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 = 0x1F; 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 0x1F.\n" 91 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F"); 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 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1674 if (!shost) { 1675 ret = -ENXIO; 1676 printk(KERN_ERR "%s: shost is NULL\n", 1677 __func__); 1678 return ERR_PTR(ret); 1679 } 1680 1681 ha = iscsi_host_priv(shost); 1682 1683 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 1684 if (!ep) { 1685 ret = -ENOMEM; 1686 return ERR_PTR(ret); 1687 } 1688 1689 qla_ep = ep->dd_data; 1690 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 1691 if (dst_addr->sa_family == AF_INET) { 1692 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 1693 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 1694 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 1695 (char *)&addr->sin_addr)); 1696 } else if (dst_addr->sa_family == AF_INET6) { 1697 memcpy(&qla_ep->dst_addr, dst_addr, 1698 sizeof(struct sockaddr_in6)); 1699 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 1700 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 1701 (char *)&addr6->sin6_addr)); 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 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1716 qla_ep = ep->dd_data; 1717 ha = to_qla_host(qla_ep->host); 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 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1728 iscsi_destroy_endpoint(ep); 1729 } 1730 1731 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 1732 enum iscsi_param param, 1733 char *buf) 1734 { 1735 struct qla_endpoint *qla_ep = ep->dd_data; 1736 struct sockaddr *dst_addr; 1737 1738 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1739 1740 switch (param) { 1741 case ISCSI_PARAM_CONN_PORT: 1742 case ISCSI_PARAM_CONN_ADDRESS: 1743 if (!qla_ep) 1744 return -ENOTCONN; 1745 1746 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1747 if (!dst_addr) 1748 return -ENOTCONN; 1749 1750 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1751 &qla_ep->dst_addr, param, buf); 1752 default: 1753 return -ENOSYS; 1754 } 1755 } 1756 1757 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 1758 struct iscsi_stats *stats) 1759 { 1760 struct iscsi_session *sess; 1761 struct iscsi_cls_session *cls_sess; 1762 struct ddb_entry *ddb_entry; 1763 struct scsi_qla_host *ha; 1764 struct ql_iscsi_stats *ql_iscsi_stats; 1765 int stats_size; 1766 int ret; 1767 dma_addr_t iscsi_stats_dma; 1768 1769 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1770 1771 cls_sess = iscsi_conn_to_session(cls_conn); 1772 sess = cls_sess->dd_data; 1773 ddb_entry = sess->dd_data; 1774 ha = ddb_entry->ha; 1775 1776 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1777 /* Allocate memory */ 1778 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1779 &iscsi_stats_dma, GFP_KERNEL); 1780 if (!ql_iscsi_stats) { 1781 ql4_printk(KERN_ERR, ha, 1782 "Unable to allocate memory for iscsi stats\n"); 1783 goto exit_get_stats; 1784 } 1785 1786 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 1787 iscsi_stats_dma); 1788 if (ret != QLA_SUCCESS) { 1789 ql4_printk(KERN_ERR, ha, 1790 "Unable to retrieve iscsi stats\n"); 1791 goto free_stats; 1792 } 1793 1794 /* octets */ 1795 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 1796 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 1797 /* xmit pdus */ 1798 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 1799 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 1800 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 1801 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 1802 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 1803 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 1804 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 1805 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 1806 /* recv pdus */ 1807 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 1808 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 1809 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 1810 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 1811 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 1812 stats->logoutrsp_pdus = 1813 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 1814 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 1815 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 1816 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 1817 1818 free_stats: 1819 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 1820 iscsi_stats_dma); 1821 exit_get_stats: 1822 return; 1823 } 1824 1825 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 1826 { 1827 struct iscsi_cls_session *session; 1828 struct iscsi_session *sess; 1829 unsigned long flags; 1830 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 1831 1832 session = starget_to_session(scsi_target(sc->device)); 1833 sess = session->dd_data; 1834 1835 spin_lock_irqsave(&session->lock, flags); 1836 if (session->state == ISCSI_SESSION_FAILED) 1837 ret = BLK_EH_RESET_TIMER; 1838 spin_unlock_irqrestore(&session->lock, flags); 1839 1840 return ret; 1841 } 1842 1843 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 1844 { 1845 struct scsi_qla_host *ha = to_qla_host(shost); 1846 struct iscsi_cls_host *ihost = shost->shost_data; 1847 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 1848 1849 qla4xxx_get_firmware_state(ha); 1850 1851 switch (ha->addl_fw_state & 0x0F00) { 1852 case FW_ADDSTATE_LINK_SPEED_10MBPS: 1853 speed = ISCSI_PORT_SPEED_10MBPS; 1854 break; 1855 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1856 speed = ISCSI_PORT_SPEED_100MBPS; 1857 break; 1858 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1859 speed = ISCSI_PORT_SPEED_1GBPS; 1860 break; 1861 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1862 speed = ISCSI_PORT_SPEED_10GBPS; 1863 break; 1864 } 1865 ihost->port_speed = speed; 1866 } 1867 1868 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1869 { 1870 struct scsi_qla_host *ha = to_qla_host(shost); 1871 struct iscsi_cls_host *ihost = shost->shost_data; 1872 uint32_t state = ISCSI_PORT_STATE_DOWN; 1873 1874 if (test_bit(AF_LINK_UP, &ha->flags)) 1875 state = ISCSI_PORT_STATE_UP; 1876 1877 ihost->port_state = state; 1878 } 1879 1880 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1881 enum iscsi_host_param param, char *buf) 1882 { 1883 struct scsi_qla_host *ha = to_qla_host(shost); 1884 int len; 1885 1886 switch (param) { 1887 case ISCSI_HOST_PARAM_HWADDRESS: 1888 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1889 break; 1890 case ISCSI_HOST_PARAM_IPADDRESS: 1891 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1892 break; 1893 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1894 len = sprintf(buf, "%s\n", ha->name_string); 1895 break; 1896 case ISCSI_HOST_PARAM_PORT_STATE: 1897 qla4xxx_set_port_state(shost); 1898 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1899 break; 1900 case ISCSI_HOST_PARAM_PORT_SPEED: 1901 qla4xxx_set_port_speed(shost); 1902 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1903 break; 1904 default: 1905 return -ENOSYS; 1906 } 1907 1908 return len; 1909 } 1910 1911 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1912 { 1913 if (ha->iface_ipv4) 1914 return; 1915 1916 /* IPv4 */ 1917 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1918 &qla4xxx_iscsi_transport, 1919 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1920 if (!ha->iface_ipv4) 1921 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1922 "iface0.\n"); 1923 } 1924 1925 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1926 { 1927 if (!ha->iface_ipv6_0) 1928 /* IPv6 iface-0 */ 1929 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1930 &qla4xxx_iscsi_transport, 1931 ISCSI_IFACE_TYPE_IPV6, 0, 1932 0); 1933 if (!ha->iface_ipv6_0) 1934 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1935 "iface0.\n"); 1936 1937 if (!ha->iface_ipv6_1) 1938 /* IPv6 iface-1 */ 1939 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1940 &qla4xxx_iscsi_transport, 1941 ISCSI_IFACE_TYPE_IPV6, 1, 1942 0); 1943 if (!ha->iface_ipv6_1) 1944 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1945 "iface1.\n"); 1946 } 1947 1948 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 1949 { 1950 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 1951 qla4xxx_create_ipv4_iface(ha); 1952 1953 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 1954 qla4xxx_create_ipv6_iface(ha); 1955 } 1956 1957 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 1958 { 1959 if (ha->iface_ipv4) { 1960 iscsi_destroy_iface(ha->iface_ipv4); 1961 ha->iface_ipv4 = NULL; 1962 } 1963 } 1964 1965 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 1966 { 1967 if (ha->iface_ipv6_0) { 1968 iscsi_destroy_iface(ha->iface_ipv6_0); 1969 ha->iface_ipv6_0 = NULL; 1970 } 1971 if (ha->iface_ipv6_1) { 1972 iscsi_destroy_iface(ha->iface_ipv6_1); 1973 ha->iface_ipv6_1 = NULL; 1974 } 1975 } 1976 1977 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 1978 { 1979 qla4xxx_destroy_ipv4_iface(ha); 1980 qla4xxx_destroy_ipv6_iface(ha); 1981 } 1982 1983 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 1984 struct iscsi_iface_param_info *iface_param, 1985 struct addr_ctrl_blk *init_fw_cb) 1986 { 1987 /* 1988 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 1989 * iface_num 1 is valid only for IPv6 Addr. 1990 */ 1991 switch (iface_param->param) { 1992 case ISCSI_NET_PARAM_IPV6_ADDR: 1993 if (iface_param->iface_num & 0x1) 1994 /* IPv6 Addr 1 */ 1995 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 1996 sizeof(init_fw_cb->ipv6_addr1)); 1997 else 1998 /* IPv6 Addr 0 */ 1999 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 2000 sizeof(init_fw_cb->ipv6_addr0)); 2001 break; 2002 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 2003 if (iface_param->iface_num & 0x1) 2004 break; 2005 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 2006 sizeof(init_fw_cb->ipv6_if_id)); 2007 break; 2008 case ISCSI_NET_PARAM_IPV6_ROUTER: 2009 if (iface_param->iface_num & 0x1) 2010 break; 2011 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 2012 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2013 break; 2014 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 2015 /* Autocfg applies to even interface */ 2016 if (iface_param->iface_num & 0x1) 2017 break; 2018 2019 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 2020 init_fw_cb->ipv6_addtl_opts &= 2021 cpu_to_le16( 2022 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2023 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 2024 init_fw_cb->ipv6_addtl_opts |= 2025 cpu_to_le16( 2026 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2027 else 2028 ql4_printk(KERN_ERR, ha, 2029 "Invalid autocfg setting for IPv6 addr\n"); 2030 break; 2031 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2032 /* Autocfg applies to even interface */ 2033 if (iface_param->iface_num & 0x1) 2034 break; 2035 2036 if (iface_param->value[0] == 2037 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 2038 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 2039 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2040 else if (iface_param->value[0] == 2041 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 2042 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 2043 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2044 else 2045 ql4_printk(KERN_ERR, ha, 2046 "Invalid autocfg setting for IPv6 linklocal addr\n"); 2047 break; 2048 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 2049 /* Autocfg applies to even interface */ 2050 if (iface_param->iface_num & 0x1) 2051 break; 2052 2053 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 2054 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 2055 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2056 break; 2057 case ISCSI_NET_PARAM_IFACE_ENABLE: 2058 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2059 init_fw_cb->ipv6_opts |= 2060 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 2061 qla4xxx_create_ipv6_iface(ha); 2062 } else { 2063 init_fw_cb->ipv6_opts &= 2064 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 2065 0xFFFF); 2066 qla4xxx_destroy_ipv6_iface(ha); 2067 } 2068 break; 2069 case ISCSI_NET_PARAM_VLAN_TAG: 2070 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 2071 break; 2072 init_fw_cb->ipv6_vlan_tag = 2073 cpu_to_be16(*(uint16_t *)iface_param->value); 2074 break; 2075 case ISCSI_NET_PARAM_VLAN_ENABLED: 2076 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2077 init_fw_cb->ipv6_opts |= 2078 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 2079 else 2080 init_fw_cb->ipv6_opts &= 2081 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 2082 break; 2083 case ISCSI_NET_PARAM_MTU: 2084 init_fw_cb->eth_mtu_size = 2085 cpu_to_le16(*(uint16_t *)iface_param->value); 2086 break; 2087 case ISCSI_NET_PARAM_PORT: 2088 /* Autocfg applies to even interface */ 2089 if (iface_param->iface_num & 0x1) 2090 break; 2091 2092 init_fw_cb->ipv6_port = 2093 cpu_to_le16(*(uint16_t *)iface_param->value); 2094 break; 2095 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2096 if (iface_param->iface_num & 0x1) 2097 break; 2098 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2099 init_fw_cb->ipv6_tcp_opts |= 2100 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2101 else 2102 init_fw_cb->ipv6_tcp_opts &= 2103 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2104 break; 2105 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2106 if (iface_param->iface_num & 0x1) 2107 break; 2108 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2109 init_fw_cb->ipv6_tcp_opts |= 2110 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2111 else 2112 init_fw_cb->ipv6_tcp_opts &= 2113 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2114 break; 2115 case ISCSI_NET_PARAM_TCP_WSF_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_WINDOW_SCALE_DISABLE); 2121 else 2122 init_fw_cb->ipv6_tcp_opts &= 2123 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2124 break; 2125 case ISCSI_NET_PARAM_TCP_WSF: 2126 if (iface_param->iface_num & 0x1) 2127 break; 2128 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; 2129 break; 2130 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2131 if (iface_param->iface_num & 0x1) 2132 break; 2133 init_fw_cb->ipv6_tcp_opts &= 2134 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); 2135 init_fw_cb->ipv6_tcp_opts |= 2136 cpu_to_le16((iface_param->value[0] << 1) & 2137 IPV6_TCPOPT_TIMER_SCALE); 2138 break; 2139 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2140 if (iface_param->iface_num & 0x1) 2141 break; 2142 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2143 init_fw_cb->ipv6_tcp_opts |= 2144 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); 2145 else 2146 init_fw_cb->ipv6_tcp_opts &= 2147 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); 2148 break; 2149 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_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_opts |= 2154 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2155 else 2156 init_fw_cb->ipv6_opts &= 2157 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2158 break; 2159 case ISCSI_NET_PARAM_REDIRECT_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_REDIRECT_EN); 2165 else 2166 init_fw_cb->ipv6_opts &= 2167 cpu_to_le16(~IPV6_OPT_REDIRECT_EN); 2168 break; 2169 case ISCSI_NET_PARAM_IPV6_MLD_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_addtl_opts |= 2174 cpu_to_le16(IPV6_ADDOPT_MLD_EN); 2175 else 2176 init_fw_cb->ipv6_addtl_opts &= 2177 cpu_to_le16(~IPV6_ADDOPT_MLD_EN); 2178 break; 2179 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 2180 if (iface_param->iface_num & 0x1) 2181 break; 2182 init_fw_cb->ipv6_flow_lbl = 2183 cpu_to_le16(*(uint16_t *)iface_param->value); 2184 break; 2185 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 2186 if (iface_param->iface_num & 0x1) 2187 break; 2188 init_fw_cb->ipv6_traffic_class = iface_param->value[0]; 2189 break; 2190 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 2191 if (iface_param->iface_num & 0x1) 2192 break; 2193 init_fw_cb->ipv6_hop_limit = iface_param->value[0]; 2194 break; 2195 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 2196 if (iface_param->iface_num & 0x1) 2197 break; 2198 init_fw_cb->ipv6_nd_reach_time = 2199 cpu_to_le32(*(uint32_t *)iface_param->value); 2200 break; 2201 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 2202 if (iface_param->iface_num & 0x1) 2203 break; 2204 init_fw_cb->ipv6_nd_rexmit_timer = 2205 cpu_to_le32(*(uint32_t *)iface_param->value); 2206 break; 2207 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 2208 if (iface_param->iface_num & 0x1) 2209 break; 2210 init_fw_cb->ipv6_nd_stale_timeout = 2211 cpu_to_le32(*(uint32_t *)iface_param->value); 2212 break; 2213 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 2214 if (iface_param->iface_num & 0x1) 2215 break; 2216 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; 2217 break; 2218 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 2219 if (iface_param->iface_num & 0x1) 2220 break; 2221 init_fw_cb->ipv6_gw_advrt_mtu = 2222 cpu_to_le32(*(uint32_t *)iface_param->value); 2223 break; 2224 default: 2225 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 2226 iface_param->param); 2227 break; 2228 } 2229 } 2230 2231 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 2232 struct iscsi_iface_param_info *iface_param, 2233 struct addr_ctrl_blk *init_fw_cb) 2234 { 2235 switch (iface_param->param) { 2236 case ISCSI_NET_PARAM_IPV4_ADDR: 2237 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 2238 sizeof(init_fw_cb->ipv4_addr)); 2239 break; 2240 case ISCSI_NET_PARAM_IPV4_SUBNET: 2241 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 2242 sizeof(init_fw_cb->ipv4_subnet)); 2243 break; 2244 case ISCSI_NET_PARAM_IPV4_GW: 2245 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 2246 sizeof(init_fw_cb->ipv4_gw_addr)); 2247 break; 2248 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 2249 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 2250 init_fw_cb->ipv4_tcp_opts |= 2251 cpu_to_le16(TCPOPT_DHCP_ENABLE); 2252 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 2253 init_fw_cb->ipv4_tcp_opts &= 2254 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 2255 else 2256 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 2257 break; 2258 case ISCSI_NET_PARAM_IFACE_ENABLE: 2259 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2260 init_fw_cb->ipv4_ip_opts |= 2261 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 2262 qla4xxx_create_ipv4_iface(ha); 2263 } else { 2264 init_fw_cb->ipv4_ip_opts &= 2265 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 2266 0xFFFF); 2267 qla4xxx_destroy_ipv4_iface(ha); 2268 } 2269 break; 2270 case ISCSI_NET_PARAM_VLAN_TAG: 2271 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 2272 break; 2273 init_fw_cb->ipv4_vlan_tag = 2274 cpu_to_be16(*(uint16_t *)iface_param->value); 2275 break; 2276 case ISCSI_NET_PARAM_VLAN_ENABLED: 2277 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2278 init_fw_cb->ipv4_ip_opts |= 2279 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 2280 else 2281 init_fw_cb->ipv4_ip_opts &= 2282 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 2283 break; 2284 case ISCSI_NET_PARAM_MTU: 2285 init_fw_cb->eth_mtu_size = 2286 cpu_to_le16(*(uint16_t *)iface_param->value); 2287 break; 2288 case ISCSI_NET_PARAM_PORT: 2289 init_fw_cb->ipv4_port = 2290 cpu_to_le16(*(uint16_t *)iface_param->value); 2291 break; 2292 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2293 if (iface_param->iface_num & 0x1) 2294 break; 2295 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2296 init_fw_cb->ipv4_tcp_opts |= 2297 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); 2298 else 2299 init_fw_cb->ipv4_tcp_opts &= 2300 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE); 2301 break; 2302 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 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_NAGLE_ALGO_DISABLE); 2308 else 2309 init_fw_cb->ipv4_tcp_opts &= 2310 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); 2311 break; 2312 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2313 if (iface_param->iface_num & 0x1) 2314 break; 2315 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2316 init_fw_cb->ipv4_tcp_opts |= 2317 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); 2318 else 2319 init_fw_cb->ipv4_tcp_opts &= 2320 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); 2321 break; 2322 case ISCSI_NET_PARAM_TCP_WSF: 2323 if (iface_param->iface_num & 0x1) 2324 break; 2325 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; 2326 break; 2327 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2328 if (iface_param->iface_num & 0x1) 2329 break; 2330 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); 2331 init_fw_cb->ipv4_tcp_opts |= 2332 cpu_to_le16((iface_param->value[0] << 1) & 2333 TCPOPT_TIMER_SCALE); 2334 break; 2335 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2336 if (iface_param->iface_num & 0x1) 2337 break; 2338 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2339 init_fw_cb->ipv4_tcp_opts |= 2340 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); 2341 else 2342 init_fw_cb->ipv4_tcp_opts &= 2343 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); 2344 break; 2345 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 2346 if (iface_param->iface_num & 0x1) 2347 break; 2348 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2349 init_fw_cb->ipv4_tcp_opts |= 2350 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); 2351 else 2352 init_fw_cb->ipv4_tcp_opts &= 2353 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); 2354 break; 2355 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 2356 if (iface_param->iface_num & 0x1) 2357 break; 2358 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2359 init_fw_cb->ipv4_tcp_opts |= 2360 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); 2361 else 2362 init_fw_cb->ipv4_tcp_opts &= 2363 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); 2364 break; 2365 case ISCSI_NET_PARAM_IPV4_TOS_EN: 2366 if (iface_param->iface_num & 0x1) 2367 break; 2368 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2369 init_fw_cb->ipv4_ip_opts |= 2370 cpu_to_le16(IPOPT_IPV4_TOS_EN); 2371 else 2372 init_fw_cb->ipv4_ip_opts &= 2373 cpu_to_le16(~IPOPT_IPV4_TOS_EN); 2374 break; 2375 case ISCSI_NET_PARAM_IPV4_TOS: 2376 if (iface_param->iface_num & 0x1) 2377 break; 2378 init_fw_cb->ipv4_tos = iface_param->value[0]; 2379 break; 2380 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 2381 if (iface_param->iface_num & 0x1) 2382 break; 2383 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2384 init_fw_cb->ipv4_ip_opts |= 2385 cpu_to_le16(IPOPT_GRAT_ARP_EN); 2386 else 2387 init_fw_cb->ipv4_ip_opts &= 2388 cpu_to_le16(~IPOPT_GRAT_ARP_EN); 2389 break; 2390 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 2391 if (iface_param->iface_num & 0x1) 2392 break; 2393 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2394 init_fw_cb->ipv4_ip_opts |= 2395 cpu_to_le16(IPOPT_ALT_CID_EN); 2396 else 2397 init_fw_cb->ipv4_ip_opts &= 2398 cpu_to_le16(~IPOPT_ALT_CID_EN); 2399 break; 2400 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 2401 if (iface_param->iface_num & 0x1) 2402 break; 2403 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, 2404 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); 2405 init_fw_cb->ipv4_dhcp_alt_cid_len = 2406 strlen(init_fw_cb->ipv4_dhcp_alt_cid); 2407 break; 2408 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 2409 if (iface_param->iface_num & 0x1) 2410 break; 2411 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2412 init_fw_cb->ipv4_ip_opts |= 2413 cpu_to_le16(IPOPT_REQ_VID_EN); 2414 else 2415 init_fw_cb->ipv4_ip_opts &= 2416 cpu_to_le16(~IPOPT_REQ_VID_EN); 2417 break; 2418 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 2419 if (iface_param->iface_num & 0x1) 2420 break; 2421 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2422 init_fw_cb->ipv4_ip_opts |= 2423 cpu_to_le16(IPOPT_USE_VID_EN); 2424 else 2425 init_fw_cb->ipv4_ip_opts &= 2426 cpu_to_le16(~IPOPT_USE_VID_EN); 2427 break; 2428 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 2429 if (iface_param->iface_num & 0x1) 2430 break; 2431 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, 2432 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); 2433 init_fw_cb->ipv4_dhcp_vid_len = 2434 strlen(init_fw_cb->ipv4_dhcp_vid); 2435 break; 2436 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 2437 if (iface_param->iface_num & 0x1) 2438 break; 2439 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2440 init_fw_cb->ipv4_ip_opts |= 2441 cpu_to_le16(IPOPT_LEARN_IQN_EN); 2442 else 2443 init_fw_cb->ipv4_ip_opts &= 2444 cpu_to_le16(~IPOPT_LEARN_IQN_EN); 2445 break; 2446 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 2447 if (iface_param->iface_num & 0x1) 2448 break; 2449 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2450 init_fw_cb->ipv4_ip_opts |= 2451 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); 2452 else 2453 init_fw_cb->ipv4_ip_opts &= 2454 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); 2455 break; 2456 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 2457 if (iface_param->iface_num & 0x1) 2458 break; 2459 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2460 init_fw_cb->ipv4_ip_opts |= 2461 cpu_to_le16(IPOPT_IN_FORWARD_EN); 2462 else 2463 init_fw_cb->ipv4_ip_opts &= 2464 cpu_to_le16(~IPOPT_IN_FORWARD_EN); 2465 break; 2466 case ISCSI_NET_PARAM_REDIRECT_EN: 2467 if (iface_param->iface_num & 0x1) 2468 break; 2469 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2470 init_fw_cb->ipv4_ip_opts |= 2471 cpu_to_le16(IPOPT_ARP_REDIRECT_EN); 2472 else 2473 init_fw_cb->ipv4_ip_opts &= 2474 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); 2475 break; 2476 case ISCSI_NET_PARAM_IPV4_TTL: 2477 if (iface_param->iface_num & 0x1) 2478 break; 2479 init_fw_cb->ipv4_ttl = iface_param->value[0]; 2480 break; 2481 default: 2482 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 2483 iface_param->param); 2484 break; 2485 } 2486 } 2487 2488 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, 2489 struct iscsi_iface_param_info *iface_param, 2490 struct addr_ctrl_blk *init_fw_cb) 2491 { 2492 switch (iface_param->param) { 2493 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 2494 if (iface_param->iface_num & 0x1) 2495 break; 2496 init_fw_cb->def_timeout = 2497 cpu_to_le16(*(uint16_t *)iface_param->value); 2498 break; 2499 case ISCSI_IFACE_PARAM_HDRDGST_EN: 2500 if (iface_param->iface_num & 0x1) 2501 break; 2502 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2503 init_fw_cb->iscsi_opts |= 2504 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); 2505 else 2506 init_fw_cb->iscsi_opts &= 2507 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); 2508 break; 2509 case ISCSI_IFACE_PARAM_DATADGST_EN: 2510 if (iface_param->iface_num & 0x1) 2511 break; 2512 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2513 init_fw_cb->iscsi_opts |= 2514 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); 2515 else 2516 init_fw_cb->iscsi_opts &= 2517 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); 2518 break; 2519 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 2520 if (iface_param->iface_num & 0x1) 2521 break; 2522 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2523 init_fw_cb->iscsi_opts |= 2524 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); 2525 else 2526 init_fw_cb->iscsi_opts &= 2527 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); 2528 break; 2529 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 2530 if (iface_param->iface_num & 0x1) 2531 break; 2532 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2533 init_fw_cb->iscsi_opts |= 2534 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); 2535 else 2536 init_fw_cb->iscsi_opts &= 2537 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); 2538 break; 2539 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 2540 if (iface_param->iface_num & 0x1) 2541 break; 2542 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2543 init_fw_cb->iscsi_opts |= 2544 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); 2545 else 2546 init_fw_cb->iscsi_opts &= 2547 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); 2548 break; 2549 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 2550 if (iface_param->iface_num & 0x1) 2551 break; 2552 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2553 init_fw_cb->iscsi_opts |= 2554 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); 2555 else 2556 init_fw_cb->iscsi_opts &= 2557 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); 2558 break; 2559 case ISCSI_IFACE_PARAM_ERL: 2560 if (iface_param->iface_num & 0x1) 2561 break; 2562 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); 2563 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & 2564 ISCSIOPTS_ERL); 2565 break; 2566 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 2567 if (iface_param->iface_num & 0x1) 2568 break; 2569 init_fw_cb->iscsi_max_pdu_size = 2570 cpu_to_le32(*(uint32_t *)iface_param->value) / 2571 BYTE_UNITS; 2572 break; 2573 case ISCSI_IFACE_PARAM_FIRST_BURST: 2574 if (iface_param->iface_num & 0x1) 2575 break; 2576 init_fw_cb->iscsi_fburst_len = 2577 cpu_to_le32(*(uint32_t *)iface_param->value) / 2578 BYTE_UNITS; 2579 break; 2580 case ISCSI_IFACE_PARAM_MAX_R2T: 2581 if (iface_param->iface_num & 0x1) 2582 break; 2583 init_fw_cb->iscsi_max_outstnd_r2t = 2584 cpu_to_le16(*(uint16_t *)iface_param->value); 2585 break; 2586 case ISCSI_IFACE_PARAM_MAX_BURST: 2587 if (iface_param->iface_num & 0x1) 2588 break; 2589 init_fw_cb->iscsi_max_burst_len = 2590 cpu_to_le32(*(uint32_t *)iface_param->value) / 2591 BYTE_UNITS; 2592 break; 2593 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 2594 if (iface_param->iface_num & 0x1) 2595 break; 2596 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2597 init_fw_cb->iscsi_opts |= 2598 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); 2599 else 2600 init_fw_cb->iscsi_opts &= 2601 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); 2602 break; 2603 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 2604 if (iface_param->iface_num & 0x1) 2605 break; 2606 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2607 init_fw_cb->iscsi_opts |= 2608 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); 2609 else 2610 init_fw_cb->iscsi_opts &= 2611 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); 2612 break; 2613 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 2614 if (iface_param->iface_num & 0x1) 2615 break; 2616 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2617 init_fw_cb->iscsi_opts |= 2618 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); 2619 else 2620 init_fw_cb->iscsi_opts &= 2621 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); 2622 break; 2623 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 2624 if (iface_param->iface_num & 0x1) 2625 break; 2626 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2627 init_fw_cb->iscsi_opts |= 2628 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2629 else 2630 init_fw_cb->iscsi_opts &= 2631 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2632 break; 2633 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 2634 if (iface_param->iface_num & 0x1) 2635 break; 2636 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2637 init_fw_cb->iscsi_opts |= 2638 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2639 else 2640 init_fw_cb->iscsi_opts &= 2641 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2642 break; 2643 default: 2644 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", 2645 iface_param->param); 2646 break; 2647 } 2648 } 2649 2650 static void 2651 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 2652 { 2653 struct addr_ctrl_blk_def *acb; 2654 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 2655 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 2656 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 2657 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 2658 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 2659 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 2660 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 2661 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 2662 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 2663 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 2664 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 2665 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 2666 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 2667 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 2668 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 2669 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 2670 } 2671 2672 static int 2673 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 2674 { 2675 struct scsi_qla_host *ha = to_qla_host(shost); 2676 int rval = 0; 2677 struct iscsi_iface_param_info *iface_param = NULL; 2678 struct addr_ctrl_blk *init_fw_cb = NULL; 2679 dma_addr_t init_fw_cb_dma; 2680 uint32_t mbox_cmd[MBOX_REG_COUNT]; 2681 uint32_t mbox_sts[MBOX_REG_COUNT]; 2682 uint32_t rem = len; 2683 struct nlattr *attr; 2684 2685 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 2686 sizeof(struct addr_ctrl_blk), 2687 &init_fw_cb_dma, GFP_KERNEL); 2688 if (!init_fw_cb) { 2689 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 2690 __func__); 2691 return -ENOMEM; 2692 } 2693 2694 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2695 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 2696 memset(&mbox_sts, 0, sizeof(mbox_sts)); 2697 2698 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 2699 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 2700 rval = -EIO; 2701 goto exit_init_fw_cb; 2702 } 2703 2704 nla_for_each_attr(attr, data, len, rem) { 2705 iface_param = nla_data(attr); 2706 2707 if (iface_param->param_type == ISCSI_NET_PARAM) { 2708 switch (iface_param->iface_type) { 2709 case ISCSI_IFACE_TYPE_IPV4: 2710 switch (iface_param->iface_num) { 2711 case 0: 2712 qla4xxx_set_ipv4(ha, iface_param, 2713 init_fw_cb); 2714 break; 2715 default: 2716 /* Cannot have more than one IPv4 interface */ 2717 ql4_printk(KERN_ERR, ha, 2718 "Invalid IPv4 iface number = %d\n", 2719 iface_param->iface_num); 2720 break; 2721 } 2722 break; 2723 case ISCSI_IFACE_TYPE_IPV6: 2724 switch (iface_param->iface_num) { 2725 case 0: 2726 case 1: 2727 qla4xxx_set_ipv6(ha, iface_param, 2728 init_fw_cb); 2729 break; 2730 default: 2731 /* Cannot have more than two IPv6 interface */ 2732 ql4_printk(KERN_ERR, ha, 2733 "Invalid IPv6 iface number = %d\n", 2734 iface_param->iface_num); 2735 break; 2736 } 2737 break; 2738 default: 2739 ql4_printk(KERN_ERR, ha, 2740 "Invalid iface type\n"); 2741 break; 2742 } 2743 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { 2744 qla4xxx_set_iscsi_param(ha, iface_param, 2745 init_fw_cb); 2746 } else { 2747 continue; 2748 } 2749 } 2750 2751 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 2752 2753 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 2754 sizeof(struct addr_ctrl_blk), 2755 FLASH_OPT_RMW_COMMIT); 2756 if (rval != QLA_SUCCESS) { 2757 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 2758 __func__); 2759 rval = -EIO; 2760 goto exit_init_fw_cb; 2761 } 2762 2763 rval = qla4xxx_disable_acb(ha); 2764 if (rval != QLA_SUCCESS) { 2765 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 2766 __func__); 2767 rval = -EIO; 2768 goto exit_init_fw_cb; 2769 } 2770 2771 wait_for_completion_timeout(&ha->disable_acb_comp, 2772 DISABLE_ACB_TOV * HZ); 2773 2774 qla4xxx_initcb_to_acb(init_fw_cb); 2775 2776 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 2777 if (rval != QLA_SUCCESS) { 2778 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 2779 __func__); 2780 rval = -EIO; 2781 goto exit_init_fw_cb; 2782 } 2783 2784 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2785 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 2786 init_fw_cb_dma); 2787 2788 exit_init_fw_cb: 2789 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 2790 init_fw_cb, init_fw_cb_dma); 2791 2792 return rval; 2793 } 2794 2795 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 2796 enum iscsi_param param, char *buf) 2797 { 2798 struct iscsi_session *sess = cls_sess->dd_data; 2799 struct ddb_entry *ddb_entry = sess->dd_data; 2800 struct scsi_qla_host *ha = ddb_entry->ha; 2801 struct iscsi_cls_conn *cls_conn = ddb_entry->conn; 2802 struct ql4_chap_table chap_tbl; 2803 int rval, len; 2804 uint16_t idx; 2805 2806 memset(&chap_tbl, 0, sizeof(chap_tbl)); 2807 switch (param) { 2808 case ISCSI_PARAM_CHAP_IN_IDX: 2809 rval = qla4xxx_get_chap_index(ha, sess->username_in, 2810 sess->password_in, BIDI_CHAP, 2811 &idx); 2812 if (rval) 2813 len = sprintf(buf, "\n"); 2814 else 2815 len = sprintf(buf, "%hu\n", idx); 2816 break; 2817 case ISCSI_PARAM_CHAP_OUT_IDX: 2818 if (ddb_entry->ddb_type == FLASH_DDB) { 2819 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 2820 idx = ddb_entry->chap_tbl_idx; 2821 rval = QLA_SUCCESS; 2822 } else { 2823 rval = QLA_ERROR; 2824 } 2825 } else { 2826 rval = qla4xxx_get_chap_index(ha, sess->username, 2827 sess->password, 2828 LOCAL_CHAP, &idx); 2829 } 2830 if (rval) 2831 len = sprintf(buf, "\n"); 2832 else 2833 len = sprintf(buf, "%hu\n", idx); 2834 break; 2835 case ISCSI_PARAM_USERNAME: 2836 case ISCSI_PARAM_PASSWORD: 2837 /* First, populate session username and password for FLASH DDB, 2838 * if not already done. This happens when session login fails 2839 * for a FLASH DDB. 2840 */ 2841 if (ddb_entry->ddb_type == FLASH_DDB && 2842 ddb_entry->chap_tbl_idx != INVALID_ENTRY && 2843 !sess->username && !sess->password) { 2844 idx = ddb_entry->chap_tbl_idx; 2845 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 2846 chap_tbl.secret, 2847 idx); 2848 if (!rval) { 2849 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 2850 (char *)chap_tbl.name, 2851 strlen((char *)chap_tbl.name)); 2852 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 2853 (char *)chap_tbl.secret, 2854 chap_tbl.secret_len); 2855 } 2856 } 2857 /* allow fall-through */ 2858 default: 2859 return iscsi_session_get_param(cls_sess, param, buf); 2860 } 2861 2862 return len; 2863 } 2864 2865 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 2866 enum iscsi_param param, char *buf) 2867 { 2868 struct iscsi_conn *conn; 2869 struct qla_conn *qla_conn; 2870 struct sockaddr *dst_addr; 2871 int len = 0; 2872 2873 conn = cls_conn->dd_data; 2874 qla_conn = conn->dd_data; 2875 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 2876 2877 switch (param) { 2878 case ISCSI_PARAM_CONN_PORT: 2879 case ISCSI_PARAM_CONN_ADDRESS: 2880 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 2881 dst_addr, param, buf); 2882 default: 2883 return iscsi_conn_get_param(cls_conn, param, buf); 2884 } 2885 2886 return len; 2887 2888 } 2889 2890 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 2891 { 2892 uint32_t mbx_sts = 0; 2893 uint16_t tmp_ddb_index; 2894 int ret; 2895 2896 get_ddb_index: 2897 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 2898 2899 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 2900 DEBUG2(ql4_printk(KERN_INFO, ha, 2901 "Free DDB index not available\n")); 2902 ret = QLA_ERROR; 2903 goto exit_get_ddb_index; 2904 } 2905 2906 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 2907 goto get_ddb_index; 2908 2909 DEBUG2(ql4_printk(KERN_INFO, ha, 2910 "Found a free DDB index at %d\n", tmp_ddb_index)); 2911 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 2912 if (ret == QLA_ERROR) { 2913 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 2914 ql4_printk(KERN_INFO, ha, 2915 "DDB index = %d not available trying next\n", 2916 tmp_ddb_index); 2917 goto get_ddb_index; 2918 } 2919 DEBUG2(ql4_printk(KERN_INFO, ha, 2920 "Free FW DDB not available\n")); 2921 } 2922 2923 *ddb_index = tmp_ddb_index; 2924 2925 exit_get_ddb_index: 2926 return ret; 2927 } 2928 2929 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 2930 struct ddb_entry *ddb_entry, 2931 char *existing_ipaddr, 2932 char *user_ipaddr) 2933 { 2934 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 2935 char formatted_ipaddr[DDB_IPADDR_LEN]; 2936 int status = QLA_SUCCESS, ret = 0; 2937 2938 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 2939 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2940 '\0', NULL); 2941 if (ret == 0) { 2942 status = QLA_ERROR; 2943 goto out_match; 2944 } 2945 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 2946 } else { 2947 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2948 '\0', NULL); 2949 if (ret == 0) { 2950 status = QLA_ERROR; 2951 goto out_match; 2952 } 2953 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 2954 } 2955 2956 if (strcmp(existing_ipaddr, formatted_ipaddr)) 2957 status = QLA_ERROR; 2958 2959 out_match: 2960 return status; 2961 } 2962 2963 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 2964 struct iscsi_cls_conn *cls_conn) 2965 { 2966 int idx = 0, max_ddbs, rval; 2967 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 2968 struct iscsi_session *sess, *existing_sess; 2969 struct iscsi_conn *conn, *existing_conn; 2970 struct ddb_entry *ddb_entry; 2971 2972 sess = cls_sess->dd_data; 2973 conn = cls_conn->dd_data; 2974 2975 if (sess->targetname == NULL || 2976 conn->persistent_address == NULL || 2977 conn->persistent_port == 0) 2978 return QLA_ERROR; 2979 2980 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 2981 MAX_DEV_DB_ENTRIES; 2982 2983 for (idx = 0; idx < max_ddbs; idx++) { 2984 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 2985 if (ddb_entry == NULL) 2986 continue; 2987 2988 if (ddb_entry->ddb_type != FLASH_DDB) 2989 continue; 2990 2991 existing_sess = ddb_entry->sess->dd_data; 2992 existing_conn = ddb_entry->conn->dd_data; 2993 2994 if (existing_sess->targetname == NULL || 2995 existing_conn->persistent_address == NULL || 2996 existing_conn->persistent_port == 0) 2997 continue; 2998 2999 DEBUG2(ql4_printk(KERN_INFO, ha, 3000 "IQN = %s User IQN = %s\n", 3001 existing_sess->targetname, 3002 sess->targetname)); 3003 3004 DEBUG2(ql4_printk(KERN_INFO, ha, 3005 "IP = %s User IP = %s\n", 3006 existing_conn->persistent_address, 3007 conn->persistent_address)); 3008 3009 DEBUG2(ql4_printk(KERN_INFO, ha, 3010 "Port = %d User Port = %d\n", 3011 existing_conn->persistent_port, 3012 conn->persistent_port)); 3013 3014 if (strcmp(existing_sess->targetname, sess->targetname)) 3015 continue; 3016 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 3017 existing_conn->persistent_address, 3018 conn->persistent_address); 3019 if (rval == QLA_ERROR) 3020 continue; 3021 if (existing_conn->persistent_port != conn->persistent_port) 3022 continue; 3023 break; 3024 } 3025 3026 if (idx == max_ddbs) 3027 return QLA_ERROR; 3028 3029 DEBUG2(ql4_printk(KERN_INFO, ha, 3030 "Match found in fwdb sessions\n")); 3031 return QLA_SUCCESS; 3032 } 3033 3034 static struct iscsi_cls_session * 3035 qla4xxx_session_create(struct iscsi_endpoint *ep, 3036 uint16_t cmds_max, uint16_t qdepth, 3037 uint32_t initial_cmdsn) 3038 { 3039 struct iscsi_cls_session *cls_sess; 3040 struct scsi_qla_host *ha; 3041 struct qla_endpoint *qla_ep; 3042 struct ddb_entry *ddb_entry; 3043 uint16_t ddb_index; 3044 struct iscsi_session *sess; 3045 struct sockaddr *dst_addr; 3046 int ret; 3047 3048 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 3049 if (!ep) { 3050 printk(KERN_ERR "qla4xxx: missing ep.\n"); 3051 return NULL; 3052 } 3053 3054 qla_ep = ep->dd_data; 3055 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 3056 ha = to_qla_host(qla_ep->host); 3057 3058 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 3059 if (ret == QLA_ERROR) 3060 return NULL; 3061 3062 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 3063 cmds_max, sizeof(struct ddb_entry), 3064 sizeof(struct ql4_task_data), 3065 initial_cmdsn, ddb_index); 3066 if (!cls_sess) 3067 return NULL; 3068 3069 sess = cls_sess->dd_data; 3070 ddb_entry = sess->dd_data; 3071 ddb_entry->fw_ddb_index = ddb_index; 3072 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 3073 ddb_entry->ha = ha; 3074 ddb_entry->sess = cls_sess; 3075 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 3076 ddb_entry->ddb_change = qla4xxx_ddb_change; 3077 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); 3078 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 3079 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 3080 ha->tot_ddbs++; 3081 3082 return cls_sess; 3083 } 3084 3085 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 3086 { 3087 struct iscsi_session *sess; 3088 struct ddb_entry *ddb_entry; 3089 struct scsi_qla_host *ha; 3090 unsigned long flags, wtime; 3091 struct dev_db_entry *fw_ddb_entry = NULL; 3092 dma_addr_t fw_ddb_entry_dma; 3093 uint32_t ddb_state; 3094 int ret; 3095 3096 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 3097 sess = cls_sess->dd_data; 3098 ddb_entry = sess->dd_data; 3099 ha = ddb_entry->ha; 3100 3101 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3102 &fw_ddb_entry_dma, GFP_KERNEL); 3103 if (!fw_ddb_entry) { 3104 ql4_printk(KERN_ERR, ha, 3105 "%s: Unable to allocate dma buffer\n", __func__); 3106 goto destroy_session; 3107 } 3108 3109 wtime = jiffies + (HZ * LOGOUT_TOV); 3110 do { 3111 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 3112 fw_ddb_entry, fw_ddb_entry_dma, 3113 NULL, NULL, &ddb_state, NULL, 3114 NULL, NULL); 3115 if (ret == QLA_ERROR) 3116 goto destroy_session; 3117 3118 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 3119 (ddb_state == DDB_DS_SESSION_FAILED)) 3120 goto destroy_session; 3121 3122 schedule_timeout_uninterruptible(HZ); 3123 } while ((time_after(wtime, jiffies))); 3124 3125 destroy_session: 3126 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 3127 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) 3128 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 3129 spin_lock_irqsave(&ha->hardware_lock, flags); 3130 qla4xxx_free_ddb(ha, ddb_entry); 3131 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3132 3133 iscsi_session_teardown(cls_sess); 3134 3135 if (fw_ddb_entry) 3136 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3137 fw_ddb_entry, fw_ddb_entry_dma); 3138 } 3139 3140 static struct iscsi_cls_conn * 3141 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 3142 { 3143 struct iscsi_cls_conn *cls_conn; 3144 struct iscsi_session *sess; 3145 struct ddb_entry *ddb_entry; 3146 3147 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 3148 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 3149 conn_idx); 3150 if (!cls_conn) 3151 return NULL; 3152 3153 sess = cls_sess->dd_data; 3154 ddb_entry = sess->dd_data; 3155 ddb_entry->conn = cls_conn; 3156 3157 return cls_conn; 3158 } 3159 3160 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 3161 struct iscsi_cls_conn *cls_conn, 3162 uint64_t transport_fd, int is_leading) 3163 { 3164 struct iscsi_conn *conn; 3165 struct qla_conn *qla_conn; 3166 struct iscsi_endpoint *ep; 3167 3168 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 3169 3170 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 3171 return -EINVAL; 3172 ep = iscsi_lookup_endpoint(transport_fd); 3173 conn = cls_conn->dd_data; 3174 qla_conn = conn->dd_data; 3175 qla_conn->qla_ep = ep->dd_data; 3176 return 0; 3177 } 3178 3179 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3180 { 3181 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3182 struct iscsi_session *sess; 3183 struct ddb_entry *ddb_entry; 3184 struct scsi_qla_host *ha; 3185 struct dev_db_entry *fw_ddb_entry = NULL; 3186 dma_addr_t fw_ddb_entry_dma; 3187 uint32_t mbx_sts = 0; 3188 int ret = 0; 3189 int status = QLA_SUCCESS; 3190 3191 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 3192 sess = cls_sess->dd_data; 3193 ddb_entry = sess->dd_data; 3194 ha = ddb_entry->ha; 3195 3196 /* Check if we have matching FW DDB, if yes then do not 3197 * login to this target. This could cause target to logout previous 3198 * connection 3199 */ 3200 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3201 if (ret == QLA_SUCCESS) { 3202 ql4_printk(KERN_INFO, ha, 3203 "Session already exist in FW.\n"); 3204 ret = -EEXIST; 3205 goto exit_conn_start; 3206 } 3207 3208 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3209 &fw_ddb_entry_dma, GFP_KERNEL); 3210 if (!fw_ddb_entry) { 3211 ql4_printk(KERN_ERR, ha, 3212 "%s: Unable to allocate dma buffer\n", __func__); 3213 ret = -ENOMEM; 3214 goto exit_conn_start; 3215 } 3216 3217 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3218 if (ret) { 3219 /* If iscsid is stopped and started then no need to do 3220 * set param again since ddb state will be already 3221 * active and FW does not allow set ddb to an 3222 * active session. 3223 */ 3224 if (mbx_sts) 3225 if (ddb_entry->fw_ddb_device_state == 3226 DDB_DS_SESSION_ACTIVE) { 3227 ddb_entry->unblock_sess(ddb_entry->sess); 3228 goto exit_set_param; 3229 } 3230 3231 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3232 __func__, ddb_entry->fw_ddb_index); 3233 goto exit_conn_start; 3234 } 3235 3236 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3237 if (status == QLA_ERROR) { 3238 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3239 sess->targetname); 3240 ret = -EINVAL; 3241 goto exit_conn_start; 3242 } 3243 3244 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3245 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3246 3247 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3248 ddb_entry->fw_ddb_device_state)); 3249 3250 exit_set_param: 3251 ret = 0; 3252 3253 exit_conn_start: 3254 if (fw_ddb_entry) 3255 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3256 fw_ddb_entry, fw_ddb_entry_dma); 3257 return ret; 3258 } 3259 3260 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3261 { 3262 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3263 struct iscsi_session *sess; 3264 struct scsi_qla_host *ha; 3265 struct ddb_entry *ddb_entry; 3266 int options; 3267 3268 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 3269 sess = cls_sess->dd_data; 3270 ddb_entry = sess->dd_data; 3271 ha = ddb_entry->ha; 3272 3273 options = LOGOUT_OPTION_CLOSE_SESSION; 3274 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3275 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3276 } 3277 3278 static void qla4xxx_task_work(struct work_struct *wdata) 3279 { 3280 struct ql4_task_data *task_data; 3281 struct scsi_qla_host *ha; 3282 struct passthru_status *sts; 3283 struct iscsi_task *task; 3284 struct iscsi_hdr *hdr; 3285 uint8_t *data; 3286 uint32_t data_len; 3287 struct iscsi_conn *conn; 3288 int hdr_len; 3289 itt_t itt; 3290 3291 task_data = container_of(wdata, struct ql4_task_data, task_work); 3292 ha = task_data->ha; 3293 task = task_data->task; 3294 sts = &task_data->sts; 3295 hdr_len = sizeof(struct iscsi_hdr); 3296 3297 DEBUG3(printk(KERN_INFO "Status returned\n")); 3298 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3299 DEBUG3(printk(KERN_INFO "Response buffer")); 3300 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3301 3302 conn = task->conn; 3303 3304 switch (sts->completionStatus) { 3305 case PASSTHRU_STATUS_COMPLETE: 3306 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3307 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3308 itt = sts->handle; 3309 hdr->itt = itt; 3310 data = task_data->resp_buffer + hdr_len; 3311 data_len = task_data->resp_len - hdr_len; 3312 iscsi_complete_pdu(conn, hdr, data, data_len); 3313 break; 3314 default: 3315 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3316 sts->completionStatus); 3317 break; 3318 } 3319 return; 3320 } 3321 3322 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3323 { 3324 struct ql4_task_data *task_data; 3325 struct iscsi_session *sess; 3326 struct ddb_entry *ddb_entry; 3327 struct scsi_qla_host *ha; 3328 int hdr_len; 3329 3330 sess = task->conn->session; 3331 ddb_entry = sess->dd_data; 3332 ha = ddb_entry->ha; 3333 task_data = task->dd_data; 3334 memset(task_data, 0, sizeof(struct ql4_task_data)); 3335 3336 if (task->sc) { 3337 ql4_printk(KERN_INFO, ha, 3338 "%s: SCSI Commands not implemented\n", __func__); 3339 return -EINVAL; 3340 } 3341 3342 hdr_len = sizeof(struct iscsi_hdr); 3343 task_data->ha = ha; 3344 task_data->task = task; 3345 3346 if (task->data_count) { 3347 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3348 task->data_count, 3349 PCI_DMA_TODEVICE); 3350 } 3351 3352 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3353 __func__, task->conn->max_recv_dlength, hdr_len)); 3354 3355 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3356 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3357 task_data->resp_len, 3358 &task_data->resp_dma, 3359 GFP_ATOMIC); 3360 if (!task_data->resp_buffer) 3361 goto exit_alloc_pdu; 3362 3363 task_data->req_len = task->data_count + hdr_len; 3364 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3365 task_data->req_len, 3366 &task_data->req_dma, 3367 GFP_ATOMIC); 3368 if (!task_data->req_buffer) 3369 goto exit_alloc_pdu; 3370 3371 task->hdr = task_data->req_buffer; 3372 3373 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3374 3375 return 0; 3376 3377 exit_alloc_pdu: 3378 if (task_data->resp_buffer) 3379 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3380 task_data->resp_buffer, task_data->resp_dma); 3381 3382 if (task_data->req_buffer) 3383 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3384 task_data->req_buffer, task_data->req_dma); 3385 return -ENOMEM; 3386 } 3387 3388 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3389 { 3390 struct ql4_task_data *task_data; 3391 struct iscsi_session *sess; 3392 struct ddb_entry *ddb_entry; 3393 struct scsi_qla_host *ha; 3394 int hdr_len; 3395 3396 hdr_len = sizeof(struct iscsi_hdr); 3397 sess = task->conn->session; 3398 ddb_entry = sess->dd_data; 3399 ha = ddb_entry->ha; 3400 task_data = task->dd_data; 3401 3402 if (task->data_count) { 3403 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3404 task->data_count, PCI_DMA_TODEVICE); 3405 } 3406 3407 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3408 __func__, task->conn->max_recv_dlength, hdr_len)); 3409 3410 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3411 task_data->resp_buffer, task_data->resp_dma); 3412 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3413 task_data->req_buffer, task_data->req_dma); 3414 return; 3415 } 3416 3417 static int qla4xxx_task_xmit(struct iscsi_task *task) 3418 { 3419 struct scsi_cmnd *sc = task->sc; 3420 struct iscsi_session *sess = task->conn->session; 3421 struct ddb_entry *ddb_entry = sess->dd_data; 3422 struct scsi_qla_host *ha = ddb_entry->ha; 3423 3424 if (!sc) 3425 return qla4xxx_send_passthru0(task); 3426 3427 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3428 __func__); 3429 return -ENOSYS; 3430 } 3431 3432 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3433 struct iscsi_bus_flash_conn *conn, 3434 struct dev_db_entry *fw_ddb_entry) 3435 { 3436 unsigned long options = 0; 3437 int rc = 0; 3438 3439 options = le16_to_cpu(fw_ddb_entry->options); 3440 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3441 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3442 rc = iscsi_switch_str_param(&sess->portal_type, 3443 PORTAL_TYPE_IPV6); 3444 if (rc) 3445 goto exit_copy; 3446 } else { 3447 rc = iscsi_switch_str_param(&sess->portal_type, 3448 PORTAL_TYPE_IPV4); 3449 if (rc) 3450 goto exit_copy; 3451 } 3452 3453 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3454 &options); 3455 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3456 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3457 3458 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3459 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3460 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3461 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3462 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3463 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3464 &options); 3465 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3466 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3467 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3468 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3469 &options); 3470 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3471 sess->discovery_auth_optional = 3472 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3473 if (test_bit(ISCSIOPT_ERL1, &options)) 3474 sess->erl |= BIT_1; 3475 if (test_bit(ISCSIOPT_ERL0, &options)) 3476 sess->erl |= BIT_0; 3477 3478 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3479 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3480 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3481 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3482 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3483 conn->tcp_timer_scale |= BIT_3; 3484 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3485 conn->tcp_timer_scale |= BIT_2; 3486 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3487 conn->tcp_timer_scale |= BIT_1; 3488 3489 conn->tcp_timer_scale >>= 1; 3490 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3491 3492 options = le16_to_cpu(fw_ddb_entry->ip_options); 3493 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3494 3495 conn->max_recv_dlength = BYTE_UNITS * 3496 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3497 conn->max_xmit_dlength = BYTE_UNITS * 3498 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3499 sess->first_burst = BYTE_UNITS * 3500 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3501 sess->max_burst = BYTE_UNITS * 3502 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3503 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3504 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3505 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3506 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3507 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3508 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3509 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3510 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3511 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3512 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3513 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3514 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3515 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3516 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3517 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3518 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3519 3520 sess->default_taskmgmt_timeout = 3521 le16_to_cpu(fw_ddb_entry->def_timeout); 3522 conn->port = le16_to_cpu(fw_ddb_entry->port); 3523 3524 options = le16_to_cpu(fw_ddb_entry->options); 3525 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3526 if (!conn->ipaddress) { 3527 rc = -ENOMEM; 3528 goto exit_copy; 3529 } 3530 3531 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3532 if (!conn->redirect_ipaddr) { 3533 rc = -ENOMEM; 3534 goto exit_copy; 3535 } 3536 3537 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3538 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3539 3540 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3541 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3542 3543 conn->link_local_ipv6_addr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3544 if (!conn->link_local_ipv6_addr) { 3545 rc = -ENOMEM; 3546 goto exit_copy; 3547 } 3548 3549 memcpy(conn->link_local_ipv6_addr, 3550 fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN); 3551 } else { 3552 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3553 } 3554 3555 if (fw_ddb_entry->iscsi_name[0]) { 3556 rc = iscsi_switch_str_param(&sess->targetname, 3557 (char *)fw_ddb_entry->iscsi_name); 3558 if (rc) 3559 goto exit_copy; 3560 } 3561 3562 if (fw_ddb_entry->iscsi_alias[0]) { 3563 rc = iscsi_switch_str_param(&sess->targetalias, 3564 (char *)fw_ddb_entry->iscsi_alias); 3565 if (rc) 3566 goto exit_copy; 3567 } 3568 3569 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3570 3571 exit_copy: 3572 return rc; 3573 } 3574 3575 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3576 struct iscsi_bus_flash_conn *conn, 3577 struct dev_db_entry *fw_ddb_entry) 3578 { 3579 uint16_t options; 3580 int rc = 0; 3581 3582 options = le16_to_cpu(fw_ddb_entry->options); 3583 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3584 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3585 options |= BIT_8; 3586 else 3587 options &= ~BIT_8; 3588 3589 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3590 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3591 SET_BITVAL(sess->entry_state, options, BIT_3); 3592 fw_ddb_entry->options = cpu_to_le16(options); 3593 3594 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3595 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3596 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3597 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3598 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3599 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3600 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3601 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3602 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3603 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3604 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3605 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3606 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3607 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3608 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3609 3610 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3611 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3612 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3613 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3614 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3615 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3616 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3617 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3618 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3619 3620 options = le16_to_cpu(fw_ddb_entry->ip_options); 3621 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3622 fw_ddb_entry->ip_options = cpu_to_le16(options); 3623 3624 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3625 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3626 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3627 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3628 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3629 fw_ddb_entry->iscsi_first_burst_len = 3630 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3631 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3632 BYTE_UNITS); 3633 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3634 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3635 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3636 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3637 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3638 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3639 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3640 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3641 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3642 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3643 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3644 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3645 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3646 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3647 fw_ddb_entry->port = cpu_to_le16(conn->port); 3648 fw_ddb_entry->def_timeout = 3649 cpu_to_le16(sess->default_taskmgmt_timeout); 3650 3651 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3652 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3653 else 3654 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3655 3656 if (conn->ipaddress) 3657 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3658 sizeof(fw_ddb_entry->ip_addr)); 3659 3660 if (conn->redirect_ipaddr) 3661 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3662 sizeof(fw_ddb_entry->tgt_addr)); 3663 3664 if (conn->link_local_ipv6_addr) 3665 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3666 conn->link_local_ipv6_addr, 3667 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3668 3669 if (sess->targetname) 3670 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3671 sizeof(fw_ddb_entry->iscsi_name)); 3672 3673 if (sess->targetalias) 3674 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3675 sizeof(fw_ddb_entry->iscsi_alias)); 3676 3677 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3678 3679 return rc; 3680 } 3681 3682 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3683 struct iscsi_session *sess, 3684 struct dev_db_entry *fw_ddb_entry) 3685 { 3686 unsigned long options = 0; 3687 uint16_t ddb_link; 3688 uint16_t disc_parent; 3689 char ip_addr[DDB_IPADDR_LEN]; 3690 3691 options = le16_to_cpu(fw_ddb_entry->options); 3692 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3693 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3694 &options); 3695 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3696 3697 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3698 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3699 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3700 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3701 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3702 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3703 &options); 3704 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3705 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3706 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3707 &options); 3708 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3709 sess->discovery_auth_optional = 3710 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3711 if (test_bit(ISCSIOPT_ERL1, &options)) 3712 sess->erl |= BIT_1; 3713 if (test_bit(ISCSIOPT_ERL0, &options)) 3714 sess->erl |= BIT_0; 3715 3716 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3717 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3718 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3719 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3720 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3721 conn->tcp_timer_scale |= BIT_3; 3722 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3723 conn->tcp_timer_scale |= BIT_2; 3724 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3725 conn->tcp_timer_scale |= BIT_1; 3726 3727 conn->tcp_timer_scale >>= 1; 3728 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3729 3730 options = le16_to_cpu(fw_ddb_entry->ip_options); 3731 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3732 3733 conn->max_recv_dlength = BYTE_UNITS * 3734 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3735 conn->max_xmit_dlength = BYTE_UNITS * 3736 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3737 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3738 sess->first_burst = BYTE_UNITS * 3739 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3740 sess->max_burst = BYTE_UNITS * 3741 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3742 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3743 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3744 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3745 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3746 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3747 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3748 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3749 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3750 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3751 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3752 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3753 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3754 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3755 3756 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3757 if (ddb_link == DDB_ISNS) 3758 disc_parent = ISCSI_DISC_PARENT_ISNS; 3759 else if (ddb_link == DDB_NO_LINK) 3760 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3761 else if (ddb_link < MAX_DDB_ENTRIES) 3762 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3763 else 3764 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3765 3766 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3767 iscsi_get_discovery_parent_name(disc_parent), 0); 3768 3769 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3770 (char *)fw_ddb_entry->iscsi_alias, 0); 3771 3772 options = le16_to_cpu(fw_ddb_entry->options); 3773 if (options & DDB_OPT_IPV6_DEVICE) { 3774 memset(ip_addr, 0, sizeof(ip_addr)); 3775 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3776 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3777 (char *)ip_addr, 0); 3778 } 3779 } 3780 3781 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3782 struct dev_db_entry *fw_ddb_entry, 3783 struct iscsi_cls_session *cls_sess, 3784 struct iscsi_cls_conn *cls_conn) 3785 { 3786 int buflen = 0; 3787 struct iscsi_session *sess; 3788 struct ddb_entry *ddb_entry; 3789 struct ql4_chap_table chap_tbl; 3790 struct iscsi_conn *conn; 3791 char ip_addr[DDB_IPADDR_LEN]; 3792 uint16_t options = 0; 3793 3794 sess = cls_sess->dd_data; 3795 ddb_entry = sess->dd_data; 3796 conn = cls_conn->dd_data; 3797 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3798 3799 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3800 3801 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3802 3803 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3804 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3805 3806 memset(ip_addr, 0, sizeof(ip_addr)); 3807 options = le16_to_cpu(fw_ddb_entry->options); 3808 if (options & DDB_OPT_IPV6_DEVICE) { 3809 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3810 3811 memset(ip_addr, 0, sizeof(ip_addr)); 3812 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3813 } else { 3814 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3815 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3816 } 3817 3818 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3819 (char *)ip_addr, buflen); 3820 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3821 (char *)fw_ddb_entry->iscsi_name, buflen); 3822 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3823 (char *)ha->name_string, buflen); 3824 3825 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3826 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3827 chap_tbl.secret, 3828 ddb_entry->chap_tbl_idx)) { 3829 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3830 (char *)chap_tbl.name, 3831 strlen((char *)chap_tbl.name)); 3832 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3833 (char *)chap_tbl.secret, 3834 chap_tbl.secret_len); 3835 } 3836 } 3837 } 3838 3839 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3840 struct ddb_entry *ddb_entry) 3841 { 3842 struct iscsi_cls_session *cls_sess; 3843 struct iscsi_cls_conn *cls_conn; 3844 uint32_t ddb_state; 3845 dma_addr_t fw_ddb_entry_dma; 3846 struct dev_db_entry *fw_ddb_entry; 3847 3848 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3849 &fw_ddb_entry_dma, GFP_KERNEL); 3850 if (!fw_ddb_entry) { 3851 ql4_printk(KERN_ERR, ha, 3852 "%s: Unable to allocate dma buffer\n", __func__); 3853 goto exit_session_conn_fwddb_param; 3854 } 3855 3856 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3857 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3858 NULL, NULL, NULL) == QLA_ERROR) { 3859 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3860 "get_ddb_entry for fw_ddb_index %d\n", 3861 ha->host_no, __func__, 3862 ddb_entry->fw_ddb_index)); 3863 goto exit_session_conn_fwddb_param; 3864 } 3865 3866 cls_sess = ddb_entry->sess; 3867 3868 cls_conn = ddb_entry->conn; 3869 3870 /* Update params */ 3871 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3872 3873 exit_session_conn_fwddb_param: 3874 if (fw_ddb_entry) 3875 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3876 fw_ddb_entry, fw_ddb_entry_dma); 3877 } 3878 3879 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3880 struct ddb_entry *ddb_entry) 3881 { 3882 struct iscsi_cls_session *cls_sess; 3883 struct iscsi_cls_conn *cls_conn; 3884 struct iscsi_session *sess; 3885 struct iscsi_conn *conn; 3886 uint32_t ddb_state; 3887 dma_addr_t fw_ddb_entry_dma; 3888 struct dev_db_entry *fw_ddb_entry; 3889 3890 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3891 &fw_ddb_entry_dma, GFP_KERNEL); 3892 if (!fw_ddb_entry) { 3893 ql4_printk(KERN_ERR, ha, 3894 "%s: Unable to allocate dma buffer\n", __func__); 3895 goto exit_session_conn_param; 3896 } 3897 3898 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3899 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3900 NULL, NULL, NULL) == QLA_ERROR) { 3901 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3902 "get_ddb_entry for fw_ddb_index %d\n", 3903 ha->host_no, __func__, 3904 ddb_entry->fw_ddb_index)); 3905 goto exit_session_conn_param; 3906 } 3907 3908 cls_sess = ddb_entry->sess; 3909 sess = cls_sess->dd_data; 3910 3911 cls_conn = ddb_entry->conn; 3912 conn = cls_conn->dd_data; 3913 3914 /* Update timers after login */ 3915 ddb_entry->default_relogin_timeout = 3916 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3917 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3918 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3919 ddb_entry->default_time2wait = 3920 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3921 3922 /* Update params */ 3923 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3924 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3925 3926 memcpy(sess->initiatorname, ha->name_string, 3927 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 3928 3929 exit_session_conn_param: 3930 if (fw_ddb_entry) 3931 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3932 fw_ddb_entry, fw_ddb_entry_dma); 3933 } 3934 3935 /* 3936 * Timer routines 3937 */ 3938 3939 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 3940 unsigned long interval) 3941 { 3942 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 3943 __func__, ha->host->host_no)); 3944 init_timer(&ha->timer); 3945 ha->timer.expires = jiffies + interval * HZ; 3946 ha->timer.data = (unsigned long)ha; 3947 ha->timer.function = (void (*)(unsigned long))func; 3948 add_timer(&ha->timer); 3949 ha->timer_active = 1; 3950 } 3951 3952 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 3953 { 3954 del_timer_sync(&ha->timer); 3955 ha->timer_active = 0; 3956 } 3957 3958 /*** 3959 * qla4xxx_mark_device_missing - blocks the session 3960 * @cls_session: Pointer to the session to be blocked 3961 * @ddb_entry: Pointer to device database entry 3962 * 3963 * This routine marks a device missing and close connection. 3964 **/ 3965 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 3966 { 3967 iscsi_block_session(cls_session); 3968 } 3969 3970 /** 3971 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 3972 * @ha: Pointer to host adapter structure. 3973 * 3974 * This routine marks a device missing and resets the relogin retry count. 3975 **/ 3976 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 3977 { 3978 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 3979 } 3980 3981 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 3982 struct ddb_entry *ddb_entry, 3983 struct scsi_cmnd *cmd) 3984 { 3985 struct srb *srb; 3986 3987 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 3988 if (!srb) 3989 return srb; 3990 3991 kref_init(&srb->srb_ref); 3992 srb->ha = ha; 3993 srb->ddb = ddb_entry; 3994 srb->cmd = cmd; 3995 srb->flags = 0; 3996 CMD_SP(cmd) = (void *)srb; 3997 3998 return srb; 3999 } 4000 4001 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4002 { 4003 struct scsi_cmnd *cmd = srb->cmd; 4004 4005 if (srb->flags & SRB_DMA_VALID) { 4006 scsi_dma_unmap(cmd); 4007 srb->flags &= ~SRB_DMA_VALID; 4008 } 4009 CMD_SP(cmd) = NULL; 4010 } 4011 4012 void qla4xxx_srb_compl(struct kref *ref) 4013 { 4014 struct srb *srb = container_of(ref, struct srb, srb_ref); 4015 struct scsi_cmnd *cmd = srb->cmd; 4016 struct scsi_qla_host *ha = srb->ha; 4017 4018 qla4xxx_srb_free_dma(ha, srb); 4019 4020 mempool_free(srb, ha->srb_mempool); 4021 4022 cmd->scsi_done(cmd); 4023 } 4024 4025 /** 4026 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4027 * @host: scsi host 4028 * @cmd: Pointer to Linux's SCSI command structure 4029 * 4030 * Remarks: 4031 * This routine is invoked by Linux to send a SCSI command to the driver. 4032 * The mid-level driver tries to ensure that queuecommand never gets 4033 * invoked concurrently with itself or the interrupt handler (although 4034 * the interrupt handler may call this routine as part of request- 4035 * completion handling). Unfortunely, it sometimes calls the scheduler 4036 * in interrupt context which is a big NO! NO!. 4037 **/ 4038 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4039 { 4040 struct scsi_qla_host *ha = to_qla_host(host); 4041 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4042 struct iscsi_cls_session *sess = ddb_entry->sess; 4043 struct srb *srb; 4044 int rval; 4045 4046 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4047 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4048 cmd->result = DID_NO_CONNECT << 16; 4049 else 4050 cmd->result = DID_REQUEUE << 16; 4051 goto qc_fail_command; 4052 } 4053 4054 if (!sess) { 4055 cmd->result = DID_IMM_RETRY << 16; 4056 goto qc_fail_command; 4057 } 4058 4059 rval = iscsi_session_chkready(sess); 4060 if (rval) { 4061 cmd->result = rval; 4062 goto qc_fail_command; 4063 } 4064 4065 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4066 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4067 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4068 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4069 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4070 !test_bit(AF_ONLINE, &ha->flags) || 4071 !test_bit(AF_LINK_UP, &ha->flags) || 4072 test_bit(AF_LOOPBACK, &ha->flags) || 4073 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4074 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4075 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4076 goto qc_host_busy; 4077 4078 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4079 if (!srb) 4080 goto qc_host_busy; 4081 4082 rval = qla4xxx_send_command_to_isp(ha, srb); 4083 if (rval != QLA_SUCCESS) 4084 goto qc_host_busy_free_sp; 4085 4086 return 0; 4087 4088 qc_host_busy_free_sp: 4089 qla4xxx_srb_free_dma(ha, srb); 4090 mempool_free(srb, ha->srb_mempool); 4091 4092 qc_host_busy: 4093 return SCSI_MLQUEUE_HOST_BUSY; 4094 4095 qc_fail_command: 4096 cmd->scsi_done(cmd); 4097 4098 return 0; 4099 } 4100 4101 /** 4102 * qla4xxx_mem_free - frees memory allocated to adapter 4103 * @ha: Pointer to host adapter structure. 4104 * 4105 * Frees memory previously allocated by qla4xxx_mem_alloc 4106 **/ 4107 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4108 { 4109 if (ha->queues) 4110 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4111 ha->queues_dma); 4112 4113 if (ha->fw_dump) 4114 vfree(ha->fw_dump); 4115 4116 ha->queues_len = 0; 4117 ha->queues = NULL; 4118 ha->queues_dma = 0; 4119 ha->request_ring = NULL; 4120 ha->request_dma = 0; 4121 ha->response_ring = NULL; 4122 ha->response_dma = 0; 4123 ha->shadow_regs = NULL; 4124 ha->shadow_regs_dma = 0; 4125 ha->fw_dump = NULL; 4126 ha->fw_dump_size = 0; 4127 4128 /* Free srb pool. */ 4129 if (ha->srb_mempool) 4130 mempool_destroy(ha->srb_mempool); 4131 4132 ha->srb_mempool = NULL; 4133 4134 if (ha->chap_dma_pool) 4135 dma_pool_destroy(ha->chap_dma_pool); 4136 4137 if (ha->chap_list) 4138 vfree(ha->chap_list); 4139 ha->chap_list = NULL; 4140 4141 if (ha->fw_ddb_dma_pool) 4142 dma_pool_destroy(ha->fw_ddb_dma_pool); 4143 4144 /* release io space registers */ 4145 if (is_qla8022(ha)) { 4146 if (ha->nx_pcibase) 4147 iounmap( 4148 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4149 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4150 if (ha->nx_pcibase) 4151 iounmap( 4152 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4153 } else if (ha->reg) { 4154 iounmap(ha->reg); 4155 } 4156 4157 if (ha->reset_tmplt.buff) 4158 vfree(ha->reset_tmplt.buff); 4159 4160 pci_release_regions(ha->pdev); 4161 } 4162 4163 /** 4164 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4165 * @ha: Pointer to host adapter structure 4166 * 4167 * Allocates DMA memory for request and response queues. Also allocates memory 4168 * for srbs. 4169 **/ 4170 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4171 { 4172 unsigned long align; 4173 4174 /* Allocate contiguous block of DMA memory for queues. */ 4175 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4176 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4177 sizeof(struct shadow_regs) + 4178 MEM_ALIGN_VALUE + 4179 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4180 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 4181 &ha->queues_dma, GFP_KERNEL); 4182 if (ha->queues == NULL) { 4183 ql4_printk(KERN_WARNING, ha, 4184 "Memory Allocation failed - queues.\n"); 4185 4186 goto mem_alloc_error_exit; 4187 } 4188 memset(ha->queues, 0, ha->queues_len); 4189 4190 /* 4191 * As per RISC alignment requirements -- the bus-address must be a 4192 * multiple of the request-ring size (in bytes). 4193 */ 4194 align = 0; 4195 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4196 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4197 (MEM_ALIGN_VALUE - 1)); 4198 4199 /* Update request and response queue pointers. */ 4200 ha->request_dma = ha->queues_dma + align; 4201 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4202 ha->response_dma = ha->queues_dma + align + 4203 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4204 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4205 (REQUEST_QUEUE_DEPTH * 4206 QUEUE_SIZE)); 4207 ha->shadow_regs_dma = ha->queues_dma + align + 4208 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4209 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4210 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4211 (REQUEST_QUEUE_DEPTH * 4212 QUEUE_SIZE) + 4213 (RESPONSE_QUEUE_DEPTH * 4214 QUEUE_SIZE)); 4215 4216 /* Allocate memory for srb pool. */ 4217 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4218 mempool_free_slab, srb_cachep); 4219 if (ha->srb_mempool == NULL) { 4220 ql4_printk(KERN_WARNING, ha, 4221 "Memory Allocation failed - SRB Pool.\n"); 4222 4223 goto mem_alloc_error_exit; 4224 } 4225 4226 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4227 CHAP_DMA_BLOCK_SIZE, 8, 0); 4228 4229 if (ha->chap_dma_pool == NULL) { 4230 ql4_printk(KERN_WARNING, ha, 4231 "%s: chap_dma_pool allocation failed..\n", __func__); 4232 goto mem_alloc_error_exit; 4233 } 4234 4235 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4236 DDB_DMA_BLOCK_SIZE, 8, 0); 4237 4238 if (ha->fw_ddb_dma_pool == NULL) { 4239 ql4_printk(KERN_WARNING, ha, 4240 "%s: fw_ddb_dma_pool allocation failed..\n", 4241 __func__); 4242 goto mem_alloc_error_exit; 4243 } 4244 4245 return QLA_SUCCESS; 4246 4247 mem_alloc_error_exit: 4248 qla4xxx_mem_free(ha); 4249 return QLA_ERROR; 4250 } 4251 4252 /** 4253 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4254 * @ha: adapter block pointer. 4255 * 4256 * Note: The caller should not hold the idc lock. 4257 **/ 4258 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4259 { 4260 uint32_t temp, temp_state, temp_val; 4261 int status = QLA_SUCCESS; 4262 4263 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4264 4265 temp_state = qla82xx_get_temp_state(temp); 4266 temp_val = qla82xx_get_temp_val(temp); 4267 4268 if (temp_state == QLA82XX_TEMP_PANIC) { 4269 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4270 " exceeds maximum allowed. Hardware has been shut" 4271 " down.\n", temp_val); 4272 status = QLA_ERROR; 4273 } else if (temp_state == QLA82XX_TEMP_WARN) { 4274 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4275 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4276 " degrees C exceeds operating range." 4277 " Immediate action needed.\n", temp_val); 4278 } else { 4279 if (ha->temperature == QLA82XX_TEMP_WARN) 4280 ql4_printk(KERN_INFO, ha, "Device temperature is" 4281 " now %d degrees C in normal range.\n", 4282 temp_val); 4283 } 4284 ha->temperature = temp_state; 4285 return status; 4286 } 4287 4288 /** 4289 * qla4_8xxx_check_fw_alive - Check firmware health 4290 * @ha: Pointer to host adapter structure. 4291 * 4292 * Context: Interrupt 4293 **/ 4294 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4295 { 4296 uint32_t fw_heartbeat_counter; 4297 int status = QLA_SUCCESS; 4298 4299 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4300 QLA8XXX_PEG_ALIVE_COUNTER); 4301 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4302 if (fw_heartbeat_counter == 0xffffffff) { 4303 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4304 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4305 ha->host_no, __func__)); 4306 return status; 4307 } 4308 4309 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4310 ha->seconds_since_last_heartbeat++; 4311 /* FW not alive after 2 seconds */ 4312 if (ha->seconds_since_last_heartbeat == 2) { 4313 ha->seconds_since_last_heartbeat = 0; 4314 qla4_8xxx_dump_peg_reg(ha); 4315 status = QLA_ERROR; 4316 } 4317 } else 4318 ha->seconds_since_last_heartbeat = 0; 4319 4320 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4321 return status; 4322 } 4323 4324 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4325 { 4326 uint32_t halt_status; 4327 int halt_status_unrecoverable = 0; 4328 4329 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4330 4331 if (is_qla8022(ha)) { 4332 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4333 __func__); 4334 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4335 CRB_NIU_XG_PAUSE_CTL_P0 | 4336 CRB_NIU_XG_PAUSE_CTL_P1); 4337 4338 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4339 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4340 __func__); 4341 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4342 halt_status_unrecoverable = 1; 4343 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4344 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4345 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4346 __func__); 4347 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4348 halt_status_unrecoverable = 1; 4349 } 4350 4351 /* 4352 * Since we cannot change dev_state in interrupt context, 4353 * set appropriate DPC flag then wakeup DPC 4354 */ 4355 if (halt_status_unrecoverable) { 4356 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4357 } else { 4358 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4359 __func__); 4360 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4361 } 4362 qla4xxx_mailbox_premature_completion(ha); 4363 qla4xxx_wake_dpc(ha); 4364 } 4365 4366 /** 4367 * qla4_8xxx_watchdog - Poll dev state 4368 * @ha: Pointer to host adapter structure. 4369 * 4370 * Context: Interrupt 4371 **/ 4372 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4373 { 4374 uint32_t dev_state; 4375 uint32_t idc_ctrl; 4376 4377 if (is_qla8032(ha) && 4378 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4379 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4380 __func__, ha->func_num); 4381 4382 /* don't poll if reset is going on */ 4383 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4384 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4385 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4386 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4387 4388 if (qla4_8xxx_check_temp(ha)) { 4389 if (is_qla8022(ha)) { 4390 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4391 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4392 CRB_NIU_XG_PAUSE_CTL_P0 | 4393 CRB_NIU_XG_PAUSE_CTL_P1); 4394 } 4395 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4396 qla4xxx_wake_dpc(ha); 4397 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4398 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4399 4400 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4401 __func__); 4402 4403 if (is_qla8032(ha) || is_qla8042(ha)) { 4404 idc_ctrl = qla4_83xx_rd_reg(ha, 4405 QLA83XX_IDC_DRV_CTRL); 4406 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4407 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4408 __func__); 4409 qla4xxx_mailbox_premature_completion( 4410 ha); 4411 } 4412 } 4413 4414 if ((is_qla8032(ha) || is_qla8042(ha)) || 4415 (is_qla8022(ha) && !ql4xdontresethba)) { 4416 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4417 qla4xxx_wake_dpc(ha); 4418 } 4419 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4420 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4421 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4422 __func__); 4423 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4424 qla4xxx_wake_dpc(ha); 4425 } else { 4426 /* Check firmware health */ 4427 if (qla4_8xxx_check_fw_alive(ha)) 4428 qla4_8xxx_process_fw_error(ha); 4429 } 4430 } 4431 } 4432 4433 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4434 { 4435 struct iscsi_session *sess; 4436 struct ddb_entry *ddb_entry; 4437 struct scsi_qla_host *ha; 4438 4439 sess = cls_sess->dd_data; 4440 ddb_entry = sess->dd_data; 4441 ha = ddb_entry->ha; 4442 4443 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4444 return; 4445 4446 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4447 !iscsi_is_session_online(cls_sess)) { 4448 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4449 INVALID_ENTRY) { 4450 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4451 0) { 4452 atomic_set(&ddb_entry->retry_relogin_timer, 4453 INVALID_ENTRY); 4454 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4455 set_bit(DF_RELOGIN, &ddb_entry->flags); 4456 DEBUG2(ql4_printk(KERN_INFO, ha, 4457 "%s: index [%d] login device\n", 4458 __func__, ddb_entry->fw_ddb_index)); 4459 } else 4460 atomic_dec(&ddb_entry->retry_relogin_timer); 4461 } 4462 } 4463 4464 /* Wait for relogin to timeout */ 4465 if (atomic_read(&ddb_entry->relogin_timer) && 4466 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4467 /* 4468 * If the relogin times out and the device is 4469 * still NOT ONLINE then try and relogin again. 4470 */ 4471 if (!iscsi_is_session_online(cls_sess)) { 4472 /* Reset retry relogin timer */ 4473 atomic_inc(&ddb_entry->relogin_retry_count); 4474 DEBUG2(ql4_printk(KERN_INFO, ha, 4475 "%s: index[%d] relogin timed out-retrying" 4476 " relogin (%d), retry (%d)\n", __func__, 4477 ddb_entry->fw_ddb_index, 4478 atomic_read(&ddb_entry->relogin_retry_count), 4479 ddb_entry->default_time2wait + 4)); 4480 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4481 atomic_set(&ddb_entry->retry_relogin_timer, 4482 ddb_entry->default_time2wait + 4); 4483 } 4484 } 4485 } 4486 4487 /** 4488 * qla4xxx_timer - checks every second for work to do. 4489 * @ha: Pointer to host adapter structure. 4490 **/ 4491 static void qla4xxx_timer(struct scsi_qla_host *ha) 4492 { 4493 int start_dpc = 0; 4494 uint16_t w; 4495 4496 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4497 4498 /* If we are in the middle of AER/EEH processing 4499 * skip any processing and reschedule the timer 4500 */ 4501 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4502 mod_timer(&ha->timer, jiffies + HZ); 4503 return; 4504 } 4505 4506 /* Hardware read to trigger an EEH error during mailbox waits. */ 4507 if (!pci_channel_offline(ha->pdev)) 4508 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4509 4510 if (is_qla80XX(ha)) 4511 qla4_8xxx_watchdog(ha); 4512 4513 if (is_qla40XX(ha)) { 4514 /* Check for heartbeat interval. */ 4515 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4516 ha->heartbeat_interval != 0) { 4517 ha->seconds_since_last_heartbeat++; 4518 if (ha->seconds_since_last_heartbeat > 4519 ha->heartbeat_interval + 2) 4520 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4521 } 4522 } 4523 4524 /* Process any deferred work. */ 4525 if (!list_empty(&ha->work_list)) 4526 start_dpc++; 4527 4528 /* Wakeup the dpc routine for this adapter, if needed. */ 4529 if (start_dpc || 4530 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4531 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4532 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4533 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4534 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4535 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4536 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4537 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4538 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4539 test_bit(DPC_AEN, &ha->dpc_flags)) { 4540 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4541 " - dpc flags = 0x%lx\n", 4542 ha->host_no, __func__, ha->dpc_flags)); 4543 qla4xxx_wake_dpc(ha); 4544 } 4545 4546 /* Reschedule timer thread to call us back in one second */ 4547 mod_timer(&ha->timer, jiffies + HZ); 4548 4549 DEBUG2(ha->seconds_since_last_intr++); 4550 } 4551 4552 /** 4553 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4554 * @ha: Pointer to host adapter structure. 4555 * 4556 * This routine stalls the driver until all outstanding commands are returned. 4557 * Caller must release the Hardware Lock prior to calling this routine. 4558 **/ 4559 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4560 { 4561 uint32_t index = 0; 4562 unsigned long flags; 4563 struct scsi_cmnd *cmd; 4564 unsigned long wtime; 4565 uint32_t wtmo; 4566 4567 if (is_qla40XX(ha)) 4568 wtmo = WAIT_CMD_TOV; 4569 else 4570 wtmo = ha->nx_reset_timeout / 2; 4571 4572 wtime = jiffies + (wtmo * HZ); 4573 4574 DEBUG2(ql4_printk(KERN_INFO, ha, 4575 "Wait up to %u seconds for cmds to complete\n", 4576 wtmo)); 4577 4578 while (!time_after_eq(jiffies, wtime)) { 4579 spin_lock_irqsave(&ha->hardware_lock, flags); 4580 /* Find a command that hasn't completed. */ 4581 for (index = 0; index < ha->host->can_queue; index++) { 4582 cmd = scsi_host_find_tag(ha->host, index); 4583 /* 4584 * We cannot just check if the index is valid, 4585 * becase if we are run from the scsi eh, then 4586 * the scsi/block layer is going to prevent 4587 * the tag from being released. 4588 */ 4589 if (cmd != NULL && CMD_SP(cmd)) 4590 break; 4591 } 4592 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4593 4594 /* If No Commands are pending, wait is complete */ 4595 if (index == ha->host->can_queue) 4596 return QLA_SUCCESS; 4597 4598 msleep(1000); 4599 } 4600 /* If we timed out on waiting for commands to come back 4601 * return ERROR. */ 4602 return QLA_ERROR; 4603 } 4604 4605 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4606 { 4607 uint32_t ctrl_status; 4608 unsigned long flags = 0; 4609 4610 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4611 4612 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4613 return QLA_ERROR; 4614 4615 spin_lock_irqsave(&ha->hardware_lock, flags); 4616 4617 /* 4618 * If the SCSI Reset Interrupt bit is set, clear it. 4619 * Otherwise, the Soft Reset won't work. 4620 */ 4621 ctrl_status = readw(&ha->reg->ctrl_status); 4622 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4623 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4624 4625 /* Issue Soft Reset */ 4626 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4627 readl(&ha->reg->ctrl_status); 4628 4629 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4630 return QLA_SUCCESS; 4631 } 4632 4633 /** 4634 * qla4xxx_soft_reset - performs soft reset. 4635 * @ha: Pointer to host adapter structure. 4636 **/ 4637 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4638 { 4639 uint32_t max_wait_time; 4640 unsigned long flags = 0; 4641 int status; 4642 uint32_t ctrl_status; 4643 4644 status = qla4xxx_hw_reset(ha); 4645 if (status != QLA_SUCCESS) 4646 return status; 4647 4648 status = QLA_ERROR; 4649 /* Wait until the Network Reset Intr bit is cleared */ 4650 max_wait_time = RESET_INTR_TOV; 4651 do { 4652 spin_lock_irqsave(&ha->hardware_lock, flags); 4653 ctrl_status = readw(&ha->reg->ctrl_status); 4654 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4655 4656 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4657 break; 4658 4659 msleep(1000); 4660 } while ((--max_wait_time)); 4661 4662 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4663 DEBUG2(printk(KERN_WARNING 4664 "scsi%ld: Network Reset Intr not cleared by " 4665 "Network function, clearing it now!\n", 4666 ha->host_no)); 4667 spin_lock_irqsave(&ha->hardware_lock, flags); 4668 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4669 readl(&ha->reg->ctrl_status); 4670 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4671 } 4672 4673 /* Wait until the firmware tells us the Soft Reset is done */ 4674 max_wait_time = SOFT_RESET_TOV; 4675 do { 4676 spin_lock_irqsave(&ha->hardware_lock, flags); 4677 ctrl_status = readw(&ha->reg->ctrl_status); 4678 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4679 4680 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4681 status = QLA_SUCCESS; 4682 break; 4683 } 4684 4685 msleep(1000); 4686 } while ((--max_wait_time)); 4687 4688 /* 4689 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4690 * after the soft reset has taken place. 4691 */ 4692 spin_lock_irqsave(&ha->hardware_lock, flags); 4693 ctrl_status = readw(&ha->reg->ctrl_status); 4694 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4695 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4696 readl(&ha->reg->ctrl_status); 4697 } 4698 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4699 4700 /* If soft reset fails then most probably the bios on other 4701 * function is also enabled. 4702 * Since the initialization is sequential the other fn 4703 * wont be able to acknowledge the soft reset. 4704 * Issue a force soft reset to workaround this scenario. 4705 */ 4706 if (max_wait_time == 0) { 4707 /* Issue Force Soft Reset */ 4708 spin_lock_irqsave(&ha->hardware_lock, flags); 4709 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4710 readl(&ha->reg->ctrl_status); 4711 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4712 /* Wait until the firmware tells us the Soft Reset is done */ 4713 max_wait_time = SOFT_RESET_TOV; 4714 do { 4715 spin_lock_irqsave(&ha->hardware_lock, flags); 4716 ctrl_status = readw(&ha->reg->ctrl_status); 4717 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4718 4719 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4720 status = QLA_SUCCESS; 4721 break; 4722 } 4723 4724 msleep(1000); 4725 } while ((--max_wait_time)); 4726 } 4727 4728 return status; 4729 } 4730 4731 /** 4732 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4733 * @ha: Pointer to host adapter structure. 4734 * @res: returned scsi status 4735 * 4736 * This routine is called just prior to a HARD RESET to return all 4737 * outstanding commands back to the Operating System. 4738 * Caller should make sure that the following locks are released 4739 * before this calling routine: Hardware lock, and io_request_lock. 4740 **/ 4741 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4742 { 4743 struct srb *srb; 4744 int i; 4745 unsigned long flags; 4746 4747 spin_lock_irqsave(&ha->hardware_lock, flags); 4748 for (i = 0; i < ha->host->can_queue; i++) { 4749 srb = qla4xxx_del_from_active_array(ha, i); 4750 if (srb != NULL) { 4751 srb->cmd->result = res; 4752 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4753 } 4754 } 4755 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4756 } 4757 4758 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4759 { 4760 clear_bit(AF_ONLINE, &ha->flags); 4761 4762 /* Disable the board */ 4763 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4764 4765 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4766 qla4xxx_mark_all_devices_missing(ha); 4767 clear_bit(AF_INIT_DONE, &ha->flags); 4768 } 4769 4770 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4771 { 4772 struct iscsi_session *sess; 4773 struct ddb_entry *ddb_entry; 4774 4775 sess = cls_session->dd_data; 4776 ddb_entry = sess->dd_data; 4777 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4778 4779 if (ddb_entry->ddb_type == FLASH_DDB) 4780 iscsi_block_session(ddb_entry->sess); 4781 else 4782 iscsi_session_failure(cls_session->dd_data, 4783 ISCSI_ERR_CONN_FAILED); 4784 } 4785 4786 /** 4787 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4788 * @ha: Pointer to host adapter structure. 4789 **/ 4790 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4791 { 4792 int status = QLA_ERROR; 4793 uint8_t reset_chip = 0; 4794 uint32_t dev_state; 4795 unsigned long wait; 4796 4797 /* Stall incoming I/O until we are done */ 4798 scsi_block_requests(ha->host); 4799 clear_bit(AF_ONLINE, &ha->flags); 4800 clear_bit(AF_LINK_UP, &ha->flags); 4801 4802 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4803 4804 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4805 4806 if ((is_qla8032(ha) || is_qla8042(ha)) && 4807 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4808 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4809 __func__); 4810 /* disable pause frame for ISP83xx */ 4811 qla4_83xx_disable_pause(ha); 4812 } 4813 4814 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4815 4816 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4817 reset_chip = 1; 4818 4819 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4820 * do not reset adapter, jump to initialize_adapter */ 4821 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4822 status = QLA_SUCCESS; 4823 goto recover_ha_init_adapter; 4824 } 4825 4826 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4827 * from eh_host_reset or ioctl module */ 4828 if (is_qla80XX(ha) && !reset_chip && 4829 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4830 4831 DEBUG2(ql4_printk(KERN_INFO, ha, 4832 "scsi%ld: %s - Performing stop_firmware...\n", 4833 ha->host_no, __func__)); 4834 status = ha->isp_ops->reset_firmware(ha); 4835 if (status == QLA_SUCCESS) { 4836 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4837 qla4xxx_cmd_wait(ha); 4838 4839 ha->isp_ops->disable_intrs(ha); 4840 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4841 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4842 } else { 4843 /* If the stop_firmware fails then 4844 * reset the entire chip */ 4845 reset_chip = 1; 4846 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4847 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4848 } 4849 } 4850 4851 /* Issue full chip reset if recovering from a catastrophic error, 4852 * or if stop_firmware fails for ISP-8xxx. 4853 * This is the default case for ISP-4xxx */ 4854 if (is_qla40XX(ha) || reset_chip) { 4855 if (is_qla40XX(ha)) 4856 goto chip_reset; 4857 4858 /* Check if 8XXX firmware is alive or not 4859 * We may have arrived here from NEED_RESET 4860 * detection only */ 4861 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4862 goto chip_reset; 4863 4864 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4865 while (time_before(jiffies, wait)) { 4866 if (qla4_8xxx_check_fw_alive(ha)) { 4867 qla4xxx_mailbox_premature_completion(ha); 4868 break; 4869 } 4870 4871 set_current_state(TASK_UNINTERRUPTIBLE); 4872 schedule_timeout(HZ); 4873 } 4874 chip_reset: 4875 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4876 qla4xxx_cmd_wait(ha); 4877 4878 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4879 DEBUG2(ql4_printk(KERN_INFO, ha, 4880 "scsi%ld: %s - Performing chip reset..\n", 4881 ha->host_no, __func__)); 4882 status = ha->isp_ops->reset_chip(ha); 4883 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4884 } 4885 4886 /* Flush any pending ddb changed AENs */ 4887 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4888 4889 recover_ha_init_adapter: 4890 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4891 if (status == QLA_SUCCESS) { 4892 /* For ISP-4xxx, force function 1 to always initialize 4893 * before function 3 to prevent both funcions from 4894 * stepping on top of the other */ 4895 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4896 ssleep(6); 4897 4898 /* NOTE: AF_ONLINE flag set upon successful completion of 4899 * qla4xxx_initialize_adapter */ 4900 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4901 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4902 status = qla4_8xxx_check_init_adapter_retry(ha); 4903 if (status == QLA_ERROR) { 4904 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4905 ha->host_no, __func__); 4906 qla4xxx_dead_adapter_cleanup(ha); 4907 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4908 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4909 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4910 &ha->dpc_flags); 4911 goto exit_recover; 4912 } 4913 } 4914 } 4915 4916 /* Retry failed adapter initialization, if necessary 4917 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4918 * case to prevent ping-pong resets between functions */ 4919 if (!test_bit(AF_ONLINE, &ha->flags) && 4920 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4921 /* Adapter initialization failed, see if we can retry 4922 * resetting the ha. 4923 * Since we don't want to block the DPC for too long 4924 * with multiple resets in the same thread, 4925 * utilize DPC to retry */ 4926 if (is_qla80XX(ha)) { 4927 ha->isp_ops->idc_lock(ha); 4928 dev_state = qla4_8xxx_rd_direct(ha, 4929 QLA8XXX_CRB_DEV_STATE); 4930 ha->isp_ops->idc_unlock(ha); 4931 if (dev_state == QLA8XXX_DEV_FAILED) { 4932 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4933 "recover adapter. H/W is in Failed " 4934 "state\n", __func__); 4935 qla4xxx_dead_adapter_cleanup(ha); 4936 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4937 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4938 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4939 &ha->dpc_flags); 4940 status = QLA_ERROR; 4941 4942 goto exit_recover; 4943 } 4944 } 4945 4946 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 4947 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 4948 DEBUG2(printk("scsi%ld: recover adapter - retrying " 4949 "(%d) more times\n", ha->host_no, 4950 ha->retry_reset_ha_cnt)); 4951 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4952 status = QLA_ERROR; 4953 } else { 4954 if (ha->retry_reset_ha_cnt > 0) { 4955 /* Schedule another Reset HA--DPC will retry */ 4956 ha->retry_reset_ha_cnt--; 4957 DEBUG2(printk("scsi%ld: recover adapter - " 4958 "retry remaining %d\n", 4959 ha->host_no, 4960 ha->retry_reset_ha_cnt)); 4961 status = QLA_ERROR; 4962 } 4963 4964 if (ha->retry_reset_ha_cnt == 0) { 4965 /* Recover adapter retries have been exhausted. 4966 * Adapter DEAD */ 4967 DEBUG2(printk("scsi%ld: recover adapter " 4968 "failed - board disabled\n", 4969 ha->host_no)); 4970 qla4xxx_dead_adapter_cleanup(ha); 4971 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4972 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4973 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4974 &ha->dpc_flags); 4975 status = QLA_ERROR; 4976 } 4977 } 4978 } else { 4979 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4980 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4981 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4982 } 4983 4984 exit_recover: 4985 ha->adapter_error_count++; 4986 4987 if (test_bit(AF_ONLINE, &ha->flags)) 4988 ha->isp_ops->enable_intrs(ha); 4989 4990 scsi_unblock_requests(ha->host); 4991 4992 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4993 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 4994 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 4995 4996 return status; 4997 } 4998 4999 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 5000 { 5001 struct iscsi_session *sess; 5002 struct ddb_entry *ddb_entry; 5003 struct scsi_qla_host *ha; 5004 5005 sess = cls_session->dd_data; 5006 ddb_entry = sess->dd_data; 5007 ha = ddb_entry->ha; 5008 if (!iscsi_is_session_online(cls_session)) { 5009 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5010 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5011 " unblock session\n", ha->host_no, __func__, 5012 ddb_entry->fw_ddb_index); 5013 iscsi_unblock_session(ddb_entry->sess); 5014 } else { 5015 /* Trigger relogin */ 5016 if (ddb_entry->ddb_type == FLASH_DDB) { 5017 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5018 test_bit(DF_DISABLE_RELOGIN, 5019 &ddb_entry->flags))) 5020 qla4xxx_arm_relogin_timer(ddb_entry); 5021 } else 5022 iscsi_session_failure(cls_session->dd_data, 5023 ISCSI_ERR_CONN_FAILED); 5024 } 5025 } 5026 } 5027 5028 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5029 { 5030 struct iscsi_session *sess; 5031 struct ddb_entry *ddb_entry; 5032 struct scsi_qla_host *ha; 5033 5034 sess = cls_session->dd_data; 5035 ddb_entry = sess->dd_data; 5036 ha = ddb_entry->ha; 5037 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5038 " unblock session\n", ha->host_no, __func__, 5039 ddb_entry->fw_ddb_index); 5040 5041 iscsi_unblock_session(ddb_entry->sess); 5042 5043 /* Start scan target */ 5044 if (test_bit(AF_ONLINE, &ha->flags)) { 5045 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5046 " start scan\n", ha->host_no, __func__, 5047 ddb_entry->fw_ddb_index); 5048 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 5049 } 5050 return QLA_SUCCESS; 5051 } 5052 5053 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5054 { 5055 struct iscsi_session *sess; 5056 struct ddb_entry *ddb_entry; 5057 struct scsi_qla_host *ha; 5058 int status = QLA_SUCCESS; 5059 5060 sess = cls_session->dd_data; 5061 ddb_entry = sess->dd_data; 5062 ha = ddb_entry->ha; 5063 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5064 " unblock user space session\n", ha->host_no, __func__, 5065 ddb_entry->fw_ddb_index); 5066 5067 if (!iscsi_is_session_online(cls_session)) { 5068 iscsi_conn_start(ddb_entry->conn); 5069 iscsi_conn_login_event(ddb_entry->conn, 5070 ISCSI_CONN_STATE_LOGGED_IN); 5071 } else { 5072 ql4_printk(KERN_INFO, ha, 5073 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5074 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5075 cls_session->sid); 5076 status = QLA_ERROR; 5077 } 5078 5079 return status; 5080 } 5081 5082 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5083 { 5084 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5085 } 5086 5087 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5088 { 5089 uint16_t relogin_timer; 5090 struct iscsi_session *sess; 5091 struct ddb_entry *ddb_entry; 5092 struct scsi_qla_host *ha; 5093 5094 sess = cls_sess->dd_data; 5095 ddb_entry = sess->dd_data; 5096 ha = ddb_entry->ha; 5097 5098 relogin_timer = max(ddb_entry->default_relogin_timeout, 5099 (uint16_t)RELOGIN_TOV); 5100 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5101 5102 DEBUG2(ql4_printk(KERN_INFO, ha, 5103 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5104 ddb_entry->fw_ddb_index, relogin_timer)); 5105 5106 qla4xxx_login_flash_ddb(cls_sess); 5107 } 5108 5109 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5110 { 5111 struct iscsi_session *sess; 5112 struct ddb_entry *ddb_entry; 5113 struct scsi_qla_host *ha; 5114 5115 sess = cls_sess->dd_data; 5116 ddb_entry = sess->dd_data; 5117 ha = ddb_entry->ha; 5118 5119 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5120 return; 5121 5122 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5123 return; 5124 5125 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5126 !iscsi_is_session_online(cls_sess)) { 5127 DEBUG2(ql4_printk(KERN_INFO, ha, 5128 "relogin issued\n")); 5129 qla4xxx_relogin_flash_ddb(cls_sess); 5130 } 5131 } 5132 5133 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5134 { 5135 if (ha->dpc_thread) 5136 queue_work(ha->dpc_thread, &ha->dpc_work); 5137 } 5138 5139 static struct qla4_work_evt * 5140 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5141 enum qla4_work_type type) 5142 { 5143 struct qla4_work_evt *e; 5144 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5145 5146 e = kzalloc(size, GFP_ATOMIC); 5147 if (!e) 5148 return NULL; 5149 5150 INIT_LIST_HEAD(&e->list); 5151 e->type = type; 5152 return e; 5153 } 5154 5155 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5156 struct qla4_work_evt *e) 5157 { 5158 unsigned long flags; 5159 5160 spin_lock_irqsave(&ha->work_lock, flags); 5161 list_add_tail(&e->list, &ha->work_list); 5162 spin_unlock_irqrestore(&ha->work_lock, flags); 5163 qla4xxx_wake_dpc(ha); 5164 } 5165 5166 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5167 enum iscsi_host_event_code aen_code, 5168 uint32_t data_size, uint8_t *data) 5169 { 5170 struct qla4_work_evt *e; 5171 5172 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5173 if (!e) 5174 return QLA_ERROR; 5175 5176 e->u.aen.code = aen_code; 5177 e->u.aen.data_size = data_size; 5178 memcpy(e->u.aen.data, data, data_size); 5179 5180 qla4xxx_post_work(ha, e); 5181 5182 return QLA_SUCCESS; 5183 } 5184 5185 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5186 uint32_t status, uint32_t pid, 5187 uint32_t data_size, uint8_t *data) 5188 { 5189 struct qla4_work_evt *e; 5190 5191 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5192 if (!e) 5193 return QLA_ERROR; 5194 5195 e->u.ping.status = status; 5196 e->u.ping.pid = pid; 5197 e->u.ping.data_size = data_size; 5198 memcpy(e->u.ping.data, data, data_size); 5199 5200 qla4xxx_post_work(ha, e); 5201 5202 return QLA_SUCCESS; 5203 } 5204 5205 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5206 { 5207 struct qla4_work_evt *e, *tmp; 5208 unsigned long flags; 5209 LIST_HEAD(work); 5210 5211 spin_lock_irqsave(&ha->work_lock, flags); 5212 list_splice_init(&ha->work_list, &work); 5213 spin_unlock_irqrestore(&ha->work_lock, flags); 5214 5215 list_for_each_entry_safe(e, tmp, &work, list) { 5216 list_del_init(&e->list); 5217 5218 switch (e->type) { 5219 case QLA4_EVENT_AEN: 5220 iscsi_post_host_event(ha->host_no, 5221 &qla4xxx_iscsi_transport, 5222 e->u.aen.code, 5223 e->u.aen.data_size, 5224 e->u.aen.data); 5225 break; 5226 case QLA4_EVENT_PING_STATUS: 5227 iscsi_ping_comp_event(ha->host_no, 5228 &qla4xxx_iscsi_transport, 5229 e->u.ping.status, 5230 e->u.ping.pid, 5231 e->u.ping.data_size, 5232 e->u.ping.data); 5233 break; 5234 default: 5235 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5236 "supported", e->type); 5237 } 5238 kfree(e); 5239 } 5240 } 5241 5242 /** 5243 * qla4xxx_do_dpc - dpc routine 5244 * @data: in our case pointer to adapter structure 5245 * 5246 * This routine is a task that is schedule by the interrupt handler 5247 * to perform the background processing for interrupts. We put it 5248 * on a task queue that is consumed whenever the scheduler runs; that's 5249 * so you can do anything (i.e. put the process to sleep etc). In fact, 5250 * the mid-level tries to sleep when it reaches the driver threshold 5251 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5252 **/ 5253 static void qla4xxx_do_dpc(struct work_struct *work) 5254 { 5255 struct scsi_qla_host *ha = 5256 container_of(work, struct scsi_qla_host, dpc_work); 5257 int status = QLA_ERROR; 5258 5259 DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 5260 "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5261 ha->host_no, __func__, ha->flags, ha->dpc_flags)) 5262 5263 /* Initialization not yet finished. Don't do anything yet. */ 5264 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5265 return; 5266 5267 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5268 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5269 ha->host_no, __func__, ha->flags)); 5270 return; 5271 } 5272 5273 /* post events to application */ 5274 qla4xxx_do_work(ha); 5275 5276 if (is_qla80XX(ha)) { 5277 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5278 if (is_qla8032(ha) || is_qla8042(ha)) { 5279 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5280 __func__); 5281 /* disable pause frame for ISP83xx */ 5282 qla4_83xx_disable_pause(ha); 5283 } 5284 5285 ha->isp_ops->idc_lock(ha); 5286 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5287 QLA8XXX_DEV_FAILED); 5288 ha->isp_ops->idc_unlock(ha); 5289 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5290 qla4_8xxx_device_state_handler(ha); 5291 } 5292 5293 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5294 if (is_qla8042(ha)) { 5295 if (ha->idc_info.info2 & 5296 ENABLE_INTERNAL_LOOPBACK) { 5297 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5298 __func__); 5299 status = qla4_84xx_config_acb(ha, 5300 ACB_CONFIG_DISABLE); 5301 if (status != QLA_SUCCESS) { 5302 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5303 __func__); 5304 } 5305 } 5306 } 5307 qla4_83xx_post_idc_ack(ha); 5308 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5309 } 5310 5311 if (is_qla8042(ha) && 5312 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5313 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5314 __func__); 5315 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5316 QLA_SUCCESS) { 5317 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5318 __func__); 5319 } 5320 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5321 } 5322 5323 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5324 qla4_8xxx_need_qsnt_handler(ha); 5325 } 5326 } 5327 5328 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5329 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5330 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5331 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5332 if ((is_qla8022(ha) && ql4xdontresethba) || 5333 ((is_qla8032(ha) || is_qla8042(ha)) && 5334 qla4_83xx_idc_dontreset(ha))) { 5335 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5336 ha->host_no, __func__)); 5337 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5338 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5339 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5340 goto dpc_post_reset_ha; 5341 } 5342 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5343 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5344 qla4xxx_recover_adapter(ha); 5345 5346 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5347 uint8_t wait_time = RESET_INTR_TOV; 5348 5349 while ((readw(&ha->reg->ctrl_status) & 5350 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5351 if (--wait_time == 0) 5352 break; 5353 msleep(1000); 5354 } 5355 if (wait_time == 0) 5356 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5357 "bit not cleared-- resetting\n", 5358 ha->host_no, __func__)); 5359 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5360 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5361 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5362 status = qla4xxx_recover_adapter(ha); 5363 } 5364 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5365 if (status == QLA_SUCCESS) 5366 ha->isp_ops->enable_intrs(ha); 5367 } 5368 } 5369 5370 dpc_post_reset_ha: 5371 /* ---- process AEN? --- */ 5372 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5373 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5374 5375 /* ---- Get DHCP IP Address? --- */ 5376 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5377 qla4xxx_get_dhcp_ip_address(ha); 5378 5379 /* ---- relogin device? --- */ 5380 if (adapter_up(ha) && 5381 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5382 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5383 } 5384 5385 /* ---- link change? --- */ 5386 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5387 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5388 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5389 /* ---- link down? --- */ 5390 qla4xxx_mark_all_devices_missing(ha); 5391 } else { 5392 /* ---- link up? --- * 5393 * F/W will auto login to all devices ONLY ONCE after 5394 * link up during driver initialization and runtime 5395 * fatal error recovery. Therefore, the driver must 5396 * manually relogin to devices when recovering from 5397 * connection failures, logouts, expired KATO, etc. */ 5398 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5399 qla4xxx_build_ddb_list(ha, ha->is_reset); 5400 iscsi_host_for_each_session(ha->host, 5401 qla4xxx_login_flash_ddb); 5402 } else 5403 qla4xxx_relogin_all_devices(ha); 5404 } 5405 } 5406 } 5407 5408 /** 5409 * qla4xxx_free_adapter - release the adapter 5410 * @ha: pointer to adapter structure 5411 **/ 5412 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5413 { 5414 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5415 5416 /* Turn-off interrupts on the card. */ 5417 ha->isp_ops->disable_intrs(ha); 5418 5419 if (is_qla40XX(ha)) { 5420 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5421 &ha->reg->ctrl_status); 5422 readl(&ha->reg->ctrl_status); 5423 } else if (is_qla8022(ha)) { 5424 writel(0, &ha->qla4_82xx_reg->host_int); 5425 readl(&ha->qla4_82xx_reg->host_int); 5426 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5427 writel(0, &ha->qla4_83xx_reg->risc_intr); 5428 readl(&ha->qla4_83xx_reg->risc_intr); 5429 } 5430 5431 /* Remove timer thread, if present */ 5432 if (ha->timer_active) 5433 qla4xxx_stop_timer(ha); 5434 5435 /* Kill the kernel thread for this host */ 5436 if (ha->dpc_thread) 5437 destroy_workqueue(ha->dpc_thread); 5438 5439 /* Kill the kernel thread for this host */ 5440 if (ha->task_wq) 5441 destroy_workqueue(ha->task_wq); 5442 5443 /* Put firmware in known state */ 5444 ha->isp_ops->reset_firmware(ha); 5445 5446 if (is_qla80XX(ha)) { 5447 ha->isp_ops->idc_lock(ha); 5448 qla4_8xxx_clear_drv_active(ha); 5449 ha->isp_ops->idc_unlock(ha); 5450 } 5451 5452 /* Detach interrupts */ 5453 qla4xxx_free_irqs(ha); 5454 5455 /* free extra memory */ 5456 qla4xxx_mem_free(ha); 5457 } 5458 5459 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5460 { 5461 int status = 0; 5462 unsigned long mem_base, mem_len, db_base, db_len; 5463 struct pci_dev *pdev = ha->pdev; 5464 5465 status = pci_request_regions(pdev, DRIVER_NAME); 5466 if (status) { 5467 printk(KERN_WARNING 5468 "scsi(%ld) Failed to reserve PIO regions (%s) " 5469 "status=%d\n", ha->host_no, pci_name(pdev), status); 5470 goto iospace_error_exit; 5471 } 5472 5473 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5474 __func__, pdev->revision)); 5475 ha->revision_id = pdev->revision; 5476 5477 /* remap phys address */ 5478 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5479 mem_len = pci_resource_len(pdev, 0); 5480 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5481 __func__, mem_base, mem_len)); 5482 5483 /* mapping of pcibase pointer */ 5484 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5485 if (!ha->nx_pcibase) { 5486 printk(KERN_ERR 5487 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5488 pci_release_regions(ha->pdev); 5489 goto iospace_error_exit; 5490 } 5491 5492 /* Mapping of IO base pointer, door bell read and write pointer */ 5493 5494 /* mapping of IO base pointer */ 5495 if (is_qla8022(ha)) { 5496 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5497 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5498 (ha->pdev->devfn << 11)); 5499 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5500 QLA82XX_CAM_RAM_DB2); 5501 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5502 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5503 ((uint8_t *)ha->nx_pcibase); 5504 } 5505 5506 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 5507 db_len = pci_resource_len(pdev, 4); 5508 5509 return 0; 5510 iospace_error_exit: 5511 return -ENOMEM; 5512 } 5513 5514 /*** 5515 * qla4xxx_iospace_config - maps registers 5516 * @ha: pointer to adapter structure 5517 * 5518 * This routines maps HBA's registers from the pci address space 5519 * into the kernel virtual address space for memory mapped i/o. 5520 **/ 5521 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5522 { 5523 unsigned long pio, pio_len, pio_flags; 5524 unsigned long mmio, mmio_len, mmio_flags; 5525 5526 pio = pci_resource_start(ha->pdev, 0); 5527 pio_len = pci_resource_len(ha->pdev, 0); 5528 pio_flags = pci_resource_flags(ha->pdev, 0); 5529 if (pio_flags & IORESOURCE_IO) { 5530 if (pio_len < MIN_IOBASE_LEN) { 5531 ql4_printk(KERN_WARNING, ha, 5532 "Invalid PCI I/O region size\n"); 5533 pio = 0; 5534 } 5535 } else { 5536 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5537 pio = 0; 5538 } 5539 5540 /* Use MMIO operations for all accesses. */ 5541 mmio = pci_resource_start(ha->pdev, 1); 5542 mmio_len = pci_resource_len(ha->pdev, 1); 5543 mmio_flags = pci_resource_flags(ha->pdev, 1); 5544 5545 if (!(mmio_flags & IORESOURCE_MEM)) { 5546 ql4_printk(KERN_ERR, ha, 5547 "region #0 not an MMIO resource, aborting\n"); 5548 5549 goto iospace_error_exit; 5550 } 5551 5552 if (mmio_len < MIN_IOBASE_LEN) { 5553 ql4_printk(KERN_ERR, ha, 5554 "Invalid PCI mem region size, aborting\n"); 5555 goto iospace_error_exit; 5556 } 5557 5558 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5559 ql4_printk(KERN_WARNING, ha, 5560 "Failed to reserve PIO/MMIO regions\n"); 5561 5562 goto iospace_error_exit; 5563 } 5564 5565 ha->pio_address = pio; 5566 ha->pio_length = pio_len; 5567 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5568 if (!ha->reg) { 5569 ql4_printk(KERN_ERR, ha, 5570 "cannot remap MMIO, aborting\n"); 5571 5572 goto iospace_error_exit; 5573 } 5574 5575 return 0; 5576 5577 iospace_error_exit: 5578 return -ENOMEM; 5579 } 5580 5581 static struct isp_operations qla4xxx_isp_ops = { 5582 .iospace_config = qla4xxx_iospace_config, 5583 .pci_config = qla4xxx_pci_config, 5584 .disable_intrs = qla4xxx_disable_intrs, 5585 .enable_intrs = qla4xxx_enable_intrs, 5586 .start_firmware = qla4xxx_start_firmware, 5587 .intr_handler = qla4xxx_intr_handler, 5588 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5589 .reset_chip = qla4xxx_soft_reset, 5590 .reset_firmware = qla4xxx_hw_reset, 5591 .queue_iocb = qla4xxx_queue_iocb, 5592 .complete_iocb = qla4xxx_complete_iocb, 5593 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5594 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5595 .get_sys_info = qla4xxx_get_sys_info, 5596 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5597 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5598 }; 5599 5600 static struct isp_operations qla4_82xx_isp_ops = { 5601 .iospace_config = qla4_8xxx_iospace_config, 5602 .pci_config = qla4_8xxx_pci_config, 5603 .disable_intrs = qla4_82xx_disable_intrs, 5604 .enable_intrs = qla4_82xx_enable_intrs, 5605 .start_firmware = qla4_8xxx_load_risc, 5606 .restart_firmware = qla4_82xx_try_start_fw, 5607 .intr_handler = qla4_82xx_intr_handler, 5608 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5609 .need_reset = qla4_8xxx_need_reset, 5610 .reset_chip = qla4_82xx_isp_reset, 5611 .reset_firmware = qla4_8xxx_stop_firmware, 5612 .queue_iocb = qla4_82xx_queue_iocb, 5613 .complete_iocb = qla4_82xx_complete_iocb, 5614 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5615 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5616 .get_sys_info = qla4_8xxx_get_sys_info, 5617 .rd_reg_direct = qla4_82xx_rd_32, 5618 .wr_reg_direct = qla4_82xx_wr_32, 5619 .rd_reg_indirect = qla4_82xx_md_rd_32, 5620 .wr_reg_indirect = qla4_82xx_md_wr_32, 5621 .idc_lock = qla4_82xx_idc_lock, 5622 .idc_unlock = qla4_82xx_idc_unlock, 5623 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5624 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5625 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5626 }; 5627 5628 static struct isp_operations qla4_83xx_isp_ops = { 5629 .iospace_config = qla4_8xxx_iospace_config, 5630 .pci_config = qla4_8xxx_pci_config, 5631 .disable_intrs = qla4_83xx_disable_intrs, 5632 .enable_intrs = qla4_83xx_enable_intrs, 5633 .start_firmware = qla4_8xxx_load_risc, 5634 .restart_firmware = qla4_83xx_start_firmware, 5635 .intr_handler = qla4_83xx_intr_handler, 5636 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5637 .need_reset = qla4_8xxx_need_reset, 5638 .reset_chip = qla4_83xx_isp_reset, 5639 .reset_firmware = qla4_8xxx_stop_firmware, 5640 .queue_iocb = qla4_83xx_queue_iocb, 5641 .complete_iocb = qla4_83xx_complete_iocb, 5642 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5643 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5644 .get_sys_info = qla4_8xxx_get_sys_info, 5645 .rd_reg_direct = qla4_83xx_rd_reg, 5646 .wr_reg_direct = qla4_83xx_wr_reg, 5647 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5648 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5649 .idc_lock = qla4_83xx_drv_lock, 5650 .idc_unlock = qla4_83xx_drv_unlock, 5651 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5652 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5653 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5654 }; 5655 5656 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5657 { 5658 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5659 } 5660 5661 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5662 { 5663 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5664 } 5665 5666 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5667 { 5668 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5669 } 5670 5671 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5672 { 5673 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5674 } 5675 5676 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5677 { 5678 struct scsi_qla_host *ha = data; 5679 char *str = buf; 5680 int rc; 5681 5682 switch (type) { 5683 case ISCSI_BOOT_ETH_FLAGS: 5684 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5685 break; 5686 case ISCSI_BOOT_ETH_INDEX: 5687 rc = sprintf(str, "0\n"); 5688 break; 5689 case ISCSI_BOOT_ETH_MAC: 5690 rc = sysfs_format_mac(str, ha->my_mac, 5691 MAC_ADDR_LEN); 5692 break; 5693 default: 5694 rc = -ENOSYS; 5695 break; 5696 } 5697 return rc; 5698 } 5699 5700 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5701 { 5702 int rc; 5703 5704 switch (type) { 5705 case ISCSI_BOOT_ETH_FLAGS: 5706 case ISCSI_BOOT_ETH_MAC: 5707 case ISCSI_BOOT_ETH_INDEX: 5708 rc = S_IRUGO; 5709 break; 5710 default: 5711 rc = 0; 5712 break; 5713 } 5714 return rc; 5715 } 5716 5717 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5718 { 5719 struct scsi_qla_host *ha = data; 5720 char *str = buf; 5721 int rc; 5722 5723 switch (type) { 5724 case ISCSI_BOOT_INI_INITIATOR_NAME: 5725 rc = sprintf(str, "%s\n", ha->name_string); 5726 break; 5727 default: 5728 rc = -ENOSYS; 5729 break; 5730 } 5731 return rc; 5732 } 5733 5734 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5735 { 5736 int rc; 5737 5738 switch (type) { 5739 case ISCSI_BOOT_INI_INITIATOR_NAME: 5740 rc = S_IRUGO; 5741 break; 5742 default: 5743 rc = 0; 5744 break; 5745 } 5746 return rc; 5747 } 5748 5749 static ssize_t 5750 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5751 char *buf) 5752 { 5753 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5754 char *str = buf; 5755 int rc; 5756 5757 switch (type) { 5758 case ISCSI_BOOT_TGT_NAME: 5759 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5760 break; 5761 case ISCSI_BOOT_TGT_IP_ADDR: 5762 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5763 rc = sprintf(buf, "%pI4\n", 5764 &boot_conn->dest_ipaddr.ip_address); 5765 else 5766 rc = sprintf(str, "%pI6\n", 5767 &boot_conn->dest_ipaddr.ip_address); 5768 break; 5769 case ISCSI_BOOT_TGT_PORT: 5770 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5771 break; 5772 case ISCSI_BOOT_TGT_CHAP_NAME: 5773 rc = sprintf(str, "%.*s\n", 5774 boot_conn->chap.target_chap_name_length, 5775 (char *)&boot_conn->chap.target_chap_name); 5776 break; 5777 case ISCSI_BOOT_TGT_CHAP_SECRET: 5778 rc = sprintf(str, "%.*s\n", 5779 boot_conn->chap.target_secret_length, 5780 (char *)&boot_conn->chap.target_secret); 5781 break; 5782 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5783 rc = sprintf(str, "%.*s\n", 5784 boot_conn->chap.intr_chap_name_length, 5785 (char *)&boot_conn->chap.intr_chap_name); 5786 break; 5787 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5788 rc = sprintf(str, "%.*s\n", 5789 boot_conn->chap.intr_secret_length, 5790 (char *)&boot_conn->chap.intr_secret); 5791 break; 5792 case ISCSI_BOOT_TGT_FLAGS: 5793 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5794 break; 5795 case ISCSI_BOOT_TGT_NIC_ASSOC: 5796 rc = sprintf(str, "0\n"); 5797 break; 5798 default: 5799 rc = -ENOSYS; 5800 break; 5801 } 5802 return rc; 5803 } 5804 5805 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 5806 { 5807 struct scsi_qla_host *ha = data; 5808 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 5809 5810 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5811 } 5812 5813 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5814 { 5815 struct scsi_qla_host *ha = data; 5816 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5817 5818 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5819 } 5820 5821 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5822 { 5823 int rc; 5824 5825 switch (type) { 5826 case ISCSI_BOOT_TGT_NAME: 5827 case ISCSI_BOOT_TGT_IP_ADDR: 5828 case ISCSI_BOOT_TGT_PORT: 5829 case ISCSI_BOOT_TGT_CHAP_NAME: 5830 case ISCSI_BOOT_TGT_CHAP_SECRET: 5831 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5832 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5833 case ISCSI_BOOT_TGT_NIC_ASSOC: 5834 case ISCSI_BOOT_TGT_FLAGS: 5835 rc = S_IRUGO; 5836 break; 5837 default: 5838 rc = 0; 5839 break; 5840 } 5841 return rc; 5842 } 5843 5844 static void qla4xxx_boot_release(void *data) 5845 { 5846 struct scsi_qla_host *ha = data; 5847 5848 scsi_host_put(ha->host); 5849 } 5850 5851 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5852 { 5853 dma_addr_t buf_dma; 5854 uint32_t addr, pri_addr, sec_addr; 5855 uint32_t offset; 5856 uint16_t func_num; 5857 uint8_t val; 5858 uint8_t *buf = NULL; 5859 size_t size = 13 * sizeof(uint8_t); 5860 int ret = QLA_SUCCESS; 5861 5862 func_num = PCI_FUNC(ha->pdev->devfn); 5863 5864 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5865 __func__, ha->pdev->device, func_num); 5866 5867 if (is_qla40XX(ha)) { 5868 if (func_num == 1) { 5869 addr = NVRAM_PORT0_BOOT_MODE; 5870 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5871 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5872 } else if (func_num == 3) { 5873 addr = NVRAM_PORT1_BOOT_MODE; 5874 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5875 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5876 } else { 5877 ret = QLA_ERROR; 5878 goto exit_boot_info; 5879 } 5880 5881 /* Check Boot Mode */ 5882 val = rd_nvram_byte(ha, addr); 5883 if (!(val & 0x07)) { 5884 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5885 "options : 0x%x\n", __func__, val)); 5886 ret = QLA_ERROR; 5887 goto exit_boot_info; 5888 } 5889 5890 /* get primary valid target index */ 5891 val = rd_nvram_byte(ha, pri_addr); 5892 if (val & BIT_7) 5893 ddb_index[0] = (val & 0x7f); 5894 5895 /* get secondary valid target index */ 5896 val = rd_nvram_byte(ha, sec_addr); 5897 if (val & BIT_7) 5898 ddb_index[1] = (val & 0x7f); 5899 5900 } else if (is_qla80XX(ha)) { 5901 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5902 &buf_dma, GFP_KERNEL); 5903 if (!buf) { 5904 DEBUG2(ql4_printk(KERN_ERR, ha, 5905 "%s: Unable to allocate dma buffer\n", 5906 __func__)); 5907 ret = QLA_ERROR; 5908 goto exit_boot_info; 5909 } 5910 5911 if (ha->port_num == 0) 5912 offset = BOOT_PARAM_OFFSET_PORT0; 5913 else if (ha->port_num == 1) 5914 offset = BOOT_PARAM_OFFSET_PORT1; 5915 else { 5916 ret = QLA_ERROR; 5917 goto exit_boot_info_free; 5918 } 5919 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5920 offset; 5921 if (qla4xxx_get_flash(ha, buf_dma, addr, 5922 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5923 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5924 " failed\n", ha->host_no, __func__)); 5925 ret = QLA_ERROR; 5926 goto exit_boot_info_free; 5927 } 5928 /* Check Boot Mode */ 5929 if (!(buf[1] & 0x07)) { 5930 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5931 " : 0x%x\n", buf[1])); 5932 ret = QLA_ERROR; 5933 goto exit_boot_info_free; 5934 } 5935 5936 /* get primary valid target index */ 5937 if (buf[2] & BIT_7) 5938 ddb_index[0] = buf[2] & 0x7f; 5939 5940 /* get secondary valid target index */ 5941 if (buf[11] & BIT_7) 5942 ddb_index[1] = buf[11] & 0x7f; 5943 } else { 5944 ret = QLA_ERROR; 5945 goto exit_boot_info; 5946 } 5947 5948 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 5949 " target ID %d\n", __func__, ddb_index[0], 5950 ddb_index[1])); 5951 5952 exit_boot_info_free: 5953 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 5954 exit_boot_info: 5955 ha->pri_ddb_idx = ddb_index[0]; 5956 ha->sec_ddb_idx = ddb_index[1]; 5957 return ret; 5958 } 5959 5960 /** 5961 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 5962 * @ha: pointer to adapter structure 5963 * @username: CHAP username to be returned 5964 * @password: CHAP password to be returned 5965 * 5966 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 5967 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 5968 * So from the CHAP cache find the first BIDI CHAP entry and set it 5969 * to the boot record in sysfs. 5970 **/ 5971 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 5972 char *password) 5973 { 5974 int i, ret = -EINVAL; 5975 int max_chap_entries = 0; 5976 struct ql4_chap_table *chap_table; 5977 5978 if (is_qla80XX(ha)) 5979 max_chap_entries = (ha->hw.flt_chap_size / 2) / 5980 sizeof(struct ql4_chap_table); 5981 else 5982 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 5983 5984 if (!ha->chap_list) { 5985 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 5986 return ret; 5987 } 5988 5989 mutex_lock(&ha->chap_sem); 5990 for (i = 0; i < max_chap_entries; i++) { 5991 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 5992 if (chap_table->cookie != 5993 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 5994 continue; 5995 } 5996 5997 if (chap_table->flags & BIT_7) /* local */ 5998 continue; 5999 6000 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6001 continue; 6002 6003 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6004 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6005 ret = 0; 6006 break; 6007 } 6008 mutex_unlock(&ha->chap_sem); 6009 6010 return ret; 6011 } 6012 6013 6014 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6015 struct ql4_boot_session_info *boot_sess, 6016 uint16_t ddb_index) 6017 { 6018 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6019 struct dev_db_entry *fw_ddb_entry; 6020 dma_addr_t fw_ddb_entry_dma; 6021 uint16_t idx; 6022 uint16_t options; 6023 int ret = QLA_SUCCESS; 6024 6025 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6026 &fw_ddb_entry_dma, GFP_KERNEL); 6027 if (!fw_ddb_entry) { 6028 DEBUG2(ql4_printk(KERN_ERR, ha, 6029 "%s: Unable to allocate dma buffer.\n", 6030 __func__)); 6031 ret = QLA_ERROR; 6032 return ret; 6033 } 6034 6035 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6036 fw_ddb_entry_dma, ddb_index)) { 6037 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6038 "index [%d]\n", __func__, ddb_index)); 6039 ret = QLA_ERROR; 6040 goto exit_boot_target; 6041 } 6042 6043 /* Update target name and IP from DDB */ 6044 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6045 min(sizeof(boot_sess->target_name), 6046 sizeof(fw_ddb_entry->iscsi_name))); 6047 6048 options = le16_to_cpu(fw_ddb_entry->options); 6049 if (options & DDB_OPT_IPV6_DEVICE) { 6050 memcpy(&boot_conn->dest_ipaddr.ip_address, 6051 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6052 } else { 6053 boot_conn->dest_ipaddr.ip_type = 0x1; 6054 memcpy(&boot_conn->dest_ipaddr.ip_address, 6055 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6056 } 6057 6058 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6059 6060 /* update chap information */ 6061 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6062 6063 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6064 6065 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6066 6067 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6068 target_chap_name, 6069 (char *)&boot_conn->chap.target_secret, 6070 idx); 6071 if (ret) { 6072 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6073 ret = QLA_ERROR; 6074 goto exit_boot_target; 6075 } 6076 6077 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6078 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6079 } 6080 6081 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6082 6083 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6084 6085 ret = qla4xxx_get_bidi_chap(ha, 6086 (char *)&boot_conn->chap.intr_chap_name, 6087 (char *)&boot_conn->chap.intr_secret); 6088 6089 if (ret) { 6090 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6091 ret = QLA_ERROR; 6092 goto exit_boot_target; 6093 } 6094 6095 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6096 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6097 } 6098 6099 exit_boot_target: 6100 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6101 fw_ddb_entry, fw_ddb_entry_dma); 6102 return ret; 6103 } 6104 6105 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6106 { 6107 uint16_t ddb_index[2]; 6108 int ret = QLA_ERROR; 6109 int rval; 6110 6111 memset(ddb_index, 0, sizeof(ddb_index)); 6112 ddb_index[0] = 0xffff; 6113 ddb_index[1] = 0xffff; 6114 ret = get_fw_boot_info(ha, ddb_index); 6115 if (ret != QLA_SUCCESS) { 6116 DEBUG2(ql4_printk(KERN_INFO, ha, 6117 "%s: No boot target configured.\n", __func__)); 6118 return ret; 6119 } 6120 6121 if (ql4xdisablesysfsboot) 6122 return QLA_SUCCESS; 6123 6124 if (ddb_index[0] == 0xffff) 6125 goto sec_target; 6126 6127 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6128 ddb_index[0]); 6129 if (rval != QLA_SUCCESS) { 6130 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6131 "configured\n", __func__)); 6132 } else 6133 ret = QLA_SUCCESS; 6134 6135 sec_target: 6136 if (ddb_index[1] == 0xffff) 6137 goto exit_get_boot_info; 6138 6139 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6140 ddb_index[1]); 6141 if (rval != QLA_SUCCESS) { 6142 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6143 " configured\n", __func__)); 6144 } else 6145 ret = QLA_SUCCESS; 6146 6147 exit_get_boot_info: 6148 return ret; 6149 } 6150 6151 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6152 { 6153 struct iscsi_boot_kobj *boot_kobj; 6154 6155 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6156 return QLA_ERROR; 6157 6158 if (ql4xdisablesysfsboot) { 6159 ql4_printk(KERN_INFO, ha, 6160 "%s: syfsboot disabled - driver will trigger login " 6161 "and publish session for discovery .\n", __func__); 6162 return QLA_SUCCESS; 6163 } 6164 6165 6166 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6167 if (!ha->boot_kset) 6168 goto kset_free; 6169 6170 if (!scsi_host_get(ha->host)) 6171 goto kset_free; 6172 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6173 qla4xxx_show_boot_tgt_pri_info, 6174 qla4xxx_tgt_get_attr_visibility, 6175 qla4xxx_boot_release); 6176 if (!boot_kobj) 6177 goto put_host; 6178 6179 if (!scsi_host_get(ha->host)) 6180 goto kset_free; 6181 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6182 qla4xxx_show_boot_tgt_sec_info, 6183 qla4xxx_tgt_get_attr_visibility, 6184 qla4xxx_boot_release); 6185 if (!boot_kobj) 6186 goto put_host; 6187 6188 if (!scsi_host_get(ha->host)) 6189 goto kset_free; 6190 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6191 qla4xxx_show_boot_ini_info, 6192 qla4xxx_ini_get_attr_visibility, 6193 qla4xxx_boot_release); 6194 if (!boot_kobj) 6195 goto put_host; 6196 6197 if (!scsi_host_get(ha->host)) 6198 goto kset_free; 6199 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6200 qla4xxx_show_boot_eth_info, 6201 qla4xxx_eth_get_attr_visibility, 6202 qla4xxx_boot_release); 6203 if (!boot_kobj) 6204 goto put_host; 6205 6206 return QLA_SUCCESS; 6207 6208 put_host: 6209 scsi_host_put(ha->host); 6210 kset_free: 6211 iscsi_boot_destroy_kset(ha->boot_kset); 6212 return -ENOMEM; 6213 } 6214 6215 6216 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6217 struct ql4_tuple_ddb *tddb) 6218 { 6219 struct scsi_qla_host *ha; 6220 struct iscsi_cls_session *cls_sess; 6221 struct iscsi_cls_conn *cls_conn; 6222 struct iscsi_session *sess; 6223 struct iscsi_conn *conn; 6224 6225 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6226 ha = ddb_entry->ha; 6227 cls_sess = ddb_entry->sess; 6228 sess = cls_sess->dd_data; 6229 cls_conn = ddb_entry->conn; 6230 conn = cls_conn->dd_data; 6231 6232 tddb->tpgt = sess->tpgt; 6233 tddb->port = conn->persistent_port; 6234 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 6235 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 6236 } 6237 6238 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6239 struct ql4_tuple_ddb *tddb, 6240 uint8_t *flash_isid) 6241 { 6242 uint16_t options = 0; 6243 6244 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6245 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6246 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6247 6248 options = le16_to_cpu(fw_ddb_entry->options); 6249 if (options & DDB_OPT_IPV6_DEVICE) 6250 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6251 else 6252 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6253 6254 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6255 6256 if (flash_isid == NULL) 6257 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6258 sizeof(tddb->isid)); 6259 else 6260 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6261 } 6262 6263 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6264 struct ql4_tuple_ddb *old_tddb, 6265 struct ql4_tuple_ddb *new_tddb, 6266 uint8_t is_isid_compare) 6267 { 6268 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6269 return QLA_ERROR; 6270 6271 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6272 return QLA_ERROR; 6273 6274 if (old_tddb->port != new_tddb->port) 6275 return QLA_ERROR; 6276 6277 /* For multi sessions, driver generates the ISID, so do not compare 6278 * ISID in reset path since it would be a comparison between the 6279 * driver generated ISID and firmware generated ISID. This could 6280 * lead to adding duplicated DDBs in the list as driver generated 6281 * ISID would not match firmware generated ISID. 6282 */ 6283 if (is_isid_compare) { 6284 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x" 6285 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n", 6286 __func__, old_tddb->isid[5], old_tddb->isid[4], 6287 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1], 6288 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4], 6289 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1], 6290 new_tddb->isid[0])); 6291 6292 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6293 sizeof(old_tddb->isid))) 6294 return QLA_ERROR; 6295 } 6296 6297 DEBUG2(ql4_printk(KERN_INFO, ha, 6298 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6299 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6300 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6301 new_tddb->ip_addr, new_tddb->iscsi_name)); 6302 6303 return QLA_SUCCESS; 6304 } 6305 6306 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6307 struct dev_db_entry *fw_ddb_entry, 6308 uint32_t *index) 6309 { 6310 struct ddb_entry *ddb_entry; 6311 struct ql4_tuple_ddb *fw_tddb = NULL; 6312 struct ql4_tuple_ddb *tmp_tddb = NULL; 6313 int idx; 6314 int ret = QLA_ERROR; 6315 6316 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6317 if (!fw_tddb) { 6318 DEBUG2(ql4_printk(KERN_WARNING, ha, 6319 "Memory Allocation failed.\n")); 6320 ret = QLA_SUCCESS; 6321 goto exit_check; 6322 } 6323 6324 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6325 if (!tmp_tddb) { 6326 DEBUG2(ql4_printk(KERN_WARNING, ha, 6327 "Memory Allocation failed.\n")); 6328 ret = QLA_SUCCESS; 6329 goto exit_check; 6330 } 6331 6332 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6333 6334 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6335 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6336 if (ddb_entry == NULL) 6337 continue; 6338 6339 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6340 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6341 ret = QLA_SUCCESS; /* found */ 6342 if (index != NULL) 6343 *index = idx; 6344 goto exit_check; 6345 } 6346 } 6347 6348 exit_check: 6349 if (fw_tddb) 6350 vfree(fw_tddb); 6351 if (tmp_tddb) 6352 vfree(tmp_tddb); 6353 return ret; 6354 } 6355 6356 /** 6357 * qla4xxx_check_existing_isid - check if target with same isid exist 6358 * in target list 6359 * @list_nt: list of target 6360 * @isid: isid to check 6361 * 6362 * This routine return QLA_SUCCESS if target with same isid exist 6363 **/ 6364 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6365 { 6366 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6367 struct dev_db_entry *fw_ddb_entry; 6368 6369 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6370 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6371 6372 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6373 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6374 return QLA_SUCCESS; 6375 } 6376 } 6377 return QLA_ERROR; 6378 } 6379 6380 /** 6381 * qla4xxx_update_isid - compare ddbs and updated isid 6382 * @ha: Pointer to host adapter structure. 6383 * @list_nt: list of nt target 6384 * @fw_ddb_entry: firmware ddb entry 6385 * 6386 * This routine update isid if ddbs have same iqn, same isid and 6387 * different IP addr. 6388 * Return QLA_SUCCESS if isid is updated. 6389 **/ 6390 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6391 struct list_head *list_nt, 6392 struct dev_db_entry *fw_ddb_entry) 6393 { 6394 uint8_t base_value, i; 6395 6396 base_value = fw_ddb_entry->isid[1] & 0x1f; 6397 for (i = 0; i < 8; i++) { 6398 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6399 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6400 break; 6401 } 6402 6403 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6404 return QLA_ERROR; 6405 6406 return QLA_SUCCESS; 6407 } 6408 6409 /** 6410 * qla4xxx_should_update_isid - check if isid need to update 6411 * @ha: Pointer to host adapter structure. 6412 * @old_tddb: ddb tuple 6413 * @new_tddb: ddb tuple 6414 * 6415 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6416 * same isid 6417 **/ 6418 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6419 struct ql4_tuple_ddb *old_tddb, 6420 struct ql4_tuple_ddb *new_tddb) 6421 { 6422 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6423 /* Same ip */ 6424 if (old_tddb->port == new_tddb->port) 6425 return QLA_ERROR; 6426 } 6427 6428 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6429 /* different iqn */ 6430 return QLA_ERROR; 6431 6432 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6433 sizeof(old_tddb->isid))) 6434 /* different isid */ 6435 return QLA_ERROR; 6436 6437 return QLA_SUCCESS; 6438 } 6439 6440 /** 6441 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6442 * @ha: Pointer to host adapter structure. 6443 * @list_nt: list of nt target. 6444 * @fw_ddb_entry: firmware ddb entry. 6445 * 6446 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6447 * duplicate ddb in list_nt. 6448 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6449 * Note: This function also update isid of DDB if required. 6450 **/ 6451 6452 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6453 struct list_head *list_nt, 6454 struct dev_db_entry *fw_ddb_entry) 6455 { 6456 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6457 struct ql4_tuple_ddb *fw_tddb = NULL; 6458 struct ql4_tuple_ddb *tmp_tddb = NULL; 6459 int rval, ret = QLA_ERROR; 6460 6461 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6462 if (!fw_tddb) { 6463 DEBUG2(ql4_printk(KERN_WARNING, ha, 6464 "Memory Allocation failed.\n")); 6465 ret = QLA_SUCCESS; 6466 goto exit_check; 6467 } 6468 6469 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6470 if (!tmp_tddb) { 6471 DEBUG2(ql4_printk(KERN_WARNING, ha, 6472 "Memory Allocation failed.\n")); 6473 ret = QLA_SUCCESS; 6474 goto exit_check; 6475 } 6476 6477 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6478 6479 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6480 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6481 nt_ddb_idx->flash_isid); 6482 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6483 /* found duplicate ddb */ 6484 if (ret == QLA_SUCCESS) 6485 goto exit_check; 6486 } 6487 6488 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6489 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6490 6491 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6492 if (ret == QLA_SUCCESS) { 6493 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6494 if (rval == QLA_SUCCESS) 6495 ret = QLA_ERROR; 6496 else 6497 ret = QLA_SUCCESS; 6498 6499 goto exit_check; 6500 } 6501 } 6502 6503 exit_check: 6504 if (fw_tddb) 6505 vfree(fw_tddb); 6506 if (tmp_tddb) 6507 vfree(tmp_tddb); 6508 return ret; 6509 } 6510 6511 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6512 { 6513 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6514 6515 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6516 list_del_init(&ddb_idx->list); 6517 vfree(ddb_idx); 6518 } 6519 } 6520 6521 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6522 struct dev_db_entry *fw_ddb_entry) 6523 { 6524 struct iscsi_endpoint *ep; 6525 struct sockaddr_in *addr; 6526 struct sockaddr_in6 *addr6; 6527 struct sockaddr *t_addr; 6528 struct sockaddr_storage *dst_addr; 6529 char *ip; 6530 6531 /* TODO: need to destroy on unload iscsi_endpoint*/ 6532 dst_addr = vmalloc(sizeof(*dst_addr)); 6533 if (!dst_addr) 6534 return NULL; 6535 6536 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6537 t_addr = (struct sockaddr *)dst_addr; 6538 t_addr->sa_family = AF_INET6; 6539 addr6 = (struct sockaddr_in6 *)dst_addr; 6540 ip = (char *)&addr6->sin6_addr; 6541 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6542 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6543 6544 } else { 6545 t_addr = (struct sockaddr *)dst_addr; 6546 t_addr->sa_family = AF_INET; 6547 addr = (struct sockaddr_in *)dst_addr; 6548 ip = (char *)&addr->sin_addr; 6549 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6550 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6551 } 6552 6553 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6554 vfree(dst_addr); 6555 return ep; 6556 } 6557 6558 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6559 { 6560 if (ql4xdisablesysfsboot) 6561 return QLA_SUCCESS; 6562 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6563 return QLA_ERROR; 6564 return QLA_SUCCESS; 6565 } 6566 6567 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6568 struct ddb_entry *ddb_entry, 6569 uint16_t idx) 6570 { 6571 uint16_t def_timeout; 6572 6573 ddb_entry->ddb_type = FLASH_DDB; 6574 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6575 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6576 ddb_entry->ha = ha; 6577 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6578 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6579 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6580 6581 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6582 atomic_set(&ddb_entry->relogin_timer, 0); 6583 atomic_set(&ddb_entry->relogin_retry_count, 0); 6584 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6585 ddb_entry->default_relogin_timeout = 6586 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6587 def_timeout : LOGIN_TOV; 6588 ddb_entry->default_time2wait = 6589 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6590 6591 if (ql4xdisablesysfsboot && 6592 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6593 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6594 } 6595 6596 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6597 { 6598 uint32_t idx = 0; 6599 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6600 uint32_t sts[MBOX_REG_COUNT]; 6601 uint32_t ip_state; 6602 unsigned long wtime; 6603 int ret; 6604 6605 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6606 do { 6607 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6608 if (ip_idx[idx] == -1) 6609 continue; 6610 6611 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6612 6613 if (ret == QLA_ERROR) { 6614 ip_idx[idx] = -1; 6615 continue; 6616 } 6617 6618 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6619 6620 DEBUG2(ql4_printk(KERN_INFO, ha, 6621 "Waiting for IP state for idx = %d, state = 0x%x\n", 6622 ip_idx[idx], ip_state)); 6623 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6624 ip_state == IP_ADDRSTATE_INVALID || 6625 ip_state == IP_ADDRSTATE_PREFERRED || 6626 ip_state == IP_ADDRSTATE_DEPRICATED || 6627 ip_state == IP_ADDRSTATE_DISABLING) 6628 ip_idx[idx] = -1; 6629 } 6630 6631 /* Break if all IP states checked */ 6632 if ((ip_idx[0] == -1) && 6633 (ip_idx[1] == -1) && 6634 (ip_idx[2] == -1) && 6635 (ip_idx[3] == -1)) 6636 break; 6637 schedule_timeout_uninterruptible(HZ); 6638 } while (time_after(wtime, jiffies)); 6639 } 6640 6641 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6642 struct dev_db_entry *flash_ddb_entry) 6643 { 6644 uint16_t options = 0; 6645 size_t ip_len = IP_ADDR_LEN; 6646 6647 options = le16_to_cpu(fw_ddb_entry->options); 6648 if (options & DDB_OPT_IPV6_DEVICE) 6649 ip_len = IPv6_ADDR_LEN; 6650 6651 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6652 return QLA_ERROR; 6653 6654 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6655 sizeof(fw_ddb_entry->isid))) 6656 return QLA_ERROR; 6657 6658 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6659 sizeof(fw_ddb_entry->port))) 6660 return QLA_ERROR; 6661 6662 return QLA_SUCCESS; 6663 } 6664 6665 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6666 struct dev_db_entry *fw_ddb_entry, 6667 uint32_t fw_idx, uint32_t *flash_index) 6668 { 6669 struct dev_db_entry *flash_ddb_entry; 6670 dma_addr_t flash_ddb_entry_dma; 6671 uint32_t idx = 0; 6672 int max_ddbs; 6673 int ret = QLA_ERROR, status; 6674 6675 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6676 MAX_DEV_DB_ENTRIES; 6677 6678 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6679 &flash_ddb_entry_dma); 6680 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6681 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6682 goto exit_find_st_idx; 6683 } 6684 6685 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6686 flash_ddb_entry_dma, fw_idx); 6687 if (status == QLA_SUCCESS) { 6688 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6689 if (status == QLA_SUCCESS) { 6690 *flash_index = fw_idx; 6691 ret = QLA_SUCCESS; 6692 goto exit_find_st_idx; 6693 } 6694 } 6695 6696 for (idx = 0; idx < max_ddbs; idx++) { 6697 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6698 flash_ddb_entry_dma, idx); 6699 if (status == QLA_ERROR) 6700 continue; 6701 6702 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6703 if (status == QLA_SUCCESS) { 6704 *flash_index = idx; 6705 ret = QLA_SUCCESS; 6706 goto exit_find_st_idx; 6707 } 6708 } 6709 6710 if (idx == max_ddbs) 6711 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6712 fw_idx); 6713 6714 exit_find_st_idx: 6715 if (flash_ddb_entry) 6716 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6717 flash_ddb_entry_dma); 6718 6719 return ret; 6720 } 6721 6722 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6723 struct list_head *list_st) 6724 { 6725 struct qla_ddb_index *st_ddb_idx; 6726 int max_ddbs; 6727 int fw_idx_size; 6728 struct dev_db_entry *fw_ddb_entry; 6729 dma_addr_t fw_ddb_dma; 6730 int ret; 6731 uint32_t idx = 0, next_idx = 0; 6732 uint32_t state = 0, conn_err = 0; 6733 uint32_t flash_index = -1; 6734 uint16_t conn_id = 0; 6735 6736 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6737 &fw_ddb_dma); 6738 if (fw_ddb_entry == NULL) { 6739 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6740 goto exit_st_list; 6741 } 6742 6743 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6744 MAX_DEV_DB_ENTRIES; 6745 fw_idx_size = sizeof(struct qla_ddb_index); 6746 6747 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6748 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6749 NULL, &next_idx, &state, 6750 &conn_err, NULL, &conn_id); 6751 if (ret == QLA_ERROR) 6752 break; 6753 6754 /* Ignore DDB if invalid state (unassigned) */ 6755 if (state == DDB_DS_UNASSIGNED) 6756 goto continue_next_st; 6757 6758 /* Check if ST, add to the list_st */ 6759 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6760 goto continue_next_st; 6761 6762 st_ddb_idx = vzalloc(fw_idx_size); 6763 if (!st_ddb_idx) 6764 break; 6765 6766 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6767 &flash_index); 6768 if (ret == QLA_ERROR) { 6769 ql4_printk(KERN_ERR, ha, 6770 "No flash entry for ST at idx [%d]\n", idx); 6771 st_ddb_idx->flash_ddb_idx = idx; 6772 } else { 6773 ql4_printk(KERN_INFO, ha, 6774 "ST at idx [%d] is stored at flash [%d]\n", 6775 idx, flash_index); 6776 st_ddb_idx->flash_ddb_idx = flash_index; 6777 } 6778 6779 st_ddb_idx->fw_ddb_idx = idx; 6780 6781 list_add_tail(&st_ddb_idx->list, list_st); 6782 continue_next_st: 6783 if (next_idx == 0) 6784 break; 6785 } 6786 6787 exit_st_list: 6788 if (fw_ddb_entry) 6789 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6790 } 6791 6792 /** 6793 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6794 * @ha: pointer to adapter structure 6795 * @list_ddb: List from which failed ddb to be removed 6796 * 6797 * Iterate over the list of DDBs and find and remove DDBs that are either in 6798 * no connection active state or failed state 6799 **/ 6800 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6801 struct list_head *list_ddb) 6802 { 6803 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6804 uint32_t next_idx = 0; 6805 uint32_t state = 0, conn_err = 0; 6806 int ret; 6807 6808 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6809 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6810 NULL, 0, NULL, &next_idx, &state, 6811 &conn_err, NULL, NULL); 6812 if (ret == QLA_ERROR) 6813 continue; 6814 6815 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6816 state == DDB_DS_SESSION_FAILED) { 6817 list_del_init(&ddb_idx->list); 6818 vfree(ddb_idx); 6819 } 6820 } 6821 } 6822 6823 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6824 struct ddb_entry *ddb_entry, 6825 struct dev_db_entry *fw_ddb_entry) 6826 { 6827 struct iscsi_cls_session *cls_sess; 6828 struct iscsi_session *sess; 6829 uint32_t max_ddbs = 0; 6830 uint16_t ddb_link = -1; 6831 6832 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6833 MAX_DEV_DB_ENTRIES; 6834 6835 cls_sess = ddb_entry->sess; 6836 sess = cls_sess->dd_data; 6837 6838 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6839 if (ddb_link < max_ddbs) 6840 sess->discovery_parent_idx = ddb_link; 6841 else 6842 sess->discovery_parent_idx = DDB_NO_LINK; 6843 } 6844 6845 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6846 struct dev_db_entry *fw_ddb_entry, 6847 int is_reset, uint16_t idx) 6848 { 6849 struct iscsi_cls_session *cls_sess; 6850 struct iscsi_session *sess; 6851 struct iscsi_cls_conn *cls_conn; 6852 struct iscsi_endpoint *ep; 6853 uint16_t cmds_max = 32; 6854 uint16_t conn_id = 0; 6855 uint32_t initial_cmdsn = 0; 6856 int ret = QLA_SUCCESS; 6857 6858 struct ddb_entry *ddb_entry = NULL; 6859 6860 /* Create session object, with INVALID_ENTRY, 6861 * the targer_id would get set when we issue the login 6862 */ 6863 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6864 cmds_max, sizeof(struct ddb_entry), 6865 sizeof(struct ql4_task_data), 6866 initial_cmdsn, INVALID_ENTRY); 6867 if (!cls_sess) { 6868 ret = QLA_ERROR; 6869 goto exit_setup; 6870 } 6871 6872 /* 6873 * so calling module_put function to decrement the 6874 * reference count. 6875 **/ 6876 module_put(qla4xxx_iscsi_transport.owner); 6877 sess = cls_sess->dd_data; 6878 ddb_entry = sess->dd_data; 6879 ddb_entry->sess = cls_sess; 6880 6881 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6882 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6883 sizeof(struct dev_db_entry)); 6884 6885 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6886 6887 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6888 6889 if (!cls_conn) { 6890 ret = QLA_ERROR; 6891 goto exit_setup; 6892 } 6893 6894 ddb_entry->conn = cls_conn; 6895 6896 /* Setup ep, for displaying attributes in sysfs */ 6897 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6898 if (ep) { 6899 ep->conn = cls_conn; 6900 cls_conn->ep = ep; 6901 } else { 6902 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6903 ret = QLA_ERROR; 6904 goto exit_setup; 6905 } 6906 6907 /* Update sess/conn params */ 6908 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6909 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6910 6911 if (is_reset == RESET_ADAPTER) { 6912 iscsi_block_session(cls_sess); 6913 /* Use the relogin path to discover new devices 6914 * by short-circuting the logic of setting 6915 * timer to relogin - instead set the flags 6916 * to initiate login right away. 6917 */ 6918 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6919 set_bit(DF_RELOGIN, &ddb_entry->flags); 6920 } 6921 6922 exit_setup: 6923 return ret; 6924 } 6925 6926 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6927 struct list_head *list_ddb, 6928 struct dev_db_entry *fw_ddb_entry) 6929 { 6930 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6931 uint16_t ddb_link; 6932 6933 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6934 6935 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6936 if (ddb_idx->fw_ddb_idx == ddb_link) { 6937 DEBUG2(ql4_printk(KERN_INFO, ha, 6938 "Updating NT parent idx from [%d] to [%d]\n", 6939 ddb_link, ddb_idx->flash_ddb_idx)); 6940 fw_ddb_entry->ddb_link = 6941 cpu_to_le16(ddb_idx->flash_ddb_idx); 6942 return; 6943 } 6944 } 6945 } 6946 6947 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 6948 struct list_head *list_nt, 6949 struct list_head *list_st, 6950 int is_reset) 6951 { 6952 struct dev_db_entry *fw_ddb_entry; 6953 struct ddb_entry *ddb_entry = NULL; 6954 dma_addr_t fw_ddb_dma; 6955 int max_ddbs; 6956 int fw_idx_size; 6957 int ret; 6958 uint32_t idx = 0, next_idx = 0; 6959 uint32_t state = 0, conn_err = 0; 6960 uint32_t ddb_idx = -1; 6961 uint16_t conn_id = 0; 6962 uint16_t ddb_link = -1; 6963 struct qla_ddb_index *nt_ddb_idx; 6964 6965 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6966 &fw_ddb_dma); 6967 if (fw_ddb_entry == NULL) { 6968 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6969 goto exit_nt_list; 6970 } 6971 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6972 MAX_DEV_DB_ENTRIES; 6973 fw_idx_size = sizeof(struct qla_ddb_index); 6974 6975 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6976 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6977 NULL, &next_idx, &state, 6978 &conn_err, NULL, &conn_id); 6979 if (ret == QLA_ERROR) 6980 break; 6981 6982 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 6983 goto continue_next_nt; 6984 6985 /* Check if NT, then add to list it */ 6986 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 6987 goto continue_next_nt; 6988 6989 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6990 if (ddb_link < max_ddbs) 6991 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 6992 6993 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 6994 state == DDB_DS_SESSION_FAILED) && 6995 (is_reset == INIT_ADAPTER)) 6996 goto continue_next_nt; 6997 6998 DEBUG2(ql4_printk(KERN_INFO, ha, 6999 "Adding DDB to session = 0x%x\n", idx)); 7000 7001 if (is_reset == INIT_ADAPTER) { 7002 nt_ddb_idx = vmalloc(fw_idx_size); 7003 if (!nt_ddb_idx) 7004 break; 7005 7006 nt_ddb_idx->fw_ddb_idx = idx; 7007 7008 /* Copy original isid as it may get updated in function 7009 * qla4xxx_update_isid(). We need original isid in 7010 * function qla4xxx_compare_tuple_ddb to find duplicate 7011 * target */ 7012 memcpy(&nt_ddb_idx->flash_isid[0], 7013 &fw_ddb_entry->isid[0], 7014 sizeof(nt_ddb_idx->flash_isid)); 7015 7016 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7017 fw_ddb_entry); 7018 if (ret == QLA_SUCCESS) { 7019 /* free nt_ddb_idx and do not add to list_nt */ 7020 vfree(nt_ddb_idx); 7021 goto continue_next_nt; 7022 } 7023 7024 /* Copy updated isid */ 7025 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7026 sizeof(struct dev_db_entry)); 7027 7028 list_add_tail(&nt_ddb_idx->list, list_nt); 7029 } else if (is_reset == RESET_ADAPTER) { 7030 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7031 &ddb_idx); 7032 if (ret == QLA_SUCCESS) { 7033 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7034 ddb_idx); 7035 if (ddb_entry != NULL) 7036 qla4xxx_update_sess_disc_idx(ha, 7037 ddb_entry, 7038 fw_ddb_entry); 7039 goto continue_next_nt; 7040 } 7041 } 7042 7043 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7044 if (ret == QLA_ERROR) 7045 goto exit_nt_list; 7046 7047 continue_next_nt: 7048 if (next_idx == 0) 7049 break; 7050 } 7051 7052 exit_nt_list: 7053 if (fw_ddb_entry) 7054 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7055 } 7056 7057 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7058 struct list_head *list_nt, 7059 uint16_t target_id) 7060 { 7061 struct dev_db_entry *fw_ddb_entry; 7062 dma_addr_t fw_ddb_dma; 7063 int max_ddbs; 7064 int fw_idx_size; 7065 int ret; 7066 uint32_t idx = 0, next_idx = 0; 7067 uint32_t state = 0, conn_err = 0; 7068 uint16_t conn_id = 0; 7069 struct qla_ddb_index *nt_ddb_idx; 7070 7071 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7072 &fw_ddb_dma); 7073 if (fw_ddb_entry == NULL) { 7074 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7075 goto exit_new_nt_list; 7076 } 7077 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7078 MAX_DEV_DB_ENTRIES; 7079 fw_idx_size = sizeof(struct qla_ddb_index); 7080 7081 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7082 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7083 NULL, &next_idx, &state, 7084 &conn_err, NULL, &conn_id); 7085 if (ret == QLA_ERROR) 7086 break; 7087 7088 /* Check if NT, then add it to list */ 7089 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7090 goto continue_next_new_nt; 7091 7092 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7093 goto continue_next_new_nt; 7094 7095 DEBUG2(ql4_printk(KERN_INFO, ha, 7096 "Adding DDB to session = 0x%x\n", idx)); 7097 7098 nt_ddb_idx = vmalloc(fw_idx_size); 7099 if (!nt_ddb_idx) 7100 break; 7101 7102 nt_ddb_idx->fw_ddb_idx = idx; 7103 7104 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7105 if (ret == QLA_SUCCESS) { 7106 /* free nt_ddb_idx and do not add to list_nt */ 7107 vfree(nt_ddb_idx); 7108 goto continue_next_new_nt; 7109 } 7110 7111 if (target_id < max_ddbs) 7112 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7113 7114 list_add_tail(&nt_ddb_idx->list, list_nt); 7115 7116 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7117 idx); 7118 if (ret == QLA_ERROR) 7119 goto exit_new_nt_list; 7120 7121 continue_next_new_nt: 7122 if (next_idx == 0) 7123 break; 7124 } 7125 7126 exit_new_nt_list: 7127 if (fw_ddb_entry) 7128 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7129 } 7130 7131 /** 7132 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7133 * @dev: dev associated with the sysfs entry 7134 * @data: pointer to flashnode session object 7135 * 7136 * Returns: 7137 * 1: if flashnode entry is non-persistent 7138 * 0: if flashnode entry is persistent 7139 **/ 7140 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) 7141 { 7142 struct iscsi_bus_flash_session *fnode_sess; 7143 7144 if (!iscsi_flashnode_bus_match(dev, NULL)) 7145 return 0; 7146 7147 fnode_sess = iscsi_dev_to_flash_session(dev); 7148 7149 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7150 } 7151 7152 /** 7153 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7154 * @ha: pointer to host 7155 * @fw_ddb_entry: flash ddb data 7156 * @idx: target index 7157 * @user: if set then this call is made from userland else from kernel 7158 * 7159 * Returns: 7160 * On sucess: QLA_SUCCESS 7161 * On failure: QLA_ERROR 7162 * 7163 * This create separate sysfs entries for session and connection attributes of 7164 * the given fw ddb entry. 7165 * If this is invoked as a result of a userspace call then the entry is marked 7166 * as nonpersistent using flash_state field. 7167 **/ 7168 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7169 struct dev_db_entry *fw_ddb_entry, 7170 uint16_t *idx, int user) 7171 { 7172 struct iscsi_bus_flash_session *fnode_sess = NULL; 7173 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7174 int rc = QLA_ERROR; 7175 7176 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7177 &qla4xxx_iscsi_transport, 0); 7178 if (!fnode_sess) { 7179 ql4_printk(KERN_ERR, ha, 7180 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7181 __func__, *idx, ha->host_no); 7182 goto exit_tgt_create; 7183 } 7184 7185 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7186 &qla4xxx_iscsi_transport, 0); 7187 if (!fnode_conn) { 7188 ql4_printk(KERN_ERR, ha, 7189 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7190 __func__, *idx, ha->host_no); 7191 goto free_sess; 7192 } 7193 7194 if (user) { 7195 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7196 } else { 7197 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7198 7199 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7200 fnode_sess->is_boot_target = 1; 7201 else 7202 fnode_sess->is_boot_target = 0; 7203 } 7204 7205 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7206 fw_ddb_entry); 7207 7208 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7209 __func__, fnode_sess->dev.kobj.name); 7210 7211 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7212 __func__, fnode_conn->dev.kobj.name); 7213 7214 return QLA_SUCCESS; 7215 7216 free_sess: 7217 iscsi_destroy_flashnode_sess(fnode_sess); 7218 7219 exit_tgt_create: 7220 return QLA_ERROR; 7221 } 7222 7223 /** 7224 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7225 * @shost: pointer to host 7226 * @buf: type of ddb entry (ipv4/ipv6) 7227 * @len: length of buf 7228 * 7229 * This creates new ddb entry in the flash by finding first free index and 7230 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7231 **/ 7232 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7233 int len) 7234 { 7235 struct scsi_qla_host *ha = to_qla_host(shost); 7236 struct dev_db_entry *fw_ddb_entry = NULL; 7237 dma_addr_t fw_ddb_entry_dma; 7238 struct device *dev; 7239 uint16_t idx = 0; 7240 uint16_t max_ddbs = 0; 7241 uint32_t options = 0; 7242 uint32_t rval = QLA_ERROR; 7243 7244 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7245 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7246 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7247 __func__)); 7248 goto exit_ddb_add; 7249 } 7250 7251 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7252 MAX_DEV_DB_ENTRIES; 7253 7254 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7255 &fw_ddb_entry_dma, GFP_KERNEL); 7256 if (!fw_ddb_entry) { 7257 DEBUG2(ql4_printk(KERN_ERR, ha, 7258 "%s: Unable to allocate dma buffer\n", 7259 __func__)); 7260 goto exit_ddb_add; 7261 } 7262 7263 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7264 qla4xxx_sysfs_ddb_is_non_persistent); 7265 if (dev) { 7266 ql4_printk(KERN_ERR, ha, 7267 "%s: A non-persistent entry %s found\n", 7268 __func__, dev->kobj.name); 7269 put_device(dev); 7270 goto exit_ddb_add; 7271 } 7272 7273 /* Index 0 and 1 are reserved for boot target entries */ 7274 for (idx = 2; idx < max_ddbs; idx++) { 7275 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7276 fw_ddb_entry_dma, idx)) 7277 break; 7278 } 7279 7280 if (idx == max_ddbs) 7281 goto exit_ddb_add; 7282 7283 if (!strncasecmp("ipv6", buf, 4)) 7284 options |= IPV6_DEFAULT_DDB_ENTRY; 7285 7286 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7287 if (rval == QLA_ERROR) 7288 goto exit_ddb_add; 7289 7290 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7291 7292 exit_ddb_add: 7293 if (fw_ddb_entry) 7294 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7295 fw_ddb_entry, fw_ddb_entry_dma); 7296 if (rval == QLA_SUCCESS) 7297 return idx; 7298 else 7299 return -EIO; 7300 } 7301 7302 /** 7303 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7304 * @fnode_sess: pointer to session attrs of flash ddb entry 7305 * @fnode_conn: pointer to connection attrs of flash ddb entry 7306 * 7307 * This writes the contents of target ddb buffer to Flash with a valid cookie 7308 * value in order to make the ddb entry persistent. 7309 **/ 7310 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7311 struct iscsi_bus_flash_conn *fnode_conn) 7312 { 7313 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7314 struct scsi_qla_host *ha = to_qla_host(shost); 7315 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7316 struct dev_db_entry *fw_ddb_entry = NULL; 7317 dma_addr_t fw_ddb_entry_dma; 7318 uint32_t options = 0; 7319 int rval = 0; 7320 7321 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7322 &fw_ddb_entry_dma, GFP_KERNEL); 7323 if (!fw_ddb_entry) { 7324 DEBUG2(ql4_printk(KERN_ERR, ha, 7325 "%s: Unable to allocate dma buffer\n", 7326 __func__)); 7327 rval = -ENOMEM; 7328 goto exit_ddb_apply; 7329 } 7330 7331 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7332 options |= IPV6_DEFAULT_DDB_ENTRY; 7333 7334 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7335 if (rval == QLA_ERROR) 7336 goto exit_ddb_apply; 7337 7338 dev_db_start_offset += (fnode_sess->target_id * 7339 sizeof(*fw_ddb_entry)); 7340 7341 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7342 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7343 7344 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7345 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7346 7347 if (rval == QLA_SUCCESS) { 7348 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7349 ql4_printk(KERN_INFO, ha, 7350 "%s: flash node %u of host %lu written to flash\n", 7351 __func__, fnode_sess->target_id, ha->host_no); 7352 } else { 7353 rval = -EIO; 7354 ql4_printk(KERN_ERR, ha, 7355 "%s: Error while writing flash node %u of host %lu to flash\n", 7356 __func__, fnode_sess->target_id, ha->host_no); 7357 } 7358 7359 exit_ddb_apply: 7360 if (fw_ddb_entry) 7361 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7362 fw_ddb_entry, fw_ddb_entry_dma); 7363 return rval; 7364 } 7365 7366 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7367 struct dev_db_entry *fw_ddb_entry, 7368 uint16_t idx) 7369 { 7370 struct dev_db_entry *ddb_entry = NULL; 7371 dma_addr_t ddb_entry_dma; 7372 unsigned long wtime; 7373 uint32_t mbx_sts = 0; 7374 uint32_t state = 0, conn_err = 0; 7375 uint16_t tmo = 0; 7376 int ret = 0; 7377 7378 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7379 &ddb_entry_dma, GFP_KERNEL); 7380 if (!ddb_entry) { 7381 DEBUG2(ql4_printk(KERN_ERR, ha, 7382 "%s: Unable to allocate dma buffer\n", 7383 __func__)); 7384 return QLA_ERROR; 7385 } 7386 7387 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7388 7389 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7390 if (ret != QLA_SUCCESS) { 7391 DEBUG2(ql4_printk(KERN_ERR, ha, 7392 "%s: Unable to set ddb entry for index %d\n", 7393 __func__, idx)); 7394 goto exit_ddb_conn_open; 7395 } 7396 7397 qla4xxx_conn_open(ha, idx); 7398 7399 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7400 tmo = ((ha->def_timeout > LOGIN_TOV) && 7401 (ha->def_timeout < LOGIN_TOV * 10) ? 7402 ha->def_timeout : LOGIN_TOV); 7403 7404 DEBUG2(ql4_printk(KERN_INFO, ha, 7405 "Default time to wait for login to ddb %d\n", tmo)); 7406 7407 wtime = jiffies + (HZ * tmo); 7408 do { 7409 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7410 NULL, &state, &conn_err, NULL, 7411 NULL); 7412 if (ret == QLA_ERROR) 7413 continue; 7414 7415 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7416 state == DDB_DS_SESSION_FAILED) 7417 break; 7418 7419 schedule_timeout_uninterruptible(HZ / 10); 7420 } while (time_after(wtime, jiffies)); 7421 7422 exit_ddb_conn_open: 7423 if (ddb_entry) 7424 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7425 ddb_entry, ddb_entry_dma); 7426 return ret; 7427 } 7428 7429 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7430 struct dev_db_entry *fw_ddb_entry, 7431 uint16_t target_id) 7432 { 7433 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7434 struct list_head list_nt; 7435 uint16_t ddb_index; 7436 int ret = 0; 7437 7438 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7439 ql4_printk(KERN_WARNING, ha, 7440 "%s: A discovery already in progress!\n", __func__); 7441 return QLA_ERROR; 7442 } 7443 7444 INIT_LIST_HEAD(&list_nt); 7445 7446 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7447 7448 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7449 if (ret == QLA_ERROR) 7450 goto exit_login_st_clr_bit; 7451 7452 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7453 if (ret == QLA_ERROR) 7454 goto exit_login_st; 7455 7456 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7457 7458 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7459 list_del_init(&ddb_idx->list); 7460 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7461 vfree(ddb_idx); 7462 } 7463 7464 exit_login_st: 7465 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7466 ql4_printk(KERN_ERR, ha, 7467 "Unable to clear DDB index = 0x%x\n", ddb_index); 7468 } 7469 7470 clear_bit(ddb_index, ha->ddb_idx_map); 7471 7472 exit_login_st_clr_bit: 7473 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7474 return ret; 7475 } 7476 7477 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7478 struct dev_db_entry *fw_ddb_entry, 7479 uint16_t idx) 7480 { 7481 int ret = QLA_ERROR; 7482 7483 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7484 if (ret != QLA_SUCCESS) 7485 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7486 idx); 7487 else 7488 ret = -EPERM; 7489 7490 return ret; 7491 } 7492 7493 /** 7494 * qla4xxx_sysfs_ddb_login - Login to the specified target 7495 * @fnode_sess: pointer to session attrs of flash ddb entry 7496 * @fnode_conn: pointer to connection attrs of flash ddb entry 7497 * 7498 * This logs in to the specified target 7499 **/ 7500 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7501 struct iscsi_bus_flash_conn *fnode_conn) 7502 { 7503 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7504 struct scsi_qla_host *ha = to_qla_host(shost); 7505 struct dev_db_entry *fw_ddb_entry = NULL; 7506 dma_addr_t fw_ddb_entry_dma; 7507 uint32_t options = 0; 7508 int ret = 0; 7509 7510 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7511 ql4_printk(KERN_ERR, ha, 7512 "%s: Target info is not persistent\n", __func__); 7513 ret = -EIO; 7514 goto exit_ddb_login; 7515 } 7516 7517 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7518 &fw_ddb_entry_dma, GFP_KERNEL); 7519 if (!fw_ddb_entry) { 7520 DEBUG2(ql4_printk(KERN_ERR, ha, 7521 "%s: Unable to allocate dma buffer\n", 7522 __func__)); 7523 ret = -ENOMEM; 7524 goto exit_ddb_login; 7525 } 7526 7527 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7528 options |= IPV6_DEFAULT_DDB_ENTRY; 7529 7530 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7531 if (ret == QLA_ERROR) 7532 goto exit_ddb_login; 7533 7534 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7535 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7536 7537 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7538 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7539 fnode_sess->target_id); 7540 else 7541 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7542 fnode_sess->target_id); 7543 7544 if (ret > 0) 7545 ret = -EIO; 7546 7547 exit_ddb_login: 7548 if (fw_ddb_entry) 7549 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7550 fw_ddb_entry, fw_ddb_entry_dma); 7551 return ret; 7552 } 7553 7554 /** 7555 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7556 * @cls_sess: pointer to session to be logged out 7557 * 7558 * This performs session log out from the specified target 7559 **/ 7560 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7561 { 7562 struct iscsi_session *sess; 7563 struct ddb_entry *ddb_entry = NULL; 7564 struct scsi_qla_host *ha; 7565 struct dev_db_entry *fw_ddb_entry = NULL; 7566 dma_addr_t fw_ddb_entry_dma; 7567 unsigned long flags; 7568 unsigned long wtime; 7569 uint32_t ddb_state; 7570 int options; 7571 int ret = 0; 7572 7573 sess = cls_sess->dd_data; 7574 ddb_entry = sess->dd_data; 7575 ha = ddb_entry->ha; 7576 7577 if (ddb_entry->ddb_type != FLASH_DDB) { 7578 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7579 __func__); 7580 ret = -ENXIO; 7581 goto exit_ddb_logout; 7582 } 7583 7584 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7585 ql4_printk(KERN_ERR, ha, 7586 "%s: Logout from boot target entry is not permitted.\n", 7587 __func__); 7588 ret = -EPERM; 7589 goto exit_ddb_logout; 7590 } 7591 7592 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7593 &fw_ddb_entry_dma, GFP_KERNEL); 7594 if (!fw_ddb_entry) { 7595 ql4_printk(KERN_ERR, ha, 7596 "%s: Unable to allocate dma buffer\n", __func__); 7597 ret = -ENOMEM; 7598 goto exit_ddb_logout; 7599 } 7600 7601 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7602 goto ddb_logout_init; 7603 7604 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7605 fw_ddb_entry, fw_ddb_entry_dma, 7606 NULL, NULL, &ddb_state, NULL, 7607 NULL, NULL); 7608 if (ret == QLA_ERROR) 7609 goto ddb_logout_init; 7610 7611 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7612 goto ddb_logout_init; 7613 7614 /* wait until next relogin is triggered using DF_RELOGIN and 7615 * clear DF_RELOGIN to avoid invocation of further relogin 7616 */ 7617 wtime = jiffies + (HZ * RELOGIN_TOV); 7618 do { 7619 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7620 goto ddb_logout_init; 7621 7622 schedule_timeout_uninterruptible(HZ); 7623 } while ((time_after(wtime, jiffies))); 7624 7625 ddb_logout_init: 7626 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7627 atomic_set(&ddb_entry->relogin_timer, 0); 7628 7629 options = LOGOUT_OPTION_CLOSE_SESSION; 7630 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7631 7632 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7633 wtime = jiffies + (HZ * LOGOUT_TOV); 7634 do { 7635 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7636 fw_ddb_entry, fw_ddb_entry_dma, 7637 NULL, NULL, &ddb_state, NULL, 7638 NULL, NULL); 7639 if (ret == QLA_ERROR) 7640 goto ddb_logout_clr_sess; 7641 7642 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7643 (ddb_state == DDB_DS_SESSION_FAILED)) 7644 goto ddb_logout_clr_sess; 7645 7646 schedule_timeout_uninterruptible(HZ); 7647 } while ((time_after(wtime, jiffies))); 7648 7649 ddb_logout_clr_sess: 7650 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7651 /* 7652 * we have decremented the reference count of the driver 7653 * when we setup the session to have the driver unload 7654 * to be seamless without actually destroying the 7655 * session 7656 **/ 7657 try_module_get(qla4xxx_iscsi_transport.owner); 7658 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7659 7660 spin_lock_irqsave(&ha->hardware_lock, flags); 7661 qla4xxx_free_ddb(ha, ddb_entry); 7662 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7663 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7664 7665 iscsi_session_teardown(ddb_entry->sess); 7666 7667 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7668 ret = QLA_SUCCESS; 7669 7670 exit_ddb_logout: 7671 if (fw_ddb_entry) 7672 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7673 fw_ddb_entry, fw_ddb_entry_dma); 7674 return ret; 7675 } 7676 7677 /** 7678 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7679 * @fnode_sess: pointer to session attrs of flash ddb entry 7680 * @fnode_conn: pointer to connection attrs of flash ddb entry 7681 * 7682 * This performs log out from the specified target 7683 **/ 7684 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7685 struct iscsi_bus_flash_conn *fnode_conn) 7686 { 7687 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7688 struct scsi_qla_host *ha = to_qla_host(shost); 7689 struct ql4_tuple_ddb *flash_tddb = NULL; 7690 struct ql4_tuple_ddb *tmp_tddb = NULL; 7691 struct dev_db_entry *fw_ddb_entry = NULL; 7692 struct ddb_entry *ddb_entry = NULL; 7693 dma_addr_t fw_ddb_dma; 7694 uint32_t next_idx = 0; 7695 uint32_t state = 0, conn_err = 0; 7696 uint16_t conn_id = 0; 7697 int idx, index; 7698 int status, ret = 0; 7699 7700 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7701 &fw_ddb_dma); 7702 if (fw_ddb_entry == NULL) { 7703 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7704 ret = -ENOMEM; 7705 goto exit_ddb_logout; 7706 } 7707 7708 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7709 if (!flash_tddb) { 7710 ql4_printk(KERN_WARNING, ha, 7711 "%s:Memory Allocation failed.\n", __func__); 7712 ret = -ENOMEM; 7713 goto exit_ddb_logout; 7714 } 7715 7716 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7717 if (!tmp_tddb) { 7718 ql4_printk(KERN_WARNING, ha, 7719 "%s:Memory Allocation failed.\n", __func__); 7720 ret = -ENOMEM; 7721 goto exit_ddb_logout; 7722 } 7723 7724 if (!fnode_sess->targetname) { 7725 ql4_printk(KERN_ERR, ha, 7726 "%s:Cannot logout from SendTarget entry\n", 7727 __func__); 7728 ret = -EPERM; 7729 goto exit_ddb_logout; 7730 } 7731 7732 if (fnode_sess->is_boot_target) { 7733 ql4_printk(KERN_ERR, ha, 7734 "%s: Logout from boot target entry is not permitted.\n", 7735 __func__); 7736 ret = -EPERM; 7737 goto exit_ddb_logout; 7738 } 7739 7740 strncpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7741 ISCSI_NAME_SIZE); 7742 7743 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7744 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7745 else 7746 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7747 7748 flash_tddb->tpgt = fnode_sess->tpgt; 7749 flash_tddb->port = fnode_conn->port; 7750 7751 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7752 7753 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7754 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7755 if (ddb_entry == NULL) 7756 continue; 7757 7758 if (ddb_entry->ddb_type != FLASH_DDB) 7759 continue; 7760 7761 index = ddb_entry->sess->target_id; 7762 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7763 fw_ddb_dma, NULL, &next_idx, 7764 &state, &conn_err, NULL, 7765 &conn_id); 7766 if (status == QLA_ERROR) { 7767 ret = -ENOMEM; 7768 break; 7769 } 7770 7771 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7772 7773 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7774 true); 7775 if (status == QLA_SUCCESS) { 7776 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7777 break; 7778 } 7779 } 7780 7781 if (idx == MAX_DDB_ENTRIES) 7782 ret = -ESRCH; 7783 7784 exit_ddb_logout: 7785 if (flash_tddb) 7786 vfree(flash_tddb); 7787 if (tmp_tddb) 7788 vfree(tmp_tddb); 7789 if (fw_ddb_entry) 7790 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7791 7792 return ret; 7793 } 7794 7795 static int 7796 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7797 int param, char *buf) 7798 { 7799 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7800 struct scsi_qla_host *ha = to_qla_host(shost); 7801 struct iscsi_bus_flash_conn *fnode_conn; 7802 struct ql4_chap_table chap_tbl; 7803 struct device *dev; 7804 int parent_type; 7805 int rc = 0; 7806 7807 dev = iscsi_find_flashnode_conn(fnode_sess); 7808 if (!dev) 7809 return -EIO; 7810 7811 fnode_conn = iscsi_dev_to_flash_conn(dev); 7812 7813 switch (param) { 7814 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7815 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7816 break; 7817 case ISCSI_FLASHNODE_PORTAL_TYPE: 7818 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7819 break; 7820 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7821 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7822 break; 7823 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7824 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7825 break; 7826 case ISCSI_FLASHNODE_ENTRY_EN: 7827 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7828 break; 7829 case ISCSI_FLASHNODE_HDR_DGST_EN: 7830 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7831 break; 7832 case ISCSI_FLASHNODE_DATA_DGST_EN: 7833 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7834 break; 7835 case ISCSI_FLASHNODE_IMM_DATA_EN: 7836 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7837 break; 7838 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7839 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7840 break; 7841 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7842 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7843 break; 7844 case ISCSI_FLASHNODE_PDU_INORDER: 7845 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7846 break; 7847 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7848 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7849 break; 7850 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7851 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7852 break; 7853 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7854 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7855 break; 7856 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7857 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7858 break; 7859 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7860 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7861 break; 7862 case ISCSI_FLASHNODE_ERL: 7863 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7864 break; 7865 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7866 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7867 break; 7868 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7869 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7870 break; 7871 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7872 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7873 break; 7874 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7875 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7876 break; 7877 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7878 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7879 break; 7880 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7881 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7882 break; 7883 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7884 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7885 break; 7886 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7887 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7888 break; 7889 case ISCSI_FLASHNODE_FIRST_BURST: 7890 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7891 break; 7892 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7893 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7894 break; 7895 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7896 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7897 break; 7898 case ISCSI_FLASHNODE_MAX_R2T: 7899 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7900 break; 7901 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7902 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7903 break; 7904 case ISCSI_FLASHNODE_ISID: 7905 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n", 7906 fnode_sess->isid[0], fnode_sess->isid[1], 7907 fnode_sess->isid[2], fnode_sess->isid[3], 7908 fnode_sess->isid[4], fnode_sess->isid[5]); 7909 break; 7910 case ISCSI_FLASHNODE_TSID: 7911 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7912 break; 7913 case ISCSI_FLASHNODE_PORT: 7914 rc = sprintf(buf, "%d\n", fnode_conn->port); 7915 break; 7916 case ISCSI_FLASHNODE_MAX_BURST: 7917 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7918 break; 7919 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7920 rc = sprintf(buf, "%u\n", 7921 fnode_sess->default_taskmgmt_timeout); 7922 break; 7923 case ISCSI_FLASHNODE_IPADDR: 7924 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7925 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7926 else 7927 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7928 break; 7929 case ISCSI_FLASHNODE_ALIAS: 7930 if (fnode_sess->targetalias) 7931 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7932 else 7933 rc = sprintf(buf, "\n"); 7934 break; 7935 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7936 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7937 rc = sprintf(buf, "%pI6\n", 7938 fnode_conn->redirect_ipaddr); 7939 else 7940 rc = sprintf(buf, "%pI4\n", 7941 fnode_conn->redirect_ipaddr); 7942 break; 7943 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7944 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7945 break; 7946 case ISCSI_FLASHNODE_LOCAL_PORT: 7947 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 7948 break; 7949 case ISCSI_FLASHNODE_IPV4_TOS: 7950 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 7951 break; 7952 case ISCSI_FLASHNODE_IPV6_TC: 7953 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7954 rc = sprintf(buf, "%u\n", 7955 fnode_conn->ipv6_traffic_class); 7956 else 7957 rc = sprintf(buf, "\n"); 7958 break; 7959 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 7960 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 7961 break; 7962 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 7963 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7964 rc = sprintf(buf, "%pI6\n", 7965 fnode_conn->link_local_ipv6_addr); 7966 else 7967 rc = sprintf(buf, "\n"); 7968 break; 7969 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 7970 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 7971 break; 7972 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 7973 if (fnode_sess->discovery_parent_type == DDB_ISNS) 7974 parent_type = ISCSI_DISC_PARENT_ISNS; 7975 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 7976 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 7977 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 7978 parent_type = ISCSI_DISC_PARENT_SENDTGT; 7979 else 7980 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 7981 7982 rc = sprintf(buf, "%s\n", 7983 iscsi_get_discovery_parent_name(parent_type)); 7984 break; 7985 case ISCSI_FLASHNODE_NAME: 7986 if (fnode_sess->targetname) 7987 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 7988 else 7989 rc = sprintf(buf, "\n"); 7990 break; 7991 case ISCSI_FLASHNODE_TPGT: 7992 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 7993 break; 7994 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 7995 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 7996 break; 7997 case ISCSI_FLASHNODE_TCP_RECV_WSF: 7998 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 7999 break; 8000 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8001 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8002 break; 8003 case ISCSI_FLASHNODE_USERNAME: 8004 if (fnode_sess->chap_auth_en) { 8005 qla4xxx_get_uni_chap_at_index(ha, 8006 chap_tbl.name, 8007 chap_tbl.secret, 8008 fnode_sess->chap_out_idx); 8009 rc = sprintf(buf, "%s\n", chap_tbl.name); 8010 } else { 8011 rc = sprintf(buf, "\n"); 8012 } 8013 break; 8014 case ISCSI_FLASHNODE_PASSWORD: 8015 if (fnode_sess->chap_auth_en) { 8016 qla4xxx_get_uni_chap_at_index(ha, 8017 chap_tbl.name, 8018 chap_tbl.secret, 8019 fnode_sess->chap_out_idx); 8020 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8021 } else { 8022 rc = sprintf(buf, "\n"); 8023 } 8024 break; 8025 case ISCSI_FLASHNODE_STATSN: 8026 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8027 break; 8028 case ISCSI_FLASHNODE_EXP_STATSN: 8029 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8030 break; 8031 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8032 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8033 break; 8034 default: 8035 rc = -ENOSYS; 8036 break; 8037 } 8038 8039 put_device(dev); 8040 return rc; 8041 } 8042 8043 /** 8044 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8045 * @fnode_sess: pointer to session attrs of flash ddb entry 8046 * @fnode_conn: pointer to connection attrs of flash ddb entry 8047 * @data: Parameters and their values to update 8048 * @len: len of data 8049 * 8050 * This sets the parameter of flash ddb entry and writes them to flash 8051 **/ 8052 static int 8053 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8054 struct iscsi_bus_flash_conn *fnode_conn, 8055 void *data, int len) 8056 { 8057 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8058 struct scsi_qla_host *ha = to_qla_host(shost); 8059 struct iscsi_flashnode_param_info *fnode_param; 8060 struct ql4_chap_table chap_tbl; 8061 struct nlattr *attr; 8062 uint16_t chap_out_idx = INVALID_ENTRY; 8063 int rc = QLA_ERROR; 8064 uint32_t rem = len; 8065 8066 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8067 nla_for_each_attr(attr, data, len, rem) { 8068 fnode_param = nla_data(attr); 8069 8070 switch (fnode_param->param) { 8071 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8072 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8073 break; 8074 case ISCSI_FLASHNODE_PORTAL_TYPE: 8075 memcpy(fnode_sess->portal_type, fnode_param->value, 8076 strlen(fnode_sess->portal_type)); 8077 break; 8078 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8079 fnode_sess->auto_snd_tgt_disable = 8080 fnode_param->value[0]; 8081 break; 8082 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8083 fnode_sess->discovery_sess = fnode_param->value[0]; 8084 break; 8085 case ISCSI_FLASHNODE_ENTRY_EN: 8086 fnode_sess->entry_state = fnode_param->value[0]; 8087 break; 8088 case ISCSI_FLASHNODE_HDR_DGST_EN: 8089 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8090 break; 8091 case ISCSI_FLASHNODE_DATA_DGST_EN: 8092 fnode_conn->datadgst_en = fnode_param->value[0]; 8093 break; 8094 case ISCSI_FLASHNODE_IMM_DATA_EN: 8095 fnode_sess->imm_data_en = fnode_param->value[0]; 8096 break; 8097 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8098 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8099 break; 8100 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8101 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8102 break; 8103 case ISCSI_FLASHNODE_PDU_INORDER: 8104 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8105 break; 8106 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8107 fnode_sess->chap_auth_en = fnode_param->value[0]; 8108 /* Invalidate chap index if chap auth is disabled */ 8109 if (!fnode_sess->chap_auth_en) 8110 fnode_sess->chap_out_idx = INVALID_ENTRY; 8111 8112 break; 8113 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8114 fnode_conn->snack_req_en = fnode_param->value[0]; 8115 break; 8116 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8117 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8118 break; 8119 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8120 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8121 break; 8122 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8123 fnode_sess->discovery_auth_optional = 8124 fnode_param->value[0]; 8125 break; 8126 case ISCSI_FLASHNODE_ERL: 8127 fnode_sess->erl = fnode_param->value[0]; 8128 break; 8129 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8130 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8131 break; 8132 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8133 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8134 break; 8135 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8136 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8137 break; 8138 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8139 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8140 break; 8141 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8142 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8143 break; 8144 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8145 fnode_conn->fragment_disable = fnode_param->value[0]; 8146 break; 8147 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8148 fnode_conn->max_recv_dlength = 8149 *(unsigned *)fnode_param->value; 8150 break; 8151 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8152 fnode_conn->max_xmit_dlength = 8153 *(unsigned *)fnode_param->value; 8154 break; 8155 case ISCSI_FLASHNODE_FIRST_BURST: 8156 fnode_sess->first_burst = 8157 *(unsigned *)fnode_param->value; 8158 break; 8159 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8160 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8161 break; 8162 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8163 fnode_sess->time2retain = 8164 *(uint16_t *)fnode_param->value; 8165 break; 8166 case ISCSI_FLASHNODE_MAX_R2T: 8167 fnode_sess->max_r2t = 8168 *(uint16_t *)fnode_param->value; 8169 break; 8170 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8171 fnode_conn->keepalive_timeout = 8172 *(uint16_t *)fnode_param->value; 8173 break; 8174 case ISCSI_FLASHNODE_ISID: 8175 memcpy(fnode_sess->isid, fnode_param->value, 8176 sizeof(fnode_sess->isid)); 8177 break; 8178 case ISCSI_FLASHNODE_TSID: 8179 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8180 break; 8181 case ISCSI_FLASHNODE_PORT: 8182 fnode_conn->port = *(uint16_t *)fnode_param->value; 8183 break; 8184 case ISCSI_FLASHNODE_MAX_BURST: 8185 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8186 break; 8187 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8188 fnode_sess->default_taskmgmt_timeout = 8189 *(uint16_t *)fnode_param->value; 8190 break; 8191 case ISCSI_FLASHNODE_IPADDR: 8192 memcpy(fnode_conn->ipaddress, fnode_param->value, 8193 IPv6_ADDR_LEN); 8194 break; 8195 case ISCSI_FLASHNODE_ALIAS: 8196 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8197 (char *)fnode_param->value); 8198 break; 8199 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8200 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8201 IPv6_ADDR_LEN); 8202 break; 8203 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8204 fnode_conn->max_segment_size = 8205 *(unsigned *)fnode_param->value; 8206 break; 8207 case ISCSI_FLASHNODE_LOCAL_PORT: 8208 fnode_conn->local_port = 8209 *(uint16_t *)fnode_param->value; 8210 break; 8211 case ISCSI_FLASHNODE_IPV4_TOS: 8212 fnode_conn->ipv4_tos = fnode_param->value[0]; 8213 break; 8214 case ISCSI_FLASHNODE_IPV6_TC: 8215 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8216 break; 8217 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8218 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8219 break; 8220 case ISCSI_FLASHNODE_NAME: 8221 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8222 (char *)fnode_param->value); 8223 break; 8224 case ISCSI_FLASHNODE_TPGT: 8225 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8226 break; 8227 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8228 memcpy(fnode_conn->link_local_ipv6_addr, 8229 fnode_param->value, IPv6_ADDR_LEN); 8230 break; 8231 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8232 fnode_sess->discovery_parent_idx = 8233 *(uint16_t *)fnode_param->value; 8234 break; 8235 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8236 fnode_conn->tcp_xmit_wsf = 8237 *(uint8_t *)fnode_param->value; 8238 break; 8239 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8240 fnode_conn->tcp_recv_wsf = 8241 *(uint8_t *)fnode_param->value; 8242 break; 8243 case ISCSI_FLASHNODE_STATSN: 8244 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8245 break; 8246 case ISCSI_FLASHNODE_EXP_STATSN: 8247 fnode_conn->exp_statsn = 8248 *(uint32_t *)fnode_param->value; 8249 break; 8250 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8251 chap_out_idx = *(uint16_t *)fnode_param->value; 8252 if (!qla4xxx_get_uni_chap_at_index(ha, 8253 chap_tbl.name, 8254 chap_tbl.secret, 8255 chap_out_idx)) { 8256 fnode_sess->chap_out_idx = chap_out_idx; 8257 /* Enable chap auth if chap index is valid */ 8258 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8259 } 8260 break; 8261 default: 8262 ql4_printk(KERN_ERR, ha, 8263 "%s: No such sysfs attribute\n", __func__); 8264 rc = -ENOSYS; 8265 goto exit_set_param; 8266 } 8267 } 8268 8269 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8270 8271 exit_set_param: 8272 return rc; 8273 } 8274 8275 /** 8276 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8277 * @fnode_sess: pointer to session attrs of flash ddb entry 8278 * 8279 * This invalidates the flash ddb entry at the given index 8280 **/ 8281 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8282 { 8283 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8284 struct scsi_qla_host *ha = to_qla_host(shost); 8285 uint32_t dev_db_start_offset; 8286 uint32_t dev_db_end_offset; 8287 struct dev_db_entry *fw_ddb_entry = NULL; 8288 dma_addr_t fw_ddb_entry_dma; 8289 uint16_t *ddb_cookie = NULL; 8290 size_t ddb_size = 0; 8291 void *pddb = NULL; 8292 int target_id; 8293 int rc = 0; 8294 8295 if (fnode_sess->is_boot_target) { 8296 rc = -EPERM; 8297 DEBUG2(ql4_printk(KERN_ERR, ha, 8298 "%s: Deletion of boot target entry is not permitted.\n", 8299 __func__)); 8300 goto exit_ddb_del; 8301 } 8302 8303 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8304 goto sysfs_ddb_del; 8305 8306 if (is_qla40XX(ha)) { 8307 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8308 dev_db_end_offset = FLASH_OFFSET_DB_END; 8309 dev_db_start_offset += (fnode_sess->target_id * 8310 sizeof(*fw_ddb_entry)); 8311 ddb_size = sizeof(*fw_ddb_entry); 8312 } else { 8313 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8314 (ha->hw.flt_region_ddb << 2); 8315 /* flt_ddb_size is DDB table size for both ports 8316 * so divide it by 2 to calculate the offset for second port 8317 */ 8318 if (ha->port_num == 1) 8319 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8320 8321 dev_db_end_offset = dev_db_start_offset + 8322 (ha->hw.flt_ddb_size / 2); 8323 8324 dev_db_start_offset += (fnode_sess->target_id * 8325 sizeof(*fw_ddb_entry)); 8326 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8327 8328 ddb_size = sizeof(*ddb_cookie); 8329 } 8330 8331 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8332 __func__, dev_db_start_offset, dev_db_end_offset)); 8333 8334 if (dev_db_start_offset > dev_db_end_offset) { 8335 rc = -EIO; 8336 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8337 __func__, fnode_sess->target_id)); 8338 goto exit_ddb_del; 8339 } 8340 8341 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8342 &fw_ddb_entry_dma, GFP_KERNEL); 8343 if (!pddb) { 8344 rc = -ENOMEM; 8345 DEBUG2(ql4_printk(KERN_ERR, ha, 8346 "%s: Unable to allocate dma buffer\n", 8347 __func__)); 8348 goto exit_ddb_del; 8349 } 8350 8351 if (is_qla40XX(ha)) { 8352 fw_ddb_entry = pddb; 8353 memset(fw_ddb_entry, 0, ddb_size); 8354 ddb_cookie = &fw_ddb_entry->cookie; 8355 } else { 8356 ddb_cookie = pddb; 8357 } 8358 8359 /* invalidate the cookie */ 8360 *ddb_cookie = 0xFFEE; 8361 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8362 ddb_size, FLASH_OPT_RMW_COMMIT); 8363 8364 sysfs_ddb_del: 8365 target_id = fnode_sess->target_id; 8366 iscsi_destroy_flashnode_sess(fnode_sess); 8367 ql4_printk(KERN_INFO, ha, 8368 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8369 __func__, target_id, ha->host_no); 8370 exit_ddb_del: 8371 if (pddb) 8372 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8373 fw_ddb_entry_dma); 8374 return rc; 8375 } 8376 8377 /** 8378 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8379 * @ha: pointer to adapter structure 8380 * 8381 * Export the firmware DDB for all send targets and normal targets to sysfs. 8382 **/ 8383 static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8384 { 8385 struct dev_db_entry *fw_ddb_entry = NULL; 8386 dma_addr_t fw_ddb_entry_dma; 8387 uint16_t max_ddbs; 8388 uint16_t idx = 0; 8389 int ret = QLA_SUCCESS; 8390 8391 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8392 sizeof(*fw_ddb_entry), 8393 &fw_ddb_entry_dma, GFP_KERNEL); 8394 if (!fw_ddb_entry) { 8395 DEBUG2(ql4_printk(KERN_ERR, ha, 8396 "%s: Unable to allocate dma buffer\n", 8397 __func__)); 8398 return -ENOMEM; 8399 } 8400 8401 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8402 MAX_DEV_DB_ENTRIES; 8403 8404 for (idx = 0; idx < max_ddbs; idx++) { 8405 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8406 idx)) 8407 continue; 8408 8409 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8410 if (ret) { 8411 ret = -EIO; 8412 break; 8413 } 8414 } 8415 8416 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8417 fw_ddb_entry_dma); 8418 8419 return ret; 8420 } 8421 8422 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8423 { 8424 iscsi_destroy_all_flashnode(ha->host); 8425 } 8426 8427 /** 8428 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8429 * @ha: pointer to adapter structure 8430 * @is_reset: Is this init path or reset path 8431 * 8432 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8433 * using connection open, then create the list of normal targets (nt) 8434 * from firmware DDBs. Based on the list of nt setup session and connection 8435 * objects. 8436 **/ 8437 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8438 { 8439 uint16_t tmo = 0; 8440 struct list_head list_st, list_nt; 8441 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8442 unsigned long wtime; 8443 8444 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8445 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8446 ha->is_reset = is_reset; 8447 return; 8448 } 8449 8450 INIT_LIST_HEAD(&list_st); 8451 INIT_LIST_HEAD(&list_nt); 8452 8453 qla4xxx_build_st_list(ha, &list_st); 8454 8455 /* Before issuing conn open mbox, ensure all IPs states are configured 8456 * Note, conn open fails if IPs are not configured 8457 */ 8458 qla4xxx_wait_for_ip_configuration(ha); 8459 8460 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8461 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8462 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8463 } 8464 8465 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8466 tmo = ((ha->def_timeout > LOGIN_TOV) && 8467 (ha->def_timeout < LOGIN_TOV * 10) ? 8468 ha->def_timeout : LOGIN_TOV); 8469 8470 DEBUG2(ql4_printk(KERN_INFO, ha, 8471 "Default time to wait for build ddb %d\n", tmo)); 8472 8473 wtime = jiffies + (HZ * tmo); 8474 do { 8475 if (list_empty(&list_st)) 8476 break; 8477 8478 qla4xxx_remove_failed_ddb(ha, &list_st); 8479 schedule_timeout_uninterruptible(HZ / 10); 8480 } while (time_after(wtime, jiffies)); 8481 8482 8483 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8484 8485 qla4xxx_free_ddb_list(&list_st); 8486 qla4xxx_free_ddb_list(&list_nt); 8487 8488 qla4xxx_free_ddb_index(ha); 8489 } 8490 8491 /** 8492 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8493 * response. 8494 * @ha: pointer to adapter structure 8495 * 8496 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8497 * set in DDB and we will wait for login response of boot targets during 8498 * probe. 8499 **/ 8500 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8501 { 8502 struct ddb_entry *ddb_entry; 8503 struct dev_db_entry *fw_ddb_entry = NULL; 8504 dma_addr_t fw_ddb_entry_dma; 8505 unsigned long wtime; 8506 uint32_t ddb_state; 8507 int max_ddbs, idx, ret; 8508 8509 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8510 MAX_DEV_DB_ENTRIES; 8511 8512 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8513 &fw_ddb_entry_dma, GFP_KERNEL); 8514 if (!fw_ddb_entry) { 8515 ql4_printk(KERN_ERR, ha, 8516 "%s: Unable to allocate dma buffer\n", __func__); 8517 goto exit_login_resp; 8518 } 8519 8520 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8521 8522 for (idx = 0; idx < max_ddbs; idx++) { 8523 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8524 if (ddb_entry == NULL) 8525 continue; 8526 8527 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8528 DEBUG2(ql4_printk(KERN_INFO, ha, 8529 "%s: DDB index [%d]\n", __func__, 8530 ddb_entry->fw_ddb_index)); 8531 do { 8532 ret = qla4xxx_get_fwddb_entry(ha, 8533 ddb_entry->fw_ddb_index, 8534 fw_ddb_entry, fw_ddb_entry_dma, 8535 NULL, NULL, &ddb_state, NULL, 8536 NULL, NULL); 8537 if (ret == QLA_ERROR) 8538 goto exit_login_resp; 8539 8540 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8541 (ddb_state == DDB_DS_SESSION_FAILED)) 8542 break; 8543 8544 schedule_timeout_uninterruptible(HZ); 8545 8546 } while ((time_after(wtime, jiffies))); 8547 8548 if (!time_after(wtime, jiffies)) { 8549 DEBUG2(ql4_printk(KERN_INFO, ha, 8550 "%s: Login response wait timer expired\n", 8551 __func__)); 8552 goto exit_login_resp; 8553 } 8554 } 8555 } 8556 8557 exit_login_resp: 8558 if (fw_ddb_entry) 8559 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8560 fw_ddb_entry, fw_ddb_entry_dma); 8561 } 8562 8563 /** 8564 * qla4xxx_probe_adapter - callback function to probe HBA 8565 * @pdev: pointer to pci_dev structure 8566 * @pci_device_id: pointer to pci_device entry 8567 * 8568 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8569 * It returns zero if successful. It also initializes all data necessary for 8570 * the driver. 8571 **/ 8572 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8573 const struct pci_device_id *ent) 8574 { 8575 int ret = -ENODEV, status; 8576 struct Scsi_Host *host; 8577 struct scsi_qla_host *ha; 8578 uint8_t init_retry_count = 0; 8579 char buf[34]; 8580 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8581 uint32_t dev_state; 8582 8583 if (pci_enable_device(pdev)) 8584 return -1; 8585 8586 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8587 if (host == NULL) { 8588 printk(KERN_WARNING 8589 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8590 goto probe_disable_device; 8591 } 8592 8593 /* Clear our data area */ 8594 ha = to_qla_host(host); 8595 memset(ha, 0, sizeof(*ha)); 8596 8597 /* Save the information from PCI BIOS. */ 8598 ha->pdev = pdev; 8599 ha->host = host; 8600 ha->host_no = host->host_no; 8601 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8602 8603 pci_enable_pcie_error_reporting(pdev); 8604 8605 /* Setup Runtime configurable options */ 8606 if (is_qla8022(ha)) { 8607 ha->isp_ops = &qla4_82xx_isp_ops; 8608 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8609 ha->qdr_sn_window = -1; 8610 ha->ddr_mn_window = -1; 8611 ha->curr_window = 255; 8612 nx_legacy_intr = &legacy_intr[ha->func_num]; 8613 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8614 ha->nx_legacy_intr.tgt_status_reg = 8615 nx_legacy_intr->tgt_status_reg; 8616 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8617 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8618 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8619 ha->isp_ops = &qla4_83xx_isp_ops; 8620 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8621 } else { 8622 ha->isp_ops = &qla4xxx_isp_ops; 8623 } 8624 8625 if (is_qla80XX(ha)) { 8626 rwlock_init(&ha->hw_lock); 8627 ha->pf_bit = ha->func_num << 16; 8628 /* Set EEH reset type to fundamental if required by hba */ 8629 pdev->needs_freset = 1; 8630 } 8631 8632 /* Configure PCI I/O space. */ 8633 ret = ha->isp_ops->iospace_config(ha); 8634 if (ret) 8635 goto probe_failed_ioconfig; 8636 8637 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8638 pdev->device, pdev->irq, ha->reg); 8639 8640 qla4xxx_config_dma_addressing(ha); 8641 8642 /* Initialize lists and spinlocks. */ 8643 INIT_LIST_HEAD(&ha->free_srb_q); 8644 8645 mutex_init(&ha->mbox_sem); 8646 mutex_init(&ha->chap_sem); 8647 init_completion(&ha->mbx_intr_comp); 8648 init_completion(&ha->disable_acb_comp); 8649 init_completion(&ha->idc_comp); 8650 init_completion(&ha->link_up_comp); 8651 init_completion(&ha->disable_acb_comp); 8652 8653 spin_lock_init(&ha->hardware_lock); 8654 spin_lock_init(&ha->work_lock); 8655 8656 /* Initialize work list */ 8657 INIT_LIST_HEAD(&ha->work_list); 8658 8659 /* Allocate dma buffers */ 8660 if (qla4xxx_mem_alloc(ha)) { 8661 ql4_printk(KERN_WARNING, ha, 8662 "[ERROR] Failed to allocate memory for adapter\n"); 8663 8664 ret = -ENOMEM; 8665 goto probe_failed; 8666 } 8667 8668 host->cmd_per_lun = 3; 8669 host->max_channel = 0; 8670 host->max_lun = MAX_LUNS - 1; 8671 host->max_id = MAX_TARGETS; 8672 host->max_cmd_len = IOCB_MAX_CDB_LEN; 8673 host->can_queue = MAX_SRBS ; 8674 host->transportt = qla4xxx_scsi_transport; 8675 8676 ret = scsi_init_shared_tag_map(host, MAX_SRBS); 8677 if (ret) { 8678 ql4_printk(KERN_WARNING, ha, 8679 "%s: scsi_init_shared_tag_map failed\n", __func__); 8680 goto probe_failed; 8681 } 8682 8683 pci_set_drvdata(pdev, ha); 8684 8685 ret = scsi_add_host(host, &pdev->dev); 8686 if (ret) 8687 goto probe_failed; 8688 8689 if (is_qla80XX(ha)) 8690 qla4_8xxx_get_flash_info(ha); 8691 8692 if (is_qla8032(ha) || is_qla8042(ha)) { 8693 qla4_83xx_read_reset_template(ha); 8694 /* 8695 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8696 * If DONRESET_BIT0 is set, drivers should not set dev_state 8697 * to NEED_RESET. But if NEED_RESET is set, drivers should 8698 * should honor the reset. 8699 */ 8700 if (ql4xdontresethba == 1) 8701 qla4_83xx_set_idc_dontreset(ha); 8702 } 8703 8704 /* 8705 * Initialize the Host adapter request/response queues and 8706 * firmware 8707 * NOTE: interrupts enabled upon successful completion 8708 */ 8709 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8710 8711 /* Dont retry adapter initialization if IRQ allocation failed */ 8712 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8713 goto skip_retry_init; 8714 8715 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8716 init_retry_count++ < MAX_INIT_RETRIES) { 8717 8718 if (is_qla80XX(ha)) { 8719 ha->isp_ops->idc_lock(ha); 8720 dev_state = qla4_8xxx_rd_direct(ha, 8721 QLA8XXX_CRB_DEV_STATE); 8722 ha->isp_ops->idc_unlock(ha); 8723 if (dev_state == QLA8XXX_DEV_FAILED) { 8724 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8725 "initialize adapter. H/W is in failed state\n", 8726 __func__); 8727 break; 8728 } 8729 } 8730 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8731 "(%d)\n", __func__, init_retry_count)); 8732 8733 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8734 continue; 8735 8736 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8737 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8738 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8739 goto skip_retry_init; 8740 } 8741 } 8742 8743 skip_retry_init: 8744 if (!test_bit(AF_ONLINE, &ha->flags)) { 8745 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8746 8747 if ((is_qla8022(ha) && ql4xdontresethba) || 8748 ((is_qla8032(ha) || is_qla8042(ha)) && 8749 qla4_83xx_idc_dontreset(ha))) { 8750 /* Put the device in failed state. */ 8751 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8752 ha->isp_ops->idc_lock(ha); 8753 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8754 QLA8XXX_DEV_FAILED); 8755 ha->isp_ops->idc_unlock(ha); 8756 } 8757 ret = -ENODEV; 8758 goto remove_host; 8759 } 8760 8761 /* Startup the kernel thread for this host adapter. */ 8762 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8763 "qla4xxx_dpc\n", __func__)); 8764 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8765 ha->dpc_thread = create_singlethread_workqueue(buf); 8766 if (!ha->dpc_thread) { 8767 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8768 ret = -ENODEV; 8769 goto remove_host; 8770 } 8771 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8772 8773 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8774 ha->host_no); 8775 if (!ha->task_wq) { 8776 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8777 ret = -ENODEV; 8778 goto remove_host; 8779 } 8780 8781 /* 8782 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8783 * (which is called indirectly by qla4xxx_initialize_adapter), 8784 * so that irqs will be registered after crbinit but before 8785 * mbx_intr_enable. 8786 */ 8787 if (is_qla40XX(ha)) { 8788 ret = qla4xxx_request_irqs(ha); 8789 if (ret) { 8790 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8791 "interrupt %d already in use.\n", pdev->irq); 8792 goto remove_host; 8793 } 8794 } 8795 8796 pci_save_state(ha->pdev); 8797 ha->isp_ops->enable_intrs(ha); 8798 8799 /* Start timer thread. */ 8800 qla4xxx_start_timer(ha, qla4xxx_timer, 1); 8801 8802 set_bit(AF_INIT_DONE, &ha->flags); 8803 8804 qla4_8xxx_alloc_sysfs_attr(ha); 8805 8806 printk(KERN_INFO 8807 " QLogic iSCSI HBA Driver version: %s\n" 8808 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8809 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8810 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8811 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8812 8813 /* Set the driver version */ 8814 if (is_qla80XX(ha)) 8815 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8816 8817 if (qla4xxx_setup_boot_info(ha)) 8818 ql4_printk(KERN_ERR, ha, 8819 "%s: No iSCSI boot target configured\n", __func__); 8820 8821 if (qla4xxx_sysfs_ddb_export(ha)) 8822 ql4_printk(KERN_ERR, ha, 8823 "%s: Error exporting ddb to sysfs\n", __func__); 8824 8825 /* Perform the build ddb list and login to each */ 8826 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8827 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8828 qla4xxx_wait_login_resp_boot_tgt(ha); 8829 8830 qla4xxx_create_chap_list(ha); 8831 8832 qla4xxx_create_ifaces(ha); 8833 return 0; 8834 8835 remove_host: 8836 scsi_remove_host(ha->host); 8837 8838 probe_failed: 8839 qla4xxx_free_adapter(ha); 8840 8841 probe_failed_ioconfig: 8842 pci_disable_pcie_error_reporting(pdev); 8843 scsi_host_put(ha->host); 8844 8845 probe_disable_device: 8846 pci_disable_device(pdev); 8847 8848 return ret; 8849 } 8850 8851 /** 8852 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8853 * @ha: pointer to adapter structure 8854 * 8855 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8856 * so that the other port will not re-initialize while in the process of 8857 * removing the ha due to driver unload or hba hotplug. 8858 **/ 8859 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8860 { 8861 struct scsi_qla_host *other_ha = NULL; 8862 struct pci_dev *other_pdev = NULL; 8863 int fn = ISP4XXX_PCI_FN_2; 8864 8865 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8866 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8867 fn = ISP4XXX_PCI_FN_1; 8868 8869 other_pdev = 8870 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8871 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8872 fn)); 8873 8874 /* Get other_ha if other_pdev is valid and state is enable*/ 8875 if (other_pdev) { 8876 if (atomic_read(&other_pdev->enable_cnt)) { 8877 other_ha = pci_get_drvdata(other_pdev); 8878 if (other_ha) { 8879 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8880 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8881 "Prevent %s reinit\n", __func__, 8882 dev_name(&other_ha->pdev->dev))); 8883 } 8884 } 8885 pci_dev_put(other_pdev); 8886 } 8887 } 8888 8889 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8890 struct ddb_entry *ddb_entry) 8891 { 8892 struct dev_db_entry *fw_ddb_entry = NULL; 8893 dma_addr_t fw_ddb_entry_dma; 8894 unsigned long wtime; 8895 uint32_t ddb_state; 8896 int options; 8897 int status; 8898 8899 options = LOGOUT_OPTION_CLOSE_SESSION; 8900 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8901 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8902 goto clear_ddb; 8903 } 8904 8905 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8906 &fw_ddb_entry_dma, GFP_KERNEL); 8907 if (!fw_ddb_entry) { 8908 ql4_printk(KERN_ERR, ha, 8909 "%s: Unable to allocate dma buffer\n", __func__); 8910 goto clear_ddb; 8911 } 8912 8913 wtime = jiffies + (HZ * LOGOUT_TOV); 8914 do { 8915 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8916 fw_ddb_entry, fw_ddb_entry_dma, 8917 NULL, NULL, &ddb_state, NULL, 8918 NULL, NULL); 8919 if (status == QLA_ERROR) 8920 goto free_ddb; 8921 8922 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8923 (ddb_state == DDB_DS_SESSION_FAILED)) 8924 goto free_ddb; 8925 8926 schedule_timeout_uninterruptible(HZ); 8927 } while ((time_after(wtime, jiffies))); 8928 8929 free_ddb: 8930 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8931 fw_ddb_entry, fw_ddb_entry_dma); 8932 clear_ddb: 8933 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8934 } 8935 8936 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8937 { 8938 struct ddb_entry *ddb_entry; 8939 int idx; 8940 8941 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8942 8943 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8944 if ((ddb_entry != NULL) && 8945 (ddb_entry->ddb_type == FLASH_DDB)) { 8946 8947 qla4xxx_destroy_ddb(ha, ddb_entry); 8948 /* 8949 * we have decremented the reference count of the driver 8950 * when we setup the session to have the driver unload 8951 * to be seamless without actually destroying the 8952 * session 8953 **/ 8954 try_module_get(qla4xxx_iscsi_transport.owner); 8955 iscsi_destroy_endpoint(ddb_entry->conn->ep); 8956 qla4xxx_free_ddb(ha, ddb_entry); 8957 iscsi_session_teardown(ddb_entry->sess); 8958 } 8959 } 8960 } 8961 /** 8962 * qla4xxx_remove_adapter - callback function to remove adapter. 8963 * @pci_dev: PCI device pointer 8964 **/ 8965 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 8966 { 8967 struct scsi_qla_host *ha; 8968 8969 /* 8970 * If the PCI device is disabled then it means probe_adapter had 8971 * failed and resources already cleaned up on probe_adapter exit. 8972 */ 8973 if (!pci_is_enabled(pdev)) 8974 return; 8975 8976 ha = pci_get_drvdata(pdev); 8977 8978 if (is_qla40XX(ha)) 8979 qla4xxx_prevent_other_port_reinit(ha); 8980 8981 /* destroy iface from sysfs */ 8982 qla4xxx_destroy_ifaces(ha); 8983 8984 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 8985 iscsi_boot_destroy_kset(ha->boot_kset); 8986 8987 qla4xxx_destroy_fw_ddb_session(ha); 8988 qla4_8xxx_free_sysfs_attr(ha); 8989 8990 qla4xxx_sysfs_ddb_remove(ha); 8991 scsi_remove_host(ha->host); 8992 8993 qla4xxx_free_adapter(ha); 8994 8995 scsi_host_put(ha->host); 8996 8997 pci_disable_pcie_error_reporting(pdev); 8998 pci_disable_device(pdev); 8999 } 9000 9001 /** 9002 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9003 * @ha: HA context 9004 * 9005 * At exit, the @ha's flags.enable_64bit_addressing set to indicated 9006 * supported addressing method. 9007 */ 9008 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9009 { 9010 int retval; 9011 9012 /* Update our PCI device dma_mask for full 64 bit mask */ 9013 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 9014 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 9015 dev_dbg(&ha->pdev->dev, 9016 "Failed to set 64 bit PCI consistent mask; " 9017 "using 32 bit.\n"); 9018 retval = pci_set_consistent_dma_mask(ha->pdev, 9019 DMA_BIT_MASK(32)); 9020 } 9021 } else 9022 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 9023 } 9024 9025 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 9026 { 9027 struct iscsi_cls_session *cls_sess; 9028 struct iscsi_session *sess; 9029 struct ddb_entry *ddb; 9030 int queue_depth = QL4_DEF_QDEPTH; 9031 9032 cls_sess = starget_to_session(sdev->sdev_target); 9033 sess = cls_sess->dd_data; 9034 ddb = sess->dd_data; 9035 9036 sdev->hostdata = ddb; 9037 sdev->tagged_supported = 1; 9038 9039 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9040 queue_depth = ql4xmaxqdepth; 9041 9042 scsi_activate_tcq(sdev, queue_depth); 9043 return 0; 9044 } 9045 9046 static int qla4xxx_slave_configure(struct scsi_device *sdev) 9047 { 9048 sdev->tagged_supported = 1; 9049 return 0; 9050 } 9051 9052 static void qla4xxx_slave_destroy(struct scsi_device *sdev) 9053 { 9054 scsi_deactivate_tcq(sdev, 1); 9055 } 9056 9057 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 9058 int reason) 9059 { 9060 if (!ql4xqfulltracking) 9061 return -EOPNOTSUPP; 9062 9063 return iscsi_change_queue_depth(sdev, qdepth, reason); 9064 } 9065 9066 /** 9067 * qla4xxx_del_from_active_array - returns an active srb 9068 * @ha: Pointer to host adapter structure. 9069 * @index: index into the active_array 9070 * 9071 * This routine removes and returns the srb at the specified index 9072 **/ 9073 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9074 uint32_t index) 9075 { 9076 struct srb *srb = NULL; 9077 struct scsi_cmnd *cmd = NULL; 9078 9079 cmd = scsi_host_find_tag(ha->host, index); 9080 if (!cmd) 9081 return srb; 9082 9083 srb = (struct srb *)CMD_SP(cmd); 9084 if (!srb) 9085 return srb; 9086 9087 /* update counters */ 9088 if (srb->flags & SRB_DMA_VALID) { 9089 ha->iocb_cnt -= srb->iocb_cnt; 9090 if (srb->cmd) 9091 srb->cmd->host_scribble = 9092 (unsigned char *)(unsigned long) MAX_SRBS; 9093 } 9094 return srb; 9095 } 9096 9097 /** 9098 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9099 * @ha: Pointer to host adapter structure. 9100 * @cmd: Scsi Command to wait on. 9101 * 9102 * This routine waits for the command to be returned by the Firmware 9103 * for some max time. 9104 **/ 9105 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9106 struct scsi_cmnd *cmd) 9107 { 9108 int done = 0; 9109 struct srb *rp; 9110 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9111 int ret = SUCCESS; 9112 9113 /* Dont wait on command if PCI error is being handled 9114 * by PCI AER driver 9115 */ 9116 if (unlikely(pci_channel_offline(ha->pdev)) || 9117 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9118 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9119 ha->host_no, __func__); 9120 return ret; 9121 } 9122 9123 do { 9124 /* Checking to see if its returned to OS */ 9125 rp = (struct srb *) CMD_SP(cmd); 9126 if (rp == NULL) { 9127 done++; 9128 break; 9129 } 9130 9131 msleep(2000); 9132 } while (max_wait_time--); 9133 9134 return done; 9135 } 9136 9137 /** 9138 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9139 * @ha: Pointer to host adapter structure 9140 **/ 9141 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9142 { 9143 unsigned long wait_online; 9144 9145 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9146 while (time_before(jiffies, wait_online)) { 9147 9148 if (adapter_up(ha)) 9149 return QLA_SUCCESS; 9150 9151 msleep(2000); 9152 } 9153 9154 return QLA_ERROR; 9155 } 9156 9157 /** 9158 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9159 * @ha: pointer to HBA 9160 * @t: target id 9161 * @l: lun id 9162 * 9163 * This function waits for all outstanding commands to a lun to complete. It 9164 * returns 0 if all pending commands are returned and 1 otherwise. 9165 **/ 9166 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9167 struct scsi_target *stgt, 9168 struct scsi_device *sdev) 9169 { 9170 int cnt; 9171 int status = 0; 9172 struct scsi_cmnd *cmd; 9173 9174 /* 9175 * Waiting for all commands for the designated target or dev 9176 * in the active array 9177 */ 9178 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9179 cmd = scsi_host_find_tag(ha->host, cnt); 9180 if (cmd && stgt == scsi_target(cmd->device) && 9181 (!sdev || sdev == cmd->device)) { 9182 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9183 status++; 9184 break; 9185 } 9186 } 9187 } 9188 return status; 9189 } 9190 9191 /** 9192 * qla4xxx_eh_abort - callback for abort task. 9193 * @cmd: Pointer to Linux's SCSI command structure 9194 * 9195 * This routine is called by the Linux OS to abort the specified 9196 * command. 9197 **/ 9198 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9199 { 9200 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9201 unsigned int id = cmd->device->id; 9202 unsigned int lun = cmd->device->lun; 9203 unsigned long flags; 9204 struct srb *srb = NULL; 9205 int ret = SUCCESS; 9206 int wait = 0; 9207 9208 ql4_printk(KERN_INFO, ha, 9209 "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 9210 ha->host_no, id, lun, cmd); 9211 9212 spin_lock_irqsave(&ha->hardware_lock, flags); 9213 srb = (struct srb *) CMD_SP(cmd); 9214 if (!srb) { 9215 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9216 return SUCCESS; 9217 } 9218 kref_get(&srb->srb_ref); 9219 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9220 9221 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9222 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 9223 ha->host_no, id, lun)); 9224 ret = FAILED; 9225 } else { 9226 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 9227 ha->host_no, id, lun)); 9228 wait = 1; 9229 } 9230 9231 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9232 9233 /* Wait for command to complete */ 9234 if (wait) { 9235 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9236 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 9237 ha->host_no, id, lun)); 9238 ret = FAILED; 9239 } 9240 } 9241 9242 ql4_printk(KERN_INFO, ha, 9243 "scsi%ld:%d:%d: Abort command - %s\n", 9244 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9245 9246 return ret; 9247 } 9248 9249 /** 9250 * qla4xxx_eh_device_reset - callback for target reset. 9251 * @cmd: Pointer to Linux's SCSI command structure 9252 * 9253 * This routine is called by the Linux OS to reset all luns on the 9254 * specified target. 9255 **/ 9256 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9257 { 9258 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9259 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9260 int ret = FAILED, stat; 9261 9262 if (!ddb_entry) 9263 return ret; 9264 9265 ret = iscsi_block_scsi_eh(cmd); 9266 if (ret) 9267 return ret; 9268 ret = FAILED; 9269 9270 ql4_printk(KERN_INFO, ha, 9271 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 9272 cmd->device->channel, cmd->device->id, cmd->device->lun); 9273 9274 DEBUG2(printk(KERN_INFO 9275 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9276 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9277 cmd, jiffies, cmd->request->timeout / HZ, 9278 ha->dpc_flags, cmd->result, cmd->allowed)); 9279 9280 /* FIXME: wait for hba to go online */ 9281 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9282 if (stat != QLA_SUCCESS) { 9283 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9284 goto eh_dev_reset_done; 9285 } 9286 9287 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9288 cmd->device)) { 9289 ql4_printk(KERN_INFO, ha, 9290 "DEVICE RESET FAILED - waiting for " 9291 "commands.\n"); 9292 goto eh_dev_reset_done; 9293 } 9294 9295 /* Send marker. */ 9296 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9297 MM_LUN_RESET) != QLA_SUCCESS) 9298 goto eh_dev_reset_done; 9299 9300 ql4_printk(KERN_INFO, ha, 9301 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 9302 ha->host_no, cmd->device->channel, cmd->device->id, 9303 cmd->device->lun); 9304 9305 ret = SUCCESS; 9306 9307 eh_dev_reset_done: 9308 9309 return ret; 9310 } 9311 9312 /** 9313 * qla4xxx_eh_target_reset - callback for target reset. 9314 * @cmd: Pointer to Linux's SCSI command structure 9315 * 9316 * This routine is called by the Linux OS to reset the target. 9317 **/ 9318 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9319 { 9320 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9321 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9322 int stat, ret; 9323 9324 if (!ddb_entry) 9325 return FAILED; 9326 9327 ret = iscsi_block_scsi_eh(cmd); 9328 if (ret) 9329 return ret; 9330 9331 starget_printk(KERN_INFO, scsi_target(cmd->device), 9332 "WARM TARGET RESET ISSUED.\n"); 9333 9334 DEBUG2(printk(KERN_INFO 9335 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9336 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9337 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 9338 ha->dpc_flags, cmd->result, cmd->allowed)); 9339 9340 stat = qla4xxx_reset_target(ha, ddb_entry); 9341 if (stat != QLA_SUCCESS) { 9342 starget_printk(KERN_INFO, scsi_target(cmd->device), 9343 "WARM TARGET RESET FAILED.\n"); 9344 return FAILED; 9345 } 9346 9347 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9348 NULL)) { 9349 starget_printk(KERN_INFO, scsi_target(cmd->device), 9350 "WARM TARGET DEVICE RESET FAILED - " 9351 "waiting for commands.\n"); 9352 return FAILED; 9353 } 9354 9355 /* Send marker. */ 9356 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9357 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9358 starget_printk(KERN_INFO, scsi_target(cmd->device), 9359 "WARM TARGET DEVICE RESET FAILED - " 9360 "marker iocb failed.\n"); 9361 return FAILED; 9362 } 9363 9364 starget_printk(KERN_INFO, scsi_target(cmd->device), 9365 "WARM TARGET RESET SUCCEEDED.\n"); 9366 return SUCCESS; 9367 } 9368 9369 /** 9370 * qla4xxx_is_eh_active - check if error handler is running 9371 * @shost: Pointer to SCSI Host struct 9372 * 9373 * This routine finds that if reset host is called in EH 9374 * scenario or from some application like sg_reset 9375 **/ 9376 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9377 { 9378 if (shost->shost_state == SHOST_RECOVERY) 9379 return 1; 9380 return 0; 9381 } 9382 9383 /** 9384 * qla4xxx_eh_host_reset - kernel callback 9385 * @cmd: Pointer to Linux's SCSI command structure 9386 * 9387 * This routine is invoked by the Linux kernel to perform fatal error 9388 * recovery on the specified adapter. 9389 **/ 9390 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9391 { 9392 int return_status = FAILED; 9393 struct scsi_qla_host *ha; 9394 9395 ha = to_qla_host(cmd->device->host); 9396 9397 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9398 qla4_83xx_set_idc_dontreset(ha); 9399 9400 /* 9401 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9402 * protocol drivers, we should not set device_state to NEED_RESET 9403 */ 9404 if (ql4xdontresethba || 9405 ((is_qla8032(ha) || is_qla8042(ha)) && 9406 qla4_83xx_idc_dontreset(ha))) { 9407 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9408 ha->host_no, __func__)); 9409 9410 /* Clear outstanding srb in queues */ 9411 if (qla4xxx_is_eh_active(cmd->device->host)) 9412 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9413 9414 return FAILED; 9415 } 9416 9417 ql4_printk(KERN_INFO, ha, 9418 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 9419 cmd->device->channel, cmd->device->id, cmd->device->lun); 9420 9421 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9422 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9423 "DEAD.\n", ha->host_no, cmd->device->channel, 9424 __func__)); 9425 9426 return FAILED; 9427 } 9428 9429 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9430 if (is_qla80XX(ha)) 9431 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9432 else 9433 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9434 } 9435 9436 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9437 return_status = SUCCESS; 9438 9439 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9440 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9441 9442 return return_status; 9443 } 9444 9445 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9446 { 9447 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9448 uint32_t mbox_sts[MBOX_REG_COUNT]; 9449 struct addr_ctrl_blk_def *acb = NULL; 9450 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9451 int rval = QLA_SUCCESS; 9452 dma_addr_t acb_dma; 9453 9454 acb = dma_alloc_coherent(&ha->pdev->dev, 9455 sizeof(struct addr_ctrl_blk_def), 9456 &acb_dma, GFP_KERNEL); 9457 if (!acb) { 9458 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9459 __func__); 9460 rval = -ENOMEM; 9461 goto exit_port_reset; 9462 } 9463 9464 memset(acb, 0, acb_len); 9465 9466 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9467 if (rval != QLA_SUCCESS) { 9468 rval = -EIO; 9469 goto exit_free_acb; 9470 } 9471 9472 rval = qla4xxx_disable_acb(ha); 9473 if (rval != QLA_SUCCESS) { 9474 rval = -EIO; 9475 goto exit_free_acb; 9476 } 9477 9478 wait_for_completion_timeout(&ha->disable_acb_comp, 9479 DISABLE_ACB_TOV * HZ); 9480 9481 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9482 if (rval != QLA_SUCCESS) { 9483 rval = -EIO; 9484 goto exit_free_acb; 9485 } 9486 9487 exit_free_acb: 9488 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9489 acb, acb_dma); 9490 exit_port_reset: 9491 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9492 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9493 return rval; 9494 } 9495 9496 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9497 { 9498 struct scsi_qla_host *ha = to_qla_host(shost); 9499 int rval = QLA_SUCCESS; 9500 uint32_t idc_ctrl; 9501 9502 if (ql4xdontresethba) { 9503 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9504 __func__)); 9505 rval = -EPERM; 9506 goto exit_host_reset; 9507 } 9508 9509 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9510 goto recover_adapter; 9511 9512 switch (reset_type) { 9513 case SCSI_ADAPTER_RESET: 9514 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9515 break; 9516 case SCSI_FIRMWARE_RESET: 9517 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9518 if (is_qla80XX(ha)) 9519 /* set firmware context reset */ 9520 set_bit(DPC_RESET_HA_FW_CONTEXT, 9521 &ha->dpc_flags); 9522 else { 9523 rval = qla4xxx_context_reset(ha); 9524 goto exit_host_reset; 9525 } 9526 } 9527 break; 9528 } 9529 9530 recover_adapter: 9531 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9532 * reset is issued by application */ 9533 if ((is_qla8032(ha) || is_qla8042(ha)) && 9534 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9535 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9536 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9537 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9538 } 9539 9540 rval = qla4xxx_recover_adapter(ha); 9541 if (rval != QLA_SUCCESS) { 9542 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9543 __func__)); 9544 rval = -EIO; 9545 } 9546 9547 exit_host_reset: 9548 return rval; 9549 } 9550 9551 /* PCI AER driver recovers from all correctable errors w/o 9552 * driver intervention. For uncorrectable errors PCI AER 9553 * driver calls the following device driver's callbacks 9554 * 9555 * - Fatal Errors - link_reset 9556 * - Non-Fatal Errors - driver's pci_error_detected() which 9557 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9558 * 9559 * PCI AER driver calls 9560 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 9561 * returns RECOVERED or NEED_RESET if fw_hung 9562 * NEED_RESET - driver's slot_reset() 9563 * DISCONNECT - device is dead & cannot recover 9564 * RECOVERED - driver's pci_resume() 9565 */ 9566 static pci_ers_result_t 9567 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9568 { 9569 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9570 9571 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9572 ha->host_no, __func__, state); 9573 9574 if (!is_aer_supported(ha)) 9575 return PCI_ERS_RESULT_NONE; 9576 9577 switch (state) { 9578 case pci_channel_io_normal: 9579 clear_bit(AF_EEH_BUSY, &ha->flags); 9580 return PCI_ERS_RESULT_CAN_RECOVER; 9581 case pci_channel_io_frozen: 9582 set_bit(AF_EEH_BUSY, &ha->flags); 9583 qla4xxx_mailbox_premature_completion(ha); 9584 qla4xxx_free_irqs(ha); 9585 pci_disable_device(pdev); 9586 /* Return back all IOs */ 9587 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9588 return PCI_ERS_RESULT_NEED_RESET; 9589 case pci_channel_io_perm_failure: 9590 set_bit(AF_EEH_BUSY, &ha->flags); 9591 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9592 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9593 return PCI_ERS_RESULT_DISCONNECT; 9594 } 9595 return PCI_ERS_RESULT_NEED_RESET; 9596 } 9597 9598 /** 9599 * qla4xxx_pci_mmio_enabled() gets called if 9600 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9601 * and read/write to the device still works. 9602 **/ 9603 static pci_ers_result_t 9604 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9605 { 9606 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9607 9608 if (!is_aer_supported(ha)) 9609 return PCI_ERS_RESULT_NONE; 9610 9611 return PCI_ERS_RESULT_RECOVERED; 9612 } 9613 9614 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9615 { 9616 uint32_t rval = QLA_ERROR; 9617 int fn; 9618 struct pci_dev *other_pdev = NULL; 9619 9620 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9621 9622 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9623 9624 if (test_bit(AF_ONLINE, &ha->flags)) { 9625 clear_bit(AF_ONLINE, &ha->flags); 9626 clear_bit(AF_LINK_UP, &ha->flags); 9627 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9628 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9629 } 9630 9631 fn = PCI_FUNC(ha->pdev->devfn); 9632 if (is_qla8022(ha)) { 9633 while (fn > 0) { 9634 fn--; 9635 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9636 ha->host_no, __func__, fn); 9637 /* Get the pci device given the domain, bus, 9638 * slot/function number */ 9639 other_pdev = pci_get_domain_bus_and_slot( 9640 pci_domain_nr(ha->pdev->bus), 9641 ha->pdev->bus->number, 9642 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9643 fn)); 9644 9645 if (!other_pdev) 9646 continue; 9647 9648 if (atomic_read(&other_pdev->enable_cnt)) { 9649 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9650 ha->host_no, __func__, fn); 9651 pci_dev_put(other_pdev); 9652 break; 9653 } 9654 pci_dev_put(other_pdev); 9655 } 9656 } else { 9657 /* this case is meant for ISP83xx/ISP84xx only */ 9658 if (qla4_83xx_can_perform_reset(ha)) { 9659 /* reset fn as iSCSI is going to perform the reset */ 9660 fn = 0; 9661 } 9662 } 9663 9664 /* The first function on the card, the reset owner will 9665 * start & initialize the firmware. The other functions 9666 * on the card will reset the firmware context 9667 */ 9668 if (!fn) { 9669 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9670 "0x%x is the owner\n", ha->host_no, __func__, 9671 ha->pdev->devfn); 9672 9673 ha->isp_ops->idc_lock(ha); 9674 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9675 QLA8XXX_DEV_COLD); 9676 ha->isp_ops->idc_unlock(ha); 9677 9678 rval = qla4_8xxx_update_idc_reg(ha); 9679 if (rval == QLA_ERROR) { 9680 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9681 ha->host_no, __func__); 9682 ha->isp_ops->idc_lock(ha); 9683 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9684 QLA8XXX_DEV_FAILED); 9685 ha->isp_ops->idc_unlock(ha); 9686 goto exit_error_recovery; 9687 } 9688 9689 clear_bit(AF_FW_RECOVERY, &ha->flags); 9690 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9691 9692 if (rval != QLA_SUCCESS) { 9693 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9694 "FAILED\n", ha->host_no, __func__); 9695 qla4xxx_free_irqs(ha); 9696 ha->isp_ops->idc_lock(ha); 9697 qla4_8xxx_clear_drv_active(ha); 9698 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9699 QLA8XXX_DEV_FAILED); 9700 ha->isp_ops->idc_unlock(ha); 9701 } else { 9702 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9703 "READY\n", ha->host_no, __func__); 9704 ha->isp_ops->idc_lock(ha); 9705 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9706 QLA8XXX_DEV_READY); 9707 /* Clear driver state register */ 9708 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9709 qla4_8xxx_set_drv_active(ha); 9710 ha->isp_ops->idc_unlock(ha); 9711 ha->isp_ops->enable_intrs(ha); 9712 } 9713 } else { 9714 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9715 "the reset owner\n", ha->host_no, __func__, 9716 ha->pdev->devfn); 9717 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9718 QLA8XXX_DEV_READY)) { 9719 clear_bit(AF_FW_RECOVERY, &ha->flags); 9720 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9721 if (rval == QLA_SUCCESS) 9722 ha->isp_ops->enable_intrs(ha); 9723 else 9724 qla4xxx_free_irqs(ha); 9725 9726 ha->isp_ops->idc_lock(ha); 9727 qla4_8xxx_set_drv_active(ha); 9728 ha->isp_ops->idc_unlock(ha); 9729 } 9730 } 9731 exit_error_recovery: 9732 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9733 return rval; 9734 } 9735 9736 static pci_ers_result_t 9737 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9738 { 9739 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9740 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9741 int rc; 9742 9743 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9744 ha->host_no, __func__); 9745 9746 if (!is_aer_supported(ha)) 9747 return PCI_ERS_RESULT_NONE; 9748 9749 /* Restore the saved state of PCIe device - 9750 * BAR registers, PCI Config space, PCIX, MSI, 9751 * IOV states 9752 */ 9753 pci_restore_state(pdev); 9754 9755 /* pci_restore_state() clears the saved_state flag of the device 9756 * save restored state which resets saved_state flag 9757 */ 9758 pci_save_state(pdev); 9759 9760 /* Initialize device or resume if in suspended state */ 9761 rc = pci_enable_device(pdev); 9762 if (rc) { 9763 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9764 "device after reset\n", ha->host_no, __func__); 9765 goto exit_slot_reset; 9766 } 9767 9768 ha->isp_ops->disable_intrs(ha); 9769 9770 if (is_qla80XX(ha)) { 9771 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9772 ret = PCI_ERS_RESULT_RECOVERED; 9773 goto exit_slot_reset; 9774 } else 9775 goto exit_slot_reset; 9776 } 9777 9778 exit_slot_reset: 9779 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9780 "device after reset\n", ha->host_no, __func__, ret); 9781 return ret; 9782 } 9783 9784 static void 9785 qla4xxx_pci_resume(struct pci_dev *pdev) 9786 { 9787 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9788 int ret; 9789 9790 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9791 ha->host_no, __func__); 9792 9793 ret = qla4xxx_wait_for_hba_online(ha); 9794 if (ret != QLA_SUCCESS) { 9795 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9796 "resume I/O from slot/link_reset\n", ha->host_no, 9797 __func__); 9798 } 9799 9800 pci_cleanup_aer_uncorrect_error_status(pdev); 9801 clear_bit(AF_EEH_BUSY, &ha->flags); 9802 } 9803 9804 static const struct pci_error_handlers qla4xxx_err_handler = { 9805 .error_detected = qla4xxx_pci_error_detected, 9806 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9807 .slot_reset = qla4xxx_pci_slot_reset, 9808 .resume = qla4xxx_pci_resume, 9809 }; 9810 9811 static struct pci_device_id qla4xxx_pci_tbl[] = { 9812 { 9813 .vendor = PCI_VENDOR_ID_QLOGIC, 9814 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9815 .subvendor = PCI_ANY_ID, 9816 .subdevice = PCI_ANY_ID, 9817 }, 9818 { 9819 .vendor = PCI_VENDOR_ID_QLOGIC, 9820 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9821 .subvendor = PCI_ANY_ID, 9822 .subdevice = PCI_ANY_ID, 9823 }, 9824 { 9825 .vendor = PCI_VENDOR_ID_QLOGIC, 9826 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9827 .subvendor = PCI_ANY_ID, 9828 .subdevice = PCI_ANY_ID, 9829 }, 9830 { 9831 .vendor = PCI_VENDOR_ID_QLOGIC, 9832 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9833 .subvendor = PCI_ANY_ID, 9834 .subdevice = PCI_ANY_ID, 9835 }, 9836 { 9837 .vendor = PCI_VENDOR_ID_QLOGIC, 9838 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9839 .subvendor = PCI_ANY_ID, 9840 .subdevice = PCI_ANY_ID, 9841 }, 9842 { 9843 .vendor = PCI_VENDOR_ID_QLOGIC, 9844 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9845 .subvendor = PCI_ANY_ID, 9846 .subdevice = PCI_ANY_ID, 9847 }, 9848 {0, 0}, 9849 }; 9850 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9851 9852 static struct pci_driver qla4xxx_pci_driver = { 9853 .name = DRIVER_NAME, 9854 .id_table = qla4xxx_pci_tbl, 9855 .probe = qla4xxx_probe_adapter, 9856 .remove = qla4xxx_remove_adapter, 9857 .err_handler = &qla4xxx_err_handler, 9858 }; 9859 9860 static int __init qla4xxx_module_init(void) 9861 { 9862 int ret; 9863 9864 /* Allocate cache for SRBs. */ 9865 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9866 SLAB_HWCACHE_ALIGN, NULL); 9867 if (srb_cachep == NULL) { 9868 printk(KERN_ERR 9869 "%s: Unable to allocate SRB cache..." 9870 "Failing load!\n", DRIVER_NAME); 9871 ret = -ENOMEM; 9872 goto no_srp_cache; 9873 } 9874 9875 /* Derive version string. */ 9876 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9877 if (ql4xextended_error_logging) 9878 strcat(qla4xxx_version_str, "-debug"); 9879 9880 qla4xxx_scsi_transport = 9881 iscsi_register_transport(&qla4xxx_iscsi_transport); 9882 if (!qla4xxx_scsi_transport){ 9883 ret = -ENODEV; 9884 goto release_srb_cache; 9885 } 9886 9887 ret = pci_register_driver(&qla4xxx_pci_driver); 9888 if (ret) 9889 goto unregister_transport; 9890 9891 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9892 return 0; 9893 9894 unregister_transport: 9895 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9896 release_srb_cache: 9897 kmem_cache_destroy(srb_cachep); 9898 no_srp_cache: 9899 return ret; 9900 } 9901 9902 static void __exit qla4xxx_module_exit(void) 9903 { 9904 pci_unregister_driver(&qla4xxx_pci_driver); 9905 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9906 kmem_cache_destroy(srb_cachep); 9907 } 9908 9909 module_init(qla4xxx_module_init); 9910 module_exit(qla4xxx_module_exit); 9911 9912 MODULE_AUTHOR("QLogic Corporation"); 9913 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9914 MODULE_LICENSE("GPL"); 9915 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9916