732 { 4733 uint16_t def_timeout; 4734 4735 ddb_entry->ddb_type = FLASH_DDB; 4736 ddb_entry->fw_ddb_index = INVALID_ENTRY; 4737 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 4738 ddb_entry->ha = ha; 4739 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 4740 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 4741 4742 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 4743 atomic_set(&ddb_entry->relogin_timer, 0); 4744 atomic_set(&ddb_entry->relogin_retry_count, 0); 4745 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 4746 ddb_entry->default_relogin_timeout = 4747 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 4748 def_timeout : LOGIN_TOV; 4749 ddb_entry->default_time2wait = 4750 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 4751 } 4752 4753 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 4754 { 4755 uint32_t idx = 0; 4756 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 4757 uint32_t sts[MBOX_REG_COUNT]; 4758 uint32_t ip_state; 4759 unsigned long wtime; 4760 int ret; 4761 4762 wtime = jiffies + (HZ * IP_CONFIG_TOV); 4763 do { 4764 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 4765 if (ip_idx[idx] == -1) 4766 continue; 4767 4768 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 4769 4770 if (ret == QLA_ERROR) { 4771 ip_idx[idx] = -1; 4772 continue; 4773 } 4774 4775 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 4776 4777 DEBUG2(ql4_printk(KERN_INFO, ha, 4778 "Waiting for IP state for idx = %d, state = 0x%x\n", 4779 ip_idx[idx], ip_state)); 4780 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 4781 ip_state == IP_ADDRSTATE_INVALID || 4782 ip_state == IP_ADDRSTATE_PREFERRED || 4783 ip_state == IP_ADDRSTATE_DEPRICATED || 4784 ip_state == IP_ADDRSTATE_DISABLING) 4785 ip_idx[idx] = -1; 4786 } 4787 4788 /* Break if all IP states checked */ 4789 if ((ip_idx[0] == -1) && 4790 (ip_idx[1] == -1) && 4791 (ip_idx[2] == -1) && 4792 (ip_idx[3] == -1)) 4793 break; 4794 schedule_timeout_uninterruptible(HZ); 4795 } while (time_after(wtime, jiffies)); 4796 } 4797 4798 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 4799 struct list_head *list_st) 4800 { 4801 struct qla_ddb_index *st_ddb_idx; 4802 int max_ddbs; 4803 int fw_idx_size; 4804 struct dev_db_entry *fw_ddb_entry; 4805 dma_addr_t fw_ddb_dma; 4806 int ret; 4807 uint32_t idx = 0, next_idx = 0; 4808 uint32_t state = 0, conn_err = 0; 4809 uint16_t conn_id = 0; 4810 4811 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 4812 &fw_ddb_dma); 4813 if (fw_ddb_entry == NULL) { 4814 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 4815 goto exit_st_list; 4816 } 4817 4818 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 4819 MAX_DEV_DB_ENTRIES; 4820 fw_idx_size = sizeof(struct qla_ddb_index); 4821 4822 for (idx = 0; idx < max_ddbs; idx = next_idx) { 4823 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 4824 NULL, &next_idx, &state, 4825 &conn_err, NULL, &conn_id); 4826 if (ret == QLA_ERROR) 4827 break; 4828 4829 /* Ignore DDB if invalid state (unassigned) */ 4830 if (state == DDB_DS_UNASSIGNED) 4831 goto continue_next_st; 4832 4833 /* Check if ST, add to the list_st */ 4834 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 4835 goto continue_next_st; 4836 4837 st_ddb_idx = vzalloc(fw_idx_size); 4838 if (!st_ddb_idx) 4839 break; 4840 4841 st_ddb_idx->fw_ddb_idx = idx; 4842 4843 list_add_tail(&st_ddb_idx->list, list_st); 4844 continue_next_st: 4845 if (next_idx == 0) 4846 break; 4847 } 4848 4849 exit_st_list: 4850 if (fw_ddb_entry) 4851 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 4852 } 4853 4854 /** 4855 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 4856 * @ha: pointer to adapter structure 4857 * @list_ddb: List from which failed ddb to be removed 4858 * 4859 * Iterate over the list of DDBs and find and remove DDBs that are either in 4860 * no connection active state or failed state 4861 **/ 4862 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 4863 struct list_head *list_ddb) 4864 { 4865 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 4866 uint32_t next_idx = 0; 4867 uint32_t state = 0, conn_err = 0; 4868 int ret; 4869 4870 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 4871 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 4872 NULL, 0, NULL, &next_idx, &state, 4873 &conn_err, NULL, NULL); 4874 if (ret == QLA_ERROR) 4875 continue; 4876 4877 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 4878 state == DDB_DS_SESSION_FAILED) { 4879 list_del_init(&ddb_idx->list); 4880 vfree(ddb_idx); 4881 } 4882 } 4883 } 4884 4885 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 4886 struct dev_db_entry *fw_ddb_entry, 4887 int is_reset) 4888 { 4889 struct iscsi_cls_session *cls_sess; 4890 struct iscsi_session *sess; 4891 struct iscsi_cls_conn *cls_conn; 4892 struct iscsi_endpoint *ep; 4893 uint16_t cmds_max = 32; 4894 uint16_t conn_id = 0; 4895 uint32_t initial_cmdsn = 0; 4896 int ret = QLA_SUCCESS; 4897 4898 struct ddb_entry *ddb_entry = NULL; 4899 4900 /* Create session object, with INVALID_ENTRY, 4901 * the targer_id would get set when we issue the login 4902 */ 4903 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 4904 cmds_max, sizeof(struct ddb_entry), 4905 sizeof(struct ql4_task_data), 4906 initial_cmdsn, INVALID_ENTRY); 4907 if (!cls_sess) { 4908 ret = QLA_ERROR; 4909 goto exit_setup; 4910 } 4911 4912 /* 4913 * so calling module_put function to decrement the 4914 * reference count. 4915 **/ 4916 module_put(qla4xxx_iscsi_transport.owner); 4917 sess = cls_sess->dd_data; 4918 ddb_entry = sess->dd_data; 4919 ddb_entry->sess = cls_sess; 4920 4921 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 4922 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 4923 sizeof(struct dev_db_entry)); 4924 4925 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry); 4926 4927 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 4928 4929 if (!cls_conn) { 4930 ret = QLA_ERROR; 4931 goto exit_setup; 4932 } 4933 4934 ddb_entry->conn = cls_conn; 4935 4936 /* Setup ep, for displaying attributes in sysfs */ 4937 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 4938 if (ep) { 4939 ep->conn = cls_conn; 4940 cls_conn->ep = ep; 4941 } else { 4942 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 4943 ret = QLA_ERROR; 4944 goto exit_setup; 4945 } 4946 4947 /* Update sess/conn params */ 4948 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 4949 4950 if (is_reset == RESET_ADAPTER) { 4951 iscsi_block_session(cls_sess); 4952 /* Use the relogin path to discover new devices 4953 * by short-circuting the logic of setting 4954 * timer to relogin - instead set the flags 4955 * to initiate login right away. 4956 */ 4957 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4958 set_bit(DF_RELOGIN, &ddb_entry->flags); 4959 } 4960 4961 exit_setup: 4962 return ret; 4963 } 4964 4965 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 4966 struct list_head *list_nt, int is_reset) 4967 { 4968 struct dev_db_entry *fw_ddb_entry; 4969 dma_addr_t fw_ddb_dma; 4970 int max_ddbs; 4971 int fw_idx_size; 4972 int ret; 4973 uint32_t idx = 0, next_idx = 0; 4974 uint32_t state = 0, conn_err = 0; 4975 uint16_t conn_id = 0; 4976 struct qla_ddb_index *nt_ddb_idx; 4977 4978 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 4979 &fw_ddb_dma); 4980 if (fw_ddb_entry == NULL) { 4981 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 4982 goto exit_nt_list; 4983 } 4984 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 4985 MAX_DEV_DB_ENTRIES; 4986 fw_idx_size = sizeof(struct qla_ddb_index); 4987 4988 for (idx = 0; idx < max_ddbs; idx = next_idx) { 4989 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 4990 NULL, &next_idx, &state, 4991 &conn_err, NULL, &conn_id); 4992 if (ret == QLA_ERROR) 4993 break; 4994 4995 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 4996 goto continue_next_nt; 4997 4998 /* Check if NT, then add to list it */ 4999 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 5000 goto continue_next_nt; 5001 5002 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 5003 state == DDB_DS_SESSION_FAILED)) 5004 goto continue_next_nt; 5005 5006 DEBUG2(ql4_printk(KERN_INFO, ha, 5007 "Adding DDB to session = 0x%x\n", idx)); 5008 if (is_reset == INIT_ADAPTER) { 5009 nt_ddb_idx = vmalloc(fw_idx_size); 5010 if (!nt_ddb_idx) 5011 break; 5012 5013 nt_ddb_idx->fw_ddb_idx = idx; 5014 5015 /* Copy original isid as it may get updated in function 5016 * qla4xxx_update_isid(). We need original isid in 5017 * function qla4xxx_compare_tuple_ddb to find duplicate 5018 * target */ 5019 memcpy(&nt_ddb_idx->flash_isid[0], 5020 &fw_ddb_entry->isid[0], 5021 sizeof(nt_ddb_idx->flash_isid)); 5022 5023 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 5024 fw_ddb_entry); 5025 if (ret == QLA_SUCCESS) { 5026 /* free nt_ddb_idx and do not add to list_nt */ 5027 vfree(nt_ddb_idx); 5028 goto continue_next_nt; 5029 } 5030 5031 /* Copy updated isid */ 5032 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 5033 sizeof(struct dev_db_entry)); 5034 5035 list_add_tail(&nt_ddb_idx->list, list_nt); 5036 } else if (is_reset == RESET_ADAPTER) { 5037 if (qla4xxx_is_session_exists(ha, fw_ddb_entry) == 5038 QLA_SUCCESS) 5039 goto continue_next_nt; 5040 } 5041 5042 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset); 5043 if (ret == QLA_ERROR) 5044 goto exit_nt_list; 5045 5046 continue_next_nt: 5047 if (next_idx == 0) 5048 break; 5049 } 5050 5051 exit_nt_list: 5052 if (fw_ddb_entry) 5053 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 5054 } 5055 5056 /** 5057 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 5058 * @ha: pointer to adapter structure 5059 * @is_reset: Is this init path or reset path 5060 * 5061 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 5062 * using connection open, then create the list of normal targets (nt) 5063 * from firmware DDBs. Based on the list of nt setup session and connection 5064 * objects. 5065 **/ 5066 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 5067 { 5068 uint16_t tmo = 0; 5069 struct list_head list_st, list_nt; 5070 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 5071 unsigned long wtime; 5072 5073 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5074 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 5075 ha->is_reset = is_reset; 5076 return; 5077 } 5078 5079 INIT_LIST_HEAD(&list_st); 5080 INIT_LIST_HEAD(&list_nt); 5081 5082 qla4xxx_build_st_list(ha, &list_st); 5083 5084 /* Before issuing conn open mbox, ensure all IPs states are configured 5085 * Note, conn open fails if IPs are not configured 5086 */ 5087 qla4xxx_wait_for_ip_configuration(ha); 5088 5089 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 5090 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 5091 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 5092 } 5093 5094 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 5095 tmo = ((ha->def_timeout > LOGIN_TOV) && 5096 (ha->def_timeout < LOGIN_TOV * 10) ? 5097 ha->def_timeout : LOGIN_TOV); 5098 5099 DEBUG2(ql4_printk(KERN_INFO, ha, 5100 "Default time to wait for build ddb %d\n", tmo)); 5101 5102 wtime = jiffies + (HZ * tmo); 5103 do { 5104 if (list_empty(&list_st)) 5105 break; 5106 5107 qla4xxx_remove_failed_ddb(ha, &list_st); 5108 schedule_timeout_uninterruptible(HZ / 10); 5109 } while (time_after(wtime, jiffies)); 5110 5111 /* Free up the sendtargets list */ 5112 qla4xxx_free_ddb_list(&list_st); 5113 5114 qla4xxx_build_nt_list(ha, &list_nt, is_reset); 5115 5116 qla4xxx_free_ddb_list(&list_nt); 5117 5118 qla4xxx_free_ddb_index(ha); 5119 } 5120 5121 /** 5122 * qla4xxx_probe_adapter - callback function to probe HBA 5123 * @pdev: pointer to pci_dev structure 5124 * @pci_device_id: pointer to pci_device entry 5125 * 5126 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 5127 * It returns zero if successful. It also initializes all data necessary for 5128 * the driver. 5129 **/ 5130 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 5131 const struct pci_device_id *ent) 5132 { 5133 int ret = -ENODEV, status; 5134 struct Scsi_Host *host; 5135 struct scsi_qla_host *ha; 5136 uint8_t init_retry_count = 0; 5137 char buf[34]; 5138 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 5139 uint32_t dev_state; 5140 5141 if (pci_enable_device(pdev)) 5142 return -1; 5143 5144 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 5145 if (host == NULL) { 5146 printk(KERN_WARNING 5147 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 5148 goto probe_disable_device; 5149 } 5150 5151 /* Clear our data area */ 5152 ha = to_qla_host(host); 5153 memset(ha, 0, sizeof(*ha)); 5154 5155 /* Save the information from PCI BIOS. */ 5156 ha->pdev = pdev; 5157 ha->host = host; 5158 ha->host_no = host->host_no; 5159 ha->func_num = PCI_FUNC(ha->pdev->devfn); 5160 5161 pci_enable_pcie_error_reporting(pdev); 5162 5163 /* Setup Runtime configurable options */ 5164 if (is_qla8022(ha)) { 5165 ha->isp_ops = &qla4_82xx_isp_ops; 5166 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 5167 ha->qdr_sn_window = -1; 5168 ha->ddr_mn_window = -1; 5169 ha->curr_window = 255; 5170 nx_legacy_intr = &legacy_intr[ha->func_num]; 5171 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 5172 ha->nx_legacy_intr.tgt_status_reg = 5173 nx_legacy_intr->tgt_status_reg; 5174 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 5175 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 5176 } else if (is_qla8032(ha)) { 5177 ha->isp_ops = &qla4_83xx_isp_ops; 5178 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 5179 } else { 5180 ha->isp_ops = &qla4xxx_isp_ops; 5181 } 5182 5183 if (is_qla80XX(ha)) { 5184 rwlock_init(&ha->hw_lock); 5185 ha->pf_bit = ha->func_num << 16; 5186 /* Set EEH reset type to fundamental if required by hba */ 5187 pdev->needs_freset = 1; 5188 } 5189 5190 /* Configure PCI I/O space. */ 5191 ret = ha->isp_ops->iospace_config(ha); 5192 if (ret) 5193 goto probe_failed_ioconfig; 5194 5195 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 5196 pdev->device, pdev->irq, ha->reg); 5197 5198 qla4xxx_config_dma_addressing(ha); 5199 5200 /* Initialize lists and spinlocks. */ 5201 INIT_LIST_HEAD(&ha->free_srb_q); 5202 5203 mutex_init(&ha->mbox_sem); 5204 mutex_init(&ha->chap_sem); 5205 init_completion(&ha->mbx_intr_comp); 5206 init_completion(&ha->disable_acb_comp); 5207 5208 spin_lock_init(&ha->hardware_lock); 5209 spin_lock_init(&ha->work_lock); 5210 5211 /* Initialize work list */ 5212 INIT_LIST_HEAD(&ha->work_list); 5213 5214 /* Allocate dma buffers */ 5215 if (qla4xxx_mem_alloc(ha)) { 5216 ql4_printk(KERN_WARNING, ha, 5217 "[ERROR] Failed to allocate memory for adapter\n"); 5218 5219 ret = -ENOMEM; 5220 goto probe_failed; 5221 } 5222 5223 host->cmd_per_lun = 3; 5224 host->max_channel = 0; 5225 host->max_lun = MAX_LUNS - 1; 5226 host->max_id = MAX_TARGETS; 5227 host->max_cmd_len = IOCB_MAX_CDB_LEN; 5228 host->can_queue = MAX_SRBS ; 5229 host->transportt = qla4xxx_scsi_transport; 5230 5231 ret = scsi_init_shared_tag_map(host, MAX_SRBS); 5232 if (ret) { 5233 ql4_printk(KERN_WARNING, ha, 5234 "%s: scsi_init_shared_tag_map failed\n", __func__); 5235 goto probe_failed; 5236 } 5237 5238 pci_set_drvdata(pdev, ha); 5239 5240 ret = scsi_add_host(host, &pdev->dev); 5241 if (ret) 5242 goto probe_failed; 5243 5244 if (is_qla80XX(ha)) 5245 qla4_8xxx_get_flash_info(ha); 5246 5247 if (is_qla8032(ha)) { 5248 qla4_83xx_read_reset_template(ha); 5249 /* 5250 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 5251 * If DONRESET_BIT0 is set, drivers should not set dev_state 5252 * to NEED_RESET. But if NEED_RESET is set, drivers should 5253 * should honor the reset. 5254 */ 5255 if (ql4xdontresethba == 1) 5256 qla4_83xx_set_idc_dontreset(ha); 5257 } 5258 5259 /* 5260 * Initialize the Host adapter request/response queues and 5261 * firmware 5262 * NOTE: interrupts enabled upon successful completion 5263 */ 5264 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 5265 5266 /* Dont retry adapter initialization if IRQ allocation failed */ 5267 if (!test_bit(AF_IRQ_ATTACHED, &ha->flags)) 5268 goto skip_retry_init; 5269 5270 while ((!test_bit(AF_ONLINE, &ha->flags)) && 5271 init_retry_count++ < MAX_INIT_RETRIES) { 5272 5273 if (is_qla80XX(ha)) { 5274 ha->isp_ops->idc_lock(ha); 5275 dev_state = qla4_8xxx_rd_direct(ha, 5276 QLA8XXX_CRB_DEV_STATE); 5277 ha->isp_ops->idc_unlock(ha); 5278 if (dev_state == QLA8XXX_DEV_FAILED) { 5279 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 5280 "initialize adapter. H/W is in failed state\n", 5281 __func__); 5282 break; 5283 } 5284 } 5285 DEBUG2(printk("scsi: %s: retrying adapter initialization " 5286 "(%d)\n", __func__, init_retry_count)); 5287 5288 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 5289 continue; 5290 5291 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 5292 } 5293 5294 skip_retry_init: 5295 if (!test_bit(AF_ONLINE, &ha->flags)) { 5296 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 5297 5298 if ((is_qla8022(ha) && ql4xdontresethba) || 5299 (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) { 5300 /* Put the device in failed state. */ 5301 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 5302 ha->isp_ops->idc_lock(ha); 5303 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5304 QLA8XXX_DEV_FAILED); 5305 ha->isp_ops->idc_unlock(ha); 5306 } 5307 ret = -ENODEV; 5308 goto remove_host; 5309 } 5310 5311 /* Startup the kernel thread for this host adapter. */ 5312 DEBUG2(printk("scsi: %s: Starting kernel thread for " 5313 "qla4xxx_dpc\n", __func__)); 5314 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 5315 ha->dpc_thread = create_singlethread_workqueue(buf); 5316 if (!ha->dpc_thread) { 5317 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 5318 ret = -ENODEV; 5319 goto remove_host; 5320 } 5321 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 5322 5323 sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 5324 ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 5325 if (!ha->task_wq) { 5326 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 5327 ret = -ENODEV; 5328 goto remove_host; 5329 } 5330 5331 /* 5332 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 5333 * (which is called indirectly by qla4xxx_initialize_adapter), 5334 * so that irqs will be registered after crbinit but before 5335 * mbx_intr_enable. 5336 */ 5337 if (is_qla40XX(ha)) { 5338 ret = qla4xxx_request_irqs(ha); 5339 if (ret) { 5340 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 5341 "interrupt %d already in use.\n", pdev->irq); 5342 goto remove_host; 5343 } 5344 } 5345 5346 pci_save_state(ha->pdev); 5347 ha->isp_ops->enable_intrs(ha); 5348 5349 /* Start timer thread. */ 5350 qla4xxx_start_timer(ha, qla4xxx_timer, 1); 5351 5352 set_bit(AF_INIT_DONE, &ha->flags); 5353 5354 qla4_8xxx_alloc_sysfs_attr(ha); 5355 5356 printk(KERN_INFO 5357 " QLogic iSCSI HBA Driver version: %s\n" 5358 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 5359 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 5360 ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 5361 ha->patch_number, ha->build_number); 5362 5363 /* Set the driver version */ 5364 if (is_qla80XX(ha)) 5365 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 5366 5367 if (qla4xxx_setup_boot_info(ha)) 5368 ql4_printk(KERN_ERR, ha, 5369 "%s: No iSCSI boot target configured\n", __func__); 5370 5371 /* Perform the build ddb list and login to each */ 5372 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 5373 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 5374 5375 qla4xxx_create_chap_list(ha); 5376 5377 qla4xxx_create_ifaces(ha); 5378 return 0; 5379 5380 remove_host: 5381 scsi_remove_host(ha->host); 5382 5383 probe_failed: 5384 qla4xxx_free_adapter(ha); 5385 5386 probe_failed_ioconfig: 5387 pci_disable_pcie_error_reporting(pdev); 5388 scsi_host_put(ha->host); 5389 5390 probe_disable_device: 5391 pci_disable_device(pdev); 5392 5393 return ret; 5394 } 5395 5396 /** 5397 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 5398 * @ha: pointer to adapter structure 5399 * 5400 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 5401 * so that the other port will not re-initialize while in the process of 5402 * removing the ha due to driver unload or hba hotplug. 5403 **/ 5404 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 5405 { 5406 struct scsi_qla_host *other_ha = NULL; 5407 struct pci_dev *other_pdev = NULL; 5408 int fn = ISP4XXX_PCI_FN_2; 5409 5410 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 5411 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 5412 fn = ISP4XXX_PCI_FN_1; 5413 5414 other_pdev = 5415 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 5416 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 5417 fn)); 5418 5419 /* Get other_ha if other_pdev is valid and state is enable*/ 5420 if (other_pdev) { 5421 if (atomic_read(&other_pdev->enable_cnt)) { 5422 other_ha = pci_get_drvdata(other_pdev); 5423 if (other_ha) { 5424 set_bit(AF_HA_REMOVAL, &other_ha->flags); 5425 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 5426 "Prevent %s reinit\n", __func__, 5427 dev_name(&other_ha->pdev->dev))); 5428 } 5429 } 5430 pci_dev_put(other_pdev); 5431 } 5432 } 5433 5434 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 5435 { 5436 struct ddb_entry *ddb_entry; 5437 int options; 5438 int idx; 5439 5440 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 5441 5442 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 5443 if ((ddb_entry != NULL) && 5444 (ddb_entry->ddb_type == FLASH_DDB)) { 5445 5446 options = LOGOUT_OPTION_CLOSE_SESSION; 5447 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) 5448 == QLA_ERROR) 5449 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", 5450 __func__); 5451 5452 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 5453 /* 5454 * we have decremented the reference count of the driver 5455 * when we setup the session to have the driver unload 5456 * to be seamless without actually destroying the 5457 * session 5458 **/ 5459 try_module_get(qla4xxx_iscsi_transport.owner); 5460 iscsi_destroy_endpoint(ddb_entry->conn->ep); 5461 qla4xxx_free_ddb(ha, ddb_entry); 5462 iscsi_session_teardown(ddb_entry->sess); 5463 } 5464 } 5465 } 5466 /** 5467 * qla4xxx_remove_adapter - callback function to remove adapter. 5468 * @pci_dev: PCI device pointer 5469 **/ 5470 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 5471 { 5472 struct scsi_qla_host *ha; 5473 5474 /* 5475 * If the PCI device is disabled then it means probe_adapter had 5476 * failed and resources already cleaned up on probe_adapter exit. 5477 */ 5478 if (!pci_is_enabled(pdev)) 5479 return; 5480 5481 ha = pci_get_drvdata(pdev); 5482 5483 if (is_qla40XX(ha)) 5484 qla4xxx_prevent_other_port_reinit(ha); 5485 5486 /* destroy iface from sysfs */ 5487 qla4xxx_destroy_ifaces(ha); 5488 5489 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 5490 iscsi_boot_destroy_kset(ha->boot_kset); 5491 5492 qla4xxx_destroy_fw_ddb_session(ha); 5493 qla4_8xxx_free_sysfs_attr(ha); 5494 5495 scsi_remove_host(ha->host); 5496 5497 qla4xxx_free_adapter(ha); 5498 5499 scsi_host_put(ha->host); 5500 5501 pci_disable_pcie_error_reporting(pdev); 5502 pci_disable_device(pdev); 5503 pci_set_drvdata(pdev, NULL); 5504 } 5505 5506 /** 5507 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 5508 * @ha: HA context 5509 * 5510 * At exit, the @ha's flags.enable_64bit_addressing set to indicated 5511 * supported addressing method. 5512 */ 5513 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 5514 { 5515 int retval; 5516 5517 /* Update our PCI device dma_mask for full 64 bit mask */ 5518 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 5519 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 5520 dev_dbg(&ha->pdev->dev, 5521 "Failed to set 64 bit PCI consistent mask; " 5522 "using 32 bit.\n"); 5523 retval = pci_set_consistent_dma_mask(ha->pdev, 5524 DMA_BIT_MASK(32)); 5525 } 5526 } else 5527 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 5528 } 5529 5530 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 5531 { 5532 struct iscsi_cls_session *cls_sess; 5533 struct iscsi_session *sess; 5534 struct ddb_entry *ddb; 5535 int queue_depth = QL4_DEF_QDEPTH; 5536 5537 cls_sess = starget_to_session(sdev->sdev_target); 5538 sess = cls_sess->dd_data; 5539 ddb = sess->dd_data; 5540 5541 sdev->hostdata = ddb; 5542 sdev->tagged_supported = 1; 5543 5544 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 5545 queue_depth = ql4xmaxqdepth; 5546 5547 scsi_activate_tcq(sdev, queue_depth); 5548 return 0; 5549 } 5550 5551 static int qla4xxx_slave_configure(struct scsi_device *sdev) 5552 { 5553 sdev->tagged_supported = 1; 5554 return 0; 5555 } 5556 5557 static void qla4xxx_slave_destroy(struct scsi_device *sdev) 5558 { 5559 scsi_deactivate_tcq(sdev, 1); 5560 } 5561 5562 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 5563 int reason) 5564 { 5565 if (!ql4xqfulltracking) 5566 return -EOPNOTSUPP; 5567 5568 return iscsi_change_queue_depth(sdev, qdepth, reason); 5569 } 5570 5571 /** 5572 * qla4xxx_del_from_active_array - returns an active srb 5573 * @ha: Pointer to host adapter structure. 5574 * @index: index into the active_array 5575 * 5576 * This routine removes and returns the srb at the specified index 5577 **/ 5578 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 5579 uint32_t index) 5580 { 5581 struct srb *srb = NULL; 5582 struct scsi_cmnd *cmd = NULL; 5583 5584 cmd = scsi_host_find_tag(ha->host, index); 5585 if (!cmd) 5586 return srb; 5587 5588 srb = (struct srb *)CMD_SP(cmd); 5589 if (!srb) 5590 return srb; 5591 5592 /* update counters */ 5593 if (srb->flags & SRB_DMA_VALID) { 5594 ha->req_q_count += srb->iocb_cnt; 5595 ha->iocb_cnt -= srb->iocb_cnt; 5596 if (srb->cmd) 5597 srb->cmd->host_scribble = 5598 (unsigned char *)(unsigned long) MAX_SRBS; 5599 } 5600 return srb; 5601 } 5602 5603 /** 5604 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 5605 * @ha: Pointer to host adapter structure. 5606 * @cmd: Scsi Command to wait on. 5607 * 5608 * This routine waits for the command to be returned by the Firmware 5609 * for some max time. 5610 **/ 5611 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 5612 struct scsi_cmnd *cmd) 5613 { 5614 int done = 0; 5615 struct srb *rp; 5616 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 5617 int ret = SUCCESS; 5618 5619 /* Dont wait on command if PCI error is being handled 5620 * by PCI AER driver 5621 */ 5622 if (unlikely(pci_channel_offline(ha->pdev)) || 5623 (test_bit(AF_EEH_BUSY, &ha->flags))) { 5624 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 5625 ha->host_no, __func__); 5626 return ret; 5627 } 5628 5629 do { 5630 /* Checking to see if its returned to OS */ 5631 rp = (struct srb *) CMD_SP(cmd); 5632 if (rp == NULL) { 5633 done++; 5634 break; 5635 } 5636 5637 msleep(2000); 5638 } while (max_wait_time--); 5639 5640 return done; 5641 } 5642 5643 /** 5644 * qla4xxx_wait_for_hba_online - waits for HBA to come online 5645 * @ha: Pointer to host adapter structure 5646 **/ 5647 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 5648 { 5649 unsigned long wait_online; 5650 5651 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 5652 while (time_before(jiffies, wait_online)) { 5653 5654 if (adapter_up(ha)) 5655 return QLA_SUCCESS; 5656 5657 msleep(2000); 5658 } 5659 5660 return QLA_ERROR; 5661 } 5662 5663 /** 5664 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 5665 * @ha: pointer to HBA 5666 * @t: target id 5667 * @l: lun id 5668 * 5669 * This function waits for all outstanding commands to a lun to complete. It 5670 * returns 0 if all pending commands are returned and 1 otherwise. 5671 **/ 5672 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 5673 struct scsi_target *stgt, 5674 struct scsi_device *sdev) 5675 { 5676 int cnt; 5677 int status = 0; 5678 struct scsi_cmnd *cmd; 5679 5680 /* 5681 * Waiting for all commands for the designated target or dev 5682 * in the active array 5683 */ 5684 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 5685 cmd = scsi_host_find_tag(ha->host, cnt); 5686 if (cmd && stgt == scsi_target(cmd->device) && 5687 (!sdev || sdev == cmd->device)) { 5688 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 5689 status++; 5690 break; 5691 } 5692 } 5693 } 5694 return status; 5695 } 5696 5697 /** 5698 * qla4xxx_eh_abort - callback for abort task. 5699 * @cmd: Pointer to Linux's SCSI command structure 5700 * 5701 * This routine is called by the Linux OS to abort the specified 5702 * command. 5703 **/ 5704 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 5705 { 5706 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5707 unsigned int id = cmd->device->id; 5708 unsigned int lun = cmd->device->lun; 5709 unsigned long flags; 5710 struct srb *srb = NULL; 5711 int ret = SUCCESS; 5712 int wait = 0; 5713 5714 ql4_printk(KERN_INFO, ha, 5715 "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 5716 ha->host_no, id, lun, cmd); 5717 5718 spin_lock_irqsave(&ha->hardware_lock, flags); 5719 srb = (struct srb *) CMD_SP(cmd); 5720 if (!srb) { 5721 spin_unlock_irqrestore(&ha->hardware_lock, flags); 5722 return SUCCESS; 5723 } 5724 kref_get(&srb->srb_ref); 5725 spin_unlock_irqrestore(&ha->hardware_lock, flags); 5726 5727 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 5728 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 5729 ha->host_no, id, lun)); 5730 ret = FAILED; 5731 } else { 5732 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 5733 ha->host_no, id, lun)); 5734 wait = 1; 5735 } 5736 5737 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 5738 5739 /* Wait for command to complete */ 5740 if (wait) { 5741 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 5742 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 5743 ha->host_no, id, lun)); 5744 ret = FAILED; 5745 } 5746 } 5747 5748 ql4_printk(KERN_INFO, ha, 5749 "scsi%ld:%d:%d: Abort command - %s\n", 5750 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 5751 5752 return ret; 5753 } 5754 5755 /** 5756 * qla4xxx_eh_device_reset - callback for target reset. 5757 * @cmd: Pointer to Linux's SCSI command structure 5758 * 5759 * This routine is called by the Linux OS to reset all luns on the 5760 * specified target. 5761 **/ 5762 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 5763 { 5764 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5765 struct ddb_entry *ddb_entry = cmd->device->hostdata; 5766 int ret = FAILED, stat; 5767 5768 if (!ddb_entry) 5769 return ret; 5770 5771 ret = iscsi_block_scsi_eh(cmd); 5772 if (ret) 5773 return ret; 5774 ret = FAILED; 5775 5776 ql4_printk(KERN_INFO, ha, 5777 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 5778 cmd->device->channel, cmd->device->id, cmd->device->lun); 5779 5780 DEBUG2(printk(KERN_INFO 5781 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 5782 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 5783 cmd, jiffies, cmd->request->timeout / HZ, 5784 ha->dpc_flags, cmd->result, cmd->allowed)); 5785 5786 /* FIXME: wait for hba to go online */ 5787 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 5788 if (stat != QLA_SUCCESS) { 5789 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 5790 goto eh_dev_reset_done; 5791 } 5792 5793 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5794 cmd->device)) { 5795 ql4_printk(KERN_INFO, ha, 5796 "DEVICE RESET FAILED - waiting for " 5797 "commands.\n"); 5798 goto eh_dev_reset_done; 5799 } 5800 5801 /* Send marker. */ 5802 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 5803 MM_LUN_RESET) != QLA_SUCCESS) 5804 goto eh_dev_reset_done; 5805 5806 ql4_printk(KERN_INFO, ha, 5807 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 5808 ha->host_no, cmd->device->channel, cmd->device->id, 5809 cmd->device->lun); 5810 5811 ret = SUCCESS; 5812 5813 eh_dev_reset_done: 5814 5815 return ret; 5816 } 5817 5818 /** 5819 * qla4xxx_eh_target_reset - callback for target reset. 5820 * @cmd: Pointer to Linux's SCSI command structure 5821 * 5822 * This routine is called by the Linux OS to reset the target. 5823 **/ 5824 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 5825 { 5826 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5827 struct ddb_entry *ddb_entry = cmd->device->hostdata; 5828 int stat, ret; 5829 5830 if (!ddb_entry) 5831 return FAILED; 5832 5833 ret = iscsi_block_scsi_eh(cmd); 5834 if (ret) 5835 return ret; 5836 5837 starget_printk(KERN_INFO, scsi_target(cmd->device), 5838 "WARM TARGET RESET ISSUED.\n"); 5839 5840 DEBUG2(printk(KERN_INFO 5841 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 5842 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 5843 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 5844 ha->dpc_flags, cmd->result, cmd->allowed)); 5845 5846 stat = qla4xxx_reset_target(ha, ddb_entry); 5847 if (stat != QLA_SUCCESS) { 5848 starget_printk(KERN_INFO, scsi_target(cmd->device), 5849 "WARM TARGET RESET FAILED.\n"); 5850 return FAILED; 5851 } 5852 5853 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5854 NULL)) { 5855 starget_printk(KERN_INFO, scsi_target(cmd->device), 5856 "WARM TARGET DEVICE RESET FAILED - " 5857 "waiting for commands.\n"); 5858 return FAILED; 5859 } 5860 5861 /* Send marker. */ 5862 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 5863 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 5864 starget_printk(KERN_INFO, scsi_target(cmd->device), 5865 "WARM TARGET DEVICE RESET FAILED - " 5866 "marker iocb failed.\n"); 5867 return FAILED; 5868 } 5869 5870 starget_printk(KERN_INFO, scsi_target(cmd->device), 5871 "WARM TARGET RESET SUCCEEDED.\n"); 5872 return SUCCESS; 5873 } 5874 5875 /** 5876 * qla4xxx_is_eh_active - check if error handler is running 5877 * @shost: Pointer to SCSI Host struct 5878 * 5879 * This routine finds that if reset host is called in EH 5880 * scenario or from some application like sg_reset 5881 **/ 5882 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 5883 { 5884 if (shost->shost_state == SHOST_RECOVERY) 5885 return 1; 5886 return 0; 5887 } 5888 5889 /** 5890 * qla4xxx_eh_host_reset - kernel callback 5891 * @cmd: Pointer to Linux's SCSI command structure 5892 * 5893 * This routine is invoked by the Linux kernel to perform fatal error 5894 * recovery on the specified adapter. 5895 **/ 5896 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 5897 { 5898 int return_status = FAILED; 5899 struct scsi_qla_host *ha; 5900 5901 ha = to_qla_host(cmd->device->host); 5902 5903 if (is_qla8032(ha) && ql4xdontresethba) 5904 qla4_83xx_set_idc_dontreset(ha); 5905 5906 /* 5907 * For ISP8324, if IDC_CTRL DONTRESET_BIT0 is set by other 5908 * protocol drivers, we should not set device_state to 5909 * NEED_RESET 5910 */ 5911 if (ql4xdontresethba || 5912 (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) { 5913 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5914 ha->host_no, __func__)); 5915 5916 /* Clear outstanding srb in queues */ 5917 if (qla4xxx_is_eh_active(cmd->device->host)) 5918 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 5919 5920 return FAILED; 5921 } 5922 5923 ql4_printk(KERN_INFO, ha, 5924 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 5925 cmd->device->channel, cmd->device->id, cmd->device->lun); 5926 5927 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 5928 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 5929 "DEAD.\n", ha->host_no, cmd->device->channel, 5930 __func__)); 5931 5932 return FAILED; 5933 } 5934 5935 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 5936 if (is_qla80XX(ha)) 5937 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5938 else 5939 set_bit(DPC_RESET_HA, &ha->dpc_flags); 5940 } 5941 5942 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 5943 return_status = SUCCESS; 5944 5945 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 5946 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 5947 5948 return return_status; 5949 } 5950 5951 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 5952 { 5953 uint32_t mbox_cmd[MBOX_REG_COUNT]; 5954 uint32_t mbox_sts[MBOX_REG_COUNT]; 5955 struct addr_ctrl_blk_def *acb = NULL; 5956 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 5957 int rval = QLA_SUCCESS; 5958 dma_addr_t acb_dma; 5959 5960 acb = dma_alloc_coherent(&ha->pdev->dev, 5961 sizeof(struct addr_ctrl_blk_def), 5962 &acb_dma, GFP_KERNEL); 5963 if (!acb) { 5964 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 5965 __func__); 5966 rval = -ENOMEM; 5967 goto exit_port_reset; 5968 } 5969 5970 memset(acb, 0, acb_len); 5971 5972 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 5973 if (rval != QLA_SUCCESS) { 5974 rval = -EIO; 5975 goto exit_free_acb; 5976 } 5977 5978 rval = qla4xxx_disable_acb(ha); 5979 if (rval != QLA_SUCCESS) { 5980 rval = -EIO; 5981 goto exit_free_acb; 5982 } 5983 5984 wait_for_completion_timeout(&ha->disable_acb_comp, 5985 DISABLE_ACB_TOV * HZ); 5986 5987 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 5988 if (rval != QLA_SUCCESS) { 5989 rval = -EIO; 5990 goto exit_free_acb; 5991 } 5992 5993 exit_free_acb: 5994 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 5995 acb, acb_dma); 5996 exit_port_reset: 5997 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 5998 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 5999 return rval; 6000 } 6001 6002 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 6003 { 6004 struct scsi_qla_host *ha = to_qla_host(shost); 6005 int rval = QLA_SUCCESS; 6006 6007 if (ql4xdontresethba) { 6008 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 6009 __func__)); 6010 rval = -EPERM; 6011 goto exit_host_reset; 6012 } 6013 6014 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 6015 goto recover_adapter; 6016 6017 switch (reset_type) { 6018 case SCSI_ADAPTER_RESET: 6019 set_bit(DPC_RESET_HA, &ha->dpc_flags); 6020 break; 6021 case SCSI_FIRMWARE_RESET: 6022 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 6023 if (is_qla80XX(ha)) 6024 /* set firmware context reset */ 6025 set_bit(DPC_RESET_HA_FW_CONTEXT, 6026 &ha->dpc_flags); 6027 else { 6028 rval = qla4xxx_context_reset(ha); 6029 goto exit_host_reset; 6030 } 6031 } 6032 break; 6033 } 6034 6035 recover_adapter: 6036 rval = qla4xxx_recover_adapter(ha); 6037 if (rval != QLA_SUCCESS) { 6038 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 6039 __func__)); 6040 rval = -EIO; 6041 } 6042 6043 exit_host_reset: 6044 return rval; 6045 } 6046 6047 /* PCI AER driver recovers from all correctable errors w/o 6048 * driver intervention. For uncorrectable errors PCI AER 6049 * driver calls the following device driver's callbacks 6050 * 6051 * - Fatal Errors - link_reset 6052 * - Non-Fatal Errors - driver's pci_error_detected() which 6053 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 6054 * 6055 * PCI AER driver calls 6056 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 6057 * returns RECOVERED or NEED_RESET if fw_hung 6058 * NEED_RESET - driver's slot_reset() 6059 * DISCONNECT - device is dead & cannot recover 6060 * RECOVERED - driver's pci_resume() 6061 */ 6062 static pci_ers_result_t 6063 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 6064 { 6065 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 6066 6067 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 6068 ha->host_no, __func__, state); 6069 6070 if (!is_aer_supported(ha)) 6071 return PCI_ERS_RESULT_NONE; 6072 6073 switch (state) { 6074 case pci_channel_io_normal: 6075 clear_bit(AF_EEH_BUSY, &ha->flags); 6076 return PCI_ERS_RESULT_CAN_RECOVER; 6077 case pci_channel_io_frozen: 6078 set_bit(AF_EEH_BUSY, &ha->flags); 6079 qla4xxx_mailbox_premature_completion(ha); 6080 qla4xxx_free_irqs(ha); 6081 pci_disable_device(pdev); 6082 /* Return back all IOs */ 6083 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 6084 return PCI_ERS_RESULT_NEED_RESET; 6085 case pci_channel_io_perm_failure: 6086 set_bit(AF_EEH_BUSY, &ha->flags); 6087 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 6088 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 6089 return PCI_ERS_RESULT_DISCONNECT; 6090 } 6091 return PCI_ERS_RESULT_NEED_RESET; 6092 } 6093 6094 /** 6095 * qla4xxx_pci_mmio_enabled() gets called if 6096 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 6097 * and read/write to the device still works. 6098 **/ 6099 static pci_ers_result_t 6100 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 6101 { 6102 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 6103 6104 if (!is_aer_supported(ha)) 6105 return PCI_ERS_RESULT_NONE; 6106 6107 return PCI_ERS_RESULT_RECOVERED; 6108 } 6109 6110 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 6111 { 6112 uint32_t rval = QLA_ERROR; 6113 uint32_t ret = 0; 6114 int fn; 6115 struct pci_dev *other_pdev = NULL; 6116 6117 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 6118 6119 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 6120 6121 if (test_bit(AF_ONLINE, &ha->flags)) { 6122 clear_bit(AF_ONLINE, &ha->flags); 6123 clear_bit(AF_LINK_UP, &ha->flags); 6124 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 6125 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 6126 } 6127 6128 fn = PCI_FUNC(ha->pdev->devfn); 6129 while (fn > 0) { 6130 fn--; 6131 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 6132 "func %x\n", ha->host_no, __func__, fn); 6133 /* Get the pci device given the domain, bus, 6134 * slot/function number */ 6135 other_pdev = 6136 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 6137 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 6138 fn)); 6139 6140 if (!other_pdev) 6141 continue; 6142 6143 if (atomic_read(&other_pdev->enable_cnt)) { 6144 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 6145 "func in enabled state%x\n", ha->host_no, 6146 __func__, fn); 6147 pci_dev_put(other_pdev); 6148 break; 6149 } 6150 pci_dev_put(other_pdev); 6151 } 6152 6153 /* The first function on the card, the reset owner will 6154 * start & initialize the firmware. The other functions 6155 * on the card will reset the firmware context 6156 */ 6157 if (!fn) { 6158 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 6159 "0x%x is the owner\n", ha->host_no, __func__, 6160 ha->pdev->devfn); 6161 6162 ha->isp_ops->idc_lock(ha); 6163 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 6164 QLA8XXX_DEV_COLD); 6165 ha->isp_ops->idc_unlock(ha); 6166 6167 rval = qla4_8xxx_update_idc_reg(ha); 6168 if (rval == QLA_ERROR) { 6169 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 6170 ha->host_no, __func__); 6171 ha->isp_ops->idc_lock(ha); 6172 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 6173 QLA8XXX_DEV_FAILED); 6174 ha->isp_ops->idc_unlock(ha); 6175 goto exit_error_recovery; 6176 } 6177 6178 clear_bit(AF_FW_RECOVERY, &ha->flags); 6179 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 6180 6181 if (rval != QLA_SUCCESS) { 6182 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 6183 "FAILED\n", ha->host_no, __func__); 6184 ha->isp_ops->idc_lock(ha); 6185 qla4_8xxx_clear_drv_active(ha); 6186 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 6187 QLA8XXX_DEV_FAILED); 6188 ha->isp_ops->idc_unlock(ha); 6189 } else { 6190 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 6191 "READY\n", ha->host_no, __func__); 6192 ha->isp_ops->idc_lock(ha); 6193 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 6194 QLA8XXX_DEV_READY); 6195 /* Clear driver state register */ 6196 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 6197 qla4_8xxx_set_drv_active(ha); 6198 ha->isp_ops->idc_unlock(ha); 6199 ret = qla4xxx_request_irqs(ha); 6200 if (ret) { 6201 ql4_printk(KERN_WARNING, ha, "Failed to " 6202 "reserve interrupt %d already in use.\n", 6203 ha->pdev->irq); 6204 rval = QLA_ERROR; 6205 } else { 6206 ha->isp_ops->enable_intrs(ha); 6207 rval = QLA_SUCCESS; 6208 } 6209 } 6210 } else { 6211 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 6212 "the reset owner\n", ha->host_no, __func__, 6213 ha->pdev->devfn); 6214 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 6215 QLA8XXX_DEV_READY)) { 6216 clear_bit(AF_FW_RECOVERY, &ha->flags); 6217 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 6218 if (rval == QLA_SUCCESS) { 6219 ret = qla4xxx_request_irqs(ha); 6220 if (ret) { 6221 ql4_printk(KERN_WARNING, ha, "Failed to" 6222 " reserve interrupt %d already in" 6223 " use.\n", ha->pdev->irq); 6224 rval = QLA_ERROR; 6225 } else { 6226 ha->isp_ops->enable_intrs(ha); 6227 rval = QLA_SUCCESS; 6228 } 6229 } 6230 ha->isp_ops->idc_lock(ha); 6231 qla4_8xxx_set_drv_active(ha); 6232 ha->isp_ops->idc_unlock(ha); 6233 } 6234 } 6235 exit_error_recovery: 6236 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 6237 return rval; 6238 } 6239 6240 static pci_ers_result_t 6241 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 6242 { 6243 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 6244 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 6245 int rc; 6246 6247 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 6248 ha->host_no, __func__); 6249 6250 if (!is_aer_supported(ha)) 6251 return PCI_ERS_RESULT_NONE; 6252 6253 /* Restore the saved state of PCIe device - 6254 * BAR registers, PCI Config space, PCIX, MSI, 6255 * IOV states 6256 */ 6257 pci_restore_state(pdev); 6258 6259 /* pci_restore_state() clears the saved_state flag of the device 6260 * save restored state which resets saved_state flag 6261 */ 6262 pci_save_state(pdev); 6263 6264 /* Initialize device or resume if in suspended state */ 6265 rc = pci_enable_device(pdev); 6266 if (rc) { 6267 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 6268 "device after reset\n", ha->host_no, __func__); 6269 goto exit_slot_reset; 6270 } 6271 6272 ha->isp_ops->disable_intrs(ha); 6273 6274 if (is_qla80XX(ha)) { 6275 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 6276 ret = PCI_ERS_RESULT_RECOVERED; 6277 goto exit_slot_reset; 6278 } else 6279 goto exit_slot_reset; 6280 } 6281 6282 exit_slot_reset: 6283 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 6284 "device after reset\n", ha->host_no, __func__, ret); 6285 return ret; 6286 } 6287 6288 static void 6289 qla4xxx_pci_resume(struct pci_dev *pdev) 6290 { 6291 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 6292 int ret; 6293 6294 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 6295 ha->host_no, __func__); 6296 6297 ret = qla4xxx_wait_for_hba_online(ha); 6298 if (ret != QLA_SUCCESS) { 6299 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 6300 "resume I/O from slot/link_reset\n", ha->host_no, 6301 __func__); 6302 } 6303 6304 pci_cleanup_aer_uncorrect_error_status(pdev); 6305 clear_bit(AF_EEH_BUSY, &ha->flags); 6306 } 6307 6308 static const struct pci_error_handlers qla4xxx_err_handler = { 6309 .error_detected = qla4xxx_pci_error_detected, 6310 .mmio_enabled = qla4xxx_pci_mmio_enabled, 6311 .slot_reset = qla4xxx_pci_slot_reset, 6312 .resume = qla4xxx_pci_resume, 6313 }; 6314 6315 static struct pci_device_id qla4xxx_pci_tbl[] = { 6316 { 6317 .vendor = PCI_VENDOR_ID_QLOGIC, 6318 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 6319 .subvendor = PCI_ANY_ID, 6320 .subdevice = PCI_ANY_ID, 6321 }, 6322 { 6323 .vendor = PCI_VENDOR_ID_QLOGIC, 6324 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 6325 .subvendor = PCI_ANY_ID, 6326 .subdevice = PCI_ANY_ID, 6327 }, 6328 { 6329 .vendor = PCI_VENDOR_ID_QLOGIC, 6330 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 6331 .subvendor = PCI_ANY_ID, 6332 .subdevice = PCI_ANY_ID, 6333 }, 6334 { 6335 .vendor = PCI_VENDOR_ID_QLOGIC, 6336 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 6337 .subvendor = PCI_ANY_ID, 6338 .subdevice = PCI_ANY_ID, 6339 }, 6340 { 6341 .vendor = PCI_VENDOR_ID_QLOGIC, 6342 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 6343 .subvendor = PCI_ANY_ID, 6344 .subdevice = PCI_ANY_ID, 6345 }, 6346 {0, 0}, 6347 }; 6348 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 6349 6350 static struct pci_driver qla4xxx_pci_driver = { 6351 .name = DRIVER_NAME, 6352 .id_table = qla4xxx_pci_tbl, 6353 .probe = qla4xxx_probe_adapter, 6354 .remove = qla4xxx_remove_adapter, 6355 .err_handler = &qla4xxx_err_handler, 6356 }; 6357 6358 static int __init qla4xxx_module_init(void) 6359 { 6360 int ret; 6361 6362 /* Allocate cache for SRBs. */ 6363 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 6364 SLAB_HWCACHE_ALIGN, NULL); 6365 if (srb_cachep == NULL) { 6366 printk(KERN_ERR 6367 "%s: Unable to allocate SRB cache..." 6368 "Failing load!\n", DRIVER_NAME); 6369 ret = -ENOMEM; 6370 goto no_srp_cache; 6371 } 6372 6373 /* Derive version string. */ 6374 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 6375 if (ql4xextended_error_logging) 6376 strcat(qla4xxx_version_str, "-debug"); 6377 6378 qla4xxx_scsi_transport = 6379 iscsi_register_transport(&qla4xxx_iscsi_transport); 6380 if (!qla4xxx_scsi_transport){ 6381 ret = -ENODEV; 6382 goto release_srb_cache; 6383 } 6384 6385 ret = pci_register_driver(&qla4xxx_pci_driver); 6386 if (ret) 6387 goto unregister_transport; 6388 6389 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 6390 return 0; 6391 6392 unregister_transport: 6393 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6394 release_srb_cache: 6395 kmem_cache_destroy(srb_cachep); 6396 no_srp_cache: 6397 return ret; 6398 } 6399 6400 static void __exit qla4xxx_module_exit(void) 6401 { 6402 pci_unregister_driver(&qla4xxx_pci_driver); 6403 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6404 kmem_cache_destroy(srb_cachep); 6405 } 6406 6407 module_init(qla4xxx_module_init); 6408 module_exit(qla4xxx_module_exit); 6409 6410 MODULE_AUTHOR("QLogic Corporation"); 6411 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 6412 MODULE_LICENSE("GPL"); 6413 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 6414