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