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); 152 153 /* 154 * SCSI host template entry points 155 */ 156 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 157 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 158 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 159 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 160 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 161 static int qla4xxx_slave_alloc(struct scsi_device *device); 162 static int qla4xxx_slave_configure(struct scsi_device *device); 163 static void qla4xxx_slave_destroy(struct scsi_device *sdev); 164 static umode_t qla4_attr_is_visible(int param_type, int param); 165 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); 166 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 167 int reason); 168 169 /* 170 * iSCSI Flash DDB sysfs entry points 171 */ 172 static int 173 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 174 struct iscsi_bus_flash_conn *fnode_conn, 175 void *data, int len); 176 static int 177 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 178 int param, char *buf); 179 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 180 int len); 181 static int 182 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess); 183 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 184 struct iscsi_bus_flash_conn *fnode_conn); 185 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 186 struct iscsi_bus_flash_conn *fnode_conn); 187 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess); 188 189 static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 190 QLA82XX_LEGACY_INTR_CONFIG; 191 192 static struct scsi_host_template qla4xxx_driver_template = { 193 .module = THIS_MODULE, 194 .name = DRIVER_NAME, 195 .proc_name = DRIVER_NAME, 196 .queuecommand = qla4xxx_queuecommand, 197 198 .eh_abort_handler = qla4xxx_eh_abort, 199 .eh_device_reset_handler = qla4xxx_eh_device_reset, 200 .eh_target_reset_handler = qla4xxx_eh_target_reset, 201 .eh_host_reset_handler = qla4xxx_eh_host_reset, 202 .eh_timed_out = qla4xxx_eh_cmd_timed_out, 203 204 .slave_configure = qla4xxx_slave_configure, 205 .slave_alloc = qla4xxx_slave_alloc, 206 .slave_destroy = qla4xxx_slave_destroy, 207 .change_queue_depth = qla4xxx_change_queue_depth, 208 209 .this_id = -1, 210 .cmd_per_lun = 3, 211 .use_clustering = ENABLE_CLUSTERING, 212 .sg_tablesize = SG_ALL, 213 214 .max_sectors = 0xFFFF, 215 .shost_attrs = qla4xxx_host_attrs, 216 .host_reset = qla4xxx_host_reset, 217 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 218 }; 219 220 static struct iscsi_transport qla4xxx_iscsi_transport = { 221 .owner = THIS_MODULE, 222 .name = DRIVER_NAME, 223 .caps = CAP_TEXT_NEGO | 224 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 225 CAP_DATADGST | CAP_LOGIN_OFFLOAD | 226 CAP_MULTI_R2T, 227 .attr_is_visible = qla4_attr_is_visible, 228 .create_session = qla4xxx_session_create, 229 .destroy_session = qla4xxx_session_destroy, 230 .start_conn = qla4xxx_conn_start, 231 .create_conn = qla4xxx_conn_create, 232 .bind_conn = qla4xxx_conn_bind, 233 .stop_conn = iscsi_conn_stop, 234 .destroy_conn = qla4xxx_conn_destroy, 235 .set_param = iscsi_set_param, 236 .get_conn_param = qla4xxx_conn_get_param, 237 .get_session_param = qla4xxx_session_get_param, 238 .get_ep_param = qla4xxx_get_ep_param, 239 .ep_connect = qla4xxx_ep_connect, 240 .ep_poll = qla4xxx_ep_poll, 241 .ep_disconnect = qla4xxx_ep_disconnect, 242 .get_stats = qla4xxx_conn_get_stats, 243 .send_pdu = iscsi_conn_send_pdu, 244 .xmit_task = qla4xxx_task_xmit, 245 .cleanup_task = qla4xxx_task_cleanup, 246 .alloc_pdu = qla4xxx_alloc_pdu, 247 248 .get_host_param = qla4xxx_host_get_param, 249 .set_iface_param = qla4xxx_iface_set_param, 250 .get_iface_param = qla4xxx_get_iface_param, 251 .bsg_request = qla4xxx_bsg_request, 252 .send_ping = qla4xxx_send_ping, 253 .get_chap = qla4xxx_get_chap_list, 254 .delete_chap = qla4xxx_delete_chap, 255 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param, 256 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param, 257 .new_flashnode = qla4xxx_sysfs_ddb_add, 258 .del_flashnode = qla4xxx_sysfs_ddb_delete, 259 .login_flashnode = qla4xxx_sysfs_ddb_login, 260 .logout_flashnode = qla4xxx_sysfs_ddb_logout, 261 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid, 262 }; 263 264 static struct scsi_transport_template *qla4xxx_scsi_transport; 265 266 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 267 uint32_t iface_type, uint32_t payload_size, 268 uint32_t pid, struct sockaddr *dst_addr) 269 { 270 struct scsi_qla_host *ha = to_qla_host(shost); 271 struct sockaddr_in *addr; 272 struct sockaddr_in6 *addr6; 273 uint32_t options = 0; 274 uint8_t ipaddr[IPv6_ADDR_LEN]; 275 int rval; 276 277 memset(ipaddr, 0, IPv6_ADDR_LEN); 278 /* IPv4 to IPv4 */ 279 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && 280 (dst_addr->sa_family == AF_INET)) { 281 addr = (struct sockaddr_in *)dst_addr; 282 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); 283 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " 284 "dest: %pI4\n", __func__, 285 &ha->ip_config.ip_address, ipaddr)); 286 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, 287 ipaddr); 288 if (rval) 289 rval = -EINVAL; 290 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && 291 (dst_addr->sa_family == AF_INET6)) { 292 /* IPv6 to IPv6 */ 293 addr6 = (struct sockaddr_in6 *)dst_addr; 294 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); 295 296 options |= PING_IPV6_PROTOCOL_ENABLE; 297 298 /* Ping using LinkLocal address */ 299 if ((iface_num == 0) || (iface_num == 1)) { 300 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " 301 "src: %pI6 dest: %pI6\n", __func__, 302 &ha->ip_config.ipv6_link_local_addr, 303 ipaddr)); 304 options |= PING_IPV6_LINKLOCAL_ADDR; 305 rval = qla4xxx_ping_iocb(ha, options, payload_size, 306 pid, ipaddr); 307 } else { 308 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " 309 "not supported\n", __func__, iface_num); 310 rval = -ENOSYS; 311 goto exit_send_ping; 312 } 313 314 /* 315 * If ping using LinkLocal address fails, try ping using 316 * IPv6 address 317 */ 318 if (rval != QLA_SUCCESS) { 319 options &= ~PING_IPV6_LINKLOCAL_ADDR; 320 if (iface_num == 0) { 321 options |= PING_IPV6_ADDR0; 322 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 323 "Ping src: %pI6 " 324 "dest: %pI6\n", __func__, 325 &ha->ip_config.ipv6_addr0, 326 ipaddr)); 327 } else if (iface_num == 1) { 328 options |= PING_IPV6_ADDR1; 329 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 330 "Ping src: %pI6 " 331 "dest: %pI6\n", __func__, 332 &ha->ip_config.ipv6_addr1, 333 ipaddr)); 334 } 335 rval = qla4xxx_ping_iocb(ha, options, payload_size, 336 pid, ipaddr); 337 if (rval) 338 rval = -EINVAL; 339 } 340 } else 341 rval = -ENOSYS; 342 exit_send_ping: 343 return rval; 344 } 345 346 static umode_t qla4_attr_is_visible(int param_type, int param) 347 { 348 switch (param_type) { 349 case ISCSI_HOST_PARAM: 350 switch (param) { 351 case ISCSI_HOST_PARAM_HWADDRESS: 352 case ISCSI_HOST_PARAM_IPADDRESS: 353 case ISCSI_HOST_PARAM_INITIATOR_NAME: 354 case ISCSI_HOST_PARAM_PORT_STATE: 355 case ISCSI_HOST_PARAM_PORT_SPEED: 356 return S_IRUGO; 357 default: 358 return 0; 359 } 360 case ISCSI_PARAM: 361 switch (param) { 362 case ISCSI_PARAM_PERSISTENT_ADDRESS: 363 case ISCSI_PARAM_PERSISTENT_PORT: 364 case ISCSI_PARAM_CONN_ADDRESS: 365 case ISCSI_PARAM_CONN_PORT: 366 case ISCSI_PARAM_TARGET_NAME: 367 case ISCSI_PARAM_TPGT: 368 case ISCSI_PARAM_TARGET_ALIAS: 369 case ISCSI_PARAM_MAX_BURST: 370 case ISCSI_PARAM_MAX_R2T: 371 case ISCSI_PARAM_FIRST_BURST: 372 case ISCSI_PARAM_MAX_RECV_DLENGTH: 373 case ISCSI_PARAM_MAX_XMIT_DLENGTH: 374 case ISCSI_PARAM_IFACE_NAME: 375 case ISCSI_PARAM_CHAP_OUT_IDX: 376 case ISCSI_PARAM_CHAP_IN_IDX: 377 case ISCSI_PARAM_USERNAME: 378 case ISCSI_PARAM_PASSWORD: 379 case ISCSI_PARAM_USERNAME_IN: 380 case ISCSI_PARAM_PASSWORD_IN: 381 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE: 382 case ISCSI_PARAM_DISCOVERY_SESS: 383 case ISCSI_PARAM_PORTAL_TYPE: 384 case ISCSI_PARAM_CHAP_AUTH_EN: 385 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN: 386 case ISCSI_PARAM_BIDI_CHAP_EN: 387 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL: 388 case ISCSI_PARAM_DEF_TIME2WAIT: 389 case ISCSI_PARAM_DEF_TIME2RETAIN: 390 case ISCSI_PARAM_HDRDGST_EN: 391 case ISCSI_PARAM_DATADGST_EN: 392 case ISCSI_PARAM_INITIAL_R2T_EN: 393 case ISCSI_PARAM_IMM_DATA_EN: 394 case ISCSI_PARAM_PDU_INORDER_EN: 395 case ISCSI_PARAM_DATASEQ_INORDER_EN: 396 case ISCSI_PARAM_MAX_SEGMENT_SIZE: 397 case ISCSI_PARAM_TCP_TIMESTAMP_STAT: 398 case ISCSI_PARAM_TCP_WSF_DISABLE: 399 case ISCSI_PARAM_TCP_NAGLE_DISABLE: 400 case ISCSI_PARAM_TCP_TIMER_SCALE: 401 case ISCSI_PARAM_TCP_TIMESTAMP_EN: 402 case ISCSI_PARAM_TCP_XMIT_WSF: 403 case ISCSI_PARAM_TCP_RECV_WSF: 404 case ISCSI_PARAM_IP_FRAGMENT_DISABLE: 405 case ISCSI_PARAM_IPV4_TOS: 406 case ISCSI_PARAM_IPV6_TC: 407 case ISCSI_PARAM_IPV6_FLOW_LABEL: 408 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6: 409 case ISCSI_PARAM_KEEPALIVE_TMO: 410 case ISCSI_PARAM_LOCAL_PORT: 411 case ISCSI_PARAM_ISID: 412 case ISCSI_PARAM_TSID: 413 case ISCSI_PARAM_DEF_TASKMGMT_TMO: 414 case ISCSI_PARAM_ERL: 415 case ISCSI_PARAM_STATSN: 416 case ISCSI_PARAM_EXP_STATSN: 417 case ISCSI_PARAM_DISCOVERY_PARENT_IDX: 418 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE: 419 return S_IRUGO; 420 default: 421 return 0; 422 } 423 case ISCSI_NET_PARAM: 424 switch (param) { 425 case ISCSI_NET_PARAM_IPV4_ADDR: 426 case ISCSI_NET_PARAM_IPV4_SUBNET: 427 case ISCSI_NET_PARAM_IPV4_GW: 428 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 429 case ISCSI_NET_PARAM_IFACE_ENABLE: 430 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 431 case ISCSI_NET_PARAM_IPV6_ADDR: 432 case ISCSI_NET_PARAM_IPV6_ROUTER: 433 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 434 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 435 case ISCSI_NET_PARAM_VLAN_ID: 436 case ISCSI_NET_PARAM_VLAN_PRIORITY: 437 case ISCSI_NET_PARAM_VLAN_ENABLED: 438 case ISCSI_NET_PARAM_MTU: 439 case ISCSI_NET_PARAM_PORT: 440 return S_IRUGO; 441 default: 442 return 0; 443 } 444 case ISCSI_FLASHNODE_PARAM: 445 switch (param) { 446 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 447 case ISCSI_FLASHNODE_PORTAL_TYPE: 448 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 449 case ISCSI_FLASHNODE_DISCOVERY_SESS: 450 case ISCSI_FLASHNODE_ENTRY_EN: 451 case ISCSI_FLASHNODE_HDR_DGST_EN: 452 case ISCSI_FLASHNODE_DATA_DGST_EN: 453 case ISCSI_FLASHNODE_IMM_DATA_EN: 454 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 455 case ISCSI_FLASHNODE_DATASEQ_INORDER: 456 case ISCSI_FLASHNODE_PDU_INORDER: 457 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 458 case ISCSI_FLASHNODE_SNACK_REQ_EN: 459 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 460 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 461 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 462 case ISCSI_FLASHNODE_ERL: 463 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 464 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 465 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 466 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 467 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 468 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 469 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 470 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 471 case ISCSI_FLASHNODE_FIRST_BURST: 472 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 473 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 474 case ISCSI_FLASHNODE_MAX_R2T: 475 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 476 case ISCSI_FLASHNODE_ISID: 477 case ISCSI_FLASHNODE_TSID: 478 case ISCSI_FLASHNODE_PORT: 479 case ISCSI_FLASHNODE_MAX_BURST: 480 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 481 case ISCSI_FLASHNODE_IPADDR: 482 case ISCSI_FLASHNODE_ALIAS: 483 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 484 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 485 case ISCSI_FLASHNODE_LOCAL_PORT: 486 case ISCSI_FLASHNODE_IPV4_TOS: 487 case ISCSI_FLASHNODE_IPV6_TC: 488 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 489 case ISCSI_FLASHNODE_NAME: 490 case ISCSI_FLASHNODE_TPGT: 491 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 492 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 493 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 494 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 495 case ISCSI_FLASHNODE_TCP_RECV_WSF: 496 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 497 case ISCSI_FLASHNODE_USERNAME: 498 case ISCSI_FLASHNODE_PASSWORD: 499 case ISCSI_FLASHNODE_STATSN: 500 case ISCSI_FLASHNODE_EXP_STATSN: 501 case ISCSI_FLASHNODE_IS_BOOT_TGT: 502 return S_IRUGO; 503 default: 504 return 0; 505 } 506 } 507 508 return 0; 509 } 510 511 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 512 uint32_t *num_entries, char *buf) 513 { 514 struct scsi_qla_host *ha = to_qla_host(shost); 515 struct ql4_chap_table *chap_table; 516 struct iscsi_chap_rec *chap_rec; 517 int max_chap_entries = 0; 518 int valid_chap_entries = 0; 519 int ret = 0, i; 520 521 if (is_qla80XX(ha)) 522 max_chap_entries = (ha->hw.flt_chap_size / 2) / 523 sizeof(struct ql4_chap_table); 524 else 525 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 526 527 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 528 __func__, *num_entries, chap_tbl_idx); 529 530 if (!buf) { 531 ret = -ENOMEM; 532 goto exit_get_chap_list; 533 } 534 535 chap_rec = (struct iscsi_chap_rec *) buf; 536 mutex_lock(&ha->chap_sem); 537 for (i = chap_tbl_idx; i < max_chap_entries; i++) { 538 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 539 if (chap_table->cookie != 540 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) 541 continue; 542 543 chap_rec->chap_tbl_idx = i; 544 strncpy(chap_rec->username, chap_table->name, 545 ISCSI_CHAP_AUTH_NAME_MAX_LEN); 546 strncpy(chap_rec->password, chap_table->secret, 547 QL4_CHAP_MAX_SECRET_LEN); 548 chap_rec->password_length = chap_table->secret_len; 549 550 if (chap_table->flags & BIT_7) /* local */ 551 chap_rec->chap_type = CHAP_TYPE_OUT; 552 553 if (chap_table->flags & BIT_6) /* peer */ 554 chap_rec->chap_type = CHAP_TYPE_IN; 555 556 chap_rec++; 557 558 valid_chap_entries++; 559 if (valid_chap_entries == *num_entries) 560 break; 561 else 562 continue; 563 } 564 mutex_unlock(&ha->chap_sem); 565 566 exit_get_chap_list: 567 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 568 __func__, valid_chap_entries); 569 *num_entries = valid_chap_entries; 570 return ret; 571 } 572 573 static int __qla4xxx_is_chap_active(struct device *dev, void *data) 574 { 575 int ret = 0; 576 uint16_t *chap_tbl_idx = (uint16_t *) data; 577 struct iscsi_cls_session *cls_session; 578 struct iscsi_session *sess; 579 struct ddb_entry *ddb_entry; 580 581 if (!iscsi_is_session_dev(dev)) 582 goto exit_is_chap_active; 583 584 cls_session = iscsi_dev_to_session(dev); 585 sess = cls_session->dd_data; 586 ddb_entry = sess->dd_data; 587 588 if (iscsi_session_chkready(cls_session)) 589 goto exit_is_chap_active; 590 591 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 592 ret = 1; 593 594 exit_is_chap_active: 595 return ret; 596 } 597 598 static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 599 uint16_t chap_tbl_idx) 600 { 601 int ret = 0; 602 603 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 604 __qla4xxx_is_chap_active); 605 606 return ret; 607 } 608 609 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 610 { 611 struct scsi_qla_host *ha = to_qla_host(shost); 612 struct ql4_chap_table *chap_table; 613 dma_addr_t chap_dma; 614 int max_chap_entries = 0; 615 uint32_t offset = 0; 616 uint32_t chap_size; 617 int ret = 0; 618 619 chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 620 if (chap_table == NULL) 621 return -ENOMEM; 622 623 memset(chap_table, 0, sizeof(struct ql4_chap_table)); 624 625 if (is_qla80XX(ha)) 626 max_chap_entries = (ha->hw.flt_chap_size / 2) / 627 sizeof(struct ql4_chap_table); 628 else 629 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 630 631 if (chap_tbl_idx > max_chap_entries) { 632 ret = -EINVAL; 633 goto exit_delete_chap; 634 } 635 636 /* Check if chap index is in use. 637 * If chap is in use don't delet chap entry */ 638 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 639 if (ret) { 640 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 641 "delete from flash\n", chap_tbl_idx); 642 ret = -EBUSY; 643 goto exit_delete_chap; 644 } 645 646 chap_size = sizeof(struct ql4_chap_table); 647 if (is_qla40XX(ha)) 648 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 649 else { 650 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 651 /* flt_chap_size is CHAP table size for both ports 652 * so divide it by 2 to calculate the offset for second port 653 */ 654 if (ha->port_num == 1) 655 offset += (ha->hw.flt_chap_size / 2); 656 offset += (chap_tbl_idx * chap_size); 657 } 658 659 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 660 if (ret != QLA_SUCCESS) { 661 ret = -EINVAL; 662 goto exit_delete_chap; 663 } 664 665 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 666 __le16_to_cpu(chap_table->cookie))); 667 668 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 669 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 670 goto exit_delete_chap; 671 } 672 673 chap_table->cookie = __constant_cpu_to_le16(0xFFFF); 674 675 offset = FLASH_CHAP_OFFSET | 676 (chap_tbl_idx * sizeof(struct ql4_chap_table)); 677 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 678 FLASH_OPT_RMW_COMMIT); 679 if (ret == QLA_SUCCESS && ha->chap_list) { 680 mutex_lock(&ha->chap_sem); 681 /* Update ha chap_list cache */ 682 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 683 chap_table, sizeof(struct ql4_chap_table)); 684 mutex_unlock(&ha->chap_sem); 685 } 686 if (ret != QLA_SUCCESS) 687 ret = -EINVAL; 688 689 exit_delete_chap: 690 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 691 return ret; 692 } 693 694 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 695 enum iscsi_param_type param_type, 696 int param, char *buf) 697 { 698 struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 699 struct scsi_qla_host *ha = to_qla_host(shost); 700 int len = -ENOSYS; 701 702 if (param_type != ISCSI_NET_PARAM) 703 return -ENOSYS; 704 705 switch (param) { 706 case ISCSI_NET_PARAM_IPV4_ADDR: 707 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 708 break; 709 case ISCSI_NET_PARAM_IPV4_SUBNET: 710 len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 711 break; 712 case ISCSI_NET_PARAM_IPV4_GW: 713 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 714 break; 715 case ISCSI_NET_PARAM_IFACE_ENABLE: 716 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 717 len = sprintf(buf, "%s\n", 718 (ha->ip_config.ipv4_options & 719 IPOPT_IPV4_PROTOCOL_ENABLE) ? 720 "enabled" : "disabled"); 721 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 722 len = sprintf(buf, "%s\n", 723 (ha->ip_config.ipv6_options & 724 IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 725 "enabled" : "disabled"); 726 break; 727 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 728 len = sprintf(buf, "%s\n", 729 (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 730 "dhcp" : "static"); 731 break; 732 case ISCSI_NET_PARAM_IPV6_ADDR: 733 if (iface->iface_num == 0) 734 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 735 if (iface->iface_num == 1) 736 len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 737 break; 738 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 739 len = sprintf(buf, "%pI6\n", 740 &ha->ip_config.ipv6_link_local_addr); 741 break; 742 case ISCSI_NET_PARAM_IPV6_ROUTER: 743 len = sprintf(buf, "%pI6\n", 744 &ha->ip_config.ipv6_default_router_addr); 745 break; 746 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 747 len = sprintf(buf, "%s\n", 748 (ha->ip_config.ipv6_addl_options & 749 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 750 "nd" : "static"); 751 break; 752 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 753 len = sprintf(buf, "%s\n", 754 (ha->ip_config.ipv6_addl_options & 755 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 756 "auto" : "static"); 757 break; 758 case ISCSI_NET_PARAM_VLAN_ID: 759 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 760 len = sprintf(buf, "%d\n", 761 (ha->ip_config.ipv4_vlan_tag & 762 ISCSI_MAX_VLAN_ID)); 763 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 764 len = sprintf(buf, "%d\n", 765 (ha->ip_config.ipv6_vlan_tag & 766 ISCSI_MAX_VLAN_ID)); 767 break; 768 case ISCSI_NET_PARAM_VLAN_PRIORITY: 769 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 770 len = sprintf(buf, "%d\n", 771 ((ha->ip_config.ipv4_vlan_tag >> 13) & 772 ISCSI_MAX_VLAN_PRIORITY)); 773 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 774 len = sprintf(buf, "%d\n", 775 ((ha->ip_config.ipv6_vlan_tag >> 13) & 776 ISCSI_MAX_VLAN_PRIORITY)); 777 break; 778 case ISCSI_NET_PARAM_VLAN_ENABLED: 779 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 780 len = sprintf(buf, "%s\n", 781 (ha->ip_config.ipv4_options & 782 IPOPT_VLAN_TAGGING_ENABLE) ? 783 "enabled" : "disabled"); 784 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 785 len = sprintf(buf, "%s\n", 786 (ha->ip_config.ipv6_options & 787 IPV6_OPT_VLAN_TAGGING_ENABLE) ? 788 "enabled" : "disabled"); 789 break; 790 case ISCSI_NET_PARAM_MTU: 791 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 792 break; 793 case ISCSI_NET_PARAM_PORT: 794 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 795 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port); 796 else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 797 len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port); 798 break; 799 default: 800 len = -ENOSYS; 801 } 802 803 return len; 804 } 805 806 static struct iscsi_endpoint * 807 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 808 int non_blocking) 809 { 810 int ret; 811 struct iscsi_endpoint *ep; 812 struct qla_endpoint *qla_ep; 813 struct scsi_qla_host *ha; 814 struct sockaddr_in *addr; 815 struct sockaddr_in6 *addr6; 816 817 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 818 if (!shost) { 819 ret = -ENXIO; 820 printk(KERN_ERR "%s: shost is NULL\n", 821 __func__); 822 return ERR_PTR(ret); 823 } 824 825 ha = iscsi_host_priv(shost); 826 827 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 828 if (!ep) { 829 ret = -ENOMEM; 830 return ERR_PTR(ret); 831 } 832 833 qla_ep = ep->dd_data; 834 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 835 if (dst_addr->sa_family == AF_INET) { 836 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 837 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 838 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 839 (char *)&addr->sin_addr)); 840 } else if (dst_addr->sa_family == AF_INET6) { 841 memcpy(&qla_ep->dst_addr, dst_addr, 842 sizeof(struct sockaddr_in6)); 843 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 844 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 845 (char *)&addr6->sin6_addr)); 846 } 847 848 qla_ep->host = shost; 849 850 return ep; 851 } 852 853 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 854 { 855 struct qla_endpoint *qla_ep; 856 struct scsi_qla_host *ha; 857 int ret = 0; 858 859 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 860 qla_ep = ep->dd_data; 861 ha = to_qla_host(qla_ep->host); 862 863 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 864 ret = 1; 865 866 return ret; 867 } 868 869 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 870 { 871 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 872 iscsi_destroy_endpoint(ep); 873 } 874 875 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 876 enum iscsi_param param, 877 char *buf) 878 { 879 struct qla_endpoint *qla_ep = ep->dd_data; 880 struct sockaddr *dst_addr; 881 882 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 883 884 switch (param) { 885 case ISCSI_PARAM_CONN_PORT: 886 case ISCSI_PARAM_CONN_ADDRESS: 887 if (!qla_ep) 888 return -ENOTCONN; 889 890 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 891 if (!dst_addr) 892 return -ENOTCONN; 893 894 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 895 &qla_ep->dst_addr, param, buf); 896 default: 897 return -ENOSYS; 898 } 899 } 900 901 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 902 struct iscsi_stats *stats) 903 { 904 struct iscsi_session *sess; 905 struct iscsi_cls_session *cls_sess; 906 struct ddb_entry *ddb_entry; 907 struct scsi_qla_host *ha; 908 struct ql_iscsi_stats *ql_iscsi_stats; 909 int stats_size; 910 int ret; 911 dma_addr_t iscsi_stats_dma; 912 913 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 914 915 cls_sess = iscsi_conn_to_session(cls_conn); 916 sess = cls_sess->dd_data; 917 ddb_entry = sess->dd_data; 918 ha = ddb_entry->ha; 919 920 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 921 /* Allocate memory */ 922 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 923 &iscsi_stats_dma, GFP_KERNEL); 924 if (!ql_iscsi_stats) { 925 ql4_printk(KERN_ERR, ha, 926 "Unable to allocate memory for iscsi stats\n"); 927 goto exit_get_stats; 928 } 929 930 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 931 iscsi_stats_dma); 932 if (ret != QLA_SUCCESS) { 933 ql4_printk(KERN_ERR, ha, 934 "Unable to retrieve iscsi stats\n"); 935 goto free_stats; 936 } 937 938 /* octets */ 939 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 940 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 941 /* xmit pdus */ 942 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 943 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 944 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 945 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 946 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 947 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 948 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 949 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 950 /* recv pdus */ 951 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 952 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 953 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 954 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 955 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 956 stats->logoutrsp_pdus = 957 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 958 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 959 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 960 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 961 962 free_stats: 963 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 964 iscsi_stats_dma); 965 exit_get_stats: 966 return; 967 } 968 969 static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 970 { 971 struct iscsi_cls_session *session; 972 struct iscsi_session *sess; 973 unsigned long flags; 974 enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 975 976 session = starget_to_session(scsi_target(sc->device)); 977 sess = session->dd_data; 978 979 spin_lock_irqsave(&session->lock, flags); 980 if (session->state == ISCSI_SESSION_FAILED) 981 ret = BLK_EH_RESET_TIMER; 982 spin_unlock_irqrestore(&session->lock, flags); 983 984 return ret; 985 } 986 987 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 988 { 989 struct scsi_qla_host *ha = to_qla_host(shost); 990 struct iscsi_cls_host *ihost = shost->shost_data; 991 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 992 993 qla4xxx_get_firmware_state(ha); 994 995 switch (ha->addl_fw_state & 0x0F00) { 996 case FW_ADDSTATE_LINK_SPEED_10MBPS: 997 speed = ISCSI_PORT_SPEED_10MBPS; 998 break; 999 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1000 speed = ISCSI_PORT_SPEED_100MBPS; 1001 break; 1002 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1003 speed = ISCSI_PORT_SPEED_1GBPS; 1004 break; 1005 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1006 speed = ISCSI_PORT_SPEED_10GBPS; 1007 break; 1008 } 1009 ihost->port_speed = speed; 1010 } 1011 1012 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1013 { 1014 struct scsi_qla_host *ha = to_qla_host(shost); 1015 struct iscsi_cls_host *ihost = shost->shost_data; 1016 uint32_t state = ISCSI_PORT_STATE_DOWN; 1017 1018 if (test_bit(AF_LINK_UP, &ha->flags)) 1019 state = ISCSI_PORT_STATE_UP; 1020 1021 ihost->port_state = state; 1022 } 1023 1024 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1025 enum iscsi_host_param param, char *buf) 1026 { 1027 struct scsi_qla_host *ha = to_qla_host(shost); 1028 int len; 1029 1030 switch (param) { 1031 case ISCSI_HOST_PARAM_HWADDRESS: 1032 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1033 break; 1034 case ISCSI_HOST_PARAM_IPADDRESS: 1035 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1036 break; 1037 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1038 len = sprintf(buf, "%s\n", ha->name_string); 1039 break; 1040 case ISCSI_HOST_PARAM_PORT_STATE: 1041 qla4xxx_set_port_state(shost); 1042 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1043 break; 1044 case ISCSI_HOST_PARAM_PORT_SPEED: 1045 qla4xxx_set_port_speed(shost); 1046 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1047 break; 1048 default: 1049 return -ENOSYS; 1050 } 1051 1052 return len; 1053 } 1054 1055 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1056 { 1057 if (ha->iface_ipv4) 1058 return; 1059 1060 /* IPv4 */ 1061 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1062 &qla4xxx_iscsi_transport, 1063 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1064 if (!ha->iface_ipv4) 1065 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1066 "iface0.\n"); 1067 } 1068 1069 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1070 { 1071 if (!ha->iface_ipv6_0) 1072 /* IPv6 iface-0 */ 1073 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1074 &qla4xxx_iscsi_transport, 1075 ISCSI_IFACE_TYPE_IPV6, 0, 1076 0); 1077 if (!ha->iface_ipv6_0) 1078 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1079 "iface0.\n"); 1080 1081 if (!ha->iface_ipv6_1) 1082 /* IPv6 iface-1 */ 1083 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1084 &qla4xxx_iscsi_transport, 1085 ISCSI_IFACE_TYPE_IPV6, 1, 1086 0); 1087 if (!ha->iface_ipv6_1) 1088 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1089 "iface1.\n"); 1090 } 1091 1092 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 1093 { 1094 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 1095 qla4xxx_create_ipv4_iface(ha); 1096 1097 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 1098 qla4xxx_create_ipv6_iface(ha); 1099 } 1100 1101 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 1102 { 1103 if (ha->iface_ipv4) { 1104 iscsi_destroy_iface(ha->iface_ipv4); 1105 ha->iface_ipv4 = NULL; 1106 } 1107 } 1108 1109 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 1110 { 1111 if (ha->iface_ipv6_0) { 1112 iscsi_destroy_iface(ha->iface_ipv6_0); 1113 ha->iface_ipv6_0 = NULL; 1114 } 1115 if (ha->iface_ipv6_1) { 1116 iscsi_destroy_iface(ha->iface_ipv6_1); 1117 ha->iface_ipv6_1 = NULL; 1118 } 1119 } 1120 1121 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 1122 { 1123 qla4xxx_destroy_ipv4_iface(ha); 1124 qla4xxx_destroy_ipv6_iface(ha); 1125 } 1126 1127 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 1128 struct iscsi_iface_param_info *iface_param, 1129 struct addr_ctrl_blk *init_fw_cb) 1130 { 1131 /* 1132 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 1133 * iface_num 1 is valid only for IPv6 Addr. 1134 */ 1135 switch (iface_param->param) { 1136 case ISCSI_NET_PARAM_IPV6_ADDR: 1137 if (iface_param->iface_num & 0x1) 1138 /* IPv6 Addr 1 */ 1139 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 1140 sizeof(init_fw_cb->ipv6_addr1)); 1141 else 1142 /* IPv6 Addr 0 */ 1143 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 1144 sizeof(init_fw_cb->ipv6_addr0)); 1145 break; 1146 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1147 if (iface_param->iface_num & 0x1) 1148 break; 1149 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 1150 sizeof(init_fw_cb->ipv6_if_id)); 1151 break; 1152 case ISCSI_NET_PARAM_IPV6_ROUTER: 1153 if (iface_param->iface_num & 0x1) 1154 break; 1155 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 1156 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 1157 break; 1158 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1159 /* Autocfg applies to even interface */ 1160 if (iface_param->iface_num & 0x1) 1161 break; 1162 1163 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 1164 init_fw_cb->ipv6_addtl_opts &= 1165 cpu_to_le16( 1166 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 1167 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 1168 init_fw_cb->ipv6_addtl_opts |= 1169 cpu_to_le16( 1170 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 1171 else 1172 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 1173 "IPv6 addr\n"); 1174 break; 1175 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1176 /* Autocfg applies to even interface */ 1177 if (iface_param->iface_num & 0x1) 1178 break; 1179 1180 if (iface_param->value[0] == 1181 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 1182 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 1183 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 1184 else if (iface_param->value[0] == 1185 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 1186 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 1187 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 1188 else 1189 ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 1190 "IPv6 linklocal addr\n"); 1191 break; 1192 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 1193 /* Autocfg applies to even interface */ 1194 if (iface_param->iface_num & 0x1) 1195 break; 1196 1197 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 1198 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 1199 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 1200 break; 1201 case ISCSI_NET_PARAM_IFACE_ENABLE: 1202 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 1203 init_fw_cb->ipv6_opts |= 1204 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 1205 qla4xxx_create_ipv6_iface(ha); 1206 } else { 1207 init_fw_cb->ipv6_opts &= 1208 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 1209 0xFFFF); 1210 qla4xxx_destroy_ipv6_iface(ha); 1211 } 1212 break; 1213 case ISCSI_NET_PARAM_VLAN_TAG: 1214 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 1215 break; 1216 init_fw_cb->ipv6_vlan_tag = 1217 cpu_to_be16(*(uint16_t *)iface_param->value); 1218 break; 1219 case ISCSI_NET_PARAM_VLAN_ENABLED: 1220 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 1221 init_fw_cb->ipv6_opts |= 1222 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 1223 else 1224 init_fw_cb->ipv6_opts &= 1225 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 1226 break; 1227 case ISCSI_NET_PARAM_MTU: 1228 init_fw_cb->eth_mtu_size = 1229 cpu_to_le16(*(uint16_t *)iface_param->value); 1230 break; 1231 case ISCSI_NET_PARAM_PORT: 1232 /* Autocfg applies to even interface */ 1233 if (iface_param->iface_num & 0x1) 1234 break; 1235 1236 init_fw_cb->ipv6_port = 1237 cpu_to_le16(*(uint16_t *)iface_param->value); 1238 break; 1239 default: 1240 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 1241 iface_param->param); 1242 break; 1243 } 1244 } 1245 1246 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 1247 struct iscsi_iface_param_info *iface_param, 1248 struct addr_ctrl_blk *init_fw_cb) 1249 { 1250 switch (iface_param->param) { 1251 case ISCSI_NET_PARAM_IPV4_ADDR: 1252 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 1253 sizeof(init_fw_cb->ipv4_addr)); 1254 break; 1255 case ISCSI_NET_PARAM_IPV4_SUBNET: 1256 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 1257 sizeof(init_fw_cb->ipv4_subnet)); 1258 break; 1259 case ISCSI_NET_PARAM_IPV4_GW: 1260 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 1261 sizeof(init_fw_cb->ipv4_gw_addr)); 1262 break; 1263 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1264 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 1265 init_fw_cb->ipv4_tcp_opts |= 1266 cpu_to_le16(TCPOPT_DHCP_ENABLE); 1267 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 1268 init_fw_cb->ipv4_tcp_opts &= 1269 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 1270 else 1271 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 1272 break; 1273 case ISCSI_NET_PARAM_IFACE_ENABLE: 1274 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 1275 init_fw_cb->ipv4_ip_opts |= 1276 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 1277 qla4xxx_create_ipv4_iface(ha); 1278 } else { 1279 init_fw_cb->ipv4_ip_opts &= 1280 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 1281 0xFFFF); 1282 qla4xxx_destroy_ipv4_iface(ha); 1283 } 1284 break; 1285 case ISCSI_NET_PARAM_VLAN_TAG: 1286 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 1287 break; 1288 init_fw_cb->ipv4_vlan_tag = 1289 cpu_to_be16(*(uint16_t *)iface_param->value); 1290 break; 1291 case ISCSI_NET_PARAM_VLAN_ENABLED: 1292 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 1293 init_fw_cb->ipv4_ip_opts |= 1294 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 1295 else 1296 init_fw_cb->ipv4_ip_opts &= 1297 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 1298 break; 1299 case ISCSI_NET_PARAM_MTU: 1300 init_fw_cb->eth_mtu_size = 1301 cpu_to_le16(*(uint16_t *)iface_param->value); 1302 break; 1303 case ISCSI_NET_PARAM_PORT: 1304 init_fw_cb->ipv4_port = 1305 cpu_to_le16(*(uint16_t *)iface_param->value); 1306 break; 1307 default: 1308 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 1309 iface_param->param); 1310 break; 1311 } 1312 } 1313 1314 static void 1315 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 1316 { 1317 struct addr_ctrl_blk_def *acb; 1318 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 1319 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 1320 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 1321 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 1322 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 1323 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 1324 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 1325 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 1326 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 1327 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 1328 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 1329 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 1330 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 1331 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 1332 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 1333 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 1334 } 1335 1336 static int 1337 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 1338 { 1339 struct scsi_qla_host *ha = to_qla_host(shost); 1340 int rval = 0; 1341 struct iscsi_iface_param_info *iface_param = NULL; 1342 struct addr_ctrl_blk *init_fw_cb = NULL; 1343 dma_addr_t init_fw_cb_dma; 1344 uint32_t mbox_cmd[MBOX_REG_COUNT]; 1345 uint32_t mbox_sts[MBOX_REG_COUNT]; 1346 uint32_t rem = len; 1347 struct nlattr *attr; 1348 1349 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 1350 sizeof(struct addr_ctrl_blk), 1351 &init_fw_cb_dma, GFP_KERNEL); 1352 if (!init_fw_cb) { 1353 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 1354 __func__); 1355 return -ENOMEM; 1356 } 1357 1358 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 1359 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 1360 memset(&mbox_sts, 0, sizeof(mbox_sts)); 1361 1362 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 1363 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 1364 rval = -EIO; 1365 goto exit_init_fw_cb; 1366 } 1367 1368 nla_for_each_attr(attr, data, len, rem) { 1369 iface_param = nla_data(attr); 1370 1371 if (iface_param->param_type != ISCSI_NET_PARAM) 1372 continue; 1373 1374 switch (iface_param->iface_type) { 1375 case ISCSI_IFACE_TYPE_IPV4: 1376 switch (iface_param->iface_num) { 1377 case 0: 1378 qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 1379 break; 1380 default: 1381 /* Cannot have more than one IPv4 interface */ 1382 ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 1383 "number = %d\n", 1384 iface_param->iface_num); 1385 break; 1386 } 1387 break; 1388 case ISCSI_IFACE_TYPE_IPV6: 1389 switch (iface_param->iface_num) { 1390 case 0: 1391 case 1: 1392 qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 1393 break; 1394 default: 1395 /* Cannot have more than two IPv6 interface */ 1396 ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 1397 "number = %d\n", 1398 iface_param->iface_num); 1399 break; 1400 } 1401 break; 1402 default: 1403 ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 1404 break; 1405 } 1406 } 1407 1408 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 1409 1410 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 1411 sizeof(struct addr_ctrl_blk), 1412 FLASH_OPT_RMW_COMMIT); 1413 if (rval != QLA_SUCCESS) { 1414 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 1415 __func__); 1416 rval = -EIO; 1417 goto exit_init_fw_cb; 1418 } 1419 1420 rval = qla4xxx_disable_acb(ha); 1421 if (rval != QLA_SUCCESS) { 1422 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 1423 __func__); 1424 rval = -EIO; 1425 goto exit_init_fw_cb; 1426 } 1427 1428 wait_for_completion_timeout(&ha->disable_acb_comp, 1429 DISABLE_ACB_TOV * HZ); 1430 1431 qla4xxx_initcb_to_acb(init_fw_cb); 1432 1433 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 1434 if (rval != QLA_SUCCESS) { 1435 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 1436 __func__); 1437 rval = -EIO; 1438 goto exit_init_fw_cb; 1439 } 1440 1441 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 1442 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 1443 init_fw_cb_dma); 1444 1445 exit_init_fw_cb: 1446 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 1447 init_fw_cb, init_fw_cb_dma); 1448 1449 return rval; 1450 } 1451 1452 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 1453 enum iscsi_param param, char *buf) 1454 { 1455 struct iscsi_session *sess = cls_sess->dd_data; 1456 struct ddb_entry *ddb_entry = sess->dd_data; 1457 struct scsi_qla_host *ha = ddb_entry->ha; 1458 int rval, len; 1459 uint16_t idx; 1460 1461 switch (param) { 1462 case ISCSI_PARAM_CHAP_IN_IDX: 1463 rval = qla4xxx_get_chap_index(ha, sess->username_in, 1464 sess->password_in, BIDI_CHAP, 1465 &idx); 1466 if (rval) 1467 len = sprintf(buf, "\n"); 1468 else 1469 len = sprintf(buf, "%hu\n", idx); 1470 break; 1471 case ISCSI_PARAM_CHAP_OUT_IDX: 1472 rval = qla4xxx_get_chap_index(ha, sess->username, 1473 sess->password, LOCAL_CHAP, 1474 &idx); 1475 if (rval) 1476 len = sprintf(buf, "\n"); 1477 else 1478 len = sprintf(buf, "%hu\n", idx); 1479 break; 1480 default: 1481 return iscsi_session_get_param(cls_sess, param, buf); 1482 } 1483 1484 return len; 1485 } 1486 1487 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 1488 enum iscsi_param param, char *buf) 1489 { 1490 struct iscsi_conn *conn; 1491 struct qla_conn *qla_conn; 1492 struct sockaddr *dst_addr; 1493 int len = 0; 1494 1495 conn = cls_conn->dd_data; 1496 qla_conn = conn->dd_data; 1497 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 1498 1499 switch (param) { 1500 case ISCSI_PARAM_CONN_PORT: 1501 case ISCSI_PARAM_CONN_ADDRESS: 1502 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1503 dst_addr, param, buf); 1504 default: 1505 return iscsi_conn_get_param(cls_conn, param, buf); 1506 } 1507 1508 return len; 1509 1510 } 1511 1512 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 1513 { 1514 uint32_t mbx_sts = 0; 1515 uint16_t tmp_ddb_index; 1516 int ret; 1517 1518 get_ddb_index: 1519 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 1520 1521 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 1522 DEBUG2(ql4_printk(KERN_INFO, ha, 1523 "Free DDB index not available\n")); 1524 ret = QLA_ERROR; 1525 goto exit_get_ddb_index; 1526 } 1527 1528 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 1529 goto get_ddb_index; 1530 1531 DEBUG2(ql4_printk(KERN_INFO, ha, 1532 "Found a free DDB index at %d\n", tmp_ddb_index)); 1533 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 1534 if (ret == QLA_ERROR) { 1535 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 1536 ql4_printk(KERN_INFO, ha, 1537 "DDB index = %d not available trying next\n", 1538 tmp_ddb_index); 1539 goto get_ddb_index; 1540 } 1541 DEBUG2(ql4_printk(KERN_INFO, ha, 1542 "Free FW DDB not available\n")); 1543 } 1544 1545 *ddb_index = tmp_ddb_index; 1546 1547 exit_get_ddb_index: 1548 return ret; 1549 } 1550 1551 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 1552 struct ddb_entry *ddb_entry, 1553 char *existing_ipaddr, 1554 char *user_ipaddr) 1555 { 1556 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 1557 char formatted_ipaddr[DDB_IPADDR_LEN]; 1558 int status = QLA_SUCCESS, ret = 0; 1559 1560 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 1561 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 1562 '\0', NULL); 1563 if (ret == 0) { 1564 status = QLA_ERROR; 1565 goto out_match; 1566 } 1567 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 1568 } else { 1569 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 1570 '\0', NULL); 1571 if (ret == 0) { 1572 status = QLA_ERROR; 1573 goto out_match; 1574 } 1575 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 1576 } 1577 1578 if (strcmp(existing_ipaddr, formatted_ipaddr)) 1579 status = QLA_ERROR; 1580 1581 out_match: 1582 return status; 1583 } 1584 1585 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 1586 struct iscsi_cls_conn *cls_conn) 1587 { 1588 int idx = 0, max_ddbs, rval; 1589 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1590 struct iscsi_session *sess, *existing_sess; 1591 struct iscsi_conn *conn, *existing_conn; 1592 struct ddb_entry *ddb_entry; 1593 1594 sess = cls_sess->dd_data; 1595 conn = cls_conn->dd_data; 1596 1597 if (sess->targetname == NULL || 1598 conn->persistent_address == NULL || 1599 conn->persistent_port == 0) 1600 return QLA_ERROR; 1601 1602 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 1603 MAX_DEV_DB_ENTRIES; 1604 1605 for (idx = 0; idx < max_ddbs; idx++) { 1606 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 1607 if (ddb_entry == NULL) 1608 continue; 1609 1610 if (ddb_entry->ddb_type != FLASH_DDB) 1611 continue; 1612 1613 existing_sess = ddb_entry->sess->dd_data; 1614 existing_conn = ddb_entry->conn->dd_data; 1615 1616 if (existing_sess->targetname == NULL || 1617 existing_conn->persistent_address == NULL || 1618 existing_conn->persistent_port == 0) 1619 continue; 1620 1621 DEBUG2(ql4_printk(KERN_INFO, ha, 1622 "IQN = %s User IQN = %s\n", 1623 existing_sess->targetname, 1624 sess->targetname)); 1625 1626 DEBUG2(ql4_printk(KERN_INFO, ha, 1627 "IP = %s User IP = %s\n", 1628 existing_conn->persistent_address, 1629 conn->persistent_address)); 1630 1631 DEBUG2(ql4_printk(KERN_INFO, ha, 1632 "Port = %d User Port = %d\n", 1633 existing_conn->persistent_port, 1634 conn->persistent_port)); 1635 1636 if (strcmp(existing_sess->targetname, sess->targetname)) 1637 continue; 1638 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 1639 existing_conn->persistent_address, 1640 conn->persistent_address); 1641 if (rval == QLA_ERROR) 1642 continue; 1643 if (existing_conn->persistent_port != conn->persistent_port) 1644 continue; 1645 break; 1646 } 1647 1648 if (idx == max_ddbs) 1649 return QLA_ERROR; 1650 1651 DEBUG2(ql4_printk(KERN_INFO, ha, 1652 "Match found in fwdb sessions\n")); 1653 return QLA_SUCCESS; 1654 } 1655 1656 static struct iscsi_cls_session * 1657 qla4xxx_session_create(struct iscsi_endpoint *ep, 1658 uint16_t cmds_max, uint16_t qdepth, 1659 uint32_t initial_cmdsn) 1660 { 1661 struct iscsi_cls_session *cls_sess; 1662 struct scsi_qla_host *ha; 1663 struct qla_endpoint *qla_ep; 1664 struct ddb_entry *ddb_entry; 1665 uint16_t ddb_index; 1666 struct iscsi_session *sess; 1667 struct sockaddr *dst_addr; 1668 int ret; 1669 1670 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1671 if (!ep) { 1672 printk(KERN_ERR "qla4xxx: missing ep.\n"); 1673 return NULL; 1674 } 1675 1676 qla_ep = ep->dd_data; 1677 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1678 ha = to_qla_host(qla_ep->host); 1679 1680 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 1681 if (ret == QLA_ERROR) 1682 return NULL; 1683 1684 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 1685 cmds_max, sizeof(struct ddb_entry), 1686 sizeof(struct ql4_task_data), 1687 initial_cmdsn, ddb_index); 1688 if (!cls_sess) 1689 return NULL; 1690 1691 sess = cls_sess->dd_data; 1692 ddb_entry = sess->dd_data; 1693 ddb_entry->fw_ddb_index = ddb_index; 1694 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 1695 ddb_entry->ha = ha; 1696 ddb_entry->sess = cls_sess; 1697 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 1698 ddb_entry->ddb_change = qla4xxx_ddb_change; 1699 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 1700 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1701 ha->tot_ddbs++; 1702 1703 return cls_sess; 1704 } 1705 1706 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 1707 { 1708 struct iscsi_session *sess; 1709 struct ddb_entry *ddb_entry; 1710 struct scsi_qla_host *ha; 1711 unsigned long flags, wtime; 1712 struct dev_db_entry *fw_ddb_entry = NULL; 1713 dma_addr_t fw_ddb_entry_dma; 1714 uint32_t ddb_state; 1715 int ret; 1716 1717 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1718 sess = cls_sess->dd_data; 1719 ddb_entry = sess->dd_data; 1720 ha = ddb_entry->ha; 1721 1722 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1723 &fw_ddb_entry_dma, GFP_KERNEL); 1724 if (!fw_ddb_entry) { 1725 ql4_printk(KERN_ERR, ha, 1726 "%s: Unable to allocate dma buffer\n", __func__); 1727 goto destroy_session; 1728 } 1729 1730 wtime = jiffies + (HZ * LOGOUT_TOV); 1731 do { 1732 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 1733 fw_ddb_entry, fw_ddb_entry_dma, 1734 NULL, NULL, &ddb_state, NULL, 1735 NULL, NULL); 1736 if (ret == QLA_ERROR) 1737 goto destroy_session; 1738 1739 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 1740 (ddb_state == DDB_DS_SESSION_FAILED)) 1741 goto destroy_session; 1742 1743 schedule_timeout_uninterruptible(HZ); 1744 } while ((time_after(wtime, jiffies))); 1745 1746 destroy_session: 1747 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 1748 1749 spin_lock_irqsave(&ha->hardware_lock, flags); 1750 qla4xxx_free_ddb(ha, ddb_entry); 1751 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1752 1753 iscsi_session_teardown(cls_sess); 1754 1755 if (fw_ddb_entry) 1756 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1757 fw_ddb_entry, fw_ddb_entry_dma); 1758 } 1759 1760 static struct iscsi_cls_conn * 1761 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 1762 { 1763 struct iscsi_cls_conn *cls_conn; 1764 struct iscsi_session *sess; 1765 struct ddb_entry *ddb_entry; 1766 1767 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1768 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 1769 conn_idx); 1770 if (!cls_conn) 1771 return NULL; 1772 1773 sess = cls_sess->dd_data; 1774 ddb_entry = sess->dd_data; 1775 ddb_entry->conn = cls_conn; 1776 1777 return cls_conn; 1778 } 1779 1780 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 1781 struct iscsi_cls_conn *cls_conn, 1782 uint64_t transport_fd, int is_leading) 1783 { 1784 struct iscsi_conn *conn; 1785 struct qla_conn *qla_conn; 1786 struct iscsi_endpoint *ep; 1787 1788 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1789 1790 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 1791 return -EINVAL; 1792 ep = iscsi_lookup_endpoint(transport_fd); 1793 conn = cls_conn->dd_data; 1794 qla_conn = conn->dd_data; 1795 qla_conn->qla_ep = ep->dd_data; 1796 return 0; 1797 } 1798 1799 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 1800 { 1801 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1802 struct iscsi_session *sess; 1803 struct ddb_entry *ddb_entry; 1804 struct scsi_qla_host *ha; 1805 struct dev_db_entry *fw_ddb_entry = NULL; 1806 dma_addr_t fw_ddb_entry_dma; 1807 uint32_t mbx_sts = 0; 1808 int ret = 0; 1809 int status = QLA_SUCCESS; 1810 1811 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1812 sess = cls_sess->dd_data; 1813 ddb_entry = sess->dd_data; 1814 ha = ddb_entry->ha; 1815 1816 /* Check if we have matching FW DDB, if yes then do not 1817 * login to this target. This could cause target to logout previous 1818 * connection 1819 */ 1820 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 1821 if (ret == QLA_SUCCESS) { 1822 ql4_printk(KERN_INFO, ha, 1823 "Session already exist in FW.\n"); 1824 ret = -EEXIST; 1825 goto exit_conn_start; 1826 } 1827 1828 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1829 &fw_ddb_entry_dma, GFP_KERNEL); 1830 if (!fw_ddb_entry) { 1831 ql4_printk(KERN_ERR, ha, 1832 "%s: Unable to allocate dma buffer\n", __func__); 1833 ret = -ENOMEM; 1834 goto exit_conn_start; 1835 } 1836 1837 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 1838 if (ret) { 1839 /* If iscsid is stopped and started then no need to do 1840 * set param again since ddb state will be already 1841 * active and FW does not allow set ddb to an 1842 * active session. 1843 */ 1844 if (mbx_sts) 1845 if (ddb_entry->fw_ddb_device_state == 1846 DDB_DS_SESSION_ACTIVE) { 1847 ddb_entry->unblock_sess(ddb_entry->sess); 1848 goto exit_set_param; 1849 } 1850 1851 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 1852 __func__, ddb_entry->fw_ddb_index); 1853 goto exit_conn_start; 1854 } 1855 1856 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1857 if (status == QLA_ERROR) { 1858 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 1859 sess->targetname); 1860 ret = -EINVAL; 1861 goto exit_conn_start; 1862 } 1863 1864 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 1865 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1866 1867 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 1868 ddb_entry->fw_ddb_device_state)); 1869 1870 exit_set_param: 1871 ret = 0; 1872 1873 exit_conn_start: 1874 if (fw_ddb_entry) 1875 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1876 fw_ddb_entry, fw_ddb_entry_dma); 1877 return ret; 1878 } 1879 1880 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 1881 { 1882 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1883 struct iscsi_session *sess; 1884 struct scsi_qla_host *ha; 1885 struct ddb_entry *ddb_entry; 1886 int options; 1887 1888 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1889 sess = cls_sess->dd_data; 1890 ddb_entry = sess->dd_data; 1891 ha = ddb_entry->ha; 1892 1893 options = LOGOUT_OPTION_CLOSE_SESSION; 1894 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 1895 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 1896 } 1897 1898 static void qla4xxx_task_work(struct work_struct *wdata) 1899 { 1900 struct ql4_task_data *task_data; 1901 struct scsi_qla_host *ha; 1902 struct passthru_status *sts; 1903 struct iscsi_task *task; 1904 struct iscsi_hdr *hdr; 1905 uint8_t *data; 1906 uint32_t data_len; 1907 struct iscsi_conn *conn; 1908 int hdr_len; 1909 itt_t itt; 1910 1911 task_data = container_of(wdata, struct ql4_task_data, task_work); 1912 ha = task_data->ha; 1913 task = task_data->task; 1914 sts = &task_data->sts; 1915 hdr_len = sizeof(struct iscsi_hdr); 1916 1917 DEBUG3(printk(KERN_INFO "Status returned\n")); 1918 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 1919 DEBUG3(printk(KERN_INFO "Response buffer")); 1920 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 1921 1922 conn = task->conn; 1923 1924 switch (sts->completionStatus) { 1925 case PASSTHRU_STATUS_COMPLETE: 1926 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 1927 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 1928 itt = sts->handle; 1929 hdr->itt = itt; 1930 data = task_data->resp_buffer + hdr_len; 1931 data_len = task_data->resp_len - hdr_len; 1932 iscsi_complete_pdu(conn, hdr, data, data_len); 1933 break; 1934 default: 1935 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 1936 sts->completionStatus); 1937 break; 1938 } 1939 return; 1940 } 1941 1942 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 1943 { 1944 struct ql4_task_data *task_data; 1945 struct iscsi_session *sess; 1946 struct ddb_entry *ddb_entry; 1947 struct scsi_qla_host *ha; 1948 int hdr_len; 1949 1950 sess = task->conn->session; 1951 ddb_entry = sess->dd_data; 1952 ha = ddb_entry->ha; 1953 task_data = task->dd_data; 1954 memset(task_data, 0, sizeof(struct ql4_task_data)); 1955 1956 if (task->sc) { 1957 ql4_printk(KERN_INFO, ha, 1958 "%s: SCSI Commands not implemented\n", __func__); 1959 return -EINVAL; 1960 } 1961 1962 hdr_len = sizeof(struct iscsi_hdr); 1963 task_data->ha = ha; 1964 task_data->task = task; 1965 1966 if (task->data_count) { 1967 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 1968 task->data_count, 1969 PCI_DMA_TODEVICE); 1970 } 1971 1972 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1973 __func__, task->conn->max_recv_dlength, hdr_len)); 1974 1975 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 1976 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 1977 task_data->resp_len, 1978 &task_data->resp_dma, 1979 GFP_ATOMIC); 1980 if (!task_data->resp_buffer) 1981 goto exit_alloc_pdu; 1982 1983 task_data->req_len = task->data_count + hdr_len; 1984 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 1985 task_data->req_len, 1986 &task_data->req_dma, 1987 GFP_ATOMIC); 1988 if (!task_data->req_buffer) 1989 goto exit_alloc_pdu; 1990 1991 task->hdr = task_data->req_buffer; 1992 1993 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 1994 1995 return 0; 1996 1997 exit_alloc_pdu: 1998 if (task_data->resp_buffer) 1999 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 2000 task_data->resp_buffer, task_data->resp_dma); 2001 2002 if (task_data->req_buffer) 2003 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 2004 task_data->req_buffer, task_data->req_dma); 2005 return -ENOMEM; 2006 } 2007 2008 static void qla4xxx_task_cleanup(struct iscsi_task *task) 2009 { 2010 struct ql4_task_data *task_data; 2011 struct iscsi_session *sess; 2012 struct ddb_entry *ddb_entry; 2013 struct scsi_qla_host *ha; 2014 int hdr_len; 2015 2016 hdr_len = sizeof(struct iscsi_hdr); 2017 sess = task->conn->session; 2018 ddb_entry = sess->dd_data; 2019 ha = ddb_entry->ha; 2020 task_data = task->dd_data; 2021 2022 if (task->data_count) { 2023 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 2024 task->data_count, PCI_DMA_TODEVICE); 2025 } 2026 2027 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 2028 __func__, task->conn->max_recv_dlength, hdr_len)); 2029 2030 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 2031 task_data->resp_buffer, task_data->resp_dma); 2032 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 2033 task_data->req_buffer, task_data->req_dma); 2034 return; 2035 } 2036 2037 static int qla4xxx_task_xmit(struct iscsi_task *task) 2038 { 2039 struct scsi_cmnd *sc = task->sc; 2040 struct iscsi_session *sess = task->conn->session; 2041 struct ddb_entry *ddb_entry = sess->dd_data; 2042 struct scsi_qla_host *ha = ddb_entry->ha; 2043 2044 if (!sc) 2045 return qla4xxx_send_passthru0(task); 2046 2047 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 2048 __func__); 2049 return -ENOSYS; 2050 } 2051 2052 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 2053 struct iscsi_bus_flash_conn *conn, 2054 struct dev_db_entry *fw_ddb_entry) 2055 { 2056 unsigned long options = 0; 2057 int rc = 0; 2058 2059 options = le16_to_cpu(fw_ddb_entry->options); 2060 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 2061 if (test_bit(OPT_IPV6_DEVICE, &options)) { 2062 rc = iscsi_switch_str_param(&sess->portal_type, 2063 PORTAL_TYPE_IPV6); 2064 if (rc) 2065 goto exit_copy; 2066 } else { 2067 rc = iscsi_switch_str_param(&sess->portal_type, 2068 PORTAL_TYPE_IPV4); 2069 if (rc) 2070 goto exit_copy; 2071 } 2072 2073 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 2074 &options); 2075 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 2076 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 2077 2078 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 2079 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 2080 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 2081 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 2082 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 2083 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 2084 &options); 2085 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 2086 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 2087 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 2088 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 2089 &options); 2090 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 2091 sess->discovery_auth_optional = 2092 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 2093 if (test_bit(ISCSIOPT_ERL1, &options)) 2094 sess->erl |= BIT_1; 2095 if (test_bit(ISCSIOPT_ERL0, &options)) 2096 sess->erl |= BIT_0; 2097 2098 options = le16_to_cpu(fw_ddb_entry->tcp_options); 2099 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 2100 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 2101 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 2102 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 2103 conn->tcp_timer_scale |= BIT_3; 2104 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 2105 conn->tcp_timer_scale |= BIT_2; 2106 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 2107 conn->tcp_timer_scale |= BIT_1; 2108 2109 conn->tcp_timer_scale >>= 1; 2110 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 2111 2112 options = le16_to_cpu(fw_ddb_entry->ip_options); 2113 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 2114 2115 conn->max_recv_dlength = BYTE_UNITS * 2116 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 2117 conn->max_xmit_dlength = BYTE_UNITS * 2118 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 2119 sess->first_burst = BYTE_UNITS * 2120 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 2121 sess->max_burst = BYTE_UNITS * 2122 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 2123 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 2124 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 2125 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 2126 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 2127 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 2128 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 2129 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 2130 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 2131 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 2132 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 2133 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 2134 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 2135 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 2136 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 2137 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 2138 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 2139 2140 sess->default_taskmgmt_timeout = 2141 le16_to_cpu(fw_ddb_entry->def_timeout); 2142 conn->port = le16_to_cpu(fw_ddb_entry->port); 2143 2144 options = le16_to_cpu(fw_ddb_entry->options); 2145 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 2146 if (!conn->ipaddress) { 2147 rc = -ENOMEM; 2148 goto exit_copy; 2149 } 2150 2151 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 2152 if (!conn->redirect_ipaddr) { 2153 rc = -ENOMEM; 2154 goto exit_copy; 2155 } 2156 2157 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 2158 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 2159 2160 if (test_bit(OPT_IPV6_DEVICE, &options)) { 2161 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 2162 2163 conn->link_local_ipv6_addr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 2164 if (!conn->link_local_ipv6_addr) { 2165 rc = -ENOMEM; 2166 goto exit_copy; 2167 } 2168 2169 memcpy(conn->link_local_ipv6_addr, 2170 fw_ddb_entry->link_local_ipv6_addr, IPv6_ADDR_LEN); 2171 } else { 2172 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 2173 } 2174 2175 if (fw_ddb_entry->iscsi_name[0]) { 2176 rc = iscsi_switch_str_param(&sess->targetname, 2177 (char *)fw_ddb_entry->iscsi_name); 2178 if (rc) 2179 goto exit_copy; 2180 } 2181 2182 if (fw_ddb_entry->iscsi_alias[0]) { 2183 rc = iscsi_switch_str_param(&sess->targetalias, 2184 (char *)fw_ddb_entry->iscsi_alias); 2185 if (rc) 2186 goto exit_copy; 2187 } 2188 2189 COPY_ISID(sess->isid, fw_ddb_entry->isid); 2190 2191 exit_copy: 2192 return rc; 2193 } 2194 2195 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 2196 struct iscsi_bus_flash_conn *conn, 2197 struct dev_db_entry *fw_ddb_entry) 2198 { 2199 uint16_t options; 2200 int rc = 0; 2201 2202 options = le16_to_cpu(fw_ddb_entry->options); 2203 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 2204 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 2205 options |= BIT_8; 2206 else 2207 options &= ~BIT_8; 2208 2209 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 2210 SET_BITVAL(sess->discovery_sess, options, BIT_4); 2211 SET_BITVAL(sess->entry_state, options, BIT_3); 2212 fw_ddb_entry->options = cpu_to_le16(options); 2213 2214 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 2215 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 2216 SET_BITVAL(conn->datadgst_en, options, BIT_12); 2217 SET_BITVAL(sess->imm_data_en, options, BIT_11); 2218 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 2219 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 2220 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 2221 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 2222 SET_BITVAL(conn->snack_req_en, options, BIT_6); 2223 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 2224 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 2225 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 2226 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 2227 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 2228 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 2229 2230 options = le16_to_cpu(fw_ddb_entry->tcp_options); 2231 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 2232 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 2233 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 2234 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 2235 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 2236 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 2237 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 2238 fw_ddb_entry->tcp_options = cpu_to_le16(options); 2239 2240 options = le16_to_cpu(fw_ddb_entry->ip_options); 2241 SET_BITVAL(conn->fragment_disable, options, BIT_4); 2242 fw_ddb_entry->ip_options = cpu_to_le16(options); 2243 2244 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 2245 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 2246 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 2247 fw_ddb_entry->iscsi_max_snd_data_seg_len = 2248 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 2249 fw_ddb_entry->iscsi_first_burst_len = 2250 cpu_to_le16(sess->first_burst / BYTE_UNITS); 2251 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 2252 BYTE_UNITS); 2253 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 2254 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 2255 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 2256 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 2257 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 2258 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 2259 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 2260 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 2261 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 2262 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 2263 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 2264 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 2265 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 2266 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 2267 fw_ddb_entry->port = cpu_to_le16(conn->port); 2268 fw_ddb_entry->def_timeout = 2269 cpu_to_le16(sess->default_taskmgmt_timeout); 2270 2271 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 2272 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 2273 else 2274 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 2275 2276 if (conn->ipaddress) 2277 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 2278 sizeof(fw_ddb_entry->ip_addr)); 2279 2280 if (conn->redirect_ipaddr) 2281 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 2282 sizeof(fw_ddb_entry->tgt_addr)); 2283 2284 if (conn->link_local_ipv6_addr) 2285 memcpy(fw_ddb_entry->link_local_ipv6_addr, 2286 conn->link_local_ipv6_addr, 2287 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 2288 2289 if (sess->targetname) 2290 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 2291 sizeof(fw_ddb_entry->iscsi_name)); 2292 2293 if (sess->targetalias) 2294 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 2295 sizeof(fw_ddb_entry->iscsi_alias)); 2296 2297 COPY_ISID(fw_ddb_entry->isid, sess->isid); 2298 2299 return rc; 2300 } 2301 2302 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 2303 struct iscsi_session *sess, 2304 struct dev_db_entry *fw_ddb_entry) 2305 { 2306 unsigned long options = 0; 2307 uint16_t ddb_link; 2308 uint16_t disc_parent; 2309 2310 options = le16_to_cpu(fw_ddb_entry->options); 2311 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 2312 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 2313 &options); 2314 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 2315 2316 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 2317 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 2318 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 2319 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 2320 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 2321 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 2322 &options); 2323 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 2324 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 2325 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 2326 &options); 2327 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 2328 sess->discovery_auth_optional = 2329 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 2330 if (test_bit(ISCSIOPT_ERL1, &options)) 2331 sess->erl |= BIT_1; 2332 if (test_bit(ISCSIOPT_ERL0, &options)) 2333 sess->erl |= BIT_0; 2334 2335 options = le16_to_cpu(fw_ddb_entry->tcp_options); 2336 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 2337 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 2338 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 2339 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 2340 conn->tcp_timer_scale |= BIT_3; 2341 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 2342 conn->tcp_timer_scale |= BIT_2; 2343 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 2344 conn->tcp_timer_scale |= BIT_1; 2345 2346 conn->tcp_timer_scale >>= 1; 2347 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 2348 2349 options = le16_to_cpu(fw_ddb_entry->ip_options); 2350 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 2351 2352 conn->max_recv_dlength = BYTE_UNITS * 2353 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 2354 conn->max_xmit_dlength = BYTE_UNITS * 2355 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 2356 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 2357 sess->first_burst = BYTE_UNITS * 2358 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 2359 sess->max_burst = BYTE_UNITS * 2360 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 2361 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 2362 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 2363 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 2364 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 2365 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 2366 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 2367 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 2368 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 2369 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 2370 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 2371 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 2372 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 2373 COPY_ISID(sess->isid, fw_ddb_entry->isid); 2374 2375 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 2376 if (ddb_link < MAX_DDB_ENTRIES) 2377 sess->discovery_parent_idx = ddb_link; 2378 else 2379 sess->discovery_parent_idx = DDB_NO_LINK; 2380 2381 if (ddb_link == DDB_ISNS) 2382 disc_parent = ISCSI_DISC_PARENT_ISNS; 2383 else if (ddb_link == DDB_NO_LINK) 2384 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 2385 else if (ddb_link < MAX_DDB_ENTRIES) 2386 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 2387 else 2388 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 2389 2390 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 2391 iscsi_get_discovery_parent_name(disc_parent), 0); 2392 2393 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 2394 (char *)fw_ddb_entry->iscsi_alias, 0); 2395 } 2396 2397 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 2398 struct dev_db_entry *fw_ddb_entry, 2399 struct iscsi_cls_session *cls_sess, 2400 struct iscsi_cls_conn *cls_conn) 2401 { 2402 int buflen = 0; 2403 struct iscsi_session *sess; 2404 struct ddb_entry *ddb_entry; 2405 struct iscsi_conn *conn; 2406 char ip_addr[DDB_IPADDR_LEN]; 2407 uint16_t options = 0; 2408 2409 sess = cls_sess->dd_data; 2410 ddb_entry = sess->dd_data; 2411 conn = cls_conn->dd_data; 2412 2413 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 2414 2415 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 2416 2417 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 2418 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 2419 2420 memset(ip_addr, 0, sizeof(ip_addr)); 2421 options = le16_to_cpu(fw_ddb_entry->options); 2422 if (options & DDB_OPT_IPV6_DEVICE) { 2423 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 2424 2425 memset(ip_addr, 0, sizeof(ip_addr)); 2426 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 2427 } else { 2428 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 2429 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 2430 } 2431 2432 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 2433 (char *)ip_addr, buflen); 2434 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 2435 (char *)fw_ddb_entry->iscsi_name, buflen); 2436 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 2437 (char *)ha->name_string, buflen); 2438 } 2439 2440 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 2441 struct ddb_entry *ddb_entry) 2442 { 2443 struct iscsi_cls_session *cls_sess; 2444 struct iscsi_cls_conn *cls_conn; 2445 uint32_t ddb_state; 2446 dma_addr_t fw_ddb_entry_dma; 2447 struct dev_db_entry *fw_ddb_entry; 2448 2449 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 2450 &fw_ddb_entry_dma, GFP_KERNEL); 2451 if (!fw_ddb_entry) { 2452 ql4_printk(KERN_ERR, ha, 2453 "%s: Unable to allocate dma buffer\n", __func__); 2454 goto exit_session_conn_fwddb_param; 2455 } 2456 2457 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 2458 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 2459 NULL, NULL, NULL) == QLA_ERROR) { 2460 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 2461 "get_ddb_entry for fw_ddb_index %d\n", 2462 ha->host_no, __func__, 2463 ddb_entry->fw_ddb_index)); 2464 goto exit_session_conn_fwddb_param; 2465 } 2466 2467 cls_sess = ddb_entry->sess; 2468 2469 cls_conn = ddb_entry->conn; 2470 2471 /* Update params */ 2472 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 2473 2474 exit_session_conn_fwddb_param: 2475 if (fw_ddb_entry) 2476 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 2477 fw_ddb_entry, fw_ddb_entry_dma); 2478 } 2479 2480 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 2481 struct ddb_entry *ddb_entry) 2482 { 2483 struct iscsi_cls_session *cls_sess; 2484 struct iscsi_cls_conn *cls_conn; 2485 struct iscsi_session *sess; 2486 struct iscsi_conn *conn; 2487 uint32_t ddb_state; 2488 dma_addr_t fw_ddb_entry_dma; 2489 struct dev_db_entry *fw_ddb_entry; 2490 2491 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 2492 &fw_ddb_entry_dma, GFP_KERNEL); 2493 if (!fw_ddb_entry) { 2494 ql4_printk(KERN_ERR, ha, 2495 "%s: Unable to allocate dma buffer\n", __func__); 2496 goto exit_session_conn_param; 2497 } 2498 2499 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 2500 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 2501 NULL, NULL, NULL) == QLA_ERROR) { 2502 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 2503 "get_ddb_entry for fw_ddb_index %d\n", 2504 ha->host_no, __func__, 2505 ddb_entry->fw_ddb_index)); 2506 goto exit_session_conn_param; 2507 } 2508 2509 cls_sess = ddb_entry->sess; 2510 sess = cls_sess->dd_data; 2511 2512 cls_conn = ddb_entry->conn; 2513 conn = cls_conn->dd_data; 2514 2515 /* Update timers after login */ 2516 ddb_entry->default_relogin_timeout = 2517 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 2518 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 2519 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 2520 ddb_entry->default_time2wait = 2521 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 2522 2523 /* Update params */ 2524 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 2525 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 2526 2527 memcpy(sess->initiatorname, ha->name_string, 2528 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 2529 2530 exit_session_conn_param: 2531 if (fw_ddb_entry) 2532 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 2533 fw_ddb_entry, fw_ddb_entry_dma); 2534 } 2535 2536 /* 2537 * Timer routines 2538 */ 2539 2540 static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 2541 unsigned long interval) 2542 { 2543 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 2544 __func__, ha->host->host_no)); 2545 init_timer(&ha->timer); 2546 ha->timer.expires = jiffies + interval * HZ; 2547 ha->timer.data = (unsigned long)ha; 2548 ha->timer.function = (void (*)(unsigned long))func; 2549 add_timer(&ha->timer); 2550 ha->timer_active = 1; 2551 } 2552 2553 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 2554 { 2555 del_timer_sync(&ha->timer); 2556 ha->timer_active = 0; 2557 } 2558 2559 /*** 2560 * qla4xxx_mark_device_missing - blocks the session 2561 * @cls_session: Pointer to the session to be blocked 2562 * @ddb_entry: Pointer to device database entry 2563 * 2564 * This routine marks a device missing and close connection. 2565 **/ 2566 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 2567 { 2568 iscsi_block_session(cls_session); 2569 } 2570 2571 /** 2572 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 2573 * @ha: Pointer to host adapter structure. 2574 * 2575 * This routine marks a device missing and resets the relogin retry count. 2576 **/ 2577 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 2578 { 2579 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 2580 } 2581 2582 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 2583 struct ddb_entry *ddb_entry, 2584 struct scsi_cmnd *cmd) 2585 { 2586 struct srb *srb; 2587 2588 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 2589 if (!srb) 2590 return srb; 2591 2592 kref_init(&srb->srb_ref); 2593 srb->ha = ha; 2594 srb->ddb = ddb_entry; 2595 srb->cmd = cmd; 2596 srb->flags = 0; 2597 CMD_SP(cmd) = (void *)srb; 2598 2599 return srb; 2600 } 2601 2602 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 2603 { 2604 struct scsi_cmnd *cmd = srb->cmd; 2605 2606 if (srb->flags & SRB_DMA_VALID) { 2607 scsi_dma_unmap(cmd); 2608 srb->flags &= ~SRB_DMA_VALID; 2609 } 2610 CMD_SP(cmd) = NULL; 2611 } 2612 2613 void qla4xxx_srb_compl(struct kref *ref) 2614 { 2615 struct srb *srb = container_of(ref, struct srb, srb_ref); 2616 struct scsi_cmnd *cmd = srb->cmd; 2617 struct scsi_qla_host *ha = srb->ha; 2618 2619 qla4xxx_srb_free_dma(ha, srb); 2620 2621 mempool_free(srb, ha->srb_mempool); 2622 2623 cmd->scsi_done(cmd); 2624 } 2625 2626 /** 2627 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 2628 * @host: scsi host 2629 * @cmd: Pointer to Linux's SCSI command structure 2630 * 2631 * Remarks: 2632 * This routine is invoked by Linux to send a SCSI command to the driver. 2633 * The mid-level driver tries to ensure that queuecommand never gets 2634 * invoked concurrently with itself or the interrupt handler (although 2635 * the interrupt handler may call this routine as part of request- 2636 * completion handling). Unfortunely, it sometimes calls the scheduler 2637 * in interrupt context which is a big NO! NO!. 2638 **/ 2639 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 2640 { 2641 struct scsi_qla_host *ha = to_qla_host(host); 2642 struct ddb_entry *ddb_entry = cmd->device->hostdata; 2643 struct iscsi_cls_session *sess = ddb_entry->sess; 2644 struct srb *srb; 2645 int rval; 2646 2647 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 2648 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 2649 cmd->result = DID_NO_CONNECT << 16; 2650 else 2651 cmd->result = DID_REQUEUE << 16; 2652 goto qc_fail_command; 2653 } 2654 2655 if (!sess) { 2656 cmd->result = DID_IMM_RETRY << 16; 2657 goto qc_fail_command; 2658 } 2659 2660 rval = iscsi_session_chkready(sess); 2661 if (rval) { 2662 cmd->result = rval; 2663 goto qc_fail_command; 2664 } 2665 2666 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2667 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2668 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2669 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2670 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 2671 !test_bit(AF_ONLINE, &ha->flags) || 2672 !test_bit(AF_LINK_UP, &ha->flags) || 2673 test_bit(AF_LOOPBACK, &ha->flags) || 2674 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 2675 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 2676 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 2677 goto qc_host_busy; 2678 2679 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 2680 if (!srb) 2681 goto qc_host_busy; 2682 2683 rval = qla4xxx_send_command_to_isp(ha, srb); 2684 if (rval != QLA_SUCCESS) 2685 goto qc_host_busy_free_sp; 2686 2687 return 0; 2688 2689 qc_host_busy_free_sp: 2690 qla4xxx_srb_free_dma(ha, srb); 2691 mempool_free(srb, ha->srb_mempool); 2692 2693 qc_host_busy: 2694 return SCSI_MLQUEUE_HOST_BUSY; 2695 2696 qc_fail_command: 2697 cmd->scsi_done(cmd); 2698 2699 return 0; 2700 } 2701 2702 /** 2703 * qla4xxx_mem_free - frees memory allocated to adapter 2704 * @ha: Pointer to host adapter structure. 2705 * 2706 * Frees memory previously allocated by qla4xxx_mem_alloc 2707 **/ 2708 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 2709 { 2710 if (ha->queues) 2711 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 2712 ha->queues_dma); 2713 2714 if (ha->fw_dump) 2715 vfree(ha->fw_dump); 2716 2717 ha->queues_len = 0; 2718 ha->queues = NULL; 2719 ha->queues_dma = 0; 2720 ha->request_ring = NULL; 2721 ha->request_dma = 0; 2722 ha->response_ring = NULL; 2723 ha->response_dma = 0; 2724 ha->shadow_regs = NULL; 2725 ha->shadow_regs_dma = 0; 2726 ha->fw_dump = NULL; 2727 ha->fw_dump_size = 0; 2728 2729 /* Free srb pool. */ 2730 if (ha->srb_mempool) 2731 mempool_destroy(ha->srb_mempool); 2732 2733 ha->srb_mempool = NULL; 2734 2735 if (ha->chap_dma_pool) 2736 dma_pool_destroy(ha->chap_dma_pool); 2737 2738 if (ha->chap_list) 2739 vfree(ha->chap_list); 2740 ha->chap_list = NULL; 2741 2742 if (ha->fw_ddb_dma_pool) 2743 dma_pool_destroy(ha->fw_ddb_dma_pool); 2744 2745 /* release io space registers */ 2746 if (is_qla8022(ha)) { 2747 if (ha->nx_pcibase) 2748 iounmap( 2749 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 2750 } else if (is_qla8032(ha) || is_qla8042(ha)) { 2751 if (ha->nx_pcibase) 2752 iounmap( 2753 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 2754 } else if (ha->reg) { 2755 iounmap(ha->reg); 2756 } 2757 2758 if (ha->reset_tmplt.buff) 2759 vfree(ha->reset_tmplt.buff); 2760 2761 pci_release_regions(ha->pdev); 2762 } 2763 2764 /** 2765 * qla4xxx_mem_alloc - allocates memory for use by adapter. 2766 * @ha: Pointer to host adapter structure 2767 * 2768 * Allocates DMA memory for request and response queues. Also allocates memory 2769 * for srbs. 2770 **/ 2771 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 2772 { 2773 unsigned long align; 2774 2775 /* Allocate contiguous block of DMA memory for queues. */ 2776 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2777 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 2778 sizeof(struct shadow_regs) + 2779 MEM_ALIGN_VALUE + 2780 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 2781 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 2782 &ha->queues_dma, GFP_KERNEL); 2783 if (ha->queues == NULL) { 2784 ql4_printk(KERN_WARNING, ha, 2785 "Memory Allocation failed - queues.\n"); 2786 2787 goto mem_alloc_error_exit; 2788 } 2789 memset(ha->queues, 0, ha->queues_len); 2790 2791 /* 2792 * As per RISC alignment requirements -- the bus-address must be a 2793 * multiple of the request-ring size (in bytes). 2794 */ 2795 align = 0; 2796 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 2797 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 2798 (MEM_ALIGN_VALUE - 1)); 2799 2800 /* Update request and response queue pointers. */ 2801 ha->request_dma = ha->queues_dma + align; 2802 ha->request_ring = (struct queue_entry *) (ha->queues + align); 2803 ha->response_dma = ha->queues_dma + align + 2804 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 2805 ha->response_ring = (struct queue_entry *) (ha->queues + align + 2806 (REQUEST_QUEUE_DEPTH * 2807 QUEUE_SIZE)); 2808 ha->shadow_regs_dma = ha->queues_dma + align + 2809 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 2810 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 2811 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 2812 (REQUEST_QUEUE_DEPTH * 2813 QUEUE_SIZE) + 2814 (RESPONSE_QUEUE_DEPTH * 2815 QUEUE_SIZE)); 2816 2817 /* Allocate memory for srb pool. */ 2818 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 2819 mempool_free_slab, srb_cachep); 2820 if (ha->srb_mempool == NULL) { 2821 ql4_printk(KERN_WARNING, ha, 2822 "Memory Allocation failed - SRB Pool.\n"); 2823 2824 goto mem_alloc_error_exit; 2825 } 2826 2827 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 2828 CHAP_DMA_BLOCK_SIZE, 8, 0); 2829 2830 if (ha->chap_dma_pool == NULL) { 2831 ql4_printk(KERN_WARNING, ha, 2832 "%s: chap_dma_pool allocation failed..\n", __func__); 2833 goto mem_alloc_error_exit; 2834 } 2835 2836 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 2837 DDB_DMA_BLOCK_SIZE, 8, 0); 2838 2839 if (ha->fw_ddb_dma_pool == NULL) { 2840 ql4_printk(KERN_WARNING, ha, 2841 "%s: fw_ddb_dma_pool allocation failed..\n", 2842 __func__); 2843 goto mem_alloc_error_exit; 2844 } 2845 2846 return QLA_SUCCESS; 2847 2848 mem_alloc_error_exit: 2849 qla4xxx_mem_free(ha); 2850 return QLA_ERROR; 2851 } 2852 2853 /** 2854 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 2855 * @ha: adapter block pointer. 2856 * 2857 * Note: The caller should not hold the idc lock. 2858 **/ 2859 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 2860 { 2861 uint32_t temp, temp_state, temp_val; 2862 int status = QLA_SUCCESS; 2863 2864 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 2865 2866 temp_state = qla82xx_get_temp_state(temp); 2867 temp_val = qla82xx_get_temp_val(temp); 2868 2869 if (temp_state == QLA82XX_TEMP_PANIC) { 2870 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 2871 " exceeds maximum allowed. Hardware has been shut" 2872 " down.\n", temp_val); 2873 status = QLA_ERROR; 2874 } else if (temp_state == QLA82XX_TEMP_WARN) { 2875 if (ha->temperature == QLA82XX_TEMP_NORMAL) 2876 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 2877 " degrees C exceeds operating range." 2878 " Immediate action needed.\n", temp_val); 2879 } else { 2880 if (ha->temperature == QLA82XX_TEMP_WARN) 2881 ql4_printk(KERN_INFO, ha, "Device temperature is" 2882 " now %d degrees C in normal range.\n", 2883 temp_val); 2884 } 2885 ha->temperature = temp_state; 2886 return status; 2887 } 2888 2889 /** 2890 * qla4_8xxx_check_fw_alive - Check firmware health 2891 * @ha: Pointer to host adapter structure. 2892 * 2893 * Context: Interrupt 2894 **/ 2895 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 2896 { 2897 uint32_t fw_heartbeat_counter; 2898 int status = QLA_SUCCESS; 2899 2900 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 2901 QLA8XXX_PEG_ALIVE_COUNTER); 2902 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 2903 if (fw_heartbeat_counter == 0xffffffff) { 2904 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 2905 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 2906 ha->host_no, __func__)); 2907 return status; 2908 } 2909 2910 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 2911 ha->seconds_since_last_heartbeat++; 2912 /* FW not alive after 2 seconds */ 2913 if (ha->seconds_since_last_heartbeat == 2) { 2914 ha->seconds_since_last_heartbeat = 0; 2915 qla4_8xxx_dump_peg_reg(ha); 2916 status = QLA_ERROR; 2917 } 2918 } else 2919 ha->seconds_since_last_heartbeat = 0; 2920 2921 ha->fw_heartbeat_counter = fw_heartbeat_counter; 2922 return status; 2923 } 2924 2925 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 2926 { 2927 uint32_t halt_status; 2928 int halt_status_unrecoverable = 0; 2929 2930 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 2931 2932 if (is_qla8022(ha)) { 2933 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 2934 __func__); 2935 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2936 CRB_NIU_XG_PAUSE_CTL_P0 | 2937 CRB_NIU_XG_PAUSE_CTL_P1); 2938 2939 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 2940 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 2941 __func__); 2942 if (halt_status & HALT_STATUS_UNRECOVERABLE) 2943 halt_status_unrecoverable = 1; 2944 } else if (is_qla8032(ha) || is_qla8042(ha)) { 2945 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 2946 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 2947 __func__); 2948 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 2949 halt_status_unrecoverable = 1; 2950 } 2951 2952 /* 2953 * Since we cannot change dev_state in interrupt context, 2954 * set appropriate DPC flag then wakeup DPC 2955 */ 2956 if (halt_status_unrecoverable) { 2957 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 2958 } else { 2959 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 2960 __func__); 2961 set_bit(DPC_RESET_HA, &ha->dpc_flags); 2962 } 2963 qla4xxx_mailbox_premature_completion(ha); 2964 qla4xxx_wake_dpc(ha); 2965 } 2966 2967 /** 2968 * qla4_8xxx_watchdog - Poll dev state 2969 * @ha: Pointer to host adapter structure. 2970 * 2971 * Context: Interrupt 2972 **/ 2973 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 2974 { 2975 uint32_t dev_state; 2976 uint32_t idc_ctrl; 2977 2978 /* don't poll if reset is going on */ 2979 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2980 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2981 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 2982 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 2983 2984 if (qla4_8xxx_check_temp(ha)) { 2985 if (is_qla8022(ha)) { 2986 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 2987 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2988 CRB_NIU_XG_PAUSE_CTL_P0 | 2989 CRB_NIU_XG_PAUSE_CTL_P1); 2990 } 2991 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 2992 qla4xxx_wake_dpc(ha); 2993 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 2994 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 2995 2996 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 2997 __func__); 2998 2999 if (is_qla8032(ha) || is_qla8042(ha)) { 3000 idc_ctrl = qla4_83xx_rd_reg(ha, 3001 QLA83XX_IDC_DRV_CTRL); 3002 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 3003 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 3004 __func__); 3005 qla4xxx_mailbox_premature_completion( 3006 ha); 3007 } 3008 } 3009 3010 if ((is_qla8032(ha) || is_qla8042(ha)) || 3011 (is_qla8022(ha) && !ql4xdontresethba)) { 3012 set_bit(DPC_RESET_HA, &ha->dpc_flags); 3013 qla4xxx_wake_dpc(ha); 3014 } 3015 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 3016 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 3017 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 3018 __func__); 3019 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 3020 qla4xxx_wake_dpc(ha); 3021 } else { 3022 /* Check firmware health */ 3023 if (qla4_8xxx_check_fw_alive(ha)) 3024 qla4_8xxx_process_fw_error(ha); 3025 } 3026 } 3027 } 3028 3029 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 3030 { 3031 struct iscsi_session *sess; 3032 struct ddb_entry *ddb_entry; 3033 struct scsi_qla_host *ha; 3034 3035 sess = cls_sess->dd_data; 3036 ddb_entry = sess->dd_data; 3037 ha = ddb_entry->ha; 3038 3039 if (!(ddb_entry->ddb_type == FLASH_DDB)) 3040 return; 3041 3042 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 3043 !iscsi_is_session_online(cls_sess)) { 3044 if (atomic_read(&ddb_entry->retry_relogin_timer) != 3045 INVALID_ENTRY) { 3046 if (atomic_read(&ddb_entry->retry_relogin_timer) == 3047 0) { 3048 atomic_set(&ddb_entry->retry_relogin_timer, 3049 INVALID_ENTRY); 3050 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 3051 set_bit(DF_RELOGIN, &ddb_entry->flags); 3052 DEBUG2(ql4_printk(KERN_INFO, ha, 3053 "%s: index [%d] login device\n", 3054 __func__, ddb_entry->fw_ddb_index)); 3055 } else 3056 atomic_dec(&ddb_entry->retry_relogin_timer); 3057 } 3058 } 3059 3060 /* Wait for relogin to timeout */ 3061 if (atomic_read(&ddb_entry->relogin_timer) && 3062 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 3063 /* 3064 * If the relogin times out and the device is 3065 * still NOT ONLINE then try and relogin again. 3066 */ 3067 if (!iscsi_is_session_online(cls_sess)) { 3068 /* Reset retry relogin timer */ 3069 atomic_inc(&ddb_entry->relogin_retry_count); 3070 DEBUG2(ql4_printk(KERN_INFO, ha, 3071 "%s: index[%d] relogin timed out-retrying" 3072 " relogin (%d), retry (%d)\n", __func__, 3073 ddb_entry->fw_ddb_index, 3074 atomic_read(&ddb_entry->relogin_retry_count), 3075 ddb_entry->default_time2wait + 4)); 3076 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 3077 atomic_set(&ddb_entry->retry_relogin_timer, 3078 ddb_entry->default_time2wait + 4); 3079 } 3080 } 3081 } 3082 3083 /** 3084 * qla4xxx_timer - checks every second for work to do. 3085 * @ha: Pointer to host adapter structure. 3086 **/ 3087 static void qla4xxx_timer(struct scsi_qla_host *ha) 3088 { 3089 int start_dpc = 0; 3090 uint16_t w; 3091 3092 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 3093 3094 /* If we are in the middle of AER/EEH processing 3095 * skip any processing and reschedule the timer 3096 */ 3097 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 3098 mod_timer(&ha->timer, jiffies + HZ); 3099 return; 3100 } 3101 3102 /* Hardware read to trigger an EEH error during mailbox waits. */ 3103 if (!pci_channel_offline(ha->pdev)) 3104 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 3105 3106 if (is_qla80XX(ha)) 3107 qla4_8xxx_watchdog(ha); 3108 3109 if (is_qla40XX(ha)) { 3110 /* Check for heartbeat interval. */ 3111 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 3112 ha->heartbeat_interval != 0) { 3113 ha->seconds_since_last_heartbeat++; 3114 if (ha->seconds_since_last_heartbeat > 3115 ha->heartbeat_interval + 2) 3116 set_bit(DPC_RESET_HA, &ha->dpc_flags); 3117 } 3118 } 3119 3120 /* Process any deferred work. */ 3121 if (!list_empty(&ha->work_list)) 3122 start_dpc++; 3123 3124 /* Wakeup the dpc routine for this adapter, if needed. */ 3125 if (start_dpc || 3126 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 3127 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 3128 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 3129 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 3130 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 3131 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 3132 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 3133 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 3134 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 3135 test_bit(DPC_AEN, &ha->dpc_flags)) { 3136 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 3137 " - dpc flags = 0x%lx\n", 3138 ha->host_no, __func__, ha->dpc_flags)); 3139 qla4xxx_wake_dpc(ha); 3140 } 3141 3142 /* Reschedule timer thread to call us back in one second */ 3143 mod_timer(&ha->timer, jiffies + HZ); 3144 3145 DEBUG2(ha->seconds_since_last_intr++); 3146 } 3147 3148 /** 3149 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 3150 * @ha: Pointer to host adapter structure. 3151 * 3152 * This routine stalls the driver until all outstanding commands are returned. 3153 * Caller must release the Hardware Lock prior to calling this routine. 3154 **/ 3155 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 3156 { 3157 uint32_t index = 0; 3158 unsigned long flags; 3159 struct scsi_cmnd *cmd; 3160 3161 unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 3162 3163 DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 3164 "complete\n", WAIT_CMD_TOV)); 3165 3166 while (!time_after_eq(jiffies, wtime)) { 3167 spin_lock_irqsave(&ha->hardware_lock, flags); 3168 /* Find a command that hasn't completed. */ 3169 for (index = 0; index < ha->host->can_queue; index++) { 3170 cmd = scsi_host_find_tag(ha->host, index); 3171 /* 3172 * We cannot just check if the index is valid, 3173 * becase if we are run from the scsi eh, then 3174 * the scsi/block layer is going to prevent 3175 * the tag from being released. 3176 */ 3177 if (cmd != NULL && CMD_SP(cmd)) 3178 break; 3179 } 3180 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3181 3182 /* If No Commands are pending, wait is complete */ 3183 if (index == ha->host->can_queue) 3184 return QLA_SUCCESS; 3185 3186 msleep(1000); 3187 } 3188 /* If we timed out on waiting for commands to come back 3189 * return ERROR. */ 3190 return QLA_ERROR; 3191 } 3192 3193 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 3194 { 3195 uint32_t ctrl_status; 3196 unsigned long flags = 0; 3197 3198 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 3199 3200 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 3201 return QLA_ERROR; 3202 3203 spin_lock_irqsave(&ha->hardware_lock, flags); 3204 3205 /* 3206 * If the SCSI Reset Interrupt bit is set, clear it. 3207 * Otherwise, the Soft Reset won't work. 3208 */ 3209 ctrl_status = readw(&ha->reg->ctrl_status); 3210 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 3211 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 3212 3213 /* Issue Soft Reset */ 3214 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 3215 readl(&ha->reg->ctrl_status); 3216 3217 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3218 return QLA_SUCCESS; 3219 } 3220 3221 /** 3222 * qla4xxx_soft_reset - performs soft reset. 3223 * @ha: Pointer to host adapter structure. 3224 **/ 3225 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 3226 { 3227 uint32_t max_wait_time; 3228 unsigned long flags = 0; 3229 int status; 3230 uint32_t ctrl_status; 3231 3232 status = qla4xxx_hw_reset(ha); 3233 if (status != QLA_SUCCESS) 3234 return status; 3235 3236 status = QLA_ERROR; 3237 /* Wait until the Network Reset Intr bit is cleared */ 3238 max_wait_time = RESET_INTR_TOV; 3239 do { 3240 spin_lock_irqsave(&ha->hardware_lock, flags); 3241 ctrl_status = readw(&ha->reg->ctrl_status); 3242 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3243 3244 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 3245 break; 3246 3247 msleep(1000); 3248 } while ((--max_wait_time)); 3249 3250 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 3251 DEBUG2(printk(KERN_WARNING 3252 "scsi%ld: Network Reset Intr not cleared by " 3253 "Network function, clearing it now!\n", 3254 ha->host_no)); 3255 spin_lock_irqsave(&ha->hardware_lock, flags); 3256 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 3257 readl(&ha->reg->ctrl_status); 3258 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3259 } 3260 3261 /* Wait until the firmware tells us the Soft Reset is done */ 3262 max_wait_time = SOFT_RESET_TOV; 3263 do { 3264 spin_lock_irqsave(&ha->hardware_lock, flags); 3265 ctrl_status = readw(&ha->reg->ctrl_status); 3266 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3267 3268 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 3269 status = QLA_SUCCESS; 3270 break; 3271 } 3272 3273 msleep(1000); 3274 } while ((--max_wait_time)); 3275 3276 /* 3277 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 3278 * after the soft reset has taken place. 3279 */ 3280 spin_lock_irqsave(&ha->hardware_lock, flags); 3281 ctrl_status = readw(&ha->reg->ctrl_status); 3282 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 3283 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 3284 readl(&ha->reg->ctrl_status); 3285 } 3286 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3287 3288 /* If soft reset fails then most probably the bios on other 3289 * function is also enabled. 3290 * Since the initialization is sequential the other fn 3291 * wont be able to acknowledge the soft reset. 3292 * Issue a force soft reset to workaround this scenario. 3293 */ 3294 if (max_wait_time == 0) { 3295 /* Issue Force Soft Reset */ 3296 spin_lock_irqsave(&ha->hardware_lock, flags); 3297 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 3298 readl(&ha->reg->ctrl_status); 3299 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3300 /* Wait until the firmware tells us the Soft Reset is done */ 3301 max_wait_time = SOFT_RESET_TOV; 3302 do { 3303 spin_lock_irqsave(&ha->hardware_lock, flags); 3304 ctrl_status = readw(&ha->reg->ctrl_status); 3305 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3306 3307 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 3308 status = QLA_SUCCESS; 3309 break; 3310 } 3311 3312 msleep(1000); 3313 } while ((--max_wait_time)); 3314 } 3315 3316 return status; 3317 } 3318 3319 /** 3320 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 3321 * @ha: Pointer to host adapter structure. 3322 * @res: returned scsi status 3323 * 3324 * This routine is called just prior to a HARD RESET to return all 3325 * outstanding commands back to the Operating System. 3326 * Caller should make sure that the following locks are released 3327 * before this calling routine: Hardware lock, and io_request_lock. 3328 **/ 3329 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 3330 { 3331 struct srb *srb; 3332 int i; 3333 unsigned long flags; 3334 3335 spin_lock_irqsave(&ha->hardware_lock, flags); 3336 for (i = 0; i < ha->host->can_queue; i++) { 3337 srb = qla4xxx_del_from_active_array(ha, i); 3338 if (srb != NULL) { 3339 srb->cmd->result = res; 3340 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 3341 } 3342 } 3343 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3344 } 3345 3346 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 3347 { 3348 clear_bit(AF_ONLINE, &ha->flags); 3349 3350 /* Disable the board */ 3351 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 3352 3353 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 3354 qla4xxx_mark_all_devices_missing(ha); 3355 clear_bit(AF_INIT_DONE, &ha->flags); 3356 } 3357 3358 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 3359 { 3360 struct iscsi_session *sess; 3361 struct ddb_entry *ddb_entry; 3362 3363 sess = cls_session->dd_data; 3364 ddb_entry = sess->dd_data; 3365 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 3366 3367 if (ddb_entry->ddb_type == FLASH_DDB) 3368 iscsi_block_session(ddb_entry->sess); 3369 else 3370 iscsi_session_failure(cls_session->dd_data, 3371 ISCSI_ERR_CONN_FAILED); 3372 } 3373 3374 /** 3375 * qla4xxx_recover_adapter - recovers adapter after a fatal error 3376 * @ha: Pointer to host adapter structure. 3377 **/ 3378 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 3379 { 3380 int status = QLA_ERROR; 3381 uint8_t reset_chip = 0; 3382 uint32_t dev_state; 3383 unsigned long wait; 3384 3385 /* Stall incoming I/O until we are done */ 3386 scsi_block_requests(ha->host); 3387 clear_bit(AF_ONLINE, &ha->flags); 3388 clear_bit(AF_LINK_UP, &ha->flags); 3389 3390 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 3391 3392 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 3393 3394 if ((is_qla8032(ha) || is_qla8042(ha)) && 3395 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 3396 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 3397 __func__); 3398 /* disable pause frame for ISP83xx */ 3399 qla4_83xx_disable_pause(ha); 3400 } 3401 3402 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 3403 3404 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 3405 reset_chip = 1; 3406 3407 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 3408 * do not reset adapter, jump to initialize_adapter */ 3409 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3410 status = QLA_SUCCESS; 3411 goto recover_ha_init_adapter; 3412 } 3413 3414 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 3415 * from eh_host_reset or ioctl module */ 3416 if (is_qla80XX(ha) && !reset_chip && 3417 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 3418 3419 DEBUG2(ql4_printk(KERN_INFO, ha, 3420 "scsi%ld: %s - Performing stop_firmware...\n", 3421 ha->host_no, __func__)); 3422 status = ha->isp_ops->reset_firmware(ha); 3423 if (status == QLA_SUCCESS) { 3424 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 3425 qla4xxx_cmd_wait(ha); 3426 3427 ha->isp_ops->disable_intrs(ha); 3428 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3429 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3430 } else { 3431 /* If the stop_firmware fails then 3432 * reset the entire chip */ 3433 reset_chip = 1; 3434 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3435 set_bit(DPC_RESET_HA, &ha->dpc_flags); 3436 } 3437 } 3438 3439 /* Issue full chip reset if recovering from a catastrophic error, 3440 * or if stop_firmware fails for ISP-8xxx. 3441 * This is the default case for ISP-4xxx */ 3442 if (is_qla40XX(ha) || reset_chip) { 3443 if (is_qla40XX(ha)) 3444 goto chip_reset; 3445 3446 /* Check if 8XXX firmware is alive or not 3447 * We may have arrived here from NEED_RESET 3448 * detection only */ 3449 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 3450 goto chip_reset; 3451 3452 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 3453 while (time_before(jiffies, wait)) { 3454 if (qla4_8xxx_check_fw_alive(ha)) { 3455 qla4xxx_mailbox_premature_completion(ha); 3456 break; 3457 } 3458 3459 set_current_state(TASK_UNINTERRUPTIBLE); 3460 schedule_timeout(HZ); 3461 } 3462 chip_reset: 3463 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 3464 qla4xxx_cmd_wait(ha); 3465 3466 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3467 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3468 DEBUG2(ql4_printk(KERN_INFO, ha, 3469 "scsi%ld: %s - Performing chip reset..\n", 3470 ha->host_no, __func__)); 3471 status = ha->isp_ops->reset_chip(ha); 3472 } 3473 3474 /* Flush any pending ddb changed AENs */ 3475 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3476 3477 recover_ha_init_adapter: 3478 /* Upon successful firmware/chip reset, re-initialize the adapter */ 3479 if (status == QLA_SUCCESS) { 3480 /* For ISP-4xxx, force function 1 to always initialize 3481 * before function 3 to prevent both funcions from 3482 * stepping on top of the other */ 3483 if (is_qla40XX(ha) && (ha->mac_index == 3)) 3484 ssleep(6); 3485 3486 /* NOTE: AF_ONLINE flag set upon successful completion of 3487 * qla4xxx_initialize_adapter */ 3488 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 3489 } 3490 3491 /* Retry failed adapter initialization, if necessary 3492 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 3493 * case to prevent ping-pong resets between functions */ 3494 if (!test_bit(AF_ONLINE, &ha->flags) && 3495 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3496 /* Adapter initialization failed, see if we can retry 3497 * resetting the ha. 3498 * Since we don't want to block the DPC for too long 3499 * with multiple resets in the same thread, 3500 * utilize DPC to retry */ 3501 if (is_qla80XX(ha)) { 3502 ha->isp_ops->idc_lock(ha); 3503 dev_state = qla4_8xxx_rd_direct(ha, 3504 QLA8XXX_CRB_DEV_STATE); 3505 ha->isp_ops->idc_unlock(ha); 3506 if (dev_state == QLA8XXX_DEV_FAILED) { 3507 ql4_printk(KERN_INFO, ha, "%s: don't retry " 3508 "recover adapter. H/W is in Failed " 3509 "state\n", __func__); 3510 qla4xxx_dead_adapter_cleanup(ha); 3511 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3512 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3513 clear_bit(DPC_RESET_HA_FW_CONTEXT, 3514 &ha->dpc_flags); 3515 status = QLA_ERROR; 3516 3517 goto exit_recover; 3518 } 3519 } 3520 3521 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 3522 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 3523 DEBUG2(printk("scsi%ld: recover adapter - retrying " 3524 "(%d) more times\n", ha->host_no, 3525 ha->retry_reset_ha_cnt)); 3526 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3527 status = QLA_ERROR; 3528 } else { 3529 if (ha->retry_reset_ha_cnt > 0) { 3530 /* Schedule another Reset HA--DPC will retry */ 3531 ha->retry_reset_ha_cnt--; 3532 DEBUG2(printk("scsi%ld: recover adapter - " 3533 "retry remaining %d\n", 3534 ha->host_no, 3535 ha->retry_reset_ha_cnt)); 3536 status = QLA_ERROR; 3537 } 3538 3539 if (ha->retry_reset_ha_cnt == 0) { 3540 /* Recover adapter retries have been exhausted. 3541 * Adapter DEAD */ 3542 DEBUG2(printk("scsi%ld: recover adapter " 3543 "failed - board disabled\n", 3544 ha->host_no)); 3545 qla4xxx_dead_adapter_cleanup(ha); 3546 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3547 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3548 clear_bit(DPC_RESET_HA_FW_CONTEXT, 3549 &ha->dpc_flags); 3550 status = QLA_ERROR; 3551 } 3552 } 3553 } else { 3554 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3555 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3556 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 3557 } 3558 3559 exit_recover: 3560 ha->adapter_error_count++; 3561 3562 if (test_bit(AF_ONLINE, &ha->flags)) 3563 ha->isp_ops->enable_intrs(ha); 3564 3565 scsi_unblock_requests(ha->host); 3566 3567 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 3568 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 3569 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 3570 3571 return status; 3572 } 3573 3574 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 3575 { 3576 struct iscsi_session *sess; 3577 struct ddb_entry *ddb_entry; 3578 struct scsi_qla_host *ha; 3579 3580 sess = cls_session->dd_data; 3581 ddb_entry = sess->dd_data; 3582 ha = ddb_entry->ha; 3583 if (!iscsi_is_session_online(cls_session)) { 3584 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 3585 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3586 " unblock session\n", ha->host_no, __func__, 3587 ddb_entry->fw_ddb_index); 3588 iscsi_unblock_session(ddb_entry->sess); 3589 } else { 3590 /* Trigger relogin */ 3591 if (ddb_entry->ddb_type == FLASH_DDB) { 3592 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 3593 test_bit(DF_DISABLE_RELOGIN, 3594 &ddb_entry->flags))) 3595 qla4xxx_arm_relogin_timer(ddb_entry); 3596 } else 3597 iscsi_session_failure(cls_session->dd_data, 3598 ISCSI_ERR_CONN_FAILED); 3599 } 3600 } 3601 } 3602 3603 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 3604 { 3605 struct iscsi_session *sess; 3606 struct ddb_entry *ddb_entry; 3607 struct scsi_qla_host *ha; 3608 3609 sess = cls_session->dd_data; 3610 ddb_entry = sess->dd_data; 3611 ha = ddb_entry->ha; 3612 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3613 " unblock session\n", ha->host_no, __func__, 3614 ddb_entry->fw_ddb_index); 3615 3616 iscsi_unblock_session(ddb_entry->sess); 3617 3618 /* Start scan target */ 3619 if (test_bit(AF_ONLINE, &ha->flags)) { 3620 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3621 " start scan\n", ha->host_no, __func__, 3622 ddb_entry->fw_ddb_index); 3623 scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 3624 } 3625 return QLA_SUCCESS; 3626 } 3627 3628 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 3629 { 3630 struct iscsi_session *sess; 3631 struct ddb_entry *ddb_entry; 3632 struct scsi_qla_host *ha; 3633 int status = QLA_SUCCESS; 3634 3635 sess = cls_session->dd_data; 3636 ddb_entry = sess->dd_data; 3637 ha = ddb_entry->ha; 3638 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 3639 " unblock user space session\n", ha->host_no, __func__, 3640 ddb_entry->fw_ddb_index); 3641 3642 if (!iscsi_is_session_online(cls_session)) { 3643 iscsi_conn_start(ddb_entry->conn); 3644 iscsi_conn_login_event(ddb_entry->conn, 3645 ISCSI_CONN_STATE_LOGGED_IN); 3646 } else { 3647 ql4_printk(KERN_INFO, ha, 3648 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 3649 ha->host_no, __func__, ddb_entry->fw_ddb_index, 3650 cls_session->sid); 3651 status = QLA_ERROR; 3652 } 3653 3654 return status; 3655 } 3656 3657 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 3658 { 3659 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 3660 } 3661 3662 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 3663 { 3664 uint16_t relogin_timer; 3665 struct iscsi_session *sess; 3666 struct ddb_entry *ddb_entry; 3667 struct scsi_qla_host *ha; 3668 3669 sess = cls_sess->dd_data; 3670 ddb_entry = sess->dd_data; 3671 ha = ddb_entry->ha; 3672 3673 relogin_timer = max(ddb_entry->default_relogin_timeout, 3674 (uint16_t)RELOGIN_TOV); 3675 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 3676 3677 DEBUG2(ql4_printk(KERN_INFO, ha, 3678 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 3679 ddb_entry->fw_ddb_index, relogin_timer)); 3680 3681 qla4xxx_login_flash_ddb(cls_sess); 3682 } 3683 3684 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 3685 { 3686 struct iscsi_session *sess; 3687 struct ddb_entry *ddb_entry; 3688 struct scsi_qla_host *ha; 3689 3690 sess = cls_sess->dd_data; 3691 ddb_entry = sess->dd_data; 3692 ha = ddb_entry->ha; 3693 3694 if (!(ddb_entry->ddb_type == FLASH_DDB)) 3695 return; 3696 3697 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 3698 return; 3699 3700 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 3701 !iscsi_is_session_online(cls_sess)) { 3702 DEBUG2(ql4_printk(KERN_INFO, ha, 3703 "relogin issued\n")); 3704 qla4xxx_relogin_flash_ddb(cls_sess); 3705 } 3706 } 3707 3708 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 3709 { 3710 if (ha->dpc_thread) 3711 queue_work(ha->dpc_thread, &ha->dpc_work); 3712 } 3713 3714 static struct qla4_work_evt * 3715 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 3716 enum qla4_work_type type) 3717 { 3718 struct qla4_work_evt *e; 3719 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 3720 3721 e = kzalloc(size, GFP_ATOMIC); 3722 if (!e) 3723 return NULL; 3724 3725 INIT_LIST_HEAD(&e->list); 3726 e->type = type; 3727 return e; 3728 } 3729 3730 static void qla4xxx_post_work(struct scsi_qla_host *ha, 3731 struct qla4_work_evt *e) 3732 { 3733 unsigned long flags; 3734 3735 spin_lock_irqsave(&ha->work_lock, flags); 3736 list_add_tail(&e->list, &ha->work_list); 3737 spin_unlock_irqrestore(&ha->work_lock, flags); 3738 qla4xxx_wake_dpc(ha); 3739 } 3740 3741 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 3742 enum iscsi_host_event_code aen_code, 3743 uint32_t data_size, uint8_t *data) 3744 { 3745 struct qla4_work_evt *e; 3746 3747 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 3748 if (!e) 3749 return QLA_ERROR; 3750 3751 e->u.aen.code = aen_code; 3752 e->u.aen.data_size = data_size; 3753 memcpy(e->u.aen.data, data, data_size); 3754 3755 qla4xxx_post_work(ha, e); 3756 3757 return QLA_SUCCESS; 3758 } 3759 3760 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 3761 uint32_t status, uint32_t pid, 3762 uint32_t data_size, uint8_t *data) 3763 { 3764 struct qla4_work_evt *e; 3765 3766 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 3767 if (!e) 3768 return QLA_ERROR; 3769 3770 e->u.ping.status = status; 3771 e->u.ping.pid = pid; 3772 e->u.ping.data_size = data_size; 3773 memcpy(e->u.ping.data, data, data_size); 3774 3775 qla4xxx_post_work(ha, e); 3776 3777 return QLA_SUCCESS; 3778 } 3779 3780 static void qla4xxx_do_work(struct scsi_qla_host *ha) 3781 { 3782 struct qla4_work_evt *e, *tmp; 3783 unsigned long flags; 3784 LIST_HEAD(work); 3785 3786 spin_lock_irqsave(&ha->work_lock, flags); 3787 list_splice_init(&ha->work_list, &work); 3788 spin_unlock_irqrestore(&ha->work_lock, flags); 3789 3790 list_for_each_entry_safe(e, tmp, &work, list) { 3791 list_del_init(&e->list); 3792 3793 switch (e->type) { 3794 case QLA4_EVENT_AEN: 3795 iscsi_post_host_event(ha->host_no, 3796 &qla4xxx_iscsi_transport, 3797 e->u.aen.code, 3798 e->u.aen.data_size, 3799 e->u.aen.data); 3800 break; 3801 case QLA4_EVENT_PING_STATUS: 3802 iscsi_ping_comp_event(ha->host_no, 3803 &qla4xxx_iscsi_transport, 3804 e->u.ping.status, 3805 e->u.ping.pid, 3806 e->u.ping.data_size, 3807 e->u.ping.data); 3808 break; 3809 default: 3810 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 3811 "supported", e->type); 3812 } 3813 kfree(e); 3814 } 3815 } 3816 3817 /** 3818 * qla4xxx_do_dpc - dpc routine 3819 * @data: in our case pointer to adapter structure 3820 * 3821 * This routine is a task that is schedule by the interrupt handler 3822 * to perform the background processing for interrupts. We put it 3823 * on a task queue that is consumed whenever the scheduler runs; that's 3824 * so you can do anything (i.e. put the process to sleep etc). In fact, 3825 * the mid-level tries to sleep when it reaches the driver threshold 3826 * "host->can_queue". This can cause a panic if we were in our interrupt code. 3827 **/ 3828 static void qla4xxx_do_dpc(struct work_struct *work) 3829 { 3830 struct scsi_qla_host *ha = 3831 container_of(work, struct scsi_qla_host, dpc_work); 3832 int status = QLA_ERROR; 3833 3834 DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 3835 "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 3836 ha->host_no, __func__, ha->flags, ha->dpc_flags)) 3837 3838 /* Initialization not yet finished. Don't do anything yet. */ 3839 if (!test_bit(AF_INIT_DONE, &ha->flags)) 3840 return; 3841 3842 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 3843 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 3844 ha->host_no, __func__, ha->flags)); 3845 return; 3846 } 3847 3848 /* post events to application */ 3849 qla4xxx_do_work(ha); 3850 3851 if (is_qla80XX(ha)) { 3852 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 3853 if (is_qla8032(ha) || is_qla8042(ha)) { 3854 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 3855 __func__); 3856 /* disable pause frame for ISP83xx */ 3857 qla4_83xx_disable_pause(ha); 3858 } 3859 3860 ha->isp_ops->idc_lock(ha); 3861 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 3862 QLA8XXX_DEV_FAILED); 3863 ha->isp_ops->idc_unlock(ha); 3864 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 3865 qla4_8xxx_device_state_handler(ha); 3866 } 3867 3868 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 3869 if (is_qla8042(ha)) { 3870 if (ha->idc_info.info2 & 3871 ENABLE_INTERNAL_LOOPBACK) { 3872 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 3873 __func__); 3874 status = qla4_84xx_config_acb(ha, 3875 ACB_CONFIG_DISABLE); 3876 if (status != QLA_SUCCESS) { 3877 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 3878 __func__); 3879 } 3880 } 3881 } 3882 qla4_83xx_post_idc_ack(ha); 3883 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 3884 } 3885 3886 if (is_qla8042(ha) && 3887 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 3888 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 3889 __func__); 3890 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 3891 QLA_SUCCESS) { 3892 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 3893 __func__); 3894 } 3895 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 3896 } 3897 3898 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 3899 qla4_8xxx_need_qsnt_handler(ha); 3900 } 3901 } 3902 3903 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 3904 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 3905 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 3906 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 3907 if ((is_qla8022(ha) && ql4xdontresethba) || 3908 ((is_qla8032(ha) || is_qla8042(ha)) && 3909 qla4_83xx_idc_dontreset(ha))) { 3910 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 3911 ha->host_no, __func__)); 3912 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 3913 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3914 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3915 goto dpc_post_reset_ha; 3916 } 3917 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 3918 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 3919 qla4xxx_recover_adapter(ha); 3920 3921 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 3922 uint8_t wait_time = RESET_INTR_TOV; 3923 3924 while ((readw(&ha->reg->ctrl_status) & 3925 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 3926 if (--wait_time == 0) 3927 break; 3928 msleep(1000); 3929 } 3930 if (wait_time == 0) 3931 DEBUG2(printk("scsi%ld: %s: SR|FSR " 3932 "bit not cleared-- resetting\n", 3933 ha->host_no, __func__)); 3934 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 3935 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 3936 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 3937 status = qla4xxx_recover_adapter(ha); 3938 } 3939 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 3940 if (status == QLA_SUCCESS) 3941 ha->isp_ops->enable_intrs(ha); 3942 } 3943 } 3944 3945 dpc_post_reset_ha: 3946 /* ---- process AEN? --- */ 3947 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 3948 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 3949 3950 /* ---- Get DHCP IP Address? --- */ 3951 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 3952 qla4xxx_get_dhcp_ip_address(ha); 3953 3954 /* ---- relogin device? --- */ 3955 if (adapter_up(ha) && 3956 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 3957 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 3958 } 3959 3960 /* ---- link change? --- */ 3961 if (!test_bit(AF_LOOPBACK, &ha->flags) && 3962 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 3963 if (!test_bit(AF_LINK_UP, &ha->flags)) { 3964 /* ---- link down? --- */ 3965 qla4xxx_mark_all_devices_missing(ha); 3966 } else { 3967 /* ---- link up? --- * 3968 * F/W will auto login to all devices ONLY ONCE after 3969 * link up during driver initialization and runtime 3970 * fatal error recovery. Therefore, the driver must 3971 * manually relogin to devices when recovering from 3972 * connection failures, logouts, expired KATO, etc. */ 3973 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 3974 qla4xxx_build_ddb_list(ha, ha->is_reset); 3975 iscsi_host_for_each_session(ha->host, 3976 qla4xxx_login_flash_ddb); 3977 } else 3978 qla4xxx_relogin_all_devices(ha); 3979 } 3980 } 3981 } 3982 3983 /** 3984 * qla4xxx_free_adapter - release the adapter 3985 * @ha: pointer to adapter structure 3986 **/ 3987 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 3988 { 3989 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 3990 3991 /* Turn-off interrupts on the card. */ 3992 ha->isp_ops->disable_intrs(ha); 3993 3994 if (is_qla40XX(ha)) { 3995 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 3996 &ha->reg->ctrl_status); 3997 readl(&ha->reg->ctrl_status); 3998 } else if (is_qla8022(ha)) { 3999 writel(0, &ha->qla4_82xx_reg->host_int); 4000 readl(&ha->qla4_82xx_reg->host_int); 4001 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4002 writel(0, &ha->qla4_83xx_reg->risc_intr); 4003 readl(&ha->qla4_83xx_reg->risc_intr); 4004 } 4005 4006 /* Remove timer thread, if present */ 4007 if (ha->timer_active) 4008 qla4xxx_stop_timer(ha); 4009 4010 /* Kill the kernel thread for this host */ 4011 if (ha->dpc_thread) 4012 destroy_workqueue(ha->dpc_thread); 4013 4014 /* Kill the kernel thread for this host */ 4015 if (ha->task_wq) 4016 destroy_workqueue(ha->task_wq); 4017 4018 /* Put firmware in known state */ 4019 ha->isp_ops->reset_firmware(ha); 4020 4021 if (is_qla80XX(ha)) { 4022 ha->isp_ops->idc_lock(ha); 4023 qla4_8xxx_clear_drv_active(ha); 4024 ha->isp_ops->idc_unlock(ha); 4025 } 4026 4027 /* Detach interrupts */ 4028 qla4xxx_free_irqs(ha); 4029 4030 /* free extra memory */ 4031 qla4xxx_mem_free(ha); 4032 } 4033 4034 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 4035 { 4036 int status = 0; 4037 unsigned long mem_base, mem_len, db_base, db_len; 4038 struct pci_dev *pdev = ha->pdev; 4039 4040 status = pci_request_regions(pdev, DRIVER_NAME); 4041 if (status) { 4042 printk(KERN_WARNING 4043 "scsi(%ld) Failed to reserve PIO regions (%s) " 4044 "status=%d\n", ha->host_no, pci_name(pdev), status); 4045 goto iospace_error_exit; 4046 } 4047 4048 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 4049 __func__, pdev->revision)); 4050 ha->revision_id = pdev->revision; 4051 4052 /* remap phys address */ 4053 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 4054 mem_len = pci_resource_len(pdev, 0); 4055 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 4056 __func__, mem_base, mem_len)); 4057 4058 /* mapping of pcibase pointer */ 4059 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 4060 if (!ha->nx_pcibase) { 4061 printk(KERN_ERR 4062 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 4063 pci_release_regions(ha->pdev); 4064 goto iospace_error_exit; 4065 } 4066 4067 /* Mapping of IO base pointer, door bell read and write pointer */ 4068 4069 /* mapping of IO base pointer */ 4070 if (is_qla8022(ha)) { 4071 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 4072 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 4073 (ha->pdev->devfn << 11)); 4074 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 4075 QLA82XX_CAM_RAM_DB2); 4076 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4077 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 4078 ((uint8_t *)ha->nx_pcibase); 4079 } 4080 4081 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 4082 db_len = pci_resource_len(pdev, 4); 4083 4084 return 0; 4085 iospace_error_exit: 4086 return -ENOMEM; 4087 } 4088 4089 /*** 4090 * qla4xxx_iospace_config - maps registers 4091 * @ha: pointer to adapter structure 4092 * 4093 * This routines maps HBA's registers from the pci address space 4094 * into the kernel virtual address space for memory mapped i/o. 4095 **/ 4096 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 4097 { 4098 unsigned long pio, pio_len, pio_flags; 4099 unsigned long mmio, mmio_len, mmio_flags; 4100 4101 pio = pci_resource_start(ha->pdev, 0); 4102 pio_len = pci_resource_len(ha->pdev, 0); 4103 pio_flags = pci_resource_flags(ha->pdev, 0); 4104 if (pio_flags & IORESOURCE_IO) { 4105 if (pio_len < MIN_IOBASE_LEN) { 4106 ql4_printk(KERN_WARNING, ha, 4107 "Invalid PCI I/O region size\n"); 4108 pio = 0; 4109 } 4110 } else { 4111 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 4112 pio = 0; 4113 } 4114 4115 /* Use MMIO operations for all accesses. */ 4116 mmio = pci_resource_start(ha->pdev, 1); 4117 mmio_len = pci_resource_len(ha->pdev, 1); 4118 mmio_flags = pci_resource_flags(ha->pdev, 1); 4119 4120 if (!(mmio_flags & IORESOURCE_MEM)) { 4121 ql4_printk(KERN_ERR, ha, 4122 "region #0 not an MMIO resource, aborting\n"); 4123 4124 goto iospace_error_exit; 4125 } 4126 4127 if (mmio_len < MIN_IOBASE_LEN) { 4128 ql4_printk(KERN_ERR, ha, 4129 "Invalid PCI mem region size, aborting\n"); 4130 goto iospace_error_exit; 4131 } 4132 4133 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 4134 ql4_printk(KERN_WARNING, ha, 4135 "Failed to reserve PIO/MMIO regions\n"); 4136 4137 goto iospace_error_exit; 4138 } 4139 4140 ha->pio_address = pio; 4141 ha->pio_length = pio_len; 4142 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 4143 if (!ha->reg) { 4144 ql4_printk(KERN_ERR, ha, 4145 "cannot remap MMIO, aborting\n"); 4146 4147 goto iospace_error_exit; 4148 } 4149 4150 return 0; 4151 4152 iospace_error_exit: 4153 return -ENOMEM; 4154 } 4155 4156 static struct isp_operations qla4xxx_isp_ops = { 4157 .iospace_config = qla4xxx_iospace_config, 4158 .pci_config = qla4xxx_pci_config, 4159 .disable_intrs = qla4xxx_disable_intrs, 4160 .enable_intrs = qla4xxx_enable_intrs, 4161 .start_firmware = qla4xxx_start_firmware, 4162 .intr_handler = qla4xxx_intr_handler, 4163 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 4164 .reset_chip = qla4xxx_soft_reset, 4165 .reset_firmware = qla4xxx_hw_reset, 4166 .queue_iocb = qla4xxx_queue_iocb, 4167 .complete_iocb = qla4xxx_complete_iocb, 4168 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 4169 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 4170 .get_sys_info = qla4xxx_get_sys_info, 4171 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 4172 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 4173 }; 4174 4175 static struct isp_operations qla4_82xx_isp_ops = { 4176 .iospace_config = qla4_8xxx_iospace_config, 4177 .pci_config = qla4_8xxx_pci_config, 4178 .disable_intrs = qla4_82xx_disable_intrs, 4179 .enable_intrs = qla4_82xx_enable_intrs, 4180 .start_firmware = qla4_8xxx_load_risc, 4181 .restart_firmware = qla4_82xx_try_start_fw, 4182 .intr_handler = qla4_82xx_intr_handler, 4183 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 4184 .need_reset = qla4_8xxx_need_reset, 4185 .reset_chip = qla4_82xx_isp_reset, 4186 .reset_firmware = qla4_8xxx_stop_firmware, 4187 .queue_iocb = qla4_82xx_queue_iocb, 4188 .complete_iocb = qla4_82xx_complete_iocb, 4189 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 4190 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 4191 .get_sys_info = qla4_8xxx_get_sys_info, 4192 .rd_reg_direct = qla4_82xx_rd_32, 4193 .wr_reg_direct = qla4_82xx_wr_32, 4194 .rd_reg_indirect = qla4_82xx_md_rd_32, 4195 .wr_reg_indirect = qla4_82xx_md_wr_32, 4196 .idc_lock = qla4_82xx_idc_lock, 4197 .idc_unlock = qla4_82xx_idc_unlock, 4198 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 4199 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 4200 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 4201 }; 4202 4203 static struct isp_operations qla4_83xx_isp_ops = { 4204 .iospace_config = qla4_8xxx_iospace_config, 4205 .pci_config = qla4_8xxx_pci_config, 4206 .disable_intrs = qla4_83xx_disable_intrs, 4207 .enable_intrs = qla4_83xx_enable_intrs, 4208 .start_firmware = qla4_8xxx_load_risc, 4209 .restart_firmware = qla4_83xx_start_firmware, 4210 .intr_handler = qla4_83xx_intr_handler, 4211 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 4212 .need_reset = qla4_8xxx_need_reset, 4213 .reset_chip = qla4_83xx_isp_reset, 4214 .reset_firmware = qla4_8xxx_stop_firmware, 4215 .queue_iocb = qla4_83xx_queue_iocb, 4216 .complete_iocb = qla4_83xx_complete_iocb, 4217 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 4218 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 4219 .get_sys_info = qla4_8xxx_get_sys_info, 4220 .rd_reg_direct = qla4_83xx_rd_reg, 4221 .wr_reg_direct = qla4_83xx_wr_reg, 4222 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 4223 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 4224 .idc_lock = qla4_83xx_drv_lock, 4225 .idc_unlock = qla4_83xx_drv_unlock, 4226 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 4227 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 4228 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 4229 }; 4230 4231 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 4232 { 4233 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 4234 } 4235 4236 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 4237 { 4238 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 4239 } 4240 4241 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 4242 { 4243 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 4244 } 4245 4246 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 4247 { 4248 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 4249 } 4250 4251 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 4252 { 4253 struct scsi_qla_host *ha = data; 4254 char *str = buf; 4255 int rc; 4256 4257 switch (type) { 4258 case ISCSI_BOOT_ETH_FLAGS: 4259 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 4260 break; 4261 case ISCSI_BOOT_ETH_INDEX: 4262 rc = sprintf(str, "0\n"); 4263 break; 4264 case ISCSI_BOOT_ETH_MAC: 4265 rc = sysfs_format_mac(str, ha->my_mac, 4266 MAC_ADDR_LEN); 4267 break; 4268 default: 4269 rc = -ENOSYS; 4270 break; 4271 } 4272 return rc; 4273 } 4274 4275 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 4276 { 4277 int rc; 4278 4279 switch (type) { 4280 case ISCSI_BOOT_ETH_FLAGS: 4281 case ISCSI_BOOT_ETH_MAC: 4282 case ISCSI_BOOT_ETH_INDEX: 4283 rc = S_IRUGO; 4284 break; 4285 default: 4286 rc = 0; 4287 break; 4288 } 4289 return rc; 4290 } 4291 4292 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 4293 { 4294 struct scsi_qla_host *ha = data; 4295 char *str = buf; 4296 int rc; 4297 4298 switch (type) { 4299 case ISCSI_BOOT_INI_INITIATOR_NAME: 4300 rc = sprintf(str, "%s\n", ha->name_string); 4301 break; 4302 default: 4303 rc = -ENOSYS; 4304 break; 4305 } 4306 return rc; 4307 } 4308 4309 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 4310 { 4311 int rc; 4312 4313 switch (type) { 4314 case ISCSI_BOOT_INI_INITIATOR_NAME: 4315 rc = S_IRUGO; 4316 break; 4317 default: 4318 rc = 0; 4319 break; 4320 } 4321 return rc; 4322 } 4323 4324 static ssize_t 4325 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 4326 char *buf) 4327 { 4328 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 4329 char *str = buf; 4330 int rc; 4331 4332 switch (type) { 4333 case ISCSI_BOOT_TGT_NAME: 4334 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 4335 break; 4336 case ISCSI_BOOT_TGT_IP_ADDR: 4337 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 4338 rc = sprintf(buf, "%pI4\n", 4339 &boot_conn->dest_ipaddr.ip_address); 4340 else 4341 rc = sprintf(str, "%pI6\n", 4342 &boot_conn->dest_ipaddr.ip_address); 4343 break; 4344 case ISCSI_BOOT_TGT_PORT: 4345 rc = sprintf(str, "%d\n", boot_conn->dest_port); 4346 break; 4347 case ISCSI_BOOT_TGT_CHAP_NAME: 4348 rc = sprintf(str, "%.*s\n", 4349 boot_conn->chap.target_chap_name_length, 4350 (char *)&boot_conn->chap.target_chap_name); 4351 break; 4352 case ISCSI_BOOT_TGT_CHAP_SECRET: 4353 rc = sprintf(str, "%.*s\n", 4354 boot_conn->chap.target_secret_length, 4355 (char *)&boot_conn->chap.target_secret); 4356 break; 4357 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 4358 rc = sprintf(str, "%.*s\n", 4359 boot_conn->chap.intr_chap_name_length, 4360 (char *)&boot_conn->chap.intr_chap_name); 4361 break; 4362 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 4363 rc = sprintf(str, "%.*s\n", 4364 boot_conn->chap.intr_secret_length, 4365 (char *)&boot_conn->chap.intr_secret); 4366 break; 4367 case ISCSI_BOOT_TGT_FLAGS: 4368 rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 4369 break; 4370 case ISCSI_BOOT_TGT_NIC_ASSOC: 4371 rc = sprintf(str, "0\n"); 4372 break; 4373 default: 4374 rc = -ENOSYS; 4375 break; 4376 } 4377 return rc; 4378 } 4379 4380 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 4381 { 4382 struct scsi_qla_host *ha = data; 4383 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 4384 4385 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 4386 } 4387 4388 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 4389 { 4390 struct scsi_qla_host *ha = data; 4391 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 4392 4393 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 4394 } 4395 4396 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 4397 { 4398 int rc; 4399 4400 switch (type) { 4401 case ISCSI_BOOT_TGT_NAME: 4402 case ISCSI_BOOT_TGT_IP_ADDR: 4403 case ISCSI_BOOT_TGT_PORT: 4404 case ISCSI_BOOT_TGT_CHAP_NAME: 4405 case ISCSI_BOOT_TGT_CHAP_SECRET: 4406 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 4407 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 4408 case ISCSI_BOOT_TGT_NIC_ASSOC: 4409 case ISCSI_BOOT_TGT_FLAGS: 4410 rc = S_IRUGO; 4411 break; 4412 default: 4413 rc = 0; 4414 break; 4415 } 4416 return rc; 4417 } 4418 4419 static void qla4xxx_boot_release(void *data) 4420 { 4421 struct scsi_qla_host *ha = data; 4422 4423 scsi_host_put(ha->host); 4424 } 4425 4426 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 4427 { 4428 dma_addr_t buf_dma; 4429 uint32_t addr, pri_addr, sec_addr; 4430 uint32_t offset; 4431 uint16_t func_num; 4432 uint8_t val; 4433 uint8_t *buf = NULL; 4434 size_t size = 13 * sizeof(uint8_t); 4435 int ret = QLA_SUCCESS; 4436 4437 func_num = PCI_FUNC(ha->pdev->devfn); 4438 4439 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 4440 __func__, ha->pdev->device, func_num); 4441 4442 if (is_qla40XX(ha)) { 4443 if (func_num == 1) { 4444 addr = NVRAM_PORT0_BOOT_MODE; 4445 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 4446 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 4447 } else if (func_num == 3) { 4448 addr = NVRAM_PORT1_BOOT_MODE; 4449 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 4450 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 4451 } else { 4452 ret = QLA_ERROR; 4453 goto exit_boot_info; 4454 } 4455 4456 /* Check Boot Mode */ 4457 val = rd_nvram_byte(ha, addr); 4458 if (!(val & 0x07)) { 4459 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 4460 "options : 0x%x\n", __func__, val)); 4461 ret = QLA_ERROR; 4462 goto exit_boot_info; 4463 } 4464 4465 /* get primary valid target index */ 4466 val = rd_nvram_byte(ha, pri_addr); 4467 if (val & BIT_7) 4468 ddb_index[0] = (val & 0x7f); 4469 4470 /* get secondary valid target index */ 4471 val = rd_nvram_byte(ha, sec_addr); 4472 if (val & BIT_7) 4473 ddb_index[1] = (val & 0x7f); 4474 4475 } else if (is_qla80XX(ha)) { 4476 buf = dma_alloc_coherent(&ha->pdev->dev, size, 4477 &buf_dma, GFP_KERNEL); 4478 if (!buf) { 4479 DEBUG2(ql4_printk(KERN_ERR, ha, 4480 "%s: Unable to allocate dma buffer\n", 4481 __func__)); 4482 ret = QLA_ERROR; 4483 goto exit_boot_info; 4484 } 4485 4486 if (ha->port_num == 0) 4487 offset = BOOT_PARAM_OFFSET_PORT0; 4488 else if (ha->port_num == 1) 4489 offset = BOOT_PARAM_OFFSET_PORT1; 4490 else { 4491 ret = QLA_ERROR; 4492 goto exit_boot_info_free; 4493 } 4494 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 4495 offset; 4496 if (qla4xxx_get_flash(ha, buf_dma, addr, 4497 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 4498 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 4499 " failed\n", ha->host_no, __func__)); 4500 ret = QLA_ERROR; 4501 goto exit_boot_info_free; 4502 } 4503 /* Check Boot Mode */ 4504 if (!(buf[1] & 0x07)) { 4505 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 4506 " : 0x%x\n", buf[1])); 4507 ret = QLA_ERROR; 4508 goto exit_boot_info_free; 4509 } 4510 4511 /* get primary valid target index */ 4512 if (buf[2] & BIT_7) 4513 ddb_index[0] = buf[2] & 0x7f; 4514 4515 /* get secondary valid target index */ 4516 if (buf[11] & BIT_7) 4517 ddb_index[1] = buf[11] & 0x7f; 4518 } else { 4519 ret = QLA_ERROR; 4520 goto exit_boot_info; 4521 } 4522 4523 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 4524 " target ID %d\n", __func__, ddb_index[0], 4525 ddb_index[1])); 4526 4527 exit_boot_info_free: 4528 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 4529 exit_boot_info: 4530 ha->pri_ddb_idx = ddb_index[0]; 4531 ha->sec_ddb_idx = ddb_index[1]; 4532 return ret; 4533 } 4534 4535 /** 4536 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 4537 * @ha: pointer to adapter structure 4538 * @username: CHAP username to be returned 4539 * @password: CHAP password to be returned 4540 * 4541 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 4542 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 4543 * So from the CHAP cache find the first BIDI CHAP entry and set it 4544 * to the boot record in sysfs. 4545 **/ 4546 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 4547 char *password) 4548 { 4549 int i, ret = -EINVAL; 4550 int max_chap_entries = 0; 4551 struct ql4_chap_table *chap_table; 4552 4553 if (is_qla80XX(ha)) 4554 max_chap_entries = (ha->hw.flt_chap_size / 2) / 4555 sizeof(struct ql4_chap_table); 4556 else 4557 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 4558 4559 if (!ha->chap_list) { 4560 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 4561 return ret; 4562 } 4563 4564 mutex_lock(&ha->chap_sem); 4565 for (i = 0; i < max_chap_entries; i++) { 4566 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 4567 if (chap_table->cookie != 4568 __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 4569 continue; 4570 } 4571 4572 if (chap_table->flags & BIT_7) /* local */ 4573 continue; 4574 4575 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 4576 continue; 4577 4578 strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 4579 strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 4580 ret = 0; 4581 break; 4582 } 4583 mutex_unlock(&ha->chap_sem); 4584 4585 return ret; 4586 } 4587 4588 4589 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 4590 struct ql4_boot_session_info *boot_sess, 4591 uint16_t ddb_index) 4592 { 4593 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 4594 struct dev_db_entry *fw_ddb_entry; 4595 dma_addr_t fw_ddb_entry_dma; 4596 uint16_t idx; 4597 uint16_t options; 4598 int ret = QLA_SUCCESS; 4599 4600 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 4601 &fw_ddb_entry_dma, GFP_KERNEL); 4602 if (!fw_ddb_entry) { 4603 DEBUG2(ql4_printk(KERN_ERR, ha, 4604 "%s: Unable to allocate dma buffer.\n", 4605 __func__)); 4606 ret = QLA_ERROR; 4607 return ret; 4608 } 4609 4610 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 4611 fw_ddb_entry_dma, ddb_index)) { 4612 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 4613 "index [%d]\n", __func__, ddb_index)); 4614 ret = QLA_ERROR; 4615 goto exit_boot_target; 4616 } 4617 4618 /* Update target name and IP from DDB */ 4619 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 4620 min(sizeof(boot_sess->target_name), 4621 sizeof(fw_ddb_entry->iscsi_name))); 4622 4623 options = le16_to_cpu(fw_ddb_entry->options); 4624 if (options & DDB_OPT_IPV6_DEVICE) { 4625 memcpy(&boot_conn->dest_ipaddr.ip_address, 4626 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 4627 } else { 4628 boot_conn->dest_ipaddr.ip_type = 0x1; 4629 memcpy(&boot_conn->dest_ipaddr.ip_address, 4630 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 4631 } 4632 4633 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 4634 4635 /* update chap information */ 4636 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 4637 4638 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 4639 4640 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 4641 4642 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 4643 target_chap_name, 4644 (char *)&boot_conn->chap.target_secret, 4645 idx); 4646 if (ret) { 4647 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 4648 ret = QLA_ERROR; 4649 goto exit_boot_target; 4650 } 4651 4652 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 4653 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 4654 } 4655 4656 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 4657 4658 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 4659 4660 ret = qla4xxx_get_bidi_chap(ha, 4661 (char *)&boot_conn->chap.intr_chap_name, 4662 (char *)&boot_conn->chap.intr_secret); 4663 4664 if (ret) { 4665 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 4666 ret = QLA_ERROR; 4667 goto exit_boot_target; 4668 } 4669 4670 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 4671 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 4672 } 4673 4674 exit_boot_target: 4675 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 4676 fw_ddb_entry, fw_ddb_entry_dma); 4677 return ret; 4678 } 4679 4680 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 4681 { 4682 uint16_t ddb_index[2]; 4683 int ret = QLA_ERROR; 4684 int rval; 4685 4686 memset(ddb_index, 0, sizeof(ddb_index)); 4687 ddb_index[0] = 0xffff; 4688 ddb_index[1] = 0xffff; 4689 ret = get_fw_boot_info(ha, ddb_index); 4690 if (ret != QLA_SUCCESS) { 4691 DEBUG2(ql4_printk(KERN_INFO, ha, 4692 "%s: No boot target configured.\n", __func__)); 4693 return ret; 4694 } 4695 4696 if (ql4xdisablesysfsboot) 4697 return QLA_SUCCESS; 4698 4699 if (ddb_index[0] == 0xffff) 4700 goto sec_target; 4701 4702 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 4703 ddb_index[0]); 4704 if (rval != QLA_SUCCESS) { 4705 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 4706 "configured\n", __func__)); 4707 } else 4708 ret = QLA_SUCCESS; 4709 4710 sec_target: 4711 if (ddb_index[1] == 0xffff) 4712 goto exit_get_boot_info; 4713 4714 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 4715 ddb_index[1]); 4716 if (rval != QLA_SUCCESS) { 4717 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 4718 " configured\n", __func__)); 4719 } else 4720 ret = QLA_SUCCESS; 4721 4722 exit_get_boot_info: 4723 return ret; 4724 } 4725 4726 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 4727 { 4728 struct iscsi_boot_kobj *boot_kobj; 4729 4730 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 4731 return QLA_ERROR; 4732 4733 if (ql4xdisablesysfsboot) { 4734 ql4_printk(KERN_INFO, ha, 4735 "%s: syfsboot disabled - driver will trigger login " 4736 "and publish session for discovery .\n", __func__); 4737 return QLA_SUCCESS; 4738 } 4739 4740 4741 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 4742 if (!ha->boot_kset) 4743 goto kset_free; 4744 4745 if (!scsi_host_get(ha->host)) 4746 goto kset_free; 4747 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 4748 qla4xxx_show_boot_tgt_pri_info, 4749 qla4xxx_tgt_get_attr_visibility, 4750 qla4xxx_boot_release); 4751 if (!boot_kobj) 4752 goto put_host; 4753 4754 if (!scsi_host_get(ha->host)) 4755 goto kset_free; 4756 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 4757 qla4xxx_show_boot_tgt_sec_info, 4758 qla4xxx_tgt_get_attr_visibility, 4759 qla4xxx_boot_release); 4760 if (!boot_kobj) 4761 goto put_host; 4762 4763 if (!scsi_host_get(ha->host)) 4764 goto kset_free; 4765 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 4766 qla4xxx_show_boot_ini_info, 4767 qla4xxx_ini_get_attr_visibility, 4768 qla4xxx_boot_release); 4769 if (!boot_kobj) 4770 goto put_host; 4771 4772 if (!scsi_host_get(ha->host)) 4773 goto kset_free; 4774 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 4775 qla4xxx_show_boot_eth_info, 4776 qla4xxx_eth_get_attr_visibility, 4777 qla4xxx_boot_release); 4778 if (!boot_kobj) 4779 goto put_host; 4780 4781 return QLA_SUCCESS; 4782 4783 put_host: 4784 scsi_host_put(ha->host); 4785 kset_free: 4786 iscsi_boot_destroy_kset(ha->boot_kset); 4787 return -ENOMEM; 4788 } 4789 4790 4791 /** 4792 * qla4xxx_create chap_list - Create CHAP list from FLASH 4793 * @ha: pointer to adapter structure 4794 * 4795 * Read flash and make a list of CHAP entries, during login when a CHAP entry 4796 * is received, it will be checked in this list. If entry exist then the CHAP 4797 * entry index is set in the DDB. If CHAP entry does not exist in this list 4798 * then a new entry is added in FLASH in CHAP table and the index obtained is 4799 * used in the DDB. 4800 **/ 4801 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 4802 { 4803 int rval = 0; 4804 uint8_t *chap_flash_data = NULL; 4805 uint32_t offset; 4806 dma_addr_t chap_dma; 4807 uint32_t chap_size = 0; 4808 4809 if (is_qla40XX(ha)) 4810 chap_size = MAX_CHAP_ENTRIES_40XX * 4811 sizeof(struct ql4_chap_table); 4812 else /* Single region contains CHAP info for both 4813 * ports which is divided into half for each port. 4814 */ 4815 chap_size = ha->hw.flt_chap_size / 2; 4816 4817 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 4818 &chap_dma, GFP_KERNEL); 4819 if (!chap_flash_data) { 4820 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 4821 return; 4822 } 4823 if (is_qla40XX(ha)) 4824 offset = FLASH_CHAP_OFFSET; 4825 else { 4826 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 4827 if (ha->port_num == 1) 4828 offset += chap_size; 4829 } 4830 4831 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 4832 if (rval != QLA_SUCCESS) 4833 goto exit_chap_list; 4834 4835 if (ha->chap_list == NULL) 4836 ha->chap_list = vmalloc(chap_size); 4837 if (ha->chap_list == NULL) { 4838 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 4839 goto exit_chap_list; 4840 } 4841 4842 memcpy(ha->chap_list, chap_flash_data, chap_size); 4843 4844 exit_chap_list: 4845 dma_free_coherent(&ha->pdev->dev, chap_size, 4846 chap_flash_data, chap_dma); 4847 } 4848 4849 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 4850 struct ql4_tuple_ddb *tddb) 4851 { 4852 struct scsi_qla_host *ha; 4853 struct iscsi_cls_session *cls_sess; 4854 struct iscsi_cls_conn *cls_conn; 4855 struct iscsi_session *sess; 4856 struct iscsi_conn *conn; 4857 4858 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 4859 ha = ddb_entry->ha; 4860 cls_sess = ddb_entry->sess; 4861 sess = cls_sess->dd_data; 4862 cls_conn = ddb_entry->conn; 4863 conn = cls_conn->dd_data; 4864 4865 tddb->tpgt = sess->tpgt; 4866 tddb->port = conn->persistent_port; 4867 strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 4868 strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 4869 } 4870 4871 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 4872 struct ql4_tuple_ddb *tddb, 4873 uint8_t *flash_isid) 4874 { 4875 uint16_t options = 0; 4876 4877 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 4878 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 4879 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 4880 4881 options = le16_to_cpu(fw_ddb_entry->options); 4882 if (options & DDB_OPT_IPV6_DEVICE) 4883 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 4884 else 4885 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 4886 4887 tddb->port = le16_to_cpu(fw_ddb_entry->port); 4888 4889 if (flash_isid == NULL) 4890 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 4891 sizeof(tddb->isid)); 4892 else 4893 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 4894 } 4895 4896 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 4897 struct ql4_tuple_ddb *old_tddb, 4898 struct ql4_tuple_ddb *new_tddb, 4899 uint8_t is_isid_compare) 4900 { 4901 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 4902 return QLA_ERROR; 4903 4904 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 4905 return QLA_ERROR; 4906 4907 if (old_tddb->port != new_tddb->port) 4908 return QLA_ERROR; 4909 4910 /* For multi sessions, driver generates the ISID, so do not compare 4911 * ISID in reset path since it would be a comparison between the 4912 * driver generated ISID and firmware generated ISID. This could 4913 * lead to adding duplicated DDBs in the list as driver generated 4914 * ISID would not match firmware generated ISID. 4915 */ 4916 if (is_isid_compare) { 4917 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: old ISID [%02x%02x%02x" 4918 "%02x%02x%02x] New ISID [%02x%02x%02x%02x%02x%02x]\n", 4919 __func__, old_tddb->isid[5], old_tddb->isid[4], 4920 old_tddb->isid[3], old_tddb->isid[2], old_tddb->isid[1], 4921 old_tddb->isid[0], new_tddb->isid[5], new_tddb->isid[4], 4922 new_tddb->isid[3], new_tddb->isid[2], new_tddb->isid[1], 4923 new_tddb->isid[0])); 4924 4925 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 4926 sizeof(old_tddb->isid))) 4927 return QLA_ERROR; 4928 } 4929 4930 DEBUG2(ql4_printk(KERN_INFO, ha, 4931 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 4932 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 4933 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 4934 new_tddb->ip_addr, new_tddb->iscsi_name)); 4935 4936 return QLA_SUCCESS; 4937 } 4938 4939 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 4940 struct dev_db_entry *fw_ddb_entry) 4941 { 4942 struct ddb_entry *ddb_entry; 4943 struct ql4_tuple_ddb *fw_tddb = NULL; 4944 struct ql4_tuple_ddb *tmp_tddb = NULL; 4945 int idx; 4946 int ret = QLA_ERROR; 4947 4948 fw_tddb = vzalloc(sizeof(*fw_tddb)); 4949 if (!fw_tddb) { 4950 DEBUG2(ql4_printk(KERN_WARNING, ha, 4951 "Memory Allocation failed.\n")); 4952 ret = QLA_SUCCESS; 4953 goto exit_check; 4954 } 4955 4956 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 4957 if (!tmp_tddb) { 4958 DEBUG2(ql4_printk(KERN_WARNING, ha, 4959 "Memory Allocation failed.\n")); 4960 ret = QLA_SUCCESS; 4961 goto exit_check; 4962 } 4963 4964 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 4965 4966 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 4967 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 4968 if (ddb_entry == NULL) 4969 continue; 4970 4971 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 4972 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 4973 ret = QLA_SUCCESS; /* found */ 4974 goto exit_check; 4975 } 4976 } 4977 4978 exit_check: 4979 if (fw_tddb) 4980 vfree(fw_tddb); 4981 if (tmp_tddb) 4982 vfree(tmp_tddb); 4983 return ret; 4984 } 4985 4986 /** 4987 * qla4xxx_check_existing_isid - check if target with same isid exist 4988 * in target list 4989 * @list_nt: list of target 4990 * @isid: isid to check 4991 * 4992 * This routine return QLA_SUCCESS if target with same isid exist 4993 **/ 4994 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 4995 { 4996 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 4997 struct dev_db_entry *fw_ddb_entry; 4998 4999 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 5000 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 5001 5002 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 5003 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 5004 return QLA_SUCCESS; 5005 } 5006 } 5007 return QLA_ERROR; 5008 } 5009 5010 /** 5011 * qla4xxx_update_isid - compare ddbs and updated isid 5012 * @ha: Pointer to host adapter structure. 5013 * @list_nt: list of nt target 5014 * @fw_ddb_entry: firmware ddb entry 5015 * 5016 * This routine update isid if ddbs have same iqn, same isid and 5017 * different IP addr. 5018 * Return QLA_SUCCESS if isid is updated. 5019 **/ 5020 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 5021 struct list_head *list_nt, 5022 struct dev_db_entry *fw_ddb_entry) 5023 { 5024 uint8_t base_value, i; 5025 5026 base_value = fw_ddb_entry->isid[1] & 0x1f; 5027 for (i = 0; i < 8; i++) { 5028 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 5029 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 5030 break; 5031 } 5032 5033 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 5034 return QLA_ERROR; 5035 5036 return QLA_SUCCESS; 5037 } 5038 5039 /** 5040 * qla4xxx_should_update_isid - check if isid need to update 5041 * @ha: Pointer to host adapter structure. 5042 * @old_tddb: ddb tuple 5043 * @new_tddb: ddb tuple 5044 * 5045 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 5046 * same isid 5047 **/ 5048 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 5049 struct ql4_tuple_ddb *old_tddb, 5050 struct ql4_tuple_ddb *new_tddb) 5051 { 5052 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 5053 /* Same ip */ 5054 if (old_tddb->port == new_tddb->port) 5055 return QLA_ERROR; 5056 } 5057 5058 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 5059 /* different iqn */ 5060 return QLA_ERROR; 5061 5062 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 5063 sizeof(old_tddb->isid))) 5064 /* different isid */ 5065 return QLA_ERROR; 5066 5067 return QLA_SUCCESS; 5068 } 5069 5070 /** 5071 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 5072 * @ha: Pointer to host adapter structure. 5073 * @list_nt: list of nt target. 5074 * @fw_ddb_entry: firmware ddb entry. 5075 * 5076 * This routine check if fw_ddb_entry already exists in list_nt to avoid 5077 * duplicate ddb in list_nt. 5078 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 5079 * Note: This function also update isid of DDB if required. 5080 **/ 5081 5082 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 5083 struct list_head *list_nt, 5084 struct dev_db_entry *fw_ddb_entry) 5085 { 5086 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 5087 struct ql4_tuple_ddb *fw_tddb = NULL; 5088 struct ql4_tuple_ddb *tmp_tddb = NULL; 5089 int rval, ret = QLA_ERROR; 5090 5091 fw_tddb = vzalloc(sizeof(*fw_tddb)); 5092 if (!fw_tddb) { 5093 DEBUG2(ql4_printk(KERN_WARNING, ha, 5094 "Memory Allocation failed.\n")); 5095 ret = QLA_SUCCESS; 5096 goto exit_check; 5097 } 5098 5099 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 5100 if (!tmp_tddb) { 5101 DEBUG2(ql4_printk(KERN_WARNING, ha, 5102 "Memory Allocation failed.\n")); 5103 ret = QLA_SUCCESS; 5104 goto exit_check; 5105 } 5106 5107 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 5108 5109 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 5110 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 5111 nt_ddb_idx->flash_isid); 5112 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 5113 /* found duplicate ddb */ 5114 if (ret == QLA_SUCCESS) 5115 goto exit_check; 5116 } 5117 5118 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 5119 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 5120 5121 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 5122 if (ret == QLA_SUCCESS) { 5123 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 5124 if (rval == QLA_SUCCESS) 5125 ret = QLA_ERROR; 5126 else 5127 ret = QLA_SUCCESS; 5128 5129 goto exit_check; 5130 } 5131 } 5132 5133 exit_check: 5134 if (fw_tddb) 5135 vfree(fw_tddb); 5136 if (tmp_tddb) 5137 vfree(tmp_tddb); 5138 return ret; 5139 } 5140 5141 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 5142 { 5143 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 5144 5145 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 5146 list_del_init(&ddb_idx->list); 5147 vfree(ddb_idx); 5148 } 5149 } 5150 5151 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 5152 struct dev_db_entry *fw_ddb_entry) 5153 { 5154 struct iscsi_endpoint *ep; 5155 struct sockaddr_in *addr; 5156 struct sockaddr_in6 *addr6; 5157 struct sockaddr *t_addr; 5158 struct sockaddr_storage *dst_addr; 5159 char *ip; 5160 5161 /* TODO: need to destroy on unload iscsi_endpoint*/ 5162 dst_addr = vmalloc(sizeof(*dst_addr)); 5163 if (!dst_addr) 5164 return NULL; 5165 5166 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 5167 t_addr = (struct sockaddr *)dst_addr; 5168 t_addr->sa_family = AF_INET6; 5169 addr6 = (struct sockaddr_in6 *)dst_addr; 5170 ip = (char *)&addr6->sin6_addr; 5171 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 5172 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 5173 5174 } else { 5175 t_addr = (struct sockaddr *)dst_addr; 5176 t_addr->sa_family = AF_INET; 5177 addr = (struct sockaddr_in *)dst_addr; 5178 ip = (char *)&addr->sin_addr; 5179 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 5180 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 5181 } 5182 5183 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 5184 vfree(dst_addr); 5185 return ep; 5186 } 5187 5188 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 5189 { 5190 if (ql4xdisablesysfsboot) 5191 return QLA_SUCCESS; 5192 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 5193 return QLA_ERROR; 5194 return QLA_SUCCESS; 5195 } 5196 5197 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 5198 struct ddb_entry *ddb_entry, 5199 uint16_t idx) 5200 { 5201 uint16_t def_timeout; 5202 5203 ddb_entry->ddb_type = FLASH_DDB; 5204 ddb_entry->fw_ddb_index = INVALID_ENTRY; 5205 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 5206 ddb_entry->ha = ha; 5207 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 5208 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 5209 5210 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 5211 atomic_set(&ddb_entry->relogin_timer, 0); 5212 atomic_set(&ddb_entry->relogin_retry_count, 0); 5213 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 5214 ddb_entry->default_relogin_timeout = 5215 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 5216 def_timeout : LOGIN_TOV; 5217 ddb_entry->default_time2wait = 5218 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 5219 5220 if (ql4xdisablesysfsboot && 5221 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 5222 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 5223 } 5224 5225 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 5226 { 5227 uint32_t idx = 0; 5228 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 5229 uint32_t sts[MBOX_REG_COUNT]; 5230 uint32_t ip_state; 5231 unsigned long wtime; 5232 int ret; 5233 5234 wtime = jiffies + (HZ * IP_CONFIG_TOV); 5235 do { 5236 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 5237 if (ip_idx[idx] == -1) 5238 continue; 5239 5240 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 5241 5242 if (ret == QLA_ERROR) { 5243 ip_idx[idx] = -1; 5244 continue; 5245 } 5246 5247 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 5248 5249 DEBUG2(ql4_printk(KERN_INFO, ha, 5250 "Waiting for IP state for idx = %d, state = 0x%x\n", 5251 ip_idx[idx], ip_state)); 5252 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 5253 ip_state == IP_ADDRSTATE_INVALID || 5254 ip_state == IP_ADDRSTATE_PREFERRED || 5255 ip_state == IP_ADDRSTATE_DEPRICATED || 5256 ip_state == IP_ADDRSTATE_DISABLING) 5257 ip_idx[idx] = -1; 5258 } 5259 5260 /* Break if all IP states checked */ 5261 if ((ip_idx[0] == -1) && 5262 (ip_idx[1] == -1) && 5263 (ip_idx[2] == -1) && 5264 (ip_idx[3] == -1)) 5265 break; 5266 schedule_timeout_uninterruptible(HZ); 5267 } while (time_after(wtime, jiffies)); 5268 } 5269 5270 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 5271 struct list_head *list_st) 5272 { 5273 struct qla_ddb_index *st_ddb_idx; 5274 int max_ddbs; 5275 int fw_idx_size; 5276 struct dev_db_entry *fw_ddb_entry; 5277 dma_addr_t fw_ddb_dma; 5278 int ret; 5279 uint32_t idx = 0, next_idx = 0; 5280 uint32_t state = 0, conn_err = 0; 5281 uint16_t conn_id = 0; 5282 5283 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 5284 &fw_ddb_dma); 5285 if (fw_ddb_entry == NULL) { 5286 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 5287 goto exit_st_list; 5288 } 5289 5290 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 5291 MAX_DEV_DB_ENTRIES; 5292 fw_idx_size = sizeof(struct qla_ddb_index); 5293 5294 for (idx = 0; idx < max_ddbs; idx = next_idx) { 5295 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 5296 NULL, &next_idx, &state, 5297 &conn_err, NULL, &conn_id); 5298 if (ret == QLA_ERROR) 5299 break; 5300 5301 /* Ignore DDB if invalid state (unassigned) */ 5302 if (state == DDB_DS_UNASSIGNED) 5303 goto continue_next_st; 5304 5305 /* Check if ST, add to the list_st */ 5306 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 5307 goto continue_next_st; 5308 5309 st_ddb_idx = vzalloc(fw_idx_size); 5310 if (!st_ddb_idx) 5311 break; 5312 5313 st_ddb_idx->fw_ddb_idx = idx; 5314 5315 list_add_tail(&st_ddb_idx->list, list_st); 5316 continue_next_st: 5317 if (next_idx == 0) 5318 break; 5319 } 5320 5321 exit_st_list: 5322 if (fw_ddb_entry) 5323 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 5324 } 5325 5326 /** 5327 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 5328 * @ha: pointer to adapter structure 5329 * @list_ddb: List from which failed ddb to be removed 5330 * 5331 * Iterate over the list of DDBs and find and remove DDBs that are either in 5332 * no connection active state or failed state 5333 **/ 5334 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 5335 struct list_head *list_ddb) 5336 { 5337 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 5338 uint32_t next_idx = 0; 5339 uint32_t state = 0, conn_err = 0; 5340 int ret; 5341 5342 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 5343 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 5344 NULL, 0, NULL, &next_idx, &state, 5345 &conn_err, NULL, NULL); 5346 if (ret == QLA_ERROR) 5347 continue; 5348 5349 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 5350 state == DDB_DS_SESSION_FAILED) { 5351 list_del_init(&ddb_idx->list); 5352 vfree(ddb_idx); 5353 } 5354 } 5355 } 5356 5357 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 5358 struct dev_db_entry *fw_ddb_entry, 5359 int is_reset, uint16_t idx) 5360 { 5361 struct iscsi_cls_session *cls_sess; 5362 struct iscsi_session *sess; 5363 struct iscsi_cls_conn *cls_conn; 5364 struct iscsi_endpoint *ep; 5365 uint16_t cmds_max = 32; 5366 uint16_t conn_id = 0; 5367 uint32_t initial_cmdsn = 0; 5368 int ret = QLA_SUCCESS; 5369 5370 struct ddb_entry *ddb_entry = NULL; 5371 5372 /* Create session object, with INVALID_ENTRY, 5373 * the targer_id would get set when we issue the login 5374 */ 5375 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 5376 cmds_max, sizeof(struct ddb_entry), 5377 sizeof(struct ql4_task_data), 5378 initial_cmdsn, INVALID_ENTRY); 5379 if (!cls_sess) { 5380 ret = QLA_ERROR; 5381 goto exit_setup; 5382 } 5383 5384 /* 5385 * so calling module_put function to decrement the 5386 * reference count. 5387 **/ 5388 module_put(qla4xxx_iscsi_transport.owner); 5389 sess = cls_sess->dd_data; 5390 ddb_entry = sess->dd_data; 5391 ddb_entry->sess = cls_sess; 5392 5393 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 5394 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 5395 sizeof(struct dev_db_entry)); 5396 5397 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 5398 5399 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 5400 5401 if (!cls_conn) { 5402 ret = QLA_ERROR; 5403 goto exit_setup; 5404 } 5405 5406 ddb_entry->conn = cls_conn; 5407 5408 /* Setup ep, for displaying attributes in sysfs */ 5409 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 5410 if (ep) { 5411 ep->conn = cls_conn; 5412 cls_conn->ep = ep; 5413 } else { 5414 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 5415 ret = QLA_ERROR; 5416 goto exit_setup; 5417 } 5418 5419 /* Update sess/conn params */ 5420 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 5421 5422 if (is_reset == RESET_ADAPTER) { 5423 iscsi_block_session(cls_sess); 5424 /* Use the relogin path to discover new devices 5425 * by short-circuting the logic of setting 5426 * timer to relogin - instead set the flags 5427 * to initiate login right away. 5428 */ 5429 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 5430 set_bit(DF_RELOGIN, &ddb_entry->flags); 5431 } 5432 5433 exit_setup: 5434 return ret; 5435 } 5436 5437 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 5438 struct list_head *list_nt, int is_reset) 5439 { 5440 struct dev_db_entry *fw_ddb_entry; 5441 dma_addr_t fw_ddb_dma; 5442 int max_ddbs; 5443 int fw_idx_size; 5444 int ret; 5445 uint32_t idx = 0, next_idx = 0; 5446 uint32_t state = 0, conn_err = 0; 5447 uint16_t conn_id = 0; 5448 struct qla_ddb_index *nt_ddb_idx; 5449 5450 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 5451 &fw_ddb_dma); 5452 if (fw_ddb_entry == NULL) { 5453 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 5454 goto exit_nt_list; 5455 } 5456 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 5457 MAX_DEV_DB_ENTRIES; 5458 fw_idx_size = sizeof(struct qla_ddb_index); 5459 5460 for (idx = 0; idx < max_ddbs; idx = next_idx) { 5461 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 5462 NULL, &next_idx, &state, 5463 &conn_err, NULL, &conn_id); 5464 if (ret == QLA_ERROR) 5465 break; 5466 5467 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 5468 goto continue_next_nt; 5469 5470 /* Check if NT, then add to list it */ 5471 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 5472 goto continue_next_nt; 5473 5474 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 5475 state == DDB_DS_SESSION_FAILED)) 5476 goto continue_next_nt; 5477 5478 DEBUG2(ql4_printk(KERN_INFO, ha, 5479 "Adding DDB to session = 0x%x\n", idx)); 5480 if (is_reset == INIT_ADAPTER) { 5481 nt_ddb_idx = vmalloc(fw_idx_size); 5482 if (!nt_ddb_idx) 5483 break; 5484 5485 nt_ddb_idx->fw_ddb_idx = idx; 5486 5487 /* Copy original isid as it may get updated in function 5488 * qla4xxx_update_isid(). We need original isid in 5489 * function qla4xxx_compare_tuple_ddb to find duplicate 5490 * target */ 5491 memcpy(&nt_ddb_idx->flash_isid[0], 5492 &fw_ddb_entry->isid[0], 5493 sizeof(nt_ddb_idx->flash_isid)); 5494 5495 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 5496 fw_ddb_entry); 5497 if (ret == QLA_SUCCESS) { 5498 /* free nt_ddb_idx and do not add to list_nt */ 5499 vfree(nt_ddb_idx); 5500 goto continue_next_nt; 5501 } 5502 5503 /* Copy updated isid */ 5504 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 5505 sizeof(struct dev_db_entry)); 5506 5507 list_add_tail(&nt_ddb_idx->list, list_nt); 5508 } else if (is_reset == RESET_ADAPTER) { 5509 if (qla4xxx_is_session_exists(ha, fw_ddb_entry) == 5510 QLA_SUCCESS) 5511 goto continue_next_nt; 5512 } 5513 5514 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 5515 if (ret == QLA_ERROR) 5516 goto exit_nt_list; 5517 5518 continue_next_nt: 5519 if (next_idx == 0) 5520 break; 5521 } 5522 5523 exit_nt_list: 5524 if (fw_ddb_entry) 5525 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 5526 } 5527 5528 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 5529 struct list_head *list_nt) 5530 { 5531 struct dev_db_entry *fw_ddb_entry; 5532 dma_addr_t fw_ddb_dma; 5533 int max_ddbs; 5534 int fw_idx_size; 5535 int ret; 5536 uint32_t idx = 0, next_idx = 0; 5537 uint32_t state = 0, conn_err = 0; 5538 uint16_t conn_id = 0; 5539 struct qla_ddb_index *nt_ddb_idx; 5540 5541 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 5542 &fw_ddb_dma); 5543 if (fw_ddb_entry == NULL) { 5544 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 5545 goto exit_new_nt_list; 5546 } 5547 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 5548 MAX_DEV_DB_ENTRIES; 5549 fw_idx_size = sizeof(struct qla_ddb_index); 5550 5551 for (idx = 0; idx < max_ddbs; idx = next_idx) { 5552 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 5553 NULL, &next_idx, &state, 5554 &conn_err, NULL, &conn_id); 5555 if (ret == QLA_ERROR) 5556 break; 5557 5558 /* Check if NT, then add it to list */ 5559 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 5560 goto continue_next_new_nt; 5561 5562 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 5563 goto continue_next_new_nt; 5564 5565 DEBUG2(ql4_printk(KERN_INFO, ha, 5566 "Adding DDB to session = 0x%x\n", idx)); 5567 5568 nt_ddb_idx = vmalloc(fw_idx_size); 5569 if (!nt_ddb_idx) 5570 break; 5571 5572 nt_ddb_idx->fw_ddb_idx = idx; 5573 5574 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry); 5575 if (ret == QLA_SUCCESS) { 5576 /* free nt_ddb_idx and do not add to list_nt */ 5577 vfree(nt_ddb_idx); 5578 goto continue_next_new_nt; 5579 } 5580 5581 list_add_tail(&nt_ddb_idx->list, list_nt); 5582 5583 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 5584 idx); 5585 if (ret == QLA_ERROR) 5586 goto exit_new_nt_list; 5587 5588 continue_next_new_nt: 5589 if (next_idx == 0) 5590 break; 5591 } 5592 5593 exit_new_nt_list: 5594 if (fw_ddb_entry) 5595 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 5596 } 5597 5598 /** 5599 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 5600 * @dev: dev associated with the sysfs entry 5601 * @data: pointer to flashnode session object 5602 * 5603 * Returns: 5604 * 1: if flashnode entry is non-persistent 5605 * 0: if flashnode entry is persistent 5606 **/ 5607 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) 5608 { 5609 struct iscsi_bus_flash_session *fnode_sess; 5610 5611 if (!iscsi_flashnode_bus_match(dev, NULL)) 5612 return 0; 5613 5614 fnode_sess = iscsi_dev_to_flash_session(dev); 5615 5616 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 5617 } 5618 5619 /** 5620 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 5621 * @ha: pointer to host 5622 * @fw_ddb_entry: flash ddb data 5623 * @idx: target index 5624 * @user: if set then this call is made from userland else from kernel 5625 * 5626 * Returns: 5627 * On sucess: QLA_SUCCESS 5628 * On failure: QLA_ERROR 5629 * 5630 * This create separate sysfs entries for session and connection attributes of 5631 * the given fw ddb entry. 5632 * If this is invoked as a result of a userspace call then the entry is marked 5633 * as nonpersistent using flash_state field. 5634 **/ 5635 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 5636 struct dev_db_entry *fw_ddb_entry, 5637 uint16_t *idx, int user) 5638 { 5639 struct iscsi_bus_flash_session *fnode_sess = NULL; 5640 struct iscsi_bus_flash_conn *fnode_conn = NULL; 5641 int rc = QLA_ERROR; 5642 5643 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 5644 &qla4xxx_iscsi_transport, 0); 5645 if (!fnode_sess) { 5646 ql4_printk(KERN_ERR, ha, 5647 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 5648 __func__, *idx, ha->host_no); 5649 goto exit_tgt_create; 5650 } 5651 5652 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 5653 &qla4xxx_iscsi_transport, 0); 5654 if (!fnode_conn) { 5655 ql4_printk(KERN_ERR, ha, 5656 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 5657 __func__, *idx, ha->host_no); 5658 goto free_sess; 5659 } 5660 5661 if (user) { 5662 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 5663 } else { 5664 fnode_sess->flash_state = DEV_DB_PERSISTENT; 5665 5666 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 5667 fnode_sess->is_boot_target = 1; 5668 else 5669 fnode_sess->is_boot_target = 0; 5670 } 5671 5672 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 5673 fw_ddb_entry); 5674 5675 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 5676 __func__, fnode_sess->dev.kobj.name); 5677 5678 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 5679 __func__, fnode_conn->dev.kobj.name); 5680 5681 return QLA_SUCCESS; 5682 5683 free_sess: 5684 iscsi_destroy_flashnode_sess(fnode_sess); 5685 5686 exit_tgt_create: 5687 return QLA_ERROR; 5688 } 5689 5690 /** 5691 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 5692 * @shost: pointer to host 5693 * @buf: type of ddb entry (ipv4/ipv6) 5694 * @len: length of buf 5695 * 5696 * This creates new ddb entry in the flash by finding first free index and 5697 * storing default ddb there. And then create sysfs entry for the new ddb entry. 5698 **/ 5699 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 5700 int len) 5701 { 5702 struct scsi_qla_host *ha = to_qla_host(shost); 5703 struct dev_db_entry *fw_ddb_entry = NULL; 5704 dma_addr_t fw_ddb_entry_dma; 5705 struct device *dev; 5706 uint16_t idx = 0; 5707 uint16_t max_ddbs = 0; 5708 uint32_t options = 0; 5709 uint32_t rval = QLA_ERROR; 5710 5711 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 5712 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 5713 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 5714 __func__)); 5715 goto exit_ddb_add; 5716 } 5717 5718 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 5719 MAX_DEV_DB_ENTRIES; 5720 5721 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 5722 &fw_ddb_entry_dma, GFP_KERNEL); 5723 if (!fw_ddb_entry) { 5724 DEBUG2(ql4_printk(KERN_ERR, ha, 5725 "%s: Unable to allocate dma buffer\n", 5726 __func__)); 5727 goto exit_ddb_add; 5728 } 5729 5730 dev = iscsi_find_flashnode_sess(ha->host, NULL, 5731 qla4xxx_sysfs_ddb_is_non_persistent); 5732 if (dev) { 5733 ql4_printk(KERN_ERR, ha, 5734 "%s: A non-persistent entry %s found\n", 5735 __func__, dev->kobj.name); 5736 put_device(dev); 5737 goto exit_ddb_add; 5738 } 5739 5740 /* Index 0 and 1 are reserved for boot target entries */ 5741 for (idx = 2; idx < max_ddbs; idx++) { 5742 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 5743 fw_ddb_entry_dma, idx)) 5744 break; 5745 } 5746 5747 if (idx == max_ddbs) 5748 goto exit_ddb_add; 5749 5750 if (!strncasecmp("ipv6", buf, 4)) 5751 options |= IPV6_DEFAULT_DDB_ENTRY; 5752 5753 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 5754 if (rval == QLA_ERROR) 5755 goto exit_ddb_add; 5756 5757 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 5758 5759 exit_ddb_add: 5760 if (fw_ddb_entry) 5761 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 5762 fw_ddb_entry, fw_ddb_entry_dma); 5763 if (rval == QLA_SUCCESS) 5764 return idx; 5765 else 5766 return -EIO; 5767 } 5768 5769 /** 5770 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 5771 * @fnode_sess: pointer to session attrs of flash ddb entry 5772 * @fnode_conn: pointer to connection attrs of flash ddb entry 5773 * 5774 * This writes the contents of target ddb buffer to Flash with a valid cookie 5775 * value in order to make the ddb entry persistent. 5776 **/ 5777 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 5778 struct iscsi_bus_flash_conn *fnode_conn) 5779 { 5780 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 5781 struct scsi_qla_host *ha = to_qla_host(shost); 5782 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 5783 struct dev_db_entry *fw_ddb_entry = NULL; 5784 dma_addr_t fw_ddb_entry_dma; 5785 uint32_t options = 0; 5786 int rval = 0; 5787 5788 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 5789 &fw_ddb_entry_dma, GFP_KERNEL); 5790 if (!fw_ddb_entry) { 5791 DEBUG2(ql4_printk(KERN_ERR, ha, 5792 "%s: Unable to allocate dma buffer\n", 5793 __func__)); 5794 rval = -ENOMEM; 5795 goto exit_ddb_apply; 5796 } 5797 5798 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 5799 options |= IPV6_DEFAULT_DDB_ENTRY; 5800 5801 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 5802 if (rval == QLA_ERROR) 5803 goto exit_ddb_apply; 5804 5805 dev_db_start_offset += (fnode_sess->target_id * 5806 sizeof(*fw_ddb_entry)); 5807 5808 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 5809 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 5810 5811 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 5812 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 5813 5814 if (rval == QLA_SUCCESS) { 5815 fnode_sess->flash_state = DEV_DB_PERSISTENT; 5816 ql4_printk(KERN_INFO, ha, 5817 "%s: flash node %u of host %lu written to flash\n", 5818 __func__, fnode_sess->target_id, ha->host_no); 5819 } else { 5820 rval = -EIO; 5821 ql4_printk(KERN_ERR, ha, 5822 "%s: Error while writing flash node %u of host %lu to flash\n", 5823 __func__, fnode_sess->target_id, ha->host_no); 5824 } 5825 5826 exit_ddb_apply: 5827 if (fw_ddb_entry) 5828 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 5829 fw_ddb_entry, fw_ddb_entry_dma); 5830 return rval; 5831 } 5832 5833 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 5834 struct dev_db_entry *fw_ddb_entry, 5835 uint16_t idx) 5836 { 5837 struct dev_db_entry *ddb_entry = NULL; 5838 dma_addr_t ddb_entry_dma; 5839 unsigned long wtime; 5840 uint32_t mbx_sts = 0; 5841 uint32_t state = 0, conn_err = 0; 5842 uint16_t tmo = 0; 5843 int ret = 0; 5844 5845 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 5846 &ddb_entry_dma, GFP_KERNEL); 5847 if (!ddb_entry) { 5848 DEBUG2(ql4_printk(KERN_ERR, ha, 5849 "%s: Unable to allocate dma buffer\n", 5850 __func__)); 5851 return QLA_ERROR; 5852 } 5853 5854 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 5855 5856 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 5857 if (ret != QLA_SUCCESS) { 5858 DEBUG2(ql4_printk(KERN_ERR, ha, 5859 "%s: Unable to set ddb entry for index %d\n", 5860 __func__, idx)); 5861 goto exit_ddb_conn_open; 5862 } 5863 5864 qla4xxx_conn_open(ha, idx); 5865 5866 /* To ensure that sendtargets is done, wait for at least 12 secs */ 5867 tmo = ((ha->def_timeout > LOGIN_TOV) && 5868 (ha->def_timeout < LOGIN_TOV * 10) ? 5869 ha->def_timeout : LOGIN_TOV); 5870 5871 DEBUG2(ql4_printk(KERN_INFO, ha, 5872 "Default time to wait for login to ddb %d\n", tmo)); 5873 5874 wtime = jiffies + (HZ * tmo); 5875 do { 5876 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 5877 NULL, &state, &conn_err, NULL, 5878 NULL); 5879 if (ret == QLA_ERROR) 5880 continue; 5881 5882 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 5883 state == DDB_DS_SESSION_FAILED) 5884 break; 5885 5886 schedule_timeout_uninterruptible(HZ / 10); 5887 } while (time_after(wtime, jiffies)); 5888 5889 exit_ddb_conn_open: 5890 if (ddb_entry) 5891 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 5892 ddb_entry, ddb_entry_dma); 5893 return ret; 5894 } 5895 5896 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 5897 struct dev_db_entry *fw_ddb_entry) 5898 { 5899 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 5900 struct list_head list_nt; 5901 uint16_t ddb_index; 5902 int ret = 0; 5903 5904 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 5905 ql4_printk(KERN_WARNING, ha, 5906 "%s: A discovery already in progress!\n", __func__); 5907 return QLA_ERROR; 5908 } 5909 5910 INIT_LIST_HEAD(&list_nt); 5911 5912 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 5913 5914 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 5915 if (ret == QLA_ERROR) 5916 goto exit_login_st_clr_bit; 5917 5918 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 5919 if (ret == QLA_ERROR) 5920 goto exit_login_st; 5921 5922 qla4xxx_build_new_nt_list(ha, &list_nt); 5923 5924 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 5925 list_del_init(&ddb_idx->list); 5926 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 5927 vfree(ddb_idx); 5928 } 5929 5930 exit_login_st: 5931 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 5932 ql4_printk(KERN_ERR, ha, 5933 "Unable to clear DDB index = 0x%x\n", ddb_index); 5934 } 5935 5936 clear_bit(ddb_index, ha->ddb_idx_map); 5937 5938 exit_login_st_clr_bit: 5939 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 5940 return ret; 5941 } 5942 5943 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 5944 struct dev_db_entry *fw_ddb_entry, 5945 uint16_t idx) 5946 { 5947 int ret = QLA_ERROR; 5948 5949 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry); 5950 if (ret != QLA_SUCCESS) 5951 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 5952 idx); 5953 else 5954 ret = -EPERM; 5955 5956 return ret; 5957 } 5958 5959 /** 5960 * qla4xxx_sysfs_ddb_login - Login to the specified target 5961 * @fnode_sess: pointer to session attrs of flash ddb entry 5962 * @fnode_conn: pointer to connection attrs of flash ddb entry 5963 * 5964 * This logs in to the specified target 5965 **/ 5966 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 5967 struct iscsi_bus_flash_conn *fnode_conn) 5968 { 5969 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 5970 struct scsi_qla_host *ha = to_qla_host(shost); 5971 struct dev_db_entry *fw_ddb_entry = NULL; 5972 dma_addr_t fw_ddb_entry_dma; 5973 uint32_t options = 0; 5974 int ret = 0; 5975 5976 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 5977 ql4_printk(KERN_ERR, ha, 5978 "%s: Target info is not persistent\n", __func__); 5979 ret = -EIO; 5980 goto exit_ddb_login; 5981 } 5982 5983 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 5984 &fw_ddb_entry_dma, GFP_KERNEL); 5985 if (!fw_ddb_entry) { 5986 DEBUG2(ql4_printk(KERN_ERR, ha, 5987 "%s: Unable to allocate dma buffer\n", 5988 __func__)); 5989 ret = -ENOMEM; 5990 goto exit_ddb_login; 5991 } 5992 5993 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 5994 options |= IPV6_DEFAULT_DDB_ENTRY; 5995 5996 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 5997 if (ret == QLA_ERROR) 5998 goto exit_ddb_login; 5999 6000 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 6001 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 6002 6003 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 6004 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry); 6005 else 6006 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 6007 fnode_sess->target_id); 6008 6009 if (ret > 0) 6010 ret = -EIO; 6011 6012 exit_ddb_login: 6013 if (fw_ddb_entry) 6014 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6015 fw_ddb_entry, fw_ddb_entry_dma); 6016 return ret; 6017 } 6018 6019 /** 6020 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 6021 * @cls_sess: pointer to session to be logged out 6022 * 6023 * This performs session log out from the specified target 6024 **/ 6025 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 6026 { 6027 struct iscsi_session *sess; 6028 struct ddb_entry *ddb_entry = NULL; 6029 struct scsi_qla_host *ha; 6030 struct dev_db_entry *fw_ddb_entry = NULL; 6031 dma_addr_t fw_ddb_entry_dma; 6032 unsigned long flags; 6033 unsigned long wtime; 6034 uint32_t ddb_state; 6035 int options; 6036 int ret = 0; 6037 6038 sess = cls_sess->dd_data; 6039 ddb_entry = sess->dd_data; 6040 ha = ddb_entry->ha; 6041 6042 if (ddb_entry->ddb_type != FLASH_DDB) { 6043 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 6044 __func__); 6045 ret = -ENXIO; 6046 goto exit_ddb_logout; 6047 } 6048 6049 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 6050 ql4_printk(KERN_ERR, ha, 6051 "%s: Logout from boot target entry is not permitted.\n", 6052 __func__); 6053 ret = -EPERM; 6054 goto exit_ddb_logout; 6055 } 6056 6057 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6058 &fw_ddb_entry_dma, GFP_KERNEL); 6059 if (!fw_ddb_entry) { 6060 ql4_printk(KERN_ERR, ha, 6061 "%s: Unable to allocate dma buffer\n", __func__); 6062 ret = -ENOMEM; 6063 goto exit_ddb_logout; 6064 } 6065 6066 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 6067 goto ddb_logout_init; 6068 6069 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 6070 fw_ddb_entry, fw_ddb_entry_dma, 6071 NULL, NULL, &ddb_state, NULL, 6072 NULL, NULL); 6073 if (ret == QLA_ERROR) 6074 goto ddb_logout_init; 6075 6076 if (ddb_state == DDB_DS_SESSION_ACTIVE) 6077 goto ddb_logout_init; 6078 6079 /* wait until next relogin is triggered using DF_RELOGIN and 6080 * clear DF_RELOGIN to avoid invocation of further relogin 6081 */ 6082 wtime = jiffies + (HZ * RELOGIN_TOV); 6083 do { 6084 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 6085 goto ddb_logout_init; 6086 6087 schedule_timeout_uninterruptible(HZ); 6088 } while ((time_after(wtime, jiffies))); 6089 6090 ddb_logout_init: 6091 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6092 atomic_set(&ddb_entry->relogin_timer, 0); 6093 6094 options = LOGOUT_OPTION_CLOSE_SESSION; 6095 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 6096 6097 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 6098 wtime = jiffies + (HZ * LOGOUT_TOV); 6099 do { 6100 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 6101 fw_ddb_entry, fw_ddb_entry_dma, 6102 NULL, NULL, &ddb_state, NULL, 6103 NULL, NULL); 6104 if (ret == QLA_ERROR) 6105 goto ddb_logout_clr_sess; 6106 6107 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 6108 (ddb_state == DDB_DS_SESSION_FAILED)) 6109 goto ddb_logout_clr_sess; 6110 6111 schedule_timeout_uninterruptible(HZ); 6112 } while ((time_after(wtime, jiffies))); 6113 6114 ddb_logout_clr_sess: 6115 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 6116 /* 6117 * we have decremented the reference count of the driver 6118 * when we setup the session to have the driver unload 6119 * to be seamless without actually destroying the 6120 * session 6121 **/ 6122 try_module_get(qla4xxx_iscsi_transport.owner); 6123 iscsi_destroy_endpoint(ddb_entry->conn->ep); 6124 6125 spin_lock_irqsave(&ha->hardware_lock, flags); 6126 qla4xxx_free_ddb(ha, ddb_entry); 6127 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 6128 spin_unlock_irqrestore(&ha->hardware_lock, flags); 6129 6130 iscsi_session_teardown(ddb_entry->sess); 6131 6132 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 6133 ret = QLA_SUCCESS; 6134 6135 exit_ddb_logout: 6136 if (fw_ddb_entry) 6137 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6138 fw_ddb_entry, fw_ddb_entry_dma); 6139 return ret; 6140 } 6141 6142 /** 6143 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 6144 * @fnode_sess: pointer to session attrs of flash ddb entry 6145 * @fnode_conn: pointer to connection attrs of flash ddb entry 6146 * 6147 * This performs log out from the specified target 6148 **/ 6149 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 6150 struct iscsi_bus_flash_conn *fnode_conn) 6151 { 6152 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 6153 struct scsi_qla_host *ha = to_qla_host(shost); 6154 struct ql4_tuple_ddb *flash_tddb = NULL; 6155 struct ql4_tuple_ddb *tmp_tddb = NULL; 6156 struct dev_db_entry *fw_ddb_entry = NULL; 6157 struct ddb_entry *ddb_entry = NULL; 6158 dma_addr_t fw_ddb_dma; 6159 uint32_t next_idx = 0; 6160 uint32_t state = 0, conn_err = 0; 6161 uint16_t conn_id = 0; 6162 int idx, index; 6163 int status, ret = 0; 6164 6165 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6166 &fw_ddb_dma); 6167 if (fw_ddb_entry == NULL) { 6168 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 6169 ret = -ENOMEM; 6170 goto exit_ddb_logout; 6171 } 6172 6173 flash_tddb = vzalloc(sizeof(*flash_tddb)); 6174 if (!flash_tddb) { 6175 ql4_printk(KERN_WARNING, ha, 6176 "%s:Memory Allocation failed.\n", __func__); 6177 ret = -ENOMEM; 6178 goto exit_ddb_logout; 6179 } 6180 6181 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6182 if (!tmp_tddb) { 6183 ql4_printk(KERN_WARNING, ha, 6184 "%s:Memory Allocation failed.\n", __func__); 6185 ret = -ENOMEM; 6186 goto exit_ddb_logout; 6187 } 6188 6189 if (!fnode_sess->targetname) { 6190 ql4_printk(KERN_ERR, ha, 6191 "%s:Cannot logout from SendTarget entry\n", 6192 __func__); 6193 ret = -EPERM; 6194 goto exit_ddb_logout; 6195 } 6196 6197 if (fnode_sess->is_boot_target) { 6198 ql4_printk(KERN_ERR, ha, 6199 "%s: Logout from boot target entry is not permitted.\n", 6200 __func__); 6201 ret = -EPERM; 6202 goto exit_ddb_logout; 6203 } 6204 6205 strncpy(flash_tddb->iscsi_name, fnode_sess->targetname, 6206 ISCSI_NAME_SIZE); 6207 6208 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 6209 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 6210 else 6211 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 6212 6213 flash_tddb->tpgt = fnode_sess->tpgt; 6214 flash_tddb->port = fnode_conn->port; 6215 6216 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 6217 6218 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6219 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6220 if (ddb_entry == NULL) 6221 continue; 6222 6223 if (ddb_entry->ddb_type != FLASH_DDB) 6224 continue; 6225 6226 index = ddb_entry->sess->target_id; 6227 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 6228 fw_ddb_dma, NULL, &next_idx, 6229 &state, &conn_err, NULL, 6230 &conn_id); 6231 if (status == QLA_ERROR) { 6232 ret = -ENOMEM; 6233 break; 6234 } 6235 6236 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 6237 6238 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 6239 true); 6240 if (status == QLA_SUCCESS) { 6241 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 6242 break; 6243 } 6244 } 6245 6246 if (idx == MAX_DDB_ENTRIES) 6247 ret = -ESRCH; 6248 6249 exit_ddb_logout: 6250 if (flash_tddb) 6251 vfree(flash_tddb); 6252 if (tmp_tddb) 6253 vfree(tmp_tddb); 6254 if (fw_ddb_entry) 6255 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6256 6257 return ret; 6258 } 6259 6260 static int 6261 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 6262 int param, char *buf) 6263 { 6264 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 6265 struct scsi_qla_host *ha = to_qla_host(shost); 6266 struct iscsi_bus_flash_conn *fnode_conn; 6267 struct ql4_chap_table chap_tbl; 6268 struct device *dev; 6269 int parent_type; 6270 int rc = 0; 6271 6272 dev = iscsi_find_flashnode_conn(fnode_sess); 6273 if (!dev) 6274 return -EIO; 6275 6276 fnode_conn = iscsi_dev_to_flash_conn(dev); 6277 6278 switch (param) { 6279 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 6280 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 6281 break; 6282 case ISCSI_FLASHNODE_PORTAL_TYPE: 6283 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 6284 break; 6285 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 6286 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 6287 break; 6288 case ISCSI_FLASHNODE_DISCOVERY_SESS: 6289 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 6290 break; 6291 case ISCSI_FLASHNODE_ENTRY_EN: 6292 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 6293 break; 6294 case ISCSI_FLASHNODE_HDR_DGST_EN: 6295 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 6296 break; 6297 case ISCSI_FLASHNODE_DATA_DGST_EN: 6298 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 6299 break; 6300 case ISCSI_FLASHNODE_IMM_DATA_EN: 6301 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 6302 break; 6303 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 6304 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 6305 break; 6306 case ISCSI_FLASHNODE_DATASEQ_INORDER: 6307 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 6308 break; 6309 case ISCSI_FLASHNODE_PDU_INORDER: 6310 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 6311 break; 6312 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 6313 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 6314 break; 6315 case ISCSI_FLASHNODE_SNACK_REQ_EN: 6316 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 6317 break; 6318 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 6319 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 6320 break; 6321 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 6322 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 6323 break; 6324 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 6325 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 6326 break; 6327 case ISCSI_FLASHNODE_ERL: 6328 rc = sprintf(buf, "%u\n", fnode_sess->erl); 6329 break; 6330 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 6331 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 6332 break; 6333 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 6334 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 6335 break; 6336 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 6337 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 6338 break; 6339 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 6340 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 6341 break; 6342 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 6343 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 6344 break; 6345 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 6346 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 6347 break; 6348 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 6349 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 6350 break; 6351 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 6352 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 6353 break; 6354 case ISCSI_FLASHNODE_FIRST_BURST: 6355 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 6356 break; 6357 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 6358 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 6359 break; 6360 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 6361 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 6362 break; 6363 case ISCSI_FLASHNODE_MAX_R2T: 6364 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 6365 break; 6366 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 6367 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 6368 break; 6369 case ISCSI_FLASHNODE_ISID: 6370 rc = sprintf(buf, "%02x%02x%02x%02x%02x%02x\n", 6371 fnode_sess->isid[0], fnode_sess->isid[1], 6372 fnode_sess->isid[2], fnode_sess->isid[3], 6373 fnode_sess->isid[4], fnode_sess->isid[5]); 6374 break; 6375 case ISCSI_FLASHNODE_TSID: 6376 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 6377 break; 6378 case ISCSI_FLASHNODE_PORT: 6379 rc = sprintf(buf, "%d\n", fnode_conn->port); 6380 break; 6381 case ISCSI_FLASHNODE_MAX_BURST: 6382 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 6383 break; 6384 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 6385 rc = sprintf(buf, "%u\n", 6386 fnode_sess->default_taskmgmt_timeout); 6387 break; 6388 case ISCSI_FLASHNODE_IPADDR: 6389 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 6390 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 6391 else 6392 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 6393 break; 6394 case ISCSI_FLASHNODE_ALIAS: 6395 if (fnode_sess->targetalias) 6396 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 6397 else 6398 rc = sprintf(buf, "\n"); 6399 break; 6400 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 6401 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 6402 rc = sprintf(buf, "%pI6\n", 6403 fnode_conn->redirect_ipaddr); 6404 else 6405 rc = sprintf(buf, "%pI4\n", 6406 fnode_conn->redirect_ipaddr); 6407 break; 6408 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 6409 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 6410 break; 6411 case ISCSI_FLASHNODE_LOCAL_PORT: 6412 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 6413 break; 6414 case ISCSI_FLASHNODE_IPV4_TOS: 6415 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 6416 break; 6417 case ISCSI_FLASHNODE_IPV6_TC: 6418 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 6419 rc = sprintf(buf, "%u\n", 6420 fnode_conn->ipv6_traffic_class); 6421 else 6422 rc = sprintf(buf, "\n"); 6423 break; 6424 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 6425 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 6426 break; 6427 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 6428 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 6429 rc = sprintf(buf, "%pI6\n", 6430 fnode_conn->link_local_ipv6_addr); 6431 else 6432 rc = sprintf(buf, "\n"); 6433 break; 6434 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 6435 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 6436 break; 6437 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 6438 if (fnode_sess->discovery_parent_type == DDB_ISNS) 6439 parent_type = ISCSI_DISC_PARENT_ISNS; 6440 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 6441 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 6442 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 6443 parent_type = ISCSI_DISC_PARENT_SENDTGT; 6444 else 6445 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 6446 6447 rc = sprintf(buf, "%s\n", 6448 iscsi_get_discovery_parent_name(parent_type)); 6449 break; 6450 case ISCSI_FLASHNODE_NAME: 6451 if (fnode_sess->targetname) 6452 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 6453 else 6454 rc = sprintf(buf, "\n"); 6455 break; 6456 case ISCSI_FLASHNODE_TPGT: 6457 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 6458 break; 6459 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 6460 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 6461 break; 6462 case ISCSI_FLASHNODE_TCP_RECV_WSF: 6463 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 6464 break; 6465 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 6466 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 6467 break; 6468 case ISCSI_FLASHNODE_USERNAME: 6469 if (fnode_sess->chap_auth_en) { 6470 qla4xxx_get_uni_chap_at_index(ha, 6471 chap_tbl.name, 6472 chap_tbl.secret, 6473 fnode_sess->chap_out_idx); 6474 rc = sprintf(buf, "%s\n", chap_tbl.name); 6475 } else { 6476 rc = sprintf(buf, "\n"); 6477 } 6478 break; 6479 case ISCSI_FLASHNODE_PASSWORD: 6480 if (fnode_sess->chap_auth_en) { 6481 qla4xxx_get_uni_chap_at_index(ha, 6482 chap_tbl.name, 6483 chap_tbl.secret, 6484 fnode_sess->chap_out_idx); 6485 rc = sprintf(buf, "%s\n", chap_tbl.secret); 6486 } else { 6487 rc = sprintf(buf, "\n"); 6488 } 6489 break; 6490 case ISCSI_FLASHNODE_STATSN: 6491 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 6492 break; 6493 case ISCSI_FLASHNODE_EXP_STATSN: 6494 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 6495 break; 6496 case ISCSI_FLASHNODE_IS_BOOT_TGT: 6497 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 6498 break; 6499 default: 6500 rc = -ENOSYS; 6501 break; 6502 } 6503 6504 put_device(dev); 6505 return rc; 6506 } 6507 6508 /** 6509 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 6510 * @fnode_sess: pointer to session attrs of flash ddb entry 6511 * @fnode_conn: pointer to connection attrs of flash ddb entry 6512 * @data: Parameters and their values to update 6513 * @len: len of data 6514 * 6515 * This sets the parameter of flash ddb entry and writes them to flash 6516 **/ 6517 static int 6518 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 6519 struct iscsi_bus_flash_conn *fnode_conn, 6520 void *data, int len) 6521 { 6522 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 6523 struct scsi_qla_host *ha = to_qla_host(shost); 6524 struct iscsi_flashnode_param_info *fnode_param; 6525 struct nlattr *attr; 6526 int rc = QLA_ERROR; 6527 uint32_t rem = len; 6528 6529 nla_for_each_attr(attr, data, len, rem) { 6530 fnode_param = nla_data(attr); 6531 6532 switch (fnode_param->param) { 6533 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 6534 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 6535 break; 6536 case ISCSI_FLASHNODE_PORTAL_TYPE: 6537 memcpy(fnode_sess->portal_type, fnode_param->value, 6538 strlen(fnode_sess->portal_type)); 6539 break; 6540 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 6541 fnode_sess->auto_snd_tgt_disable = 6542 fnode_param->value[0]; 6543 break; 6544 case ISCSI_FLASHNODE_DISCOVERY_SESS: 6545 fnode_sess->discovery_sess = fnode_param->value[0]; 6546 break; 6547 case ISCSI_FLASHNODE_ENTRY_EN: 6548 fnode_sess->entry_state = fnode_param->value[0]; 6549 break; 6550 case ISCSI_FLASHNODE_HDR_DGST_EN: 6551 fnode_conn->hdrdgst_en = fnode_param->value[0]; 6552 break; 6553 case ISCSI_FLASHNODE_DATA_DGST_EN: 6554 fnode_conn->datadgst_en = fnode_param->value[0]; 6555 break; 6556 case ISCSI_FLASHNODE_IMM_DATA_EN: 6557 fnode_sess->imm_data_en = fnode_param->value[0]; 6558 break; 6559 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 6560 fnode_sess->initial_r2t_en = fnode_param->value[0]; 6561 break; 6562 case ISCSI_FLASHNODE_DATASEQ_INORDER: 6563 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 6564 break; 6565 case ISCSI_FLASHNODE_PDU_INORDER: 6566 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 6567 break; 6568 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 6569 fnode_sess->chap_auth_en = fnode_param->value[0]; 6570 break; 6571 case ISCSI_FLASHNODE_SNACK_REQ_EN: 6572 fnode_conn->snack_req_en = fnode_param->value[0]; 6573 break; 6574 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 6575 fnode_sess->discovery_logout_en = fnode_param->value[0]; 6576 break; 6577 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 6578 fnode_sess->bidi_chap_en = fnode_param->value[0]; 6579 break; 6580 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 6581 fnode_sess->discovery_auth_optional = 6582 fnode_param->value[0]; 6583 break; 6584 case ISCSI_FLASHNODE_ERL: 6585 fnode_sess->erl = fnode_param->value[0]; 6586 break; 6587 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 6588 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 6589 break; 6590 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 6591 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 6592 break; 6593 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 6594 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 6595 break; 6596 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 6597 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 6598 break; 6599 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 6600 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 6601 break; 6602 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 6603 fnode_conn->fragment_disable = fnode_param->value[0]; 6604 break; 6605 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 6606 fnode_conn->max_recv_dlength = 6607 *(unsigned *)fnode_param->value; 6608 break; 6609 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 6610 fnode_conn->max_xmit_dlength = 6611 *(unsigned *)fnode_param->value; 6612 break; 6613 case ISCSI_FLASHNODE_FIRST_BURST: 6614 fnode_sess->first_burst = 6615 *(unsigned *)fnode_param->value; 6616 break; 6617 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 6618 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 6619 break; 6620 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 6621 fnode_sess->time2retain = 6622 *(uint16_t *)fnode_param->value; 6623 break; 6624 case ISCSI_FLASHNODE_MAX_R2T: 6625 fnode_sess->max_r2t = 6626 *(uint16_t *)fnode_param->value; 6627 break; 6628 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 6629 fnode_conn->keepalive_timeout = 6630 *(uint16_t *)fnode_param->value; 6631 break; 6632 case ISCSI_FLASHNODE_ISID: 6633 memcpy(fnode_sess->isid, fnode_param->value, 6634 sizeof(fnode_sess->isid)); 6635 break; 6636 case ISCSI_FLASHNODE_TSID: 6637 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 6638 break; 6639 case ISCSI_FLASHNODE_PORT: 6640 fnode_conn->port = *(uint16_t *)fnode_param->value; 6641 break; 6642 case ISCSI_FLASHNODE_MAX_BURST: 6643 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 6644 break; 6645 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 6646 fnode_sess->default_taskmgmt_timeout = 6647 *(uint16_t *)fnode_param->value; 6648 break; 6649 case ISCSI_FLASHNODE_IPADDR: 6650 memcpy(fnode_conn->ipaddress, fnode_param->value, 6651 IPv6_ADDR_LEN); 6652 break; 6653 case ISCSI_FLASHNODE_ALIAS: 6654 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 6655 (char *)fnode_param->value); 6656 break; 6657 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 6658 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 6659 IPv6_ADDR_LEN); 6660 break; 6661 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 6662 fnode_conn->max_segment_size = 6663 *(unsigned *)fnode_param->value; 6664 break; 6665 case ISCSI_FLASHNODE_LOCAL_PORT: 6666 fnode_conn->local_port = 6667 *(uint16_t *)fnode_param->value; 6668 break; 6669 case ISCSI_FLASHNODE_IPV4_TOS: 6670 fnode_conn->ipv4_tos = fnode_param->value[0]; 6671 break; 6672 case ISCSI_FLASHNODE_IPV6_TC: 6673 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 6674 break; 6675 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 6676 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 6677 break; 6678 case ISCSI_FLASHNODE_NAME: 6679 rc = iscsi_switch_str_param(&fnode_sess->targetname, 6680 (char *)fnode_param->value); 6681 break; 6682 case ISCSI_FLASHNODE_TPGT: 6683 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 6684 break; 6685 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 6686 memcpy(fnode_conn->link_local_ipv6_addr, 6687 fnode_param->value, IPv6_ADDR_LEN); 6688 break; 6689 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 6690 fnode_sess->discovery_parent_idx = 6691 *(uint16_t *)fnode_param->value; 6692 break; 6693 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 6694 fnode_conn->tcp_xmit_wsf = 6695 *(uint8_t *)fnode_param->value; 6696 break; 6697 case ISCSI_FLASHNODE_TCP_RECV_WSF: 6698 fnode_conn->tcp_recv_wsf = 6699 *(uint8_t *)fnode_param->value; 6700 break; 6701 case ISCSI_FLASHNODE_STATSN: 6702 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 6703 break; 6704 case ISCSI_FLASHNODE_EXP_STATSN: 6705 fnode_conn->exp_statsn = 6706 *(uint32_t *)fnode_param->value; 6707 break; 6708 default: 6709 ql4_printk(KERN_ERR, ha, 6710 "%s: No such sysfs attribute\n", __func__); 6711 rc = -ENOSYS; 6712 goto exit_set_param; 6713 } 6714 } 6715 6716 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 6717 6718 exit_set_param: 6719 return rc; 6720 } 6721 6722 /** 6723 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 6724 * @fnode_sess: pointer to session attrs of flash ddb entry 6725 * 6726 * This invalidates the flash ddb entry at the given index 6727 **/ 6728 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 6729 { 6730 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 6731 struct scsi_qla_host *ha = to_qla_host(shost); 6732 uint32_t dev_db_start_offset; 6733 uint32_t dev_db_end_offset; 6734 struct dev_db_entry *fw_ddb_entry = NULL; 6735 dma_addr_t fw_ddb_entry_dma; 6736 uint16_t *ddb_cookie = NULL; 6737 size_t ddb_size = 0; 6738 void *pddb = NULL; 6739 int target_id; 6740 int rc = 0; 6741 6742 if (fnode_sess->is_boot_target) { 6743 rc = -EPERM; 6744 DEBUG2(ql4_printk(KERN_ERR, ha, 6745 "%s: Deletion of boot target entry is not permitted.\n", 6746 __func__)); 6747 goto exit_ddb_del; 6748 } 6749 6750 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 6751 goto sysfs_ddb_del; 6752 6753 if (is_qla40XX(ha)) { 6754 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 6755 dev_db_end_offset = FLASH_OFFSET_DB_END; 6756 dev_db_start_offset += (fnode_sess->target_id * 6757 sizeof(*fw_ddb_entry)); 6758 ddb_size = sizeof(*fw_ddb_entry); 6759 } else { 6760 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 6761 (ha->hw.flt_region_ddb << 2); 6762 /* flt_ddb_size is DDB table size for both ports 6763 * so divide it by 2 to calculate the offset for second port 6764 */ 6765 if (ha->port_num == 1) 6766 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 6767 6768 dev_db_end_offset = dev_db_start_offset + 6769 (ha->hw.flt_ddb_size / 2); 6770 6771 dev_db_start_offset += (fnode_sess->target_id * 6772 sizeof(*fw_ddb_entry)); 6773 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 6774 6775 ddb_size = sizeof(*ddb_cookie); 6776 } 6777 6778 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 6779 __func__, dev_db_start_offset, dev_db_end_offset)); 6780 6781 if (dev_db_start_offset > dev_db_end_offset) { 6782 rc = -EIO; 6783 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 6784 __func__, fnode_sess->target_id)); 6785 goto exit_ddb_del; 6786 } 6787 6788 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 6789 &fw_ddb_entry_dma, GFP_KERNEL); 6790 if (!pddb) { 6791 rc = -ENOMEM; 6792 DEBUG2(ql4_printk(KERN_ERR, ha, 6793 "%s: Unable to allocate dma buffer\n", 6794 __func__)); 6795 goto exit_ddb_del; 6796 } 6797 6798 if (is_qla40XX(ha)) { 6799 fw_ddb_entry = pddb; 6800 memset(fw_ddb_entry, 0, ddb_size); 6801 ddb_cookie = &fw_ddb_entry->cookie; 6802 } else { 6803 ddb_cookie = pddb; 6804 } 6805 6806 /* invalidate the cookie */ 6807 *ddb_cookie = 0xFFEE; 6808 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 6809 ddb_size, FLASH_OPT_RMW_COMMIT); 6810 6811 sysfs_ddb_del: 6812 target_id = fnode_sess->target_id; 6813 iscsi_destroy_flashnode_sess(fnode_sess); 6814 ql4_printk(KERN_INFO, ha, 6815 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 6816 __func__, target_id, ha->host_no); 6817 exit_ddb_del: 6818 if (pddb) 6819 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 6820 fw_ddb_entry_dma); 6821 return rc; 6822 } 6823 6824 /** 6825 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 6826 * @ha: pointer to adapter structure 6827 * 6828 * Export the firmware DDB for all send targets and normal targets to sysfs. 6829 **/ 6830 static int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 6831 { 6832 struct dev_db_entry *fw_ddb_entry = NULL; 6833 dma_addr_t fw_ddb_entry_dma; 6834 uint16_t max_ddbs; 6835 uint16_t idx = 0; 6836 int ret = QLA_SUCCESS; 6837 6838 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 6839 sizeof(*fw_ddb_entry), 6840 &fw_ddb_entry_dma, GFP_KERNEL); 6841 if (!fw_ddb_entry) { 6842 DEBUG2(ql4_printk(KERN_ERR, ha, 6843 "%s: Unable to allocate dma buffer\n", 6844 __func__)); 6845 return -ENOMEM; 6846 } 6847 6848 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 6849 MAX_DEV_DB_ENTRIES; 6850 6851 for (idx = 0; idx < max_ddbs; idx++) { 6852 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 6853 idx)) 6854 continue; 6855 6856 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 6857 if (ret) { 6858 ret = -EIO; 6859 break; 6860 } 6861 } 6862 6863 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 6864 fw_ddb_entry_dma); 6865 6866 return ret; 6867 } 6868 6869 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 6870 { 6871 iscsi_destroy_all_flashnode(ha->host); 6872 } 6873 6874 /** 6875 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 6876 * @ha: pointer to adapter structure 6877 * @is_reset: Is this init path or reset path 6878 * 6879 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 6880 * using connection open, then create the list of normal targets (nt) 6881 * from firmware DDBs. Based on the list of nt setup session and connection 6882 * objects. 6883 **/ 6884 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 6885 { 6886 uint16_t tmo = 0; 6887 struct list_head list_st, list_nt; 6888 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 6889 unsigned long wtime; 6890 6891 if (!test_bit(AF_LINK_UP, &ha->flags)) { 6892 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 6893 ha->is_reset = is_reset; 6894 return; 6895 } 6896 6897 INIT_LIST_HEAD(&list_st); 6898 INIT_LIST_HEAD(&list_nt); 6899 6900 qla4xxx_build_st_list(ha, &list_st); 6901 6902 /* Before issuing conn open mbox, ensure all IPs states are configured 6903 * Note, conn open fails if IPs are not configured 6904 */ 6905 qla4xxx_wait_for_ip_configuration(ha); 6906 6907 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 6908 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 6909 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 6910 } 6911 6912 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 6913 tmo = ((ha->def_timeout > LOGIN_TOV) && 6914 (ha->def_timeout < LOGIN_TOV * 10) ? 6915 ha->def_timeout : LOGIN_TOV); 6916 6917 DEBUG2(ql4_printk(KERN_INFO, ha, 6918 "Default time to wait for build ddb %d\n", tmo)); 6919 6920 wtime = jiffies + (HZ * tmo); 6921 do { 6922 if (list_empty(&list_st)) 6923 break; 6924 6925 qla4xxx_remove_failed_ddb(ha, &list_st); 6926 schedule_timeout_uninterruptible(HZ / 10); 6927 } while (time_after(wtime, jiffies)); 6928 6929 /* Free up the sendtargets list */ 6930 qla4xxx_free_ddb_list(&list_st); 6931 6932 qla4xxx_build_nt_list(ha, &list_nt, is_reset); 6933 6934 qla4xxx_free_ddb_list(&list_nt); 6935 6936 qla4xxx_free_ddb_index(ha); 6937 } 6938 6939 /** 6940 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 6941 * response. 6942 * @ha: pointer to adapter structure 6943 * 6944 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 6945 * set in DDB and we will wait for login response of boot targets during 6946 * probe. 6947 **/ 6948 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 6949 { 6950 struct ddb_entry *ddb_entry; 6951 struct dev_db_entry *fw_ddb_entry = NULL; 6952 dma_addr_t fw_ddb_entry_dma; 6953 unsigned long wtime; 6954 uint32_t ddb_state; 6955 int max_ddbs, idx, ret; 6956 6957 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6958 MAX_DEV_DB_ENTRIES; 6959 6960 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6961 &fw_ddb_entry_dma, GFP_KERNEL); 6962 if (!fw_ddb_entry) { 6963 ql4_printk(KERN_ERR, ha, 6964 "%s: Unable to allocate dma buffer\n", __func__); 6965 goto exit_login_resp; 6966 } 6967 6968 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 6969 6970 for (idx = 0; idx < max_ddbs; idx++) { 6971 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6972 if (ddb_entry == NULL) 6973 continue; 6974 6975 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 6976 DEBUG2(ql4_printk(KERN_INFO, ha, 6977 "%s: DDB index [%d]\n", __func__, 6978 ddb_entry->fw_ddb_index)); 6979 do { 6980 ret = qla4xxx_get_fwddb_entry(ha, 6981 ddb_entry->fw_ddb_index, 6982 fw_ddb_entry, fw_ddb_entry_dma, 6983 NULL, NULL, &ddb_state, NULL, 6984 NULL, NULL); 6985 if (ret == QLA_ERROR) 6986 goto exit_login_resp; 6987 6988 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 6989 (ddb_state == DDB_DS_SESSION_FAILED)) 6990 break; 6991 6992 schedule_timeout_uninterruptible(HZ); 6993 6994 } while ((time_after(wtime, jiffies))); 6995 6996 if (!time_after(wtime, jiffies)) { 6997 DEBUG2(ql4_printk(KERN_INFO, ha, 6998 "%s: Login response wait timer expired\n", 6999 __func__)); 7000 goto exit_login_resp; 7001 } 7002 } 7003 } 7004 7005 exit_login_resp: 7006 if (fw_ddb_entry) 7007 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7008 fw_ddb_entry, fw_ddb_entry_dma); 7009 } 7010 7011 /** 7012 * qla4xxx_probe_adapter - callback function to probe HBA 7013 * @pdev: pointer to pci_dev structure 7014 * @pci_device_id: pointer to pci_device entry 7015 * 7016 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 7017 * It returns zero if successful. It also initializes all data necessary for 7018 * the driver. 7019 **/ 7020 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 7021 const struct pci_device_id *ent) 7022 { 7023 int ret = -ENODEV, status; 7024 struct Scsi_Host *host; 7025 struct scsi_qla_host *ha; 7026 uint8_t init_retry_count = 0; 7027 char buf[34]; 7028 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 7029 uint32_t dev_state; 7030 7031 if (pci_enable_device(pdev)) 7032 return -1; 7033 7034 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 7035 if (host == NULL) { 7036 printk(KERN_WARNING 7037 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 7038 goto probe_disable_device; 7039 } 7040 7041 /* Clear our data area */ 7042 ha = to_qla_host(host); 7043 memset(ha, 0, sizeof(*ha)); 7044 7045 /* Save the information from PCI BIOS. */ 7046 ha->pdev = pdev; 7047 ha->host = host; 7048 ha->host_no = host->host_no; 7049 ha->func_num = PCI_FUNC(ha->pdev->devfn); 7050 7051 pci_enable_pcie_error_reporting(pdev); 7052 7053 /* Setup Runtime configurable options */ 7054 if (is_qla8022(ha)) { 7055 ha->isp_ops = &qla4_82xx_isp_ops; 7056 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 7057 ha->qdr_sn_window = -1; 7058 ha->ddr_mn_window = -1; 7059 ha->curr_window = 255; 7060 nx_legacy_intr = &legacy_intr[ha->func_num]; 7061 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 7062 ha->nx_legacy_intr.tgt_status_reg = 7063 nx_legacy_intr->tgt_status_reg; 7064 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 7065 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 7066 } else if (is_qla8032(ha) || is_qla8042(ha)) { 7067 ha->isp_ops = &qla4_83xx_isp_ops; 7068 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 7069 } else { 7070 ha->isp_ops = &qla4xxx_isp_ops; 7071 } 7072 7073 if (is_qla80XX(ha)) { 7074 rwlock_init(&ha->hw_lock); 7075 ha->pf_bit = ha->func_num << 16; 7076 /* Set EEH reset type to fundamental if required by hba */ 7077 pdev->needs_freset = 1; 7078 } 7079 7080 /* Configure PCI I/O space. */ 7081 ret = ha->isp_ops->iospace_config(ha); 7082 if (ret) 7083 goto probe_failed_ioconfig; 7084 7085 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 7086 pdev->device, pdev->irq, ha->reg); 7087 7088 qla4xxx_config_dma_addressing(ha); 7089 7090 /* Initialize lists and spinlocks. */ 7091 INIT_LIST_HEAD(&ha->free_srb_q); 7092 7093 mutex_init(&ha->mbox_sem); 7094 mutex_init(&ha->chap_sem); 7095 init_completion(&ha->mbx_intr_comp); 7096 init_completion(&ha->disable_acb_comp); 7097 7098 spin_lock_init(&ha->hardware_lock); 7099 spin_lock_init(&ha->work_lock); 7100 7101 /* Initialize work list */ 7102 INIT_LIST_HEAD(&ha->work_list); 7103 7104 /* Allocate dma buffers */ 7105 if (qla4xxx_mem_alloc(ha)) { 7106 ql4_printk(KERN_WARNING, ha, 7107 "[ERROR] Failed to allocate memory for adapter\n"); 7108 7109 ret = -ENOMEM; 7110 goto probe_failed; 7111 } 7112 7113 host->cmd_per_lun = 3; 7114 host->max_channel = 0; 7115 host->max_lun = MAX_LUNS - 1; 7116 host->max_id = MAX_TARGETS; 7117 host->max_cmd_len = IOCB_MAX_CDB_LEN; 7118 host->can_queue = MAX_SRBS ; 7119 host->transportt = qla4xxx_scsi_transport; 7120 7121 ret = scsi_init_shared_tag_map(host, MAX_SRBS); 7122 if (ret) { 7123 ql4_printk(KERN_WARNING, ha, 7124 "%s: scsi_init_shared_tag_map failed\n", __func__); 7125 goto probe_failed; 7126 } 7127 7128 pci_set_drvdata(pdev, ha); 7129 7130 ret = scsi_add_host(host, &pdev->dev); 7131 if (ret) 7132 goto probe_failed; 7133 7134 if (is_qla80XX(ha)) 7135 qla4_8xxx_get_flash_info(ha); 7136 7137 if (is_qla8032(ha) || is_qla8042(ha)) { 7138 qla4_83xx_read_reset_template(ha); 7139 /* 7140 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 7141 * If DONRESET_BIT0 is set, drivers should not set dev_state 7142 * to NEED_RESET. But if NEED_RESET is set, drivers should 7143 * should honor the reset. 7144 */ 7145 if (ql4xdontresethba == 1) 7146 qla4_83xx_set_idc_dontreset(ha); 7147 } 7148 7149 /* 7150 * Initialize the Host adapter request/response queues and 7151 * firmware 7152 * NOTE: interrupts enabled upon successful completion 7153 */ 7154 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 7155 7156 /* Dont retry adapter initialization if IRQ allocation failed */ 7157 if (is_qla80XX(ha) && !test_bit(AF_IRQ_ATTACHED, &ha->flags)) { 7158 ql4_printk(KERN_WARNING, ha, "%s: Skipping retry of adapter initialization\n", 7159 __func__); 7160 goto skip_retry_init; 7161 } 7162 7163 while ((!test_bit(AF_ONLINE, &ha->flags)) && 7164 init_retry_count++ < MAX_INIT_RETRIES) { 7165 7166 if (is_qla80XX(ha)) { 7167 ha->isp_ops->idc_lock(ha); 7168 dev_state = qla4_8xxx_rd_direct(ha, 7169 QLA8XXX_CRB_DEV_STATE); 7170 ha->isp_ops->idc_unlock(ha); 7171 if (dev_state == QLA8XXX_DEV_FAILED) { 7172 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 7173 "initialize adapter. H/W is in failed state\n", 7174 __func__); 7175 break; 7176 } 7177 } 7178 DEBUG2(printk("scsi: %s: retrying adapter initialization " 7179 "(%d)\n", __func__, init_retry_count)); 7180 7181 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 7182 continue; 7183 7184 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 7185 } 7186 7187 skip_retry_init: 7188 if (!test_bit(AF_ONLINE, &ha->flags)) { 7189 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 7190 7191 if ((is_qla8022(ha) && ql4xdontresethba) || 7192 ((is_qla8032(ha) || is_qla8042(ha)) && 7193 qla4_83xx_idc_dontreset(ha))) { 7194 /* Put the device in failed state. */ 7195 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 7196 ha->isp_ops->idc_lock(ha); 7197 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 7198 QLA8XXX_DEV_FAILED); 7199 ha->isp_ops->idc_unlock(ha); 7200 } 7201 ret = -ENODEV; 7202 goto remove_host; 7203 } 7204 7205 /* Startup the kernel thread for this host adapter. */ 7206 DEBUG2(printk("scsi: %s: Starting kernel thread for " 7207 "qla4xxx_dpc\n", __func__)); 7208 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 7209 ha->dpc_thread = create_singlethread_workqueue(buf); 7210 if (!ha->dpc_thread) { 7211 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 7212 ret = -ENODEV; 7213 goto remove_host; 7214 } 7215 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 7216 7217 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 7218 ha->host_no); 7219 if (!ha->task_wq) { 7220 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 7221 ret = -ENODEV; 7222 goto remove_host; 7223 } 7224 7225 /* 7226 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 7227 * (which is called indirectly by qla4xxx_initialize_adapter), 7228 * so that irqs will be registered after crbinit but before 7229 * mbx_intr_enable. 7230 */ 7231 if (is_qla40XX(ha)) { 7232 ret = qla4xxx_request_irqs(ha); 7233 if (ret) { 7234 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 7235 "interrupt %d already in use.\n", pdev->irq); 7236 goto remove_host; 7237 } 7238 } 7239 7240 pci_save_state(ha->pdev); 7241 ha->isp_ops->enable_intrs(ha); 7242 7243 /* Start timer thread. */ 7244 qla4xxx_start_timer(ha, qla4xxx_timer, 1); 7245 7246 set_bit(AF_INIT_DONE, &ha->flags); 7247 7248 qla4_8xxx_alloc_sysfs_attr(ha); 7249 7250 printk(KERN_INFO 7251 " QLogic iSCSI HBA Driver version: %s\n" 7252 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 7253 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 7254 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 7255 ha->fw_info.fw_patch, ha->fw_info.fw_build); 7256 7257 /* Set the driver version */ 7258 if (is_qla80XX(ha)) 7259 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 7260 7261 if (qla4xxx_setup_boot_info(ha)) 7262 ql4_printk(KERN_ERR, ha, 7263 "%s: No iSCSI boot target configured\n", __func__); 7264 7265 if (qla4xxx_sysfs_ddb_export(ha)) 7266 ql4_printk(KERN_ERR, ha, 7267 "%s: Error exporting ddb to sysfs\n", __func__); 7268 7269 /* Perform the build ddb list and login to each */ 7270 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 7271 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 7272 qla4xxx_wait_login_resp_boot_tgt(ha); 7273 7274 qla4xxx_create_chap_list(ha); 7275 7276 qla4xxx_create_ifaces(ha); 7277 return 0; 7278 7279 remove_host: 7280 scsi_remove_host(ha->host); 7281 7282 probe_failed: 7283 qla4xxx_free_adapter(ha); 7284 7285 probe_failed_ioconfig: 7286 pci_disable_pcie_error_reporting(pdev); 7287 scsi_host_put(ha->host); 7288 7289 probe_disable_device: 7290 pci_disable_device(pdev); 7291 7292 return ret; 7293 } 7294 7295 /** 7296 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 7297 * @ha: pointer to adapter structure 7298 * 7299 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 7300 * so that the other port will not re-initialize while in the process of 7301 * removing the ha due to driver unload or hba hotplug. 7302 **/ 7303 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 7304 { 7305 struct scsi_qla_host *other_ha = NULL; 7306 struct pci_dev *other_pdev = NULL; 7307 int fn = ISP4XXX_PCI_FN_2; 7308 7309 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 7310 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 7311 fn = ISP4XXX_PCI_FN_1; 7312 7313 other_pdev = 7314 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 7315 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 7316 fn)); 7317 7318 /* Get other_ha if other_pdev is valid and state is enable*/ 7319 if (other_pdev) { 7320 if (atomic_read(&other_pdev->enable_cnt)) { 7321 other_ha = pci_get_drvdata(other_pdev); 7322 if (other_ha) { 7323 set_bit(AF_HA_REMOVAL, &other_ha->flags); 7324 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 7325 "Prevent %s reinit\n", __func__, 7326 dev_name(&other_ha->pdev->dev))); 7327 } 7328 } 7329 pci_dev_put(other_pdev); 7330 } 7331 } 7332 7333 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 7334 { 7335 struct ddb_entry *ddb_entry; 7336 int options; 7337 int idx; 7338 7339 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7340 7341 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7342 if ((ddb_entry != NULL) && 7343 (ddb_entry->ddb_type == FLASH_DDB)) { 7344 7345 options = LOGOUT_OPTION_CLOSE_SESSION; 7346 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) 7347 == QLA_ERROR) 7348 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", 7349 __func__); 7350 7351 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7352 /* 7353 * we have decremented the reference count of the driver 7354 * when we setup the session to have the driver unload 7355 * to be seamless without actually destroying the 7356 * session 7357 **/ 7358 try_module_get(qla4xxx_iscsi_transport.owner); 7359 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7360 qla4xxx_free_ddb(ha, ddb_entry); 7361 iscsi_session_teardown(ddb_entry->sess); 7362 } 7363 } 7364 } 7365 /** 7366 * qla4xxx_remove_adapter - callback function to remove adapter. 7367 * @pci_dev: PCI device pointer 7368 **/ 7369 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 7370 { 7371 struct scsi_qla_host *ha; 7372 7373 /* 7374 * If the PCI device is disabled then it means probe_adapter had 7375 * failed and resources already cleaned up on probe_adapter exit. 7376 */ 7377 if (!pci_is_enabled(pdev)) 7378 return; 7379 7380 ha = pci_get_drvdata(pdev); 7381 7382 if (is_qla40XX(ha)) 7383 qla4xxx_prevent_other_port_reinit(ha); 7384 7385 /* destroy iface from sysfs */ 7386 qla4xxx_destroy_ifaces(ha); 7387 7388 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 7389 iscsi_boot_destroy_kset(ha->boot_kset); 7390 7391 qla4xxx_destroy_fw_ddb_session(ha); 7392 qla4_8xxx_free_sysfs_attr(ha); 7393 7394 qla4xxx_sysfs_ddb_remove(ha); 7395 scsi_remove_host(ha->host); 7396 7397 qla4xxx_free_adapter(ha); 7398 7399 scsi_host_put(ha->host); 7400 7401 pci_disable_pcie_error_reporting(pdev); 7402 pci_disable_device(pdev); 7403 pci_set_drvdata(pdev, NULL); 7404 } 7405 7406 /** 7407 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 7408 * @ha: HA context 7409 * 7410 * At exit, the @ha's flags.enable_64bit_addressing set to indicated 7411 * supported addressing method. 7412 */ 7413 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 7414 { 7415 int retval; 7416 7417 /* Update our PCI device dma_mask for full 64 bit mask */ 7418 if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 7419 if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 7420 dev_dbg(&ha->pdev->dev, 7421 "Failed to set 64 bit PCI consistent mask; " 7422 "using 32 bit.\n"); 7423 retval = pci_set_consistent_dma_mask(ha->pdev, 7424 DMA_BIT_MASK(32)); 7425 } 7426 } else 7427 retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 7428 } 7429 7430 static int qla4xxx_slave_alloc(struct scsi_device *sdev) 7431 { 7432 struct iscsi_cls_session *cls_sess; 7433 struct iscsi_session *sess; 7434 struct ddb_entry *ddb; 7435 int queue_depth = QL4_DEF_QDEPTH; 7436 7437 cls_sess = starget_to_session(sdev->sdev_target); 7438 sess = cls_sess->dd_data; 7439 ddb = sess->dd_data; 7440 7441 sdev->hostdata = ddb; 7442 sdev->tagged_supported = 1; 7443 7444 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 7445 queue_depth = ql4xmaxqdepth; 7446 7447 scsi_activate_tcq(sdev, queue_depth); 7448 return 0; 7449 } 7450 7451 static int qla4xxx_slave_configure(struct scsi_device *sdev) 7452 { 7453 sdev->tagged_supported = 1; 7454 return 0; 7455 } 7456 7457 static void qla4xxx_slave_destroy(struct scsi_device *sdev) 7458 { 7459 scsi_deactivate_tcq(sdev, 1); 7460 } 7461 7462 static int qla4xxx_change_queue_depth(struct scsi_device *sdev, int qdepth, 7463 int reason) 7464 { 7465 if (!ql4xqfulltracking) 7466 return -EOPNOTSUPP; 7467 7468 return iscsi_change_queue_depth(sdev, qdepth, reason); 7469 } 7470 7471 /** 7472 * qla4xxx_del_from_active_array - returns an active srb 7473 * @ha: Pointer to host adapter structure. 7474 * @index: index into the active_array 7475 * 7476 * This routine removes and returns the srb at the specified index 7477 **/ 7478 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 7479 uint32_t index) 7480 { 7481 struct srb *srb = NULL; 7482 struct scsi_cmnd *cmd = NULL; 7483 7484 cmd = scsi_host_find_tag(ha->host, index); 7485 if (!cmd) 7486 return srb; 7487 7488 srb = (struct srb *)CMD_SP(cmd); 7489 if (!srb) 7490 return srb; 7491 7492 /* update counters */ 7493 if (srb->flags & SRB_DMA_VALID) { 7494 ha->iocb_cnt -= srb->iocb_cnt; 7495 if (srb->cmd) 7496 srb->cmd->host_scribble = 7497 (unsigned char *)(unsigned long) MAX_SRBS; 7498 } 7499 return srb; 7500 } 7501 7502 /** 7503 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 7504 * @ha: Pointer to host adapter structure. 7505 * @cmd: Scsi Command to wait on. 7506 * 7507 * This routine waits for the command to be returned by the Firmware 7508 * for some max time. 7509 **/ 7510 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 7511 struct scsi_cmnd *cmd) 7512 { 7513 int done = 0; 7514 struct srb *rp; 7515 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 7516 int ret = SUCCESS; 7517 7518 /* Dont wait on command if PCI error is being handled 7519 * by PCI AER driver 7520 */ 7521 if (unlikely(pci_channel_offline(ha->pdev)) || 7522 (test_bit(AF_EEH_BUSY, &ha->flags))) { 7523 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 7524 ha->host_no, __func__); 7525 return ret; 7526 } 7527 7528 do { 7529 /* Checking to see if its returned to OS */ 7530 rp = (struct srb *) CMD_SP(cmd); 7531 if (rp == NULL) { 7532 done++; 7533 break; 7534 } 7535 7536 msleep(2000); 7537 } while (max_wait_time--); 7538 7539 return done; 7540 } 7541 7542 /** 7543 * qla4xxx_wait_for_hba_online - waits for HBA to come online 7544 * @ha: Pointer to host adapter structure 7545 **/ 7546 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 7547 { 7548 unsigned long wait_online; 7549 7550 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 7551 while (time_before(jiffies, wait_online)) { 7552 7553 if (adapter_up(ha)) 7554 return QLA_SUCCESS; 7555 7556 msleep(2000); 7557 } 7558 7559 return QLA_ERROR; 7560 } 7561 7562 /** 7563 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 7564 * @ha: pointer to HBA 7565 * @t: target id 7566 * @l: lun id 7567 * 7568 * This function waits for all outstanding commands to a lun to complete. It 7569 * returns 0 if all pending commands are returned and 1 otherwise. 7570 **/ 7571 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 7572 struct scsi_target *stgt, 7573 struct scsi_device *sdev) 7574 { 7575 int cnt; 7576 int status = 0; 7577 struct scsi_cmnd *cmd; 7578 7579 /* 7580 * Waiting for all commands for the designated target or dev 7581 * in the active array 7582 */ 7583 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 7584 cmd = scsi_host_find_tag(ha->host, cnt); 7585 if (cmd && stgt == scsi_target(cmd->device) && 7586 (!sdev || sdev == cmd->device)) { 7587 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 7588 status++; 7589 break; 7590 } 7591 } 7592 } 7593 return status; 7594 } 7595 7596 /** 7597 * qla4xxx_eh_abort - callback for abort task. 7598 * @cmd: Pointer to Linux's SCSI command structure 7599 * 7600 * This routine is called by the Linux OS to abort the specified 7601 * command. 7602 **/ 7603 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 7604 { 7605 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 7606 unsigned int id = cmd->device->id; 7607 unsigned int lun = cmd->device->lun; 7608 unsigned long flags; 7609 struct srb *srb = NULL; 7610 int ret = SUCCESS; 7611 int wait = 0; 7612 7613 ql4_printk(KERN_INFO, ha, 7614 "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 7615 ha->host_no, id, lun, cmd); 7616 7617 spin_lock_irqsave(&ha->hardware_lock, flags); 7618 srb = (struct srb *) CMD_SP(cmd); 7619 if (!srb) { 7620 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7621 return SUCCESS; 7622 } 7623 kref_get(&srb->srb_ref); 7624 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7625 7626 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 7627 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 7628 ha->host_no, id, lun)); 7629 ret = FAILED; 7630 } else { 7631 DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 7632 ha->host_no, id, lun)); 7633 wait = 1; 7634 } 7635 7636 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 7637 7638 /* Wait for command to complete */ 7639 if (wait) { 7640 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 7641 DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 7642 ha->host_no, id, lun)); 7643 ret = FAILED; 7644 } 7645 } 7646 7647 ql4_printk(KERN_INFO, ha, 7648 "scsi%ld:%d:%d: Abort command - %s\n", 7649 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 7650 7651 return ret; 7652 } 7653 7654 /** 7655 * qla4xxx_eh_device_reset - callback for target reset. 7656 * @cmd: Pointer to Linux's SCSI command structure 7657 * 7658 * This routine is called by the Linux OS to reset all luns on the 7659 * specified target. 7660 **/ 7661 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 7662 { 7663 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 7664 struct ddb_entry *ddb_entry = cmd->device->hostdata; 7665 int ret = FAILED, stat; 7666 7667 if (!ddb_entry) 7668 return ret; 7669 7670 ret = iscsi_block_scsi_eh(cmd); 7671 if (ret) 7672 return ret; 7673 ret = FAILED; 7674 7675 ql4_printk(KERN_INFO, ha, 7676 "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 7677 cmd->device->channel, cmd->device->id, cmd->device->lun); 7678 7679 DEBUG2(printk(KERN_INFO 7680 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 7681 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 7682 cmd, jiffies, cmd->request->timeout / HZ, 7683 ha->dpc_flags, cmd->result, cmd->allowed)); 7684 7685 /* FIXME: wait for hba to go online */ 7686 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 7687 if (stat != QLA_SUCCESS) { 7688 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 7689 goto eh_dev_reset_done; 7690 } 7691 7692 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 7693 cmd->device)) { 7694 ql4_printk(KERN_INFO, ha, 7695 "DEVICE RESET FAILED - waiting for " 7696 "commands.\n"); 7697 goto eh_dev_reset_done; 7698 } 7699 7700 /* Send marker. */ 7701 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 7702 MM_LUN_RESET) != QLA_SUCCESS) 7703 goto eh_dev_reset_done; 7704 7705 ql4_printk(KERN_INFO, ha, 7706 "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 7707 ha->host_no, cmd->device->channel, cmd->device->id, 7708 cmd->device->lun); 7709 7710 ret = SUCCESS; 7711 7712 eh_dev_reset_done: 7713 7714 return ret; 7715 } 7716 7717 /** 7718 * qla4xxx_eh_target_reset - callback for target reset. 7719 * @cmd: Pointer to Linux's SCSI command structure 7720 * 7721 * This routine is called by the Linux OS to reset the target. 7722 **/ 7723 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 7724 { 7725 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 7726 struct ddb_entry *ddb_entry = cmd->device->hostdata; 7727 int stat, ret; 7728 7729 if (!ddb_entry) 7730 return FAILED; 7731 7732 ret = iscsi_block_scsi_eh(cmd); 7733 if (ret) 7734 return ret; 7735 7736 starget_printk(KERN_INFO, scsi_target(cmd->device), 7737 "WARM TARGET RESET ISSUED.\n"); 7738 7739 DEBUG2(printk(KERN_INFO 7740 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 7741 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 7742 ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 7743 ha->dpc_flags, cmd->result, cmd->allowed)); 7744 7745 stat = qla4xxx_reset_target(ha, ddb_entry); 7746 if (stat != QLA_SUCCESS) { 7747 starget_printk(KERN_INFO, scsi_target(cmd->device), 7748 "WARM TARGET RESET FAILED.\n"); 7749 return FAILED; 7750 } 7751 7752 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 7753 NULL)) { 7754 starget_printk(KERN_INFO, scsi_target(cmd->device), 7755 "WARM TARGET DEVICE RESET FAILED - " 7756 "waiting for commands.\n"); 7757 return FAILED; 7758 } 7759 7760 /* Send marker. */ 7761 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 7762 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 7763 starget_printk(KERN_INFO, scsi_target(cmd->device), 7764 "WARM TARGET DEVICE RESET FAILED - " 7765 "marker iocb failed.\n"); 7766 return FAILED; 7767 } 7768 7769 starget_printk(KERN_INFO, scsi_target(cmd->device), 7770 "WARM TARGET RESET SUCCEEDED.\n"); 7771 return SUCCESS; 7772 } 7773 7774 /** 7775 * qla4xxx_is_eh_active - check if error handler is running 7776 * @shost: Pointer to SCSI Host struct 7777 * 7778 * This routine finds that if reset host is called in EH 7779 * scenario or from some application like sg_reset 7780 **/ 7781 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 7782 { 7783 if (shost->shost_state == SHOST_RECOVERY) 7784 return 1; 7785 return 0; 7786 } 7787 7788 /** 7789 * qla4xxx_eh_host_reset - kernel callback 7790 * @cmd: Pointer to Linux's SCSI command structure 7791 * 7792 * This routine is invoked by the Linux kernel to perform fatal error 7793 * recovery on the specified adapter. 7794 **/ 7795 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 7796 { 7797 int return_status = FAILED; 7798 struct scsi_qla_host *ha; 7799 7800 ha = to_qla_host(cmd->device->host); 7801 7802 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 7803 qla4_83xx_set_idc_dontreset(ha); 7804 7805 /* 7806 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 7807 * protocol drivers, we should not set device_state to NEED_RESET 7808 */ 7809 if (ql4xdontresethba || 7810 ((is_qla8032(ha) || is_qla8042(ha)) && 7811 qla4_83xx_idc_dontreset(ha))) { 7812 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 7813 ha->host_no, __func__)); 7814 7815 /* Clear outstanding srb in queues */ 7816 if (qla4xxx_is_eh_active(cmd->device->host)) 7817 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 7818 7819 return FAILED; 7820 } 7821 7822 ql4_printk(KERN_INFO, ha, 7823 "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 7824 cmd->device->channel, cmd->device->id, cmd->device->lun); 7825 7826 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 7827 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 7828 "DEAD.\n", ha->host_no, cmd->device->channel, 7829 __func__)); 7830 7831 return FAILED; 7832 } 7833 7834 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 7835 if (is_qla80XX(ha)) 7836 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 7837 else 7838 set_bit(DPC_RESET_HA, &ha->dpc_flags); 7839 } 7840 7841 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 7842 return_status = SUCCESS; 7843 7844 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 7845 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 7846 7847 return return_status; 7848 } 7849 7850 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 7851 { 7852 uint32_t mbox_cmd[MBOX_REG_COUNT]; 7853 uint32_t mbox_sts[MBOX_REG_COUNT]; 7854 struct addr_ctrl_blk_def *acb = NULL; 7855 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 7856 int rval = QLA_SUCCESS; 7857 dma_addr_t acb_dma; 7858 7859 acb = dma_alloc_coherent(&ha->pdev->dev, 7860 sizeof(struct addr_ctrl_blk_def), 7861 &acb_dma, GFP_KERNEL); 7862 if (!acb) { 7863 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 7864 __func__); 7865 rval = -ENOMEM; 7866 goto exit_port_reset; 7867 } 7868 7869 memset(acb, 0, acb_len); 7870 7871 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 7872 if (rval != QLA_SUCCESS) { 7873 rval = -EIO; 7874 goto exit_free_acb; 7875 } 7876 7877 rval = qla4xxx_disable_acb(ha); 7878 if (rval != QLA_SUCCESS) { 7879 rval = -EIO; 7880 goto exit_free_acb; 7881 } 7882 7883 wait_for_completion_timeout(&ha->disable_acb_comp, 7884 DISABLE_ACB_TOV * HZ); 7885 7886 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 7887 if (rval != QLA_SUCCESS) { 7888 rval = -EIO; 7889 goto exit_free_acb; 7890 } 7891 7892 exit_free_acb: 7893 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 7894 acb, acb_dma); 7895 exit_port_reset: 7896 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 7897 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 7898 return rval; 7899 } 7900 7901 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 7902 { 7903 struct scsi_qla_host *ha = to_qla_host(shost); 7904 int rval = QLA_SUCCESS; 7905 uint32_t idc_ctrl; 7906 7907 if (ql4xdontresethba) { 7908 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 7909 __func__)); 7910 rval = -EPERM; 7911 goto exit_host_reset; 7912 } 7913 7914 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 7915 goto recover_adapter; 7916 7917 switch (reset_type) { 7918 case SCSI_ADAPTER_RESET: 7919 set_bit(DPC_RESET_HA, &ha->dpc_flags); 7920 break; 7921 case SCSI_FIRMWARE_RESET: 7922 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 7923 if (is_qla80XX(ha)) 7924 /* set firmware context reset */ 7925 set_bit(DPC_RESET_HA_FW_CONTEXT, 7926 &ha->dpc_flags); 7927 else { 7928 rval = qla4xxx_context_reset(ha); 7929 goto exit_host_reset; 7930 } 7931 } 7932 break; 7933 } 7934 7935 recover_adapter: 7936 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 7937 * reset is issued by application */ 7938 if ((is_qla8032(ha) || is_qla8042(ha)) && 7939 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 7940 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 7941 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 7942 (idc_ctrl | GRACEFUL_RESET_BIT1)); 7943 } 7944 7945 rval = qla4xxx_recover_adapter(ha); 7946 if (rval != QLA_SUCCESS) { 7947 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 7948 __func__)); 7949 rval = -EIO; 7950 } 7951 7952 exit_host_reset: 7953 return rval; 7954 } 7955 7956 /* PCI AER driver recovers from all correctable errors w/o 7957 * driver intervention. For uncorrectable errors PCI AER 7958 * driver calls the following device driver's callbacks 7959 * 7960 * - Fatal Errors - link_reset 7961 * - Non-Fatal Errors - driver's pci_error_detected() which 7962 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 7963 * 7964 * PCI AER driver calls 7965 * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 7966 * returns RECOVERED or NEED_RESET if fw_hung 7967 * NEED_RESET - driver's slot_reset() 7968 * DISCONNECT - device is dead & cannot recover 7969 * RECOVERED - driver's pci_resume() 7970 */ 7971 static pci_ers_result_t 7972 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 7973 { 7974 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 7975 7976 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 7977 ha->host_no, __func__, state); 7978 7979 if (!is_aer_supported(ha)) 7980 return PCI_ERS_RESULT_NONE; 7981 7982 switch (state) { 7983 case pci_channel_io_normal: 7984 clear_bit(AF_EEH_BUSY, &ha->flags); 7985 return PCI_ERS_RESULT_CAN_RECOVER; 7986 case pci_channel_io_frozen: 7987 set_bit(AF_EEH_BUSY, &ha->flags); 7988 qla4xxx_mailbox_premature_completion(ha); 7989 qla4xxx_free_irqs(ha); 7990 pci_disable_device(pdev); 7991 /* Return back all IOs */ 7992 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 7993 return PCI_ERS_RESULT_NEED_RESET; 7994 case pci_channel_io_perm_failure: 7995 set_bit(AF_EEH_BUSY, &ha->flags); 7996 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 7997 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 7998 return PCI_ERS_RESULT_DISCONNECT; 7999 } 8000 return PCI_ERS_RESULT_NEED_RESET; 8001 } 8002 8003 /** 8004 * qla4xxx_pci_mmio_enabled() gets called if 8005 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 8006 * and read/write to the device still works. 8007 **/ 8008 static pci_ers_result_t 8009 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 8010 { 8011 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 8012 8013 if (!is_aer_supported(ha)) 8014 return PCI_ERS_RESULT_NONE; 8015 8016 return PCI_ERS_RESULT_RECOVERED; 8017 } 8018 8019 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 8020 { 8021 uint32_t rval = QLA_ERROR; 8022 int fn; 8023 struct pci_dev *other_pdev = NULL; 8024 8025 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 8026 8027 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 8028 8029 if (test_bit(AF_ONLINE, &ha->flags)) { 8030 clear_bit(AF_ONLINE, &ha->flags); 8031 clear_bit(AF_LINK_UP, &ha->flags); 8032 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 8033 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 8034 } 8035 8036 fn = PCI_FUNC(ha->pdev->devfn); 8037 while (fn > 0) { 8038 fn--; 8039 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 8040 "func %x\n", ha->host_no, __func__, fn); 8041 /* Get the pci device given the domain, bus, 8042 * slot/function number */ 8043 other_pdev = 8044 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8045 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8046 fn)); 8047 8048 if (!other_pdev) 8049 continue; 8050 8051 if (atomic_read(&other_pdev->enable_cnt)) { 8052 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 8053 "func in enabled state%x\n", ha->host_no, 8054 __func__, fn); 8055 pci_dev_put(other_pdev); 8056 break; 8057 } 8058 pci_dev_put(other_pdev); 8059 } 8060 8061 /* The first function on the card, the reset owner will 8062 * start & initialize the firmware. The other functions 8063 * on the card will reset the firmware context 8064 */ 8065 if (!fn) { 8066 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 8067 "0x%x is the owner\n", ha->host_no, __func__, 8068 ha->pdev->devfn); 8069 8070 ha->isp_ops->idc_lock(ha); 8071 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8072 QLA8XXX_DEV_COLD); 8073 ha->isp_ops->idc_unlock(ha); 8074 8075 rval = qla4_8xxx_update_idc_reg(ha); 8076 if (rval == QLA_ERROR) { 8077 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 8078 ha->host_no, __func__); 8079 ha->isp_ops->idc_lock(ha); 8080 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8081 QLA8XXX_DEV_FAILED); 8082 ha->isp_ops->idc_unlock(ha); 8083 goto exit_error_recovery; 8084 } 8085 8086 clear_bit(AF_FW_RECOVERY, &ha->flags); 8087 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 8088 8089 if (rval != QLA_SUCCESS) { 8090 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 8091 "FAILED\n", ha->host_no, __func__); 8092 ha->isp_ops->idc_lock(ha); 8093 qla4_8xxx_clear_drv_active(ha); 8094 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8095 QLA8XXX_DEV_FAILED); 8096 ha->isp_ops->idc_unlock(ha); 8097 } else { 8098 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 8099 "READY\n", ha->host_no, __func__); 8100 ha->isp_ops->idc_lock(ha); 8101 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8102 QLA8XXX_DEV_READY); 8103 /* Clear driver state register */ 8104 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 8105 qla4_8xxx_set_drv_active(ha); 8106 ha->isp_ops->idc_unlock(ha); 8107 ha->isp_ops->enable_intrs(ha); 8108 } 8109 } else { 8110 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 8111 "the reset owner\n", ha->host_no, __func__, 8112 ha->pdev->devfn); 8113 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 8114 QLA8XXX_DEV_READY)) { 8115 clear_bit(AF_FW_RECOVERY, &ha->flags); 8116 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 8117 if (rval == QLA_SUCCESS) 8118 ha->isp_ops->enable_intrs(ha); 8119 8120 ha->isp_ops->idc_lock(ha); 8121 qla4_8xxx_set_drv_active(ha); 8122 ha->isp_ops->idc_unlock(ha); 8123 } 8124 } 8125 exit_error_recovery: 8126 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 8127 return rval; 8128 } 8129 8130 static pci_ers_result_t 8131 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 8132 { 8133 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 8134 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 8135 int rc; 8136 8137 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 8138 ha->host_no, __func__); 8139 8140 if (!is_aer_supported(ha)) 8141 return PCI_ERS_RESULT_NONE; 8142 8143 /* Restore the saved state of PCIe device - 8144 * BAR registers, PCI Config space, PCIX, MSI, 8145 * IOV states 8146 */ 8147 pci_restore_state(pdev); 8148 8149 /* pci_restore_state() clears the saved_state flag of the device 8150 * save restored state which resets saved_state flag 8151 */ 8152 pci_save_state(pdev); 8153 8154 /* Initialize device or resume if in suspended state */ 8155 rc = pci_enable_device(pdev); 8156 if (rc) { 8157 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 8158 "device after reset\n", ha->host_no, __func__); 8159 goto exit_slot_reset; 8160 } 8161 8162 ha->isp_ops->disable_intrs(ha); 8163 8164 if (is_qla80XX(ha)) { 8165 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 8166 ret = PCI_ERS_RESULT_RECOVERED; 8167 goto exit_slot_reset; 8168 } else 8169 goto exit_slot_reset; 8170 } 8171 8172 exit_slot_reset: 8173 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 8174 "device after reset\n", ha->host_no, __func__, ret); 8175 return ret; 8176 } 8177 8178 static void 8179 qla4xxx_pci_resume(struct pci_dev *pdev) 8180 { 8181 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 8182 int ret; 8183 8184 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 8185 ha->host_no, __func__); 8186 8187 ret = qla4xxx_wait_for_hba_online(ha); 8188 if (ret != QLA_SUCCESS) { 8189 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 8190 "resume I/O from slot/link_reset\n", ha->host_no, 8191 __func__); 8192 } 8193 8194 pci_cleanup_aer_uncorrect_error_status(pdev); 8195 clear_bit(AF_EEH_BUSY, &ha->flags); 8196 } 8197 8198 static const struct pci_error_handlers qla4xxx_err_handler = { 8199 .error_detected = qla4xxx_pci_error_detected, 8200 .mmio_enabled = qla4xxx_pci_mmio_enabled, 8201 .slot_reset = qla4xxx_pci_slot_reset, 8202 .resume = qla4xxx_pci_resume, 8203 }; 8204 8205 static struct pci_device_id qla4xxx_pci_tbl[] = { 8206 { 8207 .vendor = PCI_VENDOR_ID_QLOGIC, 8208 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 8209 .subvendor = PCI_ANY_ID, 8210 .subdevice = PCI_ANY_ID, 8211 }, 8212 { 8213 .vendor = PCI_VENDOR_ID_QLOGIC, 8214 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 8215 .subvendor = PCI_ANY_ID, 8216 .subdevice = PCI_ANY_ID, 8217 }, 8218 { 8219 .vendor = PCI_VENDOR_ID_QLOGIC, 8220 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 8221 .subvendor = PCI_ANY_ID, 8222 .subdevice = PCI_ANY_ID, 8223 }, 8224 { 8225 .vendor = PCI_VENDOR_ID_QLOGIC, 8226 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 8227 .subvendor = PCI_ANY_ID, 8228 .subdevice = PCI_ANY_ID, 8229 }, 8230 { 8231 .vendor = PCI_VENDOR_ID_QLOGIC, 8232 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 8233 .subvendor = PCI_ANY_ID, 8234 .subdevice = PCI_ANY_ID, 8235 }, 8236 { 8237 .vendor = PCI_VENDOR_ID_QLOGIC, 8238 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 8239 .subvendor = PCI_ANY_ID, 8240 .subdevice = PCI_ANY_ID, 8241 }, 8242 {0, 0}, 8243 }; 8244 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 8245 8246 static struct pci_driver qla4xxx_pci_driver = { 8247 .name = DRIVER_NAME, 8248 .id_table = qla4xxx_pci_tbl, 8249 .probe = qla4xxx_probe_adapter, 8250 .remove = qla4xxx_remove_adapter, 8251 .err_handler = &qla4xxx_err_handler, 8252 }; 8253 8254 static int __init qla4xxx_module_init(void) 8255 { 8256 int ret; 8257 8258 /* Allocate cache for SRBs. */ 8259 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 8260 SLAB_HWCACHE_ALIGN, NULL); 8261 if (srb_cachep == NULL) { 8262 printk(KERN_ERR 8263 "%s: Unable to allocate SRB cache..." 8264 "Failing load!\n", DRIVER_NAME); 8265 ret = -ENOMEM; 8266 goto no_srp_cache; 8267 } 8268 8269 /* Derive version string. */ 8270 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 8271 if (ql4xextended_error_logging) 8272 strcat(qla4xxx_version_str, "-debug"); 8273 8274 qla4xxx_scsi_transport = 8275 iscsi_register_transport(&qla4xxx_iscsi_transport); 8276 if (!qla4xxx_scsi_transport){ 8277 ret = -ENODEV; 8278 goto release_srb_cache; 8279 } 8280 8281 ret = pci_register_driver(&qla4xxx_pci_driver); 8282 if (ret) 8283 goto unregister_transport; 8284 8285 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 8286 return 0; 8287 8288 unregister_transport: 8289 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 8290 release_srb_cache: 8291 kmem_cache_destroy(srb_cachep); 8292 no_srp_cache: 8293 return ret; 8294 } 8295 8296 static void __exit qla4xxx_module_exit(void) 8297 { 8298 pci_unregister_driver(&qla4xxx_pci_driver); 8299 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 8300 kmem_cache_destroy(srb_cachep); 8301 } 8302 8303 module_init(qla4xxx_module_init); 8304 module_exit(qla4xxx_module_exit); 8305 8306 MODULE_AUTHOR("QLogic Corporation"); 8307 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 8308 MODULE_LICENSE("GPL"); 8309 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 8310