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_alloc_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 /* 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 if (!ep) 3207 return -EINVAL; 3208 conn = cls_conn->dd_data; 3209 qla_conn = conn->dd_data; 3210 qla_conn->qla_ep = ep->dd_data; 3211 return 0; 3212 } 3213 3214 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3215 { 3216 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3217 struct iscsi_session *sess; 3218 struct ddb_entry *ddb_entry; 3219 struct scsi_qla_host *ha; 3220 struct dev_db_entry *fw_ddb_entry = NULL; 3221 dma_addr_t fw_ddb_entry_dma; 3222 uint32_t mbx_sts = 0; 3223 int ret = 0; 3224 int status = QLA_SUCCESS; 3225 3226 sess = cls_sess->dd_data; 3227 ddb_entry = sess->dd_data; 3228 ha = ddb_entry->ha; 3229 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3230 cls_sess->sid, cls_conn->cid)); 3231 3232 /* Check if we have matching FW DDB, if yes then do not 3233 * login to this target. This could cause target to logout previous 3234 * connection 3235 */ 3236 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3237 if (ret == QLA_SUCCESS) { 3238 ql4_printk(KERN_INFO, ha, 3239 "Session already exist in FW.\n"); 3240 ret = -EEXIST; 3241 goto exit_conn_start; 3242 } 3243 3244 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3245 &fw_ddb_entry_dma, GFP_KERNEL); 3246 if (!fw_ddb_entry) { 3247 ql4_printk(KERN_ERR, ha, 3248 "%s: Unable to allocate dma buffer\n", __func__); 3249 ret = -ENOMEM; 3250 goto exit_conn_start; 3251 } 3252 3253 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3254 if (ret) { 3255 /* If iscsid is stopped and started then no need to do 3256 * set param again since ddb state will be already 3257 * active and FW does not allow set ddb to an 3258 * active session. 3259 */ 3260 if (mbx_sts) 3261 if (ddb_entry->fw_ddb_device_state == 3262 DDB_DS_SESSION_ACTIVE) { 3263 ddb_entry->unblock_sess(ddb_entry->sess); 3264 goto exit_set_param; 3265 } 3266 3267 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3268 __func__, ddb_entry->fw_ddb_index); 3269 goto exit_conn_start; 3270 } 3271 3272 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3273 if (status == QLA_ERROR) { 3274 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3275 sess->targetname); 3276 ret = -EINVAL; 3277 goto exit_conn_start; 3278 } 3279 3280 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3281 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3282 3283 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3284 ddb_entry->fw_ddb_device_state)); 3285 3286 exit_set_param: 3287 ret = 0; 3288 3289 exit_conn_start: 3290 if (fw_ddb_entry) 3291 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3292 fw_ddb_entry, fw_ddb_entry_dma); 3293 return ret; 3294 } 3295 3296 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3297 { 3298 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3299 struct iscsi_session *sess; 3300 struct scsi_qla_host *ha; 3301 struct ddb_entry *ddb_entry; 3302 int options; 3303 3304 sess = cls_sess->dd_data; 3305 ddb_entry = sess->dd_data; 3306 ha = ddb_entry->ha; 3307 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, 3308 cls_conn->cid)); 3309 3310 options = LOGOUT_OPTION_CLOSE_SESSION; 3311 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3312 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3313 } 3314 3315 static void qla4xxx_task_work(struct work_struct *wdata) 3316 { 3317 struct ql4_task_data *task_data; 3318 struct scsi_qla_host *ha; 3319 struct passthru_status *sts; 3320 struct iscsi_task *task; 3321 struct iscsi_hdr *hdr; 3322 uint8_t *data; 3323 uint32_t data_len; 3324 struct iscsi_conn *conn; 3325 int hdr_len; 3326 itt_t itt; 3327 3328 task_data = container_of(wdata, struct ql4_task_data, task_work); 3329 ha = task_data->ha; 3330 task = task_data->task; 3331 sts = &task_data->sts; 3332 hdr_len = sizeof(struct iscsi_hdr); 3333 3334 DEBUG3(printk(KERN_INFO "Status returned\n")); 3335 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3336 DEBUG3(printk(KERN_INFO "Response buffer")); 3337 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3338 3339 conn = task->conn; 3340 3341 switch (sts->completionStatus) { 3342 case PASSTHRU_STATUS_COMPLETE: 3343 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3344 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3345 itt = sts->handle; 3346 hdr->itt = itt; 3347 data = task_data->resp_buffer + hdr_len; 3348 data_len = task_data->resp_len - hdr_len; 3349 iscsi_complete_pdu(conn, hdr, data, data_len); 3350 break; 3351 default: 3352 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3353 sts->completionStatus); 3354 break; 3355 } 3356 return; 3357 } 3358 3359 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3360 { 3361 struct ql4_task_data *task_data; 3362 struct iscsi_session *sess; 3363 struct ddb_entry *ddb_entry; 3364 struct scsi_qla_host *ha; 3365 int hdr_len; 3366 3367 sess = task->conn->session; 3368 ddb_entry = sess->dd_data; 3369 ha = ddb_entry->ha; 3370 task_data = task->dd_data; 3371 memset(task_data, 0, sizeof(struct ql4_task_data)); 3372 3373 if (task->sc) { 3374 ql4_printk(KERN_INFO, ha, 3375 "%s: SCSI Commands not implemented\n", __func__); 3376 return -EINVAL; 3377 } 3378 3379 hdr_len = sizeof(struct iscsi_hdr); 3380 task_data->ha = ha; 3381 task_data->task = task; 3382 3383 if (task->data_count) { 3384 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3385 task->data_count, 3386 DMA_TO_DEVICE); 3387 } 3388 3389 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3390 __func__, task->conn->max_recv_dlength, hdr_len)); 3391 3392 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3393 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3394 task_data->resp_len, 3395 &task_data->resp_dma, 3396 GFP_ATOMIC); 3397 if (!task_data->resp_buffer) 3398 goto exit_alloc_pdu; 3399 3400 task_data->req_len = task->data_count + hdr_len; 3401 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3402 task_data->req_len, 3403 &task_data->req_dma, 3404 GFP_ATOMIC); 3405 if (!task_data->req_buffer) 3406 goto exit_alloc_pdu; 3407 3408 task->hdr = task_data->req_buffer; 3409 3410 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3411 3412 return 0; 3413 3414 exit_alloc_pdu: 3415 if (task_data->resp_buffer) 3416 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3417 task_data->resp_buffer, task_data->resp_dma); 3418 3419 if (task_data->req_buffer) 3420 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3421 task_data->req_buffer, task_data->req_dma); 3422 return -ENOMEM; 3423 } 3424 3425 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3426 { 3427 struct ql4_task_data *task_data; 3428 struct iscsi_session *sess; 3429 struct ddb_entry *ddb_entry; 3430 struct scsi_qla_host *ha; 3431 int hdr_len; 3432 3433 hdr_len = sizeof(struct iscsi_hdr); 3434 sess = task->conn->session; 3435 ddb_entry = sess->dd_data; 3436 ha = ddb_entry->ha; 3437 task_data = task->dd_data; 3438 3439 if (task->data_count) { 3440 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3441 task->data_count, DMA_TO_DEVICE); 3442 } 3443 3444 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3445 __func__, task->conn->max_recv_dlength, hdr_len)); 3446 3447 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3448 task_data->resp_buffer, task_data->resp_dma); 3449 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3450 task_data->req_buffer, task_data->req_dma); 3451 return; 3452 } 3453 3454 static int qla4xxx_task_xmit(struct iscsi_task *task) 3455 { 3456 struct scsi_cmnd *sc = task->sc; 3457 struct iscsi_session *sess = task->conn->session; 3458 struct ddb_entry *ddb_entry = sess->dd_data; 3459 struct scsi_qla_host *ha = ddb_entry->ha; 3460 3461 if (!sc) 3462 return qla4xxx_send_passthru0(task); 3463 3464 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3465 __func__); 3466 return -ENOSYS; 3467 } 3468 3469 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3470 struct iscsi_bus_flash_conn *conn, 3471 struct dev_db_entry *fw_ddb_entry) 3472 { 3473 unsigned long options = 0; 3474 int rc = 0; 3475 3476 options = le16_to_cpu(fw_ddb_entry->options); 3477 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3478 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3479 rc = iscsi_switch_str_param(&sess->portal_type, 3480 PORTAL_TYPE_IPV6); 3481 if (rc) 3482 goto exit_copy; 3483 } else { 3484 rc = iscsi_switch_str_param(&sess->portal_type, 3485 PORTAL_TYPE_IPV4); 3486 if (rc) 3487 goto exit_copy; 3488 } 3489 3490 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3491 &options); 3492 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3493 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3494 3495 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3496 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3497 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3498 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3499 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3500 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3501 &options); 3502 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3503 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3504 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3505 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3506 &options); 3507 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3508 sess->discovery_auth_optional = 3509 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3510 if (test_bit(ISCSIOPT_ERL1, &options)) 3511 sess->erl |= BIT_1; 3512 if (test_bit(ISCSIOPT_ERL0, &options)) 3513 sess->erl |= BIT_0; 3514 3515 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3516 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3517 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3518 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3519 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3520 conn->tcp_timer_scale |= BIT_3; 3521 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3522 conn->tcp_timer_scale |= BIT_2; 3523 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3524 conn->tcp_timer_scale |= BIT_1; 3525 3526 conn->tcp_timer_scale >>= 1; 3527 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3528 3529 options = le16_to_cpu(fw_ddb_entry->ip_options); 3530 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3531 3532 conn->max_recv_dlength = BYTE_UNITS * 3533 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3534 conn->max_xmit_dlength = BYTE_UNITS * 3535 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3536 sess->first_burst = BYTE_UNITS * 3537 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3538 sess->max_burst = BYTE_UNITS * 3539 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3540 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3541 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3542 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3543 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3544 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3545 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3546 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3547 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3548 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3549 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3550 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3551 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3552 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3553 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3554 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3555 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3556 3557 sess->default_taskmgmt_timeout = 3558 le16_to_cpu(fw_ddb_entry->def_timeout); 3559 conn->port = le16_to_cpu(fw_ddb_entry->port); 3560 3561 options = le16_to_cpu(fw_ddb_entry->options); 3562 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3563 if (!conn->ipaddress) { 3564 rc = -ENOMEM; 3565 goto exit_copy; 3566 } 3567 3568 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3569 if (!conn->redirect_ipaddr) { 3570 rc = -ENOMEM; 3571 goto exit_copy; 3572 } 3573 3574 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3575 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3576 3577 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3578 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3579 3580 conn->link_local_ipv6_addr = kmemdup( 3581 fw_ddb_entry->link_local_ipv6_addr, 3582 IPv6_ADDR_LEN, GFP_KERNEL); 3583 if (!conn->link_local_ipv6_addr) { 3584 rc = -ENOMEM; 3585 goto exit_copy; 3586 } 3587 } else { 3588 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3589 } 3590 3591 if (fw_ddb_entry->iscsi_name[0]) { 3592 rc = iscsi_switch_str_param(&sess->targetname, 3593 (char *)fw_ddb_entry->iscsi_name); 3594 if (rc) 3595 goto exit_copy; 3596 } 3597 3598 if (fw_ddb_entry->iscsi_alias[0]) { 3599 rc = iscsi_switch_str_param(&sess->targetalias, 3600 (char *)fw_ddb_entry->iscsi_alias); 3601 if (rc) 3602 goto exit_copy; 3603 } 3604 3605 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3606 3607 exit_copy: 3608 return rc; 3609 } 3610 3611 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3612 struct iscsi_bus_flash_conn *conn, 3613 struct dev_db_entry *fw_ddb_entry) 3614 { 3615 uint16_t options; 3616 int rc = 0; 3617 3618 options = le16_to_cpu(fw_ddb_entry->options); 3619 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3620 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3621 options |= BIT_8; 3622 else 3623 options &= ~BIT_8; 3624 3625 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3626 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3627 SET_BITVAL(sess->entry_state, options, BIT_3); 3628 fw_ddb_entry->options = cpu_to_le16(options); 3629 3630 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3631 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3632 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3633 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3634 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3635 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3636 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3637 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3638 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3639 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3640 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3641 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3642 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3643 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3644 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3645 3646 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3647 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3648 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3649 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3650 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3651 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3652 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3653 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3654 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3655 3656 options = le16_to_cpu(fw_ddb_entry->ip_options); 3657 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3658 fw_ddb_entry->ip_options = cpu_to_le16(options); 3659 3660 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3661 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3662 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3663 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3664 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3665 fw_ddb_entry->iscsi_first_burst_len = 3666 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3667 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3668 BYTE_UNITS); 3669 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3670 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3671 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3672 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3673 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3674 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3675 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3676 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3677 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3678 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3679 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3680 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3681 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3682 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3683 fw_ddb_entry->port = cpu_to_le16(conn->port); 3684 fw_ddb_entry->def_timeout = 3685 cpu_to_le16(sess->default_taskmgmt_timeout); 3686 3687 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3688 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3689 else 3690 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3691 3692 if (conn->ipaddress) 3693 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3694 sizeof(fw_ddb_entry->ip_addr)); 3695 3696 if (conn->redirect_ipaddr) 3697 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3698 sizeof(fw_ddb_entry->tgt_addr)); 3699 3700 if (conn->link_local_ipv6_addr) 3701 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3702 conn->link_local_ipv6_addr, 3703 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3704 3705 if (sess->targetname) 3706 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3707 sizeof(fw_ddb_entry->iscsi_name)); 3708 3709 if (sess->targetalias) 3710 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3711 sizeof(fw_ddb_entry->iscsi_alias)); 3712 3713 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3714 3715 return rc; 3716 } 3717 3718 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3719 struct iscsi_session *sess, 3720 struct dev_db_entry *fw_ddb_entry) 3721 { 3722 unsigned long options = 0; 3723 uint16_t ddb_link; 3724 uint16_t disc_parent; 3725 char ip_addr[DDB_IPADDR_LEN]; 3726 3727 options = le16_to_cpu(fw_ddb_entry->options); 3728 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3729 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3730 &options); 3731 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3732 3733 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3734 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3735 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3736 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3737 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3738 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3739 &options); 3740 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3741 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3742 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3743 &options); 3744 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3745 sess->discovery_auth_optional = 3746 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3747 if (test_bit(ISCSIOPT_ERL1, &options)) 3748 sess->erl |= BIT_1; 3749 if (test_bit(ISCSIOPT_ERL0, &options)) 3750 sess->erl |= BIT_0; 3751 3752 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3753 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3754 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3755 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3756 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3757 conn->tcp_timer_scale |= BIT_3; 3758 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3759 conn->tcp_timer_scale |= BIT_2; 3760 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3761 conn->tcp_timer_scale |= BIT_1; 3762 3763 conn->tcp_timer_scale >>= 1; 3764 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3765 3766 options = le16_to_cpu(fw_ddb_entry->ip_options); 3767 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3768 3769 conn->max_recv_dlength = BYTE_UNITS * 3770 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3771 conn->max_xmit_dlength = BYTE_UNITS * 3772 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3773 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3774 sess->first_burst = BYTE_UNITS * 3775 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3776 sess->max_burst = BYTE_UNITS * 3777 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3778 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3779 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3780 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3781 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3782 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3783 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3784 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3785 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3786 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3787 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3788 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3789 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3790 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3791 3792 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3793 if (ddb_link == DDB_ISNS) 3794 disc_parent = ISCSI_DISC_PARENT_ISNS; 3795 else if (ddb_link == DDB_NO_LINK) 3796 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3797 else if (ddb_link < MAX_DDB_ENTRIES) 3798 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3799 else 3800 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3801 3802 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3803 iscsi_get_discovery_parent_name(disc_parent), 0); 3804 3805 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3806 (char *)fw_ddb_entry->iscsi_alias, 0); 3807 3808 options = le16_to_cpu(fw_ddb_entry->options); 3809 if (options & DDB_OPT_IPV6_DEVICE) { 3810 memset(ip_addr, 0, sizeof(ip_addr)); 3811 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3812 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3813 (char *)ip_addr, 0); 3814 } 3815 } 3816 3817 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3818 struct dev_db_entry *fw_ddb_entry, 3819 struct iscsi_cls_session *cls_sess, 3820 struct iscsi_cls_conn *cls_conn) 3821 { 3822 int buflen = 0; 3823 struct iscsi_session *sess; 3824 struct ddb_entry *ddb_entry; 3825 struct ql4_chap_table chap_tbl; 3826 struct iscsi_conn *conn; 3827 char ip_addr[DDB_IPADDR_LEN]; 3828 uint16_t options = 0; 3829 3830 sess = cls_sess->dd_data; 3831 ddb_entry = sess->dd_data; 3832 conn = cls_conn->dd_data; 3833 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3834 3835 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3836 3837 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3838 3839 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3840 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3841 3842 memset(ip_addr, 0, sizeof(ip_addr)); 3843 options = le16_to_cpu(fw_ddb_entry->options); 3844 if (options & DDB_OPT_IPV6_DEVICE) { 3845 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3846 3847 memset(ip_addr, 0, sizeof(ip_addr)); 3848 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3849 } else { 3850 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3851 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3852 } 3853 3854 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3855 (char *)ip_addr, buflen); 3856 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3857 (char *)fw_ddb_entry->iscsi_name, buflen); 3858 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3859 (char *)ha->name_string, buflen); 3860 3861 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3862 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3863 chap_tbl.secret, 3864 ddb_entry->chap_tbl_idx)) { 3865 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3866 (char *)chap_tbl.name, 3867 strlen((char *)chap_tbl.name)); 3868 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3869 (char *)chap_tbl.secret, 3870 chap_tbl.secret_len); 3871 } 3872 } 3873 } 3874 3875 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3876 struct ddb_entry *ddb_entry) 3877 { 3878 struct iscsi_cls_session *cls_sess; 3879 struct iscsi_cls_conn *cls_conn; 3880 uint32_t ddb_state; 3881 dma_addr_t fw_ddb_entry_dma; 3882 struct dev_db_entry *fw_ddb_entry; 3883 3884 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3885 &fw_ddb_entry_dma, GFP_KERNEL); 3886 if (!fw_ddb_entry) { 3887 ql4_printk(KERN_ERR, ha, 3888 "%s: Unable to allocate dma buffer\n", __func__); 3889 goto exit_session_conn_fwddb_param; 3890 } 3891 3892 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3893 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3894 NULL, NULL, NULL) == QLA_ERROR) { 3895 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3896 "get_ddb_entry for fw_ddb_index %d\n", 3897 ha->host_no, __func__, 3898 ddb_entry->fw_ddb_index)); 3899 goto exit_session_conn_fwddb_param; 3900 } 3901 3902 cls_sess = ddb_entry->sess; 3903 3904 cls_conn = ddb_entry->conn; 3905 3906 /* Update params */ 3907 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3908 3909 exit_session_conn_fwddb_param: 3910 if (fw_ddb_entry) 3911 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3912 fw_ddb_entry, fw_ddb_entry_dma); 3913 } 3914 3915 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3916 struct ddb_entry *ddb_entry) 3917 { 3918 struct iscsi_cls_session *cls_sess; 3919 struct iscsi_cls_conn *cls_conn; 3920 struct iscsi_session *sess; 3921 struct iscsi_conn *conn; 3922 uint32_t ddb_state; 3923 dma_addr_t fw_ddb_entry_dma; 3924 struct dev_db_entry *fw_ddb_entry; 3925 3926 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3927 &fw_ddb_entry_dma, GFP_KERNEL); 3928 if (!fw_ddb_entry) { 3929 ql4_printk(KERN_ERR, ha, 3930 "%s: Unable to allocate dma buffer\n", __func__); 3931 goto exit_session_conn_param; 3932 } 3933 3934 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3935 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3936 NULL, NULL, NULL) == QLA_ERROR) { 3937 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3938 "get_ddb_entry for fw_ddb_index %d\n", 3939 ha->host_no, __func__, 3940 ddb_entry->fw_ddb_index)); 3941 goto exit_session_conn_param; 3942 } 3943 3944 cls_sess = ddb_entry->sess; 3945 sess = cls_sess->dd_data; 3946 3947 cls_conn = ddb_entry->conn; 3948 conn = cls_conn->dd_data; 3949 3950 /* Update timers after login */ 3951 ddb_entry->default_relogin_timeout = 3952 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3953 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3954 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3955 ddb_entry->default_time2wait = 3956 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3957 3958 /* Update params */ 3959 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3960 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3961 3962 memcpy(sess->initiatorname, ha->name_string, 3963 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 3964 3965 exit_session_conn_param: 3966 if (fw_ddb_entry) 3967 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3968 fw_ddb_entry, fw_ddb_entry_dma); 3969 } 3970 3971 /* 3972 * Timer routines 3973 */ 3974 static void qla4xxx_timer(struct timer_list *t); 3975 3976 static void qla4xxx_start_timer(struct scsi_qla_host *ha, 3977 unsigned long interval) 3978 { 3979 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 3980 __func__, ha->host->host_no)); 3981 timer_setup(&ha->timer, qla4xxx_timer, 0); 3982 ha->timer.expires = jiffies + interval * HZ; 3983 add_timer(&ha->timer); 3984 ha->timer_active = 1; 3985 } 3986 3987 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 3988 { 3989 del_timer_sync(&ha->timer); 3990 ha->timer_active = 0; 3991 } 3992 3993 /*** 3994 * qla4xxx_mark_device_missing - blocks the session 3995 * @cls_session: Pointer to the session to be blocked 3996 * @ddb_entry: Pointer to device database entry 3997 * 3998 * This routine marks a device missing and close connection. 3999 **/ 4000 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 4001 { 4002 iscsi_block_session(cls_session); 4003 } 4004 4005 /** 4006 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 4007 * @ha: Pointer to host adapter structure. 4008 * 4009 * This routine marks a device missing and resets the relogin retry count. 4010 **/ 4011 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 4012 { 4013 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 4014 } 4015 4016 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 4017 struct ddb_entry *ddb_entry, 4018 struct scsi_cmnd *cmd) 4019 { 4020 struct srb *srb; 4021 4022 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 4023 if (!srb) 4024 return srb; 4025 4026 kref_init(&srb->srb_ref); 4027 srb->ha = ha; 4028 srb->ddb = ddb_entry; 4029 srb->cmd = cmd; 4030 srb->flags = 0; 4031 CMD_SP(cmd) = (void *)srb; 4032 4033 return srb; 4034 } 4035 4036 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4037 { 4038 struct scsi_cmnd *cmd = srb->cmd; 4039 4040 if (srb->flags & SRB_DMA_VALID) { 4041 scsi_dma_unmap(cmd); 4042 srb->flags &= ~SRB_DMA_VALID; 4043 } 4044 CMD_SP(cmd) = NULL; 4045 } 4046 4047 void qla4xxx_srb_compl(struct kref *ref) 4048 { 4049 struct srb *srb = container_of(ref, struct srb, srb_ref); 4050 struct scsi_cmnd *cmd = srb->cmd; 4051 struct scsi_qla_host *ha = srb->ha; 4052 4053 qla4xxx_srb_free_dma(ha, srb); 4054 4055 mempool_free(srb, ha->srb_mempool); 4056 4057 cmd->scsi_done(cmd); 4058 } 4059 4060 /** 4061 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4062 * @host: scsi host 4063 * @cmd: Pointer to Linux's SCSI command structure 4064 * 4065 * Remarks: 4066 * This routine is invoked by Linux to send a SCSI command to the driver. 4067 * The mid-level driver tries to ensure that queuecommand never gets 4068 * invoked concurrently with itself or the interrupt handler (although 4069 * the interrupt handler may call this routine as part of request- 4070 * completion handling). Unfortunely, it sometimes calls the scheduler 4071 * in interrupt context which is a big NO! NO!. 4072 **/ 4073 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4074 { 4075 struct scsi_qla_host *ha = to_qla_host(host); 4076 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4077 struct iscsi_cls_session *sess = ddb_entry->sess; 4078 struct srb *srb; 4079 int rval; 4080 4081 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4082 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4083 cmd->result = DID_NO_CONNECT << 16; 4084 else 4085 cmd->result = DID_REQUEUE << 16; 4086 goto qc_fail_command; 4087 } 4088 4089 if (!sess) { 4090 cmd->result = DID_IMM_RETRY << 16; 4091 goto qc_fail_command; 4092 } 4093 4094 rval = iscsi_session_chkready(sess); 4095 if (rval) { 4096 cmd->result = rval; 4097 goto qc_fail_command; 4098 } 4099 4100 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4101 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4102 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4103 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4104 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4105 !test_bit(AF_ONLINE, &ha->flags) || 4106 !test_bit(AF_LINK_UP, &ha->flags) || 4107 test_bit(AF_LOOPBACK, &ha->flags) || 4108 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4109 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4110 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4111 goto qc_host_busy; 4112 4113 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4114 if (!srb) 4115 goto qc_host_busy; 4116 4117 rval = qla4xxx_send_command_to_isp(ha, srb); 4118 if (rval != QLA_SUCCESS) 4119 goto qc_host_busy_free_sp; 4120 4121 return 0; 4122 4123 qc_host_busy_free_sp: 4124 qla4xxx_srb_free_dma(ha, srb); 4125 mempool_free(srb, ha->srb_mempool); 4126 4127 qc_host_busy: 4128 return SCSI_MLQUEUE_HOST_BUSY; 4129 4130 qc_fail_command: 4131 cmd->scsi_done(cmd); 4132 4133 return 0; 4134 } 4135 4136 /** 4137 * qla4xxx_mem_free - frees memory allocated to adapter 4138 * @ha: Pointer to host adapter structure. 4139 * 4140 * Frees memory previously allocated by qla4xxx_mem_alloc 4141 **/ 4142 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4143 { 4144 if (ha->queues) 4145 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4146 ha->queues_dma); 4147 4148 if (ha->fw_dump) 4149 vfree(ha->fw_dump); 4150 4151 ha->queues_len = 0; 4152 ha->queues = NULL; 4153 ha->queues_dma = 0; 4154 ha->request_ring = NULL; 4155 ha->request_dma = 0; 4156 ha->response_ring = NULL; 4157 ha->response_dma = 0; 4158 ha->shadow_regs = NULL; 4159 ha->shadow_regs_dma = 0; 4160 ha->fw_dump = NULL; 4161 ha->fw_dump_size = 0; 4162 4163 /* Free srb pool. */ 4164 mempool_destroy(ha->srb_mempool); 4165 ha->srb_mempool = NULL; 4166 4167 dma_pool_destroy(ha->chap_dma_pool); 4168 4169 if (ha->chap_list) 4170 vfree(ha->chap_list); 4171 ha->chap_list = NULL; 4172 4173 dma_pool_destroy(ha->fw_ddb_dma_pool); 4174 4175 /* release io space registers */ 4176 if (is_qla8022(ha)) { 4177 if (ha->nx_pcibase) 4178 iounmap( 4179 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4180 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4181 if (ha->nx_pcibase) 4182 iounmap( 4183 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4184 } else if (ha->reg) { 4185 iounmap(ha->reg); 4186 } 4187 4188 if (ha->reset_tmplt.buff) 4189 vfree(ha->reset_tmplt.buff); 4190 4191 pci_release_regions(ha->pdev); 4192 } 4193 4194 /** 4195 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4196 * @ha: Pointer to host adapter structure 4197 * 4198 * Allocates DMA memory for request and response queues. Also allocates memory 4199 * for srbs. 4200 **/ 4201 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4202 { 4203 unsigned long align; 4204 4205 /* Allocate contiguous block of DMA memory for queues. */ 4206 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4207 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4208 sizeof(struct shadow_regs) + 4209 MEM_ALIGN_VALUE + 4210 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4211 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 4212 &ha->queues_dma, GFP_KERNEL); 4213 if (ha->queues == NULL) { 4214 ql4_printk(KERN_WARNING, ha, 4215 "Memory Allocation failed - queues.\n"); 4216 4217 goto mem_alloc_error_exit; 4218 } 4219 4220 /* 4221 * As per RISC alignment requirements -- the bus-address must be a 4222 * multiple of the request-ring size (in bytes). 4223 */ 4224 align = 0; 4225 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4226 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4227 (MEM_ALIGN_VALUE - 1)); 4228 4229 /* Update request and response queue pointers. */ 4230 ha->request_dma = ha->queues_dma + align; 4231 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4232 ha->response_dma = ha->queues_dma + align + 4233 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4234 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4235 (REQUEST_QUEUE_DEPTH * 4236 QUEUE_SIZE)); 4237 ha->shadow_regs_dma = ha->queues_dma + align + 4238 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4239 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4240 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4241 (REQUEST_QUEUE_DEPTH * 4242 QUEUE_SIZE) + 4243 (RESPONSE_QUEUE_DEPTH * 4244 QUEUE_SIZE)); 4245 4246 /* Allocate memory for srb pool. */ 4247 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4248 mempool_free_slab, srb_cachep); 4249 if (ha->srb_mempool == NULL) { 4250 ql4_printk(KERN_WARNING, ha, 4251 "Memory Allocation failed - SRB Pool.\n"); 4252 4253 goto mem_alloc_error_exit; 4254 } 4255 4256 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4257 CHAP_DMA_BLOCK_SIZE, 8, 0); 4258 4259 if (ha->chap_dma_pool == NULL) { 4260 ql4_printk(KERN_WARNING, ha, 4261 "%s: chap_dma_pool allocation failed..\n", __func__); 4262 goto mem_alloc_error_exit; 4263 } 4264 4265 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4266 DDB_DMA_BLOCK_SIZE, 8, 0); 4267 4268 if (ha->fw_ddb_dma_pool == NULL) { 4269 ql4_printk(KERN_WARNING, ha, 4270 "%s: fw_ddb_dma_pool allocation failed..\n", 4271 __func__); 4272 goto mem_alloc_error_exit; 4273 } 4274 4275 return QLA_SUCCESS; 4276 4277 mem_alloc_error_exit: 4278 return QLA_ERROR; 4279 } 4280 4281 /** 4282 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4283 * @ha: adapter block pointer. 4284 * 4285 * Note: The caller should not hold the idc lock. 4286 **/ 4287 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4288 { 4289 uint32_t temp, temp_state, temp_val; 4290 int status = QLA_SUCCESS; 4291 4292 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4293 4294 temp_state = qla82xx_get_temp_state(temp); 4295 temp_val = qla82xx_get_temp_val(temp); 4296 4297 if (temp_state == QLA82XX_TEMP_PANIC) { 4298 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4299 " exceeds maximum allowed. Hardware has been shut" 4300 " down.\n", temp_val); 4301 status = QLA_ERROR; 4302 } else if (temp_state == QLA82XX_TEMP_WARN) { 4303 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4304 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4305 " degrees C exceeds operating range." 4306 " Immediate action needed.\n", temp_val); 4307 } else { 4308 if (ha->temperature == QLA82XX_TEMP_WARN) 4309 ql4_printk(KERN_INFO, ha, "Device temperature is" 4310 " now %d degrees C in normal range.\n", 4311 temp_val); 4312 } 4313 ha->temperature = temp_state; 4314 return status; 4315 } 4316 4317 /** 4318 * qla4_8xxx_check_fw_alive - Check firmware health 4319 * @ha: Pointer to host adapter structure. 4320 * 4321 * Context: Interrupt 4322 **/ 4323 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4324 { 4325 uint32_t fw_heartbeat_counter; 4326 int status = QLA_SUCCESS; 4327 4328 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4329 QLA8XXX_PEG_ALIVE_COUNTER); 4330 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4331 if (fw_heartbeat_counter == 0xffffffff) { 4332 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4333 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4334 ha->host_no, __func__)); 4335 return status; 4336 } 4337 4338 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4339 ha->seconds_since_last_heartbeat++; 4340 /* FW not alive after 2 seconds */ 4341 if (ha->seconds_since_last_heartbeat == 2) { 4342 ha->seconds_since_last_heartbeat = 0; 4343 qla4_8xxx_dump_peg_reg(ha); 4344 status = QLA_ERROR; 4345 } 4346 } else 4347 ha->seconds_since_last_heartbeat = 0; 4348 4349 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4350 return status; 4351 } 4352 4353 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4354 { 4355 uint32_t halt_status; 4356 int halt_status_unrecoverable = 0; 4357 4358 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4359 4360 if (is_qla8022(ha)) { 4361 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4362 __func__); 4363 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4364 CRB_NIU_XG_PAUSE_CTL_P0 | 4365 CRB_NIU_XG_PAUSE_CTL_P1); 4366 4367 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4368 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4369 __func__); 4370 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4371 halt_status_unrecoverable = 1; 4372 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4373 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4374 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4375 __func__); 4376 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4377 halt_status_unrecoverable = 1; 4378 } 4379 4380 /* 4381 * Since we cannot change dev_state in interrupt context, 4382 * set appropriate DPC flag then wakeup DPC 4383 */ 4384 if (halt_status_unrecoverable) { 4385 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4386 } else { 4387 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4388 __func__); 4389 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4390 } 4391 qla4xxx_mailbox_premature_completion(ha); 4392 qla4xxx_wake_dpc(ha); 4393 } 4394 4395 /** 4396 * qla4_8xxx_watchdog - Poll dev state 4397 * @ha: Pointer to host adapter structure. 4398 * 4399 * Context: Interrupt 4400 **/ 4401 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4402 { 4403 uint32_t dev_state; 4404 uint32_t idc_ctrl; 4405 4406 if (is_qla8032(ha) && 4407 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4408 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4409 __func__, ha->func_num); 4410 4411 /* don't poll if reset is going on */ 4412 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4413 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4414 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4415 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4416 4417 if (qla4_8xxx_check_temp(ha)) { 4418 if (is_qla8022(ha)) { 4419 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4420 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4421 CRB_NIU_XG_PAUSE_CTL_P0 | 4422 CRB_NIU_XG_PAUSE_CTL_P1); 4423 } 4424 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4425 qla4xxx_wake_dpc(ha); 4426 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4427 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4428 4429 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4430 __func__); 4431 4432 if (is_qla8032(ha) || is_qla8042(ha)) { 4433 idc_ctrl = qla4_83xx_rd_reg(ha, 4434 QLA83XX_IDC_DRV_CTRL); 4435 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4436 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4437 __func__); 4438 qla4xxx_mailbox_premature_completion( 4439 ha); 4440 } 4441 } 4442 4443 if ((is_qla8032(ha) || is_qla8042(ha)) || 4444 (is_qla8022(ha) && !ql4xdontresethba)) { 4445 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4446 qla4xxx_wake_dpc(ha); 4447 } 4448 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4449 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4450 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4451 __func__); 4452 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4453 qla4xxx_wake_dpc(ha); 4454 } else { 4455 /* Check firmware health */ 4456 if (qla4_8xxx_check_fw_alive(ha)) 4457 qla4_8xxx_process_fw_error(ha); 4458 } 4459 } 4460 } 4461 4462 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4463 { 4464 struct iscsi_session *sess; 4465 struct ddb_entry *ddb_entry; 4466 struct scsi_qla_host *ha; 4467 4468 sess = cls_sess->dd_data; 4469 ddb_entry = sess->dd_data; 4470 ha = ddb_entry->ha; 4471 4472 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4473 return; 4474 4475 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4476 !iscsi_is_session_online(cls_sess)) { 4477 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4478 INVALID_ENTRY) { 4479 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4480 0) { 4481 atomic_set(&ddb_entry->retry_relogin_timer, 4482 INVALID_ENTRY); 4483 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4484 set_bit(DF_RELOGIN, &ddb_entry->flags); 4485 DEBUG2(ql4_printk(KERN_INFO, ha, 4486 "%s: index [%d] login device\n", 4487 __func__, ddb_entry->fw_ddb_index)); 4488 } else 4489 atomic_dec(&ddb_entry->retry_relogin_timer); 4490 } 4491 } 4492 4493 /* Wait for relogin to timeout */ 4494 if (atomic_read(&ddb_entry->relogin_timer) && 4495 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4496 /* 4497 * If the relogin times out and the device is 4498 * still NOT ONLINE then try and relogin again. 4499 */ 4500 if (!iscsi_is_session_online(cls_sess)) { 4501 /* Reset retry relogin timer */ 4502 atomic_inc(&ddb_entry->relogin_retry_count); 4503 DEBUG2(ql4_printk(KERN_INFO, ha, 4504 "%s: index[%d] relogin timed out-retrying" 4505 " relogin (%d), retry (%d)\n", __func__, 4506 ddb_entry->fw_ddb_index, 4507 atomic_read(&ddb_entry->relogin_retry_count), 4508 ddb_entry->default_time2wait + 4)); 4509 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4510 atomic_set(&ddb_entry->retry_relogin_timer, 4511 ddb_entry->default_time2wait + 4); 4512 } 4513 } 4514 } 4515 4516 /** 4517 * qla4xxx_timer - checks every second for work to do. 4518 * @ha: Pointer to host adapter structure. 4519 **/ 4520 static void qla4xxx_timer(struct timer_list *t) 4521 { 4522 struct scsi_qla_host *ha = from_timer(ha, t, timer); 4523 int start_dpc = 0; 4524 uint16_t w; 4525 4526 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4527 4528 /* If we are in the middle of AER/EEH processing 4529 * skip any processing and reschedule the timer 4530 */ 4531 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4532 mod_timer(&ha->timer, jiffies + HZ); 4533 return; 4534 } 4535 4536 /* Hardware read to trigger an EEH error during mailbox waits. */ 4537 if (!pci_channel_offline(ha->pdev)) 4538 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4539 4540 if (is_qla80XX(ha)) 4541 qla4_8xxx_watchdog(ha); 4542 4543 if (is_qla40XX(ha)) { 4544 /* Check for heartbeat interval. */ 4545 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4546 ha->heartbeat_interval != 0) { 4547 ha->seconds_since_last_heartbeat++; 4548 if (ha->seconds_since_last_heartbeat > 4549 ha->heartbeat_interval + 2) 4550 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4551 } 4552 } 4553 4554 /* Process any deferred work. */ 4555 if (!list_empty(&ha->work_list)) 4556 start_dpc++; 4557 4558 /* Wakeup the dpc routine for this adapter, if needed. */ 4559 if (start_dpc || 4560 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4561 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4562 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4563 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4564 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4565 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4566 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4567 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4568 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4569 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) || 4570 test_bit(DPC_AEN, &ha->dpc_flags)) { 4571 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4572 " - dpc flags = 0x%lx\n", 4573 ha->host_no, __func__, ha->dpc_flags)); 4574 qla4xxx_wake_dpc(ha); 4575 } 4576 4577 /* Reschedule timer thread to call us back in one second */ 4578 mod_timer(&ha->timer, jiffies + HZ); 4579 4580 DEBUG2(ha->seconds_since_last_intr++); 4581 } 4582 4583 /** 4584 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4585 * @ha: Pointer to host adapter structure. 4586 * 4587 * This routine stalls the driver until all outstanding commands are returned. 4588 * Caller must release the Hardware Lock prior to calling this routine. 4589 **/ 4590 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4591 { 4592 uint32_t index = 0; 4593 unsigned long flags; 4594 struct scsi_cmnd *cmd; 4595 unsigned long wtime; 4596 uint32_t wtmo; 4597 4598 if (is_qla40XX(ha)) 4599 wtmo = WAIT_CMD_TOV; 4600 else 4601 wtmo = ha->nx_reset_timeout / 2; 4602 4603 wtime = jiffies + (wtmo * HZ); 4604 4605 DEBUG2(ql4_printk(KERN_INFO, ha, 4606 "Wait up to %u seconds for cmds to complete\n", 4607 wtmo)); 4608 4609 while (!time_after_eq(jiffies, wtime)) { 4610 spin_lock_irqsave(&ha->hardware_lock, flags); 4611 /* Find a command that hasn't completed. */ 4612 for (index = 0; index < ha->host->can_queue; index++) { 4613 cmd = scsi_host_find_tag(ha->host, index); 4614 /* 4615 * We cannot just check if the index is valid, 4616 * becase if we are run from the scsi eh, then 4617 * the scsi/block layer is going to prevent 4618 * the tag from being released. 4619 */ 4620 if (cmd != NULL && CMD_SP(cmd)) 4621 break; 4622 } 4623 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4624 4625 /* If No Commands are pending, wait is complete */ 4626 if (index == ha->host->can_queue) 4627 return QLA_SUCCESS; 4628 4629 msleep(1000); 4630 } 4631 /* If we timed out on waiting for commands to come back 4632 * return ERROR. */ 4633 return QLA_ERROR; 4634 } 4635 4636 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4637 { 4638 uint32_t ctrl_status; 4639 unsigned long flags = 0; 4640 4641 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4642 4643 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4644 return QLA_ERROR; 4645 4646 spin_lock_irqsave(&ha->hardware_lock, flags); 4647 4648 /* 4649 * If the SCSI Reset Interrupt bit is set, clear it. 4650 * Otherwise, the Soft Reset won't work. 4651 */ 4652 ctrl_status = readw(&ha->reg->ctrl_status); 4653 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4654 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4655 4656 /* Issue Soft Reset */ 4657 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4658 readl(&ha->reg->ctrl_status); 4659 4660 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4661 return QLA_SUCCESS; 4662 } 4663 4664 /** 4665 * qla4xxx_soft_reset - performs soft reset. 4666 * @ha: Pointer to host adapter structure. 4667 **/ 4668 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4669 { 4670 uint32_t max_wait_time; 4671 unsigned long flags = 0; 4672 int status; 4673 uint32_t ctrl_status; 4674 4675 status = qla4xxx_hw_reset(ha); 4676 if (status != QLA_SUCCESS) 4677 return status; 4678 4679 status = QLA_ERROR; 4680 /* Wait until the Network Reset Intr bit is cleared */ 4681 max_wait_time = RESET_INTR_TOV; 4682 do { 4683 spin_lock_irqsave(&ha->hardware_lock, flags); 4684 ctrl_status = readw(&ha->reg->ctrl_status); 4685 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4686 4687 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4688 break; 4689 4690 msleep(1000); 4691 } while ((--max_wait_time)); 4692 4693 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4694 DEBUG2(printk(KERN_WARNING 4695 "scsi%ld: Network Reset Intr not cleared by " 4696 "Network function, clearing it now!\n", 4697 ha->host_no)); 4698 spin_lock_irqsave(&ha->hardware_lock, flags); 4699 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4700 readl(&ha->reg->ctrl_status); 4701 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4702 } 4703 4704 /* Wait until the firmware tells us the Soft Reset is done */ 4705 max_wait_time = SOFT_RESET_TOV; 4706 do { 4707 spin_lock_irqsave(&ha->hardware_lock, flags); 4708 ctrl_status = readw(&ha->reg->ctrl_status); 4709 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4710 4711 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4712 status = QLA_SUCCESS; 4713 break; 4714 } 4715 4716 msleep(1000); 4717 } while ((--max_wait_time)); 4718 4719 /* 4720 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4721 * after the soft reset has taken place. 4722 */ 4723 spin_lock_irqsave(&ha->hardware_lock, flags); 4724 ctrl_status = readw(&ha->reg->ctrl_status); 4725 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4726 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4727 readl(&ha->reg->ctrl_status); 4728 } 4729 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4730 4731 /* If soft reset fails then most probably the bios on other 4732 * function is also enabled. 4733 * Since the initialization is sequential the other fn 4734 * wont be able to acknowledge the soft reset. 4735 * Issue a force soft reset to workaround this scenario. 4736 */ 4737 if (max_wait_time == 0) { 4738 /* Issue Force Soft Reset */ 4739 spin_lock_irqsave(&ha->hardware_lock, flags); 4740 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4741 readl(&ha->reg->ctrl_status); 4742 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4743 /* Wait until the firmware tells us the Soft Reset is done */ 4744 max_wait_time = SOFT_RESET_TOV; 4745 do { 4746 spin_lock_irqsave(&ha->hardware_lock, flags); 4747 ctrl_status = readw(&ha->reg->ctrl_status); 4748 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4749 4750 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4751 status = QLA_SUCCESS; 4752 break; 4753 } 4754 4755 msleep(1000); 4756 } while ((--max_wait_time)); 4757 } 4758 4759 return status; 4760 } 4761 4762 /** 4763 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4764 * @ha: Pointer to host adapter structure. 4765 * @res: returned scsi status 4766 * 4767 * This routine is called just prior to a HARD RESET to return all 4768 * outstanding commands back to the Operating System. 4769 * Caller should make sure that the following locks are released 4770 * before this calling routine: Hardware lock, and io_request_lock. 4771 **/ 4772 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4773 { 4774 struct srb *srb; 4775 int i; 4776 unsigned long flags; 4777 4778 spin_lock_irqsave(&ha->hardware_lock, flags); 4779 for (i = 0; i < ha->host->can_queue; i++) { 4780 srb = qla4xxx_del_from_active_array(ha, i); 4781 if (srb != NULL) { 4782 srb->cmd->result = res; 4783 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4784 } 4785 } 4786 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4787 } 4788 4789 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4790 { 4791 clear_bit(AF_ONLINE, &ha->flags); 4792 4793 /* Disable the board */ 4794 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4795 4796 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4797 qla4xxx_mark_all_devices_missing(ha); 4798 clear_bit(AF_INIT_DONE, &ha->flags); 4799 } 4800 4801 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4802 { 4803 struct iscsi_session *sess; 4804 struct ddb_entry *ddb_entry; 4805 4806 sess = cls_session->dd_data; 4807 ddb_entry = sess->dd_data; 4808 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4809 4810 if (ddb_entry->ddb_type == FLASH_DDB) 4811 iscsi_block_session(ddb_entry->sess); 4812 else 4813 iscsi_session_failure(cls_session->dd_data, 4814 ISCSI_ERR_CONN_FAILED); 4815 } 4816 4817 /** 4818 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4819 * @ha: Pointer to host adapter structure. 4820 **/ 4821 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4822 { 4823 int status = QLA_ERROR; 4824 uint8_t reset_chip = 0; 4825 uint32_t dev_state; 4826 unsigned long wait; 4827 4828 /* Stall incoming I/O until we are done */ 4829 scsi_block_requests(ha->host); 4830 clear_bit(AF_ONLINE, &ha->flags); 4831 clear_bit(AF_LINK_UP, &ha->flags); 4832 4833 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4834 4835 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4836 4837 if ((is_qla8032(ha) || is_qla8042(ha)) && 4838 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4839 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4840 __func__); 4841 /* disable pause frame for ISP83xx */ 4842 qla4_83xx_disable_pause(ha); 4843 } 4844 4845 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4846 4847 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4848 reset_chip = 1; 4849 4850 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4851 * do not reset adapter, jump to initialize_adapter */ 4852 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4853 status = QLA_SUCCESS; 4854 goto recover_ha_init_adapter; 4855 } 4856 4857 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4858 * from eh_host_reset or ioctl module */ 4859 if (is_qla80XX(ha) && !reset_chip && 4860 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4861 4862 DEBUG2(ql4_printk(KERN_INFO, ha, 4863 "scsi%ld: %s - Performing stop_firmware...\n", 4864 ha->host_no, __func__)); 4865 status = ha->isp_ops->reset_firmware(ha); 4866 if (status == QLA_SUCCESS) { 4867 ha->isp_ops->disable_intrs(ha); 4868 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4869 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4870 } else { 4871 /* If the stop_firmware fails then 4872 * reset the entire chip */ 4873 reset_chip = 1; 4874 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4875 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4876 } 4877 } 4878 4879 /* Issue full chip reset if recovering from a catastrophic error, 4880 * or if stop_firmware fails for ISP-8xxx. 4881 * This is the default case for ISP-4xxx */ 4882 if (is_qla40XX(ha) || reset_chip) { 4883 if (is_qla40XX(ha)) 4884 goto chip_reset; 4885 4886 /* Check if 8XXX firmware is alive or not 4887 * We may have arrived here from NEED_RESET 4888 * detection only */ 4889 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4890 goto chip_reset; 4891 4892 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4893 while (time_before(jiffies, wait)) { 4894 if (qla4_8xxx_check_fw_alive(ha)) { 4895 qla4xxx_mailbox_premature_completion(ha); 4896 break; 4897 } 4898 4899 set_current_state(TASK_UNINTERRUPTIBLE); 4900 schedule_timeout(HZ); 4901 } 4902 chip_reset: 4903 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4904 qla4xxx_cmd_wait(ha); 4905 4906 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4907 DEBUG2(ql4_printk(KERN_INFO, ha, 4908 "scsi%ld: %s - Performing chip reset..\n", 4909 ha->host_no, __func__)); 4910 status = ha->isp_ops->reset_chip(ha); 4911 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4912 } 4913 4914 /* Flush any pending ddb changed AENs */ 4915 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4916 4917 recover_ha_init_adapter: 4918 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4919 if (status == QLA_SUCCESS) { 4920 /* For ISP-4xxx, force function 1 to always initialize 4921 * before function 3 to prevent both funcions from 4922 * stepping on top of the other */ 4923 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4924 ssleep(6); 4925 4926 /* NOTE: AF_ONLINE flag set upon successful completion of 4927 * qla4xxx_initialize_adapter */ 4928 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4929 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4930 status = qla4_8xxx_check_init_adapter_retry(ha); 4931 if (status == QLA_ERROR) { 4932 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4933 ha->host_no, __func__); 4934 qla4xxx_dead_adapter_cleanup(ha); 4935 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4936 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4937 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4938 &ha->dpc_flags); 4939 goto exit_recover; 4940 } 4941 } 4942 } 4943 4944 /* Retry failed adapter initialization, if necessary 4945 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4946 * case to prevent ping-pong resets between functions */ 4947 if (!test_bit(AF_ONLINE, &ha->flags) && 4948 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4949 /* Adapter initialization failed, see if we can retry 4950 * resetting the ha. 4951 * Since we don't want to block the DPC for too long 4952 * with multiple resets in the same thread, 4953 * utilize DPC to retry */ 4954 if (is_qla80XX(ha)) { 4955 ha->isp_ops->idc_lock(ha); 4956 dev_state = qla4_8xxx_rd_direct(ha, 4957 QLA8XXX_CRB_DEV_STATE); 4958 ha->isp_ops->idc_unlock(ha); 4959 if (dev_state == QLA8XXX_DEV_FAILED) { 4960 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4961 "recover adapter. H/W is in Failed " 4962 "state\n", __func__); 4963 qla4xxx_dead_adapter_cleanup(ha); 4964 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4965 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4966 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4967 &ha->dpc_flags); 4968 status = QLA_ERROR; 4969 4970 goto exit_recover; 4971 } 4972 } 4973 4974 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 4975 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 4976 DEBUG2(printk("scsi%ld: recover adapter - retrying " 4977 "(%d) more times\n", ha->host_no, 4978 ha->retry_reset_ha_cnt)); 4979 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4980 status = QLA_ERROR; 4981 } else { 4982 if (ha->retry_reset_ha_cnt > 0) { 4983 /* Schedule another Reset HA--DPC will retry */ 4984 ha->retry_reset_ha_cnt--; 4985 DEBUG2(printk("scsi%ld: recover adapter - " 4986 "retry remaining %d\n", 4987 ha->host_no, 4988 ha->retry_reset_ha_cnt)); 4989 status = QLA_ERROR; 4990 } 4991 4992 if (ha->retry_reset_ha_cnt == 0) { 4993 /* Recover adapter retries have been exhausted. 4994 * Adapter DEAD */ 4995 DEBUG2(printk("scsi%ld: recover adapter " 4996 "failed - board disabled\n", 4997 ha->host_no)); 4998 qla4xxx_dead_adapter_cleanup(ha); 4999 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5000 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5001 clear_bit(DPC_RESET_HA_FW_CONTEXT, 5002 &ha->dpc_flags); 5003 status = QLA_ERROR; 5004 } 5005 } 5006 } else { 5007 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5008 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5009 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5010 } 5011 5012 exit_recover: 5013 ha->adapter_error_count++; 5014 5015 if (test_bit(AF_ONLINE, &ha->flags)) 5016 ha->isp_ops->enable_intrs(ha); 5017 5018 scsi_unblock_requests(ha->host); 5019 5020 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 5021 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 5022 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 5023 5024 return status; 5025 } 5026 5027 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 5028 { 5029 struct iscsi_session *sess; 5030 struct ddb_entry *ddb_entry; 5031 struct scsi_qla_host *ha; 5032 5033 sess = cls_session->dd_data; 5034 ddb_entry = sess->dd_data; 5035 ha = ddb_entry->ha; 5036 if (!iscsi_is_session_online(cls_session)) { 5037 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5038 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5039 " unblock session\n", ha->host_no, __func__, 5040 ddb_entry->fw_ddb_index); 5041 iscsi_unblock_session(ddb_entry->sess); 5042 } else { 5043 /* Trigger relogin */ 5044 if (ddb_entry->ddb_type == FLASH_DDB) { 5045 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5046 test_bit(DF_DISABLE_RELOGIN, 5047 &ddb_entry->flags))) 5048 qla4xxx_arm_relogin_timer(ddb_entry); 5049 } else 5050 iscsi_session_failure(cls_session->dd_data, 5051 ISCSI_ERR_CONN_FAILED); 5052 } 5053 } 5054 } 5055 5056 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5057 { 5058 struct iscsi_session *sess; 5059 struct ddb_entry *ddb_entry; 5060 struct scsi_qla_host *ha; 5061 5062 sess = cls_session->dd_data; 5063 ddb_entry = sess->dd_data; 5064 ha = ddb_entry->ha; 5065 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5066 " unblock session\n", ha->host_no, __func__, 5067 ddb_entry->fw_ddb_index); 5068 5069 iscsi_unblock_session(ddb_entry->sess); 5070 5071 /* Start scan target */ 5072 if (test_bit(AF_ONLINE, &ha->flags)) { 5073 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5074 " start scan\n", ha->host_no, __func__, 5075 ddb_entry->fw_ddb_index); 5076 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 5077 } 5078 return QLA_SUCCESS; 5079 } 5080 5081 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5082 { 5083 struct iscsi_session *sess; 5084 struct ddb_entry *ddb_entry; 5085 struct scsi_qla_host *ha; 5086 int status = QLA_SUCCESS; 5087 5088 sess = cls_session->dd_data; 5089 ddb_entry = sess->dd_data; 5090 ha = ddb_entry->ha; 5091 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5092 " unblock user space session\n", ha->host_no, __func__, 5093 ddb_entry->fw_ddb_index); 5094 5095 if (!iscsi_is_session_online(cls_session)) { 5096 iscsi_conn_start(ddb_entry->conn); 5097 iscsi_conn_login_event(ddb_entry->conn, 5098 ISCSI_CONN_STATE_LOGGED_IN); 5099 } else { 5100 ql4_printk(KERN_INFO, ha, 5101 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5102 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5103 cls_session->sid); 5104 status = QLA_ERROR; 5105 } 5106 5107 return status; 5108 } 5109 5110 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5111 { 5112 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5113 } 5114 5115 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5116 { 5117 uint16_t relogin_timer; 5118 struct iscsi_session *sess; 5119 struct ddb_entry *ddb_entry; 5120 struct scsi_qla_host *ha; 5121 5122 sess = cls_sess->dd_data; 5123 ddb_entry = sess->dd_data; 5124 ha = ddb_entry->ha; 5125 5126 relogin_timer = max(ddb_entry->default_relogin_timeout, 5127 (uint16_t)RELOGIN_TOV); 5128 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5129 5130 DEBUG2(ql4_printk(KERN_INFO, ha, 5131 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5132 ddb_entry->fw_ddb_index, relogin_timer)); 5133 5134 qla4xxx_login_flash_ddb(cls_sess); 5135 } 5136 5137 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5138 { 5139 struct iscsi_session *sess; 5140 struct ddb_entry *ddb_entry; 5141 struct scsi_qla_host *ha; 5142 5143 sess = cls_sess->dd_data; 5144 ddb_entry = sess->dd_data; 5145 ha = ddb_entry->ha; 5146 5147 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5148 return; 5149 5150 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5151 return; 5152 5153 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5154 !iscsi_is_session_online(cls_sess)) { 5155 DEBUG2(ql4_printk(KERN_INFO, ha, 5156 "relogin issued\n")); 5157 qla4xxx_relogin_flash_ddb(cls_sess); 5158 } 5159 } 5160 5161 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5162 { 5163 if (ha->dpc_thread) 5164 queue_work(ha->dpc_thread, &ha->dpc_work); 5165 } 5166 5167 static struct qla4_work_evt * 5168 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5169 enum qla4_work_type type) 5170 { 5171 struct qla4_work_evt *e; 5172 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5173 5174 e = kzalloc(size, GFP_ATOMIC); 5175 if (!e) 5176 return NULL; 5177 5178 INIT_LIST_HEAD(&e->list); 5179 e->type = type; 5180 return e; 5181 } 5182 5183 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5184 struct qla4_work_evt *e) 5185 { 5186 unsigned long flags; 5187 5188 spin_lock_irqsave(&ha->work_lock, flags); 5189 list_add_tail(&e->list, &ha->work_list); 5190 spin_unlock_irqrestore(&ha->work_lock, flags); 5191 qla4xxx_wake_dpc(ha); 5192 } 5193 5194 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5195 enum iscsi_host_event_code aen_code, 5196 uint32_t data_size, uint8_t *data) 5197 { 5198 struct qla4_work_evt *e; 5199 5200 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5201 if (!e) 5202 return QLA_ERROR; 5203 5204 e->u.aen.code = aen_code; 5205 e->u.aen.data_size = data_size; 5206 memcpy(e->u.aen.data, data, data_size); 5207 5208 qla4xxx_post_work(ha, e); 5209 5210 return QLA_SUCCESS; 5211 } 5212 5213 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5214 uint32_t status, uint32_t pid, 5215 uint32_t data_size, uint8_t *data) 5216 { 5217 struct qla4_work_evt *e; 5218 5219 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5220 if (!e) 5221 return QLA_ERROR; 5222 5223 e->u.ping.status = status; 5224 e->u.ping.pid = pid; 5225 e->u.ping.data_size = data_size; 5226 memcpy(e->u.ping.data, data, data_size); 5227 5228 qla4xxx_post_work(ha, e); 5229 5230 return QLA_SUCCESS; 5231 } 5232 5233 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5234 { 5235 struct qla4_work_evt *e, *tmp; 5236 unsigned long flags; 5237 LIST_HEAD(work); 5238 5239 spin_lock_irqsave(&ha->work_lock, flags); 5240 list_splice_init(&ha->work_list, &work); 5241 spin_unlock_irqrestore(&ha->work_lock, flags); 5242 5243 list_for_each_entry_safe(e, tmp, &work, list) { 5244 list_del_init(&e->list); 5245 5246 switch (e->type) { 5247 case QLA4_EVENT_AEN: 5248 iscsi_post_host_event(ha->host_no, 5249 &qla4xxx_iscsi_transport, 5250 e->u.aen.code, 5251 e->u.aen.data_size, 5252 e->u.aen.data); 5253 break; 5254 case QLA4_EVENT_PING_STATUS: 5255 iscsi_ping_comp_event(ha->host_no, 5256 &qla4xxx_iscsi_transport, 5257 e->u.ping.status, 5258 e->u.ping.pid, 5259 e->u.ping.data_size, 5260 e->u.ping.data); 5261 break; 5262 default: 5263 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5264 "supported", e->type); 5265 } 5266 kfree(e); 5267 } 5268 } 5269 5270 /** 5271 * qla4xxx_do_dpc - dpc routine 5272 * @data: in our case pointer to adapter structure 5273 * 5274 * This routine is a task that is schedule by the interrupt handler 5275 * to perform the background processing for interrupts. We put it 5276 * on a task queue that is consumed whenever the scheduler runs; that's 5277 * so you can do anything (i.e. put the process to sleep etc). In fact, 5278 * the mid-level tries to sleep when it reaches the driver threshold 5279 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5280 **/ 5281 static void qla4xxx_do_dpc(struct work_struct *work) 5282 { 5283 struct scsi_qla_host *ha = 5284 container_of(work, struct scsi_qla_host, dpc_work); 5285 int status = QLA_ERROR; 5286 5287 DEBUG2(ql4_printk(KERN_INFO, ha, 5288 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5289 ha->host_no, __func__, ha->flags, ha->dpc_flags)); 5290 5291 /* Initialization not yet finished. Don't do anything yet. */ 5292 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5293 return; 5294 5295 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5296 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5297 ha->host_no, __func__, ha->flags)); 5298 return; 5299 } 5300 5301 /* post events to application */ 5302 qla4xxx_do_work(ha); 5303 5304 if (is_qla80XX(ha)) { 5305 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5306 if (is_qla8032(ha) || is_qla8042(ha)) { 5307 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5308 __func__); 5309 /* disable pause frame for ISP83xx */ 5310 qla4_83xx_disable_pause(ha); 5311 } 5312 5313 ha->isp_ops->idc_lock(ha); 5314 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5315 QLA8XXX_DEV_FAILED); 5316 ha->isp_ops->idc_unlock(ha); 5317 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5318 qla4_8xxx_device_state_handler(ha); 5319 } 5320 5321 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5322 if (is_qla8042(ha)) { 5323 if (ha->idc_info.info2 & 5324 ENABLE_INTERNAL_LOOPBACK) { 5325 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5326 __func__); 5327 status = qla4_84xx_config_acb(ha, 5328 ACB_CONFIG_DISABLE); 5329 if (status != QLA_SUCCESS) { 5330 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5331 __func__); 5332 } 5333 } 5334 } 5335 qla4_83xx_post_idc_ack(ha); 5336 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5337 } 5338 5339 if (is_qla8042(ha) && 5340 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5341 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5342 __func__); 5343 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5344 QLA_SUCCESS) { 5345 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5346 __func__); 5347 } 5348 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5349 } 5350 5351 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5352 qla4_8xxx_need_qsnt_handler(ha); 5353 } 5354 } 5355 5356 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5357 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5358 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5359 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5360 if ((is_qla8022(ha) && ql4xdontresethba) || 5361 ((is_qla8032(ha) || is_qla8042(ha)) && 5362 qla4_83xx_idc_dontreset(ha))) { 5363 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5364 ha->host_no, __func__)); 5365 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5366 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5367 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5368 goto dpc_post_reset_ha; 5369 } 5370 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5371 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5372 qla4xxx_recover_adapter(ha); 5373 5374 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5375 uint8_t wait_time = RESET_INTR_TOV; 5376 5377 while ((readw(&ha->reg->ctrl_status) & 5378 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5379 if (--wait_time == 0) 5380 break; 5381 msleep(1000); 5382 } 5383 if (wait_time == 0) 5384 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5385 "bit not cleared-- resetting\n", 5386 ha->host_no, __func__)); 5387 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5388 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5389 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5390 status = qla4xxx_recover_adapter(ha); 5391 } 5392 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5393 if (status == QLA_SUCCESS) 5394 ha->isp_ops->enable_intrs(ha); 5395 } 5396 } 5397 5398 dpc_post_reset_ha: 5399 /* ---- process AEN? --- */ 5400 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5401 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5402 5403 /* ---- Get DHCP IP Address? --- */ 5404 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5405 qla4xxx_get_dhcp_ip_address(ha); 5406 5407 /* ---- relogin device? --- */ 5408 if (adapter_up(ha) && 5409 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5410 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5411 } 5412 5413 /* ---- link change? --- */ 5414 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5415 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5416 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5417 /* ---- link down? --- */ 5418 qla4xxx_mark_all_devices_missing(ha); 5419 } else { 5420 /* ---- link up? --- * 5421 * F/W will auto login to all devices ONLY ONCE after 5422 * link up during driver initialization and runtime 5423 * fatal error recovery. Therefore, the driver must 5424 * manually relogin to devices when recovering from 5425 * connection failures, logouts, expired KATO, etc. */ 5426 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5427 qla4xxx_build_ddb_list(ha, ha->is_reset); 5428 iscsi_host_for_each_session(ha->host, 5429 qla4xxx_login_flash_ddb); 5430 } else 5431 qla4xxx_relogin_all_devices(ha); 5432 } 5433 } 5434 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) { 5435 if (qla4xxx_sysfs_ddb_export(ha)) 5436 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n", 5437 __func__); 5438 } 5439 } 5440 5441 /** 5442 * qla4xxx_free_adapter - release the adapter 5443 * @ha: pointer to adapter structure 5444 **/ 5445 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5446 { 5447 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5448 5449 /* Turn-off interrupts on the card. */ 5450 ha->isp_ops->disable_intrs(ha); 5451 5452 if (is_qla40XX(ha)) { 5453 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5454 &ha->reg->ctrl_status); 5455 readl(&ha->reg->ctrl_status); 5456 } else if (is_qla8022(ha)) { 5457 writel(0, &ha->qla4_82xx_reg->host_int); 5458 readl(&ha->qla4_82xx_reg->host_int); 5459 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5460 writel(0, &ha->qla4_83xx_reg->risc_intr); 5461 readl(&ha->qla4_83xx_reg->risc_intr); 5462 } 5463 5464 /* Remove timer thread, if present */ 5465 if (ha->timer_active) 5466 qla4xxx_stop_timer(ha); 5467 5468 /* Kill the kernel thread for this host */ 5469 if (ha->dpc_thread) 5470 destroy_workqueue(ha->dpc_thread); 5471 5472 /* Kill the kernel thread for this host */ 5473 if (ha->task_wq) 5474 destroy_workqueue(ha->task_wq); 5475 5476 /* Put firmware in known state */ 5477 ha->isp_ops->reset_firmware(ha); 5478 5479 if (is_qla80XX(ha)) { 5480 ha->isp_ops->idc_lock(ha); 5481 qla4_8xxx_clear_drv_active(ha); 5482 ha->isp_ops->idc_unlock(ha); 5483 } 5484 5485 /* Detach interrupts */ 5486 qla4xxx_free_irqs(ha); 5487 5488 /* free extra memory */ 5489 qla4xxx_mem_free(ha); 5490 } 5491 5492 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5493 { 5494 int status = 0; 5495 unsigned long mem_base, mem_len, db_base, db_len; 5496 struct pci_dev *pdev = ha->pdev; 5497 5498 status = pci_request_regions(pdev, DRIVER_NAME); 5499 if (status) { 5500 printk(KERN_WARNING 5501 "scsi(%ld) Failed to reserve PIO regions (%s) " 5502 "status=%d\n", ha->host_no, pci_name(pdev), status); 5503 goto iospace_error_exit; 5504 } 5505 5506 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5507 __func__, pdev->revision)); 5508 ha->revision_id = pdev->revision; 5509 5510 /* remap phys address */ 5511 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5512 mem_len = pci_resource_len(pdev, 0); 5513 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5514 __func__, mem_base, mem_len)); 5515 5516 /* mapping of pcibase pointer */ 5517 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5518 if (!ha->nx_pcibase) { 5519 printk(KERN_ERR 5520 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5521 pci_release_regions(ha->pdev); 5522 goto iospace_error_exit; 5523 } 5524 5525 /* Mapping of IO base pointer, door bell read and write pointer */ 5526 5527 /* mapping of IO base pointer */ 5528 if (is_qla8022(ha)) { 5529 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5530 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5531 (ha->pdev->devfn << 11)); 5532 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5533 QLA82XX_CAM_RAM_DB2); 5534 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5535 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5536 ((uint8_t *)ha->nx_pcibase); 5537 } 5538 5539 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 5540 db_len = pci_resource_len(pdev, 4); 5541 5542 return 0; 5543 iospace_error_exit: 5544 return -ENOMEM; 5545 } 5546 5547 /*** 5548 * qla4xxx_iospace_config - maps registers 5549 * @ha: pointer to adapter structure 5550 * 5551 * This routines maps HBA's registers from the pci address space 5552 * into the kernel virtual address space for memory mapped i/o. 5553 **/ 5554 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5555 { 5556 unsigned long pio, pio_len, pio_flags; 5557 unsigned long mmio, mmio_len, mmio_flags; 5558 5559 pio = pci_resource_start(ha->pdev, 0); 5560 pio_len = pci_resource_len(ha->pdev, 0); 5561 pio_flags = pci_resource_flags(ha->pdev, 0); 5562 if (pio_flags & IORESOURCE_IO) { 5563 if (pio_len < MIN_IOBASE_LEN) { 5564 ql4_printk(KERN_WARNING, ha, 5565 "Invalid PCI I/O region size\n"); 5566 pio = 0; 5567 } 5568 } else { 5569 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5570 pio = 0; 5571 } 5572 5573 /* Use MMIO operations for all accesses. */ 5574 mmio = pci_resource_start(ha->pdev, 1); 5575 mmio_len = pci_resource_len(ha->pdev, 1); 5576 mmio_flags = pci_resource_flags(ha->pdev, 1); 5577 5578 if (!(mmio_flags & IORESOURCE_MEM)) { 5579 ql4_printk(KERN_ERR, ha, 5580 "region #0 not an MMIO resource, aborting\n"); 5581 5582 goto iospace_error_exit; 5583 } 5584 5585 if (mmio_len < MIN_IOBASE_LEN) { 5586 ql4_printk(KERN_ERR, ha, 5587 "Invalid PCI mem region size, aborting\n"); 5588 goto iospace_error_exit; 5589 } 5590 5591 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5592 ql4_printk(KERN_WARNING, ha, 5593 "Failed to reserve PIO/MMIO regions\n"); 5594 5595 goto iospace_error_exit; 5596 } 5597 5598 ha->pio_address = pio; 5599 ha->pio_length = pio_len; 5600 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5601 if (!ha->reg) { 5602 ql4_printk(KERN_ERR, ha, 5603 "cannot remap MMIO, aborting\n"); 5604 5605 goto iospace_error_exit; 5606 } 5607 5608 return 0; 5609 5610 iospace_error_exit: 5611 return -ENOMEM; 5612 } 5613 5614 static struct isp_operations qla4xxx_isp_ops = { 5615 .iospace_config = qla4xxx_iospace_config, 5616 .pci_config = qla4xxx_pci_config, 5617 .disable_intrs = qla4xxx_disable_intrs, 5618 .enable_intrs = qla4xxx_enable_intrs, 5619 .start_firmware = qla4xxx_start_firmware, 5620 .intr_handler = qla4xxx_intr_handler, 5621 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5622 .reset_chip = qla4xxx_soft_reset, 5623 .reset_firmware = qla4xxx_hw_reset, 5624 .queue_iocb = qla4xxx_queue_iocb, 5625 .complete_iocb = qla4xxx_complete_iocb, 5626 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5627 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5628 .get_sys_info = qla4xxx_get_sys_info, 5629 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5630 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5631 }; 5632 5633 static struct isp_operations qla4_82xx_isp_ops = { 5634 .iospace_config = qla4_8xxx_iospace_config, 5635 .pci_config = qla4_8xxx_pci_config, 5636 .disable_intrs = qla4_82xx_disable_intrs, 5637 .enable_intrs = qla4_82xx_enable_intrs, 5638 .start_firmware = qla4_8xxx_load_risc, 5639 .restart_firmware = qla4_82xx_try_start_fw, 5640 .intr_handler = qla4_82xx_intr_handler, 5641 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5642 .need_reset = qla4_8xxx_need_reset, 5643 .reset_chip = qla4_82xx_isp_reset, 5644 .reset_firmware = qla4_8xxx_stop_firmware, 5645 .queue_iocb = qla4_82xx_queue_iocb, 5646 .complete_iocb = qla4_82xx_complete_iocb, 5647 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5648 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5649 .get_sys_info = qla4_8xxx_get_sys_info, 5650 .rd_reg_direct = qla4_82xx_rd_32, 5651 .wr_reg_direct = qla4_82xx_wr_32, 5652 .rd_reg_indirect = qla4_82xx_md_rd_32, 5653 .wr_reg_indirect = qla4_82xx_md_wr_32, 5654 .idc_lock = qla4_82xx_idc_lock, 5655 .idc_unlock = qla4_82xx_idc_unlock, 5656 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5657 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5658 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5659 }; 5660 5661 static struct isp_operations qla4_83xx_isp_ops = { 5662 .iospace_config = qla4_8xxx_iospace_config, 5663 .pci_config = qla4_8xxx_pci_config, 5664 .disable_intrs = qla4_83xx_disable_intrs, 5665 .enable_intrs = qla4_83xx_enable_intrs, 5666 .start_firmware = qla4_8xxx_load_risc, 5667 .restart_firmware = qla4_83xx_start_firmware, 5668 .intr_handler = qla4_83xx_intr_handler, 5669 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5670 .need_reset = qla4_8xxx_need_reset, 5671 .reset_chip = qla4_83xx_isp_reset, 5672 .reset_firmware = qla4_8xxx_stop_firmware, 5673 .queue_iocb = qla4_83xx_queue_iocb, 5674 .complete_iocb = qla4_83xx_complete_iocb, 5675 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5676 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5677 .get_sys_info = qla4_8xxx_get_sys_info, 5678 .rd_reg_direct = qla4_83xx_rd_reg, 5679 .wr_reg_direct = qla4_83xx_wr_reg, 5680 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5681 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5682 .idc_lock = qla4_83xx_drv_lock, 5683 .idc_unlock = qla4_83xx_drv_unlock, 5684 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5685 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5686 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5687 }; 5688 5689 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5690 { 5691 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5692 } 5693 5694 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5695 { 5696 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5697 } 5698 5699 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5700 { 5701 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5702 } 5703 5704 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5705 { 5706 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5707 } 5708 5709 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5710 { 5711 struct scsi_qla_host *ha = data; 5712 char *str = buf; 5713 int rc; 5714 5715 switch (type) { 5716 case ISCSI_BOOT_ETH_FLAGS: 5717 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5718 break; 5719 case ISCSI_BOOT_ETH_INDEX: 5720 rc = sprintf(str, "0\n"); 5721 break; 5722 case ISCSI_BOOT_ETH_MAC: 5723 rc = sysfs_format_mac(str, ha->my_mac, 5724 MAC_ADDR_LEN); 5725 break; 5726 default: 5727 rc = -ENOSYS; 5728 break; 5729 } 5730 return rc; 5731 } 5732 5733 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5734 { 5735 int rc; 5736 5737 switch (type) { 5738 case ISCSI_BOOT_ETH_FLAGS: 5739 case ISCSI_BOOT_ETH_MAC: 5740 case ISCSI_BOOT_ETH_INDEX: 5741 rc = S_IRUGO; 5742 break; 5743 default: 5744 rc = 0; 5745 break; 5746 } 5747 return rc; 5748 } 5749 5750 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5751 { 5752 struct scsi_qla_host *ha = data; 5753 char *str = buf; 5754 int rc; 5755 5756 switch (type) { 5757 case ISCSI_BOOT_INI_INITIATOR_NAME: 5758 rc = sprintf(str, "%s\n", ha->name_string); 5759 break; 5760 default: 5761 rc = -ENOSYS; 5762 break; 5763 } 5764 return rc; 5765 } 5766 5767 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5768 { 5769 int rc; 5770 5771 switch (type) { 5772 case ISCSI_BOOT_INI_INITIATOR_NAME: 5773 rc = S_IRUGO; 5774 break; 5775 default: 5776 rc = 0; 5777 break; 5778 } 5779 return rc; 5780 } 5781 5782 static ssize_t 5783 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5784 char *buf) 5785 { 5786 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5787 char *str = buf; 5788 int rc; 5789 5790 switch (type) { 5791 case ISCSI_BOOT_TGT_NAME: 5792 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5793 break; 5794 case ISCSI_BOOT_TGT_IP_ADDR: 5795 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5796 rc = sprintf(buf, "%pI4\n", 5797 &boot_conn->dest_ipaddr.ip_address); 5798 else 5799 rc = sprintf(str, "%pI6\n", 5800 &boot_conn->dest_ipaddr.ip_address); 5801 break; 5802 case ISCSI_BOOT_TGT_PORT: 5803 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5804 break; 5805 case ISCSI_BOOT_TGT_CHAP_NAME: 5806 rc = sprintf(str, "%.*s\n", 5807 boot_conn->chap.target_chap_name_length, 5808 (char *)&boot_conn->chap.target_chap_name); 5809 break; 5810 case ISCSI_BOOT_TGT_CHAP_SECRET: 5811 rc = sprintf(str, "%.*s\n", 5812 boot_conn->chap.target_secret_length, 5813 (char *)&boot_conn->chap.target_secret); 5814 break; 5815 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5816 rc = sprintf(str, "%.*s\n", 5817 boot_conn->chap.intr_chap_name_length, 5818 (char *)&boot_conn->chap.intr_chap_name); 5819 break; 5820 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5821 rc = sprintf(str, "%.*s\n", 5822 boot_conn->chap.intr_secret_length, 5823 (char *)&boot_conn->chap.intr_secret); 5824 break; 5825 case ISCSI_BOOT_TGT_FLAGS: 5826 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5827 break; 5828 case ISCSI_BOOT_TGT_NIC_ASSOC: 5829 rc = sprintf(str, "0\n"); 5830 break; 5831 default: 5832 rc = -ENOSYS; 5833 break; 5834 } 5835 return rc; 5836 } 5837 5838 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 5839 { 5840 struct scsi_qla_host *ha = data; 5841 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 5842 5843 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5844 } 5845 5846 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5847 { 5848 struct scsi_qla_host *ha = data; 5849 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5850 5851 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5852 } 5853 5854 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5855 { 5856 int rc; 5857 5858 switch (type) { 5859 case ISCSI_BOOT_TGT_NAME: 5860 case ISCSI_BOOT_TGT_IP_ADDR: 5861 case ISCSI_BOOT_TGT_PORT: 5862 case ISCSI_BOOT_TGT_CHAP_NAME: 5863 case ISCSI_BOOT_TGT_CHAP_SECRET: 5864 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5865 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5866 case ISCSI_BOOT_TGT_NIC_ASSOC: 5867 case ISCSI_BOOT_TGT_FLAGS: 5868 rc = S_IRUGO; 5869 break; 5870 default: 5871 rc = 0; 5872 break; 5873 } 5874 return rc; 5875 } 5876 5877 static void qla4xxx_boot_release(void *data) 5878 { 5879 struct scsi_qla_host *ha = data; 5880 5881 scsi_host_put(ha->host); 5882 } 5883 5884 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5885 { 5886 dma_addr_t buf_dma; 5887 uint32_t addr, pri_addr, sec_addr; 5888 uint32_t offset; 5889 uint16_t func_num; 5890 uint8_t val; 5891 uint8_t *buf = NULL; 5892 size_t size = 13 * sizeof(uint8_t); 5893 int ret = QLA_SUCCESS; 5894 5895 func_num = PCI_FUNC(ha->pdev->devfn); 5896 5897 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5898 __func__, ha->pdev->device, func_num); 5899 5900 if (is_qla40XX(ha)) { 5901 if (func_num == 1) { 5902 addr = NVRAM_PORT0_BOOT_MODE; 5903 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5904 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5905 } else if (func_num == 3) { 5906 addr = NVRAM_PORT1_BOOT_MODE; 5907 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5908 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5909 } else { 5910 ret = QLA_ERROR; 5911 goto exit_boot_info; 5912 } 5913 5914 /* Check Boot Mode */ 5915 val = rd_nvram_byte(ha, addr); 5916 if (!(val & 0x07)) { 5917 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5918 "options : 0x%x\n", __func__, val)); 5919 ret = QLA_ERROR; 5920 goto exit_boot_info; 5921 } 5922 5923 /* get primary valid target index */ 5924 val = rd_nvram_byte(ha, pri_addr); 5925 if (val & BIT_7) 5926 ddb_index[0] = (val & 0x7f); 5927 5928 /* get secondary valid target index */ 5929 val = rd_nvram_byte(ha, sec_addr); 5930 if (val & BIT_7) 5931 ddb_index[1] = (val & 0x7f); 5932 goto exit_boot_info; 5933 } else if (is_qla80XX(ha)) { 5934 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5935 &buf_dma, GFP_KERNEL); 5936 if (!buf) { 5937 DEBUG2(ql4_printk(KERN_ERR, ha, 5938 "%s: Unable to allocate dma buffer\n", 5939 __func__)); 5940 ret = QLA_ERROR; 5941 goto exit_boot_info; 5942 } 5943 5944 if (ha->port_num == 0) 5945 offset = BOOT_PARAM_OFFSET_PORT0; 5946 else if (ha->port_num == 1) 5947 offset = BOOT_PARAM_OFFSET_PORT1; 5948 else { 5949 ret = QLA_ERROR; 5950 goto exit_boot_info_free; 5951 } 5952 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5953 offset; 5954 if (qla4xxx_get_flash(ha, buf_dma, addr, 5955 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5956 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5957 " failed\n", ha->host_no, __func__)); 5958 ret = QLA_ERROR; 5959 goto exit_boot_info_free; 5960 } 5961 /* Check Boot Mode */ 5962 if (!(buf[1] & 0x07)) { 5963 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5964 " : 0x%x\n", buf[1])); 5965 ret = QLA_ERROR; 5966 goto exit_boot_info_free; 5967 } 5968 5969 /* get primary valid target index */ 5970 if (buf[2] & BIT_7) 5971 ddb_index[0] = buf[2] & 0x7f; 5972 5973 /* get secondary valid target index */ 5974 if (buf[11] & BIT_7) 5975 ddb_index[1] = buf[11] & 0x7f; 5976 } else { 5977 ret = QLA_ERROR; 5978 goto exit_boot_info; 5979 } 5980 5981 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 5982 " target ID %d\n", __func__, ddb_index[0], 5983 ddb_index[1])); 5984 5985 exit_boot_info_free: 5986 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 5987 exit_boot_info: 5988 ha->pri_ddb_idx = ddb_index[0]; 5989 ha->sec_ddb_idx = ddb_index[1]; 5990 return ret; 5991 } 5992 5993 /** 5994 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 5995 * @ha: pointer to adapter structure 5996 * @username: CHAP username to be returned 5997 * @password: CHAP password to be returned 5998 * 5999 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 6000 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 6001 * So from the CHAP cache find the first BIDI CHAP entry and set it 6002 * to the boot record in sysfs. 6003 **/ 6004 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 6005 char *password) 6006 { 6007 int i, ret = -EINVAL; 6008 int max_chap_entries = 0; 6009 struct ql4_chap_table *chap_table; 6010 6011 if (is_qla80XX(ha)) 6012 max_chap_entries = (ha->hw.flt_chap_size / 2) / 6013 sizeof(struct ql4_chap_table); 6014 else 6015 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 6016 6017 if (!ha->chap_list) { 6018 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 6019 return ret; 6020 } 6021 6022 mutex_lock(&ha->chap_sem); 6023 for (i = 0; i < max_chap_entries; i++) { 6024 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 6025 if (chap_table->cookie != 6026 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 6027 continue; 6028 } 6029 6030 if (chap_table->flags & BIT_7) /* local */ 6031 continue; 6032 6033 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6034 continue; 6035 6036 strlcpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6037 strlcpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6038 ret = 0; 6039 break; 6040 } 6041 mutex_unlock(&ha->chap_sem); 6042 6043 return ret; 6044 } 6045 6046 6047 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6048 struct ql4_boot_session_info *boot_sess, 6049 uint16_t ddb_index) 6050 { 6051 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6052 struct dev_db_entry *fw_ddb_entry; 6053 dma_addr_t fw_ddb_entry_dma; 6054 uint16_t idx; 6055 uint16_t options; 6056 int ret = QLA_SUCCESS; 6057 6058 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6059 &fw_ddb_entry_dma, GFP_KERNEL); 6060 if (!fw_ddb_entry) { 6061 DEBUG2(ql4_printk(KERN_ERR, ha, 6062 "%s: Unable to allocate dma buffer.\n", 6063 __func__)); 6064 ret = QLA_ERROR; 6065 return ret; 6066 } 6067 6068 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6069 fw_ddb_entry_dma, ddb_index)) { 6070 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6071 "index [%d]\n", __func__, ddb_index)); 6072 ret = QLA_ERROR; 6073 goto exit_boot_target; 6074 } 6075 6076 /* Update target name and IP from DDB */ 6077 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6078 min(sizeof(boot_sess->target_name), 6079 sizeof(fw_ddb_entry->iscsi_name))); 6080 6081 options = le16_to_cpu(fw_ddb_entry->options); 6082 if (options & DDB_OPT_IPV6_DEVICE) { 6083 memcpy(&boot_conn->dest_ipaddr.ip_address, 6084 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6085 } else { 6086 boot_conn->dest_ipaddr.ip_type = 0x1; 6087 memcpy(&boot_conn->dest_ipaddr.ip_address, 6088 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6089 } 6090 6091 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6092 6093 /* update chap information */ 6094 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6095 6096 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6097 6098 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6099 6100 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6101 target_chap_name, 6102 (char *)&boot_conn->chap.target_secret, 6103 idx); 6104 if (ret) { 6105 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6106 ret = QLA_ERROR; 6107 goto exit_boot_target; 6108 } 6109 6110 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6111 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6112 } 6113 6114 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6115 6116 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6117 6118 ret = qla4xxx_get_bidi_chap(ha, 6119 (char *)&boot_conn->chap.intr_chap_name, 6120 (char *)&boot_conn->chap.intr_secret); 6121 6122 if (ret) { 6123 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6124 ret = QLA_ERROR; 6125 goto exit_boot_target; 6126 } 6127 6128 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6129 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6130 } 6131 6132 exit_boot_target: 6133 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6134 fw_ddb_entry, fw_ddb_entry_dma); 6135 return ret; 6136 } 6137 6138 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6139 { 6140 uint16_t ddb_index[2]; 6141 int ret = QLA_ERROR; 6142 int rval; 6143 6144 memset(ddb_index, 0, sizeof(ddb_index)); 6145 ddb_index[0] = 0xffff; 6146 ddb_index[1] = 0xffff; 6147 ret = get_fw_boot_info(ha, ddb_index); 6148 if (ret != QLA_SUCCESS) { 6149 DEBUG2(ql4_printk(KERN_INFO, ha, 6150 "%s: No boot target configured.\n", __func__)); 6151 return ret; 6152 } 6153 6154 if (ql4xdisablesysfsboot) 6155 return QLA_SUCCESS; 6156 6157 if (ddb_index[0] == 0xffff) 6158 goto sec_target; 6159 6160 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6161 ddb_index[0]); 6162 if (rval != QLA_SUCCESS) { 6163 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6164 "configured\n", __func__)); 6165 } else 6166 ret = QLA_SUCCESS; 6167 6168 sec_target: 6169 if (ddb_index[1] == 0xffff) 6170 goto exit_get_boot_info; 6171 6172 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6173 ddb_index[1]); 6174 if (rval != QLA_SUCCESS) { 6175 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6176 " configured\n", __func__)); 6177 } else 6178 ret = QLA_SUCCESS; 6179 6180 exit_get_boot_info: 6181 return ret; 6182 } 6183 6184 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6185 { 6186 struct iscsi_boot_kobj *boot_kobj; 6187 6188 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6189 return QLA_ERROR; 6190 6191 if (ql4xdisablesysfsboot) { 6192 ql4_printk(KERN_INFO, ha, 6193 "%s: syfsboot disabled - driver will trigger login " 6194 "and publish session for discovery .\n", __func__); 6195 return QLA_SUCCESS; 6196 } 6197 6198 6199 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6200 if (!ha->boot_kset) 6201 goto kset_free; 6202 6203 if (!scsi_host_get(ha->host)) 6204 goto kset_free; 6205 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6206 qla4xxx_show_boot_tgt_pri_info, 6207 qla4xxx_tgt_get_attr_visibility, 6208 qla4xxx_boot_release); 6209 if (!boot_kobj) 6210 goto put_host; 6211 6212 if (!scsi_host_get(ha->host)) 6213 goto kset_free; 6214 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6215 qla4xxx_show_boot_tgt_sec_info, 6216 qla4xxx_tgt_get_attr_visibility, 6217 qla4xxx_boot_release); 6218 if (!boot_kobj) 6219 goto put_host; 6220 6221 if (!scsi_host_get(ha->host)) 6222 goto kset_free; 6223 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6224 qla4xxx_show_boot_ini_info, 6225 qla4xxx_ini_get_attr_visibility, 6226 qla4xxx_boot_release); 6227 if (!boot_kobj) 6228 goto put_host; 6229 6230 if (!scsi_host_get(ha->host)) 6231 goto kset_free; 6232 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6233 qla4xxx_show_boot_eth_info, 6234 qla4xxx_eth_get_attr_visibility, 6235 qla4xxx_boot_release); 6236 if (!boot_kobj) 6237 goto put_host; 6238 6239 return QLA_SUCCESS; 6240 6241 put_host: 6242 scsi_host_put(ha->host); 6243 kset_free: 6244 iscsi_boot_destroy_kset(ha->boot_kset); 6245 return -ENOMEM; 6246 } 6247 6248 6249 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6250 struct ql4_tuple_ddb *tddb) 6251 { 6252 struct scsi_qla_host *ha; 6253 struct iscsi_cls_session *cls_sess; 6254 struct iscsi_cls_conn *cls_conn; 6255 struct iscsi_session *sess; 6256 struct iscsi_conn *conn; 6257 6258 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6259 ha = ddb_entry->ha; 6260 cls_sess = ddb_entry->sess; 6261 sess = cls_sess->dd_data; 6262 cls_conn = ddb_entry->conn; 6263 conn = cls_conn->dd_data; 6264 6265 tddb->tpgt = sess->tpgt; 6266 tddb->port = conn->persistent_port; 6267 strlcpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 6268 strlcpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 6269 } 6270 6271 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6272 struct ql4_tuple_ddb *tddb, 6273 uint8_t *flash_isid) 6274 { 6275 uint16_t options = 0; 6276 6277 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6278 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6279 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6280 6281 options = le16_to_cpu(fw_ddb_entry->options); 6282 if (options & DDB_OPT_IPV6_DEVICE) 6283 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6284 else 6285 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6286 6287 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6288 6289 if (flash_isid == NULL) 6290 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6291 sizeof(tddb->isid)); 6292 else 6293 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6294 } 6295 6296 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6297 struct ql4_tuple_ddb *old_tddb, 6298 struct ql4_tuple_ddb *new_tddb, 6299 uint8_t is_isid_compare) 6300 { 6301 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6302 return QLA_ERROR; 6303 6304 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6305 return QLA_ERROR; 6306 6307 if (old_tddb->port != new_tddb->port) 6308 return QLA_ERROR; 6309 6310 /* For multi sessions, driver generates the ISID, so do not compare 6311 * ISID in reset path since it would be a comparison between the 6312 * driver generated ISID and firmware generated ISID. This could 6313 * lead to adding duplicated DDBs in the list as driver generated 6314 * ISID would not match firmware generated ISID. 6315 */ 6316 if (is_isid_compare) { 6317 DEBUG2(ql4_printk(KERN_INFO, ha, 6318 "%s: old ISID [%pmR] New ISID [%pmR]\n", 6319 __func__, old_tddb->isid, new_tddb->isid)); 6320 6321 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6322 sizeof(old_tddb->isid))) 6323 return QLA_ERROR; 6324 } 6325 6326 DEBUG2(ql4_printk(KERN_INFO, ha, 6327 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6328 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6329 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6330 new_tddb->ip_addr, new_tddb->iscsi_name)); 6331 6332 return QLA_SUCCESS; 6333 } 6334 6335 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6336 struct dev_db_entry *fw_ddb_entry, 6337 uint32_t *index) 6338 { 6339 struct ddb_entry *ddb_entry; 6340 struct ql4_tuple_ddb *fw_tddb = NULL; 6341 struct ql4_tuple_ddb *tmp_tddb = NULL; 6342 int idx; 6343 int ret = QLA_ERROR; 6344 6345 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6346 if (!fw_tddb) { 6347 DEBUG2(ql4_printk(KERN_WARNING, ha, 6348 "Memory Allocation failed.\n")); 6349 ret = QLA_SUCCESS; 6350 goto exit_check; 6351 } 6352 6353 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6354 if (!tmp_tddb) { 6355 DEBUG2(ql4_printk(KERN_WARNING, ha, 6356 "Memory Allocation failed.\n")); 6357 ret = QLA_SUCCESS; 6358 goto exit_check; 6359 } 6360 6361 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6362 6363 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6364 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6365 if (ddb_entry == NULL) 6366 continue; 6367 6368 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6369 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6370 ret = QLA_SUCCESS; /* found */ 6371 if (index != NULL) 6372 *index = idx; 6373 goto exit_check; 6374 } 6375 } 6376 6377 exit_check: 6378 if (fw_tddb) 6379 vfree(fw_tddb); 6380 if (tmp_tddb) 6381 vfree(tmp_tddb); 6382 return ret; 6383 } 6384 6385 /** 6386 * qla4xxx_check_existing_isid - check if target with same isid exist 6387 * in target list 6388 * @list_nt: list of target 6389 * @isid: isid to check 6390 * 6391 * This routine return QLA_SUCCESS if target with same isid exist 6392 **/ 6393 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6394 { 6395 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6396 struct dev_db_entry *fw_ddb_entry; 6397 6398 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6399 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6400 6401 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6402 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6403 return QLA_SUCCESS; 6404 } 6405 } 6406 return QLA_ERROR; 6407 } 6408 6409 /** 6410 * qla4xxx_update_isid - compare ddbs and updated isid 6411 * @ha: Pointer to host adapter structure. 6412 * @list_nt: list of nt target 6413 * @fw_ddb_entry: firmware ddb entry 6414 * 6415 * This routine update isid if ddbs have same iqn, same isid and 6416 * different IP addr. 6417 * Return QLA_SUCCESS if isid is updated. 6418 **/ 6419 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6420 struct list_head *list_nt, 6421 struct dev_db_entry *fw_ddb_entry) 6422 { 6423 uint8_t base_value, i; 6424 6425 base_value = fw_ddb_entry->isid[1] & 0x1f; 6426 for (i = 0; i < 8; i++) { 6427 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6428 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6429 break; 6430 } 6431 6432 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6433 return QLA_ERROR; 6434 6435 return QLA_SUCCESS; 6436 } 6437 6438 /** 6439 * qla4xxx_should_update_isid - check if isid need to update 6440 * @ha: Pointer to host adapter structure. 6441 * @old_tddb: ddb tuple 6442 * @new_tddb: ddb tuple 6443 * 6444 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6445 * same isid 6446 **/ 6447 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6448 struct ql4_tuple_ddb *old_tddb, 6449 struct ql4_tuple_ddb *new_tddb) 6450 { 6451 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6452 /* Same ip */ 6453 if (old_tddb->port == new_tddb->port) 6454 return QLA_ERROR; 6455 } 6456 6457 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6458 /* different iqn */ 6459 return QLA_ERROR; 6460 6461 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6462 sizeof(old_tddb->isid))) 6463 /* different isid */ 6464 return QLA_ERROR; 6465 6466 return QLA_SUCCESS; 6467 } 6468 6469 /** 6470 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6471 * @ha: Pointer to host adapter structure. 6472 * @list_nt: list of nt target. 6473 * @fw_ddb_entry: firmware ddb entry. 6474 * 6475 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6476 * duplicate ddb in list_nt. 6477 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6478 * Note: This function also update isid of DDB if required. 6479 **/ 6480 6481 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6482 struct list_head *list_nt, 6483 struct dev_db_entry *fw_ddb_entry) 6484 { 6485 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6486 struct ql4_tuple_ddb *fw_tddb = NULL; 6487 struct ql4_tuple_ddb *tmp_tddb = NULL; 6488 int rval, ret = QLA_ERROR; 6489 6490 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6491 if (!fw_tddb) { 6492 DEBUG2(ql4_printk(KERN_WARNING, ha, 6493 "Memory Allocation failed.\n")); 6494 ret = QLA_SUCCESS; 6495 goto exit_check; 6496 } 6497 6498 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6499 if (!tmp_tddb) { 6500 DEBUG2(ql4_printk(KERN_WARNING, ha, 6501 "Memory Allocation failed.\n")); 6502 ret = QLA_SUCCESS; 6503 goto exit_check; 6504 } 6505 6506 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6507 6508 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6509 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6510 nt_ddb_idx->flash_isid); 6511 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6512 /* found duplicate ddb */ 6513 if (ret == QLA_SUCCESS) 6514 goto exit_check; 6515 } 6516 6517 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6518 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6519 6520 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6521 if (ret == QLA_SUCCESS) { 6522 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6523 if (rval == QLA_SUCCESS) 6524 ret = QLA_ERROR; 6525 else 6526 ret = QLA_SUCCESS; 6527 6528 goto exit_check; 6529 } 6530 } 6531 6532 exit_check: 6533 if (fw_tddb) 6534 vfree(fw_tddb); 6535 if (tmp_tddb) 6536 vfree(tmp_tddb); 6537 return ret; 6538 } 6539 6540 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6541 { 6542 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6543 6544 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6545 list_del_init(&ddb_idx->list); 6546 vfree(ddb_idx); 6547 } 6548 } 6549 6550 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6551 struct dev_db_entry *fw_ddb_entry) 6552 { 6553 struct iscsi_endpoint *ep; 6554 struct sockaddr_in *addr; 6555 struct sockaddr_in6 *addr6; 6556 struct sockaddr *t_addr; 6557 struct sockaddr_storage *dst_addr; 6558 char *ip; 6559 6560 /* TODO: need to destroy on unload iscsi_endpoint*/ 6561 dst_addr = vmalloc(sizeof(*dst_addr)); 6562 if (!dst_addr) 6563 return NULL; 6564 6565 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6566 t_addr = (struct sockaddr *)dst_addr; 6567 t_addr->sa_family = AF_INET6; 6568 addr6 = (struct sockaddr_in6 *)dst_addr; 6569 ip = (char *)&addr6->sin6_addr; 6570 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6571 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6572 6573 } else { 6574 t_addr = (struct sockaddr *)dst_addr; 6575 t_addr->sa_family = AF_INET; 6576 addr = (struct sockaddr_in *)dst_addr; 6577 ip = (char *)&addr->sin_addr; 6578 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6579 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6580 } 6581 6582 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6583 vfree(dst_addr); 6584 return ep; 6585 } 6586 6587 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6588 { 6589 if (ql4xdisablesysfsboot) 6590 return QLA_SUCCESS; 6591 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6592 return QLA_ERROR; 6593 return QLA_SUCCESS; 6594 } 6595 6596 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6597 struct ddb_entry *ddb_entry, 6598 uint16_t idx) 6599 { 6600 uint16_t def_timeout; 6601 6602 ddb_entry->ddb_type = FLASH_DDB; 6603 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6604 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6605 ddb_entry->ha = ha; 6606 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6607 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6608 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6609 6610 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6611 atomic_set(&ddb_entry->relogin_timer, 0); 6612 atomic_set(&ddb_entry->relogin_retry_count, 0); 6613 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6614 ddb_entry->default_relogin_timeout = 6615 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6616 def_timeout : LOGIN_TOV; 6617 ddb_entry->default_time2wait = 6618 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6619 6620 if (ql4xdisablesysfsboot && 6621 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6622 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6623 } 6624 6625 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6626 { 6627 uint32_t idx = 0; 6628 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6629 uint32_t sts[MBOX_REG_COUNT]; 6630 uint32_t ip_state; 6631 unsigned long wtime; 6632 int ret; 6633 6634 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6635 do { 6636 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6637 if (ip_idx[idx] == -1) 6638 continue; 6639 6640 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6641 6642 if (ret == QLA_ERROR) { 6643 ip_idx[idx] = -1; 6644 continue; 6645 } 6646 6647 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6648 6649 DEBUG2(ql4_printk(KERN_INFO, ha, 6650 "Waiting for IP state for idx = %d, state = 0x%x\n", 6651 ip_idx[idx], ip_state)); 6652 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6653 ip_state == IP_ADDRSTATE_INVALID || 6654 ip_state == IP_ADDRSTATE_PREFERRED || 6655 ip_state == IP_ADDRSTATE_DEPRICATED || 6656 ip_state == IP_ADDRSTATE_DISABLING) 6657 ip_idx[idx] = -1; 6658 } 6659 6660 /* Break if all IP states checked */ 6661 if ((ip_idx[0] == -1) && 6662 (ip_idx[1] == -1) && 6663 (ip_idx[2] == -1) && 6664 (ip_idx[3] == -1)) 6665 break; 6666 schedule_timeout_uninterruptible(HZ); 6667 } while (time_after(wtime, jiffies)); 6668 } 6669 6670 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6671 struct dev_db_entry *flash_ddb_entry) 6672 { 6673 uint16_t options = 0; 6674 size_t ip_len = IP_ADDR_LEN; 6675 6676 options = le16_to_cpu(fw_ddb_entry->options); 6677 if (options & DDB_OPT_IPV6_DEVICE) 6678 ip_len = IPv6_ADDR_LEN; 6679 6680 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6681 return QLA_ERROR; 6682 6683 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6684 sizeof(fw_ddb_entry->isid))) 6685 return QLA_ERROR; 6686 6687 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6688 sizeof(fw_ddb_entry->port))) 6689 return QLA_ERROR; 6690 6691 return QLA_SUCCESS; 6692 } 6693 6694 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6695 struct dev_db_entry *fw_ddb_entry, 6696 uint32_t fw_idx, uint32_t *flash_index) 6697 { 6698 struct dev_db_entry *flash_ddb_entry; 6699 dma_addr_t flash_ddb_entry_dma; 6700 uint32_t idx = 0; 6701 int max_ddbs; 6702 int ret = QLA_ERROR, status; 6703 6704 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6705 MAX_DEV_DB_ENTRIES; 6706 6707 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6708 &flash_ddb_entry_dma); 6709 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6710 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6711 goto exit_find_st_idx; 6712 } 6713 6714 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6715 flash_ddb_entry_dma, fw_idx); 6716 if (status == QLA_SUCCESS) { 6717 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6718 if (status == QLA_SUCCESS) { 6719 *flash_index = fw_idx; 6720 ret = QLA_SUCCESS; 6721 goto exit_find_st_idx; 6722 } 6723 } 6724 6725 for (idx = 0; idx < max_ddbs; idx++) { 6726 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6727 flash_ddb_entry_dma, idx); 6728 if (status == QLA_ERROR) 6729 continue; 6730 6731 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6732 if (status == QLA_SUCCESS) { 6733 *flash_index = idx; 6734 ret = QLA_SUCCESS; 6735 goto exit_find_st_idx; 6736 } 6737 } 6738 6739 if (idx == max_ddbs) 6740 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6741 fw_idx); 6742 6743 exit_find_st_idx: 6744 if (flash_ddb_entry) 6745 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6746 flash_ddb_entry_dma); 6747 6748 return ret; 6749 } 6750 6751 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6752 struct list_head *list_st) 6753 { 6754 struct qla_ddb_index *st_ddb_idx; 6755 int max_ddbs; 6756 int fw_idx_size; 6757 struct dev_db_entry *fw_ddb_entry; 6758 dma_addr_t fw_ddb_dma; 6759 int ret; 6760 uint32_t idx = 0, next_idx = 0; 6761 uint32_t state = 0, conn_err = 0; 6762 uint32_t flash_index = -1; 6763 uint16_t conn_id = 0; 6764 6765 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6766 &fw_ddb_dma); 6767 if (fw_ddb_entry == NULL) { 6768 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6769 goto exit_st_list; 6770 } 6771 6772 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6773 MAX_DEV_DB_ENTRIES; 6774 fw_idx_size = sizeof(struct qla_ddb_index); 6775 6776 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6777 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6778 NULL, &next_idx, &state, 6779 &conn_err, NULL, &conn_id); 6780 if (ret == QLA_ERROR) 6781 break; 6782 6783 /* Ignore DDB if invalid state (unassigned) */ 6784 if (state == DDB_DS_UNASSIGNED) 6785 goto continue_next_st; 6786 6787 /* Check if ST, add to the list_st */ 6788 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6789 goto continue_next_st; 6790 6791 st_ddb_idx = vzalloc(fw_idx_size); 6792 if (!st_ddb_idx) 6793 break; 6794 6795 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6796 &flash_index); 6797 if (ret == QLA_ERROR) { 6798 ql4_printk(KERN_ERR, ha, 6799 "No flash entry for ST at idx [%d]\n", idx); 6800 st_ddb_idx->flash_ddb_idx = idx; 6801 } else { 6802 ql4_printk(KERN_INFO, ha, 6803 "ST at idx [%d] is stored at flash [%d]\n", 6804 idx, flash_index); 6805 st_ddb_idx->flash_ddb_idx = flash_index; 6806 } 6807 6808 st_ddb_idx->fw_ddb_idx = idx; 6809 6810 list_add_tail(&st_ddb_idx->list, list_st); 6811 continue_next_st: 6812 if (next_idx == 0) 6813 break; 6814 } 6815 6816 exit_st_list: 6817 if (fw_ddb_entry) 6818 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6819 } 6820 6821 /** 6822 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6823 * @ha: pointer to adapter structure 6824 * @list_ddb: List from which failed ddb to be removed 6825 * 6826 * Iterate over the list of DDBs and find and remove DDBs that are either in 6827 * no connection active state or failed state 6828 **/ 6829 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6830 struct list_head *list_ddb) 6831 { 6832 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6833 uint32_t next_idx = 0; 6834 uint32_t state = 0, conn_err = 0; 6835 int ret; 6836 6837 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6838 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6839 NULL, 0, NULL, &next_idx, &state, 6840 &conn_err, NULL, NULL); 6841 if (ret == QLA_ERROR) 6842 continue; 6843 6844 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6845 state == DDB_DS_SESSION_FAILED) { 6846 list_del_init(&ddb_idx->list); 6847 vfree(ddb_idx); 6848 } 6849 } 6850 } 6851 6852 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6853 struct ddb_entry *ddb_entry, 6854 struct dev_db_entry *fw_ddb_entry) 6855 { 6856 struct iscsi_cls_session *cls_sess; 6857 struct iscsi_session *sess; 6858 uint32_t max_ddbs = 0; 6859 uint16_t ddb_link = -1; 6860 6861 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6862 MAX_DEV_DB_ENTRIES; 6863 6864 cls_sess = ddb_entry->sess; 6865 sess = cls_sess->dd_data; 6866 6867 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6868 if (ddb_link < max_ddbs) 6869 sess->discovery_parent_idx = ddb_link; 6870 else 6871 sess->discovery_parent_idx = DDB_NO_LINK; 6872 } 6873 6874 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6875 struct dev_db_entry *fw_ddb_entry, 6876 int is_reset, uint16_t idx) 6877 { 6878 struct iscsi_cls_session *cls_sess; 6879 struct iscsi_session *sess; 6880 struct iscsi_cls_conn *cls_conn; 6881 struct iscsi_endpoint *ep; 6882 uint16_t cmds_max = 32; 6883 uint16_t conn_id = 0; 6884 uint32_t initial_cmdsn = 0; 6885 int ret = QLA_SUCCESS; 6886 6887 struct ddb_entry *ddb_entry = NULL; 6888 6889 /* Create session object, with INVALID_ENTRY, 6890 * the targer_id would get set when we issue the login 6891 */ 6892 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6893 cmds_max, sizeof(struct ddb_entry), 6894 sizeof(struct ql4_task_data), 6895 initial_cmdsn, INVALID_ENTRY); 6896 if (!cls_sess) { 6897 ret = QLA_ERROR; 6898 goto exit_setup; 6899 } 6900 6901 /* 6902 * so calling module_put function to decrement the 6903 * reference count. 6904 **/ 6905 module_put(qla4xxx_iscsi_transport.owner); 6906 sess = cls_sess->dd_data; 6907 ddb_entry = sess->dd_data; 6908 ddb_entry->sess = cls_sess; 6909 6910 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6911 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6912 sizeof(struct dev_db_entry)); 6913 6914 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6915 6916 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6917 6918 if (!cls_conn) { 6919 ret = QLA_ERROR; 6920 goto exit_setup; 6921 } 6922 6923 ddb_entry->conn = cls_conn; 6924 6925 /* Setup ep, for displaying attributes in sysfs */ 6926 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6927 if (ep) { 6928 ep->conn = cls_conn; 6929 cls_conn->ep = ep; 6930 } else { 6931 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6932 ret = QLA_ERROR; 6933 goto exit_setup; 6934 } 6935 6936 /* Update sess/conn params */ 6937 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6938 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6939 6940 if (is_reset == RESET_ADAPTER) { 6941 iscsi_block_session(cls_sess); 6942 /* Use the relogin path to discover new devices 6943 * by short-circuting the logic of setting 6944 * timer to relogin - instead set the flags 6945 * to initiate login right away. 6946 */ 6947 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6948 set_bit(DF_RELOGIN, &ddb_entry->flags); 6949 } 6950 6951 exit_setup: 6952 return ret; 6953 } 6954 6955 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6956 struct list_head *list_ddb, 6957 struct dev_db_entry *fw_ddb_entry) 6958 { 6959 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6960 uint16_t ddb_link; 6961 6962 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6963 6964 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6965 if (ddb_idx->fw_ddb_idx == ddb_link) { 6966 DEBUG2(ql4_printk(KERN_INFO, ha, 6967 "Updating NT parent idx from [%d] to [%d]\n", 6968 ddb_link, ddb_idx->flash_ddb_idx)); 6969 fw_ddb_entry->ddb_link = 6970 cpu_to_le16(ddb_idx->flash_ddb_idx); 6971 return; 6972 } 6973 } 6974 } 6975 6976 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 6977 struct list_head *list_nt, 6978 struct list_head *list_st, 6979 int is_reset) 6980 { 6981 struct dev_db_entry *fw_ddb_entry; 6982 struct ddb_entry *ddb_entry = NULL; 6983 dma_addr_t fw_ddb_dma; 6984 int max_ddbs; 6985 int fw_idx_size; 6986 int ret; 6987 uint32_t idx = 0, next_idx = 0; 6988 uint32_t state = 0, conn_err = 0; 6989 uint32_t ddb_idx = -1; 6990 uint16_t conn_id = 0; 6991 uint16_t ddb_link = -1; 6992 struct qla_ddb_index *nt_ddb_idx; 6993 6994 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6995 &fw_ddb_dma); 6996 if (fw_ddb_entry == NULL) { 6997 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6998 goto exit_nt_list; 6999 } 7000 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7001 MAX_DEV_DB_ENTRIES; 7002 fw_idx_size = sizeof(struct qla_ddb_index); 7003 7004 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7005 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7006 NULL, &next_idx, &state, 7007 &conn_err, NULL, &conn_id); 7008 if (ret == QLA_ERROR) 7009 break; 7010 7011 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 7012 goto continue_next_nt; 7013 7014 /* Check if NT, then add to list it */ 7015 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 7016 goto continue_next_nt; 7017 7018 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 7019 if (ddb_link < max_ddbs) 7020 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 7021 7022 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 7023 state == DDB_DS_SESSION_FAILED) && 7024 (is_reset == INIT_ADAPTER)) 7025 goto continue_next_nt; 7026 7027 DEBUG2(ql4_printk(KERN_INFO, ha, 7028 "Adding DDB to session = 0x%x\n", idx)); 7029 7030 if (is_reset == INIT_ADAPTER) { 7031 nt_ddb_idx = vmalloc(fw_idx_size); 7032 if (!nt_ddb_idx) 7033 break; 7034 7035 nt_ddb_idx->fw_ddb_idx = idx; 7036 7037 /* Copy original isid as it may get updated in function 7038 * qla4xxx_update_isid(). We need original isid in 7039 * function qla4xxx_compare_tuple_ddb to find duplicate 7040 * target */ 7041 memcpy(&nt_ddb_idx->flash_isid[0], 7042 &fw_ddb_entry->isid[0], 7043 sizeof(nt_ddb_idx->flash_isid)); 7044 7045 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7046 fw_ddb_entry); 7047 if (ret == QLA_SUCCESS) { 7048 /* free nt_ddb_idx and do not add to list_nt */ 7049 vfree(nt_ddb_idx); 7050 goto continue_next_nt; 7051 } 7052 7053 /* Copy updated isid */ 7054 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7055 sizeof(struct dev_db_entry)); 7056 7057 list_add_tail(&nt_ddb_idx->list, list_nt); 7058 } else if (is_reset == RESET_ADAPTER) { 7059 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7060 &ddb_idx); 7061 if (ret == QLA_SUCCESS) { 7062 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7063 ddb_idx); 7064 if (ddb_entry != NULL) 7065 qla4xxx_update_sess_disc_idx(ha, 7066 ddb_entry, 7067 fw_ddb_entry); 7068 goto continue_next_nt; 7069 } 7070 } 7071 7072 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7073 if (ret == QLA_ERROR) 7074 goto exit_nt_list; 7075 7076 continue_next_nt: 7077 if (next_idx == 0) 7078 break; 7079 } 7080 7081 exit_nt_list: 7082 if (fw_ddb_entry) 7083 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7084 } 7085 7086 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7087 struct list_head *list_nt, 7088 uint16_t target_id) 7089 { 7090 struct dev_db_entry *fw_ddb_entry; 7091 dma_addr_t fw_ddb_dma; 7092 int max_ddbs; 7093 int fw_idx_size; 7094 int ret; 7095 uint32_t idx = 0, next_idx = 0; 7096 uint32_t state = 0, conn_err = 0; 7097 uint16_t conn_id = 0; 7098 struct qla_ddb_index *nt_ddb_idx; 7099 7100 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7101 &fw_ddb_dma); 7102 if (fw_ddb_entry == NULL) { 7103 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7104 goto exit_new_nt_list; 7105 } 7106 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7107 MAX_DEV_DB_ENTRIES; 7108 fw_idx_size = sizeof(struct qla_ddb_index); 7109 7110 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7111 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7112 NULL, &next_idx, &state, 7113 &conn_err, NULL, &conn_id); 7114 if (ret == QLA_ERROR) 7115 break; 7116 7117 /* Check if NT, then add it to list */ 7118 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7119 goto continue_next_new_nt; 7120 7121 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7122 goto continue_next_new_nt; 7123 7124 DEBUG2(ql4_printk(KERN_INFO, ha, 7125 "Adding DDB to session = 0x%x\n", idx)); 7126 7127 nt_ddb_idx = vmalloc(fw_idx_size); 7128 if (!nt_ddb_idx) 7129 break; 7130 7131 nt_ddb_idx->fw_ddb_idx = idx; 7132 7133 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7134 if (ret == QLA_SUCCESS) { 7135 /* free nt_ddb_idx and do not add to list_nt */ 7136 vfree(nt_ddb_idx); 7137 goto continue_next_new_nt; 7138 } 7139 7140 if (target_id < max_ddbs) 7141 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7142 7143 list_add_tail(&nt_ddb_idx->list, list_nt); 7144 7145 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7146 idx); 7147 if (ret == QLA_ERROR) 7148 goto exit_new_nt_list; 7149 7150 continue_next_new_nt: 7151 if (next_idx == 0) 7152 break; 7153 } 7154 7155 exit_new_nt_list: 7156 if (fw_ddb_entry) 7157 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7158 } 7159 7160 /** 7161 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7162 * @dev: dev associated with the sysfs entry 7163 * @data: pointer to flashnode session object 7164 * 7165 * Returns: 7166 * 1: if flashnode entry is non-persistent 7167 * 0: if flashnode entry is persistent 7168 **/ 7169 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) 7170 { 7171 struct iscsi_bus_flash_session *fnode_sess; 7172 7173 if (!iscsi_flashnode_bus_match(dev, NULL)) 7174 return 0; 7175 7176 fnode_sess = iscsi_dev_to_flash_session(dev); 7177 7178 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7179 } 7180 7181 /** 7182 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7183 * @ha: pointer to host 7184 * @fw_ddb_entry: flash ddb data 7185 * @idx: target index 7186 * @user: if set then this call is made from userland else from kernel 7187 * 7188 * Returns: 7189 * On sucess: QLA_SUCCESS 7190 * On failure: QLA_ERROR 7191 * 7192 * This create separate sysfs entries for session and connection attributes of 7193 * the given fw ddb entry. 7194 * If this is invoked as a result of a userspace call then the entry is marked 7195 * as nonpersistent using flash_state field. 7196 **/ 7197 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7198 struct dev_db_entry *fw_ddb_entry, 7199 uint16_t *idx, int user) 7200 { 7201 struct iscsi_bus_flash_session *fnode_sess = NULL; 7202 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7203 int rc = QLA_ERROR; 7204 7205 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7206 &qla4xxx_iscsi_transport, 0); 7207 if (!fnode_sess) { 7208 ql4_printk(KERN_ERR, ha, 7209 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7210 __func__, *idx, ha->host_no); 7211 goto exit_tgt_create; 7212 } 7213 7214 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7215 &qla4xxx_iscsi_transport, 0); 7216 if (!fnode_conn) { 7217 ql4_printk(KERN_ERR, ha, 7218 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7219 __func__, *idx, ha->host_no); 7220 goto free_sess; 7221 } 7222 7223 if (user) { 7224 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7225 } else { 7226 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7227 7228 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7229 fnode_sess->is_boot_target = 1; 7230 else 7231 fnode_sess->is_boot_target = 0; 7232 } 7233 7234 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7235 fw_ddb_entry); 7236 if (rc) 7237 goto free_sess; 7238 7239 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7240 __func__, fnode_sess->dev.kobj.name); 7241 7242 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7243 __func__, fnode_conn->dev.kobj.name); 7244 7245 return QLA_SUCCESS; 7246 7247 free_sess: 7248 iscsi_destroy_flashnode_sess(fnode_sess); 7249 7250 exit_tgt_create: 7251 return QLA_ERROR; 7252 } 7253 7254 /** 7255 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7256 * @shost: pointer to host 7257 * @buf: type of ddb entry (ipv4/ipv6) 7258 * @len: length of buf 7259 * 7260 * This creates new ddb entry in the flash by finding first free index and 7261 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7262 **/ 7263 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7264 int len) 7265 { 7266 struct scsi_qla_host *ha = to_qla_host(shost); 7267 struct dev_db_entry *fw_ddb_entry = NULL; 7268 dma_addr_t fw_ddb_entry_dma; 7269 struct device *dev; 7270 uint16_t idx = 0; 7271 uint16_t max_ddbs = 0; 7272 uint32_t options = 0; 7273 uint32_t rval = QLA_ERROR; 7274 7275 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7276 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7277 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7278 __func__)); 7279 goto exit_ddb_add; 7280 } 7281 7282 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7283 MAX_DEV_DB_ENTRIES; 7284 7285 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7286 &fw_ddb_entry_dma, GFP_KERNEL); 7287 if (!fw_ddb_entry) { 7288 DEBUG2(ql4_printk(KERN_ERR, ha, 7289 "%s: Unable to allocate dma buffer\n", 7290 __func__)); 7291 goto exit_ddb_add; 7292 } 7293 7294 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7295 qla4xxx_sysfs_ddb_is_non_persistent); 7296 if (dev) { 7297 ql4_printk(KERN_ERR, ha, 7298 "%s: A non-persistent entry %s found\n", 7299 __func__, dev->kobj.name); 7300 put_device(dev); 7301 goto exit_ddb_add; 7302 } 7303 7304 /* Index 0 and 1 are reserved for boot target entries */ 7305 for (idx = 2; idx < max_ddbs; idx++) { 7306 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7307 fw_ddb_entry_dma, idx)) 7308 break; 7309 } 7310 7311 if (idx == max_ddbs) 7312 goto exit_ddb_add; 7313 7314 if (!strncasecmp("ipv6", buf, 4)) 7315 options |= IPV6_DEFAULT_DDB_ENTRY; 7316 7317 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7318 if (rval == QLA_ERROR) 7319 goto exit_ddb_add; 7320 7321 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7322 7323 exit_ddb_add: 7324 if (fw_ddb_entry) 7325 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7326 fw_ddb_entry, fw_ddb_entry_dma); 7327 if (rval == QLA_SUCCESS) 7328 return idx; 7329 else 7330 return -EIO; 7331 } 7332 7333 /** 7334 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7335 * @fnode_sess: pointer to session attrs of flash ddb entry 7336 * @fnode_conn: pointer to connection attrs of flash ddb entry 7337 * 7338 * This writes the contents of target ddb buffer to Flash with a valid cookie 7339 * value in order to make the ddb entry persistent. 7340 **/ 7341 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7342 struct iscsi_bus_flash_conn *fnode_conn) 7343 { 7344 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7345 struct scsi_qla_host *ha = to_qla_host(shost); 7346 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7347 struct dev_db_entry *fw_ddb_entry = NULL; 7348 dma_addr_t fw_ddb_entry_dma; 7349 uint32_t options = 0; 7350 int rval = 0; 7351 7352 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7353 &fw_ddb_entry_dma, GFP_KERNEL); 7354 if (!fw_ddb_entry) { 7355 DEBUG2(ql4_printk(KERN_ERR, ha, 7356 "%s: Unable to allocate dma buffer\n", 7357 __func__)); 7358 rval = -ENOMEM; 7359 goto exit_ddb_apply; 7360 } 7361 7362 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7363 options |= IPV6_DEFAULT_DDB_ENTRY; 7364 7365 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7366 if (rval == QLA_ERROR) 7367 goto exit_ddb_apply; 7368 7369 dev_db_start_offset += (fnode_sess->target_id * 7370 sizeof(*fw_ddb_entry)); 7371 7372 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7373 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7374 7375 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7376 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7377 7378 if (rval == QLA_SUCCESS) { 7379 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7380 ql4_printk(KERN_INFO, ha, 7381 "%s: flash node %u of host %lu written to flash\n", 7382 __func__, fnode_sess->target_id, ha->host_no); 7383 } else { 7384 rval = -EIO; 7385 ql4_printk(KERN_ERR, ha, 7386 "%s: Error while writing flash node %u of host %lu to flash\n", 7387 __func__, fnode_sess->target_id, ha->host_no); 7388 } 7389 7390 exit_ddb_apply: 7391 if (fw_ddb_entry) 7392 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7393 fw_ddb_entry, fw_ddb_entry_dma); 7394 return rval; 7395 } 7396 7397 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7398 struct dev_db_entry *fw_ddb_entry, 7399 uint16_t idx) 7400 { 7401 struct dev_db_entry *ddb_entry = NULL; 7402 dma_addr_t ddb_entry_dma; 7403 unsigned long wtime; 7404 uint32_t mbx_sts = 0; 7405 uint32_t state = 0, conn_err = 0; 7406 uint16_t tmo = 0; 7407 int ret = 0; 7408 7409 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7410 &ddb_entry_dma, GFP_KERNEL); 7411 if (!ddb_entry) { 7412 DEBUG2(ql4_printk(KERN_ERR, ha, 7413 "%s: Unable to allocate dma buffer\n", 7414 __func__)); 7415 return QLA_ERROR; 7416 } 7417 7418 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7419 7420 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7421 if (ret != QLA_SUCCESS) { 7422 DEBUG2(ql4_printk(KERN_ERR, ha, 7423 "%s: Unable to set ddb entry for index %d\n", 7424 __func__, idx)); 7425 goto exit_ddb_conn_open; 7426 } 7427 7428 qla4xxx_conn_open(ha, idx); 7429 7430 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7431 tmo = ((ha->def_timeout > LOGIN_TOV) && 7432 (ha->def_timeout < LOGIN_TOV * 10) ? 7433 ha->def_timeout : LOGIN_TOV); 7434 7435 DEBUG2(ql4_printk(KERN_INFO, ha, 7436 "Default time to wait for login to ddb %d\n", tmo)); 7437 7438 wtime = jiffies + (HZ * tmo); 7439 do { 7440 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7441 NULL, &state, &conn_err, NULL, 7442 NULL); 7443 if (ret == QLA_ERROR) 7444 continue; 7445 7446 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7447 state == DDB_DS_SESSION_FAILED) 7448 break; 7449 7450 schedule_timeout_uninterruptible(HZ / 10); 7451 } while (time_after(wtime, jiffies)); 7452 7453 exit_ddb_conn_open: 7454 if (ddb_entry) 7455 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7456 ddb_entry, ddb_entry_dma); 7457 return ret; 7458 } 7459 7460 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7461 struct dev_db_entry *fw_ddb_entry, 7462 uint16_t target_id) 7463 { 7464 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7465 struct list_head list_nt; 7466 uint16_t ddb_index; 7467 int ret = 0; 7468 7469 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7470 ql4_printk(KERN_WARNING, ha, 7471 "%s: A discovery already in progress!\n", __func__); 7472 return QLA_ERROR; 7473 } 7474 7475 INIT_LIST_HEAD(&list_nt); 7476 7477 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7478 7479 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7480 if (ret == QLA_ERROR) 7481 goto exit_login_st_clr_bit; 7482 7483 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7484 if (ret == QLA_ERROR) 7485 goto exit_login_st; 7486 7487 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7488 7489 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7490 list_del_init(&ddb_idx->list); 7491 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7492 vfree(ddb_idx); 7493 } 7494 7495 exit_login_st: 7496 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7497 ql4_printk(KERN_ERR, ha, 7498 "Unable to clear DDB index = 0x%x\n", ddb_index); 7499 } 7500 7501 clear_bit(ddb_index, ha->ddb_idx_map); 7502 7503 exit_login_st_clr_bit: 7504 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7505 return ret; 7506 } 7507 7508 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7509 struct dev_db_entry *fw_ddb_entry, 7510 uint16_t idx) 7511 { 7512 int ret = QLA_ERROR; 7513 7514 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7515 if (ret != QLA_SUCCESS) 7516 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7517 idx); 7518 else 7519 ret = -EPERM; 7520 7521 return ret; 7522 } 7523 7524 /** 7525 * qla4xxx_sysfs_ddb_login - Login to the specified target 7526 * @fnode_sess: pointer to session attrs of flash ddb entry 7527 * @fnode_conn: pointer to connection attrs of flash ddb entry 7528 * 7529 * This logs in to the specified target 7530 **/ 7531 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7532 struct iscsi_bus_flash_conn *fnode_conn) 7533 { 7534 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7535 struct scsi_qla_host *ha = to_qla_host(shost); 7536 struct dev_db_entry *fw_ddb_entry = NULL; 7537 dma_addr_t fw_ddb_entry_dma; 7538 uint32_t options = 0; 7539 int ret = 0; 7540 7541 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7542 ql4_printk(KERN_ERR, ha, 7543 "%s: Target info is not persistent\n", __func__); 7544 ret = -EIO; 7545 goto exit_ddb_login; 7546 } 7547 7548 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7549 &fw_ddb_entry_dma, GFP_KERNEL); 7550 if (!fw_ddb_entry) { 7551 DEBUG2(ql4_printk(KERN_ERR, ha, 7552 "%s: Unable to allocate dma buffer\n", 7553 __func__)); 7554 ret = -ENOMEM; 7555 goto exit_ddb_login; 7556 } 7557 7558 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7559 options |= IPV6_DEFAULT_DDB_ENTRY; 7560 7561 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7562 if (ret == QLA_ERROR) 7563 goto exit_ddb_login; 7564 7565 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7566 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7567 7568 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7569 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7570 fnode_sess->target_id); 7571 else 7572 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7573 fnode_sess->target_id); 7574 7575 if (ret > 0) 7576 ret = -EIO; 7577 7578 exit_ddb_login: 7579 if (fw_ddb_entry) 7580 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7581 fw_ddb_entry, fw_ddb_entry_dma); 7582 return ret; 7583 } 7584 7585 /** 7586 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7587 * @cls_sess: pointer to session to be logged out 7588 * 7589 * This performs session log out from the specified target 7590 **/ 7591 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7592 { 7593 struct iscsi_session *sess; 7594 struct ddb_entry *ddb_entry = NULL; 7595 struct scsi_qla_host *ha; 7596 struct dev_db_entry *fw_ddb_entry = NULL; 7597 dma_addr_t fw_ddb_entry_dma; 7598 unsigned long flags; 7599 unsigned long wtime; 7600 uint32_t ddb_state; 7601 int options; 7602 int ret = 0; 7603 7604 sess = cls_sess->dd_data; 7605 ddb_entry = sess->dd_data; 7606 ha = ddb_entry->ha; 7607 7608 if (ddb_entry->ddb_type != FLASH_DDB) { 7609 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7610 __func__); 7611 ret = -ENXIO; 7612 goto exit_ddb_logout; 7613 } 7614 7615 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7616 ql4_printk(KERN_ERR, ha, 7617 "%s: Logout from boot target entry is not permitted.\n", 7618 __func__); 7619 ret = -EPERM; 7620 goto exit_ddb_logout; 7621 } 7622 7623 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7624 &fw_ddb_entry_dma, GFP_KERNEL); 7625 if (!fw_ddb_entry) { 7626 ql4_printk(KERN_ERR, ha, 7627 "%s: Unable to allocate dma buffer\n", __func__); 7628 ret = -ENOMEM; 7629 goto exit_ddb_logout; 7630 } 7631 7632 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7633 goto ddb_logout_init; 7634 7635 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7636 fw_ddb_entry, fw_ddb_entry_dma, 7637 NULL, NULL, &ddb_state, NULL, 7638 NULL, NULL); 7639 if (ret == QLA_ERROR) 7640 goto ddb_logout_init; 7641 7642 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7643 goto ddb_logout_init; 7644 7645 /* wait until next relogin is triggered using DF_RELOGIN and 7646 * clear DF_RELOGIN to avoid invocation of further relogin 7647 */ 7648 wtime = jiffies + (HZ * RELOGIN_TOV); 7649 do { 7650 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7651 goto ddb_logout_init; 7652 7653 schedule_timeout_uninterruptible(HZ); 7654 } while ((time_after(wtime, jiffies))); 7655 7656 ddb_logout_init: 7657 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7658 atomic_set(&ddb_entry->relogin_timer, 0); 7659 7660 options = LOGOUT_OPTION_CLOSE_SESSION; 7661 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7662 7663 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7664 wtime = jiffies + (HZ * LOGOUT_TOV); 7665 do { 7666 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7667 fw_ddb_entry, fw_ddb_entry_dma, 7668 NULL, NULL, &ddb_state, NULL, 7669 NULL, NULL); 7670 if (ret == QLA_ERROR) 7671 goto ddb_logout_clr_sess; 7672 7673 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7674 (ddb_state == DDB_DS_SESSION_FAILED)) 7675 goto ddb_logout_clr_sess; 7676 7677 schedule_timeout_uninterruptible(HZ); 7678 } while ((time_after(wtime, jiffies))); 7679 7680 ddb_logout_clr_sess: 7681 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7682 /* 7683 * we have decremented the reference count of the driver 7684 * when we setup the session to have the driver unload 7685 * to be seamless without actually destroying the 7686 * session 7687 **/ 7688 try_module_get(qla4xxx_iscsi_transport.owner); 7689 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7690 7691 spin_lock_irqsave(&ha->hardware_lock, flags); 7692 qla4xxx_free_ddb(ha, ddb_entry); 7693 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7694 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7695 7696 iscsi_session_teardown(ddb_entry->sess); 7697 7698 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7699 ret = QLA_SUCCESS; 7700 7701 exit_ddb_logout: 7702 if (fw_ddb_entry) 7703 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7704 fw_ddb_entry, fw_ddb_entry_dma); 7705 return ret; 7706 } 7707 7708 /** 7709 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7710 * @fnode_sess: pointer to session attrs of flash ddb entry 7711 * @fnode_conn: pointer to connection attrs of flash ddb entry 7712 * 7713 * This performs log out from the specified target 7714 **/ 7715 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7716 struct iscsi_bus_flash_conn *fnode_conn) 7717 { 7718 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7719 struct scsi_qla_host *ha = to_qla_host(shost); 7720 struct ql4_tuple_ddb *flash_tddb = NULL; 7721 struct ql4_tuple_ddb *tmp_tddb = NULL; 7722 struct dev_db_entry *fw_ddb_entry = NULL; 7723 struct ddb_entry *ddb_entry = NULL; 7724 dma_addr_t fw_ddb_dma; 7725 uint32_t next_idx = 0; 7726 uint32_t state = 0, conn_err = 0; 7727 uint16_t conn_id = 0; 7728 int idx, index; 7729 int status, ret = 0; 7730 7731 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7732 &fw_ddb_dma); 7733 if (fw_ddb_entry == NULL) { 7734 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7735 ret = -ENOMEM; 7736 goto exit_ddb_logout; 7737 } 7738 7739 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7740 if (!flash_tddb) { 7741 ql4_printk(KERN_WARNING, ha, 7742 "%s:Memory Allocation failed.\n", __func__); 7743 ret = -ENOMEM; 7744 goto exit_ddb_logout; 7745 } 7746 7747 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7748 if (!tmp_tddb) { 7749 ql4_printk(KERN_WARNING, ha, 7750 "%s:Memory Allocation failed.\n", __func__); 7751 ret = -ENOMEM; 7752 goto exit_ddb_logout; 7753 } 7754 7755 if (!fnode_sess->targetname) { 7756 ql4_printk(KERN_ERR, ha, 7757 "%s:Cannot logout from SendTarget entry\n", 7758 __func__); 7759 ret = -EPERM; 7760 goto exit_ddb_logout; 7761 } 7762 7763 if (fnode_sess->is_boot_target) { 7764 ql4_printk(KERN_ERR, ha, 7765 "%s: Logout from boot target entry is not permitted.\n", 7766 __func__); 7767 ret = -EPERM; 7768 goto exit_ddb_logout; 7769 } 7770 7771 strlcpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7772 ISCSI_NAME_SIZE); 7773 7774 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7775 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7776 else 7777 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7778 7779 flash_tddb->tpgt = fnode_sess->tpgt; 7780 flash_tddb->port = fnode_conn->port; 7781 7782 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7783 7784 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7785 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7786 if (ddb_entry == NULL) 7787 continue; 7788 7789 if (ddb_entry->ddb_type != FLASH_DDB) 7790 continue; 7791 7792 index = ddb_entry->sess->target_id; 7793 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7794 fw_ddb_dma, NULL, &next_idx, 7795 &state, &conn_err, NULL, 7796 &conn_id); 7797 if (status == QLA_ERROR) { 7798 ret = -ENOMEM; 7799 break; 7800 } 7801 7802 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7803 7804 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7805 true); 7806 if (status == QLA_SUCCESS) { 7807 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7808 break; 7809 } 7810 } 7811 7812 if (idx == MAX_DDB_ENTRIES) 7813 ret = -ESRCH; 7814 7815 exit_ddb_logout: 7816 if (flash_tddb) 7817 vfree(flash_tddb); 7818 if (tmp_tddb) 7819 vfree(tmp_tddb); 7820 if (fw_ddb_entry) 7821 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7822 7823 return ret; 7824 } 7825 7826 static int 7827 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7828 int param, char *buf) 7829 { 7830 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7831 struct scsi_qla_host *ha = to_qla_host(shost); 7832 struct iscsi_bus_flash_conn *fnode_conn; 7833 struct ql4_chap_table chap_tbl; 7834 struct device *dev; 7835 int parent_type; 7836 int rc = 0; 7837 7838 dev = iscsi_find_flashnode_conn(fnode_sess); 7839 if (!dev) 7840 return -EIO; 7841 7842 fnode_conn = iscsi_dev_to_flash_conn(dev); 7843 7844 switch (param) { 7845 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7846 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7847 break; 7848 case ISCSI_FLASHNODE_PORTAL_TYPE: 7849 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7850 break; 7851 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7852 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7853 break; 7854 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7855 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7856 break; 7857 case ISCSI_FLASHNODE_ENTRY_EN: 7858 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7859 break; 7860 case ISCSI_FLASHNODE_HDR_DGST_EN: 7861 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7862 break; 7863 case ISCSI_FLASHNODE_DATA_DGST_EN: 7864 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7865 break; 7866 case ISCSI_FLASHNODE_IMM_DATA_EN: 7867 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7868 break; 7869 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7870 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7871 break; 7872 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7873 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7874 break; 7875 case ISCSI_FLASHNODE_PDU_INORDER: 7876 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7877 break; 7878 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7879 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7880 break; 7881 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7882 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7883 break; 7884 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7885 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7886 break; 7887 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7888 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7889 break; 7890 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7891 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7892 break; 7893 case ISCSI_FLASHNODE_ERL: 7894 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7895 break; 7896 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7897 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7898 break; 7899 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7900 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7901 break; 7902 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7903 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7904 break; 7905 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7906 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7907 break; 7908 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7909 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7910 break; 7911 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7912 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7913 break; 7914 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7915 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7916 break; 7917 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7918 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7919 break; 7920 case ISCSI_FLASHNODE_FIRST_BURST: 7921 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7922 break; 7923 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7924 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7925 break; 7926 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7927 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7928 break; 7929 case ISCSI_FLASHNODE_MAX_R2T: 7930 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7931 break; 7932 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7933 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7934 break; 7935 case ISCSI_FLASHNODE_ISID: 7936 rc = sprintf(buf, "%pm\n", fnode_sess->isid); 7937 break; 7938 case ISCSI_FLASHNODE_TSID: 7939 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7940 break; 7941 case ISCSI_FLASHNODE_PORT: 7942 rc = sprintf(buf, "%d\n", fnode_conn->port); 7943 break; 7944 case ISCSI_FLASHNODE_MAX_BURST: 7945 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7946 break; 7947 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7948 rc = sprintf(buf, "%u\n", 7949 fnode_sess->default_taskmgmt_timeout); 7950 break; 7951 case ISCSI_FLASHNODE_IPADDR: 7952 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7953 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7954 else 7955 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7956 break; 7957 case ISCSI_FLASHNODE_ALIAS: 7958 if (fnode_sess->targetalias) 7959 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7960 else 7961 rc = sprintf(buf, "\n"); 7962 break; 7963 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7964 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7965 rc = sprintf(buf, "%pI6\n", 7966 fnode_conn->redirect_ipaddr); 7967 else 7968 rc = sprintf(buf, "%pI4\n", 7969 fnode_conn->redirect_ipaddr); 7970 break; 7971 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7972 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7973 break; 7974 case ISCSI_FLASHNODE_LOCAL_PORT: 7975 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 7976 break; 7977 case ISCSI_FLASHNODE_IPV4_TOS: 7978 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 7979 break; 7980 case ISCSI_FLASHNODE_IPV6_TC: 7981 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7982 rc = sprintf(buf, "%u\n", 7983 fnode_conn->ipv6_traffic_class); 7984 else 7985 rc = sprintf(buf, "\n"); 7986 break; 7987 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 7988 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 7989 break; 7990 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 7991 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7992 rc = sprintf(buf, "%pI6\n", 7993 fnode_conn->link_local_ipv6_addr); 7994 else 7995 rc = sprintf(buf, "\n"); 7996 break; 7997 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 7998 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 7999 break; 8000 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 8001 if (fnode_sess->discovery_parent_type == DDB_ISNS) 8002 parent_type = ISCSI_DISC_PARENT_ISNS; 8003 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 8004 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8005 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 8006 parent_type = ISCSI_DISC_PARENT_SENDTGT; 8007 else 8008 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8009 8010 rc = sprintf(buf, "%s\n", 8011 iscsi_get_discovery_parent_name(parent_type)); 8012 break; 8013 case ISCSI_FLASHNODE_NAME: 8014 if (fnode_sess->targetname) 8015 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 8016 else 8017 rc = sprintf(buf, "\n"); 8018 break; 8019 case ISCSI_FLASHNODE_TPGT: 8020 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 8021 break; 8022 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8023 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 8024 break; 8025 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8026 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 8027 break; 8028 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8029 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8030 break; 8031 case ISCSI_FLASHNODE_USERNAME: 8032 if (fnode_sess->chap_auth_en) { 8033 qla4xxx_get_uni_chap_at_index(ha, 8034 chap_tbl.name, 8035 chap_tbl.secret, 8036 fnode_sess->chap_out_idx); 8037 rc = sprintf(buf, "%s\n", chap_tbl.name); 8038 } else { 8039 rc = sprintf(buf, "\n"); 8040 } 8041 break; 8042 case ISCSI_FLASHNODE_PASSWORD: 8043 if (fnode_sess->chap_auth_en) { 8044 qla4xxx_get_uni_chap_at_index(ha, 8045 chap_tbl.name, 8046 chap_tbl.secret, 8047 fnode_sess->chap_out_idx); 8048 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8049 } else { 8050 rc = sprintf(buf, "\n"); 8051 } 8052 break; 8053 case ISCSI_FLASHNODE_STATSN: 8054 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8055 break; 8056 case ISCSI_FLASHNODE_EXP_STATSN: 8057 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8058 break; 8059 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8060 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8061 break; 8062 default: 8063 rc = -ENOSYS; 8064 break; 8065 } 8066 8067 put_device(dev); 8068 return rc; 8069 } 8070 8071 /** 8072 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8073 * @fnode_sess: pointer to session attrs of flash ddb entry 8074 * @fnode_conn: pointer to connection attrs of flash ddb entry 8075 * @data: Parameters and their values to update 8076 * @len: len of data 8077 * 8078 * This sets the parameter of flash ddb entry and writes them to flash 8079 **/ 8080 static int 8081 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8082 struct iscsi_bus_flash_conn *fnode_conn, 8083 void *data, int len) 8084 { 8085 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8086 struct scsi_qla_host *ha = to_qla_host(shost); 8087 struct iscsi_flashnode_param_info *fnode_param; 8088 struct ql4_chap_table chap_tbl; 8089 struct nlattr *attr; 8090 uint16_t chap_out_idx = INVALID_ENTRY; 8091 int rc = QLA_ERROR; 8092 uint32_t rem = len; 8093 8094 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8095 nla_for_each_attr(attr, data, len, rem) { 8096 fnode_param = nla_data(attr); 8097 8098 switch (fnode_param->param) { 8099 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8100 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8101 break; 8102 case ISCSI_FLASHNODE_PORTAL_TYPE: 8103 memcpy(fnode_sess->portal_type, fnode_param->value, 8104 strlen(fnode_sess->portal_type)); 8105 break; 8106 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8107 fnode_sess->auto_snd_tgt_disable = 8108 fnode_param->value[0]; 8109 break; 8110 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8111 fnode_sess->discovery_sess = fnode_param->value[0]; 8112 break; 8113 case ISCSI_FLASHNODE_ENTRY_EN: 8114 fnode_sess->entry_state = fnode_param->value[0]; 8115 break; 8116 case ISCSI_FLASHNODE_HDR_DGST_EN: 8117 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8118 break; 8119 case ISCSI_FLASHNODE_DATA_DGST_EN: 8120 fnode_conn->datadgst_en = fnode_param->value[0]; 8121 break; 8122 case ISCSI_FLASHNODE_IMM_DATA_EN: 8123 fnode_sess->imm_data_en = fnode_param->value[0]; 8124 break; 8125 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8126 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8127 break; 8128 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8129 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8130 break; 8131 case ISCSI_FLASHNODE_PDU_INORDER: 8132 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8133 break; 8134 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8135 fnode_sess->chap_auth_en = fnode_param->value[0]; 8136 /* Invalidate chap index if chap auth is disabled */ 8137 if (!fnode_sess->chap_auth_en) 8138 fnode_sess->chap_out_idx = INVALID_ENTRY; 8139 8140 break; 8141 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8142 fnode_conn->snack_req_en = fnode_param->value[0]; 8143 break; 8144 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8145 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8146 break; 8147 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8148 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8149 break; 8150 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8151 fnode_sess->discovery_auth_optional = 8152 fnode_param->value[0]; 8153 break; 8154 case ISCSI_FLASHNODE_ERL: 8155 fnode_sess->erl = fnode_param->value[0]; 8156 break; 8157 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8158 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8159 break; 8160 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8161 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8162 break; 8163 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8164 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8165 break; 8166 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8167 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8168 break; 8169 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8170 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8171 break; 8172 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8173 fnode_conn->fragment_disable = fnode_param->value[0]; 8174 break; 8175 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8176 fnode_conn->max_recv_dlength = 8177 *(unsigned *)fnode_param->value; 8178 break; 8179 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8180 fnode_conn->max_xmit_dlength = 8181 *(unsigned *)fnode_param->value; 8182 break; 8183 case ISCSI_FLASHNODE_FIRST_BURST: 8184 fnode_sess->first_burst = 8185 *(unsigned *)fnode_param->value; 8186 break; 8187 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8188 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8189 break; 8190 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8191 fnode_sess->time2retain = 8192 *(uint16_t *)fnode_param->value; 8193 break; 8194 case ISCSI_FLASHNODE_MAX_R2T: 8195 fnode_sess->max_r2t = 8196 *(uint16_t *)fnode_param->value; 8197 break; 8198 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8199 fnode_conn->keepalive_timeout = 8200 *(uint16_t *)fnode_param->value; 8201 break; 8202 case ISCSI_FLASHNODE_ISID: 8203 memcpy(fnode_sess->isid, fnode_param->value, 8204 sizeof(fnode_sess->isid)); 8205 break; 8206 case ISCSI_FLASHNODE_TSID: 8207 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8208 break; 8209 case ISCSI_FLASHNODE_PORT: 8210 fnode_conn->port = *(uint16_t *)fnode_param->value; 8211 break; 8212 case ISCSI_FLASHNODE_MAX_BURST: 8213 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8214 break; 8215 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8216 fnode_sess->default_taskmgmt_timeout = 8217 *(uint16_t *)fnode_param->value; 8218 break; 8219 case ISCSI_FLASHNODE_IPADDR: 8220 memcpy(fnode_conn->ipaddress, fnode_param->value, 8221 IPv6_ADDR_LEN); 8222 break; 8223 case ISCSI_FLASHNODE_ALIAS: 8224 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8225 (char *)fnode_param->value); 8226 break; 8227 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8228 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8229 IPv6_ADDR_LEN); 8230 break; 8231 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8232 fnode_conn->max_segment_size = 8233 *(unsigned *)fnode_param->value; 8234 break; 8235 case ISCSI_FLASHNODE_LOCAL_PORT: 8236 fnode_conn->local_port = 8237 *(uint16_t *)fnode_param->value; 8238 break; 8239 case ISCSI_FLASHNODE_IPV4_TOS: 8240 fnode_conn->ipv4_tos = fnode_param->value[0]; 8241 break; 8242 case ISCSI_FLASHNODE_IPV6_TC: 8243 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8244 break; 8245 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8246 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8247 break; 8248 case ISCSI_FLASHNODE_NAME: 8249 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8250 (char *)fnode_param->value); 8251 break; 8252 case ISCSI_FLASHNODE_TPGT: 8253 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8254 break; 8255 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8256 memcpy(fnode_conn->link_local_ipv6_addr, 8257 fnode_param->value, IPv6_ADDR_LEN); 8258 break; 8259 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8260 fnode_sess->discovery_parent_idx = 8261 *(uint16_t *)fnode_param->value; 8262 break; 8263 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8264 fnode_conn->tcp_xmit_wsf = 8265 *(uint8_t *)fnode_param->value; 8266 break; 8267 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8268 fnode_conn->tcp_recv_wsf = 8269 *(uint8_t *)fnode_param->value; 8270 break; 8271 case ISCSI_FLASHNODE_STATSN: 8272 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8273 break; 8274 case ISCSI_FLASHNODE_EXP_STATSN: 8275 fnode_conn->exp_statsn = 8276 *(uint32_t *)fnode_param->value; 8277 break; 8278 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8279 chap_out_idx = *(uint16_t *)fnode_param->value; 8280 if (!qla4xxx_get_uni_chap_at_index(ha, 8281 chap_tbl.name, 8282 chap_tbl.secret, 8283 chap_out_idx)) { 8284 fnode_sess->chap_out_idx = chap_out_idx; 8285 /* Enable chap auth if chap index is valid */ 8286 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8287 } 8288 break; 8289 default: 8290 ql4_printk(KERN_ERR, ha, 8291 "%s: No such sysfs attribute\n", __func__); 8292 rc = -ENOSYS; 8293 goto exit_set_param; 8294 } 8295 } 8296 8297 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8298 8299 exit_set_param: 8300 return rc; 8301 } 8302 8303 /** 8304 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8305 * @fnode_sess: pointer to session attrs of flash ddb entry 8306 * 8307 * This invalidates the flash ddb entry at the given index 8308 **/ 8309 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8310 { 8311 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8312 struct scsi_qla_host *ha = to_qla_host(shost); 8313 uint32_t dev_db_start_offset; 8314 uint32_t dev_db_end_offset; 8315 struct dev_db_entry *fw_ddb_entry = NULL; 8316 dma_addr_t fw_ddb_entry_dma; 8317 uint16_t *ddb_cookie = NULL; 8318 size_t ddb_size = 0; 8319 void *pddb = NULL; 8320 int target_id; 8321 int rc = 0; 8322 8323 if (fnode_sess->is_boot_target) { 8324 rc = -EPERM; 8325 DEBUG2(ql4_printk(KERN_ERR, ha, 8326 "%s: Deletion of boot target entry is not permitted.\n", 8327 __func__)); 8328 goto exit_ddb_del; 8329 } 8330 8331 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8332 goto sysfs_ddb_del; 8333 8334 if (is_qla40XX(ha)) { 8335 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8336 dev_db_end_offset = FLASH_OFFSET_DB_END; 8337 dev_db_start_offset += (fnode_sess->target_id * 8338 sizeof(*fw_ddb_entry)); 8339 ddb_size = sizeof(*fw_ddb_entry); 8340 } else { 8341 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8342 (ha->hw.flt_region_ddb << 2); 8343 /* flt_ddb_size is DDB table size for both ports 8344 * so divide it by 2 to calculate the offset for second port 8345 */ 8346 if (ha->port_num == 1) 8347 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8348 8349 dev_db_end_offset = dev_db_start_offset + 8350 (ha->hw.flt_ddb_size / 2); 8351 8352 dev_db_start_offset += (fnode_sess->target_id * 8353 sizeof(*fw_ddb_entry)); 8354 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8355 8356 ddb_size = sizeof(*ddb_cookie); 8357 } 8358 8359 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8360 __func__, dev_db_start_offset, dev_db_end_offset)); 8361 8362 if (dev_db_start_offset > dev_db_end_offset) { 8363 rc = -EIO; 8364 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8365 __func__, fnode_sess->target_id)); 8366 goto exit_ddb_del; 8367 } 8368 8369 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8370 &fw_ddb_entry_dma, GFP_KERNEL); 8371 if (!pddb) { 8372 rc = -ENOMEM; 8373 DEBUG2(ql4_printk(KERN_ERR, ha, 8374 "%s: Unable to allocate dma buffer\n", 8375 __func__)); 8376 goto exit_ddb_del; 8377 } 8378 8379 if (is_qla40XX(ha)) { 8380 fw_ddb_entry = pddb; 8381 memset(fw_ddb_entry, 0, ddb_size); 8382 ddb_cookie = &fw_ddb_entry->cookie; 8383 } else { 8384 ddb_cookie = pddb; 8385 } 8386 8387 /* invalidate the cookie */ 8388 *ddb_cookie = 0xFFEE; 8389 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8390 ddb_size, FLASH_OPT_RMW_COMMIT); 8391 8392 sysfs_ddb_del: 8393 target_id = fnode_sess->target_id; 8394 iscsi_destroy_flashnode_sess(fnode_sess); 8395 ql4_printk(KERN_INFO, ha, 8396 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8397 __func__, target_id, ha->host_no); 8398 exit_ddb_del: 8399 if (pddb) 8400 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8401 fw_ddb_entry_dma); 8402 return rc; 8403 } 8404 8405 /** 8406 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8407 * @ha: pointer to adapter structure 8408 * 8409 * Export the firmware DDB for all send targets and normal targets to sysfs. 8410 **/ 8411 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8412 { 8413 struct dev_db_entry *fw_ddb_entry = NULL; 8414 dma_addr_t fw_ddb_entry_dma; 8415 uint16_t max_ddbs; 8416 uint16_t idx = 0; 8417 int ret = QLA_SUCCESS; 8418 8419 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8420 sizeof(*fw_ddb_entry), 8421 &fw_ddb_entry_dma, GFP_KERNEL); 8422 if (!fw_ddb_entry) { 8423 DEBUG2(ql4_printk(KERN_ERR, ha, 8424 "%s: Unable to allocate dma buffer\n", 8425 __func__)); 8426 return -ENOMEM; 8427 } 8428 8429 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8430 MAX_DEV_DB_ENTRIES; 8431 8432 for (idx = 0; idx < max_ddbs; idx++) { 8433 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8434 idx)) 8435 continue; 8436 8437 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8438 if (ret) { 8439 ret = -EIO; 8440 break; 8441 } 8442 } 8443 8444 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8445 fw_ddb_entry_dma); 8446 8447 return ret; 8448 } 8449 8450 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8451 { 8452 iscsi_destroy_all_flashnode(ha->host); 8453 } 8454 8455 /** 8456 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8457 * @ha: pointer to adapter structure 8458 * @is_reset: Is this init path or reset path 8459 * 8460 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8461 * using connection open, then create the list of normal targets (nt) 8462 * from firmware DDBs. Based on the list of nt setup session and connection 8463 * objects. 8464 **/ 8465 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8466 { 8467 uint16_t tmo = 0; 8468 struct list_head list_st, list_nt; 8469 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8470 unsigned long wtime; 8471 8472 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8473 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8474 ha->is_reset = is_reset; 8475 return; 8476 } 8477 8478 INIT_LIST_HEAD(&list_st); 8479 INIT_LIST_HEAD(&list_nt); 8480 8481 qla4xxx_build_st_list(ha, &list_st); 8482 8483 /* Before issuing conn open mbox, ensure all IPs states are configured 8484 * Note, conn open fails if IPs are not configured 8485 */ 8486 qla4xxx_wait_for_ip_configuration(ha); 8487 8488 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8489 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8490 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8491 } 8492 8493 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8494 tmo = ((ha->def_timeout > LOGIN_TOV) && 8495 (ha->def_timeout < LOGIN_TOV * 10) ? 8496 ha->def_timeout : LOGIN_TOV); 8497 8498 DEBUG2(ql4_printk(KERN_INFO, ha, 8499 "Default time to wait for build ddb %d\n", tmo)); 8500 8501 wtime = jiffies + (HZ * tmo); 8502 do { 8503 if (list_empty(&list_st)) 8504 break; 8505 8506 qla4xxx_remove_failed_ddb(ha, &list_st); 8507 schedule_timeout_uninterruptible(HZ / 10); 8508 } while (time_after(wtime, jiffies)); 8509 8510 8511 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8512 8513 qla4xxx_free_ddb_list(&list_st); 8514 qla4xxx_free_ddb_list(&list_nt); 8515 8516 qla4xxx_free_ddb_index(ha); 8517 } 8518 8519 /** 8520 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8521 * response. 8522 * @ha: pointer to adapter structure 8523 * 8524 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8525 * set in DDB and we will wait for login response of boot targets during 8526 * probe. 8527 **/ 8528 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8529 { 8530 struct ddb_entry *ddb_entry; 8531 struct dev_db_entry *fw_ddb_entry = NULL; 8532 dma_addr_t fw_ddb_entry_dma; 8533 unsigned long wtime; 8534 uint32_t ddb_state; 8535 int max_ddbs, idx, ret; 8536 8537 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8538 MAX_DEV_DB_ENTRIES; 8539 8540 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8541 &fw_ddb_entry_dma, GFP_KERNEL); 8542 if (!fw_ddb_entry) { 8543 ql4_printk(KERN_ERR, ha, 8544 "%s: Unable to allocate dma buffer\n", __func__); 8545 goto exit_login_resp; 8546 } 8547 8548 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8549 8550 for (idx = 0; idx < max_ddbs; idx++) { 8551 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8552 if (ddb_entry == NULL) 8553 continue; 8554 8555 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8556 DEBUG2(ql4_printk(KERN_INFO, ha, 8557 "%s: DDB index [%d]\n", __func__, 8558 ddb_entry->fw_ddb_index)); 8559 do { 8560 ret = qla4xxx_get_fwddb_entry(ha, 8561 ddb_entry->fw_ddb_index, 8562 fw_ddb_entry, fw_ddb_entry_dma, 8563 NULL, NULL, &ddb_state, NULL, 8564 NULL, NULL); 8565 if (ret == QLA_ERROR) 8566 goto exit_login_resp; 8567 8568 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8569 (ddb_state == DDB_DS_SESSION_FAILED)) 8570 break; 8571 8572 schedule_timeout_uninterruptible(HZ); 8573 8574 } while ((time_after(wtime, jiffies))); 8575 8576 if (!time_after(wtime, jiffies)) { 8577 DEBUG2(ql4_printk(KERN_INFO, ha, 8578 "%s: Login response wait timer expired\n", 8579 __func__)); 8580 goto exit_login_resp; 8581 } 8582 } 8583 } 8584 8585 exit_login_resp: 8586 if (fw_ddb_entry) 8587 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8588 fw_ddb_entry, fw_ddb_entry_dma); 8589 } 8590 8591 /** 8592 * qla4xxx_probe_adapter - callback function to probe HBA 8593 * @pdev: pointer to pci_dev structure 8594 * @pci_device_id: pointer to pci_device entry 8595 * 8596 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8597 * It returns zero if successful. It also initializes all data necessary for 8598 * the driver. 8599 **/ 8600 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8601 const struct pci_device_id *ent) 8602 { 8603 int ret = -ENODEV, status; 8604 struct Scsi_Host *host; 8605 struct scsi_qla_host *ha; 8606 uint8_t init_retry_count = 0; 8607 char buf[34]; 8608 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8609 uint32_t dev_state; 8610 8611 if (pci_enable_device(pdev)) 8612 return -1; 8613 8614 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8615 if (host == NULL) { 8616 printk(KERN_WARNING 8617 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8618 goto probe_disable_device; 8619 } 8620 8621 /* Clear our data area */ 8622 ha = to_qla_host(host); 8623 memset(ha, 0, sizeof(*ha)); 8624 8625 /* Save the information from PCI BIOS. */ 8626 ha->pdev = pdev; 8627 ha->host = host; 8628 ha->host_no = host->host_no; 8629 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8630 8631 pci_enable_pcie_error_reporting(pdev); 8632 8633 /* Setup Runtime configurable options */ 8634 if (is_qla8022(ha)) { 8635 ha->isp_ops = &qla4_82xx_isp_ops; 8636 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8637 ha->qdr_sn_window = -1; 8638 ha->ddr_mn_window = -1; 8639 ha->curr_window = 255; 8640 nx_legacy_intr = &legacy_intr[ha->func_num]; 8641 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8642 ha->nx_legacy_intr.tgt_status_reg = 8643 nx_legacy_intr->tgt_status_reg; 8644 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8645 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8646 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8647 ha->isp_ops = &qla4_83xx_isp_ops; 8648 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8649 } else { 8650 ha->isp_ops = &qla4xxx_isp_ops; 8651 } 8652 8653 if (is_qla80XX(ha)) { 8654 rwlock_init(&ha->hw_lock); 8655 ha->pf_bit = ha->func_num << 16; 8656 /* Set EEH reset type to fundamental if required by hba */ 8657 pdev->needs_freset = 1; 8658 } 8659 8660 /* Configure PCI I/O space. */ 8661 ret = ha->isp_ops->iospace_config(ha); 8662 if (ret) 8663 goto probe_failed_ioconfig; 8664 8665 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8666 pdev->device, pdev->irq, ha->reg); 8667 8668 qla4xxx_config_dma_addressing(ha); 8669 8670 /* Initialize lists and spinlocks. */ 8671 INIT_LIST_HEAD(&ha->free_srb_q); 8672 8673 mutex_init(&ha->mbox_sem); 8674 mutex_init(&ha->chap_sem); 8675 init_completion(&ha->mbx_intr_comp); 8676 init_completion(&ha->disable_acb_comp); 8677 init_completion(&ha->idc_comp); 8678 init_completion(&ha->link_up_comp); 8679 8680 spin_lock_init(&ha->hardware_lock); 8681 spin_lock_init(&ha->work_lock); 8682 8683 /* Initialize work list */ 8684 INIT_LIST_HEAD(&ha->work_list); 8685 8686 /* Allocate dma buffers */ 8687 if (qla4xxx_mem_alloc(ha)) { 8688 ql4_printk(KERN_WARNING, ha, 8689 "[ERROR] Failed to allocate memory for adapter\n"); 8690 8691 ret = -ENOMEM; 8692 goto probe_failed; 8693 } 8694 8695 host->cmd_per_lun = 3; 8696 host->max_channel = 0; 8697 host->max_lun = MAX_LUNS - 1; 8698 host->max_id = MAX_TARGETS; 8699 host->max_cmd_len = IOCB_MAX_CDB_LEN; 8700 host->can_queue = MAX_SRBS ; 8701 host->transportt = qla4xxx_scsi_transport; 8702 8703 pci_set_drvdata(pdev, ha); 8704 8705 ret = scsi_add_host(host, &pdev->dev); 8706 if (ret) 8707 goto probe_failed; 8708 8709 if (is_qla80XX(ha)) 8710 qla4_8xxx_get_flash_info(ha); 8711 8712 if (is_qla8032(ha) || is_qla8042(ha)) { 8713 qla4_83xx_read_reset_template(ha); 8714 /* 8715 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8716 * If DONRESET_BIT0 is set, drivers should not set dev_state 8717 * to NEED_RESET. But if NEED_RESET is set, drivers should 8718 * should honor the reset. 8719 */ 8720 if (ql4xdontresethba == 1) 8721 qla4_83xx_set_idc_dontreset(ha); 8722 } 8723 8724 /* 8725 * Initialize the Host adapter request/response queues and 8726 * firmware 8727 * NOTE: interrupts enabled upon successful completion 8728 */ 8729 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8730 8731 /* Dont retry adapter initialization if IRQ allocation failed */ 8732 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8733 goto skip_retry_init; 8734 8735 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8736 init_retry_count++ < MAX_INIT_RETRIES) { 8737 8738 if (is_qla80XX(ha)) { 8739 ha->isp_ops->idc_lock(ha); 8740 dev_state = qla4_8xxx_rd_direct(ha, 8741 QLA8XXX_CRB_DEV_STATE); 8742 ha->isp_ops->idc_unlock(ha); 8743 if (dev_state == QLA8XXX_DEV_FAILED) { 8744 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8745 "initialize adapter. H/W is in failed state\n", 8746 __func__); 8747 break; 8748 } 8749 } 8750 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8751 "(%d)\n", __func__, init_retry_count)); 8752 8753 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8754 continue; 8755 8756 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8757 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8758 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8759 goto skip_retry_init; 8760 } 8761 } 8762 8763 skip_retry_init: 8764 if (!test_bit(AF_ONLINE, &ha->flags)) { 8765 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8766 8767 if ((is_qla8022(ha) && ql4xdontresethba) || 8768 ((is_qla8032(ha) || is_qla8042(ha)) && 8769 qla4_83xx_idc_dontreset(ha))) { 8770 /* Put the device in failed state. */ 8771 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8772 ha->isp_ops->idc_lock(ha); 8773 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8774 QLA8XXX_DEV_FAILED); 8775 ha->isp_ops->idc_unlock(ha); 8776 } 8777 ret = -ENODEV; 8778 goto remove_host; 8779 } 8780 8781 /* Startup the kernel thread for this host adapter. */ 8782 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8783 "qla4xxx_dpc\n", __func__)); 8784 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8785 ha->dpc_thread = create_singlethread_workqueue(buf); 8786 if (!ha->dpc_thread) { 8787 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8788 ret = -ENODEV; 8789 goto remove_host; 8790 } 8791 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8792 8793 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8794 ha->host_no); 8795 if (!ha->task_wq) { 8796 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8797 ret = -ENODEV; 8798 goto remove_host; 8799 } 8800 8801 /* 8802 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8803 * (which is called indirectly by qla4xxx_initialize_adapter), 8804 * so that irqs will be registered after crbinit but before 8805 * mbx_intr_enable. 8806 */ 8807 if (is_qla40XX(ha)) { 8808 ret = qla4xxx_request_irqs(ha); 8809 if (ret) { 8810 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8811 "interrupt %d already in use.\n", pdev->irq); 8812 goto remove_host; 8813 } 8814 } 8815 8816 pci_save_state(ha->pdev); 8817 ha->isp_ops->enable_intrs(ha); 8818 8819 /* Start timer thread. */ 8820 qla4xxx_start_timer(ha, 1); 8821 8822 set_bit(AF_INIT_DONE, &ha->flags); 8823 8824 qla4_8xxx_alloc_sysfs_attr(ha); 8825 8826 printk(KERN_INFO 8827 " QLogic iSCSI HBA Driver version: %s\n" 8828 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8829 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8830 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8831 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8832 8833 /* Set the driver version */ 8834 if (is_qla80XX(ha)) 8835 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8836 8837 if (qla4xxx_setup_boot_info(ha)) 8838 ql4_printk(KERN_ERR, ha, 8839 "%s: No iSCSI boot target configured\n", __func__); 8840 8841 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags); 8842 /* Perform the build ddb list and login to each */ 8843 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8844 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8845 qla4xxx_wait_login_resp_boot_tgt(ha); 8846 8847 qla4xxx_create_chap_list(ha); 8848 8849 qla4xxx_create_ifaces(ha); 8850 return 0; 8851 8852 remove_host: 8853 scsi_remove_host(ha->host); 8854 8855 probe_failed: 8856 qla4xxx_free_adapter(ha); 8857 8858 probe_failed_ioconfig: 8859 pci_disable_pcie_error_reporting(pdev); 8860 scsi_host_put(ha->host); 8861 8862 probe_disable_device: 8863 pci_disable_device(pdev); 8864 8865 return ret; 8866 } 8867 8868 /** 8869 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8870 * @ha: pointer to adapter structure 8871 * 8872 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8873 * so that the other port will not re-initialize while in the process of 8874 * removing the ha due to driver unload or hba hotplug. 8875 **/ 8876 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8877 { 8878 struct scsi_qla_host *other_ha = NULL; 8879 struct pci_dev *other_pdev = NULL; 8880 int fn = ISP4XXX_PCI_FN_2; 8881 8882 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8883 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8884 fn = ISP4XXX_PCI_FN_1; 8885 8886 other_pdev = 8887 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8888 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8889 fn)); 8890 8891 /* Get other_ha if other_pdev is valid and state is enable*/ 8892 if (other_pdev) { 8893 if (atomic_read(&other_pdev->enable_cnt)) { 8894 other_ha = pci_get_drvdata(other_pdev); 8895 if (other_ha) { 8896 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8897 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8898 "Prevent %s reinit\n", __func__, 8899 dev_name(&other_ha->pdev->dev))); 8900 } 8901 } 8902 pci_dev_put(other_pdev); 8903 } 8904 } 8905 8906 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8907 struct ddb_entry *ddb_entry) 8908 { 8909 struct dev_db_entry *fw_ddb_entry = NULL; 8910 dma_addr_t fw_ddb_entry_dma; 8911 unsigned long wtime; 8912 uint32_t ddb_state; 8913 int options; 8914 int status; 8915 8916 options = LOGOUT_OPTION_CLOSE_SESSION; 8917 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8918 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8919 goto clear_ddb; 8920 } 8921 8922 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8923 &fw_ddb_entry_dma, GFP_KERNEL); 8924 if (!fw_ddb_entry) { 8925 ql4_printk(KERN_ERR, ha, 8926 "%s: Unable to allocate dma buffer\n", __func__); 8927 goto clear_ddb; 8928 } 8929 8930 wtime = jiffies + (HZ * LOGOUT_TOV); 8931 do { 8932 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8933 fw_ddb_entry, fw_ddb_entry_dma, 8934 NULL, NULL, &ddb_state, NULL, 8935 NULL, NULL); 8936 if (status == QLA_ERROR) 8937 goto free_ddb; 8938 8939 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8940 (ddb_state == DDB_DS_SESSION_FAILED)) 8941 goto free_ddb; 8942 8943 schedule_timeout_uninterruptible(HZ); 8944 } while ((time_after(wtime, jiffies))); 8945 8946 free_ddb: 8947 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8948 fw_ddb_entry, fw_ddb_entry_dma); 8949 clear_ddb: 8950 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8951 } 8952 8953 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8954 { 8955 struct ddb_entry *ddb_entry; 8956 int idx; 8957 8958 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8959 8960 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8961 if ((ddb_entry != NULL) && 8962 (ddb_entry->ddb_type == FLASH_DDB)) { 8963 8964 qla4xxx_destroy_ddb(ha, ddb_entry); 8965 /* 8966 * we have decremented the reference count of the driver 8967 * when we setup the session to have the driver unload 8968 * to be seamless without actually destroying the 8969 * session 8970 **/ 8971 try_module_get(qla4xxx_iscsi_transport.owner); 8972 iscsi_destroy_endpoint(ddb_entry->conn->ep); 8973 qla4xxx_free_ddb(ha, ddb_entry); 8974 iscsi_session_teardown(ddb_entry->sess); 8975 } 8976 } 8977 } 8978 /** 8979 * qla4xxx_remove_adapter - callback function to remove adapter. 8980 * @pci_dev: PCI device pointer 8981 **/ 8982 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 8983 { 8984 struct scsi_qla_host *ha; 8985 8986 /* 8987 * If the PCI device is disabled then it means probe_adapter had 8988 * failed and resources already cleaned up on probe_adapter exit. 8989 */ 8990 if (!pci_is_enabled(pdev)) 8991 return; 8992 8993 ha = pci_get_drvdata(pdev); 8994 8995 if (is_qla40XX(ha)) 8996 qla4xxx_prevent_other_port_reinit(ha); 8997 8998 /* destroy iface from sysfs */ 8999 qla4xxx_destroy_ifaces(ha); 9000 9001 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 9002 iscsi_boot_destroy_kset(ha->boot_kset); 9003 9004 qla4xxx_destroy_fw_ddb_session(ha); 9005 qla4_8xxx_free_sysfs_attr(ha); 9006 9007 qla4xxx_sysfs_ddb_remove(ha); 9008 scsi_remove_host(ha->host); 9009 9010 qla4xxx_free_adapter(ha); 9011 9012 scsi_host_put(ha->host); 9013 9014 pci_disable_pcie_error_reporting(pdev); 9015 pci_disable_device(pdev); 9016 } 9017 9018 /** 9019 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9020 * @ha: HA context 9021 */ 9022 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9023 { 9024 /* Update our PCI device dma_mask for full 64 bit mask */ 9025 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) { 9026 dev_dbg(&ha->pdev->dev, 9027 "Failed to set 64 bit PCI consistent mask; " 9028 "using 32 bit.\n"); 9029 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32)); 9030 } 9031 } 9032 9033 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 9034 { 9035 struct iscsi_cls_session *cls_sess; 9036 struct iscsi_session *sess; 9037 struct ddb_entry *ddb; 9038 int queue_depth = QL4_DEF_QDEPTH; 9039 9040 cls_sess = starget_to_session(sdev->sdev_target); 9041 sess = cls_sess->dd_data; 9042 ddb = sess->dd_data; 9043 9044 sdev->hostdata = ddb; 9045 9046 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9047 queue_depth = ql4xmaxqdepth; 9048 9049 scsi_change_queue_depth(sdev, queue_depth); 9050 return 0; 9051 } 9052 9053 /** 9054 * qla4xxx_del_from_active_array - returns an active srb 9055 * @ha: Pointer to host adapter structure. 9056 * @index: index into the active_array 9057 * 9058 * This routine removes and returns the srb at the specified index 9059 **/ 9060 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9061 uint32_t index) 9062 { 9063 struct srb *srb = NULL; 9064 struct scsi_cmnd *cmd = NULL; 9065 9066 cmd = scsi_host_find_tag(ha->host, index); 9067 if (!cmd) 9068 return srb; 9069 9070 srb = (struct srb *)CMD_SP(cmd); 9071 if (!srb) 9072 return srb; 9073 9074 /* update counters */ 9075 if (srb->flags & SRB_DMA_VALID) { 9076 ha->iocb_cnt -= srb->iocb_cnt; 9077 if (srb->cmd) 9078 srb->cmd->host_scribble = 9079 (unsigned char *)(unsigned long) MAX_SRBS; 9080 } 9081 return srb; 9082 } 9083 9084 /** 9085 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9086 * @ha: Pointer to host adapter structure. 9087 * @cmd: Scsi Command to wait on. 9088 * 9089 * This routine waits for the command to be returned by the Firmware 9090 * for some max time. 9091 **/ 9092 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9093 struct scsi_cmnd *cmd) 9094 { 9095 int done = 0; 9096 struct srb *rp; 9097 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9098 int ret = SUCCESS; 9099 9100 /* Dont wait on command if PCI error is being handled 9101 * by PCI AER driver 9102 */ 9103 if (unlikely(pci_channel_offline(ha->pdev)) || 9104 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9105 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9106 ha->host_no, __func__); 9107 return ret; 9108 } 9109 9110 do { 9111 /* Checking to see if its returned to OS */ 9112 rp = (struct srb *) CMD_SP(cmd); 9113 if (rp == NULL) { 9114 done++; 9115 break; 9116 } 9117 9118 msleep(2000); 9119 } while (max_wait_time--); 9120 9121 return done; 9122 } 9123 9124 /** 9125 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9126 * @ha: Pointer to host adapter structure 9127 **/ 9128 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9129 { 9130 unsigned long wait_online; 9131 9132 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9133 while (time_before(jiffies, wait_online)) { 9134 9135 if (adapter_up(ha)) 9136 return QLA_SUCCESS; 9137 9138 msleep(2000); 9139 } 9140 9141 return QLA_ERROR; 9142 } 9143 9144 /** 9145 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9146 * @ha: pointer to HBA 9147 * @t: target id 9148 * @l: lun id 9149 * 9150 * This function waits for all outstanding commands to a lun to complete. It 9151 * returns 0 if all pending commands are returned and 1 otherwise. 9152 **/ 9153 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9154 struct scsi_target *stgt, 9155 struct scsi_device *sdev) 9156 { 9157 int cnt; 9158 int status = 0; 9159 struct scsi_cmnd *cmd; 9160 9161 /* 9162 * Waiting for all commands for the designated target or dev 9163 * in the active array 9164 */ 9165 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9166 cmd = scsi_host_find_tag(ha->host, cnt); 9167 if (cmd && stgt == scsi_target(cmd->device) && 9168 (!sdev || sdev == cmd->device)) { 9169 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9170 status++; 9171 break; 9172 } 9173 } 9174 } 9175 return status; 9176 } 9177 9178 /** 9179 * qla4xxx_eh_abort - callback for abort task. 9180 * @cmd: Pointer to Linux's SCSI command structure 9181 * 9182 * This routine is called by the Linux OS to abort the specified 9183 * command. 9184 **/ 9185 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9186 { 9187 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9188 unsigned int id = cmd->device->id; 9189 uint64_t lun = cmd->device->lun; 9190 unsigned long flags; 9191 struct srb *srb = NULL; 9192 int ret = SUCCESS; 9193 int wait = 0; 9194 int rval; 9195 9196 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n", 9197 ha->host_no, id, lun, cmd, cmd->cmnd[0]); 9198 9199 rval = qla4xxx_isp_check_reg(ha); 9200 if (rval != QLA_SUCCESS) { 9201 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9202 return FAILED; 9203 } 9204 9205 spin_lock_irqsave(&ha->hardware_lock, flags); 9206 srb = (struct srb *) CMD_SP(cmd); 9207 if (!srb) { 9208 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9209 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n", 9210 ha->host_no, id, lun); 9211 return SUCCESS; 9212 } 9213 kref_get(&srb->srb_ref); 9214 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9215 9216 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9217 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n", 9218 ha->host_no, id, lun)); 9219 ret = FAILED; 9220 } else { 9221 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n", 9222 ha->host_no, id, lun)); 9223 wait = 1; 9224 } 9225 9226 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9227 9228 /* Wait for command to complete */ 9229 if (wait) { 9230 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9231 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n", 9232 ha->host_no, id, lun)); 9233 ret = FAILED; 9234 } 9235 } 9236 9237 ql4_printk(KERN_INFO, ha, 9238 "scsi%ld:%d:%llu: Abort command - %s\n", 9239 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9240 9241 return ret; 9242 } 9243 9244 /** 9245 * qla4xxx_eh_device_reset - callback for target reset. 9246 * @cmd: Pointer to Linux's SCSI command structure 9247 * 9248 * This routine is called by the Linux OS to reset all luns on the 9249 * specified target. 9250 **/ 9251 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9252 { 9253 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9254 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9255 int ret = FAILED, stat; 9256 int rval; 9257 9258 if (!ddb_entry) 9259 return ret; 9260 9261 ret = iscsi_block_scsi_eh(cmd); 9262 if (ret) 9263 return ret; 9264 ret = FAILED; 9265 9266 ql4_printk(KERN_INFO, ha, 9267 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no, 9268 cmd->device->channel, cmd->device->id, cmd->device->lun); 9269 9270 DEBUG2(printk(KERN_INFO 9271 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9272 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9273 cmd, jiffies, cmd->request->timeout / HZ, 9274 ha->dpc_flags, cmd->result, cmd->allowed)); 9275 9276 rval = qla4xxx_isp_check_reg(ha); 9277 if (rval != QLA_SUCCESS) { 9278 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9279 return FAILED; 9280 } 9281 9282 /* FIXME: wait for hba to go online */ 9283 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9284 if (stat != QLA_SUCCESS) { 9285 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9286 goto eh_dev_reset_done; 9287 } 9288 9289 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9290 cmd->device)) { 9291 ql4_printk(KERN_INFO, ha, 9292 "DEVICE RESET FAILED - waiting for " 9293 "commands.\n"); 9294 goto eh_dev_reset_done; 9295 } 9296 9297 /* Send marker. */ 9298 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9299 MM_LUN_RESET) != QLA_SUCCESS) 9300 goto eh_dev_reset_done; 9301 9302 ql4_printk(KERN_INFO, ha, 9303 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n", 9304 ha->host_no, cmd->device->channel, cmd->device->id, 9305 cmd->device->lun); 9306 9307 ret = SUCCESS; 9308 9309 eh_dev_reset_done: 9310 9311 return ret; 9312 } 9313 9314 /** 9315 * qla4xxx_eh_target_reset - callback for target reset. 9316 * @cmd: Pointer to Linux's SCSI command structure 9317 * 9318 * This routine is called by the Linux OS to reset the target. 9319 **/ 9320 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9321 { 9322 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9323 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9324 int stat, ret; 9325 int rval; 9326 9327 if (!ddb_entry) 9328 return FAILED; 9329 9330 ret = iscsi_block_scsi_eh(cmd); 9331 if (ret) 9332 return ret; 9333 9334 starget_printk(KERN_INFO, scsi_target(cmd->device), 9335 "WARM TARGET RESET ISSUED.\n"); 9336 9337 DEBUG2(printk(KERN_INFO 9338 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9339 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9340 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 9341 ha->dpc_flags, cmd->result, cmd->allowed)); 9342 9343 rval = qla4xxx_isp_check_reg(ha); 9344 if (rval != QLA_SUCCESS) { 9345 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9346 return FAILED; 9347 } 9348 9349 stat = qla4xxx_reset_target(ha, ddb_entry); 9350 if (stat != QLA_SUCCESS) { 9351 starget_printk(KERN_INFO, scsi_target(cmd->device), 9352 "WARM TARGET RESET FAILED.\n"); 9353 return FAILED; 9354 } 9355 9356 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9357 NULL)) { 9358 starget_printk(KERN_INFO, scsi_target(cmd->device), 9359 "WARM TARGET DEVICE RESET FAILED - " 9360 "waiting for commands.\n"); 9361 return FAILED; 9362 } 9363 9364 /* Send marker. */ 9365 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9366 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9367 starget_printk(KERN_INFO, scsi_target(cmd->device), 9368 "WARM TARGET DEVICE RESET FAILED - " 9369 "marker iocb failed.\n"); 9370 return FAILED; 9371 } 9372 9373 starget_printk(KERN_INFO, scsi_target(cmd->device), 9374 "WARM TARGET RESET SUCCEEDED.\n"); 9375 return SUCCESS; 9376 } 9377 9378 /** 9379 * qla4xxx_is_eh_active - check if error handler is running 9380 * @shost: Pointer to SCSI Host struct 9381 * 9382 * This routine finds that if reset host is called in EH 9383 * scenario or from some application like sg_reset 9384 **/ 9385 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9386 { 9387 if (shost->shost_state == SHOST_RECOVERY) 9388 return 1; 9389 return 0; 9390 } 9391 9392 /** 9393 * qla4xxx_eh_host_reset - kernel callback 9394 * @cmd: Pointer to Linux's SCSI command structure 9395 * 9396 * This routine is invoked by the Linux kernel to perform fatal error 9397 * recovery on the specified adapter. 9398 **/ 9399 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9400 { 9401 int return_status = FAILED; 9402 struct scsi_qla_host *ha; 9403 int rval; 9404 9405 ha = to_qla_host(cmd->device->host); 9406 9407 rval = qla4xxx_isp_check_reg(ha); 9408 if (rval != QLA_SUCCESS) { 9409 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9410 return FAILED; 9411 } 9412 9413 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9414 qla4_83xx_set_idc_dontreset(ha); 9415 9416 /* 9417 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9418 * protocol drivers, we should not set device_state to NEED_RESET 9419 */ 9420 if (ql4xdontresethba || 9421 ((is_qla8032(ha) || is_qla8042(ha)) && 9422 qla4_83xx_idc_dontreset(ha))) { 9423 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9424 ha->host_no, __func__)); 9425 9426 /* Clear outstanding srb in queues */ 9427 if (qla4xxx_is_eh_active(cmd->device->host)) 9428 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9429 9430 return FAILED; 9431 } 9432 9433 ql4_printk(KERN_INFO, ha, 9434 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no, 9435 cmd->device->channel, cmd->device->id, cmd->device->lun); 9436 9437 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9438 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9439 "DEAD.\n", ha->host_no, cmd->device->channel, 9440 __func__)); 9441 9442 return FAILED; 9443 } 9444 9445 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9446 if (is_qla80XX(ha)) 9447 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9448 else 9449 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9450 } 9451 9452 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9453 return_status = SUCCESS; 9454 9455 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9456 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9457 9458 return return_status; 9459 } 9460 9461 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9462 { 9463 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9464 uint32_t mbox_sts[MBOX_REG_COUNT]; 9465 struct addr_ctrl_blk_def *acb = NULL; 9466 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9467 int rval = QLA_SUCCESS; 9468 dma_addr_t acb_dma; 9469 9470 acb = dma_alloc_coherent(&ha->pdev->dev, 9471 sizeof(struct addr_ctrl_blk_def), 9472 &acb_dma, GFP_KERNEL); 9473 if (!acb) { 9474 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9475 __func__); 9476 rval = -ENOMEM; 9477 goto exit_port_reset; 9478 } 9479 9480 memset(acb, 0, acb_len); 9481 9482 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9483 if (rval != QLA_SUCCESS) { 9484 rval = -EIO; 9485 goto exit_free_acb; 9486 } 9487 9488 rval = qla4xxx_disable_acb(ha); 9489 if (rval != QLA_SUCCESS) { 9490 rval = -EIO; 9491 goto exit_free_acb; 9492 } 9493 9494 wait_for_completion_timeout(&ha->disable_acb_comp, 9495 DISABLE_ACB_TOV * HZ); 9496 9497 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9498 if (rval != QLA_SUCCESS) { 9499 rval = -EIO; 9500 goto exit_free_acb; 9501 } 9502 9503 exit_free_acb: 9504 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9505 acb, acb_dma); 9506 exit_port_reset: 9507 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9508 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9509 return rval; 9510 } 9511 9512 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9513 { 9514 struct scsi_qla_host *ha = to_qla_host(shost); 9515 int rval = QLA_SUCCESS; 9516 uint32_t idc_ctrl; 9517 9518 if (ql4xdontresethba) { 9519 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9520 __func__)); 9521 rval = -EPERM; 9522 goto exit_host_reset; 9523 } 9524 9525 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9526 goto recover_adapter; 9527 9528 switch (reset_type) { 9529 case SCSI_ADAPTER_RESET: 9530 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9531 break; 9532 case SCSI_FIRMWARE_RESET: 9533 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9534 if (is_qla80XX(ha)) 9535 /* set firmware context reset */ 9536 set_bit(DPC_RESET_HA_FW_CONTEXT, 9537 &ha->dpc_flags); 9538 else { 9539 rval = qla4xxx_context_reset(ha); 9540 goto exit_host_reset; 9541 } 9542 } 9543 break; 9544 } 9545 9546 recover_adapter: 9547 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9548 * reset is issued by application */ 9549 if ((is_qla8032(ha) || is_qla8042(ha)) && 9550 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9551 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9552 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9553 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9554 } 9555 9556 rval = qla4xxx_recover_adapter(ha); 9557 if (rval != QLA_SUCCESS) { 9558 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9559 __func__)); 9560 rval = -EIO; 9561 } 9562 9563 exit_host_reset: 9564 return rval; 9565 } 9566 9567 /* PCI AER driver recovers from all correctable errors w/o 9568 * driver intervention. For uncorrectable errors PCI AER 9569 * driver calls the following device driver's callbacks 9570 * 9571 * - Fatal Errors - link_reset 9572 * - Non-Fatal Errors - driver's error_detected() which 9573 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9574 * 9575 * PCI AER driver calls 9576 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled() 9577 * returns RECOVERED or NEED_RESET if fw_hung 9578 * NEED_RESET - driver's slot_reset() 9579 * DISCONNECT - device is dead & cannot recover 9580 * RECOVERED - driver's resume() 9581 */ 9582 static pci_ers_result_t 9583 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9584 { 9585 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9586 9587 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9588 ha->host_no, __func__, state); 9589 9590 if (!is_aer_supported(ha)) 9591 return PCI_ERS_RESULT_NONE; 9592 9593 switch (state) { 9594 case pci_channel_io_normal: 9595 clear_bit(AF_EEH_BUSY, &ha->flags); 9596 return PCI_ERS_RESULT_CAN_RECOVER; 9597 case pci_channel_io_frozen: 9598 set_bit(AF_EEH_BUSY, &ha->flags); 9599 qla4xxx_mailbox_premature_completion(ha); 9600 qla4xxx_free_irqs(ha); 9601 pci_disable_device(pdev); 9602 /* Return back all IOs */ 9603 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9604 return PCI_ERS_RESULT_NEED_RESET; 9605 case pci_channel_io_perm_failure: 9606 set_bit(AF_EEH_BUSY, &ha->flags); 9607 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9608 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9609 return PCI_ERS_RESULT_DISCONNECT; 9610 } 9611 return PCI_ERS_RESULT_NEED_RESET; 9612 } 9613 9614 /** 9615 * qla4xxx_pci_mmio_enabled() gets called if 9616 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9617 * and read/write to the device still works. 9618 **/ 9619 static pci_ers_result_t 9620 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9621 { 9622 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9623 9624 if (!is_aer_supported(ha)) 9625 return PCI_ERS_RESULT_NONE; 9626 9627 return PCI_ERS_RESULT_RECOVERED; 9628 } 9629 9630 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9631 { 9632 uint32_t rval = QLA_ERROR; 9633 int fn; 9634 struct pci_dev *other_pdev = NULL; 9635 9636 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9637 9638 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9639 9640 if (test_bit(AF_ONLINE, &ha->flags)) { 9641 clear_bit(AF_ONLINE, &ha->flags); 9642 clear_bit(AF_LINK_UP, &ha->flags); 9643 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9644 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9645 } 9646 9647 fn = PCI_FUNC(ha->pdev->devfn); 9648 if (is_qla8022(ha)) { 9649 while (fn > 0) { 9650 fn--; 9651 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9652 ha->host_no, __func__, fn); 9653 /* Get the pci device given the domain, bus, 9654 * slot/function number */ 9655 other_pdev = pci_get_domain_bus_and_slot( 9656 pci_domain_nr(ha->pdev->bus), 9657 ha->pdev->bus->number, 9658 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9659 fn)); 9660 9661 if (!other_pdev) 9662 continue; 9663 9664 if (atomic_read(&other_pdev->enable_cnt)) { 9665 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9666 ha->host_no, __func__, fn); 9667 pci_dev_put(other_pdev); 9668 break; 9669 } 9670 pci_dev_put(other_pdev); 9671 } 9672 } else { 9673 /* this case is meant for ISP83xx/ISP84xx only */ 9674 if (qla4_83xx_can_perform_reset(ha)) { 9675 /* reset fn as iSCSI is going to perform the reset */ 9676 fn = 0; 9677 } 9678 } 9679 9680 /* The first function on the card, the reset owner will 9681 * start & initialize the firmware. The other functions 9682 * on the card will reset the firmware context 9683 */ 9684 if (!fn) { 9685 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9686 "0x%x is the owner\n", ha->host_no, __func__, 9687 ha->pdev->devfn); 9688 9689 ha->isp_ops->idc_lock(ha); 9690 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9691 QLA8XXX_DEV_COLD); 9692 ha->isp_ops->idc_unlock(ha); 9693 9694 rval = qla4_8xxx_update_idc_reg(ha); 9695 if (rval == QLA_ERROR) { 9696 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9697 ha->host_no, __func__); 9698 ha->isp_ops->idc_lock(ha); 9699 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9700 QLA8XXX_DEV_FAILED); 9701 ha->isp_ops->idc_unlock(ha); 9702 goto exit_error_recovery; 9703 } 9704 9705 clear_bit(AF_FW_RECOVERY, &ha->flags); 9706 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9707 9708 if (rval != QLA_SUCCESS) { 9709 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9710 "FAILED\n", ha->host_no, __func__); 9711 qla4xxx_free_irqs(ha); 9712 ha->isp_ops->idc_lock(ha); 9713 qla4_8xxx_clear_drv_active(ha); 9714 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9715 QLA8XXX_DEV_FAILED); 9716 ha->isp_ops->idc_unlock(ha); 9717 } else { 9718 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9719 "READY\n", ha->host_no, __func__); 9720 ha->isp_ops->idc_lock(ha); 9721 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9722 QLA8XXX_DEV_READY); 9723 /* Clear driver state register */ 9724 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9725 qla4_8xxx_set_drv_active(ha); 9726 ha->isp_ops->idc_unlock(ha); 9727 ha->isp_ops->enable_intrs(ha); 9728 } 9729 } else { 9730 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9731 "the reset owner\n", ha->host_no, __func__, 9732 ha->pdev->devfn); 9733 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9734 QLA8XXX_DEV_READY)) { 9735 clear_bit(AF_FW_RECOVERY, &ha->flags); 9736 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9737 if (rval == QLA_SUCCESS) 9738 ha->isp_ops->enable_intrs(ha); 9739 else 9740 qla4xxx_free_irqs(ha); 9741 9742 ha->isp_ops->idc_lock(ha); 9743 qla4_8xxx_set_drv_active(ha); 9744 ha->isp_ops->idc_unlock(ha); 9745 } 9746 } 9747 exit_error_recovery: 9748 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9749 return rval; 9750 } 9751 9752 static pci_ers_result_t 9753 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9754 { 9755 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9756 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9757 int rc; 9758 9759 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9760 ha->host_no, __func__); 9761 9762 if (!is_aer_supported(ha)) 9763 return PCI_ERS_RESULT_NONE; 9764 9765 /* Restore the saved state of PCIe device - 9766 * BAR registers, PCI Config space, PCIX, MSI, 9767 * IOV states 9768 */ 9769 pci_restore_state(pdev); 9770 9771 /* pci_restore_state() clears the saved_state flag of the device 9772 * save restored state which resets saved_state flag 9773 */ 9774 pci_save_state(pdev); 9775 9776 /* Initialize device or resume if in suspended state */ 9777 rc = pci_enable_device(pdev); 9778 if (rc) { 9779 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9780 "device after reset\n", ha->host_no, __func__); 9781 goto exit_slot_reset; 9782 } 9783 9784 ha->isp_ops->disable_intrs(ha); 9785 9786 if (is_qla80XX(ha)) { 9787 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9788 ret = PCI_ERS_RESULT_RECOVERED; 9789 goto exit_slot_reset; 9790 } else 9791 goto exit_slot_reset; 9792 } 9793 9794 exit_slot_reset: 9795 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9796 "device after reset\n", ha->host_no, __func__, ret); 9797 return ret; 9798 } 9799 9800 static void 9801 qla4xxx_pci_resume(struct pci_dev *pdev) 9802 { 9803 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9804 int ret; 9805 9806 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9807 ha->host_no, __func__); 9808 9809 ret = qla4xxx_wait_for_hba_online(ha); 9810 if (ret != QLA_SUCCESS) { 9811 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9812 "resume I/O from slot/link_reset\n", ha->host_no, 9813 __func__); 9814 } 9815 9816 clear_bit(AF_EEH_BUSY, &ha->flags); 9817 } 9818 9819 static const struct pci_error_handlers qla4xxx_err_handler = { 9820 .error_detected = qla4xxx_pci_error_detected, 9821 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9822 .slot_reset = qla4xxx_pci_slot_reset, 9823 .resume = qla4xxx_pci_resume, 9824 }; 9825 9826 static struct pci_device_id qla4xxx_pci_tbl[] = { 9827 { 9828 .vendor = PCI_VENDOR_ID_QLOGIC, 9829 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9830 .subvendor = PCI_ANY_ID, 9831 .subdevice = PCI_ANY_ID, 9832 }, 9833 { 9834 .vendor = PCI_VENDOR_ID_QLOGIC, 9835 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9836 .subvendor = PCI_ANY_ID, 9837 .subdevice = PCI_ANY_ID, 9838 }, 9839 { 9840 .vendor = PCI_VENDOR_ID_QLOGIC, 9841 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9842 .subvendor = PCI_ANY_ID, 9843 .subdevice = PCI_ANY_ID, 9844 }, 9845 { 9846 .vendor = PCI_VENDOR_ID_QLOGIC, 9847 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9848 .subvendor = PCI_ANY_ID, 9849 .subdevice = PCI_ANY_ID, 9850 }, 9851 { 9852 .vendor = PCI_VENDOR_ID_QLOGIC, 9853 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9854 .subvendor = PCI_ANY_ID, 9855 .subdevice = PCI_ANY_ID, 9856 }, 9857 { 9858 .vendor = PCI_VENDOR_ID_QLOGIC, 9859 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9860 .subvendor = PCI_ANY_ID, 9861 .subdevice = PCI_ANY_ID, 9862 }, 9863 {0, 0}, 9864 }; 9865 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9866 9867 static struct pci_driver qla4xxx_pci_driver = { 9868 .name = DRIVER_NAME, 9869 .id_table = qla4xxx_pci_tbl, 9870 .probe = qla4xxx_probe_adapter, 9871 .remove = qla4xxx_remove_adapter, 9872 .err_handler = &qla4xxx_err_handler, 9873 }; 9874 9875 static int __init qla4xxx_module_init(void) 9876 { 9877 int ret; 9878 9879 if (ql4xqfulltracking) 9880 qla4xxx_driver_template.track_queue_depth = 1; 9881 9882 /* Allocate cache for SRBs. */ 9883 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9884 SLAB_HWCACHE_ALIGN, NULL); 9885 if (srb_cachep == NULL) { 9886 printk(KERN_ERR 9887 "%s: Unable to allocate SRB cache..." 9888 "Failing load!\n", DRIVER_NAME); 9889 ret = -ENOMEM; 9890 goto no_srp_cache; 9891 } 9892 9893 /* Derive version string. */ 9894 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9895 if (ql4xextended_error_logging) 9896 strcat(qla4xxx_version_str, "-debug"); 9897 9898 qla4xxx_scsi_transport = 9899 iscsi_register_transport(&qla4xxx_iscsi_transport); 9900 if (!qla4xxx_scsi_transport){ 9901 ret = -ENODEV; 9902 goto release_srb_cache; 9903 } 9904 9905 ret = pci_register_driver(&qla4xxx_pci_driver); 9906 if (ret) 9907 goto unregister_transport; 9908 9909 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9910 return 0; 9911 9912 unregister_transport: 9913 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9914 release_srb_cache: 9915 kmem_cache_destroy(srb_cachep); 9916 no_srp_cache: 9917 return ret; 9918 } 9919 9920 static void __exit qla4xxx_module_exit(void) 9921 { 9922 pci_unregister_driver(&qla4xxx_pci_driver); 9923 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9924 kmem_cache_destroy(srb_cachep); 9925 } 9926 9927 module_init(qla4xxx_module_init); 9928 module_exit(qla4xxx_module_exit); 9929 9930 MODULE_AUTHOR("QLogic Corporation"); 9931 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9932 MODULE_LICENSE("GPL"); 9933 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9934