1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * QLogic iSCSI HBA Driver 4 * Copyright (c) 2003-2013 QLogic Corporation 5 */ 6 #include <linux/moduleparam.h> 7 #include <linux/slab.h> 8 #include <linux/blkdev.h> 9 #include <linux/iscsi_boot_sysfs.h> 10 #include <linux/inet.h> 11 12 #include <scsi/scsi_tcq.h> 13 #include <scsi/scsicam.h> 14 15 #include "ql4_def.h" 16 #include "ql4_version.h" 17 #include "ql4_glbl.h" 18 #include "ql4_dbg.h" 19 #include "ql4_inline.h" 20 #include "ql4_83xx.h" 21 22 /* 23 * Driver version 24 */ 25 static char qla4xxx_version_str[40]; 26 27 /* 28 * SRB allocation cache 29 */ 30 static struct kmem_cache *srb_cachep; 31 32 /* 33 * Module parameter information and variables 34 */ 35 static int ql4xdisablesysfsboot = 1; 36 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); 37 MODULE_PARM_DESC(ql4xdisablesysfsboot, 38 " Set to disable exporting boot targets to sysfs.\n" 39 "\t\t 0 - Export boot targets\n" 40 "\t\t 1 - Do not export boot targets (Default)"); 41 42 int ql4xdontresethba; 43 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 44 MODULE_PARM_DESC(ql4xdontresethba, 45 " Don't reset the HBA for driver recovery.\n" 46 "\t\t 0 - It will reset HBA (Default)\n" 47 "\t\t 1 - It will NOT reset HBA"); 48 49 int ql4xextended_error_logging; 50 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 51 MODULE_PARM_DESC(ql4xextended_error_logging, 52 " Option to enable extended error logging.\n" 53 "\t\t 0 - no logging (Default)\n" 54 "\t\t 2 - debug logging"); 55 56 int ql4xenablemsix = 1; 57 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 58 MODULE_PARM_DESC(ql4xenablemsix, 59 " Set to enable MSI or MSI-X interrupt mechanism.\n" 60 "\t\t 0 = enable INTx interrupt mechanism.\n" 61 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n" 62 "\t\t 2 = enable MSI interrupt mechanism."); 63 64 #define QL4_DEF_QDEPTH 32 65 static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 66 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 67 MODULE_PARM_DESC(ql4xmaxqdepth, 68 " Maximum queue depth to report for target devices.\n" 69 "\t\t Default: 32."); 70 71 static int ql4xqfulltracking = 1; 72 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR); 73 MODULE_PARM_DESC(ql4xqfulltracking, 74 " Enable or disable dynamic tracking and adjustment of\n" 75 "\t\t scsi device queue depth.\n" 76 "\t\t 0 - Disable.\n" 77 "\t\t 1 - Enable. (Default)"); 78 79 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 80 module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 81 MODULE_PARM_DESC(ql4xsess_recovery_tmo, 82 " Target Session Recovery Timeout.\n" 83 "\t\t Default: 120 sec."); 84 85 int ql4xmdcapmask = 0; 86 module_param(ql4xmdcapmask, int, S_IRUGO); 87 MODULE_PARM_DESC(ql4xmdcapmask, 88 " Set the Minidump driver capture mask level.\n" 89 "\t\t Default is 0 (firmware default capture mask)\n" 90 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF"); 91 92 int ql4xenablemd = 1; 93 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR); 94 MODULE_PARM_DESC(ql4xenablemd, 95 " Set to enable minidump.\n" 96 "\t\t 0 - disable minidump\n" 97 "\t\t 1 - enable minidump (Default)"); 98 99 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 100 /* 101 * SCSI host template entry points 102 */ 103 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 104 105 /* 106 * iSCSI template entry points 107 */ 108 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 109 enum iscsi_param param, char *buf); 110 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 111 enum iscsi_param param, char *buf); 112 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 113 enum iscsi_host_param param, char *buf); 114 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, 115 uint32_t len); 116 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 117 enum iscsi_param_type param_type, 118 int param, char *buf); 119 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 120 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 121 struct sockaddr *dst_addr, 122 int non_blocking); 123 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 124 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 125 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 126 enum iscsi_param param, char *buf); 127 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 128 static struct iscsi_cls_conn * 129 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 130 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 131 struct iscsi_cls_conn *cls_conn, 132 uint64_t transport_fd, int is_leading); 133 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 134 static struct iscsi_cls_session * 135 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 136 uint16_t qdepth, uint32_t initial_cmdsn); 137 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 138 static void qla4xxx_task_work(struct work_struct *wdata); 139 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 140 static int qla4xxx_task_xmit(struct iscsi_task *); 141 static void qla4xxx_task_cleanup(struct iscsi_task *); 142 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 143 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 144 struct iscsi_stats *stats); 145 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 146 uint32_t iface_type, uint32_t payload_size, 147 uint32_t pid, struct sockaddr *dst_addr); 148 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 149 uint32_t *num_entries, char *buf); 150 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx); 151 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, 152 int len); 153 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len); 154 155 /* 156 * SCSI host template entry points 157 */ 158 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 159 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 160 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 161 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 162 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 163 static int qla4xxx_slave_alloc(struct scsi_device *device); 164 static umode_t qla4_attr_is_visible(int param_type, int param); 165 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); 166 167 /* 168 * iSCSI Flash DDB sysfs entry points 169 */ 170 static int 171 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 172 struct iscsi_bus_flash_conn *fnode_conn, 173 void *data, int len); 174 static int 175 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 176 int param, char *buf); 177 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 178 int len); 179 static int 180 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess); 181 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 182 struct iscsi_bus_flash_conn *fnode_conn); 183 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 184 struct iscsi_bus_flash_conn *fnode_conn); 185 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess); 186 187 static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 188 QLA82XX_LEGACY_INTR_CONFIG; 189 190 static const uint32_t qla4_82xx_reg_tbl[] = { 191 QLA82XX_PEG_HALT_STATUS1, 192 QLA82XX_PEG_HALT_STATUS2, 193 QLA82XX_PEG_ALIVE_COUNTER, 194 QLA82XX_CRB_DRV_ACTIVE, 195 QLA82XX_CRB_DEV_STATE, 196 QLA82XX_CRB_DRV_STATE, 197 QLA82XX_CRB_DRV_SCRATCH, 198 QLA82XX_CRB_DEV_PART_INFO, 199 QLA82XX_CRB_DRV_IDC_VERSION, 200 QLA82XX_FW_VERSION_MAJOR, 201 QLA82XX_FW_VERSION_MINOR, 202 QLA82XX_FW_VERSION_SUB, 203 CRB_CMDPEG_STATE, 204 CRB_TEMP_STATE, 205 }; 206 207 static const uint32_t qla4_83xx_reg_tbl[] = { 208 QLA83XX_PEG_HALT_STATUS1, 209 QLA83XX_PEG_HALT_STATUS2, 210 QLA83XX_PEG_ALIVE_COUNTER, 211 QLA83XX_CRB_DRV_ACTIVE, 212 QLA83XX_CRB_DEV_STATE, 213 QLA83XX_CRB_DRV_STATE, 214 QLA83XX_CRB_DRV_SCRATCH, 215 QLA83XX_CRB_DEV_PART_INFO1, 216 QLA83XX_CRB_IDC_VER_MAJOR, 217 QLA83XX_FW_VER_MAJOR, 218 QLA83XX_FW_VER_MINOR, 219 QLA83XX_FW_VER_SUB, 220 QLA83XX_CMDPEG_STATE, 221 QLA83XX_ASIC_TEMP, 222 }; 223 224 static struct scsi_host_template qla4xxx_driver_template = { 225 .module = THIS_MODULE, 226 .name = DRIVER_NAME, 227 .proc_name = DRIVER_NAME, 228 .queuecommand = qla4xxx_queuecommand, 229 230 .eh_abort_handler = qla4xxx_eh_abort, 231 .eh_device_reset_handler = qla4xxx_eh_device_reset, 232 .eh_target_reset_handler = qla4xxx_eh_target_reset, 233 .eh_host_reset_handler = qla4xxx_eh_host_reset, 234 .eh_timed_out = qla4xxx_eh_cmd_timed_out, 235 236 .slave_alloc = qla4xxx_slave_alloc, 237 .change_queue_depth = scsi_change_queue_depth, 238 239 .this_id = -1, 240 .cmd_per_lun = 3, 241 .sg_tablesize = SG_ALL, 242 243 .max_sectors = 0xFFFF, 244 .shost_attrs = qla4xxx_host_attrs, 245 .host_reset = qla4xxx_host_reset, 246 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 247 }; 248 249 static struct iscsi_transport qla4xxx_iscsi_transport = { 250 .owner = THIS_MODULE, 251 .name = DRIVER_NAME, 252 .caps = CAP_TEXT_NEGO | 253 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 254 CAP_DATADGST | CAP_LOGIN_OFFLOAD | 255 CAP_MULTI_R2T, 256 .attr_is_visible = qla4_attr_is_visible, 257 .create_session = qla4xxx_session_create, 258 .destroy_session = qla4xxx_session_destroy, 259 .start_conn = qla4xxx_conn_start, 260 .create_conn = qla4xxx_conn_create, 261 .bind_conn = qla4xxx_conn_bind, 262 .stop_conn = iscsi_conn_stop, 263 .destroy_conn = qla4xxx_conn_destroy, 264 .set_param = iscsi_set_param, 265 .get_conn_param = qla4xxx_conn_get_param, 266 .get_session_param = qla4xxx_session_get_param, 267 .get_ep_param = qla4xxx_get_ep_param, 268 .ep_connect = qla4xxx_ep_connect, 269 .ep_poll = qla4xxx_ep_poll, 270 .ep_disconnect = qla4xxx_ep_disconnect, 271 .get_stats = qla4xxx_conn_get_stats, 272 .send_pdu = iscsi_conn_send_pdu, 273 .xmit_task = qla4xxx_task_xmit, 274 .cleanup_task = qla4xxx_task_cleanup, 275 .alloc_pdu = qla4xxx_alloc_pdu, 276 277 .get_host_param = qla4xxx_host_get_param, 278 .set_iface_param = qla4xxx_iface_set_param, 279 .get_iface_param = qla4xxx_get_iface_param, 280 .bsg_request = qla4xxx_bsg_request, 281 .send_ping = qla4xxx_send_ping, 282 .get_chap = qla4xxx_get_chap_list, 283 .delete_chap = qla4xxx_delete_chap, 284 .set_chap = qla4xxx_set_chap_entry, 285 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param, 286 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param, 287 .new_flashnode = qla4xxx_sysfs_ddb_add, 288 .del_flashnode = qla4xxx_sysfs_ddb_delete, 289 .login_flashnode = qla4xxx_sysfs_ddb_login, 290 .logout_flashnode = qla4xxx_sysfs_ddb_logout, 291 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid, 292 .get_host_stats = qla4xxx_get_host_stats, 293 }; 294 295 static struct scsi_transport_template *qla4xxx_scsi_transport; 296 297 static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha) 298 { 299 u32 reg_val = 0; 300 int rval = QLA_SUCCESS; 301 302 if (is_qla8022(ha)) 303 reg_val = readl(&ha->qla4_82xx_reg->host_status); 304 else if (is_qla8032(ha) || is_qla8042(ha)) 305 reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER); 306 else 307 reg_val = readw(&ha->reg->ctrl_status); 308 309 if (reg_val == QL4_ISP_REG_DISCONNECT) 310 rval = QLA_ERROR; 311 312 return rval; 313 } 314 315 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 316 uint32_t iface_type, uint32_t payload_size, 317 uint32_t pid, struct sockaddr *dst_addr) 318 { 319 struct scsi_qla_host *ha = to_qla_host(shost); 320 struct sockaddr_in *addr; 321 struct sockaddr_in6 *addr6; 322 uint32_t options = 0; 323 uint8_t ipaddr[IPv6_ADDR_LEN]; 324 int rval; 325 326 memset(ipaddr, 0, IPv6_ADDR_LEN); 327 /* IPv4 to IPv4 */ 328 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && 329 (dst_addr->sa_family == AF_INET)) { 330 addr = (struct sockaddr_in *)dst_addr; 331 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); 332 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " 333 "dest: %pI4\n", __func__, 334 &ha->ip_config.ip_address, ipaddr)); 335 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, 336 ipaddr); 337 if (rval) 338 rval = -EINVAL; 339 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && 340 (dst_addr->sa_family == AF_INET6)) { 341 /* IPv6 to IPv6 */ 342 addr6 = (struct sockaddr_in6 *)dst_addr; 343 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); 344 345 options |= PING_IPV6_PROTOCOL_ENABLE; 346 347 /* Ping using LinkLocal address */ 348 if ((iface_num == 0) || (iface_num == 1)) { 349 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " 350 "src: %pI6 dest: %pI6\n", __func__, 351 &ha->ip_config.ipv6_link_local_addr, 352 ipaddr)); 353 options |= PING_IPV6_LINKLOCAL_ADDR; 354 rval = qla4xxx_ping_iocb(ha, options, payload_size, 355 pid, ipaddr); 356 } else { 357 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " 358 "not supported\n", __func__, iface_num); 359 rval = -ENOSYS; 360 goto exit_send_ping; 361 } 362 363 /* 364 * If ping using LinkLocal address fails, try ping using 365 * IPv6 address 366 */ 367 if (rval != QLA_SUCCESS) { 368 options &= ~PING_IPV6_LINKLOCAL_ADDR; 369 if (iface_num == 0) { 370 options |= PING_IPV6_ADDR0; 371 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 372 "Ping src: %pI6 " 373 "dest: %pI6\n", __func__, 374 &ha->ip_config.ipv6_addr0, 375 ipaddr)); 376 } else if (iface_num == 1) { 377 options |= PING_IPV6_ADDR1; 378 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 379 "Ping src: %pI6 " 380 "dest: %pI6\n", __func__, 381 &ha->ip_config.ipv6_addr1, 382 ipaddr)); 383 } 384 rval = qla4xxx_ping_iocb(ha, options, payload_size, 385 pid, ipaddr); 386 if (rval) 387 rval = -EINVAL; 388 } 389 } else 390 rval = -ENOSYS; 391 exit_send_ping: 392 return rval; 393 } 394 395 static umode_t qla4_attr_is_visible(int param_type, int param) 396 { 397 switch (param_type) { 398 case ISCSI_HOST_PARAM: 399 switch (param) { 400 case ISCSI_HOST_PARAM_HWADDRESS: 401 case ISCSI_HOST_PARAM_IPADDRESS: 402 case ISCSI_HOST_PARAM_INITIATOR_NAME: 403 case ISCSI_HOST_PARAM_PORT_STATE: 404 case ISCSI_HOST_PARAM_PORT_SPEED: 405 return S_IRUGO; 406 default: 407 return 0; 408 } 409 case ISCSI_PARAM: 410 switch (param) { 411 case ISCSI_PARAM_PERSISTENT_ADDRESS: 412 case ISCSI_PARAM_PERSISTENT_PORT: 413 case ISCSI_PARAM_CONN_ADDRESS: 414 case ISCSI_PARAM_CONN_PORT: 415 case ISCSI_PARAM_TARGET_NAME: 416 case ISCSI_PARAM_TPGT: 417 case ISCSI_PARAM_TARGET_ALIAS: 418 case ISCSI_PARAM_MAX_BURST: 419 case ISCSI_PARAM_MAX_R2T: 420 case ISCSI_PARAM_FIRST_BURST: 421 case ISCSI_PARAM_MAX_RECV_DLENGTH: 422 case ISCSI_PARAM_MAX_XMIT_DLENGTH: 423 case ISCSI_PARAM_IFACE_NAME: 424 case ISCSI_PARAM_CHAP_OUT_IDX: 425 case ISCSI_PARAM_CHAP_IN_IDX: 426 case ISCSI_PARAM_USERNAME: 427 case ISCSI_PARAM_PASSWORD: 428 case ISCSI_PARAM_USERNAME_IN: 429 case ISCSI_PARAM_PASSWORD_IN: 430 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE: 431 case ISCSI_PARAM_DISCOVERY_SESS: 432 case ISCSI_PARAM_PORTAL_TYPE: 433 case ISCSI_PARAM_CHAP_AUTH_EN: 434 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN: 435 case ISCSI_PARAM_BIDI_CHAP_EN: 436 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL: 437 case ISCSI_PARAM_DEF_TIME2WAIT: 438 case ISCSI_PARAM_DEF_TIME2RETAIN: 439 case ISCSI_PARAM_HDRDGST_EN: 440 case ISCSI_PARAM_DATADGST_EN: 441 case ISCSI_PARAM_INITIAL_R2T_EN: 442 case ISCSI_PARAM_IMM_DATA_EN: 443 case ISCSI_PARAM_PDU_INORDER_EN: 444 case ISCSI_PARAM_DATASEQ_INORDER_EN: 445 case ISCSI_PARAM_MAX_SEGMENT_SIZE: 446 case ISCSI_PARAM_TCP_TIMESTAMP_STAT: 447 case ISCSI_PARAM_TCP_WSF_DISABLE: 448 case ISCSI_PARAM_TCP_NAGLE_DISABLE: 449 case ISCSI_PARAM_TCP_TIMER_SCALE: 450 case ISCSI_PARAM_TCP_TIMESTAMP_EN: 451 case ISCSI_PARAM_TCP_XMIT_WSF: 452 case ISCSI_PARAM_TCP_RECV_WSF: 453 case ISCSI_PARAM_IP_FRAGMENT_DISABLE: 454 case ISCSI_PARAM_IPV4_TOS: 455 case ISCSI_PARAM_IPV6_TC: 456 case ISCSI_PARAM_IPV6_FLOW_LABEL: 457 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6: 458 case ISCSI_PARAM_KEEPALIVE_TMO: 459 case ISCSI_PARAM_LOCAL_PORT: 460 case ISCSI_PARAM_ISID: 461 case ISCSI_PARAM_TSID: 462 case ISCSI_PARAM_DEF_TASKMGMT_TMO: 463 case ISCSI_PARAM_ERL: 464 case ISCSI_PARAM_STATSN: 465 case ISCSI_PARAM_EXP_STATSN: 466 case ISCSI_PARAM_DISCOVERY_PARENT_IDX: 467 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE: 468 case ISCSI_PARAM_LOCAL_IPADDR: 469 return S_IRUGO; 470 default: 471 return 0; 472 } 473 case ISCSI_NET_PARAM: 474 switch (param) { 475 case ISCSI_NET_PARAM_IPV4_ADDR: 476 case ISCSI_NET_PARAM_IPV4_SUBNET: 477 case ISCSI_NET_PARAM_IPV4_GW: 478 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 479 case ISCSI_NET_PARAM_IFACE_ENABLE: 480 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 481 case ISCSI_NET_PARAM_IPV6_ADDR: 482 case ISCSI_NET_PARAM_IPV6_ROUTER: 483 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 484 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 485 case ISCSI_NET_PARAM_VLAN_ID: 486 case ISCSI_NET_PARAM_VLAN_PRIORITY: 487 case ISCSI_NET_PARAM_VLAN_ENABLED: 488 case ISCSI_NET_PARAM_MTU: 489 case ISCSI_NET_PARAM_PORT: 490 case ISCSI_NET_PARAM_IPADDR_STATE: 491 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 492 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 493 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 494 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 495 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 496 case ISCSI_NET_PARAM_TCP_WSF: 497 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 498 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 499 case ISCSI_NET_PARAM_CACHE_ID: 500 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 501 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 502 case ISCSI_NET_PARAM_IPV4_TOS_EN: 503 case ISCSI_NET_PARAM_IPV4_TOS: 504 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 505 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 506 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 507 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 508 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 509 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 510 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 511 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 512 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 513 case ISCSI_NET_PARAM_REDIRECT_EN: 514 case ISCSI_NET_PARAM_IPV4_TTL: 515 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 516 case ISCSI_NET_PARAM_IPV6_MLD_EN: 517 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 518 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 519 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 520 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 521 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 522 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 523 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 524 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 525 return S_IRUGO; 526 default: 527 return 0; 528 } 529 case ISCSI_IFACE_PARAM: 530 switch (param) { 531 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 532 case ISCSI_IFACE_PARAM_HDRDGST_EN: 533 case ISCSI_IFACE_PARAM_DATADGST_EN: 534 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 535 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 536 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 537 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 538 case ISCSI_IFACE_PARAM_ERL: 539 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 540 case ISCSI_IFACE_PARAM_FIRST_BURST: 541 case ISCSI_IFACE_PARAM_MAX_R2T: 542 case ISCSI_IFACE_PARAM_MAX_BURST: 543 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 544 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 545 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 546 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 547 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 548 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 549 return S_IRUGO; 550 default: 551 return 0; 552 } 553 case ISCSI_FLASHNODE_PARAM: 554 switch (param) { 555 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 556 case ISCSI_FLASHNODE_PORTAL_TYPE: 557 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 558 case ISCSI_FLASHNODE_DISCOVERY_SESS: 559 case ISCSI_FLASHNODE_ENTRY_EN: 560 case ISCSI_FLASHNODE_HDR_DGST_EN: 561 case ISCSI_FLASHNODE_DATA_DGST_EN: 562 case ISCSI_FLASHNODE_IMM_DATA_EN: 563 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 564 case ISCSI_FLASHNODE_DATASEQ_INORDER: 565 case ISCSI_FLASHNODE_PDU_INORDER: 566 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 567 case ISCSI_FLASHNODE_SNACK_REQ_EN: 568 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 569 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 570 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 571 case ISCSI_FLASHNODE_ERL: 572 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 573 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 574 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 575 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 576 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 577 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 578 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 579 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 580 case ISCSI_FLASHNODE_FIRST_BURST: 581 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 582 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 583 case ISCSI_FLASHNODE_MAX_R2T: 584 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 585 case ISCSI_FLASHNODE_ISID: 586 case ISCSI_FLASHNODE_TSID: 587 case ISCSI_FLASHNODE_PORT: 588 case ISCSI_FLASHNODE_MAX_BURST: 589 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 590 case ISCSI_FLASHNODE_IPADDR: 591 case ISCSI_FLASHNODE_ALIAS: 592 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 593 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 594 case ISCSI_FLASHNODE_LOCAL_PORT: 595 case ISCSI_FLASHNODE_IPV4_TOS: 596 case ISCSI_FLASHNODE_IPV6_TC: 597 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 598 case ISCSI_FLASHNODE_NAME: 599 case ISCSI_FLASHNODE_TPGT: 600 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 601 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 602 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 603 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 604 case ISCSI_FLASHNODE_TCP_RECV_WSF: 605 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 606 case ISCSI_FLASHNODE_USERNAME: 607 case ISCSI_FLASHNODE_PASSWORD: 608 case ISCSI_FLASHNODE_STATSN: 609 case ISCSI_FLASHNODE_EXP_STATSN: 610 case ISCSI_FLASHNODE_IS_BOOT_TGT: 611 return S_IRUGO; 612 default: 613 return 0; 614 } 615 } 616 617 return 0; 618 } 619 620 /** 621 * qla4xxx_create chap_list - Create CHAP list from FLASH 622 * @ha: pointer to adapter structure 623 * 624 * Read flash and make a list of CHAP entries, during login when a CHAP entry 625 * is received, it will be checked in this list. If entry exist then the CHAP 626 * entry index is set in the DDB. If CHAP entry does not exist in this list 627 * then a new entry is added in FLASH in CHAP table and the index obtained is 628 * used in the DDB. 629 **/ 630 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 631 { 632 int rval = 0; 633 uint8_t *chap_flash_data = NULL; 634 uint32_t offset; 635 dma_addr_t chap_dma; 636 uint32_t chap_size = 0; 637 638 if (is_qla40XX(ha)) 639 chap_size = MAX_CHAP_ENTRIES_40XX * 640 sizeof(struct ql4_chap_table); 641 else /* Single region contains CHAP info for both 642 * ports which is divided into half for each port. 643 */ 644 chap_size = ha->hw.flt_chap_size / 2; 645 646 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 647 &chap_dma, GFP_KERNEL); 648 if (!chap_flash_data) { 649 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 650 return; 651 } 652 653 if (is_qla40XX(ha)) { 654 offset = FLASH_CHAP_OFFSET; 655 } else { 656 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 657 if (ha->port_num == 1) 658 offset += chap_size; 659 } 660 661 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 662 if (rval != QLA_SUCCESS) 663 goto exit_chap_list; 664 665 if (ha->chap_list == NULL) 666 ha->chap_list = vmalloc(chap_size); 667 if (ha->chap_list == NULL) { 668 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 669 goto exit_chap_list; 670 } 671 672 memset(ha->chap_list, 0, chap_size); 673 memcpy(ha->chap_list, chap_flash_data, chap_size); 674 675 exit_chap_list: 676 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma); 677 } 678 679 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha, 680 int16_t chap_index, 681 struct ql4_chap_table **chap_entry) 682 { 683 int rval = QLA_ERROR; 684 int max_chap_entries; 685 686 if (!ha->chap_list) { 687 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 688 goto exit_get_chap; 689 } 690 691 if (is_qla80XX(ha)) 692 max_chap_entries = (ha->hw.flt_chap_size / 2) / 693 sizeof(struct ql4_chap_table); 694 else 695 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 696 697 if (chap_index > max_chap_entries) { 698 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n"); 699 goto exit_get_chap; 700 } 701 702 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index; 703 if ((*chap_entry)->cookie != 704 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 705 *chap_entry = NULL; 706 } else { 707 rval = QLA_SUCCESS; 708 } 709 710 exit_get_chap: 711 return rval; 712 } 713 714 /** 715 * qla4xxx_find_free_chap_index - Find the first free chap index 716 * @ha: pointer to adapter structure 717 * @chap_index: CHAP index to be returned 718 * 719 * Find the first free chap index available in the chap table 720 * 721 * Note: Caller should acquire the chap lock before getting here. 722 **/ 723 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha, 724 uint16_t *chap_index) 725 { 726 int i, rval; 727 int free_index = -1; 728 int max_chap_entries = 0; 729 struct ql4_chap_table *chap_table; 730 731 if (is_qla80XX(ha)) 732 max_chap_entries = (ha->hw.flt_chap_size / 2) / 733 sizeof(struct ql4_chap_table); 734 else 735 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 736 737 if (!ha->chap_list) { 738 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 739 rval = QLA_ERROR; 740 goto exit_find_chap; 741 } 742 743 for (i = 0; i < max_chap_entries; i++) { 744 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 745 746 if ((chap_table->cookie != 747 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) && 748 (i > MAX_RESRV_CHAP_IDX)) { 749 free_index = i; 750 break; 751 } 752 } 753 754 if (free_index != -1) { 755 *chap_index = free_index; 756 rval = QLA_SUCCESS; 757 } else { 758 rval = QLA_ERROR; 759 } 760 761 exit_find_chap: 762 return rval; 763 } 764 765 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 766 uint32_t *num_entries, char *buf) 767 { 768 struct scsi_qla_host *ha = to_qla_host(shost); 769 struct ql4_chap_table *chap_table; 770 struct iscsi_chap_rec *chap_rec; 771 int max_chap_entries = 0; 772 int valid_chap_entries = 0; 773 int ret = 0, i; 774 775 if (is_qla80XX(ha)) 776 max_chap_entries = (ha->hw.flt_chap_size / 2) / 777 sizeof(struct ql4_chap_table); 778 else 779 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 780 781 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 782 __func__, *num_entries, chap_tbl_idx); 783 784 if (!buf) { 785 ret = -ENOMEM; 786 goto exit_get_chap_list; 787 } 788 789 qla4xxx_create_chap_list(ha); 790 791 chap_rec = (struct iscsi_chap_rec *) buf; 792 mutex_lock(&ha->chap_sem); 793 for (i = chap_tbl_idx; i < max_chap_entries; i++) { 794 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 795 if (chap_table->cookie != 796 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) 797 continue; 798 799 chap_rec->chap_tbl_idx = i; 800 strlcpy(chap_rec->username, chap_table->name, 801 ISCSI_CHAP_AUTH_NAME_MAX_LEN); 802 strlcpy(chap_rec->password, chap_table->secret, 803 QL4_CHAP_MAX_SECRET_LEN); 804 chap_rec->password_length = chap_table->secret_len; 805 806 if (chap_table->flags & BIT_7) /* local */ 807 chap_rec->chap_type = CHAP_TYPE_OUT; 808 809 if (chap_table->flags & BIT_6) /* peer */ 810 chap_rec->chap_type = CHAP_TYPE_IN; 811 812 chap_rec++; 813 814 valid_chap_entries++; 815 if (valid_chap_entries == *num_entries) 816 break; 817 else 818 continue; 819 } 820 mutex_unlock(&ha->chap_sem); 821 822 exit_get_chap_list: 823 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 824 __func__, valid_chap_entries); 825 *num_entries = valid_chap_entries; 826 return ret; 827 } 828 829 static int __qla4xxx_is_chap_active(struct device *dev, void *data) 830 { 831 int ret = 0; 832 uint16_t *chap_tbl_idx = (uint16_t *) data; 833 struct iscsi_cls_session *cls_session; 834 struct iscsi_session *sess; 835 struct ddb_entry *ddb_entry; 836 837 if (!iscsi_is_session_dev(dev)) 838 goto exit_is_chap_active; 839 840 cls_session = iscsi_dev_to_session(dev); 841 sess = cls_session->dd_data; 842 ddb_entry = sess->dd_data; 843 844 if (iscsi_session_chkready(cls_session)) 845 goto exit_is_chap_active; 846 847 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 848 ret = 1; 849 850 exit_is_chap_active: 851 return ret; 852 } 853 854 static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 855 uint16_t chap_tbl_idx) 856 { 857 int ret = 0; 858 859 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 860 __qla4xxx_is_chap_active); 861 862 return ret; 863 } 864 865 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 866 { 867 struct scsi_qla_host *ha = to_qla_host(shost); 868 struct ql4_chap_table *chap_table; 869 dma_addr_t chap_dma; 870 int max_chap_entries = 0; 871 uint32_t offset = 0; 872 uint32_t chap_size; 873 int ret = 0; 874 875 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 876 if (chap_table == NULL) 877 return -ENOMEM; 878 879 if (is_qla80XX(ha)) 880 max_chap_entries = (ha->hw.flt_chap_size / 2) / 881 sizeof(struct ql4_chap_table); 882 else 883 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 884 885 if (chap_tbl_idx > max_chap_entries) { 886 ret = -EINVAL; 887 goto exit_delete_chap; 888 } 889 890 /* Check if chap index is in use. 891 * If chap is in use don't delet chap entry */ 892 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 893 if (ret) { 894 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 895 "delete from flash\n", chap_tbl_idx); 896 ret = -EBUSY; 897 goto exit_delete_chap; 898 } 899 900 chap_size = sizeof(struct ql4_chap_table); 901 if (is_qla40XX(ha)) 902 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 903 else { 904 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 905 /* flt_chap_size is CHAP table size for both ports 906 * so divide it by 2 to calculate the offset for second port 907 */ 908 if (ha->port_num == 1) 909 offset += (ha->hw.flt_chap_size / 2); 910 offset += (chap_tbl_idx * chap_size); 911 } 912 913 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 914 if (ret != QLA_SUCCESS) { 915 ret = -EINVAL; 916 goto exit_delete_chap; 917 } 918 919 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 920 __le16_to_cpu(chap_table->cookie))); 921 922 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 923 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 924 goto exit_delete_chap; 925 } 926 927 chap_table->cookie = __constant_cpu_to_le16(0xFFFF); 928 929 offset = FLASH_CHAP_OFFSET | 930 (chap_tbl_idx * sizeof(struct ql4_chap_table)); 931 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 932 FLASH_OPT_RMW_COMMIT); 933 if (ret == QLA_SUCCESS && ha->chap_list) { 934 mutex_lock(&ha->chap_sem); 935 /* Update ha chap_list cache */ 936 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 937 chap_table, sizeof(struct ql4_chap_table)); 938 mutex_unlock(&ha->chap_sem); 939 } 940 if (ret != QLA_SUCCESS) 941 ret = -EINVAL; 942 943 exit_delete_chap: 944 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 945 return ret; 946 } 947 948 /** 949 * qla4xxx_set_chap_entry - Make chap entry with given information 950 * @shost: pointer to host 951 * @data: chap info - credentials, index and type to make chap entry 952 * @len: length of data 953 * 954 * Add or update chap entry with the given information 955 **/ 956 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len) 957 { 958 struct scsi_qla_host *ha = to_qla_host(shost); 959 struct iscsi_chap_rec chap_rec; 960 struct ql4_chap_table *chap_entry = NULL; 961 struct iscsi_param_info *param_info; 962 struct nlattr *attr; 963 int max_chap_entries = 0; 964 int type; 965 int rem = len; 966 int rc = 0; 967 int size; 968 969 memset(&chap_rec, 0, sizeof(chap_rec)); 970 971 nla_for_each_attr(attr, data, len, rem) { 972 param_info = nla_data(attr); 973 974 switch (param_info->param) { 975 case ISCSI_CHAP_PARAM_INDEX: 976 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value; 977 break; 978 case ISCSI_CHAP_PARAM_CHAP_TYPE: 979 chap_rec.chap_type = param_info->value[0]; 980 break; 981 case ISCSI_CHAP_PARAM_USERNAME: 982 size = min_t(size_t, sizeof(chap_rec.username), 983 param_info->len); 984 memcpy(chap_rec.username, param_info->value, size); 985 break; 986 case ISCSI_CHAP_PARAM_PASSWORD: 987 size = min_t(size_t, sizeof(chap_rec.password), 988 param_info->len); 989 memcpy(chap_rec.password, param_info->value, size); 990 break; 991 case ISCSI_CHAP_PARAM_PASSWORD_LEN: 992 chap_rec.password_length = param_info->value[0]; 993 break; 994 default: 995 ql4_printk(KERN_ERR, ha, 996 "%s: No such sysfs attribute\n", __func__); 997 rc = -ENOSYS; 998 goto exit_set_chap; 999 } 1000 } 1001 1002 if (chap_rec.chap_type == CHAP_TYPE_IN) 1003 type = BIDI_CHAP; 1004 else 1005 type = LOCAL_CHAP; 1006 1007 if (is_qla80XX(ha)) 1008 max_chap_entries = (ha->hw.flt_chap_size / 2) / 1009 sizeof(struct ql4_chap_table); 1010 else 1011 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 1012 1013 mutex_lock(&ha->chap_sem); 1014 if (chap_rec.chap_tbl_idx < max_chap_entries) { 1015 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx, 1016 &chap_entry); 1017 if (!rc) { 1018 if (!(type == qla4xxx_get_chap_type(chap_entry))) { 1019 ql4_printk(KERN_INFO, ha, 1020 "Type mismatch for CHAP entry %d\n", 1021 chap_rec.chap_tbl_idx); 1022 rc = -EINVAL; 1023 goto exit_unlock_chap; 1024 } 1025 1026 /* If chap index is in use then don't modify it */ 1027 rc = qla4xxx_is_chap_active(shost, 1028 chap_rec.chap_tbl_idx); 1029 if (rc) { 1030 ql4_printk(KERN_INFO, ha, 1031 "CHAP entry %d is in use\n", 1032 chap_rec.chap_tbl_idx); 1033 rc = -EBUSY; 1034 goto exit_unlock_chap; 1035 } 1036 } 1037 } else { 1038 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx); 1039 if (rc) { 1040 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n"); 1041 rc = -EBUSY; 1042 goto exit_unlock_chap; 1043 } 1044 } 1045 1046 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password, 1047 chap_rec.chap_tbl_idx, type); 1048 1049 exit_unlock_chap: 1050 mutex_unlock(&ha->chap_sem); 1051 1052 exit_set_chap: 1053 return rc; 1054 } 1055 1056 1057 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len) 1058 { 1059 struct scsi_qla_host *ha = to_qla_host(shost); 1060 struct iscsi_offload_host_stats *host_stats = NULL; 1061 int host_stats_size; 1062 int ret = 0; 1063 int ddb_idx = 0; 1064 struct ql_iscsi_stats *ql_iscsi_stats = NULL; 1065 int stats_size; 1066 dma_addr_t iscsi_stats_dma; 1067 1068 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__)); 1069 1070 host_stats_size = sizeof(struct iscsi_offload_host_stats); 1071 1072 if (host_stats_size != len) { 1073 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n", 1074 __func__, len, host_stats_size); 1075 ret = -EINVAL; 1076 goto exit_host_stats; 1077 } 1078 host_stats = (struct iscsi_offload_host_stats *)buf; 1079 1080 if (!buf) { 1081 ret = -ENOMEM; 1082 goto exit_host_stats; 1083 } 1084 1085 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1086 1087 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1088 &iscsi_stats_dma, GFP_KERNEL); 1089 if (!ql_iscsi_stats) { 1090 ql4_printk(KERN_ERR, ha, 1091 "Unable to allocate memory for iscsi stats\n"); 1092 ret = -ENOMEM; 1093 goto exit_host_stats; 1094 } 1095 1096 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size, 1097 iscsi_stats_dma); 1098 if (ret != QLA_SUCCESS) { 1099 ql4_printk(KERN_ERR, ha, 1100 "Unable to retrieve iscsi stats\n"); 1101 ret = -EIO; 1102 goto exit_host_stats; 1103 } 1104 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames); 1105 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes); 1106 host_stats->mactx_multicast_frames = 1107 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames); 1108 host_stats->mactx_broadcast_frames = 1109 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames); 1110 host_stats->mactx_pause_frames = 1111 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames); 1112 host_stats->mactx_control_frames = 1113 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames); 1114 host_stats->mactx_deferral = 1115 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral); 1116 host_stats->mactx_excess_deferral = 1117 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral); 1118 host_stats->mactx_late_collision = 1119 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision); 1120 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort); 1121 host_stats->mactx_single_collision = 1122 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision); 1123 host_stats->mactx_multiple_collision = 1124 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision); 1125 host_stats->mactx_collision = 1126 le64_to_cpu(ql_iscsi_stats->mac_tx_collision); 1127 host_stats->mactx_frames_dropped = 1128 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped); 1129 host_stats->mactx_jumbo_frames = 1130 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames); 1131 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames); 1132 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes); 1133 host_stats->macrx_unknown_control_frames = 1134 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames); 1135 host_stats->macrx_pause_frames = 1136 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames); 1137 host_stats->macrx_control_frames = 1138 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames); 1139 host_stats->macrx_dribble = 1140 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble); 1141 host_stats->macrx_frame_length_error = 1142 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error); 1143 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber); 1144 host_stats->macrx_carrier_sense_error = 1145 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error); 1146 host_stats->macrx_frame_discarded = 1147 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded); 1148 host_stats->macrx_frames_dropped = 1149 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped); 1150 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error); 1151 host_stats->mac_encoding_error = 1152 le64_to_cpu(ql_iscsi_stats->mac_encoding_error); 1153 host_stats->macrx_length_error_large = 1154 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large); 1155 host_stats->macrx_length_error_small = 1156 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small); 1157 host_stats->macrx_multicast_frames = 1158 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames); 1159 host_stats->macrx_broadcast_frames = 1160 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames); 1161 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets); 1162 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes); 1163 host_stats->iptx_fragments = 1164 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments); 1165 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets); 1166 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes); 1167 host_stats->iprx_fragments = 1168 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments); 1169 host_stats->ip_datagram_reassembly = 1170 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly); 1171 host_stats->ip_invalid_address_error = 1172 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error); 1173 host_stats->ip_error_packets = 1174 le64_to_cpu(ql_iscsi_stats->ip_error_packets); 1175 host_stats->ip_fragrx_overlap = 1176 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap); 1177 host_stats->ip_fragrx_outoforder = 1178 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder); 1179 host_stats->ip_datagram_reassembly_timeout = 1180 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout); 1181 host_stats->ipv6tx_packets = 1182 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets); 1183 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes); 1184 host_stats->ipv6tx_fragments = 1185 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments); 1186 host_stats->ipv6rx_packets = 1187 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets); 1188 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes); 1189 host_stats->ipv6rx_fragments = 1190 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments); 1191 host_stats->ipv6_datagram_reassembly = 1192 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly); 1193 host_stats->ipv6_invalid_address_error = 1194 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error); 1195 host_stats->ipv6_error_packets = 1196 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets); 1197 host_stats->ipv6_fragrx_overlap = 1198 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap); 1199 host_stats->ipv6_fragrx_outoforder = 1200 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder); 1201 host_stats->ipv6_datagram_reassembly_timeout = 1202 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout); 1203 host_stats->tcptx_segments = 1204 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments); 1205 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes); 1206 host_stats->tcprx_segments = 1207 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments); 1208 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte); 1209 host_stats->tcp_duplicate_ack_retx = 1210 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx); 1211 host_stats->tcp_retx_timer_expired = 1212 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired); 1213 host_stats->tcprx_duplicate_ack = 1214 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack); 1215 host_stats->tcprx_pure_ackr = 1216 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr); 1217 host_stats->tcptx_delayed_ack = 1218 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack); 1219 host_stats->tcptx_pure_ack = 1220 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack); 1221 host_stats->tcprx_segment_error = 1222 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error); 1223 host_stats->tcprx_segment_outoforder = 1224 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder); 1225 host_stats->tcprx_window_probe = 1226 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe); 1227 host_stats->tcprx_window_update = 1228 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update); 1229 host_stats->tcptx_window_probe_persist = 1230 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist); 1231 host_stats->ecc_error_correction = 1232 le64_to_cpu(ql_iscsi_stats->ecc_error_correction); 1233 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx); 1234 host_stats->iscsi_data_bytes_tx = 1235 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx); 1236 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx); 1237 host_stats->iscsi_data_bytes_rx = 1238 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx); 1239 host_stats->iscsi_io_completed = 1240 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed); 1241 host_stats->iscsi_unexpected_io_rx = 1242 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx); 1243 host_stats->iscsi_format_error = 1244 le64_to_cpu(ql_iscsi_stats->iscsi_format_error); 1245 host_stats->iscsi_hdr_digest_error = 1246 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error); 1247 host_stats->iscsi_data_digest_error = 1248 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error); 1249 host_stats->iscsi_sequence_error = 1250 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error); 1251 exit_host_stats: 1252 if (ql_iscsi_stats) 1253 dma_free_coherent(&ha->pdev->dev, stats_size, 1254 ql_iscsi_stats, iscsi_stats_dma); 1255 1256 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n", 1257 __func__); 1258 return ret; 1259 } 1260 1261 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 1262 enum iscsi_param_type param_type, 1263 int param, char *buf) 1264 { 1265 struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 1266 struct scsi_qla_host *ha = to_qla_host(shost); 1267 int ival; 1268 char *pval = NULL; 1269 int len = -ENOSYS; 1270 1271 if (param_type == ISCSI_NET_PARAM) { 1272 switch (param) { 1273 case ISCSI_NET_PARAM_IPV4_ADDR: 1274 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1275 break; 1276 case ISCSI_NET_PARAM_IPV4_SUBNET: 1277 len = sprintf(buf, "%pI4\n", 1278 &ha->ip_config.subnet_mask); 1279 break; 1280 case ISCSI_NET_PARAM_IPV4_GW: 1281 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 1282 break; 1283 case ISCSI_NET_PARAM_IFACE_ENABLE: 1284 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1285 OP_STATE(ha->ip_config.ipv4_options, 1286 IPOPT_IPV4_PROTOCOL_ENABLE, pval); 1287 } else { 1288 OP_STATE(ha->ip_config.ipv6_options, 1289 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval); 1290 } 1291 1292 len = sprintf(buf, "%s\n", pval); 1293 break; 1294 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1295 len = sprintf(buf, "%s\n", 1296 (ha->ip_config.tcp_options & 1297 TCPOPT_DHCP_ENABLE) ? 1298 "dhcp" : "static"); 1299 break; 1300 case ISCSI_NET_PARAM_IPV6_ADDR: 1301 if (iface->iface_num == 0) 1302 len = sprintf(buf, "%pI6\n", 1303 &ha->ip_config.ipv6_addr0); 1304 if (iface->iface_num == 1) 1305 len = sprintf(buf, "%pI6\n", 1306 &ha->ip_config.ipv6_addr1); 1307 break; 1308 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1309 len = sprintf(buf, "%pI6\n", 1310 &ha->ip_config.ipv6_link_local_addr); 1311 break; 1312 case ISCSI_NET_PARAM_IPV6_ROUTER: 1313 len = sprintf(buf, "%pI6\n", 1314 &ha->ip_config.ipv6_default_router_addr); 1315 break; 1316 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1317 pval = (ha->ip_config.ipv6_addl_options & 1318 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 1319 "nd" : "static"; 1320 1321 len = sprintf(buf, "%s\n", pval); 1322 break; 1323 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1324 pval = (ha->ip_config.ipv6_addl_options & 1325 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 1326 "auto" : "static"; 1327 1328 len = sprintf(buf, "%s\n", pval); 1329 break; 1330 case ISCSI_NET_PARAM_VLAN_ID: 1331 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1332 ival = ha->ip_config.ipv4_vlan_tag & 1333 ISCSI_MAX_VLAN_ID; 1334 else 1335 ival = ha->ip_config.ipv6_vlan_tag & 1336 ISCSI_MAX_VLAN_ID; 1337 1338 len = sprintf(buf, "%d\n", ival); 1339 break; 1340 case ISCSI_NET_PARAM_VLAN_PRIORITY: 1341 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1342 ival = (ha->ip_config.ipv4_vlan_tag >> 13) & 1343 ISCSI_MAX_VLAN_PRIORITY; 1344 else 1345 ival = (ha->ip_config.ipv6_vlan_tag >> 13) & 1346 ISCSI_MAX_VLAN_PRIORITY; 1347 1348 len = sprintf(buf, "%d\n", ival); 1349 break; 1350 case ISCSI_NET_PARAM_VLAN_ENABLED: 1351 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1352 OP_STATE(ha->ip_config.ipv4_options, 1353 IPOPT_VLAN_TAGGING_ENABLE, pval); 1354 } else { 1355 OP_STATE(ha->ip_config.ipv6_options, 1356 IPV6_OPT_VLAN_TAGGING_ENABLE, pval); 1357 } 1358 len = sprintf(buf, "%s\n", pval); 1359 break; 1360 case ISCSI_NET_PARAM_MTU: 1361 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 1362 break; 1363 case ISCSI_NET_PARAM_PORT: 1364 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1365 len = sprintf(buf, "%d\n", 1366 ha->ip_config.ipv4_port); 1367 else 1368 len = sprintf(buf, "%d\n", 1369 ha->ip_config.ipv6_port); 1370 break; 1371 case ISCSI_NET_PARAM_IPADDR_STATE: 1372 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1373 pval = iscsi_get_ipaddress_state_name( 1374 ha->ip_config.ipv4_addr_state); 1375 } else { 1376 if (iface->iface_num == 0) 1377 pval = iscsi_get_ipaddress_state_name( 1378 ha->ip_config.ipv6_addr0_state); 1379 else if (iface->iface_num == 1) 1380 pval = iscsi_get_ipaddress_state_name( 1381 ha->ip_config.ipv6_addr1_state); 1382 } 1383 1384 len = sprintf(buf, "%s\n", pval); 1385 break; 1386 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 1387 pval = iscsi_get_ipaddress_state_name( 1388 ha->ip_config.ipv6_link_local_state); 1389 len = sprintf(buf, "%s\n", pval); 1390 break; 1391 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 1392 pval = iscsi_get_router_state_name( 1393 ha->ip_config.ipv6_default_router_state); 1394 len = sprintf(buf, "%s\n", pval); 1395 break; 1396 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 1397 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1398 OP_STATE(~ha->ip_config.tcp_options, 1399 TCPOPT_DELAYED_ACK_DISABLE, pval); 1400 } else { 1401 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1402 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval); 1403 } 1404 len = sprintf(buf, "%s\n", pval); 1405 break; 1406 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 1407 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1408 OP_STATE(~ha->ip_config.tcp_options, 1409 TCPOPT_NAGLE_ALGO_DISABLE, pval); 1410 } else { 1411 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1412 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval); 1413 } 1414 len = sprintf(buf, "%s\n", pval); 1415 break; 1416 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 1417 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1418 OP_STATE(~ha->ip_config.tcp_options, 1419 TCPOPT_WINDOW_SCALE_DISABLE, pval); 1420 } else { 1421 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1422 IPV6_TCPOPT_WINDOW_SCALE_DISABLE, 1423 pval); 1424 } 1425 len = sprintf(buf, "%s\n", pval); 1426 break; 1427 case ISCSI_NET_PARAM_TCP_WSF: 1428 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1429 len = sprintf(buf, "%d\n", 1430 ha->ip_config.tcp_wsf); 1431 else 1432 len = sprintf(buf, "%d\n", 1433 ha->ip_config.ipv6_tcp_wsf); 1434 break; 1435 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 1436 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1437 ival = (ha->ip_config.tcp_options & 1438 TCPOPT_TIMER_SCALE) >> 1; 1439 else 1440 ival = (ha->ip_config.ipv6_tcp_options & 1441 IPV6_TCPOPT_TIMER_SCALE) >> 1; 1442 1443 len = sprintf(buf, "%d\n", ival); 1444 break; 1445 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 1446 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1447 OP_STATE(ha->ip_config.tcp_options, 1448 TCPOPT_TIMESTAMP_ENABLE, pval); 1449 } else { 1450 OP_STATE(ha->ip_config.ipv6_tcp_options, 1451 IPV6_TCPOPT_TIMESTAMP_EN, pval); 1452 } 1453 len = sprintf(buf, "%s\n", pval); 1454 break; 1455 case ISCSI_NET_PARAM_CACHE_ID: 1456 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1457 len = sprintf(buf, "%d\n", 1458 ha->ip_config.ipv4_cache_id); 1459 else 1460 len = sprintf(buf, "%d\n", 1461 ha->ip_config.ipv6_cache_id); 1462 break; 1463 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 1464 OP_STATE(ha->ip_config.tcp_options, 1465 TCPOPT_DNS_SERVER_IP_EN, pval); 1466 1467 len = sprintf(buf, "%s\n", pval); 1468 break; 1469 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 1470 OP_STATE(ha->ip_config.tcp_options, 1471 TCPOPT_SLP_DA_INFO_EN, pval); 1472 1473 len = sprintf(buf, "%s\n", pval); 1474 break; 1475 case ISCSI_NET_PARAM_IPV4_TOS_EN: 1476 OP_STATE(ha->ip_config.ipv4_options, 1477 IPOPT_IPV4_TOS_EN, pval); 1478 1479 len = sprintf(buf, "%s\n", pval); 1480 break; 1481 case ISCSI_NET_PARAM_IPV4_TOS: 1482 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos); 1483 break; 1484 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 1485 OP_STATE(ha->ip_config.ipv4_options, 1486 IPOPT_GRAT_ARP_EN, pval); 1487 1488 len = sprintf(buf, "%s\n", pval); 1489 break; 1490 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 1491 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN, 1492 pval); 1493 1494 len = sprintf(buf, "%s\n", pval); 1495 break; 1496 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 1497 pval = (ha->ip_config.ipv4_alt_cid_len) ? 1498 (char *)ha->ip_config.ipv4_alt_cid : ""; 1499 1500 len = sprintf(buf, "%s\n", pval); 1501 break; 1502 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 1503 OP_STATE(ha->ip_config.ipv4_options, 1504 IPOPT_REQ_VID_EN, pval); 1505 1506 len = sprintf(buf, "%s\n", pval); 1507 break; 1508 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 1509 OP_STATE(ha->ip_config.ipv4_options, 1510 IPOPT_USE_VID_EN, pval); 1511 1512 len = sprintf(buf, "%s\n", pval); 1513 break; 1514 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 1515 pval = (ha->ip_config.ipv4_vid_len) ? 1516 (char *)ha->ip_config.ipv4_vid : ""; 1517 1518 len = sprintf(buf, "%s\n", pval); 1519 break; 1520 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 1521 OP_STATE(ha->ip_config.ipv4_options, 1522 IPOPT_LEARN_IQN_EN, pval); 1523 1524 len = sprintf(buf, "%s\n", pval); 1525 break; 1526 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 1527 OP_STATE(~ha->ip_config.ipv4_options, 1528 IPOPT_FRAGMENTATION_DISABLE, pval); 1529 1530 len = sprintf(buf, "%s\n", pval); 1531 break; 1532 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 1533 OP_STATE(ha->ip_config.ipv4_options, 1534 IPOPT_IN_FORWARD_EN, pval); 1535 1536 len = sprintf(buf, "%s\n", pval); 1537 break; 1538 case ISCSI_NET_PARAM_REDIRECT_EN: 1539 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1540 OP_STATE(ha->ip_config.ipv4_options, 1541 IPOPT_ARP_REDIRECT_EN, pval); 1542 } else { 1543 OP_STATE(ha->ip_config.ipv6_options, 1544 IPV6_OPT_REDIRECT_EN, pval); 1545 } 1546 len = sprintf(buf, "%s\n", pval); 1547 break; 1548 case ISCSI_NET_PARAM_IPV4_TTL: 1549 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl); 1550 break; 1551 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 1552 OP_STATE(ha->ip_config.ipv6_options, 1553 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval); 1554 1555 len = sprintf(buf, "%s\n", pval); 1556 break; 1557 case ISCSI_NET_PARAM_IPV6_MLD_EN: 1558 OP_STATE(ha->ip_config.ipv6_addl_options, 1559 IPV6_ADDOPT_MLD_EN, pval); 1560 1561 len = sprintf(buf, "%s\n", pval); 1562 break; 1563 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 1564 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl); 1565 break; 1566 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 1567 len = sprintf(buf, "%d\n", 1568 ha->ip_config.ipv6_traffic_class); 1569 break; 1570 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 1571 len = sprintf(buf, "%d\n", 1572 ha->ip_config.ipv6_hop_limit); 1573 break; 1574 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 1575 len = sprintf(buf, "%d\n", 1576 ha->ip_config.ipv6_nd_reach_time); 1577 break; 1578 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 1579 len = sprintf(buf, "%d\n", 1580 ha->ip_config.ipv6_nd_rexmit_timer); 1581 break; 1582 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 1583 len = sprintf(buf, "%d\n", 1584 ha->ip_config.ipv6_nd_stale_timeout); 1585 break; 1586 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 1587 len = sprintf(buf, "%d\n", 1588 ha->ip_config.ipv6_dup_addr_detect_count); 1589 break; 1590 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 1591 len = sprintf(buf, "%d\n", 1592 ha->ip_config.ipv6_gw_advrt_mtu); 1593 break; 1594 default: 1595 len = -ENOSYS; 1596 } 1597 } else if (param_type == ISCSI_IFACE_PARAM) { 1598 switch (param) { 1599 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 1600 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout); 1601 break; 1602 case ISCSI_IFACE_PARAM_HDRDGST_EN: 1603 OP_STATE(ha->ip_config.iscsi_options, 1604 ISCSIOPTS_HEADER_DIGEST_EN, pval); 1605 1606 len = sprintf(buf, "%s\n", pval); 1607 break; 1608 case ISCSI_IFACE_PARAM_DATADGST_EN: 1609 OP_STATE(ha->ip_config.iscsi_options, 1610 ISCSIOPTS_DATA_DIGEST_EN, pval); 1611 1612 len = sprintf(buf, "%s\n", pval); 1613 break; 1614 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 1615 OP_STATE(ha->ip_config.iscsi_options, 1616 ISCSIOPTS_IMMEDIATE_DATA_EN, pval); 1617 1618 len = sprintf(buf, "%s\n", pval); 1619 break; 1620 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 1621 OP_STATE(ha->ip_config.iscsi_options, 1622 ISCSIOPTS_INITIAL_R2T_EN, pval); 1623 1624 len = sprintf(buf, "%s\n", pval); 1625 break; 1626 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 1627 OP_STATE(ha->ip_config.iscsi_options, 1628 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval); 1629 1630 len = sprintf(buf, "%s\n", pval); 1631 break; 1632 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 1633 OP_STATE(ha->ip_config.iscsi_options, 1634 ISCSIOPTS_DATA_PDU_INORDER_EN, pval); 1635 1636 len = sprintf(buf, "%s\n", pval); 1637 break; 1638 case ISCSI_IFACE_PARAM_ERL: 1639 len = sprintf(buf, "%d\n", 1640 (ha->ip_config.iscsi_options & 1641 ISCSIOPTS_ERL)); 1642 break; 1643 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 1644 len = sprintf(buf, "%u\n", 1645 ha->ip_config.iscsi_max_pdu_size * 1646 BYTE_UNITS); 1647 break; 1648 case ISCSI_IFACE_PARAM_FIRST_BURST: 1649 len = sprintf(buf, "%u\n", 1650 ha->ip_config.iscsi_first_burst_len * 1651 BYTE_UNITS); 1652 break; 1653 case ISCSI_IFACE_PARAM_MAX_R2T: 1654 len = sprintf(buf, "%d\n", 1655 ha->ip_config.iscsi_max_outstnd_r2t); 1656 break; 1657 case ISCSI_IFACE_PARAM_MAX_BURST: 1658 len = sprintf(buf, "%u\n", 1659 ha->ip_config.iscsi_max_burst_len * 1660 BYTE_UNITS); 1661 break; 1662 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 1663 OP_STATE(ha->ip_config.iscsi_options, 1664 ISCSIOPTS_CHAP_AUTH_EN, pval); 1665 1666 len = sprintf(buf, "%s\n", pval); 1667 break; 1668 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 1669 OP_STATE(ha->ip_config.iscsi_options, 1670 ISCSIOPTS_BIDI_CHAP_EN, pval); 1671 1672 len = sprintf(buf, "%s\n", pval); 1673 break; 1674 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 1675 OP_STATE(ha->ip_config.iscsi_options, 1676 ISCSIOPTS_DISCOVERY_AUTH_EN, pval); 1677 1678 len = sprintf(buf, "%s\n", pval); 1679 break; 1680 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 1681 OP_STATE(ha->ip_config.iscsi_options, 1682 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval); 1683 1684 len = sprintf(buf, "%s\n", pval); 1685 break; 1686 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 1687 OP_STATE(ha->ip_config.iscsi_options, 1688 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval); 1689 1690 len = sprintf(buf, "%s\n", pval); 1691 break; 1692 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 1693 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name); 1694 break; 1695 default: 1696 len = -ENOSYS; 1697 } 1698 } 1699 1700 return len; 1701 } 1702 1703 static struct iscsi_endpoint * 1704 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 1705 int non_blocking) 1706 { 1707 int ret; 1708 struct iscsi_endpoint *ep; 1709 struct qla_endpoint *qla_ep; 1710 struct scsi_qla_host *ha; 1711 struct sockaddr_in *addr; 1712 struct sockaddr_in6 *addr6; 1713 1714 if (!shost) { 1715 ret = -ENXIO; 1716 pr_err("%s: shost is NULL\n", __func__); 1717 return ERR_PTR(ret); 1718 } 1719 1720 ha = iscsi_host_priv(shost); 1721 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 1722 if (!ep) { 1723 ret = -ENOMEM; 1724 return ERR_PTR(ret); 1725 } 1726 1727 qla_ep = ep->dd_data; 1728 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 1729 if (dst_addr->sa_family == AF_INET) { 1730 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 1731 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 1732 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 1733 (char *)&addr->sin_addr)); 1734 } else if (dst_addr->sa_family == AF_INET6) { 1735 memcpy(&qla_ep->dst_addr, dst_addr, 1736 sizeof(struct sockaddr_in6)); 1737 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 1738 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 1739 (char *)&addr6->sin6_addr)); 1740 } else { 1741 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n", 1742 __func__); 1743 } 1744 1745 qla_ep->host = shost; 1746 1747 return ep; 1748 } 1749 1750 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 1751 { 1752 struct qla_endpoint *qla_ep; 1753 struct scsi_qla_host *ha; 1754 int ret = 0; 1755 1756 qla_ep = ep->dd_data; 1757 ha = to_qla_host(qla_ep->host); 1758 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no)); 1759 1760 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 1761 ret = 1; 1762 1763 return ret; 1764 } 1765 1766 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 1767 { 1768 struct qla_endpoint *qla_ep; 1769 struct scsi_qla_host *ha; 1770 1771 qla_ep = ep->dd_data; 1772 ha = to_qla_host(qla_ep->host); 1773 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1774 ha->host_no)); 1775 iscsi_destroy_endpoint(ep); 1776 } 1777 1778 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 1779 enum iscsi_param param, 1780 char *buf) 1781 { 1782 struct qla_endpoint *qla_ep = ep->dd_data; 1783 struct sockaddr *dst_addr; 1784 struct scsi_qla_host *ha; 1785 1786 if (!qla_ep) 1787 return -ENOTCONN; 1788 1789 ha = to_qla_host(qla_ep->host); 1790 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1791 ha->host_no)); 1792 1793 switch (param) { 1794 case ISCSI_PARAM_CONN_PORT: 1795 case ISCSI_PARAM_CONN_ADDRESS: 1796 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1797 if (!dst_addr) 1798 return -ENOTCONN; 1799 1800 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1801 &qla_ep->dst_addr, param, buf); 1802 default: 1803 return -ENOSYS; 1804 } 1805 } 1806 1807 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 1808 struct iscsi_stats *stats) 1809 { 1810 struct iscsi_session *sess; 1811 struct iscsi_cls_session *cls_sess; 1812 struct ddb_entry *ddb_entry; 1813 struct scsi_qla_host *ha; 1814 struct ql_iscsi_stats *ql_iscsi_stats; 1815 int stats_size; 1816 int ret; 1817 dma_addr_t iscsi_stats_dma; 1818 1819 cls_sess = iscsi_conn_to_session(cls_conn); 1820 sess = cls_sess->dd_data; 1821 ddb_entry = sess->dd_data; 1822 ha = ddb_entry->ha; 1823 1824 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1825 ha->host_no)); 1826 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1827 /* Allocate memory */ 1828 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1829 &iscsi_stats_dma, GFP_KERNEL); 1830 if (!ql_iscsi_stats) { 1831 ql4_printk(KERN_ERR, ha, 1832 "Unable to allocate memory for iscsi stats\n"); 1833 goto exit_get_stats; 1834 } 1835 1836 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 1837 iscsi_stats_dma); 1838 if (ret != QLA_SUCCESS) { 1839 ql4_printk(KERN_ERR, ha, 1840 "Unable to retrieve iscsi stats\n"); 1841 goto free_stats; 1842 } 1843 1844 /* octets */ 1845 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 1846 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 1847 /* xmit pdus */ 1848 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 1849 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 1850 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 1851 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 1852 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 1853 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 1854 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 1855 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 1856 /* recv pdus */ 1857 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 1858 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 1859 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 1860 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 1861 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 1862 stats->logoutrsp_pdus = 1863 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 1864 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 1865 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 1866 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 1867 1868 free_stats: 1869 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 1870 iscsi_stats_dma); 1871 exit_get_stats: 1872 return; 1873 } 1874 1875 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 1876 { 1877 struct iscsi_cls_session *session; 1878 unsigned long flags; 1879 enum blk_eh_timer_return ret = BLK_EH_DONE; 1880 1881 session = starget_to_session(scsi_target(sc->device)); 1882 1883 spin_lock_irqsave(&session->lock, flags); 1884 if (session->state == ISCSI_SESSION_FAILED) 1885 ret = BLK_EH_RESET_TIMER; 1886 spin_unlock_irqrestore(&session->lock, flags); 1887 1888 return ret; 1889 } 1890 1891 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 1892 { 1893 struct scsi_qla_host *ha = to_qla_host(shost); 1894 struct iscsi_cls_host *ihost = shost->shost_data; 1895 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 1896 1897 qla4xxx_get_firmware_state(ha); 1898 1899 switch (ha->addl_fw_state & 0x0F00) { 1900 case FW_ADDSTATE_LINK_SPEED_10MBPS: 1901 speed = ISCSI_PORT_SPEED_10MBPS; 1902 break; 1903 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1904 speed = ISCSI_PORT_SPEED_100MBPS; 1905 break; 1906 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1907 speed = ISCSI_PORT_SPEED_1GBPS; 1908 break; 1909 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1910 speed = ISCSI_PORT_SPEED_10GBPS; 1911 break; 1912 } 1913 ihost->port_speed = speed; 1914 } 1915 1916 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1917 { 1918 struct scsi_qla_host *ha = to_qla_host(shost); 1919 struct iscsi_cls_host *ihost = shost->shost_data; 1920 uint32_t state = ISCSI_PORT_STATE_DOWN; 1921 1922 if (test_bit(AF_LINK_UP, &ha->flags)) 1923 state = ISCSI_PORT_STATE_UP; 1924 1925 ihost->port_state = state; 1926 } 1927 1928 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1929 enum iscsi_host_param param, char *buf) 1930 { 1931 struct scsi_qla_host *ha = to_qla_host(shost); 1932 int len; 1933 1934 switch (param) { 1935 case ISCSI_HOST_PARAM_HWADDRESS: 1936 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1937 break; 1938 case ISCSI_HOST_PARAM_IPADDRESS: 1939 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1940 break; 1941 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1942 len = sprintf(buf, "%s\n", ha->name_string); 1943 break; 1944 case ISCSI_HOST_PARAM_PORT_STATE: 1945 qla4xxx_set_port_state(shost); 1946 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1947 break; 1948 case ISCSI_HOST_PARAM_PORT_SPEED: 1949 qla4xxx_set_port_speed(shost); 1950 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1951 break; 1952 default: 1953 return -ENOSYS; 1954 } 1955 1956 return len; 1957 } 1958 1959 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1960 { 1961 if (ha->iface_ipv4) 1962 return; 1963 1964 /* IPv4 */ 1965 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1966 &qla4xxx_iscsi_transport, 1967 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1968 if (!ha->iface_ipv4) 1969 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1970 "iface0.\n"); 1971 } 1972 1973 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1974 { 1975 if (!ha->iface_ipv6_0) 1976 /* IPv6 iface-0 */ 1977 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1978 &qla4xxx_iscsi_transport, 1979 ISCSI_IFACE_TYPE_IPV6, 0, 1980 0); 1981 if (!ha->iface_ipv6_0) 1982 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1983 "iface0.\n"); 1984 1985 if (!ha->iface_ipv6_1) 1986 /* IPv6 iface-1 */ 1987 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1988 &qla4xxx_iscsi_transport, 1989 ISCSI_IFACE_TYPE_IPV6, 1, 1990 0); 1991 if (!ha->iface_ipv6_1) 1992 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1993 "iface1.\n"); 1994 } 1995 1996 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 1997 { 1998 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 1999 qla4xxx_create_ipv4_iface(ha); 2000 2001 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 2002 qla4xxx_create_ipv6_iface(ha); 2003 } 2004 2005 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 2006 { 2007 if (ha->iface_ipv4) { 2008 iscsi_destroy_iface(ha->iface_ipv4); 2009 ha->iface_ipv4 = NULL; 2010 } 2011 } 2012 2013 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 2014 { 2015 if (ha->iface_ipv6_0) { 2016 iscsi_destroy_iface(ha->iface_ipv6_0); 2017 ha->iface_ipv6_0 = NULL; 2018 } 2019 if (ha->iface_ipv6_1) { 2020 iscsi_destroy_iface(ha->iface_ipv6_1); 2021 ha->iface_ipv6_1 = NULL; 2022 } 2023 } 2024 2025 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 2026 { 2027 qla4xxx_destroy_ipv4_iface(ha); 2028 qla4xxx_destroy_ipv6_iface(ha); 2029 } 2030 2031 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 2032 struct iscsi_iface_param_info *iface_param, 2033 struct addr_ctrl_blk *init_fw_cb) 2034 { 2035 /* 2036 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 2037 * iface_num 1 is valid only for IPv6 Addr. 2038 */ 2039 switch (iface_param->param) { 2040 case ISCSI_NET_PARAM_IPV6_ADDR: 2041 if (iface_param->iface_num & 0x1) 2042 /* IPv6 Addr 1 */ 2043 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 2044 sizeof(init_fw_cb->ipv6_addr1)); 2045 else 2046 /* IPv6 Addr 0 */ 2047 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 2048 sizeof(init_fw_cb->ipv6_addr0)); 2049 break; 2050 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 2051 if (iface_param->iface_num & 0x1) 2052 break; 2053 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 2054 sizeof(init_fw_cb->ipv6_if_id)); 2055 break; 2056 case ISCSI_NET_PARAM_IPV6_ROUTER: 2057 if (iface_param->iface_num & 0x1) 2058 break; 2059 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 2060 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2061 break; 2062 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 2063 /* Autocfg applies to even interface */ 2064 if (iface_param->iface_num & 0x1) 2065 break; 2066 2067 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 2068 init_fw_cb->ipv6_addtl_opts &= 2069 cpu_to_le16( 2070 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2071 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 2072 init_fw_cb->ipv6_addtl_opts |= 2073 cpu_to_le16( 2074 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2075 else 2076 ql4_printk(KERN_ERR, ha, 2077 "Invalid autocfg setting for IPv6 addr\n"); 2078 break; 2079 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2080 /* Autocfg applies to even interface */ 2081 if (iface_param->iface_num & 0x1) 2082 break; 2083 2084 if (iface_param->value[0] == 2085 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 2086 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 2087 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2088 else if (iface_param->value[0] == 2089 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 2090 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 2091 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2092 else 2093 ql4_printk(KERN_ERR, ha, 2094 "Invalid autocfg setting for IPv6 linklocal addr\n"); 2095 break; 2096 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 2097 /* Autocfg applies to even interface */ 2098 if (iface_param->iface_num & 0x1) 2099 break; 2100 2101 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 2102 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 2103 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2104 break; 2105 case ISCSI_NET_PARAM_IFACE_ENABLE: 2106 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2107 init_fw_cb->ipv6_opts |= 2108 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 2109 qla4xxx_create_ipv6_iface(ha); 2110 } else { 2111 init_fw_cb->ipv6_opts &= 2112 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 2113 0xFFFF); 2114 qla4xxx_destroy_ipv6_iface(ha); 2115 } 2116 break; 2117 case ISCSI_NET_PARAM_VLAN_TAG: 2118 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 2119 break; 2120 init_fw_cb->ipv6_vlan_tag = 2121 cpu_to_be16(*(uint16_t *)iface_param->value); 2122 break; 2123 case ISCSI_NET_PARAM_VLAN_ENABLED: 2124 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2125 init_fw_cb->ipv6_opts |= 2126 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 2127 else 2128 init_fw_cb->ipv6_opts &= 2129 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 2130 break; 2131 case ISCSI_NET_PARAM_MTU: 2132 init_fw_cb->eth_mtu_size = 2133 cpu_to_le16(*(uint16_t *)iface_param->value); 2134 break; 2135 case ISCSI_NET_PARAM_PORT: 2136 /* Autocfg applies to even interface */ 2137 if (iface_param->iface_num & 0x1) 2138 break; 2139 2140 init_fw_cb->ipv6_port = 2141 cpu_to_le16(*(uint16_t *)iface_param->value); 2142 break; 2143 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2144 if (iface_param->iface_num & 0x1) 2145 break; 2146 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2147 init_fw_cb->ipv6_tcp_opts |= 2148 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2149 else 2150 init_fw_cb->ipv6_tcp_opts &= 2151 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE & 2152 0xFFFF); 2153 break; 2154 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2155 if (iface_param->iface_num & 0x1) 2156 break; 2157 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2158 init_fw_cb->ipv6_tcp_opts |= 2159 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2160 else 2161 init_fw_cb->ipv6_tcp_opts &= 2162 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2163 break; 2164 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2165 if (iface_param->iface_num & 0x1) 2166 break; 2167 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2168 init_fw_cb->ipv6_tcp_opts |= 2169 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2170 else 2171 init_fw_cb->ipv6_tcp_opts &= 2172 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2173 break; 2174 case ISCSI_NET_PARAM_TCP_WSF: 2175 if (iface_param->iface_num & 0x1) 2176 break; 2177 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; 2178 break; 2179 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2180 if (iface_param->iface_num & 0x1) 2181 break; 2182 init_fw_cb->ipv6_tcp_opts &= 2183 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); 2184 init_fw_cb->ipv6_tcp_opts |= 2185 cpu_to_le16((iface_param->value[0] << 1) & 2186 IPV6_TCPOPT_TIMER_SCALE); 2187 break; 2188 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2189 if (iface_param->iface_num & 0x1) 2190 break; 2191 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2192 init_fw_cb->ipv6_tcp_opts |= 2193 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); 2194 else 2195 init_fw_cb->ipv6_tcp_opts &= 2196 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); 2197 break; 2198 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 2199 if (iface_param->iface_num & 0x1) 2200 break; 2201 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2202 init_fw_cb->ipv6_opts |= 2203 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2204 else 2205 init_fw_cb->ipv6_opts &= 2206 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2207 break; 2208 case ISCSI_NET_PARAM_REDIRECT_EN: 2209 if (iface_param->iface_num & 0x1) 2210 break; 2211 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2212 init_fw_cb->ipv6_opts |= 2213 cpu_to_le16(IPV6_OPT_REDIRECT_EN); 2214 else 2215 init_fw_cb->ipv6_opts &= 2216 cpu_to_le16(~IPV6_OPT_REDIRECT_EN); 2217 break; 2218 case ISCSI_NET_PARAM_IPV6_MLD_EN: 2219 if (iface_param->iface_num & 0x1) 2220 break; 2221 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2222 init_fw_cb->ipv6_addtl_opts |= 2223 cpu_to_le16(IPV6_ADDOPT_MLD_EN); 2224 else 2225 init_fw_cb->ipv6_addtl_opts &= 2226 cpu_to_le16(~IPV6_ADDOPT_MLD_EN); 2227 break; 2228 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 2229 if (iface_param->iface_num & 0x1) 2230 break; 2231 init_fw_cb->ipv6_flow_lbl = 2232 cpu_to_le16(*(uint16_t *)iface_param->value); 2233 break; 2234 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 2235 if (iface_param->iface_num & 0x1) 2236 break; 2237 init_fw_cb->ipv6_traffic_class = iface_param->value[0]; 2238 break; 2239 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 2240 if (iface_param->iface_num & 0x1) 2241 break; 2242 init_fw_cb->ipv6_hop_limit = iface_param->value[0]; 2243 break; 2244 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 2245 if (iface_param->iface_num & 0x1) 2246 break; 2247 init_fw_cb->ipv6_nd_reach_time = 2248 cpu_to_le32(*(uint32_t *)iface_param->value); 2249 break; 2250 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 2251 if (iface_param->iface_num & 0x1) 2252 break; 2253 init_fw_cb->ipv6_nd_rexmit_timer = 2254 cpu_to_le32(*(uint32_t *)iface_param->value); 2255 break; 2256 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 2257 if (iface_param->iface_num & 0x1) 2258 break; 2259 init_fw_cb->ipv6_nd_stale_timeout = 2260 cpu_to_le32(*(uint32_t *)iface_param->value); 2261 break; 2262 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 2263 if (iface_param->iface_num & 0x1) 2264 break; 2265 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; 2266 break; 2267 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 2268 if (iface_param->iface_num & 0x1) 2269 break; 2270 init_fw_cb->ipv6_gw_advrt_mtu = 2271 cpu_to_le32(*(uint32_t *)iface_param->value); 2272 break; 2273 default: 2274 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 2275 iface_param->param); 2276 break; 2277 } 2278 } 2279 2280 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 2281 struct iscsi_iface_param_info *iface_param, 2282 struct addr_ctrl_blk *init_fw_cb) 2283 { 2284 switch (iface_param->param) { 2285 case ISCSI_NET_PARAM_IPV4_ADDR: 2286 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 2287 sizeof(init_fw_cb->ipv4_addr)); 2288 break; 2289 case ISCSI_NET_PARAM_IPV4_SUBNET: 2290 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 2291 sizeof(init_fw_cb->ipv4_subnet)); 2292 break; 2293 case ISCSI_NET_PARAM_IPV4_GW: 2294 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 2295 sizeof(init_fw_cb->ipv4_gw_addr)); 2296 break; 2297 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 2298 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 2299 init_fw_cb->ipv4_tcp_opts |= 2300 cpu_to_le16(TCPOPT_DHCP_ENABLE); 2301 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 2302 init_fw_cb->ipv4_tcp_opts &= 2303 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 2304 else 2305 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 2306 break; 2307 case ISCSI_NET_PARAM_IFACE_ENABLE: 2308 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2309 init_fw_cb->ipv4_ip_opts |= 2310 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 2311 qla4xxx_create_ipv4_iface(ha); 2312 } else { 2313 init_fw_cb->ipv4_ip_opts &= 2314 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 2315 0xFFFF); 2316 qla4xxx_destroy_ipv4_iface(ha); 2317 } 2318 break; 2319 case ISCSI_NET_PARAM_VLAN_TAG: 2320 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 2321 break; 2322 init_fw_cb->ipv4_vlan_tag = 2323 cpu_to_be16(*(uint16_t *)iface_param->value); 2324 break; 2325 case ISCSI_NET_PARAM_VLAN_ENABLED: 2326 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2327 init_fw_cb->ipv4_ip_opts |= 2328 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 2329 else 2330 init_fw_cb->ipv4_ip_opts &= 2331 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 2332 break; 2333 case ISCSI_NET_PARAM_MTU: 2334 init_fw_cb->eth_mtu_size = 2335 cpu_to_le16(*(uint16_t *)iface_param->value); 2336 break; 2337 case ISCSI_NET_PARAM_PORT: 2338 init_fw_cb->ipv4_port = 2339 cpu_to_le16(*(uint16_t *)iface_param->value); 2340 break; 2341 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2342 if (iface_param->iface_num & 0x1) 2343 break; 2344 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2345 init_fw_cb->ipv4_tcp_opts |= 2346 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); 2347 else 2348 init_fw_cb->ipv4_tcp_opts &= 2349 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE & 2350 0xFFFF); 2351 break; 2352 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2353 if (iface_param->iface_num & 0x1) 2354 break; 2355 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2356 init_fw_cb->ipv4_tcp_opts |= 2357 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE); 2358 else 2359 init_fw_cb->ipv4_tcp_opts &= 2360 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); 2361 break; 2362 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2363 if (iface_param->iface_num & 0x1) 2364 break; 2365 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2366 init_fw_cb->ipv4_tcp_opts |= 2367 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); 2368 else 2369 init_fw_cb->ipv4_tcp_opts &= 2370 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); 2371 break; 2372 case ISCSI_NET_PARAM_TCP_WSF: 2373 if (iface_param->iface_num & 0x1) 2374 break; 2375 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; 2376 break; 2377 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2378 if (iface_param->iface_num & 0x1) 2379 break; 2380 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); 2381 init_fw_cb->ipv4_tcp_opts |= 2382 cpu_to_le16((iface_param->value[0] << 1) & 2383 TCPOPT_TIMER_SCALE); 2384 break; 2385 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2386 if (iface_param->iface_num & 0x1) 2387 break; 2388 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2389 init_fw_cb->ipv4_tcp_opts |= 2390 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); 2391 else 2392 init_fw_cb->ipv4_tcp_opts &= 2393 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); 2394 break; 2395 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 2396 if (iface_param->iface_num & 0x1) 2397 break; 2398 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2399 init_fw_cb->ipv4_tcp_opts |= 2400 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); 2401 else 2402 init_fw_cb->ipv4_tcp_opts &= 2403 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); 2404 break; 2405 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 2406 if (iface_param->iface_num & 0x1) 2407 break; 2408 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2409 init_fw_cb->ipv4_tcp_opts |= 2410 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); 2411 else 2412 init_fw_cb->ipv4_tcp_opts &= 2413 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); 2414 break; 2415 case ISCSI_NET_PARAM_IPV4_TOS_EN: 2416 if (iface_param->iface_num & 0x1) 2417 break; 2418 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2419 init_fw_cb->ipv4_ip_opts |= 2420 cpu_to_le16(IPOPT_IPV4_TOS_EN); 2421 else 2422 init_fw_cb->ipv4_ip_opts &= 2423 cpu_to_le16(~IPOPT_IPV4_TOS_EN); 2424 break; 2425 case ISCSI_NET_PARAM_IPV4_TOS: 2426 if (iface_param->iface_num & 0x1) 2427 break; 2428 init_fw_cb->ipv4_tos = iface_param->value[0]; 2429 break; 2430 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 2431 if (iface_param->iface_num & 0x1) 2432 break; 2433 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2434 init_fw_cb->ipv4_ip_opts |= 2435 cpu_to_le16(IPOPT_GRAT_ARP_EN); 2436 else 2437 init_fw_cb->ipv4_ip_opts &= 2438 cpu_to_le16(~IPOPT_GRAT_ARP_EN); 2439 break; 2440 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 2441 if (iface_param->iface_num & 0x1) 2442 break; 2443 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2444 init_fw_cb->ipv4_ip_opts |= 2445 cpu_to_le16(IPOPT_ALT_CID_EN); 2446 else 2447 init_fw_cb->ipv4_ip_opts &= 2448 cpu_to_le16(~IPOPT_ALT_CID_EN); 2449 break; 2450 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 2451 if (iface_param->iface_num & 0x1) 2452 break; 2453 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, 2454 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); 2455 init_fw_cb->ipv4_dhcp_alt_cid_len = 2456 strlen(init_fw_cb->ipv4_dhcp_alt_cid); 2457 break; 2458 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 2459 if (iface_param->iface_num & 0x1) 2460 break; 2461 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2462 init_fw_cb->ipv4_ip_opts |= 2463 cpu_to_le16(IPOPT_REQ_VID_EN); 2464 else 2465 init_fw_cb->ipv4_ip_opts &= 2466 cpu_to_le16(~IPOPT_REQ_VID_EN); 2467 break; 2468 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 2469 if (iface_param->iface_num & 0x1) 2470 break; 2471 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2472 init_fw_cb->ipv4_ip_opts |= 2473 cpu_to_le16(IPOPT_USE_VID_EN); 2474 else 2475 init_fw_cb->ipv4_ip_opts &= 2476 cpu_to_le16(~IPOPT_USE_VID_EN); 2477 break; 2478 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 2479 if (iface_param->iface_num & 0x1) 2480 break; 2481 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, 2482 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); 2483 init_fw_cb->ipv4_dhcp_vid_len = 2484 strlen(init_fw_cb->ipv4_dhcp_vid); 2485 break; 2486 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 2487 if (iface_param->iface_num & 0x1) 2488 break; 2489 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2490 init_fw_cb->ipv4_ip_opts |= 2491 cpu_to_le16(IPOPT_LEARN_IQN_EN); 2492 else 2493 init_fw_cb->ipv4_ip_opts &= 2494 cpu_to_le16(~IPOPT_LEARN_IQN_EN); 2495 break; 2496 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 2497 if (iface_param->iface_num & 0x1) 2498 break; 2499 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2500 init_fw_cb->ipv4_ip_opts |= 2501 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); 2502 else 2503 init_fw_cb->ipv4_ip_opts &= 2504 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); 2505 break; 2506 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 2507 if (iface_param->iface_num & 0x1) 2508 break; 2509 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2510 init_fw_cb->ipv4_ip_opts |= 2511 cpu_to_le16(IPOPT_IN_FORWARD_EN); 2512 else 2513 init_fw_cb->ipv4_ip_opts &= 2514 cpu_to_le16(~IPOPT_IN_FORWARD_EN); 2515 break; 2516 case ISCSI_NET_PARAM_REDIRECT_EN: 2517 if (iface_param->iface_num & 0x1) 2518 break; 2519 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2520 init_fw_cb->ipv4_ip_opts |= 2521 cpu_to_le16(IPOPT_ARP_REDIRECT_EN); 2522 else 2523 init_fw_cb->ipv4_ip_opts &= 2524 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); 2525 break; 2526 case ISCSI_NET_PARAM_IPV4_TTL: 2527 if (iface_param->iface_num & 0x1) 2528 break; 2529 init_fw_cb->ipv4_ttl = iface_param->value[0]; 2530 break; 2531 default: 2532 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 2533 iface_param->param); 2534 break; 2535 } 2536 } 2537 2538 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, 2539 struct iscsi_iface_param_info *iface_param, 2540 struct addr_ctrl_blk *init_fw_cb) 2541 { 2542 switch (iface_param->param) { 2543 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 2544 if (iface_param->iface_num & 0x1) 2545 break; 2546 init_fw_cb->def_timeout = 2547 cpu_to_le16(*(uint16_t *)iface_param->value); 2548 break; 2549 case ISCSI_IFACE_PARAM_HDRDGST_EN: 2550 if (iface_param->iface_num & 0x1) 2551 break; 2552 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2553 init_fw_cb->iscsi_opts |= 2554 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); 2555 else 2556 init_fw_cb->iscsi_opts &= 2557 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); 2558 break; 2559 case ISCSI_IFACE_PARAM_DATADGST_EN: 2560 if (iface_param->iface_num & 0x1) 2561 break; 2562 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2563 init_fw_cb->iscsi_opts |= 2564 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); 2565 else 2566 init_fw_cb->iscsi_opts &= 2567 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); 2568 break; 2569 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 2570 if (iface_param->iface_num & 0x1) 2571 break; 2572 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2573 init_fw_cb->iscsi_opts |= 2574 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); 2575 else 2576 init_fw_cb->iscsi_opts &= 2577 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); 2578 break; 2579 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 2580 if (iface_param->iface_num & 0x1) 2581 break; 2582 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2583 init_fw_cb->iscsi_opts |= 2584 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); 2585 else 2586 init_fw_cb->iscsi_opts &= 2587 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); 2588 break; 2589 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 2590 if (iface_param->iface_num & 0x1) 2591 break; 2592 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2593 init_fw_cb->iscsi_opts |= 2594 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); 2595 else 2596 init_fw_cb->iscsi_opts &= 2597 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); 2598 break; 2599 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 2600 if (iface_param->iface_num & 0x1) 2601 break; 2602 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2603 init_fw_cb->iscsi_opts |= 2604 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); 2605 else 2606 init_fw_cb->iscsi_opts &= 2607 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); 2608 break; 2609 case ISCSI_IFACE_PARAM_ERL: 2610 if (iface_param->iface_num & 0x1) 2611 break; 2612 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); 2613 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & 2614 ISCSIOPTS_ERL); 2615 break; 2616 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 2617 if (iface_param->iface_num & 0x1) 2618 break; 2619 init_fw_cb->iscsi_max_pdu_size = 2620 cpu_to_le32(*(uint32_t *)iface_param->value) / 2621 BYTE_UNITS; 2622 break; 2623 case ISCSI_IFACE_PARAM_FIRST_BURST: 2624 if (iface_param->iface_num & 0x1) 2625 break; 2626 init_fw_cb->iscsi_fburst_len = 2627 cpu_to_le32(*(uint32_t *)iface_param->value) / 2628 BYTE_UNITS; 2629 break; 2630 case ISCSI_IFACE_PARAM_MAX_R2T: 2631 if (iface_param->iface_num & 0x1) 2632 break; 2633 init_fw_cb->iscsi_max_outstnd_r2t = 2634 cpu_to_le16(*(uint16_t *)iface_param->value); 2635 break; 2636 case ISCSI_IFACE_PARAM_MAX_BURST: 2637 if (iface_param->iface_num & 0x1) 2638 break; 2639 init_fw_cb->iscsi_max_burst_len = 2640 cpu_to_le32(*(uint32_t *)iface_param->value) / 2641 BYTE_UNITS; 2642 break; 2643 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 2644 if (iface_param->iface_num & 0x1) 2645 break; 2646 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2647 init_fw_cb->iscsi_opts |= 2648 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); 2649 else 2650 init_fw_cb->iscsi_opts &= 2651 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); 2652 break; 2653 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 2654 if (iface_param->iface_num & 0x1) 2655 break; 2656 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2657 init_fw_cb->iscsi_opts |= 2658 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); 2659 else 2660 init_fw_cb->iscsi_opts &= 2661 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); 2662 break; 2663 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 2664 if (iface_param->iface_num & 0x1) 2665 break; 2666 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2667 init_fw_cb->iscsi_opts |= 2668 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); 2669 else 2670 init_fw_cb->iscsi_opts &= 2671 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); 2672 break; 2673 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 2674 if (iface_param->iface_num & 0x1) 2675 break; 2676 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2677 init_fw_cb->iscsi_opts |= 2678 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2679 else 2680 init_fw_cb->iscsi_opts &= 2681 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2682 break; 2683 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 2684 if (iface_param->iface_num & 0x1) 2685 break; 2686 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2687 init_fw_cb->iscsi_opts |= 2688 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2689 else 2690 init_fw_cb->iscsi_opts &= 2691 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2692 break; 2693 default: 2694 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", 2695 iface_param->param); 2696 break; 2697 } 2698 } 2699 2700 static void 2701 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 2702 { 2703 struct addr_ctrl_blk_def *acb; 2704 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 2705 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 2706 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 2707 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 2708 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 2709 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 2710 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 2711 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 2712 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 2713 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 2714 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 2715 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 2716 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 2717 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 2718 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 2719 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 2720 } 2721 2722 static int 2723 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 2724 { 2725 struct scsi_qla_host *ha = to_qla_host(shost); 2726 int rval = 0; 2727 struct iscsi_iface_param_info *iface_param = NULL; 2728 struct addr_ctrl_blk *init_fw_cb = NULL; 2729 dma_addr_t init_fw_cb_dma; 2730 uint32_t mbox_cmd[MBOX_REG_COUNT]; 2731 uint32_t mbox_sts[MBOX_REG_COUNT]; 2732 uint32_t rem = len; 2733 struct nlattr *attr; 2734 2735 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 2736 sizeof(struct addr_ctrl_blk), 2737 &init_fw_cb_dma, GFP_KERNEL); 2738 if (!init_fw_cb) { 2739 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 2740 __func__); 2741 return -ENOMEM; 2742 } 2743 2744 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 2745 memset(&mbox_sts, 0, sizeof(mbox_sts)); 2746 2747 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 2748 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 2749 rval = -EIO; 2750 goto exit_init_fw_cb; 2751 } 2752 2753 nla_for_each_attr(attr, data, len, rem) { 2754 iface_param = nla_data(attr); 2755 2756 if (iface_param->param_type == ISCSI_NET_PARAM) { 2757 switch (iface_param->iface_type) { 2758 case ISCSI_IFACE_TYPE_IPV4: 2759 switch (iface_param->iface_num) { 2760 case 0: 2761 qla4xxx_set_ipv4(ha, iface_param, 2762 init_fw_cb); 2763 break; 2764 default: 2765 /* Cannot have more than one IPv4 interface */ 2766 ql4_printk(KERN_ERR, ha, 2767 "Invalid IPv4 iface number = %d\n", 2768 iface_param->iface_num); 2769 break; 2770 } 2771 break; 2772 case ISCSI_IFACE_TYPE_IPV6: 2773 switch (iface_param->iface_num) { 2774 case 0: 2775 case 1: 2776 qla4xxx_set_ipv6(ha, iface_param, 2777 init_fw_cb); 2778 break; 2779 default: 2780 /* Cannot have more than two IPv6 interface */ 2781 ql4_printk(KERN_ERR, ha, 2782 "Invalid IPv6 iface number = %d\n", 2783 iface_param->iface_num); 2784 break; 2785 } 2786 break; 2787 default: 2788 ql4_printk(KERN_ERR, ha, 2789 "Invalid iface type\n"); 2790 break; 2791 } 2792 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { 2793 qla4xxx_set_iscsi_param(ha, iface_param, 2794 init_fw_cb); 2795 } else { 2796 continue; 2797 } 2798 } 2799 2800 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 2801 2802 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 2803 sizeof(struct addr_ctrl_blk), 2804 FLASH_OPT_RMW_COMMIT); 2805 if (rval != QLA_SUCCESS) { 2806 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 2807 __func__); 2808 rval = -EIO; 2809 goto exit_init_fw_cb; 2810 } 2811 2812 rval = qla4xxx_disable_acb(ha); 2813 if (rval != QLA_SUCCESS) { 2814 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 2815 __func__); 2816 rval = -EIO; 2817 goto exit_init_fw_cb; 2818 } 2819 2820 wait_for_completion_timeout(&ha->disable_acb_comp, 2821 DISABLE_ACB_TOV * HZ); 2822 2823 qla4xxx_initcb_to_acb(init_fw_cb); 2824 2825 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 2826 if (rval != QLA_SUCCESS) { 2827 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 2828 __func__); 2829 rval = -EIO; 2830 goto exit_init_fw_cb; 2831 } 2832 2833 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2834 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 2835 init_fw_cb_dma); 2836 2837 exit_init_fw_cb: 2838 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 2839 init_fw_cb, init_fw_cb_dma); 2840 2841 return rval; 2842 } 2843 2844 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 2845 enum iscsi_param param, char *buf) 2846 { 2847 struct iscsi_session *sess = cls_sess->dd_data; 2848 struct ddb_entry *ddb_entry = sess->dd_data; 2849 struct scsi_qla_host *ha = ddb_entry->ha; 2850 struct iscsi_cls_conn *cls_conn = ddb_entry->conn; 2851 struct ql4_chap_table chap_tbl; 2852 int rval, len; 2853 uint16_t idx; 2854 2855 memset(&chap_tbl, 0, sizeof(chap_tbl)); 2856 switch (param) { 2857 case ISCSI_PARAM_CHAP_IN_IDX: 2858 rval = qla4xxx_get_chap_index(ha, sess->username_in, 2859 sess->password_in, BIDI_CHAP, 2860 &idx); 2861 if (rval) 2862 len = sprintf(buf, "\n"); 2863 else 2864 len = sprintf(buf, "%hu\n", idx); 2865 break; 2866 case ISCSI_PARAM_CHAP_OUT_IDX: 2867 if (ddb_entry->ddb_type == FLASH_DDB) { 2868 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 2869 idx = ddb_entry->chap_tbl_idx; 2870 rval = QLA_SUCCESS; 2871 } else { 2872 rval = QLA_ERROR; 2873 } 2874 } else { 2875 rval = qla4xxx_get_chap_index(ha, sess->username, 2876 sess->password, 2877 LOCAL_CHAP, &idx); 2878 } 2879 if (rval) 2880 len = sprintf(buf, "\n"); 2881 else 2882 len = sprintf(buf, "%hu\n", idx); 2883 break; 2884 case ISCSI_PARAM_USERNAME: 2885 case ISCSI_PARAM_PASSWORD: 2886 /* First, populate session username and password for FLASH DDB, 2887 * if not already done. This happens when session login fails 2888 * for a FLASH DDB. 2889 */ 2890 if (ddb_entry->ddb_type == FLASH_DDB && 2891 ddb_entry->chap_tbl_idx != INVALID_ENTRY && 2892 !sess->username && !sess->password) { 2893 idx = ddb_entry->chap_tbl_idx; 2894 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 2895 chap_tbl.secret, 2896 idx); 2897 if (!rval) { 2898 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 2899 (char *)chap_tbl.name, 2900 strlen((char *)chap_tbl.name)); 2901 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 2902 (char *)chap_tbl.secret, 2903 chap_tbl.secret_len); 2904 } 2905 } 2906 fallthrough; 2907 default: 2908 return iscsi_session_get_param(cls_sess, param, buf); 2909 } 2910 2911 return len; 2912 } 2913 2914 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 2915 enum iscsi_param param, char *buf) 2916 { 2917 struct iscsi_conn *conn; 2918 struct qla_conn *qla_conn; 2919 struct sockaddr *dst_addr; 2920 2921 conn = cls_conn->dd_data; 2922 qla_conn = conn->dd_data; 2923 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 2924 2925 switch (param) { 2926 case ISCSI_PARAM_CONN_PORT: 2927 case ISCSI_PARAM_CONN_ADDRESS: 2928 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 2929 dst_addr, param, buf); 2930 default: 2931 return iscsi_conn_get_param(cls_conn, param, buf); 2932 } 2933 } 2934 2935 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 2936 { 2937 uint32_t mbx_sts = 0; 2938 uint16_t tmp_ddb_index; 2939 int ret; 2940 2941 get_ddb_index: 2942 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 2943 2944 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 2945 DEBUG2(ql4_printk(KERN_INFO, ha, 2946 "Free DDB index not available\n")); 2947 ret = QLA_ERROR; 2948 goto exit_get_ddb_index; 2949 } 2950 2951 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 2952 goto get_ddb_index; 2953 2954 DEBUG2(ql4_printk(KERN_INFO, ha, 2955 "Found a free DDB index at %d\n", tmp_ddb_index)); 2956 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 2957 if (ret == QLA_ERROR) { 2958 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 2959 ql4_printk(KERN_INFO, ha, 2960 "DDB index = %d not available trying next\n", 2961 tmp_ddb_index); 2962 goto get_ddb_index; 2963 } 2964 DEBUG2(ql4_printk(KERN_INFO, ha, 2965 "Free FW DDB not available\n")); 2966 } 2967 2968 *ddb_index = tmp_ddb_index; 2969 2970 exit_get_ddb_index: 2971 return ret; 2972 } 2973 2974 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 2975 struct ddb_entry *ddb_entry, 2976 char *existing_ipaddr, 2977 char *user_ipaddr) 2978 { 2979 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 2980 char formatted_ipaddr[DDB_IPADDR_LEN]; 2981 int status = QLA_SUCCESS, ret = 0; 2982 2983 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 2984 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2985 '\0', NULL); 2986 if (ret == 0) { 2987 status = QLA_ERROR; 2988 goto out_match; 2989 } 2990 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 2991 } else { 2992 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2993 '\0', NULL); 2994 if (ret == 0) { 2995 status = QLA_ERROR; 2996 goto out_match; 2997 } 2998 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 2999 } 3000 3001 if (strcmp(existing_ipaddr, formatted_ipaddr)) 3002 status = QLA_ERROR; 3003 3004 out_match: 3005 return status; 3006 } 3007 3008 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 3009 struct iscsi_cls_conn *cls_conn) 3010 { 3011 int idx = 0, max_ddbs, rval; 3012 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3013 struct iscsi_session *sess, *existing_sess; 3014 struct iscsi_conn *conn, *existing_conn; 3015 struct ddb_entry *ddb_entry; 3016 3017 sess = cls_sess->dd_data; 3018 conn = cls_conn->dd_data; 3019 3020 if (sess->targetname == NULL || 3021 conn->persistent_address == NULL || 3022 conn->persistent_port == 0) 3023 return QLA_ERROR; 3024 3025 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 3026 MAX_DEV_DB_ENTRIES; 3027 3028 for (idx = 0; idx < max_ddbs; idx++) { 3029 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 3030 if (ddb_entry == NULL) 3031 continue; 3032 3033 if (ddb_entry->ddb_type != FLASH_DDB) 3034 continue; 3035 3036 existing_sess = ddb_entry->sess->dd_data; 3037 existing_conn = ddb_entry->conn->dd_data; 3038 3039 if (existing_sess->targetname == NULL || 3040 existing_conn->persistent_address == NULL || 3041 existing_conn->persistent_port == 0) 3042 continue; 3043 3044 DEBUG2(ql4_printk(KERN_INFO, ha, 3045 "IQN = %s User IQN = %s\n", 3046 existing_sess->targetname, 3047 sess->targetname)); 3048 3049 DEBUG2(ql4_printk(KERN_INFO, ha, 3050 "IP = %s User IP = %s\n", 3051 existing_conn->persistent_address, 3052 conn->persistent_address)); 3053 3054 DEBUG2(ql4_printk(KERN_INFO, ha, 3055 "Port = %d User Port = %d\n", 3056 existing_conn->persistent_port, 3057 conn->persistent_port)); 3058 3059 if (strcmp(existing_sess->targetname, sess->targetname)) 3060 continue; 3061 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 3062 existing_conn->persistent_address, 3063 conn->persistent_address); 3064 if (rval == QLA_ERROR) 3065 continue; 3066 if (existing_conn->persistent_port != conn->persistent_port) 3067 continue; 3068 break; 3069 } 3070 3071 if (idx == max_ddbs) 3072 return QLA_ERROR; 3073 3074 DEBUG2(ql4_printk(KERN_INFO, ha, 3075 "Match found in fwdb sessions\n")); 3076 return QLA_SUCCESS; 3077 } 3078 3079 static struct iscsi_cls_session * 3080 qla4xxx_session_create(struct iscsi_endpoint *ep, 3081 uint16_t cmds_max, uint16_t qdepth, 3082 uint32_t initial_cmdsn) 3083 { 3084 struct iscsi_cls_session *cls_sess; 3085 struct scsi_qla_host *ha; 3086 struct qla_endpoint *qla_ep; 3087 struct ddb_entry *ddb_entry; 3088 uint16_t ddb_index; 3089 struct iscsi_session *sess; 3090 int ret; 3091 3092 if (!ep) { 3093 printk(KERN_ERR "qla4xxx: missing ep.\n"); 3094 return NULL; 3095 } 3096 3097 qla_ep = ep->dd_data; 3098 ha = to_qla_host(qla_ep->host); 3099 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3100 ha->host_no)); 3101 3102 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 3103 if (ret == QLA_ERROR) 3104 return NULL; 3105 3106 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 3107 cmds_max, sizeof(struct ddb_entry), 3108 sizeof(struct ql4_task_data), 3109 initial_cmdsn, ddb_index); 3110 if (!cls_sess) 3111 return NULL; 3112 3113 sess = cls_sess->dd_data; 3114 ddb_entry = sess->dd_data; 3115 ddb_entry->fw_ddb_index = ddb_index; 3116 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 3117 ddb_entry->ha = ha; 3118 ddb_entry->sess = cls_sess; 3119 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 3120 ddb_entry->ddb_change = qla4xxx_ddb_change; 3121 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); 3122 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 3123 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 3124 ha->tot_ddbs++; 3125 3126 return cls_sess; 3127 } 3128 3129 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 3130 { 3131 struct iscsi_session *sess; 3132 struct ddb_entry *ddb_entry; 3133 struct scsi_qla_host *ha; 3134 unsigned long flags, wtime; 3135 struct dev_db_entry *fw_ddb_entry = NULL; 3136 dma_addr_t fw_ddb_entry_dma; 3137 uint32_t ddb_state; 3138 int ret; 3139 3140 sess = cls_sess->dd_data; 3141 ddb_entry = sess->dd_data; 3142 ha = ddb_entry->ha; 3143 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3144 ha->host_no)); 3145 3146 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3147 &fw_ddb_entry_dma, GFP_KERNEL); 3148 if (!fw_ddb_entry) { 3149 ql4_printk(KERN_ERR, ha, 3150 "%s: Unable to allocate dma buffer\n", __func__); 3151 goto destroy_session; 3152 } 3153 3154 wtime = jiffies + (HZ * LOGOUT_TOV); 3155 do { 3156 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 3157 fw_ddb_entry, fw_ddb_entry_dma, 3158 NULL, NULL, &ddb_state, NULL, 3159 NULL, NULL); 3160 if (ret == QLA_ERROR) 3161 goto destroy_session; 3162 3163 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 3164 (ddb_state == DDB_DS_SESSION_FAILED)) 3165 goto destroy_session; 3166 3167 schedule_timeout_uninterruptible(HZ); 3168 } while ((time_after(wtime, jiffies))); 3169 3170 destroy_session: 3171 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 3172 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) 3173 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 3174 spin_lock_irqsave(&ha->hardware_lock, flags); 3175 qla4xxx_free_ddb(ha, ddb_entry); 3176 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3177 3178 iscsi_session_teardown(cls_sess); 3179 3180 if (fw_ddb_entry) 3181 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3182 fw_ddb_entry, fw_ddb_entry_dma); 3183 } 3184 3185 static struct iscsi_cls_conn * 3186 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 3187 { 3188 struct iscsi_cls_conn *cls_conn; 3189 struct iscsi_session *sess; 3190 struct ddb_entry *ddb_entry; 3191 struct scsi_qla_host *ha; 3192 3193 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 3194 conn_idx); 3195 if (!cls_conn) { 3196 pr_info("%s: Can not create connection for conn_idx = %u\n", 3197 __func__, conn_idx); 3198 return NULL; 3199 } 3200 3201 sess = cls_sess->dd_data; 3202 ddb_entry = sess->dd_data; 3203 ddb_entry->conn = cls_conn; 3204 3205 ha = ddb_entry->ha; 3206 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__, 3207 conn_idx)); 3208 return cls_conn; 3209 } 3210 3211 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 3212 struct iscsi_cls_conn *cls_conn, 3213 uint64_t transport_fd, int is_leading) 3214 { 3215 struct iscsi_conn *conn; 3216 struct qla_conn *qla_conn; 3217 struct iscsi_endpoint *ep; 3218 struct ddb_entry *ddb_entry; 3219 struct scsi_qla_host *ha; 3220 struct iscsi_session *sess; 3221 3222 sess = cls_session->dd_data; 3223 ddb_entry = sess->dd_data; 3224 ha = ddb_entry->ha; 3225 3226 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3227 cls_session->sid, cls_conn->cid)); 3228 3229 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 3230 return -EINVAL; 3231 ep = iscsi_lookup_endpoint(transport_fd); 3232 if (!ep) 3233 return -EINVAL; 3234 conn = cls_conn->dd_data; 3235 qla_conn = conn->dd_data; 3236 qla_conn->qla_ep = ep->dd_data; 3237 return 0; 3238 } 3239 3240 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3241 { 3242 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3243 struct iscsi_session *sess; 3244 struct ddb_entry *ddb_entry; 3245 struct scsi_qla_host *ha; 3246 struct dev_db_entry *fw_ddb_entry = NULL; 3247 dma_addr_t fw_ddb_entry_dma; 3248 uint32_t mbx_sts = 0; 3249 int ret = 0; 3250 int status = QLA_SUCCESS; 3251 3252 sess = cls_sess->dd_data; 3253 ddb_entry = sess->dd_data; 3254 ha = ddb_entry->ha; 3255 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3256 cls_sess->sid, cls_conn->cid)); 3257 3258 /* Check if we have matching FW DDB, if yes then do not 3259 * login to this target. This could cause target to logout previous 3260 * connection 3261 */ 3262 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3263 if (ret == QLA_SUCCESS) { 3264 ql4_printk(KERN_INFO, ha, 3265 "Session already exist in FW.\n"); 3266 ret = -EEXIST; 3267 goto exit_conn_start; 3268 } 3269 3270 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3271 &fw_ddb_entry_dma, GFP_KERNEL); 3272 if (!fw_ddb_entry) { 3273 ql4_printk(KERN_ERR, ha, 3274 "%s: Unable to allocate dma buffer\n", __func__); 3275 ret = -ENOMEM; 3276 goto exit_conn_start; 3277 } 3278 3279 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3280 if (ret) { 3281 /* If iscsid is stopped and started then no need to do 3282 * set param again since ddb state will be already 3283 * active and FW does not allow set ddb to an 3284 * active session. 3285 */ 3286 if (mbx_sts) 3287 if (ddb_entry->fw_ddb_device_state == 3288 DDB_DS_SESSION_ACTIVE) { 3289 ddb_entry->unblock_sess(ddb_entry->sess); 3290 goto exit_set_param; 3291 } 3292 3293 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3294 __func__, ddb_entry->fw_ddb_index); 3295 goto exit_conn_start; 3296 } 3297 3298 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3299 if (status == QLA_ERROR) { 3300 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3301 sess->targetname); 3302 ret = -EINVAL; 3303 goto exit_conn_start; 3304 } 3305 3306 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3307 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3308 3309 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3310 ddb_entry->fw_ddb_device_state)); 3311 3312 exit_set_param: 3313 ret = 0; 3314 3315 exit_conn_start: 3316 if (fw_ddb_entry) 3317 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3318 fw_ddb_entry, fw_ddb_entry_dma); 3319 return ret; 3320 } 3321 3322 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3323 { 3324 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3325 struct iscsi_session *sess; 3326 struct scsi_qla_host *ha; 3327 struct ddb_entry *ddb_entry; 3328 int options; 3329 3330 sess = cls_sess->dd_data; 3331 ddb_entry = sess->dd_data; 3332 ha = ddb_entry->ha; 3333 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, 3334 cls_conn->cid)); 3335 3336 options = LOGOUT_OPTION_CLOSE_SESSION; 3337 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3338 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3339 } 3340 3341 static void qla4xxx_task_work(struct work_struct *wdata) 3342 { 3343 struct ql4_task_data *task_data; 3344 struct scsi_qla_host *ha; 3345 struct passthru_status *sts; 3346 struct iscsi_task *task; 3347 struct iscsi_hdr *hdr; 3348 uint8_t *data; 3349 uint32_t data_len; 3350 struct iscsi_conn *conn; 3351 int hdr_len; 3352 itt_t itt; 3353 3354 task_data = container_of(wdata, struct ql4_task_data, task_work); 3355 ha = task_data->ha; 3356 task = task_data->task; 3357 sts = &task_data->sts; 3358 hdr_len = sizeof(struct iscsi_hdr); 3359 3360 DEBUG3(printk(KERN_INFO "Status returned\n")); 3361 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3362 DEBUG3(printk(KERN_INFO "Response buffer")); 3363 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3364 3365 conn = task->conn; 3366 3367 switch (sts->completionStatus) { 3368 case PASSTHRU_STATUS_COMPLETE: 3369 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3370 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3371 itt = sts->handle; 3372 hdr->itt = itt; 3373 data = task_data->resp_buffer + hdr_len; 3374 data_len = task_data->resp_len - hdr_len; 3375 iscsi_complete_pdu(conn, hdr, data, data_len); 3376 break; 3377 default: 3378 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3379 sts->completionStatus); 3380 break; 3381 } 3382 return; 3383 } 3384 3385 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3386 { 3387 struct ql4_task_data *task_data; 3388 struct iscsi_session *sess; 3389 struct ddb_entry *ddb_entry; 3390 struct scsi_qla_host *ha; 3391 int hdr_len; 3392 3393 sess = task->conn->session; 3394 ddb_entry = sess->dd_data; 3395 ha = ddb_entry->ha; 3396 task_data = task->dd_data; 3397 memset(task_data, 0, sizeof(struct ql4_task_data)); 3398 3399 if (task->sc) { 3400 ql4_printk(KERN_INFO, ha, 3401 "%s: SCSI Commands not implemented\n", __func__); 3402 return -EINVAL; 3403 } 3404 3405 hdr_len = sizeof(struct iscsi_hdr); 3406 task_data->ha = ha; 3407 task_data->task = task; 3408 3409 if (task->data_count) { 3410 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3411 task->data_count, 3412 DMA_TO_DEVICE); 3413 } 3414 3415 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3416 __func__, task->conn->max_recv_dlength, hdr_len)); 3417 3418 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3419 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3420 task_data->resp_len, 3421 &task_data->resp_dma, 3422 GFP_ATOMIC); 3423 if (!task_data->resp_buffer) 3424 goto exit_alloc_pdu; 3425 3426 task_data->req_len = task->data_count + hdr_len; 3427 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3428 task_data->req_len, 3429 &task_data->req_dma, 3430 GFP_ATOMIC); 3431 if (!task_data->req_buffer) 3432 goto exit_alloc_pdu; 3433 3434 task->hdr = task_data->req_buffer; 3435 3436 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3437 3438 return 0; 3439 3440 exit_alloc_pdu: 3441 if (task_data->resp_buffer) 3442 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3443 task_data->resp_buffer, task_data->resp_dma); 3444 3445 if (task_data->req_buffer) 3446 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3447 task_data->req_buffer, task_data->req_dma); 3448 return -ENOMEM; 3449 } 3450 3451 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3452 { 3453 struct ql4_task_data *task_data; 3454 struct iscsi_session *sess; 3455 struct ddb_entry *ddb_entry; 3456 struct scsi_qla_host *ha; 3457 int hdr_len; 3458 3459 hdr_len = sizeof(struct iscsi_hdr); 3460 sess = task->conn->session; 3461 ddb_entry = sess->dd_data; 3462 ha = ddb_entry->ha; 3463 task_data = task->dd_data; 3464 3465 if (task->data_count) { 3466 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3467 task->data_count, DMA_TO_DEVICE); 3468 } 3469 3470 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3471 __func__, task->conn->max_recv_dlength, hdr_len)); 3472 3473 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3474 task_data->resp_buffer, task_data->resp_dma); 3475 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3476 task_data->req_buffer, task_data->req_dma); 3477 return; 3478 } 3479 3480 static int qla4xxx_task_xmit(struct iscsi_task *task) 3481 { 3482 struct scsi_cmnd *sc = task->sc; 3483 struct iscsi_session *sess = task->conn->session; 3484 struct ddb_entry *ddb_entry = sess->dd_data; 3485 struct scsi_qla_host *ha = ddb_entry->ha; 3486 3487 if (!sc) 3488 return qla4xxx_send_passthru0(task); 3489 3490 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3491 __func__); 3492 return -ENOSYS; 3493 } 3494 3495 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3496 struct iscsi_bus_flash_conn *conn, 3497 struct dev_db_entry *fw_ddb_entry) 3498 { 3499 unsigned long options = 0; 3500 int rc = 0; 3501 3502 options = le16_to_cpu(fw_ddb_entry->options); 3503 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3504 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3505 rc = iscsi_switch_str_param(&sess->portal_type, 3506 PORTAL_TYPE_IPV6); 3507 if (rc) 3508 goto exit_copy; 3509 } else { 3510 rc = iscsi_switch_str_param(&sess->portal_type, 3511 PORTAL_TYPE_IPV4); 3512 if (rc) 3513 goto exit_copy; 3514 } 3515 3516 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3517 &options); 3518 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3519 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3520 3521 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3522 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3523 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3524 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3525 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3526 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3527 &options); 3528 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3529 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3530 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3531 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3532 &options); 3533 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3534 sess->discovery_auth_optional = 3535 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3536 if (test_bit(ISCSIOPT_ERL1, &options)) 3537 sess->erl |= BIT_1; 3538 if (test_bit(ISCSIOPT_ERL0, &options)) 3539 sess->erl |= BIT_0; 3540 3541 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3542 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3543 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3544 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3545 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3546 conn->tcp_timer_scale |= BIT_3; 3547 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3548 conn->tcp_timer_scale |= BIT_2; 3549 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3550 conn->tcp_timer_scale |= BIT_1; 3551 3552 conn->tcp_timer_scale >>= 1; 3553 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3554 3555 options = le16_to_cpu(fw_ddb_entry->ip_options); 3556 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3557 3558 conn->max_recv_dlength = BYTE_UNITS * 3559 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3560 conn->max_xmit_dlength = BYTE_UNITS * 3561 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3562 sess->first_burst = BYTE_UNITS * 3563 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3564 sess->max_burst = BYTE_UNITS * 3565 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3566 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3567 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3568 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3569 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3570 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3571 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3572 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3573 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3574 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3575 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3576 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3577 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3578 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3579 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3580 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3581 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3582 3583 sess->default_taskmgmt_timeout = 3584 le16_to_cpu(fw_ddb_entry->def_timeout); 3585 conn->port = le16_to_cpu(fw_ddb_entry->port); 3586 3587 options = le16_to_cpu(fw_ddb_entry->options); 3588 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3589 if (!conn->ipaddress) { 3590 rc = -ENOMEM; 3591 goto exit_copy; 3592 } 3593 3594 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3595 if (!conn->redirect_ipaddr) { 3596 rc = -ENOMEM; 3597 goto exit_copy; 3598 } 3599 3600 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3601 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3602 3603 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3604 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3605 3606 conn->link_local_ipv6_addr = kmemdup( 3607 fw_ddb_entry->link_local_ipv6_addr, 3608 IPv6_ADDR_LEN, GFP_KERNEL); 3609 if (!conn->link_local_ipv6_addr) { 3610 rc = -ENOMEM; 3611 goto exit_copy; 3612 } 3613 } else { 3614 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3615 } 3616 3617 if (fw_ddb_entry->iscsi_name[0]) { 3618 rc = iscsi_switch_str_param(&sess->targetname, 3619 (char *)fw_ddb_entry->iscsi_name); 3620 if (rc) 3621 goto exit_copy; 3622 } 3623 3624 if (fw_ddb_entry->iscsi_alias[0]) { 3625 rc = iscsi_switch_str_param(&sess->targetalias, 3626 (char *)fw_ddb_entry->iscsi_alias); 3627 if (rc) 3628 goto exit_copy; 3629 } 3630 3631 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3632 3633 exit_copy: 3634 return rc; 3635 } 3636 3637 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3638 struct iscsi_bus_flash_conn *conn, 3639 struct dev_db_entry *fw_ddb_entry) 3640 { 3641 uint16_t options; 3642 int rc = 0; 3643 3644 options = le16_to_cpu(fw_ddb_entry->options); 3645 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3646 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3647 options |= BIT_8; 3648 else 3649 options &= ~BIT_8; 3650 3651 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3652 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3653 SET_BITVAL(sess->entry_state, options, BIT_3); 3654 fw_ddb_entry->options = cpu_to_le16(options); 3655 3656 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3657 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3658 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3659 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3660 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3661 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3662 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3663 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3664 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3665 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3666 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3667 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3668 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3669 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3670 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3671 3672 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3673 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3674 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3675 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3676 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3677 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3678 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3679 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3680 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3681 3682 options = le16_to_cpu(fw_ddb_entry->ip_options); 3683 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3684 fw_ddb_entry->ip_options = cpu_to_le16(options); 3685 3686 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3687 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3688 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3689 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3690 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3691 fw_ddb_entry->iscsi_first_burst_len = 3692 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3693 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3694 BYTE_UNITS); 3695 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3696 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3697 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3698 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3699 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3700 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3701 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3702 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3703 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3704 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3705 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3706 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3707 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3708 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3709 fw_ddb_entry->port = cpu_to_le16(conn->port); 3710 fw_ddb_entry->def_timeout = 3711 cpu_to_le16(sess->default_taskmgmt_timeout); 3712 3713 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3714 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3715 else 3716 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3717 3718 if (conn->ipaddress) 3719 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3720 sizeof(fw_ddb_entry->ip_addr)); 3721 3722 if (conn->redirect_ipaddr) 3723 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3724 sizeof(fw_ddb_entry->tgt_addr)); 3725 3726 if (conn->link_local_ipv6_addr) 3727 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3728 conn->link_local_ipv6_addr, 3729 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3730 3731 if (sess->targetname) 3732 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3733 sizeof(fw_ddb_entry->iscsi_name)); 3734 3735 if (sess->targetalias) 3736 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3737 sizeof(fw_ddb_entry->iscsi_alias)); 3738 3739 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3740 3741 return rc; 3742 } 3743 3744 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3745 struct iscsi_session *sess, 3746 struct dev_db_entry *fw_ddb_entry) 3747 { 3748 unsigned long options = 0; 3749 uint16_t ddb_link; 3750 uint16_t disc_parent; 3751 char ip_addr[DDB_IPADDR_LEN]; 3752 3753 options = le16_to_cpu(fw_ddb_entry->options); 3754 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3755 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3756 &options); 3757 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3758 3759 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3760 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3761 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3762 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3763 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3764 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3765 &options); 3766 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3767 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3768 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3769 &options); 3770 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3771 sess->discovery_auth_optional = 3772 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3773 if (test_bit(ISCSIOPT_ERL1, &options)) 3774 sess->erl |= BIT_1; 3775 if (test_bit(ISCSIOPT_ERL0, &options)) 3776 sess->erl |= BIT_0; 3777 3778 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3779 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3780 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3781 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3782 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3783 conn->tcp_timer_scale |= BIT_3; 3784 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3785 conn->tcp_timer_scale |= BIT_2; 3786 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3787 conn->tcp_timer_scale |= BIT_1; 3788 3789 conn->tcp_timer_scale >>= 1; 3790 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3791 3792 options = le16_to_cpu(fw_ddb_entry->ip_options); 3793 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3794 3795 conn->max_recv_dlength = BYTE_UNITS * 3796 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3797 conn->max_xmit_dlength = BYTE_UNITS * 3798 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3799 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3800 sess->first_burst = BYTE_UNITS * 3801 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3802 sess->max_burst = BYTE_UNITS * 3803 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3804 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3805 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3806 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3807 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3808 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3809 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3810 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3811 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3812 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3813 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3814 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3815 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3816 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3817 3818 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3819 if (ddb_link == DDB_ISNS) 3820 disc_parent = ISCSI_DISC_PARENT_ISNS; 3821 else if (ddb_link == DDB_NO_LINK) 3822 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3823 else if (ddb_link < MAX_DDB_ENTRIES) 3824 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3825 else 3826 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3827 3828 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3829 iscsi_get_discovery_parent_name(disc_parent), 0); 3830 3831 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3832 (char *)fw_ddb_entry->iscsi_alias, 0); 3833 3834 options = le16_to_cpu(fw_ddb_entry->options); 3835 if (options & DDB_OPT_IPV6_DEVICE) { 3836 memset(ip_addr, 0, sizeof(ip_addr)); 3837 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3838 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3839 (char *)ip_addr, 0); 3840 } 3841 } 3842 3843 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3844 struct dev_db_entry *fw_ddb_entry, 3845 struct iscsi_cls_session *cls_sess, 3846 struct iscsi_cls_conn *cls_conn) 3847 { 3848 int buflen = 0; 3849 struct iscsi_session *sess; 3850 struct ddb_entry *ddb_entry; 3851 struct ql4_chap_table chap_tbl; 3852 struct iscsi_conn *conn; 3853 char ip_addr[DDB_IPADDR_LEN]; 3854 uint16_t options = 0; 3855 3856 sess = cls_sess->dd_data; 3857 ddb_entry = sess->dd_data; 3858 conn = cls_conn->dd_data; 3859 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3860 3861 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3862 3863 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3864 3865 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3866 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3867 3868 memset(ip_addr, 0, sizeof(ip_addr)); 3869 options = le16_to_cpu(fw_ddb_entry->options); 3870 if (options & DDB_OPT_IPV6_DEVICE) { 3871 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3872 3873 memset(ip_addr, 0, sizeof(ip_addr)); 3874 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3875 } else { 3876 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3877 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3878 } 3879 3880 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3881 (char *)ip_addr, buflen); 3882 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3883 (char *)fw_ddb_entry->iscsi_name, buflen); 3884 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3885 (char *)ha->name_string, buflen); 3886 3887 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3888 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3889 chap_tbl.secret, 3890 ddb_entry->chap_tbl_idx)) { 3891 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3892 (char *)chap_tbl.name, 3893 strlen((char *)chap_tbl.name)); 3894 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3895 (char *)chap_tbl.secret, 3896 chap_tbl.secret_len); 3897 } 3898 } 3899 } 3900 3901 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3902 struct ddb_entry *ddb_entry) 3903 { 3904 struct iscsi_cls_session *cls_sess; 3905 struct iscsi_cls_conn *cls_conn; 3906 uint32_t ddb_state; 3907 dma_addr_t fw_ddb_entry_dma; 3908 struct dev_db_entry *fw_ddb_entry; 3909 3910 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3911 &fw_ddb_entry_dma, GFP_KERNEL); 3912 if (!fw_ddb_entry) { 3913 ql4_printk(KERN_ERR, ha, 3914 "%s: Unable to allocate dma buffer\n", __func__); 3915 goto exit_session_conn_fwddb_param; 3916 } 3917 3918 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3919 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3920 NULL, NULL, NULL) == QLA_ERROR) { 3921 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3922 "get_ddb_entry for fw_ddb_index %d\n", 3923 ha->host_no, __func__, 3924 ddb_entry->fw_ddb_index)); 3925 goto exit_session_conn_fwddb_param; 3926 } 3927 3928 cls_sess = ddb_entry->sess; 3929 3930 cls_conn = ddb_entry->conn; 3931 3932 /* Update params */ 3933 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3934 3935 exit_session_conn_fwddb_param: 3936 if (fw_ddb_entry) 3937 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3938 fw_ddb_entry, fw_ddb_entry_dma); 3939 } 3940 3941 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3942 struct ddb_entry *ddb_entry) 3943 { 3944 struct iscsi_cls_session *cls_sess; 3945 struct iscsi_cls_conn *cls_conn; 3946 struct iscsi_session *sess; 3947 struct iscsi_conn *conn; 3948 uint32_t ddb_state; 3949 dma_addr_t fw_ddb_entry_dma; 3950 struct dev_db_entry *fw_ddb_entry; 3951 3952 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3953 &fw_ddb_entry_dma, GFP_KERNEL); 3954 if (!fw_ddb_entry) { 3955 ql4_printk(KERN_ERR, ha, 3956 "%s: Unable to allocate dma buffer\n", __func__); 3957 goto exit_session_conn_param; 3958 } 3959 3960 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3961 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3962 NULL, NULL, NULL) == QLA_ERROR) { 3963 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3964 "get_ddb_entry for fw_ddb_index %d\n", 3965 ha->host_no, __func__, 3966 ddb_entry->fw_ddb_index)); 3967 goto exit_session_conn_param; 3968 } 3969 3970 cls_sess = ddb_entry->sess; 3971 sess = cls_sess->dd_data; 3972 3973 cls_conn = ddb_entry->conn; 3974 conn = cls_conn->dd_data; 3975 3976 /* Update timers after login */ 3977 ddb_entry->default_relogin_timeout = 3978 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3979 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3980 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3981 ddb_entry->default_time2wait = 3982 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3983 3984 /* Update params */ 3985 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3986 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3987 3988 memcpy(sess->initiatorname, ha->name_string, 3989 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 3990 3991 exit_session_conn_param: 3992 if (fw_ddb_entry) 3993 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3994 fw_ddb_entry, fw_ddb_entry_dma); 3995 } 3996 3997 /* 3998 * Timer routines 3999 */ 4000 static void qla4xxx_timer(struct timer_list *t); 4001 4002 static void qla4xxx_start_timer(struct scsi_qla_host *ha, 4003 unsigned long interval) 4004 { 4005 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 4006 __func__, ha->host->host_no)); 4007 timer_setup(&ha->timer, qla4xxx_timer, 0); 4008 ha->timer.expires = jiffies + interval * HZ; 4009 add_timer(&ha->timer); 4010 ha->timer_active = 1; 4011 } 4012 4013 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 4014 { 4015 del_timer_sync(&ha->timer); 4016 ha->timer_active = 0; 4017 } 4018 4019 /*** 4020 * qla4xxx_mark_device_missing - blocks the session 4021 * @cls_session: Pointer to the session to be blocked 4022 * @ddb_entry: Pointer to device database entry 4023 * 4024 * This routine marks a device missing and close connection. 4025 **/ 4026 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 4027 { 4028 iscsi_block_session(cls_session); 4029 } 4030 4031 /** 4032 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 4033 * @ha: Pointer to host adapter structure. 4034 * 4035 * This routine marks a device missing and resets the relogin retry count. 4036 **/ 4037 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 4038 { 4039 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 4040 } 4041 4042 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 4043 struct ddb_entry *ddb_entry, 4044 struct scsi_cmnd *cmd) 4045 { 4046 struct srb *srb; 4047 4048 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 4049 if (!srb) 4050 return srb; 4051 4052 kref_init(&srb->srb_ref); 4053 srb->ha = ha; 4054 srb->ddb = ddb_entry; 4055 srb->cmd = cmd; 4056 srb->flags = 0; 4057 CMD_SP(cmd) = (void *)srb; 4058 4059 return srb; 4060 } 4061 4062 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4063 { 4064 struct scsi_cmnd *cmd = srb->cmd; 4065 4066 if (srb->flags & SRB_DMA_VALID) { 4067 scsi_dma_unmap(cmd); 4068 srb->flags &= ~SRB_DMA_VALID; 4069 } 4070 CMD_SP(cmd) = NULL; 4071 } 4072 4073 void qla4xxx_srb_compl(struct kref *ref) 4074 { 4075 struct srb *srb = container_of(ref, struct srb, srb_ref); 4076 struct scsi_cmnd *cmd = srb->cmd; 4077 struct scsi_qla_host *ha = srb->ha; 4078 4079 qla4xxx_srb_free_dma(ha, srb); 4080 4081 mempool_free(srb, ha->srb_mempool); 4082 4083 cmd->scsi_done(cmd); 4084 } 4085 4086 /** 4087 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4088 * @host: scsi host 4089 * @cmd: Pointer to Linux's SCSI command structure 4090 * 4091 * Remarks: 4092 * This routine is invoked by Linux to send a SCSI command to the driver. 4093 * The mid-level driver tries to ensure that queuecommand never gets 4094 * invoked concurrently with itself or the interrupt handler (although 4095 * the interrupt handler may call this routine as part of request- 4096 * completion handling). Unfortunely, it sometimes calls the scheduler 4097 * in interrupt context which is a big NO! NO!. 4098 **/ 4099 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4100 { 4101 struct scsi_qla_host *ha = to_qla_host(host); 4102 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4103 struct iscsi_cls_session *sess = ddb_entry->sess; 4104 struct srb *srb; 4105 int rval; 4106 4107 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4108 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4109 cmd->result = DID_NO_CONNECT << 16; 4110 else 4111 cmd->result = DID_REQUEUE << 16; 4112 goto qc_fail_command; 4113 } 4114 4115 if (!sess) { 4116 cmd->result = DID_IMM_RETRY << 16; 4117 goto qc_fail_command; 4118 } 4119 4120 rval = iscsi_session_chkready(sess); 4121 if (rval) { 4122 cmd->result = rval; 4123 goto qc_fail_command; 4124 } 4125 4126 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4127 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4128 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4129 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4130 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4131 !test_bit(AF_ONLINE, &ha->flags) || 4132 !test_bit(AF_LINK_UP, &ha->flags) || 4133 test_bit(AF_LOOPBACK, &ha->flags) || 4134 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4135 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4136 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4137 goto qc_host_busy; 4138 4139 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4140 if (!srb) 4141 goto qc_host_busy; 4142 4143 rval = qla4xxx_send_command_to_isp(ha, srb); 4144 if (rval != QLA_SUCCESS) 4145 goto qc_host_busy_free_sp; 4146 4147 return 0; 4148 4149 qc_host_busy_free_sp: 4150 qla4xxx_srb_free_dma(ha, srb); 4151 mempool_free(srb, ha->srb_mempool); 4152 4153 qc_host_busy: 4154 return SCSI_MLQUEUE_HOST_BUSY; 4155 4156 qc_fail_command: 4157 cmd->scsi_done(cmd); 4158 4159 return 0; 4160 } 4161 4162 /** 4163 * qla4xxx_mem_free - frees memory allocated to adapter 4164 * @ha: Pointer to host adapter structure. 4165 * 4166 * Frees memory previously allocated by qla4xxx_mem_alloc 4167 **/ 4168 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4169 { 4170 if (ha->queues) 4171 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4172 ha->queues_dma); 4173 4174 if (ha->fw_dump) 4175 vfree(ha->fw_dump); 4176 4177 ha->queues_len = 0; 4178 ha->queues = NULL; 4179 ha->queues_dma = 0; 4180 ha->request_ring = NULL; 4181 ha->request_dma = 0; 4182 ha->response_ring = NULL; 4183 ha->response_dma = 0; 4184 ha->shadow_regs = NULL; 4185 ha->shadow_regs_dma = 0; 4186 ha->fw_dump = NULL; 4187 ha->fw_dump_size = 0; 4188 4189 /* Free srb pool. */ 4190 mempool_destroy(ha->srb_mempool); 4191 ha->srb_mempool = NULL; 4192 4193 dma_pool_destroy(ha->chap_dma_pool); 4194 4195 if (ha->chap_list) 4196 vfree(ha->chap_list); 4197 ha->chap_list = NULL; 4198 4199 dma_pool_destroy(ha->fw_ddb_dma_pool); 4200 4201 /* release io space registers */ 4202 if (is_qla8022(ha)) { 4203 if (ha->nx_pcibase) 4204 iounmap( 4205 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4206 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4207 if (ha->nx_pcibase) 4208 iounmap( 4209 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4210 } else if (ha->reg) { 4211 iounmap(ha->reg); 4212 } 4213 4214 if (ha->reset_tmplt.buff) 4215 vfree(ha->reset_tmplt.buff); 4216 4217 pci_release_regions(ha->pdev); 4218 } 4219 4220 /** 4221 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4222 * @ha: Pointer to host adapter structure 4223 * 4224 * Allocates DMA memory for request and response queues. Also allocates memory 4225 * for srbs. 4226 **/ 4227 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4228 { 4229 unsigned long align; 4230 4231 /* Allocate contiguous block of DMA memory for queues. */ 4232 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4233 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4234 sizeof(struct shadow_regs) + 4235 MEM_ALIGN_VALUE + 4236 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4237 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 4238 &ha->queues_dma, GFP_KERNEL); 4239 if (ha->queues == NULL) { 4240 ql4_printk(KERN_WARNING, ha, 4241 "Memory Allocation failed - queues.\n"); 4242 4243 goto mem_alloc_error_exit; 4244 } 4245 4246 /* 4247 * As per RISC alignment requirements -- the bus-address must be a 4248 * multiple of the request-ring size (in bytes). 4249 */ 4250 align = 0; 4251 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4252 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4253 (MEM_ALIGN_VALUE - 1)); 4254 4255 /* Update request and response queue pointers. */ 4256 ha->request_dma = ha->queues_dma + align; 4257 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4258 ha->response_dma = ha->queues_dma + align + 4259 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4260 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4261 (REQUEST_QUEUE_DEPTH * 4262 QUEUE_SIZE)); 4263 ha->shadow_regs_dma = ha->queues_dma + align + 4264 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4265 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4266 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4267 (REQUEST_QUEUE_DEPTH * 4268 QUEUE_SIZE) + 4269 (RESPONSE_QUEUE_DEPTH * 4270 QUEUE_SIZE)); 4271 4272 /* Allocate memory for srb pool. */ 4273 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4274 mempool_free_slab, srb_cachep); 4275 if (ha->srb_mempool == NULL) { 4276 ql4_printk(KERN_WARNING, ha, 4277 "Memory Allocation failed - SRB Pool.\n"); 4278 4279 goto mem_alloc_error_exit; 4280 } 4281 4282 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4283 CHAP_DMA_BLOCK_SIZE, 8, 0); 4284 4285 if (ha->chap_dma_pool == NULL) { 4286 ql4_printk(KERN_WARNING, ha, 4287 "%s: chap_dma_pool allocation failed..\n", __func__); 4288 goto mem_alloc_error_exit; 4289 } 4290 4291 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4292 DDB_DMA_BLOCK_SIZE, 8, 0); 4293 4294 if (ha->fw_ddb_dma_pool == NULL) { 4295 ql4_printk(KERN_WARNING, ha, 4296 "%s: fw_ddb_dma_pool allocation failed..\n", 4297 __func__); 4298 goto mem_alloc_error_exit; 4299 } 4300 4301 return QLA_SUCCESS; 4302 4303 mem_alloc_error_exit: 4304 return QLA_ERROR; 4305 } 4306 4307 /** 4308 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4309 * @ha: adapter block pointer. 4310 * 4311 * Note: The caller should not hold the idc lock. 4312 **/ 4313 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4314 { 4315 uint32_t temp, temp_state, temp_val; 4316 int status = QLA_SUCCESS; 4317 4318 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4319 4320 temp_state = qla82xx_get_temp_state(temp); 4321 temp_val = qla82xx_get_temp_val(temp); 4322 4323 if (temp_state == QLA82XX_TEMP_PANIC) { 4324 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4325 " exceeds maximum allowed. Hardware has been shut" 4326 " down.\n", temp_val); 4327 status = QLA_ERROR; 4328 } else if (temp_state == QLA82XX_TEMP_WARN) { 4329 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4330 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4331 " degrees C exceeds operating range." 4332 " Immediate action needed.\n", temp_val); 4333 } else { 4334 if (ha->temperature == QLA82XX_TEMP_WARN) 4335 ql4_printk(KERN_INFO, ha, "Device temperature is" 4336 " now %d degrees C in normal range.\n", 4337 temp_val); 4338 } 4339 ha->temperature = temp_state; 4340 return status; 4341 } 4342 4343 /** 4344 * qla4_8xxx_check_fw_alive - Check firmware health 4345 * @ha: Pointer to host adapter structure. 4346 * 4347 * Context: Interrupt 4348 **/ 4349 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4350 { 4351 uint32_t fw_heartbeat_counter; 4352 int status = QLA_SUCCESS; 4353 4354 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4355 QLA8XXX_PEG_ALIVE_COUNTER); 4356 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4357 if (fw_heartbeat_counter == 0xffffffff) { 4358 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4359 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4360 ha->host_no, __func__)); 4361 return status; 4362 } 4363 4364 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4365 ha->seconds_since_last_heartbeat++; 4366 /* FW not alive after 2 seconds */ 4367 if (ha->seconds_since_last_heartbeat == 2) { 4368 ha->seconds_since_last_heartbeat = 0; 4369 qla4_8xxx_dump_peg_reg(ha); 4370 status = QLA_ERROR; 4371 } 4372 } else 4373 ha->seconds_since_last_heartbeat = 0; 4374 4375 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4376 return status; 4377 } 4378 4379 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4380 { 4381 uint32_t halt_status; 4382 int halt_status_unrecoverable = 0; 4383 4384 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4385 4386 if (is_qla8022(ha)) { 4387 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4388 __func__); 4389 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4390 CRB_NIU_XG_PAUSE_CTL_P0 | 4391 CRB_NIU_XG_PAUSE_CTL_P1); 4392 4393 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4394 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4395 __func__); 4396 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4397 halt_status_unrecoverable = 1; 4398 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4399 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4400 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4401 __func__); 4402 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4403 halt_status_unrecoverable = 1; 4404 } 4405 4406 /* 4407 * Since we cannot change dev_state in interrupt context, 4408 * set appropriate DPC flag then wakeup DPC 4409 */ 4410 if (halt_status_unrecoverable) { 4411 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4412 } else { 4413 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4414 __func__); 4415 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4416 } 4417 qla4xxx_mailbox_premature_completion(ha); 4418 qla4xxx_wake_dpc(ha); 4419 } 4420 4421 /** 4422 * qla4_8xxx_watchdog - Poll dev state 4423 * @ha: Pointer to host adapter structure. 4424 * 4425 * Context: Interrupt 4426 **/ 4427 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4428 { 4429 uint32_t dev_state; 4430 uint32_t idc_ctrl; 4431 4432 if (is_qla8032(ha) && 4433 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4434 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4435 __func__, ha->func_num); 4436 4437 /* don't poll if reset is going on */ 4438 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4439 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4440 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4441 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4442 4443 if (qla4_8xxx_check_temp(ha)) { 4444 if (is_qla8022(ha)) { 4445 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4446 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4447 CRB_NIU_XG_PAUSE_CTL_P0 | 4448 CRB_NIU_XG_PAUSE_CTL_P1); 4449 } 4450 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4451 qla4xxx_wake_dpc(ha); 4452 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4453 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4454 4455 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4456 __func__); 4457 4458 if (is_qla8032(ha) || is_qla8042(ha)) { 4459 idc_ctrl = qla4_83xx_rd_reg(ha, 4460 QLA83XX_IDC_DRV_CTRL); 4461 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4462 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4463 __func__); 4464 qla4xxx_mailbox_premature_completion( 4465 ha); 4466 } 4467 } 4468 4469 if ((is_qla8032(ha) || is_qla8042(ha)) || 4470 (is_qla8022(ha) && !ql4xdontresethba)) { 4471 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4472 qla4xxx_wake_dpc(ha); 4473 } 4474 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4475 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4476 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4477 __func__); 4478 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4479 qla4xxx_wake_dpc(ha); 4480 } else { 4481 /* Check firmware health */ 4482 if (qla4_8xxx_check_fw_alive(ha)) 4483 qla4_8xxx_process_fw_error(ha); 4484 } 4485 } 4486 } 4487 4488 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4489 { 4490 struct iscsi_session *sess; 4491 struct ddb_entry *ddb_entry; 4492 struct scsi_qla_host *ha; 4493 4494 sess = cls_sess->dd_data; 4495 ddb_entry = sess->dd_data; 4496 ha = ddb_entry->ha; 4497 4498 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4499 return; 4500 4501 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4502 !iscsi_is_session_online(cls_sess)) { 4503 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4504 INVALID_ENTRY) { 4505 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4506 0) { 4507 atomic_set(&ddb_entry->retry_relogin_timer, 4508 INVALID_ENTRY); 4509 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4510 set_bit(DF_RELOGIN, &ddb_entry->flags); 4511 DEBUG2(ql4_printk(KERN_INFO, ha, 4512 "%s: index [%d] login device\n", 4513 __func__, ddb_entry->fw_ddb_index)); 4514 } else 4515 atomic_dec(&ddb_entry->retry_relogin_timer); 4516 } 4517 } 4518 4519 /* Wait for relogin to timeout */ 4520 if (atomic_read(&ddb_entry->relogin_timer) && 4521 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4522 /* 4523 * If the relogin times out and the device is 4524 * still NOT ONLINE then try and relogin again. 4525 */ 4526 if (!iscsi_is_session_online(cls_sess)) { 4527 /* Reset retry relogin timer */ 4528 atomic_inc(&ddb_entry->relogin_retry_count); 4529 DEBUG2(ql4_printk(KERN_INFO, ha, 4530 "%s: index[%d] relogin timed out-retrying" 4531 " relogin (%d), retry (%d)\n", __func__, 4532 ddb_entry->fw_ddb_index, 4533 atomic_read(&ddb_entry->relogin_retry_count), 4534 ddb_entry->default_time2wait + 4)); 4535 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4536 atomic_set(&ddb_entry->retry_relogin_timer, 4537 ddb_entry->default_time2wait + 4); 4538 } 4539 } 4540 } 4541 4542 /** 4543 * qla4xxx_timer - checks every second for work to do. 4544 * @t: Context to obtain pointer to host adapter structure. 4545 **/ 4546 static void qla4xxx_timer(struct timer_list *t) 4547 { 4548 struct scsi_qla_host *ha = from_timer(ha, t, timer); 4549 int start_dpc = 0; 4550 uint16_t w; 4551 4552 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4553 4554 /* If we are in the middle of AER/EEH processing 4555 * skip any processing and reschedule the timer 4556 */ 4557 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4558 mod_timer(&ha->timer, jiffies + HZ); 4559 return; 4560 } 4561 4562 /* Hardware read to trigger an EEH error during mailbox waits. */ 4563 if (!pci_channel_offline(ha->pdev)) 4564 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4565 4566 if (is_qla80XX(ha)) 4567 qla4_8xxx_watchdog(ha); 4568 4569 if (is_qla40XX(ha)) { 4570 /* Check for heartbeat interval. */ 4571 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4572 ha->heartbeat_interval != 0) { 4573 ha->seconds_since_last_heartbeat++; 4574 if (ha->seconds_since_last_heartbeat > 4575 ha->heartbeat_interval + 2) 4576 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4577 } 4578 } 4579 4580 /* Process any deferred work. */ 4581 if (!list_empty(&ha->work_list)) 4582 start_dpc++; 4583 4584 /* Wakeup the dpc routine for this adapter, if needed. */ 4585 if (start_dpc || 4586 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4587 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4588 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4589 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4590 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4591 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4592 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4593 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4594 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4595 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) || 4596 test_bit(DPC_AEN, &ha->dpc_flags)) { 4597 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4598 " - dpc flags = 0x%lx\n", 4599 ha->host_no, __func__, ha->dpc_flags)); 4600 qla4xxx_wake_dpc(ha); 4601 } 4602 4603 /* Reschedule timer thread to call us back in one second */ 4604 mod_timer(&ha->timer, jiffies + HZ); 4605 4606 DEBUG2(ha->seconds_since_last_intr++); 4607 } 4608 4609 /** 4610 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4611 * @ha: Pointer to host adapter structure. 4612 * 4613 * This routine stalls the driver until all outstanding commands are returned. 4614 * Caller must release the Hardware Lock prior to calling this routine. 4615 **/ 4616 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4617 { 4618 uint32_t index = 0; 4619 unsigned long flags; 4620 struct scsi_cmnd *cmd; 4621 unsigned long wtime; 4622 uint32_t wtmo; 4623 4624 if (is_qla40XX(ha)) 4625 wtmo = WAIT_CMD_TOV; 4626 else 4627 wtmo = ha->nx_reset_timeout / 2; 4628 4629 wtime = jiffies + (wtmo * HZ); 4630 4631 DEBUG2(ql4_printk(KERN_INFO, ha, 4632 "Wait up to %u seconds for cmds to complete\n", 4633 wtmo)); 4634 4635 while (!time_after_eq(jiffies, wtime)) { 4636 spin_lock_irqsave(&ha->hardware_lock, flags); 4637 /* Find a command that hasn't completed. */ 4638 for (index = 0; index < ha->host->can_queue; index++) { 4639 cmd = scsi_host_find_tag(ha->host, index); 4640 /* 4641 * We cannot just check if the index is valid, 4642 * becase if we are run from the scsi eh, then 4643 * the scsi/block layer is going to prevent 4644 * the tag from being released. 4645 */ 4646 if (cmd != NULL && CMD_SP(cmd)) 4647 break; 4648 } 4649 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4650 4651 /* If No Commands are pending, wait is complete */ 4652 if (index == ha->host->can_queue) 4653 return QLA_SUCCESS; 4654 4655 msleep(1000); 4656 } 4657 /* If we timed out on waiting for commands to come back 4658 * return ERROR. */ 4659 return QLA_ERROR; 4660 } 4661 4662 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4663 { 4664 uint32_t ctrl_status; 4665 unsigned long flags = 0; 4666 4667 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4668 4669 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4670 return QLA_ERROR; 4671 4672 spin_lock_irqsave(&ha->hardware_lock, flags); 4673 4674 /* 4675 * If the SCSI Reset Interrupt bit is set, clear it. 4676 * Otherwise, the Soft Reset won't work. 4677 */ 4678 ctrl_status = readw(&ha->reg->ctrl_status); 4679 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4680 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4681 4682 /* Issue Soft Reset */ 4683 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4684 readl(&ha->reg->ctrl_status); 4685 4686 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4687 return QLA_SUCCESS; 4688 } 4689 4690 /** 4691 * qla4xxx_soft_reset - performs soft reset. 4692 * @ha: Pointer to host adapter structure. 4693 **/ 4694 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4695 { 4696 uint32_t max_wait_time; 4697 unsigned long flags = 0; 4698 int status; 4699 uint32_t ctrl_status; 4700 4701 status = qla4xxx_hw_reset(ha); 4702 if (status != QLA_SUCCESS) 4703 return status; 4704 4705 status = QLA_ERROR; 4706 /* Wait until the Network Reset Intr bit is cleared */ 4707 max_wait_time = RESET_INTR_TOV; 4708 do { 4709 spin_lock_irqsave(&ha->hardware_lock, flags); 4710 ctrl_status = readw(&ha->reg->ctrl_status); 4711 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4712 4713 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4714 break; 4715 4716 msleep(1000); 4717 } while ((--max_wait_time)); 4718 4719 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4720 DEBUG2(printk(KERN_WARNING 4721 "scsi%ld: Network Reset Intr not cleared by " 4722 "Network function, clearing it now!\n", 4723 ha->host_no)); 4724 spin_lock_irqsave(&ha->hardware_lock, flags); 4725 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4726 readl(&ha->reg->ctrl_status); 4727 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4728 } 4729 4730 /* Wait until the firmware tells us the Soft Reset is done */ 4731 max_wait_time = SOFT_RESET_TOV; 4732 do { 4733 spin_lock_irqsave(&ha->hardware_lock, flags); 4734 ctrl_status = readw(&ha->reg->ctrl_status); 4735 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4736 4737 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4738 status = QLA_SUCCESS; 4739 break; 4740 } 4741 4742 msleep(1000); 4743 } while ((--max_wait_time)); 4744 4745 /* 4746 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4747 * after the soft reset has taken place. 4748 */ 4749 spin_lock_irqsave(&ha->hardware_lock, flags); 4750 ctrl_status = readw(&ha->reg->ctrl_status); 4751 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4752 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4753 readl(&ha->reg->ctrl_status); 4754 } 4755 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4756 4757 /* If soft reset fails then most probably the bios on other 4758 * function is also enabled. 4759 * Since the initialization is sequential the other fn 4760 * wont be able to acknowledge the soft reset. 4761 * Issue a force soft reset to workaround this scenario. 4762 */ 4763 if (max_wait_time == 0) { 4764 /* Issue Force Soft Reset */ 4765 spin_lock_irqsave(&ha->hardware_lock, flags); 4766 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4767 readl(&ha->reg->ctrl_status); 4768 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4769 /* Wait until the firmware tells us the Soft Reset is done */ 4770 max_wait_time = SOFT_RESET_TOV; 4771 do { 4772 spin_lock_irqsave(&ha->hardware_lock, flags); 4773 ctrl_status = readw(&ha->reg->ctrl_status); 4774 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4775 4776 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4777 status = QLA_SUCCESS; 4778 break; 4779 } 4780 4781 msleep(1000); 4782 } while ((--max_wait_time)); 4783 } 4784 4785 return status; 4786 } 4787 4788 /** 4789 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4790 * @ha: Pointer to host adapter structure. 4791 * @res: returned scsi status 4792 * 4793 * This routine is called just prior to a HARD RESET to return all 4794 * outstanding commands back to the Operating System. 4795 * Caller should make sure that the following locks are released 4796 * before this calling routine: Hardware lock, and io_request_lock. 4797 **/ 4798 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4799 { 4800 struct srb *srb; 4801 int i; 4802 unsigned long flags; 4803 4804 spin_lock_irqsave(&ha->hardware_lock, flags); 4805 for (i = 0; i < ha->host->can_queue; i++) { 4806 srb = qla4xxx_del_from_active_array(ha, i); 4807 if (srb != NULL) { 4808 srb->cmd->result = res; 4809 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4810 } 4811 } 4812 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4813 } 4814 4815 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4816 { 4817 clear_bit(AF_ONLINE, &ha->flags); 4818 4819 /* Disable the board */ 4820 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4821 4822 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4823 qla4xxx_mark_all_devices_missing(ha); 4824 clear_bit(AF_INIT_DONE, &ha->flags); 4825 } 4826 4827 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4828 { 4829 struct iscsi_session *sess; 4830 struct ddb_entry *ddb_entry; 4831 4832 sess = cls_session->dd_data; 4833 ddb_entry = sess->dd_data; 4834 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4835 4836 if (ddb_entry->ddb_type == FLASH_DDB) 4837 iscsi_block_session(ddb_entry->sess); 4838 else 4839 iscsi_session_failure(cls_session->dd_data, 4840 ISCSI_ERR_CONN_FAILED); 4841 } 4842 4843 /** 4844 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4845 * @ha: Pointer to host adapter structure. 4846 **/ 4847 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4848 { 4849 int status = QLA_ERROR; 4850 uint8_t reset_chip = 0; 4851 uint32_t dev_state; 4852 unsigned long wait; 4853 4854 /* Stall incoming I/O until we are done */ 4855 scsi_block_requests(ha->host); 4856 clear_bit(AF_ONLINE, &ha->flags); 4857 clear_bit(AF_LINK_UP, &ha->flags); 4858 4859 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4860 4861 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4862 4863 if ((is_qla8032(ha) || is_qla8042(ha)) && 4864 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4865 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4866 __func__); 4867 /* disable pause frame for ISP83xx */ 4868 qla4_83xx_disable_pause(ha); 4869 } 4870 4871 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4872 4873 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4874 reset_chip = 1; 4875 4876 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4877 * do not reset adapter, jump to initialize_adapter */ 4878 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4879 status = QLA_SUCCESS; 4880 goto recover_ha_init_adapter; 4881 } 4882 4883 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4884 * from eh_host_reset or ioctl module */ 4885 if (is_qla80XX(ha) && !reset_chip && 4886 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4887 4888 DEBUG2(ql4_printk(KERN_INFO, ha, 4889 "scsi%ld: %s - Performing stop_firmware...\n", 4890 ha->host_no, __func__)); 4891 status = ha->isp_ops->reset_firmware(ha); 4892 if (status == QLA_SUCCESS) { 4893 ha->isp_ops->disable_intrs(ha); 4894 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4895 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4896 } else { 4897 /* If the stop_firmware fails then 4898 * reset the entire chip */ 4899 reset_chip = 1; 4900 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4901 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4902 } 4903 } 4904 4905 /* Issue full chip reset if recovering from a catastrophic error, 4906 * or if stop_firmware fails for ISP-8xxx. 4907 * This is the default case for ISP-4xxx */ 4908 if (is_qla40XX(ha) || reset_chip) { 4909 if (is_qla40XX(ha)) 4910 goto chip_reset; 4911 4912 /* Check if 8XXX firmware is alive or not 4913 * We may have arrived here from NEED_RESET 4914 * detection only */ 4915 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4916 goto chip_reset; 4917 4918 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4919 while (time_before(jiffies, wait)) { 4920 if (qla4_8xxx_check_fw_alive(ha)) { 4921 qla4xxx_mailbox_premature_completion(ha); 4922 break; 4923 } 4924 4925 set_current_state(TASK_UNINTERRUPTIBLE); 4926 schedule_timeout(HZ); 4927 } 4928 chip_reset: 4929 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4930 qla4xxx_cmd_wait(ha); 4931 4932 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4933 DEBUG2(ql4_printk(KERN_INFO, ha, 4934 "scsi%ld: %s - Performing chip reset..\n", 4935 ha->host_no, __func__)); 4936 status = ha->isp_ops->reset_chip(ha); 4937 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4938 } 4939 4940 /* Flush any pending ddb changed AENs */ 4941 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4942 4943 recover_ha_init_adapter: 4944 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4945 if (status == QLA_SUCCESS) { 4946 /* For ISP-4xxx, force function 1 to always initialize 4947 * before function 3 to prevent both funcions from 4948 * stepping on top of the other */ 4949 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4950 ssleep(6); 4951 4952 /* NOTE: AF_ONLINE flag set upon successful completion of 4953 * qla4xxx_initialize_adapter */ 4954 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4955 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4956 status = qla4_8xxx_check_init_adapter_retry(ha); 4957 if (status == QLA_ERROR) { 4958 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4959 ha->host_no, __func__); 4960 qla4xxx_dead_adapter_cleanup(ha); 4961 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4962 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4963 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4964 &ha->dpc_flags); 4965 goto exit_recover; 4966 } 4967 } 4968 } 4969 4970 /* Retry failed adapter initialization, if necessary 4971 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4972 * case to prevent ping-pong resets between functions */ 4973 if (!test_bit(AF_ONLINE, &ha->flags) && 4974 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4975 /* Adapter initialization failed, see if we can retry 4976 * resetting the ha. 4977 * Since we don't want to block the DPC for too long 4978 * with multiple resets in the same thread, 4979 * utilize DPC to retry */ 4980 if (is_qla80XX(ha)) { 4981 ha->isp_ops->idc_lock(ha); 4982 dev_state = qla4_8xxx_rd_direct(ha, 4983 QLA8XXX_CRB_DEV_STATE); 4984 ha->isp_ops->idc_unlock(ha); 4985 if (dev_state == QLA8XXX_DEV_FAILED) { 4986 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4987 "recover adapter. H/W is in Failed " 4988 "state\n", __func__); 4989 qla4xxx_dead_adapter_cleanup(ha); 4990 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4991 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4992 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4993 &ha->dpc_flags); 4994 status = QLA_ERROR; 4995 4996 goto exit_recover; 4997 } 4998 } 4999 5000 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 5001 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 5002 DEBUG2(printk("scsi%ld: recover adapter - retrying " 5003 "(%d) more times\n", ha->host_no, 5004 ha->retry_reset_ha_cnt)); 5005 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5006 status = QLA_ERROR; 5007 } else { 5008 if (ha->retry_reset_ha_cnt > 0) { 5009 /* Schedule another Reset HA--DPC will retry */ 5010 ha->retry_reset_ha_cnt--; 5011 DEBUG2(printk("scsi%ld: recover adapter - " 5012 "retry remaining %d\n", 5013 ha->host_no, 5014 ha->retry_reset_ha_cnt)); 5015 status = QLA_ERROR; 5016 } 5017 5018 if (ha->retry_reset_ha_cnt == 0) { 5019 /* Recover adapter retries have been exhausted. 5020 * Adapter DEAD */ 5021 DEBUG2(printk("scsi%ld: recover adapter " 5022 "failed - board disabled\n", 5023 ha->host_no)); 5024 qla4xxx_dead_adapter_cleanup(ha); 5025 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5026 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5027 clear_bit(DPC_RESET_HA_FW_CONTEXT, 5028 &ha->dpc_flags); 5029 status = QLA_ERROR; 5030 } 5031 } 5032 } else { 5033 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5034 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5035 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5036 } 5037 5038 exit_recover: 5039 ha->adapter_error_count++; 5040 5041 if (test_bit(AF_ONLINE, &ha->flags)) 5042 ha->isp_ops->enable_intrs(ha); 5043 5044 scsi_unblock_requests(ha->host); 5045 5046 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 5047 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 5048 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 5049 5050 return status; 5051 } 5052 5053 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 5054 { 5055 struct iscsi_session *sess; 5056 struct ddb_entry *ddb_entry; 5057 struct scsi_qla_host *ha; 5058 5059 sess = cls_session->dd_data; 5060 ddb_entry = sess->dd_data; 5061 ha = ddb_entry->ha; 5062 if (!iscsi_is_session_online(cls_session)) { 5063 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5064 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5065 " unblock session\n", ha->host_no, __func__, 5066 ddb_entry->fw_ddb_index); 5067 iscsi_unblock_session(ddb_entry->sess); 5068 } else { 5069 /* Trigger relogin */ 5070 if (ddb_entry->ddb_type == FLASH_DDB) { 5071 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5072 test_bit(DF_DISABLE_RELOGIN, 5073 &ddb_entry->flags))) 5074 qla4xxx_arm_relogin_timer(ddb_entry); 5075 } else 5076 iscsi_session_failure(cls_session->dd_data, 5077 ISCSI_ERR_CONN_FAILED); 5078 } 5079 } 5080 } 5081 5082 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5083 { 5084 struct iscsi_session *sess; 5085 struct ddb_entry *ddb_entry; 5086 struct scsi_qla_host *ha; 5087 5088 sess = cls_session->dd_data; 5089 ddb_entry = sess->dd_data; 5090 ha = ddb_entry->ha; 5091 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5092 " unblock session\n", ha->host_no, __func__, 5093 ddb_entry->fw_ddb_index); 5094 5095 iscsi_unblock_session(ddb_entry->sess); 5096 5097 /* Start scan target */ 5098 if (test_bit(AF_ONLINE, &ha->flags)) { 5099 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5100 " start scan\n", ha->host_no, __func__, 5101 ddb_entry->fw_ddb_index); 5102 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 5103 } 5104 return QLA_SUCCESS; 5105 } 5106 5107 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5108 { 5109 struct iscsi_session *sess; 5110 struct ddb_entry *ddb_entry; 5111 struct scsi_qla_host *ha; 5112 int status = QLA_SUCCESS; 5113 5114 sess = cls_session->dd_data; 5115 ddb_entry = sess->dd_data; 5116 ha = ddb_entry->ha; 5117 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5118 " unblock user space session\n", ha->host_no, __func__, 5119 ddb_entry->fw_ddb_index); 5120 5121 if (!iscsi_is_session_online(cls_session)) { 5122 iscsi_conn_start(ddb_entry->conn); 5123 iscsi_conn_login_event(ddb_entry->conn, 5124 ISCSI_CONN_STATE_LOGGED_IN); 5125 } else { 5126 ql4_printk(KERN_INFO, ha, 5127 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5128 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5129 cls_session->sid); 5130 status = QLA_ERROR; 5131 } 5132 5133 return status; 5134 } 5135 5136 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5137 { 5138 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5139 } 5140 5141 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5142 { 5143 uint16_t relogin_timer; 5144 struct iscsi_session *sess; 5145 struct ddb_entry *ddb_entry; 5146 struct scsi_qla_host *ha; 5147 5148 sess = cls_sess->dd_data; 5149 ddb_entry = sess->dd_data; 5150 ha = ddb_entry->ha; 5151 5152 relogin_timer = max(ddb_entry->default_relogin_timeout, 5153 (uint16_t)RELOGIN_TOV); 5154 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5155 5156 DEBUG2(ql4_printk(KERN_INFO, ha, 5157 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5158 ddb_entry->fw_ddb_index, relogin_timer)); 5159 5160 qla4xxx_login_flash_ddb(cls_sess); 5161 } 5162 5163 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5164 { 5165 struct iscsi_session *sess; 5166 struct ddb_entry *ddb_entry; 5167 struct scsi_qla_host *ha; 5168 5169 sess = cls_sess->dd_data; 5170 ddb_entry = sess->dd_data; 5171 ha = ddb_entry->ha; 5172 5173 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5174 return; 5175 5176 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5177 return; 5178 5179 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5180 !iscsi_is_session_online(cls_sess)) { 5181 DEBUG2(ql4_printk(KERN_INFO, ha, 5182 "relogin issued\n")); 5183 qla4xxx_relogin_flash_ddb(cls_sess); 5184 } 5185 } 5186 5187 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5188 { 5189 if (ha->dpc_thread) 5190 queue_work(ha->dpc_thread, &ha->dpc_work); 5191 } 5192 5193 static struct qla4_work_evt * 5194 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5195 enum qla4_work_type type) 5196 { 5197 struct qla4_work_evt *e; 5198 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5199 5200 e = kzalloc(size, GFP_ATOMIC); 5201 if (!e) 5202 return NULL; 5203 5204 INIT_LIST_HEAD(&e->list); 5205 e->type = type; 5206 return e; 5207 } 5208 5209 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5210 struct qla4_work_evt *e) 5211 { 5212 unsigned long flags; 5213 5214 spin_lock_irqsave(&ha->work_lock, flags); 5215 list_add_tail(&e->list, &ha->work_list); 5216 spin_unlock_irqrestore(&ha->work_lock, flags); 5217 qla4xxx_wake_dpc(ha); 5218 } 5219 5220 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5221 enum iscsi_host_event_code aen_code, 5222 uint32_t data_size, uint8_t *data) 5223 { 5224 struct qla4_work_evt *e; 5225 5226 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5227 if (!e) 5228 return QLA_ERROR; 5229 5230 e->u.aen.code = aen_code; 5231 e->u.aen.data_size = data_size; 5232 memcpy(e->u.aen.data, data, data_size); 5233 5234 qla4xxx_post_work(ha, e); 5235 5236 return QLA_SUCCESS; 5237 } 5238 5239 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5240 uint32_t status, uint32_t pid, 5241 uint32_t data_size, uint8_t *data) 5242 { 5243 struct qla4_work_evt *e; 5244 5245 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5246 if (!e) 5247 return QLA_ERROR; 5248 5249 e->u.ping.status = status; 5250 e->u.ping.pid = pid; 5251 e->u.ping.data_size = data_size; 5252 memcpy(e->u.ping.data, data, data_size); 5253 5254 qla4xxx_post_work(ha, e); 5255 5256 return QLA_SUCCESS; 5257 } 5258 5259 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5260 { 5261 struct qla4_work_evt *e, *tmp; 5262 unsigned long flags; 5263 LIST_HEAD(work); 5264 5265 spin_lock_irqsave(&ha->work_lock, flags); 5266 list_splice_init(&ha->work_list, &work); 5267 spin_unlock_irqrestore(&ha->work_lock, flags); 5268 5269 list_for_each_entry_safe(e, tmp, &work, list) { 5270 list_del_init(&e->list); 5271 5272 switch (e->type) { 5273 case QLA4_EVENT_AEN: 5274 iscsi_post_host_event(ha->host_no, 5275 &qla4xxx_iscsi_transport, 5276 e->u.aen.code, 5277 e->u.aen.data_size, 5278 e->u.aen.data); 5279 break; 5280 case QLA4_EVENT_PING_STATUS: 5281 iscsi_ping_comp_event(ha->host_no, 5282 &qla4xxx_iscsi_transport, 5283 e->u.ping.status, 5284 e->u.ping.pid, 5285 e->u.ping.data_size, 5286 e->u.ping.data); 5287 break; 5288 default: 5289 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5290 "supported", e->type); 5291 } 5292 kfree(e); 5293 } 5294 } 5295 5296 /** 5297 * qla4xxx_do_dpc - dpc routine 5298 * @work: Context to obtain pointer to host adapter structure. 5299 * 5300 * This routine is a task that is schedule by the interrupt handler 5301 * to perform the background processing for interrupts. We put it 5302 * on a task queue that is consumed whenever the scheduler runs; that's 5303 * so you can do anything (i.e. put the process to sleep etc). In fact, 5304 * the mid-level tries to sleep when it reaches the driver threshold 5305 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5306 **/ 5307 static void qla4xxx_do_dpc(struct work_struct *work) 5308 { 5309 struct scsi_qla_host *ha = 5310 container_of(work, struct scsi_qla_host, dpc_work); 5311 int status = QLA_ERROR; 5312 5313 DEBUG2(ql4_printk(KERN_INFO, ha, 5314 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5315 ha->host_no, __func__, ha->flags, ha->dpc_flags)); 5316 5317 /* Initialization not yet finished. Don't do anything yet. */ 5318 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5319 return; 5320 5321 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5322 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5323 ha->host_no, __func__, ha->flags)); 5324 return; 5325 } 5326 5327 /* post events to application */ 5328 qla4xxx_do_work(ha); 5329 5330 if (is_qla80XX(ha)) { 5331 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5332 if (is_qla8032(ha) || is_qla8042(ha)) { 5333 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5334 __func__); 5335 /* disable pause frame for ISP83xx */ 5336 qla4_83xx_disable_pause(ha); 5337 } 5338 5339 ha->isp_ops->idc_lock(ha); 5340 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5341 QLA8XXX_DEV_FAILED); 5342 ha->isp_ops->idc_unlock(ha); 5343 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5344 qla4_8xxx_device_state_handler(ha); 5345 } 5346 5347 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5348 if (is_qla8042(ha)) { 5349 if (ha->idc_info.info2 & 5350 ENABLE_INTERNAL_LOOPBACK) { 5351 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5352 __func__); 5353 status = qla4_84xx_config_acb(ha, 5354 ACB_CONFIG_DISABLE); 5355 if (status != QLA_SUCCESS) { 5356 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5357 __func__); 5358 } 5359 } 5360 } 5361 qla4_83xx_post_idc_ack(ha); 5362 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5363 } 5364 5365 if (is_qla8042(ha) && 5366 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5367 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5368 __func__); 5369 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5370 QLA_SUCCESS) { 5371 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5372 __func__); 5373 } 5374 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5375 } 5376 5377 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5378 qla4_8xxx_need_qsnt_handler(ha); 5379 } 5380 } 5381 5382 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5383 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5384 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5385 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5386 if ((is_qla8022(ha) && ql4xdontresethba) || 5387 ((is_qla8032(ha) || is_qla8042(ha)) && 5388 qla4_83xx_idc_dontreset(ha))) { 5389 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5390 ha->host_no, __func__)); 5391 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5392 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5393 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5394 goto dpc_post_reset_ha; 5395 } 5396 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5397 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5398 qla4xxx_recover_adapter(ha); 5399 5400 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5401 uint8_t wait_time = RESET_INTR_TOV; 5402 5403 while ((readw(&ha->reg->ctrl_status) & 5404 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5405 if (--wait_time == 0) 5406 break; 5407 msleep(1000); 5408 } 5409 if (wait_time == 0) 5410 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5411 "bit not cleared-- resetting\n", 5412 ha->host_no, __func__)); 5413 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5414 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5415 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5416 status = qla4xxx_recover_adapter(ha); 5417 } 5418 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5419 if (status == QLA_SUCCESS) 5420 ha->isp_ops->enable_intrs(ha); 5421 } 5422 } 5423 5424 dpc_post_reset_ha: 5425 /* ---- process AEN? --- */ 5426 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5427 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5428 5429 /* ---- Get DHCP IP Address? --- */ 5430 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5431 qla4xxx_get_dhcp_ip_address(ha); 5432 5433 /* ---- relogin device? --- */ 5434 if (adapter_up(ha) && 5435 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5436 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5437 } 5438 5439 /* ---- link change? --- */ 5440 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5441 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5442 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5443 /* ---- link down? --- */ 5444 qla4xxx_mark_all_devices_missing(ha); 5445 } else { 5446 /* ---- link up? --- * 5447 * F/W will auto login to all devices ONLY ONCE after 5448 * link up during driver initialization and runtime 5449 * fatal error recovery. Therefore, the driver must 5450 * manually relogin to devices when recovering from 5451 * connection failures, logouts, expired KATO, etc. */ 5452 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5453 qla4xxx_build_ddb_list(ha, ha->is_reset); 5454 iscsi_host_for_each_session(ha->host, 5455 qla4xxx_login_flash_ddb); 5456 } else 5457 qla4xxx_relogin_all_devices(ha); 5458 } 5459 } 5460 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) { 5461 if (qla4xxx_sysfs_ddb_export(ha)) 5462 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n", 5463 __func__); 5464 } 5465 } 5466 5467 /** 5468 * qla4xxx_free_adapter - release the adapter 5469 * @ha: pointer to adapter structure 5470 **/ 5471 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5472 { 5473 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5474 5475 /* Turn-off interrupts on the card. */ 5476 ha->isp_ops->disable_intrs(ha); 5477 5478 if (is_qla40XX(ha)) { 5479 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5480 &ha->reg->ctrl_status); 5481 readl(&ha->reg->ctrl_status); 5482 } else if (is_qla8022(ha)) { 5483 writel(0, &ha->qla4_82xx_reg->host_int); 5484 readl(&ha->qla4_82xx_reg->host_int); 5485 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5486 writel(0, &ha->qla4_83xx_reg->risc_intr); 5487 readl(&ha->qla4_83xx_reg->risc_intr); 5488 } 5489 5490 /* Remove timer thread, if present */ 5491 if (ha->timer_active) 5492 qla4xxx_stop_timer(ha); 5493 5494 /* Kill the kernel thread for this host */ 5495 if (ha->dpc_thread) 5496 destroy_workqueue(ha->dpc_thread); 5497 5498 /* Kill the kernel thread for this host */ 5499 if (ha->task_wq) 5500 destroy_workqueue(ha->task_wq); 5501 5502 /* Put firmware in known state */ 5503 ha->isp_ops->reset_firmware(ha); 5504 5505 if (is_qla80XX(ha)) { 5506 ha->isp_ops->idc_lock(ha); 5507 qla4_8xxx_clear_drv_active(ha); 5508 ha->isp_ops->idc_unlock(ha); 5509 } 5510 5511 /* Detach interrupts */ 5512 qla4xxx_free_irqs(ha); 5513 5514 /* free extra memory */ 5515 qla4xxx_mem_free(ha); 5516 } 5517 5518 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5519 { 5520 int status = 0; 5521 unsigned long mem_base, mem_len; 5522 struct pci_dev *pdev = ha->pdev; 5523 5524 status = pci_request_regions(pdev, DRIVER_NAME); 5525 if (status) { 5526 printk(KERN_WARNING 5527 "scsi(%ld) Failed to reserve PIO regions (%s) " 5528 "status=%d\n", ha->host_no, pci_name(pdev), status); 5529 goto iospace_error_exit; 5530 } 5531 5532 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5533 __func__, pdev->revision)); 5534 ha->revision_id = pdev->revision; 5535 5536 /* remap phys address */ 5537 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5538 mem_len = pci_resource_len(pdev, 0); 5539 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5540 __func__, mem_base, mem_len)); 5541 5542 /* mapping of pcibase pointer */ 5543 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5544 if (!ha->nx_pcibase) { 5545 printk(KERN_ERR 5546 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5547 pci_release_regions(ha->pdev); 5548 goto iospace_error_exit; 5549 } 5550 5551 /* Mapping of IO base pointer, door bell read and write pointer */ 5552 5553 /* mapping of IO base pointer */ 5554 if (is_qla8022(ha)) { 5555 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5556 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5557 (ha->pdev->devfn << 11)); 5558 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5559 QLA82XX_CAM_RAM_DB2); 5560 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5561 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5562 ((uint8_t *)ha->nx_pcibase); 5563 } 5564 5565 return 0; 5566 iospace_error_exit: 5567 return -ENOMEM; 5568 } 5569 5570 /*** 5571 * qla4xxx_iospace_config - maps registers 5572 * @ha: pointer to adapter structure 5573 * 5574 * This routines maps HBA's registers from the pci address space 5575 * into the kernel virtual address space for memory mapped i/o. 5576 **/ 5577 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5578 { 5579 unsigned long pio, pio_len, pio_flags; 5580 unsigned long mmio, mmio_len, mmio_flags; 5581 5582 pio = pci_resource_start(ha->pdev, 0); 5583 pio_len = pci_resource_len(ha->pdev, 0); 5584 pio_flags = pci_resource_flags(ha->pdev, 0); 5585 if (pio_flags & IORESOURCE_IO) { 5586 if (pio_len < MIN_IOBASE_LEN) { 5587 ql4_printk(KERN_WARNING, ha, 5588 "Invalid PCI I/O region size\n"); 5589 pio = 0; 5590 } 5591 } else { 5592 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5593 pio = 0; 5594 } 5595 5596 /* Use MMIO operations for all accesses. */ 5597 mmio = pci_resource_start(ha->pdev, 1); 5598 mmio_len = pci_resource_len(ha->pdev, 1); 5599 mmio_flags = pci_resource_flags(ha->pdev, 1); 5600 5601 if (!(mmio_flags & IORESOURCE_MEM)) { 5602 ql4_printk(KERN_ERR, ha, 5603 "region #0 not an MMIO resource, aborting\n"); 5604 5605 goto iospace_error_exit; 5606 } 5607 5608 if (mmio_len < MIN_IOBASE_LEN) { 5609 ql4_printk(KERN_ERR, ha, 5610 "Invalid PCI mem region size, aborting\n"); 5611 goto iospace_error_exit; 5612 } 5613 5614 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5615 ql4_printk(KERN_WARNING, ha, 5616 "Failed to reserve PIO/MMIO regions\n"); 5617 5618 goto iospace_error_exit; 5619 } 5620 5621 ha->pio_address = pio; 5622 ha->pio_length = pio_len; 5623 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5624 if (!ha->reg) { 5625 ql4_printk(KERN_ERR, ha, 5626 "cannot remap MMIO, aborting\n"); 5627 5628 goto iospace_error_exit; 5629 } 5630 5631 return 0; 5632 5633 iospace_error_exit: 5634 return -ENOMEM; 5635 } 5636 5637 static struct isp_operations qla4xxx_isp_ops = { 5638 .iospace_config = qla4xxx_iospace_config, 5639 .pci_config = qla4xxx_pci_config, 5640 .disable_intrs = qla4xxx_disable_intrs, 5641 .enable_intrs = qla4xxx_enable_intrs, 5642 .start_firmware = qla4xxx_start_firmware, 5643 .intr_handler = qla4xxx_intr_handler, 5644 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5645 .reset_chip = qla4xxx_soft_reset, 5646 .reset_firmware = qla4xxx_hw_reset, 5647 .queue_iocb = qla4xxx_queue_iocb, 5648 .complete_iocb = qla4xxx_complete_iocb, 5649 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5650 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5651 .get_sys_info = qla4xxx_get_sys_info, 5652 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5653 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5654 }; 5655 5656 static struct isp_operations qla4_82xx_isp_ops = { 5657 .iospace_config = qla4_8xxx_iospace_config, 5658 .pci_config = qla4_8xxx_pci_config, 5659 .disable_intrs = qla4_82xx_disable_intrs, 5660 .enable_intrs = qla4_82xx_enable_intrs, 5661 .start_firmware = qla4_8xxx_load_risc, 5662 .restart_firmware = qla4_82xx_try_start_fw, 5663 .intr_handler = qla4_82xx_intr_handler, 5664 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5665 .need_reset = qla4_8xxx_need_reset, 5666 .reset_chip = qla4_82xx_isp_reset, 5667 .reset_firmware = qla4_8xxx_stop_firmware, 5668 .queue_iocb = qla4_82xx_queue_iocb, 5669 .complete_iocb = qla4_82xx_complete_iocb, 5670 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5671 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5672 .get_sys_info = qla4_8xxx_get_sys_info, 5673 .rd_reg_direct = qla4_82xx_rd_32, 5674 .wr_reg_direct = qla4_82xx_wr_32, 5675 .rd_reg_indirect = qla4_82xx_md_rd_32, 5676 .wr_reg_indirect = qla4_82xx_md_wr_32, 5677 .idc_lock = qla4_82xx_idc_lock, 5678 .idc_unlock = qla4_82xx_idc_unlock, 5679 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5680 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5681 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5682 }; 5683 5684 static struct isp_operations qla4_83xx_isp_ops = { 5685 .iospace_config = qla4_8xxx_iospace_config, 5686 .pci_config = qla4_8xxx_pci_config, 5687 .disable_intrs = qla4_83xx_disable_intrs, 5688 .enable_intrs = qla4_83xx_enable_intrs, 5689 .start_firmware = qla4_8xxx_load_risc, 5690 .restart_firmware = qla4_83xx_start_firmware, 5691 .intr_handler = qla4_83xx_intr_handler, 5692 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5693 .need_reset = qla4_8xxx_need_reset, 5694 .reset_chip = qla4_83xx_isp_reset, 5695 .reset_firmware = qla4_8xxx_stop_firmware, 5696 .queue_iocb = qla4_83xx_queue_iocb, 5697 .complete_iocb = qla4_83xx_complete_iocb, 5698 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5699 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5700 .get_sys_info = qla4_8xxx_get_sys_info, 5701 .rd_reg_direct = qla4_83xx_rd_reg, 5702 .wr_reg_direct = qla4_83xx_wr_reg, 5703 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5704 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5705 .idc_lock = qla4_83xx_drv_lock, 5706 .idc_unlock = qla4_83xx_drv_unlock, 5707 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5708 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5709 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5710 }; 5711 5712 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5713 { 5714 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5715 } 5716 5717 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5718 { 5719 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5720 } 5721 5722 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5723 { 5724 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5725 } 5726 5727 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5728 { 5729 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5730 } 5731 5732 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5733 { 5734 struct scsi_qla_host *ha = data; 5735 char *str = buf; 5736 int rc; 5737 5738 switch (type) { 5739 case ISCSI_BOOT_ETH_FLAGS: 5740 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5741 break; 5742 case ISCSI_BOOT_ETH_INDEX: 5743 rc = sprintf(str, "0\n"); 5744 break; 5745 case ISCSI_BOOT_ETH_MAC: 5746 rc = sysfs_format_mac(str, ha->my_mac, 5747 MAC_ADDR_LEN); 5748 break; 5749 default: 5750 rc = -ENOSYS; 5751 break; 5752 } 5753 return rc; 5754 } 5755 5756 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5757 { 5758 int rc; 5759 5760 switch (type) { 5761 case ISCSI_BOOT_ETH_FLAGS: 5762 case ISCSI_BOOT_ETH_MAC: 5763 case ISCSI_BOOT_ETH_INDEX: 5764 rc = S_IRUGO; 5765 break; 5766 default: 5767 rc = 0; 5768 break; 5769 } 5770 return rc; 5771 } 5772 5773 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5774 { 5775 struct scsi_qla_host *ha = data; 5776 char *str = buf; 5777 int rc; 5778 5779 switch (type) { 5780 case ISCSI_BOOT_INI_INITIATOR_NAME: 5781 rc = sprintf(str, "%s\n", ha->name_string); 5782 break; 5783 default: 5784 rc = -ENOSYS; 5785 break; 5786 } 5787 return rc; 5788 } 5789 5790 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5791 { 5792 int rc; 5793 5794 switch (type) { 5795 case ISCSI_BOOT_INI_INITIATOR_NAME: 5796 rc = S_IRUGO; 5797 break; 5798 default: 5799 rc = 0; 5800 break; 5801 } 5802 return rc; 5803 } 5804 5805 static ssize_t 5806 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5807 char *buf) 5808 { 5809 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5810 char *str = buf; 5811 int rc; 5812 5813 switch (type) { 5814 case ISCSI_BOOT_TGT_NAME: 5815 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5816 break; 5817 case ISCSI_BOOT_TGT_IP_ADDR: 5818 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5819 rc = sprintf(buf, "%pI4\n", 5820 &boot_conn->dest_ipaddr.ip_address); 5821 else 5822 rc = sprintf(str, "%pI6\n", 5823 &boot_conn->dest_ipaddr.ip_address); 5824 break; 5825 case ISCSI_BOOT_TGT_PORT: 5826 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5827 break; 5828 case ISCSI_BOOT_TGT_CHAP_NAME: 5829 rc = sprintf(str, "%.*s\n", 5830 boot_conn->chap.target_chap_name_length, 5831 (char *)&boot_conn->chap.target_chap_name); 5832 break; 5833 case ISCSI_BOOT_TGT_CHAP_SECRET: 5834 rc = sprintf(str, "%.*s\n", 5835 boot_conn->chap.target_secret_length, 5836 (char *)&boot_conn->chap.target_secret); 5837 break; 5838 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5839 rc = sprintf(str, "%.*s\n", 5840 boot_conn->chap.intr_chap_name_length, 5841 (char *)&boot_conn->chap.intr_chap_name); 5842 break; 5843 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5844 rc = sprintf(str, "%.*s\n", 5845 boot_conn->chap.intr_secret_length, 5846 (char *)&boot_conn->chap.intr_secret); 5847 break; 5848 case ISCSI_BOOT_TGT_FLAGS: 5849 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5850 break; 5851 case ISCSI_BOOT_TGT_NIC_ASSOC: 5852 rc = sprintf(str, "0\n"); 5853 break; 5854 default: 5855 rc = -ENOSYS; 5856 break; 5857 } 5858 return rc; 5859 } 5860 5861 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 5862 { 5863 struct scsi_qla_host *ha = data; 5864 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 5865 5866 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5867 } 5868 5869 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5870 { 5871 struct scsi_qla_host *ha = data; 5872 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5873 5874 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5875 } 5876 5877 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5878 { 5879 int rc; 5880 5881 switch (type) { 5882 case ISCSI_BOOT_TGT_NAME: 5883 case ISCSI_BOOT_TGT_IP_ADDR: 5884 case ISCSI_BOOT_TGT_PORT: 5885 case ISCSI_BOOT_TGT_CHAP_NAME: 5886 case ISCSI_BOOT_TGT_CHAP_SECRET: 5887 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5888 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5889 case ISCSI_BOOT_TGT_NIC_ASSOC: 5890 case ISCSI_BOOT_TGT_FLAGS: 5891 rc = S_IRUGO; 5892 break; 5893 default: 5894 rc = 0; 5895 break; 5896 } 5897 return rc; 5898 } 5899 5900 static void qla4xxx_boot_release(void *data) 5901 { 5902 struct scsi_qla_host *ha = data; 5903 5904 scsi_host_put(ha->host); 5905 } 5906 5907 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5908 { 5909 dma_addr_t buf_dma; 5910 uint32_t addr, pri_addr, sec_addr; 5911 uint32_t offset; 5912 uint16_t func_num; 5913 uint8_t val; 5914 uint8_t *buf = NULL; 5915 size_t size = 13 * sizeof(uint8_t); 5916 int ret = QLA_SUCCESS; 5917 5918 func_num = PCI_FUNC(ha->pdev->devfn); 5919 5920 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5921 __func__, ha->pdev->device, func_num); 5922 5923 if (is_qla40XX(ha)) { 5924 if (func_num == 1) { 5925 addr = NVRAM_PORT0_BOOT_MODE; 5926 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5927 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5928 } else if (func_num == 3) { 5929 addr = NVRAM_PORT1_BOOT_MODE; 5930 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5931 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5932 } else { 5933 ret = QLA_ERROR; 5934 goto exit_boot_info; 5935 } 5936 5937 /* Check Boot Mode */ 5938 val = rd_nvram_byte(ha, addr); 5939 if (!(val & 0x07)) { 5940 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5941 "options : 0x%x\n", __func__, val)); 5942 ret = QLA_ERROR; 5943 goto exit_boot_info; 5944 } 5945 5946 /* get primary valid target index */ 5947 val = rd_nvram_byte(ha, pri_addr); 5948 if (val & BIT_7) 5949 ddb_index[0] = (val & 0x7f); 5950 5951 /* get secondary valid target index */ 5952 val = rd_nvram_byte(ha, sec_addr); 5953 if (val & BIT_7) 5954 ddb_index[1] = (val & 0x7f); 5955 goto exit_boot_info; 5956 } else if (is_qla80XX(ha)) { 5957 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5958 &buf_dma, GFP_KERNEL); 5959 if (!buf) { 5960 DEBUG2(ql4_printk(KERN_ERR, ha, 5961 "%s: Unable to allocate dma buffer\n", 5962 __func__)); 5963 ret = QLA_ERROR; 5964 goto exit_boot_info; 5965 } 5966 5967 if (ha->port_num == 0) 5968 offset = BOOT_PARAM_OFFSET_PORT0; 5969 else if (ha->port_num == 1) 5970 offset = BOOT_PARAM_OFFSET_PORT1; 5971 else { 5972 ret = QLA_ERROR; 5973 goto exit_boot_info_free; 5974 } 5975 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5976 offset; 5977 if (qla4xxx_get_flash(ha, buf_dma, addr, 5978 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5979 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5980 " failed\n", ha->host_no, __func__)); 5981 ret = QLA_ERROR; 5982 goto exit_boot_info_free; 5983 } 5984 /* Check Boot Mode */ 5985 if (!(buf[1] & 0x07)) { 5986 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5987 " : 0x%x\n", buf[1])); 5988 ret = QLA_ERROR; 5989 goto exit_boot_info_free; 5990 } 5991 5992 /* get primary valid target index */ 5993 if (buf[2] & BIT_7) 5994 ddb_index[0] = buf[2] & 0x7f; 5995 5996 /* get secondary valid target index */ 5997 if (buf[11] & BIT_7) 5998 ddb_index[1] = buf[11] & 0x7f; 5999 } else { 6000 ret = QLA_ERROR; 6001 goto exit_boot_info; 6002 } 6003 6004 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 6005 " target ID %d\n", __func__, ddb_index[0], 6006 ddb_index[1])); 6007 6008 exit_boot_info_free: 6009 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 6010 exit_boot_info: 6011 ha->pri_ddb_idx = ddb_index[0]; 6012 ha->sec_ddb_idx = ddb_index[1]; 6013 return ret; 6014 } 6015 6016 /** 6017 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 6018 * @ha: pointer to adapter structure 6019 * @username: CHAP username to be returned 6020 * @password: CHAP password to be returned 6021 * 6022 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 6023 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 6024 * So from the CHAP cache find the first BIDI CHAP entry and set it 6025 * to the boot record in sysfs. 6026 **/ 6027 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 6028 char *password) 6029 { 6030 int i, ret = -EINVAL; 6031 int max_chap_entries = 0; 6032 struct ql4_chap_table *chap_table; 6033 6034 if (is_qla80XX(ha)) 6035 max_chap_entries = (ha->hw.flt_chap_size / 2) / 6036 sizeof(struct ql4_chap_table); 6037 else 6038 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 6039 6040 if (!ha->chap_list) { 6041 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 6042 return ret; 6043 } 6044 6045 mutex_lock(&ha->chap_sem); 6046 for (i = 0; i < max_chap_entries; i++) { 6047 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 6048 if (chap_table->cookie != 6049 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 6050 continue; 6051 } 6052 6053 if (chap_table->flags & BIT_7) /* local */ 6054 continue; 6055 6056 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6057 continue; 6058 6059 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6060 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6061 ret = 0; 6062 break; 6063 } 6064 mutex_unlock(&ha->chap_sem); 6065 6066 return ret; 6067 } 6068 6069 6070 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6071 struct ql4_boot_session_info *boot_sess, 6072 uint16_t ddb_index) 6073 { 6074 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6075 struct dev_db_entry *fw_ddb_entry; 6076 dma_addr_t fw_ddb_entry_dma; 6077 uint16_t idx; 6078 uint16_t options; 6079 int ret = QLA_SUCCESS; 6080 6081 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6082 &fw_ddb_entry_dma, GFP_KERNEL); 6083 if (!fw_ddb_entry) { 6084 DEBUG2(ql4_printk(KERN_ERR, ha, 6085 "%s: Unable to allocate dma buffer.\n", 6086 __func__)); 6087 ret = QLA_ERROR; 6088 return ret; 6089 } 6090 6091 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6092 fw_ddb_entry_dma, ddb_index)) { 6093 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6094 "index [%d]\n", __func__, ddb_index)); 6095 ret = QLA_ERROR; 6096 goto exit_boot_target; 6097 } 6098 6099 /* Update target name and IP from DDB */ 6100 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6101 min(sizeof(boot_sess->target_name), 6102 sizeof(fw_ddb_entry->iscsi_name))); 6103 6104 options = le16_to_cpu(fw_ddb_entry->options); 6105 if (options & DDB_OPT_IPV6_DEVICE) { 6106 memcpy(&boot_conn->dest_ipaddr.ip_address, 6107 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6108 } else { 6109 boot_conn->dest_ipaddr.ip_type = 0x1; 6110 memcpy(&boot_conn->dest_ipaddr.ip_address, 6111 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6112 } 6113 6114 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6115 6116 /* update chap information */ 6117 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6118 6119 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6120 6121 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6122 6123 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6124 target_chap_name, 6125 (char *)&boot_conn->chap.target_secret, 6126 idx); 6127 if (ret) { 6128 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6129 ret = QLA_ERROR; 6130 goto exit_boot_target; 6131 } 6132 6133 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6134 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6135 } 6136 6137 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6138 6139 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6140 6141 ret = qla4xxx_get_bidi_chap(ha, 6142 (char *)&boot_conn->chap.intr_chap_name, 6143 (char *)&boot_conn->chap.intr_secret); 6144 6145 if (ret) { 6146 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6147 ret = QLA_ERROR; 6148 goto exit_boot_target; 6149 } 6150 6151 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6152 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6153 } 6154 6155 exit_boot_target: 6156 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6157 fw_ddb_entry, fw_ddb_entry_dma); 6158 return ret; 6159 } 6160 6161 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6162 { 6163 uint16_t ddb_index[2]; 6164 int ret = QLA_ERROR; 6165 int rval; 6166 6167 memset(ddb_index, 0, sizeof(ddb_index)); 6168 ddb_index[0] = 0xffff; 6169 ddb_index[1] = 0xffff; 6170 ret = get_fw_boot_info(ha, ddb_index); 6171 if (ret != QLA_SUCCESS) { 6172 DEBUG2(ql4_printk(KERN_INFO, ha, 6173 "%s: No boot target configured.\n", __func__)); 6174 return ret; 6175 } 6176 6177 if (ql4xdisablesysfsboot) 6178 return QLA_SUCCESS; 6179 6180 if (ddb_index[0] == 0xffff) 6181 goto sec_target; 6182 6183 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6184 ddb_index[0]); 6185 if (rval != QLA_SUCCESS) { 6186 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6187 "configured\n", __func__)); 6188 } else 6189 ret = QLA_SUCCESS; 6190 6191 sec_target: 6192 if (ddb_index[1] == 0xffff) 6193 goto exit_get_boot_info; 6194 6195 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6196 ddb_index[1]); 6197 if (rval != QLA_SUCCESS) { 6198 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6199 " configured\n", __func__)); 6200 } else 6201 ret = QLA_SUCCESS; 6202 6203 exit_get_boot_info: 6204 return ret; 6205 } 6206 6207 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6208 { 6209 struct iscsi_boot_kobj *boot_kobj; 6210 6211 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6212 return QLA_ERROR; 6213 6214 if (ql4xdisablesysfsboot) { 6215 ql4_printk(KERN_INFO, ha, 6216 "%s: syfsboot disabled - driver will trigger login " 6217 "and publish session for discovery .\n", __func__); 6218 return QLA_SUCCESS; 6219 } 6220 6221 6222 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6223 if (!ha->boot_kset) 6224 goto kset_free; 6225 6226 if (!scsi_host_get(ha->host)) 6227 goto kset_free; 6228 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6229 qla4xxx_show_boot_tgt_pri_info, 6230 qla4xxx_tgt_get_attr_visibility, 6231 qla4xxx_boot_release); 6232 if (!boot_kobj) 6233 goto put_host; 6234 6235 if (!scsi_host_get(ha->host)) 6236 goto kset_free; 6237 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6238 qla4xxx_show_boot_tgt_sec_info, 6239 qla4xxx_tgt_get_attr_visibility, 6240 qla4xxx_boot_release); 6241 if (!boot_kobj) 6242 goto put_host; 6243 6244 if (!scsi_host_get(ha->host)) 6245 goto kset_free; 6246 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6247 qla4xxx_show_boot_ini_info, 6248 qla4xxx_ini_get_attr_visibility, 6249 qla4xxx_boot_release); 6250 if (!boot_kobj) 6251 goto put_host; 6252 6253 if (!scsi_host_get(ha->host)) 6254 goto kset_free; 6255 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6256 qla4xxx_show_boot_eth_info, 6257 qla4xxx_eth_get_attr_visibility, 6258 qla4xxx_boot_release); 6259 if (!boot_kobj) 6260 goto put_host; 6261 6262 return QLA_SUCCESS; 6263 6264 put_host: 6265 scsi_host_put(ha->host); 6266 kset_free: 6267 iscsi_boot_destroy_kset(ha->boot_kset); 6268 return -ENOMEM; 6269 } 6270 6271 6272 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6273 struct ql4_tuple_ddb *tddb) 6274 { 6275 struct iscsi_cls_session *cls_sess; 6276 struct iscsi_cls_conn *cls_conn; 6277 struct iscsi_session *sess; 6278 struct iscsi_conn *conn; 6279 6280 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6281 cls_sess = ddb_entry->sess; 6282 sess = cls_sess->dd_data; 6283 cls_conn = ddb_entry->conn; 6284 conn = cls_conn->dd_data; 6285 6286 tddb->tpgt = sess->tpgt; 6287 tddb->port = conn->persistent_port; 6288 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 6289 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 6290 } 6291 6292 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6293 struct ql4_tuple_ddb *tddb, 6294 uint8_t *flash_isid) 6295 { 6296 uint16_t options = 0; 6297 6298 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6299 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6300 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6301 6302 options = le16_to_cpu(fw_ddb_entry->options); 6303 if (options & DDB_OPT_IPV6_DEVICE) 6304 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6305 else 6306 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6307 6308 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6309 6310 if (flash_isid == NULL) 6311 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6312 sizeof(tddb->isid)); 6313 else 6314 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6315 } 6316 6317 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6318 struct ql4_tuple_ddb *old_tddb, 6319 struct ql4_tuple_ddb *new_tddb, 6320 uint8_t is_isid_compare) 6321 { 6322 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6323 return QLA_ERROR; 6324 6325 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6326 return QLA_ERROR; 6327 6328 if (old_tddb->port != new_tddb->port) 6329 return QLA_ERROR; 6330 6331 /* For multi sessions, driver generates the ISID, so do not compare 6332 * ISID in reset path since it would be a comparison between the 6333 * driver generated ISID and firmware generated ISID. This could 6334 * lead to adding duplicated DDBs in the list as driver generated 6335 * ISID would not match firmware generated ISID. 6336 */ 6337 if (is_isid_compare) { 6338 DEBUG2(ql4_printk(KERN_INFO, ha, 6339 "%s: old ISID [%pmR] New ISID [%pmR]\n", 6340 __func__, old_tddb->isid, new_tddb->isid)); 6341 6342 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6343 sizeof(old_tddb->isid))) 6344 return QLA_ERROR; 6345 } 6346 6347 DEBUG2(ql4_printk(KERN_INFO, ha, 6348 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6349 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6350 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6351 new_tddb->ip_addr, new_tddb->iscsi_name)); 6352 6353 return QLA_SUCCESS; 6354 } 6355 6356 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6357 struct dev_db_entry *fw_ddb_entry, 6358 uint32_t *index) 6359 { 6360 struct ddb_entry *ddb_entry; 6361 struct ql4_tuple_ddb *fw_tddb = NULL; 6362 struct ql4_tuple_ddb *tmp_tddb = NULL; 6363 int idx; 6364 int ret = QLA_ERROR; 6365 6366 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6367 if (!fw_tddb) { 6368 DEBUG2(ql4_printk(KERN_WARNING, ha, 6369 "Memory Allocation failed.\n")); 6370 ret = QLA_SUCCESS; 6371 goto exit_check; 6372 } 6373 6374 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6375 if (!tmp_tddb) { 6376 DEBUG2(ql4_printk(KERN_WARNING, ha, 6377 "Memory Allocation failed.\n")); 6378 ret = QLA_SUCCESS; 6379 goto exit_check; 6380 } 6381 6382 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6383 6384 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6385 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6386 if (ddb_entry == NULL) 6387 continue; 6388 6389 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6390 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6391 ret = QLA_SUCCESS; /* found */ 6392 if (index != NULL) 6393 *index = idx; 6394 goto exit_check; 6395 } 6396 } 6397 6398 exit_check: 6399 if (fw_tddb) 6400 vfree(fw_tddb); 6401 if (tmp_tddb) 6402 vfree(tmp_tddb); 6403 return ret; 6404 } 6405 6406 /** 6407 * qla4xxx_check_existing_isid - check if target with same isid exist 6408 * in target list 6409 * @list_nt: list of target 6410 * @isid: isid to check 6411 * 6412 * This routine return QLA_SUCCESS if target with same isid exist 6413 **/ 6414 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6415 { 6416 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6417 struct dev_db_entry *fw_ddb_entry; 6418 6419 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6420 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6421 6422 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6423 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6424 return QLA_SUCCESS; 6425 } 6426 } 6427 return QLA_ERROR; 6428 } 6429 6430 /** 6431 * qla4xxx_update_isid - compare ddbs and updated isid 6432 * @ha: Pointer to host adapter structure. 6433 * @list_nt: list of nt target 6434 * @fw_ddb_entry: firmware ddb entry 6435 * 6436 * This routine update isid if ddbs have same iqn, same isid and 6437 * different IP addr. 6438 * Return QLA_SUCCESS if isid is updated. 6439 **/ 6440 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6441 struct list_head *list_nt, 6442 struct dev_db_entry *fw_ddb_entry) 6443 { 6444 uint8_t base_value, i; 6445 6446 base_value = fw_ddb_entry->isid[1] & 0x1f; 6447 for (i = 0; i < 8; i++) { 6448 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6449 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6450 break; 6451 } 6452 6453 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6454 return QLA_ERROR; 6455 6456 return QLA_SUCCESS; 6457 } 6458 6459 /** 6460 * qla4xxx_should_update_isid - check if isid need to update 6461 * @ha: Pointer to host adapter structure. 6462 * @old_tddb: ddb tuple 6463 * @new_tddb: ddb tuple 6464 * 6465 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6466 * same isid 6467 **/ 6468 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6469 struct ql4_tuple_ddb *old_tddb, 6470 struct ql4_tuple_ddb *new_tddb) 6471 { 6472 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6473 /* Same ip */ 6474 if (old_tddb->port == new_tddb->port) 6475 return QLA_ERROR; 6476 } 6477 6478 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6479 /* different iqn */ 6480 return QLA_ERROR; 6481 6482 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6483 sizeof(old_tddb->isid))) 6484 /* different isid */ 6485 return QLA_ERROR; 6486 6487 return QLA_SUCCESS; 6488 } 6489 6490 /** 6491 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6492 * @ha: Pointer to host adapter structure. 6493 * @list_nt: list of nt target. 6494 * @fw_ddb_entry: firmware ddb entry. 6495 * 6496 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6497 * duplicate ddb in list_nt. 6498 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6499 * Note: This function also update isid of DDB if required. 6500 **/ 6501 6502 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6503 struct list_head *list_nt, 6504 struct dev_db_entry *fw_ddb_entry) 6505 { 6506 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6507 struct ql4_tuple_ddb *fw_tddb = NULL; 6508 struct ql4_tuple_ddb *tmp_tddb = NULL; 6509 int rval, ret = QLA_ERROR; 6510 6511 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6512 if (!fw_tddb) { 6513 DEBUG2(ql4_printk(KERN_WARNING, ha, 6514 "Memory Allocation failed.\n")); 6515 ret = QLA_SUCCESS; 6516 goto exit_check; 6517 } 6518 6519 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6520 if (!tmp_tddb) { 6521 DEBUG2(ql4_printk(KERN_WARNING, ha, 6522 "Memory Allocation failed.\n")); 6523 ret = QLA_SUCCESS; 6524 goto exit_check; 6525 } 6526 6527 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6528 6529 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6530 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6531 nt_ddb_idx->flash_isid); 6532 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6533 /* found duplicate ddb */ 6534 if (ret == QLA_SUCCESS) 6535 goto exit_check; 6536 } 6537 6538 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6539 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6540 6541 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6542 if (ret == QLA_SUCCESS) { 6543 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6544 if (rval == QLA_SUCCESS) 6545 ret = QLA_ERROR; 6546 else 6547 ret = QLA_SUCCESS; 6548 6549 goto exit_check; 6550 } 6551 } 6552 6553 exit_check: 6554 if (fw_tddb) 6555 vfree(fw_tddb); 6556 if (tmp_tddb) 6557 vfree(tmp_tddb); 6558 return ret; 6559 } 6560 6561 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6562 { 6563 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6564 6565 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6566 list_del_init(&ddb_idx->list); 6567 vfree(ddb_idx); 6568 } 6569 } 6570 6571 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6572 struct dev_db_entry *fw_ddb_entry) 6573 { 6574 struct iscsi_endpoint *ep; 6575 struct sockaddr_in *addr; 6576 struct sockaddr_in6 *addr6; 6577 struct sockaddr *t_addr; 6578 struct sockaddr_storage *dst_addr; 6579 char *ip; 6580 6581 /* TODO: need to destroy on unload iscsi_endpoint*/ 6582 dst_addr = vmalloc(sizeof(*dst_addr)); 6583 if (!dst_addr) 6584 return NULL; 6585 6586 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6587 t_addr = (struct sockaddr *)dst_addr; 6588 t_addr->sa_family = AF_INET6; 6589 addr6 = (struct sockaddr_in6 *)dst_addr; 6590 ip = (char *)&addr6->sin6_addr; 6591 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6592 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6593 6594 } else { 6595 t_addr = (struct sockaddr *)dst_addr; 6596 t_addr->sa_family = AF_INET; 6597 addr = (struct sockaddr_in *)dst_addr; 6598 ip = (char *)&addr->sin_addr; 6599 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6600 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6601 } 6602 6603 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6604 vfree(dst_addr); 6605 return ep; 6606 } 6607 6608 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6609 { 6610 if (ql4xdisablesysfsboot) 6611 return QLA_SUCCESS; 6612 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6613 return QLA_ERROR; 6614 return QLA_SUCCESS; 6615 } 6616 6617 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6618 struct ddb_entry *ddb_entry, 6619 uint16_t idx) 6620 { 6621 uint16_t def_timeout; 6622 6623 ddb_entry->ddb_type = FLASH_DDB; 6624 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6625 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6626 ddb_entry->ha = ha; 6627 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6628 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6629 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6630 6631 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6632 atomic_set(&ddb_entry->relogin_timer, 0); 6633 atomic_set(&ddb_entry->relogin_retry_count, 0); 6634 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6635 ddb_entry->default_relogin_timeout = 6636 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6637 def_timeout : LOGIN_TOV; 6638 ddb_entry->default_time2wait = 6639 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6640 6641 if (ql4xdisablesysfsboot && 6642 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6643 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6644 } 6645 6646 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6647 { 6648 uint32_t idx = 0; 6649 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6650 uint32_t sts[MBOX_REG_COUNT]; 6651 uint32_t ip_state; 6652 unsigned long wtime; 6653 int ret; 6654 6655 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6656 do { 6657 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6658 if (ip_idx[idx] == -1) 6659 continue; 6660 6661 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6662 6663 if (ret == QLA_ERROR) { 6664 ip_idx[idx] = -1; 6665 continue; 6666 } 6667 6668 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6669 6670 DEBUG2(ql4_printk(KERN_INFO, ha, 6671 "Waiting for IP state for idx = %d, state = 0x%x\n", 6672 ip_idx[idx], ip_state)); 6673 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6674 ip_state == IP_ADDRSTATE_INVALID || 6675 ip_state == IP_ADDRSTATE_PREFERRED || 6676 ip_state == IP_ADDRSTATE_DEPRICATED || 6677 ip_state == IP_ADDRSTATE_DISABLING) 6678 ip_idx[idx] = -1; 6679 } 6680 6681 /* Break if all IP states checked */ 6682 if ((ip_idx[0] == -1) && 6683 (ip_idx[1] == -1) && 6684 (ip_idx[2] == -1) && 6685 (ip_idx[3] == -1)) 6686 break; 6687 schedule_timeout_uninterruptible(HZ); 6688 } while (time_after(wtime, jiffies)); 6689 } 6690 6691 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6692 struct dev_db_entry *flash_ddb_entry) 6693 { 6694 uint16_t options = 0; 6695 size_t ip_len = IP_ADDR_LEN; 6696 6697 options = le16_to_cpu(fw_ddb_entry->options); 6698 if (options & DDB_OPT_IPV6_DEVICE) 6699 ip_len = IPv6_ADDR_LEN; 6700 6701 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6702 return QLA_ERROR; 6703 6704 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6705 sizeof(fw_ddb_entry->isid))) 6706 return QLA_ERROR; 6707 6708 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6709 sizeof(fw_ddb_entry->port))) 6710 return QLA_ERROR; 6711 6712 return QLA_SUCCESS; 6713 } 6714 6715 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6716 struct dev_db_entry *fw_ddb_entry, 6717 uint32_t fw_idx, uint32_t *flash_index) 6718 { 6719 struct dev_db_entry *flash_ddb_entry; 6720 dma_addr_t flash_ddb_entry_dma; 6721 uint32_t idx = 0; 6722 int max_ddbs; 6723 int ret = QLA_ERROR, status; 6724 6725 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6726 MAX_DEV_DB_ENTRIES; 6727 6728 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6729 &flash_ddb_entry_dma); 6730 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6731 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6732 goto exit_find_st_idx; 6733 } 6734 6735 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6736 flash_ddb_entry_dma, fw_idx); 6737 if (status == QLA_SUCCESS) { 6738 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6739 if (status == QLA_SUCCESS) { 6740 *flash_index = fw_idx; 6741 ret = QLA_SUCCESS; 6742 goto exit_find_st_idx; 6743 } 6744 } 6745 6746 for (idx = 0; idx < max_ddbs; idx++) { 6747 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6748 flash_ddb_entry_dma, idx); 6749 if (status == QLA_ERROR) 6750 continue; 6751 6752 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6753 if (status == QLA_SUCCESS) { 6754 *flash_index = idx; 6755 ret = QLA_SUCCESS; 6756 goto exit_find_st_idx; 6757 } 6758 } 6759 6760 if (idx == max_ddbs) 6761 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6762 fw_idx); 6763 6764 exit_find_st_idx: 6765 if (flash_ddb_entry) 6766 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6767 flash_ddb_entry_dma); 6768 6769 return ret; 6770 } 6771 6772 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6773 struct list_head *list_st) 6774 { 6775 struct qla_ddb_index *st_ddb_idx; 6776 int max_ddbs; 6777 int fw_idx_size; 6778 struct dev_db_entry *fw_ddb_entry; 6779 dma_addr_t fw_ddb_dma; 6780 int ret; 6781 uint32_t idx = 0, next_idx = 0; 6782 uint32_t state = 0, conn_err = 0; 6783 uint32_t flash_index = -1; 6784 uint16_t conn_id = 0; 6785 6786 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6787 &fw_ddb_dma); 6788 if (fw_ddb_entry == NULL) { 6789 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6790 goto exit_st_list; 6791 } 6792 6793 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6794 MAX_DEV_DB_ENTRIES; 6795 fw_idx_size = sizeof(struct qla_ddb_index); 6796 6797 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6798 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6799 NULL, &next_idx, &state, 6800 &conn_err, NULL, &conn_id); 6801 if (ret == QLA_ERROR) 6802 break; 6803 6804 /* Ignore DDB if invalid state (unassigned) */ 6805 if (state == DDB_DS_UNASSIGNED) 6806 goto continue_next_st; 6807 6808 /* Check if ST, add to the list_st */ 6809 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6810 goto continue_next_st; 6811 6812 st_ddb_idx = vzalloc(fw_idx_size); 6813 if (!st_ddb_idx) 6814 break; 6815 6816 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6817 &flash_index); 6818 if (ret == QLA_ERROR) { 6819 ql4_printk(KERN_ERR, ha, 6820 "No flash entry for ST at idx [%d]\n", idx); 6821 st_ddb_idx->flash_ddb_idx = idx; 6822 } else { 6823 ql4_printk(KERN_INFO, ha, 6824 "ST at idx [%d] is stored at flash [%d]\n", 6825 idx, flash_index); 6826 st_ddb_idx->flash_ddb_idx = flash_index; 6827 } 6828 6829 st_ddb_idx->fw_ddb_idx = idx; 6830 6831 list_add_tail(&st_ddb_idx->list, list_st); 6832 continue_next_st: 6833 if (next_idx == 0) 6834 break; 6835 } 6836 6837 exit_st_list: 6838 if (fw_ddb_entry) 6839 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6840 } 6841 6842 /** 6843 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6844 * @ha: pointer to adapter structure 6845 * @list_ddb: List from which failed ddb to be removed 6846 * 6847 * Iterate over the list of DDBs and find and remove DDBs that are either in 6848 * no connection active state or failed state 6849 **/ 6850 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6851 struct list_head *list_ddb) 6852 { 6853 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6854 uint32_t next_idx = 0; 6855 uint32_t state = 0, conn_err = 0; 6856 int ret; 6857 6858 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6859 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6860 NULL, 0, NULL, &next_idx, &state, 6861 &conn_err, NULL, NULL); 6862 if (ret == QLA_ERROR) 6863 continue; 6864 6865 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6866 state == DDB_DS_SESSION_FAILED) { 6867 list_del_init(&ddb_idx->list); 6868 vfree(ddb_idx); 6869 } 6870 } 6871 } 6872 6873 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6874 struct ddb_entry *ddb_entry, 6875 struct dev_db_entry *fw_ddb_entry) 6876 { 6877 struct iscsi_cls_session *cls_sess; 6878 struct iscsi_session *sess; 6879 uint32_t max_ddbs = 0; 6880 uint16_t ddb_link = -1; 6881 6882 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6883 MAX_DEV_DB_ENTRIES; 6884 6885 cls_sess = ddb_entry->sess; 6886 sess = cls_sess->dd_data; 6887 6888 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6889 if (ddb_link < max_ddbs) 6890 sess->discovery_parent_idx = ddb_link; 6891 else 6892 sess->discovery_parent_idx = DDB_NO_LINK; 6893 } 6894 6895 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6896 struct dev_db_entry *fw_ddb_entry, 6897 int is_reset, uint16_t idx) 6898 { 6899 struct iscsi_cls_session *cls_sess; 6900 struct iscsi_session *sess; 6901 struct iscsi_cls_conn *cls_conn; 6902 struct iscsi_endpoint *ep; 6903 uint16_t cmds_max = 32; 6904 uint16_t conn_id = 0; 6905 uint32_t initial_cmdsn = 0; 6906 int ret = QLA_SUCCESS; 6907 6908 struct ddb_entry *ddb_entry = NULL; 6909 6910 /* Create session object, with INVALID_ENTRY, 6911 * the targer_id would get set when we issue the login 6912 */ 6913 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6914 cmds_max, sizeof(struct ddb_entry), 6915 sizeof(struct ql4_task_data), 6916 initial_cmdsn, INVALID_ENTRY); 6917 if (!cls_sess) { 6918 ret = QLA_ERROR; 6919 goto exit_setup; 6920 } 6921 6922 /* 6923 * so calling module_put function to decrement the 6924 * reference count. 6925 **/ 6926 module_put(qla4xxx_iscsi_transport.owner); 6927 sess = cls_sess->dd_data; 6928 ddb_entry = sess->dd_data; 6929 ddb_entry->sess = cls_sess; 6930 6931 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6932 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6933 sizeof(struct dev_db_entry)); 6934 6935 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6936 6937 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6938 6939 if (!cls_conn) { 6940 ret = QLA_ERROR; 6941 goto exit_setup; 6942 } 6943 6944 ddb_entry->conn = cls_conn; 6945 6946 /* Setup ep, for displaying attributes in sysfs */ 6947 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6948 if (ep) { 6949 ep->conn = cls_conn; 6950 cls_conn->ep = ep; 6951 } else { 6952 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6953 ret = QLA_ERROR; 6954 goto exit_setup; 6955 } 6956 6957 /* Update sess/conn params */ 6958 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6959 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6960 6961 if (is_reset == RESET_ADAPTER) { 6962 iscsi_block_session(cls_sess); 6963 /* Use the relogin path to discover new devices 6964 * by short-circuting the logic of setting 6965 * timer to relogin - instead set the flags 6966 * to initiate login right away. 6967 */ 6968 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6969 set_bit(DF_RELOGIN, &ddb_entry->flags); 6970 } 6971 6972 exit_setup: 6973 return ret; 6974 } 6975 6976 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6977 struct list_head *list_ddb, 6978 struct dev_db_entry *fw_ddb_entry) 6979 { 6980 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6981 uint16_t ddb_link; 6982 6983 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6984 6985 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6986 if (ddb_idx->fw_ddb_idx == ddb_link) { 6987 DEBUG2(ql4_printk(KERN_INFO, ha, 6988 "Updating NT parent idx from [%d] to [%d]\n", 6989 ddb_link, ddb_idx->flash_ddb_idx)); 6990 fw_ddb_entry->ddb_link = 6991 cpu_to_le16(ddb_idx->flash_ddb_idx); 6992 return; 6993 } 6994 } 6995 } 6996 6997 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 6998 struct list_head *list_nt, 6999 struct list_head *list_st, 7000 int is_reset) 7001 { 7002 struct dev_db_entry *fw_ddb_entry; 7003 struct ddb_entry *ddb_entry = NULL; 7004 dma_addr_t fw_ddb_dma; 7005 int max_ddbs; 7006 int fw_idx_size; 7007 int ret; 7008 uint32_t idx = 0, next_idx = 0; 7009 uint32_t state = 0, conn_err = 0; 7010 uint32_t ddb_idx = -1; 7011 uint16_t conn_id = 0; 7012 uint16_t ddb_link = -1; 7013 struct qla_ddb_index *nt_ddb_idx; 7014 7015 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7016 &fw_ddb_dma); 7017 if (fw_ddb_entry == NULL) { 7018 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7019 goto exit_nt_list; 7020 } 7021 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7022 MAX_DEV_DB_ENTRIES; 7023 fw_idx_size = sizeof(struct qla_ddb_index); 7024 7025 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7026 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7027 NULL, &next_idx, &state, 7028 &conn_err, NULL, &conn_id); 7029 if (ret == QLA_ERROR) 7030 break; 7031 7032 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 7033 goto continue_next_nt; 7034 7035 /* Check if NT, then add to list it */ 7036 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 7037 goto continue_next_nt; 7038 7039 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 7040 if (ddb_link < max_ddbs) 7041 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 7042 7043 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 7044 state == DDB_DS_SESSION_FAILED) && 7045 (is_reset == INIT_ADAPTER)) 7046 goto continue_next_nt; 7047 7048 DEBUG2(ql4_printk(KERN_INFO, ha, 7049 "Adding DDB to session = 0x%x\n", idx)); 7050 7051 if (is_reset == INIT_ADAPTER) { 7052 nt_ddb_idx = vmalloc(fw_idx_size); 7053 if (!nt_ddb_idx) 7054 break; 7055 7056 nt_ddb_idx->fw_ddb_idx = idx; 7057 7058 /* Copy original isid as it may get updated in function 7059 * qla4xxx_update_isid(). We need original isid in 7060 * function qla4xxx_compare_tuple_ddb to find duplicate 7061 * target */ 7062 memcpy(&nt_ddb_idx->flash_isid[0], 7063 &fw_ddb_entry->isid[0], 7064 sizeof(nt_ddb_idx->flash_isid)); 7065 7066 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7067 fw_ddb_entry); 7068 if (ret == QLA_SUCCESS) { 7069 /* free nt_ddb_idx and do not add to list_nt */ 7070 vfree(nt_ddb_idx); 7071 goto continue_next_nt; 7072 } 7073 7074 /* Copy updated isid */ 7075 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7076 sizeof(struct dev_db_entry)); 7077 7078 list_add_tail(&nt_ddb_idx->list, list_nt); 7079 } else if (is_reset == RESET_ADAPTER) { 7080 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7081 &ddb_idx); 7082 if (ret == QLA_SUCCESS) { 7083 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7084 ddb_idx); 7085 if (ddb_entry != NULL) 7086 qla4xxx_update_sess_disc_idx(ha, 7087 ddb_entry, 7088 fw_ddb_entry); 7089 goto continue_next_nt; 7090 } 7091 } 7092 7093 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7094 if (ret == QLA_ERROR) 7095 goto exit_nt_list; 7096 7097 continue_next_nt: 7098 if (next_idx == 0) 7099 break; 7100 } 7101 7102 exit_nt_list: 7103 if (fw_ddb_entry) 7104 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7105 } 7106 7107 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7108 struct list_head *list_nt, 7109 uint16_t target_id) 7110 { 7111 struct dev_db_entry *fw_ddb_entry; 7112 dma_addr_t fw_ddb_dma; 7113 int max_ddbs; 7114 int fw_idx_size; 7115 int ret; 7116 uint32_t idx = 0, next_idx = 0; 7117 uint32_t state = 0, conn_err = 0; 7118 uint16_t conn_id = 0; 7119 struct qla_ddb_index *nt_ddb_idx; 7120 7121 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7122 &fw_ddb_dma); 7123 if (fw_ddb_entry == NULL) { 7124 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7125 goto exit_new_nt_list; 7126 } 7127 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7128 MAX_DEV_DB_ENTRIES; 7129 fw_idx_size = sizeof(struct qla_ddb_index); 7130 7131 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7132 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7133 NULL, &next_idx, &state, 7134 &conn_err, NULL, &conn_id); 7135 if (ret == QLA_ERROR) 7136 break; 7137 7138 /* Check if NT, then add it to list */ 7139 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7140 goto continue_next_new_nt; 7141 7142 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7143 goto continue_next_new_nt; 7144 7145 DEBUG2(ql4_printk(KERN_INFO, ha, 7146 "Adding DDB to session = 0x%x\n", idx)); 7147 7148 nt_ddb_idx = vmalloc(fw_idx_size); 7149 if (!nt_ddb_idx) 7150 break; 7151 7152 nt_ddb_idx->fw_ddb_idx = idx; 7153 7154 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7155 if (ret == QLA_SUCCESS) { 7156 /* free nt_ddb_idx and do not add to list_nt */ 7157 vfree(nt_ddb_idx); 7158 goto continue_next_new_nt; 7159 } 7160 7161 if (target_id < max_ddbs) 7162 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7163 7164 list_add_tail(&nt_ddb_idx->list, list_nt); 7165 7166 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7167 idx); 7168 if (ret == QLA_ERROR) 7169 goto exit_new_nt_list; 7170 7171 continue_next_new_nt: 7172 if (next_idx == 0) 7173 break; 7174 } 7175 7176 exit_new_nt_list: 7177 if (fw_ddb_entry) 7178 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7179 } 7180 7181 /** 7182 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7183 * @dev: dev associated with the sysfs entry 7184 * @data: pointer to flashnode session object 7185 * 7186 * Returns: 7187 * 1: if flashnode entry is non-persistent 7188 * 0: if flashnode entry is persistent 7189 **/ 7190 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) 7191 { 7192 struct iscsi_bus_flash_session *fnode_sess; 7193 7194 if (!iscsi_flashnode_bus_match(dev, NULL)) 7195 return 0; 7196 7197 fnode_sess = iscsi_dev_to_flash_session(dev); 7198 7199 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7200 } 7201 7202 /** 7203 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7204 * @ha: pointer to host 7205 * @fw_ddb_entry: flash ddb data 7206 * @idx: target index 7207 * @user: if set then this call is made from userland else from kernel 7208 * 7209 * Returns: 7210 * On sucess: QLA_SUCCESS 7211 * On failure: QLA_ERROR 7212 * 7213 * This create separate sysfs entries for session and connection attributes of 7214 * the given fw ddb entry. 7215 * If this is invoked as a result of a userspace call then the entry is marked 7216 * as nonpersistent using flash_state field. 7217 **/ 7218 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7219 struct dev_db_entry *fw_ddb_entry, 7220 uint16_t *idx, int user) 7221 { 7222 struct iscsi_bus_flash_session *fnode_sess = NULL; 7223 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7224 int rc = QLA_ERROR; 7225 7226 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7227 &qla4xxx_iscsi_transport, 0); 7228 if (!fnode_sess) { 7229 ql4_printk(KERN_ERR, ha, 7230 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7231 __func__, *idx, ha->host_no); 7232 goto exit_tgt_create; 7233 } 7234 7235 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7236 &qla4xxx_iscsi_transport, 0); 7237 if (!fnode_conn) { 7238 ql4_printk(KERN_ERR, ha, 7239 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7240 __func__, *idx, ha->host_no); 7241 goto free_sess; 7242 } 7243 7244 if (user) { 7245 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7246 } else { 7247 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7248 7249 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7250 fnode_sess->is_boot_target = 1; 7251 else 7252 fnode_sess->is_boot_target = 0; 7253 } 7254 7255 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7256 fw_ddb_entry); 7257 if (rc) 7258 goto free_sess; 7259 7260 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7261 __func__, fnode_sess->dev.kobj.name); 7262 7263 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7264 __func__, fnode_conn->dev.kobj.name); 7265 7266 return QLA_SUCCESS; 7267 7268 free_sess: 7269 iscsi_destroy_flashnode_sess(fnode_sess); 7270 7271 exit_tgt_create: 7272 return QLA_ERROR; 7273 } 7274 7275 /** 7276 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7277 * @shost: pointer to host 7278 * @buf: type of ddb entry (ipv4/ipv6) 7279 * @len: length of buf 7280 * 7281 * This creates new ddb entry in the flash by finding first free index and 7282 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7283 **/ 7284 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7285 int len) 7286 { 7287 struct scsi_qla_host *ha = to_qla_host(shost); 7288 struct dev_db_entry *fw_ddb_entry = NULL; 7289 dma_addr_t fw_ddb_entry_dma; 7290 struct device *dev; 7291 uint16_t idx = 0; 7292 uint16_t max_ddbs = 0; 7293 uint32_t options = 0; 7294 uint32_t rval = QLA_ERROR; 7295 7296 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7297 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7298 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7299 __func__)); 7300 goto exit_ddb_add; 7301 } 7302 7303 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7304 MAX_DEV_DB_ENTRIES; 7305 7306 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7307 &fw_ddb_entry_dma, GFP_KERNEL); 7308 if (!fw_ddb_entry) { 7309 DEBUG2(ql4_printk(KERN_ERR, ha, 7310 "%s: Unable to allocate dma buffer\n", 7311 __func__)); 7312 goto exit_ddb_add; 7313 } 7314 7315 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7316 qla4xxx_sysfs_ddb_is_non_persistent); 7317 if (dev) { 7318 ql4_printk(KERN_ERR, ha, 7319 "%s: A non-persistent entry %s found\n", 7320 __func__, dev->kobj.name); 7321 put_device(dev); 7322 goto exit_ddb_add; 7323 } 7324 7325 /* Index 0 and 1 are reserved for boot target entries */ 7326 for (idx = 2; idx < max_ddbs; idx++) { 7327 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7328 fw_ddb_entry_dma, idx)) 7329 break; 7330 } 7331 7332 if (idx == max_ddbs) 7333 goto exit_ddb_add; 7334 7335 if (!strncasecmp("ipv6", buf, 4)) 7336 options |= IPV6_DEFAULT_DDB_ENTRY; 7337 7338 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7339 if (rval == QLA_ERROR) 7340 goto exit_ddb_add; 7341 7342 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7343 7344 exit_ddb_add: 7345 if (fw_ddb_entry) 7346 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7347 fw_ddb_entry, fw_ddb_entry_dma); 7348 if (rval == QLA_SUCCESS) 7349 return idx; 7350 else 7351 return -EIO; 7352 } 7353 7354 /** 7355 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7356 * @fnode_sess: pointer to session attrs of flash ddb entry 7357 * @fnode_conn: pointer to connection attrs of flash ddb entry 7358 * 7359 * This writes the contents of target ddb buffer to Flash with a valid cookie 7360 * value in order to make the ddb entry persistent. 7361 **/ 7362 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7363 struct iscsi_bus_flash_conn *fnode_conn) 7364 { 7365 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7366 struct scsi_qla_host *ha = to_qla_host(shost); 7367 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7368 struct dev_db_entry *fw_ddb_entry = NULL; 7369 dma_addr_t fw_ddb_entry_dma; 7370 uint32_t options = 0; 7371 int rval = 0; 7372 7373 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7374 &fw_ddb_entry_dma, GFP_KERNEL); 7375 if (!fw_ddb_entry) { 7376 DEBUG2(ql4_printk(KERN_ERR, ha, 7377 "%s: Unable to allocate dma buffer\n", 7378 __func__)); 7379 rval = -ENOMEM; 7380 goto exit_ddb_apply; 7381 } 7382 7383 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7384 options |= IPV6_DEFAULT_DDB_ENTRY; 7385 7386 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7387 if (rval == QLA_ERROR) 7388 goto exit_ddb_apply; 7389 7390 dev_db_start_offset += (fnode_sess->target_id * 7391 sizeof(*fw_ddb_entry)); 7392 7393 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7394 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7395 7396 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7397 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7398 7399 if (rval == QLA_SUCCESS) { 7400 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7401 ql4_printk(KERN_INFO, ha, 7402 "%s: flash node %u of host %lu written to flash\n", 7403 __func__, fnode_sess->target_id, ha->host_no); 7404 } else { 7405 rval = -EIO; 7406 ql4_printk(KERN_ERR, ha, 7407 "%s: Error while writing flash node %u of host %lu to flash\n", 7408 __func__, fnode_sess->target_id, ha->host_no); 7409 } 7410 7411 exit_ddb_apply: 7412 if (fw_ddb_entry) 7413 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7414 fw_ddb_entry, fw_ddb_entry_dma); 7415 return rval; 7416 } 7417 7418 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7419 struct dev_db_entry *fw_ddb_entry, 7420 uint16_t idx) 7421 { 7422 struct dev_db_entry *ddb_entry = NULL; 7423 dma_addr_t ddb_entry_dma; 7424 unsigned long wtime; 7425 uint32_t mbx_sts = 0; 7426 uint32_t state = 0, conn_err = 0; 7427 uint16_t tmo = 0; 7428 int ret = 0; 7429 7430 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7431 &ddb_entry_dma, GFP_KERNEL); 7432 if (!ddb_entry) { 7433 DEBUG2(ql4_printk(KERN_ERR, ha, 7434 "%s: Unable to allocate dma buffer\n", 7435 __func__)); 7436 return QLA_ERROR; 7437 } 7438 7439 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7440 7441 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7442 if (ret != QLA_SUCCESS) { 7443 DEBUG2(ql4_printk(KERN_ERR, ha, 7444 "%s: Unable to set ddb entry for index %d\n", 7445 __func__, idx)); 7446 goto exit_ddb_conn_open; 7447 } 7448 7449 qla4xxx_conn_open(ha, idx); 7450 7451 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7452 tmo = ((ha->def_timeout > LOGIN_TOV) && 7453 (ha->def_timeout < LOGIN_TOV * 10) ? 7454 ha->def_timeout : LOGIN_TOV); 7455 7456 DEBUG2(ql4_printk(KERN_INFO, ha, 7457 "Default time to wait for login to ddb %d\n", tmo)); 7458 7459 wtime = jiffies + (HZ * tmo); 7460 do { 7461 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7462 NULL, &state, &conn_err, NULL, 7463 NULL); 7464 if (ret == QLA_ERROR) 7465 continue; 7466 7467 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7468 state == DDB_DS_SESSION_FAILED) 7469 break; 7470 7471 schedule_timeout_uninterruptible(HZ / 10); 7472 } while (time_after(wtime, jiffies)); 7473 7474 exit_ddb_conn_open: 7475 if (ddb_entry) 7476 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7477 ddb_entry, ddb_entry_dma); 7478 return ret; 7479 } 7480 7481 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7482 struct dev_db_entry *fw_ddb_entry, 7483 uint16_t target_id) 7484 { 7485 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7486 struct list_head list_nt; 7487 uint16_t ddb_index; 7488 int ret = 0; 7489 7490 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7491 ql4_printk(KERN_WARNING, ha, 7492 "%s: A discovery already in progress!\n", __func__); 7493 return QLA_ERROR; 7494 } 7495 7496 INIT_LIST_HEAD(&list_nt); 7497 7498 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7499 7500 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7501 if (ret == QLA_ERROR) 7502 goto exit_login_st_clr_bit; 7503 7504 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7505 if (ret == QLA_ERROR) 7506 goto exit_login_st; 7507 7508 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7509 7510 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7511 list_del_init(&ddb_idx->list); 7512 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7513 vfree(ddb_idx); 7514 } 7515 7516 exit_login_st: 7517 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7518 ql4_printk(KERN_ERR, ha, 7519 "Unable to clear DDB index = 0x%x\n", ddb_index); 7520 } 7521 7522 clear_bit(ddb_index, ha->ddb_idx_map); 7523 7524 exit_login_st_clr_bit: 7525 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7526 return ret; 7527 } 7528 7529 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7530 struct dev_db_entry *fw_ddb_entry, 7531 uint16_t idx) 7532 { 7533 int ret = QLA_ERROR; 7534 7535 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7536 if (ret != QLA_SUCCESS) 7537 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7538 idx); 7539 else 7540 ret = -EPERM; 7541 7542 return ret; 7543 } 7544 7545 /** 7546 * qla4xxx_sysfs_ddb_login - Login to the specified target 7547 * @fnode_sess: pointer to session attrs of flash ddb entry 7548 * @fnode_conn: pointer to connection attrs of flash ddb entry 7549 * 7550 * This logs in to the specified target 7551 **/ 7552 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7553 struct iscsi_bus_flash_conn *fnode_conn) 7554 { 7555 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7556 struct scsi_qla_host *ha = to_qla_host(shost); 7557 struct dev_db_entry *fw_ddb_entry = NULL; 7558 dma_addr_t fw_ddb_entry_dma; 7559 uint32_t options = 0; 7560 int ret = 0; 7561 7562 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7563 ql4_printk(KERN_ERR, ha, 7564 "%s: Target info is not persistent\n", __func__); 7565 ret = -EIO; 7566 goto exit_ddb_login; 7567 } 7568 7569 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7570 &fw_ddb_entry_dma, GFP_KERNEL); 7571 if (!fw_ddb_entry) { 7572 DEBUG2(ql4_printk(KERN_ERR, ha, 7573 "%s: Unable to allocate dma buffer\n", 7574 __func__)); 7575 ret = -ENOMEM; 7576 goto exit_ddb_login; 7577 } 7578 7579 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7580 options |= IPV6_DEFAULT_DDB_ENTRY; 7581 7582 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7583 if (ret == QLA_ERROR) 7584 goto exit_ddb_login; 7585 7586 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7587 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7588 7589 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7590 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7591 fnode_sess->target_id); 7592 else 7593 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7594 fnode_sess->target_id); 7595 7596 if (ret > 0) 7597 ret = -EIO; 7598 7599 exit_ddb_login: 7600 if (fw_ddb_entry) 7601 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7602 fw_ddb_entry, fw_ddb_entry_dma); 7603 return ret; 7604 } 7605 7606 /** 7607 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7608 * @cls_sess: pointer to session to be logged out 7609 * 7610 * This performs session log out from the specified target 7611 **/ 7612 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7613 { 7614 struct iscsi_session *sess; 7615 struct ddb_entry *ddb_entry = NULL; 7616 struct scsi_qla_host *ha; 7617 struct dev_db_entry *fw_ddb_entry = NULL; 7618 dma_addr_t fw_ddb_entry_dma; 7619 unsigned long flags; 7620 unsigned long wtime; 7621 uint32_t ddb_state; 7622 int options; 7623 int ret = 0; 7624 7625 sess = cls_sess->dd_data; 7626 ddb_entry = sess->dd_data; 7627 ha = ddb_entry->ha; 7628 7629 if (ddb_entry->ddb_type != FLASH_DDB) { 7630 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7631 __func__); 7632 ret = -ENXIO; 7633 goto exit_ddb_logout; 7634 } 7635 7636 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7637 ql4_printk(KERN_ERR, ha, 7638 "%s: Logout from boot target entry is not permitted.\n", 7639 __func__); 7640 ret = -EPERM; 7641 goto exit_ddb_logout; 7642 } 7643 7644 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7645 &fw_ddb_entry_dma, GFP_KERNEL); 7646 if (!fw_ddb_entry) { 7647 ql4_printk(KERN_ERR, ha, 7648 "%s: Unable to allocate dma buffer\n", __func__); 7649 ret = -ENOMEM; 7650 goto exit_ddb_logout; 7651 } 7652 7653 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7654 goto ddb_logout_init; 7655 7656 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7657 fw_ddb_entry, fw_ddb_entry_dma, 7658 NULL, NULL, &ddb_state, NULL, 7659 NULL, NULL); 7660 if (ret == QLA_ERROR) 7661 goto ddb_logout_init; 7662 7663 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7664 goto ddb_logout_init; 7665 7666 /* wait until next relogin is triggered using DF_RELOGIN and 7667 * clear DF_RELOGIN to avoid invocation of further relogin 7668 */ 7669 wtime = jiffies + (HZ * RELOGIN_TOV); 7670 do { 7671 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7672 goto ddb_logout_init; 7673 7674 schedule_timeout_uninterruptible(HZ); 7675 } while ((time_after(wtime, jiffies))); 7676 7677 ddb_logout_init: 7678 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7679 atomic_set(&ddb_entry->relogin_timer, 0); 7680 7681 options = LOGOUT_OPTION_CLOSE_SESSION; 7682 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7683 7684 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7685 wtime = jiffies + (HZ * LOGOUT_TOV); 7686 do { 7687 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7688 fw_ddb_entry, fw_ddb_entry_dma, 7689 NULL, NULL, &ddb_state, NULL, 7690 NULL, NULL); 7691 if (ret == QLA_ERROR) 7692 goto ddb_logout_clr_sess; 7693 7694 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7695 (ddb_state == DDB_DS_SESSION_FAILED)) 7696 goto ddb_logout_clr_sess; 7697 7698 schedule_timeout_uninterruptible(HZ); 7699 } while ((time_after(wtime, jiffies))); 7700 7701 ddb_logout_clr_sess: 7702 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7703 /* 7704 * we have decremented the reference count of the driver 7705 * when we setup the session to have the driver unload 7706 * to be seamless without actually destroying the 7707 * session 7708 **/ 7709 try_module_get(qla4xxx_iscsi_transport.owner); 7710 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7711 7712 spin_lock_irqsave(&ha->hardware_lock, flags); 7713 qla4xxx_free_ddb(ha, ddb_entry); 7714 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7715 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7716 7717 iscsi_session_teardown(ddb_entry->sess); 7718 7719 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7720 ret = QLA_SUCCESS; 7721 7722 exit_ddb_logout: 7723 if (fw_ddb_entry) 7724 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7725 fw_ddb_entry, fw_ddb_entry_dma); 7726 return ret; 7727 } 7728 7729 /** 7730 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7731 * @fnode_sess: pointer to session attrs of flash ddb entry 7732 * @fnode_conn: pointer to connection attrs of flash ddb entry 7733 * 7734 * This performs log out from the specified target 7735 **/ 7736 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7737 struct iscsi_bus_flash_conn *fnode_conn) 7738 { 7739 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7740 struct scsi_qla_host *ha = to_qla_host(shost); 7741 struct ql4_tuple_ddb *flash_tddb = NULL; 7742 struct ql4_tuple_ddb *tmp_tddb = NULL; 7743 struct dev_db_entry *fw_ddb_entry = NULL; 7744 struct ddb_entry *ddb_entry = NULL; 7745 dma_addr_t fw_ddb_dma; 7746 uint32_t next_idx = 0; 7747 uint32_t state = 0, conn_err = 0; 7748 uint16_t conn_id = 0; 7749 int idx, index; 7750 int status, ret = 0; 7751 7752 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7753 &fw_ddb_dma); 7754 if (fw_ddb_entry == NULL) { 7755 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7756 ret = -ENOMEM; 7757 goto exit_ddb_logout; 7758 } 7759 7760 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7761 if (!flash_tddb) { 7762 ql4_printk(KERN_WARNING, ha, 7763 "%s:Memory Allocation failed.\n", __func__); 7764 ret = -ENOMEM; 7765 goto exit_ddb_logout; 7766 } 7767 7768 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7769 if (!tmp_tddb) { 7770 ql4_printk(KERN_WARNING, ha, 7771 "%s:Memory Allocation failed.\n", __func__); 7772 ret = -ENOMEM; 7773 goto exit_ddb_logout; 7774 } 7775 7776 if (!fnode_sess->targetname) { 7777 ql4_printk(KERN_ERR, ha, 7778 "%s:Cannot logout from SendTarget entry\n", 7779 __func__); 7780 ret = -EPERM; 7781 goto exit_ddb_logout; 7782 } 7783 7784 if (fnode_sess->is_boot_target) { 7785 ql4_printk(KERN_ERR, ha, 7786 "%s: Logout from boot target entry is not permitted.\n", 7787 __func__); 7788 ret = -EPERM; 7789 goto exit_ddb_logout; 7790 } 7791 7792 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7793 ISCSI_NAME_SIZE); 7794 7795 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7796 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7797 else 7798 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7799 7800 flash_tddb->tpgt = fnode_sess->tpgt; 7801 flash_tddb->port = fnode_conn->port; 7802 7803 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7804 7805 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7806 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7807 if (ddb_entry == NULL) 7808 continue; 7809 7810 if (ddb_entry->ddb_type != FLASH_DDB) 7811 continue; 7812 7813 index = ddb_entry->sess->target_id; 7814 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7815 fw_ddb_dma, NULL, &next_idx, 7816 &state, &conn_err, NULL, 7817 &conn_id); 7818 if (status == QLA_ERROR) { 7819 ret = -ENOMEM; 7820 break; 7821 } 7822 7823 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7824 7825 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7826 true); 7827 if (status == QLA_SUCCESS) { 7828 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7829 break; 7830 } 7831 } 7832 7833 if (idx == MAX_DDB_ENTRIES) 7834 ret = -ESRCH; 7835 7836 exit_ddb_logout: 7837 if (flash_tddb) 7838 vfree(flash_tddb); 7839 if (tmp_tddb) 7840 vfree(tmp_tddb); 7841 if (fw_ddb_entry) 7842 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7843 7844 return ret; 7845 } 7846 7847 static int 7848 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7849 int param, char *buf) 7850 { 7851 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7852 struct scsi_qla_host *ha = to_qla_host(shost); 7853 struct iscsi_bus_flash_conn *fnode_conn; 7854 struct ql4_chap_table chap_tbl; 7855 struct device *dev; 7856 int parent_type; 7857 int rc = 0; 7858 7859 dev = iscsi_find_flashnode_conn(fnode_sess); 7860 if (!dev) 7861 return -EIO; 7862 7863 fnode_conn = iscsi_dev_to_flash_conn(dev); 7864 7865 switch (param) { 7866 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7867 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7868 break; 7869 case ISCSI_FLASHNODE_PORTAL_TYPE: 7870 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7871 break; 7872 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7873 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7874 break; 7875 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7876 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7877 break; 7878 case ISCSI_FLASHNODE_ENTRY_EN: 7879 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7880 break; 7881 case ISCSI_FLASHNODE_HDR_DGST_EN: 7882 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7883 break; 7884 case ISCSI_FLASHNODE_DATA_DGST_EN: 7885 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7886 break; 7887 case ISCSI_FLASHNODE_IMM_DATA_EN: 7888 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7889 break; 7890 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7891 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7892 break; 7893 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7894 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7895 break; 7896 case ISCSI_FLASHNODE_PDU_INORDER: 7897 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7898 break; 7899 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7900 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7901 break; 7902 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7903 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7904 break; 7905 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7906 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7907 break; 7908 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7909 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7910 break; 7911 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7912 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7913 break; 7914 case ISCSI_FLASHNODE_ERL: 7915 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7916 break; 7917 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7918 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7919 break; 7920 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7921 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7922 break; 7923 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7924 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7925 break; 7926 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7927 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7928 break; 7929 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7930 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7931 break; 7932 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7933 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7934 break; 7935 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7936 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7937 break; 7938 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7939 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7940 break; 7941 case ISCSI_FLASHNODE_FIRST_BURST: 7942 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7943 break; 7944 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7945 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7946 break; 7947 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7948 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7949 break; 7950 case ISCSI_FLASHNODE_MAX_R2T: 7951 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7952 break; 7953 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7954 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7955 break; 7956 case ISCSI_FLASHNODE_ISID: 7957 rc = sprintf(buf, "%pm\n", fnode_sess->isid); 7958 break; 7959 case ISCSI_FLASHNODE_TSID: 7960 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7961 break; 7962 case ISCSI_FLASHNODE_PORT: 7963 rc = sprintf(buf, "%d\n", fnode_conn->port); 7964 break; 7965 case ISCSI_FLASHNODE_MAX_BURST: 7966 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7967 break; 7968 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7969 rc = sprintf(buf, "%u\n", 7970 fnode_sess->default_taskmgmt_timeout); 7971 break; 7972 case ISCSI_FLASHNODE_IPADDR: 7973 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7974 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7975 else 7976 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7977 break; 7978 case ISCSI_FLASHNODE_ALIAS: 7979 if (fnode_sess->targetalias) 7980 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7981 else 7982 rc = sprintf(buf, "\n"); 7983 break; 7984 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7985 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7986 rc = sprintf(buf, "%pI6\n", 7987 fnode_conn->redirect_ipaddr); 7988 else 7989 rc = sprintf(buf, "%pI4\n", 7990 fnode_conn->redirect_ipaddr); 7991 break; 7992 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7993 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7994 break; 7995 case ISCSI_FLASHNODE_LOCAL_PORT: 7996 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 7997 break; 7998 case ISCSI_FLASHNODE_IPV4_TOS: 7999 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 8000 break; 8001 case ISCSI_FLASHNODE_IPV6_TC: 8002 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 8003 rc = sprintf(buf, "%u\n", 8004 fnode_conn->ipv6_traffic_class); 8005 else 8006 rc = sprintf(buf, "\n"); 8007 break; 8008 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8009 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 8010 break; 8011 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8012 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 8013 rc = sprintf(buf, "%pI6\n", 8014 fnode_conn->link_local_ipv6_addr); 8015 else 8016 rc = sprintf(buf, "\n"); 8017 break; 8018 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8019 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 8020 break; 8021 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 8022 if (fnode_sess->discovery_parent_type == DDB_ISNS) 8023 parent_type = ISCSI_DISC_PARENT_ISNS; 8024 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 8025 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8026 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 8027 parent_type = ISCSI_DISC_PARENT_SENDTGT; 8028 else 8029 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8030 8031 rc = sprintf(buf, "%s\n", 8032 iscsi_get_discovery_parent_name(parent_type)); 8033 break; 8034 case ISCSI_FLASHNODE_NAME: 8035 if (fnode_sess->targetname) 8036 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 8037 else 8038 rc = sprintf(buf, "\n"); 8039 break; 8040 case ISCSI_FLASHNODE_TPGT: 8041 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 8042 break; 8043 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8044 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 8045 break; 8046 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8047 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 8048 break; 8049 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8050 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8051 break; 8052 case ISCSI_FLASHNODE_USERNAME: 8053 if (fnode_sess->chap_auth_en) { 8054 qla4xxx_get_uni_chap_at_index(ha, 8055 chap_tbl.name, 8056 chap_tbl.secret, 8057 fnode_sess->chap_out_idx); 8058 rc = sprintf(buf, "%s\n", chap_tbl.name); 8059 } else { 8060 rc = sprintf(buf, "\n"); 8061 } 8062 break; 8063 case ISCSI_FLASHNODE_PASSWORD: 8064 if (fnode_sess->chap_auth_en) { 8065 qla4xxx_get_uni_chap_at_index(ha, 8066 chap_tbl.name, 8067 chap_tbl.secret, 8068 fnode_sess->chap_out_idx); 8069 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8070 } else { 8071 rc = sprintf(buf, "\n"); 8072 } 8073 break; 8074 case ISCSI_FLASHNODE_STATSN: 8075 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8076 break; 8077 case ISCSI_FLASHNODE_EXP_STATSN: 8078 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8079 break; 8080 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8081 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8082 break; 8083 default: 8084 rc = -ENOSYS; 8085 break; 8086 } 8087 8088 put_device(dev); 8089 return rc; 8090 } 8091 8092 /** 8093 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8094 * @fnode_sess: pointer to session attrs of flash ddb entry 8095 * @fnode_conn: pointer to connection attrs of flash ddb entry 8096 * @data: Parameters and their values to update 8097 * @len: len of data 8098 * 8099 * This sets the parameter of flash ddb entry and writes them to flash 8100 **/ 8101 static int 8102 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8103 struct iscsi_bus_flash_conn *fnode_conn, 8104 void *data, int len) 8105 { 8106 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8107 struct scsi_qla_host *ha = to_qla_host(shost); 8108 struct iscsi_flashnode_param_info *fnode_param; 8109 struct ql4_chap_table chap_tbl; 8110 struct nlattr *attr; 8111 uint16_t chap_out_idx = INVALID_ENTRY; 8112 int rc = QLA_ERROR; 8113 uint32_t rem = len; 8114 8115 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8116 nla_for_each_attr(attr, data, len, rem) { 8117 fnode_param = nla_data(attr); 8118 8119 switch (fnode_param->param) { 8120 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8121 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8122 break; 8123 case ISCSI_FLASHNODE_PORTAL_TYPE: 8124 memcpy(fnode_sess->portal_type, fnode_param->value, 8125 strlen(fnode_sess->portal_type)); 8126 break; 8127 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8128 fnode_sess->auto_snd_tgt_disable = 8129 fnode_param->value[0]; 8130 break; 8131 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8132 fnode_sess->discovery_sess = fnode_param->value[0]; 8133 break; 8134 case ISCSI_FLASHNODE_ENTRY_EN: 8135 fnode_sess->entry_state = fnode_param->value[0]; 8136 break; 8137 case ISCSI_FLASHNODE_HDR_DGST_EN: 8138 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8139 break; 8140 case ISCSI_FLASHNODE_DATA_DGST_EN: 8141 fnode_conn->datadgst_en = fnode_param->value[0]; 8142 break; 8143 case ISCSI_FLASHNODE_IMM_DATA_EN: 8144 fnode_sess->imm_data_en = fnode_param->value[0]; 8145 break; 8146 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8147 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8148 break; 8149 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8150 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8151 break; 8152 case ISCSI_FLASHNODE_PDU_INORDER: 8153 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8154 break; 8155 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8156 fnode_sess->chap_auth_en = fnode_param->value[0]; 8157 /* Invalidate chap index if chap auth is disabled */ 8158 if (!fnode_sess->chap_auth_en) 8159 fnode_sess->chap_out_idx = INVALID_ENTRY; 8160 8161 break; 8162 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8163 fnode_conn->snack_req_en = fnode_param->value[0]; 8164 break; 8165 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8166 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8167 break; 8168 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8169 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8170 break; 8171 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8172 fnode_sess->discovery_auth_optional = 8173 fnode_param->value[0]; 8174 break; 8175 case ISCSI_FLASHNODE_ERL: 8176 fnode_sess->erl = fnode_param->value[0]; 8177 break; 8178 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8179 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8180 break; 8181 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8182 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8183 break; 8184 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8185 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8186 break; 8187 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8188 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8189 break; 8190 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8191 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8192 break; 8193 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8194 fnode_conn->fragment_disable = fnode_param->value[0]; 8195 break; 8196 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8197 fnode_conn->max_recv_dlength = 8198 *(unsigned *)fnode_param->value; 8199 break; 8200 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8201 fnode_conn->max_xmit_dlength = 8202 *(unsigned *)fnode_param->value; 8203 break; 8204 case ISCSI_FLASHNODE_FIRST_BURST: 8205 fnode_sess->first_burst = 8206 *(unsigned *)fnode_param->value; 8207 break; 8208 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8209 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8210 break; 8211 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8212 fnode_sess->time2retain = 8213 *(uint16_t *)fnode_param->value; 8214 break; 8215 case ISCSI_FLASHNODE_MAX_R2T: 8216 fnode_sess->max_r2t = 8217 *(uint16_t *)fnode_param->value; 8218 break; 8219 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8220 fnode_conn->keepalive_timeout = 8221 *(uint16_t *)fnode_param->value; 8222 break; 8223 case ISCSI_FLASHNODE_ISID: 8224 memcpy(fnode_sess->isid, fnode_param->value, 8225 sizeof(fnode_sess->isid)); 8226 break; 8227 case ISCSI_FLASHNODE_TSID: 8228 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8229 break; 8230 case ISCSI_FLASHNODE_PORT: 8231 fnode_conn->port = *(uint16_t *)fnode_param->value; 8232 break; 8233 case ISCSI_FLASHNODE_MAX_BURST: 8234 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8235 break; 8236 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8237 fnode_sess->default_taskmgmt_timeout = 8238 *(uint16_t *)fnode_param->value; 8239 break; 8240 case ISCSI_FLASHNODE_IPADDR: 8241 memcpy(fnode_conn->ipaddress, fnode_param->value, 8242 IPv6_ADDR_LEN); 8243 break; 8244 case ISCSI_FLASHNODE_ALIAS: 8245 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8246 (char *)fnode_param->value); 8247 break; 8248 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8249 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8250 IPv6_ADDR_LEN); 8251 break; 8252 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8253 fnode_conn->max_segment_size = 8254 *(unsigned *)fnode_param->value; 8255 break; 8256 case ISCSI_FLASHNODE_LOCAL_PORT: 8257 fnode_conn->local_port = 8258 *(uint16_t *)fnode_param->value; 8259 break; 8260 case ISCSI_FLASHNODE_IPV4_TOS: 8261 fnode_conn->ipv4_tos = fnode_param->value[0]; 8262 break; 8263 case ISCSI_FLASHNODE_IPV6_TC: 8264 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8265 break; 8266 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8267 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8268 break; 8269 case ISCSI_FLASHNODE_NAME: 8270 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8271 (char *)fnode_param->value); 8272 break; 8273 case ISCSI_FLASHNODE_TPGT: 8274 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8275 break; 8276 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8277 memcpy(fnode_conn->link_local_ipv6_addr, 8278 fnode_param->value, IPv6_ADDR_LEN); 8279 break; 8280 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8281 fnode_sess->discovery_parent_idx = 8282 *(uint16_t *)fnode_param->value; 8283 break; 8284 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8285 fnode_conn->tcp_xmit_wsf = 8286 *(uint8_t *)fnode_param->value; 8287 break; 8288 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8289 fnode_conn->tcp_recv_wsf = 8290 *(uint8_t *)fnode_param->value; 8291 break; 8292 case ISCSI_FLASHNODE_STATSN: 8293 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8294 break; 8295 case ISCSI_FLASHNODE_EXP_STATSN: 8296 fnode_conn->exp_statsn = 8297 *(uint32_t *)fnode_param->value; 8298 break; 8299 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8300 chap_out_idx = *(uint16_t *)fnode_param->value; 8301 if (!qla4xxx_get_uni_chap_at_index(ha, 8302 chap_tbl.name, 8303 chap_tbl.secret, 8304 chap_out_idx)) { 8305 fnode_sess->chap_out_idx = chap_out_idx; 8306 /* Enable chap auth if chap index is valid */ 8307 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8308 } 8309 break; 8310 default: 8311 ql4_printk(KERN_ERR, ha, 8312 "%s: No such sysfs attribute\n", __func__); 8313 rc = -ENOSYS; 8314 goto exit_set_param; 8315 } 8316 } 8317 8318 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8319 8320 exit_set_param: 8321 return rc; 8322 } 8323 8324 /** 8325 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8326 * @fnode_sess: pointer to session attrs of flash ddb entry 8327 * 8328 * This invalidates the flash ddb entry at the given index 8329 **/ 8330 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8331 { 8332 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8333 struct scsi_qla_host *ha = to_qla_host(shost); 8334 uint32_t dev_db_start_offset; 8335 uint32_t dev_db_end_offset; 8336 struct dev_db_entry *fw_ddb_entry = NULL; 8337 dma_addr_t fw_ddb_entry_dma; 8338 uint16_t *ddb_cookie = NULL; 8339 size_t ddb_size = 0; 8340 void *pddb = NULL; 8341 int target_id; 8342 int rc = 0; 8343 8344 if (fnode_sess->is_boot_target) { 8345 rc = -EPERM; 8346 DEBUG2(ql4_printk(KERN_ERR, ha, 8347 "%s: Deletion of boot target entry is not permitted.\n", 8348 __func__)); 8349 goto exit_ddb_del; 8350 } 8351 8352 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8353 goto sysfs_ddb_del; 8354 8355 if (is_qla40XX(ha)) { 8356 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8357 dev_db_end_offset = FLASH_OFFSET_DB_END; 8358 dev_db_start_offset += (fnode_sess->target_id * 8359 sizeof(*fw_ddb_entry)); 8360 ddb_size = sizeof(*fw_ddb_entry); 8361 } else { 8362 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8363 (ha->hw.flt_region_ddb << 2); 8364 /* flt_ddb_size is DDB table size for both ports 8365 * so divide it by 2 to calculate the offset for second port 8366 */ 8367 if (ha->port_num == 1) 8368 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8369 8370 dev_db_end_offset = dev_db_start_offset + 8371 (ha->hw.flt_ddb_size / 2); 8372 8373 dev_db_start_offset += (fnode_sess->target_id * 8374 sizeof(*fw_ddb_entry)); 8375 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8376 8377 ddb_size = sizeof(*ddb_cookie); 8378 } 8379 8380 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8381 __func__, dev_db_start_offset, dev_db_end_offset)); 8382 8383 if (dev_db_start_offset > dev_db_end_offset) { 8384 rc = -EIO; 8385 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8386 __func__, fnode_sess->target_id)); 8387 goto exit_ddb_del; 8388 } 8389 8390 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8391 &fw_ddb_entry_dma, GFP_KERNEL); 8392 if (!pddb) { 8393 rc = -ENOMEM; 8394 DEBUG2(ql4_printk(KERN_ERR, ha, 8395 "%s: Unable to allocate dma buffer\n", 8396 __func__)); 8397 goto exit_ddb_del; 8398 } 8399 8400 if (is_qla40XX(ha)) { 8401 fw_ddb_entry = pddb; 8402 memset(fw_ddb_entry, 0, ddb_size); 8403 ddb_cookie = &fw_ddb_entry->cookie; 8404 } else { 8405 ddb_cookie = pddb; 8406 } 8407 8408 /* invalidate the cookie */ 8409 *ddb_cookie = 0xFFEE; 8410 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8411 ddb_size, FLASH_OPT_RMW_COMMIT); 8412 8413 sysfs_ddb_del: 8414 target_id = fnode_sess->target_id; 8415 iscsi_destroy_flashnode_sess(fnode_sess); 8416 ql4_printk(KERN_INFO, ha, 8417 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8418 __func__, target_id, ha->host_no); 8419 exit_ddb_del: 8420 if (pddb) 8421 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8422 fw_ddb_entry_dma); 8423 return rc; 8424 } 8425 8426 /** 8427 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8428 * @ha: pointer to adapter structure 8429 * 8430 * Export the firmware DDB for all send targets and normal targets to sysfs. 8431 **/ 8432 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8433 { 8434 struct dev_db_entry *fw_ddb_entry = NULL; 8435 dma_addr_t fw_ddb_entry_dma; 8436 uint16_t max_ddbs; 8437 uint16_t idx = 0; 8438 int ret = QLA_SUCCESS; 8439 8440 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8441 sizeof(*fw_ddb_entry), 8442 &fw_ddb_entry_dma, GFP_KERNEL); 8443 if (!fw_ddb_entry) { 8444 DEBUG2(ql4_printk(KERN_ERR, ha, 8445 "%s: Unable to allocate dma buffer\n", 8446 __func__)); 8447 return -ENOMEM; 8448 } 8449 8450 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8451 MAX_DEV_DB_ENTRIES; 8452 8453 for (idx = 0; idx < max_ddbs; idx++) { 8454 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8455 idx)) 8456 continue; 8457 8458 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8459 if (ret) { 8460 ret = -EIO; 8461 break; 8462 } 8463 } 8464 8465 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8466 fw_ddb_entry_dma); 8467 8468 return ret; 8469 } 8470 8471 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8472 { 8473 iscsi_destroy_all_flashnode(ha->host); 8474 } 8475 8476 /** 8477 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8478 * @ha: pointer to adapter structure 8479 * @is_reset: Is this init path or reset path 8480 * 8481 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8482 * using connection open, then create the list of normal targets (nt) 8483 * from firmware DDBs. Based on the list of nt setup session and connection 8484 * objects. 8485 **/ 8486 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8487 { 8488 uint16_t tmo = 0; 8489 struct list_head list_st, list_nt; 8490 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8491 unsigned long wtime; 8492 8493 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8494 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8495 ha->is_reset = is_reset; 8496 return; 8497 } 8498 8499 INIT_LIST_HEAD(&list_st); 8500 INIT_LIST_HEAD(&list_nt); 8501 8502 qla4xxx_build_st_list(ha, &list_st); 8503 8504 /* Before issuing conn open mbox, ensure all IPs states are configured 8505 * Note, conn open fails if IPs are not configured 8506 */ 8507 qla4xxx_wait_for_ip_configuration(ha); 8508 8509 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8510 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8511 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8512 } 8513 8514 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8515 tmo = ((ha->def_timeout > LOGIN_TOV) && 8516 (ha->def_timeout < LOGIN_TOV * 10) ? 8517 ha->def_timeout : LOGIN_TOV); 8518 8519 DEBUG2(ql4_printk(KERN_INFO, ha, 8520 "Default time to wait for build ddb %d\n", tmo)); 8521 8522 wtime = jiffies + (HZ * tmo); 8523 do { 8524 if (list_empty(&list_st)) 8525 break; 8526 8527 qla4xxx_remove_failed_ddb(ha, &list_st); 8528 schedule_timeout_uninterruptible(HZ / 10); 8529 } while (time_after(wtime, jiffies)); 8530 8531 8532 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8533 8534 qla4xxx_free_ddb_list(&list_st); 8535 qla4xxx_free_ddb_list(&list_nt); 8536 8537 qla4xxx_free_ddb_index(ha); 8538 } 8539 8540 /** 8541 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8542 * response. 8543 * @ha: pointer to adapter structure 8544 * 8545 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8546 * set in DDB and we will wait for login response of boot targets during 8547 * probe. 8548 **/ 8549 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8550 { 8551 struct ddb_entry *ddb_entry; 8552 struct dev_db_entry *fw_ddb_entry = NULL; 8553 dma_addr_t fw_ddb_entry_dma; 8554 unsigned long wtime; 8555 uint32_t ddb_state; 8556 int max_ddbs, idx, ret; 8557 8558 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8559 MAX_DEV_DB_ENTRIES; 8560 8561 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8562 &fw_ddb_entry_dma, GFP_KERNEL); 8563 if (!fw_ddb_entry) { 8564 ql4_printk(KERN_ERR, ha, 8565 "%s: Unable to allocate dma buffer\n", __func__); 8566 goto exit_login_resp; 8567 } 8568 8569 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8570 8571 for (idx = 0; idx < max_ddbs; idx++) { 8572 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8573 if (ddb_entry == NULL) 8574 continue; 8575 8576 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8577 DEBUG2(ql4_printk(KERN_INFO, ha, 8578 "%s: DDB index [%d]\n", __func__, 8579 ddb_entry->fw_ddb_index)); 8580 do { 8581 ret = qla4xxx_get_fwddb_entry(ha, 8582 ddb_entry->fw_ddb_index, 8583 fw_ddb_entry, fw_ddb_entry_dma, 8584 NULL, NULL, &ddb_state, NULL, 8585 NULL, NULL); 8586 if (ret == QLA_ERROR) 8587 goto exit_login_resp; 8588 8589 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8590 (ddb_state == DDB_DS_SESSION_FAILED)) 8591 break; 8592 8593 schedule_timeout_uninterruptible(HZ); 8594 8595 } while ((time_after(wtime, jiffies))); 8596 8597 if (!time_after(wtime, jiffies)) { 8598 DEBUG2(ql4_printk(KERN_INFO, ha, 8599 "%s: Login response wait timer expired\n", 8600 __func__)); 8601 goto exit_login_resp; 8602 } 8603 } 8604 } 8605 8606 exit_login_resp: 8607 if (fw_ddb_entry) 8608 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8609 fw_ddb_entry, fw_ddb_entry_dma); 8610 } 8611 8612 /** 8613 * qla4xxx_probe_adapter - callback function to probe HBA 8614 * @pdev: pointer to pci_dev structure 8615 * @ent: pointer to pci_device entry 8616 * 8617 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8618 * It returns zero if successful. It also initializes all data necessary for 8619 * the driver. 8620 **/ 8621 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8622 const struct pci_device_id *ent) 8623 { 8624 int ret = -ENODEV, status; 8625 struct Scsi_Host *host; 8626 struct scsi_qla_host *ha; 8627 uint8_t init_retry_count = 0; 8628 char buf[34]; 8629 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8630 uint32_t dev_state; 8631 8632 if (pci_enable_device(pdev)) 8633 return -1; 8634 8635 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8636 if (host == NULL) { 8637 printk(KERN_WARNING 8638 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8639 goto probe_disable_device; 8640 } 8641 8642 /* Clear our data area */ 8643 ha = to_qla_host(host); 8644 memset(ha, 0, sizeof(*ha)); 8645 8646 /* Save the information from PCI BIOS. */ 8647 ha->pdev = pdev; 8648 ha->host = host; 8649 ha->host_no = host->host_no; 8650 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8651 8652 pci_enable_pcie_error_reporting(pdev); 8653 8654 /* Setup Runtime configurable options */ 8655 if (is_qla8022(ha)) { 8656 ha->isp_ops = &qla4_82xx_isp_ops; 8657 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8658 ha->qdr_sn_window = -1; 8659 ha->ddr_mn_window = -1; 8660 ha->curr_window = 255; 8661 nx_legacy_intr = &legacy_intr[ha->func_num]; 8662 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8663 ha->nx_legacy_intr.tgt_status_reg = 8664 nx_legacy_intr->tgt_status_reg; 8665 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8666 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8667 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8668 ha->isp_ops = &qla4_83xx_isp_ops; 8669 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8670 } else { 8671 ha->isp_ops = &qla4xxx_isp_ops; 8672 } 8673 8674 if (is_qla80XX(ha)) { 8675 rwlock_init(&ha->hw_lock); 8676 ha->pf_bit = ha->func_num << 16; 8677 /* Set EEH reset type to fundamental if required by hba */ 8678 pdev->needs_freset = 1; 8679 } 8680 8681 /* Configure PCI I/O space. */ 8682 ret = ha->isp_ops->iospace_config(ha); 8683 if (ret) 8684 goto probe_failed_ioconfig; 8685 8686 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8687 pdev->device, pdev->irq, ha->reg); 8688 8689 qla4xxx_config_dma_addressing(ha); 8690 8691 /* Initialize lists and spinlocks. */ 8692 INIT_LIST_HEAD(&ha->free_srb_q); 8693 8694 mutex_init(&ha->mbox_sem); 8695 mutex_init(&ha->chap_sem); 8696 init_completion(&ha->mbx_intr_comp); 8697 init_completion(&ha->disable_acb_comp); 8698 init_completion(&ha->idc_comp); 8699 init_completion(&ha->link_up_comp); 8700 8701 spin_lock_init(&ha->hardware_lock); 8702 spin_lock_init(&ha->work_lock); 8703 8704 /* Initialize work list */ 8705 INIT_LIST_HEAD(&ha->work_list); 8706 8707 /* Allocate dma buffers */ 8708 if (qla4xxx_mem_alloc(ha)) { 8709 ql4_printk(KERN_WARNING, ha, 8710 "[ERROR] Failed to allocate memory for adapter\n"); 8711 8712 ret = -ENOMEM; 8713 goto probe_failed; 8714 } 8715 8716 host->cmd_per_lun = 3; 8717 host->max_channel = 0; 8718 host->max_lun = MAX_LUNS - 1; 8719 host->max_id = MAX_TARGETS; 8720 host->max_cmd_len = IOCB_MAX_CDB_LEN; 8721 host->can_queue = MAX_SRBS ; 8722 host->transportt = qla4xxx_scsi_transport; 8723 8724 pci_set_drvdata(pdev, ha); 8725 8726 ret = scsi_add_host(host, &pdev->dev); 8727 if (ret) 8728 goto probe_failed; 8729 8730 if (is_qla80XX(ha)) 8731 qla4_8xxx_get_flash_info(ha); 8732 8733 if (is_qla8032(ha) || is_qla8042(ha)) { 8734 qla4_83xx_read_reset_template(ha); 8735 /* 8736 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8737 * If DONRESET_BIT0 is set, drivers should not set dev_state 8738 * to NEED_RESET. But if NEED_RESET is set, drivers should 8739 * should honor the reset. 8740 */ 8741 if (ql4xdontresethba == 1) 8742 qla4_83xx_set_idc_dontreset(ha); 8743 } 8744 8745 /* 8746 * Initialize the Host adapter request/response queues and 8747 * firmware 8748 * NOTE: interrupts enabled upon successful completion 8749 */ 8750 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8751 8752 /* Dont retry adapter initialization if IRQ allocation failed */ 8753 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8754 goto skip_retry_init; 8755 8756 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8757 init_retry_count++ < MAX_INIT_RETRIES) { 8758 8759 if (is_qla80XX(ha)) { 8760 ha->isp_ops->idc_lock(ha); 8761 dev_state = qla4_8xxx_rd_direct(ha, 8762 QLA8XXX_CRB_DEV_STATE); 8763 ha->isp_ops->idc_unlock(ha); 8764 if (dev_state == QLA8XXX_DEV_FAILED) { 8765 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8766 "initialize adapter. H/W is in failed state\n", 8767 __func__); 8768 break; 8769 } 8770 } 8771 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8772 "(%d)\n", __func__, init_retry_count)); 8773 8774 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8775 continue; 8776 8777 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8778 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8779 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8780 goto skip_retry_init; 8781 } 8782 } 8783 8784 skip_retry_init: 8785 if (!test_bit(AF_ONLINE, &ha->flags)) { 8786 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8787 8788 if ((is_qla8022(ha) && ql4xdontresethba) || 8789 ((is_qla8032(ha) || is_qla8042(ha)) && 8790 qla4_83xx_idc_dontreset(ha))) { 8791 /* Put the device in failed state. */ 8792 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8793 ha->isp_ops->idc_lock(ha); 8794 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8795 QLA8XXX_DEV_FAILED); 8796 ha->isp_ops->idc_unlock(ha); 8797 } 8798 ret = -ENODEV; 8799 goto remove_host; 8800 } 8801 8802 /* Startup the kernel thread for this host adapter. */ 8803 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8804 "qla4xxx_dpc\n", __func__)); 8805 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8806 ha->dpc_thread = create_singlethread_workqueue(buf); 8807 if (!ha->dpc_thread) { 8808 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8809 ret = -ENODEV; 8810 goto remove_host; 8811 } 8812 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8813 8814 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8815 ha->host_no); 8816 if (!ha->task_wq) { 8817 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8818 ret = -ENODEV; 8819 goto remove_host; 8820 } 8821 8822 /* 8823 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8824 * (which is called indirectly by qla4xxx_initialize_adapter), 8825 * so that irqs will be registered after crbinit but before 8826 * mbx_intr_enable. 8827 */ 8828 if (is_qla40XX(ha)) { 8829 ret = qla4xxx_request_irqs(ha); 8830 if (ret) { 8831 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8832 "interrupt %d already in use.\n", pdev->irq); 8833 goto remove_host; 8834 } 8835 } 8836 8837 pci_save_state(ha->pdev); 8838 ha->isp_ops->enable_intrs(ha); 8839 8840 /* Start timer thread. */ 8841 qla4xxx_start_timer(ha, 1); 8842 8843 set_bit(AF_INIT_DONE, &ha->flags); 8844 8845 qla4_8xxx_alloc_sysfs_attr(ha); 8846 8847 printk(KERN_INFO 8848 " QLogic iSCSI HBA Driver version: %s\n" 8849 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8850 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8851 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8852 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8853 8854 /* Set the driver version */ 8855 if (is_qla80XX(ha)) 8856 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8857 8858 if (qla4xxx_setup_boot_info(ha)) 8859 ql4_printk(KERN_ERR, ha, 8860 "%s: No iSCSI boot target configured\n", __func__); 8861 8862 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags); 8863 /* Perform the build ddb list and login to each */ 8864 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8865 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8866 qla4xxx_wait_login_resp_boot_tgt(ha); 8867 8868 qla4xxx_create_chap_list(ha); 8869 8870 qla4xxx_create_ifaces(ha); 8871 return 0; 8872 8873 remove_host: 8874 scsi_remove_host(ha->host); 8875 8876 probe_failed: 8877 qla4xxx_free_adapter(ha); 8878 8879 probe_failed_ioconfig: 8880 pci_disable_pcie_error_reporting(pdev); 8881 scsi_host_put(ha->host); 8882 8883 probe_disable_device: 8884 pci_disable_device(pdev); 8885 8886 return ret; 8887 } 8888 8889 /** 8890 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8891 * @ha: pointer to adapter structure 8892 * 8893 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8894 * so that the other port will not re-initialize while in the process of 8895 * removing the ha due to driver unload or hba hotplug. 8896 **/ 8897 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8898 { 8899 struct scsi_qla_host *other_ha = NULL; 8900 struct pci_dev *other_pdev = NULL; 8901 int fn = ISP4XXX_PCI_FN_2; 8902 8903 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8904 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8905 fn = ISP4XXX_PCI_FN_1; 8906 8907 other_pdev = 8908 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8909 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8910 fn)); 8911 8912 /* Get other_ha if other_pdev is valid and state is enable*/ 8913 if (other_pdev) { 8914 if (atomic_read(&other_pdev->enable_cnt)) { 8915 other_ha = pci_get_drvdata(other_pdev); 8916 if (other_ha) { 8917 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8918 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8919 "Prevent %s reinit\n", __func__, 8920 dev_name(&other_ha->pdev->dev))); 8921 } 8922 } 8923 pci_dev_put(other_pdev); 8924 } 8925 } 8926 8927 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8928 struct ddb_entry *ddb_entry) 8929 { 8930 struct dev_db_entry *fw_ddb_entry = NULL; 8931 dma_addr_t fw_ddb_entry_dma; 8932 unsigned long wtime; 8933 uint32_t ddb_state; 8934 int options; 8935 int status; 8936 8937 options = LOGOUT_OPTION_CLOSE_SESSION; 8938 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8939 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8940 goto clear_ddb; 8941 } 8942 8943 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8944 &fw_ddb_entry_dma, GFP_KERNEL); 8945 if (!fw_ddb_entry) { 8946 ql4_printk(KERN_ERR, ha, 8947 "%s: Unable to allocate dma buffer\n", __func__); 8948 goto clear_ddb; 8949 } 8950 8951 wtime = jiffies + (HZ * LOGOUT_TOV); 8952 do { 8953 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8954 fw_ddb_entry, fw_ddb_entry_dma, 8955 NULL, NULL, &ddb_state, NULL, 8956 NULL, NULL); 8957 if (status == QLA_ERROR) 8958 goto free_ddb; 8959 8960 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8961 (ddb_state == DDB_DS_SESSION_FAILED)) 8962 goto free_ddb; 8963 8964 schedule_timeout_uninterruptible(HZ); 8965 } while ((time_after(wtime, jiffies))); 8966 8967 free_ddb: 8968 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8969 fw_ddb_entry, fw_ddb_entry_dma); 8970 clear_ddb: 8971 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8972 } 8973 8974 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8975 { 8976 struct ddb_entry *ddb_entry; 8977 int idx; 8978 8979 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8980 8981 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8982 if ((ddb_entry != NULL) && 8983 (ddb_entry->ddb_type == FLASH_DDB)) { 8984 8985 qla4xxx_destroy_ddb(ha, ddb_entry); 8986 /* 8987 * we have decremented the reference count of the driver 8988 * when we setup the session to have the driver unload 8989 * to be seamless without actually destroying the 8990 * session 8991 **/ 8992 try_module_get(qla4xxx_iscsi_transport.owner); 8993 iscsi_destroy_endpoint(ddb_entry->conn->ep); 8994 qla4xxx_free_ddb(ha, ddb_entry); 8995 iscsi_session_teardown(ddb_entry->sess); 8996 } 8997 } 8998 } 8999 /** 9000 * qla4xxx_remove_adapter - callback function to remove adapter. 9001 * @pdev: PCI device pointer 9002 **/ 9003 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 9004 { 9005 struct scsi_qla_host *ha; 9006 9007 /* 9008 * If the PCI device is disabled then it means probe_adapter had 9009 * failed and resources already cleaned up on probe_adapter exit. 9010 */ 9011 if (!pci_is_enabled(pdev)) 9012 return; 9013 9014 ha = pci_get_drvdata(pdev); 9015 9016 if (is_qla40XX(ha)) 9017 qla4xxx_prevent_other_port_reinit(ha); 9018 9019 /* destroy iface from sysfs */ 9020 qla4xxx_destroy_ifaces(ha); 9021 9022 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 9023 iscsi_boot_destroy_kset(ha->boot_kset); 9024 9025 qla4xxx_destroy_fw_ddb_session(ha); 9026 qla4_8xxx_free_sysfs_attr(ha); 9027 9028 qla4xxx_sysfs_ddb_remove(ha); 9029 scsi_remove_host(ha->host); 9030 9031 qla4xxx_free_adapter(ha); 9032 9033 scsi_host_put(ha->host); 9034 9035 pci_disable_pcie_error_reporting(pdev); 9036 pci_disable_device(pdev); 9037 } 9038 9039 /** 9040 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9041 * @ha: HA context 9042 */ 9043 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9044 { 9045 /* Update our PCI device dma_mask for full 64 bit mask */ 9046 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) { 9047 dev_dbg(&ha->pdev->dev, 9048 "Failed to set 64 bit PCI consistent mask; " 9049 "using 32 bit.\n"); 9050 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32)); 9051 } 9052 } 9053 9054 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 9055 { 9056 struct iscsi_cls_session *cls_sess; 9057 struct iscsi_session *sess; 9058 struct ddb_entry *ddb; 9059 int queue_depth = QL4_DEF_QDEPTH; 9060 9061 cls_sess = starget_to_session(sdev->sdev_target); 9062 sess = cls_sess->dd_data; 9063 ddb = sess->dd_data; 9064 9065 sdev->hostdata = ddb; 9066 9067 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9068 queue_depth = ql4xmaxqdepth; 9069 9070 scsi_change_queue_depth(sdev, queue_depth); 9071 return 0; 9072 } 9073 9074 /** 9075 * qla4xxx_del_from_active_array - returns an active srb 9076 * @ha: Pointer to host adapter structure. 9077 * @index: index into the active_array 9078 * 9079 * This routine removes and returns the srb at the specified index 9080 **/ 9081 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9082 uint32_t index) 9083 { 9084 struct srb *srb = NULL; 9085 struct scsi_cmnd *cmd = NULL; 9086 9087 cmd = scsi_host_find_tag(ha->host, index); 9088 if (!cmd) 9089 return srb; 9090 9091 srb = (struct srb *)CMD_SP(cmd); 9092 if (!srb) 9093 return srb; 9094 9095 /* update counters */ 9096 if (srb->flags & SRB_DMA_VALID) { 9097 ha->iocb_cnt -= srb->iocb_cnt; 9098 if (srb->cmd) 9099 srb->cmd->host_scribble = 9100 (unsigned char *)(unsigned long) MAX_SRBS; 9101 } 9102 return srb; 9103 } 9104 9105 /** 9106 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9107 * @ha: Pointer to host adapter structure. 9108 * @cmd: Scsi Command to wait on. 9109 * 9110 * This routine waits for the command to be returned by the Firmware 9111 * for some max time. 9112 **/ 9113 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9114 struct scsi_cmnd *cmd) 9115 { 9116 int done = 0; 9117 struct srb *rp; 9118 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9119 int ret = SUCCESS; 9120 9121 /* Dont wait on command if PCI error is being handled 9122 * by PCI AER driver 9123 */ 9124 if (unlikely(pci_channel_offline(ha->pdev)) || 9125 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9126 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9127 ha->host_no, __func__); 9128 return ret; 9129 } 9130 9131 do { 9132 /* Checking to see if its returned to OS */ 9133 rp = (struct srb *) CMD_SP(cmd); 9134 if (rp == NULL) { 9135 done++; 9136 break; 9137 } 9138 9139 msleep(2000); 9140 } while (max_wait_time--); 9141 9142 return done; 9143 } 9144 9145 /** 9146 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9147 * @ha: Pointer to host adapter structure 9148 **/ 9149 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9150 { 9151 unsigned long wait_online; 9152 9153 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9154 while (time_before(jiffies, wait_online)) { 9155 9156 if (adapter_up(ha)) 9157 return QLA_SUCCESS; 9158 9159 msleep(2000); 9160 } 9161 9162 return QLA_ERROR; 9163 } 9164 9165 /** 9166 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9167 * @ha: pointer to HBA 9168 * @stgt: pointer to SCSI target 9169 * @sdev: pointer to SCSI device 9170 * 9171 * This function waits for all outstanding commands to a lun to complete. It 9172 * returns 0 if all pending commands are returned and 1 otherwise. 9173 **/ 9174 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9175 struct scsi_target *stgt, 9176 struct scsi_device *sdev) 9177 { 9178 int cnt; 9179 int status = 0; 9180 struct scsi_cmnd *cmd; 9181 9182 /* 9183 * Waiting for all commands for the designated target or dev 9184 * in the active array 9185 */ 9186 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9187 cmd = scsi_host_find_tag(ha->host, cnt); 9188 if (cmd && stgt == scsi_target(cmd->device) && 9189 (!sdev || sdev == cmd->device)) { 9190 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9191 status++; 9192 break; 9193 } 9194 } 9195 } 9196 return status; 9197 } 9198 9199 /** 9200 * qla4xxx_eh_abort - callback for abort task. 9201 * @cmd: Pointer to Linux's SCSI command structure 9202 * 9203 * This routine is called by the Linux OS to abort the specified 9204 * command. 9205 **/ 9206 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9207 { 9208 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9209 unsigned int id = cmd->device->id; 9210 uint64_t lun = cmd->device->lun; 9211 unsigned long flags; 9212 struct srb *srb = NULL; 9213 int ret = SUCCESS; 9214 int wait = 0; 9215 int rval; 9216 9217 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n", 9218 ha->host_no, id, lun, cmd, cmd->cmnd[0]); 9219 9220 rval = qla4xxx_isp_check_reg(ha); 9221 if (rval != QLA_SUCCESS) { 9222 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9223 return FAILED; 9224 } 9225 9226 spin_lock_irqsave(&ha->hardware_lock, flags); 9227 srb = (struct srb *) CMD_SP(cmd); 9228 if (!srb) { 9229 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9230 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n", 9231 ha->host_no, id, lun); 9232 return SUCCESS; 9233 } 9234 kref_get(&srb->srb_ref); 9235 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9236 9237 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9238 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n", 9239 ha->host_no, id, lun)); 9240 ret = FAILED; 9241 } else { 9242 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n", 9243 ha->host_no, id, lun)); 9244 wait = 1; 9245 } 9246 9247 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9248 9249 /* Wait for command to complete */ 9250 if (wait) { 9251 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9252 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n", 9253 ha->host_no, id, lun)); 9254 ret = FAILED; 9255 } 9256 } 9257 9258 ql4_printk(KERN_INFO, ha, 9259 "scsi%ld:%d:%llu: Abort command - %s\n", 9260 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9261 9262 return ret; 9263 } 9264 9265 /** 9266 * qla4xxx_eh_device_reset - callback for target reset. 9267 * @cmd: Pointer to Linux's SCSI command structure 9268 * 9269 * This routine is called by the Linux OS to reset all luns on the 9270 * specified target. 9271 **/ 9272 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9273 { 9274 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9275 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9276 int ret = FAILED, stat; 9277 int rval; 9278 9279 if (!ddb_entry) 9280 return ret; 9281 9282 ret = iscsi_block_scsi_eh(cmd); 9283 if (ret) 9284 return ret; 9285 ret = FAILED; 9286 9287 ql4_printk(KERN_INFO, ha, 9288 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no, 9289 cmd->device->channel, cmd->device->id, cmd->device->lun); 9290 9291 DEBUG2(printk(KERN_INFO 9292 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9293 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9294 cmd, jiffies, cmd->request->timeout / HZ, 9295 ha->dpc_flags, cmd->result, cmd->allowed)); 9296 9297 rval = qla4xxx_isp_check_reg(ha); 9298 if (rval != QLA_SUCCESS) { 9299 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9300 return FAILED; 9301 } 9302 9303 /* FIXME: wait for hba to go online */ 9304 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9305 if (stat != QLA_SUCCESS) { 9306 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9307 goto eh_dev_reset_done; 9308 } 9309 9310 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9311 cmd->device)) { 9312 ql4_printk(KERN_INFO, ha, 9313 "DEVICE RESET FAILED - waiting for " 9314 "commands.\n"); 9315 goto eh_dev_reset_done; 9316 } 9317 9318 /* Send marker. */ 9319 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9320 MM_LUN_RESET) != QLA_SUCCESS) 9321 goto eh_dev_reset_done; 9322 9323 ql4_printk(KERN_INFO, ha, 9324 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n", 9325 ha->host_no, cmd->device->channel, cmd->device->id, 9326 cmd->device->lun); 9327 9328 ret = SUCCESS; 9329 9330 eh_dev_reset_done: 9331 9332 return ret; 9333 } 9334 9335 /** 9336 * qla4xxx_eh_target_reset - callback for target reset. 9337 * @cmd: Pointer to Linux's SCSI command structure 9338 * 9339 * This routine is called by the Linux OS to reset the target. 9340 **/ 9341 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9342 { 9343 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9344 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9345 int stat, ret; 9346 int rval; 9347 9348 if (!ddb_entry) 9349 return FAILED; 9350 9351 ret = iscsi_block_scsi_eh(cmd); 9352 if (ret) 9353 return ret; 9354 9355 starget_printk(KERN_INFO, scsi_target(cmd->device), 9356 "WARM TARGET RESET ISSUED.\n"); 9357 9358 DEBUG2(printk(KERN_INFO 9359 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9360 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9361 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 9362 ha->dpc_flags, cmd->result, cmd->allowed)); 9363 9364 rval = qla4xxx_isp_check_reg(ha); 9365 if (rval != QLA_SUCCESS) { 9366 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9367 return FAILED; 9368 } 9369 9370 stat = qla4xxx_reset_target(ha, ddb_entry); 9371 if (stat != QLA_SUCCESS) { 9372 starget_printk(KERN_INFO, scsi_target(cmd->device), 9373 "WARM TARGET RESET FAILED.\n"); 9374 return FAILED; 9375 } 9376 9377 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9378 NULL)) { 9379 starget_printk(KERN_INFO, scsi_target(cmd->device), 9380 "WARM TARGET DEVICE RESET FAILED - " 9381 "waiting for commands.\n"); 9382 return FAILED; 9383 } 9384 9385 /* Send marker. */ 9386 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9387 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9388 starget_printk(KERN_INFO, scsi_target(cmd->device), 9389 "WARM TARGET DEVICE RESET FAILED - " 9390 "marker iocb failed.\n"); 9391 return FAILED; 9392 } 9393 9394 starget_printk(KERN_INFO, scsi_target(cmd->device), 9395 "WARM TARGET RESET SUCCEEDED.\n"); 9396 return SUCCESS; 9397 } 9398 9399 /** 9400 * qla4xxx_is_eh_active - check if error handler is running 9401 * @shost: Pointer to SCSI Host struct 9402 * 9403 * This routine finds that if reset host is called in EH 9404 * scenario or from some application like sg_reset 9405 **/ 9406 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9407 { 9408 if (shost->shost_state == SHOST_RECOVERY) 9409 return 1; 9410 return 0; 9411 } 9412 9413 /** 9414 * qla4xxx_eh_host_reset - kernel callback 9415 * @cmd: Pointer to Linux's SCSI command structure 9416 * 9417 * This routine is invoked by the Linux kernel to perform fatal error 9418 * recovery on the specified adapter. 9419 **/ 9420 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9421 { 9422 int return_status = FAILED; 9423 struct scsi_qla_host *ha; 9424 int rval; 9425 9426 ha = to_qla_host(cmd->device->host); 9427 9428 rval = qla4xxx_isp_check_reg(ha); 9429 if (rval != QLA_SUCCESS) { 9430 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9431 return FAILED; 9432 } 9433 9434 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9435 qla4_83xx_set_idc_dontreset(ha); 9436 9437 /* 9438 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9439 * protocol drivers, we should not set device_state to NEED_RESET 9440 */ 9441 if (ql4xdontresethba || 9442 ((is_qla8032(ha) || is_qla8042(ha)) && 9443 qla4_83xx_idc_dontreset(ha))) { 9444 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9445 ha->host_no, __func__)); 9446 9447 /* Clear outstanding srb in queues */ 9448 if (qla4xxx_is_eh_active(cmd->device->host)) 9449 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9450 9451 return FAILED; 9452 } 9453 9454 ql4_printk(KERN_INFO, ha, 9455 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no, 9456 cmd->device->channel, cmd->device->id, cmd->device->lun); 9457 9458 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9459 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9460 "DEAD.\n", ha->host_no, cmd->device->channel, 9461 __func__)); 9462 9463 return FAILED; 9464 } 9465 9466 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9467 if (is_qla80XX(ha)) 9468 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9469 else 9470 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9471 } 9472 9473 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9474 return_status = SUCCESS; 9475 9476 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9477 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9478 9479 return return_status; 9480 } 9481 9482 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9483 { 9484 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9485 uint32_t mbox_sts[MBOX_REG_COUNT]; 9486 struct addr_ctrl_blk_def *acb = NULL; 9487 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9488 int rval = QLA_SUCCESS; 9489 dma_addr_t acb_dma; 9490 9491 acb = dma_alloc_coherent(&ha->pdev->dev, 9492 sizeof(struct addr_ctrl_blk_def), 9493 &acb_dma, GFP_KERNEL); 9494 if (!acb) { 9495 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9496 __func__); 9497 rval = -ENOMEM; 9498 goto exit_port_reset; 9499 } 9500 9501 memset(acb, 0, acb_len); 9502 9503 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9504 if (rval != QLA_SUCCESS) { 9505 rval = -EIO; 9506 goto exit_free_acb; 9507 } 9508 9509 rval = qla4xxx_disable_acb(ha); 9510 if (rval != QLA_SUCCESS) { 9511 rval = -EIO; 9512 goto exit_free_acb; 9513 } 9514 9515 wait_for_completion_timeout(&ha->disable_acb_comp, 9516 DISABLE_ACB_TOV * HZ); 9517 9518 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9519 if (rval != QLA_SUCCESS) { 9520 rval = -EIO; 9521 goto exit_free_acb; 9522 } 9523 9524 exit_free_acb: 9525 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9526 acb, acb_dma); 9527 exit_port_reset: 9528 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9529 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9530 return rval; 9531 } 9532 9533 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9534 { 9535 struct scsi_qla_host *ha = to_qla_host(shost); 9536 int rval = QLA_SUCCESS; 9537 uint32_t idc_ctrl; 9538 9539 if (ql4xdontresethba) { 9540 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9541 __func__)); 9542 rval = -EPERM; 9543 goto exit_host_reset; 9544 } 9545 9546 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9547 goto recover_adapter; 9548 9549 switch (reset_type) { 9550 case SCSI_ADAPTER_RESET: 9551 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9552 break; 9553 case SCSI_FIRMWARE_RESET: 9554 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9555 if (is_qla80XX(ha)) 9556 /* set firmware context reset */ 9557 set_bit(DPC_RESET_HA_FW_CONTEXT, 9558 &ha->dpc_flags); 9559 else { 9560 rval = qla4xxx_context_reset(ha); 9561 goto exit_host_reset; 9562 } 9563 } 9564 break; 9565 } 9566 9567 recover_adapter: 9568 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9569 * reset is issued by application */ 9570 if ((is_qla8032(ha) || is_qla8042(ha)) && 9571 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9572 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9573 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9574 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9575 } 9576 9577 rval = qla4xxx_recover_adapter(ha); 9578 if (rval != QLA_SUCCESS) { 9579 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9580 __func__)); 9581 rval = -EIO; 9582 } 9583 9584 exit_host_reset: 9585 return rval; 9586 } 9587 9588 /* PCI AER driver recovers from all correctable errors w/o 9589 * driver intervention. For uncorrectable errors PCI AER 9590 * driver calls the following device driver's callbacks 9591 * 9592 * - Fatal Errors - link_reset 9593 * - Non-Fatal Errors - driver's error_detected() which 9594 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9595 * 9596 * PCI AER driver calls 9597 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled() 9598 * returns RECOVERED or NEED_RESET if fw_hung 9599 * NEED_RESET - driver's slot_reset() 9600 * DISCONNECT - device is dead & cannot recover 9601 * RECOVERED - driver's resume() 9602 */ 9603 static pci_ers_result_t 9604 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9605 { 9606 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9607 9608 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9609 ha->host_no, __func__, state); 9610 9611 if (!is_aer_supported(ha)) 9612 return PCI_ERS_RESULT_NONE; 9613 9614 switch (state) { 9615 case pci_channel_io_normal: 9616 clear_bit(AF_EEH_BUSY, &ha->flags); 9617 return PCI_ERS_RESULT_CAN_RECOVER; 9618 case pci_channel_io_frozen: 9619 set_bit(AF_EEH_BUSY, &ha->flags); 9620 qla4xxx_mailbox_premature_completion(ha); 9621 qla4xxx_free_irqs(ha); 9622 pci_disable_device(pdev); 9623 /* Return back all IOs */ 9624 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9625 return PCI_ERS_RESULT_NEED_RESET; 9626 case pci_channel_io_perm_failure: 9627 set_bit(AF_EEH_BUSY, &ha->flags); 9628 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9629 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9630 return PCI_ERS_RESULT_DISCONNECT; 9631 } 9632 return PCI_ERS_RESULT_NEED_RESET; 9633 } 9634 9635 /** 9636 * qla4xxx_pci_mmio_enabled() gets called if 9637 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9638 * and read/write to the device still works. 9639 * @pdev: PCI device pointer 9640 **/ 9641 static pci_ers_result_t 9642 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9643 { 9644 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9645 9646 if (!is_aer_supported(ha)) 9647 return PCI_ERS_RESULT_NONE; 9648 9649 return PCI_ERS_RESULT_RECOVERED; 9650 } 9651 9652 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9653 { 9654 uint32_t rval = QLA_ERROR; 9655 int fn; 9656 struct pci_dev *other_pdev = NULL; 9657 9658 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9659 9660 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9661 9662 if (test_bit(AF_ONLINE, &ha->flags)) { 9663 clear_bit(AF_ONLINE, &ha->flags); 9664 clear_bit(AF_LINK_UP, &ha->flags); 9665 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9666 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9667 } 9668 9669 fn = PCI_FUNC(ha->pdev->devfn); 9670 if (is_qla8022(ha)) { 9671 while (fn > 0) { 9672 fn--; 9673 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9674 ha->host_no, __func__, fn); 9675 /* Get the pci device given the domain, bus, 9676 * slot/function number */ 9677 other_pdev = pci_get_domain_bus_and_slot( 9678 pci_domain_nr(ha->pdev->bus), 9679 ha->pdev->bus->number, 9680 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9681 fn)); 9682 9683 if (!other_pdev) 9684 continue; 9685 9686 if (atomic_read(&other_pdev->enable_cnt)) { 9687 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9688 ha->host_no, __func__, fn); 9689 pci_dev_put(other_pdev); 9690 break; 9691 } 9692 pci_dev_put(other_pdev); 9693 } 9694 } else { 9695 /* this case is meant for ISP83xx/ISP84xx only */ 9696 if (qla4_83xx_can_perform_reset(ha)) { 9697 /* reset fn as iSCSI is going to perform the reset */ 9698 fn = 0; 9699 } 9700 } 9701 9702 /* The first function on the card, the reset owner will 9703 * start & initialize the firmware. The other functions 9704 * on the card will reset the firmware context 9705 */ 9706 if (!fn) { 9707 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9708 "0x%x is the owner\n", ha->host_no, __func__, 9709 ha->pdev->devfn); 9710 9711 ha->isp_ops->idc_lock(ha); 9712 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9713 QLA8XXX_DEV_COLD); 9714 ha->isp_ops->idc_unlock(ha); 9715 9716 rval = qla4_8xxx_update_idc_reg(ha); 9717 if (rval == QLA_ERROR) { 9718 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9719 ha->host_no, __func__); 9720 ha->isp_ops->idc_lock(ha); 9721 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9722 QLA8XXX_DEV_FAILED); 9723 ha->isp_ops->idc_unlock(ha); 9724 goto exit_error_recovery; 9725 } 9726 9727 clear_bit(AF_FW_RECOVERY, &ha->flags); 9728 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9729 9730 if (rval != QLA_SUCCESS) { 9731 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9732 "FAILED\n", ha->host_no, __func__); 9733 qla4xxx_free_irqs(ha); 9734 ha->isp_ops->idc_lock(ha); 9735 qla4_8xxx_clear_drv_active(ha); 9736 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9737 QLA8XXX_DEV_FAILED); 9738 ha->isp_ops->idc_unlock(ha); 9739 } else { 9740 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9741 "READY\n", ha->host_no, __func__); 9742 ha->isp_ops->idc_lock(ha); 9743 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9744 QLA8XXX_DEV_READY); 9745 /* Clear driver state register */ 9746 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9747 qla4_8xxx_set_drv_active(ha); 9748 ha->isp_ops->idc_unlock(ha); 9749 ha->isp_ops->enable_intrs(ha); 9750 } 9751 } else { 9752 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9753 "the reset owner\n", ha->host_no, __func__, 9754 ha->pdev->devfn); 9755 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9756 QLA8XXX_DEV_READY)) { 9757 clear_bit(AF_FW_RECOVERY, &ha->flags); 9758 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9759 if (rval == QLA_SUCCESS) 9760 ha->isp_ops->enable_intrs(ha); 9761 else 9762 qla4xxx_free_irqs(ha); 9763 9764 ha->isp_ops->idc_lock(ha); 9765 qla4_8xxx_set_drv_active(ha); 9766 ha->isp_ops->idc_unlock(ha); 9767 } 9768 } 9769 exit_error_recovery: 9770 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9771 return rval; 9772 } 9773 9774 static pci_ers_result_t 9775 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9776 { 9777 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9778 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9779 int rc; 9780 9781 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9782 ha->host_no, __func__); 9783 9784 if (!is_aer_supported(ha)) 9785 return PCI_ERS_RESULT_NONE; 9786 9787 /* Restore the saved state of PCIe device - 9788 * BAR registers, PCI Config space, PCIX, MSI, 9789 * IOV states 9790 */ 9791 pci_restore_state(pdev); 9792 9793 /* pci_restore_state() clears the saved_state flag of the device 9794 * save restored state which resets saved_state flag 9795 */ 9796 pci_save_state(pdev); 9797 9798 /* Initialize device or resume if in suspended state */ 9799 rc = pci_enable_device(pdev); 9800 if (rc) { 9801 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9802 "device after reset\n", ha->host_no, __func__); 9803 goto exit_slot_reset; 9804 } 9805 9806 ha->isp_ops->disable_intrs(ha); 9807 9808 if (is_qla80XX(ha)) { 9809 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9810 ret = PCI_ERS_RESULT_RECOVERED; 9811 goto exit_slot_reset; 9812 } else 9813 goto exit_slot_reset; 9814 } 9815 9816 exit_slot_reset: 9817 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9818 "device after reset\n", ha->host_no, __func__, ret); 9819 return ret; 9820 } 9821 9822 static void 9823 qla4xxx_pci_resume(struct pci_dev *pdev) 9824 { 9825 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9826 int ret; 9827 9828 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9829 ha->host_no, __func__); 9830 9831 ret = qla4xxx_wait_for_hba_online(ha); 9832 if (ret != QLA_SUCCESS) { 9833 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9834 "resume I/O from slot/link_reset\n", ha->host_no, 9835 __func__); 9836 } 9837 9838 clear_bit(AF_EEH_BUSY, &ha->flags); 9839 } 9840 9841 static const struct pci_error_handlers qla4xxx_err_handler = { 9842 .error_detected = qla4xxx_pci_error_detected, 9843 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9844 .slot_reset = qla4xxx_pci_slot_reset, 9845 .resume = qla4xxx_pci_resume, 9846 }; 9847 9848 static struct pci_device_id qla4xxx_pci_tbl[] = { 9849 { 9850 .vendor = PCI_VENDOR_ID_QLOGIC, 9851 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9852 .subvendor = PCI_ANY_ID, 9853 .subdevice = PCI_ANY_ID, 9854 }, 9855 { 9856 .vendor = PCI_VENDOR_ID_QLOGIC, 9857 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9858 .subvendor = PCI_ANY_ID, 9859 .subdevice = PCI_ANY_ID, 9860 }, 9861 { 9862 .vendor = PCI_VENDOR_ID_QLOGIC, 9863 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9864 .subvendor = PCI_ANY_ID, 9865 .subdevice = PCI_ANY_ID, 9866 }, 9867 { 9868 .vendor = PCI_VENDOR_ID_QLOGIC, 9869 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9870 .subvendor = PCI_ANY_ID, 9871 .subdevice = PCI_ANY_ID, 9872 }, 9873 { 9874 .vendor = PCI_VENDOR_ID_QLOGIC, 9875 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9876 .subvendor = PCI_ANY_ID, 9877 .subdevice = PCI_ANY_ID, 9878 }, 9879 { 9880 .vendor = PCI_VENDOR_ID_QLOGIC, 9881 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9882 .subvendor = PCI_ANY_ID, 9883 .subdevice = PCI_ANY_ID, 9884 }, 9885 {0, 0}, 9886 }; 9887 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9888 9889 static struct pci_driver qla4xxx_pci_driver = { 9890 .name = DRIVER_NAME, 9891 .id_table = qla4xxx_pci_tbl, 9892 .probe = qla4xxx_probe_adapter, 9893 .remove = qla4xxx_remove_adapter, 9894 .err_handler = &qla4xxx_err_handler, 9895 }; 9896 9897 static int __init qla4xxx_module_init(void) 9898 { 9899 int ret; 9900 9901 if (ql4xqfulltracking) 9902 qla4xxx_driver_template.track_queue_depth = 1; 9903 9904 /* Allocate cache for SRBs. */ 9905 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9906 SLAB_HWCACHE_ALIGN, NULL); 9907 if (srb_cachep == NULL) { 9908 printk(KERN_ERR 9909 "%s: Unable to allocate SRB cache..." 9910 "Failing load!\n", DRIVER_NAME); 9911 ret = -ENOMEM; 9912 goto no_srp_cache; 9913 } 9914 9915 /* Derive version string. */ 9916 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9917 if (ql4xextended_error_logging) 9918 strcat(qla4xxx_version_str, "-debug"); 9919 9920 qla4xxx_scsi_transport = 9921 iscsi_register_transport(&qla4xxx_iscsi_transport); 9922 if (!qla4xxx_scsi_transport){ 9923 ret = -ENODEV; 9924 goto release_srb_cache; 9925 } 9926 9927 ret = pci_register_driver(&qla4xxx_pci_driver); 9928 if (ret) 9929 goto unregister_transport; 9930 9931 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9932 return 0; 9933 9934 unregister_transport: 9935 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9936 release_srb_cache: 9937 kmem_cache_destroy(srb_cachep); 9938 no_srp_cache: 9939 return ret; 9940 } 9941 9942 static void __exit qla4xxx_module_exit(void) 9943 { 9944 pci_unregister_driver(&qla4xxx_pci_driver); 9945 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9946 kmem_cache_destroy(srb_cachep); 9947 } 9948 9949 module_init(qla4xxx_module_init); 9950 module_exit(qla4xxx_module_exit); 9951 9952 MODULE_AUTHOR("QLogic Corporation"); 9953 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9954 MODULE_LICENSE("GPL"); 9955 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9956