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