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 if (!shost) { 1674 ret = -ENXIO; 1675 pr_err("%s: shost is NULL\n", __func__); 1676 return ERR_PTR(ret); 1677 } 1678 1679 ha = iscsi_host_priv(shost); 1680 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 1681 if (!ep) { 1682 ret = -ENOMEM; 1683 return ERR_PTR(ret); 1684 } 1685 1686 qla_ep = ep->dd_data; 1687 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 1688 if (dst_addr->sa_family == AF_INET) { 1689 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 1690 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 1691 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 1692 (char *)&addr->sin_addr)); 1693 } else if (dst_addr->sa_family == AF_INET6) { 1694 memcpy(&qla_ep->dst_addr, dst_addr, 1695 sizeof(struct sockaddr_in6)); 1696 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 1697 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 1698 (char *)&addr6->sin6_addr)); 1699 } else { 1700 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n", 1701 __func__); 1702 } 1703 1704 qla_ep->host = shost; 1705 1706 return ep; 1707 } 1708 1709 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 1710 { 1711 struct qla_endpoint *qla_ep; 1712 struct scsi_qla_host *ha; 1713 int ret = 0; 1714 1715 qla_ep = ep->dd_data; 1716 ha = to_qla_host(qla_ep->host); 1717 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no)); 1718 1719 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 1720 ret = 1; 1721 1722 return ret; 1723 } 1724 1725 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 1726 { 1727 struct qla_endpoint *qla_ep; 1728 struct scsi_qla_host *ha; 1729 1730 qla_ep = ep->dd_data; 1731 ha = to_qla_host(qla_ep->host); 1732 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1733 ha->host_no)); 1734 iscsi_destroy_endpoint(ep); 1735 } 1736 1737 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 1738 enum iscsi_param param, 1739 char *buf) 1740 { 1741 struct qla_endpoint *qla_ep = ep->dd_data; 1742 struct sockaddr *dst_addr; 1743 struct scsi_qla_host *ha; 1744 1745 ha = to_qla_host(qla_ep->host); 1746 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1747 ha->host_no)); 1748 1749 switch (param) { 1750 case ISCSI_PARAM_CONN_PORT: 1751 case ISCSI_PARAM_CONN_ADDRESS: 1752 if (!qla_ep) 1753 return -ENOTCONN; 1754 1755 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1756 if (!dst_addr) 1757 return -ENOTCONN; 1758 1759 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1760 &qla_ep->dst_addr, param, buf); 1761 default: 1762 return -ENOSYS; 1763 } 1764 } 1765 1766 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 1767 struct iscsi_stats *stats) 1768 { 1769 struct iscsi_session *sess; 1770 struct iscsi_cls_session *cls_sess; 1771 struct ddb_entry *ddb_entry; 1772 struct scsi_qla_host *ha; 1773 struct ql_iscsi_stats *ql_iscsi_stats; 1774 int stats_size; 1775 int ret; 1776 dma_addr_t iscsi_stats_dma; 1777 1778 cls_sess = iscsi_conn_to_session(cls_conn); 1779 sess = cls_sess->dd_data; 1780 ddb_entry = sess->dd_data; 1781 ha = ddb_entry->ha; 1782 1783 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1784 ha->host_no)); 1785 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1786 /* Allocate memory */ 1787 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1788 &iscsi_stats_dma, GFP_KERNEL); 1789 if (!ql_iscsi_stats) { 1790 ql4_printk(KERN_ERR, ha, 1791 "Unable to allocate memory for iscsi stats\n"); 1792 goto exit_get_stats; 1793 } 1794 1795 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 1796 iscsi_stats_dma); 1797 if (ret != QLA_SUCCESS) { 1798 ql4_printk(KERN_ERR, ha, 1799 "Unable to retrieve iscsi stats\n"); 1800 goto free_stats; 1801 } 1802 1803 /* octets */ 1804 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 1805 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 1806 /* xmit pdus */ 1807 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 1808 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 1809 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 1810 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 1811 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 1812 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 1813 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 1814 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 1815 /* recv pdus */ 1816 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 1817 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 1818 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 1819 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 1820 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 1821 stats->logoutrsp_pdus = 1822 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 1823 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 1824 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 1825 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 1826 1827 free_stats: 1828 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 1829 iscsi_stats_dma); 1830 exit_get_stats: 1831 return; 1832 } 1833 1834 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 1835 { 1836 struct iscsi_cls_session *session; 1837 struct iscsi_session *sess; 1838 unsigned long flags; 1839 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 1840 1841 session = starget_to_session(scsi_target(sc->device)); 1842 sess = session->dd_data; 1843 1844 spin_lock_irqsave(&session->lock, flags); 1845 if (session->state == ISCSI_SESSION_FAILED) 1846 ret = BLK_EH_RESET_TIMER; 1847 spin_unlock_irqrestore(&session->lock, flags); 1848 1849 return ret; 1850 } 1851 1852 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 1853 { 1854 struct scsi_qla_host *ha = to_qla_host(shost); 1855 struct iscsi_cls_host *ihost = shost->shost_data; 1856 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 1857 1858 qla4xxx_get_firmware_state(ha); 1859 1860 switch (ha->addl_fw_state & 0x0F00) { 1861 case FW_ADDSTATE_LINK_SPEED_10MBPS: 1862 speed = ISCSI_PORT_SPEED_10MBPS; 1863 break; 1864 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1865 speed = ISCSI_PORT_SPEED_100MBPS; 1866 break; 1867 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1868 speed = ISCSI_PORT_SPEED_1GBPS; 1869 break; 1870 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1871 speed = ISCSI_PORT_SPEED_10GBPS; 1872 break; 1873 } 1874 ihost->port_speed = speed; 1875 } 1876 1877 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1878 { 1879 struct scsi_qla_host *ha = to_qla_host(shost); 1880 struct iscsi_cls_host *ihost = shost->shost_data; 1881 uint32_t state = ISCSI_PORT_STATE_DOWN; 1882 1883 if (test_bit(AF_LINK_UP, &ha->flags)) 1884 state = ISCSI_PORT_STATE_UP; 1885 1886 ihost->port_state = state; 1887 } 1888 1889 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1890 enum iscsi_host_param param, char *buf) 1891 { 1892 struct scsi_qla_host *ha = to_qla_host(shost); 1893 int len; 1894 1895 switch (param) { 1896 case ISCSI_HOST_PARAM_HWADDRESS: 1897 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1898 break; 1899 case ISCSI_HOST_PARAM_IPADDRESS: 1900 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1901 break; 1902 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1903 len = sprintf(buf, "%s\n", ha->name_string); 1904 break; 1905 case ISCSI_HOST_PARAM_PORT_STATE: 1906 qla4xxx_set_port_state(shost); 1907 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1908 break; 1909 case ISCSI_HOST_PARAM_PORT_SPEED: 1910 qla4xxx_set_port_speed(shost); 1911 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1912 break; 1913 default: 1914 return -ENOSYS; 1915 } 1916 1917 return len; 1918 } 1919 1920 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1921 { 1922 if (ha->iface_ipv4) 1923 return; 1924 1925 /* IPv4 */ 1926 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1927 &qla4xxx_iscsi_transport, 1928 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1929 if (!ha->iface_ipv4) 1930 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1931 "iface0.\n"); 1932 } 1933 1934 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1935 { 1936 if (!ha->iface_ipv6_0) 1937 /* IPv6 iface-0 */ 1938 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1939 &qla4xxx_iscsi_transport, 1940 ISCSI_IFACE_TYPE_IPV6, 0, 1941 0); 1942 if (!ha->iface_ipv6_0) 1943 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1944 "iface0.\n"); 1945 1946 if (!ha->iface_ipv6_1) 1947 /* IPv6 iface-1 */ 1948 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1949 &qla4xxx_iscsi_transport, 1950 ISCSI_IFACE_TYPE_IPV6, 1, 1951 0); 1952 if (!ha->iface_ipv6_1) 1953 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1954 "iface1.\n"); 1955 } 1956 1957 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 1958 { 1959 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 1960 qla4xxx_create_ipv4_iface(ha); 1961 1962 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 1963 qla4xxx_create_ipv6_iface(ha); 1964 } 1965 1966 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 1967 { 1968 if (ha->iface_ipv4) { 1969 iscsi_destroy_iface(ha->iface_ipv4); 1970 ha->iface_ipv4 = NULL; 1971 } 1972 } 1973 1974 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 1975 { 1976 if (ha->iface_ipv6_0) { 1977 iscsi_destroy_iface(ha->iface_ipv6_0); 1978 ha->iface_ipv6_0 = NULL; 1979 } 1980 if (ha->iface_ipv6_1) { 1981 iscsi_destroy_iface(ha->iface_ipv6_1); 1982 ha->iface_ipv6_1 = NULL; 1983 } 1984 } 1985 1986 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 1987 { 1988 qla4xxx_destroy_ipv4_iface(ha); 1989 qla4xxx_destroy_ipv6_iface(ha); 1990 } 1991 1992 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 1993 struct iscsi_iface_param_info *iface_param, 1994 struct addr_ctrl_blk *init_fw_cb) 1995 { 1996 /* 1997 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 1998 * iface_num 1 is valid only for IPv6 Addr. 1999 */ 2000 switch (iface_param->param) { 2001 case ISCSI_NET_PARAM_IPV6_ADDR: 2002 if (iface_param->iface_num & 0x1) 2003 /* IPv6 Addr 1 */ 2004 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 2005 sizeof(init_fw_cb->ipv6_addr1)); 2006 else 2007 /* IPv6 Addr 0 */ 2008 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 2009 sizeof(init_fw_cb->ipv6_addr0)); 2010 break; 2011 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 2012 if (iface_param->iface_num & 0x1) 2013 break; 2014 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 2015 sizeof(init_fw_cb->ipv6_if_id)); 2016 break; 2017 case ISCSI_NET_PARAM_IPV6_ROUTER: 2018 if (iface_param->iface_num & 0x1) 2019 break; 2020 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 2021 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2022 break; 2023 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 2024 /* Autocfg applies to even interface */ 2025 if (iface_param->iface_num & 0x1) 2026 break; 2027 2028 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 2029 init_fw_cb->ipv6_addtl_opts &= 2030 cpu_to_le16( 2031 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2032 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 2033 init_fw_cb->ipv6_addtl_opts |= 2034 cpu_to_le16( 2035 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2036 else 2037 ql4_printk(KERN_ERR, ha, 2038 "Invalid autocfg setting for IPv6 addr\n"); 2039 break; 2040 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2041 /* Autocfg applies to even interface */ 2042 if (iface_param->iface_num & 0x1) 2043 break; 2044 2045 if (iface_param->value[0] == 2046 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 2047 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 2048 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2049 else if (iface_param->value[0] == 2050 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 2051 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 2052 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2053 else 2054 ql4_printk(KERN_ERR, ha, 2055 "Invalid autocfg setting for IPv6 linklocal addr\n"); 2056 break; 2057 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 2058 /* Autocfg applies to even interface */ 2059 if (iface_param->iface_num & 0x1) 2060 break; 2061 2062 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 2063 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 2064 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2065 break; 2066 case ISCSI_NET_PARAM_IFACE_ENABLE: 2067 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2068 init_fw_cb->ipv6_opts |= 2069 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 2070 qla4xxx_create_ipv6_iface(ha); 2071 } else { 2072 init_fw_cb->ipv6_opts &= 2073 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 2074 0xFFFF); 2075 qla4xxx_destroy_ipv6_iface(ha); 2076 } 2077 break; 2078 case ISCSI_NET_PARAM_VLAN_TAG: 2079 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 2080 break; 2081 init_fw_cb->ipv6_vlan_tag = 2082 cpu_to_be16(*(uint16_t *)iface_param->value); 2083 break; 2084 case ISCSI_NET_PARAM_VLAN_ENABLED: 2085 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2086 init_fw_cb->ipv6_opts |= 2087 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 2088 else 2089 init_fw_cb->ipv6_opts &= 2090 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 2091 break; 2092 case ISCSI_NET_PARAM_MTU: 2093 init_fw_cb->eth_mtu_size = 2094 cpu_to_le16(*(uint16_t *)iface_param->value); 2095 break; 2096 case ISCSI_NET_PARAM_PORT: 2097 /* Autocfg applies to even interface */ 2098 if (iface_param->iface_num & 0x1) 2099 break; 2100 2101 init_fw_cb->ipv6_port = 2102 cpu_to_le16(*(uint16_t *)iface_param->value); 2103 break; 2104 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2105 if (iface_param->iface_num & 0x1) 2106 break; 2107 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2108 init_fw_cb->ipv6_tcp_opts |= 2109 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2110 else 2111 init_fw_cb->ipv6_tcp_opts &= 2112 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE & 2113 0xFFFF); 2114 break; 2115 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2116 if (iface_param->iface_num & 0x1) 2117 break; 2118 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2119 init_fw_cb->ipv6_tcp_opts |= 2120 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2121 else 2122 init_fw_cb->ipv6_tcp_opts &= 2123 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2124 break; 2125 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2126 if (iface_param->iface_num & 0x1) 2127 break; 2128 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2129 init_fw_cb->ipv6_tcp_opts |= 2130 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2131 else 2132 init_fw_cb->ipv6_tcp_opts &= 2133 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2134 break; 2135 case ISCSI_NET_PARAM_TCP_WSF: 2136 if (iface_param->iface_num & 0x1) 2137 break; 2138 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; 2139 break; 2140 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2141 if (iface_param->iface_num & 0x1) 2142 break; 2143 init_fw_cb->ipv6_tcp_opts &= 2144 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); 2145 init_fw_cb->ipv6_tcp_opts |= 2146 cpu_to_le16((iface_param->value[0] << 1) & 2147 IPV6_TCPOPT_TIMER_SCALE); 2148 break; 2149 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2150 if (iface_param->iface_num & 0x1) 2151 break; 2152 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2153 init_fw_cb->ipv6_tcp_opts |= 2154 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); 2155 else 2156 init_fw_cb->ipv6_tcp_opts &= 2157 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); 2158 break; 2159 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 2160 if (iface_param->iface_num & 0x1) 2161 break; 2162 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2163 init_fw_cb->ipv6_opts |= 2164 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2165 else 2166 init_fw_cb->ipv6_opts &= 2167 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2168 break; 2169 case ISCSI_NET_PARAM_REDIRECT_EN: 2170 if (iface_param->iface_num & 0x1) 2171 break; 2172 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2173 init_fw_cb->ipv6_opts |= 2174 cpu_to_le16(IPV6_OPT_REDIRECT_EN); 2175 else 2176 init_fw_cb->ipv6_opts &= 2177 cpu_to_le16(~IPV6_OPT_REDIRECT_EN); 2178 break; 2179 case ISCSI_NET_PARAM_IPV6_MLD_EN: 2180 if (iface_param->iface_num & 0x1) 2181 break; 2182 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2183 init_fw_cb->ipv6_addtl_opts |= 2184 cpu_to_le16(IPV6_ADDOPT_MLD_EN); 2185 else 2186 init_fw_cb->ipv6_addtl_opts &= 2187 cpu_to_le16(~IPV6_ADDOPT_MLD_EN); 2188 break; 2189 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 2190 if (iface_param->iface_num & 0x1) 2191 break; 2192 init_fw_cb->ipv6_flow_lbl = 2193 cpu_to_le16(*(uint16_t *)iface_param->value); 2194 break; 2195 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 2196 if (iface_param->iface_num & 0x1) 2197 break; 2198 init_fw_cb->ipv6_traffic_class = iface_param->value[0]; 2199 break; 2200 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 2201 if (iface_param->iface_num & 0x1) 2202 break; 2203 init_fw_cb->ipv6_hop_limit = iface_param->value[0]; 2204 break; 2205 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 2206 if (iface_param->iface_num & 0x1) 2207 break; 2208 init_fw_cb->ipv6_nd_reach_time = 2209 cpu_to_le32(*(uint32_t *)iface_param->value); 2210 break; 2211 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 2212 if (iface_param->iface_num & 0x1) 2213 break; 2214 init_fw_cb->ipv6_nd_rexmit_timer = 2215 cpu_to_le32(*(uint32_t *)iface_param->value); 2216 break; 2217 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 2218 if (iface_param->iface_num & 0x1) 2219 break; 2220 init_fw_cb->ipv6_nd_stale_timeout = 2221 cpu_to_le32(*(uint32_t *)iface_param->value); 2222 break; 2223 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 2224 if (iface_param->iface_num & 0x1) 2225 break; 2226 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; 2227 break; 2228 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 2229 if (iface_param->iface_num & 0x1) 2230 break; 2231 init_fw_cb->ipv6_gw_advrt_mtu = 2232 cpu_to_le32(*(uint32_t *)iface_param->value); 2233 break; 2234 default: 2235 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 2236 iface_param->param); 2237 break; 2238 } 2239 } 2240 2241 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 2242 struct iscsi_iface_param_info *iface_param, 2243 struct addr_ctrl_blk *init_fw_cb) 2244 { 2245 switch (iface_param->param) { 2246 case ISCSI_NET_PARAM_IPV4_ADDR: 2247 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 2248 sizeof(init_fw_cb->ipv4_addr)); 2249 break; 2250 case ISCSI_NET_PARAM_IPV4_SUBNET: 2251 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 2252 sizeof(init_fw_cb->ipv4_subnet)); 2253 break; 2254 case ISCSI_NET_PARAM_IPV4_GW: 2255 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 2256 sizeof(init_fw_cb->ipv4_gw_addr)); 2257 break; 2258 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 2259 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 2260 init_fw_cb->ipv4_tcp_opts |= 2261 cpu_to_le16(TCPOPT_DHCP_ENABLE); 2262 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 2263 init_fw_cb->ipv4_tcp_opts &= 2264 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 2265 else 2266 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 2267 break; 2268 case ISCSI_NET_PARAM_IFACE_ENABLE: 2269 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2270 init_fw_cb->ipv4_ip_opts |= 2271 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 2272 qla4xxx_create_ipv4_iface(ha); 2273 } else { 2274 init_fw_cb->ipv4_ip_opts &= 2275 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 2276 0xFFFF); 2277 qla4xxx_destroy_ipv4_iface(ha); 2278 } 2279 break; 2280 case ISCSI_NET_PARAM_VLAN_TAG: 2281 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 2282 break; 2283 init_fw_cb->ipv4_vlan_tag = 2284 cpu_to_be16(*(uint16_t *)iface_param->value); 2285 break; 2286 case ISCSI_NET_PARAM_VLAN_ENABLED: 2287 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2288 init_fw_cb->ipv4_ip_opts |= 2289 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 2290 else 2291 init_fw_cb->ipv4_ip_opts &= 2292 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 2293 break; 2294 case ISCSI_NET_PARAM_MTU: 2295 init_fw_cb->eth_mtu_size = 2296 cpu_to_le16(*(uint16_t *)iface_param->value); 2297 break; 2298 case ISCSI_NET_PARAM_PORT: 2299 init_fw_cb->ipv4_port = 2300 cpu_to_le16(*(uint16_t *)iface_param->value); 2301 break; 2302 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2303 if (iface_param->iface_num & 0x1) 2304 break; 2305 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2306 init_fw_cb->ipv4_tcp_opts |= 2307 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); 2308 else 2309 init_fw_cb->ipv4_tcp_opts &= 2310 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE & 2311 0xFFFF); 2312 break; 2313 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2314 if (iface_param->iface_num & 0x1) 2315 break; 2316 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2317 init_fw_cb->ipv4_tcp_opts |= 2318 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE); 2319 else 2320 init_fw_cb->ipv4_tcp_opts &= 2321 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); 2322 break; 2323 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2324 if (iface_param->iface_num & 0x1) 2325 break; 2326 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2327 init_fw_cb->ipv4_tcp_opts |= 2328 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); 2329 else 2330 init_fw_cb->ipv4_tcp_opts &= 2331 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); 2332 break; 2333 case ISCSI_NET_PARAM_TCP_WSF: 2334 if (iface_param->iface_num & 0x1) 2335 break; 2336 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; 2337 break; 2338 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2339 if (iface_param->iface_num & 0x1) 2340 break; 2341 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); 2342 init_fw_cb->ipv4_tcp_opts |= 2343 cpu_to_le16((iface_param->value[0] << 1) & 2344 TCPOPT_TIMER_SCALE); 2345 break; 2346 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2347 if (iface_param->iface_num & 0x1) 2348 break; 2349 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2350 init_fw_cb->ipv4_tcp_opts |= 2351 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); 2352 else 2353 init_fw_cb->ipv4_tcp_opts &= 2354 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); 2355 break; 2356 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 2357 if (iface_param->iface_num & 0x1) 2358 break; 2359 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2360 init_fw_cb->ipv4_tcp_opts |= 2361 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); 2362 else 2363 init_fw_cb->ipv4_tcp_opts &= 2364 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); 2365 break; 2366 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 2367 if (iface_param->iface_num & 0x1) 2368 break; 2369 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2370 init_fw_cb->ipv4_tcp_opts |= 2371 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); 2372 else 2373 init_fw_cb->ipv4_tcp_opts &= 2374 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); 2375 break; 2376 case ISCSI_NET_PARAM_IPV4_TOS_EN: 2377 if (iface_param->iface_num & 0x1) 2378 break; 2379 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2380 init_fw_cb->ipv4_ip_opts |= 2381 cpu_to_le16(IPOPT_IPV4_TOS_EN); 2382 else 2383 init_fw_cb->ipv4_ip_opts &= 2384 cpu_to_le16(~IPOPT_IPV4_TOS_EN); 2385 break; 2386 case ISCSI_NET_PARAM_IPV4_TOS: 2387 if (iface_param->iface_num & 0x1) 2388 break; 2389 init_fw_cb->ipv4_tos = iface_param->value[0]; 2390 break; 2391 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 2392 if (iface_param->iface_num & 0x1) 2393 break; 2394 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2395 init_fw_cb->ipv4_ip_opts |= 2396 cpu_to_le16(IPOPT_GRAT_ARP_EN); 2397 else 2398 init_fw_cb->ipv4_ip_opts &= 2399 cpu_to_le16(~IPOPT_GRAT_ARP_EN); 2400 break; 2401 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 2402 if (iface_param->iface_num & 0x1) 2403 break; 2404 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2405 init_fw_cb->ipv4_ip_opts |= 2406 cpu_to_le16(IPOPT_ALT_CID_EN); 2407 else 2408 init_fw_cb->ipv4_ip_opts &= 2409 cpu_to_le16(~IPOPT_ALT_CID_EN); 2410 break; 2411 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 2412 if (iface_param->iface_num & 0x1) 2413 break; 2414 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, 2415 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); 2416 init_fw_cb->ipv4_dhcp_alt_cid_len = 2417 strlen(init_fw_cb->ipv4_dhcp_alt_cid); 2418 break; 2419 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 2420 if (iface_param->iface_num & 0x1) 2421 break; 2422 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2423 init_fw_cb->ipv4_ip_opts |= 2424 cpu_to_le16(IPOPT_REQ_VID_EN); 2425 else 2426 init_fw_cb->ipv4_ip_opts &= 2427 cpu_to_le16(~IPOPT_REQ_VID_EN); 2428 break; 2429 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 2430 if (iface_param->iface_num & 0x1) 2431 break; 2432 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2433 init_fw_cb->ipv4_ip_opts |= 2434 cpu_to_le16(IPOPT_USE_VID_EN); 2435 else 2436 init_fw_cb->ipv4_ip_opts &= 2437 cpu_to_le16(~IPOPT_USE_VID_EN); 2438 break; 2439 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 2440 if (iface_param->iface_num & 0x1) 2441 break; 2442 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, 2443 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); 2444 init_fw_cb->ipv4_dhcp_vid_len = 2445 strlen(init_fw_cb->ipv4_dhcp_vid); 2446 break; 2447 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 2448 if (iface_param->iface_num & 0x1) 2449 break; 2450 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2451 init_fw_cb->ipv4_ip_opts |= 2452 cpu_to_le16(IPOPT_LEARN_IQN_EN); 2453 else 2454 init_fw_cb->ipv4_ip_opts &= 2455 cpu_to_le16(~IPOPT_LEARN_IQN_EN); 2456 break; 2457 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 2458 if (iface_param->iface_num & 0x1) 2459 break; 2460 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2461 init_fw_cb->ipv4_ip_opts |= 2462 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); 2463 else 2464 init_fw_cb->ipv4_ip_opts &= 2465 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); 2466 break; 2467 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 2468 if (iface_param->iface_num & 0x1) 2469 break; 2470 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2471 init_fw_cb->ipv4_ip_opts |= 2472 cpu_to_le16(IPOPT_IN_FORWARD_EN); 2473 else 2474 init_fw_cb->ipv4_ip_opts &= 2475 cpu_to_le16(~IPOPT_IN_FORWARD_EN); 2476 break; 2477 case ISCSI_NET_PARAM_REDIRECT_EN: 2478 if (iface_param->iface_num & 0x1) 2479 break; 2480 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2481 init_fw_cb->ipv4_ip_opts |= 2482 cpu_to_le16(IPOPT_ARP_REDIRECT_EN); 2483 else 2484 init_fw_cb->ipv4_ip_opts &= 2485 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); 2486 break; 2487 case ISCSI_NET_PARAM_IPV4_TTL: 2488 if (iface_param->iface_num & 0x1) 2489 break; 2490 init_fw_cb->ipv4_ttl = iface_param->value[0]; 2491 break; 2492 default: 2493 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 2494 iface_param->param); 2495 break; 2496 } 2497 } 2498 2499 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, 2500 struct iscsi_iface_param_info *iface_param, 2501 struct addr_ctrl_blk *init_fw_cb) 2502 { 2503 switch (iface_param->param) { 2504 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 2505 if (iface_param->iface_num & 0x1) 2506 break; 2507 init_fw_cb->def_timeout = 2508 cpu_to_le16(*(uint16_t *)iface_param->value); 2509 break; 2510 case ISCSI_IFACE_PARAM_HDRDGST_EN: 2511 if (iface_param->iface_num & 0x1) 2512 break; 2513 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2514 init_fw_cb->iscsi_opts |= 2515 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); 2516 else 2517 init_fw_cb->iscsi_opts &= 2518 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); 2519 break; 2520 case ISCSI_IFACE_PARAM_DATADGST_EN: 2521 if (iface_param->iface_num & 0x1) 2522 break; 2523 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2524 init_fw_cb->iscsi_opts |= 2525 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); 2526 else 2527 init_fw_cb->iscsi_opts &= 2528 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); 2529 break; 2530 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 2531 if (iface_param->iface_num & 0x1) 2532 break; 2533 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2534 init_fw_cb->iscsi_opts |= 2535 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); 2536 else 2537 init_fw_cb->iscsi_opts &= 2538 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); 2539 break; 2540 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 2541 if (iface_param->iface_num & 0x1) 2542 break; 2543 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2544 init_fw_cb->iscsi_opts |= 2545 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); 2546 else 2547 init_fw_cb->iscsi_opts &= 2548 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); 2549 break; 2550 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 2551 if (iface_param->iface_num & 0x1) 2552 break; 2553 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2554 init_fw_cb->iscsi_opts |= 2555 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); 2556 else 2557 init_fw_cb->iscsi_opts &= 2558 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); 2559 break; 2560 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 2561 if (iface_param->iface_num & 0x1) 2562 break; 2563 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2564 init_fw_cb->iscsi_opts |= 2565 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); 2566 else 2567 init_fw_cb->iscsi_opts &= 2568 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); 2569 break; 2570 case ISCSI_IFACE_PARAM_ERL: 2571 if (iface_param->iface_num & 0x1) 2572 break; 2573 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); 2574 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & 2575 ISCSIOPTS_ERL); 2576 break; 2577 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 2578 if (iface_param->iface_num & 0x1) 2579 break; 2580 init_fw_cb->iscsi_max_pdu_size = 2581 cpu_to_le32(*(uint32_t *)iface_param->value) / 2582 BYTE_UNITS; 2583 break; 2584 case ISCSI_IFACE_PARAM_FIRST_BURST: 2585 if (iface_param->iface_num & 0x1) 2586 break; 2587 init_fw_cb->iscsi_fburst_len = 2588 cpu_to_le32(*(uint32_t *)iface_param->value) / 2589 BYTE_UNITS; 2590 break; 2591 case ISCSI_IFACE_PARAM_MAX_R2T: 2592 if (iface_param->iface_num & 0x1) 2593 break; 2594 init_fw_cb->iscsi_max_outstnd_r2t = 2595 cpu_to_le16(*(uint16_t *)iface_param->value); 2596 break; 2597 case ISCSI_IFACE_PARAM_MAX_BURST: 2598 if (iface_param->iface_num & 0x1) 2599 break; 2600 init_fw_cb->iscsi_max_burst_len = 2601 cpu_to_le32(*(uint32_t *)iface_param->value) / 2602 BYTE_UNITS; 2603 break; 2604 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 2605 if (iface_param->iface_num & 0x1) 2606 break; 2607 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2608 init_fw_cb->iscsi_opts |= 2609 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); 2610 else 2611 init_fw_cb->iscsi_opts &= 2612 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); 2613 break; 2614 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 2615 if (iface_param->iface_num & 0x1) 2616 break; 2617 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2618 init_fw_cb->iscsi_opts |= 2619 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); 2620 else 2621 init_fw_cb->iscsi_opts &= 2622 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); 2623 break; 2624 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 2625 if (iface_param->iface_num & 0x1) 2626 break; 2627 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2628 init_fw_cb->iscsi_opts |= 2629 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); 2630 else 2631 init_fw_cb->iscsi_opts &= 2632 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); 2633 break; 2634 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 2635 if (iface_param->iface_num & 0x1) 2636 break; 2637 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2638 init_fw_cb->iscsi_opts |= 2639 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2640 else 2641 init_fw_cb->iscsi_opts &= 2642 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2643 break; 2644 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 2645 if (iface_param->iface_num & 0x1) 2646 break; 2647 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2648 init_fw_cb->iscsi_opts |= 2649 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2650 else 2651 init_fw_cb->iscsi_opts &= 2652 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2653 break; 2654 default: 2655 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", 2656 iface_param->param); 2657 break; 2658 } 2659 } 2660 2661 static void 2662 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 2663 { 2664 struct addr_ctrl_blk_def *acb; 2665 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 2666 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 2667 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 2668 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 2669 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 2670 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 2671 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 2672 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 2673 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 2674 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 2675 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 2676 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 2677 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 2678 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 2679 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 2680 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 2681 } 2682 2683 static int 2684 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 2685 { 2686 struct scsi_qla_host *ha = to_qla_host(shost); 2687 int rval = 0; 2688 struct iscsi_iface_param_info *iface_param = NULL; 2689 struct addr_ctrl_blk *init_fw_cb = NULL; 2690 dma_addr_t init_fw_cb_dma; 2691 uint32_t mbox_cmd[MBOX_REG_COUNT]; 2692 uint32_t mbox_sts[MBOX_REG_COUNT]; 2693 uint32_t rem = len; 2694 struct nlattr *attr; 2695 2696 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 2697 sizeof(struct addr_ctrl_blk), 2698 &init_fw_cb_dma, GFP_KERNEL); 2699 if (!init_fw_cb) { 2700 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 2701 __func__); 2702 return -ENOMEM; 2703 } 2704 2705 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2706 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 2707 memset(&mbox_sts, 0, sizeof(mbox_sts)); 2708 2709 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 2710 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 2711 rval = -EIO; 2712 goto exit_init_fw_cb; 2713 } 2714 2715 nla_for_each_attr(attr, data, len, rem) { 2716 iface_param = nla_data(attr); 2717 2718 if (iface_param->param_type == ISCSI_NET_PARAM) { 2719 switch (iface_param->iface_type) { 2720 case ISCSI_IFACE_TYPE_IPV4: 2721 switch (iface_param->iface_num) { 2722 case 0: 2723 qla4xxx_set_ipv4(ha, iface_param, 2724 init_fw_cb); 2725 break; 2726 default: 2727 /* Cannot have more than one IPv4 interface */ 2728 ql4_printk(KERN_ERR, ha, 2729 "Invalid IPv4 iface number = %d\n", 2730 iface_param->iface_num); 2731 break; 2732 } 2733 break; 2734 case ISCSI_IFACE_TYPE_IPV6: 2735 switch (iface_param->iface_num) { 2736 case 0: 2737 case 1: 2738 qla4xxx_set_ipv6(ha, iface_param, 2739 init_fw_cb); 2740 break; 2741 default: 2742 /* Cannot have more than two IPv6 interface */ 2743 ql4_printk(KERN_ERR, ha, 2744 "Invalid IPv6 iface number = %d\n", 2745 iface_param->iface_num); 2746 break; 2747 } 2748 break; 2749 default: 2750 ql4_printk(KERN_ERR, ha, 2751 "Invalid iface type\n"); 2752 break; 2753 } 2754 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { 2755 qla4xxx_set_iscsi_param(ha, iface_param, 2756 init_fw_cb); 2757 } else { 2758 continue; 2759 } 2760 } 2761 2762 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 2763 2764 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 2765 sizeof(struct addr_ctrl_blk), 2766 FLASH_OPT_RMW_COMMIT); 2767 if (rval != QLA_SUCCESS) { 2768 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 2769 __func__); 2770 rval = -EIO; 2771 goto exit_init_fw_cb; 2772 } 2773 2774 rval = qla4xxx_disable_acb(ha); 2775 if (rval != QLA_SUCCESS) { 2776 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 2777 __func__); 2778 rval = -EIO; 2779 goto exit_init_fw_cb; 2780 } 2781 2782 wait_for_completion_timeout(&ha->disable_acb_comp, 2783 DISABLE_ACB_TOV * HZ); 2784 2785 qla4xxx_initcb_to_acb(init_fw_cb); 2786 2787 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 2788 if (rval != QLA_SUCCESS) { 2789 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 2790 __func__); 2791 rval = -EIO; 2792 goto exit_init_fw_cb; 2793 } 2794 2795 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2796 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 2797 init_fw_cb_dma); 2798 2799 exit_init_fw_cb: 2800 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 2801 init_fw_cb, init_fw_cb_dma); 2802 2803 return rval; 2804 } 2805 2806 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 2807 enum iscsi_param param, char *buf) 2808 { 2809 struct iscsi_session *sess = cls_sess->dd_data; 2810 struct ddb_entry *ddb_entry = sess->dd_data; 2811 struct scsi_qla_host *ha = ddb_entry->ha; 2812 struct iscsi_cls_conn *cls_conn = ddb_entry->conn; 2813 struct ql4_chap_table chap_tbl; 2814 int rval, len; 2815 uint16_t idx; 2816 2817 memset(&chap_tbl, 0, sizeof(chap_tbl)); 2818 switch (param) { 2819 case ISCSI_PARAM_CHAP_IN_IDX: 2820 rval = qla4xxx_get_chap_index(ha, sess->username_in, 2821 sess->password_in, BIDI_CHAP, 2822 &idx); 2823 if (rval) 2824 len = sprintf(buf, "\n"); 2825 else 2826 len = sprintf(buf, "%hu\n", idx); 2827 break; 2828 case ISCSI_PARAM_CHAP_OUT_IDX: 2829 if (ddb_entry->ddb_type == FLASH_DDB) { 2830 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 2831 idx = ddb_entry->chap_tbl_idx; 2832 rval = QLA_SUCCESS; 2833 } else { 2834 rval = QLA_ERROR; 2835 } 2836 } else { 2837 rval = qla4xxx_get_chap_index(ha, sess->username, 2838 sess->password, 2839 LOCAL_CHAP, &idx); 2840 } 2841 if (rval) 2842 len = sprintf(buf, "\n"); 2843 else 2844 len = sprintf(buf, "%hu\n", idx); 2845 break; 2846 case ISCSI_PARAM_USERNAME: 2847 case ISCSI_PARAM_PASSWORD: 2848 /* First, populate session username and password for FLASH DDB, 2849 * if not already done. This happens when session login fails 2850 * for a FLASH DDB. 2851 */ 2852 if (ddb_entry->ddb_type == FLASH_DDB && 2853 ddb_entry->chap_tbl_idx != INVALID_ENTRY && 2854 !sess->username && !sess->password) { 2855 idx = ddb_entry->chap_tbl_idx; 2856 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 2857 chap_tbl.secret, 2858 idx); 2859 if (!rval) { 2860 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 2861 (char *)chap_tbl.name, 2862 strlen((char *)chap_tbl.name)); 2863 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 2864 (char *)chap_tbl.secret, 2865 chap_tbl.secret_len); 2866 } 2867 } 2868 /* allow fall-through */ 2869 default: 2870 return iscsi_session_get_param(cls_sess, param, buf); 2871 } 2872 2873 return len; 2874 } 2875 2876 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 2877 enum iscsi_param param, char *buf) 2878 { 2879 struct iscsi_conn *conn; 2880 struct qla_conn *qla_conn; 2881 struct sockaddr *dst_addr; 2882 int len = 0; 2883 2884 conn = cls_conn->dd_data; 2885 qla_conn = conn->dd_data; 2886 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 2887 2888 switch (param) { 2889 case ISCSI_PARAM_CONN_PORT: 2890 case ISCSI_PARAM_CONN_ADDRESS: 2891 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 2892 dst_addr, param, buf); 2893 default: 2894 return iscsi_conn_get_param(cls_conn, param, buf); 2895 } 2896 2897 return len; 2898 2899 } 2900 2901 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 2902 { 2903 uint32_t mbx_sts = 0; 2904 uint16_t tmp_ddb_index; 2905 int ret; 2906 2907 get_ddb_index: 2908 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 2909 2910 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 2911 DEBUG2(ql4_printk(KERN_INFO, ha, 2912 "Free DDB index not available\n")); 2913 ret = QLA_ERROR; 2914 goto exit_get_ddb_index; 2915 } 2916 2917 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 2918 goto get_ddb_index; 2919 2920 DEBUG2(ql4_printk(KERN_INFO, ha, 2921 "Found a free DDB index at %d\n", tmp_ddb_index)); 2922 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 2923 if (ret == QLA_ERROR) { 2924 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 2925 ql4_printk(KERN_INFO, ha, 2926 "DDB index = %d not available trying next\n", 2927 tmp_ddb_index); 2928 goto get_ddb_index; 2929 } 2930 DEBUG2(ql4_printk(KERN_INFO, ha, 2931 "Free FW DDB not available\n")); 2932 } 2933 2934 *ddb_index = tmp_ddb_index; 2935 2936 exit_get_ddb_index: 2937 return ret; 2938 } 2939 2940 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 2941 struct ddb_entry *ddb_entry, 2942 char *existing_ipaddr, 2943 char *user_ipaddr) 2944 { 2945 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 2946 char formatted_ipaddr[DDB_IPADDR_LEN]; 2947 int status = QLA_SUCCESS, ret = 0; 2948 2949 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 2950 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2951 '\0', NULL); 2952 if (ret == 0) { 2953 status = QLA_ERROR; 2954 goto out_match; 2955 } 2956 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 2957 } else { 2958 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2959 '\0', NULL); 2960 if (ret == 0) { 2961 status = QLA_ERROR; 2962 goto out_match; 2963 } 2964 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 2965 } 2966 2967 if (strcmp(existing_ipaddr, formatted_ipaddr)) 2968 status = QLA_ERROR; 2969 2970 out_match: 2971 return status; 2972 } 2973 2974 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 2975 struct iscsi_cls_conn *cls_conn) 2976 { 2977 int idx = 0, max_ddbs, rval; 2978 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 2979 struct iscsi_session *sess, *existing_sess; 2980 struct iscsi_conn *conn, *existing_conn; 2981 struct ddb_entry *ddb_entry; 2982 2983 sess = cls_sess->dd_data; 2984 conn = cls_conn->dd_data; 2985 2986 if (sess->targetname == NULL || 2987 conn->persistent_address == NULL || 2988 conn->persistent_port == 0) 2989 return QLA_ERROR; 2990 2991 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 2992 MAX_DEV_DB_ENTRIES; 2993 2994 for (idx = 0; idx < max_ddbs; idx++) { 2995 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 2996 if (ddb_entry == NULL) 2997 continue; 2998 2999 if (ddb_entry->ddb_type != FLASH_DDB) 3000 continue; 3001 3002 existing_sess = ddb_entry->sess->dd_data; 3003 existing_conn = ddb_entry->conn->dd_data; 3004 3005 if (existing_sess->targetname == NULL || 3006 existing_conn->persistent_address == NULL || 3007 existing_conn->persistent_port == 0) 3008 continue; 3009 3010 DEBUG2(ql4_printk(KERN_INFO, ha, 3011 "IQN = %s User IQN = %s\n", 3012 existing_sess->targetname, 3013 sess->targetname)); 3014 3015 DEBUG2(ql4_printk(KERN_INFO, ha, 3016 "IP = %s User IP = %s\n", 3017 existing_conn->persistent_address, 3018 conn->persistent_address)); 3019 3020 DEBUG2(ql4_printk(KERN_INFO, ha, 3021 "Port = %d User Port = %d\n", 3022 existing_conn->persistent_port, 3023 conn->persistent_port)); 3024 3025 if (strcmp(existing_sess->targetname, sess->targetname)) 3026 continue; 3027 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 3028 existing_conn->persistent_address, 3029 conn->persistent_address); 3030 if (rval == QLA_ERROR) 3031 continue; 3032 if (existing_conn->persistent_port != conn->persistent_port) 3033 continue; 3034 break; 3035 } 3036 3037 if (idx == max_ddbs) 3038 return QLA_ERROR; 3039 3040 DEBUG2(ql4_printk(KERN_INFO, ha, 3041 "Match found in fwdb sessions\n")); 3042 return QLA_SUCCESS; 3043 } 3044 3045 static struct iscsi_cls_session * 3046 qla4xxx_session_create(struct iscsi_endpoint *ep, 3047 uint16_t cmds_max, uint16_t qdepth, 3048 uint32_t initial_cmdsn) 3049 { 3050 struct iscsi_cls_session *cls_sess; 3051 struct scsi_qla_host *ha; 3052 struct qla_endpoint *qla_ep; 3053 struct ddb_entry *ddb_entry; 3054 uint16_t ddb_index; 3055 struct iscsi_session *sess; 3056 struct sockaddr *dst_addr; 3057 int ret; 3058 3059 if (!ep) { 3060 printk(KERN_ERR "qla4xxx: missing ep.\n"); 3061 return NULL; 3062 } 3063 3064 qla_ep = ep->dd_data; 3065 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 3066 ha = to_qla_host(qla_ep->host); 3067 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3068 ha->host_no)); 3069 3070 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 3071 if (ret == QLA_ERROR) 3072 return NULL; 3073 3074 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 3075 cmds_max, sizeof(struct ddb_entry), 3076 sizeof(struct ql4_task_data), 3077 initial_cmdsn, ddb_index); 3078 if (!cls_sess) 3079 return NULL; 3080 3081 sess = cls_sess->dd_data; 3082 ddb_entry = sess->dd_data; 3083 ddb_entry->fw_ddb_index = ddb_index; 3084 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 3085 ddb_entry->ha = ha; 3086 ddb_entry->sess = cls_sess; 3087 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 3088 ddb_entry->ddb_change = qla4xxx_ddb_change; 3089 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); 3090 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 3091 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 3092 ha->tot_ddbs++; 3093 3094 return cls_sess; 3095 } 3096 3097 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 3098 { 3099 struct iscsi_session *sess; 3100 struct ddb_entry *ddb_entry; 3101 struct scsi_qla_host *ha; 3102 unsigned long flags, wtime; 3103 struct dev_db_entry *fw_ddb_entry = NULL; 3104 dma_addr_t fw_ddb_entry_dma; 3105 uint32_t ddb_state; 3106 int ret; 3107 3108 sess = cls_sess->dd_data; 3109 ddb_entry = sess->dd_data; 3110 ha = ddb_entry->ha; 3111 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3112 ha->host_no)); 3113 3114 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3115 &fw_ddb_entry_dma, GFP_KERNEL); 3116 if (!fw_ddb_entry) { 3117 ql4_printk(KERN_ERR, ha, 3118 "%s: Unable to allocate dma buffer\n", __func__); 3119 goto destroy_session; 3120 } 3121 3122 wtime = jiffies + (HZ * LOGOUT_TOV); 3123 do { 3124 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 3125 fw_ddb_entry, fw_ddb_entry_dma, 3126 NULL, NULL, &ddb_state, NULL, 3127 NULL, NULL); 3128 if (ret == QLA_ERROR) 3129 goto destroy_session; 3130 3131 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 3132 (ddb_state == DDB_DS_SESSION_FAILED)) 3133 goto destroy_session; 3134 3135 schedule_timeout_uninterruptible(HZ); 3136 } while ((time_after(wtime, jiffies))); 3137 3138 destroy_session: 3139 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 3140 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) 3141 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 3142 spin_lock_irqsave(&ha->hardware_lock, flags); 3143 qla4xxx_free_ddb(ha, ddb_entry); 3144 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3145 3146 iscsi_session_teardown(cls_sess); 3147 3148 if (fw_ddb_entry) 3149 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3150 fw_ddb_entry, fw_ddb_entry_dma); 3151 } 3152 3153 static struct iscsi_cls_conn * 3154 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 3155 { 3156 struct iscsi_cls_conn *cls_conn; 3157 struct iscsi_session *sess; 3158 struct ddb_entry *ddb_entry; 3159 struct scsi_qla_host *ha; 3160 3161 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 3162 conn_idx); 3163 if (!cls_conn) { 3164 pr_info("%s: Can not create connection for conn_idx = %u\n", 3165 __func__, conn_idx); 3166 return NULL; 3167 } 3168 3169 sess = cls_sess->dd_data; 3170 ddb_entry = sess->dd_data; 3171 ddb_entry->conn = cls_conn; 3172 3173 ha = ddb_entry->ha; 3174 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__, 3175 conn_idx)); 3176 return cls_conn; 3177 } 3178 3179 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 3180 struct iscsi_cls_conn *cls_conn, 3181 uint64_t transport_fd, int is_leading) 3182 { 3183 struct iscsi_conn *conn; 3184 struct qla_conn *qla_conn; 3185 struct iscsi_endpoint *ep; 3186 struct ddb_entry *ddb_entry; 3187 struct scsi_qla_host *ha; 3188 struct iscsi_session *sess; 3189 3190 sess = cls_session->dd_data; 3191 ddb_entry = sess->dd_data; 3192 ha = ddb_entry->ha; 3193 3194 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3195 cls_session->sid, cls_conn->cid)); 3196 3197 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 3198 return -EINVAL; 3199 ep = iscsi_lookup_endpoint(transport_fd); 3200 conn = cls_conn->dd_data; 3201 qla_conn = conn->dd_data; 3202 qla_conn->qla_ep = ep->dd_data; 3203 return 0; 3204 } 3205 3206 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3207 { 3208 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3209 struct iscsi_session *sess; 3210 struct ddb_entry *ddb_entry; 3211 struct scsi_qla_host *ha; 3212 struct dev_db_entry *fw_ddb_entry = NULL; 3213 dma_addr_t fw_ddb_entry_dma; 3214 uint32_t mbx_sts = 0; 3215 int ret = 0; 3216 int status = QLA_SUCCESS; 3217 3218 sess = cls_sess->dd_data; 3219 ddb_entry = sess->dd_data; 3220 ha = ddb_entry->ha; 3221 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3222 cls_sess->sid, cls_conn->cid)); 3223 3224 /* Check if we have matching FW DDB, if yes then do not 3225 * login to this target. This could cause target to logout previous 3226 * connection 3227 */ 3228 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3229 if (ret == QLA_SUCCESS) { 3230 ql4_printk(KERN_INFO, ha, 3231 "Session already exist in FW.\n"); 3232 ret = -EEXIST; 3233 goto exit_conn_start; 3234 } 3235 3236 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3237 &fw_ddb_entry_dma, GFP_KERNEL); 3238 if (!fw_ddb_entry) { 3239 ql4_printk(KERN_ERR, ha, 3240 "%s: Unable to allocate dma buffer\n", __func__); 3241 ret = -ENOMEM; 3242 goto exit_conn_start; 3243 } 3244 3245 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3246 if (ret) { 3247 /* If iscsid is stopped and started then no need to do 3248 * set param again since ddb state will be already 3249 * active and FW does not allow set ddb to an 3250 * active session. 3251 */ 3252 if (mbx_sts) 3253 if (ddb_entry->fw_ddb_device_state == 3254 DDB_DS_SESSION_ACTIVE) { 3255 ddb_entry->unblock_sess(ddb_entry->sess); 3256 goto exit_set_param; 3257 } 3258 3259 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3260 __func__, ddb_entry->fw_ddb_index); 3261 goto exit_conn_start; 3262 } 3263 3264 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3265 if (status == QLA_ERROR) { 3266 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3267 sess->targetname); 3268 ret = -EINVAL; 3269 goto exit_conn_start; 3270 } 3271 3272 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3273 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3274 3275 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3276 ddb_entry->fw_ddb_device_state)); 3277 3278 exit_set_param: 3279 ret = 0; 3280 3281 exit_conn_start: 3282 if (fw_ddb_entry) 3283 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3284 fw_ddb_entry, fw_ddb_entry_dma); 3285 return ret; 3286 } 3287 3288 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3289 { 3290 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3291 struct iscsi_session *sess; 3292 struct scsi_qla_host *ha; 3293 struct ddb_entry *ddb_entry; 3294 int options; 3295 3296 sess = cls_sess->dd_data; 3297 ddb_entry = sess->dd_data; 3298 ha = ddb_entry->ha; 3299 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, 3300 cls_conn->cid)); 3301 3302 options = LOGOUT_OPTION_CLOSE_SESSION; 3303 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3304 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3305 } 3306 3307 static void qla4xxx_task_work(struct work_struct *wdata) 3308 { 3309 struct ql4_task_data *task_data; 3310 struct scsi_qla_host *ha; 3311 struct passthru_status *sts; 3312 struct iscsi_task *task; 3313 struct iscsi_hdr *hdr; 3314 uint8_t *data; 3315 uint32_t data_len; 3316 struct iscsi_conn *conn; 3317 int hdr_len; 3318 itt_t itt; 3319 3320 task_data = container_of(wdata, struct ql4_task_data, task_work); 3321 ha = task_data->ha; 3322 task = task_data->task; 3323 sts = &task_data->sts; 3324 hdr_len = sizeof(struct iscsi_hdr); 3325 3326 DEBUG3(printk(KERN_INFO "Status returned\n")); 3327 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3328 DEBUG3(printk(KERN_INFO "Response buffer")); 3329 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3330 3331 conn = task->conn; 3332 3333 switch (sts->completionStatus) { 3334 case PASSTHRU_STATUS_COMPLETE: 3335 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3336 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3337 itt = sts->handle; 3338 hdr->itt = itt; 3339 data = task_data->resp_buffer + hdr_len; 3340 data_len = task_data->resp_len - hdr_len; 3341 iscsi_complete_pdu(conn, hdr, data, data_len); 3342 break; 3343 default: 3344 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3345 sts->completionStatus); 3346 break; 3347 } 3348 return; 3349 } 3350 3351 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3352 { 3353 struct ql4_task_data *task_data; 3354 struct iscsi_session *sess; 3355 struct ddb_entry *ddb_entry; 3356 struct scsi_qla_host *ha; 3357 int hdr_len; 3358 3359 sess = task->conn->session; 3360 ddb_entry = sess->dd_data; 3361 ha = ddb_entry->ha; 3362 task_data = task->dd_data; 3363 memset(task_data, 0, sizeof(struct ql4_task_data)); 3364 3365 if (task->sc) { 3366 ql4_printk(KERN_INFO, ha, 3367 "%s: SCSI Commands not implemented\n", __func__); 3368 return -EINVAL; 3369 } 3370 3371 hdr_len = sizeof(struct iscsi_hdr); 3372 task_data->ha = ha; 3373 task_data->task = task; 3374 3375 if (task->data_count) { 3376 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3377 task->data_count, 3378 PCI_DMA_TODEVICE); 3379 } 3380 3381 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3382 __func__, task->conn->max_recv_dlength, hdr_len)); 3383 3384 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3385 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3386 task_data->resp_len, 3387 &task_data->resp_dma, 3388 GFP_ATOMIC); 3389 if (!task_data->resp_buffer) 3390 goto exit_alloc_pdu; 3391 3392 task_data->req_len = task->data_count + hdr_len; 3393 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3394 task_data->req_len, 3395 &task_data->req_dma, 3396 GFP_ATOMIC); 3397 if (!task_data->req_buffer) 3398 goto exit_alloc_pdu; 3399 3400 task->hdr = task_data->req_buffer; 3401 3402 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3403 3404 return 0; 3405 3406 exit_alloc_pdu: 3407 if (task_data->resp_buffer) 3408 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3409 task_data->resp_buffer, task_data->resp_dma); 3410 3411 if (task_data->req_buffer) 3412 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3413 task_data->req_buffer, task_data->req_dma); 3414 return -ENOMEM; 3415 } 3416 3417 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3418 { 3419 struct ql4_task_data *task_data; 3420 struct iscsi_session *sess; 3421 struct ddb_entry *ddb_entry; 3422 struct scsi_qla_host *ha; 3423 int hdr_len; 3424 3425 hdr_len = sizeof(struct iscsi_hdr); 3426 sess = task->conn->session; 3427 ddb_entry = sess->dd_data; 3428 ha = ddb_entry->ha; 3429 task_data = task->dd_data; 3430 3431 if (task->data_count) { 3432 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3433 task->data_count, PCI_DMA_TODEVICE); 3434 } 3435 3436 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3437 __func__, task->conn->max_recv_dlength, hdr_len)); 3438 3439 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3440 task_data->resp_buffer, task_data->resp_dma); 3441 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3442 task_data->req_buffer, task_data->req_dma); 3443 return; 3444 } 3445 3446 static int qla4xxx_task_xmit(struct iscsi_task *task) 3447 { 3448 struct scsi_cmnd *sc = task->sc; 3449 struct iscsi_session *sess = task->conn->session; 3450 struct ddb_entry *ddb_entry = sess->dd_data; 3451 struct scsi_qla_host *ha = ddb_entry->ha; 3452 3453 if (!sc) 3454 return qla4xxx_send_passthru0(task); 3455 3456 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3457 __func__); 3458 return -ENOSYS; 3459 } 3460 3461 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3462 struct iscsi_bus_flash_conn *conn, 3463 struct dev_db_entry *fw_ddb_entry) 3464 { 3465 unsigned long options = 0; 3466 int rc = 0; 3467 3468 options = le16_to_cpu(fw_ddb_entry->options); 3469 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3470 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3471 rc = iscsi_switch_str_param(&sess->portal_type, 3472 PORTAL_TYPE_IPV6); 3473 if (rc) 3474 goto exit_copy; 3475 } else { 3476 rc = iscsi_switch_str_param(&sess->portal_type, 3477 PORTAL_TYPE_IPV4); 3478 if (rc) 3479 goto exit_copy; 3480 } 3481 3482 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3483 &options); 3484 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3485 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3486 3487 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3488 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3489 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3490 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3491 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3492 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3493 &options); 3494 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3495 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3496 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3497 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3498 &options); 3499 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3500 sess->discovery_auth_optional = 3501 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3502 if (test_bit(ISCSIOPT_ERL1, &options)) 3503 sess->erl |= BIT_1; 3504 if (test_bit(ISCSIOPT_ERL0, &options)) 3505 sess->erl |= BIT_0; 3506 3507 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3508 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3509 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3510 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3511 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3512 conn->tcp_timer_scale |= BIT_3; 3513 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3514 conn->tcp_timer_scale |= BIT_2; 3515 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3516 conn->tcp_timer_scale |= BIT_1; 3517 3518 conn->tcp_timer_scale >>= 1; 3519 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3520 3521 options = le16_to_cpu(fw_ddb_entry->ip_options); 3522 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3523 3524 conn->max_recv_dlength = BYTE_UNITS * 3525 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3526 conn->max_xmit_dlength = BYTE_UNITS * 3527 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3528 sess->first_burst = BYTE_UNITS * 3529 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3530 sess->max_burst = BYTE_UNITS * 3531 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3532 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3533 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3534 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3535 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3536 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3537 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3538 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3539 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3540 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3541 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3542 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3543 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3544 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3545 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3546 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3547 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3548 3549 sess->default_taskmgmt_timeout = 3550 le16_to_cpu(fw_ddb_entry->def_timeout); 3551 conn->port = le16_to_cpu(fw_ddb_entry->port); 3552 3553 options = le16_to_cpu(fw_ddb_entry->options); 3554 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3555 if (!conn->ipaddress) { 3556 rc = -ENOMEM; 3557 goto exit_copy; 3558 } 3559 3560 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3561 if (!conn->redirect_ipaddr) { 3562 rc = -ENOMEM; 3563 goto exit_copy; 3564 } 3565 3566 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3567 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3568 3569 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3570 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3571 3572 conn->link_local_ipv6_addr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3573 if (!conn->link_local_ipv6_addr) { 3574 rc = -ENOMEM; 3575 goto exit_copy; 3576 } 3577 3578 memcpy(conn->link_local_ipv6_addr, 3579 fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN); 3580 } else { 3581 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3582 } 3583 3584 if (fw_ddb_entry->iscsi_name[0]) { 3585 rc = iscsi_switch_str_param(&sess->targetname, 3586 (char *)fw_ddb_entry->iscsi_name); 3587 if (rc) 3588 goto exit_copy; 3589 } 3590 3591 if (fw_ddb_entry->iscsi_alias[0]) { 3592 rc = iscsi_switch_str_param(&sess->targetalias, 3593 (char *)fw_ddb_entry->iscsi_alias); 3594 if (rc) 3595 goto exit_copy; 3596 } 3597 3598 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3599 3600 exit_copy: 3601 return rc; 3602 } 3603 3604 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3605 struct iscsi_bus_flash_conn *conn, 3606 struct dev_db_entry *fw_ddb_entry) 3607 { 3608 uint16_t options; 3609 int rc = 0; 3610 3611 options = le16_to_cpu(fw_ddb_entry->options); 3612 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3613 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3614 options |= BIT_8; 3615 else 3616 options &= ~BIT_8; 3617 3618 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3619 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3620 SET_BITVAL(sess->entry_state, options, BIT_3); 3621 fw_ddb_entry->options = cpu_to_le16(options); 3622 3623 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3624 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3625 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3626 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3627 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3628 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3629 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3630 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3631 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3632 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3633 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3634 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3635 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3636 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3637 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3638 3639 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3640 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3641 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3642 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3643 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3644 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3645 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3646 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3647 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3648 3649 options = le16_to_cpu(fw_ddb_entry->ip_options); 3650 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3651 fw_ddb_entry->ip_options = cpu_to_le16(options); 3652 3653 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3654 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3655 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3656 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3657 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3658 fw_ddb_entry->iscsi_first_burst_len = 3659 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3660 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3661 BYTE_UNITS); 3662 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3663 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3664 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3665 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3666 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3667 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3668 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3669 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3670 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3671 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3672 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3673 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3674 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3675 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3676 fw_ddb_entry->port = cpu_to_le16(conn->port); 3677 fw_ddb_entry->def_timeout = 3678 cpu_to_le16(sess->default_taskmgmt_timeout); 3679 3680 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3681 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3682 else 3683 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3684 3685 if (conn->ipaddress) 3686 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3687 sizeof(fw_ddb_entry->ip_addr)); 3688 3689 if (conn->redirect_ipaddr) 3690 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3691 sizeof(fw_ddb_entry->tgt_addr)); 3692 3693 if (conn->link_local_ipv6_addr) 3694 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3695 conn->link_local_ipv6_addr, 3696 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3697 3698 if (sess->targetname) 3699 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3700 sizeof(fw_ddb_entry->iscsi_name)); 3701 3702 if (sess->targetalias) 3703 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3704 sizeof(fw_ddb_entry->iscsi_alias)); 3705 3706 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3707 3708 return rc; 3709 } 3710 3711 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3712 struct iscsi_session *sess, 3713 struct dev_db_entry *fw_ddb_entry) 3714 { 3715 unsigned long options = 0; 3716 uint16_t ddb_link; 3717 uint16_t disc_parent; 3718 char ip_addr[DDB_IPADDR_LEN]; 3719 3720 options = le16_to_cpu(fw_ddb_entry->options); 3721 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3722 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3723 &options); 3724 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3725 3726 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3727 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3728 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3729 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3730 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3731 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3732 &options); 3733 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3734 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3735 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3736 &options); 3737 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3738 sess->discovery_auth_optional = 3739 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3740 if (test_bit(ISCSIOPT_ERL1, &options)) 3741 sess->erl |= BIT_1; 3742 if (test_bit(ISCSIOPT_ERL0, &options)) 3743 sess->erl |= BIT_0; 3744 3745 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3746 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3747 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3748 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3749 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3750 conn->tcp_timer_scale |= BIT_3; 3751 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3752 conn->tcp_timer_scale |= BIT_2; 3753 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3754 conn->tcp_timer_scale |= BIT_1; 3755 3756 conn->tcp_timer_scale >>= 1; 3757 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3758 3759 options = le16_to_cpu(fw_ddb_entry->ip_options); 3760 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3761 3762 conn->max_recv_dlength = BYTE_UNITS * 3763 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3764 conn->max_xmit_dlength = BYTE_UNITS * 3765 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3766 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3767 sess->first_burst = BYTE_UNITS * 3768 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3769 sess->max_burst = BYTE_UNITS * 3770 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3771 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3772 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3773 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3774 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3775 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3776 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3777 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3778 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3779 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3780 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3781 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3782 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3783 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3784 3785 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3786 if (ddb_link == DDB_ISNS) 3787 disc_parent = ISCSI_DISC_PARENT_ISNS; 3788 else if (ddb_link == DDB_NO_LINK) 3789 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3790 else if (ddb_link < MAX_DDB_ENTRIES) 3791 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3792 else 3793 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3794 3795 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3796 iscsi_get_discovery_parent_name(disc_parent), 0); 3797 3798 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3799 (char *)fw_ddb_entry->iscsi_alias, 0); 3800 3801 options = le16_to_cpu(fw_ddb_entry->options); 3802 if (options & DDB_OPT_IPV6_DEVICE) { 3803 memset(ip_addr, 0, sizeof(ip_addr)); 3804 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3805 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3806 (char *)ip_addr, 0); 3807 } 3808 } 3809 3810 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3811 struct dev_db_entry *fw_ddb_entry, 3812 struct iscsi_cls_session *cls_sess, 3813 struct iscsi_cls_conn *cls_conn) 3814 { 3815 int buflen = 0; 3816 struct iscsi_session *sess; 3817 struct ddb_entry *ddb_entry; 3818 struct ql4_chap_table chap_tbl; 3819 struct iscsi_conn *conn; 3820 char ip_addr[DDB_IPADDR_LEN]; 3821 uint16_t options = 0; 3822 3823 sess = cls_sess->dd_data; 3824 ddb_entry = sess->dd_data; 3825 conn = cls_conn->dd_data; 3826 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3827 3828 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3829 3830 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3831 3832 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3833 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3834 3835 memset(ip_addr, 0, sizeof(ip_addr)); 3836 options = le16_to_cpu(fw_ddb_entry->options); 3837 if (options & DDB_OPT_IPV6_DEVICE) { 3838 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3839 3840 memset(ip_addr, 0, sizeof(ip_addr)); 3841 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3842 } else { 3843 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3844 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3845 } 3846 3847 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3848 (char *)ip_addr, buflen); 3849 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3850 (char *)fw_ddb_entry->iscsi_name, buflen); 3851 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3852 (char *)ha->name_string, buflen); 3853 3854 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3855 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3856 chap_tbl.secret, 3857 ddb_entry->chap_tbl_idx)) { 3858 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3859 (char *)chap_tbl.name, 3860 strlen((char *)chap_tbl.name)); 3861 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3862 (char *)chap_tbl.secret, 3863 chap_tbl.secret_len); 3864 } 3865 } 3866 } 3867 3868 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3869 struct ddb_entry *ddb_entry) 3870 { 3871 struct iscsi_cls_session *cls_sess; 3872 struct iscsi_cls_conn *cls_conn; 3873 uint32_t ddb_state; 3874 dma_addr_t fw_ddb_entry_dma; 3875 struct dev_db_entry *fw_ddb_entry; 3876 3877 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3878 &fw_ddb_entry_dma, GFP_KERNEL); 3879 if (!fw_ddb_entry) { 3880 ql4_printk(KERN_ERR, ha, 3881 "%s: Unable to allocate dma buffer\n", __func__); 3882 goto exit_session_conn_fwddb_param; 3883 } 3884 3885 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3886 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3887 NULL, NULL, NULL) == QLA_ERROR) { 3888 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3889 "get_ddb_entry for fw_ddb_index %d\n", 3890 ha->host_no, __func__, 3891 ddb_entry->fw_ddb_index)); 3892 goto exit_session_conn_fwddb_param; 3893 } 3894 3895 cls_sess = ddb_entry->sess; 3896 3897 cls_conn = ddb_entry->conn; 3898 3899 /* Update params */ 3900 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3901 3902 exit_session_conn_fwddb_param: 3903 if (fw_ddb_entry) 3904 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3905 fw_ddb_entry, fw_ddb_entry_dma); 3906 } 3907 3908 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3909 struct ddb_entry *ddb_entry) 3910 { 3911 struct iscsi_cls_session *cls_sess; 3912 struct iscsi_cls_conn *cls_conn; 3913 struct iscsi_session *sess; 3914 struct iscsi_conn *conn; 3915 uint32_t ddb_state; 3916 dma_addr_t fw_ddb_entry_dma; 3917 struct dev_db_entry *fw_ddb_entry; 3918 3919 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3920 &fw_ddb_entry_dma, GFP_KERNEL); 3921 if (!fw_ddb_entry) { 3922 ql4_printk(KERN_ERR, ha, 3923 "%s: Unable to allocate dma buffer\n", __func__); 3924 goto exit_session_conn_param; 3925 } 3926 3927 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3928 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3929 NULL, NULL, NULL) == QLA_ERROR) { 3930 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3931 "get_ddb_entry for fw_ddb_index %d\n", 3932 ha->host_no, __func__, 3933 ddb_entry->fw_ddb_index)); 3934 goto exit_session_conn_param; 3935 } 3936 3937 cls_sess = ddb_entry->sess; 3938 sess = cls_sess->dd_data; 3939 3940 cls_conn = ddb_entry->conn; 3941 conn = cls_conn->dd_data; 3942 3943 /* Update timers after login */ 3944 ddb_entry->default_relogin_timeout = 3945 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3946 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3947 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3948 ddb_entry->default_time2wait = 3949 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3950 3951 /* Update params */ 3952 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3953 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3954 3955 memcpy(sess->initiatorname, ha->name_string, 3956 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 3957 3958 exit_session_conn_param: 3959 if (fw_ddb_entry) 3960 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3961 fw_ddb_entry, fw_ddb_entry_dma); 3962 } 3963 3964 /* 3965 * Timer routines 3966 */ 3967 3968 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 3969 unsigned long interval) 3970 { 3971 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 3972 __func__, ha->host->host_no)); 3973 init_timer(&ha->timer); 3974 ha->timer.expires = jiffies + interval * HZ; 3975 ha->timer.data = (unsigned long)ha; 3976 ha->timer.function = (void (*)(unsigned long))func; 3977 add_timer(&ha->timer); 3978 ha->timer_active = 1; 3979 } 3980 3981 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 3982 { 3983 del_timer_sync(&ha->timer); 3984 ha->timer_active = 0; 3985 } 3986 3987 /*** 3988 * qla4xxx_mark_device_missing - blocks the session 3989 * @cls_session: Pointer to the session to be blocked 3990 * @ddb_entry: Pointer to device database entry 3991 * 3992 * This routine marks a device missing and close connection. 3993 **/ 3994 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 3995 { 3996 iscsi_block_session(cls_session); 3997 } 3998 3999 /** 4000 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 4001 * @ha: Pointer to host adapter structure. 4002 * 4003 * This routine marks a device missing and resets the relogin retry count. 4004 **/ 4005 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 4006 { 4007 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 4008 } 4009 4010 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 4011 struct ddb_entry *ddb_entry, 4012 struct scsi_cmnd *cmd) 4013 { 4014 struct srb *srb; 4015 4016 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 4017 if (!srb) 4018 return srb; 4019 4020 kref_init(&srb->srb_ref); 4021 srb->ha = ha; 4022 srb->ddb = ddb_entry; 4023 srb->cmd = cmd; 4024 srb->flags = 0; 4025 CMD_SP(cmd) = (void *)srb; 4026 4027 return srb; 4028 } 4029 4030 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4031 { 4032 struct scsi_cmnd *cmd = srb->cmd; 4033 4034 if (srb->flags & SRB_DMA_VALID) { 4035 scsi_dma_unmap(cmd); 4036 srb->flags &= ~SRB_DMA_VALID; 4037 } 4038 CMD_SP(cmd) = NULL; 4039 } 4040 4041 void qla4xxx_srb_compl(struct kref *ref) 4042 { 4043 struct srb *srb = container_of(ref, struct srb, srb_ref); 4044 struct scsi_cmnd *cmd = srb->cmd; 4045 struct scsi_qla_host *ha = srb->ha; 4046 4047 qla4xxx_srb_free_dma(ha, srb); 4048 4049 mempool_free(srb, ha->srb_mempool); 4050 4051 cmd->scsi_done(cmd); 4052 } 4053 4054 /** 4055 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4056 * @host: scsi host 4057 * @cmd: Pointer to Linux's SCSI command structure 4058 * 4059 * Remarks: 4060 * This routine is invoked by Linux to send a SCSI command to the driver. 4061 * The mid-level driver tries to ensure that queuecommand never gets 4062 * invoked concurrently with itself or the interrupt handler (although 4063 * the interrupt handler may call this routine as part of request- 4064 * completion handling). Unfortunely, it sometimes calls the scheduler 4065 * in interrupt context which is a big NO! NO!. 4066 **/ 4067 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4068 { 4069 struct scsi_qla_host *ha = to_qla_host(host); 4070 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4071 struct iscsi_cls_session *sess = ddb_entry->sess; 4072 struct srb *srb; 4073 int rval; 4074 4075 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4076 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4077 cmd->result = DID_NO_CONNECT << 16; 4078 else 4079 cmd->result = DID_REQUEUE << 16; 4080 goto qc_fail_command; 4081 } 4082 4083 if (!sess) { 4084 cmd->result = DID_IMM_RETRY << 16; 4085 goto qc_fail_command; 4086 } 4087 4088 rval = iscsi_session_chkready(sess); 4089 if (rval) { 4090 cmd->result = rval; 4091 goto qc_fail_command; 4092 } 4093 4094 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4095 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4096 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4097 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4098 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4099 !test_bit(AF_ONLINE, &ha->flags) || 4100 !test_bit(AF_LINK_UP, &ha->flags) || 4101 test_bit(AF_LOOPBACK, &ha->flags) || 4102 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4103 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4104 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4105 goto qc_host_busy; 4106 4107 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4108 if (!srb) 4109 goto qc_host_busy; 4110 4111 rval = qla4xxx_send_command_to_isp(ha, srb); 4112 if (rval != QLA_SUCCESS) 4113 goto qc_host_busy_free_sp; 4114 4115 return 0; 4116 4117 qc_host_busy_free_sp: 4118 qla4xxx_srb_free_dma(ha, srb); 4119 mempool_free(srb, ha->srb_mempool); 4120 4121 qc_host_busy: 4122 return SCSI_MLQUEUE_HOST_BUSY; 4123 4124 qc_fail_command: 4125 cmd->scsi_done(cmd); 4126 4127 return 0; 4128 } 4129 4130 /** 4131 * qla4xxx_mem_free - frees memory allocated to adapter 4132 * @ha: Pointer to host adapter structure. 4133 * 4134 * Frees memory previously allocated by qla4xxx_mem_alloc 4135 **/ 4136 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4137 { 4138 if (ha->queues) 4139 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4140 ha->queues_dma); 4141 4142 if (ha->fw_dump) 4143 vfree(ha->fw_dump); 4144 4145 ha->queues_len = 0; 4146 ha->queues = NULL; 4147 ha->queues_dma = 0; 4148 ha->request_ring = NULL; 4149 ha->request_dma = 0; 4150 ha->response_ring = NULL; 4151 ha->response_dma = 0; 4152 ha->shadow_regs = NULL; 4153 ha->shadow_regs_dma = 0; 4154 ha->fw_dump = NULL; 4155 ha->fw_dump_size = 0; 4156 4157 /* Free srb pool. */ 4158 if (ha->srb_mempool) 4159 mempool_destroy(ha->srb_mempool); 4160 4161 ha->srb_mempool = NULL; 4162 4163 if (ha->chap_dma_pool) 4164 dma_pool_destroy(ha->chap_dma_pool); 4165 4166 if (ha->chap_list) 4167 vfree(ha->chap_list); 4168 ha->chap_list = NULL; 4169 4170 if (ha->fw_ddb_dma_pool) 4171 dma_pool_destroy(ha->fw_ddb_dma_pool); 4172 4173 /* release io space registers */ 4174 if (is_qla8022(ha)) { 4175 if (ha->nx_pcibase) 4176 iounmap( 4177 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4178 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4179 if (ha->nx_pcibase) 4180 iounmap( 4181 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4182 } else if (ha->reg) { 4183 iounmap(ha->reg); 4184 } 4185 4186 if (ha->reset_tmplt.buff) 4187 vfree(ha->reset_tmplt.buff); 4188 4189 pci_release_regions(ha->pdev); 4190 } 4191 4192 /** 4193 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4194 * @ha: Pointer to host adapter structure 4195 * 4196 * Allocates DMA memory for request and response queues. Also allocates memory 4197 * for srbs. 4198 **/ 4199 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4200 { 4201 unsigned long align; 4202 4203 /* Allocate contiguous block of DMA memory for queues. */ 4204 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4205 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4206 sizeof(struct shadow_regs) + 4207 MEM_ALIGN_VALUE + 4208 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4209 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 4210 &ha->queues_dma, GFP_KERNEL); 4211 if (ha->queues == NULL) { 4212 ql4_printk(KERN_WARNING, ha, 4213 "Memory Allocation failed - queues.\n"); 4214 4215 goto mem_alloc_error_exit; 4216 } 4217 memset(ha->queues, 0, ha->queues_len); 4218 4219 /* 4220 * As per RISC alignment requirements -- the bus-address must be a 4221 * multiple of the request-ring size (in bytes). 4222 */ 4223 align = 0; 4224 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4225 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4226 (MEM_ALIGN_VALUE - 1)); 4227 4228 /* Update request and response queue pointers. */ 4229 ha->request_dma = ha->queues_dma + align; 4230 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4231 ha->response_dma = ha->queues_dma + align + 4232 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4233 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4234 (REQUEST_QUEUE_DEPTH * 4235 QUEUE_SIZE)); 4236 ha->shadow_regs_dma = ha->queues_dma + align + 4237 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4238 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4239 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4240 (REQUEST_QUEUE_DEPTH * 4241 QUEUE_SIZE) + 4242 (RESPONSE_QUEUE_DEPTH * 4243 QUEUE_SIZE)); 4244 4245 /* Allocate memory for srb pool. */ 4246 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4247 mempool_free_slab, srb_cachep); 4248 if (ha->srb_mempool == NULL) { 4249 ql4_printk(KERN_WARNING, ha, 4250 "Memory Allocation failed - SRB Pool.\n"); 4251 4252 goto mem_alloc_error_exit; 4253 } 4254 4255 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4256 CHAP_DMA_BLOCK_SIZE, 8, 0); 4257 4258 if (ha->chap_dma_pool == NULL) { 4259 ql4_printk(KERN_WARNING, ha, 4260 "%s: chap_dma_pool allocation failed..\n", __func__); 4261 goto mem_alloc_error_exit; 4262 } 4263 4264 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4265 DDB_DMA_BLOCK_SIZE, 8, 0); 4266 4267 if (ha->fw_ddb_dma_pool == NULL) { 4268 ql4_printk(KERN_WARNING, ha, 4269 "%s: fw_ddb_dma_pool allocation failed..\n", 4270 __func__); 4271 goto mem_alloc_error_exit; 4272 } 4273 4274 return QLA_SUCCESS; 4275 4276 mem_alloc_error_exit: 4277 qla4xxx_mem_free(ha); 4278 return QLA_ERROR; 4279 } 4280 4281 /** 4282 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4283 * @ha: adapter block pointer. 4284 * 4285 * Note: The caller should not hold the idc lock. 4286 **/ 4287 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4288 { 4289 uint32_t temp, temp_state, temp_val; 4290 int status = QLA_SUCCESS; 4291 4292 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4293 4294 temp_state = qla82xx_get_temp_state(temp); 4295 temp_val = qla82xx_get_temp_val(temp); 4296 4297 if (temp_state == QLA82XX_TEMP_PANIC) { 4298 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4299 " exceeds maximum allowed. Hardware has been shut" 4300 " down.\n", temp_val); 4301 status = QLA_ERROR; 4302 } else if (temp_state == QLA82XX_TEMP_WARN) { 4303 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4304 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4305 " degrees C exceeds operating range." 4306 " Immediate action needed.\n", temp_val); 4307 } else { 4308 if (ha->temperature == QLA82XX_TEMP_WARN) 4309 ql4_printk(KERN_INFO, ha, "Device temperature is" 4310 " now %d degrees C in normal range.\n", 4311 temp_val); 4312 } 4313 ha->temperature = temp_state; 4314 return status; 4315 } 4316 4317 /** 4318 * qla4_8xxx_check_fw_alive - Check firmware health 4319 * @ha: Pointer to host adapter structure. 4320 * 4321 * Context: Interrupt 4322 **/ 4323 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4324 { 4325 uint32_t fw_heartbeat_counter; 4326 int status = QLA_SUCCESS; 4327 4328 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4329 QLA8XXX_PEG_ALIVE_COUNTER); 4330 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4331 if (fw_heartbeat_counter == 0xffffffff) { 4332 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4333 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4334 ha->host_no, __func__)); 4335 return status; 4336 } 4337 4338 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4339 ha->seconds_since_last_heartbeat++; 4340 /* FW not alive after 2 seconds */ 4341 if (ha->seconds_since_last_heartbeat == 2) { 4342 ha->seconds_since_last_heartbeat = 0; 4343 qla4_8xxx_dump_peg_reg(ha); 4344 status = QLA_ERROR; 4345 } 4346 } else 4347 ha->seconds_since_last_heartbeat = 0; 4348 4349 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4350 return status; 4351 } 4352 4353 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4354 { 4355 uint32_t halt_status; 4356 int halt_status_unrecoverable = 0; 4357 4358 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4359 4360 if (is_qla8022(ha)) { 4361 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4362 __func__); 4363 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4364 CRB_NIU_XG_PAUSE_CTL_P0 | 4365 CRB_NIU_XG_PAUSE_CTL_P1); 4366 4367 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4368 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4369 __func__); 4370 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4371 halt_status_unrecoverable = 1; 4372 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4373 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4374 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4375 __func__); 4376 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4377 halt_status_unrecoverable = 1; 4378 } 4379 4380 /* 4381 * Since we cannot change dev_state in interrupt context, 4382 * set appropriate DPC flag then wakeup DPC 4383 */ 4384 if (halt_status_unrecoverable) { 4385 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4386 } else { 4387 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4388 __func__); 4389 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4390 } 4391 qla4xxx_mailbox_premature_completion(ha); 4392 qla4xxx_wake_dpc(ha); 4393 } 4394 4395 /** 4396 * qla4_8xxx_watchdog - Poll dev state 4397 * @ha: Pointer to host adapter structure. 4398 * 4399 * Context: Interrupt 4400 **/ 4401 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4402 { 4403 uint32_t dev_state; 4404 uint32_t idc_ctrl; 4405 4406 if (is_qla8032(ha) && 4407 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4408 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4409 __func__, ha->func_num); 4410 4411 /* don't poll if reset is going on */ 4412 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4413 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4414 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4415 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4416 4417 if (qla4_8xxx_check_temp(ha)) { 4418 if (is_qla8022(ha)) { 4419 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4420 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4421 CRB_NIU_XG_PAUSE_CTL_P0 | 4422 CRB_NIU_XG_PAUSE_CTL_P1); 4423 } 4424 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4425 qla4xxx_wake_dpc(ha); 4426 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4427 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4428 4429 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4430 __func__); 4431 4432 if (is_qla8032(ha) || is_qla8042(ha)) { 4433 idc_ctrl = qla4_83xx_rd_reg(ha, 4434 QLA83XX_IDC_DRV_CTRL); 4435 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4436 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4437 __func__); 4438 qla4xxx_mailbox_premature_completion( 4439 ha); 4440 } 4441 } 4442 4443 if ((is_qla8032(ha) || is_qla8042(ha)) || 4444 (is_qla8022(ha) && !ql4xdontresethba)) { 4445 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4446 qla4xxx_wake_dpc(ha); 4447 } 4448 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4449 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4450 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4451 __func__); 4452 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4453 qla4xxx_wake_dpc(ha); 4454 } else { 4455 /* Check firmware health */ 4456 if (qla4_8xxx_check_fw_alive(ha)) 4457 qla4_8xxx_process_fw_error(ha); 4458 } 4459 } 4460 } 4461 4462 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4463 { 4464 struct iscsi_session *sess; 4465 struct ddb_entry *ddb_entry; 4466 struct scsi_qla_host *ha; 4467 4468 sess = cls_sess->dd_data; 4469 ddb_entry = sess->dd_data; 4470 ha = ddb_entry->ha; 4471 4472 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4473 return; 4474 4475 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4476 !iscsi_is_session_online(cls_sess)) { 4477 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4478 INVALID_ENTRY) { 4479 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4480 0) { 4481 atomic_set(&ddb_entry->retry_relogin_timer, 4482 INVALID_ENTRY); 4483 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4484 set_bit(DF_RELOGIN, &ddb_entry->flags); 4485 DEBUG2(ql4_printk(KERN_INFO, ha, 4486 "%s: index [%d] login device\n", 4487 __func__, ddb_entry->fw_ddb_index)); 4488 } else 4489 atomic_dec(&ddb_entry->retry_relogin_timer); 4490 } 4491 } 4492 4493 /* Wait for relogin to timeout */ 4494 if (atomic_read(&ddb_entry->relogin_timer) && 4495 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4496 /* 4497 * If the relogin times out and the device is 4498 * still NOT ONLINE then try and relogin again. 4499 */ 4500 if (!iscsi_is_session_online(cls_sess)) { 4501 /* Reset retry relogin timer */ 4502 atomic_inc(&ddb_entry->relogin_retry_count); 4503 DEBUG2(ql4_printk(KERN_INFO, ha, 4504 "%s: index[%d] relogin timed out-retrying" 4505 " relogin (%d), retry (%d)\n", __func__, 4506 ddb_entry->fw_ddb_index, 4507 atomic_read(&ddb_entry->relogin_retry_count), 4508 ddb_entry->default_time2wait + 4)); 4509 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4510 atomic_set(&ddb_entry->retry_relogin_timer, 4511 ddb_entry->default_time2wait + 4); 4512 } 4513 } 4514 } 4515 4516 /** 4517 * qla4xxx_timer - checks every second for work to do. 4518 * @ha: Pointer to host adapter structure. 4519 **/ 4520 static void qla4xxx_timer(struct scsi_qla_host *ha) 4521 { 4522 int start_dpc = 0; 4523 uint16_t w; 4524 4525 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4526 4527 /* If we are in the middle of AER/EEH processing 4528 * skip any processing and reschedule the timer 4529 */ 4530 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4531 mod_timer(&ha->timer, jiffies + HZ); 4532 return; 4533 } 4534 4535 /* Hardware read to trigger an EEH error during mailbox waits. */ 4536 if (!pci_channel_offline(ha->pdev)) 4537 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4538 4539 if (is_qla80XX(ha)) 4540 qla4_8xxx_watchdog(ha); 4541 4542 if (is_qla40XX(ha)) { 4543 /* Check for heartbeat interval. */ 4544 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4545 ha->heartbeat_interval != 0) { 4546 ha->seconds_since_last_heartbeat++; 4547 if (ha->seconds_since_last_heartbeat > 4548 ha->heartbeat_interval + 2) 4549 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4550 } 4551 } 4552 4553 /* Process any deferred work. */ 4554 if (!list_empty(&ha->work_list)) 4555 start_dpc++; 4556 4557 /* Wakeup the dpc routine for this adapter, if needed. */ 4558 if (start_dpc || 4559 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4560 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4561 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4562 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4563 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4564 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4565 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4566 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4567 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4568 test_bit(DPC_AEN, &ha->dpc_flags)) { 4569 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4570 " - dpc flags = 0x%lx\n", 4571 ha->host_no, __func__, ha->dpc_flags)); 4572 qla4xxx_wake_dpc(ha); 4573 } 4574 4575 /* Reschedule timer thread to call us back in one second */ 4576 mod_timer(&ha->timer, jiffies + HZ); 4577 4578 DEBUG2(ha->seconds_since_last_intr++); 4579 } 4580 4581 /** 4582 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4583 * @ha: Pointer to host adapter structure. 4584 * 4585 * This routine stalls the driver until all outstanding commands are returned. 4586 * Caller must release the Hardware Lock prior to calling this routine. 4587 **/ 4588 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4589 { 4590 uint32_t index = 0; 4591 unsigned long flags; 4592 struct scsi_cmnd *cmd; 4593 unsigned long wtime; 4594 uint32_t wtmo; 4595 4596 if (is_qla40XX(ha)) 4597 wtmo = WAIT_CMD_TOV; 4598 else 4599 wtmo = ha->nx_reset_timeout / 2; 4600 4601 wtime = jiffies + (wtmo * HZ); 4602 4603 DEBUG2(ql4_printk(KERN_INFO, ha, 4604 "Wait up to %u seconds for cmds to complete\n", 4605 wtmo)); 4606 4607 while (!time_after_eq(jiffies, wtime)) { 4608 spin_lock_irqsave(&ha->hardware_lock, flags); 4609 /* Find a command that hasn't completed. */ 4610 for (index = 0; index < ha->host->can_queue; index++) { 4611 cmd = scsi_host_find_tag(ha->host, index); 4612 /* 4613 * We cannot just check if the index is valid, 4614 * becase if we are run from the scsi eh, then 4615 * the scsi/block layer is going to prevent 4616 * the tag from being released. 4617 */ 4618 if (cmd != NULL && CMD_SP(cmd)) 4619 break; 4620 } 4621 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4622 4623 /* If No Commands are pending, wait is complete */ 4624 if (index == ha->host->can_queue) 4625 return QLA_SUCCESS; 4626 4627 msleep(1000); 4628 } 4629 /* If we timed out on waiting for commands to come back 4630 * return ERROR. */ 4631 return QLA_ERROR; 4632 } 4633 4634 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4635 { 4636 uint32_t ctrl_status; 4637 unsigned long flags = 0; 4638 4639 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4640 4641 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4642 return QLA_ERROR; 4643 4644 spin_lock_irqsave(&ha->hardware_lock, flags); 4645 4646 /* 4647 * If the SCSI Reset Interrupt bit is set, clear it. 4648 * Otherwise, the Soft Reset won't work. 4649 */ 4650 ctrl_status = readw(&ha->reg->ctrl_status); 4651 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4652 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4653 4654 /* Issue Soft Reset */ 4655 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4656 readl(&ha->reg->ctrl_status); 4657 4658 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4659 return QLA_SUCCESS; 4660 } 4661 4662 /** 4663 * qla4xxx_soft_reset - performs soft reset. 4664 * @ha: Pointer to host adapter structure. 4665 **/ 4666 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4667 { 4668 uint32_t max_wait_time; 4669 unsigned long flags = 0; 4670 int status; 4671 uint32_t ctrl_status; 4672 4673 status = qla4xxx_hw_reset(ha); 4674 if (status != QLA_SUCCESS) 4675 return status; 4676 4677 status = QLA_ERROR; 4678 /* Wait until the Network Reset Intr bit is cleared */ 4679 max_wait_time = RESET_INTR_TOV; 4680 do { 4681 spin_lock_irqsave(&ha->hardware_lock, flags); 4682 ctrl_status = readw(&ha->reg->ctrl_status); 4683 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4684 4685 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4686 break; 4687 4688 msleep(1000); 4689 } while ((--max_wait_time)); 4690 4691 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4692 DEBUG2(printk(KERN_WARNING 4693 "scsi%ld: Network Reset Intr not cleared by " 4694 "Network function, clearing it now!\n", 4695 ha->host_no)); 4696 spin_lock_irqsave(&ha->hardware_lock, flags); 4697 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4698 readl(&ha->reg->ctrl_status); 4699 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4700 } 4701 4702 /* Wait until the firmware tells us the Soft Reset is done */ 4703 max_wait_time = SOFT_RESET_TOV; 4704 do { 4705 spin_lock_irqsave(&ha->hardware_lock, flags); 4706 ctrl_status = readw(&ha->reg->ctrl_status); 4707 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4708 4709 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4710 status = QLA_SUCCESS; 4711 break; 4712 } 4713 4714 msleep(1000); 4715 } while ((--max_wait_time)); 4716 4717 /* 4718 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4719 * after the soft reset has taken place. 4720 */ 4721 spin_lock_irqsave(&ha->hardware_lock, flags); 4722 ctrl_status = readw(&ha->reg->ctrl_status); 4723 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4724 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4725 readl(&ha->reg->ctrl_status); 4726 } 4727 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4728 4729 /* If soft reset fails then most probably the bios on other 4730 * function is also enabled. 4731 * Since the initialization is sequential the other fn 4732 * wont be able to acknowledge the soft reset. 4733 * Issue a force soft reset to workaround this scenario. 4734 */ 4735 if (max_wait_time == 0) { 4736 /* Issue Force Soft Reset */ 4737 spin_lock_irqsave(&ha->hardware_lock, flags); 4738 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4739 readl(&ha->reg->ctrl_status); 4740 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4741 /* Wait until the firmware tells us the Soft Reset is done */ 4742 max_wait_time = SOFT_RESET_TOV; 4743 do { 4744 spin_lock_irqsave(&ha->hardware_lock, flags); 4745 ctrl_status = readw(&ha->reg->ctrl_status); 4746 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4747 4748 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4749 status = QLA_SUCCESS; 4750 break; 4751 } 4752 4753 msleep(1000); 4754 } while ((--max_wait_time)); 4755 } 4756 4757 return status; 4758 } 4759 4760 /** 4761 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4762 * @ha: Pointer to host adapter structure. 4763 * @res: returned scsi status 4764 * 4765 * This routine is called just prior to a HARD RESET to return all 4766 * outstanding commands back to the Operating System. 4767 * Caller should make sure that the following locks are released 4768 * before this calling routine: Hardware lock, and io_request_lock. 4769 **/ 4770 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4771 { 4772 struct srb *srb; 4773 int i; 4774 unsigned long flags; 4775 4776 spin_lock_irqsave(&ha->hardware_lock, flags); 4777 for (i = 0; i < ha->host->can_queue; i++) { 4778 srb = qla4xxx_del_from_active_array(ha, i); 4779 if (srb != NULL) { 4780 srb->cmd->result = res; 4781 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4782 } 4783 } 4784 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4785 } 4786 4787 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4788 { 4789 clear_bit(AF_ONLINE, &ha->flags); 4790 4791 /* Disable the board */ 4792 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4793 4794 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4795 qla4xxx_mark_all_devices_missing(ha); 4796 clear_bit(AF_INIT_DONE, &ha->flags); 4797 } 4798 4799 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4800 { 4801 struct iscsi_session *sess; 4802 struct ddb_entry *ddb_entry; 4803 4804 sess = cls_session->dd_data; 4805 ddb_entry = sess->dd_data; 4806 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4807 4808 if (ddb_entry->ddb_type == FLASH_DDB) 4809 iscsi_block_session(ddb_entry->sess); 4810 else 4811 iscsi_session_failure(cls_session->dd_data, 4812 ISCSI_ERR_CONN_FAILED); 4813 } 4814 4815 /** 4816 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4817 * @ha: Pointer to host adapter structure. 4818 **/ 4819 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4820 { 4821 int status = QLA_ERROR; 4822 uint8_t reset_chip = 0; 4823 uint32_t dev_state; 4824 unsigned long wait; 4825 4826 /* Stall incoming I/O until we are done */ 4827 scsi_block_requests(ha->host); 4828 clear_bit(AF_ONLINE, &ha->flags); 4829 clear_bit(AF_LINK_UP, &ha->flags); 4830 4831 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4832 4833 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4834 4835 if ((is_qla8032(ha) || is_qla8042(ha)) && 4836 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4837 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4838 __func__); 4839 /* disable pause frame for ISP83xx */ 4840 qla4_83xx_disable_pause(ha); 4841 } 4842 4843 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4844 4845 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4846 reset_chip = 1; 4847 4848 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4849 * do not reset adapter, jump to initialize_adapter */ 4850 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4851 status = QLA_SUCCESS; 4852 goto recover_ha_init_adapter; 4853 } 4854 4855 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4856 * from eh_host_reset or ioctl module */ 4857 if (is_qla80XX(ha) && !reset_chip && 4858 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4859 4860 DEBUG2(ql4_printk(KERN_INFO, ha, 4861 "scsi%ld: %s - Performing stop_firmware...\n", 4862 ha->host_no, __func__)); 4863 status = ha->isp_ops->reset_firmware(ha); 4864 if (status == QLA_SUCCESS) { 4865 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4866 qla4xxx_cmd_wait(ha); 4867 4868 ha->isp_ops->disable_intrs(ha); 4869 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4870 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4871 } else { 4872 /* If the stop_firmware fails then 4873 * reset the entire chip */ 4874 reset_chip = 1; 4875 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4876 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4877 } 4878 } 4879 4880 /* Issue full chip reset if recovering from a catastrophic error, 4881 * or if stop_firmware fails for ISP-8xxx. 4882 * This is the default case for ISP-4xxx */ 4883 if (is_qla40XX(ha) || reset_chip) { 4884 if (is_qla40XX(ha)) 4885 goto chip_reset; 4886 4887 /* Check if 8XXX firmware is alive or not 4888 * We may have arrived here from NEED_RESET 4889 * detection only */ 4890 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4891 goto chip_reset; 4892 4893 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4894 while (time_before(jiffies, wait)) { 4895 if (qla4_8xxx_check_fw_alive(ha)) { 4896 qla4xxx_mailbox_premature_completion(ha); 4897 break; 4898 } 4899 4900 set_current_state(TASK_UNINTERRUPTIBLE); 4901 schedule_timeout(HZ); 4902 } 4903 chip_reset: 4904 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4905 qla4xxx_cmd_wait(ha); 4906 4907 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4908 DEBUG2(ql4_printk(KERN_INFO, ha, 4909 "scsi%ld: %s - Performing chip reset..\n", 4910 ha->host_no, __func__)); 4911 status = ha->isp_ops->reset_chip(ha); 4912 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4913 } 4914 4915 /* Flush any pending ddb changed AENs */ 4916 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4917 4918 recover_ha_init_adapter: 4919 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4920 if (status == QLA_SUCCESS) { 4921 /* For ISP-4xxx, force function 1 to always initialize 4922 * before function 3 to prevent both funcions from 4923 * stepping on top of the other */ 4924 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4925 ssleep(6); 4926 4927 /* NOTE: AF_ONLINE flag set upon successful completion of 4928 * qla4xxx_initialize_adapter */ 4929 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4930 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4931 status = qla4_8xxx_check_init_adapter_retry(ha); 4932 if (status == QLA_ERROR) { 4933 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4934 ha->host_no, __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 goto exit_recover; 4941 } 4942 } 4943 } 4944 4945 /* Retry failed adapter initialization, if necessary 4946 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4947 * case to prevent ping-pong resets between functions */ 4948 if (!test_bit(AF_ONLINE, &ha->flags) && 4949 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4950 /* Adapter initialization failed, see if we can retry 4951 * resetting the ha. 4952 * Since we don't want to block the DPC for too long 4953 * with multiple resets in the same thread, 4954 * utilize DPC to retry */ 4955 if (is_qla80XX(ha)) { 4956 ha->isp_ops->idc_lock(ha); 4957 dev_state = qla4_8xxx_rd_direct(ha, 4958 QLA8XXX_CRB_DEV_STATE); 4959 ha->isp_ops->idc_unlock(ha); 4960 if (dev_state == QLA8XXX_DEV_FAILED) { 4961 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4962 "recover adapter. H/W is in Failed " 4963 "state\n", __func__); 4964 qla4xxx_dead_adapter_cleanup(ha); 4965 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4966 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4967 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4968 &ha->dpc_flags); 4969 status = QLA_ERROR; 4970 4971 goto exit_recover; 4972 } 4973 } 4974 4975 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 4976 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 4977 DEBUG2(printk("scsi%ld: recover adapter - retrying " 4978 "(%d) more times\n", ha->host_no, 4979 ha->retry_reset_ha_cnt)); 4980 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4981 status = QLA_ERROR; 4982 } else { 4983 if (ha->retry_reset_ha_cnt > 0) { 4984 /* Schedule another Reset HA--DPC will retry */ 4985 ha->retry_reset_ha_cnt--; 4986 DEBUG2(printk("scsi%ld: recover adapter - " 4987 "retry remaining %d\n", 4988 ha->host_no, 4989 ha->retry_reset_ha_cnt)); 4990 status = QLA_ERROR; 4991 } 4992 4993 if (ha->retry_reset_ha_cnt == 0) { 4994 /* Recover adapter retries have been exhausted. 4995 * Adapter DEAD */ 4996 DEBUG2(printk("scsi%ld: recover adapter " 4997 "failed - board disabled\n", 4998 ha->host_no)); 4999 qla4xxx_dead_adapter_cleanup(ha); 5000 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5001 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5002 clear_bit(DPC_RESET_HA_FW_CONTEXT, 5003 &ha->dpc_flags); 5004 status = QLA_ERROR; 5005 } 5006 } 5007 } else { 5008 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5009 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5010 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5011 } 5012 5013 exit_recover: 5014 ha->adapter_error_count++; 5015 5016 if (test_bit(AF_ONLINE, &ha->flags)) 5017 ha->isp_ops->enable_intrs(ha); 5018 5019 scsi_unblock_requests(ha->host); 5020 5021 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 5022 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 5023 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 5024 5025 return status; 5026 } 5027 5028 static void qla4xxx_relogin_devices(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 if (!iscsi_is_session_online(cls_session)) { 5038 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5039 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5040 " unblock session\n", ha->host_no, __func__, 5041 ddb_entry->fw_ddb_index); 5042 iscsi_unblock_session(ddb_entry->sess); 5043 } else { 5044 /* Trigger relogin */ 5045 if (ddb_entry->ddb_type == FLASH_DDB) { 5046 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5047 test_bit(DF_DISABLE_RELOGIN, 5048 &ddb_entry->flags))) 5049 qla4xxx_arm_relogin_timer(ddb_entry); 5050 } else 5051 iscsi_session_failure(cls_session->dd_data, 5052 ISCSI_ERR_CONN_FAILED); 5053 } 5054 } 5055 } 5056 5057 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5058 { 5059 struct iscsi_session *sess; 5060 struct ddb_entry *ddb_entry; 5061 struct scsi_qla_host *ha; 5062 5063 sess = cls_session->dd_data; 5064 ddb_entry = sess->dd_data; 5065 ha = ddb_entry->ha; 5066 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5067 " unblock session\n", ha->host_no, __func__, 5068 ddb_entry->fw_ddb_index); 5069 5070 iscsi_unblock_session(ddb_entry->sess); 5071 5072 /* Start scan target */ 5073 if (test_bit(AF_ONLINE, &ha->flags)) { 5074 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5075 " start scan\n", ha->host_no, __func__, 5076 ddb_entry->fw_ddb_index); 5077 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 5078 } 5079 return QLA_SUCCESS; 5080 } 5081 5082 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5083 { 5084 struct iscsi_session *sess; 5085 struct ddb_entry *ddb_entry; 5086 struct scsi_qla_host *ha; 5087 int status = QLA_SUCCESS; 5088 5089 sess = cls_session->dd_data; 5090 ddb_entry = sess->dd_data; 5091 ha = ddb_entry->ha; 5092 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5093 " unblock user space session\n", ha->host_no, __func__, 5094 ddb_entry->fw_ddb_index); 5095 5096 if (!iscsi_is_session_online(cls_session)) { 5097 iscsi_conn_start(ddb_entry->conn); 5098 iscsi_conn_login_event(ddb_entry->conn, 5099 ISCSI_CONN_STATE_LOGGED_IN); 5100 } else { 5101 ql4_printk(KERN_INFO, ha, 5102 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5103 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5104 cls_session->sid); 5105 status = QLA_ERROR; 5106 } 5107 5108 return status; 5109 } 5110 5111 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5112 { 5113 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5114 } 5115 5116 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5117 { 5118 uint16_t relogin_timer; 5119 struct iscsi_session *sess; 5120 struct ddb_entry *ddb_entry; 5121 struct scsi_qla_host *ha; 5122 5123 sess = cls_sess->dd_data; 5124 ddb_entry = sess->dd_data; 5125 ha = ddb_entry->ha; 5126 5127 relogin_timer = max(ddb_entry->default_relogin_timeout, 5128 (uint16_t)RELOGIN_TOV); 5129 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5130 5131 DEBUG2(ql4_printk(KERN_INFO, ha, 5132 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5133 ddb_entry->fw_ddb_index, relogin_timer)); 5134 5135 qla4xxx_login_flash_ddb(cls_sess); 5136 } 5137 5138 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5139 { 5140 struct iscsi_session *sess; 5141 struct ddb_entry *ddb_entry; 5142 struct scsi_qla_host *ha; 5143 5144 sess = cls_sess->dd_data; 5145 ddb_entry = sess->dd_data; 5146 ha = ddb_entry->ha; 5147 5148 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5149 return; 5150 5151 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5152 return; 5153 5154 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5155 !iscsi_is_session_online(cls_sess)) { 5156 DEBUG2(ql4_printk(KERN_INFO, ha, 5157 "relogin issued\n")); 5158 qla4xxx_relogin_flash_ddb(cls_sess); 5159 } 5160 } 5161 5162 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5163 { 5164 if (ha->dpc_thread) 5165 queue_work(ha->dpc_thread, &ha->dpc_work); 5166 } 5167 5168 static struct qla4_work_evt * 5169 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5170 enum qla4_work_type type) 5171 { 5172 struct qla4_work_evt *e; 5173 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5174 5175 e = kzalloc(size, GFP_ATOMIC); 5176 if (!e) 5177 return NULL; 5178 5179 INIT_LIST_HEAD(&e->list); 5180 e->type = type; 5181 return e; 5182 } 5183 5184 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5185 struct qla4_work_evt *e) 5186 { 5187 unsigned long flags; 5188 5189 spin_lock_irqsave(&ha->work_lock, flags); 5190 list_add_tail(&e->list, &ha->work_list); 5191 spin_unlock_irqrestore(&ha->work_lock, flags); 5192 qla4xxx_wake_dpc(ha); 5193 } 5194 5195 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5196 enum iscsi_host_event_code aen_code, 5197 uint32_t data_size, uint8_t *data) 5198 { 5199 struct qla4_work_evt *e; 5200 5201 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5202 if (!e) 5203 return QLA_ERROR; 5204 5205 e->u.aen.code = aen_code; 5206 e->u.aen.data_size = data_size; 5207 memcpy(e->u.aen.data, data, data_size); 5208 5209 qla4xxx_post_work(ha, e); 5210 5211 return QLA_SUCCESS; 5212 } 5213 5214 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5215 uint32_t status, uint32_t pid, 5216 uint32_t data_size, uint8_t *data) 5217 { 5218 struct qla4_work_evt *e; 5219 5220 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5221 if (!e) 5222 return QLA_ERROR; 5223 5224 e->u.ping.status = status; 5225 e->u.ping.pid = pid; 5226 e->u.ping.data_size = data_size; 5227 memcpy(e->u.ping.data, data, data_size); 5228 5229 qla4xxx_post_work(ha, e); 5230 5231 return QLA_SUCCESS; 5232 } 5233 5234 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5235 { 5236 struct qla4_work_evt *e, *tmp; 5237 unsigned long flags; 5238 LIST_HEAD(work); 5239 5240 spin_lock_irqsave(&ha->work_lock, flags); 5241 list_splice_init(&ha->work_list, &work); 5242 spin_unlock_irqrestore(&ha->work_lock, flags); 5243 5244 list_for_each_entry_safe(e, tmp, &work, list) { 5245 list_del_init(&e->list); 5246 5247 switch (e->type) { 5248 case QLA4_EVENT_AEN: 5249 iscsi_post_host_event(ha->host_no, 5250 &qla4xxx_iscsi_transport, 5251 e->u.aen.code, 5252 e->u.aen.data_size, 5253 e->u.aen.data); 5254 break; 5255 case QLA4_EVENT_PING_STATUS: 5256 iscsi_ping_comp_event(ha->host_no, 5257 &qla4xxx_iscsi_transport, 5258 e->u.ping.status, 5259 e->u.ping.pid, 5260 e->u.ping.data_size, 5261 e->u.ping.data); 5262 break; 5263 default: 5264 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5265 "supported", e->type); 5266 } 5267 kfree(e); 5268 } 5269 } 5270 5271 /** 5272 * qla4xxx_do_dpc - dpc routine 5273 * @data: in our case pointer to adapter structure 5274 * 5275 * This routine is a task that is schedule by the interrupt handler 5276 * to perform the background processing for interrupts. We put it 5277 * on a task queue that is consumed whenever the scheduler runs; that's 5278 * so you can do anything (i.e. put the process to sleep etc). In fact, 5279 * the mid-level tries to sleep when it reaches the driver threshold 5280 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5281 **/ 5282 static void qla4xxx_do_dpc(struct work_struct *work) 5283 { 5284 struct scsi_qla_host *ha = 5285 container_of(work, struct scsi_qla_host, dpc_work); 5286 int status = QLA_ERROR; 5287 5288 DEBUG2(ql4_printk(KERN_INFO, ha, 5289 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5290 ha->host_no, __func__, ha->flags, ha->dpc_flags)); 5291 5292 /* Initialization not yet finished. Don't do anything yet. */ 5293 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5294 return; 5295 5296 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5297 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5298 ha->host_no, __func__, ha->flags)); 5299 return; 5300 } 5301 5302 /* post events to application */ 5303 qla4xxx_do_work(ha); 5304 5305 if (is_qla80XX(ha)) { 5306 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5307 if (is_qla8032(ha) || is_qla8042(ha)) { 5308 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5309 __func__); 5310 /* disable pause frame for ISP83xx */ 5311 qla4_83xx_disable_pause(ha); 5312 } 5313 5314 ha->isp_ops->idc_lock(ha); 5315 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5316 QLA8XXX_DEV_FAILED); 5317 ha->isp_ops->idc_unlock(ha); 5318 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5319 qla4_8xxx_device_state_handler(ha); 5320 } 5321 5322 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5323 if (is_qla8042(ha)) { 5324 if (ha->idc_info.info2 & 5325 ENABLE_INTERNAL_LOOPBACK) { 5326 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5327 __func__); 5328 status = qla4_84xx_config_acb(ha, 5329 ACB_CONFIG_DISABLE); 5330 if (status != QLA_SUCCESS) { 5331 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5332 __func__); 5333 } 5334 } 5335 } 5336 qla4_83xx_post_idc_ack(ha); 5337 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5338 } 5339 5340 if (is_qla8042(ha) && 5341 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5342 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5343 __func__); 5344 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5345 QLA_SUCCESS) { 5346 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5347 __func__); 5348 } 5349 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5350 } 5351 5352 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5353 qla4_8xxx_need_qsnt_handler(ha); 5354 } 5355 } 5356 5357 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5358 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5359 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5360 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5361 if ((is_qla8022(ha) && ql4xdontresethba) || 5362 ((is_qla8032(ha) || is_qla8042(ha)) && 5363 qla4_83xx_idc_dontreset(ha))) { 5364 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5365 ha->host_no, __func__)); 5366 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5367 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5368 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5369 goto dpc_post_reset_ha; 5370 } 5371 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5372 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5373 qla4xxx_recover_adapter(ha); 5374 5375 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5376 uint8_t wait_time = RESET_INTR_TOV; 5377 5378 while ((readw(&ha->reg->ctrl_status) & 5379 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5380 if (--wait_time == 0) 5381 break; 5382 msleep(1000); 5383 } 5384 if (wait_time == 0) 5385 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5386 "bit not cleared-- resetting\n", 5387 ha->host_no, __func__)); 5388 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5389 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5390 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5391 status = qla4xxx_recover_adapter(ha); 5392 } 5393 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5394 if (status == QLA_SUCCESS) 5395 ha->isp_ops->enable_intrs(ha); 5396 } 5397 } 5398 5399 dpc_post_reset_ha: 5400 /* ---- process AEN? --- */ 5401 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5402 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5403 5404 /* ---- Get DHCP IP Address? --- */ 5405 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5406 qla4xxx_get_dhcp_ip_address(ha); 5407 5408 /* ---- relogin device? --- */ 5409 if (adapter_up(ha) && 5410 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5411 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5412 } 5413 5414 /* ---- link change? --- */ 5415 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5416 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5417 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5418 /* ---- link down? --- */ 5419 qla4xxx_mark_all_devices_missing(ha); 5420 } else { 5421 /* ---- link up? --- * 5422 * F/W will auto login to all devices ONLY ONCE after 5423 * link up during driver initialization and runtime 5424 * fatal error recovery. Therefore, the driver must 5425 * manually relogin to devices when recovering from 5426 * connection failures, logouts, expired KATO, etc. */ 5427 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5428 qla4xxx_build_ddb_list(ha, ha->is_reset); 5429 iscsi_host_for_each_session(ha->host, 5430 qla4xxx_login_flash_ddb); 5431 } else 5432 qla4xxx_relogin_all_devices(ha); 5433 } 5434 } 5435 } 5436 5437 /** 5438 * qla4xxx_free_adapter - release the adapter 5439 * @ha: pointer to adapter structure 5440 **/ 5441 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5442 { 5443 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5444 5445 /* Turn-off interrupts on the card. */ 5446 ha->isp_ops->disable_intrs(ha); 5447 5448 if (is_qla40XX(ha)) { 5449 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5450 &ha->reg->ctrl_status); 5451 readl(&ha->reg->ctrl_status); 5452 } else if (is_qla8022(ha)) { 5453 writel(0, &ha->qla4_82xx_reg->host_int); 5454 readl(&ha->qla4_82xx_reg->host_int); 5455 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5456 writel(0, &ha->qla4_83xx_reg->risc_intr); 5457 readl(&ha->qla4_83xx_reg->risc_intr); 5458 } 5459 5460 /* Remove timer thread, if present */ 5461 if (ha->timer_active) 5462 qla4xxx_stop_timer(ha); 5463 5464 /* Kill the kernel thread for this host */ 5465 if (ha->dpc_thread) 5466 destroy_workqueue(ha->dpc_thread); 5467 5468 /* Kill the kernel thread for this host */ 5469 if (ha->task_wq) 5470 destroy_workqueue(ha->task_wq); 5471 5472 /* Put firmware in known state */ 5473 ha->isp_ops->reset_firmware(ha); 5474 5475 if (is_qla80XX(ha)) { 5476 ha->isp_ops->idc_lock(ha); 5477 qla4_8xxx_clear_drv_active(ha); 5478 ha->isp_ops->idc_unlock(ha); 5479 } 5480 5481 /* Detach interrupts */ 5482 qla4xxx_free_irqs(ha); 5483 5484 /* free extra memory */ 5485 qla4xxx_mem_free(ha); 5486 } 5487 5488 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5489 { 5490 int status = 0; 5491 unsigned long mem_base, mem_len, db_base, db_len; 5492 struct pci_dev *pdev = ha->pdev; 5493 5494 status = pci_request_regions(pdev, DRIVER_NAME); 5495 if (status) { 5496 printk(KERN_WARNING 5497 "scsi(%ld) Failed to reserve PIO regions (%s) " 5498 "status=%d\n", ha->host_no, pci_name(pdev), status); 5499 goto iospace_error_exit; 5500 } 5501 5502 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5503 __func__, pdev->revision)); 5504 ha->revision_id = pdev->revision; 5505 5506 /* remap phys address */ 5507 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5508 mem_len = pci_resource_len(pdev, 0); 5509 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5510 __func__, mem_base, mem_len)); 5511 5512 /* mapping of pcibase pointer */ 5513 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5514 if (!ha->nx_pcibase) { 5515 printk(KERN_ERR 5516 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5517 pci_release_regions(ha->pdev); 5518 goto iospace_error_exit; 5519 } 5520 5521 /* Mapping of IO base pointer, door bell read and write pointer */ 5522 5523 /* mapping of IO base pointer */ 5524 if (is_qla8022(ha)) { 5525 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5526 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5527 (ha->pdev->devfn << 11)); 5528 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5529 QLA82XX_CAM_RAM_DB2); 5530 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5531 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5532 ((uint8_t *)ha->nx_pcibase); 5533 } 5534 5535 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 5536 db_len = pci_resource_len(pdev, 4); 5537 5538 return 0; 5539 iospace_error_exit: 5540 return -ENOMEM; 5541 } 5542 5543 /*** 5544 * qla4xxx_iospace_config - maps registers 5545 * @ha: pointer to adapter structure 5546 * 5547 * This routines maps HBA's registers from the pci address space 5548 * into the kernel virtual address space for memory mapped i/o. 5549 **/ 5550 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5551 { 5552 unsigned long pio, pio_len, pio_flags; 5553 unsigned long mmio, mmio_len, mmio_flags; 5554 5555 pio = pci_resource_start(ha->pdev, 0); 5556 pio_len = pci_resource_len(ha->pdev, 0); 5557 pio_flags = pci_resource_flags(ha->pdev, 0); 5558 if (pio_flags & IORESOURCE_IO) { 5559 if (pio_len < MIN_IOBASE_LEN) { 5560 ql4_printk(KERN_WARNING, ha, 5561 "Invalid PCI I/O region size\n"); 5562 pio = 0; 5563 } 5564 } else { 5565 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5566 pio = 0; 5567 } 5568 5569 /* Use MMIO operations for all accesses. */ 5570 mmio = pci_resource_start(ha->pdev, 1); 5571 mmio_len = pci_resource_len(ha->pdev, 1); 5572 mmio_flags = pci_resource_flags(ha->pdev, 1); 5573 5574 if (!(mmio_flags & IORESOURCE_MEM)) { 5575 ql4_printk(KERN_ERR, ha, 5576 "region #0 not an MMIO resource, aborting\n"); 5577 5578 goto iospace_error_exit; 5579 } 5580 5581 if (mmio_len < MIN_IOBASE_LEN) { 5582 ql4_printk(KERN_ERR, ha, 5583 "Invalid PCI mem region size, aborting\n"); 5584 goto iospace_error_exit; 5585 } 5586 5587 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5588 ql4_printk(KERN_WARNING, ha, 5589 "Failed to reserve PIO/MMIO regions\n"); 5590 5591 goto iospace_error_exit; 5592 } 5593 5594 ha->pio_address = pio; 5595 ha->pio_length = pio_len; 5596 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5597 if (!ha->reg) { 5598 ql4_printk(KERN_ERR, ha, 5599 "cannot remap MMIO, aborting\n"); 5600 5601 goto iospace_error_exit; 5602 } 5603 5604 return 0; 5605 5606 iospace_error_exit: 5607 return -ENOMEM; 5608 } 5609 5610 static struct isp_operations qla4xxx_isp_ops = { 5611 .iospace_config = qla4xxx_iospace_config, 5612 .pci_config = qla4xxx_pci_config, 5613 .disable_intrs = qla4xxx_disable_intrs, 5614 .enable_intrs = qla4xxx_enable_intrs, 5615 .start_firmware = qla4xxx_start_firmware, 5616 .intr_handler = qla4xxx_intr_handler, 5617 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5618 .reset_chip = qla4xxx_soft_reset, 5619 .reset_firmware = qla4xxx_hw_reset, 5620 .queue_iocb = qla4xxx_queue_iocb, 5621 .complete_iocb = qla4xxx_complete_iocb, 5622 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5623 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5624 .get_sys_info = qla4xxx_get_sys_info, 5625 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5626 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5627 }; 5628 5629 static struct isp_operations qla4_82xx_isp_ops = { 5630 .iospace_config = qla4_8xxx_iospace_config, 5631 .pci_config = qla4_8xxx_pci_config, 5632 .disable_intrs = qla4_82xx_disable_intrs, 5633 .enable_intrs = qla4_82xx_enable_intrs, 5634 .start_firmware = qla4_8xxx_load_risc, 5635 .restart_firmware = qla4_82xx_try_start_fw, 5636 .intr_handler = qla4_82xx_intr_handler, 5637 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5638 .need_reset = qla4_8xxx_need_reset, 5639 .reset_chip = qla4_82xx_isp_reset, 5640 .reset_firmware = qla4_8xxx_stop_firmware, 5641 .queue_iocb = qla4_82xx_queue_iocb, 5642 .complete_iocb = qla4_82xx_complete_iocb, 5643 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5644 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5645 .get_sys_info = qla4_8xxx_get_sys_info, 5646 .rd_reg_direct = qla4_82xx_rd_32, 5647 .wr_reg_direct = qla4_82xx_wr_32, 5648 .rd_reg_indirect = qla4_82xx_md_rd_32, 5649 .wr_reg_indirect = qla4_82xx_md_wr_32, 5650 .idc_lock = qla4_82xx_idc_lock, 5651 .idc_unlock = qla4_82xx_idc_unlock, 5652 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5653 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5654 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5655 }; 5656 5657 static struct isp_operations qla4_83xx_isp_ops = { 5658 .iospace_config = qla4_8xxx_iospace_config, 5659 .pci_config = qla4_8xxx_pci_config, 5660 .disable_intrs = qla4_83xx_disable_intrs, 5661 .enable_intrs = qla4_83xx_enable_intrs, 5662 .start_firmware = qla4_8xxx_load_risc, 5663 .restart_firmware = qla4_83xx_start_firmware, 5664 .intr_handler = qla4_83xx_intr_handler, 5665 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5666 .need_reset = qla4_8xxx_need_reset, 5667 .reset_chip = qla4_83xx_isp_reset, 5668 .reset_firmware = qla4_8xxx_stop_firmware, 5669 .queue_iocb = qla4_83xx_queue_iocb, 5670 .complete_iocb = qla4_83xx_complete_iocb, 5671 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5672 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5673 .get_sys_info = qla4_8xxx_get_sys_info, 5674 .rd_reg_direct = qla4_83xx_rd_reg, 5675 .wr_reg_direct = qla4_83xx_wr_reg, 5676 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5677 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5678 .idc_lock = qla4_83xx_drv_lock, 5679 .idc_unlock = qla4_83xx_drv_unlock, 5680 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5681 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5682 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5683 }; 5684 5685 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5686 { 5687 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5688 } 5689 5690 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5691 { 5692 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5693 } 5694 5695 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5696 { 5697 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5698 } 5699 5700 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5701 { 5702 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5703 } 5704 5705 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5706 { 5707 struct scsi_qla_host *ha = data; 5708 char *str = buf; 5709 int rc; 5710 5711 switch (type) { 5712 case ISCSI_BOOT_ETH_FLAGS: 5713 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5714 break; 5715 case ISCSI_BOOT_ETH_INDEX: 5716 rc = sprintf(str, "0\n"); 5717 break; 5718 case ISCSI_BOOT_ETH_MAC: 5719 rc = sysfs_format_mac(str, ha->my_mac, 5720 MAC_ADDR_LEN); 5721 break; 5722 default: 5723 rc = -ENOSYS; 5724 break; 5725 } 5726 return rc; 5727 } 5728 5729 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5730 { 5731 int rc; 5732 5733 switch (type) { 5734 case ISCSI_BOOT_ETH_FLAGS: 5735 case ISCSI_BOOT_ETH_MAC: 5736 case ISCSI_BOOT_ETH_INDEX: 5737 rc = S_IRUGO; 5738 break; 5739 default: 5740 rc = 0; 5741 break; 5742 } 5743 return rc; 5744 } 5745 5746 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5747 { 5748 struct scsi_qla_host *ha = data; 5749 char *str = buf; 5750 int rc; 5751 5752 switch (type) { 5753 case ISCSI_BOOT_INI_INITIATOR_NAME: 5754 rc = sprintf(str, "%s\n", ha->name_string); 5755 break; 5756 default: 5757 rc = -ENOSYS; 5758 break; 5759 } 5760 return rc; 5761 } 5762 5763 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5764 { 5765 int rc; 5766 5767 switch (type) { 5768 case ISCSI_BOOT_INI_INITIATOR_NAME: 5769 rc = S_IRUGO; 5770 break; 5771 default: 5772 rc = 0; 5773 break; 5774 } 5775 return rc; 5776 } 5777 5778 static ssize_t 5779 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5780 char *buf) 5781 { 5782 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5783 char *str = buf; 5784 int rc; 5785 5786 switch (type) { 5787 case ISCSI_BOOT_TGT_NAME: 5788 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5789 break; 5790 case ISCSI_BOOT_TGT_IP_ADDR: 5791 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5792 rc = sprintf(buf, "%pI4\n", 5793 &boot_conn->dest_ipaddr.ip_address); 5794 else 5795 rc = sprintf(str, "%pI6\n", 5796 &boot_conn->dest_ipaddr.ip_address); 5797 break; 5798 case ISCSI_BOOT_TGT_PORT: 5799 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5800 break; 5801 case ISCSI_BOOT_TGT_CHAP_NAME: 5802 rc = sprintf(str, "%.*s\n", 5803 boot_conn->chap.target_chap_name_length, 5804 (char *)&boot_conn->chap.target_chap_name); 5805 break; 5806 case ISCSI_BOOT_TGT_CHAP_SECRET: 5807 rc = sprintf(str, "%.*s\n", 5808 boot_conn->chap.target_secret_length, 5809 (char *)&boot_conn->chap.target_secret); 5810 break; 5811 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5812 rc = sprintf(str, "%.*s\n", 5813 boot_conn->chap.intr_chap_name_length, 5814 (char *)&boot_conn->chap.intr_chap_name); 5815 break; 5816 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5817 rc = sprintf(str, "%.*s\n", 5818 boot_conn->chap.intr_secret_length, 5819 (char *)&boot_conn->chap.intr_secret); 5820 break; 5821 case ISCSI_BOOT_TGT_FLAGS: 5822 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 5823 break; 5824 case ISCSI_BOOT_TGT_NIC_ASSOC: 5825 rc = sprintf(str, "0\n"); 5826 break; 5827 default: 5828 rc = -ENOSYS; 5829 break; 5830 } 5831 return rc; 5832 } 5833 5834 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 5835 { 5836 struct scsi_qla_host *ha = data; 5837 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 5838 5839 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5840 } 5841 5842 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5843 { 5844 struct scsi_qla_host *ha = data; 5845 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5846 5847 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5848 } 5849 5850 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5851 { 5852 int rc; 5853 5854 switch (type) { 5855 case ISCSI_BOOT_TGT_NAME: 5856 case ISCSI_BOOT_TGT_IP_ADDR: 5857 case ISCSI_BOOT_TGT_PORT: 5858 case ISCSI_BOOT_TGT_CHAP_NAME: 5859 case ISCSI_BOOT_TGT_CHAP_SECRET: 5860 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5861 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5862 case ISCSI_BOOT_TGT_NIC_ASSOC: 5863 case ISCSI_BOOT_TGT_FLAGS: 5864 rc = S_IRUGO; 5865 break; 5866 default: 5867 rc = 0; 5868 break; 5869 } 5870 return rc; 5871 } 5872 5873 static void qla4xxx_boot_release(void *data) 5874 { 5875 struct scsi_qla_host *ha = data; 5876 5877 scsi_host_put(ha->host); 5878 } 5879 5880 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5881 { 5882 dma_addr_t buf_dma; 5883 uint32_t addr, pri_addr, sec_addr; 5884 uint32_t offset; 5885 uint16_t func_num; 5886 uint8_t val; 5887 uint8_t *buf = NULL; 5888 size_t size = 13 * sizeof(uint8_t); 5889 int ret = QLA_SUCCESS; 5890 5891 func_num = PCI_FUNC(ha->pdev->devfn); 5892 5893 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5894 __func__, ha->pdev->device, func_num); 5895 5896 if (is_qla40XX(ha)) { 5897 if (func_num == 1) { 5898 addr = NVRAM_PORT0_BOOT_MODE; 5899 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5900 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5901 } else if (func_num == 3) { 5902 addr = NVRAM_PORT1_BOOT_MODE; 5903 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5904 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5905 } else { 5906 ret = QLA_ERROR; 5907 goto exit_boot_info; 5908 } 5909 5910 /* Check Boot Mode */ 5911 val = rd_nvram_byte(ha, addr); 5912 if (!(val & 0x07)) { 5913 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5914 "options : 0x%x\n", __func__, val)); 5915 ret = QLA_ERROR; 5916 goto exit_boot_info; 5917 } 5918 5919 /* get primary valid target index */ 5920 val = rd_nvram_byte(ha, pri_addr); 5921 if (val & BIT_7) 5922 ddb_index[0] = (val & 0x7f); 5923 5924 /* get secondary valid target index */ 5925 val = rd_nvram_byte(ha, sec_addr); 5926 if (val & BIT_7) 5927 ddb_index[1] = (val & 0x7f); 5928 5929 } else if (is_qla80XX(ha)) { 5930 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5931 &buf_dma, GFP_KERNEL); 5932 if (!buf) { 5933 DEBUG2(ql4_printk(KERN_ERR, ha, 5934 "%s: Unable to allocate dma buffer\n", 5935 __func__)); 5936 ret = QLA_ERROR; 5937 goto exit_boot_info; 5938 } 5939 5940 if (ha->port_num == 0) 5941 offset = BOOT_PARAM_OFFSET_PORT0; 5942 else if (ha->port_num == 1) 5943 offset = BOOT_PARAM_OFFSET_PORT1; 5944 else { 5945 ret = QLA_ERROR; 5946 goto exit_boot_info_free; 5947 } 5948 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5949 offset; 5950 if (qla4xxx_get_flash(ha, buf_dma, addr, 5951 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5952 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5953 " failed\n", ha->host_no, __func__)); 5954 ret = QLA_ERROR; 5955 goto exit_boot_info_free; 5956 } 5957 /* Check Boot Mode */ 5958 if (!(buf[1] & 0x07)) { 5959 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5960 " : 0x%x\n", buf[1])); 5961 ret = QLA_ERROR; 5962 goto exit_boot_info_free; 5963 } 5964 5965 /* get primary valid target index */ 5966 if (buf[2] & BIT_7) 5967 ddb_index[0] = buf[2] & 0x7f; 5968 5969 /* get secondary valid target index */ 5970 if (buf[11] & BIT_7) 5971 ddb_index[1] = buf[11] & 0x7f; 5972 } else { 5973 ret = QLA_ERROR; 5974 goto exit_boot_info; 5975 } 5976 5977 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 5978 " target ID %d\n", __func__, ddb_index[0], 5979 ddb_index[1])); 5980 5981 exit_boot_info_free: 5982 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 5983 exit_boot_info: 5984 ha->pri_ddb_idx = ddb_index[0]; 5985 ha->sec_ddb_idx = ddb_index[1]; 5986 return ret; 5987 } 5988 5989 /** 5990 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 5991 * @ha: pointer to adapter structure 5992 * @username: CHAP username to be returned 5993 * @password: CHAP password to be returned 5994 * 5995 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 5996 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 5997 * So from the CHAP cache find the first BIDI CHAP entry and set it 5998 * to the boot record in sysfs. 5999 **/ 6000 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 6001 char *password) 6002 { 6003 int i, ret = -EINVAL; 6004 int max_chap_entries = 0; 6005 struct ql4_chap_table *chap_table; 6006 6007 if (is_qla80XX(ha)) 6008 max_chap_entries = (ha->hw.flt_chap_size / 2) / 6009 sizeof(struct ql4_chap_table); 6010 else 6011 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 6012 6013 if (!ha->chap_list) { 6014 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 6015 return ret; 6016 } 6017 6018 mutex_lock(&ha->chap_sem); 6019 for (i = 0; i < max_chap_entries; i++) { 6020 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 6021 if (chap_table->cookie != 6022 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 6023 continue; 6024 } 6025 6026 if (chap_table->flags & BIT_7) /* local */ 6027 continue; 6028 6029 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6030 continue; 6031 6032 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6033 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6034 ret = 0; 6035 break; 6036 } 6037 mutex_unlock(&ha->chap_sem); 6038 6039 return ret; 6040 } 6041 6042 6043 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6044 struct ql4_boot_session_info *boot_sess, 6045 uint16_t ddb_index) 6046 { 6047 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6048 struct dev_db_entry *fw_ddb_entry; 6049 dma_addr_t fw_ddb_entry_dma; 6050 uint16_t idx; 6051 uint16_t options; 6052 int ret = QLA_SUCCESS; 6053 6054 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6055 &fw_ddb_entry_dma, GFP_KERNEL); 6056 if (!fw_ddb_entry) { 6057 DEBUG2(ql4_printk(KERN_ERR, ha, 6058 "%s: Unable to allocate dma buffer.\n", 6059 __func__)); 6060 ret = QLA_ERROR; 6061 return ret; 6062 } 6063 6064 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6065 fw_ddb_entry_dma, ddb_index)) { 6066 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6067 "index [%d]\n", __func__, ddb_index)); 6068 ret = QLA_ERROR; 6069 goto exit_boot_target; 6070 } 6071 6072 /* Update target name and IP from DDB */ 6073 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6074 min(sizeof(boot_sess->target_name), 6075 sizeof(fw_ddb_entry->iscsi_name))); 6076 6077 options = le16_to_cpu(fw_ddb_entry->options); 6078 if (options & DDB_OPT_IPV6_DEVICE) { 6079 memcpy(&boot_conn->dest_ipaddr.ip_address, 6080 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6081 } else { 6082 boot_conn->dest_ipaddr.ip_type = 0x1; 6083 memcpy(&boot_conn->dest_ipaddr.ip_address, 6084 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6085 } 6086 6087 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6088 6089 /* update chap information */ 6090 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6091 6092 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6093 6094 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6095 6096 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6097 target_chap_name, 6098 (char *)&boot_conn->chap.target_secret, 6099 idx); 6100 if (ret) { 6101 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6102 ret = QLA_ERROR; 6103 goto exit_boot_target; 6104 } 6105 6106 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6107 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6108 } 6109 6110 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6111 6112 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6113 6114 ret = qla4xxx_get_bidi_chap(ha, 6115 (char *)&boot_conn->chap.intr_chap_name, 6116 (char *)&boot_conn->chap.intr_secret); 6117 6118 if (ret) { 6119 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6120 ret = QLA_ERROR; 6121 goto exit_boot_target; 6122 } 6123 6124 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6125 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6126 } 6127 6128 exit_boot_target: 6129 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6130 fw_ddb_entry, fw_ddb_entry_dma); 6131 return ret; 6132 } 6133 6134 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6135 { 6136 uint16_t ddb_index[2]; 6137 int ret = QLA_ERROR; 6138 int rval; 6139 6140 memset(ddb_index, 0, sizeof(ddb_index)); 6141 ddb_index[0] = 0xffff; 6142 ddb_index[1] = 0xffff; 6143 ret = get_fw_boot_info(ha, ddb_index); 6144 if (ret != QLA_SUCCESS) { 6145 DEBUG2(ql4_printk(KERN_INFO, ha, 6146 "%s: No boot target configured.\n", __func__)); 6147 return ret; 6148 } 6149 6150 if (ql4xdisablesysfsboot) 6151 return QLA_SUCCESS; 6152 6153 if (ddb_index[0] == 0xffff) 6154 goto sec_target; 6155 6156 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6157 ddb_index[0]); 6158 if (rval != QLA_SUCCESS) { 6159 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6160 "configured\n", __func__)); 6161 } else 6162 ret = QLA_SUCCESS; 6163 6164 sec_target: 6165 if (ddb_index[1] == 0xffff) 6166 goto exit_get_boot_info; 6167 6168 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6169 ddb_index[1]); 6170 if (rval != QLA_SUCCESS) { 6171 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6172 " configured\n", __func__)); 6173 } else 6174 ret = QLA_SUCCESS; 6175 6176 exit_get_boot_info: 6177 return ret; 6178 } 6179 6180 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6181 { 6182 struct iscsi_boot_kobj *boot_kobj; 6183 6184 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6185 return QLA_ERROR; 6186 6187 if (ql4xdisablesysfsboot) { 6188 ql4_printk(KERN_INFO, ha, 6189 "%s: syfsboot disabled - driver will trigger login " 6190 "and publish session for discovery .\n", __func__); 6191 return QLA_SUCCESS; 6192 } 6193 6194 6195 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6196 if (!ha->boot_kset) 6197 goto kset_free; 6198 6199 if (!scsi_host_get(ha->host)) 6200 goto kset_free; 6201 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6202 qla4xxx_show_boot_tgt_pri_info, 6203 qla4xxx_tgt_get_attr_visibility, 6204 qla4xxx_boot_release); 6205 if (!boot_kobj) 6206 goto put_host; 6207 6208 if (!scsi_host_get(ha->host)) 6209 goto kset_free; 6210 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6211 qla4xxx_show_boot_tgt_sec_info, 6212 qla4xxx_tgt_get_attr_visibility, 6213 qla4xxx_boot_release); 6214 if (!boot_kobj) 6215 goto put_host; 6216 6217 if (!scsi_host_get(ha->host)) 6218 goto kset_free; 6219 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6220 qla4xxx_show_boot_ini_info, 6221 qla4xxx_ini_get_attr_visibility, 6222 qla4xxx_boot_release); 6223 if (!boot_kobj) 6224 goto put_host; 6225 6226 if (!scsi_host_get(ha->host)) 6227 goto kset_free; 6228 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6229 qla4xxx_show_boot_eth_info, 6230 qla4xxx_eth_get_attr_visibility, 6231 qla4xxx_boot_release); 6232 if (!boot_kobj) 6233 goto put_host; 6234 6235 return QLA_SUCCESS; 6236 6237 put_host: 6238 scsi_host_put(ha->host); 6239 kset_free: 6240 iscsi_boot_destroy_kset(ha->boot_kset); 6241 return -ENOMEM; 6242 } 6243 6244 6245 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6246 struct ql4_tuple_ddb *tddb) 6247 { 6248 struct scsi_qla_host *ha; 6249 struct iscsi_cls_session *cls_sess; 6250 struct iscsi_cls_conn *cls_conn; 6251 struct iscsi_session *sess; 6252 struct iscsi_conn *conn; 6253 6254 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6255 ha = ddb_entry->ha; 6256 cls_sess = ddb_entry->sess; 6257 sess = cls_sess->dd_data; 6258 cls_conn = ddb_entry->conn; 6259 conn = cls_conn->dd_data; 6260 6261 tddb->tpgt = sess->tpgt; 6262 tddb->port = conn->persistent_port; 6263 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 6264 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 6265 } 6266 6267 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6268 struct ql4_tuple_ddb *tddb, 6269 uint8_t *flash_isid) 6270 { 6271 uint16_t options = 0; 6272 6273 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6274 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6275 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6276 6277 options = le16_to_cpu(fw_ddb_entry->options); 6278 if (options & DDB_OPT_IPV6_DEVICE) 6279 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6280 else 6281 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6282 6283 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6284 6285 if (flash_isid == NULL) 6286 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6287 sizeof(tddb->isid)); 6288 else 6289 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6290 } 6291 6292 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6293 struct ql4_tuple_ddb *old_tddb, 6294 struct ql4_tuple_ddb *new_tddb, 6295 uint8_t is_isid_compare) 6296 { 6297 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6298 return QLA_ERROR; 6299 6300 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6301 return QLA_ERROR; 6302 6303 if (old_tddb->port != new_tddb->port) 6304 return QLA_ERROR; 6305 6306 /* For multi sessions, driver generates the ISID, so do not compare 6307 * ISID in reset path since it would be a comparison between the 6308 * driver generated ISID and firmware generated ISID. This could 6309 * lead to adding duplicated DDBs in the list as driver generated 6310 * ISID would not match firmware generated ISID. 6311 */ 6312 if (is_isid_compare) { 6313 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x" 6314 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n", 6315 __func__, old_tddb->isid[5], old_tddb->isid[4], 6316 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1], 6317 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4], 6318 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1], 6319 new_tddb->isid[0])); 6320 6321 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6322 sizeof(old_tddb->isid))) 6323 return QLA_ERROR; 6324 } 6325 6326 DEBUG2(ql4_printk(KERN_INFO, ha, 6327 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6328 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6329 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6330 new_tddb->ip_addr, new_tddb->iscsi_name)); 6331 6332 return QLA_SUCCESS; 6333 } 6334 6335 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6336 struct dev_db_entry *fw_ddb_entry, 6337 uint32_t *index) 6338 { 6339 struct ddb_entry *ddb_entry; 6340 struct ql4_tuple_ddb *fw_tddb = NULL; 6341 struct ql4_tuple_ddb *tmp_tddb = NULL; 6342 int idx; 6343 int ret = QLA_ERROR; 6344 6345 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6346 if (!fw_tddb) { 6347 DEBUG2(ql4_printk(KERN_WARNING, ha, 6348 "Memory Allocation failed.\n")); 6349 ret = QLA_SUCCESS; 6350 goto exit_check; 6351 } 6352 6353 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6354 if (!tmp_tddb) { 6355 DEBUG2(ql4_printk(KERN_WARNING, ha, 6356 "Memory Allocation failed.\n")); 6357 ret = QLA_SUCCESS; 6358 goto exit_check; 6359 } 6360 6361 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6362 6363 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6364 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6365 if (ddb_entry == NULL) 6366 continue; 6367 6368 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6369 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6370 ret = QLA_SUCCESS; /* found */ 6371 if (index != NULL) 6372 *index = idx; 6373 goto exit_check; 6374 } 6375 } 6376 6377 exit_check: 6378 if (fw_tddb) 6379 vfree(fw_tddb); 6380 if (tmp_tddb) 6381 vfree(tmp_tddb); 6382 return ret; 6383 } 6384 6385 /** 6386 * qla4xxx_check_existing_isid - check if target with same isid exist 6387 * in target list 6388 * @list_nt: list of target 6389 * @isid: isid to check 6390 * 6391 * This routine return QLA_SUCCESS if target with same isid exist 6392 **/ 6393 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6394 { 6395 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6396 struct dev_db_entry *fw_ddb_entry; 6397 6398 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6399 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6400 6401 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6402 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6403 return QLA_SUCCESS; 6404 } 6405 } 6406 return QLA_ERROR; 6407 } 6408 6409 /** 6410 * qla4xxx_update_isid - compare ddbs and updated isid 6411 * @ha: Pointer to host adapter structure. 6412 * @list_nt: list of nt target 6413 * @fw_ddb_entry: firmware ddb entry 6414 * 6415 * This routine update isid if ddbs have same iqn, same isid and 6416 * different IP addr. 6417 * Return QLA_SUCCESS if isid is updated. 6418 **/ 6419 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6420 struct list_head *list_nt, 6421 struct dev_db_entry *fw_ddb_entry) 6422 { 6423 uint8_t base_value, i; 6424 6425 base_value = fw_ddb_entry->isid[1] & 0x1f; 6426 for (i = 0; i < 8; i++) { 6427 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6428 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6429 break; 6430 } 6431 6432 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6433 return QLA_ERROR; 6434 6435 return QLA_SUCCESS; 6436 } 6437 6438 /** 6439 * qla4xxx_should_update_isid - check if isid need to update 6440 * @ha: Pointer to host adapter structure. 6441 * @old_tddb: ddb tuple 6442 * @new_tddb: ddb tuple 6443 * 6444 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6445 * same isid 6446 **/ 6447 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6448 struct ql4_tuple_ddb *old_tddb, 6449 struct ql4_tuple_ddb *new_tddb) 6450 { 6451 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6452 /* Same ip */ 6453 if (old_tddb->port == new_tddb->port) 6454 return QLA_ERROR; 6455 } 6456 6457 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6458 /* different iqn */ 6459 return QLA_ERROR; 6460 6461 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6462 sizeof(old_tddb->isid))) 6463 /* different isid */ 6464 return QLA_ERROR; 6465 6466 return QLA_SUCCESS; 6467 } 6468 6469 /** 6470 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6471 * @ha: Pointer to host adapter structure. 6472 * @list_nt: list of nt target. 6473 * @fw_ddb_entry: firmware ddb entry. 6474 * 6475 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6476 * duplicate ddb in list_nt. 6477 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6478 * Note: This function also update isid of DDB if required. 6479 **/ 6480 6481 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6482 struct list_head *list_nt, 6483 struct dev_db_entry *fw_ddb_entry) 6484 { 6485 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6486 struct ql4_tuple_ddb *fw_tddb = NULL; 6487 struct ql4_tuple_ddb *tmp_tddb = NULL; 6488 int rval, ret = QLA_ERROR; 6489 6490 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6491 if (!fw_tddb) { 6492 DEBUG2(ql4_printk(KERN_WARNING, ha, 6493 "Memory Allocation failed.\n")); 6494 ret = QLA_SUCCESS; 6495 goto exit_check; 6496 } 6497 6498 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6499 if (!tmp_tddb) { 6500 DEBUG2(ql4_printk(KERN_WARNING, ha, 6501 "Memory Allocation failed.\n")); 6502 ret = QLA_SUCCESS; 6503 goto exit_check; 6504 } 6505 6506 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6507 6508 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6509 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6510 nt_ddb_idx->flash_isid); 6511 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6512 /* found duplicate ddb */ 6513 if (ret == QLA_SUCCESS) 6514 goto exit_check; 6515 } 6516 6517 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6518 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6519 6520 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6521 if (ret == QLA_SUCCESS) { 6522 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6523 if (rval == QLA_SUCCESS) 6524 ret = QLA_ERROR; 6525 else 6526 ret = QLA_SUCCESS; 6527 6528 goto exit_check; 6529 } 6530 } 6531 6532 exit_check: 6533 if (fw_tddb) 6534 vfree(fw_tddb); 6535 if (tmp_tddb) 6536 vfree(tmp_tddb); 6537 return ret; 6538 } 6539 6540 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6541 { 6542 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6543 6544 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6545 list_del_init(&ddb_idx->list); 6546 vfree(ddb_idx); 6547 } 6548 } 6549 6550 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6551 struct dev_db_entry *fw_ddb_entry) 6552 { 6553 struct iscsi_endpoint *ep; 6554 struct sockaddr_in *addr; 6555 struct sockaddr_in6 *addr6; 6556 struct sockaddr *t_addr; 6557 struct sockaddr_storage *dst_addr; 6558 char *ip; 6559 6560 /* TODO: need to destroy on unload iscsi_endpoint*/ 6561 dst_addr = vmalloc(sizeof(*dst_addr)); 6562 if (!dst_addr) 6563 return NULL; 6564 6565 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6566 t_addr = (struct sockaddr *)dst_addr; 6567 t_addr->sa_family = AF_INET6; 6568 addr6 = (struct sockaddr_in6 *)dst_addr; 6569 ip = (char *)&addr6->sin6_addr; 6570 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6571 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6572 6573 } else { 6574 t_addr = (struct sockaddr *)dst_addr; 6575 t_addr->sa_family = AF_INET; 6576 addr = (struct sockaddr_in *)dst_addr; 6577 ip = (char *)&addr->sin_addr; 6578 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6579 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6580 } 6581 6582 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6583 vfree(dst_addr); 6584 return ep; 6585 } 6586 6587 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6588 { 6589 if (ql4xdisablesysfsboot) 6590 return QLA_SUCCESS; 6591 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6592 return QLA_ERROR; 6593 return QLA_SUCCESS; 6594 } 6595 6596 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6597 struct ddb_entry *ddb_entry, 6598 uint16_t idx) 6599 { 6600 uint16_t def_timeout; 6601 6602 ddb_entry->ddb_type = FLASH_DDB; 6603 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6604 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6605 ddb_entry->ha = ha; 6606 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6607 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6608 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6609 6610 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6611 atomic_set(&ddb_entry->relogin_timer, 0); 6612 atomic_set(&ddb_entry->relogin_retry_count, 0); 6613 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6614 ddb_entry->default_relogin_timeout = 6615 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6616 def_timeout : LOGIN_TOV; 6617 ddb_entry->default_time2wait = 6618 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6619 6620 if (ql4xdisablesysfsboot && 6621 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6622 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6623 } 6624 6625 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6626 { 6627 uint32_t idx = 0; 6628 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6629 uint32_t sts[MBOX_REG_COUNT]; 6630 uint32_t ip_state; 6631 unsigned long wtime; 6632 int ret; 6633 6634 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6635 do { 6636 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6637 if (ip_idx[idx] == -1) 6638 continue; 6639 6640 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6641 6642 if (ret == QLA_ERROR) { 6643 ip_idx[idx] = -1; 6644 continue; 6645 } 6646 6647 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6648 6649 DEBUG2(ql4_printk(KERN_INFO, ha, 6650 "Waiting for IP state for idx = %d, state = 0x%x\n", 6651 ip_idx[idx], ip_state)); 6652 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6653 ip_state == IP_ADDRSTATE_INVALID || 6654 ip_state == IP_ADDRSTATE_PREFERRED || 6655 ip_state == IP_ADDRSTATE_DEPRICATED || 6656 ip_state == IP_ADDRSTATE_DISABLING) 6657 ip_idx[idx] = -1; 6658 } 6659 6660 /* Break if all IP states checked */ 6661 if ((ip_idx[0] == -1) && 6662 (ip_idx[1] == -1) && 6663 (ip_idx[2] == -1) && 6664 (ip_idx[3] == -1)) 6665 break; 6666 schedule_timeout_uninterruptible(HZ); 6667 } while (time_after(wtime, jiffies)); 6668 } 6669 6670 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6671 struct dev_db_entry *flash_ddb_entry) 6672 { 6673 uint16_t options = 0; 6674 size_t ip_len = IP_ADDR_LEN; 6675 6676 options = le16_to_cpu(fw_ddb_entry->options); 6677 if (options & DDB_OPT_IPV6_DEVICE) 6678 ip_len = IPv6_ADDR_LEN; 6679 6680 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6681 return QLA_ERROR; 6682 6683 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6684 sizeof(fw_ddb_entry->isid))) 6685 return QLA_ERROR; 6686 6687 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6688 sizeof(fw_ddb_entry->port))) 6689 return QLA_ERROR; 6690 6691 return QLA_SUCCESS; 6692 } 6693 6694 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6695 struct dev_db_entry *fw_ddb_entry, 6696 uint32_t fw_idx, uint32_t *flash_index) 6697 { 6698 struct dev_db_entry *flash_ddb_entry; 6699 dma_addr_t flash_ddb_entry_dma; 6700 uint32_t idx = 0; 6701 int max_ddbs; 6702 int ret = QLA_ERROR, status; 6703 6704 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6705 MAX_DEV_DB_ENTRIES; 6706 6707 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6708 &flash_ddb_entry_dma); 6709 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6710 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6711 goto exit_find_st_idx; 6712 } 6713 6714 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6715 flash_ddb_entry_dma, fw_idx); 6716 if (status == QLA_SUCCESS) { 6717 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6718 if (status == QLA_SUCCESS) { 6719 *flash_index = fw_idx; 6720 ret = QLA_SUCCESS; 6721 goto exit_find_st_idx; 6722 } 6723 } 6724 6725 for (idx = 0; idx < max_ddbs; idx++) { 6726 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6727 flash_ddb_entry_dma, idx); 6728 if (status == QLA_ERROR) 6729 continue; 6730 6731 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6732 if (status == QLA_SUCCESS) { 6733 *flash_index = idx; 6734 ret = QLA_SUCCESS; 6735 goto exit_find_st_idx; 6736 } 6737 } 6738 6739 if (idx == max_ddbs) 6740 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6741 fw_idx); 6742 6743 exit_find_st_idx: 6744 if (flash_ddb_entry) 6745 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6746 flash_ddb_entry_dma); 6747 6748 return ret; 6749 } 6750 6751 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6752 struct list_head *list_st) 6753 { 6754 struct qla_ddb_index *st_ddb_idx; 6755 int max_ddbs; 6756 int fw_idx_size; 6757 struct dev_db_entry *fw_ddb_entry; 6758 dma_addr_t fw_ddb_dma; 6759 int ret; 6760 uint32_t idx = 0, next_idx = 0; 6761 uint32_t state = 0, conn_err = 0; 6762 uint32_t flash_index = -1; 6763 uint16_t conn_id = 0; 6764 6765 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6766 &fw_ddb_dma); 6767 if (fw_ddb_entry == NULL) { 6768 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6769 goto exit_st_list; 6770 } 6771 6772 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6773 MAX_DEV_DB_ENTRIES; 6774 fw_idx_size = sizeof(struct qla_ddb_index); 6775 6776 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6777 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6778 NULL, &next_idx, &state, 6779 &conn_err, NULL, &conn_id); 6780 if (ret == QLA_ERROR) 6781 break; 6782 6783 /* Ignore DDB if invalid state (unassigned) */ 6784 if (state == DDB_DS_UNASSIGNED) 6785 goto continue_next_st; 6786 6787 /* Check if ST, add to the list_st */ 6788 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6789 goto continue_next_st; 6790 6791 st_ddb_idx = vzalloc(fw_idx_size); 6792 if (!st_ddb_idx) 6793 break; 6794 6795 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6796 &flash_index); 6797 if (ret == QLA_ERROR) { 6798 ql4_printk(KERN_ERR, ha, 6799 "No flash entry for ST at idx [%d]\n", idx); 6800 st_ddb_idx->flash_ddb_idx = idx; 6801 } else { 6802 ql4_printk(KERN_INFO, ha, 6803 "ST at idx [%d] is stored at flash [%d]\n", 6804 idx, flash_index); 6805 st_ddb_idx->flash_ddb_idx = flash_index; 6806 } 6807 6808 st_ddb_idx->fw_ddb_idx = idx; 6809 6810 list_add_tail(&st_ddb_idx->list, list_st); 6811 continue_next_st: 6812 if (next_idx == 0) 6813 break; 6814 } 6815 6816 exit_st_list: 6817 if (fw_ddb_entry) 6818 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6819 } 6820 6821 /** 6822 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6823 * @ha: pointer to adapter structure 6824 * @list_ddb: List from which failed ddb to be removed 6825 * 6826 * Iterate over the list of DDBs and find and remove DDBs that are either in 6827 * no connection active state or failed state 6828 **/ 6829 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6830 struct list_head *list_ddb) 6831 { 6832 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6833 uint32_t next_idx = 0; 6834 uint32_t state = 0, conn_err = 0; 6835 int ret; 6836 6837 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6838 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6839 NULL, 0, NULL, &next_idx, &state, 6840 &conn_err, NULL, NULL); 6841 if (ret == QLA_ERROR) 6842 continue; 6843 6844 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6845 state == DDB_DS_SESSION_FAILED) { 6846 list_del_init(&ddb_idx->list); 6847 vfree(ddb_idx); 6848 } 6849 } 6850 } 6851 6852 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6853 struct ddb_entry *ddb_entry, 6854 struct dev_db_entry *fw_ddb_entry) 6855 { 6856 struct iscsi_cls_session *cls_sess; 6857 struct iscsi_session *sess; 6858 uint32_t max_ddbs = 0; 6859 uint16_t ddb_link = -1; 6860 6861 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6862 MAX_DEV_DB_ENTRIES; 6863 6864 cls_sess = ddb_entry->sess; 6865 sess = cls_sess->dd_data; 6866 6867 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6868 if (ddb_link < max_ddbs) 6869 sess->discovery_parent_idx = ddb_link; 6870 else 6871 sess->discovery_parent_idx = DDB_NO_LINK; 6872 } 6873 6874 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6875 struct dev_db_entry *fw_ddb_entry, 6876 int is_reset, uint16_t idx) 6877 { 6878 struct iscsi_cls_session *cls_sess; 6879 struct iscsi_session *sess; 6880 struct iscsi_cls_conn *cls_conn; 6881 struct iscsi_endpoint *ep; 6882 uint16_t cmds_max = 32; 6883 uint16_t conn_id = 0; 6884 uint32_t initial_cmdsn = 0; 6885 int ret = QLA_SUCCESS; 6886 6887 struct ddb_entry *ddb_entry = NULL; 6888 6889 /* Create session object, with INVALID_ENTRY, 6890 * the targer_id would get set when we issue the login 6891 */ 6892 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6893 cmds_max, sizeof(struct ddb_entry), 6894 sizeof(struct ql4_task_data), 6895 initial_cmdsn, INVALID_ENTRY); 6896 if (!cls_sess) { 6897 ret = QLA_ERROR; 6898 goto exit_setup; 6899 } 6900 6901 /* 6902 * so calling module_put function to decrement the 6903 * reference count. 6904 **/ 6905 module_put(qla4xxx_iscsi_transport.owner); 6906 sess = cls_sess->dd_data; 6907 ddb_entry = sess->dd_data; 6908 ddb_entry->sess = cls_sess; 6909 6910 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6911 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6912 sizeof(struct dev_db_entry)); 6913 6914 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6915 6916 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6917 6918 if (!cls_conn) { 6919 ret = QLA_ERROR; 6920 goto exit_setup; 6921 } 6922 6923 ddb_entry->conn = cls_conn; 6924 6925 /* Setup ep, for displaying attributes in sysfs */ 6926 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6927 if (ep) { 6928 ep->conn = cls_conn; 6929 cls_conn->ep = ep; 6930 } else { 6931 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6932 ret = QLA_ERROR; 6933 goto exit_setup; 6934 } 6935 6936 /* Update sess/conn params */ 6937 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6938 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6939 6940 if (is_reset == RESET_ADAPTER) { 6941 iscsi_block_session(cls_sess); 6942 /* Use the relogin path to discover new devices 6943 * by short-circuting the logic of setting 6944 * timer to relogin - instead set the flags 6945 * to initiate login right away. 6946 */ 6947 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6948 set_bit(DF_RELOGIN, &ddb_entry->flags); 6949 } 6950 6951 exit_setup: 6952 return ret; 6953 } 6954 6955 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6956 struct list_head *list_ddb, 6957 struct dev_db_entry *fw_ddb_entry) 6958 { 6959 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6960 uint16_t ddb_link; 6961 6962 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6963 6964 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6965 if (ddb_idx->fw_ddb_idx == ddb_link) { 6966 DEBUG2(ql4_printk(KERN_INFO, ha, 6967 "Updating NT parent idx from [%d] to [%d]\n", 6968 ddb_link, ddb_idx->flash_ddb_idx)); 6969 fw_ddb_entry->ddb_link = 6970 cpu_to_le16(ddb_idx->flash_ddb_idx); 6971 return; 6972 } 6973 } 6974 } 6975 6976 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 6977 struct list_head *list_nt, 6978 struct list_head *list_st, 6979 int is_reset) 6980 { 6981 struct dev_db_entry *fw_ddb_entry; 6982 struct ddb_entry *ddb_entry = NULL; 6983 dma_addr_t fw_ddb_dma; 6984 int max_ddbs; 6985 int fw_idx_size; 6986 int ret; 6987 uint32_t idx = 0, next_idx = 0; 6988 uint32_t state = 0, conn_err = 0; 6989 uint32_t ddb_idx = -1; 6990 uint16_t conn_id = 0; 6991 uint16_t ddb_link = -1; 6992 struct qla_ddb_index *nt_ddb_idx; 6993 6994 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6995 &fw_ddb_dma); 6996 if (fw_ddb_entry == NULL) { 6997 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6998 goto exit_nt_list; 6999 } 7000 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7001 MAX_DEV_DB_ENTRIES; 7002 fw_idx_size = sizeof(struct qla_ddb_index); 7003 7004 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7005 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7006 NULL, &next_idx, &state, 7007 &conn_err, NULL, &conn_id); 7008 if (ret == QLA_ERROR) 7009 break; 7010 7011 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 7012 goto continue_next_nt; 7013 7014 /* Check if NT, then add to list it */ 7015 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 7016 goto continue_next_nt; 7017 7018 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 7019 if (ddb_link < max_ddbs) 7020 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 7021 7022 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 7023 state == DDB_DS_SESSION_FAILED) && 7024 (is_reset == INIT_ADAPTER)) 7025 goto continue_next_nt; 7026 7027 DEBUG2(ql4_printk(KERN_INFO, ha, 7028 "Adding DDB to session = 0x%x\n", idx)); 7029 7030 if (is_reset == INIT_ADAPTER) { 7031 nt_ddb_idx = vmalloc(fw_idx_size); 7032 if (!nt_ddb_idx) 7033 break; 7034 7035 nt_ddb_idx->fw_ddb_idx = idx; 7036 7037 /* Copy original isid as it may get updated in function 7038 * qla4xxx_update_isid(). We need original isid in 7039 * function qla4xxx_compare_tuple_ddb to find duplicate 7040 * target */ 7041 memcpy(&nt_ddb_idx->flash_isid[0], 7042 &fw_ddb_entry->isid[0], 7043 sizeof(nt_ddb_idx->flash_isid)); 7044 7045 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7046 fw_ddb_entry); 7047 if (ret == QLA_SUCCESS) { 7048 /* free nt_ddb_idx and do not add to list_nt */ 7049 vfree(nt_ddb_idx); 7050 goto continue_next_nt; 7051 } 7052 7053 /* Copy updated isid */ 7054 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7055 sizeof(struct dev_db_entry)); 7056 7057 list_add_tail(&nt_ddb_idx->list, list_nt); 7058 } else if (is_reset == RESET_ADAPTER) { 7059 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7060 &ddb_idx); 7061 if (ret == QLA_SUCCESS) { 7062 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7063 ddb_idx); 7064 if (ddb_entry != NULL) 7065 qla4xxx_update_sess_disc_idx(ha, 7066 ddb_entry, 7067 fw_ddb_entry); 7068 goto continue_next_nt; 7069 } 7070 } 7071 7072 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7073 if (ret == QLA_ERROR) 7074 goto exit_nt_list; 7075 7076 continue_next_nt: 7077 if (next_idx == 0) 7078 break; 7079 } 7080 7081 exit_nt_list: 7082 if (fw_ddb_entry) 7083 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7084 } 7085 7086 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7087 struct list_head *list_nt, 7088 uint16_t target_id) 7089 { 7090 struct dev_db_entry *fw_ddb_entry; 7091 dma_addr_t fw_ddb_dma; 7092 int max_ddbs; 7093 int fw_idx_size; 7094 int ret; 7095 uint32_t idx = 0, next_idx = 0; 7096 uint32_t state = 0, conn_err = 0; 7097 uint16_t conn_id = 0; 7098 struct qla_ddb_index *nt_ddb_idx; 7099 7100 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7101 &fw_ddb_dma); 7102 if (fw_ddb_entry == NULL) { 7103 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7104 goto exit_new_nt_list; 7105 } 7106 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7107 MAX_DEV_DB_ENTRIES; 7108 fw_idx_size = sizeof(struct qla_ddb_index); 7109 7110 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7111 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7112 NULL, &next_idx, &state, 7113 &conn_err, NULL, &conn_id); 7114 if (ret == QLA_ERROR) 7115 break; 7116 7117 /* Check if NT, then add it to list */ 7118 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7119 goto continue_next_new_nt; 7120 7121 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7122 goto continue_next_new_nt; 7123 7124 DEBUG2(ql4_printk(KERN_INFO, ha, 7125 "Adding DDB to session = 0x%x\n", idx)); 7126 7127 nt_ddb_idx = vmalloc(fw_idx_size); 7128 if (!nt_ddb_idx) 7129 break; 7130 7131 nt_ddb_idx->fw_ddb_idx = idx; 7132 7133 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7134 if (ret == QLA_SUCCESS) { 7135 /* free nt_ddb_idx and do not add to list_nt */ 7136 vfree(nt_ddb_idx); 7137 goto continue_next_new_nt; 7138 } 7139 7140 if (target_id < max_ddbs) 7141 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7142 7143 list_add_tail(&nt_ddb_idx->list, list_nt); 7144 7145 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7146 idx); 7147 if (ret == QLA_ERROR) 7148 goto exit_new_nt_list; 7149 7150 continue_next_new_nt: 7151 if (next_idx == 0) 7152 break; 7153 } 7154 7155 exit_new_nt_list: 7156 if (fw_ddb_entry) 7157 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7158 } 7159 7160 /** 7161 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7162 * @dev: dev associated with the sysfs entry 7163 * @data: pointer to flashnode session object 7164 * 7165 * Returns: 7166 * 1: if flashnode entry is non-persistent 7167 * 0: if flashnode entry is persistent 7168 **/ 7169 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) 7170 { 7171 struct iscsi_bus_flash_session *fnode_sess; 7172 7173 if (!iscsi_flashnode_bus_match(dev, NULL)) 7174 return 0; 7175 7176 fnode_sess = iscsi_dev_to_flash_session(dev); 7177 7178 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7179 } 7180 7181 /** 7182 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7183 * @ha: pointer to host 7184 * @fw_ddb_entry: flash ddb data 7185 * @idx: target index 7186 * @user: if set then this call is made from userland else from kernel 7187 * 7188 * Returns: 7189 * On sucess: QLA_SUCCESS 7190 * On failure: QLA_ERROR 7191 * 7192 * This create separate sysfs entries for session and connection attributes of 7193 * the given fw ddb entry. 7194 * If this is invoked as a result of a userspace call then the entry is marked 7195 * as nonpersistent using flash_state field. 7196 **/ 7197 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7198 struct dev_db_entry *fw_ddb_entry, 7199 uint16_t *idx, int user) 7200 { 7201 struct iscsi_bus_flash_session *fnode_sess = NULL; 7202 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7203 int rc = QLA_ERROR; 7204 7205 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7206 &qla4xxx_iscsi_transport, 0); 7207 if (!fnode_sess) { 7208 ql4_printk(KERN_ERR, ha, 7209 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7210 __func__, *idx, ha->host_no); 7211 goto exit_tgt_create; 7212 } 7213 7214 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7215 &qla4xxx_iscsi_transport, 0); 7216 if (!fnode_conn) { 7217 ql4_printk(KERN_ERR, ha, 7218 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7219 __func__, *idx, ha->host_no); 7220 goto free_sess; 7221 } 7222 7223 if (user) { 7224 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7225 } else { 7226 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7227 7228 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7229 fnode_sess->is_boot_target = 1; 7230 else 7231 fnode_sess->is_boot_target = 0; 7232 } 7233 7234 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7235 fw_ddb_entry); 7236 7237 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7238 __func__, fnode_sess->dev.kobj.name); 7239 7240 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7241 __func__, fnode_conn->dev.kobj.name); 7242 7243 return QLA_SUCCESS; 7244 7245 free_sess: 7246 iscsi_destroy_flashnode_sess(fnode_sess); 7247 7248 exit_tgt_create: 7249 return QLA_ERROR; 7250 } 7251 7252 /** 7253 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7254 * @shost: pointer to host 7255 * @buf: type of ddb entry (ipv4/ipv6) 7256 * @len: length of buf 7257 * 7258 * This creates new ddb entry in the flash by finding first free index and 7259 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7260 **/ 7261 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7262 int len) 7263 { 7264 struct scsi_qla_host *ha = to_qla_host(shost); 7265 struct dev_db_entry *fw_ddb_entry = NULL; 7266 dma_addr_t fw_ddb_entry_dma; 7267 struct device *dev; 7268 uint16_t idx = 0; 7269 uint16_t max_ddbs = 0; 7270 uint32_t options = 0; 7271 uint32_t rval = QLA_ERROR; 7272 7273 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7274 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7275 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7276 __func__)); 7277 goto exit_ddb_add; 7278 } 7279 7280 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7281 MAX_DEV_DB_ENTRIES; 7282 7283 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7284 &fw_ddb_entry_dma, GFP_KERNEL); 7285 if (!fw_ddb_entry) { 7286 DEBUG2(ql4_printk(KERN_ERR, ha, 7287 "%s: Unable to allocate dma buffer\n", 7288 __func__)); 7289 goto exit_ddb_add; 7290 } 7291 7292 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7293 qla4xxx_sysfs_ddb_is_non_persistent); 7294 if (dev) { 7295 ql4_printk(KERN_ERR, ha, 7296 "%s: A non-persistent entry %s found\n", 7297 __func__, dev->kobj.name); 7298 put_device(dev); 7299 goto exit_ddb_add; 7300 } 7301 7302 /* Index 0 and 1 are reserved for boot target entries */ 7303 for (idx = 2; idx < max_ddbs; idx++) { 7304 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7305 fw_ddb_entry_dma, idx)) 7306 break; 7307 } 7308 7309 if (idx == max_ddbs) 7310 goto exit_ddb_add; 7311 7312 if (!strncasecmp("ipv6", buf, 4)) 7313 options |= IPV6_DEFAULT_DDB_ENTRY; 7314 7315 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7316 if (rval == QLA_ERROR) 7317 goto exit_ddb_add; 7318 7319 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7320 7321 exit_ddb_add: 7322 if (fw_ddb_entry) 7323 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7324 fw_ddb_entry, fw_ddb_entry_dma); 7325 if (rval == QLA_SUCCESS) 7326 return idx; 7327 else 7328 return -EIO; 7329 } 7330 7331 /** 7332 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7333 * @fnode_sess: pointer to session attrs of flash ddb entry 7334 * @fnode_conn: pointer to connection attrs of flash ddb entry 7335 * 7336 * This writes the contents of target ddb buffer to Flash with a valid cookie 7337 * value in order to make the ddb entry persistent. 7338 **/ 7339 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7340 struct iscsi_bus_flash_conn *fnode_conn) 7341 { 7342 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7343 struct scsi_qla_host *ha = to_qla_host(shost); 7344 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7345 struct dev_db_entry *fw_ddb_entry = NULL; 7346 dma_addr_t fw_ddb_entry_dma; 7347 uint32_t options = 0; 7348 int rval = 0; 7349 7350 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7351 &fw_ddb_entry_dma, GFP_KERNEL); 7352 if (!fw_ddb_entry) { 7353 DEBUG2(ql4_printk(KERN_ERR, ha, 7354 "%s: Unable to allocate dma buffer\n", 7355 __func__)); 7356 rval = -ENOMEM; 7357 goto exit_ddb_apply; 7358 } 7359 7360 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7361 options |= IPV6_DEFAULT_DDB_ENTRY; 7362 7363 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7364 if (rval == QLA_ERROR) 7365 goto exit_ddb_apply; 7366 7367 dev_db_start_offset += (fnode_sess->target_id * 7368 sizeof(*fw_ddb_entry)); 7369 7370 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7371 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7372 7373 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7374 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7375 7376 if (rval == QLA_SUCCESS) { 7377 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7378 ql4_printk(KERN_INFO, ha, 7379 "%s: flash node %u of host %lu written to flash\n", 7380 __func__, fnode_sess->target_id, ha->host_no); 7381 } else { 7382 rval = -EIO; 7383 ql4_printk(KERN_ERR, ha, 7384 "%s: Error while writing flash node %u of host %lu to flash\n", 7385 __func__, fnode_sess->target_id, ha->host_no); 7386 } 7387 7388 exit_ddb_apply: 7389 if (fw_ddb_entry) 7390 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7391 fw_ddb_entry, fw_ddb_entry_dma); 7392 return rval; 7393 } 7394 7395 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7396 struct dev_db_entry *fw_ddb_entry, 7397 uint16_t idx) 7398 { 7399 struct dev_db_entry *ddb_entry = NULL; 7400 dma_addr_t ddb_entry_dma; 7401 unsigned long wtime; 7402 uint32_t mbx_sts = 0; 7403 uint32_t state = 0, conn_err = 0; 7404 uint16_t tmo = 0; 7405 int ret = 0; 7406 7407 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7408 &ddb_entry_dma, GFP_KERNEL); 7409 if (!ddb_entry) { 7410 DEBUG2(ql4_printk(KERN_ERR, ha, 7411 "%s: Unable to allocate dma buffer\n", 7412 __func__)); 7413 return QLA_ERROR; 7414 } 7415 7416 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7417 7418 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7419 if (ret != QLA_SUCCESS) { 7420 DEBUG2(ql4_printk(KERN_ERR, ha, 7421 "%s: Unable to set ddb entry for index %d\n", 7422 __func__, idx)); 7423 goto exit_ddb_conn_open; 7424 } 7425 7426 qla4xxx_conn_open(ha, idx); 7427 7428 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7429 tmo = ((ha->def_timeout > LOGIN_TOV) && 7430 (ha->def_timeout < LOGIN_TOV * 10) ? 7431 ha->def_timeout : LOGIN_TOV); 7432 7433 DEBUG2(ql4_printk(KERN_INFO, ha, 7434 "Default time to wait for login to ddb %d\n", tmo)); 7435 7436 wtime = jiffies + (HZ * tmo); 7437 do { 7438 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7439 NULL, &state, &conn_err, NULL, 7440 NULL); 7441 if (ret == QLA_ERROR) 7442 continue; 7443 7444 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7445 state == DDB_DS_SESSION_FAILED) 7446 break; 7447 7448 schedule_timeout_uninterruptible(HZ / 10); 7449 } while (time_after(wtime, jiffies)); 7450 7451 exit_ddb_conn_open: 7452 if (ddb_entry) 7453 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7454 ddb_entry, ddb_entry_dma); 7455 return ret; 7456 } 7457 7458 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7459 struct dev_db_entry *fw_ddb_entry, 7460 uint16_t target_id) 7461 { 7462 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7463 struct list_head list_nt; 7464 uint16_t ddb_index; 7465 int ret = 0; 7466 7467 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7468 ql4_printk(KERN_WARNING, ha, 7469 "%s: A discovery already in progress!\n", __func__); 7470 return QLA_ERROR; 7471 } 7472 7473 INIT_LIST_HEAD(&list_nt); 7474 7475 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7476 7477 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7478 if (ret == QLA_ERROR) 7479 goto exit_login_st_clr_bit; 7480 7481 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7482 if (ret == QLA_ERROR) 7483 goto exit_login_st; 7484 7485 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7486 7487 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7488 list_del_init(&ddb_idx->list); 7489 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7490 vfree(ddb_idx); 7491 } 7492 7493 exit_login_st: 7494 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7495 ql4_printk(KERN_ERR, ha, 7496 "Unable to clear DDB index = 0x%x\n", ddb_index); 7497 } 7498 7499 clear_bit(ddb_index, ha->ddb_idx_map); 7500 7501 exit_login_st_clr_bit: 7502 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7503 return ret; 7504 } 7505 7506 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7507 struct dev_db_entry *fw_ddb_entry, 7508 uint16_t idx) 7509 { 7510 int ret = QLA_ERROR; 7511 7512 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7513 if (ret != QLA_SUCCESS) 7514 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7515 idx); 7516 else 7517 ret = -EPERM; 7518 7519 return ret; 7520 } 7521 7522 /** 7523 * qla4xxx_sysfs_ddb_login - Login to the specified target 7524 * @fnode_sess: pointer to session attrs of flash ddb entry 7525 * @fnode_conn: pointer to connection attrs of flash ddb entry 7526 * 7527 * This logs in to the specified target 7528 **/ 7529 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7530 struct iscsi_bus_flash_conn *fnode_conn) 7531 { 7532 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7533 struct scsi_qla_host *ha = to_qla_host(shost); 7534 struct dev_db_entry *fw_ddb_entry = NULL; 7535 dma_addr_t fw_ddb_entry_dma; 7536 uint32_t options = 0; 7537 int ret = 0; 7538 7539 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7540 ql4_printk(KERN_ERR, ha, 7541 "%s: Target info is not persistent\n", __func__); 7542 ret = -EIO; 7543 goto exit_ddb_login; 7544 } 7545 7546 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7547 &fw_ddb_entry_dma, GFP_KERNEL); 7548 if (!fw_ddb_entry) { 7549 DEBUG2(ql4_printk(KERN_ERR, ha, 7550 "%s: Unable to allocate dma buffer\n", 7551 __func__)); 7552 ret = -ENOMEM; 7553 goto exit_ddb_login; 7554 } 7555 7556 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7557 options |= IPV6_DEFAULT_DDB_ENTRY; 7558 7559 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7560 if (ret == QLA_ERROR) 7561 goto exit_ddb_login; 7562 7563 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7564 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7565 7566 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7567 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7568 fnode_sess->target_id); 7569 else 7570 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7571 fnode_sess->target_id); 7572 7573 if (ret > 0) 7574 ret = -EIO; 7575 7576 exit_ddb_login: 7577 if (fw_ddb_entry) 7578 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7579 fw_ddb_entry, fw_ddb_entry_dma); 7580 return ret; 7581 } 7582 7583 /** 7584 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7585 * @cls_sess: pointer to session to be logged out 7586 * 7587 * This performs session log out from the specified target 7588 **/ 7589 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7590 { 7591 struct iscsi_session *sess; 7592 struct ddb_entry *ddb_entry = NULL; 7593 struct scsi_qla_host *ha; 7594 struct dev_db_entry *fw_ddb_entry = NULL; 7595 dma_addr_t fw_ddb_entry_dma; 7596 unsigned long flags; 7597 unsigned long wtime; 7598 uint32_t ddb_state; 7599 int options; 7600 int ret = 0; 7601 7602 sess = cls_sess->dd_data; 7603 ddb_entry = sess->dd_data; 7604 ha = ddb_entry->ha; 7605 7606 if (ddb_entry->ddb_type != FLASH_DDB) { 7607 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7608 __func__); 7609 ret = -ENXIO; 7610 goto exit_ddb_logout; 7611 } 7612 7613 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7614 ql4_printk(KERN_ERR, ha, 7615 "%s: Logout from boot target entry is not permitted.\n", 7616 __func__); 7617 ret = -EPERM; 7618 goto exit_ddb_logout; 7619 } 7620 7621 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7622 &fw_ddb_entry_dma, GFP_KERNEL); 7623 if (!fw_ddb_entry) { 7624 ql4_printk(KERN_ERR, ha, 7625 "%s: Unable to allocate dma buffer\n", __func__); 7626 ret = -ENOMEM; 7627 goto exit_ddb_logout; 7628 } 7629 7630 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7631 goto ddb_logout_init; 7632 7633 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7634 fw_ddb_entry, fw_ddb_entry_dma, 7635 NULL, NULL, &ddb_state, NULL, 7636 NULL, NULL); 7637 if (ret == QLA_ERROR) 7638 goto ddb_logout_init; 7639 7640 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7641 goto ddb_logout_init; 7642 7643 /* wait until next relogin is triggered using DF_RELOGIN and 7644 * clear DF_RELOGIN to avoid invocation of further relogin 7645 */ 7646 wtime = jiffies + (HZ * RELOGIN_TOV); 7647 do { 7648 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7649 goto ddb_logout_init; 7650 7651 schedule_timeout_uninterruptible(HZ); 7652 } while ((time_after(wtime, jiffies))); 7653 7654 ddb_logout_init: 7655 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7656 atomic_set(&ddb_entry->relogin_timer, 0); 7657 7658 options = LOGOUT_OPTION_CLOSE_SESSION; 7659 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7660 7661 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7662 wtime = jiffies + (HZ * LOGOUT_TOV); 7663 do { 7664 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7665 fw_ddb_entry, fw_ddb_entry_dma, 7666 NULL, NULL, &ddb_state, NULL, 7667 NULL, NULL); 7668 if (ret == QLA_ERROR) 7669 goto ddb_logout_clr_sess; 7670 7671 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7672 (ddb_state == DDB_DS_SESSION_FAILED)) 7673 goto ddb_logout_clr_sess; 7674 7675 schedule_timeout_uninterruptible(HZ); 7676 } while ((time_after(wtime, jiffies))); 7677 7678 ddb_logout_clr_sess: 7679 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7680 /* 7681 * we have decremented the reference count of the driver 7682 * when we setup the session to have the driver unload 7683 * to be seamless without actually destroying the 7684 * session 7685 **/ 7686 try_module_get(qla4xxx_iscsi_transport.owner); 7687 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7688 7689 spin_lock_irqsave(&ha->hardware_lock, flags); 7690 qla4xxx_free_ddb(ha, ddb_entry); 7691 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7692 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7693 7694 iscsi_session_teardown(ddb_entry->sess); 7695 7696 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7697 ret = QLA_SUCCESS; 7698 7699 exit_ddb_logout: 7700 if (fw_ddb_entry) 7701 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7702 fw_ddb_entry, fw_ddb_entry_dma); 7703 return ret; 7704 } 7705 7706 /** 7707 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7708 * @fnode_sess: pointer to session attrs of flash ddb entry 7709 * @fnode_conn: pointer to connection attrs of flash ddb entry 7710 * 7711 * This performs log out from the specified target 7712 **/ 7713 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7714 struct iscsi_bus_flash_conn *fnode_conn) 7715 { 7716 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7717 struct scsi_qla_host *ha = to_qla_host(shost); 7718 struct ql4_tuple_ddb *flash_tddb = NULL; 7719 struct ql4_tuple_ddb *tmp_tddb = NULL; 7720 struct dev_db_entry *fw_ddb_entry = NULL; 7721 struct ddb_entry *ddb_entry = NULL; 7722 dma_addr_t fw_ddb_dma; 7723 uint32_t next_idx = 0; 7724 uint32_t state = 0, conn_err = 0; 7725 uint16_t conn_id = 0; 7726 int idx, index; 7727 int status, ret = 0; 7728 7729 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7730 &fw_ddb_dma); 7731 if (fw_ddb_entry == NULL) { 7732 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7733 ret = -ENOMEM; 7734 goto exit_ddb_logout; 7735 } 7736 7737 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7738 if (!flash_tddb) { 7739 ql4_printk(KERN_WARNING, ha, 7740 "%s:Memory Allocation failed.\n", __func__); 7741 ret = -ENOMEM; 7742 goto exit_ddb_logout; 7743 } 7744 7745 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7746 if (!tmp_tddb) { 7747 ql4_printk(KERN_WARNING, ha, 7748 "%s:Memory Allocation failed.\n", __func__); 7749 ret = -ENOMEM; 7750 goto exit_ddb_logout; 7751 } 7752 7753 if (!fnode_sess->targetname) { 7754 ql4_printk(KERN_ERR, ha, 7755 "%s:Cannot logout from SendTarget entry\n", 7756 __func__); 7757 ret = -EPERM; 7758 goto exit_ddb_logout; 7759 } 7760 7761 if (fnode_sess->is_boot_target) { 7762 ql4_printk(KERN_ERR, ha, 7763 "%s: Logout from boot target entry is not permitted.\n", 7764 __func__); 7765 ret = -EPERM; 7766 goto exit_ddb_logout; 7767 } 7768 7769 strncpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7770 ISCSI_NAME_SIZE); 7771 7772 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7773 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7774 else 7775 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7776 7777 flash_tddb->tpgt = fnode_sess->tpgt; 7778 flash_tddb->port = fnode_conn->port; 7779 7780 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7781 7782 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7783 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7784 if (ddb_entry == NULL) 7785 continue; 7786 7787 if (ddb_entry->ddb_type != FLASH_DDB) 7788 continue; 7789 7790 index = ddb_entry->sess->target_id; 7791 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7792 fw_ddb_dma, NULL, &next_idx, 7793 &state, &conn_err, NULL, 7794 &conn_id); 7795 if (status == QLA_ERROR) { 7796 ret = -ENOMEM; 7797 break; 7798 } 7799 7800 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7801 7802 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7803 true); 7804 if (status == QLA_SUCCESS) { 7805 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7806 break; 7807 } 7808 } 7809 7810 if (idx == MAX_DDB_ENTRIES) 7811 ret = -ESRCH; 7812 7813 exit_ddb_logout: 7814 if (flash_tddb) 7815 vfree(flash_tddb); 7816 if (tmp_tddb) 7817 vfree(tmp_tddb); 7818 if (fw_ddb_entry) 7819 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7820 7821 return ret; 7822 } 7823 7824 static int 7825 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7826 int param, char *buf) 7827 { 7828 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7829 struct scsi_qla_host *ha = to_qla_host(shost); 7830 struct iscsi_bus_flash_conn *fnode_conn; 7831 struct ql4_chap_table chap_tbl; 7832 struct device *dev; 7833 int parent_type; 7834 int rc = 0; 7835 7836 dev = iscsi_find_flashnode_conn(fnode_sess); 7837 if (!dev) 7838 return -EIO; 7839 7840 fnode_conn = iscsi_dev_to_flash_conn(dev); 7841 7842 switch (param) { 7843 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7844 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7845 break; 7846 case ISCSI_FLASHNODE_PORTAL_TYPE: 7847 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7848 break; 7849 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7850 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7851 break; 7852 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7853 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7854 break; 7855 case ISCSI_FLASHNODE_ENTRY_EN: 7856 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7857 break; 7858 case ISCSI_FLASHNODE_HDR_DGST_EN: 7859 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7860 break; 7861 case ISCSI_FLASHNODE_DATA_DGST_EN: 7862 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7863 break; 7864 case ISCSI_FLASHNODE_IMM_DATA_EN: 7865 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7866 break; 7867 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7868 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7869 break; 7870 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7871 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7872 break; 7873 case ISCSI_FLASHNODE_PDU_INORDER: 7874 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7875 break; 7876 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7877 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7878 break; 7879 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7880 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7881 break; 7882 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7883 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7884 break; 7885 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7886 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7887 break; 7888 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7889 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7890 break; 7891 case ISCSI_FLASHNODE_ERL: 7892 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7893 break; 7894 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7895 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7896 break; 7897 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7898 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7899 break; 7900 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7901 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7902 break; 7903 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7904 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7905 break; 7906 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7907 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7908 break; 7909 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7910 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7911 break; 7912 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7913 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7914 break; 7915 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7916 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7917 break; 7918 case ISCSI_FLASHNODE_FIRST_BURST: 7919 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7920 break; 7921 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7922 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7923 break; 7924 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7925 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7926 break; 7927 case ISCSI_FLASHNODE_MAX_R2T: 7928 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7929 break; 7930 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7931 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7932 break; 7933 case ISCSI_FLASHNODE_ISID: 7934 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n", 7935 fnode_sess->isid[0], fnode_sess->isid[1], 7936 fnode_sess->isid[2], fnode_sess->isid[3], 7937 fnode_sess->isid[4], fnode_sess->isid[5]); 7938 break; 7939 case ISCSI_FLASHNODE_TSID: 7940 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7941 break; 7942 case ISCSI_FLASHNODE_PORT: 7943 rc = sprintf(buf, "%d\n", fnode_conn->port); 7944 break; 7945 case ISCSI_FLASHNODE_MAX_BURST: 7946 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7947 break; 7948 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7949 rc = sprintf(buf, "%u\n", 7950 fnode_sess->default_taskmgmt_timeout); 7951 break; 7952 case ISCSI_FLASHNODE_IPADDR: 7953 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7954 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7955 else 7956 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7957 break; 7958 case ISCSI_FLASHNODE_ALIAS: 7959 if (fnode_sess->targetalias) 7960 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7961 else 7962 rc = sprintf(buf, "\n"); 7963 break; 7964 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7965 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7966 rc = sprintf(buf, "%pI6\n", 7967 fnode_conn->redirect_ipaddr); 7968 else 7969 rc = sprintf(buf, "%pI4\n", 7970 fnode_conn->redirect_ipaddr); 7971 break; 7972 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7973 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7974 break; 7975 case ISCSI_FLASHNODE_LOCAL_PORT: 7976 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 7977 break; 7978 case ISCSI_FLASHNODE_IPV4_TOS: 7979 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 7980 break; 7981 case ISCSI_FLASHNODE_IPV6_TC: 7982 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7983 rc = sprintf(buf, "%u\n", 7984 fnode_conn->ipv6_traffic_class); 7985 else 7986 rc = sprintf(buf, "\n"); 7987 break; 7988 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 7989 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 7990 break; 7991 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 7992 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7993 rc = sprintf(buf, "%pI6\n", 7994 fnode_conn->link_local_ipv6_addr); 7995 else 7996 rc = sprintf(buf, "\n"); 7997 break; 7998 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 7999 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 8000 break; 8001 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 8002 if (fnode_sess->discovery_parent_type == DDB_ISNS) 8003 parent_type = ISCSI_DISC_PARENT_ISNS; 8004 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 8005 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8006 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 8007 parent_type = ISCSI_DISC_PARENT_SENDTGT; 8008 else 8009 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8010 8011 rc = sprintf(buf, "%s\n", 8012 iscsi_get_discovery_parent_name(parent_type)); 8013 break; 8014 case ISCSI_FLASHNODE_NAME: 8015 if (fnode_sess->targetname) 8016 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 8017 else 8018 rc = sprintf(buf, "\n"); 8019 break; 8020 case ISCSI_FLASHNODE_TPGT: 8021 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 8022 break; 8023 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8024 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 8025 break; 8026 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8027 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 8028 break; 8029 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8030 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8031 break; 8032 case ISCSI_FLASHNODE_USERNAME: 8033 if (fnode_sess->chap_auth_en) { 8034 qla4xxx_get_uni_chap_at_index(ha, 8035 chap_tbl.name, 8036 chap_tbl.secret, 8037 fnode_sess->chap_out_idx); 8038 rc = sprintf(buf, "%s\n", chap_tbl.name); 8039 } else { 8040 rc = sprintf(buf, "\n"); 8041 } 8042 break; 8043 case ISCSI_FLASHNODE_PASSWORD: 8044 if (fnode_sess->chap_auth_en) { 8045 qla4xxx_get_uni_chap_at_index(ha, 8046 chap_tbl.name, 8047 chap_tbl.secret, 8048 fnode_sess->chap_out_idx); 8049 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8050 } else { 8051 rc = sprintf(buf, "\n"); 8052 } 8053 break; 8054 case ISCSI_FLASHNODE_STATSN: 8055 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8056 break; 8057 case ISCSI_FLASHNODE_EXP_STATSN: 8058 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8059 break; 8060 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8061 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8062 break; 8063 default: 8064 rc = -ENOSYS; 8065 break; 8066 } 8067 8068 put_device(dev); 8069 return rc; 8070 } 8071 8072 /** 8073 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8074 * @fnode_sess: pointer to session attrs of flash ddb entry 8075 * @fnode_conn: pointer to connection attrs of flash ddb entry 8076 * @data: Parameters and their values to update 8077 * @len: len of data 8078 * 8079 * This sets the parameter of flash ddb entry and writes them to flash 8080 **/ 8081 static int 8082 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8083 struct iscsi_bus_flash_conn *fnode_conn, 8084 void *data, int len) 8085 { 8086 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8087 struct scsi_qla_host *ha = to_qla_host(shost); 8088 struct iscsi_flashnode_param_info *fnode_param; 8089 struct ql4_chap_table chap_tbl; 8090 struct nlattr *attr; 8091 uint16_t chap_out_idx = INVALID_ENTRY; 8092 int rc = QLA_ERROR; 8093 uint32_t rem = len; 8094 8095 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8096 nla_for_each_attr(attr, data, len, rem) { 8097 fnode_param = nla_data(attr); 8098 8099 switch (fnode_param->param) { 8100 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8101 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8102 break; 8103 case ISCSI_FLASHNODE_PORTAL_TYPE: 8104 memcpy(fnode_sess->portal_type, fnode_param->value, 8105 strlen(fnode_sess->portal_type)); 8106 break; 8107 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8108 fnode_sess->auto_snd_tgt_disable = 8109 fnode_param->value[0]; 8110 break; 8111 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8112 fnode_sess->discovery_sess = fnode_param->value[0]; 8113 break; 8114 case ISCSI_FLASHNODE_ENTRY_EN: 8115 fnode_sess->entry_state = fnode_param->value[0]; 8116 break; 8117 case ISCSI_FLASHNODE_HDR_DGST_EN: 8118 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8119 break; 8120 case ISCSI_FLASHNODE_DATA_DGST_EN: 8121 fnode_conn->datadgst_en = fnode_param->value[0]; 8122 break; 8123 case ISCSI_FLASHNODE_IMM_DATA_EN: 8124 fnode_sess->imm_data_en = fnode_param->value[0]; 8125 break; 8126 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8127 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8128 break; 8129 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8130 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8131 break; 8132 case ISCSI_FLASHNODE_PDU_INORDER: 8133 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8134 break; 8135 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8136 fnode_sess->chap_auth_en = fnode_param->value[0]; 8137 /* Invalidate chap index if chap auth is disabled */ 8138 if (!fnode_sess->chap_auth_en) 8139 fnode_sess->chap_out_idx = INVALID_ENTRY; 8140 8141 break; 8142 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8143 fnode_conn->snack_req_en = fnode_param->value[0]; 8144 break; 8145 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8146 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8147 break; 8148 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8149 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8150 break; 8151 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8152 fnode_sess->discovery_auth_optional = 8153 fnode_param->value[0]; 8154 break; 8155 case ISCSI_FLASHNODE_ERL: 8156 fnode_sess->erl = fnode_param->value[0]; 8157 break; 8158 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8159 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8160 break; 8161 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8162 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8163 break; 8164 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8165 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8166 break; 8167 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8168 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8169 break; 8170 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8171 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8172 break; 8173 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8174 fnode_conn->fragment_disable = fnode_param->value[0]; 8175 break; 8176 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8177 fnode_conn->max_recv_dlength = 8178 *(unsigned *)fnode_param->value; 8179 break; 8180 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8181 fnode_conn->max_xmit_dlength = 8182 *(unsigned *)fnode_param->value; 8183 break; 8184 case ISCSI_FLASHNODE_FIRST_BURST: 8185 fnode_sess->first_burst = 8186 *(unsigned *)fnode_param->value; 8187 break; 8188 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8189 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8190 break; 8191 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8192 fnode_sess->time2retain = 8193 *(uint16_t *)fnode_param->value; 8194 break; 8195 case ISCSI_FLASHNODE_MAX_R2T: 8196 fnode_sess->max_r2t = 8197 *(uint16_t *)fnode_param->value; 8198 break; 8199 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8200 fnode_conn->keepalive_timeout = 8201 *(uint16_t *)fnode_param->value; 8202 break; 8203 case ISCSI_FLASHNODE_ISID: 8204 memcpy(fnode_sess->isid, fnode_param->value, 8205 sizeof(fnode_sess->isid)); 8206 break; 8207 case ISCSI_FLASHNODE_TSID: 8208 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8209 break; 8210 case ISCSI_FLASHNODE_PORT: 8211 fnode_conn->port = *(uint16_t *)fnode_param->value; 8212 break; 8213 case ISCSI_FLASHNODE_MAX_BURST: 8214 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8215 break; 8216 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8217 fnode_sess->default_taskmgmt_timeout = 8218 *(uint16_t *)fnode_param->value; 8219 break; 8220 case ISCSI_FLASHNODE_IPADDR: 8221 memcpy(fnode_conn->ipaddress, fnode_param->value, 8222 IPv6_ADDR_LEN); 8223 break; 8224 case ISCSI_FLASHNODE_ALIAS: 8225 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8226 (char *)fnode_param->value); 8227 break; 8228 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8229 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8230 IPv6_ADDR_LEN); 8231 break; 8232 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8233 fnode_conn->max_segment_size = 8234 *(unsigned *)fnode_param->value; 8235 break; 8236 case ISCSI_FLASHNODE_LOCAL_PORT: 8237 fnode_conn->local_port = 8238 *(uint16_t *)fnode_param->value; 8239 break; 8240 case ISCSI_FLASHNODE_IPV4_TOS: 8241 fnode_conn->ipv4_tos = fnode_param->value[0]; 8242 break; 8243 case ISCSI_FLASHNODE_IPV6_TC: 8244 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8245 break; 8246 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8247 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8248 break; 8249 case ISCSI_FLASHNODE_NAME: 8250 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8251 (char *)fnode_param->value); 8252 break; 8253 case ISCSI_FLASHNODE_TPGT: 8254 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8255 break; 8256 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8257 memcpy(fnode_conn->link_local_ipv6_addr, 8258 fnode_param->value, IPv6_ADDR_LEN); 8259 break; 8260 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8261 fnode_sess->discovery_parent_idx = 8262 *(uint16_t *)fnode_param->value; 8263 break; 8264 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8265 fnode_conn->tcp_xmit_wsf = 8266 *(uint8_t *)fnode_param->value; 8267 break; 8268 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8269 fnode_conn->tcp_recv_wsf = 8270 *(uint8_t *)fnode_param->value; 8271 break; 8272 case ISCSI_FLASHNODE_STATSN: 8273 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8274 break; 8275 case ISCSI_FLASHNODE_EXP_STATSN: 8276 fnode_conn->exp_statsn = 8277 *(uint32_t *)fnode_param->value; 8278 break; 8279 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8280 chap_out_idx = *(uint16_t *)fnode_param->value; 8281 if (!qla4xxx_get_uni_chap_at_index(ha, 8282 chap_tbl.name, 8283 chap_tbl.secret, 8284 chap_out_idx)) { 8285 fnode_sess->chap_out_idx = chap_out_idx; 8286 /* Enable chap auth if chap index is valid */ 8287 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8288 } 8289 break; 8290 default: 8291 ql4_printk(KERN_ERR, ha, 8292 "%s: No such sysfs attribute\n", __func__); 8293 rc = -ENOSYS; 8294 goto exit_set_param; 8295 } 8296 } 8297 8298 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8299 8300 exit_set_param: 8301 return rc; 8302 } 8303 8304 /** 8305 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8306 * @fnode_sess: pointer to session attrs of flash ddb entry 8307 * 8308 * This invalidates the flash ddb entry at the given index 8309 **/ 8310 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8311 { 8312 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8313 struct scsi_qla_host *ha = to_qla_host(shost); 8314 uint32_t dev_db_start_offset; 8315 uint32_t dev_db_end_offset; 8316 struct dev_db_entry *fw_ddb_entry = NULL; 8317 dma_addr_t fw_ddb_entry_dma; 8318 uint16_t *ddb_cookie = NULL; 8319 size_t ddb_size = 0; 8320 void *pddb = NULL; 8321 int target_id; 8322 int rc = 0; 8323 8324 if (fnode_sess->is_boot_target) { 8325 rc = -EPERM; 8326 DEBUG2(ql4_printk(KERN_ERR, ha, 8327 "%s: Deletion of boot target entry is not permitted.\n", 8328 __func__)); 8329 goto exit_ddb_del; 8330 } 8331 8332 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8333 goto sysfs_ddb_del; 8334 8335 if (is_qla40XX(ha)) { 8336 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8337 dev_db_end_offset = FLASH_OFFSET_DB_END; 8338 dev_db_start_offset += (fnode_sess->target_id * 8339 sizeof(*fw_ddb_entry)); 8340 ddb_size = sizeof(*fw_ddb_entry); 8341 } else { 8342 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8343 (ha->hw.flt_region_ddb << 2); 8344 /* flt_ddb_size is DDB table size for both ports 8345 * so divide it by 2 to calculate the offset for second port 8346 */ 8347 if (ha->port_num == 1) 8348 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8349 8350 dev_db_end_offset = dev_db_start_offset + 8351 (ha->hw.flt_ddb_size / 2); 8352 8353 dev_db_start_offset += (fnode_sess->target_id * 8354 sizeof(*fw_ddb_entry)); 8355 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8356 8357 ddb_size = sizeof(*ddb_cookie); 8358 } 8359 8360 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8361 __func__, dev_db_start_offset, dev_db_end_offset)); 8362 8363 if (dev_db_start_offset > dev_db_end_offset) { 8364 rc = -EIO; 8365 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8366 __func__, fnode_sess->target_id)); 8367 goto exit_ddb_del; 8368 } 8369 8370 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8371 &fw_ddb_entry_dma, GFP_KERNEL); 8372 if (!pddb) { 8373 rc = -ENOMEM; 8374 DEBUG2(ql4_printk(KERN_ERR, ha, 8375 "%s: Unable to allocate dma buffer\n", 8376 __func__)); 8377 goto exit_ddb_del; 8378 } 8379 8380 if (is_qla40XX(ha)) { 8381 fw_ddb_entry = pddb; 8382 memset(fw_ddb_entry, 0, ddb_size); 8383 ddb_cookie = &fw_ddb_entry->cookie; 8384 } else { 8385 ddb_cookie = pddb; 8386 } 8387 8388 /* invalidate the cookie */ 8389 *ddb_cookie = 0xFFEE; 8390 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8391 ddb_size, FLASH_OPT_RMW_COMMIT); 8392 8393 sysfs_ddb_del: 8394 target_id = fnode_sess->target_id; 8395 iscsi_destroy_flashnode_sess(fnode_sess); 8396 ql4_printk(KERN_INFO, ha, 8397 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8398 __func__, target_id, ha->host_no); 8399 exit_ddb_del: 8400 if (pddb) 8401 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8402 fw_ddb_entry_dma); 8403 return rc; 8404 } 8405 8406 /** 8407 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8408 * @ha: pointer to adapter structure 8409 * 8410 * Export the firmware DDB for all send targets and normal targets to sysfs. 8411 **/ 8412 static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8413 { 8414 struct dev_db_entry *fw_ddb_entry = NULL; 8415 dma_addr_t fw_ddb_entry_dma; 8416 uint16_t max_ddbs; 8417 uint16_t idx = 0; 8418 int ret = QLA_SUCCESS; 8419 8420 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8421 sizeof(*fw_ddb_entry), 8422 &fw_ddb_entry_dma, GFP_KERNEL); 8423 if (!fw_ddb_entry) { 8424 DEBUG2(ql4_printk(KERN_ERR, ha, 8425 "%s: Unable to allocate dma buffer\n", 8426 __func__)); 8427 return -ENOMEM; 8428 } 8429 8430 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8431 MAX_DEV_DB_ENTRIES; 8432 8433 for (idx = 0; idx < max_ddbs; idx++) { 8434 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8435 idx)) 8436 continue; 8437 8438 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8439 if (ret) { 8440 ret = -EIO; 8441 break; 8442 } 8443 } 8444 8445 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8446 fw_ddb_entry_dma); 8447 8448 return ret; 8449 } 8450 8451 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8452 { 8453 iscsi_destroy_all_flashnode(ha->host); 8454 } 8455 8456 /** 8457 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8458 * @ha: pointer to adapter structure 8459 * @is_reset: Is this init path or reset path 8460 * 8461 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8462 * using connection open, then create the list of normal targets (nt) 8463 * from firmware DDBs. Based on the list of nt setup session and connection 8464 * objects. 8465 **/ 8466 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8467 { 8468 uint16_t tmo = 0; 8469 struct list_head list_st, list_nt; 8470 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8471 unsigned long wtime; 8472 8473 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8474 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8475 ha->is_reset = is_reset; 8476 return; 8477 } 8478 8479 INIT_LIST_HEAD(&list_st); 8480 INIT_LIST_HEAD(&list_nt); 8481 8482 qla4xxx_build_st_list(ha, &list_st); 8483 8484 /* Before issuing conn open mbox, ensure all IPs states are configured 8485 * Note, conn open fails if IPs are not configured 8486 */ 8487 qla4xxx_wait_for_ip_configuration(ha); 8488 8489 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8490 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8491 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8492 } 8493 8494 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8495 tmo = ((ha->def_timeout > LOGIN_TOV) && 8496 (ha->def_timeout < LOGIN_TOV * 10) ? 8497 ha->def_timeout : LOGIN_TOV); 8498 8499 DEBUG2(ql4_printk(KERN_INFO, ha, 8500 "Default time to wait for build ddb %d\n", tmo)); 8501 8502 wtime = jiffies + (HZ * tmo); 8503 do { 8504 if (list_empty(&list_st)) 8505 break; 8506 8507 qla4xxx_remove_failed_ddb(ha, &list_st); 8508 schedule_timeout_uninterruptible(HZ / 10); 8509 } while (time_after(wtime, jiffies)); 8510 8511 8512 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8513 8514 qla4xxx_free_ddb_list(&list_st); 8515 qla4xxx_free_ddb_list(&list_nt); 8516 8517 qla4xxx_free_ddb_index(ha); 8518 } 8519 8520 /** 8521 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8522 * response. 8523 * @ha: pointer to adapter structure 8524 * 8525 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8526 * set in DDB and we will wait for login response of boot targets during 8527 * probe. 8528 **/ 8529 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8530 { 8531 struct ddb_entry *ddb_entry; 8532 struct dev_db_entry *fw_ddb_entry = NULL; 8533 dma_addr_t fw_ddb_entry_dma; 8534 unsigned long wtime; 8535 uint32_t ddb_state; 8536 int max_ddbs, idx, ret; 8537 8538 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8539 MAX_DEV_DB_ENTRIES; 8540 8541 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8542 &fw_ddb_entry_dma, GFP_KERNEL); 8543 if (!fw_ddb_entry) { 8544 ql4_printk(KERN_ERR, ha, 8545 "%s: Unable to allocate dma buffer\n", __func__); 8546 goto exit_login_resp; 8547 } 8548 8549 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8550 8551 for (idx = 0; idx < max_ddbs; idx++) { 8552 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8553 if (ddb_entry == NULL) 8554 continue; 8555 8556 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8557 DEBUG2(ql4_printk(KERN_INFO, ha, 8558 "%s: DDB index [%d]\n", __func__, 8559 ddb_entry->fw_ddb_index)); 8560 do { 8561 ret = qla4xxx_get_fwddb_entry(ha, 8562 ddb_entry->fw_ddb_index, 8563 fw_ddb_entry, fw_ddb_entry_dma, 8564 NULL, NULL, &ddb_state, NULL, 8565 NULL, NULL); 8566 if (ret == QLA_ERROR) 8567 goto exit_login_resp; 8568 8569 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8570 (ddb_state == DDB_DS_SESSION_FAILED)) 8571 break; 8572 8573 schedule_timeout_uninterruptible(HZ); 8574 8575 } while ((time_after(wtime, jiffies))); 8576 8577 if (!time_after(wtime, jiffies)) { 8578 DEBUG2(ql4_printk(KERN_INFO, ha, 8579 "%s: Login response wait timer expired\n", 8580 __func__)); 8581 goto exit_login_resp; 8582 } 8583 } 8584 } 8585 8586 exit_login_resp: 8587 if (fw_ddb_entry) 8588 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8589 fw_ddb_entry, fw_ddb_entry_dma); 8590 } 8591 8592 /** 8593 * qla4xxx_probe_adapter - callback function to probe HBA 8594 * @pdev: pointer to pci_dev structure 8595 * @pci_device_id: pointer to pci_device entry 8596 * 8597 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8598 * It returns zero if successful. It also initializes all data necessary for 8599 * the driver. 8600 **/ 8601 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8602 const struct pci_device_id *ent) 8603 { 8604 int ret = -ENODEV, status; 8605 struct Scsi_Host *host; 8606 struct scsi_qla_host *ha; 8607 uint8_t init_retry_count = 0; 8608 char buf[34]; 8609 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8610 uint32_t dev_state; 8611 8612 if (pci_enable_device(pdev)) 8613 return -1; 8614 8615 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8616 if (host == NULL) { 8617 printk(KERN_WARNING 8618 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8619 goto probe_disable_device; 8620 } 8621 8622 /* Clear our data area */ 8623 ha = to_qla_host(host); 8624 memset(ha, 0, sizeof(*ha)); 8625 8626 /* Save the information from PCI BIOS. */ 8627 ha->pdev = pdev; 8628 ha->host = host; 8629 ha->host_no = host->host_no; 8630 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8631 8632 pci_enable_pcie_error_reporting(pdev); 8633 8634 /* Setup Runtime configurable options */ 8635 if (is_qla8022(ha)) { 8636 ha->isp_ops = &qla4_82xx_isp_ops; 8637 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8638 ha->qdr_sn_window = -1; 8639 ha->ddr_mn_window = -1; 8640 ha->curr_window = 255; 8641 nx_legacy_intr = &legacy_intr[ha->func_num]; 8642 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8643 ha->nx_legacy_intr.tgt_status_reg = 8644 nx_legacy_intr->tgt_status_reg; 8645 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8646 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8647 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8648 ha->isp_ops = &qla4_83xx_isp_ops; 8649 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8650 } else { 8651 ha->isp_ops = &qla4xxx_isp_ops; 8652 } 8653 8654 if (is_qla80XX(ha)) { 8655 rwlock_init(&ha->hw_lock); 8656 ha->pf_bit = ha->func_num << 16; 8657 /* Set EEH reset type to fundamental if required by hba */ 8658 pdev->needs_freset = 1; 8659 } 8660 8661 /* Configure PCI I/O space. */ 8662 ret = ha->isp_ops->iospace_config(ha); 8663 if (ret) 8664 goto probe_failed_ioconfig; 8665 8666 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8667 pdev->device, pdev->irq, ha->reg); 8668 8669 qla4xxx_config_dma_addressing(ha); 8670 8671 /* Initialize lists and spinlocks. */ 8672 INIT_LIST_HEAD(&ha->free_srb_q); 8673 8674 mutex_init(&ha->mbox_sem); 8675 mutex_init(&ha->chap_sem); 8676 init_completion(&ha->mbx_intr_comp); 8677 init_completion(&ha->disable_acb_comp); 8678 init_completion(&ha->idc_comp); 8679 init_completion(&ha->link_up_comp); 8680 init_completion(&ha->disable_acb_comp); 8681 8682 spin_lock_init(&ha->hardware_lock); 8683 spin_lock_init(&ha->work_lock); 8684 8685 /* Initialize work list */ 8686 INIT_LIST_HEAD(&ha->work_list); 8687 8688 /* Allocate dma buffers */ 8689 if (qla4xxx_mem_alloc(ha)) { 8690 ql4_printk(KERN_WARNING, ha, 8691 "[ERROR] Failed to allocate memory for adapter\n"); 8692 8693 ret = -ENOMEM; 8694 goto probe_failed; 8695 } 8696 8697 host->cmd_per_lun = 3; 8698 host->max_channel = 0; 8699 host->max_lun = MAX_LUNS - 1; 8700 host->max_id = MAX_TARGETS; 8701 host->max_cmd_len = IOCB_MAX_CDB_LEN; 8702 host->can_queue = MAX_SRBS ; 8703 host->transportt = qla4xxx_scsi_transport; 8704 8705 ret = scsi_init_shared_tag_map(host, MAX_SRBS); 8706 if (ret) { 8707 ql4_printk(KERN_WARNING, ha, 8708 "%s: scsi_init_shared_tag_map failed\n", __func__); 8709 goto probe_failed; 8710 } 8711 8712 pci_set_drvdata(pdev, ha); 8713 8714 ret = scsi_add_host(host, &pdev->dev); 8715 if (ret) 8716 goto probe_failed; 8717 8718 if (is_qla80XX(ha)) 8719 qla4_8xxx_get_flash_info(ha); 8720 8721 if (is_qla8032(ha) || is_qla8042(ha)) { 8722 qla4_83xx_read_reset_template(ha); 8723 /* 8724 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8725 * If DONRESET_BIT0 is set, drivers should not set dev_state 8726 * to NEED_RESET. But if NEED_RESET is set, drivers should 8727 * should honor the reset. 8728 */ 8729 if (ql4xdontresethba == 1) 8730 qla4_83xx_set_idc_dontreset(ha); 8731 } 8732 8733 /* 8734 * Initialize the Host adapter request/response queues and 8735 * firmware 8736 * NOTE: interrupts enabled upon successful completion 8737 */ 8738 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8739 8740 /* Dont retry adapter initialization if IRQ allocation failed */ 8741 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8742 goto skip_retry_init; 8743 8744 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8745 init_retry_count++ < MAX_INIT_RETRIES) { 8746 8747 if (is_qla80XX(ha)) { 8748 ha->isp_ops->idc_lock(ha); 8749 dev_state = qla4_8xxx_rd_direct(ha, 8750 QLA8XXX_CRB_DEV_STATE); 8751 ha->isp_ops->idc_unlock(ha); 8752 if (dev_state == QLA8XXX_DEV_FAILED) { 8753 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8754 "initialize adapter. H/W is in failed state\n", 8755 __func__); 8756 break; 8757 } 8758 } 8759 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8760 "(%d)\n", __func__, init_retry_count)); 8761 8762 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8763 continue; 8764 8765 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8766 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8767 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8768 goto skip_retry_init; 8769 } 8770 } 8771 8772 skip_retry_init: 8773 if (!test_bit(AF_ONLINE, &ha->flags)) { 8774 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8775 8776 if ((is_qla8022(ha) && ql4xdontresethba) || 8777 ((is_qla8032(ha) || is_qla8042(ha)) && 8778 qla4_83xx_idc_dontreset(ha))) { 8779 /* Put the device in failed state. */ 8780 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8781 ha->isp_ops->idc_lock(ha); 8782 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8783 QLA8XXX_DEV_FAILED); 8784 ha->isp_ops->idc_unlock(ha); 8785 } 8786 ret = -ENODEV; 8787 goto remove_host; 8788 } 8789 8790 /* Startup the kernel thread for this host adapter. */ 8791 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8792 "qla4xxx_dpc\n", __func__)); 8793 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8794 ha->dpc_thread = create_singlethread_workqueue(buf); 8795 if (!ha->dpc_thread) { 8796 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8797 ret = -ENODEV; 8798 goto remove_host; 8799 } 8800 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8801 8802 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8803 ha->host_no); 8804 if (!ha->task_wq) { 8805 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8806 ret = -ENODEV; 8807 goto remove_host; 8808 } 8809 8810 /* 8811 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8812 * (which is called indirectly by qla4xxx_initialize_adapter), 8813 * so that irqs will be registered after crbinit but before 8814 * mbx_intr_enable. 8815 */ 8816 if (is_qla40XX(ha)) { 8817 ret = qla4xxx_request_irqs(ha); 8818 if (ret) { 8819 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8820 "interrupt %d already in use.\n", pdev->irq); 8821 goto remove_host; 8822 } 8823 } 8824 8825 pci_save_state(ha->pdev); 8826 ha->isp_ops->enable_intrs(ha); 8827 8828 /* Start timer thread. */ 8829 qla4xxx_start_timer(ha, qla4xxx_timer, 1); 8830 8831 set_bit(AF_INIT_DONE, &ha->flags); 8832 8833 qla4_8xxx_alloc_sysfs_attr(ha); 8834 8835 printk(KERN_INFO 8836 " QLogic iSCSI HBA Driver version: %s\n" 8837 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8838 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8839 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8840 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8841 8842 /* Set the driver version */ 8843 if (is_qla80XX(ha)) 8844 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8845 8846 if (qla4xxx_setup_boot_info(ha)) 8847 ql4_printk(KERN_ERR, ha, 8848 "%s: No iSCSI boot target configured\n", __func__); 8849 8850 if (qla4xxx_sysfs_ddb_export(ha)) 8851 ql4_printk(KERN_ERR, ha, 8852 "%s: Error exporting ddb to sysfs\n", __func__); 8853 8854 /* Perform the build ddb list and login to each */ 8855 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8856 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8857 qla4xxx_wait_login_resp_boot_tgt(ha); 8858 8859 qla4xxx_create_chap_list(ha); 8860 8861 qla4xxx_create_ifaces(ha); 8862 return 0; 8863 8864 remove_host: 8865 scsi_remove_host(ha->host); 8866 8867 probe_failed: 8868 qla4xxx_free_adapter(ha); 8869 8870 probe_failed_ioconfig: 8871 pci_disable_pcie_error_reporting(pdev); 8872 scsi_host_put(ha->host); 8873 8874 probe_disable_device: 8875 pci_disable_device(pdev); 8876 8877 return ret; 8878 } 8879 8880 /** 8881 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8882 * @ha: pointer to adapter structure 8883 * 8884 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8885 * so that the other port will not re-initialize while in the process of 8886 * removing the ha due to driver unload or hba hotplug. 8887 **/ 8888 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8889 { 8890 struct scsi_qla_host *other_ha = NULL; 8891 struct pci_dev *other_pdev = NULL; 8892 int fn = ISP4XXX_PCI_FN_2; 8893 8894 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8895 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8896 fn = ISP4XXX_PCI_FN_1; 8897 8898 other_pdev = 8899 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8900 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8901 fn)); 8902 8903 /* Get other_ha if other_pdev is valid and state is enable*/ 8904 if (other_pdev) { 8905 if (atomic_read(&other_pdev->enable_cnt)) { 8906 other_ha = pci_get_drvdata(other_pdev); 8907 if (other_ha) { 8908 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8909 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8910 "Prevent %s reinit\n", __func__, 8911 dev_name(&other_ha->pdev->dev))); 8912 } 8913 } 8914 pci_dev_put(other_pdev); 8915 } 8916 } 8917 8918 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8919 struct ddb_entry *ddb_entry) 8920 { 8921 struct dev_db_entry *fw_ddb_entry = NULL; 8922 dma_addr_t fw_ddb_entry_dma; 8923 unsigned long wtime; 8924 uint32_t ddb_state; 8925 int options; 8926 int status; 8927 8928 options = LOGOUT_OPTION_CLOSE_SESSION; 8929 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8930 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8931 goto clear_ddb; 8932 } 8933 8934 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8935 &fw_ddb_entry_dma, GFP_KERNEL); 8936 if (!fw_ddb_entry) { 8937 ql4_printk(KERN_ERR, ha, 8938 "%s: Unable to allocate dma buffer\n", __func__); 8939 goto clear_ddb; 8940 } 8941 8942 wtime = jiffies + (HZ * LOGOUT_TOV); 8943 do { 8944 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8945 fw_ddb_entry, fw_ddb_entry_dma, 8946 NULL, NULL, &ddb_state, NULL, 8947 NULL, NULL); 8948 if (status == QLA_ERROR) 8949 goto free_ddb; 8950 8951 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8952 (ddb_state == DDB_DS_SESSION_FAILED)) 8953 goto free_ddb; 8954 8955 schedule_timeout_uninterruptible(HZ); 8956 } while ((time_after(wtime, jiffies))); 8957 8958 free_ddb: 8959 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8960 fw_ddb_entry, fw_ddb_entry_dma); 8961 clear_ddb: 8962 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8963 } 8964 8965 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8966 { 8967 struct ddb_entry *ddb_entry; 8968 int idx; 8969 8970 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8971 8972 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8973 if ((ddb_entry != NULL) && 8974 (ddb_entry->ddb_type == FLASH_DDB)) { 8975 8976 qla4xxx_destroy_ddb(ha, ddb_entry); 8977 /* 8978 * we have decremented the reference count of the driver 8979 * when we setup the session to have the driver unload 8980 * to be seamless without actually destroying the 8981 * session 8982 **/ 8983 try_module_get(qla4xxx_iscsi_transport.owner); 8984 iscsi_destroy_endpoint(ddb_entry->conn->ep); 8985 qla4xxx_free_ddb(ha, ddb_entry); 8986 iscsi_session_teardown(ddb_entry->sess); 8987 } 8988 } 8989 } 8990 /** 8991 * qla4xxx_remove_adapter - callback function to remove adapter. 8992 * @pci_dev: PCI device pointer 8993 **/ 8994 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 8995 { 8996 struct scsi_qla_host *ha; 8997 8998 /* 8999 * If the PCI device is disabled then it means probe_adapter had 9000 * failed and resources already cleaned up on probe_adapter exit. 9001 */ 9002 if (!pci_is_enabled(pdev)) 9003 return; 9004 9005 ha = pci_get_drvdata(pdev); 9006 9007 if (is_qla40XX(ha)) 9008 qla4xxx_prevent_other_port_reinit(ha); 9009 9010 /* destroy iface from sysfs */ 9011 qla4xxx_destroy_ifaces(ha); 9012 9013 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 9014 iscsi_boot_destroy_kset(ha->boot_kset); 9015 9016 qla4xxx_destroy_fw_ddb_session(ha); 9017 qla4_8xxx_free_sysfs_attr(ha); 9018 9019 qla4xxx_sysfs_ddb_remove(ha); 9020 scsi_remove_host(ha->host); 9021 9022 qla4xxx_free_adapter(ha); 9023 9024 scsi_host_put(ha->host); 9025 9026 pci_disable_pcie_error_reporting(pdev); 9027 pci_disable_device(pdev); 9028 } 9029 9030 /** 9031 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9032 * @ha: HA context 9033 * 9034 * At exit, the @ha's flags.enable_64bit_addressing set to indicated 9035 * supported addressing method. 9036 */ 9037 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9038 { 9039 int retval; 9040 9041 /* Update our PCI device dma_mask for full 64 bit mask */ 9042 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 9043 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 9044 dev_dbg(&ha->pdev->dev, 9045 "Failed to set 64 bit PCI consistent mask; " 9046 "using 32 bit.\n"); 9047 retval = pci_set_consistent_dma_mask(ha->pdev, 9048 DMA_BIT_MASK(32)); 9049 } 9050 } else 9051 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 9052 } 9053 9054 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 9055 { 9056 struct iscsi_cls_session *cls_sess; 9057 struct iscsi_session *sess; 9058 struct ddb_entry *ddb; 9059 int queue_depth = QL4_DEF_QDEPTH; 9060 9061 cls_sess = starget_to_session(sdev->sdev_target); 9062 sess = cls_sess->dd_data; 9063 ddb = sess->dd_data; 9064 9065 sdev->hostdata = ddb; 9066 sdev->tagged_supported = 1; 9067 9068 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9069 queue_depth = ql4xmaxqdepth; 9070 9071 scsi_activate_tcq(sdev, queue_depth); 9072 return 0; 9073 } 9074 9075 static int qla4xxx_slave_configure(struct scsi_device *sdev) 9076 { 9077 sdev->tagged_supported = 1; 9078 return 0; 9079 } 9080 9081 static void qla4xxx_slave_destroy(struct scsi_device *sdev) 9082 { 9083 scsi_deactivate_tcq(sdev, 1); 9084 } 9085 9086 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 9087 int reason) 9088 { 9089 if (!ql4xqfulltracking) 9090 return -EOPNOTSUPP; 9091 9092 return iscsi_change_queue_depth(sdev, qdepth, reason); 9093 } 9094 9095 /** 9096 * qla4xxx_del_from_active_array - returns an active srb 9097 * @ha: Pointer to host adapter structure. 9098 * @index: index into the active_array 9099 * 9100 * This routine removes and returns the srb at the specified index 9101 **/ 9102 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9103 uint32_t index) 9104 { 9105 struct srb *srb = NULL; 9106 struct scsi_cmnd *cmd = NULL; 9107 9108 cmd = scsi_host_find_tag(ha->host, index); 9109 if (!cmd) 9110 return srb; 9111 9112 srb = (struct srb *)CMD_SP(cmd); 9113 if (!srb) 9114 return srb; 9115 9116 /* update counters */ 9117 if (srb->flags & SRB_DMA_VALID) { 9118 ha->iocb_cnt -= srb->iocb_cnt; 9119 if (srb->cmd) 9120 srb->cmd->host_scribble = 9121 (unsigned char *)(unsigned long) MAX_SRBS; 9122 } 9123 return srb; 9124 } 9125 9126 /** 9127 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9128 * @ha: Pointer to host adapter structure. 9129 * @cmd: Scsi Command to wait on. 9130 * 9131 * This routine waits for the command to be returned by the Firmware 9132 * for some max time. 9133 **/ 9134 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9135 struct scsi_cmnd *cmd) 9136 { 9137 int done = 0; 9138 struct srb *rp; 9139 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9140 int ret = SUCCESS; 9141 9142 /* Dont wait on command if PCI error is being handled 9143 * by PCI AER driver 9144 */ 9145 if (unlikely(pci_channel_offline(ha->pdev)) || 9146 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9147 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9148 ha->host_no, __func__); 9149 return ret; 9150 } 9151 9152 do { 9153 /* Checking to see if its returned to OS */ 9154 rp = (struct srb *) CMD_SP(cmd); 9155 if (rp == NULL) { 9156 done++; 9157 break; 9158 } 9159 9160 msleep(2000); 9161 } while (max_wait_time--); 9162 9163 return done; 9164 } 9165 9166 /** 9167 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9168 * @ha: Pointer to host adapter structure 9169 **/ 9170 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9171 { 9172 unsigned long wait_online; 9173 9174 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9175 while (time_before(jiffies, wait_online)) { 9176 9177 if (adapter_up(ha)) 9178 return QLA_SUCCESS; 9179 9180 msleep(2000); 9181 } 9182 9183 return QLA_ERROR; 9184 } 9185 9186 /** 9187 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9188 * @ha: pointer to HBA 9189 * @t: target id 9190 * @l: lun id 9191 * 9192 * This function waits for all outstanding commands to a lun to complete. It 9193 * returns 0 if all pending commands are returned and 1 otherwise. 9194 **/ 9195 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9196 struct scsi_target *stgt, 9197 struct scsi_device *sdev) 9198 { 9199 int cnt; 9200 int status = 0; 9201 struct scsi_cmnd *cmd; 9202 9203 /* 9204 * Waiting for all commands for the designated target or dev 9205 * in the active array 9206 */ 9207 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9208 cmd = scsi_host_find_tag(ha->host, cnt); 9209 if (cmd && stgt == scsi_target(cmd->device) && 9210 (!sdev || sdev == cmd->device)) { 9211 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9212 status++; 9213 break; 9214 } 9215 } 9216 } 9217 return status; 9218 } 9219 9220 /** 9221 * qla4xxx_eh_abort - callback for abort task. 9222 * @cmd: Pointer to Linux's SCSI command structure 9223 * 9224 * This routine is called by the Linux OS to abort the specified 9225 * command. 9226 **/ 9227 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9228 { 9229 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9230 unsigned int id = cmd->device->id; 9231 unsigned int lun = cmd->device->lun; 9232 unsigned long flags; 9233 struct srb *srb = NULL; 9234 int ret = SUCCESS; 9235 int wait = 0; 9236 9237 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d: Abort command issued cmd=%p, cdb=0x%x\n", 9238 ha->host_no, id, lun, cmd, cmd->cmnd[0]); 9239 9240 spin_lock_irqsave(&ha->hardware_lock, flags); 9241 srb = (struct srb *) CMD_SP(cmd); 9242 if (!srb) { 9243 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9244 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d: Specified command has already completed.\n", 9245 ha->host_no, id, lun); 9246 return SUCCESS; 9247 } 9248 kref_get(&srb->srb_ref); 9249 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9250 9251 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9252 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 9253 ha->host_no, id, lun)); 9254 ret = FAILED; 9255 } else { 9256 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 9257 ha->host_no, id, lun)); 9258 wait = 1; 9259 } 9260 9261 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9262 9263 /* Wait for command to complete */ 9264 if (wait) { 9265 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9266 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 9267 ha->host_no, id, lun)); 9268 ret = FAILED; 9269 } 9270 } 9271 9272 ql4_printk(KERN_INFO, ha, 9273 "scsi%ld:%d:%d: Abort command - %s\n", 9274 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9275 9276 return ret; 9277 } 9278 9279 /** 9280 * qla4xxx_eh_device_reset - callback for target reset. 9281 * @cmd: Pointer to Linux's SCSI command structure 9282 * 9283 * This routine is called by the Linux OS to reset all luns on the 9284 * specified target. 9285 **/ 9286 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9287 { 9288 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9289 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9290 int ret = FAILED, stat; 9291 9292 if (!ddb_entry) 9293 return ret; 9294 9295 ret = iscsi_block_scsi_eh(cmd); 9296 if (ret) 9297 return ret; 9298 ret = FAILED; 9299 9300 ql4_printk(KERN_INFO, ha, 9301 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 9302 cmd->device->channel, cmd->device->id, cmd->device->lun); 9303 9304 DEBUG2(printk(KERN_INFO 9305 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9306 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9307 cmd, jiffies, cmd->request->timeout / HZ, 9308 ha->dpc_flags, cmd->result, cmd->allowed)); 9309 9310 /* FIXME: wait for hba to go online */ 9311 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9312 if (stat != QLA_SUCCESS) { 9313 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9314 goto eh_dev_reset_done; 9315 } 9316 9317 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9318 cmd->device)) { 9319 ql4_printk(KERN_INFO, ha, 9320 "DEVICE RESET FAILED - waiting for " 9321 "commands.\n"); 9322 goto eh_dev_reset_done; 9323 } 9324 9325 /* Send marker. */ 9326 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9327 MM_LUN_RESET) != QLA_SUCCESS) 9328 goto eh_dev_reset_done; 9329 9330 ql4_printk(KERN_INFO, ha, 9331 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 9332 ha->host_no, cmd->device->channel, cmd->device->id, 9333 cmd->device->lun); 9334 9335 ret = SUCCESS; 9336 9337 eh_dev_reset_done: 9338 9339 return ret; 9340 } 9341 9342 /** 9343 * qla4xxx_eh_target_reset - callback for target reset. 9344 * @cmd: Pointer to Linux's SCSI command structure 9345 * 9346 * This routine is called by the Linux OS to reset the target. 9347 **/ 9348 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9349 { 9350 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9351 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9352 int stat, ret; 9353 9354 if (!ddb_entry) 9355 return FAILED; 9356 9357 ret = iscsi_block_scsi_eh(cmd); 9358 if (ret) 9359 return ret; 9360 9361 starget_printk(KERN_INFO, scsi_target(cmd->device), 9362 "WARM TARGET RESET ISSUED.\n"); 9363 9364 DEBUG2(printk(KERN_INFO 9365 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9366 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9367 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 9368 ha->dpc_flags, cmd->result, cmd->allowed)); 9369 9370 stat = qla4xxx_reset_target(ha, ddb_entry); 9371 if (stat != QLA_SUCCESS) { 9372 starget_printk(KERN_INFO, scsi_target(cmd->device), 9373 "WARM TARGET RESET FAILED.\n"); 9374 return FAILED; 9375 } 9376 9377 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9378 NULL)) { 9379 starget_printk(KERN_INFO, scsi_target(cmd->device), 9380 "WARM TARGET DEVICE RESET FAILED - " 9381 "waiting for commands.\n"); 9382 return FAILED; 9383 } 9384 9385 /* Send marker. */ 9386 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9387 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9388 starget_printk(KERN_INFO, scsi_target(cmd->device), 9389 "WARM TARGET DEVICE RESET FAILED - " 9390 "marker iocb failed.\n"); 9391 return FAILED; 9392 } 9393 9394 starget_printk(KERN_INFO, scsi_target(cmd->device), 9395 "WARM TARGET RESET SUCCEEDED.\n"); 9396 return SUCCESS; 9397 } 9398 9399 /** 9400 * qla4xxx_is_eh_active - check if error handler is running 9401 * @shost: Pointer to SCSI Host struct 9402 * 9403 * This routine finds that if reset host is called in EH 9404 * scenario or from some application like sg_reset 9405 **/ 9406 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9407 { 9408 if (shost->shost_state == SHOST_RECOVERY) 9409 return 1; 9410 return 0; 9411 } 9412 9413 /** 9414 * qla4xxx_eh_host_reset - kernel callback 9415 * @cmd: Pointer to Linux's SCSI command structure 9416 * 9417 * This routine is invoked by the Linux kernel to perform fatal error 9418 * recovery on the specified adapter. 9419 **/ 9420 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9421 { 9422 int return_status = FAILED; 9423 struct scsi_qla_host *ha; 9424 9425 ha = to_qla_host(cmd->device->host); 9426 9427 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9428 qla4_83xx_set_idc_dontreset(ha); 9429 9430 /* 9431 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9432 * protocol drivers, we should not set device_state to NEED_RESET 9433 */ 9434 if (ql4xdontresethba || 9435 ((is_qla8032(ha) || is_qla8042(ha)) && 9436 qla4_83xx_idc_dontreset(ha))) { 9437 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9438 ha->host_no, __func__)); 9439 9440 /* Clear outstanding srb in queues */ 9441 if (qla4xxx_is_eh_active(cmd->device->host)) 9442 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9443 9444 return FAILED; 9445 } 9446 9447 ql4_printk(KERN_INFO, ha, 9448 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 9449 cmd->device->channel, cmd->device->id, cmd->device->lun); 9450 9451 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9452 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9453 "DEAD.\n", ha->host_no, cmd->device->channel, 9454 __func__)); 9455 9456 return FAILED; 9457 } 9458 9459 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9460 if (is_qla80XX(ha)) 9461 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9462 else 9463 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9464 } 9465 9466 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9467 return_status = SUCCESS; 9468 9469 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9470 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9471 9472 return return_status; 9473 } 9474 9475 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9476 { 9477 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9478 uint32_t mbox_sts[MBOX_REG_COUNT]; 9479 struct addr_ctrl_blk_def *acb = NULL; 9480 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9481 int rval = QLA_SUCCESS; 9482 dma_addr_t acb_dma; 9483 9484 acb = dma_alloc_coherent(&ha->pdev->dev, 9485 sizeof(struct addr_ctrl_blk_def), 9486 &acb_dma, GFP_KERNEL); 9487 if (!acb) { 9488 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9489 __func__); 9490 rval = -ENOMEM; 9491 goto exit_port_reset; 9492 } 9493 9494 memset(acb, 0, acb_len); 9495 9496 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9497 if (rval != QLA_SUCCESS) { 9498 rval = -EIO; 9499 goto exit_free_acb; 9500 } 9501 9502 rval = qla4xxx_disable_acb(ha); 9503 if (rval != QLA_SUCCESS) { 9504 rval = -EIO; 9505 goto exit_free_acb; 9506 } 9507 9508 wait_for_completion_timeout(&ha->disable_acb_comp, 9509 DISABLE_ACB_TOV * HZ); 9510 9511 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9512 if (rval != QLA_SUCCESS) { 9513 rval = -EIO; 9514 goto exit_free_acb; 9515 } 9516 9517 exit_free_acb: 9518 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9519 acb, acb_dma); 9520 exit_port_reset: 9521 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9522 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9523 return rval; 9524 } 9525 9526 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9527 { 9528 struct scsi_qla_host *ha = to_qla_host(shost); 9529 int rval = QLA_SUCCESS; 9530 uint32_t idc_ctrl; 9531 9532 if (ql4xdontresethba) { 9533 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9534 __func__)); 9535 rval = -EPERM; 9536 goto exit_host_reset; 9537 } 9538 9539 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9540 goto recover_adapter; 9541 9542 switch (reset_type) { 9543 case SCSI_ADAPTER_RESET: 9544 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9545 break; 9546 case SCSI_FIRMWARE_RESET: 9547 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9548 if (is_qla80XX(ha)) 9549 /* set firmware context reset */ 9550 set_bit(DPC_RESET_HA_FW_CONTEXT, 9551 &ha->dpc_flags); 9552 else { 9553 rval = qla4xxx_context_reset(ha); 9554 goto exit_host_reset; 9555 } 9556 } 9557 break; 9558 } 9559 9560 recover_adapter: 9561 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9562 * reset is issued by application */ 9563 if ((is_qla8032(ha) || is_qla8042(ha)) && 9564 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9565 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9566 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9567 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9568 } 9569 9570 rval = qla4xxx_recover_adapter(ha); 9571 if (rval != QLA_SUCCESS) { 9572 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9573 __func__)); 9574 rval = -EIO; 9575 } 9576 9577 exit_host_reset: 9578 return rval; 9579 } 9580 9581 /* PCI AER driver recovers from all correctable errors w/o 9582 * driver intervention. For uncorrectable errors PCI AER 9583 * driver calls the following device driver's callbacks 9584 * 9585 * - Fatal Errors - link_reset 9586 * - Non-Fatal Errors - driver's pci_error_detected() which 9587 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9588 * 9589 * PCI AER driver calls 9590 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 9591 * returns RECOVERED or NEED_RESET if fw_hung 9592 * NEED_RESET - driver's slot_reset() 9593 * DISCONNECT - device is dead & cannot recover 9594 * RECOVERED - driver's pci_resume() 9595 */ 9596 static pci_ers_result_t 9597 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9598 { 9599 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9600 9601 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9602 ha->host_no, __func__, state); 9603 9604 if (!is_aer_supported(ha)) 9605 return PCI_ERS_RESULT_NONE; 9606 9607 switch (state) { 9608 case pci_channel_io_normal: 9609 clear_bit(AF_EEH_BUSY, &ha->flags); 9610 return PCI_ERS_RESULT_CAN_RECOVER; 9611 case pci_channel_io_frozen: 9612 set_bit(AF_EEH_BUSY, &ha->flags); 9613 qla4xxx_mailbox_premature_completion(ha); 9614 qla4xxx_free_irqs(ha); 9615 pci_disable_device(pdev); 9616 /* Return back all IOs */ 9617 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9618 return PCI_ERS_RESULT_NEED_RESET; 9619 case pci_channel_io_perm_failure: 9620 set_bit(AF_EEH_BUSY, &ha->flags); 9621 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9622 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9623 return PCI_ERS_RESULT_DISCONNECT; 9624 } 9625 return PCI_ERS_RESULT_NEED_RESET; 9626 } 9627 9628 /** 9629 * qla4xxx_pci_mmio_enabled() gets called if 9630 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9631 * and read/write to the device still works. 9632 **/ 9633 static pci_ers_result_t 9634 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9635 { 9636 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9637 9638 if (!is_aer_supported(ha)) 9639 return PCI_ERS_RESULT_NONE; 9640 9641 return PCI_ERS_RESULT_RECOVERED; 9642 } 9643 9644 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9645 { 9646 uint32_t rval = QLA_ERROR; 9647 int fn; 9648 struct pci_dev *other_pdev = NULL; 9649 9650 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9651 9652 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9653 9654 if (test_bit(AF_ONLINE, &ha->flags)) { 9655 clear_bit(AF_ONLINE, &ha->flags); 9656 clear_bit(AF_LINK_UP, &ha->flags); 9657 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9658 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9659 } 9660 9661 fn = PCI_FUNC(ha->pdev->devfn); 9662 if (is_qla8022(ha)) { 9663 while (fn > 0) { 9664 fn--; 9665 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9666 ha->host_no, __func__, fn); 9667 /* Get the pci device given the domain, bus, 9668 * slot/function number */ 9669 other_pdev = pci_get_domain_bus_and_slot( 9670 pci_domain_nr(ha->pdev->bus), 9671 ha->pdev->bus->number, 9672 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9673 fn)); 9674 9675 if (!other_pdev) 9676 continue; 9677 9678 if (atomic_read(&other_pdev->enable_cnt)) { 9679 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9680 ha->host_no, __func__, fn); 9681 pci_dev_put(other_pdev); 9682 break; 9683 } 9684 pci_dev_put(other_pdev); 9685 } 9686 } else { 9687 /* this case is meant for ISP83xx/ISP84xx only */ 9688 if (qla4_83xx_can_perform_reset(ha)) { 9689 /* reset fn as iSCSI is going to perform the reset */ 9690 fn = 0; 9691 } 9692 } 9693 9694 /* The first function on the card, the reset owner will 9695 * start & initialize the firmware. The other functions 9696 * on the card will reset the firmware context 9697 */ 9698 if (!fn) { 9699 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9700 "0x%x is the owner\n", ha->host_no, __func__, 9701 ha->pdev->devfn); 9702 9703 ha->isp_ops->idc_lock(ha); 9704 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9705 QLA8XXX_DEV_COLD); 9706 ha->isp_ops->idc_unlock(ha); 9707 9708 rval = qla4_8xxx_update_idc_reg(ha); 9709 if (rval == QLA_ERROR) { 9710 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9711 ha->host_no, __func__); 9712 ha->isp_ops->idc_lock(ha); 9713 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9714 QLA8XXX_DEV_FAILED); 9715 ha->isp_ops->idc_unlock(ha); 9716 goto exit_error_recovery; 9717 } 9718 9719 clear_bit(AF_FW_RECOVERY, &ha->flags); 9720 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9721 9722 if (rval != QLA_SUCCESS) { 9723 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9724 "FAILED\n", ha->host_no, __func__); 9725 qla4xxx_free_irqs(ha); 9726 ha->isp_ops->idc_lock(ha); 9727 qla4_8xxx_clear_drv_active(ha); 9728 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9729 QLA8XXX_DEV_FAILED); 9730 ha->isp_ops->idc_unlock(ha); 9731 } else { 9732 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9733 "READY\n", ha->host_no, __func__); 9734 ha->isp_ops->idc_lock(ha); 9735 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9736 QLA8XXX_DEV_READY); 9737 /* Clear driver state register */ 9738 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9739 qla4_8xxx_set_drv_active(ha); 9740 ha->isp_ops->idc_unlock(ha); 9741 ha->isp_ops->enable_intrs(ha); 9742 } 9743 } else { 9744 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9745 "the reset owner\n", ha->host_no, __func__, 9746 ha->pdev->devfn); 9747 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9748 QLA8XXX_DEV_READY)) { 9749 clear_bit(AF_FW_RECOVERY, &ha->flags); 9750 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9751 if (rval == QLA_SUCCESS) 9752 ha->isp_ops->enable_intrs(ha); 9753 else 9754 qla4xxx_free_irqs(ha); 9755 9756 ha->isp_ops->idc_lock(ha); 9757 qla4_8xxx_set_drv_active(ha); 9758 ha->isp_ops->idc_unlock(ha); 9759 } 9760 } 9761 exit_error_recovery: 9762 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9763 return rval; 9764 } 9765 9766 static pci_ers_result_t 9767 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9768 { 9769 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9770 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9771 int rc; 9772 9773 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9774 ha->host_no, __func__); 9775 9776 if (!is_aer_supported(ha)) 9777 return PCI_ERS_RESULT_NONE; 9778 9779 /* Restore the saved state of PCIe device - 9780 * BAR registers, PCI Config space, PCIX, MSI, 9781 * IOV states 9782 */ 9783 pci_restore_state(pdev); 9784 9785 /* pci_restore_state() clears the saved_state flag of the device 9786 * save restored state which resets saved_state flag 9787 */ 9788 pci_save_state(pdev); 9789 9790 /* Initialize device or resume if in suspended state */ 9791 rc = pci_enable_device(pdev); 9792 if (rc) { 9793 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9794 "device after reset\n", ha->host_no, __func__); 9795 goto exit_slot_reset; 9796 } 9797 9798 ha->isp_ops->disable_intrs(ha); 9799 9800 if (is_qla80XX(ha)) { 9801 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9802 ret = PCI_ERS_RESULT_RECOVERED; 9803 goto exit_slot_reset; 9804 } else 9805 goto exit_slot_reset; 9806 } 9807 9808 exit_slot_reset: 9809 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9810 "device after reset\n", ha->host_no, __func__, ret); 9811 return ret; 9812 } 9813 9814 static void 9815 qla4xxx_pci_resume(struct pci_dev *pdev) 9816 { 9817 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9818 int ret; 9819 9820 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9821 ha->host_no, __func__); 9822 9823 ret = qla4xxx_wait_for_hba_online(ha); 9824 if (ret != QLA_SUCCESS) { 9825 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9826 "resume I/O from slot/link_reset\n", ha->host_no, 9827 __func__); 9828 } 9829 9830 pci_cleanup_aer_uncorrect_error_status(pdev); 9831 clear_bit(AF_EEH_BUSY, &ha->flags); 9832 } 9833 9834 static const struct pci_error_handlers qla4xxx_err_handler = { 9835 .error_detected = qla4xxx_pci_error_detected, 9836 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9837 .slot_reset = qla4xxx_pci_slot_reset, 9838 .resume = qla4xxx_pci_resume, 9839 }; 9840 9841 static struct pci_device_id qla4xxx_pci_tbl[] = { 9842 { 9843 .vendor = PCI_VENDOR_ID_QLOGIC, 9844 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9845 .subvendor = PCI_ANY_ID, 9846 .subdevice = PCI_ANY_ID, 9847 }, 9848 { 9849 .vendor = PCI_VENDOR_ID_QLOGIC, 9850 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9851 .subvendor = PCI_ANY_ID, 9852 .subdevice = PCI_ANY_ID, 9853 }, 9854 { 9855 .vendor = PCI_VENDOR_ID_QLOGIC, 9856 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9857 .subvendor = PCI_ANY_ID, 9858 .subdevice = PCI_ANY_ID, 9859 }, 9860 { 9861 .vendor = PCI_VENDOR_ID_QLOGIC, 9862 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9863 .subvendor = PCI_ANY_ID, 9864 .subdevice = PCI_ANY_ID, 9865 }, 9866 { 9867 .vendor = PCI_VENDOR_ID_QLOGIC, 9868 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9869 .subvendor = PCI_ANY_ID, 9870 .subdevice = PCI_ANY_ID, 9871 }, 9872 { 9873 .vendor = PCI_VENDOR_ID_QLOGIC, 9874 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9875 .subvendor = PCI_ANY_ID, 9876 .subdevice = PCI_ANY_ID, 9877 }, 9878 {0, 0}, 9879 }; 9880 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9881 9882 static struct pci_driver qla4xxx_pci_driver = { 9883 .name = DRIVER_NAME, 9884 .id_table = qla4xxx_pci_tbl, 9885 .probe = qla4xxx_probe_adapter, 9886 .remove = qla4xxx_remove_adapter, 9887 .err_handler = &qla4xxx_err_handler, 9888 }; 9889 9890 static int __init qla4xxx_module_init(void) 9891 { 9892 int ret; 9893 9894 /* Allocate cache for SRBs. */ 9895 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9896 SLAB_HWCACHE_ALIGN, NULL); 9897 if (srb_cachep == NULL) { 9898 printk(KERN_ERR 9899 "%s: Unable to allocate SRB cache..." 9900 "Failing load!\n", DRIVER_NAME); 9901 ret = -ENOMEM; 9902 goto no_srp_cache; 9903 } 9904 9905 /* Derive version string. */ 9906 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9907 if (ql4xextended_error_logging) 9908 strcat(qla4xxx_version_str, "-debug"); 9909 9910 qla4xxx_scsi_transport = 9911 iscsi_register_transport(&qla4xxx_iscsi_transport); 9912 if (!qla4xxx_scsi_transport){ 9913 ret = -ENODEV; 9914 goto release_srb_cache; 9915 } 9916 9917 ret = pci_register_driver(&qla4xxx_pci_driver); 9918 if (ret) 9919 goto unregister_transport; 9920 9921 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9922 return 0; 9923 9924 unregister_transport: 9925 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9926 release_srb_cache: 9927 kmem_cache_destroy(srb_cachep); 9928 no_srp_cache: 9929 return ret; 9930 } 9931 9932 static void __exit qla4xxx_module_exit(void) 9933 { 9934 pci_unregister_driver(&qla4xxx_pci_driver); 9935 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9936 kmem_cache_destroy(srb_cachep); 9937 } 9938 9939 module_init(qla4xxx_module_init); 9940 module_exit(qla4xxx_module_exit); 9941 9942 MODULE_AUTHOR("QLogic Corporation"); 9943 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9944 MODULE_LICENSE("GPL"); 9945 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9946