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(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 2246 goto qc_host_busy; 2247 2248 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 2249 if (!srb) 2250 goto qc_host_busy; 2251 2252 rval = qla4xxx_send_command_to_isp(ha, srb); 2253 if (rval != QLA_SUCCESS) 2254 goto qc_host_busy_free_sp; 2255 2256 return 0; 2257 2258 qc_host_busy_free_sp: 2259 qla4xxx_srb_free_dma(ha, srb); 2260 mempool_free(srb, ha->srb_mempool); 2261 2262 qc_host_busy: 2263 return SCSI_MLQUEUE_HOST_BUSY; 2264 2265 qc_fail_command: 2266 cmd->scsi_done(cmd); 2267 2268 return 0; 2269 } 2270 2271 /** 2272 * qla4xxx_mem_free - frees memory allocated to adapter 2273 * @ha: Pointer to host adapter structure. 2274 * 2275 * Frees memory previously allocated by qla4xxx_mem_alloc 2276 **/ 2277 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 2278 { 2279 if (ha->queues) 2280 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 2281 ha->queues_dma); 2282 2283 if (ha->fw_dump) 2284 vfree(ha->fw_dump); 2285 2286 ha->queues_len = 0; 2287 ha->queues = NULL; 2288 ha->queues_dma = 0; 2289 ha->request_ring = NULL; 2290 ha->request_dma = 0; 2291 ha->response_ring = NULL; 2292 ha->response_dma = 0; 2293 ha->shadow_regs = NULL; 2294 ha->shadow_regs_dma = 0; 2295 ha->fw_dump = NULL; 2296 ha->fw_dump_size = 0; 2297 2298 /* Free srb pool. */ 2299 if (ha->srb_mempool) 2300 mempool_destroy(ha->srb_mempool); 2301 2302 ha->srb_mempool = NULL; 2303 2304 if (ha->chap_dma_pool) 2305 dma_pool_destroy(ha->chap_dma_pool); 2306 2307 if (ha->chap_list) 2308 vfree(ha->chap_list); 2309 ha->chap_list = NULL; 2310 2311 if (ha->fw_ddb_dma_pool) 2312 dma_pool_destroy(ha->fw_ddb_dma_pool); 2313 2314 /* release io space registers */ 2315 if (is_qla8022(ha)) { 2316 if (ha->nx_pcibase) 2317 iounmap( 2318 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 2319 } else if (is_qla8032(ha)) { 2320 if (ha->nx_pcibase) 2321 iounmap( 2322 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 2323 } else if (ha->reg) { 2324 iounmap(ha->reg); 2325 } 2326 2327 if (ha->reset_tmplt.buff) 2328 vfree(ha->reset_tmplt.buff); 2329 2330 pci_release_regions(ha->pdev); 2331 } 2332 2333 /** 2334 * qla4xxx_mem_alloc - allocates memory for use by adapter. 2335 * @ha: Pointer to host adapter structure 2336 * 2337 * Allocates DMA memory for request and response queues. Also allocates memory 2338 * for srbs. 2339 **/ 2340 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 2341 { 2342 unsigned long align; 2343 2344 /* Allocate contiguous block of DMA memory for queues. */ 2345 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2346 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 2347 sizeof(struct shadow_regs) + 2348 MEM_ALIGN_VALUE + 2349 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 2350 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 2351 &ha->queues_dma, GFP_KERNEL); 2352 if (ha->queues == NULL) { 2353 ql4_printk(KERN_WARNING, ha, 2354 "Memory Allocation failed - queues.\n"); 2355 2356 goto mem_alloc_error_exit; 2357 } 2358 memset(ha->queues, 0, ha->queues_len); 2359 2360 /* 2361 * As per RISC alignment requirements -- the bus-address must be a 2362 * multiple of the request-ring size (in bytes). 2363 */ 2364 align = 0; 2365 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 2366 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 2367 (MEM_ALIGN_VALUE - 1)); 2368 2369 /* Update request and response queue pointers. */ 2370 ha->request_dma = ha->queues_dma + align; 2371 ha->request_ring = (struct queue_entry *) (ha->queues + align); 2372 ha->response_dma = ha->queues_dma + align + 2373 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 2374 ha->response_ring = (struct queue_entry *) (ha->queues + align + 2375 (REQUEST_QUEUE_DEPTH * 2376 QUEUE_SIZE)); 2377 ha->shadow_regs_dma = ha->queues_dma + align + 2378 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2379 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 2380 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 2381 (REQUEST_QUEUE_DEPTH * 2382 QUEUE_SIZE) + 2383 (RESPONSE_QUEUE_DEPTH * 2384 QUEUE_SIZE)); 2385 2386 /* Allocate memory for srb pool. */ 2387 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 2388 mempool_free_slab, srb_cachep); 2389 if (ha->srb_mempool == NULL) { 2390 ql4_printk(KERN_WARNING, ha, 2391 "Memory Allocation failed - SRB Pool.\n"); 2392 2393 goto mem_alloc_error_exit; 2394 } 2395 2396 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 2397 CHAP_DMA_BLOCK_SIZE, 8, 0); 2398 2399 if (ha->chap_dma_pool == NULL) { 2400 ql4_printk(KERN_WARNING, ha, 2401 "%s: chap_dma_pool allocation failed..\n", __func__); 2402 goto mem_alloc_error_exit; 2403 } 2404 2405 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 2406 DDB_DMA_BLOCK_SIZE, 8, 0); 2407 2408 if (ha->fw_ddb_dma_pool == NULL) { 2409 ql4_printk(KERN_WARNING, ha, 2410 "%s: fw_ddb_dma_pool allocation failed..\n", 2411 __func__); 2412 goto mem_alloc_error_exit; 2413 } 2414 2415 return QLA_SUCCESS; 2416 2417 mem_alloc_error_exit: 2418 qla4xxx_mem_free(ha); 2419 return QLA_ERROR; 2420 } 2421 2422 /** 2423 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 2424 * @ha: adapter block pointer. 2425 * 2426 * Note: The caller should not hold the idc lock. 2427 **/ 2428 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 2429 { 2430 uint32_t temp, temp_state, temp_val; 2431 int status = QLA_SUCCESS; 2432 2433 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 2434 2435 temp_state = qla82xx_get_temp_state(temp); 2436 temp_val = qla82xx_get_temp_val(temp); 2437 2438 if (temp_state == QLA82XX_TEMP_PANIC) { 2439 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 2440 " exceeds maximum allowed. Hardware has been shut" 2441 " down.\n", temp_val); 2442 status = QLA_ERROR; 2443 } else if (temp_state == QLA82XX_TEMP_WARN) { 2444 if (ha->temperature == QLA82XX_TEMP_NORMAL) 2445 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 2446 " degrees C exceeds operating range." 2447 " Immediate action needed.\n", temp_val); 2448 } else { 2449 if (ha->temperature == QLA82XX_TEMP_WARN) 2450 ql4_printk(KERN_INFO, ha, "Device temperature is" 2451 " now %d degrees C in normal range.\n", 2452 temp_val); 2453 } 2454 ha->temperature = temp_state; 2455 return status; 2456 } 2457 2458 /** 2459 * qla4_8xxx_check_fw_alive - Check firmware health 2460 * @ha: Pointer to host adapter structure. 2461 * 2462 * Context: Interrupt 2463 **/ 2464 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 2465 { 2466 uint32_t fw_heartbeat_counter; 2467 int status = QLA_SUCCESS; 2468 2469 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 2470 QLA8XXX_PEG_ALIVE_COUNTER); 2471 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 2472 if (fw_heartbeat_counter == 0xffffffff) { 2473 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 2474 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 2475 ha->host_no, __func__)); 2476 return status; 2477 } 2478 2479 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 2480 ha->seconds_since_last_heartbeat++; 2481 /* FW not alive after 2 seconds */ 2482 if (ha->seconds_since_last_heartbeat == 2) { 2483 ha->seconds_since_last_heartbeat = 0; 2484 qla4_8xxx_dump_peg_reg(ha); 2485 status = QLA_ERROR; 2486 } 2487 } else 2488 ha->seconds_since_last_heartbeat = 0; 2489 2490 ha->fw_heartbeat_counter = fw_heartbeat_counter; 2491 return status; 2492 } 2493 2494 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 2495 { 2496 uint32_t halt_status; 2497 int halt_status_unrecoverable = 0; 2498 2499 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 2500 2501 if (is_qla8022(ha)) { 2502 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 2503 __func__); 2504 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2505 CRB_NIU_XG_PAUSE_CTL_P0 | 2506 CRB_NIU_XG_PAUSE_CTL_P1); 2507 2508 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 2509 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 2510 __func__); 2511 if (halt_status & HALT_STATUS_UNRECOVERABLE) 2512 halt_status_unrecoverable = 1; 2513 } else if (is_qla8032(ha)) { 2514 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 2515 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 2516 __func__); 2517 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 2518 halt_status_unrecoverable = 1; 2519 } 2520 2521 /* 2522 * Since we cannot change dev_state in interrupt context, 2523 * set appropriate DPC flag then wakeup DPC 2524 */ 2525 if (halt_status_unrecoverable) { 2526 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 2527 } else { 2528 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 2529 __func__); 2530 set_bit(DPC_RESET_HA, &ha->dpc_flags); 2531 } 2532 qla4xxx_mailbox_premature_completion(ha); 2533 qla4xxx_wake_dpc(ha); 2534 } 2535 2536 /** 2537 * qla4_8xxx_watchdog - Poll dev state 2538 * @ha: Pointer to host adapter structure. 2539 * 2540 * Context: Interrupt 2541 **/ 2542 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 2543 { 2544 uint32_t dev_state; 2545 2546 /* don't poll if reset is going on */ 2547 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2548 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2549 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 2550 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 2551 2552 if (qla4_8xxx_check_temp(ha)) { 2553 if (is_qla8022(ha)) { 2554 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 2555 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2556 CRB_NIU_XG_PAUSE_CTL_P0 | 2557 CRB_NIU_XG_PAUSE_CTL_P1); 2558 } 2559 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 2560 qla4xxx_wake_dpc(ha); 2561 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 2562 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 2563 if (is_qla8032(ha) || 2564 (is_qla8022(ha) && !ql4xdontresethba)) { 2565 ql4_printk(KERN_INFO, ha, "%s: HW State: " 2566 "NEED RESET!\n", __func__); 2567 set_bit(DPC_RESET_HA, &ha->dpc_flags); 2568 qla4xxx_wake_dpc(ha); 2569 } 2570 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 2571 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 2572 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 2573 __func__); 2574 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 2575 qla4xxx_wake_dpc(ha); 2576 } else { 2577 /* Check firmware health */ 2578 if (qla4_8xxx_check_fw_alive(ha)) 2579 qla4_8xxx_process_fw_error(ha); 2580 } 2581 } 2582 } 2583 2584 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 2585 { 2586 struct iscsi_session *sess; 2587 struct ddb_entry *ddb_entry; 2588 struct scsi_qla_host *ha; 2589 2590 sess = cls_sess->dd_data; 2591 ddb_entry = sess->dd_data; 2592 ha = ddb_entry->ha; 2593 2594 if (!(ddb_entry->ddb_type == FLASH_DDB)) 2595 return; 2596 2597 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 2598 !iscsi_is_session_online(cls_sess)) { 2599 if (atomic_read(&ddb_entry->retry_relogin_timer) != 2600 INVALID_ENTRY) { 2601 if (atomic_read(&ddb_entry->retry_relogin_timer) == 2602 0) { 2603 atomic_set(&ddb_entry->retry_relogin_timer, 2604 INVALID_ENTRY); 2605 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 2606 set_bit(DF_RELOGIN, &ddb_entry->flags); 2607 DEBUG2(ql4_printk(KERN_INFO, ha, 2608 "%s: index [%d] login device\n", 2609 __func__, ddb_entry->fw_ddb_index)); 2610 } else 2611 atomic_dec(&ddb_entry->retry_relogin_timer); 2612 } 2613 } 2614 2615 /* Wait for relogin to timeout */ 2616 if (atomic_read(&ddb_entry->relogin_timer) && 2617 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 2618 /* 2619 * If the relogin times out and the device is 2620 * still NOT ONLINE then try and relogin again. 2621 */ 2622 if (!iscsi_is_session_online(cls_sess)) { 2623 /* Reset retry relogin timer */ 2624 atomic_inc(&ddb_entry->relogin_retry_count); 2625 DEBUG2(ql4_printk(KERN_INFO, ha, 2626 "%s: index[%d] relogin timed out-retrying" 2627 " relogin (%d), retry (%d)\n", __func__, 2628 ddb_entry->fw_ddb_index, 2629 atomic_read(&ddb_entry->relogin_retry_count), 2630 ddb_entry->default_time2wait + 4)); 2631 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 2632 atomic_set(&ddb_entry->retry_relogin_timer, 2633 ddb_entry->default_time2wait + 4); 2634 } 2635 } 2636 } 2637 2638 /** 2639 * qla4xxx_timer - checks every second for work to do. 2640 * @ha: Pointer to host adapter structure. 2641 **/ 2642 static void qla4xxx_timer(struct scsi_qla_host *ha) 2643 { 2644 int start_dpc = 0; 2645 uint16_t w; 2646 2647 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 2648 2649 /* If we are in the middle of AER/EEH processing 2650 * skip any processing and reschedule the timer 2651 */ 2652 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 2653 mod_timer(&ha->timer, jiffies + HZ); 2654 return; 2655 } 2656 2657 /* Hardware read to trigger an EEH error during mailbox waits. */ 2658 if (!pci_channel_offline(ha->pdev)) 2659 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 2660 2661 if (is_qla80XX(ha)) 2662 qla4_8xxx_watchdog(ha); 2663 2664 if (is_qla40XX(ha)) { 2665 /* Check for heartbeat interval. */ 2666 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 2667 ha->heartbeat_interval != 0) { 2668 ha->seconds_since_last_heartbeat++; 2669 if (ha->seconds_since_last_heartbeat > 2670 ha->heartbeat_interval + 2) 2671 set_bit(DPC_RESET_HA, &ha->dpc_flags); 2672 } 2673 } 2674 2675 /* Process any deferred work. */ 2676 if (!list_empty(&ha->work_list)) 2677 start_dpc++; 2678 2679 /* Wakeup the dpc routine for this adapter, if needed. */ 2680 if (start_dpc || 2681 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2682 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 2683 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 2684 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2685 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2686 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 2687 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 2688 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2689 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 2690 test_bit(DPC_AEN, &ha->dpc_flags)) { 2691 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 2692 " - dpc flags = 0x%lx\n", 2693 ha->host_no, __func__, ha->dpc_flags)); 2694 qla4xxx_wake_dpc(ha); 2695 } 2696 2697 /* Reschedule timer thread to call us back in one second */ 2698 mod_timer(&ha->timer, jiffies + HZ); 2699 2700 DEBUG2(ha->seconds_since_last_intr++); 2701 } 2702 2703 /** 2704 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 2705 * @ha: Pointer to host adapter structure. 2706 * 2707 * This routine stalls the driver until all outstanding commands are returned. 2708 * Caller must release the Hardware Lock prior to calling this routine. 2709 **/ 2710 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 2711 { 2712 uint32_t index = 0; 2713 unsigned long flags; 2714 struct scsi_cmnd *cmd; 2715 2716 unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 2717 2718 DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 2719 "complete\n", WAIT_CMD_TOV)); 2720 2721 while (!time_after_eq(jiffies, wtime)) { 2722 spin_lock_irqsave(&ha->hardware_lock, flags); 2723 /* Find a command that hasn't completed. */ 2724 for (index = 0; index < ha->host->can_queue; index++) { 2725 cmd = scsi_host_find_tag(ha->host, index); 2726 /* 2727 * We cannot just check if the index is valid, 2728 * becase if we are run from the scsi eh, then 2729 * the scsi/block layer is going to prevent 2730 * the tag from being released. 2731 */ 2732 if (cmd != NULL && CMD_SP(cmd)) 2733 break; 2734 } 2735 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2736 2737 /* If No Commands are pending, wait is complete */ 2738 if (index == ha->host->can_queue) 2739 return QLA_SUCCESS; 2740 2741 msleep(1000); 2742 } 2743 /* If we timed out on waiting for commands to come back 2744 * return ERROR. */ 2745 return QLA_ERROR; 2746 } 2747 2748 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 2749 { 2750 uint32_t ctrl_status; 2751 unsigned long flags = 0; 2752 2753 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 2754 2755 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 2756 return QLA_ERROR; 2757 2758 spin_lock_irqsave(&ha->hardware_lock, flags); 2759 2760 /* 2761 * If the SCSI Reset Interrupt bit is set, clear it. 2762 * Otherwise, the Soft Reset won't work. 2763 */ 2764 ctrl_status = readw(&ha->reg->ctrl_status); 2765 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 2766 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2767 2768 /* Issue Soft Reset */ 2769 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 2770 readl(&ha->reg->ctrl_status); 2771 2772 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2773 return QLA_SUCCESS; 2774 } 2775 2776 /** 2777 * qla4xxx_soft_reset - performs soft reset. 2778 * @ha: Pointer to host adapter structure. 2779 **/ 2780 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 2781 { 2782 uint32_t max_wait_time; 2783 unsigned long flags = 0; 2784 int status; 2785 uint32_t ctrl_status; 2786 2787 status = qla4xxx_hw_reset(ha); 2788 if (status != QLA_SUCCESS) 2789 return status; 2790 2791 status = QLA_ERROR; 2792 /* Wait until the Network Reset Intr bit is cleared */ 2793 max_wait_time = RESET_INTR_TOV; 2794 do { 2795 spin_lock_irqsave(&ha->hardware_lock, flags); 2796 ctrl_status = readw(&ha->reg->ctrl_status); 2797 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2798 2799 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 2800 break; 2801 2802 msleep(1000); 2803 } while ((--max_wait_time)); 2804 2805 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 2806 DEBUG2(printk(KERN_WARNING 2807 "scsi%ld: Network Reset Intr not cleared by " 2808 "Network function, clearing it now!\n", 2809 ha->host_no)); 2810 spin_lock_irqsave(&ha->hardware_lock, flags); 2811 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 2812 readl(&ha->reg->ctrl_status); 2813 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2814 } 2815 2816 /* Wait until the firmware tells us the Soft Reset is done */ 2817 max_wait_time = SOFT_RESET_TOV; 2818 do { 2819 spin_lock_irqsave(&ha->hardware_lock, flags); 2820 ctrl_status = readw(&ha->reg->ctrl_status); 2821 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2822 2823 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 2824 status = QLA_SUCCESS; 2825 break; 2826 } 2827 2828 msleep(1000); 2829 } while ((--max_wait_time)); 2830 2831 /* 2832 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 2833 * after the soft reset has taken place. 2834 */ 2835 spin_lock_irqsave(&ha->hardware_lock, flags); 2836 ctrl_status = readw(&ha->reg->ctrl_status); 2837 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 2838 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2839 readl(&ha->reg->ctrl_status); 2840 } 2841 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2842 2843 /* If soft reset fails then most probably the bios on other 2844 * function is also enabled. 2845 * Since the initialization is sequential the other fn 2846 * wont be able to acknowledge the soft reset. 2847 * Issue a force soft reset to workaround this scenario. 2848 */ 2849 if (max_wait_time == 0) { 2850 /* Issue Force Soft Reset */ 2851 spin_lock_irqsave(&ha->hardware_lock, flags); 2852 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 2853 readl(&ha->reg->ctrl_status); 2854 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2855 /* Wait until the firmware tells us the Soft Reset is done */ 2856 max_wait_time = SOFT_RESET_TOV; 2857 do { 2858 spin_lock_irqsave(&ha->hardware_lock, flags); 2859 ctrl_status = readw(&ha->reg->ctrl_status); 2860 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2861 2862 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 2863 status = QLA_SUCCESS; 2864 break; 2865 } 2866 2867 msleep(1000); 2868 } while ((--max_wait_time)); 2869 } 2870 2871 return status; 2872 } 2873 2874 /** 2875 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 2876 * @ha: Pointer to host adapter structure. 2877 * @res: returned scsi status 2878 * 2879 * This routine is called just prior to a HARD RESET to return all 2880 * outstanding commands back to the Operating System. 2881 * Caller should make sure that the following locks are released 2882 * before this calling routine: Hardware lock, and io_request_lock. 2883 **/ 2884 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 2885 { 2886 struct srb *srb; 2887 int i; 2888 unsigned long flags; 2889 2890 spin_lock_irqsave(&ha->hardware_lock, flags); 2891 for (i = 0; i < ha->host->can_queue; i++) { 2892 srb = qla4xxx_del_from_active_array(ha, i); 2893 if (srb != NULL) { 2894 srb->cmd->result = res; 2895 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 2896 } 2897 } 2898 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2899 } 2900 2901 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 2902 { 2903 clear_bit(AF_ONLINE, &ha->flags); 2904 2905 /* Disable the board */ 2906 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 2907 2908 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2909 qla4xxx_mark_all_devices_missing(ha); 2910 clear_bit(AF_INIT_DONE, &ha->flags); 2911 } 2912 2913 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 2914 { 2915 struct iscsi_session *sess; 2916 struct ddb_entry *ddb_entry; 2917 2918 sess = cls_session->dd_data; 2919 ddb_entry = sess->dd_data; 2920 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 2921 2922 if (ddb_entry->ddb_type == FLASH_DDB) 2923 iscsi_block_session(ddb_entry->sess); 2924 else 2925 iscsi_session_failure(cls_session->dd_data, 2926 ISCSI_ERR_CONN_FAILED); 2927 } 2928 2929 /** 2930 * qla4xxx_recover_adapter - recovers adapter after a fatal error 2931 * @ha: Pointer to host adapter structure. 2932 **/ 2933 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 2934 { 2935 int status = QLA_ERROR; 2936 uint8_t reset_chip = 0; 2937 uint32_t dev_state; 2938 unsigned long wait; 2939 2940 /* Stall incoming I/O until we are done */ 2941 scsi_block_requests(ha->host); 2942 clear_bit(AF_ONLINE, &ha->flags); 2943 clear_bit(AF_LINK_UP, &ha->flags); 2944 2945 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 2946 2947 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2948 2949 if (is_qla8032(ha) && 2950 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2951 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 2952 __func__); 2953 /* disable pause frame for ISP83xx */ 2954 qla4_83xx_disable_pause(ha); 2955 } 2956 2957 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 2958 2959 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2960 reset_chip = 1; 2961 2962 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 2963 * do not reset adapter, jump to initialize_adapter */ 2964 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2965 status = QLA_SUCCESS; 2966 goto recover_ha_init_adapter; 2967 } 2968 2969 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 2970 * from eh_host_reset or ioctl module */ 2971 if (is_qla80XX(ha) && !reset_chip && 2972 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2973 2974 DEBUG2(ql4_printk(KERN_INFO, ha, 2975 "scsi%ld: %s - Performing stop_firmware...\n", 2976 ha->host_no, __func__)); 2977 status = ha->isp_ops->reset_firmware(ha); 2978 if (status == QLA_SUCCESS) { 2979 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2980 qla4xxx_cmd_wait(ha); 2981 ha->isp_ops->disable_intrs(ha); 2982 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2983 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2984 } else { 2985 /* If the stop_firmware fails then 2986 * reset the entire chip */ 2987 reset_chip = 1; 2988 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2989 set_bit(DPC_RESET_HA, &ha->dpc_flags); 2990 } 2991 } 2992 2993 /* Issue full chip reset if recovering from a catastrophic error, 2994 * or if stop_firmware fails for ISP-8xxx. 2995 * This is the default case for ISP-4xxx */ 2996 if (is_qla40XX(ha) || reset_chip) { 2997 if (is_qla40XX(ha)) 2998 goto chip_reset; 2999 3000 /* Check if 8XXX firmware is alive or not 3001 * We may have arrived here from NEED_RESET 3002 * detection only */ 3003 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 3004 goto chip_reset; 3005 3006 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 3007 while (time_before(jiffies, wait)) { 3008 if (qla4_8xxx_check_fw_alive(ha)) { 3009 qla4xxx_mailbox_premature_completion(ha); 3010 break; 3011 } 3012 3013 set_current_state(TASK_UNINTERRUPTIBLE); 3014 schedule_timeout(HZ); 3015 } 3016 chip_reset: 3017 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 3018 qla4xxx_cmd_wait(ha); 3019 3020 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3021 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3022 DEBUG2(ql4_printk(KERN_INFO, ha, 3023 "scsi%ld: %s - Performing chip reset..\n", 3024 ha->host_no, __func__)); 3025 status = ha->isp_ops->reset_chip(ha); 3026 } 3027 3028 /* Flush any pending ddb changed AENs */ 3029 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3030 3031 recover_ha_init_adapter: 3032 /* Upon successful firmware/chip reset, re-initialize the adapter */ 3033 if (status == QLA_SUCCESS) { 3034 /* For ISP-4xxx, force function 1 to always initialize 3035 * before function 3 to prevent both funcions from 3036 * stepping on top of the other */ 3037 if (is_qla40XX(ha) && (ha->mac_index == 3)) 3038 ssleep(6); 3039 3040 /* NOTE: AF_ONLINE flag set upon successful completion of 3041 * qla4xxx_initialize_adapter */ 3042 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 3043 } 3044 3045 /* Retry failed adapter initialization, if necessary 3046 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 3047 * case to prevent ping-pong resets between functions */ 3048 if (!test_bit(AF_ONLINE, &ha->flags) && 3049 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3050 /* Adapter initialization failed, see if we can retry 3051 * resetting the ha. 3052 * Since we don't want to block the DPC for too long 3053 * with multiple resets in the same thread, 3054 * utilize DPC to retry */ 3055 if (is_qla80XX(ha)) { 3056 ha->isp_ops->idc_lock(ha); 3057 dev_state = qla4_8xxx_rd_direct(ha, 3058 QLA8XXX_CRB_DEV_STATE); 3059 ha->isp_ops->idc_unlock(ha); 3060 if (dev_state == QLA8XXX_DEV_FAILED) { 3061 ql4_printk(KERN_INFO, ha, "%s: don't retry " 3062 "recover adapter. H/W is in Failed " 3063 "state\n", __func__); 3064 qla4xxx_dead_adapter_cleanup(ha); 3065 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3066 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3067 clear_bit(DPC_RESET_HA_FW_CONTEXT, 3068 &ha->dpc_flags); 3069 status = QLA_ERROR; 3070 3071 goto exit_recover; 3072 } 3073 } 3074 3075 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 3076 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 3077 DEBUG2(printk("scsi%ld: recover adapter - retrying " 3078 "(%d) more times\n", ha->host_no, 3079 ha->retry_reset_ha_cnt)); 3080 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3081 status = QLA_ERROR; 3082 } else { 3083 if (ha->retry_reset_ha_cnt > 0) { 3084 /* Schedule another Reset HA--DPC will retry */ 3085 ha->retry_reset_ha_cnt--; 3086 DEBUG2(printk("scsi%ld: recover adapter - " 3087 "retry remaining %d\n", 3088 ha->host_no, 3089 ha->retry_reset_ha_cnt)); 3090 status = QLA_ERROR; 3091 } 3092 3093 if (ha->retry_reset_ha_cnt == 0) { 3094 /* Recover adapter retries have been exhausted. 3095 * Adapter DEAD */ 3096 DEBUG2(printk("scsi%ld: recover adapter " 3097 "failed - board disabled\n", 3098 ha->host_no)); 3099 qla4xxx_dead_adapter_cleanup(ha); 3100 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3101 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3102 clear_bit(DPC_RESET_HA_FW_CONTEXT, 3103 &ha->dpc_flags); 3104 status = QLA_ERROR; 3105 } 3106 } 3107 } else { 3108 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3109 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3110 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3111 } 3112 3113 exit_recover: 3114 ha->adapter_error_count++; 3115 3116 if (test_bit(AF_ONLINE, &ha->flags)) 3117 ha->isp_ops->enable_intrs(ha); 3118 3119 scsi_unblock_requests(ha->host); 3120 3121 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 3122 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 3123 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 3124 3125 return status; 3126 } 3127 3128 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 3129 { 3130 struct iscsi_session *sess; 3131 struct ddb_entry *ddb_entry; 3132 struct scsi_qla_host *ha; 3133 3134 sess = cls_session->dd_data; 3135 ddb_entry = sess->dd_data; 3136 ha = ddb_entry->ha; 3137 if (!iscsi_is_session_online(cls_session)) { 3138 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 3139 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3140 " unblock session\n", ha->host_no, __func__, 3141 ddb_entry->fw_ddb_index); 3142 iscsi_unblock_session(ddb_entry->sess); 3143 } else { 3144 /* Trigger relogin */ 3145 if (ddb_entry->ddb_type == FLASH_DDB) { 3146 if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 3147 qla4xxx_arm_relogin_timer(ddb_entry); 3148 } else 3149 iscsi_session_failure(cls_session->dd_data, 3150 ISCSI_ERR_CONN_FAILED); 3151 } 3152 } 3153 } 3154 3155 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 3156 { 3157 struct iscsi_session *sess; 3158 struct ddb_entry *ddb_entry; 3159 struct scsi_qla_host *ha; 3160 3161 sess = cls_session->dd_data; 3162 ddb_entry = sess->dd_data; 3163 ha = ddb_entry->ha; 3164 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3165 " unblock session\n", ha->host_no, __func__, 3166 ddb_entry->fw_ddb_index); 3167 3168 iscsi_unblock_session(ddb_entry->sess); 3169 3170 /* Start scan target */ 3171 if (test_bit(AF_ONLINE, &ha->flags)) { 3172 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3173 " start scan\n", ha->host_no, __func__, 3174 ddb_entry->fw_ddb_index); 3175 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 3176 } 3177 return QLA_SUCCESS; 3178 } 3179 3180 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 3181 { 3182 struct iscsi_session *sess; 3183 struct ddb_entry *ddb_entry; 3184 struct scsi_qla_host *ha; 3185 int status = QLA_SUCCESS; 3186 3187 sess = cls_session->dd_data; 3188 ddb_entry = sess->dd_data; 3189 ha = ddb_entry->ha; 3190 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3191 " unblock user space session\n", ha->host_no, __func__, 3192 ddb_entry->fw_ddb_index); 3193 3194 if (!iscsi_is_session_online(cls_session)) { 3195 iscsi_conn_start(ddb_entry->conn); 3196 iscsi_conn_login_event(ddb_entry->conn, 3197 ISCSI_CONN_STATE_LOGGED_IN); 3198 } else { 3199 ql4_printk(KERN_INFO, ha, 3200 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 3201 ha->host_no, __func__, ddb_entry->fw_ddb_index, 3202 cls_session->sid); 3203 status = QLA_ERROR; 3204 } 3205 3206 return status; 3207 } 3208 3209 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 3210 { 3211 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 3212 } 3213 3214 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 3215 { 3216 uint16_t relogin_timer; 3217 struct iscsi_session *sess; 3218 struct ddb_entry *ddb_entry; 3219 struct scsi_qla_host *ha; 3220 3221 sess = cls_sess->dd_data; 3222 ddb_entry = sess->dd_data; 3223 ha = ddb_entry->ha; 3224 3225 relogin_timer = max(ddb_entry->default_relogin_timeout, 3226 (uint16_t)RELOGIN_TOV); 3227 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 3228 3229 DEBUG2(ql4_printk(KERN_INFO, ha, 3230 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 3231 ddb_entry->fw_ddb_index, relogin_timer)); 3232 3233 qla4xxx_login_flash_ddb(cls_sess); 3234 } 3235 3236 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 3237 { 3238 struct iscsi_session *sess; 3239 struct ddb_entry *ddb_entry; 3240 struct scsi_qla_host *ha; 3241 3242 sess = cls_sess->dd_data; 3243 ddb_entry = sess->dd_data; 3244 ha = ddb_entry->ha; 3245 3246 if (!(ddb_entry->ddb_type == FLASH_DDB)) 3247 return; 3248 3249 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 3250 !iscsi_is_session_online(cls_sess)) { 3251 DEBUG2(ql4_printk(KERN_INFO, ha, 3252 "relogin issued\n")); 3253 qla4xxx_relogin_flash_ddb(cls_sess); 3254 } 3255 } 3256 3257 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 3258 { 3259 if (ha->dpc_thread) 3260 queue_work(ha->dpc_thread, &ha->dpc_work); 3261 } 3262 3263 static struct qla4_work_evt * 3264 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 3265 enum qla4_work_type type) 3266 { 3267 struct qla4_work_evt *e; 3268 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 3269 3270 e = kzalloc(size, GFP_ATOMIC); 3271 if (!e) 3272 return NULL; 3273 3274 INIT_LIST_HEAD(&e->list); 3275 e->type = type; 3276 return e; 3277 } 3278 3279 static void qla4xxx_post_work(struct scsi_qla_host *ha, 3280 struct qla4_work_evt *e) 3281 { 3282 unsigned long flags; 3283 3284 spin_lock_irqsave(&ha->work_lock, flags); 3285 list_add_tail(&e->list, &ha->work_list); 3286 spin_unlock_irqrestore(&ha->work_lock, flags); 3287 qla4xxx_wake_dpc(ha); 3288 } 3289 3290 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 3291 enum iscsi_host_event_code aen_code, 3292 uint32_t data_size, uint8_t *data) 3293 { 3294 struct qla4_work_evt *e; 3295 3296 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 3297 if (!e) 3298 return QLA_ERROR; 3299 3300 e->u.aen.code = aen_code; 3301 e->u.aen.data_size = data_size; 3302 memcpy(e->u.aen.data, data, data_size); 3303 3304 qla4xxx_post_work(ha, e); 3305 3306 return QLA_SUCCESS; 3307 } 3308 3309 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 3310 uint32_t status, uint32_t pid, 3311 uint32_t data_size, uint8_t *data) 3312 { 3313 struct qla4_work_evt *e; 3314 3315 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 3316 if (!e) 3317 return QLA_ERROR; 3318 3319 e->u.ping.status = status; 3320 e->u.ping.pid = pid; 3321 e->u.ping.data_size = data_size; 3322 memcpy(e->u.ping.data, data, data_size); 3323 3324 qla4xxx_post_work(ha, e); 3325 3326 return QLA_SUCCESS; 3327 } 3328 3329 static void qla4xxx_do_work(struct scsi_qla_host *ha) 3330 { 3331 struct qla4_work_evt *e, *tmp; 3332 unsigned long flags; 3333 LIST_HEAD(work); 3334 3335 spin_lock_irqsave(&ha->work_lock, flags); 3336 list_splice_init(&ha->work_list, &work); 3337 spin_unlock_irqrestore(&ha->work_lock, flags); 3338 3339 list_for_each_entry_safe(e, tmp, &work, list) { 3340 list_del_init(&e->list); 3341 3342 switch (e->type) { 3343 case QLA4_EVENT_AEN: 3344 iscsi_post_host_event(ha->host_no, 3345 &qla4xxx_iscsi_transport, 3346 e->u.aen.code, 3347 e->u.aen.data_size, 3348 e->u.aen.data); 3349 break; 3350 case QLA4_EVENT_PING_STATUS: 3351 iscsi_ping_comp_event(ha->host_no, 3352 &qla4xxx_iscsi_transport, 3353 e->u.ping.status, 3354 e->u.ping.pid, 3355 e->u.ping.data_size, 3356 e->u.ping.data); 3357 break; 3358 default: 3359 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 3360 "supported", e->type); 3361 } 3362 kfree(e); 3363 } 3364 } 3365 3366 /** 3367 * qla4xxx_do_dpc - dpc routine 3368 * @data: in our case pointer to adapter structure 3369 * 3370 * This routine is a task that is schedule by the interrupt handler 3371 * to perform the background processing for interrupts. We put it 3372 * on a task queue that is consumed whenever the scheduler runs; that's 3373 * so you can do anything (i.e. put the process to sleep etc). In fact, 3374 * the mid-level tries to sleep when it reaches the driver threshold 3375 * "host->can_queue". This can cause a panic if we were in our interrupt code. 3376 **/ 3377 static void qla4xxx_do_dpc(struct work_struct *work) 3378 { 3379 struct scsi_qla_host *ha = 3380 container_of(work, struct scsi_qla_host, dpc_work); 3381 int status = QLA_ERROR; 3382 3383 DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 3384 "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 3385 ha->host_no, __func__, ha->flags, ha->dpc_flags)) 3386 3387 /* Initialization not yet finished. Don't do anything yet. */ 3388 if (!test_bit(AF_INIT_DONE, &ha->flags)) 3389 return; 3390 3391 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 3392 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 3393 ha->host_no, __func__, ha->flags)); 3394 return; 3395 } 3396 3397 /* post events to application */ 3398 qla4xxx_do_work(ha); 3399 3400 if (is_qla80XX(ha)) { 3401 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 3402 if (is_qla8032(ha)) { 3403 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 3404 __func__); 3405 /* disable pause frame for ISP83xx */ 3406 qla4_83xx_disable_pause(ha); 3407 } 3408 3409 ha->isp_ops->idc_lock(ha); 3410 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 3411 QLA8XXX_DEV_FAILED); 3412 ha->isp_ops->idc_unlock(ha); 3413 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 3414 qla4_8xxx_device_state_handler(ha); 3415 } 3416 3417 if (test_and_clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) 3418 qla4_83xx_post_idc_ack(ha); 3419 3420 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 3421 qla4_8xxx_need_qsnt_handler(ha); 3422 } 3423 } 3424 3425 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 3426 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 3427 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 3428 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 3429 if ((is_qla8022(ha) && ql4xdontresethba) || 3430 (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) { 3431 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 3432 ha->host_no, __func__)); 3433 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3434 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3435 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3436 goto dpc_post_reset_ha; 3437 } 3438 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 3439 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 3440 qla4xxx_recover_adapter(ha); 3441 3442 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3443 uint8_t wait_time = RESET_INTR_TOV; 3444 3445 while ((readw(&ha->reg->ctrl_status) & 3446 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 3447 if (--wait_time == 0) 3448 break; 3449 msleep(1000); 3450 } 3451 if (wait_time == 0) 3452 DEBUG2(printk("scsi%ld: %s: SR|FSR " 3453 "bit not cleared-- resetting\n", 3454 ha->host_no, __func__)); 3455 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3456 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 3457 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3458 status = qla4xxx_recover_adapter(ha); 3459 } 3460 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3461 if (status == QLA_SUCCESS) 3462 ha->isp_ops->enable_intrs(ha); 3463 } 3464 } 3465 3466 dpc_post_reset_ha: 3467 /* ---- process AEN? --- */ 3468 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 3469 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 3470 3471 /* ---- Get DHCP IP Address? --- */ 3472 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 3473 qla4xxx_get_dhcp_ip_address(ha); 3474 3475 /* ---- relogin device? --- */ 3476 if (adapter_up(ha) && 3477 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 3478 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 3479 } 3480 3481 /* ---- link change? --- */ 3482 if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 3483 if (!test_bit(AF_LINK_UP, &ha->flags)) { 3484 /* ---- link down? --- */ 3485 qla4xxx_mark_all_devices_missing(ha); 3486 } else { 3487 /* ---- link up? --- * 3488 * F/W will auto login to all devices ONLY ONCE after 3489 * link up during driver initialization and runtime 3490 * fatal error recovery. Therefore, the driver must 3491 * manually relogin to devices when recovering from 3492 * connection failures, logouts, expired KATO, etc. */ 3493 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 3494 qla4xxx_build_ddb_list(ha, ha->is_reset); 3495 iscsi_host_for_each_session(ha->host, 3496 qla4xxx_login_flash_ddb); 3497 } else 3498 qla4xxx_relogin_all_devices(ha); 3499 } 3500 } 3501 } 3502 3503 /** 3504 * qla4xxx_free_adapter - release the adapter 3505 * @ha: pointer to adapter structure 3506 **/ 3507 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 3508 { 3509 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 3510 3511 if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 3512 /* Turn-off interrupts on the card. */ 3513 ha->isp_ops->disable_intrs(ha); 3514 } 3515 3516 if (is_qla40XX(ha)) { 3517 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 3518 &ha->reg->ctrl_status); 3519 readl(&ha->reg->ctrl_status); 3520 } else if (is_qla8022(ha)) { 3521 writel(0, &ha->qla4_82xx_reg->host_int); 3522 readl(&ha->qla4_82xx_reg->host_int); 3523 } else if (is_qla8032(ha)) { 3524 writel(0, &ha->qla4_83xx_reg->risc_intr); 3525 readl(&ha->qla4_83xx_reg->risc_intr); 3526 } 3527 3528 /* Remove timer thread, if present */ 3529 if (ha->timer_active) 3530 qla4xxx_stop_timer(ha); 3531 3532 /* Kill the kernel thread for this host */ 3533 if (ha->dpc_thread) 3534 destroy_workqueue(ha->dpc_thread); 3535 3536 /* Kill the kernel thread for this host */ 3537 if (ha->task_wq) 3538 destroy_workqueue(ha->task_wq); 3539 3540 /* Put firmware in known state */ 3541 ha->isp_ops->reset_firmware(ha); 3542 3543 if (is_qla80XX(ha)) { 3544 ha->isp_ops->idc_lock(ha); 3545 qla4_8xxx_clear_drv_active(ha); 3546 ha->isp_ops->idc_unlock(ha); 3547 } 3548 3549 /* Detach interrupts */ 3550 if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 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 *dst_addr; 4691 char *ip; 4692 4693 /* TODO: need to destroy on unload iscsi_endpoint*/ 4694 dst_addr = vmalloc(sizeof(*dst_addr)); 4695 if (!dst_addr) 4696 return NULL; 4697 4698 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 4699 dst_addr->sa_family = AF_INET6; 4700 addr6 = (struct sockaddr_in6 *)dst_addr; 4701 ip = (char *)&addr6->sin6_addr; 4702 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 4703 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 4704 4705 } else { 4706 dst_addr->sa_family = AF_INET; 4707 addr = (struct sockaddr_in *)dst_addr; 4708 ip = (char *)&addr->sin_addr; 4709 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 4710 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 4711 } 4712 4713 ep = qla4xxx_ep_connect(ha->host, dst_addr, 0); 4714 vfree(dst_addr); 4715 return ep; 4716 } 4717 4718 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 4719 { 4720 if (ql4xdisablesysfsboot) 4721 return QLA_SUCCESS; 4722 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 4723 return QLA_ERROR; 4724 return QLA_SUCCESS; 4725 } 4726 4727 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 4728 struct ddb_entry *ddb_entry) 4729 { 4730 uint16_t def_timeout; 4731 4732 ddb_entry->ddb_type = FLASH_DDB; 4733 ddb_entry->fw_ddb_index = INVALID_ENTRY; 4734 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 4735 ddb_entry->ha = ha; 4736 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 4737 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 4738 4739 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 4740 atomic_set(&ddb_entry->relogin_timer, 0); 4741 atomic_set(&ddb_entry->relogin_retry_count, 0); 4742 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 4743 ddb_entry->default_relogin_timeout = 4744 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 4745 def_timeout : LOGIN_TOV; 4746 ddb_entry->default_time2wait = 4747 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 4748 } 4749 4750 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 4751 { 4752 uint32_t idx = 0; 4753 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 4754 uint32_t sts[MBOX_REG_COUNT]; 4755 uint32_t ip_state; 4756 unsigned long wtime; 4757 int ret; 4758 4759 wtime = jiffies + (HZ * IP_CONFIG_TOV); 4760 do { 4761 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 4762 if (ip_idx[idx] == -1) 4763 continue; 4764 4765 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 4766 4767 if (ret == QLA_ERROR) { 4768 ip_idx[idx] = -1; 4769 continue; 4770 } 4771 4772 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 4773 4774 DEBUG2(ql4_printk(KERN_INFO, ha, 4775 "Waiting for IP state for idx = %d, state = 0x%x\n", 4776 ip_idx[idx], ip_state)); 4777 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 4778 ip_state == IP_ADDRSTATE_INVALID || 4779 ip_state == IP_ADDRSTATE_PREFERRED || 4780 ip_state == IP_ADDRSTATE_DEPRICATED || 4781 ip_state == IP_ADDRSTATE_DISABLING) 4782 ip_idx[idx] = -1; 4783 } 4784 4785 /* Break if all IP states checked */ 4786 if ((ip_idx[0] == -1) && 4787 (ip_idx[1] == -1) && 4788 (ip_idx[2] == -1) && 4789 (ip_idx[3] == -1)) 4790 break; 4791 schedule_timeout_uninterruptible(HZ); 4792 } while (time_after(wtime, jiffies)); 4793 } 4794 4795 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 4796 struct list_head *list_st) 4797 { 4798 struct qla_ddb_index *st_ddb_idx; 4799 int max_ddbs; 4800 int fw_idx_size; 4801 struct dev_db_entry *fw_ddb_entry; 4802 dma_addr_t fw_ddb_dma; 4803 int ret; 4804 uint32_t idx = 0, next_idx = 0; 4805 uint32_t state = 0, conn_err = 0; 4806 uint16_t conn_id = 0; 4807 4808 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 4809 &fw_ddb_dma); 4810 if (fw_ddb_entry == NULL) { 4811 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 4812 goto exit_st_list; 4813 } 4814 4815 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 4816 MAX_DEV_DB_ENTRIES; 4817 fw_idx_size = sizeof(struct qla_ddb_index); 4818 4819 for (idx = 0; idx < max_ddbs; idx = next_idx) { 4820 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 4821 NULL, &next_idx, &state, 4822 &conn_err, NULL, &conn_id); 4823 if (ret == QLA_ERROR) 4824 break; 4825 4826 /* Ignore DDB if invalid state (unassigned) */ 4827 if (state == DDB_DS_UNASSIGNED) 4828 goto continue_next_st; 4829 4830 /* Check if ST, add to the list_st */ 4831 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 4832 goto continue_next_st; 4833 4834 st_ddb_idx = vzalloc(fw_idx_size); 4835 if (!st_ddb_idx) 4836 break; 4837 4838 st_ddb_idx->fw_ddb_idx = idx; 4839 4840 list_add_tail(&st_ddb_idx->list, list_st); 4841 continue_next_st: 4842 if (next_idx == 0) 4843 break; 4844 } 4845 4846 exit_st_list: 4847 if (fw_ddb_entry) 4848 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 4849 } 4850 4851 /** 4852 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 4853 * @ha: pointer to adapter structure 4854 * @list_ddb: List from which failed ddb to be removed 4855 * 4856 * Iterate over the list of DDBs and find and remove DDBs that are either in 4857 * no connection active state or failed state 4858 **/ 4859 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 4860 struct list_head *list_ddb) 4861 { 4862 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 4863 uint32_t next_idx = 0; 4864 uint32_t state = 0, conn_err = 0; 4865 int ret; 4866 4867 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 4868 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 4869 NULL, 0, NULL, &next_idx, &state, 4870 &conn_err, NULL, NULL); 4871 if (ret == QLA_ERROR) 4872 continue; 4873 4874 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 4875 state == DDB_DS_SESSION_FAILED) { 4876 list_del_init(&ddb_idx->list); 4877 vfree(ddb_idx); 4878 } 4879 } 4880 } 4881 4882 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 4883 struct dev_db_entry *fw_ddb_entry, 4884 int is_reset) 4885 { 4886 struct iscsi_cls_session *cls_sess; 4887 struct iscsi_session *sess; 4888 struct iscsi_cls_conn *cls_conn; 4889 struct iscsi_endpoint *ep; 4890 uint16_t cmds_max = 32; 4891 uint16_t conn_id = 0; 4892 uint32_t initial_cmdsn = 0; 4893 int ret = QLA_SUCCESS; 4894 4895 struct ddb_entry *ddb_entry = NULL; 4896 4897 /* Create session object, with INVALID_ENTRY, 4898 * the targer_id would get set when we issue the login 4899 */ 4900 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 4901 cmds_max, sizeof(struct ddb_entry), 4902 sizeof(struct ql4_task_data), 4903 initial_cmdsn, INVALID_ENTRY); 4904 if (!cls_sess) { 4905 ret = QLA_ERROR; 4906 goto exit_setup; 4907 } 4908 4909 /* 4910 * so calling module_put function to decrement the 4911 * reference count. 4912 **/ 4913 module_put(qla4xxx_iscsi_transport.owner); 4914 sess = cls_sess->dd_data; 4915 ddb_entry = sess->dd_data; 4916 ddb_entry->sess = cls_sess; 4917 4918 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 4919 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 4920 sizeof(struct dev_db_entry)); 4921 4922 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry); 4923 4924 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 4925 4926 if (!cls_conn) { 4927 ret = QLA_ERROR; 4928 goto exit_setup; 4929 } 4930 4931 ddb_entry->conn = cls_conn; 4932 4933 /* Setup ep, for displaying attributes in sysfs */ 4934 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 4935 if (ep) { 4936 ep->conn = cls_conn; 4937 cls_conn->ep = ep; 4938 } else { 4939 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 4940 ret = QLA_ERROR; 4941 goto exit_setup; 4942 } 4943 4944 /* Update sess/conn params */ 4945 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 4946 4947 if (is_reset == RESET_ADAPTER) { 4948 iscsi_block_session(cls_sess); 4949 /* Use the relogin path to discover new devices 4950 * by short-circuting the logic of setting 4951 * timer to relogin - instead set the flags 4952 * to initiate login right away. 4953 */ 4954 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4955 set_bit(DF_RELOGIN, &ddb_entry->flags); 4956 } 4957 4958 exit_setup: 4959 return ret; 4960 } 4961 4962 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 4963 struct list_head *list_nt, int is_reset) 4964 { 4965 struct dev_db_entry *fw_ddb_entry; 4966 dma_addr_t fw_ddb_dma; 4967 int max_ddbs; 4968 int fw_idx_size; 4969 int ret; 4970 uint32_t idx = 0, next_idx = 0; 4971 uint32_t state = 0, conn_err = 0; 4972 uint16_t conn_id = 0; 4973 struct qla_ddb_index *nt_ddb_idx; 4974 4975 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 4976 &fw_ddb_dma); 4977 if (fw_ddb_entry == NULL) { 4978 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 4979 goto exit_nt_list; 4980 } 4981 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 4982 MAX_DEV_DB_ENTRIES; 4983 fw_idx_size = sizeof(struct qla_ddb_index); 4984 4985 for (idx = 0; idx < max_ddbs; idx = next_idx) { 4986 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 4987 NULL, &next_idx, &state, 4988 &conn_err, NULL, &conn_id); 4989 if (ret == QLA_ERROR) 4990 break; 4991 4992 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 4993 goto continue_next_nt; 4994 4995 /* Check if NT, then add to list it */ 4996 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 4997 goto continue_next_nt; 4998 4999 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 5000 state == DDB_DS_SESSION_FAILED)) 5001 goto continue_next_nt; 5002 5003 DEBUG2(ql4_printk(KERN_INFO, ha, 5004 "Adding DDB to session = 0x%x\n", idx)); 5005 if (is_reset == INIT_ADAPTER) { 5006 nt_ddb_idx = vmalloc(fw_idx_size); 5007 if (!nt_ddb_idx) 5008 break; 5009 5010 nt_ddb_idx->fw_ddb_idx = idx; 5011 5012 /* Copy original isid as it may get updated in function 5013 * qla4xxx_update_isid(). We need original isid in 5014 * function qla4xxx_compare_tuple_ddb to find duplicate 5015 * target */ 5016 memcpy(&nt_ddb_idx->flash_isid[0], 5017 &fw_ddb_entry->isid[0], 5018 sizeof(nt_ddb_idx->flash_isid)); 5019 5020 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 5021 fw_ddb_entry); 5022 if (ret == QLA_SUCCESS) { 5023 /* free nt_ddb_idx and do not add to list_nt */ 5024 vfree(nt_ddb_idx); 5025 goto continue_next_nt; 5026 } 5027 5028 /* Copy updated isid */ 5029 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 5030 sizeof(struct dev_db_entry)); 5031 5032 list_add_tail(&nt_ddb_idx->list, list_nt); 5033 } else if (is_reset == RESET_ADAPTER) { 5034 if (qla4xxx_is_session_exists(ha, fw_ddb_entry) == 5035 QLA_SUCCESS) 5036 goto continue_next_nt; 5037 } 5038 5039 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset); 5040 if (ret == QLA_ERROR) 5041 goto exit_nt_list; 5042 5043 continue_next_nt: 5044 if (next_idx == 0) 5045 break; 5046 } 5047 5048 exit_nt_list: 5049 if (fw_ddb_entry) 5050 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 5051 } 5052 5053 /** 5054 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 5055 * @ha: pointer to adapter structure 5056 * @is_reset: Is this init path or reset path 5057 * 5058 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 5059 * using connection open, then create the list of normal targets (nt) 5060 * from firmware DDBs. Based on the list of nt setup session and connection 5061 * objects. 5062 **/ 5063 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 5064 { 5065 uint16_t tmo = 0; 5066 struct list_head list_st, list_nt; 5067 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 5068 unsigned long wtime; 5069 5070 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5071 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 5072 ha->is_reset = is_reset; 5073 return; 5074 } 5075 5076 INIT_LIST_HEAD(&list_st); 5077 INIT_LIST_HEAD(&list_nt); 5078 5079 qla4xxx_build_st_list(ha, &list_st); 5080 5081 /* Before issuing conn open mbox, ensure all IPs states are configured 5082 * Note, conn open fails if IPs are not configured 5083 */ 5084 qla4xxx_wait_for_ip_configuration(ha); 5085 5086 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 5087 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 5088 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 5089 } 5090 5091 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 5092 tmo = ((ha->def_timeout > LOGIN_TOV) && 5093 (ha->def_timeout < LOGIN_TOV * 10) ? 5094 ha->def_timeout : LOGIN_TOV); 5095 5096 DEBUG2(ql4_printk(KERN_INFO, ha, 5097 "Default time to wait for build ddb %d\n", tmo)); 5098 5099 wtime = jiffies + (HZ * tmo); 5100 do { 5101 if (list_empty(&list_st)) 5102 break; 5103 5104 qla4xxx_remove_failed_ddb(ha, &list_st); 5105 schedule_timeout_uninterruptible(HZ / 10); 5106 } while (time_after(wtime, jiffies)); 5107 5108 /* Free up the sendtargets list */ 5109 qla4xxx_free_ddb_list(&list_st); 5110 5111 qla4xxx_build_nt_list(ha, &list_nt, is_reset); 5112 5113 qla4xxx_free_ddb_list(&list_nt); 5114 5115 qla4xxx_free_ddb_index(ha); 5116 } 5117 5118 /** 5119 * qla4xxx_probe_adapter - callback function to probe HBA 5120 * @pdev: pointer to pci_dev structure 5121 * @pci_device_id: pointer to pci_device entry 5122 * 5123 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 5124 * It returns zero if successful. It also initializes all data necessary for 5125 * the driver. 5126 **/ 5127 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 5128 const struct pci_device_id *ent) 5129 { 5130 int ret = -ENODEV, status; 5131 struct Scsi_Host *host; 5132 struct scsi_qla_host *ha; 5133 uint8_t init_retry_count = 0; 5134 char buf[34]; 5135 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 5136 uint32_t dev_state; 5137 5138 if (pci_enable_device(pdev)) 5139 return -1; 5140 5141 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 5142 if (host == NULL) { 5143 printk(KERN_WARNING 5144 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 5145 goto probe_disable_device; 5146 } 5147 5148 /* Clear our data area */ 5149 ha = to_qla_host(host); 5150 memset(ha, 0, sizeof(*ha)); 5151 5152 /* Save the information from PCI BIOS. */ 5153 ha->pdev = pdev; 5154 ha->host = host; 5155 ha->host_no = host->host_no; 5156 ha->func_num = PCI_FUNC(ha->pdev->devfn); 5157 5158 pci_enable_pcie_error_reporting(pdev); 5159 5160 /* Setup Runtime configurable options */ 5161 if (is_qla8022(ha)) { 5162 ha->isp_ops = &qla4_82xx_isp_ops; 5163 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 5164 ha->qdr_sn_window = -1; 5165 ha->ddr_mn_window = -1; 5166 ha->curr_window = 255; 5167 nx_legacy_intr = &legacy_intr[ha->func_num]; 5168 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 5169 ha->nx_legacy_intr.tgt_status_reg = 5170 nx_legacy_intr->tgt_status_reg; 5171 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 5172 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 5173 } else if (is_qla8032(ha)) { 5174 ha->isp_ops = &qla4_83xx_isp_ops; 5175 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 5176 } else { 5177 ha->isp_ops = &qla4xxx_isp_ops; 5178 } 5179 5180 if (is_qla80XX(ha)) { 5181 rwlock_init(&ha->hw_lock); 5182 ha->pf_bit = ha->func_num << 16; 5183 /* Set EEH reset type to fundamental if required by hba */ 5184 pdev->needs_freset = 1; 5185 } 5186 5187 /* Configure PCI I/O space. */ 5188 ret = ha->isp_ops->iospace_config(ha); 5189 if (ret) 5190 goto probe_failed_ioconfig; 5191 5192 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 5193 pdev->device, pdev->irq, ha->reg); 5194 5195 qla4xxx_config_dma_addressing(ha); 5196 5197 /* Initialize lists and spinlocks. */ 5198 INIT_LIST_HEAD(&ha->free_srb_q); 5199 5200 mutex_init(&ha->mbox_sem); 5201 mutex_init(&ha->chap_sem); 5202 init_completion(&ha->mbx_intr_comp); 5203 init_completion(&ha->disable_acb_comp); 5204 5205 spin_lock_init(&ha->hardware_lock); 5206 spin_lock_init(&ha->work_lock); 5207 5208 /* Initialize work list */ 5209 INIT_LIST_HEAD(&ha->work_list); 5210 5211 /* Allocate dma buffers */ 5212 if (qla4xxx_mem_alloc(ha)) { 5213 ql4_printk(KERN_WARNING, ha, 5214 "[ERROR] Failed to allocate memory for adapter\n"); 5215 5216 ret = -ENOMEM; 5217 goto probe_failed; 5218 } 5219 5220 host->cmd_per_lun = 3; 5221 host->max_channel = 0; 5222 host->max_lun = MAX_LUNS - 1; 5223 host->max_id = MAX_TARGETS; 5224 host->max_cmd_len = IOCB_MAX_CDB_LEN; 5225 host->can_queue = MAX_SRBS ; 5226 host->transportt = qla4xxx_scsi_transport; 5227 5228 ret = scsi_init_shared_tag_map(host, MAX_SRBS); 5229 if (ret) { 5230 ql4_printk(KERN_WARNING, ha, 5231 "%s: scsi_init_shared_tag_map failed\n", __func__); 5232 goto probe_failed; 5233 } 5234 5235 pci_set_drvdata(pdev, ha); 5236 5237 ret = scsi_add_host(host, &pdev->dev); 5238 if (ret) 5239 goto probe_failed; 5240 5241 if (is_qla80XX(ha)) 5242 qla4_8xxx_get_flash_info(ha); 5243 5244 if (is_qla8032(ha)) { 5245 qla4_83xx_read_reset_template(ha); 5246 /* 5247 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 5248 * If DONRESET_BIT0 is set, drivers should not set dev_state 5249 * to NEED_RESET. But if NEED_RESET is set, drivers should 5250 * should honor the reset. 5251 */ 5252 if (ql4xdontresethba == 1) 5253 qla4_83xx_set_idc_dontreset(ha); 5254 } 5255 5256 /* 5257 * Initialize the Host adapter request/response queues and 5258 * firmware 5259 * NOTE: interrupts enabled upon successful completion 5260 */ 5261 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 5262 5263 /* Dont retry adapter initialization if IRQ allocation failed */ 5264 if (!test_bit(AF_IRQ_ATTACHED, &ha->flags)) 5265 goto skip_retry_init; 5266 5267 while ((!test_bit(AF_ONLINE, &ha->flags)) && 5268 init_retry_count++ < MAX_INIT_RETRIES) { 5269 5270 if (is_qla80XX(ha)) { 5271 ha->isp_ops->idc_lock(ha); 5272 dev_state = qla4_8xxx_rd_direct(ha, 5273 QLA82XX_CRB_DEV_STATE); 5274 ha->isp_ops->idc_unlock(ha); 5275 if (dev_state == QLA8XXX_DEV_FAILED) { 5276 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 5277 "initialize adapter. H/W is in failed state\n", 5278 __func__); 5279 break; 5280 } 5281 } 5282 DEBUG2(printk("scsi: %s: retrying adapter initialization " 5283 "(%d)\n", __func__, init_retry_count)); 5284 5285 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 5286 continue; 5287 5288 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 5289 } 5290 5291 skip_retry_init: 5292 if (!test_bit(AF_ONLINE, &ha->flags)) { 5293 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 5294 5295 if ((is_qla8022(ha) && ql4xdontresethba) || 5296 (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) { 5297 /* Put the device in failed state. */ 5298 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 5299 ha->isp_ops->idc_lock(ha); 5300 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5301 QLA8XXX_DEV_FAILED); 5302 ha->isp_ops->idc_unlock(ha); 5303 } 5304 ret = -ENODEV; 5305 goto remove_host; 5306 } 5307 5308 /* Startup the kernel thread for this host adapter. */ 5309 DEBUG2(printk("scsi: %s: Starting kernel thread for " 5310 "qla4xxx_dpc\n", __func__)); 5311 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 5312 ha->dpc_thread = create_singlethread_workqueue(buf); 5313 if (!ha->dpc_thread) { 5314 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 5315 ret = -ENODEV; 5316 goto remove_host; 5317 } 5318 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 5319 5320 sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 5321 ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 5322 if (!ha->task_wq) { 5323 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 5324 ret = -ENODEV; 5325 goto remove_host; 5326 } 5327 5328 /* 5329 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 5330 * (which is called indirectly by qla4xxx_initialize_adapter), 5331 * so that irqs will be registered after crbinit but before 5332 * mbx_intr_enable. 5333 */ 5334 if (is_qla40XX(ha)) { 5335 ret = qla4xxx_request_irqs(ha); 5336 if (ret) { 5337 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 5338 "interrupt %d already in use.\n", pdev->irq); 5339 goto remove_host; 5340 } 5341 } 5342 5343 pci_save_state(ha->pdev); 5344 ha->isp_ops->enable_intrs(ha); 5345 5346 /* Start timer thread. */ 5347 qla4xxx_start_timer(ha, qla4xxx_timer, 1); 5348 5349 set_bit(AF_INIT_DONE, &ha->flags); 5350 5351 qla4_8xxx_alloc_sysfs_attr(ha); 5352 5353 printk(KERN_INFO 5354 " QLogic iSCSI HBA Driver version: %s\n" 5355 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 5356 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 5357 ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 5358 ha->patch_number, ha->build_number); 5359 5360 /* Set the driver version */ 5361 if (is_qla80XX(ha)) 5362 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 5363 5364 if (qla4xxx_setup_boot_info(ha)) 5365 ql4_printk(KERN_ERR, ha, 5366 "%s: No iSCSI boot target configured\n", __func__); 5367 5368 /* Perform the build ddb list and login to each */ 5369 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 5370 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 5371 5372 qla4xxx_create_chap_list(ha); 5373 5374 qla4xxx_create_ifaces(ha); 5375 return 0; 5376 5377 remove_host: 5378 scsi_remove_host(ha->host); 5379 5380 probe_failed: 5381 qla4xxx_free_adapter(ha); 5382 5383 probe_failed_ioconfig: 5384 pci_disable_pcie_error_reporting(pdev); 5385 scsi_host_put(ha->host); 5386 5387 probe_disable_device: 5388 pci_disable_device(pdev); 5389 5390 return ret; 5391 } 5392 5393 /** 5394 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 5395 * @ha: pointer to adapter structure 5396 * 5397 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 5398 * so that the other port will not re-initialize while in the process of 5399 * removing the ha due to driver unload or hba hotplug. 5400 **/ 5401 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 5402 { 5403 struct scsi_qla_host *other_ha = NULL; 5404 struct pci_dev *other_pdev = NULL; 5405 int fn = ISP4XXX_PCI_FN_2; 5406 5407 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 5408 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 5409 fn = ISP4XXX_PCI_FN_1; 5410 5411 other_pdev = 5412 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 5413 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 5414 fn)); 5415 5416 /* Get other_ha if other_pdev is valid and state is enable*/ 5417 if (other_pdev) { 5418 if (atomic_read(&other_pdev->enable_cnt)) { 5419 other_ha = pci_get_drvdata(other_pdev); 5420 if (other_ha) { 5421 set_bit(AF_HA_REMOVAL, &other_ha->flags); 5422 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 5423 "Prevent %s reinit\n", __func__, 5424 dev_name(&other_ha->pdev->dev))); 5425 } 5426 } 5427 pci_dev_put(other_pdev); 5428 } 5429 } 5430 5431 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 5432 { 5433 struct ddb_entry *ddb_entry; 5434 int options; 5435 int idx; 5436 5437 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 5438 5439 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 5440 if ((ddb_entry != NULL) && 5441 (ddb_entry->ddb_type == FLASH_DDB)) { 5442 5443 options = LOGOUT_OPTION_CLOSE_SESSION; 5444 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) 5445 == QLA_ERROR) 5446 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", 5447 __func__); 5448 5449 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 5450 /* 5451 * we have decremented the reference count of the driver 5452 * when we setup the session to have the driver unload 5453 * to be seamless without actually destroying the 5454 * session 5455 **/ 5456 try_module_get(qla4xxx_iscsi_transport.owner); 5457 iscsi_destroy_endpoint(ddb_entry->conn->ep); 5458 qla4xxx_free_ddb(ha, ddb_entry); 5459 iscsi_session_teardown(ddb_entry->sess); 5460 } 5461 } 5462 } 5463 /** 5464 * qla4xxx_remove_adapter - callback function to remove adapter. 5465 * @pci_dev: PCI device pointer 5466 **/ 5467 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 5468 { 5469 struct scsi_qla_host *ha; 5470 5471 /* 5472 * If the PCI device is disabled then it means probe_adapter had 5473 * failed and resources already cleaned up on probe_adapter exit. 5474 */ 5475 if (!pci_is_enabled(pdev)) 5476 return; 5477 5478 ha = pci_get_drvdata(pdev); 5479 5480 if (is_qla40XX(ha)) 5481 qla4xxx_prevent_other_port_reinit(ha); 5482 5483 /* destroy iface from sysfs */ 5484 qla4xxx_destroy_ifaces(ha); 5485 5486 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 5487 iscsi_boot_destroy_kset(ha->boot_kset); 5488 5489 qla4xxx_destroy_fw_ddb_session(ha); 5490 qla4_8xxx_free_sysfs_attr(ha); 5491 5492 scsi_remove_host(ha->host); 5493 5494 qla4xxx_free_adapter(ha); 5495 5496 scsi_host_put(ha->host); 5497 5498 pci_disable_pcie_error_reporting(pdev); 5499 pci_disable_device(pdev); 5500 pci_set_drvdata(pdev, NULL); 5501 } 5502 5503 /** 5504 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 5505 * @ha: HA context 5506 * 5507 * At exit, the @ha's flags.enable_64bit_addressing set to indicated 5508 * supported addressing method. 5509 */ 5510 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 5511 { 5512 int retval; 5513 5514 /* Update our PCI device dma_mask for full 64 bit mask */ 5515 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 5516 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 5517 dev_dbg(&ha->pdev->dev, 5518 "Failed to set 64 bit PCI consistent mask; " 5519 "using 32 bit.\n"); 5520 retval = pci_set_consistent_dma_mask(ha->pdev, 5521 DMA_BIT_MASK(32)); 5522 } 5523 } else 5524 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 5525 } 5526 5527 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 5528 { 5529 struct iscsi_cls_session *cls_sess; 5530 struct iscsi_session *sess; 5531 struct ddb_entry *ddb; 5532 int queue_depth = QL4_DEF_QDEPTH; 5533 5534 cls_sess = starget_to_session(sdev->sdev_target); 5535 sess = cls_sess->dd_data; 5536 ddb = sess->dd_data; 5537 5538 sdev->hostdata = ddb; 5539 sdev->tagged_supported = 1; 5540 5541 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 5542 queue_depth = ql4xmaxqdepth; 5543 5544 scsi_activate_tcq(sdev, queue_depth); 5545 return 0; 5546 } 5547 5548 static int qla4xxx_slave_configure(struct scsi_device *sdev) 5549 { 5550 sdev->tagged_supported = 1; 5551 return 0; 5552 } 5553 5554 static void qla4xxx_slave_destroy(struct scsi_device *sdev) 5555 { 5556 scsi_deactivate_tcq(sdev, 1); 5557 } 5558 5559 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 5560 int reason) 5561 { 5562 if (!ql4xqfulltracking) 5563 return -EOPNOTSUPP; 5564 5565 return iscsi_change_queue_depth(sdev, qdepth, reason); 5566 } 5567 5568 /** 5569 * qla4xxx_del_from_active_array - returns an active srb 5570 * @ha: Pointer to host adapter structure. 5571 * @index: index into the active_array 5572 * 5573 * This routine removes and returns the srb at the specified index 5574 **/ 5575 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 5576 uint32_t index) 5577 { 5578 struct srb *srb = NULL; 5579 struct scsi_cmnd *cmd = NULL; 5580 5581 cmd = scsi_host_find_tag(ha->host, index); 5582 if (!cmd) 5583 return srb; 5584 5585 srb = (struct srb *)CMD_SP(cmd); 5586 if (!srb) 5587 return srb; 5588 5589 /* update counters */ 5590 if (srb->flags & SRB_DMA_VALID) { 5591 ha->req_q_count += srb->iocb_cnt; 5592 ha->iocb_cnt -= srb->iocb_cnt; 5593 if (srb->cmd) 5594 srb->cmd->host_scribble = 5595 (unsigned char *)(unsigned long) MAX_SRBS; 5596 } 5597 return srb; 5598 } 5599 5600 /** 5601 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 5602 * @ha: Pointer to host adapter structure. 5603 * @cmd: Scsi Command to wait on. 5604 * 5605 * This routine waits for the command to be returned by the Firmware 5606 * for some max time. 5607 **/ 5608 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 5609 struct scsi_cmnd *cmd) 5610 { 5611 int done = 0; 5612 struct srb *rp; 5613 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 5614 int ret = SUCCESS; 5615 5616 /* Dont wait on command if PCI error is being handled 5617 * by PCI AER driver 5618 */ 5619 if (unlikely(pci_channel_offline(ha->pdev)) || 5620 (test_bit(AF_EEH_BUSY, &ha->flags))) { 5621 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 5622 ha->host_no, __func__); 5623 return ret; 5624 } 5625 5626 do { 5627 /* Checking to see if its returned to OS */ 5628 rp = (struct srb *) CMD_SP(cmd); 5629 if (rp == NULL) { 5630 done++; 5631 break; 5632 } 5633 5634 msleep(2000); 5635 } while (max_wait_time--); 5636 5637 return done; 5638 } 5639 5640 /** 5641 * qla4xxx_wait_for_hba_online - waits for HBA to come online 5642 * @ha: Pointer to host adapter structure 5643 **/ 5644 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 5645 { 5646 unsigned long wait_online; 5647 5648 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 5649 while (time_before(jiffies, wait_online)) { 5650 5651 if (adapter_up(ha)) 5652 return QLA_SUCCESS; 5653 5654 msleep(2000); 5655 } 5656 5657 return QLA_ERROR; 5658 } 5659 5660 /** 5661 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 5662 * @ha: pointer to HBA 5663 * @t: target id 5664 * @l: lun id 5665 * 5666 * This function waits for all outstanding commands to a lun to complete. It 5667 * returns 0 if all pending commands are returned and 1 otherwise. 5668 **/ 5669 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 5670 struct scsi_target *stgt, 5671 struct scsi_device *sdev) 5672 { 5673 int cnt; 5674 int status = 0; 5675 struct scsi_cmnd *cmd; 5676 5677 /* 5678 * Waiting for all commands for the designated target or dev 5679 * in the active array 5680 */ 5681 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 5682 cmd = scsi_host_find_tag(ha->host, cnt); 5683 if (cmd && stgt == scsi_target(cmd->device) && 5684 (!sdev || sdev == cmd->device)) { 5685 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 5686 status++; 5687 break; 5688 } 5689 } 5690 } 5691 return status; 5692 } 5693 5694 /** 5695 * qla4xxx_eh_abort - callback for abort task. 5696 * @cmd: Pointer to Linux's SCSI command structure 5697 * 5698 * This routine is called by the Linux OS to abort the specified 5699 * command. 5700 **/ 5701 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 5702 { 5703 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5704 unsigned int id = cmd->device->id; 5705 unsigned int lun = cmd->device->lun; 5706 unsigned long flags; 5707 struct srb *srb = NULL; 5708 int ret = SUCCESS; 5709 int wait = 0; 5710 5711 ql4_printk(KERN_INFO, ha, 5712 "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 5713 ha->host_no, id, lun, cmd); 5714 5715 spin_lock_irqsave(&ha->hardware_lock, flags); 5716 srb = (struct srb *) CMD_SP(cmd); 5717 if (!srb) { 5718 spin_unlock_irqrestore(&ha->hardware_lock, flags); 5719 return SUCCESS; 5720 } 5721 kref_get(&srb->srb_ref); 5722 spin_unlock_irqrestore(&ha->hardware_lock, flags); 5723 5724 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 5725 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 5726 ha->host_no, id, lun)); 5727 ret = FAILED; 5728 } else { 5729 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 5730 ha->host_no, id, lun)); 5731 wait = 1; 5732 } 5733 5734 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 5735 5736 /* Wait for command to complete */ 5737 if (wait) { 5738 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 5739 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 5740 ha->host_no, id, lun)); 5741 ret = FAILED; 5742 } 5743 } 5744 5745 ql4_printk(KERN_INFO, ha, 5746 "scsi%ld:%d:%d: Abort command - %s\n", 5747 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 5748 5749 return ret; 5750 } 5751 5752 /** 5753 * qla4xxx_eh_device_reset - callback for target reset. 5754 * @cmd: Pointer to Linux's SCSI command structure 5755 * 5756 * This routine is called by the Linux OS to reset all luns on the 5757 * specified target. 5758 **/ 5759 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 5760 { 5761 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5762 struct ddb_entry *ddb_entry = cmd->device->hostdata; 5763 int ret = FAILED, stat; 5764 5765 if (!ddb_entry) 5766 return ret; 5767 5768 ret = iscsi_block_scsi_eh(cmd); 5769 if (ret) 5770 return ret; 5771 ret = FAILED; 5772 5773 ql4_printk(KERN_INFO, ha, 5774 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 5775 cmd->device->channel, cmd->device->id, cmd->device->lun); 5776 5777 DEBUG2(printk(KERN_INFO 5778 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 5779 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 5780 cmd, jiffies, cmd->request->timeout / HZ, 5781 ha->dpc_flags, cmd->result, cmd->allowed)); 5782 5783 /* FIXME: wait for hba to go online */ 5784 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 5785 if (stat != QLA_SUCCESS) { 5786 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 5787 goto eh_dev_reset_done; 5788 } 5789 5790 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5791 cmd->device)) { 5792 ql4_printk(KERN_INFO, ha, 5793 "DEVICE RESET FAILED - waiting for " 5794 "commands.\n"); 5795 goto eh_dev_reset_done; 5796 } 5797 5798 /* Send marker. */ 5799 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 5800 MM_LUN_RESET) != QLA_SUCCESS) 5801 goto eh_dev_reset_done; 5802 5803 ql4_printk(KERN_INFO, ha, 5804 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 5805 ha->host_no, cmd->device->channel, cmd->device->id, 5806 cmd->device->lun); 5807 5808 ret = SUCCESS; 5809 5810 eh_dev_reset_done: 5811 5812 return ret; 5813 } 5814 5815 /** 5816 * qla4xxx_eh_target_reset - callback for target reset. 5817 * @cmd: Pointer to Linux's SCSI command structure 5818 * 5819 * This routine is called by the Linux OS to reset the target. 5820 **/ 5821 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 5822 { 5823 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5824 struct ddb_entry *ddb_entry = cmd->device->hostdata; 5825 int stat, ret; 5826 5827 if (!ddb_entry) 5828 return FAILED; 5829 5830 ret = iscsi_block_scsi_eh(cmd); 5831 if (ret) 5832 return ret; 5833 5834 starget_printk(KERN_INFO, scsi_target(cmd->device), 5835 "WARM TARGET RESET ISSUED.\n"); 5836 5837 DEBUG2(printk(KERN_INFO 5838 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 5839 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 5840 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 5841 ha->dpc_flags, cmd->result, cmd->allowed)); 5842 5843 stat = qla4xxx_reset_target(ha, ddb_entry); 5844 if (stat != QLA_SUCCESS) { 5845 starget_printk(KERN_INFO, scsi_target(cmd->device), 5846 "WARM TARGET RESET FAILED.\n"); 5847 return FAILED; 5848 } 5849 5850 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5851 NULL)) { 5852 starget_printk(KERN_INFO, scsi_target(cmd->device), 5853 "WARM TARGET DEVICE RESET FAILED - " 5854 "waiting for commands.\n"); 5855 return FAILED; 5856 } 5857 5858 /* Send marker. */ 5859 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 5860 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 5861 starget_printk(KERN_INFO, scsi_target(cmd->device), 5862 "WARM TARGET DEVICE RESET FAILED - " 5863 "marker iocb failed.\n"); 5864 return FAILED; 5865 } 5866 5867 starget_printk(KERN_INFO, scsi_target(cmd->device), 5868 "WARM TARGET RESET SUCCEEDED.\n"); 5869 return SUCCESS; 5870 } 5871 5872 /** 5873 * qla4xxx_is_eh_active - check if error handler is running 5874 * @shost: Pointer to SCSI Host struct 5875 * 5876 * This routine finds that if reset host is called in EH 5877 * scenario or from some application like sg_reset 5878 **/ 5879 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 5880 { 5881 if (shost->shost_state == SHOST_RECOVERY) 5882 return 1; 5883 return 0; 5884 } 5885 5886 /** 5887 * qla4xxx_eh_host_reset - kernel callback 5888 * @cmd: Pointer to Linux's SCSI command structure 5889 * 5890 * This routine is invoked by the Linux kernel to perform fatal error 5891 * recovery on the specified adapter. 5892 **/ 5893 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 5894 { 5895 int return_status = FAILED; 5896 struct scsi_qla_host *ha; 5897 5898 ha = to_qla_host(cmd->device->host); 5899 5900 if (is_qla8032(ha) && ql4xdontresethba) 5901 qla4_83xx_set_idc_dontreset(ha); 5902 5903 /* 5904 * For ISP8324, if IDC_CTRL DONTRESET_BIT0 is set by other 5905 * protocol drivers, we should not set device_state to 5906 * NEED_RESET 5907 */ 5908 if (ql4xdontresethba || 5909 (is_qla8032(ha) && qla4_83xx_idc_dontreset(ha))) { 5910 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5911 ha->host_no, __func__)); 5912 5913 /* Clear outstanding srb in queues */ 5914 if (qla4xxx_is_eh_active(cmd->device->host)) 5915 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 5916 5917 return FAILED; 5918 } 5919 5920 ql4_printk(KERN_INFO, ha, 5921 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 5922 cmd->device->channel, cmd->device->id, cmd->device->lun); 5923 5924 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 5925 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 5926 "DEAD.\n", ha->host_no, cmd->device->channel, 5927 __func__)); 5928 5929 return FAILED; 5930 } 5931 5932 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 5933 if (is_qla80XX(ha)) 5934 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5935 else 5936 set_bit(DPC_RESET_HA, &ha->dpc_flags); 5937 } 5938 5939 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 5940 return_status = SUCCESS; 5941 5942 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 5943 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 5944 5945 return return_status; 5946 } 5947 5948 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 5949 { 5950 uint32_t mbox_cmd[MBOX_REG_COUNT]; 5951 uint32_t mbox_sts[MBOX_REG_COUNT]; 5952 struct addr_ctrl_blk_def *acb = NULL; 5953 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 5954 int rval = QLA_SUCCESS; 5955 dma_addr_t acb_dma; 5956 5957 acb = dma_alloc_coherent(&ha->pdev->dev, 5958 sizeof(struct addr_ctrl_blk_def), 5959 &acb_dma, GFP_KERNEL); 5960 if (!acb) { 5961 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 5962 __func__); 5963 rval = -ENOMEM; 5964 goto exit_port_reset; 5965 } 5966 5967 memset(acb, 0, acb_len); 5968 5969 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 5970 if (rval != QLA_SUCCESS) { 5971 rval = -EIO; 5972 goto exit_free_acb; 5973 } 5974 5975 rval = qla4xxx_disable_acb(ha); 5976 if (rval != QLA_SUCCESS) { 5977 rval = -EIO; 5978 goto exit_free_acb; 5979 } 5980 5981 wait_for_completion_timeout(&ha->disable_acb_comp, 5982 DISABLE_ACB_TOV * HZ); 5983 5984 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 5985 if (rval != QLA_SUCCESS) { 5986 rval = -EIO; 5987 goto exit_free_acb; 5988 } 5989 5990 exit_free_acb: 5991 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 5992 acb, acb_dma); 5993 exit_port_reset: 5994 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 5995 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 5996 return rval; 5997 } 5998 5999 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 6000 { 6001 struct scsi_qla_host *ha = to_qla_host(shost); 6002 int rval = QLA_SUCCESS; 6003 6004 if (ql4xdontresethba) { 6005 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 6006 __func__)); 6007 rval = -EPERM; 6008 goto exit_host_reset; 6009 } 6010 6011 rval = qla4xxx_wait_for_hba_online(ha); 6012 if (rval != QLA_SUCCESS) { 6013 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unable to reset host " 6014 "adapter\n", __func__)); 6015 rval = -EIO; 6016 goto exit_host_reset; 6017 } 6018 6019 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 6020 goto recover_adapter; 6021 6022 switch (reset_type) { 6023 case SCSI_ADAPTER_RESET: 6024 set_bit(DPC_RESET_HA, &ha->dpc_flags); 6025 break; 6026 case SCSI_FIRMWARE_RESET: 6027 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 6028 if (is_qla80XX(ha)) 6029 /* set firmware context reset */ 6030 set_bit(DPC_RESET_HA_FW_CONTEXT, 6031 &ha->dpc_flags); 6032 else { 6033 rval = qla4xxx_context_reset(ha); 6034 goto exit_host_reset; 6035 } 6036 } 6037 break; 6038 } 6039 6040 recover_adapter: 6041 rval = qla4xxx_recover_adapter(ha); 6042 if (rval != QLA_SUCCESS) { 6043 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 6044 __func__)); 6045 rval = -EIO; 6046 } 6047 6048 exit_host_reset: 6049 return rval; 6050 } 6051 6052 /* PCI AER driver recovers from all correctable errors w/o 6053 * driver intervention. For uncorrectable errors PCI AER 6054 * driver calls the following device driver's callbacks 6055 * 6056 * - Fatal Errors - link_reset 6057 * - Non-Fatal Errors - driver's pci_error_detected() which 6058 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 6059 * 6060 * PCI AER driver calls 6061 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 6062 * returns RECOVERED or NEED_RESET if fw_hung 6063 * NEED_RESET - driver's slot_reset() 6064 * DISCONNECT - device is dead & cannot recover 6065 * RECOVERED - driver's pci_resume() 6066 */ 6067 static pci_ers_result_t 6068 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 6069 { 6070 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 6071 6072 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 6073 ha->host_no, __func__, state); 6074 6075 if (!is_aer_supported(ha)) 6076 return PCI_ERS_RESULT_NONE; 6077 6078 switch (state) { 6079 case pci_channel_io_normal: 6080 clear_bit(AF_EEH_BUSY, &ha->flags); 6081 return PCI_ERS_RESULT_CAN_RECOVER; 6082 case pci_channel_io_frozen: 6083 set_bit(AF_EEH_BUSY, &ha->flags); 6084 qla4xxx_mailbox_premature_completion(ha); 6085 qla4xxx_free_irqs(ha); 6086 pci_disable_device(pdev); 6087 /* Return back all IOs */ 6088 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 6089 return PCI_ERS_RESULT_NEED_RESET; 6090 case pci_channel_io_perm_failure: 6091 set_bit(AF_EEH_BUSY, &ha->flags); 6092 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 6093 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 6094 return PCI_ERS_RESULT_DISCONNECT; 6095 } 6096 return PCI_ERS_RESULT_NEED_RESET; 6097 } 6098 6099 /** 6100 * qla4xxx_pci_mmio_enabled() gets called if 6101 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 6102 * and read/write to the device still works. 6103 **/ 6104 static pci_ers_result_t 6105 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 6106 { 6107 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 6108 6109 if (!is_aer_supported(ha)) 6110 return PCI_ERS_RESULT_NONE; 6111 6112 return PCI_ERS_RESULT_RECOVERED; 6113 } 6114 6115 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 6116 { 6117 uint32_t rval = QLA_ERROR; 6118 uint32_t ret = 0; 6119 int fn; 6120 struct pci_dev *other_pdev = NULL; 6121 6122 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 6123 6124 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 6125 6126 if (test_bit(AF_ONLINE, &ha->flags)) { 6127 clear_bit(AF_ONLINE, &ha->flags); 6128 clear_bit(AF_LINK_UP, &ha->flags); 6129 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 6130 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 6131 } 6132 6133 fn = PCI_FUNC(ha->pdev->devfn); 6134 while (fn > 0) { 6135 fn--; 6136 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 6137 "func %x\n", ha->host_no, __func__, fn); 6138 /* Get the pci device given the domain, bus, 6139 * slot/function number */ 6140 other_pdev = 6141 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 6142 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 6143 fn)); 6144 6145 if (!other_pdev) 6146 continue; 6147 6148 if (atomic_read(&other_pdev->enable_cnt)) { 6149 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 6150 "func in enabled state%x\n", ha->host_no, 6151 __func__, fn); 6152 pci_dev_put(other_pdev); 6153 break; 6154 } 6155 pci_dev_put(other_pdev); 6156 } 6157 6158 /* The first function on the card, the reset owner will 6159 * start & initialize the firmware. The other functions 6160 * on the card will reset the firmware context 6161 */ 6162 if (!fn) { 6163 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 6164 "0x%x is the owner\n", ha->host_no, __func__, 6165 ha->pdev->devfn); 6166 6167 ha->isp_ops->idc_lock(ha); 6168 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 6169 QLA8XXX_DEV_COLD); 6170 ha->isp_ops->idc_unlock(ha); 6171 6172 rval = qla4_8xxx_update_idc_reg(ha); 6173 if (rval == QLA_ERROR) { 6174 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 6175 ha->host_no, __func__); 6176 ha->isp_ops->idc_lock(ha); 6177 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 6178 QLA8XXX_DEV_FAILED); 6179 ha->isp_ops->idc_unlock(ha); 6180 goto exit_error_recovery; 6181 } 6182 6183 clear_bit(AF_FW_RECOVERY, &ha->flags); 6184 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 6185 6186 if (rval != QLA_SUCCESS) { 6187 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 6188 "FAILED\n", ha->host_no, __func__); 6189 ha->isp_ops->idc_lock(ha); 6190 qla4_8xxx_clear_drv_active(ha); 6191 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 6192 QLA8XXX_DEV_FAILED); 6193 ha->isp_ops->idc_unlock(ha); 6194 } else { 6195 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 6196 "READY\n", ha->host_no, __func__); 6197 ha->isp_ops->idc_lock(ha); 6198 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 6199 QLA8XXX_DEV_READY); 6200 /* Clear driver state register */ 6201 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 6202 qla4_8xxx_set_drv_active(ha); 6203 ha->isp_ops->idc_unlock(ha); 6204 ret = qla4xxx_request_irqs(ha); 6205 if (ret) { 6206 ql4_printk(KERN_WARNING, ha, "Failed to " 6207 "reserve interrupt %d already in use.\n", 6208 ha->pdev->irq); 6209 rval = QLA_ERROR; 6210 } else { 6211 ha->isp_ops->enable_intrs(ha); 6212 rval = QLA_SUCCESS; 6213 } 6214 } 6215 } else { 6216 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 6217 "the reset owner\n", ha->host_no, __func__, 6218 ha->pdev->devfn); 6219 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 6220 QLA8XXX_DEV_READY)) { 6221 clear_bit(AF_FW_RECOVERY, &ha->flags); 6222 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 6223 if (rval == QLA_SUCCESS) { 6224 ret = qla4xxx_request_irqs(ha); 6225 if (ret) { 6226 ql4_printk(KERN_WARNING, ha, "Failed to" 6227 " reserve interrupt %d already in" 6228 " use.\n", ha->pdev->irq); 6229 rval = QLA_ERROR; 6230 } else { 6231 ha->isp_ops->enable_intrs(ha); 6232 rval = QLA_SUCCESS; 6233 } 6234 } 6235 ha->isp_ops->idc_lock(ha); 6236 qla4_8xxx_set_drv_active(ha); 6237 ha->isp_ops->idc_unlock(ha); 6238 } 6239 } 6240 exit_error_recovery: 6241 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 6242 return rval; 6243 } 6244 6245 static pci_ers_result_t 6246 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 6247 { 6248 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 6249 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 6250 int rc; 6251 6252 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 6253 ha->host_no, __func__); 6254 6255 if (!is_aer_supported(ha)) 6256 return PCI_ERS_RESULT_NONE; 6257 6258 /* Restore the saved state of PCIe device - 6259 * BAR registers, PCI Config space, PCIX, MSI, 6260 * IOV states 6261 */ 6262 pci_restore_state(pdev); 6263 6264 /* pci_restore_state() clears the saved_state flag of the device 6265 * save restored state which resets saved_state flag 6266 */ 6267 pci_save_state(pdev); 6268 6269 /* Initialize device or resume if in suspended state */ 6270 rc = pci_enable_device(pdev); 6271 if (rc) { 6272 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 6273 "device after reset\n", ha->host_no, __func__); 6274 goto exit_slot_reset; 6275 } 6276 6277 ha->isp_ops->disable_intrs(ha); 6278 6279 if (is_qla80XX(ha)) { 6280 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 6281 ret = PCI_ERS_RESULT_RECOVERED; 6282 goto exit_slot_reset; 6283 } else 6284 goto exit_slot_reset; 6285 } 6286 6287 exit_slot_reset: 6288 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 6289 "device after reset\n", ha->host_no, __func__, ret); 6290 return ret; 6291 } 6292 6293 static void 6294 qla4xxx_pci_resume(struct pci_dev *pdev) 6295 { 6296 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 6297 int ret; 6298 6299 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 6300 ha->host_no, __func__); 6301 6302 ret = qla4xxx_wait_for_hba_online(ha); 6303 if (ret != QLA_SUCCESS) { 6304 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 6305 "resume I/O from slot/link_reset\n", ha->host_no, 6306 __func__); 6307 } 6308 6309 pci_cleanup_aer_uncorrect_error_status(pdev); 6310 clear_bit(AF_EEH_BUSY, &ha->flags); 6311 } 6312 6313 static const struct pci_error_handlers qla4xxx_err_handler = { 6314 .error_detected = qla4xxx_pci_error_detected, 6315 .mmio_enabled = qla4xxx_pci_mmio_enabled, 6316 .slot_reset = qla4xxx_pci_slot_reset, 6317 .resume = qla4xxx_pci_resume, 6318 }; 6319 6320 static struct pci_device_id qla4xxx_pci_tbl[] = { 6321 { 6322 .vendor = PCI_VENDOR_ID_QLOGIC, 6323 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 6324 .subvendor = PCI_ANY_ID, 6325 .subdevice = PCI_ANY_ID, 6326 }, 6327 { 6328 .vendor = PCI_VENDOR_ID_QLOGIC, 6329 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 6330 .subvendor = PCI_ANY_ID, 6331 .subdevice = PCI_ANY_ID, 6332 }, 6333 { 6334 .vendor = PCI_VENDOR_ID_QLOGIC, 6335 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 6336 .subvendor = PCI_ANY_ID, 6337 .subdevice = PCI_ANY_ID, 6338 }, 6339 { 6340 .vendor = PCI_VENDOR_ID_QLOGIC, 6341 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 6342 .subvendor = PCI_ANY_ID, 6343 .subdevice = PCI_ANY_ID, 6344 }, 6345 { 6346 .vendor = PCI_VENDOR_ID_QLOGIC, 6347 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 6348 .subvendor = PCI_ANY_ID, 6349 .subdevice = PCI_ANY_ID, 6350 }, 6351 {0, 0}, 6352 }; 6353 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 6354 6355 static struct pci_driver qla4xxx_pci_driver = { 6356 .name = DRIVER_NAME, 6357 .id_table = qla4xxx_pci_tbl, 6358 .probe = qla4xxx_probe_adapter, 6359 .remove = qla4xxx_remove_adapter, 6360 .err_handler = &qla4xxx_err_handler, 6361 }; 6362 6363 static int __init qla4xxx_module_init(void) 6364 { 6365 int ret; 6366 6367 /* Allocate cache for SRBs. */ 6368 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 6369 SLAB_HWCACHE_ALIGN, NULL); 6370 if (srb_cachep == NULL) { 6371 printk(KERN_ERR 6372 "%s: Unable to allocate SRB cache..." 6373 "Failing load!\n", DRIVER_NAME); 6374 ret = -ENOMEM; 6375 goto no_srp_cache; 6376 } 6377 6378 /* Derive version string. */ 6379 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 6380 if (ql4xextended_error_logging) 6381 strcat(qla4xxx_version_str, "-debug"); 6382 6383 qla4xxx_scsi_transport = 6384 iscsi_register_transport(&qla4xxx_iscsi_transport); 6385 if (!qla4xxx_scsi_transport){ 6386 ret = -ENODEV; 6387 goto release_srb_cache; 6388 } 6389 6390 ret = pci_register_driver(&qla4xxx_pci_driver); 6391 if (ret) 6392 goto unregister_transport; 6393 6394 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 6395 return 0; 6396 6397 unregister_transport: 6398 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6399 release_srb_cache: 6400 kmem_cache_destroy(srb_cachep); 6401 no_srp_cache: 6402 return ret; 6403 } 6404 6405 static void __exit qla4xxx_module_exit(void) 6406 { 6407 pci_unregister_driver(&qla4xxx_pci_driver); 6408 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 6409 kmem_cache_destroy(srb_cachep); 6410 } 6411 6412 module_init(qla4xxx_module_init); 6413 module_exit(qla4xxx_module_exit); 6414 6415 MODULE_AUTHOR("QLogic Corporation"); 6416 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 6417 MODULE_LICENSE("GPL"); 6418 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 6419