1afaf5a2dSDavid Somayajulu /* 2afaf5a2dSDavid Somayajulu * QLogic iSCSI HBA Driver 37d01d069SVikas Chaudhary * Copyright (c) 2003-2010 QLogic Corporation 4afaf5a2dSDavid Somayajulu * 5afaf5a2dSDavid Somayajulu * See LICENSE.qla4xxx for copyright and licensing details. 6afaf5a2dSDavid Somayajulu */ 7afaf5a2dSDavid Somayajulu #include <linux/moduleparam.h> 85a0e3ad6STejun Heo #include <linux/slab.h> 9afaf5a2dSDavid Somayajulu 10afaf5a2dSDavid Somayajulu #include <scsi/scsi_tcq.h> 11afaf5a2dSDavid Somayajulu #include <scsi/scsicam.h> 12afaf5a2dSDavid Somayajulu 13afaf5a2dSDavid Somayajulu #include "ql4_def.h" 14bee4fe8eSDavid C Somayajulu #include "ql4_version.h" 15bee4fe8eSDavid C Somayajulu #include "ql4_glbl.h" 16bee4fe8eSDavid C Somayajulu #include "ql4_dbg.h" 17bee4fe8eSDavid C Somayajulu #include "ql4_inline.h" 18afaf5a2dSDavid Somayajulu 19afaf5a2dSDavid Somayajulu /* 20afaf5a2dSDavid Somayajulu * Driver version 21afaf5a2dSDavid Somayajulu */ 2247975477SAdrian Bunk static char qla4xxx_version_str[40]; 23afaf5a2dSDavid Somayajulu 24afaf5a2dSDavid Somayajulu /* 25afaf5a2dSDavid Somayajulu * SRB allocation cache 26afaf5a2dSDavid Somayajulu */ 27e18b890bSChristoph Lameter static struct kmem_cache *srb_cachep; 28afaf5a2dSDavid Somayajulu 29afaf5a2dSDavid Somayajulu /* 30afaf5a2dSDavid Somayajulu * Module parameter information and variables 31afaf5a2dSDavid Somayajulu */ 32afaf5a2dSDavid Somayajulu int ql4xdontresethba = 0; 33f4f5df23SVikas Chaudhary module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 34afaf5a2dSDavid Somayajulu MODULE_PARM_DESC(ql4xdontresethba, 35f4f5df23SVikas Chaudhary "Don't reset the HBA for driver recovery \n" 36f4f5df23SVikas Chaudhary " 0 - It will reset HBA (Default)\n" 37f4f5df23SVikas Chaudhary " 1 - It will NOT reset HBA"); 38afaf5a2dSDavid Somayajulu 3911010fecSAndrew Vasquez int ql4xextended_error_logging = 0; /* 0 = off, 1 = log errors */ 40f4f5df23SVikas Chaudhary module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 4111010fecSAndrew Vasquez MODULE_PARM_DESC(ql4xextended_error_logging, 42afaf5a2dSDavid Somayajulu "Option to enable extended error logging, " 43afaf5a2dSDavid Somayajulu "Default is 0 - no logging, 1 - debug logging"); 44afaf5a2dSDavid Somayajulu 45f4f5df23SVikas Chaudhary int ql4xenablemsix = 1; 46f4f5df23SVikas Chaudhary module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 47f4f5df23SVikas Chaudhary MODULE_PARM_DESC(ql4xenablemsix, 48f4f5df23SVikas Chaudhary "Set to enable MSI or MSI-X interrupt mechanism.\n" 49f4f5df23SVikas Chaudhary " 0 = enable INTx interrupt mechanism.\n" 50f4f5df23SVikas Chaudhary " 1 = enable MSI-X interrupt mechanism (Default).\n" 51f4f5df23SVikas Chaudhary " 2 = enable MSI interrupt mechanism."); 52477ffb9dSDavid C Somayajulu 53d510d965SMike Christie #define QL4_DEF_QDEPTH 32 548bb4033dSVikas Chaudhary static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 558bb4033dSVikas Chaudhary module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 568bb4033dSVikas Chaudhary MODULE_PARM_DESC(ql4xmaxqdepth, 578bb4033dSVikas Chaudhary "Maximum queue depth to report for target devices.\n" 588bb4033dSVikas Chaudhary " Default: 32."); 59d510d965SMike Christie 603038727cSVikas Chaudhary static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 613038727cSVikas Chaudhary module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 623038727cSVikas Chaudhary MODULE_PARM_DESC(ql4xsess_recovery_tmo, 633038727cSVikas Chaudhary "Target Session Recovery Timeout.\n" 643038727cSVikas Chaudhary " Default: 30 sec."); 653038727cSVikas Chaudhary 66afaf5a2dSDavid Somayajulu /* 67afaf5a2dSDavid Somayajulu * SCSI host template entry points 68afaf5a2dSDavid Somayajulu */ 6947975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 70afaf5a2dSDavid Somayajulu 71afaf5a2dSDavid Somayajulu /* 72afaf5a2dSDavid Somayajulu * iSCSI template entry points 73afaf5a2dSDavid Somayajulu */ 742174a04eSMike Christie static int qla4xxx_tgt_dscvr(struct Scsi_Host *shost, 752174a04eSMike Christie enum iscsi_tgt_dscvr type, uint32_t enable, 762174a04eSMike Christie struct sockaddr *dst_addr); 77afaf5a2dSDavid Somayajulu static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 78afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf); 79afaf5a2dSDavid Somayajulu static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess, 80afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf); 81aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 82aa1e93a2SMike Christie enum iscsi_host_param param, char *buf); 83d00efe3fSMike Christie static int qla4xxx_iface_set_param(struct Scsi_Host *shost, char *data, 84d00efe3fSMike Christie int count); 85ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 86ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 87ed1086e0SVikas Chaudhary int param, char *buf); 88afaf5a2dSDavid Somayajulu static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session); 895c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 90afaf5a2dSDavid Somayajulu 91afaf5a2dSDavid Somayajulu /* 92afaf5a2dSDavid Somayajulu * SCSI host template entry points 93afaf5a2dSDavid Somayajulu */ 94f281233dSJeff Garzik static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 9509a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 96afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 97ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 98afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 99afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *device); 100afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *device); 101afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev); 102024f801fSMike Christie static void qla4xxx_scan_start(struct Scsi_Host *shost); 1033128c6c7SMike Christie static mode_t ql4_attr_is_visible(int param_type, int param); 104afaf5a2dSDavid Somayajulu 105f4f5df23SVikas Chaudhary static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 106f4f5df23SVikas Chaudhary QLA82XX_LEGACY_INTR_CONFIG; 107f4f5df23SVikas Chaudhary 108afaf5a2dSDavid Somayajulu static struct scsi_host_template qla4xxx_driver_template = { 109afaf5a2dSDavid Somayajulu .module = THIS_MODULE, 110afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 111afaf5a2dSDavid Somayajulu .proc_name = DRIVER_NAME, 112afaf5a2dSDavid Somayajulu .queuecommand = qla4xxx_queuecommand, 113afaf5a2dSDavid Somayajulu 11409a0f719SVikas Chaudhary .eh_abort_handler = qla4xxx_eh_abort, 115afaf5a2dSDavid Somayajulu .eh_device_reset_handler = qla4xxx_eh_device_reset, 116ce545039SMike Christie .eh_target_reset_handler = qla4xxx_eh_target_reset, 117afaf5a2dSDavid Somayajulu .eh_host_reset_handler = qla4xxx_eh_host_reset, 1185c656af7SMike Christie .eh_timed_out = qla4xxx_eh_cmd_timed_out, 119afaf5a2dSDavid Somayajulu 120afaf5a2dSDavid Somayajulu .slave_configure = qla4xxx_slave_configure, 121afaf5a2dSDavid Somayajulu .slave_alloc = qla4xxx_slave_alloc, 122afaf5a2dSDavid Somayajulu .slave_destroy = qla4xxx_slave_destroy, 123afaf5a2dSDavid Somayajulu 124921601b7SMike Christie .scan_finished = iscsi_scan_finished, 125024f801fSMike Christie .scan_start = qla4xxx_scan_start, 126921601b7SMike Christie 127afaf5a2dSDavid Somayajulu .this_id = -1, 128afaf5a2dSDavid Somayajulu .cmd_per_lun = 3, 129afaf5a2dSDavid Somayajulu .use_clustering = ENABLE_CLUSTERING, 130afaf5a2dSDavid Somayajulu .sg_tablesize = SG_ALL, 131afaf5a2dSDavid Somayajulu 132afaf5a2dSDavid Somayajulu .max_sectors = 0xFFFF, 1337ad633c0SHarish Zunjarrao .shost_attrs = qla4xxx_host_attrs, 134afaf5a2dSDavid Somayajulu }; 135afaf5a2dSDavid Somayajulu 136afaf5a2dSDavid Somayajulu static struct iscsi_transport qla4xxx_iscsi_transport = { 137afaf5a2dSDavid Somayajulu .owner = THIS_MODULE, 138afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 139d8196ed2SMike Christie .caps = CAP_FW_DB | CAP_SENDTARGETS_OFFLOAD | 140d8196ed2SMike Christie CAP_DATA_PATH_OFFLOAD, 1418ad5781aSMike Christie .host_param_mask = ISCSI_HOST_HWADDRESS | 14222236961SMike Christie ISCSI_HOST_IPADDRESS | 1438ad5781aSMike Christie ISCSI_HOST_INITIATOR_NAME, 144ed1086e0SVikas Chaudhary .iface_param_mask = ISCSI_NET_IPV4_ADDR | 145ed1086e0SVikas Chaudhary ISCSI_NET_IPV4_SUBNET | 146ed1086e0SVikas Chaudhary ISCSI_NET_IPV4_GW | 147ed1086e0SVikas Chaudhary ISCSI_NET_IPV4_BOOTPROTO | 148ed1086e0SVikas Chaudhary ISCSI_NET_IFACE_ENABLE | 149ed1086e0SVikas Chaudhary ISCSI_NET_IPV6_LINKLOCAL | 150ed1086e0SVikas Chaudhary ISCSI_NET_IPV6_ADDR | 151ed1086e0SVikas Chaudhary ISCSI_NET_IPV6_ROUTER | 152ed1086e0SVikas Chaudhary ISCSI_NET_IPV6_ADDR_AUTOCFG | 153ed1086e0SVikas Chaudhary ISCSI_NET_IPV6_LINKLOCAL_AUTOCFG | 154ed1086e0SVikas Chaudhary ISCSI_NET_IFACE_ENABLE, 155afaf5a2dSDavid Somayajulu .tgt_dscvr = qla4xxx_tgt_dscvr, 1563128c6c7SMike Christie .attr_is_visible = ql4_attr_is_visible, 157afaf5a2dSDavid Somayajulu .get_conn_param = qla4xxx_conn_get_param, 158afaf5a2dSDavid Somayajulu .get_session_param = qla4xxx_sess_get_param, 159aa1e93a2SMike Christie .get_host_param = qla4xxx_host_get_param, 160d00efe3fSMike Christie .set_iface_param = qla4xxx_iface_set_param, 161afaf5a2dSDavid Somayajulu .session_recovery_timedout = qla4xxx_recovery_timedout, 162ed1086e0SVikas Chaudhary .get_iface_param = qla4xxx_get_iface_param, 163afaf5a2dSDavid Somayajulu }; 164afaf5a2dSDavid Somayajulu 165afaf5a2dSDavid Somayajulu static struct scsi_transport_template *qla4xxx_scsi_transport; 166afaf5a2dSDavid Somayajulu 1673128c6c7SMike Christie static mode_t ql4_attr_is_visible(int param_type, int param) 1683128c6c7SMike Christie { 1693128c6c7SMike Christie switch (param_type) { 1703128c6c7SMike Christie case ISCSI_PARAM: 1713128c6c7SMike Christie switch (param) { 1723128c6c7SMike Christie case ISCSI_PARAM_CONN_ADDRESS: 1733128c6c7SMike Christie case ISCSI_PARAM_CONN_PORT: 1741d063c17SMike Christie case ISCSI_PARAM_TARGET_NAME: 1751d063c17SMike Christie case ISCSI_PARAM_TPGT: 1761d063c17SMike Christie case ISCSI_PARAM_TARGET_ALIAS: 1773128c6c7SMike Christie return S_IRUGO; 1783128c6c7SMike Christie default: 1793128c6c7SMike Christie return 0; 1803128c6c7SMike Christie } 1813128c6c7SMike Christie } 1823128c6c7SMike Christie 1833128c6c7SMike Christie return 0; 1843128c6c7SMike Christie } 1853128c6c7SMike Christie 186ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 187ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 188ed1086e0SVikas Chaudhary int param, char *buf) 189ed1086e0SVikas Chaudhary { 190ed1086e0SVikas Chaudhary struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 191ed1086e0SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 192ed1086e0SVikas Chaudhary int len = -ENOSYS; 193ed1086e0SVikas Chaudhary 194ed1086e0SVikas Chaudhary if (param_type != ISCSI_NET_PARAM) 195ed1086e0SVikas Chaudhary return -ENOSYS; 196ed1086e0SVikas Chaudhary 197ed1086e0SVikas Chaudhary switch (param) { 198ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_ADDR: 199ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 200ed1086e0SVikas Chaudhary break; 201ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_SUBNET: 202ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 203ed1086e0SVikas Chaudhary break; 204ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_GW: 205ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 206ed1086e0SVikas Chaudhary break; 207ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IFACE_ENABLE: 208ed1086e0SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 209ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 210ed1086e0SVikas Chaudhary (ha->ip_config.ipv4_options & 211ed1086e0SVikas Chaudhary IPOPT_IPV4_PROTOCOL_ENABLE) ? 212ed1086e0SVikas Chaudhary "enabled" : "disabled"); 213ed1086e0SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 214ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 215ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_options & 216ed1086e0SVikas Chaudhary IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 217ed1086e0SVikas Chaudhary "enabled" : "disabled"); 218ed1086e0SVikas Chaudhary break; 219ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 220ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 221ed1086e0SVikas Chaudhary (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 222ed1086e0SVikas Chaudhary "dhcp" : "static"); 223ed1086e0SVikas Chaudhary break; 224ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR: 225ed1086e0SVikas Chaudhary if (iface->iface_num == 0) 226ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 227ed1086e0SVikas Chaudhary if (iface->iface_num == 1) 228ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 229ed1086e0SVikas Chaudhary break; 230ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 231ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 232ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr); 233ed1086e0SVikas Chaudhary break; 234ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ROUTER: 235ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 236ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_default_router_addr); 237ed1086e0SVikas Chaudhary break; 238ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 239ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 240ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 241ed1086e0SVikas Chaudhary IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 242ed1086e0SVikas Chaudhary "nd" : "static"); 243ed1086e0SVikas Chaudhary break; 244ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 245ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 246ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 247ed1086e0SVikas Chaudhary IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 248ed1086e0SVikas Chaudhary "auto" : "static"); 249ed1086e0SVikas Chaudhary break; 250ed1086e0SVikas Chaudhary default: 251ed1086e0SVikas Chaudhary len = -ENOSYS; 252ed1086e0SVikas Chaudhary } 253ed1086e0SVikas Chaudhary 254ed1086e0SVikas Chaudhary return len; 255ed1086e0SVikas Chaudhary } 256ed1086e0SVikas Chaudhary 2575c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 2585c656af7SMike Christie { 2595c656af7SMike Christie struct iscsi_cls_session *session; 2605c656af7SMike Christie struct ddb_entry *ddb_entry; 2615c656af7SMike Christie 2625c656af7SMike Christie session = starget_to_session(scsi_target(sc->device)); 2635c656af7SMike Christie ddb_entry = session->dd_data; 2645c656af7SMike Christie 2655c656af7SMike Christie /* if we are not logged in then the LLD is going to clean up the cmd */ 2665c656af7SMike Christie if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) 2675c656af7SMike Christie return BLK_EH_RESET_TIMER; 2685c656af7SMike Christie else 2695c656af7SMike Christie return BLK_EH_NOT_HANDLED; 2705c656af7SMike Christie } 2715c656af7SMike Christie 272afaf5a2dSDavid Somayajulu static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session) 273afaf5a2dSDavid Somayajulu { 274afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = session->dd_data; 275afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = ddb_entry->ha; 276afaf5a2dSDavid Somayajulu 277568d303bSMike Christie if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { 278afaf5a2dSDavid Somayajulu atomic_set(&ddb_entry->state, DDB_STATE_DEAD); 279afaf5a2dSDavid Somayajulu 2803013cea8SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: ddb [%d] session recovery timeout " 281568d303bSMike Christie "of (%d) secs exhausted, marking device DEAD.\n", 282568d303bSMike Christie ha->host_no, __func__, ddb_entry->fw_ddb_index, 2833038727cSVikas Chaudhary ddb_entry->sess->recovery_tmo)); 284afaf5a2dSDavid Somayajulu } 285568d303bSMike Christie } 286afaf5a2dSDavid Somayajulu 287aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 288aa1e93a2SMike Christie enum iscsi_host_param param, char *buf) 289aa1e93a2SMike Christie { 290aa1e93a2SMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 291aa1e93a2SMike Christie int len; 292aa1e93a2SMike Christie 293aa1e93a2SMike Christie switch (param) { 294aa1e93a2SMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 2957ffc49a6SMichael Chan len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 296aa1e93a2SMike Christie break; 29722236961SMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 2982bab08fcSVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 29922236961SMike Christie break; 3008ad5781aSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 30122236961SMike Christie len = sprintf(buf, "%s\n", ha->name_string); 3028ad5781aSMike Christie break; 303aa1e93a2SMike Christie default: 304aa1e93a2SMike Christie return -ENOSYS; 305aa1e93a2SMike Christie } 306aa1e93a2SMike Christie 307aa1e93a2SMike Christie return len; 308aa1e93a2SMike Christie } 309aa1e93a2SMike Christie 310ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 311ed1086e0SVikas Chaudhary { 312ed1086e0SVikas Chaudhary if (ha->iface_ipv4) 313ed1086e0SVikas Chaudhary return; 314ed1086e0SVikas Chaudhary 315ed1086e0SVikas Chaudhary /* IPv4 */ 316ed1086e0SVikas Chaudhary ha->iface_ipv4 = iscsi_create_iface(ha->host, 317ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 318ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV4, 0, 0); 319ed1086e0SVikas Chaudhary if (!ha->iface_ipv4) 320ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 321ed1086e0SVikas Chaudhary "iface0.\n"); 322ed1086e0SVikas Chaudhary } 323ed1086e0SVikas Chaudhary 324ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 325ed1086e0SVikas Chaudhary { 326ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 327ed1086e0SVikas Chaudhary /* IPv6 iface-0 */ 328ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 329ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 330ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 0, 331ed1086e0SVikas Chaudhary 0); 332ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 333ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 334ed1086e0SVikas Chaudhary "iface0.\n"); 335ed1086e0SVikas Chaudhary 336ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 337ed1086e0SVikas Chaudhary /* IPv6 iface-1 */ 338ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 339ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 340ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 1, 341ed1086e0SVikas Chaudhary 0); 342ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 343ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 344ed1086e0SVikas Chaudhary "iface1.\n"); 345ed1086e0SVikas Chaudhary } 346ed1086e0SVikas Chaudhary 347ed1086e0SVikas Chaudhary static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 348ed1086e0SVikas Chaudhary { 349ed1086e0SVikas Chaudhary if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 350ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 351ed1086e0SVikas Chaudhary 352ed1086e0SVikas Chaudhary if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 353ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 354ed1086e0SVikas Chaudhary } 355ed1086e0SVikas Chaudhary 356ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 357ed1086e0SVikas Chaudhary { 358ed1086e0SVikas Chaudhary if (ha->iface_ipv4) { 359ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv4); 360ed1086e0SVikas Chaudhary ha->iface_ipv4 = NULL; 361ed1086e0SVikas Chaudhary } 362ed1086e0SVikas Chaudhary } 363ed1086e0SVikas Chaudhary 364ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 365ed1086e0SVikas Chaudhary { 366ed1086e0SVikas Chaudhary if (ha->iface_ipv6_0) { 367ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_0); 368ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = NULL; 369ed1086e0SVikas Chaudhary } 370ed1086e0SVikas Chaudhary if (ha->iface_ipv6_1) { 371ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_1); 372ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = NULL; 373ed1086e0SVikas Chaudhary } 374ed1086e0SVikas Chaudhary } 375ed1086e0SVikas Chaudhary 376ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 377ed1086e0SVikas Chaudhary { 378ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 379ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 380ed1086e0SVikas Chaudhary } 381ed1086e0SVikas Chaudhary 382d00efe3fSMike Christie static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 383d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 384d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 385d00efe3fSMike Christie { 386d00efe3fSMike Christie /* 387d00efe3fSMike Christie * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 388d00efe3fSMike Christie * iface_num 1 is valid only for IPv6 Addr. 389d00efe3fSMike Christie */ 390d00efe3fSMike Christie switch (iface_param->param) { 391d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 392d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 393d00efe3fSMike Christie /* IPv6 Addr 1 */ 394d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 395d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr1)); 396d00efe3fSMike Christie else 397d00efe3fSMike Christie /* IPv6 Addr 0 */ 398d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 399d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr0)); 400d00efe3fSMike Christie break; 401d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 402d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 403d00efe3fSMike Christie break; 404d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 405d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_if_id)); 406d00efe3fSMike Christie break; 407d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 408d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 409d00efe3fSMike Christie break; 410d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 411d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 412d00efe3fSMike Christie break; 413d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 414d00efe3fSMike Christie /* Autocfg applies to even interface */ 415d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 416d00efe3fSMike Christie break; 417d00efe3fSMike Christie 418d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 419d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= 420d00efe3fSMike Christie cpu_to_le16( 421d00efe3fSMike Christie ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 422d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 423d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= 424d00efe3fSMike Christie cpu_to_le16( 425d00efe3fSMike Christie IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 426d00efe3fSMike Christie else 427d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 428d00efe3fSMike Christie "IPv6 addr\n"); 429d00efe3fSMike Christie break; 430d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 431d00efe3fSMike Christie /* Autocfg applies to even interface */ 432d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 433d00efe3fSMike Christie break; 434d00efe3fSMike Christie 435d00efe3fSMike Christie if (iface_param->value[0] == 436d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 437d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 438d00efe3fSMike Christie IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 439d00efe3fSMike Christie else if (iface_param->value[0] == 440d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 441d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 442d00efe3fSMike Christie ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 443d00efe3fSMike Christie else 444d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 445d00efe3fSMike Christie "IPv6 linklocal addr\n"); 446d00efe3fSMike Christie break; 447d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 448d00efe3fSMike Christie /* Autocfg applies to even interface */ 449d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 450d00efe3fSMike Christie break; 451d00efe3fSMike Christie 452d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 453d00efe3fSMike Christie memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 454d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 455d00efe3fSMike Christie break; 456d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 457ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 458d00efe3fSMike Christie init_fw_cb->ipv6_opts |= 459d00efe3fSMike Christie cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 460ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 461ed1086e0SVikas Chaudhary } else { 462d00efe3fSMike Christie init_fw_cb->ipv6_opts &= 463d00efe3fSMike Christie cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 464d00efe3fSMike Christie 0xFFFF); 465ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 466ed1086e0SVikas Chaudhary } 467d00efe3fSMike Christie break; 468d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 469d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 470d00efe3fSMike Christie break; 471d00efe3fSMike Christie init_fw_cb->ipv6_vlan_tag = *(uint16_t *)iface_param->value; 472d00efe3fSMike Christie break; 473d00efe3fSMike Christie default: 474d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 475d00efe3fSMike Christie iface_param->param); 476d00efe3fSMike Christie break; 477d00efe3fSMike Christie } 478d00efe3fSMike Christie } 479d00efe3fSMike Christie 480d00efe3fSMike Christie static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 481d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 482d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 483d00efe3fSMike Christie { 484d00efe3fSMike Christie switch (iface_param->param) { 485d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 486d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_addr, iface_param->value, 487d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_addr)); 488d00efe3fSMike Christie break; 489d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 490d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 491d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_subnet)); 492d00efe3fSMike Christie break; 493d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_GW: 494d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 495d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_gw_addr)); 496d00efe3fSMike Christie break; 497d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 498d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 499d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts |= 500d00efe3fSMike Christie cpu_to_le16(TCPOPT_DHCP_ENABLE); 501d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 502d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts &= 503d00efe3fSMike Christie cpu_to_le16(~TCPOPT_DHCP_ENABLE); 504d00efe3fSMike Christie else 505d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 506d00efe3fSMike Christie break; 507d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 508ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 509d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts |= 5102bab08fcSVikas Chaudhary cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 511ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 512ed1086e0SVikas Chaudhary } else { 513d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts &= 5142bab08fcSVikas Chaudhary cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 515d00efe3fSMike Christie 0xFFFF); 516ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 517ed1086e0SVikas Chaudhary } 518d00efe3fSMike Christie break; 519d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 520d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 521d00efe3fSMike Christie break; 522d00efe3fSMike Christie init_fw_cb->ipv4_vlan_tag = *(uint16_t *)iface_param->value; 523d00efe3fSMike Christie break; 524d00efe3fSMike Christie default: 525d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 526d00efe3fSMike Christie iface_param->param); 527d00efe3fSMike Christie break; 528d00efe3fSMike Christie } 529d00efe3fSMike Christie } 530d00efe3fSMike Christie 531d00efe3fSMike Christie static void 532d00efe3fSMike Christie qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 533d00efe3fSMike Christie { 534d00efe3fSMike Christie struct addr_ctrl_blk_def *acb; 535d00efe3fSMike Christie acb = (struct addr_ctrl_blk_def *)init_fw_cb; 536d00efe3fSMike Christie memset(acb->reserved1, 0, sizeof(acb->reserved1)); 537d00efe3fSMike Christie memset(acb->reserved2, 0, sizeof(acb->reserved2)); 538d00efe3fSMike Christie memset(acb->reserved3, 0, sizeof(acb->reserved3)); 539d00efe3fSMike Christie memset(acb->reserved4, 0, sizeof(acb->reserved4)); 540d00efe3fSMike Christie memset(acb->reserved5, 0, sizeof(acb->reserved5)); 541d00efe3fSMike Christie memset(acb->reserved6, 0, sizeof(acb->reserved6)); 542d00efe3fSMike Christie memset(acb->reserved7, 0, sizeof(acb->reserved7)); 543d00efe3fSMike Christie memset(acb->reserved8, 0, sizeof(acb->reserved8)); 544d00efe3fSMike Christie memset(acb->reserved9, 0, sizeof(acb->reserved9)); 545d00efe3fSMike Christie memset(acb->reserved10, 0, sizeof(acb->reserved10)); 546d00efe3fSMike Christie memset(acb->reserved11, 0, sizeof(acb->reserved11)); 547d00efe3fSMike Christie memset(acb->reserved12, 0, sizeof(acb->reserved12)); 548d00efe3fSMike Christie memset(acb->reserved13, 0, sizeof(acb->reserved13)); 549d00efe3fSMike Christie memset(acb->reserved14, 0, sizeof(acb->reserved14)); 550d00efe3fSMike Christie memset(acb->reserved15, 0, sizeof(acb->reserved15)); 551d00efe3fSMike Christie } 552d00efe3fSMike Christie 553d00efe3fSMike Christie static int 554d00efe3fSMike Christie qla4xxx_iface_set_param(struct Scsi_Host *shost, char *data, int count) 555d00efe3fSMike Christie { 556d00efe3fSMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 557d00efe3fSMike Christie int rval = 0; 558d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param = NULL; 559d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb = NULL; 560d00efe3fSMike Christie dma_addr_t init_fw_cb_dma; 561d00efe3fSMike Christie uint32_t mbox_cmd[MBOX_REG_COUNT]; 562d00efe3fSMike Christie uint32_t mbox_sts[MBOX_REG_COUNT]; 563d00efe3fSMike Christie uint32_t total_param_count; 564d00efe3fSMike Christie uint32_t length; 565d00efe3fSMike Christie 566d00efe3fSMike Christie init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 567d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 568d00efe3fSMike Christie &init_fw_cb_dma, GFP_KERNEL); 569d00efe3fSMike Christie if (!init_fw_cb) { 570d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 571d00efe3fSMike Christie __func__); 572d00efe3fSMike Christie return -ENOMEM; 573d00efe3fSMike Christie } 574d00efe3fSMike Christie 575d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 576d00efe3fSMike Christie memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 577d00efe3fSMike Christie memset(&mbox_sts, 0, sizeof(mbox_sts)); 578d00efe3fSMike Christie 579d00efe3fSMike Christie if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 580d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 581d00efe3fSMike Christie rval = -EIO; 582d00efe3fSMike Christie goto exit_init_fw_cb; 583d00efe3fSMike Christie } 584d00efe3fSMike Christie 585d00efe3fSMike Christie total_param_count = count; 586d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *)data; 587d00efe3fSMike Christie 588d00efe3fSMike Christie for ( ; total_param_count != 0; total_param_count--) { 589d00efe3fSMike Christie length = iface_param->len; 590d00efe3fSMike Christie 591d00efe3fSMike Christie if (iface_param->param_type != ISCSI_NET_PARAM) 592d00efe3fSMike Christie continue; 593d00efe3fSMike Christie 594d00efe3fSMike Christie switch (iface_param->iface_type) { 595d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV4: 596d00efe3fSMike Christie switch (iface_param->iface_num) { 597d00efe3fSMike Christie case 0: 598d00efe3fSMike Christie qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 599d00efe3fSMike Christie break; 600d00efe3fSMike Christie default: 601d00efe3fSMike Christie /* Cannot have more than one IPv4 interface */ 602d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 603d00efe3fSMike Christie "number = %d\n", 604d00efe3fSMike Christie iface_param->iface_num); 605d00efe3fSMike Christie break; 606d00efe3fSMike Christie } 607d00efe3fSMike Christie break; 608d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV6: 609d00efe3fSMike Christie switch (iface_param->iface_num) { 610d00efe3fSMike Christie case 0: 611d00efe3fSMike Christie case 1: 612d00efe3fSMike Christie qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 613d00efe3fSMike Christie break; 614d00efe3fSMike Christie default: 615d00efe3fSMike Christie /* Cannot have more than two IPv6 interface */ 616d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 617d00efe3fSMike Christie "number = %d\n", 618d00efe3fSMike Christie iface_param->iface_num); 619d00efe3fSMike Christie break; 620d00efe3fSMike Christie } 621d00efe3fSMike Christie break; 622d00efe3fSMike Christie default: 623d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 624d00efe3fSMike Christie break; 625d00efe3fSMike Christie } 626d00efe3fSMike Christie 627d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *) 628d00efe3fSMike Christie ((uint8_t *)iface_param + 629d00efe3fSMike Christie sizeof(struct iscsi_iface_param_info) + length); 630d00efe3fSMike Christie } 631d00efe3fSMike Christie 632d00efe3fSMike Christie init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 633d00efe3fSMike Christie 634d00efe3fSMike Christie rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 635d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 636d00efe3fSMike Christie FLASH_OPT_RMW_COMMIT); 637d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 638d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 639d00efe3fSMike Christie __func__); 640d00efe3fSMike Christie rval = -EIO; 641d00efe3fSMike Christie goto exit_init_fw_cb; 642d00efe3fSMike Christie } 643d00efe3fSMike Christie 644d00efe3fSMike Christie qla4xxx_disable_acb(ha); 645d00efe3fSMike Christie 646d00efe3fSMike Christie qla4xxx_initcb_to_acb(init_fw_cb); 647d00efe3fSMike Christie 648d00efe3fSMike Christie rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 649d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 650d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 651d00efe3fSMike Christie __func__); 652d00efe3fSMike Christie rval = -EIO; 653d00efe3fSMike Christie goto exit_init_fw_cb; 654d00efe3fSMike Christie } 655d00efe3fSMike Christie 656d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 657d00efe3fSMike Christie qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 658d00efe3fSMike Christie init_fw_cb_dma); 659d00efe3fSMike Christie 660d00efe3fSMike Christie exit_init_fw_cb: 661d00efe3fSMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 662d00efe3fSMike Christie init_fw_cb, init_fw_cb_dma); 663d00efe3fSMike Christie 664d00efe3fSMike Christie return rval; 665d00efe3fSMike Christie } 666d00efe3fSMike Christie 667afaf5a2dSDavid Somayajulu static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess, 668afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 669afaf5a2dSDavid Somayajulu { 670afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = sess->dd_data; 671afaf5a2dSDavid Somayajulu int len; 672afaf5a2dSDavid Somayajulu 673afaf5a2dSDavid Somayajulu switch (param) { 674afaf5a2dSDavid Somayajulu case ISCSI_PARAM_TARGET_NAME: 675afaf5a2dSDavid Somayajulu len = snprintf(buf, PAGE_SIZE - 1, "%s\n", 676afaf5a2dSDavid Somayajulu ddb_entry->iscsi_name); 677afaf5a2dSDavid Somayajulu break; 678afaf5a2dSDavid Somayajulu case ISCSI_PARAM_TPGT: 679afaf5a2dSDavid Somayajulu len = sprintf(buf, "%u\n", ddb_entry->tpgt); 680afaf5a2dSDavid Somayajulu break; 6813b2bef1fSVikas Chaudhary case ISCSI_PARAM_TARGET_ALIAS: 6823b2bef1fSVikas Chaudhary len = snprintf(buf, PAGE_SIZE - 1, "%s\n", 6833b2bef1fSVikas Chaudhary ddb_entry->iscsi_alias); 6843b2bef1fSVikas Chaudhary break; 685afaf5a2dSDavid Somayajulu default: 686afaf5a2dSDavid Somayajulu return -ENOSYS; 687afaf5a2dSDavid Somayajulu } 688afaf5a2dSDavid Somayajulu 689afaf5a2dSDavid Somayajulu return len; 690afaf5a2dSDavid Somayajulu } 691afaf5a2dSDavid Somayajulu 692afaf5a2dSDavid Somayajulu static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 693afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 694afaf5a2dSDavid Somayajulu { 695afaf5a2dSDavid Somayajulu struct iscsi_cls_session *session; 696afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry; 697afaf5a2dSDavid Somayajulu int len; 698afaf5a2dSDavid Somayajulu 699afaf5a2dSDavid Somayajulu session = iscsi_dev_to_session(conn->dev.parent); 700afaf5a2dSDavid Somayajulu ddb_entry = session->dd_data; 701afaf5a2dSDavid Somayajulu 702afaf5a2dSDavid Somayajulu switch (param) { 703afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_PORT: 704afaf5a2dSDavid Somayajulu len = sprintf(buf, "%hu\n", ddb_entry->port); 705afaf5a2dSDavid Somayajulu break; 706afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_ADDRESS: 707afaf5a2dSDavid Somayajulu /* TODO: what are the ipv6 bits */ 70863779436SHarvey Harrison len = sprintf(buf, "%pI4\n", &ddb_entry->ip_addr); 709afaf5a2dSDavid Somayajulu break; 710afaf5a2dSDavid Somayajulu default: 711afaf5a2dSDavid Somayajulu return -ENOSYS; 712afaf5a2dSDavid Somayajulu } 713afaf5a2dSDavid Somayajulu 714afaf5a2dSDavid Somayajulu return len; 715afaf5a2dSDavid Somayajulu } 716afaf5a2dSDavid Somayajulu 7172174a04eSMike Christie static int qla4xxx_tgt_dscvr(struct Scsi_Host *shost, 7182174a04eSMike Christie enum iscsi_tgt_dscvr type, uint32_t enable, 7192174a04eSMike Christie struct sockaddr *dst_addr) 720afaf5a2dSDavid Somayajulu { 721afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 722afaf5a2dSDavid Somayajulu struct sockaddr_in *addr; 723afaf5a2dSDavid Somayajulu struct sockaddr_in6 *addr6; 724afaf5a2dSDavid Somayajulu int ret = 0; 725afaf5a2dSDavid Somayajulu 726afaf5a2dSDavid Somayajulu ha = (struct scsi_qla_host *) shost->hostdata; 727afaf5a2dSDavid Somayajulu 728afaf5a2dSDavid Somayajulu switch (type) { 729afaf5a2dSDavid Somayajulu case ISCSI_TGT_DSCVR_SEND_TARGETS: 730afaf5a2dSDavid Somayajulu if (dst_addr->sa_family == AF_INET) { 731afaf5a2dSDavid Somayajulu addr = (struct sockaddr_in *)dst_addr; 732afaf5a2dSDavid Somayajulu if (qla4xxx_send_tgts(ha, (char *)&addr->sin_addr, 733afaf5a2dSDavid Somayajulu addr->sin_port) != QLA_SUCCESS) 734afaf5a2dSDavid Somayajulu ret = -EIO; 735afaf5a2dSDavid Somayajulu } else if (dst_addr->sa_family == AF_INET6) { 736afaf5a2dSDavid Somayajulu /* 737afaf5a2dSDavid Somayajulu * TODO: fix qla4xxx_send_tgts 738afaf5a2dSDavid Somayajulu */ 739afaf5a2dSDavid Somayajulu addr6 = (struct sockaddr_in6 *)dst_addr; 740afaf5a2dSDavid Somayajulu if (qla4xxx_send_tgts(ha, (char *)&addr6->sin6_addr, 741afaf5a2dSDavid Somayajulu addr6->sin6_port) != QLA_SUCCESS) 742afaf5a2dSDavid Somayajulu ret = -EIO; 743afaf5a2dSDavid Somayajulu } else 744afaf5a2dSDavid Somayajulu ret = -ENOSYS; 745afaf5a2dSDavid Somayajulu break; 746afaf5a2dSDavid Somayajulu default: 747afaf5a2dSDavid Somayajulu ret = -ENOSYS; 748afaf5a2dSDavid Somayajulu } 749afaf5a2dSDavid Somayajulu return ret; 750afaf5a2dSDavid Somayajulu } 751afaf5a2dSDavid Somayajulu 752afaf5a2dSDavid Somayajulu void qla4xxx_destroy_sess(struct ddb_entry *ddb_entry) 753afaf5a2dSDavid Somayajulu { 754afaf5a2dSDavid Somayajulu if (!ddb_entry->sess) 755afaf5a2dSDavid Somayajulu return; 756afaf5a2dSDavid Somayajulu 757afaf5a2dSDavid Somayajulu if (ddb_entry->conn) { 75826974789SMike Christie atomic_set(&ddb_entry->state, DDB_STATE_DEAD); 759afaf5a2dSDavid Somayajulu iscsi_remove_session(ddb_entry->sess); 760afaf5a2dSDavid Somayajulu } 761afaf5a2dSDavid Somayajulu iscsi_free_session(ddb_entry->sess); 762afaf5a2dSDavid Somayajulu } 763afaf5a2dSDavid Somayajulu 764afaf5a2dSDavid Somayajulu int qla4xxx_add_sess(struct ddb_entry *ddb_entry) 765afaf5a2dSDavid Somayajulu { 766afaf5a2dSDavid Somayajulu int err; 767afaf5a2dSDavid Somayajulu 7683038727cSVikas Chaudhary ddb_entry->sess->recovery_tmo = ql4xsess_recovery_tmo; 7693013cea8SVikas Chaudhary 770afaf5a2dSDavid Somayajulu err = iscsi_add_session(ddb_entry->sess, ddb_entry->fw_ddb_index); 771afaf5a2dSDavid Somayajulu if (err) { 772afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_ERR "Could not add session.\n")); 773afaf5a2dSDavid Somayajulu return err; 774afaf5a2dSDavid Somayajulu } 775afaf5a2dSDavid Somayajulu 7765d91e209SMike Christie ddb_entry->conn = iscsi_create_conn(ddb_entry->sess, 0, 0); 777afaf5a2dSDavid Somayajulu if (!ddb_entry->conn) { 778afaf5a2dSDavid Somayajulu iscsi_remove_session(ddb_entry->sess); 779afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_ERR "Could not add connection.\n")); 780afaf5a2dSDavid Somayajulu return -ENOMEM; 781afaf5a2dSDavid Somayajulu } 782b635930dSMike Christie 783b635930dSMike Christie /* finally ready to go */ 784b635930dSMike Christie iscsi_unblock_session(ddb_entry->sess); 785afaf5a2dSDavid Somayajulu return 0; 786afaf5a2dSDavid Somayajulu } 787afaf5a2dSDavid Somayajulu 788afaf5a2dSDavid Somayajulu struct ddb_entry *qla4xxx_alloc_sess(struct scsi_qla_host *ha) 789afaf5a2dSDavid Somayajulu { 790afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry; 791afaf5a2dSDavid Somayajulu struct iscsi_cls_session *sess; 792afaf5a2dSDavid Somayajulu 7935d91e209SMike Christie sess = iscsi_alloc_session(ha->host, &qla4xxx_iscsi_transport, 7945d91e209SMike Christie sizeof(struct ddb_entry)); 795afaf5a2dSDavid Somayajulu if (!sess) 796afaf5a2dSDavid Somayajulu return NULL; 797afaf5a2dSDavid Somayajulu 798afaf5a2dSDavid Somayajulu ddb_entry = sess->dd_data; 799afaf5a2dSDavid Somayajulu memset(ddb_entry, 0, sizeof(*ddb_entry)); 800afaf5a2dSDavid Somayajulu ddb_entry->ha = ha; 801afaf5a2dSDavid Somayajulu ddb_entry->sess = sess; 802afaf5a2dSDavid Somayajulu return ddb_entry; 803afaf5a2dSDavid Somayajulu } 804afaf5a2dSDavid Somayajulu 805024f801fSMike Christie static void qla4xxx_scan_start(struct Scsi_Host *shost) 806024f801fSMike Christie { 807024f801fSMike Christie struct scsi_qla_host *ha = shost_priv(shost); 808024f801fSMike Christie struct ddb_entry *ddb_entry, *ddbtemp; 809024f801fSMike Christie 810024f801fSMike Christie /* finish setup of sessions that were already setup in firmware */ 811024f801fSMike Christie list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) { 812024f801fSMike Christie if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) 813024f801fSMike Christie qla4xxx_add_sess(ddb_entry); 814024f801fSMike Christie } 815024f801fSMike Christie } 816024f801fSMike Christie 817afaf5a2dSDavid Somayajulu /* 818afaf5a2dSDavid Somayajulu * Timer routines 819afaf5a2dSDavid Somayajulu */ 820afaf5a2dSDavid Somayajulu 821afaf5a2dSDavid Somayajulu static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 822afaf5a2dSDavid Somayajulu unsigned long interval) 823afaf5a2dSDavid Somayajulu { 824afaf5a2dSDavid Somayajulu DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 825afaf5a2dSDavid Somayajulu __func__, ha->host->host_no)); 826afaf5a2dSDavid Somayajulu init_timer(&ha->timer); 827afaf5a2dSDavid Somayajulu ha->timer.expires = jiffies + interval * HZ; 828afaf5a2dSDavid Somayajulu ha->timer.data = (unsigned long)ha; 829afaf5a2dSDavid Somayajulu ha->timer.function = (void (*)(unsigned long))func; 830afaf5a2dSDavid Somayajulu add_timer(&ha->timer); 831afaf5a2dSDavid Somayajulu ha->timer_active = 1; 832afaf5a2dSDavid Somayajulu } 833afaf5a2dSDavid Somayajulu 834afaf5a2dSDavid Somayajulu static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 835afaf5a2dSDavid Somayajulu { 836afaf5a2dSDavid Somayajulu del_timer_sync(&ha->timer); 837afaf5a2dSDavid Somayajulu ha->timer_active = 0; 838afaf5a2dSDavid Somayajulu } 839afaf5a2dSDavid Somayajulu 840afaf5a2dSDavid Somayajulu /*** 841afaf5a2dSDavid Somayajulu * qla4xxx_mark_device_missing - mark a device as missing. 842afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 843afaf5a2dSDavid Somayajulu * @ddb_entry: Pointer to device database entry 844afaf5a2dSDavid Somayajulu * 845f4f5df23SVikas Chaudhary * This routine marks a device missing and close connection. 846afaf5a2dSDavid Somayajulu **/ 847afaf5a2dSDavid Somayajulu void qla4xxx_mark_device_missing(struct scsi_qla_host *ha, 848afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry) 849afaf5a2dSDavid Somayajulu { 850f4f5df23SVikas Chaudhary if ((atomic_read(&ddb_entry->state) != DDB_STATE_DEAD)) { 851afaf5a2dSDavid Somayajulu atomic_set(&ddb_entry->state, DDB_STATE_MISSING); 852f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: ddb [%d] marked MISSING\n", 853f4f5df23SVikas Chaudhary ha->host_no, ddb_entry->fw_ddb_index)); 854f4f5df23SVikas Chaudhary } else 855f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: ddb [%d] DEAD\n", ha->host_no, 856f4f5df23SVikas Chaudhary ddb_entry->fw_ddb_index)) 857f4f5df23SVikas Chaudhary 858b635930dSMike Christie iscsi_block_session(ddb_entry->sess); 859e5bd7b54SMike Christie iscsi_conn_error_event(ddb_entry->conn, ISCSI_ERR_CONN_FAILED); 860afaf5a2dSDavid Somayajulu } 861afaf5a2dSDavid Somayajulu 862f4f5df23SVikas Chaudhary /** 863f4f5df23SVikas Chaudhary * qla4xxx_mark_all_devices_missing - mark all devices as missing. 864f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 865f4f5df23SVikas Chaudhary * 866f4f5df23SVikas Chaudhary * This routine marks a device missing and resets the relogin retry count. 867f4f5df23SVikas Chaudhary **/ 868f4f5df23SVikas Chaudhary void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 869f4f5df23SVikas Chaudhary { 870f4f5df23SVikas Chaudhary struct ddb_entry *ddb_entry, *ddbtemp; 871f4f5df23SVikas Chaudhary list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) { 872f4f5df23SVikas Chaudhary qla4xxx_mark_device_missing(ha, ddb_entry); 873f4f5df23SVikas Chaudhary } 874f4f5df23SVikas Chaudhary } 875f4f5df23SVikas Chaudhary 876afaf5a2dSDavid Somayajulu static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 877afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, 8788f0722caSVikas Chaudhary struct scsi_cmnd *cmd) 879afaf5a2dSDavid Somayajulu { 880afaf5a2dSDavid Somayajulu struct srb *srb; 881afaf5a2dSDavid Somayajulu 882afaf5a2dSDavid Somayajulu srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 883afaf5a2dSDavid Somayajulu if (!srb) 884afaf5a2dSDavid Somayajulu return srb; 885afaf5a2dSDavid Somayajulu 88609a0f719SVikas Chaudhary kref_init(&srb->srb_ref); 887afaf5a2dSDavid Somayajulu srb->ha = ha; 888afaf5a2dSDavid Somayajulu srb->ddb = ddb_entry; 889afaf5a2dSDavid Somayajulu srb->cmd = cmd; 890afaf5a2dSDavid Somayajulu srb->flags = 0; 8915369887aSVikas Chaudhary CMD_SP(cmd) = (void *)srb; 892afaf5a2dSDavid Somayajulu 893afaf5a2dSDavid Somayajulu return srb; 894afaf5a2dSDavid Somayajulu } 895afaf5a2dSDavid Somayajulu 896afaf5a2dSDavid Somayajulu static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 897afaf5a2dSDavid Somayajulu { 898afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 899afaf5a2dSDavid Somayajulu 900afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 9015f7186c8SFUJITA Tomonori scsi_dma_unmap(cmd); 902afaf5a2dSDavid Somayajulu srb->flags &= ~SRB_DMA_VALID; 903afaf5a2dSDavid Somayajulu } 9045369887aSVikas Chaudhary CMD_SP(cmd) = NULL; 905afaf5a2dSDavid Somayajulu } 906afaf5a2dSDavid Somayajulu 90709a0f719SVikas Chaudhary void qla4xxx_srb_compl(struct kref *ref) 908afaf5a2dSDavid Somayajulu { 90909a0f719SVikas Chaudhary struct srb *srb = container_of(ref, struct srb, srb_ref); 910afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 91109a0f719SVikas Chaudhary struct scsi_qla_host *ha = srb->ha; 912afaf5a2dSDavid Somayajulu 913afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 914afaf5a2dSDavid Somayajulu 915afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 916afaf5a2dSDavid Somayajulu 917afaf5a2dSDavid Somayajulu cmd->scsi_done(cmd); 918afaf5a2dSDavid Somayajulu } 919afaf5a2dSDavid Somayajulu 920afaf5a2dSDavid Somayajulu /** 921afaf5a2dSDavid Somayajulu * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 9228f0722caSVikas Chaudhary * @host: scsi host 923afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 924afaf5a2dSDavid Somayajulu * 925afaf5a2dSDavid Somayajulu * Remarks: 926afaf5a2dSDavid Somayajulu * This routine is invoked by Linux to send a SCSI command to the driver. 927afaf5a2dSDavid Somayajulu * The mid-level driver tries to ensure that queuecommand never gets 928afaf5a2dSDavid Somayajulu * invoked concurrently with itself or the interrupt handler (although 929afaf5a2dSDavid Somayajulu * the interrupt handler may call this routine as part of request- 930afaf5a2dSDavid Somayajulu * completion handling). Unfortunely, it sometimes calls the scheduler 931afaf5a2dSDavid Somayajulu * in interrupt context which is a big NO! NO!. 932afaf5a2dSDavid Somayajulu **/ 9338f0722caSVikas Chaudhary static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 934afaf5a2dSDavid Somayajulu { 9358f0722caSVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(host); 936afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 9377fb1921bSMike Christie struct iscsi_cls_session *sess = ddb_entry->sess; 938afaf5a2dSDavid Somayajulu struct srb *srb; 939afaf5a2dSDavid Somayajulu int rval; 940afaf5a2dSDavid Somayajulu 9412232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 9422232be0dSLalit Chandivade if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 9432232be0dSLalit Chandivade cmd->result = DID_NO_CONNECT << 16; 9442232be0dSLalit Chandivade else 9452232be0dSLalit Chandivade cmd->result = DID_REQUEUE << 16; 9462232be0dSLalit Chandivade goto qc_fail_command; 9472232be0dSLalit Chandivade } 9482232be0dSLalit Chandivade 9497fb1921bSMike Christie if (!sess) { 9507fb1921bSMike Christie cmd->result = DID_IMM_RETRY << 16; 9517fb1921bSMike Christie goto qc_fail_command; 9527fb1921bSMike Christie } 9537fb1921bSMike Christie 9547fb1921bSMike Christie rval = iscsi_session_chkready(sess); 9557fb1921bSMike Christie if (rval) { 9567fb1921bSMike Christie cmd->result = rval; 9577fb1921bSMike Christie goto qc_fail_command; 9587fb1921bSMike Christie } 9597fb1921bSMike Christie 960afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { 961afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD) { 962afaf5a2dSDavid Somayajulu cmd->result = DID_NO_CONNECT << 16; 963afaf5a2dSDavid Somayajulu goto qc_fail_command; 964afaf5a2dSDavid Somayajulu } 965c5e98e91SMike Christie return SCSI_MLQUEUE_TARGET_BUSY; 966afaf5a2dSDavid Somayajulu } 967afaf5a2dSDavid Somayajulu 968f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 969f4f5df23SVikas Chaudhary test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 970f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA, &ha->dpc_flags) || 971f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 972f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 973f4f5df23SVikas Chaudhary !test_bit(AF_ONLINE, &ha->flags) || 974f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 975477ffb9dSDavid C Somayajulu goto qc_host_busy; 976477ffb9dSDavid C Somayajulu 9778f0722caSVikas Chaudhary srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 978afaf5a2dSDavid Somayajulu if (!srb) 9798f0722caSVikas Chaudhary goto qc_host_busy; 980afaf5a2dSDavid Somayajulu 981afaf5a2dSDavid Somayajulu rval = qla4xxx_send_command_to_isp(ha, srb); 982afaf5a2dSDavid Somayajulu if (rval != QLA_SUCCESS) 983afaf5a2dSDavid Somayajulu goto qc_host_busy_free_sp; 984afaf5a2dSDavid Somayajulu 985afaf5a2dSDavid Somayajulu return 0; 986afaf5a2dSDavid Somayajulu 987afaf5a2dSDavid Somayajulu qc_host_busy_free_sp: 988afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 989afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 990afaf5a2dSDavid Somayajulu 991afaf5a2dSDavid Somayajulu qc_host_busy: 992afaf5a2dSDavid Somayajulu return SCSI_MLQUEUE_HOST_BUSY; 993afaf5a2dSDavid Somayajulu 994afaf5a2dSDavid Somayajulu qc_fail_command: 9958f0722caSVikas Chaudhary cmd->scsi_done(cmd); 996afaf5a2dSDavid Somayajulu 997afaf5a2dSDavid Somayajulu return 0; 998afaf5a2dSDavid Somayajulu } 999afaf5a2dSDavid Somayajulu 1000afaf5a2dSDavid Somayajulu /** 1001afaf5a2dSDavid Somayajulu * qla4xxx_mem_free - frees memory allocated to adapter 1002afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1003afaf5a2dSDavid Somayajulu * 1004afaf5a2dSDavid Somayajulu * Frees memory previously allocated by qla4xxx_mem_alloc 1005afaf5a2dSDavid Somayajulu **/ 1006afaf5a2dSDavid Somayajulu static void qla4xxx_mem_free(struct scsi_qla_host *ha) 1007afaf5a2dSDavid Somayajulu { 1008afaf5a2dSDavid Somayajulu if (ha->queues) 1009afaf5a2dSDavid Somayajulu dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 1010afaf5a2dSDavid Somayajulu ha->queues_dma); 1011afaf5a2dSDavid Somayajulu 1012afaf5a2dSDavid Somayajulu ha->queues_len = 0; 1013afaf5a2dSDavid Somayajulu ha->queues = NULL; 1014afaf5a2dSDavid Somayajulu ha->queues_dma = 0; 1015afaf5a2dSDavid Somayajulu ha->request_ring = NULL; 1016afaf5a2dSDavid Somayajulu ha->request_dma = 0; 1017afaf5a2dSDavid Somayajulu ha->response_ring = NULL; 1018afaf5a2dSDavid Somayajulu ha->response_dma = 0; 1019afaf5a2dSDavid Somayajulu ha->shadow_regs = NULL; 1020afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = 0; 1021afaf5a2dSDavid Somayajulu 1022afaf5a2dSDavid Somayajulu /* Free srb pool. */ 1023afaf5a2dSDavid Somayajulu if (ha->srb_mempool) 1024afaf5a2dSDavid Somayajulu mempool_destroy(ha->srb_mempool); 1025afaf5a2dSDavid Somayajulu 1026afaf5a2dSDavid Somayajulu ha->srb_mempool = NULL; 1027afaf5a2dSDavid Somayajulu 1028afaf5a2dSDavid Somayajulu /* release io space registers */ 1029f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1030f4f5df23SVikas Chaudhary if (ha->nx_pcibase) 1031f4f5df23SVikas Chaudhary iounmap( 1032f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)ha->nx_pcibase); 1033f4f5df23SVikas Chaudhary } else if (ha->reg) 1034afaf5a2dSDavid Somayajulu iounmap(ha->reg); 1035afaf5a2dSDavid Somayajulu pci_release_regions(ha->pdev); 1036afaf5a2dSDavid Somayajulu } 1037afaf5a2dSDavid Somayajulu 1038afaf5a2dSDavid Somayajulu /** 1039afaf5a2dSDavid Somayajulu * qla4xxx_mem_alloc - allocates memory for use by adapter. 1040afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 1041afaf5a2dSDavid Somayajulu * 1042afaf5a2dSDavid Somayajulu * Allocates DMA memory for request and response queues. Also allocates memory 1043afaf5a2dSDavid Somayajulu * for srbs. 1044afaf5a2dSDavid Somayajulu **/ 1045afaf5a2dSDavid Somayajulu static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 1046afaf5a2dSDavid Somayajulu { 1047afaf5a2dSDavid Somayajulu unsigned long align; 1048afaf5a2dSDavid Somayajulu 1049afaf5a2dSDavid Somayajulu /* Allocate contiguous block of DMA memory for queues. */ 1050afaf5a2dSDavid Somayajulu ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1051afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 1052afaf5a2dSDavid Somayajulu sizeof(struct shadow_regs) + 1053afaf5a2dSDavid Somayajulu MEM_ALIGN_VALUE + 1054afaf5a2dSDavid Somayajulu (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 1055afaf5a2dSDavid Somayajulu ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 1056afaf5a2dSDavid Somayajulu &ha->queues_dma, GFP_KERNEL); 1057afaf5a2dSDavid Somayajulu if (ha->queues == NULL) { 1058c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1059afaf5a2dSDavid Somayajulu "Memory Allocation failed - queues.\n"); 1060afaf5a2dSDavid Somayajulu 1061afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1062afaf5a2dSDavid Somayajulu } 1063afaf5a2dSDavid Somayajulu memset(ha->queues, 0, ha->queues_len); 1064afaf5a2dSDavid Somayajulu 1065afaf5a2dSDavid Somayajulu /* 1066afaf5a2dSDavid Somayajulu * As per RISC alignment requirements -- the bus-address must be a 1067afaf5a2dSDavid Somayajulu * multiple of the request-ring size (in bytes). 1068afaf5a2dSDavid Somayajulu */ 1069afaf5a2dSDavid Somayajulu align = 0; 1070afaf5a2dSDavid Somayajulu if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 1071afaf5a2dSDavid Somayajulu align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 1072afaf5a2dSDavid Somayajulu (MEM_ALIGN_VALUE - 1)); 1073afaf5a2dSDavid Somayajulu 1074afaf5a2dSDavid Somayajulu /* Update request and response queue pointers. */ 1075afaf5a2dSDavid Somayajulu ha->request_dma = ha->queues_dma + align; 1076afaf5a2dSDavid Somayajulu ha->request_ring = (struct queue_entry *) (ha->queues + align); 1077afaf5a2dSDavid Somayajulu ha->response_dma = ha->queues_dma + align + 1078afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 1079afaf5a2dSDavid Somayajulu ha->response_ring = (struct queue_entry *) (ha->queues + align + 1080afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1081afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1082afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = ha->queues_dma + align + 1083afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1084afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 1085afaf5a2dSDavid Somayajulu ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 1086afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1087afaf5a2dSDavid Somayajulu QUEUE_SIZE) + 1088afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * 1089afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1090afaf5a2dSDavid Somayajulu 1091afaf5a2dSDavid Somayajulu /* Allocate memory for srb pool. */ 1092afaf5a2dSDavid Somayajulu ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 1093afaf5a2dSDavid Somayajulu mempool_free_slab, srb_cachep); 1094afaf5a2dSDavid Somayajulu if (ha->srb_mempool == NULL) { 1095c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1096afaf5a2dSDavid Somayajulu "Memory Allocation failed - SRB Pool.\n"); 1097afaf5a2dSDavid Somayajulu 1098afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1099afaf5a2dSDavid Somayajulu } 1100afaf5a2dSDavid Somayajulu 1101afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 1102afaf5a2dSDavid Somayajulu 1103afaf5a2dSDavid Somayajulu mem_alloc_error_exit: 1104afaf5a2dSDavid Somayajulu qla4xxx_mem_free(ha); 1105afaf5a2dSDavid Somayajulu return QLA_ERROR; 1106afaf5a2dSDavid Somayajulu } 1107afaf5a2dSDavid Somayajulu 1108afaf5a2dSDavid Somayajulu /** 1109f4f5df23SVikas Chaudhary * qla4_8xxx_check_fw_alive - Check firmware health 1110f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1111f4f5df23SVikas Chaudhary * 1112f4f5df23SVikas Chaudhary * Context: Interrupt 1113f4f5df23SVikas Chaudhary **/ 1114f4f5df23SVikas Chaudhary static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 1115f4f5df23SVikas Chaudhary { 1116f4f5df23SVikas Chaudhary uint32_t fw_heartbeat_counter, halt_status; 1117f4f5df23SVikas Chaudhary 1118f4f5df23SVikas Chaudhary fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 11192232be0dSLalit Chandivade /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 11202232be0dSLalit Chandivade if (fw_heartbeat_counter == 0xffffffff) { 11212232be0dSLalit Chandivade DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 11222232be0dSLalit Chandivade "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 11232232be0dSLalit Chandivade ha->host_no, __func__)); 11242232be0dSLalit Chandivade return; 11252232be0dSLalit Chandivade } 1126f4f5df23SVikas Chaudhary 1127f4f5df23SVikas Chaudhary if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 1128f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat++; 1129f4f5df23SVikas Chaudhary /* FW not alive after 2 seconds */ 1130f4f5df23SVikas Chaudhary if (ha->seconds_since_last_heartbeat == 2) { 1131f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat = 0; 1132f4f5df23SVikas Chaudhary halt_status = qla4_8xxx_rd_32(ha, 1133f4f5df23SVikas Chaudhary QLA82XX_PEG_HALT_STATUS1); 113468d92ebfSVikas Chaudhary 113568d92ebfSVikas Chaudhary ql4_printk(KERN_INFO, ha, 113668d92ebfSVikas Chaudhary "scsi(%ld): %s, Dumping hw/fw registers:\n " 113768d92ebfSVikas Chaudhary " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:" 113868d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:" 113968d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:" 114068d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_4_PC: 0x%x\n", 114168d92ebfSVikas Chaudhary ha->host_no, __func__, halt_status, 114268d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, 114368d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 114468d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 114568d92ebfSVikas Chaudhary 0x3c), 114668d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 114768d92ebfSVikas Chaudhary 0x3c), 114868d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 114968d92ebfSVikas Chaudhary 0x3c), 115068d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 115168d92ebfSVikas Chaudhary 0x3c), 115268d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 115368d92ebfSVikas Chaudhary 0x3c)); 115421033639SNilesh Javali 1155f4f5df23SVikas Chaudhary /* Since we cannot change dev_state in interrupt 1156f4f5df23SVikas Chaudhary * context, set appropriate DPC flag then wakeup 1157f4f5df23SVikas Chaudhary * DPC */ 1158f4f5df23SVikas Chaudhary if (halt_status & HALT_STATUS_UNRECOVERABLE) 1159f4f5df23SVikas Chaudhary set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 1160f4f5df23SVikas Chaudhary else { 1161f4f5df23SVikas Chaudhary printk("scsi%ld: %s: detect abort needed!\n", 1162f4f5df23SVikas Chaudhary ha->host_no, __func__); 1163f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1164f4f5df23SVikas Chaudhary } 1165f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 116621033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 1167f4f5df23SVikas Chaudhary } 116899457d75SLalit Chandivade } else 116999457d75SLalit Chandivade ha->seconds_since_last_heartbeat = 0; 117099457d75SLalit Chandivade 1171f4f5df23SVikas Chaudhary ha->fw_heartbeat_counter = fw_heartbeat_counter; 1172f4f5df23SVikas Chaudhary } 1173f4f5df23SVikas Chaudhary 1174f4f5df23SVikas Chaudhary /** 1175f4f5df23SVikas Chaudhary * qla4_8xxx_watchdog - Poll dev state 1176f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1177f4f5df23SVikas Chaudhary * 1178f4f5df23SVikas Chaudhary * Context: Interrupt 1179f4f5df23SVikas Chaudhary **/ 1180f4f5df23SVikas Chaudhary void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 1181f4f5df23SVikas Chaudhary { 1182f4f5df23SVikas Chaudhary uint32_t dev_state; 1183f4f5df23SVikas Chaudhary 1184f4f5df23SVikas Chaudhary dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 1185f4f5df23SVikas Chaudhary 1186f4f5df23SVikas Chaudhary /* don't poll if reset is going on */ 1187d56a1f7bSLalit Chandivade if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1188d56a1f7bSLalit Chandivade test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1189977f46a4SVikas Chaudhary test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 1190f4f5df23SVikas Chaudhary if (dev_state == QLA82XX_DEV_NEED_RESET && 1191f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 11923930b8c1SVikas Chaudhary if (!ql4xdontresethba) { 11933930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: " 11943930b8c1SVikas Chaudhary "NEED RESET!\n", __func__); 1195f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1196f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 119721033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 11983930b8c1SVikas Chaudhary } 1199f4f5df23SVikas Chaudhary } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT && 1200f4f5df23SVikas Chaudhary !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 12013930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 12023930b8c1SVikas Chaudhary __func__); 1203f4f5df23SVikas Chaudhary set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 1204f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1205f4f5df23SVikas Chaudhary } else { 1206f4f5df23SVikas Chaudhary /* Check firmware health */ 1207f4f5df23SVikas Chaudhary qla4_8xxx_check_fw_alive(ha); 1208f4f5df23SVikas Chaudhary } 1209f4f5df23SVikas Chaudhary } 1210f4f5df23SVikas Chaudhary } 1211f4f5df23SVikas Chaudhary 1212f4f5df23SVikas Chaudhary /** 1213afaf5a2dSDavid Somayajulu * qla4xxx_timer - checks every second for work to do. 1214afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1215afaf5a2dSDavid Somayajulu **/ 1216afaf5a2dSDavid Somayajulu static void qla4xxx_timer(struct scsi_qla_host *ha) 1217afaf5a2dSDavid Somayajulu { 1218afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, *dtemp; 1219afaf5a2dSDavid Somayajulu int start_dpc = 0; 12202232be0dSLalit Chandivade uint16_t w; 12212232be0dSLalit Chandivade 12222232be0dSLalit Chandivade /* If we are in the middle of AER/EEH processing 12232232be0dSLalit Chandivade * skip any processing and reschedule the timer 12242232be0dSLalit Chandivade */ 12252232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 12262232be0dSLalit Chandivade mod_timer(&ha->timer, jiffies + HZ); 12272232be0dSLalit Chandivade return; 12282232be0dSLalit Chandivade } 12292232be0dSLalit Chandivade 12302232be0dSLalit Chandivade /* Hardware read to trigger an EEH error during mailbox waits. */ 12312232be0dSLalit Chandivade if (!pci_channel_offline(ha->pdev)) 12322232be0dSLalit Chandivade pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 1233afaf5a2dSDavid Somayajulu 1234f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1235f4f5df23SVikas Chaudhary qla4_8xxx_watchdog(ha); 1236f4f5df23SVikas Chaudhary } 1237f4f5df23SVikas Chaudhary 1238afaf5a2dSDavid Somayajulu /* Search for relogin's to time-out and port down retry. */ 1239afaf5a2dSDavid Somayajulu list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) { 1240afaf5a2dSDavid Somayajulu /* Count down time between sending relogins */ 1241afaf5a2dSDavid Somayajulu if (adapter_up(ha) && 1242afaf5a2dSDavid Somayajulu !test_bit(DF_RELOGIN, &ddb_entry->flags) && 1243afaf5a2dSDavid Somayajulu atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { 1244afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->retry_relogin_timer) != 1245afaf5a2dSDavid Somayajulu INVALID_ENTRY) { 1246afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->retry_relogin_timer) 1247afaf5a2dSDavid Somayajulu == 0) { 1248afaf5a2dSDavid Somayajulu atomic_set(&ddb_entry-> 1249afaf5a2dSDavid Somayajulu retry_relogin_timer, 1250afaf5a2dSDavid Somayajulu INVALID_ENTRY); 1251afaf5a2dSDavid Somayajulu set_bit(DPC_RELOGIN_DEVICE, 1252afaf5a2dSDavid Somayajulu &ha->dpc_flags); 1253afaf5a2dSDavid Somayajulu set_bit(DF_RELOGIN, &ddb_entry->flags); 1254f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: ddb [%d]" 1255afaf5a2dSDavid Somayajulu " login device\n", 1256afaf5a2dSDavid Somayajulu ha->host_no, __func__, 1257afaf5a2dSDavid Somayajulu ddb_entry->fw_ddb_index)); 1258afaf5a2dSDavid Somayajulu } else 1259afaf5a2dSDavid Somayajulu atomic_dec(&ddb_entry-> 1260afaf5a2dSDavid Somayajulu retry_relogin_timer); 1261afaf5a2dSDavid Somayajulu } 1262afaf5a2dSDavid Somayajulu } 1263afaf5a2dSDavid Somayajulu 1264afaf5a2dSDavid Somayajulu /* Wait for relogin to timeout */ 1265afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->relogin_timer) && 1266afaf5a2dSDavid Somayajulu (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 1267afaf5a2dSDavid Somayajulu /* 1268afaf5a2dSDavid Somayajulu * If the relogin times out and the device is 1269afaf5a2dSDavid Somayajulu * still NOT ONLINE then try and relogin again. 1270afaf5a2dSDavid Somayajulu */ 1271afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->state) != 1272afaf5a2dSDavid Somayajulu DDB_STATE_ONLINE && 1273afaf5a2dSDavid Somayajulu ddb_entry->fw_ddb_device_state == 1274afaf5a2dSDavid Somayajulu DDB_DS_SESSION_FAILED) { 1275afaf5a2dSDavid Somayajulu /* Reset retry relogin timer */ 1276afaf5a2dSDavid Somayajulu atomic_inc(&ddb_entry->relogin_retry_count); 1277f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: ddb [%d] relogin" 1278afaf5a2dSDavid Somayajulu " timed out-retrying" 1279afaf5a2dSDavid Somayajulu " relogin (%d)\n", 1280afaf5a2dSDavid Somayajulu ha->host_no, 1281afaf5a2dSDavid Somayajulu ddb_entry->fw_ddb_index, 1282afaf5a2dSDavid Somayajulu atomic_read(&ddb_entry-> 1283afaf5a2dSDavid Somayajulu relogin_retry_count)) 1284afaf5a2dSDavid Somayajulu ); 1285afaf5a2dSDavid Somayajulu start_dpc++; 1286f4f5df23SVikas Chaudhary DEBUG(printk("scsi%ld:%d:%d: ddb [%d] " 1287cd09b2c3SJustin P. Mattock "initiate relogin after" 1288afaf5a2dSDavid Somayajulu " %d seconds\n", 1289afaf5a2dSDavid Somayajulu ha->host_no, ddb_entry->bus, 1290afaf5a2dSDavid Somayajulu ddb_entry->target, 1291afaf5a2dSDavid Somayajulu ddb_entry->fw_ddb_index, 1292afaf5a2dSDavid Somayajulu ddb_entry->default_time2wait + 4) 1293afaf5a2dSDavid Somayajulu ); 1294afaf5a2dSDavid Somayajulu 1295afaf5a2dSDavid Somayajulu atomic_set(&ddb_entry->retry_relogin_timer, 1296afaf5a2dSDavid Somayajulu ddb_entry->default_time2wait + 4); 1297afaf5a2dSDavid Somayajulu } 1298afaf5a2dSDavid Somayajulu } 1299afaf5a2dSDavid Somayajulu } 1300afaf5a2dSDavid Somayajulu 1301f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 1302afaf5a2dSDavid Somayajulu /* Check for heartbeat interval. */ 1303afaf5a2dSDavid Somayajulu if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 1304afaf5a2dSDavid Somayajulu ha->heartbeat_interval != 0) { 1305afaf5a2dSDavid Somayajulu ha->seconds_since_last_heartbeat++; 1306afaf5a2dSDavid Somayajulu if (ha->seconds_since_last_heartbeat > 1307afaf5a2dSDavid Somayajulu ha->heartbeat_interval + 2) 1308afaf5a2dSDavid Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 1309afaf5a2dSDavid Somayajulu } 1310f4f5df23SVikas Chaudhary } 1311afaf5a2dSDavid Somayajulu 1312afaf5a2dSDavid Somayajulu /* Wakeup the dpc routine for this adapter, if needed. */ 13131b46807eSLalit Chandivade if (start_dpc || 1314afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1315afaf5a2dSDavid Somayajulu test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 1316afaf5a2dSDavid Somayajulu test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 1317f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 1318afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1319afaf5a2dSDavid Somayajulu test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 1320065aa1b4SVikas Chaudhary test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 1321f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1322f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 13231b46807eSLalit Chandivade test_bit(DPC_AEN, &ha->dpc_flags)) { 1324afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 1325afaf5a2dSDavid Somayajulu " - dpc flags = 0x%lx\n", 1326afaf5a2dSDavid Somayajulu ha->host_no, __func__, ha->dpc_flags)); 1327f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1328afaf5a2dSDavid Somayajulu } 1329afaf5a2dSDavid Somayajulu 1330afaf5a2dSDavid Somayajulu /* Reschedule timer thread to call us back in one second */ 1331afaf5a2dSDavid Somayajulu mod_timer(&ha->timer, jiffies + HZ); 1332afaf5a2dSDavid Somayajulu 1333afaf5a2dSDavid Somayajulu DEBUG2(ha->seconds_since_last_intr++); 1334afaf5a2dSDavid Somayajulu } 1335afaf5a2dSDavid Somayajulu 1336afaf5a2dSDavid Somayajulu /** 1337afaf5a2dSDavid Somayajulu * qla4xxx_cmd_wait - waits for all outstanding commands to complete 1338afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1339afaf5a2dSDavid Somayajulu * 1340afaf5a2dSDavid Somayajulu * This routine stalls the driver until all outstanding commands are returned. 1341afaf5a2dSDavid Somayajulu * Caller must release the Hardware Lock prior to calling this routine. 1342afaf5a2dSDavid Somayajulu **/ 1343afaf5a2dSDavid Somayajulu static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 1344afaf5a2dSDavid Somayajulu { 1345afaf5a2dSDavid Somayajulu uint32_t index = 0; 1346afaf5a2dSDavid Somayajulu unsigned long flags; 1347afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 1348afaf5a2dSDavid Somayajulu 1349f4f5df23SVikas Chaudhary unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 1350f4f5df23SVikas Chaudhary 1351f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 1352f4f5df23SVikas Chaudhary "complete\n", WAIT_CMD_TOV)); 1353f4f5df23SVikas Chaudhary 1354f4f5df23SVikas Chaudhary while (!time_after_eq(jiffies, wtime)) { 1355afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1356afaf5a2dSDavid Somayajulu /* Find a command that hasn't completed. */ 1357afaf5a2dSDavid Somayajulu for (index = 0; index < ha->host->can_queue; index++) { 1358afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, index); 1359a1e0063dSMike Christie /* 1360a1e0063dSMike Christie * We cannot just check if the index is valid, 1361a1e0063dSMike Christie * becase if we are run from the scsi eh, then 1362a1e0063dSMike Christie * the scsi/block layer is going to prevent 1363a1e0063dSMike Christie * the tag from being released. 1364a1e0063dSMike Christie */ 1365a1e0063dSMike Christie if (cmd != NULL && CMD_SP(cmd)) 1366afaf5a2dSDavid Somayajulu break; 1367afaf5a2dSDavid Somayajulu } 1368afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1369afaf5a2dSDavid Somayajulu 1370afaf5a2dSDavid Somayajulu /* If No Commands are pending, wait is complete */ 1371f4f5df23SVikas Chaudhary if (index == ha->host->can_queue) 1372f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1373afaf5a2dSDavid Somayajulu 1374afaf5a2dSDavid Somayajulu msleep(1000); 1375afaf5a2dSDavid Somayajulu } 1376f4f5df23SVikas Chaudhary /* If we timed out on waiting for commands to come back 1377f4f5df23SVikas Chaudhary * return ERROR. */ 1378f4f5df23SVikas Chaudhary return QLA_ERROR; 1379afaf5a2dSDavid Somayajulu } 1380afaf5a2dSDavid Somayajulu 1381f4f5df23SVikas Chaudhary int qla4xxx_hw_reset(struct scsi_qla_host *ha) 1382afaf5a2dSDavid Somayajulu { 1383afaf5a2dSDavid Somayajulu uint32_t ctrl_status; 1384477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1385477ffb9dSDavid C Somayajulu 1386477ffb9dSDavid C Somayajulu DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 1387afaf5a2dSDavid Somayajulu 1388f4f5df23SVikas Chaudhary if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 1389f4f5df23SVikas Chaudhary return QLA_ERROR; 1390f4f5df23SVikas Chaudhary 1391afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1392afaf5a2dSDavid Somayajulu 1393afaf5a2dSDavid Somayajulu /* 1394afaf5a2dSDavid Somayajulu * If the SCSI Reset Interrupt bit is set, clear it. 1395afaf5a2dSDavid Somayajulu * Otherwise, the Soft Reset won't work. 1396afaf5a2dSDavid Somayajulu */ 1397afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1398afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 1399afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1400afaf5a2dSDavid Somayajulu 1401afaf5a2dSDavid Somayajulu /* Issue Soft Reset */ 1402afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 1403afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1404afaf5a2dSDavid Somayajulu 1405afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1406f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1407477ffb9dSDavid C Somayajulu } 1408477ffb9dSDavid C Somayajulu 1409477ffb9dSDavid C Somayajulu /** 1410477ffb9dSDavid C Somayajulu * qla4xxx_soft_reset - performs soft reset. 1411477ffb9dSDavid C Somayajulu * @ha: Pointer to host adapter structure. 1412477ffb9dSDavid C Somayajulu **/ 1413477ffb9dSDavid C Somayajulu int qla4xxx_soft_reset(struct scsi_qla_host *ha) 1414477ffb9dSDavid C Somayajulu { 1415477ffb9dSDavid C Somayajulu uint32_t max_wait_time; 1416477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1417f931c534SVikas Chaudhary int status; 1418477ffb9dSDavid C Somayajulu uint32_t ctrl_status; 1419477ffb9dSDavid C Somayajulu 1420f931c534SVikas Chaudhary status = qla4xxx_hw_reset(ha); 1421f931c534SVikas Chaudhary if (status != QLA_SUCCESS) 1422f931c534SVikas Chaudhary return status; 1423afaf5a2dSDavid Somayajulu 1424f931c534SVikas Chaudhary status = QLA_ERROR; 1425afaf5a2dSDavid Somayajulu /* Wait until the Network Reset Intr bit is cleared */ 1426afaf5a2dSDavid Somayajulu max_wait_time = RESET_INTR_TOV; 1427afaf5a2dSDavid Somayajulu do { 1428afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1429afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1430afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1431afaf5a2dSDavid Somayajulu 1432afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 1433afaf5a2dSDavid Somayajulu break; 1434afaf5a2dSDavid Somayajulu 1435afaf5a2dSDavid Somayajulu msleep(1000); 1436afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1437afaf5a2dSDavid Somayajulu 1438afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 1439afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_WARNING 1440afaf5a2dSDavid Somayajulu "scsi%ld: Network Reset Intr not cleared by " 1441afaf5a2dSDavid Somayajulu "Network function, clearing it now!\n", 1442afaf5a2dSDavid Somayajulu ha->host_no)); 1443afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1444afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 1445afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1446afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1447afaf5a2dSDavid Somayajulu } 1448afaf5a2dSDavid Somayajulu 1449afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 1450afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 1451afaf5a2dSDavid Somayajulu do { 1452afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1453afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1454afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1455afaf5a2dSDavid Somayajulu 1456afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SOFT_RESET) == 0) { 1457afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 1458afaf5a2dSDavid Somayajulu break; 1459afaf5a2dSDavid Somayajulu } 1460afaf5a2dSDavid Somayajulu 1461afaf5a2dSDavid Somayajulu msleep(1000); 1462afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1463afaf5a2dSDavid Somayajulu 1464afaf5a2dSDavid Somayajulu /* 1465afaf5a2dSDavid Somayajulu * Also, make sure that the SCSI Reset Interrupt bit has been cleared 1466afaf5a2dSDavid Somayajulu * after the soft reset has taken place. 1467afaf5a2dSDavid Somayajulu */ 1468afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1469afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1470afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 1471afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1472afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1473afaf5a2dSDavid Somayajulu } 1474afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1475afaf5a2dSDavid Somayajulu 1476afaf5a2dSDavid Somayajulu /* If soft reset fails then most probably the bios on other 1477afaf5a2dSDavid Somayajulu * function is also enabled. 1478afaf5a2dSDavid Somayajulu * Since the initialization is sequential the other fn 1479afaf5a2dSDavid Somayajulu * wont be able to acknowledge the soft reset. 1480afaf5a2dSDavid Somayajulu * Issue a force soft reset to workaround this scenario. 1481afaf5a2dSDavid Somayajulu */ 1482afaf5a2dSDavid Somayajulu if (max_wait_time == 0) { 1483afaf5a2dSDavid Somayajulu /* Issue Force Soft Reset */ 1484afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1485afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 1486afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1487afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1488afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 1489afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 1490afaf5a2dSDavid Somayajulu do { 1491afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1492afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1493afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1494afaf5a2dSDavid Somayajulu 1495afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 1496afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 1497afaf5a2dSDavid Somayajulu break; 1498afaf5a2dSDavid Somayajulu } 1499afaf5a2dSDavid Somayajulu 1500afaf5a2dSDavid Somayajulu msleep(1000); 1501afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1502afaf5a2dSDavid Somayajulu } 1503afaf5a2dSDavid Somayajulu 1504afaf5a2dSDavid Somayajulu return status; 1505afaf5a2dSDavid Somayajulu } 1506afaf5a2dSDavid Somayajulu 1507afaf5a2dSDavid Somayajulu /** 1508f4f5df23SVikas Chaudhary * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 1509afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1510f4f5df23SVikas Chaudhary * @res: returned scsi status 1511afaf5a2dSDavid Somayajulu * 1512afaf5a2dSDavid Somayajulu * This routine is called just prior to a HARD RESET to return all 1513afaf5a2dSDavid Somayajulu * outstanding commands back to the Operating System. 1514afaf5a2dSDavid Somayajulu * Caller should make sure that the following locks are released 1515afaf5a2dSDavid Somayajulu * before this calling routine: Hardware lock, and io_request_lock. 1516afaf5a2dSDavid Somayajulu **/ 1517f4f5df23SVikas Chaudhary static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 1518afaf5a2dSDavid Somayajulu { 1519afaf5a2dSDavid Somayajulu struct srb *srb; 1520afaf5a2dSDavid Somayajulu int i; 1521afaf5a2dSDavid Somayajulu unsigned long flags; 1522afaf5a2dSDavid Somayajulu 1523afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1524afaf5a2dSDavid Somayajulu for (i = 0; i < ha->host->can_queue; i++) { 1525afaf5a2dSDavid Somayajulu srb = qla4xxx_del_from_active_array(ha, i); 1526afaf5a2dSDavid Somayajulu if (srb != NULL) { 1527f4f5df23SVikas Chaudhary srb->cmd->result = res; 152809a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 1529afaf5a2dSDavid Somayajulu } 1530afaf5a2dSDavid Somayajulu } 1531afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1532afaf5a2dSDavid Somayajulu } 1533afaf5a2dSDavid Somayajulu 1534f4f5df23SVikas Chaudhary void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 1535f4f5df23SVikas Chaudhary { 1536f4f5df23SVikas Chaudhary clear_bit(AF_ONLINE, &ha->flags); 1537f4f5df23SVikas Chaudhary 1538f4f5df23SVikas Chaudhary /* Disable the board */ 1539f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 1540f4f5df23SVikas Chaudhary 1541f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 1542f4f5df23SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 1543f4f5df23SVikas Chaudhary clear_bit(AF_INIT_DONE, &ha->flags); 1544f4f5df23SVikas Chaudhary } 1545f4f5df23SVikas Chaudhary 1546afaf5a2dSDavid Somayajulu /** 1547afaf5a2dSDavid Somayajulu * qla4xxx_recover_adapter - recovers adapter after a fatal error 1548afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1549afaf5a2dSDavid Somayajulu **/ 1550f4f5df23SVikas Chaudhary static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 1551afaf5a2dSDavid Somayajulu { 1552f4f5df23SVikas Chaudhary int status = QLA_ERROR; 1553f4f5df23SVikas Chaudhary uint8_t reset_chip = 0; 1554afaf5a2dSDavid Somayajulu 1555afaf5a2dSDavid Somayajulu /* Stall incoming I/O until we are done */ 1556f4f5df23SVikas Chaudhary scsi_block_requests(ha->host); 1557afaf5a2dSDavid Somayajulu clear_bit(AF_ONLINE, &ha->flags); 155850a29aecSMike Christie 1559f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 1560afaf5a2dSDavid Somayajulu 1561f4f5df23SVikas Chaudhary set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 1562afaf5a2dSDavid Somayajulu 1563f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 1564f4f5df23SVikas Chaudhary reset_chip = 1; 1565afaf5a2dSDavid Somayajulu 1566f4f5df23SVikas Chaudhary /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 1567f4f5df23SVikas Chaudhary * do not reset adapter, jump to initialize_adapter */ 1568f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 1569f4f5df23SVikas Chaudhary status = QLA_SUCCESS; 1570f4f5df23SVikas Chaudhary goto recover_ha_init_adapter; 1571afaf5a2dSDavid Somayajulu } 1572afaf5a2dSDavid Somayajulu 1573f4f5df23SVikas Chaudhary /* For the ISP-82xx adapter, issue a stop_firmware if invoked 1574f4f5df23SVikas Chaudhary * from eh_host_reset or ioctl module */ 1575f4f5df23SVikas Chaudhary if (is_qla8022(ha) && !reset_chip && 1576f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 1577f4f5df23SVikas Chaudhary 1578f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 1579f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing stop_firmware...\n", 1580f4f5df23SVikas Chaudhary ha->host_no, __func__)); 1581f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_firmware(ha); 1582f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 15832bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 1584f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 1585f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 1586f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 1587f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 1588f4f5df23SVikas Chaudhary } else { 1589f4f5df23SVikas Chaudhary /* If the stop_firmware fails then 1590f4f5df23SVikas Chaudhary * reset the entire chip */ 1591f4f5df23SVikas Chaudhary reset_chip = 1; 1592f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 1593f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1594f4f5df23SVikas Chaudhary } 1595f4f5df23SVikas Chaudhary } 1596f4f5df23SVikas Chaudhary 1597f4f5df23SVikas Chaudhary /* Issue full chip reset if recovering from a catastrophic error, 1598f4f5df23SVikas Chaudhary * or if stop_firmware fails for ISP-82xx. 1599f4f5df23SVikas Chaudhary * This is the default case for ISP-4xxx */ 1600f4f5df23SVikas Chaudhary if (!is_qla8022(ha) || reset_chip) { 16012bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 1602f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 1603f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 1604f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 1605f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 1606f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing chip reset..\n", 1607f4f5df23SVikas Chaudhary ha->host_no, __func__)); 1608f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_chip(ha); 1609f4f5df23SVikas Chaudhary } 1610f4f5df23SVikas Chaudhary 1611f4f5df23SVikas Chaudhary /* Flush any pending ddb changed AENs */ 1612f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 1613f4f5df23SVikas Chaudhary 1614f4f5df23SVikas Chaudhary recover_ha_init_adapter: 1615f4f5df23SVikas Chaudhary /* Upon successful firmware/chip reset, re-initialize the adapter */ 1616f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 1617f4f5df23SVikas Chaudhary /* For ISP-4xxx, force function 1 to always initialize 1618f4f5df23SVikas Chaudhary * before function 3 to prevent both funcions from 1619f4f5df23SVikas Chaudhary * stepping on top of the other */ 1620f4f5df23SVikas Chaudhary if (!is_qla8022(ha) && (ha->mac_index == 3)) 1621f4f5df23SVikas Chaudhary ssleep(6); 1622f4f5df23SVikas Chaudhary 1623f4f5df23SVikas Chaudhary /* NOTE: AF_ONLINE flag set upon successful completion of 1624f4f5df23SVikas Chaudhary * qla4xxx_initialize_adapter */ 1625f4f5df23SVikas Chaudhary status = qla4xxx_initialize_adapter(ha, PRESERVE_DDB_LIST); 1626f4f5df23SVikas Chaudhary } 1627f4f5df23SVikas Chaudhary 1628f4f5df23SVikas Chaudhary /* Retry failed adapter initialization, if necessary 1629f4f5df23SVikas Chaudhary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 1630f4f5df23SVikas Chaudhary * case to prevent ping-pong resets between functions */ 1631f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags) && 1632f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 1633afaf5a2dSDavid Somayajulu /* Adapter initialization failed, see if we can retry 1634f4f5df23SVikas Chaudhary * resetting the ha. 1635f4f5df23SVikas Chaudhary * Since we don't want to block the DPC for too long 1636f4f5df23SVikas Chaudhary * with multiple resets in the same thread, 1637f4f5df23SVikas Chaudhary * utilize DPC to retry */ 1638afaf5a2dSDavid Somayajulu if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 1639afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 1640afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - retrying " 1641afaf5a2dSDavid Somayajulu "(%d) more times\n", ha->host_no, 1642afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 1643afaf5a2dSDavid Somayajulu set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 1644afaf5a2dSDavid Somayajulu status = QLA_ERROR; 1645afaf5a2dSDavid Somayajulu } else { 1646afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt > 0) { 1647afaf5a2dSDavid Somayajulu /* Schedule another Reset HA--DPC will retry */ 1648afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt--; 1649afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - " 1650afaf5a2dSDavid Somayajulu "retry remaining %d\n", 1651afaf5a2dSDavid Somayajulu ha->host_no, 1652afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 1653afaf5a2dSDavid Somayajulu status = QLA_ERROR; 1654afaf5a2dSDavid Somayajulu } 1655afaf5a2dSDavid Somayajulu 1656afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt == 0) { 1657afaf5a2dSDavid Somayajulu /* Recover adapter retries have been exhausted. 1658afaf5a2dSDavid Somayajulu * Adapter DEAD */ 1659afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter " 1660afaf5a2dSDavid Somayajulu "failed - board disabled\n", 1661afaf5a2dSDavid Somayajulu ha->host_no)); 1662f4f5df23SVikas Chaudhary qla4xxx_dead_adapter_cleanup(ha); 1663afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 1664afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 1665f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, 1666afaf5a2dSDavid Somayajulu &ha->dpc_flags); 1667afaf5a2dSDavid Somayajulu status = QLA_ERROR; 1668afaf5a2dSDavid Somayajulu } 1669afaf5a2dSDavid Somayajulu } 1670afaf5a2dSDavid Somayajulu } else { 1671afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 1672f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 1673afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 1674afaf5a2dSDavid Somayajulu } 1675afaf5a2dSDavid Somayajulu 1676afaf5a2dSDavid Somayajulu ha->adapter_error_count++; 1677afaf5a2dSDavid Somayajulu 1678f4f5df23SVikas Chaudhary if (test_bit(AF_ONLINE, &ha->flags)) 1679f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 1680afaf5a2dSDavid Somayajulu 1681f4f5df23SVikas Chaudhary scsi_unblock_requests(ha->host); 1682f4f5df23SVikas Chaudhary 1683f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 1684f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 168525985edcSLucas De Marchi status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 1686f4f5df23SVikas Chaudhary 1687afaf5a2dSDavid Somayajulu return status; 1688afaf5a2dSDavid Somayajulu } 1689afaf5a2dSDavid Somayajulu 16902d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 16912d7924e6SVikas Chaudhary { 16922d7924e6SVikas Chaudhary struct ddb_entry *ddb_entry, *dtemp; 16932d7924e6SVikas Chaudhary 16942d7924e6SVikas Chaudhary list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) { 16952d7924e6SVikas Chaudhary if ((atomic_read(&ddb_entry->state) == DDB_STATE_MISSING) || 16962d7924e6SVikas Chaudhary (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD)) { 16972d7924e6SVikas Chaudhary if (ddb_entry->fw_ddb_device_state == 16982d7924e6SVikas Chaudhary DDB_DS_SESSION_ACTIVE) { 16992d7924e6SVikas Chaudhary atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); 17002d7924e6SVikas Chaudhary ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 17012d7924e6SVikas Chaudhary " marked ONLINE\n", ha->host_no, __func__, 17022d7924e6SVikas Chaudhary ddb_entry->fw_ddb_index); 17032d7924e6SVikas Chaudhary 17042d7924e6SVikas Chaudhary iscsi_unblock_session(ddb_entry->sess); 17052d7924e6SVikas Chaudhary } else 17062d7924e6SVikas Chaudhary qla4xxx_relogin_device(ha, ddb_entry); 17072d7924e6SVikas Chaudhary } 17082d7924e6SVikas Chaudhary } 17092d7924e6SVikas Chaudhary } 17102d7924e6SVikas Chaudhary 1711f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 1712f4f5df23SVikas Chaudhary { 17131b46807eSLalit Chandivade if (ha->dpc_thread) 1714f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 1715f4f5df23SVikas Chaudhary } 1716f4f5df23SVikas Chaudhary 1717afaf5a2dSDavid Somayajulu /** 1718afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 1719afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 1720afaf5a2dSDavid Somayajulu * 1721afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 1722afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 1723afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 1724afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 1725afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 1726afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 1727afaf5a2dSDavid Somayajulu **/ 1728c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 1729afaf5a2dSDavid Somayajulu { 1730c4028958SDavid Howells struct scsi_qla_host *ha = 1731c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 1732afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, *dtemp; 1733477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 1734afaf5a2dSDavid Somayajulu 1735f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 1736f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 1737f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 1738afaf5a2dSDavid Somayajulu 1739afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 1740afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 17411b46807eSLalit Chandivade return; 1742afaf5a2dSDavid Somayajulu 17432232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 17442232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 17452232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 17461b46807eSLalit Chandivade return; 17472232be0dSLalit Chandivade } 17482232be0dSLalit Chandivade 1749f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1750f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 1751f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 1752f4f5df23SVikas Chaudhary qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 1753f4f5df23SVikas Chaudhary QLA82XX_DEV_FAILED); 1754f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 1755f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 1756f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 1757f4f5df23SVikas Chaudhary } 1758f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 1759f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 1760f4f5df23SVikas Chaudhary } 1761f4f5df23SVikas Chaudhary } 1762f4f5df23SVikas Chaudhary 1763f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 1764f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1765afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1766f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 1767f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 1768f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 1769f4f5df23SVikas Chaudhary ha->host_no, __func__)); 1770f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 1771f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 1772f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 1773f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 1774f4f5df23SVikas Chaudhary } 1775f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 1776f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 1777f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 1778afaf5a2dSDavid Somayajulu 1779477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 1780afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 1781afaf5a2dSDavid Somayajulu 1782afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 1783afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 1784afaf5a2dSDavid Somayajulu if (--wait_time == 0) 1785afaf5a2dSDavid Somayajulu break; 1786afaf5a2dSDavid Somayajulu msleep(1000); 1787afaf5a2dSDavid Somayajulu } 1788afaf5a2dSDavid Somayajulu if (wait_time == 0) 1789afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 1790afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 1791afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 1792f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 1793477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 1794477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 1795f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 1796477ffb9dSDavid C Somayajulu } 1797477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 1798477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 1799f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 1800afaf5a2dSDavid Somayajulu } 1801afaf5a2dSDavid Somayajulu } 1802afaf5a2dSDavid Somayajulu 1803f4f5df23SVikas Chaudhary dpc_post_reset_ha: 1804afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 1805afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 1806afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 1807afaf5a2dSDavid Somayajulu 1808afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 1809afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 1810afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 1811afaf5a2dSDavid Somayajulu 1812065aa1b4SVikas Chaudhary /* ---- link change? --- */ 1813065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 1814065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 1815065aa1b4SVikas Chaudhary /* ---- link down? --- */ 18162d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 1817065aa1b4SVikas Chaudhary } else { 1818065aa1b4SVikas Chaudhary /* ---- link up? --- * 1819065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 1820065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 1821065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 1822065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 1823065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 1824065aa1b4SVikas Chaudhary 18252d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 1826065aa1b4SVikas Chaudhary } 1827065aa1b4SVikas Chaudhary } 1828065aa1b4SVikas Chaudhary 1829afaf5a2dSDavid Somayajulu /* ---- relogin device? --- */ 1830afaf5a2dSDavid Somayajulu if (adapter_up(ha) && 1831afaf5a2dSDavid Somayajulu test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 1832afaf5a2dSDavid Somayajulu list_for_each_entry_safe(ddb_entry, dtemp, 1833afaf5a2dSDavid Somayajulu &ha->ddb_list, list) { 1834afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 1835afaf5a2dSDavid Somayajulu atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) 1836afaf5a2dSDavid Somayajulu qla4xxx_relogin_device(ha, ddb_entry); 1837afaf5a2dSDavid Somayajulu 1838afaf5a2dSDavid Somayajulu /* 1839afaf5a2dSDavid Somayajulu * If mbx cmd times out there is no point 1840afaf5a2dSDavid Somayajulu * in continuing further. 1841afaf5a2dSDavid Somayajulu * With large no of targets this can hang 1842afaf5a2dSDavid Somayajulu * the system. 1843afaf5a2dSDavid Somayajulu */ 1844afaf5a2dSDavid Somayajulu if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 1845afaf5a2dSDavid Somayajulu printk(KERN_WARNING "scsi%ld: %s: " 1846afaf5a2dSDavid Somayajulu "need to reset hba\n", 1847afaf5a2dSDavid Somayajulu ha->host_no, __func__); 1848afaf5a2dSDavid Somayajulu break; 1849afaf5a2dSDavid Somayajulu } 1850afaf5a2dSDavid Somayajulu } 1851afaf5a2dSDavid Somayajulu } 18520753b487SVikas Chaudhary 1853afaf5a2dSDavid Somayajulu } 1854afaf5a2dSDavid Somayajulu 1855afaf5a2dSDavid Somayajulu /** 1856afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 1857afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 1858afaf5a2dSDavid Somayajulu **/ 1859afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 1860afaf5a2dSDavid Somayajulu { 1861afaf5a2dSDavid Somayajulu 1862afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 1863afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 1864f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 1865afaf5a2dSDavid Somayajulu } 1866afaf5a2dSDavid Somayajulu 1867afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 1868afaf5a2dSDavid Somayajulu if (ha->timer_active) 1869afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 1870afaf5a2dSDavid Somayajulu 1871f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 1872f4f5df23SVikas Chaudhary if (ha->dpc_thread) 1873f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 1874f4f5df23SVikas Chaudhary 1875f4f5df23SVikas Chaudhary /* Put firmware in known state */ 1876f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 1877f4f5df23SVikas Chaudhary 1878f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1879f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 1880f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 1881f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 1882f4f5df23SVikas Chaudhary } 1883f4f5df23SVikas Chaudhary 1884afaf5a2dSDavid Somayajulu /* Detach interrupts */ 1885afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 1886f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 1887afaf5a2dSDavid Somayajulu 1888bee4fe8eSDavid C Somayajulu /* free extra memory */ 1889bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 1890f4f5df23SVikas Chaudhary } 1891bee4fe8eSDavid C Somayajulu 1892f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 1893f4f5df23SVikas Chaudhary { 1894f4f5df23SVikas Chaudhary int status = 0; 1895f4f5df23SVikas Chaudhary uint8_t revision_id; 1896f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 1897f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 1898afaf5a2dSDavid Somayajulu 1899f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 1900f4f5df23SVikas Chaudhary if (status) { 1901f4f5df23SVikas Chaudhary printk(KERN_WARNING 1902f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 1903f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 1904f4f5df23SVikas Chaudhary goto iospace_error_exit; 1905f4f5df23SVikas Chaudhary } 1906f4f5df23SVikas Chaudhary 1907f4f5df23SVikas Chaudhary pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id); 1908f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 1909f4f5df23SVikas Chaudhary __func__, revision_id)); 1910f4f5df23SVikas Chaudhary ha->revision_id = revision_id; 1911f4f5df23SVikas Chaudhary 1912f4f5df23SVikas Chaudhary /* remap phys address */ 1913f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 1914f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 1915f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 1916f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 1917f4f5df23SVikas Chaudhary 1918f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 1919f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 1920f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 1921f4f5df23SVikas Chaudhary printk(KERN_ERR 1922f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 1923f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 1924f4f5df23SVikas Chaudhary goto iospace_error_exit; 1925f4f5df23SVikas Chaudhary } 1926f4f5df23SVikas Chaudhary 1927f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 1928f4f5df23SVikas Chaudhary 1929f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 1930f4f5df23SVikas Chaudhary ha->qla4_8xxx_reg = 1931f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 1932f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 1933f4f5df23SVikas Chaudhary 1934f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 1935f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 1936f4f5df23SVikas Chaudhary 19372657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 19382657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 1939f4f5df23SVikas Chaudhary 19402657c800SShyam Sundar return 0; 1941f4f5df23SVikas Chaudhary iospace_error_exit: 1942f4f5df23SVikas Chaudhary return -ENOMEM; 1943afaf5a2dSDavid Somayajulu } 1944afaf5a2dSDavid Somayajulu 1945afaf5a2dSDavid Somayajulu /*** 1946afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 1947afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 1948afaf5a2dSDavid Somayajulu * 1949afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 1950afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 1951afaf5a2dSDavid Somayajulu **/ 1952f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 1953afaf5a2dSDavid Somayajulu { 1954afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 1955afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 1956afaf5a2dSDavid Somayajulu 1957afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 1958afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 1959afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 1960afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 1961afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 1962c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1963afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 1964afaf5a2dSDavid Somayajulu pio = 0; 1965afaf5a2dSDavid Somayajulu } 1966afaf5a2dSDavid Somayajulu } else { 1967c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 1968afaf5a2dSDavid Somayajulu pio = 0; 1969afaf5a2dSDavid Somayajulu } 1970afaf5a2dSDavid Somayajulu 1971afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 1972afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 1973afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 1974afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 1975afaf5a2dSDavid Somayajulu 1976afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 1977c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 1978afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 1979afaf5a2dSDavid Somayajulu 1980afaf5a2dSDavid Somayajulu goto iospace_error_exit; 1981afaf5a2dSDavid Somayajulu } 1982c2660df3SVikas Chaudhary 1983afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 1984c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 1985afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 1986afaf5a2dSDavid Somayajulu goto iospace_error_exit; 1987afaf5a2dSDavid Somayajulu } 1988afaf5a2dSDavid Somayajulu 1989afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 1990c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1991afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 1992afaf5a2dSDavid Somayajulu 1993afaf5a2dSDavid Somayajulu goto iospace_error_exit; 1994afaf5a2dSDavid Somayajulu } 1995afaf5a2dSDavid Somayajulu 1996afaf5a2dSDavid Somayajulu ha->pio_address = pio; 1997afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 1998afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 1999afaf5a2dSDavid Somayajulu if (!ha->reg) { 2000c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2001afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 2002afaf5a2dSDavid Somayajulu 2003afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2004afaf5a2dSDavid Somayajulu } 2005afaf5a2dSDavid Somayajulu 2006afaf5a2dSDavid Somayajulu return 0; 2007afaf5a2dSDavid Somayajulu 2008afaf5a2dSDavid Somayajulu iospace_error_exit: 2009afaf5a2dSDavid Somayajulu return -ENOMEM; 2010afaf5a2dSDavid Somayajulu } 2011afaf5a2dSDavid Somayajulu 2012f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 2013f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 2014f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 2015f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 2016f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 2017f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 2018f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 2019f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 2020f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 2021f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 2022f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 2023f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 2024f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 2025f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 2026f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 2027f4f5df23SVikas Chaudhary }; 2028f4f5df23SVikas Chaudhary 2029f4f5df23SVikas Chaudhary static struct isp_operations qla4_8xxx_isp_ops = { 2030f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 2031f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 2032f4f5df23SVikas Chaudhary .disable_intrs = qla4_8xxx_disable_intrs, 2033f4f5df23SVikas Chaudhary .enable_intrs = qla4_8xxx_enable_intrs, 2034f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 2035f4f5df23SVikas Chaudhary .intr_handler = qla4_8xxx_intr_handler, 2036f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4_8xxx_interrupt_service_routine, 2037f4f5df23SVikas Chaudhary .reset_chip = qla4_8xxx_isp_reset, 2038f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 2039f4f5df23SVikas Chaudhary .queue_iocb = qla4_8xxx_queue_iocb, 2040f4f5df23SVikas Chaudhary .complete_iocb = qla4_8xxx_complete_iocb, 2041f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out, 2042f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in, 2043f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 2044f4f5df23SVikas Chaudhary }; 2045f4f5df23SVikas Chaudhary 2046f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2047f4f5df23SVikas Chaudhary { 2048f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 2049f4f5df23SVikas Chaudhary } 2050f4f5df23SVikas Chaudhary 2051f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2052f4f5df23SVikas Chaudhary { 2053f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out)); 2054f4f5df23SVikas Chaudhary } 2055f4f5df23SVikas Chaudhary 2056f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2057f4f5df23SVikas Chaudhary { 2058f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 2059f4f5df23SVikas Chaudhary } 2060f4f5df23SVikas Chaudhary 2061f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2062f4f5df23SVikas Chaudhary { 2063f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in)); 2064f4f5df23SVikas Chaudhary } 2065f4f5df23SVikas Chaudhary 2066afaf5a2dSDavid Somayajulu /** 2067afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 2068afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 2069afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 2070afaf5a2dSDavid Somayajulu * 2071afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 2072afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 2073afaf5a2dSDavid Somayajulu * the driver. 2074afaf5a2dSDavid Somayajulu **/ 2075afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 2076afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 2077afaf5a2dSDavid Somayajulu { 2078afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 2079afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 2080afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 2081afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 2082afaf5a2dSDavid Somayajulu char buf[34]; 2083f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 2084f9880e76SPrasanna Mumbai uint32_t dev_state; 2085afaf5a2dSDavid Somayajulu 2086afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 2087afaf5a2dSDavid Somayajulu return -1; 2088afaf5a2dSDavid Somayajulu 2089afaf5a2dSDavid Somayajulu host = scsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha)); 2090afaf5a2dSDavid Somayajulu if (host == NULL) { 2091afaf5a2dSDavid Somayajulu printk(KERN_WARNING 2092afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 2093afaf5a2dSDavid Somayajulu goto probe_disable_device; 2094afaf5a2dSDavid Somayajulu } 2095afaf5a2dSDavid Somayajulu 2096afaf5a2dSDavid Somayajulu /* Clear our data area */ 2097afaf5a2dSDavid Somayajulu ha = (struct scsi_qla_host *) host->hostdata; 2098afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 2099afaf5a2dSDavid Somayajulu 2100afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 2101afaf5a2dSDavid Somayajulu ha->pdev = pdev; 2102afaf5a2dSDavid Somayajulu ha->host = host; 2103afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 2104afaf5a2dSDavid Somayajulu 21052232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 21062232be0dSLalit Chandivade 2107f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 2108f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2109f4f5df23SVikas Chaudhary ha->isp_ops = &qla4_8xxx_isp_ops; 2110f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 2111f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 2112f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 2113f4f5df23SVikas Chaudhary ha->curr_window = 255; 2114f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 2115f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 2116f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 2117f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 2118f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 2119f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 2120f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 2121f4f5df23SVikas Chaudhary } else { 2122f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 2123f4f5df23SVikas Chaudhary } 2124f4f5df23SVikas Chaudhary 21252232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 21262232be0dSLalit Chandivade if (is_qla8022(ha)) 21272232be0dSLalit Chandivade pdev->needs_freset = 1; 21282232be0dSLalit Chandivade 2129afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 2130f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 2131afaf5a2dSDavid Somayajulu if (ret) 2132f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 2133afaf5a2dSDavid Somayajulu 2134c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 2135afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 2136afaf5a2dSDavid Somayajulu 2137afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 2138afaf5a2dSDavid Somayajulu 2139afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 2140afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->ddb_list); 2141afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 2142afaf5a2dSDavid Somayajulu 2143afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 2144f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 2145afaf5a2dSDavid Somayajulu 2146afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 2147afaf5a2dSDavid Somayajulu 2148afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 2149afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 2150c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2151afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 2152afaf5a2dSDavid Somayajulu 2153afaf5a2dSDavid Somayajulu ret = -ENOMEM; 2154afaf5a2dSDavid Somayajulu goto probe_failed; 2155afaf5a2dSDavid Somayajulu } 2156afaf5a2dSDavid Somayajulu 2157f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 2158f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 2159f4f5df23SVikas Chaudhary 2160afaf5a2dSDavid Somayajulu /* 2161afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 2162afaf5a2dSDavid Somayajulu * firmware 2163afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 2164afaf5a2dSDavid Somayajulu */ 2165afaf5a2dSDavid Somayajulu status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST); 2166f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 2167f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 2168f9880e76SPrasanna Mumbai 2169f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 2170f9880e76SPrasanna Mumbai qla4_8xxx_idc_lock(ha); 2171f9880e76SPrasanna Mumbai dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 2172f9880e76SPrasanna Mumbai qla4_8xxx_idc_unlock(ha); 2173f9880e76SPrasanna Mumbai if (dev_state == QLA82XX_DEV_FAILED) { 2174f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 2175f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 2176f9880e76SPrasanna Mumbai __func__); 2177f9880e76SPrasanna Mumbai break; 2178f9880e76SPrasanna Mumbai } 2179f9880e76SPrasanna Mumbai } 2180afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 2181afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 2182f4f5df23SVikas Chaudhary 2183f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 2184f4f5df23SVikas Chaudhary continue; 2185f4f5df23SVikas Chaudhary 2186afaf5a2dSDavid Somayajulu status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST); 2187afaf5a2dSDavid Somayajulu } 2188f4f5df23SVikas Chaudhary 2189f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 2190c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 2191afaf5a2dSDavid Somayajulu 2192fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 2193fe998527SLalit Chandivade /* Put the device in failed state. */ 2194fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 2195fe998527SLalit Chandivade qla4_8xxx_idc_lock(ha); 2196fe998527SLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 2197fe998527SLalit Chandivade QLA82XX_DEV_FAILED); 2198fe998527SLalit Chandivade qla4_8xxx_idc_unlock(ha); 2199fe998527SLalit Chandivade } 2200afaf5a2dSDavid Somayajulu ret = -ENODEV; 2201afaf5a2dSDavid Somayajulu goto probe_failed; 2202afaf5a2dSDavid Somayajulu } 2203afaf5a2dSDavid Somayajulu 2204afaf5a2dSDavid Somayajulu host->cmd_per_lun = 3; 2205afaf5a2dSDavid Somayajulu host->max_channel = 0; 2206afaf5a2dSDavid Somayajulu host->max_lun = MAX_LUNS - 1; 2207afaf5a2dSDavid Somayajulu host->max_id = MAX_TARGETS; 2208afaf5a2dSDavid Somayajulu host->max_cmd_len = IOCB_MAX_CDB_LEN; 2209afaf5a2dSDavid Somayajulu host->can_queue = MAX_SRBS ; 2210afaf5a2dSDavid Somayajulu host->transportt = qla4xxx_scsi_transport; 2211afaf5a2dSDavid Somayajulu 2212afaf5a2dSDavid Somayajulu ret = scsi_init_shared_tag_map(host, MAX_SRBS); 2213afaf5a2dSDavid Somayajulu if (ret) { 2214c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2215c2660df3SVikas Chaudhary "scsi_init_shared_tag_map failed\n"); 2216afaf5a2dSDavid Somayajulu goto probe_failed; 2217afaf5a2dSDavid Somayajulu } 2218afaf5a2dSDavid Somayajulu 2219afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 2220afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 2221afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 2222afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 2223afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 2224afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 2225c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 2226afaf5a2dSDavid Somayajulu ret = -ENODEV; 2227afaf5a2dSDavid Somayajulu goto probe_failed; 2228afaf5a2dSDavid Somayajulu } 2229c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 2230afaf5a2dSDavid Somayajulu 2231f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 2232f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 2233f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 2234f4f5df23SVikas Chaudhary * mbx_intr_enable. 2235f4f5df23SVikas Chaudhary */ 2236f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 2237f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 2238afaf5a2dSDavid Somayajulu if (ret) { 2239f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 2240f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 2241afaf5a2dSDavid Somayajulu goto probe_failed; 2242afaf5a2dSDavid Somayajulu } 2243f4f5df23SVikas Chaudhary } 2244afaf5a2dSDavid Somayajulu 22452232be0dSLalit Chandivade pci_save_state(ha->pdev); 2246f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2247afaf5a2dSDavid Somayajulu 2248afaf5a2dSDavid Somayajulu /* Start timer thread. */ 2249afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 2250afaf5a2dSDavid Somayajulu 2251afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 2252afaf5a2dSDavid Somayajulu 2253afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, ha); 2254afaf5a2dSDavid Somayajulu 2255afaf5a2dSDavid Somayajulu ret = scsi_add_host(host, &pdev->dev); 2256afaf5a2dSDavid Somayajulu if (ret) 2257afaf5a2dSDavid Somayajulu goto probe_failed; 2258afaf5a2dSDavid Somayajulu 2259afaf5a2dSDavid Somayajulu printk(KERN_INFO 2260afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 2261afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 2262afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 2263afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 2264afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 2265921601b7SMike Christie scsi_scan_host(host); 2266ed1086e0SVikas Chaudhary 2267ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 2268afaf5a2dSDavid Somayajulu return 0; 2269afaf5a2dSDavid Somayajulu 2270afaf5a2dSDavid Somayajulu probe_failed: 2271afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 2272f4f5df23SVikas Chaudhary 2273f4f5df23SVikas Chaudhary probe_failed_ioconfig: 22742232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 2275afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 2276afaf5a2dSDavid Somayajulu 2277afaf5a2dSDavid Somayajulu probe_disable_device: 2278afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 2279afaf5a2dSDavid Somayajulu 2280afaf5a2dSDavid Somayajulu return ret; 2281afaf5a2dSDavid Somayajulu } 2282afaf5a2dSDavid Somayajulu 2283afaf5a2dSDavid Somayajulu /** 22847eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 22857eece5a0SKaren Higgins * @ha: pointer to adapter structure 22867eece5a0SKaren Higgins * 22877eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 22887eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 22897eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 22907eece5a0SKaren Higgins **/ 22917eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 22927eece5a0SKaren Higgins { 22937eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 22947eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 22957eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 22967eece5a0SKaren Higgins 22977eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 22987eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 22997eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 23007eece5a0SKaren Higgins 23017eece5a0SKaren Higgins other_pdev = 23027eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 23037eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 23047eece5a0SKaren Higgins fn)); 23057eece5a0SKaren Higgins 23067eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 23077eece5a0SKaren Higgins if (other_pdev) { 23087eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 23097eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 23107eece5a0SKaren Higgins if (other_ha) { 23117eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 23127eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 23137eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 23147eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 23157eece5a0SKaren Higgins } 23167eece5a0SKaren Higgins } 23177eece5a0SKaren Higgins pci_dev_put(other_pdev); 23187eece5a0SKaren Higgins } 23197eece5a0SKaren Higgins } 23207eece5a0SKaren Higgins 23217eece5a0SKaren Higgins /** 2322afaf5a2dSDavid Somayajulu * qla4xxx_remove_adapter - calback function to remove adapter. 2323afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 2324afaf5a2dSDavid Somayajulu **/ 2325afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 2326afaf5a2dSDavid Somayajulu { 2327afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 2328afaf5a2dSDavid Somayajulu 2329afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 2330afaf5a2dSDavid Somayajulu 23317eece5a0SKaren Higgins if (!is_qla8022(ha)) 23327eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 2333bee4fe8eSDavid C Somayajulu 2334afaf5a2dSDavid Somayajulu /* remove devs from iscsi_sessions to scsi_devices */ 2335afaf5a2dSDavid Somayajulu qla4xxx_free_ddb_list(ha); 2336afaf5a2dSDavid Somayajulu 2337ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 2338ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 2339ed1086e0SVikas Chaudhary 2340afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 2341afaf5a2dSDavid Somayajulu 2342afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 2343afaf5a2dSDavid Somayajulu 2344afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 2345afaf5a2dSDavid Somayajulu 23462232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 2347f4f5df23SVikas Chaudhary pci_disable_device(pdev); 2348afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 2349afaf5a2dSDavid Somayajulu } 2350afaf5a2dSDavid Somayajulu 2351afaf5a2dSDavid Somayajulu /** 2352afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 2353afaf5a2dSDavid Somayajulu * @ha: HA context 2354afaf5a2dSDavid Somayajulu * 2355afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 2356afaf5a2dSDavid Somayajulu * supported addressing method. 2357afaf5a2dSDavid Somayajulu */ 235847975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 2359afaf5a2dSDavid Somayajulu { 2360afaf5a2dSDavid Somayajulu int retval; 2361afaf5a2dSDavid Somayajulu 2362afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 23636a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 23646a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 2365afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 2366afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 2367afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 2368afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 2369284901a9SYang Hongyang DMA_BIT_MASK(32)); 2370afaf5a2dSDavid Somayajulu } 2371afaf5a2dSDavid Somayajulu } else 2372284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 2373afaf5a2dSDavid Somayajulu } 2374afaf5a2dSDavid Somayajulu 2375afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 2376afaf5a2dSDavid Somayajulu { 2377afaf5a2dSDavid Somayajulu struct iscsi_cls_session *sess = starget_to_session(sdev->sdev_target); 2378afaf5a2dSDavid Somayajulu struct ddb_entry *ddb = sess->dd_data; 23798bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 2380afaf5a2dSDavid Somayajulu 2381afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 2382afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 23838bb4033dSVikas Chaudhary 23848bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 23858bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 23868bb4033dSVikas Chaudhary 23878bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 2388afaf5a2dSDavid Somayajulu return 0; 2389afaf5a2dSDavid Somayajulu } 2390afaf5a2dSDavid Somayajulu 2391afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 2392afaf5a2dSDavid Somayajulu { 2393afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 2394afaf5a2dSDavid Somayajulu return 0; 2395afaf5a2dSDavid Somayajulu } 2396afaf5a2dSDavid Somayajulu 2397afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 2398afaf5a2dSDavid Somayajulu { 2399afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 2400afaf5a2dSDavid Somayajulu } 2401afaf5a2dSDavid Somayajulu 2402afaf5a2dSDavid Somayajulu /** 2403afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 2404afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2405fd589a8fSAnand Gadiyar * @index: index into the active_array 2406afaf5a2dSDavid Somayajulu * 2407afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 2408afaf5a2dSDavid Somayajulu **/ 2409f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 2410f4f5df23SVikas Chaudhary uint32_t index) 2411afaf5a2dSDavid Somayajulu { 2412afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 24135369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 2414afaf5a2dSDavid Somayajulu 24155369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 24165369887aSVikas Chaudhary if (!cmd) 2417afaf5a2dSDavid Somayajulu return srb; 2418afaf5a2dSDavid Somayajulu 24195369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 24205369887aSVikas Chaudhary if (!srb) 2421afaf5a2dSDavid Somayajulu return srb; 2422afaf5a2dSDavid Somayajulu 2423afaf5a2dSDavid Somayajulu /* update counters */ 2424afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 2425afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 2426afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 2427afaf5a2dSDavid Somayajulu if (srb->cmd) 24285369887aSVikas Chaudhary srb->cmd->host_scribble = 24295369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 2430afaf5a2dSDavid Somayajulu } 2431afaf5a2dSDavid Somayajulu return srb; 2432afaf5a2dSDavid Somayajulu } 2433afaf5a2dSDavid Somayajulu 2434afaf5a2dSDavid Somayajulu /** 2435afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 243609a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 2437afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 2438afaf5a2dSDavid Somayajulu * 2439afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 2440afaf5a2dSDavid Somayajulu * for some max time. 2441afaf5a2dSDavid Somayajulu **/ 2442afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 2443afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 2444afaf5a2dSDavid Somayajulu { 2445afaf5a2dSDavid Somayajulu int done = 0; 2446afaf5a2dSDavid Somayajulu struct srb *rp; 2447afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 24482232be0dSLalit Chandivade int ret = SUCCESS; 24492232be0dSLalit Chandivade 24502232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 24512232be0dSLalit Chandivade * by PCI AER driver 24522232be0dSLalit Chandivade */ 24532232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 24542232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 24552232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 24562232be0dSLalit Chandivade ha->host_no, __func__); 24572232be0dSLalit Chandivade return ret; 24582232be0dSLalit Chandivade } 2459afaf5a2dSDavid Somayajulu 2460afaf5a2dSDavid Somayajulu do { 2461afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 24625369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 2463afaf5a2dSDavid Somayajulu if (rp == NULL) { 2464afaf5a2dSDavid Somayajulu done++; 2465afaf5a2dSDavid Somayajulu break; 2466afaf5a2dSDavid Somayajulu } 2467afaf5a2dSDavid Somayajulu 2468afaf5a2dSDavid Somayajulu msleep(2000); 2469afaf5a2dSDavid Somayajulu } while (max_wait_time--); 2470afaf5a2dSDavid Somayajulu 2471afaf5a2dSDavid Somayajulu return done; 2472afaf5a2dSDavid Somayajulu } 2473afaf5a2dSDavid Somayajulu 2474afaf5a2dSDavid Somayajulu /** 2475afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 2476afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 2477afaf5a2dSDavid Somayajulu **/ 2478afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 2479afaf5a2dSDavid Somayajulu { 2480afaf5a2dSDavid Somayajulu unsigned long wait_online; 2481afaf5a2dSDavid Somayajulu 2482f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 2483afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 2484afaf5a2dSDavid Somayajulu 2485afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 2486afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 2487afaf5a2dSDavid Somayajulu 2488afaf5a2dSDavid Somayajulu msleep(2000); 2489afaf5a2dSDavid Somayajulu } 2490afaf5a2dSDavid Somayajulu 2491afaf5a2dSDavid Somayajulu return QLA_ERROR; 2492afaf5a2dSDavid Somayajulu } 2493afaf5a2dSDavid Somayajulu 2494afaf5a2dSDavid Somayajulu /** 2495ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 2496fd589a8fSAnand Gadiyar * @ha: pointer to HBA 2497afaf5a2dSDavid Somayajulu * @t: target id 2498afaf5a2dSDavid Somayajulu * @l: lun id 2499afaf5a2dSDavid Somayajulu * 2500afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 2501afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 2502afaf5a2dSDavid Somayajulu **/ 2503ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 2504ce545039SMike Christie struct scsi_target *stgt, 2505ce545039SMike Christie struct scsi_device *sdev) 2506afaf5a2dSDavid Somayajulu { 2507afaf5a2dSDavid Somayajulu int cnt; 2508afaf5a2dSDavid Somayajulu int status = 0; 2509afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 2510afaf5a2dSDavid Somayajulu 2511afaf5a2dSDavid Somayajulu /* 2512ce545039SMike Christie * Waiting for all commands for the designated target or dev 2513ce545039SMike Christie * in the active array 2514afaf5a2dSDavid Somayajulu */ 2515afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 2516afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 2517ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 2518ce545039SMike Christie (!sdev || sdev == cmd->device)) { 2519afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 2520afaf5a2dSDavid Somayajulu status++; 2521afaf5a2dSDavid Somayajulu break; 2522afaf5a2dSDavid Somayajulu } 2523afaf5a2dSDavid Somayajulu } 2524afaf5a2dSDavid Somayajulu } 2525afaf5a2dSDavid Somayajulu return status; 2526afaf5a2dSDavid Somayajulu } 2527afaf5a2dSDavid Somayajulu 2528afaf5a2dSDavid Somayajulu /** 252909a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 253009a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 253109a0f719SVikas Chaudhary * 253209a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 253309a0f719SVikas Chaudhary * command. 253409a0f719SVikas Chaudhary **/ 253509a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 253609a0f719SVikas Chaudhary { 253709a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 253809a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 253909a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 254092b3e5bbSMike Christie unsigned long flags; 254109a0f719SVikas Chaudhary struct srb *srb = NULL; 254209a0f719SVikas Chaudhary int ret = SUCCESS; 254309a0f719SVikas Chaudhary int wait = 0; 254409a0f719SVikas Chaudhary 2545c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 25465cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 25475cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 254809a0f719SVikas Chaudhary 254992b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 255009a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 255192b3e5bbSMike Christie if (!srb) { 255292b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 255309a0f719SVikas Chaudhary return SUCCESS; 255492b3e5bbSMike Christie } 255509a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 255692b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 255709a0f719SVikas Chaudhary 255809a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 255909a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 256009a0f719SVikas Chaudhary ha->host_no, id, lun)); 256109a0f719SVikas Chaudhary ret = FAILED; 256209a0f719SVikas Chaudhary } else { 256309a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 256409a0f719SVikas Chaudhary ha->host_no, id, lun)); 256509a0f719SVikas Chaudhary wait = 1; 256609a0f719SVikas Chaudhary } 256709a0f719SVikas Chaudhary 256809a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 256909a0f719SVikas Chaudhary 257009a0f719SVikas Chaudhary /* Wait for command to complete */ 257109a0f719SVikas Chaudhary if (wait) { 257209a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 257309a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 257409a0f719SVikas Chaudhary ha->host_no, id, lun)); 257509a0f719SVikas Chaudhary ret = FAILED; 257609a0f719SVikas Chaudhary } 257709a0f719SVikas Chaudhary } 257809a0f719SVikas Chaudhary 2579c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 258009a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 258125985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 258209a0f719SVikas Chaudhary 258309a0f719SVikas Chaudhary return ret; 258409a0f719SVikas Chaudhary } 258509a0f719SVikas Chaudhary 258609a0f719SVikas Chaudhary /** 2587afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 2588afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 2589afaf5a2dSDavid Somayajulu * 2590afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 2591afaf5a2dSDavid Somayajulu * specified target. 2592afaf5a2dSDavid Somayajulu **/ 2593afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 2594afaf5a2dSDavid Somayajulu { 2595afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 2596afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 2597afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 2598afaf5a2dSDavid Somayajulu 2599612f7348SKaren Higgins if (!ddb_entry) 2600afaf5a2dSDavid Somayajulu return ret; 2601afaf5a2dSDavid Somayajulu 2602c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 2603c01be6dcSMike Christie if (ret) 2604c01be6dcSMike Christie return ret; 2605c01be6dcSMike Christie ret = FAILED; 2606c01be6dcSMike Christie 2607c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 2608afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 2609afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 2610afaf5a2dSDavid Somayajulu 2611afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 2612afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 2613afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 2614242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 2615afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 2616afaf5a2dSDavid Somayajulu 2617afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 2618afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 2619afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 2620c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 2621afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 2622afaf5a2dSDavid Somayajulu } 2623afaf5a2dSDavid Somayajulu 2624ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 2625ce545039SMike Christie cmd->device)) { 2626c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 2627afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 2628afaf5a2dSDavid Somayajulu "commands.\n"); 2629afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 2630afaf5a2dSDavid Somayajulu } 2631afaf5a2dSDavid Somayajulu 26329d562913SDavid C Somayajulu /* Send marker. */ 26339d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 26349d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 26359d562913SDavid C Somayajulu goto eh_dev_reset_done; 26369d562913SDavid C Somayajulu 2637c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 2638afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 2639afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 2640afaf5a2dSDavid Somayajulu cmd->device->lun); 2641afaf5a2dSDavid Somayajulu 2642afaf5a2dSDavid Somayajulu ret = SUCCESS; 2643afaf5a2dSDavid Somayajulu 2644afaf5a2dSDavid Somayajulu eh_dev_reset_done: 2645afaf5a2dSDavid Somayajulu 2646afaf5a2dSDavid Somayajulu return ret; 2647afaf5a2dSDavid Somayajulu } 2648afaf5a2dSDavid Somayajulu 2649afaf5a2dSDavid Somayajulu /** 2650ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 2651ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 2652ce545039SMike Christie * 2653ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 2654ce545039SMike Christie **/ 2655ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 2656ce545039SMike Christie { 2657ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 2658ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 2659c01be6dcSMike Christie int stat, ret; 2660ce545039SMike Christie 2661ce545039SMike Christie if (!ddb_entry) 2662ce545039SMike Christie return FAILED; 2663ce545039SMike Christie 2664c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 2665c01be6dcSMike Christie if (ret) 2666c01be6dcSMike Christie return ret; 2667c01be6dcSMike Christie 2668ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 2669ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 2670ce545039SMike Christie 2671ce545039SMike Christie DEBUG2(printk(KERN_INFO 2672ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 2673ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 2674242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 2675ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 2676ce545039SMike Christie 2677ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 2678ce545039SMike Christie if (stat != QLA_SUCCESS) { 2679ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 2680ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 2681ce545039SMike Christie return FAILED; 2682ce545039SMike Christie } 2683ce545039SMike Christie 2684ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 2685ce545039SMike Christie NULL)) { 2686ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 2687ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 2688ce545039SMike Christie "waiting for commands.\n"); 2689ce545039SMike Christie return FAILED; 2690ce545039SMike Christie } 2691ce545039SMike Christie 26929d562913SDavid C Somayajulu /* Send marker. */ 26939d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 26949d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 26959d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 26969d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 26979d562913SDavid C Somayajulu "marker iocb failed.\n"); 26989d562913SDavid C Somayajulu return FAILED; 26999d562913SDavid C Somayajulu } 27009d562913SDavid C Somayajulu 2701ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 2702ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 2703ce545039SMike Christie return SUCCESS; 2704ce545039SMike Christie } 2705ce545039SMike Christie 2706ce545039SMike Christie /** 2707afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 2708afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 2709afaf5a2dSDavid Somayajulu * 2710afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 2711afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 2712afaf5a2dSDavid Somayajulu **/ 2713afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 2714afaf5a2dSDavid Somayajulu { 2715afaf5a2dSDavid Somayajulu int return_status = FAILED; 2716afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 2717afaf5a2dSDavid Somayajulu 2718afaf5a2dSDavid Somayajulu ha = (struct scsi_qla_host *) cmd->device->host->hostdata; 2719afaf5a2dSDavid Somayajulu 2720f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 2721f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 2722f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2723f4f5df23SVikas Chaudhary return FAILED; 2724f4f5df23SVikas Chaudhary } 2725f4f5df23SVikas Chaudhary 2726c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 2727dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 2728afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 2729afaf5a2dSDavid Somayajulu 2730afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 2731afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 2732afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 2733afaf5a2dSDavid Somayajulu __func__)); 2734afaf5a2dSDavid Somayajulu 2735afaf5a2dSDavid Somayajulu return FAILED; 2736afaf5a2dSDavid Somayajulu } 2737afaf5a2dSDavid Somayajulu 2738f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 2739f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 2740f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2741f4f5df23SVikas Chaudhary else 2742f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2743f4f5df23SVikas Chaudhary } 274450a29aecSMike Christie 2745f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 2746afaf5a2dSDavid Somayajulu return_status = SUCCESS; 2747afaf5a2dSDavid Somayajulu 2748c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 274925985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 2750afaf5a2dSDavid Somayajulu 2751afaf5a2dSDavid Somayajulu return return_status; 2752afaf5a2dSDavid Somayajulu } 2753afaf5a2dSDavid Somayajulu 27542232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 27552232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 27562232be0dSLalit Chandivade * driver calls the following device driver's callbacks 27572232be0dSLalit Chandivade * 27582232be0dSLalit Chandivade * - Fatal Errors - link_reset 27592232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 27602232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 27612232be0dSLalit Chandivade * 27622232be0dSLalit Chandivade * PCI AER driver calls 27632232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 27642232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 27652232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 27662232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 27672232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 27682232be0dSLalit Chandivade */ 27692232be0dSLalit Chandivade static pci_ers_result_t 27702232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 27712232be0dSLalit Chandivade { 27722232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 27732232be0dSLalit Chandivade 27742232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 27752232be0dSLalit Chandivade ha->host_no, __func__, state); 27762232be0dSLalit Chandivade 27772232be0dSLalit Chandivade if (!is_aer_supported(ha)) 27782232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 27792232be0dSLalit Chandivade 27802232be0dSLalit Chandivade switch (state) { 27812232be0dSLalit Chandivade case pci_channel_io_normal: 27822232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 27832232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 27842232be0dSLalit Chandivade case pci_channel_io_frozen: 27852232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 27862232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 27872232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 27882232be0dSLalit Chandivade pci_disable_device(pdev); 27897b3595dfSVikas Chaudhary /* Return back all IOs */ 27907b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 27912232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 27922232be0dSLalit Chandivade case pci_channel_io_perm_failure: 27932232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 27942232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 27952232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 27962232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 27972232be0dSLalit Chandivade } 27982232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 27992232be0dSLalit Chandivade } 28002232be0dSLalit Chandivade 28012232be0dSLalit Chandivade /** 28022232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 28032232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 28042232be0dSLalit Chandivade * and read/write to the device still works. 28052232be0dSLalit Chandivade **/ 28062232be0dSLalit Chandivade static pci_ers_result_t 28072232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 28082232be0dSLalit Chandivade { 28092232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 28102232be0dSLalit Chandivade 28112232be0dSLalit Chandivade if (!is_aer_supported(ha)) 28122232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 28132232be0dSLalit Chandivade 28142232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 28152232be0dSLalit Chandivade } 28162232be0dSLalit Chandivade 28177b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 28182232be0dSLalit Chandivade { 28192232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 28207b3595dfSVikas Chaudhary uint32_t ret = 0; 28212232be0dSLalit Chandivade int fn; 28222232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 28232232be0dSLalit Chandivade 28242232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 28252232be0dSLalit Chandivade 28262232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 28272232be0dSLalit Chandivade 28282232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 28292232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 28302232be0dSLalit Chandivade qla4xxx_mark_all_devices_missing(ha); 28312232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 28322232be0dSLalit Chandivade } 28332232be0dSLalit Chandivade 28342232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 28352232be0dSLalit Chandivade while (fn > 0) { 28362232be0dSLalit Chandivade fn--; 28372232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 28382232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 28392232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 28402232be0dSLalit Chandivade * slot/function number */ 28412232be0dSLalit Chandivade other_pdev = 28422232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 28432232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 28442232be0dSLalit Chandivade fn)); 28452232be0dSLalit Chandivade 28462232be0dSLalit Chandivade if (!other_pdev) 28472232be0dSLalit Chandivade continue; 28482232be0dSLalit Chandivade 28492232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 28502232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 28512232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 28522232be0dSLalit Chandivade __func__, fn); 28532232be0dSLalit Chandivade pci_dev_put(other_pdev); 28542232be0dSLalit Chandivade break; 28552232be0dSLalit Chandivade } 28562232be0dSLalit Chandivade pci_dev_put(other_pdev); 28572232be0dSLalit Chandivade } 28582232be0dSLalit Chandivade 28592232be0dSLalit Chandivade /* The first function on the card, the reset owner will 28602232be0dSLalit Chandivade * start & initialize the firmware. The other functions 28612232be0dSLalit Chandivade * on the card will reset the firmware context 28622232be0dSLalit Chandivade */ 28632232be0dSLalit Chandivade if (!fn) { 28642232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 28652232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 28662232be0dSLalit Chandivade ha->pdev->devfn); 28672232be0dSLalit Chandivade 28682232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 28692232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 28702232be0dSLalit Chandivade QLA82XX_DEV_COLD); 28712232be0dSLalit Chandivade 28722232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 28732232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 28742232be0dSLalit Chandivade 28752232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 28762232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 28772232be0dSLalit Chandivade rval = qla4xxx_initialize_adapter(ha, PRESERVE_DDB_LIST); 28782232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 28792232be0dSLalit Chandivade 28802232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 28812232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 28822232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 28832232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 28842232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 28852232be0dSLalit Chandivade QLA82XX_DEV_FAILED); 28862232be0dSLalit Chandivade } else { 28872232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 28882232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 28892232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 28902232be0dSLalit Chandivade QLA82XX_DEV_READY); 28912232be0dSLalit Chandivade /* Clear driver state register */ 28922232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 28932232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 28947b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 28957b3595dfSVikas Chaudhary if (ret) { 28967b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 28977b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 28987b3595dfSVikas Chaudhary ha->pdev->irq); 28997b3595dfSVikas Chaudhary rval = QLA_ERROR; 29007b3595dfSVikas Chaudhary } else { 29012232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 29027b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 29037b3595dfSVikas Chaudhary } 29042232be0dSLalit Chandivade } 29052232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 29062232be0dSLalit Chandivade } else { 29072232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 29082232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 29092232be0dSLalit Chandivade ha->pdev->devfn); 29102232be0dSLalit Chandivade if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 29112232be0dSLalit Chandivade QLA82XX_DEV_READY)) { 29122232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 29132232be0dSLalit Chandivade rval = qla4xxx_initialize_adapter(ha, 29142232be0dSLalit Chandivade PRESERVE_DDB_LIST); 29157b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 29167b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 29177b3595dfSVikas Chaudhary if (ret) { 29187b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 29197b3595dfSVikas Chaudhary " reserve interrupt %d already in" 29207b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 29217b3595dfSVikas Chaudhary rval = QLA_ERROR; 29227b3595dfSVikas Chaudhary } else { 29232232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 29247b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 29257b3595dfSVikas Chaudhary } 29267b3595dfSVikas Chaudhary } 29272232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 29282232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 29292232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 29302232be0dSLalit Chandivade } 29312232be0dSLalit Chandivade } 29322232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 29332232be0dSLalit Chandivade return rval; 29342232be0dSLalit Chandivade } 29352232be0dSLalit Chandivade 29362232be0dSLalit Chandivade static pci_ers_result_t 29372232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 29382232be0dSLalit Chandivade { 29392232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 29402232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 29412232be0dSLalit Chandivade int rc; 29422232be0dSLalit Chandivade 29432232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 29442232be0dSLalit Chandivade ha->host_no, __func__); 29452232be0dSLalit Chandivade 29462232be0dSLalit Chandivade if (!is_aer_supported(ha)) 29472232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 29482232be0dSLalit Chandivade 29492232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 29502232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 29512232be0dSLalit Chandivade * IOV states 29522232be0dSLalit Chandivade */ 29532232be0dSLalit Chandivade pci_restore_state(pdev); 29542232be0dSLalit Chandivade 29552232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 29562232be0dSLalit Chandivade * save restored state which resets saved_state flag 29572232be0dSLalit Chandivade */ 29582232be0dSLalit Chandivade pci_save_state(pdev); 29592232be0dSLalit Chandivade 29602232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 29612232be0dSLalit Chandivade rc = pci_enable_device(pdev); 29622232be0dSLalit Chandivade if (rc) { 296325985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 29642232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 29652232be0dSLalit Chandivade goto exit_slot_reset; 29662232be0dSLalit Chandivade } 29672232be0dSLalit Chandivade 29687b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 29692232be0dSLalit Chandivade 29702232be0dSLalit Chandivade if (is_qla8022(ha)) { 29712232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 29722232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 29732232be0dSLalit Chandivade goto exit_slot_reset; 29742232be0dSLalit Chandivade } else 29752232be0dSLalit Chandivade goto exit_slot_reset; 29762232be0dSLalit Chandivade } 29772232be0dSLalit Chandivade 29782232be0dSLalit Chandivade exit_slot_reset: 29792232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 29802232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 29812232be0dSLalit Chandivade return ret; 29822232be0dSLalit Chandivade } 29832232be0dSLalit Chandivade 29842232be0dSLalit Chandivade static void 29852232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 29862232be0dSLalit Chandivade { 29872232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 29882232be0dSLalit Chandivade int ret; 29892232be0dSLalit Chandivade 29902232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 29912232be0dSLalit Chandivade ha->host_no, __func__); 29922232be0dSLalit Chandivade 29932232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 29942232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 29952232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 29962232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 29972232be0dSLalit Chandivade __func__); 29982232be0dSLalit Chandivade } 29992232be0dSLalit Chandivade 30002232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 30012232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 30022232be0dSLalit Chandivade } 30032232be0dSLalit Chandivade 30042232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 30052232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 30062232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 30072232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 30082232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 30092232be0dSLalit Chandivade }; 30102232be0dSLalit Chandivade 3011afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 3012afaf5a2dSDavid Somayajulu { 3013afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 3014afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 3015afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 3016afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 3017afaf5a2dSDavid Somayajulu }, 3018afaf5a2dSDavid Somayajulu { 3019afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 3020afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 3021afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 3022afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 3023afaf5a2dSDavid Somayajulu }, 3024d915058fSDavid C Somayajulu { 3025d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 3026d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 3027d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 3028d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 3029d915058fSDavid C Somayajulu }, 3030f4f5df23SVikas Chaudhary { 3031f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 3032f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 3033f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 3034f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 3035f4f5df23SVikas Chaudhary }, 3036afaf5a2dSDavid Somayajulu {0, 0}, 3037afaf5a2dSDavid Somayajulu }; 3038afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 3039afaf5a2dSDavid Somayajulu 304047975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 3041afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 3042afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 3043afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 3044afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 30452232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 3046afaf5a2dSDavid Somayajulu }; 3047afaf5a2dSDavid Somayajulu 3048afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 3049afaf5a2dSDavid Somayajulu { 3050afaf5a2dSDavid Somayajulu int ret; 3051afaf5a2dSDavid Somayajulu 3052afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 3053afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 305420c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 3055afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 3056afaf5a2dSDavid Somayajulu printk(KERN_ERR 3057afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 3058afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 3059afaf5a2dSDavid Somayajulu ret = -ENOMEM; 3060afaf5a2dSDavid Somayajulu goto no_srp_cache; 3061afaf5a2dSDavid Somayajulu } 3062afaf5a2dSDavid Somayajulu 3063afaf5a2dSDavid Somayajulu /* Derive version string. */ 3064afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 306511010fecSAndrew Vasquez if (ql4xextended_error_logging) 3066afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 3067afaf5a2dSDavid Somayajulu 3068afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 3069afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 3070afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 3071afaf5a2dSDavid Somayajulu ret = -ENODEV; 3072afaf5a2dSDavid Somayajulu goto release_srb_cache; 3073afaf5a2dSDavid Somayajulu } 3074afaf5a2dSDavid Somayajulu 3075afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 3076afaf5a2dSDavid Somayajulu if (ret) 3077afaf5a2dSDavid Somayajulu goto unregister_transport; 3078afaf5a2dSDavid Somayajulu 3079afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 3080afaf5a2dSDavid Somayajulu return 0; 30815ae16db3SDoug Maxey 3082afaf5a2dSDavid Somayajulu unregister_transport: 3083afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 3084afaf5a2dSDavid Somayajulu release_srb_cache: 3085afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 3086afaf5a2dSDavid Somayajulu no_srp_cache: 3087afaf5a2dSDavid Somayajulu return ret; 3088afaf5a2dSDavid Somayajulu } 3089afaf5a2dSDavid Somayajulu 3090afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 3091afaf5a2dSDavid Somayajulu { 3092afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 3093afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 3094afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 3095afaf5a2dSDavid Somayajulu } 3096afaf5a2dSDavid Somayajulu 3097afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 3098afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 3099afaf5a2dSDavid Somayajulu 3100afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 3101afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 3102afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 3103afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 3104