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 scsi_timeout_action 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_sdev_init(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 .sdev_init = qla4xxx_sdev_init, 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 memcpy(ha->chap_list, chap_flash_data, chap_size); 675 676 exit_chap_list: 677 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma); 678 } 679 680 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha, 681 int16_t chap_index, 682 struct ql4_chap_table **chap_entry) 683 { 684 int rval = QLA_ERROR; 685 int max_chap_entries; 686 687 if (!ha->chap_list) { 688 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 689 goto exit_get_chap; 690 } 691 692 if (is_qla80XX(ha)) 693 max_chap_entries = (ha->hw.flt_chap_size / 2) / 694 sizeof(struct ql4_chap_table); 695 else 696 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 697 698 if (chap_index > max_chap_entries) { 699 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n"); 700 goto exit_get_chap; 701 } 702 703 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index; 704 if ((*chap_entry)->cookie != 705 cpu_to_le16(CHAP_VALID_COOKIE)) { 706 *chap_entry = NULL; 707 } else { 708 rval = QLA_SUCCESS; 709 } 710 711 exit_get_chap: 712 return rval; 713 } 714 715 /** 716 * qla4xxx_find_free_chap_index - Find the first free chap index 717 * @ha: pointer to adapter structure 718 * @chap_index: CHAP index to be returned 719 * 720 * Find the first free chap index available in the chap table 721 * 722 * Note: Caller should acquire the chap lock before getting here. 723 **/ 724 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha, 725 uint16_t *chap_index) 726 { 727 int i, rval; 728 int free_index = -1; 729 int max_chap_entries = 0; 730 struct ql4_chap_table *chap_table; 731 732 if (is_qla80XX(ha)) 733 max_chap_entries = (ha->hw.flt_chap_size / 2) / 734 sizeof(struct ql4_chap_table); 735 else 736 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 737 738 if (!ha->chap_list) { 739 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 740 rval = QLA_ERROR; 741 goto exit_find_chap; 742 } 743 744 for (i = 0; i < max_chap_entries; i++) { 745 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 746 747 if ((chap_table->cookie != 748 cpu_to_le16(CHAP_VALID_COOKIE)) && 749 (i > MAX_RESRV_CHAP_IDX)) { 750 free_index = i; 751 break; 752 } 753 } 754 755 if (free_index != -1) { 756 *chap_index = free_index; 757 rval = QLA_SUCCESS; 758 } else { 759 rval = QLA_ERROR; 760 } 761 762 exit_find_chap: 763 return rval; 764 } 765 766 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 767 uint32_t *num_entries, char *buf) 768 { 769 struct scsi_qla_host *ha = to_qla_host(shost); 770 struct ql4_chap_table *chap_table; 771 struct iscsi_chap_rec *chap_rec; 772 int max_chap_entries = 0; 773 int valid_chap_entries = 0; 774 int ret = 0, i; 775 776 if (is_qla80XX(ha)) 777 max_chap_entries = (ha->hw.flt_chap_size / 2) / 778 sizeof(struct ql4_chap_table); 779 else 780 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 781 782 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 783 __func__, *num_entries, chap_tbl_idx); 784 785 if (!buf) { 786 ret = -ENOMEM; 787 goto exit_get_chap_list; 788 } 789 790 qla4xxx_create_chap_list(ha); 791 792 chap_rec = (struct iscsi_chap_rec *) buf; 793 mutex_lock(&ha->chap_sem); 794 for (i = chap_tbl_idx; i < max_chap_entries; i++) { 795 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 796 if (chap_table->cookie != 797 cpu_to_le16(CHAP_VALID_COOKIE)) 798 continue; 799 800 chap_rec->chap_tbl_idx = i; 801 strscpy(chap_rec->username, chap_table->name, 802 sizeof(chap_rec->username)); 803 chap_rec->password_length = strscpy(chap_rec->password, 804 chap_table->secret, 805 sizeof(chap_rec->password)); 806 807 if (chap_table->flags & BIT_7) /* local */ 808 chap_rec->chap_type = CHAP_TYPE_OUT; 809 810 if (chap_table->flags & BIT_6) /* peer */ 811 chap_rec->chap_type = CHAP_TYPE_IN; 812 813 chap_rec++; 814 815 valid_chap_entries++; 816 if (valid_chap_entries == *num_entries) 817 break; 818 } 819 mutex_unlock(&ha->chap_sem); 820 821 exit_get_chap_list: 822 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 823 __func__, valid_chap_entries); 824 *num_entries = valid_chap_entries; 825 return ret; 826 } 827 828 static int __qla4xxx_is_chap_active(struct device *dev, void *data) 829 { 830 int ret = 0; 831 uint16_t *chap_tbl_idx = (uint16_t *) data; 832 struct iscsi_cls_session *cls_session; 833 struct iscsi_session *sess; 834 struct ddb_entry *ddb_entry; 835 836 if (!iscsi_is_session_dev(dev)) 837 goto exit_is_chap_active; 838 839 cls_session = iscsi_dev_to_session(dev); 840 sess = cls_session->dd_data; 841 ddb_entry = sess->dd_data; 842 843 if (iscsi_is_session_online(cls_session)) 844 goto exit_is_chap_active; 845 846 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 847 ret = 1; 848 849 exit_is_chap_active: 850 return ret; 851 } 852 853 static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 854 uint16_t chap_tbl_idx) 855 { 856 int ret = 0; 857 858 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 859 __qla4xxx_is_chap_active); 860 861 return ret; 862 } 863 864 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 865 { 866 struct scsi_qla_host *ha = to_qla_host(shost); 867 struct ql4_chap_table *chap_table; 868 dma_addr_t chap_dma; 869 int max_chap_entries = 0; 870 uint32_t offset = 0; 871 uint32_t chap_size; 872 int ret = 0; 873 874 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 875 if (chap_table == NULL) 876 return -ENOMEM; 877 878 if (is_qla80XX(ha)) 879 max_chap_entries = (ha->hw.flt_chap_size / 2) / 880 sizeof(struct ql4_chap_table); 881 else 882 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 883 884 if (chap_tbl_idx > max_chap_entries) { 885 ret = -EINVAL; 886 goto exit_delete_chap; 887 } 888 889 /* Check if chap index is in use. 890 * If chap is in use don't delet chap entry */ 891 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 892 if (ret) { 893 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 894 "delete from flash\n", chap_tbl_idx); 895 ret = -EBUSY; 896 goto exit_delete_chap; 897 } 898 899 chap_size = sizeof(struct ql4_chap_table); 900 if (is_qla40XX(ha)) 901 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 902 else { 903 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 904 /* flt_chap_size is CHAP table size for both ports 905 * so divide it by 2 to calculate the offset for second port 906 */ 907 if (ha->port_num == 1) 908 offset += (ha->hw.flt_chap_size / 2); 909 offset += (chap_tbl_idx * chap_size); 910 } 911 912 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 913 if (ret != QLA_SUCCESS) { 914 ret = -EINVAL; 915 goto exit_delete_chap; 916 } 917 918 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 919 __le16_to_cpu(chap_table->cookie))); 920 921 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 922 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 923 goto exit_delete_chap; 924 } 925 926 chap_table->cookie = cpu_to_le16(0xFFFF); 927 928 offset = FLASH_CHAP_OFFSET | 929 (chap_tbl_idx * sizeof(struct ql4_chap_table)); 930 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 931 FLASH_OPT_RMW_COMMIT); 932 if (ret == QLA_SUCCESS && ha->chap_list) { 933 mutex_lock(&ha->chap_sem); 934 /* Update ha chap_list cache */ 935 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 936 chap_table, sizeof(struct ql4_chap_table)); 937 mutex_unlock(&ha->chap_sem); 938 } 939 if (ret != QLA_SUCCESS) 940 ret = -EINVAL; 941 942 exit_delete_chap: 943 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 944 return ret; 945 } 946 947 /** 948 * qla4xxx_set_chap_entry - Make chap entry with given information 949 * @shost: pointer to host 950 * @data: chap info - credentials, index and type to make chap entry 951 * @len: length of data 952 * 953 * Add or update chap entry with the given information 954 **/ 955 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len) 956 { 957 struct scsi_qla_host *ha = to_qla_host(shost); 958 struct iscsi_chap_rec chap_rec; 959 struct ql4_chap_table *chap_entry = NULL; 960 struct iscsi_param_info *param_info; 961 struct nlattr *attr; 962 int max_chap_entries = 0; 963 int type; 964 int rem = len; 965 int rc = 0; 966 int size; 967 968 memset(&chap_rec, 0, sizeof(chap_rec)); 969 970 nla_for_each_attr(attr, data, len, rem) { 971 if (nla_len(attr) < sizeof(*param_info)) { 972 rc = -EINVAL; 973 goto exit_set_chap; 974 } 975 976 param_info = nla_data(attr); 977 978 switch (param_info->param) { 979 case ISCSI_CHAP_PARAM_INDEX: 980 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value; 981 break; 982 case ISCSI_CHAP_PARAM_CHAP_TYPE: 983 chap_rec.chap_type = param_info->value[0]; 984 break; 985 case ISCSI_CHAP_PARAM_USERNAME: 986 size = min_t(size_t, sizeof(chap_rec.username), 987 param_info->len); 988 memcpy(chap_rec.username, param_info->value, size); 989 break; 990 case ISCSI_CHAP_PARAM_PASSWORD: 991 size = min_t(size_t, sizeof(chap_rec.password), 992 param_info->len); 993 memcpy(chap_rec.password, param_info->value, size); 994 break; 995 case ISCSI_CHAP_PARAM_PASSWORD_LEN: 996 chap_rec.password_length = param_info->value[0]; 997 break; 998 default: 999 ql4_printk(KERN_ERR, ha, 1000 "%s: No such sysfs attribute\n", __func__); 1001 rc = -ENOSYS; 1002 goto exit_set_chap; 1003 } 1004 } 1005 1006 if (chap_rec.chap_type == CHAP_TYPE_IN) 1007 type = BIDI_CHAP; 1008 else 1009 type = LOCAL_CHAP; 1010 1011 if (is_qla80XX(ha)) 1012 max_chap_entries = (ha->hw.flt_chap_size / 2) / 1013 sizeof(struct ql4_chap_table); 1014 else 1015 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 1016 1017 mutex_lock(&ha->chap_sem); 1018 if (chap_rec.chap_tbl_idx < max_chap_entries) { 1019 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx, 1020 &chap_entry); 1021 if (!rc) { 1022 if (!(type == qla4xxx_get_chap_type(chap_entry))) { 1023 ql4_printk(KERN_INFO, ha, 1024 "Type mismatch for CHAP entry %d\n", 1025 chap_rec.chap_tbl_idx); 1026 rc = -EINVAL; 1027 goto exit_unlock_chap; 1028 } 1029 1030 /* If chap index is in use then don't modify it */ 1031 rc = qla4xxx_is_chap_active(shost, 1032 chap_rec.chap_tbl_idx); 1033 if (rc) { 1034 ql4_printk(KERN_INFO, ha, 1035 "CHAP entry %d is in use\n", 1036 chap_rec.chap_tbl_idx); 1037 rc = -EBUSY; 1038 goto exit_unlock_chap; 1039 } 1040 } 1041 } else { 1042 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx); 1043 if (rc) { 1044 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n"); 1045 rc = -EBUSY; 1046 goto exit_unlock_chap; 1047 } 1048 } 1049 1050 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password, 1051 chap_rec.chap_tbl_idx, type); 1052 1053 exit_unlock_chap: 1054 mutex_unlock(&ha->chap_sem); 1055 1056 exit_set_chap: 1057 return rc; 1058 } 1059 1060 1061 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len) 1062 { 1063 struct scsi_qla_host *ha = to_qla_host(shost); 1064 struct iscsi_offload_host_stats *host_stats = NULL; 1065 int host_stats_size; 1066 int ret = 0; 1067 int ddb_idx = 0; 1068 struct ql_iscsi_stats *ql_iscsi_stats = NULL; 1069 int stats_size; 1070 dma_addr_t iscsi_stats_dma; 1071 1072 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__)); 1073 1074 host_stats_size = sizeof(struct iscsi_offload_host_stats); 1075 1076 if (host_stats_size != len) { 1077 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n", 1078 __func__, len, host_stats_size); 1079 ret = -EINVAL; 1080 goto exit_host_stats; 1081 } 1082 host_stats = (struct iscsi_offload_host_stats *)buf; 1083 1084 if (!buf) { 1085 ret = -ENOMEM; 1086 goto exit_host_stats; 1087 } 1088 1089 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1090 1091 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1092 &iscsi_stats_dma, GFP_KERNEL); 1093 if (!ql_iscsi_stats) { 1094 ql4_printk(KERN_ERR, ha, 1095 "Unable to allocate memory for iscsi stats\n"); 1096 ret = -ENOMEM; 1097 goto exit_host_stats; 1098 } 1099 1100 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size, 1101 iscsi_stats_dma); 1102 if (ret != QLA_SUCCESS) { 1103 ql4_printk(KERN_ERR, ha, 1104 "Unable to retrieve iscsi stats\n"); 1105 ret = -EIO; 1106 goto exit_host_stats; 1107 } 1108 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames); 1109 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes); 1110 host_stats->mactx_multicast_frames = 1111 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames); 1112 host_stats->mactx_broadcast_frames = 1113 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames); 1114 host_stats->mactx_pause_frames = 1115 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames); 1116 host_stats->mactx_control_frames = 1117 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames); 1118 host_stats->mactx_deferral = 1119 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral); 1120 host_stats->mactx_excess_deferral = 1121 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral); 1122 host_stats->mactx_late_collision = 1123 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision); 1124 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort); 1125 host_stats->mactx_single_collision = 1126 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision); 1127 host_stats->mactx_multiple_collision = 1128 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision); 1129 host_stats->mactx_collision = 1130 le64_to_cpu(ql_iscsi_stats->mac_tx_collision); 1131 host_stats->mactx_frames_dropped = 1132 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped); 1133 host_stats->mactx_jumbo_frames = 1134 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames); 1135 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames); 1136 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes); 1137 host_stats->macrx_unknown_control_frames = 1138 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames); 1139 host_stats->macrx_pause_frames = 1140 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames); 1141 host_stats->macrx_control_frames = 1142 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames); 1143 host_stats->macrx_dribble = 1144 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble); 1145 host_stats->macrx_frame_length_error = 1146 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error); 1147 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber); 1148 host_stats->macrx_carrier_sense_error = 1149 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error); 1150 host_stats->macrx_frame_discarded = 1151 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded); 1152 host_stats->macrx_frames_dropped = 1153 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped); 1154 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error); 1155 host_stats->mac_encoding_error = 1156 le64_to_cpu(ql_iscsi_stats->mac_encoding_error); 1157 host_stats->macrx_length_error_large = 1158 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large); 1159 host_stats->macrx_length_error_small = 1160 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small); 1161 host_stats->macrx_multicast_frames = 1162 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames); 1163 host_stats->macrx_broadcast_frames = 1164 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames); 1165 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets); 1166 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes); 1167 host_stats->iptx_fragments = 1168 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments); 1169 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets); 1170 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes); 1171 host_stats->iprx_fragments = 1172 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments); 1173 host_stats->ip_datagram_reassembly = 1174 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly); 1175 host_stats->ip_invalid_address_error = 1176 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error); 1177 host_stats->ip_error_packets = 1178 le64_to_cpu(ql_iscsi_stats->ip_error_packets); 1179 host_stats->ip_fragrx_overlap = 1180 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap); 1181 host_stats->ip_fragrx_outoforder = 1182 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder); 1183 host_stats->ip_datagram_reassembly_timeout = 1184 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout); 1185 host_stats->ipv6tx_packets = 1186 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets); 1187 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes); 1188 host_stats->ipv6tx_fragments = 1189 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments); 1190 host_stats->ipv6rx_packets = 1191 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets); 1192 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes); 1193 host_stats->ipv6rx_fragments = 1194 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments); 1195 host_stats->ipv6_datagram_reassembly = 1196 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly); 1197 host_stats->ipv6_invalid_address_error = 1198 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error); 1199 host_stats->ipv6_error_packets = 1200 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets); 1201 host_stats->ipv6_fragrx_overlap = 1202 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap); 1203 host_stats->ipv6_fragrx_outoforder = 1204 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder); 1205 host_stats->ipv6_datagram_reassembly_timeout = 1206 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout); 1207 host_stats->tcptx_segments = 1208 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments); 1209 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes); 1210 host_stats->tcprx_segments = 1211 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments); 1212 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte); 1213 host_stats->tcp_duplicate_ack_retx = 1214 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx); 1215 host_stats->tcp_retx_timer_expired = 1216 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired); 1217 host_stats->tcprx_duplicate_ack = 1218 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack); 1219 host_stats->tcprx_pure_ackr = 1220 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr); 1221 host_stats->tcptx_delayed_ack = 1222 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack); 1223 host_stats->tcptx_pure_ack = 1224 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack); 1225 host_stats->tcprx_segment_error = 1226 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error); 1227 host_stats->tcprx_segment_outoforder = 1228 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder); 1229 host_stats->tcprx_window_probe = 1230 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe); 1231 host_stats->tcprx_window_update = 1232 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update); 1233 host_stats->tcptx_window_probe_persist = 1234 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist); 1235 host_stats->ecc_error_correction = 1236 le64_to_cpu(ql_iscsi_stats->ecc_error_correction); 1237 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx); 1238 host_stats->iscsi_data_bytes_tx = 1239 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx); 1240 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx); 1241 host_stats->iscsi_data_bytes_rx = 1242 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx); 1243 host_stats->iscsi_io_completed = 1244 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed); 1245 host_stats->iscsi_unexpected_io_rx = 1246 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx); 1247 host_stats->iscsi_format_error = 1248 le64_to_cpu(ql_iscsi_stats->iscsi_format_error); 1249 host_stats->iscsi_hdr_digest_error = 1250 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error); 1251 host_stats->iscsi_data_digest_error = 1252 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error); 1253 host_stats->iscsi_sequence_error = 1254 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error); 1255 exit_host_stats: 1256 if (ql_iscsi_stats) 1257 dma_free_coherent(&ha->pdev->dev, stats_size, 1258 ql_iscsi_stats, iscsi_stats_dma); 1259 1260 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n", 1261 __func__); 1262 return ret; 1263 } 1264 1265 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 1266 enum iscsi_param_type param_type, 1267 int param, char *buf) 1268 { 1269 struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 1270 struct scsi_qla_host *ha = to_qla_host(shost); 1271 int ival; 1272 char *pval = NULL; 1273 int len = -ENOSYS; 1274 1275 if (param_type == ISCSI_NET_PARAM) { 1276 switch (param) { 1277 case ISCSI_NET_PARAM_IPV4_ADDR: 1278 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1279 break; 1280 case ISCSI_NET_PARAM_IPV4_SUBNET: 1281 len = sprintf(buf, "%pI4\n", 1282 &ha->ip_config.subnet_mask); 1283 break; 1284 case ISCSI_NET_PARAM_IPV4_GW: 1285 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 1286 break; 1287 case ISCSI_NET_PARAM_IFACE_ENABLE: 1288 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1289 OP_STATE(ha->ip_config.ipv4_options, 1290 IPOPT_IPV4_PROTOCOL_ENABLE, pval); 1291 } else { 1292 OP_STATE(ha->ip_config.ipv6_options, 1293 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval); 1294 } 1295 1296 len = sprintf(buf, "%s\n", pval); 1297 break; 1298 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1299 len = sprintf(buf, "%s\n", 1300 (ha->ip_config.tcp_options & 1301 TCPOPT_DHCP_ENABLE) ? 1302 "dhcp" : "static"); 1303 break; 1304 case ISCSI_NET_PARAM_IPV6_ADDR: 1305 if (iface->iface_num == 0) 1306 len = sprintf(buf, "%pI6\n", 1307 &ha->ip_config.ipv6_addr0); 1308 if (iface->iface_num == 1) 1309 len = sprintf(buf, "%pI6\n", 1310 &ha->ip_config.ipv6_addr1); 1311 break; 1312 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1313 len = sprintf(buf, "%pI6\n", 1314 &ha->ip_config.ipv6_link_local_addr); 1315 break; 1316 case ISCSI_NET_PARAM_IPV6_ROUTER: 1317 len = sprintf(buf, "%pI6\n", 1318 &ha->ip_config.ipv6_default_router_addr); 1319 break; 1320 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1321 pval = (ha->ip_config.ipv6_addl_options & 1322 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 1323 "nd" : "static"; 1324 1325 len = sprintf(buf, "%s\n", pval); 1326 break; 1327 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1328 pval = (ha->ip_config.ipv6_addl_options & 1329 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 1330 "auto" : "static"; 1331 1332 len = sprintf(buf, "%s\n", pval); 1333 break; 1334 case ISCSI_NET_PARAM_VLAN_ID: 1335 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1336 ival = ha->ip_config.ipv4_vlan_tag & 1337 ISCSI_MAX_VLAN_ID; 1338 else 1339 ival = ha->ip_config.ipv6_vlan_tag & 1340 ISCSI_MAX_VLAN_ID; 1341 1342 len = sprintf(buf, "%d\n", ival); 1343 break; 1344 case ISCSI_NET_PARAM_VLAN_PRIORITY: 1345 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1346 ival = (ha->ip_config.ipv4_vlan_tag >> 13) & 1347 ISCSI_MAX_VLAN_PRIORITY; 1348 else 1349 ival = (ha->ip_config.ipv6_vlan_tag >> 13) & 1350 ISCSI_MAX_VLAN_PRIORITY; 1351 1352 len = sprintf(buf, "%d\n", ival); 1353 break; 1354 case ISCSI_NET_PARAM_VLAN_ENABLED: 1355 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1356 OP_STATE(ha->ip_config.ipv4_options, 1357 IPOPT_VLAN_TAGGING_ENABLE, pval); 1358 } else { 1359 OP_STATE(ha->ip_config.ipv6_options, 1360 IPV6_OPT_VLAN_TAGGING_ENABLE, pval); 1361 } 1362 len = sprintf(buf, "%s\n", pval); 1363 break; 1364 case ISCSI_NET_PARAM_MTU: 1365 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 1366 break; 1367 case ISCSI_NET_PARAM_PORT: 1368 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1369 len = sprintf(buf, "%d\n", 1370 ha->ip_config.ipv4_port); 1371 else 1372 len = sprintf(buf, "%d\n", 1373 ha->ip_config.ipv6_port); 1374 break; 1375 case ISCSI_NET_PARAM_IPADDR_STATE: 1376 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1377 pval = iscsi_get_ipaddress_state_name( 1378 ha->ip_config.ipv4_addr_state); 1379 } else { 1380 if (iface->iface_num == 0) 1381 pval = iscsi_get_ipaddress_state_name( 1382 ha->ip_config.ipv6_addr0_state); 1383 else if (iface->iface_num == 1) 1384 pval = iscsi_get_ipaddress_state_name( 1385 ha->ip_config.ipv6_addr1_state); 1386 } 1387 1388 len = sprintf(buf, "%s\n", pval); 1389 break; 1390 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 1391 pval = iscsi_get_ipaddress_state_name( 1392 ha->ip_config.ipv6_link_local_state); 1393 len = sprintf(buf, "%s\n", pval); 1394 break; 1395 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 1396 pval = iscsi_get_router_state_name( 1397 ha->ip_config.ipv6_default_router_state); 1398 len = sprintf(buf, "%s\n", pval); 1399 break; 1400 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 1401 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1402 OP_STATE(~ha->ip_config.tcp_options, 1403 TCPOPT_DELAYED_ACK_DISABLE, pval); 1404 } else { 1405 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1406 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval); 1407 } 1408 len = sprintf(buf, "%s\n", pval); 1409 break; 1410 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 1411 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1412 OP_STATE(~ha->ip_config.tcp_options, 1413 TCPOPT_NAGLE_ALGO_DISABLE, pval); 1414 } else { 1415 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1416 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval); 1417 } 1418 len = sprintf(buf, "%s\n", pval); 1419 break; 1420 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 1421 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1422 OP_STATE(~ha->ip_config.tcp_options, 1423 TCPOPT_WINDOW_SCALE_DISABLE, pval); 1424 } else { 1425 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1426 IPV6_TCPOPT_WINDOW_SCALE_DISABLE, 1427 pval); 1428 } 1429 len = sprintf(buf, "%s\n", pval); 1430 break; 1431 case ISCSI_NET_PARAM_TCP_WSF: 1432 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1433 len = sprintf(buf, "%d\n", 1434 ha->ip_config.tcp_wsf); 1435 else 1436 len = sprintf(buf, "%d\n", 1437 ha->ip_config.ipv6_tcp_wsf); 1438 break; 1439 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 1440 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1441 ival = (ha->ip_config.tcp_options & 1442 TCPOPT_TIMER_SCALE) >> 1; 1443 else 1444 ival = (ha->ip_config.ipv6_tcp_options & 1445 IPV6_TCPOPT_TIMER_SCALE) >> 1; 1446 1447 len = sprintf(buf, "%d\n", ival); 1448 break; 1449 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 1450 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1451 OP_STATE(ha->ip_config.tcp_options, 1452 TCPOPT_TIMESTAMP_ENABLE, pval); 1453 } else { 1454 OP_STATE(ha->ip_config.ipv6_tcp_options, 1455 IPV6_TCPOPT_TIMESTAMP_EN, pval); 1456 } 1457 len = sprintf(buf, "%s\n", pval); 1458 break; 1459 case ISCSI_NET_PARAM_CACHE_ID: 1460 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1461 len = sprintf(buf, "%d\n", 1462 ha->ip_config.ipv4_cache_id); 1463 else 1464 len = sprintf(buf, "%d\n", 1465 ha->ip_config.ipv6_cache_id); 1466 break; 1467 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 1468 OP_STATE(ha->ip_config.tcp_options, 1469 TCPOPT_DNS_SERVER_IP_EN, pval); 1470 1471 len = sprintf(buf, "%s\n", pval); 1472 break; 1473 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 1474 OP_STATE(ha->ip_config.tcp_options, 1475 TCPOPT_SLP_DA_INFO_EN, pval); 1476 1477 len = sprintf(buf, "%s\n", pval); 1478 break; 1479 case ISCSI_NET_PARAM_IPV4_TOS_EN: 1480 OP_STATE(ha->ip_config.ipv4_options, 1481 IPOPT_IPV4_TOS_EN, pval); 1482 1483 len = sprintf(buf, "%s\n", pval); 1484 break; 1485 case ISCSI_NET_PARAM_IPV4_TOS: 1486 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos); 1487 break; 1488 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 1489 OP_STATE(ha->ip_config.ipv4_options, 1490 IPOPT_GRAT_ARP_EN, pval); 1491 1492 len = sprintf(buf, "%s\n", pval); 1493 break; 1494 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 1495 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN, 1496 pval); 1497 1498 len = sprintf(buf, "%s\n", pval); 1499 break; 1500 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 1501 pval = (ha->ip_config.ipv4_alt_cid_len) ? 1502 (char *)ha->ip_config.ipv4_alt_cid : ""; 1503 1504 len = sprintf(buf, "%s\n", pval); 1505 break; 1506 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 1507 OP_STATE(ha->ip_config.ipv4_options, 1508 IPOPT_REQ_VID_EN, pval); 1509 1510 len = sprintf(buf, "%s\n", pval); 1511 break; 1512 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 1513 OP_STATE(ha->ip_config.ipv4_options, 1514 IPOPT_USE_VID_EN, pval); 1515 1516 len = sprintf(buf, "%s\n", pval); 1517 break; 1518 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 1519 pval = (ha->ip_config.ipv4_vid_len) ? 1520 (char *)ha->ip_config.ipv4_vid : ""; 1521 1522 len = sprintf(buf, "%s\n", pval); 1523 break; 1524 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 1525 OP_STATE(ha->ip_config.ipv4_options, 1526 IPOPT_LEARN_IQN_EN, pval); 1527 1528 len = sprintf(buf, "%s\n", pval); 1529 break; 1530 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 1531 OP_STATE(~ha->ip_config.ipv4_options, 1532 IPOPT_FRAGMENTATION_DISABLE, pval); 1533 1534 len = sprintf(buf, "%s\n", pval); 1535 break; 1536 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 1537 OP_STATE(ha->ip_config.ipv4_options, 1538 IPOPT_IN_FORWARD_EN, pval); 1539 1540 len = sprintf(buf, "%s\n", pval); 1541 break; 1542 case ISCSI_NET_PARAM_REDIRECT_EN: 1543 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1544 OP_STATE(ha->ip_config.ipv4_options, 1545 IPOPT_ARP_REDIRECT_EN, pval); 1546 } else { 1547 OP_STATE(ha->ip_config.ipv6_options, 1548 IPV6_OPT_REDIRECT_EN, pval); 1549 } 1550 len = sprintf(buf, "%s\n", pval); 1551 break; 1552 case ISCSI_NET_PARAM_IPV4_TTL: 1553 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl); 1554 break; 1555 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 1556 OP_STATE(ha->ip_config.ipv6_options, 1557 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval); 1558 1559 len = sprintf(buf, "%s\n", pval); 1560 break; 1561 case ISCSI_NET_PARAM_IPV6_MLD_EN: 1562 OP_STATE(ha->ip_config.ipv6_addl_options, 1563 IPV6_ADDOPT_MLD_EN, pval); 1564 1565 len = sprintf(buf, "%s\n", pval); 1566 break; 1567 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 1568 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl); 1569 break; 1570 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 1571 len = sprintf(buf, "%d\n", 1572 ha->ip_config.ipv6_traffic_class); 1573 break; 1574 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 1575 len = sprintf(buf, "%d\n", 1576 ha->ip_config.ipv6_hop_limit); 1577 break; 1578 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 1579 len = sprintf(buf, "%d\n", 1580 ha->ip_config.ipv6_nd_reach_time); 1581 break; 1582 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 1583 len = sprintf(buf, "%d\n", 1584 ha->ip_config.ipv6_nd_rexmit_timer); 1585 break; 1586 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 1587 len = sprintf(buf, "%d\n", 1588 ha->ip_config.ipv6_nd_stale_timeout); 1589 break; 1590 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 1591 len = sprintf(buf, "%d\n", 1592 ha->ip_config.ipv6_dup_addr_detect_count); 1593 break; 1594 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 1595 len = sprintf(buf, "%d\n", 1596 ha->ip_config.ipv6_gw_advrt_mtu); 1597 break; 1598 default: 1599 len = -ENOSYS; 1600 } 1601 } else if (param_type == ISCSI_IFACE_PARAM) { 1602 switch (param) { 1603 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 1604 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout); 1605 break; 1606 case ISCSI_IFACE_PARAM_HDRDGST_EN: 1607 OP_STATE(ha->ip_config.iscsi_options, 1608 ISCSIOPTS_HEADER_DIGEST_EN, pval); 1609 1610 len = sprintf(buf, "%s\n", pval); 1611 break; 1612 case ISCSI_IFACE_PARAM_DATADGST_EN: 1613 OP_STATE(ha->ip_config.iscsi_options, 1614 ISCSIOPTS_DATA_DIGEST_EN, pval); 1615 1616 len = sprintf(buf, "%s\n", pval); 1617 break; 1618 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 1619 OP_STATE(ha->ip_config.iscsi_options, 1620 ISCSIOPTS_IMMEDIATE_DATA_EN, pval); 1621 1622 len = sprintf(buf, "%s\n", pval); 1623 break; 1624 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 1625 OP_STATE(ha->ip_config.iscsi_options, 1626 ISCSIOPTS_INITIAL_R2T_EN, pval); 1627 1628 len = sprintf(buf, "%s\n", pval); 1629 break; 1630 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 1631 OP_STATE(ha->ip_config.iscsi_options, 1632 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval); 1633 1634 len = sprintf(buf, "%s\n", pval); 1635 break; 1636 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 1637 OP_STATE(ha->ip_config.iscsi_options, 1638 ISCSIOPTS_DATA_PDU_INORDER_EN, pval); 1639 1640 len = sprintf(buf, "%s\n", pval); 1641 break; 1642 case ISCSI_IFACE_PARAM_ERL: 1643 len = sprintf(buf, "%d\n", 1644 (ha->ip_config.iscsi_options & 1645 ISCSIOPTS_ERL)); 1646 break; 1647 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 1648 len = sprintf(buf, "%u\n", 1649 ha->ip_config.iscsi_max_pdu_size * 1650 BYTE_UNITS); 1651 break; 1652 case ISCSI_IFACE_PARAM_FIRST_BURST: 1653 len = sprintf(buf, "%u\n", 1654 ha->ip_config.iscsi_first_burst_len * 1655 BYTE_UNITS); 1656 break; 1657 case ISCSI_IFACE_PARAM_MAX_R2T: 1658 len = sprintf(buf, "%d\n", 1659 ha->ip_config.iscsi_max_outstnd_r2t); 1660 break; 1661 case ISCSI_IFACE_PARAM_MAX_BURST: 1662 len = sprintf(buf, "%u\n", 1663 ha->ip_config.iscsi_max_burst_len * 1664 BYTE_UNITS); 1665 break; 1666 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 1667 OP_STATE(ha->ip_config.iscsi_options, 1668 ISCSIOPTS_CHAP_AUTH_EN, pval); 1669 1670 len = sprintf(buf, "%s\n", pval); 1671 break; 1672 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 1673 OP_STATE(ha->ip_config.iscsi_options, 1674 ISCSIOPTS_BIDI_CHAP_EN, pval); 1675 1676 len = sprintf(buf, "%s\n", pval); 1677 break; 1678 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 1679 OP_STATE(ha->ip_config.iscsi_options, 1680 ISCSIOPTS_DISCOVERY_AUTH_EN, pval); 1681 1682 len = sprintf(buf, "%s\n", pval); 1683 break; 1684 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 1685 OP_STATE(ha->ip_config.iscsi_options, 1686 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval); 1687 1688 len = sprintf(buf, "%s\n", pval); 1689 break; 1690 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 1691 OP_STATE(ha->ip_config.iscsi_options, 1692 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval); 1693 1694 len = sprintf(buf, "%s\n", pval); 1695 break; 1696 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 1697 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name); 1698 break; 1699 default: 1700 len = -ENOSYS; 1701 } 1702 } 1703 1704 return len; 1705 } 1706 1707 static struct iscsi_endpoint * 1708 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 1709 int non_blocking) 1710 { 1711 int ret; 1712 struct iscsi_endpoint *ep; 1713 struct qla_endpoint *qla_ep; 1714 struct scsi_qla_host *ha; 1715 struct sockaddr_in *addr; 1716 struct sockaddr_in6 *addr6; 1717 1718 if (!shost) { 1719 ret = -ENXIO; 1720 pr_err("%s: shost is NULL\n", __func__); 1721 return ERR_PTR(ret); 1722 } 1723 1724 ha = iscsi_host_priv(shost); 1725 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 1726 if (!ep) { 1727 ret = -ENOMEM; 1728 return ERR_PTR(ret); 1729 } 1730 1731 qla_ep = ep->dd_data; 1732 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 1733 if (dst_addr->sa_family == AF_INET) { 1734 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 1735 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 1736 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 1737 (char *)&addr->sin_addr)); 1738 } else if (dst_addr->sa_family == AF_INET6) { 1739 memcpy(&qla_ep->dst_addr, dst_addr, 1740 sizeof(struct sockaddr_in6)); 1741 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 1742 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 1743 (char *)&addr6->sin6_addr)); 1744 } else { 1745 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n", 1746 __func__); 1747 } 1748 1749 qla_ep->host = shost; 1750 1751 return ep; 1752 } 1753 1754 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 1755 { 1756 struct qla_endpoint *qla_ep; 1757 struct scsi_qla_host *ha; 1758 int ret = 0; 1759 1760 qla_ep = ep->dd_data; 1761 ha = to_qla_host(qla_ep->host); 1762 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no)); 1763 1764 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 1765 ret = 1; 1766 1767 return ret; 1768 } 1769 1770 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 1771 { 1772 struct qla_endpoint *qla_ep; 1773 struct scsi_qla_host *ha; 1774 1775 qla_ep = ep->dd_data; 1776 ha = to_qla_host(qla_ep->host); 1777 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1778 ha->host_no)); 1779 iscsi_destroy_endpoint(ep); 1780 } 1781 1782 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 1783 enum iscsi_param param, 1784 char *buf) 1785 { 1786 struct qla_endpoint *qla_ep = ep->dd_data; 1787 struct sockaddr *dst_addr; 1788 struct scsi_qla_host *ha; 1789 1790 if (!qla_ep) 1791 return -ENOTCONN; 1792 1793 ha = to_qla_host(qla_ep->host); 1794 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1795 ha->host_no)); 1796 1797 switch (param) { 1798 case ISCSI_PARAM_CONN_PORT: 1799 case ISCSI_PARAM_CONN_ADDRESS: 1800 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1801 if (!dst_addr) 1802 return -ENOTCONN; 1803 1804 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1805 &qla_ep->dst_addr, param, buf); 1806 default: 1807 return -ENOSYS; 1808 } 1809 } 1810 1811 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 1812 struct iscsi_stats *stats) 1813 { 1814 struct iscsi_session *sess; 1815 struct iscsi_cls_session *cls_sess; 1816 struct ddb_entry *ddb_entry; 1817 struct scsi_qla_host *ha; 1818 struct ql_iscsi_stats *ql_iscsi_stats; 1819 int stats_size; 1820 int ret; 1821 dma_addr_t iscsi_stats_dma; 1822 1823 cls_sess = iscsi_conn_to_session(cls_conn); 1824 sess = cls_sess->dd_data; 1825 ddb_entry = sess->dd_data; 1826 ha = ddb_entry->ha; 1827 1828 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1829 ha->host_no)); 1830 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1831 /* Allocate memory */ 1832 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1833 &iscsi_stats_dma, GFP_KERNEL); 1834 if (!ql_iscsi_stats) { 1835 ql4_printk(KERN_ERR, ha, 1836 "Unable to allocate memory for iscsi stats\n"); 1837 goto exit_get_stats; 1838 } 1839 1840 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 1841 iscsi_stats_dma); 1842 if (ret != QLA_SUCCESS) { 1843 ql4_printk(KERN_ERR, ha, 1844 "Unable to retrieve iscsi stats\n"); 1845 goto free_stats; 1846 } 1847 1848 /* octets */ 1849 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 1850 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 1851 /* xmit pdus */ 1852 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 1853 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 1854 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 1855 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 1856 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 1857 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 1858 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 1859 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 1860 /* recv pdus */ 1861 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 1862 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 1863 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 1864 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 1865 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 1866 stats->logoutrsp_pdus = 1867 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 1868 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 1869 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 1870 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 1871 1872 free_stats: 1873 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 1874 iscsi_stats_dma); 1875 exit_get_stats: 1876 return; 1877 } 1878 1879 static enum scsi_timeout_action qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 1880 { 1881 struct iscsi_cls_session *session; 1882 unsigned long flags; 1883 enum scsi_timeout_action ret = SCSI_EH_NOT_HANDLED; 1884 1885 session = starget_to_session(scsi_target(sc->device)); 1886 1887 spin_lock_irqsave(&session->lock, flags); 1888 if (session->state == ISCSI_SESSION_FAILED) 1889 ret = SCSI_EH_RESET_TIMER; 1890 spin_unlock_irqrestore(&session->lock, flags); 1891 1892 return ret; 1893 } 1894 1895 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 1896 { 1897 struct scsi_qla_host *ha = to_qla_host(shost); 1898 struct iscsi_cls_host *ihost = shost->shost_data; 1899 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 1900 1901 qla4xxx_get_firmware_state(ha); 1902 1903 switch (ha->addl_fw_state & 0x0F00) { 1904 case FW_ADDSTATE_LINK_SPEED_10MBPS: 1905 speed = ISCSI_PORT_SPEED_10MBPS; 1906 break; 1907 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1908 speed = ISCSI_PORT_SPEED_100MBPS; 1909 break; 1910 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1911 speed = ISCSI_PORT_SPEED_1GBPS; 1912 break; 1913 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1914 speed = ISCSI_PORT_SPEED_10GBPS; 1915 break; 1916 } 1917 ihost->port_speed = speed; 1918 } 1919 1920 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1921 { 1922 struct scsi_qla_host *ha = to_qla_host(shost); 1923 struct iscsi_cls_host *ihost = shost->shost_data; 1924 uint32_t state = ISCSI_PORT_STATE_DOWN; 1925 1926 if (test_bit(AF_LINK_UP, &ha->flags)) 1927 state = ISCSI_PORT_STATE_UP; 1928 1929 ihost->port_state = state; 1930 } 1931 1932 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1933 enum iscsi_host_param param, char *buf) 1934 { 1935 struct scsi_qla_host *ha = to_qla_host(shost); 1936 int len; 1937 1938 switch (param) { 1939 case ISCSI_HOST_PARAM_HWADDRESS: 1940 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1941 break; 1942 case ISCSI_HOST_PARAM_IPADDRESS: 1943 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1944 break; 1945 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1946 len = sprintf(buf, "%s\n", ha->name_string); 1947 break; 1948 case ISCSI_HOST_PARAM_PORT_STATE: 1949 qla4xxx_set_port_state(shost); 1950 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1951 break; 1952 case ISCSI_HOST_PARAM_PORT_SPEED: 1953 qla4xxx_set_port_speed(shost); 1954 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1955 break; 1956 default: 1957 return -ENOSYS; 1958 } 1959 1960 return len; 1961 } 1962 1963 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1964 { 1965 if (ha->iface_ipv4) 1966 return; 1967 1968 /* IPv4 */ 1969 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1970 &qla4xxx_iscsi_transport, 1971 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1972 if (!ha->iface_ipv4) 1973 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1974 "iface0.\n"); 1975 } 1976 1977 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1978 { 1979 if (!ha->iface_ipv6_0) 1980 /* IPv6 iface-0 */ 1981 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1982 &qla4xxx_iscsi_transport, 1983 ISCSI_IFACE_TYPE_IPV6, 0, 1984 0); 1985 if (!ha->iface_ipv6_0) 1986 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1987 "iface0.\n"); 1988 1989 if (!ha->iface_ipv6_1) 1990 /* IPv6 iface-1 */ 1991 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1992 &qla4xxx_iscsi_transport, 1993 ISCSI_IFACE_TYPE_IPV6, 1, 1994 0); 1995 if (!ha->iface_ipv6_1) 1996 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1997 "iface1.\n"); 1998 } 1999 2000 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 2001 { 2002 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 2003 qla4xxx_create_ipv4_iface(ha); 2004 2005 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 2006 qla4xxx_create_ipv6_iface(ha); 2007 } 2008 2009 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 2010 { 2011 if (ha->iface_ipv4) { 2012 iscsi_destroy_iface(ha->iface_ipv4); 2013 ha->iface_ipv4 = NULL; 2014 } 2015 } 2016 2017 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 2018 { 2019 if (ha->iface_ipv6_0) { 2020 iscsi_destroy_iface(ha->iface_ipv6_0); 2021 ha->iface_ipv6_0 = NULL; 2022 } 2023 if (ha->iface_ipv6_1) { 2024 iscsi_destroy_iface(ha->iface_ipv6_1); 2025 ha->iface_ipv6_1 = NULL; 2026 } 2027 } 2028 2029 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 2030 { 2031 qla4xxx_destroy_ipv4_iface(ha); 2032 qla4xxx_destroy_ipv6_iface(ha); 2033 } 2034 2035 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 2036 struct iscsi_iface_param_info *iface_param, 2037 struct addr_ctrl_blk *init_fw_cb) 2038 { 2039 /* 2040 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 2041 * iface_num 1 is valid only for IPv6 Addr. 2042 */ 2043 switch (iface_param->param) { 2044 case ISCSI_NET_PARAM_IPV6_ADDR: 2045 if (iface_param->iface_num & 0x1) 2046 /* IPv6 Addr 1 */ 2047 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 2048 sizeof(init_fw_cb->ipv6_addr1)); 2049 else 2050 /* IPv6 Addr 0 */ 2051 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 2052 sizeof(init_fw_cb->ipv6_addr0)); 2053 break; 2054 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 2055 if (iface_param->iface_num & 0x1) 2056 break; 2057 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 2058 sizeof(init_fw_cb->ipv6_if_id)); 2059 break; 2060 case ISCSI_NET_PARAM_IPV6_ROUTER: 2061 if (iface_param->iface_num & 0x1) 2062 break; 2063 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 2064 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2065 break; 2066 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 2067 /* Autocfg applies to even interface */ 2068 if (iface_param->iface_num & 0x1) 2069 break; 2070 2071 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 2072 init_fw_cb->ipv6_addtl_opts &= 2073 cpu_to_le16( 2074 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2075 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 2076 init_fw_cb->ipv6_addtl_opts |= 2077 cpu_to_le16( 2078 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2079 else 2080 ql4_printk(KERN_ERR, ha, 2081 "Invalid autocfg setting for IPv6 addr\n"); 2082 break; 2083 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2084 /* Autocfg applies to even interface */ 2085 if (iface_param->iface_num & 0x1) 2086 break; 2087 2088 if (iface_param->value[0] == 2089 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 2090 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 2091 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2092 else if (iface_param->value[0] == 2093 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 2094 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 2095 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2096 else 2097 ql4_printk(KERN_ERR, ha, 2098 "Invalid autocfg setting for IPv6 linklocal addr\n"); 2099 break; 2100 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 2101 /* Autocfg applies to even interface */ 2102 if (iface_param->iface_num & 0x1) 2103 break; 2104 2105 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 2106 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 2107 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2108 break; 2109 case ISCSI_NET_PARAM_IFACE_ENABLE: 2110 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2111 init_fw_cb->ipv6_opts |= 2112 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 2113 qla4xxx_create_ipv6_iface(ha); 2114 } else { 2115 init_fw_cb->ipv6_opts &= 2116 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 2117 0xFFFF); 2118 qla4xxx_destroy_ipv6_iface(ha); 2119 } 2120 break; 2121 case ISCSI_NET_PARAM_VLAN_TAG: 2122 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 2123 break; 2124 init_fw_cb->ipv6_vlan_tag = 2125 cpu_to_be16(*(uint16_t *)iface_param->value); 2126 break; 2127 case ISCSI_NET_PARAM_VLAN_ENABLED: 2128 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2129 init_fw_cb->ipv6_opts |= 2130 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 2131 else 2132 init_fw_cb->ipv6_opts &= 2133 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 2134 break; 2135 case ISCSI_NET_PARAM_MTU: 2136 init_fw_cb->eth_mtu_size = 2137 cpu_to_le16(*(uint16_t *)iface_param->value); 2138 break; 2139 case ISCSI_NET_PARAM_PORT: 2140 /* Autocfg applies to even interface */ 2141 if (iface_param->iface_num & 0x1) 2142 break; 2143 2144 init_fw_cb->ipv6_port = 2145 cpu_to_le16(*(uint16_t *)iface_param->value); 2146 break; 2147 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2148 if (iface_param->iface_num & 0x1) 2149 break; 2150 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2151 init_fw_cb->ipv6_tcp_opts |= 2152 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2153 else 2154 init_fw_cb->ipv6_tcp_opts &= 2155 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE & 2156 0xFFFF); 2157 break; 2158 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2159 if (iface_param->iface_num & 0x1) 2160 break; 2161 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2162 init_fw_cb->ipv6_tcp_opts |= 2163 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2164 else 2165 init_fw_cb->ipv6_tcp_opts &= 2166 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2167 break; 2168 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2169 if (iface_param->iface_num & 0x1) 2170 break; 2171 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2172 init_fw_cb->ipv6_tcp_opts |= 2173 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2174 else 2175 init_fw_cb->ipv6_tcp_opts &= 2176 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2177 break; 2178 case ISCSI_NET_PARAM_TCP_WSF: 2179 if (iface_param->iface_num & 0x1) 2180 break; 2181 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; 2182 break; 2183 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2184 if (iface_param->iface_num & 0x1) 2185 break; 2186 init_fw_cb->ipv6_tcp_opts &= 2187 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); 2188 init_fw_cb->ipv6_tcp_opts |= 2189 cpu_to_le16((iface_param->value[0] << 1) & 2190 IPV6_TCPOPT_TIMER_SCALE); 2191 break; 2192 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2193 if (iface_param->iface_num & 0x1) 2194 break; 2195 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2196 init_fw_cb->ipv6_tcp_opts |= 2197 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); 2198 else 2199 init_fw_cb->ipv6_tcp_opts &= 2200 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); 2201 break; 2202 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 2203 if (iface_param->iface_num & 0x1) 2204 break; 2205 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2206 init_fw_cb->ipv6_opts |= 2207 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2208 else 2209 init_fw_cb->ipv6_opts &= 2210 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2211 break; 2212 case ISCSI_NET_PARAM_REDIRECT_EN: 2213 if (iface_param->iface_num & 0x1) 2214 break; 2215 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2216 init_fw_cb->ipv6_opts |= 2217 cpu_to_le16(IPV6_OPT_REDIRECT_EN); 2218 else 2219 init_fw_cb->ipv6_opts &= 2220 cpu_to_le16(~IPV6_OPT_REDIRECT_EN); 2221 break; 2222 case ISCSI_NET_PARAM_IPV6_MLD_EN: 2223 if (iface_param->iface_num & 0x1) 2224 break; 2225 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2226 init_fw_cb->ipv6_addtl_opts |= 2227 cpu_to_le16(IPV6_ADDOPT_MLD_EN); 2228 else 2229 init_fw_cb->ipv6_addtl_opts &= 2230 cpu_to_le16(~IPV6_ADDOPT_MLD_EN); 2231 break; 2232 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 2233 if (iface_param->iface_num & 0x1) 2234 break; 2235 init_fw_cb->ipv6_flow_lbl = 2236 cpu_to_le16(*(uint16_t *)iface_param->value); 2237 break; 2238 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 2239 if (iface_param->iface_num & 0x1) 2240 break; 2241 init_fw_cb->ipv6_traffic_class = iface_param->value[0]; 2242 break; 2243 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 2244 if (iface_param->iface_num & 0x1) 2245 break; 2246 init_fw_cb->ipv6_hop_limit = iface_param->value[0]; 2247 break; 2248 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 2249 if (iface_param->iface_num & 0x1) 2250 break; 2251 init_fw_cb->ipv6_nd_reach_time = 2252 cpu_to_le32(*(uint32_t *)iface_param->value); 2253 break; 2254 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 2255 if (iface_param->iface_num & 0x1) 2256 break; 2257 init_fw_cb->ipv6_nd_rexmit_timer = 2258 cpu_to_le32(*(uint32_t *)iface_param->value); 2259 break; 2260 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 2261 if (iface_param->iface_num & 0x1) 2262 break; 2263 init_fw_cb->ipv6_nd_stale_timeout = 2264 cpu_to_le32(*(uint32_t *)iface_param->value); 2265 break; 2266 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 2267 if (iface_param->iface_num & 0x1) 2268 break; 2269 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; 2270 break; 2271 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 2272 if (iface_param->iface_num & 0x1) 2273 break; 2274 init_fw_cb->ipv6_gw_advrt_mtu = 2275 cpu_to_le32(*(uint32_t *)iface_param->value); 2276 break; 2277 default: 2278 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 2279 iface_param->param); 2280 break; 2281 } 2282 } 2283 2284 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 2285 struct iscsi_iface_param_info *iface_param, 2286 struct addr_ctrl_blk *init_fw_cb) 2287 { 2288 switch (iface_param->param) { 2289 case ISCSI_NET_PARAM_IPV4_ADDR: 2290 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 2291 sizeof(init_fw_cb->ipv4_addr)); 2292 break; 2293 case ISCSI_NET_PARAM_IPV4_SUBNET: 2294 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 2295 sizeof(init_fw_cb->ipv4_subnet)); 2296 break; 2297 case ISCSI_NET_PARAM_IPV4_GW: 2298 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 2299 sizeof(init_fw_cb->ipv4_gw_addr)); 2300 break; 2301 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 2302 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 2303 init_fw_cb->ipv4_tcp_opts |= 2304 cpu_to_le16(TCPOPT_DHCP_ENABLE); 2305 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 2306 init_fw_cb->ipv4_tcp_opts &= 2307 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 2308 else 2309 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 2310 break; 2311 case ISCSI_NET_PARAM_IFACE_ENABLE: 2312 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2313 init_fw_cb->ipv4_ip_opts |= 2314 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 2315 qla4xxx_create_ipv4_iface(ha); 2316 } else { 2317 init_fw_cb->ipv4_ip_opts &= 2318 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 2319 0xFFFF); 2320 qla4xxx_destroy_ipv4_iface(ha); 2321 } 2322 break; 2323 case ISCSI_NET_PARAM_VLAN_TAG: 2324 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 2325 break; 2326 init_fw_cb->ipv4_vlan_tag = 2327 cpu_to_be16(*(uint16_t *)iface_param->value); 2328 break; 2329 case ISCSI_NET_PARAM_VLAN_ENABLED: 2330 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2331 init_fw_cb->ipv4_ip_opts |= 2332 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 2333 else 2334 init_fw_cb->ipv4_ip_opts &= 2335 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 2336 break; 2337 case ISCSI_NET_PARAM_MTU: 2338 init_fw_cb->eth_mtu_size = 2339 cpu_to_le16(*(uint16_t *)iface_param->value); 2340 break; 2341 case ISCSI_NET_PARAM_PORT: 2342 init_fw_cb->ipv4_port = 2343 cpu_to_le16(*(uint16_t *)iface_param->value); 2344 break; 2345 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2346 if (iface_param->iface_num & 0x1) 2347 break; 2348 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2349 init_fw_cb->ipv4_tcp_opts |= 2350 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); 2351 else 2352 init_fw_cb->ipv4_tcp_opts &= 2353 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE & 2354 0xFFFF); 2355 break; 2356 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2357 if (iface_param->iface_num & 0x1) 2358 break; 2359 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2360 init_fw_cb->ipv4_tcp_opts |= 2361 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE); 2362 else 2363 init_fw_cb->ipv4_tcp_opts &= 2364 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); 2365 break; 2366 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2367 if (iface_param->iface_num & 0x1) 2368 break; 2369 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2370 init_fw_cb->ipv4_tcp_opts |= 2371 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); 2372 else 2373 init_fw_cb->ipv4_tcp_opts &= 2374 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); 2375 break; 2376 case ISCSI_NET_PARAM_TCP_WSF: 2377 if (iface_param->iface_num & 0x1) 2378 break; 2379 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; 2380 break; 2381 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2382 if (iface_param->iface_num & 0x1) 2383 break; 2384 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); 2385 init_fw_cb->ipv4_tcp_opts |= 2386 cpu_to_le16((iface_param->value[0] << 1) & 2387 TCPOPT_TIMER_SCALE); 2388 break; 2389 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2390 if (iface_param->iface_num & 0x1) 2391 break; 2392 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2393 init_fw_cb->ipv4_tcp_opts |= 2394 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); 2395 else 2396 init_fw_cb->ipv4_tcp_opts &= 2397 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); 2398 break; 2399 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 2400 if (iface_param->iface_num & 0x1) 2401 break; 2402 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2403 init_fw_cb->ipv4_tcp_opts |= 2404 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); 2405 else 2406 init_fw_cb->ipv4_tcp_opts &= 2407 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); 2408 break; 2409 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 2410 if (iface_param->iface_num & 0x1) 2411 break; 2412 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2413 init_fw_cb->ipv4_tcp_opts |= 2414 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); 2415 else 2416 init_fw_cb->ipv4_tcp_opts &= 2417 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); 2418 break; 2419 case ISCSI_NET_PARAM_IPV4_TOS_EN: 2420 if (iface_param->iface_num & 0x1) 2421 break; 2422 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2423 init_fw_cb->ipv4_ip_opts |= 2424 cpu_to_le16(IPOPT_IPV4_TOS_EN); 2425 else 2426 init_fw_cb->ipv4_ip_opts &= 2427 cpu_to_le16(~IPOPT_IPV4_TOS_EN); 2428 break; 2429 case ISCSI_NET_PARAM_IPV4_TOS: 2430 if (iface_param->iface_num & 0x1) 2431 break; 2432 init_fw_cb->ipv4_tos = iface_param->value[0]; 2433 break; 2434 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 2435 if (iface_param->iface_num & 0x1) 2436 break; 2437 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2438 init_fw_cb->ipv4_ip_opts |= 2439 cpu_to_le16(IPOPT_GRAT_ARP_EN); 2440 else 2441 init_fw_cb->ipv4_ip_opts &= 2442 cpu_to_le16(~IPOPT_GRAT_ARP_EN); 2443 break; 2444 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 2445 if (iface_param->iface_num & 0x1) 2446 break; 2447 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2448 init_fw_cb->ipv4_ip_opts |= 2449 cpu_to_le16(IPOPT_ALT_CID_EN); 2450 else 2451 init_fw_cb->ipv4_ip_opts &= 2452 cpu_to_le16(~IPOPT_ALT_CID_EN); 2453 break; 2454 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 2455 if (iface_param->iface_num & 0x1) 2456 break; 2457 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, 2458 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); 2459 init_fw_cb->ipv4_dhcp_alt_cid_len = 2460 strlen(init_fw_cb->ipv4_dhcp_alt_cid); 2461 break; 2462 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 2463 if (iface_param->iface_num & 0x1) 2464 break; 2465 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2466 init_fw_cb->ipv4_ip_opts |= 2467 cpu_to_le16(IPOPT_REQ_VID_EN); 2468 else 2469 init_fw_cb->ipv4_ip_opts &= 2470 cpu_to_le16(~IPOPT_REQ_VID_EN); 2471 break; 2472 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 2473 if (iface_param->iface_num & 0x1) 2474 break; 2475 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2476 init_fw_cb->ipv4_ip_opts |= 2477 cpu_to_le16(IPOPT_USE_VID_EN); 2478 else 2479 init_fw_cb->ipv4_ip_opts &= 2480 cpu_to_le16(~IPOPT_USE_VID_EN); 2481 break; 2482 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 2483 if (iface_param->iface_num & 0x1) 2484 break; 2485 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, 2486 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); 2487 init_fw_cb->ipv4_dhcp_vid_len = 2488 strlen(init_fw_cb->ipv4_dhcp_vid); 2489 break; 2490 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 2491 if (iface_param->iface_num & 0x1) 2492 break; 2493 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2494 init_fw_cb->ipv4_ip_opts |= 2495 cpu_to_le16(IPOPT_LEARN_IQN_EN); 2496 else 2497 init_fw_cb->ipv4_ip_opts &= 2498 cpu_to_le16(~IPOPT_LEARN_IQN_EN); 2499 break; 2500 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 2501 if (iface_param->iface_num & 0x1) 2502 break; 2503 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2504 init_fw_cb->ipv4_ip_opts |= 2505 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); 2506 else 2507 init_fw_cb->ipv4_ip_opts &= 2508 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); 2509 break; 2510 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 2511 if (iface_param->iface_num & 0x1) 2512 break; 2513 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2514 init_fw_cb->ipv4_ip_opts |= 2515 cpu_to_le16(IPOPT_IN_FORWARD_EN); 2516 else 2517 init_fw_cb->ipv4_ip_opts &= 2518 cpu_to_le16(~IPOPT_IN_FORWARD_EN); 2519 break; 2520 case ISCSI_NET_PARAM_REDIRECT_EN: 2521 if (iface_param->iface_num & 0x1) 2522 break; 2523 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2524 init_fw_cb->ipv4_ip_opts |= 2525 cpu_to_le16(IPOPT_ARP_REDIRECT_EN); 2526 else 2527 init_fw_cb->ipv4_ip_opts &= 2528 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); 2529 break; 2530 case ISCSI_NET_PARAM_IPV4_TTL: 2531 if (iface_param->iface_num & 0x1) 2532 break; 2533 init_fw_cb->ipv4_ttl = iface_param->value[0]; 2534 break; 2535 default: 2536 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 2537 iface_param->param); 2538 break; 2539 } 2540 } 2541 2542 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, 2543 struct iscsi_iface_param_info *iface_param, 2544 struct addr_ctrl_blk *init_fw_cb) 2545 { 2546 switch (iface_param->param) { 2547 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 2548 if (iface_param->iface_num & 0x1) 2549 break; 2550 init_fw_cb->def_timeout = 2551 cpu_to_le16(*(uint16_t *)iface_param->value); 2552 break; 2553 case ISCSI_IFACE_PARAM_HDRDGST_EN: 2554 if (iface_param->iface_num & 0x1) 2555 break; 2556 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2557 init_fw_cb->iscsi_opts |= 2558 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); 2559 else 2560 init_fw_cb->iscsi_opts &= 2561 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); 2562 break; 2563 case ISCSI_IFACE_PARAM_DATADGST_EN: 2564 if (iface_param->iface_num & 0x1) 2565 break; 2566 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2567 init_fw_cb->iscsi_opts |= 2568 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); 2569 else 2570 init_fw_cb->iscsi_opts &= 2571 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); 2572 break; 2573 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 2574 if (iface_param->iface_num & 0x1) 2575 break; 2576 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2577 init_fw_cb->iscsi_opts |= 2578 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); 2579 else 2580 init_fw_cb->iscsi_opts &= 2581 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); 2582 break; 2583 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 2584 if (iface_param->iface_num & 0x1) 2585 break; 2586 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2587 init_fw_cb->iscsi_opts |= 2588 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); 2589 else 2590 init_fw_cb->iscsi_opts &= 2591 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); 2592 break; 2593 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 2594 if (iface_param->iface_num & 0x1) 2595 break; 2596 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2597 init_fw_cb->iscsi_opts |= 2598 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); 2599 else 2600 init_fw_cb->iscsi_opts &= 2601 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); 2602 break; 2603 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 2604 if (iface_param->iface_num & 0x1) 2605 break; 2606 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2607 init_fw_cb->iscsi_opts |= 2608 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); 2609 else 2610 init_fw_cb->iscsi_opts &= 2611 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); 2612 break; 2613 case ISCSI_IFACE_PARAM_ERL: 2614 if (iface_param->iface_num & 0x1) 2615 break; 2616 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); 2617 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & 2618 ISCSIOPTS_ERL); 2619 break; 2620 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 2621 if (iface_param->iface_num & 0x1) 2622 break; 2623 init_fw_cb->iscsi_max_pdu_size = 2624 cpu_to_le32(*(uint32_t *)iface_param->value) / 2625 BYTE_UNITS; 2626 break; 2627 case ISCSI_IFACE_PARAM_FIRST_BURST: 2628 if (iface_param->iface_num & 0x1) 2629 break; 2630 init_fw_cb->iscsi_fburst_len = 2631 cpu_to_le32(*(uint32_t *)iface_param->value) / 2632 BYTE_UNITS; 2633 break; 2634 case ISCSI_IFACE_PARAM_MAX_R2T: 2635 if (iface_param->iface_num & 0x1) 2636 break; 2637 init_fw_cb->iscsi_max_outstnd_r2t = 2638 cpu_to_le16(*(uint16_t *)iface_param->value); 2639 break; 2640 case ISCSI_IFACE_PARAM_MAX_BURST: 2641 if (iface_param->iface_num & 0x1) 2642 break; 2643 init_fw_cb->iscsi_max_burst_len = 2644 cpu_to_le32(*(uint32_t *)iface_param->value) / 2645 BYTE_UNITS; 2646 break; 2647 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 2648 if (iface_param->iface_num & 0x1) 2649 break; 2650 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2651 init_fw_cb->iscsi_opts |= 2652 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); 2653 else 2654 init_fw_cb->iscsi_opts &= 2655 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); 2656 break; 2657 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 2658 if (iface_param->iface_num & 0x1) 2659 break; 2660 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2661 init_fw_cb->iscsi_opts |= 2662 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); 2663 else 2664 init_fw_cb->iscsi_opts &= 2665 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); 2666 break; 2667 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 2668 if (iface_param->iface_num & 0x1) 2669 break; 2670 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2671 init_fw_cb->iscsi_opts |= 2672 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); 2673 else 2674 init_fw_cb->iscsi_opts &= 2675 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); 2676 break; 2677 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 2678 if (iface_param->iface_num & 0x1) 2679 break; 2680 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2681 init_fw_cb->iscsi_opts |= 2682 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2683 else 2684 init_fw_cb->iscsi_opts &= 2685 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2686 break; 2687 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 2688 if (iface_param->iface_num & 0x1) 2689 break; 2690 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2691 init_fw_cb->iscsi_opts |= 2692 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2693 else 2694 init_fw_cb->iscsi_opts &= 2695 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2696 break; 2697 default: 2698 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", 2699 iface_param->param); 2700 break; 2701 } 2702 } 2703 2704 static void 2705 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 2706 { 2707 struct addr_ctrl_blk_def *acb; 2708 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 2709 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 2710 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 2711 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 2712 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 2713 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 2714 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 2715 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 2716 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 2717 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 2718 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 2719 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 2720 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 2721 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 2722 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 2723 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 2724 } 2725 2726 static int 2727 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 2728 { 2729 struct scsi_qla_host *ha = to_qla_host(shost); 2730 int rval = 0; 2731 struct iscsi_iface_param_info *iface_param = NULL; 2732 struct addr_ctrl_blk *init_fw_cb = NULL; 2733 dma_addr_t init_fw_cb_dma; 2734 uint32_t mbox_cmd[MBOX_REG_COUNT]; 2735 uint32_t mbox_sts[MBOX_REG_COUNT]; 2736 uint32_t rem = len; 2737 struct nlattr *attr; 2738 2739 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 2740 sizeof(struct addr_ctrl_blk), 2741 &init_fw_cb_dma, GFP_KERNEL); 2742 if (!init_fw_cb) { 2743 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 2744 __func__); 2745 return -ENOMEM; 2746 } 2747 2748 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 2749 memset(&mbox_sts, 0, sizeof(mbox_sts)); 2750 2751 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 2752 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 2753 rval = -EIO; 2754 goto exit_init_fw_cb; 2755 } 2756 2757 nla_for_each_attr(attr, data, len, rem) { 2758 if (nla_len(attr) < sizeof(*iface_param)) { 2759 rval = -EINVAL; 2760 goto exit_init_fw_cb; 2761 } 2762 2763 iface_param = nla_data(attr); 2764 2765 if (iface_param->param_type == ISCSI_NET_PARAM) { 2766 switch (iface_param->iface_type) { 2767 case ISCSI_IFACE_TYPE_IPV4: 2768 switch (iface_param->iface_num) { 2769 case 0: 2770 qla4xxx_set_ipv4(ha, iface_param, 2771 init_fw_cb); 2772 break; 2773 default: 2774 /* Cannot have more than one IPv4 interface */ 2775 ql4_printk(KERN_ERR, ha, 2776 "Invalid IPv4 iface number = %d\n", 2777 iface_param->iface_num); 2778 break; 2779 } 2780 break; 2781 case ISCSI_IFACE_TYPE_IPV6: 2782 switch (iface_param->iface_num) { 2783 case 0: 2784 case 1: 2785 qla4xxx_set_ipv6(ha, iface_param, 2786 init_fw_cb); 2787 break; 2788 default: 2789 /* Cannot have more than two IPv6 interface */ 2790 ql4_printk(KERN_ERR, ha, 2791 "Invalid IPv6 iface number = %d\n", 2792 iface_param->iface_num); 2793 break; 2794 } 2795 break; 2796 default: 2797 ql4_printk(KERN_ERR, ha, 2798 "Invalid iface type\n"); 2799 break; 2800 } 2801 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { 2802 qla4xxx_set_iscsi_param(ha, iface_param, 2803 init_fw_cb); 2804 } else { 2805 continue; 2806 } 2807 } 2808 2809 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 2810 2811 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 2812 sizeof(struct addr_ctrl_blk), 2813 FLASH_OPT_RMW_COMMIT); 2814 if (rval != QLA_SUCCESS) { 2815 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 2816 __func__); 2817 rval = -EIO; 2818 goto exit_init_fw_cb; 2819 } 2820 2821 rval = qla4xxx_disable_acb(ha); 2822 if (rval != QLA_SUCCESS) { 2823 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 2824 __func__); 2825 rval = -EIO; 2826 goto exit_init_fw_cb; 2827 } 2828 2829 wait_for_completion_timeout(&ha->disable_acb_comp, 2830 DISABLE_ACB_TOV * HZ); 2831 2832 qla4xxx_initcb_to_acb(init_fw_cb); 2833 2834 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 2835 if (rval != QLA_SUCCESS) { 2836 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 2837 __func__); 2838 rval = -EIO; 2839 goto exit_init_fw_cb; 2840 } 2841 2842 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2843 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 2844 init_fw_cb_dma); 2845 2846 exit_init_fw_cb: 2847 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 2848 init_fw_cb, init_fw_cb_dma); 2849 2850 return rval; 2851 } 2852 2853 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 2854 enum iscsi_param param, char *buf) 2855 { 2856 struct iscsi_session *sess = cls_sess->dd_data; 2857 struct ddb_entry *ddb_entry = sess->dd_data; 2858 struct scsi_qla_host *ha = ddb_entry->ha; 2859 struct iscsi_cls_conn *cls_conn = ddb_entry->conn; 2860 struct ql4_chap_table chap_tbl; 2861 int rval, len; 2862 uint16_t idx; 2863 2864 memset(&chap_tbl, 0, sizeof(chap_tbl)); 2865 switch (param) { 2866 case ISCSI_PARAM_CHAP_IN_IDX: 2867 rval = qla4xxx_get_chap_index(ha, sess->username_in, 2868 sess->password_in, BIDI_CHAP, 2869 &idx); 2870 if (rval) 2871 len = sprintf(buf, "\n"); 2872 else 2873 len = sprintf(buf, "%hu\n", idx); 2874 break; 2875 case ISCSI_PARAM_CHAP_OUT_IDX: 2876 if (ddb_entry->ddb_type == FLASH_DDB) { 2877 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 2878 idx = ddb_entry->chap_tbl_idx; 2879 rval = QLA_SUCCESS; 2880 } else { 2881 rval = QLA_ERROR; 2882 } 2883 } else { 2884 rval = qla4xxx_get_chap_index(ha, sess->username, 2885 sess->password, 2886 LOCAL_CHAP, &idx); 2887 } 2888 if (rval) 2889 len = sprintf(buf, "\n"); 2890 else 2891 len = sprintf(buf, "%hu\n", idx); 2892 break; 2893 case ISCSI_PARAM_USERNAME: 2894 case ISCSI_PARAM_PASSWORD: 2895 /* First, populate session username and password for FLASH DDB, 2896 * if not already done. This happens when session login fails 2897 * for a FLASH DDB. 2898 */ 2899 if (ddb_entry->ddb_type == FLASH_DDB && 2900 ddb_entry->chap_tbl_idx != INVALID_ENTRY && 2901 !sess->username && !sess->password) { 2902 idx = ddb_entry->chap_tbl_idx; 2903 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 2904 chap_tbl.secret, 2905 idx); 2906 if (!rval) { 2907 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 2908 (char *)chap_tbl.name, 2909 strlen((char *)chap_tbl.name)); 2910 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 2911 (char *)chap_tbl.secret, 2912 chap_tbl.secret_len); 2913 } 2914 } 2915 fallthrough; 2916 default: 2917 return iscsi_session_get_param(cls_sess, param, buf); 2918 } 2919 2920 return len; 2921 } 2922 2923 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 2924 enum iscsi_param param, char *buf) 2925 { 2926 struct iscsi_conn *conn; 2927 struct qla_conn *qla_conn; 2928 struct sockaddr *dst_addr; 2929 2930 conn = cls_conn->dd_data; 2931 qla_conn = conn->dd_data; 2932 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 2933 2934 switch (param) { 2935 case ISCSI_PARAM_CONN_PORT: 2936 case ISCSI_PARAM_CONN_ADDRESS: 2937 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 2938 dst_addr, param, buf); 2939 default: 2940 return iscsi_conn_get_param(cls_conn, param, buf); 2941 } 2942 } 2943 2944 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 2945 { 2946 uint32_t mbx_sts = 0; 2947 uint16_t tmp_ddb_index; 2948 int ret; 2949 2950 get_ddb_index: 2951 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 2952 2953 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 2954 DEBUG2(ql4_printk(KERN_INFO, ha, 2955 "Free DDB index not available\n")); 2956 ret = QLA_ERROR; 2957 goto exit_get_ddb_index; 2958 } 2959 2960 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 2961 goto get_ddb_index; 2962 2963 DEBUG2(ql4_printk(KERN_INFO, ha, 2964 "Found a free DDB index at %d\n", tmp_ddb_index)); 2965 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 2966 if (ret == QLA_ERROR) { 2967 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 2968 ql4_printk(KERN_INFO, ha, 2969 "DDB index = %d not available trying next\n", 2970 tmp_ddb_index); 2971 goto get_ddb_index; 2972 } 2973 DEBUG2(ql4_printk(KERN_INFO, ha, 2974 "Free FW DDB not available\n")); 2975 } 2976 2977 *ddb_index = tmp_ddb_index; 2978 2979 exit_get_ddb_index: 2980 return ret; 2981 } 2982 2983 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 2984 struct ddb_entry *ddb_entry, 2985 char *existing_ipaddr, 2986 char *user_ipaddr) 2987 { 2988 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 2989 char formatted_ipaddr[DDB_IPADDR_LEN]; 2990 int status = QLA_SUCCESS, ret = 0; 2991 2992 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 2993 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2994 '\0', NULL); 2995 if (ret == 0) { 2996 status = QLA_ERROR; 2997 goto out_match; 2998 } 2999 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 3000 } else { 3001 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 3002 '\0', NULL); 3003 if (ret == 0) { 3004 status = QLA_ERROR; 3005 goto out_match; 3006 } 3007 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 3008 } 3009 3010 if (strcmp(existing_ipaddr, formatted_ipaddr)) 3011 status = QLA_ERROR; 3012 3013 out_match: 3014 return status; 3015 } 3016 3017 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 3018 struct iscsi_cls_conn *cls_conn) 3019 { 3020 int idx = 0, max_ddbs, rval; 3021 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3022 struct iscsi_session *sess, *existing_sess; 3023 struct iscsi_conn *conn, *existing_conn; 3024 struct ddb_entry *ddb_entry; 3025 3026 sess = cls_sess->dd_data; 3027 conn = cls_conn->dd_data; 3028 3029 if (sess->targetname == NULL || 3030 conn->persistent_address == NULL || 3031 conn->persistent_port == 0) 3032 return QLA_ERROR; 3033 3034 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 3035 MAX_DEV_DB_ENTRIES; 3036 3037 for (idx = 0; idx < max_ddbs; idx++) { 3038 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 3039 if (ddb_entry == NULL) 3040 continue; 3041 3042 if (ddb_entry->ddb_type != FLASH_DDB) 3043 continue; 3044 3045 existing_sess = ddb_entry->sess->dd_data; 3046 existing_conn = ddb_entry->conn->dd_data; 3047 3048 if (existing_sess->targetname == NULL || 3049 existing_conn->persistent_address == NULL || 3050 existing_conn->persistent_port == 0) 3051 continue; 3052 3053 DEBUG2(ql4_printk(KERN_INFO, ha, 3054 "IQN = %s User IQN = %s\n", 3055 existing_sess->targetname, 3056 sess->targetname)); 3057 3058 DEBUG2(ql4_printk(KERN_INFO, ha, 3059 "IP = %s User IP = %s\n", 3060 existing_conn->persistent_address, 3061 conn->persistent_address)); 3062 3063 DEBUG2(ql4_printk(KERN_INFO, ha, 3064 "Port = %d User Port = %d\n", 3065 existing_conn->persistent_port, 3066 conn->persistent_port)); 3067 3068 if (strcmp(existing_sess->targetname, sess->targetname)) 3069 continue; 3070 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 3071 existing_conn->persistent_address, 3072 conn->persistent_address); 3073 if (rval == QLA_ERROR) 3074 continue; 3075 if (existing_conn->persistent_port != conn->persistent_port) 3076 continue; 3077 break; 3078 } 3079 3080 if (idx == max_ddbs) 3081 return QLA_ERROR; 3082 3083 DEBUG2(ql4_printk(KERN_INFO, ha, 3084 "Match found in fwdb sessions\n")); 3085 return QLA_SUCCESS; 3086 } 3087 3088 static struct iscsi_cls_session * 3089 qla4xxx_session_create(struct iscsi_endpoint *ep, 3090 uint16_t cmds_max, uint16_t qdepth, 3091 uint32_t initial_cmdsn) 3092 { 3093 struct iscsi_cls_session *cls_sess; 3094 struct scsi_qla_host *ha; 3095 struct qla_endpoint *qla_ep; 3096 struct ddb_entry *ddb_entry; 3097 uint16_t ddb_index; 3098 struct iscsi_session *sess; 3099 int ret; 3100 3101 if (!ep) { 3102 printk(KERN_ERR "qla4xxx: missing ep.\n"); 3103 return NULL; 3104 } 3105 3106 qla_ep = ep->dd_data; 3107 ha = to_qla_host(qla_ep->host); 3108 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3109 ha->host_no)); 3110 3111 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 3112 if (ret == QLA_ERROR) 3113 return NULL; 3114 3115 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 3116 cmds_max, sizeof(struct ddb_entry), 3117 sizeof(struct ql4_task_data), 3118 initial_cmdsn, ddb_index); 3119 if (!cls_sess) 3120 return NULL; 3121 3122 sess = cls_sess->dd_data; 3123 ddb_entry = sess->dd_data; 3124 ddb_entry->fw_ddb_index = ddb_index; 3125 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 3126 ddb_entry->ha = ha; 3127 ddb_entry->sess = cls_sess; 3128 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 3129 ddb_entry->ddb_change = qla4xxx_ddb_change; 3130 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); 3131 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 3132 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 3133 ha->tot_ddbs++; 3134 3135 return cls_sess; 3136 } 3137 3138 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 3139 { 3140 struct iscsi_session *sess; 3141 struct ddb_entry *ddb_entry; 3142 struct scsi_qla_host *ha; 3143 unsigned long flags, wtime; 3144 struct dev_db_entry *fw_ddb_entry = NULL; 3145 dma_addr_t fw_ddb_entry_dma; 3146 uint32_t ddb_state; 3147 int ret; 3148 3149 sess = cls_sess->dd_data; 3150 ddb_entry = sess->dd_data; 3151 ha = ddb_entry->ha; 3152 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3153 ha->host_no)); 3154 3155 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3156 &fw_ddb_entry_dma, GFP_KERNEL); 3157 if (!fw_ddb_entry) { 3158 ql4_printk(KERN_ERR, ha, 3159 "%s: Unable to allocate dma buffer\n", __func__); 3160 goto destroy_session; 3161 } 3162 3163 wtime = jiffies + (HZ * LOGOUT_TOV); 3164 do { 3165 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 3166 fw_ddb_entry, fw_ddb_entry_dma, 3167 NULL, NULL, &ddb_state, NULL, 3168 NULL, NULL); 3169 if (ret == QLA_ERROR) 3170 goto destroy_session; 3171 3172 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 3173 (ddb_state == DDB_DS_SESSION_FAILED)) 3174 goto destroy_session; 3175 3176 schedule_timeout_uninterruptible(HZ); 3177 } while ((time_after(wtime, jiffies))); 3178 3179 destroy_session: 3180 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 3181 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) 3182 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 3183 spin_lock_irqsave(&ha->hardware_lock, flags); 3184 qla4xxx_free_ddb(ha, ddb_entry); 3185 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3186 3187 iscsi_session_teardown(cls_sess); 3188 3189 if (fw_ddb_entry) 3190 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3191 fw_ddb_entry, fw_ddb_entry_dma); 3192 } 3193 3194 static struct iscsi_cls_conn * 3195 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 3196 { 3197 struct iscsi_cls_conn *cls_conn; 3198 struct iscsi_session *sess; 3199 struct ddb_entry *ddb_entry; 3200 struct scsi_qla_host *ha; 3201 3202 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 3203 conn_idx); 3204 if (!cls_conn) { 3205 pr_info("%s: Can not create connection for conn_idx = %u\n", 3206 __func__, conn_idx); 3207 return NULL; 3208 } 3209 3210 sess = cls_sess->dd_data; 3211 ddb_entry = sess->dd_data; 3212 ddb_entry->conn = cls_conn; 3213 3214 ha = ddb_entry->ha; 3215 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__, 3216 conn_idx)); 3217 return cls_conn; 3218 } 3219 3220 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 3221 struct iscsi_cls_conn *cls_conn, 3222 uint64_t transport_fd, int is_leading) 3223 { 3224 struct iscsi_conn *conn; 3225 struct qla_conn *qla_conn; 3226 struct iscsi_endpoint *ep; 3227 struct ddb_entry *ddb_entry; 3228 struct scsi_qla_host *ha; 3229 struct iscsi_session *sess; 3230 3231 sess = cls_session->dd_data; 3232 ddb_entry = sess->dd_data; 3233 ha = ddb_entry->ha; 3234 3235 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3236 cls_session->sid, cls_conn->cid)); 3237 3238 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 3239 return -EINVAL; 3240 ep = iscsi_lookup_endpoint(transport_fd); 3241 if (!ep) 3242 return -EINVAL; 3243 conn = cls_conn->dd_data; 3244 qla_conn = conn->dd_data; 3245 qla_conn->qla_ep = ep->dd_data; 3246 iscsi_put_endpoint(ep); 3247 return 0; 3248 } 3249 3250 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3251 { 3252 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3253 struct iscsi_session *sess; 3254 struct ddb_entry *ddb_entry; 3255 struct scsi_qla_host *ha; 3256 struct dev_db_entry *fw_ddb_entry = NULL; 3257 dma_addr_t fw_ddb_entry_dma; 3258 uint32_t mbx_sts = 0; 3259 int ret = 0; 3260 int status = QLA_SUCCESS; 3261 3262 sess = cls_sess->dd_data; 3263 ddb_entry = sess->dd_data; 3264 ha = ddb_entry->ha; 3265 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3266 cls_sess->sid, cls_conn->cid)); 3267 3268 /* Check if we have matching FW DDB, if yes then do not 3269 * login to this target. This could cause target to logout previous 3270 * connection 3271 */ 3272 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3273 if (ret == QLA_SUCCESS) { 3274 ql4_printk(KERN_INFO, ha, 3275 "Session already exist in FW.\n"); 3276 ret = -EEXIST; 3277 goto exit_conn_start; 3278 } 3279 3280 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3281 &fw_ddb_entry_dma, GFP_KERNEL); 3282 if (!fw_ddb_entry) { 3283 ql4_printk(KERN_ERR, ha, 3284 "%s: Unable to allocate dma buffer\n", __func__); 3285 ret = -ENOMEM; 3286 goto exit_conn_start; 3287 } 3288 3289 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3290 if (ret) { 3291 /* If iscsid is stopped and started then no need to do 3292 * set param again since ddb state will be already 3293 * active and FW does not allow set ddb to an 3294 * active session. 3295 */ 3296 if (mbx_sts) 3297 if (ddb_entry->fw_ddb_device_state == 3298 DDB_DS_SESSION_ACTIVE) { 3299 ddb_entry->unblock_sess(ddb_entry->sess); 3300 goto exit_set_param; 3301 } 3302 3303 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3304 __func__, ddb_entry->fw_ddb_index); 3305 goto exit_conn_start; 3306 } 3307 3308 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3309 if (status == QLA_ERROR) { 3310 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3311 sess->targetname); 3312 ret = -EINVAL; 3313 goto exit_conn_start; 3314 } 3315 3316 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3317 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3318 3319 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3320 ddb_entry->fw_ddb_device_state)); 3321 3322 exit_set_param: 3323 ret = 0; 3324 3325 exit_conn_start: 3326 if (fw_ddb_entry) 3327 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3328 fw_ddb_entry, fw_ddb_entry_dma); 3329 return ret; 3330 } 3331 3332 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3333 { 3334 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3335 struct iscsi_session *sess; 3336 struct scsi_qla_host *ha; 3337 struct ddb_entry *ddb_entry; 3338 int options; 3339 3340 sess = cls_sess->dd_data; 3341 ddb_entry = sess->dd_data; 3342 ha = ddb_entry->ha; 3343 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, 3344 cls_conn->cid)); 3345 3346 options = LOGOUT_OPTION_CLOSE_SESSION; 3347 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3348 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3349 } 3350 3351 static void qla4xxx_task_work(struct work_struct *wdata) 3352 { 3353 struct ql4_task_data *task_data; 3354 struct scsi_qla_host *ha; 3355 struct passthru_status *sts; 3356 struct iscsi_task *task; 3357 struct iscsi_hdr *hdr; 3358 uint8_t *data; 3359 uint32_t data_len; 3360 struct iscsi_conn *conn; 3361 int hdr_len; 3362 itt_t itt; 3363 3364 task_data = container_of(wdata, struct ql4_task_data, task_work); 3365 ha = task_data->ha; 3366 task = task_data->task; 3367 sts = &task_data->sts; 3368 hdr_len = sizeof(struct iscsi_hdr); 3369 3370 DEBUG3(printk(KERN_INFO "Status returned\n")); 3371 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3372 DEBUG3(printk(KERN_INFO "Response buffer")); 3373 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3374 3375 conn = task->conn; 3376 3377 switch (sts->completionStatus) { 3378 case PASSTHRU_STATUS_COMPLETE: 3379 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3380 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3381 itt = sts->handle; 3382 hdr->itt = itt; 3383 data = task_data->resp_buffer + hdr_len; 3384 data_len = task_data->resp_len - hdr_len; 3385 iscsi_complete_pdu(conn, hdr, data, data_len); 3386 break; 3387 default: 3388 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3389 sts->completionStatus); 3390 break; 3391 } 3392 return; 3393 } 3394 3395 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3396 { 3397 struct ql4_task_data *task_data; 3398 struct iscsi_session *sess; 3399 struct ddb_entry *ddb_entry; 3400 struct scsi_qla_host *ha; 3401 int hdr_len; 3402 3403 sess = task->conn->session; 3404 ddb_entry = sess->dd_data; 3405 ha = ddb_entry->ha; 3406 task_data = task->dd_data; 3407 memset(task_data, 0, sizeof(struct ql4_task_data)); 3408 3409 if (task->sc) { 3410 ql4_printk(KERN_INFO, ha, 3411 "%s: SCSI Commands not implemented\n", __func__); 3412 return -EINVAL; 3413 } 3414 3415 hdr_len = sizeof(struct iscsi_hdr); 3416 task_data->ha = ha; 3417 task_data->task = task; 3418 3419 if (task->data_count) { 3420 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3421 task->data_count, 3422 DMA_TO_DEVICE); 3423 } 3424 3425 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3426 __func__, task->conn->max_recv_dlength, hdr_len)); 3427 3428 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3429 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3430 task_data->resp_len, 3431 &task_data->resp_dma, 3432 GFP_ATOMIC); 3433 if (!task_data->resp_buffer) 3434 goto exit_alloc_pdu; 3435 3436 task_data->req_len = task->data_count + hdr_len; 3437 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3438 task_data->req_len, 3439 &task_data->req_dma, 3440 GFP_ATOMIC); 3441 if (!task_data->req_buffer) 3442 goto exit_alloc_pdu; 3443 3444 task->hdr = task_data->req_buffer; 3445 3446 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3447 3448 return 0; 3449 3450 exit_alloc_pdu: 3451 if (task_data->resp_buffer) 3452 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3453 task_data->resp_buffer, task_data->resp_dma); 3454 3455 if (task_data->req_buffer) 3456 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3457 task_data->req_buffer, task_data->req_dma); 3458 return -ENOMEM; 3459 } 3460 3461 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3462 { 3463 struct ql4_task_data *task_data; 3464 struct iscsi_session *sess; 3465 struct ddb_entry *ddb_entry; 3466 struct scsi_qla_host *ha; 3467 int hdr_len; 3468 3469 hdr_len = sizeof(struct iscsi_hdr); 3470 sess = task->conn->session; 3471 ddb_entry = sess->dd_data; 3472 ha = ddb_entry->ha; 3473 task_data = task->dd_data; 3474 3475 if (task->data_count) { 3476 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3477 task->data_count, DMA_TO_DEVICE); 3478 } 3479 3480 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3481 __func__, task->conn->max_recv_dlength, hdr_len)); 3482 3483 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3484 task_data->resp_buffer, task_data->resp_dma); 3485 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3486 task_data->req_buffer, task_data->req_dma); 3487 return; 3488 } 3489 3490 static int qla4xxx_task_xmit(struct iscsi_task *task) 3491 { 3492 struct scsi_cmnd *sc = task->sc; 3493 struct iscsi_session *sess = task->conn->session; 3494 struct ddb_entry *ddb_entry = sess->dd_data; 3495 struct scsi_qla_host *ha = ddb_entry->ha; 3496 3497 if (!sc) 3498 return qla4xxx_send_passthru0(task); 3499 3500 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3501 __func__); 3502 return -ENOSYS; 3503 } 3504 3505 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3506 struct iscsi_bus_flash_conn *conn, 3507 struct dev_db_entry *fw_ddb_entry) 3508 { 3509 unsigned long options = 0; 3510 int rc = 0; 3511 3512 options = le16_to_cpu(fw_ddb_entry->options); 3513 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3514 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3515 rc = iscsi_switch_str_param(&sess->portal_type, 3516 PORTAL_TYPE_IPV6); 3517 if (rc) 3518 goto exit_copy; 3519 } else { 3520 rc = iscsi_switch_str_param(&sess->portal_type, 3521 PORTAL_TYPE_IPV4); 3522 if (rc) 3523 goto exit_copy; 3524 } 3525 3526 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3527 &options); 3528 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3529 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3530 3531 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3532 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3533 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3534 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3535 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3536 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3537 &options); 3538 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3539 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3540 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3541 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3542 &options); 3543 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3544 sess->discovery_auth_optional = 3545 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3546 if (test_bit(ISCSIOPT_ERL1, &options)) 3547 sess->erl |= BIT_1; 3548 if (test_bit(ISCSIOPT_ERL0, &options)) 3549 sess->erl |= BIT_0; 3550 3551 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3552 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3553 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3554 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3555 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3556 conn->tcp_timer_scale |= BIT_3; 3557 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3558 conn->tcp_timer_scale |= BIT_2; 3559 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3560 conn->tcp_timer_scale |= BIT_1; 3561 3562 conn->tcp_timer_scale >>= 1; 3563 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3564 3565 options = le16_to_cpu(fw_ddb_entry->ip_options); 3566 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3567 3568 conn->max_recv_dlength = BYTE_UNITS * 3569 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3570 conn->max_xmit_dlength = BYTE_UNITS * 3571 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3572 sess->first_burst = BYTE_UNITS * 3573 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3574 sess->max_burst = BYTE_UNITS * 3575 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3576 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3577 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3578 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3579 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3580 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3581 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3582 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3583 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3584 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3585 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3586 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3587 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3588 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3589 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3590 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3591 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3592 3593 sess->default_taskmgmt_timeout = 3594 le16_to_cpu(fw_ddb_entry->def_timeout); 3595 conn->port = le16_to_cpu(fw_ddb_entry->port); 3596 3597 options = le16_to_cpu(fw_ddb_entry->options); 3598 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3599 if (!conn->ipaddress) { 3600 rc = -ENOMEM; 3601 goto exit_copy; 3602 } 3603 3604 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3605 if (!conn->redirect_ipaddr) { 3606 rc = -ENOMEM; 3607 goto exit_copy; 3608 } 3609 3610 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3611 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3612 3613 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3614 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3615 3616 conn->link_local_ipv6_addr = kmemdup( 3617 fw_ddb_entry->link_local_ipv6_addr, 3618 IPv6_ADDR_LEN, GFP_KERNEL); 3619 if (!conn->link_local_ipv6_addr) { 3620 rc = -ENOMEM; 3621 goto exit_copy; 3622 } 3623 } else { 3624 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3625 } 3626 3627 if (fw_ddb_entry->iscsi_name[0]) { 3628 rc = iscsi_switch_str_param(&sess->targetname, 3629 (char *)fw_ddb_entry->iscsi_name); 3630 if (rc) 3631 goto exit_copy; 3632 } 3633 3634 if (fw_ddb_entry->iscsi_alias[0]) { 3635 rc = iscsi_switch_str_param(&sess->targetalias, 3636 (char *)fw_ddb_entry->iscsi_alias); 3637 if (rc) 3638 goto exit_copy; 3639 } 3640 3641 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3642 3643 exit_copy: 3644 return rc; 3645 } 3646 3647 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3648 struct iscsi_bus_flash_conn *conn, 3649 struct dev_db_entry *fw_ddb_entry) 3650 { 3651 uint16_t options; 3652 3653 options = le16_to_cpu(fw_ddb_entry->options); 3654 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3655 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3656 options |= BIT_8; 3657 else 3658 options &= ~BIT_8; 3659 3660 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3661 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3662 SET_BITVAL(sess->entry_state, options, BIT_3); 3663 fw_ddb_entry->options = cpu_to_le16(options); 3664 3665 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3666 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3667 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3668 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3669 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3670 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3671 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3672 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3673 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3674 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3675 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3676 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3677 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3678 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3679 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3680 3681 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3682 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3683 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3684 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3685 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3686 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3687 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3688 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3689 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3690 3691 options = le16_to_cpu(fw_ddb_entry->ip_options); 3692 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3693 fw_ddb_entry->ip_options = cpu_to_le16(options); 3694 3695 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3696 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3697 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3698 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3699 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3700 fw_ddb_entry->iscsi_first_burst_len = 3701 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3702 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3703 BYTE_UNITS); 3704 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3705 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3706 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3707 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3708 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3709 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3710 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3711 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3712 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3713 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3714 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3715 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3716 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3717 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3718 fw_ddb_entry->port = cpu_to_le16(conn->port); 3719 fw_ddb_entry->def_timeout = 3720 cpu_to_le16(sess->default_taskmgmt_timeout); 3721 3722 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3723 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3724 else 3725 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3726 3727 if (conn->ipaddress) 3728 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3729 sizeof(fw_ddb_entry->ip_addr)); 3730 3731 if (conn->redirect_ipaddr) 3732 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3733 sizeof(fw_ddb_entry->tgt_addr)); 3734 3735 if (conn->link_local_ipv6_addr) 3736 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3737 conn->link_local_ipv6_addr, 3738 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3739 3740 if (sess->targetname) 3741 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3742 sizeof(fw_ddb_entry->iscsi_name)); 3743 3744 if (sess->targetalias) 3745 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3746 sizeof(fw_ddb_entry->iscsi_alias)); 3747 3748 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3749 3750 return 0; 3751 } 3752 3753 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3754 struct iscsi_session *sess, 3755 struct dev_db_entry *fw_ddb_entry) 3756 { 3757 unsigned long options = 0; 3758 uint16_t ddb_link; 3759 uint16_t disc_parent; 3760 char ip_addr[DDB_IPADDR_LEN]; 3761 3762 options = le16_to_cpu(fw_ddb_entry->options); 3763 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3764 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3765 &options); 3766 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3767 3768 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3769 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3770 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3771 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3772 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3773 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3774 &options); 3775 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3776 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3777 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3778 &options); 3779 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3780 sess->discovery_auth_optional = 3781 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3782 if (test_bit(ISCSIOPT_ERL1, &options)) 3783 sess->erl |= BIT_1; 3784 if (test_bit(ISCSIOPT_ERL0, &options)) 3785 sess->erl |= BIT_0; 3786 3787 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3788 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3789 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3790 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3791 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3792 conn->tcp_timer_scale |= BIT_3; 3793 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3794 conn->tcp_timer_scale |= BIT_2; 3795 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3796 conn->tcp_timer_scale |= BIT_1; 3797 3798 conn->tcp_timer_scale >>= 1; 3799 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3800 3801 options = le16_to_cpu(fw_ddb_entry->ip_options); 3802 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3803 3804 conn->max_recv_dlength = BYTE_UNITS * 3805 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3806 conn->max_xmit_dlength = BYTE_UNITS * 3807 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3808 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3809 sess->first_burst = BYTE_UNITS * 3810 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3811 sess->max_burst = BYTE_UNITS * 3812 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3813 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3814 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3815 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3816 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3817 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3818 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3819 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3820 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3821 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3822 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3823 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3824 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3825 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3826 3827 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3828 if (ddb_link == DDB_ISNS) 3829 disc_parent = ISCSI_DISC_PARENT_ISNS; 3830 else if (ddb_link == DDB_NO_LINK) 3831 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3832 else if (ddb_link < MAX_DDB_ENTRIES) 3833 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3834 else 3835 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3836 3837 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3838 iscsi_get_discovery_parent_name(disc_parent), 0); 3839 3840 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3841 (char *)fw_ddb_entry->iscsi_alias, 0); 3842 3843 options = le16_to_cpu(fw_ddb_entry->options); 3844 if (options & DDB_OPT_IPV6_DEVICE) { 3845 memset(ip_addr, 0, sizeof(ip_addr)); 3846 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3847 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3848 (char *)ip_addr, 0); 3849 } 3850 } 3851 3852 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3853 struct dev_db_entry *fw_ddb_entry, 3854 struct iscsi_cls_session *cls_sess, 3855 struct iscsi_cls_conn *cls_conn) 3856 { 3857 int buflen = 0; 3858 struct iscsi_session *sess; 3859 struct ddb_entry *ddb_entry; 3860 struct ql4_chap_table chap_tbl; 3861 struct iscsi_conn *conn; 3862 char ip_addr[DDB_IPADDR_LEN]; 3863 uint16_t options = 0; 3864 3865 sess = cls_sess->dd_data; 3866 ddb_entry = sess->dd_data; 3867 conn = cls_conn->dd_data; 3868 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3869 3870 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3871 3872 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3873 3874 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3875 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3876 3877 memset(ip_addr, 0, sizeof(ip_addr)); 3878 options = le16_to_cpu(fw_ddb_entry->options); 3879 if (options & DDB_OPT_IPV6_DEVICE) { 3880 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3881 3882 memset(ip_addr, 0, sizeof(ip_addr)); 3883 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3884 } else { 3885 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3886 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3887 } 3888 3889 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3890 (char *)ip_addr, buflen); 3891 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3892 (char *)fw_ddb_entry->iscsi_name, buflen); 3893 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3894 (char *)ha->name_string, buflen); 3895 3896 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3897 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3898 chap_tbl.secret, 3899 ddb_entry->chap_tbl_idx)) { 3900 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3901 (char *)chap_tbl.name, 3902 strlen((char *)chap_tbl.name)); 3903 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3904 (char *)chap_tbl.secret, 3905 chap_tbl.secret_len); 3906 } 3907 } 3908 } 3909 3910 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3911 struct ddb_entry *ddb_entry) 3912 { 3913 struct iscsi_cls_session *cls_sess; 3914 struct iscsi_cls_conn *cls_conn; 3915 uint32_t ddb_state; 3916 dma_addr_t fw_ddb_entry_dma; 3917 struct dev_db_entry *fw_ddb_entry; 3918 3919 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3920 &fw_ddb_entry_dma, GFP_KERNEL); 3921 if (!fw_ddb_entry) { 3922 ql4_printk(KERN_ERR, ha, 3923 "%s: Unable to allocate dma buffer\n", __func__); 3924 goto exit_session_conn_fwddb_param; 3925 } 3926 3927 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3928 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3929 NULL, NULL, NULL) == QLA_ERROR) { 3930 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3931 "get_ddb_entry for fw_ddb_index %d\n", 3932 ha->host_no, __func__, 3933 ddb_entry->fw_ddb_index)); 3934 goto exit_session_conn_fwddb_param; 3935 } 3936 3937 cls_sess = ddb_entry->sess; 3938 3939 cls_conn = ddb_entry->conn; 3940 3941 /* Update params */ 3942 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3943 3944 exit_session_conn_fwddb_param: 3945 if (fw_ddb_entry) 3946 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3947 fw_ddb_entry, fw_ddb_entry_dma); 3948 } 3949 3950 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3951 struct ddb_entry *ddb_entry) 3952 { 3953 struct iscsi_cls_session *cls_sess; 3954 struct iscsi_cls_conn *cls_conn; 3955 struct iscsi_session *sess; 3956 struct iscsi_conn *conn; 3957 uint32_t ddb_state; 3958 dma_addr_t fw_ddb_entry_dma; 3959 struct dev_db_entry *fw_ddb_entry; 3960 3961 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3962 &fw_ddb_entry_dma, GFP_KERNEL); 3963 if (!fw_ddb_entry) { 3964 ql4_printk(KERN_ERR, ha, 3965 "%s: Unable to allocate dma buffer\n", __func__); 3966 goto exit_session_conn_param; 3967 } 3968 3969 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3970 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3971 NULL, NULL, NULL) == QLA_ERROR) { 3972 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3973 "get_ddb_entry for fw_ddb_index %d\n", 3974 ha->host_no, __func__, 3975 ddb_entry->fw_ddb_index)); 3976 goto exit_session_conn_param; 3977 } 3978 3979 cls_sess = ddb_entry->sess; 3980 sess = cls_sess->dd_data; 3981 3982 cls_conn = ddb_entry->conn; 3983 conn = cls_conn->dd_data; 3984 3985 /* Update timers after login */ 3986 ddb_entry->default_relogin_timeout = 3987 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3988 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3989 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3990 ddb_entry->default_time2wait = 3991 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3992 3993 /* Update params */ 3994 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3995 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3996 3997 memcpy(sess->initiatorname, ha->name_string, 3998 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 3999 4000 exit_session_conn_param: 4001 if (fw_ddb_entry) 4002 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 4003 fw_ddb_entry, fw_ddb_entry_dma); 4004 } 4005 4006 /* 4007 * Timer routines 4008 */ 4009 static void qla4xxx_timer(struct timer_list *t); 4010 4011 static void qla4xxx_start_timer(struct scsi_qla_host *ha, 4012 unsigned long interval) 4013 { 4014 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 4015 __func__, ha->host->host_no)); 4016 timer_setup(&ha->timer, qla4xxx_timer, 0); 4017 ha->timer.expires = jiffies + interval * HZ; 4018 add_timer(&ha->timer); 4019 ha->timer_active = 1; 4020 } 4021 4022 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 4023 { 4024 del_timer_sync(&ha->timer); 4025 ha->timer_active = 0; 4026 } 4027 4028 /*** 4029 * qla4xxx_mark_device_missing - blocks the session 4030 * @cls_session: Pointer to the session to be blocked 4031 * @ddb_entry: Pointer to device database entry 4032 * 4033 * This routine marks a device missing and close connection. 4034 **/ 4035 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 4036 { 4037 iscsi_block_session(cls_session); 4038 } 4039 4040 /** 4041 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 4042 * @ha: Pointer to host adapter structure. 4043 * 4044 * This routine marks a device missing and resets the relogin retry count. 4045 **/ 4046 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 4047 { 4048 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 4049 } 4050 4051 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 4052 struct ddb_entry *ddb_entry, 4053 struct scsi_cmnd *cmd) 4054 { 4055 struct srb *srb; 4056 4057 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 4058 if (!srb) 4059 return srb; 4060 4061 kref_init(&srb->srb_ref); 4062 srb->ha = ha; 4063 srb->ddb = ddb_entry; 4064 srb->cmd = cmd; 4065 srb->flags = 0; 4066 qla4xxx_cmd_priv(cmd)->srb = srb; 4067 4068 return srb; 4069 } 4070 4071 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4072 { 4073 struct scsi_cmnd *cmd = srb->cmd; 4074 4075 if (srb->flags & SRB_DMA_VALID) { 4076 scsi_dma_unmap(cmd); 4077 srb->flags &= ~SRB_DMA_VALID; 4078 } 4079 qla4xxx_cmd_priv(cmd)->srb = NULL; 4080 } 4081 4082 void qla4xxx_srb_compl(struct kref *ref) 4083 { 4084 struct srb *srb = container_of(ref, struct srb, srb_ref); 4085 struct scsi_cmnd *cmd = srb->cmd; 4086 struct scsi_qla_host *ha = srb->ha; 4087 4088 qla4xxx_srb_free_dma(ha, srb); 4089 4090 mempool_free(srb, ha->srb_mempool); 4091 4092 scsi_done(cmd); 4093 } 4094 4095 /** 4096 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4097 * @host: scsi host 4098 * @cmd: Pointer to Linux's SCSI command structure 4099 * 4100 * Remarks: 4101 * This routine is invoked by Linux to send a SCSI command to the driver. 4102 * The mid-level driver tries to ensure that queuecommand never gets 4103 * invoked concurrently with itself or the interrupt handler (although 4104 * the interrupt handler may call this routine as part of request- 4105 * completion handling). Unfortunely, it sometimes calls the scheduler 4106 * in interrupt context which is a big NO! NO!. 4107 **/ 4108 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4109 { 4110 struct scsi_qla_host *ha = to_qla_host(host); 4111 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4112 struct iscsi_cls_session *sess = ddb_entry->sess; 4113 struct srb *srb; 4114 int rval; 4115 4116 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4117 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4118 cmd->result = DID_NO_CONNECT << 16; 4119 else 4120 cmd->result = DID_REQUEUE << 16; 4121 goto qc_fail_command; 4122 } 4123 4124 if (!sess) { 4125 cmd->result = DID_IMM_RETRY << 16; 4126 goto qc_fail_command; 4127 } 4128 4129 rval = iscsi_session_chkready(sess); 4130 if (rval) { 4131 cmd->result = rval; 4132 goto qc_fail_command; 4133 } 4134 4135 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4136 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4137 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4138 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4139 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4140 !test_bit(AF_ONLINE, &ha->flags) || 4141 !test_bit(AF_LINK_UP, &ha->flags) || 4142 test_bit(AF_LOOPBACK, &ha->flags) || 4143 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4144 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4145 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4146 goto qc_host_busy; 4147 4148 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4149 if (!srb) 4150 goto qc_host_busy; 4151 4152 rval = qla4xxx_send_command_to_isp(ha, srb); 4153 if (rval != QLA_SUCCESS) 4154 goto qc_host_busy_free_sp; 4155 4156 return 0; 4157 4158 qc_host_busy_free_sp: 4159 qla4xxx_srb_free_dma(ha, srb); 4160 mempool_free(srb, ha->srb_mempool); 4161 4162 qc_host_busy: 4163 return SCSI_MLQUEUE_HOST_BUSY; 4164 4165 qc_fail_command: 4166 scsi_done(cmd); 4167 4168 return 0; 4169 } 4170 4171 /** 4172 * qla4xxx_mem_free - frees memory allocated to adapter 4173 * @ha: Pointer to host adapter structure. 4174 * 4175 * Frees memory previously allocated by qla4xxx_mem_alloc 4176 **/ 4177 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4178 { 4179 if (ha->queues) 4180 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4181 ha->queues_dma); 4182 4183 vfree(ha->fw_dump); 4184 4185 ha->queues_len = 0; 4186 ha->queues = NULL; 4187 ha->queues_dma = 0; 4188 ha->request_ring = NULL; 4189 ha->request_dma = 0; 4190 ha->response_ring = NULL; 4191 ha->response_dma = 0; 4192 ha->shadow_regs = NULL; 4193 ha->shadow_regs_dma = 0; 4194 ha->fw_dump = NULL; 4195 ha->fw_dump_size = 0; 4196 4197 /* Free srb pool. */ 4198 mempool_destroy(ha->srb_mempool); 4199 ha->srb_mempool = NULL; 4200 4201 dma_pool_destroy(ha->chap_dma_pool); 4202 4203 vfree(ha->chap_list); 4204 ha->chap_list = NULL; 4205 4206 dma_pool_destroy(ha->fw_ddb_dma_pool); 4207 4208 /* release io space registers */ 4209 if (is_qla8022(ha)) { 4210 if (ha->nx_pcibase) 4211 iounmap( 4212 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4213 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4214 if (ha->nx_pcibase) 4215 iounmap( 4216 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4217 } else if (ha->reg) { 4218 iounmap(ha->reg); 4219 } 4220 4221 vfree(ha->reset_tmplt.buff); 4222 4223 pci_release_regions(ha->pdev); 4224 } 4225 4226 /** 4227 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4228 * @ha: Pointer to host adapter structure 4229 * 4230 * Allocates DMA memory for request and response queues. Also allocates memory 4231 * for srbs. 4232 **/ 4233 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4234 { 4235 unsigned long align; 4236 4237 /* Allocate contiguous block of DMA memory for queues. */ 4238 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4239 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4240 sizeof(struct shadow_regs) + 4241 MEM_ALIGN_VALUE + 4242 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4243 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 4244 &ha->queues_dma, GFP_KERNEL); 4245 if (ha->queues == NULL) { 4246 ql4_printk(KERN_WARNING, ha, 4247 "Memory Allocation failed - queues.\n"); 4248 4249 goto mem_alloc_error_exit; 4250 } 4251 4252 /* 4253 * As per RISC alignment requirements -- the bus-address must be a 4254 * multiple of the request-ring size (in bytes). 4255 */ 4256 align = 0; 4257 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4258 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4259 (MEM_ALIGN_VALUE - 1)); 4260 4261 /* Update request and response queue pointers. */ 4262 ha->request_dma = ha->queues_dma + align; 4263 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4264 ha->response_dma = ha->queues_dma + align + 4265 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4266 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4267 (REQUEST_QUEUE_DEPTH * 4268 QUEUE_SIZE)); 4269 ha->shadow_regs_dma = ha->queues_dma + align + 4270 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4271 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4272 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4273 (REQUEST_QUEUE_DEPTH * 4274 QUEUE_SIZE) + 4275 (RESPONSE_QUEUE_DEPTH * 4276 QUEUE_SIZE)); 4277 4278 /* Allocate memory for srb pool. */ 4279 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4280 mempool_free_slab, srb_cachep); 4281 if (ha->srb_mempool == NULL) { 4282 ql4_printk(KERN_WARNING, ha, 4283 "Memory Allocation failed - SRB Pool.\n"); 4284 4285 goto mem_alloc_error_exit; 4286 } 4287 4288 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4289 CHAP_DMA_BLOCK_SIZE, 8, 0); 4290 4291 if (ha->chap_dma_pool == NULL) { 4292 ql4_printk(KERN_WARNING, ha, 4293 "%s: chap_dma_pool allocation failed..\n", __func__); 4294 goto mem_alloc_error_exit; 4295 } 4296 4297 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4298 DDB_DMA_BLOCK_SIZE, 8, 0); 4299 4300 if (ha->fw_ddb_dma_pool == NULL) { 4301 ql4_printk(KERN_WARNING, ha, 4302 "%s: fw_ddb_dma_pool allocation failed..\n", 4303 __func__); 4304 goto mem_alloc_error_exit; 4305 } 4306 4307 return QLA_SUCCESS; 4308 4309 mem_alloc_error_exit: 4310 return QLA_ERROR; 4311 } 4312 4313 /** 4314 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4315 * @ha: adapter block pointer. 4316 * 4317 * Note: The caller should not hold the idc lock. 4318 **/ 4319 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4320 { 4321 uint32_t temp, temp_state, temp_val; 4322 int status = QLA_SUCCESS; 4323 4324 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4325 4326 temp_state = qla82xx_get_temp_state(temp); 4327 temp_val = qla82xx_get_temp_val(temp); 4328 4329 if (temp_state == QLA82XX_TEMP_PANIC) { 4330 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4331 " exceeds maximum allowed. Hardware has been shut" 4332 " down.\n", temp_val); 4333 status = QLA_ERROR; 4334 } else if (temp_state == QLA82XX_TEMP_WARN) { 4335 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4336 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4337 " degrees C exceeds operating range." 4338 " Immediate action needed.\n", temp_val); 4339 } else { 4340 if (ha->temperature == QLA82XX_TEMP_WARN) 4341 ql4_printk(KERN_INFO, ha, "Device temperature is" 4342 " now %d degrees C in normal range.\n", 4343 temp_val); 4344 } 4345 ha->temperature = temp_state; 4346 return status; 4347 } 4348 4349 /** 4350 * qla4_8xxx_check_fw_alive - Check firmware health 4351 * @ha: Pointer to host adapter structure. 4352 * 4353 * Context: Interrupt 4354 **/ 4355 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4356 { 4357 uint32_t fw_heartbeat_counter; 4358 int status = QLA_SUCCESS; 4359 4360 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4361 QLA8XXX_PEG_ALIVE_COUNTER); 4362 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4363 if (fw_heartbeat_counter == 0xffffffff) { 4364 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4365 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4366 ha->host_no, __func__)); 4367 return status; 4368 } 4369 4370 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4371 ha->seconds_since_last_heartbeat++; 4372 /* FW not alive after 2 seconds */ 4373 if (ha->seconds_since_last_heartbeat == 2) { 4374 ha->seconds_since_last_heartbeat = 0; 4375 qla4_8xxx_dump_peg_reg(ha); 4376 status = QLA_ERROR; 4377 } 4378 } else 4379 ha->seconds_since_last_heartbeat = 0; 4380 4381 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4382 return status; 4383 } 4384 4385 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4386 { 4387 uint32_t halt_status; 4388 int halt_status_unrecoverable = 0; 4389 4390 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4391 4392 if (is_qla8022(ha)) { 4393 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4394 __func__); 4395 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4396 CRB_NIU_XG_PAUSE_CTL_P0 | 4397 CRB_NIU_XG_PAUSE_CTL_P1); 4398 4399 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4400 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4401 __func__); 4402 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4403 halt_status_unrecoverable = 1; 4404 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4405 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4406 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4407 __func__); 4408 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4409 halt_status_unrecoverable = 1; 4410 } 4411 4412 /* 4413 * Since we cannot change dev_state in interrupt context, 4414 * set appropriate DPC flag then wakeup DPC 4415 */ 4416 if (halt_status_unrecoverable) { 4417 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4418 } else { 4419 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4420 __func__); 4421 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4422 } 4423 qla4xxx_mailbox_premature_completion(ha); 4424 qla4xxx_wake_dpc(ha); 4425 } 4426 4427 /** 4428 * qla4_8xxx_watchdog - Poll dev state 4429 * @ha: Pointer to host adapter structure. 4430 * 4431 * Context: Interrupt 4432 **/ 4433 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4434 { 4435 uint32_t dev_state; 4436 uint32_t idc_ctrl; 4437 4438 if (is_qla8032(ha) && 4439 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4440 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4441 __func__, ha->func_num); 4442 4443 /* don't poll if reset is going on */ 4444 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4445 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4446 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4447 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4448 4449 if (qla4_8xxx_check_temp(ha)) { 4450 if (is_qla8022(ha)) { 4451 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4452 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4453 CRB_NIU_XG_PAUSE_CTL_P0 | 4454 CRB_NIU_XG_PAUSE_CTL_P1); 4455 } 4456 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4457 qla4xxx_wake_dpc(ha); 4458 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4459 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4460 4461 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4462 __func__); 4463 4464 if (is_qla8032(ha) || is_qla8042(ha)) { 4465 idc_ctrl = qla4_83xx_rd_reg(ha, 4466 QLA83XX_IDC_DRV_CTRL); 4467 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4468 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4469 __func__); 4470 qla4xxx_mailbox_premature_completion( 4471 ha); 4472 } 4473 } 4474 4475 if ((is_qla8032(ha) || is_qla8042(ha)) || 4476 (is_qla8022(ha) && !ql4xdontresethba)) { 4477 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4478 qla4xxx_wake_dpc(ha); 4479 } 4480 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4481 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4482 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4483 __func__); 4484 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4485 qla4xxx_wake_dpc(ha); 4486 } else { 4487 /* Check firmware health */ 4488 if (qla4_8xxx_check_fw_alive(ha)) 4489 qla4_8xxx_process_fw_error(ha); 4490 } 4491 } 4492 } 4493 4494 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4495 { 4496 struct iscsi_session *sess; 4497 struct ddb_entry *ddb_entry; 4498 struct scsi_qla_host *ha; 4499 4500 sess = cls_sess->dd_data; 4501 ddb_entry = sess->dd_data; 4502 ha = ddb_entry->ha; 4503 4504 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4505 return; 4506 4507 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4508 !iscsi_is_session_online(cls_sess)) { 4509 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4510 INVALID_ENTRY) { 4511 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4512 0) { 4513 atomic_set(&ddb_entry->retry_relogin_timer, 4514 INVALID_ENTRY); 4515 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4516 set_bit(DF_RELOGIN, &ddb_entry->flags); 4517 DEBUG2(ql4_printk(KERN_INFO, ha, 4518 "%s: index [%d] login device\n", 4519 __func__, ddb_entry->fw_ddb_index)); 4520 } else 4521 atomic_dec(&ddb_entry->retry_relogin_timer); 4522 } 4523 } 4524 4525 /* Wait for relogin to timeout */ 4526 if (atomic_read(&ddb_entry->relogin_timer) && 4527 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4528 /* 4529 * If the relogin times out and the device is 4530 * still NOT ONLINE then try and relogin again. 4531 */ 4532 if (!iscsi_is_session_online(cls_sess)) { 4533 /* Reset retry relogin timer */ 4534 atomic_inc(&ddb_entry->relogin_retry_count); 4535 DEBUG2(ql4_printk(KERN_INFO, ha, 4536 "%s: index[%d] relogin timed out-retrying" 4537 " relogin (%d), retry (%d)\n", __func__, 4538 ddb_entry->fw_ddb_index, 4539 atomic_read(&ddb_entry->relogin_retry_count), 4540 ddb_entry->default_time2wait + 4)); 4541 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4542 atomic_set(&ddb_entry->retry_relogin_timer, 4543 ddb_entry->default_time2wait + 4); 4544 } 4545 } 4546 } 4547 4548 /** 4549 * qla4xxx_timer - checks every second for work to do. 4550 * @t: Context to obtain pointer to host adapter structure. 4551 **/ 4552 static void qla4xxx_timer(struct timer_list *t) 4553 { 4554 struct scsi_qla_host *ha = from_timer(ha, t, timer); 4555 int start_dpc = 0; 4556 uint16_t w; 4557 4558 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4559 4560 /* If we are in the middle of AER/EEH processing 4561 * skip any processing and reschedule the timer 4562 */ 4563 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4564 mod_timer(&ha->timer, jiffies + HZ); 4565 return; 4566 } 4567 4568 /* Hardware read to trigger an EEH error during mailbox waits. */ 4569 if (!pci_channel_offline(ha->pdev)) 4570 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4571 4572 if (is_qla80XX(ha)) 4573 qla4_8xxx_watchdog(ha); 4574 4575 if (is_qla40XX(ha)) { 4576 /* Check for heartbeat interval. */ 4577 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4578 ha->heartbeat_interval != 0) { 4579 ha->seconds_since_last_heartbeat++; 4580 if (ha->seconds_since_last_heartbeat > 4581 ha->heartbeat_interval + 2) 4582 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4583 } 4584 } 4585 4586 /* Process any deferred work. */ 4587 if (!list_empty(&ha->work_list)) 4588 start_dpc++; 4589 4590 /* Wakeup the dpc routine for this adapter, if needed. */ 4591 if (start_dpc || 4592 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4593 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4594 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4595 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4596 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4597 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4598 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4599 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4600 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4601 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) || 4602 test_bit(DPC_AEN, &ha->dpc_flags)) { 4603 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4604 " - dpc flags = 0x%lx\n", 4605 ha->host_no, __func__, ha->dpc_flags)); 4606 qla4xxx_wake_dpc(ha); 4607 } 4608 4609 /* Reschedule timer thread to call us back in one second */ 4610 mod_timer(&ha->timer, jiffies + HZ); 4611 4612 DEBUG2(ha->seconds_since_last_intr++); 4613 } 4614 4615 /** 4616 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4617 * @ha: Pointer to host adapter structure. 4618 * 4619 * This routine stalls the driver until all outstanding commands are returned. 4620 * Caller must release the Hardware Lock prior to calling this routine. 4621 **/ 4622 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4623 { 4624 uint32_t index = 0; 4625 unsigned long flags; 4626 struct scsi_cmnd *cmd; 4627 unsigned long wtime; 4628 uint32_t wtmo; 4629 4630 if (is_qla40XX(ha)) 4631 wtmo = WAIT_CMD_TOV; 4632 else 4633 wtmo = ha->nx_reset_timeout / 2; 4634 4635 wtime = jiffies + (wtmo * HZ); 4636 4637 DEBUG2(ql4_printk(KERN_INFO, ha, 4638 "Wait up to %u seconds for cmds to complete\n", 4639 wtmo)); 4640 4641 while (!time_after_eq(jiffies, wtime)) { 4642 spin_lock_irqsave(&ha->hardware_lock, flags); 4643 /* Find a command that hasn't completed. */ 4644 for (index = 0; index < ha->host->can_queue; index++) { 4645 cmd = scsi_host_find_tag(ha->host, index); 4646 /* 4647 * We cannot just check if the index is valid, 4648 * becase if we are run from the scsi eh, then 4649 * the scsi/block layer is going to prevent 4650 * the tag from being released. 4651 */ 4652 if (cmd != NULL && qla4xxx_cmd_priv(cmd)->srb) 4653 break; 4654 } 4655 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4656 4657 /* If No Commands are pending, wait is complete */ 4658 if (index == ha->host->can_queue) 4659 return QLA_SUCCESS; 4660 4661 msleep(1000); 4662 } 4663 /* If we timed out on waiting for commands to come back 4664 * return ERROR. */ 4665 return QLA_ERROR; 4666 } 4667 4668 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4669 { 4670 uint32_t ctrl_status; 4671 unsigned long flags = 0; 4672 4673 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4674 4675 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4676 return QLA_ERROR; 4677 4678 spin_lock_irqsave(&ha->hardware_lock, flags); 4679 4680 /* 4681 * If the SCSI Reset Interrupt bit is set, clear it. 4682 * Otherwise, the Soft Reset won't work. 4683 */ 4684 ctrl_status = readw(&ha->reg->ctrl_status); 4685 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4686 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4687 4688 /* Issue Soft Reset */ 4689 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4690 readl(&ha->reg->ctrl_status); 4691 4692 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4693 return QLA_SUCCESS; 4694 } 4695 4696 /** 4697 * qla4xxx_soft_reset - performs soft reset. 4698 * @ha: Pointer to host adapter structure. 4699 **/ 4700 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4701 { 4702 uint32_t max_wait_time; 4703 unsigned long flags = 0; 4704 int status; 4705 uint32_t ctrl_status; 4706 4707 status = qla4xxx_hw_reset(ha); 4708 if (status != QLA_SUCCESS) 4709 return status; 4710 4711 status = QLA_ERROR; 4712 /* Wait until the Network Reset Intr bit is cleared */ 4713 max_wait_time = RESET_INTR_TOV; 4714 do { 4715 spin_lock_irqsave(&ha->hardware_lock, flags); 4716 ctrl_status = readw(&ha->reg->ctrl_status); 4717 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4718 4719 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4720 break; 4721 4722 msleep(1000); 4723 } while ((--max_wait_time)); 4724 4725 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4726 DEBUG2(printk(KERN_WARNING 4727 "scsi%ld: Network Reset Intr not cleared by " 4728 "Network function, clearing it now!\n", 4729 ha->host_no)); 4730 spin_lock_irqsave(&ha->hardware_lock, flags); 4731 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4732 readl(&ha->reg->ctrl_status); 4733 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4734 } 4735 4736 /* Wait until the firmware tells us the Soft Reset is done */ 4737 max_wait_time = SOFT_RESET_TOV; 4738 do { 4739 spin_lock_irqsave(&ha->hardware_lock, flags); 4740 ctrl_status = readw(&ha->reg->ctrl_status); 4741 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4742 4743 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4744 status = QLA_SUCCESS; 4745 break; 4746 } 4747 4748 msleep(1000); 4749 } while ((--max_wait_time)); 4750 4751 /* 4752 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4753 * after the soft reset has taken place. 4754 */ 4755 spin_lock_irqsave(&ha->hardware_lock, flags); 4756 ctrl_status = readw(&ha->reg->ctrl_status); 4757 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4758 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4759 readl(&ha->reg->ctrl_status); 4760 } 4761 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4762 4763 /* If soft reset fails then most probably the bios on other 4764 * function is also enabled. 4765 * Since the initialization is sequential the other fn 4766 * wont be able to acknowledge the soft reset. 4767 * Issue a force soft reset to workaround this scenario. 4768 */ 4769 if (max_wait_time == 0) { 4770 /* Issue Force Soft Reset */ 4771 spin_lock_irqsave(&ha->hardware_lock, flags); 4772 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4773 readl(&ha->reg->ctrl_status); 4774 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4775 /* Wait until the firmware tells us the Soft Reset is done */ 4776 max_wait_time = SOFT_RESET_TOV; 4777 do { 4778 spin_lock_irqsave(&ha->hardware_lock, flags); 4779 ctrl_status = readw(&ha->reg->ctrl_status); 4780 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4781 4782 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4783 status = QLA_SUCCESS; 4784 break; 4785 } 4786 4787 msleep(1000); 4788 } while ((--max_wait_time)); 4789 } 4790 4791 return status; 4792 } 4793 4794 /** 4795 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4796 * @ha: Pointer to host adapter structure. 4797 * @res: returned scsi status 4798 * 4799 * This routine is called just prior to a HARD RESET to return all 4800 * outstanding commands back to the Operating System. 4801 * Caller should make sure that the following locks are released 4802 * before this calling routine: Hardware lock, and io_request_lock. 4803 **/ 4804 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4805 { 4806 struct srb *srb; 4807 int i; 4808 unsigned long flags; 4809 4810 spin_lock_irqsave(&ha->hardware_lock, flags); 4811 for (i = 0; i < ha->host->can_queue; i++) { 4812 srb = qla4xxx_del_from_active_array(ha, i); 4813 if (srb != NULL) { 4814 srb->cmd->result = res; 4815 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4816 } 4817 } 4818 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4819 } 4820 4821 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4822 { 4823 clear_bit(AF_ONLINE, &ha->flags); 4824 4825 /* Disable the board */ 4826 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4827 4828 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4829 qla4xxx_mark_all_devices_missing(ha); 4830 clear_bit(AF_INIT_DONE, &ha->flags); 4831 } 4832 4833 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4834 { 4835 struct iscsi_session *sess; 4836 struct ddb_entry *ddb_entry; 4837 4838 sess = cls_session->dd_data; 4839 ddb_entry = sess->dd_data; 4840 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4841 4842 if (ddb_entry->ddb_type == FLASH_DDB) 4843 iscsi_block_session(ddb_entry->sess); 4844 else 4845 iscsi_session_failure(cls_session->dd_data, 4846 ISCSI_ERR_CONN_FAILED); 4847 } 4848 4849 /** 4850 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4851 * @ha: Pointer to host adapter structure. 4852 **/ 4853 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4854 { 4855 int status = QLA_ERROR; 4856 uint8_t reset_chip = 0; 4857 uint32_t dev_state; 4858 unsigned long wait; 4859 4860 /* Stall incoming I/O until we are done */ 4861 scsi_block_requests(ha->host); 4862 clear_bit(AF_ONLINE, &ha->flags); 4863 clear_bit(AF_LINK_UP, &ha->flags); 4864 4865 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4866 4867 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4868 4869 if ((is_qla8032(ha) || is_qla8042(ha)) && 4870 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4871 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4872 __func__); 4873 /* disable pause frame for ISP83xx */ 4874 qla4_83xx_disable_pause(ha); 4875 } 4876 4877 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4878 4879 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4880 reset_chip = 1; 4881 4882 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4883 * do not reset adapter, jump to initialize_adapter */ 4884 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4885 status = QLA_SUCCESS; 4886 goto recover_ha_init_adapter; 4887 } 4888 4889 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4890 * from eh_host_reset or ioctl module */ 4891 if (is_qla80XX(ha) && !reset_chip && 4892 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4893 4894 DEBUG2(ql4_printk(KERN_INFO, ha, 4895 "scsi%ld: %s - Performing stop_firmware...\n", 4896 ha->host_no, __func__)); 4897 status = ha->isp_ops->reset_firmware(ha); 4898 if (status == QLA_SUCCESS) { 4899 ha->isp_ops->disable_intrs(ha); 4900 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4901 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4902 } else { 4903 /* If the stop_firmware fails then 4904 * reset the entire chip */ 4905 reset_chip = 1; 4906 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4907 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4908 } 4909 } 4910 4911 /* Issue full chip reset if recovering from a catastrophic error, 4912 * or if stop_firmware fails for ISP-8xxx. 4913 * This is the default case for ISP-4xxx */ 4914 if (is_qla40XX(ha) || reset_chip) { 4915 if (is_qla40XX(ha)) 4916 goto chip_reset; 4917 4918 /* Check if 8XXX firmware is alive or not 4919 * We may have arrived here from NEED_RESET 4920 * detection only */ 4921 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4922 goto chip_reset; 4923 4924 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4925 while (time_before(jiffies, wait)) { 4926 if (qla4_8xxx_check_fw_alive(ha)) { 4927 qla4xxx_mailbox_premature_completion(ha); 4928 break; 4929 } 4930 4931 set_current_state(TASK_UNINTERRUPTIBLE); 4932 schedule_timeout(HZ); 4933 } 4934 chip_reset: 4935 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4936 qla4xxx_cmd_wait(ha); 4937 4938 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4939 DEBUG2(ql4_printk(KERN_INFO, ha, 4940 "scsi%ld: %s - Performing chip reset..\n", 4941 ha->host_no, __func__)); 4942 status = ha->isp_ops->reset_chip(ha); 4943 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4944 } 4945 4946 /* Flush any pending ddb changed AENs */ 4947 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4948 4949 recover_ha_init_adapter: 4950 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4951 if (status == QLA_SUCCESS) { 4952 /* For ISP-4xxx, force function 1 to always initialize 4953 * before function 3 to prevent both funcions from 4954 * stepping on top of the other */ 4955 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4956 ssleep(6); 4957 4958 /* NOTE: AF_ONLINE flag set upon successful completion of 4959 * qla4xxx_initialize_adapter */ 4960 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4961 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4962 status = qla4_8xxx_check_init_adapter_retry(ha); 4963 if (status == QLA_ERROR) { 4964 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4965 ha->host_no, __func__); 4966 qla4xxx_dead_adapter_cleanup(ha); 4967 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4968 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4969 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4970 &ha->dpc_flags); 4971 goto exit_recover; 4972 } 4973 } 4974 } 4975 4976 /* Retry failed adapter initialization, if necessary 4977 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4978 * case to prevent ping-pong resets between functions */ 4979 if (!test_bit(AF_ONLINE, &ha->flags) && 4980 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4981 /* Adapter initialization failed, see if we can retry 4982 * resetting the ha. 4983 * Since we don't want to block the DPC for too long 4984 * with multiple resets in the same thread, 4985 * utilize DPC to retry */ 4986 if (is_qla80XX(ha)) { 4987 ha->isp_ops->idc_lock(ha); 4988 dev_state = qla4_8xxx_rd_direct(ha, 4989 QLA8XXX_CRB_DEV_STATE); 4990 ha->isp_ops->idc_unlock(ha); 4991 if (dev_state == QLA8XXX_DEV_FAILED) { 4992 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4993 "recover adapter. H/W is in Failed " 4994 "state\n", __func__); 4995 qla4xxx_dead_adapter_cleanup(ha); 4996 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4997 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4998 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4999 &ha->dpc_flags); 5000 status = QLA_ERROR; 5001 5002 goto exit_recover; 5003 } 5004 } 5005 5006 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 5007 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 5008 DEBUG2(printk("scsi%ld: recover adapter - retrying " 5009 "(%d) more times\n", ha->host_no, 5010 ha->retry_reset_ha_cnt)); 5011 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5012 status = QLA_ERROR; 5013 } else { 5014 if (ha->retry_reset_ha_cnt > 0) { 5015 /* Schedule another Reset HA--DPC will retry */ 5016 ha->retry_reset_ha_cnt--; 5017 DEBUG2(printk("scsi%ld: recover adapter - " 5018 "retry remaining %d\n", 5019 ha->host_no, 5020 ha->retry_reset_ha_cnt)); 5021 status = QLA_ERROR; 5022 } 5023 5024 if (ha->retry_reset_ha_cnt == 0) { 5025 /* Recover adapter retries have been exhausted. 5026 * Adapter DEAD */ 5027 DEBUG2(printk("scsi%ld: recover adapter " 5028 "failed - board disabled\n", 5029 ha->host_no)); 5030 qla4xxx_dead_adapter_cleanup(ha); 5031 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5032 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5033 clear_bit(DPC_RESET_HA_FW_CONTEXT, 5034 &ha->dpc_flags); 5035 status = QLA_ERROR; 5036 } 5037 } 5038 } else { 5039 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5040 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5041 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5042 } 5043 5044 exit_recover: 5045 ha->adapter_error_count++; 5046 5047 if (test_bit(AF_ONLINE, &ha->flags)) 5048 ha->isp_ops->enable_intrs(ha); 5049 5050 scsi_unblock_requests(ha->host); 5051 5052 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 5053 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 5054 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 5055 5056 return status; 5057 } 5058 5059 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 5060 { 5061 struct iscsi_session *sess; 5062 struct ddb_entry *ddb_entry; 5063 struct scsi_qla_host *ha; 5064 5065 sess = cls_session->dd_data; 5066 ddb_entry = sess->dd_data; 5067 ha = ddb_entry->ha; 5068 if (!iscsi_is_session_online(cls_session)) { 5069 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5070 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5071 " unblock session\n", ha->host_no, __func__, 5072 ddb_entry->fw_ddb_index); 5073 iscsi_unblock_session(ddb_entry->sess); 5074 } else { 5075 /* Trigger relogin */ 5076 if (ddb_entry->ddb_type == FLASH_DDB) { 5077 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5078 test_bit(DF_DISABLE_RELOGIN, 5079 &ddb_entry->flags))) 5080 qla4xxx_arm_relogin_timer(ddb_entry); 5081 } else 5082 iscsi_session_failure(cls_session->dd_data, 5083 ISCSI_ERR_CONN_FAILED); 5084 } 5085 } 5086 } 5087 5088 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5089 { 5090 struct iscsi_session *sess; 5091 struct ddb_entry *ddb_entry; 5092 struct scsi_qla_host *ha; 5093 5094 sess = cls_session->dd_data; 5095 ddb_entry = sess->dd_data; 5096 ha = ddb_entry->ha; 5097 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5098 " unblock session\n", ha->host_no, __func__, 5099 ddb_entry->fw_ddb_index); 5100 5101 iscsi_unblock_session(ddb_entry->sess); 5102 5103 /* Start scan target */ 5104 if (test_bit(AF_ONLINE, &ha->flags)) { 5105 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5106 " start scan\n", ha->host_no, __func__, 5107 ddb_entry->fw_ddb_index); 5108 queue_work(ddb_entry->sess->workq, &ddb_entry->sess->scan_work); 5109 } 5110 return QLA_SUCCESS; 5111 } 5112 5113 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5114 { 5115 struct iscsi_session *sess; 5116 struct ddb_entry *ddb_entry; 5117 struct scsi_qla_host *ha; 5118 int status = QLA_SUCCESS; 5119 5120 sess = cls_session->dd_data; 5121 ddb_entry = sess->dd_data; 5122 ha = ddb_entry->ha; 5123 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5124 " unblock user space session\n", ha->host_no, __func__, 5125 ddb_entry->fw_ddb_index); 5126 5127 if (!iscsi_is_session_online(cls_session)) { 5128 iscsi_conn_start(ddb_entry->conn); 5129 iscsi_conn_login_event(ddb_entry->conn, 5130 ISCSI_CONN_STATE_LOGGED_IN); 5131 } else { 5132 ql4_printk(KERN_INFO, ha, 5133 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5134 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5135 cls_session->sid); 5136 status = QLA_ERROR; 5137 } 5138 5139 return status; 5140 } 5141 5142 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5143 { 5144 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5145 } 5146 5147 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5148 { 5149 uint16_t relogin_timer; 5150 struct iscsi_session *sess; 5151 struct ddb_entry *ddb_entry; 5152 struct scsi_qla_host *ha; 5153 5154 sess = cls_sess->dd_data; 5155 ddb_entry = sess->dd_data; 5156 ha = ddb_entry->ha; 5157 5158 relogin_timer = max(ddb_entry->default_relogin_timeout, 5159 (uint16_t)RELOGIN_TOV); 5160 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5161 5162 DEBUG2(ql4_printk(KERN_INFO, ha, 5163 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5164 ddb_entry->fw_ddb_index, relogin_timer)); 5165 5166 qla4xxx_login_flash_ddb(cls_sess); 5167 } 5168 5169 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5170 { 5171 struct iscsi_session *sess; 5172 struct ddb_entry *ddb_entry; 5173 struct scsi_qla_host *ha; 5174 5175 sess = cls_sess->dd_data; 5176 ddb_entry = sess->dd_data; 5177 ha = ddb_entry->ha; 5178 5179 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5180 return; 5181 5182 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5183 return; 5184 5185 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5186 !iscsi_is_session_online(cls_sess)) { 5187 DEBUG2(ql4_printk(KERN_INFO, ha, 5188 "relogin issued\n")); 5189 qla4xxx_relogin_flash_ddb(cls_sess); 5190 } 5191 } 5192 5193 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5194 { 5195 if (ha->dpc_thread) 5196 queue_work(ha->dpc_thread, &ha->dpc_work); 5197 } 5198 5199 static struct qla4_work_evt * 5200 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5201 enum qla4_work_type type) 5202 { 5203 struct qla4_work_evt *e; 5204 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5205 5206 e = kzalloc(size, GFP_ATOMIC); 5207 if (!e) 5208 return NULL; 5209 5210 INIT_LIST_HEAD(&e->list); 5211 e->type = type; 5212 return e; 5213 } 5214 5215 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5216 struct qla4_work_evt *e) 5217 { 5218 unsigned long flags; 5219 5220 spin_lock_irqsave(&ha->work_lock, flags); 5221 list_add_tail(&e->list, &ha->work_list); 5222 spin_unlock_irqrestore(&ha->work_lock, flags); 5223 qla4xxx_wake_dpc(ha); 5224 } 5225 5226 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5227 enum iscsi_host_event_code aen_code, 5228 uint32_t data_size, uint8_t *data) 5229 { 5230 struct qla4_work_evt *e; 5231 5232 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5233 if (!e) 5234 return QLA_ERROR; 5235 5236 e->u.aen.code = aen_code; 5237 e->u.aen.data_size = data_size; 5238 memcpy(e->u.aen.data, data, data_size); 5239 5240 qla4xxx_post_work(ha, e); 5241 5242 return QLA_SUCCESS; 5243 } 5244 5245 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5246 uint32_t status, uint32_t pid, 5247 uint32_t data_size, uint8_t *data) 5248 { 5249 struct qla4_work_evt *e; 5250 5251 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5252 if (!e) 5253 return QLA_ERROR; 5254 5255 e->u.ping.status = status; 5256 e->u.ping.pid = pid; 5257 e->u.ping.data_size = data_size; 5258 memcpy(e->u.ping.data, data, data_size); 5259 5260 qla4xxx_post_work(ha, e); 5261 5262 return QLA_SUCCESS; 5263 } 5264 5265 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5266 { 5267 struct qla4_work_evt *e, *tmp; 5268 unsigned long flags; 5269 LIST_HEAD(work); 5270 5271 spin_lock_irqsave(&ha->work_lock, flags); 5272 list_splice_init(&ha->work_list, &work); 5273 spin_unlock_irqrestore(&ha->work_lock, flags); 5274 5275 list_for_each_entry_safe(e, tmp, &work, list) { 5276 list_del_init(&e->list); 5277 5278 switch (e->type) { 5279 case QLA4_EVENT_AEN: 5280 iscsi_post_host_event(ha->host_no, 5281 &qla4xxx_iscsi_transport, 5282 e->u.aen.code, 5283 e->u.aen.data_size, 5284 e->u.aen.data); 5285 break; 5286 case QLA4_EVENT_PING_STATUS: 5287 iscsi_ping_comp_event(ha->host_no, 5288 &qla4xxx_iscsi_transport, 5289 e->u.ping.status, 5290 e->u.ping.pid, 5291 e->u.ping.data_size, 5292 e->u.ping.data); 5293 break; 5294 default: 5295 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5296 "supported", e->type); 5297 } 5298 kfree(e); 5299 } 5300 } 5301 5302 /** 5303 * qla4xxx_do_dpc - dpc routine 5304 * @work: Context to obtain pointer to host adapter structure. 5305 * 5306 * This routine is a task that is schedule by the interrupt handler 5307 * to perform the background processing for interrupts. We put it 5308 * on a task queue that is consumed whenever the scheduler runs; that's 5309 * so you can do anything (i.e. put the process to sleep etc). In fact, 5310 * the mid-level tries to sleep when it reaches the driver threshold 5311 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5312 **/ 5313 static void qla4xxx_do_dpc(struct work_struct *work) 5314 { 5315 struct scsi_qla_host *ha = 5316 container_of(work, struct scsi_qla_host, dpc_work); 5317 int status = QLA_ERROR; 5318 5319 DEBUG2(ql4_printk(KERN_INFO, ha, 5320 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5321 ha->host_no, __func__, ha->flags, ha->dpc_flags)); 5322 5323 /* Initialization not yet finished. Don't do anything yet. */ 5324 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5325 return; 5326 5327 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5328 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5329 ha->host_no, __func__, ha->flags)); 5330 return; 5331 } 5332 5333 /* post events to application */ 5334 qla4xxx_do_work(ha); 5335 5336 if (is_qla80XX(ha)) { 5337 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5338 if (is_qla8032(ha) || is_qla8042(ha)) { 5339 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5340 __func__); 5341 /* disable pause frame for ISP83xx */ 5342 qla4_83xx_disable_pause(ha); 5343 } 5344 5345 ha->isp_ops->idc_lock(ha); 5346 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5347 QLA8XXX_DEV_FAILED); 5348 ha->isp_ops->idc_unlock(ha); 5349 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5350 qla4_8xxx_device_state_handler(ha); 5351 } 5352 5353 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5354 if (is_qla8042(ha)) { 5355 if (ha->idc_info.info2 & 5356 ENABLE_INTERNAL_LOOPBACK) { 5357 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5358 __func__); 5359 status = qla4_84xx_config_acb(ha, 5360 ACB_CONFIG_DISABLE); 5361 if (status != QLA_SUCCESS) { 5362 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5363 __func__); 5364 } 5365 } 5366 } 5367 qla4_83xx_post_idc_ack(ha); 5368 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5369 } 5370 5371 if (is_qla8042(ha) && 5372 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5373 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5374 __func__); 5375 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5376 QLA_SUCCESS) { 5377 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5378 __func__); 5379 } 5380 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5381 } 5382 5383 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5384 qla4_8xxx_need_qsnt_handler(ha); 5385 } 5386 } 5387 5388 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5389 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5390 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5391 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5392 if ((is_qla8022(ha) && ql4xdontresethba) || 5393 ((is_qla8032(ha) || is_qla8042(ha)) && 5394 qla4_83xx_idc_dontreset(ha))) { 5395 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5396 ha->host_no, __func__)); 5397 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5398 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5399 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5400 goto dpc_post_reset_ha; 5401 } 5402 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5403 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5404 qla4xxx_recover_adapter(ha); 5405 5406 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5407 uint8_t wait_time = RESET_INTR_TOV; 5408 5409 while ((readw(&ha->reg->ctrl_status) & 5410 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5411 if (--wait_time == 0) 5412 break; 5413 msleep(1000); 5414 } 5415 if (wait_time == 0) 5416 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5417 "bit not cleared-- resetting\n", 5418 ha->host_no, __func__)); 5419 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5420 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5421 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5422 status = qla4xxx_recover_adapter(ha); 5423 } 5424 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5425 if (status == QLA_SUCCESS) 5426 ha->isp_ops->enable_intrs(ha); 5427 } 5428 } 5429 5430 dpc_post_reset_ha: 5431 /* ---- process AEN? --- */ 5432 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5433 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5434 5435 /* ---- Get DHCP IP Address? --- */ 5436 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5437 qla4xxx_get_dhcp_ip_address(ha); 5438 5439 /* ---- relogin device? --- */ 5440 if (adapter_up(ha) && 5441 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5442 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5443 } 5444 5445 /* ---- link change? --- */ 5446 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5447 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5448 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5449 /* ---- link down? --- */ 5450 qla4xxx_mark_all_devices_missing(ha); 5451 } else { 5452 /* ---- link up? --- * 5453 * F/W will auto login to all devices ONLY ONCE after 5454 * link up during driver initialization and runtime 5455 * fatal error recovery. Therefore, the driver must 5456 * manually relogin to devices when recovering from 5457 * connection failures, logouts, expired KATO, etc. */ 5458 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5459 qla4xxx_build_ddb_list(ha, ha->is_reset); 5460 iscsi_host_for_each_session(ha->host, 5461 qla4xxx_login_flash_ddb); 5462 } else 5463 qla4xxx_relogin_all_devices(ha); 5464 } 5465 } 5466 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) { 5467 if (qla4xxx_sysfs_ddb_export(ha)) 5468 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n", 5469 __func__); 5470 } 5471 } 5472 5473 /** 5474 * qla4xxx_free_adapter - release the adapter 5475 * @ha: pointer to adapter structure 5476 **/ 5477 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5478 { 5479 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5480 5481 /* Turn-off interrupts on the card. */ 5482 ha->isp_ops->disable_intrs(ha); 5483 5484 if (is_qla40XX(ha)) { 5485 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5486 &ha->reg->ctrl_status); 5487 readl(&ha->reg->ctrl_status); 5488 } else if (is_qla8022(ha)) { 5489 writel(0, &ha->qla4_82xx_reg->host_int); 5490 readl(&ha->qla4_82xx_reg->host_int); 5491 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5492 writel(0, &ha->qla4_83xx_reg->risc_intr); 5493 readl(&ha->qla4_83xx_reg->risc_intr); 5494 } 5495 5496 /* Remove timer thread, if present */ 5497 if (ha->timer_active) 5498 qla4xxx_stop_timer(ha); 5499 5500 /* Kill the kernel thread for this host */ 5501 if (ha->dpc_thread) 5502 destroy_workqueue(ha->dpc_thread); 5503 5504 /* Kill the kernel thread for this host */ 5505 if (ha->task_wq) 5506 destroy_workqueue(ha->task_wq); 5507 5508 /* Put firmware in known state */ 5509 ha->isp_ops->reset_firmware(ha); 5510 5511 if (is_qla80XX(ha)) { 5512 ha->isp_ops->idc_lock(ha); 5513 qla4_8xxx_clear_drv_active(ha); 5514 ha->isp_ops->idc_unlock(ha); 5515 } 5516 5517 /* Detach interrupts */ 5518 qla4xxx_free_irqs(ha); 5519 5520 /* free extra memory */ 5521 qla4xxx_mem_free(ha); 5522 } 5523 5524 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5525 { 5526 int status = 0; 5527 unsigned long mem_base, mem_len; 5528 struct pci_dev *pdev = ha->pdev; 5529 5530 status = pci_request_regions(pdev, DRIVER_NAME); 5531 if (status) { 5532 printk(KERN_WARNING 5533 "scsi(%ld) Failed to reserve PIO regions (%s) " 5534 "status=%d\n", ha->host_no, pci_name(pdev), status); 5535 goto iospace_error_exit; 5536 } 5537 5538 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5539 __func__, pdev->revision)); 5540 ha->revision_id = pdev->revision; 5541 5542 /* remap phys address */ 5543 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5544 mem_len = pci_resource_len(pdev, 0); 5545 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5546 __func__, mem_base, mem_len)); 5547 5548 /* mapping of pcibase pointer */ 5549 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5550 if (!ha->nx_pcibase) { 5551 printk(KERN_ERR 5552 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5553 pci_release_regions(ha->pdev); 5554 goto iospace_error_exit; 5555 } 5556 5557 /* Mapping of IO base pointer, door bell read and write pointer */ 5558 5559 /* mapping of IO base pointer */ 5560 if (is_qla8022(ha)) { 5561 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5562 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5563 (ha->pdev->devfn << 11)); 5564 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5565 QLA82XX_CAM_RAM_DB2); 5566 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5567 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5568 ((uint8_t *)ha->nx_pcibase); 5569 } 5570 5571 return 0; 5572 iospace_error_exit: 5573 return -ENOMEM; 5574 } 5575 5576 /*** 5577 * qla4xxx_iospace_config - maps registers 5578 * @ha: pointer to adapter structure 5579 * 5580 * This routines maps HBA's registers from the pci address space 5581 * into the kernel virtual address space for memory mapped i/o. 5582 **/ 5583 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5584 { 5585 unsigned long pio, pio_len, pio_flags; 5586 unsigned long mmio, mmio_len, mmio_flags; 5587 5588 pio = pci_resource_start(ha->pdev, 0); 5589 pio_len = pci_resource_len(ha->pdev, 0); 5590 pio_flags = pci_resource_flags(ha->pdev, 0); 5591 if (pio_flags & IORESOURCE_IO) { 5592 if (pio_len < MIN_IOBASE_LEN) { 5593 ql4_printk(KERN_WARNING, ha, 5594 "Invalid PCI I/O region size\n"); 5595 pio = 0; 5596 } 5597 } else { 5598 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5599 pio = 0; 5600 } 5601 5602 /* Use MMIO operations for all accesses. */ 5603 mmio = pci_resource_start(ha->pdev, 1); 5604 mmio_len = pci_resource_len(ha->pdev, 1); 5605 mmio_flags = pci_resource_flags(ha->pdev, 1); 5606 5607 if (!(mmio_flags & IORESOURCE_MEM)) { 5608 ql4_printk(KERN_ERR, ha, 5609 "region #0 not an MMIO resource, aborting\n"); 5610 5611 goto iospace_error_exit; 5612 } 5613 5614 if (mmio_len < MIN_IOBASE_LEN) { 5615 ql4_printk(KERN_ERR, ha, 5616 "Invalid PCI mem region size, aborting\n"); 5617 goto iospace_error_exit; 5618 } 5619 5620 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5621 ql4_printk(KERN_WARNING, ha, 5622 "Failed to reserve PIO/MMIO regions\n"); 5623 5624 goto iospace_error_exit; 5625 } 5626 5627 ha->pio_address = pio; 5628 ha->pio_length = pio_len; 5629 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5630 if (!ha->reg) { 5631 ql4_printk(KERN_ERR, ha, 5632 "cannot remap MMIO, aborting\n"); 5633 5634 goto iospace_error_exit; 5635 } 5636 5637 return 0; 5638 5639 iospace_error_exit: 5640 return -ENOMEM; 5641 } 5642 5643 static struct isp_operations qla4xxx_isp_ops = { 5644 .iospace_config = qla4xxx_iospace_config, 5645 .pci_config = qla4xxx_pci_config, 5646 .disable_intrs = qla4xxx_disable_intrs, 5647 .enable_intrs = qla4xxx_enable_intrs, 5648 .start_firmware = qla4xxx_start_firmware, 5649 .intr_handler = qla4xxx_intr_handler, 5650 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5651 .reset_chip = qla4xxx_soft_reset, 5652 .reset_firmware = qla4xxx_hw_reset, 5653 .queue_iocb = qla4xxx_queue_iocb, 5654 .complete_iocb = qla4xxx_complete_iocb, 5655 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5656 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5657 .get_sys_info = qla4xxx_get_sys_info, 5658 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5659 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5660 }; 5661 5662 static struct isp_operations qla4_82xx_isp_ops = { 5663 .iospace_config = qla4_8xxx_iospace_config, 5664 .pci_config = qla4_8xxx_pci_config, 5665 .disable_intrs = qla4_82xx_disable_intrs, 5666 .enable_intrs = qla4_82xx_enable_intrs, 5667 .start_firmware = qla4_8xxx_load_risc, 5668 .restart_firmware = qla4_82xx_try_start_fw, 5669 .intr_handler = qla4_82xx_intr_handler, 5670 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5671 .need_reset = qla4_8xxx_need_reset, 5672 .reset_chip = qla4_82xx_isp_reset, 5673 .reset_firmware = qla4_8xxx_stop_firmware, 5674 .queue_iocb = qla4_82xx_queue_iocb, 5675 .complete_iocb = qla4_82xx_complete_iocb, 5676 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5677 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5678 .get_sys_info = qla4_8xxx_get_sys_info, 5679 .rd_reg_direct = qla4_82xx_rd_32, 5680 .wr_reg_direct = qla4_82xx_wr_32, 5681 .rd_reg_indirect = qla4_82xx_md_rd_32, 5682 .wr_reg_indirect = qla4_82xx_md_wr_32, 5683 .idc_lock = qla4_82xx_idc_lock, 5684 .idc_unlock = qla4_82xx_idc_unlock, 5685 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5686 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5687 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5688 }; 5689 5690 static struct isp_operations qla4_83xx_isp_ops = { 5691 .iospace_config = qla4_8xxx_iospace_config, 5692 .pci_config = qla4_8xxx_pci_config, 5693 .disable_intrs = qla4_83xx_disable_intrs, 5694 .enable_intrs = qla4_83xx_enable_intrs, 5695 .start_firmware = qla4_8xxx_load_risc, 5696 .restart_firmware = qla4_83xx_start_firmware, 5697 .intr_handler = qla4_83xx_intr_handler, 5698 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5699 .need_reset = qla4_8xxx_need_reset, 5700 .reset_chip = qla4_83xx_isp_reset, 5701 .reset_firmware = qla4_8xxx_stop_firmware, 5702 .queue_iocb = qla4_83xx_queue_iocb, 5703 .complete_iocb = qla4_83xx_complete_iocb, 5704 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5705 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5706 .get_sys_info = qla4_8xxx_get_sys_info, 5707 .rd_reg_direct = qla4_83xx_rd_reg, 5708 .wr_reg_direct = qla4_83xx_wr_reg, 5709 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5710 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5711 .idc_lock = qla4_83xx_drv_lock, 5712 .idc_unlock = qla4_83xx_drv_unlock, 5713 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5714 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5715 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5716 }; 5717 5718 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5719 { 5720 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5721 } 5722 5723 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5724 { 5725 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5726 } 5727 5728 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5729 { 5730 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5731 } 5732 5733 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5734 { 5735 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5736 } 5737 5738 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5739 { 5740 struct scsi_qla_host *ha = data; 5741 char *str = buf; 5742 int rc; 5743 5744 switch (type) { 5745 case ISCSI_BOOT_ETH_FLAGS: 5746 rc = sprintf(str, "%d\n", (char)SYSFS_FLAG_FW_SEL_BOOT); 5747 break; 5748 case ISCSI_BOOT_ETH_INDEX: 5749 rc = sprintf(str, "0\n"); 5750 break; 5751 case ISCSI_BOOT_ETH_MAC: 5752 rc = sysfs_format_mac(str, ha->my_mac, 5753 MAC_ADDR_LEN); 5754 break; 5755 default: 5756 rc = -ENOSYS; 5757 break; 5758 } 5759 return rc; 5760 } 5761 5762 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5763 { 5764 int rc; 5765 5766 switch (type) { 5767 case ISCSI_BOOT_ETH_FLAGS: 5768 case ISCSI_BOOT_ETH_MAC: 5769 case ISCSI_BOOT_ETH_INDEX: 5770 rc = S_IRUGO; 5771 break; 5772 default: 5773 rc = 0; 5774 break; 5775 } 5776 return rc; 5777 } 5778 5779 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5780 { 5781 struct scsi_qla_host *ha = data; 5782 char *str = buf; 5783 int rc; 5784 5785 switch (type) { 5786 case ISCSI_BOOT_INI_INITIATOR_NAME: 5787 rc = sprintf(str, "%s\n", ha->name_string); 5788 break; 5789 default: 5790 rc = -ENOSYS; 5791 break; 5792 } 5793 return rc; 5794 } 5795 5796 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5797 { 5798 int rc; 5799 5800 switch (type) { 5801 case ISCSI_BOOT_INI_INITIATOR_NAME: 5802 rc = S_IRUGO; 5803 break; 5804 default: 5805 rc = 0; 5806 break; 5807 } 5808 return rc; 5809 } 5810 5811 static ssize_t 5812 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5813 char *buf) 5814 { 5815 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5816 char *str = buf; 5817 int rc; 5818 5819 switch (type) { 5820 case ISCSI_BOOT_TGT_NAME: 5821 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5822 break; 5823 case ISCSI_BOOT_TGT_IP_ADDR: 5824 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5825 rc = sprintf(buf, "%pI4\n", 5826 &boot_conn->dest_ipaddr.ip_address); 5827 else 5828 rc = sprintf(str, "%pI6\n", 5829 &boot_conn->dest_ipaddr.ip_address); 5830 break; 5831 case ISCSI_BOOT_TGT_PORT: 5832 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5833 break; 5834 case ISCSI_BOOT_TGT_CHAP_NAME: 5835 rc = sprintf(str, "%.*s\n", 5836 boot_conn->chap.target_chap_name_length, 5837 (char *)&boot_conn->chap.target_chap_name); 5838 break; 5839 case ISCSI_BOOT_TGT_CHAP_SECRET: 5840 rc = sprintf(str, "%.*s\n", 5841 boot_conn->chap.target_secret_length, 5842 (char *)&boot_conn->chap.target_secret); 5843 break; 5844 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5845 rc = sprintf(str, "%.*s\n", 5846 boot_conn->chap.intr_chap_name_length, 5847 (char *)&boot_conn->chap.intr_chap_name); 5848 break; 5849 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5850 rc = sprintf(str, "%.*s\n", 5851 boot_conn->chap.intr_secret_length, 5852 (char *)&boot_conn->chap.intr_secret); 5853 break; 5854 case ISCSI_BOOT_TGT_FLAGS: 5855 rc = sprintf(str, "%d\n", (char)SYSFS_FLAG_FW_SEL_BOOT); 5856 break; 5857 case ISCSI_BOOT_TGT_NIC_ASSOC: 5858 rc = sprintf(str, "0\n"); 5859 break; 5860 default: 5861 rc = -ENOSYS; 5862 break; 5863 } 5864 return rc; 5865 } 5866 5867 static ssize_t qla4xxx_show_boot_tgt_pri_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_pri_sess); 5871 5872 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5873 } 5874 5875 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5876 { 5877 struct scsi_qla_host *ha = data; 5878 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5879 5880 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5881 } 5882 5883 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5884 { 5885 int rc; 5886 5887 switch (type) { 5888 case ISCSI_BOOT_TGT_NAME: 5889 case ISCSI_BOOT_TGT_IP_ADDR: 5890 case ISCSI_BOOT_TGT_PORT: 5891 case ISCSI_BOOT_TGT_CHAP_NAME: 5892 case ISCSI_BOOT_TGT_CHAP_SECRET: 5893 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5894 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5895 case ISCSI_BOOT_TGT_NIC_ASSOC: 5896 case ISCSI_BOOT_TGT_FLAGS: 5897 rc = S_IRUGO; 5898 break; 5899 default: 5900 rc = 0; 5901 break; 5902 } 5903 return rc; 5904 } 5905 5906 static void qla4xxx_boot_release(void *data) 5907 { 5908 struct scsi_qla_host *ha = data; 5909 5910 scsi_host_put(ha->host); 5911 } 5912 5913 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5914 { 5915 dma_addr_t buf_dma; 5916 uint32_t addr, pri_addr, sec_addr; 5917 uint32_t offset; 5918 uint16_t func_num; 5919 uint8_t val; 5920 uint8_t *buf = NULL; 5921 size_t size = 13 * sizeof(uint8_t); 5922 int ret = QLA_SUCCESS; 5923 5924 func_num = PCI_FUNC(ha->pdev->devfn); 5925 5926 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5927 __func__, ha->pdev->device, func_num); 5928 5929 if (is_qla40XX(ha)) { 5930 if (func_num == 1) { 5931 addr = NVRAM_PORT0_BOOT_MODE; 5932 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5933 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5934 } else if (func_num == 3) { 5935 addr = NVRAM_PORT1_BOOT_MODE; 5936 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5937 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5938 } else { 5939 ret = QLA_ERROR; 5940 goto exit_boot_info; 5941 } 5942 5943 /* Check Boot Mode */ 5944 val = rd_nvram_byte(ha, addr); 5945 if (!(val & 0x07)) { 5946 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5947 "options : 0x%x\n", __func__, val)); 5948 ret = QLA_ERROR; 5949 goto exit_boot_info; 5950 } 5951 5952 /* get primary valid target index */ 5953 val = rd_nvram_byte(ha, pri_addr); 5954 if (val & BIT_7) 5955 ddb_index[0] = (val & 0x7f); 5956 5957 /* get secondary valid target index */ 5958 val = rd_nvram_byte(ha, sec_addr); 5959 if (val & BIT_7) 5960 ddb_index[1] = (val & 0x7f); 5961 goto exit_boot_info; 5962 } else if (is_qla80XX(ha)) { 5963 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5964 &buf_dma, GFP_KERNEL); 5965 if (!buf) { 5966 DEBUG2(ql4_printk(KERN_ERR, ha, 5967 "%s: Unable to allocate dma buffer\n", 5968 __func__)); 5969 ret = QLA_ERROR; 5970 goto exit_boot_info; 5971 } 5972 5973 if (ha->port_num == 0) 5974 offset = BOOT_PARAM_OFFSET_PORT0; 5975 else if (ha->port_num == 1) 5976 offset = BOOT_PARAM_OFFSET_PORT1; 5977 else { 5978 ret = QLA_ERROR; 5979 goto exit_boot_info_free; 5980 } 5981 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5982 offset; 5983 if (qla4xxx_get_flash(ha, buf_dma, addr, 5984 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5985 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5986 " failed\n", ha->host_no, __func__)); 5987 ret = QLA_ERROR; 5988 goto exit_boot_info_free; 5989 } 5990 /* Check Boot Mode */ 5991 if (!(buf[1] & 0x07)) { 5992 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5993 " : 0x%x\n", buf[1])); 5994 ret = QLA_ERROR; 5995 goto exit_boot_info_free; 5996 } 5997 5998 /* get primary valid target index */ 5999 if (buf[2] & BIT_7) 6000 ddb_index[0] = buf[2] & 0x7f; 6001 6002 /* get secondary valid target index */ 6003 if (buf[11] & BIT_7) 6004 ddb_index[1] = buf[11] & 0x7f; 6005 } else { 6006 ret = QLA_ERROR; 6007 goto exit_boot_info; 6008 } 6009 6010 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 6011 " target ID %d\n", __func__, ddb_index[0], 6012 ddb_index[1])); 6013 6014 exit_boot_info_free: 6015 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 6016 exit_boot_info: 6017 ha->pri_ddb_idx = ddb_index[0]; 6018 ha->sec_ddb_idx = ddb_index[1]; 6019 return ret; 6020 } 6021 6022 /** 6023 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 6024 * @ha: pointer to adapter structure 6025 * @username: CHAP username to be returned 6026 * @password: CHAP password to be returned 6027 * 6028 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 6029 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 6030 * So from the CHAP cache find the first BIDI CHAP entry and set it 6031 * to the boot record in sysfs. 6032 **/ 6033 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 6034 char *password) 6035 { 6036 int i, ret = -EINVAL; 6037 int max_chap_entries = 0; 6038 struct ql4_chap_table *chap_table; 6039 6040 if (is_qla80XX(ha)) 6041 max_chap_entries = (ha->hw.flt_chap_size / 2) / 6042 sizeof(struct ql4_chap_table); 6043 else 6044 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 6045 6046 if (!ha->chap_list) { 6047 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 6048 return ret; 6049 } 6050 6051 mutex_lock(&ha->chap_sem); 6052 for (i = 0; i < max_chap_entries; i++) { 6053 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 6054 if (chap_table->cookie != 6055 cpu_to_le16(CHAP_VALID_COOKIE)) { 6056 continue; 6057 } 6058 6059 if (chap_table->flags & BIT_7) /* local */ 6060 continue; 6061 6062 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6063 continue; 6064 6065 strscpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6066 strscpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6067 ret = 0; 6068 break; 6069 } 6070 mutex_unlock(&ha->chap_sem); 6071 6072 return ret; 6073 } 6074 6075 6076 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6077 struct ql4_boot_session_info *boot_sess, 6078 uint16_t ddb_index) 6079 { 6080 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6081 struct dev_db_entry *fw_ddb_entry; 6082 dma_addr_t fw_ddb_entry_dma; 6083 uint16_t idx; 6084 uint16_t options; 6085 int ret = QLA_SUCCESS; 6086 6087 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6088 &fw_ddb_entry_dma, GFP_KERNEL); 6089 if (!fw_ddb_entry) { 6090 DEBUG2(ql4_printk(KERN_ERR, ha, 6091 "%s: Unable to allocate dma buffer.\n", 6092 __func__)); 6093 ret = QLA_ERROR; 6094 return ret; 6095 } 6096 6097 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6098 fw_ddb_entry_dma, ddb_index)) { 6099 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6100 "index [%d]\n", __func__, ddb_index)); 6101 ret = QLA_ERROR; 6102 goto exit_boot_target; 6103 } 6104 6105 /* Update target name and IP from DDB */ 6106 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6107 min(sizeof(boot_sess->target_name), 6108 sizeof(fw_ddb_entry->iscsi_name))); 6109 6110 options = le16_to_cpu(fw_ddb_entry->options); 6111 if (options & DDB_OPT_IPV6_DEVICE) { 6112 memcpy(&boot_conn->dest_ipaddr.ip_address, 6113 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6114 } else { 6115 boot_conn->dest_ipaddr.ip_type = 0x1; 6116 memcpy(&boot_conn->dest_ipaddr.ip_address, 6117 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6118 } 6119 6120 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6121 6122 /* update chap information */ 6123 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6124 6125 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6126 6127 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6128 6129 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6130 target_chap_name, 6131 (char *)&boot_conn->chap.target_secret, 6132 idx); 6133 if (ret) { 6134 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6135 ret = QLA_ERROR; 6136 goto exit_boot_target; 6137 } 6138 6139 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6140 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6141 } 6142 6143 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6144 6145 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6146 6147 ret = qla4xxx_get_bidi_chap(ha, 6148 (char *)&boot_conn->chap.intr_chap_name, 6149 (char *)&boot_conn->chap.intr_secret); 6150 6151 if (ret) { 6152 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6153 ret = QLA_ERROR; 6154 goto exit_boot_target; 6155 } 6156 6157 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6158 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6159 } 6160 6161 exit_boot_target: 6162 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6163 fw_ddb_entry, fw_ddb_entry_dma); 6164 return ret; 6165 } 6166 6167 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6168 { 6169 uint16_t ddb_index[2]; 6170 int ret = QLA_ERROR; 6171 int rval; 6172 6173 memset(ddb_index, 0, sizeof(ddb_index)); 6174 ddb_index[0] = 0xffff; 6175 ddb_index[1] = 0xffff; 6176 ret = get_fw_boot_info(ha, ddb_index); 6177 if (ret != QLA_SUCCESS) { 6178 DEBUG2(ql4_printk(KERN_INFO, ha, 6179 "%s: No boot target configured.\n", __func__)); 6180 return ret; 6181 } 6182 6183 if (ql4xdisablesysfsboot) 6184 return QLA_SUCCESS; 6185 6186 if (ddb_index[0] == 0xffff) 6187 goto sec_target; 6188 6189 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6190 ddb_index[0]); 6191 if (rval != QLA_SUCCESS) { 6192 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6193 "configured\n", __func__)); 6194 } else 6195 ret = QLA_SUCCESS; 6196 6197 sec_target: 6198 if (ddb_index[1] == 0xffff) 6199 goto exit_get_boot_info; 6200 6201 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6202 ddb_index[1]); 6203 if (rval != QLA_SUCCESS) { 6204 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6205 " configured\n", __func__)); 6206 } else 6207 ret = QLA_SUCCESS; 6208 6209 exit_get_boot_info: 6210 return ret; 6211 } 6212 6213 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6214 { 6215 struct iscsi_boot_kobj *boot_kobj; 6216 6217 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6218 return QLA_ERROR; 6219 6220 if (ql4xdisablesysfsboot) { 6221 ql4_printk(KERN_INFO, ha, 6222 "%s: syfsboot disabled - driver will trigger login " 6223 "and publish session for discovery .\n", __func__); 6224 return QLA_SUCCESS; 6225 } 6226 6227 6228 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6229 if (!ha->boot_kset) 6230 goto kset_free; 6231 6232 if (!scsi_host_get(ha->host)) 6233 goto kset_free; 6234 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6235 qla4xxx_show_boot_tgt_pri_info, 6236 qla4xxx_tgt_get_attr_visibility, 6237 qla4xxx_boot_release); 6238 if (!boot_kobj) 6239 goto put_host; 6240 6241 if (!scsi_host_get(ha->host)) 6242 goto kset_free; 6243 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6244 qla4xxx_show_boot_tgt_sec_info, 6245 qla4xxx_tgt_get_attr_visibility, 6246 qla4xxx_boot_release); 6247 if (!boot_kobj) 6248 goto put_host; 6249 6250 if (!scsi_host_get(ha->host)) 6251 goto kset_free; 6252 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6253 qla4xxx_show_boot_ini_info, 6254 qla4xxx_ini_get_attr_visibility, 6255 qla4xxx_boot_release); 6256 if (!boot_kobj) 6257 goto put_host; 6258 6259 if (!scsi_host_get(ha->host)) 6260 goto kset_free; 6261 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6262 qla4xxx_show_boot_eth_info, 6263 qla4xxx_eth_get_attr_visibility, 6264 qla4xxx_boot_release); 6265 if (!boot_kobj) 6266 goto put_host; 6267 6268 return QLA_SUCCESS; 6269 6270 put_host: 6271 scsi_host_put(ha->host); 6272 kset_free: 6273 iscsi_boot_destroy_kset(ha->boot_kset); 6274 return -ENOMEM; 6275 } 6276 6277 6278 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6279 struct ql4_tuple_ddb *tddb) 6280 { 6281 struct iscsi_cls_session *cls_sess; 6282 struct iscsi_cls_conn *cls_conn; 6283 struct iscsi_session *sess; 6284 struct iscsi_conn *conn; 6285 6286 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6287 cls_sess = ddb_entry->sess; 6288 sess = cls_sess->dd_data; 6289 cls_conn = ddb_entry->conn; 6290 conn = cls_conn->dd_data; 6291 6292 tddb->tpgt = sess->tpgt; 6293 tddb->port = conn->persistent_port; 6294 strscpy(tddb->iscsi_name, sess->targetname, sizeof(tddb->iscsi_name)); 6295 strscpy(tddb->ip_addr, conn->persistent_address, sizeof(tddb->ip_addr)); 6296 } 6297 6298 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6299 struct ql4_tuple_ddb *tddb, 6300 uint8_t *flash_isid) 6301 { 6302 uint16_t options = 0; 6303 6304 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6305 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6306 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6307 6308 options = le16_to_cpu(fw_ddb_entry->options); 6309 if (options & DDB_OPT_IPV6_DEVICE) 6310 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6311 else 6312 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6313 6314 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6315 6316 if (flash_isid == NULL) 6317 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6318 sizeof(tddb->isid)); 6319 else 6320 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6321 } 6322 6323 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6324 struct ql4_tuple_ddb *old_tddb, 6325 struct ql4_tuple_ddb *new_tddb, 6326 uint8_t is_isid_compare) 6327 { 6328 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6329 return QLA_ERROR; 6330 6331 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6332 return QLA_ERROR; 6333 6334 if (old_tddb->port != new_tddb->port) 6335 return QLA_ERROR; 6336 6337 /* For multi sessions, driver generates the ISID, so do not compare 6338 * ISID in reset path since it would be a comparison between the 6339 * driver generated ISID and firmware generated ISID. This could 6340 * lead to adding duplicated DDBs in the list as driver generated 6341 * ISID would not match firmware generated ISID. 6342 */ 6343 if (is_isid_compare) { 6344 DEBUG2(ql4_printk(KERN_INFO, ha, 6345 "%s: old ISID [%pmR] New ISID [%pmR]\n", 6346 __func__, old_tddb->isid, new_tddb->isid)); 6347 6348 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6349 sizeof(old_tddb->isid))) 6350 return QLA_ERROR; 6351 } 6352 6353 DEBUG2(ql4_printk(KERN_INFO, ha, 6354 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6355 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6356 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6357 new_tddb->ip_addr, new_tddb->iscsi_name)); 6358 6359 return QLA_SUCCESS; 6360 } 6361 6362 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6363 struct dev_db_entry *fw_ddb_entry, 6364 uint32_t *index) 6365 { 6366 struct ddb_entry *ddb_entry; 6367 struct ql4_tuple_ddb *fw_tddb = NULL; 6368 struct ql4_tuple_ddb *tmp_tddb = NULL; 6369 int idx; 6370 int ret = QLA_ERROR; 6371 6372 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6373 if (!fw_tddb) { 6374 DEBUG2(ql4_printk(KERN_WARNING, ha, 6375 "Memory Allocation failed.\n")); 6376 ret = QLA_SUCCESS; 6377 goto exit_check; 6378 } 6379 6380 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6381 if (!tmp_tddb) { 6382 DEBUG2(ql4_printk(KERN_WARNING, ha, 6383 "Memory Allocation failed.\n")); 6384 ret = QLA_SUCCESS; 6385 goto exit_check; 6386 } 6387 6388 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6389 6390 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6391 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6392 if (ddb_entry == NULL) 6393 continue; 6394 6395 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6396 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6397 ret = QLA_SUCCESS; /* found */ 6398 if (index != NULL) 6399 *index = idx; 6400 goto exit_check; 6401 } 6402 } 6403 6404 exit_check: 6405 vfree(fw_tddb); 6406 vfree(tmp_tddb); 6407 return ret; 6408 } 6409 6410 /** 6411 * qla4xxx_check_existing_isid - check if target with same isid exist 6412 * in target list 6413 * @list_nt: list of target 6414 * @isid: isid to check 6415 * 6416 * This routine return QLA_SUCCESS if target with same isid exist 6417 **/ 6418 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6419 { 6420 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6421 struct dev_db_entry *fw_ddb_entry; 6422 6423 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6424 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6425 6426 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6427 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6428 return QLA_SUCCESS; 6429 } 6430 } 6431 return QLA_ERROR; 6432 } 6433 6434 /** 6435 * qla4xxx_update_isid - compare ddbs and updated isid 6436 * @ha: Pointer to host adapter structure. 6437 * @list_nt: list of nt target 6438 * @fw_ddb_entry: firmware ddb entry 6439 * 6440 * This routine update isid if ddbs have same iqn, same isid and 6441 * different IP addr. 6442 * Return QLA_SUCCESS if isid is updated. 6443 **/ 6444 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6445 struct list_head *list_nt, 6446 struct dev_db_entry *fw_ddb_entry) 6447 { 6448 uint8_t base_value, i; 6449 6450 base_value = fw_ddb_entry->isid[1] & 0x1f; 6451 for (i = 0; i < 8; i++) { 6452 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6453 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6454 break; 6455 } 6456 6457 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6458 return QLA_ERROR; 6459 6460 return QLA_SUCCESS; 6461 } 6462 6463 /** 6464 * qla4xxx_should_update_isid - check if isid need to update 6465 * @ha: Pointer to host adapter structure. 6466 * @old_tddb: ddb tuple 6467 * @new_tddb: ddb tuple 6468 * 6469 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6470 * same isid 6471 **/ 6472 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6473 struct ql4_tuple_ddb *old_tddb, 6474 struct ql4_tuple_ddb *new_tddb) 6475 { 6476 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6477 /* Same ip */ 6478 if (old_tddb->port == new_tddb->port) 6479 return QLA_ERROR; 6480 } 6481 6482 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6483 /* different iqn */ 6484 return QLA_ERROR; 6485 6486 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6487 sizeof(old_tddb->isid))) 6488 /* different isid */ 6489 return QLA_ERROR; 6490 6491 return QLA_SUCCESS; 6492 } 6493 6494 /** 6495 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6496 * @ha: Pointer to host adapter structure. 6497 * @list_nt: list of nt target. 6498 * @fw_ddb_entry: firmware ddb entry. 6499 * 6500 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6501 * duplicate ddb in list_nt. 6502 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6503 * Note: This function also update isid of DDB if required. 6504 **/ 6505 6506 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6507 struct list_head *list_nt, 6508 struct dev_db_entry *fw_ddb_entry) 6509 { 6510 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6511 struct ql4_tuple_ddb *fw_tddb = NULL; 6512 struct ql4_tuple_ddb *tmp_tddb = NULL; 6513 int rval, ret = QLA_ERROR; 6514 6515 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6516 if (!fw_tddb) { 6517 DEBUG2(ql4_printk(KERN_WARNING, ha, 6518 "Memory Allocation failed.\n")); 6519 ret = QLA_SUCCESS; 6520 goto exit_check; 6521 } 6522 6523 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6524 if (!tmp_tddb) { 6525 DEBUG2(ql4_printk(KERN_WARNING, ha, 6526 "Memory Allocation failed.\n")); 6527 ret = QLA_SUCCESS; 6528 goto exit_check; 6529 } 6530 6531 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6532 6533 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6534 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6535 nt_ddb_idx->flash_isid); 6536 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6537 /* found duplicate ddb */ 6538 if (ret == QLA_SUCCESS) 6539 goto exit_check; 6540 } 6541 6542 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6543 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6544 6545 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6546 if (ret == QLA_SUCCESS) { 6547 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6548 if (rval == QLA_SUCCESS) 6549 ret = QLA_ERROR; 6550 else 6551 ret = QLA_SUCCESS; 6552 6553 goto exit_check; 6554 } 6555 } 6556 6557 exit_check: 6558 vfree(fw_tddb); 6559 vfree(tmp_tddb); 6560 return ret; 6561 } 6562 6563 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6564 { 6565 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6566 6567 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6568 list_del_init(&ddb_idx->list); 6569 vfree(ddb_idx); 6570 } 6571 } 6572 6573 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6574 struct dev_db_entry *fw_ddb_entry) 6575 { 6576 struct iscsi_endpoint *ep; 6577 struct sockaddr_in *addr; 6578 struct sockaddr_in6 *addr6; 6579 struct sockaddr *t_addr; 6580 struct sockaddr_storage *dst_addr; 6581 char *ip; 6582 6583 /* TODO: need to destroy on unload iscsi_endpoint*/ 6584 dst_addr = vmalloc(sizeof(*dst_addr)); 6585 if (!dst_addr) 6586 return NULL; 6587 6588 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6589 t_addr = (struct sockaddr *)dst_addr; 6590 t_addr->sa_family = AF_INET6; 6591 addr6 = (struct sockaddr_in6 *)dst_addr; 6592 ip = (char *)&addr6->sin6_addr; 6593 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6594 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6595 6596 } else { 6597 t_addr = (struct sockaddr *)dst_addr; 6598 t_addr->sa_family = AF_INET; 6599 addr = (struct sockaddr_in *)dst_addr; 6600 ip = (char *)&addr->sin_addr; 6601 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6602 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6603 } 6604 6605 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6606 vfree(dst_addr); 6607 return ep; 6608 } 6609 6610 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6611 { 6612 if (ql4xdisablesysfsboot) 6613 return QLA_SUCCESS; 6614 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6615 return QLA_ERROR; 6616 return QLA_SUCCESS; 6617 } 6618 6619 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6620 struct ddb_entry *ddb_entry, 6621 uint16_t idx) 6622 { 6623 uint16_t def_timeout; 6624 6625 ddb_entry->ddb_type = FLASH_DDB; 6626 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6627 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6628 ddb_entry->ha = ha; 6629 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6630 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6631 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6632 6633 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6634 atomic_set(&ddb_entry->relogin_timer, 0); 6635 atomic_set(&ddb_entry->relogin_retry_count, 0); 6636 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6637 ddb_entry->default_relogin_timeout = 6638 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6639 def_timeout : LOGIN_TOV; 6640 ddb_entry->default_time2wait = 6641 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6642 6643 if (ql4xdisablesysfsboot && 6644 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6645 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6646 } 6647 6648 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6649 { 6650 uint32_t idx = 0; 6651 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6652 uint32_t sts[MBOX_REG_COUNT]; 6653 uint32_t ip_state; 6654 unsigned long wtime; 6655 int ret; 6656 6657 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6658 do { 6659 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6660 if (ip_idx[idx] == -1) 6661 continue; 6662 6663 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6664 6665 if (ret == QLA_ERROR) { 6666 ip_idx[idx] = -1; 6667 continue; 6668 } 6669 6670 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6671 6672 DEBUG2(ql4_printk(KERN_INFO, ha, 6673 "Waiting for IP state for idx = %d, state = 0x%x\n", 6674 ip_idx[idx], ip_state)); 6675 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6676 ip_state == IP_ADDRSTATE_INVALID || 6677 ip_state == IP_ADDRSTATE_PREFERRED || 6678 ip_state == IP_ADDRSTATE_DEPRICATED || 6679 ip_state == IP_ADDRSTATE_DISABLING) 6680 ip_idx[idx] = -1; 6681 } 6682 6683 /* Break if all IP states checked */ 6684 if ((ip_idx[0] == -1) && 6685 (ip_idx[1] == -1) && 6686 (ip_idx[2] == -1) && 6687 (ip_idx[3] == -1)) 6688 break; 6689 schedule_timeout_uninterruptible(HZ); 6690 } while (time_after(wtime, jiffies)); 6691 } 6692 6693 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6694 struct dev_db_entry *flash_ddb_entry) 6695 { 6696 uint16_t options = 0; 6697 size_t ip_len = IP_ADDR_LEN; 6698 6699 options = le16_to_cpu(fw_ddb_entry->options); 6700 if (options & DDB_OPT_IPV6_DEVICE) 6701 ip_len = IPv6_ADDR_LEN; 6702 6703 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6704 return QLA_ERROR; 6705 6706 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6707 sizeof(fw_ddb_entry->isid))) 6708 return QLA_ERROR; 6709 6710 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6711 sizeof(fw_ddb_entry->port))) 6712 return QLA_ERROR; 6713 6714 return QLA_SUCCESS; 6715 } 6716 6717 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6718 struct dev_db_entry *fw_ddb_entry, 6719 uint32_t fw_idx, uint32_t *flash_index) 6720 { 6721 struct dev_db_entry *flash_ddb_entry; 6722 dma_addr_t flash_ddb_entry_dma; 6723 uint32_t idx = 0; 6724 int max_ddbs; 6725 int ret = QLA_ERROR, status; 6726 6727 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6728 MAX_DEV_DB_ENTRIES; 6729 6730 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6731 &flash_ddb_entry_dma); 6732 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6733 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6734 goto exit_find_st_idx; 6735 } 6736 6737 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6738 flash_ddb_entry_dma, fw_idx); 6739 if (status == QLA_SUCCESS) { 6740 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6741 if (status == QLA_SUCCESS) { 6742 *flash_index = fw_idx; 6743 ret = QLA_SUCCESS; 6744 goto exit_find_st_idx; 6745 } 6746 } 6747 6748 for (idx = 0; idx < max_ddbs; idx++) { 6749 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6750 flash_ddb_entry_dma, idx); 6751 if (status == QLA_ERROR) 6752 continue; 6753 6754 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6755 if (status == QLA_SUCCESS) { 6756 *flash_index = idx; 6757 ret = QLA_SUCCESS; 6758 goto exit_find_st_idx; 6759 } 6760 } 6761 6762 if (idx == max_ddbs) 6763 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6764 fw_idx); 6765 6766 exit_find_st_idx: 6767 if (flash_ddb_entry) 6768 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6769 flash_ddb_entry_dma); 6770 6771 return ret; 6772 } 6773 6774 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6775 struct list_head *list_st) 6776 { 6777 struct qla_ddb_index *st_ddb_idx; 6778 int max_ddbs; 6779 int fw_idx_size; 6780 struct dev_db_entry *fw_ddb_entry; 6781 dma_addr_t fw_ddb_dma; 6782 int ret; 6783 uint32_t idx = 0, next_idx = 0; 6784 uint32_t state = 0, conn_err = 0; 6785 uint32_t flash_index = -1; 6786 uint16_t conn_id = 0; 6787 6788 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6789 &fw_ddb_dma); 6790 if (fw_ddb_entry == NULL) { 6791 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6792 goto exit_st_list; 6793 } 6794 6795 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6796 MAX_DEV_DB_ENTRIES; 6797 fw_idx_size = sizeof(struct qla_ddb_index); 6798 6799 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6800 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6801 NULL, &next_idx, &state, 6802 &conn_err, NULL, &conn_id); 6803 if (ret == QLA_ERROR) 6804 break; 6805 6806 /* Ignore DDB if invalid state (unassigned) */ 6807 if (state == DDB_DS_UNASSIGNED) 6808 goto continue_next_st; 6809 6810 /* Check if ST, add to the list_st */ 6811 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6812 goto continue_next_st; 6813 6814 st_ddb_idx = vzalloc(fw_idx_size); 6815 if (!st_ddb_idx) 6816 break; 6817 6818 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6819 &flash_index); 6820 if (ret == QLA_ERROR) { 6821 ql4_printk(KERN_ERR, ha, 6822 "No flash entry for ST at idx [%d]\n", idx); 6823 st_ddb_idx->flash_ddb_idx = idx; 6824 } else { 6825 ql4_printk(KERN_INFO, ha, 6826 "ST at idx [%d] is stored at flash [%d]\n", 6827 idx, flash_index); 6828 st_ddb_idx->flash_ddb_idx = flash_index; 6829 } 6830 6831 st_ddb_idx->fw_ddb_idx = idx; 6832 6833 list_add_tail(&st_ddb_idx->list, list_st); 6834 continue_next_st: 6835 if (next_idx == 0) 6836 break; 6837 } 6838 6839 exit_st_list: 6840 if (fw_ddb_entry) 6841 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6842 } 6843 6844 /** 6845 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6846 * @ha: pointer to adapter structure 6847 * @list_ddb: List from which failed ddb to be removed 6848 * 6849 * Iterate over the list of DDBs and find and remove DDBs that are either in 6850 * no connection active state or failed state 6851 **/ 6852 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6853 struct list_head *list_ddb) 6854 { 6855 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6856 uint32_t next_idx = 0; 6857 uint32_t state = 0, conn_err = 0; 6858 int ret; 6859 6860 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6861 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6862 NULL, 0, NULL, &next_idx, &state, 6863 &conn_err, NULL, NULL); 6864 if (ret == QLA_ERROR) 6865 continue; 6866 6867 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6868 state == DDB_DS_SESSION_FAILED) { 6869 list_del_init(&ddb_idx->list); 6870 vfree(ddb_idx); 6871 } 6872 } 6873 } 6874 6875 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6876 struct ddb_entry *ddb_entry, 6877 struct dev_db_entry *fw_ddb_entry) 6878 { 6879 struct iscsi_cls_session *cls_sess; 6880 struct iscsi_session *sess; 6881 uint32_t max_ddbs = 0; 6882 uint16_t ddb_link = -1; 6883 6884 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6885 MAX_DEV_DB_ENTRIES; 6886 6887 cls_sess = ddb_entry->sess; 6888 sess = cls_sess->dd_data; 6889 6890 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6891 if (ddb_link < max_ddbs) 6892 sess->discovery_parent_idx = ddb_link; 6893 else 6894 sess->discovery_parent_idx = DDB_NO_LINK; 6895 } 6896 6897 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6898 struct dev_db_entry *fw_ddb_entry, 6899 int is_reset, uint16_t idx) 6900 { 6901 struct iscsi_cls_session *cls_sess; 6902 struct iscsi_session *sess; 6903 struct iscsi_cls_conn *cls_conn; 6904 struct iscsi_endpoint *ep; 6905 uint16_t cmds_max = 32; 6906 uint16_t conn_id = 0; 6907 uint32_t initial_cmdsn = 0; 6908 int ret = QLA_SUCCESS; 6909 6910 struct ddb_entry *ddb_entry = NULL; 6911 6912 /* Create session object, with INVALID_ENTRY, 6913 * the targer_id would get set when we issue the login 6914 */ 6915 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6916 cmds_max, sizeof(struct ddb_entry), 6917 sizeof(struct ql4_task_data), 6918 initial_cmdsn, INVALID_ENTRY); 6919 if (!cls_sess) { 6920 ret = QLA_ERROR; 6921 goto exit_setup; 6922 } 6923 6924 /* 6925 * so calling module_put function to decrement the 6926 * reference count. 6927 **/ 6928 module_put(qla4xxx_iscsi_transport.owner); 6929 sess = cls_sess->dd_data; 6930 ddb_entry = sess->dd_data; 6931 ddb_entry->sess = cls_sess; 6932 6933 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6934 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6935 sizeof(struct dev_db_entry)); 6936 6937 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6938 6939 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6940 6941 if (!cls_conn) { 6942 ret = QLA_ERROR; 6943 goto exit_setup; 6944 } 6945 6946 ddb_entry->conn = cls_conn; 6947 6948 /* Setup ep, for displaying attributes in sysfs */ 6949 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6950 if (ep) { 6951 ep->conn = cls_conn; 6952 cls_conn->ep = ep; 6953 } else { 6954 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6955 ret = QLA_ERROR; 6956 goto exit_setup; 6957 } 6958 6959 /* Update sess/conn params */ 6960 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6961 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6962 6963 if (is_reset == RESET_ADAPTER) { 6964 iscsi_block_session(cls_sess); 6965 /* Use the relogin path to discover new devices 6966 * by short-circuiting the logic of setting 6967 * timer to relogin - instead set the flags 6968 * to initiate login right away. 6969 */ 6970 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6971 set_bit(DF_RELOGIN, &ddb_entry->flags); 6972 } 6973 6974 exit_setup: 6975 return ret; 6976 } 6977 6978 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6979 struct list_head *list_ddb, 6980 struct dev_db_entry *fw_ddb_entry) 6981 { 6982 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6983 uint16_t ddb_link; 6984 6985 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6986 6987 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6988 if (ddb_idx->fw_ddb_idx == ddb_link) { 6989 DEBUG2(ql4_printk(KERN_INFO, ha, 6990 "Updating NT parent idx from [%d] to [%d]\n", 6991 ddb_link, ddb_idx->flash_ddb_idx)); 6992 fw_ddb_entry->ddb_link = 6993 cpu_to_le16(ddb_idx->flash_ddb_idx); 6994 return; 6995 } 6996 } 6997 } 6998 6999 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 7000 struct list_head *list_nt, 7001 struct list_head *list_st, 7002 int is_reset) 7003 { 7004 struct dev_db_entry *fw_ddb_entry; 7005 struct ddb_entry *ddb_entry = NULL; 7006 dma_addr_t fw_ddb_dma; 7007 int max_ddbs; 7008 int fw_idx_size; 7009 int ret; 7010 uint32_t idx = 0, next_idx = 0; 7011 uint32_t state = 0, conn_err = 0; 7012 uint32_t ddb_idx = -1; 7013 uint16_t conn_id = 0; 7014 uint16_t ddb_link = -1; 7015 struct qla_ddb_index *nt_ddb_idx; 7016 7017 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7018 &fw_ddb_dma); 7019 if (fw_ddb_entry == NULL) { 7020 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7021 goto exit_nt_list; 7022 } 7023 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7024 MAX_DEV_DB_ENTRIES; 7025 fw_idx_size = sizeof(struct qla_ddb_index); 7026 7027 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7028 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7029 NULL, &next_idx, &state, 7030 &conn_err, NULL, &conn_id); 7031 if (ret == QLA_ERROR) 7032 break; 7033 7034 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 7035 goto continue_next_nt; 7036 7037 /* Check if NT, then add to list it */ 7038 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 7039 goto continue_next_nt; 7040 7041 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 7042 if (ddb_link < max_ddbs) 7043 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 7044 7045 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 7046 state == DDB_DS_SESSION_FAILED) && 7047 (is_reset == INIT_ADAPTER)) 7048 goto continue_next_nt; 7049 7050 DEBUG2(ql4_printk(KERN_INFO, ha, 7051 "Adding DDB to session = 0x%x\n", idx)); 7052 7053 if (is_reset == INIT_ADAPTER) { 7054 nt_ddb_idx = vmalloc(fw_idx_size); 7055 if (!nt_ddb_idx) 7056 break; 7057 7058 nt_ddb_idx->fw_ddb_idx = idx; 7059 7060 /* Copy original isid as it may get updated in function 7061 * qla4xxx_update_isid(). We need original isid in 7062 * function qla4xxx_compare_tuple_ddb to find duplicate 7063 * target */ 7064 memcpy(&nt_ddb_idx->flash_isid[0], 7065 &fw_ddb_entry->isid[0], 7066 sizeof(nt_ddb_idx->flash_isid)); 7067 7068 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7069 fw_ddb_entry); 7070 if (ret == QLA_SUCCESS) { 7071 /* free nt_ddb_idx and do not add to list_nt */ 7072 vfree(nt_ddb_idx); 7073 goto continue_next_nt; 7074 } 7075 7076 /* Copy updated isid */ 7077 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7078 sizeof(struct dev_db_entry)); 7079 7080 list_add_tail(&nt_ddb_idx->list, list_nt); 7081 } else if (is_reset == RESET_ADAPTER) { 7082 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7083 &ddb_idx); 7084 if (ret == QLA_SUCCESS) { 7085 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7086 ddb_idx); 7087 if (ddb_entry != NULL) 7088 qla4xxx_update_sess_disc_idx(ha, 7089 ddb_entry, 7090 fw_ddb_entry); 7091 goto continue_next_nt; 7092 } 7093 } 7094 7095 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7096 if (ret == QLA_ERROR) 7097 goto exit_nt_list; 7098 7099 continue_next_nt: 7100 if (next_idx == 0) 7101 break; 7102 } 7103 7104 exit_nt_list: 7105 if (fw_ddb_entry) 7106 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7107 } 7108 7109 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7110 struct list_head *list_nt, 7111 uint16_t target_id) 7112 { 7113 struct dev_db_entry *fw_ddb_entry; 7114 dma_addr_t fw_ddb_dma; 7115 int max_ddbs; 7116 int fw_idx_size; 7117 int ret; 7118 uint32_t idx = 0, next_idx = 0; 7119 uint32_t state = 0, conn_err = 0; 7120 uint16_t conn_id = 0; 7121 struct qla_ddb_index *nt_ddb_idx; 7122 7123 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7124 &fw_ddb_dma); 7125 if (fw_ddb_entry == NULL) { 7126 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7127 goto exit_new_nt_list; 7128 } 7129 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7130 MAX_DEV_DB_ENTRIES; 7131 fw_idx_size = sizeof(struct qla_ddb_index); 7132 7133 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7134 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7135 NULL, &next_idx, &state, 7136 &conn_err, NULL, &conn_id); 7137 if (ret == QLA_ERROR) 7138 break; 7139 7140 /* Check if NT, then add it to list */ 7141 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7142 goto continue_next_new_nt; 7143 7144 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7145 goto continue_next_new_nt; 7146 7147 DEBUG2(ql4_printk(KERN_INFO, ha, 7148 "Adding DDB to session = 0x%x\n", idx)); 7149 7150 nt_ddb_idx = vmalloc(fw_idx_size); 7151 if (!nt_ddb_idx) 7152 break; 7153 7154 nt_ddb_idx->fw_ddb_idx = idx; 7155 7156 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7157 if (ret == QLA_SUCCESS) { 7158 /* free nt_ddb_idx and do not add to list_nt */ 7159 vfree(nt_ddb_idx); 7160 goto continue_next_new_nt; 7161 } 7162 7163 if (target_id < max_ddbs) 7164 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7165 7166 list_add_tail(&nt_ddb_idx->list, list_nt); 7167 7168 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7169 idx); 7170 if (ret == QLA_ERROR) 7171 goto exit_new_nt_list; 7172 7173 continue_next_new_nt: 7174 if (next_idx == 0) 7175 break; 7176 } 7177 7178 exit_new_nt_list: 7179 if (fw_ddb_entry) 7180 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7181 } 7182 7183 /** 7184 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7185 * @dev: dev associated with the sysfs entry 7186 * @data: pointer to flashnode session object 7187 * 7188 * Returns: 7189 * 1: if flashnode entry is non-persistent 7190 * 0: if flashnode entry is persistent 7191 **/ 7192 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, 7193 const void *data) 7194 { 7195 struct iscsi_bus_flash_session *fnode_sess; 7196 7197 if (!iscsi_flashnode_bus_match(dev, NULL)) 7198 return 0; 7199 7200 fnode_sess = iscsi_dev_to_flash_session(dev); 7201 7202 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7203 } 7204 7205 /** 7206 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7207 * @ha: pointer to host 7208 * @fw_ddb_entry: flash ddb data 7209 * @idx: target index 7210 * @user: if set then this call is made from userland else from kernel 7211 * 7212 * Returns: 7213 * On sucess: QLA_SUCCESS 7214 * On failure: QLA_ERROR 7215 * 7216 * This create separate sysfs entries for session and connection attributes of 7217 * the given fw ddb entry. 7218 * If this is invoked as a result of a userspace call then the entry is marked 7219 * as nonpersistent using flash_state field. 7220 **/ 7221 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7222 struct dev_db_entry *fw_ddb_entry, 7223 uint16_t *idx, int user) 7224 { 7225 struct iscsi_bus_flash_session *fnode_sess = NULL; 7226 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7227 int rc = QLA_ERROR; 7228 7229 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7230 &qla4xxx_iscsi_transport, 0); 7231 if (!fnode_sess) { 7232 ql4_printk(KERN_ERR, ha, 7233 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7234 __func__, *idx, ha->host_no); 7235 goto exit_tgt_create; 7236 } 7237 7238 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7239 &qla4xxx_iscsi_transport, 0); 7240 if (!fnode_conn) { 7241 ql4_printk(KERN_ERR, ha, 7242 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7243 __func__, *idx, ha->host_no); 7244 goto free_sess; 7245 } 7246 7247 if (user) { 7248 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7249 } else { 7250 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7251 7252 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7253 fnode_sess->is_boot_target = 1; 7254 else 7255 fnode_sess->is_boot_target = 0; 7256 } 7257 7258 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7259 fw_ddb_entry); 7260 if (rc) 7261 goto free_sess; 7262 7263 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7264 __func__, fnode_sess->dev.kobj.name); 7265 7266 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7267 __func__, fnode_conn->dev.kobj.name); 7268 7269 return QLA_SUCCESS; 7270 7271 free_sess: 7272 iscsi_destroy_flashnode_sess(fnode_sess); 7273 7274 exit_tgt_create: 7275 return QLA_ERROR; 7276 } 7277 7278 /** 7279 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7280 * @shost: pointer to host 7281 * @buf: type of ddb entry (ipv4/ipv6) 7282 * @len: length of buf 7283 * 7284 * This creates new ddb entry in the flash by finding first free index and 7285 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7286 **/ 7287 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7288 int len) 7289 { 7290 struct scsi_qla_host *ha = to_qla_host(shost); 7291 struct dev_db_entry *fw_ddb_entry = NULL; 7292 dma_addr_t fw_ddb_entry_dma; 7293 struct device *dev; 7294 uint16_t idx = 0; 7295 uint16_t max_ddbs = 0; 7296 uint32_t options = 0; 7297 uint32_t rval = QLA_ERROR; 7298 7299 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7300 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7301 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7302 __func__)); 7303 goto exit_ddb_add; 7304 } 7305 7306 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7307 MAX_DEV_DB_ENTRIES; 7308 7309 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7310 &fw_ddb_entry_dma, GFP_KERNEL); 7311 if (!fw_ddb_entry) { 7312 DEBUG2(ql4_printk(KERN_ERR, ha, 7313 "%s: Unable to allocate dma buffer\n", 7314 __func__)); 7315 goto exit_ddb_add; 7316 } 7317 7318 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7319 qla4xxx_sysfs_ddb_is_non_persistent); 7320 if (dev) { 7321 ql4_printk(KERN_ERR, ha, 7322 "%s: A non-persistent entry %s found\n", 7323 __func__, dev->kobj.name); 7324 put_device(dev); 7325 goto exit_ddb_add; 7326 } 7327 7328 /* Index 0 and 1 are reserved for boot target entries */ 7329 for (idx = 2; idx < max_ddbs; idx++) { 7330 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7331 fw_ddb_entry_dma, idx)) 7332 break; 7333 } 7334 7335 if (idx == max_ddbs) 7336 goto exit_ddb_add; 7337 7338 if (!strncasecmp("ipv6", buf, 4)) 7339 options |= IPV6_DEFAULT_DDB_ENTRY; 7340 7341 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7342 if (rval == QLA_ERROR) 7343 goto exit_ddb_add; 7344 7345 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7346 7347 exit_ddb_add: 7348 if (fw_ddb_entry) 7349 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7350 fw_ddb_entry, fw_ddb_entry_dma); 7351 if (rval == QLA_SUCCESS) 7352 return idx; 7353 else 7354 return -EIO; 7355 } 7356 7357 /** 7358 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7359 * @fnode_sess: pointer to session attrs of flash ddb entry 7360 * @fnode_conn: pointer to connection attrs of flash ddb entry 7361 * 7362 * This writes the contents of target ddb buffer to Flash with a valid cookie 7363 * value in order to make the ddb entry persistent. 7364 **/ 7365 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7366 struct iscsi_bus_flash_conn *fnode_conn) 7367 { 7368 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7369 struct scsi_qla_host *ha = to_qla_host(shost); 7370 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7371 struct dev_db_entry *fw_ddb_entry = NULL; 7372 dma_addr_t fw_ddb_entry_dma; 7373 uint32_t options = 0; 7374 int rval = 0; 7375 7376 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7377 &fw_ddb_entry_dma, GFP_KERNEL); 7378 if (!fw_ddb_entry) { 7379 DEBUG2(ql4_printk(KERN_ERR, ha, 7380 "%s: Unable to allocate dma buffer\n", 7381 __func__)); 7382 rval = -ENOMEM; 7383 goto exit_ddb_apply; 7384 } 7385 7386 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7387 options |= IPV6_DEFAULT_DDB_ENTRY; 7388 7389 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7390 if (rval == QLA_ERROR) 7391 goto exit_ddb_apply; 7392 7393 dev_db_start_offset += (fnode_sess->target_id * 7394 sizeof(*fw_ddb_entry)); 7395 7396 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7397 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7398 7399 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7400 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7401 7402 if (rval == QLA_SUCCESS) { 7403 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7404 ql4_printk(KERN_INFO, ha, 7405 "%s: flash node %u of host %lu written to flash\n", 7406 __func__, fnode_sess->target_id, ha->host_no); 7407 } else { 7408 rval = -EIO; 7409 ql4_printk(KERN_ERR, ha, 7410 "%s: Error while writing flash node %u of host %lu to flash\n", 7411 __func__, fnode_sess->target_id, ha->host_no); 7412 } 7413 7414 exit_ddb_apply: 7415 if (fw_ddb_entry) 7416 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7417 fw_ddb_entry, fw_ddb_entry_dma); 7418 return rval; 7419 } 7420 7421 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7422 struct dev_db_entry *fw_ddb_entry, 7423 uint16_t idx) 7424 { 7425 struct dev_db_entry *ddb_entry = NULL; 7426 dma_addr_t ddb_entry_dma; 7427 unsigned long wtime; 7428 uint32_t mbx_sts = 0; 7429 uint32_t state = 0, conn_err = 0; 7430 uint16_t tmo = 0; 7431 int ret = 0; 7432 7433 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7434 &ddb_entry_dma, GFP_KERNEL); 7435 if (!ddb_entry) { 7436 DEBUG2(ql4_printk(KERN_ERR, ha, 7437 "%s: Unable to allocate dma buffer\n", 7438 __func__)); 7439 return QLA_ERROR; 7440 } 7441 7442 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7443 7444 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7445 if (ret != QLA_SUCCESS) { 7446 DEBUG2(ql4_printk(KERN_ERR, ha, 7447 "%s: Unable to set ddb entry for index %d\n", 7448 __func__, idx)); 7449 goto exit_ddb_conn_open; 7450 } 7451 7452 qla4xxx_conn_open(ha, idx); 7453 7454 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7455 tmo = ((ha->def_timeout > LOGIN_TOV) && 7456 (ha->def_timeout < LOGIN_TOV * 10) ? 7457 ha->def_timeout : LOGIN_TOV); 7458 7459 DEBUG2(ql4_printk(KERN_INFO, ha, 7460 "Default time to wait for login to ddb %d\n", tmo)); 7461 7462 wtime = jiffies + (HZ * tmo); 7463 do { 7464 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7465 NULL, &state, &conn_err, NULL, 7466 NULL); 7467 if (ret == QLA_ERROR) 7468 continue; 7469 7470 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7471 state == DDB_DS_SESSION_FAILED) 7472 break; 7473 7474 schedule_timeout_uninterruptible(HZ / 10); 7475 } while (time_after(wtime, jiffies)); 7476 7477 exit_ddb_conn_open: 7478 if (ddb_entry) 7479 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7480 ddb_entry, ddb_entry_dma); 7481 return ret; 7482 } 7483 7484 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7485 struct dev_db_entry *fw_ddb_entry, 7486 uint16_t target_id) 7487 { 7488 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7489 struct list_head list_nt; 7490 uint16_t ddb_index; 7491 int ret = 0; 7492 7493 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7494 ql4_printk(KERN_WARNING, ha, 7495 "%s: A discovery already in progress!\n", __func__); 7496 return QLA_ERROR; 7497 } 7498 7499 INIT_LIST_HEAD(&list_nt); 7500 7501 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7502 7503 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7504 if (ret == QLA_ERROR) 7505 goto exit_login_st_clr_bit; 7506 7507 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7508 if (ret == QLA_ERROR) 7509 goto exit_login_st; 7510 7511 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7512 7513 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7514 list_del_init(&ddb_idx->list); 7515 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7516 vfree(ddb_idx); 7517 } 7518 7519 exit_login_st: 7520 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7521 ql4_printk(KERN_ERR, ha, 7522 "Unable to clear DDB index = 0x%x\n", ddb_index); 7523 } 7524 7525 clear_bit(ddb_index, ha->ddb_idx_map); 7526 7527 exit_login_st_clr_bit: 7528 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7529 return ret; 7530 } 7531 7532 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7533 struct dev_db_entry *fw_ddb_entry, 7534 uint16_t idx) 7535 { 7536 int ret = QLA_ERROR; 7537 7538 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7539 if (ret != QLA_SUCCESS) 7540 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7541 idx); 7542 else 7543 ret = -EPERM; 7544 7545 return ret; 7546 } 7547 7548 /** 7549 * qla4xxx_sysfs_ddb_login - Login to the specified target 7550 * @fnode_sess: pointer to session attrs of flash ddb entry 7551 * @fnode_conn: pointer to connection attrs of flash ddb entry 7552 * 7553 * This logs in to the specified target 7554 **/ 7555 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7556 struct iscsi_bus_flash_conn *fnode_conn) 7557 { 7558 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7559 struct scsi_qla_host *ha = to_qla_host(shost); 7560 struct dev_db_entry *fw_ddb_entry = NULL; 7561 dma_addr_t fw_ddb_entry_dma; 7562 uint32_t options = 0; 7563 int ret = 0; 7564 7565 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7566 ql4_printk(KERN_ERR, ha, 7567 "%s: Target info is not persistent\n", __func__); 7568 ret = -EIO; 7569 goto exit_ddb_login; 7570 } 7571 7572 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7573 &fw_ddb_entry_dma, GFP_KERNEL); 7574 if (!fw_ddb_entry) { 7575 DEBUG2(ql4_printk(KERN_ERR, ha, 7576 "%s: Unable to allocate dma buffer\n", 7577 __func__)); 7578 ret = -ENOMEM; 7579 goto exit_ddb_login; 7580 } 7581 7582 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7583 options |= IPV6_DEFAULT_DDB_ENTRY; 7584 7585 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7586 if (ret == QLA_ERROR) 7587 goto exit_ddb_login; 7588 7589 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7590 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7591 7592 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7593 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7594 fnode_sess->target_id); 7595 else 7596 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7597 fnode_sess->target_id); 7598 7599 if (ret > 0) 7600 ret = -EIO; 7601 7602 exit_ddb_login: 7603 if (fw_ddb_entry) 7604 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7605 fw_ddb_entry, fw_ddb_entry_dma); 7606 return ret; 7607 } 7608 7609 /** 7610 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7611 * @cls_sess: pointer to session to be logged out 7612 * 7613 * This performs session log out from the specified target 7614 **/ 7615 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7616 { 7617 struct iscsi_session *sess; 7618 struct ddb_entry *ddb_entry = NULL; 7619 struct scsi_qla_host *ha; 7620 struct dev_db_entry *fw_ddb_entry = NULL; 7621 dma_addr_t fw_ddb_entry_dma; 7622 unsigned long flags; 7623 unsigned long wtime; 7624 uint32_t ddb_state; 7625 int options; 7626 int ret = 0; 7627 7628 sess = cls_sess->dd_data; 7629 ddb_entry = sess->dd_data; 7630 ha = ddb_entry->ha; 7631 7632 if (ddb_entry->ddb_type != FLASH_DDB) { 7633 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7634 __func__); 7635 ret = -ENXIO; 7636 goto exit_ddb_logout; 7637 } 7638 7639 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7640 ql4_printk(KERN_ERR, ha, 7641 "%s: Logout from boot target entry is not permitted.\n", 7642 __func__); 7643 ret = -EPERM; 7644 goto exit_ddb_logout; 7645 } 7646 7647 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7648 &fw_ddb_entry_dma, GFP_KERNEL); 7649 if (!fw_ddb_entry) { 7650 ql4_printk(KERN_ERR, ha, 7651 "%s: Unable to allocate dma buffer\n", __func__); 7652 ret = -ENOMEM; 7653 goto exit_ddb_logout; 7654 } 7655 7656 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7657 goto ddb_logout_init; 7658 7659 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7660 fw_ddb_entry, fw_ddb_entry_dma, 7661 NULL, NULL, &ddb_state, NULL, 7662 NULL, NULL); 7663 if (ret == QLA_ERROR) 7664 goto ddb_logout_init; 7665 7666 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7667 goto ddb_logout_init; 7668 7669 /* wait until next relogin is triggered using DF_RELOGIN and 7670 * clear DF_RELOGIN to avoid invocation of further relogin 7671 */ 7672 wtime = jiffies + (HZ * RELOGIN_TOV); 7673 do { 7674 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7675 goto ddb_logout_init; 7676 7677 schedule_timeout_uninterruptible(HZ); 7678 } while ((time_after(wtime, jiffies))); 7679 7680 ddb_logout_init: 7681 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7682 atomic_set(&ddb_entry->relogin_timer, 0); 7683 7684 options = LOGOUT_OPTION_CLOSE_SESSION; 7685 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7686 7687 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7688 wtime = jiffies + (HZ * LOGOUT_TOV); 7689 do { 7690 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7691 fw_ddb_entry, fw_ddb_entry_dma, 7692 NULL, NULL, &ddb_state, NULL, 7693 NULL, NULL); 7694 if (ret == QLA_ERROR) 7695 goto ddb_logout_clr_sess; 7696 7697 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7698 (ddb_state == DDB_DS_SESSION_FAILED)) 7699 goto ddb_logout_clr_sess; 7700 7701 schedule_timeout_uninterruptible(HZ); 7702 } while ((time_after(wtime, jiffies))); 7703 7704 ddb_logout_clr_sess: 7705 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7706 /* 7707 * we have decremented the reference count of the driver 7708 * when we setup the session to have the driver unload 7709 * to be seamless without actually destroying the 7710 * session 7711 **/ 7712 try_module_get(qla4xxx_iscsi_transport.owner); 7713 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7714 7715 spin_lock_irqsave(&ha->hardware_lock, flags); 7716 qla4xxx_free_ddb(ha, ddb_entry); 7717 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7718 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7719 7720 iscsi_session_teardown(ddb_entry->sess); 7721 7722 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7723 ret = QLA_SUCCESS; 7724 7725 exit_ddb_logout: 7726 if (fw_ddb_entry) 7727 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7728 fw_ddb_entry, fw_ddb_entry_dma); 7729 return ret; 7730 } 7731 7732 /** 7733 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7734 * @fnode_sess: pointer to session attrs of flash ddb entry 7735 * @fnode_conn: pointer to connection attrs of flash ddb entry 7736 * 7737 * This performs log out from the specified target 7738 **/ 7739 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7740 struct iscsi_bus_flash_conn *fnode_conn) 7741 { 7742 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7743 struct scsi_qla_host *ha = to_qla_host(shost); 7744 struct ql4_tuple_ddb *flash_tddb = NULL; 7745 struct ql4_tuple_ddb *tmp_tddb = NULL; 7746 struct dev_db_entry *fw_ddb_entry = NULL; 7747 struct ddb_entry *ddb_entry = NULL; 7748 dma_addr_t fw_ddb_dma; 7749 uint32_t next_idx = 0; 7750 uint32_t state = 0, conn_err = 0; 7751 uint16_t conn_id = 0; 7752 int idx, index; 7753 int status, ret = 0; 7754 7755 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7756 &fw_ddb_dma); 7757 if (fw_ddb_entry == NULL) { 7758 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7759 ret = -ENOMEM; 7760 goto exit_ddb_logout; 7761 } 7762 7763 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7764 if (!flash_tddb) { 7765 ql4_printk(KERN_WARNING, ha, 7766 "%s:Memory Allocation failed.\n", __func__); 7767 ret = -ENOMEM; 7768 goto exit_ddb_logout; 7769 } 7770 7771 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7772 if (!tmp_tddb) { 7773 ql4_printk(KERN_WARNING, ha, 7774 "%s:Memory Allocation failed.\n", __func__); 7775 ret = -ENOMEM; 7776 goto exit_ddb_logout; 7777 } 7778 7779 if (!fnode_sess->targetname) { 7780 ql4_printk(KERN_ERR, ha, 7781 "%s:Cannot logout from SendTarget entry\n", 7782 __func__); 7783 ret = -EPERM; 7784 goto exit_ddb_logout; 7785 } 7786 7787 if (fnode_sess->is_boot_target) { 7788 ql4_printk(KERN_ERR, ha, 7789 "%s: Logout from boot target entry is not permitted.\n", 7790 __func__); 7791 ret = -EPERM; 7792 goto exit_ddb_logout; 7793 } 7794 7795 strscpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7796 sizeof(flash_tddb->iscsi_name)); 7797 7798 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7799 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7800 else 7801 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7802 7803 flash_tddb->tpgt = fnode_sess->tpgt; 7804 flash_tddb->port = fnode_conn->port; 7805 7806 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7807 7808 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7809 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7810 if (ddb_entry == NULL) 7811 continue; 7812 7813 if (ddb_entry->ddb_type != FLASH_DDB) 7814 continue; 7815 7816 index = ddb_entry->sess->target_id; 7817 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7818 fw_ddb_dma, NULL, &next_idx, 7819 &state, &conn_err, NULL, 7820 &conn_id); 7821 if (status == QLA_ERROR) { 7822 ret = -ENOMEM; 7823 break; 7824 } 7825 7826 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7827 7828 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7829 true); 7830 if (status == QLA_SUCCESS) { 7831 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7832 break; 7833 } 7834 } 7835 7836 if (idx == MAX_DDB_ENTRIES) 7837 ret = -ESRCH; 7838 7839 exit_ddb_logout: 7840 vfree(flash_tddb); 7841 vfree(tmp_tddb); 7842 if (fw_ddb_entry) 7843 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7844 7845 return ret; 7846 } 7847 7848 static int 7849 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7850 int param, char *buf) 7851 { 7852 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7853 struct scsi_qla_host *ha = to_qla_host(shost); 7854 struct iscsi_bus_flash_conn *fnode_conn; 7855 struct ql4_chap_table chap_tbl; 7856 struct device *dev; 7857 int parent_type; 7858 int rc = 0; 7859 7860 dev = iscsi_find_flashnode_conn(fnode_sess); 7861 if (!dev) 7862 return -EIO; 7863 7864 fnode_conn = iscsi_dev_to_flash_conn(dev); 7865 7866 switch (param) { 7867 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7868 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7869 break; 7870 case ISCSI_FLASHNODE_PORTAL_TYPE: 7871 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7872 break; 7873 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7874 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7875 break; 7876 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7877 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7878 break; 7879 case ISCSI_FLASHNODE_ENTRY_EN: 7880 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7881 break; 7882 case ISCSI_FLASHNODE_HDR_DGST_EN: 7883 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7884 break; 7885 case ISCSI_FLASHNODE_DATA_DGST_EN: 7886 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7887 break; 7888 case ISCSI_FLASHNODE_IMM_DATA_EN: 7889 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7890 break; 7891 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7892 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7893 break; 7894 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7895 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7896 break; 7897 case ISCSI_FLASHNODE_PDU_INORDER: 7898 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7899 break; 7900 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7901 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7902 break; 7903 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7904 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7905 break; 7906 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7907 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7908 break; 7909 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7910 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7911 break; 7912 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7913 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7914 break; 7915 case ISCSI_FLASHNODE_ERL: 7916 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7917 break; 7918 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7919 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7920 break; 7921 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7922 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7923 break; 7924 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7925 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7926 break; 7927 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7928 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7929 break; 7930 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7931 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7932 break; 7933 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7934 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7935 break; 7936 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7937 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7938 break; 7939 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7940 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7941 break; 7942 case ISCSI_FLASHNODE_FIRST_BURST: 7943 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7944 break; 7945 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7946 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7947 break; 7948 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7949 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7950 break; 7951 case ISCSI_FLASHNODE_MAX_R2T: 7952 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7953 break; 7954 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7955 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7956 break; 7957 case ISCSI_FLASHNODE_ISID: 7958 rc = sprintf(buf, "%pm\n", fnode_sess->isid); 7959 break; 7960 case ISCSI_FLASHNODE_TSID: 7961 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7962 break; 7963 case ISCSI_FLASHNODE_PORT: 7964 rc = sprintf(buf, "%d\n", fnode_conn->port); 7965 break; 7966 case ISCSI_FLASHNODE_MAX_BURST: 7967 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7968 break; 7969 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7970 rc = sprintf(buf, "%u\n", 7971 fnode_sess->default_taskmgmt_timeout); 7972 break; 7973 case ISCSI_FLASHNODE_IPADDR: 7974 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7975 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7976 else 7977 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7978 break; 7979 case ISCSI_FLASHNODE_ALIAS: 7980 if (fnode_sess->targetalias) 7981 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7982 else 7983 rc = sprintf(buf, "\n"); 7984 break; 7985 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7986 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7987 rc = sprintf(buf, "%pI6\n", 7988 fnode_conn->redirect_ipaddr); 7989 else 7990 rc = sprintf(buf, "%pI4\n", 7991 fnode_conn->redirect_ipaddr); 7992 break; 7993 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7994 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7995 break; 7996 case ISCSI_FLASHNODE_LOCAL_PORT: 7997 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 7998 break; 7999 case ISCSI_FLASHNODE_IPV4_TOS: 8000 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 8001 break; 8002 case ISCSI_FLASHNODE_IPV6_TC: 8003 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 8004 rc = sprintf(buf, "%u\n", 8005 fnode_conn->ipv6_traffic_class); 8006 else 8007 rc = sprintf(buf, "\n"); 8008 break; 8009 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8010 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 8011 break; 8012 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8013 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 8014 rc = sprintf(buf, "%pI6\n", 8015 fnode_conn->link_local_ipv6_addr); 8016 else 8017 rc = sprintf(buf, "\n"); 8018 break; 8019 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8020 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 8021 break; 8022 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 8023 if (fnode_sess->discovery_parent_type == DDB_ISNS) 8024 parent_type = ISCSI_DISC_PARENT_ISNS; 8025 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 8026 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8027 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 8028 parent_type = ISCSI_DISC_PARENT_SENDTGT; 8029 else 8030 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8031 8032 rc = sprintf(buf, "%s\n", 8033 iscsi_get_discovery_parent_name(parent_type)); 8034 break; 8035 case ISCSI_FLASHNODE_NAME: 8036 if (fnode_sess->targetname) 8037 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 8038 else 8039 rc = sprintf(buf, "\n"); 8040 break; 8041 case ISCSI_FLASHNODE_TPGT: 8042 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 8043 break; 8044 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8045 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 8046 break; 8047 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8048 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 8049 break; 8050 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8051 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8052 break; 8053 case ISCSI_FLASHNODE_USERNAME: 8054 if (fnode_sess->chap_auth_en) { 8055 qla4xxx_get_uni_chap_at_index(ha, 8056 chap_tbl.name, 8057 chap_tbl.secret, 8058 fnode_sess->chap_out_idx); 8059 rc = sprintf(buf, "%s\n", chap_tbl.name); 8060 } else { 8061 rc = sprintf(buf, "\n"); 8062 } 8063 break; 8064 case ISCSI_FLASHNODE_PASSWORD: 8065 if (fnode_sess->chap_auth_en) { 8066 qla4xxx_get_uni_chap_at_index(ha, 8067 chap_tbl.name, 8068 chap_tbl.secret, 8069 fnode_sess->chap_out_idx); 8070 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8071 } else { 8072 rc = sprintf(buf, "\n"); 8073 } 8074 break; 8075 case ISCSI_FLASHNODE_STATSN: 8076 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8077 break; 8078 case ISCSI_FLASHNODE_EXP_STATSN: 8079 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8080 break; 8081 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8082 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8083 break; 8084 default: 8085 rc = -ENOSYS; 8086 break; 8087 } 8088 8089 put_device(dev); 8090 return rc; 8091 } 8092 8093 /** 8094 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8095 * @fnode_sess: pointer to session attrs of flash ddb entry 8096 * @fnode_conn: pointer to connection attrs of flash ddb entry 8097 * @data: Parameters and their values to update 8098 * @len: len of data 8099 * 8100 * This sets the parameter of flash ddb entry and writes them to flash 8101 **/ 8102 static int 8103 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8104 struct iscsi_bus_flash_conn *fnode_conn, 8105 void *data, int len) 8106 { 8107 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8108 struct scsi_qla_host *ha = to_qla_host(shost); 8109 struct iscsi_flashnode_param_info *fnode_param; 8110 struct ql4_chap_table chap_tbl; 8111 struct nlattr *attr; 8112 uint16_t chap_out_idx = INVALID_ENTRY; 8113 int rc = QLA_ERROR; 8114 uint32_t rem = len; 8115 8116 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8117 nla_for_each_attr(attr, data, len, rem) { 8118 if (nla_len(attr) < sizeof(*fnode_param)) { 8119 rc = -EINVAL; 8120 goto exit_set_param; 8121 } 8122 8123 fnode_param = nla_data(attr); 8124 8125 switch (fnode_param->param) { 8126 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8127 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8128 break; 8129 case ISCSI_FLASHNODE_PORTAL_TYPE: 8130 memcpy(fnode_sess->portal_type, fnode_param->value, 8131 strlen(fnode_sess->portal_type)); 8132 break; 8133 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8134 fnode_sess->auto_snd_tgt_disable = 8135 fnode_param->value[0]; 8136 break; 8137 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8138 fnode_sess->discovery_sess = fnode_param->value[0]; 8139 break; 8140 case ISCSI_FLASHNODE_ENTRY_EN: 8141 fnode_sess->entry_state = fnode_param->value[0]; 8142 break; 8143 case ISCSI_FLASHNODE_HDR_DGST_EN: 8144 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8145 break; 8146 case ISCSI_FLASHNODE_DATA_DGST_EN: 8147 fnode_conn->datadgst_en = fnode_param->value[0]; 8148 break; 8149 case ISCSI_FLASHNODE_IMM_DATA_EN: 8150 fnode_sess->imm_data_en = fnode_param->value[0]; 8151 break; 8152 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8153 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8154 break; 8155 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8156 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8157 break; 8158 case ISCSI_FLASHNODE_PDU_INORDER: 8159 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8160 break; 8161 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8162 fnode_sess->chap_auth_en = fnode_param->value[0]; 8163 /* Invalidate chap index if chap auth is disabled */ 8164 if (!fnode_sess->chap_auth_en) 8165 fnode_sess->chap_out_idx = INVALID_ENTRY; 8166 8167 break; 8168 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8169 fnode_conn->snack_req_en = fnode_param->value[0]; 8170 break; 8171 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8172 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8173 break; 8174 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8175 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8176 break; 8177 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8178 fnode_sess->discovery_auth_optional = 8179 fnode_param->value[0]; 8180 break; 8181 case ISCSI_FLASHNODE_ERL: 8182 fnode_sess->erl = fnode_param->value[0]; 8183 break; 8184 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8185 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8186 break; 8187 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8188 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8189 break; 8190 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8191 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8192 break; 8193 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8194 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8195 break; 8196 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8197 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8198 break; 8199 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8200 fnode_conn->fragment_disable = fnode_param->value[0]; 8201 break; 8202 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8203 fnode_conn->max_recv_dlength = 8204 *(unsigned *)fnode_param->value; 8205 break; 8206 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8207 fnode_conn->max_xmit_dlength = 8208 *(unsigned *)fnode_param->value; 8209 break; 8210 case ISCSI_FLASHNODE_FIRST_BURST: 8211 fnode_sess->first_burst = 8212 *(unsigned *)fnode_param->value; 8213 break; 8214 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8215 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8216 break; 8217 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8218 fnode_sess->time2retain = 8219 *(uint16_t *)fnode_param->value; 8220 break; 8221 case ISCSI_FLASHNODE_MAX_R2T: 8222 fnode_sess->max_r2t = 8223 *(uint16_t *)fnode_param->value; 8224 break; 8225 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8226 fnode_conn->keepalive_timeout = 8227 *(uint16_t *)fnode_param->value; 8228 break; 8229 case ISCSI_FLASHNODE_ISID: 8230 memcpy(fnode_sess->isid, fnode_param->value, 8231 sizeof(fnode_sess->isid)); 8232 break; 8233 case ISCSI_FLASHNODE_TSID: 8234 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8235 break; 8236 case ISCSI_FLASHNODE_PORT: 8237 fnode_conn->port = *(uint16_t *)fnode_param->value; 8238 break; 8239 case ISCSI_FLASHNODE_MAX_BURST: 8240 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8241 break; 8242 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8243 fnode_sess->default_taskmgmt_timeout = 8244 *(uint16_t *)fnode_param->value; 8245 break; 8246 case ISCSI_FLASHNODE_IPADDR: 8247 memcpy(fnode_conn->ipaddress, fnode_param->value, 8248 IPv6_ADDR_LEN); 8249 break; 8250 case ISCSI_FLASHNODE_ALIAS: 8251 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8252 (char *)fnode_param->value); 8253 break; 8254 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8255 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8256 IPv6_ADDR_LEN); 8257 break; 8258 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8259 fnode_conn->max_segment_size = 8260 *(unsigned *)fnode_param->value; 8261 break; 8262 case ISCSI_FLASHNODE_LOCAL_PORT: 8263 fnode_conn->local_port = 8264 *(uint16_t *)fnode_param->value; 8265 break; 8266 case ISCSI_FLASHNODE_IPV4_TOS: 8267 fnode_conn->ipv4_tos = fnode_param->value[0]; 8268 break; 8269 case ISCSI_FLASHNODE_IPV6_TC: 8270 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8271 break; 8272 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8273 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8274 break; 8275 case ISCSI_FLASHNODE_NAME: 8276 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8277 (char *)fnode_param->value); 8278 break; 8279 case ISCSI_FLASHNODE_TPGT: 8280 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8281 break; 8282 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8283 memcpy(fnode_conn->link_local_ipv6_addr, 8284 fnode_param->value, IPv6_ADDR_LEN); 8285 break; 8286 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8287 fnode_sess->discovery_parent_idx = 8288 *(uint16_t *)fnode_param->value; 8289 break; 8290 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8291 fnode_conn->tcp_xmit_wsf = 8292 *(uint8_t *)fnode_param->value; 8293 break; 8294 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8295 fnode_conn->tcp_recv_wsf = 8296 *(uint8_t *)fnode_param->value; 8297 break; 8298 case ISCSI_FLASHNODE_STATSN: 8299 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8300 break; 8301 case ISCSI_FLASHNODE_EXP_STATSN: 8302 fnode_conn->exp_statsn = 8303 *(uint32_t *)fnode_param->value; 8304 break; 8305 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8306 chap_out_idx = *(uint16_t *)fnode_param->value; 8307 if (!qla4xxx_get_uni_chap_at_index(ha, 8308 chap_tbl.name, 8309 chap_tbl.secret, 8310 chap_out_idx)) { 8311 fnode_sess->chap_out_idx = chap_out_idx; 8312 /* Enable chap auth if chap index is valid */ 8313 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8314 } 8315 break; 8316 default: 8317 ql4_printk(KERN_ERR, ha, 8318 "%s: No such sysfs attribute\n", __func__); 8319 rc = -ENOSYS; 8320 goto exit_set_param; 8321 } 8322 } 8323 8324 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8325 8326 exit_set_param: 8327 return rc; 8328 } 8329 8330 /** 8331 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8332 * @fnode_sess: pointer to session attrs of flash ddb entry 8333 * 8334 * This invalidates the flash ddb entry at the given index 8335 **/ 8336 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8337 { 8338 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8339 struct scsi_qla_host *ha = to_qla_host(shost); 8340 uint32_t dev_db_start_offset; 8341 uint32_t dev_db_end_offset; 8342 struct dev_db_entry *fw_ddb_entry = NULL; 8343 dma_addr_t fw_ddb_entry_dma; 8344 uint16_t *ddb_cookie = NULL; 8345 size_t ddb_size = 0; 8346 void *pddb = NULL; 8347 int target_id; 8348 int rc = 0; 8349 8350 if (fnode_sess->is_boot_target) { 8351 rc = -EPERM; 8352 DEBUG2(ql4_printk(KERN_ERR, ha, 8353 "%s: Deletion of boot target entry is not permitted.\n", 8354 __func__)); 8355 goto exit_ddb_del; 8356 } 8357 8358 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8359 goto sysfs_ddb_del; 8360 8361 if (is_qla40XX(ha)) { 8362 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8363 dev_db_end_offset = FLASH_OFFSET_DB_END; 8364 dev_db_start_offset += (fnode_sess->target_id * 8365 sizeof(*fw_ddb_entry)); 8366 ddb_size = sizeof(*fw_ddb_entry); 8367 } else { 8368 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8369 (ha->hw.flt_region_ddb << 2); 8370 /* flt_ddb_size is DDB table size for both ports 8371 * so divide it by 2 to calculate the offset for second port 8372 */ 8373 if (ha->port_num == 1) 8374 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8375 8376 dev_db_end_offset = dev_db_start_offset + 8377 (ha->hw.flt_ddb_size / 2); 8378 8379 dev_db_start_offset += (fnode_sess->target_id * 8380 sizeof(*fw_ddb_entry)); 8381 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8382 8383 ddb_size = sizeof(*ddb_cookie); 8384 } 8385 8386 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8387 __func__, dev_db_start_offset, dev_db_end_offset)); 8388 8389 if (dev_db_start_offset > dev_db_end_offset) { 8390 rc = -EIO; 8391 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8392 __func__, fnode_sess->target_id)); 8393 goto exit_ddb_del; 8394 } 8395 8396 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8397 &fw_ddb_entry_dma, GFP_KERNEL); 8398 if (!pddb) { 8399 rc = -ENOMEM; 8400 DEBUG2(ql4_printk(KERN_ERR, ha, 8401 "%s: Unable to allocate dma buffer\n", 8402 __func__)); 8403 goto exit_ddb_del; 8404 } 8405 8406 if (is_qla40XX(ha)) { 8407 fw_ddb_entry = pddb; 8408 memset(fw_ddb_entry, 0, ddb_size); 8409 ddb_cookie = &fw_ddb_entry->cookie; 8410 } else { 8411 ddb_cookie = pddb; 8412 } 8413 8414 /* invalidate the cookie */ 8415 *ddb_cookie = 0xFFEE; 8416 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8417 ddb_size, FLASH_OPT_RMW_COMMIT); 8418 8419 sysfs_ddb_del: 8420 target_id = fnode_sess->target_id; 8421 iscsi_destroy_flashnode_sess(fnode_sess); 8422 ql4_printk(KERN_INFO, ha, 8423 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8424 __func__, target_id, ha->host_no); 8425 exit_ddb_del: 8426 if (pddb) 8427 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8428 fw_ddb_entry_dma); 8429 return rc; 8430 } 8431 8432 /** 8433 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8434 * @ha: pointer to adapter structure 8435 * 8436 * Export the firmware DDB for all send targets and normal targets to sysfs. 8437 **/ 8438 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8439 { 8440 struct dev_db_entry *fw_ddb_entry = NULL; 8441 dma_addr_t fw_ddb_entry_dma; 8442 uint16_t max_ddbs; 8443 uint16_t idx = 0; 8444 int ret = QLA_SUCCESS; 8445 8446 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8447 sizeof(*fw_ddb_entry), 8448 &fw_ddb_entry_dma, GFP_KERNEL); 8449 if (!fw_ddb_entry) { 8450 DEBUG2(ql4_printk(KERN_ERR, ha, 8451 "%s: Unable to allocate dma buffer\n", 8452 __func__)); 8453 return -ENOMEM; 8454 } 8455 8456 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8457 MAX_DEV_DB_ENTRIES; 8458 8459 for (idx = 0; idx < max_ddbs; idx++) { 8460 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8461 idx)) 8462 continue; 8463 8464 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8465 if (ret) { 8466 ret = -EIO; 8467 break; 8468 } 8469 } 8470 8471 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8472 fw_ddb_entry_dma); 8473 8474 return ret; 8475 } 8476 8477 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8478 { 8479 iscsi_destroy_all_flashnode(ha->host); 8480 } 8481 8482 /** 8483 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8484 * @ha: pointer to adapter structure 8485 * @is_reset: Is this init path or reset path 8486 * 8487 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8488 * using connection open, then create the list of normal targets (nt) 8489 * from firmware DDBs. Based on the list of nt setup session and connection 8490 * objects. 8491 **/ 8492 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8493 { 8494 uint16_t tmo = 0; 8495 struct list_head list_st, list_nt; 8496 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8497 unsigned long wtime; 8498 8499 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8500 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8501 ha->is_reset = is_reset; 8502 return; 8503 } 8504 8505 INIT_LIST_HEAD(&list_st); 8506 INIT_LIST_HEAD(&list_nt); 8507 8508 qla4xxx_build_st_list(ha, &list_st); 8509 8510 /* Before issuing conn open mbox, ensure all IPs states are configured 8511 * Note, conn open fails if IPs are not configured 8512 */ 8513 qla4xxx_wait_for_ip_configuration(ha); 8514 8515 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8516 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8517 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8518 } 8519 8520 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8521 tmo = ((ha->def_timeout > LOGIN_TOV) && 8522 (ha->def_timeout < LOGIN_TOV * 10) ? 8523 ha->def_timeout : LOGIN_TOV); 8524 8525 DEBUG2(ql4_printk(KERN_INFO, ha, 8526 "Default time to wait for build ddb %d\n", tmo)); 8527 8528 wtime = jiffies + (HZ * tmo); 8529 do { 8530 if (list_empty(&list_st)) 8531 break; 8532 8533 qla4xxx_remove_failed_ddb(ha, &list_st); 8534 schedule_timeout_uninterruptible(HZ / 10); 8535 } while (time_after(wtime, jiffies)); 8536 8537 8538 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8539 8540 qla4xxx_free_ddb_list(&list_st); 8541 qla4xxx_free_ddb_list(&list_nt); 8542 8543 qla4xxx_free_ddb_index(ha); 8544 } 8545 8546 /** 8547 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8548 * response. 8549 * @ha: pointer to adapter structure 8550 * 8551 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8552 * set in DDB and we will wait for login response of boot targets during 8553 * probe. 8554 **/ 8555 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8556 { 8557 struct ddb_entry *ddb_entry; 8558 struct dev_db_entry *fw_ddb_entry = NULL; 8559 dma_addr_t fw_ddb_entry_dma; 8560 unsigned long wtime; 8561 uint32_t ddb_state; 8562 int max_ddbs, idx, ret; 8563 8564 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8565 MAX_DEV_DB_ENTRIES; 8566 8567 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8568 &fw_ddb_entry_dma, GFP_KERNEL); 8569 if (!fw_ddb_entry) { 8570 ql4_printk(KERN_ERR, ha, 8571 "%s: Unable to allocate dma buffer\n", __func__); 8572 goto exit_login_resp; 8573 } 8574 8575 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8576 8577 for (idx = 0; idx < max_ddbs; idx++) { 8578 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8579 if (ddb_entry == NULL) 8580 continue; 8581 8582 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8583 DEBUG2(ql4_printk(KERN_INFO, ha, 8584 "%s: DDB index [%d]\n", __func__, 8585 ddb_entry->fw_ddb_index)); 8586 do { 8587 ret = qla4xxx_get_fwddb_entry(ha, 8588 ddb_entry->fw_ddb_index, 8589 fw_ddb_entry, fw_ddb_entry_dma, 8590 NULL, NULL, &ddb_state, NULL, 8591 NULL, NULL); 8592 if (ret == QLA_ERROR) 8593 goto exit_login_resp; 8594 8595 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8596 (ddb_state == DDB_DS_SESSION_FAILED)) 8597 break; 8598 8599 schedule_timeout_uninterruptible(HZ); 8600 8601 } while ((time_after(wtime, jiffies))); 8602 8603 if (!time_after(wtime, jiffies)) { 8604 DEBUG2(ql4_printk(KERN_INFO, ha, 8605 "%s: Login response wait timer expired\n", 8606 __func__)); 8607 goto exit_login_resp; 8608 } 8609 } 8610 } 8611 8612 exit_login_resp: 8613 if (fw_ddb_entry) 8614 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8615 fw_ddb_entry, fw_ddb_entry_dma); 8616 } 8617 8618 /** 8619 * qla4xxx_probe_adapter - callback function to probe HBA 8620 * @pdev: pointer to pci_dev structure 8621 * @ent: pointer to pci_device entry 8622 * 8623 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8624 * It returns zero if successful. It also initializes all data necessary for 8625 * the driver. 8626 **/ 8627 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8628 const struct pci_device_id *ent) 8629 { 8630 int ret = -ENODEV, status; 8631 struct Scsi_Host *host; 8632 struct scsi_qla_host *ha; 8633 uint8_t init_retry_count = 0; 8634 char buf[34]; 8635 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8636 uint32_t dev_state; 8637 8638 if (pci_enable_device(pdev)) 8639 return -1; 8640 8641 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8642 if (host == NULL) { 8643 printk(KERN_WARNING 8644 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8645 goto probe_disable_device; 8646 } 8647 8648 /* Clear our data area */ 8649 ha = to_qla_host(host); 8650 memset(ha, 0, sizeof(*ha)); 8651 8652 /* Save the information from PCI BIOS. */ 8653 ha->pdev = pdev; 8654 ha->host = host; 8655 ha->host_no = host->host_no; 8656 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8657 8658 /* Setup Runtime configurable options */ 8659 if (is_qla8022(ha)) { 8660 ha->isp_ops = &qla4_82xx_isp_ops; 8661 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8662 ha->qdr_sn_window = -1; 8663 ha->ddr_mn_window = -1; 8664 ha->curr_window = 255; 8665 nx_legacy_intr = &legacy_intr[ha->func_num]; 8666 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8667 ha->nx_legacy_intr.tgt_status_reg = 8668 nx_legacy_intr->tgt_status_reg; 8669 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8670 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8671 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8672 ha->isp_ops = &qla4_83xx_isp_ops; 8673 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8674 } else { 8675 ha->isp_ops = &qla4xxx_isp_ops; 8676 } 8677 8678 if (is_qla80XX(ha)) { 8679 rwlock_init(&ha->hw_lock); 8680 ha->pf_bit = ha->func_num << 16; 8681 /* Set EEH reset type to fundamental if required by hba */ 8682 pdev->needs_freset = 1; 8683 } 8684 8685 /* Configure PCI I/O space. */ 8686 ret = ha->isp_ops->iospace_config(ha); 8687 if (ret) 8688 goto probe_failed_ioconfig; 8689 8690 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8691 pdev->device, pdev->irq, ha->reg); 8692 8693 qla4xxx_config_dma_addressing(ha); 8694 8695 /* Initialize lists and spinlocks. */ 8696 INIT_LIST_HEAD(&ha->free_srb_q); 8697 8698 mutex_init(&ha->mbox_sem); 8699 mutex_init(&ha->chap_sem); 8700 init_completion(&ha->mbx_intr_comp); 8701 init_completion(&ha->disable_acb_comp); 8702 init_completion(&ha->idc_comp); 8703 init_completion(&ha->link_up_comp); 8704 8705 spin_lock_init(&ha->hardware_lock); 8706 spin_lock_init(&ha->work_lock); 8707 8708 /* Initialize work list */ 8709 INIT_LIST_HEAD(&ha->work_list); 8710 8711 /* Allocate dma buffers */ 8712 if (qla4xxx_mem_alloc(ha)) { 8713 ql4_printk(KERN_WARNING, ha, 8714 "[ERROR] Failed to allocate memory for adapter\n"); 8715 8716 ret = -ENOMEM; 8717 goto probe_failed; 8718 } 8719 8720 host->cmd_per_lun = 3; 8721 host->max_channel = 0; 8722 host->max_lun = MAX_LUNS - 1; 8723 host->max_id = MAX_TARGETS; 8724 host->max_cmd_len = IOCB_MAX_CDB_LEN; 8725 host->can_queue = MAX_SRBS ; 8726 host->transportt = qla4xxx_scsi_transport; 8727 8728 pci_set_drvdata(pdev, ha); 8729 8730 ret = scsi_add_host(host, &pdev->dev); 8731 if (ret) 8732 goto probe_failed; 8733 8734 if (is_qla80XX(ha)) 8735 qla4_8xxx_get_flash_info(ha); 8736 8737 if (is_qla8032(ha) || is_qla8042(ha)) { 8738 qla4_83xx_read_reset_template(ha); 8739 /* 8740 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8741 * If DONRESET_BIT0 is set, drivers should not set dev_state 8742 * to NEED_RESET. But if NEED_RESET is set, drivers should 8743 * should honor the reset. 8744 */ 8745 if (ql4xdontresethba == 1) 8746 qla4_83xx_set_idc_dontreset(ha); 8747 } 8748 8749 /* 8750 * Initialize the Host adapter request/response queues and 8751 * firmware 8752 * NOTE: interrupts enabled upon successful completion 8753 */ 8754 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8755 8756 /* Dont retry adapter initialization if IRQ allocation failed */ 8757 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8758 goto skip_retry_init; 8759 8760 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8761 init_retry_count++ < MAX_INIT_RETRIES) { 8762 8763 if (is_qla80XX(ha)) { 8764 ha->isp_ops->idc_lock(ha); 8765 dev_state = qla4_8xxx_rd_direct(ha, 8766 QLA8XXX_CRB_DEV_STATE); 8767 ha->isp_ops->idc_unlock(ha); 8768 if (dev_state == QLA8XXX_DEV_FAILED) { 8769 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8770 "initialize adapter. H/W is in failed state\n", 8771 __func__); 8772 break; 8773 } 8774 } 8775 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8776 "(%d)\n", __func__, init_retry_count)); 8777 8778 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8779 continue; 8780 8781 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8782 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8783 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8784 goto skip_retry_init; 8785 } 8786 } 8787 8788 skip_retry_init: 8789 if (!test_bit(AF_ONLINE, &ha->flags)) { 8790 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8791 8792 if ((is_qla8022(ha) && ql4xdontresethba) || 8793 ((is_qla8032(ha) || is_qla8042(ha)) && 8794 qla4_83xx_idc_dontreset(ha))) { 8795 /* Put the device in failed state. */ 8796 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8797 ha->isp_ops->idc_lock(ha); 8798 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8799 QLA8XXX_DEV_FAILED); 8800 ha->isp_ops->idc_unlock(ha); 8801 } 8802 ret = -ENODEV; 8803 goto remove_host; 8804 } 8805 8806 /* Startup the kernel thread for this host adapter. */ 8807 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8808 "qla4xxx_dpc\n", __func__)); 8809 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8810 ha->dpc_thread = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, buf); 8811 if (!ha->dpc_thread) { 8812 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8813 ret = -ENODEV; 8814 goto remove_host; 8815 } 8816 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8817 8818 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8819 ha->host_no); 8820 if (!ha->task_wq) { 8821 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8822 ret = -ENODEV; 8823 goto remove_host; 8824 } 8825 8826 /* 8827 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8828 * (which is called indirectly by qla4xxx_initialize_adapter), 8829 * so that irqs will be registered after crbinit but before 8830 * mbx_intr_enable. 8831 */ 8832 if (is_qla40XX(ha)) { 8833 ret = qla4xxx_request_irqs(ha); 8834 if (ret) { 8835 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8836 "interrupt %d already in use.\n", pdev->irq); 8837 goto remove_host; 8838 } 8839 } 8840 8841 pci_save_state(ha->pdev); 8842 ha->isp_ops->enable_intrs(ha); 8843 8844 /* Start timer thread. */ 8845 qla4xxx_start_timer(ha, 1); 8846 8847 set_bit(AF_INIT_DONE, &ha->flags); 8848 8849 qla4_8xxx_alloc_sysfs_attr(ha); 8850 8851 printk(KERN_INFO 8852 " QLogic iSCSI HBA Driver version: %s\n" 8853 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8854 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8855 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8856 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8857 8858 /* Set the driver version */ 8859 if (is_qla80XX(ha)) 8860 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8861 8862 if (qla4xxx_setup_boot_info(ha)) 8863 ql4_printk(KERN_ERR, ha, 8864 "%s: No iSCSI boot target configured\n", __func__); 8865 8866 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags); 8867 /* Perform the build ddb list and login to each */ 8868 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8869 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8870 qla4xxx_wait_login_resp_boot_tgt(ha); 8871 8872 qla4xxx_create_chap_list(ha); 8873 8874 qla4xxx_create_ifaces(ha); 8875 return 0; 8876 8877 remove_host: 8878 scsi_remove_host(ha->host); 8879 8880 probe_failed: 8881 qla4xxx_free_adapter(ha); 8882 8883 probe_failed_ioconfig: 8884 scsi_host_put(ha->host); 8885 8886 probe_disable_device: 8887 pci_disable_device(pdev); 8888 8889 return ret; 8890 } 8891 8892 /** 8893 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8894 * @ha: pointer to adapter structure 8895 * 8896 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8897 * so that the other port will not re-initialize while in the process of 8898 * removing the ha due to driver unload or hba hotplug. 8899 **/ 8900 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8901 { 8902 struct scsi_qla_host *other_ha = NULL; 8903 struct pci_dev *other_pdev = NULL; 8904 int fn = ISP4XXX_PCI_FN_2; 8905 8906 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8907 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8908 fn = ISP4XXX_PCI_FN_1; 8909 8910 other_pdev = 8911 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8912 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8913 fn)); 8914 8915 /* Get other_ha if other_pdev is valid and state is enable*/ 8916 if (other_pdev) { 8917 if (atomic_read(&other_pdev->enable_cnt)) { 8918 other_ha = pci_get_drvdata(other_pdev); 8919 if (other_ha) { 8920 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8921 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8922 "Prevent %s reinit\n", __func__, 8923 dev_name(&other_ha->pdev->dev))); 8924 } 8925 } 8926 pci_dev_put(other_pdev); 8927 } 8928 } 8929 8930 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8931 struct ddb_entry *ddb_entry) 8932 { 8933 struct dev_db_entry *fw_ddb_entry = NULL; 8934 dma_addr_t fw_ddb_entry_dma; 8935 unsigned long wtime; 8936 uint32_t ddb_state; 8937 int options; 8938 int status; 8939 8940 options = LOGOUT_OPTION_CLOSE_SESSION; 8941 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8942 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8943 goto clear_ddb; 8944 } 8945 8946 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8947 &fw_ddb_entry_dma, GFP_KERNEL); 8948 if (!fw_ddb_entry) { 8949 ql4_printk(KERN_ERR, ha, 8950 "%s: Unable to allocate dma buffer\n", __func__); 8951 goto clear_ddb; 8952 } 8953 8954 wtime = jiffies + (HZ * LOGOUT_TOV); 8955 do { 8956 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8957 fw_ddb_entry, fw_ddb_entry_dma, 8958 NULL, NULL, &ddb_state, NULL, 8959 NULL, NULL); 8960 if (status == QLA_ERROR) 8961 goto free_ddb; 8962 8963 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8964 (ddb_state == DDB_DS_SESSION_FAILED)) 8965 goto free_ddb; 8966 8967 schedule_timeout_uninterruptible(HZ); 8968 } while ((time_after(wtime, jiffies))); 8969 8970 free_ddb: 8971 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8972 fw_ddb_entry, fw_ddb_entry_dma); 8973 clear_ddb: 8974 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8975 } 8976 8977 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8978 { 8979 struct ddb_entry *ddb_entry; 8980 int idx; 8981 8982 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8983 8984 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8985 if ((ddb_entry != NULL) && 8986 (ddb_entry->ddb_type == FLASH_DDB)) { 8987 8988 qla4xxx_destroy_ddb(ha, ddb_entry); 8989 /* 8990 * we have decremented the reference count of the driver 8991 * when we setup the session to have the driver unload 8992 * to be seamless without actually destroying the 8993 * session 8994 **/ 8995 try_module_get(qla4xxx_iscsi_transport.owner); 8996 iscsi_destroy_endpoint(ddb_entry->conn->ep); 8997 qla4xxx_free_ddb(ha, ddb_entry); 8998 iscsi_session_teardown(ddb_entry->sess); 8999 } 9000 } 9001 } 9002 /** 9003 * qla4xxx_remove_adapter - callback function to remove adapter. 9004 * @pdev: PCI device pointer 9005 **/ 9006 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 9007 { 9008 struct scsi_qla_host *ha; 9009 9010 /* 9011 * If the PCI device is disabled then it means probe_adapter had 9012 * failed and resources already cleaned up on probe_adapter exit. 9013 */ 9014 if (!pci_is_enabled(pdev)) 9015 return; 9016 9017 ha = pci_get_drvdata(pdev); 9018 9019 if (is_qla40XX(ha)) 9020 qla4xxx_prevent_other_port_reinit(ha); 9021 9022 /* destroy iface from sysfs */ 9023 qla4xxx_destroy_ifaces(ha); 9024 9025 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 9026 iscsi_boot_destroy_kset(ha->boot_kset); 9027 9028 qla4xxx_destroy_fw_ddb_session(ha); 9029 qla4_8xxx_free_sysfs_attr(ha); 9030 9031 qla4xxx_sysfs_ddb_remove(ha); 9032 scsi_remove_host(ha->host); 9033 9034 qla4xxx_free_adapter(ha); 9035 9036 scsi_host_put(ha->host); 9037 9038 pci_disable_device(pdev); 9039 } 9040 9041 /** 9042 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9043 * @ha: HA context 9044 */ 9045 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9046 { 9047 /* Update our PCI device dma_mask for full 64 bit mask */ 9048 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) { 9049 dev_dbg(&ha->pdev->dev, 9050 "Failed to set 64 bit PCI consistent mask; " 9051 "using 32 bit.\n"); 9052 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32)); 9053 } 9054 } 9055 9056 static int qla4xxx_sdev_init(struct scsi_device *sdev) 9057 { 9058 struct iscsi_cls_session *cls_sess; 9059 struct iscsi_session *sess; 9060 struct ddb_entry *ddb; 9061 int queue_depth = QL4_DEF_QDEPTH; 9062 9063 cls_sess = starget_to_session(sdev->sdev_target); 9064 sess = cls_sess->dd_data; 9065 ddb = sess->dd_data; 9066 9067 sdev->hostdata = ddb; 9068 9069 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9070 queue_depth = ql4xmaxqdepth; 9071 9072 scsi_change_queue_depth(sdev, queue_depth); 9073 return 0; 9074 } 9075 9076 /** 9077 * qla4xxx_del_from_active_array - returns an active srb 9078 * @ha: Pointer to host adapter structure. 9079 * @index: index into the active_array 9080 * 9081 * This routine removes and returns the srb at the specified index 9082 **/ 9083 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9084 uint32_t index) 9085 { 9086 struct srb *srb = NULL; 9087 struct scsi_cmnd *cmd = NULL; 9088 9089 cmd = scsi_host_find_tag(ha->host, index); 9090 if (!cmd) 9091 return srb; 9092 9093 srb = qla4xxx_cmd_priv(cmd)->srb; 9094 if (!srb) 9095 return srb; 9096 9097 /* update counters */ 9098 if (srb->flags & SRB_DMA_VALID) { 9099 ha->iocb_cnt -= srb->iocb_cnt; 9100 if (srb->cmd) 9101 srb->cmd->host_scribble = 9102 (unsigned char *)(unsigned long) MAX_SRBS; 9103 } 9104 return srb; 9105 } 9106 9107 /** 9108 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9109 * @ha: Pointer to host adapter structure. 9110 * @cmd: Scsi Command to wait on. 9111 * 9112 * This routine waits for the command to be returned by the Firmware 9113 * for some max time. 9114 **/ 9115 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9116 struct scsi_cmnd *cmd) 9117 { 9118 int done = 0; 9119 struct srb *rp; 9120 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9121 int ret = SUCCESS; 9122 9123 /* Dont wait on command if PCI error is being handled 9124 * by PCI AER driver 9125 */ 9126 if (unlikely(pci_channel_offline(ha->pdev)) || 9127 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9128 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9129 ha->host_no, __func__); 9130 return ret; 9131 } 9132 9133 do { 9134 /* Checking to see if its returned to OS */ 9135 rp = qla4xxx_cmd_priv(cmd)->srb; 9136 if (rp == NULL) { 9137 done++; 9138 break; 9139 } 9140 9141 msleep(2000); 9142 } while (max_wait_time--); 9143 9144 return done; 9145 } 9146 9147 /** 9148 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9149 * @ha: Pointer to host adapter structure 9150 **/ 9151 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9152 { 9153 unsigned long wait_online; 9154 9155 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9156 while (time_before(jiffies, wait_online)) { 9157 9158 if (adapter_up(ha)) 9159 return QLA_SUCCESS; 9160 9161 msleep(2000); 9162 } 9163 9164 return QLA_ERROR; 9165 } 9166 9167 /** 9168 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9169 * @ha: pointer to HBA 9170 * @stgt: pointer to SCSI target 9171 * @sdev: pointer to SCSI device 9172 * 9173 * This function waits for all outstanding commands to a lun to complete. It 9174 * returns 0 if all pending commands are returned and 1 otherwise. 9175 **/ 9176 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9177 struct scsi_target *stgt, 9178 struct scsi_device *sdev) 9179 { 9180 int cnt; 9181 int status = 0; 9182 struct scsi_cmnd *cmd; 9183 9184 /* 9185 * Waiting for all commands for the designated target or dev 9186 * in the active array 9187 */ 9188 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9189 cmd = scsi_host_find_tag(ha->host, cnt); 9190 if (cmd && stgt == scsi_target(cmd->device) && 9191 (!sdev || sdev == cmd->device)) { 9192 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9193 status++; 9194 break; 9195 } 9196 } 9197 } 9198 return status; 9199 } 9200 9201 /** 9202 * qla4xxx_eh_abort - callback for abort task. 9203 * @cmd: Pointer to Linux's SCSI command structure 9204 * 9205 * This routine is called by the Linux OS to abort the specified 9206 * command. 9207 **/ 9208 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9209 { 9210 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9211 unsigned int id = cmd->device->id; 9212 uint64_t lun = cmd->device->lun; 9213 unsigned long flags; 9214 struct srb *srb = NULL; 9215 int ret = SUCCESS; 9216 int wait = 0; 9217 int rval; 9218 9219 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n", 9220 ha->host_no, id, lun, cmd, cmd->cmnd[0]); 9221 9222 rval = qla4xxx_isp_check_reg(ha); 9223 if (rval != QLA_SUCCESS) { 9224 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9225 return FAILED; 9226 } 9227 9228 spin_lock_irqsave(&ha->hardware_lock, flags); 9229 srb = qla4xxx_cmd_priv(cmd)->srb; 9230 if (!srb) { 9231 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9232 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n", 9233 ha->host_no, id, lun); 9234 return SUCCESS; 9235 } 9236 kref_get(&srb->srb_ref); 9237 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9238 9239 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9240 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n", 9241 ha->host_no, id, lun)); 9242 ret = FAILED; 9243 } else { 9244 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n", 9245 ha->host_no, id, lun)); 9246 wait = 1; 9247 } 9248 9249 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9250 9251 /* Wait for command to complete */ 9252 if (wait) { 9253 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9254 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n", 9255 ha->host_no, id, lun)); 9256 ret = FAILED; 9257 } 9258 } 9259 9260 ql4_printk(KERN_INFO, ha, 9261 "scsi%ld:%d:%llu: Abort command - %s\n", 9262 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9263 9264 return ret; 9265 } 9266 9267 /** 9268 * qla4xxx_eh_device_reset - callback for target reset. 9269 * @cmd: Pointer to Linux's SCSI command structure 9270 * 9271 * This routine is called by the Linux OS to reset all luns on the 9272 * specified target. 9273 **/ 9274 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9275 { 9276 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9277 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9278 int ret = FAILED, stat; 9279 int rval; 9280 9281 if (!ddb_entry) 9282 return ret; 9283 9284 ret = iscsi_block_scsi_eh(cmd); 9285 if (ret) 9286 return ret; 9287 ret = FAILED; 9288 9289 ql4_printk(KERN_INFO, ha, 9290 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no, 9291 cmd->device->channel, cmd->device->id, cmd->device->lun); 9292 9293 DEBUG2(printk(KERN_INFO 9294 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9295 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9296 cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ, 9297 ha->dpc_flags, cmd->result, cmd->allowed)); 9298 9299 rval = qla4xxx_isp_check_reg(ha); 9300 if (rval != QLA_SUCCESS) { 9301 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9302 return FAILED; 9303 } 9304 9305 /* FIXME: wait for hba to go online */ 9306 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9307 if (stat != QLA_SUCCESS) { 9308 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9309 goto eh_dev_reset_done; 9310 } 9311 9312 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9313 cmd->device)) { 9314 ql4_printk(KERN_INFO, ha, 9315 "DEVICE RESET FAILED - waiting for " 9316 "commands.\n"); 9317 goto eh_dev_reset_done; 9318 } 9319 9320 /* Send marker. */ 9321 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9322 MM_LUN_RESET) != QLA_SUCCESS) 9323 goto eh_dev_reset_done; 9324 9325 ql4_printk(KERN_INFO, ha, 9326 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n", 9327 ha->host_no, cmd->device->channel, cmd->device->id, 9328 cmd->device->lun); 9329 9330 ret = SUCCESS; 9331 9332 eh_dev_reset_done: 9333 9334 return ret; 9335 } 9336 9337 /** 9338 * qla4xxx_eh_target_reset - callback for target reset. 9339 * @cmd: Pointer to Linux's SCSI command structure 9340 * 9341 * This routine is called by the Linux OS to reset the target. 9342 **/ 9343 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9344 { 9345 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9346 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9347 int stat, ret; 9348 int rval; 9349 9350 if (!ddb_entry) 9351 return FAILED; 9352 9353 ret = iscsi_block_scsi_eh(cmd); 9354 if (ret) 9355 return ret; 9356 9357 starget_printk(KERN_INFO, scsi_target(cmd->device), 9358 "WARM TARGET RESET ISSUED.\n"); 9359 9360 DEBUG2(printk(KERN_INFO 9361 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9362 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9363 ha->host_no, cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ, 9364 ha->dpc_flags, cmd->result, cmd->allowed)); 9365 9366 rval = qla4xxx_isp_check_reg(ha); 9367 if (rval != QLA_SUCCESS) { 9368 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9369 return FAILED; 9370 } 9371 9372 stat = qla4xxx_reset_target(ha, ddb_entry); 9373 if (stat != QLA_SUCCESS) { 9374 starget_printk(KERN_INFO, scsi_target(cmd->device), 9375 "WARM TARGET RESET FAILED.\n"); 9376 return FAILED; 9377 } 9378 9379 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9380 NULL)) { 9381 starget_printk(KERN_INFO, scsi_target(cmd->device), 9382 "WARM TARGET DEVICE RESET FAILED - " 9383 "waiting for commands.\n"); 9384 return FAILED; 9385 } 9386 9387 /* Send marker. */ 9388 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9389 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9390 starget_printk(KERN_INFO, scsi_target(cmd->device), 9391 "WARM TARGET DEVICE RESET FAILED - " 9392 "marker iocb failed.\n"); 9393 return FAILED; 9394 } 9395 9396 starget_printk(KERN_INFO, scsi_target(cmd->device), 9397 "WARM TARGET RESET SUCCEEDED.\n"); 9398 return SUCCESS; 9399 } 9400 9401 /** 9402 * qla4xxx_is_eh_active - check if error handler is running 9403 * @shost: Pointer to SCSI Host struct 9404 * 9405 * This routine finds that if reset host is called in EH 9406 * scenario or from some application like sg_reset 9407 **/ 9408 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9409 { 9410 if (shost->shost_state == SHOST_RECOVERY) 9411 return 1; 9412 return 0; 9413 } 9414 9415 /** 9416 * qla4xxx_eh_host_reset - kernel callback 9417 * @cmd: Pointer to Linux's SCSI command structure 9418 * 9419 * This routine is invoked by the Linux kernel to perform fatal error 9420 * recovery on the specified adapter. 9421 **/ 9422 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9423 { 9424 int return_status = FAILED; 9425 struct scsi_qla_host *ha; 9426 int rval; 9427 9428 ha = to_qla_host(cmd->device->host); 9429 9430 rval = qla4xxx_isp_check_reg(ha); 9431 if (rval != QLA_SUCCESS) { 9432 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9433 return FAILED; 9434 } 9435 9436 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9437 qla4_83xx_set_idc_dontreset(ha); 9438 9439 /* 9440 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9441 * protocol drivers, we should not set device_state to NEED_RESET 9442 */ 9443 if (ql4xdontresethba || 9444 ((is_qla8032(ha) || is_qla8042(ha)) && 9445 qla4_83xx_idc_dontreset(ha))) { 9446 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9447 ha->host_no, __func__)); 9448 9449 /* Clear outstanding srb in queues */ 9450 if (qla4xxx_is_eh_active(cmd->device->host)) 9451 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9452 9453 return FAILED; 9454 } 9455 9456 ql4_printk(KERN_INFO, ha, 9457 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no, 9458 cmd->device->channel, cmd->device->id, cmd->device->lun); 9459 9460 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9461 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9462 "DEAD.\n", ha->host_no, cmd->device->channel, 9463 __func__)); 9464 9465 return FAILED; 9466 } 9467 9468 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9469 if (is_qla80XX(ha)) 9470 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9471 else 9472 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9473 } 9474 9475 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9476 return_status = SUCCESS; 9477 9478 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9479 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9480 9481 return return_status; 9482 } 9483 9484 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9485 { 9486 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9487 uint32_t mbox_sts[MBOX_REG_COUNT]; 9488 struct addr_ctrl_blk_def *acb = NULL; 9489 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9490 int rval = QLA_SUCCESS; 9491 dma_addr_t acb_dma; 9492 9493 acb = dma_alloc_coherent(&ha->pdev->dev, 9494 sizeof(struct addr_ctrl_blk_def), 9495 &acb_dma, GFP_KERNEL); 9496 if (!acb) { 9497 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9498 __func__); 9499 rval = -ENOMEM; 9500 goto exit_port_reset; 9501 } 9502 9503 memset(acb, 0, acb_len); 9504 9505 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9506 if (rval != QLA_SUCCESS) { 9507 rval = -EIO; 9508 goto exit_free_acb; 9509 } 9510 9511 rval = qla4xxx_disable_acb(ha); 9512 if (rval != QLA_SUCCESS) { 9513 rval = -EIO; 9514 goto exit_free_acb; 9515 } 9516 9517 wait_for_completion_timeout(&ha->disable_acb_comp, 9518 DISABLE_ACB_TOV * HZ); 9519 9520 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9521 if (rval != QLA_SUCCESS) { 9522 rval = -EIO; 9523 goto exit_free_acb; 9524 } 9525 9526 exit_free_acb: 9527 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9528 acb, acb_dma); 9529 exit_port_reset: 9530 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9531 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9532 return rval; 9533 } 9534 9535 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9536 { 9537 struct scsi_qla_host *ha = to_qla_host(shost); 9538 int rval = QLA_SUCCESS; 9539 uint32_t idc_ctrl; 9540 9541 if (ql4xdontresethba) { 9542 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9543 __func__)); 9544 rval = -EPERM; 9545 goto exit_host_reset; 9546 } 9547 9548 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9549 goto recover_adapter; 9550 9551 switch (reset_type) { 9552 case SCSI_ADAPTER_RESET: 9553 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9554 break; 9555 case SCSI_FIRMWARE_RESET: 9556 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9557 if (is_qla80XX(ha)) 9558 /* set firmware context reset */ 9559 set_bit(DPC_RESET_HA_FW_CONTEXT, 9560 &ha->dpc_flags); 9561 else { 9562 rval = qla4xxx_context_reset(ha); 9563 goto exit_host_reset; 9564 } 9565 } 9566 break; 9567 } 9568 9569 recover_adapter: 9570 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9571 * reset is issued by application */ 9572 if ((is_qla8032(ha) || is_qla8042(ha)) && 9573 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9574 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9575 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9576 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9577 } 9578 9579 rval = qla4xxx_recover_adapter(ha); 9580 if (rval != QLA_SUCCESS) { 9581 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9582 __func__)); 9583 rval = -EIO; 9584 } 9585 9586 exit_host_reset: 9587 return rval; 9588 } 9589 9590 /* PCI AER driver recovers from all correctable errors w/o 9591 * driver intervention. For uncorrectable errors PCI AER 9592 * driver calls the following device driver's callbacks 9593 * 9594 * - Fatal Errors - link_reset 9595 * - Non-Fatal Errors - driver's error_detected() which 9596 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9597 * 9598 * PCI AER driver calls 9599 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled() 9600 * returns RECOVERED or NEED_RESET if fw_hung 9601 * NEED_RESET - driver's slot_reset() 9602 * DISCONNECT - device is dead & cannot recover 9603 * RECOVERED - driver's resume() 9604 */ 9605 static pci_ers_result_t 9606 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9607 { 9608 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9609 9610 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9611 ha->host_no, __func__, state); 9612 9613 if (!is_aer_supported(ha)) 9614 return PCI_ERS_RESULT_NONE; 9615 9616 switch (state) { 9617 case pci_channel_io_normal: 9618 clear_bit(AF_EEH_BUSY, &ha->flags); 9619 return PCI_ERS_RESULT_CAN_RECOVER; 9620 case pci_channel_io_frozen: 9621 set_bit(AF_EEH_BUSY, &ha->flags); 9622 qla4xxx_mailbox_premature_completion(ha); 9623 qla4xxx_free_irqs(ha); 9624 pci_disable_device(pdev); 9625 /* Return back all IOs */ 9626 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9627 return PCI_ERS_RESULT_NEED_RESET; 9628 case pci_channel_io_perm_failure: 9629 set_bit(AF_EEH_BUSY, &ha->flags); 9630 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9631 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9632 return PCI_ERS_RESULT_DISCONNECT; 9633 } 9634 return PCI_ERS_RESULT_NEED_RESET; 9635 } 9636 9637 /** 9638 * qla4xxx_pci_mmio_enabled() - gets called if 9639 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9640 * and read/write to the device still works. 9641 * @pdev: PCI device pointer 9642 **/ 9643 static pci_ers_result_t 9644 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9645 { 9646 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9647 9648 if (!is_aer_supported(ha)) 9649 return PCI_ERS_RESULT_NONE; 9650 9651 return PCI_ERS_RESULT_RECOVERED; 9652 } 9653 9654 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9655 { 9656 uint32_t rval = QLA_ERROR; 9657 int fn; 9658 struct pci_dev *other_pdev = NULL; 9659 9660 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9661 9662 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9663 9664 if (test_bit(AF_ONLINE, &ha->flags)) { 9665 clear_bit(AF_ONLINE, &ha->flags); 9666 clear_bit(AF_LINK_UP, &ha->flags); 9667 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9668 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9669 } 9670 9671 fn = PCI_FUNC(ha->pdev->devfn); 9672 if (is_qla8022(ha)) { 9673 while (fn > 0) { 9674 fn--; 9675 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9676 ha->host_no, __func__, fn); 9677 /* Get the pci device given the domain, bus, 9678 * slot/function number */ 9679 other_pdev = pci_get_domain_bus_and_slot( 9680 pci_domain_nr(ha->pdev->bus), 9681 ha->pdev->bus->number, 9682 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9683 fn)); 9684 9685 if (!other_pdev) 9686 continue; 9687 9688 if (atomic_read(&other_pdev->enable_cnt)) { 9689 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9690 ha->host_no, __func__, fn); 9691 pci_dev_put(other_pdev); 9692 break; 9693 } 9694 pci_dev_put(other_pdev); 9695 } 9696 } else { 9697 /* this case is meant for ISP83xx/ISP84xx only */ 9698 if (qla4_83xx_can_perform_reset(ha)) { 9699 /* reset fn as iSCSI is going to perform the reset */ 9700 fn = 0; 9701 } 9702 } 9703 9704 /* The first function on the card, the reset owner will 9705 * start & initialize the firmware. The other functions 9706 * on the card will reset the firmware context 9707 */ 9708 if (!fn) { 9709 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9710 "0x%x is the owner\n", ha->host_no, __func__, 9711 ha->pdev->devfn); 9712 9713 ha->isp_ops->idc_lock(ha); 9714 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9715 QLA8XXX_DEV_COLD); 9716 ha->isp_ops->idc_unlock(ha); 9717 9718 rval = qla4_8xxx_update_idc_reg(ha); 9719 if (rval == QLA_ERROR) { 9720 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9721 ha->host_no, __func__); 9722 ha->isp_ops->idc_lock(ha); 9723 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9724 QLA8XXX_DEV_FAILED); 9725 ha->isp_ops->idc_unlock(ha); 9726 goto exit_error_recovery; 9727 } 9728 9729 clear_bit(AF_FW_RECOVERY, &ha->flags); 9730 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9731 9732 if (rval != QLA_SUCCESS) { 9733 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9734 "FAILED\n", ha->host_no, __func__); 9735 qla4xxx_free_irqs(ha); 9736 ha->isp_ops->idc_lock(ha); 9737 qla4_8xxx_clear_drv_active(ha); 9738 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9739 QLA8XXX_DEV_FAILED); 9740 ha->isp_ops->idc_unlock(ha); 9741 } else { 9742 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9743 "READY\n", ha->host_no, __func__); 9744 ha->isp_ops->idc_lock(ha); 9745 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9746 QLA8XXX_DEV_READY); 9747 /* Clear driver state register */ 9748 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9749 qla4_8xxx_set_drv_active(ha); 9750 ha->isp_ops->idc_unlock(ha); 9751 ha->isp_ops->enable_intrs(ha); 9752 } 9753 } else { 9754 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9755 "the reset owner\n", ha->host_no, __func__, 9756 ha->pdev->devfn); 9757 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9758 QLA8XXX_DEV_READY)) { 9759 clear_bit(AF_FW_RECOVERY, &ha->flags); 9760 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9761 if (rval == QLA_SUCCESS) 9762 ha->isp_ops->enable_intrs(ha); 9763 else 9764 qla4xxx_free_irqs(ha); 9765 9766 ha->isp_ops->idc_lock(ha); 9767 qla4_8xxx_set_drv_active(ha); 9768 ha->isp_ops->idc_unlock(ha); 9769 } 9770 } 9771 exit_error_recovery: 9772 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9773 return rval; 9774 } 9775 9776 static pci_ers_result_t 9777 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9778 { 9779 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9780 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9781 int rc; 9782 9783 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9784 ha->host_no, __func__); 9785 9786 if (!is_aer_supported(ha)) 9787 return PCI_ERS_RESULT_NONE; 9788 9789 /* Restore the saved state of PCIe device - 9790 * BAR registers, PCI Config space, PCIX, MSI, 9791 * IOV states 9792 */ 9793 pci_restore_state(pdev); 9794 9795 /* pci_restore_state() clears the saved_state flag of the device 9796 * save restored state which resets saved_state flag 9797 */ 9798 pci_save_state(pdev); 9799 9800 /* Initialize device or resume if in suspended state */ 9801 rc = pci_enable_device(pdev); 9802 if (rc) { 9803 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9804 "device after reset\n", ha->host_no, __func__); 9805 goto exit_slot_reset; 9806 } 9807 9808 ha->isp_ops->disable_intrs(ha); 9809 9810 if (is_qla80XX(ha)) { 9811 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9812 ret = PCI_ERS_RESULT_RECOVERED; 9813 goto exit_slot_reset; 9814 } else 9815 goto exit_slot_reset; 9816 } 9817 9818 exit_slot_reset: 9819 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9820 "device after reset\n", ha->host_no, __func__, ret); 9821 return ret; 9822 } 9823 9824 static void 9825 qla4xxx_pci_resume(struct pci_dev *pdev) 9826 { 9827 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9828 int ret; 9829 9830 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9831 ha->host_no, __func__); 9832 9833 ret = qla4xxx_wait_for_hba_online(ha); 9834 if (ret != QLA_SUCCESS) { 9835 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9836 "resume I/O from slot/link_reset\n", ha->host_no, 9837 __func__); 9838 } 9839 9840 clear_bit(AF_EEH_BUSY, &ha->flags); 9841 } 9842 9843 static const struct pci_error_handlers qla4xxx_err_handler = { 9844 .error_detected = qla4xxx_pci_error_detected, 9845 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9846 .slot_reset = qla4xxx_pci_slot_reset, 9847 .resume = qla4xxx_pci_resume, 9848 }; 9849 9850 static const struct pci_device_id qla4xxx_pci_tbl[] = { 9851 { 9852 .vendor = PCI_VENDOR_ID_QLOGIC, 9853 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9854 .subvendor = PCI_ANY_ID, 9855 .subdevice = PCI_ANY_ID, 9856 }, 9857 { 9858 .vendor = PCI_VENDOR_ID_QLOGIC, 9859 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9860 .subvendor = PCI_ANY_ID, 9861 .subdevice = PCI_ANY_ID, 9862 }, 9863 { 9864 .vendor = PCI_VENDOR_ID_QLOGIC, 9865 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9866 .subvendor = PCI_ANY_ID, 9867 .subdevice = PCI_ANY_ID, 9868 }, 9869 { 9870 .vendor = PCI_VENDOR_ID_QLOGIC, 9871 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9872 .subvendor = PCI_ANY_ID, 9873 .subdevice = PCI_ANY_ID, 9874 }, 9875 { 9876 .vendor = PCI_VENDOR_ID_QLOGIC, 9877 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9878 .subvendor = PCI_ANY_ID, 9879 .subdevice = PCI_ANY_ID, 9880 }, 9881 { 9882 .vendor = PCI_VENDOR_ID_QLOGIC, 9883 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9884 .subvendor = PCI_ANY_ID, 9885 .subdevice = PCI_ANY_ID, 9886 }, 9887 {0, 0}, 9888 }; 9889 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9890 9891 static struct pci_driver qla4xxx_pci_driver = { 9892 .name = DRIVER_NAME, 9893 .id_table = qla4xxx_pci_tbl, 9894 .probe = qla4xxx_probe_adapter, 9895 .remove = qla4xxx_remove_adapter, 9896 .err_handler = &qla4xxx_err_handler, 9897 }; 9898 9899 static int __init qla4xxx_module_init(void) 9900 { 9901 int ret; 9902 9903 if (ql4xqfulltracking) 9904 qla4xxx_driver_template.track_queue_depth = 1; 9905 9906 /* Allocate cache for SRBs. */ 9907 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9908 SLAB_HWCACHE_ALIGN, NULL); 9909 if (srb_cachep == NULL) { 9910 printk(KERN_ERR 9911 "%s: Unable to allocate SRB cache..." 9912 "Failing load!\n", DRIVER_NAME); 9913 ret = -ENOMEM; 9914 goto no_srp_cache; 9915 } 9916 9917 /* Derive version string. */ 9918 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9919 if (ql4xextended_error_logging) 9920 strcat(qla4xxx_version_str, "-debug"); 9921 9922 qla4xxx_scsi_transport = 9923 iscsi_register_transport(&qla4xxx_iscsi_transport); 9924 if (!qla4xxx_scsi_transport){ 9925 ret = -ENODEV; 9926 goto release_srb_cache; 9927 } 9928 9929 ret = pci_register_driver(&qla4xxx_pci_driver); 9930 if (ret) 9931 goto unregister_transport; 9932 9933 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9934 return 0; 9935 9936 unregister_transport: 9937 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9938 release_srb_cache: 9939 kmem_cache_destroy(srb_cachep); 9940 no_srp_cache: 9941 return ret; 9942 } 9943 9944 static void __exit qla4xxx_module_exit(void) 9945 { 9946 pci_unregister_driver(&qla4xxx_pci_driver); 9947 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9948 kmem_cache_destroy(srb_cachep); 9949 } 9950 9951 module_init(qla4xxx_module_init); 9952 module_exit(qla4xxx_module_exit); 9953 9954 MODULE_AUTHOR("QLogic Corporation"); 9955 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9956 MODULE_LICENSE("GPL"); 9957 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9958