1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * QLogic iSCSI HBA Driver 4 * Copyright (c) 2003-2013 QLogic Corporation 5 */ 6 #include <linux/moduleparam.h> 7 #include <linux/slab.h> 8 #include <linux/blkdev.h> 9 #include <linux/iscsi_boot_sysfs.h> 10 #include <linux/inet.h> 11 12 #include <scsi/scsi_tcq.h> 13 #include <scsi/scsicam.h> 14 15 #include "ql4_def.h" 16 #include "ql4_version.h" 17 #include "ql4_glbl.h" 18 #include "ql4_dbg.h" 19 #include "ql4_inline.h" 20 #include "ql4_83xx.h" 21 22 /* 23 * Driver version 24 */ 25 static char qla4xxx_version_str[40]; 26 27 /* 28 * SRB allocation cache 29 */ 30 static struct kmem_cache *srb_cachep; 31 32 /* 33 * Module parameter information and variables 34 */ 35 static int ql4xdisablesysfsboot = 1; 36 module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); 37 MODULE_PARM_DESC(ql4xdisablesysfsboot, 38 " Set to disable exporting boot targets to sysfs.\n" 39 "\t\t 0 - Export boot targets\n" 40 "\t\t 1 - Do not export boot targets (Default)"); 41 42 int ql4xdontresethba; 43 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 44 MODULE_PARM_DESC(ql4xdontresethba, 45 " Don't reset the HBA for driver recovery.\n" 46 "\t\t 0 - It will reset HBA (Default)\n" 47 "\t\t 1 - It will NOT reset HBA"); 48 49 int ql4xextended_error_logging; 50 module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 51 MODULE_PARM_DESC(ql4xextended_error_logging, 52 " Option to enable extended error logging.\n" 53 "\t\t 0 - no logging (Default)\n" 54 "\t\t 2 - debug logging"); 55 56 int ql4xenablemsix = 1; 57 module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 58 MODULE_PARM_DESC(ql4xenablemsix, 59 " Set to enable MSI or MSI-X interrupt mechanism.\n" 60 "\t\t 0 = enable INTx interrupt mechanism.\n" 61 "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n" 62 "\t\t 2 = enable MSI interrupt mechanism."); 63 64 #define QL4_DEF_QDEPTH 32 65 static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 66 module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 67 MODULE_PARM_DESC(ql4xmaxqdepth, 68 " Maximum queue depth to report for target devices.\n" 69 "\t\t Default: 32."); 70 71 static int ql4xqfulltracking = 1; 72 module_param(ql4xqfulltracking, int, S_IRUGO | S_IWUSR); 73 MODULE_PARM_DESC(ql4xqfulltracking, 74 " Enable or disable dynamic tracking and adjustment of\n" 75 "\t\t scsi device queue depth.\n" 76 "\t\t 0 - Disable.\n" 77 "\t\t 1 - Enable. (Default)"); 78 79 static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 80 module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 81 MODULE_PARM_DESC(ql4xsess_recovery_tmo, 82 " Target Session Recovery Timeout.\n" 83 "\t\t Default: 120 sec."); 84 85 int ql4xmdcapmask = 0; 86 module_param(ql4xmdcapmask, int, S_IRUGO); 87 MODULE_PARM_DESC(ql4xmdcapmask, 88 " Set the Minidump driver capture mask level.\n" 89 "\t\t Default is 0 (firmware default capture mask)\n" 90 "\t\t Can be set to 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF"); 91 92 int ql4xenablemd = 1; 93 module_param(ql4xenablemd, int, S_IRUGO | S_IWUSR); 94 MODULE_PARM_DESC(ql4xenablemd, 95 " Set to enable minidump.\n" 96 "\t\t 0 - disable minidump\n" 97 "\t\t 1 - enable minidump (Default)"); 98 99 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 100 /* 101 * SCSI host template entry points 102 */ 103 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 104 105 /* 106 * iSCSI template entry points 107 */ 108 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 109 enum iscsi_param param, char *buf); 110 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 111 enum iscsi_param param, char *buf); 112 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 113 enum iscsi_host_param param, char *buf); 114 static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, 115 uint32_t len); 116 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 117 enum iscsi_param_type param_type, 118 int param, char *buf); 119 static enum scsi_timeout_action qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 120 static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 121 struct sockaddr *dst_addr, 122 int non_blocking); 123 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 124 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 125 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 126 enum iscsi_param param, char *buf); 127 static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 128 static struct iscsi_cls_conn * 129 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 130 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 131 struct iscsi_cls_conn *cls_conn, 132 uint64_t transport_fd, int is_leading); 133 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 134 static struct iscsi_cls_session * 135 qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 136 uint16_t qdepth, uint32_t initial_cmdsn); 137 static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 138 static void qla4xxx_task_work(struct work_struct *wdata); 139 static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 140 static int qla4xxx_task_xmit(struct iscsi_task *); 141 static void qla4xxx_task_cleanup(struct iscsi_task *); 142 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 143 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 144 struct iscsi_stats *stats); 145 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 146 uint32_t iface_type, uint32_t payload_size, 147 uint32_t pid, struct sockaddr *dst_addr); 148 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 149 uint32_t *num_entries, char *buf); 150 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx); 151 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, 152 int len); 153 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len); 154 155 /* 156 * SCSI host template entry points 157 */ 158 static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 159 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 160 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 161 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 162 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 163 static int qla4xxx_sdev_init(struct scsi_device *device); 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); 166 167 /* 168 * iSCSI Flash DDB sysfs entry points 169 */ 170 static int 171 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 172 struct iscsi_bus_flash_conn *fnode_conn, 173 void *data, int len); 174 static int 175 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 176 int param, char *buf); 177 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 178 int len); 179 static int 180 qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess); 181 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 182 struct iscsi_bus_flash_conn *fnode_conn); 183 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 184 struct iscsi_bus_flash_conn *fnode_conn); 185 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess); 186 187 static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 188 QLA82XX_LEGACY_INTR_CONFIG; 189 190 static const uint32_t qla4_82xx_reg_tbl[] = { 191 QLA82XX_PEG_HALT_STATUS1, 192 QLA82XX_PEG_HALT_STATUS2, 193 QLA82XX_PEG_ALIVE_COUNTER, 194 QLA82XX_CRB_DRV_ACTIVE, 195 QLA82XX_CRB_DEV_STATE, 196 QLA82XX_CRB_DRV_STATE, 197 QLA82XX_CRB_DRV_SCRATCH, 198 QLA82XX_CRB_DEV_PART_INFO, 199 QLA82XX_CRB_DRV_IDC_VERSION, 200 QLA82XX_FW_VERSION_MAJOR, 201 QLA82XX_FW_VERSION_MINOR, 202 QLA82XX_FW_VERSION_SUB, 203 CRB_CMDPEG_STATE, 204 CRB_TEMP_STATE, 205 }; 206 207 static const uint32_t qla4_83xx_reg_tbl[] = { 208 QLA83XX_PEG_HALT_STATUS1, 209 QLA83XX_PEG_HALT_STATUS2, 210 QLA83XX_PEG_ALIVE_COUNTER, 211 QLA83XX_CRB_DRV_ACTIVE, 212 QLA83XX_CRB_DEV_STATE, 213 QLA83XX_CRB_DRV_STATE, 214 QLA83XX_CRB_DRV_SCRATCH, 215 QLA83XX_CRB_DEV_PART_INFO1, 216 QLA83XX_CRB_IDC_VER_MAJOR, 217 QLA83XX_FW_VER_MAJOR, 218 QLA83XX_FW_VER_MINOR, 219 QLA83XX_FW_VER_SUB, 220 QLA83XX_CMDPEG_STATE, 221 QLA83XX_ASIC_TEMP, 222 }; 223 224 static struct scsi_host_template qla4xxx_driver_template = { 225 .module = THIS_MODULE, 226 .name = DRIVER_NAME, 227 .proc_name = DRIVER_NAME, 228 .queuecommand = qla4xxx_queuecommand, 229 .cmd_size = sizeof(struct qla4xxx_cmd_priv), 230 231 .eh_abort_handler = qla4xxx_eh_abort, 232 .eh_device_reset_handler = qla4xxx_eh_device_reset, 233 .eh_target_reset_handler = qla4xxx_eh_target_reset, 234 .eh_host_reset_handler = qla4xxx_eh_host_reset, 235 .eh_timed_out = qla4xxx_eh_cmd_timed_out, 236 237 .sdev_init = qla4xxx_sdev_init, 238 .change_queue_depth = scsi_change_queue_depth, 239 240 .this_id = -1, 241 .cmd_per_lun = 3, 242 .sg_tablesize = SG_ALL, 243 244 .max_sectors = 0xFFFF, 245 .shost_groups = qla4xxx_host_groups, 246 .host_reset = qla4xxx_host_reset, 247 .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 248 }; 249 250 static struct iscsi_transport qla4xxx_iscsi_transport = { 251 .owner = THIS_MODULE, 252 .name = DRIVER_NAME, 253 .caps = CAP_TEXT_NEGO | 254 CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 255 CAP_DATADGST | CAP_LOGIN_OFFLOAD | 256 CAP_MULTI_R2T, 257 .attr_is_visible = qla4_attr_is_visible, 258 .create_session = qla4xxx_session_create, 259 .destroy_session = qla4xxx_session_destroy, 260 .start_conn = qla4xxx_conn_start, 261 .create_conn = qla4xxx_conn_create, 262 .bind_conn = qla4xxx_conn_bind, 263 .unbind_conn = iscsi_conn_unbind, 264 .stop_conn = iscsi_conn_stop, 265 .destroy_conn = qla4xxx_conn_destroy, 266 .set_param = iscsi_set_param, 267 .get_conn_param = qla4xxx_conn_get_param, 268 .get_session_param = qla4xxx_session_get_param, 269 .get_ep_param = qla4xxx_get_ep_param, 270 .ep_connect = qla4xxx_ep_connect, 271 .ep_poll = qla4xxx_ep_poll, 272 .ep_disconnect = qla4xxx_ep_disconnect, 273 .get_stats = qla4xxx_conn_get_stats, 274 .send_pdu = iscsi_conn_send_pdu, 275 .xmit_task = qla4xxx_task_xmit, 276 .cleanup_task = qla4xxx_task_cleanup, 277 .alloc_pdu = qla4xxx_alloc_pdu, 278 279 .get_host_param = qla4xxx_host_get_param, 280 .set_iface_param = qla4xxx_iface_set_param, 281 .get_iface_param = qla4xxx_get_iface_param, 282 .bsg_request = qla4xxx_bsg_request, 283 .send_ping = qla4xxx_send_ping, 284 .get_chap = qla4xxx_get_chap_list, 285 .delete_chap = qla4xxx_delete_chap, 286 .set_chap = qla4xxx_set_chap_entry, 287 .get_flashnode_param = qla4xxx_sysfs_ddb_get_param, 288 .set_flashnode_param = qla4xxx_sysfs_ddb_set_param, 289 .new_flashnode = qla4xxx_sysfs_ddb_add, 290 .del_flashnode = qla4xxx_sysfs_ddb_delete, 291 .login_flashnode = qla4xxx_sysfs_ddb_login, 292 .logout_flashnode = qla4xxx_sysfs_ddb_logout, 293 .logout_flashnode_sid = qla4xxx_sysfs_ddb_logout_sid, 294 .get_host_stats = qla4xxx_get_host_stats, 295 }; 296 297 static struct scsi_transport_template *qla4xxx_scsi_transport; 298 299 static int qla4xxx_isp_check_reg(struct scsi_qla_host *ha) 300 { 301 u32 reg_val = 0; 302 int rval = QLA_SUCCESS; 303 304 if (is_qla8022(ha)) 305 reg_val = readl(&ha->qla4_82xx_reg->host_status); 306 else if (is_qla8032(ha) || is_qla8042(ha)) 307 reg_val = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_ALIVE_COUNTER); 308 else 309 reg_val = readw(&ha->reg->ctrl_status); 310 311 if (reg_val == QL4_ISP_REG_DISCONNECT) 312 rval = QLA_ERROR; 313 314 return rval; 315 } 316 317 static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num, 318 uint32_t iface_type, uint32_t payload_size, 319 uint32_t pid, struct sockaddr *dst_addr) 320 { 321 struct scsi_qla_host *ha = to_qla_host(shost); 322 struct sockaddr_in *addr; 323 struct sockaddr_in6 *addr6; 324 uint32_t options = 0; 325 uint8_t ipaddr[IPv6_ADDR_LEN]; 326 int rval; 327 328 memset(ipaddr, 0, IPv6_ADDR_LEN); 329 /* IPv4 to IPv4 */ 330 if ((iface_type == ISCSI_IFACE_TYPE_IPV4) && 331 (dst_addr->sa_family == AF_INET)) { 332 addr = (struct sockaddr_in *)dst_addr; 333 memcpy(ipaddr, &addr->sin_addr.s_addr, IP_ADDR_LEN); 334 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv4 Ping src: %pI4 " 335 "dest: %pI4\n", __func__, 336 &ha->ip_config.ip_address, ipaddr)); 337 rval = qla4xxx_ping_iocb(ha, options, payload_size, pid, 338 ipaddr); 339 if (rval) 340 rval = -EINVAL; 341 } else if ((iface_type == ISCSI_IFACE_TYPE_IPV6) && 342 (dst_addr->sa_family == AF_INET6)) { 343 /* IPv6 to IPv6 */ 344 addr6 = (struct sockaddr_in6 *)dst_addr; 345 memcpy(ipaddr, &addr6->sin6_addr.in6_u.u6_addr8, IPv6_ADDR_LEN); 346 347 options |= PING_IPV6_PROTOCOL_ENABLE; 348 349 /* Ping using LinkLocal address */ 350 if ((iface_num == 0) || (iface_num == 1)) { 351 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: LinkLocal Ping " 352 "src: %pI6 dest: %pI6\n", __func__, 353 &ha->ip_config.ipv6_link_local_addr, 354 ipaddr)); 355 options |= PING_IPV6_LINKLOCAL_ADDR; 356 rval = qla4xxx_ping_iocb(ha, options, payload_size, 357 pid, ipaddr); 358 } else { 359 ql4_printk(KERN_WARNING, ha, "%s: iface num = %d " 360 "not supported\n", __func__, iface_num); 361 rval = -ENOSYS; 362 goto exit_send_ping; 363 } 364 365 /* 366 * If ping using LinkLocal address fails, try ping using 367 * IPv6 address 368 */ 369 if (rval != QLA_SUCCESS) { 370 options &= ~PING_IPV6_LINKLOCAL_ADDR; 371 if (iface_num == 0) { 372 options |= PING_IPV6_ADDR0; 373 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 374 "Ping src: %pI6 " 375 "dest: %pI6\n", __func__, 376 &ha->ip_config.ipv6_addr0, 377 ipaddr)); 378 } else if (iface_num == 1) { 379 options |= PING_IPV6_ADDR1; 380 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: IPv6 " 381 "Ping src: %pI6 " 382 "dest: %pI6\n", __func__, 383 &ha->ip_config.ipv6_addr1, 384 ipaddr)); 385 } 386 rval = qla4xxx_ping_iocb(ha, options, payload_size, 387 pid, ipaddr); 388 if (rval) 389 rval = -EINVAL; 390 } 391 } else 392 rval = -ENOSYS; 393 exit_send_ping: 394 return rval; 395 } 396 397 static umode_t qla4_attr_is_visible(int param_type, int param) 398 { 399 switch (param_type) { 400 case ISCSI_HOST_PARAM: 401 switch (param) { 402 case ISCSI_HOST_PARAM_HWADDRESS: 403 case ISCSI_HOST_PARAM_IPADDRESS: 404 case ISCSI_HOST_PARAM_INITIATOR_NAME: 405 case ISCSI_HOST_PARAM_PORT_STATE: 406 case ISCSI_HOST_PARAM_PORT_SPEED: 407 return S_IRUGO; 408 default: 409 return 0; 410 } 411 case ISCSI_PARAM: 412 switch (param) { 413 case ISCSI_PARAM_PERSISTENT_ADDRESS: 414 case ISCSI_PARAM_PERSISTENT_PORT: 415 case ISCSI_PARAM_CONN_ADDRESS: 416 case ISCSI_PARAM_CONN_PORT: 417 case ISCSI_PARAM_TARGET_NAME: 418 case ISCSI_PARAM_TPGT: 419 case ISCSI_PARAM_TARGET_ALIAS: 420 case ISCSI_PARAM_MAX_BURST: 421 case ISCSI_PARAM_MAX_R2T: 422 case ISCSI_PARAM_FIRST_BURST: 423 case ISCSI_PARAM_MAX_RECV_DLENGTH: 424 case ISCSI_PARAM_MAX_XMIT_DLENGTH: 425 case ISCSI_PARAM_IFACE_NAME: 426 case ISCSI_PARAM_CHAP_OUT_IDX: 427 case ISCSI_PARAM_CHAP_IN_IDX: 428 case ISCSI_PARAM_USERNAME: 429 case ISCSI_PARAM_PASSWORD: 430 case ISCSI_PARAM_USERNAME_IN: 431 case ISCSI_PARAM_PASSWORD_IN: 432 case ISCSI_PARAM_AUTO_SND_TGT_DISABLE: 433 case ISCSI_PARAM_DISCOVERY_SESS: 434 case ISCSI_PARAM_PORTAL_TYPE: 435 case ISCSI_PARAM_CHAP_AUTH_EN: 436 case ISCSI_PARAM_DISCOVERY_LOGOUT_EN: 437 case ISCSI_PARAM_BIDI_CHAP_EN: 438 case ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL: 439 case ISCSI_PARAM_DEF_TIME2WAIT: 440 case ISCSI_PARAM_DEF_TIME2RETAIN: 441 case ISCSI_PARAM_HDRDGST_EN: 442 case ISCSI_PARAM_DATADGST_EN: 443 case ISCSI_PARAM_INITIAL_R2T_EN: 444 case ISCSI_PARAM_IMM_DATA_EN: 445 case ISCSI_PARAM_PDU_INORDER_EN: 446 case ISCSI_PARAM_DATASEQ_INORDER_EN: 447 case ISCSI_PARAM_MAX_SEGMENT_SIZE: 448 case ISCSI_PARAM_TCP_TIMESTAMP_STAT: 449 case ISCSI_PARAM_TCP_WSF_DISABLE: 450 case ISCSI_PARAM_TCP_NAGLE_DISABLE: 451 case ISCSI_PARAM_TCP_TIMER_SCALE: 452 case ISCSI_PARAM_TCP_TIMESTAMP_EN: 453 case ISCSI_PARAM_TCP_XMIT_WSF: 454 case ISCSI_PARAM_TCP_RECV_WSF: 455 case ISCSI_PARAM_IP_FRAGMENT_DISABLE: 456 case ISCSI_PARAM_IPV4_TOS: 457 case ISCSI_PARAM_IPV6_TC: 458 case ISCSI_PARAM_IPV6_FLOW_LABEL: 459 case ISCSI_PARAM_IS_FW_ASSIGNED_IPV6: 460 case ISCSI_PARAM_KEEPALIVE_TMO: 461 case ISCSI_PARAM_LOCAL_PORT: 462 case ISCSI_PARAM_ISID: 463 case ISCSI_PARAM_TSID: 464 case ISCSI_PARAM_DEF_TASKMGMT_TMO: 465 case ISCSI_PARAM_ERL: 466 case ISCSI_PARAM_STATSN: 467 case ISCSI_PARAM_EXP_STATSN: 468 case ISCSI_PARAM_DISCOVERY_PARENT_IDX: 469 case ISCSI_PARAM_DISCOVERY_PARENT_TYPE: 470 case ISCSI_PARAM_LOCAL_IPADDR: 471 return S_IRUGO; 472 default: 473 return 0; 474 } 475 case ISCSI_NET_PARAM: 476 switch (param) { 477 case ISCSI_NET_PARAM_IPV4_ADDR: 478 case ISCSI_NET_PARAM_IPV4_SUBNET: 479 case ISCSI_NET_PARAM_IPV4_GW: 480 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 481 case ISCSI_NET_PARAM_IFACE_ENABLE: 482 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 483 case ISCSI_NET_PARAM_IPV6_ADDR: 484 case ISCSI_NET_PARAM_IPV6_ROUTER: 485 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 486 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 487 case ISCSI_NET_PARAM_VLAN_ID: 488 case ISCSI_NET_PARAM_VLAN_PRIORITY: 489 case ISCSI_NET_PARAM_VLAN_ENABLED: 490 case ISCSI_NET_PARAM_MTU: 491 case ISCSI_NET_PARAM_PORT: 492 case ISCSI_NET_PARAM_IPADDR_STATE: 493 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 494 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 495 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 496 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 497 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 498 case ISCSI_NET_PARAM_TCP_WSF: 499 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 500 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 501 case ISCSI_NET_PARAM_CACHE_ID: 502 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 503 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 504 case ISCSI_NET_PARAM_IPV4_TOS_EN: 505 case ISCSI_NET_PARAM_IPV4_TOS: 506 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 507 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 508 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 509 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 510 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 511 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 512 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 513 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 514 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 515 case ISCSI_NET_PARAM_REDIRECT_EN: 516 case ISCSI_NET_PARAM_IPV4_TTL: 517 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 518 case ISCSI_NET_PARAM_IPV6_MLD_EN: 519 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 520 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 521 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 522 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 523 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 524 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 525 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 526 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 527 return S_IRUGO; 528 default: 529 return 0; 530 } 531 case ISCSI_IFACE_PARAM: 532 switch (param) { 533 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 534 case ISCSI_IFACE_PARAM_HDRDGST_EN: 535 case ISCSI_IFACE_PARAM_DATADGST_EN: 536 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 537 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 538 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 539 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 540 case ISCSI_IFACE_PARAM_ERL: 541 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 542 case ISCSI_IFACE_PARAM_FIRST_BURST: 543 case ISCSI_IFACE_PARAM_MAX_R2T: 544 case ISCSI_IFACE_PARAM_MAX_BURST: 545 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 546 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 547 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 548 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 549 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 550 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 551 return S_IRUGO; 552 default: 553 return 0; 554 } 555 case ISCSI_FLASHNODE_PARAM: 556 switch (param) { 557 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 558 case ISCSI_FLASHNODE_PORTAL_TYPE: 559 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 560 case ISCSI_FLASHNODE_DISCOVERY_SESS: 561 case ISCSI_FLASHNODE_ENTRY_EN: 562 case ISCSI_FLASHNODE_HDR_DGST_EN: 563 case ISCSI_FLASHNODE_DATA_DGST_EN: 564 case ISCSI_FLASHNODE_IMM_DATA_EN: 565 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 566 case ISCSI_FLASHNODE_DATASEQ_INORDER: 567 case ISCSI_FLASHNODE_PDU_INORDER: 568 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 569 case ISCSI_FLASHNODE_SNACK_REQ_EN: 570 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 571 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 572 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 573 case ISCSI_FLASHNODE_ERL: 574 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 575 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 576 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 577 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 578 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 579 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 580 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 581 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 582 case ISCSI_FLASHNODE_FIRST_BURST: 583 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 584 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 585 case ISCSI_FLASHNODE_MAX_R2T: 586 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 587 case ISCSI_FLASHNODE_ISID: 588 case ISCSI_FLASHNODE_TSID: 589 case ISCSI_FLASHNODE_PORT: 590 case ISCSI_FLASHNODE_MAX_BURST: 591 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 592 case ISCSI_FLASHNODE_IPADDR: 593 case ISCSI_FLASHNODE_ALIAS: 594 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 595 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 596 case ISCSI_FLASHNODE_LOCAL_PORT: 597 case ISCSI_FLASHNODE_IPV4_TOS: 598 case ISCSI_FLASHNODE_IPV6_TC: 599 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 600 case ISCSI_FLASHNODE_NAME: 601 case ISCSI_FLASHNODE_TPGT: 602 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 603 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 604 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 605 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 606 case ISCSI_FLASHNODE_TCP_RECV_WSF: 607 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 608 case ISCSI_FLASHNODE_USERNAME: 609 case ISCSI_FLASHNODE_PASSWORD: 610 case ISCSI_FLASHNODE_STATSN: 611 case ISCSI_FLASHNODE_EXP_STATSN: 612 case ISCSI_FLASHNODE_IS_BOOT_TGT: 613 return S_IRUGO; 614 default: 615 return 0; 616 } 617 } 618 619 return 0; 620 } 621 622 /** 623 * qla4xxx_create_chap_list - Create CHAP list from FLASH 624 * @ha: pointer to adapter structure 625 * 626 * Read flash and make a list of CHAP entries, during login when a CHAP entry 627 * is received, it will be checked in this list. If entry exist then the CHAP 628 * entry index is set in the DDB. If CHAP entry does not exist in this list 629 * then a new entry is added in FLASH in CHAP table and the index obtained is 630 * used in the DDB. 631 **/ 632 static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 633 { 634 int rval = 0; 635 uint8_t *chap_flash_data = NULL; 636 uint32_t offset; 637 dma_addr_t chap_dma; 638 uint32_t chap_size = 0; 639 640 if (is_qla40XX(ha)) 641 chap_size = MAX_CHAP_ENTRIES_40XX * 642 sizeof(struct ql4_chap_table); 643 else /* Single region contains CHAP info for both 644 * ports which is divided into half for each port. 645 */ 646 chap_size = ha->hw.flt_chap_size / 2; 647 648 chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 649 &chap_dma, GFP_KERNEL); 650 if (!chap_flash_data) { 651 ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 652 return; 653 } 654 655 if (is_qla40XX(ha)) { 656 offset = FLASH_CHAP_OFFSET; 657 } else { 658 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 659 if (ha->port_num == 1) 660 offset += chap_size; 661 } 662 663 rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 664 if (rval != QLA_SUCCESS) 665 goto exit_chap_list; 666 667 if (ha->chap_list == NULL) 668 ha->chap_list = vmalloc(chap_size); 669 if (ha->chap_list == NULL) { 670 ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 671 goto exit_chap_list; 672 } 673 674 memcpy(ha->chap_list, chap_flash_data, chap_size); 675 676 exit_chap_list: 677 dma_free_coherent(&ha->pdev->dev, chap_size, chap_flash_data, chap_dma); 678 } 679 680 static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha, 681 int16_t chap_index, 682 struct ql4_chap_table **chap_entry) 683 { 684 int rval = QLA_ERROR; 685 int max_chap_entries; 686 687 if (!ha->chap_list) { 688 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 689 goto exit_get_chap; 690 } 691 692 if (is_qla80XX(ha)) 693 max_chap_entries = (ha->hw.flt_chap_size / 2) / 694 sizeof(struct ql4_chap_table); 695 else 696 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 697 698 if (chap_index > max_chap_entries) { 699 ql4_printk(KERN_ERR, ha, "Invalid Chap index\n"); 700 goto exit_get_chap; 701 } 702 703 *chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index; 704 if ((*chap_entry)->cookie != 705 cpu_to_le16(CHAP_VALID_COOKIE)) { 706 *chap_entry = NULL; 707 } else { 708 rval = QLA_SUCCESS; 709 } 710 711 exit_get_chap: 712 return rval; 713 } 714 715 /** 716 * qla4xxx_find_free_chap_index - Find the first free chap index 717 * @ha: pointer to adapter structure 718 * @chap_index: CHAP index to be returned 719 * 720 * Find the first free chap index available in the chap table 721 * 722 * Note: Caller should acquire the chap lock before getting here. 723 **/ 724 static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha, 725 uint16_t *chap_index) 726 { 727 int i, rval; 728 int free_index = -1; 729 int max_chap_entries = 0; 730 struct ql4_chap_table *chap_table; 731 732 if (is_qla80XX(ha)) 733 max_chap_entries = (ha->hw.flt_chap_size / 2) / 734 sizeof(struct ql4_chap_table); 735 else 736 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 737 738 if (!ha->chap_list) { 739 ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n"); 740 rval = QLA_ERROR; 741 goto exit_find_chap; 742 } 743 744 for (i = 0; i < max_chap_entries; i++) { 745 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 746 747 if ((chap_table->cookie != 748 cpu_to_le16(CHAP_VALID_COOKIE)) && 749 (i > MAX_RESRV_CHAP_IDX)) { 750 free_index = i; 751 break; 752 } 753 } 754 755 if (free_index != -1) { 756 *chap_index = free_index; 757 rval = QLA_SUCCESS; 758 } else { 759 rval = QLA_ERROR; 760 } 761 762 exit_find_chap: 763 return rval; 764 } 765 766 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx, 767 uint32_t *num_entries, char *buf) 768 { 769 struct scsi_qla_host *ha = to_qla_host(shost); 770 struct ql4_chap_table *chap_table; 771 struct iscsi_chap_rec *chap_rec; 772 int max_chap_entries = 0; 773 int valid_chap_entries = 0; 774 int ret = 0, i; 775 776 if (is_qla80XX(ha)) 777 max_chap_entries = (ha->hw.flt_chap_size / 2) / 778 sizeof(struct ql4_chap_table); 779 else 780 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 781 782 ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n", 783 __func__, *num_entries, chap_tbl_idx); 784 785 if (!buf) { 786 ret = -ENOMEM; 787 goto exit_get_chap_list; 788 } 789 790 qla4xxx_create_chap_list(ha); 791 792 chap_rec = (struct iscsi_chap_rec *) buf; 793 mutex_lock(&ha->chap_sem); 794 for (i = chap_tbl_idx; i < max_chap_entries; i++) { 795 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 796 if (chap_table->cookie != 797 cpu_to_le16(CHAP_VALID_COOKIE)) 798 continue; 799 800 chap_rec->chap_tbl_idx = i; 801 strscpy(chap_rec->username, chap_table->name, 802 sizeof(chap_rec->username)); 803 chap_rec->password_length = strscpy(chap_rec->password, 804 chap_table->secret, 805 sizeof(chap_rec->password)); 806 807 if (chap_table->flags & BIT_7) /* local */ 808 chap_rec->chap_type = CHAP_TYPE_OUT; 809 810 if (chap_table->flags & BIT_6) /* peer */ 811 chap_rec->chap_type = CHAP_TYPE_IN; 812 813 chap_rec++; 814 815 valid_chap_entries++; 816 if (valid_chap_entries == *num_entries) 817 break; 818 } 819 mutex_unlock(&ha->chap_sem); 820 821 exit_get_chap_list: 822 ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n", 823 __func__, valid_chap_entries); 824 *num_entries = valid_chap_entries; 825 return ret; 826 } 827 828 static int __qla4xxx_is_chap_active(struct device *dev, void *data) 829 { 830 int ret = 0; 831 uint16_t *chap_tbl_idx = (uint16_t *) data; 832 struct iscsi_cls_session *cls_session; 833 struct iscsi_session *sess; 834 struct ddb_entry *ddb_entry; 835 836 if (!iscsi_is_session_dev(dev)) 837 goto exit_is_chap_active; 838 839 cls_session = iscsi_dev_to_session(dev); 840 sess = cls_session->dd_data; 841 ddb_entry = sess->dd_data; 842 843 if (iscsi_is_session_online(cls_session)) 844 goto exit_is_chap_active; 845 846 if (ddb_entry->chap_tbl_idx == *chap_tbl_idx) 847 ret = 1; 848 849 exit_is_chap_active: 850 return ret; 851 } 852 853 static int qla4xxx_is_chap_active(struct Scsi_Host *shost, 854 uint16_t chap_tbl_idx) 855 { 856 int ret = 0; 857 858 ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx, 859 __qla4xxx_is_chap_active); 860 861 return ret; 862 } 863 864 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx) 865 { 866 struct scsi_qla_host *ha = to_qla_host(shost); 867 struct ql4_chap_table *chap_table; 868 dma_addr_t chap_dma; 869 int max_chap_entries = 0; 870 uint32_t offset = 0; 871 uint32_t chap_size; 872 int ret = 0; 873 874 chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma); 875 if (chap_table == NULL) 876 return -ENOMEM; 877 878 if (is_qla80XX(ha)) 879 max_chap_entries = (ha->hw.flt_chap_size / 2) / 880 sizeof(struct ql4_chap_table); 881 else 882 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 883 884 if (chap_tbl_idx > max_chap_entries) { 885 ret = -EINVAL; 886 goto exit_delete_chap; 887 } 888 889 /* Check if chap index is in use. 890 * If chap is in use don't delet chap entry */ 891 ret = qla4xxx_is_chap_active(shost, chap_tbl_idx); 892 if (ret) { 893 ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot " 894 "delete from flash\n", chap_tbl_idx); 895 ret = -EBUSY; 896 goto exit_delete_chap; 897 } 898 899 chap_size = sizeof(struct ql4_chap_table); 900 if (is_qla40XX(ha)) 901 offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size); 902 else { 903 offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 904 /* flt_chap_size is CHAP table size for both ports 905 * so divide it by 2 to calculate the offset for second port 906 */ 907 if (ha->port_num == 1) 908 offset += (ha->hw.flt_chap_size / 2); 909 offset += (chap_tbl_idx * chap_size); 910 } 911 912 ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 913 if (ret != QLA_SUCCESS) { 914 ret = -EINVAL; 915 goto exit_delete_chap; 916 } 917 918 DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n", 919 __le16_to_cpu(chap_table->cookie))); 920 921 if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) { 922 ql4_printk(KERN_ERR, ha, "No valid chap entry found\n"); 923 goto exit_delete_chap; 924 } 925 926 chap_table->cookie = cpu_to_le16(0xFFFF); 927 928 offset = FLASH_CHAP_OFFSET | 929 (chap_tbl_idx * sizeof(struct ql4_chap_table)); 930 ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size, 931 FLASH_OPT_RMW_COMMIT); 932 if (ret == QLA_SUCCESS && ha->chap_list) { 933 mutex_lock(&ha->chap_sem); 934 /* Update ha chap_list cache */ 935 memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx, 936 chap_table, sizeof(struct ql4_chap_table)); 937 mutex_unlock(&ha->chap_sem); 938 } 939 if (ret != QLA_SUCCESS) 940 ret = -EINVAL; 941 942 exit_delete_chap: 943 dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma); 944 return ret; 945 } 946 947 /** 948 * qla4xxx_set_chap_entry - Make chap entry with given information 949 * @shost: pointer to host 950 * @data: chap info - credentials, index and type to make chap entry 951 * @len: length of data 952 * 953 * Add or update chap entry with the given information 954 **/ 955 static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len) 956 { 957 struct scsi_qla_host *ha = to_qla_host(shost); 958 struct iscsi_chap_rec chap_rec; 959 struct ql4_chap_table *chap_entry = NULL; 960 struct iscsi_param_info *param_info; 961 struct nlattr *attr; 962 int max_chap_entries = 0; 963 int type; 964 int rem = len; 965 int rc = 0; 966 int size; 967 968 memset(&chap_rec, 0, sizeof(chap_rec)); 969 970 nla_for_each_attr(attr, data, len, rem) { 971 if (nla_len(attr) < sizeof(*param_info)) { 972 rc = -EINVAL; 973 goto exit_set_chap; 974 } 975 976 param_info = nla_data(attr); 977 978 switch (param_info->param) { 979 case ISCSI_CHAP_PARAM_INDEX: 980 chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value; 981 break; 982 case ISCSI_CHAP_PARAM_CHAP_TYPE: 983 chap_rec.chap_type = param_info->value[0]; 984 break; 985 case ISCSI_CHAP_PARAM_USERNAME: 986 size = min_t(size_t, sizeof(chap_rec.username), 987 param_info->len); 988 memcpy(chap_rec.username, param_info->value, size); 989 break; 990 case ISCSI_CHAP_PARAM_PASSWORD: 991 size = min_t(size_t, sizeof(chap_rec.password), 992 param_info->len); 993 memcpy(chap_rec.password, param_info->value, size); 994 break; 995 case ISCSI_CHAP_PARAM_PASSWORD_LEN: 996 chap_rec.password_length = param_info->value[0]; 997 break; 998 default: 999 ql4_printk(KERN_ERR, ha, 1000 "%s: No such sysfs attribute\n", __func__); 1001 rc = -ENOSYS; 1002 goto exit_set_chap; 1003 } 1004 } 1005 1006 if (chap_rec.chap_type == CHAP_TYPE_IN) 1007 type = BIDI_CHAP; 1008 else 1009 type = LOCAL_CHAP; 1010 1011 if (is_qla80XX(ha)) 1012 max_chap_entries = (ha->hw.flt_chap_size / 2) / 1013 sizeof(struct ql4_chap_table); 1014 else 1015 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 1016 1017 mutex_lock(&ha->chap_sem); 1018 if (chap_rec.chap_tbl_idx < max_chap_entries) { 1019 rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx, 1020 &chap_entry); 1021 if (!rc) { 1022 if (!(type == qla4xxx_get_chap_type(chap_entry))) { 1023 ql4_printk(KERN_INFO, ha, 1024 "Type mismatch for CHAP entry %d\n", 1025 chap_rec.chap_tbl_idx); 1026 rc = -EINVAL; 1027 goto exit_unlock_chap; 1028 } 1029 1030 /* If chap index is in use then don't modify it */ 1031 rc = qla4xxx_is_chap_active(shost, 1032 chap_rec.chap_tbl_idx); 1033 if (rc) { 1034 ql4_printk(KERN_INFO, ha, 1035 "CHAP entry %d is in use\n", 1036 chap_rec.chap_tbl_idx); 1037 rc = -EBUSY; 1038 goto exit_unlock_chap; 1039 } 1040 } 1041 } else { 1042 rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx); 1043 if (rc) { 1044 ql4_printk(KERN_INFO, ha, "CHAP entry not available\n"); 1045 rc = -EBUSY; 1046 goto exit_unlock_chap; 1047 } 1048 } 1049 1050 rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password, 1051 chap_rec.chap_tbl_idx, type); 1052 1053 exit_unlock_chap: 1054 mutex_unlock(&ha->chap_sem); 1055 1056 exit_set_chap: 1057 return rc; 1058 } 1059 1060 1061 static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len) 1062 { 1063 struct scsi_qla_host *ha = to_qla_host(shost); 1064 struct iscsi_offload_host_stats *host_stats = NULL; 1065 int host_stats_size; 1066 int ret = 0; 1067 int ddb_idx = 0; 1068 struct ql_iscsi_stats *ql_iscsi_stats = NULL; 1069 int stats_size; 1070 dma_addr_t iscsi_stats_dma; 1071 1072 DEBUG2(ql4_printk(KERN_INFO, ha, "Func: %s\n", __func__)); 1073 1074 host_stats_size = sizeof(struct iscsi_offload_host_stats); 1075 1076 if (host_stats_size != len) { 1077 ql4_printk(KERN_INFO, ha, "%s: host_stats size mismatch expected = %d, is = %d\n", 1078 __func__, len, host_stats_size); 1079 ret = -EINVAL; 1080 goto exit_host_stats; 1081 } 1082 host_stats = (struct iscsi_offload_host_stats *)buf; 1083 1084 if (!buf) { 1085 ret = -ENOMEM; 1086 goto exit_host_stats; 1087 } 1088 1089 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1090 1091 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1092 &iscsi_stats_dma, GFP_KERNEL); 1093 if (!ql_iscsi_stats) { 1094 ql4_printk(KERN_ERR, ha, 1095 "Unable to allocate memory for iscsi stats\n"); 1096 ret = -ENOMEM; 1097 goto exit_host_stats; 1098 } 1099 1100 ret = qla4xxx_get_mgmt_data(ha, ddb_idx, stats_size, 1101 iscsi_stats_dma); 1102 if (ret != QLA_SUCCESS) { 1103 ql4_printk(KERN_ERR, ha, 1104 "Unable to retrieve iscsi stats\n"); 1105 ret = -EIO; 1106 goto exit_host_stats; 1107 } 1108 host_stats->mactx_frames = le64_to_cpu(ql_iscsi_stats->mac_tx_frames); 1109 host_stats->mactx_bytes = le64_to_cpu(ql_iscsi_stats->mac_tx_bytes); 1110 host_stats->mactx_multicast_frames = 1111 le64_to_cpu(ql_iscsi_stats->mac_tx_multicast_frames); 1112 host_stats->mactx_broadcast_frames = 1113 le64_to_cpu(ql_iscsi_stats->mac_tx_broadcast_frames); 1114 host_stats->mactx_pause_frames = 1115 le64_to_cpu(ql_iscsi_stats->mac_tx_pause_frames); 1116 host_stats->mactx_control_frames = 1117 le64_to_cpu(ql_iscsi_stats->mac_tx_control_frames); 1118 host_stats->mactx_deferral = 1119 le64_to_cpu(ql_iscsi_stats->mac_tx_deferral); 1120 host_stats->mactx_excess_deferral = 1121 le64_to_cpu(ql_iscsi_stats->mac_tx_excess_deferral); 1122 host_stats->mactx_late_collision = 1123 le64_to_cpu(ql_iscsi_stats->mac_tx_late_collision); 1124 host_stats->mactx_abort = le64_to_cpu(ql_iscsi_stats->mac_tx_abort); 1125 host_stats->mactx_single_collision = 1126 le64_to_cpu(ql_iscsi_stats->mac_tx_single_collision); 1127 host_stats->mactx_multiple_collision = 1128 le64_to_cpu(ql_iscsi_stats->mac_tx_multiple_collision); 1129 host_stats->mactx_collision = 1130 le64_to_cpu(ql_iscsi_stats->mac_tx_collision); 1131 host_stats->mactx_frames_dropped = 1132 le64_to_cpu(ql_iscsi_stats->mac_tx_frames_dropped); 1133 host_stats->mactx_jumbo_frames = 1134 le64_to_cpu(ql_iscsi_stats->mac_tx_jumbo_frames); 1135 host_stats->macrx_frames = le64_to_cpu(ql_iscsi_stats->mac_rx_frames); 1136 host_stats->macrx_bytes = le64_to_cpu(ql_iscsi_stats->mac_rx_bytes); 1137 host_stats->macrx_unknown_control_frames = 1138 le64_to_cpu(ql_iscsi_stats->mac_rx_unknown_control_frames); 1139 host_stats->macrx_pause_frames = 1140 le64_to_cpu(ql_iscsi_stats->mac_rx_pause_frames); 1141 host_stats->macrx_control_frames = 1142 le64_to_cpu(ql_iscsi_stats->mac_rx_control_frames); 1143 host_stats->macrx_dribble = 1144 le64_to_cpu(ql_iscsi_stats->mac_rx_dribble); 1145 host_stats->macrx_frame_length_error = 1146 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_length_error); 1147 host_stats->macrx_jabber = le64_to_cpu(ql_iscsi_stats->mac_rx_jabber); 1148 host_stats->macrx_carrier_sense_error = 1149 le64_to_cpu(ql_iscsi_stats->mac_rx_carrier_sense_error); 1150 host_stats->macrx_frame_discarded = 1151 le64_to_cpu(ql_iscsi_stats->mac_rx_frame_discarded); 1152 host_stats->macrx_frames_dropped = 1153 le64_to_cpu(ql_iscsi_stats->mac_rx_frames_dropped); 1154 host_stats->mac_crc_error = le64_to_cpu(ql_iscsi_stats->mac_crc_error); 1155 host_stats->mac_encoding_error = 1156 le64_to_cpu(ql_iscsi_stats->mac_encoding_error); 1157 host_stats->macrx_length_error_large = 1158 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_large); 1159 host_stats->macrx_length_error_small = 1160 le64_to_cpu(ql_iscsi_stats->mac_rx_length_error_small); 1161 host_stats->macrx_multicast_frames = 1162 le64_to_cpu(ql_iscsi_stats->mac_rx_multicast_frames); 1163 host_stats->macrx_broadcast_frames = 1164 le64_to_cpu(ql_iscsi_stats->mac_rx_broadcast_frames); 1165 host_stats->iptx_packets = le64_to_cpu(ql_iscsi_stats->ip_tx_packets); 1166 host_stats->iptx_bytes = le64_to_cpu(ql_iscsi_stats->ip_tx_bytes); 1167 host_stats->iptx_fragments = 1168 le64_to_cpu(ql_iscsi_stats->ip_tx_fragments); 1169 host_stats->iprx_packets = le64_to_cpu(ql_iscsi_stats->ip_rx_packets); 1170 host_stats->iprx_bytes = le64_to_cpu(ql_iscsi_stats->ip_rx_bytes); 1171 host_stats->iprx_fragments = 1172 le64_to_cpu(ql_iscsi_stats->ip_rx_fragments); 1173 host_stats->ip_datagram_reassembly = 1174 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly); 1175 host_stats->ip_invalid_address_error = 1176 le64_to_cpu(ql_iscsi_stats->ip_invalid_address_error); 1177 host_stats->ip_error_packets = 1178 le64_to_cpu(ql_iscsi_stats->ip_error_packets); 1179 host_stats->ip_fragrx_overlap = 1180 le64_to_cpu(ql_iscsi_stats->ip_fragrx_overlap); 1181 host_stats->ip_fragrx_outoforder = 1182 le64_to_cpu(ql_iscsi_stats->ip_fragrx_outoforder); 1183 host_stats->ip_datagram_reassembly_timeout = 1184 le64_to_cpu(ql_iscsi_stats->ip_datagram_reassembly_timeout); 1185 host_stats->ipv6tx_packets = 1186 le64_to_cpu(ql_iscsi_stats->ipv6_tx_packets); 1187 host_stats->ipv6tx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_tx_bytes); 1188 host_stats->ipv6tx_fragments = 1189 le64_to_cpu(ql_iscsi_stats->ipv6_tx_fragments); 1190 host_stats->ipv6rx_packets = 1191 le64_to_cpu(ql_iscsi_stats->ipv6_rx_packets); 1192 host_stats->ipv6rx_bytes = le64_to_cpu(ql_iscsi_stats->ipv6_rx_bytes); 1193 host_stats->ipv6rx_fragments = 1194 le64_to_cpu(ql_iscsi_stats->ipv6_rx_fragments); 1195 host_stats->ipv6_datagram_reassembly = 1196 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly); 1197 host_stats->ipv6_invalid_address_error = 1198 le64_to_cpu(ql_iscsi_stats->ipv6_invalid_address_error); 1199 host_stats->ipv6_error_packets = 1200 le64_to_cpu(ql_iscsi_stats->ipv6_error_packets); 1201 host_stats->ipv6_fragrx_overlap = 1202 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_overlap); 1203 host_stats->ipv6_fragrx_outoforder = 1204 le64_to_cpu(ql_iscsi_stats->ipv6_fragrx_outoforder); 1205 host_stats->ipv6_datagram_reassembly_timeout = 1206 le64_to_cpu(ql_iscsi_stats->ipv6_datagram_reassembly_timeout); 1207 host_stats->tcptx_segments = 1208 le64_to_cpu(ql_iscsi_stats->tcp_tx_segments); 1209 host_stats->tcptx_bytes = le64_to_cpu(ql_iscsi_stats->tcp_tx_bytes); 1210 host_stats->tcprx_segments = 1211 le64_to_cpu(ql_iscsi_stats->tcp_rx_segments); 1212 host_stats->tcprx_byte = le64_to_cpu(ql_iscsi_stats->tcp_rx_byte); 1213 host_stats->tcp_duplicate_ack_retx = 1214 le64_to_cpu(ql_iscsi_stats->tcp_duplicate_ack_retx); 1215 host_stats->tcp_retx_timer_expired = 1216 le64_to_cpu(ql_iscsi_stats->tcp_retx_timer_expired); 1217 host_stats->tcprx_duplicate_ack = 1218 le64_to_cpu(ql_iscsi_stats->tcp_rx_duplicate_ack); 1219 host_stats->tcprx_pure_ackr = 1220 le64_to_cpu(ql_iscsi_stats->tcp_rx_pure_ackr); 1221 host_stats->tcptx_delayed_ack = 1222 le64_to_cpu(ql_iscsi_stats->tcp_tx_delayed_ack); 1223 host_stats->tcptx_pure_ack = 1224 le64_to_cpu(ql_iscsi_stats->tcp_tx_pure_ack); 1225 host_stats->tcprx_segment_error = 1226 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_error); 1227 host_stats->tcprx_segment_outoforder = 1228 le64_to_cpu(ql_iscsi_stats->tcp_rx_segment_outoforder); 1229 host_stats->tcprx_window_probe = 1230 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_probe); 1231 host_stats->tcprx_window_update = 1232 le64_to_cpu(ql_iscsi_stats->tcp_rx_window_update); 1233 host_stats->tcptx_window_probe_persist = 1234 le64_to_cpu(ql_iscsi_stats->tcp_tx_window_probe_persist); 1235 host_stats->ecc_error_correction = 1236 le64_to_cpu(ql_iscsi_stats->ecc_error_correction); 1237 host_stats->iscsi_pdu_tx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_tx); 1238 host_stats->iscsi_data_bytes_tx = 1239 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_tx); 1240 host_stats->iscsi_pdu_rx = le64_to_cpu(ql_iscsi_stats->iscsi_pdu_rx); 1241 host_stats->iscsi_data_bytes_rx = 1242 le64_to_cpu(ql_iscsi_stats->iscsi_data_bytes_rx); 1243 host_stats->iscsi_io_completed = 1244 le64_to_cpu(ql_iscsi_stats->iscsi_io_completed); 1245 host_stats->iscsi_unexpected_io_rx = 1246 le64_to_cpu(ql_iscsi_stats->iscsi_unexpected_io_rx); 1247 host_stats->iscsi_format_error = 1248 le64_to_cpu(ql_iscsi_stats->iscsi_format_error); 1249 host_stats->iscsi_hdr_digest_error = 1250 le64_to_cpu(ql_iscsi_stats->iscsi_hdr_digest_error); 1251 host_stats->iscsi_data_digest_error = 1252 le64_to_cpu(ql_iscsi_stats->iscsi_data_digest_error); 1253 host_stats->iscsi_sequence_error = 1254 le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error); 1255 exit_host_stats: 1256 if (ql_iscsi_stats) 1257 dma_free_coherent(&ha->pdev->dev, stats_size, 1258 ql_iscsi_stats, iscsi_stats_dma); 1259 1260 ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n", 1261 __func__); 1262 return ret; 1263 } 1264 1265 static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 1266 enum iscsi_param_type param_type, 1267 int param, char *buf) 1268 { 1269 struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 1270 struct scsi_qla_host *ha = to_qla_host(shost); 1271 int ival; 1272 char *pval = NULL; 1273 int len = -ENOSYS; 1274 1275 if (param_type == ISCSI_NET_PARAM) { 1276 switch (param) { 1277 case ISCSI_NET_PARAM_IPV4_ADDR: 1278 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1279 break; 1280 case ISCSI_NET_PARAM_IPV4_SUBNET: 1281 len = sprintf(buf, "%pI4\n", 1282 &ha->ip_config.subnet_mask); 1283 break; 1284 case ISCSI_NET_PARAM_IPV4_GW: 1285 len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 1286 break; 1287 case ISCSI_NET_PARAM_IFACE_ENABLE: 1288 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1289 OP_STATE(ha->ip_config.ipv4_options, 1290 IPOPT_IPV4_PROTOCOL_ENABLE, pval); 1291 } else { 1292 OP_STATE(ha->ip_config.ipv6_options, 1293 IPV6_OPT_IPV6_PROTOCOL_ENABLE, pval); 1294 } 1295 1296 len = sprintf(buf, "%s\n", pval); 1297 break; 1298 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 1299 len = sprintf(buf, "%s\n", 1300 (ha->ip_config.tcp_options & 1301 TCPOPT_DHCP_ENABLE) ? 1302 "dhcp" : "static"); 1303 break; 1304 case ISCSI_NET_PARAM_IPV6_ADDR: 1305 if (iface->iface_num == 0) 1306 len = sprintf(buf, "%pI6\n", 1307 &ha->ip_config.ipv6_addr0); 1308 if (iface->iface_num == 1) 1309 len = sprintf(buf, "%pI6\n", 1310 &ha->ip_config.ipv6_addr1); 1311 break; 1312 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 1313 len = sprintf(buf, "%pI6\n", 1314 &ha->ip_config.ipv6_link_local_addr); 1315 break; 1316 case ISCSI_NET_PARAM_IPV6_ROUTER: 1317 len = sprintf(buf, "%pI6\n", 1318 &ha->ip_config.ipv6_default_router_addr); 1319 break; 1320 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 1321 pval = (ha->ip_config.ipv6_addl_options & 1322 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 1323 "nd" : "static"; 1324 1325 len = sprintf(buf, "%s\n", pval); 1326 break; 1327 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 1328 pval = (ha->ip_config.ipv6_addl_options & 1329 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 1330 "auto" : "static"; 1331 1332 len = sprintf(buf, "%s\n", pval); 1333 break; 1334 case ISCSI_NET_PARAM_VLAN_ID: 1335 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1336 ival = ha->ip_config.ipv4_vlan_tag & 1337 ISCSI_MAX_VLAN_ID; 1338 else 1339 ival = ha->ip_config.ipv6_vlan_tag & 1340 ISCSI_MAX_VLAN_ID; 1341 1342 len = sprintf(buf, "%d\n", ival); 1343 break; 1344 case ISCSI_NET_PARAM_VLAN_PRIORITY: 1345 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1346 ival = (ha->ip_config.ipv4_vlan_tag >> 13) & 1347 ISCSI_MAX_VLAN_PRIORITY; 1348 else 1349 ival = (ha->ip_config.ipv6_vlan_tag >> 13) & 1350 ISCSI_MAX_VLAN_PRIORITY; 1351 1352 len = sprintf(buf, "%d\n", ival); 1353 break; 1354 case ISCSI_NET_PARAM_VLAN_ENABLED: 1355 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1356 OP_STATE(ha->ip_config.ipv4_options, 1357 IPOPT_VLAN_TAGGING_ENABLE, pval); 1358 } else { 1359 OP_STATE(ha->ip_config.ipv6_options, 1360 IPV6_OPT_VLAN_TAGGING_ENABLE, pval); 1361 } 1362 len = sprintf(buf, "%s\n", pval); 1363 break; 1364 case ISCSI_NET_PARAM_MTU: 1365 len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 1366 break; 1367 case ISCSI_NET_PARAM_PORT: 1368 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1369 len = sprintf(buf, "%d\n", 1370 ha->ip_config.ipv4_port); 1371 else 1372 len = sprintf(buf, "%d\n", 1373 ha->ip_config.ipv6_port); 1374 break; 1375 case ISCSI_NET_PARAM_IPADDR_STATE: 1376 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1377 pval = iscsi_get_ipaddress_state_name( 1378 ha->ip_config.ipv4_addr_state); 1379 } else { 1380 if (iface->iface_num == 0) 1381 pval = iscsi_get_ipaddress_state_name( 1382 ha->ip_config.ipv6_addr0_state); 1383 else if (iface->iface_num == 1) 1384 pval = iscsi_get_ipaddress_state_name( 1385 ha->ip_config.ipv6_addr1_state); 1386 } 1387 1388 len = sprintf(buf, "%s\n", pval); 1389 break; 1390 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE: 1391 pval = iscsi_get_ipaddress_state_name( 1392 ha->ip_config.ipv6_link_local_state); 1393 len = sprintf(buf, "%s\n", pval); 1394 break; 1395 case ISCSI_NET_PARAM_IPV6_ROUTER_STATE: 1396 pval = iscsi_get_router_state_name( 1397 ha->ip_config.ipv6_default_router_state); 1398 len = sprintf(buf, "%s\n", pval); 1399 break; 1400 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 1401 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1402 OP_STATE(~ha->ip_config.tcp_options, 1403 TCPOPT_DELAYED_ACK_DISABLE, pval); 1404 } else { 1405 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1406 IPV6_TCPOPT_DELAYED_ACK_DISABLE, pval); 1407 } 1408 len = sprintf(buf, "%s\n", pval); 1409 break; 1410 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 1411 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1412 OP_STATE(~ha->ip_config.tcp_options, 1413 TCPOPT_NAGLE_ALGO_DISABLE, pval); 1414 } else { 1415 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1416 IPV6_TCPOPT_NAGLE_ALGO_DISABLE, pval); 1417 } 1418 len = sprintf(buf, "%s\n", pval); 1419 break; 1420 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 1421 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1422 OP_STATE(~ha->ip_config.tcp_options, 1423 TCPOPT_WINDOW_SCALE_DISABLE, pval); 1424 } else { 1425 OP_STATE(~ha->ip_config.ipv6_tcp_options, 1426 IPV6_TCPOPT_WINDOW_SCALE_DISABLE, 1427 pval); 1428 } 1429 len = sprintf(buf, "%s\n", pval); 1430 break; 1431 case ISCSI_NET_PARAM_TCP_WSF: 1432 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1433 len = sprintf(buf, "%d\n", 1434 ha->ip_config.tcp_wsf); 1435 else 1436 len = sprintf(buf, "%d\n", 1437 ha->ip_config.ipv6_tcp_wsf); 1438 break; 1439 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 1440 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1441 ival = (ha->ip_config.tcp_options & 1442 TCPOPT_TIMER_SCALE) >> 1; 1443 else 1444 ival = (ha->ip_config.ipv6_tcp_options & 1445 IPV6_TCPOPT_TIMER_SCALE) >> 1; 1446 1447 len = sprintf(buf, "%d\n", ival); 1448 break; 1449 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 1450 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1451 OP_STATE(ha->ip_config.tcp_options, 1452 TCPOPT_TIMESTAMP_ENABLE, pval); 1453 } else { 1454 OP_STATE(ha->ip_config.ipv6_tcp_options, 1455 IPV6_TCPOPT_TIMESTAMP_EN, pval); 1456 } 1457 len = sprintf(buf, "%s\n", pval); 1458 break; 1459 case ISCSI_NET_PARAM_CACHE_ID: 1460 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 1461 len = sprintf(buf, "%d\n", 1462 ha->ip_config.ipv4_cache_id); 1463 else 1464 len = sprintf(buf, "%d\n", 1465 ha->ip_config.ipv6_cache_id); 1466 break; 1467 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 1468 OP_STATE(ha->ip_config.tcp_options, 1469 TCPOPT_DNS_SERVER_IP_EN, pval); 1470 1471 len = sprintf(buf, "%s\n", pval); 1472 break; 1473 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 1474 OP_STATE(ha->ip_config.tcp_options, 1475 TCPOPT_SLP_DA_INFO_EN, pval); 1476 1477 len = sprintf(buf, "%s\n", pval); 1478 break; 1479 case ISCSI_NET_PARAM_IPV4_TOS_EN: 1480 OP_STATE(ha->ip_config.ipv4_options, 1481 IPOPT_IPV4_TOS_EN, pval); 1482 1483 len = sprintf(buf, "%s\n", pval); 1484 break; 1485 case ISCSI_NET_PARAM_IPV4_TOS: 1486 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_tos); 1487 break; 1488 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 1489 OP_STATE(ha->ip_config.ipv4_options, 1490 IPOPT_GRAT_ARP_EN, pval); 1491 1492 len = sprintf(buf, "%s\n", pval); 1493 break; 1494 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 1495 OP_STATE(ha->ip_config.ipv4_options, IPOPT_ALT_CID_EN, 1496 pval); 1497 1498 len = sprintf(buf, "%s\n", pval); 1499 break; 1500 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 1501 pval = (ha->ip_config.ipv4_alt_cid_len) ? 1502 (char *)ha->ip_config.ipv4_alt_cid : ""; 1503 1504 len = sprintf(buf, "%s\n", pval); 1505 break; 1506 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 1507 OP_STATE(ha->ip_config.ipv4_options, 1508 IPOPT_REQ_VID_EN, pval); 1509 1510 len = sprintf(buf, "%s\n", pval); 1511 break; 1512 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 1513 OP_STATE(ha->ip_config.ipv4_options, 1514 IPOPT_USE_VID_EN, pval); 1515 1516 len = sprintf(buf, "%s\n", pval); 1517 break; 1518 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 1519 pval = (ha->ip_config.ipv4_vid_len) ? 1520 (char *)ha->ip_config.ipv4_vid : ""; 1521 1522 len = sprintf(buf, "%s\n", pval); 1523 break; 1524 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 1525 OP_STATE(ha->ip_config.ipv4_options, 1526 IPOPT_LEARN_IQN_EN, pval); 1527 1528 len = sprintf(buf, "%s\n", pval); 1529 break; 1530 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 1531 OP_STATE(~ha->ip_config.ipv4_options, 1532 IPOPT_FRAGMENTATION_DISABLE, pval); 1533 1534 len = sprintf(buf, "%s\n", pval); 1535 break; 1536 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 1537 OP_STATE(ha->ip_config.ipv4_options, 1538 IPOPT_IN_FORWARD_EN, pval); 1539 1540 len = sprintf(buf, "%s\n", pval); 1541 break; 1542 case ISCSI_NET_PARAM_REDIRECT_EN: 1543 if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) { 1544 OP_STATE(ha->ip_config.ipv4_options, 1545 IPOPT_ARP_REDIRECT_EN, pval); 1546 } else { 1547 OP_STATE(ha->ip_config.ipv6_options, 1548 IPV6_OPT_REDIRECT_EN, pval); 1549 } 1550 len = sprintf(buf, "%s\n", pval); 1551 break; 1552 case ISCSI_NET_PARAM_IPV4_TTL: 1553 len = sprintf(buf, "%d\n", ha->ip_config.ipv4_ttl); 1554 break; 1555 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 1556 OP_STATE(ha->ip_config.ipv6_options, 1557 IPV6_OPT_GRAT_NEIGHBOR_ADV_EN, pval); 1558 1559 len = sprintf(buf, "%s\n", pval); 1560 break; 1561 case ISCSI_NET_PARAM_IPV6_MLD_EN: 1562 OP_STATE(ha->ip_config.ipv6_addl_options, 1563 IPV6_ADDOPT_MLD_EN, pval); 1564 1565 len = sprintf(buf, "%s\n", pval); 1566 break; 1567 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 1568 len = sprintf(buf, "%u\n", ha->ip_config.ipv6_flow_lbl); 1569 break; 1570 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 1571 len = sprintf(buf, "%d\n", 1572 ha->ip_config.ipv6_traffic_class); 1573 break; 1574 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 1575 len = sprintf(buf, "%d\n", 1576 ha->ip_config.ipv6_hop_limit); 1577 break; 1578 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 1579 len = sprintf(buf, "%d\n", 1580 ha->ip_config.ipv6_nd_reach_time); 1581 break; 1582 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 1583 len = sprintf(buf, "%d\n", 1584 ha->ip_config.ipv6_nd_rexmit_timer); 1585 break; 1586 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 1587 len = sprintf(buf, "%d\n", 1588 ha->ip_config.ipv6_nd_stale_timeout); 1589 break; 1590 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 1591 len = sprintf(buf, "%d\n", 1592 ha->ip_config.ipv6_dup_addr_detect_count); 1593 break; 1594 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 1595 len = sprintf(buf, "%d\n", 1596 ha->ip_config.ipv6_gw_advrt_mtu); 1597 break; 1598 default: 1599 len = -ENOSYS; 1600 } 1601 } else if (param_type == ISCSI_IFACE_PARAM) { 1602 switch (param) { 1603 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 1604 len = sprintf(buf, "%d\n", ha->ip_config.def_timeout); 1605 break; 1606 case ISCSI_IFACE_PARAM_HDRDGST_EN: 1607 OP_STATE(ha->ip_config.iscsi_options, 1608 ISCSIOPTS_HEADER_DIGEST_EN, pval); 1609 1610 len = sprintf(buf, "%s\n", pval); 1611 break; 1612 case ISCSI_IFACE_PARAM_DATADGST_EN: 1613 OP_STATE(ha->ip_config.iscsi_options, 1614 ISCSIOPTS_DATA_DIGEST_EN, pval); 1615 1616 len = sprintf(buf, "%s\n", pval); 1617 break; 1618 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 1619 OP_STATE(ha->ip_config.iscsi_options, 1620 ISCSIOPTS_IMMEDIATE_DATA_EN, pval); 1621 1622 len = sprintf(buf, "%s\n", pval); 1623 break; 1624 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 1625 OP_STATE(ha->ip_config.iscsi_options, 1626 ISCSIOPTS_INITIAL_R2T_EN, pval); 1627 1628 len = sprintf(buf, "%s\n", pval); 1629 break; 1630 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 1631 OP_STATE(ha->ip_config.iscsi_options, 1632 ISCSIOPTS_DATA_SEQ_INORDER_EN, pval); 1633 1634 len = sprintf(buf, "%s\n", pval); 1635 break; 1636 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 1637 OP_STATE(ha->ip_config.iscsi_options, 1638 ISCSIOPTS_DATA_PDU_INORDER_EN, pval); 1639 1640 len = sprintf(buf, "%s\n", pval); 1641 break; 1642 case ISCSI_IFACE_PARAM_ERL: 1643 len = sprintf(buf, "%d\n", 1644 (ha->ip_config.iscsi_options & 1645 ISCSIOPTS_ERL)); 1646 break; 1647 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 1648 len = sprintf(buf, "%u\n", 1649 ha->ip_config.iscsi_max_pdu_size * 1650 BYTE_UNITS); 1651 break; 1652 case ISCSI_IFACE_PARAM_FIRST_BURST: 1653 len = sprintf(buf, "%u\n", 1654 ha->ip_config.iscsi_first_burst_len * 1655 BYTE_UNITS); 1656 break; 1657 case ISCSI_IFACE_PARAM_MAX_R2T: 1658 len = sprintf(buf, "%d\n", 1659 ha->ip_config.iscsi_max_outstnd_r2t); 1660 break; 1661 case ISCSI_IFACE_PARAM_MAX_BURST: 1662 len = sprintf(buf, "%u\n", 1663 ha->ip_config.iscsi_max_burst_len * 1664 BYTE_UNITS); 1665 break; 1666 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 1667 OP_STATE(ha->ip_config.iscsi_options, 1668 ISCSIOPTS_CHAP_AUTH_EN, pval); 1669 1670 len = sprintf(buf, "%s\n", pval); 1671 break; 1672 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 1673 OP_STATE(ha->ip_config.iscsi_options, 1674 ISCSIOPTS_BIDI_CHAP_EN, pval); 1675 1676 len = sprintf(buf, "%s\n", pval); 1677 break; 1678 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 1679 OP_STATE(ha->ip_config.iscsi_options, 1680 ISCSIOPTS_DISCOVERY_AUTH_EN, pval); 1681 1682 len = sprintf(buf, "%s\n", pval); 1683 break; 1684 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 1685 OP_STATE(ha->ip_config.iscsi_options, 1686 ISCSIOPTS_DISCOVERY_LOGOUT_EN, pval); 1687 1688 len = sprintf(buf, "%s\n", pval); 1689 break; 1690 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 1691 OP_STATE(ha->ip_config.iscsi_options, 1692 ISCSIOPTS_STRICT_LOGIN_COMP_EN, pval); 1693 1694 len = sprintf(buf, "%s\n", pval); 1695 break; 1696 case ISCSI_IFACE_PARAM_INITIATOR_NAME: 1697 len = sprintf(buf, "%s\n", ha->ip_config.iscsi_name); 1698 break; 1699 default: 1700 len = -ENOSYS; 1701 } 1702 } 1703 1704 return len; 1705 } 1706 1707 static struct iscsi_endpoint * 1708 qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 1709 int non_blocking) 1710 { 1711 int ret; 1712 struct iscsi_endpoint *ep; 1713 struct qla_endpoint *qla_ep; 1714 struct scsi_qla_host *ha; 1715 struct sockaddr_in *addr; 1716 struct sockaddr_in6 *addr6; 1717 1718 if (!shost) { 1719 ret = -ENXIO; 1720 pr_err("%s: shost is NULL\n", __func__); 1721 return ERR_PTR(ret); 1722 } 1723 1724 ha = iscsi_host_priv(shost); 1725 ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 1726 if (!ep) { 1727 ret = -ENOMEM; 1728 return ERR_PTR(ret); 1729 } 1730 1731 qla_ep = ep->dd_data; 1732 memset(qla_ep, 0, sizeof(struct qla_endpoint)); 1733 if (dst_addr->sa_family == AF_INET) { 1734 memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 1735 addr = (struct sockaddr_in *)&qla_ep->dst_addr; 1736 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 1737 (char *)&addr->sin_addr)); 1738 } else if (dst_addr->sa_family == AF_INET6) { 1739 memcpy(&qla_ep->dst_addr, dst_addr, 1740 sizeof(struct sockaddr_in6)); 1741 addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 1742 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 1743 (char *)&addr6->sin6_addr)); 1744 } else { 1745 ql4_printk(KERN_WARNING, ha, "%s: Invalid endpoint\n", 1746 __func__); 1747 } 1748 1749 qla_ep->host = shost; 1750 1751 return ep; 1752 } 1753 1754 static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 1755 { 1756 struct qla_endpoint *qla_ep; 1757 struct scsi_qla_host *ha; 1758 int ret = 0; 1759 1760 qla_ep = ep->dd_data; 1761 ha = to_qla_host(qla_ep->host); 1762 DEBUG2(pr_info_ratelimited("%s: host: %ld\n", __func__, ha->host_no)); 1763 1764 if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 1765 ret = 1; 1766 1767 return ret; 1768 } 1769 1770 static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 1771 { 1772 struct qla_endpoint *qla_ep; 1773 struct scsi_qla_host *ha; 1774 1775 qla_ep = ep->dd_data; 1776 ha = to_qla_host(qla_ep->host); 1777 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1778 ha->host_no)); 1779 iscsi_destroy_endpoint(ep); 1780 } 1781 1782 static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 1783 enum iscsi_param param, 1784 char *buf) 1785 { 1786 struct qla_endpoint *qla_ep = ep->dd_data; 1787 struct sockaddr *dst_addr; 1788 struct scsi_qla_host *ha; 1789 1790 if (!qla_ep) 1791 return -ENOTCONN; 1792 1793 ha = to_qla_host(qla_ep->host); 1794 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1795 ha->host_no)); 1796 1797 switch (param) { 1798 case ISCSI_PARAM_CONN_PORT: 1799 case ISCSI_PARAM_CONN_ADDRESS: 1800 dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1801 if (!dst_addr) 1802 return -ENOTCONN; 1803 1804 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1805 &qla_ep->dst_addr, param, buf); 1806 default: 1807 return -ENOSYS; 1808 } 1809 } 1810 1811 static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 1812 struct iscsi_stats *stats) 1813 { 1814 struct iscsi_session *sess; 1815 struct iscsi_cls_session *cls_sess; 1816 struct ddb_entry *ddb_entry; 1817 struct scsi_qla_host *ha; 1818 struct ql_iscsi_stats *ql_iscsi_stats; 1819 int stats_size; 1820 int ret; 1821 dma_addr_t iscsi_stats_dma; 1822 1823 cls_sess = iscsi_conn_to_session(cls_conn); 1824 sess = cls_sess->dd_data; 1825 ddb_entry = sess->dd_data; 1826 ha = ddb_entry->ha; 1827 1828 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 1829 ha->host_no)); 1830 stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 1831 /* Allocate memory */ 1832 ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 1833 &iscsi_stats_dma, GFP_KERNEL); 1834 if (!ql_iscsi_stats) { 1835 ql4_printk(KERN_ERR, ha, 1836 "Unable to allocate memory for iscsi stats\n"); 1837 goto exit_get_stats; 1838 } 1839 1840 ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 1841 iscsi_stats_dma); 1842 if (ret != QLA_SUCCESS) { 1843 ql4_printk(KERN_ERR, ha, 1844 "Unable to retrieve iscsi stats\n"); 1845 goto free_stats; 1846 } 1847 1848 /* octets */ 1849 stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 1850 stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 1851 /* xmit pdus */ 1852 stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 1853 stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 1854 stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 1855 stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 1856 stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 1857 stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 1858 stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 1859 stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 1860 /* recv pdus */ 1861 stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 1862 stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 1863 stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 1864 stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 1865 stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 1866 stats->logoutrsp_pdus = 1867 le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 1868 stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 1869 stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 1870 stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 1871 1872 free_stats: 1873 dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 1874 iscsi_stats_dma); 1875 exit_get_stats: 1876 return; 1877 } 1878 1879 static enum scsi_timeout_action qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 1880 { 1881 struct iscsi_cls_session *session; 1882 unsigned long flags; 1883 enum scsi_timeout_action ret = SCSI_EH_NOT_HANDLED; 1884 1885 session = starget_to_session(scsi_target(sc->device)); 1886 1887 spin_lock_irqsave(&session->lock, flags); 1888 if (session->state == ISCSI_SESSION_FAILED) 1889 ret = SCSI_EH_RESET_TIMER; 1890 spin_unlock_irqrestore(&session->lock, flags); 1891 1892 return ret; 1893 } 1894 1895 static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 1896 { 1897 struct scsi_qla_host *ha = to_qla_host(shost); 1898 struct iscsi_cls_host *ihost = shost->shost_data; 1899 uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 1900 1901 qla4xxx_get_firmware_state(ha); 1902 1903 switch (ha->addl_fw_state & 0x0F00) { 1904 case FW_ADDSTATE_LINK_SPEED_10MBPS: 1905 speed = ISCSI_PORT_SPEED_10MBPS; 1906 break; 1907 case FW_ADDSTATE_LINK_SPEED_100MBPS: 1908 speed = ISCSI_PORT_SPEED_100MBPS; 1909 break; 1910 case FW_ADDSTATE_LINK_SPEED_1GBPS: 1911 speed = ISCSI_PORT_SPEED_1GBPS; 1912 break; 1913 case FW_ADDSTATE_LINK_SPEED_10GBPS: 1914 speed = ISCSI_PORT_SPEED_10GBPS; 1915 break; 1916 } 1917 ihost->port_speed = speed; 1918 } 1919 1920 static void qla4xxx_set_port_state(struct Scsi_Host *shost) 1921 { 1922 struct scsi_qla_host *ha = to_qla_host(shost); 1923 struct iscsi_cls_host *ihost = shost->shost_data; 1924 uint32_t state = ISCSI_PORT_STATE_DOWN; 1925 1926 if (test_bit(AF_LINK_UP, &ha->flags)) 1927 state = ISCSI_PORT_STATE_UP; 1928 1929 ihost->port_state = state; 1930 } 1931 1932 static int qla4xxx_host_get_param(struct Scsi_Host *shost, 1933 enum iscsi_host_param param, char *buf) 1934 { 1935 struct scsi_qla_host *ha = to_qla_host(shost); 1936 int len; 1937 1938 switch (param) { 1939 case ISCSI_HOST_PARAM_HWADDRESS: 1940 len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 1941 break; 1942 case ISCSI_HOST_PARAM_IPADDRESS: 1943 len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 1944 break; 1945 case ISCSI_HOST_PARAM_INITIATOR_NAME: 1946 len = sprintf(buf, "%s\n", ha->name_string); 1947 break; 1948 case ISCSI_HOST_PARAM_PORT_STATE: 1949 qla4xxx_set_port_state(shost); 1950 len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 1951 break; 1952 case ISCSI_HOST_PARAM_PORT_SPEED: 1953 qla4xxx_set_port_speed(shost); 1954 len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 1955 break; 1956 default: 1957 return -ENOSYS; 1958 } 1959 1960 return len; 1961 } 1962 1963 static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 1964 { 1965 if (ha->iface_ipv4) 1966 return; 1967 1968 /* IPv4 */ 1969 ha->iface_ipv4 = iscsi_create_iface(ha->host, 1970 &qla4xxx_iscsi_transport, 1971 ISCSI_IFACE_TYPE_IPV4, 0, 0); 1972 if (!ha->iface_ipv4) 1973 ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 1974 "iface0.\n"); 1975 } 1976 1977 static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 1978 { 1979 if (!ha->iface_ipv6_0) 1980 /* IPv6 iface-0 */ 1981 ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 1982 &qla4xxx_iscsi_transport, 1983 ISCSI_IFACE_TYPE_IPV6, 0, 1984 0); 1985 if (!ha->iface_ipv6_0) 1986 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1987 "iface0.\n"); 1988 1989 if (!ha->iface_ipv6_1) 1990 /* IPv6 iface-1 */ 1991 ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 1992 &qla4xxx_iscsi_transport, 1993 ISCSI_IFACE_TYPE_IPV6, 1, 1994 0); 1995 if (!ha->iface_ipv6_1) 1996 ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 1997 "iface1.\n"); 1998 } 1999 2000 static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 2001 { 2002 if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 2003 qla4xxx_create_ipv4_iface(ha); 2004 2005 if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 2006 qla4xxx_create_ipv6_iface(ha); 2007 } 2008 2009 static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 2010 { 2011 if (ha->iface_ipv4) { 2012 iscsi_destroy_iface(ha->iface_ipv4); 2013 ha->iface_ipv4 = NULL; 2014 } 2015 } 2016 2017 static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 2018 { 2019 if (ha->iface_ipv6_0) { 2020 iscsi_destroy_iface(ha->iface_ipv6_0); 2021 ha->iface_ipv6_0 = NULL; 2022 } 2023 if (ha->iface_ipv6_1) { 2024 iscsi_destroy_iface(ha->iface_ipv6_1); 2025 ha->iface_ipv6_1 = NULL; 2026 } 2027 } 2028 2029 static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 2030 { 2031 qla4xxx_destroy_ipv4_iface(ha); 2032 qla4xxx_destroy_ipv6_iface(ha); 2033 } 2034 2035 static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 2036 struct iscsi_iface_param_info *iface_param, 2037 struct addr_ctrl_blk *init_fw_cb) 2038 { 2039 /* 2040 * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 2041 * iface_num 1 is valid only for IPv6 Addr. 2042 */ 2043 switch (iface_param->param) { 2044 case ISCSI_NET_PARAM_IPV6_ADDR: 2045 if (iface_param->iface_num & 0x1) 2046 /* IPv6 Addr 1 */ 2047 memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 2048 sizeof(init_fw_cb->ipv6_addr1)); 2049 else 2050 /* IPv6 Addr 0 */ 2051 memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 2052 sizeof(init_fw_cb->ipv6_addr0)); 2053 break; 2054 case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 2055 if (iface_param->iface_num & 0x1) 2056 break; 2057 memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 2058 sizeof(init_fw_cb->ipv6_if_id)); 2059 break; 2060 case ISCSI_NET_PARAM_IPV6_ROUTER: 2061 if (iface_param->iface_num & 0x1) 2062 break; 2063 memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 2064 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2065 break; 2066 case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 2067 /* Autocfg applies to even interface */ 2068 if (iface_param->iface_num & 0x1) 2069 break; 2070 2071 if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 2072 init_fw_cb->ipv6_addtl_opts &= 2073 cpu_to_le16( 2074 ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2075 else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 2076 init_fw_cb->ipv6_addtl_opts |= 2077 cpu_to_le16( 2078 IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 2079 else 2080 ql4_printk(KERN_ERR, ha, 2081 "Invalid autocfg setting for IPv6 addr\n"); 2082 break; 2083 case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2084 /* Autocfg applies to even interface */ 2085 if (iface_param->iface_num & 0x1) 2086 break; 2087 2088 if (iface_param->value[0] == 2089 ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 2090 init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 2091 IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2092 else if (iface_param->value[0] == 2093 ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 2094 init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 2095 ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 2096 else 2097 ql4_printk(KERN_ERR, ha, 2098 "Invalid autocfg setting for IPv6 linklocal addr\n"); 2099 break; 2100 case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 2101 /* Autocfg applies to even interface */ 2102 if (iface_param->iface_num & 0x1) 2103 break; 2104 2105 if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 2106 memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 2107 sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 2108 break; 2109 case ISCSI_NET_PARAM_IFACE_ENABLE: 2110 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2111 init_fw_cb->ipv6_opts |= 2112 cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 2113 qla4xxx_create_ipv6_iface(ha); 2114 } else { 2115 init_fw_cb->ipv6_opts &= 2116 cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 2117 0xFFFF); 2118 qla4xxx_destroy_ipv6_iface(ha); 2119 } 2120 break; 2121 case ISCSI_NET_PARAM_VLAN_TAG: 2122 if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 2123 break; 2124 init_fw_cb->ipv6_vlan_tag = 2125 cpu_to_be16(*(uint16_t *)iface_param->value); 2126 break; 2127 case ISCSI_NET_PARAM_VLAN_ENABLED: 2128 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2129 init_fw_cb->ipv6_opts |= 2130 cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 2131 else 2132 init_fw_cb->ipv6_opts &= 2133 cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 2134 break; 2135 case ISCSI_NET_PARAM_MTU: 2136 init_fw_cb->eth_mtu_size = 2137 cpu_to_le16(*(uint16_t *)iface_param->value); 2138 break; 2139 case ISCSI_NET_PARAM_PORT: 2140 /* Autocfg applies to even interface */ 2141 if (iface_param->iface_num & 0x1) 2142 break; 2143 2144 init_fw_cb->ipv6_port = 2145 cpu_to_le16(*(uint16_t *)iface_param->value); 2146 break; 2147 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2148 if (iface_param->iface_num & 0x1) 2149 break; 2150 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2151 init_fw_cb->ipv6_tcp_opts |= 2152 cpu_to_le16(IPV6_TCPOPT_DELAYED_ACK_DISABLE); 2153 else 2154 init_fw_cb->ipv6_tcp_opts &= 2155 cpu_to_le16(~IPV6_TCPOPT_DELAYED_ACK_DISABLE & 2156 0xFFFF); 2157 break; 2158 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2159 if (iface_param->iface_num & 0x1) 2160 break; 2161 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2162 init_fw_cb->ipv6_tcp_opts |= 2163 cpu_to_le16(IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2164 else 2165 init_fw_cb->ipv6_tcp_opts &= 2166 cpu_to_le16(~IPV6_TCPOPT_NAGLE_ALGO_DISABLE); 2167 break; 2168 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2169 if (iface_param->iface_num & 0x1) 2170 break; 2171 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2172 init_fw_cb->ipv6_tcp_opts |= 2173 cpu_to_le16(IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2174 else 2175 init_fw_cb->ipv6_tcp_opts &= 2176 cpu_to_le16(~IPV6_TCPOPT_WINDOW_SCALE_DISABLE); 2177 break; 2178 case ISCSI_NET_PARAM_TCP_WSF: 2179 if (iface_param->iface_num & 0x1) 2180 break; 2181 init_fw_cb->ipv6_tcp_wsf = iface_param->value[0]; 2182 break; 2183 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2184 if (iface_param->iface_num & 0x1) 2185 break; 2186 init_fw_cb->ipv6_tcp_opts &= 2187 cpu_to_le16(~IPV6_TCPOPT_TIMER_SCALE); 2188 init_fw_cb->ipv6_tcp_opts |= 2189 cpu_to_le16((iface_param->value[0] << 1) & 2190 IPV6_TCPOPT_TIMER_SCALE); 2191 break; 2192 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2193 if (iface_param->iface_num & 0x1) 2194 break; 2195 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2196 init_fw_cb->ipv6_tcp_opts |= 2197 cpu_to_le16(IPV6_TCPOPT_TIMESTAMP_EN); 2198 else 2199 init_fw_cb->ipv6_tcp_opts &= 2200 cpu_to_le16(~IPV6_TCPOPT_TIMESTAMP_EN); 2201 break; 2202 case ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN: 2203 if (iface_param->iface_num & 0x1) 2204 break; 2205 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2206 init_fw_cb->ipv6_opts |= 2207 cpu_to_le16(IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2208 else 2209 init_fw_cb->ipv6_opts &= 2210 cpu_to_le16(~IPV6_OPT_GRAT_NEIGHBOR_ADV_EN); 2211 break; 2212 case ISCSI_NET_PARAM_REDIRECT_EN: 2213 if (iface_param->iface_num & 0x1) 2214 break; 2215 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2216 init_fw_cb->ipv6_opts |= 2217 cpu_to_le16(IPV6_OPT_REDIRECT_EN); 2218 else 2219 init_fw_cb->ipv6_opts &= 2220 cpu_to_le16(~IPV6_OPT_REDIRECT_EN); 2221 break; 2222 case ISCSI_NET_PARAM_IPV6_MLD_EN: 2223 if (iface_param->iface_num & 0x1) 2224 break; 2225 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2226 init_fw_cb->ipv6_addtl_opts |= 2227 cpu_to_le16(IPV6_ADDOPT_MLD_EN); 2228 else 2229 init_fw_cb->ipv6_addtl_opts &= 2230 cpu_to_le16(~IPV6_ADDOPT_MLD_EN); 2231 break; 2232 case ISCSI_NET_PARAM_IPV6_FLOW_LABEL: 2233 if (iface_param->iface_num & 0x1) 2234 break; 2235 init_fw_cb->ipv6_flow_lbl = 2236 cpu_to_le16(*(uint16_t *)iface_param->value); 2237 break; 2238 case ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS: 2239 if (iface_param->iface_num & 0x1) 2240 break; 2241 init_fw_cb->ipv6_traffic_class = iface_param->value[0]; 2242 break; 2243 case ISCSI_NET_PARAM_IPV6_HOP_LIMIT: 2244 if (iface_param->iface_num & 0x1) 2245 break; 2246 init_fw_cb->ipv6_hop_limit = iface_param->value[0]; 2247 break; 2248 case ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO: 2249 if (iface_param->iface_num & 0x1) 2250 break; 2251 init_fw_cb->ipv6_nd_reach_time = 2252 cpu_to_le32(*(uint32_t *)iface_param->value); 2253 break; 2254 case ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME: 2255 if (iface_param->iface_num & 0x1) 2256 break; 2257 init_fw_cb->ipv6_nd_rexmit_timer = 2258 cpu_to_le32(*(uint32_t *)iface_param->value); 2259 break; 2260 case ISCSI_NET_PARAM_IPV6_ND_STALE_TMO: 2261 if (iface_param->iface_num & 0x1) 2262 break; 2263 init_fw_cb->ipv6_nd_stale_timeout = 2264 cpu_to_le32(*(uint32_t *)iface_param->value); 2265 break; 2266 case ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT: 2267 if (iface_param->iface_num & 0x1) 2268 break; 2269 init_fw_cb->ipv6_dup_addr_detect_count = iface_param->value[0]; 2270 break; 2271 case ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU: 2272 if (iface_param->iface_num & 0x1) 2273 break; 2274 init_fw_cb->ipv6_gw_advrt_mtu = 2275 cpu_to_le32(*(uint32_t *)iface_param->value); 2276 break; 2277 default: 2278 ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 2279 iface_param->param); 2280 break; 2281 } 2282 } 2283 2284 static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 2285 struct iscsi_iface_param_info *iface_param, 2286 struct addr_ctrl_blk *init_fw_cb) 2287 { 2288 switch (iface_param->param) { 2289 case ISCSI_NET_PARAM_IPV4_ADDR: 2290 memcpy(init_fw_cb->ipv4_addr, iface_param->value, 2291 sizeof(init_fw_cb->ipv4_addr)); 2292 break; 2293 case ISCSI_NET_PARAM_IPV4_SUBNET: 2294 memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 2295 sizeof(init_fw_cb->ipv4_subnet)); 2296 break; 2297 case ISCSI_NET_PARAM_IPV4_GW: 2298 memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 2299 sizeof(init_fw_cb->ipv4_gw_addr)); 2300 break; 2301 case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 2302 if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 2303 init_fw_cb->ipv4_tcp_opts |= 2304 cpu_to_le16(TCPOPT_DHCP_ENABLE); 2305 else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 2306 init_fw_cb->ipv4_tcp_opts &= 2307 cpu_to_le16(~TCPOPT_DHCP_ENABLE); 2308 else 2309 ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 2310 break; 2311 case ISCSI_NET_PARAM_IFACE_ENABLE: 2312 if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 2313 init_fw_cb->ipv4_ip_opts |= 2314 cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 2315 qla4xxx_create_ipv4_iface(ha); 2316 } else { 2317 init_fw_cb->ipv4_ip_opts &= 2318 cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 2319 0xFFFF); 2320 qla4xxx_destroy_ipv4_iface(ha); 2321 } 2322 break; 2323 case ISCSI_NET_PARAM_VLAN_TAG: 2324 if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 2325 break; 2326 init_fw_cb->ipv4_vlan_tag = 2327 cpu_to_be16(*(uint16_t *)iface_param->value); 2328 break; 2329 case ISCSI_NET_PARAM_VLAN_ENABLED: 2330 if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 2331 init_fw_cb->ipv4_ip_opts |= 2332 cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 2333 else 2334 init_fw_cb->ipv4_ip_opts &= 2335 cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 2336 break; 2337 case ISCSI_NET_PARAM_MTU: 2338 init_fw_cb->eth_mtu_size = 2339 cpu_to_le16(*(uint16_t *)iface_param->value); 2340 break; 2341 case ISCSI_NET_PARAM_PORT: 2342 init_fw_cb->ipv4_port = 2343 cpu_to_le16(*(uint16_t *)iface_param->value); 2344 break; 2345 case ISCSI_NET_PARAM_DELAYED_ACK_EN: 2346 if (iface_param->iface_num & 0x1) 2347 break; 2348 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2349 init_fw_cb->ipv4_tcp_opts |= 2350 cpu_to_le16(TCPOPT_DELAYED_ACK_DISABLE); 2351 else 2352 init_fw_cb->ipv4_tcp_opts &= 2353 cpu_to_le16(~TCPOPT_DELAYED_ACK_DISABLE & 2354 0xFFFF); 2355 break; 2356 case ISCSI_NET_PARAM_TCP_NAGLE_DISABLE: 2357 if (iface_param->iface_num & 0x1) 2358 break; 2359 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2360 init_fw_cb->ipv4_tcp_opts |= 2361 cpu_to_le16(TCPOPT_NAGLE_ALGO_DISABLE); 2362 else 2363 init_fw_cb->ipv4_tcp_opts &= 2364 cpu_to_le16(~TCPOPT_NAGLE_ALGO_DISABLE); 2365 break; 2366 case ISCSI_NET_PARAM_TCP_WSF_DISABLE: 2367 if (iface_param->iface_num & 0x1) 2368 break; 2369 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2370 init_fw_cb->ipv4_tcp_opts |= 2371 cpu_to_le16(TCPOPT_WINDOW_SCALE_DISABLE); 2372 else 2373 init_fw_cb->ipv4_tcp_opts &= 2374 cpu_to_le16(~TCPOPT_WINDOW_SCALE_DISABLE); 2375 break; 2376 case ISCSI_NET_PARAM_TCP_WSF: 2377 if (iface_param->iface_num & 0x1) 2378 break; 2379 init_fw_cb->ipv4_tcp_wsf = iface_param->value[0]; 2380 break; 2381 case ISCSI_NET_PARAM_TCP_TIMER_SCALE: 2382 if (iface_param->iface_num & 0x1) 2383 break; 2384 init_fw_cb->ipv4_tcp_opts &= cpu_to_le16(~TCPOPT_TIMER_SCALE); 2385 init_fw_cb->ipv4_tcp_opts |= 2386 cpu_to_le16((iface_param->value[0] << 1) & 2387 TCPOPT_TIMER_SCALE); 2388 break; 2389 case ISCSI_NET_PARAM_TCP_TIMESTAMP_EN: 2390 if (iface_param->iface_num & 0x1) 2391 break; 2392 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2393 init_fw_cb->ipv4_tcp_opts |= 2394 cpu_to_le16(TCPOPT_TIMESTAMP_ENABLE); 2395 else 2396 init_fw_cb->ipv4_tcp_opts &= 2397 cpu_to_le16(~TCPOPT_TIMESTAMP_ENABLE); 2398 break; 2399 case ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN: 2400 if (iface_param->iface_num & 0x1) 2401 break; 2402 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2403 init_fw_cb->ipv4_tcp_opts |= 2404 cpu_to_le16(TCPOPT_DNS_SERVER_IP_EN); 2405 else 2406 init_fw_cb->ipv4_tcp_opts &= 2407 cpu_to_le16(~TCPOPT_DNS_SERVER_IP_EN); 2408 break; 2409 case ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN: 2410 if (iface_param->iface_num & 0x1) 2411 break; 2412 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2413 init_fw_cb->ipv4_tcp_opts |= 2414 cpu_to_le16(TCPOPT_SLP_DA_INFO_EN); 2415 else 2416 init_fw_cb->ipv4_tcp_opts &= 2417 cpu_to_le16(~TCPOPT_SLP_DA_INFO_EN); 2418 break; 2419 case ISCSI_NET_PARAM_IPV4_TOS_EN: 2420 if (iface_param->iface_num & 0x1) 2421 break; 2422 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2423 init_fw_cb->ipv4_ip_opts |= 2424 cpu_to_le16(IPOPT_IPV4_TOS_EN); 2425 else 2426 init_fw_cb->ipv4_ip_opts &= 2427 cpu_to_le16(~IPOPT_IPV4_TOS_EN); 2428 break; 2429 case ISCSI_NET_PARAM_IPV4_TOS: 2430 if (iface_param->iface_num & 0x1) 2431 break; 2432 init_fw_cb->ipv4_tos = iface_param->value[0]; 2433 break; 2434 case ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN: 2435 if (iface_param->iface_num & 0x1) 2436 break; 2437 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2438 init_fw_cb->ipv4_ip_opts |= 2439 cpu_to_le16(IPOPT_GRAT_ARP_EN); 2440 else 2441 init_fw_cb->ipv4_ip_opts &= 2442 cpu_to_le16(~IPOPT_GRAT_ARP_EN); 2443 break; 2444 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN: 2445 if (iface_param->iface_num & 0x1) 2446 break; 2447 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2448 init_fw_cb->ipv4_ip_opts |= 2449 cpu_to_le16(IPOPT_ALT_CID_EN); 2450 else 2451 init_fw_cb->ipv4_ip_opts &= 2452 cpu_to_le16(~IPOPT_ALT_CID_EN); 2453 break; 2454 case ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID: 2455 if (iface_param->iface_num & 0x1) 2456 break; 2457 memcpy(init_fw_cb->ipv4_dhcp_alt_cid, iface_param->value, 2458 (sizeof(init_fw_cb->ipv4_dhcp_alt_cid) - 1)); 2459 init_fw_cb->ipv4_dhcp_alt_cid_len = 2460 strlen(init_fw_cb->ipv4_dhcp_alt_cid); 2461 break; 2462 case ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN: 2463 if (iface_param->iface_num & 0x1) 2464 break; 2465 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2466 init_fw_cb->ipv4_ip_opts |= 2467 cpu_to_le16(IPOPT_REQ_VID_EN); 2468 else 2469 init_fw_cb->ipv4_ip_opts &= 2470 cpu_to_le16(~IPOPT_REQ_VID_EN); 2471 break; 2472 case ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN: 2473 if (iface_param->iface_num & 0x1) 2474 break; 2475 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2476 init_fw_cb->ipv4_ip_opts |= 2477 cpu_to_le16(IPOPT_USE_VID_EN); 2478 else 2479 init_fw_cb->ipv4_ip_opts &= 2480 cpu_to_le16(~IPOPT_USE_VID_EN); 2481 break; 2482 case ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID: 2483 if (iface_param->iface_num & 0x1) 2484 break; 2485 memcpy(init_fw_cb->ipv4_dhcp_vid, iface_param->value, 2486 (sizeof(init_fw_cb->ipv4_dhcp_vid) - 1)); 2487 init_fw_cb->ipv4_dhcp_vid_len = 2488 strlen(init_fw_cb->ipv4_dhcp_vid); 2489 break; 2490 case ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN: 2491 if (iface_param->iface_num & 0x1) 2492 break; 2493 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2494 init_fw_cb->ipv4_ip_opts |= 2495 cpu_to_le16(IPOPT_LEARN_IQN_EN); 2496 else 2497 init_fw_cb->ipv4_ip_opts &= 2498 cpu_to_le16(~IPOPT_LEARN_IQN_EN); 2499 break; 2500 case ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE: 2501 if (iface_param->iface_num & 0x1) 2502 break; 2503 if (iface_param->value[0] == ISCSI_NET_PARAM_DISABLE) 2504 init_fw_cb->ipv4_ip_opts |= 2505 cpu_to_le16(IPOPT_FRAGMENTATION_DISABLE); 2506 else 2507 init_fw_cb->ipv4_ip_opts &= 2508 cpu_to_le16(~IPOPT_FRAGMENTATION_DISABLE); 2509 break; 2510 case ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN: 2511 if (iface_param->iface_num & 0x1) 2512 break; 2513 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2514 init_fw_cb->ipv4_ip_opts |= 2515 cpu_to_le16(IPOPT_IN_FORWARD_EN); 2516 else 2517 init_fw_cb->ipv4_ip_opts &= 2518 cpu_to_le16(~IPOPT_IN_FORWARD_EN); 2519 break; 2520 case ISCSI_NET_PARAM_REDIRECT_EN: 2521 if (iface_param->iface_num & 0x1) 2522 break; 2523 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2524 init_fw_cb->ipv4_ip_opts |= 2525 cpu_to_le16(IPOPT_ARP_REDIRECT_EN); 2526 else 2527 init_fw_cb->ipv4_ip_opts &= 2528 cpu_to_le16(~IPOPT_ARP_REDIRECT_EN); 2529 break; 2530 case ISCSI_NET_PARAM_IPV4_TTL: 2531 if (iface_param->iface_num & 0x1) 2532 break; 2533 init_fw_cb->ipv4_ttl = iface_param->value[0]; 2534 break; 2535 default: 2536 ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 2537 iface_param->param); 2538 break; 2539 } 2540 } 2541 2542 static void qla4xxx_set_iscsi_param(struct scsi_qla_host *ha, 2543 struct iscsi_iface_param_info *iface_param, 2544 struct addr_ctrl_blk *init_fw_cb) 2545 { 2546 switch (iface_param->param) { 2547 case ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO: 2548 if (iface_param->iface_num & 0x1) 2549 break; 2550 init_fw_cb->def_timeout = 2551 cpu_to_le16(*(uint16_t *)iface_param->value); 2552 break; 2553 case ISCSI_IFACE_PARAM_HDRDGST_EN: 2554 if (iface_param->iface_num & 0x1) 2555 break; 2556 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2557 init_fw_cb->iscsi_opts |= 2558 cpu_to_le16(ISCSIOPTS_HEADER_DIGEST_EN); 2559 else 2560 init_fw_cb->iscsi_opts &= 2561 cpu_to_le16(~ISCSIOPTS_HEADER_DIGEST_EN); 2562 break; 2563 case ISCSI_IFACE_PARAM_DATADGST_EN: 2564 if (iface_param->iface_num & 0x1) 2565 break; 2566 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2567 init_fw_cb->iscsi_opts |= 2568 cpu_to_le16(ISCSIOPTS_DATA_DIGEST_EN); 2569 else 2570 init_fw_cb->iscsi_opts &= 2571 cpu_to_le16(~ISCSIOPTS_DATA_DIGEST_EN); 2572 break; 2573 case ISCSI_IFACE_PARAM_IMM_DATA_EN: 2574 if (iface_param->iface_num & 0x1) 2575 break; 2576 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2577 init_fw_cb->iscsi_opts |= 2578 cpu_to_le16(ISCSIOPTS_IMMEDIATE_DATA_EN); 2579 else 2580 init_fw_cb->iscsi_opts &= 2581 cpu_to_le16(~ISCSIOPTS_IMMEDIATE_DATA_EN); 2582 break; 2583 case ISCSI_IFACE_PARAM_INITIAL_R2T_EN: 2584 if (iface_param->iface_num & 0x1) 2585 break; 2586 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2587 init_fw_cb->iscsi_opts |= 2588 cpu_to_le16(ISCSIOPTS_INITIAL_R2T_EN); 2589 else 2590 init_fw_cb->iscsi_opts &= 2591 cpu_to_le16(~ISCSIOPTS_INITIAL_R2T_EN); 2592 break; 2593 case ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN: 2594 if (iface_param->iface_num & 0x1) 2595 break; 2596 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2597 init_fw_cb->iscsi_opts |= 2598 cpu_to_le16(ISCSIOPTS_DATA_SEQ_INORDER_EN); 2599 else 2600 init_fw_cb->iscsi_opts &= 2601 cpu_to_le16(~ISCSIOPTS_DATA_SEQ_INORDER_EN); 2602 break; 2603 case ISCSI_IFACE_PARAM_PDU_INORDER_EN: 2604 if (iface_param->iface_num & 0x1) 2605 break; 2606 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2607 init_fw_cb->iscsi_opts |= 2608 cpu_to_le16(ISCSIOPTS_DATA_PDU_INORDER_EN); 2609 else 2610 init_fw_cb->iscsi_opts &= 2611 cpu_to_le16(~ISCSIOPTS_DATA_PDU_INORDER_EN); 2612 break; 2613 case ISCSI_IFACE_PARAM_ERL: 2614 if (iface_param->iface_num & 0x1) 2615 break; 2616 init_fw_cb->iscsi_opts &= cpu_to_le16(~ISCSIOPTS_ERL); 2617 init_fw_cb->iscsi_opts |= cpu_to_le16(iface_param->value[0] & 2618 ISCSIOPTS_ERL); 2619 break; 2620 case ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH: 2621 if (iface_param->iface_num & 0x1) 2622 break; 2623 init_fw_cb->iscsi_max_pdu_size = 2624 cpu_to_le32(*(uint32_t *)iface_param->value) / 2625 BYTE_UNITS; 2626 break; 2627 case ISCSI_IFACE_PARAM_FIRST_BURST: 2628 if (iface_param->iface_num & 0x1) 2629 break; 2630 init_fw_cb->iscsi_fburst_len = 2631 cpu_to_le32(*(uint32_t *)iface_param->value) / 2632 BYTE_UNITS; 2633 break; 2634 case ISCSI_IFACE_PARAM_MAX_R2T: 2635 if (iface_param->iface_num & 0x1) 2636 break; 2637 init_fw_cb->iscsi_max_outstnd_r2t = 2638 cpu_to_le16(*(uint16_t *)iface_param->value); 2639 break; 2640 case ISCSI_IFACE_PARAM_MAX_BURST: 2641 if (iface_param->iface_num & 0x1) 2642 break; 2643 init_fw_cb->iscsi_max_burst_len = 2644 cpu_to_le32(*(uint32_t *)iface_param->value) / 2645 BYTE_UNITS; 2646 break; 2647 case ISCSI_IFACE_PARAM_CHAP_AUTH_EN: 2648 if (iface_param->iface_num & 0x1) 2649 break; 2650 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2651 init_fw_cb->iscsi_opts |= 2652 cpu_to_le16(ISCSIOPTS_CHAP_AUTH_EN); 2653 else 2654 init_fw_cb->iscsi_opts &= 2655 cpu_to_le16(~ISCSIOPTS_CHAP_AUTH_EN); 2656 break; 2657 case ISCSI_IFACE_PARAM_BIDI_CHAP_EN: 2658 if (iface_param->iface_num & 0x1) 2659 break; 2660 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2661 init_fw_cb->iscsi_opts |= 2662 cpu_to_le16(ISCSIOPTS_BIDI_CHAP_EN); 2663 else 2664 init_fw_cb->iscsi_opts &= 2665 cpu_to_le16(~ISCSIOPTS_BIDI_CHAP_EN); 2666 break; 2667 case ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL: 2668 if (iface_param->iface_num & 0x1) 2669 break; 2670 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2671 init_fw_cb->iscsi_opts |= 2672 cpu_to_le16(ISCSIOPTS_DISCOVERY_AUTH_EN); 2673 else 2674 init_fw_cb->iscsi_opts &= 2675 cpu_to_le16(~ISCSIOPTS_DISCOVERY_AUTH_EN); 2676 break; 2677 case ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN: 2678 if (iface_param->iface_num & 0x1) 2679 break; 2680 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2681 init_fw_cb->iscsi_opts |= 2682 cpu_to_le16(ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2683 else 2684 init_fw_cb->iscsi_opts &= 2685 cpu_to_le16(~ISCSIOPTS_DISCOVERY_LOGOUT_EN); 2686 break; 2687 case ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN: 2688 if (iface_param->iface_num & 0x1) 2689 break; 2690 if (iface_param->value[0] == ISCSI_NET_PARAM_ENABLE) 2691 init_fw_cb->iscsi_opts |= 2692 cpu_to_le16(ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2693 else 2694 init_fw_cb->iscsi_opts &= 2695 cpu_to_le16(~ISCSIOPTS_STRICT_LOGIN_COMP_EN); 2696 break; 2697 default: 2698 ql4_printk(KERN_ERR, ha, "Unknown iscsi param = %d\n", 2699 iface_param->param); 2700 break; 2701 } 2702 } 2703 2704 static void 2705 qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 2706 { 2707 struct addr_ctrl_blk_def *acb; 2708 acb = (struct addr_ctrl_blk_def *)init_fw_cb; 2709 memset(acb->reserved1, 0, sizeof(acb->reserved1)); 2710 memset(acb->reserved2, 0, sizeof(acb->reserved2)); 2711 memset(acb->reserved3, 0, sizeof(acb->reserved3)); 2712 memset(acb->reserved4, 0, sizeof(acb->reserved4)); 2713 memset(acb->reserved5, 0, sizeof(acb->reserved5)); 2714 memset(acb->reserved6, 0, sizeof(acb->reserved6)); 2715 memset(acb->reserved7, 0, sizeof(acb->reserved7)); 2716 memset(acb->reserved8, 0, sizeof(acb->reserved8)); 2717 memset(acb->reserved9, 0, sizeof(acb->reserved9)); 2718 memset(acb->reserved10, 0, sizeof(acb->reserved10)); 2719 memset(acb->reserved11, 0, sizeof(acb->reserved11)); 2720 memset(acb->reserved12, 0, sizeof(acb->reserved12)); 2721 memset(acb->reserved13, 0, sizeof(acb->reserved13)); 2722 memset(acb->reserved14, 0, sizeof(acb->reserved14)); 2723 memset(acb->reserved15, 0, sizeof(acb->reserved15)); 2724 } 2725 2726 static int 2727 qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 2728 { 2729 struct scsi_qla_host *ha = to_qla_host(shost); 2730 int rval = 0; 2731 struct iscsi_iface_param_info *iface_param = NULL; 2732 struct addr_ctrl_blk *init_fw_cb = NULL; 2733 dma_addr_t init_fw_cb_dma; 2734 uint32_t mbox_cmd[MBOX_REG_COUNT]; 2735 uint32_t mbox_sts[MBOX_REG_COUNT]; 2736 uint32_t rem = len; 2737 struct nlattr *attr; 2738 2739 init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 2740 sizeof(struct addr_ctrl_blk), 2741 &init_fw_cb_dma, GFP_KERNEL); 2742 if (!init_fw_cb) { 2743 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 2744 __func__); 2745 return -ENOMEM; 2746 } 2747 2748 memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 2749 memset(&mbox_sts, 0, sizeof(mbox_sts)); 2750 2751 if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 2752 ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 2753 rval = -EIO; 2754 goto exit_init_fw_cb; 2755 } 2756 2757 nla_for_each_attr(attr, data, len, rem) { 2758 if (nla_len(attr) < sizeof(*iface_param)) { 2759 rval = -EINVAL; 2760 goto exit_init_fw_cb; 2761 } 2762 2763 iface_param = nla_data(attr); 2764 2765 if (iface_param->param_type == ISCSI_NET_PARAM) { 2766 switch (iface_param->iface_type) { 2767 case ISCSI_IFACE_TYPE_IPV4: 2768 switch (iface_param->iface_num) { 2769 case 0: 2770 qla4xxx_set_ipv4(ha, iface_param, 2771 init_fw_cb); 2772 break; 2773 default: 2774 /* Cannot have more than one IPv4 interface */ 2775 ql4_printk(KERN_ERR, ha, 2776 "Invalid IPv4 iface number = %d\n", 2777 iface_param->iface_num); 2778 break; 2779 } 2780 break; 2781 case ISCSI_IFACE_TYPE_IPV6: 2782 switch (iface_param->iface_num) { 2783 case 0: 2784 case 1: 2785 qla4xxx_set_ipv6(ha, iface_param, 2786 init_fw_cb); 2787 break; 2788 default: 2789 /* Cannot have more than two IPv6 interface */ 2790 ql4_printk(KERN_ERR, ha, 2791 "Invalid IPv6 iface number = %d\n", 2792 iface_param->iface_num); 2793 break; 2794 } 2795 break; 2796 default: 2797 ql4_printk(KERN_ERR, ha, 2798 "Invalid iface type\n"); 2799 break; 2800 } 2801 } else if (iface_param->param_type == ISCSI_IFACE_PARAM) { 2802 qla4xxx_set_iscsi_param(ha, iface_param, 2803 init_fw_cb); 2804 } else { 2805 continue; 2806 } 2807 } 2808 2809 init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 2810 2811 rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 2812 sizeof(struct addr_ctrl_blk), 2813 FLASH_OPT_RMW_COMMIT); 2814 if (rval != QLA_SUCCESS) { 2815 ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 2816 __func__); 2817 rval = -EIO; 2818 goto exit_init_fw_cb; 2819 } 2820 2821 rval = qla4xxx_disable_acb(ha); 2822 if (rval != QLA_SUCCESS) { 2823 ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 2824 __func__); 2825 rval = -EIO; 2826 goto exit_init_fw_cb; 2827 } 2828 2829 wait_for_completion_timeout(&ha->disable_acb_comp, 2830 DISABLE_ACB_TOV * HZ); 2831 2832 qla4xxx_initcb_to_acb(init_fw_cb); 2833 2834 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 2835 if (rval != QLA_SUCCESS) { 2836 ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 2837 __func__); 2838 rval = -EIO; 2839 goto exit_init_fw_cb; 2840 } 2841 2842 memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 2843 qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 2844 init_fw_cb_dma); 2845 2846 exit_init_fw_cb: 2847 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 2848 init_fw_cb, init_fw_cb_dma); 2849 2850 return rval; 2851 } 2852 2853 static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess, 2854 enum iscsi_param param, char *buf) 2855 { 2856 struct iscsi_session *sess = cls_sess->dd_data; 2857 struct ddb_entry *ddb_entry = sess->dd_data; 2858 struct scsi_qla_host *ha = ddb_entry->ha; 2859 struct iscsi_cls_conn *cls_conn = ddb_entry->conn; 2860 struct ql4_chap_table chap_tbl; 2861 int rval, len; 2862 uint16_t idx; 2863 2864 memset(&chap_tbl, 0, sizeof(chap_tbl)); 2865 switch (param) { 2866 case ISCSI_PARAM_CHAP_IN_IDX: 2867 rval = qla4xxx_get_chap_index(ha, sess->username_in, 2868 sess->password_in, BIDI_CHAP, 2869 &idx); 2870 if (rval) 2871 len = sprintf(buf, "\n"); 2872 else 2873 len = sprintf(buf, "%hu\n", idx); 2874 break; 2875 case ISCSI_PARAM_CHAP_OUT_IDX: 2876 if (ddb_entry->ddb_type == FLASH_DDB) { 2877 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 2878 idx = ddb_entry->chap_tbl_idx; 2879 rval = QLA_SUCCESS; 2880 } else { 2881 rval = QLA_ERROR; 2882 } 2883 } else { 2884 rval = qla4xxx_get_chap_index(ha, sess->username, 2885 sess->password, 2886 LOCAL_CHAP, &idx); 2887 } 2888 if (rval) 2889 len = sprintf(buf, "\n"); 2890 else 2891 len = sprintf(buf, "%hu\n", idx); 2892 break; 2893 case ISCSI_PARAM_USERNAME: 2894 case ISCSI_PARAM_PASSWORD: 2895 /* First, populate session username and password for FLASH DDB, 2896 * if not already done. This happens when session login fails 2897 * for a FLASH DDB. 2898 */ 2899 if (ddb_entry->ddb_type == FLASH_DDB && 2900 ddb_entry->chap_tbl_idx != INVALID_ENTRY && 2901 !sess->username && !sess->password) { 2902 idx = ddb_entry->chap_tbl_idx; 2903 rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 2904 chap_tbl.secret, 2905 idx); 2906 if (!rval) { 2907 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 2908 (char *)chap_tbl.name, 2909 strlen((char *)chap_tbl.name)); 2910 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 2911 (char *)chap_tbl.secret, 2912 chap_tbl.secret_len); 2913 } 2914 } 2915 fallthrough; 2916 default: 2917 return iscsi_session_get_param(cls_sess, param, buf); 2918 } 2919 2920 return len; 2921 } 2922 2923 static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 2924 enum iscsi_param param, char *buf) 2925 { 2926 struct iscsi_conn *conn; 2927 struct qla_conn *qla_conn; 2928 struct sockaddr *dst_addr; 2929 2930 conn = cls_conn->dd_data; 2931 qla_conn = conn->dd_data; 2932 dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr; 2933 2934 switch (param) { 2935 case ISCSI_PARAM_CONN_PORT: 2936 case ISCSI_PARAM_CONN_ADDRESS: 2937 return iscsi_conn_get_addr_param((struct sockaddr_storage *) 2938 dst_addr, param, buf); 2939 default: 2940 return iscsi_conn_get_param(cls_conn, param, buf); 2941 } 2942 } 2943 2944 int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 2945 { 2946 uint32_t mbx_sts = 0; 2947 uint16_t tmp_ddb_index; 2948 int ret; 2949 2950 get_ddb_index: 2951 tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 2952 2953 if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 2954 DEBUG2(ql4_printk(KERN_INFO, ha, 2955 "Free DDB index not available\n")); 2956 ret = QLA_ERROR; 2957 goto exit_get_ddb_index; 2958 } 2959 2960 if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 2961 goto get_ddb_index; 2962 2963 DEBUG2(ql4_printk(KERN_INFO, ha, 2964 "Found a free DDB index at %d\n", tmp_ddb_index)); 2965 ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 2966 if (ret == QLA_ERROR) { 2967 if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 2968 ql4_printk(KERN_INFO, ha, 2969 "DDB index = %d not available trying next\n", 2970 tmp_ddb_index); 2971 goto get_ddb_index; 2972 } 2973 DEBUG2(ql4_printk(KERN_INFO, ha, 2974 "Free FW DDB not available\n")); 2975 } 2976 2977 *ddb_index = tmp_ddb_index; 2978 2979 exit_get_ddb_index: 2980 return ret; 2981 } 2982 2983 static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 2984 struct ddb_entry *ddb_entry, 2985 char *existing_ipaddr, 2986 char *user_ipaddr) 2987 { 2988 uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 2989 char formatted_ipaddr[DDB_IPADDR_LEN]; 2990 int status = QLA_SUCCESS, ret = 0; 2991 2992 if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 2993 ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 2994 '\0', NULL); 2995 if (ret == 0) { 2996 status = QLA_ERROR; 2997 goto out_match; 2998 } 2999 ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 3000 } else { 3001 ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 3002 '\0', NULL); 3003 if (ret == 0) { 3004 status = QLA_ERROR; 3005 goto out_match; 3006 } 3007 ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 3008 } 3009 3010 if (strcmp(existing_ipaddr, formatted_ipaddr)) 3011 status = QLA_ERROR; 3012 3013 out_match: 3014 return status; 3015 } 3016 3017 static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 3018 struct iscsi_cls_conn *cls_conn) 3019 { 3020 int idx = 0, max_ddbs, rval; 3021 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3022 struct iscsi_session *sess, *existing_sess; 3023 struct iscsi_conn *conn, *existing_conn; 3024 struct ddb_entry *ddb_entry; 3025 3026 sess = cls_sess->dd_data; 3027 conn = cls_conn->dd_data; 3028 3029 if (sess->targetname == NULL || 3030 conn->persistent_address == NULL || 3031 conn->persistent_port == 0) 3032 return QLA_ERROR; 3033 3034 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 3035 MAX_DEV_DB_ENTRIES; 3036 3037 for (idx = 0; idx < max_ddbs; idx++) { 3038 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 3039 if (ddb_entry == NULL) 3040 continue; 3041 3042 if (ddb_entry->ddb_type != FLASH_DDB) 3043 continue; 3044 3045 existing_sess = ddb_entry->sess->dd_data; 3046 existing_conn = ddb_entry->conn->dd_data; 3047 3048 if (existing_sess->targetname == NULL || 3049 existing_conn->persistent_address == NULL || 3050 existing_conn->persistent_port == 0) 3051 continue; 3052 3053 DEBUG2(ql4_printk(KERN_INFO, ha, 3054 "IQN = %s User IQN = %s\n", 3055 existing_sess->targetname, 3056 sess->targetname)); 3057 3058 DEBUG2(ql4_printk(KERN_INFO, ha, 3059 "IP = %s User IP = %s\n", 3060 existing_conn->persistent_address, 3061 conn->persistent_address)); 3062 3063 DEBUG2(ql4_printk(KERN_INFO, ha, 3064 "Port = %d User Port = %d\n", 3065 existing_conn->persistent_port, 3066 conn->persistent_port)); 3067 3068 if (strcmp(existing_sess->targetname, sess->targetname)) 3069 continue; 3070 rval = qla4xxx_match_ipaddress(ha, ddb_entry, 3071 existing_conn->persistent_address, 3072 conn->persistent_address); 3073 if (rval == QLA_ERROR) 3074 continue; 3075 if (existing_conn->persistent_port != conn->persistent_port) 3076 continue; 3077 break; 3078 } 3079 3080 if (idx == max_ddbs) 3081 return QLA_ERROR; 3082 3083 DEBUG2(ql4_printk(KERN_INFO, ha, 3084 "Match found in fwdb sessions\n")); 3085 return QLA_SUCCESS; 3086 } 3087 3088 static struct iscsi_cls_session * 3089 qla4xxx_session_create(struct iscsi_endpoint *ep, 3090 uint16_t cmds_max, uint16_t qdepth, 3091 uint32_t initial_cmdsn) 3092 { 3093 struct iscsi_cls_session *cls_sess; 3094 struct scsi_qla_host *ha; 3095 struct qla_endpoint *qla_ep; 3096 struct ddb_entry *ddb_entry; 3097 uint16_t ddb_index; 3098 struct iscsi_session *sess; 3099 int ret; 3100 3101 if (!ep) { 3102 printk(KERN_ERR "qla4xxx: missing ep.\n"); 3103 return NULL; 3104 } 3105 3106 qla_ep = ep->dd_data; 3107 ha = to_qla_host(qla_ep->host); 3108 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3109 ha->host_no)); 3110 3111 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 3112 if (ret == QLA_ERROR) 3113 return NULL; 3114 3115 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 3116 cmds_max, sizeof(struct ddb_entry), 3117 sizeof(struct ql4_task_data), 3118 initial_cmdsn, ddb_index); 3119 if (!cls_sess) 3120 return NULL; 3121 3122 sess = cls_sess->dd_data; 3123 ddb_entry = sess->dd_data; 3124 ddb_entry->fw_ddb_index = ddb_index; 3125 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 3126 ddb_entry->ha = ha; 3127 ddb_entry->sess = cls_sess; 3128 ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 3129 ddb_entry->ddb_change = qla4xxx_ddb_change; 3130 clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags); 3131 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 3132 ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 3133 ha->tot_ddbs++; 3134 3135 return cls_sess; 3136 } 3137 3138 static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 3139 { 3140 struct iscsi_session *sess; 3141 struct ddb_entry *ddb_entry; 3142 struct scsi_qla_host *ha; 3143 unsigned long flags, wtime; 3144 struct dev_db_entry *fw_ddb_entry = NULL; 3145 dma_addr_t fw_ddb_entry_dma; 3146 uint32_t ddb_state; 3147 int ret; 3148 3149 sess = cls_sess->dd_data; 3150 ddb_entry = sess->dd_data; 3151 ha = ddb_entry->ha; 3152 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: host: %ld\n", __func__, 3153 ha->host_no)); 3154 3155 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3156 &fw_ddb_entry_dma, GFP_KERNEL); 3157 if (!fw_ddb_entry) { 3158 ql4_printk(KERN_ERR, ha, 3159 "%s: Unable to allocate dma buffer\n", __func__); 3160 goto destroy_session; 3161 } 3162 3163 wtime = jiffies + (HZ * LOGOUT_TOV); 3164 do { 3165 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 3166 fw_ddb_entry, fw_ddb_entry_dma, 3167 NULL, NULL, &ddb_state, NULL, 3168 NULL, NULL); 3169 if (ret == QLA_ERROR) 3170 goto destroy_session; 3171 3172 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 3173 (ddb_state == DDB_DS_SESSION_FAILED)) 3174 goto destroy_session; 3175 3176 schedule_timeout_uninterruptible(HZ); 3177 } while ((time_after(wtime, jiffies))); 3178 3179 destroy_session: 3180 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 3181 if (test_and_clear_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags)) 3182 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 3183 spin_lock_irqsave(&ha->hardware_lock, flags); 3184 qla4xxx_free_ddb(ha, ddb_entry); 3185 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3186 3187 iscsi_session_teardown(cls_sess); 3188 3189 if (fw_ddb_entry) 3190 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3191 fw_ddb_entry, fw_ddb_entry_dma); 3192 } 3193 3194 static struct iscsi_cls_conn * 3195 qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 3196 { 3197 struct iscsi_cls_conn *cls_conn; 3198 struct iscsi_session *sess; 3199 struct ddb_entry *ddb_entry; 3200 struct scsi_qla_host *ha; 3201 3202 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 3203 conn_idx); 3204 if (!cls_conn) { 3205 pr_info("%s: Can not create connection for conn_idx = %u\n", 3206 __func__, conn_idx); 3207 return NULL; 3208 } 3209 3210 sess = cls_sess->dd_data; 3211 ddb_entry = sess->dd_data; 3212 ddb_entry->conn = cls_conn; 3213 3214 ha = ddb_entry->ha; 3215 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: conn_idx = %u\n", __func__, 3216 conn_idx)); 3217 return cls_conn; 3218 } 3219 3220 static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 3221 struct iscsi_cls_conn *cls_conn, 3222 uint64_t transport_fd, int is_leading) 3223 { 3224 struct iscsi_conn *conn; 3225 struct qla_conn *qla_conn; 3226 struct iscsi_endpoint *ep; 3227 struct ddb_entry *ddb_entry; 3228 struct scsi_qla_host *ha; 3229 struct iscsi_session *sess; 3230 3231 sess = cls_session->dd_data; 3232 ddb_entry = sess->dd_data; 3233 ha = ddb_entry->ha; 3234 3235 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3236 cls_session->sid, cls_conn->cid)); 3237 3238 if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 3239 return -EINVAL; 3240 ep = iscsi_lookup_endpoint(transport_fd); 3241 if (!ep) 3242 return -EINVAL; 3243 conn = cls_conn->dd_data; 3244 qla_conn = conn->dd_data; 3245 qla_conn->qla_ep = ep->dd_data; 3246 iscsi_put_endpoint(ep); 3247 return 0; 3248 } 3249 3250 static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 3251 { 3252 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3253 struct iscsi_session *sess; 3254 struct ddb_entry *ddb_entry; 3255 struct scsi_qla_host *ha; 3256 struct dev_db_entry *fw_ddb_entry = NULL; 3257 dma_addr_t fw_ddb_entry_dma; 3258 uint32_t mbx_sts = 0; 3259 int ret = 0; 3260 int status = QLA_SUCCESS; 3261 3262 sess = cls_sess->dd_data; 3263 ddb_entry = sess->dd_data; 3264 ha = ddb_entry->ha; 3265 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, 3266 cls_sess->sid, cls_conn->cid)); 3267 3268 /* Check if we have matching FW DDB, if yes then do not 3269 * login to this target. This could cause target to logout previous 3270 * connection 3271 */ 3272 ret = qla4xxx_match_fwdb_session(ha, cls_conn); 3273 if (ret == QLA_SUCCESS) { 3274 ql4_printk(KERN_INFO, ha, 3275 "Session already exist in FW.\n"); 3276 ret = -EEXIST; 3277 goto exit_conn_start; 3278 } 3279 3280 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3281 &fw_ddb_entry_dma, GFP_KERNEL); 3282 if (!fw_ddb_entry) { 3283 ql4_printk(KERN_ERR, ha, 3284 "%s: Unable to allocate dma buffer\n", __func__); 3285 ret = -ENOMEM; 3286 goto exit_conn_start; 3287 } 3288 3289 ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 3290 if (ret) { 3291 /* If iscsid is stopped and started then no need to do 3292 * set param again since ddb state will be already 3293 * active and FW does not allow set ddb to an 3294 * active session. 3295 */ 3296 if (mbx_sts) 3297 if (ddb_entry->fw_ddb_device_state == 3298 DDB_DS_SESSION_ACTIVE) { 3299 ddb_entry->unblock_sess(ddb_entry->sess); 3300 goto exit_set_param; 3301 } 3302 3303 ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 3304 __func__, ddb_entry->fw_ddb_index); 3305 goto exit_conn_start; 3306 } 3307 3308 status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 3309 if (status == QLA_ERROR) { 3310 ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 3311 sess->targetname); 3312 ret = -EINVAL; 3313 goto exit_conn_start; 3314 } 3315 3316 if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 3317 ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 3318 3319 DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 3320 ddb_entry->fw_ddb_device_state)); 3321 3322 exit_set_param: 3323 ret = 0; 3324 3325 exit_conn_start: 3326 if (fw_ddb_entry) 3327 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3328 fw_ddb_entry, fw_ddb_entry_dma); 3329 return ret; 3330 } 3331 3332 static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 3333 { 3334 struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 3335 struct iscsi_session *sess; 3336 struct scsi_qla_host *ha; 3337 struct ddb_entry *ddb_entry; 3338 int options; 3339 3340 sess = cls_sess->dd_data; 3341 ddb_entry = sess->dd_data; 3342 ha = ddb_entry->ha; 3343 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: cid = %d\n", __func__, 3344 cls_conn->cid)); 3345 3346 options = LOGOUT_OPTION_CLOSE_SESSION; 3347 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 3348 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 3349 } 3350 3351 static void qla4xxx_task_work(struct work_struct *wdata) 3352 { 3353 struct ql4_task_data *task_data; 3354 struct scsi_qla_host *ha; 3355 struct passthru_status *sts; 3356 struct iscsi_task *task; 3357 struct iscsi_hdr *hdr; 3358 uint8_t *data; 3359 uint32_t data_len; 3360 struct iscsi_conn *conn; 3361 int hdr_len; 3362 itt_t itt; 3363 3364 task_data = container_of(wdata, struct ql4_task_data, task_work); 3365 ha = task_data->ha; 3366 task = task_data->task; 3367 sts = &task_data->sts; 3368 hdr_len = sizeof(struct iscsi_hdr); 3369 3370 DEBUG3(printk(KERN_INFO "Status returned\n")); 3371 DEBUG3(qla4xxx_dump_buffer(sts, 64)); 3372 DEBUG3(printk(KERN_INFO "Response buffer")); 3373 DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 3374 3375 conn = task->conn; 3376 3377 switch (sts->completionStatus) { 3378 case PASSTHRU_STATUS_COMPLETE: 3379 hdr = (struct iscsi_hdr *)task_data->resp_buffer; 3380 /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 3381 itt = sts->handle; 3382 hdr->itt = itt; 3383 data = task_data->resp_buffer + hdr_len; 3384 data_len = task_data->resp_len - hdr_len; 3385 iscsi_complete_pdu(conn, hdr, data, data_len); 3386 break; 3387 default: 3388 ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 3389 sts->completionStatus); 3390 break; 3391 } 3392 return; 3393 } 3394 3395 static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 3396 { 3397 struct ql4_task_data *task_data; 3398 struct iscsi_session *sess; 3399 struct ddb_entry *ddb_entry; 3400 struct scsi_qla_host *ha; 3401 int hdr_len; 3402 3403 sess = task->conn->session; 3404 ddb_entry = sess->dd_data; 3405 ha = ddb_entry->ha; 3406 task_data = task->dd_data; 3407 memset(task_data, 0, sizeof(struct ql4_task_data)); 3408 3409 if (task->sc) { 3410 ql4_printk(KERN_INFO, ha, 3411 "%s: SCSI Commands not implemented\n", __func__); 3412 return -EINVAL; 3413 } 3414 3415 hdr_len = sizeof(struct iscsi_hdr); 3416 task_data->ha = ha; 3417 task_data->task = task; 3418 3419 if (task->data_count) { 3420 task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 3421 task->data_count, 3422 DMA_TO_DEVICE); 3423 if (dma_mapping_error(&ha->pdev->dev, task_data->data_dma)) 3424 return -ENOMEM; 3425 } 3426 3427 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3428 __func__, task->conn->max_recv_dlength, hdr_len)); 3429 3430 task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 3431 task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 3432 task_data->resp_len, 3433 &task_data->resp_dma, 3434 GFP_ATOMIC); 3435 if (!task_data->resp_buffer) 3436 goto exit_alloc_pdu; 3437 3438 task_data->req_len = task->data_count + hdr_len; 3439 task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 3440 task_data->req_len, 3441 &task_data->req_dma, 3442 GFP_ATOMIC); 3443 if (!task_data->req_buffer) 3444 goto exit_alloc_pdu; 3445 3446 task->hdr = task_data->req_buffer; 3447 3448 INIT_WORK(&task_data->task_work, qla4xxx_task_work); 3449 3450 return 0; 3451 3452 exit_alloc_pdu: 3453 if (task_data->resp_buffer) 3454 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3455 task_data->resp_buffer, task_data->resp_dma); 3456 3457 if (task_data->req_buffer) 3458 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3459 task_data->req_buffer, task_data->req_dma); 3460 return -ENOMEM; 3461 } 3462 3463 static void qla4xxx_task_cleanup(struct iscsi_task *task) 3464 { 3465 struct ql4_task_data *task_data; 3466 struct iscsi_session *sess; 3467 struct ddb_entry *ddb_entry; 3468 struct scsi_qla_host *ha; 3469 int hdr_len; 3470 3471 hdr_len = sizeof(struct iscsi_hdr); 3472 sess = task->conn->session; 3473 ddb_entry = sess->dd_data; 3474 ha = ddb_entry->ha; 3475 task_data = task->dd_data; 3476 3477 if (task->data_count) { 3478 dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 3479 task->data_count, DMA_TO_DEVICE); 3480 } 3481 3482 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 3483 __func__, task->conn->max_recv_dlength, hdr_len)); 3484 3485 dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 3486 task_data->resp_buffer, task_data->resp_dma); 3487 dma_free_coherent(&ha->pdev->dev, task_data->req_len, 3488 task_data->req_buffer, task_data->req_dma); 3489 return; 3490 } 3491 3492 static int qla4xxx_task_xmit(struct iscsi_task *task) 3493 { 3494 struct scsi_cmnd *sc = task->sc; 3495 struct iscsi_session *sess = task->conn->session; 3496 struct ddb_entry *ddb_entry = sess->dd_data; 3497 struct scsi_qla_host *ha = ddb_entry->ha; 3498 3499 if (!sc) 3500 return qla4xxx_send_passthru0(task); 3501 3502 ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 3503 __func__); 3504 return -ENOSYS; 3505 } 3506 3507 static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, 3508 struct iscsi_bus_flash_conn *conn, 3509 struct dev_db_entry *fw_ddb_entry) 3510 { 3511 unsigned long options = 0; 3512 int rc = 0; 3513 3514 options = le16_to_cpu(fw_ddb_entry->options); 3515 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3516 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3517 rc = iscsi_switch_str_param(&sess->portal_type, 3518 PORTAL_TYPE_IPV6); 3519 if (rc) 3520 goto exit_copy; 3521 } else { 3522 rc = iscsi_switch_str_param(&sess->portal_type, 3523 PORTAL_TYPE_IPV4); 3524 if (rc) 3525 goto exit_copy; 3526 } 3527 3528 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3529 &options); 3530 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3531 sess->entry_state = test_bit(OPT_ENTRY_STATE, &options); 3532 3533 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3534 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3535 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3536 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3537 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3538 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3539 &options); 3540 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3541 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3542 conn->snack_req_en = test_bit(ISCSIOPT_SNACK_REQ_EN, &options); 3543 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3544 &options); 3545 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3546 sess->discovery_auth_optional = 3547 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3548 if (test_bit(ISCSIOPT_ERL1, &options)) 3549 sess->erl |= BIT_1; 3550 if (test_bit(ISCSIOPT_ERL0, &options)) 3551 sess->erl |= BIT_0; 3552 3553 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3554 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3555 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3556 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3557 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3558 conn->tcp_timer_scale |= BIT_3; 3559 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3560 conn->tcp_timer_scale |= BIT_2; 3561 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3562 conn->tcp_timer_scale |= BIT_1; 3563 3564 conn->tcp_timer_scale >>= 1; 3565 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3566 3567 options = le16_to_cpu(fw_ddb_entry->ip_options); 3568 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3569 3570 conn->max_recv_dlength = BYTE_UNITS * 3571 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3572 conn->max_xmit_dlength = BYTE_UNITS * 3573 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3574 sess->first_burst = BYTE_UNITS * 3575 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3576 sess->max_burst = BYTE_UNITS * 3577 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3578 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3579 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3580 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3581 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3582 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3583 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3584 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3585 conn->ipv6_flow_label = le16_to_cpu(fw_ddb_entry->ipv6_flow_lbl); 3586 conn->keepalive_timeout = le16_to_cpu(fw_ddb_entry->ka_timeout); 3587 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3588 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3589 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3590 sess->discovery_parent_idx = le16_to_cpu(fw_ddb_entry->ddb_link); 3591 sess->discovery_parent_type = le16_to_cpu(fw_ddb_entry->ddb_link); 3592 sess->chap_out_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3593 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3594 3595 sess->default_taskmgmt_timeout = 3596 le16_to_cpu(fw_ddb_entry->def_timeout); 3597 conn->port = le16_to_cpu(fw_ddb_entry->port); 3598 3599 options = le16_to_cpu(fw_ddb_entry->options); 3600 conn->ipaddress = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3601 if (!conn->ipaddress) { 3602 rc = -ENOMEM; 3603 goto exit_copy; 3604 } 3605 3606 conn->redirect_ipaddr = kzalloc(IPv6_ADDR_LEN, GFP_KERNEL); 3607 if (!conn->redirect_ipaddr) { 3608 rc = -ENOMEM; 3609 goto exit_copy; 3610 } 3611 3612 memcpy(conn->ipaddress, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 3613 memcpy(conn->redirect_ipaddr, fw_ddb_entry->tgt_addr, IPv6_ADDR_LEN); 3614 3615 if (test_bit(OPT_IPV6_DEVICE, &options)) { 3616 conn->ipv6_traffic_class = fw_ddb_entry->ipv4_tos; 3617 3618 conn->link_local_ipv6_addr = kmemdup( 3619 fw_ddb_entry->link_local_ipv6_addr, 3620 IPv6_ADDR_LEN, GFP_KERNEL); 3621 if (!conn->link_local_ipv6_addr) { 3622 rc = -ENOMEM; 3623 goto exit_copy; 3624 } 3625 } else { 3626 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3627 } 3628 3629 if (fw_ddb_entry->iscsi_name[0]) { 3630 rc = iscsi_switch_str_param(&sess->targetname, 3631 (char *)fw_ddb_entry->iscsi_name); 3632 if (rc) 3633 goto exit_copy; 3634 } 3635 3636 if (fw_ddb_entry->iscsi_alias[0]) { 3637 rc = iscsi_switch_str_param(&sess->targetalias, 3638 (char *)fw_ddb_entry->iscsi_alias); 3639 if (rc) 3640 goto exit_copy; 3641 } 3642 3643 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3644 3645 exit_copy: 3646 return rc; 3647 } 3648 3649 static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, 3650 struct iscsi_bus_flash_conn *conn, 3651 struct dev_db_entry *fw_ddb_entry) 3652 { 3653 uint16_t options; 3654 3655 options = le16_to_cpu(fw_ddb_entry->options); 3656 SET_BITVAL(conn->is_fw_assigned_ipv6, options, BIT_11); 3657 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3658 options |= BIT_8; 3659 else 3660 options &= ~BIT_8; 3661 3662 SET_BITVAL(sess->auto_snd_tgt_disable, options, BIT_6); 3663 SET_BITVAL(sess->discovery_sess, options, BIT_4); 3664 SET_BITVAL(sess->entry_state, options, BIT_3); 3665 fw_ddb_entry->options = cpu_to_le16(options); 3666 3667 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3668 SET_BITVAL(conn->hdrdgst_en, options, BIT_13); 3669 SET_BITVAL(conn->datadgst_en, options, BIT_12); 3670 SET_BITVAL(sess->imm_data_en, options, BIT_11); 3671 SET_BITVAL(sess->initial_r2t_en, options, BIT_10); 3672 SET_BITVAL(sess->dataseq_inorder_en, options, BIT_9); 3673 SET_BITVAL(sess->pdu_inorder_en, options, BIT_8); 3674 SET_BITVAL(sess->chap_auth_en, options, BIT_7); 3675 SET_BITVAL(conn->snack_req_en, options, BIT_6); 3676 SET_BITVAL(sess->discovery_logout_en, options, BIT_5); 3677 SET_BITVAL(sess->bidi_chap_en, options, BIT_4); 3678 SET_BITVAL(sess->discovery_auth_optional, options, BIT_3); 3679 SET_BITVAL(sess->erl & BIT_1, options, BIT_1); 3680 SET_BITVAL(sess->erl & BIT_0, options, BIT_0); 3681 fw_ddb_entry->iscsi_options = cpu_to_le16(options); 3682 3683 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3684 SET_BITVAL(conn->tcp_timestamp_stat, options, BIT_6); 3685 SET_BITVAL(conn->tcp_nagle_disable, options, BIT_5); 3686 SET_BITVAL(conn->tcp_wsf_disable, options, BIT_4); 3687 SET_BITVAL(conn->tcp_timer_scale & BIT_2, options, BIT_3); 3688 SET_BITVAL(conn->tcp_timer_scale & BIT_1, options, BIT_2); 3689 SET_BITVAL(conn->tcp_timer_scale & BIT_0, options, BIT_1); 3690 SET_BITVAL(conn->tcp_timestamp_en, options, BIT_0); 3691 fw_ddb_entry->tcp_options = cpu_to_le16(options); 3692 3693 options = le16_to_cpu(fw_ddb_entry->ip_options); 3694 SET_BITVAL(conn->fragment_disable, options, BIT_4); 3695 fw_ddb_entry->ip_options = cpu_to_le16(options); 3696 3697 fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t); 3698 fw_ddb_entry->iscsi_max_rcv_data_seg_len = 3699 cpu_to_le16(conn->max_recv_dlength / BYTE_UNITS); 3700 fw_ddb_entry->iscsi_max_snd_data_seg_len = 3701 cpu_to_le16(conn->max_xmit_dlength / BYTE_UNITS); 3702 fw_ddb_entry->iscsi_first_burst_len = 3703 cpu_to_le16(sess->first_burst / BYTE_UNITS); 3704 fw_ddb_entry->iscsi_max_burst_len = cpu_to_le16(sess->max_burst / 3705 BYTE_UNITS); 3706 fw_ddb_entry->iscsi_def_time2wait = cpu_to_le16(sess->time2wait); 3707 fw_ddb_entry->iscsi_def_time2retain = cpu_to_le16(sess->time2retain); 3708 fw_ddb_entry->tgt_portal_grp = cpu_to_le16(sess->tpgt); 3709 fw_ddb_entry->mss = cpu_to_le16(conn->max_segment_size); 3710 fw_ddb_entry->tcp_xmt_wsf = (uint8_t) cpu_to_le32(conn->tcp_xmit_wsf); 3711 fw_ddb_entry->tcp_rcv_wsf = (uint8_t) cpu_to_le32(conn->tcp_recv_wsf); 3712 fw_ddb_entry->ipv6_flow_lbl = cpu_to_le16(conn->ipv6_flow_label); 3713 fw_ddb_entry->ka_timeout = cpu_to_le16(conn->keepalive_timeout); 3714 fw_ddb_entry->lcl_port = cpu_to_le16(conn->local_port); 3715 fw_ddb_entry->stat_sn = cpu_to_le32(conn->statsn); 3716 fw_ddb_entry->exp_stat_sn = cpu_to_le32(conn->exp_statsn); 3717 fw_ddb_entry->ddb_link = cpu_to_le16(sess->discovery_parent_idx); 3718 fw_ddb_entry->chap_tbl_idx = cpu_to_le16(sess->chap_out_idx); 3719 fw_ddb_entry->tsid = cpu_to_le16(sess->tsid); 3720 fw_ddb_entry->port = cpu_to_le16(conn->port); 3721 fw_ddb_entry->def_timeout = 3722 cpu_to_le16(sess->default_taskmgmt_timeout); 3723 3724 if (!strncmp(sess->portal_type, PORTAL_TYPE_IPV6, 4)) 3725 fw_ddb_entry->ipv4_tos = conn->ipv6_traffic_class; 3726 else 3727 fw_ddb_entry->ipv4_tos = conn->ipv4_tos; 3728 3729 if (conn->ipaddress) 3730 memcpy(fw_ddb_entry->ip_addr, conn->ipaddress, 3731 sizeof(fw_ddb_entry->ip_addr)); 3732 3733 if (conn->redirect_ipaddr) 3734 memcpy(fw_ddb_entry->tgt_addr, conn->redirect_ipaddr, 3735 sizeof(fw_ddb_entry->tgt_addr)); 3736 3737 if (conn->link_local_ipv6_addr) 3738 memcpy(fw_ddb_entry->link_local_ipv6_addr, 3739 conn->link_local_ipv6_addr, 3740 sizeof(fw_ddb_entry->link_local_ipv6_addr)); 3741 3742 if (sess->targetname) 3743 memcpy(fw_ddb_entry->iscsi_name, sess->targetname, 3744 sizeof(fw_ddb_entry->iscsi_name)); 3745 3746 if (sess->targetalias) 3747 memcpy(fw_ddb_entry->iscsi_alias, sess->targetalias, 3748 sizeof(fw_ddb_entry->iscsi_alias)); 3749 3750 COPY_ISID(fw_ddb_entry->isid, sess->isid); 3751 3752 return 0; 3753 } 3754 3755 static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn, 3756 struct iscsi_session *sess, 3757 struct dev_db_entry *fw_ddb_entry) 3758 { 3759 unsigned long options = 0; 3760 uint16_t ddb_link; 3761 uint16_t disc_parent; 3762 char ip_addr[DDB_IPADDR_LEN]; 3763 3764 options = le16_to_cpu(fw_ddb_entry->options); 3765 conn->is_fw_assigned_ipv6 = test_bit(OPT_IS_FW_ASSIGNED_IPV6, &options); 3766 sess->auto_snd_tgt_disable = test_bit(OPT_AUTO_SENDTGTS_DISABLE, 3767 &options); 3768 sess->discovery_sess = test_bit(OPT_DISC_SESSION, &options); 3769 3770 options = le16_to_cpu(fw_ddb_entry->iscsi_options); 3771 conn->hdrdgst_en = test_bit(ISCSIOPT_HEADER_DIGEST_EN, &options); 3772 conn->datadgst_en = test_bit(ISCSIOPT_DATA_DIGEST_EN, &options); 3773 sess->imm_data_en = test_bit(ISCSIOPT_IMMEDIATE_DATA_EN, &options); 3774 sess->initial_r2t_en = test_bit(ISCSIOPT_INITIAL_R2T_EN, &options); 3775 sess->dataseq_inorder_en = test_bit(ISCSIOPT_DATA_SEQ_IN_ORDER, 3776 &options); 3777 sess->pdu_inorder_en = test_bit(ISCSIOPT_DATA_PDU_IN_ORDER, &options); 3778 sess->chap_auth_en = test_bit(ISCSIOPT_CHAP_AUTH_EN, &options); 3779 sess->discovery_logout_en = test_bit(ISCSIOPT_DISCOVERY_LOGOUT_EN, 3780 &options); 3781 sess->bidi_chap_en = test_bit(ISCSIOPT_BIDI_CHAP_EN, &options); 3782 sess->discovery_auth_optional = 3783 test_bit(ISCSIOPT_DISCOVERY_AUTH_OPTIONAL, &options); 3784 if (test_bit(ISCSIOPT_ERL1, &options)) 3785 sess->erl |= BIT_1; 3786 if (test_bit(ISCSIOPT_ERL0, &options)) 3787 sess->erl |= BIT_0; 3788 3789 options = le16_to_cpu(fw_ddb_entry->tcp_options); 3790 conn->tcp_timestamp_stat = test_bit(TCPOPT_TIMESTAMP_STAT, &options); 3791 conn->tcp_nagle_disable = test_bit(TCPOPT_NAGLE_DISABLE, &options); 3792 conn->tcp_wsf_disable = test_bit(TCPOPT_WSF_DISABLE, &options); 3793 if (test_bit(TCPOPT_TIMER_SCALE3, &options)) 3794 conn->tcp_timer_scale |= BIT_3; 3795 if (test_bit(TCPOPT_TIMER_SCALE2, &options)) 3796 conn->tcp_timer_scale |= BIT_2; 3797 if (test_bit(TCPOPT_TIMER_SCALE1, &options)) 3798 conn->tcp_timer_scale |= BIT_1; 3799 3800 conn->tcp_timer_scale >>= 1; 3801 conn->tcp_timestamp_en = test_bit(TCPOPT_TIMESTAMP_EN, &options); 3802 3803 options = le16_to_cpu(fw_ddb_entry->ip_options); 3804 conn->fragment_disable = test_bit(IPOPT_FRAGMENT_DISABLE, &options); 3805 3806 conn->max_recv_dlength = BYTE_UNITS * 3807 le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 3808 conn->max_xmit_dlength = BYTE_UNITS * 3809 le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 3810 sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 3811 sess->first_burst = BYTE_UNITS * 3812 le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 3813 sess->max_burst = BYTE_UNITS * 3814 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 3815 sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3816 sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 3817 sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 3818 conn->max_segment_size = le16_to_cpu(fw_ddb_entry->mss); 3819 conn->tcp_xmit_wsf = fw_ddb_entry->tcp_xmt_wsf; 3820 conn->tcp_recv_wsf = fw_ddb_entry->tcp_rcv_wsf; 3821 conn->ipv4_tos = fw_ddb_entry->ipv4_tos; 3822 conn->keepalive_tmo = le16_to_cpu(fw_ddb_entry->ka_timeout); 3823 conn->local_port = le16_to_cpu(fw_ddb_entry->lcl_port); 3824 conn->statsn = le32_to_cpu(fw_ddb_entry->stat_sn); 3825 conn->exp_statsn = le32_to_cpu(fw_ddb_entry->exp_stat_sn); 3826 sess->tsid = le16_to_cpu(fw_ddb_entry->tsid); 3827 COPY_ISID(sess->isid, fw_ddb_entry->isid); 3828 3829 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 3830 if (ddb_link == DDB_ISNS) 3831 disc_parent = ISCSI_DISC_PARENT_ISNS; 3832 else if (ddb_link == DDB_NO_LINK) 3833 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3834 else if (ddb_link < MAX_DDB_ENTRIES) 3835 disc_parent = ISCSI_DISC_PARENT_SENDTGT; 3836 else 3837 disc_parent = ISCSI_DISC_PARENT_UNKNOWN; 3838 3839 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 3840 iscsi_get_discovery_parent_name(disc_parent), 0); 3841 3842 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_TARGET_ALIAS, 3843 (char *)fw_ddb_entry->iscsi_alias, 0); 3844 3845 options = le16_to_cpu(fw_ddb_entry->options); 3846 if (options & DDB_OPT_IPV6_DEVICE) { 3847 memset(ip_addr, 0, sizeof(ip_addr)); 3848 sprintf(ip_addr, "%pI6", fw_ddb_entry->link_local_ipv6_addr); 3849 iscsi_set_param(conn->cls_conn, ISCSI_PARAM_LOCAL_IPADDR, 3850 (char *)ip_addr, 0); 3851 } 3852 } 3853 3854 static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 3855 struct dev_db_entry *fw_ddb_entry, 3856 struct iscsi_cls_session *cls_sess, 3857 struct iscsi_cls_conn *cls_conn) 3858 { 3859 int buflen = 0; 3860 struct iscsi_session *sess; 3861 struct ddb_entry *ddb_entry; 3862 struct ql4_chap_table chap_tbl; 3863 struct iscsi_conn *conn; 3864 char ip_addr[DDB_IPADDR_LEN]; 3865 uint16_t options = 0; 3866 3867 sess = cls_sess->dd_data; 3868 ddb_entry = sess->dd_data; 3869 conn = cls_conn->dd_data; 3870 memset(&chap_tbl, 0, sizeof(chap_tbl)); 3871 3872 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3873 3874 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3875 3876 sess->def_taskmgmt_tmo = le16_to_cpu(fw_ddb_entry->def_timeout); 3877 conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 3878 3879 memset(ip_addr, 0, sizeof(ip_addr)); 3880 options = le16_to_cpu(fw_ddb_entry->options); 3881 if (options & DDB_OPT_IPV6_DEVICE) { 3882 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv6", 4); 3883 3884 memset(ip_addr, 0, sizeof(ip_addr)); 3885 sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 3886 } else { 3887 iscsi_set_param(cls_conn, ISCSI_PARAM_PORTAL_TYPE, "ipv4", 4); 3888 sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 3889 } 3890 3891 iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 3892 (char *)ip_addr, buflen); 3893 iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 3894 (char *)fw_ddb_entry->iscsi_name, buflen); 3895 iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 3896 (char *)ha->name_string, buflen); 3897 3898 if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) { 3899 if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name, 3900 chap_tbl.secret, 3901 ddb_entry->chap_tbl_idx)) { 3902 iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME, 3903 (char *)chap_tbl.name, 3904 strlen((char *)chap_tbl.name)); 3905 iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD, 3906 (char *)chap_tbl.secret, 3907 chap_tbl.secret_len); 3908 } 3909 } 3910 } 3911 3912 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 3913 struct ddb_entry *ddb_entry) 3914 { 3915 struct iscsi_cls_session *cls_sess; 3916 struct iscsi_cls_conn *cls_conn; 3917 uint32_t ddb_state; 3918 dma_addr_t fw_ddb_entry_dma; 3919 struct dev_db_entry *fw_ddb_entry; 3920 3921 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3922 &fw_ddb_entry_dma, GFP_KERNEL); 3923 if (!fw_ddb_entry) { 3924 ql4_printk(KERN_ERR, ha, 3925 "%s: Unable to allocate dma buffer\n", __func__); 3926 goto exit_session_conn_fwddb_param; 3927 } 3928 3929 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3930 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3931 NULL, NULL, NULL) == QLA_ERROR) { 3932 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3933 "get_ddb_entry for fw_ddb_index %d\n", 3934 ha->host_no, __func__, 3935 ddb_entry->fw_ddb_index)); 3936 goto exit_session_conn_fwddb_param; 3937 } 3938 3939 cls_sess = ddb_entry->sess; 3940 3941 cls_conn = ddb_entry->conn; 3942 3943 /* Update params */ 3944 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 3945 3946 exit_session_conn_fwddb_param: 3947 if (fw_ddb_entry) 3948 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3949 fw_ddb_entry, fw_ddb_entry_dma); 3950 } 3951 3952 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 3953 struct ddb_entry *ddb_entry) 3954 { 3955 struct iscsi_cls_session *cls_sess; 3956 struct iscsi_cls_conn *cls_conn; 3957 struct iscsi_session *sess; 3958 struct iscsi_conn *conn; 3959 uint32_t ddb_state; 3960 dma_addr_t fw_ddb_entry_dma; 3961 struct dev_db_entry *fw_ddb_entry; 3962 3963 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 3964 &fw_ddb_entry_dma, GFP_KERNEL); 3965 if (!fw_ddb_entry) { 3966 ql4_printk(KERN_ERR, ha, 3967 "%s: Unable to allocate dma buffer\n", __func__); 3968 goto exit_session_conn_param; 3969 } 3970 3971 if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 3972 fw_ddb_entry_dma, NULL, NULL, &ddb_state, 3973 NULL, NULL, NULL) == QLA_ERROR) { 3974 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 3975 "get_ddb_entry for fw_ddb_index %d\n", 3976 ha->host_no, __func__, 3977 ddb_entry->fw_ddb_index)); 3978 goto exit_session_conn_param; 3979 } 3980 3981 cls_sess = ddb_entry->sess; 3982 sess = cls_sess->dd_data; 3983 3984 cls_conn = ddb_entry->conn; 3985 conn = cls_conn->dd_data; 3986 3987 /* Update timers after login */ 3988 ddb_entry->default_relogin_timeout = 3989 (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 3990 (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 3991 le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 3992 ddb_entry->default_time2wait = 3993 le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 3994 3995 /* Update params */ 3996 ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 3997 qla4xxx_copy_to_sess_conn_params(conn, sess, fw_ddb_entry); 3998 3999 memcpy(sess->initiatorname, ha->name_string, 4000 min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 4001 4002 exit_session_conn_param: 4003 if (fw_ddb_entry) 4004 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 4005 fw_ddb_entry, fw_ddb_entry_dma); 4006 } 4007 4008 /* 4009 * Timer routines 4010 */ 4011 static void qla4xxx_timer(struct timer_list *t); 4012 4013 static void qla4xxx_start_timer(struct scsi_qla_host *ha, 4014 unsigned long interval) 4015 { 4016 DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 4017 __func__, ha->host->host_no)); 4018 timer_setup(&ha->timer, qla4xxx_timer, 0); 4019 ha->timer.expires = jiffies + interval * HZ; 4020 add_timer(&ha->timer); 4021 ha->timer_active = 1; 4022 } 4023 4024 static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 4025 { 4026 timer_delete_sync(&ha->timer); 4027 ha->timer_active = 0; 4028 } 4029 4030 /*** 4031 * qla4xxx_mark_device_missing - blocks the session 4032 * @cls_session: Pointer to the session to be blocked 4033 * @ddb_entry: Pointer to device database entry 4034 * 4035 * This routine marks a device missing and close connection. 4036 **/ 4037 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 4038 { 4039 iscsi_block_session(cls_session); 4040 } 4041 4042 /** 4043 * qla4xxx_mark_all_devices_missing - mark all devices as missing. 4044 * @ha: Pointer to host adapter structure. 4045 * 4046 * This routine marks a device missing and resets the relogin retry count. 4047 **/ 4048 void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 4049 { 4050 iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 4051 } 4052 4053 static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 4054 struct ddb_entry *ddb_entry, 4055 struct scsi_cmnd *cmd) 4056 { 4057 struct srb *srb; 4058 4059 srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 4060 if (!srb) 4061 return srb; 4062 4063 kref_init(&srb->srb_ref); 4064 srb->ha = ha; 4065 srb->ddb = ddb_entry; 4066 srb->cmd = cmd; 4067 srb->flags = 0; 4068 qla4xxx_cmd_priv(cmd)->srb = srb; 4069 4070 return srb; 4071 } 4072 4073 static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 4074 { 4075 struct scsi_cmnd *cmd = srb->cmd; 4076 4077 if (srb->flags & SRB_DMA_VALID) { 4078 scsi_dma_unmap(cmd); 4079 srb->flags &= ~SRB_DMA_VALID; 4080 } 4081 qla4xxx_cmd_priv(cmd)->srb = NULL; 4082 } 4083 4084 void qla4xxx_srb_compl(struct kref *ref) 4085 { 4086 struct srb *srb = container_of(ref, struct srb, srb_ref); 4087 struct scsi_cmnd *cmd = srb->cmd; 4088 struct scsi_qla_host *ha = srb->ha; 4089 4090 qla4xxx_srb_free_dma(ha, srb); 4091 4092 mempool_free(srb, ha->srb_mempool); 4093 4094 scsi_done(cmd); 4095 } 4096 4097 /** 4098 * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 4099 * @host: scsi host 4100 * @cmd: Pointer to Linux's SCSI command structure 4101 * 4102 * Remarks: 4103 * This routine is invoked by Linux to send a SCSI command to the driver. 4104 * The mid-level driver tries to ensure that queuecommand never gets 4105 * invoked concurrently with itself or the interrupt handler (although 4106 * the interrupt handler may call this routine as part of request- 4107 * completion handling). Unfortunely, it sometimes calls the scheduler 4108 * in interrupt context which is a big NO! NO!. 4109 **/ 4110 static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 4111 { 4112 struct scsi_qla_host *ha = to_qla_host(host); 4113 struct ddb_entry *ddb_entry = cmd->device->hostdata; 4114 struct iscsi_cls_session *sess = ddb_entry->sess; 4115 struct srb *srb; 4116 int rval; 4117 4118 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4119 if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 4120 cmd->result = DID_NO_CONNECT << 16; 4121 else 4122 cmd->result = DID_REQUEUE << 16; 4123 goto qc_fail_command; 4124 } 4125 4126 if (!sess) { 4127 cmd->result = DID_IMM_RETRY << 16; 4128 goto qc_fail_command; 4129 } 4130 4131 rval = iscsi_session_chkready(sess); 4132 if (rval) { 4133 cmd->result = rval; 4134 goto qc_fail_command; 4135 } 4136 4137 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4138 test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4139 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4140 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4141 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4142 !test_bit(AF_ONLINE, &ha->flags) || 4143 !test_bit(AF_LINK_UP, &ha->flags) || 4144 test_bit(AF_LOOPBACK, &ha->flags) || 4145 test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) || 4146 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags) || 4147 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 4148 goto qc_host_busy; 4149 4150 srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 4151 if (!srb) 4152 goto qc_host_busy; 4153 4154 rval = qla4xxx_send_command_to_isp(ha, srb); 4155 if (rval != QLA_SUCCESS) 4156 goto qc_host_busy_free_sp; 4157 4158 return 0; 4159 4160 qc_host_busy_free_sp: 4161 qla4xxx_srb_free_dma(ha, srb); 4162 mempool_free(srb, ha->srb_mempool); 4163 4164 qc_host_busy: 4165 return SCSI_MLQUEUE_HOST_BUSY; 4166 4167 qc_fail_command: 4168 scsi_done(cmd); 4169 4170 return 0; 4171 } 4172 4173 /** 4174 * qla4xxx_mem_free - frees memory allocated to adapter 4175 * @ha: Pointer to host adapter structure. 4176 * 4177 * Frees memory previously allocated by qla4xxx_mem_alloc 4178 **/ 4179 static void qla4xxx_mem_free(struct scsi_qla_host *ha) 4180 { 4181 if (ha->queues) 4182 dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 4183 ha->queues_dma); 4184 4185 vfree(ha->fw_dump); 4186 4187 ha->queues_len = 0; 4188 ha->queues = NULL; 4189 ha->queues_dma = 0; 4190 ha->request_ring = NULL; 4191 ha->request_dma = 0; 4192 ha->response_ring = NULL; 4193 ha->response_dma = 0; 4194 ha->shadow_regs = NULL; 4195 ha->shadow_regs_dma = 0; 4196 ha->fw_dump = NULL; 4197 ha->fw_dump_size = 0; 4198 4199 /* Free srb pool. */ 4200 mempool_destroy(ha->srb_mempool); 4201 ha->srb_mempool = NULL; 4202 4203 dma_pool_destroy(ha->chap_dma_pool); 4204 4205 vfree(ha->chap_list); 4206 ha->chap_list = NULL; 4207 4208 dma_pool_destroy(ha->fw_ddb_dma_pool); 4209 4210 /* release io space registers */ 4211 if (is_qla8022(ha)) { 4212 if (ha->nx_pcibase) 4213 iounmap( 4214 (struct device_reg_82xx __iomem *)ha->nx_pcibase); 4215 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4216 if (ha->nx_pcibase) 4217 iounmap( 4218 (struct device_reg_83xx __iomem *)ha->nx_pcibase); 4219 } else if (ha->reg) { 4220 iounmap(ha->reg); 4221 } 4222 4223 vfree(ha->reset_tmplt.buff); 4224 4225 pci_release_regions(ha->pdev); 4226 } 4227 4228 /** 4229 * qla4xxx_mem_alloc - allocates memory for use by adapter. 4230 * @ha: Pointer to host adapter structure 4231 * 4232 * Allocates DMA memory for request and response queues. Also allocates memory 4233 * for srbs. 4234 **/ 4235 static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 4236 { 4237 unsigned long align; 4238 4239 /* Allocate contiguous block of DMA memory for queues. */ 4240 ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4241 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 4242 sizeof(struct shadow_regs) + 4243 MEM_ALIGN_VALUE + 4244 (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 4245 ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 4246 &ha->queues_dma, GFP_KERNEL); 4247 if (ha->queues == NULL) { 4248 ql4_printk(KERN_WARNING, ha, 4249 "Memory Allocation failed - queues.\n"); 4250 4251 goto mem_alloc_error_exit; 4252 } 4253 4254 /* 4255 * As per RISC alignment requirements -- the bus-address must be a 4256 * multiple of the request-ring size (in bytes). 4257 */ 4258 align = 0; 4259 if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 4260 align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 4261 (MEM_ALIGN_VALUE - 1)); 4262 4263 /* Update request and response queue pointers. */ 4264 ha->request_dma = ha->queues_dma + align; 4265 ha->request_ring = (struct queue_entry *) (ha->queues + align); 4266 ha->response_dma = ha->queues_dma + align + 4267 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 4268 ha->response_ring = (struct queue_entry *) (ha->queues + align + 4269 (REQUEST_QUEUE_DEPTH * 4270 QUEUE_SIZE)); 4271 ha->shadow_regs_dma = ha->queues_dma + align + 4272 (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 4273 (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 4274 ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 4275 (REQUEST_QUEUE_DEPTH * 4276 QUEUE_SIZE) + 4277 (RESPONSE_QUEUE_DEPTH * 4278 QUEUE_SIZE)); 4279 4280 /* Allocate memory for srb pool. */ 4281 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 4282 mempool_free_slab, srb_cachep); 4283 if (ha->srb_mempool == NULL) { 4284 ql4_printk(KERN_WARNING, ha, 4285 "Memory Allocation failed - SRB Pool.\n"); 4286 4287 goto mem_alloc_error_exit; 4288 } 4289 4290 ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 4291 CHAP_DMA_BLOCK_SIZE, 8, 0); 4292 4293 if (ha->chap_dma_pool == NULL) { 4294 ql4_printk(KERN_WARNING, ha, 4295 "%s: chap_dma_pool allocation failed..\n", __func__); 4296 goto mem_alloc_error_exit; 4297 } 4298 4299 ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 4300 DDB_DMA_BLOCK_SIZE, 8, 0); 4301 4302 if (ha->fw_ddb_dma_pool == NULL) { 4303 ql4_printk(KERN_WARNING, ha, 4304 "%s: fw_ddb_dma_pool allocation failed..\n", 4305 __func__); 4306 goto mem_alloc_error_exit; 4307 } 4308 4309 return QLA_SUCCESS; 4310 4311 mem_alloc_error_exit: 4312 return QLA_ERROR; 4313 } 4314 4315 /** 4316 * qla4_8xxx_check_temp - Check the ISP82XX temperature. 4317 * @ha: adapter block pointer. 4318 * 4319 * Note: The caller should not hold the idc lock. 4320 **/ 4321 static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 4322 { 4323 uint32_t temp, temp_state, temp_val; 4324 int status = QLA_SUCCESS; 4325 4326 temp = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_TEMP_STATE); 4327 4328 temp_state = qla82xx_get_temp_state(temp); 4329 temp_val = qla82xx_get_temp_val(temp); 4330 4331 if (temp_state == QLA82XX_TEMP_PANIC) { 4332 ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 4333 " exceeds maximum allowed. Hardware has been shut" 4334 " down.\n", temp_val); 4335 status = QLA_ERROR; 4336 } else if (temp_state == QLA82XX_TEMP_WARN) { 4337 if (ha->temperature == QLA82XX_TEMP_NORMAL) 4338 ql4_printk(KERN_WARNING, ha, "Device temperature %d" 4339 " degrees C exceeds operating range." 4340 " Immediate action needed.\n", temp_val); 4341 } else { 4342 if (ha->temperature == QLA82XX_TEMP_WARN) 4343 ql4_printk(KERN_INFO, ha, "Device temperature is" 4344 " now %d degrees C in normal range.\n", 4345 temp_val); 4346 } 4347 ha->temperature = temp_state; 4348 return status; 4349 } 4350 4351 /** 4352 * qla4_8xxx_check_fw_alive - Check firmware health 4353 * @ha: Pointer to host adapter structure. 4354 * 4355 * Context: Interrupt 4356 **/ 4357 static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 4358 { 4359 uint32_t fw_heartbeat_counter; 4360 int status = QLA_SUCCESS; 4361 4362 fw_heartbeat_counter = qla4_8xxx_rd_direct(ha, 4363 QLA8XXX_PEG_ALIVE_COUNTER); 4364 /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 4365 if (fw_heartbeat_counter == 0xffffffff) { 4366 DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 4367 "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 4368 ha->host_no, __func__)); 4369 return status; 4370 } 4371 4372 if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 4373 ha->seconds_since_last_heartbeat++; 4374 /* FW not alive after 2 seconds */ 4375 if (ha->seconds_since_last_heartbeat == 2) { 4376 ha->seconds_since_last_heartbeat = 0; 4377 qla4_8xxx_dump_peg_reg(ha); 4378 status = QLA_ERROR; 4379 } 4380 } else 4381 ha->seconds_since_last_heartbeat = 0; 4382 4383 ha->fw_heartbeat_counter = fw_heartbeat_counter; 4384 return status; 4385 } 4386 4387 static void qla4_8xxx_process_fw_error(struct scsi_qla_host *ha) 4388 { 4389 uint32_t halt_status; 4390 int halt_status_unrecoverable = 0; 4391 4392 halt_status = qla4_8xxx_rd_direct(ha, QLA8XXX_PEG_HALT_STATUS1); 4393 4394 if (is_qla8022(ha)) { 4395 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4396 __func__); 4397 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4398 CRB_NIU_XG_PAUSE_CTL_P0 | 4399 CRB_NIU_XG_PAUSE_CTL_P1); 4400 4401 if (QLA82XX_FWERROR_CODE(halt_status) == 0x67) 4402 ql4_printk(KERN_ERR, ha, "%s: Firmware aborted with error code 0x00006700. Device is being reset\n", 4403 __func__); 4404 if (halt_status & HALT_STATUS_UNRECOVERABLE) 4405 halt_status_unrecoverable = 1; 4406 } else if (is_qla8032(ha) || is_qla8042(ha)) { 4407 if (halt_status & QLA83XX_HALT_STATUS_FW_RESET) 4408 ql4_printk(KERN_ERR, ha, "%s: Firmware error detected device is being reset\n", 4409 __func__); 4410 else if (halt_status & QLA83XX_HALT_STATUS_UNRECOVERABLE) 4411 halt_status_unrecoverable = 1; 4412 } 4413 4414 /* 4415 * Since we cannot change dev_state in interrupt context, 4416 * set appropriate DPC flag then wakeup DPC 4417 */ 4418 if (halt_status_unrecoverable) { 4419 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4420 } else { 4421 ql4_printk(KERN_INFO, ha, "%s: detect abort needed!\n", 4422 __func__); 4423 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4424 } 4425 qla4xxx_mailbox_premature_completion(ha); 4426 qla4xxx_wake_dpc(ha); 4427 } 4428 4429 /** 4430 * qla4_8xxx_watchdog - Poll dev state 4431 * @ha: Pointer to host adapter structure. 4432 * 4433 * Context: Interrupt 4434 **/ 4435 void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 4436 { 4437 uint32_t dev_state; 4438 uint32_t idc_ctrl; 4439 4440 if (is_qla8032(ha) && 4441 (qla4_83xx_is_detached(ha) == QLA_SUCCESS)) 4442 WARN_ONCE(1, "%s: iSCSI function %d marked invisible\n", 4443 __func__, ha->func_num); 4444 4445 /* don't poll if reset is going on */ 4446 if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 4447 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4448 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 4449 dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE); 4450 4451 if (qla4_8xxx_check_temp(ha)) { 4452 if (is_qla8022(ha)) { 4453 ql4_printk(KERN_INFO, ha, "disabling pause transmit on port 0 & 1.\n"); 4454 qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 4455 CRB_NIU_XG_PAUSE_CTL_P0 | 4456 CRB_NIU_XG_PAUSE_CTL_P1); 4457 } 4458 set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 4459 qla4xxx_wake_dpc(ha); 4460 } else if (dev_state == QLA8XXX_DEV_NEED_RESET && 4461 !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4462 4463 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED RESET!\n", 4464 __func__); 4465 4466 if (is_qla8032(ha) || is_qla8042(ha)) { 4467 idc_ctrl = qla4_83xx_rd_reg(ha, 4468 QLA83XX_IDC_DRV_CTRL); 4469 if (!(idc_ctrl & GRACEFUL_RESET_BIT1)) { 4470 ql4_printk(KERN_INFO, ha, "%s: Graceful reset bit is not set\n", 4471 __func__); 4472 qla4xxx_mailbox_premature_completion( 4473 ha); 4474 } 4475 } 4476 4477 if ((is_qla8032(ha) || is_qla8042(ha)) || 4478 (is_qla8022(ha) && !ql4xdontresethba)) { 4479 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4480 qla4xxx_wake_dpc(ha); 4481 } 4482 } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && 4483 !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 4484 ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 4485 __func__); 4486 set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 4487 qla4xxx_wake_dpc(ha); 4488 } else { 4489 /* Check firmware health */ 4490 if (qla4_8xxx_check_fw_alive(ha)) 4491 qla4_8xxx_process_fw_error(ha); 4492 } 4493 } 4494 } 4495 4496 static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 4497 { 4498 struct iscsi_session *sess; 4499 struct ddb_entry *ddb_entry; 4500 struct scsi_qla_host *ha; 4501 4502 sess = cls_sess->dd_data; 4503 ddb_entry = sess->dd_data; 4504 ha = ddb_entry->ha; 4505 4506 if (!(ddb_entry->ddb_type == FLASH_DDB)) 4507 return; 4508 4509 if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 4510 !iscsi_is_session_online(cls_sess)) { 4511 if (atomic_read(&ddb_entry->retry_relogin_timer) != 4512 INVALID_ENTRY) { 4513 if (atomic_read(&ddb_entry->retry_relogin_timer) == 4514 0) { 4515 atomic_set(&ddb_entry->retry_relogin_timer, 4516 INVALID_ENTRY); 4517 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4518 set_bit(DF_RELOGIN, &ddb_entry->flags); 4519 DEBUG2(ql4_printk(KERN_INFO, ha, 4520 "%s: index [%d] login device\n", 4521 __func__, ddb_entry->fw_ddb_index)); 4522 } else 4523 atomic_dec(&ddb_entry->retry_relogin_timer); 4524 } 4525 } 4526 4527 /* Wait for relogin to timeout */ 4528 if (atomic_read(&ddb_entry->relogin_timer) && 4529 (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 4530 /* 4531 * If the relogin times out and the device is 4532 * still NOT ONLINE then try and relogin again. 4533 */ 4534 if (!iscsi_is_session_online(cls_sess)) { 4535 /* Reset retry relogin timer */ 4536 atomic_inc(&ddb_entry->relogin_retry_count); 4537 DEBUG2(ql4_printk(KERN_INFO, ha, 4538 "%s: index[%d] relogin timed out-retrying" 4539 " relogin (%d), retry (%d)\n", __func__, 4540 ddb_entry->fw_ddb_index, 4541 atomic_read(&ddb_entry->relogin_retry_count), 4542 ddb_entry->default_time2wait + 4)); 4543 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 4544 atomic_set(&ddb_entry->retry_relogin_timer, 4545 ddb_entry->default_time2wait + 4); 4546 } 4547 } 4548 } 4549 4550 /** 4551 * qla4xxx_timer - checks every second for work to do. 4552 * @t: Context to obtain pointer to host adapter structure. 4553 **/ 4554 static void qla4xxx_timer(struct timer_list *t) 4555 { 4556 struct scsi_qla_host *ha = timer_container_of(ha, t, timer); 4557 int start_dpc = 0; 4558 uint16_t w; 4559 4560 iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 4561 4562 /* If we are in the middle of AER/EEH processing 4563 * skip any processing and reschedule the timer 4564 */ 4565 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 4566 mod_timer(&ha->timer, jiffies + HZ); 4567 return; 4568 } 4569 4570 /* Hardware read to trigger an EEH error during mailbox waits. */ 4571 if (!pci_channel_offline(ha->pdev)) 4572 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 4573 4574 if (is_qla80XX(ha)) 4575 qla4_8xxx_watchdog(ha); 4576 4577 if (is_qla40XX(ha)) { 4578 /* Check for heartbeat interval. */ 4579 if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 4580 ha->heartbeat_interval != 0) { 4581 ha->seconds_since_last_heartbeat++; 4582 if (ha->seconds_since_last_heartbeat > 4583 ha->heartbeat_interval + 2) 4584 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4585 } 4586 } 4587 4588 /* Process any deferred work. */ 4589 if (!list_empty(&ha->work_list)) 4590 start_dpc++; 4591 4592 /* Wakeup the dpc routine for this adapter, if needed. */ 4593 if (start_dpc || 4594 test_bit(DPC_RESET_HA, &ha->dpc_flags) || 4595 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 4596 test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 4597 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 4598 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 4599 test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 4600 test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 4601 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 4602 test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 4603 test_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags) || 4604 test_bit(DPC_AEN, &ha->dpc_flags)) { 4605 DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 4606 " - dpc flags = 0x%lx\n", 4607 ha->host_no, __func__, ha->dpc_flags)); 4608 qla4xxx_wake_dpc(ha); 4609 } 4610 4611 /* Reschedule timer thread to call us back in one second */ 4612 mod_timer(&ha->timer, jiffies + HZ); 4613 4614 DEBUG2(ha->seconds_since_last_intr++); 4615 } 4616 4617 /** 4618 * qla4xxx_cmd_wait - waits for all outstanding commands to complete 4619 * @ha: Pointer to host adapter structure. 4620 * 4621 * This routine stalls the driver until all outstanding commands are returned. 4622 * Caller must release the Hardware Lock prior to calling this routine. 4623 **/ 4624 static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 4625 { 4626 uint32_t index = 0; 4627 unsigned long flags; 4628 struct scsi_cmnd *cmd; 4629 unsigned long wtime; 4630 uint32_t wtmo; 4631 4632 if (is_qla40XX(ha)) 4633 wtmo = WAIT_CMD_TOV; 4634 else 4635 wtmo = ha->nx_reset_timeout / 2; 4636 4637 wtime = jiffies + (wtmo * HZ); 4638 4639 DEBUG2(ql4_printk(KERN_INFO, ha, 4640 "Wait up to %u seconds for cmds to complete\n", 4641 wtmo)); 4642 4643 while (!time_after_eq(jiffies, wtime)) { 4644 spin_lock_irqsave(&ha->hardware_lock, flags); 4645 /* Find a command that hasn't completed. */ 4646 for (index = 0; index < ha->host->can_queue; index++) { 4647 cmd = scsi_host_find_tag(ha->host, index); 4648 /* 4649 * We cannot just check if the index is valid, 4650 * becase if we are run from the scsi eh, then 4651 * the scsi/block layer is going to prevent 4652 * the tag from being released. 4653 */ 4654 if (cmd != NULL && qla4xxx_cmd_priv(cmd)->srb) 4655 break; 4656 } 4657 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4658 4659 /* If No Commands are pending, wait is complete */ 4660 if (index == ha->host->can_queue) 4661 return QLA_SUCCESS; 4662 4663 msleep(1000); 4664 } 4665 /* If we timed out on waiting for commands to come back 4666 * return ERROR. */ 4667 return QLA_ERROR; 4668 } 4669 4670 int qla4xxx_hw_reset(struct scsi_qla_host *ha) 4671 { 4672 uint32_t ctrl_status; 4673 unsigned long flags = 0; 4674 4675 DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 4676 4677 if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 4678 return QLA_ERROR; 4679 4680 spin_lock_irqsave(&ha->hardware_lock, flags); 4681 4682 /* 4683 * If the SCSI Reset Interrupt bit is set, clear it. 4684 * Otherwise, the Soft Reset won't work. 4685 */ 4686 ctrl_status = readw(&ha->reg->ctrl_status); 4687 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 4688 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4689 4690 /* Issue Soft Reset */ 4691 writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 4692 readl(&ha->reg->ctrl_status); 4693 4694 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4695 return QLA_SUCCESS; 4696 } 4697 4698 /** 4699 * qla4xxx_soft_reset - performs soft reset. 4700 * @ha: Pointer to host adapter structure. 4701 **/ 4702 int qla4xxx_soft_reset(struct scsi_qla_host *ha) 4703 { 4704 uint32_t max_wait_time; 4705 unsigned long flags = 0; 4706 int status; 4707 uint32_t ctrl_status; 4708 4709 status = qla4xxx_hw_reset(ha); 4710 if (status != QLA_SUCCESS) 4711 return status; 4712 4713 status = QLA_ERROR; 4714 /* Wait until the Network Reset Intr bit is cleared */ 4715 max_wait_time = RESET_INTR_TOV; 4716 do { 4717 spin_lock_irqsave(&ha->hardware_lock, flags); 4718 ctrl_status = readw(&ha->reg->ctrl_status); 4719 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4720 4721 if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 4722 break; 4723 4724 msleep(1000); 4725 } while ((--max_wait_time)); 4726 4727 if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 4728 DEBUG2(printk(KERN_WARNING 4729 "scsi%ld: Network Reset Intr not cleared by " 4730 "Network function, clearing it now!\n", 4731 ha->host_no)); 4732 spin_lock_irqsave(&ha->hardware_lock, flags); 4733 writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 4734 readl(&ha->reg->ctrl_status); 4735 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4736 } 4737 4738 /* Wait until the firmware tells us the Soft Reset is done */ 4739 max_wait_time = SOFT_RESET_TOV; 4740 do { 4741 spin_lock_irqsave(&ha->hardware_lock, flags); 4742 ctrl_status = readw(&ha->reg->ctrl_status); 4743 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4744 4745 if ((ctrl_status & CSR_SOFT_RESET) == 0) { 4746 status = QLA_SUCCESS; 4747 break; 4748 } 4749 4750 msleep(1000); 4751 } while ((--max_wait_time)); 4752 4753 /* 4754 * Also, make sure that the SCSI Reset Interrupt bit has been cleared 4755 * after the soft reset has taken place. 4756 */ 4757 spin_lock_irqsave(&ha->hardware_lock, flags); 4758 ctrl_status = readw(&ha->reg->ctrl_status); 4759 if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 4760 writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 4761 readl(&ha->reg->ctrl_status); 4762 } 4763 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4764 4765 /* If soft reset fails then most probably the bios on other 4766 * function is also enabled. 4767 * Since the initialization is sequential the other fn 4768 * wont be able to acknowledge the soft reset. 4769 * Issue a force soft reset to workaround this scenario. 4770 */ 4771 if (max_wait_time == 0) { 4772 /* Issue Force Soft Reset */ 4773 spin_lock_irqsave(&ha->hardware_lock, flags); 4774 writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 4775 readl(&ha->reg->ctrl_status); 4776 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4777 /* Wait until the firmware tells us the Soft Reset is done */ 4778 max_wait_time = SOFT_RESET_TOV; 4779 do { 4780 spin_lock_irqsave(&ha->hardware_lock, flags); 4781 ctrl_status = readw(&ha->reg->ctrl_status); 4782 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4783 4784 if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 4785 status = QLA_SUCCESS; 4786 break; 4787 } 4788 4789 msleep(1000); 4790 } while ((--max_wait_time)); 4791 } 4792 4793 return status; 4794 } 4795 4796 /** 4797 * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 4798 * @ha: Pointer to host adapter structure. 4799 * @res: returned scsi status 4800 * 4801 * This routine is called just prior to a HARD RESET to return all 4802 * outstanding commands back to the Operating System. 4803 * Caller should make sure that the following locks are released 4804 * before this calling routine: Hardware lock, and io_request_lock. 4805 **/ 4806 static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 4807 { 4808 struct srb *srb; 4809 int i; 4810 unsigned long flags; 4811 4812 spin_lock_irqsave(&ha->hardware_lock, flags); 4813 for (i = 0; i < ha->host->can_queue; i++) { 4814 srb = qla4xxx_del_from_active_array(ha, i); 4815 if (srb != NULL) { 4816 srb->cmd->result = res; 4817 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 4818 } 4819 } 4820 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4821 } 4822 4823 void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 4824 { 4825 clear_bit(AF_ONLINE, &ha->flags); 4826 4827 /* Disable the board */ 4828 ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 4829 4830 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 4831 qla4xxx_mark_all_devices_missing(ha); 4832 clear_bit(AF_INIT_DONE, &ha->flags); 4833 } 4834 4835 static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 4836 { 4837 struct iscsi_session *sess; 4838 struct ddb_entry *ddb_entry; 4839 4840 sess = cls_session->dd_data; 4841 ddb_entry = sess->dd_data; 4842 ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 4843 4844 if (ddb_entry->ddb_type == FLASH_DDB) 4845 iscsi_block_session(ddb_entry->sess); 4846 else 4847 iscsi_session_failure(cls_session->dd_data, 4848 ISCSI_ERR_CONN_FAILED); 4849 } 4850 4851 /** 4852 * qla4xxx_recover_adapter - recovers adapter after a fatal error 4853 * @ha: Pointer to host adapter structure. 4854 **/ 4855 static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 4856 { 4857 int status = QLA_ERROR; 4858 uint8_t reset_chip = 0; 4859 uint32_t dev_state; 4860 unsigned long wait; 4861 4862 /* Stall incoming I/O until we are done */ 4863 scsi_block_requests(ha->host); 4864 clear_bit(AF_ONLINE, &ha->flags); 4865 clear_bit(AF_LINK_UP, &ha->flags); 4866 4867 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 4868 4869 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 4870 4871 if ((is_qla8032(ha) || is_qla8042(ha)) && 4872 !test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4873 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 4874 __func__); 4875 /* disable pause frame for ISP83xx */ 4876 qla4_83xx_disable_pause(ha); 4877 } 4878 4879 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 4880 4881 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 4882 reset_chip = 1; 4883 4884 /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 4885 * do not reset adapter, jump to initialize_adapter */ 4886 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4887 status = QLA_SUCCESS; 4888 goto recover_ha_init_adapter; 4889 } 4890 4891 /* For the ISP-8xxx adapter, issue a stop_firmware if invoked 4892 * from eh_host_reset or ioctl module */ 4893 if (is_qla80XX(ha) && !reset_chip && 4894 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 4895 4896 DEBUG2(ql4_printk(KERN_INFO, ha, 4897 "scsi%ld: %s - Performing stop_firmware...\n", 4898 ha->host_no, __func__)); 4899 status = ha->isp_ops->reset_firmware(ha); 4900 if (status == QLA_SUCCESS) { 4901 ha->isp_ops->disable_intrs(ha); 4902 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4903 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4904 } else { 4905 /* If the stop_firmware fails then 4906 * reset the entire chip */ 4907 reset_chip = 1; 4908 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4909 set_bit(DPC_RESET_HA, &ha->dpc_flags); 4910 } 4911 } 4912 4913 /* Issue full chip reset if recovering from a catastrophic error, 4914 * or if stop_firmware fails for ISP-8xxx. 4915 * This is the default case for ISP-4xxx */ 4916 if (is_qla40XX(ha) || reset_chip) { 4917 if (is_qla40XX(ha)) 4918 goto chip_reset; 4919 4920 /* Check if 8XXX firmware is alive or not 4921 * We may have arrived here from NEED_RESET 4922 * detection only */ 4923 if (test_bit(AF_FW_RECOVERY, &ha->flags)) 4924 goto chip_reset; 4925 4926 wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 4927 while (time_before(jiffies, wait)) { 4928 if (qla4_8xxx_check_fw_alive(ha)) { 4929 qla4xxx_mailbox_premature_completion(ha); 4930 break; 4931 } 4932 4933 set_current_state(TASK_UNINTERRUPTIBLE); 4934 schedule_timeout(HZ); 4935 } 4936 chip_reset: 4937 if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 4938 qla4xxx_cmd_wait(ha); 4939 4940 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4941 DEBUG2(ql4_printk(KERN_INFO, ha, 4942 "scsi%ld: %s - Performing chip reset..\n", 4943 ha->host_no, __func__)); 4944 status = ha->isp_ops->reset_chip(ha); 4945 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 4946 } 4947 4948 /* Flush any pending ddb changed AENs */ 4949 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 4950 4951 recover_ha_init_adapter: 4952 /* Upon successful firmware/chip reset, re-initialize the adapter */ 4953 if (status == QLA_SUCCESS) { 4954 /* For ISP-4xxx, force function 1 to always initialize 4955 * before function 3 to prevent both funcions from 4956 * stepping on top of the other */ 4957 if (is_qla40XX(ha) && (ha->mac_index == 3)) 4958 ssleep(6); 4959 4960 /* NOTE: AF_ONLINE flag set upon successful completion of 4961 * qla4xxx_initialize_adapter */ 4962 status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 4963 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 4964 status = qla4_8xxx_check_init_adapter_retry(ha); 4965 if (status == QLA_ERROR) { 4966 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Don't retry recover adapter\n", 4967 ha->host_no, __func__); 4968 qla4xxx_dead_adapter_cleanup(ha); 4969 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4970 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 4971 clear_bit(DPC_RESET_HA_FW_CONTEXT, 4972 &ha->dpc_flags); 4973 goto exit_recover; 4974 } 4975 } 4976 } 4977 4978 /* Retry failed adapter initialization, if necessary 4979 * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 4980 * case to prevent ping-pong resets between functions */ 4981 if (!test_bit(AF_ONLINE, &ha->flags) && 4982 !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 4983 /* Adapter initialization failed, see if we can retry 4984 * resetting the ha. 4985 * Since we don't want to block the DPC for too long 4986 * with multiple resets in the same thread, 4987 * utilize DPC to retry */ 4988 if (is_qla80XX(ha)) { 4989 ha->isp_ops->idc_lock(ha); 4990 dev_state = qla4_8xxx_rd_direct(ha, 4991 QLA8XXX_CRB_DEV_STATE); 4992 ha->isp_ops->idc_unlock(ha); 4993 if (dev_state == QLA8XXX_DEV_FAILED) { 4994 ql4_printk(KERN_INFO, ha, "%s: don't retry " 4995 "recover adapter. H/W is in Failed " 4996 "state\n", __func__); 4997 qla4xxx_dead_adapter_cleanup(ha); 4998 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 4999 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5000 clear_bit(DPC_RESET_HA_FW_CONTEXT, 5001 &ha->dpc_flags); 5002 status = QLA_ERROR; 5003 5004 goto exit_recover; 5005 } 5006 } 5007 5008 if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 5009 ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 5010 DEBUG2(printk("scsi%ld: recover adapter - retrying " 5011 "(%d) more times\n", ha->host_no, 5012 ha->retry_reset_ha_cnt)); 5013 set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5014 status = QLA_ERROR; 5015 } else { 5016 if (ha->retry_reset_ha_cnt > 0) { 5017 /* Schedule another Reset HA--DPC will retry */ 5018 ha->retry_reset_ha_cnt--; 5019 DEBUG2(printk("scsi%ld: recover adapter - " 5020 "retry remaining %d\n", 5021 ha->host_no, 5022 ha->retry_reset_ha_cnt)); 5023 status = QLA_ERROR; 5024 } 5025 5026 if (ha->retry_reset_ha_cnt == 0) { 5027 /* Recover adapter retries have been exhausted. 5028 * Adapter DEAD */ 5029 DEBUG2(printk("scsi%ld: recover adapter " 5030 "failed - board disabled\n", 5031 ha->host_no)); 5032 qla4xxx_dead_adapter_cleanup(ha); 5033 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5034 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5035 clear_bit(DPC_RESET_HA_FW_CONTEXT, 5036 &ha->dpc_flags); 5037 status = QLA_ERROR; 5038 } 5039 } 5040 } else { 5041 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5042 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5043 clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 5044 } 5045 5046 exit_recover: 5047 ha->adapter_error_count++; 5048 5049 if (test_bit(AF_ONLINE, &ha->flags)) 5050 ha->isp_ops->enable_intrs(ha); 5051 5052 scsi_unblock_requests(ha->host); 5053 5054 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 5055 DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 5056 status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 5057 5058 return status; 5059 } 5060 5061 static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 5062 { 5063 struct iscsi_session *sess; 5064 struct ddb_entry *ddb_entry; 5065 struct scsi_qla_host *ha; 5066 5067 sess = cls_session->dd_data; 5068 ddb_entry = sess->dd_data; 5069 ha = ddb_entry->ha; 5070 if (!iscsi_is_session_online(cls_session)) { 5071 if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 5072 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5073 " unblock session\n", ha->host_no, __func__, 5074 ddb_entry->fw_ddb_index); 5075 iscsi_unblock_session(ddb_entry->sess); 5076 } else { 5077 /* Trigger relogin */ 5078 if (ddb_entry->ddb_type == FLASH_DDB) { 5079 if (!(test_bit(DF_RELOGIN, &ddb_entry->flags) || 5080 test_bit(DF_DISABLE_RELOGIN, 5081 &ddb_entry->flags))) 5082 qla4xxx_arm_relogin_timer(ddb_entry); 5083 } else 5084 iscsi_session_failure(cls_session->dd_data, 5085 ISCSI_ERR_CONN_FAILED); 5086 } 5087 } 5088 } 5089 5090 int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 5091 { 5092 struct iscsi_session *sess; 5093 struct ddb_entry *ddb_entry; 5094 struct scsi_qla_host *ha; 5095 5096 sess = cls_session->dd_data; 5097 ddb_entry = sess->dd_data; 5098 ha = ddb_entry->ha; 5099 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5100 " unblock session\n", ha->host_no, __func__, 5101 ddb_entry->fw_ddb_index); 5102 5103 iscsi_unblock_session(ddb_entry->sess); 5104 5105 /* Start scan target */ 5106 if (test_bit(AF_ONLINE, &ha->flags)) { 5107 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5108 " start scan\n", ha->host_no, __func__, 5109 ddb_entry->fw_ddb_index); 5110 queue_work(ddb_entry->sess->workq, &ddb_entry->sess->scan_work); 5111 } 5112 return QLA_SUCCESS; 5113 } 5114 5115 int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 5116 { 5117 struct iscsi_session *sess; 5118 struct ddb_entry *ddb_entry; 5119 struct scsi_qla_host *ha; 5120 int status = QLA_SUCCESS; 5121 5122 sess = cls_session->dd_data; 5123 ddb_entry = sess->dd_data; 5124 ha = ddb_entry->ha; 5125 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 5126 " unblock user space session\n", ha->host_no, __func__, 5127 ddb_entry->fw_ddb_index); 5128 5129 if (!iscsi_is_session_online(cls_session)) { 5130 iscsi_conn_start(ddb_entry->conn); 5131 iscsi_conn_login_event(ddb_entry->conn, 5132 ISCSI_CONN_STATE_LOGGED_IN); 5133 } else { 5134 ql4_printk(KERN_INFO, ha, 5135 "scsi%ld: %s: ddb[%d] session [%d] already logged in\n", 5136 ha->host_no, __func__, ddb_entry->fw_ddb_index, 5137 cls_session->sid); 5138 status = QLA_ERROR; 5139 } 5140 5141 return status; 5142 } 5143 5144 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 5145 { 5146 iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 5147 } 5148 5149 static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 5150 { 5151 uint16_t relogin_timer; 5152 struct iscsi_session *sess; 5153 struct ddb_entry *ddb_entry; 5154 struct scsi_qla_host *ha; 5155 5156 sess = cls_sess->dd_data; 5157 ddb_entry = sess->dd_data; 5158 ha = ddb_entry->ha; 5159 5160 relogin_timer = max(ddb_entry->default_relogin_timeout, 5161 (uint16_t)RELOGIN_TOV); 5162 atomic_set(&ddb_entry->relogin_timer, relogin_timer); 5163 5164 DEBUG2(ql4_printk(KERN_INFO, ha, 5165 "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 5166 ddb_entry->fw_ddb_index, relogin_timer)); 5167 5168 qla4xxx_login_flash_ddb(cls_sess); 5169 } 5170 5171 static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 5172 { 5173 struct iscsi_session *sess; 5174 struct ddb_entry *ddb_entry; 5175 struct scsi_qla_host *ha; 5176 5177 sess = cls_sess->dd_data; 5178 ddb_entry = sess->dd_data; 5179 ha = ddb_entry->ha; 5180 5181 if (!(ddb_entry->ddb_type == FLASH_DDB)) 5182 return; 5183 5184 if (test_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 5185 return; 5186 5187 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 5188 !iscsi_is_session_online(cls_sess)) { 5189 DEBUG2(ql4_printk(KERN_INFO, ha, 5190 "relogin issued\n")); 5191 qla4xxx_relogin_flash_ddb(cls_sess); 5192 } 5193 } 5194 5195 void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 5196 { 5197 if (ha->dpc_thread) 5198 queue_work(ha->dpc_thread, &ha->dpc_work); 5199 } 5200 5201 static struct qla4_work_evt * 5202 qla4xxx_alloc_work(struct scsi_qla_host *ha, uint32_t data_size, 5203 enum qla4_work_type type) 5204 { 5205 struct qla4_work_evt *e; 5206 uint32_t size = sizeof(struct qla4_work_evt) + data_size; 5207 5208 e = kzalloc(size, GFP_ATOMIC); 5209 if (!e) 5210 return NULL; 5211 5212 INIT_LIST_HEAD(&e->list); 5213 e->type = type; 5214 return e; 5215 } 5216 5217 static void qla4xxx_post_work(struct scsi_qla_host *ha, 5218 struct qla4_work_evt *e) 5219 { 5220 unsigned long flags; 5221 5222 spin_lock_irqsave(&ha->work_lock, flags); 5223 list_add_tail(&e->list, &ha->work_list); 5224 spin_unlock_irqrestore(&ha->work_lock, flags); 5225 qla4xxx_wake_dpc(ha); 5226 } 5227 5228 int qla4xxx_post_aen_work(struct scsi_qla_host *ha, 5229 enum iscsi_host_event_code aen_code, 5230 uint32_t data_size, uint8_t *data) 5231 { 5232 struct qla4_work_evt *e; 5233 5234 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_AEN); 5235 if (!e) 5236 return QLA_ERROR; 5237 5238 e->u.aen.code = aen_code; 5239 e->u.aen.data_size = data_size; 5240 memcpy(e->u.aen.data, data, data_size); 5241 5242 qla4xxx_post_work(ha, e); 5243 5244 return QLA_SUCCESS; 5245 } 5246 5247 int qla4xxx_post_ping_evt_work(struct scsi_qla_host *ha, 5248 uint32_t status, uint32_t pid, 5249 uint32_t data_size, uint8_t *data) 5250 { 5251 struct qla4_work_evt *e; 5252 5253 e = qla4xxx_alloc_work(ha, data_size, QLA4_EVENT_PING_STATUS); 5254 if (!e) 5255 return QLA_ERROR; 5256 5257 e->u.ping.status = status; 5258 e->u.ping.pid = pid; 5259 e->u.ping.data_size = data_size; 5260 memcpy(e->u.ping.data, data, data_size); 5261 5262 qla4xxx_post_work(ha, e); 5263 5264 return QLA_SUCCESS; 5265 } 5266 5267 static void qla4xxx_do_work(struct scsi_qla_host *ha) 5268 { 5269 struct qla4_work_evt *e, *tmp; 5270 unsigned long flags; 5271 LIST_HEAD(work); 5272 5273 spin_lock_irqsave(&ha->work_lock, flags); 5274 list_splice_init(&ha->work_list, &work); 5275 spin_unlock_irqrestore(&ha->work_lock, flags); 5276 5277 list_for_each_entry_safe(e, tmp, &work, list) { 5278 list_del_init(&e->list); 5279 5280 switch (e->type) { 5281 case QLA4_EVENT_AEN: 5282 iscsi_post_host_event(ha->host_no, 5283 &qla4xxx_iscsi_transport, 5284 e->u.aen.code, 5285 e->u.aen.data_size, 5286 e->u.aen.data); 5287 break; 5288 case QLA4_EVENT_PING_STATUS: 5289 iscsi_ping_comp_event(ha->host_no, 5290 &qla4xxx_iscsi_transport, 5291 e->u.ping.status, 5292 e->u.ping.pid, 5293 e->u.ping.data_size, 5294 e->u.ping.data); 5295 break; 5296 default: 5297 ql4_printk(KERN_WARNING, ha, "event type: 0x%x not " 5298 "supported", e->type); 5299 } 5300 kfree(e); 5301 } 5302 } 5303 5304 /** 5305 * qla4xxx_do_dpc - dpc routine 5306 * @work: Context to obtain pointer to host adapter structure. 5307 * 5308 * This routine is a task that is schedule by the interrupt handler 5309 * to perform the background processing for interrupts. We put it 5310 * on a task queue that is consumed whenever the scheduler runs; that's 5311 * so you can do anything (i.e. put the process to sleep etc). In fact, 5312 * the mid-level tries to sleep when it reaches the driver threshold 5313 * "host->can_queue". This can cause a panic if we were in our interrupt code. 5314 **/ 5315 static void qla4xxx_do_dpc(struct work_struct *work) 5316 { 5317 struct scsi_qla_host *ha = 5318 container_of(work, struct scsi_qla_host, dpc_work); 5319 int status = QLA_ERROR; 5320 5321 DEBUG2(ql4_printk(KERN_INFO, ha, 5322 "scsi%ld: %s: DPC handler waking up. flags = 0x%08lx, dpc_flags = 0x%08lx\n", 5323 ha->host_no, __func__, ha->flags, ha->dpc_flags)); 5324 5325 /* Initialization not yet finished. Don't do anything yet. */ 5326 if (!test_bit(AF_INIT_DONE, &ha->flags)) 5327 return; 5328 5329 if (test_bit(AF_EEH_BUSY, &ha->flags)) { 5330 DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 5331 ha->host_no, __func__, ha->flags)); 5332 return; 5333 } 5334 5335 /* post events to application */ 5336 qla4xxx_do_work(ha); 5337 5338 if (is_qla80XX(ha)) { 5339 if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 5340 if (is_qla8032(ha) || is_qla8042(ha)) { 5341 ql4_printk(KERN_INFO, ha, "%s: disabling pause transmit on port 0 & 1.\n", 5342 __func__); 5343 /* disable pause frame for ISP83xx */ 5344 qla4_83xx_disable_pause(ha); 5345 } 5346 5347 ha->isp_ops->idc_lock(ha); 5348 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 5349 QLA8XXX_DEV_FAILED); 5350 ha->isp_ops->idc_unlock(ha); 5351 ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 5352 qla4_8xxx_device_state_handler(ha); 5353 } 5354 5355 if (test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags)) { 5356 if (is_qla8042(ha)) { 5357 if (ha->idc_info.info2 & 5358 ENABLE_INTERNAL_LOOPBACK) { 5359 ql4_printk(KERN_INFO, ha, "%s: Disabling ACB\n", 5360 __func__); 5361 status = qla4_84xx_config_acb(ha, 5362 ACB_CONFIG_DISABLE); 5363 if (status != QLA_SUCCESS) { 5364 ql4_printk(KERN_INFO, ha, "%s: ACB config failed\n", 5365 __func__); 5366 } 5367 } 5368 } 5369 qla4_83xx_post_idc_ack(ha); 5370 clear_bit(DPC_POST_IDC_ACK, &ha->dpc_flags); 5371 } 5372 5373 if (is_qla8042(ha) && 5374 test_bit(DPC_RESTORE_ACB, &ha->dpc_flags)) { 5375 ql4_printk(KERN_INFO, ha, "%s: Restoring ACB\n", 5376 __func__); 5377 if (qla4_84xx_config_acb(ha, ACB_CONFIG_SET) != 5378 QLA_SUCCESS) { 5379 ql4_printk(KERN_INFO, ha, "%s: ACB config failed ", 5380 __func__); 5381 } 5382 clear_bit(DPC_RESTORE_ACB, &ha->dpc_flags); 5383 } 5384 5385 if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 5386 qla4_8xxx_need_qsnt_handler(ha); 5387 } 5388 } 5389 5390 if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 5391 (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 5392 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 5393 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 5394 if ((is_qla8022(ha) && ql4xdontresethba) || 5395 ((is_qla8032(ha) || is_qla8042(ha)) && 5396 qla4_83xx_idc_dontreset(ha))) { 5397 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5398 ha->host_no, __func__)); 5399 clear_bit(DPC_RESET_HA, &ha->dpc_flags); 5400 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5401 clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5402 goto dpc_post_reset_ha; 5403 } 5404 if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 5405 test_bit(DPC_RESET_HA, &ha->dpc_flags)) 5406 qla4xxx_recover_adapter(ha); 5407 5408 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 5409 uint8_t wait_time = RESET_INTR_TOV; 5410 5411 while ((readw(&ha->reg->ctrl_status) & 5412 (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 5413 if (--wait_time == 0) 5414 break; 5415 msleep(1000); 5416 } 5417 if (wait_time == 0) 5418 DEBUG2(printk("scsi%ld: %s: SR|FSR " 5419 "bit not cleared-- resetting\n", 5420 ha->host_no, __func__)); 5421 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 5422 if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 5423 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 5424 status = qla4xxx_recover_adapter(ha); 5425 } 5426 clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 5427 if (status == QLA_SUCCESS) 5428 ha->isp_ops->enable_intrs(ha); 5429 } 5430 } 5431 5432 dpc_post_reset_ha: 5433 /* ---- process AEN? --- */ 5434 if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 5435 qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 5436 5437 /* ---- Get DHCP IP Address? --- */ 5438 if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 5439 qla4xxx_get_dhcp_ip_address(ha); 5440 5441 /* ---- relogin device? --- */ 5442 if (adapter_up(ha) && 5443 test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 5444 iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 5445 } 5446 5447 /* ---- link change? --- */ 5448 if (!test_bit(AF_LOOPBACK, &ha->flags) && 5449 test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 5450 if (!test_bit(AF_LINK_UP, &ha->flags)) { 5451 /* ---- link down? --- */ 5452 qla4xxx_mark_all_devices_missing(ha); 5453 } else { 5454 /* ---- link up? --- * 5455 * F/W will auto login to all devices ONLY ONCE after 5456 * link up during driver initialization and runtime 5457 * fatal error recovery. Therefore, the driver must 5458 * manually relogin to devices when recovering from 5459 * connection failures, logouts, expired KATO, etc. */ 5460 if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 5461 qla4xxx_build_ddb_list(ha, ha->is_reset); 5462 iscsi_host_for_each_session(ha->host, 5463 qla4xxx_login_flash_ddb); 5464 } else 5465 qla4xxx_relogin_all_devices(ha); 5466 } 5467 } 5468 if (test_and_clear_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags)) { 5469 if (qla4xxx_sysfs_ddb_export(ha)) 5470 ql4_printk(KERN_ERR, ha, "%s: Error exporting ddb to sysfs\n", 5471 __func__); 5472 } 5473 } 5474 5475 /** 5476 * qla4xxx_free_adapter - release the adapter 5477 * @ha: pointer to adapter structure 5478 **/ 5479 static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 5480 { 5481 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 5482 5483 /* Turn-off interrupts on the card. */ 5484 ha->isp_ops->disable_intrs(ha); 5485 5486 if (is_qla40XX(ha)) { 5487 writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), 5488 &ha->reg->ctrl_status); 5489 readl(&ha->reg->ctrl_status); 5490 } else if (is_qla8022(ha)) { 5491 writel(0, &ha->qla4_82xx_reg->host_int); 5492 readl(&ha->qla4_82xx_reg->host_int); 5493 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5494 writel(0, &ha->qla4_83xx_reg->risc_intr); 5495 readl(&ha->qla4_83xx_reg->risc_intr); 5496 } 5497 5498 /* Remove timer thread, if present */ 5499 if (ha->timer_active) 5500 qla4xxx_stop_timer(ha); 5501 5502 /* Kill the kernel thread for this host */ 5503 if (ha->dpc_thread) 5504 destroy_workqueue(ha->dpc_thread); 5505 5506 /* Kill the kernel thread for this host */ 5507 if (ha->task_wq) 5508 destroy_workqueue(ha->task_wq); 5509 5510 /* Put firmware in known state */ 5511 ha->isp_ops->reset_firmware(ha); 5512 5513 if (is_qla80XX(ha)) { 5514 ha->isp_ops->idc_lock(ha); 5515 qla4_8xxx_clear_drv_active(ha); 5516 ha->isp_ops->idc_unlock(ha); 5517 } 5518 5519 /* Detach interrupts */ 5520 qla4xxx_free_irqs(ha); 5521 5522 /* free extra memory */ 5523 qla4xxx_mem_free(ha); 5524 } 5525 5526 int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 5527 { 5528 int status = 0; 5529 unsigned long mem_base, mem_len; 5530 struct pci_dev *pdev = ha->pdev; 5531 5532 status = pci_request_regions(pdev, DRIVER_NAME); 5533 if (status) { 5534 printk(KERN_WARNING 5535 "scsi(%ld) Failed to reserve PIO regions (%s) " 5536 "status=%d\n", ha->host_no, pci_name(pdev), status); 5537 goto iospace_error_exit; 5538 } 5539 5540 DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 5541 __func__, pdev->revision)); 5542 ha->revision_id = pdev->revision; 5543 5544 /* remap phys address */ 5545 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 5546 mem_len = pci_resource_len(pdev, 0); 5547 DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 5548 __func__, mem_base, mem_len)); 5549 5550 /* mapping of pcibase pointer */ 5551 ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 5552 if (!ha->nx_pcibase) { 5553 printk(KERN_ERR 5554 "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 5555 pci_release_regions(ha->pdev); 5556 goto iospace_error_exit; 5557 } 5558 5559 /* Mapping of IO base pointer, door bell read and write pointer */ 5560 5561 /* mapping of IO base pointer */ 5562 if (is_qla8022(ha)) { 5563 ha->qla4_82xx_reg = (struct device_reg_82xx __iomem *) 5564 ((uint8_t *)ha->nx_pcibase + 0xbc000 + 5565 (ha->pdev->devfn << 11)); 5566 ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 5567 QLA82XX_CAM_RAM_DB2); 5568 } else if (is_qla8032(ha) || is_qla8042(ha)) { 5569 ha->qla4_83xx_reg = (struct device_reg_83xx __iomem *) 5570 ((uint8_t *)ha->nx_pcibase); 5571 } 5572 5573 return 0; 5574 iospace_error_exit: 5575 return -ENOMEM; 5576 } 5577 5578 /*** 5579 * qla4xxx_iospace_config - maps registers 5580 * @ha: pointer to adapter structure 5581 * 5582 * This routines maps HBA's registers from the pci address space 5583 * into the kernel virtual address space for memory mapped i/o. 5584 **/ 5585 int qla4xxx_iospace_config(struct scsi_qla_host *ha) 5586 { 5587 unsigned long pio, pio_len, pio_flags; 5588 unsigned long mmio, mmio_len, mmio_flags; 5589 5590 pio = pci_resource_start(ha->pdev, 0); 5591 pio_len = pci_resource_len(ha->pdev, 0); 5592 pio_flags = pci_resource_flags(ha->pdev, 0); 5593 if (pio_flags & IORESOURCE_IO) { 5594 if (pio_len < MIN_IOBASE_LEN) { 5595 ql4_printk(KERN_WARNING, ha, 5596 "Invalid PCI I/O region size\n"); 5597 pio = 0; 5598 } 5599 } else { 5600 ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 5601 pio = 0; 5602 } 5603 5604 /* Use MMIO operations for all accesses. */ 5605 mmio = pci_resource_start(ha->pdev, 1); 5606 mmio_len = pci_resource_len(ha->pdev, 1); 5607 mmio_flags = pci_resource_flags(ha->pdev, 1); 5608 5609 if (!(mmio_flags & IORESOURCE_MEM)) { 5610 ql4_printk(KERN_ERR, ha, 5611 "region #0 not an MMIO resource, aborting\n"); 5612 5613 goto iospace_error_exit; 5614 } 5615 5616 if (mmio_len < MIN_IOBASE_LEN) { 5617 ql4_printk(KERN_ERR, ha, 5618 "Invalid PCI mem region size, aborting\n"); 5619 goto iospace_error_exit; 5620 } 5621 5622 if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 5623 ql4_printk(KERN_WARNING, ha, 5624 "Failed to reserve PIO/MMIO regions\n"); 5625 5626 goto iospace_error_exit; 5627 } 5628 5629 ha->pio_address = pio; 5630 ha->pio_length = pio_len; 5631 ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 5632 if (!ha->reg) { 5633 ql4_printk(KERN_ERR, ha, 5634 "cannot remap MMIO, aborting\n"); 5635 5636 goto iospace_error_exit; 5637 } 5638 5639 return 0; 5640 5641 iospace_error_exit: 5642 return -ENOMEM; 5643 } 5644 5645 static struct isp_operations qla4xxx_isp_ops = { 5646 .iospace_config = qla4xxx_iospace_config, 5647 .pci_config = qla4xxx_pci_config, 5648 .disable_intrs = qla4xxx_disable_intrs, 5649 .enable_intrs = qla4xxx_enable_intrs, 5650 .start_firmware = qla4xxx_start_firmware, 5651 .intr_handler = qla4xxx_intr_handler, 5652 .interrupt_service_routine = qla4xxx_interrupt_service_routine, 5653 .reset_chip = qla4xxx_soft_reset, 5654 .reset_firmware = qla4xxx_hw_reset, 5655 .queue_iocb = qla4xxx_queue_iocb, 5656 .complete_iocb = qla4xxx_complete_iocb, 5657 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5658 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5659 .get_sys_info = qla4xxx_get_sys_info, 5660 .queue_mailbox_command = qla4xxx_queue_mbox_cmd, 5661 .process_mailbox_interrupt = qla4xxx_process_mbox_intr, 5662 }; 5663 5664 static struct isp_operations qla4_82xx_isp_ops = { 5665 .iospace_config = qla4_8xxx_iospace_config, 5666 .pci_config = qla4_8xxx_pci_config, 5667 .disable_intrs = qla4_82xx_disable_intrs, 5668 .enable_intrs = qla4_82xx_enable_intrs, 5669 .start_firmware = qla4_8xxx_load_risc, 5670 .restart_firmware = qla4_82xx_try_start_fw, 5671 .intr_handler = qla4_82xx_intr_handler, 5672 .interrupt_service_routine = qla4_82xx_interrupt_service_routine, 5673 .need_reset = qla4_8xxx_need_reset, 5674 .reset_chip = qla4_82xx_isp_reset, 5675 .reset_firmware = qla4_8xxx_stop_firmware, 5676 .queue_iocb = qla4_82xx_queue_iocb, 5677 .complete_iocb = qla4_82xx_complete_iocb, 5678 .rd_shdw_req_q_out = qla4_82xx_rd_shdw_req_q_out, 5679 .rd_shdw_rsp_q_in = qla4_82xx_rd_shdw_rsp_q_in, 5680 .get_sys_info = qla4_8xxx_get_sys_info, 5681 .rd_reg_direct = qla4_82xx_rd_32, 5682 .wr_reg_direct = qla4_82xx_wr_32, 5683 .rd_reg_indirect = qla4_82xx_md_rd_32, 5684 .wr_reg_indirect = qla4_82xx_md_wr_32, 5685 .idc_lock = qla4_82xx_idc_lock, 5686 .idc_unlock = qla4_82xx_idc_unlock, 5687 .rom_lock_recovery = qla4_82xx_rom_lock_recovery, 5688 .queue_mailbox_command = qla4_82xx_queue_mbox_cmd, 5689 .process_mailbox_interrupt = qla4_82xx_process_mbox_intr, 5690 }; 5691 5692 static struct isp_operations qla4_83xx_isp_ops = { 5693 .iospace_config = qla4_8xxx_iospace_config, 5694 .pci_config = qla4_8xxx_pci_config, 5695 .disable_intrs = qla4_83xx_disable_intrs, 5696 .enable_intrs = qla4_83xx_enable_intrs, 5697 .start_firmware = qla4_8xxx_load_risc, 5698 .restart_firmware = qla4_83xx_start_firmware, 5699 .intr_handler = qla4_83xx_intr_handler, 5700 .interrupt_service_routine = qla4_83xx_interrupt_service_routine, 5701 .need_reset = qla4_8xxx_need_reset, 5702 .reset_chip = qla4_83xx_isp_reset, 5703 .reset_firmware = qla4_8xxx_stop_firmware, 5704 .queue_iocb = qla4_83xx_queue_iocb, 5705 .complete_iocb = qla4_83xx_complete_iocb, 5706 .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 5707 .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 5708 .get_sys_info = qla4_8xxx_get_sys_info, 5709 .rd_reg_direct = qla4_83xx_rd_reg, 5710 .wr_reg_direct = qla4_83xx_wr_reg, 5711 .rd_reg_indirect = qla4_83xx_rd_reg_indirect, 5712 .wr_reg_indirect = qla4_83xx_wr_reg_indirect, 5713 .idc_lock = qla4_83xx_drv_lock, 5714 .idc_unlock = qla4_83xx_drv_unlock, 5715 .rom_lock_recovery = qla4_83xx_rom_lock_recovery, 5716 .queue_mailbox_command = qla4_83xx_queue_mbox_cmd, 5717 .process_mailbox_interrupt = qla4_83xx_process_mbox_intr, 5718 }; 5719 5720 uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5721 { 5722 return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 5723 } 5724 5725 uint16_t qla4_82xx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 5726 { 5727 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->req_q_out)); 5728 } 5729 5730 uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5731 { 5732 return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 5733 } 5734 5735 uint16_t qla4_82xx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 5736 { 5737 return (uint16_t)le32_to_cpu(readl(&ha->qla4_82xx_reg->rsp_q_in)); 5738 } 5739 5740 static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 5741 { 5742 struct scsi_qla_host *ha = data; 5743 char *str = buf; 5744 int rc; 5745 5746 switch (type) { 5747 case ISCSI_BOOT_ETH_FLAGS: 5748 rc = sprintf(str, "%d\n", (char)SYSFS_FLAG_FW_SEL_BOOT); 5749 break; 5750 case ISCSI_BOOT_ETH_INDEX: 5751 rc = sprintf(str, "0\n"); 5752 break; 5753 case ISCSI_BOOT_ETH_MAC: 5754 rc = sysfs_format_mac(str, ha->my_mac, 5755 MAC_ADDR_LEN); 5756 break; 5757 default: 5758 rc = -ENOSYS; 5759 break; 5760 } 5761 return rc; 5762 } 5763 5764 static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 5765 { 5766 int rc; 5767 5768 switch (type) { 5769 case ISCSI_BOOT_ETH_FLAGS: 5770 case ISCSI_BOOT_ETH_MAC: 5771 case ISCSI_BOOT_ETH_INDEX: 5772 rc = S_IRUGO; 5773 break; 5774 default: 5775 rc = 0; 5776 break; 5777 } 5778 return rc; 5779 } 5780 5781 static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 5782 { 5783 struct scsi_qla_host *ha = data; 5784 char *str = buf; 5785 int rc; 5786 5787 switch (type) { 5788 case ISCSI_BOOT_INI_INITIATOR_NAME: 5789 rc = sprintf(str, "%s\n", ha->name_string); 5790 break; 5791 default: 5792 rc = -ENOSYS; 5793 break; 5794 } 5795 return rc; 5796 } 5797 5798 static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 5799 { 5800 int rc; 5801 5802 switch (type) { 5803 case ISCSI_BOOT_INI_INITIATOR_NAME: 5804 rc = S_IRUGO; 5805 break; 5806 default: 5807 rc = 0; 5808 break; 5809 } 5810 return rc; 5811 } 5812 5813 static ssize_t 5814 qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 5815 char *buf) 5816 { 5817 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 5818 char *str = buf; 5819 int rc; 5820 5821 switch (type) { 5822 case ISCSI_BOOT_TGT_NAME: 5823 rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 5824 break; 5825 case ISCSI_BOOT_TGT_IP_ADDR: 5826 if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 5827 rc = sprintf(buf, "%pI4\n", 5828 &boot_conn->dest_ipaddr.ip_address); 5829 else 5830 rc = sprintf(str, "%pI6\n", 5831 &boot_conn->dest_ipaddr.ip_address); 5832 break; 5833 case ISCSI_BOOT_TGT_PORT: 5834 rc = sprintf(str, "%d\n", boot_conn->dest_port); 5835 break; 5836 case ISCSI_BOOT_TGT_CHAP_NAME: 5837 rc = sprintf(str, "%.*s\n", 5838 boot_conn->chap.target_chap_name_length, 5839 (char *)&boot_conn->chap.target_chap_name); 5840 break; 5841 case ISCSI_BOOT_TGT_CHAP_SECRET: 5842 rc = sprintf(str, "%.*s\n", 5843 boot_conn->chap.target_secret_length, 5844 (char *)&boot_conn->chap.target_secret); 5845 break; 5846 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5847 rc = sprintf(str, "%.*s\n", 5848 boot_conn->chap.intr_chap_name_length, 5849 (char *)&boot_conn->chap.intr_chap_name); 5850 break; 5851 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5852 rc = sprintf(str, "%.*s\n", 5853 boot_conn->chap.intr_secret_length, 5854 (char *)&boot_conn->chap.intr_secret); 5855 break; 5856 case ISCSI_BOOT_TGT_FLAGS: 5857 rc = sprintf(str, "%d\n", (char)SYSFS_FLAG_FW_SEL_BOOT); 5858 break; 5859 case ISCSI_BOOT_TGT_NIC_ASSOC: 5860 rc = sprintf(str, "0\n"); 5861 break; 5862 default: 5863 rc = -ENOSYS; 5864 break; 5865 } 5866 return rc; 5867 } 5868 5869 static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 5870 { 5871 struct scsi_qla_host *ha = data; 5872 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 5873 5874 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5875 } 5876 5877 static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 5878 { 5879 struct scsi_qla_host *ha = data; 5880 struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 5881 5882 return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 5883 } 5884 5885 static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 5886 { 5887 int rc; 5888 5889 switch (type) { 5890 case ISCSI_BOOT_TGT_NAME: 5891 case ISCSI_BOOT_TGT_IP_ADDR: 5892 case ISCSI_BOOT_TGT_PORT: 5893 case ISCSI_BOOT_TGT_CHAP_NAME: 5894 case ISCSI_BOOT_TGT_CHAP_SECRET: 5895 case ISCSI_BOOT_TGT_REV_CHAP_NAME: 5896 case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 5897 case ISCSI_BOOT_TGT_NIC_ASSOC: 5898 case ISCSI_BOOT_TGT_FLAGS: 5899 rc = S_IRUGO; 5900 break; 5901 default: 5902 rc = 0; 5903 break; 5904 } 5905 return rc; 5906 } 5907 5908 static void qla4xxx_boot_release(void *data) 5909 { 5910 struct scsi_qla_host *ha = data; 5911 5912 scsi_host_put(ha->host); 5913 } 5914 5915 static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 5916 { 5917 dma_addr_t buf_dma; 5918 uint32_t addr, pri_addr, sec_addr; 5919 uint32_t offset; 5920 uint16_t func_num; 5921 uint8_t val; 5922 uint8_t *buf = NULL; 5923 size_t size = 13 * sizeof(uint8_t); 5924 int ret = QLA_SUCCESS; 5925 5926 func_num = PCI_FUNC(ha->pdev->devfn); 5927 5928 ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 5929 __func__, ha->pdev->device, func_num); 5930 5931 if (is_qla40XX(ha)) { 5932 if (func_num == 1) { 5933 addr = NVRAM_PORT0_BOOT_MODE; 5934 pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 5935 sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 5936 } else if (func_num == 3) { 5937 addr = NVRAM_PORT1_BOOT_MODE; 5938 pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 5939 sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 5940 } else { 5941 ret = QLA_ERROR; 5942 goto exit_boot_info; 5943 } 5944 5945 /* Check Boot Mode */ 5946 val = rd_nvram_byte(ha, addr); 5947 if (!(val & 0x07)) { 5948 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Adapter boot " 5949 "options : 0x%x\n", __func__, val)); 5950 ret = QLA_ERROR; 5951 goto exit_boot_info; 5952 } 5953 5954 /* get primary valid target index */ 5955 val = rd_nvram_byte(ha, pri_addr); 5956 if (val & BIT_7) 5957 ddb_index[0] = (val & 0x7f); 5958 5959 /* get secondary valid target index */ 5960 val = rd_nvram_byte(ha, sec_addr); 5961 if (val & BIT_7) 5962 ddb_index[1] = (val & 0x7f); 5963 goto exit_boot_info; 5964 } else if (is_qla80XX(ha)) { 5965 buf = dma_alloc_coherent(&ha->pdev->dev, size, 5966 &buf_dma, GFP_KERNEL); 5967 if (!buf) { 5968 DEBUG2(ql4_printk(KERN_ERR, ha, 5969 "%s: Unable to allocate dma buffer\n", 5970 __func__)); 5971 ret = QLA_ERROR; 5972 goto exit_boot_info; 5973 } 5974 5975 if (ha->port_num == 0) 5976 offset = BOOT_PARAM_OFFSET_PORT0; 5977 else if (ha->port_num == 1) 5978 offset = BOOT_PARAM_OFFSET_PORT1; 5979 else { 5980 ret = QLA_ERROR; 5981 goto exit_boot_info_free; 5982 } 5983 addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 5984 offset; 5985 if (qla4xxx_get_flash(ha, buf_dma, addr, 5986 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 5987 DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 5988 " failed\n", ha->host_no, __func__)); 5989 ret = QLA_ERROR; 5990 goto exit_boot_info_free; 5991 } 5992 /* Check Boot Mode */ 5993 if (!(buf[1] & 0x07)) { 5994 DEBUG2(ql4_printk(KERN_INFO, ha, "Firmware boot options" 5995 " : 0x%x\n", buf[1])); 5996 ret = QLA_ERROR; 5997 goto exit_boot_info_free; 5998 } 5999 6000 /* get primary valid target index */ 6001 if (buf[2] & BIT_7) 6002 ddb_index[0] = buf[2] & 0x7f; 6003 6004 /* get secondary valid target index */ 6005 if (buf[11] & BIT_7) 6006 ddb_index[1] = buf[11] & 0x7f; 6007 } else { 6008 ret = QLA_ERROR; 6009 goto exit_boot_info; 6010 } 6011 6012 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 6013 " target ID %d\n", __func__, ddb_index[0], 6014 ddb_index[1])); 6015 6016 exit_boot_info_free: 6017 dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 6018 exit_boot_info: 6019 ha->pri_ddb_idx = ddb_index[0]; 6020 ha->sec_ddb_idx = ddb_index[1]; 6021 return ret; 6022 } 6023 6024 /** 6025 * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 6026 * @ha: pointer to adapter structure 6027 * @username: CHAP username to be returned 6028 * @password: CHAP password to be returned 6029 * 6030 * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 6031 * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 6032 * So from the CHAP cache find the first BIDI CHAP entry and set it 6033 * to the boot record in sysfs. 6034 **/ 6035 static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 6036 char *password) 6037 { 6038 int i, ret = -EINVAL; 6039 int max_chap_entries = 0; 6040 struct ql4_chap_table *chap_table; 6041 6042 if (is_qla80XX(ha)) 6043 max_chap_entries = (ha->hw.flt_chap_size / 2) / 6044 sizeof(struct ql4_chap_table); 6045 else 6046 max_chap_entries = MAX_CHAP_ENTRIES_40XX; 6047 6048 if (!ha->chap_list) { 6049 ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 6050 return ret; 6051 } 6052 6053 mutex_lock(&ha->chap_sem); 6054 for (i = 0; i < max_chap_entries; i++) { 6055 chap_table = (struct ql4_chap_table *)ha->chap_list + i; 6056 if (chap_table->cookie != 6057 cpu_to_le16(CHAP_VALID_COOKIE)) { 6058 continue; 6059 } 6060 6061 if (chap_table->flags & BIT_7) /* local */ 6062 continue; 6063 6064 if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 6065 continue; 6066 6067 strscpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 6068 strscpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 6069 ret = 0; 6070 break; 6071 } 6072 mutex_unlock(&ha->chap_sem); 6073 6074 return ret; 6075 } 6076 6077 6078 static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 6079 struct ql4_boot_session_info *boot_sess, 6080 uint16_t ddb_index) 6081 { 6082 struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 6083 struct dev_db_entry *fw_ddb_entry; 6084 dma_addr_t fw_ddb_entry_dma; 6085 uint16_t idx; 6086 uint16_t options; 6087 int ret = QLA_SUCCESS; 6088 6089 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6090 &fw_ddb_entry_dma, GFP_KERNEL); 6091 if (!fw_ddb_entry) { 6092 DEBUG2(ql4_printk(KERN_ERR, ha, 6093 "%s: Unable to allocate dma buffer.\n", 6094 __func__)); 6095 ret = QLA_ERROR; 6096 return ret; 6097 } 6098 6099 if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 6100 fw_ddb_entry_dma, ddb_index)) { 6101 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: No Flash DDB found at " 6102 "index [%d]\n", __func__, ddb_index)); 6103 ret = QLA_ERROR; 6104 goto exit_boot_target; 6105 } 6106 6107 /* Update target name and IP from DDB */ 6108 memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 6109 min(sizeof(boot_sess->target_name), 6110 sizeof(fw_ddb_entry->iscsi_name))); 6111 6112 options = le16_to_cpu(fw_ddb_entry->options); 6113 if (options & DDB_OPT_IPV6_DEVICE) { 6114 memcpy(&boot_conn->dest_ipaddr.ip_address, 6115 &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 6116 } else { 6117 boot_conn->dest_ipaddr.ip_type = 0x1; 6118 memcpy(&boot_conn->dest_ipaddr.ip_address, 6119 &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 6120 } 6121 6122 boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 6123 6124 /* update chap information */ 6125 idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 6126 6127 if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6128 6129 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 6130 6131 ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 6132 target_chap_name, 6133 (char *)&boot_conn->chap.target_secret, 6134 idx); 6135 if (ret) { 6136 ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 6137 ret = QLA_ERROR; 6138 goto exit_boot_target; 6139 } 6140 6141 boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6142 boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6143 } 6144 6145 if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 6146 6147 DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 6148 6149 ret = qla4xxx_get_bidi_chap(ha, 6150 (char *)&boot_conn->chap.intr_chap_name, 6151 (char *)&boot_conn->chap.intr_secret); 6152 6153 if (ret) { 6154 ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 6155 ret = QLA_ERROR; 6156 goto exit_boot_target; 6157 } 6158 6159 boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 6160 boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 6161 } 6162 6163 exit_boot_target: 6164 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 6165 fw_ddb_entry, fw_ddb_entry_dma); 6166 return ret; 6167 } 6168 6169 static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 6170 { 6171 uint16_t ddb_index[2]; 6172 int ret = QLA_ERROR; 6173 int rval; 6174 6175 memset(ddb_index, 0, sizeof(ddb_index)); 6176 ddb_index[0] = 0xffff; 6177 ddb_index[1] = 0xffff; 6178 ret = get_fw_boot_info(ha, ddb_index); 6179 if (ret != QLA_SUCCESS) { 6180 DEBUG2(ql4_printk(KERN_INFO, ha, 6181 "%s: No boot target configured.\n", __func__)); 6182 return ret; 6183 } 6184 6185 if (ql4xdisablesysfsboot) 6186 return QLA_SUCCESS; 6187 6188 if (ddb_index[0] == 0xffff) 6189 goto sec_target; 6190 6191 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 6192 ddb_index[0]); 6193 if (rval != QLA_SUCCESS) { 6194 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary boot target not " 6195 "configured\n", __func__)); 6196 } else 6197 ret = QLA_SUCCESS; 6198 6199 sec_target: 6200 if (ddb_index[1] == 0xffff) 6201 goto exit_get_boot_info; 6202 6203 rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 6204 ddb_index[1]); 6205 if (rval != QLA_SUCCESS) { 6206 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Secondary boot target not" 6207 " configured\n", __func__)); 6208 } else 6209 ret = QLA_SUCCESS; 6210 6211 exit_get_boot_info: 6212 return ret; 6213 } 6214 6215 static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 6216 { 6217 struct iscsi_boot_kobj *boot_kobj; 6218 6219 if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 6220 return QLA_ERROR; 6221 6222 if (ql4xdisablesysfsboot) { 6223 ql4_printk(KERN_INFO, ha, 6224 "%s: syfsboot disabled - driver will trigger login " 6225 "and publish session for discovery .\n", __func__); 6226 return QLA_SUCCESS; 6227 } 6228 6229 6230 ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 6231 if (!ha->boot_kset) 6232 goto kset_free; 6233 6234 if (!scsi_host_get(ha->host)) 6235 goto kset_free; 6236 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 6237 qla4xxx_show_boot_tgt_pri_info, 6238 qla4xxx_tgt_get_attr_visibility, 6239 qla4xxx_boot_release); 6240 if (!boot_kobj) 6241 goto put_host; 6242 6243 if (!scsi_host_get(ha->host)) 6244 goto kset_free; 6245 boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 6246 qla4xxx_show_boot_tgt_sec_info, 6247 qla4xxx_tgt_get_attr_visibility, 6248 qla4xxx_boot_release); 6249 if (!boot_kobj) 6250 goto put_host; 6251 6252 if (!scsi_host_get(ha->host)) 6253 goto kset_free; 6254 boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 6255 qla4xxx_show_boot_ini_info, 6256 qla4xxx_ini_get_attr_visibility, 6257 qla4xxx_boot_release); 6258 if (!boot_kobj) 6259 goto put_host; 6260 6261 if (!scsi_host_get(ha->host)) 6262 goto kset_free; 6263 boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 6264 qla4xxx_show_boot_eth_info, 6265 qla4xxx_eth_get_attr_visibility, 6266 qla4xxx_boot_release); 6267 if (!boot_kobj) 6268 goto put_host; 6269 6270 return QLA_SUCCESS; 6271 6272 put_host: 6273 scsi_host_put(ha->host); 6274 kset_free: 6275 iscsi_boot_destroy_kset(ha->boot_kset); 6276 return -ENOMEM; 6277 } 6278 6279 6280 static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 6281 struct ql4_tuple_ddb *tddb) 6282 { 6283 struct iscsi_cls_session *cls_sess; 6284 struct iscsi_cls_conn *cls_conn; 6285 struct iscsi_session *sess; 6286 struct iscsi_conn *conn; 6287 6288 DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 6289 cls_sess = ddb_entry->sess; 6290 sess = cls_sess->dd_data; 6291 cls_conn = ddb_entry->conn; 6292 conn = cls_conn->dd_data; 6293 6294 tddb->tpgt = sess->tpgt; 6295 tddb->port = conn->persistent_port; 6296 strscpy(tddb->iscsi_name, sess->targetname, sizeof(tddb->iscsi_name)); 6297 strscpy(tddb->ip_addr, conn->persistent_address, sizeof(tddb->ip_addr)); 6298 } 6299 6300 static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 6301 struct ql4_tuple_ddb *tddb, 6302 uint8_t *flash_isid) 6303 { 6304 uint16_t options = 0; 6305 6306 tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 6307 memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 6308 min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 6309 6310 options = le16_to_cpu(fw_ddb_entry->options); 6311 if (options & DDB_OPT_IPV6_DEVICE) 6312 sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 6313 else 6314 sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 6315 6316 tddb->port = le16_to_cpu(fw_ddb_entry->port); 6317 6318 if (flash_isid == NULL) 6319 memcpy(&tddb->isid[0], &fw_ddb_entry->isid[0], 6320 sizeof(tddb->isid)); 6321 else 6322 memcpy(&tddb->isid[0], &flash_isid[0], sizeof(tddb->isid)); 6323 } 6324 6325 static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 6326 struct ql4_tuple_ddb *old_tddb, 6327 struct ql4_tuple_ddb *new_tddb, 6328 uint8_t is_isid_compare) 6329 { 6330 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6331 return QLA_ERROR; 6332 6333 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 6334 return QLA_ERROR; 6335 6336 if (old_tddb->port != new_tddb->port) 6337 return QLA_ERROR; 6338 6339 /* For multi sessions, driver generates the ISID, so do not compare 6340 * ISID in reset path since it would be a comparison between the 6341 * driver generated ISID and firmware generated ISID. This could 6342 * lead to adding duplicated DDBs in the list as driver generated 6343 * ISID would not match firmware generated ISID. 6344 */ 6345 if (is_isid_compare) { 6346 DEBUG2(ql4_printk(KERN_INFO, ha, 6347 "%s: old ISID [%pmR] New ISID [%pmR]\n", 6348 __func__, old_tddb->isid, new_tddb->isid)); 6349 6350 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6351 sizeof(old_tddb->isid))) 6352 return QLA_ERROR; 6353 } 6354 6355 DEBUG2(ql4_printk(KERN_INFO, ha, 6356 "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 6357 old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 6358 old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 6359 new_tddb->ip_addr, new_tddb->iscsi_name)); 6360 6361 return QLA_SUCCESS; 6362 } 6363 6364 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 6365 struct dev_db_entry *fw_ddb_entry, 6366 uint32_t *index) 6367 { 6368 struct ddb_entry *ddb_entry; 6369 struct ql4_tuple_ddb *fw_tddb = NULL; 6370 struct ql4_tuple_ddb *tmp_tddb = NULL; 6371 int idx; 6372 int ret = QLA_ERROR; 6373 6374 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6375 if (!fw_tddb) { 6376 DEBUG2(ql4_printk(KERN_WARNING, ha, 6377 "Memory Allocation failed.\n")); 6378 ret = QLA_SUCCESS; 6379 goto exit_check; 6380 } 6381 6382 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6383 if (!tmp_tddb) { 6384 DEBUG2(ql4_printk(KERN_WARNING, ha, 6385 "Memory Allocation failed.\n")); 6386 ret = QLA_SUCCESS; 6387 goto exit_check; 6388 } 6389 6390 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6391 6392 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 6393 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 6394 if (ddb_entry == NULL) 6395 continue; 6396 6397 qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 6398 if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) { 6399 ret = QLA_SUCCESS; /* found */ 6400 if (index != NULL) 6401 *index = idx; 6402 goto exit_check; 6403 } 6404 } 6405 6406 exit_check: 6407 vfree(fw_tddb); 6408 vfree(tmp_tddb); 6409 return ret; 6410 } 6411 6412 /** 6413 * qla4xxx_check_existing_isid - check if target with same isid exist 6414 * in target list 6415 * @list_nt: list of target 6416 * @isid: isid to check 6417 * 6418 * This routine return QLA_SUCCESS if target with same isid exist 6419 **/ 6420 static int qla4xxx_check_existing_isid(struct list_head *list_nt, uint8_t *isid) 6421 { 6422 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6423 struct dev_db_entry *fw_ddb_entry; 6424 6425 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6426 fw_ddb_entry = &nt_ddb_idx->fw_ddb; 6427 6428 if (memcmp(&fw_ddb_entry->isid[0], &isid[0], 6429 sizeof(nt_ddb_idx->fw_ddb.isid)) == 0) { 6430 return QLA_SUCCESS; 6431 } 6432 } 6433 return QLA_ERROR; 6434 } 6435 6436 /** 6437 * qla4xxx_update_isid - compare ddbs and updated isid 6438 * @ha: Pointer to host adapter structure. 6439 * @list_nt: list of nt target 6440 * @fw_ddb_entry: firmware ddb entry 6441 * 6442 * This routine update isid if ddbs have same iqn, same isid and 6443 * different IP addr. 6444 * Return QLA_SUCCESS if isid is updated. 6445 **/ 6446 static int qla4xxx_update_isid(struct scsi_qla_host *ha, 6447 struct list_head *list_nt, 6448 struct dev_db_entry *fw_ddb_entry) 6449 { 6450 uint8_t base_value, i; 6451 6452 base_value = fw_ddb_entry->isid[1] & 0x1f; 6453 for (i = 0; i < 8; i++) { 6454 fw_ddb_entry->isid[1] = (base_value | (i << 5)); 6455 if (qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6456 break; 6457 } 6458 6459 if (!qla4xxx_check_existing_isid(list_nt, fw_ddb_entry->isid)) 6460 return QLA_ERROR; 6461 6462 return QLA_SUCCESS; 6463 } 6464 6465 /** 6466 * qla4xxx_should_update_isid - check if isid need to update 6467 * @ha: Pointer to host adapter structure. 6468 * @old_tddb: ddb tuple 6469 * @new_tddb: ddb tuple 6470 * 6471 * Return QLA_SUCCESS if different IP, different PORT, same iqn, 6472 * same isid 6473 **/ 6474 static int qla4xxx_should_update_isid(struct scsi_qla_host *ha, 6475 struct ql4_tuple_ddb *old_tddb, 6476 struct ql4_tuple_ddb *new_tddb) 6477 { 6478 if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr) == 0) { 6479 /* Same ip */ 6480 if (old_tddb->port == new_tddb->port) 6481 return QLA_ERROR; 6482 } 6483 6484 if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 6485 /* different iqn */ 6486 return QLA_ERROR; 6487 6488 if (memcmp(&old_tddb->isid[0], &new_tddb->isid[0], 6489 sizeof(old_tddb->isid))) 6490 /* different isid */ 6491 return QLA_ERROR; 6492 6493 return QLA_SUCCESS; 6494 } 6495 6496 /** 6497 * qla4xxx_is_flash_ddb_exists - check if fw_ddb_entry already exists in list_nt 6498 * @ha: Pointer to host adapter structure. 6499 * @list_nt: list of nt target. 6500 * @fw_ddb_entry: firmware ddb entry. 6501 * 6502 * This routine check if fw_ddb_entry already exists in list_nt to avoid 6503 * duplicate ddb in list_nt. 6504 * Return QLA_SUCCESS if duplicate ddb exit in list_nl. 6505 * Note: This function also update isid of DDB if required. 6506 **/ 6507 6508 static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 6509 struct list_head *list_nt, 6510 struct dev_db_entry *fw_ddb_entry) 6511 { 6512 struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 6513 struct ql4_tuple_ddb *fw_tddb = NULL; 6514 struct ql4_tuple_ddb *tmp_tddb = NULL; 6515 int rval, ret = QLA_ERROR; 6516 6517 fw_tddb = vzalloc(sizeof(*fw_tddb)); 6518 if (!fw_tddb) { 6519 DEBUG2(ql4_printk(KERN_WARNING, ha, 6520 "Memory Allocation failed.\n")); 6521 ret = QLA_SUCCESS; 6522 goto exit_check; 6523 } 6524 6525 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 6526 if (!tmp_tddb) { 6527 DEBUG2(ql4_printk(KERN_WARNING, ha, 6528 "Memory Allocation failed.\n")); 6529 ret = QLA_SUCCESS; 6530 goto exit_check; 6531 } 6532 6533 qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb, NULL); 6534 6535 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6536 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, 6537 nt_ddb_idx->flash_isid); 6538 ret = qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, true); 6539 /* found duplicate ddb */ 6540 if (ret == QLA_SUCCESS) 6541 goto exit_check; 6542 } 6543 6544 list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 6545 qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb, NULL); 6546 6547 ret = qla4xxx_should_update_isid(ha, tmp_tddb, fw_tddb); 6548 if (ret == QLA_SUCCESS) { 6549 rval = qla4xxx_update_isid(ha, list_nt, fw_ddb_entry); 6550 if (rval == QLA_SUCCESS) 6551 ret = QLA_ERROR; 6552 else 6553 ret = QLA_SUCCESS; 6554 6555 goto exit_check; 6556 } 6557 } 6558 6559 exit_check: 6560 vfree(fw_tddb); 6561 vfree(tmp_tddb); 6562 return ret; 6563 } 6564 6565 static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 6566 { 6567 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6568 6569 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6570 list_del_init(&ddb_idx->list); 6571 vfree(ddb_idx); 6572 } 6573 } 6574 6575 static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 6576 struct dev_db_entry *fw_ddb_entry) 6577 { 6578 struct iscsi_endpoint *ep; 6579 struct sockaddr_in *addr; 6580 struct sockaddr_in6 *addr6; 6581 struct sockaddr *t_addr; 6582 struct sockaddr_storage *dst_addr; 6583 char *ip; 6584 6585 /* TODO: need to destroy on unload iscsi_endpoint*/ 6586 dst_addr = vmalloc(sizeof(*dst_addr)); 6587 if (!dst_addr) 6588 return NULL; 6589 6590 if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 6591 t_addr = (struct sockaddr *)dst_addr; 6592 t_addr->sa_family = AF_INET6; 6593 addr6 = (struct sockaddr_in6 *)dst_addr; 6594 ip = (char *)&addr6->sin6_addr; 6595 memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 6596 addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6597 6598 } else { 6599 t_addr = (struct sockaddr *)dst_addr; 6600 t_addr->sa_family = AF_INET; 6601 addr = (struct sockaddr_in *)dst_addr; 6602 ip = (char *)&addr->sin_addr; 6603 memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 6604 addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 6605 } 6606 6607 ep = qla4xxx_ep_connect(ha->host, (struct sockaddr *)dst_addr, 0); 6608 vfree(dst_addr); 6609 if (IS_ERR(ep)) 6610 return NULL; 6611 return ep; 6612 } 6613 6614 static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 6615 { 6616 if (ql4xdisablesysfsboot) 6617 return QLA_SUCCESS; 6618 if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 6619 return QLA_ERROR; 6620 return QLA_SUCCESS; 6621 } 6622 6623 static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 6624 struct ddb_entry *ddb_entry, 6625 uint16_t idx) 6626 { 6627 uint16_t def_timeout; 6628 6629 ddb_entry->ddb_type = FLASH_DDB; 6630 ddb_entry->fw_ddb_index = INVALID_ENTRY; 6631 ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 6632 ddb_entry->ha = ha; 6633 ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 6634 ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 6635 ddb_entry->chap_tbl_idx = INVALID_ENTRY; 6636 6637 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 6638 atomic_set(&ddb_entry->relogin_timer, 0); 6639 atomic_set(&ddb_entry->relogin_retry_count, 0); 6640 def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 6641 ddb_entry->default_relogin_timeout = 6642 (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 6643 def_timeout : LOGIN_TOV; 6644 ddb_entry->default_time2wait = 6645 le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 6646 6647 if (ql4xdisablesysfsboot && 6648 (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)) 6649 set_bit(DF_BOOT_TGT, &ddb_entry->flags); 6650 } 6651 6652 static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 6653 { 6654 uint32_t idx = 0; 6655 uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 6656 uint32_t sts[MBOX_REG_COUNT]; 6657 uint32_t ip_state; 6658 unsigned long wtime; 6659 int ret; 6660 6661 wtime = jiffies + (HZ * IP_CONFIG_TOV); 6662 do { 6663 for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 6664 if (ip_idx[idx] == -1) 6665 continue; 6666 6667 ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 6668 6669 if (ret == QLA_ERROR) { 6670 ip_idx[idx] = -1; 6671 continue; 6672 } 6673 6674 ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 6675 6676 DEBUG2(ql4_printk(KERN_INFO, ha, 6677 "Waiting for IP state for idx = %d, state = 0x%x\n", 6678 ip_idx[idx], ip_state)); 6679 if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 6680 ip_state == IP_ADDRSTATE_INVALID || 6681 ip_state == IP_ADDRSTATE_PREFERRED || 6682 ip_state == IP_ADDRSTATE_DEPRICATED || 6683 ip_state == IP_ADDRSTATE_DISABLING) 6684 ip_idx[idx] = -1; 6685 } 6686 6687 /* Break if all IP states checked */ 6688 if ((ip_idx[0] == -1) && 6689 (ip_idx[1] == -1) && 6690 (ip_idx[2] == -1) && 6691 (ip_idx[3] == -1)) 6692 break; 6693 schedule_timeout_uninterruptible(HZ); 6694 } while (time_after(wtime, jiffies)); 6695 } 6696 6697 static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry, 6698 struct dev_db_entry *flash_ddb_entry) 6699 { 6700 uint16_t options = 0; 6701 size_t ip_len = IP_ADDR_LEN; 6702 6703 options = le16_to_cpu(fw_ddb_entry->options); 6704 if (options & DDB_OPT_IPV6_DEVICE) 6705 ip_len = IPv6_ADDR_LEN; 6706 6707 if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len)) 6708 return QLA_ERROR; 6709 6710 if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0], 6711 sizeof(fw_ddb_entry->isid))) 6712 return QLA_ERROR; 6713 6714 if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port, 6715 sizeof(fw_ddb_entry->port))) 6716 return QLA_ERROR; 6717 6718 return QLA_SUCCESS; 6719 } 6720 6721 static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha, 6722 struct dev_db_entry *fw_ddb_entry, 6723 uint32_t fw_idx, uint32_t *flash_index) 6724 { 6725 struct dev_db_entry *flash_ddb_entry; 6726 dma_addr_t flash_ddb_entry_dma; 6727 uint32_t idx = 0; 6728 int max_ddbs; 6729 int ret = QLA_ERROR, status; 6730 6731 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6732 MAX_DEV_DB_ENTRIES; 6733 6734 flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6735 &flash_ddb_entry_dma); 6736 if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) { 6737 ql4_printk(KERN_ERR, ha, "Out of memory\n"); 6738 goto exit_find_st_idx; 6739 } 6740 6741 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6742 flash_ddb_entry_dma, fw_idx); 6743 if (status == QLA_SUCCESS) { 6744 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6745 if (status == QLA_SUCCESS) { 6746 *flash_index = fw_idx; 6747 ret = QLA_SUCCESS; 6748 goto exit_find_st_idx; 6749 } 6750 } 6751 6752 for (idx = 0; idx < max_ddbs; idx++) { 6753 status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry, 6754 flash_ddb_entry_dma, idx); 6755 if (status == QLA_ERROR) 6756 continue; 6757 6758 status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry); 6759 if (status == QLA_SUCCESS) { 6760 *flash_index = idx; 6761 ret = QLA_SUCCESS; 6762 goto exit_find_st_idx; 6763 } 6764 } 6765 6766 if (idx == max_ddbs) 6767 ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n", 6768 fw_idx); 6769 6770 exit_find_st_idx: 6771 if (flash_ddb_entry) 6772 dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry, 6773 flash_ddb_entry_dma); 6774 6775 return ret; 6776 } 6777 6778 static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 6779 struct list_head *list_st) 6780 { 6781 struct qla_ddb_index *st_ddb_idx; 6782 int max_ddbs; 6783 int fw_idx_size; 6784 struct dev_db_entry *fw_ddb_entry; 6785 dma_addr_t fw_ddb_dma; 6786 int ret; 6787 uint32_t idx = 0, next_idx = 0; 6788 uint32_t state = 0, conn_err = 0; 6789 uint32_t flash_index = -1; 6790 uint16_t conn_id = 0; 6791 6792 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 6793 &fw_ddb_dma); 6794 if (fw_ddb_entry == NULL) { 6795 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 6796 goto exit_st_list; 6797 } 6798 6799 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6800 MAX_DEV_DB_ENTRIES; 6801 fw_idx_size = sizeof(struct qla_ddb_index); 6802 6803 for (idx = 0; idx < max_ddbs; idx = next_idx) { 6804 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 6805 NULL, &next_idx, &state, 6806 &conn_err, NULL, &conn_id); 6807 if (ret == QLA_ERROR) 6808 break; 6809 6810 /* Ignore DDB if invalid state (unassigned) */ 6811 if (state == DDB_DS_UNASSIGNED) 6812 goto continue_next_st; 6813 6814 /* Check if ST, add to the list_st */ 6815 if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 6816 goto continue_next_st; 6817 6818 st_ddb_idx = vzalloc(fw_idx_size); 6819 if (!st_ddb_idx) 6820 break; 6821 6822 ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx, 6823 &flash_index); 6824 if (ret == QLA_ERROR) { 6825 ql4_printk(KERN_ERR, ha, 6826 "No flash entry for ST at idx [%d]\n", idx); 6827 st_ddb_idx->flash_ddb_idx = idx; 6828 } else { 6829 ql4_printk(KERN_INFO, ha, 6830 "ST at idx [%d] is stored at flash [%d]\n", 6831 idx, flash_index); 6832 st_ddb_idx->flash_ddb_idx = flash_index; 6833 } 6834 6835 st_ddb_idx->fw_ddb_idx = idx; 6836 6837 list_add_tail(&st_ddb_idx->list, list_st); 6838 continue_next_st: 6839 if (next_idx == 0) 6840 break; 6841 } 6842 6843 exit_st_list: 6844 if (fw_ddb_entry) 6845 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 6846 } 6847 6848 /** 6849 * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 6850 * @ha: pointer to adapter structure 6851 * @list_ddb: List from which failed ddb to be removed 6852 * 6853 * Iterate over the list of DDBs and find and remove DDBs that are either in 6854 * no connection active state or failed state 6855 **/ 6856 static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 6857 struct list_head *list_ddb) 6858 { 6859 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6860 uint32_t next_idx = 0; 6861 uint32_t state = 0, conn_err = 0; 6862 int ret; 6863 6864 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6865 ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 6866 NULL, 0, NULL, &next_idx, &state, 6867 &conn_err, NULL, NULL); 6868 if (ret == QLA_ERROR) 6869 continue; 6870 6871 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 6872 state == DDB_DS_SESSION_FAILED) { 6873 list_del_init(&ddb_idx->list); 6874 vfree(ddb_idx); 6875 } 6876 } 6877 } 6878 6879 static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha, 6880 struct ddb_entry *ddb_entry, 6881 struct dev_db_entry *fw_ddb_entry) 6882 { 6883 struct iscsi_cls_session *cls_sess; 6884 struct iscsi_session *sess; 6885 uint32_t max_ddbs = 0; 6886 uint16_t ddb_link = -1; 6887 6888 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 6889 MAX_DEV_DB_ENTRIES; 6890 6891 cls_sess = ddb_entry->sess; 6892 sess = cls_sess->dd_data; 6893 6894 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6895 if (ddb_link < max_ddbs) 6896 sess->discovery_parent_idx = ddb_link; 6897 else 6898 sess->discovery_parent_idx = DDB_NO_LINK; 6899 } 6900 6901 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 6902 struct dev_db_entry *fw_ddb_entry, 6903 int is_reset, uint16_t idx) 6904 { 6905 struct iscsi_cls_session *cls_sess; 6906 struct iscsi_session *sess; 6907 struct iscsi_cls_conn *cls_conn; 6908 struct iscsi_endpoint *ep; 6909 uint16_t cmds_max = 32; 6910 uint16_t conn_id = 0; 6911 uint32_t initial_cmdsn = 0; 6912 int ret = QLA_SUCCESS; 6913 6914 struct ddb_entry *ddb_entry = NULL; 6915 6916 /* Create session object, with INVALID_ENTRY, 6917 * the targer_id would get set when we issue the login 6918 */ 6919 cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 6920 cmds_max, sizeof(struct ddb_entry), 6921 sizeof(struct ql4_task_data), 6922 initial_cmdsn, INVALID_ENTRY); 6923 if (!cls_sess) { 6924 ret = QLA_ERROR; 6925 goto exit_setup; 6926 } 6927 6928 /* 6929 * so calling module_put function to decrement the 6930 * reference count. 6931 **/ 6932 module_put(qla4xxx_iscsi_transport.owner); 6933 sess = cls_sess->dd_data; 6934 ddb_entry = sess->dd_data; 6935 ddb_entry->sess = cls_sess; 6936 6937 cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 6938 memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 6939 sizeof(struct dev_db_entry)); 6940 6941 qla4xxx_setup_flash_ddb_entry(ha, ddb_entry, idx); 6942 6943 cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 6944 6945 if (!cls_conn) { 6946 ret = QLA_ERROR; 6947 goto exit_setup; 6948 } 6949 6950 ddb_entry->conn = cls_conn; 6951 6952 /* Setup ep, for displaying attributes in sysfs */ 6953 ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 6954 if (ep) { 6955 ep->conn = cls_conn; 6956 cls_conn->ep = ep; 6957 } else { 6958 DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 6959 ret = QLA_ERROR; 6960 goto exit_setup; 6961 } 6962 6963 /* Update sess/conn params */ 6964 qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 6965 qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry); 6966 6967 if (is_reset == RESET_ADAPTER) { 6968 iscsi_block_session(cls_sess); 6969 /* Use the relogin path to discover new devices 6970 * by short-circuiting the logic of setting 6971 * timer to relogin - instead set the flags 6972 * to initiate login right away. 6973 */ 6974 set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 6975 set_bit(DF_RELOGIN, &ddb_entry->flags); 6976 } 6977 6978 exit_setup: 6979 return ret; 6980 } 6981 6982 static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha, 6983 struct list_head *list_ddb, 6984 struct dev_db_entry *fw_ddb_entry) 6985 { 6986 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 6987 uint16_t ddb_link; 6988 6989 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 6990 6991 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 6992 if (ddb_idx->fw_ddb_idx == ddb_link) { 6993 DEBUG2(ql4_printk(KERN_INFO, ha, 6994 "Updating NT parent idx from [%d] to [%d]\n", 6995 ddb_link, ddb_idx->flash_ddb_idx)); 6996 fw_ddb_entry->ddb_link = 6997 cpu_to_le16(ddb_idx->flash_ddb_idx); 6998 return; 6999 } 7000 } 7001 } 7002 7003 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 7004 struct list_head *list_nt, 7005 struct list_head *list_st, 7006 int is_reset) 7007 { 7008 struct dev_db_entry *fw_ddb_entry; 7009 struct ddb_entry *ddb_entry = NULL; 7010 dma_addr_t fw_ddb_dma; 7011 int max_ddbs; 7012 int fw_idx_size; 7013 int ret; 7014 uint32_t idx = 0, next_idx = 0; 7015 uint32_t state = 0, conn_err = 0; 7016 uint32_t ddb_idx = -1; 7017 uint16_t conn_id = 0; 7018 uint16_t ddb_link = -1; 7019 struct qla_ddb_index *nt_ddb_idx; 7020 7021 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7022 &fw_ddb_dma); 7023 if (fw_ddb_entry == NULL) { 7024 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7025 goto exit_nt_list; 7026 } 7027 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7028 MAX_DEV_DB_ENTRIES; 7029 fw_idx_size = sizeof(struct qla_ddb_index); 7030 7031 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7032 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7033 NULL, &next_idx, &state, 7034 &conn_err, NULL, &conn_id); 7035 if (ret == QLA_ERROR) 7036 break; 7037 7038 if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 7039 goto continue_next_nt; 7040 7041 /* Check if NT, then add to list it */ 7042 if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 7043 goto continue_next_nt; 7044 7045 ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link); 7046 if (ddb_link < max_ddbs) 7047 qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry); 7048 7049 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 7050 state == DDB_DS_SESSION_FAILED) && 7051 (is_reset == INIT_ADAPTER)) 7052 goto continue_next_nt; 7053 7054 DEBUG2(ql4_printk(KERN_INFO, ha, 7055 "Adding DDB to session = 0x%x\n", idx)); 7056 7057 if (is_reset == INIT_ADAPTER) { 7058 nt_ddb_idx = vmalloc(fw_idx_size); 7059 if (!nt_ddb_idx) 7060 break; 7061 7062 nt_ddb_idx->fw_ddb_idx = idx; 7063 7064 /* Copy original isid as it may get updated in function 7065 * qla4xxx_update_isid(). We need original isid in 7066 * function qla4xxx_compare_tuple_ddb to find duplicate 7067 * target */ 7068 memcpy(&nt_ddb_idx->flash_isid[0], 7069 &fw_ddb_entry->isid[0], 7070 sizeof(nt_ddb_idx->flash_isid)); 7071 7072 ret = qla4xxx_is_flash_ddb_exists(ha, list_nt, 7073 fw_ddb_entry); 7074 if (ret == QLA_SUCCESS) { 7075 /* free nt_ddb_idx and do not add to list_nt */ 7076 vfree(nt_ddb_idx); 7077 goto continue_next_nt; 7078 } 7079 7080 /* Copy updated isid */ 7081 memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 7082 sizeof(struct dev_db_entry)); 7083 7084 list_add_tail(&nt_ddb_idx->list, list_nt); 7085 } else if (is_reset == RESET_ADAPTER) { 7086 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, 7087 &ddb_idx); 7088 if (ret == QLA_SUCCESS) { 7089 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, 7090 ddb_idx); 7091 if (ddb_entry != NULL) 7092 qla4xxx_update_sess_disc_idx(ha, 7093 ddb_entry, 7094 fw_ddb_entry); 7095 goto continue_next_nt; 7096 } 7097 } 7098 7099 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx); 7100 if (ret == QLA_ERROR) 7101 goto exit_nt_list; 7102 7103 continue_next_nt: 7104 if (next_idx == 0) 7105 break; 7106 } 7107 7108 exit_nt_list: 7109 if (fw_ddb_entry) 7110 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7111 } 7112 7113 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, 7114 struct list_head *list_nt, 7115 uint16_t target_id) 7116 { 7117 struct dev_db_entry *fw_ddb_entry; 7118 dma_addr_t fw_ddb_dma; 7119 int max_ddbs; 7120 int fw_idx_size; 7121 int ret; 7122 uint32_t idx = 0, next_idx = 0; 7123 uint32_t state = 0, conn_err = 0; 7124 uint16_t conn_id = 0; 7125 struct qla_ddb_index *nt_ddb_idx; 7126 7127 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7128 &fw_ddb_dma); 7129 if (fw_ddb_entry == NULL) { 7130 DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 7131 goto exit_new_nt_list; 7132 } 7133 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 7134 MAX_DEV_DB_ENTRIES; 7135 fw_idx_size = sizeof(struct qla_ddb_index); 7136 7137 for (idx = 0; idx < max_ddbs; idx = next_idx) { 7138 ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 7139 NULL, &next_idx, &state, 7140 &conn_err, NULL, &conn_id); 7141 if (ret == QLA_ERROR) 7142 break; 7143 7144 /* Check if NT, then add it to list */ 7145 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7146 goto continue_next_new_nt; 7147 7148 if (!(state == DDB_DS_NO_CONNECTION_ACTIVE)) 7149 goto continue_next_new_nt; 7150 7151 DEBUG2(ql4_printk(KERN_INFO, ha, 7152 "Adding DDB to session = 0x%x\n", idx)); 7153 7154 nt_ddb_idx = vmalloc(fw_idx_size); 7155 if (!nt_ddb_idx) 7156 break; 7157 7158 nt_ddb_idx->fw_ddb_idx = idx; 7159 7160 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7161 if (ret == QLA_SUCCESS) { 7162 /* free nt_ddb_idx and do not add to list_nt */ 7163 vfree(nt_ddb_idx); 7164 goto continue_next_new_nt; 7165 } 7166 7167 if (target_id < max_ddbs) 7168 fw_ddb_entry->ddb_link = cpu_to_le16(target_id); 7169 7170 list_add_tail(&nt_ddb_idx->list, list_nt); 7171 7172 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7173 idx); 7174 if (ret == QLA_ERROR) 7175 goto exit_new_nt_list; 7176 7177 continue_next_new_nt: 7178 if (next_idx == 0) 7179 break; 7180 } 7181 7182 exit_new_nt_list: 7183 if (fw_ddb_entry) 7184 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7185 } 7186 7187 /** 7188 * qla4xxx_sysfs_ddb_is_non_persistent - check for non-persistence of ddb entry 7189 * @dev: dev associated with the sysfs entry 7190 * @data: pointer to flashnode session object 7191 * 7192 * Returns: 7193 * 1: if flashnode entry is non-persistent 7194 * 0: if flashnode entry is persistent 7195 **/ 7196 static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, 7197 const void *data) 7198 { 7199 struct iscsi_bus_flash_session *fnode_sess; 7200 7201 if (!iscsi_flashnode_bus_match(dev, NULL)) 7202 return 0; 7203 7204 fnode_sess = iscsi_dev_to_flash_session(dev); 7205 7206 return (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT); 7207 } 7208 7209 /** 7210 * qla4xxx_sysfs_ddb_tgt_create - Create sysfs entry for target 7211 * @ha: pointer to host 7212 * @fw_ddb_entry: flash ddb data 7213 * @idx: target index 7214 * @user: if set then this call is made from userland else from kernel 7215 * 7216 * Returns: 7217 * On sucess: QLA_SUCCESS 7218 * On failure: QLA_ERROR 7219 * 7220 * This create separate sysfs entries for session and connection attributes of 7221 * the given fw ddb entry. 7222 * If this is invoked as a result of a userspace call then the entry is marked 7223 * as nonpersistent using flash_state field. 7224 **/ 7225 static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, 7226 struct dev_db_entry *fw_ddb_entry, 7227 uint16_t *idx, int user) 7228 { 7229 struct iscsi_bus_flash_session *fnode_sess = NULL; 7230 struct iscsi_bus_flash_conn *fnode_conn = NULL; 7231 int rc = QLA_ERROR; 7232 7233 fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, 7234 &qla4xxx_iscsi_transport, 0); 7235 if (!fnode_sess) { 7236 ql4_printk(KERN_ERR, ha, 7237 "%s: Unable to create session sysfs entry for flashnode %d of host%lu\n", 7238 __func__, *idx, ha->host_no); 7239 goto exit_tgt_create; 7240 } 7241 7242 fnode_conn = iscsi_create_flashnode_conn(ha->host, fnode_sess, 7243 &qla4xxx_iscsi_transport, 0); 7244 if (!fnode_conn) { 7245 ql4_printk(KERN_ERR, ha, 7246 "%s: Unable to create conn sysfs entry for flashnode %d of host%lu\n", 7247 __func__, *idx, ha->host_no); 7248 goto free_sess; 7249 } 7250 7251 if (user) { 7252 fnode_sess->flash_state = DEV_DB_NON_PERSISTENT; 7253 } else { 7254 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7255 7256 if (*idx == ha->pri_ddb_idx || *idx == ha->sec_ddb_idx) 7257 fnode_sess->is_boot_target = 1; 7258 else 7259 fnode_sess->is_boot_target = 0; 7260 } 7261 7262 rc = qla4xxx_copy_from_fwddb_param(fnode_sess, fnode_conn, 7263 fw_ddb_entry); 7264 if (rc) 7265 goto free_sess; 7266 7267 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7268 __func__, fnode_sess->dev.kobj.name); 7269 7270 ql4_printk(KERN_INFO, ha, "%s: sysfs entry %s created\n", 7271 __func__, fnode_conn->dev.kobj.name); 7272 7273 return QLA_SUCCESS; 7274 7275 free_sess: 7276 iscsi_destroy_flashnode_sess(fnode_sess); 7277 7278 exit_tgt_create: 7279 return QLA_ERROR; 7280 } 7281 7282 /** 7283 * qla4xxx_sysfs_ddb_add - Add new ddb entry in flash 7284 * @shost: pointer to host 7285 * @buf: type of ddb entry (ipv4/ipv6) 7286 * @len: length of buf 7287 * 7288 * This creates new ddb entry in the flash by finding first free index and 7289 * storing default ddb there. And then create sysfs entry for the new ddb entry. 7290 **/ 7291 static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, 7292 int len) 7293 { 7294 struct scsi_qla_host *ha = to_qla_host(shost); 7295 struct dev_db_entry *fw_ddb_entry = NULL; 7296 dma_addr_t fw_ddb_entry_dma; 7297 struct device *dev; 7298 uint16_t idx = 0; 7299 uint16_t max_ddbs = 0; 7300 uint32_t options = 0; 7301 uint32_t rval = QLA_ERROR; 7302 7303 if (strncasecmp(PORTAL_TYPE_IPV4, buf, 4) && 7304 strncasecmp(PORTAL_TYPE_IPV6, buf, 4)) { 7305 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Invalid portal type\n", 7306 __func__)); 7307 goto exit_ddb_add; 7308 } 7309 7310 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 7311 MAX_DEV_DB_ENTRIES; 7312 7313 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7314 &fw_ddb_entry_dma, GFP_KERNEL); 7315 if (!fw_ddb_entry) { 7316 DEBUG2(ql4_printk(KERN_ERR, ha, 7317 "%s: Unable to allocate dma buffer\n", 7318 __func__)); 7319 goto exit_ddb_add; 7320 } 7321 7322 dev = iscsi_find_flashnode_sess(ha->host, NULL, 7323 qla4xxx_sysfs_ddb_is_non_persistent); 7324 if (dev) { 7325 ql4_printk(KERN_ERR, ha, 7326 "%s: A non-persistent entry %s found\n", 7327 __func__, dev->kobj.name); 7328 put_device(dev); 7329 goto exit_ddb_add; 7330 } 7331 7332 /* Index 0 and 1 are reserved for boot target entries */ 7333 for (idx = 2; idx < max_ddbs; idx++) { 7334 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, 7335 fw_ddb_entry_dma, idx)) 7336 break; 7337 } 7338 7339 if (idx == max_ddbs) 7340 goto exit_ddb_add; 7341 7342 if (!strncasecmp("ipv6", buf, 4)) 7343 options |= IPV6_DEFAULT_DDB_ENTRY; 7344 7345 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7346 if (rval == QLA_ERROR) 7347 goto exit_ddb_add; 7348 7349 rval = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 1); 7350 7351 exit_ddb_add: 7352 if (fw_ddb_entry) 7353 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7354 fw_ddb_entry, fw_ddb_entry_dma); 7355 if (rval == QLA_SUCCESS) 7356 return idx; 7357 else 7358 return -EIO; 7359 } 7360 7361 /** 7362 * qla4xxx_sysfs_ddb_apply - write the target ddb contents to Flash 7363 * @fnode_sess: pointer to session attrs of flash ddb entry 7364 * @fnode_conn: pointer to connection attrs of flash ddb entry 7365 * 7366 * This writes the contents of target ddb buffer to Flash with a valid cookie 7367 * value in order to make the ddb entry persistent. 7368 **/ 7369 static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, 7370 struct iscsi_bus_flash_conn *fnode_conn) 7371 { 7372 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7373 struct scsi_qla_host *ha = to_qla_host(shost); 7374 uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO; 7375 struct dev_db_entry *fw_ddb_entry = NULL; 7376 dma_addr_t fw_ddb_entry_dma; 7377 uint32_t options = 0; 7378 int rval = 0; 7379 7380 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7381 &fw_ddb_entry_dma, GFP_KERNEL); 7382 if (!fw_ddb_entry) { 7383 DEBUG2(ql4_printk(KERN_ERR, ha, 7384 "%s: Unable to allocate dma buffer\n", 7385 __func__)); 7386 rval = -ENOMEM; 7387 goto exit_ddb_apply; 7388 } 7389 7390 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7391 options |= IPV6_DEFAULT_DDB_ENTRY; 7392 7393 rval = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7394 if (rval == QLA_ERROR) 7395 goto exit_ddb_apply; 7396 7397 dev_db_start_offset += (fnode_sess->target_id * 7398 sizeof(*fw_ddb_entry)); 7399 7400 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7401 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7402 7403 rval = qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 7404 sizeof(*fw_ddb_entry), FLASH_OPT_RMW_COMMIT); 7405 7406 if (rval == QLA_SUCCESS) { 7407 fnode_sess->flash_state = DEV_DB_PERSISTENT; 7408 ql4_printk(KERN_INFO, ha, 7409 "%s: flash node %u of host %lu written to flash\n", 7410 __func__, fnode_sess->target_id, ha->host_no); 7411 } else { 7412 rval = -EIO; 7413 ql4_printk(KERN_ERR, ha, 7414 "%s: Error while writing flash node %u of host %lu to flash\n", 7415 __func__, fnode_sess->target_id, ha->host_no); 7416 } 7417 7418 exit_ddb_apply: 7419 if (fw_ddb_entry) 7420 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7421 fw_ddb_entry, fw_ddb_entry_dma); 7422 return rval; 7423 } 7424 7425 static ssize_t qla4xxx_sysfs_ddb_conn_open(struct scsi_qla_host *ha, 7426 struct dev_db_entry *fw_ddb_entry, 7427 uint16_t idx) 7428 { 7429 struct dev_db_entry *ddb_entry = NULL; 7430 dma_addr_t ddb_entry_dma; 7431 unsigned long wtime; 7432 uint32_t mbx_sts = 0; 7433 uint32_t state = 0, conn_err = 0; 7434 uint16_t tmo = 0; 7435 int ret = 0; 7436 7437 ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7438 &ddb_entry_dma, GFP_KERNEL); 7439 if (!ddb_entry) { 7440 DEBUG2(ql4_printk(KERN_ERR, ha, 7441 "%s: Unable to allocate dma buffer\n", 7442 __func__)); 7443 return QLA_ERROR; 7444 } 7445 7446 memcpy(ddb_entry, fw_ddb_entry, sizeof(*ddb_entry)); 7447 7448 ret = qla4xxx_set_ddb_entry(ha, idx, ddb_entry_dma, &mbx_sts); 7449 if (ret != QLA_SUCCESS) { 7450 DEBUG2(ql4_printk(KERN_ERR, ha, 7451 "%s: Unable to set ddb entry for index %d\n", 7452 __func__, idx)); 7453 goto exit_ddb_conn_open; 7454 } 7455 7456 qla4xxx_conn_open(ha, idx); 7457 7458 /* To ensure that sendtargets is done, wait for at least 12 secs */ 7459 tmo = ((ha->def_timeout > LOGIN_TOV) && 7460 (ha->def_timeout < LOGIN_TOV * 10) ? 7461 ha->def_timeout : LOGIN_TOV); 7462 7463 DEBUG2(ql4_printk(KERN_INFO, ha, 7464 "Default time to wait for login to ddb %d\n", tmo)); 7465 7466 wtime = jiffies + (HZ * tmo); 7467 do { 7468 ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL, 7469 NULL, &state, &conn_err, NULL, 7470 NULL); 7471 if (ret == QLA_ERROR) 7472 continue; 7473 7474 if (state == DDB_DS_NO_CONNECTION_ACTIVE || 7475 state == DDB_DS_SESSION_FAILED) 7476 break; 7477 7478 schedule_timeout_uninterruptible(HZ / 10); 7479 } while (time_after(wtime, jiffies)); 7480 7481 exit_ddb_conn_open: 7482 if (ddb_entry) 7483 dma_free_coherent(&ha->pdev->dev, sizeof(*ddb_entry), 7484 ddb_entry, ddb_entry_dma); 7485 return ret; 7486 } 7487 7488 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha, 7489 struct dev_db_entry *fw_ddb_entry, 7490 uint16_t target_id) 7491 { 7492 struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 7493 struct list_head list_nt; 7494 uint16_t ddb_index; 7495 int ret = 0; 7496 7497 if (test_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags)) { 7498 ql4_printk(KERN_WARNING, ha, 7499 "%s: A discovery already in progress!\n", __func__); 7500 return QLA_ERROR; 7501 } 7502 7503 INIT_LIST_HEAD(&list_nt); 7504 7505 set_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7506 7507 ret = qla4xxx_get_ddb_index(ha, &ddb_index); 7508 if (ret == QLA_ERROR) 7509 goto exit_login_st_clr_bit; 7510 7511 ret = qla4xxx_sysfs_ddb_conn_open(ha, fw_ddb_entry, ddb_index); 7512 if (ret == QLA_ERROR) 7513 goto exit_login_st; 7514 7515 qla4xxx_build_new_nt_list(ha, &list_nt, target_id); 7516 7517 list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) { 7518 list_del_init(&ddb_idx->list); 7519 qla4xxx_clear_ddb_entry(ha, ddb_idx->fw_ddb_idx); 7520 vfree(ddb_idx); 7521 } 7522 7523 exit_login_st: 7524 if (qla4xxx_clear_ddb_entry(ha, ddb_index) == QLA_ERROR) { 7525 ql4_printk(KERN_ERR, ha, 7526 "Unable to clear DDB index = 0x%x\n", ddb_index); 7527 } 7528 7529 clear_bit(ddb_index, ha->ddb_idx_map); 7530 7531 exit_login_st_clr_bit: 7532 clear_bit(AF_ST_DISCOVERY_IN_PROGRESS, &ha->flags); 7533 return ret; 7534 } 7535 7536 static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, 7537 struct dev_db_entry *fw_ddb_entry, 7538 uint16_t idx) 7539 { 7540 int ret = QLA_ERROR; 7541 7542 ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL); 7543 if (ret != QLA_SUCCESS) 7544 ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER, 7545 idx); 7546 else 7547 ret = -EPERM; 7548 7549 return ret; 7550 } 7551 7552 /** 7553 * qla4xxx_sysfs_ddb_login - Login to the specified target 7554 * @fnode_sess: pointer to session attrs of flash ddb entry 7555 * @fnode_conn: pointer to connection attrs of flash ddb entry 7556 * 7557 * This logs in to the specified target 7558 **/ 7559 static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, 7560 struct iscsi_bus_flash_conn *fnode_conn) 7561 { 7562 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7563 struct scsi_qla_host *ha = to_qla_host(shost); 7564 struct dev_db_entry *fw_ddb_entry = NULL; 7565 dma_addr_t fw_ddb_entry_dma; 7566 uint32_t options = 0; 7567 int ret = 0; 7568 7569 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) { 7570 ql4_printk(KERN_ERR, ha, 7571 "%s: Target info is not persistent\n", __func__); 7572 ret = -EIO; 7573 goto exit_ddb_login; 7574 } 7575 7576 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7577 &fw_ddb_entry_dma, GFP_KERNEL); 7578 if (!fw_ddb_entry) { 7579 DEBUG2(ql4_printk(KERN_ERR, ha, 7580 "%s: Unable to allocate dma buffer\n", 7581 __func__)); 7582 ret = -ENOMEM; 7583 goto exit_ddb_login; 7584 } 7585 7586 if (!strncasecmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7587 options |= IPV6_DEFAULT_DDB_ENTRY; 7588 7589 ret = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma); 7590 if (ret == QLA_ERROR) 7591 goto exit_ddb_login; 7592 7593 qla4xxx_copy_to_fwddb_param(fnode_sess, fnode_conn, fw_ddb_entry); 7594 fw_ddb_entry->cookie = DDB_VALID_COOKIE; 7595 7596 if (strlen((char *)fw_ddb_entry->iscsi_name) == 0) 7597 ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry, 7598 fnode_sess->target_id); 7599 else 7600 ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry, 7601 fnode_sess->target_id); 7602 7603 if (ret > 0) 7604 ret = -EIO; 7605 7606 exit_ddb_login: 7607 if (fw_ddb_entry) 7608 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7609 fw_ddb_entry, fw_ddb_entry_dma); 7610 return ret; 7611 } 7612 7613 /** 7614 * qla4xxx_sysfs_ddb_logout_sid - Logout session for the specified target 7615 * @cls_sess: pointer to session to be logged out 7616 * 7617 * This performs session log out from the specified target 7618 **/ 7619 static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) 7620 { 7621 struct iscsi_session *sess; 7622 struct ddb_entry *ddb_entry = NULL; 7623 struct scsi_qla_host *ha; 7624 struct dev_db_entry *fw_ddb_entry = NULL; 7625 dma_addr_t fw_ddb_entry_dma; 7626 unsigned long flags; 7627 unsigned long wtime; 7628 uint32_t ddb_state; 7629 int options; 7630 int ret = 0; 7631 7632 sess = cls_sess->dd_data; 7633 ddb_entry = sess->dd_data; 7634 ha = ddb_entry->ha; 7635 7636 if (ddb_entry->ddb_type != FLASH_DDB) { 7637 ql4_printk(KERN_ERR, ha, "%s: Not a flash node session\n", 7638 __func__); 7639 ret = -ENXIO; 7640 goto exit_ddb_logout; 7641 } 7642 7643 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 7644 ql4_printk(KERN_ERR, ha, 7645 "%s: Logout from boot target entry is not permitted.\n", 7646 __func__); 7647 ret = -EPERM; 7648 goto exit_ddb_logout; 7649 } 7650 7651 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7652 &fw_ddb_entry_dma, GFP_KERNEL); 7653 if (!fw_ddb_entry) { 7654 ql4_printk(KERN_ERR, ha, 7655 "%s: Unable to allocate dma buffer\n", __func__); 7656 ret = -ENOMEM; 7657 goto exit_ddb_logout; 7658 } 7659 7660 if (test_and_set_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags)) 7661 goto ddb_logout_init; 7662 7663 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7664 fw_ddb_entry, fw_ddb_entry_dma, 7665 NULL, NULL, &ddb_state, NULL, 7666 NULL, NULL); 7667 if (ret == QLA_ERROR) 7668 goto ddb_logout_init; 7669 7670 if (ddb_state == DDB_DS_SESSION_ACTIVE) 7671 goto ddb_logout_init; 7672 7673 /* wait until next relogin is triggered using DF_RELOGIN and 7674 * clear DF_RELOGIN to avoid invocation of further relogin 7675 */ 7676 wtime = jiffies + (HZ * RELOGIN_TOV); 7677 do { 7678 if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags)) 7679 goto ddb_logout_init; 7680 7681 schedule_timeout_uninterruptible(HZ); 7682 } while ((time_after(wtime, jiffies))); 7683 7684 ddb_logout_init: 7685 atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 7686 atomic_set(&ddb_entry->relogin_timer, 0); 7687 7688 options = LOGOUT_OPTION_CLOSE_SESSION; 7689 qla4xxx_session_logout_ddb(ha, ddb_entry, options); 7690 7691 memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry)); 7692 wtime = jiffies + (HZ * LOGOUT_TOV); 7693 do { 7694 ret = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 7695 fw_ddb_entry, fw_ddb_entry_dma, 7696 NULL, NULL, &ddb_state, NULL, 7697 NULL, NULL); 7698 if (ret == QLA_ERROR) 7699 goto ddb_logout_clr_sess; 7700 7701 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 7702 (ddb_state == DDB_DS_SESSION_FAILED)) 7703 goto ddb_logout_clr_sess; 7704 7705 schedule_timeout_uninterruptible(HZ); 7706 } while ((time_after(wtime, jiffies))); 7707 7708 ddb_logout_clr_sess: 7709 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 7710 /* 7711 * we have decremented the reference count of the driver 7712 * when we setup the session to have the driver unload 7713 * to be seamless without actually destroying the 7714 * session 7715 **/ 7716 try_module_get(qla4xxx_iscsi_transport.owner); 7717 iscsi_destroy_endpoint(ddb_entry->conn->ep); 7718 7719 spin_lock_irqsave(&ha->hardware_lock, flags); 7720 qla4xxx_free_ddb(ha, ddb_entry); 7721 clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 7722 spin_unlock_irqrestore(&ha->hardware_lock, flags); 7723 7724 iscsi_session_teardown(ddb_entry->sess); 7725 7726 clear_bit(DF_DISABLE_RELOGIN, &ddb_entry->flags); 7727 ret = QLA_SUCCESS; 7728 7729 exit_ddb_logout: 7730 if (fw_ddb_entry) 7731 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 7732 fw_ddb_entry, fw_ddb_entry_dma); 7733 return ret; 7734 } 7735 7736 /** 7737 * qla4xxx_sysfs_ddb_logout - Logout from the specified target 7738 * @fnode_sess: pointer to session attrs of flash ddb entry 7739 * @fnode_conn: pointer to connection attrs of flash ddb entry 7740 * 7741 * This performs log out from the specified target 7742 **/ 7743 static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, 7744 struct iscsi_bus_flash_conn *fnode_conn) 7745 { 7746 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7747 struct scsi_qla_host *ha = to_qla_host(shost); 7748 struct ql4_tuple_ddb *flash_tddb = NULL; 7749 struct ql4_tuple_ddb *tmp_tddb = NULL; 7750 struct dev_db_entry *fw_ddb_entry = NULL; 7751 struct ddb_entry *ddb_entry = NULL; 7752 dma_addr_t fw_ddb_dma; 7753 uint32_t next_idx = 0; 7754 uint32_t state = 0, conn_err = 0; 7755 uint16_t conn_id = 0; 7756 int idx, index; 7757 int status, ret = 0; 7758 7759 fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 7760 &fw_ddb_dma); 7761 if (fw_ddb_entry == NULL) { 7762 ql4_printk(KERN_ERR, ha, "%s:Out of memory\n", __func__); 7763 ret = -ENOMEM; 7764 goto exit_ddb_logout; 7765 } 7766 7767 flash_tddb = vzalloc(sizeof(*flash_tddb)); 7768 if (!flash_tddb) { 7769 ql4_printk(KERN_WARNING, ha, 7770 "%s:Memory Allocation failed.\n", __func__); 7771 ret = -ENOMEM; 7772 goto exit_ddb_logout; 7773 } 7774 7775 tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 7776 if (!tmp_tddb) { 7777 ql4_printk(KERN_WARNING, ha, 7778 "%s:Memory Allocation failed.\n", __func__); 7779 ret = -ENOMEM; 7780 goto exit_ddb_logout; 7781 } 7782 7783 if (!fnode_sess->targetname) { 7784 ql4_printk(KERN_ERR, ha, 7785 "%s:Cannot logout from SendTarget entry\n", 7786 __func__); 7787 ret = -EPERM; 7788 goto exit_ddb_logout; 7789 } 7790 7791 if (fnode_sess->is_boot_target) { 7792 ql4_printk(KERN_ERR, ha, 7793 "%s: Logout from boot target entry is not permitted.\n", 7794 __func__); 7795 ret = -EPERM; 7796 goto exit_ddb_logout; 7797 } 7798 7799 strscpy(flash_tddb->iscsi_name, fnode_sess->targetname, 7800 sizeof(flash_tddb->iscsi_name)); 7801 7802 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7803 sprintf(flash_tddb->ip_addr, "%pI6", fnode_conn->ipaddress); 7804 else 7805 sprintf(flash_tddb->ip_addr, "%pI4", fnode_conn->ipaddress); 7806 7807 flash_tddb->tpgt = fnode_sess->tpgt; 7808 flash_tddb->port = fnode_conn->port; 7809 7810 COPY_ISID(flash_tddb->isid, fnode_sess->isid); 7811 7812 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 7813 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 7814 if (ddb_entry == NULL) 7815 continue; 7816 7817 if (ddb_entry->ddb_type != FLASH_DDB) 7818 continue; 7819 7820 index = ddb_entry->sess->target_id; 7821 status = qla4xxx_get_fwddb_entry(ha, index, fw_ddb_entry, 7822 fw_ddb_dma, NULL, &next_idx, 7823 &state, &conn_err, NULL, 7824 &conn_id); 7825 if (status == QLA_ERROR) { 7826 ret = -ENOMEM; 7827 break; 7828 } 7829 7830 qla4xxx_convert_param_ddb(fw_ddb_entry, tmp_tddb, NULL); 7831 7832 status = qla4xxx_compare_tuple_ddb(ha, flash_tddb, tmp_tddb, 7833 true); 7834 if (status == QLA_SUCCESS) { 7835 ret = qla4xxx_sysfs_ddb_logout_sid(ddb_entry->sess); 7836 break; 7837 } 7838 } 7839 7840 if (idx == MAX_DDB_ENTRIES) 7841 ret = -ESRCH; 7842 7843 exit_ddb_logout: 7844 vfree(flash_tddb); 7845 vfree(tmp_tddb); 7846 if (fw_ddb_entry) 7847 dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 7848 7849 return ret; 7850 } 7851 7852 static int 7853 qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, 7854 int param, char *buf) 7855 { 7856 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 7857 struct scsi_qla_host *ha = to_qla_host(shost); 7858 struct iscsi_bus_flash_conn *fnode_conn; 7859 struct ql4_chap_table chap_tbl; 7860 struct device *dev; 7861 int parent_type; 7862 int rc = 0; 7863 7864 dev = iscsi_find_flashnode_conn(fnode_sess); 7865 if (!dev) 7866 return -EIO; 7867 7868 fnode_conn = iscsi_dev_to_flash_conn(dev); 7869 7870 switch (param) { 7871 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 7872 rc = sprintf(buf, "%u\n", fnode_conn->is_fw_assigned_ipv6); 7873 break; 7874 case ISCSI_FLASHNODE_PORTAL_TYPE: 7875 rc = sprintf(buf, "%s\n", fnode_sess->portal_type); 7876 break; 7877 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 7878 rc = sprintf(buf, "%u\n", fnode_sess->auto_snd_tgt_disable); 7879 break; 7880 case ISCSI_FLASHNODE_DISCOVERY_SESS: 7881 rc = sprintf(buf, "%u\n", fnode_sess->discovery_sess); 7882 break; 7883 case ISCSI_FLASHNODE_ENTRY_EN: 7884 rc = sprintf(buf, "%u\n", fnode_sess->entry_state); 7885 break; 7886 case ISCSI_FLASHNODE_HDR_DGST_EN: 7887 rc = sprintf(buf, "%u\n", fnode_conn->hdrdgst_en); 7888 break; 7889 case ISCSI_FLASHNODE_DATA_DGST_EN: 7890 rc = sprintf(buf, "%u\n", fnode_conn->datadgst_en); 7891 break; 7892 case ISCSI_FLASHNODE_IMM_DATA_EN: 7893 rc = sprintf(buf, "%u\n", fnode_sess->imm_data_en); 7894 break; 7895 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 7896 rc = sprintf(buf, "%u\n", fnode_sess->initial_r2t_en); 7897 break; 7898 case ISCSI_FLASHNODE_DATASEQ_INORDER: 7899 rc = sprintf(buf, "%u\n", fnode_sess->dataseq_inorder_en); 7900 break; 7901 case ISCSI_FLASHNODE_PDU_INORDER: 7902 rc = sprintf(buf, "%u\n", fnode_sess->pdu_inorder_en); 7903 break; 7904 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 7905 rc = sprintf(buf, "%u\n", fnode_sess->chap_auth_en); 7906 break; 7907 case ISCSI_FLASHNODE_SNACK_REQ_EN: 7908 rc = sprintf(buf, "%u\n", fnode_conn->snack_req_en); 7909 break; 7910 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 7911 rc = sprintf(buf, "%u\n", fnode_sess->discovery_logout_en); 7912 break; 7913 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 7914 rc = sprintf(buf, "%u\n", fnode_sess->bidi_chap_en); 7915 break; 7916 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 7917 rc = sprintf(buf, "%u\n", fnode_sess->discovery_auth_optional); 7918 break; 7919 case ISCSI_FLASHNODE_ERL: 7920 rc = sprintf(buf, "%u\n", fnode_sess->erl); 7921 break; 7922 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 7923 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_stat); 7924 break; 7925 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 7926 rc = sprintf(buf, "%u\n", fnode_conn->tcp_nagle_disable); 7927 break; 7928 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 7929 rc = sprintf(buf, "%u\n", fnode_conn->tcp_wsf_disable); 7930 break; 7931 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 7932 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timer_scale); 7933 break; 7934 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 7935 rc = sprintf(buf, "%u\n", fnode_conn->tcp_timestamp_en); 7936 break; 7937 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 7938 rc = sprintf(buf, "%u\n", fnode_conn->fragment_disable); 7939 break; 7940 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 7941 rc = sprintf(buf, "%u\n", fnode_conn->max_recv_dlength); 7942 break; 7943 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 7944 rc = sprintf(buf, "%u\n", fnode_conn->max_xmit_dlength); 7945 break; 7946 case ISCSI_FLASHNODE_FIRST_BURST: 7947 rc = sprintf(buf, "%u\n", fnode_sess->first_burst); 7948 break; 7949 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 7950 rc = sprintf(buf, "%u\n", fnode_sess->time2wait); 7951 break; 7952 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 7953 rc = sprintf(buf, "%u\n", fnode_sess->time2retain); 7954 break; 7955 case ISCSI_FLASHNODE_MAX_R2T: 7956 rc = sprintf(buf, "%u\n", fnode_sess->max_r2t); 7957 break; 7958 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 7959 rc = sprintf(buf, "%u\n", fnode_conn->keepalive_timeout); 7960 break; 7961 case ISCSI_FLASHNODE_ISID: 7962 rc = sprintf(buf, "%pm\n", fnode_sess->isid); 7963 break; 7964 case ISCSI_FLASHNODE_TSID: 7965 rc = sprintf(buf, "%u\n", fnode_sess->tsid); 7966 break; 7967 case ISCSI_FLASHNODE_PORT: 7968 rc = sprintf(buf, "%d\n", fnode_conn->port); 7969 break; 7970 case ISCSI_FLASHNODE_MAX_BURST: 7971 rc = sprintf(buf, "%u\n", fnode_sess->max_burst); 7972 break; 7973 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 7974 rc = sprintf(buf, "%u\n", 7975 fnode_sess->default_taskmgmt_timeout); 7976 break; 7977 case ISCSI_FLASHNODE_IPADDR: 7978 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7979 rc = sprintf(buf, "%pI6\n", fnode_conn->ipaddress); 7980 else 7981 rc = sprintf(buf, "%pI4\n", fnode_conn->ipaddress); 7982 break; 7983 case ISCSI_FLASHNODE_ALIAS: 7984 if (fnode_sess->targetalias) 7985 rc = sprintf(buf, "%s\n", fnode_sess->targetalias); 7986 else 7987 rc = sprintf(buf, "\n"); 7988 break; 7989 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 7990 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 7991 rc = sprintf(buf, "%pI6\n", 7992 fnode_conn->redirect_ipaddr); 7993 else 7994 rc = sprintf(buf, "%pI4\n", 7995 fnode_conn->redirect_ipaddr); 7996 break; 7997 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 7998 rc = sprintf(buf, "%u\n", fnode_conn->max_segment_size); 7999 break; 8000 case ISCSI_FLASHNODE_LOCAL_PORT: 8001 rc = sprintf(buf, "%u\n", fnode_conn->local_port); 8002 break; 8003 case ISCSI_FLASHNODE_IPV4_TOS: 8004 rc = sprintf(buf, "%u\n", fnode_conn->ipv4_tos); 8005 break; 8006 case ISCSI_FLASHNODE_IPV6_TC: 8007 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 8008 rc = sprintf(buf, "%u\n", 8009 fnode_conn->ipv6_traffic_class); 8010 else 8011 rc = sprintf(buf, "\n"); 8012 break; 8013 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8014 rc = sprintf(buf, "%u\n", fnode_conn->ipv6_flow_label); 8015 break; 8016 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8017 if (!strncmp(fnode_sess->portal_type, PORTAL_TYPE_IPV6, 4)) 8018 rc = sprintf(buf, "%pI6\n", 8019 fnode_conn->link_local_ipv6_addr); 8020 else 8021 rc = sprintf(buf, "\n"); 8022 break; 8023 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8024 rc = sprintf(buf, "%u\n", fnode_sess->discovery_parent_idx); 8025 break; 8026 case ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE: 8027 if (fnode_sess->discovery_parent_type == DDB_ISNS) 8028 parent_type = ISCSI_DISC_PARENT_ISNS; 8029 else if (fnode_sess->discovery_parent_type == DDB_NO_LINK) 8030 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8031 else if (fnode_sess->discovery_parent_type < MAX_DDB_ENTRIES) 8032 parent_type = ISCSI_DISC_PARENT_SENDTGT; 8033 else 8034 parent_type = ISCSI_DISC_PARENT_UNKNOWN; 8035 8036 rc = sprintf(buf, "%s\n", 8037 iscsi_get_discovery_parent_name(parent_type)); 8038 break; 8039 case ISCSI_FLASHNODE_NAME: 8040 if (fnode_sess->targetname) 8041 rc = sprintf(buf, "%s\n", fnode_sess->targetname); 8042 else 8043 rc = sprintf(buf, "\n"); 8044 break; 8045 case ISCSI_FLASHNODE_TPGT: 8046 rc = sprintf(buf, "%u\n", fnode_sess->tpgt); 8047 break; 8048 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8049 rc = sprintf(buf, "%u\n", fnode_conn->tcp_xmit_wsf); 8050 break; 8051 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8052 rc = sprintf(buf, "%u\n", fnode_conn->tcp_recv_wsf); 8053 break; 8054 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8055 rc = sprintf(buf, "%u\n", fnode_sess->chap_out_idx); 8056 break; 8057 case ISCSI_FLASHNODE_USERNAME: 8058 if (fnode_sess->chap_auth_en) { 8059 qla4xxx_get_uni_chap_at_index(ha, 8060 chap_tbl.name, 8061 chap_tbl.secret, 8062 fnode_sess->chap_out_idx); 8063 rc = sprintf(buf, "%s\n", chap_tbl.name); 8064 } else { 8065 rc = sprintf(buf, "\n"); 8066 } 8067 break; 8068 case ISCSI_FLASHNODE_PASSWORD: 8069 if (fnode_sess->chap_auth_en) { 8070 qla4xxx_get_uni_chap_at_index(ha, 8071 chap_tbl.name, 8072 chap_tbl.secret, 8073 fnode_sess->chap_out_idx); 8074 rc = sprintf(buf, "%s\n", chap_tbl.secret); 8075 } else { 8076 rc = sprintf(buf, "\n"); 8077 } 8078 break; 8079 case ISCSI_FLASHNODE_STATSN: 8080 rc = sprintf(buf, "%u\n", fnode_conn->statsn); 8081 break; 8082 case ISCSI_FLASHNODE_EXP_STATSN: 8083 rc = sprintf(buf, "%u\n", fnode_conn->exp_statsn); 8084 break; 8085 case ISCSI_FLASHNODE_IS_BOOT_TGT: 8086 rc = sprintf(buf, "%u\n", fnode_sess->is_boot_target); 8087 break; 8088 default: 8089 rc = -ENOSYS; 8090 break; 8091 } 8092 8093 put_device(dev); 8094 return rc; 8095 } 8096 8097 /** 8098 * qla4xxx_sysfs_ddb_set_param - Set parameter for firmware DDB entry 8099 * @fnode_sess: pointer to session attrs of flash ddb entry 8100 * @fnode_conn: pointer to connection attrs of flash ddb entry 8101 * @data: Parameters and their values to update 8102 * @len: len of data 8103 * 8104 * This sets the parameter of flash ddb entry and writes them to flash 8105 **/ 8106 static int 8107 qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, 8108 struct iscsi_bus_flash_conn *fnode_conn, 8109 void *data, int len) 8110 { 8111 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8112 struct scsi_qla_host *ha = to_qla_host(shost); 8113 struct iscsi_flashnode_param_info *fnode_param; 8114 struct ql4_chap_table chap_tbl; 8115 struct nlattr *attr; 8116 uint16_t chap_out_idx = INVALID_ENTRY; 8117 int rc = QLA_ERROR; 8118 uint32_t rem = len; 8119 8120 memset((void *)&chap_tbl, 0, sizeof(chap_tbl)); 8121 nla_for_each_attr(attr, data, len, rem) { 8122 if (nla_len(attr) < sizeof(*fnode_param)) { 8123 rc = -EINVAL; 8124 goto exit_set_param; 8125 } 8126 8127 fnode_param = nla_data(attr); 8128 8129 switch (fnode_param->param) { 8130 case ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6: 8131 fnode_conn->is_fw_assigned_ipv6 = fnode_param->value[0]; 8132 break; 8133 case ISCSI_FLASHNODE_PORTAL_TYPE: 8134 memcpy(fnode_sess->portal_type, fnode_param->value, 8135 strlen(fnode_sess->portal_type)); 8136 break; 8137 case ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE: 8138 fnode_sess->auto_snd_tgt_disable = 8139 fnode_param->value[0]; 8140 break; 8141 case ISCSI_FLASHNODE_DISCOVERY_SESS: 8142 fnode_sess->discovery_sess = fnode_param->value[0]; 8143 break; 8144 case ISCSI_FLASHNODE_ENTRY_EN: 8145 fnode_sess->entry_state = fnode_param->value[0]; 8146 break; 8147 case ISCSI_FLASHNODE_HDR_DGST_EN: 8148 fnode_conn->hdrdgst_en = fnode_param->value[0]; 8149 break; 8150 case ISCSI_FLASHNODE_DATA_DGST_EN: 8151 fnode_conn->datadgst_en = fnode_param->value[0]; 8152 break; 8153 case ISCSI_FLASHNODE_IMM_DATA_EN: 8154 fnode_sess->imm_data_en = fnode_param->value[0]; 8155 break; 8156 case ISCSI_FLASHNODE_INITIAL_R2T_EN: 8157 fnode_sess->initial_r2t_en = fnode_param->value[0]; 8158 break; 8159 case ISCSI_FLASHNODE_DATASEQ_INORDER: 8160 fnode_sess->dataseq_inorder_en = fnode_param->value[0]; 8161 break; 8162 case ISCSI_FLASHNODE_PDU_INORDER: 8163 fnode_sess->pdu_inorder_en = fnode_param->value[0]; 8164 break; 8165 case ISCSI_FLASHNODE_CHAP_AUTH_EN: 8166 fnode_sess->chap_auth_en = fnode_param->value[0]; 8167 /* Invalidate chap index if chap auth is disabled */ 8168 if (!fnode_sess->chap_auth_en) 8169 fnode_sess->chap_out_idx = INVALID_ENTRY; 8170 8171 break; 8172 case ISCSI_FLASHNODE_SNACK_REQ_EN: 8173 fnode_conn->snack_req_en = fnode_param->value[0]; 8174 break; 8175 case ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN: 8176 fnode_sess->discovery_logout_en = fnode_param->value[0]; 8177 break; 8178 case ISCSI_FLASHNODE_BIDI_CHAP_EN: 8179 fnode_sess->bidi_chap_en = fnode_param->value[0]; 8180 break; 8181 case ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL: 8182 fnode_sess->discovery_auth_optional = 8183 fnode_param->value[0]; 8184 break; 8185 case ISCSI_FLASHNODE_ERL: 8186 fnode_sess->erl = fnode_param->value[0]; 8187 break; 8188 case ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT: 8189 fnode_conn->tcp_timestamp_stat = fnode_param->value[0]; 8190 break; 8191 case ISCSI_FLASHNODE_TCP_NAGLE_DISABLE: 8192 fnode_conn->tcp_nagle_disable = fnode_param->value[0]; 8193 break; 8194 case ISCSI_FLASHNODE_TCP_WSF_DISABLE: 8195 fnode_conn->tcp_wsf_disable = fnode_param->value[0]; 8196 break; 8197 case ISCSI_FLASHNODE_TCP_TIMER_SCALE: 8198 fnode_conn->tcp_timer_scale = fnode_param->value[0]; 8199 break; 8200 case ISCSI_FLASHNODE_TCP_TIMESTAMP_EN: 8201 fnode_conn->tcp_timestamp_en = fnode_param->value[0]; 8202 break; 8203 case ISCSI_FLASHNODE_IP_FRAG_DISABLE: 8204 fnode_conn->fragment_disable = fnode_param->value[0]; 8205 break; 8206 case ISCSI_FLASHNODE_MAX_RECV_DLENGTH: 8207 fnode_conn->max_recv_dlength = 8208 *(unsigned *)fnode_param->value; 8209 break; 8210 case ISCSI_FLASHNODE_MAX_XMIT_DLENGTH: 8211 fnode_conn->max_xmit_dlength = 8212 *(unsigned *)fnode_param->value; 8213 break; 8214 case ISCSI_FLASHNODE_FIRST_BURST: 8215 fnode_sess->first_burst = 8216 *(unsigned *)fnode_param->value; 8217 break; 8218 case ISCSI_FLASHNODE_DEF_TIME2WAIT: 8219 fnode_sess->time2wait = *(uint16_t *)fnode_param->value; 8220 break; 8221 case ISCSI_FLASHNODE_DEF_TIME2RETAIN: 8222 fnode_sess->time2retain = 8223 *(uint16_t *)fnode_param->value; 8224 break; 8225 case ISCSI_FLASHNODE_MAX_R2T: 8226 fnode_sess->max_r2t = 8227 *(uint16_t *)fnode_param->value; 8228 break; 8229 case ISCSI_FLASHNODE_KEEPALIVE_TMO: 8230 fnode_conn->keepalive_timeout = 8231 *(uint16_t *)fnode_param->value; 8232 break; 8233 case ISCSI_FLASHNODE_ISID: 8234 memcpy(fnode_sess->isid, fnode_param->value, 8235 sizeof(fnode_sess->isid)); 8236 break; 8237 case ISCSI_FLASHNODE_TSID: 8238 fnode_sess->tsid = *(uint16_t *)fnode_param->value; 8239 break; 8240 case ISCSI_FLASHNODE_PORT: 8241 fnode_conn->port = *(uint16_t *)fnode_param->value; 8242 break; 8243 case ISCSI_FLASHNODE_MAX_BURST: 8244 fnode_sess->max_burst = *(unsigned *)fnode_param->value; 8245 break; 8246 case ISCSI_FLASHNODE_DEF_TASKMGMT_TMO: 8247 fnode_sess->default_taskmgmt_timeout = 8248 *(uint16_t *)fnode_param->value; 8249 break; 8250 case ISCSI_FLASHNODE_IPADDR: 8251 memcpy(fnode_conn->ipaddress, fnode_param->value, 8252 IPv6_ADDR_LEN); 8253 break; 8254 case ISCSI_FLASHNODE_ALIAS: 8255 rc = iscsi_switch_str_param(&fnode_sess->targetalias, 8256 (char *)fnode_param->value); 8257 break; 8258 case ISCSI_FLASHNODE_REDIRECT_IPADDR: 8259 memcpy(fnode_conn->redirect_ipaddr, fnode_param->value, 8260 IPv6_ADDR_LEN); 8261 break; 8262 case ISCSI_FLASHNODE_MAX_SEGMENT_SIZE: 8263 fnode_conn->max_segment_size = 8264 *(unsigned *)fnode_param->value; 8265 break; 8266 case ISCSI_FLASHNODE_LOCAL_PORT: 8267 fnode_conn->local_port = 8268 *(uint16_t *)fnode_param->value; 8269 break; 8270 case ISCSI_FLASHNODE_IPV4_TOS: 8271 fnode_conn->ipv4_tos = fnode_param->value[0]; 8272 break; 8273 case ISCSI_FLASHNODE_IPV6_TC: 8274 fnode_conn->ipv6_traffic_class = fnode_param->value[0]; 8275 break; 8276 case ISCSI_FLASHNODE_IPV6_FLOW_LABEL: 8277 fnode_conn->ipv6_flow_label = fnode_param->value[0]; 8278 break; 8279 case ISCSI_FLASHNODE_NAME: 8280 rc = iscsi_switch_str_param(&fnode_sess->targetname, 8281 (char *)fnode_param->value); 8282 break; 8283 case ISCSI_FLASHNODE_TPGT: 8284 fnode_sess->tpgt = *(uint16_t *)fnode_param->value; 8285 break; 8286 case ISCSI_FLASHNODE_LINK_LOCAL_IPV6: 8287 memcpy(fnode_conn->link_local_ipv6_addr, 8288 fnode_param->value, IPv6_ADDR_LEN); 8289 break; 8290 case ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX: 8291 fnode_sess->discovery_parent_idx = 8292 *(uint16_t *)fnode_param->value; 8293 break; 8294 case ISCSI_FLASHNODE_TCP_XMIT_WSF: 8295 fnode_conn->tcp_xmit_wsf = 8296 *(uint8_t *)fnode_param->value; 8297 break; 8298 case ISCSI_FLASHNODE_TCP_RECV_WSF: 8299 fnode_conn->tcp_recv_wsf = 8300 *(uint8_t *)fnode_param->value; 8301 break; 8302 case ISCSI_FLASHNODE_STATSN: 8303 fnode_conn->statsn = *(uint32_t *)fnode_param->value; 8304 break; 8305 case ISCSI_FLASHNODE_EXP_STATSN: 8306 fnode_conn->exp_statsn = 8307 *(uint32_t *)fnode_param->value; 8308 break; 8309 case ISCSI_FLASHNODE_CHAP_OUT_IDX: 8310 chap_out_idx = *(uint16_t *)fnode_param->value; 8311 if (!qla4xxx_get_uni_chap_at_index(ha, 8312 chap_tbl.name, 8313 chap_tbl.secret, 8314 chap_out_idx)) { 8315 fnode_sess->chap_out_idx = chap_out_idx; 8316 /* Enable chap auth if chap index is valid */ 8317 fnode_sess->chap_auth_en = QL4_PARAM_ENABLE; 8318 } 8319 break; 8320 default: 8321 ql4_printk(KERN_ERR, ha, 8322 "%s: No such sysfs attribute\n", __func__); 8323 rc = -ENOSYS; 8324 goto exit_set_param; 8325 } 8326 } 8327 8328 rc = qla4xxx_sysfs_ddb_apply(fnode_sess, fnode_conn); 8329 8330 exit_set_param: 8331 return rc; 8332 } 8333 8334 /** 8335 * qla4xxx_sysfs_ddb_delete - Delete firmware DDB entry 8336 * @fnode_sess: pointer to session attrs of flash ddb entry 8337 * 8338 * This invalidates the flash ddb entry at the given index 8339 **/ 8340 static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) 8341 { 8342 struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); 8343 struct scsi_qla_host *ha = to_qla_host(shost); 8344 uint32_t dev_db_start_offset; 8345 uint32_t dev_db_end_offset; 8346 struct dev_db_entry *fw_ddb_entry = NULL; 8347 dma_addr_t fw_ddb_entry_dma; 8348 uint16_t *ddb_cookie = NULL; 8349 size_t ddb_size = 0; 8350 void *pddb = NULL; 8351 int target_id; 8352 int rc = 0; 8353 8354 if (fnode_sess->is_boot_target) { 8355 rc = -EPERM; 8356 DEBUG2(ql4_printk(KERN_ERR, ha, 8357 "%s: Deletion of boot target entry is not permitted.\n", 8358 __func__)); 8359 goto exit_ddb_del; 8360 } 8361 8362 if (fnode_sess->flash_state == DEV_DB_NON_PERSISTENT) 8363 goto sysfs_ddb_del; 8364 8365 if (is_qla40XX(ha)) { 8366 dev_db_start_offset = FLASH_OFFSET_DB_INFO; 8367 dev_db_end_offset = FLASH_OFFSET_DB_END; 8368 dev_db_start_offset += (fnode_sess->target_id * 8369 sizeof(*fw_ddb_entry)); 8370 ddb_size = sizeof(*fw_ddb_entry); 8371 } else { 8372 dev_db_start_offset = FLASH_RAW_ACCESS_ADDR + 8373 (ha->hw.flt_region_ddb << 2); 8374 /* flt_ddb_size is DDB table size for both ports 8375 * so divide it by 2 to calculate the offset for second port 8376 */ 8377 if (ha->port_num == 1) 8378 dev_db_start_offset += (ha->hw.flt_ddb_size / 2); 8379 8380 dev_db_end_offset = dev_db_start_offset + 8381 (ha->hw.flt_ddb_size / 2); 8382 8383 dev_db_start_offset += (fnode_sess->target_id * 8384 sizeof(*fw_ddb_entry)); 8385 dev_db_start_offset += offsetof(struct dev_db_entry, cookie); 8386 8387 ddb_size = sizeof(*ddb_cookie); 8388 } 8389 8390 DEBUG2(ql4_printk(KERN_ERR, ha, "%s: start offset=%u, end offset=%u\n", 8391 __func__, dev_db_start_offset, dev_db_end_offset)); 8392 8393 if (dev_db_start_offset > dev_db_end_offset) { 8394 rc = -EIO; 8395 DEBUG2(ql4_printk(KERN_ERR, ha, "%s:Invalid DDB index %u\n", 8396 __func__, fnode_sess->target_id)); 8397 goto exit_ddb_del; 8398 } 8399 8400 pddb = dma_alloc_coherent(&ha->pdev->dev, ddb_size, 8401 &fw_ddb_entry_dma, GFP_KERNEL); 8402 if (!pddb) { 8403 rc = -ENOMEM; 8404 DEBUG2(ql4_printk(KERN_ERR, ha, 8405 "%s: Unable to allocate dma buffer\n", 8406 __func__)); 8407 goto exit_ddb_del; 8408 } 8409 8410 if (is_qla40XX(ha)) { 8411 fw_ddb_entry = pddb; 8412 memset(fw_ddb_entry, 0, ddb_size); 8413 ddb_cookie = &fw_ddb_entry->cookie; 8414 } else { 8415 ddb_cookie = pddb; 8416 } 8417 8418 /* invalidate the cookie */ 8419 *ddb_cookie = 0xFFEE; 8420 qla4xxx_set_flash(ha, fw_ddb_entry_dma, dev_db_start_offset, 8421 ddb_size, FLASH_OPT_RMW_COMMIT); 8422 8423 sysfs_ddb_del: 8424 target_id = fnode_sess->target_id; 8425 iscsi_destroy_flashnode_sess(fnode_sess); 8426 ql4_printk(KERN_INFO, ha, 8427 "%s: session and conn entries for flashnode %u of host %lu deleted\n", 8428 __func__, target_id, ha->host_no); 8429 exit_ddb_del: 8430 if (pddb) 8431 dma_free_coherent(&ha->pdev->dev, ddb_size, pddb, 8432 fw_ddb_entry_dma); 8433 return rc; 8434 } 8435 8436 /** 8437 * qla4xxx_sysfs_ddb_export - Create sysfs entries for firmware DDBs 8438 * @ha: pointer to adapter structure 8439 * 8440 * Export the firmware DDB for all send targets and normal targets to sysfs. 8441 **/ 8442 int qla4xxx_sysfs_ddb_export(struct scsi_qla_host *ha) 8443 { 8444 struct dev_db_entry *fw_ddb_entry = NULL; 8445 dma_addr_t fw_ddb_entry_dma; 8446 uint16_t max_ddbs; 8447 uint16_t idx = 0; 8448 int ret = QLA_SUCCESS; 8449 8450 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, 8451 sizeof(*fw_ddb_entry), 8452 &fw_ddb_entry_dma, GFP_KERNEL); 8453 if (!fw_ddb_entry) { 8454 DEBUG2(ql4_printk(KERN_ERR, ha, 8455 "%s: Unable to allocate dma buffer\n", 8456 __func__)); 8457 return -ENOMEM; 8458 } 8459 8460 max_ddbs = is_qla40XX(ha) ? MAX_PRST_DEV_DB_ENTRIES : 8461 MAX_DEV_DB_ENTRIES; 8462 8463 for (idx = 0; idx < max_ddbs; idx++) { 8464 if (qla4xxx_flashdb_by_index(ha, fw_ddb_entry, fw_ddb_entry_dma, 8465 idx)) 8466 continue; 8467 8468 ret = qla4xxx_sysfs_ddb_tgt_create(ha, fw_ddb_entry, &idx, 0); 8469 if (ret) { 8470 ret = -EIO; 8471 break; 8472 } 8473 } 8474 8475 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry, 8476 fw_ddb_entry_dma); 8477 8478 return ret; 8479 } 8480 8481 static void qla4xxx_sysfs_ddb_remove(struct scsi_qla_host *ha) 8482 { 8483 iscsi_destroy_all_flashnode(ha->host); 8484 } 8485 8486 /** 8487 * qla4xxx_build_ddb_list - Build ddb list and setup sessions 8488 * @ha: pointer to adapter structure 8489 * @is_reset: Is this init path or reset path 8490 * 8491 * Create a list of sendtargets (st) from firmware DDBs, issue send targets 8492 * using connection open, then create the list of normal targets (nt) 8493 * from firmware DDBs. Based on the list of nt setup session and connection 8494 * objects. 8495 **/ 8496 void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 8497 { 8498 uint16_t tmo = 0; 8499 struct list_head list_st, list_nt; 8500 struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 8501 unsigned long wtime; 8502 8503 if (!test_bit(AF_LINK_UP, &ha->flags)) { 8504 set_bit(AF_BUILD_DDB_LIST, &ha->flags); 8505 ha->is_reset = is_reset; 8506 return; 8507 } 8508 8509 INIT_LIST_HEAD(&list_st); 8510 INIT_LIST_HEAD(&list_nt); 8511 8512 qla4xxx_build_st_list(ha, &list_st); 8513 8514 /* Before issuing conn open mbox, ensure all IPs states are configured 8515 * Note, conn open fails if IPs are not configured 8516 */ 8517 qla4xxx_wait_for_ip_configuration(ha); 8518 8519 /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 8520 list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 8521 qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 8522 } 8523 8524 /* Wait to ensure all sendtargets are done for min 12 sec wait */ 8525 tmo = ((ha->def_timeout > LOGIN_TOV) && 8526 (ha->def_timeout < LOGIN_TOV * 10) ? 8527 ha->def_timeout : LOGIN_TOV); 8528 8529 DEBUG2(ql4_printk(KERN_INFO, ha, 8530 "Default time to wait for build ddb %d\n", tmo)); 8531 8532 wtime = jiffies + (HZ * tmo); 8533 do { 8534 if (list_empty(&list_st)) 8535 break; 8536 8537 qla4xxx_remove_failed_ddb(ha, &list_st); 8538 schedule_timeout_uninterruptible(HZ / 10); 8539 } while (time_after(wtime, jiffies)); 8540 8541 8542 qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset); 8543 8544 qla4xxx_free_ddb_list(&list_st); 8545 qla4xxx_free_ddb_list(&list_nt); 8546 8547 qla4xxx_free_ddb_index(ha); 8548 } 8549 8550 /** 8551 * qla4xxx_wait_login_resp_boot_tgt - Wait for iSCSI boot target login 8552 * response. 8553 * @ha: pointer to adapter structure 8554 * 8555 * When the boot entry is normal iSCSI target then DF_BOOT_TGT flag will be 8556 * set in DDB and we will wait for login response of boot targets during 8557 * probe. 8558 **/ 8559 static void qla4xxx_wait_login_resp_boot_tgt(struct scsi_qla_host *ha) 8560 { 8561 struct ddb_entry *ddb_entry; 8562 struct dev_db_entry *fw_ddb_entry = NULL; 8563 dma_addr_t fw_ddb_entry_dma; 8564 unsigned long wtime; 8565 uint32_t ddb_state; 8566 int max_ddbs, idx, ret; 8567 8568 max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 8569 MAX_DEV_DB_ENTRIES; 8570 8571 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8572 &fw_ddb_entry_dma, GFP_KERNEL); 8573 if (!fw_ddb_entry) { 8574 ql4_printk(KERN_ERR, ha, 8575 "%s: Unable to allocate dma buffer\n", __func__); 8576 goto exit_login_resp; 8577 } 8578 8579 wtime = jiffies + (HZ * BOOT_LOGIN_RESP_TOV); 8580 8581 for (idx = 0; idx < max_ddbs; idx++) { 8582 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8583 if (ddb_entry == NULL) 8584 continue; 8585 8586 if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) { 8587 DEBUG2(ql4_printk(KERN_INFO, ha, 8588 "%s: DDB index [%d]\n", __func__, 8589 ddb_entry->fw_ddb_index)); 8590 do { 8591 ret = qla4xxx_get_fwddb_entry(ha, 8592 ddb_entry->fw_ddb_index, 8593 fw_ddb_entry, fw_ddb_entry_dma, 8594 NULL, NULL, &ddb_state, NULL, 8595 NULL, NULL); 8596 if (ret == QLA_ERROR) 8597 goto exit_login_resp; 8598 8599 if ((ddb_state == DDB_DS_SESSION_ACTIVE) || 8600 (ddb_state == DDB_DS_SESSION_FAILED)) 8601 break; 8602 8603 schedule_timeout_uninterruptible(HZ); 8604 8605 } while ((time_after(wtime, jiffies))); 8606 8607 if (!time_after(wtime, jiffies)) { 8608 DEBUG2(ql4_printk(KERN_INFO, ha, 8609 "%s: Login response wait timer expired\n", 8610 __func__)); 8611 goto exit_login_resp; 8612 } 8613 } 8614 } 8615 8616 exit_login_resp: 8617 if (fw_ddb_entry) 8618 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8619 fw_ddb_entry, fw_ddb_entry_dma); 8620 } 8621 8622 /** 8623 * qla4xxx_probe_adapter - callback function to probe HBA 8624 * @pdev: pointer to pci_dev structure 8625 * @ent: pointer to pci_device entry 8626 * 8627 * This routine will probe for Qlogic 4xxx iSCSI host adapters. 8628 * It returns zero if successful. It also initializes all data necessary for 8629 * the driver. 8630 **/ 8631 static int qla4xxx_probe_adapter(struct pci_dev *pdev, 8632 const struct pci_device_id *ent) 8633 { 8634 int ret = -ENODEV, status; 8635 struct Scsi_Host *host; 8636 struct scsi_qla_host *ha; 8637 uint8_t init_retry_count = 0; 8638 char buf[34]; 8639 struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 8640 uint32_t dev_state; 8641 8642 if (pci_enable_device(pdev)) 8643 return -1; 8644 8645 host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 8646 if (host == NULL) { 8647 printk(KERN_WARNING 8648 "qla4xxx: Couldn't allocate host from scsi layer!\n"); 8649 goto probe_disable_device; 8650 } 8651 8652 /* Clear our data area */ 8653 ha = to_qla_host(host); 8654 memset(ha, 0, sizeof(*ha)); 8655 8656 /* Save the information from PCI BIOS. */ 8657 ha->pdev = pdev; 8658 ha->host = host; 8659 ha->host_no = host->host_no; 8660 ha->func_num = PCI_FUNC(ha->pdev->devfn); 8661 8662 /* Setup Runtime configurable options */ 8663 if (is_qla8022(ha)) { 8664 ha->isp_ops = &qla4_82xx_isp_ops; 8665 ha->reg_tbl = (uint32_t *) qla4_82xx_reg_tbl; 8666 ha->qdr_sn_window = -1; 8667 ha->ddr_mn_window = -1; 8668 ha->curr_window = 255; 8669 nx_legacy_intr = &legacy_intr[ha->func_num]; 8670 ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 8671 ha->nx_legacy_intr.tgt_status_reg = 8672 nx_legacy_intr->tgt_status_reg; 8673 ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 8674 ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 8675 } else if (is_qla8032(ha) || is_qla8042(ha)) { 8676 ha->isp_ops = &qla4_83xx_isp_ops; 8677 ha->reg_tbl = (uint32_t *)qla4_83xx_reg_tbl; 8678 } else { 8679 ha->isp_ops = &qla4xxx_isp_ops; 8680 } 8681 8682 if (is_qla80XX(ha)) { 8683 rwlock_init(&ha->hw_lock); 8684 ha->pf_bit = ha->func_num << 16; 8685 /* Set EEH reset type to fundamental if required by hba */ 8686 pdev->needs_freset = 1; 8687 } 8688 8689 /* Configure PCI I/O space. */ 8690 ret = ha->isp_ops->iospace_config(ha); 8691 if (ret) 8692 goto probe_failed_ioconfig; 8693 8694 ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 8695 pdev->device, pdev->irq, ha->reg); 8696 8697 qla4xxx_config_dma_addressing(ha); 8698 8699 /* Initialize lists and spinlocks. */ 8700 INIT_LIST_HEAD(&ha->free_srb_q); 8701 8702 mutex_init(&ha->mbox_sem); 8703 mutex_init(&ha->chap_sem); 8704 init_completion(&ha->mbx_intr_comp); 8705 init_completion(&ha->disable_acb_comp); 8706 init_completion(&ha->idc_comp); 8707 init_completion(&ha->link_up_comp); 8708 8709 spin_lock_init(&ha->hardware_lock); 8710 spin_lock_init(&ha->work_lock); 8711 8712 /* Initialize work list */ 8713 INIT_LIST_HEAD(&ha->work_list); 8714 8715 /* Allocate dma buffers */ 8716 if (qla4xxx_mem_alloc(ha)) { 8717 ql4_printk(KERN_WARNING, ha, 8718 "[ERROR] Failed to allocate memory for adapter\n"); 8719 8720 ret = -ENOMEM; 8721 goto probe_failed; 8722 } 8723 8724 host->cmd_per_lun = 3; 8725 host->max_channel = 0; 8726 host->max_lun = MAX_LUNS - 1; 8727 host->max_id = MAX_TARGETS; 8728 host->max_cmd_len = IOCB_MAX_CDB_LEN; 8729 host->can_queue = MAX_SRBS ; 8730 host->transportt = qla4xxx_scsi_transport; 8731 8732 pci_set_drvdata(pdev, ha); 8733 8734 ret = scsi_add_host(host, &pdev->dev); 8735 if (ret) 8736 goto probe_failed; 8737 8738 if (is_qla80XX(ha)) 8739 qla4_8xxx_get_flash_info(ha); 8740 8741 if (is_qla8032(ha) || is_qla8042(ha)) { 8742 qla4_83xx_read_reset_template(ha); 8743 /* 8744 * NOTE: If ql4dontresethba==1, set IDC_CTRL DONTRESET_BIT0. 8745 * If DONRESET_BIT0 is set, drivers should not set dev_state 8746 * to NEED_RESET. But if NEED_RESET is set, drivers should 8747 * should honor the reset. 8748 */ 8749 if (ql4xdontresethba == 1) 8750 qla4_83xx_set_idc_dontreset(ha); 8751 } 8752 8753 /* 8754 * Initialize the Host adapter request/response queues and 8755 * firmware 8756 * NOTE: interrupts enabled upon successful completion 8757 */ 8758 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8759 8760 /* Dont retry adapter initialization if IRQ allocation failed */ 8761 if (is_qla80XX(ha) && (status == QLA_ERROR)) 8762 goto skip_retry_init; 8763 8764 while ((!test_bit(AF_ONLINE, &ha->flags)) && 8765 init_retry_count++ < MAX_INIT_RETRIES) { 8766 8767 if (is_qla80XX(ha)) { 8768 ha->isp_ops->idc_lock(ha); 8769 dev_state = qla4_8xxx_rd_direct(ha, 8770 QLA8XXX_CRB_DEV_STATE); 8771 ha->isp_ops->idc_unlock(ha); 8772 if (dev_state == QLA8XXX_DEV_FAILED) { 8773 ql4_printk(KERN_WARNING, ha, "%s: don't retry " 8774 "initialize adapter. H/W is in failed state\n", 8775 __func__); 8776 break; 8777 } 8778 } 8779 DEBUG2(printk("scsi: %s: retrying adapter initialization " 8780 "(%d)\n", __func__, init_retry_count)); 8781 8782 if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 8783 continue; 8784 8785 status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 8786 if (is_qla80XX(ha) && (status == QLA_ERROR)) { 8787 if (qla4_8xxx_check_init_adapter_retry(ha) == QLA_ERROR) 8788 goto skip_retry_init; 8789 } 8790 } 8791 8792 skip_retry_init: 8793 if (!test_bit(AF_ONLINE, &ha->flags)) { 8794 ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 8795 8796 if ((is_qla8022(ha) && ql4xdontresethba) || 8797 ((is_qla8032(ha) || is_qla8042(ha)) && 8798 qla4_83xx_idc_dontreset(ha))) { 8799 /* Put the device in failed state. */ 8800 DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 8801 ha->isp_ops->idc_lock(ha); 8802 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 8803 QLA8XXX_DEV_FAILED); 8804 ha->isp_ops->idc_unlock(ha); 8805 } 8806 ret = -ENODEV; 8807 goto remove_host; 8808 } 8809 8810 /* Startup the kernel thread for this host adapter. */ 8811 DEBUG2(printk("scsi: %s: Starting kernel thread for " 8812 "qla4xxx_dpc\n", __func__)); 8813 sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 8814 ha->dpc_thread = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, buf); 8815 if (!ha->dpc_thread) { 8816 ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 8817 ret = -ENODEV; 8818 goto remove_host; 8819 } 8820 INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 8821 8822 ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1, 8823 ha->host_no); 8824 if (!ha->task_wq) { 8825 ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 8826 ret = -ENODEV; 8827 goto remove_host; 8828 } 8829 8830 /* 8831 * For ISP-8XXX, request_irqs is called in qla4_8xxx_load_risc 8832 * (which is called indirectly by qla4xxx_initialize_adapter), 8833 * so that irqs will be registered after crbinit but before 8834 * mbx_intr_enable. 8835 */ 8836 if (is_qla40XX(ha)) { 8837 ret = qla4xxx_request_irqs(ha); 8838 if (ret) { 8839 ql4_printk(KERN_WARNING, ha, "Failed to reserve " 8840 "interrupt %d already in use.\n", pdev->irq); 8841 goto remove_host; 8842 } 8843 } 8844 8845 pci_save_state(ha->pdev); 8846 ha->isp_ops->enable_intrs(ha); 8847 8848 /* Start timer thread. */ 8849 qla4xxx_start_timer(ha, 1); 8850 8851 set_bit(AF_INIT_DONE, &ha->flags); 8852 8853 qla4_8xxx_alloc_sysfs_attr(ha); 8854 8855 printk(KERN_INFO 8856 " QLogic iSCSI HBA Driver version: %s\n" 8857 " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 8858 qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 8859 ha->host_no, ha->fw_info.fw_major, ha->fw_info.fw_minor, 8860 ha->fw_info.fw_patch, ha->fw_info.fw_build); 8861 8862 /* Set the driver version */ 8863 if (is_qla80XX(ha)) 8864 qla4_8xxx_set_param(ha, SET_DRVR_VERSION); 8865 8866 if (qla4xxx_setup_boot_info(ha)) 8867 ql4_printk(KERN_ERR, ha, 8868 "%s: No iSCSI boot target configured\n", __func__); 8869 8870 set_bit(DPC_SYSFS_DDB_EXPORT, &ha->dpc_flags); 8871 /* Perform the build ddb list and login to each */ 8872 qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 8873 iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 8874 qla4xxx_wait_login_resp_boot_tgt(ha); 8875 8876 qla4xxx_create_chap_list(ha); 8877 8878 qla4xxx_create_ifaces(ha); 8879 return 0; 8880 8881 remove_host: 8882 scsi_remove_host(ha->host); 8883 8884 probe_failed: 8885 qla4xxx_free_adapter(ha); 8886 8887 probe_failed_ioconfig: 8888 scsi_host_put(ha->host); 8889 8890 probe_disable_device: 8891 pci_disable_device(pdev); 8892 8893 return ret; 8894 } 8895 8896 /** 8897 * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 8898 * @ha: pointer to adapter structure 8899 * 8900 * Mark the other ISP-4xxx port to indicate that the driver is being removed, 8901 * so that the other port will not re-initialize while in the process of 8902 * removing the ha due to driver unload or hba hotplug. 8903 **/ 8904 static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 8905 { 8906 struct scsi_qla_host *other_ha = NULL; 8907 struct pci_dev *other_pdev = NULL; 8908 int fn = ISP4XXX_PCI_FN_2; 8909 8910 /*iscsi function numbers for ISP4xxx is 1 and 3*/ 8911 if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 8912 fn = ISP4XXX_PCI_FN_1; 8913 8914 other_pdev = 8915 pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 8916 ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 8917 fn)); 8918 8919 /* Get other_ha if other_pdev is valid and state is enable*/ 8920 if (other_pdev) { 8921 if (atomic_read(&other_pdev->enable_cnt)) { 8922 other_ha = pci_get_drvdata(other_pdev); 8923 if (other_ha) { 8924 set_bit(AF_HA_REMOVAL, &other_ha->flags); 8925 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 8926 "Prevent %s reinit\n", __func__, 8927 dev_name(&other_ha->pdev->dev))); 8928 } 8929 } 8930 pci_dev_put(other_pdev); 8931 } 8932 } 8933 8934 static void qla4xxx_destroy_ddb(struct scsi_qla_host *ha, 8935 struct ddb_entry *ddb_entry) 8936 { 8937 struct dev_db_entry *fw_ddb_entry = NULL; 8938 dma_addr_t fw_ddb_entry_dma; 8939 unsigned long wtime; 8940 uint32_t ddb_state; 8941 int options; 8942 int status; 8943 8944 options = LOGOUT_OPTION_CLOSE_SESSION; 8945 if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) { 8946 ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 8947 goto clear_ddb; 8948 } 8949 8950 fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8951 &fw_ddb_entry_dma, GFP_KERNEL); 8952 if (!fw_ddb_entry) { 8953 ql4_printk(KERN_ERR, ha, 8954 "%s: Unable to allocate dma buffer\n", __func__); 8955 goto clear_ddb; 8956 } 8957 8958 wtime = jiffies + (HZ * LOGOUT_TOV); 8959 do { 8960 status = qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, 8961 fw_ddb_entry, fw_ddb_entry_dma, 8962 NULL, NULL, &ddb_state, NULL, 8963 NULL, NULL); 8964 if (status == QLA_ERROR) 8965 goto free_ddb; 8966 8967 if ((ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) || 8968 (ddb_state == DDB_DS_SESSION_FAILED)) 8969 goto free_ddb; 8970 8971 schedule_timeout_uninterruptible(HZ); 8972 } while ((time_after(wtime, jiffies))); 8973 8974 free_ddb: 8975 dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 8976 fw_ddb_entry, fw_ddb_entry_dma); 8977 clear_ddb: 8978 qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 8979 } 8980 8981 static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 8982 { 8983 struct ddb_entry *ddb_entry; 8984 int idx; 8985 8986 for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 8987 8988 ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 8989 if ((ddb_entry != NULL) && 8990 (ddb_entry->ddb_type == FLASH_DDB)) { 8991 8992 qla4xxx_destroy_ddb(ha, ddb_entry); 8993 /* 8994 * we have decremented the reference count of the driver 8995 * when we setup the session to have the driver unload 8996 * to be seamless without actually destroying the 8997 * session 8998 **/ 8999 try_module_get(qla4xxx_iscsi_transport.owner); 9000 iscsi_destroy_endpoint(ddb_entry->conn->ep); 9001 qla4xxx_free_ddb(ha, ddb_entry); 9002 iscsi_session_teardown(ddb_entry->sess); 9003 } 9004 } 9005 } 9006 /** 9007 * qla4xxx_remove_adapter - callback function to remove adapter. 9008 * @pdev: PCI device pointer 9009 **/ 9010 static void qla4xxx_remove_adapter(struct pci_dev *pdev) 9011 { 9012 struct scsi_qla_host *ha; 9013 9014 /* 9015 * If the PCI device is disabled then it means probe_adapter had 9016 * failed and resources already cleaned up on probe_adapter exit. 9017 */ 9018 if (!pci_is_enabled(pdev)) 9019 return; 9020 9021 ha = pci_get_drvdata(pdev); 9022 9023 if (is_qla40XX(ha)) 9024 qla4xxx_prevent_other_port_reinit(ha); 9025 9026 /* destroy iface from sysfs */ 9027 qla4xxx_destroy_ifaces(ha); 9028 9029 if ((!ql4xdisablesysfsboot) && ha->boot_kset) 9030 iscsi_boot_destroy_kset(ha->boot_kset); 9031 9032 qla4xxx_destroy_fw_ddb_session(ha); 9033 qla4_8xxx_free_sysfs_attr(ha); 9034 9035 qla4xxx_sysfs_ddb_remove(ha); 9036 scsi_remove_host(ha->host); 9037 9038 qla4xxx_free_adapter(ha); 9039 9040 scsi_host_put(ha->host); 9041 9042 pci_disable_device(pdev); 9043 } 9044 9045 /** 9046 * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 9047 * @ha: HA context 9048 */ 9049 static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 9050 { 9051 /* Update our PCI device dma_mask for full 64 bit mask */ 9052 if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) { 9053 dev_dbg(&ha->pdev->dev, 9054 "Failed to set 64 bit PCI consistent mask; " 9055 "using 32 bit.\n"); 9056 dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(32)); 9057 } 9058 } 9059 9060 static int qla4xxx_sdev_init(struct scsi_device *sdev) 9061 { 9062 struct iscsi_cls_session *cls_sess; 9063 struct iscsi_session *sess; 9064 struct ddb_entry *ddb; 9065 int queue_depth = QL4_DEF_QDEPTH; 9066 9067 cls_sess = starget_to_session(sdev->sdev_target); 9068 sess = cls_sess->dd_data; 9069 ddb = sess->dd_data; 9070 9071 sdev->hostdata = ddb; 9072 9073 if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 9074 queue_depth = ql4xmaxqdepth; 9075 9076 scsi_change_queue_depth(sdev, queue_depth); 9077 return 0; 9078 } 9079 9080 /** 9081 * qla4xxx_del_from_active_array - returns an active srb 9082 * @ha: Pointer to host adapter structure. 9083 * @index: index into the active_array 9084 * 9085 * This routine removes and returns the srb at the specified index 9086 **/ 9087 struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 9088 uint32_t index) 9089 { 9090 struct srb *srb = NULL; 9091 struct scsi_cmnd *cmd = NULL; 9092 9093 cmd = scsi_host_find_tag(ha->host, index); 9094 if (!cmd) 9095 return srb; 9096 9097 srb = qla4xxx_cmd_priv(cmd)->srb; 9098 if (!srb) 9099 return srb; 9100 9101 /* update counters */ 9102 if (srb->flags & SRB_DMA_VALID) { 9103 ha->iocb_cnt -= srb->iocb_cnt; 9104 if (srb->cmd) 9105 srb->cmd->host_scribble = 9106 (unsigned char *)(unsigned long) MAX_SRBS; 9107 } 9108 return srb; 9109 } 9110 9111 /** 9112 * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 9113 * @ha: Pointer to host adapter structure. 9114 * @cmd: Scsi Command to wait on. 9115 * 9116 * This routine waits for the command to be returned by the Firmware 9117 * for some max time. 9118 **/ 9119 static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 9120 struct scsi_cmnd *cmd) 9121 { 9122 int done = 0; 9123 struct srb *rp; 9124 uint32_t max_wait_time = EH_WAIT_CMD_TOV; 9125 int ret = SUCCESS; 9126 9127 /* Dont wait on command if PCI error is being handled 9128 * by PCI AER driver 9129 */ 9130 if (unlikely(pci_channel_offline(ha->pdev)) || 9131 (test_bit(AF_EEH_BUSY, &ha->flags))) { 9132 ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 9133 ha->host_no, __func__); 9134 return ret; 9135 } 9136 9137 do { 9138 /* Checking to see if its returned to OS */ 9139 rp = qla4xxx_cmd_priv(cmd)->srb; 9140 if (rp == NULL) { 9141 done++; 9142 break; 9143 } 9144 9145 msleep(2000); 9146 } while (max_wait_time--); 9147 9148 return done; 9149 } 9150 9151 /** 9152 * qla4xxx_wait_for_hba_online - waits for HBA to come online 9153 * @ha: Pointer to host adapter structure 9154 **/ 9155 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 9156 { 9157 unsigned long wait_online; 9158 9159 wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 9160 while (time_before(jiffies, wait_online)) { 9161 9162 if (adapter_up(ha)) 9163 return QLA_SUCCESS; 9164 9165 msleep(2000); 9166 } 9167 9168 return QLA_ERROR; 9169 } 9170 9171 /** 9172 * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 9173 * @ha: pointer to HBA 9174 * @stgt: pointer to SCSI target 9175 * @sdev: pointer to SCSI device 9176 * 9177 * This function waits for all outstanding commands to a lun to complete. It 9178 * returns 0 if all pending commands are returned and 1 otherwise. 9179 **/ 9180 static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 9181 struct scsi_target *stgt, 9182 struct scsi_device *sdev) 9183 { 9184 int cnt; 9185 int status = 0; 9186 struct scsi_cmnd *cmd; 9187 9188 /* 9189 * Waiting for all commands for the designated target or dev 9190 * in the active array 9191 */ 9192 for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 9193 cmd = scsi_host_find_tag(ha->host, cnt); 9194 if (cmd && stgt == scsi_target(cmd->device) && 9195 (!sdev || sdev == cmd->device)) { 9196 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9197 status++; 9198 break; 9199 } 9200 } 9201 } 9202 return status; 9203 } 9204 9205 /** 9206 * qla4xxx_eh_abort - callback for abort task. 9207 * @cmd: Pointer to Linux's SCSI command structure 9208 * 9209 * This routine is called by the Linux OS to abort the specified 9210 * command. 9211 **/ 9212 static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 9213 { 9214 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9215 unsigned int id = cmd->device->id; 9216 uint64_t lun = cmd->device->lun; 9217 unsigned long flags; 9218 struct srb *srb = NULL; 9219 int ret = SUCCESS; 9220 int wait = 0; 9221 int rval; 9222 9223 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Abort command issued cmd=%p, cdb=0x%x\n", 9224 ha->host_no, id, lun, cmd, cmd->cmnd[0]); 9225 9226 rval = qla4xxx_isp_check_reg(ha); 9227 if (rval != QLA_SUCCESS) { 9228 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9229 return FAILED; 9230 } 9231 9232 spin_lock_irqsave(&ha->hardware_lock, flags); 9233 srb = qla4xxx_cmd_priv(cmd)->srb; 9234 if (!srb) { 9235 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9236 ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%llu: Specified command has already completed.\n", 9237 ha->host_no, id, lun); 9238 return SUCCESS; 9239 } 9240 kref_get(&srb->srb_ref); 9241 spin_unlock_irqrestore(&ha->hardware_lock, flags); 9242 9243 if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 9244 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx failed.\n", 9245 ha->host_no, id, lun)); 9246 ret = FAILED; 9247 } else { 9248 DEBUG3(printk("scsi%ld:%d:%llu: Abort_task mbx success.\n", 9249 ha->host_no, id, lun)); 9250 wait = 1; 9251 } 9252 9253 kref_put(&srb->srb_ref, qla4xxx_srb_compl); 9254 9255 /* Wait for command to complete */ 9256 if (wait) { 9257 if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 9258 DEBUG2(printk("scsi%ld:%d:%llu: Abort handler timed out\n", 9259 ha->host_no, id, lun)); 9260 ret = FAILED; 9261 } 9262 } 9263 9264 ql4_printk(KERN_INFO, ha, 9265 "scsi%ld:%d:%llu: Abort command - %s\n", 9266 ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 9267 9268 return ret; 9269 } 9270 9271 /** 9272 * qla4xxx_eh_device_reset - callback for target reset. 9273 * @cmd: Pointer to Linux's SCSI command structure 9274 * 9275 * This routine is called by the Linux OS to reset all luns on the 9276 * specified target. 9277 **/ 9278 static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 9279 { 9280 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9281 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9282 int ret = FAILED, stat; 9283 int rval; 9284 9285 if (!ddb_entry) 9286 return ret; 9287 9288 ret = iscsi_block_scsi_eh(cmd); 9289 if (ret) 9290 return ret; 9291 ret = FAILED; 9292 9293 ql4_printk(KERN_INFO, ha, 9294 "scsi%ld:%d:%d:%llu: DEVICE RESET ISSUED.\n", ha->host_no, 9295 cmd->device->channel, cmd->device->id, cmd->device->lun); 9296 9297 DEBUG2(printk(KERN_INFO 9298 "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 9299 "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 9300 cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ, 9301 ha->dpc_flags, cmd->result, cmd->allowed)); 9302 9303 rval = qla4xxx_isp_check_reg(ha); 9304 if (rval != QLA_SUCCESS) { 9305 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9306 return FAILED; 9307 } 9308 9309 /* FIXME: wait for hba to go online */ 9310 stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 9311 if (stat != QLA_SUCCESS) { 9312 ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 9313 goto eh_dev_reset_done; 9314 } 9315 9316 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9317 cmd->device)) { 9318 ql4_printk(KERN_INFO, ha, 9319 "DEVICE RESET FAILED - waiting for " 9320 "commands.\n"); 9321 goto eh_dev_reset_done; 9322 } 9323 9324 /* Send marker. */ 9325 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9326 MM_LUN_RESET) != QLA_SUCCESS) 9327 goto eh_dev_reset_done; 9328 9329 ql4_printk(KERN_INFO, ha, 9330 "scsi(%ld:%d:%d:%llu): DEVICE RESET SUCCEEDED.\n", 9331 ha->host_no, cmd->device->channel, cmd->device->id, 9332 cmd->device->lun); 9333 9334 ret = SUCCESS; 9335 9336 eh_dev_reset_done: 9337 9338 return ret; 9339 } 9340 9341 /** 9342 * qla4xxx_eh_target_reset - callback for target reset. 9343 * @cmd: Pointer to Linux's SCSI command structure 9344 * 9345 * This routine is called by the Linux OS to reset the target. 9346 **/ 9347 static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 9348 { 9349 struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 9350 struct ddb_entry *ddb_entry = cmd->device->hostdata; 9351 int stat, ret; 9352 int rval; 9353 9354 if (!ddb_entry) 9355 return FAILED; 9356 9357 ret = iscsi_block_scsi_eh(cmd); 9358 if (ret) 9359 return ret; 9360 9361 starget_printk(KERN_INFO, scsi_target(cmd->device), 9362 "WARM TARGET RESET ISSUED.\n"); 9363 9364 DEBUG2(printk(KERN_INFO 9365 "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 9366 "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 9367 ha->host_no, cmd, jiffies, scsi_cmd_to_rq(cmd)->timeout / HZ, 9368 ha->dpc_flags, cmd->result, cmd->allowed)); 9369 9370 rval = qla4xxx_isp_check_reg(ha); 9371 if (rval != QLA_SUCCESS) { 9372 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9373 return FAILED; 9374 } 9375 9376 stat = qla4xxx_reset_target(ha, ddb_entry); 9377 if (stat != QLA_SUCCESS) { 9378 starget_printk(KERN_INFO, scsi_target(cmd->device), 9379 "WARM TARGET RESET FAILED.\n"); 9380 return FAILED; 9381 } 9382 9383 if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 9384 NULL)) { 9385 starget_printk(KERN_INFO, scsi_target(cmd->device), 9386 "WARM TARGET DEVICE RESET FAILED - " 9387 "waiting for commands.\n"); 9388 return FAILED; 9389 } 9390 9391 /* Send marker. */ 9392 if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 9393 MM_TGT_WARM_RESET) != QLA_SUCCESS) { 9394 starget_printk(KERN_INFO, scsi_target(cmd->device), 9395 "WARM TARGET DEVICE RESET FAILED - " 9396 "marker iocb failed.\n"); 9397 return FAILED; 9398 } 9399 9400 starget_printk(KERN_INFO, scsi_target(cmd->device), 9401 "WARM TARGET RESET SUCCEEDED.\n"); 9402 return SUCCESS; 9403 } 9404 9405 /** 9406 * qla4xxx_is_eh_active - check if error handler is running 9407 * @shost: Pointer to SCSI Host struct 9408 * 9409 * This routine finds that if reset host is called in EH 9410 * scenario or from some application like sg_reset 9411 **/ 9412 static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 9413 { 9414 if (shost->shost_state == SHOST_RECOVERY) 9415 return 1; 9416 return 0; 9417 } 9418 9419 /** 9420 * qla4xxx_eh_host_reset - kernel callback 9421 * @cmd: Pointer to Linux's SCSI command structure 9422 * 9423 * This routine is invoked by the Linux kernel to perform fatal error 9424 * recovery on the specified adapter. 9425 **/ 9426 static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 9427 { 9428 int return_status = FAILED; 9429 struct scsi_qla_host *ha; 9430 int rval; 9431 9432 ha = to_qla_host(cmd->device->host); 9433 9434 rval = qla4xxx_isp_check_reg(ha); 9435 if (rval != QLA_SUCCESS) { 9436 ql4_printk(KERN_INFO, ha, "PCI/Register disconnect, exiting.\n"); 9437 return FAILED; 9438 } 9439 9440 if ((is_qla8032(ha) || is_qla8042(ha)) && ql4xdontresethba) 9441 qla4_83xx_set_idc_dontreset(ha); 9442 9443 /* 9444 * For ISP8324 and ISP8042, if IDC_CTRL DONTRESET_BIT0 is set by other 9445 * protocol drivers, we should not set device_state to NEED_RESET 9446 */ 9447 if (ql4xdontresethba || 9448 ((is_qla8032(ha) || is_qla8042(ha)) && 9449 qla4_83xx_idc_dontreset(ha))) { 9450 DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 9451 ha->host_no, __func__)); 9452 9453 /* Clear outstanding srb in queues */ 9454 if (qla4xxx_is_eh_active(cmd->device->host)) 9455 qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 9456 9457 return FAILED; 9458 } 9459 9460 ql4_printk(KERN_INFO, ha, 9461 "scsi(%ld:%d:%d:%llu): HOST RESET ISSUED.\n", ha->host_no, 9462 cmd->device->channel, cmd->device->id, cmd->device->lun); 9463 9464 if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 9465 DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 9466 "DEAD.\n", ha->host_no, cmd->device->channel, 9467 __func__)); 9468 9469 return FAILED; 9470 } 9471 9472 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9473 if (is_qla80XX(ha)) 9474 set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 9475 else 9476 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9477 } 9478 9479 if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 9480 return_status = SUCCESS; 9481 9482 ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 9483 return_status == FAILED ? "FAILED" : "SUCCEEDED"); 9484 9485 return return_status; 9486 } 9487 9488 static int qla4xxx_context_reset(struct scsi_qla_host *ha) 9489 { 9490 uint32_t mbox_cmd[MBOX_REG_COUNT]; 9491 uint32_t mbox_sts[MBOX_REG_COUNT]; 9492 struct addr_ctrl_blk_def *acb = NULL; 9493 uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 9494 int rval = QLA_SUCCESS; 9495 dma_addr_t acb_dma; 9496 9497 acb = dma_alloc_coherent(&ha->pdev->dev, 9498 sizeof(struct addr_ctrl_blk_def), 9499 &acb_dma, GFP_KERNEL); 9500 if (!acb) { 9501 ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 9502 __func__); 9503 rval = -ENOMEM; 9504 goto exit_port_reset; 9505 } 9506 9507 memset(acb, 0, acb_len); 9508 9509 rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 9510 if (rval != QLA_SUCCESS) { 9511 rval = -EIO; 9512 goto exit_free_acb; 9513 } 9514 9515 rval = qla4xxx_disable_acb(ha); 9516 if (rval != QLA_SUCCESS) { 9517 rval = -EIO; 9518 goto exit_free_acb; 9519 } 9520 9521 wait_for_completion_timeout(&ha->disable_acb_comp, 9522 DISABLE_ACB_TOV * HZ); 9523 9524 rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 9525 if (rval != QLA_SUCCESS) { 9526 rval = -EIO; 9527 goto exit_free_acb; 9528 } 9529 9530 exit_free_acb: 9531 dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 9532 acb, acb_dma); 9533 exit_port_reset: 9534 DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 9535 rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 9536 return rval; 9537 } 9538 9539 static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 9540 { 9541 struct scsi_qla_host *ha = to_qla_host(shost); 9542 int rval = QLA_SUCCESS; 9543 uint32_t idc_ctrl; 9544 9545 if (ql4xdontresethba) { 9546 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 9547 __func__)); 9548 rval = -EPERM; 9549 goto exit_host_reset; 9550 } 9551 9552 if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 9553 goto recover_adapter; 9554 9555 switch (reset_type) { 9556 case SCSI_ADAPTER_RESET: 9557 set_bit(DPC_RESET_HA, &ha->dpc_flags); 9558 break; 9559 case SCSI_FIRMWARE_RESET: 9560 if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9561 if (is_qla80XX(ha)) 9562 /* set firmware context reset */ 9563 set_bit(DPC_RESET_HA_FW_CONTEXT, 9564 &ha->dpc_flags); 9565 else { 9566 rval = qla4xxx_context_reset(ha); 9567 goto exit_host_reset; 9568 } 9569 } 9570 break; 9571 } 9572 9573 recover_adapter: 9574 /* For ISP8324 and ISP8042 set graceful reset bit in IDC_DRV_CTRL if 9575 * reset is issued by application */ 9576 if ((is_qla8032(ha) || is_qla8042(ha)) && 9577 test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 9578 idc_ctrl = qla4_83xx_rd_reg(ha, QLA83XX_IDC_DRV_CTRL); 9579 qla4_83xx_wr_reg(ha, QLA83XX_IDC_DRV_CTRL, 9580 (idc_ctrl | GRACEFUL_RESET_BIT1)); 9581 } 9582 9583 rval = qla4xxx_recover_adapter(ha); 9584 if (rval != QLA_SUCCESS) { 9585 DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 9586 __func__)); 9587 rval = -EIO; 9588 } 9589 9590 exit_host_reset: 9591 return rval; 9592 } 9593 9594 /* PCI AER driver recovers from all correctable errors w/o 9595 * driver intervention. For uncorrectable errors PCI AER 9596 * driver calls the following device driver's callbacks 9597 * 9598 * - Fatal Errors - link_reset 9599 * - Non-Fatal Errors - driver's error_detected() which 9600 * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 9601 * 9602 * PCI AER driver calls 9603 * CAN_RECOVER - driver's mmio_enabled(), mmio_enabled() 9604 * returns RECOVERED or NEED_RESET if fw_hung 9605 * NEED_RESET - driver's slot_reset() 9606 * DISCONNECT - device is dead & cannot recover 9607 * RECOVERED - driver's resume() 9608 */ 9609 static pci_ers_result_t 9610 qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9611 { 9612 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9613 9614 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 9615 ha->host_no, __func__, state); 9616 9617 if (!is_aer_supported(ha)) 9618 return PCI_ERS_RESULT_NONE; 9619 9620 switch (state) { 9621 case pci_channel_io_normal: 9622 clear_bit(AF_EEH_BUSY, &ha->flags); 9623 return PCI_ERS_RESULT_CAN_RECOVER; 9624 case pci_channel_io_frozen: 9625 set_bit(AF_EEH_BUSY, &ha->flags); 9626 qla4xxx_mailbox_premature_completion(ha); 9627 qla4xxx_free_irqs(ha); 9628 pci_disable_device(pdev); 9629 /* Return back all IOs */ 9630 qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 9631 return PCI_ERS_RESULT_NEED_RESET; 9632 case pci_channel_io_perm_failure: 9633 set_bit(AF_EEH_BUSY, &ha->flags); 9634 set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 9635 qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 9636 return PCI_ERS_RESULT_DISCONNECT; 9637 } 9638 return PCI_ERS_RESULT_NEED_RESET; 9639 } 9640 9641 /** 9642 * qla4xxx_pci_mmio_enabled() - gets called if 9643 * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 9644 * and read/write to the device still works. 9645 * @pdev: PCI device pointer 9646 **/ 9647 static pci_ers_result_t 9648 qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 9649 { 9650 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9651 9652 if (!is_aer_supported(ha)) 9653 return PCI_ERS_RESULT_NONE; 9654 9655 return PCI_ERS_RESULT_RECOVERED; 9656 } 9657 9658 static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 9659 { 9660 uint32_t rval = QLA_ERROR; 9661 int fn; 9662 struct pci_dev *other_pdev = NULL; 9663 9664 ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 9665 9666 set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9667 9668 if (test_bit(AF_ONLINE, &ha->flags)) { 9669 clear_bit(AF_ONLINE, &ha->flags); 9670 clear_bit(AF_LINK_UP, &ha->flags); 9671 iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 9672 qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 9673 } 9674 9675 fn = PCI_FUNC(ha->pdev->devfn); 9676 if (is_qla8022(ha)) { 9677 while (fn > 0) { 9678 fn--; 9679 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at func %x\n", 9680 ha->host_no, __func__, fn); 9681 /* Get the pci device given the domain, bus, 9682 * slot/function number */ 9683 other_pdev = pci_get_domain_bus_and_slot( 9684 pci_domain_nr(ha->pdev->bus), 9685 ha->pdev->bus->number, 9686 PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 9687 fn)); 9688 9689 if (!other_pdev) 9690 continue; 9691 9692 if (atomic_read(&other_pdev->enable_cnt)) { 9693 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI func in enabled state%x\n", 9694 ha->host_no, __func__, fn); 9695 pci_dev_put(other_pdev); 9696 break; 9697 } 9698 pci_dev_put(other_pdev); 9699 } 9700 } else { 9701 /* this case is meant for ISP83xx/ISP84xx only */ 9702 if (qla4_83xx_can_perform_reset(ha)) { 9703 /* reset fn as iSCSI is going to perform the reset */ 9704 fn = 0; 9705 } 9706 } 9707 9708 /* The first function on the card, the reset owner will 9709 * start & initialize the firmware. The other functions 9710 * on the card will reset the firmware context 9711 */ 9712 if (!fn) { 9713 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 9714 "0x%x is the owner\n", ha->host_no, __func__, 9715 ha->pdev->devfn); 9716 9717 ha->isp_ops->idc_lock(ha); 9718 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9719 QLA8XXX_DEV_COLD); 9720 ha->isp_ops->idc_unlock(ha); 9721 9722 rval = qla4_8xxx_update_idc_reg(ha); 9723 if (rval == QLA_ERROR) { 9724 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: FAILED\n", 9725 ha->host_no, __func__); 9726 ha->isp_ops->idc_lock(ha); 9727 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9728 QLA8XXX_DEV_FAILED); 9729 ha->isp_ops->idc_unlock(ha); 9730 goto exit_error_recovery; 9731 } 9732 9733 clear_bit(AF_FW_RECOVERY, &ha->flags); 9734 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9735 9736 if (rval != QLA_SUCCESS) { 9737 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9738 "FAILED\n", ha->host_no, __func__); 9739 qla4xxx_free_irqs(ha); 9740 ha->isp_ops->idc_lock(ha); 9741 qla4_8xxx_clear_drv_active(ha); 9742 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9743 QLA8XXX_DEV_FAILED); 9744 ha->isp_ops->idc_unlock(ha); 9745 } else { 9746 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 9747 "READY\n", ha->host_no, __func__); 9748 ha->isp_ops->idc_lock(ha); 9749 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE, 9750 QLA8XXX_DEV_READY); 9751 /* Clear driver state register */ 9752 qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DRV_STATE, 0); 9753 qla4_8xxx_set_drv_active(ha); 9754 ha->isp_ops->idc_unlock(ha); 9755 ha->isp_ops->enable_intrs(ha); 9756 } 9757 } else { 9758 ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 9759 "the reset owner\n", ha->host_no, __func__, 9760 ha->pdev->devfn); 9761 if ((qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE) == 9762 QLA8XXX_DEV_READY)) { 9763 clear_bit(AF_FW_RECOVERY, &ha->flags); 9764 rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 9765 if (rval == QLA_SUCCESS) 9766 ha->isp_ops->enable_intrs(ha); 9767 else 9768 qla4xxx_free_irqs(ha); 9769 9770 ha->isp_ops->idc_lock(ha); 9771 qla4_8xxx_set_drv_active(ha); 9772 ha->isp_ops->idc_unlock(ha); 9773 } 9774 } 9775 exit_error_recovery: 9776 clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 9777 return rval; 9778 } 9779 9780 static pci_ers_result_t 9781 qla4xxx_pci_slot_reset(struct pci_dev *pdev) 9782 { 9783 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 9784 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9785 int rc; 9786 9787 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 9788 ha->host_no, __func__); 9789 9790 if (!is_aer_supported(ha)) 9791 return PCI_ERS_RESULT_NONE; 9792 9793 /* Restore the saved state of PCIe device - 9794 * BAR registers, PCI Config space, PCIX, MSI, 9795 * IOV states 9796 */ 9797 pci_restore_state(pdev); 9798 9799 /* pci_restore_state() clears the saved_state flag of the device 9800 * save restored state which resets saved_state flag 9801 */ 9802 pci_save_state(pdev); 9803 9804 /* Initialize device or resume if in suspended state */ 9805 rc = pci_enable_device(pdev); 9806 if (rc) { 9807 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 9808 "device after reset\n", ha->host_no, __func__); 9809 goto exit_slot_reset; 9810 } 9811 9812 ha->isp_ops->disable_intrs(ha); 9813 9814 if (is_qla80XX(ha)) { 9815 if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 9816 ret = PCI_ERS_RESULT_RECOVERED; 9817 goto exit_slot_reset; 9818 } else 9819 goto exit_slot_reset; 9820 } 9821 9822 exit_slot_reset: 9823 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 9824 "device after reset\n", ha->host_no, __func__, ret); 9825 return ret; 9826 } 9827 9828 static void 9829 qla4xxx_pci_resume(struct pci_dev *pdev) 9830 { 9831 struct scsi_qla_host *ha = pci_get_drvdata(pdev); 9832 int ret; 9833 9834 ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 9835 ha->host_no, __func__); 9836 9837 ret = qla4xxx_wait_for_hba_online(ha); 9838 if (ret != QLA_SUCCESS) { 9839 ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 9840 "resume I/O from slot/link_reset\n", ha->host_no, 9841 __func__); 9842 } 9843 9844 clear_bit(AF_EEH_BUSY, &ha->flags); 9845 } 9846 9847 static const struct pci_error_handlers qla4xxx_err_handler = { 9848 .error_detected = qla4xxx_pci_error_detected, 9849 .mmio_enabled = qla4xxx_pci_mmio_enabled, 9850 .slot_reset = qla4xxx_pci_slot_reset, 9851 .resume = qla4xxx_pci_resume, 9852 }; 9853 9854 static const struct pci_device_id qla4xxx_pci_tbl[] = { 9855 { 9856 .vendor = PCI_VENDOR_ID_QLOGIC, 9857 .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 9858 .subvendor = PCI_ANY_ID, 9859 .subdevice = PCI_ANY_ID, 9860 }, 9861 { 9862 .vendor = PCI_VENDOR_ID_QLOGIC, 9863 .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 9864 .subvendor = PCI_ANY_ID, 9865 .subdevice = PCI_ANY_ID, 9866 }, 9867 { 9868 .vendor = PCI_VENDOR_ID_QLOGIC, 9869 .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 9870 .subvendor = PCI_ANY_ID, 9871 .subdevice = PCI_ANY_ID, 9872 }, 9873 { 9874 .vendor = PCI_VENDOR_ID_QLOGIC, 9875 .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 9876 .subvendor = PCI_ANY_ID, 9877 .subdevice = PCI_ANY_ID, 9878 }, 9879 { 9880 .vendor = PCI_VENDOR_ID_QLOGIC, 9881 .device = PCI_DEVICE_ID_QLOGIC_ISP8324, 9882 .subvendor = PCI_ANY_ID, 9883 .subdevice = PCI_ANY_ID, 9884 }, 9885 { 9886 .vendor = PCI_VENDOR_ID_QLOGIC, 9887 .device = PCI_DEVICE_ID_QLOGIC_ISP8042, 9888 .subvendor = PCI_ANY_ID, 9889 .subdevice = PCI_ANY_ID, 9890 }, 9891 {0, 0}, 9892 }; 9893 MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 9894 9895 static struct pci_driver qla4xxx_pci_driver = { 9896 .name = DRIVER_NAME, 9897 .id_table = qla4xxx_pci_tbl, 9898 .probe = qla4xxx_probe_adapter, 9899 .remove = qla4xxx_remove_adapter, 9900 .err_handler = &qla4xxx_err_handler, 9901 }; 9902 9903 static int __init qla4xxx_module_init(void) 9904 { 9905 int ret; 9906 9907 if (ql4xqfulltracking) 9908 qla4xxx_driver_template.track_queue_depth = 1; 9909 9910 /* Allocate cache for SRBs. */ 9911 srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 9912 SLAB_HWCACHE_ALIGN, NULL); 9913 if (srb_cachep == NULL) { 9914 printk(KERN_ERR 9915 "%s: Unable to allocate SRB cache..." 9916 "Failing load!\n", DRIVER_NAME); 9917 ret = -ENOMEM; 9918 goto no_srp_cache; 9919 } 9920 9921 /* Derive version string. */ 9922 strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 9923 if (ql4xextended_error_logging) 9924 strcat(qla4xxx_version_str, "-debug"); 9925 9926 qla4xxx_scsi_transport = 9927 iscsi_register_transport(&qla4xxx_iscsi_transport); 9928 if (!qla4xxx_scsi_transport){ 9929 ret = -ENODEV; 9930 goto release_srb_cache; 9931 } 9932 9933 ret = pci_register_driver(&qla4xxx_pci_driver); 9934 if (ret) 9935 goto unregister_transport; 9936 9937 printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 9938 return 0; 9939 9940 unregister_transport: 9941 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9942 release_srb_cache: 9943 kmem_cache_destroy(srb_cachep); 9944 no_srp_cache: 9945 return ret; 9946 } 9947 9948 static void __exit qla4xxx_module_exit(void) 9949 { 9950 pci_unregister_driver(&qla4xxx_pci_driver); 9951 iscsi_unregister_transport(&qla4xxx_iscsi_transport); 9952 kmem_cache_destroy(srb_cachep); 9953 } 9954 9955 module_init(qla4xxx_module_init); 9956 module_exit(qla4xxx_module_exit); 9957 9958 MODULE_AUTHOR("QLogic Corporation"); 9959 MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 9960 MODULE_LICENSE("GPL"); 9961 MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 9962