1 /* 2 * QLogic iSCSI HBA Driver 3 * Copyright (c) 2003-2013 QLogic Corporation 4 * 5 * See LICENSE.qla4xxx for copyright and licensing details. 6 */ 7 #include <linux/moduleparam.h> 8 #include <linux/slab.h> 9 #include <linux/blkdev.h> 10 #include <linux/iscsi_boot_sysfs.h> 11 #include <linux/inet.h> 12 13 #include <scsi/scsi_tcq.h> 14 #include <scsi/scsicam.h> 15 16 #include "ql4_def.h" 17 #include "ql4_version.h" 18 #include "ql4_glbl.h" 19 #include "ql4_dbg.h" 20 #include "ql4_inline.h" 21 #include "ql4_83xx.h" 22 23 /* 24 * Driver version 25 */ 26 static char qla4xxx_version_str[40]; 27 28 /* 29 * SRB allocation cache 30 */ 31 static struct kmem_cache *srb_cachep; 32 33 /* 34 * Module parameter information and variables 35 */ 36 static int ql4xdisablesysfsboot = 1; 37 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); 38 MODULE_PARM_DESC(ql4xdisablesysfsboot, 39 " Set to disable exporting boot targets to sysfs.\n" 40 "\t\t 0 - Export boot targets\n" 41 "\t\t 1 - Do not export boot targets (Default)"); 42 43 int ql4xdontresethba; 44 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 45 MODULE_PARM_DESC(ql4xdontresethba, 46 " Don't reset the HBA for driver recovery.\n" 47 "\t\t 0 - It will reset HBA (Default)\n" 48 "\t\t 1 - It will NOT reset HBA"); 49 50 int ql4xextended_error_logging; 51 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 52 MODULE_PARM_DESC(ql4xextended_error_logging, 53 " Option to enable extended error logging.\n" 54 "\t\t 0 - no logging (Default)\n" 55 "\t\t 2 - debug logging"); 56 57 int ql4xenablemsix = 1; 58 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 59 MODULE_PARM_DESC(ql4xenablemsix, 60 " Set to enable MSI or MSI-X interrupt mechanism.\n" 61 "\t\t 0 = enable INTx interrupt mechanism.\n" 62 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n" 63 "\t\t 2 = enable MSI interrupt mechanism."); 64 65 #define QL4_DEF_QDEPTH 32 66 static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 67 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 68 MODULE_PARM_DESC(ql4xmaxqdepth, 69 " Maximum queue depth to report for target devices.\n" 70 "\t\t Default: 32."); 71 72 static int ql4xqfulltracking = 1; 73 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR); 74 MODULE_PARM_DESC(ql4xqfulltracking, 75 " Enable or disable dynamic tracking and adjustment of\n" 76 "\t\t scsi device queue depth.\n" 77 "\t\t 0 - Disable.\n" 78 "\t\t 1 - Enable. (Default)"); 79 80 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 81 module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 82 MODULE_PARM_DESC(ql4xsess_recovery_tmo, 83 " Target Session Recovery Timeout.\n" 84 "\t\t Default: 120 sec."); 85 86 int ql4xmdcapmask = 0; 87 module_param(ql4xmdcapmask, int, S_IRUGO); 88 MODULE_PARM_DESC(ql4xmdcapmask, 89 " Set the Minidump driver capture mask level.\n" 90 "\t\t Default is 0 (firmware default capture mask)\n" 91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF"); 92 93 int ql4xenablemd = 1; 94 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR); 95 MODULE_PARM_DESC(ql4xenablemd, 96 " Set to enable minidump.\n" 97 "\t\t 0 - disable minidump\n" 98 "\t\t 1 - enable minidump (Default)"); 99 100 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 101 /* 102 * SCSI host template entry points 103 */ 104 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 105 106 /* 107 * iSCSI template entry points 108 */ 109 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 110 enum iscsi_param param, char *buf); 111 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 112 enum iscsi_param param, char *buf); 113 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 114 enum iscsi_host_param param, char *buf); 115 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, 116 uint32_t len); 117 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 118 enum iscsi_param_type param_type, 119 int param, char *buf); 120 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 121 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 122 struct sockaddr *dst_addr, 123 int non_blocking); 124 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 125 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 126 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 127 enum iscsi_param param, char *buf); 128 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 129 static struct iscsi_cls_conn * 130 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 131 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 132 struct iscsi_cls_conn *cls_conn, 133 uint64_t transport_fd, int is_leading); 134 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 135 static struct iscsi_cls_session * 136 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 137 uint16_t qdepth, uint32_t initial_cmdsn); 138 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 139 static void qla4xxx_task_work(struct work_struct *wdata); 140 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 141 static int qla4xxx_task_xmit(struct iscsi_task *); 142 static void qla4xxx_task_cleanup(struct iscsi_task *); 143 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 144 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 145 struct iscsi_stats *stats); 146 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 147 uint32_t iface_type, uint32_t payload_size, 148 uint32_t pid, struct sockaddr *dst_addr); 149 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 150 uint32_t *num_entries, char *buf); 151 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx); 152 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, 153 int len); 154 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len); 155 156 /* 157 * SCSI host template entry points 158 */ 159 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 160 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 161 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 162 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 163 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 164 static int qla4xxx_slave_alloc(struct scsi_device *device); 165 static umode_t qla4_attr_is_visible(int param_type, int param); 166 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); 167 168 /* 169 * iSCSI Flash DDB sysfs entry points 170 */ 171 static int 172 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 173 struct iscsi_bus_flash_conn *fnode_conn, 174 void *data, int len); 175 static int 176 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 177 int param, char *buf); 178 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 179 int len); 180 static int 181 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess); 182 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 183 struct iscsi_bus_flash_conn *fnode_conn); 184 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 185 struct iscsi_bus_flash_conn *fnode_conn); 186 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess); 187 188 static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 189 QLA82XX_LEGACY_INTR_CONFIG; 190 191 static const uint32_t qla4_82xx_reg_tbl[] = { 192 QLA82XX_PEG_HALT_STATUS1, 193 QLA82XX_PEG_HALT_STATUS2, 194 QLA82XX_PEG_ALIVE_COUNTER, 195 QLA82XX_CRB_DRV_ACTIVE, 196 QLA82XX_CRB_DEV_STATE, 197 QLA82XX_CRB_DRV_STATE, 198 QLA82XX_CRB_DRV_SCRATCH, 199 QLA82XX_CRB_DEV_PART_INFO, 200 QLA82XX_CRB_DRV_IDC_VERSION, 201 QLA82XX_FW_VERSION_MAJOR, 202 QLA82XX_FW_VERSION_MINOR, 203 QLA82XX_FW_VERSION_SUB, 204 CRB_CMDPEG_STATE, 205 CRB_TEMP_STATE, 206 }; 207 208 static const uint32_t qla4_83xx_reg_tbl[] = { 209 QLA83XX_PEG_HALT_STATUS1, 210 QLA83XX_PEG_HALT_STATUS2, 211 QLA83XX_PEG_ALIVE_COUNTER, 212 QLA83XX_CRB_DRV_ACTIVE, 213 QLA83XX_CRB_DEV_STATE, 214 QLA83XX_CRB_DRV_STATE, 215 QLA83XX_CRB_DRV_SCRATCH, 216 QLA83XX_CRB_DEV_PART_INFO1, 217 QLA83XX_CRB_IDC_VER_MAJOR, 218 QLA83XX_FW_VER_MAJOR, 219 QLA83XX_FW_VER_MINOR, 220 QLA83XX_FW_VER_SUB, 221 QLA83XX_CMDPEG_STATE, 222 QLA83XX_ASIC_TEMP, 223 }; 224 225 static struct scsi_host_template qla4xxx_driver_template = { 226 .module = THIS_MODULE, 227 .name = DRIVER_NAME, 228 .proc_name = DRIVER_NAME, 229 .queuecommand = qla4xxx_queuecommand, 230 231 .eh_abort_handler = qla4xxx_eh_abort, 232 .eh_device_reset_handler = qla4xxx_eh_device_reset, 233 .eh_target_reset_handler = qla4xxx_eh_target_reset, 234 .eh_host_reset_handler = qla4xxx_eh_host_reset, 235 .eh_timed_out = qla4xxx_eh_cmd_timed_out, 236 237 .slave_alloc = qla4xxx_slave_alloc, 238 .change_queue_depth = scsi_change_queue_depth, 239 240 .this_id = -1, 241 .cmd_per_lun = 3, 242 .sg_tablesize = SG_ALL, 243 244 .max_sectors = 0xFFFF, 245 .shost_attrs = qla4xxx_host_attrs, 246 .host_reset = qla4xxx_host_reset, 247 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 248 }; 249 250 static struct iscsi_transport qla4xxx_iscsi_transport = { 251 .owner = THIS_MODULE, 252 .name = DRIVER_NAME, 253 .caps = CAP_TEXT_NEGO | 254 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 255 CAP_DATADGST | CAP_LOGIN_OFFLOAD | 256 CAP_MULTI_R2T, 257 .attr_is_visible = qla4_attr_is_visible, 258 .create_session = qla4xxx_session_create, 259 .destroy_session = qla4xxx_session_destroy, 260 .start_conn = qla4xxx_conn_start, 261 .create_conn = qla4xxx_conn_create, 262 .bind_conn = qla4xxx_conn_bind, 263 .stop_conn = iscsi_conn_stop, 264 .destroy_conn = qla4xxx_conn_destroy, 265 .set_param = iscsi_set_param, 266 .get_conn_param = qla4xxx_conn_get_param, 267 .get_session_param = qla4xxx_session_get_param, 268 .get_ep_param = qla4xxx_get_ep_param, 269 .ep_connect = qla4xxx_ep_connect, 270 .ep_poll = qla4xxx_ep_poll, 271 .ep_disconnect = qla4xxx_ep_disconnect, 272 .get_stats = qla4xxx_conn_get_stats, 273 .send_pdu = iscsi_conn_send_pdu, 274 .xmit_task = qla4xxx_task_xmit, 275 .cleanup_task = qla4xxx_task_cleanup, 276 .alloc_pdu = qla4xxx_alloc_pdu, 277 278 .get_host_param = qla4xxx_host_get_param, 279 .set_iface_param = qla4xxx_iface_set_param, 280 .get_iface_param = qla4xxx_get_iface_param, 281 .bsg_request = qla4xxx_bsg_request, 282 .send_ping = qla4xxx_send_ping, 283 .get_chap = qla4xxx_get_chap_list, 284 .delete_chap = qla4xxx_delete_chap, 285 .set_chap = qla4xxx_set_chap_entry, 286 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param, 287 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param, 288 .new_flashnode = qla4xxx_sysfs_ddb_add, 289 .del_flashnode = qla4xxx_sysfs_ddb_delete, 290 .login_flashnode = qla4xxx_sysfs_ddb_login, 291 .logout_flashnode = qla4xxx_sysfs_ddb_logout, 292 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid, 293 .get_host_stats = qla4xxx_get_host_stats, 294 }; 295 296 static struct scsi_transport_template *qla4xxx_scsi_transport; 297 298 static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha) 299 { 300 u32 reg_val = 0; 301 int rval = QLA_SUCCESS; 302 303 if (is_qla8022(ha)) 304 reg_val = readl(&ha->qla4_82xx_reg->host_status); 305 else if (is_qla8032(ha) || is_qla8042(ha)) 306 reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER); 307 else 308 reg_val = readw(&ha->reg->ctrl_status); 309 310 if (reg_val == QL4_ISP_REG_DISCONNECT) 311 rval = QLA_ERROR; 312 313 return rval; 314 } 315 316 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 317 uint32_t iface_type, uint32_t payload_size, 318 uint32_t pid, struct sockaddr *dst_addr) 319 { 320 struct scsi_qla_host *ha = to_qla_host(shost); 321 struct sockaddr_in *addr; 322 struct sockaddr_in6 *addr6; 323 uint32_t options = 0; 324 uint8_t ipaddr[IPv6_ADDR_LEN]; 325 int rval; 326 327 memset(ipaddr, 0, IPv6_ADDR_LEN); 328 /* IPv4 to IPv4 */ 329 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && 330 (dst_addr->sa_family == AF_INET)) { 331 addr = (struct sockaddr_in *)dst_addr; 332 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); 333 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " 334 "dest: %pI4\n", __func__, 335 &ha->ip_config.ip_address, ipaddr)); 336 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, 337 ipaddr); 338 if (rval) 339 rval = -EINVAL; 340 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && 341 (dst_addr->sa_family == AF_INET6)) { 342 /* IPv6 to IPv6 */ 343 addr6 = (struct sockaddr_in6 *)dst_addr; 344 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); 345 346 options |= PING_IPV6_PROTOCOL_ENABLE; 347 348 /* Ping using LinkLocal address */ 349 if ((iface_num == 0) || (iface_num == 1)) { 350 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " 351 "src: %pI6 dest: %pI6\n", __func__, 352 &ha->ip_config.ipv6_link_local_addr, 353 ipaddr)); 354 options |= PING_IPV6_LINKLOCAL_ADDR; 355 rval = qla4xxx_ping_iocb(ha, options, payload_size, 356 pid, ipaddr); 357 } else { 358 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " 359 "not supported\n", __func__, iface_num); 360 rval = -ENOSYS; 361 goto exit_send_ping; 362 } 363 364 /* 365 * If ping using LinkLocal address fails, try ping using 366 * IPv6 address 367 */ 368 if (rval != QLA_SUCCESS) { 369 options &= ~PING_IPV6_LINKLOCAL_ADDR; 370 if (iface_num == 0) { 371 options |= PING_IPV6_ADDR0; 372 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 373 "Ping src: %pI6 " 374 "dest: %pI6\n", __func__, 375 &ha->ip_config.ipv6_addr0, 376 ipaddr)); 377 } else if (iface_num == 1) { 378 options |= PING_IPV6_ADDR1; 379 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 380 "Ping src: %pI6 " 381 "dest: %pI6\n", __func__, 382 &ha->ip_config.ipv6_addr1, 383 ipaddr)); 384 } 385 rval = qla4xxx_ping_iocb(ha, options, payload_size, 386 pid, ipaddr); 387 if (rval) 388 rval = -EINVAL; 389 } 390 } else 391 rval = -ENOSYS; 392 exit_send_ping: 393 return rval; 394 } 395 396 static umode_t qla4_attr_is_visible(int param_type, int param) 397 { 398 switch (param_type) { 399 case ISCSI_HOST_PARAM: 400 switch (param) { 401 case ISCSI_HOST_PARAM_HWADDRESS: 402 case ISCSI_HOST_PARAM_IPADDRESS: 403 case ISCSI_HOST_PARAM_INITIATOR_NAME: 404 case ISCSI_HOST_PARAM_PORT_STATE: 405 case ISCSI_HOST_PARAM_PORT_SPEED: 406 return S_IRUGO; 407 default: 408 return 0; 409 } 410 case ISCSI_PARAM: 411 switch (param) { 412 case ISCSI_PARAM_PERSISTENT_ADDRESS: 413 case ISCSI_PARAM_PERSISTENT_PORT: 414 case ISCSI_PARAM_CONN_ADDRESS: 415 case ISCSI_PARAM_CONN_PORT: 416 case ISCSI_PARAM_TARGET_NAME: 417 case ISCSI_PARAM_TPGT: 418 case ISCSI_PARAM_TARGET_ALIAS: 419 case ISCSI_PARAM_MAX_BURST: 420 case ISCSI_PARAM_MAX_R2T: 421 case ISCSI_PARAM_FIRST_BURST: 422 case ISCSI_PARAM_MAX_RECV_DLENGTH: 423 case ISCSI_PARAM_MAX_XMIT_DLENGTH: 424 case ISCSI_PARAM_IFACE_NAME: 425 case ISCSI_PARAM_CHAP_OUT_IDX: 426 case ISCSI_PARAM_CHAP_IN_IDX: 427 case ISCSI_PARAM_USERNAME: 428 case ISCSI_PARAM_PASSWORD: 429 case ISCSI_PARAM_USERNAME_IN: 430 case ISCSI_PARAM_PASSWORD_IN: 431 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE: 432 case ISCSI_PARAM_DISCOVERY_SESS: 433 case ISCSI_PARAM_PORTAL_TYPE: 434 case ISCSI_PARAM_CHAP_AUTH_EN: 435 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN: 436 case ISCSI_PARAM_BIDI_CHAP_EN: 437 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL: 438 case ISCSI_PARAM_DEF_TIME2WAIT: 439 case ISCSI_PARAM_DEF_TIME2RETAIN: 440 case ISCSI_PARAM_HDRDGST_EN: 441 case ISCSI_PARAM_DATADGST_EN: 442 case ISCSI_PARAM_INITIAL_R2T_EN: 443 case ISCSI_PARAM_IMM_DATA_EN: 444 case ISCSI_PARAM_PDU_INORDER_EN: 445 case ISCSI_PARAM_DATASEQ_INORDER_EN: 446 case ISCSI_PARAM_MAX_SEGMENT_SIZE: 447 case ISCSI_PARAM_TCP_TIMESTAMP_STAT: 448 case ISCSI_PARAM_TCP_WSF_DISABLE: 449 case ISCSI_PARAM_TCP_NAGLE_DISABLE: 450 case ISCSI_PARAM_TCP_TIMER_SCALE: 451 case ISCSI_PARAM_TCP_TIMESTAMP_EN: 452 case ISCSI_PARAM_TCP_XMIT_WSF: 453 case ISCSI_PARAM_TCP_RECV_WSF: 454 case ISCSI_PARAM_IP_FRAGMENT_DISABLE: 455 case ISCSI_PARAM_IPV4_TOS: 456 case ISCSI_PARAM_IPV6_TC: 457 case ISCSI_PARAM_IPV6_FLOW_LABEL: 458 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6: 459 case ISCSI_PARAM_KEEPALIVE_TMO: 460 case ISCSI_PARAM_LOCAL_PORT: 461 case ISCSI_PARAM_ISID: 462 case ISCSI_PARAM_TSID: 463 case ISCSI_PARAM_DEF_TASKMGMT_TMO: 464 case ISCSI_PARAM_ERL: 465 case ISCSI_PARAM_STATSN: 466 case ISCSI_PARAM_EXP_STATSN: 467 case ISCSI_PARAM_DISCOVERY_PARENT_IDX: 468 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE: 469 case ISCSI_PARAM_LOCAL_IPADDR: 470 return S_IRUGO; 471 default: 472 return 0; 473 } 474 case ISCSI_NET_PARAM: 475 switch (param) { 476 case ISCSI_NET_PARAM_IPV4_ADDR: 477 case ISCSI_NET_PARAM_IPV4_SUBNET: 478 case ISCSI_NET_PARAM_IPV4_GW: 479 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 480 case ISCSI_NET_PARAM_IFACE_ENABLE: 481 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 482 case ISCSI_NET_PARAM_IPV6_ADDR: 483 case ISCSI_NET_PARAM_IPV6_ROUTER: 484 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 485 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 486 case ISCSI_NET_PARAM_VLAN_ID: 487 case ISCSI_NET_PARAM_VLAN_PRIORITY: 488 case ISCSI_NET_PARAM_VLAN_ENABLED: 489 case ISCSI_NET_PARAM_MTU: 490 case ISCSI_NET_PARAM_PORT: 491 case ISCSI_NET_PARAM_IPADDR_STATE: 492 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 493 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 494 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 495 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 496 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 497 case ISCSI_NET_PARAM_TCP_WSF: 498 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 499 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 500 case ISCSI_NET_PARAM_CACHE_ID: 501 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 502 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 503 case ISCSI_NET_PARAM_IPV4_TOS_EN: 504 case ISCSI_NET_PARAM_IPV4_TOS: 505 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 506 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 507 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 508 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 509 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 510 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 511 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 512 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 513 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 514 case ISCSI_NET_PARAM_REDIRECT_EN: 515 case ISCSI_NET_PARAM_IPV4_TTL: 516 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 517 case ISCSI_NET_PARAM_IPV6_MLD_EN: 518 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 519 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 520 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 521 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 522 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 523 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 524 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 525 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 526 return S_IRUGO; 527 default: 528 return 0; 529 } 530 case ISCSI_IFACE_PARAM: 531 switch (param) { 532 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 533 case ISCSI_IFACE_PARAM_HDRDGST_EN: 534 case ISCSI_IFACE_PARAM_DATADGST_EN: 535 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 536 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 537 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 538 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 539 case ISCSI_IFACE_PARAM_ERL: 540 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 541 case ISCSI_IFACE_PARAM_FIRST_BURST: 542 case ISCSI_IFACE_PARAM_MAX_R2T: 543 case ISCSI_IFACE_PARAM_MAX_BURST: 544 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 545 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 546 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 547 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 548 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 549 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 550 return S_IRUGO; 551 default: 552 return 0; 553 } 554 case ISCSI_FLASHNODE_PARAM: 555 switch (param) { 556 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 557 case ISCSI_FLASHNODE_PORTAL_TYPE: 558 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 559 case ISCSI_FLASHNODE_DISCOVERY_SESS: 560 case ISCSI_FLASHNODE_ENTRY_EN: 561 case ISCSI_FLASHNODE_HDR_DGST_EN: 562 case ISCSI_FLASHNODE_DATA_DGST_EN: 563 case ISCSI_FLASHNODE_IMM_DATA_EN: 564 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 565 case ISCSI_FLASHNODE_DATASEQ_INORDER: 566 case ISCSI_FLASHNODE_PDU_INORDER: 567 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 568 case ISCSI_FLASHNODE_SNACK_REQ_EN: 569 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 570 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 571 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 572 case ISCSI_FLASHNODE_ERL: 573 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 574 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 575 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 576 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 577 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 578 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 579 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 580 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 581 case ISCSI_FLASHNODE_FIRST_BURST: 582 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 583 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 584 case ISCSI_FLASHNODE_MAX_R2T: 585 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 586 case ISCSI_FLASHNODE_ISID: 587 case ISCSI_FLASHNODE_TSID: 588 case ISCSI_FLASHNODE_PORT: 589 case ISCSI_FLASHNODE_MAX_BURST: 590 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 591 case ISCSI_FLASHNODE_IPADDR: 592 case ISCSI_FLASHNODE_ALIAS: 593 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 594 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 595 case ISCSI_FLASHNODE_LOCAL_PORT: 596 case ISCSI_FLASHNODE_IPV4_TOS: 597 case ISCSI_FLASHNODE_IPV6_TC: 598 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 599 case ISCSI_FLASHNODE_NAME: 600 case ISCSI_FLASHNODE_TPGT: 601 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 602 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 603 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 604 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 605 case ISCSI_FLASHNODE_TCP_RECV_WSF: 606 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 607 case ISCSI_FLASHNODE_USERNAME: 608 case ISCSI_FLASHNODE_PASSWORD: 609 case ISCSI_FLASHNODE_STATSN: 610 case ISCSI_FLASHNODE_EXP_STATSN: 611 case ISCSI_FLASHNODE_IS_BOOT_TGT: 612 return S_IRUGO; 613 default: 614 return 0; 615 } 616 } 617 618 return 0; 619 } 620 621 /** 622 * qla4xxx_create chap_list - Create CHAP list from FLASH 623 * @ha: pointer to adapter structure 624 * 625 * Read flash and make a list of CHAP entries, during login when a CHAP entry 626 * is received, it will be checked in this list. If entry exist then the CHAP 627 * entry index is set in the DDB. If CHAP entry does not exist in this list 628 * then a new entry is added in FLASH in CHAP table and the index obtained is 629 * used in the DDB. 630 **/ 631 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 632 { 633 int rval = 0; 634 uint8_t *chap_flash_data = NULL; 635 uint32_t offset; 636 dma_addr_t chap_dma; 637 uint32_t chap_size = 0; 638 639 if (is_qla40XX(ha)) 640 chap_size = MAX_CHAP_ENTRIES_40XX * 641 sizeof(struct ql4_chap_table); 642 else /* Single region contains CHAP info for both 643 * ports which is divided into half for each port. 644 */ 645 chap_size = ha->hw.flt_chap_size / 2; 646 647 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 648 &chap_dma, GFP_KERNEL); 649 if (!chap_flash_data) { 650 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 651 return; 652 } 653 654 if (is_qla40XX(ha)) { 655 offset = FLASH_CHAP_OFFSET; 656 } else { 657 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 658 if (ha->port_num == 1) 659 offset += chap_size; 660 } 661 662 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 663 if (rval != QLA_SUCCESS) 664 goto exit_chap_list; 665 666 if (ha->chap_list == NULL) 667 ha->chap_list = vmalloc(chap_size); 668 if (ha->chap_list == NULL) { 669 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 670 goto exit_chap_list; 671 } 672 673 memset(ha->chap_list, 0, chap_size); 674 memcpy(ha->chap_list, chap_flash_data, chap_size); 675 676 exit_chap_list: 677 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma); 678 } 679 680 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha, 681 int16_t chap_index, 682 struct ql4_chap_table **chap_entry) 683 { 684 int rval = QLA_ERROR; 685 int max_chap_entries; 686 687 if (!ha->chap_list) { 688 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 689 rval = QLA_ERROR; 690 goto exit_get_chap; 691 } 692 693 if (is_qla80XX(ha)) 694 max_chap_entries = (ha->hw.flt_chap_size / 2) / 695 sizeof(struct ql4_chap_table); 696 else 697 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 698 699 if (chap_index > max_chap_entries) { 700 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n"); 701 rval = QLA_ERROR; 702 goto exit_get_chap; 703 } 704 705 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index; 706 if ((*chap_entry)->cookie != 707 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 708 rval = QLA_ERROR; 709 *chap_entry = NULL; 710 } else { 711 rval = QLA_SUCCESS; 712 } 713 714 exit_get_chap: 715 return rval; 716 } 717 718 /** 719 * qla4xxx_find_free_chap_index - Find the first free chap index 720 * @ha: pointer to adapter structure 721 * @chap_index: CHAP index to be returned 722 * 723 * Find the first free chap index available in the chap table 724 * 725 * Note: Caller should acquire the chap lock before getting here. 726 **/ 727 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha, 728 uint16_t *chap_index) 729 { 730 int i, rval; 731 int free_index = -1; 732 int max_chap_entries = 0; 733 struct ql4_chap_table *chap_table; 734 735 if (is_qla80XX(ha)) 736 max_chap_entries = (ha->hw.flt_chap_size / 2) / 737 sizeof(struct ql4_chap_table); 738 else 739 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 740 741 if (!ha->chap_list) { 742 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 743 rval = QLA_ERROR; 744 goto exit_find_chap; 745 } 746 747 for (i = 0; i < max_chap_entries; i++) { 748 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 749 750 if ((chap_table->cookie != 751 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) && 752 (i > MAX_RESRV_CHAP_IDX)) { 753 free_index = i; 754 break; 755 } 756 } 757 758 if (free_index != -1) { 759 *chap_index = free_index; 760 rval = QLA_SUCCESS; 761 } else { 762 rval = QLA_ERROR; 763 } 764 765 exit_find_chap: 766 return rval; 767 } 768 769 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 770 uint32_t *num_entries, char *buf) 771 { 772 struct scsi_qla_host *ha = to_qla_host(shost); 773 struct ql4_chap_table *chap_table; 774 struct iscsi_chap_rec *chap_rec; 775 int max_chap_entries = 0; 776 int valid_chap_entries = 0; 777 int ret = 0, i; 778 779 if (is_qla80XX(ha)) 780 max_chap_entries = (ha->hw.flt_chap_size / 2) / 781 sizeof(struct ql4_chap_table); 782 else 783 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 784 785 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 786 __func__, *num_entries, chap_tbl_idx); 787 788 if (!buf) { 789 ret = -ENOMEM; 790 goto exit_get_chap_list; 791 } 792 793 qla4xxx_create_chap_list(ha); 794 795 chap_rec = (struct iscsi_chap_rec *) buf; 796 mutex_lock(&ha->chap_sem); 797 for (i = chap_tbl_idx; i < max_chap_entries; i++) { 798 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 799 if (chap_table->cookie != 800 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) 801 continue; 802 803 chap_rec->chap_tbl_idx = i; 804 strlcpy(chap_rec->username, chap_table->name, 805 ISCSI_CHAP_AUTH_NAME_MAX_LEN); 806 strlcpy(chap_rec->password, chap_table->secret, 807 QL4_CHAP_MAX_SECRET_LEN); 808 chap_rec->password_length = chap_table->secret_len; 809 810 if (chap_table->flags & BIT_7) /* local */ 811 chap_rec->chap_type = CHAP_TYPE_OUT; 812 813 if (chap_table->flags & BIT_6) /* peer */ 814 chap_rec->chap_type = CHAP_TYPE_IN; 815 816 chap_rec++; 817 818 valid_chap_entries++; 819 if (valid_chap_entries == *num_entries) 820 break; 821 else 822 continue; 823 } 824 mutex_unlock(&ha->chap_sem); 825 826 exit_get_chap_list: 827 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 828 __func__, valid_chap_entries); 829 *num_entries = valid_chap_entries; 830 return ret; 831 } 832 833 static int __qla4xxx_is_chap_active(struct device *dev, void *data) 834 { 835 int ret = 0; 836 uint16_t *chap_tbl_idx = (uint16_t *) data; 837 struct iscsi_cls_session *cls_session; 838 struct iscsi_session *sess; 839 struct ddb_entry *ddb_entry; 840 841 if (!iscsi_is_session_dev(dev)) 842 goto exit_is_chap_active; 843 844 cls_session = iscsi_dev_to_session(dev); 845 sess = cls_session->dd_data; 846 ddb_entry = sess->dd_data; 847 848 if (iscsi_session_chkready(cls_session)) 849 goto exit_is_chap_active; 850 851 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 852 ret = 1; 853 854 exit_is_chap_active: 855 return ret; 856 } 857 858 static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 859 uint16_t chap_tbl_idx) 860 { 861 int ret = 0; 862 863 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 864 __qla4xxx_is_chap_active); 865 866 return ret; 867 } 868 869 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 870 { 871 struct scsi_qla_host *ha = to_qla_host(shost); 872 struct ql4_chap_table *chap_table; 873 dma_addr_t chap_dma; 874 int max_chap_entries = 0; 875 uint32_t offset = 0; 876 uint32_t chap_size; 877 int ret = 0; 878 879 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 880 if (chap_table == NULL) 881 return -ENOMEM; 882 883 if (is_qla80XX(ha)) 884 max_chap_entries = (ha->hw.flt_chap_size / 2) / 885 sizeof(struct ql4_chap_table); 886 else 887 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 888 889 if (chap_tbl_idx > max_chap_entries) { 890 ret = -EINVAL; 891 goto exit_delete_chap; 892 } 893 894 /* Check if chap index is in use. 895 * If chap is in use don't delet chap entry */ 896 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 897 if (ret) { 898 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 899 "delete from flash\n", chap_tbl_idx); 900 ret = -EBUSY; 901 goto exit_delete_chap; 902 } 903 904 chap_size = sizeof(struct ql4_chap_table); 905 if (is_qla40XX(ha)) 906 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 907 else { 908 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 909 /* flt_chap_size is CHAP table size for both ports 910 * so divide it by 2 to calculate the offset for second port 911 */ 912 if (ha->port_num == 1) 913 offset += (ha->hw.flt_chap_size / 2); 914 offset += (chap_tbl_idx * chap_size); 915 } 916 917 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 918 if (ret != QLA_SUCCESS) { 919 ret = -EINVAL; 920 goto exit_delete_chap; 921 } 922 923 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 924 __le16_to_cpu(chap_table->cookie))); 925 926 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 927 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 928 goto exit_delete_chap; 929 } 930 931 chap_table->cookie = __constant_cpu_to_le16(0xFFFF); 932 933 offset = FLASH_CHAP_OFFSET | 934 (chap_tbl_idx * sizeof(struct ql4_chap_table)); 935 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 936 FLASH_OPT_RMW_COMMIT); 937 if (ret == QLA_SUCCESS && ha->chap_list) { 938 mutex_lock(&ha->chap_sem); 939 /* Update ha chap_list cache */ 940 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 941 chap_table, sizeof(struct ql4_chap_table)); 942 mutex_unlock(&ha->chap_sem); 943 } 944 if (ret != QLA_SUCCESS) 945 ret = -EINVAL; 946 947 exit_delete_chap: 948 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 949 return ret; 950 } 951 952 /** 953 * qla4xxx_set_chap_entry - Make chap entry with given information 954 * @shost: pointer to host 955 * @data: chap info - credentials, index and type to make chap entry 956 * @len: length of data 957 * 958 * Add or update chap entry with the given information 959 **/ 960 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len) 961 { 962 struct scsi_qla_host *ha = to_qla_host(shost); 963 struct iscsi_chap_rec chap_rec; 964 struct ql4_chap_table *chap_entry = NULL; 965 struct iscsi_param_info *param_info; 966 struct nlattr *attr; 967 int max_chap_entries = 0; 968 int type; 969 int rem = len; 970 int rc = 0; 971 int size; 972 973 memset(&chap_rec, 0, sizeof(chap_rec)); 974 975 nla_for_each_attr(attr, data, len, rem) { 976 param_info = nla_data(attr); 977 978 switch (param_info->param) { 979 case ISCSI_CHAP_PARAM_INDEX: 980 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value; 981 break; 982 case ISCSI_CHAP_PARAM_CHAP_TYPE: 983 chap_rec.chap_type = param_info->value[0]; 984 break; 985 case ISCSI_CHAP_PARAM_USERNAME: 986 size = min_t(size_t, sizeof(chap_rec.username), 987 param_info->len); 988 memcpy(chap_rec.username, param_info->value, size); 989 break; 990 case ISCSI_CHAP_PARAM_PASSWORD: 991 size = min_t(size_t, sizeof(chap_rec.password), 992 param_info->len); 993 memcpy(chap_rec.password, param_info->value, size); 994 break; 995 case ISCSI_CHAP_PARAM_PASSWORD_LEN: 996 chap_rec.password_length = param_info->value[0]; 997 break; 998 default: 999 ql4_printk(KERN_ERR, ha, 1000 "%s: No such sysfs attribute\n", __func__); 1001 rc = -ENOSYS; 1002 goto exit_set_chap; 1003 } 1004 } 1005 1006 if (chap_rec.chap_type == CHAP_TYPE_IN) 1007 type = BIDI_CHAP; 1008 else 1009 type = LOCAL_CHAP; 1010 1011 if (is_qla80XX(ha)) 1012 max_chap_entries = (ha->hw.flt_chap_size / 2) / 1013 sizeof(struct ql4_chap_table); 1014 else 1015 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 1016 1017 mutex_lock(&ha->chap_sem); 1018 if (chap_rec.chap_tbl_idx < max_chap_entries) { 1019 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx, 1020 &chap_entry); 1021 if (!rc) { 1022 if (!(type == qla4xxx_get_chap_type(chap_entry))) { 1023 ql4_printk(KERN_INFO, ha, 1024 "Type mismatch for CHAP entry %d\n", 1025 chap_rec.chap_tbl_idx); 1026 rc = -EINVAL; 1027 goto exit_unlock_chap; 1028 } 1029 1030 /* If chap index is in use then don't modify it */ 1031 rc = qla4xxx_is_chap_active(shost, 1032 chap_rec.chap_tbl_idx); 1033 if (rc) { 1034 ql4_printk(KERN_INFO, ha, 1035 "CHAP entry %d is in use\n", 1036 chap_rec.chap_tbl_idx); 1037 rc = -EBUSY; 1038 goto exit_unlock_chap; 1039 } 1040 } 1041 } else { 1042 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx); 1043 if (rc) { 1044 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n"); 1045 rc = -EBUSY; 1046 goto exit_unlock_chap; 1047 } 1048 } 1049 1050 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password, 1051 chap_rec.chap_tbl_idx, type); 1052 1053 exit_unlock_chap: 1054 mutex_unlock(&ha->chap_sem); 1055 1056 exit_set_chap: 1057 return rc; 1058 } 1059 1060 1061 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len) 1062 { 1063 struct scsi_qla_host *ha = to_qla_host(shost); 1064 struct iscsi_offload_host_stats *host_stats = NULL; 1065 int host_stats_size; 1066 int ret = 0; 1067 int ddb_idx = 0; 1068 struct ql_iscsi_stats *ql_iscsi_stats = NULL; 1069 int stats_size; 1070 dma_addr_t iscsi_stats_dma; 1071 1072 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__)); 1073 1074 host_stats_size = sizeof(struct iscsi_offload_host_stats); 1075 1076 if (host_stats_size != len) { 1077 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n", 1078 __func__, len, host_stats_size); 1079 ret = -EINVAL; 1080 goto exit_host_stats; 1081 } 1082 host_stats = (struct iscsi_offload_host_stats *)buf; 1083 1084 if (!buf) { 1085 ret = -ENOMEM; 1086 goto exit_host_stats; 1087 } 1088 1089 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1090 1091 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1092 &iscsi_stats_dma, GFP_KERNEL); 1093 if (!ql_iscsi_stats) { 1094 ql4_printk(KERN_ERR, ha, 1095 "Unable to allocate memory for iscsi stats\n"); 1096 ret = -ENOMEM; 1097 goto exit_host_stats; 1098 } 1099 1100 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size, 1101 iscsi_stats_dma); 1102 if (ret != QLA_SUCCESS) { 1103 ql4_printk(KERN_ERR, ha, 1104 "Unable to retrieve iscsi stats\n"); 1105 ret = -EIO; 1106 goto exit_host_stats; 1107 } 1108 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames); 1109 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes); 1110 host_stats->mactx_multicast_frames = 1111 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames); 1112 host_stats->mactx_broadcast_frames = 1113 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames); 1114 host_stats->mactx_pause_frames = 1115 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames); 1116 host_stats->mactx_control_frames = 1117 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames); 1118 host_stats->mactx_deferral = 1119 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral); 1120 host_stats->mactx_excess_deferral = 1121 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral); 1122 host_stats->mactx_late_collision = 1123 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision); 1124 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort); 1125 host_stats->mactx_single_collision = 1126 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision); 1127 host_stats->mactx_multiple_collision = 1128 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision); 1129 host_stats->mactx_collision = 1130 le64_to_cpu(ql_iscsi_stats->mac_tx_collision); 1131 host_stats->mactx_frames_dropped = 1132 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped); 1133 host_stats->mactx_jumbo_frames = 1134 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames); 1135 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames); 1136 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes); 1137 host_stats->macrx_unknown_control_frames = 1138 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames); 1139 host_stats->macrx_pause_frames = 1140 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames); 1141 host_stats->macrx_control_frames = 1142 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames); 1143 host_stats->macrx_dribble = 1144 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble); 1145 host_stats->macrx_frame_length_error = 1146 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error); 1147 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber); 1148 host_stats->macrx_carrier_sense_error = 1149 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error); 1150 host_stats->macrx_frame_discarded = 1151 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded); 1152 host_stats->macrx_frames_dropped = 1153 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped); 1154 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error); 1155 host_stats->mac_encoding_error = 1156 le64_to_cpu(ql_iscsi_stats->mac_encoding_error); 1157 host_stats->macrx_length_error_large = 1158 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large); 1159 host_stats->macrx_length_error_small = 1160 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small); 1161 host_stats->macrx_multicast_frames = 1162 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames); 1163 host_stats->macrx_broadcast_frames = 1164 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames); 1165 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets); 1166 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes); 1167 host_stats->iptx_fragments = 1168 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments); 1169 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets); 1170 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes); 1171 host_stats->iprx_fragments = 1172 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments); 1173 host_stats->ip_datagram_reassembly = 1174 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly); 1175 host_stats->ip_invalid_address_error = 1176 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error); 1177 host_stats->ip_error_packets = 1178 le64_to_cpu(ql_iscsi_stats->ip_error_packets); 1179 host_stats->ip_fragrx_overlap = 1180 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap); 1181 host_stats->ip_fragrx_outoforder = 1182 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder); 1183 host_stats->ip_datagram_reassembly_timeout = 1184 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout); 1185 host_stats->ipv6tx_packets = 1186 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets); 1187 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes); 1188 host_stats->ipv6tx_fragments = 1189 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments); 1190 host_stats->ipv6rx_packets = 1191 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets); 1192 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes); 1193 host_stats->ipv6rx_fragments = 1194 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments); 1195 host_stats->ipv6_datagram_reassembly = 1196 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly); 1197 host_stats->ipv6_invalid_address_error = 1198 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error); 1199 host_stats->ipv6_error_packets = 1200 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets); 1201 host_stats->ipv6_fragrx_overlap = 1202 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap); 1203 host_stats->ipv6_fragrx_outoforder = 1204 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder); 1205 host_stats->ipv6_datagram_reassembly_timeout = 1206 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout); 1207 host_stats->tcptx_segments = 1208 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments); 1209 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes); 1210 host_stats->tcprx_segments = 1211 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments); 1212 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte); 1213 host_stats->tcp_duplicate_ack_retx = 1214 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx); 1215 host_stats->tcp_retx_timer_expired = 1216 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired); 1217 host_stats->tcprx_duplicate_ack = 1218 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack); 1219 host_stats->tcprx_pure_ackr = 1220 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr); 1221 host_stats->tcptx_delayed_ack = 1222 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack); 1223 host_stats->tcptx_pure_ack = 1224 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack); 1225 host_stats->tcprx_segment_error = 1226 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error); 1227 host_stats->tcprx_segment_outoforder = 1228 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder); 1229 host_stats->tcprx_window_probe = 1230 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe); 1231 host_stats->tcprx_window_update = 1232 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update); 1233 host_stats->tcptx_window_probe_persist = 1234 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist); 1235 host_stats->ecc_error_correction = 1236 le64_to_cpu(ql_iscsi_stats->ecc_error_correction); 1237 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx); 1238 host_stats->iscsi_data_bytes_tx = 1239 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx); 1240 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx); 1241 host_stats->iscsi_data_bytes_rx = 1242 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx); 1243 host_stats->iscsi_io_completed = 1244 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed); 1245 host_stats->iscsi_unexpected_io_rx = 1246 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx); 1247 host_stats->iscsi_format_error = 1248 le64_to_cpu(ql_iscsi_stats->iscsi_format_error); 1249 host_stats->iscsi_hdr_digest_error = 1250 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error); 1251 host_stats->iscsi_data_digest_error = 1252 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error); 1253 host_stats->iscsi_sequence_error = 1254 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error); 1255 exit_host_stats: 1256 if (ql_iscsi_stats) 1257 dma_free_coherent(&ha->pdev->dev, stats_size, 1258 ql_iscsi_stats, iscsi_stats_dma); 1259 1260 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n", 1261 __func__); 1262 return ret; 1263 } 1264 1265 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 1266 enum iscsi_param_type param_type, 1267 int param, char *buf) 1268 { 1269 struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 1270 struct scsi_qla_host *ha = to_qla_host(shost); 1271 int ival; 1272 char *pval = NULL; 1273 int len = -ENOSYS; 1274 1275 if (param_type == ISCSI_NET_PARAM) { 1276 switch (param) { 1277 case ISCSI_NET_PARAM_IPV4_ADDR: 1278 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1279 break; 1280 case ISCSI_NET_PARAM_IPV4_SUBNET: 1281 len = sprintf(buf, "%pI4\n", 1282 &ha->ip_config.subnet_mask); 1283 break; 1284 case ISCSI_NET_PARAM_IPV4_GW: 1285 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 1286 break; 1287 case ISCSI_NET_PARAM_IFACE_ENABLE: 1288 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1289 OP_STATE(ha->ip_config.ipv4_options, 1290 IPOPT_IPV4_PROTOCOL_ENABLE, pval); 1291 } else { 1292 OP_STATE(ha->ip_config.ipv6_options, 1293 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval); 1294 } 1295 1296 len = sprintf(buf, "%s\n", pval); 1297 break; 1298 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1299 len = sprintf(buf, "%s\n", 1300 (ha->ip_config.tcp_options & 1301 TCPOPT_DHCP_ENABLE) ? 1302 "dhcp" : "static"); 1303 break; 1304 case ISCSI_NET_PARAM_IPV6_ADDR: 1305 if (iface->iface_num == 0) 1306 len = sprintf(buf, "%pI6\n", 1307 &ha->ip_config.ipv6_addr0); 1308 if (iface->iface_num == 1) 1309 len = sprintf(buf, "%pI6\n", 1310 &ha->ip_config.ipv6_addr1); 1311 break; 1312 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1313 len = sprintf(buf, "%pI6\n", 1314 &ha->ip_config.ipv6_link_local_addr); 1315 break; 1316 case ISCSI_NET_PARAM_IPV6_ROUTER: 1317 len = sprintf(buf, "%pI6\n", 1318 &ha->ip_config.ipv6_default_router_addr); 1319 break; 1320 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1321 pval = (ha->ip_config.ipv6_addl_options & 1322 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 1323 "nd" : "static"; 1324 1325 len = sprintf(buf, "%s\n", pval); 1326 break; 1327 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1328 pval = (ha->ip_config.ipv6_addl_options & 1329 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 1330 "auto" : "static"; 1331 1332 len = sprintf(buf, "%s\n", pval); 1333 break; 1334 case ISCSI_NET_PARAM_VLAN_ID: 1335 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1336 ival = ha->ip_config.ipv4_vlan_tag & 1337 ISCSI_MAX_VLAN_ID; 1338 else 1339 ival = ha->ip_config.ipv6_vlan_tag & 1340 ISCSI_MAX_VLAN_ID; 1341 1342 len = sprintf(buf, "%d\n", ival); 1343 break; 1344 case ISCSI_NET_PARAM_VLAN_PRIORITY: 1345 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1346 ival = (ha->ip_config.ipv4_vlan_tag >> 13) & 1347 ISCSI_MAX_VLAN_PRIORITY; 1348 else 1349 ival = (ha->ip_config.ipv6_vlan_tag >> 13) & 1350 ISCSI_MAX_VLAN_PRIORITY; 1351 1352 len = sprintf(buf, "%d\n", ival); 1353 break; 1354 case ISCSI_NET_PARAM_VLAN_ENABLED: 1355 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1356 OP_STATE(ha->ip_config.ipv4_options, 1357 IPOPT_VLAN_TAGGING_ENABLE, pval); 1358 } else { 1359 OP_STATE(ha->ip_config.ipv6_options, 1360 IPV6_OPT_VLAN_TAGGING_ENABLE, pval); 1361 } 1362 len = sprintf(buf, "%s\n", pval); 1363 break; 1364 case ISCSI_NET_PARAM_MTU: 1365 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 1366 break; 1367 case ISCSI_NET_PARAM_PORT: 1368 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1369 len = sprintf(buf, "%d\n", 1370 ha->ip_config.ipv4_port); 1371 else 1372 len = sprintf(buf, "%d\n", 1373 ha->ip_config.ipv6_port); 1374 break; 1375 case ISCSI_NET_PARAM_IPADDR_STATE: 1376 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1377 pval = iscsi_get_ipaddress_state_name( 1378 ha->ip_config.ipv4_addr_state); 1379 } else { 1380 if (iface->iface_num == 0) 1381 pval = iscsi_get_ipaddress_state_name( 1382 ha->ip_config.ipv6_addr0_state); 1383 else if (iface->iface_num == 1) 1384 pval = iscsi_get_ipaddress_state_name( 1385 ha->ip_config.ipv6_addr1_state); 1386 } 1387 1388 len = sprintf(buf, "%s\n", pval); 1389 break; 1390 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 1391 pval = iscsi_get_ipaddress_state_name( 1392 ha->ip_config.ipv6_link_local_state); 1393 len = sprintf(buf, "%s\n", pval); 1394 break; 1395 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 1396 pval = iscsi_get_router_state_name( 1397 ha->ip_config.ipv6_default_router_state); 1398 len = sprintf(buf, "%s\n", pval); 1399 break; 1400 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 1401 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1402 OP_STATE(~ha->ip_config.tcp_options, 1403 TCPOPT_DELAYED_ACK_DISABLE, pval); 1404 } else { 1405 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1406 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval); 1407 } 1408 len = sprintf(buf, "%s\n", pval); 1409 break; 1410 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 1411 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1412 OP_STATE(~ha->ip_config.tcp_options, 1413 TCPOPT_NAGLE_ALGO_DISABLE, pval); 1414 } else { 1415 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1416 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval); 1417 } 1418 len = sprintf(buf, "%s\n", pval); 1419 break; 1420 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 1421 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1422 OP_STATE(~ha->ip_config.tcp_options, 1423 TCPOPT_WINDOW_SCALE_DISABLE, pval); 1424 } else { 1425 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1426 IPV6_TCPOPT_WINDOW_SCALE_DISABLE, 1427 pval); 1428 } 1429 len = sprintf(buf, "%s\n", pval); 1430 break; 1431 case ISCSI_NET_PARAM_TCP_WSF: 1432 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1433 len = sprintf(buf, "%d\n", 1434 ha->ip_config.tcp_wsf); 1435 else 1436 len = sprintf(buf, "%d\n", 1437 ha->ip_config.ipv6_tcp_wsf); 1438 break; 1439 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 1440 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1441 ival = (ha->ip_config.tcp_options & 1442 TCPOPT_TIMER_SCALE) >> 1; 1443 else 1444 ival = (ha->ip_config.ipv6_tcp_options & 1445 IPV6_TCPOPT_TIMER_SCALE) >> 1; 1446 1447 len = sprintf(buf, "%d\n", ival); 1448 break; 1449 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 1450 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1451 OP_STATE(ha->ip_config.tcp_options, 1452 TCPOPT_TIMESTAMP_ENABLE, pval); 1453 } else { 1454 OP_STATE(ha->ip_config.ipv6_tcp_options, 1455 IPV6_TCPOPT_TIMESTAMP_EN, pval); 1456 } 1457 len = sprintf(buf, "%s\n", pval); 1458 break; 1459 case ISCSI_NET_PARAM_CACHE_ID: 1460 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1461 len = sprintf(buf, "%d\n", 1462 ha->ip_config.ipv4_cache_id); 1463 else 1464 len = sprintf(buf, "%d\n", 1465 ha->ip_config.ipv6_cache_id); 1466 break; 1467 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 1468 OP_STATE(ha->ip_config.tcp_options, 1469 TCPOPT_DNS_SERVER_IP_EN, pval); 1470 1471 len = sprintf(buf, "%s\n", pval); 1472 break; 1473 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 1474 OP_STATE(ha->ip_config.tcp_options, 1475 TCPOPT_SLP_DA_INFO_EN, pval); 1476 1477 len = sprintf(buf, "%s\n", pval); 1478 break; 1479 case ISCSI_NET_PARAM_IPV4_TOS_EN: 1480 OP_STATE(ha->ip_config.ipv4_options, 1481 IPOPT_IPV4_TOS_EN, pval); 1482 1483 len = sprintf(buf, "%s\n", pval); 1484 break; 1485 case ISCSI_NET_PARAM_IPV4_TOS: 1486 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos); 1487 break; 1488 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 1489 OP_STATE(ha->ip_config.ipv4_options, 1490 IPOPT_GRAT_ARP_EN, pval); 1491 1492 len = sprintf(buf, "%s\n", pval); 1493 break; 1494 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 1495 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN, 1496 pval); 1497 1498 len = sprintf(buf, "%s\n", pval); 1499 break; 1500 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 1501 pval = (ha->ip_config.ipv4_alt_cid_len) ? 1502 (char *)ha->ip_config.ipv4_alt_cid : ""; 1503 1504 len = sprintf(buf, "%s\n", pval); 1505 break; 1506 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 1507 OP_STATE(ha->ip_config.ipv4_options, 1508 IPOPT_REQ_VID_EN, pval); 1509 1510 len = sprintf(buf, "%s\n", pval); 1511 break; 1512 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 1513 OP_STATE(ha->ip_config.ipv4_options, 1514 IPOPT_USE_VID_EN, pval); 1515 1516 len = sprintf(buf, "%s\n", pval); 1517 break; 1518 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 1519 pval = (ha->ip_config.ipv4_vid_len) ? 1520 (char *)ha->ip_config.ipv4_vid : ""; 1521 1522 len = sprintf(buf, "%s\n", pval); 1523 break; 1524 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 1525 OP_STATE(ha->ip_config.ipv4_options, 1526 IPOPT_LEARN_IQN_EN, pval); 1527 1528 len = sprintf(buf, "%s\n", pval); 1529 break; 1530 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 1531 OP_STATE(~ha->ip_config.ipv4_options, 1532 IPOPT_FRAGMENTATION_DISABLE, pval); 1533 1534 len = sprintf(buf, "%s\n", pval); 1535 break; 1536 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 1537 OP_STATE(ha->ip_config.ipv4_options, 1538 IPOPT_IN_FORWARD_EN, pval); 1539 1540 len = sprintf(buf, "%s\n", pval); 1541 break; 1542 case ISCSI_NET_PARAM_REDIRECT_EN: 1543 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1544 OP_STATE(ha->ip_config.ipv4_options, 1545 IPOPT_ARP_REDIRECT_EN, pval); 1546 } else { 1547 OP_STATE(ha->ip_config.ipv6_options, 1548 IPV6_OPT_REDIRECT_EN, pval); 1549 } 1550 len = sprintf(buf, "%s\n", pval); 1551 break; 1552 case ISCSI_NET_PARAM_IPV4_TTL: 1553 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl); 1554 break; 1555 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 1556 OP_STATE(ha->ip_config.ipv6_options, 1557 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval); 1558 1559 len = sprintf(buf, "%s\n", pval); 1560 break; 1561 case ISCSI_NET_PARAM_IPV6_MLD_EN: 1562 OP_STATE(ha->ip_config.ipv6_addl_options, 1563 IPV6_ADDOPT_MLD_EN, pval); 1564 1565 len = sprintf(buf, "%s\n", pval); 1566 break; 1567 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 1568 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl); 1569 break; 1570 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 1571 len = sprintf(buf, "%d\n", 1572 ha->ip_config.ipv6_traffic_class); 1573 break; 1574 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 1575 len = sprintf(buf, "%d\n", 1576 ha->ip_config.ipv6_hop_limit); 1577 break; 1578 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 1579 len = sprintf(buf, "%d\n", 1580 ha->ip_config.ipv6_nd_reach_time); 1581 break; 1582 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 1583 len = sprintf(buf, "%d\n", 1584 ha->ip_config.ipv6_nd_rexmit_timer); 1585 break; 1586 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 1587 len = sprintf(buf, "%d\n", 1588 ha->ip_config.ipv6_nd_stale_timeout); 1589 break; 1590 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 1591 len = sprintf(buf, "%d\n", 1592 ha->ip_config.ipv6_dup_addr_detect_count); 1593 break; 1594 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 1595 len = sprintf(buf, "%d\n", 1596 ha->ip_config.ipv6_gw_advrt_mtu); 1597 break; 1598 default: 1599 len = -ENOSYS; 1600 } 1601 } else if (param_type == ISCSI_IFACE_PARAM) { 1602 switch (param) { 1603 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 1604 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout); 1605 break; 1606 case ISCSI_IFACE_PARAM_HDRDGST_EN: 1607 OP_STATE(ha->ip_config.iscsi_options, 1608 ISCSIOPTS_HEADER_DIGEST_EN, pval); 1609 1610 len = sprintf(buf, "%s\n", pval); 1611 break; 1612 case ISCSI_IFACE_PARAM_DATADGST_EN: 1613 OP_STATE(ha->ip_config.iscsi_options, 1614 ISCSIOPTS_DATA_DIGEST_EN, pval); 1615 1616 len = sprintf(buf, "%s\n", pval); 1617 break; 1618 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 1619 OP_STATE(ha->ip_config.iscsi_options, 1620 ISCSIOPTS_IMMEDIATE_DATA_EN, pval); 1621 1622 len = sprintf(buf, "%s\n", pval); 1623 break; 1624 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 1625 OP_STATE(ha->ip_config.iscsi_options, 1626 ISCSIOPTS_INITIAL_R2T_EN, pval); 1627 1628 len = sprintf(buf, "%s\n", pval); 1629 break; 1630 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 1631 OP_STATE(ha->ip_config.iscsi_options, 1632 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval); 1633 1634 len = sprintf(buf, "%s\n", pval); 1635 break; 1636 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 1637 OP_STATE(ha->ip_config.iscsi_options, 1638 ISCSIOPTS_DATA_PDU_INORDER_EN, pval); 1639 1640 len = sprintf(buf, "%s\n", pval); 1641 break; 1642 case ISCSI_IFACE_PARAM_ERL: 1643 len = sprintf(buf, "%d\n", 1644 (ha->ip_config.iscsi_options & 1645 ISCSIOPTS_ERL)); 1646 break; 1647 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 1648 len = sprintf(buf, "%u\n", 1649 ha->ip_config.iscsi_max_pdu_size * 1650 BYTE_UNITS); 1651 break; 1652 case ISCSI_IFACE_PARAM_FIRST_BURST: 1653 len = sprintf(buf, "%u\n", 1654 ha->ip_config.iscsi_first_burst_len * 1655 BYTE_UNITS); 1656 break; 1657 case ISCSI_IFACE_PARAM_MAX_R2T: 1658 len = sprintf(buf, "%d\n", 1659 ha->ip_config.iscsi_max_outstnd_r2t); 1660 break; 1661 case ISCSI_IFACE_PARAM_MAX_BURST: 1662 len = sprintf(buf, "%u\n", 1663 ha->ip_config.iscsi_max_burst_len * 1664 BYTE_UNITS); 1665 break; 1666 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 1667 OP_STATE(ha->ip_config.iscsi_options, 1668 ISCSIOPTS_CHAP_AUTH_EN, pval); 1669 1670 len = sprintf(buf, "%s\n", pval); 1671 break; 1672 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 1673 OP_STATE(ha->ip_config.iscsi_options, 1674 ISCSIOPTS_BIDI_CHAP_EN, pval); 1675 1676 len = sprintf(buf, "%s\n", pval); 1677 break; 1678 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 1679 OP_STATE(ha->ip_config.iscsi_options, 1680 ISCSIOPTS_DISCOVERY_AUTH_EN, pval); 1681 1682 len = sprintf(buf, "%s\n", pval); 1683 break; 1684 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 1685 OP_STATE(ha->ip_config.iscsi_options, 1686 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval); 1687 1688 len = sprintf(buf, "%s\n", pval); 1689 break; 1690 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 1691 OP_STATE(ha->ip_config.iscsi_options, 1692 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval); 1693 1694 len = sprintf(buf, "%s\n", pval); 1695 break; 1696 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 1697 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name); 1698 break; 1699 default: 1700 len = -ENOSYS; 1701 } 1702 } 1703 1704 return len; 1705 } 1706 1707 static struct iscsi_endpoint * 1708 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 1709 int non_blocking) 1710 { 1711 int ret; 1712 struct iscsi_endpoint *ep; 1713 struct qla_endpoint *qla_ep; 1714 struct scsi_qla_host *ha; 1715 struct sockaddr_in *addr; 1716 struct sockaddr_in6 *addr6; 1717 1718 if (!shost) { 1719 ret = -ENXIO; 1720 pr_err("%s: shost is NULL\n", __func__); 1721 return ERR_PTR(ret); 1722 } 1723 1724 ha = iscsi_host_priv(shost); 1725 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 1726 if (!ep) { 1727 ret = -ENOMEM; 1728 return ERR_PTR(ret); 1729 } 1730 1731 qla_ep = ep->dd_data; 1732 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 1733 if (dst_addr->sa_family == AF_INET) { 1734 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 1735 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 1736 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 1737 (char *)&addr->sin_addr)); 1738 } else if (dst_addr->sa_family == AF_INET6) { 1739 memcpy(&qla_ep->dst_addr, dst_addr, 1740 sizeof(struct sockaddr_in6)); 1741 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 1742 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 1743 (char *)&addr6->sin6_addr)); 1744 } else { 1745 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n", 1746 __func__); 1747 } 1748 1749 qla_ep->host = shost; 1750 1751 return ep; 1752 } 1753 1754 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 1755 { 1756 struct qla_endpoint *qla_ep; 1757 struct scsi_qla_host *ha; 1758 int ret = 0; 1759 1760 qla_ep = ep->dd_data; 1761 ha = to_qla_host(qla_ep->host); 1762 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no)); 1763 1764 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 1765 ret = 1; 1766 1767 return ret; 1768 } 1769 1770 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 1771 { 1772 struct qla_endpoint *qla_ep; 1773 struct scsi_qla_host *ha; 1774 1775 qla_ep = ep->dd_data; 1776 ha = to_qla_host(qla_ep->host); 1777 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1778 ha->host_no)); 1779 iscsi_destroy_endpoint(ep); 1780 } 1781 1782 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 1783 enum iscsi_param param, 1784 char *buf) 1785 { 1786 struct qla_endpoint *qla_ep = ep->dd_data; 1787 struct sockaddr *dst_addr; 1788 struct scsi_qla_host *ha; 1789 1790 if (!qla_ep) 1791 return -ENOTCONN; 1792 1793 ha = to_qla_host(qla_ep->host); 1794 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1795 ha->host_no)); 1796 1797 switch (param) { 1798 case ISCSI_PARAM_CONN_PORT: 1799 case ISCSI_PARAM_CONN_ADDRESS: 1800 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1801 if (!dst_addr) 1802 return -ENOTCONN; 1803 1804 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1805 &qla_ep->dst_addr, param, buf); 1806 default: 1807 return -ENOSYS; 1808 } 1809 } 1810 1811 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 1812 struct iscsi_stats *stats) 1813 { 1814 struct iscsi_session *sess; 1815 struct iscsi_cls_session *cls_sess; 1816 struct ddb_entry *ddb_entry; 1817 struct scsi_qla_host *ha; 1818 struct ql_iscsi_stats *ql_iscsi_stats; 1819 int stats_size; 1820 int ret; 1821 dma_addr_t iscsi_stats_dma; 1822 1823 cls_sess = iscsi_conn_to_session(cls_conn); 1824 sess = cls_sess->dd_data; 1825 ddb_entry = sess->dd_data; 1826 ha = ddb_entry->ha; 1827 1828 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1829 ha->host_no)); 1830 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1831 /* Allocate memory */ 1832 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1833 &iscsi_stats_dma, GFP_KERNEL); 1834 if (!ql_iscsi_stats) { 1835 ql4_printk(KERN_ERR, ha, 1836 "Unable to allocate memory for iscsi stats\n"); 1837 goto exit_get_stats; 1838 } 1839 1840 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 1841 iscsi_stats_dma); 1842 if (ret != QLA_SUCCESS) { 1843 ql4_printk(KERN_ERR, ha, 1844 "Unable to retrieve iscsi stats\n"); 1845 goto free_stats; 1846 } 1847 1848 /* octets */ 1849 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 1850 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 1851 /* xmit pdus */ 1852 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 1853 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 1854 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 1855 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 1856 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 1857 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 1858 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 1859 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 1860 /* recv pdus */ 1861 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 1862 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 1863 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 1864 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 1865 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 1866 stats->logoutrsp_pdus = 1867 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 1868 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 1869 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 1870 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 1871 1872 free_stats: 1873 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 1874 iscsi_stats_dma); 1875 exit_get_stats: 1876 return; 1877 } 1878 1879 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 1880 { 1881 struct iscsi_cls_session *session; 1882 unsigned long flags; 1883 enum blk_eh_timer_return ret = BLK_EH_DONE; 1884 1885 session = starget_to_session(scsi_target(sc->device)); 1886 1887 spin_lock_irqsave(&session->lock, flags); 1888 if (session->state == ISCSI_SESSION_FAILED) 1889 ret = BLK_EH_RESET_TIMER; 1890 spin_unlock_irqrestore(&session->lock, flags); 1891 1892 return ret; 1893 } 1894 1895 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 1896 { 1897 struct scsi_qla_host *ha = to_qla_host(shost); 1898 struct iscsi_cls_host *ihost = shost->shost_data; 1899 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 1900 1901 qla4xxx_get_firmware_state(ha); 1902 1903 switch (ha->addl_fw_state & 0x0F00) { 1904 case FW_ADDSTATE_LINK_SPEED_10MBPS: 1905 speed = ISCSI_PORT_SPEED_10MBPS; 1906 break; 1907 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1908 speed = ISCSI_PORT_SPEED_100MBPS; 1909 break; 1910 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1911 speed = ISCSI_PORT_SPEED_1GBPS; 1912 break; 1913 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1914 speed = ISCSI_PORT_SPEED_10GBPS; 1915 break; 1916 } 1917 ihost->port_speed = speed; 1918 } 1919 1920 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1921 { 1922 struct scsi_qla_host *ha = to_qla_host(shost); 1923 struct iscsi_cls_host *ihost = shost->shost_data; 1924 uint32_t state = ISCSI_PORT_STATE_DOWN; 1925 1926 if (test_bit(AF_LINK_UP, &ha->flags)) 1927 state = ISCSI_PORT_STATE_UP; 1928 1929 ihost->port_state = state; 1930 } 1931 1932 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1933 enum iscsi_host_param param, char *buf) 1934 { 1935 struct scsi_qla_host *ha = to_qla_host(shost); 1936 int len; 1937 1938 switch (param) { 1939 case ISCSI_HOST_PARAM_HWADDRESS: 1940 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1941 break; 1942 case ISCSI_HOST_PARAM_IPADDRESS: 1943 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1944 break; 1945 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1946 len = sprintf(buf, "%s\n", ha->name_string); 1947 break; 1948 case ISCSI_HOST_PARAM_PORT_STATE: 1949 qla4xxx_set_port_state(shost); 1950 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1951 break; 1952 case ISCSI_HOST_PARAM_PORT_SPEED: 1953 qla4xxx_set_port_speed(shost); 1954 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1955 break; 1956 default: 1957 return -ENOSYS; 1958 } 1959 1960 return len; 1961 } 1962 1963 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1964 { 1965 if (ha->iface_ipv4) 1966 return; 1967 1968 /* IPv4 */ 1969 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1970 &qla4xxx_iscsi_transport, 1971 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1972 if (!ha->iface_ipv4) 1973 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1974 "iface0.\n"); 1975 } 1976 1977 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1978 { 1979 if (!ha->iface_ipv6_0) 1980 /* IPv6 iface-0 */ 1981 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1982 &qla4xxx_iscsi_transport, 1983 ISCSI_IFACE_TYPE_IPV6, 0, 1984 0); 1985 if (!ha->iface_ipv6_0) 1986 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1987 "iface0.\n"); 1988 1989 if (!ha->iface_ipv6_1) 1990 /* IPv6 iface-1 */ 1991 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1992 &qla4xxx_iscsi_transport, 1993 ISCSI_IFACE_TYPE_IPV6, 1, 1994 0); 1995 if (!ha->iface_ipv6_1) 1996 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1997 "iface1.\n"); 1998 } 1999 2000 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 2001 { 2002 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 2003 qla4xxx_create_ipv4_iface(ha); 2004 2005 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 2006 qla4xxx_create_ipv6_iface(ha); 2007 } 2008 2009 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 2010 { 2011 if (ha->iface_ipv4) { 2012 iscsi_destroy_iface(ha->iface_ipv4); 2013 ha->iface_ipv4 = NULL; 2014 } 2015 } 2016 2017 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 2018 { 2019 if (ha->iface_ipv6_0) { 2020 iscsi_destroy_iface(ha->iface_ipv6_0); 2021 ha->iface_ipv6_0 = NULL; 2022 } 2023 if (ha->iface_ipv6_1) { 2024 iscsi_destroy_iface(ha->iface_ipv6_1); 2025 ha->iface_ipv6_1 = NULL; 2026 } 2027 } 2028 2029 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 2030 { 2031 qla4xxx_destroy_ipv4_iface(ha); 2032 qla4xxx_destroy_ipv6_iface(ha); 2033 } 2034 2035 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 2036 struct iscsi_iface_param_info *iface_param, 2037 struct addr_ctrl_blk *init_fw_cb) 2038 { 2039 /* 2040 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 2041 * iface_num 1 is valid only for IPv6 Addr. 2042 */ 2043 switch (iface_param->param) { 2044 case ISCSI_NET_PARAM_IPV6_ADDR: 2045 if (iface_param->iface_num & 0x1) 2046 /* IPv6 Addr 1 */ 2047 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 2048 sizeof(init_fw_cb->ipv6_addr1)); 2049 else 2050 /* IPv6 Addr 0 */ 2051 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 2052 sizeof(init_fw_cb->ipv6_addr0)); 2053 break; 2054 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 2055 if (iface_param->iface_num & 0x1) 2056 break; 2057 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 2058 sizeof(init_fw_cb->ipv6_if_id)); 2059 break; 2060 case ISCSI_NET_PARAM_IPV6_ROUTER: 2061 if (iface_param->iface_num & 0x1) 2062 break; 2063 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 2064 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2065 break; 2066 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 2067 /* Autocfg applies to even interface */ 2068 if (iface_param->iface_num & 0x1) 2069 break; 2070 2071 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 2072 init_fw_cb->ipv6_addtl_opts &= 2073 cpu_to_le16( 2074 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2075 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 2076 init_fw_cb->ipv6_addtl_opts |= 2077 cpu_to_le16( 2078 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2079 else 2080 ql4_printk(KERN_ERR, ha, 2081 "Invalid autocfg setting for IPv6 addr\n"); 2082 break; 2083 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2084 /* Autocfg applies to even interface */ 2085 if (iface_param->iface_num & 0x1) 2086 break; 2087 2088 if (iface_param->value[0] == 2089 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 2090 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 2091 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2092 else if (iface_param->value[0] == 2093 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 2094 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 2095 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2096 else 2097 ql4_printk(KERN_ERR, ha, 2098 "Invalid autocfg setting for IPv6 linklocal addr\n"); 2099 break; 2100 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 2101 /* Autocfg applies to even interface */ 2102 if (iface_param->iface_num & 0x1) 2103 break; 2104 2105 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 2106 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 2107 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2108 break; 2109 case ISCSI_NET_PARAM_IFACE_ENABLE: 2110 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2111 init_fw_cb->ipv6_opts |= 2112 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 2113 qla4xxx_create_ipv6_iface(ha); 2114 } else { 2115 init_fw_cb->ipv6_opts &= 2116 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 2117 0xFFFF); 2118 qla4xxx_destroy_ipv6_iface(ha); 2119 } 2120 break; 2121 case ISCSI_NET_PARAM_VLAN_TAG: 2122 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 2123 break; 2124 init_fw_cb->ipv6_vlan_tag = 2125 cpu_to_be16(*(uint16_t *)iface_param->value); 2126 break; 2127 case ISCSI_NET_PARAM_VLAN_ENABLED: 2128 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2129 init_fw_cb->ipv6_opts |= 2130 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 2131 else 2132 init_fw_cb->ipv6_opts &= 2133 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 2134 break; 2135 case ISCSI_NET_PARAM_MTU: 2136 init_fw_cb->eth_mtu_size = 2137 cpu_to_le16(*(uint16_t *)iface_param->value); 2138 break; 2139 case ISCSI_NET_PARAM_PORT: 2140 /* Autocfg applies to even interface */ 2141 if (iface_param->iface_num & 0x1) 2142 break; 2143 2144 init_fw_cb->ipv6_port = 2145 cpu_to_le16(*(uint16_t *)iface_param->value); 2146 break; 2147 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2148 if (iface_param->iface_num & 0x1) 2149 break; 2150 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2151 init_fw_cb->ipv6_tcp_opts |= 2152 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2153 else 2154 init_fw_cb->ipv6_tcp_opts &= 2155 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE & 2156 0xFFFF); 2157 break; 2158 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2159 if (iface_param->iface_num & 0x1) 2160 break; 2161 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2162 init_fw_cb->ipv6_tcp_opts |= 2163 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2164 else 2165 init_fw_cb->ipv6_tcp_opts &= 2166 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2167 break; 2168 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2169 if (iface_param->iface_num & 0x1) 2170 break; 2171 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2172 init_fw_cb->ipv6_tcp_opts |= 2173 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2174 else 2175 init_fw_cb->ipv6_tcp_opts &= 2176 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2177 break; 2178 case ISCSI_NET_PARAM_TCP_WSF: 2179 if (iface_param->iface_num & 0x1) 2180 break; 2181 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; 2182 break; 2183 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2184 if (iface_param->iface_num & 0x1) 2185 break; 2186 init_fw_cb->ipv6_tcp_opts &= 2187 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); 2188 init_fw_cb->ipv6_tcp_opts |= 2189 cpu_to_le16((iface_param->value[0] << 1) & 2190 IPV6_TCPOPT_TIMER_SCALE); 2191 break; 2192 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2193 if (iface_param->iface_num & 0x1) 2194 break; 2195 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2196 init_fw_cb->ipv6_tcp_opts |= 2197 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); 2198 else 2199 init_fw_cb->ipv6_tcp_opts &= 2200 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); 2201 break; 2202 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 2203 if (iface_param->iface_num & 0x1) 2204 break; 2205 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2206 init_fw_cb->ipv6_opts |= 2207 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2208 else 2209 init_fw_cb->ipv6_opts &= 2210 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2211 break; 2212 case ISCSI_NET_PARAM_REDIRECT_EN: 2213 if (iface_param->iface_num & 0x1) 2214 break; 2215 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2216 init_fw_cb->ipv6_opts |= 2217 cpu_to_le16(IPV6_OPT_REDIRECT_EN); 2218 else 2219 init_fw_cb->ipv6_opts &= 2220 cpu_to_le16(~IPV6_OPT_REDIRECT_EN); 2221 break; 2222 case ISCSI_NET_PARAM_IPV6_MLD_EN: 2223 if (iface_param->iface_num & 0x1) 2224 break; 2225 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2226 init_fw_cb->ipv6_addtl_opts |= 2227 cpu_to_le16(IPV6_ADDOPT_MLD_EN); 2228 else 2229 init_fw_cb->ipv6_addtl_opts &= 2230 cpu_to_le16(~IPV6_ADDOPT_MLD_EN); 2231 break; 2232 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 2233 if (iface_param->iface_num & 0x1) 2234 break; 2235 init_fw_cb->ipv6_flow_lbl = 2236 cpu_to_le16(*(uint16_t *)iface_param->value); 2237 break; 2238 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 2239 if (iface_param->iface_num & 0x1) 2240 break; 2241 init_fw_cb->ipv6_traffic_class = iface_param->value[0]; 2242 break; 2243 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 2244 if (iface_param->iface_num & 0x1) 2245 break; 2246 init_fw_cb->ipv6_hop_limit = iface_param->value[0]; 2247 break; 2248 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 2249 if (iface_param->iface_num & 0x1) 2250 break; 2251 init_fw_cb->ipv6_nd_reach_time = 2252 cpu_to_le32(*(uint32_t *)iface_param->value); 2253 break; 2254 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 2255 if (iface_param->iface_num & 0x1) 2256 break; 2257 init_fw_cb->ipv6_nd_rexmit_timer = 2258 cpu_to_le32(*(uint32_t *)iface_param->value); 2259 break; 2260 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 2261 if (iface_param->iface_num & 0x1) 2262 break; 2263 init_fw_cb->ipv6_nd_stale_timeout = 2264 cpu_to_le32(*(uint32_t *)iface_param->value); 2265 break; 2266 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 2267 if (iface_param->iface_num & 0x1) 2268 break; 2269 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; 2270 break; 2271 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 2272 if (iface_param->iface_num & 0x1) 2273 break; 2274 init_fw_cb->ipv6_gw_advrt_mtu = 2275 cpu_to_le32(*(uint32_t *)iface_param->value); 2276 break; 2277 default: 2278 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 2279 iface_param->param); 2280 break; 2281 } 2282 } 2283 2284 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 2285 struct iscsi_iface_param_info *iface_param, 2286 struct addr_ctrl_blk *init_fw_cb) 2287 { 2288 switch (iface_param->param) { 2289 case ISCSI_NET_PARAM_IPV4_ADDR: 2290 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 2291 sizeof(init_fw_cb->ipv4_addr)); 2292 break; 2293 case ISCSI_NET_PARAM_IPV4_SUBNET: 2294 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 2295 sizeof(init_fw_cb->ipv4_subnet)); 2296 break; 2297 case ISCSI_NET_PARAM_IPV4_GW: 2298 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 2299 sizeof(init_fw_cb->ipv4_gw_addr)); 2300 break; 2301 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 2302 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 2303 init_fw_cb->ipv4_tcp_opts |= 2304 cpu_to_le16(TCPOPT_DHCP_ENABLE); 2305 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 2306 init_fw_cb->ipv4_tcp_opts &= 2307 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 2308 else 2309 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 2310 break; 2311 case ISCSI_NET_PARAM_IFACE_ENABLE: 2312 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2313 init_fw_cb->ipv4_ip_opts |= 2314 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 2315 qla4xxx_create_ipv4_iface(ha); 2316 } else { 2317 init_fw_cb->ipv4_ip_opts &= 2318 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 2319 0xFFFF); 2320 qla4xxx_destroy_ipv4_iface(ha); 2321 } 2322 break; 2323 case ISCSI_NET_PARAM_VLAN_TAG: 2324 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 2325 break; 2326 init_fw_cb->ipv4_vlan_tag = 2327 cpu_to_be16(*(uint16_t *)iface_param->value); 2328 break; 2329 case ISCSI_NET_PARAM_VLAN_ENABLED: 2330 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2331 init_fw_cb->ipv4_ip_opts |= 2332 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 2333 else 2334 init_fw_cb->ipv4_ip_opts &= 2335 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 2336 break; 2337 case ISCSI_NET_PARAM_MTU: 2338 init_fw_cb->eth_mtu_size = 2339 cpu_to_le16(*(uint16_t *)iface_param->value); 2340 break; 2341 case ISCSI_NET_PARAM_PORT: 2342 init_fw_cb->ipv4_port = 2343 cpu_to_le16(*(uint16_t *)iface_param->value); 2344 break; 2345 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2346 if (iface_param->iface_num & 0x1) 2347 break; 2348 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2349 init_fw_cb->ipv4_tcp_opts |= 2350 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); 2351 else 2352 init_fw_cb->ipv4_tcp_opts &= 2353 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE & 2354 0xFFFF); 2355 break; 2356 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2357 if (iface_param->iface_num & 0x1) 2358 break; 2359 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2360 init_fw_cb->ipv4_tcp_opts |= 2361 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE); 2362 else 2363 init_fw_cb->ipv4_tcp_opts &= 2364 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); 2365 break; 2366 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2367 if (iface_param->iface_num & 0x1) 2368 break; 2369 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2370 init_fw_cb->ipv4_tcp_opts |= 2371 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); 2372 else 2373 init_fw_cb->ipv4_tcp_opts &= 2374 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); 2375 break; 2376 case ISCSI_NET_PARAM_TCP_WSF: 2377 if (iface_param->iface_num & 0x1) 2378 break; 2379 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; 2380 break; 2381 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2382 if (iface_param->iface_num & 0x1) 2383 break; 2384 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); 2385 init_fw_cb->ipv4_tcp_opts |= 2386 cpu_to_le16((iface_param->value[0] << 1) & 2387 TCPOPT_TIMER_SCALE); 2388 break; 2389 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2390 if (iface_param->iface_num & 0x1) 2391 break; 2392 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2393 init_fw_cb->ipv4_tcp_opts |= 2394 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); 2395 else 2396 init_fw_cb->ipv4_tcp_opts &= 2397 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); 2398 break; 2399 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 2400 if (iface_param->iface_num & 0x1) 2401 break; 2402 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2403 init_fw_cb->ipv4_tcp_opts |= 2404 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); 2405 else 2406 init_fw_cb->ipv4_tcp_opts &= 2407 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); 2408 break; 2409 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 2410 if (iface_param->iface_num & 0x1) 2411 break; 2412 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2413 init_fw_cb->ipv4_tcp_opts |= 2414 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); 2415 else 2416 init_fw_cb->ipv4_tcp_opts &= 2417 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); 2418 break; 2419 case ISCSI_NET_PARAM_IPV4_TOS_EN: 2420 if (iface_param->iface_num & 0x1) 2421 break; 2422 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2423 init_fw_cb->ipv4_ip_opts |= 2424 cpu_to_le16(IPOPT_IPV4_TOS_EN); 2425 else 2426 init_fw_cb->ipv4_ip_opts &= 2427 cpu_to_le16(~IPOPT_IPV4_TOS_EN); 2428 break; 2429 case ISCSI_NET_PARAM_IPV4_TOS: 2430 if (iface_param->iface_num & 0x1) 2431 break; 2432 init_fw_cb->ipv4_tos = iface_param->value[0]; 2433 break; 2434 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 2435 if (iface_param->iface_num & 0x1) 2436 break; 2437 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2438 init_fw_cb->ipv4_ip_opts |= 2439 cpu_to_le16(IPOPT_GRAT_ARP_EN); 2440 else 2441 init_fw_cb->ipv4_ip_opts &= 2442 cpu_to_le16(~IPOPT_GRAT_ARP_EN); 2443 break; 2444 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 2445 if (iface_param->iface_num & 0x1) 2446 break; 2447 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2448 init_fw_cb->ipv4_ip_opts |= 2449 cpu_to_le16(IPOPT_ALT_CID_EN); 2450 else 2451 init_fw_cb->ipv4_ip_opts &= 2452 cpu_to_le16(~IPOPT_ALT_CID_EN); 2453 break; 2454 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 2455 if (iface_param->iface_num & 0x1) 2456 break; 2457 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, 2458 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); 2459 init_fw_cb->ipv4_dhcp_alt_cid_len = 2460 strlen(init_fw_cb->ipv4_dhcp_alt_cid); 2461 break; 2462 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 2463 if (iface_param->iface_num & 0x1) 2464 break; 2465 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2466 init_fw_cb->ipv4_ip_opts |= 2467 cpu_to_le16(IPOPT_REQ_VID_EN); 2468 else 2469 init_fw_cb->ipv4_ip_opts &= 2470 cpu_to_le16(~IPOPT_REQ_VID_EN); 2471 break; 2472 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 2473 if (iface_param->iface_num & 0x1) 2474 break; 2475 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2476 init_fw_cb->ipv4_ip_opts |= 2477 cpu_to_le16(IPOPT_USE_VID_EN); 2478 else 2479 init_fw_cb->ipv4_ip_opts &= 2480 cpu_to_le16(~IPOPT_USE_VID_EN); 2481 break; 2482 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 2483 if (iface_param->iface_num & 0x1) 2484 break; 2485 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, 2486 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); 2487 init_fw_cb->ipv4_dhcp_vid_len = 2488 strlen(init_fw_cb->ipv4_dhcp_vid); 2489 break; 2490 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 2491 if (iface_param->iface_num & 0x1) 2492 break; 2493 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2494 init_fw_cb->ipv4_ip_opts |= 2495 cpu_to_le16(IPOPT_LEARN_IQN_EN); 2496 else 2497 init_fw_cb->ipv4_ip_opts &= 2498 cpu_to_le16(~IPOPT_LEARN_IQN_EN); 2499 break; 2500 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 2501 if (iface_param->iface_num & 0x1) 2502 break; 2503 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2504 init_fw_cb->ipv4_ip_opts |= 2505 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); 2506 else 2507 init_fw_cb->ipv4_ip_opts &= 2508 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); 2509 break; 2510 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 2511 if (iface_param->iface_num & 0x1) 2512 break; 2513 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2514 init_fw_cb->ipv4_ip_opts |= 2515 cpu_to_le16(IPOPT_IN_FORWARD_EN); 2516 else 2517 init_fw_cb->ipv4_ip_opts &= 2518 cpu_to_le16(~IPOPT_IN_FORWARD_EN); 2519 break; 2520 case ISCSI_NET_PARAM_REDIRECT_EN: 2521 if (iface_param->iface_num & 0x1) 2522 break; 2523 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2524 init_fw_cb->ipv4_ip_opts |= 2525 cpu_to_le16(IPOPT_ARP_REDIRECT_EN); 2526 else 2527 init_fw_cb->ipv4_ip_opts &= 2528 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); 2529 break; 2530 case ISCSI_NET_PARAM_IPV4_TTL: 2531 if (iface_param->iface_num & 0x1) 2532 break; 2533 init_fw_cb->ipv4_ttl = iface_param->value[0]; 2534 break; 2535 default: 2536 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 2537 iface_param->param); 2538 break; 2539 } 2540 } 2541 2542 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, 2543 struct iscsi_iface_param_info *iface_param, 2544 struct addr_ctrl_blk *init_fw_cb) 2545 { 2546 switch (iface_param->param) { 2547 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 2548 if (iface_param->iface_num & 0x1) 2549 break; 2550 init_fw_cb->def_timeout = 2551 cpu_to_le16(*(uint16_t *)iface_param->value); 2552 break; 2553 case ISCSI_IFACE_PARAM_HDRDGST_EN: 2554 if (iface_param->iface_num & 0x1) 2555 break; 2556 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2557 init_fw_cb->iscsi_opts |= 2558 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); 2559 else 2560 init_fw_cb->iscsi_opts &= 2561 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); 2562 break; 2563 case ISCSI_IFACE_PARAM_DATADGST_EN: 2564 if (iface_param->iface_num & 0x1) 2565 break; 2566 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2567 init_fw_cb->iscsi_opts |= 2568 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); 2569 else 2570 init_fw_cb->iscsi_opts &= 2571 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); 2572 break; 2573 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 2574 if (iface_param->iface_num & 0x1) 2575 break; 2576 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2577 init_fw_cb->iscsi_opts |= 2578 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); 2579 else 2580 init_fw_cb->iscsi_opts &= 2581 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); 2582 break; 2583 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 2584 if (iface_param->iface_num & 0x1) 2585 break; 2586 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2587 init_fw_cb->iscsi_opts |= 2588 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); 2589 else 2590 init_fw_cb->iscsi_opts &= 2591 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); 2592 break; 2593 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 2594 if (iface_param->iface_num & 0x1) 2595 break; 2596 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2597 init_fw_cb->iscsi_opts |= 2598 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); 2599 else 2600 init_fw_cb->iscsi_opts &= 2601 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); 2602 break; 2603 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 2604 if (iface_param->iface_num & 0x1) 2605 break; 2606 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2607 init_fw_cb->iscsi_opts |= 2608 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); 2609 else 2610 init_fw_cb->iscsi_opts &= 2611 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); 2612 break; 2613 case ISCSI_IFACE_PARAM_ERL: 2614 if (iface_param->iface_num & 0x1) 2615 break; 2616 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); 2617 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & 2618 ISCSIOPTS_ERL); 2619 break; 2620 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 2621 if (iface_param->iface_num & 0x1) 2622 break; 2623 init_fw_cb->iscsi_max_pdu_size = 2624 cpu_to_le32(*(uint32_t *)iface_param->value) / 2625 BYTE_UNITS; 2626 break; 2627 case ISCSI_IFACE_PARAM_FIRST_BURST: 2628 if (iface_param->iface_num & 0x1) 2629 break; 2630 init_fw_cb->iscsi_fburst_len = 2631 cpu_to_le32(*(uint32_t *)iface_param->value) / 2632 BYTE_UNITS; 2633 break; 2634 case ISCSI_IFACE_PARAM_MAX_R2T: 2635 if (iface_param->iface_num & 0x1) 2636 break; 2637 init_fw_cb->iscsi_max_outstnd_r2t = 2638 cpu_to_le16(*(uint16_t *)iface_param->value); 2639 break; 2640 case ISCSI_IFACE_PARAM_MAX_BURST: 2641 if (iface_param->iface_num & 0x1) 2642 break; 2643 init_fw_cb->iscsi_max_burst_len = 2644 cpu_to_le32(*(uint32_t *)iface_param->value) / 2645 BYTE_UNITS; 2646 break; 2647 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 2648 if (iface_param->iface_num & 0x1) 2649 break; 2650 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2651 init_fw_cb->iscsi_opts |= 2652 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); 2653 else 2654 init_fw_cb->iscsi_opts &= 2655 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); 2656 break; 2657 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 2658 if (iface_param->iface_num & 0x1) 2659 break; 2660 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2661 init_fw_cb->iscsi_opts |= 2662 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); 2663 else 2664 init_fw_cb->iscsi_opts &= 2665 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); 2666 break; 2667 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 2668 if (iface_param->iface_num & 0x1) 2669 break; 2670 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2671 init_fw_cb->iscsi_opts |= 2672 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); 2673 else 2674 init_fw_cb->iscsi_opts &= 2675 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); 2676 break; 2677 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 2678 if (iface_param->iface_num & 0x1) 2679 break; 2680 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2681 init_fw_cb->iscsi_opts |= 2682 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2683 else 2684 init_fw_cb->iscsi_opts &= 2685 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2686 break; 2687 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 2688 if (iface_param->iface_num & 0x1) 2689 break; 2690 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2691 init_fw_cb->iscsi_opts |= 2692 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2693 else 2694 init_fw_cb->iscsi_opts &= 2695 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2696 break; 2697 default: 2698 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", 2699 iface_param->param); 2700 break; 2701 } 2702 } 2703 2704 static void 2705 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 2706 { 2707 struct addr_ctrl_blk_def *acb; 2708 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 2709 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 2710 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 2711 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 2712 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 2713 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 2714 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 2715 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 2716 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 2717 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 2718 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 2719 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 2720 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 2721 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 2722 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 2723 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 2724 } 2725 2726 static int 2727 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 2728 { 2729 struct scsi_qla_host *ha = to_qla_host(shost); 2730 int rval = 0; 2731 struct iscsi_iface_param_info *iface_param = NULL; 2732 struct addr_ctrl_blk *init_fw_cb = NULL; 2733 dma_addr_t init_fw_cb_dma; 2734 uint32_t mbox_cmd[MBOX_REG_COUNT]; 2735 uint32_t mbox_sts[MBOX_REG_COUNT]; 2736 uint32_t rem = len; 2737 struct nlattr *attr; 2738 2739 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 2740 sizeof(struct addr_ctrl_blk), 2741 &init_fw_cb_dma, GFP_KERNEL); 2742 if (!init_fw_cb) { 2743 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 2744 __func__); 2745 return -ENOMEM; 2746 } 2747 2748 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 2749 memset(&mbox_sts, 0, sizeof(mbox_sts)); 2750 2751 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 2752 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 2753 rval = -EIO; 2754 goto exit_init_fw_cb; 2755 } 2756 2757 nla_for_each_attr(attr, data, len, rem) { 2758 iface_param = nla_data(attr); 2759 2760 if (iface_param->param_type == ISCSI_NET_PARAM) { 2761 switch (iface_param->iface_type) { 2762 case ISCSI_IFACE_TYPE_IPV4: 2763 switch (iface_param->iface_num) { 2764 case 0: 2765 qla4xxx_set_ipv4(ha, iface_param, 2766 init_fw_cb); 2767 break; 2768 default: 2769 /* Cannot have more than one IPv4 interface */ 2770 ql4_printk(KERN_ERR, ha, 2771 "Invalid IPv4 iface number = %d\n", 2772 iface_param->iface_num); 2773 break; 2774 } 2775 break; 2776 case ISCSI_IFACE_TYPE_IPV6: 2777 switch (iface_param->iface_num) { 2778 case 0: 2779 case 1: 2780 qla4xxx_set_ipv6(ha, iface_param, 2781 init_fw_cb); 2782 break; 2783 default: 2784 /* Cannot have more than two IPv6 interface */ 2785 ql4_printk(KERN_ERR, ha, 2786 "Invalid IPv6 iface number = %d\n", 2787 iface_param->iface_num); 2788 break; 2789 } 2790 break; 2791 default: 2792 ql4_printk(KERN_ERR, ha, 2793 "Invalid iface type\n"); 2794 break; 2795 } 2796 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { 2797 qla4xxx_set_iscsi_param(ha, iface_param, 2798 init_fw_cb); 2799 } else { 2800 continue; 2801 } 2802 } 2803 2804 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 2805 2806 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 2807 sizeof(struct addr_ctrl_blk), 2808 FLASH_OPT_RMW_COMMIT); 2809 if (rval != QLA_SUCCESS) { 2810 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 2811 __func__); 2812 rval = -EIO; 2813 goto exit_init_fw_cb; 2814 } 2815 2816 rval = qla4xxx_disable_acb(ha); 2817 if (rval != QLA_SUCCESS) { 2818 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 2819 __func__); 2820 rval = -EIO; 2821 goto exit_init_fw_cb; 2822 } 2823 2824 wait_for_completion_timeout(&ha->disable_acb_comp, 2825 DISABLE_ACB_TOV * HZ); 2826 2827 qla4xxx_initcb_to_acb(init_fw_cb); 2828 2829 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 2830 if (rval != QLA_SUCCESS) { 2831 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 2832 __func__); 2833 rval = -EIO; 2834 goto exit_init_fw_cb; 2835 } 2836 2837 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2838 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 2839 init_fw_cb_dma); 2840 2841 exit_init_fw_cb: 2842 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 2843 init_fw_cb, init_fw_cb_dma); 2844 2845 return rval; 2846 } 2847 2848 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 2849 enum iscsi_param param, char *buf) 2850 { 2851 struct iscsi_session *sess = cls_sess->dd_data; 2852 struct ddb_entry *ddb_entry = sess->dd_data; 2853 struct scsi_qla_host *ha = ddb_entry->ha; 2854 struct iscsi_cls_conn *cls_conn = ddb_entry->conn; 2855 struct ql4_chap_table chap_tbl; 2856 int rval, len; 2857 uint16_t idx; 2858 2859 memset(&chap_tbl, 0, sizeof(chap_tbl)); 2860 switch (param) { 2861 case ISCSI_PARAM_CHAP_IN_IDX: 2862 rval = qla4xxx_get_chap_index(ha, sess->username_in, 2863 sess->password_in, BIDI_CHAP, 2864 &idx); 2865 if (rval) 2866 len = sprintf(buf, "\n"); 2867 else 2868 len = sprintf(buf, "%hu\n", idx); 2869 break; 2870 case ISCSI_PARAM_CHAP_OUT_IDX: 2871 if (ddb_entry->ddb_type == FLASH_DDB) { 2872 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 2873 idx = ddb_entry->chap_tbl_idx; 2874 rval = QLA_SUCCESS; 2875 } else { 2876 rval = QLA_ERROR; 2877 } 2878 } else { 2879 rval = qla4xxx_get_chap_index(ha, sess->username, 2880 sess->password, 2881 LOCAL_CHAP, &idx); 2882 } 2883 if (rval) 2884 len = sprintf(buf, "\n"); 2885 else 2886 len = sprintf(buf, "%hu\n", idx); 2887 break; 2888 case ISCSI_PARAM_USERNAME: 2889 case ISCSI_PARAM_PASSWORD: 2890 /* First, populate session username and password for FLASH DDB, 2891 * if not already done. This happens when session login fails 2892 * for a FLASH DDB. 2893 */ 2894 if (ddb_entry->ddb_type == FLASH_DDB && 2895 ddb_entry->chap_tbl_idx != INVALID_ENTRY && 2896 !sess->username && !sess->password) { 2897 idx = ddb_entry->chap_tbl_idx; 2898 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 2899 chap_tbl.secret, 2900 idx); 2901 if (!rval) { 2902 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 2903 (char *)chap_tbl.name, 2904 strlen((char *)chap_tbl.name)); 2905 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 2906 (char *)chap_tbl.secret, 2907 chap_tbl.secret_len); 2908 } 2909 } 2910 /* fall through */ 2911 default: 2912 return iscsi_session_get_param(cls_sess, param, buf); 2913 } 2914 2915 return len; 2916 } 2917 2918 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 2919 enum iscsi_param param, char *buf) 2920 { 2921 struct iscsi_conn *conn; 2922 struct qla_conn *qla_conn; 2923 struct sockaddr *dst_addr; 2924 2925 conn = cls_conn->dd_data; 2926 qla_conn = conn->dd_data; 2927 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 2928 2929 switch (param) { 2930 case ISCSI_PARAM_CONN_PORT: 2931 case ISCSI_PARAM_CONN_ADDRESS: 2932 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 2933 dst_addr, param, buf); 2934 default: 2935 return iscsi_conn_get_param(cls_conn, param, buf); 2936 } 2937 } 2938 2939 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 2940 { 2941 uint32_t mbx_sts = 0; 2942 uint16_t tmp_ddb_index; 2943 int ret; 2944 2945 get_ddb_index: 2946 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 2947 2948 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 2949 DEBUG2(ql4_printk(KERN_INFO, ha, 2950 "Free DDB index not available\n")); 2951 ret = QLA_ERROR; 2952 goto exit_get_ddb_index; 2953 } 2954 2955 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 2956 goto get_ddb_index; 2957 2958 DEBUG2(ql4_printk(KERN_INFO, ha, 2959 "Found a free DDB index at %d\n", tmp_ddb_index)); 2960 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 2961 if (ret == QLA_ERROR) { 2962 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 2963 ql4_printk(KERN_INFO, ha, 2964 "DDB index = %d not available trying next\n", 2965 tmp_ddb_index); 2966 goto get_ddb_index; 2967 } 2968 DEBUG2(ql4_printk(KERN_INFO, ha, 2969 "Free FW DDB not available\n")); 2970 } 2971 2972 *ddb_index = tmp_ddb_index; 2973 2974 exit_get_ddb_index: 2975 return ret; 2976 } 2977 2978 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 2979 struct ddb_entry *ddb_entry, 2980 char *existing_ipaddr, 2981 char *user_ipaddr) 2982 { 2983 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 2984 char formatted_ipaddr[DDB_IPADDR_LEN]; 2985 int status = QLA_SUCCESS, ret = 0; 2986 2987 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 2988 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2989 '\0', NULL); 2990 if (ret == 0) { 2991 status = QLA_ERROR; 2992 goto out_match; 2993 } 2994 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 2995 } else { 2996 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2997 '\0', NULL); 2998 if (ret == 0) { 2999 status = QLA_ERROR; 3000 goto out_match; 3001 } 3002 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 3003 } 3004 3005 if (strcmp(existing_ipaddr, formatted_ipaddr)) 3006 status = QLA_ERROR; 3007 3008 out_match: 3009 return status; 3010 } 3011 3012 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 3013 struct iscsi_cls_conn *cls_conn) 3014 { 3015 int idx = 0, max_ddbs, rval; 3016 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3017 struct iscsi_session *sess, *existing_sess; 3018 struct iscsi_conn *conn, *existing_conn; 3019 struct ddb_entry *ddb_entry; 3020 3021 sess = cls_sess->dd_data; 3022 conn = cls_conn->dd_data; 3023 3024 if (sess->targetname == NULL || 3025 conn->persistent_address == NULL || 3026 conn->persistent_port == 0) 3027 return QLA_ERROR; 3028 3029 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 3030 MAX_DEV_DB_ENTRIES; 3031 3032 for (idx = 0; idx < max_ddbs; idx++) { 3033 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 3034 if (ddb_entry == NULL) 3035 continue; 3036 3037 if (ddb_entry->ddb_type != FLASH_DDB) 3038 continue; 3039 3040 existing_sess = ddb_entry->sess->dd_data; 3041 existing_conn = ddb_entry->conn->dd_data; 3042 3043 if (existing_sess->targetname == NULL || 3044 existing_conn->persistent_address == NULL || 3045 existing_conn->persistent_port == 0) 3046 continue; 3047 3048 DEBUG2(ql4_printk(KERN_INFO, ha, 3049 "IQN = %s User IQN = %s\n", 3050 existing_sess->targetname, 3051 sess->targetname)); 3052 3053 DEBUG2(ql4_printk(KERN_INFO, ha, 3054 "IP = %s User IP = %s\n", 3055 existing_conn->persistent_address, 3056 conn->persistent_address)); 3057 3058 DEBUG2(ql4_printk(KERN_INFO, ha, 3059 "Port = %d User Port = %d\n", 3060 existing_conn->persistent_port, 3061 conn->persistent_port)); 3062 3063 if (strcmp(existing_sess->targetname, sess->targetname)) 3064 continue; 3065 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 3066 existing_conn->persistent_address, 3067 conn->persistent_address); 3068 if (rval == QLA_ERROR) 3069 continue; 3070 if (existing_conn->persistent_port != conn->persistent_port) 3071 continue; 3072 break; 3073 } 3074 3075 if (idx == max_ddbs) 3076 return QLA_ERROR; 3077 3078 DEBUG2(ql4_printk(KERN_INFO, ha, 3079 "Match found in fwdb sessions\n")); 3080 return QLA_SUCCESS; 3081 } 3082 3083 static struct iscsi_cls_session * 3084 qla4xxx_session_create(struct iscsi_endpoint *ep, 3085 uint16_t cmds_max, uint16_t qdepth, 3086 uint32_t initial_cmdsn) 3087 { 3088 struct iscsi_cls_session *cls_sess; 3089 struct scsi_qla_host *ha; 3090 struct qla_endpoint *qla_ep; 3091 struct ddb_entry *ddb_entry; 3092 uint16_t ddb_index; 3093 struct iscsi_session *sess; 3094 int ret; 3095 3096 if (!ep) { 3097 printk(KERN_ERR "qla4xxx: missing ep.\n"); 3098 return NULL; 3099 } 3100 3101 qla_ep = ep->dd_data; 3102 ha = to_qla_host(qla_ep->host); 3103 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3104 ha->host_no)); 3105 3106 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 3107 if (ret == QLA_ERROR) 3108 return NULL; 3109 3110 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 3111 cmds_max, sizeof(struct ddb_entry), 3112 sizeof(struct ql4_task_data), 3113 initial_cmdsn, ddb_index); 3114 if (!cls_sess) 3115 return NULL; 3116 3117 sess = cls_sess->dd_data; 3118 ddb_entry = sess->dd_data; 3119 ddb_entry->fw_ddb_index = ddb_index; 3120 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 3121 ddb_entry->ha = ha; 3122 ddb_entry->sess = cls_sess; 3123 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 3124 ddb_entry->ddb_change = qla4xxx_ddb_change; 3125 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); 3126 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 3127 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 3128 ha->tot_ddbs++; 3129 3130 return cls_sess; 3131 } 3132 3133 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 3134 { 3135 struct iscsi_session *sess; 3136 struct ddb_entry *ddb_entry; 3137 struct scsi_qla_host *ha; 3138 unsigned long flags, wtime; 3139 struct dev_db_entry *fw_ddb_entry = NULL; 3140 dma_addr_t fw_ddb_entry_dma; 3141 uint32_t ddb_state; 3142 int ret; 3143 3144 sess = cls_sess->dd_data; 3145 ddb_entry = sess->dd_data; 3146 ha = ddb_entry->ha; 3147 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3148 ha->host_no)); 3149 3150 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3151 &fw_ddb_entry_dma, GFP_KERNEL); 3152 if (!fw_ddb_entry) { 3153 ql4_printk(KERN_ERR, ha, 3154 "%s: Unable to allocate dma buffer\n", __func__); 3155 goto destroy_session; 3156 } 3157 3158 wtime = jiffies + (HZ * LOGOUT_TOV); 3159 do { 3160 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 3161 fw_ddb_entry, fw_ddb_entry_dma, 3162 NULL, NULL, &ddb_state, NULL, 3163 NULL, NULL); 3164 if (ret == QLA_ERROR) 3165 goto destroy_session; 3166 3167 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 3168 (ddb_state == DDB_DS_SESSION_FAILED)) 3169 goto destroy_session; 3170 3171 schedule_timeout_uninterruptible(HZ); 3172 } while ((time_after(wtime, jiffies))); 3173 3174 destroy_session: 3175 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 3176 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) 3177 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 3178 spin_lock_irqsave(&ha->hardware_lock, flags); 3179 qla4xxx_free_ddb(ha, ddb_entry); 3180 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3181 3182 iscsi_session_teardown(cls_sess); 3183 3184 if (fw_ddb_entry) 3185 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3186 fw_ddb_entry, fw_ddb_entry_dma); 3187 } 3188 3189 static struct iscsi_cls_conn * 3190 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 3191 { 3192 struct iscsi_cls_conn *cls_conn; 3193 struct iscsi_session *sess; 3194 struct ddb_entry *ddb_entry; 3195 struct scsi_qla_host *ha; 3196 3197 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 3198 conn_idx); 3199 if (!cls_conn) { 3200 pr_info("%s: Can not create connection for conn_idx = %u\n", 3201 __func__, conn_idx); 3202 return NULL; 3203 } 3204 3205 sess = cls_sess->dd_data; 3206 ddb_entry = sess->dd_data; 3207 ddb_entry->conn = cls_conn; 3208 3209 ha = ddb_entry->ha; 3210 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__, 3211 conn_idx)); 3212 return cls_conn; 3213 } 3214 3215 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 3216 struct iscsi_cls_conn *cls_conn, 3217 uint64_t transport_fd, int is_leading) 3218 { 3219 struct iscsi_conn *conn; 3220 struct qla_conn *qla_conn; 3221 struct iscsi_endpoint *ep; 3222 struct ddb_entry *ddb_entry; 3223 struct scsi_qla_host *ha; 3224 struct iscsi_session *sess; 3225 3226 sess = cls_session->dd_data; 3227 ddb_entry = sess->dd_data; 3228 ha = ddb_entry->ha; 3229 3230 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3231 cls_session->sid, cls_conn->cid)); 3232 3233 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 3234 return -EINVAL; 3235 ep = iscsi_lookup_endpoint(transport_fd); 3236 if (!ep) 3237 return -EINVAL; 3238 conn = cls_conn->dd_data; 3239 qla_conn = conn->dd_data; 3240 qla_conn->qla_ep = ep->dd_data; 3241 return 0; 3242 } 3243 3244 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3245 { 3246 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3247 struct iscsi_session *sess; 3248 struct ddb_entry *ddb_entry; 3249 struct scsi_qla_host *ha; 3250 struct dev_db_entry *fw_ddb_entry = NULL; 3251 dma_addr_t fw_ddb_entry_dma; 3252 uint32_t mbx_sts = 0; 3253 int ret = 0; 3254 int status = QLA_SUCCESS; 3255 3256 sess = cls_sess->dd_data; 3257 ddb_entry = sess->dd_data; 3258 ha = ddb_entry->ha; 3259 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3260 cls_sess->sid, cls_conn->cid)); 3261 3262 /* Check if we have matching FW DDB, if yes then do not 3263 * login to this target. This could cause target to logout previous 3264 * connection 3265 */ 3266 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3267 if (ret == QLA_SUCCESS) { 3268 ql4_printk(KERN_INFO, ha, 3269 "Session already exist in FW.\n"); 3270 ret = -EEXIST; 3271 goto exit_conn_start; 3272 } 3273 3274 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3275 &fw_ddb_entry_dma, GFP_KERNEL); 3276 if (!fw_ddb_entry) { 3277 ql4_printk(KERN_ERR, ha, 3278 "%s: Unable to allocate dma buffer\n", __func__); 3279 ret = -ENOMEM; 3280 goto exit_conn_start; 3281 } 3282 3283 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3284 if (ret) { 3285 /* If iscsid is stopped and started then no need to do 3286 * set param again since ddb state will be already 3287 * active and FW does not allow set ddb to an 3288 * active session. 3289 */ 3290 if (mbx_sts) 3291 if (ddb_entry->fw_ddb_device_state == 3292 DDB_DS_SESSION_ACTIVE) { 3293 ddb_entry->unblock_sess(ddb_entry->sess); 3294 goto exit_set_param; 3295 } 3296 3297 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3298 __func__, ddb_entry->fw_ddb_index); 3299 goto exit_conn_start; 3300 } 3301 3302 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3303 if (status == QLA_ERROR) { 3304 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3305 sess->targetname); 3306 ret = -EINVAL; 3307 goto exit_conn_start; 3308 } 3309 3310 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3311 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3312 3313 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3314 ddb_entry->fw_ddb_device_state)); 3315 3316 exit_set_param: 3317 ret = 0; 3318 3319 exit_conn_start: 3320 if (fw_ddb_entry) 3321 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3322 fw_ddb_entry, fw_ddb_entry_dma); 3323 return ret; 3324 } 3325 3326 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3327 { 3328 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3329 struct iscsi_session *sess; 3330 struct scsi_qla_host *ha; 3331 struct ddb_entry *ddb_entry; 3332 int options; 3333 3334 sess = cls_sess->dd_data; 3335 ddb_entry = sess->dd_data; 3336 ha = ddb_entry->ha; 3337 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, 3338 cls_conn->cid)); 3339 3340 options = LOGOUT_OPTION_CLOSE_SESSION; 3341 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3342 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3343 } 3344 3345 static void qla4xxx_task_work(struct work_struct *wdata) 3346 { 3347 struct ql4_task_data *task_data; 3348 struct scsi_qla_host *ha; 3349 struct passthru_status *sts; 3350 struct iscsi_task *task; 3351 struct iscsi_hdr *hdr; 3352 uint8_t *data; 3353 uint32_t data_len; 3354 struct iscsi_conn *conn; 3355 int hdr_len; 3356 itt_t itt; 3357 3358 task_data = container_of(wdata, struct ql4_task_data, task_work); 3359 ha = task_data->ha; 3360 task = task_data->task; 3361 sts = &task_data->sts; 3362 hdr_len = sizeof(struct iscsi_hdr); 3363 3364 DEBUG3(printk(KERN_INFO "Status returned\n")); 3365 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3366 DEBUG3(printk(KERN_INFO "Response buffer")); 3367 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3368 3369 conn = task->conn; 3370 3371 switch (sts->completionStatus) { 3372 case PASSTHRU_STATUS_COMPLETE: 3373 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3374 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3375 itt = sts->handle; 3376 hdr->itt = itt; 3377 data = task_data->resp_buffer + hdr_len; 3378 data_len = task_data->resp_len - hdr_len; 3379 iscsi_complete_pdu(conn, hdr, data, data_len); 3380 break; 3381 default: 3382 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3383 sts->completionStatus); 3384 break; 3385 } 3386 return; 3387 } 3388 3389 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3390 { 3391 struct ql4_task_data *task_data; 3392 struct iscsi_session *sess; 3393 struct ddb_entry *ddb_entry; 3394 struct scsi_qla_host *ha; 3395 int hdr_len; 3396 3397 sess = task->conn->session; 3398 ddb_entry = sess->dd_data; 3399 ha = ddb_entry->ha; 3400 task_data = task->dd_data; 3401 memset(task_data, 0, sizeof(struct ql4_task_data)); 3402 3403 if (task->sc) { 3404 ql4_printk(KERN_INFO, ha, 3405 "%s: SCSI Commands not implemented\n", __func__); 3406 return -EINVAL; 3407 } 3408 3409 hdr_len = sizeof(struct iscsi_hdr); 3410 task_data->ha = ha; 3411 task_data->task = task; 3412 3413 if (task->data_count) { 3414 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3415 task->data_count, 3416 DMA_TO_DEVICE); 3417 } 3418 3419 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3420 __func__, task->conn->max_recv_dlength, hdr_len)); 3421 3422 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3423 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3424 task_data->resp_len, 3425 &task_data->resp_dma, 3426 GFP_ATOMIC); 3427 if (!task_data->resp_buffer) 3428 goto exit_alloc_pdu; 3429 3430 task_data->req_len = task->data_count + hdr_len; 3431 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3432 task_data->req_len, 3433 &task_data->req_dma, 3434 GFP_ATOMIC); 3435 if (!task_data->req_buffer) 3436 goto exit_alloc_pdu; 3437 3438 task->hdr = task_data->req_buffer; 3439 3440 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3441 3442 return 0; 3443 3444 exit_alloc_pdu: 3445 if (task_data->resp_buffer) 3446 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3447 task_data->resp_buffer, task_data->resp_dma); 3448 3449 if (task_data->req_buffer) 3450 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3451 task_data->req_buffer, task_data->req_dma); 3452 return -ENOMEM; 3453 } 3454 3455 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3456 { 3457 struct ql4_task_data *task_data; 3458 struct iscsi_session *sess; 3459 struct ddb_entry *ddb_entry; 3460 struct scsi_qla_host *ha; 3461 int hdr_len; 3462 3463 hdr_len = sizeof(struct iscsi_hdr); 3464 sess = task->conn->session; 3465 ddb_entry = sess->dd_data; 3466 ha = ddb_entry->ha; 3467 task_data = task->dd_data; 3468 3469 if (task->data_count) { 3470 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3471 task->data_count, DMA_TO_DEVICE); 3472 } 3473 3474 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3475 __func__, task->conn->max_recv_dlength, hdr_len)); 3476 3477 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3478 task_data->resp_buffer, task_data->resp_dma); 3479 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3480 task_data->req_buffer, task_data->req_dma); 3481 return; 3482 } 3483 3484 static int qla4xxx_task_xmit(struct iscsi_task *task) 3485 { 3486 struct scsi_cmnd *sc = task->sc; 3487 struct iscsi_session *sess = task->conn->session; 3488 struct ddb_entry *ddb_entry = sess->dd_data; 3489 struct scsi_qla_host *ha = ddb_entry->ha; 3490 3491 if (!sc) 3492 return qla4xxx_send_passthru0(task); 3493 3494 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3495 __func__); 3496 return -ENOSYS; 3497 } 3498 3499 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3500 struct iscsi_bus_flash_conn *conn, 3501 struct dev_db_entry *fw_ddb_entry) 3502 { 3503 unsigned long options = 0; 3504 int rc = 0; 3505 3506 options = le16_to_cpu(fw_ddb_entry->options); 3507 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3508 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3509 rc = iscsi_switch_str_param(&sess->portal_type, 3510 PORTAL_TYPE_IPV6); 3511 if (rc) 3512 goto exit_copy; 3513 } else { 3514 rc = iscsi_switch_str_param(&sess->portal_type, 3515 PORTAL_TYPE_IPV4); 3516 if (rc) 3517 goto exit_copy; 3518 } 3519 3520 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3521 &options); 3522 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3523 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3524 3525 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3526 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3527 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3528 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3529 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3530 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3531 &options); 3532 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3533 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3534 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3535 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3536 &options); 3537 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3538 sess->discovery_auth_optional = 3539 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3540 if (test_bit(ISCSIOPT_ERL1, &options)) 3541 sess->erl |= BIT_1; 3542 if (test_bit(ISCSIOPT_ERL0, &options)) 3543 sess->erl |= BIT_0; 3544 3545 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3546 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3547 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3548 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3549 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3550 conn->tcp_timer_scale |= BIT_3; 3551 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3552 conn->tcp_timer_scale |= BIT_2; 3553 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3554 conn->tcp_timer_scale |= BIT_1; 3555 3556 conn->tcp_timer_scale >>= 1; 3557 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3558 3559 options = le16_to_cpu(fw_ddb_entry->ip_options); 3560 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3561 3562 conn->max_recv_dlength = BYTE_UNITS * 3563 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3564 conn->max_xmit_dlength = BYTE_UNITS * 3565 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3566 sess->first_burst = BYTE_UNITS * 3567 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3568 sess->max_burst = BYTE_UNITS * 3569 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3570 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3571 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3572 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3573 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3574 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3575 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3576 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3577 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3578 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3579 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3580 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3581 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3582 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3583 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3584 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3585 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3586 3587 sess->default_taskmgmt_timeout = 3588 le16_to_cpu(fw_ddb_entry->def_timeout); 3589 conn->port = le16_to_cpu(fw_ddb_entry->port); 3590 3591 options = le16_to_cpu(fw_ddb_entry->options); 3592 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3593 if (!conn->ipaddress) { 3594 rc = -ENOMEM; 3595 goto exit_copy; 3596 } 3597 3598 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3599 if (!conn->redirect_ipaddr) { 3600 rc = -ENOMEM; 3601 goto exit_copy; 3602 } 3603 3604 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3605 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3606 3607 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3608 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3609 3610 conn->link_local_ipv6_addr = kmemdup( 3611 fw_ddb_entry->link_local_ipv6_addr, 3612 IPv6_ADDR_LEN, GFP_KERNEL); 3613 if (!conn->link_local_ipv6_addr) { 3614 rc = -ENOMEM; 3615 goto exit_copy; 3616 } 3617 } else { 3618 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3619 } 3620 3621 if (fw_ddb_entry->iscsi_name[0]) { 3622 rc = iscsi_switch_str_param(&sess->targetname, 3623 (char *)fw_ddb_entry->iscsi_name); 3624 if (rc) 3625 goto exit_copy; 3626 } 3627 3628 if (fw_ddb_entry->iscsi_alias[0]) { 3629 rc = iscsi_switch_str_param(&sess->targetalias, 3630 (char *)fw_ddb_entry->iscsi_alias); 3631 if (rc) 3632 goto exit_copy; 3633 } 3634 3635 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3636 3637 exit_copy: 3638 return rc; 3639 } 3640 3641 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3642 struct iscsi_bus_flash_conn *conn, 3643 struct dev_db_entry *fw_ddb_entry) 3644 { 3645 uint16_t options; 3646 int rc = 0; 3647 3648 options = le16_to_cpu(fw_ddb_entry->options); 3649 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3650 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3651 options |= BIT_8; 3652 else 3653 options &= ~BIT_8; 3654 3655 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3656 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3657 SET_BITVAL(sess->entry_state, options, BIT_3); 3658 fw_ddb_entry->options = cpu_to_le16(options); 3659 3660 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3661 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3662 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3663 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3664 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3665 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3666 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3667 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3668 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3669 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3670 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3671 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3672 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3673 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3674 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3675 3676 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3677 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3678 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3679 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3680 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3681 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3682 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3683 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3684 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3685 3686 options = le16_to_cpu(fw_ddb_entry->ip_options); 3687 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3688 fw_ddb_entry->ip_options = cpu_to_le16(options); 3689 3690 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3691 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3692 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3693 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3694 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3695 fw_ddb_entry->iscsi_first_burst_len = 3696 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3697 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3698 BYTE_UNITS); 3699 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3700 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3701 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3702 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3703 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3704 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3705 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3706 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3707 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3708 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3709 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3710 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3711 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3712 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3713 fw_ddb_entry->port = cpu_to_le16(conn->port); 3714 fw_ddb_entry->def_timeout = 3715 cpu_to_le16(sess->default_taskmgmt_timeout); 3716 3717 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3718 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3719 else 3720 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3721 3722 if (conn->ipaddress) 3723 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3724 sizeof(fw_ddb_entry->ip_addr)); 3725 3726 if (conn->redirect_ipaddr) 3727 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3728 sizeof(fw_ddb_entry->tgt_addr)); 3729 3730 if (conn->link_local_ipv6_addr) 3731 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3732 conn->link_local_ipv6_addr, 3733 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3734 3735 if (sess->targetname) 3736 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3737 sizeof(fw_ddb_entry->iscsi_name)); 3738 3739 if (sess->targetalias) 3740 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3741 sizeof(fw_ddb_entry->iscsi_alias)); 3742 3743 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3744 3745 return rc; 3746 } 3747 3748 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3749 struct iscsi_session *sess, 3750 struct dev_db_entry *fw_ddb_entry) 3751 { 3752 unsigned long options = 0; 3753 uint16_t ddb_link; 3754 uint16_t disc_parent; 3755 char ip_addr[DDB_IPADDR_LEN]; 3756 3757 options = le16_to_cpu(fw_ddb_entry->options); 3758 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3759 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3760 &options); 3761 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3762 3763 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3764 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3765 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3766 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3767 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3768 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3769 &options); 3770 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3771 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3772 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3773 &options); 3774 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3775 sess->discovery_auth_optional = 3776 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3777 if (test_bit(ISCSIOPT_ERL1, &options)) 3778 sess->erl |= BIT_1; 3779 if (test_bit(ISCSIOPT_ERL0, &options)) 3780 sess->erl |= BIT_0; 3781 3782 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3783 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3784 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3785 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3786 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3787 conn->tcp_timer_scale |= BIT_3; 3788 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3789 conn->tcp_timer_scale |= BIT_2; 3790 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3791 conn->tcp_timer_scale |= BIT_1; 3792 3793 conn->tcp_timer_scale >>= 1; 3794 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3795 3796 options = le16_to_cpu(fw_ddb_entry->ip_options); 3797 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3798 3799 conn->max_recv_dlength = BYTE_UNITS * 3800 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3801 conn->max_xmit_dlength = BYTE_UNITS * 3802 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3803 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3804 sess->first_burst = BYTE_UNITS * 3805 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3806 sess->max_burst = BYTE_UNITS * 3807 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3808 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3809 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3810 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3811 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3812 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3813 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3814 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3815 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3816 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3817 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3818 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3819 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3820 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3821 3822 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3823 if (ddb_link == DDB_ISNS) 3824 disc_parent = ISCSI_DISC_PARENT_ISNS; 3825 else if (ddb_link == DDB_NO_LINK) 3826 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3827 else if (ddb_link < MAX_DDB_ENTRIES) 3828 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3829 else 3830 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3831 3832 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3833 iscsi_get_discovery_parent_name(disc_parent), 0); 3834 3835 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3836 (char *)fw_ddb_entry->iscsi_alias, 0); 3837 3838 options = le16_to_cpu(fw_ddb_entry->options); 3839 if (options & DDB_OPT_IPV6_DEVICE) { 3840 memset(ip_addr, 0, sizeof(ip_addr)); 3841 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3842 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3843 (char *)ip_addr, 0); 3844 } 3845 } 3846 3847 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3848 struct dev_db_entry *fw_ddb_entry, 3849 struct iscsi_cls_session *cls_sess, 3850 struct iscsi_cls_conn *cls_conn) 3851 { 3852 int buflen = 0; 3853 struct iscsi_session *sess; 3854 struct ddb_entry *ddb_entry; 3855 struct ql4_chap_table chap_tbl; 3856 struct iscsi_conn *conn; 3857 char ip_addr[DDB_IPADDR_LEN]; 3858 uint16_t options = 0; 3859 3860 sess = cls_sess->dd_data; 3861 ddb_entry = sess->dd_data; 3862 conn = cls_conn->dd_data; 3863 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3864 3865 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3866 3867 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3868 3869 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3870 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3871 3872 memset(ip_addr, 0, sizeof(ip_addr)); 3873 options = le16_to_cpu(fw_ddb_entry->options); 3874 if (options & DDB_OPT_IPV6_DEVICE) { 3875 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3876 3877 memset(ip_addr, 0, sizeof(ip_addr)); 3878 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3879 } else { 3880 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3881 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3882 } 3883 3884 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3885 (char *)ip_addr, buflen); 3886 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3887 (char *)fw_ddb_entry->iscsi_name, buflen); 3888 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3889 (char *)ha->name_string, buflen); 3890 3891 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3892 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3893 chap_tbl.secret, 3894 ddb_entry->chap_tbl_idx)) { 3895 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3896 (char *)chap_tbl.name, 3897 strlen((char *)chap_tbl.name)); 3898 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3899 (char *)chap_tbl.secret, 3900 chap_tbl.secret_len); 3901 } 3902 } 3903 } 3904 3905 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3906 struct ddb_entry *ddb_entry) 3907 { 3908 struct iscsi_cls_session *cls_sess; 3909 struct iscsi_cls_conn *cls_conn; 3910 uint32_t ddb_state; 3911 dma_addr_t fw_ddb_entry_dma; 3912 struct dev_db_entry *fw_ddb_entry; 3913 3914 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3915 &fw_ddb_entry_dma, GFP_KERNEL); 3916 if (!fw_ddb_entry) { 3917 ql4_printk(KERN_ERR, ha, 3918 "%s: Unable to allocate dma buffer\n", __func__); 3919 goto exit_session_conn_fwddb_param; 3920 } 3921 3922 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3923 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3924 NULL, NULL, NULL) == QLA_ERROR) { 3925 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3926 "get_ddb_entry for fw_ddb_index %d\n", 3927 ha->host_no, __func__, 3928 ddb_entry->fw_ddb_index)); 3929 goto exit_session_conn_fwddb_param; 3930 } 3931 3932 cls_sess = ddb_entry->sess; 3933 3934 cls_conn = ddb_entry->conn; 3935 3936 /* Update params */ 3937 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3938 3939 exit_session_conn_fwddb_param: 3940 if (fw_ddb_entry) 3941 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3942 fw_ddb_entry, fw_ddb_entry_dma); 3943 } 3944 3945 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3946 struct ddb_entry *ddb_entry) 3947 { 3948 struct iscsi_cls_session *cls_sess; 3949 struct iscsi_cls_conn *cls_conn; 3950 struct iscsi_session *sess; 3951 struct iscsi_conn *conn; 3952 uint32_t ddb_state; 3953 dma_addr_t fw_ddb_entry_dma; 3954 struct dev_db_entry *fw_ddb_entry; 3955 3956 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3957 &fw_ddb_entry_dma, GFP_KERNEL); 3958 if (!fw_ddb_entry) { 3959 ql4_printk(KERN_ERR, ha, 3960 "%s: Unable to allocate dma buffer\n", __func__); 3961 goto exit_session_conn_param; 3962 } 3963 3964 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3965 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3966 NULL, NULL, NULL) == QLA_ERROR) { 3967 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3968 "get_ddb_entry for fw_ddb_index %d\n", 3969 ha->host_no, __func__, 3970 ddb_entry->fw_ddb_index)); 3971 goto exit_session_conn_param; 3972 } 3973 3974 cls_sess = ddb_entry->sess; 3975 sess = cls_sess->dd_data; 3976 3977 cls_conn = ddb_entry->conn; 3978 conn = cls_conn->dd_data; 3979 3980 /* Update timers after login */ 3981 ddb_entry->default_relogin_timeout = 3982 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3983 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3984 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3985 ddb_entry->default_time2wait = 3986 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3987 3988 /* Update params */ 3989 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3990 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3991 3992 memcpy(sess->initiatorname, ha->name_string, 3993 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 3994 3995 exit_session_conn_param: 3996 if (fw_ddb_entry) 3997 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3998 fw_ddb_entry, fw_ddb_entry_dma); 3999 } 4000 4001 /* 4002 * Timer routines 4003 */ 4004 static void qla4xxx_timer(struct timer_list *t); 4005 4006 static void qla4xxx_start_timer(struct scsi_qla_host *ha, 4007 unsigned long interval) 4008 { 4009 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 4010 __func__, ha->host->host_no)); 4011 timer_setup(&ha->timer, qla4xxx_timer, 0); 4012 ha->timer.expires = jiffies + interval * HZ; 4013 add_timer(&ha->timer); 4014 ha->timer_active = 1; 4015 } 4016 4017 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 4018 { 4019 del_timer_sync(&ha->timer); 4020 ha->timer_active = 0; 4021 } 4022 4023 /*** 4024 * qla4xxx_mark_device_missing - blocks the session 4025 * @cls_session: Pointer to the session to be blocked 4026 * @ddb_entry: Pointer to device database entry 4027 * 4028 * This routine marks a device missing and close connection. 4029 **/ 4030 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 4031 { 4032 iscsi_block_session(cls_session); 4033 } 4034 4035 /** 4036 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 4037 * @ha: Pointer to host adapter structure. 4038 * 4039 * This routine marks a device missing and resets the relogin retry count. 4040 **/ 4041 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 4042 { 4043 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 4044 } 4045 4046 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 4047 struct ddb_entry *ddb_entry, 4048 struct scsi_cmnd *cmd) 4049 { 4050 struct srb *srb; 4051 4052 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 4053 if (!srb) 4054 return srb; 4055 4056 kref_init(&srb->srb_ref); 4057 srb->ha = ha; 4058 srb->ddb = ddb_entry; 4059 srb->cmd = cmd; 4060 srb->flags = 0; 4061 CMD_SP(cmd) = (void *)srb; 4062 4063 return srb; 4064 } 4065 4066 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4067 { 4068 struct scsi_cmnd *cmd = srb->cmd; 4069 4070 if (srb->flags & SRB_DMA_VALID) { 4071 scsi_dma_unmap(cmd); 4072 srb->flags &= ~SRB_DMA_VALID; 4073 } 4074 CMD_SP(cmd) = NULL; 4075 } 4076 4077 void qla4xxx_srb_compl(struct kref *ref) 4078 { 4079 struct srb *srb = container_of(ref, struct srb, srb_ref); 4080 struct scsi_cmnd *cmd = srb->cmd; 4081 struct scsi_qla_host *ha = srb->ha; 4082 4083 qla4xxx_srb_free_dma(ha, srb); 4084 4085 mempool_free(srb, ha->srb_mempool); 4086 4087 cmd->scsi_done(cmd); 4088 } 4089 4090 /** 4091 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4092 * @host: scsi host 4093 * @cmd: Pointer to Linux's SCSI command structure 4094 * 4095 * Remarks: 4096 * This routine is invoked by Linux to send a SCSI command to the driver. 4097 * The mid-level driver tries to ensure that queuecommand never gets 4098 * invoked concurrently with itself or the interrupt handler (although 4099 * the interrupt handler may call this routine as part of request- 4100 * completion handling). Unfortunely, it sometimes calls the scheduler 4101 * in interrupt context which is a big NO! NO!. 4102 **/ 4103 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4104 { 4105 struct scsi_qla_host *ha = to_qla_host(host); 4106 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4107 struct iscsi_cls_session *sess = ddb_entry->sess; 4108 struct srb *srb; 4109 int rval; 4110 4111 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4112 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4113 cmd->result = DID_NO_CONNECT << 16; 4114 else 4115 cmd->result = DID_REQUEUE << 16; 4116 goto qc_fail_command; 4117 } 4118 4119 if (!sess) { 4120 cmd->result = DID_IMM_RETRY << 16; 4121 goto qc_fail_command; 4122 } 4123 4124 rval = iscsi_session_chkready(sess); 4125 if (rval) { 4126 cmd->result = rval; 4127 goto qc_fail_command; 4128 } 4129 4130 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4131 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4132 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4133 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4134 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4135 !test_bit(AF_ONLINE, &ha->flags) || 4136 !test_bit(AF_LINK_UP, &ha->flags) || 4137 test_bit(AF_LOOPBACK, &ha->flags) || 4138 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4139 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4140 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4141 goto qc_host_busy; 4142 4143 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4144 if (!srb) 4145 goto qc_host_busy; 4146 4147 rval = qla4xxx_send_command_to_isp(ha, srb); 4148 if (rval != QLA_SUCCESS) 4149 goto qc_host_busy_free_sp; 4150 4151 return 0; 4152 4153 qc_host_busy_free_sp: 4154 qla4xxx_srb_free_dma(ha, srb); 4155 mempool_free(srb, ha->srb_mempool); 4156 4157 qc_host_busy: 4158 return SCSI_MLQUEUE_HOST_BUSY; 4159 4160 qc_fail_command: 4161 cmd->scsi_done(cmd); 4162 4163 return 0; 4164 } 4165 4166 /** 4167 * qla4xxx_mem_free - frees memory allocated to adapter 4168 * @ha: Pointer to host adapter structure. 4169 * 4170 * Frees memory previously allocated by qla4xxx_mem_alloc 4171 **/ 4172 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4173 { 4174 if (ha->queues) 4175 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4176 ha->queues_dma); 4177 4178 if (ha->fw_dump) 4179 vfree(ha->fw_dump); 4180 4181 ha->queues_len = 0; 4182 ha->queues = NULL; 4183 ha->queues_dma = 0; 4184 ha->request_ring = NULL; 4185 ha->request_dma = 0; 4186 ha->response_ring = NULL; 4187 ha->response_dma = 0; 4188 ha->shadow_regs = NULL; 4189 ha->shadow_regs_dma = 0; 4190 ha->fw_dump = NULL; 4191 ha->fw_dump_size = 0; 4192 4193 /* Free srb pool. */ 4194 mempool_destroy(ha->srb_mempool); 4195 ha->srb_mempool = NULL; 4196 4197 dma_pool_destroy(ha->chap_dma_pool); 4198 4199 if (ha->chap_list) 4200 vfree(ha->chap_list); 4201 ha->chap_list = NULL; 4202 4203 dma_pool_destroy(ha->fw_ddb_dma_pool); 4204 4205 /* release io space registers */ 4206 if (is_qla8022(ha)) { 4207 if (ha->nx_pcibase) 4208 iounmap( 4209 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4210 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4211 if (ha->nx_pcibase) 4212 iounmap( 4213 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4214 } else if (ha->reg) { 4215 iounmap(ha->reg); 4216 } 4217 4218 if (ha->reset_tmplt.buff) 4219 vfree(ha->reset_tmplt.buff); 4220 4221 pci_release_regions(ha->pdev); 4222 } 4223 4224 /** 4225 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4226 * @ha: Pointer to host adapter structure 4227 * 4228 * Allocates DMA memory for request and response queues. Also allocates memory 4229 * for srbs. 4230 **/ 4231 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4232 { 4233 unsigned long align; 4234 4235 /* Allocate contiguous block of DMA memory for queues. */ 4236 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4237 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4238 sizeof(struct shadow_regs) + 4239 MEM_ALIGN_VALUE + 4240 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4241 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 4242 &ha->queues_dma, GFP_KERNEL); 4243 if (ha->queues == NULL) { 4244 ql4_printk(KERN_WARNING, ha, 4245 "Memory Allocation failed - queues.\n"); 4246 4247 goto mem_alloc_error_exit; 4248 } 4249 4250 /* 4251 * As per RISC alignment requirements -- the bus-address must be a 4252 * multiple of the request-ring size (in bytes). 4253 */ 4254 align = 0; 4255 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4256 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4257 (MEM_ALIGN_VALUE - 1)); 4258 4259 /* Update request and response queue pointers. */ 4260 ha->request_dma = ha->queues_dma + align; 4261 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4262 ha->response_dma = ha->queues_dma + align + 4263 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4264 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4265 (REQUEST_QUEUE_DEPTH * 4266 QUEUE_SIZE)); 4267 ha->shadow_regs_dma = ha->queues_dma + align + 4268 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4269 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4270 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4271 (REQUEST_QUEUE_DEPTH * 4272 QUEUE_SIZE) + 4273 (RESPONSE_QUEUE_DEPTH * 4274 QUEUE_SIZE)); 4275 4276 /* Allocate memory for srb pool. */ 4277 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4278 mempool_free_slab, srb_cachep); 4279 if (ha->srb_mempool == NULL) { 4280 ql4_printk(KERN_WARNING, ha, 4281 "Memory Allocation failed - SRB Pool.\n"); 4282 4283 goto mem_alloc_error_exit; 4284 } 4285 4286 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4287 CHAP_DMA_BLOCK_SIZE, 8, 0); 4288 4289 if (ha->chap_dma_pool == NULL) { 4290 ql4_printk(KERN_WARNING, ha, 4291 "%s: chap_dma_pool allocation failed..\n", __func__); 4292 goto mem_alloc_error_exit; 4293 } 4294 4295 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4296 DDB_DMA_BLOCK_SIZE, 8, 0); 4297 4298 if (ha->fw_ddb_dma_pool == NULL) { 4299 ql4_printk(KERN_WARNING, ha, 4300 "%s: fw_ddb_dma_pool allocation failed..\n", 4301 __func__); 4302 goto mem_alloc_error_exit; 4303 } 4304 4305 return QLA_SUCCESS; 4306 4307 mem_alloc_error_exit: 4308 return QLA_ERROR; 4309 } 4310 4311 /** 4312 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4313 * @ha: adapter block pointer. 4314 * 4315 * Note: The caller should not hold the idc lock. 4316 **/ 4317 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4318 { 4319 uint32_t temp, temp_state, temp_val; 4320 int status = QLA_SUCCESS; 4321 4322 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4323 4324 temp_state = qla82xx_get_temp_state(temp); 4325 temp_val = qla82xx_get_temp_val(temp); 4326 4327 if (temp_state == QLA82XX_TEMP_PANIC) { 4328 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4329 " exceeds maximum allowed. Hardware has been shut" 4330 " down.\n", temp_val); 4331 status = QLA_ERROR; 4332 } else if (temp_state == QLA82XX_TEMP_WARN) { 4333 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4334 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4335 " degrees C exceeds operating range." 4336 " Immediate action needed.\n", temp_val); 4337 } else { 4338 if (ha->temperature == QLA82XX_TEMP_WARN) 4339 ql4_printk(KERN_INFO, ha, "Device temperature is" 4340 " now %d degrees C in normal range.\n", 4341 temp_val); 4342 } 4343 ha->temperature = temp_state; 4344 return status; 4345 } 4346 4347 /** 4348 * qla4_8xxx_check_fw_alive - Check firmware health 4349 * @ha: Pointer to host adapter structure. 4350 * 4351 * Context: Interrupt 4352 **/ 4353 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4354 { 4355 uint32_t fw_heartbeat_counter; 4356 int status = QLA_SUCCESS; 4357 4358 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4359 QLA8XXX_PEG_ALIVE_COUNTER); 4360 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4361 if (fw_heartbeat_counter == 0xffffffff) { 4362 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4363 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4364 ha->host_no, __func__)); 4365 return status; 4366 } 4367 4368 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4369 ha->seconds_since_last_heartbeat++; 4370 /* FW not alive after 2 seconds */ 4371 if (ha->seconds_since_last_heartbeat == 2) { 4372 ha->seconds_since_last_heartbeat = 0; 4373 qla4_8xxx_dump_peg_reg(ha); 4374 status = QLA_ERROR; 4375 } 4376 } else 4377 ha->seconds_since_last_heartbeat = 0; 4378 4379 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4380 return status; 4381 } 4382 4383 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4384 { 4385 uint32_t halt_status; 4386 int halt_status_unrecoverable = 0; 4387 4388 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4389 4390 if (is_qla8022(ha)) { 4391 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4392 __func__); 4393 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4394 CRB_NIU_XG_PAUSE_CTL_P0 | 4395 CRB_NIU_XG_PAUSE_CTL_P1); 4396 4397 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4398 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4399 __func__); 4400 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4401 halt_status_unrecoverable = 1; 4402 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4403 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4404 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4405 __func__); 4406 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4407 halt_status_unrecoverable = 1; 4408 } 4409 4410 /* 4411 * Since we cannot change dev_state in interrupt context, 4412 * set appropriate DPC flag then wakeup DPC 4413 */ 4414 if (halt_status_unrecoverable) { 4415 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4416 } else { 4417 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4418 __func__); 4419 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4420 } 4421 qla4xxx_mailbox_premature_completion(ha); 4422 qla4xxx_wake_dpc(ha); 4423 } 4424 4425 /** 4426 * qla4_8xxx_watchdog - Poll dev state 4427 * @ha: Pointer to host adapter structure. 4428 * 4429 * Context: Interrupt 4430 **/ 4431 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4432 { 4433 uint32_t dev_state; 4434 uint32_t idc_ctrl; 4435 4436 if (is_qla8032(ha) && 4437 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4438 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4439 __func__, ha->func_num); 4440 4441 /* don't poll if reset is going on */ 4442 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4443 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4444 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4445 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4446 4447 if (qla4_8xxx_check_temp(ha)) { 4448 if (is_qla8022(ha)) { 4449 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4450 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4451 CRB_NIU_XG_PAUSE_CTL_P0 | 4452 CRB_NIU_XG_PAUSE_CTL_P1); 4453 } 4454 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4455 qla4xxx_wake_dpc(ha); 4456 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4457 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4458 4459 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4460 __func__); 4461 4462 if (is_qla8032(ha) || is_qla8042(ha)) { 4463 idc_ctrl = qla4_83xx_rd_reg(ha, 4464 QLA83XX_IDC_DRV_CTRL); 4465 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4466 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4467 __func__); 4468 qla4xxx_mailbox_premature_completion( 4469 ha); 4470 } 4471 } 4472 4473 if ((is_qla8032(ha) || is_qla8042(ha)) || 4474 (is_qla8022(ha) && !ql4xdontresethba)) { 4475 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4476 qla4xxx_wake_dpc(ha); 4477 } 4478 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4479 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4480 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4481 __func__); 4482 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4483 qla4xxx_wake_dpc(ha); 4484 } else { 4485 /* Check firmware health */ 4486 if (qla4_8xxx_check_fw_alive(ha)) 4487 qla4_8xxx_process_fw_error(ha); 4488 } 4489 } 4490 } 4491 4492 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4493 { 4494 struct iscsi_session *sess; 4495 struct ddb_entry *ddb_entry; 4496 struct scsi_qla_host *ha; 4497 4498 sess = cls_sess->dd_data; 4499 ddb_entry = sess->dd_data; 4500 ha = ddb_entry->ha; 4501 4502 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4503 return; 4504 4505 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4506 !iscsi_is_session_online(cls_sess)) { 4507 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4508 INVALID_ENTRY) { 4509 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4510 0) { 4511 atomic_set(&ddb_entry->retry_relogin_timer, 4512 INVALID_ENTRY); 4513 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4514 set_bit(DF_RELOGIN, &ddb_entry->flags); 4515 DEBUG2(ql4_printk(KERN_INFO, ha, 4516 "%s: index [%d] login device\n", 4517 __func__, ddb_entry->fw_ddb_index)); 4518 } else 4519 atomic_dec(&ddb_entry->retry_relogin_timer); 4520 } 4521 } 4522 4523 /* Wait for relogin to timeout */ 4524 if (atomic_read(&ddb_entry->relogin_timer) && 4525 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4526 /* 4527 * If the relogin times out and the device is 4528 * still NOT ONLINE then try and relogin again. 4529 */ 4530 if (!iscsi_is_session_online(cls_sess)) { 4531 /* Reset retry relogin timer */ 4532 atomic_inc(&ddb_entry->relogin_retry_count); 4533 DEBUG2(ql4_printk(KERN_INFO, ha, 4534 "%s: index[%d] relogin timed out-retrying" 4535 " relogin (%d), retry (%d)\n", __func__, 4536 ddb_entry->fw_ddb_index, 4537 atomic_read(&ddb_entry->relogin_retry_count), 4538 ddb_entry->default_time2wait + 4)); 4539 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4540 atomic_set(&ddb_entry->retry_relogin_timer, 4541 ddb_entry->default_time2wait + 4); 4542 } 4543 } 4544 } 4545 4546 /** 4547 * qla4xxx_timer - checks every second for work to do. 4548 * @t: Context to obtain pointer to host adapter structure. 4549 **/ 4550 static void qla4xxx_timer(struct timer_list *t) 4551 { 4552 struct scsi_qla_host *ha = from_timer(ha, t, timer); 4553 int start_dpc = 0; 4554 uint16_t w; 4555 4556 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4557 4558 /* If we are in the middle of AER/EEH processing 4559 * skip any processing and reschedule the timer 4560 */ 4561 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4562 mod_timer(&ha->timer, jiffies + HZ); 4563 return; 4564 } 4565 4566 /* Hardware read to trigger an EEH error during mailbox waits. */ 4567 if (!pci_channel_offline(ha->pdev)) 4568 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4569 4570 if (is_qla80XX(ha)) 4571 qla4_8xxx_watchdog(ha); 4572 4573 if (is_qla40XX(ha)) { 4574 /* Check for heartbeat interval. */ 4575 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4576 ha->heartbeat_interval != 0) { 4577 ha->seconds_since_last_heartbeat++; 4578 if (ha->seconds_since_last_heartbeat > 4579 ha->heartbeat_interval + 2) 4580 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4581 } 4582 } 4583 4584 /* Process any deferred work. */ 4585 if (!list_empty(&ha->work_list)) 4586 start_dpc++; 4587 4588 /* Wakeup the dpc routine for this adapter, if needed. */ 4589 if (start_dpc || 4590 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4591 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4592 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4593 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4594 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4595 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4596 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4597 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4598 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4599 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) || 4600 test_bit(DPC_AEN, &ha->dpc_flags)) { 4601 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4602 " - dpc flags = 0x%lx\n", 4603 ha->host_no, __func__, ha->dpc_flags)); 4604 qla4xxx_wake_dpc(ha); 4605 } 4606 4607 /* Reschedule timer thread to call us back in one second */ 4608 mod_timer(&ha->timer, jiffies + HZ); 4609 4610 DEBUG2(ha->seconds_since_last_intr++); 4611 } 4612 4613 /** 4614 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4615 * @ha: Pointer to host adapter structure. 4616 * 4617 * This routine stalls the driver until all outstanding commands are returned. 4618 * Caller must release the Hardware Lock prior to calling this routine. 4619 **/ 4620 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4621 { 4622 uint32_t index = 0; 4623 unsigned long flags; 4624 struct scsi_cmnd *cmd; 4625 unsigned long wtime; 4626 uint32_t wtmo; 4627 4628 if (is_qla40XX(ha)) 4629 wtmo = WAIT_CMD_TOV; 4630 else 4631 wtmo = ha->nx_reset_timeout / 2; 4632 4633 wtime = jiffies + (wtmo * HZ); 4634 4635 DEBUG2(ql4_printk(KERN_INFO, ha, 4636 "Wait up to %u seconds for cmds to complete\n", 4637 wtmo)); 4638 4639 while (!time_after_eq(jiffies, wtime)) { 4640 spin_lock_irqsave(&ha->hardware_lock, flags); 4641 /* Find a command that hasn't completed. */ 4642 for (index = 0; index < ha->host->can_queue; index++) { 4643 cmd = scsi_host_find_tag(ha->host, index); 4644 /* 4645 * We cannot just check if the index is valid, 4646 * becase if we are run from the scsi eh, then 4647 * the scsi/block layer is going to prevent 4648 * the tag from being released. 4649 */ 4650 if (cmd != NULL && CMD_SP(cmd)) 4651 break; 4652 } 4653 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4654 4655 /* If No Commands are pending, wait is complete */ 4656 if (index == ha->host->can_queue) 4657 return QLA_SUCCESS; 4658 4659 msleep(1000); 4660 } 4661 /* If we timed out on waiting for commands to come back 4662 * return ERROR. */ 4663 return QLA_ERROR; 4664 } 4665 4666 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4667 { 4668 uint32_t ctrl_status; 4669 unsigned long flags = 0; 4670 4671 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4672 4673 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4674 return QLA_ERROR; 4675 4676 spin_lock_irqsave(&ha->hardware_lock, flags); 4677 4678 /* 4679 * If the SCSI Reset Interrupt bit is set, clear it. 4680 * Otherwise, the Soft Reset won't work. 4681 */ 4682 ctrl_status = readw(&ha->reg->ctrl_status); 4683 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4684 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4685 4686 /* Issue Soft Reset */ 4687 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4688 readl(&ha->reg->ctrl_status); 4689 4690 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4691 return QLA_SUCCESS; 4692 } 4693 4694 /** 4695 * qla4xxx_soft_reset - performs soft reset. 4696 * @ha: Pointer to host adapter structure. 4697 **/ 4698 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4699 { 4700 uint32_t max_wait_time; 4701 unsigned long flags = 0; 4702 int status; 4703 uint32_t ctrl_status; 4704 4705 status = qla4xxx_hw_reset(ha); 4706 if (status != QLA_SUCCESS) 4707 return status; 4708 4709 status = QLA_ERROR; 4710 /* Wait until the Network Reset Intr bit is cleared */ 4711 max_wait_time = RESET_INTR_TOV; 4712 do { 4713 spin_lock_irqsave(&ha->hardware_lock, flags); 4714 ctrl_status = readw(&ha->reg->ctrl_status); 4715 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4716 4717 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4718 break; 4719 4720 msleep(1000); 4721 } while ((--max_wait_time)); 4722 4723 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4724 DEBUG2(printk(KERN_WARNING 4725 "scsi%ld: Network Reset Intr not cleared by " 4726 "Network function, clearing it now!\n", 4727 ha->host_no)); 4728 spin_lock_irqsave(&ha->hardware_lock, flags); 4729 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4730 readl(&ha->reg->ctrl_status); 4731 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4732 } 4733 4734 /* Wait until the firmware tells us the Soft Reset is done */ 4735 max_wait_time = SOFT_RESET_TOV; 4736 do { 4737 spin_lock_irqsave(&ha->hardware_lock, flags); 4738 ctrl_status = readw(&ha->reg->ctrl_status); 4739 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4740 4741 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4742 status = QLA_SUCCESS; 4743 break; 4744 } 4745 4746 msleep(1000); 4747 } while ((--max_wait_time)); 4748 4749 /* 4750 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4751 * after the soft reset has taken place. 4752 */ 4753 spin_lock_irqsave(&ha->hardware_lock, flags); 4754 ctrl_status = readw(&ha->reg->ctrl_status); 4755 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4756 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4757 readl(&ha->reg->ctrl_status); 4758 } 4759 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4760 4761 /* If soft reset fails then most probably the bios on other 4762 * function is also enabled. 4763 * Since the initialization is sequential the other fn 4764 * wont be able to acknowledge the soft reset. 4765 * Issue a force soft reset to workaround this scenario. 4766 */ 4767 if (max_wait_time == 0) { 4768 /* Issue Force Soft Reset */ 4769 spin_lock_irqsave(&ha->hardware_lock, flags); 4770 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4771 readl(&ha->reg->ctrl_status); 4772 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4773 /* Wait until the firmware tells us the Soft Reset is done */ 4774 max_wait_time = SOFT_RESET_TOV; 4775 do { 4776 spin_lock_irqsave(&ha->hardware_lock, flags); 4777 ctrl_status = readw(&ha->reg->ctrl_status); 4778 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4779 4780 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4781 status = QLA_SUCCESS; 4782 break; 4783 } 4784 4785 msleep(1000); 4786 } while ((--max_wait_time)); 4787 } 4788 4789 return status; 4790 } 4791 4792 /** 4793 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4794 * @ha: Pointer to host adapter structure. 4795 * @res: returned scsi status 4796 * 4797 * This routine is called just prior to a HARD RESET to return all 4798 * outstanding commands back to the Operating System. 4799 * Caller should make sure that the following locks are released 4800 * before this calling routine: Hardware lock, and io_request_lock. 4801 **/ 4802 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4803 { 4804 struct srb *srb; 4805 int i; 4806 unsigned long flags; 4807 4808 spin_lock_irqsave(&ha->hardware_lock, flags); 4809 for (i = 0; i < ha->host->can_queue; i++) { 4810 srb = qla4xxx_del_from_active_array(ha, i); 4811 if (srb != NULL) { 4812 srb->cmd->result = res; 4813 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4814 } 4815 } 4816 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4817 } 4818 4819 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4820 { 4821 clear_bit(AF_ONLINE, &ha->flags); 4822 4823 /* Disable the board */ 4824 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4825 4826 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4827 qla4xxx_mark_all_devices_missing(ha); 4828 clear_bit(AF_INIT_DONE, &ha->flags); 4829 } 4830 4831 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4832 { 4833 struct iscsi_session *sess; 4834 struct ddb_entry *ddb_entry; 4835 4836 sess = cls_session->dd_data; 4837 ddb_entry = sess->dd_data; 4838 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4839 4840 if (ddb_entry->ddb_type == FLASH_DDB) 4841 iscsi_block_session(ddb_entry->sess); 4842 else 4843 iscsi_session_failure(cls_session->dd_data, 4844 ISCSI_ERR_CONN_FAILED); 4845 } 4846 4847 /** 4848 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4849 * @ha: Pointer to host adapter structure. 4850 **/ 4851 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4852 { 4853 int status = QLA_ERROR; 4854 uint8_t reset_chip = 0; 4855 uint32_t dev_state; 4856 unsigned long wait; 4857 4858 /* Stall incoming I/O until we are done */ 4859 scsi_block_requests(ha->host); 4860 clear_bit(AF_ONLINE, &ha->flags); 4861 clear_bit(AF_LINK_UP, &ha->flags); 4862 4863 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4864 4865 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4866 4867 if ((is_qla8032(ha) || is_qla8042(ha)) && 4868 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4869 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4870 __func__); 4871 /* disable pause frame for ISP83xx */ 4872 qla4_83xx_disable_pause(ha); 4873 } 4874 4875 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4876 4877 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4878 reset_chip = 1; 4879 4880 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4881 * do not reset adapter, jump to initialize_adapter */ 4882 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4883 status = QLA_SUCCESS; 4884 goto recover_ha_init_adapter; 4885 } 4886 4887 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4888 * from eh_host_reset or ioctl module */ 4889 if (is_qla80XX(ha) && !reset_chip && 4890 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4891 4892 DEBUG2(ql4_printk(KERN_INFO, ha, 4893 "scsi%ld: %s - Performing stop_firmware...\n", 4894 ha->host_no, __func__)); 4895 status = ha->isp_ops->reset_firmware(ha); 4896 if (status == QLA_SUCCESS) { 4897 ha->isp_ops->disable_intrs(ha); 4898 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4899 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4900 } else { 4901 /* If the stop_firmware fails then 4902 * reset the entire chip */ 4903 reset_chip = 1; 4904 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4905 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4906 } 4907 } 4908 4909 /* Issue full chip reset if recovering from a catastrophic error, 4910 * or if stop_firmware fails for ISP-8xxx. 4911 * This is the default case for ISP-4xxx */ 4912 if (is_qla40XX(ha) || reset_chip) { 4913 if (is_qla40XX(ha)) 4914 goto chip_reset; 4915 4916 /* Check if 8XXX firmware is alive or not 4917 * We may have arrived here from NEED_RESET 4918 * detection only */ 4919 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4920 goto chip_reset; 4921 4922 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4923 while (time_before(jiffies, wait)) { 4924 if (qla4_8xxx_check_fw_alive(ha)) { 4925 qla4xxx_mailbox_premature_completion(ha); 4926 break; 4927 } 4928 4929 set_current_state(TASK_UNINTERRUPTIBLE); 4930 schedule_timeout(HZ); 4931 } 4932 chip_reset: 4933 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4934 qla4xxx_cmd_wait(ha); 4935 4936 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4937 DEBUG2(ql4_printk(KERN_INFO, ha, 4938 "scsi%ld: %s - Performing chip reset..\n", 4939 ha->host_no, __func__)); 4940 status = ha->isp_ops->reset_chip(ha); 4941 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4942 } 4943 4944 /* Flush any pending ddb changed AENs */ 4945 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4946 4947 recover_ha_init_adapter: 4948 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4949 if (status == QLA_SUCCESS) { 4950 /* For ISP-4xxx, force function 1 to always initialize 4951 * before function 3 to prevent both funcions from 4952 * stepping on top of the other */ 4953 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4954 ssleep(6); 4955 4956 /* NOTE: AF_ONLINE flag set upon successful completion of 4957 * qla4xxx_initialize_adapter */ 4958 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4959 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4960 status = qla4_8xxx_check_init_adapter_retry(ha); 4961 if (status == QLA_ERROR) { 4962 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4963 ha->host_no, __func__); 4964 qla4xxx_dead_adapter_cleanup(ha); 4965 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4966 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4967 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4968 &ha->dpc_flags); 4969 goto exit_recover; 4970 } 4971 } 4972 } 4973 4974 /* Retry failed adapter initialization, if necessary 4975 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4976 * case to prevent ping-pong resets between functions */ 4977 if (!test_bit(AF_ONLINE, &ha->flags) && 4978 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4979 /* Adapter initialization failed, see if we can retry 4980 * resetting the ha. 4981 * Since we don't want to block the DPC for too long 4982 * with multiple resets in the same thread, 4983 * utilize DPC to retry */ 4984 if (is_qla80XX(ha)) { 4985 ha->isp_ops->idc_lock(ha); 4986 dev_state = qla4_8xxx_rd_direct(ha, 4987 QLA8XXX_CRB_DEV_STATE); 4988 ha->isp_ops->idc_unlock(ha); 4989 if (dev_state == QLA8XXX_DEV_FAILED) { 4990 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4991 "recover adapter. H/W is in Failed " 4992 "state\n", __func__); 4993 qla4xxx_dead_adapter_cleanup(ha); 4994 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4995 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4996 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4997 &ha->dpc_flags); 4998 status = QLA_ERROR; 4999 5000 goto exit_recover; 5001 } 5002 } 5003 5004 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 5005 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 5006 DEBUG2(printk("scsi%ld: recover adapter - retrying " 5007 "(%d) more times\n", ha->host_no, 5008 ha->retry_reset_ha_cnt)); 5009 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5010 status = QLA_ERROR; 5011 } else { 5012 if (ha->retry_reset_ha_cnt > 0) { 5013 /* Schedule another Reset HA--DPC will retry */ 5014 ha->retry_reset_ha_cnt--; 5015 DEBUG2(printk("scsi%ld: recover adapter - " 5016 "retry remaining %d\n", 5017 ha->host_no, 5018 ha->retry_reset_ha_cnt)); 5019 status = QLA_ERROR; 5020 } 5021 5022 if (ha->retry_reset_ha_cnt == 0) { 5023 /* Recover adapter retries have been exhausted. 5024 * Adapter DEAD */ 5025 DEBUG2(printk("scsi%ld: recover adapter " 5026 "failed - board disabled\n", 5027 ha->host_no)); 5028 qla4xxx_dead_adapter_cleanup(ha); 5029 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5030 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5031 clear_bit(DPC_RESET_HA_FW_CONTEXT, 5032 &ha->dpc_flags); 5033 status = QLA_ERROR; 5034 } 5035 } 5036 } else { 5037 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5038 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5039 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5040 } 5041 5042 exit_recover: 5043 ha->adapter_error_count++; 5044 5045 if (test_bit(AF_ONLINE, &ha->flags)) 5046 ha->isp_ops->enable_intrs(ha); 5047 5048 scsi_unblock_requests(ha->host); 5049 5050 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 5051 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 5052 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 5053 5054 return status; 5055 } 5056 5057 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 5058 { 5059 struct iscsi_session *sess; 5060 struct ddb_entry *ddb_entry; 5061 struct scsi_qla_host *ha; 5062 5063 sess = cls_session->dd_data; 5064 ddb_entry = sess->dd_data; 5065 ha = ddb_entry->ha; 5066 if (!iscsi_is_session_online(cls_session)) { 5067 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5068 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5069 " unblock session\n", ha->host_no, __func__, 5070 ddb_entry->fw_ddb_index); 5071 iscsi_unblock_session(ddb_entry->sess); 5072 } else { 5073 /* Trigger relogin */ 5074 if (ddb_entry->ddb_type == FLASH_DDB) { 5075 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5076 test_bit(DF_DISABLE_RELOGIN, 5077 &ddb_entry->flags))) 5078 qla4xxx_arm_relogin_timer(ddb_entry); 5079 } else 5080 iscsi_session_failure(cls_session->dd_data, 5081 ISCSI_ERR_CONN_FAILED); 5082 } 5083 } 5084 } 5085 5086 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5087 { 5088 struct iscsi_session *sess; 5089 struct ddb_entry *ddb_entry; 5090 struct scsi_qla_host *ha; 5091 5092 sess = cls_session->dd_data; 5093 ddb_entry = sess->dd_data; 5094 ha = ddb_entry->ha; 5095 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5096 " unblock session\n", ha->host_no, __func__, 5097 ddb_entry->fw_ddb_index); 5098 5099 iscsi_unblock_session(ddb_entry->sess); 5100 5101 /* Start scan target */ 5102 if (test_bit(AF_ONLINE, &ha->flags)) { 5103 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5104 " start scan\n", ha->host_no, __func__, 5105 ddb_entry->fw_ddb_index); 5106 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 5107 } 5108 return QLA_SUCCESS; 5109 } 5110 5111 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5112 { 5113 struct iscsi_session *sess; 5114 struct ddb_entry *ddb_entry; 5115 struct scsi_qla_host *ha; 5116 int status = QLA_SUCCESS; 5117 5118 sess = cls_session->dd_data; 5119 ddb_entry = sess->dd_data; 5120 ha = ddb_entry->ha; 5121 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5122 " unblock user space session\n", ha->host_no, __func__, 5123 ddb_entry->fw_ddb_index); 5124 5125 if (!iscsi_is_session_online(cls_session)) { 5126 iscsi_conn_start(ddb_entry->conn); 5127 iscsi_conn_login_event(ddb_entry->conn, 5128 ISCSI_CONN_STATE_LOGGED_IN); 5129 } else { 5130 ql4_printk(KERN_INFO, ha, 5131 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5132 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5133 cls_session->sid); 5134 status = QLA_ERROR; 5135 } 5136 5137 return status; 5138 } 5139 5140 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5141 { 5142 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5143 } 5144 5145 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5146 { 5147 uint16_t relogin_timer; 5148 struct iscsi_session *sess; 5149 struct ddb_entry *ddb_entry; 5150 struct scsi_qla_host *ha; 5151 5152 sess = cls_sess->dd_data; 5153 ddb_entry = sess->dd_data; 5154 ha = ddb_entry->ha; 5155 5156 relogin_timer = max(ddb_entry->default_relogin_timeout, 5157 (uint16_t)RELOGIN_TOV); 5158 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5159 5160 DEBUG2(ql4_printk(KERN_INFO, ha, 5161 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5162 ddb_entry->fw_ddb_index, relogin_timer)); 5163 5164 qla4xxx_login_flash_ddb(cls_sess); 5165 } 5166 5167 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5168 { 5169 struct iscsi_session *sess; 5170 struct ddb_entry *ddb_entry; 5171 struct scsi_qla_host *ha; 5172 5173 sess = cls_sess->dd_data; 5174 ddb_entry = sess->dd_data; 5175 ha = ddb_entry->ha; 5176 5177 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5178 return; 5179 5180 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5181 return; 5182 5183 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5184 !iscsi_is_session_online(cls_sess)) { 5185 DEBUG2(ql4_printk(KERN_INFO, ha, 5186 "relogin issued\n")); 5187 qla4xxx_relogin_flash_ddb(cls_sess); 5188 } 5189 } 5190 5191 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5192 { 5193 if (ha->dpc_thread) 5194 queue_work(ha->dpc_thread, &ha->dpc_work); 5195 } 5196 5197 static struct qla4_work_evt * 5198 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5199 enum qla4_work_type type) 5200 { 5201 struct qla4_work_evt *e; 5202 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5203 5204 e = kzalloc(size, GFP_ATOMIC); 5205 if (!e) 5206 return NULL; 5207 5208 INIT_LIST_HEAD(&e->list); 5209 e->type = type; 5210 return e; 5211 } 5212 5213 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5214 struct qla4_work_evt *e) 5215 { 5216 unsigned long flags; 5217 5218 spin_lock_irqsave(&ha->work_lock, flags); 5219 list_add_tail(&e->list, &ha->work_list); 5220 spin_unlock_irqrestore(&ha->work_lock, flags); 5221 qla4xxx_wake_dpc(ha); 5222 } 5223 5224 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5225 enum iscsi_host_event_code aen_code, 5226 uint32_t data_size, uint8_t *data) 5227 { 5228 struct qla4_work_evt *e; 5229 5230 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5231 if (!e) 5232 return QLA_ERROR; 5233 5234 e->u.aen.code = aen_code; 5235 e->u.aen.data_size = data_size; 5236 memcpy(e->u.aen.data, data, data_size); 5237 5238 qla4xxx_post_work(ha, e); 5239 5240 return QLA_SUCCESS; 5241 } 5242 5243 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5244 uint32_t status, uint32_t pid, 5245 uint32_t data_size, uint8_t *data) 5246 { 5247 struct qla4_work_evt *e; 5248 5249 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5250 if (!e) 5251 return QLA_ERROR; 5252 5253 e->u.ping.status = status; 5254 e->u.ping.pid = pid; 5255 e->u.ping.data_size = data_size; 5256 memcpy(e->u.ping.data, data, data_size); 5257 5258 qla4xxx_post_work(ha, e); 5259 5260 return QLA_SUCCESS; 5261 } 5262 5263 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5264 { 5265 struct qla4_work_evt *e, *tmp; 5266 unsigned long flags; 5267 LIST_HEAD(work); 5268 5269 spin_lock_irqsave(&ha->work_lock, flags); 5270 list_splice_init(&ha->work_list, &work); 5271 spin_unlock_irqrestore(&ha->work_lock, flags); 5272 5273 list_for_each_entry_safe(e, tmp, &work, list) { 5274 list_del_init(&e->list); 5275 5276 switch (e->type) { 5277 case QLA4_EVENT_AEN: 5278 iscsi_post_host_event(ha->host_no, 5279 &qla4xxx_iscsi_transport, 5280 e->u.aen.code, 5281 e->u.aen.data_size, 5282 e->u.aen.data); 5283 break; 5284 case QLA4_EVENT_PING_STATUS: 5285 iscsi_ping_comp_event(ha->host_no, 5286 &qla4xxx_iscsi_transport, 5287 e->u.ping.status, 5288 e->u.ping.pid, 5289 e->u.ping.data_size, 5290 e->u.ping.data); 5291 break; 5292 default: 5293 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5294 "supported", e->type); 5295 } 5296 kfree(e); 5297 } 5298 } 5299 5300 /** 5301 * qla4xxx_do_dpc - dpc routine 5302 * @work: Context to obtain pointer to host adapter structure. 5303 * 5304 * This routine is a task that is schedule by the interrupt handler 5305 * to perform the background processing for interrupts. We put it 5306 * on a task queue that is consumed whenever the scheduler runs; that's 5307 * so you can do anything (i.e. put the process to sleep etc). In fact, 5308 * the mid-level tries to sleep when it reaches the driver threshold 5309 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5310 **/ 5311 static void qla4xxx_do_dpc(struct work_struct *work) 5312 { 5313 struct scsi_qla_host *ha = 5314 container_of(work, struct scsi_qla_host, dpc_work); 5315 int status = QLA_ERROR; 5316 5317 DEBUG2(ql4_printk(KERN_INFO, ha, 5318 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5319 ha->host_no, __func__, ha->flags, ha->dpc_flags)); 5320 5321 /* Initialization not yet finished. Don't do anything yet. */ 5322 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5323 return; 5324 5325 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5326 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5327 ha->host_no, __func__, ha->flags)); 5328 return; 5329 } 5330 5331 /* post events to application */ 5332 qla4xxx_do_work(ha); 5333 5334 if (is_qla80XX(ha)) { 5335 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5336 if (is_qla8032(ha) || is_qla8042(ha)) { 5337 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5338 __func__); 5339 /* disable pause frame for ISP83xx */ 5340 qla4_83xx_disable_pause(ha); 5341 } 5342 5343 ha->isp_ops->idc_lock(ha); 5344 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5345 QLA8XXX_DEV_FAILED); 5346 ha->isp_ops->idc_unlock(ha); 5347 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5348 qla4_8xxx_device_state_handler(ha); 5349 } 5350 5351 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5352 if (is_qla8042(ha)) { 5353 if (ha->idc_info.info2 & 5354 ENABLE_INTERNAL_LOOPBACK) { 5355 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5356 __func__); 5357 status = qla4_84xx_config_acb(ha, 5358 ACB_CONFIG_DISABLE); 5359 if (status != QLA_SUCCESS) { 5360 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5361 __func__); 5362 } 5363 } 5364 } 5365 qla4_83xx_post_idc_ack(ha); 5366 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5367 } 5368 5369 if (is_qla8042(ha) && 5370 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5371 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5372 __func__); 5373 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5374 QLA_SUCCESS) { 5375 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5376 __func__); 5377 } 5378 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5379 } 5380 5381 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5382 qla4_8xxx_need_qsnt_handler(ha); 5383 } 5384 } 5385 5386 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5387 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5388 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5389 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5390 if ((is_qla8022(ha) && ql4xdontresethba) || 5391 ((is_qla8032(ha) || is_qla8042(ha)) && 5392 qla4_83xx_idc_dontreset(ha))) { 5393 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5394 ha->host_no, __func__)); 5395 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5396 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5397 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5398 goto dpc_post_reset_ha; 5399 } 5400 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5401 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5402 qla4xxx_recover_adapter(ha); 5403 5404 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5405 uint8_t wait_time = RESET_INTR_TOV; 5406 5407 while ((readw(&ha->reg->ctrl_status) & 5408 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5409 if (--wait_time == 0) 5410 break; 5411 msleep(1000); 5412 } 5413 if (wait_time == 0) 5414 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5415 "bit not cleared-- resetting\n", 5416 ha->host_no, __func__)); 5417 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5418 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5419 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5420 status = qla4xxx_recover_adapter(ha); 5421 } 5422 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5423 if (status == QLA_SUCCESS) 5424 ha->isp_ops->enable_intrs(ha); 5425 } 5426 } 5427 5428 dpc_post_reset_ha: 5429 /* ---- process AEN? --- */ 5430 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5431 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5432 5433 /* ---- Get DHCP IP Address? --- */ 5434 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5435 qla4xxx_get_dhcp_ip_address(ha); 5436 5437 /* ---- relogin device? --- */ 5438 if (adapter_up(ha) && 5439 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5440 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5441 } 5442 5443 /* ---- link change? --- */ 5444 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5445 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5446 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5447 /* ---- link down? --- */ 5448 qla4xxx_mark_all_devices_missing(ha); 5449 } else { 5450 /* ---- link up? --- * 5451 * F/W will auto login to all devices ONLY ONCE after 5452 * link up during driver initialization and runtime 5453 * fatal error recovery. Therefore, the driver must 5454 * manually relogin to devices when recovering from 5455 * connection failures, logouts, expired KATO, etc. */ 5456 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5457 qla4xxx_build_ddb_list(ha, ha->is_reset); 5458 iscsi_host_for_each_session(ha->host, 5459 qla4xxx_login_flash_ddb); 5460 } else 5461 qla4xxx_relogin_all_devices(ha); 5462 } 5463 } 5464 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) { 5465 if (qla4xxx_sysfs_ddb_export(ha)) 5466 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n", 5467 __func__); 5468 } 5469 } 5470 5471 /** 5472 * qla4xxx_free_adapter - release the adapter 5473 * @ha: pointer to adapter structure 5474 **/ 5475 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5476 { 5477 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5478 5479 /* Turn-off interrupts on the card. */ 5480 ha->isp_ops->disable_intrs(ha); 5481 5482 if (is_qla40XX(ha)) { 5483 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5484 &ha->reg->ctrl_status); 5485 readl(&ha->reg->ctrl_status); 5486 } else if (is_qla8022(ha)) { 5487 writel(0, &ha->qla4_82xx_reg->host_int); 5488 readl(&ha->qla4_82xx_reg->host_int); 5489 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5490 writel(0, &ha->qla4_83xx_reg->risc_intr); 5491 readl(&ha->qla4_83xx_reg->risc_intr); 5492 } 5493 5494 /* Remove timer thread, if present */ 5495 if (ha->timer_active) 5496 qla4xxx_stop_timer(ha); 5497 5498 /* Kill the kernel thread for this host */ 5499 if (ha->dpc_thread) 5500 destroy_workqueue(ha->dpc_thread); 5501 5502 /* Kill the kernel thread for this host */ 5503 if (ha->task_wq) 5504 destroy_workqueue(ha->task_wq); 5505 5506 /* Put firmware in known state */ 5507 ha->isp_ops->reset_firmware(ha); 5508 5509 if (is_qla80XX(ha)) { 5510 ha->isp_ops->idc_lock(ha); 5511 qla4_8xxx_clear_drv_active(ha); 5512 ha->isp_ops->idc_unlock(ha); 5513 } 5514 5515 /* Detach interrupts */ 5516 qla4xxx_free_irqs(ha); 5517 5518 /* free extra memory */ 5519 qla4xxx_mem_free(ha); 5520 } 5521 5522 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5523 { 5524 int status = 0; 5525 unsigned long mem_base, mem_len; 5526 struct pci_dev *pdev = ha->pdev; 5527 5528 status = pci_request_regions(pdev, DRIVER_NAME); 5529 if (status) { 5530 printk(KERN_WARNING 5531 "scsi(%ld) Failed to reserve PIO regions (%s) " 5532 "status=%d\n", ha->host_no, pci_name(pdev), status); 5533 goto iospace_error_exit; 5534 } 5535 5536 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5537 __func__, pdev->revision)); 5538 ha->revision_id = pdev->revision; 5539 5540 /* remap phys address */ 5541 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5542 mem_len = pci_resource_len(pdev, 0); 5543 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5544 __func__, mem_base, mem_len)); 5545 5546 /* mapping of pcibase pointer */ 5547 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5548 if (!ha->nx_pcibase) { 5549 printk(KERN_ERR 5550 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5551 pci_release_regions(ha->pdev); 5552 goto iospace_error_exit; 5553 } 5554 5555 /* Mapping of IO base pointer, door bell read and write pointer */ 5556 5557 /* mapping of IO base pointer */ 5558 if (is_qla8022(ha)) { 5559 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5560 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5561 (ha->pdev->devfn << 11)); 5562 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5563 QLA82XX_CAM_RAM_DB2); 5564 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5565 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5566 ((uint8_t *)ha->nx_pcibase); 5567 } 5568 5569 return 0; 5570 iospace_error_exit: 5571 return -ENOMEM; 5572 } 5573 5574 /*** 5575 * qla4xxx_iospace_config - maps registers 5576 * @ha: pointer to adapter structure 5577 * 5578 * This routines maps HBA's registers from the pci address space 5579 * into the kernel virtual address space for memory mapped i/o. 5580 **/ 5581 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5582 { 5583 unsigned long pio, pio_len, pio_flags; 5584 unsigned long mmio, mmio_len, mmio_flags; 5585 5586 pio = pci_resource_start(ha->pdev, 0); 5587 pio_len = pci_resource_len(ha->pdev, 0); 5588 pio_flags = pci_resource_flags(ha->pdev, 0); 5589 if (pio_flags & IORESOURCE_IO) { 5590 if (pio_len < MIN_IOBASE_LEN) { 5591 ql4_printk(KERN_WARNING, ha, 5592 "Invalid PCI I/O region size\n"); 5593 pio = 0; 5594 } 5595 } else { 5596 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5597 pio = 0; 5598 } 5599 5600 /* Use MMIO operations for all accesses. */ 5601 mmio = pci_resource_start(ha->pdev, 1); 5602 mmio_len = pci_resource_len(ha->pdev, 1); 5603 mmio_flags = pci_resource_flags(ha->pdev, 1); 5604 5605 if (!(mmio_flags & IORESOURCE_MEM)) { 5606 ql4_printk(KERN_ERR, ha, 5607 "region #0 not an MMIO resource, aborting\n"); 5608 5609 goto iospace_error_exit; 5610 } 5611 5612 if (mmio_len < MIN_IOBASE_LEN) { 5613 ql4_printk(KERN_ERR, ha, 5614 "Invalid PCI mem region size, aborting\n"); 5615 goto iospace_error_exit; 5616 } 5617 5618 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5619 ql4_printk(KERN_WARNING, ha, 5620 "Failed to reserve PIO/MMIO regions\n"); 5621 5622 goto iospace_error_exit; 5623 } 5624 5625 ha->pio_address = pio; 5626 ha->pio_length = pio_len; 5627 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5628 if (!ha->reg) { 5629 ql4_printk(KERN_ERR, ha, 5630 "cannot remap MMIO, aborting\n"); 5631 5632 goto iospace_error_exit; 5633 } 5634 5635 return 0; 5636 5637 iospace_error_exit: 5638 return -ENOMEM; 5639 } 5640 5641 static struct isp_operations qla4xxx_isp_ops = { 5642 .iospace_config = qla4xxx_iospace_config, 5643 .pci_config = qla4xxx_pci_config, 5644 .disable_intrs = qla4xxx_disable_intrs, 5645 .enable_intrs = qla4xxx_enable_intrs, 5646 .start_firmware = qla4xxx_start_firmware, 5647 .intr_handler = qla4xxx_intr_handler, 5648 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5649 .reset_chip = qla4xxx_soft_reset, 5650 .reset_firmware = qla4xxx_hw_reset, 5651 .queue_iocb = qla4xxx_queue_iocb, 5652 .complete_iocb = qla4xxx_complete_iocb, 5653 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5654 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5655 .get_sys_info = qla4xxx_get_sys_info, 5656 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5657 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5658 }; 5659 5660 static struct isp_operations qla4_82xx_isp_ops = { 5661 .iospace_config = qla4_8xxx_iospace_config, 5662 .pci_config = qla4_8xxx_pci_config, 5663 .disable_intrs = qla4_82xx_disable_intrs, 5664 .enable_intrs = qla4_82xx_enable_intrs, 5665 .start_firmware = qla4_8xxx_load_risc, 5666 .restart_firmware = qla4_82xx_try_start_fw, 5667 .intr_handler = qla4_82xx_intr_handler, 5668 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5669 .need_reset = qla4_8xxx_need_reset, 5670 .reset_chip = qla4_82xx_isp_reset, 5671 .reset_firmware = qla4_8xxx_stop_firmware, 5672 .queue_iocb = qla4_82xx_queue_iocb, 5673 .complete_iocb = qla4_82xx_complete_iocb, 5674 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5675 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5676 .get_sys_info = qla4_8xxx_get_sys_info, 5677 .rd_reg_direct = qla4_82xx_rd_32, 5678 .wr_reg_direct = qla4_82xx_wr_32, 5679 .rd_reg_indirect = qla4_82xx_md_rd_32, 5680 .wr_reg_indirect = qla4_82xx_md_wr_32, 5681 .idc_lock = qla4_82xx_idc_lock, 5682 .idc_unlock = qla4_82xx_idc_unlock, 5683 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5684 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5685 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5686 }; 5687 5688 static struct isp_operations qla4_83xx_isp_ops = { 5689 .iospace_config = qla4_8xxx_iospace_config, 5690 .pci_config = qla4_8xxx_pci_config, 5691 .disable_intrs = qla4_83xx_disable_intrs, 5692 .enable_intrs = qla4_83xx_enable_intrs, 5693 .start_firmware = qla4_8xxx_load_risc, 5694 .restart_firmware = qla4_83xx_start_firmware, 5695 .intr_handler = qla4_83xx_intr_handler, 5696 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5697 .need_reset = qla4_8xxx_need_reset, 5698 .reset_chip = qla4_83xx_isp_reset, 5699 .reset_firmware = qla4_8xxx_stop_firmware, 5700 .queue_iocb = qla4_83xx_queue_iocb, 5701 .complete_iocb = qla4_83xx_complete_iocb, 5702 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5703 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5704 .get_sys_info = qla4_8xxx_get_sys_info, 5705 .rd_reg_direct = qla4_83xx_rd_reg, 5706 .wr_reg_direct = qla4_83xx_wr_reg, 5707 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5708 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5709 .idc_lock = qla4_83xx_drv_lock, 5710 .idc_unlock = qla4_83xx_drv_unlock, 5711 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5712 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5713 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5714 }; 5715 5716 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5717 { 5718 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5719 } 5720 5721 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5722 { 5723 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5724 } 5725 5726 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5727 { 5728 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5729 } 5730 5731 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5732 { 5733 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5734 } 5735 5736 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5737 { 5738 struct scsi_qla_host *ha = data; 5739 char *str = buf; 5740 int rc; 5741 5742 switch (type) { 5743 case ISCSI_BOOT_ETH_FLAGS: 5744 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5745 break; 5746 case ISCSI_BOOT_ETH_INDEX: 5747 rc = sprintf(str, "0\n"); 5748 break; 5749 case ISCSI_BOOT_ETH_MAC: 5750 rc = sysfs_format_mac(str, ha->my_mac, 5751 MAC_ADDR_LEN); 5752 break; 5753 default: 5754 rc = -ENOSYS; 5755 break; 5756 } 5757 return rc; 5758 } 5759 5760 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5761 { 5762 int rc; 5763 5764 switch (type) { 5765 case ISCSI_BOOT_ETH_FLAGS: 5766 case ISCSI_BOOT_ETH_MAC: 5767 case ISCSI_BOOT_ETH_INDEX: 5768 rc = S_IRUGO; 5769 break; 5770 default: 5771 rc = 0; 5772 break; 5773 } 5774 return rc; 5775 } 5776 5777 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5778 { 5779 struct scsi_qla_host *ha = data; 5780 char *str = buf; 5781 int rc; 5782 5783 switch (type) { 5784 case ISCSI_BOOT_INI_INITIATOR_NAME: 5785 rc = sprintf(str, "%s\n", ha->name_string); 5786 break; 5787 default: 5788 rc = -ENOSYS; 5789 break; 5790 } 5791 return rc; 5792 } 5793 5794 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5795 { 5796 int rc; 5797 5798 switch (type) { 5799 case ISCSI_BOOT_INI_INITIATOR_NAME: 5800 rc = S_IRUGO; 5801 break; 5802 default: 5803 rc = 0; 5804 break; 5805 } 5806 return rc; 5807 } 5808 5809 static ssize_t 5810 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5811 char *buf) 5812 { 5813 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5814 char *str = buf; 5815 int rc; 5816 5817 switch (type) { 5818 case ISCSI_BOOT_TGT_NAME: 5819 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5820 break; 5821 case ISCSI_BOOT_TGT_IP_ADDR: 5822 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5823 rc = sprintf(buf, "%pI4\n", 5824 &boot_conn->dest_ipaddr.ip_address); 5825 else 5826 rc = sprintf(str, "%pI6\n", 5827 &boot_conn->dest_ipaddr.ip_address); 5828 break; 5829 case ISCSI_BOOT_TGT_PORT: 5830 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5831 break; 5832 case ISCSI_BOOT_TGT_CHAP_NAME: 5833 rc = sprintf(str, "%.*s\n", 5834 boot_conn->chap.target_chap_name_length, 5835 (char *)&boot_conn->chap.target_chap_name); 5836 break; 5837 case ISCSI_BOOT_TGT_CHAP_SECRET: 5838 rc = sprintf(str, "%.*s\n", 5839 boot_conn->chap.target_secret_length, 5840 (char *)&boot_conn->chap.target_secret); 5841 break; 5842 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5843 rc = sprintf(str, "%.*s\n", 5844 boot_conn->chap.intr_chap_name_length, 5845 (char *)&boot_conn->chap.intr_chap_name); 5846 break; 5847 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5848 rc = sprintf(str, "%.*s\n", 5849 boot_conn->chap.intr_secret_length, 5850 (char *)&boot_conn->chap.intr_secret); 5851 break; 5852 case ISCSI_BOOT_TGT_FLAGS: 5853 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5854 break; 5855 case ISCSI_BOOT_TGT_NIC_ASSOC: 5856 rc = sprintf(str, "0\n"); 5857 break; 5858 default: 5859 rc = -ENOSYS; 5860 break; 5861 } 5862 return rc; 5863 } 5864 5865 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 5866 { 5867 struct scsi_qla_host *ha = data; 5868 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 5869 5870 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5871 } 5872 5873 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5874 { 5875 struct scsi_qla_host *ha = data; 5876 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5877 5878 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5879 } 5880 5881 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5882 { 5883 int rc; 5884 5885 switch (type) { 5886 case ISCSI_BOOT_TGT_NAME: 5887 case ISCSI_BOOT_TGT_IP_ADDR: 5888 case ISCSI_BOOT_TGT_PORT: 5889 case ISCSI_BOOT_TGT_CHAP_NAME: 5890 case ISCSI_BOOT_TGT_CHAP_SECRET: 5891 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5892 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5893 case ISCSI_BOOT_TGT_NIC_ASSOC: 5894 case ISCSI_BOOT_TGT_FLAGS: 5895 rc = S_IRUGO; 5896 break; 5897 default: 5898 rc = 0; 5899 break; 5900 } 5901 return rc; 5902 } 5903 5904 static void qla4xxx_boot_release(void *data) 5905 { 5906 struct scsi_qla_host *ha = data; 5907 5908 scsi_host_put(ha->host); 5909 } 5910 5911 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5912 { 5913 dma_addr_t buf_dma; 5914 uint32_t addr, pri_addr, sec_addr; 5915 uint32_t offset; 5916 uint16_t func_num; 5917 uint8_t val; 5918 uint8_t *buf = NULL; 5919 size_t size = 13 * sizeof(uint8_t); 5920 int ret = QLA_SUCCESS; 5921 5922 func_num = PCI_FUNC(ha->pdev->devfn); 5923 5924 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5925 __func__, ha->pdev->device, func_num); 5926 5927 if (is_qla40XX(ha)) { 5928 if (func_num == 1) { 5929 addr = NVRAM_PORT0_BOOT_MODE; 5930 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5931 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5932 } else if (func_num == 3) { 5933 addr = NVRAM_PORT1_BOOT_MODE; 5934 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5935 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5936 } else { 5937 ret = QLA_ERROR; 5938 goto exit_boot_info; 5939 } 5940 5941 /* Check Boot Mode */ 5942 val = rd_nvram_byte(ha, addr); 5943 if (!(val & 0x07)) { 5944 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5945 "options : 0x%x\n", __func__, val)); 5946 ret = QLA_ERROR; 5947 goto exit_boot_info; 5948 } 5949 5950 /* get primary valid target index */ 5951 val = rd_nvram_byte(ha, pri_addr); 5952 if (val & BIT_7) 5953 ddb_index[0] = (val & 0x7f); 5954 5955 /* get secondary valid target index */ 5956 val = rd_nvram_byte(ha, sec_addr); 5957 if (val & BIT_7) 5958 ddb_index[1] = (val & 0x7f); 5959 goto exit_boot_info; 5960 } else if (is_qla80XX(ha)) { 5961 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5962 &buf_dma, GFP_KERNEL); 5963 if (!buf) { 5964 DEBUG2(ql4_printk(KERN_ERR, ha, 5965 "%s: Unable to allocate dma buffer\n", 5966 __func__)); 5967 ret = QLA_ERROR; 5968 goto exit_boot_info; 5969 } 5970 5971 if (ha->port_num == 0) 5972 offset = BOOT_PARAM_OFFSET_PORT0; 5973 else if (ha->port_num == 1) 5974 offset = BOOT_PARAM_OFFSET_PORT1; 5975 else { 5976 ret = QLA_ERROR; 5977 goto exit_boot_info_free; 5978 } 5979 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5980 offset; 5981 if (qla4xxx_get_flash(ha, buf_dma, addr, 5982 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5983 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5984 " failed\n", ha->host_no, __func__)); 5985 ret = QLA_ERROR; 5986 goto exit_boot_info_free; 5987 } 5988 /* Check Boot Mode */ 5989 if (!(buf[1] & 0x07)) { 5990 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5991 " : 0x%x\n", buf[1])); 5992 ret = QLA_ERROR; 5993 goto exit_boot_info_free; 5994 } 5995 5996 /* get primary valid target index */ 5997 if (buf[2] & BIT_7) 5998 ddb_index[0] = buf[2] & 0x7f; 5999 6000 /* get secondary valid target index */ 6001 if (buf[11] & BIT_7) 6002 ddb_index[1] = buf[11] & 0x7f; 6003 } else { 6004 ret = QLA_ERROR; 6005 goto exit_boot_info; 6006 } 6007 6008 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 6009 " target ID %d\n", __func__, ddb_index[0], 6010 ddb_index[1])); 6011 6012 exit_boot_info_free: 6013 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 6014 exit_boot_info: 6015 ha->pri_ddb_idx = ddb_index[0]; 6016 ha->sec_ddb_idx = ddb_index[1]; 6017 return ret; 6018 } 6019 6020 /** 6021 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 6022 * @ha: pointer to adapter structure 6023 * @username: CHAP username to be returned 6024 * @password: CHAP password to be returned 6025 * 6026 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 6027 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 6028 * So from the CHAP cache find the first BIDI CHAP entry and set it 6029 * to the boot record in sysfs. 6030 **/ 6031 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 6032 char *password) 6033 { 6034 int i, ret = -EINVAL; 6035 int max_chap_entries = 0; 6036 struct ql4_chap_table *chap_table; 6037 6038 if (is_qla80XX(ha)) 6039 max_chap_entries = (ha->hw.flt_chap_size / 2) / 6040 sizeof(struct ql4_chap_table); 6041 else 6042 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 6043 6044 if (!ha->chap_list) { 6045 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 6046 return ret; 6047 } 6048 6049 mutex_lock(&ha->chap_sem); 6050 for (i = 0; i < max_chap_entries; i++) { 6051 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 6052 if (chap_table->cookie != 6053 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 6054 continue; 6055 } 6056 6057 if (chap_table->flags & BIT_7) /* local */ 6058 continue; 6059 6060 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6061 continue; 6062 6063 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6064 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6065 ret = 0; 6066 break; 6067 } 6068 mutex_unlock(&ha->chap_sem); 6069 6070 return ret; 6071 } 6072 6073 6074 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6075 struct ql4_boot_session_info *boot_sess, 6076 uint16_t ddb_index) 6077 { 6078 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6079 struct dev_db_entry *fw_ddb_entry; 6080 dma_addr_t fw_ddb_entry_dma; 6081 uint16_t idx; 6082 uint16_t options; 6083 int ret = QLA_SUCCESS; 6084 6085 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6086 &fw_ddb_entry_dma, GFP_KERNEL); 6087 if (!fw_ddb_entry) { 6088 DEBUG2(ql4_printk(KERN_ERR, ha, 6089 "%s: Unable to allocate dma buffer.\n", 6090 __func__)); 6091 ret = QLA_ERROR; 6092 return ret; 6093 } 6094 6095 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6096 fw_ddb_entry_dma, ddb_index)) { 6097 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6098 "index [%d]\n", __func__, ddb_index)); 6099 ret = QLA_ERROR; 6100 goto exit_boot_target; 6101 } 6102 6103 /* Update target name and IP from DDB */ 6104 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6105 min(sizeof(boot_sess->target_name), 6106 sizeof(fw_ddb_entry->iscsi_name))); 6107 6108 options = le16_to_cpu(fw_ddb_entry->options); 6109 if (options & DDB_OPT_IPV6_DEVICE) { 6110 memcpy(&boot_conn->dest_ipaddr.ip_address, 6111 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6112 } else { 6113 boot_conn->dest_ipaddr.ip_type = 0x1; 6114 memcpy(&boot_conn->dest_ipaddr.ip_address, 6115 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6116 } 6117 6118 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6119 6120 /* update chap information */ 6121 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6122 6123 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6124 6125 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6126 6127 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6128 target_chap_name, 6129 (char *)&boot_conn->chap.target_secret, 6130 idx); 6131 if (ret) { 6132 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6133 ret = QLA_ERROR; 6134 goto exit_boot_target; 6135 } 6136 6137 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6138 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6139 } 6140 6141 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6142 6143 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6144 6145 ret = qla4xxx_get_bidi_chap(ha, 6146 (char *)&boot_conn->chap.intr_chap_name, 6147 (char *)&boot_conn->chap.intr_secret); 6148 6149 if (ret) { 6150 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6151 ret = QLA_ERROR; 6152 goto exit_boot_target; 6153 } 6154 6155 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6156 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6157 } 6158 6159 exit_boot_target: 6160 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6161 fw_ddb_entry, fw_ddb_entry_dma); 6162 return ret; 6163 } 6164 6165 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6166 { 6167 uint16_t ddb_index[2]; 6168 int ret = QLA_ERROR; 6169 int rval; 6170 6171 memset(ddb_index, 0, sizeof(ddb_index)); 6172 ddb_index[0] = 0xffff; 6173 ddb_index[1] = 0xffff; 6174 ret = get_fw_boot_info(ha, ddb_index); 6175 if (ret != QLA_SUCCESS) { 6176 DEBUG2(ql4_printk(KERN_INFO, ha, 6177 "%s: No boot target configured.\n", __func__)); 6178 return ret; 6179 } 6180 6181 if (ql4xdisablesysfsboot) 6182 return QLA_SUCCESS; 6183 6184 if (ddb_index[0] == 0xffff) 6185 goto sec_target; 6186 6187 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6188 ddb_index[0]); 6189 if (rval != QLA_SUCCESS) { 6190 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6191 "configured\n", __func__)); 6192 } else 6193 ret = QLA_SUCCESS; 6194 6195 sec_target: 6196 if (ddb_index[1] == 0xffff) 6197 goto exit_get_boot_info; 6198 6199 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6200 ddb_index[1]); 6201 if (rval != QLA_SUCCESS) { 6202 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6203 " configured\n", __func__)); 6204 } else 6205 ret = QLA_SUCCESS; 6206 6207 exit_get_boot_info: 6208 return ret; 6209 } 6210 6211 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6212 { 6213 struct iscsi_boot_kobj *boot_kobj; 6214 6215 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6216 return QLA_ERROR; 6217 6218 if (ql4xdisablesysfsboot) { 6219 ql4_printk(KERN_INFO, ha, 6220 "%s: syfsboot disabled - driver will trigger login " 6221 "and publish session for discovery .\n", __func__); 6222 return QLA_SUCCESS; 6223 } 6224 6225 6226 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6227 if (!ha->boot_kset) 6228 goto kset_free; 6229 6230 if (!scsi_host_get(ha->host)) 6231 goto kset_free; 6232 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6233 qla4xxx_show_boot_tgt_pri_info, 6234 qla4xxx_tgt_get_attr_visibility, 6235 qla4xxx_boot_release); 6236 if (!boot_kobj) 6237 goto put_host; 6238 6239 if (!scsi_host_get(ha->host)) 6240 goto kset_free; 6241 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6242 qla4xxx_show_boot_tgt_sec_info, 6243 qla4xxx_tgt_get_attr_visibility, 6244 qla4xxx_boot_release); 6245 if (!boot_kobj) 6246 goto put_host; 6247 6248 if (!scsi_host_get(ha->host)) 6249 goto kset_free; 6250 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6251 qla4xxx_show_boot_ini_info, 6252 qla4xxx_ini_get_attr_visibility, 6253 qla4xxx_boot_release); 6254 if (!boot_kobj) 6255 goto put_host; 6256 6257 if (!scsi_host_get(ha->host)) 6258 goto kset_free; 6259 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6260 qla4xxx_show_boot_eth_info, 6261 qla4xxx_eth_get_attr_visibility, 6262 qla4xxx_boot_release); 6263 if (!boot_kobj) 6264 goto put_host; 6265 6266 return QLA_SUCCESS; 6267 6268 put_host: 6269 scsi_host_put(ha->host); 6270 kset_free: 6271 iscsi_boot_destroy_kset(ha->boot_kset); 6272 return -ENOMEM; 6273 } 6274 6275 6276 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6277 struct ql4_tuple_ddb *tddb) 6278 { 6279 struct iscsi_cls_session *cls_sess; 6280 struct iscsi_cls_conn *cls_conn; 6281 struct iscsi_session *sess; 6282 struct iscsi_conn *conn; 6283 6284 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6285 cls_sess = ddb_entry->sess; 6286 sess = cls_sess->dd_data; 6287 cls_conn = ddb_entry->conn; 6288 conn = cls_conn->dd_data; 6289 6290 tddb->tpgt = sess->tpgt; 6291 tddb->port = conn->persistent_port; 6292 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 6293 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 6294 } 6295 6296 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6297 struct ql4_tuple_ddb *tddb, 6298 uint8_t *flash_isid) 6299 { 6300 uint16_t options = 0; 6301 6302 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6303 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6304 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6305 6306 options = le16_to_cpu(fw_ddb_entry->options); 6307 if (options & DDB_OPT_IPV6_DEVICE) 6308 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6309 else 6310 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6311 6312 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6313 6314 if (flash_isid == NULL) 6315 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6316 sizeof(tddb->isid)); 6317 else 6318 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6319 } 6320 6321 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6322 struct ql4_tuple_ddb *old_tddb, 6323 struct ql4_tuple_ddb *new_tddb, 6324 uint8_t is_isid_compare) 6325 { 6326 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6327 return QLA_ERROR; 6328 6329 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6330 return QLA_ERROR; 6331 6332 if (old_tddb->port != new_tddb->port) 6333 return QLA_ERROR; 6334 6335 /* For multi sessions, driver generates the ISID, so do not compare 6336 * ISID in reset path since it would be a comparison between the 6337 * driver generated ISID and firmware generated ISID. This could 6338 * lead to adding duplicated DDBs in the list as driver generated 6339 * ISID would not match firmware generated ISID. 6340 */ 6341 if (is_isid_compare) { 6342 DEBUG2(ql4_printk(KERN_INFO, ha, 6343 "%s: old ISID [%pmR] New ISID [%pmR]\n", 6344 __func__, old_tddb->isid, new_tddb->isid)); 6345 6346 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6347 sizeof(old_tddb->isid))) 6348 return QLA_ERROR; 6349 } 6350 6351 DEBUG2(ql4_printk(KERN_INFO, ha, 6352 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6353 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6354 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6355 new_tddb->ip_addr, new_tddb->iscsi_name)); 6356 6357 return QLA_SUCCESS; 6358 } 6359 6360 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6361 struct dev_db_entry *fw_ddb_entry, 6362 uint32_t *index) 6363 { 6364 struct ddb_entry *ddb_entry; 6365 struct ql4_tuple_ddb *fw_tddb = NULL; 6366 struct ql4_tuple_ddb *tmp_tddb = NULL; 6367 int idx; 6368 int ret = QLA_ERROR; 6369 6370 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6371 if (!fw_tddb) { 6372 DEBUG2(ql4_printk(KERN_WARNING, ha, 6373 "Memory Allocation failed.\n")); 6374 ret = QLA_SUCCESS; 6375 goto exit_check; 6376 } 6377 6378 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6379 if (!tmp_tddb) { 6380 DEBUG2(ql4_printk(KERN_WARNING, ha, 6381 "Memory Allocation failed.\n")); 6382 ret = QLA_SUCCESS; 6383 goto exit_check; 6384 } 6385 6386 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6387 6388 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6389 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6390 if (ddb_entry == NULL) 6391 continue; 6392 6393 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6394 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6395 ret = QLA_SUCCESS; /* found */ 6396 if (index != NULL) 6397 *index = idx; 6398 goto exit_check; 6399 } 6400 } 6401 6402 exit_check: 6403 if (fw_tddb) 6404 vfree(fw_tddb); 6405 if (tmp_tddb) 6406 vfree(tmp_tddb); 6407 return ret; 6408 } 6409 6410 /** 6411 * qla4xxx_check_existing_isid - check if target with same isid exist 6412 * in target list 6413 * @list_nt: list of target 6414 * @isid: isid to check 6415 * 6416 * This routine return QLA_SUCCESS if target with same isid exist 6417 **/ 6418 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6419 { 6420 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6421 struct dev_db_entry *fw_ddb_entry; 6422 6423 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6424 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6425 6426 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6427 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6428 return QLA_SUCCESS; 6429 } 6430 } 6431 return QLA_ERROR; 6432 } 6433 6434 /** 6435 * qla4xxx_update_isid - compare ddbs and updated isid 6436 * @ha: Pointer to host adapter structure. 6437 * @list_nt: list of nt target 6438 * @fw_ddb_entry: firmware ddb entry 6439 * 6440 * This routine update isid if ddbs have same iqn, same isid and 6441 * different IP addr. 6442 * Return QLA_SUCCESS if isid is updated. 6443 **/ 6444 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6445 struct list_head *list_nt, 6446 struct dev_db_entry *fw_ddb_entry) 6447 { 6448 uint8_t base_value, i; 6449 6450 base_value = fw_ddb_entry->isid[1] & 0x1f; 6451 for (i = 0; i < 8; i++) { 6452 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6453 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6454 break; 6455 } 6456 6457 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6458 return QLA_ERROR; 6459 6460 return QLA_SUCCESS; 6461 } 6462 6463 /** 6464 * qla4xxx_should_update_isid - check if isid need to update 6465 * @ha: Pointer to host adapter structure. 6466 * @old_tddb: ddb tuple 6467 * @new_tddb: ddb tuple 6468 * 6469 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6470 * same isid 6471 **/ 6472 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6473 struct ql4_tuple_ddb *old_tddb, 6474 struct ql4_tuple_ddb *new_tddb) 6475 { 6476 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6477 /* Same ip */ 6478 if (old_tddb->port == new_tddb->port) 6479 return QLA_ERROR; 6480 } 6481 6482 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6483 /* different iqn */ 6484 return QLA_ERROR; 6485 6486 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6487 sizeof(old_tddb->isid))) 6488 /* different isid */ 6489 return QLA_ERROR; 6490 6491 return QLA_SUCCESS; 6492 } 6493 6494 /** 6495 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6496 * @ha: Pointer to host adapter structure. 6497 * @list_nt: list of nt target. 6498 * @fw_ddb_entry: firmware ddb entry. 6499 * 6500 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6501 * duplicate ddb in list_nt. 6502 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6503 * Note: This function also update isid of DDB if required. 6504 **/ 6505 6506 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6507 struct list_head *list_nt, 6508 struct dev_db_entry *fw_ddb_entry) 6509 { 6510 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6511 struct ql4_tuple_ddb *fw_tddb = NULL; 6512 struct ql4_tuple_ddb *tmp_tddb = NULL; 6513 int rval, ret = QLA_ERROR; 6514 6515 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6516 if (!fw_tddb) { 6517 DEBUG2(ql4_printk(KERN_WARNING, ha, 6518 "Memory Allocation failed.\n")); 6519 ret = QLA_SUCCESS; 6520 goto exit_check; 6521 } 6522 6523 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6524 if (!tmp_tddb) { 6525 DEBUG2(ql4_printk(KERN_WARNING, ha, 6526 "Memory Allocation failed.\n")); 6527 ret = QLA_SUCCESS; 6528 goto exit_check; 6529 } 6530 6531 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6532 6533 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6534 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6535 nt_ddb_idx->flash_isid); 6536 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6537 /* found duplicate ddb */ 6538 if (ret == QLA_SUCCESS) 6539 goto exit_check; 6540 } 6541 6542 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6543 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6544 6545 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6546 if (ret == QLA_SUCCESS) { 6547 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6548 if (rval == QLA_SUCCESS) 6549 ret = QLA_ERROR; 6550 else 6551 ret = QLA_SUCCESS; 6552 6553 goto exit_check; 6554 } 6555 } 6556 6557 exit_check: 6558 if (fw_tddb) 6559 vfree(fw_tddb); 6560 if (tmp_tddb) 6561 vfree(tmp_tddb); 6562 return ret; 6563 } 6564 6565 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6566 { 6567 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6568 6569 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6570 list_del_init(&ddb_idx->list); 6571 vfree(ddb_idx); 6572 } 6573 } 6574 6575 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6576 struct dev_db_entry *fw_ddb_entry) 6577 { 6578 struct iscsi_endpoint *ep; 6579 struct sockaddr_in *addr; 6580 struct sockaddr_in6 *addr6; 6581 struct sockaddr *t_addr; 6582 struct sockaddr_storage *dst_addr; 6583 char *ip; 6584 6585 /* TODO: need to destroy on unload iscsi_endpoint*/ 6586 dst_addr = vmalloc(sizeof(*dst_addr)); 6587 if (!dst_addr) 6588 return NULL; 6589 6590 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6591 t_addr = (struct sockaddr *)dst_addr; 6592 t_addr->sa_family = AF_INET6; 6593 addr6 = (struct sockaddr_in6 *)dst_addr; 6594 ip = (char *)&addr6->sin6_addr; 6595 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6596 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6597 6598 } else { 6599 t_addr = (struct sockaddr *)dst_addr; 6600 t_addr->sa_family = AF_INET; 6601 addr = (struct sockaddr_in *)dst_addr; 6602 ip = (char *)&addr->sin_addr; 6603 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6604 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6605 } 6606 6607 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6608 vfree(dst_addr); 6609 return ep; 6610 } 6611 6612 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6613 { 6614 if (ql4xdisablesysfsboot) 6615 return QLA_SUCCESS; 6616 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6617 return QLA_ERROR; 6618 return QLA_SUCCESS; 6619 } 6620 6621 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6622 struct ddb_entry *ddb_entry, 6623 uint16_t idx) 6624 { 6625 uint16_t def_timeout; 6626 6627 ddb_entry->ddb_type = FLASH_DDB; 6628 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6629 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6630 ddb_entry->ha = ha; 6631 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6632 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6633 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6634 6635 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6636 atomic_set(&ddb_entry->relogin_timer, 0); 6637 atomic_set(&ddb_entry->relogin_retry_count, 0); 6638 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6639 ddb_entry->default_relogin_timeout = 6640 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6641 def_timeout : LOGIN_TOV; 6642 ddb_entry->default_time2wait = 6643 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6644 6645 if (ql4xdisablesysfsboot && 6646 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6647 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6648 } 6649 6650 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6651 { 6652 uint32_t idx = 0; 6653 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6654 uint32_t sts[MBOX_REG_COUNT]; 6655 uint32_t ip_state; 6656 unsigned long wtime; 6657 int ret; 6658 6659 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6660 do { 6661 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6662 if (ip_idx[idx] == -1) 6663 continue; 6664 6665 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6666 6667 if (ret == QLA_ERROR) { 6668 ip_idx[idx] = -1; 6669 continue; 6670 } 6671 6672 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6673 6674 DEBUG2(ql4_printk(KERN_INFO, ha, 6675 "Waiting for IP state for idx = %d, state = 0x%x\n", 6676 ip_idx[idx], ip_state)); 6677 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6678 ip_state == IP_ADDRSTATE_INVALID || 6679 ip_state == IP_ADDRSTATE_PREFERRED || 6680 ip_state == IP_ADDRSTATE_DEPRICATED || 6681 ip_state == IP_ADDRSTATE_DISABLING) 6682 ip_idx[idx] = -1; 6683 } 6684 6685 /* Break if all IP states checked */ 6686 if ((ip_idx[0] == -1) && 6687 (ip_idx[1] == -1) && 6688 (ip_idx[2] == -1) && 6689 (ip_idx[3] == -1)) 6690 break; 6691 schedule_timeout_uninterruptible(HZ); 6692 } while (time_after(wtime, jiffies)); 6693 } 6694 6695 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6696 struct dev_db_entry *flash_ddb_entry) 6697 { 6698 uint16_t options = 0; 6699 size_t ip_len = IP_ADDR_LEN; 6700 6701 options = le16_to_cpu(fw_ddb_entry->options); 6702 if (options & DDB_OPT_IPV6_DEVICE) 6703 ip_len = IPv6_ADDR_LEN; 6704 6705 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6706 return QLA_ERROR; 6707 6708 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6709 sizeof(fw_ddb_entry->isid))) 6710 return QLA_ERROR; 6711 6712 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6713 sizeof(fw_ddb_entry->port))) 6714 return QLA_ERROR; 6715 6716 return QLA_SUCCESS; 6717 } 6718 6719 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6720 struct dev_db_entry *fw_ddb_entry, 6721 uint32_t fw_idx, uint32_t *flash_index) 6722 { 6723 struct dev_db_entry *flash_ddb_entry; 6724 dma_addr_t flash_ddb_entry_dma; 6725 uint32_t idx = 0; 6726 int max_ddbs; 6727 int ret = QLA_ERROR, status; 6728 6729 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6730 MAX_DEV_DB_ENTRIES; 6731 6732 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6733 &flash_ddb_entry_dma); 6734 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6735 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6736 goto exit_find_st_idx; 6737 } 6738 6739 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6740 flash_ddb_entry_dma, fw_idx); 6741 if (status == QLA_SUCCESS) { 6742 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6743 if (status == QLA_SUCCESS) { 6744 *flash_index = fw_idx; 6745 ret = QLA_SUCCESS; 6746 goto exit_find_st_idx; 6747 } 6748 } 6749 6750 for (idx = 0; idx < max_ddbs; idx++) { 6751 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6752 flash_ddb_entry_dma, idx); 6753 if (status == QLA_ERROR) 6754 continue; 6755 6756 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6757 if (status == QLA_SUCCESS) { 6758 *flash_index = idx; 6759 ret = QLA_SUCCESS; 6760 goto exit_find_st_idx; 6761 } 6762 } 6763 6764 if (idx == max_ddbs) 6765 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6766 fw_idx); 6767 6768 exit_find_st_idx: 6769 if (flash_ddb_entry) 6770 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6771 flash_ddb_entry_dma); 6772 6773 return ret; 6774 } 6775 6776 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6777 struct list_head *list_st) 6778 { 6779 struct qla_ddb_index *st_ddb_idx; 6780 int max_ddbs; 6781 int fw_idx_size; 6782 struct dev_db_entry *fw_ddb_entry; 6783 dma_addr_t fw_ddb_dma; 6784 int ret; 6785 uint32_t idx = 0, next_idx = 0; 6786 uint32_t state = 0, conn_err = 0; 6787 uint32_t flash_index = -1; 6788 uint16_t conn_id = 0; 6789 6790 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6791 &fw_ddb_dma); 6792 if (fw_ddb_entry == NULL) { 6793 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6794 goto exit_st_list; 6795 } 6796 6797 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6798 MAX_DEV_DB_ENTRIES; 6799 fw_idx_size = sizeof(struct qla_ddb_index); 6800 6801 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6802 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6803 NULL, &next_idx, &state, 6804 &conn_err, NULL, &conn_id); 6805 if (ret == QLA_ERROR) 6806 break; 6807 6808 /* Ignore DDB if invalid state (unassigned) */ 6809 if (state == DDB_DS_UNASSIGNED) 6810 goto continue_next_st; 6811 6812 /* Check if ST, add to the list_st */ 6813 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6814 goto continue_next_st; 6815 6816 st_ddb_idx = vzalloc(fw_idx_size); 6817 if (!st_ddb_idx) 6818 break; 6819 6820 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6821 &flash_index); 6822 if (ret == QLA_ERROR) { 6823 ql4_printk(KERN_ERR, ha, 6824 "No flash entry for ST at idx [%d]\n", idx); 6825 st_ddb_idx->flash_ddb_idx = idx; 6826 } else { 6827 ql4_printk(KERN_INFO, ha, 6828 "ST at idx [%d] is stored at flash [%d]\n", 6829 idx, flash_index); 6830 st_ddb_idx->flash_ddb_idx = flash_index; 6831 } 6832 6833 st_ddb_idx->fw_ddb_idx = idx; 6834 6835 list_add_tail(&st_ddb_idx->list, list_st); 6836 continue_next_st: 6837 if (next_idx == 0) 6838 break; 6839 } 6840 6841 exit_st_list: 6842 if (fw_ddb_entry) 6843 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6844 } 6845 6846 /** 6847 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6848 * @ha: pointer to adapter structure 6849 * @list_ddb: List from which failed ddb to be removed 6850 * 6851 * Iterate over the list of DDBs and find and remove DDBs that are either in 6852 * no connection active state or failed state 6853 **/ 6854 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6855 struct list_head *list_ddb) 6856 { 6857 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6858 uint32_t next_idx = 0; 6859 uint32_t state = 0, conn_err = 0; 6860 int ret; 6861 6862 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6863 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6864 NULL, 0, NULL, &next_idx, &state, 6865 &conn_err, NULL, NULL); 6866 if (ret == QLA_ERROR) 6867 continue; 6868 6869 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6870 state == DDB_DS_SESSION_FAILED) { 6871 list_del_init(&ddb_idx->list); 6872 vfree(ddb_idx); 6873 } 6874 } 6875 } 6876 6877 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6878 struct ddb_entry *ddb_entry, 6879 struct dev_db_entry *fw_ddb_entry) 6880 { 6881 struct iscsi_cls_session *cls_sess; 6882 struct iscsi_session *sess; 6883 uint32_t max_ddbs = 0; 6884 uint16_t ddb_link = -1; 6885 6886 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6887 MAX_DEV_DB_ENTRIES; 6888 6889 cls_sess = ddb_entry->sess; 6890 sess = cls_sess->dd_data; 6891 6892 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6893 if (ddb_link < max_ddbs) 6894 sess->discovery_parent_idx = ddb_link; 6895 else 6896 sess->discovery_parent_idx = DDB_NO_LINK; 6897 } 6898 6899 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6900 struct dev_db_entry *fw_ddb_entry, 6901 int is_reset, uint16_t idx) 6902 { 6903 struct iscsi_cls_session *cls_sess; 6904 struct iscsi_session *sess; 6905 struct iscsi_cls_conn *cls_conn; 6906 struct iscsi_endpoint *ep; 6907 uint16_t cmds_max = 32; 6908 uint16_t conn_id = 0; 6909 uint32_t initial_cmdsn = 0; 6910 int ret = QLA_SUCCESS; 6911 6912 struct ddb_entry *ddb_entry = NULL; 6913 6914 /* Create session object, with INVALID_ENTRY, 6915 * the targer_id would get set when we issue the login 6916 */ 6917 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6918 cmds_max, sizeof(struct ddb_entry), 6919 sizeof(struct ql4_task_data), 6920 initial_cmdsn, INVALID_ENTRY); 6921 if (!cls_sess) { 6922 ret = QLA_ERROR; 6923 goto exit_setup; 6924 } 6925 6926 /* 6927 * so calling module_put function to decrement the 6928 * reference count. 6929 **/ 6930 module_put(qla4xxx_iscsi_transport.owner); 6931 sess = cls_sess->dd_data; 6932 ddb_entry = sess->dd_data; 6933 ddb_entry->sess = cls_sess; 6934 6935 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6936 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6937 sizeof(struct dev_db_entry)); 6938 6939 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6940 6941 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6942 6943 if (!cls_conn) { 6944 ret = QLA_ERROR; 6945 goto exit_setup; 6946 } 6947 6948 ddb_entry->conn = cls_conn; 6949 6950 /* Setup ep, for displaying attributes in sysfs */ 6951 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6952 if (ep) { 6953 ep->conn = cls_conn; 6954 cls_conn->ep = ep; 6955 } else { 6956 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6957 ret = QLA_ERROR; 6958 goto exit_setup; 6959 } 6960 6961 /* Update sess/conn params */ 6962 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6963 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6964 6965 if (is_reset == RESET_ADAPTER) { 6966 iscsi_block_session(cls_sess); 6967 /* Use the relogin path to discover new devices 6968 * by short-circuting the logic of setting 6969 * timer to relogin - instead set the flags 6970 * to initiate login right away. 6971 */ 6972 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6973 set_bit(DF_RELOGIN, &ddb_entry->flags); 6974 } 6975 6976 exit_setup: 6977 return ret; 6978 } 6979 6980 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6981 struct list_head *list_ddb, 6982 struct dev_db_entry *fw_ddb_entry) 6983 { 6984 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6985 uint16_t ddb_link; 6986 6987 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6988 6989 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6990 if (ddb_idx->fw_ddb_idx == ddb_link) { 6991 DEBUG2(ql4_printk(KERN_INFO, ha, 6992 "Updating NT parent idx from [%d] to [%d]\n", 6993 ddb_link, ddb_idx->flash_ddb_idx)); 6994 fw_ddb_entry->ddb_link = 6995 cpu_to_le16(ddb_idx->flash_ddb_idx); 6996 return; 6997 } 6998 } 6999 } 7000 7001 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 7002 struct list_head *list_nt, 7003 struct list_head *list_st, 7004 int is_reset) 7005 { 7006 struct dev_db_entry *fw_ddb_entry; 7007 struct ddb_entry *ddb_entry = NULL; 7008 dma_addr_t fw_ddb_dma; 7009 int max_ddbs; 7010 int fw_idx_size; 7011 int ret; 7012 uint32_t idx = 0, next_idx = 0; 7013 uint32_t state = 0, conn_err = 0; 7014 uint32_t ddb_idx = -1; 7015 uint16_t conn_id = 0; 7016 uint16_t ddb_link = -1; 7017 struct qla_ddb_index *nt_ddb_idx; 7018 7019 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7020 &fw_ddb_dma); 7021 if (fw_ddb_entry == NULL) { 7022 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7023 goto exit_nt_list; 7024 } 7025 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7026 MAX_DEV_DB_ENTRIES; 7027 fw_idx_size = sizeof(struct qla_ddb_index); 7028 7029 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7030 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7031 NULL, &next_idx, &state, 7032 &conn_err, NULL, &conn_id); 7033 if (ret == QLA_ERROR) 7034 break; 7035 7036 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 7037 goto continue_next_nt; 7038 7039 /* Check if NT, then add to list it */ 7040 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 7041 goto continue_next_nt; 7042 7043 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 7044 if (ddb_link < max_ddbs) 7045 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 7046 7047 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 7048 state == DDB_DS_SESSION_FAILED) && 7049 (is_reset == INIT_ADAPTER)) 7050 goto continue_next_nt; 7051 7052 DEBUG2(ql4_printk(KERN_INFO, ha, 7053 "Adding DDB to session = 0x%x\n", idx)); 7054 7055 if (is_reset == INIT_ADAPTER) { 7056 nt_ddb_idx = vmalloc(fw_idx_size); 7057 if (!nt_ddb_idx) 7058 break; 7059 7060 nt_ddb_idx->fw_ddb_idx = idx; 7061 7062 /* Copy original isid as it may get updated in function 7063 * qla4xxx_update_isid(). We need original isid in 7064 * function qla4xxx_compare_tuple_ddb to find duplicate 7065 * target */ 7066 memcpy(&nt_ddb_idx->flash_isid[0], 7067 &fw_ddb_entry->isid[0], 7068 sizeof(nt_ddb_idx->flash_isid)); 7069 7070 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7071 fw_ddb_entry); 7072 if (ret == QLA_SUCCESS) { 7073 /* free nt_ddb_idx and do not add to list_nt */ 7074 vfree(nt_ddb_idx); 7075 goto continue_next_nt; 7076 } 7077 7078 /* Copy updated isid */ 7079 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7080 sizeof(struct dev_db_entry)); 7081 7082 list_add_tail(&nt_ddb_idx->list, list_nt); 7083 } else if (is_reset == RESET_ADAPTER) { 7084 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7085 &ddb_idx); 7086 if (ret == QLA_SUCCESS) { 7087 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7088 ddb_idx); 7089 if (ddb_entry != NULL) 7090 qla4xxx_update_sess_disc_idx(ha, 7091 ddb_entry, 7092 fw_ddb_entry); 7093 goto continue_next_nt; 7094 } 7095 } 7096 7097 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7098 if (ret == QLA_ERROR) 7099 goto exit_nt_list; 7100 7101 continue_next_nt: 7102 if (next_idx == 0) 7103 break; 7104 } 7105 7106 exit_nt_list: 7107 if (fw_ddb_entry) 7108 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7109 } 7110 7111 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7112 struct list_head *list_nt, 7113 uint16_t target_id) 7114 { 7115 struct dev_db_entry *fw_ddb_entry; 7116 dma_addr_t fw_ddb_dma; 7117 int max_ddbs; 7118 int fw_idx_size; 7119 int ret; 7120 uint32_t idx = 0, next_idx = 0; 7121 uint32_t state = 0, conn_err = 0; 7122 uint16_t conn_id = 0; 7123 struct qla_ddb_index *nt_ddb_idx; 7124 7125 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7126 &fw_ddb_dma); 7127 if (fw_ddb_entry == NULL) { 7128 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7129 goto exit_new_nt_list; 7130 } 7131 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7132 MAX_DEV_DB_ENTRIES; 7133 fw_idx_size = sizeof(struct qla_ddb_index); 7134 7135 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7136 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7137 NULL, &next_idx, &state, 7138 &conn_err, NULL, &conn_id); 7139 if (ret == QLA_ERROR) 7140 break; 7141 7142 /* Check if NT, then add it to list */ 7143 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7144 goto continue_next_new_nt; 7145 7146 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7147 goto continue_next_new_nt; 7148 7149 DEBUG2(ql4_printk(KERN_INFO, ha, 7150 "Adding DDB to session = 0x%x\n", idx)); 7151 7152 nt_ddb_idx = vmalloc(fw_idx_size); 7153 if (!nt_ddb_idx) 7154 break; 7155 7156 nt_ddb_idx->fw_ddb_idx = idx; 7157 7158 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7159 if (ret == QLA_SUCCESS) { 7160 /* free nt_ddb_idx and do not add to list_nt */ 7161 vfree(nt_ddb_idx); 7162 goto continue_next_new_nt; 7163 } 7164 7165 if (target_id < max_ddbs) 7166 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7167 7168 list_add_tail(&nt_ddb_idx->list, list_nt); 7169 7170 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7171 idx); 7172 if (ret == QLA_ERROR) 7173 goto exit_new_nt_list; 7174 7175 continue_next_new_nt: 7176 if (next_idx == 0) 7177 break; 7178 } 7179 7180 exit_new_nt_list: 7181 if (fw_ddb_entry) 7182 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7183 } 7184 7185 /** 7186 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7187 * @dev: dev associated with the sysfs entry 7188 * @data: pointer to flashnode session object 7189 * 7190 * Returns: 7191 * 1: if flashnode entry is non-persistent 7192 * 0: if flashnode entry is persistent 7193 **/ 7194 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) 7195 { 7196 struct iscsi_bus_flash_session *fnode_sess; 7197 7198 if (!iscsi_flashnode_bus_match(dev, NULL)) 7199 return 0; 7200 7201 fnode_sess = iscsi_dev_to_flash_session(dev); 7202 7203 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7204 } 7205 7206 /** 7207 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7208 * @ha: pointer to host 7209 * @fw_ddb_entry: flash ddb data 7210 * @idx: target index 7211 * @user: if set then this call is made from userland else from kernel 7212 * 7213 * Returns: 7214 * On sucess: QLA_SUCCESS 7215 * On failure: QLA_ERROR 7216 * 7217 * This create separate sysfs entries for session and connection attributes of 7218 * the given fw ddb entry. 7219 * If this is invoked as a result of a userspace call then the entry is marked 7220 * as nonpersistent using flash_state field. 7221 **/ 7222 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7223 struct dev_db_entry *fw_ddb_entry, 7224 uint16_t *idx, int user) 7225 { 7226 struct iscsi_bus_flash_session *fnode_sess = NULL; 7227 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7228 int rc = QLA_ERROR; 7229 7230 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7231 &qla4xxx_iscsi_transport, 0); 7232 if (!fnode_sess) { 7233 ql4_printk(KERN_ERR, ha, 7234 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7235 __func__, *idx, ha->host_no); 7236 goto exit_tgt_create; 7237 } 7238 7239 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7240 &qla4xxx_iscsi_transport, 0); 7241 if (!fnode_conn) { 7242 ql4_printk(KERN_ERR, ha, 7243 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7244 __func__, *idx, ha->host_no); 7245 goto free_sess; 7246 } 7247 7248 if (user) { 7249 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7250 } else { 7251 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7252 7253 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7254 fnode_sess->is_boot_target = 1; 7255 else 7256 fnode_sess->is_boot_target = 0; 7257 } 7258 7259 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7260 fw_ddb_entry); 7261 if (rc) 7262 goto free_sess; 7263 7264 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7265 __func__, fnode_sess->dev.kobj.name); 7266 7267 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7268 __func__, fnode_conn->dev.kobj.name); 7269 7270 return QLA_SUCCESS; 7271 7272 free_sess: 7273 iscsi_destroy_flashnode_sess(fnode_sess); 7274 7275 exit_tgt_create: 7276 return QLA_ERROR; 7277 } 7278 7279 /** 7280 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7281 * @shost: pointer to host 7282 * @buf: type of ddb entry (ipv4/ipv6) 7283 * @len: length of buf 7284 * 7285 * This creates new ddb entry in the flash by finding first free index and 7286 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7287 **/ 7288 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7289 int len) 7290 { 7291 struct scsi_qla_host *ha = to_qla_host(shost); 7292 struct dev_db_entry *fw_ddb_entry = NULL; 7293 dma_addr_t fw_ddb_entry_dma; 7294 struct device *dev; 7295 uint16_t idx = 0; 7296 uint16_t max_ddbs = 0; 7297 uint32_t options = 0; 7298 uint32_t rval = QLA_ERROR; 7299 7300 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7301 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7302 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7303 __func__)); 7304 goto exit_ddb_add; 7305 } 7306 7307 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7308 MAX_DEV_DB_ENTRIES; 7309 7310 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7311 &fw_ddb_entry_dma, GFP_KERNEL); 7312 if (!fw_ddb_entry) { 7313 DEBUG2(ql4_printk(KERN_ERR, ha, 7314 "%s: Unable to allocate dma buffer\n", 7315 __func__)); 7316 goto exit_ddb_add; 7317 } 7318 7319 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7320 qla4xxx_sysfs_ddb_is_non_persistent); 7321 if (dev) { 7322 ql4_printk(KERN_ERR, ha, 7323 "%s: A non-persistent entry %s found\n", 7324 __func__, dev->kobj.name); 7325 put_device(dev); 7326 goto exit_ddb_add; 7327 } 7328 7329 /* Index 0 and 1 are reserved for boot target entries */ 7330 for (idx = 2; idx < max_ddbs; idx++) { 7331 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7332 fw_ddb_entry_dma, idx)) 7333 break; 7334 } 7335 7336 if (idx == max_ddbs) 7337 goto exit_ddb_add; 7338 7339 if (!strncasecmp("ipv6", buf, 4)) 7340 options |= IPV6_DEFAULT_DDB_ENTRY; 7341 7342 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7343 if (rval == QLA_ERROR) 7344 goto exit_ddb_add; 7345 7346 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7347 7348 exit_ddb_add: 7349 if (fw_ddb_entry) 7350 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7351 fw_ddb_entry, fw_ddb_entry_dma); 7352 if (rval == QLA_SUCCESS) 7353 return idx; 7354 else 7355 return -EIO; 7356 } 7357 7358 /** 7359 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7360 * @fnode_sess: pointer to session attrs of flash ddb entry 7361 * @fnode_conn: pointer to connection attrs of flash ddb entry 7362 * 7363 * This writes the contents of target ddb buffer to Flash with a valid cookie 7364 * value in order to make the ddb entry persistent. 7365 **/ 7366 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7367 struct iscsi_bus_flash_conn *fnode_conn) 7368 { 7369 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7370 struct scsi_qla_host *ha = to_qla_host(shost); 7371 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7372 struct dev_db_entry *fw_ddb_entry = NULL; 7373 dma_addr_t fw_ddb_entry_dma; 7374 uint32_t options = 0; 7375 int rval = 0; 7376 7377 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7378 &fw_ddb_entry_dma, GFP_KERNEL); 7379 if (!fw_ddb_entry) { 7380 DEBUG2(ql4_printk(KERN_ERR, ha, 7381 "%s: Unable to allocate dma buffer\n", 7382 __func__)); 7383 rval = -ENOMEM; 7384 goto exit_ddb_apply; 7385 } 7386 7387 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7388 options |= IPV6_DEFAULT_DDB_ENTRY; 7389 7390 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7391 if (rval == QLA_ERROR) 7392 goto exit_ddb_apply; 7393 7394 dev_db_start_offset += (fnode_sess->target_id * 7395 sizeof(*fw_ddb_entry)); 7396 7397 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7398 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7399 7400 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7401 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7402 7403 if (rval == QLA_SUCCESS) { 7404 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7405 ql4_printk(KERN_INFO, ha, 7406 "%s: flash node %u of host %lu written to flash\n", 7407 __func__, fnode_sess->target_id, ha->host_no); 7408 } else { 7409 rval = -EIO; 7410 ql4_printk(KERN_ERR, ha, 7411 "%s: Error while writing flash node %u of host %lu to flash\n", 7412 __func__, fnode_sess->target_id, ha->host_no); 7413 } 7414 7415 exit_ddb_apply: 7416 if (fw_ddb_entry) 7417 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7418 fw_ddb_entry, fw_ddb_entry_dma); 7419 return rval; 7420 } 7421 7422 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7423 struct dev_db_entry *fw_ddb_entry, 7424 uint16_t idx) 7425 { 7426 struct dev_db_entry *ddb_entry = NULL; 7427 dma_addr_t ddb_entry_dma; 7428 unsigned long wtime; 7429 uint32_t mbx_sts = 0; 7430 uint32_t state = 0, conn_err = 0; 7431 uint16_t tmo = 0; 7432 int ret = 0; 7433 7434 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7435 &ddb_entry_dma, GFP_KERNEL); 7436 if (!ddb_entry) { 7437 DEBUG2(ql4_printk(KERN_ERR, ha, 7438 "%s: Unable to allocate dma buffer\n", 7439 __func__)); 7440 return QLA_ERROR; 7441 } 7442 7443 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7444 7445 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7446 if (ret != QLA_SUCCESS) { 7447 DEBUG2(ql4_printk(KERN_ERR, ha, 7448 "%s: Unable to set ddb entry for index %d\n", 7449 __func__, idx)); 7450 goto exit_ddb_conn_open; 7451 } 7452 7453 qla4xxx_conn_open(ha, idx); 7454 7455 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7456 tmo = ((ha->def_timeout > LOGIN_TOV) && 7457 (ha->def_timeout < LOGIN_TOV * 10) ? 7458 ha->def_timeout : LOGIN_TOV); 7459 7460 DEBUG2(ql4_printk(KERN_INFO, ha, 7461 "Default time to wait for login to ddb %d\n", tmo)); 7462 7463 wtime = jiffies + (HZ * tmo); 7464 do { 7465 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7466 NULL, &state, &conn_err, NULL, 7467 NULL); 7468 if (ret == QLA_ERROR) 7469 continue; 7470 7471 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7472 state == DDB_DS_SESSION_FAILED) 7473 break; 7474 7475 schedule_timeout_uninterruptible(HZ / 10); 7476 } while (time_after(wtime, jiffies)); 7477 7478 exit_ddb_conn_open: 7479 if (ddb_entry) 7480 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7481 ddb_entry, ddb_entry_dma); 7482 return ret; 7483 } 7484 7485 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7486 struct dev_db_entry *fw_ddb_entry, 7487 uint16_t target_id) 7488 { 7489 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7490 struct list_head list_nt; 7491 uint16_t ddb_index; 7492 int ret = 0; 7493 7494 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7495 ql4_printk(KERN_WARNING, ha, 7496 "%s: A discovery already in progress!\n", __func__); 7497 return QLA_ERROR; 7498 } 7499 7500 INIT_LIST_HEAD(&list_nt); 7501 7502 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7503 7504 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7505 if (ret == QLA_ERROR) 7506 goto exit_login_st_clr_bit; 7507 7508 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7509 if (ret == QLA_ERROR) 7510 goto exit_login_st; 7511 7512 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7513 7514 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7515 list_del_init(&ddb_idx->list); 7516 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7517 vfree(ddb_idx); 7518 } 7519 7520 exit_login_st: 7521 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7522 ql4_printk(KERN_ERR, ha, 7523 "Unable to clear DDB index = 0x%x\n", ddb_index); 7524 } 7525 7526 clear_bit(ddb_index, ha->ddb_idx_map); 7527 7528 exit_login_st_clr_bit: 7529 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7530 return ret; 7531 } 7532 7533 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7534 struct dev_db_entry *fw_ddb_entry, 7535 uint16_t idx) 7536 { 7537 int ret = QLA_ERROR; 7538 7539 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7540 if (ret != QLA_SUCCESS) 7541 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7542 idx); 7543 else 7544 ret = -EPERM; 7545 7546 return ret; 7547 } 7548 7549 /** 7550 * qla4xxx_sysfs_ddb_login - Login to the specified target 7551 * @fnode_sess: pointer to session attrs of flash ddb entry 7552 * @fnode_conn: pointer to connection attrs of flash ddb entry 7553 * 7554 * This logs in to the specified target 7555 **/ 7556 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7557 struct iscsi_bus_flash_conn *fnode_conn) 7558 { 7559 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7560 struct scsi_qla_host *ha = to_qla_host(shost); 7561 struct dev_db_entry *fw_ddb_entry = NULL; 7562 dma_addr_t fw_ddb_entry_dma; 7563 uint32_t options = 0; 7564 int ret = 0; 7565 7566 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7567 ql4_printk(KERN_ERR, ha, 7568 "%s: Target info is not persistent\n", __func__); 7569 ret = -EIO; 7570 goto exit_ddb_login; 7571 } 7572 7573 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7574 &fw_ddb_entry_dma, GFP_KERNEL); 7575 if (!fw_ddb_entry) { 7576 DEBUG2(ql4_printk(KERN_ERR, ha, 7577 "%s: Unable to allocate dma buffer\n", 7578 __func__)); 7579 ret = -ENOMEM; 7580 goto exit_ddb_login; 7581 } 7582 7583 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7584 options |= IPV6_DEFAULT_DDB_ENTRY; 7585 7586 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7587 if (ret == QLA_ERROR) 7588 goto exit_ddb_login; 7589 7590 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7591 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7592 7593 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7594 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7595 fnode_sess->target_id); 7596 else 7597 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7598 fnode_sess->target_id); 7599 7600 if (ret > 0) 7601 ret = -EIO; 7602 7603 exit_ddb_login: 7604 if (fw_ddb_entry) 7605 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7606 fw_ddb_entry, fw_ddb_entry_dma); 7607 return ret; 7608 } 7609 7610 /** 7611 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7612 * @cls_sess: pointer to session to be logged out 7613 * 7614 * This performs session log out from the specified target 7615 **/ 7616 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7617 { 7618 struct iscsi_session *sess; 7619 struct ddb_entry *ddb_entry = NULL; 7620 struct scsi_qla_host *ha; 7621 struct dev_db_entry *fw_ddb_entry = NULL; 7622 dma_addr_t fw_ddb_entry_dma; 7623 unsigned long flags; 7624 unsigned long wtime; 7625 uint32_t ddb_state; 7626 int options; 7627 int ret = 0; 7628 7629 sess = cls_sess->dd_data; 7630 ddb_entry = sess->dd_data; 7631 ha = ddb_entry->ha; 7632 7633 if (ddb_entry->ddb_type != FLASH_DDB) { 7634 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7635 __func__); 7636 ret = -ENXIO; 7637 goto exit_ddb_logout; 7638 } 7639 7640 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7641 ql4_printk(KERN_ERR, ha, 7642 "%s: Logout from boot target entry is not permitted.\n", 7643 __func__); 7644 ret = -EPERM; 7645 goto exit_ddb_logout; 7646 } 7647 7648 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7649 &fw_ddb_entry_dma, GFP_KERNEL); 7650 if (!fw_ddb_entry) { 7651 ql4_printk(KERN_ERR, ha, 7652 "%s: Unable to allocate dma buffer\n", __func__); 7653 ret = -ENOMEM; 7654 goto exit_ddb_logout; 7655 } 7656 7657 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7658 goto ddb_logout_init; 7659 7660 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7661 fw_ddb_entry, fw_ddb_entry_dma, 7662 NULL, NULL, &ddb_state, NULL, 7663 NULL, NULL); 7664 if (ret == QLA_ERROR) 7665 goto ddb_logout_init; 7666 7667 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7668 goto ddb_logout_init; 7669 7670 /* wait until next relogin is triggered using DF_RELOGIN and 7671 * clear DF_RELOGIN to avoid invocation of further relogin 7672 */ 7673 wtime = jiffies + (HZ * RELOGIN_TOV); 7674 do { 7675 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7676 goto ddb_logout_init; 7677 7678 schedule_timeout_uninterruptible(HZ); 7679 } while ((time_after(wtime, jiffies))); 7680 7681 ddb_logout_init: 7682 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7683 atomic_set(&ddb_entry->relogin_timer, 0); 7684 7685 options = LOGOUT_OPTION_CLOSE_SESSION; 7686 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7687 7688 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7689 wtime = jiffies + (HZ * LOGOUT_TOV); 7690 do { 7691 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7692 fw_ddb_entry, fw_ddb_entry_dma, 7693 NULL, NULL, &ddb_state, NULL, 7694 NULL, NULL); 7695 if (ret == QLA_ERROR) 7696 goto ddb_logout_clr_sess; 7697 7698 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7699 (ddb_state == DDB_DS_SESSION_FAILED)) 7700 goto ddb_logout_clr_sess; 7701 7702 schedule_timeout_uninterruptible(HZ); 7703 } while ((time_after(wtime, jiffies))); 7704 7705 ddb_logout_clr_sess: 7706 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7707 /* 7708 * we have decremented the reference count of the driver 7709 * when we setup the session to have the driver unload 7710 * to be seamless without actually destroying the 7711 * session 7712 **/ 7713 try_module_get(qla4xxx_iscsi_transport.owner); 7714 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7715 7716 spin_lock_irqsave(&ha->hardware_lock, flags); 7717 qla4xxx_free_ddb(ha, ddb_entry); 7718 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7719 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7720 7721 iscsi_session_teardown(ddb_entry->sess); 7722 7723 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7724 ret = QLA_SUCCESS; 7725 7726 exit_ddb_logout: 7727 if (fw_ddb_entry) 7728 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7729 fw_ddb_entry, fw_ddb_entry_dma); 7730 return ret; 7731 } 7732 7733 /** 7734 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7735 * @fnode_sess: pointer to session attrs of flash ddb entry 7736 * @fnode_conn: pointer to connection attrs of flash ddb entry 7737 * 7738 * This performs log out from the specified target 7739 **/ 7740 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7741 struct iscsi_bus_flash_conn *fnode_conn) 7742 { 7743 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7744 struct scsi_qla_host *ha = to_qla_host(shost); 7745 struct ql4_tuple_ddb *flash_tddb = NULL; 7746 struct ql4_tuple_ddb *tmp_tddb = NULL; 7747 struct dev_db_entry *fw_ddb_entry = NULL; 7748 struct ddb_entry *ddb_entry = NULL; 7749 dma_addr_t fw_ddb_dma; 7750 uint32_t next_idx = 0; 7751 uint32_t state = 0, conn_err = 0; 7752 uint16_t conn_id = 0; 7753 int idx, index; 7754 int status, ret = 0; 7755 7756 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7757 &fw_ddb_dma); 7758 if (fw_ddb_entry == NULL) { 7759 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7760 ret = -ENOMEM; 7761 goto exit_ddb_logout; 7762 } 7763 7764 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7765 if (!flash_tddb) { 7766 ql4_printk(KERN_WARNING, ha, 7767 "%s:Memory Allocation failed.\n", __func__); 7768 ret = -ENOMEM; 7769 goto exit_ddb_logout; 7770 } 7771 7772 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7773 if (!tmp_tddb) { 7774 ql4_printk(KERN_WARNING, ha, 7775 "%s:Memory Allocation failed.\n", __func__); 7776 ret = -ENOMEM; 7777 goto exit_ddb_logout; 7778 } 7779 7780 if (!fnode_sess->targetname) { 7781 ql4_printk(KERN_ERR, ha, 7782 "%s:Cannot logout from SendTarget entry\n", 7783 __func__); 7784 ret = -EPERM; 7785 goto exit_ddb_logout; 7786 } 7787 7788 if (fnode_sess->is_boot_target) { 7789 ql4_printk(KERN_ERR, ha, 7790 "%s: Logout from boot target entry is not permitted.\n", 7791 __func__); 7792 ret = -EPERM; 7793 goto exit_ddb_logout; 7794 } 7795 7796 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7797 ISCSI_NAME_SIZE); 7798 7799 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7800 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7801 else 7802 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7803 7804 flash_tddb->tpgt = fnode_sess->tpgt; 7805 flash_tddb->port = fnode_conn->port; 7806 7807 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7808 7809 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7810 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7811 if (ddb_entry == NULL) 7812 continue; 7813 7814 if (ddb_entry->ddb_type != FLASH_DDB) 7815 continue; 7816 7817 index = ddb_entry->sess->target_id; 7818 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7819 fw_ddb_dma, NULL, &next_idx, 7820 &state, &conn_err, NULL, 7821 &conn_id); 7822 if (status == QLA_ERROR) { 7823 ret = -ENOMEM; 7824 break; 7825 } 7826 7827 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7828 7829 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7830 true); 7831 if (status == QLA_SUCCESS) { 7832 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7833 break; 7834 } 7835 } 7836 7837 if (idx == MAX_DDB_ENTRIES) 7838 ret = -ESRCH; 7839 7840 exit_ddb_logout: 7841 if (flash_tddb) 7842 vfree(flash_tddb); 7843 if (tmp_tddb) 7844 vfree(tmp_tddb); 7845 if (fw_ddb_entry) 7846 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7847 7848 return ret; 7849 } 7850 7851 static int 7852 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7853 int param, char *buf) 7854 { 7855 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7856 struct scsi_qla_host *ha = to_qla_host(shost); 7857 struct iscsi_bus_flash_conn *fnode_conn; 7858 struct ql4_chap_table chap_tbl; 7859 struct device *dev; 7860 int parent_type; 7861 int rc = 0; 7862 7863 dev = iscsi_find_flashnode_conn(fnode_sess); 7864 if (!dev) 7865 return -EIO; 7866 7867 fnode_conn = iscsi_dev_to_flash_conn(dev); 7868 7869 switch (param) { 7870 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7871 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7872 break; 7873 case ISCSI_FLASHNODE_PORTAL_TYPE: 7874 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7875 break; 7876 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7877 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7878 break; 7879 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7880 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7881 break; 7882 case ISCSI_FLASHNODE_ENTRY_EN: 7883 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7884 break; 7885 case ISCSI_FLASHNODE_HDR_DGST_EN: 7886 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7887 break; 7888 case ISCSI_FLASHNODE_DATA_DGST_EN: 7889 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7890 break; 7891 case ISCSI_FLASHNODE_IMM_DATA_EN: 7892 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7893 break; 7894 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7895 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7896 break; 7897 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7898 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7899 break; 7900 case ISCSI_FLASHNODE_PDU_INORDER: 7901 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7902 break; 7903 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7904 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7905 break; 7906 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7907 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7908 break; 7909 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7910 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7911 break; 7912 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7913 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7914 break; 7915 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7916 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7917 break; 7918 case ISCSI_FLASHNODE_ERL: 7919 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7920 break; 7921 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7922 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7923 break; 7924 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7925 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7926 break; 7927 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7928 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7929 break; 7930 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7931 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7932 break; 7933 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7934 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7935 break; 7936 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7937 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7938 break; 7939 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7940 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7941 break; 7942 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7943 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7944 break; 7945 case ISCSI_FLASHNODE_FIRST_BURST: 7946 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7947 break; 7948 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7949 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7950 break; 7951 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7952 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7953 break; 7954 case ISCSI_FLASHNODE_MAX_R2T: 7955 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7956 break; 7957 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7958 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7959 break; 7960 case ISCSI_FLASHNODE_ISID: 7961 rc = sprintf(buf, "%pm\n", fnode_sess->isid); 7962 break; 7963 case ISCSI_FLASHNODE_TSID: 7964 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7965 break; 7966 case ISCSI_FLASHNODE_PORT: 7967 rc = sprintf(buf, "%d\n", fnode_conn->port); 7968 break; 7969 case ISCSI_FLASHNODE_MAX_BURST: 7970 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7971 break; 7972 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7973 rc = sprintf(buf, "%u\n", 7974 fnode_sess->default_taskmgmt_timeout); 7975 break; 7976 case ISCSI_FLASHNODE_IPADDR: 7977 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7978 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7979 else 7980 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7981 break; 7982 case ISCSI_FLASHNODE_ALIAS: 7983 if (fnode_sess->targetalias) 7984 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7985 else 7986 rc = sprintf(buf, "\n"); 7987 break; 7988 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7989 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7990 rc = sprintf(buf, "%pI6\n", 7991 fnode_conn->redirect_ipaddr); 7992 else 7993 rc = sprintf(buf, "%pI4\n", 7994 fnode_conn->redirect_ipaddr); 7995 break; 7996 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7997 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7998 break; 7999 case ISCSI_FLASHNODE_LOCAL_PORT: 8000 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 8001 break; 8002 case ISCSI_FLASHNODE_IPV4_TOS: 8003 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 8004 break; 8005 case ISCSI_FLASHNODE_IPV6_TC: 8006 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 8007 rc = sprintf(buf, "%u\n", 8008 fnode_conn->ipv6_traffic_class); 8009 else 8010 rc = sprintf(buf, "\n"); 8011 break; 8012 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8013 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 8014 break; 8015 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8016 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 8017 rc = sprintf(buf, "%pI6\n", 8018 fnode_conn->link_local_ipv6_addr); 8019 else 8020 rc = sprintf(buf, "\n"); 8021 break; 8022 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8023 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 8024 break; 8025 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 8026 if (fnode_sess->discovery_parent_type == DDB_ISNS) 8027 parent_type = ISCSI_DISC_PARENT_ISNS; 8028 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 8029 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8030 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 8031 parent_type = ISCSI_DISC_PARENT_SENDTGT; 8032 else 8033 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8034 8035 rc = sprintf(buf, "%s\n", 8036 iscsi_get_discovery_parent_name(parent_type)); 8037 break; 8038 case ISCSI_FLASHNODE_NAME: 8039 if (fnode_sess->targetname) 8040 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 8041 else 8042 rc = sprintf(buf, "\n"); 8043 break; 8044 case ISCSI_FLASHNODE_TPGT: 8045 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 8046 break; 8047 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8048 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 8049 break; 8050 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8051 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 8052 break; 8053 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8054 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8055 break; 8056 case ISCSI_FLASHNODE_USERNAME: 8057 if (fnode_sess->chap_auth_en) { 8058 qla4xxx_get_uni_chap_at_index(ha, 8059 chap_tbl.name, 8060 chap_tbl.secret, 8061 fnode_sess->chap_out_idx); 8062 rc = sprintf(buf, "%s\n", chap_tbl.name); 8063 } else { 8064 rc = sprintf(buf, "\n"); 8065 } 8066 break; 8067 case ISCSI_FLASHNODE_PASSWORD: 8068 if (fnode_sess->chap_auth_en) { 8069 qla4xxx_get_uni_chap_at_index(ha, 8070 chap_tbl.name, 8071 chap_tbl.secret, 8072 fnode_sess->chap_out_idx); 8073 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8074 } else { 8075 rc = sprintf(buf, "\n"); 8076 } 8077 break; 8078 case ISCSI_FLASHNODE_STATSN: 8079 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8080 break; 8081 case ISCSI_FLASHNODE_EXP_STATSN: 8082 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8083 break; 8084 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8085 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8086 break; 8087 default: 8088 rc = -ENOSYS; 8089 break; 8090 } 8091 8092 put_device(dev); 8093 return rc; 8094 } 8095 8096 /** 8097 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8098 * @fnode_sess: pointer to session attrs of flash ddb entry 8099 * @fnode_conn: pointer to connection attrs of flash ddb entry 8100 * @data: Parameters and their values to update 8101 * @len: len of data 8102 * 8103 * This sets the parameter of flash ddb entry and writes them to flash 8104 **/ 8105 static int 8106 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8107 struct iscsi_bus_flash_conn *fnode_conn, 8108 void *data, int len) 8109 { 8110 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8111 struct scsi_qla_host *ha = to_qla_host(shost); 8112 struct iscsi_flashnode_param_info *fnode_param; 8113 struct ql4_chap_table chap_tbl; 8114 struct nlattr *attr; 8115 uint16_t chap_out_idx = INVALID_ENTRY; 8116 int rc = QLA_ERROR; 8117 uint32_t rem = len; 8118 8119 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8120 nla_for_each_attr(attr, data, len, rem) { 8121 fnode_param = nla_data(attr); 8122 8123 switch (fnode_param->param) { 8124 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8125 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8126 break; 8127 case ISCSI_FLASHNODE_PORTAL_TYPE: 8128 memcpy(fnode_sess->portal_type, fnode_param->value, 8129 strlen(fnode_sess->portal_type)); 8130 break; 8131 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8132 fnode_sess->auto_snd_tgt_disable = 8133 fnode_param->value[0]; 8134 break; 8135 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8136 fnode_sess->discovery_sess = fnode_param->value[0]; 8137 break; 8138 case ISCSI_FLASHNODE_ENTRY_EN: 8139 fnode_sess->entry_state = fnode_param->value[0]; 8140 break; 8141 case ISCSI_FLASHNODE_HDR_DGST_EN: 8142 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8143 break; 8144 case ISCSI_FLASHNODE_DATA_DGST_EN: 8145 fnode_conn->datadgst_en = fnode_param->value[0]; 8146 break; 8147 case ISCSI_FLASHNODE_IMM_DATA_EN: 8148 fnode_sess->imm_data_en = fnode_param->value[0]; 8149 break; 8150 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8151 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8152 break; 8153 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8154 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8155 break; 8156 case ISCSI_FLASHNODE_PDU_INORDER: 8157 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8158 break; 8159 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8160 fnode_sess->chap_auth_en = fnode_param->value[0]; 8161 /* Invalidate chap index if chap auth is disabled */ 8162 if (!fnode_sess->chap_auth_en) 8163 fnode_sess->chap_out_idx = INVALID_ENTRY; 8164 8165 break; 8166 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8167 fnode_conn->snack_req_en = fnode_param->value[0]; 8168 break; 8169 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8170 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8171 break; 8172 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8173 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8174 break; 8175 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8176 fnode_sess->discovery_auth_optional = 8177 fnode_param->value[0]; 8178 break; 8179 case ISCSI_FLASHNODE_ERL: 8180 fnode_sess->erl = fnode_param->value[0]; 8181 break; 8182 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8183 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8184 break; 8185 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8186 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8187 break; 8188 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8189 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8190 break; 8191 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8192 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8193 break; 8194 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8195 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8196 break; 8197 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8198 fnode_conn->fragment_disable = fnode_param->value[0]; 8199 break; 8200 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8201 fnode_conn->max_recv_dlength = 8202 *(unsigned *)fnode_param->value; 8203 break; 8204 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8205 fnode_conn->max_xmit_dlength = 8206 *(unsigned *)fnode_param->value; 8207 break; 8208 case ISCSI_FLASHNODE_FIRST_BURST: 8209 fnode_sess->first_burst = 8210 *(unsigned *)fnode_param->value; 8211 break; 8212 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8213 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8214 break; 8215 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8216 fnode_sess->time2retain = 8217 *(uint16_t *)fnode_param->value; 8218 break; 8219 case ISCSI_FLASHNODE_MAX_R2T: 8220 fnode_sess->max_r2t = 8221 *(uint16_t *)fnode_param->value; 8222 break; 8223 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8224 fnode_conn->keepalive_timeout = 8225 *(uint16_t *)fnode_param->value; 8226 break; 8227 case ISCSI_FLASHNODE_ISID: 8228 memcpy(fnode_sess->isid, fnode_param->value, 8229 sizeof(fnode_sess->isid)); 8230 break; 8231 case ISCSI_FLASHNODE_TSID: 8232 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8233 break; 8234 case ISCSI_FLASHNODE_PORT: 8235 fnode_conn->port = *(uint16_t *)fnode_param->value; 8236 break; 8237 case ISCSI_FLASHNODE_MAX_BURST: 8238 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8239 break; 8240 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8241 fnode_sess->default_taskmgmt_timeout = 8242 *(uint16_t *)fnode_param->value; 8243 break; 8244 case ISCSI_FLASHNODE_IPADDR: 8245 memcpy(fnode_conn->ipaddress, fnode_param->value, 8246 IPv6_ADDR_LEN); 8247 break; 8248 case ISCSI_FLASHNODE_ALIAS: 8249 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8250 (char *)fnode_param->value); 8251 break; 8252 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8253 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8254 IPv6_ADDR_LEN); 8255 break; 8256 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8257 fnode_conn->max_segment_size = 8258 *(unsigned *)fnode_param->value; 8259 break; 8260 case ISCSI_FLASHNODE_LOCAL_PORT: 8261 fnode_conn->local_port = 8262 *(uint16_t *)fnode_param->value; 8263 break; 8264 case ISCSI_FLASHNODE_IPV4_TOS: 8265 fnode_conn->ipv4_tos = fnode_param->value[0]; 8266 break; 8267 case ISCSI_FLASHNODE_IPV6_TC: 8268 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8269 break; 8270 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8271 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8272 break; 8273 case ISCSI_FLASHNODE_NAME: 8274 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8275 (char *)fnode_param->value); 8276 break; 8277 case ISCSI_FLASHNODE_TPGT: 8278 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8279 break; 8280 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8281 memcpy(fnode_conn->link_local_ipv6_addr, 8282 fnode_param->value, IPv6_ADDR_LEN); 8283 break; 8284 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8285 fnode_sess->discovery_parent_idx = 8286 *(uint16_t *)fnode_param->value; 8287 break; 8288 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8289 fnode_conn->tcp_xmit_wsf = 8290 *(uint8_t *)fnode_param->value; 8291 break; 8292 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8293 fnode_conn->tcp_recv_wsf = 8294 *(uint8_t *)fnode_param->value; 8295 break; 8296 case ISCSI_FLASHNODE_STATSN: 8297 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8298 break; 8299 case ISCSI_FLASHNODE_EXP_STATSN: 8300 fnode_conn->exp_statsn = 8301 *(uint32_t *)fnode_param->value; 8302 break; 8303 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8304 chap_out_idx = *(uint16_t *)fnode_param->value; 8305 if (!qla4xxx_get_uni_chap_at_index(ha, 8306 chap_tbl.name, 8307 chap_tbl.secret, 8308 chap_out_idx)) { 8309 fnode_sess->chap_out_idx = chap_out_idx; 8310 /* Enable chap auth if chap index is valid */ 8311 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8312 } 8313 break; 8314 default: 8315 ql4_printk(KERN_ERR, ha, 8316 "%s: No such sysfs attribute\n", __func__); 8317 rc = -ENOSYS; 8318 goto exit_set_param; 8319 } 8320 } 8321 8322 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8323 8324 exit_set_param: 8325 return rc; 8326 } 8327 8328 /** 8329 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8330 * @fnode_sess: pointer to session attrs of flash ddb entry 8331 * 8332 * This invalidates the flash ddb entry at the given index 8333 **/ 8334 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8335 { 8336 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8337 struct scsi_qla_host *ha = to_qla_host(shost); 8338 uint32_t dev_db_start_offset; 8339 uint32_t dev_db_end_offset; 8340 struct dev_db_entry *fw_ddb_entry = NULL; 8341 dma_addr_t fw_ddb_entry_dma; 8342 uint16_t *ddb_cookie = NULL; 8343 size_t ddb_size = 0; 8344 void *pddb = NULL; 8345 int target_id; 8346 int rc = 0; 8347 8348 if (fnode_sess->is_boot_target) { 8349 rc = -EPERM; 8350 DEBUG2(ql4_printk(KERN_ERR, ha, 8351 "%s: Deletion of boot target entry is not permitted.\n", 8352 __func__)); 8353 goto exit_ddb_del; 8354 } 8355 8356 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8357 goto sysfs_ddb_del; 8358 8359 if (is_qla40XX(ha)) { 8360 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8361 dev_db_end_offset = FLASH_OFFSET_DB_END; 8362 dev_db_start_offset += (fnode_sess->target_id * 8363 sizeof(*fw_ddb_entry)); 8364 ddb_size = sizeof(*fw_ddb_entry); 8365 } else { 8366 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8367 (ha->hw.flt_region_ddb << 2); 8368 /* flt_ddb_size is DDB table size for both ports 8369 * so divide it by 2 to calculate the offset for second port 8370 */ 8371 if (ha->port_num == 1) 8372 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8373 8374 dev_db_end_offset = dev_db_start_offset + 8375 (ha->hw.flt_ddb_size / 2); 8376 8377 dev_db_start_offset += (fnode_sess->target_id * 8378 sizeof(*fw_ddb_entry)); 8379 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8380 8381 ddb_size = sizeof(*ddb_cookie); 8382 } 8383 8384 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8385 __func__, dev_db_start_offset, dev_db_end_offset)); 8386 8387 if (dev_db_start_offset > dev_db_end_offset) { 8388 rc = -EIO; 8389 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8390 __func__, fnode_sess->target_id)); 8391 goto exit_ddb_del; 8392 } 8393 8394 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8395 &fw_ddb_entry_dma, GFP_KERNEL); 8396 if (!pddb) { 8397 rc = -ENOMEM; 8398 DEBUG2(ql4_printk(KERN_ERR, ha, 8399 "%s: Unable to allocate dma buffer\n", 8400 __func__)); 8401 goto exit_ddb_del; 8402 } 8403 8404 if (is_qla40XX(ha)) { 8405 fw_ddb_entry = pddb; 8406 memset(fw_ddb_entry, 0, ddb_size); 8407 ddb_cookie = &fw_ddb_entry->cookie; 8408 } else { 8409 ddb_cookie = pddb; 8410 } 8411 8412 /* invalidate the cookie */ 8413 *ddb_cookie = 0xFFEE; 8414 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8415 ddb_size, FLASH_OPT_RMW_COMMIT); 8416 8417 sysfs_ddb_del: 8418 target_id = fnode_sess->target_id; 8419 iscsi_destroy_flashnode_sess(fnode_sess); 8420 ql4_printk(KERN_INFO, ha, 8421 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8422 __func__, target_id, ha->host_no); 8423 exit_ddb_del: 8424 if (pddb) 8425 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8426 fw_ddb_entry_dma); 8427 return rc; 8428 } 8429 8430 /** 8431 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8432 * @ha: pointer to adapter structure 8433 * 8434 * Export the firmware DDB for all send targets and normal targets to sysfs. 8435 **/ 8436 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8437 { 8438 struct dev_db_entry *fw_ddb_entry = NULL; 8439 dma_addr_t fw_ddb_entry_dma; 8440 uint16_t max_ddbs; 8441 uint16_t idx = 0; 8442 int ret = QLA_SUCCESS; 8443 8444 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8445 sizeof(*fw_ddb_entry), 8446 &fw_ddb_entry_dma, GFP_KERNEL); 8447 if (!fw_ddb_entry) { 8448 DEBUG2(ql4_printk(KERN_ERR, ha, 8449 "%s: Unable to allocate dma buffer\n", 8450 __func__)); 8451 return -ENOMEM; 8452 } 8453 8454 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8455 MAX_DEV_DB_ENTRIES; 8456 8457 for (idx = 0; idx < max_ddbs; idx++) { 8458 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8459 idx)) 8460 continue; 8461 8462 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8463 if (ret) { 8464 ret = -EIO; 8465 break; 8466 } 8467 } 8468 8469 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8470 fw_ddb_entry_dma); 8471 8472 return ret; 8473 } 8474 8475 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8476 { 8477 iscsi_destroy_all_flashnode(ha->host); 8478 } 8479 8480 /** 8481 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8482 * @ha: pointer to adapter structure 8483 * @is_reset: Is this init path or reset path 8484 * 8485 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8486 * using connection open, then create the list of normal targets (nt) 8487 * from firmware DDBs. Based on the list of nt setup session and connection 8488 * objects. 8489 **/ 8490 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8491 { 8492 uint16_t tmo = 0; 8493 struct list_head list_st, list_nt; 8494 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8495 unsigned long wtime; 8496 8497 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8498 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8499 ha->is_reset = is_reset; 8500 return; 8501 } 8502 8503 INIT_LIST_HEAD(&list_st); 8504 INIT_LIST_HEAD(&list_nt); 8505 8506 qla4xxx_build_st_list(ha, &list_st); 8507 8508 /* Before issuing conn open mbox, ensure all IPs states are configured 8509 * Note, conn open fails if IPs are not configured 8510 */ 8511 qla4xxx_wait_for_ip_configuration(ha); 8512 8513 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8514 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8515 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8516 } 8517 8518 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8519 tmo = ((ha->def_timeout > LOGIN_TOV) && 8520 (ha->def_timeout < LOGIN_TOV * 10) ? 8521 ha->def_timeout : LOGIN_TOV); 8522 8523 DEBUG2(ql4_printk(KERN_INFO, ha, 8524 "Default time to wait for build ddb %d\n", tmo)); 8525 8526 wtime = jiffies + (HZ * tmo); 8527 do { 8528 if (list_empty(&list_st)) 8529 break; 8530 8531 qla4xxx_remove_failed_ddb(ha, &list_st); 8532 schedule_timeout_uninterruptible(HZ / 10); 8533 } while (time_after(wtime, jiffies)); 8534 8535 8536 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8537 8538 qla4xxx_free_ddb_list(&list_st); 8539 qla4xxx_free_ddb_list(&list_nt); 8540 8541 qla4xxx_free_ddb_index(ha); 8542 } 8543 8544 /** 8545 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8546 * response. 8547 * @ha: pointer to adapter structure 8548 * 8549 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8550 * set in DDB and we will wait for login response of boot targets during 8551 * probe. 8552 **/ 8553 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8554 { 8555 struct ddb_entry *ddb_entry; 8556 struct dev_db_entry *fw_ddb_entry = NULL; 8557 dma_addr_t fw_ddb_entry_dma; 8558 unsigned long wtime; 8559 uint32_t ddb_state; 8560 int max_ddbs, idx, ret; 8561 8562 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8563 MAX_DEV_DB_ENTRIES; 8564 8565 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8566 &fw_ddb_entry_dma, GFP_KERNEL); 8567 if (!fw_ddb_entry) { 8568 ql4_printk(KERN_ERR, ha, 8569 "%s: Unable to allocate dma buffer\n", __func__); 8570 goto exit_login_resp; 8571 } 8572 8573 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8574 8575 for (idx = 0; idx < max_ddbs; idx++) { 8576 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8577 if (ddb_entry == NULL) 8578 continue; 8579 8580 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8581 DEBUG2(ql4_printk(KERN_INFO, ha, 8582 "%s: DDB index [%d]\n", __func__, 8583 ddb_entry->fw_ddb_index)); 8584 do { 8585 ret = qla4xxx_get_fwddb_entry(ha, 8586 ddb_entry->fw_ddb_index, 8587 fw_ddb_entry, fw_ddb_entry_dma, 8588 NULL, NULL, &ddb_state, NULL, 8589 NULL, NULL); 8590 if (ret == QLA_ERROR) 8591 goto exit_login_resp; 8592 8593 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8594 (ddb_state == DDB_DS_SESSION_FAILED)) 8595 break; 8596 8597 schedule_timeout_uninterruptible(HZ); 8598 8599 } while ((time_after(wtime, jiffies))); 8600 8601 if (!time_after(wtime, jiffies)) { 8602 DEBUG2(ql4_printk(KERN_INFO, ha, 8603 "%s: Login response wait timer expired\n", 8604 __func__)); 8605 goto exit_login_resp; 8606 } 8607 } 8608 } 8609 8610 exit_login_resp: 8611 if (fw_ddb_entry) 8612 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8613 fw_ddb_entry, fw_ddb_entry_dma); 8614 } 8615 8616 /** 8617 * qla4xxx_probe_adapter - callback function to probe HBA 8618 * @pdev: pointer to pci_dev structure 8619 * @ent: pointer to pci_device entry 8620 * 8621 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8622 * It returns zero if successful. It also initializes all data necessary for 8623 * the driver. 8624 **/ 8625 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8626 const struct pci_device_id *ent) 8627 { 8628 int ret = -ENODEV, status; 8629 struct Scsi_Host *host; 8630 struct scsi_qla_host *ha; 8631 uint8_t init_retry_count = 0; 8632 char buf[34]; 8633 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8634 uint32_t dev_state; 8635 8636 if (pci_enable_device(pdev)) 8637 return -1; 8638 8639 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8640 if (host == NULL) { 8641 printk(KERN_WARNING 8642 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8643 goto probe_disable_device; 8644 } 8645 8646 /* Clear our data area */ 8647 ha = to_qla_host(host); 8648 memset(ha, 0, sizeof(*ha)); 8649 8650 /* Save the information from PCI BIOS. */ 8651 ha->pdev = pdev; 8652 ha->host = host; 8653 ha->host_no = host->host_no; 8654 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8655 8656 pci_enable_pcie_error_reporting(pdev); 8657 8658 /* Setup Runtime configurable options */ 8659 if (is_qla8022(ha)) { 8660 ha->isp_ops = &qla4_82xx_isp_ops; 8661 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8662 ha->qdr_sn_window = -1; 8663 ha->ddr_mn_window = -1; 8664 ha->curr_window = 255; 8665 nx_legacy_intr = &legacy_intr[ha->func_num]; 8666 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8667 ha->nx_legacy_intr.tgt_status_reg = 8668 nx_legacy_intr->tgt_status_reg; 8669 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8670 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8671 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8672 ha->isp_ops = &qla4_83xx_isp_ops; 8673 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8674 } else { 8675 ha->isp_ops = &qla4xxx_isp_ops; 8676 } 8677 8678 if (is_qla80XX(ha)) { 8679 rwlock_init(&ha->hw_lock); 8680 ha->pf_bit = ha->func_num << 16; 8681 /* Set EEH reset type to fundamental if required by hba */ 8682 pdev->needs_freset = 1; 8683 } 8684 8685 /* Configure PCI I/O space. */ 8686 ret = ha->isp_ops->iospace_config(ha); 8687 if (ret) 8688 goto probe_failed_ioconfig; 8689 8690 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8691 pdev->device, pdev->irq, ha->reg); 8692 8693 qla4xxx_config_dma_addressing(ha); 8694 8695 /* Initialize lists and spinlocks. */ 8696 INIT_LIST_HEAD(&ha->free_srb_q); 8697 8698 mutex_init(&ha->mbox_sem); 8699 mutex_init(&ha->chap_sem); 8700 init_completion(&ha->mbx_intr_comp); 8701 init_completion(&ha->disable_acb_comp); 8702 init_completion(&ha->idc_comp); 8703 init_completion(&ha->link_up_comp); 8704 8705 spin_lock_init(&ha->hardware_lock); 8706 spin_lock_init(&ha->work_lock); 8707 8708 /* Initialize work list */ 8709 INIT_LIST_HEAD(&ha->work_list); 8710 8711 /* Allocate dma buffers */ 8712 if (qla4xxx_mem_alloc(ha)) { 8713 ql4_printk(KERN_WARNING, ha, 8714 "[ERROR] Failed to allocate memory for adapter\n"); 8715 8716 ret = -ENOMEM; 8717 goto probe_failed; 8718 } 8719 8720 host->cmd_per_lun = 3; 8721 host->max_channel = 0; 8722 host->max_lun = MAX_LUNS - 1; 8723 host->max_id = MAX_TARGETS; 8724 host->max_cmd_len = IOCB_MAX_CDB_LEN; 8725 host->can_queue = MAX_SRBS ; 8726 host->transportt = qla4xxx_scsi_transport; 8727 8728 pci_set_drvdata(pdev, ha); 8729 8730 ret = scsi_add_host(host, &pdev->dev); 8731 if (ret) 8732 goto probe_failed; 8733 8734 if (is_qla80XX(ha)) 8735 qla4_8xxx_get_flash_info(ha); 8736 8737 if (is_qla8032(ha) || is_qla8042(ha)) { 8738 qla4_83xx_read_reset_template(ha); 8739 /* 8740 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8741 * If DONRESET_BIT0 is set, drivers should not set dev_state 8742 * to NEED_RESET. But if NEED_RESET is set, drivers should 8743 * should honor the reset. 8744 */ 8745 if (ql4xdontresethba == 1) 8746 qla4_83xx_set_idc_dontreset(ha); 8747 } 8748 8749 /* 8750 * Initialize the Host adapter request/response queues and 8751 * firmware 8752 * NOTE: interrupts enabled upon successful completion 8753 */ 8754 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8755 8756 /* Dont retry adapter initialization if IRQ allocation failed */ 8757 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8758 goto skip_retry_init; 8759 8760 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8761 init_retry_count++ < MAX_INIT_RETRIES) { 8762 8763 if (is_qla80XX(ha)) { 8764 ha->isp_ops->idc_lock(ha); 8765 dev_state = qla4_8xxx_rd_direct(ha, 8766 QLA8XXX_CRB_DEV_STATE); 8767 ha->isp_ops->idc_unlock(ha); 8768 if (dev_state == QLA8XXX_DEV_FAILED) { 8769 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8770 "initialize adapter. H/W is in failed state\n", 8771 __func__); 8772 break; 8773 } 8774 } 8775 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8776 "(%d)\n", __func__, init_retry_count)); 8777 8778 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8779 continue; 8780 8781 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8782 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8783 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8784 goto skip_retry_init; 8785 } 8786 } 8787 8788 skip_retry_init: 8789 if (!test_bit(AF_ONLINE, &ha->flags)) { 8790 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8791 8792 if ((is_qla8022(ha) && ql4xdontresethba) || 8793 ((is_qla8032(ha) || is_qla8042(ha)) && 8794 qla4_83xx_idc_dontreset(ha))) { 8795 /* Put the device in failed state. */ 8796 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8797 ha->isp_ops->idc_lock(ha); 8798 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8799 QLA8XXX_DEV_FAILED); 8800 ha->isp_ops->idc_unlock(ha); 8801 } 8802 ret = -ENODEV; 8803 goto remove_host; 8804 } 8805 8806 /* Startup the kernel thread for this host adapter. */ 8807 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8808 "qla4xxx_dpc\n", __func__)); 8809 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8810 ha->dpc_thread = create_singlethread_workqueue(buf); 8811 if (!ha->dpc_thread) { 8812 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8813 ret = -ENODEV; 8814 goto remove_host; 8815 } 8816 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8817 8818 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8819 ha->host_no); 8820 if (!ha->task_wq) { 8821 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8822 ret = -ENODEV; 8823 goto remove_host; 8824 } 8825 8826 /* 8827 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8828 * (which is called indirectly by qla4xxx_initialize_adapter), 8829 * so that irqs will be registered after crbinit but before 8830 * mbx_intr_enable. 8831 */ 8832 if (is_qla40XX(ha)) { 8833 ret = qla4xxx_request_irqs(ha); 8834 if (ret) { 8835 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8836 "interrupt %d already in use.\n", pdev->irq); 8837 goto remove_host; 8838 } 8839 } 8840 8841 pci_save_state(ha->pdev); 8842 ha->isp_ops->enable_intrs(ha); 8843 8844 /* Start timer thread. */ 8845 qla4xxx_start_timer(ha, 1); 8846 8847 set_bit(AF_INIT_DONE, &ha->flags); 8848 8849 qla4_8xxx_alloc_sysfs_attr(ha); 8850 8851 printk(KERN_INFO 8852 " QLogic iSCSI HBA Driver version: %s\n" 8853 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8854 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8855 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8856 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8857 8858 /* Set the driver version */ 8859 if (is_qla80XX(ha)) 8860 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8861 8862 if (qla4xxx_setup_boot_info(ha)) 8863 ql4_printk(KERN_ERR, ha, 8864 "%s: No iSCSI boot target configured\n", __func__); 8865 8866 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags); 8867 /* Perform the build ddb list and login to each */ 8868 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8869 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8870 qla4xxx_wait_login_resp_boot_tgt(ha); 8871 8872 qla4xxx_create_chap_list(ha); 8873 8874 qla4xxx_create_ifaces(ha); 8875 return 0; 8876 8877 remove_host: 8878 scsi_remove_host(ha->host); 8879 8880 probe_failed: 8881 qla4xxx_free_adapter(ha); 8882 8883 probe_failed_ioconfig: 8884 pci_disable_pcie_error_reporting(pdev); 8885 scsi_host_put(ha->host); 8886 8887 probe_disable_device: 8888 pci_disable_device(pdev); 8889 8890 return ret; 8891 } 8892 8893 /** 8894 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8895 * @ha: pointer to adapter structure 8896 * 8897 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8898 * so that the other port will not re-initialize while in the process of 8899 * removing the ha due to driver unload or hba hotplug. 8900 **/ 8901 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8902 { 8903 struct scsi_qla_host *other_ha = NULL; 8904 struct pci_dev *other_pdev = NULL; 8905 int fn = ISP4XXX_PCI_FN_2; 8906 8907 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8908 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8909 fn = ISP4XXX_PCI_FN_1; 8910 8911 other_pdev = 8912 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8913 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8914 fn)); 8915 8916 /* Get other_ha if other_pdev is valid and state is enable*/ 8917 if (other_pdev) { 8918 if (atomic_read(&other_pdev->enable_cnt)) { 8919 other_ha = pci_get_drvdata(other_pdev); 8920 if (other_ha) { 8921 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8922 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8923 "Prevent %s reinit\n", __func__, 8924 dev_name(&other_ha->pdev->dev))); 8925 } 8926 } 8927 pci_dev_put(other_pdev); 8928 } 8929 } 8930 8931 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8932 struct ddb_entry *ddb_entry) 8933 { 8934 struct dev_db_entry *fw_ddb_entry = NULL; 8935 dma_addr_t fw_ddb_entry_dma; 8936 unsigned long wtime; 8937 uint32_t ddb_state; 8938 int options; 8939 int status; 8940 8941 options = LOGOUT_OPTION_CLOSE_SESSION; 8942 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8943 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8944 goto clear_ddb; 8945 } 8946 8947 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8948 &fw_ddb_entry_dma, GFP_KERNEL); 8949 if (!fw_ddb_entry) { 8950 ql4_printk(KERN_ERR, ha, 8951 "%s: Unable to allocate dma buffer\n", __func__); 8952 goto clear_ddb; 8953 } 8954 8955 wtime = jiffies + (HZ * LOGOUT_TOV); 8956 do { 8957 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8958 fw_ddb_entry, fw_ddb_entry_dma, 8959 NULL, NULL, &ddb_state, NULL, 8960 NULL, NULL); 8961 if (status == QLA_ERROR) 8962 goto free_ddb; 8963 8964 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8965 (ddb_state == DDB_DS_SESSION_FAILED)) 8966 goto free_ddb; 8967 8968 schedule_timeout_uninterruptible(HZ); 8969 } while ((time_after(wtime, jiffies))); 8970 8971 free_ddb: 8972 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8973 fw_ddb_entry, fw_ddb_entry_dma); 8974 clear_ddb: 8975 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8976 } 8977 8978 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8979 { 8980 struct ddb_entry *ddb_entry; 8981 int idx; 8982 8983 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8984 8985 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8986 if ((ddb_entry != NULL) && 8987 (ddb_entry->ddb_type == FLASH_DDB)) { 8988 8989 qla4xxx_destroy_ddb(ha, ddb_entry); 8990 /* 8991 * we have decremented the reference count of the driver 8992 * when we setup the session to have the driver unload 8993 * to be seamless without actually destroying the 8994 * session 8995 **/ 8996 try_module_get(qla4xxx_iscsi_transport.owner); 8997 iscsi_destroy_endpoint(ddb_entry->conn->ep); 8998 qla4xxx_free_ddb(ha, ddb_entry); 8999 iscsi_session_teardown(ddb_entry->sess); 9000 } 9001 } 9002 } 9003 /** 9004 * qla4xxx_remove_adapter - callback function to remove adapter. 9005 * @pdev: PCI device pointer 9006 **/ 9007 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 9008 { 9009 struct scsi_qla_host *ha; 9010 9011 /* 9012 * If the PCI device is disabled then it means probe_adapter had 9013 * failed and resources already cleaned up on probe_adapter exit. 9014 */ 9015 if (!pci_is_enabled(pdev)) 9016 return; 9017 9018 ha = pci_get_drvdata(pdev); 9019 9020 if (is_qla40XX(ha)) 9021 qla4xxx_prevent_other_port_reinit(ha); 9022 9023 /* destroy iface from sysfs */ 9024 qla4xxx_destroy_ifaces(ha); 9025 9026 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 9027 iscsi_boot_destroy_kset(ha->boot_kset); 9028 9029 qla4xxx_destroy_fw_ddb_session(ha); 9030 qla4_8xxx_free_sysfs_attr(ha); 9031 9032 qla4xxx_sysfs_ddb_remove(ha); 9033 scsi_remove_host(ha->host); 9034 9035 qla4xxx_free_adapter(ha); 9036 9037 scsi_host_put(ha->host); 9038 9039 pci_disable_pcie_error_reporting(pdev); 9040 pci_disable_device(pdev); 9041 } 9042 9043 /** 9044 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9045 * @ha: HA context 9046 */ 9047 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9048 { 9049 /* Update our PCI device dma_mask for full 64 bit mask */ 9050 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) { 9051 dev_dbg(&ha->pdev->dev, 9052 "Failed to set 64 bit PCI consistent mask; " 9053 "using 32 bit.\n"); 9054 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32)); 9055 } 9056 } 9057 9058 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 9059 { 9060 struct iscsi_cls_session *cls_sess; 9061 struct iscsi_session *sess; 9062 struct ddb_entry *ddb; 9063 int queue_depth = QL4_DEF_QDEPTH; 9064 9065 cls_sess = starget_to_session(sdev->sdev_target); 9066 sess = cls_sess->dd_data; 9067 ddb = sess->dd_data; 9068 9069 sdev->hostdata = ddb; 9070 9071 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9072 queue_depth = ql4xmaxqdepth; 9073 9074 scsi_change_queue_depth(sdev, queue_depth); 9075 return 0; 9076 } 9077 9078 /** 9079 * qla4xxx_del_from_active_array - returns an active srb 9080 * @ha: Pointer to host adapter structure. 9081 * @index: index into the active_array 9082 * 9083 * This routine removes and returns the srb at the specified index 9084 **/ 9085 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9086 uint32_t index) 9087 { 9088 struct srb *srb = NULL; 9089 struct scsi_cmnd *cmd = NULL; 9090 9091 cmd = scsi_host_find_tag(ha->host, index); 9092 if (!cmd) 9093 return srb; 9094 9095 srb = (struct srb *)CMD_SP(cmd); 9096 if (!srb) 9097 return srb; 9098 9099 /* update counters */ 9100 if (srb->flags & SRB_DMA_VALID) { 9101 ha->iocb_cnt -= srb->iocb_cnt; 9102 if (srb->cmd) 9103 srb->cmd->host_scribble = 9104 (unsigned char *)(unsigned long) MAX_SRBS; 9105 } 9106 return srb; 9107 } 9108 9109 /** 9110 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9111 * @ha: Pointer to host adapter structure. 9112 * @cmd: Scsi Command to wait on. 9113 * 9114 * This routine waits for the command to be returned by the Firmware 9115 * for some max time. 9116 **/ 9117 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9118 struct scsi_cmnd *cmd) 9119 { 9120 int done = 0; 9121 struct srb *rp; 9122 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9123 int ret = SUCCESS; 9124 9125 /* Dont wait on command if PCI error is being handled 9126 * by PCI AER driver 9127 */ 9128 if (unlikely(pci_channel_offline(ha->pdev)) || 9129 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9130 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9131 ha->host_no, __func__); 9132 return ret; 9133 } 9134 9135 do { 9136 /* Checking to see if its returned to OS */ 9137 rp = (struct srb *) CMD_SP(cmd); 9138 if (rp == NULL) { 9139 done++; 9140 break; 9141 } 9142 9143 msleep(2000); 9144 } while (max_wait_time--); 9145 9146 return done; 9147 } 9148 9149 /** 9150 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9151 * @ha: Pointer to host adapter structure 9152 **/ 9153 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9154 { 9155 unsigned long wait_online; 9156 9157 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9158 while (time_before(jiffies, wait_online)) { 9159 9160 if (adapter_up(ha)) 9161 return QLA_SUCCESS; 9162 9163 msleep(2000); 9164 } 9165 9166 return QLA_ERROR; 9167 } 9168 9169 /** 9170 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9171 * @ha: pointer to HBA 9172 * @stgt: pointer to SCSI target 9173 * @sdev: pointer to SCSI device 9174 * 9175 * This function waits for all outstanding commands to a lun to complete. It 9176 * returns 0 if all pending commands are returned and 1 otherwise. 9177 **/ 9178 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9179 struct scsi_target *stgt, 9180 struct scsi_device *sdev) 9181 { 9182 int cnt; 9183 int status = 0; 9184 struct scsi_cmnd *cmd; 9185 9186 /* 9187 * Waiting for all commands for the designated target or dev 9188 * in the active array 9189 */ 9190 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9191 cmd = scsi_host_find_tag(ha->host, cnt); 9192 if (cmd && stgt == scsi_target(cmd->device) && 9193 (!sdev || sdev == cmd->device)) { 9194 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9195 status++; 9196 break; 9197 } 9198 } 9199 } 9200 return status; 9201 } 9202 9203 /** 9204 * qla4xxx_eh_abort - callback for abort task. 9205 * @cmd: Pointer to Linux's SCSI command structure 9206 * 9207 * This routine is called by the Linux OS to abort the specified 9208 * command. 9209 **/ 9210 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9211 { 9212 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9213 unsigned int id = cmd->device->id; 9214 uint64_t lun = cmd->device->lun; 9215 unsigned long flags; 9216 struct srb *srb = NULL; 9217 int ret = SUCCESS; 9218 int wait = 0; 9219 int rval; 9220 9221 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n", 9222 ha->host_no, id, lun, cmd, cmd->cmnd[0]); 9223 9224 rval = qla4xxx_isp_check_reg(ha); 9225 if (rval != QLA_SUCCESS) { 9226 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9227 return FAILED; 9228 } 9229 9230 spin_lock_irqsave(&ha->hardware_lock, flags); 9231 srb = (struct srb *) CMD_SP(cmd); 9232 if (!srb) { 9233 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9234 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n", 9235 ha->host_no, id, lun); 9236 return SUCCESS; 9237 } 9238 kref_get(&srb->srb_ref); 9239 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9240 9241 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9242 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n", 9243 ha->host_no, id, lun)); 9244 ret = FAILED; 9245 } else { 9246 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n", 9247 ha->host_no, id, lun)); 9248 wait = 1; 9249 } 9250 9251 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9252 9253 /* Wait for command to complete */ 9254 if (wait) { 9255 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9256 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n", 9257 ha->host_no, id, lun)); 9258 ret = FAILED; 9259 } 9260 } 9261 9262 ql4_printk(KERN_INFO, ha, 9263 "scsi%ld:%d:%llu: Abort command - %s\n", 9264 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9265 9266 return ret; 9267 } 9268 9269 /** 9270 * qla4xxx_eh_device_reset - callback for target reset. 9271 * @cmd: Pointer to Linux's SCSI command structure 9272 * 9273 * This routine is called by the Linux OS to reset all luns on the 9274 * specified target. 9275 **/ 9276 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9277 { 9278 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9279 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9280 int ret = FAILED, stat; 9281 int rval; 9282 9283 if (!ddb_entry) 9284 return ret; 9285 9286 ret = iscsi_block_scsi_eh(cmd); 9287 if (ret) 9288 return ret; 9289 ret = FAILED; 9290 9291 ql4_printk(KERN_INFO, ha, 9292 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no, 9293 cmd->device->channel, cmd->device->id, cmd->device->lun); 9294 9295 DEBUG2(printk(KERN_INFO 9296 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9297 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9298 cmd, jiffies, cmd->request->timeout / HZ, 9299 ha->dpc_flags, cmd->result, cmd->allowed)); 9300 9301 rval = qla4xxx_isp_check_reg(ha); 9302 if (rval != QLA_SUCCESS) { 9303 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9304 return FAILED; 9305 } 9306 9307 /* FIXME: wait for hba to go online */ 9308 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9309 if (stat != QLA_SUCCESS) { 9310 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9311 goto eh_dev_reset_done; 9312 } 9313 9314 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9315 cmd->device)) { 9316 ql4_printk(KERN_INFO, ha, 9317 "DEVICE RESET FAILED - waiting for " 9318 "commands.\n"); 9319 goto eh_dev_reset_done; 9320 } 9321 9322 /* Send marker. */ 9323 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9324 MM_LUN_RESET) != QLA_SUCCESS) 9325 goto eh_dev_reset_done; 9326 9327 ql4_printk(KERN_INFO, ha, 9328 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n", 9329 ha->host_no, cmd->device->channel, cmd->device->id, 9330 cmd->device->lun); 9331 9332 ret = SUCCESS; 9333 9334 eh_dev_reset_done: 9335 9336 return ret; 9337 } 9338 9339 /** 9340 * qla4xxx_eh_target_reset - callback for target reset. 9341 * @cmd: Pointer to Linux's SCSI command structure 9342 * 9343 * This routine is called by the Linux OS to reset the target. 9344 **/ 9345 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9346 { 9347 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9348 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9349 int stat, ret; 9350 int rval; 9351 9352 if (!ddb_entry) 9353 return FAILED; 9354 9355 ret = iscsi_block_scsi_eh(cmd); 9356 if (ret) 9357 return ret; 9358 9359 starget_printk(KERN_INFO, scsi_target(cmd->device), 9360 "WARM TARGET RESET ISSUED.\n"); 9361 9362 DEBUG2(printk(KERN_INFO 9363 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9364 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9365 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 9366 ha->dpc_flags, cmd->result, cmd->allowed)); 9367 9368 rval = qla4xxx_isp_check_reg(ha); 9369 if (rval != QLA_SUCCESS) { 9370 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9371 return FAILED; 9372 } 9373 9374 stat = qla4xxx_reset_target(ha, ddb_entry); 9375 if (stat != QLA_SUCCESS) { 9376 starget_printk(KERN_INFO, scsi_target(cmd->device), 9377 "WARM TARGET RESET FAILED.\n"); 9378 return FAILED; 9379 } 9380 9381 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9382 NULL)) { 9383 starget_printk(KERN_INFO, scsi_target(cmd->device), 9384 "WARM TARGET DEVICE RESET FAILED - " 9385 "waiting for commands.\n"); 9386 return FAILED; 9387 } 9388 9389 /* Send marker. */ 9390 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9391 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9392 starget_printk(KERN_INFO, scsi_target(cmd->device), 9393 "WARM TARGET DEVICE RESET FAILED - " 9394 "marker iocb failed.\n"); 9395 return FAILED; 9396 } 9397 9398 starget_printk(KERN_INFO, scsi_target(cmd->device), 9399 "WARM TARGET RESET SUCCEEDED.\n"); 9400 return SUCCESS; 9401 } 9402 9403 /** 9404 * qla4xxx_is_eh_active - check if error handler is running 9405 * @shost: Pointer to SCSI Host struct 9406 * 9407 * This routine finds that if reset host is called in EH 9408 * scenario or from some application like sg_reset 9409 **/ 9410 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9411 { 9412 if (shost->shost_state == SHOST_RECOVERY) 9413 return 1; 9414 return 0; 9415 } 9416 9417 /** 9418 * qla4xxx_eh_host_reset - kernel callback 9419 * @cmd: Pointer to Linux's SCSI command structure 9420 * 9421 * This routine is invoked by the Linux kernel to perform fatal error 9422 * recovery on the specified adapter. 9423 **/ 9424 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9425 { 9426 int return_status = FAILED; 9427 struct scsi_qla_host *ha; 9428 int rval; 9429 9430 ha = to_qla_host(cmd->device->host); 9431 9432 rval = qla4xxx_isp_check_reg(ha); 9433 if (rval != QLA_SUCCESS) { 9434 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9435 return FAILED; 9436 } 9437 9438 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9439 qla4_83xx_set_idc_dontreset(ha); 9440 9441 /* 9442 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9443 * protocol drivers, we should not set device_state to NEED_RESET 9444 */ 9445 if (ql4xdontresethba || 9446 ((is_qla8032(ha) || is_qla8042(ha)) && 9447 qla4_83xx_idc_dontreset(ha))) { 9448 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9449 ha->host_no, __func__)); 9450 9451 /* Clear outstanding srb in queues */ 9452 if (qla4xxx_is_eh_active(cmd->device->host)) 9453 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9454 9455 return FAILED; 9456 } 9457 9458 ql4_printk(KERN_INFO, ha, 9459 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no, 9460 cmd->device->channel, cmd->device->id, cmd->device->lun); 9461 9462 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9463 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9464 "DEAD.\n", ha->host_no, cmd->device->channel, 9465 __func__)); 9466 9467 return FAILED; 9468 } 9469 9470 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9471 if (is_qla80XX(ha)) 9472 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9473 else 9474 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9475 } 9476 9477 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9478 return_status = SUCCESS; 9479 9480 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9481 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9482 9483 return return_status; 9484 } 9485 9486 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9487 { 9488 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9489 uint32_t mbox_sts[MBOX_REG_COUNT]; 9490 struct addr_ctrl_blk_def *acb = NULL; 9491 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9492 int rval = QLA_SUCCESS; 9493 dma_addr_t acb_dma; 9494 9495 acb = dma_alloc_coherent(&ha->pdev->dev, 9496 sizeof(struct addr_ctrl_blk_def), 9497 &acb_dma, GFP_KERNEL); 9498 if (!acb) { 9499 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9500 __func__); 9501 rval = -ENOMEM; 9502 goto exit_port_reset; 9503 } 9504 9505 memset(acb, 0, acb_len); 9506 9507 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9508 if (rval != QLA_SUCCESS) { 9509 rval = -EIO; 9510 goto exit_free_acb; 9511 } 9512 9513 rval = qla4xxx_disable_acb(ha); 9514 if (rval != QLA_SUCCESS) { 9515 rval = -EIO; 9516 goto exit_free_acb; 9517 } 9518 9519 wait_for_completion_timeout(&ha->disable_acb_comp, 9520 DISABLE_ACB_TOV * HZ); 9521 9522 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9523 if (rval != QLA_SUCCESS) { 9524 rval = -EIO; 9525 goto exit_free_acb; 9526 } 9527 9528 exit_free_acb: 9529 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9530 acb, acb_dma); 9531 exit_port_reset: 9532 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9533 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9534 return rval; 9535 } 9536 9537 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9538 { 9539 struct scsi_qla_host *ha = to_qla_host(shost); 9540 int rval = QLA_SUCCESS; 9541 uint32_t idc_ctrl; 9542 9543 if (ql4xdontresethba) { 9544 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9545 __func__)); 9546 rval = -EPERM; 9547 goto exit_host_reset; 9548 } 9549 9550 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9551 goto recover_adapter; 9552 9553 switch (reset_type) { 9554 case SCSI_ADAPTER_RESET: 9555 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9556 break; 9557 case SCSI_FIRMWARE_RESET: 9558 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9559 if (is_qla80XX(ha)) 9560 /* set firmware context reset */ 9561 set_bit(DPC_RESET_HA_FW_CONTEXT, 9562 &ha->dpc_flags); 9563 else { 9564 rval = qla4xxx_context_reset(ha); 9565 goto exit_host_reset; 9566 } 9567 } 9568 break; 9569 } 9570 9571 recover_adapter: 9572 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9573 * reset is issued by application */ 9574 if ((is_qla8032(ha) || is_qla8042(ha)) && 9575 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9576 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9577 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9578 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9579 } 9580 9581 rval = qla4xxx_recover_adapter(ha); 9582 if (rval != QLA_SUCCESS) { 9583 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9584 __func__)); 9585 rval = -EIO; 9586 } 9587 9588 exit_host_reset: 9589 return rval; 9590 } 9591 9592 /* PCI AER driver recovers from all correctable errors w/o 9593 * driver intervention. For uncorrectable errors PCI AER 9594 * driver calls the following device driver's callbacks 9595 * 9596 * - Fatal Errors - link_reset 9597 * - Non-Fatal Errors - driver's error_detected() which 9598 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9599 * 9600 * PCI AER driver calls 9601 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled() 9602 * returns RECOVERED or NEED_RESET if fw_hung 9603 * NEED_RESET - driver's slot_reset() 9604 * DISCONNECT - device is dead & cannot recover 9605 * RECOVERED - driver's resume() 9606 */ 9607 static pci_ers_result_t 9608 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9609 { 9610 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9611 9612 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9613 ha->host_no, __func__, state); 9614 9615 if (!is_aer_supported(ha)) 9616 return PCI_ERS_RESULT_NONE; 9617 9618 switch (state) { 9619 case pci_channel_io_normal: 9620 clear_bit(AF_EEH_BUSY, &ha->flags); 9621 return PCI_ERS_RESULT_CAN_RECOVER; 9622 case pci_channel_io_frozen: 9623 set_bit(AF_EEH_BUSY, &ha->flags); 9624 qla4xxx_mailbox_premature_completion(ha); 9625 qla4xxx_free_irqs(ha); 9626 pci_disable_device(pdev); 9627 /* Return back all IOs */ 9628 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9629 return PCI_ERS_RESULT_NEED_RESET; 9630 case pci_channel_io_perm_failure: 9631 set_bit(AF_EEH_BUSY, &ha->flags); 9632 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9633 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9634 return PCI_ERS_RESULT_DISCONNECT; 9635 } 9636 return PCI_ERS_RESULT_NEED_RESET; 9637 } 9638 9639 /** 9640 * qla4xxx_pci_mmio_enabled() gets called if 9641 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9642 * and read/write to the device still works. 9643 * @pdev: PCI device pointer 9644 **/ 9645 static pci_ers_result_t 9646 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9647 { 9648 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9649 9650 if (!is_aer_supported(ha)) 9651 return PCI_ERS_RESULT_NONE; 9652 9653 return PCI_ERS_RESULT_RECOVERED; 9654 } 9655 9656 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9657 { 9658 uint32_t rval = QLA_ERROR; 9659 int fn; 9660 struct pci_dev *other_pdev = NULL; 9661 9662 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9663 9664 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9665 9666 if (test_bit(AF_ONLINE, &ha->flags)) { 9667 clear_bit(AF_ONLINE, &ha->flags); 9668 clear_bit(AF_LINK_UP, &ha->flags); 9669 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9670 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9671 } 9672 9673 fn = PCI_FUNC(ha->pdev->devfn); 9674 if (is_qla8022(ha)) { 9675 while (fn > 0) { 9676 fn--; 9677 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9678 ha->host_no, __func__, fn); 9679 /* Get the pci device given the domain, bus, 9680 * slot/function number */ 9681 other_pdev = pci_get_domain_bus_and_slot( 9682 pci_domain_nr(ha->pdev->bus), 9683 ha->pdev->bus->number, 9684 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9685 fn)); 9686 9687 if (!other_pdev) 9688 continue; 9689 9690 if (atomic_read(&other_pdev->enable_cnt)) { 9691 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9692 ha->host_no, __func__, fn); 9693 pci_dev_put(other_pdev); 9694 break; 9695 } 9696 pci_dev_put(other_pdev); 9697 } 9698 } else { 9699 /* this case is meant for ISP83xx/ISP84xx only */ 9700 if (qla4_83xx_can_perform_reset(ha)) { 9701 /* reset fn as iSCSI is going to perform the reset */ 9702 fn = 0; 9703 } 9704 } 9705 9706 /* The first function on the card, the reset owner will 9707 * start & initialize the firmware. The other functions 9708 * on the card will reset the firmware context 9709 */ 9710 if (!fn) { 9711 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9712 "0x%x is the owner\n", ha->host_no, __func__, 9713 ha->pdev->devfn); 9714 9715 ha->isp_ops->idc_lock(ha); 9716 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9717 QLA8XXX_DEV_COLD); 9718 ha->isp_ops->idc_unlock(ha); 9719 9720 rval = qla4_8xxx_update_idc_reg(ha); 9721 if (rval == QLA_ERROR) { 9722 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9723 ha->host_no, __func__); 9724 ha->isp_ops->idc_lock(ha); 9725 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9726 QLA8XXX_DEV_FAILED); 9727 ha->isp_ops->idc_unlock(ha); 9728 goto exit_error_recovery; 9729 } 9730 9731 clear_bit(AF_FW_RECOVERY, &ha->flags); 9732 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9733 9734 if (rval != QLA_SUCCESS) { 9735 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9736 "FAILED\n", ha->host_no, __func__); 9737 qla4xxx_free_irqs(ha); 9738 ha->isp_ops->idc_lock(ha); 9739 qla4_8xxx_clear_drv_active(ha); 9740 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9741 QLA8XXX_DEV_FAILED); 9742 ha->isp_ops->idc_unlock(ha); 9743 } else { 9744 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9745 "READY\n", ha->host_no, __func__); 9746 ha->isp_ops->idc_lock(ha); 9747 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9748 QLA8XXX_DEV_READY); 9749 /* Clear driver state register */ 9750 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9751 qla4_8xxx_set_drv_active(ha); 9752 ha->isp_ops->idc_unlock(ha); 9753 ha->isp_ops->enable_intrs(ha); 9754 } 9755 } else { 9756 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9757 "the reset owner\n", ha->host_no, __func__, 9758 ha->pdev->devfn); 9759 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9760 QLA8XXX_DEV_READY)) { 9761 clear_bit(AF_FW_RECOVERY, &ha->flags); 9762 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9763 if (rval == QLA_SUCCESS) 9764 ha->isp_ops->enable_intrs(ha); 9765 else 9766 qla4xxx_free_irqs(ha); 9767 9768 ha->isp_ops->idc_lock(ha); 9769 qla4_8xxx_set_drv_active(ha); 9770 ha->isp_ops->idc_unlock(ha); 9771 } 9772 } 9773 exit_error_recovery: 9774 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9775 return rval; 9776 } 9777 9778 static pci_ers_result_t 9779 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9780 { 9781 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9782 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9783 int rc; 9784 9785 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9786 ha->host_no, __func__); 9787 9788 if (!is_aer_supported(ha)) 9789 return PCI_ERS_RESULT_NONE; 9790 9791 /* Restore the saved state of PCIe device - 9792 * BAR registers, PCI Config space, PCIX, MSI, 9793 * IOV states 9794 */ 9795 pci_restore_state(pdev); 9796 9797 /* pci_restore_state() clears the saved_state flag of the device 9798 * save restored state which resets saved_state flag 9799 */ 9800 pci_save_state(pdev); 9801 9802 /* Initialize device or resume if in suspended state */ 9803 rc = pci_enable_device(pdev); 9804 if (rc) { 9805 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9806 "device after reset\n", ha->host_no, __func__); 9807 goto exit_slot_reset; 9808 } 9809 9810 ha->isp_ops->disable_intrs(ha); 9811 9812 if (is_qla80XX(ha)) { 9813 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9814 ret = PCI_ERS_RESULT_RECOVERED; 9815 goto exit_slot_reset; 9816 } else 9817 goto exit_slot_reset; 9818 } 9819 9820 exit_slot_reset: 9821 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9822 "device after reset\n", ha->host_no, __func__, ret); 9823 return ret; 9824 } 9825 9826 static void 9827 qla4xxx_pci_resume(struct pci_dev *pdev) 9828 { 9829 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9830 int ret; 9831 9832 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9833 ha->host_no, __func__); 9834 9835 ret = qla4xxx_wait_for_hba_online(ha); 9836 if (ret != QLA_SUCCESS) { 9837 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9838 "resume I/O from slot/link_reset\n", ha->host_no, 9839 __func__); 9840 } 9841 9842 clear_bit(AF_EEH_BUSY, &ha->flags); 9843 } 9844 9845 static const struct pci_error_handlers qla4xxx_err_handler = { 9846 .error_detected = qla4xxx_pci_error_detected, 9847 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9848 .slot_reset = qla4xxx_pci_slot_reset, 9849 .resume = qla4xxx_pci_resume, 9850 }; 9851 9852 static struct pci_device_id qla4xxx_pci_tbl[] = { 9853 { 9854 .vendor = PCI_VENDOR_ID_QLOGIC, 9855 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9856 .subvendor = PCI_ANY_ID, 9857 .subdevice = PCI_ANY_ID, 9858 }, 9859 { 9860 .vendor = PCI_VENDOR_ID_QLOGIC, 9861 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9862 .subvendor = PCI_ANY_ID, 9863 .subdevice = PCI_ANY_ID, 9864 }, 9865 { 9866 .vendor = PCI_VENDOR_ID_QLOGIC, 9867 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9868 .subvendor = PCI_ANY_ID, 9869 .subdevice = PCI_ANY_ID, 9870 }, 9871 { 9872 .vendor = PCI_VENDOR_ID_QLOGIC, 9873 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9874 .subvendor = PCI_ANY_ID, 9875 .subdevice = PCI_ANY_ID, 9876 }, 9877 { 9878 .vendor = PCI_VENDOR_ID_QLOGIC, 9879 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9880 .subvendor = PCI_ANY_ID, 9881 .subdevice = PCI_ANY_ID, 9882 }, 9883 { 9884 .vendor = PCI_VENDOR_ID_QLOGIC, 9885 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9886 .subvendor = PCI_ANY_ID, 9887 .subdevice = PCI_ANY_ID, 9888 }, 9889 {0, 0}, 9890 }; 9891 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9892 9893 static struct pci_driver qla4xxx_pci_driver = { 9894 .name = DRIVER_NAME, 9895 .id_table = qla4xxx_pci_tbl, 9896 .probe = qla4xxx_probe_adapter, 9897 .remove = qla4xxx_remove_adapter, 9898 .err_handler = &qla4xxx_err_handler, 9899 }; 9900 9901 static int __init qla4xxx_module_init(void) 9902 { 9903 int ret; 9904 9905 if (ql4xqfulltracking) 9906 qla4xxx_driver_template.track_queue_depth = 1; 9907 9908 /* Allocate cache for SRBs. */ 9909 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9910 SLAB_HWCACHE_ALIGN, NULL); 9911 if (srb_cachep == NULL) { 9912 printk(KERN_ERR 9913 "%s: Unable to allocate SRB cache..." 9914 "Failing load!\n", DRIVER_NAME); 9915 ret = -ENOMEM; 9916 goto no_srp_cache; 9917 } 9918 9919 /* Derive version string. */ 9920 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9921 if (ql4xextended_error_logging) 9922 strcat(qla4xxx_version_str, "-debug"); 9923 9924 qla4xxx_scsi_transport = 9925 iscsi_register_transport(&qla4xxx_iscsi_transport); 9926 if (!qla4xxx_scsi_transport){ 9927 ret = -ENODEV; 9928 goto release_srb_cache; 9929 } 9930 9931 ret = pci_register_driver(&qla4xxx_pci_driver); 9932 if (ret) 9933 goto unregister_transport; 9934 9935 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9936 return 0; 9937 9938 unregister_transport: 9939 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9940 release_srb_cache: 9941 kmem_cache_destroy(srb_cachep); 9942 no_srp_cache: 9943 return ret; 9944 } 9945 9946 static void __exit qla4xxx_module_exit(void) 9947 { 9948 pci_unregister_driver(&qla4xxx_pci_driver); 9949 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9950 kmem_cache_destroy(srb_cachep); 9951 } 9952 9953 module_init(qla4xxx_module_init); 9954 module_exit(qla4xxx_module_exit); 9955 9956 MODULE_AUTHOR("QLogic Corporation"); 9957 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9958 MODULE_LICENSE("GPL"); 9959 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9960