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