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_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 847 if (chap_table == NULL) 848 return -ENOMEM; 849 850 memset(chap_table, 0, sizeof(struct ql4_chap_table)); 851 852 if (is_qla80XX(ha)) 853 max_chap_entries = (ha->hw.flt_chap_size / 2) / 854 sizeof(struct ql4_chap_table); 855 else 856 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 857 858 if (chap_tbl_idx > max_chap_entries) { 859 ret = -EINVAL; 860 goto exit_delete_chap; 861 } 862 863 /* Check if chap index is in use. 864 * If chap is in use don't delet chap entry */ 865 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 866 if (ret) { 867 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 868 "delete from flash\n", chap_tbl_idx); 869 ret = -EBUSY; 870 goto exit_delete_chap; 871 } 872 873 chap_size = sizeof(struct ql4_chap_table); 874 if (is_qla40XX(ha)) 875 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 876 else { 877 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 878 /* flt_chap_size is CHAP table size for both ports 879 * so divide it by 2 to calculate the offset for second port 880 */ 881 if (ha->port_num == 1) 882 offset += (ha->hw.flt_chap_size / 2); 883 offset += (chap_tbl_idx * chap_size); 884 } 885 886 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 887 if (ret != QLA_SUCCESS) { 888 ret = -EINVAL; 889 goto exit_delete_chap; 890 } 891 892 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 893 __le16_to_cpu(chap_table->cookie))); 894 895 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 896 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 897 goto exit_delete_chap; 898 } 899 900 chap_table->cookie = __constant_cpu_to_le16(0xFFFF); 901 902 offset = FLASH_CHAP_OFFSET | 903 (chap_tbl_idx * sizeof(struct ql4_chap_table)); 904 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 905 FLASH_OPT_RMW_COMMIT); 906 if (ret == QLA_SUCCESS && ha->chap_list) { 907 mutex_lock(&ha->chap_sem); 908 /* Update ha chap_list cache */ 909 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 910 chap_table, sizeof(struct ql4_chap_table)); 911 mutex_unlock(&ha->chap_sem); 912 } 913 if (ret != QLA_SUCCESS) 914 ret = -EINVAL; 915 916 exit_delete_chap: 917 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 918 return ret; 919 } 920 921 /** 922 * qla4xxx_set_chap_entry - Make chap entry with given information 923 * @shost: pointer to host 924 * @data: chap info - credentials, index and type to make chap entry 925 * @len: length of data 926 * 927 * Add or update chap entry with the given information 928 **/ 929 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len) 930 { 931 struct scsi_qla_host *ha = to_qla_host(shost); 932 struct iscsi_chap_rec chap_rec; 933 struct ql4_chap_table *chap_entry = NULL; 934 struct iscsi_param_info *param_info; 935 struct nlattr *attr; 936 int max_chap_entries = 0; 937 int type; 938 int rem = len; 939 int rc = 0; 940 int size; 941 942 memset(&chap_rec, 0, sizeof(chap_rec)); 943 944 nla_for_each_attr(attr, data, len, rem) { 945 param_info = nla_data(attr); 946 947 switch (param_info->param) { 948 case ISCSI_CHAP_PARAM_INDEX: 949 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value; 950 break; 951 case ISCSI_CHAP_PARAM_CHAP_TYPE: 952 chap_rec.chap_type = param_info->value[0]; 953 break; 954 case ISCSI_CHAP_PARAM_USERNAME: 955 size = min_t(size_t, sizeof(chap_rec.username), 956 param_info->len); 957 memcpy(chap_rec.username, param_info->value, size); 958 break; 959 case ISCSI_CHAP_PARAM_PASSWORD: 960 size = min_t(size_t, sizeof(chap_rec.password), 961 param_info->len); 962 memcpy(chap_rec.password, param_info->value, size); 963 break; 964 case ISCSI_CHAP_PARAM_PASSWORD_LEN: 965 chap_rec.password_length = param_info->value[0]; 966 break; 967 default: 968 ql4_printk(KERN_ERR, ha, 969 "%s: No such sysfs attribute\n", __func__); 970 rc = -ENOSYS; 971 goto exit_set_chap; 972 }; 973 } 974 975 if (chap_rec.chap_type == CHAP_TYPE_IN) 976 type = BIDI_CHAP; 977 else 978 type = LOCAL_CHAP; 979 980 if (is_qla80XX(ha)) 981 max_chap_entries = (ha->hw.flt_chap_size / 2) / 982 sizeof(struct ql4_chap_table); 983 else 984 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 985 986 mutex_lock(&ha->chap_sem); 987 if (chap_rec.chap_tbl_idx < max_chap_entries) { 988 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx, 989 &chap_entry); 990 if (!rc) { 991 if (!(type == qla4xxx_get_chap_type(chap_entry))) { 992 ql4_printk(KERN_INFO, ha, 993 "Type mismatch for CHAP entry %d\n", 994 chap_rec.chap_tbl_idx); 995 rc = -EINVAL; 996 goto exit_unlock_chap; 997 } 998 999 /* If chap index is in use then don't modify it */ 1000 rc = qla4xxx_is_chap_active(shost, 1001 chap_rec.chap_tbl_idx); 1002 if (rc) { 1003 ql4_printk(KERN_INFO, ha, 1004 "CHAP entry %d is in use\n", 1005 chap_rec.chap_tbl_idx); 1006 rc = -EBUSY; 1007 goto exit_unlock_chap; 1008 } 1009 } 1010 } else { 1011 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx); 1012 if (rc) { 1013 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n"); 1014 rc = -EBUSY; 1015 goto exit_unlock_chap; 1016 } 1017 } 1018 1019 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password, 1020 chap_rec.chap_tbl_idx, type); 1021 1022 exit_unlock_chap: 1023 mutex_unlock(&ha->chap_sem); 1024 1025 exit_set_chap: 1026 return rc; 1027 } 1028 1029 1030 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len) 1031 { 1032 struct scsi_qla_host *ha = to_qla_host(shost); 1033 struct iscsi_offload_host_stats *host_stats = NULL; 1034 int host_stats_size; 1035 int ret = 0; 1036 int ddb_idx = 0; 1037 struct ql_iscsi_stats *ql_iscsi_stats = NULL; 1038 int stats_size; 1039 dma_addr_t iscsi_stats_dma; 1040 1041 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__)); 1042 1043 host_stats_size = sizeof(struct iscsi_offload_host_stats); 1044 1045 if (host_stats_size != len) { 1046 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n", 1047 __func__, len, host_stats_size); 1048 ret = -EINVAL; 1049 goto exit_host_stats; 1050 } 1051 host_stats = (struct iscsi_offload_host_stats *)buf; 1052 1053 if (!buf) { 1054 ret = -ENOMEM; 1055 goto exit_host_stats; 1056 } 1057 1058 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1059 1060 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1061 &iscsi_stats_dma, GFP_KERNEL); 1062 if (!ql_iscsi_stats) { 1063 ql4_printk(KERN_ERR, ha, 1064 "Unable to allocate memory for iscsi stats\n"); 1065 ret = -ENOMEM; 1066 goto exit_host_stats; 1067 } 1068 1069 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size, 1070 iscsi_stats_dma); 1071 if (ret != QLA_SUCCESS) { 1072 ql4_printk(KERN_ERR, ha, 1073 "Unable to retrieve iscsi stats\n"); 1074 ret = -EIO; 1075 goto exit_host_stats; 1076 } 1077 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames); 1078 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes); 1079 host_stats->mactx_multicast_frames = 1080 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames); 1081 host_stats->mactx_broadcast_frames = 1082 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames); 1083 host_stats->mactx_pause_frames = 1084 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames); 1085 host_stats->mactx_control_frames = 1086 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames); 1087 host_stats->mactx_deferral = 1088 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral); 1089 host_stats->mactx_excess_deferral = 1090 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral); 1091 host_stats->mactx_late_collision = 1092 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision); 1093 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort); 1094 host_stats->mactx_single_collision = 1095 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision); 1096 host_stats->mactx_multiple_collision = 1097 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision); 1098 host_stats->mactx_collision = 1099 le64_to_cpu(ql_iscsi_stats->mac_tx_collision); 1100 host_stats->mactx_frames_dropped = 1101 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped); 1102 host_stats->mactx_jumbo_frames = 1103 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames); 1104 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames); 1105 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes); 1106 host_stats->macrx_unknown_control_frames = 1107 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames); 1108 host_stats->macrx_pause_frames = 1109 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames); 1110 host_stats->macrx_control_frames = 1111 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames); 1112 host_stats->macrx_dribble = 1113 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble); 1114 host_stats->macrx_frame_length_error = 1115 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error); 1116 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber); 1117 host_stats->macrx_carrier_sense_error = 1118 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error); 1119 host_stats->macrx_frame_discarded = 1120 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded); 1121 host_stats->macrx_frames_dropped = 1122 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped); 1123 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error); 1124 host_stats->mac_encoding_error = 1125 le64_to_cpu(ql_iscsi_stats->mac_encoding_error); 1126 host_stats->macrx_length_error_large = 1127 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large); 1128 host_stats->macrx_length_error_small = 1129 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small); 1130 host_stats->macrx_multicast_frames = 1131 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames); 1132 host_stats->macrx_broadcast_frames = 1133 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames); 1134 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets); 1135 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes); 1136 host_stats->iptx_fragments = 1137 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments); 1138 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets); 1139 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes); 1140 host_stats->iprx_fragments = 1141 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments); 1142 host_stats->ip_datagram_reassembly = 1143 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly); 1144 host_stats->ip_invalid_address_error = 1145 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error); 1146 host_stats->ip_error_packets = 1147 le64_to_cpu(ql_iscsi_stats->ip_error_packets); 1148 host_stats->ip_fragrx_overlap = 1149 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap); 1150 host_stats->ip_fragrx_outoforder = 1151 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder); 1152 host_stats->ip_datagram_reassembly_timeout = 1153 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout); 1154 host_stats->ipv6tx_packets = 1155 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets); 1156 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes); 1157 host_stats->ipv6tx_fragments = 1158 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments); 1159 host_stats->ipv6rx_packets = 1160 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets); 1161 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes); 1162 host_stats->ipv6rx_fragments = 1163 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments); 1164 host_stats->ipv6_datagram_reassembly = 1165 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly); 1166 host_stats->ipv6_invalid_address_error = 1167 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error); 1168 host_stats->ipv6_error_packets = 1169 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets); 1170 host_stats->ipv6_fragrx_overlap = 1171 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap); 1172 host_stats->ipv6_fragrx_outoforder = 1173 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder); 1174 host_stats->ipv6_datagram_reassembly_timeout = 1175 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout); 1176 host_stats->tcptx_segments = 1177 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments); 1178 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes); 1179 host_stats->tcprx_segments = 1180 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments); 1181 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte); 1182 host_stats->tcp_duplicate_ack_retx = 1183 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx); 1184 host_stats->tcp_retx_timer_expired = 1185 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired); 1186 host_stats->tcprx_duplicate_ack = 1187 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack); 1188 host_stats->tcprx_pure_ackr = 1189 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr); 1190 host_stats->tcptx_delayed_ack = 1191 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack); 1192 host_stats->tcptx_pure_ack = 1193 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack); 1194 host_stats->tcprx_segment_error = 1195 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error); 1196 host_stats->tcprx_segment_outoforder = 1197 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder); 1198 host_stats->tcprx_window_probe = 1199 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe); 1200 host_stats->tcprx_window_update = 1201 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update); 1202 host_stats->tcptx_window_probe_persist = 1203 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist); 1204 host_stats->ecc_error_correction = 1205 le64_to_cpu(ql_iscsi_stats->ecc_error_correction); 1206 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx); 1207 host_stats->iscsi_data_bytes_tx = 1208 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx); 1209 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx); 1210 host_stats->iscsi_data_bytes_rx = 1211 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx); 1212 host_stats->iscsi_io_completed = 1213 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed); 1214 host_stats->iscsi_unexpected_io_rx = 1215 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx); 1216 host_stats->iscsi_format_error = 1217 le64_to_cpu(ql_iscsi_stats->iscsi_format_error); 1218 host_stats->iscsi_hdr_digest_error = 1219 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error); 1220 host_stats->iscsi_data_digest_error = 1221 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error); 1222 host_stats->iscsi_sequence_error = 1223 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error); 1224 exit_host_stats: 1225 if (ql_iscsi_stats) 1226 dma_free_coherent(&ha->pdev->dev, host_stats_size, 1227 ql_iscsi_stats, iscsi_stats_dma); 1228 1229 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n", 1230 __func__); 1231 return ret; 1232 } 1233 1234 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 1235 enum iscsi_param_type param_type, 1236 int param, char *buf) 1237 { 1238 struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 1239 struct scsi_qla_host *ha = to_qla_host(shost); 1240 int ival; 1241 char *pval = NULL; 1242 int len = -ENOSYS; 1243 1244 if (param_type == ISCSI_NET_PARAM) { 1245 switch (param) { 1246 case ISCSI_NET_PARAM_IPV4_ADDR: 1247 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1248 break; 1249 case ISCSI_NET_PARAM_IPV4_SUBNET: 1250 len = sprintf(buf, "%pI4\n", 1251 &ha->ip_config.subnet_mask); 1252 break; 1253 case ISCSI_NET_PARAM_IPV4_GW: 1254 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 1255 break; 1256 case ISCSI_NET_PARAM_IFACE_ENABLE: 1257 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1258 OP_STATE(ha->ip_config.ipv4_options, 1259 IPOPT_IPV4_PROTOCOL_ENABLE, pval); 1260 } else { 1261 OP_STATE(ha->ip_config.ipv6_options, 1262 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval); 1263 } 1264 1265 len = sprintf(buf, "%s\n", pval); 1266 break; 1267 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1268 len = sprintf(buf, "%s\n", 1269 (ha->ip_config.tcp_options & 1270 TCPOPT_DHCP_ENABLE) ? 1271 "dhcp" : "static"); 1272 break; 1273 case ISCSI_NET_PARAM_IPV6_ADDR: 1274 if (iface->iface_num == 0) 1275 len = sprintf(buf, "%pI6\n", 1276 &ha->ip_config.ipv6_addr0); 1277 if (iface->iface_num == 1) 1278 len = sprintf(buf, "%pI6\n", 1279 &ha->ip_config.ipv6_addr1); 1280 break; 1281 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1282 len = sprintf(buf, "%pI6\n", 1283 &ha->ip_config.ipv6_link_local_addr); 1284 break; 1285 case ISCSI_NET_PARAM_IPV6_ROUTER: 1286 len = sprintf(buf, "%pI6\n", 1287 &ha->ip_config.ipv6_default_router_addr); 1288 break; 1289 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1290 pval = (ha->ip_config.ipv6_addl_options & 1291 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 1292 "nd" : "static"; 1293 1294 len = sprintf(buf, "%s\n", pval); 1295 break; 1296 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1297 pval = (ha->ip_config.ipv6_addl_options & 1298 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 1299 "auto" : "static"; 1300 1301 len = sprintf(buf, "%s\n", pval); 1302 break; 1303 case ISCSI_NET_PARAM_VLAN_ID: 1304 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1305 ival = ha->ip_config.ipv4_vlan_tag & 1306 ISCSI_MAX_VLAN_ID; 1307 else 1308 ival = ha->ip_config.ipv6_vlan_tag & 1309 ISCSI_MAX_VLAN_ID; 1310 1311 len = sprintf(buf, "%d\n", ival); 1312 break; 1313 case ISCSI_NET_PARAM_VLAN_PRIORITY: 1314 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1315 ival = (ha->ip_config.ipv4_vlan_tag >> 13) & 1316 ISCSI_MAX_VLAN_PRIORITY; 1317 else 1318 ival = (ha->ip_config.ipv6_vlan_tag >> 13) & 1319 ISCSI_MAX_VLAN_PRIORITY; 1320 1321 len = sprintf(buf, "%d\n", ival); 1322 break; 1323 case ISCSI_NET_PARAM_VLAN_ENABLED: 1324 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1325 OP_STATE(ha->ip_config.ipv4_options, 1326 IPOPT_VLAN_TAGGING_ENABLE, pval); 1327 } else { 1328 OP_STATE(ha->ip_config.ipv6_options, 1329 IPV6_OPT_VLAN_TAGGING_ENABLE, pval); 1330 } 1331 len = sprintf(buf, "%s\n", pval); 1332 break; 1333 case ISCSI_NET_PARAM_MTU: 1334 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 1335 break; 1336 case ISCSI_NET_PARAM_PORT: 1337 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1338 len = sprintf(buf, "%d\n", 1339 ha->ip_config.ipv4_port); 1340 else 1341 len = sprintf(buf, "%d\n", 1342 ha->ip_config.ipv6_port); 1343 break; 1344 case ISCSI_NET_PARAM_IPADDR_STATE: 1345 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1346 pval = iscsi_get_ipaddress_state_name( 1347 ha->ip_config.ipv4_addr_state); 1348 } else { 1349 if (iface->iface_num == 0) 1350 pval = iscsi_get_ipaddress_state_name( 1351 ha->ip_config.ipv6_addr0_state); 1352 else if (iface->iface_num == 1) 1353 pval = iscsi_get_ipaddress_state_name( 1354 ha->ip_config.ipv6_addr1_state); 1355 } 1356 1357 len = sprintf(buf, "%s\n", pval); 1358 break; 1359 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 1360 pval = iscsi_get_ipaddress_state_name( 1361 ha->ip_config.ipv6_link_local_state); 1362 len = sprintf(buf, "%s\n", pval); 1363 break; 1364 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 1365 pval = iscsi_get_router_state_name( 1366 ha->ip_config.ipv6_default_router_state); 1367 len = sprintf(buf, "%s\n", pval); 1368 break; 1369 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 1370 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1371 OP_STATE(~ha->ip_config.tcp_options, 1372 TCPOPT_DELAYED_ACK_DISABLE, pval); 1373 } else { 1374 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1375 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval); 1376 } 1377 len = sprintf(buf, "%s\n", pval); 1378 break; 1379 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 1380 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1381 OP_STATE(~ha->ip_config.tcp_options, 1382 TCPOPT_NAGLE_ALGO_DISABLE, pval); 1383 } else { 1384 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1385 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval); 1386 } 1387 len = sprintf(buf, "%s\n", pval); 1388 break; 1389 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 1390 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1391 OP_STATE(~ha->ip_config.tcp_options, 1392 TCPOPT_WINDOW_SCALE_DISABLE, pval); 1393 } else { 1394 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1395 IPV6_TCPOPT_WINDOW_SCALE_DISABLE, 1396 pval); 1397 } 1398 len = sprintf(buf, "%s\n", pval); 1399 break; 1400 case ISCSI_NET_PARAM_TCP_WSF: 1401 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1402 len = sprintf(buf, "%d\n", 1403 ha->ip_config.tcp_wsf); 1404 else 1405 len = sprintf(buf, "%d\n", 1406 ha->ip_config.ipv6_tcp_wsf); 1407 break; 1408 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 1409 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1410 ival = (ha->ip_config.tcp_options & 1411 TCPOPT_TIMER_SCALE) >> 1; 1412 else 1413 ival = (ha->ip_config.ipv6_tcp_options & 1414 IPV6_TCPOPT_TIMER_SCALE) >> 1; 1415 1416 len = sprintf(buf, "%d\n", ival); 1417 break; 1418 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 1419 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1420 OP_STATE(ha->ip_config.tcp_options, 1421 TCPOPT_TIMESTAMP_ENABLE, pval); 1422 } else { 1423 OP_STATE(ha->ip_config.ipv6_tcp_options, 1424 IPV6_TCPOPT_TIMESTAMP_EN, pval); 1425 } 1426 len = sprintf(buf, "%s\n", pval); 1427 break; 1428 case ISCSI_NET_PARAM_CACHE_ID: 1429 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1430 len = sprintf(buf, "%d\n", 1431 ha->ip_config.ipv4_cache_id); 1432 else 1433 len = sprintf(buf, "%d\n", 1434 ha->ip_config.ipv6_cache_id); 1435 break; 1436 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 1437 OP_STATE(ha->ip_config.tcp_options, 1438 TCPOPT_DNS_SERVER_IP_EN, pval); 1439 1440 len = sprintf(buf, "%s\n", pval); 1441 break; 1442 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 1443 OP_STATE(ha->ip_config.tcp_options, 1444 TCPOPT_SLP_DA_INFO_EN, pval); 1445 1446 len = sprintf(buf, "%s\n", pval); 1447 break; 1448 case ISCSI_NET_PARAM_IPV4_TOS_EN: 1449 OP_STATE(ha->ip_config.ipv4_options, 1450 IPOPT_IPV4_TOS_EN, pval); 1451 1452 len = sprintf(buf, "%s\n", pval); 1453 break; 1454 case ISCSI_NET_PARAM_IPV4_TOS: 1455 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos); 1456 break; 1457 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 1458 OP_STATE(ha->ip_config.ipv4_options, 1459 IPOPT_GRAT_ARP_EN, pval); 1460 1461 len = sprintf(buf, "%s\n", pval); 1462 break; 1463 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 1464 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN, 1465 pval); 1466 1467 len = sprintf(buf, "%s\n", pval); 1468 break; 1469 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 1470 pval = (ha->ip_config.ipv4_alt_cid_len) ? 1471 (char *)ha->ip_config.ipv4_alt_cid : ""; 1472 1473 len = sprintf(buf, "%s\n", pval); 1474 break; 1475 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 1476 OP_STATE(ha->ip_config.ipv4_options, 1477 IPOPT_REQ_VID_EN, pval); 1478 1479 len = sprintf(buf, "%s\n", pval); 1480 break; 1481 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 1482 OP_STATE(ha->ip_config.ipv4_options, 1483 IPOPT_USE_VID_EN, pval); 1484 1485 len = sprintf(buf, "%s\n", pval); 1486 break; 1487 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 1488 pval = (ha->ip_config.ipv4_vid_len) ? 1489 (char *)ha->ip_config.ipv4_vid : ""; 1490 1491 len = sprintf(buf, "%s\n", pval); 1492 break; 1493 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 1494 OP_STATE(ha->ip_config.ipv4_options, 1495 IPOPT_LEARN_IQN_EN, pval); 1496 1497 len = sprintf(buf, "%s\n", pval); 1498 break; 1499 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 1500 OP_STATE(~ha->ip_config.ipv4_options, 1501 IPOPT_FRAGMENTATION_DISABLE, pval); 1502 1503 len = sprintf(buf, "%s\n", pval); 1504 break; 1505 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 1506 OP_STATE(ha->ip_config.ipv4_options, 1507 IPOPT_IN_FORWARD_EN, pval); 1508 1509 len = sprintf(buf, "%s\n", pval); 1510 break; 1511 case ISCSI_NET_PARAM_REDIRECT_EN: 1512 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1513 OP_STATE(ha->ip_config.ipv4_options, 1514 IPOPT_ARP_REDIRECT_EN, pval); 1515 } else { 1516 OP_STATE(ha->ip_config.ipv6_options, 1517 IPV6_OPT_REDIRECT_EN, pval); 1518 } 1519 len = sprintf(buf, "%s\n", pval); 1520 break; 1521 case ISCSI_NET_PARAM_IPV4_TTL: 1522 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl); 1523 break; 1524 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 1525 OP_STATE(ha->ip_config.ipv6_options, 1526 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval); 1527 1528 len = sprintf(buf, "%s\n", pval); 1529 break; 1530 case ISCSI_NET_PARAM_IPV6_MLD_EN: 1531 OP_STATE(ha->ip_config.ipv6_addl_options, 1532 IPV6_ADDOPT_MLD_EN, pval); 1533 1534 len = sprintf(buf, "%s\n", pval); 1535 break; 1536 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 1537 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl); 1538 break; 1539 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 1540 len = sprintf(buf, "%d\n", 1541 ha->ip_config.ipv6_traffic_class); 1542 break; 1543 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 1544 len = sprintf(buf, "%d\n", 1545 ha->ip_config.ipv6_hop_limit); 1546 break; 1547 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 1548 len = sprintf(buf, "%d\n", 1549 ha->ip_config.ipv6_nd_reach_time); 1550 break; 1551 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 1552 len = sprintf(buf, "%d\n", 1553 ha->ip_config.ipv6_nd_rexmit_timer); 1554 break; 1555 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 1556 len = sprintf(buf, "%d\n", 1557 ha->ip_config.ipv6_nd_stale_timeout); 1558 break; 1559 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 1560 len = sprintf(buf, "%d\n", 1561 ha->ip_config.ipv6_dup_addr_detect_count); 1562 break; 1563 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 1564 len = sprintf(buf, "%d\n", 1565 ha->ip_config.ipv6_gw_advrt_mtu); 1566 break; 1567 default: 1568 len = -ENOSYS; 1569 } 1570 } else if (param_type == ISCSI_IFACE_PARAM) { 1571 switch (param) { 1572 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 1573 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout); 1574 break; 1575 case ISCSI_IFACE_PARAM_HDRDGST_EN: 1576 OP_STATE(ha->ip_config.iscsi_options, 1577 ISCSIOPTS_HEADER_DIGEST_EN, pval); 1578 1579 len = sprintf(buf, "%s\n", pval); 1580 break; 1581 case ISCSI_IFACE_PARAM_DATADGST_EN: 1582 OP_STATE(ha->ip_config.iscsi_options, 1583 ISCSIOPTS_DATA_DIGEST_EN, pval); 1584 1585 len = sprintf(buf, "%s\n", pval); 1586 break; 1587 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 1588 OP_STATE(ha->ip_config.iscsi_options, 1589 ISCSIOPTS_IMMEDIATE_DATA_EN, pval); 1590 1591 len = sprintf(buf, "%s\n", pval); 1592 break; 1593 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 1594 OP_STATE(ha->ip_config.iscsi_options, 1595 ISCSIOPTS_INITIAL_R2T_EN, pval); 1596 1597 len = sprintf(buf, "%s\n", pval); 1598 break; 1599 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 1600 OP_STATE(ha->ip_config.iscsi_options, 1601 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval); 1602 1603 len = sprintf(buf, "%s\n", pval); 1604 break; 1605 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 1606 OP_STATE(ha->ip_config.iscsi_options, 1607 ISCSIOPTS_DATA_PDU_INORDER_EN, pval); 1608 1609 len = sprintf(buf, "%s\n", pval); 1610 break; 1611 case ISCSI_IFACE_PARAM_ERL: 1612 len = sprintf(buf, "%d\n", 1613 (ha->ip_config.iscsi_options & 1614 ISCSIOPTS_ERL)); 1615 break; 1616 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 1617 len = sprintf(buf, "%u\n", 1618 ha->ip_config.iscsi_max_pdu_size * 1619 BYTE_UNITS); 1620 break; 1621 case ISCSI_IFACE_PARAM_FIRST_BURST: 1622 len = sprintf(buf, "%u\n", 1623 ha->ip_config.iscsi_first_burst_len * 1624 BYTE_UNITS); 1625 break; 1626 case ISCSI_IFACE_PARAM_MAX_R2T: 1627 len = sprintf(buf, "%d\n", 1628 ha->ip_config.iscsi_max_outstnd_r2t); 1629 break; 1630 case ISCSI_IFACE_PARAM_MAX_BURST: 1631 len = sprintf(buf, "%u\n", 1632 ha->ip_config.iscsi_max_burst_len * 1633 BYTE_UNITS); 1634 break; 1635 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 1636 OP_STATE(ha->ip_config.iscsi_options, 1637 ISCSIOPTS_CHAP_AUTH_EN, pval); 1638 1639 len = sprintf(buf, "%s\n", pval); 1640 break; 1641 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 1642 OP_STATE(ha->ip_config.iscsi_options, 1643 ISCSIOPTS_BIDI_CHAP_EN, pval); 1644 1645 len = sprintf(buf, "%s\n", pval); 1646 break; 1647 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 1648 OP_STATE(ha->ip_config.iscsi_options, 1649 ISCSIOPTS_DISCOVERY_AUTH_EN, pval); 1650 1651 len = sprintf(buf, "%s\n", pval); 1652 break; 1653 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 1654 OP_STATE(ha->ip_config.iscsi_options, 1655 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval); 1656 1657 len = sprintf(buf, "%s\n", pval); 1658 break; 1659 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 1660 OP_STATE(ha->ip_config.iscsi_options, 1661 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval); 1662 1663 len = sprintf(buf, "%s\n", pval); 1664 break; 1665 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 1666 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name); 1667 break; 1668 default: 1669 len = -ENOSYS; 1670 } 1671 } 1672 1673 return len; 1674 } 1675 1676 static struct iscsi_endpoint * 1677 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 1678 int non_blocking) 1679 { 1680 int ret; 1681 struct iscsi_endpoint *ep; 1682 struct qla_endpoint *qla_ep; 1683 struct scsi_qla_host *ha; 1684 struct sockaddr_in *addr; 1685 struct sockaddr_in6 *addr6; 1686 1687 if (!shost) { 1688 ret = -ENXIO; 1689 pr_err("%s: shost is NULL\n", __func__); 1690 return ERR_PTR(ret); 1691 } 1692 1693 ha = iscsi_host_priv(shost); 1694 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 1695 if (!ep) { 1696 ret = -ENOMEM; 1697 return ERR_PTR(ret); 1698 } 1699 1700 qla_ep = ep->dd_data; 1701 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 1702 if (dst_addr->sa_family == AF_INET) { 1703 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 1704 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 1705 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 1706 (char *)&addr->sin_addr)); 1707 } else if (dst_addr->sa_family == AF_INET6) { 1708 memcpy(&qla_ep->dst_addr, dst_addr, 1709 sizeof(struct sockaddr_in6)); 1710 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 1711 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 1712 (char *)&addr6->sin6_addr)); 1713 } else { 1714 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n", 1715 __func__); 1716 } 1717 1718 qla_ep->host = shost; 1719 1720 return ep; 1721 } 1722 1723 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 1724 { 1725 struct qla_endpoint *qla_ep; 1726 struct scsi_qla_host *ha; 1727 int ret = 0; 1728 1729 qla_ep = ep->dd_data; 1730 ha = to_qla_host(qla_ep->host); 1731 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no)); 1732 1733 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 1734 ret = 1; 1735 1736 return ret; 1737 } 1738 1739 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 1740 { 1741 struct qla_endpoint *qla_ep; 1742 struct scsi_qla_host *ha; 1743 1744 qla_ep = ep->dd_data; 1745 ha = to_qla_host(qla_ep->host); 1746 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1747 ha->host_no)); 1748 iscsi_destroy_endpoint(ep); 1749 } 1750 1751 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 1752 enum iscsi_param param, 1753 char *buf) 1754 { 1755 struct qla_endpoint *qla_ep = ep->dd_data; 1756 struct sockaddr *dst_addr; 1757 struct scsi_qla_host *ha; 1758 1759 if (!qla_ep) 1760 return -ENOTCONN; 1761 1762 ha = to_qla_host(qla_ep->host); 1763 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1764 ha->host_no)); 1765 1766 switch (param) { 1767 case ISCSI_PARAM_CONN_PORT: 1768 case ISCSI_PARAM_CONN_ADDRESS: 1769 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1770 if (!dst_addr) 1771 return -ENOTCONN; 1772 1773 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1774 &qla_ep->dst_addr, param, buf); 1775 default: 1776 return -ENOSYS; 1777 } 1778 } 1779 1780 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 1781 struct iscsi_stats *stats) 1782 { 1783 struct iscsi_session *sess; 1784 struct iscsi_cls_session *cls_sess; 1785 struct ddb_entry *ddb_entry; 1786 struct scsi_qla_host *ha; 1787 struct ql_iscsi_stats *ql_iscsi_stats; 1788 int stats_size; 1789 int ret; 1790 dma_addr_t iscsi_stats_dma; 1791 1792 cls_sess = iscsi_conn_to_session(cls_conn); 1793 sess = cls_sess->dd_data; 1794 ddb_entry = sess->dd_data; 1795 ha = ddb_entry->ha; 1796 1797 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1798 ha->host_no)); 1799 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1800 /* Allocate memory */ 1801 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1802 &iscsi_stats_dma, GFP_KERNEL); 1803 if (!ql_iscsi_stats) { 1804 ql4_printk(KERN_ERR, ha, 1805 "Unable to allocate memory for iscsi stats\n"); 1806 goto exit_get_stats; 1807 } 1808 1809 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 1810 iscsi_stats_dma); 1811 if (ret != QLA_SUCCESS) { 1812 ql4_printk(KERN_ERR, ha, 1813 "Unable to retrieve iscsi stats\n"); 1814 goto free_stats; 1815 } 1816 1817 /* octets */ 1818 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 1819 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 1820 /* xmit pdus */ 1821 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 1822 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 1823 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 1824 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 1825 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 1826 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 1827 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 1828 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 1829 /* recv pdus */ 1830 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 1831 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 1832 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 1833 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 1834 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 1835 stats->logoutrsp_pdus = 1836 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 1837 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 1838 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 1839 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 1840 1841 free_stats: 1842 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 1843 iscsi_stats_dma); 1844 exit_get_stats: 1845 return; 1846 } 1847 1848 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 1849 { 1850 struct iscsi_cls_session *session; 1851 struct iscsi_session *sess; 1852 unsigned long flags; 1853 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 1854 1855 session = starget_to_session(scsi_target(sc->device)); 1856 sess = session->dd_data; 1857 1858 spin_lock_irqsave(&session->lock, flags); 1859 if (session->state == ISCSI_SESSION_FAILED) 1860 ret = BLK_EH_RESET_TIMER; 1861 spin_unlock_irqrestore(&session->lock, flags); 1862 1863 return ret; 1864 } 1865 1866 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 1867 { 1868 struct scsi_qla_host *ha = to_qla_host(shost); 1869 struct iscsi_cls_host *ihost = shost->shost_data; 1870 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 1871 1872 qla4xxx_get_firmware_state(ha); 1873 1874 switch (ha->addl_fw_state & 0x0F00) { 1875 case FW_ADDSTATE_LINK_SPEED_10MBPS: 1876 speed = ISCSI_PORT_SPEED_10MBPS; 1877 break; 1878 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1879 speed = ISCSI_PORT_SPEED_100MBPS; 1880 break; 1881 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1882 speed = ISCSI_PORT_SPEED_1GBPS; 1883 break; 1884 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1885 speed = ISCSI_PORT_SPEED_10GBPS; 1886 break; 1887 } 1888 ihost->port_speed = speed; 1889 } 1890 1891 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1892 { 1893 struct scsi_qla_host *ha = to_qla_host(shost); 1894 struct iscsi_cls_host *ihost = shost->shost_data; 1895 uint32_t state = ISCSI_PORT_STATE_DOWN; 1896 1897 if (test_bit(AF_LINK_UP, &ha->flags)) 1898 state = ISCSI_PORT_STATE_UP; 1899 1900 ihost->port_state = state; 1901 } 1902 1903 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1904 enum iscsi_host_param param, char *buf) 1905 { 1906 struct scsi_qla_host *ha = to_qla_host(shost); 1907 int len; 1908 1909 switch (param) { 1910 case ISCSI_HOST_PARAM_HWADDRESS: 1911 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1912 break; 1913 case ISCSI_HOST_PARAM_IPADDRESS: 1914 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1915 break; 1916 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1917 len = sprintf(buf, "%s\n", ha->name_string); 1918 break; 1919 case ISCSI_HOST_PARAM_PORT_STATE: 1920 qla4xxx_set_port_state(shost); 1921 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1922 break; 1923 case ISCSI_HOST_PARAM_PORT_SPEED: 1924 qla4xxx_set_port_speed(shost); 1925 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1926 break; 1927 default: 1928 return -ENOSYS; 1929 } 1930 1931 return len; 1932 } 1933 1934 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1935 { 1936 if (ha->iface_ipv4) 1937 return; 1938 1939 /* IPv4 */ 1940 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1941 &qla4xxx_iscsi_transport, 1942 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1943 if (!ha->iface_ipv4) 1944 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1945 "iface0.\n"); 1946 } 1947 1948 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1949 { 1950 if (!ha->iface_ipv6_0) 1951 /* IPv6 iface-0 */ 1952 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1953 &qla4xxx_iscsi_transport, 1954 ISCSI_IFACE_TYPE_IPV6, 0, 1955 0); 1956 if (!ha->iface_ipv6_0) 1957 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1958 "iface0.\n"); 1959 1960 if (!ha->iface_ipv6_1) 1961 /* IPv6 iface-1 */ 1962 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1963 &qla4xxx_iscsi_transport, 1964 ISCSI_IFACE_TYPE_IPV6, 1, 1965 0); 1966 if (!ha->iface_ipv6_1) 1967 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1968 "iface1.\n"); 1969 } 1970 1971 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 1972 { 1973 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 1974 qla4xxx_create_ipv4_iface(ha); 1975 1976 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 1977 qla4xxx_create_ipv6_iface(ha); 1978 } 1979 1980 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 1981 { 1982 if (ha->iface_ipv4) { 1983 iscsi_destroy_iface(ha->iface_ipv4); 1984 ha->iface_ipv4 = NULL; 1985 } 1986 } 1987 1988 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 1989 { 1990 if (ha->iface_ipv6_0) { 1991 iscsi_destroy_iface(ha->iface_ipv6_0); 1992 ha->iface_ipv6_0 = NULL; 1993 } 1994 if (ha->iface_ipv6_1) { 1995 iscsi_destroy_iface(ha->iface_ipv6_1); 1996 ha->iface_ipv6_1 = NULL; 1997 } 1998 } 1999 2000 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 2001 { 2002 qla4xxx_destroy_ipv4_iface(ha); 2003 qla4xxx_destroy_ipv6_iface(ha); 2004 } 2005 2006 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 2007 struct iscsi_iface_param_info *iface_param, 2008 struct addr_ctrl_blk *init_fw_cb) 2009 { 2010 /* 2011 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 2012 * iface_num 1 is valid only for IPv6 Addr. 2013 */ 2014 switch (iface_param->param) { 2015 case ISCSI_NET_PARAM_IPV6_ADDR: 2016 if (iface_param->iface_num & 0x1) 2017 /* IPv6 Addr 1 */ 2018 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 2019 sizeof(init_fw_cb->ipv6_addr1)); 2020 else 2021 /* IPv6 Addr 0 */ 2022 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 2023 sizeof(init_fw_cb->ipv6_addr0)); 2024 break; 2025 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 2026 if (iface_param->iface_num & 0x1) 2027 break; 2028 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 2029 sizeof(init_fw_cb->ipv6_if_id)); 2030 break; 2031 case ISCSI_NET_PARAM_IPV6_ROUTER: 2032 if (iface_param->iface_num & 0x1) 2033 break; 2034 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 2035 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2036 break; 2037 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 2038 /* Autocfg applies to even interface */ 2039 if (iface_param->iface_num & 0x1) 2040 break; 2041 2042 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 2043 init_fw_cb->ipv6_addtl_opts &= 2044 cpu_to_le16( 2045 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2046 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 2047 init_fw_cb->ipv6_addtl_opts |= 2048 cpu_to_le16( 2049 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2050 else 2051 ql4_printk(KERN_ERR, ha, 2052 "Invalid autocfg setting for IPv6 addr\n"); 2053 break; 2054 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2055 /* Autocfg applies to even interface */ 2056 if (iface_param->iface_num & 0x1) 2057 break; 2058 2059 if (iface_param->value[0] == 2060 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 2061 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 2062 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2063 else if (iface_param->value[0] == 2064 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 2065 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 2066 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2067 else 2068 ql4_printk(KERN_ERR, ha, 2069 "Invalid autocfg setting for IPv6 linklocal addr\n"); 2070 break; 2071 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 2072 /* Autocfg applies to even interface */ 2073 if (iface_param->iface_num & 0x1) 2074 break; 2075 2076 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 2077 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 2078 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2079 break; 2080 case ISCSI_NET_PARAM_IFACE_ENABLE: 2081 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2082 init_fw_cb->ipv6_opts |= 2083 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 2084 qla4xxx_create_ipv6_iface(ha); 2085 } else { 2086 init_fw_cb->ipv6_opts &= 2087 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 2088 0xFFFF); 2089 qla4xxx_destroy_ipv6_iface(ha); 2090 } 2091 break; 2092 case ISCSI_NET_PARAM_VLAN_TAG: 2093 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 2094 break; 2095 init_fw_cb->ipv6_vlan_tag = 2096 cpu_to_be16(*(uint16_t *)iface_param->value); 2097 break; 2098 case ISCSI_NET_PARAM_VLAN_ENABLED: 2099 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2100 init_fw_cb->ipv6_opts |= 2101 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 2102 else 2103 init_fw_cb->ipv6_opts &= 2104 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 2105 break; 2106 case ISCSI_NET_PARAM_MTU: 2107 init_fw_cb->eth_mtu_size = 2108 cpu_to_le16(*(uint16_t *)iface_param->value); 2109 break; 2110 case ISCSI_NET_PARAM_PORT: 2111 /* Autocfg applies to even interface */ 2112 if (iface_param->iface_num & 0x1) 2113 break; 2114 2115 init_fw_cb->ipv6_port = 2116 cpu_to_le16(*(uint16_t *)iface_param->value); 2117 break; 2118 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2119 if (iface_param->iface_num & 0x1) 2120 break; 2121 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2122 init_fw_cb->ipv6_tcp_opts |= 2123 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2124 else 2125 init_fw_cb->ipv6_tcp_opts &= 2126 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE & 2127 0xFFFF); 2128 break; 2129 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2130 if (iface_param->iface_num & 0x1) 2131 break; 2132 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2133 init_fw_cb->ipv6_tcp_opts |= 2134 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2135 else 2136 init_fw_cb->ipv6_tcp_opts &= 2137 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2138 break; 2139 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2140 if (iface_param->iface_num & 0x1) 2141 break; 2142 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2143 init_fw_cb->ipv6_tcp_opts |= 2144 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2145 else 2146 init_fw_cb->ipv6_tcp_opts &= 2147 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2148 break; 2149 case ISCSI_NET_PARAM_TCP_WSF: 2150 if (iface_param->iface_num & 0x1) 2151 break; 2152 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; 2153 break; 2154 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2155 if (iface_param->iface_num & 0x1) 2156 break; 2157 init_fw_cb->ipv6_tcp_opts &= 2158 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); 2159 init_fw_cb->ipv6_tcp_opts |= 2160 cpu_to_le16((iface_param->value[0] << 1) & 2161 IPV6_TCPOPT_TIMER_SCALE); 2162 break; 2163 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2164 if (iface_param->iface_num & 0x1) 2165 break; 2166 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2167 init_fw_cb->ipv6_tcp_opts |= 2168 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); 2169 else 2170 init_fw_cb->ipv6_tcp_opts &= 2171 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); 2172 break; 2173 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 2174 if (iface_param->iface_num & 0x1) 2175 break; 2176 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2177 init_fw_cb->ipv6_opts |= 2178 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2179 else 2180 init_fw_cb->ipv6_opts &= 2181 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2182 break; 2183 case ISCSI_NET_PARAM_REDIRECT_EN: 2184 if (iface_param->iface_num & 0x1) 2185 break; 2186 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2187 init_fw_cb->ipv6_opts |= 2188 cpu_to_le16(IPV6_OPT_REDIRECT_EN); 2189 else 2190 init_fw_cb->ipv6_opts &= 2191 cpu_to_le16(~IPV6_OPT_REDIRECT_EN); 2192 break; 2193 case ISCSI_NET_PARAM_IPV6_MLD_EN: 2194 if (iface_param->iface_num & 0x1) 2195 break; 2196 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2197 init_fw_cb->ipv6_addtl_opts |= 2198 cpu_to_le16(IPV6_ADDOPT_MLD_EN); 2199 else 2200 init_fw_cb->ipv6_addtl_opts &= 2201 cpu_to_le16(~IPV6_ADDOPT_MLD_EN); 2202 break; 2203 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 2204 if (iface_param->iface_num & 0x1) 2205 break; 2206 init_fw_cb->ipv6_flow_lbl = 2207 cpu_to_le16(*(uint16_t *)iface_param->value); 2208 break; 2209 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 2210 if (iface_param->iface_num & 0x1) 2211 break; 2212 init_fw_cb->ipv6_traffic_class = iface_param->value[0]; 2213 break; 2214 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 2215 if (iface_param->iface_num & 0x1) 2216 break; 2217 init_fw_cb->ipv6_hop_limit = iface_param->value[0]; 2218 break; 2219 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 2220 if (iface_param->iface_num & 0x1) 2221 break; 2222 init_fw_cb->ipv6_nd_reach_time = 2223 cpu_to_le32(*(uint32_t *)iface_param->value); 2224 break; 2225 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 2226 if (iface_param->iface_num & 0x1) 2227 break; 2228 init_fw_cb->ipv6_nd_rexmit_timer = 2229 cpu_to_le32(*(uint32_t *)iface_param->value); 2230 break; 2231 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 2232 if (iface_param->iface_num & 0x1) 2233 break; 2234 init_fw_cb->ipv6_nd_stale_timeout = 2235 cpu_to_le32(*(uint32_t *)iface_param->value); 2236 break; 2237 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 2238 if (iface_param->iface_num & 0x1) 2239 break; 2240 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; 2241 break; 2242 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 2243 if (iface_param->iface_num & 0x1) 2244 break; 2245 init_fw_cb->ipv6_gw_advrt_mtu = 2246 cpu_to_le32(*(uint32_t *)iface_param->value); 2247 break; 2248 default: 2249 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 2250 iface_param->param); 2251 break; 2252 } 2253 } 2254 2255 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 2256 struct iscsi_iface_param_info *iface_param, 2257 struct addr_ctrl_blk *init_fw_cb) 2258 { 2259 switch (iface_param->param) { 2260 case ISCSI_NET_PARAM_IPV4_ADDR: 2261 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 2262 sizeof(init_fw_cb->ipv4_addr)); 2263 break; 2264 case ISCSI_NET_PARAM_IPV4_SUBNET: 2265 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 2266 sizeof(init_fw_cb->ipv4_subnet)); 2267 break; 2268 case ISCSI_NET_PARAM_IPV4_GW: 2269 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 2270 sizeof(init_fw_cb->ipv4_gw_addr)); 2271 break; 2272 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 2273 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 2274 init_fw_cb->ipv4_tcp_opts |= 2275 cpu_to_le16(TCPOPT_DHCP_ENABLE); 2276 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 2277 init_fw_cb->ipv4_tcp_opts &= 2278 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 2279 else 2280 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 2281 break; 2282 case ISCSI_NET_PARAM_IFACE_ENABLE: 2283 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2284 init_fw_cb->ipv4_ip_opts |= 2285 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 2286 qla4xxx_create_ipv4_iface(ha); 2287 } else { 2288 init_fw_cb->ipv4_ip_opts &= 2289 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 2290 0xFFFF); 2291 qla4xxx_destroy_ipv4_iface(ha); 2292 } 2293 break; 2294 case ISCSI_NET_PARAM_VLAN_TAG: 2295 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 2296 break; 2297 init_fw_cb->ipv4_vlan_tag = 2298 cpu_to_be16(*(uint16_t *)iface_param->value); 2299 break; 2300 case ISCSI_NET_PARAM_VLAN_ENABLED: 2301 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2302 init_fw_cb->ipv4_ip_opts |= 2303 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 2304 else 2305 init_fw_cb->ipv4_ip_opts &= 2306 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 2307 break; 2308 case ISCSI_NET_PARAM_MTU: 2309 init_fw_cb->eth_mtu_size = 2310 cpu_to_le16(*(uint16_t *)iface_param->value); 2311 break; 2312 case ISCSI_NET_PARAM_PORT: 2313 init_fw_cb->ipv4_port = 2314 cpu_to_le16(*(uint16_t *)iface_param->value); 2315 break; 2316 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2317 if (iface_param->iface_num & 0x1) 2318 break; 2319 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2320 init_fw_cb->ipv4_tcp_opts |= 2321 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); 2322 else 2323 init_fw_cb->ipv4_tcp_opts &= 2324 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE & 2325 0xFFFF); 2326 break; 2327 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2328 if (iface_param->iface_num & 0x1) 2329 break; 2330 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2331 init_fw_cb->ipv4_tcp_opts |= 2332 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE); 2333 else 2334 init_fw_cb->ipv4_tcp_opts &= 2335 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); 2336 break; 2337 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2338 if (iface_param->iface_num & 0x1) 2339 break; 2340 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2341 init_fw_cb->ipv4_tcp_opts |= 2342 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); 2343 else 2344 init_fw_cb->ipv4_tcp_opts &= 2345 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); 2346 break; 2347 case ISCSI_NET_PARAM_TCP_WSF: 2348 if (iface_param->iface_num & 0x1) 2349 break; 2350 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; 2351 break; 2352 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2353 if (iface_param->iface_num & 0x1) 2354 break; 2355 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); 2356 init_fw_cb->ipv4_tcp_opts |= 2357 cpu_to_le16((iface_param->value[0] << 1) & 2358 TCPOPT_TIMER_SCALE); 2359 break; 2360 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2361 if (iface_param->iface_num & 0x1) 2362 break; 2363 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2364 init_fw_cb->ipv4_tcp_opts |= 2365 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); 2366 else 2367 init_fw_cb->ipv4_tcp_opts &= 2368 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); 2369 break; 2370 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 2371 if (iface_param->iface_num & 0x1) 2372 break; 2373 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2374 init_fw_cb->ipv4_tcp_opts |= 2375 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); 2376 else 2377 init_fw_cb->ipv4_tcp_opts &= 2378 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); 2379 break; 2380 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 2381 if (iface_param->iface_num & 0x1) 2382 break; 2383 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2384 init_fw_cb->ipv4_tcp_opts |= 2385 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); 2386 else 2387 init_fw_cb->ipv4_tcp_opts &= 2388 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); 2389 break; 2390 case ISCSI_NET_PARAM_IPV4_TOS_EN: 2391 if (iface_param->iface_num & 0x1) 2392 break; 2393 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2394 init_fw_cb->ipv4_ip_opts |= 2395 cpu_to_le16(IPOPT_IPV4_TOS_EN); 2396 else 2397 init_fw_cb->ipv4_ip_opts &= 2398 cpu_to_le16(~IPOPT_IPV4_TOS_EN); 2399 break; 2400 case ISCSI_NET_PARAM_IPV4_TOS: 2401 if (iface_param->iface_num & 0x1) 2402 break; 2403 init_fw_cb->ipv4_tos = iface_param->value[0]; 2404 break; 2405 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 2406 if (iface_param->iface_num & 0x1) 2407 break; 2408 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2409 init_fw_cb->ipv4_ip_opts |= 2410 cpu_to_le16(IPOPT_GRAT_ARP_EN); 2411 else 2412 init_fw_cb->ipv4_ip_opts &= 2413 cpu_to_le16(~IPOPT_GRAT_ARP_EN); 2414 break; 2415 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 2416 if (iface_param->iface_num & 0x1) 2417 break; 2418 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2419 init_fw_cb->ipv4_ip_opts |= 2420 cpu_to_le16(IPOPT_ALT_CID_EN); 2421 else 2422 init_fw_cb->ipv4_ip_opts &= 2423 cpu_to_le16(~IPOPT_ALT_CID_EN); 2424 break; 2425 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 2426 if (iface_param->iface_num & 0x1) 2427 break; 2428 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, 2429 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); 2430 init_fw_cb->ipv4_dhcp_alt_cid_len = 2431 strlen(init_fw_cb->ipv4_dhcp_alt_cid); 2432 break; 2433 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 2434 if (iface_param->iface_num & 0x1) 2435 break; 2436 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2437 init_fw_cb->ipv4_ip_opts |= 2438 cpu_to_le16(IPOPT_REQ_VID_EN); 2439 else 2440 init_fw_cb->ipv4_ip_opts &= 2441 cpu_to_le16(~IPOPT_REQ_VID_EN); 2442 break; 2443 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 2444 if (iface_param->iface_num & 0x1) 2445 break; 2446 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2447 init_fw_cb->ipv4_ip_opts |= 2448 cpu_to_le16(IPOPT_USE_VID_EN); 2449 else 2450 init_fw_cb->ipv4_ip_opts &= 2451 cpu_to_le16(~IPOPT_USE_VID_EN); 2452 break; 2453 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 2454 if (iface_param->iface_num & 0x1) 2455 break; 2456 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, 2457 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); 2458 init_fw_cb->ipv4_dhcp_vid_len = 2459 strlen(init_fw_cb->ipv4_dhcp_vid); 2460 break; 2461 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 2462 if (iface_param->iface_num & 0x1) 2463 break; 2464 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2465 init_fw_cb->ipv4_ip_opts |= 2466 cpu_to_le16(IPOPT_LEARN_IQN_EN); 2467 else 2468 init_fw_cb->ipv4_ip_opts &= 2469 cpu_to_le16(~IPOPT_LEARN_IQN_EN); 2470 break; 2471 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 2472 if (iface_param->iface_num & 0x1) 2473 break; 2474 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2475 init_fw_cb->ipv4_ip_opts |= 2476 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); 2477 else 2478 init_fw_cb->ipv4_ip_opts &= 2479 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); 2480 break; 2481 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 2482 if (iface_param->iface_num & 0x1) 2483 break; 2484 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2485 init_fw_cb->ipv4_ip_opts |= 2486 cpu_to_le16(IPOPT_IN_FORWARD_EN); 2487 else 2488 init_fw_cb->ipv4_ip_opts &= 2489 cpu_to_le16(~IPOPT_IN_FORWARD_EN); 2490 break; 2491 case ISCSI_NET_PARAM_REDIRECT_EN: 2492 if (iface_param->iface_num & 0x1) 2493 break; 2494 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2495 init_fw_cb->ipv4_ip_opts |= 2496 cpu_to_le16(IPOPT_ARP_REDIRECT_EN); 2497 else 2498 init_fw_cb->ipv4_ip_opts &= 2499 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); 2500 break; 2501 case ISCSI_NET_PARAM_IPV4_TTL: 2502 if (iface_param->iface_num & 0x1) 2503 break; 2504 init_fw_cb->ipv4_ttl = iface_param->value[0]; 2505 break; 2506 default: 2507 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 2508 iface_param->param); 2509 break; 2510 } 2511 } 2512 2513 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, 2514 struct iscsi_iface_param_info *iface_param, 2515 struct addr_ctrl_blk *init_fw_cb) 2516 { 2517 switch (iface_param->param) { 2518 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 2519 if (iface_param->iface_num & 0x1) 2520 break; 2521 init_fw_cb->def_timeout = 2522 cpu_to_le16(*(uint16_t *)iface_param->value); 2523 break; 2524 case ISCSI_IFACE_PARAM_HDRDGST_EN: 2525 if (iface_param->iface_num & 0x1) 2526 break; 2527 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2528 init_fw_cb->iscsi_opts |= 2529 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); 2530 else 2531 init_fw_cb->iscsi_opts &= 2532 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); 2533 break; 2534 case ISCSI_IFACE_PARAM_DATADGST_EN: 2535 if (iface_param->iface_num & 0x1) 2536 break; 2537 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2538 init_fw_cb->iscsi_opts |= 2539 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); 2540 else 2541 init_fw_cb->iscsi_opts &= 2542 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); 2543 break; 2544 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 2545 if (iface_param->iface_num & 0x1) 2546 break; 2547 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2548 init_fw_cb->iscsi_opts |= 2549 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); 2550 else 2551 init_fw_cb->iscsi_opts &= 2552 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); 2553 break; 2554 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 2555 if (iface_param->iface_num & 0x1) 2556 break; 2557 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2558 init_fw_cb->iscsi_opts |= 2559 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); 2560 else 2561 init_fw_cb->iscsi_opts &= 2562 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); 2563 break; 2564 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 2565 if (iface_param->iface_num & 0x1) 2566 break; 2567 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2568 init_fw_cb->iscsi_opts |= 2569 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); 2570 else 2571 init_fw_cb->iscsi_opts &= 2572 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); 2573 break; 2574 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 2575 if (iface_param->iface_num & 0x1) 2576 break; 2577 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2578 init_fw_cb->iscsi_opts |= 2579 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); 2580 else 2581 init_fw_cb->iscsi_opts &= 2582 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); 2583 break; 2584 case ISCSI_IFACE_PARAM_ERL: 2585 if (iface_param->iface_num & 0x1) 2586 break; 2587 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); 2588 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & 2589 ISCSIOPTS_ERL); 2590 break; 2591 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 2592 if (iface_param->iface_num & 0x1) 2593 break; 2594 init_fw_cb->iscsi_max_pdu_size = 2595 cpu_to_le32(*(uint32_t *)iface_param->value) / 2596 BYTE_UNITS; 2597 break; 2598 case ISCSI_IFACE_PARAM_FIRST_BURST: 2599 if (iface_param->iface_num & 0x1) 2600 break; 2601 init_fw_cb->iscsi_fburst_len = 2602 cpu_to_le32(*(uint32_t *)iface_param->value) / 2603 BYTE_UNITS; 2604 break; 2605 case ISCSI_IFACE_PARAM_MAX_R2T: 2606 if (iface_param->iface_num & 0x1) 2607 break; 2608 init_fw_cb->iscsi_max_outstnd_r2t = 2609 cpu_to_le16(*(uint16_t *)iface_param->value); 2610 break; 2611 case ISCSI_IFACE_PARAM_MAX_BURST: 2612 if (iface_param->iface_num & 0x1) 2613 break; 2614 init_fw_cb->iscsi_max_burst_len = 2615 cpu_to_le32(*(uint32_t *)iface_param->value) / 2616 BYTE_UNITS; 2617 break; 2618 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 2619 if (iface_param->iface_num & 0x1) 2620 break; 2621 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2622 init_fw_cb->iscsi_opts |= 2623 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); 2624 else 2625 init_fw_cb->iscsi_opts &= 2626 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); 2627 break; 2628 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 2629 if (iface_param->iface_num & 0x1) 2630 break; 2631 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2632 init_fw_cb->iscsi_opts |= 2633 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); 2634 else 2635 init_fw_cb->iscsi_opts &= 2636 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); 2637 break; 2638 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 2639 if (iface_param->iface_num & 0x1) 2640 break; 2641 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2642 init_fw_cb->iscsi_opts |= 2643 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); 2644 else 2645 init_fw_cb->iscsi_opts &= 2646 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); 2647 break; 2648 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 2649 if (iface_param->iface_num & 0x1) 2650 break; 2651 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2652 init_fw_cb->iscsi_opts |= 2653 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2654 else 2655 init_fw_cb->iscsi_opts &= 2656 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2657 break; 2658 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 2659 if (iface_param->iface_num & 0x1) 2660 break; 2661 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2662 init_fw_cb->iscsi_opts |= 2663 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2664 else 2665 init_fw_cb->iscsi_opts &= 2666 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2667 break; 2668 default: 2669 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", 2670 iface_param->param); 2671 break; 2672 } 2673 } 2674 2675 static void 2676 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 2677 { 2678 struct addr_ctrl_blk_def *acb; 2679 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 2680 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 2681 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 2682 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 2683 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 2684 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 2685 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 2686 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 2687 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 2688 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 2689 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 2690 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 2691 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 2692 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 2693 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 2694 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 2695 } 2696 2697 static int 2698 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 2699 { 2700 struct scsi_qla_host *ha = to_qla_host(shost); 2701 int rval = 0; 2702 struct iscsi_iface_param_info *iface_param = NULL; 2703 struct addr_ctrl_blk *init_fw_cb = NULL; 2704 dma_addr_t init_fw_cb_dma; 2705 uint32_t mbox_cmd[MBOX_REG_COUNT]; 2706 uint32_t mbox_sts[MBOX_REG_COUNT]; 2707 uint32_t rem = len; 2708 struct nlattr *attr; 2709 2710 init_fw_cb = dma_zalloc_coherent(&ha->pdev->dev, 2711 sizeof(struct addr_ctrl_blk), 2712 &init_fw_cb_dma, GFP_KERNEL); 2713 if (!init_fw_cb) { 2714 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 2715 __func__); 2716 return -ENOMEM; 2717 } 2718 2719 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 2720 memset(&mbox_sts, 0, sizeof(mbox_sts)); 2721 2722 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 2723 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 2724 rval = -EIO; 2725 goto exit_init_fw_cb; 2726 } 2727 2728 nla_for_each_attr(attr, data, len, rem) { 2729 iface_param = nla_data(attr); 2730 2731 if (iface_param->param_type == ISCSI_NET_PARAM) { 2732 switch (iface_param->iface_type) { 2733 case ISCSI_IFACE_TYPE_IPV4: 2734 switch (iface_param->iface_num) { 2735 case 0: 2736 qla4xxx_set_ipv4(ha, iface_param, 2737 init_fw_cb); 2738 break; 2739 default: 2740 /* Cannot have more than one IPv4 interface */ 2741 ql4_printk(KERN_ERR, ha, 2742 "Invalid IPv4 iface number = %d\n", 2743 iface_param->iface_num); 2744 break; 2745 } 2746 break; 2747 case ISCSI_IFACE_TYPE_IPV6: 2748 switch (iface_param->iface_num) { 2749 case 0: 2750 case 1: 2751 qla4xxx_set_ipv6(ha, iface_param, 2752 init_fw_cb); 2753 break; 2754 default: 2755 /* Cannot have more than two IPv6 interface */ 2756 ql4_printk(KERN_ERR, ha, 2757 "Invalid IPv6 iface number = %d\n", 2758 iface_param->iface_num); 2759 break; 2760 } 2761 break; 2762 default: 2763 ql4_printk(KERN_ERR, ha, 2764 "Invalid iface type\n"); 2765 break; 2766 } 2767 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { 2768 qla4xxx_set_iscsi_param(ha, iface_param, 2769 init_fw_cb); 2770 } else { 2771 continue; 2772 } 2773 } 2774 2775 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 2776 2777 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 2778 sizeof(struct addr_ctrl_blk), 2779 FLASH_OPT_RMW_COMMIT); 2780 if (rval != QLA_SUCCESS) { 2781 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 2782 __func__); 2783 rval = -EIO; 2784 goto exit_init_fw_cb; 2785 } 2786 2787 rval = qla4xxx_disable_acb(ha); 2788 if (rval != QLA_SUCCESS) { 2789 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 2790 __func__); 2791 rval = -EIO; 2792 goto exit_init_fw_cb; 2793 } 2794 2795 wait_for_completion_timeout(&ha->disable_acb_comp, 2796 DISABLE_ACB_TOV * HZ); 2797 2798 qla4xxx_initcb_to_acb(init_fw_cb); 2799 2800 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 2801 if (rval != QLA_SUCCESS) { 2802 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 2803 __func__); 2804 rval = -EIO; 2805 goto exit_init_fw_cb; 2806 } 2807 2808 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2809 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 2810 init_fw_cb_dma); 2811 2812 exit_init_fw_cb: 2813 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 2814 init_fw_cb, init_fw_cb_dma); 2815 2816 return rval; 2817 } 2818 2819 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 2820 enum iscsi_param param, char *buf) 2821 { 2822 struct iscsi_session *sess = cls_sess->dd_data; 2823 struct ddb_entry *ddb_entry = sess->dd_data; 2824 struct scsi_qla_host *ha = ddb_entry->ha; 2825 struct iscsi_cls_conn *cls_conn = ddb_entry->conn; 2826 struct ql4_chap_table chap_tbl; 2827 int rval, len; 2828 uint16_t idx; 2829 2830 memset(&chap_tbl, 0, sizeof(chap_tbl)); 2831 switch (param) { 2832 case ISCSI_PARAM_CHAP_IN_IDX: 2833 rval = qla4xxx_get_chap_index(ha, sess->username_in, 2834 sess->password_in, BIDI_CHAP, 2835 &idx); 2836 if (rval) 2837 len = sprintf(buf, "\n"); 2838 else 2839 len = sprintf(buf, "%hu\n", idx); 2840 break; 2841 case ISCSI_PARAM_CHAP_OUT_IDX: 2842 if (ddb_entry->ddb_type == FLASH_DDB) { 2843 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 2844 idx = ddb_entry->chap_tbl_idx; 2845 rval = QLA_SUCCESS; 2846 } else { 2847 rval = QLA_ERROR; 2848 } 2849 } else { 2850 rval = qla4xxx_get_chap_index(ha, sess->username, 2851 sess->password, 2852 LOCAL_CHAP, &idx); 2853 } 2854 if (rval) 2855 len = sprintf(buf, "\n"); 2856 else 2857 len = sprintf(buf, "%hu\n", idx); 2858 break; 2859 case ISCSI_PARAM_USERNAME: 2860 case ISCSI_PARAM_PASSWORD: 2861 /* First, populate session username and password for FLASH DDB, 2862 * if not already done. This happens when session login fails 2863 * for a FLASH DDB. 2864 */ 2865 if (ddb_entry->ddb_type == FLASH_DDB && 2866 ddb_entry->chap_tbl_idx != INVALID_ENTRY && 2867 !sess->username && !sess->password) { 2868 idx = ddb_entry->chap_tbl_idx; 2869 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 2870 chap_tbl.secret, 2871 idx); 2872 if (!rval) { 2873 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 2874 (char *)chap_tbl.name, 2875 strlen((char *)chap_tbl.name)); 2876 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 2877 (char *)chap_tbl.secret, 2878 chap_tbl.secret_len); 2879 } 2880 } 2881 /* allow fall-through */ 2882 default: 2883 return iscsi_session_get_param(cls_sess, param, buf); 2884 } 2885 2886 return len; 2887 } 2888 2889 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 2890 enum iscsi_param param, char *buf) 2891 { 2892 struct iscsi_conn *conn; 2893 struct qla_conn *qla_conn; 2894 struct sockaddr *dst_addr; 2895 2896 conn = cls_conn->dd_data; 2897 qla_conn = conn->dd_data; 2898 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 2899 2900 switch (param) { 2901 case ISCSI_PARAM_CONN_PORT: 2902 case ISCSI_PARAM_CONN_ADDRESS: 2903 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 2904 dst_addr, param, buf); 2905 default: 2906 return iscsi_conn_get_param(cls_conn, param, buf); 2907 } 2908 } 2909 2910 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 2911 { 2912 uint32_t mbx_sts = 0; 2913 uint16_t tmp_ddb_index; 2914 int ret; 2915 2916 get_ddb_index: 2917 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 2918 2919 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 2920 DEBUG2(ql4_printk(KERN_INFO, ha, 2921 "Free DDB index not available\n")); 2922 ret = QLA_ERROR; 2923 goto exit_get_ddb_index; 2924 } 2925 2926 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 2927 goto get_ddb_index; 2928 2929 DEBUG2(ql4_printk(KERN_INFO, ha, 2930 "Found a free DDB index at %d\n", tmp_ddb_index)); 2931 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 2932 if (ret == QLA_ERROR) { 2933 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 2934 ql4_printk(KERN_INFO, ha, 2935 "DDB index = %d not available trying next\n", 2936 tmp_ddb_index); 2937 goto get_ddb_index; 2938 } 2939 DEBUG2(ql4_printk(KERN_INFO, ha, 2940 "Free FW DDB not available\n")); 2941 } 2942 2943 *ddb_index = tmp_ddb_index; 2944 2945 exit_get_ddb_index: 2946 return ret; 2947 } 2948 2949 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 2950 struct ddb_entry *ddb_entry, 2951 char *existing_ipaddr, 2952 char *user_ipaddr) 2953 { 2954 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 2955 char formatted_ipaddr[DDB_IPADDR_LEN]; 2956 int status = QLA_SUCCESS, ret = 0; 2957 2958 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 2959 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2960 '\0', NULL); 2961 if (ret == 0) { 2962 status = QLA_ERROR; 2963 goto out_match; 2964 } 2965 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 2966 } else { 2967 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2968 '\0', NULL); 2969 if (ret == 0) { 2970 status = QLA_ERROR; 2971 goto out_match; 2972 } 2973 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 2974 } 2975 2976 if (strcmp(existing_ipaddr, formatted_ipaddr)) 2977 status = QLA_ERROR; 2978 2979 out_match: 2980 return status; 2981 } 2982 2983 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 2984 struct iscsi_cls_conn *cls_conn) 2985 { 2986 int idx = 0, max_ddbs, rval; 2987 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 2988 struct iscsi_session *sess, *existing_sess; 2989 struct iscsi_conn *conn, *existing_conn; 2990 struct ddb_entry *ddb_entry; 2991 2992 sess = cls_sess->dd_data; 2993 conn = cls_conn->dd_data; 2994 2995 if (sess->targetname == NULL || 2996 conn->persistent_address == NULL || 2997 conn->persistent_port == 0) 2998 return QLA_ERROR; 2999 3000 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 3001 MAX_DEV_DB_ENTRIES; 3002 3003 for (idx = 0; idx < max_ddbs; idx++) { 3004 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 3005 if (ddb_entry == NULL) 3006 continue; 3007 3008 if (ddb_entry->ddb_type != FLASH_DDB) 3009 continue; 3010 3011 existing_sess = ddb_entry->sess->dd_data; 3012 existing_conn = ddb_entry->conn->dd_data; 3013 3014 if (existing_sess->targetname == NULL || 3015 existing_conn->persistent_address == NULL || 3016 existing_conn->persistent_port == 0) 3017 continue; 3018 3019 DEBUG2(ql4_printk(KERN_INFO, ha, 3020 "IQN = %s User IQN = %s\n", 3021 existing_sess->targetname, 3022 sess->targetname)); 3023 3024 DEBUG2(ql4_printk(KERN_INFO, ha, 3025 "IP = %s User IP = %s\n", 3026 existing_conn->persistent_address, 3027 conn->persistent_address)); 3028 3029 DEBUG2(ql4_printk(KERN_INFO, ha, 3030 "Port = %d User Port = %d\n", 3031 existing_conn->persistent_port, 3032 conn->persistent_port)); 3033 3034 if (strcmp(existing_sess->targetname, sess->targetname)) 3035 continue; 3036 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 3037 existing_conn->persistent_address, 3038 conn->persistent_address); 3039 if (rval == QLA_ERROR) 3040 continue; 3041 if (existing_conn->persistent_port != conn->persistent_port) 3042 continue; 3043 break; 3044 } 3045 3046 if (idx == max_ddbs) 3047 return QLA_ERROR; 3048 3049 DEBUG2(ql4_printk(KERN_INFO, ha, 3050 "Match found in fwdb sessions\n")); 3051 return QLA_SUCCESS; 3052 } 3053 3054 static struct iscsi_cls_session * 3055 qla4xxx_session_create(struct iscsi_endpoint *ep, 3056 uint16_t cmds_max, uint16_t qdepth, 3057 uint32_t initial_cmdsn) 3058 { 3059 struct iscsi_cls_session *cls_sess; 3060 struct scsi_qla_host *ha; 3061 struct qla_endpoint *qla_ep; 3062 struct ddb_entry *ddb_entry; 3063 uint16_t ddb_index; 3064 struct iscsi_session *sess; 3065 struct sockaddr *dst_addr; 3066 int ret; 3067 3068 if (!ep) { 3069 printk(KERN_ERR "qla4xxx: missing ep.\n"); 3070 return NULL; 3071 } 3072 3073 qla_ep = ep->dd_data; 3074 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 3075 ha = to_qla_host(qla_ep->host); 3076 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3077 ha->host_no)); 3078 3079 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 3080 if (ret == QLA_ERROR) 3081 return NULL; 3082 3083 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 3084 cmds_max, sizeof(struct ddb_entry), 3085 sizeof(struct ql4_task_data), 3086 initial_cmdsn, ddb_index); 3087 if (!cls_sess) 3088 return NULL; 3089 3090 sess = cls_sess->dd_data; 3091 ddb_entry = sess->dd_data; 3092 ddb_entry->fw_ddb_index = ddb_index; 3093 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 3094 ddb_entry->ha = ha; 3095 ddb_entry->sess = cls_sess; 3096 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 3097 ddb_entry->ddb_change = qla4xxx_ddb_change; 3098 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); 3099 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 3100 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 3101 ha->tot_ddbs++; 3102 3103 return cls_sess; 3104 } 3105 3106 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 3107 { 3108 struct iscsi_session *sess; 3109 struct ddb_entry *ddb_entry; 3110 struct scsi_qla_host *ha; 3111 unsigned long flags, wtime; 3112 struct dev_db_entry *fw_ddb_entry = NULL; 3113 dma_addr_t fw_ddb_entry_dma; 3114 uint32_t ddb_state; 3115 int ret; 3116 3117 sess = cls_sess->dd_data; 3118 ddb_entry = sess->dd_data; 3119 ha = ddb_entry->ha; 3120 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3121 ha->host_no)); 3122 3123 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3124 &fw_ddb_entry_dma, GFP_KERNEL); 3125 if (!fw_ddb_entry) { 3126 ql4_printk(KERN_ERR, ha, 3127 "%s: Unable to allocate dma buffer\n", __func__); 3128 goto destroy_session; 3129 } 3130 3131 wtime = jiffies + (HZ * LOGOUT_TOV); 3132 do { 3133 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 3134 fw_ddb_entry, fw_ddb_entry_dma, 3135 NULL, NULL, &ddb_state, NULL, 3136 NULL, NULL); 3137 if (ret == QLA_ERROR) 3138 goto destroy_session; 3139 3140 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 3141 (ddb_state == DDB_DS_SESSION_FAILED)) 3142 goto destroy_session; 3143 3144 schedule_timeout_uninterruptible(HZ); 3145 } while ((time_after(wtime, jiffies))); 3146 3147 destroy_session: 3148 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 3149 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) 3150 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 3151 spin_lock_irqsave(&ha->hardware_lock, flags); 3152 qla4xxx_free_ddb(ha, ddb_entry); 3153 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3154 3155 iscsi_session_teardown(cls_sess); 3156 3157 if (fw_ddb_entry) 3158 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3159 fw_ddb_entry, fw_ddb_entry_dma); 3160 } 3161 3162 static struct iscsi_cls_conn * 3163 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 3164 { 3165 struct iscsi_cls_conn *cls_conn; 3166 struct iscsi_session *sess; 3167 struct ddb_entry *ddb_entry; 3168 struct scsi_qla_host *ha; 3169 3170 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 3171 conn_idx); 3172 if (!cls_conn) { 3173 pr_info("%s: Can not create connection for conn_idx = %u\n", 3174 __func__, conn_idx); 3175 return NULL; 3176 } 3177 3178 sess = cls_sess->dd_data; 3179 ddb_entry = sess->dd_data; 3180 ddb_entry->conn = cls_conn; 3181 3182 ha = ddb_entry->ha; 3183 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__, 3184 conn_idx)); 3185 return cls_conn; 3186 } 3187 3188 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 3189 struct iscsi_cls_conn *cls_conn, 3190 uint64_t transport_fd, int is_leading) 3191 { 3192 struct iscsi_conn *conn; 3193 struct qla_conn *qla_conn; 3194 struct iscsi_endpoint *ep; 3195 struct ddb_entry *ddb_entry; 3196 struct scsi_qla_host *ha; 3197 struct iscsi_session *sess; 3198 3199 sess = cls_session->dd_data; 3200 ddb_entry = sess->dd_data; 3201 ha = ddb_entry->ha; 3202 3203 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3204 cls_session->sid, cls_conn->cid)); 3205 3206 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 3207 return -EINVAL; 3208 ep = iscsi_lookup_endpoint(transport_fd); 3209 conn = cls_conn->dd_data; 3210 qla_conn = conn->dd_data; 3211 qla_conn->qla_ep = ep->dd_data; 3212 return 0; 3213 } 3214 3215 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3216 { 3217 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3218 struct iscsi_session *sess; 3219 struct ddb_entry *ddb_entry; 3220 struct scsi_qla_host *ha; 3221 struct dev_db_entry *fw_ddb_entry = NULL; 3222 dma_addr_t fw_ddb_entry_dma; 3223 uint32_t mbx_sts = 0; 3224 int ret = 0; 3225 int status = QLA_SUCCESS; 3226 3227 sess = cls_sess->dd_data; 3228 ddb_entry = sess->dd_data; 3229 ha = ddb_entry->ha; 3230 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3231 cls_sess->sid, cls_conn->cid)); 3232 3233 /* Check if we have matching FW DDB, if yes then do not 3234 * login to this target. This could cause target to logout previous 3235 * connection 3236 */ 3237 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3238 if (ret == QLA_SUCCESS) { 3239 ql4_printk(KERN_INFO, ha, 3240 "Session already exist in FW.\n"); 3241 ret = -EEXIST; 3242 goto exit_conn_start; 3243 } 3244 3245 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3246 &fw_ddb_entry_dma, GFP_KERNEL); 3247 if (!fw_ddb_entry) { 3248 ql4_printk(KERN_ERR, ha, 3249 "%s: Unable to allocate dma buffer\n", __func__); 3250 ret = -ENOMEM; 3251 goto exit_conn_start; 3252 } 3253 3254 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3255 if (ret) { 3256 /* If iscsid is stopped and started then no need to do 3257 * set param again since ddb state will be already 3258 * active and FW does not allow set ddb to an 3259 * active session. 3260 */ 3261 if (mbx_sts) 3262 if (ddb_entry->fw_ddb_device_state == 3263 DDB_DS_SESSION_ACTIVE) { 3264 ddb_entry->unblock_sess(ddb_entry->sess); 3265 goto exit_set_param; 3266 } 3267 3268 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3269 __func__, ddb_entry->fw_ddb_index); 3270 goto exit_conn_start; 3271 } 3272 3273 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3274 if (status == QLA_ERROR) { 3275 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3276 sess->targetname); 3277 ret = -EINVAL; 3278 goto exit_conn_start; 3279 } 3280 3281 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3282 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3283 3284 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3285 ddb_entry->fw_ddb_device_state)); 3286 3287 exit_set_param: 3288 ret = 0; 3289 3290 exit_conn_start: 3291 if (fw_ddb_entry) 3292 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3293 fw_ddb_entry, fw_ddb_entry_dma); 3294 return ret; 3295 } 3296 3297 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3298 { 3299 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3300 struct iscsi_session *sess; 3301 struct scsi_qla_host *ha; 3302 struct ddb_entry *ddb_entry; 3303 int options; 3304 3305 sess = cls_sess->dd_data; 3306 ddb_entry = sess->dd_data; 3307 ha = ddb_entry->ha; 3308 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, 3309 cls_conn->cid)); 3310 3311 options = LOGOUT_OPTION_CLOSE_SESSION; 3312 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3313 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3314 } 3315 3316 static void qla4xxx_task_work(struct work_struct *wdata) 3317 { 3318 struct ql4_task_data *task_data; 3319 struct scsi_qla_host *ha; 3320 struct passthru_status *sts; 3321 struct iscsi_task *task; 3322 struct iscsi_hdr *hdr; 3323 uint8_t *data; 3324 uint32_t data_len; 3325 struct iscsi_conn *conn; 3326 int hdr_len; 3327 itt_t itt; 3328 3329 task_data = container_of(wdata, struct ql4_task_data, task_work); 3330 ha = task_data->ha; 3331 task = task_data->task; 3332 sts = &task_data->sts; 3333 hdr_len = sizeof(struct iscsi_hdr); 3334 3335 DEBUG3(printk(KERN_INFO "Status returned\n")); 3336 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3337 DEBUG3(printk(KERN_INFO "Response buffer")); 3338 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3339 3340 conn = task->conn; 3341 3342 switch (sts->completionStatus) { 3343 case PASSTHRU_STATUS_COMPLETE: 3344 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3345 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3346 itt = sts->handle; 3347 hdr->itt = itt; 3348 data = task_data->resp_buffer + hdr_len; 3349 data_len = task_data->resp_len - hdr_len; 3350 iscsi_complete_pdu(conn, hdr, data, data_len); 3351 break; 3352 default: 3353 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3354 sts->completionStatus); 3355 break; 3356 } 3357 return; 3358 } 3359 3360 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3361 { 3362 struct ql4_task_data *task_data; 3363 struct iscsi_session *sess; 3364 struct ddb_entry *ddb_entry; 3365 struct scsi_qla_host *ha; 3366 int hdr_len; 3367 3368 sess = task->conn->session; 3369 ddb_entry = sess->dd_data; 3370 ha = ddb_entry->ha; 3371 task_data = task->dd_data; 3372 memset(task_data, 0, sizeof(struct ql4_task_data)); 3373 3374 if (task->sc) { 3375 ql4_printk(KERN_INFO, ha, 3376 "%s: SCSI Commands not implemented\n", __func__); 3377 return -EINVAL; 3378 } 3379 3380 hdr_len = sizeof(struct iscsi_hdr); 3381 task_data->ha = ha; 3382 task_data->task = task; 3383 3384 if (task->data_count) { 3385 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3386 task->data_count, 3387 PCI_DMA_TODEVICE); 3388 } 3389 3390 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3391 __func__, task->conn->max_recv_dlength, hdr_len)); 3392 3393 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3394 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3395 task_data->resp_len, 3396 &task_data->resp_dma, 3397 GFP_ATOMIC); 3398 if (!task_data->resp_buffer) 3399 goto exit_alloc_pdu; 3400 3401 task_data->req_len = task->data_count + hdr_len; 3402 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3403 task_data->req_len, 3404 &task_data->req_dma, 3405 GFP_ATOMIC); 3406 if (!task_data->req_buffer) 3407 goto exit_alloc_pdu; 3408 3409 task->hdr = task_data->req_buffer; 3410 3411 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3412 3413 return 0; 3414 3415 exit_alloc_pdu: 3416 if (task_data->resp_buffer) 3417 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3418 task_data->resp_buffer, task_data->resp_dma); 3419 3420 if (task_data->req_buffer) 3421 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3422 task_data->req_buffer, task_data->req_dma); 3423 return -ENOMEM; 3424 } 3425 3426 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3427 { 3428 struct ql4_task_data *task_data; 3429 struct iscsi_session *sess; 3430 struct ddb_entry *ddb_entry; 3431 struct scsi_qla_host *ha; 3432 int hdr_len; 3433 3434 hdr_len = sizeof(struct iscsi_hdr); 3435 sess = task->conn->session; 3436 ddb_entry = sess->dd_data; 3437 ha = ddb_entry->ha; 3438 task_data = task->dd_data; 3439 3440 if (task->data_count) { 3441 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3442 task->data_count, PCI_DMA_TODEVICE); 3443 } 3444 3445 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3446 __func__, task->conn->max_recv_dlength, hdr_len)); 3447 3448 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3449 task_data->resp_buffer, task_data->resp_dma); 3450 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3451 task_data->req_buffer, task_data->req_dma); 3452 return; 3453 } 3454 3455 static int qla4xxx_task_xmit(struct iscsi_task *task) 3456 { 3457 struct scsi_cmnd *sc = task->sc; 3458 struct iscsi_session *sess = task->conn->session; 3459 struct ddb_entry *ddb_entry = sess->dd_data; 3460 struct scsi_qla_host *ha = ddb_entry->ha; 3461 3462 if (!sc) 3463 return qla4xxx_send_passthru0(task); 3464 3465 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3466 __func__); 3467 return -ENOSYS; 3468 } 3469 3470 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3471 struct iscsi_bus_flash_conn *conn, 3472 struct dev_db_entry *fw_ddb_entry) 3473 { 3474 unsigned long options = 0; 3475 int rc = 0; 3476 3477 options = le16_to_cpu(fw_ddb_entry->options); 3478 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3479 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3480 rc = iscsi_switch_str_param(&sess->portal_type, 3481 PORTAL_TYPE_IPV6); 3482 if (rc) 3483 goto exit_copy; 3484 } else { 3485 rc = iscsi_switch_str_param(&sess->portal_type, 3486 PORTAL_TYPE_IPV4); 3487 if (rc) 3488 goto exit_copy; 3489 } 3490 3491 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3492 &options); 3493 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3494 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3495 3496 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3497 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3498 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3499 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3500 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3501 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3502 &options); 3503 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3504 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3505 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3506 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3507 &options); 3508 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3509 sess->discovery_auth_optional = 3510 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3511 if (test_bit(ISCSIOPT_ERL1, &options)) 3512 sess->erl |= BIT_1; 3513 if (test_bit(ISCSIOPT_ERL0, &options)) 3514 sess->erl |= BIT_0; 3515 3516 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3517 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3518 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3519 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3520 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3521 conn->tcp_timer_scale |= BIT_3; 3522 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3523 conn->tcp_timer_scale |= BIT_2; 3524 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3525 conn->tcp_timer_scale |= BIT_1; 3526 3527 conn->tcp_timer_scale >>= 1; 3528 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3529 3530 options = le16_to_cpu(fw_ddb_entry->ip_options); 3531 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3532 3533 conn->max_recv_dlength = BYTE_UNITS * 3534 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3535 conn->max_xmit_dlength = BYTE_UNITS * 3536 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3537 sess->first_burst = BYTE_UNITS * 3538 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3539 sess->max_burst = BYTE_UNITS * 3540 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3541 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3542 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3543 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3544 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3545 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3546 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3547 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3548 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3549 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3550 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3551 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3552 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3553 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3554 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3555 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3556 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3557 3558 sess->default_taskmgmt_timeout = 3559 le16_to_cpu(fw_ddb_entry->def_timeout); 3560 conn->port = le16_to_cpu(fw_ddb_entry->port); 3561 3562 options = le16_to_cpu(fw_ddb_entry->options); 3563 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3564 if (!conn->ipaddress) { 3565 rc = -ENOMEM; 3566 goto exit_copy; 3567 } 3568 3569 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3570 if (!conn->redirect_ipaddr) { 3571 rc = -ENOMEM; 3572 goto exit_copy; 3573 } 3574 3575 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3576 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3577 3578 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3579 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3580 3581 conn->link_local_ipv6_addr = kmemdup( 3582 fw_ddb_entry->link_local_ipv6_addr, 3583 IPv6_ADDR_LEN, GFP_KERNEL); 3584 if (!conn->link_local_ipv6_addr) { 3585 rc = -ENOMEM; 3586 goto exit_copy; 3587 } 3588 } else { 3589 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3590 } 3591 3592 if (fw_ddb_entry->iscsi_name[0]) { 3593 rc = iscsi_switch_str_param(&sess->targetname, 3594 (char *)fw_ddb_entry->iscsi_name); 3595 if (rc) 3596 goto exit_copy; 3597 } 3598 3599 if (fw_ddb_entry->iscsi_alias[0]) { 3600 rc = iscsi_switch_str_param(&sess->targetalias, 3601 (char *)fw_ddb_entry->iscsi_alias); 3602 if (rc) 3603 goto exit_copy; 3604 } 3605 3606 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3607 3608 exit_copy: 3609 return rc; 3610 } 3611 3612 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3613 struct iscsi_bus_flash_conn *conn, 3614 struct dev_db_entry *fw_ddb_entry) 3615 { 3616 uint16_t options; 3617 int rc = 0; 3618 3619 options = le16_to_cpu(fw_ddb_entry->options); 3620 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3621 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3622 options |= BIT_8; 3623 else 3624 options &= ~BIT_8; 3625 3626 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3627 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3628 SET_BITVAL(sess->entry_state, options, BIT_3); 3629 fw_ddb_entry->options = cpu_to_le16(options); 3630 3631 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3632 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3633 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3634 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3635 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3636 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3637 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3638 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3639 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3640 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3641 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3642 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3643 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3644 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3645 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3646 3647 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3648 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3649 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3650 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3651 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3652 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3653 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3654 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3655 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3656 3657 options = le16_to_cpu(fw_ddb_entry->ip_options); 3658 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3659 fw_ddb_entry->ip_options = cpu_to_le16(options); 3660 3661 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3662 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3663 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3664 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3665 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3666 fw_ddb_entry->iscsi_first_burst_len = 3667 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3668 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3669 BYTE_UNITS); 3670 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3671 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3672 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3673 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3674 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3675 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3676 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3677 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3678 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3679 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3680 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3681 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3682 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3683 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3684 fw_ddb_entry->port = cpu_to_le16(conn->port); 3685 fw_ddb_entry->def_timeout = 3686 cpu_to_le16(sess->default_taskmgmt_timeout); 3687 3688 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3689 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3690 else 3691 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3692 3693 if (conn->ipaddress) 3694 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3695 sizeof(fw_ddb_entry->ip_addr)); 3696 3697 if (conn->redirect_ipaddr) 3698 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3699 sizeof(fw_ddb_entry->tgt_addr)); 3700 3701 if (conn->link_local_ipv6_addr) 3702 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3703 conn->link_local_ipv6_addr, 3704 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3705 3706 if (sess->targetname) 3707 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3708 sizeof(fw_ddb_entry->iscsi_name)); 3709 3710 if (sess->targetalias) 3711 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3712 sizeof(fw_ddb_entry->iscsi_alias)); 3713 3714 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3715 3716 return rc; 3717 } 3718 3719 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3720 struct iscsi_session *sess, 3721 struct dev_db_entry *fw_ddb_entry) 3722 { 3723 unsigned long options = 0; 3724 uint16_t ddb_link; 3725 uint16_t disc_parent; 3726 char ip_addr[DDB_IPADDR_LEN]; 3727 3728 options = le16_to_cpu(fw_ddb_entry->options); 3729 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3730 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3731 &options); 3732 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3733 3734 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3735 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3736 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3737 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3738 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3739 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3740 &options); 3741 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3742 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3743 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3744 &options); 3745 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3746 sess->discovery_auth_optional = 3747 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3748 if (test_bit(ISCSIOPT_ERL1, &options)) 3749 sess->erl |= BIT_1; 3750 if (test_bit(ISCSIOPT_ERL0, &options)) 3751 sess->erl |= BIT_0; 3752 3753 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3754 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3755 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3756 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3757 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3758 conn->tcp_timer_scale |= BIT_3; 3759 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3760 conn->tcp_timer_scale |= BIT_2; 3761 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3762 conn->tcp_timer_scale |= BIT_1; 3763 3764 conn->tcp_timer_scale >>= 1; 3765 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3766 3767 options = le16_to_cpu(fw_ddb_entry->ip_options); 3768 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3769 3770 conn->max_recv_dlength = BYTE_UNITS * 3771 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3772 conn->max_xmit_dlength = BYTE_UNITS * 3773 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3774 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3775 sess->first_burst = BYTE_UNITS * 3776 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3777 sess->max_burst = BYTE_UNITS * 3778 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3779 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3780 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3781 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3782 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3783 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3784 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3785 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3786 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3787 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3788 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3789 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3790 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3791 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3792 3793 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3794 if (ddb_link == DDB_ISNS) 3795 disc_parent = ISCSI_DISC_PARENT_ISNS; 3796 else if (ddb_link == DDB_NO_LINK) 3797 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3798 else if (ddb_link < MAX_DDB_ENTRIES) 3799 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3800 else 3801 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3802 3803 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3804 iscsi_get_discovery_parent_name(disc_parent), 0); 3805 3806 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3807 (char *)fw_ddb_entry->iscsi_alias, 0); 3808 3809 options = le16_to_cpu(fw_ddb_entry->options); 3810 if (options & DDB_OPT_IPV6_DEVICE) { 3811 memset(ip_addr, 0, sizeof(ip_addr)); 3812 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3813 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3814 (char *)ip_addr, 0); 3815 } 3816 } 3817 3818 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3819 struct dev_db_entry *fw_ddb_entry, 3820 struct iscsi_cls_session *cls_sess, 3821 struct iscsi_cls_conn *cls_conn) 3822 { 3823 int buflen = 0; 3824 struct iscsi_session *sess; 3825 struct ddb_entry *ddb_entry; 3826 struct ql4_chap_table chap_tbl; 3827 struct iscsi_conn *conn; 3828 char ip_addr[DDB_IPADDR_LEN]; 3829 uint16_t options = 0; 3830 3831 sess = cls_sess->dd_data; 3832 ddb_entry = sess->dd_data; 3833 conn = cls_conn->dd_data; 3834 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3835 3836 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3837 3838 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3839 3840 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3841 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3842 3843 memset(ip_addr, 0, sizeof(ip_addr)); 3844 options = le16_to_cpu(fw_ddb_entry->options); 3845 if (options & DDB_OPT_IPV6_DEVICE) { 3846 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3847 3848 memset(ip_addr, 0, sizeof(ip_addr)); 3849 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3850 } else { 3851 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3852 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3853 } 3854 3855 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3856 (char *)ip_addr, buflen); 3857 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3858 (char *)fw_ddb_entry->iscsi_name, buflen); 3859 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3860 (char *)ha->name_string, buflen); 3861 3862 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3863 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3864 chap_tbl.secret, 3865 ddb_entry->chap_tbl_idx)) { 3866 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3867 (char *)chap_tbl.name, 3868 strlen((char *)chap_tbl.name)); 3869 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3870 (char *)chap_tbl.secret, 3871 chap_tbl.secret_len); 3872 } 3873 } 3874 } 3875 3876 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3877 struct ddb_entry *ddb_entry) 3878 { 3879 struct iscsi_cls_session *cls_sess; 3880 struct iscsi_cls_conn *cls_conn; 3881 uint32_t ddb_state; 3882 dma_addr_t fw_ddb_entry_dma; 3883 struct dev_db_entry *fw_ddb_entry; 3884 3885 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3886 &fw_ddb_entry_dma, GFP_KERNEL); 3887 if (!fw_ddb_entry) { 3888 ql4_printk(KERN_ERR, ha, 3889 "%s: Unable to allocate dma buffer\n", __func__); 3890 goto exit_session_conn_fwddb_param; 3891 } 3892 3893 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3894 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3895 NULL, NULL, NULL) == QLA_ERROR) { 3896 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3897 "get_ddb_entry for fw_ddb_index %d\n", 3898 ha->host_no, __func__, 3899 ddb_entry->fw_ddb_index)); 3900 goto exit_session_conn_fwddb_param; 3901 } 3902 3903 cls_sess = ddb_entry->sess; 3904 3905 cls_conn = ddb_entry->conn; 3906 3907 /* Update params */ 3908 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3909 3910 exit_session_conn_fwddb_param: 3911 if (fw_ddb_entry) 3912 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3913 fw_ddb_entry, fw_ddb_entry_dma); 3914 } 3915 3916 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3917 struct ddb_entry *ddb_entry) 3918 { 3919 struct iscsi_cls_session *cls_sess; 3920 struct iscsi_cls_conn *cls_conn; 3921 struct iscsi_session *sess; 3922 struct iscsi_conn *conn; 3923 uint32_t ddb_state; 3924 dma_addr_t fw_ddb_entry_dma; 3925 struct dev_db_entry *fw_ddb_entry; 3926 3927 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3928 &fw_ddb_entry_dma, GFP_KERNEL); 3929 if (!fw_ddb_entry) { 3930 ql4_printk(KERN_ERR, ha, 3931 "%s: Unable to allocate dma buffer\n", __func__); 3932 goto exit_session_conn_param; 3933 } 3934 3935 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3936 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3937 NULL, NULL, NULL) == QLA_ERROR) { 3938 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3939 "get_ddb_entry for fw_ddb_index %d\n", 3940 ha->host_no, __func__, 3941 ddb_entry->fw_ddb_index)); 3942 goto exit_session_conn_param; 3943 } 3944 3945 cls_sess = ddb_entry->sess; 3946 sess = cls_sess->dd_data; 3947 3948 cls_conn = ddb_entry->conn; 3949 conn = cls_conn->dd_data; 3950 3951 /* Update timers after login */ 3952 ddb_entry->default_relogin_timeout = 3953 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3954 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3955 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3956 ddb_entry->default_time2wait = 3957 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3958 3959 /* Update params */ 3960 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3961 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3962 3963 memcpy(sess->initiatorname, ha->name_string, 3964 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 3965 3966 exit_session_conn_param: 3967 if (fw_ddb_entry) 3968 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3969 fw_ddb_entry, fw_ddb_entry_dma); 3970 } 3971 3972 /* 3973 * Timer routines 3974 */ 3975 static void qla4xxx_timer(struct timer_list *t); 3976 3977 static void qla4xxx_start_timer(struct scsi_qla_host *ha, 3978 unsigned long interval) 3979 { 3980 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 3981 __func__, ha->host->host_no)); 3982 timer_setup(&ha->timer, qla4xxx_timer, 0); 3983 ha->timer.expires = jiffies + interval * HZ; 3984 add_timer(&ha->timer); 3985 ha->timer_active = 1; 3986 } 3987 3988 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 3989 { 3990 del_timer_sync(&ha->timer); 3991 ha->timer_active = 0; 3992 } 3993 3994 /*** 3995 * qla4xxx_mark_device_missing - blocks the session 3996 * @cls_session: Pointer to the session to be blocked 3997 * @ddb_entry: Pointer to device database entry 3998 * 3999 * This routine marks a device missing and close connection. 4000 **/ 4001 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 4002 { 4003 iscsi_block_session(cls_session); 4004 } 4005 4006 /** 4007 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 4008 * @ha: Pointer to host adapter structure. 4009 * 4010 * This routine marks a device missing and resets the relogin retry count. 4011 **/ 4012 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 4013 { 4014 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 4015 } 4016 4017 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 4018 struct ddb_entry *ddb_entry, 4019 struct scsi_cmnd *cmd) 4020 { 4021 struct srb *srb; 4022 4023 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 4024 if (!srb) 4025 return srb; 4026 4027 kref_init(&srb->srb_ref); 4028 srb->ha = ha; 4029 srb->ddb = ddb_entry; 4030 srb->cmd = cmd; 4031 srb->flags = 0; 4032 CMD_SP(cmd) = (void *)srb; 4033 4034 return srb; 4035 } 4036 4037 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4038 { 4039 struct scsi_cmnd *cmd = srb->cmd; 4040 4041 if (srb->flags & SRB_DMA_VALID) { 4042 scsi_dma_unmap(cmd); 4043 srb->flags &= ~SRB_DMA_VALID; 4044 } 4045 CMD_SP(cmd) = NULL; 4046 } 4047 4048 void qla4xxx_srb_compl(struct kref *ref) 4049 { 4050 struct srb *srb = container_of(ref, struct srb, srb_ref); 4051 struct scsi_cmnd *cmd = srb->cmd; 4052 struct scsi_qla_host *ha = srb->ha; 4053 4054 qla4xxx_srb_free_dma(ha, srb); 4055 4056 mempool_free(srb, ha->srb_mempool); 4057 4058 cmd->scsi_done(cmd); 4059 } 4060 4061 /** 4062 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4063 * @host: scsi host 4064 * @cmd: Pointer to Linux's SCSI command structure 4065 * 4066 * Remarks: 4067 * This routine is invoked by Linux to send a SCSI command to the driver. 4068 * The mid-level driver tries to ensure that queuecommand never gets 4069 * invoked concurrently with itself or the interrupt handler (although 4070 * the interrupt handler may call this routine as part of request- 4071 * completion handling). Unfortunely, it sometimes calls the scheduler 4072 * in interrupt context which is a big NO! NO!. 4073 **/ 4074 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4075 { 4076 struct scsi_qla_host *ha = to_qla_host(host); 4077 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4078 struct iscsi_cls_session *sess = ddb_entry->sess; 4079 struct srb *srb; 4080 int rval; 4081 4082 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4083 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4084 cmd->result = DID_NO_CONNECT << 16; 4085 else 4086 cmd->result = DID_REQUEUE << 16; 4087 goto qc_fail_command; 4088 } 4089 4090 if (!sess) { 4091 cmd->result = DID_IMM_RETRY << 16; 4092 goto qc_fail_command; 4093 } 4094 4095 rval = iscsi_session_chkready(sess); 4096 if (rval) { 4097 cmd->result = rval; 4098 goto qc_fail_command; 4099 } 4100 4101 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4102 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4103 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4104 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4105 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4106 !test_bit(AF_ONLINE, &ha->flags) || 4107 !test_bit(AF_LINK_UP, &ha->flags) || 4108 test_bit(AF_LOOPBACK, &ha->flags) || 4109 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4110 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4111 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4112 goto qc_host_busy; 4113 4114 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4115 if (!srb) 4116 goto qc_host_busy; 4117 4118 rval = qla4xxx_send_command_to_isp(ha, srb); 4119 if (rval != QLA_SUCCESS) 4120 goto qc_host_busy_free_sp; 4121 4122 return 0; 4123 4124 qc_host_busy_free_sp: 4125 qla4xxx_srb_free_dma(ha, srb); 4126 mempool_free(srb, ha->srb_mempool); 4127 4128 qc_host_busy: 4129 return SCSI_MLQUEUE_HOST_BUSY; 4130 4131 qc_fail_command: 4132 cmd->scsi_done(cmd); 4133 4134 return 0; 4135 } 4136 4137 /** 4138 * qla4xxx_mem_free - frees memory allocated to adapter 4139 * @ha: Pointer to host adapter structure. 4140 * 4141 * Frees memory previously allocated by qla4xxx_mem_alloc 4142 **/ 4143 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4144 { 4145 if (ha->queues) 4146 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4147 ha->queues_dma); 4148 4149 if (ha->fw_dump) 4150 vfree(ha->fw_dump); 4151 4152 ha->queues_len = 0; 4153 ha->queues = NULL; 4154 ha->queues_dma = 0; 4155 ha->request_ring = NULL; 4156 ha->request_dma = 0; 4157 ha->response_ring = NULL; 4158 ha->response_dma = 0; 4159 ha->shadow_regs = NULL; 4160 ha->shadow_regs_dma = 0; 4161 ha->fw_dump = NULL; 4162 ha->fw_dump_size = 0; 4163 4164 /* Free srb pool. */ 4165 if (ha->srb_mempool) 4166 mempool_destroy(ha->srb_mempool); 4167 4168 ha->srb_mempool = NULL; 4169 4170 if (ha->chap_dma_pool) 4171 dma_pool_destroy(ha->chap_dma_pool); 4172 4173 if (ha->chap_list) 4174 vfree(ha->chap_list); 4175 ha->chap_list = NULL; 4176 4177 if (ha->fw_ddb_dma_pool) 4178 dma_pool_destroy(ha->fw_ddb_dma_pool); 4179 4180 /* release io space registers */ 4181 if (is_qla8022(ha)) { 4182 if (ha->nx_pcibase) 4183 iounmap( 4184 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4185 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4186 if (ha->nx_pcibase) 4187 iounmap( 4188 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4189 } else if (ha->reg) { 4190 iounmap(ha->reg); 4191 } 4192 4193 if (ha->reset_tmplt.buff) 4194 vfree(ha->reset_tmplt.buff); 4195 4196 pci_release_regions(ha->pdev); 4197 } 4198 4199 /** 4200 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4201 * @ha: Pointer to host adapter structure 4202 * 4203 * Allocates DMA memory for request and response queues. Also allocates memory 4204 * for srbs. 4205 **/ 4206 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4207 { 4208 unsigned long align; 4209 4210 /* Allocate contiguous block of DMA memory for queues. */ 4211 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4212 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4213 sizeof(struct shadow_regs) + 4214 MEM_ALIGN_VALUE + 4215 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4216 ha->queues = dma_zalloc_coherent(&ha->pdev->dev, ha->queues_len, 4217 &ha->queues_dma, GFP_KERNEL); 4218 if (ha->queues == NULL) { 4219 ql4_printk(KERN_WARNING, ha, 4220 "Memory Allocation failed - queues.\n"); 4221 4222 goto mem_alloc_error_exit; 4223 } 4224 4225 /* 4226 * As per RISC alignment requirements -- the bus-address must be a 4227 * multiple of the request-ring size (in bytes). 4228 */ 4229 align = 0; 4230 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4231 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4232 (MEM_ALIGN_VALUE - 1)); 4233 4234 /* Update request and response queue pointers. */ 4235 ha->request_dma = ha->queues_dma + align; 4236 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4237 ha->response_dma = ha->queues_dma + align + 4238 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4239 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4240 (REQUEST_QUEUE_DEPTH * 4241 QUEUE_SIZE)); 4242 ha->shadow_regs_dma = ha->queues_dma + align + 4243 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4244 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4245 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4246 (REQUEST_QUEUE_DEPTH * 4247 QUEUE_SIZE) + 4248 (RESPONSE_QUEUE_DEPTH * 4249 QUEUE_SIZE)); 4250 4251 /* Allocate memory for srb pool. */ 4252 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4253 mempool_free_slab, srb_cachep); 4254 if (ha->srb_mempool == NULL) { 4255 ql4_printk(KERN_WARNING, ha, 4256 "Memory Allocation failed - SRB Pool.\n"); 4257 4258 goto mem_alloc_error_exit; 4259 } 4260 4261 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4262 CHAP_DMA_BLOCK_SIZE, 8, 0); 4263 4264 if (ha->chap_dma_pool == NULL) { 4265 ql4_printk(KERN_WARNING, ha, 4266 "%s: chap_dma_pool allocation failed..\n", __func__); 4267 goto mem_alloc_error_exit; 4268 } 4269 4270 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4271 DDB_DMA_BLOCK_SIZE, 8, 0); 4272 4273 if (ha->fw_ddb_dma_pool == NULL) { 4274 ql4_printk(KERN_WARNING, ha, 4275 "%s: fw_ddb_dma_pool allocation failed..\n", 4276 __func__); 4277 goto mem_alloc_error_exit; 4278 } 4279 4280 return QLA_SUCCESS; 4281 4282 mem_alloc_error_exit: 4283 qla4xxx_mem_free(ha); 4284 return QLA_ERROR; 4285 } 4286 4287 /** 4288 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4289 * @ha: adapter block pointer. 4290 * 4291 * Note: The caller should not hold the idc lock. 4292 **/ 4293 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4294 { 4295 uint32_t temp, temp_state, temp_val; 4296 int status = QLA_SUCCESS; 4297 4298 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4299 4300 temp_state = qla82xx_get_temp_state(temp); 4301 temp_val = qla82xx_get_temp_val(temp); 4302 4303 if (temp_state == QLA82XX_TEMP_PANIC) { 4304 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4305 " exceeds maximum allowed. Hardware has been shut" 4306 " down.\n", temp_val); 4307 status = QLA_ERROR; 4308 } else if (temp_state == QLA82XX_TEMP_WARN) { 4309 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4310 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4311 " degrees C exceeds operating range." 4312 " Immediate action needed.\n", temp_val); 4313 } else { 4314 if (ha->temperature == QLA82XX_TEMP_WARN) 4315 ql4_printk(KERN_INFO, ha, "Device temperature is" 4316 " now %d degrees C in normal range.\n", 4317 temp_val); 4318 } 4319 ha->temperature = temp_state; 4320 return status; 4321 } 4322 4323 /** 4324 * qla4_8xxx_check_fw_alive - Check firmware health 4325 * @ha: Pointer to host adapter structure. 4326 * 4327 * Context: Interrupt 4328 **/ 4329 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4330 { 4331 uint32_t fw_heartbeat_counter; 4332 int status = QLA_SUCCESS; 4333 4334 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4335 QLA8XXX_PEG_ALIVE_COUNTER); 4336 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4337 if (fw_heartbeat_counter == 0xffffffff) { 4338 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4339 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4340 ha->host_no, __func__)); 4341 return status; 4342 } 4343 4344 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4345 ha->seconds_since_last_heartbeat++; 4346 /* FW not alive after 2 seconds */ 4347 if (ha->seconds_since_last_heartbeat == 2) { 4348 ha->seconds_since_last_heartbeat = 0; 4349 qla4_8xxx_dump_peg_reg(ha); 4350 status = QLA_ERROR; 4351 } 4352 } else 4353 ha->seconds_since_last_heartbeat = 0; 4354 4355 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4356 return status; 4357 } 4358 4359 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4360 { 4361 uint32_t halt_status; 4362 int halt_status_unrecoverable = 0; 4363 4364 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4365 4366 if (is_qla8022(ha)) { 4367 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4368 __func__); 4369 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4370 CRB_NIU_XG_PAUSE_CTL_P0 | 4371 CRB_NIU_XG_PAUSE_CTL_P1); 4372 4373 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4374 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4375 __func__); 4376 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4377 halt_status_unrecoverable = 1; 4378 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4379 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4380 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4381 __func__); 4382 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4383 halt_status_unrecoverable = 1; 4384 } 4385 4386 /* 4387 * Since we cannot change dev_state in interrupt context, 4388 * set appropriate DPC flag then wakeup DPC 4389 */ 4390 if (halt_status_unrecoverable) { 4391 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4392 } else { 4393 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4394 __func__); 4395 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4396 } 4397 qla4xxx_mailbox_premature_completion(ha); 4398 qla4xxx_wake_dpc(ha); 4399 } 4400 4401 /** 4402 * qla4_8xxx_watchdog - Poll dev state 4403 * @ha: Pointer to host adapter structure. 4404 * 4405 * Context: Interrupt 4406 **/ 4407 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4408 { 4409 uint32_t dev_state; 4410 uint32_t idc_ctrl; 4411 4412 if (is_qla8032(ha) && 4413 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4414 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4415 __func__, ha->func_num); 4416 4417 /* don't poll if reset is going on */ 4418 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4419 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4420 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4421 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4422 4423 if (qla4_8xxx_check_temp(ha)) { 4424 if (is_qla8022(ha)) { 4425 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4426 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4427 CRB_NIU_XG_PAUSE_CTL_P0 | 4428 CRB_NIU_XG_PAUSE_CTL_P1); 4429 } 4430 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4431 qla4xxx_wake_dpc(ha); 4432 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4433 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4434 4435 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4436 __func__); 4437 4438 if (is_qla8032(ha) || is_qla8042(ha)) { 4439 idc_ctrl = qla4_83xx_rd_reg(ha, 4440 QLA83XX_IDC_DRV_CTRL); 4441 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4442 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4443 __func__); 4444 qla4xxx_mailbox_premature_completion( 4445 ha); 4446 } 4447 } 4448 4449 if ((is_qla8032(ha) || is_qla8042(ha)) || 4450 (is_qla8022(ha) && !ql4xdontresethba)) { 4451 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4452 qla4xxx_wake_dpc(ha); 4453 } 4454 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4455 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4456 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4457 __func__); 4458 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4459 qla4xxx_wake_dpc(ha); 4460 } else { 4461 /* Check firmware health */ 4462 if (qla4_8xxx_check_fw_alive(ha)) 4463 qla4_8xxx_process_fw_error(ha); 4464 } 4465 } 4466 } 4467 4468 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4469 { 4470 struct iscsi_session *sess; 4471 struct ddb_entry *ddb_entry; 4472 struct scsi_qla_host *ha; 4473 4474 sess = cls_sess->dd_data; 4475 ddb_entry = sess->dd_data; 4476 ha = ddb_entry->ha; 4477 4478 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4479 return; 4480 4481 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4482 !iscsi_is_session_online(cls_sess)) { 4483 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4484 INVALID_ENTRY) { 4485 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4486 0) { 4487 atomic_set(&ddb_entry->retry_relogin_timer, 4488 INVALID_ENTRY); 4489 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4490 set_bit(DF_RELOGIN, &ddb_entry->flags); 4491 DEBUG2(ql4_printk(KERN_INFO, ha, 4492 "%s: index [%d] login device\n", 4493 __func__, ddb_entry->fw_ddb_index)); 4494 } else 4495 atomic_dec(&ddb_entry->retry_relogin_timer); 4496 } 4497 } 4498 4499 /* Wait for relogin to timeout */ 4500 if (atomic_read(&ddb_entry->relogin_timer) && 4501 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4502 /* 4503 * If the relogin times out and the device is 4504 * still NOT ONLINE then try and relogin again. 4505 */ 4506 if (!iscsi_is_session_online(cls_sess)) { 4507 /* Reset retry relogin timer */ 4508 atomic_inc(&ddb_entry->relogin_retry_count); 4509 DEBUG2(ql4_printk(KERN_INFO, ha, 4510 "%s: index[%d] relogin timed out-retrying" 4511 " relogin (%d), retry (%d)\n", __func__, 4512 ddb_entry->fw_ddb_index, 4513 atomic_read(&ddb_entry->relogin_retry_count), 4514 ddb_entry->default_time2wait + 4)); 4515 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4516 atomic_set(&ddb_entry->retry_relogin_timer, 4517 ddb_entry->default_time2wait + 4); 4518 } 4519 } 4520 } 4521 4522 /** 4523 * qla4xxx_timer - checks every second for work to do. 4524 * @ha: Pointer to host adapter structure. 4525 **/ 4526 static void qla4xxx_timer(struct timer_list *t) 4527 { 4528 struct scsi_qla_host *ha = from_timer(ha, t, timer); 4529 int start_dpc = 0; 4530 uint16_t w; 4531 4532 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4533 4534 /* If we are in the middle of AER/EEH processing 4535 * skip any processing and reschedule the timer 4536 */ 4537 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4538 mod_timer(&ha->timer, jiffies + HZ); 4539 return; 4540 } 4541 4542 /* Hardware read to trigger an EEH error during mailbox waits. */ 4543 if (!pci_channel_offline(ha->pdev)) 4544 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4545 4546 if (is_qla80XX(ha)) 4547 qla4_8xxx_watchdog(ha); 4548 4549 if (is_qla40XX(ha)) { 4550 /* Check for heartbeat interval. */ 4551 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4552 ha->heartbeat_interval != 0) { 4553 ha->seconds_since_last_heartbeat++; 4554 if (ha->seconds_since_last_heartbeat > 4555 ha->heartbeat_interval + 2) 4556 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4557 } 4558 } 4559 4560 /* Process any deferred work. */ 4561 if (!list_empty(&ha->work_list)) 4562 start_dpc++; 4563 4564 /* Wakeup the dpc routine for this adapter, if needed. */ 4565 if (start_dpc || 4566 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4567 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4568 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4569 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4570 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4571 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4572 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4573 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4574 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4575 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) || 4576 test_bit(DPC_AEN, &ha->dpc_flags)) { 4577 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4578 " - dpc flags = 0x%lx\n", 4579 ha->host_no, __func__, ha->dpc_flags)); 4580 qla4xxx_wake_dpc(ha); 4581 } 4582 4583 /* Reschedule timer thread to call us back in one second */ 4584 mod_timer(&ha->timer, jiffies + HZ); 4585 4586 DEBUG2(ha->seconds_since_last_intr++); 4587 } 4588 4589 /** 4590 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4591 * @ha: Pointer to host adapter structure. 4592 * 4593 * This routine stalls the driver until all outstanding commands are returned. 4594 * Caller must release the Hardware Lock prior to calling this routine. 4595 **/ 4596 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4597 { 4598 uint32_t index = 0; 4599 unsigned long flags; 4600 struct scsi_cmnd *cmd; 4601 unsigned long wtime; 4602 uint32_t wtmo; 4603 4604 if (is_qla40XX(ha)) 4605 wtmo = WAIT_CMD_TOV; 4606 else 4607 wtmo = ha->nx_reset_timeout / 2; 4608 4609 wtime = jiffies + (wtmo * HZ); 4610 4611 DEBUG2(ql4_printk(KERN_INFO, ha, 4612 "Wait up to %u seconds for cmds to complete\n", 4613 wtmo)); 4614 4615 while (!time_after_eq(jiffies, wtime)) { 4616 spin_lock_irqsave(&ha->hardware_lock, flags); 4617 /* Find a command that hasn't completed. */ 4618 for (index = 0; index < ha->host->can_queue; index++) { 4619 cmd = scsi_host_find_tag(ha->host, index); 4620 /* 4621 * We cannot just check if the index is valid, 4622 * becase if we are run from the scsi eh, then 4623 * the scsi/block layer is going to prevent 4624 * the tag from being released. 4625 */ 4626 if (cmd != NULL && CMD_SP(cmd)) 4627 break; 4628 } 4629 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4630 4631 /* If No Commands are pending, wait is complete */ 4632 if (index == ha->host->can_queue) 4633 return QLA_SUCCESS; 4634 4635 msleep(1000); 4636 } 4637 /* If we timed out on waiting for commands to come back 4638 * return ERROR. */ 4639 return QLA_ERROR; 4640 } 4641 4642 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4643 { 4644 uint32_t ctrl_status; 4645 unsigned long flags = 0; 4646 4647 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4648 4649 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4650 return QLA_ERROR; 4651 4652 spin_lock_irqsave(&ha->hardware_lock, flags); 4653 4654 /* 4655 * If the SCSI Reset Interrupt bit is set, clear it. 4656 * Otherwise, the Soft Reset won't work. 4657 */ 4658 ctrl_status = readw(&ha->reg->ctrl_status); 4659 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4660 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4661 4662 /* Issue Soft Reset */ 4663 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4664 readl(&ha->reg->ctrl_status); 4665 4666 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4667 return QLA_SUCCESS; 4668 } 4669 4670 /** 4671 * qla4xxx_soft_reset - performs soft reset. 4672 * @ha: Pointer to host adapter structure. 4673 **/ 4674 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4675 { 4676 uint32_t max_wait_time; 4677 unsigned long flags = 0; 4678 int status; 4679 uint32_t ctrl_status; 4680 4681 status = qla4xxx_hw_reset(ha); 4682 if (status != QLA_SUCCESS) 4683 return status; 4684 4685 status = QLA_ERROR; 4686 /* Wait until the Network Reset Intr bit is cleared */ 4687 max_wait_time = RESET_INTR_TOV; 4688 do { 4689 spin_lock_irqsave(&ha->hardware_lock, flags); 4690 ctrl_status = readw(&ha->reg->ctrl_status); 4691 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4692 4693 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4694 break; 4695 4696 msleep(1000); 4697 } while ((--max_wait_time)); 4698 4699 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4700 DEBUG2(printk(KERN_WARNING 4701 "scsi%ld: Network Reset Intr not cleared by " 4702 "Network function, clearing it now!\n", 4703 ha->host_no)); 4704 spin_lock_irqsave(&ha->hardware_lock, flags); 4705 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4706 readl(&ha->reg->ctrl_status); 4707 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4708 } 4709 4710 /* Wait until the firmware tells us the Soft Reset is done */ 4711 max_wait_time = SOFT_RESET_TOV; 4712 do { 4713 spin_lock_irqsave(&ha->hardware_lock, flags); 4714 ctrl_status = readw(&ha->reg->ctrl_status); 4715 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4716 4717 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4718 status = QLA_SUCCESS; 4719 break; 4720 } 4721 4722 msleep(1000); 4723 } while ((--max_wait_time)); 4724 4725 /* 4726 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4727 * after the soft reset has taken place. 4728 */ 4729 spin_lock_irqsave(&ha->hardware_lock, flags); 4730 ctrl_status = readw(&ha->reg->ctrl_status); 4731 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4732 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4733 readl(&ha->reg->ctrl_status); 4734 } 4735 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4736 4737 /* If soft reset fails then most probably the bios on other 4738 * function is also enabled. 4739 * Since the initialization is sequential the other fn 4740 * wont be able to acknowledge the soft reset. 4741 * Issue a force soft reset to workaround this scenario. 4742 */ 4743 if (max_wait_time == 0) { 4744 /* Issue Force Soft Reset */ 4745 spin_lock_irqsave(&ha->hardware_lock, flags); 4746 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4747 readl(&ha->reg->ctrl_status); 4748 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4749 /* Wait until the firmware tells us the Soft Reset is done */ 4750 max_wait_time = SOFT_RESET_TOV; 4751 do { 4752 spin_lock_irqsave(&ha->hardware_lock, flags); 4753 ctrl_status = readw(&ha->reg->ctrl_status); 4754 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4755 4756 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4757 status = QLA_SUCCESS; 4758 break; 4759 } 4760 4761 msleep(1000); 4762 } while ((--max_wait_time)); 4763 } 4764 4765 return status; 4766 } 4767 4768 /** 4769 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4770 * @ha: Pointer to host adapter structure. 4771 * @res: returned scsi status 4772 * 4773 * This routine is called just prior to a HARD RESET to return all 4774 * outstanding commands back to the Operating System. 4775 * Caller should make sure that the following locks are released 4776 * before this calling routine: Hardware lock, and io_request_lock. 4777 **/ 4778 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4779 { 4780 struct srb *srb; 4781 int i; 4782 unsigned long flags; 4783 4784 spin_lock_irqsave(&ha->hardware_lock, flags); 4785 for (i = 0; i < ha->host->can_queue; i++) { 4786 srb = qla4xxx_del_from_active_array(ha, i); 4787 if (srb != NULL) { 4788 srb->cmd->result = res; 4789 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4790 } 4791 } 4792 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4793 } 4794 4795 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4796 { 4797 clear_bit(AF_ONLINE, &ha->flags); 4798 4799 /* Disable the board */ 4800 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4801 4802 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4803 qla4xxx_mark_all_devices_missing(ha); 4804 clear_bit(AF_INIT_DONE, &ha->flags); 4805 } 4806 4807 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4808 { 4809 struct iscsi_session *sess; 4810 struct ddb_entry *ddb_entry; 4811 4812 sess = cls_session->dd_data; 4813 ddb_entry = sess->dd_data; 4814 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4815 4816 if (ddb_entry->ddb_type == FLASH_DDB) 4817 iscsi_block_session(ddb_entry->sess); 4818 else 4819 iscsi_session_failure(cls_session->dd_data, 4820 ISCSI_ERR_CONN_FAILED); 4821 } 4822 4823 /** 4824 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4825 * @ha: Pointer to host adapter structure. 4826 **/ 4827 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4828 { 4829 int status = QLA_ERROR; 4830 uint8_t reset_chip = 0; 4831 uint32_t dev_state; 4832 unsigned long wait; 4833 4834 /* Stall incoming I/O until we are done */ 4835 scsi_block_requests(ha->host); 4836 clear_bit(AF_ONLINE, &ha->flags); 4837 clear_bit(AF_LINK_UP, &ha->flags); 4838 4839 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4840 4841 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4842 4843 if ((is_qla8032(ha) || is_qla8042(ha)) && 4844 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4845 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4846 __func__); 4847 /* disable pause frame for ISP83xx */ 4848 qla4_83xx_disable_pause(ha); 4849 } 4850 4851 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4852 4853 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4854 reset_chip = 1; 4855 4856 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4857 * do not reset adapter, jump to initialize_adapter */ 4858 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4859 status = QLA_SUCCESS; 4860 goto recover_ha_init_adapter; 4861 } 4862 4863 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4864 * from eh_host_reset or ioctl module */ 4865 if (is_qla80XX(ha) && !reset_chip && 4866 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4867 4868 DEBUG2(ql4_printk(KERN_INFO, ha, 4869 "scsi%ld: %s - Performing stop_firmware...\n", 4870 ha->host_no, __func__)); 4871 status = ha->isp_ops->reset_firmware(ha); 4872 if (status == QLA_SUCCESS) { 4873 ha->isp_ops->disable_intrs(ha); 4874 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4875 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4876 } else { 4877 /* If the stop_firmware fails then 4878 * reset the entire chip */ 4879 reset_chip = 1; 4880 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4881 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4882 } 4883 } 4884 4885 /* Issue full chip reset if recovering from a catastrophic error, 4886 * or if stop_firmware fails for ISP-8xxx. 4887 * This is the default case for ISP-4xxx */ 4888 if (is_qla40XX(ha) || reset_chip) { 4889 if (is_qla40XX(ha)) 4890 goto chip_reset; 4891 4892 /* Check if 8XXX firmware is alive or not 4893 * We may have arrived here from NEED_RESET 4894 * detection only */ 4895 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4896 goto chip_reset; 4897 4898 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4899 while (time_before(jiffies, wait)) { 4900 if (qla4_8xxx_check_fw_alive(ha)) { 4901 qla4xxx_mailbox_premature_completion(ha); 4902 break; 4903 } 4904 4905 set_current_state(TASK_UNINTERRUPTIBLE); 4906 schedule_timeout(HZ); 4907 } 4908 chip_reset: 4909 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4910 qla4xxx_cmd_wait(ha); 4911 4912 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4913 DEBUG2(ql4_printk(KERN_INFO, ha, 4914 "scsi%ld: %s - Performing chip reset..\n", 4915 ha->host_no, __func__)); 4916 status = ha->isp_ops->reset_chip(ha); 4917 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4918 } 4919 4920 /* Flush any pending ddb changed AENs */ 4921 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4922 4923 recover_ha_init_adapter: 4924 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4925 if (status == QLA_SUCCESS) { 4926 /* For ISP-4xxx, force function 1 to always initialize 4927 * before function 3 to prevent both funcions from 4928 * stepping on top of the other */ 4929 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4930 ssleep(6); 4931 4932 /* NOTE: AF_ONLINE flag set upon successful completion of 4933 * qla4xxx_initialize_adapter */ 4934 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4935 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4936 status = qla4_8xxx_check_init_adapter_retry(ha); 4937 if (status == QLA_ERROR) { 4938 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4939 ha->host_no, __func__); 4940 qla4xxx_dead_adapter_cleanup(ha); 4941 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4942 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4943 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4944 &ha->dpc_flags); 4945 goto exit_recover; 4946 } 4947 } 4948 } 4949 4950 /* Retry failed adapter initialization, if necessary 4951 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4952 * case to prevent ping-pong resets between functions */ 4953 if (!test_bit(AF_ONLINE, &ha->flags) && 4954 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4955 /* Adapter initialization failed, see if we can retry 4956 * resetting the ha. 4957 * Since we don't want to block the DPC for too long 4958 * with multiple resets in the same thread, 4959 * utilize DPC to retry */ 4960 if (is_qla80XX(ha)) { 4961 ha->isp_ops->idc_lock(ha); 4962 dev_state = qla4_8xxx_rd_direct(ha, 4963 QLA8XXX_CRB_DEV_STATE); 4964 ha->isp_ops->idc_unlock(ha); 4965 if (dev_state == QLA8XXX_DEV_FAILED) { 4966 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4967 "recover adapter. H/W is in Failed " 4968 "state\n", __func__); 4969 qla4xxx_dead_adapter_cleanup(ha); 4970 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4971 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4972 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4973 &ha->dpc_flags); 4974 status = QLA_ERROR; 4975 4976 goto exit_recover; 4977 } 4978 } 4979 4980 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 4981 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 4982 DEBUG2(printk("scsi%ld: recover adapter - retrying " 4983 "(%d) more times\n", ha->host_no, 4984 ha->retry_reset_ha_cnt)); 4985 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4986 status = QLA_ERROR; 4987 } else { 4988 if (ha->retry_reset_ha_cnt > 0) { 4989 /* Schedule another Reset HA--DPC will retry */ 4990 ha->retry_reset_ha_cnt--; 4991 DEBUG2(printk("scsi%ld: recover adapter - " 4992 "retry remaining %d\n", 4993 ha->host_no, 4994 ha->retry_reset_ha_cnt)); 4995 status = QLA_ERROR; 4996 } 4997 4998 if (ha->retry_reset_ha_cnt == 0) { 4999 /* Recover adapter retries have been exhausted. 5000 * Adapter DEAD */ 5001 DEBUG2(printk("scsi%ld: recover adapter " 5002 "failed - board disabled\n", 5003 ha->host_no)); 5004 qla4xxx_dead_adapter_cleanup(ha); 5005 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5006 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5007 clear_bit(DPC_RESET_HA_FW_CONTEXT, 5008 &ha->dpc_flags); 5009 status = QLA_ERROR; 5010 } 5011 } 5012 } else { 5013 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5014 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5015 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5016 } 5017 5018 exit_recover: 5019 ha->adapter_error_count++; 5020 5021 if (test_bit(AF_ONLINE, &ha->flags)) 5022 ha->isp_ops->enable_intrs(ha); 5023 5024 scsi_unblock_requests(ha->host); 5025 5026 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 5027 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 5028 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 5029 5030 return status; 5031 } 5032 5033 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 5034 { 5035 struct iscsi_session *sess; 5036 struct ddb_entry *ddb_entry; 5037 struct scsi_qla_host *ha; 5038 5039 sess = cls_session->dd_data; 5040 ddb_entry = sess->dd_data; 5041 ha = ddb_entry->ha; 5042 if (!iscsi_is_session_online(cls_session)) { 5043 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5044 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5045 " unblock session\n", ha->host_no, __func__, 5046 ddb_entry->fw_ddb_index); 5047 iscsi_unblock_session(ddb_entry->sess); 5048 } else { 5049 /* Trigger relogin */ 5050 if (ddb_entry->ddb_type == FLASH_DDB) { 5051 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5052 test_bit(DF_DISABLE_RELOGIN, 5053 &ddb_entry->flags))) 5054 qla4xxx_arm_relogin_timer(ddb_entry); 5055 } else 5056 iscsi_session_failure(cls_session->dd_data, 5057 ISCSI_ERR_CONN_FAILED); 5058 } 5059 } 5060 } 5061 5062 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5063 { 5064 struct iscsi_session *sess; 5065 struct ddb_entry *ddb_entry; 5066 struct scsi_qla_host *ha; 5067 5068 sess = cls_session->dd_data; 5069 ddb_entry = sess->dd_data; 5070 ha = ddb_entry->ha; 5071 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5072 " unblock session\n", ha->host_no, __func__, 5073 ddb_entry->fw_ddb_index); 5074 5075 iscsi_unblock_session(ddb_entry->sess); 5076 5077 /* Start scan target */ 5078 if (test_bit(AF_ONLINE, &ha->flags)) { 5079 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5080 " start scan\n", ha->host_no, __func__, 5081 ddb_entry->fw_ddb_index); 5082 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 5083 } 5084 return QLA_SUCCESS; 5085 } 5086 5087 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5088 { 5089 struct iscsi_session *sess; 5090 struct ddb_entry *ddb_entry; 5091 struct scsi_qla_host *ha; 5092 int status = QLA_SUCCESS; 5093 5094 sess = cls_session->dd_data; 5095 ddb_entry = sess->dd_data; 5096 ha = ddb_entry->ha; 5097 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5098 " unblock user space session\n", ha->host_no, __func__, 5099 ddb_entry->fw_ddb_index); 5100 5101 if (!iscsi_is_session_online(cls_session)) { 5102 iscsi_conn_start(ddb_entry->conn); 5103 iscsi_conn_login_event(ddb_entry->conn, 5104 ISCSI_CONN_STATE_LOGGED_IN); 5105 } else { 5106 ql4_printk(KERN_INFO, ha, 5107 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5108 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5109 cls_session->sid); 5110 status = QLA_ERROR; 5111 } 5112 5113 return status; 5114 } 5115 5116 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5117 { 5118 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5119 } 5120 5121 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5122 { 5123 uint16_t relogin_timer; 5124 struct iscsi_session *sess; 5125 struct ddb_entry *ddb_entry; 5126 struct scsi_qla_host *ha; 5127 5128 sess = cls_sess->dd_data; 5129 ddb_entry = sess->dd_data; 5130 ha = ddb_entry->ha; 5131 5132 relogin_timer = max(ddb_entry->default_relogin_timeout, 5133 (uint16_t)RELOGIN_TOV); 5134 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5135 5136 DEBUG2(ql4_printk(KERN_INFO, ha, 5137 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5138 ddb_entry->fw_ddb_index, relogin_timer)); 5139 5140 qla4xxx_login_flash_ddb(cls_sess); 5141 } 5142 5143 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5144 { 5145 struct iscsi_session *sess; 5146 struct ddb_entry *ddb_entry; 5147 struct scsi_qla_host *ha; 5148 5149 sess = cls_sess->dd_data; 5150 ddb_entry = sess->dd_data; 5151 ha = ddb_entry->ha; 5152 5153 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5154 return; 5155 5156 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5157 return; 5158 5159 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5160 !iscsi_is_session_online(cls_sess)) { 5161 DEBUG2(ql4_printk(KERN_INFO, ha, 5162 "relogin issued\n")); 5163 qla4xxx_relogin_flash_ddb(cls_sess); 5164 } 5165 } 5166 5167 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5168 { 5169 if (ha->dpc_thread) 5170 queue_work(ha->dpc_thread, &ha->dpc_work); 5171 } 5172 5173 static struct qla4_work_evt * 5174 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5175 enum qla4_work_type type) 5176 { 5177 struct qla4_work_evt *e; 5178 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5179 5180 e = kzalloc(size, GFP_ATOMIC); 5181 if (!e) 5182 return NULL; 5183 5184 INIT_LIST_HEAD(&e->list); 5185 e->type = type; 5186 return e; 5187 } 5188 5189 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5190 struct qla4_work_evt *e) 5191 { 5192 unsigned long flags; 5193 5194 spin_lock_irqsave(&ha->work_lock, flags); 5195 list_add_tail(&e->list, &ha->work_list); 5196 spin_unlock_irqrestore(&ha->work_lock, flags); 5197 qla4xxx_wake_dpc(ha); 5198 } 5199 5200 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5201 enum iscsi_host_event_code aen_code, 5202 uint32_t data_size, uint8_t *data) 5203 { 5204 struct qla4_work_evt *e; 5205 5206 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5207 if (!e) 5208 return QLA_ERROR; 5209 5210 e->u.aen.code = aen_code; 5211 e->u.aen.data_size = data_size; 5212 memcpy(e->u.aen.data, data, data_size); 5213 5214 qla4xxx_post_work(ha, e); 5215 5216 return QLA_SUCCESS; 5217 } 5218 5219 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5220 uint32_t status, uint32_t pid, 5221 uint32_t data_size, uint8_t *data) 5222 { 5223 struct qla4_work_evt *e; 5224 5225 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5226 if (!e) 5227 return QLA_ERROR; 5228 5229 e->u.ping.status = status; 5230 e->u.ping.pid = pid; 5231 e->u.ping.data_size = data_size; 5232 memcpy(e->u.ping.data, data, data_size); 5233 5234 qla4xxx_post_work(ha, e); 5235 5236 return QLA_SUCCESS; 5237 } 5238 5239 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5240 { 5241 struct qla4_work_evt *e, *tmp; 5242 unsigned long flags; 5243 LIST_HEAD(work); 5244 5245 spin_lock_irqsave(&ha->work_lock, flags); 5246 list_splice_init(&ha->work_list, &work); 5247 spin_unlock_irqrestore(&ha->work_lock, flags); 5248 5249 list_for_each_entry_safe(e, tmp, &work, list) { 5250 list_del_init(&e->list); 5251 5252 switch (e->type) { 5253 case QLA4_EVENT_AEN: 5254 iscsi_post_host_event(ha->host_no, 5255 &qla4xxx_iscsi_transport, 5256 e->u.aen.code, 5257 e->u.aen.data_size, 5258 e->u.aen.data); 5259 break; 5260 case QLA4_EVENT_PING_STATUS: 5261 iscsi_ping_comp_event(ha->host_no, 5262 &qla4xxx_iscsi_transport, 5263 e->u.ping.status, 5264 e->u.ping.pid, 5265 e->u.ping.data_size, 5266 e->u.ping.data); 5267 break; 5268 default: 5269 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5270 "supported", e->type); 5271 } 5272 kfree(e); 5273 } 5274 } 5275 5276 /** 5277 * qla4xxx_do_dpc - dpc routine 5278 * @data: in our case pointer to adapter structure 5279 * 5280 * This routine is a task that is schedule by the interrupt handler 5281 * to perform the background processing for interrupts. We put it 5282 * on a task queue that is consumed whenever the scheduler runs; that's 5283 * so you can do anything (i.e. put the process to sleep etc). In fact, 5284 * the mid-level tries to sleep when it reaches the driver threshold 5285 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5286 **/ 5287 static void qla4xxx_do_dpc(struct work_struct *work) 5288 { 5289 struct scsi_qla_host *ha = 5290 container_of(work, struct scsi_qla_host, dpc_work); 5291 int status = QLA_ERROR; 5292 5293 DEBUG2(ql4_printk(KERN_INFO, ha, 5294 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5295 ha->host_no, __func__, ha->flags, ha->dpc_flags)); 5296 5297 /* Initialization not yet finished. Don't do anything yet. */ 5298 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5299 return; 5300 5301 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5302 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5303 ha->host_no, __func__, ha->flags)); 5304 return; 5305 } 5306 5307 /* post events to application */ 5308 qla4xxx_do_work(ha); 5309 5310 if (is_qla80XX(ha)) { 5311 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5312 if (is_qla8032(ha) || is_qla8042(ha)) { 5313 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5314 __func__); 5315 /* disable pause frame for ISP83xx */ 5316 qla4_83xx_disable_pause(ha); 5317 } 5318 5319 ha->isp_ops->idc_lock(ha); 5320 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5321 QLA8XXX_DEV_FAILED); 5322 ha->isp_ops->idc_unlock(ha); 5323 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5324 qla4_8xxx_device_state_handler(ha); 5325 } 5326 5327 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5328 if (is_qla8042(ha)) { 5329 if (ha->idc_info.info2 & 5330 ENABLE_INTERNAL_LOOPBACK) { 5331 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5332 __func__); 5333 status = qla4_84xx_config_acb(ha, 5334 ACB_CONFIG_DISABLE); 5335 if (status != QLA_SUCCESS) { 5336 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5337 __func__); 5338 } 5339 } 5340 } 5341 qla4_83xx_post_idc_ack(ha); 5342 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5343 } 5344 5345 if (is_qla8042(ha) && 5346 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5347 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5348 __func__); 5349 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5350 QLA_SUCCESS) { 5351 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5352 __func__); 5353 } 5354 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5355 } 5356 5357 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5358 qla4_8xxx_need_qsnt_handler(ha); 5359 } 5360 } 5361 5362 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5363 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5364 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5365 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5366 if ((is_qla8022(ha) && ql4xdontresethba) || 5367 ((is_qla8032(ha) || is_qla8042(ha)) && 5368 qla4_83xx_idc_dontreset(ha))) { 5369 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5370 ha->host_no, __func__)); 5371 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5372 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5373 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5374 goto dpc_post_reset_ha; 5375 } 5376 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5377 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5378 qla4xxx_recover_adapter(ha); 5379 5380 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5381 uint8_t wait_time = RESET_INTR_TOV; 5382 5383 while ((readw(&ha->reg->ctrl_status) & 5384 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5385 if (--wait_time == 0) 5386 break; 5387 msleep(1000); 5388 } 5389 if (wait_time == 0) 5390 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5391 "bit not cleared-- resetting\n", 5392 ha->host_no, __func__)); 5393 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5394 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5395 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5396 status = qla4xxx_recover_adapter(ha); 5397 } 5398 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5399 if (status == QLA_SUCCESS) 5400 ha->isp_ops->enable_intrs(ha); 5401 } 5402 } 5403 5404 dpc_post_reset_ha: 5405 /* ---- process AEN? --- */ 5406 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5407 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5408 5409 /* ---- Get DHCP IP Address? --- */ 5410 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5411 qla4xxx_get_dhcp_ip_address(ha); 5412 5413 /* ---- relogin device? --- */ 5414 if (adapter_up(ha) && 5415 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5416 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5417 } 5418 5419 /* ---- link change? --- */ 5420 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5421 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5422 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5423 /* ---- link down? --- */ 5424 qla4xxx_mark_all_devices_missing(ha); 5425 } else { 5426 /* ---- link up? --- * 5427 * F/W will auto login to all devices ONLY ONCE after 5428 * link up during driver initialization and runtime 5429 * fatal error recovery. Therefore, the driver must 5430 * manually relogin to devices when recovering from 5431 * connection failures, logouts, expired KATO, etc. */ 5432 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5433 qla4xxx_build_ddb_list(ha, ha->is_reset); 5434 iscsi_host_for_each_session(ha->host, 5435 qla4xxx_login_flash_ddb); 5436 } else 5437 qla4xxx_relogin_all_devices(ha); 5438 } 5439 } 5440 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) { 5441 if (qla4xxx_sysfs_ddb_export(ha)) 5442 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n", 5443 __func__); 5444 } 5445 } 5446 5447 /** 5448 * qla4xxx_free_adapter - release the adapter 5449 * @ha: pointer to adapter structure 5450 **/ 5451 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5452 { 5453 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5454 5455 /* Turn-off interrupts on the card. */ 5456 ha->isp_ops->disable_intrs(ha); 5457 5458 if (is_qla40XX(ha)) { 5459 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5460 &ha->reg->ctrl_status); 5461 readl(&ha->reg->ctrl_status); 5462 } else if (is_qla8022(ha)) { 5463 writel(0, &ha->qla4_82xx_reg->host_int); 5464 readl(&ha->qla4_82xx_reg->host_int); 5465 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5466 writel(0, &ha->qla4_83xx_reg->risc_intr); 5467 readl(&ha->qla4_83xx_reg->risc_intr); 5468 } 5469 5470 /* Remove timer thread, if present */ 5471 if (ha->timer_active) 5472 qla4xxx_stop_timer(ha); 5473 5474 /* Kill the kernel thread for this host */ 5475 if (ha->dpc_thread) 5476 destroy_workqueue(ha->dpc_thread); 5477 5478 /* Kill the kernel thread for this host */ 5479 if (ha->task_wq) 5480 destroy_workqueue(ha->task_wq); 5481 5482 /* Put firmware in known state */ 5483 ha->isp_ops->reset_firmware(ha); 5484 5485 if (is_qla80XX(ha)) { 5486 ha->isp_ops->idc_lock(ha); 5487 qla4_8xxx_clear_drv_active(ha); 5488 ha->isp_ops->idc_unlock(ha); 5489 } 5490 5491 /* Detach interrupts */ 5492 qla4xxx_free_irqs(ha); 5493 5494 /* free extra memory */ 5495 qla4xxx_mem_free(ha); 5496 } 5497 5498 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5499 { 5500 int status = 0; 5501 unsigned long mem_base, mem_len, db_base, db_len; 5502 struct pci_dev *pdev = ha->pdev; 5503 5504 status = pci_request_regions(pdev, DRIVER_NAME); 5505 if (status) { 5506 printk(KERN_WARNING 5507 "scsi(%ld) Failed to reserve PIO regions (%s) " 5508 "status=%d\n", ha->host_no, pci_name(pdev), status); 5509 goto iospace_error_exit; 5510 } 5511 5512 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5513 __func__, pdev->revision)); 5514 ha->revision_id = pdev->revision; 5515 5516 /* remap phys address */ 5517 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5518 mem_len = pci_resource_len(pdev, 0); 5519 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5520 __func__, mem_base, mem_len)); 5521 5522 /* mapping of pcibase pointer */ 5523 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5524 if (!ha->nx_pcibase) { 5525 printk(KERN_ERR 5526 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5527 pci_release_regions(ha->pdev); 5528 goto iospace_error_exit; 5529 } 5530 5531 /* Mapping of IO base pointer, door bell read and write pointer */ 5532 5533 /* mapping of IO base pointer */ 5534 if (is_qla8022(ha)) { 5535 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5536 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5537 (ha->pdev->devfn << 11)); 5538 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5539 QLA82XX_CAM_RAM_DB2); 5540 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5541 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5542 ((uint8_t *)ha->nx_pcibase); 5543 } 5544 5545 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 5546 db_len = pci_resource_len(pdev, 4); 5547 5548 return 0; 5549 iospace_error_exit: 5550 return -ENOMEM; 5551 } 5552 5553 /*** 5554 * qla4xxx_iospace_config - maps registers 5555 * @ha: pointer to adapter structure 5556 * 5557 * This routines maps HBA's registers from the pci address space 5558 * into the kernel virtual address space for memory mapped i/o. 5559 **/ 5560 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5561 { 5562 unsigned long pio, pio_len, pio_flags; 5563 unsigned long mmio, mmio_len, mmio_flags; 5564 5565 pio = pci_resource_start(ha->pdev, 0); 5566 pio_len = pci_resource_len(ha->pdev, 0); 5567 pio_flags = pci_resource_flags(ha->pdev, 0); 5568 if (pio_flags & IORESOURCE_IO) { 5569 if (pio_len < MIN_IOBASE_LEN) { 5570 ql4_printk(KERN_WARNING, ha, 5571 "Invalid PCI I/O region size\n"); 5572 pio = 0; 5573 } 5574 } else { 5575 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5576 pio = 0; 5577 } 5578 5579 /* Use MMIO operations for all accesses. */ 5580 mmio = pci_resource_start(ha->pdev, 1); 5581 mmio_len = pci_resource_len(ha->pdev, 1); 5582 mmio_flags = pci_resource_flags(ha->pdev, 1); 5583 5584 if (!(mmio_flags & IORESOURCE_MEM)) { 5585 ql4_printk(KERN_ERR, ha, 5586 "region #0 not an MMIO resource, aborting\n"); 5587 5588 goto iospace_error_exit; 5589 } 5590 5591 if (mmio_len < MIN_IOBASE_LEN) { 5592 ql4_printk(KERN_ERR, ha, 5593 "Invalid PCI mem region size, aborting\n"); 5594 goto iospace_error_exit; 5595 } 5596 5597 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5598 ql4_printk(KERN_WARNING, ha, 5599 "Failed to reserve PIO/MMIO regions\n"); 5600 5601 goto iospace_error_exit; 5602 } 5603 5604 ha->pio_address = pio; 5605 ha->pio_length = pio_len; 5606 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5607 if (!ha->reg) { 5608 ql4_printk(KERN_ERR, ha, 5609 "cannot remap MMIO, aborting\n"); 5610 5611 goto iospace_error_exit; 5612 } 5613 5614 return 0; 5615 5616 iospace_error_exit: 5617 return -ENOMEM; 5618 } 5619 5620 static struct isp_operations qla4xxx_isp_ops = { 5621 .iospace_config = qla4xxx_iospace_config, 5622 .pci_config = qla4xxx_pci_config, 5623 .disable_intrs = qla4xxx_disable_intrs, 5624 .enable_intrs = qla4xxx_enable_intrs, 5625 .start_firmware = qla4xxx_start_firmware, 5626 .intr_handler = qla4xxx_intr_handler, 5627 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5628 .reset_chip = qla4xxx_soft_reset, 5629 .reset_firmware = qla4xxx_hw_reset, 5630 .queue_iocb = qla4xxx_queue_iocb, 5631 .complete_iocb = qla4xxx_complete_iocb, 5632 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5633 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5634 .get_sys_info = qla4xxx_get_sys_info, 5635 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5636 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5637 }; 5638 5639 static struct isp_operations qla4_82xx_isp_ops = { 5640 .iospace_config = qla4_8xxx_iospace_config, 5641 .pci_config = qla4_8xxx_pci_config, 5642 .disable_intrs = qla4_82xx_disable_intrs, 5643 .enable_intrs = qla4_82xx_enable_intrs, 5644 .start_firmware = qla4_8xxx_load_risc, 5645 .restart_firmware = qla4_82xx_try_start_fw, 5646 .intr_handler = qla4_82xx_intr_handler, 5647 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5648 .need_reset = qla4_8xxx_need_reset, 5649 .reset_chip = qla4_82xx_isp_reset, 5650 .reset_firmware = qla4_8xxx_stop_firmware, 5651 .queue_iocb = qla4_82xx_queue_iocb, 5652 .complete_iocb = qla4_82xx_complete_iocb, 5653 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5654 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5655 .get_sys_info = qla4_8xxx_get_sys_info, 5656 .rd_reg_direct = qla4_82xx_rd_32, 5657 .wr_reg_direct = qla4_82xx_wr_32, 5658 .rd_reg_indirect = qla4_82xx_md_rd_32, 5659 .wr_reg_indirect = qla4_82xx_md_wr_32, 5660 .idc_lock = qla4_82xx_idc_lock, 5661 .idc_unlock = qla4_82xx_idc_unlock, 5662 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5663 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5664 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5665 }; 5666 5667 static struct isp_operations qla4_83xx_isp_ops = { 5668 .iospace_config = qla4_8xxx_iospace_config, 5669 .pci_config = qla4_8xxx_pci_config, 5670 .disable_intrs = qla4_83xx_disable_intrs, 5671 .enable_intrs = qla4_83xx_enable_intrs, 5672 .start_firmware = qla4_8xxx_load_risc, 5673 .restart_firmware = qla4_83xx_start_firmware, 5674 .intr_handler = qla4_83xx_intr_handler, 5675 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5676 .need_reset = qla4_8xxx_need_reset, 5677 .reset_chip = qla4_83xx_isp_reset, 5678 .reset_firmware = qla4_8xxx_stop_firmware, 5679 .queue_iocb = qla4_83xx_queue_iocb, 5680 .complete_iocb = qla4_83xx_complete_iocb, 5681 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5682 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5683 .get_sys_info = qla4_8xxx_get_sys_info, 5684 .rd_reg_direct = qla4_83xx_rd_reg, 5685 .wr_reg_direct = qla4_83xx_wr_reg, 5686 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5687 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5688 .idc_lock = qla4_83xx_drv_lock, 5689 .idc_unlock = qla4_83xx_drv_unlock, 5690 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5691 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5692 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5693 }; 5694 5695 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5696 { 5697 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5698 } 5699 5700 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5701 { 5702 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5703 } 5704 5705 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5706 { 5707 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5708 } 5709 5710 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5711 { 5712 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5713 } 5714 5715 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5716 { 5717 struct scsi_qla_host *ha = data; 5718 char *str = buf; 5719 int rc; 5720 5721 switch (type) { 5722 case ISCSI_BOOT_ETH_FLAGS: 5723 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5724 break; 5725 case ISCSI_BOOT_ETH_INDEX: 5726 rc = sprintf(str, "0\n"); 5727 break; 5728 case ISCSI_BOOT_ETH_MAC: 5729 rc = sysfs_format_mac(str, ha->my_mac, 5730 MAC_ADDR_LEN); 5731 break; 5732 default: 5733 rc = -ENOSYS; 5734 break; 5735 } 5736 return rc; 5737 } 5738 5739 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5740 { 5741 int rc; 5742 5743 switch (type) { 5744 case ISCSI_BOOT_ETH_FLAGS: 5745 case ISCSI_BOOT_ETH_MAC: 5746 case ISCSI_BOOT_ETH_INDEX: 5747 rc = S_IRUGO; 5748 break; 5749 default: 5750 rc = 0; 5751 break; 5752 } 5753 return rc; 5754 } 5755 5756 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5757 { 5758 struct scsi_qla_host *ha = data; 5759 char *str = buf; 5760 int rc; 5761 5762 switch (type) { 5763 case ISCSI_BOOT_INI_INITIATOR_NAME: 5764 rc = sprintf(str, "%s\n", ha->name_string); 5765 break; 5766 default: 5767 rc = -ENOSYS; 5768 break; 5769 } 5770 return rc; 5771 } 5772 5773 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5774 { 5775 int rc; 5776 5777 switch (type) { 5778 case ISCSI_BOOT_INI_INITIATOR_NAME: 5779 rc = S_IRUGO; 5780 break; 5781 default: 5782 rc = 0; 5783 break; 5784 } 5785 return rc; 5786 } 5787 5788 static ssize_t 5789 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5790 char *buf) 5791 { 5792 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5793 char *str = buf; 5794 int rc; 5795 5796 switch (type) { 5797 case ISCSI_BOOT_TGT_NAME: 5798 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5799 break; 5800 case ISCSI_BOOT_TGT_IP_ADDR: 5801 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5802 rc = sprintf(buf, "%pI4\n", 5803 &boot_conn->dest_ipaddr.ip_address); 5804 else 5805 rc = sprintf(str, "%pI6\n", 5806 &boot_conn->dest_ipaddr.ip_address); 5807 break; 5808 case ISCSI_BOOT_TGT_PORT: 5809 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5810 break; 5811 case ISCSI_BOOT_TGT_CHAP_NAME: 5812 rc = sprintf(str, "%.*s\n", 5813 boot_conn->chap.target_chap_name_length, 5814 (char *)&boot_conn->chap.target_chap_name); 5815 break; 5816 case ISCSI_BOOT_TGT_CHAP_SECRET: 5817 rc = sprintf(str, "%.*s\n", 5818 boot_conn->chap.target_secret_length, 5819 (char *)&boot_conn->chap.target_secret); 5820 break; 5821 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5822 rc = sprintf(str, "%.*s\n", 5823 boot_conn->chap.intr_chap_name_length, 5824 (char *)&boot_conn->chap.intr_chap_name); 5825 break; 5826 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5827 rc = sprintf(str, "%.*s\n", 5828 boot_conn->chap.intr_secret_length, 5829 (char *)&boot_conn->chap.intr_secret); 5830 break; 5831 case ISCSI_BOOT_TGT_FLAGS: 5832 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5833 break; 5834 case ISCSI_BOOT_TGT_NIC_ASSOC: 5835 rc = sprintf(str, "0\n"); 5836 break; 5837 default: 5838 rc = -ENOSYS; 5839 break; 5840 } 5841 return rc; 5842 } 5843 5844 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 5845 { 5846 struct scsi_qla_host *ha = data; 5847 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 5848 5849 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5850 } 5851 5852 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5853 { 5854 struct scsi_qla_host *ha = data; 5855 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5856 5857 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5858 } 5859 5860 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5861 { 5862 int rc; 5863 5864 switch (type) { 5865 case ISCSI_BOOT_TGT_NAME: 5866 case ISCSI_BOOT_TGT_IP_ADDR: 5867 case ISCSI_BOOT_TGT_PORT: 5868 case ISCSI_BOOT_TGT_CHAP_NAME: 5869 case ISCSI_BOOT_TGT_CHAP_SECRET: 5870 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5871 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5872 case ISCSI_BOOT_TGT_NIC_ASSOC: 5873 case ISCSI_BOOT_TGT_FLAGS: 5874 rc = S_IRUGO; 5875 break; 5876 default: 5877 rc = 0; 5878 break; 5879 } 5880 return rc; 5881 } 5882 5883 static void qla4xxx_boot_release(void *data) 5884 { 5885 struct scsi_qla_host *ha = data; 5886 5887 scsi_host_put(ha->host); 5888 } 5889 5890 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5891 { 5892 dma_addr_t buf_dma; 5893 uint32_t addr, pri_addr, sec_addr; 5894 uint32_t offset; 5895 uint16_t func_num; 5896 uint8_t val; 5897 uint8_t *buf = NULL; 5898 size_t size = 13 * sizeof(uint8_t); 5899 int ret = QLA_SUCCESS; 5900 5901 func_num = PCI_FUNC(ha->pdev->devfn); 5902 5903 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5904 __func__, ha->pdev->device, func_num); 5905 5906 if (is_qla40XX(ha)) { 5907 if (func_num == 1) { 5908 addr = NVRAM_PORT0_BOOT_MODE; 5909 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5910 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5911 } else if (func_num == 3) { 5912 addr = NVRAM_PORT1_BOOT_MODE; 5913 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5914 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5915 } else { 5916 ret = QLA_ERROR; 5917 goto exit_boot_info; 5918 } 5919 5920 /* Check Boot Mode */ 5921 val = rd_nvram_byte(ha, addr); 5922 if (!(val & 0x07)) { 5923 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5924 "options : 0x%x\n", __func__, val)); 5925 ret = QLA_ERROR; 5926 goto exit_boot_info; 5927 } 5928 5929 /* get primary valid target index */ 5930 val = rd_nvram_byte(ha, pri_addr); 5931 if (val & BIT_7) 5932 ddb_index[0] = (val & 0x7f); 5933 5934 /* get secondary valid target index */ 5935 val = rd_nvram_byte(ha, sec_addr); 5936 if (val & BIT_7) 5937 ddb_index[1] = (val & 0x7f); 5938 5939 } else if (is_qla80XX(ha)) { 5940 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5941 &buf_dma, GFP_KERNEL); 5942 if (!buf) { 5943 DEBUG2(ql4_printk(KERN_ERR, ha, 5944 "%s: Unable to allocate dma buffer\n", 5945 __func__)); 5946 ret = QLA_ERROR; 5947 goto exit_boot_info; 5948 } 5949 5950 if (ha->port_num == 0) 5951 offset = BOOT_PARAM_OFFSET_PORT0; 5952 else if (ha->port_num == 1) 5953 offset = BOOT_PARAM_OFFSET_PORT1; 5954 else { 5955 ret = QLA_ERROR; 5956 goto exit_boot_info_free; 5957 } 5958 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5959 offset; 5960 if (qla4xxx_get_flash(ha, buf_dma, addr, 5961 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5962 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5963 " failed\n", ha->host_no, __func__)); 5964 ret = QLA_ERROR; 5965 goto exit_boot_info_free; 5966 } 5967 /* Check Boot Mode */ 5968 if (!(buf[1] & 0x07)) { 5969 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5970 " : 0x%x\n", buf[1])); 5971 ret = QLA_ERROR; 5972 goto exit_boot_info_free; 5973 } 5974 5975 /* get primary valid target index */ 5976 if (buf[2] & BIT_7) 5977 ddb_index[0] = buf[2] & 0x7f; 5978 5979 /* get secondary valid target index */ 5980 if (buf[11] & BIT_7) 5981 ddb_index[1] = buf[11] & 0x7f; 5982 } else { 5983 ret = QLA_ERROR; 5984 goto exit_boot_info; 5985 } 5986 5987 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 5988 " target ID %d\n", __func__, ddb_index[0], 5989 ddb_index[1])); 5990 5991 exit_boot_info_free: 5992 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 5993 exit_boot_info: 5994 ha->pri_ddb_idx = ddb_index[0]; 5995 ha->sec_ddb_idx = ddb_index[1]; 5996 return ret; 5997 } 5998 5999 /** 6000 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 6001 * @ha: pointer to adapter structure 6002 * @username: CHAP username to be returned 6003 * @password: CHAP password to be returned 6004 * 6005 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 6006 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 6007 * So from the CHAP cache find the first BIDI CHAP entry and set it 6008 * to the boot record in sysfs. 6009 **/ 6010 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 6011 char *password) 6012 { 6013 int i, ret = -EINVAL; 6014 int max_chap_entries = 0; 6015 struct ql4_chap_table *chap_table; 6016 6017 if (is_qla80XX(ha)) 6018 max_chap_entries = (ha->hw.flt_chap_size / 2) / 6019 sizeof(struct ql4_chap_table); 6020 else 6021 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 6022 6023 if (!ha->chap_list) { 6024 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 6025 return ret; 6026 } 6027 6028 mutex_lock(&ha->chap_sem); 6029 for (i = 0; i < max_chap_entries; i++) { 6030 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 6031 if (chap_table->cookie != 6032 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 6033 continue; 6034 } 6035 6036 if (chap_table->flags & BIT_7) /* local */ 6037 continue; 6038 6039 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6040 continue; 6041 6042 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6043 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6044 ret = 0; 6045 break; 6046 } 6047 mutex_unlock(&ha->chap_sem); 6048 6049 return ret; 6050 } 6051 6052 6053 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6054 struct ql4_boot_session_info *boot_sess, 6055 uint16_t ddb_index) 6056 { 6057 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6058 struct dev_db_entry *fw_ddb_entry; 6059 dma_addr_t fw_ddb_entry_dma; 6060 uint16_t idx; 6061 uint16_t options; 6062 int ret = QLA_SUCCESS; 6063 6064 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6065 &fw_ddb_entry_dma, GFP_KERNEL); 6066 if (!fw_ddb_entry) { 6067 DEBUG2(ql4_printk(KERN_ERR, ha, 6068 "%s: Unable to allocate dma buffer.\n", 6069 __func__)); 6070 ret = QLA_ERROR; 6071 return ret; 6072 } 6073 6074 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6075 fw_ddb_entry_dma, ddb_index)) { 6076 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6077 "index [%d]\n", __func__, ddb_index)); 6078 ret = QLA_ERROR; 6079 goto exit_boot_target; 6080 } 6081 6082 /* Update target name and IP from DDB */ 6083 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6084 min(sizeof(boot_sess->target_name), 6085 sizeof(fw_ddb_entry->iscsi_name))); 6086 6087 options = le16_to_cpu(fw_ddb_entry->options); 6088 if (options & DDB_OPT_IPV6_DEVICE) { 6089 memcpy(&boot_conn->dest_ipaddr.ip_address, 6090 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6091 } else { 6092 boot_conn->dest_ipaddr.ip_type = 0x1; 6093 memcpy(&boot_conn->dest_ipaddr.ip_address, 6094 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6095 } 6096 6097 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6098 6099 /* update chap information */ 6100 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6101 6102 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6103 6104 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6105 6106 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6107 target_chap_name, 6108 (char *)&boot_conn->chap.target_secret, 6109 idx); 6110 if (ret) { 6111 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6112 ret = QLA_ERROR; 6113 goto exit_boot_target; 6114 } 6115 6116 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6117 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6118 } 6119 6120 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6121 6122 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6123 6124 ret = qla4xxx_get_bidi_chap(ha, 6125 (char *)&boot_conn->chap.intr_chap_name, 6126 (char *)&boot_conn->chap.intr_secret); 6127 6128 if (ret) { 6129 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6130 ret = QLA_ERROR; 6131 goto exit_boot_target; 6132 } 6133 6134 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6135 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6136 } 6137 6138 exit_boot_target: 6139 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6140 fw_ddb_entry, fw_ddb_entry_dma); 6141 return ret; 6142 } 6143 6144 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6145 { 6146 uint16_t ddb_index[2]; 6147 int ret = QLA_ERROR; 6148 int rval; 6149 6150 memset(ddb_index, 0, sizeof(ddb_index)); 6151 ddb_index[0] = 0xffff; 6152 ddb_index[1] = 0xffff; 6153 ret = get_fw_boot_info(ha, ddb_index); 6154 if (ret != QLA_SUCCESS) { 6155 DEBUG2(ql4_printk(KERN_INFO, ha, 6156 "%s: No boot target configured.\n", __func__)); 6157 return ret; 6158 } 6159 6160 if (ql4xdisablesysfsboot) 6161 return QLA_SUCCESS; 6162 6163 if (ddb_index[0] == 0xffff) 6164 goto sec_target; 6165 6166 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6167 ddb_index[0]); 6168 if (rval != QLA_SUCCESS) { 6169 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6170 "configured\n", __func__)); 6171 } else 6172 ret = QLA_SUCCESS; 6173 6174 sec_target: 6175 if (ddb_index[1] == 0xffff) 6176 goto exit_get_boot_info; 6177 6178 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6179 ddb_index[1]); 6180 if (rval != QLA_SUCCESS) { 6181 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6182 " configured\n", __func__)); 6183 } else 6184 ret = QLA_SUCCESS; 6185 6186 exit_get_boot_info: 6187 return ret; 6188 } 6189 6190 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6191 { 6192 struct iscsi_boot_kobj *boot_kobj; 6193 6194 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6195 return QLA_ERROR; 6196 6197 if (ql4xdisablesysfsboot) { 6198 ql4_printk(KERN_INFO, ha, 6199 "%s: syfsboot disabled - driver will trigger login " 6200 "and publish session for discovery .\n", __func__); 6201 return QLA_SUCCESS; 6202 } 6203 6204 6205 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6206 if (!ha->boot_kset) 6207 goto kset_free; 6208 6209 if (!scsi_host_get(ha->host)) 6210 goto kset_free; 6211 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6212 qla4xxx_show_boot_tgt_pri_info, 6213 qla4xxx_tgt_get_attr_visibility, 6214 qla4xxx_boot_release); 6215 if (!boot_kobj) 6216 goto put_host; 6217 6218 if (!scsi_host_get(ha->host)) 6219 goto kset_free; 6220 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6221 qla4xxx_show_boot_tgt_sec_info, 6222 qla4xxx_tgt_get_attr_visibility, 6223 qla4xxx_boot_release); 6224 if (!boot_kobj) 6225 goto put_host; 6226 6227 if (!scsi_host_get(ha->host)) 6228 goto kset_free; 6229 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6230 qla4xxx_show_boot_ini_info, 6231 qla4xxx_ini_get_attr_visibility, 6232 qla4xxx_boot_release); 6233 if (!boot_kobj) 6234 goto put_host; 6235 6236 if (!scsi_host_get(ha->host)) 6237 goto kset_free; 6238 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6239 qla4xxx_show_boot_eth_info, 6240 qla4xxx_eth_get_attr_visibility, 6241 qla4xxx_boot_release); 6242 if (!boot_kobj) 6243 goto put_host; 6244 6245 return QLA_SUCCESS; 6246 6247 put_host: 6248 scsi_host_put(ha->host); 6249 kset_free: 6250 iscsi_boot_destroy_kset(ha->boot_kset); 6251 return -ENOMEM; 6252 } 6253 6254 6255 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6256 struct ql4_tuple_ddb *tddb) 6257 { 6258 struct scsi_qla_host *ha; 6259 struct iscsi_cls_session *cls_sess; 6260 struct iscsi_cls_conn *cls_conn; 6261 struct iscsi_session *sess; 6262 struct iscsi_conn *conn; 6263 6264 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6265 ha = ddb_entry->ha; 6266 cls_sess = ddb_entry->sess; 6267 sess = cls_sess->dd_data; 6268 cls_conn = ddb_entry->conn; 6269 conn = cls_conn->dd_data; 6270 6271 tddb->tpgt = sess->tpgt; 6272 tddb->port = conn->persistent_port; 6273 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 6274 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 6275 } 6276 6277 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6278 struct ql4_tuple_ddb *tddb, 6279 uint8_t *flash_isid) 6280 { 6281 uint16_t options = 0; 6282 6283 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6284 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6285 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6286 6287 options = le16_to_cpu(fw_ddb_entry->options); 6288 if (options & DDB_OPT_IPV6_DEVICE) 6289 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6290 else 6291 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6292 6293 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6294 6295 if (flash_isid == NULL) 6296 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6297 sizeof(tddb->isid)); 6298 else 6299 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6300 } 6301 6302 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6303 struct ql4_tuple_ddb *old_tddb, 6304 struct ql4_tuple_ddb *new_tddb, 6305 uint8_t is_isid_compare) 6306 { 6307 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6308 return QLA_ERROR; 6309 6310 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6311 return QLA_ERROR; 6312 6313 if (old_tddb->port != new_tddb->port) 6314 return QLA_ERROR; 6315 6316 /* For multi sessions, driver generates the ISID, so do not compare 6317 * ISID in reset path since it would be a comparison between the 6318 * driver generated ISID and firmware generated ISID. This could 6319 * lead to adding duplicated DDBs in the list as driver generated 6320 * ISID would not match firmware generated ISID. 6321 */ 6322 if (is_isid_compare) { 6323 DEBUG2(ql4_printk(KERN_INFO, ha, 6324 "%s: old ISID [%pmR] New ISID [%pmR]\n", 6325 __func__, old_tddb->isid, new_tddb->isid)); 6326 6327 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6328 sizeof(old_tddb->isid))) 6329 return QLA_ERROR; 6330 } 6331 6332 DEBUG2(ql4_printk(KERN_INFO, ha, 6333 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6334 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6335 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6336 new_tddb->ip_addr, new_tddb->iscsi_name)); 6337 6338 return QLA_SUCCESS; 6339 } 6340 6341 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6342 struct dev_db_entry *fw_ddb_entry, 6343 uint32_t *index) 6344 { 6345 struct ddb_entry *ddb_entry; 6346 struct ql4_tuple_ddb *fw_tddb = NULL; 6347 struct ql4_tuple_ddb *tmp_tddb = NULL; 6348 int idx; 6349 int ret = QLA_ERROR; 6350 6351 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6352 if (!fw_tddb) { 6353 DEBUG2(ql4_printk(KERN_WARNING, ha, 6354 "Memory Allocation failed.\n")); 6355 ret = QLA_SUCCESS; 6356 goto exit_check; 6357 } 6358 6359 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6360 if (!tmp_tddb) { 6361 DEBUG2(ql4_printk(KERN_WARNING, ha, 6362 "Memory Allocation failed.\n")); 6363 ret = QLA_SUCCESS; 6364 goto exit_check; 6365 } 6366 6367 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6368 6369 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6370 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6371 if (ddb_entry == NULL) 6372 continue; 6373 6374 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6375 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6376 ret = QLA_SUCCESS; /* found */ 6377 if (index != NULL) 6378 *index = idx; 6379 goto exit_check; 6380 } 6381 } 6382 6383 exit_check: 6384 if (fw_tddb) 6385 vfree(fw_tddb); 6386 if (tmp_tddb) 6387 vfree(tmp_tddb); 6388 return ret; 6389 } 6390 6391 /** 6392 * qla4xxx_check_existing_isid - check if target with same isid exist 6393 * in target list 6394 * @list_nt: list of target 6395 * @isid: isid to check 6396 * 6397 * This routine return QLA_SUCCESS if target with same isid exist 6398 **/ 6399 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6400 { 6401 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6402 struct dev_db_entry *fw_ddb_entry; 6403 6404 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6405 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6406 6407 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6408 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6409 return QLA_SUCCESS; 6410 } 6411 } 6412 return QLA_ERROR; 6413 } 6414 6415 /** 6416 * qla4xxx_update_isid - compare ddbs and updated isid 6417 * @ha: Pointer to host adapter structure. 6418 * @list_nt: list of nt target 6419 * @fw_ddb_entry: firmware ddb entry 6420 * 6421 * This routine update isid if ddbs have same iqn, same isid and 6422 * different IP addr. 6423 * Return QLA_SUCCESS if isid is updated. 6424 **/ 6425 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6426 struct list_head *list_nt, 6427 struct dev_db_entry *fw_ddb_entry) 6428 { 6429 uint8_t base_value, i; 6430 6431 base_value = fw_ddb_entry->isid[1] & 0x1f; 6432 for (i = 0; i < 8; i++) { 6433 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6434 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6435 break; 6436 } 6437 6438 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6439 return QLA_ERROR; 6440 6441 return QLA_SUCCESS; 6442 } 6443 6444 /** 6445 * qla4xxx_should_update_isid - check if isid need to update 6446 * @ha: Pointer to host adapter structure. 6447 * @old_tddb: ddb tuple 6448 * @new_tddb: ddb tuple 6449 * 6450 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6451 * same isid 6452 **/ 6453 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6454 struct ql4_tuple_ddb *old_tddb, 6455 struct ql4_tuple_ddb *new_tddb) 6456 { 6457 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6458 /* Same ip */ 6459 if (old_tddb->port == new_tddb->port) 6460 return QLA_ERROR; 6461 } 6462 6463 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6464 /* different iqn */ 6465 return QLA_ERROR; 6466 6467 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6468 sizeof(old_tddb->isid))) 6469 /* different isid */ 6470 return QLA_ERROR; 6471 6472 return QLA_SUCCESS; 6473 } 6474 6475 /** 6476 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6477 * @ha: Pointer to host adapter structure. 6478 * @list_nt: list of nt target. 6479 * @fw_ddb_entry: firmware ddb entry. 6480 * 6481 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6482 * duplicate ddb in list_nt. 6483 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6484 * Note: This function also update isid of DDB if required. 6485 **/ 6486 6487 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6488 struct list_head *list_nt, 6489 struct dev_db_entry *fw_ddb_entry) 6490 { 6491 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6492 struct ql4_tuple_ddb *fw_tddb = NULL; 6493 struct ql4_tuple_ddb *tmp_tddb = NULL; 6494 int rval, ret = QLA_ERROR; 6495 6496 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6497 if (!fw_tddb) { 6498 DEBUG2(ql4_printk(KERN_WARNING, ha, 6499 "Memory Allocation failed.\n")); 6500 ret = QLA_SUCCESS; 6501 goto exit_check; 6502 } 6503 6504 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6505 if (!tmp_tddb) { 6506 DEBUG2(ql4_printk(KERN_WARNING, ha, 6507 "Memory Allocation failed.\n")); 6508 ret = QLA_SUCCESS; 6509 goto exit_check; 6510 } 6511 6512 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6513 6514 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6515 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6516 nt_ddb_idx->flash_isid); 6517 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6518 /* found duplicate ddb */ 6519 if (ret == QLA_SUCCESS) 6520 goto exit_check; 6521 } 6522 6523 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6524 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6525 6526 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6527 if (ret == QLA_SUCCESS) { 6528 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6529 if (rval == QLA_SUCCESS) 6530 ret = QLA_ERROR; 6531 else 6532 ret = QLA_SUCCESS; 6533 6534 goto exit_check; 6535 } 6536 } 6537 6538 exit_check: 6539 if (fw_tddb) 6540 vfree(fw_tddb); 6541 if (tmp_tddb) 6542 vfree(tmp_tddb); 6543 return ret; 6544 } 6545 6546 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6547 { 6548 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6549 6550 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6551 list_del_init(&ddb_idx->list); 6552 vfree(ddb_idx); 6553 } 6554 } 6555 6556 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6557 struct dev_db_entry *fw_ddb_entry) 6558 { 6559 struct iscsi_endpoint *ep; 6560 struct sockaddr_in *addr; 6561 struct sockaddr_in6 *addr6; 6562 struct sockaddr *t_addr; 6563 struct sockaddr_storage *dst_addr; 6564 char *ip; 6565 6566 /* TODO: need to destroy on unload iscsi_endpoint*/ 6567 dst_addr = vmalloc(sizeof(*dst_addr)); 6568 if (!dst_addr) 6569 return NULL; 6570 6571 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6572 t_addr = (struct sockaddr *)dst_addr; 6573 t_addr->sa_family = AF_INET6; 6574 addr6 = (struct sockaddr_in6 *)dst_addr; 6575 ip = (char *)&addr6->sin6_addr; 6576 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6577 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6578 6579 } else { 6580 t_addr = (struct sockaddr *)dst_addr; 6581 t_addr->sa_family = AF_INET; 6582 addr = (struct sockaddr_in *)dst_addr; 6583 ip = (char *)&addr->sin_addr; 6584 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6585 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6586 } 6587 6588 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6589 vfree(dst_addr); 6590 return ep; 6591 } 6592 6593 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6594 { 6595 if (ql4xdisablesysfsboot) 6596 return QLA_SUCCESS; 6597 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6598 return QLA_ERROR; 6599 return QLA_SUCCESS; 6600 } 6601 6602 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6603 struct ddb_entry *ddb_entry, 6604 uint16_t idx) 6605 { 6606 uint16_t def_timeout; 6607 6608 ddb_entry->ddb_type = FLASH_DDB; 6609 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6610 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6611 ddb_entry->ha = ha; 6612 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6613 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6614 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6615 6616 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6617 atomic_set(&ddb_entry->relogin_timer, 0); 6618 atomic_set(&ddb_entry->relogin_retry_count, 0); 6619 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6620 ddb_entry->default_relogin_timeout = 6621 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6622 def_timeout : LOGIN_TOV; 6623 ddb_entry->default_time2wait = 6624 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6625 6626 if (ql4xdisablesysfsboot && 6627 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6628 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6629 } 6630 6631 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6632 { 6633 uint32_t idx = 0; 6634 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6635 uint32_t sts[MBOX_REG_COUNT]; 6636 uint32_t ip_state; 6637 unsigned long wtime; 6638 int ret; 6639 6640 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6641 do { 6642 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6643 if (ip_idx[idx] == -1) 6644 continue; 6645 6646 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6647 6648 if (ret == QLA_ERROR) { 6649 ip_idx[idx] = -1; 6650 continue; 6651 } 6652 6653 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6654 6655 DEBUG2(ql4_printk(KERN_INFO, ha, 6656 "Waiting for IP state for idx = %d, state = 0x%x\n", 6657 ip_idx[idx], ip_state)); 6658 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6659 ip_state == IP_ADDRSTATE_INVALID || 6660 ip_state == IP_ADDRSTATE_PREFERRED || 6661 ip_state == IP_ADDRSTATE_DEPRICATED || 6662 ip_state == IP_ADDRSTATE_DISABLING) 6663 ip_idx[idx] = -1; 6664 } 6665 6666 /* Break if all IP states checked */ 6667 if ((ip_idx[0] == -1) && 6668 (ip_idx[1] == -1) && 6669 (ip_idx[2] == -1) && 6670 (ip_idx[3] == -1)) 6671 break; 6672 schedule_timeout_uninterruptible(HZ); 6673 } while (time_after(wtime, jiffies)); 6674 } 6675 6676 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6677 struct dev_db_entry *flash_ddb_entry) 6678 { 6679 uint16_t options = 0; 6680 size_t ip_len = IP_ADDR_LEN; 6681 6682 options = le16_to_cpu(fw_ddb_entry->options); 6683 if (options & DDB_OPT_IPV6_DEVICE) 6684 ip_len = IPv6_ADDR_LEN; 6685 6686 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6687 return QLA_ERROR; 6688 6689 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6690 sizeof(fw_ddb_entry->isid))) 6691 return QLA_ERROR; 6692 6693 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6694 sizeof(fw_ddb_entry->port))) 6695 return QLA_ERROR; 6696 6697 return QLA_SUCCESS; 6698 } 6699 6700 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6701 struct dev_db_entry *fw_ddb_entry, 6702 uint32_t fw_idx, uint32_t *flash_index) 6703 { 6704 struct dev_db_entry *flash_ddb_entry; 6705 dma_addr_t flash_ddb_entry_dma; 6706 uint32_t idx = 0; 6707 int max_ddbs; 6708 int ret = QLA_ERROR, status; 6709 6710 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6711 MAX_DEV_DB_ENTRIES; 6712 6713 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6714 &flash_ddb_entry_dma); 6715 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6716 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6717 goto exit_find_st_idx; 6718 } 6719 6720 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6721 flash_ddb_entry_dma, fw_idx); 6722 if (status == QLA_SUCCESS) { 6723 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6724 if (status == QLA_SUCCESS) { 6725 *flash_index = fw_idx; 6726 ret = QLA_SUCCESS; 6727 goto exit_find_st_idx; 6728 } 6729 } 6730 6731 for (idx = 0; idx < max_ddbs; idx++) { 6732 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6733 flash_ddb_entry_dma, idx); 6734 if (status == QLA_ERROR) 6735 continue; 6736 6737 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6738 if (status == QLA_SUCCESS) { 6739 *flash_index = idx; 6740 ret = QLA_SUCCESS; 6741 goto exit_find_st_idx; 6742 } 6743 } 6744 6745 if (idx == max_ddbs) 6746 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6747 fw_idx); 6748 6749 exit_find_st_idx: 6750 if (flash_ddb_entry) 6751 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6752 flash_ddb_entry_dma); 6753 6754 return ret; 6755 } 6756 6757 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6758 struct list_head *list_st) 6759 { 6760 struct qla_ddb_index *st_ddb_idx; 6761 int max_ddbs; 6762 int fw_idx_size; 6763 struct dev_db_entry *fw_ddb_entry; 6764 dma_addr_t fw_ddb_dma; 6765 int ret; 6766 uint32_t idx = 0, next_idx = 0; 6767 uint32_t state = 0, conn_err = 0; 6768 uint32_t flash_index = -1; 6769 uint16_t conn_id = 0; 6770 6771 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6772 &fw_ddb_dma); 6773 if (fw_ddb_entry == NULL) { 6774 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6775 goto exit_st_list; 6776 } 6777 6778 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6779 MAX_DEV_DB_ENTRIES; 6780 fw_idx_size = sizeof(struct qla_ddb_index); 6781 6782 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6783 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6784 NULL, &next_idx, &state, 6785 &conn_err, NULL, &conn_id); 6786 if (ret == QLA_ERROR) 6787 break; 6788 6789 /* Ignore DDB if invalid state (unassigned) */ 6790 if (state == DDB_DS_UNASSIGNED) 6791 goto continue_next_st; 6792 6793 /* Check if ST, add to the list_st */ 6794 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6795 goto continue_next_st; 6796 6797 st_ddb_idx = vzalloc(fw_idx_size); 6798 if (!st_ddb_idx) 6799 break; 6800 6801 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6802 &flash_index); 6803 if (ret == QLA_ERROR) { 6804 ql4_printk(KERN_ERR, ha, 6805 "No flash entry for ST at idx [%d]\n", idx); 6806 st_ddb_idx->flash_ddb_idx = idx; 6807 } else { 6808 ql4_printk(KERN_INFO, ha, 6809 "ST at idx [%d] is stored at flash [%d]\n", 6810 idx, flash_index); 6811 st_ddb_idx->flash_ddb_idx = flash_index; 6812 } 6813 6814 st_ddb_idx->fw_ddb_idx = idx; 6815 6816 list_add_tail(&st_ddb_idx->list, list_st); 6817 continue_next_st: 6818 if (next_idx == 0) 6819 break; 6820 } 6821 6822 exit_st_list: 6823 if (fw_ddb_entry) 6824 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6825 } 6826 6827 /** 6828 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6829 * @ha: pointer to adapter structure 6830 * @list_ddb: List from which failed ddb to be removed 6831 * 6832 * Iterate over the list of DDBs and find and remove DDBs that are either in 6833 * no connection active state or failed state 6834 **/ 6835 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6836 struct list_head *list_ddb) 6837 { 6838 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6839 uint32_t next_idx = 0; 6840 uint32_t state = 0, conn_err = 0; 6841 int ret; 6842 6843 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6844 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6845 NULL, 0, NULL, &next_idx, &state, 6846 &conn_err, NULL, NULL); 6847 if (ret == QLA_ERROR) 6848 continue; 6849 6850 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6851 state == DDB_DS_SESSION_FAILED) { 6852 list_del_init(&ddb_idx->list); 6853 vfree(ddb_idx); 6854 } 6855 } 6856 } 6857 6858 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6859 struct ddb_entry *ddb_entry, 6860 struct dev_db_entry *fw_ddb_entry) 6861 { 6862 struct iscsi_cls_session *cls_sess; 6863 struct iscsi_session *sess; 6864 uint32_t max_ddbs = 0; 6865 uint16_t ddb_link = -1; 6866 6867 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6868 MAX_DEV_DB_ENTRIES; 6869 6870 cls_sess = ddb_entry->sess; 6871 sess = cls_sess->dd_data; 6872 6873 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6874 if (ddb_link < max_ddbs) 6875 sess->discovery_parent_idx = ddb_link; 6876 else 6877 sess->discovery_parent_idx = DDB_NO_LINK; 6878 } 6879 6880 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6881 struct dev_db_entry *fw_ddb_entry, 6882 int is_reset, uint16_t idx) 6883 { 6884 struct iscsi_cls_session *cls_sess; 6885 struct iscsi_session *sess; 6886 struct iscsi_cls_conn *cls_conn; 6887 struct iscsi_endpoint *ep; 6888 uint16_t cmds_max = 32; 6889 uint16_t conn_id = 0; 6890 uint32_t initial_cmdsn = 0; 6891 int ret = QLA_SUCCESS; 6892 6893 struct ddb_entry *ddb_entry = NULL; 6894 6895 /* Create session object, with INVALID_ENTRY, 6896 * the targer_id would get set when we issue the login 6897 */ 6898 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6899 cmds_max, sizeof(struct ddb_entry), 6900 sizeof(struct ql4_task_data), 6901 initial_cmdsn, INVALID_ENTRY); 6902 if (!cls_sess) { 6903 ret = QLA_ERROR; 6904 goto exit_setup; 6905 } 6906 6907 /* 6908 * so calling module_put function to decrement the 6909 * reference count. 6910 **/ 6911 module_put(qla4xxx_iscsi_transport.owner); 6912 sess = cls_sess->dd_data; 6913 ddb_entry = sess->dd_data; 6914 ddb_entry->sess = cls_sess; 6915 6916 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6917 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6918 sizeof(struct dev_db_entry)); 6919 6920 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6921 6922 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6923 6924 if (!cls_conn) { 6925 ret = QLA_ERROR; 6926 goto exit_setup; 6927 } 6928 6929 ddb_entry->conn = cls_conn; 6930 6931 /* Setup ep, for displaying attributes in sysfs */ 6932 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6933 if (ep) { 6934 ep->conn = cls_conn; 6935 cls_conn->ep = ep; 6936 } else { 6937 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6938 ret = QLA_ERROR; 6939 goto exit_setup; 6940 } 6941 6942 /* Update sess/conn params */ 6943 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6944 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6945 6946 if (is_reset == RESET_ADAPTER) { 6947 iscsi_block_session(cls_sess); 6948 /* Use the relogin path to discover new devices 6949 * by short-circuting the logic of setting 6950 * timer to relogin - instead set the flags 6951 * to initiate login right away. 6952 */ 6953 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6954 set_bit(DF_RELOGIN, &ddb_entry->flags); 6955 } 6956 6957 exit_setup: 6958 return ret; 6959 } 6960 6961 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6962 struct list_head *list_ddb, 6963 struct dev_db_entry *fw_ddb_entry) 6964 { 6965 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6966 uint16_t ddb_link; 6967 6968 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6969 6970 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6971 if (ddb_idx->fw_ddb_idx == ddb_link) { 6972 DEBUG2(ql4_printk(KERN_INFO, ha, 6973 "Updating NT parent idx from [%d] to [%d]\n", 6974 ddb_link, ddb_idx->flash_ddb_idx)); 6975 fw_ddb_entry->ddb_link = 6976 cpu_to_le16(ddb_idx->flash_ddb_idx); 6977 return; 6978 } 6979 } 6980 } 6981 6982 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 6983 struct list_head *list_nt, 6984 struct list_head *list_st, 6985 int is_reset) 6986 { 6987 struct dev_db_entry *fw_ddb_entry; 6988 struct ddb_entry *ddb_entry = NULL; 6989 dma_addr_t fw_ddb_dma; 6990 int max_ddbs; 6991 int fw_idx_size; 6992 int ret; 6993 uint32_t idx = 0, next_idx = 0; 6994 uint32_t state = 0, conn_err = 0; 6995 uint32_t ddb_idx = -1; 6996 uint16_t conn_id = 0; 6997 uint16_t ddb_link = -1; 6998 struct qla_ddb_index *nt_ddb_idx; 6999 7000 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7001 &fw_ddb_dma); 7002 if (fw_ddb_entry == NULL) { 7003 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7004 goto exit_nt_list; 7005 } 7006 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7007 MAX_DEV_DB_ENTRIES; 7008 fw_idx_size = sizeof(struct qla_ddb_index); 7009 7010 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7011 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7012 NULL, &next_idx, &state, 7013 &conn_err, NULL, &conn_id); 7014 if (ret == QLA_ERROR) 7015 break; 7016 7017 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 7018 goto continue_next_nt; 7019 7020 /* Check if NT, then add to list it */ 7021 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 7022 goto continue_next_nt; 7023 7024 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 7025 if (ddb_link < max_ddbs) 7026 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 7027 7028 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 7029 state == DDB_DS_SESSION_FAILED) && 7030 (is_reset == INIT_ADAPTER)) 7031 goto continue_next_nt; 7032 7033 DEBUG2(ql4_printk(KERN_INFO, ha, 7034 "Adding DDB to session = 0x%x\n", idx)); 7035 7036 if (is_reset == INIT_ADAPTER) { 7037 nt_ddb_idx = vmalloc(fw_idx_size); 7038 if (!nt_ddb_idx) 7039 break; 7040 7041 nt_ddb_idx->fw_ddb_idx = idx; 7042 7043 /* Copy original isid as it may get updated in function 7044 * qla4xxx_update_isid(). We need original isid in 7045 * function qla4xxx_compare_tuple_ddb to find duplicate 7046 * target */ 7047 memcpy(&nt_ddb_idx->flash_isid[0], 7048 &fw_ddb_entry->isid[0], 7049 sizeof(nt_ddb_idx->flash_isid)); 7050 7051 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7052 fw_ddb_entry); 7053 if (ret == QLA_SUCCESS) { 7054 /* free nt_ddb_idx and do not add to list_nt */ 7055 vfree(nt_ddb_idx); 7056 goto continue_next_nt; 7057 } 7058 7059 /* Copy updated isid */ 7060 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7061 sizeof(struct dev_db_entry)); 7062 7063 list_add_tail(&nt_ddb_idx->list, list_nt); 7064 } else if (is_reset == RESET_ADAPTER) { 7065 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7066 &ddb_idx); 7067 if (ret == QLA_SUCCESS) { 7068 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7069 ddb_idx); 7070 if (ddb_entry != NULL) 7071 qla4xxx_update_sess_disc_idx(ha, 7072 ddb_entry, 7073 fw_ddb_entry); 7074 goto continue_next_nt; 7075 } 7076 } 7077 7078 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7079 if (ret == QLA_ERROR) 7080 goto exit_nt_list; 7081 7082 continue_next_nt: 7083 if (next_idx == 0) 7084 break; 7085 } 7086 7087 exit_nt_list: 7088 if (fw_ddb_entry) 7089 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7090 } 7091 7092 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7093 struct list_head *list_nt, 7094 uint16_t target_id) 7095 { 7096 struct dev_db_entry *fw_ddb_entry; 7097 dma_addr_t fw_ddb_dma; 7098 int max_ddbs; 7099 int fw_idx_size; 7100 int ret; 7101 uint32_t idx = 0, next_idx = 0; 7102 uint32_t state = 0, conn_err = 0; 7103 uint16_t conn_id = 0; 7104 struct qla_ddb_index *nt_ddb_idx; 7105 7106 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7107 &fw_ddb_dma); 7108 if (fw_ddb_entry == NULL) { 7109 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7110 goto exit_new_nt_list; 7111 } 7112 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7113 MAX_DEV_DB_ENTRIES; 7114 fw_idx_size = sizeof(struct qla_ddb_index); 7115 7116 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7117 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7118 NULL, &next_idx, &state, 7119 &conn_err, NULL, &conn_id); 7120 if (ret == QLA_ERROR) 7121 break; 7122 7123 /* Check if NT, then add it to list */ 7124 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7125 goto continue_next_new_nt; 7126 7127 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7128 goto continue_next_new_nt; 7129 7130 DEBUG2(ql4_printk(KERN_INFO, ha, 7131 "Adding DDB to session = 0x%x\n", idx)); 7132 7133 nt_ddb_idx = vmalloc(fw_idx_size); 7134 if (!nt_ddb_idx) 7135 break; 7136 7137 nt_ddb_idx->fw_ddb_idx = idx; 7138 7139 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7140 if (ret == QLA_SUCCESS) { 7141 /* free nt_ddb_idx and do not add to list_nt */ 7142 vfree(nt_ddb_idx); 7143 goto continue_next_new_nt; 7144 } 7145 7146 if (target_id < max_ddbs) 7147 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7148 7149 list_add_tail(&nt_ddb_idx->list, list_nt); 7150 7151 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7152 idx); 7153 if (ret == QLA_ERROR) 7154 goto exit_new_nt_list; 7155 7156 continue_next_new_nt: 7157 if (next_idx == 0) 7158 break; 7159 } 7160 7161 exit_new_nt_list: 7162 if (fw_ddb_entry) 7163 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7164 } 7165 7166 /** 7167 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7168 * @dev: dev associated with the sysfs entry 7169 * @data: pointer to flashnode session object 7170 * 7171 * Returns: 7172 * 1: if flashnode entry is non-persistent 7173 * 0: if flashnode entry is persistent 7174 **/ 7175 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) 7176 { 7177 struct iscsi_bus_flash_session *fnode_sess; 7178 7179 if (!iscsi_flashnode_bus_match(dev, NULL)) 7180 return 0; 7181 7182 fnode_sess = iscsi_dev_to_flash_session(dev); 7183 7184 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7185 } 7186 7187 /** 7188 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7189 * @ha: pointer to host 7190 * @fw_ddb_entry: flash ddb data 7191 * @idx: target index 7192 * @user: if set then this call is made from userland else from kernel 7193 * 7194 * Returns: 7195 * On sucess: QLA_SUCCESS 7196 * On failure: QLA_ERROR 7197 * 7198 * This create separate sysfs entries for session and connection attributes of 7199 * the given fw ddb entry. 7200 * If this is invoked as a result of a userspace call then the entry is marked 7201 * as nonpersistent using flash_state field. 7202 **/ 7203 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7204 struct dev_db_entry *fw_ddb_entry, 7205 uint16_t *idx, int user) 7206 { 7207 struct iscsi_bus_flash_session *fnode_sess = NULL; 7208 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7209 int rc = QLA_ERROR; 7210 7211 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7212 &qla4xxx_iscsi_transport, 0); 7213 if (!fnode_sess) { 7214 ql4_printk(KERN_ERR, ha, 7215 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7216 __func__, *idx, ha->host_no); 7217 goto exit_tgt_create; 7218 } 7219 7220 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7221 &qla4xxx_iscsi_transport, 0); 7222 if (!fnode_conn) { 7223 ql4_printk(KERN_ERR, ha, 7224 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7225 __func__, *idx, ha->host_no); 7226 goto free_sess; 7227 } 7228 7229 if (user) { 7230 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7231 } else { 7232 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7233 7234 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7235 fnode_sess->is_boot_target = 1; 7236 else 7237 fnode_sess->is_boot_target = 0; 7238 } 7239 7240 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7241 fw_ddb_entry); 7242 7243 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7244 __func__, fnode_sess->dev.kobj.name); 7245 7246 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7247 __func__, fnode_conn->dev.kobj.name); 7248 7249 return QLA_SUCCESS; 7250 7251 free_sess: 7252 iscsi_destroy_flashnode_sess(fnode_sess); 7253 7254 exit_tgt_create: 7255 return QLA_ERROR; 7256 } 7257 7258 /** 7259 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7260 * @shost: pointer to host 7261 * @buf: type of ddb entry (ipv4/ipv6) 7262 * @len: length of buf 7263 * 7264 * This creates new ddb entry in the flash by finding first free index and 7265 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7266 **/ 7267 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7268 int len) 7269 { 7270 struct scsi_qla_host *ha = to_qla_host(shost); 7271 struct dev_db_entry *fw_ddb_entry = NULL; 7272 dma_addr_t fw_ddb_entry_dma; 7273 struct device *dev; 7274 uint16_t idx = 0; 7275 uint16_t max_ddbs = 0; 7276 uint32_t options = 0; 7277 uint32_t rval = QLA_ERROR; 7278 7279 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7280 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7281 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7282 __func__)); 7283 goto exit_ddb_add; 7284 } 7285 7286 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7287 MAX_DEV_DB_ENTRIES; 7288 7289 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7290 &fw_ddb_entry_dma, GFP_KERNEL); 7291 if (!fw_ddb_entry) { 7292 DEBUG2(ql4_printk(KERN_ERR, ha, 7293 "%s: Unable to allocate dma buffer\n", 7294 __func__)); 7295 goto exit_ddb_add; 7296 } 7297 7298 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7299 qla4xxx_sysfs_ddb_is_non_persistent); 7300 if (dev) { 7301 ql4_printk(KERN_ERR, ha, 7302 "%s: A non-persistent entry %s found\n", 7303 __func__, dev->kobj.name); 7304 put_device(dev); 7305 goto exit_ddb_add; 7306 } 7307 7308 /* Index 0 and 1 are reserved for boot target entries */ 7309 for (idx = 2; idx < max_ddbs; idx++) { 7310 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7311 fw_ddb_entry_dma, idx)) 7312 break; 7313 } 7314 7315 if (idx == max_ddbs) 7316 goto exit_ddb_add; 7317 7318 if (!strncasecmp("ipv6", buf, 4)) 7319 options |= IPV6_DEFAULT_DDB_ENTRY; 7320 7321 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7322 if (rval == QLA_ERROR) 7323 goto exit_ddb_add; 7324 7325 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7326 7327 exit_ddb_add: 7328 if (fw_ddb_entry) 7329 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7330 fw_ddb_entry, fw_ddb_entry_dma); 7331 if (rval == QLA_SUCCESS) 7332 return idx; 7333 else 7334 return -EIO; 7335 } 7336 7337 /** 7338 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7339 * @fnode_sess: pointer to session attrs of flash ddb entry 7340 * @fnode_conn: pointer to connection attrs of flash ddb entry 7341 * 7342 * This writes the contents of target ddb buffer to Flash with a valid cookie 7343 * value in order to make the ddb entry persistent. 7344 **/ 7345 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7346 struct iscsi_bus_flash_conn *fnode_conn) 7347 { 7348 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7349 struct scsi_qla_host *ha = to_qla_host(shost); 7350 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7351 struct dev_db_entry *fw_ddb_entry = NULL; 7352 dma_addr_t fw_ddb_entry_dma; 7353 uint32_t options = 0; 7354 int rval = 0; 7355 7356 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7357 &fw_ddb_entry_dma, GFP_KERNEL); 7358 if (!fw_ddb_entry) { 7359 DEBUG2(ql4_printk(KERN_ERR, ha, 7360 "%s: Unable to allocate dma buffer\n", 7361 __func__)); 7362 rval = -ENOMEM; 7363 goto exit_ddb_apply; 7364 } 7365 7366 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7367 options |= IPV6_DEFAULT_DDB_ENTRY; 7368 7369 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7370 if (rval == QLA_ERROR) 7371 goto exit_ddb_apply; 7372 7373 dev_db_start_offset += (fnode_sess->target_id * 7374 sizeof(*fw_ddb_entry)); 7375 7376 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7377 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7378 7379 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7380 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7381 7382 if (rval == QLA_SUCCESS) { 7383 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7384 ql4_printk(KERN_INFO, ha, 7385 "%s: flash node %u of host %lu written to flash\n", 7386 __func__, fnode_sess->target_id, ha->host_no); 7387 } else { 7388 rval = -EIO; 7389 ql4_printk(KERN_ERR, ha, 7390 "%s: Error while writing flash node %u of host %lu to flash\n", 7391 __func__, fnode_sess->target_id, ha->host_no); 7392 } 7393 7394 exit_ddb_apply: 7395 if (fw_ddb_entry) 7396 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7397 fw_ddb_entry, fw_ddb_entry_dma); 7398 return rval; 7399 } 7400 7401 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7402 struct dev_db_entry *fw_ddb_entry, 7403 uint16_t idx) 7404 { 7405 struct dev_db_entry *ddb_entry = NULL; 7406 dma_addr_t ddb_entry_dma; 7407 unsigned long wtime; 7408 uint32_t mbx_sts = 0; 7409 uint32_t state = 0, conn_err = 0; 7410 uint16_t tmo = 0; 7411 int ret = 0; 7412 7413 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7414 &ddb_entry_dma, GFP_KERNEL); 7415 if (!ddb_entry) { 7416 DEBUG2(ql4_printk(KERN_ERR, ha, 7417 "%s: Unable to allocate dma buffer\n", 7418 __func__)); 7419 return QLA_ERROR; 7420 } 7421 7422 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7423 7424 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7425 if (ret != QLA_SUCCESS) { 7426 DEBUG2(ql4_printk(KERN_ERR, ha, 7427 "%s: Unable to set ddb entry for index %d\n", 7428 __func__, idx)); 7429 goto exit_ddb_conn_open; 7430 } 7431 7432 qla4xxx_conn_open(ha, idx); 7433 7434 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7435 tmo = ((ha->def_timeout > LOGIN_TOV) && 7436 (ha->def_timeout < LOGIN_TOV * 10) ? 7437 ha->def_timeout : LOGIN_TOV); 7438 7439 DEBUG2(ql4_printk(KERN_INFO, ha, 7440 "Default time to wait for login to ddb %d\n", tmo)); 7441 7442 wtime = jiffies + (HZ * tmo); 7443 do { 7444 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7445 NULL, &state, &conn_err, NULL, 7446 NULL); 7447 if (ret == QLA_ERROR) 7448 continue; 7449 7450 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7451 state == DDB_DS_SESSION_FAILED) 7452 break; 7453 7454 schedule_timeout_uninterruptible(HZ / 10); 7455 } while (time_after(wtime, jiffies)); 7456 7457 exit_ddb_conn_open: 7458 if (ddb_entry) 7459 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7460 ddb_entry, ddb_entry_dma); 7461 return ret; 7462 } 7463 7464 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7465 struct dev_db_entry *fw_ddb_entry, 7466 uint16_t target_id) 7467 { 7468 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7469 struct list_head list_nt; 7470 uint16_t ddb_index; 7471 int ret = 0; 7472 7473 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7474 ql4_printk(KERN_WARNING, ha, 7475 "%s: A discovery already in progress!\n", __func__); 7476 return QLA_ERROR; 7477 } 7478 7479 INIT_LIST_HEAD(&list_nt); 7480 7481 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7482 7483 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7484 if (ret == QLA_ERROR) 7485 goto exit_login_st_clr_bit; 7486 7487 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7488 if (ret == QLA_ERROR) 7489 goto exit_login_st; 7490 7491 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7492 7493 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7494 list_del_init(&ddb_idx->list); 7495 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7496 vfree(ddb_idx); 7497 } 7498 7499 exit_login_st: 7500 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7501 ql4_printk(KERN_ERR, ha, 7502 "Unable to clear DDB index = 0x%x\n", ddb_index); 7503 } 7504 7505 clear_bit(ddb_index, ha->ddb_idx_map); 7506 7507 exit_login_st_clr_bit: 7508 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7509 return ret; 7510 } 7511 7512 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7513 struct dev_db_entry *fw_ddb_entry, 7514 uint16_t idx) 7515 { 7516 int ret = QLA_ERROR; 7517 7518 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7519 if (ret != QLA_SUCCESS) 7520 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7521 idx); 7522 else 7523 ret = -EPERM; 7524 7525 return ret; 7526 } 7527 7528 /** 7529 * qla4xxx_sysfs_ddb_login - Login to the specified target 7530 * @fnode_sess: pointer to session attrs of flash ddb entry 7531 * @fnode_conn: pointer to connection attrs of flash ddb entry 7532 * 7533 * This logs in to the specified target 7534 **/ 7535 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7536 struct iscsi_bus_flash_conn *fnode_conn) 7537 { 7538 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7539 struct scsi_qla_host *ha = to_qla_host(shost); 7540 struct dev_db_entry *fw_ddb_entry = NULL; 7541 dma_addr_t fw_ddb_entry_dma; 7542 uint32_t options = 0; 7543 int ret = 0; 7544 7545 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7546 ql4_printk(KERN_ERR, ha, 7547 "%s: Target info is not persistent\n", __func__); 7548 ret = -EIO; 7549 goto exit_ddb_login; 7550 } 7551 7552 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7553 &fw_ddb_entry_dma, GFP_KERNEL); 7554 if (!fw_ddb_entry) { 7555 DEBUG2(ql4_printk(KERN_ERR, ha, 7556 "%s: Unable to allocate dma buffer\n", 7557 __func__)); 7558 ret = -ENOMEM; 7559 goto exit_ddb_login; 7560 } 7561 7562 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7563 options |= IPV6_DEFAULT_DDB_ENTRY; 7564 7565 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7566 if (ret == QLA_ERROR) 7567 goto exit_ddb_login; 7568 7569 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7570 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7571 7572 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7573 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7574 fnode_sess->target_id); 7575 else 7576 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7577 fnode_sess->target_id); 7578 7579 if (ret > 0) 7580 ret = -EIO; 7581 7582 exit_ddb_login: 7583 if (fw_ddb_entry) 7584 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7585 fw_ddb_entry, fw_ddb_entry_dma); 7586 return ret; 7587 } 7588 7589 /** 7590 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7591 * @cls_sess: pointer to session to be logged out 7592 * 7593 * This performs session log out from the specified target 7594 **/ 7595 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7596 { 7597 struct iscsi_session *sess; 7598 struct ddb_entry *ddb_entry = NULL; 7599 struct scsi_qla_host *ha; 7600 struct dev_db_entry *fw_ddb_entry = NULL; 7601 dma_addr_t fw_ddb_entry_dma; 7602 unsigned long flags; 7603 unsigned long wtime; 7604 uint32_t ddb_state; 7605 int options; 7606 int ret = 0; 7607 7608 sess = cls_sess->dd_data; 7609 ddb_entry = sess->dd_data; 7610 ha = ddb_entry->ha; 7611 7612 if (ddb_entry->ddb_type != FLASH_DDB) { 7613 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7614 __func__); 7615 ret = -ENXIO; 7616 goto exit_ddb_logout; 7617 } 7618 7619 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7620 ql4_printk(KERN_ERR, ha, 7621 "%s: Logout from boot target entry is not permitted.\n", 7622 __func__); 7623 ret = -EPERM; 7624 goto exit_ddb_logout; 7625 } 7626 7627 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7628 &fw_ddb_entry_dma, GFP_KERNEL); 7629 if (!fw_ddb_entry) { 7630 ql4_printk(KERN_ERR, ha, 7631 "%s: Unable to allocate dma buffer\n", __func__); 7632 ret = -ENOMEM; 7633 goto exit_ddb_logout; 7634 } 7635 7636 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7637 goto ddb_logout_init; 7638 7639 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7640 fw_ddb_entry, fw_ddb_entry_dma, 7641 NULL, NULL, &ddb_state, NULL, 7642 NULL, NULL); 7643 if (ret == QLA_ERROR) 7644 goto ddb_logout_init; 7645 7646 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7647 goto ddb_logout_init; 7648 7649 /* wait until next relogin is triggered using DF_RELOGIN and 7650 * clear DF_RELOGIN to avoid invocation of further relogin 7651 */ 7652 wtime = jiffies + (HZ * RELOGIN_TOV); 7653 do { 7654 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7655 goto ddb_logout_init; 7656 7657 schedule_timeout_uninterruptible(HZ); 7658 } while ((time_after(wtime, jiffies))); 7659 7660 ddb_logout_init: 7661 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7662 atomic_set(&ddb_entry->relogin_timer, 0); 7663 7664 options = LOGOUT_OPTION_CLOSE_SESSION; 7665 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7666 7667 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7668 wtime = jiffies + (HZ * LOGOUT_TOV); 7669 do { 7670 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7671 fw_ddb_entry, fw_ddb_entry_dma, 7672 NULL, NULL, &ddb_state, NULL, 7673 NULL, NULL); 7674 if (ret == QLA_ERROR) 7675 goto ddb_logout_clr_sess; 7676 7677 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7678 (ddb_state == DDB_DS_SESSION_FAILED)) 7679 goto ddb_logout_clr_sess; 7680 7681 schedule_timeout_uninterruptible(HZ); 7682 } while ((time_after(wtime, jiffies))); 7683 7684 ddb_logout_clr_sess: 7685 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7686 /* 7687 * we have decremented the reference count of the driver 7688 * when we setup the session to have the driver unload 7689 * to be seamless without actually destroying the 7690 * session 7691 **/ 7692 try_module_get(qla4xxx_iscsi_transport.owner); 7693 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7694 7695 spin_lock_irqsave(&ha->hardware_lock, flags); 7696 qla4xxx_free_ddb(ha, ddb_entry); 7697 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7698 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7699 7700 iscsi_session_teardown(ddb_entry->sess); 7701 7702 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7703 ret = QLA_SUCCESS; 7704 7705 exit_ddb_logout: 7706 if (fw_ddb_entry) 7707 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7708 fw_ddb_entry, fw_ddb_entry_dma); 7709 return ret; 7710 } 7711 7712 /** 7713 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7714 * @fnode_sess: pointer to session attrs of flash ddb entry 7715 * @fnode_conn: pointer to connection attrs of flash ddb entry 7716 * 7717 * This performs log out from the specified target 7718 **/ 7719 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7720 struct iscsi_bus_flash_conn *fnode_conn) 7721 { 7722 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7723 struct scsi_qla_host *ha = to_qla_host(shost); 7724 struct ql4_tuple_ddb *flash_tddb = NULL; 7725 struct ql4_tuple_ddb *tmp_tddb = NULL; 7726 struct dev_db_entry *fw_ddb_entry = NULL; 7727 struct ddb_entry *ddb_entry = NULL; 7728 dma_addr_t fw_ddb_dma; 7729 uint32_t next_idx = 0; 7730 uint32_t state = 0, conn_err = 0; 7731 uint16_t conn_id = 0; 7732 int idx, index; 7733 int status, ret = 0; 7734 7735 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7736 &fw_ddb_dma); 7737 if (fw_ddb_entry == NULL) { 7738 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7739 ret = -ENOMEM; 7740 goto exit_ddb_logout; 7741 } 7742 7743 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7744 if (!flash_tddb) { 7745 ql4_printk(KERN_WARNING, ha, 7746 "%s:Memory Allocation failed.\n", __func__); 7747 ret = -ENOMEM; 7748 goto exit_ddb_logout; 7749 } 7750 7751 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7752 if (!tmp_tddb) { 7753 ql4_printk(KERN_WARNING, ha, 7754 "%s:Memory Allocation failed.\n", __func__); 7755 ret = -ENOMEM; 7756 goto exit_ddb_logout; 7757 } 7758 7759 if (!fnode_sess->targetname) { 7760 ql4_printk(KERN_ERR, ha, 7761 "%s:Cannot logout from SendTarget entry\n", 7762 __func__); 7763 ret = -EPERM; 7764 goto exit_ddb_logout; 7765 } 7766 7767 if (fnode_sess->is_boot_target) { 7768 ql4_printk(KERN_ERR, ha, 7769 "%s: Logout from boot target entry is not permitted.\n", 7770 __func__); 7771 ret = -EPERM; 7772 goto exit_ddb_logout; 7773 } 7774 7775 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7776 ISCSI_NAME_SIZE); 7777 7778 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7779 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7780 else 7781 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7782 7783 flash_tddb->tpgt = fnode_sess->tpgt; 7784 flash_tddb->port = fnode_conn->port; 7785 7786 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7787 7788 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7789 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7790 if (ddb_entry == NULL) 7791 continue; 7792 7793 if (ddb_entry->ddb_type != FLASH_DDB) 7794 continue; 7795 7796 index = ddb_entry->sess->target_id; 7797 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7798 fw_ddb_dma, NULL, &next_idx, 7799 &state, &conn_err, NULL, 7800 &conn_id); 7801 if (status == QLA_ERROR) { 7802 ret = -ENOMEM; 7803 break; 7804 } 7805 7806 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7807 7808 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7809 true); 7810 if (status == QLA_SUCCESS) { 7811 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7812 break; 7813 } 7814 } 7815 7816 if (idx == MAX_DDB_ENTRIES) 7817 ret = -ESRCH; 7818 7819 exit_ddb_logout: 7820 if (flash_tddb) 7821 vfree(flash_tddb); 7822 if (tmp_tddb) 7823 vfree(tmp_tddb); 7824 if (fw_ddb_entry) 7825 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7826 7827 return ret; 7828 } 7829 7830 static int 7831 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7832 int param, char *buf) 7833 { 7834 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7835 struct scsi_qla_host *ha = to_qla_host(shost); 7836 struct iscsi_bus_flash_conn *fnode_conn; 7837 struct ql4_chap_table chap_tbl; 7838 struct device *dev; 7839 int parent_type; 7840 int rc = 0; 7841 7842 dev = iscsi_find_flashnode_conn(fnode_sess); 7843 if (!dev) 7844 return -EIO; 7845 7846 fnode_conn = iscsi_dev_to_flash_conn(dev); 7847 7848 switch (param) { 7849 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7850 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7851 break; 7852 case ISCSI_FLASHNODE_PORTAL_TYPE: 7853 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7854 break; 7855 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7856 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7857 break; 7858 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7859 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7860 break; 7861 case ISCSI_FLASHNODE_ENTRY_EN: 7862 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7863 break; 7864 case ISCSI_FLASHNODE_HDR_DGST_EN: 7865 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7866 break; 7867 case ISCSI_FLASHNODE_DATA_DGST_EN: 7868 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7869 break; 7870 case ISCSI_FLASHNODE_IMM_DATA_EN: 7871 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7872 break; 7873 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7874 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7875 break; 7876 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7877 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7878 break; 7879 case ISCSI_FLASHNODE_PDU_INORDER: 7880 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7881 break; 7882 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7883 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7884 break; 7885 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7886 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7887 break; 7888 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7889 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7890 break; 7891 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7892 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7893 break; 7894 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7895 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7896 break; 7897 case ISCSI_FLASHNODE_ERL: 7898 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7899 break; 7900 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7901 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7902 break; 7903 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7904 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7905 break; 7906 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7907 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7908 break; 7909 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7910 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7911 break; 7912 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7913 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7914 break; 7915 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7916 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7917 break; 7918 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7919 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7920 break; 7921 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7922 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7923 break; 7924 case ISCSI_FLASHNODE_FIRST_BURST: 7925 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7926 break; 7927 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7928 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7929 break; 7930 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7931 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7932 break; 7933 case ISCSI_FLASHNODE_MAX_R2T: 7934 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7935 break; 7936 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7937 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7938 break; 7939 case ISCSI_FLASHNODE_ISID: 7940 rc = sprintf(buf, "%pm\n", fnode_sess->isid); 7941 break; 7942 case ISCSI_FLASHNODE_TSID: 7943 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7944 break; 7945 case ISCSI_FLASHNODE_PORT: 7946 rc = sprintf(buf, "%d\n", fnode_conn->port); 7947 break; 7948 case ISCSI_FLASHNODE_MAX_BURST: 7949 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7950 break; 7951 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7952 rc = sprintf(buf, "%u\n", 7953 fnode_sess->default_taskmgmt_timeout); 7954 break; 7955 case ISCSI_FLASHNODE_IPADDR: 7956 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7957 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7958 else 7959 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7960 break; 7961 case ISCSI_FLASHNODE_ALIAS: 7962 if (fnode_sess->targetalias) 7963 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7964 else 7965 rc = sprintf(buf, "\n"); 7966 break; 7967 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7968 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7969 rc = sprintf(buf, "%pI6\n", 7970 fnode_conn->redirect_ipaddr); 7971 else 7972 rc = sprintf(buf, "%pI4\n", 7973 fnode_conn->redirect_ipaddr); 7974 break; 7975 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7976 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7977 break; 7978 case ISCSI_FLASHNODE_LOCAL_PORT: 7979 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 7980 break; 7981 case ISCSI_FLASHNODE_IPV4_TOS: 7982 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 7983 break; 7984 case ISCSI_FLASHNODE_IPV6_TC: 7985 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7986 rc = sprintf(buf, "%u\n", 7987 fnode_conn->ipv6_traffic_class); 7988 else 7989 rc = sprintf(buf, "\n"); 7990 break; 7991 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 7992 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 7993 break; 7994 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 7995 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7996 rc = sprintf(buf, "%pI6\n", 7997 fnode_conn->link_local_ipv6_addr); 7998 else 7999 rc = sprintf(buf, "\n"); 8000 break; 8001 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8002 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 8003 break; 8004 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 8005 if (fnode_sess->discovery_parent_type == DDB_ISNS) 8006 parent_type = ISCSI_DISC_PARENT_ISNS; 8007 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 8008 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8009 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 8010 parent_type = ISCSI_DISC_PARENT_SENDTGT; 8011 else 8012 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8013 8014 rc = sprintf(buf, "%s\n", 8015 iscsi_get_discovery_parent_name(parent_type)); 8016 break; 8017 case ISCSI_FLASHNODE_NAME: 8018 if (fnode_sess->targetname) 8019 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 8020 else 8021 rc = sprintf(buf, "\n"); 8022 break; 8023 case ISCSI_FLASHNODE_TPGT: 8024 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 8025 break; 8026 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8027 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 8028 break; 8029 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8030 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 8031 break; 8032 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8033 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8034 break; 8035 case ISCSI_FLASHNODE_USERNAME: 8036 if (fnode_sess->chap_auth_en) { 8037 qla4xxx_get_uni_chap_at_index(ha, 8038 chap_tbl.name, 8039 chap_tbl.secret, 8040 fnode_sess->chap_out_idx); 8041 rc = sprintf(buf, "%s\n", chap_tbl.name); 8042 } else { 8043 rc = sprintf(buf, "\n"); 8044 } 8045 break; 8046 case ISCSI_FLASHNODE_PASSWORD: 8047 if (fnode_sess->chap_auth_en) { 8048 qla4xxx_get_uni_chap_at_index(ha, 8049 chap_tbl.name, 8050 chap_tbl.secret, 8051 fnode_sess->chap_out_idx); 8052 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8053 } else { 8054 rc = sprintf(buf, "\n"); 8055 } 8056 break; 8057 case ISCSI_FLASHNODE_STATSN: 8058 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8059 break; 8060 case ISCSI_FLASHNODE_EXP_STATSN: 8061 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8062 break; 8063 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8064 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8065 break; 8066 default: 8067 rc = -ENOSYS; 8068 break; 8069 } 8070 8071 put_device(dev); 8072 return rc; 8073 } 8074 8075 /** 8076 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8077 * @fnode_sess: pointer to session attrs of flash ddb entry 8078 * @fnode_conn: pointer to connection attrs of flash ddb entry 8079 * @data: Parameters and their values to update 8080 * @len: len of data 8081 * 8082 * This sets the parameter of flash ddb entry and writes them to flash 8083 **/ 8084 static int 8085 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8086 struct iscsi_bus_flash_conn *fnode_conn, 8087 void *data, int len) 8088 { 8089 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8090 struct scsi_qla_host *ha = to_qla_host(shost); 8091 struct iscsi_flashnode_param_info *fnode_param; 8092 struct ql4_chap_table chap_tbl; 8093 struct nlattr *attr; 8094 uint16_t chap_out_idx = INVALID_ENTRY; 8095 int rc = QLA_ERROR; 8096 uint32_t rem = len; 8097 8098 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8099 nla_for_each_attr(attr, data, len, rem) { 8100 fnode_param = nla_data(attr); 8101 8102 switch (fnode_param->param) { 8103 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8104 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8105 break; 8106 case ISCSI_FLASHNODE_PORTAL_TYPE: 8107 memcpy(fnode_sess->portal_type, fnode_param->value, 8108 strlen(fnode_sess->portal_type)); 8109 break; 8110 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8111 fnode_sess->auto_snd_tgt_disable = 8112 fnode_param->value[0]; 8113 break; 8114 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8115 fnode_sess->discovery_sess = fnode_param->value[0]; 8116 break; 8117 case ISCSI_FLASHNODE_ENTRY_EN: 8118 fnode_sess->entry_state = fnode_param->value[0]; 8119 break; 8120 case ISCSI_FLASHNODE_HDR_DGST_EN: 8121 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8122 break; 8123 case ISCSI_FLASHNODE_DATA_DGST_EN: 8124 fnode_conn->datadgst_en = fnode_param->value[0]; 8125 break; 8126 case ISCSI_FLASHNODE_IMM_DATA_EN: 8127 fnode_sess->imm_data_en = fnode_param->value[0]; 8128 break; 8129 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8130 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8131 break; 8132 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8133 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8134 break; 8135 case ISCSI_FLASHNODE_PDU_INORDER: 8136 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8137 break; 8138 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8139 fnode_sess->chap_auth_en = fnode_param->value[0]; 8140 /* Invalidate chap index if chap auth is disabled */ 8141 if (!fnode_sess->chap_auth_en) 8142 fnode_sess->chap_out_idx = INVALID_ENTRY; 8143 8144 break; 8145 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8146 fnode_conn->snack_req_en = fnode_param->value[0]; 8147 break; 8148 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8149 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8150 break; 8151 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8152 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8153 break; 8154 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8155 fnode_sess->discovery_auth_optional = 8156 fnode_param->value[0]; 8157 break; 8158 case ISCSI_FLASHNODE_ERL: 8159 fnode_sess->erl = fnode_param->value[0]; 8160 break; 8161 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8162 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8163 break; 8164 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8165 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8166 break; 8167 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8168 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8169 break; 8170 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8171 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8172 break; 8173 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8174 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8175 break; 8176 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8177 fnode_conn->fragment_disable = fnode_param->value[0]; 8178 break; 8179 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8180 fnode_conn->max_recv_dlength = 8181 *(unsigned *)fnode_param->value; 8182 break; 8183 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8184 fnode_conn->max_xmit_dlength = 8185 *(unsigned *)fnode_param->value; 8186 break; 8187 case ISCSI_FLASHNODE_FIRST_BURST: 8188 fnode_sess->first_burst = 8189 *(unsigned *)fnode_param->value; 8190 break; 8191 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8192 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8193 break; 8194 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8195 fnode_sess->time2retain = 8196 *(uint16_t *)fnode_param->value; 8197 break; 8198 case ISCSI_FLASHNODE_MAX_R2T: 8199 fnode_sess->max_r2t = 8200 *(uint16_t *)fnode_param->value; 8201 break; 8202 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8203 fnode_conn->keepalive_timeout = 8204 *(uint16_t *)fnode_param->value; 8205 break; 8206 case ISCSI_FLASHNODE_ISID: 8207 memcpy(fnode_sess->isid, fnode_param->value, 8208 sizeof(fnode_sess->isid)); 8209 break; 8210 case ISCSI_FLASHNODE_TSID: 8211 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8212 break; 8213 case ISCSI_FLASHNODE_PORT: 8214 fnode_conn->port = *(uint16_t *)fnode_param->value; 8215 break; 8216 case ISCSI_FLASHNODE_MAX_BURST: 8217 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8218 break; 8219 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8220 fnode_sess->default_taskmgmt_timeout = 8221 *(uint16_t *)fnode_param->value; 8222 break; 8223 case ISCSI_FLASHNODE_IPADDR: 8224 memcpy(fnode_conn->ipaddress, fnode_param->value, 8225 IPv6_ADDR_LEN); 8226 break; 8227 case ISCSI_FLASHNODE_ALIAS: 8228 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8229 (char *)fnode_param->value); 8230 break; 8231 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8232 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8233 IPv6_ADDR_LEN); 8234 break; 8235 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8236 fnode_conn->max_segment_size = 8237 *(unsigned *)fnode_param->value; 8238 break; 8239 case ISCSI_FLASHNODE_LOCAL_PORT: 8240 fnode_conn->local_port = 8241 *(uint16_t *)fnode_param->value; 8242 break; 8243 case ISCSI_FLASHNODE_IPV4_TOS: 8244 fnode_conn->ipv4_tos = fnode_param->value[0]; 8245 break; 8246 case ISCSI_FLASHNODE_IPV6_TC: 8247 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8248 break; 8249 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8250 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8251 break; 8252 case ISCSI_FLASHNODE_NAME: 8253 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8254 (char *)fnode_param->value); 8255 break; 8256 case ISCSI_FLASHNODE_TPGT: 8257 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8258 break; 8259 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8260 memcpy(fnode_conn->link_local_ipv6_addr, 8261 fnode_param->value, IPv6_ADDR_LEN); 8262 break; 8263 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8264 fnode_sess->discovery_parent_idx = 8265 *(uint16_t *)fnode_param->value; 8266 break; 8267 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8268 fnode_conn->tcp_xmit_wsf = 8269 *(uint8_t *)fnode_param->value; 8270 break; 8271 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8272 fnode_conn->tcp_recv_wsf = 8273 *(uint8_t *)fnode_param->value; 8274 break; 8275 case ISCSI_FLASHNODE_STATSN: 8276 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8277 break; 8278 case ISCSI_FLASHNODE_EXP_STATSN: 8279 fnode_conn->exp_statsn = 8280 *(uint32_t *)fnode_param->value; 8281 break; 8282 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8283 chap_out_idx = *(uint16_t *)fnode_param->value; 8284 if (!qla4xxx_get_uni_chap_at_index(ha, 8285 chap_tbl.name, 8286 chap_tbl.secret, 8287 chap_out_idx)) { 8288 fnode_sess->chap_out_idx = chap_out_idx; 8289 /* Enable chap auth if chap index is valid */ 8290 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8291 } 8292 break; 8293 default: 8294 ql4_printk(KERN_ERR, ha, 8295 "%s: No such sysfs attribute\n", __func__); 8296 rc = -ENOSYS; 8297 goto exit_set_param; 8298 } 8299 } 8300 8301 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8302 8303 exit_set_param: 8304 return rc; 8305 } 8306 8307 /** 8308 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8309 * @fnode_sess: pointer to session attrs of flash ddb entry 8310 * 8311 * This invalidates the flash ddb entry at the given index 8312 **/ 8313 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8314 { 8315 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8316 struct scsi_qla_host *ha = to_qla_host(shost); 8317 uint32_t dev_db_start_offset; 8318 uint32_t dev_db_end_offset; 8319 struct dev_db_entry *fw_ddb_entry = NULL; 8320 dma_addr_t fw_ddb_entry_dma; 8321 uint16_t *ddb_cookie = NULL; 8322 size_t ddb_size = 0; 8323 void *pddb = NULL; 8324 int target_id; 8325 int rc = 0; 8326 8327 if (fnode_sess->is_boot_target) { 8328 rc = -EPERM; 8329 DEBUG2(ql4_printk(KERN_ERR, ha, 8330 "%s: Deletion of boot target entry is not permitted.\n", 8331 __func__)); 8332 goto exit_ddb_del; 8333 } 8334 8335 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8336 goto sysfs_ddb_del; 8337 8338 if (is_qla40XX(ha)) { 8339 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8340 dev_db_end_offset = FLASH_OFFSET_DB_END; 8341 dev_db_start_offset += (fnode_sess->target_id * 8342 sizeof(*fw_ddb_entry)); 8343 ddb_size = sizeof(*fw_ddb_entry); 8344 } else { 8345 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8346 (ha->hw.flt_region_ddb << 2); 8347 /* flt_ddb_size is DDB table size for both ports 8348 * so divide it by 2 to calculate the offset for second port 8349 */ 8350 if (ha->port_num == 1) 8351 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8352 8353 dev_db_end_offset = dev_db_start_offset + 8354 (ha->hw.flt_ddb_size / 2); 8355 8356 dev_db_start_offset += (fnode_sess->target_id * 8357 sizeof(*fw_ddb_entry)); 8358 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8359 8360 ddb_size = sizeof(*ddb_cookie); 8361 } 8362 8363 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8364 __func__, dev_db_start_offset, dev_db_end_offset)); 8365 8366 if (dev_db_start_offset > dev_db_end_offset) { 8367 rc = -EIO; 8368 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8369 __func__, fnode_sess->target_id)); 8370 goto exit_ddb_del; 8371 } 8372 8373 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8374 &fw_ddb_entry_dma, GFP_KERNEL); 8375 if (!pddb) { 8376 rc = -ENOMEM; 8377 DEBUG2(ql4_printk(KERN_ERR, ha, 8378 "%s: Unable to allocate dma buffer\n", 8379 __func__)); 8380 goto exit_ddb_del; 8381 } 8382 8383 if (is_qla40XX(ha)) { 8384 fw_ddb_entry = pddb; 8385 memset(fw_ddb_entry, 0, ddb_size); 8386 ddb_cookie = &fw_ddb_entry->cookie; 8387 } else { 8388 ddb_cookie = pddb; 8389 } 8390 8391 /* invalidate the cookie */ 8392 *ddb_cookie = 0xFFEE; 8393 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8394 ddb_size, FLASH_OPT_RMW_COMMIT); 8395 8396 sysfs_ddb_del: 8397 target_id = fnode_sess->target_id; 8398 iscsi_destroy_flashnode_sess(fnode_sess); 8399 ql4_printk(KERN_INFO, ha, 8400 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8401 __func__, target_id, ha->host_no); 8402 exit_ddb_del: 8403 if (pddb) 8404 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8405 fw_ddb_entry_dma); 8406 return rc; 8407 } 8408 8409 /** 8410 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8411 * @ha: pointer to adapter structure 8412 * 8413 * Export the firmware DDB for all send targets and normal targets to sysfs. 8414 **/ 8415 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8416 { 8417 struct dev_db_entry *fw_ddb_entry = NULL; 8418 dma_addr_t fw_ddb_entry_dma; 8419 uint16_t max_ddbs; 8420 uint16_t idx = 0; 8421 int ret = QLA_SUCCESS; 8422 8423 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8424 sizeof(*fw_ddb_entry), 8425 &fw_ddb_entry_dma, GFP_KERNEL); 8426 if (!fw_ddb_entry) { 8427 DEBUG2(ql4_printk(KERN_ERR, ha, 8428 "%s: Unable to allocate dma buffer\n", 8429 __func__)); 8430 return -ENOMEM; 8431 } 8432 8433 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8434 MAX_DEV_DB_ENTRIES; 8435 8436 for (idx = 0; idx < max_ddbs; idx++) { 8437 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8438 idx)) 8439 continue; 8440 8441 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8442 if (ret) { 8443 ret = -EIO; 8444 break; 8445 } 8446 } 8447 8448 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8449 fw_ddb_entry_dma); 8450 8451 return ret; 8452 } 8453 8454 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8455 { 8456 iscsi_destroy_all_flashnode(ha->host); 8457 } 8458 8459 /** 8460 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8461 * @ha: pointer to adapter structure 8462 * @is_reset: Is this init path or reset path 8463 * 8464 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8465 * using connection open, then create the list of normal targets (nt) 8466 * from firmware DDBs. Based on the list of nt setup session and connection 8467 * objects. 8468 **/ 8469 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8470 { 8471 uint16_t tmo = 0; 8472 struct list_head list_st, list_nt; 8473 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8474 unsigned long wtime; 8475 8476 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8477 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8478 ha->is_reset = is_reset; 8479 return; 8480 } 8481 8482 INIT_LIST_HEAD(&list_st); 8483 INIT_LIST_HEAD(&list_nt); 8484 8485 qla4xxx_build_st_list(ha, &list_st); 8486 8487 /* Before issuing conn open mbox, ensure all IPs states are configured 8488 * Note, conn open fails if IPs are not configured 8489 */ 8490 qla4xxx_wait_for_ip_configuration(ha); 8491 8492 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8493 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8494 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8495 } 8496 8497 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8498 tmo = ((ha->def_timeout > LOGIN_TOV) && 8499 (ha->def_timeout < LOGIN_TOV * 10) ? 8500 ha->def_timeout : LOGIN_TOV); 8501 8502 DEBUG2(ql4_printk(KERN_INFO, ha, 8503 "Default time to wait for build ddb %d\n", tmo)); 8504 8505 wtime = jiffies + (HZ * tmo); 8506 do { 8507 if (list_empty(&list_st)) 8508 break; 8509 8510 qla4xxx_remove_failed_ddb(ha, &list_st); 8511 schedule_timeout_uninterruptible(HZ / 10); 8512 } while (time_after(wtime, jiffies)); 8513 8514 8515 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8516 8517 qla4xxx_free_ddb_list(&list_st); 8518 qla4xxx_free_ddb_list(&list_nt); 8519 8520 qla4xxx_free_ddb_index(ha); 8521 } 8522 8523 /** 8524 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8525 * response. 8526 * @ha: pointer to adapter structure 8527 * 8528 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8529 * set in DDB and we will wait for login response of boot targets during 8530 * probe. 8531 **/ 8532 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8533 { 8534 struct ddb_entry *ddb_entry; 8535 struct dev_db_entry *fw_ddb_entry = NULL; 8536 dma_addr_t fw_ddb_entry_dma; 8537 unsigned long wtime; 8538 uint32_t ddb_state; 8539 int max_ddbs, idx, ret; 8540 8541 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8542 MAX_DEV_DB_ENTRIES; 8543 8544 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8545 &fw_ddb_entry_dma, GFP_KERNEL); 8546 if (!fw_ddb_entry) { 8547 ql4_printk(KERN_ERR, ha, 8548 "%s: Unable to allocate dma buffer\n", __func__); 8549 goto exit_login_resp; 8550 } 8551 8552 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8553 8554 for (idx = 0; idx < max_ddbs; idx++) { 8555 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8556 if (ddb_entry == NULL) 8557 continue; 8558 8559 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8560 DEBUG2(ql4_printk(KERN_INFO, ha, 8561 "%s: DDB index [%d]\n", __func__, 8562 ddb_entry->fw_ddb_index)); 8563 do { 8564 ret = qla4xxx_get_fwddb_entry(ha, 8565 ddb_entry->fw_ddb_index, 8566 fw_ddb_entry, fw_ddb_entry_dma, 8567 NULL, NULL, &ddb_state, NULL, 8568 NULL, NULL); 8569 if (ret == QLA_ERROR) 8570 goto exit_login_resp; 8571 8572 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8573 (ddb_state == DDB_DS_SESSION_FAILED)) 8574 break; 8575 8576 schedule_timeout_uninterruptible(HZ); 8577 8578 } while ((time_after(wtime, jiffies))); 8579 8580 if (!time_after(wtime, jiffies)) { 8581 DEBUG2(ql4_printk(KERN_INFO, ha, 8582 "%s: Login response wait timer expired\n", 8583 __func__)); 8584 goto exit_login_resp; 8585 } 8586 } 8587 } 8588 8589 exit_login_resp: 8590 if (fw_ddb_entry) 8591 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8592 fw_ddb_entry, fw_ddb_entry_dma); 8593 } 8594 8595 /** 8596 * qla4xxx_probe_adapter - callback function to probe HBA 8597 * @pdev: pointer to pci_dev structure 8598 * @pci_device_id: pointer to pci_device entry 8599 * 8600 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8601 * It returns zero if successful. It also initializes all data necessary for 8602 * the driver. 8603 **/ 8604 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8605 const struct pci_device_id *ent) 8606 { 8607 int ret = -ENODEV, status; 8608 struct Scsi_Host *host; 8609 struct scsi_qla_host *ha; 8610 uint8_t init_retry_count = 0; 8611 char buf[34]; 8612 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8613 uint32_t dev_state; 8614 8615 if (pci_enable_device(pdev)) 8616 return -1; 8617 8618 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8619 if (host == NULL) { 8620 printk(KERN_WARNING 8621 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8622 goto probe_disable_device; 8623 } 8624 8625 /* Clear our data area */ 8626 ha = to_qla_host(host); 8627 memset(ha, 0, sizeof(*ha)); 8628 8629 /* Save the information from PCI BIOS. */ 8630 ha->pdev = pdev; 8631 ha->host = host; 8632 ha->host_no = host->host_no; 8633 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8634 8635 pci_enable_pcie_error_reporting(pdev); 8636 8637 /* Setup Runtime configurable options */ 8638 if (is_qla8022(ha)) { 8639 ha->isp_ops = &qla4_82xx_isp_ops; 8640 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8641 ha->qdr_sn_window = -1; 8642 ha->ddr_mn_window = -1; 8643 ha->curr_window = 255; 8644 nx_legacy_intr = &legacy_intr[ha->func_num]; 8645 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8646 ha->nx_legacy_intr.tgt_status_reg = 8647 nx_legacy_intr->tgt_status_reg; 8648 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8649 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8650 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8651 ha->isp_ops = &qla4_83xx_isp_ops; 8652 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8653 } else { 8654 ha->isp_ops = &qla4xxx_isp_ops; 8655 } 8656 8657 if (is_qla80XX(ha)) { 8658 rwlock_init(&ha->hw_lock); 8659 ha->pf_bit = ha->func_num << 16; 8660 /* Set EEH reset type to fundamental if required by hba */ 8661 pdev->needs_freset = 1; 8662 } 8663 8664 /* Configure PCI I/O space. */ 8665 ret = ha->isp_ops->iospace_config(ha); 8666 if (ret) 8667 goto probe_failed_ioconfig; 8668 8669 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8670 pdev->device, pdev->irq, ha->reg); 8671 8672 qla4xxx_config_dma_addressing(ha); 8673 8674 /* Initialize lists and spinlocks. */ 8675 INIT_LIST_HEAD(&ha->free_srb_q); 8676 8677 mutex_init(&ha->mbox_sem); 8678 mutex_init(&ha->chap_sem); 8679 init_completion(&ha->mbx_intr_comp); 8680 init_completion(&ha->disable_acb_comp); 8681 init_completion(&ha->idc_comp); 8682 init_completion(&ha->link_up_comp); 8683 8684 spin_lock_init(&ha->hardware_lock); 8685 spin_lock_init(&ha->work_lock); 8686 8687 /* Initialize work list */ 8688 INIT_LIST_HEAD(&ha->work_list); 8689 8690 /* Allocate dma buffers */ 8691 if (qla4xxx_mem_alloc(ha)) { 8692 ql4_printk(KERN_WARNING, ha, 8693 "[ERROR] Failed to allocate memory for adapter\n"); 8694 8695 ret = -ENOMEM; 8696 goto probe_failed; 8697 } 8698 8699 host->cmd_per_lun = 3; 8700 host->max_channel = 0; 8701 host->max_lun = MAX_LUNS - 1; 8702 host->max_id = MAX_TARGETS; 8703 host->max_cmd_len = IOCB_MAX_CDB_LEN; 8704 host->can_queue = MAX_SRBS ; 8705 host->transportt = qla4xxx_scsi_transport; 8706 8707 pci_set_drvdata(pdev, ha); 8708 8709 ret = scsi_add_host(host, &pdev->dev); 8710 if (ret) 8711 goto probe_failed; 8712 8713 if (is_qla80XX(ha)) 8714 qla4_8xxx_get_flash_info(ha); 8715 8716 if (is_qla8032(ha) || is_qla8042(ha)) { 8717 qla4_83xx_read_reset_template(ha); 8718 /* 8719 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8720 * If DONRESET_BIT0 is set, drivers should not set dev_state 8721 * to NEED_RESET. But if NEED_RESET is set, drivers should 8722 * should honor the reset. 8723 */ 8724 if (ql4xdontresethba == 1) 8725 qla4_83xx_set_idc_dontreset(ha); 8726 } 8727 8728 /* 8729 * Initialize the Host adapter request/response queues and 8730 * firmware 8731 * NOTE: interrupts enabled upon successful completion 8732 */ 8733 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8734 8735 /* Dont retry adapter initialization if IRQ allocation failed */ 8736 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8737 goto skip_retry_init; 8738 8739 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8740 init_retry_count++ < MAX_INIT_RETRIES) { 8741 8742 if (is_qla80XX(ha)) { 8743 ha->isp_ops->idc_lock(ha); 8744 dev_state = qla4_8xxx_rd_direct(ha, 8745 QLA8XXX_CRB_DEV_STATE); 8746 ha->isp_ops->idc_unlock(ha); 8747 if (dev_state == QLA8XXX_DEV_FAILED) { 8748 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8749 "initialize adapter. H/W is in failed state\n", 8750 __func__); 8751 break; 8752 } 8753 } 8754 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8755 "(%d)\n", __func__, init_retry_count)); 8756 8757 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8758 continue; 8759 8760 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8761 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8762 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8763 goto skip_retry_init; 8764 } 8765 } 8766 8767 skip_retry_init: 8768 if (!test_bit(AF_ONLINE, &ha->flags)) { 8769 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8770 8771 if ((is_qla8022(ha) && ql4xdontresethba) || 8772 ((is_qla8032(ha) || is_qla8042(ha)) && 8773 qla4_83xx_idc_dontreset(ha))) { 8774 /* Put the device in failed state. */ 8775 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8776 ha->isp_ops->idc_lock(ha); 8777 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8778 QLA8XXX_DEV_FAILED); 8779 ha->isp_ops->idc_unlock(ha); 8780 } 8781 ret = -ENODEV; 8782 goto remove_host; 8783 } 8784 8785 /* Startup the kernel thread for this host adapter. */ 8786 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8787 "qla4xxx_dpc\n", __func__)); 8788 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8789 ha->dpc_thread = create_singlethread_workqueue(buf); 8790 if (!ha->dpc_thread) { 8791 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8792 ret = -ENODEV; 8793 goto remove_host; 8794 } 8795 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8796 8797 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8798 ha->host_no); 8799 if (!ha->task_wq) { 8800 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8801 ret = -ENODEV; 8802 goto remove_host; 8803 } 8804 8805 /* 8806 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8807 * (which is called indirectly by qla4xxx_initialize_adapter), 8808 * so that irqs will be registered after crbinit but before 8809 * mbx_intr_enable. 8810 */ 8811 if (is_qla40XX(ha)) { 8812 ret = qla4xxx_request_irqs(ha); 8813 if (ret) { 8814 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8815 "interrupt %d already in use.\n", pdev->irq); 8816 goto remove_host; 8817 } 8818 } 8819 8820 pci_save_state(ha->pdev); 8821 ha->isp_ops->enable_intrs(ha); 8822 8823 /* Start timer thread. */ 8824 qla4xxx_start_timer(ha, 1); 8825 8826 set_bit(AF_INIT_DONE, &ha->flags); 8827 8828 qla4_8xxx_alloc_sysfs_attr(ha); 8829 8830 printk(KERN_INFO 8831 " QLogic iSCSI HBA Driver version: %s\n" 8832 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8833 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8834 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8835 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8836 8837 /* Set the driver version */ 8838 if (is_qla80XX(ha)) 8839 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8840 8841 if (qla4xxx_setup_boot_info(ha)) 8842 ql4_printk(KERN_ERR, ha, 8843 "%s: No iSCSI boot target configured\n", __func__); 8844 8845 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags); 8846 /* Perform the build ddb list and login to each */ 8847 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8848 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8849 qla4xxx_wait_login_resp_boot_tgt(ha); 8850 8851 qla4xxx_create_chap_list(ha); 8852 8853 qla4xxx_create_ifaces(ha); 8854 return 0; 8855 8856 remove_host: 8857 scsi_remove_host(ha->host); 8858 8859 probe_failed: 8860 qla4xxx_free_adapter(ha); 8861 8862 probe_failed_ioconfig: 8863 pci_disable_pcie_error_reporting(pdev); 8864 scsi_host_put(ha->host); 8865 8866 probe_disable_device: 8867 pci_disable_device(pdev); 8868 8869 return ret; 8870 } 8871 8872 /** 8873 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8874 * @ha: pointer to adapter structure 8875 * 8876 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8877 * so that the other port will not re-initialize while in the process of 8878 * removing the ha due to driver unload or hba hotplug. 8879 **/ 8880 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8881 { 8882 struct scsi_qla_host *other_ha = NULL; 8883 struct pci_dev *other_pdev = NULL; 8884 int fn = ISP4XXX_PCI_FN_2; 8885 8886 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8887 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8888 fn = ISP4XXX_PCI_FN_1; 8889 8890 other_pdev = 8891 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8892 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8893 fn)); 8894 8895 /* Get other_ha if other_pdev is valid and state is enable*/ 8896 if (other_pdev) { 8897 if (atomic_read(&other_pdev->enable_cnt)) { 8898 other_ha = pci_get_drvdata(other_pdev); 8899 if (other_ha) { 8900 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8901 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8902 "Prevent %s reinit\n", __func__, 8903 dev_name(&other_ha->pdev->dev))); 8904 } 8905 } 8906 pci_dev_put(other_pdev); 8907 } 8908 } 8909 8910 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8911 struct ddb_entry *ddb_entry) 8912 { 8913 struct dev_db_entry *fw_ddb_entry = NULL; 8914 dma_addr_t fw_ddb_entry_dma; 8915 unsigned long wtime; 8916 uint32_t ddb_state; 8917 int options; 8918 int status; 8919 8920 options = LOGOUT_OPTION_CLOSE_SESSION; 8921 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8922 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8923 goto clear_ddb; 8924 } 8925 8926 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8927 &fw_ddb_entry_dma, GFP_KERNEL); 8928 if (!fw_ddb_entry) { 8929 ql4_printk(KERN_ERR, ha, 8930 "%s: Unable to allocate dma buffer\n", __func__); 8931 goto clear_ddb; 8932 } 8933 8934 wtime = jiffies + (HZ * LOGOUT_TOV); 8935 do { 8936 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8937 fw_ddb_entry, fw_ddb_entry_dma, 8938 NULL, NULL, &ddb_state, NULL, 8939 NULL, NULL); 8940 if (status == QLA_ERROR) 8941 goto free_ddb; 8942 8943 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8944 (ddb_state == DDB_DS_SESSION_FAILED)) 8945 goto free_ddb; 8946 8947 schedule_timeout_uninterruptible(HZ); 8948 } while ((time_after(wtime, jiffies))); 8949 8950 free_ddb: 8951 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8952 fw_ddb_entry, fw_ddb_entry_dma); 8953 clear_ddb: 8954 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8955 } 8956 8957 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8958 { 8959 struct ddb_entry *ddb_entry; 8960 int idx; 8961 8962 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8963 8964 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8965 if ((ddb_entry != NULL) && 8966 (ddb_entry->ddb_type == FLASH_DDB)) { 8967 8968 qla4xxx_destroy_ddb(ha, ddb_entry); 8969 /* 8970 * we have decremented the reference count of the driver 8971 * when we setup the session to have the driver unload 8972 * to be seamless without actually destroying the 8973 * session 8974 **/ 8975 try_module_get(qla4xxx_iscsi_transport.owner); 8976 iscsi_destroy_endpoint(ddb_entry->conn->ep); 8977 qla4xxx_free_ddb(ha, ddb_entry); 8978 iscsi_session_teardown(ddb_entry->sess); 8979 } 8980 } 8981 } 8982 /** 8983 * qla4xxx_remove_adapter - callback function to remove adapter. 8984 * @pci_dev: PCI device pointer 8985 **/ 8986 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 8987 { 8988 struct scsi_qla_host *ha; 8989 8990 /* 8991 * If the PCI device is disabled then it means probe_adapter had 8992 * failed and resources already cleaned up on probe_adapter exit. 8993 */ 8994 if (!pci_is_enabled(pdev)) 8995 return; 8996 8997 ha = pci_get_drvdata(pdev); 8998 8999 if (is_qla40XX(ha)) 9000 qla4xxx_prevent_other_port_reinit(ha); 9001 9002 /* destroy iface from sysfs */ 9003 qla4xxx_destroy_ifaces(ha); 9004 9005 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 9006 iscsi_boot_destroy_kset(ha->boot_kset); 9007 9008 qla4xxx_destroy_fw_ddb_session(ha); 9009 qla4_8xxx_free_sysfs_attr(ha); 9010 9011 qla4xxx_sysfs_ddb_remove(ha); 9012 scsi_remove_host(ha->host); 9013 9014 qla4xxx_free_adapter(ha); 9015 9016 scsi_host_put(ha->host); 9017 9018 pci_disable_pcie_error_reporting(pdev); 9019 pci_disable_device(pdev); 9020 } 9021 9022 /** 9023 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9024 * @ha: HA context 9025 * 9026 * At exit, the @ha's flags.enable_64bit_addressing set to indicated 9027 * supported addressing method. 9028 */ 9029 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9030 { 9031 int retval; 9032 9033 /* Update our PCI device dma_mask for full 64 bit mask */ 9034 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 9035 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 9036 dev_dbg(&ha->pdev->dev, 9037 "Failed to set 64 bit PCI consistent mask; " 9038 "using 32 bit.\n"); 9039 retval = pci_set_consistent_dma_mask(ha->pdev, 9040 DMA_BIT_MASK(32)); 9041 } 9042 } else 9043 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 9044 } 9045 9046 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 9047 { 9048 struct iscsi_cls_session *cls_sess; 9049 struct iscsi_session *sess; 9050 struct ddb_entry *ddb; 9051 int queue_depth = QL4_DEF_QDEPTH; 9052 9053 cls_sess = starget_to_session(sdev->sdev_target); 9054 sess = cls_sess->dd_data; 9055 ddb = sess->dd_data; 9056 9057 sdev->hostdata = ddb; 9058 9059 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9060 queue_depth = ql4xmaxqdepth; 9061 9062 scsi_change_queue_depth(sdev, queue_depth); 9063 return 0; 9064 } 9065 9066 /** 9067 * qla4xxx_del_from_active_array - returns an active srb 9068 * @ha: Pointer to host adapter structure. 9069 * @index: index into the active_array 9070 * 9071 * This routine removes and returns the srb at the specified index 9072 **/ 9073 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9074 uint32_t index) 9075 { 9076 struct srb *srb = NULL; 9077 struct scsi_cmnd *cmd = NULL; 9078 9079 cmd = scsi_host_find_tag(ha->host, index); 9080 if (!cmd) 9081 return srb; 9082 9083 srb = (struct srb *)CMD_SP(cmd); 9084 if (!srb) 9085 return srb; 9086 9087 /* update counters */ 9088 if (srb->flags & SRB_DMA_VALID) { 9089 ha->iocb_cnt -= srb->iocb_cnt; 9090 if (srb->cmd) 9091 srb->cmd->host_scribble = 9092 (unsigned char *)(unsigned long) MAX_SRBS; 9093 } 9094 return srb; 9095 } 9096 9097 /** 9098 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9099 * @ha: Pointer to host adapter structure. 9100 * @cmd: Scsi Command to wait on. 9101 * 9102 * This routine waits for the command to be returned by the Firmware 9103 * for some max time. 9104 **/ 9105 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9106 struct scsi_cmnd *cmd) 9107 { 9108 int done = 0; 9109 struct srb *rp; 9110 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9111 int ret = SUCCESS; 9112 9113 /* Dont wait on command if PCI error is being handled 9114 * by PCI AER driver 9115 */ 9116 if (unlikely(pci_channel_offline(ha->pdev)) || 9117 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9118 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9119 ha->host_no, __func__); 9120 return ret; 9121 } 9122 9123 do { 9124 /* Checking to see if its returned to OS */ 9125 rp = (struct srb *) CMD_SP(cmd); 9126 if (rp == NULL) { 9127 done++; 9128 break; 9129 } 9130 9131 msleep(2000); 9132 } while (max_wait_time--); 9133 9134 return done; 9135 } 9136 9137 /** 9138 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9139 * @ha: Pointer to host adapter structure 9140 **/ 9141 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9142 { 9143 unsigned long wait_online; 9144 9145 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9146 while (time_before(jiffies, wait_online)) { 9147 9148 if (adapter_up(ha)) 9149 return QLA_SUCCESS; 9150 9151 msleep(2000); 9152 } 9153 9154 return QLA_ERROR; 9155 } 9156 9157 /** 9158 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9159 * @ha: pointer to HBA 9160 * @t: target id 9161 * @l: lun id 9162 * 9163 * This function waits for all outstanding commands to a lun to complete. It 9164 * returns 0 if all pending commands are returned and 1 otherwise. 9165 **/ 9166 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9167 struct scsi_target *stgt, 9168 struct scsi_device *sdev) 9169 { 9170 int cnt; 9171 int status = 0; 9172 struct scsi_cmnd *cmd; 9173 9174 /* 9175 * Waiting for all commands for the designated target or dev 9176 * in the active array 9177 */ 9178 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9179 cmd = scsi_host_find_tag(ha->host, cnt); 9180 if (cmd && stgt == scsi_target(cmd->device) && 9181 (!sdev || sdev == cmd->device)) { 9182 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9183 status++; 9184 break; 9185 } 9186 } 9187 } 9188 return status; 9189 } 9190 9191 /** 9192 * qla4xxx_eh_abort - callback for abort task. 9193 * @cmd: Pointer to Linux's SCSI command structure 9194 * 9195 * This routine is called by the Linux OS to abort the specified 9196 * command. 9197 **/ 9198 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9199 { 9200 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9201 unsigned int id = cmd->device->id; 9202 uint64_t lun = cmd->device->lun; 9203 unsigned long flags; 9204 struct srb *srb = NULL; 9205 int ret = SUCCESS; 9206 int wait = 0; 9207 int rval; 9208 9209 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n", 9210 ha->host_no, id, lun, cmd, cmd->cmnd[0]); 9211 9212 rval = qla4xxx_isp_check_reg(ha); 9213 if (rval != QLA_SUCCESS) { 9214 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9215 return FAILED; 9216 } 9217 9218 spin_lock_irqsave(&ha->hardware_lock, flags); 9219 srb = (struct srb *) CMD_SP(cmd); 9220 if (!srb) { 9221 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9222 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n", 9223 ha->host_no, id, lun); 9224 return SUCCESS; 9225 } 9226 kref_get(&srb->srb_ref); 9227 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9228 9229 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9230 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n", 9231 ha->host_no, id, lun)); 9232 ret = FAILED; 9233 } else { 9234 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n", 9235 ha->host_no, id, lun)); 9236 wait = 1; 9237 } 9238 9239 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9240 9241 /* Wait for command to complete */ 9242 if (wait) { 9243 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9244 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n", 9245 ha->host_no, id, lun)); 9246 ret = FAILED; 9247 } 9248 } 9249 9250 ql4_printk(KERN_INFO, ha, 9251 "scsi%ld:%d:%llu: Abort command - %s\n", 9252 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9253 9254 return ret; 9255 } 9256 9257 /** 9258 * qla4xxx_eh_device_reset - callback for target reset. 9259 * @cmd: Pointer to Linux's SCSI command structure 9260 * 9261 * This routine is called by the Linux OS to reset all luns on the 9262 * specified target. 9263 **/ 9264 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9265 { 9266 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9267 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9268 int ret = FAILED, stat; 9269 int rval; 9270 9271 if (!ddb_entry) 9272 return ret; 9273 9274 ret = iscsi_block_scsi_eh(cmd); 9275 if (ret) 9276 return ret; 9277 ret = FAILED; 9278 9279 ql4_printk(KERN_INFO, ha, 9280 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no, 9281 cmd->device->channel, cmd->device->id, cmd->device->lun); 9282 9283 DEBUG2(printk(KERN_INFO 9284 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9285 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9286 cmd, jiffies, cmd->request->timeout / HZ, 9287 ha->dpc_flags, cmd->result, cmd->allowed)); 9288 9289 rval = qla4xxx_isp_check_reg(ha); 9290 if (rval != QLA_SUCCESS) { 9291 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9292 return FAILED; 9293 } 9294 9295 /* FIXME: wait for hba to go online */ 9296 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9297 if (stat != QLA_SUCCESS) { 9298 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9299 goto eh_dev_reset_done; 9300 } 9301 9302 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9303 cmd->device)) { 9304 ql4_printk(KERN_INFO, ha, 9305 "DEVICE RESET FAILED - waiting for " 9306 "commands.\n"); 9307 goto eh_dev_reset_done; 9308 } 9309 9310 /* Send marker. */ 9311 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9312 MM_LUN_RESET) != QLA_SUCCESS) 9313 goto eh_dev_reset_done; 9314 9315 ql4_printk(KERN_INFO, ha, 9316 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n", 9317 ha->host_no, cmd->device->channel, cmd->device->id, 9318 cmd->device->lun); 9319 9320 ret = SUCCESS; 9321 9322 eh_dev_reset_done: 9323 9324 return ret; 9325 } 9326 9327 /** 9328 * qla4xxx_eh_target_reset - callback for target reset. 9329 * @cmd: Pointer to Linux's SCSI command structure 9330 * 9331 * This routine is called by the Linux OS to reset the target. 9332 **/ 9333 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9334 { 9335 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9336 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9337 int stat, ret; 9338 int rval; 9339 9340 if (!ddb_entry) 9341 return FAILED; 9342 9343 ret = iscsi_block_scsi_eh(cmd); 9344 if (ret) 9345 return ret; 9346 9347 starget_printk(KERN_INFO, scsi_target(cmd->device), 9348 "WARM TARGET RESET ISSUED.\n"); 9349 9350 DEBUG2(printk(KERN_INFO 9351 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9352 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9353 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 9354 ha->dpc_flags, cmd->result, cmd->allowed)); 9355 9356 rval = qla4xxx_isp_check_reg(ha); 9357 if (rval != QLA_SUCCESS) { 9358 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9359 return FAILED; 9360 } 9361 9362 stat = qla4xxx_reset_target(ha, ddb_entry); 9363 if (stat != QLA_SUCCESS) { 9364 starget_printk(KERN_INFO, scsi_target(cmd->device), 9365 "WARM TARGET RESET FAILED.\n"); 9366 return FAILED; 9367 } 9368 9369 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9370 NULL)) { 9371 starget_printk(KERN_INFO, scsi_target(cmd->device), 9372 "WARM TARGET DEVICE RESET FAILED - " 9373 "waiting for commands.\n"); 9374 return FAILED; 9375 } 9376 9377 /* Send marker. */ 9378 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9379 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9380 starget_printk(KERN_INFO, scsi_target(cmd->device), 9381 "WARM TARGET DEVICE RESET FAILED - " 9382 "marker iocb failed.\n"); 9383 return FAILED; 9384 } 9385 9386 starget_printk(KERN_INFO, scsi_target(cmd->device), 9387 "WARM TARGET RESET SUCCEEDED.\n"); 9388 return SUCCESS; 9389 } 9390 9391 /** 9392 * qla4xxx_is_eh_active - check if error handler is running 9393 * @shost: Pointer to SCSI Host struct 9394 * 9395 * This routine finds that if reset host is called in EH 9396 * scenario or from some application like sg_reset 9397 **/ 9398 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9399 { 9400 if (shost->shost_state == SHOST_RECOVERY) 9401 return 1; 9402 return 0; 9403 } 9404 9405 /** 9406 * qla4xxx_eh_host_reset - kernel callback 9407 * @cmd: Pointer to Linux's SCSI command structure 9408 * 9409 * This routine is invoked by the Linux kernel to perform fatal error 9410 * recovery on the specified adapter. 9411 **/ 9412 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9413 { 9414 int return_status = FAILED; 9415 struct scsi_qla_host *ha; 9416 int rval; 9417 9418 ha = to_qla_host(cmd->device->host); 9419 9420 rval = qla4xxx_isp_check_reg(ha); 9421 if (rval != QLA_SUCCESS) { 9422 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9423 return FAILED; 9424 } 9425 9426 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9427 qla4_83xx_set_idc_dontreset(ha); 9428 9429 /* 9430 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9431 * protocol drivers, we should not set device_state to NEED_RESET 9432 */ 9433 if (ql4xdontresethba || 9434 ((is_qla8032(ha) || is_qla8042(ha)) && 9435 qla4_83xx_idc_dontreset(ha))) { 9436 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9437 ha->host_no, __func__)); 9438 9439 /* Clear outstanding srb in queues */ 9440 if (qla4xxx_is_eh_active(cmd->device->host)) 9441 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9442 9443 return FAILED; 9444 } 9445 9446 ql4_printk(KERN_INFO, ha, 9447 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no, 9448 cmd->device->channel, cmd->device->id, cmd->device->lun); 9449 9450 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9451 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9452 "DEAD.\n", ha->host_no, cmd->device->channel, 9453 __func__)); 9454 9455 return FAILED; 9456 } 9457 9458 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9459 if (is_qla80XX(ha)) 9460 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9461 else 9462 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9463 } 9464 9465 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9466 return_status = SUCCESS; 9467 9468 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9469 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9470 9471 return return_status; 9472 } 9473 9474 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9475 { 9476 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9477 uint32_t mbox_sts[MBOX_REG_COUNT]; 9478 struct addr_ctrl_blk_def *acb = NULL; 9479 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9480 int rval = QLA_SUCCESS; 9481 dma_addr_t acb_dma; 9482 9483 acb = dma_alloc_coherent(&ha->pdev->dev, 9484 sizeof(struct addr_ctrl_blk_def), 9485 &acb_dma, GFP_KERNEL); 9486 if (!acb) { 9487 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9488 __func__); 9489 rval = -ENOMEM; 9490 goto exit_port_reset; 9491 } 9492 9493 memset(acb, 0, acb_len); 9494 9495 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9496 if (rval != QLA_SUCCESS) { 9497 rval = -EIO; 9498 goto exit_free_acb; 9499 } 9500 9501 rval = qla4xxx_disable_acb(ha); 9502 if (rval != QLA_SUCCESS) { 9503 rval = -EIO; 9504 goto exit_free_acb; 9505 } 9506 9507 wait_for_completion_timeout(&ha->disable_acb_comp, 9508 DISABLE_ACB_TOV * HZ); 9509 9510 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9511 if (rval != QLA_SUCCESS) { 9512 rval = -EIO; 9513 goto exit_free_acb; 9514 } 9515 9516 exit_free_acb: 9517 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9518 acb, acb_dma); 9519 exit_port_reset: 9520 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9521 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9522 return rval; 9523 } 9524 9525 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9526 { 9527 struct scsi_qla_host *ha = to_qla_host(shost); 9528 int rval = QLA_SUCCESS; 9529 uint32_t idc_ctrl; 9530 9531 if (ql4xdontresethba) { 9532 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9533 __func__)); 9534 rval = -EPERM; 9535 goto exit_host_reset; 9536 } 9537 9538 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9539 goto recover_adapter; 9540 9541 switch (reset_type) { 9542 case SCSI_ADAPTER_RESET: 9543 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9544 break; 9545 case SCSI_FIRMWARE_RESET: 9546 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9547 if (is_qla80XX(ha)) 9548 /* set firmware context reset */ 9549 set_bit(DPC_RESET_HA_FW_CONTEXT, 9550 &ha->dpc_flags); 9551 else { 9552 rval = qla4xxx_context_reset(ha); 9553 goto exit_host_reset; 9554 } 9555 } 9556 break; 9557 } 9558 9559 recover_adapter: 9560 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9561 * reset is issued by application */ 9562 if ((is_qla8032(ha) || is_qla8042(ha)) && 9563 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9564 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9565 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9566 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9567 } 9568 9569 rval = qla4xxx_recover_adapter(ha); 9570 if (rval != QLA_SUCCESS) { 9571 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9572 __func__)); 9573 rval = -EIO; 9574 } 9575 9576 exit_host_reset: 9577 return rval; 9578 } 9579 9580 /* PCI AER driver recovers from all correctable errors w/o 9581 * driver intervention. For uncorrectable errors PCI AER 9582 * driver calls the following device driver's callbacks 9583 * 9584 * - Fatal Errors - link_reset 9585 * - Non-Fatal Errors - driver's error_detected() which 9586 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9587 * 9588 * PCI AER driver calls 9589 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled() 9590 * returns RECOVERED or NEED_RESET if fw_hung 9591 * NEED_RESET - driver's slot_reset() 9592 * DISCONNECT - device is dead & cannot recover 9593 * RECOVERED - driver's resume() 9594 */ 9595 static pci_ers_result_t 9596 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9597 { 9598 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9599 9600 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9601 ha->host_no, __func__, state); 9602 9603 if (!is_aer_supported(ha)) 9604 return PCI_ERS_RESULT_NONE; 9605 9606 switch (state) { 9607 case pci_channel_io_normal: 9608 clear_bit(AF_EEH_BUSY, &ha->flags); 9609 return PCI_ERS_RESULT_CAN_RECOVER; 9610 case pci_channel_io_frozen: 9611 set_bit(AF_EEH_BUSY, &ha->flags); 9612 qla4xxx_mailbox_premature_completion(ha); 9613 qla4xxx_free_irqs(ha); 9614 pci_disable_device(pdev); 9615 /* Return back all IOs */ 9616 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9617 return PCI_ERS_RESULT_NEED_RESET; 9618 case pci_channel_io_perm_failure: 9619 set_bit(AF_EEH_BUSY, &ha->flags); 9620 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9621 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9622 return PCI_ERS_RESULT_DISCONNECT; 9623 } 9624 return PCI_ERS_RESULT_NEED_RESET; 9625 } 9626 9627 /** 9628 * qla4xxx_pci_mmio_enabled() gets called if 9629 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9630 * and read/write to the device still works. 9631 **/ 9632 static pci_ers_result_t 9633 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9634 { 9635 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9636 9637 if (!is_aer_supported(ha)) 9638 return PCI_ERS_RESULT_NONE; 9639 9640 return PCI_ERS_RESULT_RECOVERED; 9641 } 9642 9643 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9644 { 9645 uint32_t rval = QLA_ERROR; 9646 int fn; 9647 struct pci_dev *other_pdev = NULL; 9648 9649 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9650 9651 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9652 9653 if (test_bit(AF_ONLINE, &ha->flags)) { 9654 clear_bit(AF_ONLINE, &ha->flags); 9655 clear_bit(AF_LINK_UP, &ha->flags); 9656 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9657 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9658 } 9659 9660 fn = PCI_FUNC(ha->pdev->devfn); 9661 if (is_qla8022(ha)) { 9662 while (fn > 0) { 9663 fn--; 9664 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9665 ha->host_no, __func__, fn); 9666 /* Get the pci device given the domain, bus, 9667 * slot/function number */ 9668 other_pdev = pci_get_domain_bus_and_slot( 9669 pci_domain_nr(ha->pdev->bus), 9670 ha->pdev->bus->number, 9671 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9672 fn)); 9673 9674 if (!other_pdev) 9675 continue; 9676 9677 if (atomic_read(&other_pdev->enable_cnt)) { 9678 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9679 ha->host_no, __func__, fn); 9680 pci_dev_put(other_pdev); 9681 break; 9682 } 9683 pci_dev_put(other_pdev); 9684 } 9685 } else { 9686 /* this case is meant for ISP83xx/ISP84xx only */ 9687 if (qla4_83xx_can_perform_reset(ha)) { 9688 /* reset fn as iSCSI is going to perform the reset */ 9689 fn = 0; 9690 } 9691 } 9692 9693 /* The first function on the card, the reset owner will 9694 * start & initialize the firmware. The other functions 9695 * on the card will reset the firmware context 9696 */ 9697 if (!fn) { 9698 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9699 "0x%x is the owner\n", ha->host_no, __func__, 9700 ha->pdev->devfn); 9701 9702 ha->isp_ops->idc_lock(ha); 9703 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9704 QLA8XXX_DEV_COLD); 9705 ha->isp_ops->idc_unlock(ha); 9706 9707 rval = qla4_8xxx_update_idc_reg(ha); 9708 if (rval == QLA_ERROR) { 9709 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9710 ha->host_no, __func__); 9711 ha->isp_ops->idc_lock(ha); 9712 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9713 QLA8XXX_DEV_FAILED); 9714 ha->isp_ops->idc_unlock(ha); 9715 goto exit_error_recovery; 9716 } 9717 9718 clear_bit(AF_FW_RECOVERY, &ha->flags); 9719 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9720 9721 if (rval != QLA_SUCCESS) { 9722 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9723 "FAILED\n", ha->host_no, __func__); 9724 qla4xxx_free_irqs(ha); 9725 ha->isp_ops->idc_lock(ha); 9726 qla4_8xxx_clear_drv_active(ha); 9727 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9728 QLA8XXX_DEV_FAILED); 9729 ha->isp_ops->idc_unlock(ha); 9730 } else { 9731 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9732 "READY\n", ha->host_no, __func__); 9733 ha->isp_ops->idc_lock(ha); 9734 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9735 QLA8XXX_DEV_READY); 9736 /* Clear driver state register */ 9737 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9738 qla4_8xxx_set_drv_active(ha); 9739 ha->isp_ops->idc_unlock(ha); 9740 ha->isp_ops->enable_intrs(ha); 9741 } 9742 } else { 9743 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9744 "the reset owner\n", ha->host_no, __func__, 9745 ha->pdev->devfn); 9746 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9747 QLA8XXX_DEV_READY)) { 9748 clear_bit(AF_FW_RECOVERY, &ha->flags); 9749 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9750 if (rval == QLA_SUCCESS) 9751 ha->isp_ops->enable_intrs(ha); 9752 else 9753 qla4xxx_free_irqs(ha); 9754 9755 ha->isp_ops->idc_lock(ha); 9756 qla4_8xxx_set_drv_active(ha); 9757 ha->isp_ops->idc_unlock(ha); 9758 } 9759 } 9760 exit_error_recovery: 9761 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9762 return rval; 9763 } 9764 9765 static pci_ers_result_t 9766 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9767 { 9768 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9769 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9770 int rc; 9771 9772 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9773 ha->host_no, __func__); 9774 9775 if (!is_aer_supported(ha)) 9776 return PCI_ERS_RESULT_NONE; 9777 9778 /* Restore the saved state of PCIe device - 9779 * BAR registers, PCI Config space, PCIX, MSI, 9780 * IOV states 9781 */ 9782 pci_restore_state(pdev); 9783 9784 /* pci_restore_state() clears the saved_state flag of the device 9785 * save restored state which resets saved_state flag 9786 */ 9787 pci_save_state(pdev); 9788 9789 /* Initialize device or resume if in suspended state */ 9790 rc = pci_enable_device(pdev); 9791 if (rc) { 9792 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9793 "device after reset\n", ha->host_no, __func__); 9794 goto exit_slot_reset; 9795 } 9796 9797 ha->isp_ops->disable_intrs(ha); 9798 9799 if (is_qla80XX(ha)) { 9800 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9801 ret = PCI_ERS_RESULT_RECOVERED; 9802 goto exit_slot_reset; 9803 } else 9804 goto exit_slot_reset; 9805 } 9806 9807 exit_slot_reset: 9808 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9809 "device after reset\n", ha->host_no, __func__, ret); 9810 return ret; 9811 } 9812 9813 static void 9814 qla4xxx_pci_resume(struct pci_dev *pdev) 9815 { 9816 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9817 int ret; 9818 9819 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9820 ha->host_no, __func__); 9821 9822 ret = qla4xxx_wait_for_hba_online(ha); 9823 if (ret != QLA_SUCCESS) { 9824 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9825 "resume I/O from slot/link_reset\n", ha->host_no, 9826 __func__); 9827 } 9828 9829 pci_cleanup_aer_uncorrect_error_status(pdev); 9830 clear_bit(AF_EEH_BUSY, &ha->flags); 9831 } 9832 9833 static const struct pci_error_handlers qla4xxx_err_handler = { 9834 .error_detected = qla4xxx_pci_error_detected, 9835 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9836 .slot_reset = qla4xxx_pci_slot_reset, 9837 .resume = qla4xxx_pci_resume, 9838 }; 9839 9840 static struct pci_device_id qla4xxx_pci_tbl[] = { 9841 { 9842 .vendor = PCI_VENDOR_ID_QLOGIC, 9843 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9844 .subvendor = PCI_ANY_ID, 9845 .subdevice = PCI_ANY_ID, 9846 }, 9847 { 9848 .vendor = PCI_VENDOR_ID_QLOGIC, 9849 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9850 .subvendor = PCI_ANY_ID, 9851 .subdevice = PCI_ANY_ID, 9852 }, 9853 { 9854 .vendor = PCI_VENDOR_ID_QLOGIC, 9855 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9856 .subvendor = PCI_ANY_ID, 9857 .subdevice = PCI_ANY_ID, 9858 }, 9859 { 9860 .vendor = PCI_VENDOR_ID_QLOGIC, 9861 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9862 .subvendor = PCI_ANY_ID, 9863 .subdevice = PCI_ANY_ID, 9864 }, 9865 { 9866 .vendor = PCI_VENDOR_ID_QLOGIC, 9867 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9868 .subvendor = PCI_ANY_ID, 9869 .subdevice = PCI_ANY_ID, 9870 }, 9871 { 9872 .vendor = PCI_VENDOR_ID_QLOGIC, 9873 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9874 .subvendor = PCI_ANY_ID, 9875 .subdevice = PCI_ANY_ID, 9876 }, 9877 {0, 0}, 9878 }; 9879 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9880 9881 static struct pci_driver qla4xxx_pci_driver = { 9882 .name = DRIVER_NAME, 9883 .id_table = qla4xxx_pci_tbl, 9884 .probe = qla4xxx_probe_adapter, 9885 .remove = qla4xxx_remove_adapter, 9886 .err_handler = &qla4xxx_err_handler, 9887 }; 9888 9889 static int __init qla4xxx_module_init(void) 9890 { 9891 int ret; 9892 9893 if (ql4xqfulltracking) 9894 qla4xxx_driver_template.track_queue_depth = 1; 9895 9896 /* Allocate cache for SRBs. */ 9897 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9898 SLAB_HWCACHE_ALIGN, NULL); 9899 if (srb_cachep == NULL) { 9900 printk(KERN_ERR 9901 "%s: Unable to allocate SRB cache..." 9902 "Failing load!\n", DRIVER_NAME); 9903 ret = -ENOMEM; 9904 goto no_srp_cache; 9905 } 9906 9907 /* Derive version string. */ 9908 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9909 if (ql4xextended_error_logging) 9910 strcat(qla4xxx_version_str, "-debug"); 9911 9912 qla4xxx_scsi_transport = 9913 iscsi_register_transport(&qla4xxx_iscsi_transport); 9914 if (!qla4xxx_scsi_transport){ 9915 ret = -ENODEV; 9916 goto release_srb_cache; 9917 } 9918 9919 ret = pci_register_driver(&qla4xxx_pci_driver); 9920 if (ret) 9921 goto unregister_transport; 9922 9923 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9924 return 0; 9925 9926 unregister_transport: 9927 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9928 release_srb_cache: 9929 kmem_cache_destroy(srb_cachep); 9930 no_srp_cache: 9931 return ret; 9932 } 9933 9934 static void __exit qla4xxx_module_exit(void) 9935 { 9936 pci_unregister_driver(&qla4xxx_pci_driver); 9937 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9938 kmem_cache_destroy(srb_cachep); 9939 } 9940 9941 module_init(qla4xxx_module_init); 9942 module_exit(qla4xxx_module_exit); 9943 9944 MODULE_AUTHOR("QLogic Corporation"); 9945 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9946 MODULE_LICENSE("GPL"); 9947 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9948