1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * QLogic iSCSI HBA Driver 4 * Copyright (c) 2003-2013 QLogic Corporation 5 */ 6 #include <linux/moduleparam.h> 7 #include <linux/slab.h> 8 #include <linux/blkdev.h> 9 #include <linux/iscsi_boot_sysfs.h> 10 #include <linux/inet.h> 11 12 #include <scsi/scsi_tcq.h> 13 #include <scsi/scsicam.h> 14 15 #include "ql4_def.h" 16 #include "ql4_version.h" 17 #include "ql4_glbl.h" 18 #include "ql4_dbg.h" 19 #include "ql4_inline.h" 20 #include "ql4_83xx.h" 21 22 /* 23 * Driver version 24 */ 25 static char qla4xxx_version_str[40]; 26 27 /* 28 * SRB allocation cache 29 */ 30 static struct kmem_cache *srb_cachep; 31 32 /* 33 * Module parameter information and variables 34 */ 35 static int ql4xdisablesysfsboot = 1; 36 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); 37 MODULE_PARM_DESC(ql4xdisablesysfsboot, 38 " Set to disable exporting boot targets to sysfs.\n" 39 "\t\t 0 - Export boot targets\n" 40 "\t\t 1 - Do not export boot targets (Default)"); 41 42 int ql4xdontresethba; 43 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 44 MODULE_PARM_DESC(ql4xdontresethba, 45 " Don't reset the HBA for driver recovery.\n" 46 "\t\t 0 - It will reset HBA (Default)\n" 47 "\t\t 1 - It will NOT reset HBA"); 48 49 int ql4xextended_error_logging; 50 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 51 MODULE_PARM_DESC(ql4xextended_error_logging, 52 " Option to enable extended error logging.\n" 53 "\t\t 0 - no logging (Default)\n" 54 "\t\t 2 - debug logging"); 55 56 int ql4xenablemsix = 1; 57 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 58 MODULE_PARM_DESC(ql4xenablemsix, 59 " Set to enable MSI or MSI-X interrupt mechanism.\n" 60 "\t\t 0 = enable INTx interrupt mechanism.\n" 61 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n" 62 "\t\t 2 = enable MSI interrupt mechanism."); 63 64 #define QL4_DEF_QDEPTH 32 65 static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 66 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 67 MODULE_PARM_DESC(ql4xmaxqdepth, 68 " Maximum queue depth to report for target devices.\n" 69 "\t\t Default: 32."); 70 71 static int ql4xqfulltracking = 1; 72 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR); 73 MODULE_PARM_DESC(ql4xqfulltracking, 74 " Enable or disable dynamic tracking and adjustment of\n" 75 "\t\t scsi device queue depth.\n" 76 "\t\t 0 - Disable.\n" 77 "\t\t 1 - Enable. (Default)"); 78 79 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 80 module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 81 MODULE_PARM_DESC(ql4xsess_recovery_tmo, 82 " Target Session Recovery Timeout.\n" 83 "\t\t Default: 120 sec."); 84 85 int ql4xmdcapmask = 0; 86 module_param(ql4xmdcapmask, int, S_IRUGO); 87 MODULE_PARM_DESC(ql4xmdcapmask, 88 " Set the Minidump driver capture mask level.\n" 89 "\t\t Default is 0 (firmware default capture mask)\n" 90 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF"); 91 92 int ql4xenablemd = 1; 93 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR); 94 MODULE_PARM_DESC(ql4xenablemd, 95 " Set to enable minidump.\n" 96 "\t\t 0 - disable minidump\n" 97 "\t\t 1 - enable minidump (Default)"); 98 99 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 100 /* 101 * SCSI host template entry points 102 */ 103 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 104 105 /* 106 * iSCSI template entry points 107 */ 108 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 109 enum iscsi_param param, char *buf); 110 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 111 enum iscsi_param param, char *buf); 112 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 113 enum iscsi_host_param param, char *buf); 114 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, 115 uint32_t len); 116 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 117 enum iscsi_param_type param_type, 118 int param, char *buf); 119 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 120 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 121 struct sockaddr *dst_addr, 122 int non_blocking); 123 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 124 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 125 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 126 enum iscsi_param param, char *buf); 127 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 128 static struct iscsi_cls_conn * 129 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 130 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 131 struct iscsi_cls_conn *cls_conn, 132 uint64_t transport_fd, int is_leading); 133 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 134 static struct iscsi_cls_session * 135 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 136 uint16_t qdepth, uint32_t initial_cmdsn); 137 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 138 static void qla4xxx_task_work(struct work_struct *wdata); 139 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 140 static int qla4xxx_task_xmit(struct iscsi_task *); 141 static void qla4xxx_task_cleanup(struct iscsi_task *); 142 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 143 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 144 struct iscsi_stats *stats); 145 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 146 uint32_t iface_type, uint32_t payload_size, 147 uint32_t pid, struct sockaddr *dst_addr); 148 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 149 uint32_t *num_entries, char *buf); 150 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx); 151 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, 152 int len); 153 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len); 154 155 /* 156 * SCSI host template entry points 157 */ 158 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 159 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 160 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 161 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 162 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 163 static int qla4xxx_slave_alloc(struct scsi_device *device); 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); 166 167 /* 168 * iSCSI Flash DDB sysfs entry points 169 */ 170 static int 171 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 172 struct iscsi_bus_flash_conn *fnode_conn, 173 void *data, int len); 174 static int 175 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 176 int param, char *buf); 177 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 178 int len); 179 static int 180 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess); 181 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 182 struct iscsi_bus_flash_conn *fnode_conn); 183 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 184 struct iscsi_bus_flash_conn *fnode_conn); 185 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess); 186 187 static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 188 QLA82XX_LEGACY_INTR_CONFIG; 189 190 static const uint32_t qla4_82xx_reg_tbl[] = { 191 QLA82XX_PEG_HALT_STATUS1, 192 QLA82XX_PEG_HALT_STATUS2, 193 QLA82XX_PEG_ALIVE_COUNTER, 194 QLA82XX_CRB_DRV_ACTIVE, 195 QLA82XX_CRB_DEV_STATE, 196 QLA82XX_CRB_DRV_STATE, 197 QLA82XX_CRB_DRV_SCRATCH, 198 QLA82XX_CRB_DEV_PART_INFO, 199 QLA82XX_CRB_DRV_IDC_VERSION, 200 QLA82XX_FW_VERSION_MAJOR, 201 QLA82XX_FW_VERSION_MINOR, 202 QLA82XX_FW_VERSION_SUB, 203 CRB_CMDPEG_STATE, 204 CRB_TEMP_STATE, 205 }; 206 207 static const uint32_t qla4_83xx_reg_tbl[] = { 208 QLA83XX_PEG_HALT_STATUS1, 209 QLA83XX_PEG_HALT_STATUS2, 210 QLA83XX_PEG_ALIVE_COUNTER, 211 QLA83XX_CRB_DRV_ACTIVE, 212 QLA83XX_CRB_DEV_STATE, 213 QLA83XX_CRB_DRV_STATE, 214 QLA83XX_CRB_DRV_SCRATCH, 215 QLA83XX_CRB_DEV_PART_INFO1, 216 QLA83XX_CRB_IDC_VER_MAJOR, 217 QLA83XX_FW_VER_MAJOR, 218 QLA83XX_FW_VER_MINOR, 219 QLA83XX_FW_VER_SUB, 220 QLA83XX_CMDPEG_STATE, 221 QLA83XX_ASIC_TEMP, 222 }; 223 224 static struct scsi_host_template qla4xxx_driver_template = { 225 .module = THIS_MODULE, 226 .name = DRIVER_NAME, 227 .proc_name = DRIVER_NAME, 228 .queuecommand = qla4xxx_queuecommand, 229 .cmd_size = sizeof(struct qla4xxx_cmd_priv), 230 231 .eh_abort_handler = qla4xxx_eh_abort, 232 .eh_device_reset_handler = qla4xxx_eh_device_reset, 233 .eh_target_reset_handler = qla4xxx_eh_target_reset, 234 .eh_host_reset_handler = qla4xxx_eh_host_reset, 235 .eh_timed_out = qla4xxx_eh_cmd_timed_out, 236 237 .slave_alloc = qla4xxx_slave_alloc, 238 .change_queue_depth = scsi_change_queue_depth, 239 240 .this_id = -1, 241 .cmd_per_lun = 3, 242 .sg_tablesize = SG_ALL, 243 244 .max_sectors = 0xFFFF, 245 .shost_groups = qla4xxx_host_groups, 246 .host_reset = qla4xxx_host_reset, 247 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 248 }; 249 250 static struct iscsi_transport qla4xxx_iscsi_transport = { 251 .owner = THIS_MODULE, 252 .name = DRIVER_NAME, 253 .caps = CAP_TEXT_NEGO | 254 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 255 CAP_DATADGST | CAP_LOGIN_OFFLOAD | 256 CAP_MULTI_R2T, 257 .attr_is_visible = qla4_attr_is_visible, 258 .create_session = qla4xxx_session_create, 259 .destroy_session = qla4xxx_session_destroy, 260 .start_conn = qla4xxx_conn_start, 261 .create_conn = qla4xxx_conn_create, 262 .bind_conn = qla4xxx_conn_bind, 263 .unbind_conn = iscsi_conn_unbind, 264 .stop_conn = iscsi_conn_stop, 265 .destroy_conn = qla4xxx_conn_destroy, 266 .set_param = iscsi_set_param, 267 .get_conn_param = qla4xxx_conn_get_param, 268 .get_session_param = qla4xxx_session_get_param, 269 .get_ep_param = qla4xxx_get_ep_param, 270 .ep_connect = qla4xxx_ep_connect, 271 .ep_poll = qla4xxx_ep_poll, 272 .ep_disconnect = qla4xxx_ep_disconnect, 273 .get_stats = qla4xxx_conn_get_stats, 274 .send_pdu = iscsi_conn_send_pdu, 275 .xmit_task = qla4xxx_task_xmit, 276 .cleanup_task = qla4xxx_task_cleanup, 277 .alloc_pdu = qla4xxx_alloc_pdu, 278 279 .get_host_param = qla4xxx_host_get_param, 280 .set_iface_param = qla4xxx_iface_set_param, 281 .get_iface_param = qla4xxx_get_iface_param, 282 .bsg_request = qla4xxx_bsg_request, 283 .send_ping = qla4xxx_send_ping, 284 .get_chap = qla4xxx_get_chap_list, 285 .delete_chap = qla4xxx_delete_chap, 286 .set_chap = qla4xxx_set_chap_entry, 287 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param, 288 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param, 289 .new_flashnode = qla4xxx_sysfs_ddb_add, 290 .del_flashnode = qla4xxx_sysfs_ddb_delete, 291 .login_flashnode = qla4xxx_sysfs_ddb_login, 292 .logout_flashnode = qla4xxx_sysfs_ddb_logout, 293 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid, 294 .get_host_stats = qla4xxx_get_host_stats, 295 }; 296 297 static struct scsi_transport_template *qla4xxx_scsi_transport; 298 299 static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha) 300 { 301 u32 reg_val = 0; 302 int rval = QLA_SUCCESS; 303 304 if (is_qla8022(ha)) 305 reg_val = readl(&ha->qla4_82xx_reg->host_status); 306 else if (is_qla8032(ha) || is_qla8042(ha)) 307 reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER); 308 else 309 reg_val = readw(&ha->reg->ctrl_status); 310 311 if (reg_val == QL4_ISP_REG_DISCONNECT) 312 rval = QLA_ERROR; 313 314 return rval; 315 } 316 317 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 318 uint32_t iface_type, uint32_t payload_size, 319 uint32_t pid, struct sockaddr *dst_addr) 320 { 321 struct scsi_qla_host *ha = to_qla_host(shost); 322 struct sockaddr_in *addr; 323 struct sockaddr_in6 *addr6; 324 uint32_t options = 0; 325 uint8_t ipaddr[IPv6_ADDR_LEN]; 326 int rval; 327 328 memset(ipaddr, 0, IPv6_ADDR_LEN); 329 /* IPv4 to IPv4 */ 330 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && 331 (dst_addr->sa_family == AF_INET)) { 332 addr = (struct sockaddr_in *)dst_addr; 333 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); 334 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " 335 "dest: %pI4\n", __func__, 336 &ha->ip_config.ip_address, ipaddr)); 337 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, 338 ipaddr); 339 if (rval) 340 rval = -EINVAL; 341 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && 342 (dst_addr->sa_family == AF_INET6)) { 343 /* IPv6 to IPv6 */ 344 addr6 = (struct sockaddr_in6 *)dst_addr; 345 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); 346 347 options |= PING_IPV6_PROTOCOL_ENABLE; 348 349 /* Ping using LinkLocal address */ 350 if ((iface_num == 0) || (iface_num == 1)) { 351 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " 352 "src: %pI6 dest: %pI6\n", __func__, 353 &ha->ip_config.ipv6_link_local_addr, 354 ipaddr)); 355 options |= PING_IPV6_LINKLOCAL_ADDR; 356 rval = qla4xxx_ping_iocb(ha, options, payload_size, 357 pid, ipaddr); 358 } else { 359 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " 360 "not supported\n", __func__, iface_num); 361 rval = -ENOSYS; 362 goto exit_send_ping; 363 } 364 365 /* 366 * If ping using LinkLocal address fails, try ping using 367 * IPv6 address 368 */ 369 if (rval != QLA_SUCCESS) { 370 options &= ~PING_IPV6_LINKLOCAL_ADDR; 371 if (iface_num == 0) { 372 options |= PING_IPV6_ADDR0; 373 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 374 "Ping src: %pI6 " 375 "dest: %pI6\n", __func__, 376 &ha->ip_config.ipv6_addr0, 377 ipaddr)); 378 } else if (iface_num == 1) { 379 options |= PING_IPV6_ADDR1; 380 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 381 "Ping src: %pI6 " 382 "dest: %pI6\n", __func__, 383 &ha->ip_config.ipv6_addr1, 384 ipaddr)); 385 } 386 rval = qla4xxx_ping_iocb(ha, options, payload_size, 387 pid, ipaddr); 388 if (rval) 389 rval = -EINVAL; 390 } 391 } else 392 rval = -ENOSYS; 393 exit_send_ping: 394 return rval; 395 } 396 397 static umode_t qla4_attr_is_visible(int param_type, int param) 398 { 399 switch (param_type) { 400 case ISCSI_HOST_PARAM: 401 switch (param) { 402 case ISCSI_HOST_PARAM_HWADDRESS: 403 case ISCSI_HOST_PARAM_IPADDRESS: 404 case ISCSI_HOST_PARAM_INITIATOR_NAME: 405 case ISCSI_HOST_PARAM_PORT_STATE: 406 case ISCSI_HOST_PARAM_PORT_SPEED: 407 return S_IRUGO; 408 default: 409 return 0; 410 } 411 case ISCSI_PARAM: 412 switch (param) { 413 case ISCSI_PARAM_PERSISTENT_ADDRESS: 414 case ISCSI_PARAM_PERSISTENT_PORT: 415 case ISCSI_PARAM_CONN_ADDRESS: 416 case ISCSI_PARAM_CONN_PORT: 417 case ISCSI_PARAM_TARGET_NAME: 418 case ISCSI_PARAM_TPGT: 419 case ISCSI_PARAM_TARGET_ALIAS: 420 case ISCSI_PARAM_MAX_BURST: 421 case ISCSI_PARAM_MAX_R2T: 422 case ISCSI_PARAM_FIRST_BURST: 423 case ISCSI_PARAM_MAX_RECV_DLENGTH: 424 case ISCSI_PARAM_MAX_XMIT_DLENGTH: 425 case ISCSI_PARAM_IFACE_NAME: 426 case ISCSI_PARAM_CHAP_OUT_IDX: 427 case ISCSI_PARAM_CHAP_IN_IDX: 428 case ISCSI_PARAM_USERNAME: 429 case ISCSI_PARAM_PASSWORD: 430 case ISCSI_PARAM_USERNAME_IN: 431 case ISCSI_PARAM_PASSWORD_IN: 432 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE: 433 case ISCSI_PARAM_DISCOVERY_SESS: 434 case ISCSI_PARAM_PORTAL_TYPE: 435 case ISCSI_PARAM_CHAP_AUTH_EN: 436 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN: 437 case ISCSI_PARAM_BIDI_CHAP_EN: 438 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL: 439 case ISCSI_PARAM_DEF_TIME2WAIT: 440 case ISCSI_PARAM_DEF_TIME2RETAIN: 441 case ISCSI_PARAM_HDRDGST_EN: 442 case ISCSI_PARAM_DATADGST_EN: 443 case ISCSI_PARAM_INITIAL_R2T_EN: 444 case ISCSI_PARAM_IMM_DATA_EN: 445 case ISCSI_PARAM_PDU_INORDER_EN: 446 case ISCSI_PARAM_DATASEQ_INORDER_EN: 447 case ISCSI_PARAM_MAX_SEGMENT_SIZE: 448 case ISCSI_PARAM_TCP_TIMESTAMP_STAT: 449 case ISCSI_PARAM_TCP_WSF_DISABLE: 450 case ISCSI_PARAM_TCP_NAGLE_DISABLE: 451 case ISCSI_PARAM_TCP_TIMER_SCALE: 452 case ISCSI_PARAM_TCP_TIMESTAMP_EN: 453 case ISCSI_PARAM_TCP_XMIT_WSF: 454 case ISCSI_PARAM_TCP_RECV_WSF: 455 case ISCSI_PARAM_IP_FRAGMENT_DISABLE: 456 case ISCSI_PARAM_IPV4_TOS: 457 case ISCSI_PARAM_IPV6_TC: 458 case ISCSI_PARAM_IPV6_FLOW_LABEL: 459 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6: 460 case ISCSI_PARAM_KEEPALIVE_TMO: 461 case ISCSI_PARAM_LOCAL_PORT: 462 case ISCSI_PARAM_ISID: 463 case ISCSI_PARAM_TSID: 464 case ISCSI_PARAM_DEF_TASKMGMT_TMO: 465 case ISCSI_PARAM_ERL: 466 case ISCSI_PARAM_STATSN: 467 case ISCSI_PARAM_EXP_STATSN: 468 case ISCSI_PARAM_DISCOVERY_PARENT_IDX: 469 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE: 470 case ISCSI_PARAM_LOCAL_IPADDR: 471 return S_IRUGO; 472 default: 473 return 0; 474 } 475 case ISCSI_NET_PARAM: 476 switch (param) { 477 case ISCSI_NET_PARAM_IPV4_ADDR: 478 case ISCSI_NET_PARAM_IPV4_SUBNET: 479 case ISCSI_NET_PARAM_IPV4_GW: 480 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 481 case ISCSI_NET_PARAM_IFACE_ENABLE: 482 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 483 case ISCSI_NET_PARAM_IPV6_ADDR: 484 case ISCSI_NET_PARAM_IPV6_ROUTER: 485 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 486 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 487 case ISCSI_NET_PARAM_VLAN_ID: 488 case ISCSI_NET_PARAM_VLAN_PRIORITY: 489 case ISCSI_NET_PARAM_VLAN_ENABLED: 490 case ISCSI_NET_PARAM_MTU: 491 case ISCSI_NET_PARAM_PORT: 492 case ISCSI_NET_PARAM_IPADDR_STATE: 493 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 494 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 495 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 496 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 497 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 498 case ISCSI_NET_PARAM_TCP_WSF: 499 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 500 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 501 case ISCSI_NET_PARAM_CACHE_ID: 502 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 503 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 504 case ISCSI_NET_PARAM_IPV4_TOS_EN: 505 case ISCSI_NET_PARAM_IPV4_TOS: 506 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 507 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 508 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 509 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 510 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 511 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 512 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 513 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 514 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 515 case ISCSI_NET_PARAM_REDIRECT_EN: 516 case ISCSI_NET_PARAM_IPV4_TTL: 517 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 518 case ISCSI_NET_PARAM_IPV6_MLD_EN: 519 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 520 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 521 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 522 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 523 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 524 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 525 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 526 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 527 return S_IRUGO; 528 default: 529 return 0; 530 } 531 case ISCSI_IFACE_PARAM: 532 switch (param) { 533 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 534 case ISCSI_IFACE_PARAM_HDRDGST_EN: 535 case ISCSI_IFACE_PARAM_DATADGST_EN: 536 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 537 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 538 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 539 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 540 case ISCSI_IFACE_PARAM_ERL: 541 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 542 case ISCSI_IFACE_PARAM_FIRST_BURST: 543 case ISCSI_IFACE_PARAM_MAX_R2T: 544 case ISCSI_IFACE_PARAM_MAX_BURST: 545 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 546 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 547 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 548 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 549 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 550 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 551 return S_IRUGO; 552 default: 553 return 0; 554 } 555 case ISCSI_FLASHNODE_PARAM: 556 switch (param) { 557 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 558 case ISCSI_FLASHNODE_PORTAL_TYPE: 559 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 560 case ISCSI_FLASHNODE_DISCOVERY_SESS: 561 case ISCSI_FLASHNODE_ENTRY_EN: 562 case ISCSI_FLASHNODE_HDR_DGST_EN: 563 case ISCSI_FLASHNODE_DATA_DGST_EN: 564 case ISCSI_FLASHNODE_IMM_DATA_EN: 565 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 566 case ISCSI_FLASHNODE_DATASEQ_INORDER: 567 case ISCSI_FLASHNODE_PDU_INORDER: 568 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 569 case ISCSI_FLASHNODE_SNACK_REQ_EN: 570 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 571 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 572 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 573 case ISCSI_FLASHNODE_ERL: 574 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 575 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 576 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 577 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 578 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 579 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 580 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 581 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 582 case ISCSI_FLASHNODE_FIRST_BURST: 583 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 584 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 585 case ISCSI_FLASHNODE_MAX_R2T: 586 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 587 case ISCSI_FLASHNODE_ISID: 588 case ISCSI_FLASHNODE_TSID: 589 case ISCSI_FLASHNODE_PORT: 590 case ISCSI_FLASHNODE_MAX_BURST: 591 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 592 case ISCSI_FLASHNODE_IPADDR: 593 case ISCSI_FLASHNODE_ALIAS: 594 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 595 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 596 case ISCSI_FLASHNODE_LOCAL_PORT: 597 case ISCSI_FLASHNODE_IPV4_TOS: 598 case ISCSI_FLASHNODE_IPV6_TC: 599 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 600 case ISCSI_FLASHNODE_NAME: 601 case ISCSI_FLASHNODE_TPGT: 602 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 603 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 604 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 605 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 606 case ISCSI_FLASHNODE_TCP_RECV_WSF: 607 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 608 case ISCSI_FLASHNODE_USERNAME: 609 case ISCSI_FLASHNODE_PASSWORD: 610 case ISCSI_FLASHNODE_STATSN: 611 case ISCSI_FLASHNODE_EXP_STATSN: 612 case ISCSI_FLASHNODE_IS_BOOT_TGT: 613 return S_IRUGO; 614 default: 615 return 0; 616 } 617 } 618 619 return 0; 620 } 621 622 /** 623 * qla4xxx_create_chap_list - Create CHAP list from FLASH 624 * @ha: pointer to adapter structure 625 * 626 * Read flash and make a list of CHAP entries, during login when a CHAP entry 627 * is received, it will be checked in this list. If entry exist then the CHAP 628 * entry index is set in the DDB. If CHAP entry does not exist in this list 629 * then a new entry is added in FLASH in CHAP table and the index obtained is 630 * used in the DDB. 631 **/ 632 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 633 { 634 int rval = 0; 635 uint8_t *chap_flash_data = NULL; 636 uint32_t offset; 637 dma_addr_t chap_dma; 638 uint32_t chap_size = 0; 639 640 if (is_qla40XX(ha)) 641 chap_size = MAX_CHAP_ENTRIES_40XX * 642 sizeof(struct ql4_chap_table); 643 else /* Single region contains CHAP info for both 644 * ports which is divided into half for each port. 645 */ 646 chap_size = ha->hw.flt_chap_size / 2; 647 648 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 649 &chap_dma, GFP_KERNEL); 650 if (!chap_flash_data) { 651 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 652 return; 653 } 654 655 if (is_qla40XX(ha)) { 656 offset = FLASH_CHAP_OFFSET; 657 } else { 658 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 659 if (ha->port_num == 1) 660 offset += chap_size; 661 } 662 663 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 664 if (rval != QLA_SUCCESS) 665 goto exit_chap_list; 666 667 if (ha->chap_list == NULL) 668 ha->chap_list = vmalloc(chap_size); 669 if (ha->chap_list == NULL) { 670 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 671 goto exit_chap_list; 672 } 673 674 memset(ha->chap_list, 0, chap_size); 675 memcpy(ha->chap_list, chap_flash_data, chap_size); 676 677 exit_chap_list: 678 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma); 679 } 680 681 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha, 682 int16_t chap_index, 683 struct ql4_chap_table **chap_entry) 684 { 685 int rval = QLA_ERROR; 686 int max_chap_entries; 687 688 if (!ha->chap_list) { 689 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 690 goto exit_get_chap; 691 } 692 693 if (is_qla80XX(ha)) 694 max_chap_entries = (ha->hw.flt_chap_size / 2) / 695 sizeof(struct ql4_chap_table); 696 else 697 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 698 699 if (chap_index > max_chap_entries) { 700 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n"); 701 goto exit_get_chap; 702 } 703 704 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index; 705 if ((*chap_entry)->cookie != 706 cpu_to_le16(CHAP_VALID_COOKIE)) { 707 *chap_entry = NULL; 708 } else { 709 rval = QLA_SUCCESS; 710 } 711 712 exit_get_chap: 713 return rval; 714 } 715 716 /** 717 * qla4xxx_find_free_chap_index - Find the first free chap index 718 * @ha: pointer to adapter structure 719 * @chap_index: CHAP index to be returned 720 * 721 * Find the first free chap index available in the chap table 722 * 723 * Note: Caller should acquire the chap lock before getting here. 724 **/ 725 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha, 726 uint16_t *chap_index) 727 { 728 int i, rval; 729 int free_index = -1; 730 int max_chap_entries = 0; 731 struct ql4_chap_table *chap_table; 732 733 if (is_qla80XX(ha)) 734 max_chap_entries = (ha->hw.flt_chap_size / 2) / 735 sizeof(struct ql4_chap_table); 736 else 737 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 738 739 if (!ha->chap_list) { 740 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 741 rval = QLA_ERROR; 742 goto exit_find_chap; 743 } 744 745 for (i = 0; i < max_chap_entries; i++) { 746 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 747 748 if ((chap_table->cookie != 749 cpu_to_le16(CHAP_VALID_COOKIE)) && 750 (i > MAX_RESRV_CHAP_IDX)) { 751 free_index = i; 752 break; 753 } 754 } 755 756 if (free_index != -1) { 757 *chap_index = free_index; 758 rval = QLA_SUCCESS; 759 } else { 760 rval = QLA_ERROR; 761 } 762 763 exit_find_chap: 764 return rval; 765 } 766 767 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 768 uint32_t *num_entries, char *buf) 769 { 770 struct scsi_qla_host *ha = to_qla_host(shost); 771 struct ql4_chap_table *chap_table; 772 struct iscsi_chap_rec *chap_rec; 773 int max_chap_entries = 0; 774 int valid_chap_entries = 0; 775 int ret = 0, i; 776 777 if (is_qla80XX(ha)) 778 max_chap_entries = (ha->hw.flt_chap_size / 2) / 779 sizeof(struct ql4_chap_table); 780 else 781 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 782 783 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 784 __func__, *num_entries, chap_tbl_idx); 785 786 if (!buf) { 787 ret = -ENOMEM; 788 goto exit_get_chap_list; 789 } 790 791 qla4xxx_create_chap_list(ha); 792 793 chap_rec = (struct iscsi_chap_rec *) buf; 794 mutex_lock(&ha->chap_sem); 795 for (i = chap_tbl_idx; i < max_chap_entries; i++) { 796 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 797 if (chap_table->cookie != 798 cpu_to_le16(CHAP_VALID_COOKIE)) 799 continue; 800 801 chap_rec->chap_tbl_idx = i; 802 strlcpy(chap_rec->username, chap_table->name, 803 ISCSI_CHAP_AUTH_NAME_MAX_LEN); 804 strlcpy(chap_rec->password, chap_table->secret, 805 QL4_CHAP_MAX_SECRET_LEN); 806 chap_rec->password_length = chap_table->secret_len; 807 808 if (chap_table->flags & BIT_7) /* local */ 809 chap_rec->chap_type = CHAP_TYPE_OUT; 810 811 if (chap_table->flags & BIT_6) /* peer */ 812 chap_rec->chap_type = CHAP_TYPE_IN; 813 814 chap_rec++; 815 816 valid_chap_entries++; 817 if (valid_chap_entries == *num_entries) 818 break; 819 } 820 mutex_unlock(&ha->chap_sem); 821 822 exit_get_chap_list: 823 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 824 __func__, valid_chap_entries); 825 *num_entries = valid_chap_entries; 826 return ret; 827 } 828 829 static int __qla4xxx_is_chap_active(struct device *dev, void *data) 830 { 831 int ret = 0; 832 uint16_t *chap_tbl_idx = (uint16_t *) data; 833 struct iscsi_cls_session *cls_session; 834 struct iscsi_session *sess; 835 struct ddb_entry *ddb_entry; 836 837 if (!iscsi_is_session_dev(dev)) 838 goto exit_is_chap_active; 839 840 cls_session = iscsi_dev_to_session(dev); 841 sess = cls_session->dd_data; 842 ddb_entry = sess->dd_data; 843 844 if (iscsi_is_session_online(cls_session)) 845 goto exit_is_chap_active; 846 847 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 848 ret = 1; 849 850 exit_is_chap_active: 851 return ret; 852 } 853 854 static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 855 uint16_t chap_tbl_idx) 856 { 857 int ret = 0; 858 859 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 860 __qla4xxx_is_chap_active); 861 862 return ret; 863 } 864 865 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 866 { 867 struct scsi_qla_host *ha = to_qla_host(shost); 868 struct ql4_chap_table *chap_table; 869 dma_addr_t chap_dma; 870 int max_chap_entries = 0; 871 uint32_t offset = 0; 872 uint32_t chap_size; 873 int ret = 0; 874 875 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 876 if (chap_table == NULL) 877 return -ENOMEM; 878 879 if (is_qla80XX(ha)) 880 max_chap_entries = (ha->hw.flt_chap_size / 2) / 881 sizeof(struct ql4_chap_table); 882 else 883 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 884 885 if (chap_tbl_idx > max_chap_entries) { 886 ret = -EINVAL; 887 goto exit_delete_chap; 888 } 889 890 /* Check if chap index is in use. 891 * If chap is in use don't delet chap entry */ 892 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 893 if (ret) { 894 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 895 "delete from flash\n", chap_tbl_idx); 896 ret = -EBUSY; 897 goto exit_delete_chap; 898 } 899 900 chap_size = sizeof(struct ql4_chap_table); 901 if (is_qla40XX(ha)) 902 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 903 else { 904 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 905 /* flt_chap_size is CHAP table size for both ports 906 * so divide it by 2 to calculate the offset for second port 907 */ 908 if (ha->port_num == 1) 909 offset += (ha->hw.flt_chap_size / 2); 910 offset += (chap_tbl_idx * chap_size); 911 } 912 913 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 914 if (ret != QLA_SUCCESS) { 915 ret = -EINVAL; 916 goto exit_delete_chap; 917 } 918 919 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 920 __le16_to_cpu(chap_table->cookie))); 921 922 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 923 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 924 goto exit_delete_chap; 925 } 926 927 chap_table->cookie = cpu_to_le16(0xFFFF); 928 929 offset = FLASH_CHAP_OFFSET | 930 (chap_tbl_idx * sizeof(struct ql4_chap_table)); 931 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 932 FLASH_OPT_RMW_COMMIT); 933 if (ret == QLA_SUCCESS && ha->chap_list) { 934 mutex_lock(&ha->chap_sem); 935 /* Update ha chap_list cache */ 936 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 937 chap_table, sizeof(struct ql4_chap_table)); 938 mutex_unlock(&ha->chap_sem); 939 } 940 if (ret != QLA_SUCCESS) 941 ret = -EINVAL; 942 943 exit_delete_chap: 944 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 945 return ret; 946 } 947 948 /** 949 * qla4xxx_set_chap_entry - Make chap entry with given information 950 * @shost: pointer to host 951 * @data: chap info - credentials, index and type to make chap entry 952 * @len: length of data 953 * 954 * Add or update chap entry with the given information 955 **/ 956 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len) 957 { 958 struct scsi_qla_host *ha = to_qla_host(shost); 959 struct iscsi_chap_rec chap_rec; 960 struct ql4_chap_table *chap_entry = NULL; 961 struct iscsi_param_info *param_info; 962 struct nlattr *attr; 963 int max_chap_entries = 0; 964 int type; 965 int rem = len; 966 int rc = 0; 967 int size; 968 969 memset(&chap_rec, 0, sizeof(chap_rec)); 970 971 nla_for_each_attr(attr, data, len, rem) { 972 param_info = nla_data(attr); 973 974 switch (param_info->param) { 975 case ISCSI_CHAP_PARAM_INDEX: 976 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value; 977 break; 978 case ISCSI_CHAP_PARAM_CHAP_TYPE: 979 chap_rec.chap_type = param_info->value[0]; 980 break; 981 case ISCSI_CHAP_PARAM_USERNAME: 982 size = min_t(size_t, sizeof(chap_rec.username), 983 param_info->len); 984 memcpy(chap_rec.username, param_info->value, size); 985 break; 986 case ISCSI_CHAP_PARAM_PASSWORD: 987 size = min_t(size_t, sizeof(chap_rec.password), 988 param_info->len); 989 memcpy(chap_rec.password, param_info->value, size); 990 break; 991 case ISCSI_CHAP_PARAM_PASSWORD_LEN: 992 chap_rec.password_length = param_info->value[0]; 993 break; 994 default: 995 ql4_printk(KERN_ERR, ha, 996 "%s: No such sysfs attribute\n", __func__); 997 rc = -ENOSYS; 998 goto exit_set_chap; 999 } 1000 } 1001 1002 if (chap_rec.chap_type == CHAP_TYPE_IN) 1003 type = BIDI_CHAP; 1004 else 1005 type = LOCAL_CHAP; 1006 1007 if (is_qla80XX(ha)) 1008 max_chap_entries = (ha->hw.flt_chap_size / 2) / 1009 sizeof(struct ql4_chap_table); 1010 else 1011 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 1012 1013 mutex_lock(&ha->chap_sem); 1014 if (chap_rec.chap_tbl_idx < max_chap_entries) { 1015 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx, 1016 &chap_entry); 1017 if (!rc) { 1018 if (!(type == qla4xxx_get_chap_type(chap_entry))) { 1019 ql4_printk(KERN_INFO, ha, 1020 "Type mismatch for CHAP entry %d\n", 1021 chap_rec.chap_tbl_idx); 1022 rc = -EINVAL; 1023 goto exit_unlock_chap; 1024 } 1025 1026 /* If chap index is in use then don't modify it */ 1027 rc = qla4xxx_is_chap_active(shost, 1028 chap_rec.chap_tbl_idx); 1029 if (rc) { 1030 ql4_printk(KERN_INFO, ha, 1031 "CHAP entry %d is in use\n", 1032 chap_rec.chap_tbl_idx); 1033 rc = -EBUSY; 1034 goto exit_unlock_chap; 1035 } 1036 } 1037 } else { 1038 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx); 1039 if (rc) { 1040 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n"); 1041 rc = -EBUSY; 1042 goto exit_unlock_chap; 1043 } 1044 } 1045 1046 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password, 1047 chap_rec.chap_tbl_idx, type); 1048 1049 exit_unlock_chap: 1050 mutex_unlock(&ha->chap_sem); 1051 1052 exit_set_chap: 1053 return rc; 1054 } 1055 1056 1057 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len) 1058 { 1059 struct scsi_qla_host *ha = to_qla_host(shost); 1060 struct iscsi_offload_host_stats *host_stats = NULL; 1061 int host_stats_size; 1062 int ret = 0; 1063 int ddb_idx = 0; 1064 struct ql_iscsi_stats *ql_iscsi_stats = NULL; 1065 int stats_size; 1066 dma_addr_t iscsi_stats_dma; 1067 1068 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__)); 1069 1070 host_stats_size = sizeof(struct iscsi_offload_host_stats); 1071 1072 if (host_stats_size != len) { 1073 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n", 1074 __func__, len, host_stats_size); 1075 ret = -EINVAL; 1076 goto exit_host_stats; 1077 } 1078 host_stats = (struct iscsi_offload_host_stats *)buf; 1079 1080 if (!buf) { 1081 ret = -ENOMEM; 1082 goto exit_host_stats; 1083 } 1084 1085 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1086 1087 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1088 &iscsi_stats_dma, GFP_KERNEL); 1089 if (!ql_iscsi_stats) { 1090 ql4_printk(KERN_ERR, ha, 1091 "Unable to allocate memory for iscsi stats\n"); 1092 ret = -ENOMEM; 1093 goto exit_host_stats; 1094 } 1095 1096 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size, 1097 iscsi_stats_dma); 1098 if (ret != QLA_SUCCESS) { 1099 ql4_printk(KERN_ERR, ha, 1100 "Unable to retrieve iscsi stats\n"); 1101 ret = -EIO; 1102 goto exit_host_stats; 1103 } 1104 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames); 1105 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes); 1106 host_stats->mactx_multicast_frames = 1107 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames); 1108 host_stats->mactx_broadcast_frames = 1109 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames); 1110 host_stats->mactx_pause_frames = 1111 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames); 1112 host_stats->mactx_control_frames = 1113 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames); 1114 host_stats->mactx_deferral = 1115 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral); 1116 host_stats->mactx_excess_deferral = 1117 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral); 1118 host_stats->mactx_late_collision = 1119 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision); 1120 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort); 1121 host_stats->mactx_single_collision = 1122 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision); 1123 host_stats->mactx_multiple_collision = 1124 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision); 1125 host_stats->mactx_collision = 1126 le64_to_cpu(ql_iscsi_stats->mac_tx_collision); 1127 host_stats->mactx_frames_dropped = 1128 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped); 1129 host_stats->mactx_jumbo_frames = 1130 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames); 1131 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames); 1132 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes); 1133 host_stats->macrx_unknown_control_frames = 1134 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames); 1135 host_stats->macrx_pause_frames = 1136 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames); 1137 host_stats->macrx_control_frames = 1138 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames); 1139 host_stats->macrx_dribble = 1140 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble); 1141 host_stats->macrx_frame_length_error = 1142 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error); 1143 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber); 1144 host_stats->macrx_carrier_sense_error = 1145 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error); 1146 host_stats->macrx_frame_discarded = 1147 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded); 1148 host_stats->macrx_frames_dropped = 1149 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped); 1150 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error); 1151 host_stats->mac_encoding_error = 1152 le64_to_cpu(ql_iscsi_stats->mac_encoding_error); 1153 host_stats->macrx_length_error_large = 1154 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large); 1155 host_stats->macrx_length_error_small = 1156 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small); 1157 host_stats->macrx_multicast_frames = 1158 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames); 1159 host_stats->macrx_broadcast_frames = 1160 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames); 1161 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets); 1162 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes); 1163 host_stats->iptx_fragments = 1164 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments); 1165 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets); 1166 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes); 1167 host_stats->iprx_fragments = 1168 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments); 1169 host_stats->ip_datagram_reassembly = 1170 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly); 1171 host_stats->ip_invalid_address_error = 1172 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error); 1173 host_stats->ip_error_packets = 1174 le64_to_cpu(ql_iscsi_stats->ip_error_packets); 1175 host_stats->ip_fragrx_overlap = 1176 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap); 1177 host_stats->ip_fragrx_outoforder = 1178 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder); 1179 host_stats->ip_datagram_reassembly_timeout = 1180 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout); 1181 host_stats->ipv6tx_packets = 1182 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets); 1183 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes); 1184 host_stats->ipv6tx_fragments = 1185 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments); 1186 host_stats->ipv6rx_packets = 1187 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets); 1188 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes); 1189 host_stats->ipv6rx_fragments = 1190 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments); 1191 host_stats->ipv6_datagram_reassembly = 1192 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly); 1193 host_stats->ipv6_invalid_address_error = 1194 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error); 1195 host_stats->ipv6_error_packets = 1196 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets); 1197 host_stats->ipv6_fragrx_overlap = 1198 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap); 1199 host_stats->ipv6_fragrx_outoforder = 1200 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder); 1201 host_stats->ipv6_datagram_reassembly_timeout = 1202 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout); 1203 host_stats->tcptx_segments = 1204 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments); 1205 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes); 1206 host_stats->tcprx_segments = 1207 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments); 1208 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte); 1209 host_stats->tcp_duplicate_ack_retx = 1210 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx); 1211 host_stats->tcp_retx_timer_expired = 1212 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired); 1213 host_stats->tcprx_duplicate_ack = 1214 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack); 1215 host_stats->tcprx_pure_ackr = 1216 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr); 1217 host_stats->tcptx_delayed_ack = 1218 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack); 1219 host_stats->tcptx_pure_ack = 1220 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack); 1221 host_stats->tcprx_segment_error = 1222 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error); 1223 host_stats->tcprx_segment_outoforder = 1224 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder); 1225 host_stats->tcprx_window_probe = 1226 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe); 1227 host_stats->tcprx_window_update = 1228 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update); 1229 host_stats->tcptx_window_probe_persist = 1230 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist); 1231 host_stats->ecc_error_correction = 1232 le64_to_cpu(ql_iscsi_stats->ecc_error_correction); 1233 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx); 1234 host_stats->iscsi_data_bytes_tx = 1235 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx); 1236 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx); 1237 host_stats->iscsi_data_bytes_rx = 1238 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx); 1239 host_stats->iscsi_io_completed = 1240 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed); 1241 host_stats->iscsi_unexpected_io_rx = 1242 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx); 1243 host_stats->iscsi_format_error = 1244 le64_to_cpu(ql_iscsi_stats->iscsi_format_error); 1245 host_stats->iscsi_hdr_digest_error = 1246 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error); 1247 host_stats->iscsi_data_digest_error = 1248 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error); 1249 host_stats->iscsi_sequence_error = 1250 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error); 1251 exit_host_stats: 1252 if (ql_iscsi_stats) 1253 dma_free_coherent(&ha->pdev->dev, stats_size, 1254 ql_iscsi_stats, iscsi_stats_dma); 1255 1256 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n", 1257 __func__); 1258 return ret; 1259 } 1260 1261 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 1262 enum iscsi_param_type param_type, 1263 int param, char *buf) 1264 { 1265 struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 1266 struct scsi_qla_host *ha = to_qla_host(shost); 1267 int ival; 1268 char *pval = NULL; 1269 int len = -ENOSYS; 1270 1271 if (param_type == ISCSI_NET_PARAM) { 1272 switch (param) { 1273 case ISCSI_NET_PARAM_IPV4_ADDR: 1274 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1275 break; 1276 case ISCSI_NET_PARAM_IPV4_SUBNET: 1277 len = sprintf(buf, "%pI4\n", 1278 &ha->ip_config.subnet_mask); 1279 break; 1280 case ISCSI_NET_PARAM_IPV4_GW: 1281 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 1282 break; 1283 case ISCSI_NET_PARAM_IFACE_ENABLE: 1284 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1285 OP_STATE(ha->ip_config.ipv4_options, 1286 IPOPT_IPV4_PROTOCOL_ENABLE, pval); 1287 } else { 1288 OP_STATE(ha->ip_config.ipv6_options, 1289 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval); 1290 } 1291 1292 len = sprintf(buf, "%s\n", pval); 1293 break; 1294 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1295 len = sprintf(buf, "%s\n", 1296 (ha->ip_config.tcp_options & 1297 TCPOPT_DHCP_ENABLE) ? 1298 "dhcp" : "static"); 1299 break; 1300 case ISCSI_NET_PARAM_IPV6_ADDR: 1301 if (iface->iface_num == 0) 1302 len = sprintf(buf, "%pI6\n", 1303 &ha->ip_config.ipv6_addr0); 1304 if (iface->iface_num == 1) 1305 len = sprintf(buf, "%pI6\n", 1306 &ha->ip_config.ipv6_addr1); 1307 break; 1308 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1309 len = sprintf(buf, "%pI6\n", 1310 &ha->ip_config.ipv6_link_local_addr); 1311 break; 1312 case ISCSI_NET_PARAM_IPV6_ROUTER: 1313 len = sprintf(buf, "%pI6\n", 1314 &ha->ip_config.ipv6_default_router_addr); 1315 break; 1316 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1317 pval = (ha->ip_config.ipv6_addl_options & 1318 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 1319 "nd" : "static"; 1320 1321 len = sprintf(buf, "%s\n", pval); 1322 break; 1323 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1324 pval = (ha->ip_config.ipv6_addl_options & 1325 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 1326 "auto" : "static"; 1327 1328 len = sprintf(buf, "%s\n", pval); 1329 break; 1330 case ISCSI_NET_PARAM_VLAN_ID: 1331 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1332 ival = ha->ip_config.ipv4_vlan_tag & 1333 ISCSI_MAX_VLAN_ID; 1334 else 1335 ival = ha->ip_config.ipv6_vlan_tag & 1336 ISCSI_MAX_VLAN_ID; 1337 1338 len = sprintf(buf, "%d\n", ival); 1339 break; 1340 case ISCSI_NET_PARAM_VLAN_PRIORITY: 1341 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1342 ival = (ha->ip_config.ipv4_vlan_tag >> 13) & 1343 ISCSI_MAX_VLAN_PRIORITY; 1344 else 1345 ival = (ha->ip_config.ipv6_vlan_tag >> 13) & 1346 ISCSI_MAX_VLAN_PRIORITY; 1347 1348 len = sprintf(buf, "%d\n", ival); 1349 break; 1350 case ISCSI_NET_PARAM_VLAN_ENABLED: 1351 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1352 OP_STATE(ha->ip_config.ipv4_options, 1353 IPOPT_VLAN_TAGGING_ENABLE, pval); 1354 } else { 1355 OP_STATE(ha->ip_config.ipv6_options, 1356 IPV6_OPT_VLAN_TAGGING_ENABLE, pval); 1357 } 1358 len = sprintf(buf, "%s\n", pval); 1359 break; 1360 case ISCSI_NET_PARAM_MTU: 1361 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 1362 break; 1363 case ISCSI_NET_PARAM_PORT: 1364 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1365 len = sprintf(buf, "%d\n", 1366 ha->ip_config.ipv4_port); 1367 else 1368 len = sprintf(buf, "%d\n", 1369 ha->ip_config.ipv6_port); 1370 break; 1371 case ISCSI_NET_PARAM_IPADDR_STATE: 1372 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1373 pval = iscsi_get_ipaddress_state_name( 1374 ha->ip_config.ipv4_addr_state); 1375 } else { 1376 if (iface->iface_num == 0) 1377 pval = iscsi_get_ipaddress_state_name( 1378 ha->ip_config.ipv6_addr0_state); 1379 else if (iface->iface_num == 1) 1380 pval = iscsi_get_ipaddress_state_name( 1381 ha->ip_config.ipv6_addr1_state); 1382 } 1383 1384 len = sprintf(buf, "%s\n", pval); 1385 break; 1386 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 1387 pval = iscsi_get_ipaddress_state_name( 1388 ha->ip_config.ipv6_link_local_state); 1389 len = sprintf(buf, "%s\n", pval); 1390 break; 1391 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 1392 pval = iscsi_get_router_state_name( 1393 ha->ip_config.ipv6_default_router_state); 1394 len = sprintf(buf, "%s\n", pval); 1395 break; 1396 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 1397 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1398 OP_STATE(~ha->ip_config.tcp_options, 1399 TCPOPT_DELAYED_ACK_DISABLE, pval); 1400 } else { 1401 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1402 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval); 1403 } 1404 len = sprintf(buf, "%s\n", pval); 1405 break; 1406 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 1407 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1408 OP_STATE(~ha->ip_config.tcp_options, 1409 TCPOPT_NAGLE_ALGO_DISABLE, pval); 1410 } else { 1411 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1412 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval); 1413 } 1414 len = sprintf(buf, "%s\n", pval); 1415 break; 1416 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 1417 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1418 OP_STATE(~ha->ip_config.tcp_options, 1419 TCPOPT_WINDOW_SCALE_DISABLE, pval); 1420 } else { 1421 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1422 IPV6_TCPOPT_WINDOW_SCALE_DISABLE, 1423 pval); 1424 } 1425 len = sprintf(buf, "%s\n", pval); 1426 break; 1427 case ISCSI_NET_PARAM_TCP_WSF: 1428 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1429 len = sprintf(buf, "%d\n", 1430 ha->ip_config.tcp_wsf); 1431 else 1432 len = sprintf(buf, "%d\n", 1433 ha->ip_config.ipv6_tcp_wsf); 1434 break; 1435 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 1436 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1437 ival = (ha->ip_config.tcp_options & 1438 TCPOPT_TIMER_SCALE) >> 1; 1439 else 1440 ival = (ha->ip_config.ipv6_tcp_options & 1441 IPV6_TCPOPT_TIMER_SCALE) >> 1; 1442 1443 len = sprintf(buf, "%d\n", ival); 1444 break; 1445 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 1446 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1447 OP_STATE(ha->ip_config.tcp_options, 1448 TCPOPT_TIMESTAMP_ENABLE, pval); 1449 } else { 1450 OP_STATE(ha->ip_config.ipv6_tcp_options, 1451 IPV6_TCPOPT_TIMESTAMP_EN, pval); 1452 } 1453 len = sprintf(buf, "%s\n", pval); 1454 break; 1455 case ISCSI_NET_PARAM_CACHE_ID: 1456 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1457 len = sprintf(buf, "%d\n", 1458 ha->ip_config.ipv4_cache_id); 1459 else 1460 len = sprintf(buf, "%d\n", 1461 ha->ip_config.ipv6_cache_id); 1462 break; 1463 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 1464 OP_STATE(ha->ip_config.tcp_options, 1465 TCPOPT_DNS_SERVER_IP_EN, pval); 1466 1467 len = sprintf(buf, "%s\n", pval); 1468 break; 1469 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 1470 OP_STATE(ha->ip_config.tcp_options, 1471 TCPOPT_SLP_DA_INFO_EN, pval); 1472 1473 len = sprintf(buf, "%s\n", pval); 1474 break; 1475 case ISCSI_NET_PARAM_IPV4_TOS_EN: 1476 OP_STATE(ha->ip_config.ipv4_options, 1477 IPOPT_IPV4_TOS_EN, pval); 1478 1479 len = sprintf(buf, "%s\n", pval); 1480 break; 1481 case ISCSI_NET_PARAM_IPV4_TOS: 1482 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos); 1483 break; 1484 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 1485 OP_STATE(ha->ip_config.ipv4_options, 1486 IPOPT_GRAT_ARP_EN, pval); 1487 1488 len = sprintf(buf, "%s\n", pval); 1489 break; 1490 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 1491 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN, 1492 pval); 1493 1494 len = sprintf(buf, "%s\n", pval); 1495 break; 1496 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 1497 pval = (ha->ip_config.ipv4_alt_cid_len) ? 1498 (char *)ha->ip_config.ipv4_alt_cid : ""; 1499 1500 len = sprintf(buf, "%s\n", pval); 1501 break; 1502 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 1503 OP_STATE(ha->ip_config.ipv4_options, 1504 IPOPT_REQ_VID_EN, pval); 1505 1506 len = sprintf(buf, "%s\n", pval); 1507 break; 1508 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 1509 OP_STATE(ha->ip_config.ipv4_options, 1510 IPOPT_USE_VID_EN, pval); 1511 1512 len = sprintf(buf, "%s\n", pval); 1513 break; 1514 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 1515 pval = (ha->ip_config.ipv4_vid_len) ? 1516 (char *)ha->ip_config.ipv4_vid : ""; 1517 1518 len = sprintf(buf, "%s\n", pval); 1519 break; 1520 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 1521 OP_STATE(ha->ip_config.ipv4_options, 1522 IPOPT_LEARN_IQN_EN, pval); 1523 1524 len = sprintf(buf, "%s\n", pval); 1525 break; 1526 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 1527 OP_STATE(~ha->ip_config.ipv4_options, 1528 IPOPT_FRAGMENTATION_DISABLE, pval); 1529 1530 len = sprintf(buf, "%s\n", pval); 1531 break; 1532 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 1533 OP_STATE(ha->ip_config.ipv4_options, 1534 IPOPT_IN_FORWARD_EN, pval); 1535 1536 len = sprintf(buf, "%s\n", pval); 1537 break; 1538 case ISCSI_NET_PARAM_REDIRECT_EN: 1539 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1540 OP_STATE(ha->ip_config.ipv4_options, 1541 IPOPT_ARP_REDIRECT_EN, pval); 1542 } else { 1543 OP_STATE(ha->ip_config.ipv6_options, 1544 IPV6_OPT_REDIRECT_EN, pval); 1545 } 1546 len = sprintf(buf, "%s\n", pval); 1547 break; 1548 case ISCSI_NET_PARAM_IPV4_TTL: 1549 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl); 1550 break; 1551 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 1552 OP_STATE(ha->ip_config.ipv6_options, 1553 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval); 1554 1555 len = sprintf(buf, "%s\n", pval); 1556 break; 1557 case ISCSI_NET_PARAM_IPV6_MLD_EN: 1558 OP_STATE(ha->ip_config.ipv6_addl_options, 1559 IPV6_ADDOPT_MLD_EN, pval); 1560 1561 len = sprintf(buf, "%s\n", pval); 1562 break; 1563 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 1564 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl); 1565 break; 1566 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 1567 len = sprintf(buf, "%d\n", 1568 ha->ip_config.ipv6_traffic_class); 1569 break; 1570 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 1571 len = sprintf(buf, "%d\n", 1572 ha->ip_config.ipv6_hop_limit); 1573 break; 1574 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 1575 len = sprintf(buf, "%d\n", 1576 ha->ip_config.ipv6_nd_reach_time); 1577 break; 1578 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 1579 len = sprintf(buf, "%d\n", 1580 ha->ip_config.ipv6_nd_rexmit_timer); 1581 break; 1582 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 1583 len = sprintf(buf, "%d\n", 1584 ha->ip_config.ipv6_nd_stale_timeout); 1585 break; 1586 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 1587 len = sprintf(buf, "%d\n", 1588 ha->ip_config.ipv6_dup_addr_detect_count); 1589 break; 1590 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 1591 len = sprintf(buf, "%d\n", 1592 ha->ip_config.ipv6_gw_advrt_mtu); 1593 break; 1594 default: 1595 len = -ENOSYS; 1596 } 1597 } else if (param_type == ISCSI_IFACE_PARAM) { 1598 switch (param) { 1599 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 1600 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout); 1601 break; 1602 case ISCSI_IFACE_PARAM_HDRDGST_EN: 1603 OP_STATE(ha->ip_config.iscsi_options, 1604 ISCSIOPTS_HEADER_DIGEST_EN, pval); 1605 1606 len = sprintf(buf, "%s\n", pval); 1607 break; 1608 case ISCSI_IFACE_PARAM_DATADGST_EN: 1609 OP_STATE(ha->ip_config.iscsi_options, 1610 ISCSIOPTS_DATA_DIGEST_EN, pval); 1611 1612 len = sprintf(buf, "%s\n", pval); 1613 break; 1614 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 1615 OP_STATE(ha->ip_config.iscsi_options, 1616 ISCSIOPTS_IMMEDIATE_DATA_EN, pval); 1617 1618 len = sprintf(buf, "%s\n", pval); 1619 break; 1620 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 1621 OP_STATE(ha->ip_config.iscsi_options, 1622 ISCSIOPTS_INITIAL_R2T_EN, pval); 1623 1624 len = sprintf(buf, "%s\n", pval); 1625 break; 1626 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 1627 OP_STATE(ha->ip_config.iscsi_options, 1628 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval); 1629 1630 len = sprintf(buf, "%s\n", pval); 1631 break; 1632 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 1633 OP_STATE(ha->ip_config.iscsi_options, 1634 ISCSIOPTS_DATA_PDU_INORDER_EN, pval); 1635 1636 len = sprintf(buf, "%s\n", pval); 1637 break; 1638 case ISCSI_IFACE_PARAM_ERL: 1639 len = sprintf(buf, "%d\n", 1640 (ha->ip_config.iscsi_options & 1641 ISCSIOPTS_ERL)); 1642 break; 1643 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 1644 len = sprintf(buf, "%u\n", 1645 ha->ip_config.iscsi_max_pdu_size * 1646 BYTE_UNITS); 1647 break; 1648 case ISCSI_IFACE_PARAM_FIRST_BURST: 1649 len = sprintf(buf, "%u\n", 1650 ha->ip_config.iscsi_first_burst_len * 1651 BYTE_UNITS); 1652 break; 1653 case ISCSI_IFACE_PARAM_MAX_R2T: 1654 len = sprintf(buf, "%d\n", 1655 ha->ip_config.iscsi_max_outstnd_r2t); 1656 break; 1657 case ISCSI_IFACE_PARAM_MAX_BURST: 1658 len = sprintf(buf, "%u\n", 1659 ha->ip_config.iscsi_max_burst_len * 1660 BYTE_UNITS); 1661 break; 1662 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 1663 OP_STATE(ha->ip_config.iscsi_options, 1664 ISCSIOPTS_CHAP_AUTH_EN, pval); 1665 1666 len = sprintf(buf, "%s\n", pval); 1667 break; 1668 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 1669 OP_STATE(ha->ip_config.iscsi_options, 1670 ISCSIOPTS_BIDI_CHAP_EN, pval); 1671 1672 len = sprintf(buf, "%s\n", pval); 1673 break; 1674 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 1675 OP_STATE(ha->ip_config.iscsi_options, 1676 ISCSIOPTS_DISCOVERY_AUTH_EN, pval); 1677 1678 len = sprintf(buf, "%s\n", pval); 1679 break; 1680 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 1681 OP_STATE(ha->ip_config.iscsi_options, 1682 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval); 1683 1684 len = sprintf(buf, "%s\n", pval); 1685 break; 1686 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 1687 OP_STATE(ha->ip_config.iscsi_options, 1688 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval); 1689 1690 len = sprintf(buf, "%s\n", pval); 1691 break; 1692 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 1693 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name); 1694 break; 1695 default: 1696 len = -ENOSYS; 1697 } 1698 } 1699 1700 return len; 1701 } 1702 1703 static struct iscsi_endpoint * 1704 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 1705 int non_blocking) 1706 { 1707 int ret; 1708 struct iscsi_endpoint *ep; 1709 struct qla_endpoint *qla_ep; 1710 struct scsi_qla_host *ha; 1711 struct sockaddr_in *addr; 1712 struct sockaddr_in6 *addr6; 1713 1714 if (!shost) { 1715 ret = -ENXIO; 1716 pr_err("%s: shost is NULL\n", __func__); 1717 return ERR_PTR(ret); 1718 } 1719 1720 ha = iscsi_host_priv(shost); 1721 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 1722 if (!ep) { 1723 ret = -ENOMEM; 1724 return ERR_PTR(ret); 1725 } 1726 1727 qla_ep = ep->dd_data; 1728 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 1729 if (dst_addr->sa_family == AF_INET) { 1730 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 1731 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 1732 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 1733 (char *)&addr->sin_addr)); 1734 } else if (dst_addr->sa_family == AF_INET6) { 1735 memcpy(&qla_ep->dst_addr, dst_addr, 1736 sizeof(struct sockaddr_in6)); 1737 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 1738 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 1739 (char *)&addr6->sin6_addr)); 1740 } else { 1741 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n", 1742 __func__); 1743 } 1744 1745 qla_ep->host = shost; 1746 1747 return ep; 1748 } 1749 1750 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 1751 { 1752 struct qla_endpoint *qla_ep; 1753 struct scsi_qla_host *ha; 1754 int ret = 0; 1755 1756 qla_ep = ep->dd_data; 1757 ha = to_qla_host(qla_ep->host); 1758 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no)); 1759 1760 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 1761 ret = 1; 1762 1763 return ret; 1764 } 1765 1766 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 1767 { 1768 struct qla_endpoint *qla_ep; 1769 struct scsi_qla_host *ha; 1770 1771 qla_ep = ep->dd_data; 1772 ha = to_qla_host(qla_ep->host); 1773 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1774 ha->host_no)); 1775 iscsi_destroy_endpoint(ep); 1776 } 1777 1778 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 1779 enum iscsi_param param, 1780 char *buf) 1781 { 1782 struct qla_endpoint *qla_ep = ep->dd_data; 1783 struct sockaddr *dst_addr; 1784 struct scsi_qla_host *ha; 1785 1786 if (!qla_ep) 1787 return -ENOTCONN; 1788 1789 ha = to_qla_host(qla_ep->host); 1790 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1791 ha->host_no)); 1792 1793 switch (param) { 1794 case ISCSI_PARAM_CONN_PORT: 1795 case ISCSI_PARAM_CONN_ADDRESS: 1796 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1797 if (!dst_addr) 1798 return -ENOTCONN; 1799 1800 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1801 &qla_ep->dst_addr, param, buf); 1802 default: 1803 return -ENOSYS; 1804 } 1805 } 1806 1807 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 1808 struct iscsi_stats *stats) 1809 { 1810 struct iscsi_session *sess; 1811 struct iscsi_cls_session *cls_sess; 1812 struct ddb_entry *ddb_entry; 1813 struct scsi_qla_host *ha; 1814 struct ql_iscsi_stats *ql_iscsi_stats; 1815 int stats_size; 1816 int ret; 1817 dma_addr_t iscsi_stats_dma; 1818 1819 cls_sess = iscsi_conn_to_session(cls_conn); 1820 sess = cls_sess->dd_data; 1821 ddb_entry = sess->dd_data; 1822 ha = ddb_entry->ha; 1823 1824 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1825 ha->host_no)); 1826 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1827 /* Allocate memory */ 1828 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1829 &iscsi_stats_dma, GFP_KERNEL); 1830 if (!ql_iscsi_stats) { 1831 ql4_printk(KERN_ERR, ha, 1832 "Unable to allocate memory for iscsi stats\n"); 1833 goto exit_get_stats; 1834 } 1835 1836 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 1837 iscsi_stats_dma); 1838 if (ret != QLA_SUCCESS) { 1839 ql4_printk(KERN_ERR, ha, 1840 "Unable to retrieve iscsi stats\n"); 1841 goto free_stats; 1842 } 1843 1844 /* octets */ 1845 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 1846 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 1847 /* xmit pdus */ 1848 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 1849 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 1850 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 1851 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 1852 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 1853 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 1854 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 1855 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 1856 /* recv pdus */ 1857 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 1858 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 1859 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 1860 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 1861 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 1862 stats->logoutrsp_pdus = 1863 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 1864 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 1865 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 1866 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 1867 1868 free_stats: 1869 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 1870 iscsi_stats_dma); 1871 exit_get_stats: 1872 return; 1873 } 1874 1875 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 1876 { 1877 struct iscsi_cls_session *session; 1878 unsigned long flags; 1879 enum blk_eh_timer_return ret = BLK_EH_DONE; 1880 1881 session = starget_to_session(scsi_target(sc->device)); 1882 1883 spin_lock_irqsave(&session->lock, flags); 1884 if (session->state == ISCSI_SESSION_FAILED) 1885 ret = BLK_EH_RESET_TIMER; 1886 spin_unlock_irqrestore(&session->lock, flags); 1887 1888 return ret; 1889 } 1890 1891 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 1892 { 1893 struct scsi_qla_host *ha = to_qla_host(shost); 1894 struct iscsi_cls_host *ihost = shost->shost_data; 1895 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 1896 1897 qla4xxx_get_firmware_state(ha); 1898 1899 switch (ha->addl_fw_state & 0x0F00) { 1900 case FW_ADDSTATE_LINK_SPEED_10MBPS: 1901 speed = ISCSI_PORT_SPEED_10MBPS; 1902 break; 1903 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1904 speed = ISCSI_PORT_SPEED_100MBPS; 1905 break; 1906 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1907 speed = ISCSI_PORT_SPEED_1GBPS; 1908 break; 1909 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1910 speed = ISCSI_PORT_SPEED_10GBPS; 1911 break; 1912 } 1913 ihost->port_speed = speed; 1914 } 1915 1916 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1917 { 1918 struct scsi_qla_host *ha = to_qla_host(shost); 1919 struct iscsi_cls_host *ihost = shost->shost_data; 1920 uint32_t state = ISCSI_PORT_STATE_DOWN; 1921 1922 if (test_bit(AF_LINK_UP, &ha->flags)) 1923 state = ISCSI_PORT_STATE_UP; 1924 1925 ihost->port_state = state; 1926 } 1927 1928 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1929 enum iscsi_host_param param, char *buf) 1930 { 1931 struct scsi_qla_host *ha = to_qla_host(shost); 1932 int len; 1933 1934 switch (param) { 1935 case ISCSI_HOST_PARAM_HWADDRESS: 1936 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1937 break; 1938 case ISCSI_HOST_PARAM_IPADDRESS: 1939 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1940 break; 1941 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1942 len = sprintf(buf, "%s\n", ha->name_string); 1943 break; 1944 case ISCSI_HOST_PARAM_PORT_STATE: 1945 qla4xxx_set_port_state(shost); 1946 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1947 break; 1948 case ISCSI_HOST_PARAM_PORT_SPEED: 1949 qla4xxx_set_port_speed(shost); 1950 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1951 break; 1952 default: 1953 return -ENOSYS; 1954 } 1955 1956 return len; 1957 } 1958 1959 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1960 { 1961 if (ha->iface_ipv4) 1962 return; 1963 1964 /* IPv4 */ 1965 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1966 &qla4xxx_iscsi_transport, 1967 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1968 if (!ha->iface_ipv4) 1969 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1970 "iface0.\n"); 1971 } 1972 1973 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1974 { 1975 if (!ha->iface_ipv6_0) 1976 /* IPv6 iface-0 */ 1977 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1978 &qla4xxx_iscsi_transport, 1979 ISCSI_IFACE_TYPE_IPV6, 0, 1980 0); 1981 if (!ha->iface_ipv6_0) 1982 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1983 "iface0.\n"); 1984 1985 if (!ha->iface_ipv6_1) 1986 /* IPv6 iface-1 */ 1987 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1988 &qla4xxx_iscsi_transport, 1989 ISCSI_IFACE_TYPE_IPV6, 1, 1990 0); 1991 if (!ha->iface_ipv6_1) 1992 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1993 "iface1.\n"); 1994 } 1995 1996 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 1997 { 1998 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 1999 qla4xxx_create_ipv4_iface(ha); 2000 2001 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 2002 qla4xxx_create_ipv6_iface(ha); 2003 } 2004 2005 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 2006 { 2007 if (ha->iface_ipv4) { 2008 iscsi_destroy_iface(ha->iface_ipv4); 2009 ha->iface_ipv4 = NULL; 2010 } 2011 } 2012 2013 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 2014 { 2015 if (ha->iface_ipv6_0) { 2016 iscsi_destroy_iface(ha->iface_ipv6_0); 2017 ha->iface_ipv6_0 = NULL; 2018 } 2019 if (ha->iface_ipv6_1) { 2020 iscsi_destroy_iface(ha->iface_ipv6_1); 2021 ha->iface_ipv6_1 = NULL; 2022 } 2023 } 2024 2025 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 2026 { 2027 qla4xxx_destroy_ipv4_iface(ha); 2028 qla4xxx_destroy_ipv6_iface(ha); 2029 } 2030 2031 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 2032 struct iscsi_iface_param_info *iface_param, 2033 struct addr_ctrl_blk *init_fw_cb) 2034 { 2035 /* 2036 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 2037 * iface_num 1 is valid only for IPv6 Addr. 2038 */ 2039 switch (iface_param->param) { 2040 case ISCSI_NET_PARAM_IPV6_ADDR: 2041 if (iface_param->iface_num & 0x1) 2042 /* IPv6 Addr 1 */ 2043 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 2044 sizeof(init_fw_cb->ipv6_addr1)); 2045 else 2046 /* IPv6 Addr 0 */ 2047 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 2048 sizeof(init_fw_cb->ipv6_addr0)); 2049 break; 2050 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 2051 if (iface_param->iface_num & 0x1) 2052 break; 2053 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 2054 sizeof(init_fw_cb->ipv6_if_id)); 2055 break; 2056 case ISCSI_NET_PARAM_IPV6_ROUTER: 2057 if (iface_param->iface_num & 0x1) 2058 break; 2059 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 2060 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2061 break; 2062 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 2063 /* Autocfg applies to even interface */ 2064 if (iface_param->iface_num & 0x1) 2065 break; 2066 2067 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 2068 init_fw_cb->ipv6_addtl_opts &= 2069 cpu_to_le16( 2070 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2071 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 2072 init_fw_cb->ipv6_addtl_opts |= 2073 cpu_to_le16( 2074 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2075 else 2076 ql4_printk(KERN_ERR, ha, 2077 "Invalid autocfg setting for IPv6 addr\n"); 2078 break; 2079 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2080 /* Autocfg applies to even interface */ 2081 if (iface_param->iface_num & 0x1) 2082 break; 2083 2084 if (iface_param->value[0] == 2085 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 2086 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 2087 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2088 else if (iface_param->value[0] == 2089 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 2090 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 2091 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2092 else 2093 ql4_printk(KERN_ERR, ha, 2094 "Invalid autocfg setting for IPv6 linklocal addr\n"); 2095 break; 2096 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 2097 /* Autocfg applies to even interface */ 2098 if (iface_param->iface_num & 0x1) 2099 break; 2100 2101 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 2102 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 2103 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2104 break; 2105 case ISCSI_NET_PARAM_IFACE_ENABLE: 2106 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2107 init_fw_cb->ipv6_opts |= 2108 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 2109 qla4xxx_create_ipv6_iface(ha); 2110 } else { 2111 init_fw_cb->ipv6_opts &= 2112 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 2113 0xFFFF); 2114 qla4xxx_destroy_ipv6_iface(ha); 2115 } 2116 break; 2117 case ISCSI_NET_PARAM_VLAN_TAG: 2118 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 2119 break; 2120 init_fw_cb->ipv6_vlan_tag = 2121 cpu_to_be16(*(uint16_t *)iface_param->value); 2122 break; 2123 case ISCSI_NET_PARAM_VLAN_ENABLED: 2124 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2125 init_fw_cb->ipv6_opts |= 2126 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 2127 else 2128 init_fw_cb->ipv6_opts &= 2129 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 2130 break; 2131 case ISCSI_NET_PARAM_MTU: 2132 init_fw_cb->eth_mtu_size = 2133 cpu_to_le16(*(uint16_t *)iface_param->value); 2134 break; 2135 case ISCSI_NET_PARAM_PORT: 2136 /* Autocfg applies to even interface */ 2137 if (iface_param->iface_num & 0x1) 2138 break; 2139 2140 init_fw_cb->ipv6_port = 2141 cpu_to_le16(*(uint16_t *)iface_param->value); 2142 break; 2143 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2144 if (iface_param->iface_num & 0x1) 2145 break; 2146 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2147 init_fw_cb->ipv6_tcp_opts |= 2148 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2149 else 2150 init_fw_cb->ipv6_tcp_opts &= 2151 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE & 2152 0xFFFF); 2153 break; 2154 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2155 if (iface_param->iface_num & 0x1) 2156 break; 2157 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2158 init_fw_cb->ipv6_tcp_opts |= 2159 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2160 else 2161 init_fw_cb->ipv6_tcp_opts &= 2162 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2163 break; 2164 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2165 if (iface_param->iface_num & 0x1) 2166 break; 2167 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2168 init_fw_cb->ipv6_tcp_opts |= 2169 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2170 else 2171 init_fw_cb->ipv6_tcp_opts &= 2172 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2173 break; 2174 case ISCSI_NET_PARAM_TCP_WSF: 2175 if (iface_param->iface_num & 0x1) 2176 break; 2177 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; 2178 break; 2179 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2180 if (iface_param->iface_num & 0x1) 2181 break; 2182 init_fw_cb->ipv6_tcp_opts &= 2183 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); 2184 init_fw_cb->ipv6_tcp_opts |= 2185 cpu_to_le16((iface_param->value[0] << 1) & 2186 IPV6_TCPOPT_TIMER_SCALE); 2187 break; 2188 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2189 if (iface_param->iface_num & 0x1) 2190 break; 2191 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2192 init_fw_cb->ipv6_tcp_opts |= 2193 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); 2194 else 2195 init_fw_cb->ipv6_tcp_opts &= 2196 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); 2197 break; 2198 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 2199 if (iface_param->iface_num & 0x1) 2200 break; 2201 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2202 init_fw_cb->ipv6_opts |= 2203 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2204 else 2205 init_fw_cb->ipv6_opts &= 2206 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2207 break; 2208 case ISCSI_NET_PARAM_REDIRECT_EN: 2209 if (iface_param->iface_num & 0x1) 2210 break; 2211 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2212 init_fw_cb->ipv6_opts |= 2213 cpu_to_le16(IPV6_OPT_REDIRECT_EN); 2214 else 2215 init_fw_cb->ipv6_opts &= 2216 cpu_to_le16(~IPV6_OPT_REDIRECT_EN); 2217 break; 2218 case ISCSI_NET_PARAM_IPV6_MLD_EN: 2219 if (iface_param->iface_num & 0x1) 2220 break; 2221 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2222 init_fw_cb->ipv6_addtl_opts |= 2223 cpu_to_le16(IPV6_ADDOPT_MLD_EN); 2224 else 2225 init_fw_cb->ipv6_addtl_opts &= 2226 cpu_to_le16(~IPV6_ADDOPT_MLD_EN); 2227 break; 2228 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 2229 if (iface_param->iface_num & 0x1) 2230 break; 2231 init_fw_cb->ipv6_flow_lbl = 2232 cpu_to_le16(*(uint16_t *)iface_param->value); 2233 break; 2234 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 2235 if (iface_param->iface_num & 0x1) 2236 break; 2237 init_fw_cb->ipv6_traffic_class = iface_param->value[0]; 2238 break; 2239 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 2240 if (iface_param->iface_num & 0x1) 2241 break; 2242 init_fw_cb->ipv6_hop_limit = iface_param->value[0]; 2243 break; 2244 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 2245 if (iface_param->iface_num & 0x1) 2246 break; 2247 init_fw_cb->ipv6_nd_reach_time = 2248 cpu_to_le32(*(uint32_t *)iface_param->value); 2249 break; 2250 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 2251 if (iface_param->iface_num & 0x1) 2252 break; 2253 init_fw_cb->ipv6_nd_rexmit_timer = 2254 cpu_to_le32(*(uint32_t *)iface_param->value); 2255 break; 2256 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 2257 if (iface_param->iface_num & 0x1) 2258 break; 2259 init_fw_cb->ipv6_nd_stale_timeout = 2260 cpu_to_le32(*(uint32_t *)iface_param->value); 2261 break; 2262 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 2263 if (iface_param->iface_num & 0x1) 2264 break; 2265 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; 2266 break; 2267 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 2268 if (iface_param->iface_num & 0x1) 2269 break; 2270 init_fw_cb->ipv6_gw_advrt_mtu = 2271 cpu_to_le32(*(uint32_t *)iface_param->value); 2272 break; 2273 default: 2274 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 2275 iface_param->param); 2276 break; 2277 } 2278 } 2279 2280 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 2281 struct iscsi_iface_param_info *iface_param, 2282 struct addr_ctrl_blk *init_fw_cb) 2283 { 2284 switch (iface_param->param) { 2285 case ISCSI_NET_PARAM_IPV4_ADDR: 2286 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 2287 sizeof(init_fw_cb->ipv4_addr)); 2288 break; 2289 case ISCSI_NET_PARAM_IPV4_SUBNET: 2290 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 2291 sizeof(init_fw_cb->ipv4_subnet)); 2292 break; 2293 case ISCSI_NET_PARAM_IPV4_GW: 2294 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 2295 sizeof(init_fw_cb->ipv4_gw_addr)); 2296 break; 2297 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 2298 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 2299 init_fw_cb->ipv4_tcp_opts |= 2300 cpu_to_le16(TCPOPT_DHCP_ENABLE); 2301 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 2302 init_fw_cb->ipv4_tcp_opts &= 2303 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 2304 else 2305 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 2306 break; 2307 case ISCSI_NET_PARAM_IFACE_ENABLE: 2308 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2309 init_fw_cb->ipv4_ip_opts |= 2310 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 2311 qla4xxx_create_ipv4_iface(ha); 2312 } else { 2313 init_fw_cb->ipv4_ip_opts &= 2314 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 2315 0xFFFF); 2316 qla4xxx_destroy_ipv4_iface(ha); 2317 } 2318 break; 2319 case ISCSI_NET_PARAM_VLAN_TAG: 2320 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 2321 break; 2322 init_fw_cb->ipv4_vlan_tag = 2323 cpu_to_be16(*(uint16_t *)iface_param->value); 2324 break; 2325 case ISCSI_NET_PARAM_VLAN_ENABLED: 2326 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2327 init_fw_cb->ipv4_ip_opts |= 2328 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 2329 else 2330 init_fw_cb->ipv4_ip_opts &= 2331 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 2332 break; 2333 case ISCSI_NET_PARAM_MTU: 2334 init_fw_cb->eth_mtu_size = 2335 cpu_to_le16(*(uint16_t *)iface_param->value); 2336 break; 2337 case ISCSI_NET_PARAM_PORT: 2338 init_fw_cb->ipv4_port = 2339 cpu_to_le16(*(uint16_t *)iface_param->value); 2340 break; 2341 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2342 if (iface_param->iface_num & 0x1) 2343 break; 2344 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2345 init_fw_cb->ipv4_tcp_opts |= 2346 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); 2347 else 2348 init_fw_cb->ipv4_tcp_opts &= 2349 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE & 2350 0xFFFF); 2351 break; 2352 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2353 if (iface_param->iface_num & 0x1) 2354 break; 2355 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2356 init_fw_cb->ipv4_tcp_opts |= 2357 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE); 2358 else 2359 init_fw_cb->ipv4_tcp_opts &= 2360 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); 2361 break; 2362 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2363 if (iface_param->iface_num & 0x1) 2364 break; 2365 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2366 init_fw_cb->ipv4_tcp_opts |= 2367 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); 2368 else 2369 init_fw_cb->ipv4_tcp_opts &= 2370 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); 2371 break; 2372 case ISCSI_NET_PARAM_TCP_WSF: 2373 if (iface_param->iface_num & 0x1) 2374 break; 2375 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; 2376 break; 2377 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2378 if (iface_param->iface_num & 0x1) 2379 break; 2380 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); 2381 init_fw_cb->ipv4_tcp_opts |= 2382 cpu_to_le16((iface_param->value[0] << 1) & 2383 TCPOPT_TIMER_SCALE); 2384 break; 2385 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2386 if (iface_param->iface_num & 0x1) 2387 break; 2388 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2389 init_fw_cb->ipv4_tcp_opts |= 2390 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); 2391 else 2392 init_fw_cb->ipv4_tcp_opts &= 2393 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); 2394 break; 2395 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 2396 if (iface_param->iface_num & 0x1) 2397 break; 2398 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2399 init_fw_cb->ipv4_tcp_opts |= 2400 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); 2401 else 2402 init_fw_cb->ipv4_tcp_opts &= 2403 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); 2404 break; 2405 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 2406 if (iface_param->iface_num & 0x1) 2407 break; 2408 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2409 init_fw_cb->ipv4_tcp_opts |= 2410 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); 2411 else 2412 init_fw_cb->ipv4_tcp_opts &= 2413 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); 2414 break; 2415 case ISCSI_NET_PARAM_IPV4_TOS_EN: 2416 if (iface_param->iface_num & 0x1) 2417 break; 2418 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2419 init_fw_cb->ipv4_ip_opts |= 2420 cpu_to_le16(IPOPT_IPV4_TOS_EN); 2421 else 2422 init_fw_cb->ipv4_ip_opts &= 2423 cpu_to_le16(~IPOPT_IPV4_TOS_EN); 2424 break; 2425 case ISCSI_NET_PARAM_IPV4_TOS: 2426 if (iface_param->iface_num & 0x1) 2427 break; 2428 init_fw_cb->ipv4_tos = iface_param->value[0]; 2429 break; 2430 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 2431 if (iface_param->iface_num & 0x1) 2432 break; 2433 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2434 init_fw_cb->ipv4_ip_opts |= 2435 cpu_to_le16(IPOPT_GRAT_ARP_EN); 2436 else 2437 init_fw_cb->ipv4_ip_opts &= 2438 cpu_to_le16(~IPOPT_GRAT_ARP_EN); 2439 break; 2440 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 2441 if (iface_param->iface_num & 0x1) 2442 break; 2443 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2444 init_fw_cb->ipv4_ip_opts |= 2445 cpu_to_le16(IPOPT_ALT_CID_EN); 2446 else 2447 init_fw_cb->ipv4_ip_opts &= 2448 cpu_to_le16(~IPOPT_ALT_CID_EN); 2449 break; 2450 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 2451 if (iface_param->iface_num & 0x1) 2452 break; 2453 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, 2454 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); 2455 init_fw_cb->ipv4_dhcp_alt_cid_len = 2456 strlen(init_fw_cb->ipv4_dhcp_alt_cid); 2457 break; 2458 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 2459 if (iface_param->iface_num & 0x1) 2460 break; 2461 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2462 init_fw_cb->ipv4_ip_opts |= 2463 cpu_to_le16(IPOPT_REQ_VID_EN); 2464 else 2465 init_fw_cb->ipv4_ip_opts &= 2466 cpu_to_le16(~IPOPT_REQ_VID_EN); 2467 break; 2468 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 2469 if (iface_param->iface_num & 0x1) 2470 break; 2471 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2472 init_fw_cb->ipv4_ip_opts |= 2473 cpu_to_le16(IPOPT_USE_VID_EN); 2474 else 2475 init_fw_cb->ipv4_ip_opts &= 2476 cpu_to_le16(~IPOPT_USE_VID_EN); 2477 break; 2478 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 2479 if (iface_param->iface_num & 0x1) 2480 break; 2481 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, 2482 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); 2483 init_fw_cb->ipv4_dhcp_vid_len = 2484 strlen(init_fw_cb->ipv4_dhcp_vid); 2485 break; 2486 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 2487 if (iface_param->iface_num & 0x1) 2488 break; 2489 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2490 init_fw_cb->ipv4_ip_opts |= 2491 cpu_to_le16(IPOPT_LEARN_IQN_EN); 2492 else 2493 init_fw_cb->ipv4_ip_opts &= 2494 cpu_to_le16(~IPOPT_LEARN_IQN_EN); 2495 break; 2496 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 2497 if (iface_param->iface_num & 0x1) 2498 break; 2499 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2500 init_fw_cb->ipv4_ip_opts |= 2501 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); 2502 else 2503 init_fw_cb->ipv4_ip_opts &= 2504 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); 2505 break; 2506 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 2507 if (iface_param->iface_num & 0x1) 2508 break; 2509 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2510 init_fw_cb->ipv4_ip_opts |= 2511 cpu_to_le16(IPOPT_IN_FORWARD_EN); 2512 else 2513 init_fw_cb->ipv4_ip_opts &= 2514 cpu_to_le16(~IPOPT_IN_FORWARD_EN); 2515 break; 2516 case ISCSI_NET_PARAM_REDIRECT_EN: 2517 if (iface_param->iface_num & 0x1) 2518 break; 2519 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2520 init_fw_cb->ipv4_ip_opts |= 2521 cpu_to_le16(IPOPT_ARP_REDIRECT_EN); 2522 else 2523 init_fw_cb->ipv4_ip_opts &= 2524 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); 2525 break; 2526 case ISCSI_NET_PARAM_IPV4_TTL: 2527 if (iface_param->iface_num & 0x1) 2528 break; 2529 init_fw_cb->ipv4_ttl = iface_param->value[0]; 2530 break; 2531 default: 2532 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 2533 iface_param->param); 2534 break; 2535 } 2536 } 2537 2538 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, 2539 struct iscsi_iface_param_info *iface_param, 2540 struct addr_ctrl_blk *init_fw_cb) 2541 { 2542 switch (iface_param->param) { 2543 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 2544 if (iface_param->iface_num & 0x1) 2545 break; 2546 init_fw_cb->def_timeout = 2547 cpu_to_le16(*(uint16_t *)iface_param->value); 2548 break; 2549 case ISCSI_IFACE_PARAM_HDRDGST_EN: 2550 if (iface_param->iface_num & 0x1) 2551 break; 2552 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2553 init_fw_cb->iscsi_opts |= 2554 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); 2555 else 2556 init_fw_cb->iscsi_opts &= 2557 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); 2558 break; 2559 case ISCSI_IFACE_PARAM_DATADGST_EN: 2560 if (iface_param->iface_num & 0x1) 2561 break; 2562 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2563 init_fw_cb->iscsi_opts |= 2564 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); 2565 else 2566 init_fw_cb->iscsi_opts &= 2567 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); 2568 break; 2569 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 2570 if (iface_param->iface_num & 0x1) 2571 break; 2572 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2573 init_fw_cb->iscsi_opts |= 2574 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); 2575 else 2576 init_fw_cb->iscsi_opts &= 2577 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); 2578 break; 2579 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 2580 if (iface_param->iface_num & 0x1) 2581 break; 2582 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2583 init_fw_cb->iscsi_opts |= 2584 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); 2585 else 2586 init_fw_cb->iscsi_opts &= 2587 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); 2588 break; 2589 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 2590 if (iface_param->iface_num & 0x1) 2591 break; 2592 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2593 init_fw_cb->iscsi_opts |= 2594 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); 2595 else 2596 init_fw_cb->iscsi_opts &= 2597 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); 2598 break; 2599 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 2600 if (iface_param->iface_num & 0x1) 2601 break; 2602 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2603 init_fw_cb->iscsi_opts |= 2604 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); 2605 else 2606 init_fw_cb->iscsi_opts &= 2607 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); 2608 break; 2609 case ISCSI_IFACE_PARAM_ERL: 2610 if (iface_param->iface_num & 0x1) 2611 break; 2612 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); 2613 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & 2614 ISCSIOPTS_ERL); 2615 break; 2616 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 2617 if (iface_param->iface_num & 0x1) 2618 break; 2619 init_fw_cb->iscsi_max_pdu_size = 2620 cpu_to_le32(*(uint32_t *)iface_param->value) / 2621 BYTE_UNITS; 2622 break; 2623 case ISCSI_IFACE_PARAM_FIRST_BURST: 2624 if (iface_param->iface_num & 0x1) 2625 break; 2626 init_fw_cb->iscsi_fburst_len = 2627 cpu_to_le32(*(uint32_t *)iface_param->value) / 2628 BYTE_UNITS; 2629 break; 2630 case ISCSI_IFACE_PARAM_MAX_R2T: 2631 if (iface_param->iface_num & 0x1) 2632 break; 2633 init_fw_cb->iscsi_max_outstnd_r2t = 2634 cpu_to_le16(*(uint16_t *)iface_param->value); 2635 break; 2636 case ISCSI_IFACE_PARAM_MAX_BURST: 2637 if (iface_param->iface_num & 0x1) 2638 break; 2639 init_fw_cb->iscsi_max_burst_len = 2640 cpu_to_le32(*(uint32_t *)iface_param->value) / 2641 BYTE_UNITS; 2642 break; 2643 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 2644 if (iface_param->iface_num & 0x1) 2645 break; 2646 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2647 init_fw_cb->iscsi_opts |= 2648 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); 2649 else 2650 init_fw_cb->iscsi_opts &= 2651 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); 2652 break; 2653 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 2654 if (iface_param->iface_num & 0x1) 2655 break; 2656 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2657 init_fw_cb->iscsi_opts |= 2658 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); 2659 else 2660 init_fw_cb->iscsi_opts &= 2661 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); 2662 break; 2663 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 2664 if (iface_param->iface_num & 0x1) 2665 break; 2666 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2667 init_fw_cb->iscsi_opts |= 2668 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); 2669 else 2670 init_fw_cb->iscsi_opts &= 2671 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); 2672 break; 2673 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 2674 if (iface_param->iface_num & 0x1) 2675 break; 2676 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2677 init_fw_cb->iscsi_opts |= 2678 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2679 else 2680 init_fw_cb->iscsi_opts &= 2681 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2682 break; 2683 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 2684 if (iface_param->iface_num & 0x1) 2685 break; 2686 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2687 init_fw_cb->iscsi_opts |= 2688 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2689 else 2690 init_fw_cb->iscsi_opts &= 2691 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2692 break; 2693 default: 2694 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", 2695 iface_param->param); 2696 break; 2697 } 2698 } 2699 2700 static void 2701 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 2702 { 2703 struct addr_ctrl_blk_def *acb; 2704 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 2705 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 2706 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 2707 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 2708 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 2709 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 2710 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 2711 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 2712 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 2713 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 2714 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 2715 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 2716 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 2717 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 2718 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 2719 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 2720 } 2721 2722 static int 2723 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 2724 { 2725 struct scsi_qla_host *ha = to_qla_host(shost); 2726 int rval = 0; 2727 struct iscsi_iface_param_info *iface_param = NULL; 2728 struct addr_ctrl_blk *init_fw_cb = NULL; 2729 dma_addr_t init_fw_cb_dma; 2730 uint32_t mbox_cmd[MBOX_REG_COUNT]; 2731 uint32_t mbox_sts[MBOX_REG_COUNT]; 2732 uint32_t rem = len; 2733 struct nlattr *attr; 2734 2735 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 2736 sizeof(struct addr_ctrl_blk), 2737 &init_fw_cb_dma, GFP_KERNEL); 2738 if (!init_fw_cb) { 2739 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 2740 __func__); 2741 return -ENOMEM; 2742 } 2743 2744 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 2745 memset(&mbox_sts, 0, sizeof(mbox_sts)); 2746 2747 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 2748 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 2749 rval = -EIO; 2750 goto exit_init_fw_cb; 2751 } 2752 2753 nla_for_each_attr(attr, data, len, rem) { 2754 iface_param = nla_data(attr); 2755 2756 if (iface_param->param_type == ISCSI_NET_PARAM) { 2757 switch (iface_param->iface_type) { 2758 case ISCSI_IFACE_TYPE_IPV4: 2759 switch (iface_param->iface_num) { 2760 case 0: 2761 qla4xxx_set_ipv4(ha, iface_param, 2762 init_fw_cb); 2763 break; 2764 default: 2765 /* Cannot have more than one IPv4 interface */ 2766 ql4_printk(KERN_ERR, ha, 2767 "Invalid IPv4 iface number = %d\n", 2768 iface_param->iface_num); 2769 break; 2770 } 2771 break; 2772 case ISCSI_IFACE_TYPE_IPV6: 2773 switch (iface_param->iface_num) { 2774 case 0: 2775 case 1: 2776 qla4xxx_set_ipv6(ha, iface_param, 2777 init_fw_cb); 2778 break; 2779 default: 2780 /* Cannot have more than two IPv6 interface */ 2781 ql4_printk(KERN_ERR, ha, 2782 "Invalid IPv6 iface number = %d\n", 2783 iface_param->iface_num); 2784 break; 2785 } 2786 break; 2787 default: 2788 ql4_printk(KERN_ERR, ha, 2789 "Invalid iface type\n"); 2790 break; 2791 } 2792 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { 2793 qla4xxx_set_iscsi_param(ha, iface_param, 2794 init_fw_cb); 2795 } else { 2796 continue; 2797 } 2798 } 2799 2800 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 2801 2802 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 2803 sizeof(struct addr_ctrl_blk), 2804 FLASH_OPT_RMW_COMMIT); 2805 if (rval != QLA_SUCCESS) { 2806 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 2807 __func__); 2808 rval = -EIO; 2809 goto exit_init_fw_cb; 2810 } 2811 2812 rval = qla4xxx_disable_acb(ha); 2813 if (rval != QLA_SUCCESS) { 2814 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 2815 __func__); 2816 rval = -EIO; 2817 goto exit_init_fw_cb; 2818 } 2819 2820 wait_for_completion_timeout(&ha->disable_acb_comp, 2821 DISABLE_ACB_TOV * HZ); 2822 2823 qla4xxx_initcb_to_acb(init_fw_cb); 2824 2825 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 2826 if (rval != QLA_SUCCESS) { 2827 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 2828 __func__); 2829 rval = -EIO; 2830 goto exit_init_fw_cb; 2831 } 2832 2833 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2834 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 2835 init_fw_cb_dma); 2836 2837 exit_init_fw_cb: 2838 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 2839 init_fw_cb, init_fw_cb_dma); 2840 2841 return rval; 2842 } 2843 2844 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 2845 enum iscsi_param param, char *buf) 2846 { 2847 struct iscsi_session *sess = cls_sess->dd_data; 2848 struct ddb_entry *ddb_entry = sess->dd_data; 2849 struct scsi_qla_host *ha = ddb_entry->ha; 2850 struct iscsi_cls_conn *cls_conn = ddb_entry->conn; 2851 struct ql4_chap_table chap_tbl; 2852 int rval, len; 2853 uint16_t idx; 2854 2855 memset(&chap_tbl, 0, sizeof(chap_tbl)); 2856 switch (param) { 2857 case ISCSI_PARAM_CHAP_IN_IDX: 2858 rval = qla4xxx_get_chap_index(ha, sess->username_in, 2859 sess->password_in, BIDI_CHAP, 2860 &idx); 2861 if (rval) 2862 len = sprintf(buf, "\n"); 2863 else 2864 len = sprintf(buf, "%hu\n", idx); 2865 break; 2866 case ISCSI_PARAM_CHAP_OUT_IDX: 2867 if (ddb_entry->ddb_type == FLASH_DDB) { 2868 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 2869 idx = ddb_entry->chap_tbl_idx; 2870 rval = QLA_SUCCESS; 2871 } else { 2872 rval = QLA_ERROR; 2873 } 2874 } else { 2875 rval = qla4xxx_get_chap_index(ha, sess->username, 2876 sess->password, 2877 LOCAL_CHAP, &idx); 2878 } 2879 if (rval) 2880 len = sprintf(buf, "\n"); 2881 else 2882 len = sprintf(buf, "%hu\n", idx); 2883 break; 2884 case ISCSI_PARAM_USERNAME: 2885 case ISCSI_PARAM_PASSWORD: 2886 /* First, populate session username and password for FLASH DDB, 2887 * if not already done. This happens when session login fails 2888 * for a FLASH DDB. 2889 */ 2890 if (ddb_entry->ddb_type == FLASH_DDB && 2891 ddb_entry->chap_tbl_idx != INVALID_ENTRY && 2892 !sess->username && !sess->password) { 2893 idx = ddb_entry->chap_tbl_idx; 2894 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 2895 chap_tbl.secret, 2896 idx); 2897 if (!rval) { 2898 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 2899 (char *)chap_tbl.name, 2900 strlen((char *)chap_tbl.name)); 2901 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 2902 (char *)chap_tbl.secret, 2903 chap_tbl.secret_len); 2904 } 2905 } 2906 fallthrough; 2907 default: 2908 return iscsi_session_get_param(cls_sess, param, buf); 2909 } 2910 2911 return len; 2912 } 2913 2914 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 2915 enum iscsi_param param, char *buf) 2916 { 2917 struct iscsi_conn *conn; 2918 struct qla_conn *qla_conn; 2919 struct sockaddr *dst_addr; 2920 2921 conn = cls_conn->dd_data; 2922 qla_conn = conn->dd_data; 2923 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 2924 2925 switch (param) { 2926 case ISCSI_PARAM_CONN_PORT: 2927 case ISCSI_PARAM_CONN_ADDRESS: 2928 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 2929 dst_addr, param, buf); 2930 default: 2931 return iscsi_conn_get_param(cls_conn, param, buf); 2932 } 2933 } 2934 2935 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 2936 { 2937 uint32_t mbx_sts = 0; 2938 uint16_t tmp_ddb_index; 2939 int ret; 2940 2941 get_ddb_index: 2942 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 2943 2944 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 2945 DEBUG2(ql4_printk(KERN_INFO, ha, 2946 "Free DDB index not available\n")); 2947 ret = QLA_ERROR; 2948 goto exit_get_ddb_index; 2949 } 2950 2951 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 2952 goto get_ddb_index; 2953 2954 DEBUG2(ql4_printk(KERN_INFO, ha, 2955 "Found a free DDB index at %d\n", tmp_ddb_index)); 2956 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 2957 if (ret == QLA_ERROR) { 2958 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 2959 ql4_printk(KERN_INFO, ha, 2960 "DDB index = %d not available trying next\n", 2961 tmp_ddb_index); 2962 goto get_ddb_index; 2963 } 2964 DEBUG2(ql4_printk(KERN_INFO, ha, 2965 "Free FW DDB not available\n")); 2966 } 2967 2968 *ddb_index = tmp_ddb_index; 2969 2970 exit_get_ddb_index: 2971 return ret; 2972 } 2973 2974 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 2975 struct ddb_entry *ddb_entry, 2976 char *existing_ipaddr, 2977 char *user_ipaddr) 2978 { 2979 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 2980 char formatted_ipaddr[DDB_IPADDR_LEN]; 2981 int status = QLA_SUCCESS, ret = 0; 2982 2983 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 2984 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2985 '\0', NULL); 2986 if (ret == 0) { 2987 status = QLA_ERROR; 2988 goto out_match; 2989 } 2990 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 2991 } else { 2992 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2993 '\0', NULL); 2994 if (ret == 0) { 2995 status = QLA_ERROR; 2996 goto out_match; 2997 } 2998 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 2999 } 3000 3001 if (strcmp(existing_ipaddr, formatted_ipaddr)) 3002 status = QLA_ERROR; 3003 3004 out_match: 3005 return status; 3006 } 3007 3008 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 3009 struct iscsi_cls_conn *cls_conn) 3010 { 3011 int idx = 0, max_ddbs, rval; 3012 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3013 struct iscsi_session *sess, *existing_sess; 3014 struct iscsi_conn *conn, *existing_conn; 3015 struct ddb_entry *ddb_entry; 3016 3017 sess = cls_sess->dd_data; 3018 conn = cls_conn->dd_data; 3019 3020 if (sess->targetname == NULL || 3021 conn->persistent_address == NULL || 3022 conn->persistent_port == 0) 3023 return QLA_ERROR; 3024 3025 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 3026 MAX_DEV_DB_ENTRIES; 3027 3028 for (idx = 0; idx < max_ddbs; idx++) { 3029 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 3030 if (ddb_entry == NULL) 3031 continue; 3032 3033 if (ddb_entry->ddb_type != FLASH_DDB) 3034 continue; 3035 3036 existing_sess = ddb_entry->sess->dd_data; 3037 existing_conn = ddb_entry->conn->dd_data; 3038 3039 if (existing_sess->targetname == NULL || 3040 existing_conn->persistent_address == NULL || 3041 existing_conn->persistent_port == 0) 3042 continue; 3043 3044 DEBUG2(ql4_printk(KERN_INFO, ha, 3045 "IQN = %s User IQN = %s\n", 3046 existing_sess->targetname, 3047 sess->targetname)); 3048 3049 DEBUG2(ql4_printk(KERN_INFO, ha, 3050 "IP = %s User IP = %s\n", 3051 existing_conn->persistent_address, 3052 conn->persistent_address)); 3053 3054 DEBUG2(ql4_printk(KERN_INFO, ha, 3055 "Port = %d User Port = %d\n", 3056 existing_conn->persistent_port, 3057 conn->persistent_port)); 3058 3059 if (strcmp(existing_sess->targetname, sess->targetname)) 3060 continue; 3061 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 3062 existing_conn->persistent_address, 3063 conn->persistent_address); 3064 if (rval == QLA_ERROR) 3065 continue; 3066 if (existing_conn->persistent_port != conn->persistent_port) 3067 continue; 3068 break; 3069 } 3070 3071 if (idx == max_ddbs) 3072 return QLA_ERROR; 3073 3074 DEBUG2(ql4_printk(KERN_INFO, ha, 3075 "Match found in fwdb sessions\n")); 3076 return QLA_SUCCESS; 3077 } 3078 3079 static struct iscsi_cls_session * 3080 qla4xxx_session_create(struct iscsi_endpoint *ep, 3081 uint16_t cmds_max, uint16_t qdepth, 3082 uint32_t initial_cmdsn) 3083 { 3084 struct iscsi_cls_session *cls_sess; 3085 struct scsi_qla_host *ha; 3086 struct qla_endpoint *qla_ep; 3087 struct ddb_entry *ddb_entry; 3088 uint16_t ddb_index; 3089 struct iscsi_session *sess; 3090 int ret; 3091 3092 if (!ep) { 3093 printk(KERN_ERR "qla4xxx: missing ep.\n"); 3094 return NULL; 3095 } 3096 3097 qla_ep = ep->dd_data; 3098 ha = to_qla_host(qla_ep->host); 3099 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3100 ha->host_no)); 3101 3102 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 3103 if (ret == QLA_ERROR) 3104 return NULL; 3105 3106 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 3107 cmds_max, sizeof(struct ddb_entry), 3108 sizeof(struct ql4_task_data), 3109 initial_cmdsn, ddb_index); 3110 if (!cls_sess) 3111 return NULL; 3112 3113 sess = cls_sess->dd_data; 3114 ddb_entry = sess->dd_data; 3115 ddb_entry->fw_ddb_index = ddb_index; 3116 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 3117 ddb_entry->ha = ha; 3118 ddb_entry->sess = cls_sess; 3119 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 3120 ddb_entry->ddb_change = qla4xxx_ddb_change; 3121 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); 3122 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 3123 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 3124 ha->tot_ddbs++; 3125 3126 return cls_sess; 3127 } 3128 3129 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 3130 { 3131 struct iscsi_session *sess; 3132 struct ddb_entry *ddb_entry; 3133 struct scsi_qla_host *ha; 3134 unsigned long flags, wtime; 3135 struct dev_db_entry *fw_ddb_entry = NULL; 3136 dma_addr_t fw_ddb_entry_dma; 3137 uint32_t ddb_state; 3138 int ret; 3139 3140 sess = cls_sess->dd_data; 3141 ddb_entry = sess->dd_data; 3142 ha = ddb_entry->ha; 3143 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3144 ha->host_no)); 3145 3146 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3147 &fw_ddb_entry_dma, GFP_KERNEL); 3148 if (!fw_ddb_entry) { 3149 ql4_printk(KERN_ERR, ha, 3150 "%s: Unable to allocate dma buffer\n", __func__); 3151 goto destroy_session; 3152 } 3153 3154 wtime = jiffies + (HZ * LOGOUT_TOV); 3155 do { 3156 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 3157 fw_ddb_entry, fw_ddb_entry_dma, 3158 NULL, NULL, &ddb_state, NULL, 3159 NULL, NULL); 3160 if (ret == QLA_ERROR) 3161 goto destroy_session; 3162 3163 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 3164 (ddb_state == DDB_DS_SESSION_FAILED)) 3165 goto destroy_session; 3166 3167 schedule_timeout_uninterruptible(HZ); 3168 } while ((time_after(wtime, jiffies))); 3169 3170 destroy_session: 3171 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 3172 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) 3173 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 3174 spin_lock_irqsave(&ha->hardware_lock, flags); 3175 qla4xxx_free_ddb(ha, ddb_entry); 3176 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3177 3178 iscsi_session_teardown(cls_sess); 3179 3180 if (fw_ddb_entry) 3181 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3182 fw_ddb_entry, fw_ddb_entry_dma); 3183 } 3184 3185 static struct iscsi_cls_conn * 3186 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 3187 { 3188 struct iscsi_cls_conn *cls_conn; 3189 struct iscsi_session *sess; 3190 struct ddb_entry *ddb_entry; 3191 struct scsi_qla_host *ha; 3192 3193 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 3194 conn_idx); 3195 if (!cls_conn) { 3196 pr_info("%s: Can not create connection for conn_idx = %u\n", 3197 __func__, conn_idx); 3198 return NULL; 3199 } 3200 3201 sess = cls_sess->dd_data; 3202 ddb_entry = sess->dd_data; 3203 ddb_entry->conn = cls_conn; 3204 3205 ha = ddb_entry->ha; 3206 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__, 3207 conn_idx)); 3208 return cls_conn; 3209 } 3210 3211 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 3212 struct iscsi_cls_conn *cls_conn, 3213 uint64_t transport_fd, int is_leading) 3214 { 3215 struct iscsi_conn *conn; 3216 struct qla_conn *qla_conn; 3217 struct iscsi_endpoint *ep; 3218 struct ddb_entry *ddb_entry; 3219 struct scsi_qla_host *ha; 3220 struct iscsi_session *sess; 3221 3222 sess = cls_session->dd_data; 3223 ddb_entry = sess->dd_data; 3224 ha = ddb_entry->ha; 3225 3226 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3227 cls_session->sid, cls_conn->cid)); 3228 3229 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 3230 return -EINVAL; 3231 ep = iscsi_lookup_endpoint(transport_fd); 3232 if (!ep) 3233 return -EINVAL; 3234 conn = cls_conn->dd_data; 3235 qla_conn = conn->dd_data; 3236 qla_conn->qla_ep = ep->dd_data; 3237 iscsi_put_endpoint(ep); 3238 return 0; 3239 } 3240 3241 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3242 { 3243 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3244 struct iscsi_session *sess; 3245 struct ddb_entry *ddb_entry; 3246 struct scsi_qla_host *ha; 3247 struct dev_db_entry *fw_ddb_entry = NULL; 3248 dma_addr_t fw_ddb_entry_dma; 3249 uint32_t mbx_sts = 0; 3250 int ret = 0; 3251 int status = QLA_SUCCESS; 3252 3253 sess = cls_sess->dd_data; 3254 ddb_entry = sess->dd_data; 3255 ha = ddb_entry->ha; 3256 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3257 cls_sess->sid, cls_conn->cid)); 3258 3259 /* Check if we have matching FW DDB, if yes then do not 3260 * login to this target. This could cause target to logout previous 3261 * connection 3262 */ 3263 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3264 if (ret == QLA_SUCCESS) { 3265 ql4_printk(KERN_INFO, ha, 3266 "Session already exist in FW.\n"); 3267 ret = -EEXIST; 3268 goto exit_conn_start; 3269 } 3270 3271 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3272 &fw_ddb_entry_dma, GFP_KERNEL); 3273 if (!fw_ddb_entry) { 3274 ql4_printk(KERN_ERR, ha, 3275 "%s: Unable to allocate dma buffer\n", __func__); 3276 ret = -ENOMEM; 3277 goto exit_conn_start; 3278 } 3279 3280 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3281 if (ret) { 3282 /* If iscsid is stopped and started then no need to do 3283 * set param again since ddb state will be already 3284 * active and FW does not allow set ddb to an 3285 * active session. 3286 */ 3287 if (mbx_sts) 3288 if (ddb_entry->fw_ddb_device_state == 3289 DDB_DS_SESSION_ACTIVE) { 3290 ddb_entry->unblock_sess(ddb_entry->sess); 3291 goto exit_set_param; 3292 } 3293 3294 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3295 __func__, ddb_entry->fw_ddb_index); 3296 goto exit_conn_start; 3297 } 3298 3299 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3300 if (status == QLA_ERROR) { 3301 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3302 sess->targetname); 3303 ret = -EINVAL; 3304 goto exit_conn_start; 3305 } 3306 3307 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3308 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3309 3310 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3311 ddb_entry->fw_ddb_device_state)); 3312 3313 exit_set_param: 3314 ret = 0; 3315 3316 exit_conn_start: 3317 if (fw_ddb_entry) 3318 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3319 fw_ddb_entry, fw_ddb_entry_dma); 3320 return ret; 3321 } 3322 3323 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3324 { 3325 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3326 struct iscsi_session *sess; 3327 struct scsi_qla_host *ha; 3328 struct ddb_entry *ddb_entry; 3329 int options; 3330 3331 sess = cls_sess->dd_data; 3332 ddb_entry = sess->dd_data; 3333 ha = ddb_entry->ha; 3334 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, 3335 cls_conn->cid)); 3336 3337 options = LOGOUT_OPTION_CLOSE_SESSION; 3338 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3339 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3340 } 3341 3342 static void qla4xxx_task_work(struct work_struct *wdata) 3343 { 3344 struct ql4_task_data *task_data; 3345 struct scsi_qla_host *ha; 3346 struct passthru_status *sts; 3347 struct iscsi_task *task; 3348 struct iscsi_hdr *hdr; 3349 uint8_t *data; 3350 uint32_t data_len; 3351 struct iscsi_conn *conn; 3352 int hdr_len; 3353 itt_t itt; 3354 3355 task_data = container_of(wdata, struct ql4_task_data, task_work); 3356 ha = task_data->ha; 3357 task = task_data->task; 3358 sts = &task_data->sts; 3359 hdr_len = sizeof(struct iscsi_hdr); 3360 3361 DEBUG3(printk(KERN_INFO "Status returned\n")); 3362 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3363 DEBUG3(printk(KERN_INFO "Response buffer")); 3364 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3365 3366 conn = task->conn; 3367 3368 switch (sts->completionStatus) { 3369 case PASSTHRU_STATUS_COMPLETE: 3370 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3371 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3372 itt = sts->handle; 3373 hdr->itt = itt; 3374 data = task_data->resp_buffer + hdr_len; 3375 data_len = task_data->resp_len - hdr_len; 3376 iscsi_complete_pdu(conn, hdr, data, data_len); 3377 break; 3378 default: 3379 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3380 sts->completionStatus); 3381 break; 3382 } 3383 return; 3384 } 3385 3386 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3387 { 3388 struct ql4_task_data *task_data; 3389 struct iscsi_session *sess; 3390 struct ddb_entry *ddb_entry; 3391 struct scsi_qla_host *ha; 3392 int hdr_len; 3393 3394 sess = task->conn->session; 3395 ddb_entry = sess->dd_data; 3396 ha = ddb_entry->ha; 3397 task_data = task->dd_data; 3398 memset(task_data, 0, sizeof(struct ql4_task_data)); 3399 3400 if (task->sc) { 3401 ql4_printk(KERN_INFO, ha, 3402 "%s: SCSI Commands not implemented\n", __func__); 3403 return -EINVAL; 3404 } 3405 3406 hdr_len = sizeof(struct iscsi_hdr); 3407 task_data->ha = ha; 3408 task_data->task = task; 3409 3410 if (task->data_count) { 3411 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3412 task->data_count, 3413 DMA_TO_DEVICE); 3414 } 3415 3416 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3417 __func__, task->conn->max_recv_dlength, hdr_len)); 3418 3419 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3420 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3421 task_data->resp_len, 3422 &task_data->resp_dma, 3423 GFP_ATOMIC); 3424 if (!task_data->resp_buffer) 3425 goto exit_alloc_pdu; 3426 3427 task_data->req_len = task->data_count + hdr_len; 3428 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3429 task_data->req_len, 3430 &task_data->req_dma, 3431 GFP_ATOMIC); 3432 if (!task_data->req_buffer) 3433 goto exit_alloc_pdu; 3434 3435 task->hdr = task_data->req_buffer; 3436 3437 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3438 3439 return 0; 3440 3441 exit_alloc_pdu: 3442 if (task_data->resp_buffer) 3443 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3444 task_data->resp_buffer, task_data->resp_dma); 3445 3446 if (task_data->req_buffer) 3447 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3448 task_data->req_buffer, task_data->req_dma); 3449 return -ENOMEM; 3450 } 3451 3452 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3453 { 3454 struct ql4_task_data *task_data; 3455 struct iscsi_session *sess; 3456 struct ddb_entry *ddb_entry; 3457 struct scsi_qla_host *ha; 3458 int hdr_len; 3459 3460 hdr_len = sizeof(struct iscsi_hdr); 3461 sess = task->conn->session; 3462 ddb_entry = sess->dd_data; 3463 ha = ddb_entry->ha; 3464 task_data = task->dd_data; 3465 3466 if (task->data_count) { 3467 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3468 task->data_count, DMA_TO_DEVICE); 3469 } 3470 3471 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3472 __func__, task->conn->max_recv_dlength, hdr_len)); 3473 3474 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3475 task_data->resp_buffer, task_data->resp_dma); 3476 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3477 task_data->req_buffer, task_data->req_dma); 3478 return; 3479 } 3480 3481 static int qla4xxx_task_xmit(struct iscsi_task *task) 3482 { 3483 struct scsi_cmnd *sc = task->sc; 3484 struct iscsi_session *sess = task->conn->session; 3485 struct ddb_entry *ddb_entry = sess->dd_data; 3486 struct scsi_qla_host *ha = ddb_entry->ha; 3487 3488 if (!sc) 3489 return qla4xxx_send_passthru0(task); 3490 3491 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3492 __func__); 3493 return -ENOSYS; 3494 } 3495 3496 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3497 struct iscsi_bus_flash_conn *conn, 3498 struct dev_db_entry *fw_ddb_entry) 3499 { 3500 unsigned long options = 0; 3501 int rc = 0; 3502 3503 options = le16_to_cpu(fw_ddb_entry->options); 3504 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3505 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3506 rc = iscsi_switch_str_param(&sess->portal_type, 3507 PORTAL_TYPE_IPV6); 3508 if (rc) 3509 goto exit_copy; 3510 } else { 3511 rc = iscsi_switch_str_param(&sess->portal_type, 3512 PORTAL_TYPE_IPV4); 3513 if (rc) 3514 goto exit_copy; 3515 } 3516 3517 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3518 &options); 3519 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3520 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3521 3522 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3523 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3524 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3525 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3526 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3527 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3528 &options); 3529 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3530 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3531 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3532 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3533 &options); 3534 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3535 sess->discovery_auth_optional = 3536 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3537 if (test_bit(ISCSIOPT_ERL1, &options)) 3538 sess->erl |= BIT_1; 3539 if (test_bit(ISCSIOPT_ERL0, &options)) 3540 sess->erl |= BIT_0; 3541 3542 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3543 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3544 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3545 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3546 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3547 conn->tcp_timer_scale |= BIT_3; 3548 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3549 conn->tcp_timer_scale |= BIT_2; 3550 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3551 conn->tcp_timer_scale |= BIT_1; 3552 3553 conn->tcp_timer_scale >>= 1; 3554 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3555 3556 options = le16_to_cpu(fw_ddb_entry->ip_options); 3557 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3558 3559 conn->max_recv_dlength = BYTE_UNITS * 3560 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3561 conn->max_xmit_dlength = BYTE_UNITS * 3562 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3563 sess->first_burst = BYTE_UNITS * 3564 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3565 sess->max_burst = BYTE_UNITS * 3566 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3567 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3568 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3569 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3570 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3571 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3572 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3573 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3574 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3575 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3576 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3577 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3578 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3579 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3580 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3581 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3582 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3583 3584 sess->default_taskmgmt_timeout = 3585 le16_to_cpu(fw_ddb_entry->def_timeout); 3586 conn->port = le16_to_cpu(fw_ddb_entry->port); 3587 3588 options = le16_to_cpu(fw_ddb_entry->options); 3589 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3590 if (!conn->ipaddress) { 3591 rc = -ENOMEM; 3592 goto exit_copy; 3593 } 3594 3595 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3596 if (!conn->redirect_ipaddr) { 3597 rc = -ENOMEM; 3598 goto exit_copy; 3599 } 3600 3601 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3602 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3603 3604 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3605 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3606 3607 conn->link_local_ipv6_addr = kmemdup( 3608 fw_ddb_entry->link_local_ipv6_addr, 3609 IPv6_ADDR_LEN, GFP_KERNEL); 3610 if (!conn->link_local_ipv6_addr) { 3611 rc = -ENOMEM; 3612 goto exit_copy; 3613 } 3614 } else { 3615 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3616 } 3617 3618 if (fw_ddb_entry->iscsi_name[0]) { 3619 rc = iscsi_switch_str_param(&sess->targetname, 3620 (char *)fw_ddb_entry->iscsi_name); 3621 if (rc) 3622 goto exit_copy; 3623 } 3624 3625 if (fw_ddb_entry->iscsi_alias[0]) { 3626 rc = iscsi_switch_str_param(&sess->targetalias, 3627 (char *)fw_ddb_entry->iscsi_alias); 3628 if (rc) 3629 goto exit_copy; 3630 } 3631 3632 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3633 3634 exit_copy: 3635 return rc; 3636 } 3637 3638 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3639 struct iscsi_bus_flash_conn *conn, 3640 struct dev_db_entry *fw_ddb_entry) 3641 { 3642 uint16_t options; 3643 int rc = 0; 3644 3645 options = le16_to_cpu(fw_ddb_entry->options); 3646 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3647 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3648 options |= BIT_8; 3649 else 3650 options &= ~BIT_8; 3651 3652 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3653 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3654 SET_BITVAL(sess->entry_state, options, BIT_3); 3655 fw_ddb_entry->options = cpu_to_le16(options); 3656 3657 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3658 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3659 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3660 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3661 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3662 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3663 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3664 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3665 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3666 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3667 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3668 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3669 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3670 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3671 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3672 3673 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3674 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3675 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3676 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3677 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3678 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3679 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3680 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3681 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3682 3683 options = le16_to_cpu(fw_ddb_entry->ip_options); 3684 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3685 fw_ddb_entry->ip_options = cpu_to_le16(options); 3686 3687 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3688 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3689 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3690 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3691 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3692 fw_ddb_entry->iscsi_first_burst_len = 3693 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3694 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3695 BYTE_UNITS); 3696 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3697 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3698 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3699 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3700 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3701 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3702 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3703 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3704 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3705 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3706 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3707 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3708 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3709 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3710 fw_ddb_entry->port = cpu_to_le16(conn->port); 3711 fw_ddb_entry->def_timeout = 3712 cpu_to_le16(sess->default_taskmgmt_timeout); 3713 3714 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3715 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3716 else 3717 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3718 3719 if (conn->ipaddress) 3720 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3721 sizeof(fw_ddb_entry->ip_addr)); 3722 3723 if (conn->redirect_ipaddr) 3724 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3725 sizeof(fw_ddb_entry->tgt_addr)); 3726 3727 if (conn->link_local_ipv6_addr) 3728 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3729 conn->link_local_ipv6_addr, 3730 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3731 3732 if (sess->targetname) 3733 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3734 sizeof(fw_ddb_entry->iscsi_name)); 3735 3736 if (sess->targetalias) 3737 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3738 sizeof(fw_ddb_entry->iscsi_alias)); 3739 3740 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3741 3742 return rc; 3743 } 3744 3745 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3746 struct iscsi_session *sess, 3747 struct dev_db_entry *fw_ddb_entry) 3748 { 3749 unsigned long options = 0; 3750 uint16_t ddb_link; 3751 uint16_t disc_parent; 3752 char ip_addr[DDB_IPADDR_LEN]; 3753 3754 options = le16_to_cpu(fw_ddb_entry->options); 3755 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3756 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3757 &options); 3758 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3759 3760 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3761 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3762 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3763 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3764 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3765 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3766 &options); 3767 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3768 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3769 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3770 &options); 3771 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3772 sess->discovery_auth_optional = 3773 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3774 if (test_bit(ISCSIOPT_ERL1, &options)) 3775 sess->erl |= BIT_1; 3776 if (test_bit(ISCSIOPT_ERL0, &options)) 3777 sess->erl |= BIT_0; 3778 3779 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3780 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3781 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3782 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3783 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3784 conn->tcp_timer_scale |= BIT_3; 3785 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3786 conn->tcp_timer_scale |= BIT_2; 3787 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3788 conn->tcp_timer_scale |= BIT_1; 3789 3790 conn->tcp_timer_scale >>= 1; 3791 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3792 3793 options = le16_to_cpu(fw_ddb_entry->ip_options); 3794 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3795 3796 conn->max_recv_dlength = BYTE_UNITS * 3797 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3798 conn->max_xmit_dlength = BYTE_UNITS * 3799 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3800 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3801 sess->first_burst = BYTE_UNITS * 3802 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3803 sess->max_burst = BYTE_UNITS * 3804 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3805 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3806 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3807 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3808 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3809 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3810 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3811 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3812 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3813 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3814 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3815 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3816 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3817 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3818 3819 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3820 if (ddb_link == DDB_ISNS) 3821 disc_parent = ISCSI_DISC_PARENT_ISNS; 3822 else if (ddb_link == DDB_NO_LINK) 3823 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3824 else if (ddb_link < MAX_DDB_ENTRIES) 3825 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3826 else 3827 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3828 3829 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3830 iscsi_get_discovery_parent_name(disc_parent), 0); 3831 3832 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3833 (char *)fw_ddb_entry->iscsi_alias, 0); 3834 3835 options = le16_to_cpu(fw_ddb_entry->options); 3836 if (options & DDB_OPT_IPV6_DEVICE) { 3837 memset(ip_addr, 0, sizeof(ip_addr)); 3838 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3839 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3840 (char *)ip_addr, 0); 3841 } 3842 } 3843 3844 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3845 struct dev_db_entry *fw_ddb_entry, 3846 struct iscsi_cls_session *cls_sess, 3847 struct iscsi_cls_conn *cls_conn) 3848 { 3849 int buflen = 0; 3850 struct iscsi_session *sess; 3851 struct ddb_entry *ddb_entry; 3852 struct ql4_chap_table chap_tbl; 3853 struct iscsi_conn *conn; 3854 char ip_addr[DDB_IPADDR_LEN]; 3855 uint16_t options = 0; 3856 3857 sess = cls_sess->dd_data; 3858 ddb_entry = sess->dd_data; 3859 conn = cls_conn->dd_data; 3860 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3861 3862 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3863 3864 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3865 3866 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3867 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3868 3869 memset(ip_addr, 0, sizeof(ip_addr)); 3870 options = le16_to_cpu(fw_ddb_entry->options); 3871 if (options & DDB_OPT_IPV6_DEVICE) { 3872 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3873 3874 memset(ip_addr, 0, sizeof(ip_addr)); 3875 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3876 } else { 3877 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3878 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3879 } 3880 3881 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3882 (char *)ip_addr, buflen); 3883 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3884 (char *)fw_ddb_entry->iscsi_name, buflen); 3885 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3886 (char *)ha->name_string, buflen); 3887 3888 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3889 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3890 chap_tbl.secret, 3891 ddb_entry->chap_tbl_idx)) { 3892 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3893 (char *)chap_tbl.name, 3894 strlen((char *)chap_tbl.name)); 3895 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3896 (char *)chap_tbl.secret, 3897 chap_tbl.secret_len); 3898 } 3899 } 3900 } 3901 3902 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3903 struct ddb_entry *ddb_entry) 3904 { 3905 struct iscsi_cls_session *cls_sess; 3906 struct iscsi_cls_conn *cls_conn; 3907 uint32_t ddb_state; 3908 dma_addr_t fw_ddb_entry_dma; 3909 struct dev_db_entry *fw_ddb_entry; 3910 3911 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3912 &fw_ddb_entry_dma, GFP_KERNEL); 3913 if (!fw_ddb_entry) { 3914 ql4_printk(KERN_ERR, ha, 3915 "%s: Unable to allocate dma buffer\n", __func__); 3916 goto exit_session_conn_fwddb_param; 3917 } 3918 3919 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3920 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3921 NULL, NULL, NULL) == QLA_ERROR) { 3922 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3923 "get_ddb_entry for fw_ddb_index %d\n", 3924 ha->host_no, __func__, 3925 ddb_entry->fw_ddb_index)); 3926 goto exit_session_conn_fwddb_param; 3927 } 3928 3929 cls_sess = ddb_entry->sess; 3930 3931 cls_conn = ddb_entry->conn; 3932 3933 /* Update params */ 3934 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3935 3936 exit_session_conn_fwddb_param: 3937 if (fw_ddb_entry) 3938 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3939 fw_ddb_entry, fw_ddb_entry_dma); 3940 } 3941 3942 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3943 struct ddb_entry *ddb_entry) 3944 { 3945 struct iscsi_cls_session *cls_sess; 3946 struct iscsi_cls_conn *cls_conn; 3947 struct iscsi_session *sess; 3948 struct iscsi_conn *conn; 3949 uint32_t ddb_state; 3950 dma_addr_t fw_ddb_entry_dma; 3951 struct dev_db_entry *fw_ddb_entry; 3952 3953 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3954 &fw_ddb_entry_dma, GFP_KERNEL); 3955 if (!fw_ddb_entry) { 3956 ql4_printk(KERN_ERR, ha, 3957 "%s: Unable to allocate dma buffer\n", __func__); 3958 goto exit_session_conn_param; 3959 } 3960 3961 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3962 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3963 NULL, NULL, NULL) == QLA_ERROR) { 3964 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3965 "get_ddb_entry for fw_ddb_index %d\n", 3966 ha->host_no, __func__, 3967 ddb_entry->fw_ddb_index)); 3968 goto exit_session_conn_param; 3969 } 3970 3971 cls_sess = ddb_entry->sess; 3972 sess = cls_sess->dd_data; 3973 3974 cls_conn = ddb_entry->conn; 3975 conn = cls_conn->dd_data; 3976 3977 /* Update timers after login */ 3978 ddb_entry->default_relogin_timeout = 3979 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3980 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3981 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3982 ddb_entry->default_time2wait = 3983 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3984 3985 /* Update params */ 3986 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3987 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3988 3989 memcpy(sess->initiatorname, ha->name_string, 3990 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 3991 3992 exit_session_conn_param: 3993 if (fw_ddb_entry) 3994 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3995 fw_ddb_entry, fw_ddb_entry_dma); 3996 } 3997 3998 /* 3999 * Timer routines 4000 */ 4001 static void qla4xxx_timer(struct timer_list *t); 4002 4003 static void qla4xxx_start_timer(struct scsi_qla_host *ha, 4004 unsigned long interval) 4005 { 4006 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 4007 __func__, ha->host->host_no)); 4008 timer_setup(&ha->timer, qla4xxx_timer, 0); 4009 ha->timer.expires = jiffies + interval * HZ; 4010 add_timer(&ha->timer); 4011 ha->timer_active = 1; 4012 } 4013 4014 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 4015 { 4016 del_timer_sync(&ha->timer); 4017 ha->timer_active = 0; 4018 } 4019 4020 /*** 4021 * qla4xxx_mark_device_missing - blocks the session 4022 * @cls_session: Pointer to the session to be blocked 4023 * @ddb_entry: Pointer to device database entry 4024 * 4025 * This routine marks a device missing and close connection. 4026 **/ 4027 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 4028 { 4029 iscsi_block_session(cls_session); 4030 } 4031 4032 /** 4033 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 4034 * @ha: Pointer to host adapter structure. 4035 * 4036 * This routine marks a device missing and resets the relogin retry count. 4037 **/ 4038 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 4039 { 4040 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 4041 } 4042 4043 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 4044 struct ddb_entry *ddb_entry, 4045 struct scsi_cmnd *cmd) 4046 { 4047 struct srb *srb; 4048 4049 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 4050 if (!srb) 4051 return srb; 4052 4053 kref_init(&srb->srb_ref); 4054 srb->ha = ha; 4055 srb->ddb = ddb_entry; 4056 srb->cmd = cmd; 4057 srb->flags = 0; 4058 qla4xxx_cmd_priv(cmd)->srb = srb; 4059 4060 return srb; 4061 } 4062 4063 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4064 { 4065 struct scsi_cmnd *cmd = srb->cmd; 4066 4067 if (srb->flags & SRB_DMA_VALID) { 4068 scsi_dma_unmap(cmd); 4069 srb->flags &= ~SRB_DMA_VALID; 4070 } 4071 qla4xxx_cmd_priv(cmd)->srb = NULL; 4072 } 4073 4074 void qla4xxx_srb_compl(struct kref *ref) 4075 { 4076 struct srb *srb = container_of(ref, struct srb, srb_ref); 4077 struct scsi_cmnd *cmd = srb->cmd; 4078 struct scsi_qla_host *ha = srb->ha; 4079 4080 qla4xxx_srb_free_dma(ha, srb); 4081 4082 mempool_free(srb, ha->srb_mempool); 4083 4084 scsi_done(cmd); 4085 } 4086 4087 /** 4088 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4089 * @host: scsi host 4090 * @cmd: Pointer to Linux's SCSI command structure 4091 * 4092 * Remarks: 4093 * This routine is invoked by Linux to send a SCSI command to the driver. 4094 * The mid-level driver tries to ensure that queuecommand never gets 4095 * invoked concurrently with itself or the interrupt handler (although 4096 * the interrupt handler may call this routine as part of request- 4097 * completion handling). Unfortunely, it sometimes calls the scheduler 4098 * in interrupt context which is a big NO! NO!. 4099 **/ 4100 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4101 { 4102 struct scsi_qla_host *ha = to_qla_host(host); 4103 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4104 struct iscsi_cls_session *sess = ddb_entry->sess; 4105 struct srb *srb; 4106 int rval; 4107 4108 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4109 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4110 cmd->result = DID_NO_CONNECT << 16; 4111 else 4112 cmd->result = DID_REQUEUE << 16; 4113 goto qc_fail_command; 4114 } 4115 4116 if (!sess) { 4117 cmd->result = DID_IMM_RETRY << 16; 4118 goto qc_fail_command; 4119 } 4120 4121 rval = iscsi_session_chkready(sess); 4122 if (rval) { 4123 cmd->result = rval; 4124 goto qc_fail_command; 4125 } 4126 4127 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4128 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4129 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4130 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4131 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4132 !test_bit(AF_ONLINE, &ha->flags) || 4133 !test_bit(AF_LINK_UP, &ha->flags) || 4134 test_bit(AF_LOOPBACK, &ha->flags) || 4135 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4136 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4137 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4138 goto qc_host_busy; 4139 4140 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4141 if (!srb) 4142 goto qc_host_busy; 4143 4144 rval = qla4xxx_send_command_to_isp(ha, srb); 4145 if (rval != QLA_SUCCESS) 4146 goto qc_host_busy_free_sp; 4147 4148 return 0; 4149 4150 qc_host_busy_free_sp: 4151 qla4xxx_srb_free_dma(ha, srb); 4152 mempool_free(srb, ha->srb_mempool); 4153 4154 qc_host_busy: 4155 return SCSI_MLQUEUE_HOST_BUSY; 4156 4157 qc_fail_command: 4158 scsi_done(cmd); 4159 4160 return 0; 4161 } 4162 4163 /** 4164 * qla4xxx_mem_free - frees memory allocated to adapter 4165 * @ha: Pointer to host adapter structure. 4166 * 4167 * Frees memory previously allocated by qla4xxx_mem_alloc 4168 **/ 4169 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4170 { 4171 if (ha->queues) 4172 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4173 ha->queues_dma); 4174 4175 vfree(ha->fw_dump); 4176 4177 ha->queues_len = 0; 4178 ha->queues = NULL; 4179 ha->queues_dma = 0; 4180 ha->request_ring = NULL; 4181 ha->request_dma = 0; 4182 ha->response_ring = NULL; 4183 ha->response_dma = 0; 4184 ha->shadow_regs = NULL; 4185 ha->shadow_regs_dma = 0; 4186 ha->fw_dump = NULL; 4187 ha->fw_dump_size = 0; 4188 4189 /* Free srb pool. */ 4190 mempool_destroy(ha->srb_mempool); 4191 ha->srb_mempool = NULL; 4192 4193 dma_pool_destroy(ha->chap_dma_pool); 4194 4195 vfree(ha->chap_list); 4196 ha->chap_list = NULL; 4197 4198 dma_pool_destroy(ha->fw_ddb_dma_pool); 4199 4200 /* release io space registers */ 4201 if (is_qla8022(ha)) { 4202 if (ha->nx_pcibase) 4203 iounmap( 4204 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4205 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4206 if (ha->nx_pcibase) 4207 iounmap( 4208 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4209 } else if (ha->reg) { 4210 iounmap(ha->reg); 4211 } 4212 4213 vfree(ha->reset_tmplt.buff); 4214 4215 pci_release_regions(ha->pdev); 4216 } 4217 4218 /** 4219 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4220 * @ha: Pointer to host adapter structure 4221 * 4222 * Allocates DMA memory for request and response queues. Also allocates memory 4223 * for srbs. 4224 **/ 4225 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4226 { 4227 unsigned long align; 4228 4229 /* Allocate contiguous block of DMA memory for queues. */ 4230 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4231 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4232 sizeof(struct shadow_regs) + 4233 MEM_ALIGN_VALUE + 4234 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4235 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 4236 &ha->queues_dma, GFP_KERNEL); 4237 if (ha->queues == NULL) { 4238 ql4_printk(KERN_WARNING, ha, 4239 "Memory Allocation failed - queues.\n"); 4240 4241 goto mem_alloc_error_exit; 4242 } 4243 4244 /* 4245 * As per RISC alignment requirements -- the bus-address must be a 4246 * multiple of the request-ring size (in bytes). 4247 */ 4248 align = 0; 4249 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4250 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4251 (MEM_ALIGN_VALUE - 1)); 4252 4253 /* Update request and response queue pointers. */ 4254 ha->request_dma = ha->queues_dma + align; 4255 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4256 ha->response_dma = ha->queues_dma + align + 4257 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4258 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4259 (REQUEST_QUEUE_DEPTH * 4260 QUEUE_SIZE)); 4261 ha->shadow_regs_dma = ha->queues_dma + align + 4262 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4263 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4264 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4265 (REQUEST_QUEUE_DEPTH * 4266 QUEUE_SIZE) + 4267 (RESPONSE_QUEUE_DEPTH * 4268 QUEUE_SIZE)); 4269 4270 /* Allocate memory for srb pool. */ 4271 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4272 mempool_free_slab, srb_cachep); 4273 if (ha->srb_mempool == NULL) { 4274 ql4_printk(KERN_WARNING, ha, 4275 "Memory Allocation failed - SRB Pool.\n"); 4276 4277 goto mem_alloc_error_exit; 4278 } 4279 4280 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4281 CHAP_DMA_BLOCK_SIZE, 8, 0); 4282 4283 if (ha->chap_dma_pool == NULL) { 4284 ql4_printk(KERN_WARNING, ha, 4285 "%s: chap_dma_pool allocation failed..\n", __func__); 4286 goto mem_alloc_error_exit; 4287 } 4288 4289 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4290 DDB_DMA_BLOCK_SIZE, 8, 0); 4291 4292 if (ha->fw_ddb_dma_pool == NULL) { 4293 ql4_printk(KERN_WARNING, ha, 4294 "%s: fw_ddb_dma_pool allocation failed..\n", 4295 __func__); 4296 goto mem_alloc_error_exit; 4297 } 4298 4299 return QLA_SUCCESS; 4300 4301 mem_alloc_error_exit: 4302 return QLA_ERROR; 4303 } 4304 4305 /** 4306 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4307 * @ha: adapter block pointer. 4308 * 4309 * Note: The caller should not hold the idc lock. 4310 **/ 4311 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4312 { 4313 uint32_t temp, temp_state, temp_val; 4314 int status = QLA_SUCCESS; 4315 4316 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4317 4318 temp_state = qla82xx_get_temp_state(temp); 4319 temp_val = qla82xx_get_temp_val(temp); 4320 4321 if (temp_state == QLA82XX_TEMP_PANIC) { 4322 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4323 " exceeds maximum allowed. Hardware has been shut" 4324 " down.\n", temp_val); 4325 status = QLA_ERROR; 4326 } else if (temp_state == QLA82XX_TEMP_WARN) { 4327 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4328 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4329 " degrees C exceeds operating range." 4330 " Immediate action needed.\n", temp_val); 4331 } else { 4332 if (ha->temperature == QLA82XX_TEMP_WARN) 4333 ql4_printk(KERN_INFO, ha, "Device temperature is" 4334 " now %d degrees C in normal range.\n", 4335 temp_val); 4336 } 4337 ha->temperature = temp_state; 4338 return status; 4339 } 4340 4341 /** 4342 * qla4_8xxx_check_fw_alive - Check firmware health 4343 * @ha: Pointer to host adapter structure. 4344 * 4345 * Context: Interrupt 4346 **/ 4347 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4348 { 4349 uint32_t fw_heartbeat_counter; 4350 int status = QLA_SUCCESS; 4351 4352 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4353 QLA8XXX_PEG_ALIVE_COUNTER); 4354 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4355 if (fw_heartbeat_counter == 0xffffffff) { 4356 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4357 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4358 ha->host_no, __func__)); 4359 return status; 4360 } 4361 4362 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4363 ha->seconds_since_last_heartbeat++; 4364 /* FW not alive after 2 seconds */ 4365 if (ha->seconds_since_last_heartbeat == 2) { 4366 ha->seconds_since_last_heartbeat = 0; 4367 qla4_8xxx_dump_peg_reg(ha); 4368 status = QLA_ERROR; 4369 } 4370 } else 4371 ha->seconds_since_last_heartbeat = 0; 4372 4373 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4374 return status; 4375 } 4376 4377 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4378 { 4379 uint32_t halt_status; 4380 int halt_status_unrecoverable = 0; 4381 4382 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4383 4384 if (is_qla8022(ha)) { 4385 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4386 __func__); 4387 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4388 CRB_NIU_XG_PAUSE_CTL_P0 | 4389 CRB_NIU_XG_PAUSE_CTL_P1); 4390 4391 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4392 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4393 __func__); 4394 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4395 halt_status_unrecoverable = 1; 4396 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4397 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4398 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4399 __func__); 4400 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4401 halt_status_unrecoverable = 1; 4402 } 4403 4404 /* 4405 * Since we cannot change dev_state in interrupt context, 4406 * set appropriate DPC flag then wakeup DPC 4407 */ 4408 if (halt_status_unrecoverable) { 4409 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4410 } else { 4411 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4412 __func__); 4413 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4414 } 4415 qla4xxx_mailbox_premature_completion(ha); 4416 qla4xxx_wake_dpc(ha); 4417 } 4418 4419 /** 4420 * qla4_8xxx_watchdog - Poll dev state 4421 * @ha: Pointer to host adapter structure. 4422 * 4423 * Context: Interrupt 4424 **/ 4425 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4426 { 4427 uint32_t dev_state; 4428 uint32_t idc_ctrl; 4429 4430 if (is_qla8032(ha) && 4431 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4432 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4433 __func__, ha->func_num); 4434 4435 /* don't poll if reset is going on */ 4436 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4437 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4438 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4439 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4440 4441 if (qla4_8xxx_check_temp(ha)) { 4442 if (is_qla8022(ha)) { 4443 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4444 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4445 CRB_NIU_XG_PAUSE_CTL_P0 | 4446 CRB_NIU_XG_PAUSE_CTL_P1); 4447 } 4448 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4449 qla4xxx_wake_dpc(ha); 4450 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4451 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4452 4453 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4454 __func__); 4455 4456 if (is_qla8032(ha) || is_qla8042(ha)) { 4457 idc_ctrl = qla4_83xx_rd_reg(ha, 4458 QLA83XX_IDC_DRV_CTRL); 4459 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4460 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4461 __func__); 4462 qla4xxx_mailbox_premature_completion( 4463 ha); 4464 } 4465 } 4466 4467 if ((is_qla8032(ha) || is_qla8042(ha)) || 4468 (is_qla8022(ha) && !ql4xdontresethba)) { 4469 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4470 qla4xxx_wake_dpc(ha); 4471 } 4472 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4473 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4474 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4475 __func__); 4476 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4477 qla4xxx_wake_dpc(ha); 4478 } else { 4479 /* Check firmware health */ 4480 if (qla4_8xxx_check_fw_alive(ha)) 4481 qla4_8xxx_process_fw_error(ha); 4482 } 4483 } 4484 } 4485 4486 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4487 { 4488 struct iscsi_session *sess; 4489 struct ddb_entry *ddb_entry; 4490 struct scsi_qla_host *ha; 4491 4492 sess = cls_sess->dd_data; 4493 ddb_entry = sess->dd_data; 4494 ha = ddb_entry->ha; 4495 4496 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4497 return; 4498 4499 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4500 !iscsi_is_session_online(cls_sess)) { 4501 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4502 INVALID_ENTRY) { 4503 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4504 0) { 4505 atomic_set(&ddb_entry->retry_relogin_timer, 4506 INVALID_ENTRY); 4507 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4508 set_bit(DF_RELOGIN, &ddb_entry->flags); 4509 DEBUG2(ql4_printk(KERN_INFO, ha, 4510 "%s: index [%d] login device\n", 4511 __func__, ddb_entry->fw_ddb_index)); 4512 } else 4513 atomic_dec(&ddb_entry->retry_relogin_timer); 4514 } 4515 } 4516 4517 /* Wait for relogin to timeout */ 4518 if (atomic_read(&ddb_entry->relogin_timer) && 4519 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4520 /* 4521 * If the relogin times out and the device is 4522 * still NOT ONLINE then try and relogin again. 4523 */ 4524 if (!iscsi_is_session_online(cls_sess)) { 4525 /* Reset retry relogin timer */ 4526 atomic_inc(&ddb_entry->relogin_retry_count); 4527 DEBUG2(ql4_printk(KERN_INFO, ha, 4528 "%s: index[%d] relogin timed out-retrying" 4529 " relogin (%d), retry (%d)\n", __func__, 4530 ddb_entry->fw_ddb_index, 4531 atomic_read(&ddb_entry->relogin_retry_count), 4532 ddb_entry->default_time2wait + 4)); 4533 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4534 atomic_set(&ddb_entry->retry_relogin_timer, 4535 ddb_entry->default_time2wait + 4); 4536 } 4537 } 4538 } 4539 4540 /** 4541 * qla4xxx_timer - checks every second for work to do. 4542 * @t: Context to obtain pointer to host adapter structure. 4543 **/ 4544 static void qla4xxx_timer(struct timer_list *t) 4545 { 4546 struct scsi_qla_host *ha = from_timer(ha, t, timer); 4547 int start_dpc = 0; 4548 uint16_t w; 4549 4550 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4551 4552 /* If we are in the middle of AER/EEH processing 4553 * skip any processing and reschedule the timer 4554 */ 4555 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4556 mod_timer(&ha->timer, jiffies + HZ); 4557 return; 4558 } 4559 4560 /* Hardware read to trigger an EEH error during mailbox waits. */ 4561 if (!pci_channel_offline(ha->pdev)) 4562 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4563 4564 if (is_qla80XX(ha)) 4565 qla4_8xxx_watchdog(ha); 4566 4567 if (is_qla40XX(ha)) { 4568 /* Check for heartbeat interval. */ 4569 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4570 ha->heartbeat_interval != 0) { 4571 ha->seconds_since_last_heartbeat++; 4572 if (ha->seconds_since_last_heartbeat > 4573 ha->heartbeat_interval + 2) 4574 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4575 } 4576 } 4577 4578 /* Process any deferred work. */ 4579 if (!list_empty(&ha->work_list)) 4580 start_dpc++; 4581 4582 /* Wakeup the dpc routine for this adapter, if needed. */ 4583 if (start_dpc || 4584 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4585 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4586 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4587 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4588 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4589 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4590 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4591 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4592 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4593 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) || 4594 test_bit(DPC_AEN, &ha->dpc_flags)) { 4595 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4596 " - dpc flags = 0x%lx\n", 4597 ha->host_no, __func__, ha->dpc_flags)); 4598 qla4xxx_wake_dpc(ha); 4599 } 4600 4601 /* Reschedule timer thread to call us back in one second */ 4602 mod_timer(&ha->timer, jiffies + HZ); 4603 4604 DEBUG2(ha->seconds_since_last_intr++); 4605 } 4606 4607 /** 4608 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4609 * @ha: Pointer to host adapter structure. 4610 * 4611 * This routine stalls the driver until all outstanding commands are returned. 4612 * Caller must release the Hardware Lock prior to calling this routine. 4613 **/ 4614 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4615 { 4616 uint32_t index = 0; 4617 unsigned long flags; 4618 struct scsi_cmnd *cmd; 4619 unsigned long wtime; 4620 uint32_t wtmo; 4621 4622 if (is_qla40XX(ha)) 4623 wtmo = WAIT_CMD_TOV; 4624 else 4625 wtmo = ha->nx_reset_timeout / 2; 4626 4627 wtime = jiffies + (wtmo * HZ); 4628 4629 DEBUG2(ql4_printk(KERN_INFO, ha, 4630 "Wait up to %u seconds for cmds to complete\n", 4631 wtmo)); 4632 4633 while (!time_after_eq(jiffies, wtime)) { 4634 spin_lock_irqsave(&ha->hardware_lock, flags); 4635 /* Find a command that hasn't completed. */ 4636 for (index = 0; index < ha->host->can_queue; index++) { 4637 cmd = scsi_host_find_tag(ha->host, index); 4638 /* 4639 * We cannot just check if the index is valid, 4640 * becase if we are run from the scsi eh, then 4641 * the scsi/block layer is going to prevent 4642 * the tag from being released. 4643 */ 4644 if (cmd != NULL && qla4xxx_cmd_priv(cmd)->srb) 4645 break; 4646 } 4647 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4648 4649 /* If No Commands are pending, wait is complete */ 4650 if (index == ha->host->can_queue) 4651 return QLA_SUCCESS; 4652 4653 msleep(1000); 4654 } 4655 /* If we timed out on waiting for commands to come back 4656 * return ERROR. */ 4657 return QLA_ERROR; 4658 } 4659 4660 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4661 { 4662 uint32_t ctrl_status; 4663 unsigned long flags = 0; 4664 4665 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4666 4667 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4668 return QLA_ERROR; 4669 4670 spin_lock_irqsave(&ha->hardware_lock, flags); 4671 4672 /* 4673 * If the SCSI Reset Interrupt bit is set, clear it. 4674 * Otherwise, the Soft Reset won't work. 4675 */ 4676 ctrl_status = readw(&ha->reg->ctrl_status); 4677 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4678 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4679 4680 /* Issue Soft Reset */ 4681 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4682 readl(&ha->reg->ctrl_status); 4683 4684 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4685 return QLA_SUCCESS; 4686 } 4687 4688 /** 4689 * qla4xxx_soft_reset - performs soft reset. 4690 * @ha: Pointer to host adapter structure. 4691 **/ 4692 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4693 { 4694 uint32_t max_wait_time; 4695 unsigned long flags = 0; 4696 int status; 4697 uint32_t ctrl_status; 4698 4699 status = qla4xxx_hw_reset(ha); 4700 if (status != QLA_SUCCESS) 4701 return status; 4702 4703 status = QLA_ERROR; 4704 /* Wait until the Network Reset Intr bit is cleared */ 4705 max_wait_time = RESET_INTR_TOV; 4706 do { 4707 spin_lock_irqsave(&ha->hardware_lock, flags); 4708 ctrl_status = readw(&ha->reg->ctrl_status); 4709 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4710 4711 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4712 break; 4713 4714 msleep(1000); 4715 } while ((--max_wait_time)); 4716 4717 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4718 DEBUG2(printk(KERN_WARNING 4719 "scsi%ld: Network Reset Intr not cleared by " 4720 "Network function, clearing it now!\n", 4721 ha->host_no)); 4722 spin_lock_irqsave(&ha->hardware_lock, flags); 4723 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4724 readl(&ha->reg->ctrl_status); 4725 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4726 } 4727 4728 /* Wait until the firmware tells us the Soft Reset is done */ 4729 max_wait_time = SOFT_RESET_TOV; 4730 do { 4731 spin_lock_irqsave(&ha->hardware_lock, flags); 4732 ctrl_status = readw(&ha->reg->ctrl_status); 4733 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4734 4735 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4736 status = QLA_SUCCESS; 4737 break; 4738 } 4739 4740 msleep(1000); 4741 } while ((--max_wait_time)); 4742 4743 /* 4744 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4745 * after the soft reset has taken place. 4746 */ 4747 spin_lock_irqsave(&ha->hardware_lock, flags); 4748 ctrl_status = readw(&ha->reg->ctrl_status); 4749 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4750 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4751 readl(&ha->reg->ctrl_status); 4752 } 4753 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4754 4755 /* If soft reset fails then most probably the bios on other 4756 * function is also enabled. 4757 * Since the initialization is sequential the other fn 4758 * wont be able to acknowledge the soft reset. 4759 * Issue a force soft reset to workaround this scenario. 4760 */ 4761 if (max_wait_time == 0) { 4762 /* Issue Force Soft Reset */ 4763 spin_lock_irqsave(&ha->hardware_lock, flags); 4764 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4765 readl(&ha->reg->ctrl_status); 4766 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4767 /* Wait until the firmware tells us the Soft Reset is done */ 4768 max_wait_time = SOFT_RESET_TOV; 4769 do { 4770 spin_lock_irqsave(&ha->hardware_lock, flags); 4771 ctrl_status = readw(&ha->reg->ctrl_status); 4772 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4773 4774 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4775 status = QLA_SUCCESS; 4776 break; 4777 } 4778 4779 msleep(1000); 4780 } while ((--max_wait_time)); 4781 } 4782 4783 return status; 4784 } 4785 4786 /** 4787 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4788 * @ha: Pointer to host adapter structure. 4789 * @res: returned scsi status 4790 * 4791 * This routine is called just prior to a HARD RESET to return all 4792 * outstanding commands back to the Operating System. 4793 * Caller should make sure that the following locks are released 4794 * before this calling routine: Hardware lock, and io_request_lock. 4795 **/ 4796 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4797 { 4798 struct srb *srb; 4799 int i; 4800 unsigned long flags; 4801 4802 spin_lock_irqsave(&ha->hardware_lock, flags); 4803 for (i = 0; i < ha->host->can_queue; i++) { 4804 srb = qla4xxx_del_from_active_array(ha, i); 4805 if (srb != NULL) { 4806 srb->cmd->result = res; 4807 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4808 } 4809 } 4810 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4811 } 4812 4813 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4814 { 4815 clear_bit(AF_ONLINE, &ha->flags); 4816 4817 /* Disable the board */ 4818 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4819 4820 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4821 qla4xxx_mark_all_devices_missing(ha); 4822 clear_bit(AF_INIT_DONE, &ha->flags); 4823 } 4824 4825 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4826 { 4827 struct iscsi_session *sess; 4828 struct ddb_entry *ddb_entry; 4829 4830 sess = cls_session->dd_data; 4831 ddb_entry = sess->dd_data; 4832 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4833 4834 if (ddb_entry->ddb_type == FLASH_DDB) 4835 iscsi_block_session(ddb_entry->sess); 4836 else 4837 iscsi_session_failure(cls_session->dd_data, 4838 ISCSI_ERR_CONN_FAILED); 4839 } 4840 4841 /** 4842 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4843 * @ha: Pointer to host adapter structure. 4844 **/ 4845 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4846 { 4847 int status = QLA_ERROR; 4848 uint8_t reset_chip = 0; 4849 uint32_t dev_state; 4850 unsigned long wait; 4851 4852 /* Stall incoming I/O until we are done */ 4853 scsi_block_requests(ha->host); 4854 clear_bit(AF_ONLINE, &ha->flags); 4855 clear_bit(AF_LINK_UP, &ha->flags); 4856 4857 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4858 4859 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4860 4861 if ((is_qla8032(ha) || is_qla8042(ha)) && 4862 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4863 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4864 __func__); 4865 /* disable pause frame for ISP83xx */ 4866 qla4_83xx_disable_pause(ha); 4867 } 4868 4869 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4870 4871 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4872 reset_chip = 1; 4873 4874 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4875 * do not reset adapter, jump to initialize_adapter */ 4876 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4877 status = QLA_SUCCESS; 4878 goto recover_ha_init_adapter; 4879 } 4880 4881 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4882 * from eh_host_reset or ioctl module */ 4883 if (is_qla80XX(ha) && !reset_chip && 4884 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4885 4886 DEBUG2(ql4_printk(KERN_INFO, ha, 4887 "scsi%ld: %s - Performing stop_firmware...\n", 4888 ha->host_no, __func__)); 4889 status = ha->isp_ops->reset_firmware(ha); 4890 if (status == QLA_SUCCESS) { 4891 ha->isp_ops->disable_intrs(ha); 4892 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4893 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4894 } else { 4895 /* If the stop_firmware fails then 4896 * reset the entire chip */ 4897 reset_chip = 1; 4898 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4899 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4900 } 4901 } 4902 4903 /* Issue full chip reset if recovering from a catastrophic error, 4904 * or if stop_firmware fails for ISP-8xxx. 4905 * This is the default case for ISP-4xxx */ 4906 if (is_qla40XX(ha) || reset_chip) { 4907 if (is_qla40XX(ha)) 4908 goto chip_reset; 4909 4910 /* Check if 8XXX firmware is alive or not 4911 * We may have arrived here from NEED_RESET 4912 * detection only */ 4913 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4914 goto chip_reset; 4915 4916 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4917 while (time_before(jiffies, wait)) { 4918 if (qla4_8xxx_check_fw_alive(ha)) { 4919 qla4xxx_mailbox_premature_completion(ha); 4920 break; 4921 } 4922 4923 set_current_state(TASK_UNINTERRUPTIBLE); 4924 schedule_timeout(HZ); 4925 } 4926 chip_reset: 4927 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4928 qla4xxx_cmd_wait(ha); 4929 4930 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4931 DEBUG2(ql4_printk(KERN_INFO, ha, 4932 "scsi%ld: %s - Performing chip reset..\n", 4933 ha->host_no, __func__)); 4934 status = ha->isp_ops->reset_chip(ha); 4935 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4936 } 4937 4938 /* Flush any pending ddb changed AENs */ 4939 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4940 4941 recover_ha_init_adapter: 4942 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4943 if (status == QLA_SUCCESS) { 4944 /* For ISP-4xxx, force function 1 to always initialize 4945 * before function 3 to prevent both funcions from 4946 * stepping on top of the other */ 4947 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4948 ssleep(6); 4949 4950 /* NOTE: AF_ONLINE flag set upon successful completion of 4951 * qla4xxx_initialize_adapter */ 4952 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4953 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4954 status = qla4_8xxx_check_init_adapter_retry(ha); 4955 if (status == QLA_ERROR) { 4956 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4957 ha->host_no, __func__); 4958 qla4xxx_dead_adapter_cleanup(ha); 4959 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4960 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4961 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4962 &ha->dpc_flags); 4963 goto exit_recover; 4964 } 4965 } 4966 } 4967 4968 /* Retry failed adapter initialization, if necessary 4969 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4970 * case to prevent ping-pong resets between functions */ 4971 if (!test_bit(AF_ONLINE, &ha->flags) && 4972 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4973 /* Adapter initialization failed, see if we can retry 4974 * resetting the ha. 4975 * Since we don't want to block the DPC for too long 4976 * with multiple resets in the same thread, 4977 * utilize DPC to retry */ 4978 if (is_qla80XX(ha)) { 4979 ha->isp_ops->idc_lock(ha); 4980 dev_state = qla4_8xxx_rd_direct(ha, 4981 QLA8XXX_CRB_DEV_STATE); 4982 ha->isp_ops->idc_unlock(ha); 4983 if (dev_state == QLA8XXX_DEV_FAILED) { 4984 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4985 "recover adapter. H/W is in Failed " 4986 "state\n", __func__); 4987 qla4xxx_dead_adapter_cleanup(ha); 4988 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4989 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4990 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4991 &ha->dpc_flags); 4992 status = QLA_ERROR; 4993 4994 goto exit_recover; 4995 } 4996 } 4997 4998 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 4999 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 5000 DEBUG2(printk("scsi%ld: recover adapter - retrying " 5001 "(%d) more times\n", ha->host_no, 5002 ha->retry_reset_ha_cnt)); 5003 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5004 status = QLA_ERROR; 5005 } else { 5006 if (ha->retry_reset_ha_cnt > 0) { 5007 /* Schedule another Reset HA--DPC will retry */ 5008 ha->retry_reset_ha_cnt--; 5009 DEBUG2(printk("scsi%ld: recover adapter - " 5010 "retry remaining %d\n", 5011 ha->host_no, 5012 ha->retry_reset_ha_cnt)); 5013 status = QLA_ERROR; 5014 } 5015 5016 if (ha->retry_reset_ha_cnt == 0) { 5017 /* Recover adapter retries have been exhausted. 5018 * Adapter DEAD */ 5019 DEBUG2(printk("scsi%ld: recover adapter " 5020 "failed - board disabled\n", 5021 ha->host_no)); 5022 qla4xxx_dead_adapter_cleanup(ha); 5023 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5024 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5025 clear_bit(DPC_RESET_HA_FW_CONTEXT, 5026 &ha->dpc_flags); 5027 status = QLA_ERROR; 5028 } 5029 } 5030 } else { 5031 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5032 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5033 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5034 } 5035 5036 exit_recover: 5037 ha->adapter_error_count++; 5038 5039 if (test_bit(AF_ONLINE, &ha->flags)) 5040 ha->isp_ops->enable_intrs(ha); 5041 5042 scsi_unblock_requests(ha->host); 5043 5044 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 5045 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 5046 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 5047 5048 return status; 5049 } 5050 5051 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 5052 { 5053 struct iscsi_session *sess; 5054 struct ddb_entry *ddb_entry; 5055 struct scsi_qla_host *ha; 5056 5057 sess = cls_session->dd_data; 5058 ddb_entry = sess->dd_data; 5059 ha = ddb_entry->ha; 5060 if (!iscsi_is_session_online(cls_session)) { 5061 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5062 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5063 " unblock session\n", ha->host_no, __func__, 5064 ddb_entry->fw_ddb_index); 5065 iscsi_unblock_session(ddb_entry->sess); 5066 } else { 5067 /* Trigger relogin */ 5068 if (ddb_entry->ddb_type == FLASH_DDB) { 5069 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5070 test_bit(DF_DISABLE_RELOGIN, 5071 &ddb_entry->flags))) 5072 qla4xxx_arm_relogin_timer(ddb_entry); 5073 } else 5074 iscsi_session_failure(cls_session->dd_data, 5075 ISCSI_ERR_CONN_FAILED); 5076 } 5077 } 5078 } 5079 5080 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5081 { 5082 struct iscsi_session *sess; 5083 struct ddb_entry *ddb_entry; 5084 struct scsi_qla_host *ha; 5085 5086 sess = cls_session->dd_data; 5087 ddb_entry = sess->dd_data; 5088 ha = ddb_entry->ha; 5089 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5090 " unblock session\n", ha->host_no, __func__, 5091 ddb_entry->fw_ddb_index); 5092 5093 iscsi_unblock_session(ddb_entry->sess); 5094 5095 /* Start scan target */ 5096 if (test_bit(AF_ONLINE, &ha->flags)) { 5097 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5098 " start scan\n", ha->host_no, __func__, 5099 ddb_entry->fw_ddb_index); 5100 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 5101 } 5102 return QLA_SUCCESS; 5103 } 5104 5105 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5106 { 5107 struct iscsi_session *sess; 5108 struct ddb_entry *ddb_entry; 5109 struct scsi_qla_host *ha; 5110 int status = QLA_SUCCESS; 5111 5112 sess = cls_session->dd_data; 5113 ddb_entry = sess->dd_data; 5114 ha = ddb_entry->ha; 5115 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5116 " unblock user space session\n", ha->host_no, __func__, 5117 ddb_entry->fw_ddb_index); 5118 5119 if (!iscsi_is_session_online(cls_session)) { 5120 iscsi_conn_start(ddb_entry->conn); 5121 iscsi_conn_login_event(ddb_entry->conn, 5122 ISCSI_CONN_STATE_LOGGED_IN); 5123 } else { 5124 ql4_printk(KERN_INFO, ha, 5125 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5126 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5127 cls_session->sid); 5128 status = QLA_ERROR; 5129 } 5130 5131 return status; 5132 } 5133 5134 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5135 { 5136 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5137 } 5138 5139 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5140 { 5141 uint16_t relogin_timer; 5142 struct iscsi_session *sess; 5143 struct ddb_entry *ddb_entry; 5144 struct scsi_qla_host *ha; 5145 5146 sess = cls_sess->dd_data; 5147 ddb_entry = sess->dd_data; 5148 ha = ddb_entry->ha; 5149 5150 relogin_timer = max(ddb_entry->default_relogin_timeout, 5151 (uint16_t)RELOGIN_TOV); 5152 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5153 5154 DEBUG2(ql4_printk(KERN_INFO, ha, 5155 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5156 ddb_entry->fw_ddb_index, relogin_timer)); 5157 5158 qla4xxx_login_flash_ddb(cls_sess); 5159 } 5160 5161 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5162 { 5163 struct iscsi_session *sess; 5164 struct ddb_entry *ddb_entry; 5165 struct scsi_qla_host *ha; 5166 5167 sess = cls_sess->dd_data; 5168 ddb_entry = sess->dd_data; 5169 ha = ddb_entry->ha; 5170 5171 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5172 return; 5173 5174 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5175 return; 5176 5177 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5178 !iscsi_is_session_online(cls_sess)) { 5179 DEBUG2(ql4_printk(KERN_INFO, ha, 5180 "relogin issued\n")); 5181 qla4xxx_relogin_flash_ddb(cls_sess); 5182 } 5183 } 5184 5185 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5186 { 5187 if (ha->dpc_thread) 5188 queue_work(ha->dpc_thread, &ha->dpc_work); 5189 } 5190 5191 static struct qla4_work_evt * 5192 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5193 enum qla4_work_type type) 5194 { 5195 struct qla4_work_evt *e; 5196 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5197 5198 e = kzalloc(size, GFP_ATOMIC); 5199 if (!e) 5200 return NULL; 5201 5202 INIT_LIST_HEAD(&e->list); 5203 e->type = type; 5204 return e; 5205 } 5206 5207 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5208 struct qla4_work_evt *e) 5209 { 5210 unsigned long flags; 5211 5212 spin_lock_irqsave(&ha->work_lock, flags); 5213 list_add_tail(&e->list, &ha->work_list); 5214 spin_unlock_irqrestore(&ha->work_lock, flags); 5215 qla4xxx_wake_dpc(ha); 5216 } 5217 5218 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5219 enum iscsi_host_event_code aen_code, 5220 uint32_t data_size, uint8_t *data) 5221 { 5222 struct qla4_work_evt *e; 5223 5224 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5225 if (!e) 5226 return QLA_ERROR; 5227 5228 e->u.aen.code = aen_code; 5229 e->u.aen.data_size = data_size; 5230 memcpy(e->u.aen.data, data, data_size); 5231 5232 qla4xxx_post_work(ha, e); 5233 5234 return QLA_SUCCESS; 5235 } 5236 5237 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5238 uint32_t status, uint32_t pid, 5239 uint32_t data_size, uint8_t *data) 5240 { 5241 struct qla4_work_evt *e; 5242 5243 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5244 if (!e) 5245 return QLA_ERROR; 5246 5247 e->u.ping.status = status; 5248 e->u.ping.pid = pid; 5249 e->u.ping.data_size = data_size; 5250 memcpy(e->u.ping.data, data, data_size); 5251 5252 qla4xxx_post_work(ha, e); 5253 5254 return QLA_SUCCESS; 5255 } 5256 5257 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5258 { 5259 struct qla4_work_evt *e, *tmp; 5260 unsigned long flags; 5261 LIST_HEAD(work); 5262 5263 spin_lock_irqsave(&ha->work_lock, flags); 5264 list_splice_init(&ha->work_list, &work); 5265 spin_unlock_irqrestore(&ha->work_lock, flags); 5266 5267 list_for_each_entry_safe(e, tmp, &work, list) { 5268 list_del_init(&e->list); 5269 5270 switch (e->type) { 5271 case QLA4_EVENT_AEN: 5272 iscsi_post_host_event(ha->host_no, 5273 &qla4xxx_iscsi_transport, 5274 e->u.aen.code, 5275 e->u.aen.data_size, 5276 e->u.aen.data); 5277 break; 5278 case QLA4_EVENT_PING_STATUS: 5279 iscsi_ping_comp_event(ha->host_no, 5280 &qla4xxx_iscsi_transport, 5281 e->u.ping.status, 5282 e->u.ping.pid, 5283 e->u.ping.data_size, 5284 e->u.ping.data); 5285 break; 5286 default: 5287 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5288 "supported", e->type); 5289 } 5290 kfree(e); 5291 } 5292 } 5293 5294 /** 5295 * qla4xxx_do_dpc - dpc routine 5296 * @work: Context to obtain pointer to host adapter structure. 5297 * 5298 * This routine is a task that is schedule by the interrupt handler 5299 * to perform the background processing for interrupts. We put it 5300 * on a task queue that is consumed whenever the scheduler runs; that's 5301 * so you can do anything (i.e. put the process to sleep etc). In fact, 5302 * the mid-level tries to sleep when it reaches the driver threshold 5303 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5304 **/ 5305 static void qla4xxx_do_dpc(struct work_struct *work) 5306 { 5307 struct scsi_qla_host *ha = 5308 container_of(work, struct scsi_qla_host, dpc_work); 5309 int status = QLA_ERROR; 5310 5311 DEBUG2(ql4_printk(KERN_INFO, ha, 5312 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5313 ha->host_no, __func__, ha->flags, ha->dpc_flags)); 5314 5315 /* Initialization not yet finished. Don't do anything yet. */ 5316 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5317 return; 5318 5319 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5320 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5321 ha->host_no, __func__, ha->flags)); 5322 return; 5323 } 5324 5325 /* post events to application */ 5326 qla4xxx_do_work(ha); 5327 5328 if (is_qla80XX(ha)) { 5329 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5330 if (is_qla8032(ha) || is_qla8042(ha)) { 5331 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5332 __func__); 5333 /* disable pause frame for ISP83xx */ 5334 qla4_83xx_disable_pause(ha); 5335 } 5336 5337 ha->isp_ops->idc_lock(ha); 5338 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5339 QLA8XXX_DEV_FAILED); 5340 ha->isp_ops->idc_unlock(ha); 5341 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5342 qla4_8xxx_device_state_handler(ha); 5343 } 5344 5345 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5346 if (is_qla8042(ha)) { 5347 if (ha->idc_info.info2 & 5348 ENABLE_INTERNAL_LOOPBACK) { 5349 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5350 __func__); 5351 status = qla4_84xx_config_acb(ha, 5352 ACB_CONFIG_DISABLE); 5353 if (status != QLA_SUCCESS) { 5354 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5355 __func__); 5356 } 5357 } 5358 } 5359 qla4_83xx_post_idc_ack(ha); 5360 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5361 } 5362 5363 if (is_qla8042(ha) && 5364 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5365 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5366 __func__); 5367 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5368 QLA_SUCCESS) { 5369 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5370 __func__); 5371 } 5372 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5373 } 5374 5375 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5376 qla4_8xxx_need_qsnt_handler(ha); 5377 } 5378 } 5379 5380 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5381 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5382 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5383 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5384 if ((is_qla8022(ha) && ql4xdontresethba) || 5385 ((is_qla8032(ha) || is_qla8042(ha)) && 5386 qla4_83xx_idc_dontreset(ha))) { 5387 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5388 ha->host_no, __func__)); 5389 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5390 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5391 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5392 goto dpc_post_reset_ha; 5393 } 5394 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5395 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5396 qla4xxx_recover_adapter(ha); 5397 5398 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5399 uint8_t wait_time = RESET_INTR_TOV; 5400 5401 while ((readw(&ha->reg->ctrl_status) & 5402 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5403 if (--wait_time == 0) 5404 break; 5405 msleep(1000); 5406 } 5407 if (wait_time == 0) 5408 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5409 "bit not cleared-- resetting\n", 5410 ha->host_no, __func__)); 5411 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5412 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5413 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5414 status = qla4xxx_recover_adapter(ha); 5415 } 5416 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5417 if (status == QLA_SUCCESS) 5418 ha->isp_ops->enable_intrs(ha); 5419 } 5420 } 5421 5422 dpc_post_reset_ha: 5423 /* ---- process AEN? --- */ 5424 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5425 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5426 5427 /* ---- Get DHCP IP Address? --- */ 5428 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5429 qla4xxx_get_dhcp_ip_address(ha); 5430 5431 /* ---- relogin device? --- */ 5432 if (adapter_up(ha) && 5433 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5434 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5435 } 5436 5437 /* ---- link change? --- */ 5438 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5439 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5440 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5441 /* ---- link down? --- */ 5442 qla4xxx_mark_all_devices_missing(ha); 5443 } else { 5444 /* ---- link up? --- * 5445 * F/W will auto login to all devices ONLY ONCE after 5446 * link up during driver initialization and runtime 5447 * fatal error recovery. Therefore, the driver must 5448 * manually relogin to devices when recovering from 5449 * connection failures, logouts, expired KATO, etc. */ 5450 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5451 qla4xxx_build_ddb_list(ha, ha->is_reset); 5452 iscsi_host_for_each_session(ha->host, 5453 qla4xxx_login_flash_ddb); 5454 } else 5455 qla4xxx_relogin_all_devices(ha); 5456 } 5457 } 5458 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) { 5459 if (qla4xxx_sysfs_ddb_export(ha)) 5460 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n", 5461 __func__); 5462 } 5463 } 5464 5465 /** 5466 * qla4xxx_free_adapter - release the adapter 5467 * @ha: pointer to adapter structure 5468 **/ 5469 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5470 { 5471 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5472 5473 /* Turn-off interrupts on the card. */ 5474 ha->isp_ops->disable_intrs(ha); 5475 5476 if (is_qla40XX(ha)) { 5477 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5478 &ha->reg->ctrl_status); 5479 readl(&ha->reg->ctrl_status); 5480 } else if (is_qla8022(ha)) { 5481 writel(0, &ha->qla4_82xx_reg->host_int); 5482 readl(&ha->qla4_82xx_reg->host_int); 5483 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5484 writel(0, &ha->qla4_83xx_reg->risc_intr); 5485 readl(&ha->qla4_83xx_reg->risc_intr); 5486 } 5487 5488 /* Remove timer thread, if present */ 5489 if (ha->timer_active) 5490 qla4xxx_stop_timer(ha); 5491 5492 /* Kill the kernel thread for this host */ 5493 if (ha->dpc_thread) 5494 destroy_workqueue(ha->dpc_thread); 5495 5496 /* Kill the kernel thread for this host */ 5497 if (ha->task_wq) 5498 destroy_workqueue(ha->task_wq); 5499 5500 /* Put firmware in known state */ 5501 ha->isp_ops->reset_firmware(ha); 5502 5503 if (is_qla80XX(ha)) { 5504 ha->isp_ops->idc_lock(ha); 5505 qla4_8xxx_clear_drv_active(ha); 5506 ha->isp_ops->idc_unlock(ha); 5507 } 5508 5509 /* Detach interrupts */ 5510 qla4xxx_free_irqs(ha); 5511 5512 /* free extra memory */ 5513 qla4xxx_mem_free(ha); 5514 } 5515 5516 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5517 { 5518 int status = 0; 5519 unsigned long mem_base, mem_len; 5520 struct pci_dev *pdev = ha->pdev; 5521 5522 status = pci_request_regions(pdev, DRIVER_NAME); 5523 if (status) { 5524 printk(KERN_WARNING 5525 "scsi(%ld) Failed to reserve PIO regions (%s) " 5526 "status=%d\n", ha->host_no, pci_name(pdev), status); 5527 goto iospace_error_exit; 5528 } 5529 5530 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5531 __func__, pdev->revision)); 5532 ha->revision_id = pdev->revision; 5533 5534 /* remap phys address */ 5535 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5536 mem_len = pci_resource_len(pdev, 0); 5537 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5538 __func__, mem_base, mem_len)); 5539 5540 /* mapping of pcibase pointer */ 5541 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5542 if (!ha->nx_pcibase) { 5543 printk(KERN_ERR 5544 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5545 pci_release_regions(ha->pdev); 5546 goto iospace_error_exit; 5547 } 5548 5549 /* Mapping of IO base pointer, door bell read and write pointer */ 5550 5551 /* mapping of IO base pointer */ 5552 if (is_qla8022(ha)) { 5553 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5554 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5555 (ha->pdev->devfn << 11)); 5556 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5557 QLA82XX_CAM_RAM_DB2); 5558 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5559 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5560 ((uint8_t *)ha->nx_pcibase); 5561 } 5562 5563 return 0; 5564 iospace_error_exit: 5565 return -ENOMEM; 5566 } 5567 5568 /*** 5569 * qla4xxx_iospace_config - maps registers 5570 * @ha: pointer to adapter structure 5571 * 5572 * This routines maps HBA's registers from the pci address space 5573 * into the kernel virtual address space for memory mapped i/o. 5574 **/ 5575 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5576 { 5577 unsigned long pio, pio_len, pio_flags; 5578 unsigned long mmio, mmio_len, mmio_flags; 5579 5580 pio = pci_resource_start(ha->pdev, 0); 5581 pio_len = pci_resource_len(ha->pdev, 0); 5582 pio_flags = pci_resource_flags(ha->pdev, 0); 5583 if (pio_flags & IORESOURCE_IO) { 5584 if (pio_len < MIN_IOBASE_LEN) { 5585 ql4_printk(KERN_WARNING, ha, 5586 "Invalid PCI I/O region size\n"); 5587 pio = 0; 5588 } 5589 } else { 5590 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5591 pio = 0; 5592 } 5593 5594 /* Use MMIO operations for all accesses. */ 5595 mmio = pci_resource_start(ha->pdev, 1); 5596 mmio_len = pci_resource_len(ha->pdev, 1); 5597 mmio_flags = pci_resource_flags(ha->pdev, 1); 5598 5599 if (!(mmio_flags & IORESOURCE_MEM)) { 5600 ql4_printk(KERN_ERR, ha, 5601 "region #0 not an MMIO resource, aborting\n"); 5602 5603 goto iospace_error_exit; 5604 } 5605 5606 if (mmio_len < MIN_IOBASE_LEN) { 5607 ql4_printk(KERN_ERR, ha, 5608 "Invalid PCI mem region size, aborting\n"); 5609 goto iospace_error_exit; 5610 } 5611 5612 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5613 ql4_printk(KERN_WARNING, ha, 5614 "Failed to reserve PIO/MMIO regions\n"); 5615 5616 goto iospace_error_exit; 5617 } 5618 5619 ha->pio_address = pio; 5620 ha->pio_length = pio_len; 5621 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5622 if (!ha->reg) { 5623 ql4_printk(KERN_ERR, ha, 5624 "cannot remap MMIO, aborting\n"); 5625 5626 goto iospace_error_exit; 5627 } 5628 5629 return 0; 5630 5631 iospace_error_exit: 5632 return -ENOMEM; 5633 } 5634 5635 static struct isp_operations qla4xxx_isp_ops = { 5636 .iospace_config = qla4xxx_iospace_config, 5637 .pci_config = qla4xxx_pci_config, 5638 .disable_intrs = qla4xxx_disable_intrs, 5639 .enable_intrs = qla4xxx_enable_intrs, 5640 .start_firmware = qla4xxx_start_firmware, 5641 .intr_handler = qla4xxx_intr_handler, 5642 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5643 .reset_chip = qla4xxx_soft_reset, 5644 .reset_firmware = qla4xxx_hw_reset, 5645 .queue_iocb = qla4xxx_queue_iocb, 5646 .complete_iocb = qla4xxx_complete_iocb, 5647 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5648 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5649 .get_sys_info = qla4xxx_get_sys_info, 5650 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5651 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5652 }; 5653 5654 static struct isp_operations qla4_82xx_isp_ops = { 5655 .iospace_config = qla4_8xxx_iospace_config, 5656 .pci_config = qla4_8xxx_pci_config, 5657 .disable_intrs = qla4_82xx_disable_intrs, 5658 .enable_intrs = qla4_82xx_enable_intrs, 5659 .start_firmware = qla4_8xxx_load_risc, 5660 .restart_firmware = qla4_82xx_try_start_fw, 5661 .intr_handler = qla4_82xx_intr_handler, 5662 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5663 .need_reset = qla4_8xxx_need_reset, 5664 .reset_chip = qla4_82xx_isp_reset, 5665 .reset_firmware = qla4_8xxx_stop_firmware, 5666 .queue_iocb = qla4_82xx_queue_iocb, 5667 .complete_iocb = qla4_82xx_complete_iocb, 5668 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5669 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5670 .get_sys_info = qla4_8xxx_get_sys_info, 5671 .rd_reg_direct = qla4_82xx_rd_32, 5672 .wr_reg_direct = qla4_82xx_wr_32, 5673 .rd_reg_indirect = qla4_82xx_md_rd_32, 5674 .wr_reg_indirect = qla4_82xx_md_wr_32, 5675 .idc_lock = qla4_82xx_idc_lock, 5676 .idc_unlock = qla4_82xx_idc_unlock, 5677 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5678 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5679 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5680 }; 5681 5682 static struct isp_operations qla4_83xx_isp_ops = { 5683 .iospace_config = qla4_8xxx_iospace_config, 5684 .pci_config = qla4_8xxx_pci_config, 5685 .disable_intrs = qla4_83xx_disable_intrs, 5686 .enable_intrs = qla4_83xx_enable_intrs, 5687 .start_firmware = qla4_8xxx_load_risc, 5688 .restart_firmware = qla4_83xx_start_firmware, 5689 .intr_handler = qla4_83xx_intr_handler, 5690 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5691 .need_reset = qla4_8xxx_need_reset, 5692 .reset_chip = qla4_83xx_isp_reset, 5693 .reset_firmware = qla4_8xxx_stop_firmware, 5694 .queue_iocb = qla4_83xx_queue_iocb, 5695 .complete_iocb = qla4_83xx_complete_iocb, 5696 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5697 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5698 .get_sys_info = qla4_8xxx_get_sys_info, 5699 .rd_reg_direct = qla4_83xx_rd_reg, 5700 .wr_reg_direct = qla4_83xx_wr_reg, 5701 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5702 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5703 .idc_lock = qla4_83xx_drv_lock, 5704 .idc_unlock = qla4_83xx_drv_unlock, 5705 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5706 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5707 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5708 }; 5709 5710 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5711 { 5712 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5713 } 5714 5715 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5716 { 5717 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5718 } 5719 5720 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5721 { 5722 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5723 } 5724 5725 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5726 { 5727 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5728 } 5729 5730 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5731 { 5732 struct scsi_qla_host *ha = data; 5733 char *str = buf; 5734 int rc; 5735 5736 switch (type) { 5737 case ISCSI_BOOT_ETH_FLAGS: 5738 rc = sprintf(str, "%d\n", (char)SYSFS_FLAG_FW_SEL_BOOT); 5739 break; 5740 case ISCSI_BOOT_ETH_INDEX: 5741 rc = sprintf(str, "0\n"); 5742 break; 5743 case ISCSI_BOOT_ETH_MAC: 5744 rc = sysfs_format_mac(str, ha->my_mac, 5745 MAC_ADDR_LEN); 5746 break; 5747 default: 5748 rc = -ENOSYS; 5749 break; 5750 } 5751 return rc; 5752 } 5753 5754 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5755 { 5756 int rc; 5757 5758 switch (type) { 5759 case ISCSI_BOOT_ETH_FLAGS: 5760 case ISCSI_BOOT_ETH_MAC: 5761 case ISCSI_BOOT_ETH_INDEX: 5762 rc = S_IRUGO; 5763 break; 5764 default: 5765 rc = 0; 5766 break; 5767 } 5768 return rc; 5769 } 5770 5771 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5772 { 5773 struct scsi_qla_host *ha = data; 5774 char *str = buf; 5775 int rc; 5776 5777 switch (type) { 5778 case ISCSI_BOOT_INI_INITIATOR_NAME: 5779 rc = sprintf(str, "%s\n", ha->name_string); 5780 break; 5781 default: 5782 rc = -ENOSYS; 5783 break; 5784 } 5785 return rc; 5786 } 5787 5788 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5789 { 5790 int rc; 5791 5792 switch (type) { 5793 case ISCSI_BOOT_INI_INITIATOR_NAME: 5794 rc = S_IRUGO; 5795 break; 5796 default: 5797 rc = 0; 5798 break; 5799 } 5800 return rc; 5801 } 5802 5803 static ssize_t 5804 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5805 char *buf) 5806 { 5807 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5808 char *str = buf; 5809 int rc; 5810 5811 switch (type) { 5812 case ISCSI_BOOT_TGT_NAME: 5813 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5814 break; 5815 case ISCSI_BOOT_TGT_IP_ADDR: 5816 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5817 rc = sprintf(buf, "%pI4\n", 5818 &boot_conn->dest_ipaddr.ip_address); 5819 else 5820 rc = sprintf(str, "%pI6\n", 5821 &boot_conn->dest_ipaddr.ip_address); 5822 break; 5823 case ISCSI_BOOT_TGT_PORT: 5824 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5825 break; 5826 case ISCSI_BOOT_TGT_CHAP_NAME: 5827 rc = sprintf(str, "%.*s\n", 5828 boot_conn->chap.target_chap_name_length, 5829 (char *)&boot_conn->chap.target_chap_name); 5830 break; 5831 case ISCSI_BOOT_TGT_CHAP_SECRET: 5832 rc = sprintf(str, "%.*s\n", 5833 boot_conn->chap.target_secret_length, 5834 (char *)&boot_conn->chap.target_secret); 5835 break; 5836 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5837 rc = sprintf(str, "%.*s\n", 5838 boot_conn->chap.intr_chap_name_length, 5839 (char *)&boot_conn->chap.intr_chap_name); 5840 break; 5841 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5842 rc = sprintf(str, "%.*s\n", 5843 boot_conn->chap.intr_secret_length, 5844 (char *)&boot_conn->chap.intr_secret); 5845 break; 5846 case ISCSI_BOOT_TGT_FLAGS: 5847 rc = sprintf(str, "%d\n", (char)SYSFS_FLAG_FW_SEL_BOOT); 5848 break; 5849 case ISCSI_BOOT_TGT_NIC_ASSOC: 5850 rc = sprintf(str, "0\n"); 5851 break; 5852 default: 5853 rc = -ENOSYS; 5854 break; 5855 } 5856 return rc; 5857 } 5858 5859 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 5860 { 5861 struct scsi_qla_host *ha = data; 5862 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 5863 5864 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5865 } 5866 5867 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5868 { 5869 struct scsi_qla_host *ha = data; 5870 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5871 5872 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5873 } 5874 5875 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5876 { 5877 int rc; 5878 5879 switch (type) { 5880 case ISCSI_BOOT_TGT_NAME: 5881 case ISCSI_BOOT_TGT_IP_ADDR: 5882 case ISCSI_BOOT_TGT_PORT: 5883 case ISCSI_BOOT_TGT_CHAP_NAME: 5884 case ISCSI_BOOT_TGT_CHAP_SECRET: 5885 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5886 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5887 case ISCSI_BOOT_TGT_NIC_ASSOC: 5888 case ISCSI_BOOT_TGT_FLAGS: 5889 rc = S_IRUGO; 5890 break; 5891 default: 5892 rc = 0; 5893 break; 5894 } 5895 return rc; 5896 } 5897 5898 static void qla4xxx_boot_release(void *data) 5899 { 5900 struct scsi_qla_host *ha = data; 5901 5902 scsi_host_put(ha->host); 5903 } 5904 5905 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5906 { 5907 dma_addr_t buf_dma; 5908 uint32_t addr, pri_addr, sec_addr; 5909 uint32_t offset; 5910 uint16_t func_num; 5911 uint8_t val; 5912 uint8_t *buf = NULL; 5913 size_t size = 13 * sizeof(uint8_t); 5914 int ret = QLA_SUCCESS; 5915 5916 func_num = PCI_FUNC(ha->pdev->devfn); 5917 5918 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5919 __func__, ha->pdev->device, func_num); 5920 5921 if (is_qla40XX(ha)) { 5922 if (func_num == 1) { 5923 addr = NVRAM_PORT0_BOOT_MODE; 5924 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5925 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5926 } else if (func_num == 3) { 5927 addr = NVRAM_PORT1_BOOT_MODE; 5928 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5929 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5930 } else { 5931 ret = QLA_ERROR; 5932 goto exit_boot_info; 5933 } 5934 5935 /* Check Boot Mode */ 5936 val = rd_nvram_byte(ha, addr); 5937 if (!(val & 0x07)) { 5938 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5939 "options : 0x%x\n", __func__, val)); 5940 ret = QLA_ERROR; 5941 goto exit_boot_info; 5942 } 5943 5944 /* get primary valid target index */ 5945 val = rd_nvram_byte(ha, pri_addr); 5946 if (val & BIT_7) 5947 ddb_index[0] = (val & 0x7f); 5948 5949 /* get secondary valid target index */ 5950 val = rd_nvram_byte(ha, sec_addr); 5951 if (val & BIT_7) 5952 ddb_index[1] = (val & 0x7f); 5953 goto exit_boot_info; 5954 } else if (is_qla80XX(ha)) { 5955 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5956 &buf_dma, GFP_KERNEL); 5957 if (!buf) { 5958 DEBUG2(ql4_printk(KERN_ERR, ha, 5959 "%s: Unable to allocate dma buffer\n", 5960 __func__)); 5961 ret = QLA_ERROR; 5962 goto exit_boot_info; 5963 } 5964 5965 if (ha->port_num == 0) 5966 offset = BOOT_PARAM_OFFSET_PORT0; 5967 else if (ha->port_num == 1) 5968 offset = BOOT_PARAM_OFFSET_PORT1; 5969 else { 5970 ret = QLA_ERROR; 5971 goto exit_boot_info_free; 5972 } 5973 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5974 offset; 5975 if (qla4xxx_get_flash(ha, buf_dma, addr, 5976 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5977 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5978 " failed\n", ha->host_no, __func__)); 5979 ret = QLA_ERROR; 5980 goto exit_boot_info_free; 5981 } 5982 /* Check Boot Mode */ 5983 if (!(buf[1] & 0x07)) { 5984 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5985 " : 0x%x\n", buf[1])); 5986 ret = QLA_ERROR; 5987 goto exit_boot_info_free; 5988 } 5989 5990 /* get primary valid target index */ 5991 if (buf[2] & BIT_7) 5992 ddb_index[0] = buf[2] & 0x7f; 5993 5994 /* get secondary valid target index */ 5995 if (buf[11] & BIT_7) 5996 ddb_index[1] = buf[11] & 0x7f; 5997 } else { 5998 ret = QLA_ERROR; 5999 goto exit_boot_info; 6000 } 6001 6002 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 6003 " target ID %d\n", __func__, ddb_index[0], 6004 ddb_index[1])); 6005 6006 exit_boot_info_free: 6007 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 6008 exit_boot_info: 6009 ha->pri_ddb_idx = ddb_index[0]; 6010 ha->sec_ddb_idx = ddb_index[1]; 6011 return ret; 6012 } 6013 6014 /** 6015 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 6016 * @ha: pointer to adapter structure 6017 * @username: CHAP username to be returned 6018 * @password: CHAP password to be returned 6019 * 6020 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 6021 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 6022 * So from the CHAP cache find the first BIDI CHAP entry and set it 6023 * to the boot record in sysfs. 6024 **/ 6025 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 6026 char *password) 6027 { 6028 int i, ret = -EINVAL; 6029 int max_chap_entries = 0; 6030 struct ql4_chap_table *chap_table; 6031 6032 if (is_qla80XX(ha)) 6033 max_chap_entries = (ha->hw.flt_chap_size / 2) / 6034 sizeof(struct ql4_chap_table); 6035 else 6036 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 6037 6038 if (!ha->chap_list) { 6039 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 6040 return ret; 6041 } 6042 6043 mutex_lock(&ha->chap_sem); 6044 for (i = 0; i < max_chap_entries; i++) { 6045 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 6046 if (chap_table->cookie != 6047 cpu_to_le16(CHAP_VALID_COOKIE)) { 6048 continue; 6049 } 6050 6051 if (chap_table->flags & BIT_7) /* local */ 6052 continue; 6053 6054 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6055 continue; 6056 6057 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6058 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6059 ret = 0; 6060 break; 6061 } 6062 mutex_unlock(&ha->chap_sem); 6063 6064 return ret; 6065 } 6066 6067 6068 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6069 struct ql4_boot_session_info *boot_sess, 6070 uint16_t ddb_index) 6071 { 6072 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6073 struct dev_db_entry *fw_ddb_entry; 6074 dma_addr_t fw_ddb_entry_dma; 6075 uint16_t idx; 6076 uint16_t options; 6077 int ret = QLA_SUCCESS; 6078 6079 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6080 &fw_ddb_entry_dma, GFP_KERNEL); 6081 if (!fw_ddb_entry) { 6082 DEBUG2(ql4_printk(KERN_ERR, ha, 6083 "%s: Unable to allocate dma buffer.\n", 6084 __func__)); 6085 ret = QLA_ERROR; 6086 return ret; 6087 } 6088 6089 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6090 fw_ddb_entry_dma, ddb_index)) { 6091 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6092 "index [%d]\n", __func__, ddb_index)); 6093 ret = QLA_ERROR; 6094 goto exit_boot_target; 6095 } 6096 6097 /* Update target name and IP from DDB */ 6098 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6099 min(sizeof(boot_sess->target_name), 6100 sizeof(fw_ddb_entry->iscsi_name))); 6101 6102 options = le16_to_cpu(fw_ddb_entry->options); 6103 if (options & DDB_OPT_IPV6_DEVICE) { 6104 memcpy(&boot_conn->dest_ipaddr.ip_address, 6105 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6106 } else { 6107 boot_conn->dest_ipaddr.ip_type = 0x1; 6108 memcpy(&boot_conn->dest_ipaddr.ip_address, 6109 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6110 } 6111 6112 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6113 6114 /* update chap information */ 6115 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6116 6117 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6118 6119 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6120 6121 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6122 target_chap_name, 6123 (char *)&boot_conn->chap.target_secret, 6124 idx); 6125 if (ret) { 6126 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6127 ret = QLA_ERROR; 6128 goto exit_boot_target; 6129 } 6130 6131 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6132 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6133 } 6134 6135 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6136 6137 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6138 6139 ret = qla4xxx_get_bidi_chap(ha, 6140 (char *)&boot_conn->chap.intr_chap_name, 6141 (char *)&boot_conn->chap.intr_secret); 6142 6143 if (ret) { 6144 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6145 ret = QLA_ERROR; 6146 goto exit_boot_target; 6147 } 6148 6149 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6150 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6151 } 6152 6153 exit_boot_target: 6154 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6155 fw_ddb_entry, fw_ddb_entry_dma); 6156 return ret; 6157 } 6158 6159 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6160 { 6161 uint16_t ddb_index[2]; 6162 int ret = QLA_ERROR; 6163 int rval; 6164 6165 memset(ddb_index, 0, sizeof(ddb_index)); 6166 ddb_index[0] = 0xffff; 6167 ddb_index[1] = 0xffff; 6168 ret = get_fw_boot_info(ha, ddb_index); 6169 if (ret != QLA_SUCCESS) { 6170 DEBUG2(ql4_printk(KERN_INFO, ha, 6171 "%s: No boot target configured.\n", __func__)); 6172 return ret; 6173 } 6174 6175 if (ql4xdisablesysfsboot) 6176 return QLA_SUCCESS; 6177 6178 if (ddb_index[0] == 0xffff) 6179 goto sec_target; 6180 6181 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6182 ddb_index[0]); 6183 if (rval != QLA_SUCCESS) { 6184 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6185 "configured\n", __func__)); 6186 } else 6187 ret = QLA_SUCCESS; 6188 6189 sec_target: 6190 if (ddb_index[1] == 0xffff) 6191 goto exit_get_boot_info; 6192 6193 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6194 ddb_index[1]); 6195 if (rval != QLA_SUCCESS) { 6196 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6197 " configured\n", __func__)); 6198 } else 6199 ret = QLA_SUCCESS; 6200 6201 exit_get_boot_info: 6202 return ret; 6203 } 6204 6205 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6206 { 6207 struct iscsi_boot_kobj *boot_kobj; 6208 6209 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6210 return QLA_ERROR; 6211 6212 if (ql4xdisablesysfsboot) { 6213 ql4_printk(KERN_INFO, ha, 6214 "%s: syfsboot disabled - driver will trigger login " 6215 "and publish session for discovery .\n", __func__); 6216 return QLA_SUCCESS; 6217 } 6218 6219 6220 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6221 if (!ha->boot_kset) 6222 goto kset_free; 6223 6224 if (!scsi_host_get(ha->host)) 6225 goto kset_free; 6226 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6227 qla4xxx_show_boot_tgt_pri_info, 6228 qla4xxx_tgt_get_attr_visibility, 6229 qla4xxx_boot_release); 6230 if (!boot_kobj) 6231 goto put_host; 6232 6233 if (!scsi_host_get(ha->host)) 6234 goto kset_free; 6235 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6236 qla4xxx_show_boot_tgt_sec_info, 6237 qla4xxx_tgt_get_attr_visibility, 6238 qla4xxx_boot_release); 6239 if (!boot_kobj) 6240 goto put_host; 6241 6242 if (!scsi_host_get(ha->host)) 6243 goto kset_free; 6244 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6245 qla4xxx_show_boot_ini_info, 6246 qla4xxx_ini_get_attr_visibility, 6247 qla4xxx_boot_release); 6248 if (!boot_kobj) 6249 goto put_host; 6250 6251 if (!scsi_host_get(ha->host)) 6252 goto kset_free; 6253 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6254 qla4xxx_show_boot_eth_info, 6255 qla4xxx_eth_get_attr_visibility, 6256 qla4xxx_boot_release); 6257 if (!boot_kobj) 6258 goto put_host; 6259 6260 return QLA_SUCCESS; 6261 6262 put_host: 6263 scsi_host_put(ha->host); 6264 kset_free: 6265 iscsi_boot_destroy_kset(ha->boot_kset); 6266 return -ENOMEM; 6267 } 6268 6269 6270 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6271 struct ql4_tuple_ddb *tddb) 6272 { 6273 struct iscsi_cls_session *cls_sess; 6274 struct iscsi_cls_conn *cls_conn; 6275 struct iscsi_session *sess; 6276 struct iscsi_conn *conn; 6277 6278 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6279 cls_sess = ddb_entry->sess; 6280 sess = cls_sess->dd_data; 6281 cls_conn = ddb_entry->conn; 6282 conn = cls_conn->dd_data; 6283 6284 tddb->tpgt = sess->tpgt; 6285 tddb->port = conn->persistent_port; 6286 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 6287 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 6288 } 6289 6290 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6291 struct ql4_tuple_ddb *tddb, 6292 uint8_t *flash_isid) 6293 { 6294 uint16_t options = 0; 6295 6296 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6297 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6298 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6299 6300 options = le16_to_cpu(fw_ddb_entry->options); 6301 if (options & DDB_OPT_IPV6_DEVICE) 6302 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6303 else 6304 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6305 6306 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6307 6308 if (flash_isid == NULL) 6309 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6310 sizeof(tddb->isid)); 6311 else 6312 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6313 } 6314 6315 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6316 struct ql4_tuple_ddb *old_tddb, 6317 struct ql4_tuple_ddb *new_tddb, 6318 uint8_t is_isid_compare) 6319 { 6320 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6321 return QLA_ERROR; 6322 6323 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6324 return QLA_ERROR; 6325 6326 if (old_tddb->port != new_tddb->port) 6327 return QLA_ERROR; 6328 6329 /* For multi sessions, driver generates the ISID, so do not compare 6330 * ISID in reset path since it would be a comparison between the 6331 * driver generated ISID and firmware generated ISID. This could 6332 * lead to adding duplicated DDBs in the list as driver generated 6333 * ISID would not match firmware generated ISID. 6334 */ 6335 if (is_isid_compare) { 6336 DEBUG2(ql4_printk(KERN_INFO, ha, 6337 "%s: old ISID [%pmR] New ISID [%pmR]\n", 6338 __func__, old_tddb->isid, new_tddb->isid)); 6339 6340 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6341 sizeof(old_tddb->isid))) 6342 return QLA_ERROR; 6343 } 6344 6345 DEBUG2(ql4_printk(KERN_INFO, ha, 6346 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6347 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6348 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6349 new_tddb->ip_addr, new_tddb->iscsi_name)); 6350 6351 return QLA_SUCCESS; 6352 } 6353 6354 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6355 struct dev_db_entry *fw_ddb_entry, 6356 uint32_t *index) 6357 { 6358 struct ddb_entry *ddb_entry; 6359 struct ql4_tuple_ddb *fw_tddb = NULL; 6360 struct ql4_tuple_ddb *tmp_tddb = NULL; 6361 int idx; 6362 int ret = QLA_ERROR; 6363 6364 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6365 if (!fw_tddb) { 6366 DEBUG2(ql4_printk(KERN_WARNING, ha, 6367 "Memory Allocation failed.\n")); 6368 ret = QLA_SUCCESS; 6369 goto exit_check; 6370 } 6371 6372 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6373 if (!tmp_tddb) { 6374 DEBUG2(ql4_printk(KERN_WARNING, ha, 6375 "Memory Allocation failed.\n")); 6376 ret = QLA_SUCCESS; 6377 goto exit_check; 6378 } 6379 6380 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6381 6382 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6383 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6384 if (ddb_entry == NULL) 6385 continue; 6386 6387 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6388 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6389 ret = QLA_SUCCESS; /* found */ 6390 if (index != NULL) 6391 *index = idx; 6392 goto exit_check; 6393 } 6394 } 6395 6396 exit_check: 6397 vfree(fw_tddb); 6398 vfree(tmp_tddb); 6399 return ret; 6400 } 6401 6402 /** 6403 * qla4xxx_check_existing_isid - check if target with same isid exist 6404 * in target list 6405 * @list_nt: list of target 6406 * @isid: isid to check 6407 * 6408 * This routine return QLA_SUCCESS if target with same isid exist 6409 **/ 6410 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6411 { 6412 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6413 struct dev_db_entry *fw_ddb_entry; 6414 6415 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6416 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6417 6418 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6419 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6420 return QLA_SUCCESS; 6421 } 6422 } 6423 return QLA_ERROR; 6424 } 6425 6426 /** 6427 * qla4xxx_update_isid - compare ddbs and updated isid 6428 * @ha: Pointer to host adapter structure. 6429 * @list_nt: list of nt target 6430 * @fw_ddb_entry: firmware ddb entry 6431 * 6432 * This routine update isid if ddbs have same iqn, same isid and 6433 * different IP addr. 6434 * Return QLA_SUCCESS if isid is updated. 6435 **/ 6436 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6437 struct list_head *list_nt, 6438 struct dev_db_entry *fw_ddb_entry) 6439 { 6440 uint8_t base_value, i; 6441 6442 base_value = fw_ddb_entry->isid[1] & 0x1f; 6443 for (i = 0; i < 8; i++) { 6444 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6445 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6446 break; 6447 } 6448 6449 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6450 return QLA_ERROR; 6451 6452 return QLA_SUCCESS; 6453 } 6454 6455 /** 6456 * qla4xxx_should_update_isid - check if isid need to update 6457 * @ha: Pointer to host adapter structure. 6458 * @old_tddb: ddb tuple 6459 * @new_tddb: ddb tuple 6460 * 6461 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6462 * same isid 6463 **/ 6464 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6465 struct ql4_tuple_ddb *old_tddb, 6466 struct ql4_tuple_ddb *new_tddb) 6467 { 6468 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6469 /* Same ip */ 6470 if (old_tddb->port == new_tddb->port) 6471 return QLA_ERROR; 6472 } 6473 6474 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6475 /* different iqn */ 6476 return QLA_ERROR; 6477 6478 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6479 sizeof(old_tddb->isid))) 6480 /* different isid */ 6481 return QLA_ERROR; 6482 6483 return QLA_SUCCESS; 6484 } 6485 6486 /** 6487 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6488 * @ha: Pointer to host adapter structure. 6489 * @list_nt: list of nt target. 6490 * @fw_ddb_entry: firmware ddb entry. 6491 * 6492 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6493 * duplicate ddb in list_nt. 6494 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6495 * Note: This function also update isid of DDB if required. 6496 **/ 6497 6498 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6499 struct list_head *list_nt, 6500 struct dev_db_entry *fw_ddb_entry) 6501 { 6502 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6503 struct ql4_tuple_ddb *fw_tddb = NULL; 6504 struct ql4_tuple_ddb *tmp_tddb = NULL; 6505 int rval, ret = QLA_ERROR; 6506 6507 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6508 if (!fw_tddb) { 6509 DEBUG2(ql4_printk(KERN_WARNING, ha, 6510 "Memory Allocation failed.\n")); 6511 ret = QLA_SUCCESS; 6512 goto exit_check; 6513 } 6514 6515 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6516 if (!tmp_tddb) { 6517 DEBUG2(ql4_printk(KERN_WARNING, ha, 6518 "Memory Allocation failed.\n")); 6519 ret = QLA_SUCCESS; 6520 goto exit_check; 6521 } 6522 6523 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6524 6525 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6526 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6527 nt_ddb_idx->flash_isid); 6528 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6529 /* found duplicate ddb */ 6530 if (ret == QLA_SUCCESS) 6531 goto exit_check; 6532 } 6533 6534 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6535 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6536 6537 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6538 if (ret == QLA_SUCCESS) { 6539 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6540 if (rval == QLA_SUCCESS) 6541 ret = QLA_ERROR; 6542 else 6543 ret = QLA_SUCCESS; 6544 6545 goto exit_check; 6546 } 6547 } 6548 6549 exit_check: 6550 vfree(fw_tddb); 6551 vfree(tmp_tddb); 6552 return ret; 6553 } 6554 6555 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6556 { 6557 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6558 6559 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6560 list_del_init(&ddb_idx->list); 6561 vfree(ddb_idx); 6562 } 6563 } 6564 6565 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6566 struct dev_db_entry *fw_ddb_entry) 6567 { 6568 struct iscsi_endpoint *ep; 6569 struct sockaddr_in *addr; 6570 struct sockaddr_in6 *addr6; 6571 struct sockaddr *t_addr; 6572 struct sockaddr_storage *dst_addr; 6573 char *ip; 6574 6575 /* TODO: need to destroy on unload iscsi_endpoint*/ 6576 dst_addr = vmalloc(sizeof(*dst_addr)); 6577 if (!dst_addr) 6578 return NULL; 6579 6580 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6581 t_addr = (struct sockaddr *)dst_addr; 6582 t_addr->sa_family = AF_INET6; 6583 addr6 = (struct sockaddr_in6 *)dst_addr; 6584 ip = (char *)&addr6->sin6_addr; 6585 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6586 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6587 6588 } else { 6589 t_addr = (struct sockaddr *)dst_addr; 6590 t_addr->sa_family = AF_INET; 6591 addr = (struct sockaddr_in *)dst_addr; 6592 ip = (char *)&addr->sin_addr; 6593 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6594 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6595 } 6596 6597 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6598 vfree(dst_addr); 6599 return ep; 6600 } 6601 6602 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6603 { 6604 if (ql4xdisablesysfsboot) 6605 return QLA_SUCCESS; 6606 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6607 return QLA_ERROR; 6608 return QLA_SUCCESS; 6609 } 6610 6611 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6612 struct ddb_entry *ddb_entry, 6613 uint16_t idx) 6614 { 6615 uint16_t def_timeout; 6616 6617 ddb_entry->ddb_type = FLASH_DDB; 6618 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6619 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6620 ddb_entry->ha = ha; 6621 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6622 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6623 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6624 6625 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6626 atomic_set(&ddb_entry->relogin_timer, 0); 6627 atomic_set(&ddb_entry->relogin_retry_count, 0); 6628 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6629 ddb_entry->default_relogin_timeout = 6630 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6631 def_timeout : LOGIN_TOV; 6632 ddb_entry->default_time2wait = 6633 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6634 6635 if (ql4xdisablesysfsboot && 6636 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6637 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6638 } 6639 6640 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6641 { 6642 uint32_t idx = 0; 6643 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6644 uint32_t sts[MBOX_REG_COUNT]; 6645 uint32_t ip_state; 6646 unsigned long wtime; 6647 int ret; 6648 6649 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6650 do { 6651 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6652 if (ip_idx[idx] == -1) 6653 continue; 6654 6655 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6656 6657 if (ret == QLA_ERROR) { 6658 ip_idx[idx] = -1; 6659 continue; 6660 } 6661 6662 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6663 6664 DEBUG2(ql4_printk(KERN_INFO, ha, 6665 "Waiting for IP state for idx = %d, state = 0x%x\n", 6666 ip_idx[idx], ip_state)); 6667 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6668 ip_state == IP_ADDRSTATE_INVALID || 6669 ip_state == IP_ADDRSTATE_PREFERRED || 6670 ip_state == IP_ADDRSTATE_DEPRICATED || 6671 ip_state == IP_ADDRSTATE_DISABLING) 6672 ip_idx[idx] = -1; 6673 } 6674 6675 /* Break if all IP states checked */ 6676 if ((ip_idx[0] == -1) && 6677 (ip_idx[1] == -1) && 6678 (ip_idx[2] == -1) && 6679 (ip_idx[3] == -1)) 6680 break; 6681 schedule_timeout_uninterruptible(HZ); 6682 } while (time_after(wtime, jiffies)); 6683 } 6684 6685 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6686 struct dev_db_entry *flash_ddb_entry) 6687 { 6688 uint16_t options = 0; 6689 size_t ip_len = IP_ADDR_LEN; 6690 6691 options = le16_to_cpu(fw_ddb_entry->options); 6692 if (options & DDB_OPT_IPV6_DEVICE) 6693 ip_len = IPv6_ADDR_LEN; 6694 6695 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6696 return QLA_ERROR; 6697 6698 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6699 sizeof(fw_ddb_entry->isid))) 6700 return QLA_ERROR; 6701 6702 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6703 sizeof(fw_ddb_entry->port))) 6704 return QLA_ERROR; 6705 6706 return QLA_SUCCESS; 6707 } 6708 6709 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6710 struct dev_db_entry *fw_ddb_entry, 6711 uint32_t fw_idx, uint32_t *flash_index) 6712 { 6713 struct dev_db_entry *flash_ddb_entry; 6714 dma_addr_t flash_ddb_entry_dma; 6715 uint32_t idx = 0; 6716 int max_ddbs; 6717 int ret = QLA_ERROR, status; 6718 6719 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6720 MAX_DEV_DB_ENTRIES; 6721 6722 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6723 &flash_ddb_entry_dma); 6724 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6725 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6726 goto exit_find_st_idx; 6727 } 6728 6729 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6730 flash_ddb_entry_dma, fw_idx); 6731 if (status == QLA_SUCCESS) { 6732 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6733 if (status == QLA_SUCCESS) { 6734 *flash_index = fw_idx; 6735 ret = QLA_SUCCESS; 6736 goto exit_find_st_idx; 6737 } 6738 } 6739 6740 for (idx = 0; idx < max_ddbs; idx++) { 6741 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6742 flash_ddb_entry_dma, idx); 6743 if (status == QLA_ERROR) 6744 continue; 6745 6746 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6747 if (status == QLA_SUCCESS) { 6748 *flash_index = idx; 6749 ret = QLA_SUCCESS; 6750 goto exit_find_st_idx; 6751 } 6752 } 6753 6754 if (idx == max_ddbs) 6755 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6756 fw_idx); 6757 6758 exit_find_st_idx: 6759 if (flash_ddb_entry) 6760 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6761 flash_ddb_entry_dma); 6762 6763 return ret; 6764 } 6765 6766 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6767 struct list_head *list_st) 6768 { 6769 struct qla_ddb_index *st_ddb_idx; 6770 int max_ddbs; 6771 int fw_idx_size; 6772 struct dev_db_entry *fw_ddb_entry; 6773 dma_addr_t fw_ddb_dma; 6774 int ret; 6775 uint32_t idx = 0, next_idx = 0; 6776 uint32_t state = 0, conn_err = 0; 6777 uint32_t flash_index = -1; 6778 uint16_t conn_id = 0; 6779 6780 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6781 &fw_ddb_dma); 6782 if (fw_ddb_entry == NULL) { 6783 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6784 goto exit_st_list; 6785 } 6786 6787 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6788 MAX_DEV_DB_ENTRIES; 6789 fw_idx_size = sizeof(struct qla_ddb_index); 6790 6791 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6792 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6793 NULL, &next_idx, &state, 6794 &conn_err, NULL, &conn_id); 6795 if (ret == QLA_ERROR) 6796 break; 6797 6798 /* Ignore DDB if invalid state (unassigned) */ 6799 if (state == DDB_DS_UNASSIGNED) 6800 goto continue_next_st; 6801 6802 /* Check if ST, add to the list_st */ 6803 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6804 goto continue_next_st; 6805 6806 st_ddb_idx = vzalloc(fw_idx_size); 6807 if (!st_ddb_idx) 6808 break; 6809 6810 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6811 &flash_index); 6812 if (ret == QLA_ERROR) { 6813 ql4_printk(KERN_ERR, ha, 6814 "No flash entry for ST at idx [%d]\n", idx); 6815 st_ddb_idx->flash_ddb_idx = idx; 6816 } else { 6817 ql4_printk(KERN_INFO, ha, 6818 "ST at idx [%d] is stored at flash [%d]\n", 6819 idx, flash_index); 6820 st_ddb_idx->flash_ddb_idx = flash_index; 6821 } 6822 6823 st_ddb_idx->fw_ddb_idx = idx; 6824 6825 list_add_tail(&st_ddb_idx->list, list_st); 6826 continue_next_st: 6827 if (next_idx == 0) 6828 break; 6829 } 6830 6831 exit_st_list: 6832 if (fw_ddb_entry) 6833 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6834 } 6835 6836 /** 6837 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6838 * @ha: pointer to adapter structure 6839 * @list_ddb: List from which failed ddb to be removed 6840 * 6841 * Iterate over the list of DDBs and find and remove DDBs that are either in 6842 * no connection active state or failed state 6843 **/ 6844 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6845 struct list_head *list_ddb) 6846 { 6847 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6848 uint32_t next_idx = 0; 6849 uint32_t state = 0, conn_err = 0; 6850 int ret; 6851 6852 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6853 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6854 NULL, 0, NULL, &next_idx, &state, 6855 &conn_err, NULL, NULL); 6856 if (ret == QLA_ERROR) 6857 continue; 6858 6859 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6860 state == DDB_DS_SESSION_FAILED) { 6861 list_del_init(&ddb_idx->list); 6862 vfree(ddb_idx); 6863 } 6864 } 6865 } 6866 6867 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6868 struct ddb_entry *ddb_entry, 6869 struct dev_db_entry *fw_ddb_entry) 6870 { 6871 struct iscsi_cls_session *cls_sess; 6872 struct iscsi_session *sess; 6873 uint32_t max_ddbs = 0; 6874 uint16_t ddb_link = -1; 6875 6876 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6877 MAX_DEV_DB_ENTRIES; 6878 6879 cls_sess = ddb_entry->sess; 6880 sess = cls_sess->dd_data; 6881 6882 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6883 if (ddb_link < max_ddbs) 6884 sess->discovery_parent_idx = ddb_link; 6885 else 6886 sess->discovery_parent_idx = DDB_NO_LINK; 6887 } 6888 6889 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6890 struct dev_db_entry *fw_ddb_entry, 6891 int is_reset, uint16_t idx) 6892 { 6893 struct iscsi_cls_session *cls_sess; 6894 struct iscsi_session *sess; 6895 struct iscsi_cls_conn *cls_conn; 6896 struct iscsi_endpoint *ep; 6897 uint16_t cmds_max = 32; 6898 uint16_t conn_id = 0; 6899 uint32_t initial_cmdsn = 0; 6900 int ret = QLA_SUCCESS; 6901 6902 struct ddb_entry *ddb_entry = NULL; 6903 6904 /* Create session object, with INVALID_ENTRY, 6905 * the targer_id would get set when we issue the login 6906 */ 6907 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6908 cmds_max, sizeof(struct ddb_entry), 6909 sizeof(struct ql4_task_data), 6910 initial_cmdsn, INVALID_ENTRY); 6911 if (!cls_sess) { 6912 ret = QLA_ERROR; 6913 goto exit_setup; 6914 } 6915 6916 /* 6917 * so calling module_put function to decrement the 6918 * reference count. 6919 **/ 6920 module_put(qla4xxx_iscsi_transport.owner); 6921 sess = cls_sess->dd_data; 6922 ddb_entry = sess->dd_data; 6923 ddb_entry->sess = cls_sess; 6924 6925 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6926 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6927 sizeof(struct dev_db_entry)); 6928 6929 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6930 6931 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6932 6933 if (!cls_conn) { 6934 ret = QLA_ERROR; 6935 goto exit_setup; 6936 } 6937 6938 ddb_entry->conn = cls_conn; 6939 6940 /* Setup ep, for displaying attributes in sysfs */ 6941 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6942 if (ep) { 6943 ep->conn = cls_conn; 6944 cls_conn->ep = ep; 6945 } else { 6946 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6947 ret = QLA_ERROR; 6948 goto exit_setup; 6949 } 6950 6951 /* Update sess/conn params */ 6952 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6953 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6954 6955 if (is_reset == RESET_ADAPTER) { 6956 iscsi_block_session(cls_sess); 6957 /* Use the relogin path to discover new devices 6958 * by short-circuiting the logic of setting 6959 * timer to relogin - instead set the flags 6960 * to initiate login right away. 6961 */ 6962 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6963 set_bit(DF_RELOGIN, &ddb_entry->flags); 6964 } 6965 6966 exit_setup: 6967 return ret; 6968 } 6969 6970 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6971 struct list_head *list_ddb, 6972 struct dev_db_entry *fw_ddb_entry) 6973 { 6974 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6975 uint16_t ddb_link; 6976 6977 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6978 6979 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6980 if (ddb_idx->fw_ddb_idx == ddb_link) { 6981 DEBUG2(ql4_printk(KERN_INFO, ha, 6982 "Updating NT parent idx from [%d] to [%d]\n", 6983 ddb_link, ddb_idx->flash_ddb_idx)); 6984 fw_ddb_entry->ddb_link = 6985 cpu_to_le16(ddb_idx->flash_ddb_idx); 6986 return; 6987 } 6988 } 6989 } 6990 6991 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 6992 struct list_head *list_nt, 6993 struct list_head *list_st, 6994 int is_reset) 6995 { 6996 struct dev_db_entry *fw_ddb_entry; 6997 struct ddb_entry *ddb_entry = NULL; 6998 dma_addr_t fw_ddb_dma; 6999 int max_ddbs; 7000 int fw_idx_size; 7001 int ret; 7002 uint32_t idx = 0, next_idx = 0; 7003 uint32_t state = 0, conn_err = 0; 7004 uint32_t ddb_idx = -1; 7005 uint16_t conn_id = 0; 7006 uint16_t ddb_link = -1; 7007 struct qla_ddb_index *nt_ddb_idx; 7008 7009 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7010 &fw_ddb_dma); 7011 if (fw_ddb_entry == NULL) { 7012 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7013 goto exit_nt_list; 7014 } 7015 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7016 MAX_DEV_DB_ENTRIES; 7017 fw_idx_size = sizeof(struct qla_ddb_index); 7018 7019 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7020 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7021 NULL, &next_idx, &state, 7022 &conn_err, NULL, &conn_id); 7023 if (ret == QLA_ERROR) 7024 break; 7025 7026 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 7027 goto continue_next_nt; 7028 7029 /* Check if NT, then add to list it */ 7030 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 7031 goto continue_next_nt; 7032 7033 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 7034 if (ddb_link < max_ddbs) 7035 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 7036 7037 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 7038 state == DDB_DS_SESSION_FAILED) && 7039 (is_reset == INIT_ADAPTER)) 7040 goto continue_next_nt; 7041 7042 DEBUG2(ql4_printk(KERN_INFO, ha, 7043 "Adding DDB to session = 0x%x\n", idx)); 7044 7045 if (is_reset == INIT_ADAPTER) { 7046 nt_ddb_idx = vmalloc(fw_idx_size); 7047 if (!nt_ddb_idx) 7048 break; 7049 7050 nt_ddb_idx->fw_ddb_idx = idx; 7051 7052 /* Copy original isid as it may get updated in function 7053 * qla4xxx_update_isid(). We need original isid in 7054 * function qla4xxx_compare_tuple_ddb to find duplicate 7055 * target */ 7056 memcpy(&nt_ddb_idx->flash_isid[0], 7057 &fw_ddb_entry->isid[0], 7058 sizeof(nt_ddb_idx->flash_isid)); 7059 7060 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7061 fw_ddb_entry); 7062 if (ret == QLA_SUCCESS) { 7063 /* free nt_ddb_idx and do not add to list_nt */ 7064 vfree(nt_ddb_idx); 7065 goto continue_next_nt; 7066 } 7067 7068 /* Copy updated isid */ 7069 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7070 sizeof(struct dev_db_entry)); 7071 7072 list_add_tail(&nt_ddb_idx->list, list_nt); 7073 } else if (is_reset == RESET_ADAPTER) { 7074 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7075 &ddb_idx); 7076 if (ret == QLA_SUCCESS) { 7077 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7078 ddb_idx); 7079 if (ddb_entry != NULL) 7080 qla4xxx_update_sess_disc_idx(ha, 7081 ddb_entry, 7082 fw_ddb_entry); 7083 goto continue_next_nt; 7084 } 7085 } 7086 7087 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7088 if (ret == QLA_ERROR) 7089 goto exit_nt_list; 7090 7091 continue_next_nt: 7092 if (next_idx == 0) 7093 break; 7094 } 7095 7096 exit_nt_list: 7097 if (fw_ddb_entry) 7098 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7099 } 7100 7101 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7102 struct list_head *list_nt, 7103 uint16_t target_id) 7104 { 7105 struct dev_db_entry *fw_ddb_entry; 7106 dma_addr_t fw_ddb_dma; 7107 int max_ddbs; 7108 int fw_idx_size; 7109 int ret; 7110 uint32_t idx = 0, next_idx = 0; 7111 uint32_t state = 0, conn_err = 0; 7112 uint16_t conn_id = 0; 7113 struct qla_ddb_index *nt_ddb_idx; 7114 7115 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7116 &fw_ddb_dma); 7117 if (fw_ddb_entry == NULL) { 7118 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7119 goto exit_new_nt_list; 7120 } 7121 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7122 MAX_DEV_DB_ENTRIES; 7123 fw_idx_size = sizeof(struct qla_ddb_index); 7124 7125 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7126 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7127 NULL, &next_idx, &state, 7128 &conn_err, NULL, &conn_id); 7129 if (ret == QLA_ERROR) 7130 break; 7131 7132 /* Check if NT, then add it to list */ 7133 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7134 goto continue_next_new_nt; 7135 7136 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7137 goto continue_next_new_nt; 7138 7139 DEBUG2(ql4_printk(KERN_INFO, ha, 7140 "Adding DDB to session = 0x%x\n", idx)); 7141 7142 nt_ddb_idx = vmalloc(fw_idx_size); 7143 if (!nt_ddb_idx) 7144 break; 7145 7146 nt_ddb_idx->fw_ddb_idx = idx; 7147 7148 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7149 if (ret == QLA_SUCCESS) { 7150 /* free nt_ddb_idx and do not add to list_nt */ 7151 vfree(nt_ddb_idx); 7152 goto continue_next_new_nt; 7153 } 7154 7155 if (target_id < max_ddbs) 7156 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7157 7158 list_add_tail(&nt_ddb_idx->list, list_nt); 7159 7160 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7161 idx); 7162 if (ret == QLA_ERROR) 7163 goto exit_new_nt_list; 7164 7165 continue_next_new_nt: 7166 if (next_idx == 0) 7167 break; 7168 } 7169 7170 exit_new_nt_list: 7171 if (fw_ddb_entry) 7172 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7173 } 7174 7175 /** 7176 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7177 * @dev: dev associated with the sysfs entry 7178 * @data: pointer to flashnode session object 7179 * 7180 * Returns: 7181 * 1: if flashnode entry is non-persistent 7182 * 0: if flashnode entry is persistent 7183 **/ 7184 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) 7185 { 7186 struct iscsi_bus_flash_session *fnode_sess; 7187 7188 if (!iscsi_flashnode_bus_match(dev, NULL)) 7189 return 0; 7190 7191 fnode_sess = iscsi_dev_to_flash_session(dev); 7192 7193 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7194 } 7195 7196 /** 7197 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7198 * @ha: pointer to host 7199 * @fw_ddb_entry: flash ddb data 7200 * @idx: target index 7201 * @user: if set then this call is made from userland else from kernel 7202 * 7203 * Returns: 7204 * On sucess: QLA_SUCCESS 7205 * On failure: QLA_ERROR 7206 * 7207 * This create separate sysfs entries for session and connection attributes of 7208 * the given fw ddb entry. 7209 * If this is invoked as a result of a userspace call then the entry is marked 7210 * as nonpersistent using flash_state field. 7211 **/ 7212 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7213 struct dev_db_entry *fw_ddb_entry, 7214 uint16_t *idx, int user) 7215 { 7216 struct iscsi_bus_flash_session *fnode_sess = NULL; 7217 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7218 int rc = QLA_ERROR; 7219 7220 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7221 &qla4xxx_iscsi_transport, 0); 7222 if (!fnode_sess) { 7223 ql4_printk(KERN_ERR, ha, 7224 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7225 __func__, *idx, ha->host_no); 7226 goto exit_tgt_create; 7227 } 7228 7229 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7230 &qla4xxx_iscsi_transport, 0); 7231 if (!fnode_conn) { 7232 ql4_printk(KERN_ERR, ha, 7233 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7234 __func__, *idx, ha->host_no); 7235 goto free_sess; 7236 } 7237 7238 if (user) { 7239 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7240 } else { 7241 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7242 7243 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7244 fnode_sess->is_boot_target = 1; 7245 else 7246 fnode_sess->is_boot_target = 0; 7247 } 7248 7249 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7250 fw_ddb_entry); 7251 if (rc) 7252 goto free_sess; 7253 7254 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7255 __func__, fnode_sess->dev.kobj.name); 7256 7257 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7258 __func__, fnode_conn->dev.kobj.name); 7259 7260 return QLA_SUCCESS; 7261 7262 free_sess: 7263 iscsi_destroy_flashnode_sess(fnode_sess); 7264 7265 exit_tgt_create: 7266 return QLA_ERROR; 7267 } 7268 7269 /** 7270 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7271 * @shost: pointer to host 7272 * @buf: type of ddb entry (ipv4/ipv6) 7273 * @len: length of buf 7274 * 7275 * This creates new ddb entry in the flash by finding first free index and 7276 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7277 **/ 7278 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7279 int len) 7280 { 7281 struct scsi_qla_host *ha = to_qla_host(shost); 7282 struct dev_db_entry *fw_ddb_entry = NULL; 7283 dma_addr_t fw_ddb_entry_dma; 7284 struct device *dev; 7285 uint16_t idx = 0; 7286 uint16_t max_ddbs = 0; 7287 uint32_t options = 0; 7288 uint32_t rval = QLA_ERROR; 7289 7290 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7291 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7292 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7293 __func__)); 7294 goto exit_ddb_add; 7295 } 7296 7297 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7298 MAX_DEV_DB_ENTRIES; 7299 7300 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7301 &fw_ddb_entry_dma, GFP_KERNEL); 7302 if (!fw_ddb_entry) { 7303 DEBUG2(ql4_printk(KERN_ERR, ha, 7304 "%s: Unable to allocate dma buffer\n", 7305 __func__)); 7306 goto exit_ddb_add; 7307 } 7308 7309 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7310 qla4xxx_sysfs_ddb_is_non_persistent); 7311 if (dev) { 7312 ql4_printk(KERN_ERR, ha, 7313 "%s: A non-persistent entry %s found\n", 7314 __func__, dev->kobj.name); 7315 put_device(dev); 7316 goto exit_ddb_add; 7317 } 7318 7319 /* Index 0 and 1 are reserved for boot target entries */ 7320 for (idx = 2; idx < max_ddbs; idx++) { 7321 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7322 fw_ddb_entry_dma, idx)) 7323 break; 7324 } 7325 7326 if (idx == max_ddbs) 7327 goto exit_ddb_add; 7328 7329 if (!strncasecmp("ipv6", buf, 4)) 7330 options |= IPV6_DEFAULT_DDB_ENTRY; 7331 7332 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7333 if (rval == QLA_ERROR) 7334 goto exit_ddb_add; 7335 7336 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7337 7338 exit_ddb_add: 7339 if (fw_ddb_entry) 7340 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7341 fw_ddb_entry, fw_ddb_entry_dma); 7342 if (rval == QLA_SUCCESS) 7343 return idx; 7344 else 7345 return -EIO; 7346 } 7347 7348 /** 7349 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7350 * @fnode_sess: pointer to session attrs of flash ddb entry 7351 * @fnode_conn: pointer to connection attrs of flash ddb entry 7352 * 7353 * This writes the contents of target ddb buffer to Flash with a valid cookie 7354 * value in order to make the ddb entry persistent. 7355 **/ 7356 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7357 struct iscsi_bus_flash_conn *fnode_conn) 7358 { 7359 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7360 struct scsi_qla_host *ha = to_qla_host(shost); 7361 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7362 struct dev_db_entry *fw_ddb_entry = NULL; 7363 dma_addr_t fw_ddb_entry_dma; 7364 uint32_t options = 0; 7365 int rval = 0; 7366 7367 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7368 &fw_ddb_entry_dma, GFP_KERNEL); 7369 if (!fw_ddb_entry) { 7370 DEBUG2(ql4_printk(KERN_ERR, ha, 7371 "%s: Unable to allocate dma buffer\n", 7372 __func__)); 7373 rval = -ENOMEM; 7374 goto exit_ddb_apply; 7375 } 7376 7377 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7378 options |= IPV6_DEFAULT_DDB_ENTRY; 7379 7380 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7381 if (rval == QLA_ERROR) 7382 goto exit_ddb_apply; 7383 7384 dev_db_start_offset += (fnode_sess->target_id * 7385 sizeof(*fw_ddb_entry)); 7386 7387 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7388 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7389 7390 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7391 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7392 7393 if (rval == QLA_SUCCESS) { 7394 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7395 ql4_printk(KERN_INFO, ha, 7396 "%s: flash node %u of host %lu written to flash\n", 7397 __func__, fnode_sess->target_id, ha->host_no); 7398 } else { 7399 rval = -EIO; 7400 ql4_printk(KERN_ERR, ha, 7401 "%s: Error while writing flash node %u of host %lu to flash\n", 7402 __func__, fnode_sess->target_id, ha->host_no); 7403 } 7404 7405 exit_ddb_apply: 7406 if (fw_ddb_entry) 7407 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7408 fw_ddb_entry, fw_ddb_entry_dma); 7409 return rval; 7410 } 7411 7412 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7413 struct dev_db_entry *fw_ddb_entry, 7414 uint16_t idx) 7415 { 7416 struct dev_db_entry *ddb_entry = NULL; 7417 dma_addr_t ddb_entry_dma; 7418 unsigned long wtime; 7419 uint32_t mbx_sts = 0; 7420 uint32_t state = 0, conn_err = 0; 7421 uint16_t tmo = 0; 7422 int ret = 0; 7423 7424 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7425 &ddb_entry_dma, GFP_KERNEL); 7426 if (!ddb_entry) { 7427 DEBUG2(ql4_printk(KERN_ERR, ha, 7428 "%s: Unable to allocate dma buffer\n", 7429 __func__)); 7430 return QLA_ERROR; 7431 } 7432 7433 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7434 7435 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7436 if (ret != QLA_SUCCESS) { 7437 DEBUG2(ql4_printk(KERN_ERR, ha, 7438 "%s: Unable to set ddb entry for index %d\n", 7439 __func__, idx)); 7440 goto exit_ddb_conn_open; 7441 } 7442 7443 qla4xxx_conn_open(ha, idx); 7444 7445 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7446 tmo = ((ha->def_timeout > LOGIN_TOV) && 7447 (ha->def_timeout < LOGIN_TOV * 10) ? 7448 ha->def_timeout : LOGIN_TOV); 7449 7450 DEBUG2(ql4_printk(KERN_INFO, ha, 7451 "Default time to wait for login to ddb %d\n", tmo)); 7452 7453 wtime = jiffies + (HZ * tmo); 7454 do { 7455 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7456 NULL, &state, &conn_err, NULL, 7457 NULL); 7458 if (ret == QLA_ERROR) 7459 continue; 7460 7461 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7462 state == DDB_DS_SESSION_FAILED) 7463 break; 7464 7465 schedule_timeout_uninterruptible(HZ / 10); 7466 } while (time_after(wtime, jiffies)); 7467 7468 exit_ddb_conn_open: 7469 if (ddb_entry) 7470 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7471 ddb_entry, ddb_entry_dma); 7472 return ret; 7473 } 7474 7475 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7476 struct dev_db_entry *fw_ddb_entry, 7477 uint16_t target_id) 7478 { 7479 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7480 struct list_head list_nt; 7481 uint16_t ddb_index; 7482 int ret = 0; 7483 7484 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7485 ql4_printk(KERN_WARNING, ha, 7486 "%s: A discovery already in progress!\n", __func__); 7487 return QLA_ERROR; 7488 } 7489 7490 INIT_LIST_HEAD(&list_nt); 7491 7492 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7493 7494 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7495 if (ret == QLA_ERROR) 7496 goto exit_login_st_clr_bit; 7497 7498 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7499 if (ret == QLA_ERROR) 7500 goto exit_login_st; 7501 7502 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7503 7504 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7505 list_del_init(&ddb_idx->list); 7506 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7507 vfree(ddb_idx); 7508 } 7509 7510 exit_login_st: 7511 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7512 ql4_printk(KERN_ERR, ha, 7513 "Unable to clear DDB index = 0x%x\n", ddb_index); 7514 } 7515 7516 clear_bit(ddb_index, ha->ddb_idx_map); 7517 7518 exit_login_st_clr_bit: 7519 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7520 return ret; 7521 } 7522 7523 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7524 struct dev_db_entry *fw_ddb_entry, 7525 uint16_t idx) 7526 { 7527 int ret = QLA_ERROR; 7528 7529 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7530 if (ret != QLA_SUCCESS) 7531 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7532 idx); 7533 else 7534 ret = -EPERM; 7535 7536 return ret; 7537 } 7538 7539 /** 7540 * qla4xxx_sysfs_ddb_login - Login to the specified target 7541 * @fnode_sess: pointer to session attrs of flash ddb entry 7542 * @fnode_conn: pointer to connection attrs of flash ddb entry 7543 * 7544 * This logs in to the specified target 7545 **/ 7546 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7547 struct iscsi_bus_flash_conn *fnode_conn) 7548 { 7549 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7550 struct scsi_qla_host *ha = to_qla_host(shost); 7551 struct dev_db_entry *fw_ddb_entry = NULL; 7552 dma_addr_t fw_ddb_entry_dma; 7553 uint32_t options = 0; 7554 int ret = 0; 7555 7556 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7557 ql4_printk(KERN_ERR, ha, 7558 "%s: Target info is not persistent\n", __func__); 7559 ret = -EIO; 7560 goto exit_ddb_login; 7561 } 7562 7563 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7564 &fw_ddb_entry_dma, GFP_KERNEL); 7565 if (!fw_ddb_entry) { 7566 DEBUG2(ql4_printk(KERN_ERR, ha, 7567 "%s: Unable to allocate dma buffer\n", 7568 __func__)); 7569 ret = -ENOMEM; 7570 goto exit_ddb_login; 7571 } 7572 7573 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7574 options |= IPV6_DEFAULT_DDB_ENTRY; 7575 7576 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7577 if (ret == QLA_ERROR) 7578 goto exit_ddb_login; 7579 7580 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7581 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7582 7583 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7584 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7585 fnode_sess->target_id); 7586 else 7587 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7588 fnode_sess->target_id); 7589 7590 if (ret > 0) 7591 ret = -EIO; 7592 7593 exit_ddb_login: 7594 if (fw_ddb_entry) 7595 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7596 fw_ddb_entry, fw_ddb_entry_dma); 7597 return ret; 7598 } 7599 7600 /** 7601 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7602 * @cls_sess: pointer to session to be logged out 7603 * 7604 * This performs session log out from the specified target 7605 **/ 7606 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7607 { 7608 struct iscsi_session *sess; 7609 struct ddb_entry *ddb_entry = NULL; 7610 struct scsi_qla_host *ha; 7611 struct dev_db_entry *fw_ddb_entry = NULL; 7612 dma_addr_t fw_ddb_entry_dma; 7613 unsigned long flags; 7614 unsigned long wtime; 7615 uint32_t ddb_state; 7616 int options; 7617 int ret = 0; 7618 7619 sess = cls_sess->dd_data; 7620 ddb_entry = sess->dd_data; 7621 ha = ddb_entry->ha; 7622 7623 if (ddb_entry->ddb_type != FLASH_DDB) { 7624 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7625 __func__); 7626 ret = -ENXIO; 7627 goto exit_ddb_logout; 7628 } 7629 7630 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7631 ql4_printk(KERN_ERR, ha, 7632 "%s: Logout from boot target entry is not permitted.\n", 7633 __func__); 7634 ret = -EPERM; 7635 goto exit_ddb_logout; 7636 } 7637 7638 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7639 &fw_ddb_entry_dma, GFP_KERNEL); 7640 if (!fw_ddb_entry) { 7641 ql4_printk(KERN_ERR, ha, 7642 "%s: Unable to allocate dma buffer\n", __func__); 7643 ret = -ENOMEM; 7644 goto exit_ddb_logout; 7645 } 7646 7647 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7648 goto ddb_logout_init; 7649 7650 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7651 fw_ddb_entry, fw_ddb_entry_dma, 7652 NULL, NULL, &ddb_state, NULL, 7653 NULL, NULL); 7654 if (ret == QLA_ERROR) 7655 goto ddb_logout_init; 7656 7657 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7658 goto ddb_logout_init; 7659 7660 /* wait until next relogin is triggered using DF_RELOGIN and 7661 * clear DF_RELOGIN to avoid invocation of further relogin 7662 */ 7663 wtime = jiffies + (HZ * RELOGIN_TOV); 7664 do { 7665 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7666 goto ddb_logout_init; 7667 7668 schedule_timeout_uninterruptible(HZ); 7669 } while ((time_after(wtime, jiffies))); 7670 7671 ddb_logout_init: 7672 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7673 atomic_set(&ddb_entry->relogin_timer, 0); 7674 7675 options = LOGOUT_OPTION_CLOSE_SESSION; 7676 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7677 7678 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7679 wtime = jiffies + (HZ * LOGOUT_TOV); 7680 do { 7681 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7682 fw_ddb_entry, fw_ddb_entry_dma, 7683 NULL, NULL, &ddb_state, NULL, 7684 NULL, NULL); 7685 if (ret == QLA_ERROR) 7686 goto ddb_logout_clr_sess; 7687 7688 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7689 (ddb_state == DDB_DS_SESSION_FAILED)) 7690 goto ddb_logout_clr_sess; 7691 7692 schedule_timeout_uninterruptible(HZ); 7693 } while ((time_after(wtime, jiffies))); 7694 7695 ddb_logout_clr_sess: 7696 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7697 /* 7698 * we have decremented the reference count of the driver 7699 * when we setup the session to have the driver unload 7700 * to be seamless without actually destroying the 7701 * session 7702 **/ 7703 try_module_get(qla4xxx_iscsi_transport.owner); 7704 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7705 7706 spin_lock_irqsave(&ha->hardware_lock, flags); 7707 qla4xxx_free_ddb(ha, ddb_entry); 7708 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7709 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7710 7711 iscsi_session_teardown(ddb_entry->sess); 7712 7713 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7714 ret = QLA_SUCCESS; 7715 7716 exit_ddb_logout: 7717 if (fw_ddb_entry) 7718 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7719 fw_ddb_entry, fw_ddb_entry_dma); 7720 return ret; 7721 } 7722 7723 /** 7724 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7725 * @fnode_sess: pointer to session attrs of flash ddb entry 7726 * @fnode_conn: pointer to connection attrs of flash ddb entry 7727 * 7728 * This performs log out from the specified target 7729 **/ 7730 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7731 struct iscsi_bus_flash_conn *fnode_conn) 7732 { 7733 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7734 struct scsi_qla_host *ha = to_qla_host(shost); 7735 struct ql4_tuple_ddb *flash_tddb = NULL; 7736 struct ql4_tuple_ddb *tmp_tddb = NULL; 7737 struct dev_db_entry *fw_ddb_entry = NULL; 7738 struct ddb_entry *ddb_entry = NULL; 7739 dma_addr_t fw_ddb_dma; 7740 uint32_t next_idx = 0; 7741 uint32_t state = 0, conn_err = 0; 7742 uint16_t conn_id = 0; 7743 int idx, index; 7744 int status, ret = 0; 7745 7746 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7747 &fw_ddb_dma); 7748 if (fw_ddb_entry == NULL) { 7749 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7750 ret = -ENOMEM; 7751 goto exit_ddb_logout; 7752 } 7753 7754 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7755 if (!flash_tddb) { 7756 ql4_printk(KERN_WARNING, ha, 7757 "%s:Memory Allocation failed.\n", __func__); 7758 ret = -ENOMEM; 7759 goto exit_ddb_logout; 7760 } 7761 7762 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7763 if (!tmp_tddb) { 7764 ql4_printk(KERN_WARNING, ha, 7765 "%s:Memory Allocation failed.\n", __func__); 7766 ret = -ENOMEM; 7767 goto exit_ddb_logout; 7768 } 7769 7770 if (!fnode_sess->targetname) { 7771 ql4_printk(KERN_ERR, ha, 7772 "%s:Cannot logout from SendTarget entry\n", 7773 __func__); 7774 ret = -EPERM; 7775 goto exit_ddb_logout; 7776 } 7777 7778 if (fnode_sess->is_boot_target) { 7779 ql4_printk(KERN_ERR, ha, 7780 "%s: Logout from boot target entry is not permitted.\n", 7781 __func__); 7782 ret = -EPERM; 7783 goto exit_ddb_logout; 7784 } 7785 7786 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7787 ISCSI_NAME_SIZE); 7788 7789 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7790 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7791 else 7792 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7793 7794 flash_tddb->tpgt = fnode_sess->tpgt; 7795 flash_tddb->port = fnode_conn->port; 7796 7797 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7798 7799 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7800 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7801 if (ddb_entry == NULL) 7802 continue; 7803 7804 if (ddb_entry->ddb_type != FLASH_DDB) 7805 continue; 7806 7807 index = ddb_entry->sess->target_id; 7808 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7809 fw_ddb_dma, NULL, &next_idx, 7810 &state, &conn_err, NULL, 7811 &conn_id); 7812 if (status == QLA_ERROR) { 7813 ret = -ENOMEM; 7814 break; 7815 } 7816 7817 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7818 7819 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7820 true); 7821 if (status == QLA_SUCCESS) { 7822 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7823 break; 7824 } 7825 } 7826 7827 if (idx == MAX_DDB_ENTRIES) 7828 ret = -ESRCH; 7829 7830 exit_ddb_logout: 7831 vfree(flash_tddb); 7832 vfree(tmp_tddb); 7833 if (fw_ddb_entry) 7834 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7835 7836 return ret; 7837 } 7838 7839 static int 7840 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7841 int param, char *buf) 7842 { 7843 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7844 struct scsi_qla_host *ha = to_qla_host(shost); 7845 struct iscsi_bus_flash_conn *fnode_conn; 7846 struct ql4_chap_table chap_tbl; 7847 struct device *dev; 7848 int parent_type; 7849 int rc = 0; 7850 7851 dev = iscsi_find_flashnode_conn(fnode_sess); 7852 if (!dev) 7853 return -EIO; 7854 7855 fnode_conn = iscsi_dev_to_flash_conn(dev); 7856 7857 switch (param) { 7858 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7859 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7860 break; 7861 case ISCSI_FLASHNODE_PORTAL_TYPE: 7862 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7863 break; 7864 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7865 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7866 break; 7867 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7868 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7869 break; 7870 case ISCSI_FLASHNODE_ENTRY_EN: 7871 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7872 break; 7873 case ISCSI_FLASHNODE_HDR_DGST_EN: 7874 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7875 break; 7876 case ISCSI_FLASHNODE_DATA_DGST_EN: 7877 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7878 break; 7879 case ISCSI_FLASHNODE_IMM_DATA_EN: 7880 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7881 break; 7882 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7883 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7884 break; 7885 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7886 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7887 break; 7888 case ISCSI_FLASHNODE_PDU_INORDER: 7889 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7890 break; 7891 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7892 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7893 break; 7894 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7895 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7896 break; 7897 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7898 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7899 break; 7900 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7901 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7902 break; 7903 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7904 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7905 break; 7906 case ISCSI_FLASHNODE_ERL: 7907 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7908 break; 7909 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7910 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7911 break; 7912 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7913 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7914 break; 7915 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7916 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7917 break; 7918 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7919 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7920 break; 7921 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7922 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7923 break; 7924 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7925 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7926 break; 7927 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7928 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7929 break; 7930 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7931 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7932 break; 7933 case ISCSI_FLASHNODE_FIRST_BURST: 7934 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7935 break; 7936 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7937 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7938 break; 7939 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7940 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7941 break; 7942 case ISCSI_FLASHNODE_MAX_R2T: 7943 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7944 break; 7945 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7946 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7947 break; 7948 case ISCSI_FLASHNODE_ISID: 7949 rc = sprintf(buf, "%pm\n", fnode_sess->isid); 7950 break; 7951 case ISCSI_FLASHNODE_TSID: 7952 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7953 break; 7954 case ISCSI_FLASHNODE_PORT: 7955 rc = sprintf(buf, "%d\n", fnode_conn->port); 7956 break; 7957 case ISCSI_FLASHNODE_MAX_BURST: 7958 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7959 break; 7960 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7961 rc = sprintf(buf, "%u\n", 7962 fnode_sess->default_taskmgmt_timeout); 7963 break; 7964 case ISCSI_FLASHNODE_IPADDR: 7965 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7966 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7967 else 7968 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7969 break; 7970 case ISCSI_FLASHNODE_ALIAS: 7971 if (fnode_sess->targetalias) 7972 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7973 else 7974 rc = sprintf(buf, "\n"); 7975 break; 7976 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7977 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7978 rc = sprintf(buf, "%pI6\n", 7979 fnode_conn->redirect_ipaddr); 7980 else 7981 rc = sprintf(buf, "%pI4\n", 7982 fnode_conn->redirect_ipaddr); 7983 break; 7984 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7985 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7986 break; 7987 case ISCSI_FLASHNODE_LOCAL_PORT: 7988 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 7989 break; 7990 case ISCSI_FLASHNODE_IPV4_TOS: 7991 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 7992 break; 7993 case ISCSI_FLASHNODE_IPV6_TC: 7994 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7995 rc = sprintf(buf, "%u\n", 7996 fnode_conn->ipv6_traffic_class); 7997 else 7998 rc = sprintf(buf, "\n"); 7999 break; 8000 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8001 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 8002 break; 8003 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8004 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 8005 rc = sprintf(buf, "%pI6\n", 8006 fnode_conn->link_local_ipv6_addr); 8007 else 8008 rc = sprintf(buf, "\n"); 8009 break; 8010 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8011 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 8012 break; 8013 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 8014 if (fnode_sess->discovery_parent_type == DDB_ISNS) 8015 parent_type = ISCSI_DISC_PARENT_ISNS; 8016 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 8017 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8018 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 8019 parent_type = ISCSI_DISC_PARENT_SENDTGT; 8020 else 8021 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8022 8023 rc = sprintf(buf, "%s\n", 8024 iscsi_get_discovery_parent_name(parent_type)); 8025 break; 8026 case ISCSI_FLASHNODE_NAME: 8027 if (fnode_sess->targetname) 8028 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 8029 else 8030 rc = sprintf(buf, "\n"); 8031 break; 8032 case ISCSI_FLASHNODE_TPGT: 8033 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 8034 break; 8035 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8036 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 8037 break; 8038 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8039 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 8040 break; 8041 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8042 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8043 break; 8044 case ISCSI_FLASHNODE_USERNAME: 8045 if (fnode_sess->chap_auth_en) { 8046 qla4xxx_get_uni_chap_at_index(ha, 8047 chap_tbl.name, 8048 chap_tbl.secret, 8049 fnode_sess->chap_out_idx); 8050 rc = sprintf(buf, "%s\n", chap_tbl.name); 8051 } else { 8052 rc = sprintf(buf, "\n"); 8053 } 8054 break; 8055 case ISCSI_FLASHNODE_PASSWORD: 8056 if (fnode_sess->chap_auth_en) { 8057 qla4xxx_get_uni_chap_at_index(ha, 8058 chap_tbl.name, 8059 chap_tbl.secret, 8060 fnode_sess->chap_out_idx); 8061 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8062 } else { 8063 rc = sprintf(buf, "\n"); 8064 } 8065 break; 8066 case ISCSI_FLASHNODE_STATSN: 8067 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8068 break; 8069 case ISCSI_FLASHNODE_EXP_STATSN: 8070 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8071 break; 8072 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8073 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8074 break; 8075 default: 8076 rc = -ENOSYS; 8077 break; 8078 } 8079 8080 put_device(dev); 8081 return rc; 8082 } 8083 8084 /** 8085 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8086 * @fnode_sess: pointer to session attrs of flash ddb entry 8087 * @fnode_conn: pointer to connection attrs of flash ddb entry 8088 * @data: Parameters and their values to update 8089 * @len: len of data 8090 * 8091 * This sets the parameter of flash ddb entry and writes them to flash 8092 **/ 8093 static int 8094 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8095 struct iscsi_bus_flash_conn *fnode_conn, 8096 void *data, int len) 8097 { 8098 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8099 struct scsi_qla_host *ha = to_qla_host(shost); 8100 struct iscsi_flashnode_param_info *fnode_param; 8101 struct ql4_chap_table chap_tbl; 8102 struct nlattr *attr; 8103 uint16_t chap_out_idx = INVALID_ENTRY; 8104 int rc = QLA_ERROR; 8105 uint32_t rem = len; 8106 8107 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8108 nla_for_each_attr(attr, data, len, rem) { 8109 fnode_param = nla_data(attr); 8110 8111 switch (fnode_param->param) { 8112 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8113 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8114 break; 8115 case ISCSI_FLASHNODE_PORTAL_TYPE: 8116 memcpy(fnode_sess->portal_type, fnode_param->value, 8117 strlen(fnode_sess->portal_type)); 8118 break; 8119 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8120 fnode_sess->auto_snd_tgt_disable = 8121 fnode_param->value[0]; 8122 break; 8123 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8124 fnode_sess->discovery_sess = fnode_param->value[0]; 8125 break; 8126 case ISCSI_FLASHNODE_ENTRY_EN: 8127 fnode_sess->entry_state = fnode_param->value[0]; 8128 break; 8129 case ISCSI_FLASHNODE_HDR_DGST_EN: 8130 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8131 break; 8132 case ISCSI_FLASHNODE_DATA_DGST_EN: 8133 fnode_conn->datadgst_en = fnode_param->value[0]; 8134 break; 8135 case ISCSI_FLASHNODE_IMM_DATA_EN: 8136 fnode_sess->imm_data_en = fnode_param->value[0]; 8137 break; 8138 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8139 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8140 break; 8141 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8142 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8143 break; 8144 case ISCSI_FLASHNODE_PDU_INORDER: 8145 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8146 break; 8147 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8148 fnode_sess->chap_auth_en = fnode_param->value[0]; 8149 /* Invalidate chap index if chap auth is disabled */ 8150 if (!fnode_sess->chap_auth_en) 8151 fnode_sess->chap_out_idx = INVALID_ENTRY; 8152 8153 break; 8154 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8155 fnode_conn->snack_req_en = fnode_param->value[0]; 8156 break; 8157 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8158 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8159 break; 8160 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8161 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8162 break; 8163 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8164 fnode_sess->discovery_auth_optional = 8165 fnode_param->value[0]; 8166 break; 8167 case ISCSI_FLASHNODE_ERL: 8168 fnode_sess->erl = fnode_param->value[0]; 8169 break; 8170 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8171 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8172 break; 8173 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8174 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8175 break; 8176 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8177 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8178 break; 8179 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8180 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8181 break; 8182 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8183 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8184 break; 8185 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8186 fnode_conn->fragment_disable = fnode_param->value[0]; 8187 break; 8188 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8189 fnode_conn->max_recv_dlength = 8190 *(unsigned *)fnode_param->value; 8191 break; 8192 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8193 fnode_conn->max_xmit_dlength = 8194 *(unsigned *)fnode_param->value; 8195 break; 8196 case ISCSI_FLASHNODE_FIRST_BURST: 8197 fnode_sess->first_burst = 8198 *(unsigned *)fnode_param->value; 8199 break; 8200 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8201 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8202 break; 8203 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8204 fnode_sess->time2retain = 8205 *(uint16_t *)fnode_param->value; 8206 break; 8207 case ISCSI_FLASHNODE_MAX_R2T: 8208 fnode_sess->max_r2t = 8209 *(uint16_t *)fnode_param->value; 8210 break; 8211 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8212 fnode_conn->keepalive_timeout = 8213 *(uint16_t *)fnode_param->value; 8214 break; 8215 case ISCSI_FLASHNODE_ISID: 8216 memcpy(fnode_sess->isid, fnode_param->value, 8217 sizeof(fnode_sess->isid)); 8218 break; 8219 case ISCSI_FLASHNODE_TSID: 8220 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8221 break; 8222 case ISCSI_FLASHNODE_PORT: 8223 fnode_conn->port = *(uint16_t *)fnode_param->value; 8224 break; 8225 case ISCSI_FLASHNODE_MAX_BURST: 8226 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8227 break; 8228 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8229 fnode_sess->default_taskmgmt_timeout = 8230 *(uint16_t *)fnode_param->value; 8231 break; 8232 case ISCSI_FLASHNODE_IPADDR: 8233 memcpy(fnode_conn->ipaddress, fnode_param->value, 8234 IPv6_ADDR_LEN); 8235 break; 8236 case ISCSI_FLASHNODE_ALIAS: 8237 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8238 (char *)fnode_param->value); 8239 break; 8240 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8241 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8242 IPv6_ADDR_LEN); 8243 break; 8244 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8245 fnode_conn->max_segment_size = 8246 *(unsigned *)fnode_param->value; 8247 break; 8248 case ISCSI_FLASHNODE_LOCAL_PORT: 8249 fnode_conn->local_port = 8250 *(uint16_t *)fnode_param->value; 8251 break; 8252 case ISCSI_FLASHNODE_IPV4_TOS: 8253 fnode_conn->ipv4_tos = fnode_param->value[0]; 8254 break; 8255 case ISCSI_FLASHNODE_IPV6_TC: 8256 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8257 break; 8258 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8259 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8260 break; 8261 case ISCSI_FLASHNODE_NAME: 8262 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8263 (char *)fnode_param->value); 8264 break; 8265 case ISCSI_FLASHNODE_TPGT: 8266 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8267 break; 8268 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8269 memcpy(fnode_conn->link_local_ipv6_addr, 8270 fnode_param->value, IPv6_ADDR_LEN); 8271 break; 8272 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8273 fnode_sess->discovery_parent_idx = 8274 *(uint16_t *)fnode_param->value; 8275 break; 8276 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8277 fnode_conn->tcp_xmit_wsf = 8278 *(uint8_t *)fnode_param->value; 8279 break; 8280 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8281 fnode_conn->tcp_recv_wsf = 8282 *(uint8_t *)fnode_param->value; 8283 break; 8284 case ISCSI_FLASHNODE_STATSN: 8285 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8286 break; 8287 case ISCSI_FLASHNODE_EXP_STATSN: 8288 fnode_conn->exp_statsn = 8289 *(uint32_t *)fnode_param->value; 8290 break; 8291 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8292 chap_out_idx = *(uint16_t *)fnode_param->value; 8293 if (!qla4xxx_get_uni_chap_at_index(ha, 8294 chap_tbl.name, 8295 chap_tbl.secret, 8296 chap_out_idx)) { 8297 fnode_sess->chap_out_idx = chap_out_idx; 8298 /* Enable chap auth if chap index is valid */ 8299 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8300 } 8301 break; 8302 default: 8303 ql4_printk(KERN_ERR, ha, 8304 "%s: No such sysfs attribute\n", __func__); 8305 rc = -ENOSYS; 8306 goto exit_set_param; 8307 } 8308 } 8309 8310 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8311 8312 exit_set_param: 8313 return rc; 8314 } 8315 8316 /** 8317 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8318 * @fnode_sess: pointer to session attrs of flash ddb entry 8319 * 8320 * This invalidates the flash ddb entry at the given index 8321 **/ 8322 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8323 { 8324 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8325 struct scsi_qla_host *ha = to_qla_host(shost); 8326 uint32_t dev_db_start_offset; 8327 uint32_t dev_db_end_offset; 8328 struct dev_db_entry *fw_ddb_entry = NULL; 8329 dma_addr_t fw_ddb_entry_dma; 8330 uint16_t *ddb_cookie = NULL; 8331 size_t ddb_size = 0; 8332 void *pddb = NULL; 8333 int target_id; 8334 int rc = 0; 8335 8336 if (fnode_sess->is_boot_target) { 8337 rc = -EPERM; 8338 DEBUG2(ql4_printk(KERN_ERR, ha, 8339 "%s: Deletion of boot target entry is not permitted.\n", 8340 __func__)); 8341 goto exit_ddb_del; 8342 } 8343 8344 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8345 goto sysfs_ddb_del; 8346 8347 if (is_qla40XX(ha)) { 8348 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8349 dev_db_end_offset = FLASH_OFFSET_DB_END; 8350 dev_db_start_offset += (fnode_sess->target_id * 8351 sizeof(*fw_ddb_entry)); 8352 ddb_size = sizeof(*fw_ddb_entry); 8353 } else { 8354 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8355 (ha->hw.flt_region_ddb << 2); 8356 /* flt_ddb_size is DDB table size for both ports 8357 * so divide it by 2 to calculate the offset for second port 8358 */ 8359 if (ha->port_num == 1) 8360 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8361 8362 dev_db_end_offset = dev_db_start_offset + 8363 (ha->hw.flt_ddb_size / 2); 8364 8365 dev_db_start_offset += (fnode_sess->target_id * 8366 sizeof(*fw_ddb_entry)); 8367 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8368 8369 ddb_size = sizeof(*ddb_cookie); 8370 } 8371 8372 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8373 __func__, dev_db_start_offset, dev_db_end_offset)); 8374 8375 if (dev_db_start_offset > dev_db_end_offset) { 8376 rc = -EIO; 8377 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8378 __func__, fnode_sess->target_id)); 8379 goto exit_ddb_del; 8380 } 8381 8382 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8383 &fw_ddb_entry_dma, GFP_KERNEL); 8384 if (!pddb) { 8385 rc = -ENOMEM; 8386 DEBUG2(ql4_printk(KERN_ERR, ha, 8387 "%s: Unable to allocate dma buffer\n", 8388 __func__)); 8389 goto exit_ddb_del; 8390 } 8391 8392 if (is_qla40XX(ha)) { 8393 fw_ddb_entry = pddb; 8394 memset(fw_ddb_entry, 0, ddb_size); 8395 ddb_cookie = &fw_ddb_entry->cookie; 8396 } else { 8397 ddb_cookie = pddb; 8398 } 8399 8400 /* invalidate the cookie */ 8401 *ddb_cookie = 0xFFEE; 8402 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8403 ddb_size, FLASH_OPT_RMW_COMMIT); 8404 8405 sysfs_ddb_del: 8406 target_id = fnode_sess->target_id; 8407 iscsi_destroy_flashnode_sess(fnode_sess); 8408 ql4_printk(KERN_INFO, ha, 8409 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8410 __func__, target_id, ha->host_no); 8411 exit_ddb_del: 8412 if (pddb) 8413 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8414 fw_ddb_entry_dma); 8415 return rc; 8416 } 8417 8418 /** 8419 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8420 * @ha: pointer to adapter structure 8421 * 8422 * Export the firmware DDB for all send targets and normal targets to sysfs. 8423 **/ 8424 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8425 { 8426 struct dev_db_entry *fw_ddb_entry = NULL; 8427 dma_addr_t fw_ddb_entry_dma; 8428 uint16_t max_ddbs; 8429 uint16_t idx = 0; 8430 int ret = QLA_SUCCESS; 8431 8432 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8433 sizeof(*fw_ddb_entry), 8434 &fw_ddb_entry_dma, GFP_KERNEL); 8435 if (!fw_ddb_entry) { 8436 DEBUG2(ql4_printk(KERN_ERR, ha, 8437 "%s: Unable to allocate dma buffer\n", 8438 __func__)); 8439 return -ENOMEM; 8440 } 8441 8442 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8443 MAX_DEV_DB_ENTRIES; 8444 8445 for (idx = 0; idx < max_ddbs; idx++) { 8446 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8447 idx)) 8448 continue; 8449 8450 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8451 if (ret) { 8452 ret = -EIO; 8453 break; 8454 } 8455 } 8456 8457 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8458 fw_ddb_entry_dma); 8459 8460 return ret; 8461 } 8462 8463 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8464 { 8465 iscsi_destroy_all_flashnode(ha->host); 8466 } 8467 8468 /** 8469 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8470 * @ha: pointer to adapter structure 8471 * @is_reset: Is this init path or reset path 8472 * 8473 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8474 * using connection open, then create the list of normal targets (nt) 8475 * from firmware DDBs. Based on the list of nt setup session and connection 8476 * objects. 8477 **/ 8478 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8479 { 8480 uint16_t tmo = 0; 8481 struct list_head list_st, list_nt; 8482 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8483 unsigned long wtime; 8484 8485 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8486 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8487 ha->is_reset = is_reset; 8488 return; 8489 } 8490 8491 INIT_LIST_HEAD(&list_st); 8492 INIT_LIST_HEAD(&list_nt); 8493 8494 qla4xxx_build_st_list(ha, &list_st); 8495 8496 /* Before issuing conn open mbox, ensure all IPs states are configured 8497 * Note, conn open fails if IPs are not configured 8498 */ 8499 qla4xxx_wait_for_ip_configuration(ha); 8500 8501 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8502 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8503 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8504 } 8505 8506 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8507 tmo = ((ha->def_timeout > LOGIN_TOV) && 8508 (ha->def_timeout < LOGIN_TOV * 10) ? 8509 ha->def_timeout : LOGIN_TOV); 8510 8511 DEBUG2(ql4_printk(KERN_INFO, ha, 8512 "Default time to wait for build ddb %d\n", tmo)); 8513 8514 wtime = jiffies + (HZ * tmo); 8515 do { 8516 if (list_empty(&list_st)) 8517 break; 8518 8519 qla4xxx_remove_failed_ddb(ha, &list_st); 8520 schedule_timeout_uninterruptible(HZ / 10); 8521 } while (time_after(wtime, jiffies)); 8522 8523 8524 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8525 8526 qla4xxx_free_ddb_list(&list_st); 8527 qla4xxx_free_ddb_list(&list_nt); 8528 8529 qla4xxx_free_ddb_index(ha); 8530 } 8531 8532 /** 8533 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8534 * response. 8535 * @ha: pointer to adapter structure 8536 * 8537 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8538 * set in DDB and we will wait for login response of boot targets during 8539 * probe. 8540 **/ 8541 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8542 { 8543 struct ddb_entry *ddb_entry; 8544 struct dev_db_entry *fw_ddb_entry = NULL; 8545 dma_addr_t fw_ddb_entry_dma; 8546 unsigned long wtime; 8547 uint32_t ddb_state; 8548 int max_ddbs, idx, ret; 8549 8550 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8551 MAX_DEV_DB_ENTRIES; 8552 8553 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8554 &fw_ddb_entry_dma, GFP_KERNEL); 8555 if (!fw_ddb_entry) { 8556 ql4_printk(KERN_ERR, ha, 8557 "%s: Unable to allocate dma buffer\n", __func__); 8558 goto exit_login_resp; 8559 } 8560 8561 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8562 8563 for (idx = 0; idx < max_ddbs; idx++) { 8564 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8565 if (ddb_entry == NULL) 8566 continue; 8567 8568 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8569 DEBUG2(ql4_printk(KERN_INFO, ha, 8570 "%s: DDB index [%d]\n", __func__, 8571 ddb_entry->fw_ddb_index)); 8572 do { 8573 ret = qla4xxx_get_fwddb_entry(ha, 8574 ddb_entry->fw_ddb_index, 8575 fw_ddb_entry, fw_ddb_entry_dma, 8576 NULL, NULL, &ddb_state, NULL, 8577 NULL, NULL); 8578 if (ret == QLA_ERROR) 8579 goto exit_login_resp; 8580 8581 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8582 (ddb_state == DDB_DS_SESSION_FAILED)) 8583 break; 8584 8585 schedule_timeout_uninterruptible(HZ); 8586 8587 } while ((time_after(wtime, jiffies))); 8588 8589 if (!time_after(wtime, jiffies)) { 8590 DEBUG2(ql4_printk(KERN_INFO, ha, 8591 "%s: Login response wait timer expired\n", 8592 __func__)); 8593 goto exit_login_resp; 8594 } 8595 } 8596 } 8597 8598 exit_login_resp: 8599 if (fw_ddb_entry) 8600 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8601 fw_ddb_entry, fw_ddb_entry_dma); 8602 } 8603 8604 /** 8605 * qla4xxx_probe_adapter - callback function to probe HBA 8606 * @pdev: pointer to pci_dev structure 8607 * @ent: pointer to pci_device entry 8608 * 8609 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8610 * It returns zero if successful. It also initializes all data necessary for 8611 * the driver. 8612 **/ 8613 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8614 const struct pci_device_id *ent) 8615 { 8616 int ret = -ENODEV, status; 8617 struct Scsi_Host *host; 8618 struct scsi_qla_host *ha; 8619 uint8_t init_retry_count = 0; 8620 char buf[34]; 8621 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8622 uint32_t dev_state; 8623 8624 if (pci_enable_device(pdev)) 8625 return -1; 8626 8627 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8628 if (host == NULL) { 8629 printk(KERN_WARNING 8630 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8631 goto probe_disable_device; 8632 } 8633 8634 /* Clear our data area */ 8635 ha = to_qla_host(host); 8636 memset(ha, 0, sizeof(*ha)); 8637 8638 /* Save the information from PCI BIOS. */ 8639 ha->pdev = pdev; 8640 ha->host = host; 8641 ha->host_no = host->host_no; 8642 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8643 8644 pci_enable_pcie_error_reporting(pdev); 8645 8646 /* Setup Runtime configurable options */ 8647 if (is_qla8022(ha)) { 8648 ha->isp_ops = &qla4_82xx_isp_ops; 8649 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8650 ha->qdr_sn_window = -1; 8651 ha->ddr_mn_window = -1; 8652 ha->curr_window = 255; 8653 nx_legacy_intr = &legacy_intr[ha->func_num]; 8654 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8655 ha->nx_legacy_intr.tgt_status_reg = 8656 nx_legacy_intr->tgt_status_reg; 8657 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8658 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8659 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8660 ha->isp_ops = &qla4_83xx_isp_ops; 8661 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8662 } else { 8663 ha->isp_ops = &qla4xxx_isp_ops; 8664 } 8665 8666 if (is_qla80XX(ha)) { 8667 rwlock_init(&ha->hw_lock); 8668 ha->pf_bit = ha->func_num << 16; 8669 /* Set EEH reset type to fundamental if required by hba */ 8670 pdev->needs_freset = 1; 8671 } 8672 8673 /* Configure PCI I/O space. */ 8674 ret = ha->isp_ops->iospace_config(ha); 8675 if (ret) 8676 goto probe_failed_ioconfig; 8677 8678 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8679 pdev->device, pdev->irq, ha->reg); 8680 8681 qla4xxx_config_dma_addressing(ha); 8682 8683 /* Initialize lists and spinlocks. */ 8684 INIT_LIST_HEAD(&ha->free_srb_q); 8685 8686 mutex_init(&ha->mbox_sem); 8687 mutex_init(&ha->chap_sem); 8688 init_completion(&ha->mbx_intr_comp); 8689 init_completion(&ha->disable_acb_comp); 8690 init_completion(&ha->idc_comp); 8691 init_completion(&ha->link_up_comp); 8692 8693 spin_lock_init(&ha->hardware_lock); 8694 spin_lock_init(&ha->work_lock); 8695 8696 /* Initialize work list */ 8697 INIT_LIST_HEAD(&ha->work_list); 8698 8699 /* Allocate dma buffers */ 8700 if (qla4xxx_mem_alloc(ha)) { 8701 ql4_printk(KERN_WARNING, ha, 8702 "[ERROR] Failed to allocate memory for adapter\n"); 8703 8704 ret = -ENOMEM; 8705 goto probe_failed; 8706 } 8707 8708 host->cmd_per_lun = 3; 8709 host->max_channel = 0; 8710 host->max_lun = MAX_LUNS - 1; 8711 host->max_id = MAX_TARGETS; 8712 host->max_cmd_len = IOCB_MAX_CDB_LEN; 8713 host->can_queue = MAX_SRBS ; 8714 host->transportt = qla4xxx_scsi_transport; 8715 8716 pci_set_drvdata(pdev, ha); 8717 8718 ret = scsi_add_host(host, &pdev->dev); 8719 if (ret) 8720 goto probe_failed; 8721 8722 if (is_qla80XX(ha)) 8723 qla4_8xxx_get_flash_info(ha); 8724 8725 if (is_qla8032(ha) || is_qla8042(ha)) { 8726 qla4_83xx_read_reset_template(ha); 8727 /* 8728 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8729 * If DONRESET_BIT0 is set, drivers should not set dev_state 8730 * to NEED_RESET. But if NEED_RESET is set, drivers should 8731 * should honor the reset. 8732 */ 8733 if (ql4xdontresethba == 1) 8734 qla4_83xx_set_idc_dontreset(ha); 8735 } 8736 8737 /* 8738 * Initialize the Host adapter request/response queues and 8739 * firmware 8740 * NOTE: interrupts enabled upon successful completion 8741 */ 8742 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8743 8744 /* Dont retry adapter initialization if IRQ allocation failed */ 8745 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8746 goto skip_retry_init; 8747 8748 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8749 init_retry_count++ < MAX_INIT_RETRIES) { 8750 8751 if (is_qla80XX(ha)) { 8752 ha->isp_ops->idc_lock(ha); 8753 dev_state = qla4_8xxx_rd_direct(ha, 8754 QLA8XXX_CRB_DEV_STATE); 8755 ha->isp_ops->idc_unlock(ha); 8756 if (dev_state == QLA8XXX_DEV_FAILED) { 8757 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8758 "initialize adapter. H/W is in failed state\n", 8759 __func__); 8760 break; 8761 } 8762 } 8763 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8764 "(%d)\n", __func__, init_retry_count)); 8765 8766 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8767 continue; 8768 8769 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8770 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8771 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8772 goto skip_retry_init; 8773 } 8774 } 8775 8776 skip_retry_init: 8777 if (!test_bit(AF_ONLINE, &ha->flags)) { 8778 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8779 8780 if ((is_qla8022(ha) && ql4xdontresethba) || 8781 ((is_qla8032(ha) || is_qla8042(ha)) && 8782 qla4_83xx_idc_dontreset(ha))) { 8783 /* Put the device in failed state. */ 8784 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8785 ha->isp_ops->idc_lock(ha); 8786 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8787 QLA8XXX_DEV_FAILED); 8788 ha->isp_ops->idc_unlock(ha); 8789 } 8790 ret = -ENODEV; 8791 goto remove_host; 8792 } 8793 8794 /* Startup the kernel thread for this host adapter. */ 8795 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8796 "qla4xxx_dpc\n", __func__)); 8797 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8798 ha->dpc_thread = create_singlethread_workqueue(buf); 8799 if (!ha->dpc_thread) { 8800 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8801 ret = -ENODEV; 8802 goto remove_host; 8803 } 8804 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8805 8806 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8807 ha->host_no); 8808 if (!ha->task_wq) { 8809 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8810 ret = -ENODEV; 8811 goto remove_host; 8812 } 8813 8814 /* 8815 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8816 * (which is called indirectly by qla4xxx_initialize_adapter), 8817 * so that irqs will be registered after crbinit but before 8818 * mbx_intr_enable. 8819 */ 8820 if (is_qla40XX(ha)) { 8821 ret = qla4xxx_request_irqs(ha); 8822 if (ret) { 8823 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8824 "interrupt %d already in use.\n", pdev->irq); 8825 goto remove_host; 8826 } 8827 } 8828 8829 pci_save_state(ha->pdev); 8830 ha->isp_ops->enable_intrs(ha); 8831 8832 /* Start timer thread. */ 8833 qla4xxx_start_timer(ha, 1); 8834 8835 set_bit(AF_INIT_DONE, &ha->flags); 8836 8837 qla4_8xxx_alloc_sysfs_attr(ha); 8838 8839 printk(KERN_INFO 8840 " QLogic iSCSI HBA Driver version: %s\n" 8841 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8842 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8843 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8844 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8845 8846 /* Set the driver version */ 8847 if (is_qla80XX(ha)) 8848 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8849 8850 if (qla4xxx_setup_boot_info(ha)) 8851 ql4_printk(KERN_ERR, ha, 8852 "%s: No iSCSI boot target configured\n", __func__); 8853 8854 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags); 8855 /* Perform the build ddb list and login to each */ 8856 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8857 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8858 qla4xxx_wait_login_resp_boot_tgt(ha); 8859 8860 qla4xxx_create_chap_list(ha); 8861 8862 qla4xxx_create_ifaces(ha); 8863 return 0; 8864 8865 remove_host: 8866 scsi_remove_host(ha->host); 8867 8868 probe_failed: 8869 qla4xxx_free_adapter(ha); 8870 8871 probe_failed_ioconfig: 8872 pci_disable_pcie_error_reporting(pdev); 8873 scsi_host_put(ha->host); 8874 8875 probe_disable_device: 8876 pci_disable_device(pdev); 8877 8878 return ret; 8879 } 8880 8881 /** 8882 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8883 * @ha: pointer to adapter structure 8884 * 8885 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8886 * so that the other port will not re-initialize while in the process of 8887 * removing the ha due to driver unload or hba hotplug. 8888 **/ 8889 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8890 { 8891 struct scsi_qla_host *other_ha = NULL; 8892 struct pci_dev *other_pdev = NULL; 8893 int fn = ISP4XXX_PCI_FN_2; 8894 8895 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8896 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8897 fn = ISP4XXX_PCI_FN_1; 8898 8899 other_pdev = 8900 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8901 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8902 fn)); 8903 8904 /* Get other_ha if other_pdev is valid and state is enable*/ 8905 if (other_pdev) { 8906 if (atomic_read(&other_pdev->enable_cnt)) { 8907 other_ha = pci_get_drvdata(other_pdev); 8908 if (other_ha) { 8909 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8910 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8911 "Prevent %s reinit\n", __func__, 8912 dev_name(&other_ha->pdev->dev))); 8913 } 8914 } 8915 pci_dev_put(other_pdev); 8916 } 8917 } 8918 8919 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8920 struct ddb_entry *ddb_entry) 8921 { 8922 struct dev_db_entry *fw_ddb_entry = NULL; 8923 dma_addr_t fw_ddb_entry_dma; 8924 unsigned long wtime; 8925 uint32_t ddb_state; 8926 int options; 8927 int status; 8928 8929 options = LOGOUT_OPTION_CLOSE_SESSION; 8930 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8931 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8932 goto clear_ddb; 8933 } 8934 8935 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8936 &fw_ddb_entry_dma, GFP_KERNEL); 8937 if (!fw_ddb_entry) { 8938 ql4_printk(KERN_ERR, ha, 8939 "%s: Unable to allocate dma buffer\n", __func__); 8940 goto clear_ddb; 8941 } 8942 8943 wtime = jiffies + (HZ * LOGOUT_TOV); 8944 do { 8945 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8946 fw_ddb_entry, fw_ddb_entry_dma, 8947 NULL, NULL, &ddb_state, NULL, 8948 NULL, NULL); 8949 if (status == QLA_ERROR) 8950 goto free_ddb; 8951 8952 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8953 (ddb_state == DDB_DS_SESSION_FAILED)) 8954 goto free_ddb; 8955 8956 schedule_timeout_uninterruptible(HZ); 8957 } while ((time_after(wtime, jiffies))); 8958 8959 free_ddb: 8960 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8961 fw_ddb_entry, fw_ddb_entry_dma); 8962 clear_ddb: 8963 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8964 } 8965 8966 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8967 { 8968 struct ddb_entry *ddb_entry; 8969 int idx; 8970 8971 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8972 8973 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8974 if ((ddb_entry != NULL) && 8975 (ddb_entry->ddb_type == FLASH_DDB)) { 8976 8977 qla4xxx_destroy_ddb(ha, ddb_entry); 8978 /* 8979 * we have decremented the reference count of the driver 8980 * when we setup the session to have the driver unload 8981 * to be seamless without actually destroying the 8982 * session 8983 **/ 8984 try_module_get(qla4xxx_iscsi_transport.owner); 8985 iscsi_destroy_endpoint(ddb_entry->conn->ep); 8986 qla4xxx_free_ddb(ha, ddb_entry); 8987 iscsi_session_teardown(ddb_entry->sess); 8988 } 8989 } 8990 } 8991 /** 8992 * qla4xxx_remove_adapter - callback function to remove adapter. 8993 * @pdev: PCI device pointer 8994 **/ 8995 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 8996 { 8997 struct scsi_qla_host *ha; 8998 8999 /* 9000 * If the PCI device is disabled then it means probe_adapter had 9001 * failed and resources already cleaned up on probe_adapter exit. 9002 */ 9003 if (!pci_is_enabled(pdev)) 9004 return; 9005 9006 ha = pci_get_drvdata(pdev); 9007 9008 if (is_qla40XX(ha)) 9009 qla4xxx_prevent_other_port_reinit(ha); 9010 9011 /* destroy iface from sysfs */ 9012 qla4xxx_destroy_ifaces(ha); 9013 9014 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 9015 iscsi_boot_destroy_kset(ha->boot_kset); 9016 9017 qla4xxx_destroy_fw_ddb_session(ha); 9018 qla4_8xxx_free_sysfs_attr(ha); 9019 9020 qla4xxx_sysfs_ddb_remove(ha); 9021 scsi_remove_host(ha->host); 9022 9023 qla4xxx_free_adapter(ha); 9024 9025 scsi_host_put(ha->host); 9026 9027 pci_disable_pcie_error_reporting(pdev); 9028 pci_disable_device(pdev); 9029 } 9030 9031 /** 9032 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9033 * @ha: HA context 9034 */ 9035 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9036 { 9037 /* Update our PCI device dma_mask for full 64 bit mask */ 9038 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) { 9039 dev_dbg(&ha->pdev->dev, 9040 "Failed to set 64 bit PCI consistent mask; " 9041 "using 32 bit.\n"); 9042 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32)); 9043 } 9044 } 9045 9046 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 9047 { 9048 struct iscsi_cls_session *cls_sess; 9049 struct iscsi_session *sess; 9050 struct ddb_entry *ddb; 9051 int queue_depth = QL4_DEF_QDEPTH; 9052 9053 cls_sess = starget_to_session(sdev->sdev_target); 9054 sess = cls_sess->dd_data; 9055 ddb = sess->dd_data; 9056 9057 sdev->hostdata = ddb; 9058 9059 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9060 queue_depth = ql4xmaxqdepth; 9061 9062 scsi_change_queue_depth(sdev, queue_depth); 9063 return 0; 9064 } 9065 9066 /** 9067 * qla4xxx_del_from_active_array - returns an active srb 9068 * @ha: Pointer to host adapter structure. 9069 * @index: index into the active_array 9070 * 9071 * This routine removes and returns the srb at the specified index 9072 **/ 9073 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9074 uint32_t index) 9075 { 9076 struct srb *srb = NULL; 9077 struct scsi_cmnd *cmd = NULL; 9078 9079 cmd = scsi_host_find_tag(ha->host, index); 9080 if (!cmd) 9081 return srb; 9082 9083 srb = qla4xxx_cmd_priv(cmd)->srb; 9084 if (!srb) 9085 return srb; 9086 9087 /* update counters */ 9088 if (srb->flags & SRB_DMA_VALID) { 9089 ha->iocb_cnt -= srb->iocb_cnt; 9090 if (srb->cmd) 9091 srb->cmd->host_scribble = 9092 (unsigned char *)(unsigned long) MAX_SRBS; 9093 } 9094 return srb; 9095 } 9096 9097 /** 9098 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9099 * @ha: Pointer to host adapter structure. 9100 * @cmd: Scsi Command to wait on. 9101 * 9102 * This routine waits for the command to be returned by the Firmware 9103 * for some max time. 9104 **/ 9105 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9106 struct scsi_cmnd *cmd) 9107 { 9108 int done = 0; 9109 struct srb *rp; 9110 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9111 int ret = SUCCESS; 9112 9113 /* Dont wait on command if PCI error is being handled 9114 * by PCI AER driver 9115 */ 9116 if (unlikely(pci_channel_offline(ha->pdev)) || 9117 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9118 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9119 ha->host_no, __func__); 9120 return ret; 9121 } 9122 9123 do { 9124 /* Checking to see if its returned to OS */ 9125 rp = qla4xxx_cmd_priv(cmd)->srb; 9126 if (rp == NULL) { 9127 done++; 9128 break; 9129 } 9130 9131 msleep(2000); 9132 } while (max_wait_time--); 9133 9134 return done; 9135 } 9136 9137 /** 9138 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9139 * @ha: Pointer to host adapter structure 9140 **/ 9141 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9142 { 9143 unsigned long wait_online; 9144 9145 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9146 while (time_before(jiffies, wait_online)) { 9147 9148 if (adapter_up(ha)) 9149 return QLA_SUCCESS; 9150 9151 msleep(2000); 9152 } 9153 9154 return QLA_ERROR; 9155 } 9156 9157 /** 9158 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9159 * @ha: pointer to HBA 9160 * @stgt: pointer to SCSI target 9161 * @sdev: pointer to SCSI device 9162 * 9163 * This function waits for all outstanding commands to a lun to complete. It 9164 * returns 0 if all pending commands are returned and 1 otherwise. 9165 **/ 9166 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9167 struct scsi_target *stgt, 9168 struct scsi_device *sdev) 9169 { 9170 int cnt; 9171 int status = 0; 9172 struct scsi_cmnd *cmd; 9173 9174 /* 9175 * Waiting for all commands for the designated target or dev 9176 * in the active array 9177 */ 9178 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9179 cmd = scsi_host_find_tag(ha->host, cnt); 9180 if (cmd && stgt == scsi_target(cmd->device) && 9181 (!sdev || sdev == cmd->device)) { 9182 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9183 status++; 9184 break; 9185 } 9186 } 9187 } 9188 return status; 9189 } 9190 9191 /** 9192 * qla4xxx_eh_abort - callback for abort task. 9193 * @cmd: Pointer to Linux's SCSI command structure 9194 * 9195 * This routine is called by the Linux OS to abort the specified 9196 * command. 9197 **/ 9198 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9199 { 9200 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9201 unsigned int id = cmd->device->id; 9202 uint64_t lun = cmd->device->lun; 9203 unsigned long flags; 9204 struct srb *srb = NULL; 9205 int ret = SUCCESS; 9206 int wait = 0; 9207 int rval; 9208 9209 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n", 9210 ha->host_no, id, lun, cmd, cmd->cmnd[0]); 9211 9212 rval = qla4xxx_isp_check_reg(ha); 9213 if (rval != QLA_SUCCESS) { 9214 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9215 return FAILED; 9216 } 9217 9218 spin_lock_irqsave(&ha->hardware_lock, flags); 9219 srb = qla4xxx_cmd_priv(cmd)->srb; 9220 if (!srb) { 9221 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9222 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n", 9223 ha->host_no, id, lun); 9224 return SUCCESS; 9225 } 9226 kref_get(&srb->srb_ref); 9227 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9228 9229 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9230 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n", 9231 ha->host_no, id, lun)); 9232 ret = FAILED; 9233 } else { 9234 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n", 9235 ha->host_no, id, lun)); 9236 wait = 1; 9237 } 9238 9239 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9240 9241 /* Wait for command to complete */ 9242 if (wait) { 9243 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9244 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n", 9245 ha->host_no, id, lun)); 9246 ret = FAILED; 9247 } 9248 } 9249 9250 ql4_printk(KERN_INFO, ha, 9251 "scsi%ld:%d:%llu: Abort command - %s\n", 9252 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9253 9254 return ret; 9255 } 9256 9257 /** 9258 * qla4xxx_eh_device_reset - callback for target reset. 9259 * @cmd: Pointer to Linux's SCSI command structure 9260 * 9261 * This routine is called by the Linux OS to reset all luns on the 9262 * specified target. 9263 **/ 9264 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9265 { 9266 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9267 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9268 int ret = FAILED, stat; 9269 int rval; 9270 9271 if (!ddb_entry) 9272 return ret; 9273 9274 ret = iscsi_block_scsi_eh(cmd); 9275 if (ret) 9276 return ret; 9277 ret = FAILED; 9278 9279 ql4_printk(KERN_INFO, ha, 9280 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no, 9281 cmd->device->channel, cmd->device->id, cmd->device->lun); 9282 9283 DEBUG2(printk(KERN_INFO 9284 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9285 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9286 cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ, 9287 ha->dpc_flags, cmd->result, cmd->allowed)); 9288 9289 rval = qla4xxx_isp_check_reg(ha); 9290 if (rval != QLA_SUCCESS) { 9291 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9292 return FAILED; 9293 } 9294 9295 /* FIXME: wait for hba to go online */ 9296 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9297 if (stat != QLA_SUCCESS) { 9298 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9299 goto eh_dev_reset_done; 9300 } 9301 9302 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9303 cmd->device)) { 9304 ql4_printk(KERN_INFO, ha, 9305 "DEVICE RESET FAILED - waiting for " 9306 "commands.\n"); 9307 goto eh_dev_reset_done; 9308 } 9309 9310 /* Send marker. */ 9311 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9312 MM_LUN_RESET) != QLA_SUCCESS) 9313 goto eh_dev_reset_done; 9314 9315 ql4_printk(KERN_INFO, ha, 9316 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n", 9317 ha->host_no, cmd->device->channel, cmd->device->id, 9318 cmd->device->lun); 9319 9320 ret = SUCCESS; 9321 9322 eh_dev_reset_done: 9323 9324 return ret; 9325 } 9326 9327 /** 9328 * qla4xxx_eh_target_reset - callback for target reset. 9329 * @cmd: Pointer to Linux's SCSI command structure 9330 * 9331 * This routine is called by the Linux OS to reset the target. 9332 **/ 9333 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9334 { 9335 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9336 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9337 int stat, ret; 9338 int rval; 9339 9340 if (!ddb_entry) 9341 return FAILED; 9342 9343 ret = iscsi_block_scsi_eh(cmd); 9344 if (ret) 9345 return ret; 9346 9347 starget_printk(KERN_INFO, scsi_target(cmd->device), 9348 "WARM TARGET RESET ISSUED.\n"); 9349 9350 DEBUG2(printk(KERN_INFO 9351 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9352 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9353 ha->host_no, cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ, 9354 ha->dpc_flags, cmd->result, cmd->allowed)); 9355 9356 rval = qla4xxx_isp_check_reg(ha); 9357 if (rval != QLA_SUCCESS) { 9358 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9359 return FAILED; 9360 } 9361 9362 stat = qla4xxx_reset_target(ha, ddb_entry); 9363 if (stat != QLA_SUCCESS) { 9364 starget_printk(KERN_INFO, scsi_target(cmd->device), 9365 "WARM TARGET RESET FAILED.\n"); 9366 return FAILED; 9367 } 9368 9369 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9370 NULL)) { 9371 starget_printk(KERN_INFO, scsi_target(cmd->device), 9372 "WARM TARGET DEVICE RESET FAILED - " 9373 "waiting for commands.\n"); 9374 return FAILED; 9375 } 9376 9377 /* Send marker. */ 9378 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9379 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9380 starget_printk(KERN_INFO, scsi_target(cmd->device), 9381 "WARM TARGET DEVICE RESET FAILED - " 9382 "marker iocb failed.\n"); 9383 return FAILED; 9384 } 9385 9386 starget_printk(KERN_INFO, scsi_target(cmd->device), 9387 "WARM TARGET RESET SUCCEEDED.\n"); 9388 return SUCCESS; 9389 } 9390 9391 /** 9392 * qla4xxx_is_eh_active - check if error handler is running 9393 * @shost: Pointer to SCSI Host struct 9394 * 9395 * This routine finds that if reset host is called in EH 9396 * scenario or from some application like sg_reset 9397 **/ 9398 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9399 { 9400 if (shost->shost_state == SHOST_RECOVERY) 9401 return 1; 9402 return 0; 9403 } 9404 9405 /** 9406 * qla4xxx_eh_host_reset - kernel callback 9407 * @cmd: Pointer to Linux's SCSI command structure 9408 * 9409 * This routine is invoked by the Linux kernel to perform fatal error 9410 * recovery on the specified adapter. 9411 **/ 9412 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9413 { 9414 int return_status = FAILED; 9415 struct scsi_qla_host *ha; 9416 int rval; 9417 9418 ha = to_qla_host(cmd->device->host); 9419 9420 rval = qla4xxx_isp_check_reg(ha); 9421 if (rval != QLA_SUCCESS) { 9422 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9423 return FAILED; 9424 } 9425 9426 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9427 qla4_83xx_set_idc_dontreset(ha); 9428 9429 /* 9430 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9431 * protocol drivers, we should not set device_state to NEED_RESET 9432 */ 9433 if (ql4xdontresethba || 9434 ((is_qla8032(ha) || is_qla8042(ha)) && 9435 qla4_83xx_idc_dontreset(ha))) { 9436 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9437 ha->host_no, __func__)); 9438 9439 /* Clear outstanding srb in queues */ 9440 if (qla4xxx_is_eh_active(cmd->device->host)) 9441 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9442 9443 return FAILED; 9444 } 9445 9446 ql4_printk(KERN_INFO, ha, 9447 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no, 9448 cmd->device->channel, cmd->device->id, cmd->device->lun); 9449 9450 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9451 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9452 "DEAD.\n", ha->host_no, cmd->device->channel, 9453 __func__)); 9454 9455 return FAILED; 9456 } 9457 9458 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9459 if (is_qla80XX(ha)) 9460 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9461 else 9462 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9463 } 9464 9465 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9466 return_status = SUCCESS; 9467 9468 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9469 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9470 9471 return return_status; 9472 } 9473 9474 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9475 { 9476 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9477 uint32_t mbox_sts[MBOX_REG_COUNT]; 9478 struct addr_ctrl_blk_def *acb = NULL; 9479 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9480 int rval = QLA_SUCCESS; 9481 dma_addr_t acb_dma; 9482 9483 acb = dma_alloc_coherent(&ha->pdev->dev, 9484 sizeof(struct addr_ctrl_blk_def), 9485 &acb_dma, GFP_KERNEL); 9486 if (!acb) { 9487 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9488 __func__); 9489 rval = -ENOMEM; 9490 goto exit_port_reset; 9491 } 9492 9493 memset(acb, 0, acb_len); 9494 9495 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9496 if (rval != QLA_SUCCESS) { 9497 rval = -EIO; 9498 goto exit_free_acb; 9499 } 9500 9501 rval = qla4xxx_disable_acb(ha); 9502 if (rval != QLA_SUCCESS) { 9503 rval = -EIO; 9504 goto exit_free_acb; 9505 } 9506 9507 wait_for_completion_timeout(&ha->disable_acb_comp, 9508 DISABLE_ACB_TOV * HZ); 9509 9510 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9511 if (rval != QLA_SUCCESS) { 9512 rval = -EIO; 9513 goto exit_free_acb; 9514 } 9515 9516 exit_free_acb: 9517 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9518 acb, acb_dma); 9519 exit_port_reset: 9520 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9521 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9522 return rval; 9523 } 9524 9525 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9526 { 9527 struct scsi_qla_host *ha = to_qla_host(shost); 9528 int rval = QLA_SUCCESS; 9529 uint32_t idc_ctrl; 9530 9531 if (ql4xdontresethba) { 9532 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9533 __func__)); 9534 rval = -EPERM; 9535 goto exit_host_reset; 9536 } 9537 9538 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9539 goto recover_adapter; 9540 9541 switch (reset_type) { 9542 case SCSI_ADAPTER_RESET: 9543 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9544 break; 9545 case SCSI_FIRMWARE_RESET: 9546 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9547 if (is_qla80XX(ha)) 9548 /* set firmware context reset */ 9549 set_bit(DPC_RESET_HA_FW_CONTEXT, 9550 &ha->dpc_flags); 9551 else { 9552 rval = qla4xxx_context_reset(ha); 9553 goto exit_host_reset; 9554 } 9555 } 9556 break; 9557 } 9558 9559 recover_adapter: 9560 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9561 * reset is issued by application */ 9562 if ((is_qla8032(ha) || is_qla8042(ha)) && 9563 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9564 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9565 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9566 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9567 } 9568 9569 rval = qla4xxx_recover_adapter(ha); 9570 if (rval != QLA_SUCCESS) { 9571 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9572 __func__)); 9573 rval = -EIO; 9574 } 9575 9576 exit_host_reset: 9577 return rval; 9578 } 9579 9580 /* PCI AER driver recovers from all correctable errors w/o 9581 * driver intervention. For uncorrectable errors PCI AER 9582 * driver calls the following device driver's callbacks 9583 * 9584 * - Fatal Errors - link_reset 9585 * - Non-Fatal Errors - driver's error_detected() which 9586 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9587 * 9588 * PCI AER driver calls 9589 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled() 9590 * returns RECOVERED or NEED_RESET if fw_hung 9591 * NEED_RESET - driver's slot_reset() 9592 * DISCONNECT - device is dead & cannot recover 9593 * RECOVERED - driver's resume() 9594 */ 9595 static pci_ers_result_t 9596 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9597 { 9598 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9599 9600 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9601 ha->host_no, __func__, state); 9602 9603 if (!is_aer_supported(ha)) 9604 return PCI_ERS_RESULT_NONE; 9605 9606 switch (state) { 9607 case pci_channel_io_normal: 9608 clear_bit(AF_EEH_BUSY, &ha->flags); 9609 return PCI_ERS_RESULT_CAN_RECOVER; 9610 case pci_channel_io_frozen: 9611 set_bit(AF_EEH_BUSY, &ha->flags); 9612 qla4xxx_mailbox_premature_completion(ha); 9613 qla4xxx_free_irqs(ha); 9614 pci_disable_device(pdev); 9615 /* Return back all IOs */ 9616 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9617 return PCI_ERS_RESULT_NEED_RESET; 9618 case pci_channel_io_perm_failure: 9619 set_bit(AF_EEH_BUSY, &ha->flags); 9620 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9621 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9622 return PCI_ERS_RESULT_DISCONNECT; 9623 } 9624 return PCI_ERS_RESULT_NEED_RESET; 9625 } 9626 9627 /** 9628 * qla4xxx_pci_mmio_enabled() - gets called if 9629 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9630 * and read/write to the device still works. 9631 * @pdev: PCI device pointer 9632 **/ 9633 static pci_ers_result_t 9634 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9635 { 9636 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9637 9638 if (!is_aer_supported(ha)) 9639 return PCI_ERS_RESULT_NONE; 9640 9641 return PCI_ERS_RESULT_RECOVERED; 9642 } 9643 9644 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9645 { 9646 uint32_t rval = QLA_ERROR; 9647 int fn; 9648 struct pci_dev *other_pdev = NULL; 9649 9650 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9651 9652 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9653 9654 if (test_bit(AF_ONLINE, &ha->flags)) { 9655 clear_bit(AF_ONLINE, &ha->flags); 9656 clear_bit(AF_LINK_UP, &ha->flags); 9657 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9658 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9659 } 9660 9661 fn = PCI_FUNC(ha->pdev->devfn); 9662 if (is_qla8022(ha)) { 9663 while (fn > 0) { 9664 fn--; 9665 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9666 ha->host_no, __func__, fn); 9667 /* Get the pci device given the domain, bus, 9668 * slot/function number */ 9669 other_pdev = pci_get_domain_bus_and_slot( 9670 pci_domain_nr(ha->pdev->bus), 9671 ha->pdev->bus->number, 9672 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9673 fn)); 9674 9675 if (!other_pdev) 9676 continue; 9677 9678 if (atomic_read(&other_pdev->enable_cnt)) { 9679 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9680 ha->host_no, __func__, fn); 9681 pci_dev_put(other_pdev); 9682 break; 9683 } 9684 pci_dev_put(other_pdev); 9685 } 9686 } else { 9687 /* this case is meant for ISP83xx/ISP84xx only */ 9688 if (qla4_83xx_can_perform_reset(ha)) { 9689 /* reset fn as iSCSI is going to perform the reset */ 9690 fn = 0; 9691 } 9692 } 9693 9694 /* The first function on the card, the reset owner will 9695 * start & initialize the firmware. The other functions 9696 * on the card will reset the firmware context 9697 */ 9698 if (!fn) { 9699 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9700 "0x%x is the owner\n", ha->host_no, __func__, 9701 ha->pdev->devfn); 9702 9703 ha->isp_ops->idc_lock(ha); 9704 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9705 QLA8XXX_DEV_COLD); 9706 ha->isp_ops->idc_unlock(ha); 9707 9708 rval = qla4_8xxx_update_idc_reg(ha); 9709 if (rval == QLA_ERROR) { 9710 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9711 ha->host_no, __func__); 9712 ha->isp_ops->idc_lock(ha); 9713 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9714 QLA8XXX_DEV_FAILED); 9715 ha->isp_ops->idc_unlock(ha); 9716 goto exit_error_recovery; 9717 } 9718 9719 clear_bit(AF_FW_RECOVERY, &ha->flags); 9720 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9721 9722 if (rval != QLA_SUCCESS) { 9723 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9724 "FAILED\n", ha->host_no, __func__); 9725 qla4xxx_free_irqs(ha); 9726 ha->isp_ops->idc_lock(ha); 9727 qla4_8xxx_clear_drv_active(ha); 9728 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9729 QLA8XXX_DEV_FAILED); 9730 ha->isp_ops->idc_unlock(ha); 9731 } else { 9732 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9733 "READY\n", ha->host_no, __func__); 9734 ha->isp_ops->idc_lock(ha); 9735 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9736 QLA8XXX_DEV_READY); 9737 /* Clear driver state register */ 9738 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9739 qla4_8xxx_set_drv_active(ha); 9740 ha->isp_ops->idc_unlock(ha); 9741 ha->isp_ops->enable_intrs(ha); 9742 } 9743 } else { 9744 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9745 "the reset owner\n", ha->host_no, __func__, 9746 ha->pdev->devfn); 9747 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9748 QLA8XXX_DEV_READY)) { 9749 clear_bit(AF_FW_RECOVERY, &ha->flags); 9750 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9751 if (rval == QLA_SUCCESS) 9752 ha->isp_ops->enable_intrs(ha); 9753 else 9754 qla4xxx_free_irqs(ha); 9755 9756 ha->isp_ops->idc_lock(ha); 9757 qla4_8xxx_set_drv_active(ha); 9758 ha->isp_ops->idc_unlock(ha); 9759 } 9760 } 9761 exit_error_recovery: 9762 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9763 return rval; 9764 } 9765 9766 static pci_ers_result_t 9767 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9768 { 9769 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9770 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9771 int rc; 9772 9773 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9774 ha->host_no, __func__); 9775 9776 if (!is_aer_supported(ha)) 9777 return PCI_ERS_RESULT_NONE; 9778 9779 /* Restore the saved state of PCIe device - 9780 * BAR registers, PCI Config space, PCIX, MSI, 9781 * IOV states 9782 */ 9783 pci_restore_state(pdev); 9784 9785 /* pci_restore_state() clears the saved_state flag of the device 9786 * save restored state which resets saved_state flag 9787 */ 9788 pci_save_state(pdev); 9789 9790 /* Initialize device or resume if in suspended state */ 9791 rc = pci_enable_device(pdev); 9792 if (rc) { 9793 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9794 "device after reset\n", ha->host_no, __func__); 9795 goto exit_slot_reset; 9796 } 9797 9798 ha->isp_ops->disable_intrs(ha); 9799 9800 if (is_qla80XX(ha)) { 9801 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9802 ret = PCI_ERS_RESULT_RECOVERED; 9803 goto exit_slot_reset; 9804 } else 9805 goto exit_slot_reset; 9806 } 9807 9808 exit_slot_reset: 9809 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9810 "device after reset\n", ha->host_no, __func__, ret); 9811 return ret; 9812 } 9813 9814 static void 9815 qla4xxx_pci_resume(struct pci_dev *pdev) 9816 { 9817 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9818 int ret; 9819 9820 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9821 ha->host_no, __func__); 9822 9823 ret = qla4xxx_wait_for_hba_online(ha); 9824 if (ret != QLA_SUCCESS) { 9825 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9826 "resume I/O from slot/link_reset\n", ha->host_no, 9827 __func__); 9828 } 9829 9830 clear_bit(AF_EEH_BUSY, &ha->flags); 9831 } 9832 9833 static const struct pci_error_handlers qla4xxx_err_handler = { 9834 .error_detected = qla4xxx_pci_error_detected, 9835 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9836 .slot_reset = qla4xxx_pci_slot_reset, 9837 .resume = qla4xxx_pci_resume, 9838 }; 9839 9840 static struct pci_device_id qla4xxx_pci_tbl[] = { 9841 { 9842 .vendor = PCI_VENDOR_ID_QLOGIC, 9843 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9844 .subvendor = PCI_ANY_ID, 9845 .subdevice = PCI_ANY_ID, 9846 }, 9847 { 9848 .vendor = PCI_VENDOR_ID_QLOGIC, 9849 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9850 .subvendor = PCI_ANY_ID, 9851 .subdevice = PCI_ANY_ID, 9852 }, 9853 { 9854 .vendor = PCI_VENDOR_ID_QLOGIC, 9855 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9856 .subvendor = PCI_ANY_ID, 9857 .subdevice = PCI_ANY_ID, 9858 }, 9859 { 9860 .vendor = PCI_VENDOR_ID_QLOGIC, 9861 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9862 .subvendor = PCI_ANY_ID, 9863 .subdevice = PCI_ANY_ID, 9864 }, 9865 { 9866 .vendor = PCI_VENDOR_ID_QLOGIC, 9867 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9868 .subvendor = PCI_ANY_ID, 9869 .subdevice = PCI_ANY_ID, 9870 }, 9871 { 9872 .vendor = PCI_VENDOR_ID_QLOGIC, 9873 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9874 .subvendor = PCI_ANY_ID, 9875 .subdevice = PCI_ANY_ID, 9876 }, 9877 {0, 0}, 9878 }; 9879 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9880 9881 static struct pci_driver qla4xxx_pci_driver = { 9882 .name = DRIVER_NAME, 9883 .id_table = qla4xxx_pci_tbl, 9884 .probe = qla4xxx_probe_adapter, 9885 .remove = qla4xxx_remove_adapter, 9886 .err_handler = &qla4xxx_err_handler, 9887 }; 9888 9889 static int __init qla4xxx_module_init(void) 9890 { 9891 int ret; 9892 9893 if (ql4xqfulltracking) 9894 qla4xxx_driver_template.track_queue_depth = 1; 9895 9896 /* Allocate cache for SRBs. */ 9897 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9898 SLAB_HWCACHE_ALIGN, NULL); 9899 if (srb_cachep == NULL) { 9900 printk(KERN_ERR 9901 "%s: Unable to allocate SRB cache..." 9902 "Failing load!\n", DRIVER_NAME); 9903 ret = -ENOMEM; 9904 goto no_srp_cache; 9905 } 9906 9907 /* Derive version string. */ 9908 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9909 if (ql4xextended_error_logging) 9910 strcat(qla4xxx_version_str, "-debug"); 9911 9912 qla4xxx_scsi_transport = 9913 iscsi_register_transport(&qla4xxx_iscsi_transport); 9914 if (!qla4xxx_scsi_transport){ 9915 ret = -ENODEV; 9916 goto release_srb_cache; 9917 } 9918 9919 ret = pci_register_driver(&qla4xxx_pci_driver); 9920 if (ret) 9921 goto unregister_transport; 9922 9923 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9924 return 0; 9925 9926 unregister_transport: 9927 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9928 release_srb_cache: 9929 kmem_cache_destroy(srb_cachep); 9930 no_srp_cache: 9931 return ret; 9932 } 9933 9934 static void __exit qla4xxx_module_exit(void) 9935 { 9936 pci_unregister_driver(&qla4xxx_pci_driver); 9937 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9938 kmem_cache_destroy(srb_cachep); 9939 } 9940 9941 module_init(qla4xxx_module_init); 9942 module_exit(qla4xxx_module_exit); 9943 9944 MODULE_AUTHOR("QLogic Corporation"); 9945 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9946 MODULE_LICENSE("GPL"); 9947 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9948