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 int qla4xxx_slave_configure(struct scsi_device *device); 166 static void qla4xxx_slave_destroy(struct scsi_device *sdev); 167 static umode_t qla4_attr_is_visible(int param_type, int param); 168 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); 169 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 170 int reason); 171 172 /* 173 * iSCSI Flash DDB sysfs entry points 174 */ 175 static int 176 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 177 struct iscsi_bus_flash_conn *fnode_conn, 178 void *data, int len); 179 static int 180 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 181 int param, char *buf); 182 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 183 int len); 184 static int 185 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess); 186 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 187 struct iscsi_bus_flash_conn *fnode_conn); 188 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 189 struct iscsi_bus_flash_conn *fnode_conn); 190 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess); 191 192 static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 193 QLA82XX_LEGACY_INTR_CONFIG; 194 195 static struct scsi_host_template qla4xxx_driver_template = { 196 .module = THIS_MODULE, 197 .name = DRIVER_NAME, 198 .proc_name = DRIVER_NAME, 199 .queuecommand = qla4xxx_queuecommand, 200 201 .eh_abort_handler = qla4xxx_eh_abort, 202 .eh_device_reset_handler = qla4xxx_eh_device_reset, 203 .eh_target_reset_handler = qla4xxx_eh_target_reset, 204 .eh_host_reset_handler = qla4xxx_eh_host_reset, 205 .eh_timed_out = qla4xxx_eh_cmd_timed_out, 206 207 .slave_configure = qla4xxx_slave_configure, 208 .slave_alloc = qla4xxx_slave_alloc, 209 .slave_destroy = qla4xxx_slave_destroy, 210 .change_queue_depth = qla4xxx_change_queue_depth, 211 212 .this_id = -1, 213 .cmd_per_lun = 3, 214 .use_clustering = ENABLE_CLUSTERING, 215 .sg_tablesize = SG_ALL, 216 217 .max_sectors = 0xFFFF, 218 .shost_attrs = qla4xxx_host_attrs, 219 .host_reset = qla4xxx_host_reset, 220 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 221 }; 222 223 static struct iscsi_transport qla4xxx_iscsi_transport = { 224 .owner = THIS_MODULE, 225 .name = DRIVER_NAME, 226 .caps = CAP_TEXT_NEGO | 227 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 228 CAP_DATADGST | CAP_LOGIN_OFFLOAD | 229 CAP_MULTI_R2T, 230 .attr_is_visible = qla4_attr_is_visible, 231 .create_session = qla4xxx_session_create, 232 .destroy_session = qla4xxx_session_destroy, 233 .start_conn = qla4xxx_conn_start, 234 .create_conn = qla4xxx_conn_create, 235 .bind_conn = qla4xxx_conn_bind, 236 .stop_conn = iscsi_conn_stop, 237 .destroy_conn = qla4xxx_conn_destroy, 238 .set_param = iscsi_set_param, 239 .get_conn_param = qla4xxx_conn_get_param, 240 .get_session_param = qla4xxx_session_get_param, 241 .get_ep_param = qla4xxx_get_ep_param, 242 .ep_connect = qla4xxx_ep_connect, 243 .ep_poll = qla4xxx_ep_poll, 244 .ep_disconnect = qla4xxx_ep_disconnect, 245 .get_stats = qla4xxx_conn_get_stats, 246 .send_pdu = iscsi_conn_send_pdu, 247 .xmit_task = qla4xxx_task_xmit, 248 .cleanup_task = qla4xxx_task_cleanup, 249 .alloc_pdu = qla4xxx_alloc_pdu, 250 251 .get_host_param = qla4xxx_host_get_param, 252 .set_iface_param = qla4xxx_iface_set_param, 253 .get_iface_param = qla4xxx_get_iface_param, 254 .bsg_request = qla4xxx_bsg_request, 255 .send_ping = qla4xxx_send_ping, 256 .get_chap = qla4xxx_get_chap_list, 257 .delete_chap = qla4xxx_delete_chap, 258 .set_chap = qla4xxx_set_chap_entry, 259 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param, 260 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param, 261 .new_flashnode = qla4xxx_sysfs_ddb_add, 262 .del_flashnode = qla4xxx_sysfs_ddb_delete, 263 .login_flashnode = qla4xxx_sysfs_ddb_login, 264 .logout_flashnode = qla4xxx_sysfs_ddb_logout, 265 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid, 266 .get_host_stats = qla4xxx_get_host_stats, 267 }; 268 269 static struct scsi_transport_template *qla4xxx_scsi_transport; 270 271 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 272 uint32_t iface_type, uint32_t payload_size, 273 uint32_t pid, struct sockaddr *dst_addr) 274 { 275 struct scsi_qla_host *ha = to_qla_host(shost); 276 struct sockaddr_in *addr; 277 struct sockaddr_in6 *addr6; 278 uint32_t options = 0; 279 uint8_t ipaddr[IPv6_ADDR_LEN]; 280 int rval; 281 282 memset(ipaddr, 0, IPv6_ADDR_LEN); 283 /* IPv4 to IPv4 */ 284 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && 285 (dst_addr->sa_family == AF_INET)) { 286 addr = (struct sockaddr_in *)dst_addr; 287 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); 288 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " 289 "dest: %pI4\n", __func__, 290 &ha->ip_config.ip_address, ipaddr)); 291 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, 292 ipaddr); 293 if (rval) 294 rval = -EINVAL; 295 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && 296 (dst_addr->sa_family == AF_INET6)) { 297 /* IPv6 to IPv6 */ 298 addr6 = (struct sockaddr_in6 *)dst_addr; 299 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); 300 301 options |= PING_IPV6_PROTOCOL_ENABLE; 302 303 /* Ping using LinkLocal address */ 304 if ((iface_num == 0) || (iface_num == 1)) { 305 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " 306 "src: %pI6 dest: %pI6\n", __func__, 307 &ha->ip_config.ipv6_link_local_addr, 308 ipaddr)); 309 options |= PING_IPV6_LINKLOCAL_ADDR; 310 rval = qla4xxx_ping_iocb(ha, options, payload_size, 311 pid, ipaddr); 312 } else { 313 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " 314 "not supported\n", __func__, iface_num); 315 rval = -ENOSYS; 316 goto exit_send_ping; 317 } 318 319 /* 320 * If ping using LinkLocal address fails, try ping using 321 * IPv6 address 322 */ 323 if (rval != QLA_SUCCESS) { 324 options &= ~PING_IPV6_LINKLOCAL_ADDR; 325 if (iface_num == 0) { 326 options |= PING_IPV6_ADDR0; 327 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 328 "Ping src: %pI6 " 329 "dest: %pI6\n", __func__, 330 &ha->ip_config.ipv6_addr0, 331 ipaddr)); 332 } else if (iface_num == 1) { 333 options |= PING_IPV6_ADDR1; 334 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 335 "Ping src: %pI6 " 336 "dest: %pI6\n", __func__, 337 &ha->ip_config.ipv6_addr1, 338 ipaddr)); 339 } 340 rval = qla4xxx_ping_iocb(ha, options, payload_size, 341 pid, ipaddr); 342 if (rval) 343 rval = -EINVAL; 344 } 345 } else 346 rval = -ENOSYS; 347 exit_send_ping: 348 return rval; 349 } 350 351 static umode_t qla4_attr_is_visible(int param_type, int param) 352 { 353 switch (param_type) { 354 case ISCSI_HOST_PARAM: 355 switch (param) { 356 case ISCSI_HOST_PARAM_HWADDRESS: 357 case ISCSI_HOST_PARAM_IPADDRESS: 358 case ISCSI_HOST_PARAM_INITIATOR_NAME: 359 case ISCSI_HOST_PARAM_PORT_STATE: 360 case ISCSI_HOST_PARAM_PORT_SPEED: 361 return S_IRUGO; 362 default: 363 return 0; 364 } 365 case ISCSI_PARAM: 366 switch (param) { 367 case ISCSI_PARAM_PERSISTENT_ADDRESS: 368 case ISCSI_PARAM_PERSISTENT_PORT: 369 case ISCSI_PARAM_CONN_ADDRESS: 370 case ISCSI_PARAM_CONN_PORT: 371 case ISCSI_PARAM_TARGET_NAME: 372 case ISCSI_PARAM_TPGT: 373 case ISCSI_PARAM_TARGET_ALIAS: 374 case ISCSI_PARAM_MAX_BURST: 375 case ISCSI_PARAM_MAX_R2T: 376 case ISCSI_PARAM_FIRST_BURST: 377 case ISCSI_PARAM_MAX_RECV_DLENGTH: 378 case ISCSI_PARAM_MAX_XMIT_DLENGTH: 379 case ISCSI_PARAM_IFACE_NAME: 380 case ISCSI_PARAM_CHAP_OUT_IDX: 381 case ISCSI_PARAM_CHAP_IN_IDX: 382 case ISCSI_PARAM_USERNAME: 383 case ISCSI_PARAM_PASSWORD: 384 case ISCSI_PARAM_USERNAME_IN: 385 case ISCSI_PARAM_PASSWORD_IN: 386 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE: 387 case ISCSI_PARAM_DISCOVERY_SESS: 388 case ISCSI_PARAM_PORTAL_TYPE: 389 case ISCSI_PARAM_CHAP_AUTH_EN: 390 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN: 391 case ISCSI_PARAM_BIDI_CHAP_EN: 392 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL: 393 case ISCSI_PARAM_DEF_TIME2WAIT: 394 case ISCSI_PARAM_DEF_TIME2RETAIN: 395 case ISCSI_PARAM_HDRDGST_EN: 396 case ISCSI_PARAM_DATADGST_EN: 397 case ISCSI_PARAM_INITIAL_R2T_EN: 398 case ISCSI_PARAM_IMM_DATA_EN: 399 case ISCSI_PARAM_PDU_INORDER_EN: 400 case ISCSI_PARAM_DATASEQ_INORDER_EN: 401 case ISCSI_PARAM_MAX_SEGMENT_SIZE: 402 case ISCSI_PARAM_TCP_TIMESTAMP_STAT: 403 case ISCSI_PARAM_TCP_WSF_DISABLE: 404 case ISCSI_PARAM_TCP_NAGLE_DISABLE: 405 case ISCSI_PARAM_TCP_TIMER_SCALE: 406 case ISCSI_PARAM_TCP_TIMESTAMP_EN: 407 case ISCSI_PARAM_TCP_XMIT_WSF: 408 case ISCSI_PARAM_TCP_RECV_WSF: 409 case ISCSI_PARAM_IP_FRAGMENT_DISABLE: 410 case ISCSI_PARAM_IPV4_TOS: 411 case ISCSI_PARAM_IPV6_TC: 412 case ISCSI_PARAM_IPV6_FLOW_LABEL: 413 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6: 414 case ISCSI_PARAM_KEEPALIVE_TMO: 415 case ISCSI_PARAM_LOCAL_PORT: 416 case ISCSI_PARAM_ISID: 417 case ISCSI_PARAM_TSID: 418 case ISCSI_PARAM_DEF_TASKMGMT_TMO: 419 case ISCSI_PARAM_ERL: 420 case ISCSI_PARAM_STATSN: 421 case ISCSI_PARAM_EXP_STATSN: 422 case ISCSI_PARAM_DISCOVERY_PARENT_IDX: 423 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE: 424 case ISCSI_PARAM_LOCAL_IPADDR: 425 return S_IRUGO; 426 default: 427 return 0; 428 } 429 case ISCSI_NET_PARAM: 430 switch (param) { 431 case ISCSI_NET_PARAM_IPV4_ADDR: 432 case ISCSI_NET_PARAM_IPV4_SUBNET: 433 case ISCSI_NET_PARAM_IPV4_GW: 434 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 435 case ISCSI_NET_PARAM_IFACE_ENABLE: 436 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 437 case ISCSI_NET_PARAM_IPV6_ADDR: 438 case ISCSI_NET_PARAM_IPV6_ROUTER: 439 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 440 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 441 case ISCSI_NET_PARAM_VLAN_ID: 442 case ISCSI_NET_PARAM_VLAN_PRIORITY: 443 case ISCSI_NET_PARAM_VLAN_ENABLED: 444 case ISCSI_NET_PARAM_MTU: 445 case ISCSI_NET_PARAM_PORT: 446 case ISCSI_NET_PARAM_IPADDR_STATE: 447 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 448 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 449 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 450 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 451 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 452 case ISCSI_NET_PARAM_TCP_WSF: 453 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 454 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 455 case ISCSI_NET_PARAM_CACHE_ID: 456 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 457 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 458 case ISCSI_NET_PARAM_IPV4_TOS_EN: 459 case ISCSI_NET_PARAM_IPV4_TOS: 460 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 461 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 462 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 463 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 464 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 465 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 466 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 467 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 468 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 469 case ISCSI_NET_PARAM_REDIRECT_EN: 470 case ISCSI_NET_PARAM_IPV4_TTL: 471 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 472 case ISCSI_NET_PARAM_IPV6_MLD_EN: 473 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 474 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 475 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 476 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 477 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 478 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 479 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 480 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 481 return S_IRUGO; 482 default: 483 return 0; 484 } 485 case ISCSI_IFACE_PARAM: 486 switch (param) { 487 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 488 case ISCSI_IFACE_PARAM_HDRDGST_EN: 489 case ISCSI_IFACE_PARAM_DATADGST_EN: 490 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 491 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 492 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 493 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 494 case ISCSI_IFACE_PARAM_ERL: 495 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 496 case ISCSI_IFACE_PARAM_FIRST_BURST: 497 case ISCSI_IFACE_PARAM_MAX_R2T: 498 case ISCSI_IFACE_PARAM_MAX_BURST: 499 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 500 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 501 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 502 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 503 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 504 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 505 return S_IRUGO; 506 default: 507 return 0; 508 } 509 case ISCSI_FLASHNODE_PARAM: 510 switch (param) { 511 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 512 case ISCSI_FLASHNODE_PORTAL_TYPE: 513 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 514 case ISCSI_FLASHNODE_DISCOVERY_SESS: 515 case ISCSI_FLASHNODE_ENTRY_EN: 516 case ISCSI_FLASHNODE_HDR_DGST_EN: 517 case ISCSI_FLASHNODE_DATA_DGST_EN: 518 case ISCSI_FLASHNODE_IMM_DATA_EN: 519 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 520 case ISCSI_FLASHNODE_DATASEQ_INORDER: 521 case ISCSI_FLASHNODE_PDU_INORDER: 522 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 523 case ISCSI_FLASHNODE_SNACK_REQ_EN: 524 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 525 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 526 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 527 case ISCSI_FLASHNODE_ERL: 528 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 529 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 530 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 531 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 532 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 533 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 534 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 535 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 536 case ISCSI_FLASHNODE_FIRST_BURST: 537 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 538 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 539 case ISCSI_FLASHNODE_MAX_R2T: 540 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 541 case ISCSI_FLASHNODE_ISID: 542 case ISCSI_FLASHNODE_TSID: 543 case ISCSI_FLASHNODE_PORT: 544 case ISCSI_FLASHNODE_MAX_BURST: 545 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 546 case ISCSI_FLASHNODE_IPADDR: 547 case ISCSI_FLASHNODE_ALIAS: 548 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 549 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 550 case ISCSI_FLASHNODE_LOCAL_PORT: 551 case ISCSI_FLASHNODE_IPV4_TOS: 552 case ISCSI_FLASHNODE_IPV6_TC: 553 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 554 case ISCSI_FLASHNODE_NAME: 555 case ISCSI_FLASHNODE_TPGT: 556 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 557 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 558 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 559 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 560 case ISCSI_FLASHNODE_TCP_RECV_WSF: 561 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 562 case ISCSI_FLASHNODE_USERNAME: 563 case ISCSI_FLASHNODE_PASSWORD: 564 case ISCSI_FLASHNODE_STATSN: 565 case ISCSI_FLASHNODE_EXP_STATSN: 566 case ISCSI_FLASHNODE_IS_BOOT_TGT: 567 return S_IRUGO; 568 default: 569 return 0; 570 } 571 } 572 573 return 0; 574 } 575 576 /** 577 * qla4xxx_create chap_list - Create CHAP list from FLASH 578 * @ha: pointer to adapter structure 579 * 580 * Read flash and make a list of CHAP entries, during login when a CHAP entry 581 * is received, it will be checked in this list. If entry exist then the CHAP 582 * entry index is set in the DDB. If CHAP entry does not exist in this list 583 * then a new entry is added in FLASH in CHAP table and the index obtained is 584 * used in the DDB. 585 **/ 586 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 587 { 588 int rval = 0; 589 uint8_t *chap_flash_data = NULL; 590 uint32_t offset; 591 dma_addr_t chap_dma; 592 uint32_t chap_size = 0; 593 594 if (is_qla40XX(ha)) 595 chap_size = MAX_CHAP_ENTRIES_40XX * 596 sizeof(struct ql4_chap_table); 597 else /* Single region contains CHAP info for both 598 * ports which is divided into half for each port. 599 */ 600 chap_size = ha->hw.flt_chap_size / 2; 601 602 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 603 &chap_dma, GFP_KERNEL); 604 if (!chap_flash_data) { 605 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 606 return; 607 } 608 609 if (is_qla40XX(ha)) { 610 offset = FLASH_CHAP_OFFSET; 611 } else { 612 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 613 if (ha->port_num == 1) 614 offset += chap_size; 615 } 616 617 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 618 if (rval != QLA_SUCCESS) 619 goto exit_chap_list; 620 621 if (ha->chap_list == NULL) 622 ha->chap_list = vmalloc(chap_size); 623 if (ha->chap_list == NULL) { 624 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 625 goto exit_chap_list; 626 } 627 628 memset(ha->chap_list, 0, chap_size); 629 memcpy(ha->chap_list, chap_flash_data, chap_size); 630 631 exit_chap_list: 632 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma); 633 } 634 635 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha, 636 int16_t chap_index, 637 struct ql4_chap_table **chap_entry) 638 { 639 int rval = QLA_ERROR; 640 int max_chap_entries; 641 642 if (!ha->chap_list) { 643 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 644 rval = QLA_ERROR; 645 goto exit_get_chap; 646 } 647 648 if (is_qla80XX(ha)) 649 max_chap_entries = (ha->hw.flt_chap_size / 2) / 650 sizeof(struct ql4_chap_table); 651 else 652 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 653 654 if (chap_index > max_chap_entries) { 655 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n"); 656 rval = QLA_ERROR; 657 goto exit_get_chap; 658 } 659 660 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index; 661 if ((*chap_entry)->cookie != 662 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 663 rval = QLA_ERROR; 664 *chap_entry = NULL; 665 } else { 666 rval = QLA_SUCCESS; 667 } 668 669 exit_get_chap: 670 return rval; 671 } 672 673 /** 674 * qla4xxx_find_free_chap_index - Find the first free chap index 675 * @ha: pointer to adapter structure 676 * @chap_index: CHAP index to be returned 677 * 678 * Find the first free chap index available in the chap table 679 * 680 * Note: Caller should acquire the chap lock before getting here. 681 **/ 682 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha, 683 uint16_t *chap_index) 684 { 685 int i, rval; 686 int free_index = -1; 687 int max_chap_entries = 0; 688 struct ql4_chap_table *chap_table; 689 690 if (is_qla80XX(ha)) 691 max_chap_entries = (ha->hw.flt_chap_size / 2) / 692 sizeof(struct ql4_chap_table); 693 else 694 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 695 696 if (!ha->chap_list) { 697 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 698 rval = QLA_ERROR; 699 goto exit_find_chap; 700 } 701 702 for (i = 0; i < max_chap_entries; i++) { 703 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 704 705 if ((chap_table->cookie != 706 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) && 707 (i > MAX_RESRV_CHAP_IDX)) { 708 free_index = i; 709 break; 710 } 711 } 712 713 if (free_index != -1) { 714 *chap_index = free_index; 715 rval = QLA_SUCCESS; 716 } else { 717 rval = QLA_ERROR; 718 } 719 720 exit_find_chap: 721 return rval; 722 } 723 724 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 725 uint32_t *num_entries, char *buf) 726 { 727 struct scsi_qla_host *ha = to_qla_host(shost); 728 struct ql4_chap_table *chap_table; 729 struct iscsi_chap_rec *chap_rec; 730 int max_chap_entries = 0; 731 int valid_chap_entries = 0; 732 int ret = 0, i; 733 734 if (is_qla80XX(ha)) 735 max_chap_entries = (ha->hw.flt_chap_size / 2) / 736 sizeof(struct ql4_chap_table); 737 else 738 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 739 740 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 741 __func__, *num_entries, chap_tbl_idx); 742 743 if (!buf) { 744 ret = -ENOMEM; 745 goto exit_get_chap_list; 746 } 747 748 qla4xxx_create_chap_list(ha); 749 750 chap_rec = (struct iscsi_chap_rec *) buf; 751 mutex_lock(&ha->chap_sem); 752 for (i = chap_tbl_idx; i < max_chap_entries; i++) { 753 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 754 if (chap_table->cookie != 755 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) 756 continue; 757 758 chap_rec->chap_tbl_idx = i; 759 strncpy(chap_rec->username, chap_table->name, 760 ISCSI_CHAP_AUTH_NAME_MAX_LEN); 761 strncpy(chap_rec->password, chap_table->secret, 762 QL4_CHAP_MAX_SECRET_LEN); 763 chap_rec->password_length = chap_table->secret_len; 764 765 if (chap_table->flags & BIT_7) /* local */ 766 chap_rec->chap_type = CHAP_TYPE_OUT; 767 768 if (chap_table->flags & BIT_6) /* peer */ 769 chap_rec->chap_type = CHAP_TYPE_IN; 770 771 chap_rec++; 772 773 valid_chap_entries++; 774 if (valid_chap_entries == *num_entries) 775 break; 776 else 777 continue; 778 } 779 mutex_unlock(&ha->chap_sem); 780 781 exit_get_chap_list: 782 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 783 __func__, valid_chap_entries); 784 *num_entries = valid_chap_entries; 785 return ret; 786 } 787 788 static int __qla4xxx_is_chap_active(struct device *dev, void *data) 789 { 790 int ret = 0; 791 uint16_t *chap_tbl_idx = (uint16_t *) data; 792 struct iscsi_cls_session *cls_session; 793 struct iscsi_session *sess; 794 struct ddb_entry *ddb_entry; 795 796 if (!iscsi_is_session_dev(dev)) 797 goto exit_is_chap_active; 798 799 cls_session = iscsi_dev_to_session(dev); 800 sess = cls_session->dd_data; 801 ddb_entry = sess->dd_data; 802 803 if (iscsi_session_chkready(cls_session)) 804 goto exit_is_chap_active; 805 806 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 807 ret = 1; 808 809 exit_is_chap_active: 810 return ret; 811 } 812 813 static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 814 uint16_t chap_tbl_idx) 815 { 816 int ret = 0; 817 818 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 819 __qla4xxx_is_chap_active); 820 821 return ret; 822 } 823 824 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 825 { 826 struct scsi_qla_host *ha = to_qla_host(shost); 827 struct ql4_chap_table *chap_table; 828 dma_addr_t chap_dma; 829 int max_chap_entries = 0; 830 uint32_t offset = 0; 831 uint32_t chap_size; 832 int ret = 0; 833 834 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 835 if (chap_table == NULL) 836 return -ENOMEM; 837 838 memset(chap_table, 0, sizeof(struct ql4_chap_table)); 839 840 if (is_qla80XX(ha)) 841 max_chap_entries = (ha->hw.flt_chap_size / 2) / 842 sizeof(struct ql4_chap_table); 843 else 844 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 845 846 if (chap_tbl_idx > max_chap_entries) { 847 ret = -EINVAL; 848 goto exit_delete_chap; 849 } 850 851 /* Check if chap index is in use. 852 * If chap is in use don't delet chap entry */ 853 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 854 if (ret) { 855 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 856 "delete from flash\n", chap_tbl_idx); 857 ret = -EBUSY; 858 goto exit_delete_chap; 859 } 860 861 chap_size = sizeof(struct ql4_chap_table); 862 if (is_qla40XX(ha)) 863 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 864 else { 865 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 866 /* flt_chap_size is CHAP table size for both ports 867 * so divide it by 2 to calculate the offset for second port 868 */ 869 if (ha->port_num == 1) 870 offset += (ha->hw.flt_chap_size / 2); 871 offset += (chap_tbl_idx * chap_size); 872 } 873 874 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 875 if (ret != QLA_SUCCESS) { 876 ret = -EINVAL; 877 goto exit_delete_chap; 878 } 879 880 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 881 __le16_to_cpu(chap_table->cookie))); 882 883 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 884 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 885 goto exit_delete_chap; 886 } 887 888 chap_table->cookie = __constant_cpu_to_le16(0xFFFF); 889 890 offset = FLASH_CHAP_OFFSET | 891 (chap_tbl_idx * sizeof(struct ql4_chap_table)); 892 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 893 FLASH_OPT_RMW_COMMIT); 894 if (ret == QLA_SUCCESS && ha->chap_list) { 895 mutex_lock(&ha->chap_sem); 896 /* Update ha chap_list cache */ 897 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 898 chap_table, sizeof(struct ql4_chap_table)); 899 mutex_unlock(&ha->chap_sem); 900 } 901 if (ret != QLA_SUCCESS) 902 ret = -EINVAL; 903 904 exit_delete_chap: 905 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 906 return ret; 907 } 908 909 /** 910 * qla4xxx_set_chap_entry - Make chap entry with given information 911 * @shost: pointer to host 912 * @data: chap info - credentials, index and type to make chap entry 913 * @len: length of data 914 * 915 * Add or update chap entry with the given information 916 **/ 917 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len) 918 { 919 struct scsi_qla_host *ha = to_qla_host(shost); 920 struct iscsi_chap_rec chap_rec; 921 struct ql4_chap_table *chap_entry = NULL; 922 struct iscsi_param_info *param_info; 923 struct nlattr *attr; 924 int max_chap_entries = 0; 925 int type; 926 int rem = len; 927 int rc = 0; 928 int size; 929 930 memset(&chap_rec, 0, sizeof(chap_rec)); 931 932 nla_for_each_attr(attr, data, len, rem) { 933 param_info = nla_data(attr); 934 935 switch (param_info->param) { 936 case ISCSI_CHAP_PARAM_INDEX: 937 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value; 938 break; 939 case ISCSI_CHAP_PARAM_CHAP_TYPE: 940 chap_rec.chap_type = param_info->value[0]; 941 break; 942 case ISCSI_CHAP_PARAM_USERNAME: 943 size = min_t(size_t, sizeof(chap_rec.username), 944 param_info->len); 945 memcpy(chap_rec.username, param_info->value, size); 946 break; 947 case ISCSI_CHAP_PARAM_PASSWORD: 948 size = min_t(size_t, sizeof(chap_rec.password), 949 param_info->len); 950 memcpy(chap_rec.password, param_info->value, size); 951 break; 952 case ISCSI_CHAP_PARAM_PASSWORD_LEN: 953 chap_rec.password_length = param_info->value[0]; 954 break; 955 default: 956 ql4_printk(KERN_ERR, ha, 957 "%s: No such sysfs attribute\n", __func__); 958 rc = -ENOSYS; 959 goto exit_set_chap; 960 }; 961 } 962 963 if (chap_rec.chap_type == CHAP_TYPE_IN) 964 type = BIDI_CHAP; 965 else 966 type = LOCAL_CHAP; 967 968 if (is_qla80XX(ha)) 969 max_chap_entries = (ha->hw.flt_chap_size / 2) / 970 sizeof(struct ql4_chap_table); 971 else 972 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 973 974 mutex_lock(&ha->chap_sem); 975 if (chap_rec.chap_tbl_idx < max_chap_entries) { 976 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx, 977 &chap_entry); 978 if (!rc) { 979 if (!(type == qla4xxx_get_chap_type(chap_entry))) { 980 ql4_printk(KERN_INFO, ha, 981 "Type mismatch for CHAP entry %d\n", 982 chap_rec.chap_tbl_idx); 983 rc = -EINVAL; 984 goto exit_unlock_chap; 985 } 986 987 /* If chap index is in use then don't modify it */ 988 rc = qla4xxx_is_chap_active(shost, 989 chap_rec.chap_tbl_idx); 990 if (rc) { 991 ql4_printk(KERN_INFO, ha, 992 "CHAP entry %d is in use\n", 993 chap_rec.chap_tbl_idx); 994 rc = -EBUSY; 995 goto exit_unlock_chap; 996 } 997 } 998 } else { 999 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx); 1000 if (rc) { 1001 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n"); 1002 rc = -EBUSY; 1003 goto exit_unlock_chap; 1004 } 1005 } 1006 1007 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password, 1008 chap_rec.chap_tbl_idx, type); 1009 1010 exit_unlock_chap: 1011 mutex_unlock(&ha->chap_sem); 1012 1013 exit_set_chap: 1014 return rc; 1015 } 1016 1017 1018 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len) 1019 { 1020 struct scsi_qla_host *ha = to_qla_host(shost); 1021 struct iscsi_offload_host_stats *host_stats = NULL; 1022 int host_stats_size; 1023 int ret = 0; 1024 int ddb_idx = 0; 1025 struct ql_iscsi_stats *ql_iscsi_stats = NULL; 1026 int stats_size; 1027 dma_addr_t iscsi_stats_dma; 1028 1029 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__)); 1030 1031 host_stats_size = sizeof(struct iscsi_offload_host_stats); 1032 1033 if (host_stats_size != len) { 1034 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n", 1035 __func__, len, host_stats_size); 1036 ret = -EINVAL; 1037 goto exit_host_stats; 1038 } 1039 host_stats = (struct iscsi_offload_host_stats *)buf; 1040 1041 if (!buf) { 1042 ret = -ENOMEM; 1043 goto exit_host_stats; 1044 } 1045 1046 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1047 1048 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1049 &iscsi_stats_dma, GFP_KERNEL); 1050 if (!ql_iscsi_stats) { 1051 ql4_printk(KERN_ERR, ha, 1052 "Unable to allocate memory for iscsi stats\n"); 1053 goto exit_host_stats; 1054 } 1055 1056 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size, 1057 iscsi_stats_dma); 1058 if (ret != QLA_SUCCESS) { 1059 ql4_printk(KERN_ERR, ha, 1060 "Unable to retrieve iscsi stats\n"); 1061 goto exit_host_stats; 1062 } 1063 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames); 1064 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes); 1065 host_stats->mactx_multicast_frames = 1066 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames); 1067 host_stats->mactx_broadcast_frames = 1068 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames); 1069 host_stats->mactx_pause_frames = 1070 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames); 1071 host_stats->mactx_control_frames = 1072 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames); 1073 host_stats->mactx_deferral = 1074 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral); 1075 host_stats->mactx_excess_deferral = 1076 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral); 1077 host_stats->mactx_late_collision = 1078 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision); 1079 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort); 1080 host_stats->mactx_single_collision = 1081 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision); 1082 host_stats->mactx_multiple_collision = 1083 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision); 1084 host_stats->mactx_collision = 1085 le64_to_cpu(ql_iscsi_stats->mac_tx_collision); 1086 host_stats->mactx_frames_dropped = 1087 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped); 1088 host_stats->mactx_jumbo_frames = 1089 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames); 1090 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames); 1091 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes); 1092 host_stats->macrx_unknown_control_frames = 1093 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames); 1094 host_stats->macrx_pause_frames = 1095 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames); 1096 host_stats->macrx_control_frames = 1097 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames); 1098 host_stats->macrx_dribble = 1099 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble); 1100 host_stats->macrx_frame_length_error = 1101 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error); 1102 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber); 1103 host_stats->macrx_carrier_sense_error = 1104 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error); 1105 host_stats->macrx_frame_discarded = 1106 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded); 1107 host_stats->macrx_frames_dropped = 1108 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped); 1109 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error); 1110 host_stats->mac_encoding_error = 1111 le64_to_cpu(ql_iscsi_stats->mac_encoding_error); 1112 host_stats->macrx_length_error_large = 1113 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large); 1114 host_stats->macrx_length_error_small = 1115 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small); 1116 host_stats->macrx_multicast_frames = 1117 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames); 1118 host_stats->macrx_broadcast_frames = 1119 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames); 1120 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets); 1121 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes); 1122 host_stats->iptx_fragments = 1123 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments); 1124 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets); 1125 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes); 1126 host_stats->iprx_fragments = 1127 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments); 1128 host_stats->ip_datagram_reassembly = 1129 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly); 1130 host_stats->ip_invalid_address_error = 1131 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error); 1132 host_stats->ip_error_packets = 1133 le64_to_cpu(ql_iscsi_stats->ip_error_packets); 1134 host_stats->ip_fragrx_overlap = 1135 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap); 1136 host_stats->ip_fragrx_outoforder = 1137 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder); 1138 host_stats->ip_datagram_reassembly_timeout = 1139 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout); 1140 host_stats->ipv6tx_packets = 1141 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets); 1142 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes); 1143 host_stats->ipv6tx_fragments = 1144 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments); 1145 host_stats->ipv6rx_packets = 1146 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets); 1147 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes); 1148 host_stats->ipv6rx_fragments = 1149 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments); 1150 host_stats->ipv6_datagram_reassembly = 1151 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly); 1152 host_stats->ipv6_invalid_address_error = 1153 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error); 1154 host_stats->ipv6_error_packets = 1155 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets); 1156 host_stats->ipv6_fragrx_overlap = 1157 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap); 1158 host_stats->ipv6_fragrx_outoforder = 1159 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder); 1160 host_stats->ipv6_datagram_reassembly_timeout = 1161 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout); 1162 host_stats->tcptx_segments = 1163 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments); 1164 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes); 1165 host_stats->tcprx_segments = 1166 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments); 1167 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte); 1168 host_stats->tcp_duplicate_ack_retx = 1169 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx); 1170 host_stats->tcp_retx_timer_expired = 1171 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired); 1172 host_stats->tcprx_duplicate_ack = 1173 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack); 1174 host_stats->tcprx_pure_ackr = 1175 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr); 1176 host_stats->tcptx_delayed_ack = 1177 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack); 1178 host_stats->tcptx_pure_ack = 1179 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack); 1180 host_stats->tcprx_segment_error = 1181 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error); 1182 host_stats->tcprx_segment_outoforder = 1183 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder); 1184 host_stats->tcprx_window_probe = 1185 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe); 1186 host_stats->tcprx_window_update = 1187 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update); 1188 host_stats->tcptx_window_probe_persist = 1189 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist); 1190 host_stats->ecc_error_correction = 1191 le64_to_cpu(ql_iscsi_stats->ecc_error_correction); 1192 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx); 1193 host_stats->iscsi_data_bytes_tx = 1194 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx); 1195 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx); 1196 host_stats->iscsi_data_bytes_rx = 1197 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx); 1198 host_stats->iscsi_io_completed = 1199 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed); 1200 host_stats->iscsi_unexpected_io_rx = 1201 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx); 1202 host_stats->iscsi_format_error = 1203 le64_to_cpu(ql_iscsi_stats->iscsi_format_error); 1204 host_stats->iscsi_hdr_digest_error = 1205 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error); 1206 host_stats->iscsi_data_digest_error = 1207 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error); 1208 host_stats->iscsi_sequence_error = 1209 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error); 1210 exit_host_stats: 1211 if (ql_iscsi_stats) 1212 dma_free_coherent(&ha->pdev->dev, host_stats_size, 1213 ql_iscsi_stats, iscsi_stats_dma); 1214 1215 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n", 1216 __func__); 1217 return ret; 1218 } 1219 1220 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 1221 enum iscsi_param_type param_type, 1222 int param, char *buf) 1223 { 1224 struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 1225 struct scsi_qla_host *ha = to_qla_host(shost); 1226 int ival; 1227 char *pval = NULL; 1228 int len = -ENOSYS; 1229 1230 if (param_type == ISCSI_NET_PARAM) { 1231 switch (param) { 1232 case ISCSI_NET_PARAM_IPV4_ADDR: 1233 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1234 break; 1235 case ISCSI_NET_PARAM_IPV4_SUBNET: 1236 len = sprintf(buf, "%pI4\n", 1237 &ha->ip_config.subnet_mask); 1238 break; 1239 case ISCSI_NET_PARAM_IPV4_GW: 1240 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 1241 break; 1242 case ISCSI_NET_PARAM_IFACE_ENABLE: 1243 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1244 OP_STATE(ha->ip_config.ipv4_options, 1245 IPOPT_IPV4_PROTOCOL_ENABLE, pval); 1246 } else { 1247 OP_STATE(ha->ip_config.ipv6_options, 1248 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval); 1249 } 1250 1251 len = sprintf(buf, "%s\n", pval); 1252 break; 1253 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1254 len = sprintf(buf, "%s\n", 1255 (ha->ip_config.tcp_options & 1256 TCPOPT_DHCP_ENABLE) ? 1257 "dhcp" : "static"); 1258 break; 1259 case ISCSI_NET_PARAM_IPV6_ADDR: 1260 if (iface->iface_num == 0) 1261 len = sprintf(buf, "%pI6\n", 1262 &ha->ip_config.ipv6_addr0); 1263 if (iface->iface_num == 1) 1264 len = sprintf(buf, "%pI6\n", 1265 &ha->ip_config.ipv6_addr1); 1266 break; 1267 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1268 len = sprintf(buf, "%pI6\n", 1269 &ha->ip_config.ipv6_link_local_addr); 1270 break; 1271 case ISCSI_NET_PARAM_IPV6_ROUTER: 1272 len = sprintf(buf, "%pI6\n", 1273 &ha->ip_config.ipv6_default_router_addr); 1274 break; 1275 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1276 pval = (ha->ip_config.ipv6_addl_options & 1277 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 1278 "nd" : "static"; 1279 1280 len = sprintf(buf, "%s\n", pval); 1281 break; 1282 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1283 pval = (ha->ip_config.ipv6_addl_options & 1284 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 1285 "auto" : "static"; 1286 1287 len = sprintf(buf, "%s\n", pval); 1288 break; 1289 case ISCSI_NET_PARAM_VLAN_ID: 1290 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1291 ival = ha->ip_config.ipv4_vlan_tag & 1292 ISCSI_MAX_VLAN_ID; 1293 else 1294 ival = ha->ip_config.ipv6_vlan_tag & 1295 ISCSI_MAX_VLAN_ID; 1296 1297 len = sprintf(buf, "%d\n", ival); 1298 break; 1299 case ISCSI_NET_PARAM_VLAN_PRIORITY: 1300 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1301 ival = (ha->ip_config.ipv4_vlan_tag >> 13) & 1302 ISCSI_MAX_VLAN_PRIORITY; 1303 else 1304 ival = (ha->ip_config.ipv6_vlan_tag >> 13) & 1305 ISCSI_MAX_VLAN_PRIORITY; 1306 1307 len = sprintf(buf, "%d\n", ival); 1308 break; 1309 case ISCSI_NET_PARAM_VLAN_ENABLED: 1310 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1311 OP_STATE(ha->ip_config.ipv4_options, 1312 IPOPT_VLAN_TAGGING_ENABLE, pval); 1313 } else { 1314 OP_STATE(ha->ip_config.ipv6_options, 1315 IPV6_OPT_VLAN_TAGGING_ENABLE, pval); 1316 } 1317 len = sprintf(buf, "%s\n", pval); 1318 break; 1319 case ISCSI_NET_PARAM_MTU: 1320 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 1321 break; 1322 case ISCSI_NET_PARAM_PORT: 1323 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1324 len = sprintf(buf, "%d\n", 1325 ha->ip_config.ipv4_port); 1326 else 1327 len = sprintf(buf, "%d\n", 1328 ha->ip_config.ipv6_port); 1329 break; 1330 case ISCSI_NET_PARAM_IPADDR_STATE: 1331 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1332 pval = iscsi_get_ipaddress_state_name( 1333 ha->ip_config.ipv4_addr_state); 1334 } else { 1335 if (iface->iface_num == 0) 1336 pval = iscsi_get_ipaddress_state_name( 1337 ha->ip_config.ipv6_addr0_state); 1338 else if (iface->iface_num == 1) 1339 pval = iscsi_get_ipaddress_state_name( 1340 ha->ip_config.ipv6_addr1_state); 1341 } 1342 1343 len = sprintf(buf, "%s\n", pval); 1344 break; 1345 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 1346 pval = iscsi_get_ipaddress_state_name( 1347 ha->ip_config.ipv6_link_local_state); 1348 len = sprintf(buf, "%s\n", pval); 1349 break; 1350 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 1351 pval = iscsi_get_router_state_name( 1352 ha->ip_config.ipv6_default_router_state); 1353 len = sprintf(buf, "%s\n", pval); 1354 break; 1355 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 1356 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1357 OP_STATE(~ha->ip_config.tcp_options, 1358 TCPOPT_DELAYED_ACK_DISABLE, pval); 1359 } else { 1360 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1361 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval); 1362 } 1363 len = sprintf(buf, "%s\n", pval); 1364 break; 1365 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 1366 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1367 OP_STATE(~ha->ip_config.tcp_options, 1368 TCPOPT_NAGLE_ALGO_DISABLE, pval); 1369 } else { 1370 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1371 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval); 1372 } 1373 len = sprintf(buf, "%s\n", pval); 1374 break; 1375 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 1376 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1377 OP_STATE(~ha->ip_config.tcp_options, 1378 TCPOPT_WINDOW_SCALE_DISABLE, pval); 1379 } else { 1380 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1381 IPV6_TCPOPT_WINDOW_SCALE_DISABLE, 1382 pval); 1383 } 1384 len = sprintf(buf, "%s\n", pval); 1385 break; 1386 case ISCSI_NET_PARAM_TCP_WSF: 1387 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1388 len = sprintf(buf, "%d\n", 1389 ha->ip_config.tcp_wsf); 1390 else 1391 len = sprintf(buf, "%d\n", 1392 ha->ip_config.ipv6_tcp_wsf); 1393 break; 1394 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 1395 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1396 ival = (ha->ip_config.tcp_options & 1397 TCPOPT_TIMER_SCALE) >> 1; 1398 else 1399 ival = (ha->ip_config.ipv6_tcp_options & 1400 IPV6_TCPOPT_TIMER_SCALE) >> 1; 1401 1402 len = sprintf(buf, "%d\n", ival); 1403 break; 1404 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 1405 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1406 OP_STATE(ha->ip_config.tcp_options, 1407 TCPOPT_TIMESTAMP_ENABLE, pval); 1408 } else { 1409 OP_STATE(ha->ip_config.ipv6_tcp_options, 1410 IPV6_TCPOPT_TIMESTAMP_EN, pval); 1411 } 1412 len = sprintf(buf, "%s\n", pval); 1413 break; 1414 case ISCSI_NET_PARAM_CACHE_ID: 1415 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1416 len = sprintf(buf, "%d\n", 1417 ha->ip_config.ipv4_cache_id); 1418 else 1419 len = sprintf(buf, "%d\n", 1420 ha->ip_config.ipv6_cache_id); 1421 break; 1422 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 1423 OP_STATE(ha->ip_config.tcp_options, 1424 TCPOPT_DNS_SERVER_IP_EN, pval); 1425 1426 len = sprintf(buf, "%s\n", pval); 1427 break; 1428 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 1429 OP_STATE(ha->ip_config.tcp_options, 1430 TCPOPT_SLP_DA_INFO_EN, pval); 1431 1432 len = sprintf(buf, "%s\n", pval); 1433 break; 1434 case ISCSI_NET_PARAM_IPV4_TOS_EN: 1435 OP_STATE(ha->ip_config.ipv4_options, 1436 IPOPT_IPV4_TOS_EN, pval); 1437 1438 len = sprintf(buf, "%s\n", pval); 1439 break; 1440 case ISCSI_NET_PARAM_IPV4_TOS: 1441 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos); 1442 break; 1443 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 1444 OP_STATE(ha->ip_config.ipv4_options, 1445 IPOPT_GRAT_ARP_EN, pval); 1446 1447 len = sprintf(buf, "%s\n", pval); 1448 break; 1449 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 1450 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN, 1451 pval); 1452 1453 len = sprintf(buf, "%s\n", pval); 1454 break; 1455 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 1456 pval = (ha->ip_config.ipv4_alt_cid_len) ? 1457 (char *)ha->ip_config.ipv4_alt_cid : ""; 1458 1459 len = sprintf(buf, "%s\n", pval); 1460 break; 1461 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 1462 OP_STATE(ha->ip_config.ipv4_options, 1463 IPOPT_REQ_VID_EN, pval); 1464 1465 len = sprintf(buf, "%s\n", pval); 1466 break; 1467 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 1468 OP_STATE(ha->ip_config.ipv4_options, 1469 IPOPT_USE_VID_EN, pval); 1470 1471 len = sprintf(buf, "%s\n", pval); 1472 break; 1473 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 1474 pval = (ha->ip_config.ipv4_vid_len) ? 1475 (char *)ha->ip_config.ipv4_vid : ""; 1476 1477 len = sprintf(buf, "%s\n", pval); 1478 break; 1479 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 1480 OP_STATE(ha->ip_config.ipv4_options, 1481 IPOPT_LEARN_IQN_EN, pval); 1482 1483 len = sprintf(buf, "%s\n", pval); 1484 break; 1485 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 1486 OP_STATE(~ha->ip_config.ipv4_options, 1487 IPOPT_FRAGMENTATION_DISABLE, pval); 1488 1489 len = sprintf(buf, "%s\n", pval); 1490 break; 1491 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 1492 OP_STATE(ha->ip_config.ipv4_options, 1493 IPOPT_IN_FORWARD_EN, pval); 1494 1495 len = sprintf(buf, "%s\n", pval); 1496 break; 1497 case ISCSI_NET_PARAM_REDIRECT_EN: 1498 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1499 OP_STATE(ha->ip_config.ipv4_options, 1500 IPOPT_ARP_REDIRECT_EN, pval); 1501 } else { 1502 OP_STATE(ha->ip_config.ipv6_options, 1503 IPV6_OPT_REDIRECT_EN, pval); 1504 } 1505 len = sprintf(buf, "%s\n", pval); 1506 break; 1507 case ISCSI_NET_PARAM_IPV4_TTL: 1508 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl); 1509 break; 1510 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 1511 OP_STATE(ha->ip_config.ipv6_options, 1512 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval); 1513 1514 len = sprintf(buf, "%s\n", pval); 1515 break; 1516 case ISCSI_NET_PARAM_IPV6_MLD_EN: 1517 OP_STATE(ha->ip_config.ipv6_addl_options, 1518 IPV6_ADDOPT_MLD_EN, pval); 1519 1520 len = sprintf(buf, "%s\n", pval); 1521 break; 1522 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 1523 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl); 1524 break; 1525 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 1526 len = sprintf(buf, "%d\n", 1527 ha->ip_config.ipv6_traffic_class); 1528 break; 1529 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 1530 len = sprintf(buf, "%d\n", 1531 ha->ip_config.ipv6_hop_limit); 1532 break; 1533 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 1534 len = sprintf(buf, "%d\n", 1535 ha->ip_config.ipv6_nd_reach_time); 1536 break; 1537 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 1538 len = sprintf(buf, "%d\n", 1539 ha->ip_config.ipv6_nd_rexmit_timer); 1540 break; 1541 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 1542 len = sprintf(buf, "%d\n", 1543 ha->ip_config.ipv6_nd_stale_timeout); 1544 break; 1545 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 1546 len = sprintf(buf, "%d\n", 1547 ha->ip_config.ipv6_dup_addr_detect_count); 1548 break; 1549 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 1550 len = sprintf(buf, "%d\n", 1551 ha->ip_config.ipv6_gw_advrt_mtu); 1552 break; 1553 default: 1554 len = -ENOSYS; 1555 } 1556 } else if (param_type == ISCSI_IFACE_PARAM) { 1557 switch (param) { 1558 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 1559 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout); 1560 break; 1561 case ISCSI_IFACE_PARAM_HDRDGST_EN: 1562 OP_STATE(ha->ip_config.iscsi_options, 1563 ISCSIOPTS_HEADER_DIGEST_EN, pval); 1564 1565 len = sprintf(buf, "%s\n", pval); 1566 break; 1567 case ISCSI_IFACE_PARAM_DATADGST_EN: 1568 OP_STATE(ha->ip_config.iscsi_options, 1569 ISCSIOPTS_DATA_DIGEST_EN, pval); 1570 1571 len = sprintf(buf, "%s\n", pval); 1572 break; 1573 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 1574 OP_STATE(ha->ip_config.iscsi_options, 1575 ISCSIOPTS_IMMEDIATE_DATA_EN, pval); 1576 1577 len = sprintf(buf, "%s\n", pval); 1578 break; 1579 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 1580 OP_STATE(ha->ip_config.iscsi_options, 1581 ISCSIOPTS_INITIAL_R2T_EN, pval); 1582 1583 len = sprintf(buf, "%s\n", pval); 1584 break; 1585 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 1586 OP_STATE(ha->ip_config.iscsi_options, 1587 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval); 1588 1589 len = sprintf(buf, "%s\n", pval); 1590 break; 1591 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 1592 OP_STATE(ha->ip_config.iscsi_options, 1593 ISCSIOPTS_DATA_PDU_INORDER_EN, pval); 1594 1595 len = sprintf(buf, "%s\n", pval); 1596 break; 1597 case ISCSI_IFACE_PARAM_ERL: 1598 len = sprintf(buf, "%d\n", 1599 (ha->ip_config.iscsi_options & 1600 ISCSIOPTS_ERL)); 1601 break; 1602 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 1603 len = sprintf(buf, "%u\n", 1604 ha->ip_config.iscsi_max_pdu_size * 1605 BYTE_UNITS); 1606 break; 1607 case ISCSI_IFACE_PARAM_FIRST_BURST: 1608 len = sprintf(buf, "%u\n", 1609 ha->ip_config.iscsi_first_burst_len * 1610 BYTE_UNITS); 1611 break; 1612 case ISCSI_IFACE_PARAM_MAX_R2T: 1613 len = sprintf(buf, "%d\n", 1614 ha->ip_config.iscsi_max_outstnd_r2t); 1615 break; 1616 case ISCSI_IFACE_PARAM_MAX_BURST: 1617 len = sprintf(buf, "%u\n", 1618 ha->ip_config.iscsi_max_burst_len * 1619 BYTE_UNITS); 1620 break; 1621 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 1622 OP_STATE(ha->ip_config.iscsi_options, 1623 ISCSIOPTS_CHAP_AUTH_EN, pval); 1624 1625 len = sprintf(buf, "%s\n", pval); 1626 break; 1627 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 1628 OP_STATE(ha->ip_config.iscsi_options, 1629 ISCSIOPTS_BIDI_CHAP_EN, pval); 1630 1631 len = sprintf(buf, "%s\n", pval); 1632 break; 1633 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 1634 OP_STATE(ha->ip_config.iscsi_options, 1635 ISCSIOPTS_DISCOVERY_AUTH_EN, pval); 1636 1637 len = sprintf(buf, "%s\n", pval); 1638 break; 1639 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 1640 OP_STATE(ha->ip_config.iscsi_options, 1641 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval); 1642 1643 len = sprintf(buf, "%s\n", pval); 1644 break; 1645 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 1646 OP_STATE(ha->ip_config.iscsi_options, 1647 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval); 1648 1649 len = sprintf(buf, "%s\n", pval); 1650 break; 1651 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 1652 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name); 1653 break; 1654 default: 1655 len = -ENOSYS; 1656 } 1657 } 1658 1659 return len; 1660 } 1661 1662 static struct iscsi_endpoint * 1663 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 1664 int non_blocking) 1665 { 1666 int ret; 1667 struct iscsi_endpoint *ep; 1668 struct qla_endpoint *qla_ep; 1669 struct scsi_qla_host *ha; 1670 struct sockaddr_in *addr; 1671 struct sockaddr_in6 *addr6; 1672 1673 if (!shost) { 1674 ret = -ENXIO; 1675 pr_err("%s: shost is NULL\n", __func__); 1676 return ERR_PTR(ret); 1677 } 1678 1679 ha = iscsi_host_priv(shost); 1680 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 1681 if (!ep) { 1682 ret = -ENOMEM; 1683 return ERR_PTR(ret); 1684 } 1685 1686 qla_ep = ep->dd_data; 1687 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 1688 if (dst_addr->sa_family == AF_INET) { 1689 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 1690 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 1691 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 1692 (char *)&addr->sin_addr)); 1693 } else if (dst_addr->sa_family == AF_INET6) { 1694 memcpy(&qla_ep->dst_addr, dst_addr, 1695 sizeof(struct sockaddr_in6)); 1696 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 1697 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 1698 (char *)&addr6->sin6_addr)); 1699 } else { 1700 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n", 1701 __func__); 1702 } 1703 1704 qla_ep->host = shost; 1705 1706 return ep; 1707 } 1708 1709 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 1710 { 1711 struct qla_endpoint *qla_ep; 1712 struct scsi_qla_host *ha; 1713 int ret = 0; 1714 1715 qla_ep = ep->dd_data; 1716 ha = to_qla_host(qla_ep->host); 1717 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no)); 1718 1719 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 1720 ret = 1; 1721 1722 return ret; 1723 } 1724 1725 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 1726 { 1727 struct qla_endpoint *qla_ep; 1728 struct scsi_qla_host *ha; 1729 1730 qla_ep = ep->dd_data; 1731 ha = to_qla_host(qla_ep->host); 1732 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1733 ha->host_no)); 1734 iscsi_destroy_endpoint(ep); 1735 } 1736 1737 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 1738 enum iscsi_param param, 1739 char *buf) 1740 { 1741 struct qla_endpoint *qla_ep = ep->dd_data; 1742 struct sockaddr *dst_addr; 1743 struct scsi_qla_host *ha; 1744 1745 if (!qla_ep) 1746 return -ENOTCONN; 1747 1748 ha = to_qla_host(qla_ep->host); 1749 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1750 ha->host_no)); 1751 1752 switch (param) { 1753 case ISCSI_PARAM_CONN_PORT: 1754 case ISCSI_PARAM_CONN_ADDRESS: 1755 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1756 if (!dst_addr) 1757 return -ENOTCONN; 1758 1759 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1760 &qla_ep->dst_addr, param, buf); 1761 default: 1762 return -ENOSYS; 1763 } 1764 } 1765 1766 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 1767 struct iscsi_stats *stats) 1768 { 1769 struct iscsi_session *sess; 1770 struct iscsi_cls_session *cls_sess; 1771 struct ddb_entry *ddb_entry; 1772 struct scsi_qla_host *ha; 1773 struct ql_iscsi_stats *ql_iscsi_stats; 1774 int stats_size; 1775 int ret; 1776 dma_addr_t iscsi_stats_dma; 1777 1778 cls_sess = iscsi_conn_to_session(cls_conn); 1779 sess = cls_sess->dd_data; 1780 ddb_entry = sess->dd_data; 1781 ha = ddb_entry->ha; 1782 1783 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1784 ha->host_no)); 1785 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1786 /* Allocate memory */ 1787 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1788 &iscsi_stats_dma, GFP_KERNEL); 1789 if (!ql_iscsi_stats) { 1790 ql4_printk(KERN_ERR, ha, 1791 "Unable to allocate memory for iscsi stats\n"); 1792 goto exit_get_stats; 1793 } 1794 1795 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 1796 iscsi_stats_dma); 1797 if (ret != QLA_SUCCESS) { 1798 ql4_printk(KERN_ERR, ha, 1799 "Unable to retrieve iscsi stats\n"); 1800 goto free_stats; 1801 } 1802 1803 /* octets */ 1804 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 1805 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 1806 /* xmit pdus */ 1807 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 1808 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 1809 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 1810 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 1811 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 1812 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 1813 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 1814 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 1815 /* recv pdus */ 1816 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 1817 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 1818 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 1819 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 1820 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 1821 stats->logoutrsp_pdus = 1822 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 1823 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 1824 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 1825 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 1826 1827 free_stats: 1828 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 1829 iscsi_stats_dma); 1830 exit_get_stats: 1831 return; 1832 } 1833 1834 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 1835 { 1836 struct iscsi_cls_session *session; 1837 struct iscsi_session *sess; 1838 unsigned long flags; 1839 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 1840 1841 session = starget_to_session(scsi_target(sc->device)); 1842 sess = session->dd_data; 1843 1844 spin_lock_irqsave(&session->lock, flags); 1845 if (session->state == ISCSI_SESSION_FAILED) 1846 ret = BLK_EH_RESET_TIMER; 1847 spin_unlock_irqrestore(&session->lock, flags); 1848 1849 return ret; 1850 } 1851 1852 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 1853 { 1854 struct scsi_qla_host *ha = to_qla_host(shost); 1855 struct iscsi_cls_host *ihost = shost->shost_data; 1856 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 1857 1858 qla4xxx_get_firmware_state(ha); 1859 1860 switch (ha->addl_fw_state & 0x0F00) { 1861 case FW_ADDSTATE_LINK_SPEED_10MBPS: 1862 speed = ISCSI_PORT_SPEED_10MBPS; 1863 break; 1864 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1865 speed = ISCSI_PORT_SPEED_100MBPS; 1866 break; 1867 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1868 speed = ISCSI_PORT_SPEED_1GBPS; 1869 break; 1870 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1871 speed = ISCSI_PORT_SPEED_10GBPS; 1872 break; 1873 } 1874 ihost->port_speed = speed; 1875 } 1876 1877 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1878 { 1879 struct scsi_qla_host *ha = to_qla_host(shost); 1880 struct iscsi_cls_host *ihost = shost->shost_data; 1881 uint32_t state = ISCSI_PORT_STATE_DOWN; 1882 1883 if (test_bit(AF_LINK_UP, &ha->flags)) 1884 state = ISCSI_PORT_STATE_UP; 1885 1886 ihost->port_state = state; 1887 } 1888 1889 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1890 enum iscsi_host_param param, char *buf) 1891 { 1892 struct scsi_qla_host *ha = to_qla_host(shost); 1893 int len; 1894 1895 switch (param) { 1896 case ISCSI_HOST_PARAM_HWADDRESS: 1897 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1898 break; 1899 case ISCSI_HOST_PARAM_IPADDRESS: 1900 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1901 break; 1902 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1903 len = sprintf(buf, "%s\n", ha->name_string); 1904 break; 1905 case ISCSI_HOST_PARAM_PORT_STATE: 1906 qla4xxx_set_port_state(shost); 1907 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1908 break; 1909 case ISCSI_HOST_PARAM_PORT_SPEED: 1910 qla4xxx_set_port_speed(shost); 1911 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1912 break; 1913 default: 1914 return -ENOSYS; 1915 } 1916 1917 return len; 1918 } 1919 1920 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1921 { 1922 if (ha->iface_ipv4) 1923 return; 1924 1925 /* IPv4 */ 1926 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1927 &qla4xxx_iscsi_transport, 1928 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1929 if (!ha->iface_ipv4) 1930 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1931 "iface0.\n"); 1932 } 1933 1934 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1935 { 1936 if (!ha->iface_ipv6_0) 1937 /* IPv6 iface-0 */ 1938 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1939 &qla4xxx_iscsi_transport, 1940 ISCSI_IFACE_TYPE_IPV6, 0, 1941 0); 1942 if (!ha->iface_ipv6_0) 1943 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1944 "iface0.\n"); 1945 1946 if (!ha->iface_ipv6_1) 1947 /* IPv6 iface-1 */ 1948 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1949 &qla4xxx_iscsi_transport, 1950 ISCSI_IFACE_TYPE_IPV6, 1, 1951 0); 1952 if (!ha->iface_ipv6_1) 1953 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1954 "iface1.\n"); 1955 } 1956 1957 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 1958 { 1959 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 1960 qla4xxx_create_ipv4_iface(ha); 1961 1962 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 1963 qla4xxx_create_ipv6_iface(ha); 1964 } 1965 1966 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 1967 { 1968 if (ha->iface_ipv4) { 1969 iscsi_destroy_iface(ha->iface_ipv4); 1970 ha->iface_ipv4 = NULL; 1971 } 1972 } 1973 1974 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 1975 { 1976 if (ha->iface_ipv6_0) { 1977 iscsi_destroy_iface(ha->iface_ipv6_0); 1978 ha->iface_ipv6_0 = NULL; 1979 } 1980 if (ha->iface_ipv6_1) { 1981 iscsi_destroy_iface(ha->iface_ipv6_1); 1982 ha->iface_ipv6_1 = NULL; 1983 } 1984 } 1985 1986 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 1987 { 1988 qla4xxx_destroy_ipv4_iface(ha); 1989 qla4xxx_destroy_ipv6_iface(ha); 1990 } 1991 1992 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 1993 struct iscsi_iface_param_info *iface_param, 1994 struct addr_ctrl_blk *init_fw_cb) 1995 { 1996 /* 1997 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 1998 * iface_num 1 is valid only for IPv6 Addr. 1999 */ 2000 switch (iface_param->param) { 2001 case ISCSI_NET_PARAM_IPV6_ADDR: 2002 if (iface_param->iface_num & 0x1) 2003 /* IPv6 Addr 1 */ 2004 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 2005 sizeof(init_fw_cb->ipv6_addr1)); 2006 else 2007 /* IPv6 Addr 0 */ 2008 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 2009 sizeof(init_fw_cb->ipv6_addr0)); 2010 break; 2011 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 2012 if (iface_param->iface_num & 0x1) 2013 break; 2014 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 2015 sizeof(init_fw_cb->ipv6_if_id)); 2016 break; 2017 case ISCSI_NET_PARAM_IPV6_ROUTER: 2018 if (iface_param->iface_num & 0x1) 2019 break; 2020 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 2021 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2022 break; 2023 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 2024 /* Autocfg applies to even interface */ 2025 if (iface_param->iface_num & 0x1) 2026 break; 2027 2028 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 2029 init_fw_cb->ipv6_addtl_opts &= 2030 cpu_to_le16( 2031 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2032 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 2033 init_fw_cb->ipv6_addtl_opts |= 2034 cpu_to_le16( 2035 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2036 else 2037 ql4_printk(KERN_ERR, ha, 2038 "Invalid autocfg setting for IPv6 addr\n"); 2039 break; 2040 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2041 /* Autocfg applies to even interface */ 2042 if (iface_param->iface_num & 0x1) 2043 break; 2044 2045 if (iface_param->value[0] == 2046 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 2047 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 2048 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2049 else if (iface_param->value[0] == 2050 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 2051 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 2052 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2053 else 2054 ql4_printk(KERN_ERR, ha, 2055 "Invalid autocfg setting for IPv6 linklocal addr\n"); 2056 break; 2057 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 2058 /* Autocfg applies to even interface */ 2059 if (iface_param->iface_num & 0x1) 2060 break; 2061 2062 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 2063 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 2064 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2065 break; 2066 case ISCSI_NET_PARAM_IFACE_ENABLE: 2067 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2068 init_fw_cb->ipv6_opts |= 2069 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 2070 qla4xxx_create_ipv6_iface(ha); 2071 } else { 2072 init_fw_cb->ipv6_opts &= 2073 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 2074 0xFFFF); 2075 qla4xxx_destroy_ipv6_iface(ha); 2076 } 2077 break; 2078 case ISCSI_NET_PARAM_VLAN_TAG: 2079 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 2080 break; 2081 init_fw_cb->ipv6_vlan_tag = 2082 cpu_to_be16(*(uint16_t *)iface_param->value); 2083 break; 2084 case ISCSI_NET_PARAM_VLAN_ENABLED: 2085 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2086 init_fw_cb->ipv6_opts |= 2087 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 2088 else 2089 init_fw_cb->ipv6_opts &= 2090 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 2091 break; 2092 case ISCSI_NET_PARAM_MTU: 2093 init_fw_cb->eth_mtu_size = 2094 cpu_to_le16(*(uint16_t *)iface_param->value); 2095 break; 2096 case ISCSI_NET_PARAM_PORT: 2097 /* Autocfg applies to even interface */ 2098 if (iface_param->iface_num & 0x1) 2099 break; 2100 2101 init_fw_cb->ipv6_port = 2102 cpu_to_le16(*(uint16_t *)iface_param->value); 2103 break; 2104 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2105 if (iface_param->iface_num & 0x1) 2106 break; 2107 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2108 init_fw_cb->ipv6_tcp_opts |= 2109 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2110 else 2111 init_fw_cb->ipv6_tcp_opts &= 2112 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE & 2113 0xFFFF); 2114 break; 2115 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 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_NAGLE_ALGO_DISABLE); 2121 else 2122 init_fw_cb->ipv6_tcp_opts &= 2123 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2124 break; 2125 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2126 if (iface_param->iface_num & 0x1) 2127 break; 2128 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2129 init_fw_cb->ipv6_tcp_opts |= 2130 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2131 else 2132 init_fw_cb->ipv6_tcp_opts &= 2133 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2134 break; 2135 case ISCSI_NET_PARAM_TCP_WSF: 2136 if (iface_param->iface_num & 0x1) 2137 break; 2138 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; 2139 break; 2140 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2141 if (iface_param->iface_num & 0x1) 2142 break; 2143 init_fw_cb->ipv6_tcp_opts &= 2144 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); 2145 init_fw_cb->ipv6_tcp_opts |= 2146 cpu_to_le16((iface_param->value[0] << 1) & 2147 IPV6_TCPOPT_TIMER_SCALE); 2148 break; 2149 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2150 if (iface_param->iface_num & 0x1) 2151 break; 2152 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2153 init_fw_cb->ipv6_tcp_opts |= 2154 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); 2155 else 2156 init_fw_cb->ipv6_tcp_opts &= 2157 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); 2158 break; 2159 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 2160 if (iface_param->iface_num & 0x1) 2161 break; 2162 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2163 init_fw_cb->ipv6_opts |= 2164 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2165 else 2166 init_fw_cb->ipv6_opts &= 2167 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2168 break; 2169 case ISCSI_NET_PARAM_REDIRECT_EN: 2170 if (iface_param->iface_num & 0x1) 2171 break; 2172 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2173 init_fw_cb->ipv6_opts |= 2174 cpu_to_le16(IPV6_OPT_REDIRECT_EN); 2175 else 2176 init_fw_cb->ipv6_opts &= 2177 cpu_to_le16(~IPV6_OPT_REDIRECT_EN); 2178 break; 2179 case ISCSI_NET_PARAM_IPV6_MLD_EN: 2180 if (iface_param->iface_num & 0x1) 2181 break; 2182 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2183 init_fw_cb->ipv6_addtl_opts |= 2184 cpu_to_le16(IPV6_ADDOPT_MLD_EN); 2185 else 2186 init_fw_cb->ipv6_addtl_opts &= 2187 cpu_to_le16(~IPV6_ADDOPT_MLD_EN); 2188 break; 2189 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 2190 if (iface_param->iface_num & 0x1) 2191 break; 2192 init_fw_cb->ipv6_flow_lbl = 2193 cpu_to_le16(*(uint16_t *)iface_param->value); 2194 break; 2195 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 2196 if (iface_param->iface_num & 0x1) 2197 break; 2198 init_fw_cb->ipv6_traffic_class = iface_param->value[0]; 2199 break; 2200 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 2201 if (iface_param->iface_num & 0x1) 2202 break; 2203 init_fw_cb->ipv6_hop_limit = iface_param->value[0]; 2204 break; 2205 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 2206 if (iface_param->iface_num & 0x1) 2207 break; 2208 init_fw_cb->ipv6_nd_reach_time = 2209 cpu_to_le32(*(uint32_t *)iface_param->value); 2210 break; 2211 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 2212 if (iface_param->iface_num & 0x1) 2213 break; 2214 init_fw_cb->ipv6_nd_rexmit_timer = 2215 cpu_to_le32(*(uint32_t *)iface_param->value); 2216 break; 2217 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 2218 if (iface_param->iface_num & 0x1) 2219 break; 2220 init_fw_cb->ipv6_nd_stale_timeout = 2221 cpu_to_le32(*(uint32_t *)iface_param->value); 2222 break; 2223 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 2224 if (iface_param->iface_num & 0x1) 2225 break; 2226 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; 2227 break; 2228 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 2229 if (iface_param->iface_num & 0x1) 2230 break; 2231 init_fw_cb->ipv6_gw_advrt_mtu = 2232 cpu_to_le32(*(uint32_t *)iface_param->value); 2233 break; 2234 default: 2235 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 2236 iface_param->param); 2237 break; 2238 } 2239 } 2240 2241 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 2242 struct iscsi_iface_param_info *iface_param, 2243 struct addr_ctrl_blk *init_fw_cb) 2244 { 2245 switch (iface_param->param) { 2246 case ISCSI_NET_PARAM_IPV4_ADDR: 2247 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 2248 sizeof(init_fw_cb->ipv4_addr)); 2249 break; 2250 case ISCSI_NET_PARAM_IPV4_SUBNET: 2251 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 2252 sizeof(init_fw_cb->ipv4_subnet)); 2253 break; 2254 case ISCSI_NET_PARAM_IPV4_GW: 2255 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 2256 sizeof(init_fw_cb->ipv4_gw_addr)); 2257 break; 2258 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 2259 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 2260 init_fw_cb->ipv4_tcp_opts |= 2261 cpu_to_le16(TCPOPT_DHCP_ENABLE); 2262 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 2263 init_fw_cb->ipv4_tcp_opts &= 2264 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 2265 else 2266 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 2267 break; 2268 case ISCSI_NET_PARAM_IFACE_ENABLE: 2269 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2270 init_fw_cb->ipv4_ip_opts |= 2271 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 2272 qla4xxx_create_ipv4_iface(ha); 2273 } else { 2274 init_fw_cb->ipv4_ip_opts &= 2275 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 2276 0xFFFF); 2277 qla4xxx_destroy_ipv4_iface(ha); 2278 } 2279 break; 2280 case ISCSI_NET_PARAM_VLAN_TAG: 2281 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 2282 break; 2283 init_fw_cb->ipv4_vlan_tag = 2284 cpu_to_be16(*(uint16_t *)iface_param->value); 2285 break; 2286 case ISCSI_NET_PARAM_VLAN_ENABLED: 2287 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2288 init_fw_cb->ipv4_ip_opts |= 2289 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 2290 else 2291 init_fw_cb->ipv4_ip_opts &= 2292 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 2293 break; 2294 case ISCSI_NET_PARAM_MTU: 2295 init_fw_cb->eth_mtu_size = 2296 cpu_to_le16(*(uint16_t *)iface_param->value); 2297 break; 2298 case ISCSI_NET_PARAM_PORT: 2299 init_fw_cb->ipv4_port = 2300 cpu_to_le16(*(uint16_t *)iface_param->value); 2301 break; 2302 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2303 if (iface_param->iface_num & 0x1) 2304 break; 2305 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2306 init_fw_cb->ipv4_tcp_opts |= 2307 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); 2308 else 2309 init_fw_cb->ipv4_tcp_opts &= 2310 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE & 2311 0xFFFF); 2312 break; 2313 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 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_NAGLE_ALGO_DISABLE); 2319 else 2320 init_fw_cb->ipv4_tcp_opts &= 2321 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); 2322 break; 2323 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2324 if (iface_param->iface_num & 0x1) 2325 break; 2326 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2327 init_fw_cb->ipv4_tcp_opts |= 2328 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); 2329 else 2330 init_fw_cb->ipv4_tcp_opts &= 2331 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); 2332 break; 2333 case ISCSI_NET_PARAM_TCP_WSF: 2334 if (iface_param->iface_num & 0x1) 2335 break; 2336 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; 2337 break; 2338 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2339 if (iface_param->iface_num & 0x1) 2340 break; 2341 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); 2342 init_fw_cb->ipv4_tcp_opts |= 2343 cpu_to_le16((iface_param->value[0] << 1) & 2344 TCPOPT_TIMER_SCALE); 2345 break; 2346 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2347 if (iface_param->iface_num & 0x1) 2348 break; 2349 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2350 init_fw_cb->ipv4_tcp_opts |= 2351 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); 2352 else 2353 init_fw_cb->ipv4_tcp_opts &= 2354 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); 2355 break; 2356 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 2357 if (iface_param->iface_num & 0x1) 2358 break; 2359 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2360 init_fw_cb->ipv4_tcp_opts |= 2361 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); 2362 else 2363 init_fw_cb->ipv4_tcp_opts &= 2364 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); 2365 break; 2366 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 2367 if (iface_param->iface_num & 0x1) 2368 break; 2369 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2370 init_fw_cb->ipv4_tcp_opts |= 2371 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); 2372 else 2373 init_fw_cb->ipv4_tcp_opts &= 2374 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); 2375 break; 2376 case ISCSI_NET_PARAM_IPV4_TOS_EN: 2377 if (iface_param->iface_num & 0x1) 2378 break; 2379 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2380 init_fw_cb->ipv4_ip_opts |= 2381 cpu_to_le16(IPOPT_IPV4_TOS_EN); 2382 else 2383 init_fw_cb->ipv4_ip_opts &= 2384 cpu_to_le16(~IPOPT_IPV4_TOS_EN); 2385 break; 2386 case ISCSI_NET_PARAM_IPV4_TOS: 2387 if (iface_param->iface_num & 0x1) 2388 break; 2389 init_fw_cb->ipv4_tos = iface_param->value[0]; 2390 break; 2391 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 2392 if (iface_param->iface_num & 0x1) 2393 break; 2394 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2395 init_fw_cb->ipv4_ip_opts |= 2396 cpu_to_le16(IPOPT_GRAT_ARP_EN); 2397 else 2398 init_fw_cb->ipv4_ip_opts &= 2399 cpu_to_le16(~IPOPT_GRAT_ARP_EN); 2400 break; 2401 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 2402 if (iface_param->iface_num & 0x1) 2403 break; 2404 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2405 init_fw_cb->ipv4_ip_opts |= 2406 cpu_to_le16(IPOPT_ALT_CID_EN); 2407 else 2408 init_fw_cb->ipv4_ip_opts &= 2409 cpu_to_le16(~IPOPT_ALT_CID_EN); 2410 break; 2411 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 2412 if (iface_param->iface_num & 0x1) 2413 break; 2414 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, 2415 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); 2416 init_fw_cb->ipv4_dhcp_alt_cid_len = 2417 strlen(init_fw_cb->ipv4_dhcp_alt_cid); 2418 break; 2419 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 2420 if (iface_param->iface_num & 0x1) 2421 break; 2422 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2423 init_fw_cb->ipv4_ip_opts |= 2424 cpu_to_le16(IPOPT_REQ_VID_EN); 2425 else 2426 init_fw_cb->ipv4_ip_opts &= 2427 cpu_to_le16(~IPOPT_REQ_VID_EN); 2428 break; 2429 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 2430 if (iface_param->iface_num & 0x1) 2431 break; 2432 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2433 init_fw_cb->ipv4_ip_opts |= 2434 cpu_to_le16(IPOPT_USE_VID_EN); 2435 else 2436 init_fw_cb->ipv4_ip_opts &= 2437 cpu_to_le16(~IPOPT_USE_VID_EN); 2438 break; 2439 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 2440 if (iface_param->iface_num & 0x1) 2441 break; 2442 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, 2443 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); 2444 init_fw_cb->ipv4_dhcp_vid_len = 2445 strlen(init_fw_cb->ipv4_dhcp_vid); 2446 break; 2447 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 2448 if (iface_param->iface_num & 0x1) 2449 break; 2450 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2451 init_fw_cb->ipv4_ip_opts |= 2452 cpu_to_le16(IPOPT_LEARN_IQN_EN); 2453 else 2454 init_fw_cb->ipv4_ip_opts &= 2455 cpu_to_le16(~IPOPT_LEARN_IQN_EN); 2456 break; 2457 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 2458 if (iface_param->iface_num & 0x1) 2459 break; 2460 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2461 init_fw_cb->ipv4_ip_opts |= 2462 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); 2463 else 2464 init_fw_cb->ipv4_ip_opts &= 2465 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); 2466 break; 2467 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 2468 if (iface_param->iface_num & 0x1) 2469 break; 2470 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2471 init_fw_cb->ipv4_ip_opts |= 2472 cpu_to_le16(IPOPT_IN_FORWARD_EN); 2473 else 2474 init_fw_cb->ipv4_ip_opts &= 2475 cpu_to_le16(~IPOPT_IN_FORWARD_EN); 2476 break; 2477 case ISCSI_NET_PARAM_REDIRECT_EN: 2478 if (iface_param->iface_num & 0x1) 2479 break; 2480 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2481 init_fw_cb->ipv4_ip_opts |= 2482 cpu_to_le16(IPOPT_ARP_REDIRECT_EN); 2483 else 2484 init_fw_cb->ipv4_ip_opts &= 2485 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); 2486 break; 2487 case ISCSI_NET_PARAM_IPV4_TTL: 2488 if (iface_param->iface_num & 0x1) 2489 break; 2490 init_fw_cb->ipv4_ttl = iface_param->value[0]; 2491 break; 2492 default: 2493 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 2494 iface_param->param); 2495 break; 2496 } 2497 } 2498 2499 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, 2500 struct iscsi_iface_param_info *iface_param, 2501 struct addr_ctrl_blk *init_fw_cb) 2502 { 2503 switch (iface_param->param) { 2504 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 2505 if (iface_param->iface_num & 0x1) 2506 break; 2507 init_fw_cb->def_timeout = 2508 cpu_to_le16(*(uint16_t *)iface_param->value); 2509 break; 2510 case ISCSI_IFACE_PARAM_HDRDGST_EN: 2511 if (iface_param->iface_num & 0x1) 2512 break; 2513 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2514 init_fw_cb->iscsi_opts |= 2515 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); 2516 else 2517 init_fw_cb->iscsi_opts &= 2518 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); 2519 break; 2520 case ISCSI_IFACE_PARAM_DATADGST_EN: 2521 if (iface_param->iface_num & 0x1) 2522 break; 2523 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2524 init_fw_cb->iscsi_opts |= 2525 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); 2526 else 2527 init_fw_cb->iscsi_opts &= 2528 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); 2529 break; 2530 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 2531 if (iface_param->iface_num & 0x1) 2532 break; 2533 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2534 init_fw_cb->iscsi_opts |= 2535 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); 2536 else 2537 init_fw_cb->iscsi_opts &= 2538 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); 2539 break; 2540 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 2541 if (iface_param->iface_num & 0x1) 2542 break; 2543 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2544 init_fw_cb->iscsi_opts |= 2545 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); 2546 else 2547 init_fw_cb->iscsi_opts &= 2548 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); 2549 break; 2550 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 2551 if (iface_param->iface_num & 0x1) 2552 break; 2553 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2554 init_fw_cb->iscsi_opts |= 2555 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); 2556 else 2557 init_fw_cb->iscsi_opts &= 2558 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); 2559 break; 2560 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 2561 if (iface_param->iface_num & 0x1) 2562 break; 2563 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2564 init_fw_cb->iscsi_opts |= 2565 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); 2566 else 2567 init_fw_cb->iscsi_opts &= 2568 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); 2569 break; 2570 case ISCSI_IFACE_PARAM_ERL: 2571 if (iface_param->iface_num & 0x1) 2572 break; 2573 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); 2574 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & 2575 ISCSIOPTS_ERL); 2576 break; 2577 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 2578 if (iface_param->iface_num & 0x1) 2579 break; 2580 init_fw_cb->iscsi_max_pdu_size = 2581 cpu_to_le32(*(uint32_t *)iface_param->value) / 2582 BYTE_UNITS; 2583 break; 2584 case ISCSI_IFACE_PARAM_FIRST_BURST: 2585 if (iface_param->iface_num & 0x1) 2586 break; 2587 init_fw_cb->iscsi_fburst_len = 2588 cpu_to_le32(*(uint32_t *)iface_param->value) / 2589 BYTE_UNITS; 2590 break; 2591 case ISCSI_IFACE_PARAM_MAX_R2T: 2592 if (iface_param->iface_num & 0x1) 2593 break; 2594 init_fw_cb->iscsi_max_outstnd_r2t = 2595 cpu_to_le16(*(uint16_t *)iface_param->value); 2596 break; 2597 case ISCSI_IFACE_PARAM_MAX_BURST: 2598 if (iface_param->iface_num & 0x1) 2599 break; 2600 init_fw_cb->iscsi_max_burst_len = 2601 cpu_to_le32(*(uint32_t *)iface_param->value) / 2602 BYTE_UNITS; 2603 break; 2604 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 2605 if (iface_param->iface_num & 0x1) 2606 break; 2607 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2608 init_fw_cb->iscsi_opts |= 2609 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); 2610 else 2611 init_fw_cb->iscsi_opts &= 2612 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); 2613 break; 2614 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 2615 if (iface_param->iface_num & 0x1) 2616 break; 2617 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2618 init_fw_cb->iscsi_opts |= 2619 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); 2620 else 2621 init_fw_cb->iscsi_opts &= 2622 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); 2623 break; 2624 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 2625 if (iface_param->iface_num & 0x1) 2626 break; 2627 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2628 init_fw_cb->iscsi_opts |= 2629 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); 2630 else 2631 init_fw_cb->iscsi_opts &= 2632 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); 2633 break; 2634 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 2635 if (iface_param->iface_num & 0x1) 2636 break; 2637 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2638 init_fw_cb->iscsi_opts |= 2639 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2640 else 2641 init_fw_cb->iscsi_opts &= 2642 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2643 break; 2644 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 2645 if (iface_param->iface_num & 0x1) 2646 break; 2647 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2648 init_fw_cb->iscsi_opts |= 2649 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2650 else 2651 init_fw_cb->iscsi_opts &= 2652 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2653 break; 2654 default: 2655 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", 2656 iface_param->param); 2657 break; 2658 } 2659 } 2660 2661 static void 2662 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 2663 { 2664 struct addr_ctrl_blk_def *acb; 2665 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 2666 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 2667 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 2668 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 2669 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 2670 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 2671 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 2672 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 2673 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 2674 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 2675 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 2676 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 2677 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 2678 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 2679 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 2680 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 2681 } 2682 2683 static int 2684 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 2685 { 2686 struct scsi_qla_host *ha = to_qla_host(shost); 2687 int rval = 0; 2688 struct iscsi_iface_param_info *iface_param = NULL; 2689 struct addr_ctrl_blk *init_fw_cb = NULL; 2690 dma_addr_t init_fw_cb_dma; 2691 uint32_t mbox_cmd[MBOX_REG_COUNT]; 2692 uint32_t mbox_sts[MBOX_REG_COUNT]; 2693 uint32_t rem = len; 2694 struct nlattr *attr; 2695 2696 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 2697 sizeof(struct addr_ctrl_blk), 2698 &init_fw_cb_dma, GFP_KERNEL); 2699 if (!init_fw_cb) { 2700 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 2701 __func__); 2702 return -ENOMEM; 2703 } 2704 2705 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2706 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 2707 memset(&mbox_sts, 0, sizeof(mbox_sts)); 2708 2709 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 2710 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 2711 rval = -EIO; 2712 goto exit_init_fw_cb; 2713 } 2714 2715 nla_for_each_attr(attr, data, len, rem) { 2716 iface_param = nla_data(attr); 2717 2718 if (iface_param->param_type == ISCSI_NET_PARAM) { 2719 switch (iface_param->iface_type) { 2720 case ISCSI_IFACE_TYPE_IPV4: 2721 switch (iface_param->iface_num) { 2722 case 0: 2723 qla4xxx_set_ipv4(ha, iface_param, 2724 init_fw_cb); 2725 break; 2726 default: 2727 /* Cannot have more than one IPv4 interface */ 2728 ql4_printk(KERN_ERR, ha, 2729 "Invalid IPv4 iface number = %d\n", 2730 iface_param->iface_num); 2731 break; 2732 } 2733 break; 2734 case ISCSI_IFACE_TYPE_IPV6: 2735 switch (iface_param->iface_num) { 2736 case 0: 2737 case 1: 2738 qla4xxx_set_ipv6(ha, iface_param, 2739 init_fw_cb); 2740 break; 2741 default: 2742 /* Cannot have more than two IPv6 interface */ 2743 ql4_printk(KERN_ERR, ha, 2744 "Invalid IPv6 iface number = %d\n", 2745 iface_param->iface_num); 2746 break; 2747 } 2748 break; 2749 default: 2750 ql4_printk(KERN_ERR, ha, 2751 "Invalid iface type\n"); 2752 break; 2753 } 2754 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { 2755 qla4xxx_set_iscsi_param(ha, iface_param, 2756 init_fw_cb); 2757 } else { 2758 continue; 2759 } 2760 } 2761 2762 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 2763 2764 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 2765 sizeof(struct addr_ctrl_blk), 2766 FLASH_OPT_RMW_COMMIT); 2767 if (rval != QLA_SUCCESS) { 2768 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 2769 __func__); 2770 rval = -EIO; 2771 goto exit_init_fw_cb; 2772 } 2773 2774 rval = qla4xxx_disable_acb(ha); 2775 if (rval != QLA_SUCCESS) { 2776 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 2777 __func__); 2778 rval = -EIO; 2779 goto exit_init_fw_cb; 2780 } 2781 2782 wait_for_completion_timeout(&ha->disable_acb_comp, 2783 DISABLE_ACB_TOV * HZ); 2784 2785 qla4xxx_initcb_to_acb(init_fw_cb); 2786 2787 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 2788 if (rval != QLA_SUCCESS) { 2789 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 2790 __func__); 2791 rval = -EIO; 2792 goto exit_init_fw_cb; 2793 } 2794 2795 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2796 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 2797 init_fw_cb_dma); 2798 2799 exit_init_fw_cb: 2800 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 2801 init_fw_cb, init_fw_cb_dma); 2802 2803 return rval; 2804 } 2805 2806 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 2807 enum iscsi_param param, char *buf) 2808 { 2809 struct iscsi_session *sess = cls_sess->dd_data; 2810 struct ddb_entry *ddb_entry = sess->dd_data; 2811 struct scsi_qla_host *ha = ddb_entry->ha; 2812 struct iscsi_cls_conn *cls_conn = ddb_entry->conn; 2813 struct ql4_chap_table chap_tbl; 2814 int rval, len; 2815 uint16_t idx; 2816 2817 memset(&chap_tbl, 0, sizeof(chap_tbl)); 2818 switch (param) { 2819 case ISCSI_PARAM_CHAP_IN_IDX: 2820 rval = qla4xxx_get_chap_index(ha, sess->username_in, 2821 sess->password_in, BIDI_CHAP, 2822 &idx); 2823 if (rval) 2824 len = sprintf(buf, "\n"); 2825 else 2826 len = sprintf(buf, "%hu\n", idx); 2827 break; 2828 case ISCSI_PARAM_CHAP_OUT_IDX: 2829 if (ddb_entry->ddb_type == FLASH_DDB) { 2830 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 2831 idx = ddb_entry->chap_tbl_idx; 2832 rval = QLA_SUCCESS; 2833 } else { 2834 rval = QLA_ERROR; 2835 } 2836 } else { 2837 rval = qla4xxx_get_chap_index(ha, sess->username, 2838 sess->password, 2839 LOCAL_CHAP, &idx); 2840 } 2841 if (rval) 2842 len = sprintf(buf, "\n"); 2843 else 2844 len = sprintf(buf, "%hu\n", idx); 2845 break; 2846 case ISCSI_PARAM_USERNAME: 2847 case ISCSI_PARAM_PASSWORD: 2848 /* First, populate session username and password for FLASH DDB, 2849 * if not already done. This happens when session login fails 2850 * for a FLASH DDB. 2851 */ 2852 if (ddb_entry->ddb_type == FLASH_DDB && 2853 ddb_entry->chap_tbl_idx != INVALID_ENTRY && 2854 !sess->username && !sess->password) { 2855 idx = ddb_entry->chap_tbl_idx; 2856 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 2857 chap_tbl.secret, 2858 idx); 2859 if (!rval) { 2860 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 2861 (char *)chap_tbl.name, 2862 strlen((char *)chap_tbl.name)); 2863 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 2864 (char *)chap_tbl.secret, 2865 chap_tbl.secret_len); 2866 } 2867 } 2868 /* allow fall-through */ 2869 default: 2870 return iscsi_session_get_param(cls_sess, param, buf); 2871 } 2872 2873 return len; 2874 } 2875 2876 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 2877 enum iscsi_param param, char *buf) 2878 { 2879 struct iscsi_conn *conn; 2880 struct qla_conn *qla_conn; 2881 struct sockaddr *dst_addr; 2882 2883 conn = cls_conn->dd_data; 2884 qla_conn = conn->dd_data; 2885 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 2886 2887 switch (param) { 2888 case ISCSI_PARAM_CONN_PORT: 2889 case ISCSI_PARAM_CONN_ADDRESS: 2890 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 2891 dst_addr, param, buf); 2892 default: 2893 return iscsi_conn_get_param(cls_conn, param, buf); 2894 } 2895 } 2896 2897 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 2898 { 2899 uint32_t mbx_sts = 0; 2900 uint16_t tmp_ddb_index; 2901 int ret; 2902 2903 get_ddb_index: 2904 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 2905 2906 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 2907 DEBUG2(ql4_printk(KERN_INFO, ha, 2908 "Free DDB index not available\n")); 2909 ret = QLA_ERROR; 2910 goto exit_get_ddb_index; 2911 } 2912 2913 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 2914 goto get_ddb_index; 2915 2916 DEBUG2(ql4_printk(KERN_INFO, ha, 2917 "Found a free DDB index at %d\n", tmp_ddb_index)); 2918 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 2919 if (ret == QLA_ERROR) { 2920 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 2921 ql4_printk(KERN_INFO, ha, 2922 "DDB index = %d not available trying next\n", 2923 tmp_ddb_index); 2924 goto get_ddb_index; 2925 } 2926 DEBUG2(ql4_printk(KERN_INFO, ha, 2927 "Free FW DDB not available\n")); 2928 } 2929 2930 *ddb_index = tmp_ddb_index; 2931 2932 exit_get_ddb_index: 2933 return ret; 2934 } 2935 2936 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 2937 struct ddb_entry *ddb_entry, 2938 char *existing_ipaddr, 2939 char *user_ipaddr) 2940 { 2941 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 2942 char formatted_ipaddr[DDB_IPADDR_LEN]; 2943 int status = QLA_SUCCESS, ret = 0; 2944 2945 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 2946 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2947 '\0', NULL); 2948 if (ret == 0) { 2949 status = QLA_ERROR; 2950 goto out_match; 2951 } 2952 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 2953 } else { 2954 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2955 '\0', NULL); 2956 if (ret == 0) { 2957 status = QLA_ERROR; 2958 goto out_match; 2959 } 2960 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 2961 } 2962 2963 if (strcmp(existing_ipaddr, formatted_ipaddr)) 2964 status = QLA_ERROR; 2965 2966 out_match: 2967 return status; 2968 } 2969 2970 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 2971 struct iscsi_cls_conn *cls_conn) 2972 { 2973 int idx = 0, max_ddbs, rval; 2974 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 2975 struct iscsi_session *sess, *existing_sess; 2976 struct iscsi_conn *conn, *existing_conn; 2977 struct ddb_entry *ddb_entry; 2978 2979 sess = cls_sess->dd_data; 2980 conn = cls_conn->dd_data; 2981 2982 if (sess->targetname == NULL || 2983 conn->persistent_address == NULL || 2984 conn->persistent_port == 0) 2985 return QLA_ERROR; 2986 2987 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 2988 MAX_DEV_DB_ENTRIES; 2989 2990 for (idx = 0; idx < max_ddbs; idx++) { 2991 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 2992 if (ddb_entry == NULL) 2993 continue; 2994 2995 if (ddb_entry->ddb_type != FLASH_DDB) 2996 continue; 2997 2998 existing_sess = ddb_entry->sess->dd_data; 2999 existing_conn = ddb_entry->conn->dd_data; 3000 3001 if (existing_sess->targetname == NULL || 3002 existing_conn->persistent_address == NULL || 3003 existing_conn->persistent_port == 0) 3004 continue; 3005 3006 DEBUG2(ql4_printk(KERN_INFO, ha, 3007 "IQN = %s User IQN = %s\n", 3008 existing_sess->targetname, 3009 sess->targetname)); 3010 3011 DEBUG2(ql4_printk(KERN_INFO, ha, 3012 "IP = %s User IP = %s\n", 3013 existing_conn->persistent_address, 3014 conn->persistent_address)); 3015 3016 DEBUG2(ql4_printk(KERN_INFO, ha, 3017 "Port = %d User Port = %d\n", 3018 existing_conn->persistent_port, 3019 conn->persistent_port)); 3020 3021 if (strcmp(existing_sess->targetname, sess->targetname)) 3022 continue; 3023 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 3024 existing_conn->persistent_address, 3025 conn->persistent_address); 3026 if (rval == QLA_ERROR) 3027 continue; 3028 if (existing_conn->persistent_port != conn->persistent_port) 3029 continue; 3030 break; 3031 } 3032 3033 if (idx == max_ddbs) 3034 return QLA_ERROR; 3035 3036 DEBUG2(ql4_printk(KERN_INFO, ha, 3037 "Match found in fwdb sessions\n")); 3038 return QLA_SUCCESS; 3039 } 3040 3041 static struct iscsi_cls_session * 3042 qla4xxx_session_create(struct iscsi_endpoint *ep, 3043 uint16_t cmds_max, uint16_t qdepth, 3044 uint32_t initial_cmdsn) 3045 { 3046 struct iscsi_cls_session *cls_sess; 3047 struct scsi_qla_host *ha; 3048 struct qla_endpoint *qla_ep; 3049 struct ddb_entry *ddb_entry; 3050 uint16_t ddb_index; 3051 struct iscsi_session *sess; 3052 struct sockaddr *dst_addr; 3053 int ret; 3054 3055 if (!ep) { 3056 printk(KERN_ERR "qla4xxx: missing ep.\n"); 3057 return NULL; 3058 } 3059 3060 qla_ep = ep->dd_data; 3061 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 3062 ha = to_qla_host(qla_ep->host); 3063 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3064 ha->host_no)); 3065 3066 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 3067 if (ret == QLA_ERROR) 3068 return NULL; 3069 3070 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 3071 cmds_max, sizeof(struct ddb_entry), 3072 sizeof(struct ql4_task_data), 3073 initial_cmdsn, ddb_index); 3074 if (!cls_sess) 3075 return NULL; 3076 3077 sess = cls_sess->dd_data; 3078 ddb_entry = sess->dd_data; 3079 ddb_entry->fw_ddb_index = ddb_index; 3080 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 3081 ddb_entry->ha = ha; 3082 ddb_entry->sess = cls_sess; 3083 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 3084 ddb_entry->ddb_change = qla4xxx_ddb_change; 3085 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); 3086 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 3087 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 3088 ha->tot_ddbs++; 3089 3090 return cls_sess; 3091 } 3092 3093 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 3094 { 3095 struct iscsi_session *sess; 3096 struct ddb_entry *ddb_entry; 3097 struct scsi_qla_host *ha; 3098 unsigned long flags, wtime; 3099 struct dev_db_entry *fw_ddb_entry = NULL; 3100 dma_addr_t fw_ddb_entry_dma; 3101 uint32_t ddb_state; 3102 int ret; 3103 3104 sess = cls_sess->dd_data; 3105 ddb_entry = sess->dd_data; 3106 ha = ddb_entry->ha; 3107 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3108 ha->host_no)); 3109 3110 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3111 &fw_ddb_entry_dma, GFP_KERNEL); 3112 if (!fw_ddb_entry) { 3113 ql4_printk(KERN_ERR, ha, 3114 "%s: Unable to allocate dma buffer\n", __func__); 3115 goto destroy_session; 3116 } 3117 3118 wtime = jiffies + (HZ * LOGOUT_TOV); 3119 do { 3120 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 3121 fw_ddb_entry, fw_ddb_entry_dma, 3122 NULL, NULL, &ddb_state, NULL, 3123 NULL, NULL); 3124 if (ret == QLA_ERROR) 3125 goto destroy_session; 3126 3127 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 3128 (ddb_state == DDB_DS_SESSION_FAILED)) 3129 goto destroy_session; 3130 3131 schedule_timeout_uninterruptible(HZ); 3132 } while ((time_after(wtime, jiffies))); 3133 3134 destroy_session: 3135 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 3136 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) 3137 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 3138 spin_lock_irqsave(&ha->hardware_lock, flags); 3139 qla4xxx_free_ddb(ha, ddb_entry); 3140 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3141 3142 iscsi_session_teardown(cls_sess); 3143 3144 if (fw_ddb_entry) 3145 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3146 fw_ddb_entry, fw_ddb_entry_dma); 3147 } 3148 3149 static struct iscsi_cls_conn * 3150 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 3151 { 3152 struct iscsi_cls_conn *cls_conn; 3153 struct iscsi_session *sess; 3154 struct ddb_entry *ddb_entry; 3155 struct scsi_qla_host *ha; 3156 3157 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 3158 conn_idx); 3159 if (!cls_conn) { 3160 pr_info("%s: Can not create connection for conn_idx = %u\n", 3161 __func__, conn_idx); 3162 return NULL; 3163 } 3164 3165 sess = cls_sess->dd_data; 3166 ddb_entry = sess->dd_data; 3167 ddb_entry->conn = cls_conn; 3168 3169 ha = ddb_entry->ha; 3170 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__, 3171 conn_idx)); 3172 return cls_conn; 3173 } 3174 3175 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 3176 struct iscsi_cls_conn *cls_conn, 3177 uint64_t transport_fd, int is_leading) 3178 { 3179 struct iscsi_conn *conn; 3180 struct qla_conn *qla_conn; 3181 struct iscsi_endpoint *ep; 3182 struct ddb_entry *ddb_entry; 3183 struct scsi_qla_host *ha; 3184 struct iscsi_session *sess; 3185 3186 sess = cls_session->dd_data; 3187 ddb_entry = sess->dd_data; 3188 ha = ddb_entry->ha; 3189 3190 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3191 cls_session->sid, cls_conn->cid)); 3192 3193 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 3194 return -EINVAL; 3195 ep = iscsi_lookup_endpoint(transport_fd); 3196 conn = cls_conn->dd_data; 3197 qla_conn = conn->dd_data; 3198 qla_conn->qla_ep = ep->dd_data; 3199 return 0; 3200 } 3201 3202 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3203 { 3204 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3205 struct iscsi_session *sess; 3206 struct ddb_entry *ddb_entry; 3207 struct scsi_qla_host *ha; 3208 struct dev_db_entry *fw_ddb_entry = NULL; 3209 dma_addr_t fw_ddb_entry_dma; 3210 uint32_t mbx_sts = 0; 3211 int ret = 0; 3212 int status = QLA_SUCCESS; 3213 3214 sess = cls_sess->dd_data; 3215 ddb_entry = sess->dd_data; 3216 ha = ddb_entry->ha; 3217 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3218 cls_sess->sid, cls_conn->cid)); 3219 3220 /* Check if we have matching FW DDB, if yes then do not 3221 * login to this target. This could cause target to logout previous 3222 * connection 3223 */ 3224 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3225 if (ret == QLA_SUCCESS) { 3226 ql4_printk(KERN_INFO, ha, 3227 "Session already exist in FW.\n"); 3228 ret = -EEXIST; 3229 goto exit_conn_start; 3230 } 3231 3232 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3233 &fw_ddb_entry_dma, GFP_KERNEL); 3234 if (!fw_ddb_entry) { 3235 ql4_printk(KERN_ERR, ha, 3236 "%s: Unable to allocate dma buffer\n", __func__); 3237 ret = -ENOMEM; 3238 goto exit_conn_start; 3239 } 3240 3241 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3242 if (ret) { 3243 /* If iscsid is stopped and started then no need to do 3244 * set param again since ddb state will be already 3245 * active and FW does not allow set ddb to an 3246 * active session. 3247 */ 3248 if (mbx_sts) 3249 if (ddb_entry->fw_ddb_device_state == 3250 DDB_DS_SESSION_ACTIVE) { 3251 ddb_entry->unblock_sess(ddb_entry->sess); 3252 goto exit_set_param; 3253 } 3254 3255 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3256 __func__, ddb_entry->fw_ddb_index); 3257 goto exit_conn_start; 3258 } 3259 3260 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3261 if (status == QLA_ERROR) { 3262 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3263 sess->targetname); 3264 ret = -EINVAL; 3265 goto exit_conn_start; 3266 } 3267 3268 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3269 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3270 3271 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3272 ddb_entry->fw_ddb_device_state)); 3273 3274 exit_set_param: 3275 ret = 0; 3276 3277 exit_conn_start: 3278 if (fw_ddb_entry) 3279 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3280 fw_ddb_entry, fw_ddb_entry_dma); 3281 return ret; 3282 } 3283 3284 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3285 { 3286 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3287 struct iscsi_session *sess; 3288 struct scsi_qla_host *ha; 3289 struct ddb_entry *ddb_entry; 3290 int options; 3291 3292 sess = cls_sess->dd_data; 3293 ddb_entry = sess->dd_data; 3294 ha = ddb_entry->ha; 3295 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, 3296 cls_conn->cid)); 3297 3298 options = LOGOUT_OPTION_CLOSE_SESSION; 3299 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3300 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3301 } 3302 3303 static void qla4xxx_task_work(struct work_struct *wdata) 3304 { 3305 struct ql4_task_data *task_data; 3306 struct scsi_qla_host *ha; 3307 struct passthru_status *sts; 3308 struct iscsi_task *task; 3309 struct iscsi_hdr *hdr; 3310 uint8_t *data; 3311 uint32_t data_len; 3312 struct iscsi_conn *conn; 3313 int hdr_len; 3314 itt_t itt; 3315 3316 task_data = container_of(wdata, struct ql4_task_data, task_work); 3317 ha = task_data->ha; 3318 task = task_data->task; 3319 sts = &task_data->sts; 3320 hdr_len = sizeof(struct iscsi_hdr); 3321 3322 DEBUG3(printk(KERN_INFO "Status returned\n")); 3323 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3324 DEBUG3(printk(KERN_INFO "Response buffer")); 3325 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3326 3327 conn = task->conn; 3328 3329 switch (sts->completionStatus) { 3330 case PASSTHRU_STATUS_COMPLETE: 3331 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3332 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3333 itt = sts->handle; 3334 hdr->itt = itt; 3335 data = task_data->resp_buffer + hdr_len; 3336 data_len = task_data->resp_len - hdr_len; 3337 iscsi_complete_pdu(conn, hdr, data, data_len); 3338 break; 3339 default: 3340 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3341 sts->completionStatus); 3342 break; 3343 } 3344 return; 3345 } 3346 3347 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3348 { 3349 struct ql4_task_data *task_data; 3350 struct iscsi_session *sess; 3351 struct ddb_entry *ddb_entry; 3352 struct scsi_qla_host *ha; 3353 int hdr_len; 3354 3355 sess = task->conn->session; 3356 ddb_entry = sess->dd_data; 3357 ha = ddb_entry->ha; 3358 task_data = task->dd_data; 3359 memset(task_data, 0, sizeof(struct ql4_task_data)); 3360 3361 if (task->sc) { 3362 ql4_printk(KERN_INFO, ha, 3363 "%s: SCSI Commands not implemented\n", __func__); 3364 return -EINVAL; 3365 } 3366 3367 hdr_len = sizeof(struct iscsi_hdr); 3368 task_data->ha = ha; 3369 task_data->task = task; 3370 3371 if (task->data_count) { 3372 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3373 task->data_count, 3374 PCI_DMA_TODEVICE); 3375 } 3376 3377 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3378 __func__, task->conn->max_recv_dlength, hdr_len)); 3379 3380 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3381 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3382 task_data->resp_len, 3383 &task_data->resp_dma, 3384 GFP_ATOMIC); 3385 if (!task_data->resp_buffer) 3386 goto exit_alloc_pdu; 3387 3388 task_data->req_len = task->data_count + hdr_len; 3389 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3390 task_data->req_len, 3391 &task_data->req_dma, 3392 GFP_ATOMIC); 3393 if (!task_data->req_buffer) 3394 goto exit_alloc_pdu; 3395 3396 task->hdr = task_data->req_buffer; 3397 3398 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3399 3400 return 0; 3401 3402 exit_alloc_pdu: 3403 if (task_data->resp_buffer) 3404 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3405 task_data->resp_buffer, task_data->resp_dma); 3406 3407 if (task_data->req_buffer) 3408 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3409 task_data->req_buffer, task_data->req_dma); 3410 return -ENOMEM; 3411 } 3412 3413 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3414 { 3415 struct ql4_task_data *task_data; 3416 struct iscsi_session *sess; 3417 struct ddb_entry *ddb_entry; 3418 struct scsi_qla_host *ha; 3419 int hdr_len; 3420 3421 hdr_len = sizeof(struct iscsi_hdr); 3422 sess = task->conn->session; 3423 ddb_entry = sess->dd_data; 3424 ha = ddb_entry->ha; 3425 task_data = task->dd_data; 3426 3427 if (task->data_count) { 3428 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3429 task->data_count, PCI_DMA_TODEVICE); 3430 } 3431 3432 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3433 __func__, task->conn->max_recv_dlength, hdr_len)); 3434 3435 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3436 task_data->resp_buffer, task_data->resp_dma); 3437 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3438 task_data->req_buffer, task_data->req_dma); 3439 return; 3440 } 3441 3442 static int qla4xxx_task_xmit(struct iscsi_task *task) 3443 { 3444 struct scsi_cmnd *sc = task->sc; 3445 struct iscsi_session *sess = task->conn->session; 3446 struct ddb_entry *ddb_entry = sess->dd_data; 3447 struct scsi_qla_host *ha = ddb_entry->ha; 3448 3449 if (!sc) 3450 return qla4xxx_send_passthru0(task); 3451 3452 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3453 __func__); 3454 return -ENOSYS; 3455 } 3456 3457 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3458 struct iscsi_bus_flash_conn *conn, 3459 struct dev_db_entry *fw_ddb_entry) 3460 { 3461 unsigned long options = 0; 3462 int rc = 0; 3463 3464 options = le16_to_cpu(fw_ddb_entry->options); 3465 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3466 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3467 rc = iscsi_switch_str_param(&sess->portal_type, 3468 PORTAL_TYPE_IPV6); 3469 if (rc) 3470 goto exit_copy; 3471 } else { 3472 rc = iscsi_switch_str_param(&sess->portal_type, 3473 PORTAL_TYPE_IPV4); 3474 if (rc) 3475 goto exit_copy; 3476 } 3477 3478 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3479 &options); 3480 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3481 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3482 3483 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3484 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3485 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3486 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3487 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3488 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3489 &options); 3490 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3491 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3492 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3493 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3494 &options); 3495 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3496 sess->discovery_auth_optional = 3497 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3498 if (test_bit(ISCSIOPT_ERL1, &options)) 3499 sess->erl |= BIT_1; 3500 if (test_bit(ISCSIOPT_ERL0, &options)) 3501 sess->erl |= BIT_0; 3502 3503 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3504 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3505 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3506 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3507 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3508 conn->tcp_timer_scale |= BIT_3; 3509 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3510 conn->tcp_timer_scale |= BIT_2; 3511 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3512 conn->tcp_timer_scale |= BIT_1; 3513 3514 conn->tcp_timer_scale >>= 1; 3515 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3516 3517 options = le16_to_cpu(fw_ddb_entry->ip_options); 3518 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3519 3520 conn->max_recv_dlength = BYTE_UNITS * 3521 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3522 conn->max_xmit_dlength = BYTE_UNITS * 3523 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3524 sess->first_burst = BYTE_UNITS * 3525 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3526 sess->max_burst = BYTE_UNITS * 3527 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3528 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3529 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3530 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3531 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3532 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3533 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3534 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3535 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3536 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3537 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3538 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3539 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3540 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3541 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3542 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3543 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3544 3545 sess->default_taskmgmt_timeout = 3546 le16_to_cpu(fw_ddb_entry->def_timeout); 3547 conn->port = le16_to_cpu(fw_ddb_entry->port); 3548 3549 options = le16_to_cpu(fw_ddb_entry->options); 3550 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3551 if (!conn->ipaddress) { 3552 rc = -ENOMEM; 3553 goto exit_copy; 3554 } 3555 3556 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3557 if (!conn->redirect_ipaddr) { 3558 rc = -ENOMEM; 3559 goto exit_copy; 3560 } 3561 3562 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3563 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3564 3565 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3566 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3567 3568 conn->link_local_ipv6_addr = kmemdup( 3569 fw_ddb_entry->link_local_ipv6_addr, 3570 IPv6_ADDR_LEN, GFP_KERNEL); 3571 if (!conn->link_local_ipv6_addr) { 3572 rc = -ENOMEM; 3573 goto exit_copy; 3574 } 3575 } else { 3576 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3577 } 3578 3579 if (fw_ddb_entry->iscsi_name[0]) { 3580 rc = iscsi_switch_str_param(&sess->targetname, 3581 (char *)fw_ddb_entry->iscsi_name); 3582 if (rc) 3583 goto exit_copy; 3584 } 3585 3586 if (fw_ddb_entry->iscsi_alias[0]) { 3587 rc = iscsi_switch_str_param(&sess->targetalias, 3588 (char *)fw_ddb_entry->iscsi_alias); 3589 if (rc) 3590 goto exit_copy; 3591 } 3592 3593 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3594 3595 exit_copy: 3596 return rc; 3597 } 3598 3599 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3600 struct iscsi_bus_flash_conn *conn, 3601 struct dev_db_entry *fw_ddb_entry) 3602 { 3603 uint16_t options; 3604 int rc = 0; 3605 3606 options = le16_to_cpu(fw_ddb_entry->options); 3607 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3608 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3609 options |= BIT_8; 3610 else 3611 options &= ~BIT_8; 3612 3613 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3614 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3615 SET_BITVAL(sess->entry_state, options, BIT_3); 3616 fw_ddb_entry->options = cpu_to_le16(options); 3617 3618 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3619 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3620 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3621 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3622 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3623 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3624 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3625 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3626 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3627 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3628 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3629 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3630 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3631 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3632 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3633 3634 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3635 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3636 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3637 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3638 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3639 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3640 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3641 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3642 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3643 3644 options = le16_to_cpu(fw_ddb_entry->ip_options); 3645 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3646 fw_ddb_entry->ip_options = cpu_to_le16(options); 3647 3648 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3649 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3650 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3651 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3652 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3653 fw_ddb_entry->iscsi_first_burst_len = 3654 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3655 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3656 BYTE_UNITS); 3657 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3658 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3659 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3660 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3661 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3662 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3663 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3664 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3665 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3666 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3667 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3668 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3669 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3670 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3671 fw_ddb_entry->port = cpu_to_le16(conn->port); 3672 fw_ddb_entry->def_timeout = 3673 cpu_to_le16(sess->default_taskmgmt_timeout); 3674 3675 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3676 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3677 else 3678 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3679 3680 if (conn->ipaddress) 3681 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3682 sizeof(fw_ddb_entry->ip_addr)); 3683 3684 if (conn->redirect_ipaddr) 3685 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3686 sizeof(fw_ddb_entry->tgt_addr)); 3687 3688 if (conn->link_local_ipv6_addr) 3689 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3690 conn->link_local_ipv6_addr, 3691 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3692 3693 if (sess->targetname) 3694 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3695 sizeof(fw_ddb_entry->iscsi_name)); 3696 3697 if (sess->targetalias) 3698 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3699 sizeof(fw_ddb_entry->iscsi_alias)); 3700 3701 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3702 3703 return rc; 3704 } 3705 3706 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3707 struct iscsi_session *sess, 3708 struct dev_db_entry *fw_ddb_entry) 3709 { 3710 unsigned long options = 0; 3711 uint16_t ddb_link; 3712 uint16_t disc_parent; 3713 char ip_addr[DDB_IPADDR_LEN]; 3714 3715 options = le16_to_cpu(fw_ddb_entry->options); 3716 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3717 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3718 &options); 3719 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3720 3721 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3722 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3723 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3724 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3725 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3726 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3727 &options); 3728 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3729 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3730 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3731 &options); 3732 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3733 sess->discovery_auth_optional = 3734 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3735 if (test_bit(ISCSIOPT_ERL1, &options)) 3736 sess->erl |= BIT_1; 3737 if (test_bit(ISCSIOPT_ERL0, &options)) 3738 sess->erl |= BIT_0; 3739 3740 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3741 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3742 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3743 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3744 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3745 conn->tcp_timer_scale |= BIT_3; 3746 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3747 conn->tcp_timer_scale |= BIT_2; 3748 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3749 conn->tcp_timer_scale |= BIT_1; 3750 3751 conn->tcp_timer_scale >>= 1; 3752 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3753 3754 options = le16_to_cpu(fw_ddb_entry->ip_options); 3755 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3756 3757 conn->max_recv_dlength = BYTE_UNITS * 3758 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3759 conn->max_xmit_dlength = BYTE_UNITS * 3760 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3761 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3762 sess->first_burst = BYTE_UNITS * 3763 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3764 sess->max_burst = BYTE_UNITS * 3765 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3766 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3767 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3768 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3769 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3770 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3771 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3772 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3773 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3774 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3775 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3776 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3777 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3778 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3779 3780 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3781 if (ddb_link == DDB_ISNS) 3782 disc_parent = ISCSI_DISC_PARENT_ISNS; 3783 else if (ddb_link == DDB_NO_LINK) 3784 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3785 else if (ddb_link < MAX_DDB_ENTRIES) 3786 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3787 else 3788 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3789 3790 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3791 iscsi_get_discovery_parent_name(disc_parent), 0); 3792 3793 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3794 (char *)fw_ddb_entry->iscsi_alias, 0); 3795 3796 options = le16_to_cpu(fw_ddb_entry->options); 3797 if (options & DDB_OPT_IPV6_DEVICE) { 3798 memset(ip_addr, 0, sizeof(ip_addr)); 3799 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3800 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3801 (char *)ip_addr, 0); 3802 } 3803 } 3804 3805 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3806 struct dev_db_entry *fw_ddb_entry, 3807 struct iscsi_cls_session *cls_sess, 3808 struct iscsi_cls_conn *cls_conn) 3809 { 3810 int buflen = 0; 3811 struct iscsi_session *sess; 3812 struct ddb_entry *ddb_entry; 3813 struct ql4_chap_table chap_tbl; 3814 struct iscsi_conn *conn; 3815 char ip_addr[DDB_IPADDR_LEN]; 3816 uint16_t options = 0; 3817 3818 sess = cls_sess->dd_data; 3819 ddb_entry = sess->dd_data; 3820 conn = cls_conn->dd_data; 3821 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3822 3823 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3824 3825 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3826 3827 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3828 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3829 3830 memset(ip_addr, 0, sizeof(ip_addr)); 3831 options = le16_to_cpu(fw_ddb_entry->options); 3832 if (options & DDB_OPT_IPV6_DEVICE) { 3833 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3834 3835 memset(ip_addr, 0, sizeof(ip_addr)); 3836 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3837 } else { 3838 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3839 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3840 } 3841 3842 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3843 (char *)ip_addr, buflen); 3844 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3845 (char *)fw_ddb_entry->iscsi_name, buflen); 3846 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3847 (char *)ha->name_string, buflen); 3848 3849 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3850 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3851 chap_tbl.secret, 3852 ddb_entry->chap_tbl_idx)) { 3853 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3854 (char *)chap_tbl.name, 3855 strlen((char *)chap_tbl.name)); 3856 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3857 (char *)chap_tbl.secret, 3858 chap_tbl.secret_len); 3859 } 3860 } 3861 } 3862 3863 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3864 struct ddb_entry *ddb_entry) 3865 { 3866 struct iscsi_cls_session *cls_sess; 3867 struct iscsi_cls_conn *cls_conn; 3868 uint32_t ddb_state; 3869 dma_addr_t fw_ddb_entry_dma; 3870 struct dev_db_entry *fw_ddb_entry; 3871 3872 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3873 &fw_ddb_entry_dma, GFP_KERNEL); 3874 if (!fw_ddb_entry) { 3875 ql4_printk(KERN_ERR, ha, 3876 "%s: Unable to allocate dma buffer\n", __func__); 3877 goto exit_session_conn_fwddb_param; 3878 } 3879 3880 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3881 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3882 NULL, NULL, NULL) == QLA_ERROR) { 3883 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3884 "get_ddb_entry for fw_ddb_index %d\n", 3885 ha->host_no, __func__, 3886 ddb_entry->fw_ddb_index)); 3887 goto exit_session_conn_fwddb_param; 3888 } 3889 3890 cls_sess = ddb_entry->sess; 3891 3892 cls_conn = ddb_entry->conn; 3893 3894 /* Update params */ 3895 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3896 3897 exit_session_conn_fwddb_param: 3898 if (fw_ddb_entry) 3899 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3900 fw_ddb_entry, fw_ddb_entry_dma); 3901 } 3902 3903 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3904 struct ddb_entry *ddb_entry) 3905 { 3906 struct iscsi_cls_session *cls_sess; 3907 struct iscsi_cls_conn *cls_conn; 3908 struct iscsi_session *sess; 3909 struct iscsi_conn *conn; 3910 uint32_t ddb_state; 3911 dma_addr_t fw_ddb_entry_dma; 3912 struct dev_db_entry *fw_ddb_entry; 3913 3914 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3915 &fw_ddb_entry_dma, GFP_KERNEL); 3916 if (!fw_ddb_entry) { 3917 ql4_printk(KERN_ERR, ha, 3918 "%s: Unable to allocate dma buffer\n", __func__); 3919 goto exit_session_conn_param; 3920 } 3921 3922 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3923 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3924 NULL, NULL, NULL) == QLA_ERROR) { 3925 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3926 "get_ddb_entry for fw_ddb_index %d\n", 3927 ha->host_no, __func__, 3928 ddb_entry->fw_ddb_index)); 3929 goto exit_session_conn_param; 3930 } 3931 3932 cls_sess = ddb_entry->sess; 3933 sess = cls_sess->dd_data; 3934 3935 cls_conn = ddb_entry->conn; 3936 conn = cls_conn->dd_data; 3937 3938 /* Update timers after login */ 3939 ddb_entry->default_relogin_timeout = 3940 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3941 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3942 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3943 ddb_entry->default_time2wait = 3944 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3945 3946 /* Update params */ 3947 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3948 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3949 3950 memcpy(sess->initiatorname, ha->name_string, 3951 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 3952 3953 exit_session_conn_param: 3954 if (fw_ddb_entry) 3955 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3956 fw_ddb_entry, fw_ddb_entry_dma); 3957 } 3958 3959 /* 3960 * Timer routines 3961 */ 3962 3963 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 3964 unsigned long interval) 3965 { 3966 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 3967 __func__, ha->host->host_no)); 3968 init_timer(&ha->timer); 3969 ha->timer.expires = jiffies + interval * HZ; 3970 ha->timer.data = (unsigned long)ha; 3971 ha->timer.function = (void (*)(unsigned long))func; 3972 add_timer(&ha->timer); 3973 ha->timer_active = 1; 3974 } 3975 3976 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 3977 { 3978 del_timer_sync(&ha->timer); 3979 ha->timer_active = 0; 3980 } 3981 3982 /*** 3983 * qla4xxx_mark_device_missing - blocks the session 3984 * @cls_session: Pointer to the session to be blocked 3985 * @ddb_entry: Pointer to device database entry 3986 * 3987 * This routine marks a device missing and close connection. 3988 **/ 3989 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 3990 { 3991 iscsi_block_session(cls_session); 3992 } 3993 3994 /** 3995 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 3996 * @ha: Pointer to host adapter structure. 3997 * 3998 * This routine marks a device missing and resets the relogin retry count. 3999 **/ 4000 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 4001 { 4002 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 4003 } 4004 4005 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 4006 struct ddb_entry *ddb_entry, 4007 struct scsi_cmnd *cmd) 4008 { 4009 struct srb *srb; 4010 4011 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 4012 if (!srb) 4013 return srb; 4014 4015 kref_init(&srb->srb_ref); 4016 srb->ha = ha; 4017 srb->ddb = ddb_entry; 4018 srb->cmd = cmd; 4019 srb->flags = 0; 4020 CMD_SP(cmd) = (void *)srb; 4021 4022 return srb; 4023 } 4024 4025 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4026 { 4027 struct scsi_cmnd *cmd = srb->cmd; 4028 4029 if (srb->flags & SRB_DMA_VALID) { 4030 scsi_dma_unmap(cmd); 4031 srb->flags &= ~SRB_DMA_VALID; 4032 } 4033 CMD_SP(cmd) = NULL; 4034 } 4035 4036 void qla4xxx_srb_compl(struct kref *ref) 4037 { 4038 struct srb *srb = container_of(ref, struct srb, srb_ref); 4039 struct scsi_cmnd *cmd = srb->cmd; 4040 struct scsi_qla_host *ha = srb->ha; 4041 4042 qla4xxx_srb_free_dma(ha, srb); 4043 4044 mempool_free(srb, ha->srb_mempool); 4045 4046 cmd->scsi_done(cmd); 4047 } 4048 4049 /** 4050 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4051 * @host: scsi host 4052 * @cmd: Pointer to Linux's SCSI command structure 4053 * 4054 * Remarks: 4055 * This routine is invoked by Linux to send a SCSI command to the driver. 4056 * The mid-level driver tries to ensure that queuecommand never gets 4057 * invoked concurrently with itself or the interrupt handler (although 4058 * the interrupt handler may call this routine as part of request- 4059 * completion handling). Unfortunely, it sometimes calls the scheduler 4060 * in interrupt context which is a big NO! NO!. 4061 **/ 4062 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4063 { 4064 struct scsi_qla_host *ha = to_qla_host(host); 4065 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4066 struct iscsi_cls_session *sess = ddb_entry->sess; 4067 struct srb *srb; 4068 int rval; 4069 4070 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4071 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4072 cmd->result = DID_NO_CONNECT << 16; 4073 else 4074 cmd->result = DID_REQUEUE << 16; 4075 goto qc_fail_command; 4076 } 4077 4078 if (!sess) { 4079 cmd->result = DID_IMM_RETRY << 16; 4080 goto qc_fail_command; 4081 } 4082 4083 rval = iscsi_session_chkready(sess); 4084 if (rval) { 4085 cmd->result = rval; 4086 goto qc_fail_command; 4087 } 4088 4089 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4090 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4091 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4092 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4093 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4094 !test_bit(AF_ONLINE, &ha->flags) || 4095 !test_bit(AF_LINK_UP, &ha->flags) || 4096 test_bit(AF_LOOPBACK, &ha->flags) || 4097 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4098 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4099 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4100 goto qc_host_busy; 4101 4102 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4103 if (!srb) 4104 goto qc_host_busy; 4105 4106 rval = qla4xxx_send_command_to_isp(ha, srb); 4107 if (rval != QLA_SUCCESS) 4108 goto qc_host_busy_free_sp; 4109 4110 return 0; 4111 4112 qc_host_busy_free_sp: 4113 qla4xxx_srb_free_dma(ha, srb); 4114 mempool_free(srb, ha->srb_mempool); 4115 4116 qc_host_busy: 4117 return SCSI_MLQUEUE_HOST_BUSY; 4118 4119 qc_fail_command: 4120 cmd->scsi_done(cmd); 4121 4122 return 0; 4123 } 4124 4125 /** 4126 * qla4xxx_mem_free - frees memory allocated to adapter 4127 * @ha: Pointer to host adapter structure. 4128 * 4129 * Frees memory previously allocated by qla4xxx_mem_alloc 4130 **/ 4131 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4132 { 4133 if (ha->queues) 4134 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4135 ha->queues_dma); 4136 4137 if (ha->fw_dump) 4138 vfree(ha->fw_dump); 4139 4140 ha->queues_len = 0; 4141 ha->queues = NULL; 4142 ha->queues_dma = 0; 4143 ha->request_ring = NULL; 4144 ha->request_dma = 0; 4145 ha->response_ring = NULL; 4146 ha->response_dma = 0; 4147 ha->shadow_regs = NULL; 4148 ha->shadow_regs_dma = 0; 4149 ha->fw_dump = NULL; 4150 ha->fw_dump_size = 0; 4151 4152 /* Free srb pool. */ 4153 if (ha->srb_mempool) 4154 mempool_destroy(ha->srb_mempool); 4155 4156 ha->srb_mempool = NULL; 4157 4158 if (ha->chap_dma_pool) 4159 dma_pool_destroy(ha->chap_dma_pool); 4160 4161 if (ha->chap_list) 4162 vfree(ha->chap_list); 4163 ha->chap_list = NULL; 4164 4165 if (ha->fw_ddb_dma_pool) 4166 dma_pool_destroy(ha->fw_ddb_dma_pool); 4167 4168 /* release io space registers */ 4169 if (is_qla8022(ha)) { 4170 if (ha->nx_pcibase) 4171 iounmap( 4172 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4173 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4174 if (ha->nx_pcibase) 4175 iounmap( 4176 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4177 } else if (ha->reg) { 4178 iounmap(ha->reg); 4179 } 4180 4181 if (ha->reset_tmplt.buff) 4182 vfree(ha->reset_tmplt.buff); 4183 4184 pci_release_regions(ha->pdev); 4185 } 4186 4187 /** 4188 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4189 * @ha: Pointer to host adapter structure 4190 * 4191 * Allocates DMA memory for request and response queues. Also allocates memory 4192 * for srbs. 4193 **/ 4194 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4195 { 4196 unsigned long align; 4197 4198 /* Allocate contiguous block of DMA memory for queues. */ 4199 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4200 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4201 sizeof(struct shadow_regs) + 4202 MEM_ALIGN_VALUE + 4203 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4204 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 4205 &ha->queues_dma, GFP_KERNEL); 4206 if (ha->queues == NULL) { 4207 ql4_printk(KERN_WARNING, ha, 4208 "Memory Allocation failed - queues.\n"); 4209 4210 goto mem_alloc_error_exit; 4211 } 4212 memset(ha->queues, 0, ha->queues_len); 4213 4214 /* 4215 * As per RISC alignment requirements -- the bus-address must be a 4216 * multiple of the request-ring size (in bytes). 4217 */ 4218 align = 0; 4219 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4220 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4221 (MEM_ALIGN_VALUE - 1)); 4222 4223 /* Update request and response queue pointers. */ 4224 ha->request_dma = ha->queues_dma + align; 4225 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4226 ha->response_dma = ha->queues_dma + align + 4227 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4228 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4229 (REQUEST_QUEUE_DEPTH * 4230 QUEUE_SIZE)); 4231 ha->shadow_regs_dma = ha->queues_dma + align + 4232 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4233 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4234 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4235 (REQUEST_QUEUE_DEPTH * 4236 QUEUE_SIZE) + 4237 (RESPONSE_QUEUE_DEPTH * 4238 QUEUE_SIZE)); 4239 4240 /* Allocate memory for srb pool. */ 4241 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4242 mempool_free_slab, srb_cachep); 4243 if (ha->srb_mempool == NULL) { 4244 ql4_printk(KERN_WARNING, ha, 4245 "Memory Allocation failed - SRB Pool.\n"); 4246 4247 goto mem_alloc_error_exit; 4248 } 4249 4250 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4251 CHAP_DMA_BLOCK_SIZE, 8, 0); 4252 4253 if (ha->chap_dma_pool == NULL) { 4254 ql4_printk(KERN_WARNING, ha, 4255 "%s: chap_dma_pool allocation failed..\n", __func__); 4256 goto mem_alloc_error_exit; 4257 } 4258 4259 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4260 DDB_DMA_BLOCK_SIZE, 8, 0); 4261 4262 if (ha->fw_ddb_dma_pool == NULL) { 4263 ql4_printk(KERN_WARNING, ha, 4264 "%s: fw_ddb_dma_pool allocation failed..\n", 4265 __func__); 4266 goto mem_alloc_error_exit; 4267 } 4268 4269 return QLA_SUCCESS; 4270 4271 mem_alloc_error_exit: 4272 qla4xxx_mem_free(ha); 4273 return QLA_ERROR; 4274 } 4275 4276 /** 4277 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4278 * @ha: adapter block pointer. 4279 * 4280 * Note: The caller should not hold the idc lock. 4281 **/ 4282 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4283 { 4284 uint32_t temp, temp_state, temp_val; 4285 int status = QLA_SUCCESS; 4286 4287 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4288 4289 temp_state = qla82xx_get_temp_state(temp); 4290 temp_val = qla82xx_get_temp_val(temp); 4291 4292 if (temp_state == QLA82XX_TEMP_PANIC) { 4293 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4294 " exceeds maximum allowed. Hardware has been shut" 4295 " down.\n", temp_val); 4296 status = QLA_ERROR; 4297 } else if (temp_state == QLA82XX_TEMP_WARN) { 4298 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4299 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4300 " degrees C exceeds operating range." 4301 " Immediate action needed.\n", temp_val); 4302 } else { 4303 if (ha->temperature == QLA82XX_TEMP_WARN) 4304 ql4_printk(KERN_INFO, ha, "Device temperature is" 4305 " now %d degrees C in normal range.\n", 4306 temp_val); 4307 } 4308 ha->temperature = temp_state; 4309 return status; 4310 } 4311 4312 /** 4313 * qla4_8xxx_check_fw_alive - Check firmware health 4314 * @ha: Pointer to host adapter structure. 4315 * 4316 * Context: Interrupt 4317 **/ 4318 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4319 { 4320 uint32_t fw_heartbeat_counter; 4321 int status = QLA_SUCCESS; 4322 4323 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4324 QLA8XXX_PEG_ALIVE_COUNTER); 4325 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4326 if (fw_heartbeat_counter == 0xffffffff) { 4327 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4328 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4329 ha->host_no, __func__)); 4330 return status; 4331 } 4332 4333 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4334 ha->seconds_since_last_heartbeat++; 4335 /* FW not alive after 2 seconds */ 4336 if (ha->seconds_since_last_heartbeat == 2) { 4337 ha->seconds_since_last_heartbeat = 0; 4338 qla4_8xxx_dump_peg_reg(ha); 4339 status = QLA_ERROR; 4340 } 4341 } else 4342 ha->seconds_since_last_heartbeat = 0; 4343 4344 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4345 return status; 4346 } 4347 4348 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4349 { 4350 uint32_t halt_status; 4351 int halt_status_unrecoverable = 0; 4352 4353 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4354 4355 if (is_qla8022(ha)) { 4356 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4357 __func__); 4358 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4359 CRB_NIU_XG_PAUSE_CTL_P0 | 4360 CRB_NIU_XG_PAUSE_CTL_P1); 4361 4362 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4363 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4364 __func__); 4365 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4366 halt_status_unrecoverable = 1; 4367 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4368 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4369 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4370 __func__); 4371 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4372 halt_status_unrecoverable = 1; 4373 } 4374 4375 /* 4376 * Since we cannot change dev_state in interrupt context, 4377 * set appropriate DPC flag then wakeup DPC 4378 */ 4379 if (halt_status_unrecoverable) { 4380 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4381 } else { 4382 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4383 __func__); 4384 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4385 } 4386 qla4xxx_mailbox_premature_completion(ha); 4387 qla4xxx_wake_dpc(ha); 4388 } 4389 4390 /** 4391 * qla4_8xxx_watchdog - Poll dev state 4392 * @ha: Pointer to host adapter structure. 4393 * 4394 * Context: Interrupt 4395 **/ 4396 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4397 { 4398 uint32_t dev_state; 4399 uint32_t idc_ctrl; 4400 4401 if (is_qla8032(ha) && 4402 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4403 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4404 __func__, ha->func_num); 4405 4406 /* don't poll if reset is going on */ 4407 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4408 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4409 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4410 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4411 4412 if (qla4_8xxx_check_temp(ha)) { 4413 if (is_qla8022(ha)) { 4414 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4415 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4416 CRB_NIU_XG_PAUSE_CTL_P0 | 4417 CRB_NIU_XG_PAUSE_CTL_P1); 4418 } 4419 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4420 qla4xxx_wake_dpc(ha); 4421 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4422 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4423 4424 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4425 __func__); 4426 4427 if (is_qla8032(ha) || is_qla8042(ha)) { 4428 idc_ctrl = qla4_83xx_rd_reg(ha, 4429 QLA83XX_IDC_DRV_CTRL); 4430 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4431 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4432 __func__); 4433 qla4xxx_mailbox_premature_completion( 4434 ha); 4435 } 4436 } 4437 4438 if ((is_qla8032(ha) || is_qla8042(ha)) || 4439 (is_qla8022(ha) && !ql4xdontresethba)) { 4440 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4441 qla4xxx_wake_dpc(ha); 4442 } 4443 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4444 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4445 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4446 __func__); 4447 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4448 qla4xxx_wake_dpc(ha); 4449 } else { 4450 /* Check firmware health */ 4451 if (qla4_8xxx_check_fw_alive(ha)) 4452 qla4_8xxx_process_fw_error(ha); 4453 } 4454 } 4455 } 4456 4457 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4458 { 4459 struct iscsi_session *sess; 4460 struct ddb_entry *ddb_entry; 4461 struct scsi_qla_host *ha; 4462 4463 sess = cls_sess->dd_data; 4464 ddb_entry = sess->dd_data; 4465 ha = ddb_entry->ha; 4466 4467 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4468 return; 4469 4470 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4471 !iscsi_is_session_online(cls_sess)) { 4472 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4473 INVALID_ENTRY) { 4474 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4475 0) { 4476 atomic_set(&ddb_entry->retry_relogin_timer, 4477 INVALID_ENTRY); 4478 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4479 set_bit(DF_RELOGIN, &ddb_entry->flags); 4480 DEBUG2(ql4_printk(KERN_INFO, ha, 4481 "%s: index [%d] login device\n", 4482 __func__, ddb_entry->fw_ddb_index)); 4483 } else 4484 atomic_dec(&ddb_entry->retry_relogin_timer); 4485 } 4486 } 4487 4488 /* Wait for relogin to timeout */ 4489 if (atomic_read(&ddb_entry->relogin_timer) && 4490 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4491 /* 4492 * If the relogin times out and the device is 4493 * still NOT ONLINE then try and relogin again. 4494 */ 4495 if (!iscsi_is_session_online(cls_sess)) { 4496 /* Reset retry relogin timer */ 4497 atomic_inc(&ddb_entry->relogin_retry_count); 4498 DEBUG2(ql4_printk(KERN_INFO, ha, 4499 "%s: index[%d] relogin timed out-retrying" 4500 " relogin (%d), retry (%d)\n", __func__, 4501 ddb_entry->fw_ddb_index, 4502 atomic_read(&ddb_entry->relogin_retry_count), 4503 ddb_entry->default_time2wait + 4)); 4504 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4505 atomic_set(&ddb_entry->retry_relogin_timer, 4506 ddb_entry->default_time2wait + 4); 4507 } 4508 } 4509 } 4510 4511 /** 4512 * qla4xxx_timer - checks every second for work to do. 4513 * @ha: Pointer to host adapter structure. 4514 **/ 4515 static void qla4xxx_timer(struct scsi_qla_host *ha) 4516 { 4517 int start_dpc = 0; 4518 uint16_t w; 4519 4520 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4521 4522 /* If we are in the middle of AER/EEH processing 4523 * skip any processing and reschedule the timer 4524 */ 4525 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4526 mod_timer(&ha->timer, jiffies + HZ); 4527 return; 4528 } 4529 4530 /* Hardware read to trigger an EEH error during mailbox waits. */ 4531 if (!pci_channel_offline(ha->pdev)) 4532 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4533 4534 if (is_qla80XX(ha)) 4535 qla4_8xxx_watchdog(ha); 4536 4537 if (is_qla40XX(ha)) { 4538 /* Check for heartbeat interval. */ 4539 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4540 ha->heartbeat_interval != 0) { 4541 ha->seconds_since_last_heartbeat++; 4542 if (ha->seconds_since_last_heartbeat > 4543 ha->heartbeat_interval + 2) 4544 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4545 } 4546 } 4547 4548 /* Process any deferred work. */ 4549 if (!list_empty(&ha->work_list)) 4550 start_dpc++; 4551 4552 /* Wakeup the dpc routine for this adapter, if needed. */ 4553 if (start_dpc || 4554 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4555 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4556 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4557 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4558 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4559 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4560 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4561 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4562 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4563 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) || 4564 test_bit(DPC_AEN, &ha->dpc_flags)) { 4565 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4566 " - dpc flags = 0x%lx\n", 4567 ha->host_no, __func__, ha->dpc_flags)); 4568 qla4xxx_wake_dpc(ha); 4569 } 4570 4571 /* Reschedule timer thread to call us back in one second */ 4572 mod_timer(&ha->timer, jiffies + HZ); 4573 4574 DEBUG2(ha->seconds_since_last_intr++); 4575 } 4576 4577 /** 4578 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4579 * @ha: Pointer to host adapter structure. 4580 * 4581 * This routine stalls the driver until all outstanding commands are returned. 4582 * Caller must release the Hardware Lock prior to calling this routine. 4583 **/ 4584 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4585 { 4586 uint32_t index = 0; 4587 unsigned long flags; 4588 struct scsi_cmnd *cmd; 4589 unsigned long wtime; 4590 uint32_t wtmo; 4591 4592 if (is_qla40XX(ha)) 4593 wtmo = WAIT_CMD_TOV; 4594 else 4595 wtmo = ha->nx_reset_timeout / 2; 4596 4597 wtime = jiffies + (wtmo * HZ); 4598 4599 DEBUG2(ql4_printk(KERN_INFO, ha, 4600 "Wait up to %u seconds for cmds to complete\n", 4601 wtmo)); 4602 4603 while (!time_after_eq(jiffies, wtime)) { 4604 spin_lock_irqsave(&ha->hardware_lock, flags); 4605 /* Find a command that hasn't completed. */ 4606 for (index = 0; index < ha->host->can_queue; index++) { 4607 cmd = scsi_host_find_tag(ha->host, index); 4608 /* 4609 * We cannot just check if the index is valid, 4610 * becase if we are run from the scsi eh, then 4611 * the scsi/block layer is going to prevent 4612 * the tag from being released. 4613 */ 4614 if (cmd != NULL && CMD_SP(cmd)) 4615 break; 4616 } 4617 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4618 4619 /* If No Commands are pending, wait is complete */ 4620 if (index == ha->host->can_queue) 4621 return QLA_SUCCESS; 4622 4623 msleep(1000); 4624 } 4625 /* If we timed out on waiting for commands to come back 4626 * return ERROR. */ 4627 return QLA_ERROR; 4628 } 4629 4630 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4631 { 4632 uint32_t ctrl_status; 4633 unsigned long flags = 0; 4634 4635 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4636 4637 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4638 return QLA_ERROR; 4639 4640 spin_lock_irqsave(&ha->hardware_lock, flags); 4641 4642 /* 4643 * If the SCSI Reset Interrupt bit is set, clear it. 4644 * Otherwise, the Soft Reset won't work. 4645 */ 4646 ctrl_status = readw(&ha->reg->ctrl_status); 4647 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4648 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4649 4650 /* Issue Soft Reset */ 4651 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4652 readl(&ha->reg->ctrl_status); 4653 4654 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4655 return QLA_SUCCESS; 4656 } 4657 4658 /** 4659 * qla4xxx_soft_reset - performs soft reset. 4660 * @ha: Pointer to host adapter structure. 4661 **/ 4662 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4663 { 4664 uint32_t max_wait_time; 4665 unsigned long flags = 0; 4666 int status; 4667 uint32_t ctrl_status; 4668 4669 status = qla4xxx_hw_reset(ha); 4670 if (status != QLA_SUCCESS) 4671 return status; 4672 4673 status = QLA_ERROR; 4674 /* Wait until the Network Reset Intr bit is cleared */ 4675 max_wait_time = RESET_INTR_TOV; 4676 do { 4677 spin_lock_irqsave(&ha->hardware_lock, flags); 4678 ctrl_status = readw(&ha->reg->ctrl_status); 4679 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4680 4681 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4682 break; 4683 4684 msleep(1000); 4685 } while ((--max_wait_time)); 4686 4687 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4688 DEBUG2(printk(KERN_WARNING 4689 "scsi%ld: Network Reset Intr not cleared by " 4690 "Network function, clearing it now!\n", 4691 ha->host_no)); 4692 spin_lock_irqsave(&ha->hardware_lock, flags); 4693 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4694 readl(&ha->reg->ctrl_status); 4695 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4696 } 4697 4698 /* Wait until the firmware tells us the Soft Reset is done */ 4699 max_wait_time = SOFT_RESET_TOV; 4700 do { 4701 spin_lock_irqsave(&ha->hardware_lock, flags); 4702 ctrl_status = readw(&ha->reg->ctrl_status); 4703 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4704 4705 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4706 status = QLA_SUCCESS; 4707 break; 4708 } 4709 4710 msleep(1000); 4711 } while ((--max_wait_time)); 4712 4713 /* 4714 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4715 * after the soft reset has taken place. 4716 */ 4717 spin_lock_irqsave(&ha->hardware_lock, flags); 4718 ctrl_status = readw(&ha->reg->ctrl_status); 4719 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4720 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4721 readl(&ha->reg->ctrl_status); 4722 } 4723 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4724 4725 /* If soft reset fails then most probably the bios on other 4726 * function is also enabled. 4727 * Since the initialization is sequential the other fn 4728 * wont be able to acknowledge the soft reset. 4729 * Issue a force soft reset to workaround this scenario. 4730 */ 4731 if (max_wait_time == 0) { 4732 /* Issue Force Soft Reset */ 4733 spin_lock_irqsave(&ha->hardware_lock, flags); 4734 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4735 readl(&ha->reg->ctrl_status); 4736 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4737 /* Wait until the firmware tells us the Soft Reset is done */ 4738 max_wait_time = SOFT_RESET_TOV; 4739 do { 4740 spin_lock_irqsave(&ha->hardware_lock, flags); 4741 ctrl_status = readw(&ha->reg->ctrl_status); 4742 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4743 4744 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4745 status = QLA_SUCCESS; 4746 break; 4747 } 4748 4749 msleep(1000); 4750 } while ((--max_wait_time)); 4751 } 4752 4753 return status; 4754 } 4755 4756 /** 4757 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4758 * @ha: Pointer to host adapter structure. 4759 * @res: returned scsi status 4760 * 4761 * This routine is called just prior to a HARD RESET to return all 4762 * outstanding commands back to the Operating System. 4763 * Caller should make sure that the following locks are released 4764 * before this calling routine: Hardware lock, and io_request_lock. 4765 **/ 4766 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4767 { 4768 struct srb *srb; 4769 int i; 4770 unsigned long flags; 4771 4772 spin_lock_irqsave(&ha->hardware_lock, flags); 4773 for (i = 0; i < ha->host->can_queue; i++) { 4774 srb = qla4xxx_del_from_active_array(ha, i); 4775 if (srb != NULL) { 4776 srb->cmd->result = res; 4777 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4778 } 4779 } 4780 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4781 } 4782 4783 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4784 { 4785 clear_bit(AF_ONLINE, &ha->flags); 4786 4787 /* Disable the board */ 4788 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4789 4790 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4791 qla4xxx_mark_all_devices_missing(ha); 4792 clear_bit(AF_INIT_DONE, &ha->flags); 4793 } 4794 4795 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4796 { 4797 struct iscsi_session *sess; 4798 struct ddb_entry *ddb_entry; 4799 4800 sess = cls_session->dd_data; 4801 ddb_entry = sess->dd_data; 4802 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4803 4804 if (ddb_entry->ddb_type == FLASH_DDB) 4805 iscsi_block_session(ddb_entry->sess); 4806 else 4807 iscsi_session_failure(cls_session->dd_data, 4808 ISCSI_ERR_CONN_FAILED); 4809 } 4810 4811 /** 4812 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4813 * @ha: Pointer to host adapter structure. 4814 **/ 4815 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4816 { 4817 int status = QLA_ERROR; 4818 uint8_t reset_chip = 0; 4819 uint32_t dev_state; 4820 unsigned long wait; 4821 4822 /* Stall incoming I/O until we are done */ 4823 scsi_block_requests(ha->host); 4824 clear_bit(AF_ONLINE, &ha->flags); 4825 clear_bit(AF_LINK_UP, &ha->flags); 4826 4827 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4828 4829 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4830 4831 if ((is_qla8032(ha) || is_qla8042(ha)) && 4832 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4833 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4834 __func__); 4835 /* disable pause frame for ISP83xx */ 4836 qla4_83xx_disable_pause(ha); 4837 } 4838 4839 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4840 4841 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4842 reset_chip = 1; 4843 4844 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4845 * do not reset adapter, jump to initialize_adapter */ 4846 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4847 status = QLA_SUCCESS; 4848 goto recover_ha_init_adapter; 4849 } 4850 4851 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4852 * from eh_host_reset or ioctl module */ 4853 if (is_qla80XX(ha) && !reset_chip && 4854 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4855 4856 DEBUG2(ql4_printk(KERN_INFO, ha, 4857 "scsi%ld: %s - Performing stop_firmware...\n", 4858 ha->host_no, __func__)); 4859 status = ha->isp_ops->reset_firmware(ha); 4860 if (status == QLA_SUCCESS) { 4861 ha->isp_ops->disable_intrs(ha); 4862 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4863 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4864 } else { 4865 /* If the stop_firmware fails then 4866 * reset the entire chip */ 4867 reset_chip = 1; 4868 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4869 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4870 } 4871 } 4872 4873 /* Issue full chip reset if recovering from a catastrophic error, 4874 * or if stop_firmware fails for ISP-8xxx. 4875 * This is the default case for ISP-4xxx */ 4876 if (is_qla40XX(ha) || reset_chip) { 4877 if (is_qla40XX(ha)) 4878 goto chip_reset; 4879 4880 /* Check if 8XXX firmware is alive or not 4881 * We may have arrived here from NEED_RESET 4882 * detection only */ 4883 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4884 goto chip_reset; 4885 4886 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4887 while (time_before(jiffies, wait)) { 4888 if (qla4_8xxx_check_fw_alive(ha)) { 4889 qla4xxx_mailbox_premature_completion(ha); 4890 break; 4891 } 4892 4893 set_current_state(TASK_UNINTERRUPTIBLE); 4894 schedule_timeout(HZ); 4895 } 4896 chip_reset: 4897 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4898 qla4xxx_cmd_wait(ha); 4899 4900 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4901 DEBUG2(ql4_printk(KERN_INFO, ha, 4902 "scsi%ld: %s - Performing chip reset..\n", 4903 ha->host_no, __func__)); 4904 status = ha->isp_ops->reset_chip(ha); 4905 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4906 } 4907 4908 /* Flush any pending ddb changed AENs */ 4909 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4910 4911 recover_ha_init_adapter: 4912 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4913 if (status == QLA_SUCCESS) { 4914 /* For ISP-4xxx, force function 1 to always initialize 4915 * before function 3 to prevent both funcions from 4916 * stepping on top of the other */ 4917 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4918 ssleep(6); 4919 4920 /* NOTE: AF_ONLINE flag set upon successful completion of 4921 * qla4xxx_initialize_adapter */ 4922 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4923 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4924 status = qla4_8xxx_check_init_adapter_retry(ha); 4925 if (status == QLA_ERROR) { 4926 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4927 ha->host_no, __func__); 4928 qla4xxx_dead_adapter_cleanup(ha); 4929 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4930 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4931 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4932 &ha->dpc_flags); 4933 goto exit_recover; 4934 } 4935 } 4936 } 4937 4938 /* Retry failed adapter initialization, if necessary 4939 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4940 * case to prevent ping-pong resets between functions */ 4941 if (!test_bit(AF_ONLINE, &ha->flags) && 4942 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4943 /* Adapter initialization failed, see if we can retry 4944 * resetting the ha. 4945 * Since we don't want to block the DPC for too long 4946 * with multiple resets in the same thread, 4947 * utilize DPC to retry */ 4948 if (is_qla80XX(ha)) { 4949 ha->isp_ops->idc_lock(ha); 4950 dev_state = qla4_8xxx_rd_direct(ha, 4951 QLA8XXX_CRB_DEV_STATE); 4952 ha->isp_ops->idc_unlock(ha); 4953 if (dev_state == QLA8XXX_DEV_FAILED) { 4954 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4955 "recover adapter. H/W is in Failed " 4956 "state\n", __func__); 4957 qla4xxx_dead_adapter_cleanup(ha); 4958 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4959 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4960 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4961 &ha->dpc_flags); 4962 status = QLA_ERROR; 4963 4964 goto exit_recover; 4965 } 4966 } 4967 4968 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 4969 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 4970 DEBUG2(printk("scsi%ld: recover adapter - retrying " 4971 "(%d) more times\n", ha->host_no, 4972 ha->retry_reset_ha_cnt)); 4973 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4974 status = QLA_ERROR; 4975 } else { 4976 if (ha->retry_reset_ha_cnt > 0) { 4977 /* Schedule another Reset HA--DPC will retry */ 4978 ha->retry_reset_ha_cnt--; 4979 DEBUG2(printk("scsi%ld: recover adapter - " 4980 "retry remaining %d\n", 4981 ha->host_no, 4982 ha->retry_reset_ha_cnt)); 4983 status = QLA_ERROR; 4984 } 4985 4986 if (ha->retry_reset_ha_cnt == 0) { 4987 /* Recover adapter retries have been exhausted. 4988 * Adapter DEAD */ 4989 DEBUG2(printk("scsi%ld: recover adapter " 4990 "failed - board disabled\n", 4991 ha->host_no)); 4992 qla4xxx_dead_adapter_cleanup(ha); 4993 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4994 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4995 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4996 &ha->dpc_flags); 4997 status = QLA_ERROR; 4998 } 4999 } 5000 } else { 5001 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5002 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5003 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5004 } 5005 5006 exit_recover: 5007 ha->adapter_error_count++; 5008 5009 if (test_bit(AF_ONLINE, &ha->flags)) 5010 ha->isp_ops->enable_intrs(ha); 5011 5012 scsi_unblock_requests(ha->host); 5013 5014 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 5015 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 5016 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 5017 5018 return status; 5019 } 5020 5021 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 5022 { 5023 struct iscsi_session *sess; 5024 struct ddb_entry *ddb_entry; 5025 struct scsi_qla_host *ha; 5026 5027 sess = cls_session->dd_data; 5028 ddb_entry = sess->dd_data; 5029 ha = ddb_entry->ha; 5030 if (!iscsi_is_session_online(cls_session)) { 5031 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5032 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5033 " unblock session\n", ha->host_no, __func__, 5034 ddb_entry->fw_ddb_index); 5035 iscsi_unblock_session(ddb_entry->sess); 5036 } else { 5037 /* Trigger relogin */ 5038 if (ddb_entry->ddb_type == FLASH_DDB) { 5039 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5040 test_bit(DF_DISABLE_RELOGIN, 5041 &ddb_entry->flags))) 5042 qla4xxx_arm_relogin_timer(ddb_entry); 5043 } else 5044 iscsi_session_failure(cls_session->dd_data, 5045 ISCSI_ERR_CONN_FAILED); 5046 } 5047 } 5048 } 5049 5050 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5051 { 5052 struct iscsi_session *sess; 5053 struct ddb_entry *ddb_entry; 5054 struct scsi_qla_host *ha; 5055 5056 sess = cls_session->dd_data; 5057 ddb_entry = sess->dd_data; 5058 ha = ddb_entry->ha; 5059 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5060 " unblock session\n", ha->host_no, __func__, 5061 ddb_entry->fw_ddb_index); 5062 5063 iscsi_unblock_session(ddb_entry->sess); 5064 5065 /* Start scan target */ 5066 if (test_bit(AF_ONLINE, &ha->flags)) { 5067 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5068 " start scan\n", ha->host_no, __func__, 5069 ddb_entry->fw_ddb_index); 5070 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 5071 } 5072 return QLA_SUCCESS; 5073 } 5074 5075 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5076 { 5077 struct iscsi_session *sess; 5078 struct ddb_entry *ddb_entry; 5079 struct scsi_qla_host *ha; 5080 int status = QLA_SUCCESS; 5081 5082 sess = cls_session->dd_data; 5083 ddb_entry = sess->dd_data; 5084 ha = ddb_entry->ha; 5085 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5086 " unblock user space session\n", ha->host_no, __func__, 5087 ddb_entry->fw_ddb_index); 5088 5089 if (!iscsi_is_session_online(cls_session)) { 5090 iscsi_conn_start(ddb_entry->conn); 5091 iscsi_conn_login_event(ddb_entry->conn, 5092 ISCSI_CONN_STATE_LOGGED_IN); 5093 } else { 5094 ql4_printk(KERN_INFO, ha, 5095 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5096 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5097 cls_session->sid); 5098 status = QLA_ERROR; 5099 } 5100 5101 return status; 5102 } 5103 5104 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5105 { 5106 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5107 } 5108 5109 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5110 { 5111 uint16_t relogin_timer; 5112 struct iscsi_session *sess; 5113 struct ddb_entry *ddb_entry; 5114 struct scsi_qla_host *ha; 5115 5116 sess = cls_sess->dd_data; 5117 ddb_entry = sess->dd_data; 5118 ha = ddb_entry->ha; 5119 5120 relogin_timer = max(ddb_entry->default_relogin_timeout, 5121 (uint16_t)RELOGIN_TOV); 5122 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5123 5124 DEBUG2(ql4_printk(KERN_INFO, ha, 5125 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5126 ddb_entry->fw_ddb_index, relogin_timer)); 5127 5128 qla4xxx_login_flash_ddb(cls_sess); 5129 } 5130 5131 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5132 { 5133 struct iscsi_session *sess; 5134 struct ddb_entry *ddb_entry; 5135 struct scsi_qla_host *ha; 5136 5137 sess = cls_sess->dd_data; 5138 ddb_entry = sess->dd_data; 5139 ha = ddb_entry->ha; 5140 5141 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5142 return; 5143 5144 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5145 return; 5146 5147 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5148 !iscsi_is_session_online(cls_sess)) { 5149 DEBUG2(ql4_printk(KERN_INFO, ha, 5150 "relogin issued\n")); 5151 qla4xxx_relogin_flash_ddb(cls_sess); 5152 } 5153 } 5154 5155 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5156 { 5157 if (ha->dpc_thread) 5158 queue_work(ha->dpc_thread, &ha->dpc_work); 5159 } 5160 5161 static struct qla4_work_evt * 5162 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5163 enum qla4_work_type type) 5164 { 5165 struct qla4_work_evt *e; 5166 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5167 5168 e = kzalloc(size, GFP_ATOMIC); 5169 if (!e) 5170 return NULL; 5171 5172 INIT_LIST_HEAD(&e->list); 5173 e->type = type; 5174 return e; 5175 } 5176 5177 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5178 struct qla4_work_evt *e) 5179 { 5180 unsigned long flags; 5181 5182 spin_lock_irqsave(&ha->work_lock, flags); 5183 list_add_tail(&e->list, &ha->work_list); 5184 spin_unlock_irqrestore(&ha->work_lock, flags); 5185 qla4xxx_wake_dpc(ha); 5186 } 5187 5188 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5189 enum iscsi_host_event_code aen_code, 5190 uint32_t data_size, uint8_t *data) 5191 { 5192 struct qla4_work_evt *e; 5193 5194 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5195 if (!e) 5196 return QLA_ERROR; 5197 5198 e->u.aen.code = aen_code; 5199 e->u.aen.data_size = data_size; 5200 memcpy(e->u.aen.data, data, data_size); 5201 5202 qla4xxx_post_work(ha, e); 5203 5204 return QLA_SUCCESS; 5205 } 5206 5207 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5208 uint32_t status, uint32_t pid, 5209 uint32_t data_size, uint8_t *data) 5210 { 5211 struct qla4_work_evt *e; 5212 5213 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5214 if (!e) 5215 return QLA_ERROR; 5216 5217 e->u.ping.status = status; 5218 e->u.ping.pid = pid; 5219 e->u.ping.data_size = data_size; 5220 memcpy(e->u.ping.data, data, data_size); 5221 5222 qla4xxx_post_work(ha, e); 5223 5224 return QLA_SUCCESS; 5225 } 5226 5227 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5228 { 5229 struct qla4_work_evt *e, *tmp; 5230 unsigned long flags; 5231 LIST_HEAD(work); 5232 5233 spin_lock_irqsave(&ha->work_lock, flags); 5234 list_splice_init(&ha->work_list, &work); 5235 spin_unlock_irqrestore(&ha->work_lock, flags); 5236 5237 list_for_each_entry_safe(e, tmp, &work, list) { 5238 list_del_init(&e->list); 5239 5240 switch (e->type) { 5241 case QLA4_EVENT_AEN: 5242 iscsi_post_host_event(ha->host_no, 5243 &qla4xxx_iscsi_transport, 5244 e->u.aen.code, 5245 e->u.aen.data_size, 5246 e->u.aen.data); 5247 break; 5248 case QLA4_EVENT_PING_STATUS: 5249 iscsi_ping_comp_event(ha->host_no, 5250 &qla4xxx_iscsi_transport, 5251 e->u.ping.status, 5252 e->u.ping.pid, 5253 e->u.ping.data_size, 5254 e->u.ping.data); 5255 break; 5256 default: 5257 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5258 "supported", e->type); 5259 } 5260 kfree(e); 5261 } 5262 } 5263 5264 /** 5265 * qla4xxx_do_dpc - dpc routine 5266 * @data: in our case pointer to adapter structure 5267 * 5268 * This routine is a task that is schedule by the interrupt handler 5269 * to perform the background processing for interrupts. We put it 5270 * on a task queue that is consumed whenever the scheduler runs; that's 5271 * so you can do anything (i.e. put the process to sleep etc). In fact, 5272 * the mid-level tries to sleep when it reaches the driver threshold 5273 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5274 **/ 5275 static void qla4xxx_do_dpc(struct work_struct *work) 5276 { 5277 struct scsi_qla_host *ha = 5278 container_of(work, struct scsi_qla_host, dpc_work); 5279 int status = QLA_ERROR; 5280 5281 DEBUG2(ql4_printk(KERN_INFO, ha, 5282 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5283 ha->host_no, __func__, ha->flags, ha->dpc_flags)); 5284 5285 /* Initialization not yet finished. Don't do anything yet. */ 5286 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5287 return; 5288 5289 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5290 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5291 ha->host_no, __func__, ha->flags)); 5292 return; 5293 } 5294 5295 /* post events to application */ 5296 qla4xxx_do_work(ha); 5297 5298 if (is_qla80XX(ha)) { 5299 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5300 if (is_qla8032(ha) || is_qla8042(ha)) { 5301 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5302 __func__); 5303 /* disable pause frame for ISP83xx */ 5304 qla4_83xx_disable_pause(ha); 5305 } 5306 5307 ha->isp_ops->idc_lock(ha); 5308 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5309 QLA8XXX_DEV_FAILED); 5310 ha->isp_ops->idc_unlock(ha); 5311 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5312 qla4_8xxx_device_state_handler(ha); 5313 } 5314 5315 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5316 if (is_qla8042(ha)) { 5317 if (ha->idc_info.info2 & 5318 ENABLE_INTERNAL_LOOPBACK) { 5319 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5320 __func__); 5321 status = qla4_84xx_config_acb(ha, 5322 ACB_CONFIG_DISABLE); 5323 if (status != QLA_SUCCESS) { 5324 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5325 __func__); 5326 } 5327 } 5328 } 5329 qla4_83xx_post_idc_ack(ha); 5330 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5331 } 5332 5333 if (is_qla8042(ha) && 5334 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5335 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5336 __func__); 5337 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5338 QLA_SUCCESS) { 5339 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5340 __func__); 5341 } 5342 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5343 } 5344 5345 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5346 qla4_8xxx_need_qsnt_handler(ha); 5347 } 5348 } 5349 5350 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5351 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5352 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5353 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5354 if ((is_qla8022(ha) && ql4xdontresethba) || 5355 ((is_qla8032(ha) || is_qla8042(ha)) && 5356 qla4_83xx_idc_dontreset(ha))) { 5357 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5358 ha->host_no, __func__)); 5359 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5360 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5361 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5362 goto dpc_post_reset_ha; 5363 } 5364 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5365 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5366 qla4xxx_recover_adapter(ha); 5367 5368 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5369 uint8_t wait_time = RESET_INTR_TOV; 5370 5371 while ((readw(&ha->reg->ctrl_status) & 5372 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5373 if (--wait_time == 0) 5374 break; 5375 msleep(1000); 5376 } 5377 if (wait_time == 0) 5378 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5379 "bit not cleared-- resetting\n", 5380 ha->host_no, __func__)); 5381 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5382 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5383 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5384 status = qla4xxx_recover_adapter(ha); 5385 } 5386 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5387 if (status == QLA_SUCCESS) 5388 ha->isp_ops->enable_intrs(ha); 5389 } 5390 } 5391 5392 dpc_post_reset_ha: 5393 /* ---- process AEN? --- */ 5394 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5395 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5396 5397 /* ---- Get DHCP IP Address? --- */ 5398 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5399 qla4xxx_get_dhcp_ip_address(ha); 5400 5401 /* ---- relogin device? --- */ 5402 if (adapter_up(ha) && 5403 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5404 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5405 } 5406 5407 /* ---- link change? --- */ 5408 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5409 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5410 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5411 /* ---- link down? --- */ 5412 qla4xxx_mark_all_devices_missing(ha); 5413 } else { 5414 /* ---- link up? --- * 5415 * F/W will auto login to all devices ONLY ONCE after 5416 * link up during driver initialization and runtime 5417 * fatal error recovery. Therefore, the driver must 5418 * manually relogin to devices when recovering from 5419 * connection failures, logouts, expired KATO, etc. */ 5420 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5421 qla4xxx_build_ddb_list(ha, ha->is_reset); 5422 iscsi_host_for_each_session(ha->host, 5423 qla4xxx_login_flash_ddb); 5424 } else 5425 qla4xxx_relogin_all_devices(ha); 5426 } 5427 } 5428 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) { 5429 if (qla4xxx_sysfs_ddb_export(ha)) 5430 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n", 5431 __func__); 5432 } 5433 } 5434 5435 /** 5436 * qla4xxx_free_adapter - release the adapter 5437 * @ha: pointer to adapter structure 5438 **/ 5439 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5440 { 5441 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5442 5443 /* Turn-off interrupts on the card. */ 5444 ha->isp_ops->disable_intrs(ha); 5445 5446 if (is_qla40XX(ha)) { 5447 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5448 &ha->reg->ctrl_status); 5449 readl(&ha->reg->ctrl_status); 5450 } else if (is_qla8022(ha)) { 5451 writel(0, &ha->qla4_82xx_reg->host_int); 5452 readl(&ha->qla4_82xx_reg->host_int); 5453 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5454 writel(0, &ha->qla4_83xx_reg->risc_intr); 5455 readl(&ha->qla4_83xx_reg->risc_intr); 5456 } 5457 5458 /* Remove timer thread, if present */ 5459 if (ha->timer_active) 5460 qla4xxx_stop_timer(ha); 5461 5462 /* Kill the kernel thread for this host */ 5463 if (ha->dpc_thread) 5464 destroy_workqueue(ha->dpc_thread); 5465 5466 /* Kill the kernel thread for this host */ 5467 if (ha->task_wq) 5468 destroy_workqueue(ha->task_wq); 5469 5470 /* Put firmware in known state */ 5471 ha->isp_ops->reset_firmware(ha); 5472 5473 if (is_qla80XX(ha)) { 5474 ha->isp_ops->idc_lock(ha); 5475 qla4_8xxx_clear_drv_active(ha); 5476 ha->isp_ops->idc_unlock(ha); 5477 } 5478 5479 /* Detach interrupts */ 5480 qla4xxx_free_irqs(ha); 5481 5482 /* free extra memory */ 5483 qla4xxx_mem_free(ha); 5484 } 5485 5486 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5487 { 5488 int status = 0; 5489 unsigned long mem_base, mem_len, db_base, db_len; 5490 struct pci_dev *pdev = ha->pdev; 5491 5492 status = pci_request_regions(pdev, DRIVER_NAME); 5493 if (status) { 5494 printk(KERN_WARNING 5495 "scsi(%ld) Failed to reserve PIO regions (%s) " 5496 "status=%d\n", ha->host_no, pci_name(pdev), status); 5497 goto iospace_error_exit; 5498 } 5499 5500 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5501 __func__, pdev->revision)); 5502 ha->revision_id = pdev->revision; 5503 5504 /* remap phys address */ 5505 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5506 mem_len = pci_resource_len(pdev, 0); 5507 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5508 __func__, mem_base, mem_len)); 5509 5510 /* mapping of pcibase pointer */ 5511 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5512 if (!ha->nx_pcibase) { 5513 printk(KERN_ERR 5514 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5515 pci_release_regions(ha->pdev); 5516 goto iospace_error_exit; 5517 } 5518 5519 /* Mapping of IO base pointer, door bell read and write pointer */ 5520 5521 /* mapping of IO base pointer */ 5522 if (is_qla8022(ha)) { 5523 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5524 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5525 (ha->pdev->devfn << 11)); 5526 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5527 QLA82XX_CAM_RAM_DB2); 5528 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5529 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5530 ((uint8_t *)ha->nx_pcibase); 5531 } 5532 5533 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 5534 db_len = pci_resource_len(pdev, 4); 5535 5536 return 0; 5537 iospace_error_exit: 5538 return -ENOMEM; 5539 } 5540 5541 /*** 5542 * qla4xxx_iospace_config - maps registers 5543 * @ha: pointer to adapter structure 5544 * 5545 * This routines maps HBA's registers from the pci address space 5546 * into the kernel virtual address space for memory mapped i/o. 5547 **/ 5548 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5549 { 5550 unsigned long pio, pio_len, pio_flags; 5551 unsigned long mmio, mmio_len, mmio_flags; 5552 5553 pio = pci_resource_start(ha->pdev, 0); 5554 pio_len = pci_resource_len(ha->pdev, 0); 5555 pio_flags = pci_resource_flags(ha->pdev, 0); 5556 if (pio_flags & IORESOURCE_IO) { 5557 if (pio_len < MIN_IOBASE_LEN) { 5558 ql4_printk(KERN_WARNING, ha, 5559 "Invalid PCI I/O region size\n"); 5560 pio = 0; 5561 } 5562 } else { 5563 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5564 pio = 0; 5565 } 5566 5567 /* Use MMIO operations for all accesses. */ 5568 mmio = pci_resource_start(ha->pdev, 1); 5569 mmio_len = pci_resource_len(ha->pdev, 1); 5570 mmio_flags = pci_resource_flags(ha->pdev, 1); 5571 5572 if (!(mmio_flags & IORESOURCE_MEM)) { 5573 ql4_printk(KERN_ERR, ha, 5574 "region #0 not an MMIO resource, aborting\n"); 5575 5576 goto iospace_error_exit; 5577 } 5578 5579 if (mmio_len < MIN_IOBASE_LEN) { 5580 ql4_printk(KERN_ERR, ha, 5581 "Invalid PCI mem region size, aborting\n"); 5582 goto iospace_error_exit; 5583 } 5584 5585 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5586 ql4_printk(KERN_WARNING, ha, 5587 "Failed to reserve PIO/MMIO regions\n"); 5588 5589 goto iospace_error_exit; 5590 } 5591 5592 ha->pio_address = pio; 5593 ha->pio_length = pio_len; 5594 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5595 if (!ha->reg) { 5596 ql4_printk(KERN_ERR, ha, 5597 "cannot remap MMIO, aborting\n"); 5598 5599 goto iospace_error_exit; 5600 } 5601 5602 return 0; 5603 5604 iospace_error_exit: 5605 return -ENOMEM; 5606 } 5607 5608 static struct isp_operations qla4xxx_isp_ops = { 5609 .iospace_config = qla4xxx_iospace_config, 5610 .pci_config = qla4xxx_pci_config, 5611 .disable_intrs = qla4xxx_disable_intrs, 5612 .enable_intrs = qla4xxx_enable_intrs, 5613 .start_firmware = qla4xxx_start_firmware, 5614 .intr_handler = qla4xxx_intr_handler, 5615 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5616 .reset_chip = qla4xxx_soft_reset, 5617 .reset_firmware = qla4xxx_hw_reset, 5618 .queue_iocb = qla4xxx_queue_iocb, 5619 .complete_iocb = qla4xxx_complete_iocb, 5620 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5621 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5622 .get_sys_info = qla4xxx_get_sys_info, 5623 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5624 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5625 }; 5626 5627 static struct isp_operations qla4_82xx_isp_ops = { 5628 .iospace_config = qla4_8xxx_iospace_config, 5629 .pci_config = qla4_8xxx_pci_config, 5630 .disable_intrs = qla4_82xx_disable_intrs, 5631 .enable_intrs = qla4_82xx_enable_intrs, 5632 .start_firmware = qla4_8xxx_load_risc, 5633 .restart_firmware = qla4_82xx_try_start_fw, 5634 .intr_handler = qla4_82xx_intr_handler, 5635 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5636 .need_reset = qla4_8xxx_need_reset, 5637 .reset_chip = qla4_82xx_isp_reset, 5638 .reset_firmware = qla4_8xxx_stop_firmware, 5639 .queue_iocb = qla4_82xx_queue_iocb, 5640 .complete_iocb = qla4_82xx_complete_iocb, 5641 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5642 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5643 .get_sys_info = qla4_8xxx_get_sys_info, 5644 .rd_reg_direct = qla4_82xx_rd_32, 5645 .wr_reg_direct = qla4_82xx_wr_32, 5646 .rd_reg_indirect = qla4_82xx_md_rd_32, 5647 .wr_reg_indirect = qla4_82xx_md_wr_32, 5648 .idc_lock = qla4_82xx_idc_lock, 5649 .idc_unlock = qla4_82xx_idc_unlock, 5650 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5651 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5652 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5653 }; 5654 5655 static struct isp_operations qla4_83xx_isp_ops = { 5656 .iospace_config = qla4_8xxx_iospace_config, 5657 .pci_config = qla4_8xxx_pci_config, 5658 .disable_intrs = qla4_83xx_disable_intrs, 5659 .enable_intrs = qla4_83xx_enable_intrs, 5660 .start_firmware = qla4_8xxx_load_risc, 5661 .restart_firmware = qla4_83xx_start_firmware, 5662 .intr_handler = qla4_83xx_intr_handler, 5663 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5664 .need_reset = qla4_8xxx_need_reset, 5665 .reset_chip = qla4_83xx_isp_reset, 5666 .reset_firmware = qla4_8xxx_stop_firmware, 5667 .queue_iocb = qla4_83xx_queue_iocb, 5668 .complete_iocb = qla4_83xx_complete_iocb, 5669 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5670 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5671 .get_sys_info = qla4_8xxx_get_sys_info, 5672 .rd_reg_direct = qla4_83xx_rd_reg, 5673 .wr_reg_direct = qla4_83xx_wr_reg, 5674 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5675 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5676 .idc_lock = qla4_83xx_drv_lock, 5677 .idc_unlock = qla4_83xx_drv_unlock, 5678 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5679 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5680 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5681 }; 5682 5683 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5684 { 5685 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5686 } 5687 5688 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5689 { 5690 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5691 } 5692 5693 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5694 { 5695 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5696 } 5697 5698 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5699 { 5700 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5701 } 5702 5703 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5704 { 5705 struct scsi_qla_host *ha = data; 5706 char *str = buf; 5707 int rc; 5708 5709 switch (type) { 5710 case ISCSI_BOOT_ETH_FLAGS: 5711 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5712 break; 5713 case ISCSI_BOOT_ETH_INDEX: 5714 rc = sprintf(str, "0\n"); 5715 break; 5716 case ISCSI_BOOT_ETH_MAC: 5717 rc = sysfs_format_mac(str, ha->my_mac, 5718 MAC_ADDR_LEN); 5719 break; 5720 default: 5721 rc = -ENOSYS; 5722 break; 5723 } 5724 return rc; 5725 } 5726 5727 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5728 { 5729 int rc; 5730 5731 switch (type) { 5732 case ISCSI_BOOT_ETH_FLAGS: 5733 case ISCSI_BOOT_ETH_MAC: 5734 case ISCSI_BOOT_ETH_INDEX: 5735 rc = S_IRUGO; 5736 break; 5737 default: 5738 rc = 0; 5739 break; 5740 } 5741 return rc; 5742 } 5743 5744 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5745 { 5746 struct scsi_qla_host *ha = data; 5747 char *str = buf; 5748 int rc; 5749 5750 switch (type) { 5751 case ISCSI_BOOT_INI_INITIATOR_NAME: 5752 rc = sprintf(str, "%s\n", ha->name_string); 5753 break; 5754 default: 5755 rc = -ENOSYS; 5756 break; 5757 } 5758 return rc; 5759 } 5760 5761 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5762 { 5763 int rc; 5764 5765 switch (type) { 5766 case ISCSI_BOOT_INI_INITIATOR_NAME: 5767 rc = S_IRUGO; 5768 break; 5769 default: 5770 rc = 0; 5771 break; 5772 } 5773 return rc; 5774 } 5775 5776 static ssize_t 5777 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5778 char *buf) 5779 { 5780 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5781 char *str = buf; 5782 int rc; 5783 5784 switch (type) { 5785 case ISCSI_BOOT_TGT_NAME: 5786 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5787 break; 5788 case ISCSI_BOOT_TGT_IP_ADDR: 5789 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5790 rc = sprintf(buf, "%pI4\n", 5791 &boot_conn->dest_ipaddr.ip_address); 5792 else 5793 rc = sprintf(str, "%pI6\n", 5794 &boot_conn->dest_ipaddr.ip_address); 5795 break; 5796 case ISCSI_BOOT_TGT_PORT: 5797 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5798 break; 5799 case ISCSI_BOOT_TGT_CHAP_NAME: 5800 rc = sprintf(str, "%.*s\n", 5801 boot_conn->chap.target_chap_name_length, 5802 (char *)&boot_conn->chap.target_chap_name); 5803 break; 5804 case ISCSI_BOOT_TGT_CHAP_SECRET: 5805 rc = sprintf(str, "%.*s\n", 5806 boot_conn->chap.target_secret_length, 5807 (char *)&boot_conn->chap.target_secret); 5808 break; 5809 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5810 rc = sprintf(str, "%.*s\n", 5811 boot_conn->chap.intr_chap_name_length, 5812 (char *)&boot_conn->chap.intr_chap_name); 5813 break; 5814 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5815 rc = sprintf(str, "%.*s\n", 5816 boot_conn->chap.intr_secret_length, 5817 (char *)&boot_conn->chap.intr_secret); 5818 break; 5819 case ISCSI_BOOT_TGT_FLAGS: 5820 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5821 break; 5822 case ISCSI_BOOT_TGT_NIC_ASSOC: 5823 rc = sprintf(str, "0\n"); 5824 break; 5825 default: 5826 rc = -ENOSYS; 5827 break; 5828 } 5829 return rc; 5830 } 5831 5832 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 5833 { 5834 struct scsi_qla_host *ha = data; 5835 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 5836 5837 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5838 } 5839 5840 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5841 { 5842 struct scsi_qla_host *ha = data; 5843 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5844 5845 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5846 } 5847 5848 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5849 { 5850 int rc; 5851 5852 switch (type) { 5853 case ISCSI_BOOT_TGT_NAME: 5854 case ISCSI_BOOT_TGT_IP_ADDR: 5855 case ISCSI_BOOT_TGT_PORT: 5856 case ISCSI_BOOT_TGT_CHAP_NAME: 5857 case ISCSI_BOOT_TGT_CHAP_SECRET: 5858 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5859 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5860 case ISCSI_BOOT_TGT_NIC_ASSOC: 5861 case ISCSI_BOOT_TGT_FLAGS: 5862 rc = S_IRUGO; 5863 break; 5864 default: 5865 rc = 0; 5866 break; 5867 } 5868 return rc; 5869 } 5870 5871 static void qla4xxx_boot_release(void *data) 5872 { 5873 struct scsi_qla_host *ha = data; 5874 5875 scsi_host_put(ha->host); 5876 } 5877 5878 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5879 { 5880 dma_addr_t buf_dma; 5881 uint32_t addr, pri_addr, sec_addr; 5882 uint32_t offset; 5883 uint16_t func_num; 5884 uint8_t val; 5885 uint8_t *buf = NULL; 5886 size_t size = 13 * sizeof(uint8_t); 5887 int ret = QLA_SUCCESS; 5888 5889 func_num = PCI_FUNC(ha->pdev->devfn); 5890 5891 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5892 __func__, ha->pdev->device, func_num); 5893 5894 if (is_qla40XX(ha)) { 5895 if (func_num == 1) { 5896 addr = NVRAM_PORT0_BOOT_MODE; 5897 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5898 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5899 } else if (func_num == 3) { 5900 addr = NVRAM_PORT1_BOOT_MODE; 5901 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5902 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5903 } else { 5904 ret = QLA_ERROR; 5905 goto exit_boot_info; 5906 } 5907 5908 /* Check Boot Mode */ 5909 val = rd_nvram_byte(ha, addr); 5910 if (!(val & 0x07)) { 5911 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5912 "options : 0x%x\n", __func__, val)); 5913 ret = QLA_ERROR; 5914 goto exit_boot_info; 5915 } 5916 5917 /* get primary valid target index */ 5918 val = rd_nvram_byte(ha, pri_addr); 5919 if (val & BIT_7) 5920 ddb_index[0] = (val & 0x7f); 5921 5922 /* get secondary valid target index */ 5923 val = rd_nvram_byte(ha, sec_addr); 5924 if (val & BIT_7) 5925 ddb_index[1] = (val & 0x7f); 5926 5927 } else if (is_qla80XX(ha)) { 5928 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5929 &buf_dma, GFP_KERNEL); 5930 if (!buf) { 5931 DEBUG2(ql4_printk(KERN_ERR, ha, 5932 "%s: Unable to allocate dma buffer\n", 5933 __func__)); 5934 ret = QLA_ERROR; 5935 goto exit_boot_info; 5936 } 5937 5938 if (ha->port_num == 0) 5939 offset = BOOT_PARAM_OFFSET_PORT0; 5940 else if (ha->port_num == 1) 5941 offset = BOOT_PARAM_OFFSET_PORT1; 5942 else { 5943 ret = QLA_ERROR; 5944 goto exit_boot_info_free; 5945 } 5946 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5947 offset; 5948 if (qla4xxx_get_flash(ha, buf_dma, addr, 5949 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5950 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5951 " failed\n", ha->host_no, __func__)); 5952 ret = QLA_ERROR; 5953 goto exit_boot_info_free; 5954 } 5955 /* Check Boot Mode */ 5956 if (!(buf[1] & 0x07)) { 5957 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5958 " : 0x%x\n", buf[1])); 5959 ret = QLA_ERROR; 5960 goto exit_boot_info_free; 5961 } 5962 5963 /* get primary valid target index */ 5964 if (buf[2] & BIT_7) 5965 ddb_index[0] = buf[2] & 0x7f; 5966 5967 /* get secondary valid target index */ 5968 if (buf[11] & BIT_7) 5969 ddb_index[1] = buf[11] & 0x7f; 5970 } else { 5971 ret = QLA_ERROR; 5972 goto exit_boot_info; 5973 } 5974 5975 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 5976 " target ID %d\n", __func__, ddb_index[0], 5977 ddb_index[1])); 5978 5979 exit_boot_info_free: 5980 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 5981 exit_boot_info: 5982 ha->pri_ddb_idx = ddb_index[0]; 5983 ha->sec_ddb_idx = ddb_index[1]; 5984 return ret; 5985 } 5986 5987 /** 5988 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 5989 * @ha: pointer to adapter structure 5990 * @username: CHAP username to be returned 5991 * @password: CHAP password to be returned 5992 * 5993 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 5994 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 5995 * So from the CHAP cache find the first BIDI CHAP entry and set it 5996 * to the boot record in sysfs. 5997 **/ 5998 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 5999 char *password) 6000 { 6001 int i, ret = -EINVAL; 6002 int max_chap_entries = 0; 6003 struct ql4_chap_table *chap_table; 6004 6005 if (is_qla80XX(ha)) 6006 max_chap_entries = (ha->hw.flt_chap_size / 2) / 6007 sizeof(struct ql4_chap_table); 6008 else 6009 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 6010 6011 if (!ha->chap_list) { 6012 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 6013 return ret; 6014 } 6015 6016 mutex_lock(&ha->chap_sem); 6017 for (i = 0; i < max_chap_entries; i++) { 6018 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 6019 if (chap_table->cookie != 6020 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 6021 continue; 6022 } 6023 6024 if (chap_table->flags & BIT_7) /* local */ 6025 continue; 6026 6027 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6028 continue; 6029 6030 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6031 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6032 ret = 0; 6033 break; 6034 } 6035 mutex_unlock(&ha->chap_sem); 6036 6037 return ret; 6038 } 6039 6040 6041 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6042 struct ql4_boot_session_info *boot_sess, 6043 uint16_t ddb_index) 6044 { 6045 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6046 struct dev_db_entry *fw_ddb_entry; 6047 dma_addr_t fw_ddb_entry_dma; 6048 uint16_t idx; 6049 uint16_t options; 6050 int ret = QLA_SUCCESS; 6051 6052 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6053 &fw_ddb_entry_dma, GFP_KERNEL); 6054 if (!fw_ddb_entry) { 6055 DEBUG2(ql4_printk(KERN_ERR, ha, 6056 "%s: Unable to allocate dma buffer.\n", 6057 __func__)); 6058 ret = QLA_ERROR; 6059 return ret; 6060 } 6061 6062 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6063 fw_ddb_entry_dma, ddb_index)) { 6064 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6065 "index [%d]\n", __func__, ddb_index)); 6066 ret = QLA_ERROR; 6067 goto exit_boot_target; 6068 } 6069 6070 /* Update target name and IP from DDB */ 6071 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6072 min(sizeof(boot_sess->target_name), 6073 sizeof(fw_ddb_entry->iscsi_name))); 6074 6075 options = le16_to_cpu(fw_ddb_entry->options); 6076 if (options & DDB_OPT_IPV6_DEVICE) { 6077 memcpy(&boot_conn->dest_ipaddr.ip_address, 6078 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6079 } else { 6080 boot_conn->dest_ipaddr.ip_type = 0x1; 6081 memcpy(&boot_conn->dest_ipaddr.ip_address, 6082 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6083 } 6084 6085 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6086 6087 /* update chap information */ 6088 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6089 6090 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6091 6092 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6093 6094 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6095 target_chap_name, 6096 (char *)&boot_conn->chap.target_secret, 6097 idx); 6098 if (ret) { 6099 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6100 ret = QLA_ERROR; 6101 goto exit_boot_target; 6102 } 6103 6104 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6105 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6106 } 6107 6108 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6109 6110 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6111 6112 ret = qla4xxx_get_bidi_chap(ha, 6113 (char *)&boot_conn->chap.intr_chap_name, 6114 (char *)&boot_conn->chap.intr_secret); 6115 6116 if (ret) { 6117 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6118 ret = QLA_ERROR; 6119 goto exit_boot_target; 6120 } 6121 6122 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6123 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6124 } 6125 6126 exit_boot_target: 6127 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6128 fw_ddb_entry, fw_ddb_entry_dma); 6129 return ret; 6130 } 6131 6132 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6133 { 6134 uint16_t ddb_index[2]; 6135 int ret = QLA_ERROR; 6136 int rval; 6137 6138 memset(ddb_index, 0, sizeof(ddb_index)); 6139 ddb_index[0] = 0xffff; 6140 ddb_index[1] = 0xffff; 6141 ret = get_fw_boot_info(ha, ddb_index); 6142 if (ret != QLA_SUCCESS) { 6143 DEBUG2(ql4_printk(KERN_INFO, ha, 6144 "%s: No boot target configured.\n", __func__)); 6145 return ret; 6146 } 6147 6148 if (ql4xdisablesysfsboot) 6149 return QLA_SUCCESS; 6150 6151 if (ddb_index[0] == 0xffff) 6152 goto sec_target; 6153 6154 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6155 ddb_index[0]); 6156 if (rval != QLA_SUCCESS) { 6157 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6158 "configured\n", __func__)); 6159 } else 6160 ret = QLA_SUCCESS; 6161 6162 sec_target: 6163 if (ddb_index[1] == 0xffff) 6164 goto exit_get_boot_info; 6165 6166 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6167 ddb_index[1]); 6168 if (rval != QLA_SUCCESS) { 6169 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6170 " configured\n", __func__)); 6171 } else 6172 ret = QLA_SUCCESS; 6173 6174 exit_get_boot_info: 6175 return ret; 6176 } 6177 6178 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6179 { 6180 struct iscsi_boot_kobj *boot_kobj; 6181 6182 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6183 return QLA_ERROR; 6184 6185 if (ql4xdisablesysfsboot) { 6186 ql4_printk(KERN_INFO, ha, 6187 "%s: syfsboot disabled - driver will trigger login " 6188 "and publish session for discovery .\n", __func__); 6189 return QLA_SUCCESS; 6190 } 6191 6192 6193 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6194 if (!ha->boot_kset) 6195 goto kset_free; 6196 6197 if (!scsi_host_get(ha->host)) 6198 goto kset_free; 6199 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6200 qla4xxx_show_boot_tgt_pri_info, 6201 qla4xxx_tgt_get_attr_visibility, 6202 qla4xxx_boot_release); 6203 if (!boot_kobj) 6204 goto put_host; 6205 6206 if (!scsi_host_get(ha->host)) 6207 goto kset_free; 6208 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6209 qla4xxx_show_boot_tgt_sec_info, 6210 qla4xxx_tgt_get_attr_visibility, 6211 qla4xxx_boot_release); 6212 if (!boot_kobj) 6213 goto put_host; 6214 6215 if (!scsi_host_get(ha->host)) 6216 goto kset_free; 6217 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6218 qla4xxx_show_boot_ini_info, 6219 qla4xxx_ini_get_attr_visibility, 6220 qla4xxx_boot_release); 6221 if (!boot_kobj) 6222 goto put_host; 6223 6224 if (!scsi_host_get(ha->host)) 6225 goto kset_free; 6226 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6227 qla4xxx_show_boot_eth_info, 6228 qla4xxx_eth_get_attr_visibility, 6229 qla4xxx_boot_release); 6230 if (!boot_kobj) 6231 goto put_host; 6232 6233 return QLA_SUCCESS; 6234 6235 put_host: 6236 scsi_host_put(ha->host); 6237 kset_free: 6238 iscsi_boot_destroy_kset(ha->boot_kset); 6239 return -ENOMEM; 6240 } 6241 6242 6243 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6244 struct ql4_tuple_ddb *tddb) 6245 { 6246 struct scsi_qla_host *ha; 6247 struct iscsi_cls_session *cls_sess; 6248 struct iscsi_cls_conn *cls_conn; 6249 struct iscsi_session *sess; 6250 struct iscsi_conn *conn; 6251 6252 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6253 ha = ddb_entry->ha; 6254 cls_sess = ddb_entry->sess; 6255 sess = cls_sess->dd_data; 6256 cls_conn = ddb_entry->conn; 6257 conn = cls_conn->dd_data; 6258 6259 tddb->tpgt = sess->tpgt; 6260 tddb->port = conn->persistent_port; 6261 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 6262 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 6263 } 6264 6265 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6266 struct ql4_tuple_ddb *tddb, 6267 uint8_t *flash_isid) 6268 { 6269 uint16_t options = 0; 6270 6271 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6272 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6273 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6274 6275 options = le16_to_cpu(fw_ddb_entry->options); 6276 if (options & DDB_OPT_IPV6_DEVICE) 6277 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6278 else 6279 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6280 6281 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6282 6283 if (flash_isid == NULL) 6284 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6285 sizeof(tddb->isid)); 6286 else 6287 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6288 } 6289 6290 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6291 struct ql4_tuple_ddb *old_tddb, 6292 struct ql4_tuple_ddb *new_tddb, 6293 uint8_t is_isid_compare) 6294 { 6295 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6296 return QLA_ERROR; 6297 6298 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6299 return QLA_ERROR; 6300 6301 if (old_tddb->port != new_tddb->port) 6302 return QLA_ERROR; 6303 6304 /* For multi sessions, driver generates the ISID, so do not compare 6305 * ISID in reset path since it would be a comparison between the 6306 * driver generated ISID and firmware generated ISID. This could 6307 * lead to adding duplicated DDBs in the list as driver generated 6308 * ISID would not match firmware generated ISID. 6309 */ 6310 if (is_isid_compare) { 6311 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x" 6312 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n", 6313 __func__, old_tddb->isid[5], old_tddb->isid[4], 6314 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1], 6315 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4], 6316 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1], 6317 new_tddb->isid[0])); 6318 6319 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6320 sizeof(old_tddb->isid))) 6321 return QLA_ERROR; 6322 } 6323 6324 DEBUG2(ql4_printk(KERN_INFO, ha, 6325 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6326 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6327 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6328 new_tddb->ip_addr, new_tddb->iscsi_name)); 6329 6330 return QLA_SUCCESS; 6331 } 6332 6333 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6334 struct dev_db_entry *fw_ddb_entry, 6335 uint32_t *index) 6336 { 6337 struct ddb_entry *ddb_entry; 6338 struct ql4_tuple_ddb *fw_tddb = NULL; 6339 struct ql4_tuple_ddb *tmp_tddb = NULL; 6340 int idx; 6341 int ret = QLA_ERROR; 6342 6343 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6344 if (!fw_tddb) { 6345 DEBUG2(ql4_printk(KERN_WARNING, ha, 6346 "Memory Allocation failed.\n")); 6347 ret = QLA_SUCCESS; 6348 goto exit_check; 6349 } 6350 6351 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6352 if (!tmp_tddb) { 6353 DEBUG2(ql4_printk(KERN_WARNING, ha, 6354 "Memory Allocation failed.\n")); 6355 ret = QLA_SUCCESS; 6356 goto exit_check; 6357 } 6358 6359 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6360 6361 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6362 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6363 if (ddb_entry == NULL) 6364 continue; 6365 6366 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6367 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6368 ret = QLA_SUCCESS; /* found */ 6369 if (index != NULL) 6370 *index = idx; 6371 goto exit_check; 6372 } 6373 } 6374 6375 exit_check: 6376 if (fw_tddb) 6377 vfree(fw_tddb); 6378 if (tmp_tddb) 6379 vfree(tmp_tddb); 6380 return ret; 6381 } 6382 6383 /** 6384 * qla4xxx_check_existing_isid - check if target with same isid exist 6385 * in target list 6386 * @list_nt: list of target 6387 * @isid: isid to check 6388 * 6389 * This routine return QLA_SUCCESS if target with same isid exist 6390 **/ 6391 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6392 { 6393 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6394 struct dev_db_entry *fw_ddb_entry; 6395 6396 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6397 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6398 6399 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6400 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6401 return QLA_SUCCESS; 6402 } 6403 } 6404 return QLA_ERROR; 6405 } 6406 6407 /** 6408 * qla4xxx_update_isid - compare ddbs and updated isid 6409 * @ha: Pointer to host adapter structure. 6410 * @list_nt: list of nt target 6411 * @fw_ddb_entry: firmware ddb entry 6412 * 6413 * This routine update isid if ddbs have same iqn, same isid and 6414 * different IP addr. 6415 * Return QLA_SUCCESS if isid is updated. 6416 **/ 6417 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6418 struct list_head *list_nt, 6419 struct dev_db_entry *fw_ddb_entry) 6420 { 6421 uint8_t base_value, i; 6422 6423 base_value = fw_ddb_entry->isid[1] & 0x1f; 6424 for (i = 0; i < 8; i++) { 6425 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6426 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6427 break; 6428 } 6429 6430 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6431 return QLA_ERROR; 6432 6433 return QLA_SUCCESS; 6434 } 6435 6436 /** 6437 * qla4xxx_should_update_isid - check if isid need to update 6438 * @ha: Pointer to host adapter structure. 6439 * @old_tddb: ddb tuple 6440 * @new_tddb: ddb tuple 6441 * 6442 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6443 * same isid 6444 **/ 6445 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6446 struct ql4_tuple_ddb *old_tddb, 6447 struct ql4_tuple_ddb *new_tddb) 6448 { 6449 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6450 /* Same ip */ 6451 if (old_tddb->port == new_tddb->port) 6452 return QLA_ERROR; 6453 } 6454 6455 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6456 /* different iqn */ 6457 return QLA_ERROR; 6458 6459 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6460 sizeof(old_tddb->isid))) 6461 /* different isid */ 6462 return QLA_ERROR; 6463 6464 return QLA_SUCCESS; 6465 } 6466 6467 /** 6468 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6469 * @ha: Pointer to host adapter structure. 6470 * @list_nt: list of nt target. 6471 * @fw_ddb_entry: firmware ddb entry. 6472 * 6473 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6474 * duplicate ddb in list_nt. 6475 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6476 * Note: This function also update isid of DDB if required. 6477 **/ 6478 6479 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6480 struct list_head *list_nt, 6481 struct dev_db_entry *fw_ddb_entry) 6482 { 6483 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6484 struct ql4_tuple_ddb *fw_tddb = NULL; 6485 struct ql4_tuple_ddb *tmp_tddb = NULL; 6486 int rval, ret = QLA_ERROR; 6487 6488 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6489 if (!fw_tddb) { 6490 DEBUG2(ql4_printk(KERN_WARNING, ha, 6491 "Memory Allocation failed.\n")); 6492 ret = QLA_SUCCESS; 6493 goto exit_check; 6494 } 6495 6496 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6497 if (!tmp_tddb) { 6498 DEBUG2(ql4_printk(KERN_WARNING, ha, 6499 "Memory Allocation failed.\n")); 6500 ret = QLA_SUCCESS; 6501 goto exit_check; 6502 } 6503 6504 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6505 6506 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6507 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6508 nt_ddb_idx->flash_isid); 6509 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6510 /* found duplicate ddb */ 6511 if (ret == QLA_SUCCESS) 6512 goto exit_check; 6513 } 6514 6515 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6516 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6517 6518 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6519 if (ret == QLA_SUCCESS) { 6520 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6521 if (rval == QLA_SUCCESS) 6522 ret = QLA_ERROR; 6523 else 6524 ret = QLA_SUCCESS; 6525 6526 goto exit_check; 6527 } 6528 } 6529 6530 exit_check: 6531 if (fw_tddb) 6532 vfree(fw_tddb); 6533 if (tmp_tddb) 6534 vfree(tmp_tddb); 6535 return ret; 6536 } 6537 6538 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6539 { 6540 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6541 6542 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6543 list_del_init(&ddb_idx->list); 6544 vfree(ddb_idx); 6545 } 6546 } 6547 6548 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6549 struct dev_db_entry *fw_ddb_entry) 6550 { 6551 struct iscsi_endpoint *ep; 6552 struct sockaddr_in *addr; 6553 struct sockaddr_in6 *addr6; 6554 struct sockaddr *t_addr; 6555 struct sockaddr_storage *dst_addr; 6556 char *ip; 6557 6558 /* TODO: need to destroy on unload iscsi_endpoint*/ 6559 dst_addr = vmalloc(sizeof(*dst_addr)); 6560 if (!dst_addr) 6561 return NULL; 6562 6563 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6564 t_addr = (struct sockaddr *)dst_addr; 6565 t_addr->sa_family = AF_INET6; 6566 addr6 = (struct sockaddr_in6 *)dst_addr; 6567 ip = (char *)&addr6->sin6_addr; 6568 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6569 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6570 6571 } else { 6572 t_addr = (struct sockaddr *)dst_addr; 6573 t_addr->sa_family = AF_INET; 6574 addr = (struct sockaddr_in *)dst_addr; 6575 ip = (char *)&addr->sin_addr; 6576 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6577 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6578 } 6579 6580 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6581 vfree(dst_addr); 6582 return ep; 6583 } 6584 6585 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6586 { 6587 if (ql4xdisablesysfsboot) 6588 return QLA_SUCCESS; 6589 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6590 return QLA_ERROR; 6591 return QLA_SUCCESS; 6592 } 6593 6594 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6595 struct ddb_entry *ddb_entry, 6596 uint16_t idx) 6597 { 6598 uint16_t def_timeout; 6599 6600 ddb_entry->ddb_type = FLASH_DDB; 6601 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6602 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6603 ddb_entry->ha = ha; 6604 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6605 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6606 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6607 6608 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6609 atomic_set(&ddb_entry->relogin_timer, 0); 6610 atomic_set(&ddb_entry->relogin_retry_count, 0); 6611 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6612 ddb_entry->default_relogin_timeout = 6613 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6614 def_timeout : LOGIN_TOV; 6615 ddb_entry->default_time2wait = 6616 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6617 6618 if (ql4xdisablesysfsboot && 6619 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6620 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6621 } 6622 6623 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6624 { 6625 uint32_t idx = 0; 6626 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6627 uint32_t sts[MBOX_REG_COUNT]; 6628 uint32_t ip_state; 6629 unsigned long wtime; 6630 int ret; 6631 6632 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6633 do { 6634 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6635 if (ip_idx[idx] == -1) 6636 continue; 6637 6638 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6639 6640 if (ret == QLA_ERROR) { 6641 ip_idx[idx] = -1; 6642 continue; 6643 } 6644 6645 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6646 6647 DEBUG2(ql4_printk(KERN_INFO, ha, 6648 "Waiting for IP state for idx = %d, state = 0x%x\n", 6649 ip_idx[idx], ip_state)); 6650 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6651 ip_state == IP_ADDRSTATE_INVALID || 6652 ip_state == IP_ADDRSTATE_PREFERRED || 6653 ip_state == IP_ADDRSTATE_DEPRICATED || 6654 ip_state == IP_ADDRSTATE_DISABLING) 6655 ip_idx[idx] = -1; 6656 } 6657 6658 /* Break if all IP states checked */ 6659 if ((ip_idx[0] == -1) && 6660 (ip_idx[1] == -1) && 6661 (ip_idx[2] == -1) && 6662 (ip_idx[3] == -1)) 6663 break; 6664 schedule_timeout_uninterruptible(HZ); 6665 } while (time_after(wtime, jiffies)); 6666 } 6667 6668 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6669 struct dev_db_entry *flash_ddb_entry) 6670 { 6671 uint16_t options = 0; 6672 size_t ip_len = IP_ADDR_LEN; 6673 6674 options = le16_to_cpu(fw_ddb_entry->options); 6675 if (options & DDB_OPT_IPV6_DEVICE) 6676 ip_len = IPv6_ADDR_LEN; 6677 6678 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6679 return QLA_ERROR; 6680 6681 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6682 sizeof(fw_ddb_entry->isid))) 6683 return QLA_ERROR; 6684 6685 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6686 sizeof(fw_ddb_entry->port))) 6687 return QLA_ERROR; 6688 6689 return QLA_SUCCESS; 6690 } 6691 6692 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6693 struct dev_db_entry *fw_ddb_entry, 6694 uint32_t fw_idx, uint32_t *flash_index) 6695 { 6696 struct dev_db_entry *flash_ddb_entry; 6697 dma_addr_t flash_ddb_entry_dma; 6698 uint32_t idx = 0; 6699 int max_ddbs; 6700 int ret = QLA_ERROR, status; 6701 6702 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6703 MAX_DEV_DB_ENTRIES; 6704 6705 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6706 &flash_ddb_entry_dma); 6707 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6708 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6709 goto exit_find_st_idx; 6710 } 6711 6712 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6713 flash_ddb_entry_dma, fw_idx); 6714 if (status == QLA_SUCCESS) { 6715 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6716 if (status == QLA_SUCCESS) { 6717 *flash_index = fw_idx; 6718 ret = QLA_SUCCESS; 6719 goto exit_find_st_idx; 6720 } 6721 } 6722 6723 for (idx = 0; idx < max_ddbs; idx++) { 6724 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6725 flash_ddb_entry_dma, idx); 6726 if (status == QLA_ERROR) 6727 continue; 6728 6729 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6730 if (status == QLA_SUCCESS) { 6731 *flash_index = idx; 6732 ret = QLA_SUCCESS; 6733 goto exit_find_st_idx; 6734 } 6735 } 6736 6737 if (idx == max_ddbs) 6738 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6739 fw_idx); 6740 6741 exit_find_st_idx: 6742 if (flash_ddb_entry) 6743 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6744 flash_ddb_entry_dma); 6745 6746 return ret; 6747 } 6748 6749 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6750 struct list_head *list_st) 6751 { 6752 struct qla_ddb_index *st_ddb_idx; 6753 int max_ddbs; 6754 int fw_idx_size; 6755 struct dev_db_entry *fw_ddb_entry; 6756 dma_addr_t fw_ddb_dma; 6757 int ret; 6758 uint32_t idx = 0, next_idx = 0; 6759 uint32_t state = 0, conn_err = 0; 6760 uint32_t flash_index = -1; 6761 uint16_t conn_id = 0; 6762 6763 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6764 &fw_ddb_dma); 6765 if (fw_ddb_entry == NULL) { 6766 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6767 goto exit_st_list; 6768 } 6769 6770 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6771 MAX_DEV_DB_ENTRIES; 6772 fw_idx_size = sizeof(struct qla_ddb_index); 6773 6774 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6775 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6776 NULL, &next_idx, &state, 6777 &conn_err, NULL, &conn_id); 6778 if (ret == QLA_ERROR) 6779 break; 6780 6781 /* Ignore DDB if invalid state (unassigned) */ 6782 if (state == DDB_DS_UNASSIGNED) 6783 goto continue_next_st; 6784 6785 /* Check if ST, add to the list_st */ 6786 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6787 goto continue_next_st; 6788 6789 st_ddb_idx = vzalloc(fw_idx_size); 6790 if (!st_ddb_idx) 6791 break; 6792 6793 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6794 &flash_index); 6795 if (ret == QLA_ERROR) { 6796 ql4_printk(KERN_ERR, ha, 6797 "No flash entry for ST at idx [%d]\n", idx); 6798 st_ddb_idx->flash_ddb_idx = idx; 6799 } else { 6800 ql4_printk(KERN_INFO, ha, 6801 "ST at idx [%d] is stored at flash [%d]\n", 6802 idx, flash_index); 6803 st_ddb_idx->flash_ddb_idx = flash_index; 6804 } 6805 6806 st_ddb_idx->fw_ddb_idx = idx; 6807 6808 list_add_tail(&st_ddb_idx->list, list_st); 6809 continue_next_st: 6810 if (next_idx == 0) 6811 break; 6812 } 6813 6814 exit_st_list: 6815 if (fw_ddb_entry) 6816 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6817 } 6818 6819 /** 6820 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6821 * @ha: pointer to adapter structure 6822 * @list_ddb: List from which failed ddb to be removed 6823 * 6824 * Iterate over the list of DDBs and find and remove DDBs that are either in 6825 * no connection active state or failed state 6826 **/ 6827 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6828 struct list_head *list_ddb) 6829 { 6830 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6831 uint32_t next_idx = 0; 6832 uint32_t state = 0, conn_err = 0; 6833 int ret; 6834 6835 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6836 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6837 NULL, 0, NULL, &next_idx, &state, 6838 &conn_err, NULL, NULL); 6839 if (ret == QLA_ERROR) 6840 continue; 6841 6842 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6843 state == DDB_DS_SESSION_FAILED) { 6844 list_del_init(&ddb_idx->list); 6845 vfree(ddb_idx); 6846 } 6847 } 6848 } 6849 6850 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6851 struct ddb_entry *ddb_entry, 6852 struct dev_db_entry *fw_ddb_entry) 6853 { 6854 struct iscsi_cls_session *cls_sess; 6855 struct iscsi_session *sess; 6856 uint32_t max_ddbs = 0; 6857 uint16_t ddb_link = -1; 6858 6859 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6860 MAX_DEV_DB_ENTRIES; 6861 6862 cls_sess = ddb_entry->sess; 6863 sess = cls_sess->dd_data; 6864 6865 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6866 if (ddb_link < max_ddbs) 6867 sess->discovery_parent_idx = ddb_link; 6868 else 6869 sess->discovery_parent_idx = DDB_NO_LINK; 6870 } 6871 6872 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6873 struct dev_db_entry *fw_ddb_entry, 6874 int is_reset, uint16_t idx) 6875 { 6876 struct iscsi_cls_session *cls_sess; 6877 struct iscsi_session *sess; 6878 struct iscsi_cls_conn *cls_conn; 6879 struct iscsi_endpoint *ep; 6880 uint16_t cmds_max = 32; 6881 uint16_t conn_id = 0; 6882 uint32_t initial_cmdsn = 0; 6883 int ret = QLA_SUCCESS; 6884 6885 struct ddb_entry *ddb_entry = NULL; 6886 6887 /* Create session object, with INVALID_ENTRY, 6888 * the targer_id would get set when we issue the login 6889 */ 6890 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6891 cmds_max, sizeof(struct ddb_entry), 6892 sizeof(struct ql4_task_data), 6893 initial_cmdsn, INVALID_ENTRY); 6894 if (!cls_sess) { 6895 ret = QLA_ERROR; 6896 goto exit_setup; 6897 } 6898 6899 /* 6900 * so calling module_put function to decrement the 6901 * reference count. 6902 **/ 6903 module_put(qla4xxx_iscsi_transport.owner); 6904 sess = cls_sess->dd_data; 6905 ddb_entry = sess->dd_data; 6906 ddb_entry->sess = cls_sess; 6907 6908 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6909 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6910 sizeof(struct dev_db_entry)); 6911 6912 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6913 6914 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6915 6916 if (!cls_conn) { 6917 ret = QLA_ERROR; 6918 goto exit_setup; 6919 } 6920 6921 ddb_entry->conn = cls_conn; 6922 6923 /* Setup ep, for displaying attributes in sysfs */ 6924 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6925 if (ep) { 6926 ep->conn = cls_conn; 6927 cls_conn->ep = ep; 6928 } else { 6929 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6930 ret = QLA_ERROR; 6931 goto exit_setup; 6932 } 6933 6934 /* Update sess/conn params */ 6935 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6936 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6937 6938 if (is_reset == RESET_ADAPTER) { 6939 iscsi_block_session(cls_sess); 6940 /* Use the relogin path to discover new devices 6941 * by short-circuting the logic of setting 6942 * timer to relogin - instead set the flags 6943 * to initiate login right away. 6944 */ 6945 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6946 set_bit(DF_RELOGIN, &ddb_entry->flags); 6947 } 6948 6949 exit_setup: 6950 return ret; 6951 } 6952 6953 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6954 struct list_head *list_ddb, 6955 struct dev_db_entry *fw_ddb_entry) 6956 { 6957 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6958 uint16_t ddb_link; 6959 6960 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6961 6962 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6963 if (ddb_idx->fw_ddb_idx == ddb_link) { 6964 DEBUG2(ql4_printk(KERN_INFO, ha, 6965 "Updating NT parent idx from [%d] to [%d]\n", 6966 ddb_link, ddb_idx->flash_ddb_idx)); 6967 fw_ddb_entry->ddb_link = 6968 cpu_to_le16(ddb_idx->flash_ddb_idx); 6969 return; 6970 } 6971 } 6972 } 6973 6974 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 6975 struct list_head *list_nt, 6976 struct list_head *list_st, 6977 int is_reset) 6978 { 6979 struct dev_db_entry *fw_ddb_entry; 6980 struct ddb_entry *ddb_entry = NULL; 6981 dma_addr_t fw_ddb_dma; 6982 int max_ddbs; 6983 int fw_idx_size; 6984 int ret; 6985 uint32_t idx = 0, next_idx = 0; 6986 uint32_t state = 0, conn_err = 0; 6987 uint32_t ddb_idx = -1; 6988 uint16_t conn_id = 0; 6989 uint16_t ddb_link = -1; 6990 struct qla_ddb_index *nt_ddb_idx; 6991 6992 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6993 &fw_ddb_dma); 6994 if (fw_ddb_entry == NULL) { 6995 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6996 goto exit_nt_list; 6997 } 6998 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6999 MAX_DEV_DB_ENTRIES; 7000 fw_idx_size = sizeof(struct qla_ddb_index); 7001 7002 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7003 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7004 NULL, &next_idx, &state, 7005 &conn_err, NULL, &conn_id); 7006 if (ret == QLA_ERROR) 7007 break; 7008 7009 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 7010 goto continue_next_nt; 7011 7012 /* Check if NT, then add to list it */ 7013 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 7014 goto continue_next_nt; 7015 7016 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 7017 if (ddb_link < max_ddbs) 7018 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 7019 7020 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 7021 state == DDB_DS_SESSION_FAILED) && 7022 (is_reset == INIT_ADAPTER)) 7023 goto continue_next_nt; 7024 7025 DEBUG2(ql4_printk(KERN_INFO, ha, 7026 "Adding DDB to session = 0x%x\n", idx)); 7027 7028 if (is_reset == INIT_ADAPTER) { 7029 nt_ddb_idx = vmalloc(fw_idx_size); 7030 if (!nt_ddb_idx) 7031 break; 7032 7033 nt_ddb_idx->fw_ddb_idx = idx; 7034 7035 /* Copy original isid as it may get updated in function 7036 * qla4xxx_update_isid(). We need original isid in 7037 * function qla4xxx_compare_tuple_ddb to find duplicate 7038 * target */ 7039 memcpy(&nt_ddb_idx->flash_isid[0], 7040 &fw_ddb_entry->isid[0], 7041 sizeof(nt_ddb_idx->flash_isid)); 7042 7043 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7044 fw_ddb_entry); 7045 if (ret == QLA_SUCCESS) { 7046 /* free nt_ddb_idx and do not add to list_nt */ 7047 vfree(nt_ddb_idx); 7048 goto continue_next_nt; 7049 } 7050 7051 /* Copy updated isid */ 7052 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7053 sizeof(struct dev_db_entry)); 7054 7055 list_add_tail(&nt_ddb_idx->list, list_nt); 7056 } else if (is_reset == RESET_ADAPTER) { 7057 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7058 &ddb_idx); 7059 if (ret == QLA_SUCCESS) { 7060 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7061 ddb_idx); 7062 if (ddb_entry != NULL) 7063 qla4xxx_update_sess_disc_idx(ha, 7064 ddb_entry, 7065 fw_ddb_entry); 7066 goto continue_next_nt; 7067 } 7068 } 7069 7070 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7071 if (ret == QLA_ERROR) 7072 goto exit_nt_list; 7073 7074 continue_next_nt: 7075 if (next_idx == 0) 7076 break; 7077 } 7078 7079 exit_nt_list: 7080 if (fw_ddb_entry) 7081 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7082 } 7083 7084 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7085 struct list_head *list_nt, 7086 uint16_t target_id) 7087 { 7088 struct dev_db_entry *fw_ddb_entry; 7089 dma_addr_t fw_ddb_dma; 7090 int max_ddbs; 7091 int fw_idx_size; 7092 int ret; 7093 uint32_t idx = 0, next_idx = 0; 7094 uint32_t state = 0, conn_err = 0; 7095 uint16_t conn_id = 0; 7096 struct qla_ddb_index *nt_ddb_idx; 7097 7098 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7099 &fw_ddb_dma); 7100 if (fw_ddb_entry == NULL) { 7101 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7102 goto exit_new_nt_list; 7103 } 7104 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7105 MAX_DEV_DB_ENTRIES; 7106 fw_idx_size = sizeof(struct qla_ddb_index); 7107 7108 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7109 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7110 NULL, &next_idx, &state, 7111 &conn_err, NULL, &conn_id); 7112 if (ret == QLA_ERROR) 7113 break; 7114 7115 /* Check if NT, then add it to list */ 7116 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7117 goto continue_next_new_nt; 7118 7119 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7120 goto continue_next_new_nt; 7121 7122 DEBUG2(ql4_printk(KERN_INFO, ha, 7123 "Adding DDB to session = 0x%x\n", idx)); 7124 7125 nt_ddb_idx = vmalloc(fw_idx_size); 7126 if (!nt_ddb_idx) 7127 break; 7128 7129 nt_ddb_idx->fw_ddb_idx = idx; 7130 7131 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7132 if (ret == QLA_SUCCESS) { 7133 /* free nt_ddb_idx and do not add to list_nt */ 7134 vfree(nt_ddb_idx); 7135 goto continue_next_new_nt; 7136 } 7137 7138 if (target_id < max_ddbs) 7139 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7140 7141 list_add_tail(&nt_ddb_idx->list, list_nt); 7142 7143 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7144 idx); 7145 if (ret == QLA_ERROR) 7146 goto exit_new_nt_list; 7147 7148 continue_next_new_nt: 7149 if (next_idx == 0) 7150 break; 7151 } 7152 7153 exit_new_nt_list: 7154 if (fw_ddb_entry) 7155 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7156 } 7157 7158 /** 7159 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7160 * @dev: dev associated with the sysfs entry 7161 * @data: pointer to flashnode session object 7162 * 7163 * Returns: 7164 * 1: if flashnode entry is non-persistent 7165 * 0: if flashnode entry is persistent 7166 **/ 7167 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) 7168 { 7169 struct iscsi_bus_flash_session *fnode_sess; 7170 7171 if (!iscsi_flashnode_bus_match(dev, NULL)) 7172 return 0; 7173 7174 fnode_sess = iscsi_dev_to_flash_session(dev); 7175 7176 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7177 } 7178 7179 /** 7180 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7181 * @ha: pointer to host 7182 * @fw_ddb_entry: flash ddb data 7183 * @idx: target index 7184 * @user: if set then this call is made from userland else from kernel 7185 * 7186 * Returns: 7187 * On sucess: QLA_SUCCESS 7188 * On failure: QLA_ERROR 7189 * 7190 * This create separate sysfs entries for session and connection attributes of 7191 * the given fw ddb entry. 7192 * If this is invoked as a result of a userspace call then the entry is marked 7193 * as nonpersistent using flash_state field. 7194 **/ 7195 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7196 struct dev_db_entry *fw_ddb_entry, 7197 uint16_t *idx, int user) 7198 { 7199 struct iscsi_bus_flash_session *fnode_sess = NULL; 7200 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7201 int rc = QLA_ERROR; 7202 7203 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7204 &qla4xxx_iscsi_transport, 0); 7205 if (!fnode_sess) { 7206 ql4_printk(KERN_ERR, ha, 7207 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7208 __func__, *idx, ha->host_no); 7209 goto exit_tgt_create; 7210 } 7211 7212 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7213 &qla4xxx_iscsi_transport, 0); 7214 if (!fnode_conn) { 7215 ql4_printk(KERN_ERR, ha, 7216 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7217 __func__, *idx, ha->host_no); 7218 goto free_sess; 7219 } 7220 7221 if (user) { 7222 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7223 } else { 7224 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7225 7226 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7227 fnode_sess->is_boot_target = 1; 7228 else 7229 fnode_sess->is_boot_target = 0; 7230 } 7231 7232 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7233 fw_ddb_entry); 7234 7235 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7236 __func__, fnode_sess->dev.kobj.name); 7237 7238 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7239 __func__, fnode_conn->dev.kobj.name); 7240 7241 return QLA_SUCCESS; 7242 7243 free_sess: 7244 iscsi_destroy_flashnode_sess(fnode_sess); 7245 7246 exit_tgt_create: 7247 return QLA_ERROR; 7248 } 7249 7250 /** 7251 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7252 * @shost: pointer to host 7253 * @buf: type of ddb entry (ipv4/ipv6) 7254 * @len: length of buf 7255 * 7256 * This creates new ddb entry in the flash by finding first free index and 7257 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7258 **/ 7259 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7260 int len) 7261 { 7262 struct scsi_qla_host *ha = to_qla_host(shost); 7263 struct dev_db_entry *fw_ddb_entry = NULL; 7264 dma_addr_t fw_ddb_entry_dma; 7265 struct device *dev; 7266 uint16_t idx = 0; 7267 uint16_t max_ddbs = 0; 7268 uint32_t options = 0; 7269 uint32_t rval = QLA_ERROR; 7270 7271 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7272 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7273 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7274 __func__)); 7275 goto exit_ddb_add; 7276 } 7277 7278 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7279 MAX_DEV_DB_ENTRIES; 7280 7281 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7282 &fw_ddb_entry_dma, GFP_KERNEL); 7283 if (!fw_ddb_entry) { 7284 DEBUG2(ql4_printk(KERN_ERR, ha, 7285 "%s: Unable to allocate dma buffer\n", 7286 __func__)); 7287 goto exit_ddb_add; 7288 } 7289 7290 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7291 qla4xxx_sysfs_ddb_is_non_persistent); 7292 if (dev) { 7293 ql4_printk(KERN_ERR, ha, 7294 "%s: A non-persistent entry %s found\n", 7295 __func__, dev->kobj.name); 7296 put_device(dev); 7297 goto exit_ddb_add; 7298 } 7299 7300 /* Index 0 and 1 are reserved for boot target entries */ 7301 for (idx = 2; idx < max_ddbs; idx++) { 7302 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7303 fw_ddb_entry_dma, idx)) 7304 break; 7305 } 7306 7307 if (idx == max_ddbs) 7308 goto exit_ddb_add; 7309 7310 if (!strncasecmp("ipv6", buf, 4)) 7311 options |= IPV6_DEFAULT_DDB_ENTRY; 7312 7313 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7314 if (rval == QLA_ERROR) 7315 goto exit_ddb_add; 7316 7317 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7318 7319 exit_ddb_add: 7320 if (fw_ddb_entry) 7321 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7322 fw_ddb_entry, fw_ddb_entry_dma); 7323 if (rval == QLA_SUCCESS) 7324 return idx; 7325 else 7326 return -EIO; 7327 } 7328 7329 /** 7330 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7331 * @fnode_sess: pointer to session attrs of flash ddb entry 7332 * @fnode_conn: pointer to connection attrs of flash ddb entry 7333 * 7334 * This writes the contents of target ddb buffer to Flash with a valid cookie 7335 * value in order to make the ddb entry persistent. 7336 **/ 7337 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7338 struct iscsi_bus_flash_conn *fnode_conn) 7339 { 7340 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7341 struct scsi_qla_host *ha = to_qla_host(shost); 7342 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7343 struct dev_db_entry *fw_ddb_entry = NULL; 7344 dma_addr_t fw_ddb_entry_dma; 7345 uint32_t options = 0; 7346 int rval = 0; 7347 7348 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7349 &fw_ddb_entry_dma, GFP_KERNEL); 7350 if (!fw_ddb_entry) { 7351 DEBUG2(ql4_printk(KERN_ERR, ha, 7352 "%s: Unable to allocate dma buffer\n", 7353 __func__)); 7354 rval = -ENOMEM; 7355 goto exit_ddb_apply; 7356 } 7357 7358 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7359 options |= IPV6_DEFAULT_DDB_ENTRY; 7360 7361 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7362 if (rval == QLA_ERROR) 7363 goto exit_ddb_apply; 7364 7365 dev_db_start_offset += (fnode_sess->target_id * 7366 sizeof(*fw_ddb_entry)); 7367 7368 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7369 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7370 7371 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7372 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7373 7374 if (rval == QLA_SUCCESS) { 7375 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7376 ql4_printk(KERN_INFO, ha, 7377 "%s: flash node %u of host %lu written to flash\n", 7378 __func__, fnode_sess->target_id, ha->host_no); 7379 } else { 7380 rval = -EIO; 7381 ql4_printk(KERN_ERR, ha, 7382 "%s: Error while writing flash node %u of host %lu to flash\n", 7383 __func__, fnode_sess->target_id, ha->host_no); 7384 } 7385 7386 exit_ddb_apply: 7387 if (fw_ddb_entry) 7388 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7389 fw_ddb_entry, fw_ddb_entry_dma); 7390 return rval; 7391 } 7392 7393 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7394 struct dev_db_entry *fw_ddb_entry, 7395 uint16_t idx) 7396 { 7397 struct dev_db_entry *ddb_entry = NULL; 7398 dma_addr_t ddb_entry_dma; 7399 unsigned long wtime; 7400 uint32_t mbx_sts = 0; 7401 uint32_t state = 0, conn_err = 0; 7402 uint16_t tmo = 0; 7403 int ret = 0; 7404 7405 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7406 &ddb_entry_dma, GFP_KERNEL); 7407 if (!ddb_entry) { 7408 DEBUG2(ql4_printk(KERN_ERR, ha, 7409 "%s: Unable to allocate dma buffer\n", 7410 __func__)); 7411 return QLA_ERROR; 7412 } 7413 7414 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7415 7416 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7417 if (ret != QLA_SUCCESS) { 7418 DEBUG2(ql4_printk(KERN_ERR, ha, 7419 "%s: Unable to set ddb entry for index %d\n", 7420 __func__, idx)); 7421 goto exit_ddb_conn_open; 7422 } 7423 7424 qla4xxx_conn_open(ha, idx); 7425 7426 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7427 tmo = ((ha->def_timeout > LOGIN_TOV) && 7428 (ha->def_timeout < LOGIN_TOV * 10) ? 7429 ha->def_timeout : LOGIN_TOV); 7430 7431 DEBUG2(ql4_printk(KERN_INFO, ha, 7432 "Default time to wait for login to ddb %d\n", tmo)); 7433 7434 wtime = jiffies + (HZ * tmo); 7435 do { 7436 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7437 NULL, &state, &conn_err, NULL, 7438 NULL); 7439 if (ret == QLA_ERROR) 7440 continue; 7441 7442 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7443 state == DDB_DS_SESSION_FAILED) 7444 break; 7445 7446 schedule_timeout_uninterruptible(HZ / 10); 7447 } while (time_after(wtime, jiffies)); 7448 7449 exit_ddb_conn_open: 7450 if (ddb_entry) 7451 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7452 ddb_entry, ddb_entry_dma); 7453 return ret; 7454 } 7455 7456 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7457 struct dev_db_entry *fw_ddb_entry, 7458 uint16_t target_id) 7459 { 7460 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7461 struct list_head list_nt; 7462 uint16_t ddb_index; 7463 int ret = 0; 7464 7465 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7466 ql4_printk(KERN_WARNING, ha, 7467 "%s: A discovery already in progress!\n", __func__); 7468 return QLA_ERROR; 7469 } 7470 7471 INIT_LIST_HEAD(&list_nt); 7472 7473 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7474 7475 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7476 if (ret == QLA_ERROR) 7477 goto exit_login_st_clr_bit; 7478 7479 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7480 if (ret == QLA_ERROR) 7481 goto exit_login_st; 7482 7483 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7484 7485 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7486 list_del_init(&ddb_idx->list); 7487 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7488 vfree(ddb_idx); 7489 } 7490 7491 exit_login_st: 7492 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7493 ql4_printk(KERN_ERR, ha, 7494 "Unable to clear DDB index = 0x%x\n", ddb_index); 7495 } 7496 7497 clear_bit(ddb_index, ha->ddb_idx_map); 7498 7499 exit_login_st_clr_bit: 7500 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7501 return ret; 7502 } 7503 7504 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7505 struct dev_db_entry *fw_ddb_entry, 7506 uint16_t idx) 7507 { 7508 int ret = QLA_ERROR; 7509 7510 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7511 if (ret != QLA_SUCCESS) 7512 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7513 idx); 7514 else 7515 ret = -EPERM; 7516 7517 return ret; 7518 } 7519 7520 /** 7521 * qla4xxx_sysfs_ddb_login - Login to the specified target 7522 * @fnode_sess: pointer to session attrs of flash ddb entry 7523 * @fnode_conn: pointer to connection attrs of flash ddb entry 7524 * 7525 * This logs in to the specified target 7526 **/ 7527 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7528 struct iscsi_bus_flash_conn *fnode_conn) 7529 { 7530 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7531 struct scsi_qla_host *ha = to_qla_host(shost); 7532 struct dev_db_entry *fw_ddb_entry = NULL; 7533 dma_addr_t fw_ddb_entry_dma; 7534 uint32_t options = 0; 7535 int ret = 0; 7536 7537 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7538 ql4_printk(KERN_ERR, ha, 7539 "%s: Target info is not persistent\n", __func__); 7540 ret = -EIO; 7541 goto exit_ddb_login; 7542 } 7543 7544 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7545 &fw_ddb_entry_dma, GFP_KERNEL); 7546 if (!fw_ddb_entry) { 7547 DEBUG2(ql4_printk(KERN_ERR, ha, 7548 "%s: Unable to allocate dma buffer\n", 7549 __func__)); 7550 ret = -ENOMEM; 7551 goto exit_ddb_login; 7552 } 7553 7554 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7555 options |= IPV6_DEFAULT_DDB_ENTRY; 7556 7557 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7558 if (ret == QLA_ERROR) 7559 goto exit_ddb_login; 7560 7561 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7562 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7563 7564 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7565 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7566 fnode_sess->target_id); 7567 else 7568 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7569 fnode_sess->target_id); 7570 7571 if (ret > 0) 7572 ret = -EIO; 7573 7574 exit_ddb_login: 7575 if (fw_ddb_entry) 7576 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7577 fw_ddb_entry, fw_ddb_entry_dma); 7578 return ret; 7579 } 7580 7581 /** 7582 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7583 * @cls_sess: pointer to session to be logged out 7584 * 7585 * This performs session log out from the specified target 7586 **/ 7587 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7588 { 7589 struct iscsi_session *sess; 7590 struct ddb_entry *ddb_entry = NULL; 7591 struct scsi_qla_host *ha; 7592 struct dev_db_entry *fw_ddb_entry = NULL; 7593 dma_addr_t fw_ddb_entry_dma; 7594 unsigned long flags; 7595 unsigned long wtime; 7596 uint32_t ddb_state; 7597 int options; 7598 int ret = 0; 7599 7600 sess = cls_sess->dd_data; 7601 ddb_entry = sess->dd_data; 7602 ha = ddb_entry->ha; 7603 7604 if (ddb_entry->ddb_type != FLASH_DDB) { 7605 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7606 __func__); 7607 ret = -ENXIO; 7608 goto exit_ddb_logout; 7609 } 7610 7611 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7612 ql4_printk(KERN_ERR, ha, 7613 "%s: Logout from boot target entry is not permitted.\n", 7614 __func__); 7615 ret = -EPERM; 7616 goto exit_ddb_logout; 7617 } 7618 7619 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7620 &fw_ddb_entry_dma, GFP_KERNEL); 7621 if (!fw_ddb_entry) { 7622 ql4_printk(KERN_ERR, ha, 7623 "%s: Unable to allocate dma buffer\n", __func__); 7624 ret = -ENOMEM; 7625 goto exit_ddb_logout; 7626 } 7627 7628 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7629 goto ddb_logout_init; 7630 7631 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7632 fw_ddb_entry, fw_ddb_entry_dma, 7633 NULL, NULL, &ddb_state, NULL, 7634 NULL, NULL); 7635 if (ret == QLA_ERROR) 7636 goto ddb_logout_init; 7637 7638 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7639 goto ddb_logout_init; 7640 7641 /* wait until next relogin is triggered using DF_RELOGIN and 7642 * clear DF_RELOGIN to avoid invocation of further relogin 7643 */ 7644 wtime = jiffies + (HZ * RELOGIN_TOV); 7645 do { 7646 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7647 goto ddb_logout_init; 7648 7649 schedule_timeout_uninterruptible(HZ); 7650 } while ((time_after(wtime, jiffies))); 7651 7652 ddb_logout_init: 7653 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7654 atomic_set(&ddb_entry->relogin_timer, 0); 7655 7656 options = LOGOUT_OPTION_CLOSE_SESSION; 7657 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7658 7659 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7660 wtime = jiffies + (HZ * LOGOUT_TOV); 7661 do { 7662 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7663 fw_ddb_entry, fw_ddb_entry_dma, 7664 NULL, NULL, &ddb_state, NULL, 7665 NULL, NULL); 7666 if (ret == QLA_ERROR) 7667 goto ddb_logout_clr_sess; 7668 7669 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7670 (ddb_state == DDB_DS_SESSION_FAILED)) 7671 goto ddb_logout_clr_sess; 7672 7673 schedule_timeout_uninterruptible(HZ); 7674 } while ((time_after(wtime, jiffies))); 7675 7676 ddb_logout_clr_sess: 7677 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7678 /* 7679 * we have decremented the reference count of the driver 7680 * when we setup the session to have the driver unload 7681 * to be seamless without actually destroying the 7682 * session 7683 **/ 7684 try_module_get(qla4xxx_iscsi_transport.owner); 7685 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7686 7687 spin_lock_irqsave(&ha->hardware_lock, flags); 7688 qla4xxx_free_ddb(ha, ddb_entry); 7689 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7690 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7691 7692 iscsi_session_teardown(ddb_entry->sess); 7693 7694 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7695 ret = QLA_SUCCESS; 7696 7697 exit_ddb_logout: 7698 if (fw_ddb_entry) 7699 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7700 fw_ddb_entry, fw_ddb_entry_dma); 7701 return ret; 7702 } 7703 7704 /** 7705 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7706 * @fnode_sess: pointer to session attrs of flash ddb entry 7707 * @fnode_conn: pointer to connection attrs of flash ddb entry 7708 * 7709 * This performs log out from the specified target 7710 **/ 7711 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7712 struct iscsi_bus_flash_conn *fnode_conn) 7713 { 7714 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7715 struct scsi_qla_host *ha = to_qla_host(shost); 7716 struct ql4_tuple_ddb *flash_tddb = NULL; 7717 struct ql4_tuple_ddb *tmp_tddb = NULL; 7718 struct dev_db_entry *fw_ddb_entry = NULL; 7719 struct ddb_entry *ddb_entry = NULL; 7720 dma_addr_t fw_ddb_dma; 7721 uint32_t next_idx = 0; 7722 uint32_t state = 0, conn_err = 0; 7723 uint16_t conn_id = 0; 7724 int idx, index; 7725 int status, ret = 0; 7726 7727 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7728 &fw_ddb_dma); 7729 if (fw_ddb_entry == NULL) { 7730 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7731 ret = -ENOMEM; 7732 goto exit_ddb_logout; 7733 } 7734 7735 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7736 if (!flash_tddb) { 7737 ql4_printk(KERN_WARNING, ha, 7738 "%s:Memory Allocation failed.\n", __func__); 7739 ret = -ENOMEM; 7740 goto exit_ddb_logout; 7741 } 7742 7743 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7744 if (!tmp_tddb) { 7745 ql4_printk(KERN_WARNING, ha, 7746 "%s:Memory Allocation failed.\n", __func__); 7747 ret = -ENOMEM; 7748 goto exit_ddb_logout; 7749 } 7750 7751 if (!fnode_sess->targetname) { 7752 ql4_printk(KERN_ERR, ha, 7753 "%s:Cannot logout from SendTarget entry\n", 7754 __func__); 7755 ret = -EPERM; 7756 goto exit_ddb_logout; 7757 } 7758 7759 if (fnode_sess->is_boot_target) { 7760 ql4_printk(KERN_ERR, ha, 7761 "%s: Logout from boot target entry is not permitted.\n", 7762 __func__); 7763 ret = -EPERM; 7764 goto exit_ddb_logout; 7765 } 7766 7767 strncpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7768 ISCSI_NAME_SIZE); 7769 7770 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7771 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7772 else 7773 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7774 7775 flash_tddb->tpgt = fnode_sess->tpgt; 7776 flash_tddb->port = fnode_conn->port; 7777 7778 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7779 7780 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7781 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7782 if (ddb_entry == NULL) 7783 continue; 7784 7785 if (ddb_entry->ddb_type != FLASH_DDB) 7786 continue; 7787 7788 index = ddb_entry->sess->target_id; 7789 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7790 fw_ddb_dma, NULL, &next_idx, 7791 &state, &conn_err, NULL, 7792 &conn_id); 7793 if (status == QLA_ERROR) { 7794 ret = -ENOMEM; 7795 break; 7796 } 7797 7798 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7799 7800 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7801 true); 7802 if (status == QLA_SUCCESS) { 7803 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7804 break; 7805 } 7806 } 7807 7808 if (idx == MAX_DDB_ENTRIES) 7809 ret = -ESRCH; 7810 7811 exit_ddb_logout: 7812 if (flash_tddb) 7813 vfree(flash_tddb); 7814 if (tmp_tddb) 7815 vfree(tmp_tddb); 7816 if (fw_ddb_entry) 7817 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7818 7819 return ret; 7820 } 7821 7822 static int 7823 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7824 int param, char *buf) 7825 { 7826 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7827 struct scsi_qla_host *ha = to_qla_host(shost); 7828 struct iscsi_bus_flash_conn *fnode_conn; 7829 struct ql4_chap_table chap_tbl; 7830 struct device *dev; 7831 int parent_type; 7832 int rc = 0; 7833 7834 dev = iscsi_find_flashnode_conn(fnode_sess); 7835 if (!dev) 7836 return -EIO; 7837 7838 fnode_conn = iscsi_dev_to_flash_conn(dev); 7839 7840 switch (param) { 7841 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7842 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7843 break; 7844 case ISCSI_FLASHNODE_PORTAL_TYPE: 7845 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7846 break; 7847 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7848 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7849 break; 7850 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7851 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7852 break; 7853 case ISCSI_FLASHNODE_ENTRY_EN: 7854 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7855 break; 7856 case ISCSI_FLASHNODE_HDR_DGST_EN: 7857 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7858 break; 7859 case ISCSI_FLASHNODE_DATA_DGST_EN: 7860 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7861 break; 7862 case ISCSI_FLASHNODE_IMM_DATA_EN: 7863 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7864 break; 7865 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7866 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7867 break; 7868 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7869 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7870 break; 7871 case ISCSI_FLASHNODE_PDU_INORDER: 7872 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7873 break; 7874 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7875 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7876 break; 7877 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7878 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7879 break; 7880 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7881 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7882 break; 7883 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7884 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7885 break; 7886 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7887 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7888 break; 7889 case ISCSI_FLASHNODE_ERL: 7890 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7891 break; 7892 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7893 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7894 break; 7895 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7896 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7897 break; 7898 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7899 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7900 break; 7901 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7902 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7903 break; 7904 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7905 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7906 break; 7907 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7908 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7909 break; 7910 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7911 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7912 break; 7913 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7914 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7915 break; 7916 case ISCSI_FLASHNODE_FIRST_BURST: 7917 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7918 break; 7919 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7920 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7921 break; 7922 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7923 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7924 break; 7925 case ISCSI_FLASHNODE_MAX_R2T: 7926 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7927 break; 7928 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7929 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7930 break; 7931 case ISCSI_FLASHNODE_ISID: 7932 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n", 7933 fnode_sess->isid[0], fnode_sess->isid[1], 7934 fnode_sess->isid[2], fnode_sess->isid[3], 7935 fnode_sess->isid[4], fnode_sess->isid[5]); 7936 break; 7937 case ISCSI_FLASHNODE_TSID: 7938 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7939 break; 7940 case ISCSI_FLASHNODE_PORT: 7941 rc = sprintf(buf, "%d\n", fnode_conn->port); 7942 break; 7943 case ISCSI_FLASHNODE_MAX_BURST: 7944 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7945 break; 7946 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7947 rc = sprintf(buf, "%u\n", 7948 fnode_sess->default_taskmgmt_timeout); 7949 break; 7950 case ISCSI_FLASHNODE_IPADDR: 7951 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7952 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7953 else 7954 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7955 break; 7956 case ISCSI_FLASHNODE_ALIAS: 7957 if (fnode_sess->targetalias) 7958 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7959 else 7960 rc = sprintf(buf, "\n"); 7961 break; 7962 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7963 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7964 rc = sprintf(buf, "%pI6\n", 7965 fnode_conn->redirect_ipaddr); 7966 else 7967 rc = sprintf(buf, "%pI4\n", 7968 fnode_conn->redirect_ipaddr); 7969 break; 7970 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7971 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7972 break; 7973 case ISCSI_FLASHNODE_LOCAL_PORT: 7974 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 7975 break; 7976 case ISCSI_FLASHNODE_IPV4_TOS: 7977 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 7978 break; 7979 case ISCSI_FLASHNODE_IPV6_TC: 7980 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7981 rc = sprintf(buf, "%u\n", 7982 fnode_conn->ipv6_traffic_class); 7983 else 7984 rc = sprintf(buf, "\n"); 7985 break; 7986 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 7987 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 7988 break; 7989 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 7990 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7991 rc = sprintf(buf, "%pI6\n", 7992 fnode_conn->link_local_ipv6_addr); 7993 else 7994 rc = sprintf(buf, "\n"); 7995 break; 7996 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 7997 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 7998 break; 7999 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 8000 if (fnode_sess->discovery_parent_type == DDB_ISNS) 8001 parent_type = ISCSI_DISC_PARENT_ISNS; 8002 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 8003 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8004 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 8005 parent_type = ISCSI_DISC_PARENT_SENDTGT; 8006 else 8007 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8008 8009 rc = sprintf(buf, "%s\n", 8010 iscsi_get_discovery_parent_name(parent_type)); 8011 break; 8012 case ISCSI_FLASHNODE_NAME: 8013 if (fnode_sess->targetname) 8014 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 8015 else 8016 rc = sprintf(buf, "\n"); 8017 break; 8018 case ISCSI_FLASHNODE_TPGT: 8019 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 8020 break; 8021 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8022 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 8023 break; 8024 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8025 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 8026 break; 8027 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8028 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8029 break; 8030 case ISCSI_FLASHNODE_USERNAME: 8031 if (fnode_sess->chap_auth_en) { 8032 qla4xxx_get_uni_chap_at_index(ha, 8033 chap_tbl.name, 8034 chap_tbl.secret, 8035 fnode_sess->chap_out_idx); 8036 rc = sprintf(buf, "%s\n", chap_tbl.name); 8037 } else { 8038 rc = sprintf(buf, "\n"); 8039 } 8040 break; 8041 case ISCSI_FLASHNODE_PASSWORD: 8042 if (fnode_sess->chap_auth_en) { 8043 qla4xxx_get_uni_chap_at_index(ha, 8044 chap_tbl.name, 8045 chap_tbl.secret, 8046 fnode_sess->chap_out_idx); 8047 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8048 } else { 8049 rc = sprintf(buf, "\n"); 8050 } 8051 break; 8052 case ISCSI_FLASHNODE_STATSN: 8053 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8054 break; 8055 case ISCSI_FLASHNODE_EXP_STATSN: 8056 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8057 break; 8058 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8059 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8060 break; 8061 default: 8062 rc = -ENOSYS; 8063 break; 8064 } 8065 8066 put_device(dev); 8067 return rc; 8068 } 8069 8070 /** 8071 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8072 * @fnode_sess: pointer to session attrs of flash ddb entry 8073 * @fnode_conn: pointer to connection attrs of flash ddb entry 8074 * @data: Parameters and their values to update 8075 * @len: len of data 8076 * 8077 * This sets the parameter of flash ddb entry and writes them to flash 8078 **/ 8079 static int 8080 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8081 struct iscsi_bus_flash_conn *fnode_conn, 8082 void *data, int len) 8083 { 8084 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8085 struct scsi_qla_host *ha = to_qla_host(shost); 8086 struct iscsi_flashnode_param_info *fnode_param; 8087 struct ql4_chap_table chap_tbl; 8088 struct nlattr *attr; 8089 uint16_t chap_out_idx = INVALID_ENTRY; 8090 int rc = QLA_ERROR; 8091 uint32_t rem = len; 8092 8093 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8094 nla_for_each_attr(attr, data, len, rem) { 8095 fnode_param = nla_data(attr); 8096 8097 switch (fnode_param->param) { 8098 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8099 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8100 break; 8101 case ISCSI_FLASHNODE_PORTAL_TYPE: 8102 memcpy(fnode_sess->portal_type, fnode_param->value, 8103 strlen(fnode_sess->portal_type)); 8104 break; 8105 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8106 fnode_sess->auto_snd_tgt_disable = 8107 fnode_param->value[0]; 8108 break; 8109 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8110 fnode_sess->discovery_sess = fnode_param->value[0]; 8111 break; 8112 case ISCSI_FLASHNODE_ENTRY_EN: 8113 fnode_sess->entry_state = fnode_param->value[0]; 8114 break; 8115 case ISCSI_FLASHNODE_HDR_DGST_EN: 8116 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8117 break; 8118 case ISCSI_FLASHNODE_DATA_DGST_EN: 8119 fnode_conn->datadgst_en = fnode_param->value[0]; 8120 break; 8121 case ISCSI_FLASHNODE_IMM_DATA_EN: 8122 fnode_sess->imm_data_en = fnode_param->value[0]; 8123 break; 8124 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8125 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8126 break; 8127 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8128 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8129 break; 8130 case ISCSI_FLASHNODE_PDU_INORDER: 8131 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8132 break; 8133 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8134 fnode_sess->chap_auth_en = fnode_param->value[0]; 8135 /* Invalidate chap index if chap auth is disabled */ 8136 if (!fnode_sess->chap_auth_en) 8137 fnode_sess->chap_out_idx = INVALID_ENTRY; 8138 8139 break; 8140 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8141 fnode_conn->snack_req_en = fnode_param->value[0]; 8142 break; 8143 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8144 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8145 break; 8146 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8147 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8148 break; 8149 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8150 fnode_sess->discovery_auth_optional = 8151 fnode_param->value[0]; 8152 break; 8153 case ISCSI_FLASHNODE_ERL: 8154 fnode_sess->erl = fnode_param->value[0]; 8155 break; 8156 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8157 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8158 break; 8159 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8160 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8161 break; 8162 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8163 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8164 break; 8165 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8166 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8167 break; 8168 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8169 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8170 break; 8171 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8172 fnode_conn->fragment_disable = fnode_param->value[0]; 8173 break; 8174 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8175 fnode_conn->max_recv_dlength = 8176 *(unsigned *)fnode_param->value; 8177 break; 8178 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8179 fnode_conn->max_xmit_dlength = 8180 *(unsigned *)fnode_param->value; 8181 break; 8182 case ISCSI_FLASHNODE_FIRST_BURST: 8183 fnode_sess->first_burst = 8184 *(unsigned *)fnode_param->value; 8185 break; 8186 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8187 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8188 break; 8189 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8190 fnode_sess->time2retain = 8191 *(uint16_t *)fnode_param->value; 8192 break; 8193 case ISCSI_FLASHNODE_MAX_R2T: 8194 fnode_sess->max_r2t = 8195 *(uint16_t *)fnode_param->value; 8196 break; 8197 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8198 fnode_conn->keepalive_timeout = 8199 *(uint16_t *)fnode_param->value; 8200 break; 8201 case ISCSI_FLASHNODE_ISID: 8202 memcpy(fnode_sess->isid, fnode_param->value, 8203 sizeof(fnode_sess->isid)); 8204 break; 8205 case ISCSI_FLASHNODE_TSID: 8206 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8207 break; 8208 case ISCSI_FLASHNODE_PORT: 8209 fnode_conn->port = *(uint16_t *)fnode_param->value; 8210 break; 8211 case ISCSI_FLASHNODE_MAX_BURST: 8212 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8213 break; 8214 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8215 fnode_sess->default_taskmgmt_timeout = 8216 *(uint16_t *)fnode_param->value; 8217 break; 8218 case ISCSI_FLASHNODE_IPADDR: 8219 memcpy(fnode_conn->ipaddress, fnode_param->value, 8220 IPv6_ADDR_LEN); 8221 break; 8222 case ISCSI_FLASHNODE_ALIAS: 8223 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8224 (char *)fnode_param->value); 8225 break; 8226 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8227 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8228 IPv6_ADDR_LEN); 8229 break; 8230 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8231 fnode_conn->max_segment_size = 8232 *(unsigned *)fnode_param->value; 8233 break; 8234 case ISCSI_FLASHNODE_LOCAL_PORT: 8235 fnode_conn->local_port = 8236 *(uint16_t *)fnode_param->value; 8237 break; 8238 case ISCSI_FLASHNODE_IPV4_TOS: 8239 fnode_conn->ipv4_tos = fnode_param->value[0]; 8240 break; 8241 case ISCSI_FLASHNODE_IPV6_TC: 8242 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8243 break; 8244 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8245 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8246 break; 8247 case ISCSI_FLASHNODE_NAME: 8248 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8249 (char *)fnode_param->value); 8250 break; 8251 case ISCSI_FLASHNODE_TPGT: 8252 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8253 break; 8254 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8255 memcpy(fnode_conn->link_local_ipv6_addr, 8256 fnode_param->value, IPv6_ADDR_LEN); 8257 break; 8258 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8259 fnode_sess->discovery_parent_idx = 8260 *(uint16_t *)fnode_param->value; 8261 break; 8262 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8263 fnode_conn->tcp_xmit_wsf = 8264 *(uint8_t *)fnode_param->value; 8265 break; 8266 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8267 fnode_conn->tcp_recv_wsf = 8268 *(uint8_t *)fnode_param->value; 8269 break; 8270 case ISCSI_FLASHNODE_STATSN: 8271 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8272 break; 8273 case ISCSI_FLASHNODE_EXP_STATSN: 8274 fnode_conn->exp_statsn = 8275 *(uint32_t *)fnode_param->value; 8276 break; 8277 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8278 chap_out_idx = *(uint16_t *)fnode_param->value; 8279 if (!qla4xxx_get_uni_chap_at_index(ha, 8280 chap_tbl.name, 8281 chap_tbl.secret, 8282 chap_out_idx)) { 8283 fnode_sess->chap_out_idx = chap_out_idx; 8284 /* Enable chap auth if chap index is valid */ 8285 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8286 } 8287 break; 8288 default: 8289 ql4_printk(KERN_ERR, ha, 8290 "%s: No such sysfs attribute\n", __func__); 8291 rc = -ENOSYS; 8292 goto exit_set_param; 8293 } 8294 } 8295 8296 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8297 8298 exit_set_param: 8299 return rc; 8300 } 8301 8302 /** 8303 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8304 * @fnode_sess: pointer to session attrs of flash ddb entry 8305 * 8306 * This invalidates the flash ddb entry at the given index 8307 **/ 8308 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8309 { 8310 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8311 struct scsi_qla_host *ha = to_qla_host(shost); 8312 uint32_t dev_db_start_offset; 8313 uint32_t dev_db_end_offset; 8314 struct dev_db_entry *fw_ddb_entry = NULL; 8315 dma_addr_t fw_ddb_entry_dma; 8316 uint16_t *ddb_cookie = NULL; 8317 size_t ddb_size = 0; 8318 void *pddb = NULL; 8319 int target_id; 8320 int rc = 0; 8321 8322 if (fnode_sess->is_boot_target) { 8323 rc = -EPERM; 8324 DEBUG2(ql4_printk(KERN_ERR, ha, 8325 "%s: Deletion of boot target entry is not permitted.\n", 8326 __func__)); 8327 goto exit_ddb_del; 8328 } 8329 8330 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8331 goto sysfs_ddb_del; 8332 8333 if (is_qla40XX(ha)) { 8334 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8335 dev_db_end_offset = FLASH_OFFSET_DB_END; 8336 dev_db_start_offset += (fnode_sess->target_id * 8337 sizeof(*fw_ddb_entry)); 8338 ddb_size = sizeof(*fw_ddb_entry); 8339 } else { 8340 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8341 (ha->hw.flt_region_ddb << 2); 8342 /* flt_ddb_size is DDB table size for both ports 8343 * so divide it by 2 to calculate the offset for second port 8344 */ 8345 if (ha->port_num == 1) 8346 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8347 8348 dev_db_end_offset = dev_db_start_offset + 8349 (ha->hw.flt_ddb_size / 2); 8350 8351 dev_db_start_offset += (fnode_sess->target_id * 8352 sizeof(*fw_ddb_entry)); 8353 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8354 8355 ddb_size = sizeof(*ddb_cookie); 8356 } 8357 8358 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8359 __func__, dev_db_start_offset, dev_db_end_offset)); 8360 8361 if (dev_db_start_offset > dev_db_end_offset) { 8362 rc = -EIO; 8363 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8364 __func__, fnode_sess->target_id)); 8365 goto exit_ddb_del; 8366 } 8367 8368 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8369 &fw_ddb_entry_dma, GFP_KERNEL); 8370 if (!pddb) { 8371 rc = -ENOMEM; 8372 DEBUG2(ql4_printk(KERN_ERR, ha, 8373 "%s: Unable to allocate dma buffer\n", 8374 __func__)); 8375 goto exit_ddb_del; 8376 } 8377 8378 if (is_qla40XX(ha)) { 8379 fw_ddb_entry = pddb; 8380 memset(fw_ddb_entry, 0, ddb_size); 8381 ddb_cookie = &fw_ddb_entry->cookie; 8382 } else { 8383 ddb_cookie = pddb; 8384 } 8385 8386 /* invalidate the cookie */ 8387 *ddb_cookie = 0xFFEE; 8388 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8389 ddb_size, FLASH_OPT_RMW_COMMIT); 8390 8391 sysfs_ddb_del: 8392 target_id = fnode_sess->target_id; 8393 iscsi_destroy_flashnode_sess(fnode_sess); 8394 ql4_printk(KERN_INFO, ha, 8395 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8396 __func__, target_id, ha->host_no); 8397 exit_ddb_del: 8398 if (pddb) 8399 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8400 fw_ddb_entry_dma); 8401 return rc; 8402 } 8403 8404 /** 8405 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8406 * @ha: pointer to adapter structure 8407 * 8408 * Export the firmware DDB for all send targets and normal targets to sysfs. 8409 **/ 8410 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8411 { 8412 struct dev_db_entry *fw_ddb_entry = NULL; 8413 dma_addr_t fw_ddb_entry_dma; 8414 uint16_t max_ddbs; 8415 uint16_t idx = 0; 8416 int ret = QLA_SUCCESS; 8417 8418 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8419 sizeof(*fw_ddb_entry), 8420 &fw_ddb_entry_dma, GFP_KERNEL); 8421 if (!fw_ddb_entry) { 8422 DEBUG2(ql4_printk(KERN_ERR, ha, 8423 "%s: Unable to allocate dma buffer\n", 8424 __func__)); 8425 return -ENOMEM; 8426 } 8427 8428 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8429 MAX_DEV_DB_ENTRIES; 8430 8431 for (idx = 0; idx < max_ddbs; idx++) { 8432 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8433 idx)) 8434 continue; 8435 8436 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8437 if (ret) { 8438 ret = -EIO; 8439 break; 8440 } 8441 } 8442 8443 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8444 fw_ddb_entry_dma); 8445 8446 return ret; 8447 } 8448 8449 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8450 { 8451 iscsi_destroy_all_flashnode(ha->host); 8452 } 8453 8454 /** 8455 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8456 * @ha: pointer to adapter structure 8457 * @is_reset: Is this init path or reset path 8458 * 8459 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8460 * using connection open, then create the list of normal targets (nt) 8461 * from firmware DDBs. Based on the list of nt setup session and connection 8462 * objects. 8463 **/ 8464 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8465 { 8466 uint16_t tmo = 0; 8467 struct list_head list_st, list_nt; 8468 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8469 unsigned long wtime; 8470 8471 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8472 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8473 ha->is_reset = is_reset; 8474 return; 8475 } 8476 8477 INIT_LIST_HEAD(&list_st); 8478 INIT_LIST_HEAD(&list_nt); 8479 8480 qla4xxx_build_st_list(ha, &list_st); 8481 8482 /* Before issuing conn open mbox, ensure all IPs states are configured 8483 * Note, conn open fails if IPs are not configured 8484 */ 8485 qla4xxx_wait_for_ip_configuration(ha); 8486 8487 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8488 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8489 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8490 } 8491 8492 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8493 tmo = ((ha->def_timeout > LOGIN_TOV) && 8494 (ha->def_timeout < LOGIN_TOV * 10) ? 8495 ha->def_timeout : LOGIN_TOV); 8496 8497 DEBUG2(ql4_printk(KERN_INFO, ha, 8498 "Default time to wait for build ddb %d\n", tmo)); 8499 8500 wtime = jiffies + (HZ * tmo); 8501 do { 8502 if (list_empty(&list_st)) 8503 break; 8504 8505 qla4xxx_remove_failed_ddb(ha, &list_st); 8506 schedule_timeout_uninterruptible(HZ / 10); 8507 } while (time_after(wtime, jiffies)); 8508 8509 8510 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8511 8512 qla4xxx_free_ddb_list(&list_st); 8513 qla4xxx_free_ddb_list(&list_nt); 8514 8515 qla4xxx_free_ddb_index(ha); 8516 } 8517 8518 /** 8519 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8520 * response. 8521 * @ha: pointer to adapter structure 8522 * 8523 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8524 * set in DDB and we will wait for login response of boot targets during 8525 * probe. 8526 **/ 8527 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8528 { 8529 struct ddb_entry *ddb_entry; 8530 struct dev_db_entry *fw_ddb_entry = NULL; 8531 dma_addr_t fw_ddb_entry_dma; 8532 unsigned long wtime; 8533 uint32_t ddb_state; 8534 int max_ddbs, idx, ret; 8535 8536 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8537 MAX_DEV_DB_ENTRIES; 8538 8539 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8540 &fw_ddb_entry_dma, GFP_KERNEL); 8541 if (!fw_ddb_entry) { 8542 ql4_printk(KERN_ERR, ha, 8543 "%s: Unable to allocate dma buffer\n", __func__); 8544 goto exit_login_resp; 8545 } 8546 8547 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8548 8549 for (idx = 0; idx < max_ddbs; idx++) { 8550 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8551 if (ddb_entry == NULL) 8552 continue; 8553 8554 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8555 DEBUG2(ql4_printk(KERN_INFO, ha, 8556 "%s: DDB index [%d]\n", __func__, 8557 ddb_entry->fw_ddb_index)); 8558 do { 8559 ret = qla4xxx_get_fwddb_entry(ha, 8560 ddb_entry->fw_ddb_index, 8561 fw_ddb_entry, fw_ddb_entry_dma, 8562 NULL, NULL, &ddb_state, NULL, 8563 NULL, NULL); 8564 if (ret == QLA_ERROR) 8565 goto exit_login_resp; 8566 8567 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8568 (ddb_state == DDB_DS_SESSION_FAILED)) 8569 break; 8570 8571 schedule_timeout_uninterruptible(HZ); 8572 8573 } while ((time_after(wtime, jiffies))); 8574 8575 if (!time_after(wtime, jiffies)) { 8576 DEBUG2(ql4_printk(KERN_INFO, ha, 8577 "%s: Login response wait timer expired\n", 8578 __func__)); 8579 goto exit_login_resp; 8580 } 8581 } 8582 } 8583 8584 exit_login_resp: 8585 if (fw_ddb_entry) 8586 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8587 fw_ddb_entry, fw_ddb_entry_dma); 8588 } 8589 8590 /** 8591 * qla4xxx_probe_adapter - callback function to probe HBA 8592 * @pdev: pointer to pci_dev structure 8593 * @pci_device_id: pointer to pci_device entry 8594 * 8595 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8596 * It returns zero if successful. It also initializes all data necessary for 8597 * the driver. 8598 **/ 8599 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8600 const struct pci_device_id *ent) 8601 { 8602 int ret = -ENODEV, status; 8603 struct Scsi_Host *host; 8604 struct scsi_qla_host *ha; 8605 uint8_t init_retry_count = 0; 8606 char buf[34]; 8607 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8608 uint32_t dev_state; 8609 8610 if (pci_enable_device(pdev)) 8611 return -1; 8612 8613 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8614 if (host == NULL) { 8615 printk(KERN_WARNING 8616 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8617 goto probe_disable_device; 8618 } 8619 8620 /* Clear our data area */ 8621 ha = to_qla_host(host); 8622 memset(ha, 0, sizeof(*ha)); 8623 8624 /* Save the information from PCI BIOS. */ 8625 ha->pdev = pdev; 8626 ha->host = host; 8627 ha->host_no = host->host_no; 8628 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8629 8630 pci_enable_pcie_error_reporting(pdev); 8631 8632 /* Setup Runtime configurable options */ 8633 if (is_qla8022(ha)) { 8634 ha->isp_ops = &qla4_82xx_isp_ops; 8635 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8636 ha->qdr_sn_window = -1; 8637 ha->ddr_mn_window = -1; 8638 ha->curr_window = 255; 8639 nx_legacy_intr = &legacy_intr[ha->func_num]; 8640 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8641 ha->nx_legacy_intr.tgt_status_reg = 8642 nx_legacy_intr->tgt_status_reg; 8643 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8644 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8645 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8646 ha->isp_ops = &qla4_83xx_isp_ops; 8647 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8648 } else { 8649 ha->isp_ops = &qla4xxx_isp_ops; 8650 } 8651 8652 if (is_qla80XX(ha)) { 8653 rwlock_init(&ha->hw_lock); 8654 ha->pf_bit = ha->func_num << 16; 8655 /* Set EEH reset type to fundamental if required by hba */ 8656 pdev->needs_freset = 1; 8657 } 8658 8659 /* Configure PCI I/O space. */ 8660 ret = ha->isp_ops->iospace_config(ha); 8661 if (ret) 8662 goto probe_failed_ioconfig; 8663 8664 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8665 pdev->device, pdev->irq, ha->reg); 8666 8667 qla4xxx_config_dma_addressing(ha); 8668 8669 /* Initialize lists and spinlocks. */ 8670 INIT_LIST_HEAD(&ha->free_srb_q); 8671 8672 mutex_init(&ha->mbox_sem); 8673 mutex_init(&ha->chap_sem); 8674 init_completion(&ha->mbx_intr_comp); 8675 init_completion(&ha->disable_acb_comp); 8676 init_completion(&ha->idc_comp); 8677 init_completion(&ha->link_up_comp); 8678 init_completion(&ha->disable_acb_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 ret = scsi_init_shared_tag_map(host, MAX_SRBS); 8704 if (ret) { 8705 ql4_printk(KERN_WARNING, ha, 8706 "%s: scsi_init_shared_tag_map failed\n", __func__); 8707 goto probe_failed; 8708 } 8709 8710 pci_set_drvdata(pdev, ha); 8711 8712 ret = scsi_add_host(host, &pdev->dev); 8713 if (ret) 8714 goto probe_failed; 8715 8716 if (is_qla80XX(ha)) 8717 qla4_8xxx_get_flash_info(ha); 8718 8719 if (is_qla8032(ha) || is_qla8042(ha)) { 8720 qla4_83xx_read_reset_template(ha); 8721 /* 8722 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8723 * If DONRESET_BIT0 is set, drivers should not set dev_state 8724 * to NEED_RESET. But if NEED_RESET is set, drivers should 8725 * should honor the reset. 8726 */ 8727 if (ql4xdontresethba == 1) 8728 qla4_83xx_set_idc_dontreset(ha); 8729 } 8730 8731 /* 8732 * Initialize the Host adapter request/response queues and 8733 * firmware 8734 * NOTE: interrupts enabled upon successful completion 8735 */ 8736 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8737 8738 /* Dont retry adapter initialization if IRQ allocation failed */ 8739 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8740 goto skip_retry_init; 8741 8742 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8743 init_retry_count++ < MAX_INIT_RETRIES) { 8744 8745 if (is_qla80XX(ha)) { 8746 ha->isp_ops->idc_lock(ha); 8747 dev_state = qla4_8xxx_rd_direct(ha, 8748 QLA8XXX_CRB_DEV_STATE); 8749 ha->isp_ops->idc_unlock(ha); 8750 if (dev_state == QLA8XXX_DEV_FAILED) { 8751 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8752 "initialize adapter. H/W is in failed state\n", 8753 __func__); 8754 break; 8755 } 8756 } 8757 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8758 "(%d)\n", __func__, init_retry_count)); 8759 8760 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8761 continue; 8762 8763 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8764 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8765 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8766 goto skip_retry_init; 8767 } 8768 } 8769 8770 skip_retry_init: 8771 if (!test_bit(AF_ONLINE, &ha->flags)) { 8772 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8773 8774 if ((is_qla8022(ha) && ql4xdontresethba) || 8775 ((is_qla8032(ha) || is_qla8042(ha)) && 8776 qla4_83xx_idc_dontreset(ha))) { 8777 /* Put the device in failed state. */ 8778 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8779 ha->isp_ops->idc_lock(ha); 8780 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8781 QLA8XXX_DEV_FAILED); 8782 ha->isp_ops->idc_unlock(ha); 8783 } 8784 ret = -ENODEV; 8785 goto remove_host; 8786 } 8787 8788 /* Startup the kernel thread for this host adapter. */ 8789 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8790 "qla4xxx_dpc\n", __func__)); 8791 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8792 ha->dpc_thread = create_singlethread_workqueue(buf); 8793 if (!ha->dpc_thread) { 8794 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8795 ret = -ENODEV; 8796 goto remove_host; 8797 } 8798 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8799 8800 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8801 ha->host_no); 8802 if (!ha->task_wq) { 8803 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8804 ret = -ENODEV; 8805 goto remove_host; 8806 } 8807 8808 /* 8809 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8810 * (which is called indirectly by qla4xxx_initialize_adapter), 8811 * so that irqs will be registered after crbinit but before 8812 * mbx_intr_enable. 8813 */ 8814 if (is_qla40XX(ha)) { 8815 ret = qla4xxx_request_irqs(ha); 8816 if (ret) { 8817 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8818 "interrupt %d already in use.\n", pdev->irq); 8819 goto remove_host; 8820 } 8821 } 8822 8823 pci_save_state(ha->pdev); 8824 ha->isp_ops->enable_intrs(ha); 8825 8826 /* Start timer thread. */ 8827 qla4xxx_start_timer(ha, qla4xxx_timer, 1); 8828 8829 set_bit(AF_INIT_DONE, &ha->flags); 8830 8831 qla4_8xxx_alloc_sysfs_attr(ha); 8832 8833 printk(KERN_INFO 8834 " QLogic iSCSI HBA Driver version: %s\n" 8835 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8836 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8837 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8838 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8839 8840 /* Set the driver version */ 8841 if (is_qla80XX(ha)) 8842 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8843 8844 if (qla4xxx_setup_boot_info(ha)) 8845 ql4_printk(KERN_ERR, ha, 8846 "%s: No iSCSI boot target configured\n", __func__); 8847 8848 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags); 8849 /* Perform the build ddb list and login to each */ 8850 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8851 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8852 qla4xxx_wait_login_resp_boot_tgt(ha); 8853 8854 qla4xxx_create_chap_list(ha); 8855 8856 qla4xxx_create_ifaces(ha); 8857 return 0; 8858 8859 remove_host: 8860 scsi_remove_host(ha->host); 8861 8862 probe_failed: 8863 qla4xxx_free_adapter(ha); 8864 8865 probe_failed_ioconfig: 8866 pci_disable_pcie_error_reporting(pdev); 8867 scsi_host_put(ha->host); 8868 8869 probe_disable_device: 8870 pci_disable_device(pdev); 8871 8872 return ret; 8873 } 8874 8875 /** 8876 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8877 * @ha: pointer to adapter structure 8878 * 8879 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8880 * so that the other port will not re-initialize while in the process of 8881 * removing the ha due to driver unload or hba hotplug. 8882 **/ 8883 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8884 { 8885 struct scsi_qla_host *other_ha = NULL; 8886 struct pci_dev *other_pdev = NULL; 8887 int fn = ISP4XXX_PCI_FN_2; 8888 8889 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8890 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8891 fn = ISP4XXX_PCI_FN_1; 8892 8893 other_pdev = 8894 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8895 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8896 fn)); 8897 8898 /* Get other_ha if other_pdev is valid and state is enable*/ 8899 if (other_pdev) { 8900 if (atomic_read(&other_pdev->enable_cnt)) { 8901 other_ha = pci_get_drvdata(other_pdev); 8902 if (other_ha) { 8903 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8904 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8905 "Prevent %s reinit\n", __func__, 8906 dev_name(&other_ha->pdev->dev))); 8907 } 8908 } 8909 pci_dev_put(other_pdev); 8910 } 8911 } 8912 8913 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8914 struct ddb_entry *ddb_entry) 8915 { 8916 struct dev_db_entry *fw_ddb_entry = NULL; 8917 dma_addr_t fw_ddb_entry_dma; 8918 unsigned long wtime; 8919 uint32_t ddb_state; 8920 int options; 8921 int status; 8922 8923 options = LOGOUT_OPTION_CLOSE_SESSION; 8924 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8925 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8926 goto clear_ddb; 8927 } 8928 8929 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8930 &fw_ddb_entry_dma, GFP_KERNEL); 8931 if (!fw_ddb_entry) { 8932 ql4_printk(KERN_ERR, ha, 8933 "%s: Unable to allocate dma buffer\n", __func__); 8934 goto clear_ddb; 8935 } 8936 8937 wtime = jiffies + (HZ * LOGOUT_TOV); 8938 do { 8939 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8940 fw_ddb_entry, fw_ddb_entry_dma, 8941 NULL, NULL, &ddb_state, NULL, 8942 NULL, NULL); 8943 if (status == QLA_ERROR) 8944 goto free_ddb; 8945 8946 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8947 (ddb_state == DDB_DS_SESSION_FAILED)) 8948 goto free_ddb; 8949 8950 schedule_timeout_uninterruptible(HZ); 8951 } while ((time_after(wtime, jiffies))); 8952 8953 free_ddb: 8954 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8955 fw_ddb_entry, fw_ddb_entry_dma); 8956 clear_ddb: 8957 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8958 } 8959 8960 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8961 { 8962 struct ddb_entry *ddb_entry; 8963 int idx; 8964 8965 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8966 8967 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8968 if ((ddb_entry != NULL) && 8969 (ddb_entry->ddb_type == FLASH_DDB)) { 8970 8971 qla4xxx_destroy_ddb(ha, ddb_entry); 8972 /* 8973 * we have decremented the reference count of the driver 8974 * when we setup the session to have the driver unload 8975 * to be seamless without actually destroying the 8976 * session 8977 **/ 8978 try_module_get(qla4xxx_iscsi_transport.owner); 8979 iscsi_destroy_endpoint(ddb_entry->conn->ep); 8980 qla4xxx_free_ddb(ha, ddb_entry); 8981 iscsi_session_teardown(ddb_entry->sess); 8982 } 8983 } 8984 } 8985 /** 8986 * qla4xxx_remove_adapter - callback function to remove adapter. 8987 * @pci_dev: PCI device pointer 8988 **/ 8989 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 8990 { 8991 struct scsi_qla_host *ha; 8992 8993 /* 8994 * If the PCI device is disabled then it means probe_adapter had 8995 * failed and resources already cleaned up on probe_adapter exit. 8996 */ 8997 if (!pci_is_enabled(pdev)) 8998 return; 8999 9000 ha = pci_get_drvdata(pdev); 9001 9002 if (is_qla40XX(ha)) 9003 qla4xxx_prevent_other_port_reinit(ha); 9004 9005 /* destroy iface from sysfs */ 9006 qla4xxx_destroy_ifaces(ha); 9007 9008 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 9009 iscsi_boot_destroy_kset(ha->boot_kset); 9010 9011 qla4xxx_destroy_fw_ddb_session(ha); 9012 qla4_8xxx_free_sysfs_attr(ha); 9013 9014 qla4xxx_sysfs_ddb_remove(ha); 9015 scsi_remove_host(ha->host); 9016 9017 qla4xxx_free_adapter(ha); 9018 9019 scsi_host_put(ha->host); 9020 9021 pci_disable_pcie_error_reporting(pdev); 9022 pci_disable_device(pdev); 9023 } 9024 9025 /** 9026 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9027 * @ha: HA context 9028 * 9029 * At exit, the @ha's flags.enable_64bit_addressing set to indicated 9030 * supported addressing method. 9031 */ 9032 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9033 { 9034 int retval; 9035 9036 /* Update our PCI device dma_mask for full 64 bit mask */ 9037 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 9038 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 9039 dev_dbg(&ha->pdev->dev, 9040 "Failed to set 64 bit PCI consistent mask; " 9041 "using 32 bit.\n"); 9042 retval = pci_set_consistent_dma_mask(ha->pdev, 9043 DMA_BIT_MASK(32)); 9044 } 9045 } else 9046 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 9047 } 9048 9049 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 9050 { 9051 struct iscsi_cls_session *cls_sess; 9052 struct iscsi_session *sess; 9053 struct ddb_entry *ddb; 9054 int queue_depth = QL4_DEF_QDEPTH; 9055 9056 cls_sess = starget_to_session(sdev->sdev_target); 9057 sess = cls_sess->dd_data; 9058 ddb = sess->dd_data; 9059 9060 sdev->hostdata = ddb; 9061 sdev->tagged_supported = 1; 9062 9063 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9064 queue_depth = ql4xmaxqdepth; 9065 9066 scsi_activate_tcq(sdev, queue_depth); 9067 return 0; 9068 } 9069 9070 static int qla4xxx_slave_configure(struct scsi_device *sdev) 9071 { 9072 sdev->tagged_supported = 1; 9073 return 0; 9074 } 9075 9076 static void qla4xxx_slave_destroy(struct scsi_device *sdev) 9077 { 9078 scsi_deactivate_tcq(sdev, 1); 9079 } 9080 9081 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 9082 int reason) 9083 { 9084 if (!ql4xqfulltracking) 9085 return -EOPNOTSUPP; 9086 9087 return iscsi_change_queue_depth(sdev, qdepth, reason); 9088 } 9089 9090 /** 9091 * qla4xxx_del_from_active_array - returns an active srb 9092 * @ha: Pointer to host adapter structure. 9093 * @index: index into the active_array 9094 * 9095 * This routine removes and returns the srb at the specified index 9096 **/ 9097 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9098 uint32_t index) 9099 { 9100 struct srb *srb = NULL; 9101 struct scsi_cmnd *cmd = NULL; 9102 9103 cmd = scsi_host_find_tag(ha->host, index); 9104 if (!cmd) 9105 return srb; 9106 9107 srb = (struct srb *)CMD_SP(cmd); 9108 if (!srb) 9109 return srb; 9110 9111 /* update counters */ 9112 if (srb->flags & SRB_DMA_VALID) { 9113 ha->iocb_cnt -= srb->iocb_cnt; 9114 if (srb->cmd) 9115 srb->cmd->host_scribble = 9116 (unsigned char *)(unsigned long) MAX_SRBS; 9117 } 9118 return srb; 9119 } 9120 9121 /** 9122 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9123 * @ha: Pointer to host adapter structure. 9124 * @cmd: Scsi Command to wait on. 9125 * 9126 * This routine waits for the command to be returned by the Firmware 9127 * for some max time. 9128 **/ 9129 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9130 struct scsi_cmnd *cmd) 9131 { 9132 int done = 0; 9133 struct srb *rp; 9134 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9135 int ret = SUCCESS; 9136 9137 /* Dont wait on command if PCI error is being handled 9138 * by PCI AER driver 9139 */ 9140 if (unlikely(pci_channel_offline(ha->pdev)) || 9141 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9142 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9143 ha->host_no, __func__); 9144 return ret; 9145 } 9146 9147 do { 9148 /* Checking to see if its returned to OS */ 9149 rp = (struct srb *) CMD_SP(cmd); 9150 if (rp == NULL) { 9151 done++; 9152 break; 9153 } 9154 9155 msleep(2000); 9156 } while (max_wait_time--); 9157 9158 return done; 9159 } 9160 9161 /** 9162 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9163 * @ha: Pointer to host adapter structure 9164 **/ 9165 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9166 { 9167 unsigned long wait_online; 9168 9169 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9170 while (time_before(jiffies, wait_online)) { 9171 9172 if (adapter_up(ha)) 9173 return QLA_SUCCESS; 9174 9175 msleep(2000); 9176 } 9177 9178 return QLA_ERROR; 9179 } 9180 9181 /** 9182 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9183 * @ha: pointer to HBA 9184 * @t: target id 9185 * @l: lun id 9186 * 9187 * This function waits for all outstanding commands to a lun to complete. It 9188 * returns 0 if all pending commands are returned and 1 otherwise. 9189 **/ 9190 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9191 struct scsi_target *stgt, 9192 struct scsi_device *sdev) 9193 { 9194 int cnt; 9195 int status = 0; 9196 struct scsi_cmnd *cmd; 9197 9198 /* 9199 * Waiting for all commands for the designated target or dev 9200 * in the active array 9201 */ 9202 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9203 cmd = scsi_host_find_tag(ha->host, cnt); 9204 if (cmd && stgt == scsi_target(cmd->device) && 9205 (!sdev || sdev == cmd->device)) { 9206 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9207 status++; 9208 break; 9209 } 9210 } 9211 } 9212 return status; 9213 } 9214 9215 /** 9216 * qla4xxx_eh_abort - callback for abort task. 9217 * @cmd: Pointer to Linux's SCSI command structure 9218 * 9219 * This routine is called by the Linux OS to abort the specified 9220 * command. 9221 **/ 9222 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9223 { 9224 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9225 unsigned int id = cmd->device->id; 9226 unsigned int lun = cmd->device->lun; 9227 unsigned long flags; 9228 struct srb *srb = NULL; 9229 int ret = SUCCESS; 9230 int wait = 0; 9231 9232 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d: Abort command issued cmd=%p, cdb=0x%x\n", 9233 ha->host_no, id, lun, cmd, cmd->cmnd[0]); 9234 9235 spin_lock_irqsave(&ha->hardware_lock, flags); 9236 srb = (struct srb *) CMD_SP(cmd); 9237 if (!srb) { 9238 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9239 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d: Specified command has already completed.\n", 9240 ha->host_no, id, lun); 9241 return SUCCESS; 9242 } 9243 kref_get(&srb->srb_ref); 9244 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9245 9246 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9247 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 9248 ha->host_no, id, lun)); 9249 ret = FAILED; 9250 } else { 9251 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 9252 ha->host_no, id, lun)); 9253 wait = 1; 9254 } 9255 9256 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9257 9258 /* Wait for command to complete */ 9259 if (wait) { 9260 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9261 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 9262 ha->host_no, id, lun)); 9263 ret = FAILED; 9264 } 9265 } 9266 9267 ql4_printk(KERN_INFO, ha, 9268 "scsi%ld:%d:%d: Abort command - %s\n", 9269 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9270 9271 return ret; 9272 } 9273 9274 /** 9275 * qla4xxx_eh_device_reset - callback for target reset. 9276 * @cmd: Pointer to Linux's SCSI command structure 9277 * 9278 * This routine is called by the Linux OS to reset all luns on the 9279 * specified target. 9280 **/ 9281 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9282 { 9283 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9284 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9285 int ret = FAILED, stat; 9286 9287 if (!ddb_entry) 9288 return ret; 9289 9290 ret = iscsi_block_scsi_eh(cmd); 9291 if (ret) 9292 return ret; 9293 ret = FAILED; 9294 9295 ql4_printk(KERN_INFO, ha, 9296 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 9297 cmd->device->channel, cmd->device->id, cmd->device->lun); 9298 9299 DEBUG2(printk(KERN_INFO 9300 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9301 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9302 cmd, jiffies, cmd->request->timeout / HZ, 9303 ha->dpc_flags, cmd->result, cmd->allowed)); 9304 9305 /* FIXME: wait for hba to go online */ 9306 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9307 if (stat != QLA_SUCCESS) { 9308 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9309 goto eh_dev_reset_done; 9310 } 9311 9312 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9313 cmd->device)) { 9314 ql4_printk(KERN_INFO, ha, 9315 "DEVICE RESET FAILED - waiting for " 9316 "commands.\n"); 9317 goto eh_dev_reset_done; 9318 } 9319 9320 /* Send marker. */ 9321 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9322 MM_LUN_RESET) != QLA_SUCCESS) 9323 goto eh_dev_reset_done; 9324 9325 ql4_printk(KERN_INFO, ha, 9326 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 9327 ha->host_no, cmd->device->channel, cmd->device->id, 9328 cmd->device->lun); 9329 9330 ret = SUCCESS; 9331 9332 eh_dev_reset_done: 9333 9334 return ret; 9335 } 9336 9337 /** 9338 * qla4xxx_eh_target_reset - callback for target reset. 9339 * @cmd: Pointer to Linux's SCSI command structure 9340 * 9341 * This routine is called by the Linux OS to reset the target. 9342 **/ 9343 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9344 { 9345 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9346 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9347 int stat, ret; 9348 9349 if (!ddb_entry) 9350 return FAILED; 9351 9352 ret = iscsi_block_scsi_eh(cmd); 9353 if (ret) 9354 return ret; 9355 9356 starget_printk(KERN_INFO, scsi_target(cmd->device), 9357 "WARM TARGET RESET ISSUED.\n"); 9358 9359 DEBUG2(printk(KERN_INFO 9360 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9361 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9362 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 9363 ha->dpc_flags, cmd->result, cmd->allowed)); 9364 9365 stat = qla4xxx_reset_target(ha, ddb_entry); 9366 if (stat != QLA_SUCCESS) { 9367 starget_printk(KERN_INFO, scsi_target(cmd->device), 9368 "WARM TARGET RESET FAILED.\n"); 9369 return FAILED; 9370 } 9371 9372 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9373 NULL)) { 9374 starget_printk(KERN_INFO, scsi_target(cmd->device), 9375 "WARM TARGET DEVICE RESET FAILED - " 9376 "waiting for commands.\n"); 9377 return FAILED; 9378 } 9379 9380 /* Send marker. */ 9381 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9382 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9383 starget_printk(KERN_INFO, scsi_target(cmd->device), 9384 "WARM TARGET DEVICE RESET FAILED - " 9385 "marker iocb failed.\n"); 9386 return FAILED; 9387 } 9388 9389 starget_printk(KERN_INFO, scsi_target(cmd->device), 9390 "WARM TARGET RESET SUCCEEDED.\n"); 9391 return SUCCESS; 9392 } 9393 9394 /** 9395 * qla4xxx_is_eh_active - check if error handler is running 9396 * @shost: Pointer to SCSI Host struct 9397 * 9398 * This routine finds that if reset host is called in EH 9399 * scenario or from some application like sg_reset 9400 **/ 9401 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9402 { 9403 if (shost->shost_state == SHOST_RECOVERY) 9404 return 1; 9405 return 0; 9406 } 9407 9408 /** 9409 * qla4xxx_eh_host_reset - kernel callback 9410 * @cmd: Pointer to Linux's SCSI command structure 9411 * 9412 * This routine is invoked by the Linux kernel to perform fatal error 9413 * recovery on the specified adapter. 9414 **/ 9415 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9416 { 9417 int return_status = FAILED; 9418 struct scsi_qla_host *ha; 9419 9420 ha = to_qla_host(cmd->device->host); 9421 9422 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9423 qla4_83xx_set_idc_dontreset(ha); 9424 9425 /* 9426 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9427 * protocol drivers, we should not set device_state to NEED_RESET 9428 */ 9429 if (ql4xdontresethba || 9430 ((is_qla8032(ha) || is_qla8042(ha)) && 9431 qla4_83xx_idc_dontreset(ha))) { 9432 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9433 ha->host_no, __func__)); 9434 9435 /* Clear outstanding srb in queues */ 9436 if (qla4xxx_is_eh_active(cmd->device->host)) 9437 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9438 9439 return FAILED; 9440 } 9441 9442 ql4_printk(KERN_INFO, ha, 9443 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 9444 cmd->device->channel, cmd->device->id, cmd->device->lun); 9445 9446 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9447 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9448 "DEAD.\n", ha->host_no, cmd->device->channel, 9449 __func__)); 9450 9451 return FAILED; 9452 } 9453 9454 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9455 if (is_qla80XX(ha)) 9456 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9457 else 9458 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9459 } 9460 9461 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9462 return_status = SUCCESS; 9463 9464 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9465 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9466 9467 return return_status; 9468 } 9469 9470 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9471 { 9472 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9473 uint32_t mbox_sts[MBOX_REG_COUNT]; 9474 struct addr_ctrl_blk_def *acb = NULL; 9475 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9476 int rval = QLA_SUCCESS; 9477 dma_addr_t acb_dma; 9478 9479 acb = dma_alloc_coherent(&ha->pdev->dev, 9480 sizeof(struct addr_ctrl_blk_def), 9481 &acb_dma, GFP_KERNEL); 9482 if (!acb) { 9483 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9484 __func__); 9485 rval = -ENOMEM; 9486 goto exit_port_reset; 9487 } 9488 9489 memset(acb, 0, acb_len); 9490 9491 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9492 if (rval != QLA_SUCCESS) { 9493 rval = -EIO; 9494 goto exit_free_acb; 9495 } 9496 9497 rval = qla4xxx_disable_acb(ha); 9498 if (rval != QLA_SUCCESS) { 9499 rval = -EIO; 9500 goto exit_free_acb; 9501 } 9502 9503 wait_for_completion_timeout(&ha->disable_acb_comp, 9504 DISABLE_ACB_TOV * HZ); 9505 9506 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9507 if (rval != QLA_SUCCESS) { 9508 rval = -EIO; 9509 goto exit_free_acb; 9510 } 9511 9512 exit_free_acb: 9513 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9514 acb, acb_dma); 9515 exit_port_reset: 9516 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9517 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9518 return rval; 9519 } 9520 9521 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9522 { 9523 struct scsi_qla_host *ha = to_qla_host(shost); 9524 int rval = QLA_SUCCESS; 9525 uint32_t idc_ctrl; 9526 9527 if (ql4xdontresethba) { 9528 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9529 __func__)); 9530 rval = -EPERM; 9531 goto exit_host_reset; 9532 } 9533 9534 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9535 goto recover_adapter; 9536 9537 switch (reset_type) { 9538 case SCSI_ADAPTER_RESET: 9539 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9540 break; 9541 case SCSI_FIRMWARE_RESET: 9542 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9543 if (is_qla80XX(ha)) 9544 /* set firmware context reset */ 9545 set_bit(DPC_RESET_HA_FW_CONTEXT, 9546 &ha->dpc_flags); 9547 else { 9548 rval = qla4xxx_context_reset(ha); 9549 goto exit_host_reset; 9550 } 9551 } 9552 break; 9553 } 9554 9555 recover_adapter: 9556 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9557 * reset is issued by application */ 9558 if ((is_qla8032(ha) || is_qla8042(ha)) && 9559 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9560 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9561 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9562 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9563 } 9564 9565 rval = qla4xxx_recover_adapter(ha); 9566 if (rval != QLA_SUCCESS) { 9567 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9568 __func__)); 9569 rval = -EIO; 9570 } 9571 9572 exit_host_reset: 9573 return rval; 9574 } 9575 9576 /* PCI AER driver recovers from all correctable errors w/o 9577 * driver intervention. For uncorrectable errors PCI AER 9578 * driver calls the following device driver's callbacks 9579 * 9580 * - Fatal Errors - link_reset 9581 * - Non-Fatal Errors - driver's pci_error_detected() which 9582 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9583 * 9584 * PCI AER driver calls 9585 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 9586 * returns RECOVERED or NEED_RESET if fw_hung 9587 * NEED_RESET - driver's slot_reset() 9588 * DISCONNECT - device is dead & cannot recover 9589 * RECOVERED - driver's pci_resume() 9590 */ 9591 static pci_ers_result_t 9592 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9593 { 9594 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9595 9596 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9597 ha->host_no, __func__, state); 9598 9599 if (!is_aer_supported(ha)) 9600 return PCI_ERS_RESULT_NONE; 9601 9602 switch (state) { 9603 case pci_channel_io_normal: 9604 clear_bit(AF_EEH_BUSY, &ha->flags); 9605 return PCI_ERS_RESULT_CAN_RECOVER; 9606 case pci_channel_io_frozen: 9607 set_bit(AF_EEH_BUSY, &ha->flags); 9608 qla4xxx_mailbox_premature_completion(ha); 9609 qla4xxx_free_irqs(ha); 9610 pci_disable_device(pdev); 9611 /* Return back all IOs */ 9612 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9613 return PCI_ERS_RESULT_NEED_RESET; 9614 case pci_channel_io_perm_failure: 9615 set_bit(AF_EEH_BUSY, &ha->flags); 9616 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9617 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9618 return PCI_ERS_RESULT_DISCONNECT; 9619 } 9620 return PCI_ERS_RESULT_NEED_RESET; 9621 } 9622 9623 /** 9624 * qla4xxx_pci_mmio_enabled() gets called if 9625 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9626 * and read/write to the device still works. 9627 **/ 9628 static pci_ers_result_t 9629 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9630 { 9631 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9632 9633 if (!is_aer_supported(ha)) 9634 return PCI_ERS_RESULT_NONE; 9635 9636 return PCI_ERS_RESULT_RECOVERED; 9637 } 9638 9639 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9640 { 9641 uint32_t rval = QLA_ERROR; 9642 int fn; 9643 struct pci_dev *other_pdev = NULL; 9644 9645 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9646 9647 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9648 9649 if (test_bit(AF_ONLINE, &ha->flags)) { 9650 clear_bit(AF_ONLINE, &ha->flags); 9651 clear_bit(AF_LINK_UP, &ha->flags); 9652 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9653 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9654 } 9655 9656 fn = PCI_FUNC(ha->pdev->devfn); 9657 if (is_qla8022(ha)) { 9658 while (fn > 0) { 9659 fn--; 9660 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9661 ha->host_no, __func__, fn); 9662 /* Get the pci device given the domain, bus, 9663 * slot/function number */ 9664 other_pdev = pci_get_domain_bus_and_slot( 9665 pci_domain_nr(ha->pdev->bus), 9666 ha->pdev->bus->number, 9667 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9668 fn)); 9669 9670 if (!other_pdev) 9671 continue; 9672 9673 if (atomic_read(&other_pdev->enable_cnt)) { 9674 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9675 ha->host_no, __func__, fn); 9676 pci_dev_put(other_pdev); 9677 break; 9678 } 9679 pci_dev_put(other_pdev); 9680 } 9681 } else { 9682 /* this case is meant for ISP83xx/ISP84xx only */ 9683 if (qla4_83xx_can_perform_reset(ha)) { 9684 /* reset fn as iSCSI is going to perform the reset */ 9685 fn = 0; 9686 } 9687 } 9688 9689 /* The first function on the card, the reset owner will 9690 * start & initialize the firmware. The other functions 9691 * on the card will reset the firmware context 9692 */ 9693 if (!fn) { 9694 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9695 "0x%x is the owner\n", ha->host_no, __func__, 9696 ha->pdev->devfn); 9697 9698 ha->isp_ops->idc_lock(ha); 9699 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9700 QLA8XXX_DEV_COLD); 9701 ha->isp_ops->idc_unlock(ha); 9702 9703 rval = qla4_8xxx_update_idc_reg(ha); 9704 if (rval == QLA_ERROR) { 9705 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9706 ha->host_no, __func__); 9707 ha->isp_ops->idc_lock(ha); 9708 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9709 QLA8XXX_DEV_FAILED); 9710 ha->isp_ops->idc_unlock(ha); 9711 goto exit_error_recovery; 9712 } 9713 9714 clear_bit(AF_FW_RECOVERY, &ha->flags); 9715 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9716 9717 if (rval != QLA_SUCCESS) { 9718 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9719 "FAILED\n", ha->host_no, __func__); 9720 qla4xxx_free_irqs(ha); 9721 ha->isp_ops->idc_lock(ha); 9722 qla4_8xxx_clear_drv_active(ha); 9723 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9724 QLA8XXX_DEV_FAILED); 9725 ha->isp_ops->idc_unlock(ha); 9726 } else { 9727 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9728 "READY\n", ha->host_no, __func__); 9729 ha->isp_ops->idc_lock(ha); 9730 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9731 QLA8XXX_DEV_READY); 9732 /* Clear driver state register */ 9733 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9734 qla4_8xxx_set_drv_active(ha); 9735 ha->isp_ops->idc_unlock(ha); 9736 ha->isp_ops->enable_intrs(ha); 9737 } 9738 } else { 9739 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9740 "the reset owner\n", ha->host_no, __func__, 9741 ha->pdev->devfn); 9742 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9743 QLA8XXX_DEV_READY)) { 9744 clear_bit(AF_FW_RECOVERY, &ha->flags); 9745 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9746 if (rval == QLA_SUCCESS) 9747 ha->isp_ops->enable_intrs(ha); 9748 else 9749 qla4xxx_free_irqs(ha); 9750 9751 ha->isp_ops->idc_lock(ha); 9752 qla4_8xxx_set_drv_active(ha); 9753 ha->isp_ops->idc_unlock(ha); 9754 } 9755 } 9756 exit_error_recovery: 9757 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9758 return rval; 9759 } 9760 9761 static pci_ers_result_t 9762 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9763 { 9764 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9765 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9766 int rc; 9767 9768 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9769 ha->host_no, __func__); 9770 9771 if (!is_aer_supported(ha)) 9772 return PCI_ERS_RESULT_NONE; 9773 9774 /* Restore the saved state of PCIe device - 9775 * BAR registers, PCI Config space, PCIX, MSI, 9776 * IOV states 9777 */ 9778 pci_restore_state(pdev); 9779 9780 /* pci_restore_state() clears the saved_state flag of the device 9781 * save restored state which resets saved_state flag 9782 */ 9783 pci_save_state(pdev); 9784 9785 /* Initialize device or resume if in suspended state */ 9786 rc = pci_enable_device(pdev); 9787 if (rc) { 9788 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9789 "device after reset\n", ha->host_no, __func__); 9790 goto exit_slot_reset; 9791 } 9792 9793 ha->isp_ops->disable_intrs(ha); 9794 9795 if (is_qla80XX(ha)) { 9796 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9797 ret = PCI_ERS_RESULT_RECOVERED; 9798 goto exit_slot_reset; 9799 } else 9800 goto exit_slot_reset; 9801 } 9802 9803 exit_slot_reset: 9804 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9805 "device after reset\n", ha->host_no, __func__, ret); 9806 return ret; 9807 } 9808 9809 static void 9810 qla4xxx_pci_resume(struct pci_dev *pdev) 9811 { 9812 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9813 int ret; 9814 9815 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9816 ha->host_no, __func__); 9817 9818 ret = qla4xxx_wait_for_hba_online(ha); 9819 if (ret != QLA_SUCCESS) { 9820 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9821 "resume I/O from slot/link_reset\n", ha->host_no, 9822 __func__); 9823 } 9824 9825 pci_cleanup_aer_uncorrect_error_status(pdev); 9826 clear_bit(AF_EEH_BUSY, &ha->flags); 9827 } 9828 9829 static const struct pci_error_handlers qla4xxx_err_handler = { 9830 .error_detected = qla4xxx_pci_error_detected, 9831 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9832 .slot_reset = qla4xxx_pci_slot_reset, 9833 .resume = qla4xxx_pci_resume, 9834 }; 9835 9836 static struct pci_device_id qla4xxx_pci_tbl[] = { 9837 { 9838 .vendor = PCI_VENDOR_ID_QLOGIC, 9839 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9840 .subvendor = PCI_ANY_ID, 9841 .subdevice = PCI_ANY_ID, 9842 }, 9843 { 9844 .vendor = PCI_VENDOR_ID_QLOGIC, 9845 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9846 .subvendor = PCI_ANY_ID, 9847 .subdevice = PCI_ANY_ID, 9848 }, 9849 { 9850 .vendor = PCI_VENDOR_ID_QLOGIC, 9851 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9852 .subvendor = PCI_ANY_ID, 9853 .subdevice = PCI_ANY_ID, 9854 }, 9855 { 9856 .vendor = PCI_VENDOR_ID_QLOGIC, 9857 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9858 .subvendor = PCI_ANY_ID, 9859 .subdevice = PCI_ANY_ID, 9860 }, 9861 { 9862 .vendor = PCI_VENDOR_ID_QLOGIC, 9863 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9864 .subvendor = PCI_ANY_ID, 9865 .subdevice = PCI_ANY_ID, 9866 }, 9867 { 9868 .vendor = PCI_VENDOR_ID_QLOGIC, 9869 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9870 .subvendor = PCI_ANY_ID, 9871 .subdevice = PCI_ANY_ID, 9872 }, 9873 {0, 0}, 9874 }; 9875 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9876 9877 static struct pci_driver qla4xxx_pci_driver = { 9878 .name = DRIVER_NAME, 9879 .id_table = qla4xxx_pci_tbl, 9880 .probe = qla4xxx_probe_adapter, 9881 .remove = qla4xxx_remove_adapter, 9882 .err_handler = &qla4xxx_err_handler, 9883 }; 9884 9885 static int __init qla4xxx_module_init(void) 9886 { 9887 int ret; 9888 9889 /* Allocate cache for SRBs. */ 9890 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9891 SLAB_HWCACHE_ALIGN, NULL); 9892 if (srb_cachep == NULL) { 9893 printk(KERN_ERR 9894 "%s: Unable to allocate SRB cache..." 9895 "Failing load!\n", DRIVER_NAME); 9896 ret = -ENOMEM; 9897 goto no_srp_cache; 9898 } 9899 9900 /* Derive version string. */ 9901 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9902 if (ql4xextended_error_logging) 9903 strcat(qla4xxx_version_str, "-debug"); 9904 9905 qla4xxx_scsi_transport = 9906 iscsi_register_transport(&qla4xxx_iscsi_transport); 9907 if (!qla4xxx_scsi_transport){ 9908 ret = -ENODEV; 9909 goto release_srb_cache; 9910 } 9911 9912 ret = pci_register_driver(&qla4xxx_pci_driver); 9913 if (ret) 9914 goto unregister_transport; 9915 9916 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9917 return 0; 9918 9919 unregister_transport: 9920 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9921 release_srb_cache: 9922 kmem_cache_destroy(srb_cachep); 9923 no_srp_cache: 9924 return ret; 9925 } 9926 9927 static void __exit qla4xxx_module_exit(void) 9928 { 9929 pci_unregister_driver(&qla4xxx_pci_driver); 9930 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9931 kmem_cache_destroy(srb_cachep); 9932 } 9933 9934 module_init(qla4xxx_module_init); 9935 module_exit(qla4xxx_module_exit); 9936 9937 MODULE_AUTHOR("QLogic Corporation"); 9938 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9939 MODULE_LICENSE("GPL"); 9940 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9941