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, 144afaf5a2dSDavid Somayajulu .tgt_dscvr = qla4xxx_tgt_dscvr, 1453128c6c7SMike Christie .attr_is_visible = ql4_attr_is_visible, 146afaf5a2dSDavid Somayajulu .get_conn_param = qla4xxx_conn_get_param, 147afaf5a2dSDavid Somayajulu .get_session_param = qla4xxx_sess_get_param, 148aa1e93a2SMike Christie .get_host_param = qla4xxx_host_get_param, 149d00efe3fSMike Christie .set_iface_param = qla4xxx_iface_set_param, 150afaf5a2dSDavid Somayajulu .session_recovery_timedout = qla4xxx_recovery_timedout, 151ed1086e0SVikas Chaudhary .get_iface_param = qla4xxx_get_iface_param, 152afaf5a2dSDavid Somayajulu }; 153afaf5a2dSDavid Somayajulu 154afaf5a2dSDavid Somayajulu static struct scsi_transport_template *qla4xxx_scsi_transport; 155afaf5a2dSDavid Somayajulu 1563128c6c7SMike Christie static mode_t ql4_attr_is_visible(int param_type, int param) 1573128c6c7SMike Christie { 1583128c6c7SMike Christie switch (param_type) { 1593128c6c7SMike Christie case ISCSI_PARAM: 1603128c6c7SMike Christie switch (param) { 1613128c6c7SMike Christie case ISCSI_PARAM_CONN_ADDRESS: 1623128c6c7SMike Christie case ISCSI_PARAM_CONN_PORT: 1631d063c17SMike Christie case ISCSI_PARAM_TARGET_NAME: 1641d063c17SMike Christie case ISCSI_PARAM_TPGT: 1651d063c17SMike Christie case ISCSI_PARAM_TARGET_ALIAS: 1663128c6c7SMike Christie return S_IRUGO; 1673128c6c7SMike Christie default: 1683128c6c7SMike Christie return 0; 1693128c6c7SMike Christie } 170b78dbba0SMike Christie case ISCSI_NET_PARAM: 171b78dbba0SMike Christie switch (param) { 172b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 173b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 174b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_GW: 175b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 176b78dbba0SMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 177b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 178b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 179b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 180b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 181b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 182b78dbba0SMike Christie return S_IRUGO; 183b78dbba0SMike Christie default: 184b78dbba0SMike Christie return 0; 185b78dbba0SMike Christie } 1863128c6c7SMike Christie } 1873128c6c7SMike Christie 1883128c6c7SMike Christie return 0; 1893128c6c7SMike Christie } 1903128c6c7SMike Christie 191ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 192ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 193ed1086e0SVikas Chaudhary int param, char *buf) 194ed1086e0SVikas Chaudhary { 195ed1086e0SVikas Chaudhary struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 196ed1086e0SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 197ed1086e0SVikas Chaudhary int len = -ENOSYS; 198ed1086e0SVikas Chaudhary 199ed1086e0SVikas Chaudhary if (param_type != ISCSI_NET_PARAM) 200ed1086e0SVikas Chaudhary return -ENOSYS; 201ed1086e0SVikas Chaudhary 202ed1086e0SVikas Chaudhary switch (param) { 203ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_ADDR: 204ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 205ed1086e0SVikas Chaudhary break; 206ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_SUBNET: 207ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 208ed1086e0SVikas Chaudhary break; 209ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_GW: 210ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 211ed1086e0SVikas Chaudhary break; 212ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IFACE_ENABLE: 213ed1086e0SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 214ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 215ed1086e0SVikas Chaudhary (ha->ip_config.ipv4_options & 216ed1086e0SVikas Chaudhary IPOPT_IPV4_PROTOCOL_ENABLE) ? 217ed1086e0SVikas Chaudhary "enabled" : "disabled"); 218ed1086e0SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 219ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 220ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_options & 221ed1086e0SVikas Chaudhary IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 222ed1086e0SVikas Chaudhary "enabled" : "disabled"); 223ed1086e0SVikas Chaudhary break; 224ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 225ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 226ed1086e0SVikas Chaudhary (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 227ed1086e0SVikas Chaudhary "dhcp" : "static"); 228ed1086e0SVikas Chaudhary break; 229ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR: 230ed1086e0SVikas Chaudhary if (iface->iface_num == 0) 231ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 232ed1086e0SVikas Chaudhary if (iface->iface_num == 1) 233ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 234ed1086e0SVikas Chaudhary break; 235ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 236ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 237ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr); 238ed1086e0SVikas Chaudhary break; 239ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ROUTER: 240ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 241ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_default_router_addr); 242ed1086e0SVikas Chaudhary break; 243ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 244ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 245ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 246ed1086e0SVikas Chaudhary IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 247ed1086e0SVikas Chaudhary "nd" : "static"); 248ed1086e0SVikas Chaudhary break; 249ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 250ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 251ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 252ed1086e0SVikas Chaudhary IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 253ed1086e0SVikas Chaudhary "auto" : "static"); 254ed1086e0SVikas Chaudhary break; 255ed1086e0SVikas Chaudhary default: 256ed1086e0SVikas Chaudhary len = -ENOSYS; 257ed1086e0SVikas Chaudhary } 258ed1086e0SVikas Chaudhary 259ed1086e0SVikas Chaudhary return len; 260ed1086e0SVikas Chaudhary } 261ed1086e0SVikas Chaudhary 2625c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 2635c656af7SMike Christie { 2645c656af7SMike Christie struct iscsi_cls_session *session; 2655c656af7SMike Christie struct ddb_entry *ddb_entry; 2665c656af7SMike Christie 2675c656af7SMike Christie session = starget_to_session(scsi_target(sc->device)); 2685c656af7SMike Christie ddb_entry = session->dd_data; 2695c656af7SMike Christie 2705c656af7SMike Christie /* if we are not logged in then the LLD is going to clean up the cmd */ 2715c656af7SMike Christie if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) 2725c656af7SMike Christie return BLK_EH_RESET_TIMER; 2735c656af7SMike Christie else 2745c656af7SMike Christie return BLK_EH_NOT_HANDLED; 2755c656af7SMike Christie } 2765c656af7SMike Christie 277afaf5a2dSDavid Somayajulu static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session) 278afaf5a2dSDavid Somayajulu { 279afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = session->dd_data; 280afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = ddb_entry->ha; 281afaf5a2dSDavid Somayajulu 282568d303bSMike Christie if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { 283afaf5a2dSDavid Somayajulu atomic_set(&ddb_entry->state, DDB_STATE_DEAD); 284afaf5a2dSDavid Somayajulu 2853013cea8SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: ddb [%d] session recovery timeout " 286568d303bSMike Christie "of (%d) secs exhausted, marking device DEAD.\n", 287568d303bSMike Christie ha->host_no, __func__, ddb_entry->fw_ddb_index, 2883038727cSVikas Chaudhary ddb_entry->sess->recovery_tmo)); 289afaf5a2dSDavid Somayajulu } 290568d303bSMike Christie } 291afaf5a2dSDavid Somayajulu 292aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 293aa1e93a2SMike Christie enum iscsi_host_param param, char *buf) 294aa1e93a2SMike Christie { 295aa1e93a2SMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 296aa1e93a2SMike Christie int len; 297aa1e93a2SMike Christie 298aa1e93a2SMike Christie switch (param) { 299aa1e93a2SMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 3007ffc49a6SMichael Chan len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 301aa1e93a2SMike Christie break; 30222236961SMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 3032bab08fcSVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 30422236961SMike Christie break; 3058ad5781aSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 30622236961SMike Christie len = sprintf(buf, "%s\n", ha->name_string); 3078ad5781aSMike Christie break; 308aa1e93a2SMike Christie default: 309aa1e93a2SMike Christie return -ENOSYS; 310aa1e93a2SMike Christie } 311aa1e93a2SMike Christie 312aa1e93a2SMike Christie return len; 313aa1e93a2SMike Christie } 314aa1e93a2SMike Christie 315ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 316ed1086e0SVikas Chaudhary { 317ed1086e0SVikas Chaudhary if (ha->iface_ipv4) 318ed1086e0SVikas Chaudhary return; 319ed1086e0SVikas Chaudhary 320ed1086e0SVikas Chaudhary /* IPv4 */ 321ed1086e0SVikas Chaudhary ha->iface_ipv4 = iscsi_create_iface(ha->host, 322ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 323ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV4, 0, 0); 324ed1086e0SVikas Chaudhary if (!ha->iface_ipv4) 325ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 326ed1086e0SVikas Chaudhary "iface0.\n"); 327ed1086e0SVikas Chaudhary } 328ed1086e0SVikas Chaudhary 329ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 330ed1086e0SVikas Chaudhary { 331ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 332ed1086e0SVikas Chaudhary /* IPv6 iface-0 */ 333ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 334ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 335ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 0, 336ed1086e0SVikas Chaudhary 0); 337ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 338ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 339ed1086e0SVikas Chaudhary "iface0.\n"); 340ed1086e0SVikas Chaudhary 341ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 342ed1086e0SVikas Chaudhary /* IPv6 iface-1 */ 343ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 344ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 345ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 1, 346ed1086e0SVikas Chaudhary 0); 347ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 348ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 349ed1086e0SVikas Chaudhary "iface1.\n"); 350ed1086e0SVikas Chaudhary } 351ed1086e0SVikas Chaudhary 352ed1086e0SVikas Chaudhary static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 353ed1086e0SVikas Chaudhary { 354ed1086e0SVikas Chaudhary if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 355ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 356ed1086e0SVikas Chaudhary 357ed1086e0SVikas Chaudhary if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 358ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 359ed1086e0SVikas Chaudhary } 360ed1086e0SVikas Chaudhary 361ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 362ed1086e0SVikas Chaudhary { 363ed1086e0SVikas Chaudhary if (ha->iface_ipv4) { 364ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv4); 365ed1086e0SVikas Chaudhary ha->iface_ipv4 = NULL; 366ed1086e0SVikas Chaudhary } 367ed1086e0SVikas Chaudhary } 368ed1086e0SVikas Chaudhary 369ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 370ed1086e0SVikas Chaudhary { 371ed1086e0SVikas Chaudhary if (ha->iface_ipv6_0) { 372ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_0); 373ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = NULL; 374ed1086e0SVikas Chaudhary } 375ed1086e0SVikas Chaudhary if (ha->iface_ipv6_1) { 376ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_1); 377ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = NULL; 378ed1086e0SVikas Chaudhary } 379ed1086e0SVikas Chaudhary } 380ed1086e0SVikas Chaudhary 381ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 382ed1086e0SVikas Chaudhary { 383ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 384ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 385ed1086e0SVikas Chaudhary } 386ed1086e0SVikas Chaudhary 387d00efe3fSMike Christie static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 388d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 389d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 390d00efe3fSMike Christie { 391d00efe3fSMike Christie /* 392d00efe3fSMike Christie * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 393d00efe3fSMike Christie * iface_num 1 is valid only for IPv6 Addr. 394d00efe3fSMike Christie */ 395d00efe3fSMike Christie switch (iface_param->param) { 396d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 397d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 398d00efe3fSMike Christie /* IPv6 Addr 1 */ 399d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 400d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr1)); 401d00efe3fSMike Christie else 402d00efe3fSMike Christie /* IPv6 Addr 0 */ 403d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 404d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr0)); 405d00efe3fSMike Christie break; 406d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 407d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 408d00efe3fSMike Christie break; 409d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 410d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_if_id)); 411d00efe3fSMike Christie break; 412d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 413d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 414d00efe3fSMike Christie break; 415d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 416d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 417d00efe3fSMike Christie break; 418d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 419d00efe3fSMike Christie /* Autocfg applies to even interface */ 420d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 421d00efe3fSMike Christie break; 422d00efe3fSMike Christie 423d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 424d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= 425d00efe3fSMike Christie cpu_to_le16( 426d00efe3fSMike Christie ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 427d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 428d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= 429d00efe3fSMike Christie cpu_to_le16( 430d00efe3fSMike Christie IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 431d00efe3fSMike Christie else 432d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 433d00efe3fSMike Christie "IPv6 addr\n"); 434d00efe3fSMike Christie break; 435d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 436d00efe3fSMike Christie /* Autocfg applies to even interface */ 437d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 438d00efe3fSMike Christie break; 439d00efe3fSMike Christie 440d00efe3fSMike Christie if (iface_param->value[0] == 441d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 442d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 443d00efe3fSMike Christie IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 444d00efe3fSMike Christie else if (iface_param->value[0] == 445d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 446d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 447d00efe3fSMike Christie ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 448d00efe3fSMike Christie else 449d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 450d00efe3fSMike Christie "IPv6 linklocal addr\n"); 451d00efe3fSMike Christie break; 452d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 453d00efe3fSMike Christie /* Autocfg applies to even interface */ 454d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 455d00efe3fSMike Christie break; 456d00efe3fSMike Christie 457d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 458d00efe3fSMike Christie memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 459d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 460d00efe3fSMike Christie break; 461d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 462ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 463d00efe3fSMike Christie init_fw_cb->ipv6_opts |= 464d00efe3fSMike Christie cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 465ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 466ed1086e0SVikas Chaudhary } else { 467d00efe3fSMike Christie init_fw_cb->ipv6_opts &= 468d00efe3fSMike Christie cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 469d00efe3fSMike Christie 0xFFFF); 470ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 471ed1086e0SVikas Chaudhary } 472d00efe3fSMike Christie break; 473d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 474d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 475d00efe3fSMike Christie break; 476d00efe3fSMike Christie init_fw_cb->ipv6_vlan_tag = *(uint16_t *)iface_param->value; 477d00efe3fSMike Christie break; 478d00efe3fSMike Christie default: 479d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 480d00efe3fSMike Christie iface_param->param); 481d00efe3fSMike Christie break; 482d00efe3fSMike Christie } 483d00efe3fSMike Christie } 484d00efe3fSMike Christie 485d00efe3fSMike Christie static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 486d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 487d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 488d00efe3fSMike Christie { 489d00efe3fSMike Christie switch (iface_param->param) { 490d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 491d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_addr, iface_param->value, 492d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_addr)); 493d00efe3fSMike Christie break; 494d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 495d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 496d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_subnet)); 497d00efe3fSMike Christie break; 498d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_GW: 499d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 500d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_gw_addr)); 501d00efe3fSMike Christie break; 502d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 503d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 504d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts |= 505d00efe3fSMike Christie cpu_to_le16(TCPOPT_DHCP_ENABLE); 506d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 507d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts &= 508d00efe3fSMike Christie cpu_to_le16(~TCPOPT_DHCP_ENABLE); 509d00efe3fSMike Christie else 510d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 511d00efe3fSMike Christie break; 512d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 513ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 514d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts |= 5152bab08fcSVikas Chaudhary cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 516ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 517ed1086e0SVikas Chaudhary } else { 518d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts &= 5192bab08fcSVikas Chaudhary cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 520d00efe3fSMike Christie 0xFFFF); 521ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 522ed1086e0SVikas Chaudhary } 523d00efe3fSMike Christie break; 524d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 525d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 526d00efe3fSMike Christie break; 527d00efe3fSMike Christie init_fw_cb->ipv4_vlan_tag = *(uint16_t *)iface_param->value; 528d00efe3fSMike Christie break; 529d00efe3fSMike Christie default: 530d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 531d00efe3fSMike Christie iface_param->param); 532d00efe3fSMike Christie break; 533d00efe3fSMike Christie } 534d00efe3fSMike Christie } 535d00efe3fSMike Christie 536d00efe3fSMike Christie static void 537d00efe3fSMike Christie qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 538d00efe3fSMike Christie { 539d00efe3fSMike Christie struct addr_ctrl_blk_def *acb; 540d00efe3fSMike Christie acb = (struct addr_ctrl_blk_def *)init_fw_cb; 541d00efe3fSMike Christie memset(acb->reserved1, 0, sizeof(acb->reserved1)); 542d00efe3fSMike Christie memset(acb->reserved2, 0, sizeof(acb->reserved2)); 543d00efe3fSMike Christie memset(acb->reserved3, 0, sizeof(acb->reserved3)); 544d00efe3fSMike Christie memset(acb->reserved4, 0, sizeof(acb->reserved4)); 545d00efe3fSMike Christie memset(acb->reserved5, 0, sizeof(acb->reserved5)); 546d00efe3fSMike Christie memset(acb->reserved6, 0, sizeof(acb->reserved6)); 547d00efe3fSMike Christie memset(acb->reserved7, 0, sizeof(acb->reserved7)); 548d00efe3fSMike Christie memset(acb->reserved8, 0, sizeof(acb->reserved8)); 549d00efe3fSMike Christie memset(acb->reserved9, 0, sizeof(acb->reserved9)); 550d00efe3fSMike Christie memset(acb->reserved10, 0, sizeof(acb->reserved10)); 551d00efe3fSMike Christie memset(acb->reserved11, 0, sizeof(acb->reserved11)); 552d00efe3fSMike Christie memset(acb->reserved12, 0, sizeof(acb->reserved12)); 553d00efe3fSMike Christie memset(acb->reserved13, 0, sizeof(acb->reserved13)); 554d00efe3fSMike Christie memset(acb->reserved14, 0, sizeof(acb->reserved14)); 555d00efe3fSMike Christie memset(acb->reserved15, 0, sizeof(acb->reserved15)); 556d00efe3fSMike Christie } 557d00efe3fSMike Christie 558d00efe3fSMike Christie static int 559d00efe3fSMike Christie qla4xxx_iface_set_param(struct Scsi_Host *shost, char *data, int count) 560d00efe3fSMike Christie { 561d00efe3fSMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 562d00efe3fSMike Christie int rval = 0; 563d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param = NULL; 564d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb = NULL; 565d00efe3fSMike Christie dma_addr_t init_fw_cb_dma; 566d00efe3fSMike Christie uint32_t mbox_cmd[MBOX_REG_COUNT]; 567d00efe3fSMike Christie uint32_t mbox_sts[MBOX_REG_COUNT]; 568d00efe3fSMike Christie uint32_t total_param_count; 569d00efe3fSMike Christie uint32_t length; 570d00efe3fSMike Christie 571d00efe3fSMike Christie init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 572d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 573d00efe3fSMike Christie &init_fw_cb_dma, GFP_KERNEL); 574d00efe3fSMike Christie if (!init_fw_cb) { 575d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 576d00efe3fSMike Christie __func__); 577d00efe3fSMike Christie return -ENOMEM; 578d00efe3fSMike Christie } 579d00efe3fSMike Christie 580d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 581d00efe3fSMike Christie memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 582d00efe3fSMike Christie memset(&mbox_sts, 0, sizeof(mbox_sts)); 583d00efe3fSMike Christie 584d00efe3fSMike Christie if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 585d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 586d00efe3fSMike Christie rval = -EIO; 587d00efe3fSMike Christie goto exit_init_fw_cb; 588d00efe3fSMike Christie } 589d00efe3fSMike Christie 590d00efe3fSMike Christie total_param_count = count; 591d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *)data; 592d00efe3fSMike Christie 593d00efe3fSMike Christie for ( ; total_param_count != 0; total_param_count--) { 594d00efe3fSMike Christie length = iface_param->len; 595d00efe3fSMike Christie 596d00efe3fSMike Christie if (iface_param->param_type != ISCSI_NET_PARAM) 597d00efe3fSMike Christie continue; 598d00efe3fSMike Christie 599d00efe3fSMike Christie switch (iface_param->iface_type) { 600d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV4: 601d00efe3fSMike Christie switch (iface_param->iface_num) { 602d00efe3fSMike Christie case 0: 603d00efe3fSMike Christie qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 604d00efe3fSMike Christie break; 605d00efe3fSMike Christie default: 606d00efe3fSMike Christie /* Cannot have more than one IPv4 interface */ 607d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 608d00efe3fSMike Christie "number = %d\n", 609d00efe3fSMike Christie iface_param->iface_num); 610d00efe3fSMike Christie break; 611d00efe3fSMike Christie } 612d00efe3fSMike Christie break; 613d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV6: 614d00efe3fSMike Christie switch (iface_param->iface_num) { 615d00efe3fSMike Christie case 0: 616d00efe3fSMike Christie case 1: 617d00efe3fSMike Christie qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 618d00efe3fSMike Christie break; 619d00efe3fSMike Christie default: 620d00efe3fSMike Christie /* Cannot have more than two IPv6 interface */ 621d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 622d00efe3fSMike Christie "number = %d\n", 623d00efe3fSMike Christie iface_param->iface_num); 624d00efe3fSMike Christie break; 625d00efe3fSMike Christie } 626d00efe3fSMike Christie break; 627d00efe3fSMike Christie default: 628d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 629d00efe3fSMike Christie break; 630d00efe3fSMike Christie } 631d00efe3fSMike Christie 632d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *) 633d00efe3fSMike Christie ((uint8_t *)iface_param + 634d00efe3fSMike Christie sizeof(struct iscsi_iface_param_info) + length); 635d00efe3fSMike Christie } 636d00efe3fSMike Christie 637d00efe3fSMike Christie init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 638d00efe3fSMike Christie 639d00efe3fSMike Christie rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 640d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 641d00efe3fSMike Christie FLASH_OPT_RMW_COMMIT); 642d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 643d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 644d00efe3fSMike Christie __func__); 645d00efe3fSMike Christie rval = -EIO; 646d00efe3fSMike Christie goto exit_init_fw_cb; 647d00efe3fSMike Christie } 648d00efe3fSMike Christie 649d00efe3fSMike Christie qla4xxx_disable_acb(ha); 650d00efe3fSMike Christie 651d00efe3fSMike Christie qla4xxx_initcb_to_acb(init_fw_cb); 652d00efe3fSMike Christie 653d00efe3fSMike Christie rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 654d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 655d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 656d00efe3fSMike Christie __func__); 657d00efe3fSMike Christie rval = -EIO; 658d00efe3fSMike Christie goto exit_init_fw_cb; 659d00efe3fSMike Christie } 660d00efe3fSMike Christie 661d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 662d00efe3fSMike Christie qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 663d00efe3fSMike Christie init_fw_cb_dma); 664d00efe3fSMike Christie 665d00efe3fSMike Christie exit_init_fw_cb: 666d00efe3fSMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 667d00efe3fSMike Christie init_fw_cb, init_fw_cb_dma); 668d00efe3fSMike Christie 669d00efe3fSMike Christie return rval; 670d00efe3fSMike Christie } 671d00efe3fSMike Christie 672afaf5a2dSDavid Somayajulu static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess, 673afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 674afaf5a2dSDavid Somayajulu { 675afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = sess->dd_data; 676afaf5a2dSDavid Somayajulu int len; 677afaf5a2dSDavid Somayajulu 678afaf5a2dSDavid Somayajulu switch (param) { 679afaf5a2dSDavid Somayajulu case ISCSI_PARAM_TARGET_NAME: 680afaf5a2dSDavid Somayajulu len = snprintf(buf, PAGE_SIZE - 1, "%s\n", 681afaf5a2dSDavid Somayajulu ddb_entry->iscsi_name); 682afaf5a2dSDavid Somayajulu break; 683afaf5a2dSDavid Somayajulu case ISCSI_PARAM_TPGT: 684afaf5a2dSDavid Somayajulu len = sprintf(buf, "%u\n", ddb_entry->tpgt); 685afaf5a2dSDavid Somayajulu break; 6863b2bef1fSVikas Chaudhary case ISCSI_PARAM_TARGET_ALIAS: 6873b2bef1fSVikas Chaudhary len = snprintf(buf, PAGE_SIZE - 1, "%s\n", 6883b2bef1fSVikas Chaudhary ddb_entry->iscsi_alias); 6893b2bef1fSVikas Chaudhary break; 690afaf5a2dSDavid Somayajulu default: 691afaf5a2dSDavid Somayajulu return -ENOSYS; 692afaf5a2dSDavid Somayajulu } 693afaf5a2dSDavid Somayajulu 694afaf5a2dSDavid Somayajulu return len; 695afaf5a2dSDavid Somayajulu } 696afaf5a2dSDavid Somayajulu 697afaf5a2dSDavid Somayajulu static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 698afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 699afaf5a2dSDavid Somayajulu { 700afaf5a2dSDavid Somayajulu struct iscsi_cls_session *session; 701afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry; 702afaf5a2dSDavid Somayajulu int len; 703afaf5a2dSDavid Somayajulu 704afaf5a2dSDavid Somayajulu session = iscsi_dev_to_session(conn->dev.parent); 705afaf5a2dSDavid Somayajulu ddb_entry = session->dd_data; 706afaf5a2dSDavid Somayajulu 707afaf5a2dSDavid Somayajulu switch (param) { 708afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_PORT: 709afaf5a2dSDavid Somayajulu len = sprintf(buf, "%hu\n", ddb_entry->port); 710afaf5a2dSDavid Somayajulu break; 711afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_ADDRESS: 712afaf5a2dSDavid Somayajulu /* TODO: what are the ipv6 bits */ 71363779436SHarvey Harrison len = sprintf(buf, "%pI4\n", &ddb_entry->ip_addr); 714afaf5a2dSDavid Somayajulu break; 715afaf5a2dSDavid Somayajulu default: 716afaf5a2dSDavid Somayajulu return -ENOSYS; 717afaf5a2dSDavid Somayajulu } 718afaf5a2dSDavid Somayajulu 719afaf5a2dSDavid Somayajulu return len; 720afaf5a2dSDavid Somayajulu } 721afaf5a2dSDavid Somayajulu 7222174a04eSMike Christie static int qla4xxx_tgt_dscvr(struct Scsi_Host *shost, 7232174a04eSMike Christie enum iscsi_tgt_dscvr type, uint32_t enable, 7242174a04eSMike Christie struct sockaddr *dst_addr) 725afaf5a2dSDavid Somayajulu { 726afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 727afaf5a2dSDavid Somayajulu struct sockaddr_in *addr; 728afaf5a2dSDavid Somayajulu struct sockaddr_in6 *addr6; 729afaf5a2dSDavid Somayajulu int ret = 0; 730afaf5a2dSDavid Somayajulu 731afaf5a2dSDavid Somayajulu ha = (struct scsi_qla_host *) shost->hostdata; 732afaf5a2dSDavid Somayajulu 733afaf5a2dSDavid Somayajulu switch (type) { 734afaf5a2dSDavid Somayajulu case ISCSI_TGT_DSCVR_SEND_TARGETS: 735afaf5a2dSDavid Somayajulu if (dst_addr->sa_family == AF_INET) { 736afaf5a2dSDavid Somayajulu addr = (struct sockaddr_in *)dst_addr; 737afaf5a2dSDavid Somayajulu if (qla4xxx_send_tgts(ha, (char *)&addr->sin_addr, 738afaf5a2dSDavid Somayajulu addr->sin_port) != QLA_SUCCESS) 739afaf5a2dSDavid Somayajulu ret = -EIO; 740afaf5a2dSDavid Somayajulu } else if (dst_addr->sa_family == AF_INET6) { 741afaf5a2dSDavid Somayajulu /* 742afaf5a2dSDavid Somayajulu * TODO: fix qla4xxx_send_tgts 743afaf5a2dSDavid Somayajulu */ 744afaf5a2dSDavid Somayajulu addr6 = (struct sockaddr_in6 *)dst_addr; 745afaf5a2dSDavid Somayajulu if (qla4xxx_send_tgts(ha, (char *)&addr6->sin6_addr, 746afaf5a2dSDavid Somayajulu addr6->sin6_port) != QLA_SUCCESS) 747afaf5a2dSDavid Somayajulu ret = -EIO; 748afaf5a2dSDavid Somayajulu } else 749afaf5a2dSDavid Somayajulu ret = -ENOSYS; 750afaf5a2dSDavid Somayajulu break; 751afaf5a2dSDavid Somayajulu default: 752afaf5a2dSDavid Somayajulu ret = -ENOSYS; 753afaf5a2dSDavid Somayajulu } 754afaf5a2dSDavid Somayajulu return ret; 755afaf5a2dSDavid Somayajulu } 756afaf5a2dSDavid Somayajulu 757afaf5a2dSDavid Somayajulu void qla4xxx_destroy_sess(struct ddb_entry *ddb_entry) 758afaf5a2dSDavid Somayajulu { 759afaf5a2dSDavid Somayajulu if (!ddb_entry->sess) 760afaf5a2dSDavid Somayajulu return; 761afaf5a2dSDavid Somayajulu 762afaf5a2dSDavid Somayajulu if (ddb_entry->conn) { 76326974789SMike Christie atomic_set(&ddb_entry->state, DDB_STATE_DEAD); 764afaf5a2dSDavid Somayajulu iscsi_remove_session(ddb_entry->sess); 765afaf5a2dSDavid Somayajulu } 766afaf5a2dSDavid Somayajulu iscsi_free_session(ddb_entry->sess); 767afaf5a2dSDavid Somayajulu } 768afaf5a2dSDavid Somayajulu 769afaf5a2dSDavid Somayajulu int qla4xxx_add_sess(struct ddb_entry *ddb_entry) 770afaf5a2dSDavid Somayajulu { 771afaf5a2dSDavid Somayajulu int err; 772afaf5a2dSDavid Somayajulu 7733038727cSVikas Chaudhary ddb_entry->sess->recovery_tmo = ql4xsess_recovery_tmo; 7743013cea8SVikas Chaudhary 775afaf5a2dSDavid Somayajulu err = iscsi_add_session(ddb_entry->sess, ddb_entry->fw_ddb_index); 776afaf5a2dSDavid Somayajulu if (err) { 777afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_ERR "Could not add session.\n")); 778afaf5a2dSDavid Somayajulu return err; 779afaf5a2dSDavid Somayajulu } 780afaf5a2dSDavid Somayajulu 7815d91e209SMike Christie ddb_entry->conn = iscsi_create_conn(ddb_entry->sess, 0, 0); 782afaf5a2dSDavid Somayajulu if (!ddb_entry->conn) { 783afaf5a2dSDavid Somayajulu iscsi_remove_session(ddb_entry->sess); 784afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_ERR "Could not add connection.\n")); 785afaf5a2dSDavid Somayajulu return -ENOMEM; 786afaf5a2dSDavid Somayajulu } 787b635930dSMike Christie 788b635930dSMike Christie /* finally ready to go */ 789b635930dSMike Christie iscsi_unblock_session(ddb_entry->sess); 790afaf5a2dSDavid Somayajulu return 0; 791afaf5a2dSDavid Somayajulu } 792afaf5a2dSDavid Somayajulu 793afaf5a2dSDavid Somayajulu struct ddb_entry *qla4xxx_alloc_sess(struct scsi_qla_host *ha) 794afaf5a2dSDavid Somayajulu { 795afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry; 796afaf5a2dSDavid Somayajulu struct iscsi_cls_session *sess; 797afaf5a2dSDavid Somayajulu 7985d91e209SMike Christie sess = iscsi_alloc_session(ha->host, &qla4xxx_iscsi_transport, 7995d91e209SMike Christie sizeof(struct ddb_entry)); 800afaf5a2dSDavid Somayajulu if (!sess) 801afaf5a2dSDavid Somayajulu return NULL; 802afaf5a2dSDavid Somayajulu 803afaf5a2dSDavid Somayajulu ddb_entry = sess->dd_data; 804afaf5a2dSDavid Somayajulu memset(ddb_entry, 0, sizeof(*ddb_entry)); 805afaf5a2dSDavid Somayajulu ddb_entry->ha = ha; 806afaf5a2dSDavid Somayajulu ddb_entry->sess = sess; 807afaf5a2dSDavid Somayajulu return ddb_entry; 808afaf5a2dSDavid Somayajulu } 809afaf5a2dSDavid Somayajulu 810024f801fSMike Christie static void qla4xxx_scan_start(struct Scsi_Host *shost) 811024f801fSMike Christie { 812024f801fSMike Christie struct scsi_qla_host *ha = shost_priv(shost); 813024f801fSMike Christie struct ddb_entry *ddb_entry, *ddbtemp; 814024f801fSMike Christie 815024f801fSMike Christie /* finish setup of sessions that were already setup in firmware */ 816024f801fSMike Christie list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) { 817024f801fSMike Christie if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) 818024f801fSMike Christie qla4xxx_add_sess(ddb_entry); 819024f801fSMike Christie } 820024f801fSMike Christie } 821024f801fSMike Christie 822afaf5a2dSDavid Somayajulu /* 823afaf5a2dSDavid Somayajulu * Timer routines 824afaf5a2dSDavid Somayajulu */ 825afaf5a2dSDavid Somayajulu 826afaf5a2dSDavid Somayajulu static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 827afaf5a2dSDavid Somayajulu unsigned long interval) 828afaf5a2dSDavid Somayajulu { 829afaf5a2dSDavid Somayajulu DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 830afaf5a2dSDavid Somayajulu __func__, ha->host->host_no)); 831afaf5a2dSDavid Somayajulu init_timer(&ha->timer); 832afaf5a2dSDavid Somayajulu ha->timer.expires = jiffies + interval * HZ; 833afaf5a2dSDavid Somayajulu ha->timer.data = (unsigned long)ha; 834afaf5a2dSDavid Somayajulu ha->timer.function = (void (*)(unsigned long))func; 835afaf5a2dSDavid Somayajulu add_timer(&ha->timer); 836afaf5a2dSDavid Somayajulu ha->timer_active = 1; 837afaf5a2dSDavid Somayajulu } 838afaf5a2dSDavid Somayajulu 839afaf5a2dSDavid Somayajulu static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 840afaf5a2dSDavid Somayajulu { 841afaf5a2dSDavid Somayajulu del_timer_sync(&ha->timer); 842afaf5a2dSDavid Somayajulu ha->timer_active = 0; 843afaf5a2dSDavid Somayajulu } 844afaf5a2dSDavid Somayajulu 845afaf5a2dSDavid Somayajulu /*** 846afaf5a2dSDavid Somayajulu * qla4xxx_mark_device_missing - mark a device as missing. 847afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 848afaf5a2dSDavid Somayajulu * @ddb_entry: Pointer to device database entry 849afaf5a2dSDavid Somayajulu * 850f4f5df23SVikas Chaudhary * This routine marks a device missing and close connection. 851afaf5a2dSDavid Somayajulu **/ 852afaf5a2dSDavid Somayajulu void qla4xxx_mark_device_missing(struct scsi_qla_host *ha, 853afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry) 854afaf5a2dSDavid Somayajulu { 855f4f5df23SVikas Chaudhary if ((atomic_read(&ddb_entry->state) != DDB_STATE_DEAD)) { 856afaf5a2dSDavid Somayajulu atomic_set(&ddb_entry->state, DDB_STATE_MISSING); 857f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: ddb [%d] marked MISSING\n", 858f4f5df23SVikas Chaudhary ha->host_no, ddb_entry->fw_ddb_index)); 859f4f5df23SVikas Chaudhary } else 860f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: ddb [%d] DEAD\n", ha->host_no, 861f4f5df23SVikas Chaudhary ddb_entry->fw_ddb_index)) 862f4f5df23SVikas Chaudhary 863b635930dSMike Christie iscsi_block_session(ddb_entry->sess); 864e5bd7b54SMike Christie iscsi_conn_error_event(ddb_entry->conn, ISCSI_ERR_CONN_FAILED); 865afaf5a2dSDavid Somayajulu } 866afaf5a2dSDavid Somayajulu 867f4f5df23SVikas Chaudhary /** 868f4f5df23SVikas Chaudhary * qla4xxx_mark_all_devices_missing - mark all devices as missing. 869f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 870f4f5df23SVikas Chaudhary * 871f4f5df23SVikas Chaudhary * This routine marks a device missing and resets the relogin retry count. 872f4f5df23SVikas Chaudhary **/ 873f4f5df23SVikas Chaudhary void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 874f4f5df23SVikas Chaudhary { 875f4f5df23SVikas Chaudhary struct ddb_entry *ddb_entry, *ddbtemp; 876f4f5df23SVikas Chaudhary list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) { 877f4f5df23SVikas Chaudhary qla4xxx_mark_device_missing(ha, ddb_entry); 878f4f5df23SVikas Chaudhary } 879f4f5df23SVikas Chaudhary } 880f4f5df23SVikas Chaudhary 881afaf5a2dSDavid Somayajulu static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 882afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, 8838f0722caSVikas Chaudhary struct scsi_cmnd *cmd) 884afaf5a2dSDavid Somayajulu { 885afaf5a2dSDavid Somayajulu struct srb *srb; 886afaf5a2dSDavid Somayajulu 887afaf5a2dSDavid Somayajulu srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 888afaf5a2dSDavid Somayajulu if (!srb) 889afaf5a2dSDavid Somayajulu return srb; 890afaf5a2dSDavid Somayajulu 89109a0f719SVikas Chaudhary kref_init(&srb->srb_ref); 892afaf5a2dSDavid Somayajulu srb->ha = ha; 893afaf5a2dSDavid Somayajulu srb->ddb = ddb_entry; 894afaf5a2dSDavid Somayajulu srb->cmd = cmd; 895afaf5a2dSDavid Somayajulu srb->flags = 0; 8965369887aSVikas Chaudhary CMD_SP(cmd) = (void *)srb; 897afaf5a2dSDavid Somayajulu 898afaf5a2dSDavid Somayajulu return srb; 899afaf5a2dSDavid Somayajulu } 900afaf5a2dSDavid Somayajulu 901afaf5a2dSDavid Somayajulu static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 902afaf5a2dSDavid Somayajulu { 903afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 904afaf5a2dSDavid Somayajulu 905afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 9065f7186c8SFUJITA Tomonori scsi_dma_unmap(cmd); 907afaf5a2dSDavid Somayajulu srb->flags &= ~SRB_DMA_VALID; 908afaf5a2dSDavid Somayajulu } 9095369887aSVikas Chaudhary CMD_SP(cmd) = NULL; 910afaf5a2dSDavid Somayajulu } 911afaf5a2dSDavid Somayajulu 91209a0f719SVikas Chaudhary void qla4xxx_srb_compl(struct kref *ref) 913afaf5a2dSDavid Somayajulu { 91409a0f719SVikas Chaudhary struct srb *srb = container_of(ref, struct srb, srb_ref); 915afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 91609a0f719SVikas Chaudhary struct scsi_qla_host *ha = srb->ha; 917afaf5a2dSDavid Somayajulu 918afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 919afaf5a2dSDavid Somayajulu 920afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 921afaf5a2dSDavid Somayajulu 922afaf5a2dSDavid Somayajulu cmd->scsi_done(cmd); 923afaf5a2dSDavid Somayajulu } 924afaf5a2dSDavid Somayajulu 925afaf5a2dSDavid Somayajulu /** 926afaf5a2dSDavid Somayajulu * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 9278f0722caSVikas Chaudhary * @host: scsi host 928afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 929afaf5a2dSDavid Somayajulu * 930afaf5a2dSDavid Somayajulu * Remarks: 931afaf5a2dSDavid Somayajulu * This routine is invoked by Linux to send a SCSI command to the driver. 932afaf5a2dSDavid Somayajulu * The mid-level driver tries to ensure that queuecommand never gets 933afaf5a2dSDavid Somayajulu * invoked concurrently with itself or the interrupt handler (although 934afaf5a2dSDavid Somayajulu * the interrupt handler may call this routine as part of request- 935afaf5a2dSDavid Somayajulu * completion handling). Unfortunely, it sometimes calls the scheduler 936afaf5a2dSDavid Somayajulu * in interrupt context which is a big NO! NO!. 937afaf5a2dSDavid Somayajulu **/ 9388f0722caSVikas Chaudhary static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 939afaf5a2dSDavid Somayajulu { 9408f0722caSVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(host); 941afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 9427fb1921bSMike Christie struct iscsi_cls_session *sess = ddb_entry->sess; 943afaf5a2dSDavid Somayajulu struct srb *srb; 944afaf5a2dSDavid Somayajulu int rval; 945afaf5a2dSDavid Somayajulu 9462232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 9472232be0dSLalit Chandivade if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 9482232be0dSLalit Chandivade cmd->result = DID_NO_CONNECT << 16; 9492232be0dSLalit Chandivade else 9502232be0dSLalit Chandivade cmd->result = DID_REQUEUE << 16; 9512232be0dSLalit Chandivade goto qc_fail_command; 9522232be0dSLalit Chandivade } 9532232be0dSLalit Chandivade 9547fb1921bSMike Christie if (!sess) { 9557fb1921bSMike Christie cmd->result = DID_IMM_RETRY << 16; 9567fb1921bSMike Christie goto qc_fail_command; 9577fb1921bSMike Christie } 9587fb1921bSMike Christie 9597fb1921bSMike Christie rval = iscsi_session_chkready(sess); 9607fb1921bSMike Christie if (rval) { 9617fb1921bSMike Christie cmd->result = rval; 9627fb1921bSMike Christie goto qc_fail_command; 9637fb1921bSMike Christie } 9647fb1921bSMike Christie 965afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { 966afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD) { 967afaf5a2dSDavid Somayajulu cmd->result = DID_NO_CONNECT << 16; 968afaf5a2dSDavid Somayajulu goto qc_fail_command; 969afaf5a2dSDavid Somayajulu } 970c5e98e91SMike Christie return SCSI_MLQUEUE_TARGET_BUSY; 971afaf5a2dSDavid Somayajulu } 972afaf5a2dSDavid Somayajulu 973f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 974f4f5df23SVikas Chaudhary test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 975f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA, &ha->dpc_flags) || 976f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 977f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 978f4f5df23SVikas Chaudhary !test_bit(AF_ONLINE, &ha->flags) || 979f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 980477ffb9dSDavid C Somayajulu goto qc_host_busy; 981477ffb9dSDavid C Somayajulu 9828f0722caSVikas Chaudhary srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 983afaf5a2dSDavid Somayajulu if (!srb) 9848f0722caSVikas Chaudhary goto qc_host_busy; 985afaf5a2dSDavid Somayajulu 986afaf5a2dSDavid Somayajulu rval = qla4xxx_send_command_to_isp(ha, srb); 987afaf5a2dSDavid Somayajulu if (rval != QLA_SUCCESS) 988afaf5a2dSDavid Somayajulu goto qc_host_busy_free_sp; 989afaf5a2dSDavid Somayajulu 990afaf5a2dSDavid Somayajulu return 0; 991afaf5a2dSDavid Somayajulu 992afaf5a2dSDavid Somayajulu qc_host_busy_free_sp: 993afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 994afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 995afaf5a2dSDavid Somayajulu 996afaf5a2dSDavid Somayajulu qc_host_busy: 997afaf5a2dSDavid Somayajulu return SCSI_MLQUEUE_HOST_BUSY; 998afaf5a2dSDavid Somayajulu 999afaf5a2dSDavid Somayajulu qc_fail_command: 10008f0722caSVikas Chaudhary cmd->scsi_done(cmd); 1001afaf5a2dSDavid Somayajulu 1002afaf5a2dSDavid Somayajulu return 0; 1003afaf5a2dSDavid Somayajulu } 1004afaf5a2dSDavid Somayajulu 1005afaf5a2dSDavid Somayajulu /** 1006afaf5a2dSDavid Somayajulu * qla4xxx_mem_free - frees memory allocated to adapter 1007afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1008afaf5a2dSDavid Somayajulu * 1009afaf5a2dSDavid Somayajulu * Frees memory previously allocated by qla4xxx_mem_alloc 1010afaf5a2dSDavid Somayajulu **/ 1011afaf5a2dSDavid Somayajulu static void qla4xxx_mem_free(struct scsi_qla_host *ha) 1012afaf5a2dSDavid Somayajulu { 1013afaf5a2dSDavid Somayajulu if (ha->queues) 1014afaf5a2dSDavid Somayajulu dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 1015afaf5a2dSDavid Somayajulu ha->queues_dma); 1016afaf5a2dSDavid Somayajulu 1017afaf5a2dSDavid Somayajulu ha->queues_len = 0; 1018afaf5a2dSDavid Somayajulu ha->queues = NULL; 1019afaf5a2dSDavid Somayajulu ha->queues_dma = 0; 1020afaf5a2dSDavid Somayajulu ha->request_ring = NULL; 1021afaf5a2dSDavid Somayajulu ha->request_dma = 0; 1022afaf5a2dSDavid Somayajulu ha->response_ring = NULL; 1023afaf5a2dSDavid Somayajulu ha->response_dma = 0; 1024afaf5a2dSDavid Somayajulu ha->shadow_regs = NULL; 1025afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = 0; 1026afaf5a2dSDavid Somayajulu 1027afaf5a2dSDavid Somayajulu /* Free srb pool. */ 1028afaf5a2dSDavid Somayajulu if (ha->srb_mempool) 1029afaf5a2dSDavid Somayajulu mempool_destroy(ha->srb_mempool); 1030afaf5a2dSDavid Somayajulu 1031afaf5a2dSDavid Somayajulu ha->srb_mempool = NULL; 1032afaf5a2dSDavid Somayajulu 1033afaf5a2dSDavid Somayajulu /* release io space registers */ 1034f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1035f4f5df23SVikas Chaudhary if (ha->nx_pcibase) 1036f4f5df23SVikas Chaudhary iounmap( 1037f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)ha->nx_pcibase); 1038f4f5df23SVikas Chaudhary } else if (ha->reg) 1039afaf5a2dSDavid Somayajulu iounmap(ha->reg); 1040afaf5a2dSDavid Somayajulu pci_release_regions(ha->pdev); 1041afaf5a2dSDavid Somayajulu } 1042afaf5a2dSDavid Somayajulu 1043afaf5a2dSDavid Somayajulu /** 1044afaf5a2dSDavid Somayajulu * qla4xxx_mem_alloc - allocates memory for use by adapter. 1045afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 1046afaf5a2dSDavid Somayajulu * 1047afaf5a2dSDavid Somayajulu * Allocates DMA memory for request and response queues. Also allocates memory 1048afaf5a2dSDavid Somayajulu * for srbs. 1049afaf5a2dSDavid Somayajulu **/ 1050afaf5a2dSDavid Somayajulu static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 1051afaf5a2dSDavid Somayajulu { 1052afaf5a2dSDavid Somayajulu unsigned long align; 1053afaf5a2dSDavid Somayajulu 1054afaf5a2dSDavid Somayajulu /* Allocate contiguous block of DMA memory for queues. */ 1055afaf5a2dSDavid Somayajulu ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1056afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 1057afaf5a2dSDavid Somayajulu sizeof(struct shadow_regs) + 1058afaf5a2dSDavid Somayajulu MEM_ALIGN_VALUE + 1059afaf5a2dSDavid Somayajulu (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 1060afaf5a2dSDavid Somayajulu ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 1061afaf5a2dSDavid Somayajulu &ha->queues_dma, GFP_KERNEL); 1062afaf5a2dSDavid Somayajulu if (ha->queues == NULL) { 1063c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1064afaf5a2dSDavid Somayajulu "Memory Allocation failed - queues.\n"); 1065afaf5a2dSDavid Somayajulu 1066afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1067afaf5a2dSDavid Somayajulu } 1068afaf5a2dSDavid Somayajulu memset(ha->queues, 0, ha->queues_len); 1069afaf5a2dSDavid Somayajulu 1070afaf5a2dSDavid Somayajulu /* 1071afaf5a2dSDavid Somayajulu * As per RISC alignment requirements -- the bus-address must be a 1072afaf5a2dSDavid Somayajulu * multiple of the request-ring size (in bytes). 1073afaf5a2dSDavid Somayajulu */ 1074afaf5a2dSDavid Somayajulu align = 0; 1075afaf5a2dSDavid Somayajulu if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 1076afaf5a2dSDavid Somayajulu align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 1077afaf5a2dSDavid Somayajulu (MEM_ALIGN_VALUE - 1)); 1078afaf5a2dSDavid Somayajulu 1079afaf5a2dSDavid Somayajulu /* Update request and response queue pointers. */ 1080afaf5a2dSDavid Somayajulu ha->request_dma = ha->queues_dma + align; 1081afaf5a2dSDavid Somayajulu ha->request_ring = (struct queue_entry *) (ha->queues + align); 1082afaf5a2dSDavid Somayajulu ha->response_dma = ha->queues_dma + align + 1083afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 1084afaf5a2dSDavid Somayajulu ha->response_ring = (struct queue_entry *) (ha->queues + align + 1085afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1086afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1087afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = ha->queues_dma + align + 1088afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1089afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 1090afaf5a2dSDavid Somayajulu ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 1091afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1092afaf5a2dSDavid Somayajulu QUEUE_SIZE) + 1093afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * 1094afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1095afaf5a2dSDavid Somayajulu 1096afaf5a2dSDavid Somayajulu /* Allocate memory for srb pool. */ 1097afaf5a2dSDavid Somayajulu ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 1098afaf5a2dSDavid Somayajulu mempool_free_slab, srb_cachep); 1099afaf5a2dSDavid Somayajulu if (ha->srb_mempool == NULL) { 1100c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1101afaf5a2dSDavid Somayajulu "Memory Allocation failed - SRB Pool.\n"); 1102afaf5a2dSDavid Somayajulu 1103afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1104afaf5a2dSDavid Somayajulu } 1105afaf5a2dSDavid Somayajulu 1106afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 1107afaf5a2dSDavid Somayajulu 1108afaf5a2dSDavid Somayajulu mem_alloc_error_exit: 1109afaf5a2dSDavid Somayajulu qla4xxx_mem_free(ha); 1110afaf5a2dSDavid Somayajulu return QLA_ERROR; 1111afaf5a2dSDavid Somayajulu } 1112afaf5a2dSDavid Somayajulu 1113afaf5a2dSDavid Somayajulu /** 1114f4f5df23SVikas Chaudhary * qla4_8xxx_check_fw_alive - Check firmware health 1115f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1116f4f5df23SVikas Chaudhary * 1117f4f5df23SVikas Chaudhary * Context: Interrupt 1118f4f5df23SVikas Chaudhary **/ 1119f4f5df23SVikas Chaudhary static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 1120f4f5df23SVikas Chaudhary { 1121f4f5df23SVikas Chaudhary uint32_t fw_heartbeat_counter, halt_status; 1122f4f5df23SVikas Chaudhary 1123f4f5df23SVikas Chaudhary fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 11242232be0dSLalit Chandivade /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 11252232be0dSLalit Chandivade if (fw_heartbeat_counter == 0xffffffff) { 11262232be0dSLalit Chandivade DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 11272232be0dSLalit Chandivade "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 11282232be0dSLalit Chandivade ha->host_no, __func__)); 11292232be0dSLalit Chandivade return; 11302232be0dSLalit Chandivade } 1131f4f5df23SVikas Chaudhary 1132f4f5df23SVikas Chaudhary if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 1133f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat++; 1134f4f5df23SVikas Chaudhary /* FW not alive after 2 seconds */ 1135f4f5df23SVikas Chaudhary if (ha->seconds_since_last_heartbeat == 2) { 1136f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat = 0; 1137f4f5df23SVikas Chaudhary halt_status = qla4_8xxx_rd_32(ha, 1138f4f5df23SVikas Chaudhary QLA82XX_PEG_HALT_STATUS1); 113968d92ebfSVikas Chaudhary 114068d92ebfSVikas Chaudhary ql4_printk(KERN_INFO, ha, 114168d92ebfSVikas Chaudhary "scsi(%ld): %s, Dumping hw/fw registers:\n " 114268d92ebfSVikas Chaudhary " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:" 114368d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:" 114468d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:" 114568d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_4_PC: 0x%x\n", 114668d92ebfSVikas Chaudhary ha->host_no, __func__, halt_status, 114768d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, 114868d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 114968d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 115068d92ebfSVikas Chaudhary 0x3c), 115168d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 115268d92ebfSVikas Chaudhary 0x3c), 115368d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 115468d92ebfSVikas Chaudhary 0x3c), 115568d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 115668d92ebfSVikas Chaudhary 0x3c), 115768d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 115868d92ebfSVikas Chaudhary 0x3c)); 115921033639SNilesh Javali 1160f4f5df23SVikas Chaudhary /* Since we cannot change dev_state in interrupt 1161f4f5df23SVikas Chaudhary * context, set appropriate DPC flag then wakeup 1162f4f5df23SVikas Chaudhary * DPC */ 1163f4f5df23SVikas Chaudhary if (halt_status & HALT_STATUS_UNRECOVERABLE) 1164f4f5df23SVikas Chaudhary set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 1165f4f5df23SVikas Chaudhary else { 1166f4f5df23SVikas Chaudhary printk("scsi%ld: %s: detect abort needed!\n", 1167f4f5df23SVikas Chaudhary ha->host_no, __func__); 1168f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1169f4f5df23SVikas Chaudhary } 1170f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 117121033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 1172f4f5df23SVikas Chaudhary } 117399457d75SLalit Chandivade } else 117499457d75SLalit Chandivade ha->seconds_since_last_heartbeat = 0; 117599457d75SLalit Chandivade 1176f4f5df23SVikas Chaudhary ha->fw_heartbeat_counter = fw_heartbeat_counter; 1177f4f5df23SVikas Chaudhary } 1178f4f5df23SVikas Chaudhary 1179f4f5df23SVikas Chaudhary /** 1180f4f5df23SVikas Chaudhary * qla4_8xxx_watchdog - Poll dev state 1181f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1182f4f5df23SVikas Chaudhary * 1183f4f5df23SVikas Chaudhary * Context: Interrupt 1184f4f5df23SVikas Chaudhary **/ 1185f4f5df23SVikas Chaudhary void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 1186f4f5df23SVikas Chaudhary { 1187f4f5df23SVikas Chaudhary uint32_t dev_state; 1188f4f5df23SVikas Chaudhary 1189f4f5df23SVikas Chaudhary dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 1190f4f5df23SVikas Chaudhary 1191f4f5df23SVikas Chaudhary /* don't poll if reset is going on */ 1192d56a1f7bSLalit Chandivade if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1193d56a1f7bSLalit Chandivade test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1194977f46a4SVikas Chaudhary test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 1195f4f5df23SVikas Chaudhary if (dev_state == QLA82XX_DEV_NEED_RESET && 1196f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 11973930b8c1SVikas Chaudhary if (!ql4xdontresethba) { 11983930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: " 11993930b8c1SVikas Chaudhary "NEED RESET!\n", __func__); 1200f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1201f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 120221033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 12033930b8c1SVikas Chaudhary } 1204f4f5df23SVikas Chaudhary } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT && 1205f4f5df23SVikas Chaudhary !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 12063930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 12073930b8c1SVikas Chaudhary __func__); 1208f4f5df23SVikas Chaudhary set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 1209f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1210f4f5df23SVikas Chaudhary } else { 1211f4f5df23SVikas Chaudhary /* Check firmware health */ 1212f4f5df23SVikas Chaudhary qla4_8xxx_check_fw_alive(ha); 1213f4f5df23SVikas Chaudhary } 1214f4f5df23SVikas Chaudhary } 1215f4f5df23SVikas Chaudhary } 1216f4f5df23SVikas Chaudhary 1217f4f5df23SVikas Chaudhary /** 1218afaf5a2dSDavid Somayajulu * qla4xxx_timer - checks every second for work to do. 1219afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1220afaf5a2dSDavid Somayajulu **/ 1221afaf5a2dSDavid Somayajulu static void qla4xxx_timer(struct scsi_qla_host *ha) 1222afaf5a2dSDavid Somayajulu { 1223afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, *dtemp; 1224afaf5a2dSDavid Somayajulu int start_dpc = 0; 12252232be0dSLalit Chandivade uint16_t w; 12262232be0dSLalit Chandivade 12272232be0dSLalit Chandivade /* If we are in the middle of AER/EEH processing 12282232be0dSLalit Chandivade * skip any processing and reschedule the timer 12292232be0dSLalit Chandivade */ 12302232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 12312232be0dSLalit Chandivade mod_timer(&ha->timer, jiffies + HZ); 12322232be0dSLalit Chandivade return; 12332232be0dSLalit Chandivade } 12342232be0dSLalit Chandivade 12352232be0dSLalit Chandivade /* Hardware read to trigger an EEH error during mailbox waits. */ 12362232be0dSLalit Chandivade if (!pci_channel_offline(ha->pdev)) 12372232be0dSLalit Chandivade pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 1238afaf5a2dSDavid Somayajulu 1239f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1240f4f5df23SVikas Chaudhary qla4_8xxx_watchdog(ha); 1241f4f5df23SVikas Chaudhary } 1242f4f5df23SVikas Chaudhary 1243afaf5a2dSDavid Somayajulu /* Search for relogin's to time-out and port down retry. */ 1244afaf5a2dSDavid Somayajulu list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) { 1245afaf5a2dSDavid Somayajulu /* Count down time between sending relogins */ 1246afaf5a2dSDavid Somayajulu if (adapter_up(ha) && 1247afaf5a2dSDavid Somayajulu !test_bit(DF_RELOGIN, &ddb_entry->flags) && 1248afaf5a2dSDavid Somayajulu atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) { 1249afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->retry_relogin_timer) != 1250afaf5a2dSDavid Somayajulu INVALID_ENTRY) { 1251afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->retry_relogin_timer) 1252afaf5a2dSDavid Somayajulu == 0) { 1253afaf5a2dSDavid Somayajulu atomic_set(&ddb_entry-> 1254afaf5a2dSDavid Somayajulu retry_relogin_timer, 1255afaf5a2dSDavid Somayajulu INVALID_ENTRY); 1256afaf5a2dSDavid Somayajulu set_bit(DPC_RELOGIN_DEVICE, 1257afaf5a2dSDavid Somayajulu &ha->dpc_flags); 1258afaf5a2dSDavid Somayajulu set_bit(DF_RELOGIN, &ddb_entry->flags); 1259f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: ddb [%d]" 1260afaf5a2dSDavid Somayajulu " login device\n", 1261afaf5a2dSDavid Somayajulu ha->host_no, __func__, 1262afaf5a2dSDavid Somayajulu ddb_entry->fw_ddb_index)); 1263afaf5a2dSDavid Somayajulu } else 1264afaf5a2dSDavid Somayajulu atomic_dec(&ddb_entry-> 1265afaf5a2dSDavid Somayajulu retry_relogin_timer); 1266afaf5a2dSDavid Somayajulu } 1267afaf5a2dSDavid Somayajulu } 1268afaf5a2dSDavid Somayajulu 1269afaf5a2dSDavid Somayajulu /* Wait for relogin to timeout */ 1270afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->relogin_timer) && 1271afaf5a2dSDavid Somayajulu (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 1272afaf5a2dSDavid Somayajulu /* 1273afaf5a2dSDavid Somayajulu * If the relogin times out and the device is 1274afaf5a2dSDavid Somayajulu * still NOT ONLINE then try and relogin again. 1275afaf5a2dSDavid Somayajulu */ 1276afaf5a2dSDavid Somayajulu if (atomic_read(&ddb_entry->state) != 1277afaf5a2dSDavid Somayajulu DDB_STATE_ONLINE && 1278afaf5a2dSDavid Somayajulu ddb_entry->fw_ddb_device_state == 1279afaf5a2dSDavid Somayajulu DDB_DS_SESSION_FAILED) { 1280afaf5a2dSDavid Somayajulu /* Reset retry relogin timer */ 1281afaf5a2dSDavid Somayajulu atomic_inc(&ddb_entry->relogin_retry_count); 1282f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: ddb [%d] relogin" 1283afaf5a2dSDavid Somayajulu " timed out-retrying" 1284afaf5a2dSDavid Somayajulu " relogin (%d)\n", 1285afaf5a2dSDavid Somayajulu ha->host_no, 1286afaf5a2dSDavid Somayajulu ddb_entry->fw_ddb_index, 1287afaf5a2dSDavid Somayajulu atomic_read(&ddb_entry-> 1288afaf5a2dSDavid Somayajulu relogin_retry_count)) 1289afaf5a2dSDavid Somayajulu ); 1290afaf5a2dSDavid Somayajulu start_dpc++; 1291f4f5df23SVikas Chaudhary DEBUG(printk("scsi%ld:%d:%d: ddb [%d] " 1292cd09b2c3SJustin P. Mattock "initiate relogin after" 1293afaf5a2dSDavid Somayajulu " %d seconds\n", 1294afaf5a2dSDavid Somayajulu ha->host_no, ddb_entry->bus, 1295afaf5a2dSDavid Somayajulu ddb_entry->target, 1296afaf5a2dSDavid Somayajulu ddb_entry->fw_ddb_index, 1297afaf5a2dSDavid Somayajulu ddb_entry->default_time2wait + 4) 1298afaf5a2dSDavid Somayajulu ); 1299afaf5a2dSDavid Somayajulu 1300afaf5a2dSDavid Somayajulu atomic_set(&ddb_entry->retry_relogin_timer, 1301afaf5a2dSDavid Somayajulu ddb_entry->default_time2wait + 4); 1302afaf5a2dSDavid Somayajulu } 1303afaf5a2dSDavid Somayajulu } 1304afaf5a2dSDavid Somayajulu } 1305afaf5a2dSDavid Somayajulu 1306f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 1307afaf5a2dSDavid Somayajulu /* Check for heartbeat interval. */ 1308afaf5a2dSDavid Somayajulu if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 1309afaf5a2dSDavid Somayajulu ha->heartbeat_interval != 0) { 1310afaf5a2dSDavid Somayajulu ha->seconds_since_last_heartbeat++; 1311afaf5a2dSDavid Somayajulu if (ha->seconds_since_last_heartbeat > 1312afaf5a2dSDavid Somayajulu ha->heartbeat_interval + 2) 1313afaf5a2dSDavid Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 1314afaf5a2dSDavid Somayajulu } 1315f4f5df23SVikas Chaudhary } 1316afaf5a2dSDavid Somayajulu 1317afaf5a2dSDavid Somayajulu /* Wakeup the dpc routine for this adapter, if needed. */ 13181b46807eSLalit Chandivade if (start_dpc || 1319afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1320afaf5a2dSDavid Somayajulu test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 1321afaf5a2dSDavid Somayajulu test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 1322f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 1323afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1324afaf5a2dSDavid Somayajulu test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 1325065aa1b4SVikas Chaudhary test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 1326f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1327f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 13281b46807eSLalit Chandivade test_bit(DPC_AEN, &ha->dpc_flags)) { 1329afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 1330afaf5a2dSDavid Somayajulu " - dpc flags = 0x%lx\n", 1331afaf5a2dSDavid Somayajulu ha->host_no, __func__, ha->dpc_flags)); 1332f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1333afaf5a2dSDavid Somayajulu } 1334afaf5a2dSDavid Somayajulu 1335afaf5a2dSDavid Somayajulu /* Reschedule timer thread to call us back in one second */ 1336afaf5a2dSDavid Somayajulu mod_timer(&ha->timer, jiffies + HZ); 1337afaf5a2dSDavid Somayajulu 1338afaf5a2dSDavid Somayajulu DEBUG2(ha->seconds_since_last_intr++); 1339afaf5a2dSDavid Somayajulu } 1340afaf5a2dSDavid Somayajulu 1341afaf5a2dSDavid Somayajulu /** 1342afaf5a2dSDavid Somayajulu * qla4xxx_cmd_wait - waits for all outstanding commands to complete 1343afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1344afaf5a2dSDavid Somayajulu * 1345afaf5a2dSDavid Somayajulu * This routine stalls the driver until all outstanding commands are returned. 1346afaf5a2dSDavid Somayajulu * Caller must release the Hardware Lock prior to calling this routine. 1347afaf5a2dSDavid Somayajulu **/ 1348afaf5a2dSDavid Somayajulu static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 1349afaf5a2dSDavid Somayajulu { 1350afaf5a2dSDavid Somayajulu uint32_t index = 0; 1351afaf5a2dSDavid Somayajulu unsigned long flags; 1352afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 1353afaf5a2dSDavid Somayajulu 1354f4f5df23SVikas Chaudhary unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 1355f4f5df23SVikas Chaudhary 1356f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 1357f4f5df23SVikas Chaudhary "complete\n", WAIT_CMD_TOV)); 1358f4f5df23SVikas Chaudhary 1359f4f5df23SVikas Chaudhary while (!time_after_eq(jiffies, wtime)) { 1360afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1361afaf5a2dSDavid Somayajulu /* Find a command that hasn't completed. */ 1362afaf5a2dSDavid Somayajulu for (index = 0; index < ha->host->can_queue; index++) { 1363afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, index); 1364a1e0063dSMike Christie /* 1365a1e0063dSMike Christie * We cannot just check if the index is valid, 1366a1e0063dSMike Christie * becase if we are run from the scsi eh, then 1367a1e0063dSMike Christie * the scsi/block layer is going to prevent 1368a1e0063dSMike Christie * the tag from being released. 1369a1e0063dSMike Christie */ 1370a1e0063dSMike Christie if (cmd != NULL && CMD_SP(cmd)) 1371afaf5a2dSDavid Somayajulu break; 1372afaf5a2dSDavid Somayajulu } 1373afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1374afaf5a2dSDavid Somayajulu 1375afaf5a2dSDavid Somayajulu /* If No Commands are pending, wait is complete */ 1376f4f5df23SVikas Chaudhary if (index == ha->host->can_queue) 1377f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1378afaf5a2dSDavid Somayajulu 1379afaf5a2dSDavid Somayajulu msleep(1000); 1380afaf5a2dSDavid Somayajulu } 1381f4f5df23SVikas Chaudhary /* If we timed out on waiting for commands to come back 1382f4f5df23SVikas Chaudhary * return ERROR. */ 1383f4f5df23SVikas Chaudhary return QLA_ERROR; 1384afaf5a2dSDavid Somayajulu } 1385afaf5a2dSDavid Somayajulu 1386f4f5df23SVikas Chaudhary int qla4xxx_hw_reset(struct scsi_qla_host *ha) 1387afaf5a2dSDavid Somayajulu { 1388afaf5a2dSDavid Somayajulu uint32_t ctrl_status; 1389477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1390477ffb9dSDavid C Somayajulu 1391477ffb9dSDavid C Somayajulu DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 1392afaf5a2dSDavid Somayajulu 1393f4f5df23SVikas Chaudhary if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 1394f4f5df23SVikas Chaudhary return QLA_ERROR; 1395f4f5df23SVikas Chaudhary 1396afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1397afaf5a2dSDavid Somayajulu 1398afaf5a2dSDavid Somayajulu /* 1399afaf5a2dSDavid Somayajulu * If the SCSI Reset Interrupt bit is set, clear it. 1400afaf5a2dSDavid Somayajulu * Otherwise, the Soft Reset won't work. 1401afaf5a2dSDavid Somayajulu */ 1402afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1403afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 1404afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1405afaf5a2dSDavid Somayajulu 1406afaf5a2dSDavid Somayajulu /* Issue Soft Reset */ 1407afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 1408afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1409afaf5a2dSDavid Somayajulu 1410afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1411f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1412477ffb9dSDavid C Somayajulu } 1413477ffb9dSDavid C Somayajulu 1414477ffb9dSDavid C Somayajulu /** 1415477ffb9dSDavid C Somayajulu * qla4xxx_soft_reset - performs soft reset. 1416477ffb9dSDavid C Somayajulu * @ha: Pointer to host adapter structure. 1417477ffb9dSDavid C Somayajulu **/ 1418477ffb9dSDavid C Somayajulu int qla4xxx_soft_reset(struct scsi_qla_host *ha) 1419477ffb9dSDavid C Somayajulu { 1420477ffb9dSDavid C Somayajulu uint32_t max_wait_time; 1421477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1422f931c534SVikas Chaudhary int status; 1423477ffb9dSDavid C Somayajulu uint32_t ctrl_status; 1424477ffb9dSDavid C Somayajulu 1425f931c534SVikas Chaudhary status = qla4xxx_hw_reset(ha); 1426f931c534SVikas Chaudhary if (status != QLA_SUCCESS) 1427f931c534SVikas Chaudhary return status; 1428afaf5a2dSDavid Somayajulu 1429f931c534SVikas Chaudhary status = QLA_ERROR; 1430afaf5a2dSDavid Somayajulu /* Wait until the Network Reset Intr bit is cleared */ 1431afaf5a2dSDavid Somayajulu max_wait_time = RESET_INTR_TOV; 1432afaf5a2dSDavid Somayajulu do { 1433afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1434afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1435afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1436afaf5a2dSDavid Somayajulu 1437afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 1438afaf5a2dSDavid Somayajulu break; 1439afaf5a2dSDavid Somayajulu 1440afaf5a2dSDavid Somayajulu msleep(1000); 1441afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1442afaf5a2dSDavid Somayajulu 1443afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 1444afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_WARNING 1445afaf5a2dSDavid Somayajulu "scsi%ld: Network Reset Intr not cleared by " 1446afaf5a2dSDavid Somayajulu "Network function, clearing it now!\n", 1447afaf5a2dSDavid Somayajulu ha->host_no)); 1448afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1449afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 1450afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1451afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1452afaf5a2dSDavid Somayajulu } 1453afaf5a2dSDavid Somayajulu 1454afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 1455afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 1456afaf5a2dSDavid Somayajulu do { 1457afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1458afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1459afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1460afaf5a2dSDavid Somayajulu 1461afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SOFT_RESET) == 0) { 1462afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 1463afaf5a2dSDavid Somayajulu break; 1464afaf5a2dSDavid Somayajulu } 1465afaf5a2dSDavid Somayajulu 1466afaf5a2dSDavid Somayajulu msleep(1000); 1467afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1468afaf5a2dSDavid Somayajulu 1469afaf5a2dSDavid Somayajulu /* 1470afaf5a2dSDavid Somayajulu * Also, make sure that the SCSI Reset Interrupt bit has been cleared 1471afaf5a2dSDavid Somayajulu * after the soft reset has taken place. 1472afaf5a2dSDavid Somayajulu */ 1473afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1474afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1475afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 1476afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1477afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1478afaf5a2dSDavid Somayajulu } 1479afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1480afaf5a2dSDavid Somayajulu 1481afaf5a2dSDavid Somayajulu /* If soft reset fails then most probably the bios on other 1482afaf5a2dSDavid Somayajulu * function is also enabled. 1483afaf5a2dSDavid Somayajulu * Since the initialization is sequential the other fn 1484afaf5a2dSDavid Somayajulu * wont be able to acknowledge the soft reset. 1485afaf5a2dSDavid Somayajulu * Issue a force soft reset to workaround this scenario. 1486afaf5a2dSDavid Somayajulu */ 1487afaf5a2dSDavid Somayajulu if (max_wait_time == 0) { 1488afaf5a2dSDavid Somayajulu /* Issue Force Soft Reset */ 1489afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1490afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 1491afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1492afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1493afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 1494afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 1495afaf5a2dSDavid Somayajulu do { 1496afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1497afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1498afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1499afaf5a2dSDavid Somayajulu 1500afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 1501afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 1502afaf5a2dSDavid Somayajulu break; 1503afaf5a2dSDavid Somayajulu } 1504afaf5a2dSDavid Somayajulu 1505afaf5a2dSDavid Somayajulu msleep(1000); 1506afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1507afaf5a2dSDavid Somayajulu } 1508afaf5a2dSDavid Somayajulu 1509afaf5a2dSDavid Somayajulu return status; 1510afaf5a2dSDavid Somayajulu } 1511afaf5a2dSDavid Somayajulu 1512afaf5a2dSDavid Somayajulu /** 1513f4f5df23SVikas Chaudhary * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 1514afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1515f4f5df23SVikas Chaudhary * @res: returned scsi status 1516afaf5a2dSDavid Somayajulu * 1517afaf5a2dSDavid Somayajulu * This routine is called just prior to a HARD RESET to return all 1518afaf5a2dSDavid Somayajulu * outstanding commands back to the Operating System. 1519afaf5a2dSDavid Somayajulu * Caller should make sure that the following locks are released 1520afaf5a2dSDavid Somayajulu * before this calling routine: Hardware lock, and io_request_lock. 1521afaf5a2dSDavid Somayajulu **/ 1522f4f5df23SVikas Chaudhary static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 1523afaf5a2dSDavid Somayajulu { 1524afaf5a2dSDavid Somayajulu struct srb *srb; 1525afaf5a2dSDavid Somayajulu int i; 1526afaf5a2dSDavid Somayajulu unsigned long flags; 1527afaf5a2dSDavid Somayajulu 1528afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1529afaf5a2dSDavid Somayajulu for (i = 0; i < ha->host->can_queue; i++) { 1530afaf5a2dSDavid Somayajulu srb = qla4xxx_del_from_active_array(ha, i); 1531afaf5a2dSDavid Somayajulu if (srb != NULL) { 1532f4f5df23SVikas Chaudhary srb->cmd->result = res; 153309a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 1534afaf5a2dSDavid Somayajulu } 1535afaf5a2dSDavid Somayajulu } 1536afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1537afaf5a2dSDavid Somayajulu } 1538afaf5a2dSDavid Somayajulu 1539f4f5df23SVikas Chaudhary void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 1540f4f5df23SVikas Chaudhary { 1541f4f5df23SVikas Chaudhary clear_bit(AF_ONLINE, &ha->flags); 1542f4f5df23SVikas Chaudhary 1543f4f5df23SVikas Chaudhary /* Disable the board */ 1544f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 1545f4f5df23SVikas Chaudhary 1546f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 1547f4f5df23SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 1548f4f5df23SVikas Chaudhary clear_bit(AF_INIT_DONE, &ha->flags); 1549f4f5df23SVikas Chaudhary } 1550f4f5df23SVikas Chaudhary 1551afaf5a2dSDavid Somayajulu /** 1552afaf5a2dSDavid Somayajulu * qla4xxx_recover_adapter - recovers adapter after a fatal error 1553afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1554afaf5a2dSDavid Somayajulu **/ 1555f4f5df23SVikas Chaudhary static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 1556afaf5a2dSDavid Somayajulu { 1557f4f5df23SVikas Chaudhary int status = QLA_ERROR; 1558f4f5df23SVikas Chaudhary uint8_t reset_chip = 0; 1559afaf5a2dSDavid Somayajulu 1560afaf5a2dSDavid Somayajulu /* Stall incoming I/O until we are done */ 1561f4f5df23SVikas Chaudhary scsi_block_requests(ha->host); 1562afaf5a2dSDavid Somayajulu clear_bit(AF_ONLINE, &ha->flags); 156350a29aecSMike Christie 1564f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 1565afaf5a2dSDavid Somayajulu 1566f4f5df23SVikas Chaudhary set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 1567afaf5a2dSDavid Somayajulu 1568f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 1569f4f5df23SVikas Chaudhary reset_chip = 1; 1570afaf5a2dSDavid Somayajulu 1571f4f5df23SVikas Chaudhary /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 1572f4f5df23SVikas Chaudhary * do not reset adapter, jump to initialize_adapter */ 1573f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 1574f4f5df23SVikas Chaudhary status = QLA_SUCCESS; 1575f4f5df23SVikas Chaudhary goto recover_ha_init_adapter; 1576afaf5a2dSDavid Somayajulu } 1577afaf5a2dSDavid Somayajulu 1578f4f5df23SVikas Chaudhary /* For the ISP-82xx adapter, issue a stop_firmware if invoked 1579f4f5df23SVikas Chaudhary * from eh_host_reset or ioctl module */ 1580f4f5df23SVikas Chaudhary if (is_qla8022(ha) && !reset_chip && 1581f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 1582f4f5df23SVikas Chaudhary 1583f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 1584f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing stop_firmware...\n", 1585f4f5df23SVikas Chaudhary ha->host_no, __func__)); 1586f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_firmware(ha); 1587f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 15882bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 1589f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 1590f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 1591f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 1592f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 1593f4f5df23SVikas Chaudhary } else { 1594f4f5df23SVikas Chaudhary /* If the stop_firmware fails then 1595f4f5df23SVikas Chaudhary * reset the entire chip */ 1596f4f5df23SVikas Chaudhary reset_chip = 1; 1597f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 1598f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1599f4f5df23SVikas Chaudhary } 1600f4f5df23SVikas Chaudhary } 1601f4f5df23SVikas Chaudhary 1602f4f5df23SVikas Chaudhary /* Issue full chip reset if recovering from a catastrophic error, 1603f4f5df23SVikas Chaudhary * or if stop_firmware fails for ISP-82xx. 1604f4f5df23SVikas Chaudhary * This is the default case for ISP-4xxx */ 1605f4f5df23SVikas Chaudhary if (!is_qla8022(ha) || reset_chip) { 16062bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 1607f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 1608f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 1609f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 1610f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 1611f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing chip reset..\n", 1612f4f5df23SVikas Chaudhary ha->host_no, __func__)); 1613f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_chip(ha); 1614f4f5df23SVikas Chaudhary } 1615f4f5df23SVikas Chaudhary 1616f4f5df23SVikas Chaudhary /* Flush any pending ddb changed AENs */ 1617f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 1618f4f5df23SVikas Chaudhary 1619f4f5df23SVikas Chaudhary recover_ha_init_adapter: 1620f4f5df23SVikas Chaudhary /* Upon successful firmware/chip reset, re-initialize the adapter */ 1621f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 1622f4f5df23SVikas Chaudhary /* For ISP-4xxx, force function 1 to always initialize 1623f4f5df23SVikas Chaudhary * before function 3 to prevent both funcions from 1624f4f5df23SVikas Chaudhary * stepping on top of the other */ 1625f4f5df23SVikas Chaudhary if (!is_qla8022(ha) && (ha->mac_index == 3)) 1626f4f5df23SVikas Chaudhary ssleep(6); 1627f4f5df23SVikas Chaudhary 1628f4f5df23SVikas Chaudhary /* NOTE: AF_ONLINE flag set upon successful completion of 1629f4f5df23SVikas Chaudhary * qla4xxx_initialize_adapter */ 1630f4f5df23SVikas Chaudhary status = qla4xxx_initialize_adapter(ha, PRESERVE_DDB_LIST); 1631f4f5df23SVikas Chaudhary } 1632f4f5df23SVikas Chaudhary 1633f4f5df23SVikas Chaudhary /* Retry failed adapter initialization, if necessary 1634f4f5df23SVikas Chaudhary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 1635f4f5df23SVikas Chaudhary * case to prevent ping-pong resets between functions */ 1636f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags) && 1637f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 1638afaf5a2dSDavid Somayajulu /* Adapter initialization failed, see if we can retry 1639f4f5df23SVikas Chaudhary * resetting the ha. 1640f4f5df23SVikas Chaudhary * Since we don't want to block the DPC for too long 1641f4f5df23SVikas Chaudhary * with multiple resets in the same thread, 1642f4f5df23SVikas Chaudhary * utilize DPC to retry */ 1643afaf5a2dSDavid Somayajulu if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 1644afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 1645afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - retrying " 1646afaf5a2dSDavid Somayajulu "(%d) more times\n", ha->host_no, 1647afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 1648afaf5a2dSDavid Somayajulu set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 1649afaf5a2dSDavid Somayajulu status = QLA_ERROR; 1650afaf5a2dSDavid Somayajulu } else { 1651afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt > 0) { 1652afaf5a2dSDavid Somayajulu /* Schedule another Reset HA--DPC will retry */ 1653afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt--; 1654afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - " 1655afaf5a2dSDavid Somayajulu "retry remaining %d\n", 1656afaf5a2dSDavid Somayajulu ha->host_no, 1657afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 1658afaf5a2dSDavid Somayajulu status = QLA_ERROR; 1659afaf5a2dSDavid Somayajulu } 1660afaf5a2dSDavid Somayajulu 1661afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt == 0) { 1662afaf5a2dSDavid Somayajulu /* Recover adapter retries have been exhausted. 1663afaf5a2dSDavid Somayajulu * Adapter DEAD */ 1664afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter " 1665afaf5a2dSDavid Somayajulu "failed - board disabled\n", 1666afaf5a2dSDavid Somayajulu ha->host_no)); 1667f4f5df23SVikas Chaudhary qla4xxx_dead_adapter_cleanup(ha); 1668afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 1669afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 1670f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, 1671afaf5a2dSDavid Somayajulu &ha->dpc_flags); 1672afaf5a2dSDavid Somayajulu status = QLA_ERROR; 1673afaf5a2dSDavid Somayajulu } 1674afaf5a2dSDavid Somayajulu } 1675afaf5a2dSDavid Somayajulu } else { 1676afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 1677f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 1678afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 1679afaf5a2dSDavid Somayajulu } 1680afaf5a2dSDavid Somayajulu 1681afaf5a2dSDavid Somayajulu ha->adapter_error_count++; 1682afaf5a2dSDavid Somayajulu 1683f4f5df23SVikas Chaudhary if (test_bit(AF_ONLINE, &ha->flags)) 1684f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 1685afaf5a2dSDavid Somayajulu 1686f4f5df23SVikas Chaudhary scsi_unblock_requests(ha->host); 1687f4f5df23SVikas Chaudhary 1688f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 1689f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 169025985edcSLucas De Marchi status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 1691f4f5df23SVikas Chaudhary 1692afaf5a2dSDavid Somayajulu return status; 1693afaf5a2dSDavid Somayajulu } 1694afaf5a2dSDavid Somayajulu 16952d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 16962d7924e6SVikas Chaudhary { 16972d7924e6SVikas Chaudhary struct ddb_entry *ddb_entry, *dtemp; 16982d7924e6SVikas Chaudhary 16992d7924e6SVikas Chaudhary list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) { 17002d7924e6SVikas Chaudhary if ((atomic_read(&ddb_entry->state) == DDB_STATE_MISSING) || 17012d7924e6SVikas Chaudhary (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD)) { 17022d7924e6SVikas Chaudhary if (ddb_entry->fw_ddb_device_state == 17032d7924e6SVikas Chaudhary DDB_DS_SESSION_ACTIVE) { 17042d7924e6SVikas Chaudhary atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); 17052d7924e6SVikas Chaudhary ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 17062d7924e6SVikas Chaudhary " marked ONLINE\n", ha->host_no, __func__, 17072d7924e6SVikas Chaudhary ddb_entry->fw_ddb_index); 17082d7924e6SVikas Chaudhary 17092d7924e6SVikas Chaudhary iscsi_unblock_session(ddb_entry->sess); 17102d7924e6SVikas Chaudhary } else 17112d7924e6SVikas Chaudhary qla4xxx_relogin_device(ha, ddb_entry); 17122d7924e6SVikas Chaudhary } 17132d7924e6SVikas Chaudhary } 17142d7924e6SVikas Chaudhary } 17152d7924e6SVikas Chaudhary 1716f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 1717f4f5df23SVikas Chaudhary { 17181b46807eSLalit Chandivade if (ha->dpc_thread) 1719f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 1720f4f5df23SVikas Chaudhary } 1721f4f5df23SVikas Chaudhary 1722afaf5a2dSDavid Somayajulu /** 1723afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 1724afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 1725afaf5a2dSDavid Somayajulu * 1726afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 1727afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 1728afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 1729afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 1730afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 1731afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 1732afaf5a2dSDavid Somayajulu **/ 1733c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 1734afaf5a2dSDavid Somayajulu { 1735c4028958SDavid Howells struct scsi_qla_host *ha = 1736c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 1737afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, *dtemp; 1738477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 1739afaf5a2dSDavid Somayajulu 1740f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 1741f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 1742f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 1743afaf5a2dSDavid Somayajulu 1744afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 1745afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 17461b46807eSLalit Chandivade return; 1747afaf5a2dSDavid Somayajulu 17482232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 17492232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 17502232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 17511b46807eSLalit Chandivade return; 17522232be0dSLalit Chandivade } 17532232be0dSLalit Chandivade 1754f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1755f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 1756f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 1757f4f5df23SVikas Chaudhary qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 1758f4f5df23SVikas Chaudhary QLA82XX_DEV_FAILED); 1759f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 1760f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 1761f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 1762f4f5df23SVikas Chaudhary } 1763f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 1764f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 1765f4f5df23SVikas Chaudhary } 1766f4f5df23SVikas Chaudhary } 1767f4f5df23SVikas Chaudhary 1768f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 1769f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1770afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1771f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 1772f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 1773f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 1774f4f5df23SVikas Chaudhary ha->host_no, __func__)); 1775f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 1776f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 1777f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 1778f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 1779f4f5df23SVikas Chaudhary } 1780f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 1781f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 1782f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 1783afaf5a2dSDavid Somayajulu 1784477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 1785afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 1786afaf5a2dSDavid Somayajulu 1787afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 1788afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 1789afaf5a2dSDavid Somayajulu if (--wait_time == 0) 1790afaf5a2dSDavid Somayajulu break; 1791afaf5a2dSDavid Somayajulu msleep(1000); 1792afaf5a2dSDavid Somayajulu } 1793afaf5a2dSDavid Somayajulu if (wait_time == 0) 1794afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 1795afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 1796afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 1797f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 1798477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 1799477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 1800f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 1801477ffb9dSDavid C Somayajulu } 1802477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 1803477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 1804f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 1805afaf5a2dSDavid Somayajulu } 1806afaf5a2dSDavid Somayajulu } 1807afaf5a2dSDavid Somayajulu 1808f4f5df23SVikas Chaudhary dpc_post_reset_ha: 1809afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 1810afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 1811afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 1812afaf5a2dSDavid Somayajulu 1813afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 1814afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 1815afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 1816afaf5a2dSDavid Somayajulu 1817065aa1b4SVikas Chaudhary /* ---- link change? --- */ 1818065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 1819065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 1820065aa1b4SVikas Chaudhary /* ---- link down? --- */ 18212d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 1822065aa1b4SVikas Chaudhary } else { 1823065aa1b4SVikas Chaudhary /* ---- link up? --- * 1824065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 1825065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 1826065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 1827065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 1828065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 1829065aa1b4SVikas Chaudhary 18302d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 1831065aa1b4SVikas Chaudhary } 1832065aa1b4SVikas Chaudhary } 1833065aa1b4SVikas Chaudhary 1834afaf5a2dSDavid Somayajulu /* ---- relogin device? --- */ 1835afaf5a2dSDavid Somayajulu if (adapter_up(ha) && 1836afaf5a2dSDavid Somayajulu test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 1837afaf5a2dSDavid Somayajulu list_for_each_entry_safe(ddb_entry, dtemp, 1838afaf5a2dSDavid Somayajulu &ha->ddb_list, list) { 1839afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 1840afaf5a2dSDavid Somayajulu atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) 1841afaf5a2dSDavid Somayajulu qla4xxx_relogin_device(ha, ddb_entry); 1842afaf5a2dSDavid Somayajulu 1843afaf5a2dSDavid Somayajulu /* 1844afaf5a2dSDavid Somayajulu * If mbx cmd times out there is no point 1845afaf5a2dSDavid Somayajulu * in continuing further. 1846afaf5a2dSDavid Somayajulu * With large no of targets this can hang 1847afaf5a2dSDavid Somayajulu * the system. 1848afaf5a2dSDavid Somayajulu */ 1849afaf5a2dSDavid Somayajulu if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 1850afaf5a2dSDavid Somayajulu printk(KERN_WARNING "scsi%ld: %s: " 1851afaf5a2dSDavid Somayajulu "need to reset hba\n", 1852afaf5a2dSDavid Somayajulu ha->host_no, __func__); 1853afaf5a2dSDavid Somayajulu break; 1854afaf5a2dSDavid Somayajulu } 1855afaf5a2dSDavid Somayajulu } 1856afaf5a2dSDavid Somayajulu } 18570753b487SVikas Chaudhary 1858afaf5a2dSDavid Somayajulu } 1859afaf5a2dSDavid Somayajulu 1860afaf5a2dSDavid Somayajulu /** 1861afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 1862afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 1863afaf5a2dSDavid Somayajulu **/ 1864afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 1865afaf5a2dSDavid Somayajulu { 1866afaf5a2dSDavid Somayajulu 1867afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 1868afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 1869f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 1870afaf5a2dSDavid Somayajulu } 1871afaf5a2dSDavid Somayajulu 1872afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 1873afaf5a2dSDavid Somayajulu if (ha->timer_active) 1874afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 1875afaf5a2dSDavid Somayajulu 1876f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 1877f4f5df23SVikas Chaudhary if (ha->dpc_thread) 1878f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 1879f4f5df23SVikas Chaudhary 1880f4f5df23SVikas Chaudhary /* Put firmware in known state */ 1881f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 1882f4f5df23SVikas Chaudhary 1883f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1884f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 1885f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 1886f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 1887f4f5df23SVikas Chaudhary } 1888f4f5df23SVikas Chaudhary 1889afaf5a2dSDavid Somayajulu /* Detach interrupts */ 1890afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 1891f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 1892afaf5a2dSDavid Somayajulu 1893bee4fe8eSDavid C Somayajulu /* free extra memory */ 1894bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 1895f4f5df23SVikas Chaudhary } 1896bee4fe8eSDavid C Somayajulu 1897f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 1898f4f5df23SVikas Chaudhary { 1899f4f5df23SVikas Chaudhary int status = 0; 1900f4f5df23SVikas Chaudhary uint8_t revision_id; 1901f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 1902f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 1903afaf5a2dSDavid Somayajulu 1904f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 1905f4f5df23SVikas Chaudhary if (status) { 1906f4f5df23SVikas Chaudhary printk(KERN_WARNING 1907f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 1908f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 1909f4f5df23SVikas Chaudhary goto iospace_error_exit; 1910f4f5df23SVikas Chaudhary } 1911f4f5df23SVikas Chaudhary 1912f4f5df23SVikas Chaudhary pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id); 1913f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 1914f4f5df23SVikas Chaudhary __func__, revision_id)); 1915f4f5df23SVikas Chaudhary ha->revision_id = revision_id; 1916f4f5df23SVikas Chaudhary 1917f4f5df23SVikas Chaudhary /* remap phys address */ 1918f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 1919f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 1920f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 1921f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 1922f4f5df23SVikas Chaudhary 1923f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 1924f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 1925f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 1926f4f5df23SVikas Chaudhary printk(KERN_ERR 1927f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 1928f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 1929f4f5df23SVikas Chaudhary goto iospace_error_exit; 1930f4f5df23SVikas Chaudhary } 1931f4f5df23SVikas Chaudhary 1932f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 1933f4f5df23SVikas Chaudhary 1934f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 1935f4f5df23SVikas Chaudhary ha->qla4_8xxx_reg = 1936f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 1937f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 1938f4f5df23SVikas Chaudhary 1939f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 1940f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 1941f4f5df23SVikas Chaudhary 19422657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 19432657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 1944f4f5df23SVikas Chaudhary 19452657c800SShyam Sundar return 0; 1946f4f5df23SVikas Chaudhary iospace_error_exit: 1947f4f5df23SVikas Chaudhary return -ENOMEM; 1948afaf5a2dSDavid Somayajulu } 1949afaf5a2dSDavid Somayajulu 1950afaf5a2dSDavid Somayajulu /*** 1951afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 1952afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 1953afaf5a2dSDavid Somayajulu * 1954afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 1955afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 1956afaf5a2dSDavid Somayajulu **/ 1957f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 1958afaf5a2dSDavid Somayajulu { 1959afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 1960afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 1961afaf5a2dSDavid Somayajulu 1962afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 1963afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 1964afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 1965afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 1966afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 1967c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1968afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 1969afaf5a2dSDavid Somayajulu pio = 0; 1970afaf5a2dSDavid Somayajulu } 1971afaf5a2dSDavid Somayajulu } else { 1972c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 1973afaf5a2dSDavid Somayajulu pio = 0; 1974afaf5a2dSDavid Somayajulu } 1975afaf5a2dSDavid Somayajulu 1976afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 1977afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 1978afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 1979afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 1980afaf5a2dSDavid Somayajulu 1981afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 1982c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 1983afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 1984afaf5a2dSDavid Somayajulu 1985afaf5a2dSDavid Somayajulu goto iospace_error_exit; 1986afaf5a2dSDavid Somayajulu } 1987c2660df3SVikas Chaudhary 1988afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 1989c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 1990afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 1991afaf5a2dSDavid Somayajulu goto iospace_error_exit; 1992afaf5a2dSDavid Somayajulu } 1993afaf5a2dSDavid Somayajulu 1994afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 1995c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1996afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 1997afaf5a2dSDavid Somayajulu 1998afaf5a2dSDavid Somayajulu goto iospace_error_exit; 1999afaf5a2dSDavid Somayajulu } 2000afaf5a2dSDavid Somayajulu 2001afaf5a2dSDavid Somayajulu ha->pio_address = pio; 2002afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 2003afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 2004afaf5a2dSDavid Somayajulu if (!ha->reg) { 2005c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2006afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 2007afaf5a2dSDavid Somayajulu 2008afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2009afaf5a2dSDavid Somayajulu } 2010afaf5a2dSDavid Somayajulu 2011afaf5a2dSDavid Somayajulu return 0; 2012afaf5a2dSDavid Somayajulu 2013afaf5a2dSDavid Somayajulu iospace_error_exit: 2014afaf5a2dSDavid Somayajulu return -ENOMEM; 2015afaf5a2dSDavid Somayajulu } 2016afaf5a2dSDavid Somayajulu 2017f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 2018f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 2019f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 2020f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 2021f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 2022f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 2023f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 2024f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 2025f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 2026f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 2027f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 2028f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 2029f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 2030f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 2031f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 2032f4f5df23SVikas Chaudhary }; 2033f4f5df23SVikas Chaudhary 2034f4f5df23SVikas Chaudhary static struct isp_operations qla4_8xxx_isp_ops = { 2035f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 2036f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 2037f4f5df23SVikas Chaudhary .disable_intrs = qla4_8xxx_disable_intrs, 2038f4f5df23SVikas Chaudhary .enable_intrs = qla4_8xxx_enable_intrs, 2039f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 2040f4f5df23SVikas Chaudhary .intr_handler = qla4_8xxx_intr_handler, 2041f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4_8xxx_interrupt_service_routine, 2042f4f5df23SVikas Chaudhary .reset_chip = qla4_8xxx_isp_reset, 2043f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 2044f4f5df23SVikas Chaudhary .queue_iocb = qla4_8xxx_queue_iocb, 2045f4f5df23SVikas Chaudhary .complete_iocb = qla4_8xxx_complete_iocb, 2046f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out, 2047f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in, 2048f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 2049f4f5df23SVikas Chaudhary }; 2050f4f5df23SVikas Chaudhary 2051f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2052f4f5df23SVikas Chaudhary { 2053f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 2054f4f5df23SVikas Chaudhary } 2055f4f5df23SVikas Chaudhary 2056f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2057f4f5df23SVikas Chaudhary { 2058f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out)); 2059f4f5df23SVikas Chaudhary } 2060f4f5df23SVikas Chaudhary 2061f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2062f4f5df23SVikas Chaudhary { 2063f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 2064f4f5df23SVikas Chaudhary } 2065f4f5df23SVikas Chaudhary 2066f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2067f4f5df23SVikas Chaudhary { 2068f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in)); 2069f4f5df23SVikas Chaudhary } 2070f4f5df23SVikas Chaudhary 2071afaf5a2dSDavid Somayajulu /** 2072afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 2073afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 2074afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 2075afaf5a2dSDavid Somayajulu * 2076afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 2077afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 2078afaf5a2dSDavid Somayajulu * the driver. 2079afaf5a2dSDavid Somayajulu **/ 2080afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 2081afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 2082afaf5a2dSDavid Somayajulu { 2083afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 2084afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 2085afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 2086afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 2087afaf5a2dSDavid Somayajulu char buf[34]; 2088f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 2089f9880e76SPrasanna Mumbai uint32_t dev_state; 2090afaf5a2dSDavid Somayajulu 2091afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 2092afaf5a2dSDavid Somayajulu return -1; 2093afaf5a2dSDavid Somayajulu 2094afaf5a2dSDavid Somayajulu host = scsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha)); 2095afaf5a2dSDavid Somayajulu if (host == NULL) { 2096afaf5a2dSDavid Somayajulu printk(KERN_WARNING 2097afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 2098afaf5a2dSDavid Somayajulu goto probe_disable_device; 2099afaf5a2dSDavid Somayajulu } 2100afaf5a2dSDavid Somayajulu 2101afaf5a2dSDavid Somayajulu /* Clear our data area */ 2102afaf5a2dSDavid Somayajulu ha = (struct scsi_qla_host *) host->hostdata; 2103afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 2104afaf5a2dSDavid Somayajulu 2105afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 2106afaf5a2dSDavid Somayajulu ha->pdev = pdev; 2107afaf5a2dSDavid Somayajulu ha->host = host; 2108afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 2109afaf5a2dSDavid Somayajulu 21102232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 21112232be0dSLalit Chandivade 2112f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 2113f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2114f4f5df23SVikas Chaudhary ha->isp_ops = &qla4_8xxx_isp_ops; 2115f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 2116f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 2117f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 2118f4f5df23SVikas Chaudhary ha->curr_window = 255; 2119f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 2120f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 2121f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 2122f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 2123f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 2124f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 2125f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 2126f4f5df23SVikas Chaudhary } else { 2127f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 2128f4f5df23SVikas Chaudhary } 2129f4f5df23SVikas Chaudhary 21302232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 21312232be0dSLalit Chandivade if (is_qla8022(ha)) 21322232be0dSLalit Chandivade pdev->needs_freset = 1; 21332232be0dSLalit Chandivade 2134afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 2135f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 2136afaf5a2dSDavid Somayajulu if (ret) 2137f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 2138afaf5a2dSDavid Somayajulu 2139c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 2140afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 2141afaf5a2dSDavid Somayajulu 2142afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 2143afaf5a2dSDavid Somayajulu 2144afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 2145afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->ddb_list); 2146afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 2147afaf5a2dSDavid Somayajulu 2148afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 2149f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 2150afaf5a2dSDavid Somayajulu 2151afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 2152afaf5a2dSDavid Somayajulu 2153afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 2154afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 2155c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2156afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 2157afaf5a2dSDavid Somayajulu 2158afaf5a2dSDavid Somayajulu ret = -ENOMEM; 2159afaf5a2dSDavid Somayajulu goto probe_failed; 2160afaf5a2dSDavid Somayajulu } 2161afaf5a2dSDavid Somayajulu 2162f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 2163f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 2164f4f5df23SVikas Chaudhary 2165afaf5a2dSDavid Somayajulu /* 2166afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 2167afaf5a2dSDavid Somayajulu * firmware 2168afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 2169afaf5a2dSDavid Somayajulu */ 2170afaf5a2dSDavid Somayajulu status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST); 2171f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 2172f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 2173f9880e76SPrasanna Mumbai 2174f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 2175f9880e76SPrasanna Mumbai qla4_8xxx_idc_lock(ha); 2176f9880e76SPrasanna Mumbai dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 2177f9880e76SPrasanna Mumbai qla4_8xxx_idc_unlock(ha); 2178f9880e76SPrasanna Mumbai if (dev_state == QLA82XX_DEV_FAILED) { 2179f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 2180f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 2181f9880e76SPrasanna Mumbai __func__); 2182f9880e76SPrasanna Mumbai break; 2183f9880e76SPrasanna Mumbai } 2184f9880e76SPrasanna Mumbai } 2185afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 2186afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 2187f4f5df23SVikas Chaudhary 2188f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 2189f4f5df23SVikas Chaudhary continue; 2190f4f5df23SVikas Chaudhary 2191afaf5a2dSDavid Somayajulu status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST); 2192afaf5a2dSDavid Somayajulu } 2193f4f5df23SVikas Chaudhary 2194f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 2195c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 2196afaf5a2dSDavid Somayajulu 2197fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 2198fe998527SLalit Chandivade /* Put the device in failed state. */ 2199fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 2200fe998527SLalit Chandivade qla4_8xxx_idc_lock(ha); 2201fe998527SLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 2202fe998527SLalit Chandivade QLA82XX_DEV_FAILED); 2203fe998527SLalit Chandivade qla4_8xxx_idc_unlock(ha); 2204fe998527SLalit Chandivade } 2205afaf5a2dSDavid Somayajulu ret = -ENODEV; 2206afaf5a2dSDavid Somayajulu goto probe_failed; 2207afaf5a2dSDavid Somayajulu } 2208afaf5a2dSDavid Somayajulu 2209afaf5a2dSDavid Somayajulu host->cmd_per_lun = 3; 2210afaf5a2dSDavid Somayajulu host->max_channel = 0; 2211afaf5a2dSDavid Somayajulu host->max_lun = MAX_LUNS - 1; 2212afaf5a2dSDavid Somayajulu host->max_id = MAX_TARGETS; 2213afaf5a2dSDavid Somayajulu host->max_cmd_len = IOCB_MAX_CDB_LEN; 2214afaf5a2dSDavid Somayajulu host->can_queue = MAX_SRBS ; 2215afaf5a2dSDavid Somayajulu host->transportt = qla4xxx_scsi_transport; 2216afaf5a2dSDavid Somayajulu 2217afaf5a2dSDavid Somayajulu ret = scsi_init_shared_tag_map(host, MAX_SRBS); 2218afaf5a2dSDavid Somayajulu if (ret) { 2219c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2220c2660df3SVikas Chaudhary "scsi_init_shared_tag_map failed\n"); 2221afaf5a2dSDavid Somayajulu goto probe_failed; 2222afaf5a2dSDavid Somayajulu } 2223afaf5a2dSDavid Somayajulu 2224afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 2225afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 2226afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 2227afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 2228afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 2229afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 2230c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 2231afaf5a2dSDavid Somayajulu ret = -ENODEV; 2232afaf5a2dSDavid Somayajulu goto probe_failed; 2233afaf5a2dSDavid Somayajulu } 2234c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 2235afaf5a2dSDavid Somayajulu 2236f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 2237f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 2238f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 2239f4f5df23SVikas Chaudhary * mbx_intr_enable. 2240f4f5df23SVikas Chaudhary */ 2241f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 2242f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 2243afaf5a2dSDavid Somayajulu if (ret) { 2244f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 2245f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 2246afaf5a2dSDavid Somayajulu goto probe_failed; 2247afaf5a2dSDavid Somayajulu } 2248f4f5df23SVikas Chaudhary } 2249afaf5a2dSDavid Somayajulu 22502232be0dSLalit Chandivade pci_save_state(ha->pdev); 2251f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2252afaf5a2dSDavid Somayajulu 2253afaf5a2dSDavid Somayajulu /* Start timer thread. */ 2254afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 2255afaf5a2dSDavid Somayajulu 2256afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 2257afaf5a2dSDavid Somayajulu 2258afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, ha); 2259afaf5a2dSDavid Somayajulu 2260afaf5a2dSDavid Somayajulu ret = scsi_add_host(host, &pdev->dev); 2261afaf5a2dSDavid Somayajulu if (ret) 2262afaf5a2dSDavid Somayajulu goto probe_failed; 2263afaf5a2dSDavid Somayajulu 2264afaf5a2dSDavid Somayajulu printk(KERN_INFO 2265afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 2266afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 2267afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 2268afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 2269afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 2270921601b7SMike Christie scsi_scan_host(host); 2271ed1086e0SVikas Chaudhary 2272ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 2273afaf5a2dSDavid Somayajulu return 0; 2274afaf5a2dSDavid Somayajulu 2275afaf5a2dSDavid Somayajulu probe_failed: 2276afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 2277f4f5df23SVikas Chaudhary 2278f4f5df23SVikas Chaudhary probe_failed_ioconfig: 22792232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 2280afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 2281afaf5a2dSDavid Somayajulu 2282afaf5a2dSDavid Somayajulu probe_disable_device: 2283afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 2284afaf5a2dSDavid Somayajulu 2285afaf5a2dSDavid Somayajulu return ret; 2286afaf5a2dSDavid Somayajulu } 2287afaf5a2dSDavid Somayajulu 2288afaf5a2dSDavid Somayajulu /** 22897eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 22907eece5a0SKaren Higgins * @ha: pointer to adapter structure 22917eece5a0SKaren Higgins * 22927eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 22937eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 22947eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 22957eece5a0SKaren Higgins **/ 22967eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 22977eece5a0SKaren Higgins { 22987eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 22997eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 23007eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 23017eece5a0SKaren Higgins 23027eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 23037eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 23047eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 23057eece5a0SKaren Higgins 23067eece5a0SKaren Higgins other_pdev = 23077eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 23087eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 23097eece5a0SKaren Higgins fn)); 23107eece5a0SKaren Higgins 23117eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 23127eece5a0SKaren Higgins if (other_pdev) { 23137eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 23147eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 23157eece5a0SKaren Higgins if (other_ha) { 23167eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 23177eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 23187eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 23197eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 23207eece5a0SKaren Higgins } 23217eece5a0SKaren Higgins } 23227eece5a0SKaren Higgins pci_dev_put(other_pdev); 23237eece5a0SKaren Higgins } 23247eece5a0SKaren Higgins } 23257eece5a0SKaren Higgins 23267eece5a0SKaren Higgins /** 2327afaf5a2dSDavid Somayajulu * qla4xxx_remove_adapter - calback function to remove adapter. 2328afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 2329afaf5a2dSDavid Somayajulu **/ 2330afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 2331afaf5a2dSDavid Somayajulu { 2332afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 2333afaf5a2dSDavid Somayajulu 2334afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 2335afaf5a2dSDavid Somayajulu 23367eece5a0SKaren Higgins if (!is_qla8022(ha)) 23377eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 2338bee4fe8eSDavid C Somayajulu 2339afaf5a2dSDavid Somayajulu /* remove devs from iscsi_sessions to scsi_devices */ 2340afaf5a2dSDavid Somayajulu qla4xxx_free_ddb_list(ha); 2341afaf5a2dSDavid Somayajulu 2342ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 2343ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 2344ed1086e0SVikas Chaudhary 2345afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 2346afaf5a2dSDavid Somayajulu 2347afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 2348afaf5a2dSDavid Somayajulu 2349afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 2350afaf5a2dSDavid Somayajulu 23512232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 2352f4f5df23SVikas Chaudhary pci_disable_device(pdev); 2353afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 2354afaf5a2dSDavid Somayajulu } 2355afaf5a2dSDavid Somayajulu 2356afaf5a2dSDavid Somayajulu /** 2357afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 2358afaf5a2dSDavid Somayajulu * @ha: HA context 2359afaf5a2dSDavid Somayajulu * 2360afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 2361afaf5a2dSDavid Somayajulu * supported addressing method. 2362afaf5a2dSDavid Somayajulu */ 236347975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 2364afaf5a2dSDavid Somayajulu { 2365afaf5a2dSDavid Somayajulu int retval; 2366afaf5a2dSDavid Somayajulu 2367afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 23686a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 23696a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 2370afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 2371afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 2372afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 2373afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 2374284901a9SYang Hongyang DMA_BIT_MASK(32)); 2375afaf5a2dSDavid Somayajulu } 2376afaf5a2dSDavid Somayajulu } else 2377284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 2378afaf5a2dSDavid Somayajulu } 2379afaf5a2dSDavid Somayajulu 2380afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 2381afaf5a2dSDavid Somayajulu { 2382afaf5a2dSDavid Somayajulu struct iscsi_cls_session *sess = starget_to_session(sdev->sdev_target); 2383afaf5a2dSDavid Somayajulu struct ddb_entry *ddb = sess->dd_data; 23848bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 2385afaf5a2dSDavid Somayajulu 2386afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 2387afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 23888bb4033dSVikas Chaudhary 23898bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 23908bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 23918bb4033dSVikas Chaudhary 23928bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 2393afaf5a2dSDavid Somayajulu return 0; 2394afaf5a2dSDavid Somayajulu } 2395afaf5a2dSDavid Somayajulu 2396afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 2397afaf5a2dSDavid Somayajulu { 2398afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 2399afaf5a2dSDavid Somayajulu return 0; 2400afaf5a2dSDavid Somayajulu } 2401afaf5a2dSDavid Somayajulu 2402afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 2403afaf5a2dSDavid Somayajulu { 2404afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 2405afaf5a2dSDavid Somayajulu } 2406afaf5a2dSDavid Somayajulu 2407afaf5a2dSDavid Somayajulu /** 2408afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 2409afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2410fd589a8fSAnand Gadiyar * @index: index into the active_array 2411afaf5a2dSDavid Somayajulu * 2412afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 2413afaf5a2dSDavid Somayajulu **/ 2414f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 2415f4f5df23SVikas Chaudhary uint32_t index) 2416afaf5a2dSDavid Somayajulu { 2417afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 24185369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 2419afaf5a2dSDavid Somayajulu 24205369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 24215369887aSVikas Chaudhary if (!cmd) 2422afaf5a2dSDavid Somayajulu return srb; 2423afaf5a2dSDavid Somayajulu 24245369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 24255369887aSVikas Chaudhary if (!srb) 2426afaf5a2dSDavid Somayajulu return srb; 2427afaf5a2dSDavid Somayajulu 2428afaf5a2dSDavid Somayajulu /* update counters */ 2429afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 2430afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 2431afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 2432afaf5a2dSDavid Somayajulu if (srb->cmd) 24335369887aSVikas Chaudhary srb->cmd->host_scribble = 24345369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 2435afaf5a2dSDavid Somayajulu } 2436afaf5a2dSDavid Somayajulu return srb; 2437afaf5a2dSDavid Somayajulu } 2438afaf5a2dSDavid Somayajulu 2439afaf5a2dSDavid Somayajulu /** 2440afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 244109a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 2442afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 2443afaf5a2dSDavid Somayajulu * 2444afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 2445afaf5a2dSDavid Somayajulu * for some max time. 2446afaf5a2dSDavid Somayajulu **/ 2447afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 2448afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 2449afaf5a2dSDavid Somayajulu { 2450afaf5a2dSDavid Somayajulu int done = 0; 2451afaf5a2dSDavid Somayajulu struct srb *rp; 2452afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 24532232be0dSLalit Chandivade int ret = SUCCESS; 24542232be0dSLalit Chandivade 24552232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 24562232be0dSLalit Chandivade * by PCI AER driver 24572232be0dSLalit Chandivade */ 24582232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 24592232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 24602232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 24612232be0dSLalit Chandivade ha->host_no, __func__); 24622232be0dSLalit Chandivade return ret; 24632232be0dSLalit Chandivade } 2464afaf5a2dSDavid Somayajulu 2465afaf5a2dSDavid Somayajulu do { 2466afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 24675369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 2468afaf5a2dSDavid Somayajulu if (rp == NULL) { 2469afaf5a2dSDavid Somayajulu done++; 2470afaf5a2dSDavid Somayajulu break; 2471afaf5a2dSDavid Somayajulu } 2472afaf5a2dSDavid Somayajulu 2473afaf5a2dSDavid Somayajulu msleep(2000); 2474afaf5a2dSDavid Somayajulu } while (max_wait_time--); 2475afaf5a2dSDavid Somayajulu 2476afaf5a2dSDavid Somayajulu return done; 2477afaf5a2dSDavid Somayajulu } 2478afaf5a2dSDavid Somayajulu 2479afaf5a2dSDavid Somayajulu /** 2480afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 2481afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 2482afaf5a2dSDavid Somayajulu **/ 2483afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 2484afaf5a2dSDavid Somayajulu { 2485afaf5a2dSDavid Somayajulu unsigned long wait_online; 2486afaf5a2dSDavid Somayajulu 2487f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 2488afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 2489afaf5a2dSDavid Somayajulu 2490afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 2491afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 2492afaf5a2dSDavid Somayajulu 2493afaf5a2dSDavid Somayajulu msleep(2000); 2494afaf5a2dSDavid Somayajulu } 2495afaf5a2dSDavid Somayajulu 2496afaf5a2dSDavid Somayajulu return QLA_ERROR; 2497afaf5a2dSDavid Somayajulu } 2498afaf5a2dSDavid Somayajulu 2499afaf5a2dSDavid Somayajulu /** 2500ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 2501fd589a8fSAnand Gadiyar * @ha: pointer to HBA 2502afaf5a2dSDavid Somayajulu * @t: target id 2503afaf5a2dSDavid Somayajulu * @l: lun id 2504afaf5a2dSDavid Somayajulu * 2505afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 2506afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 2507afaf5a2dSDavid Somayajulu **/ 2508ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 2509ce545039SMike Christie struct scsi_target *stgt, 2510ce545039SMike Christie struct scsi_device *sdev) 2511afaf5a2dSDavid Somayajulu { 2512afaf5a2dSDavid Somayajulu int cnt; 2513afaf5a2dSDavid Somayajulu int status = 0; 2514afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 2515afaf5a2dSDavid Somayajulu 2516afaf5a2dSDavid Somayajulu /* 2517ce545039SMike Christie * Waiting for all commands for the designated target or dev 2518ce545039SMike Christie * in the active array 2519afaf5a2dSDavid Somayajulu */ 2520afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 2521afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 2522ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 2523ce545039SMike Christie (!sdev || sdev == cmd->device)) { 2524afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 2525afaf5a2dSDavid Somayajulu status++; 2526afaf5a2dSDavid Somayajulu break; 2527afaf5a2dSDavid Somayajulu } 2528afaf5a2dSDavid Somayajulu } 2529afaf5a2dSDavid Somayajulu } 2530afaf5a2dSDavid Somayajulu return status; 2531afaf5a2dSDavid Somayajulu } 2532afaf5a2dSDavid Somayajulu 2533afaf5a2dSDavid Somayajulu /** 253409a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 253509a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 253609a0f719SVikas Chaudhary * 253709a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 253809a0f719SVikas Chaudhary * command. 253909a0f719SVikas Chaudhary **/ 254009a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 254109a0f719SVikas Chaudhary { 254209a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 254309a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 254409a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 254592b3e5bbSMike Christie unsigned long flags; 254609a0f719SVikas Chaudhary struct srb *srb = NULL; 254709a0f719SVikas Chaudhary int ret = SUCCESS; 254809a0f719SVikas Chaudhary int wait = 0; 254909a0f719SVikas Chaudhary 2550c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 25515cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 25525cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 255309a0f719SVikas Chaudhary 255492b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 255509a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 255692b3e5bbSMike Christie if (!srb) { 255792b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 255809a0f719SVikas Chaudhary return SUCCESS; 255992b3e5bbSMike Christie } 256009a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 256192b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 256209a0f719SVikas Chaudhary 256309a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 256409a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 256509a0f719SVikas Chaudhary ha->host_no, id, lun)); 256609a0f719SVikas Chaudhary ret = FAILED; 256709a0f719SVikas Chaudhary } else { 256809a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 256909a0f719SVikas Chaudhary ha->host_no, id, lun)); 257009a0f719SVikas Chaudhary wait = 1; 257109a0f719SVikas Chaudhary } 257209a0f719SVikas Chaudhary 257309a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 257409a0f719SVikas Chaudhary 257509a0f719SVikas Chaudhary /* Wait for command to complete */ 257609a0f719SVikas Chaudhary if (wait) { 257709a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 257809a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 257909a0f719SVikas Chaudhary ha->host_no, id, lun)); 258009a0f719SVikas Chaudhary ret = FAILED; 258109a0f719SVikas Chaudhary } 258209a0f719SVikas Chaudhary } 258309a0f719SVikas Chaudhary 2584c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 258509a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 258625985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 258709a0f719SVikas Chaudhary 258809a0f719SVikas Chaudhary return ret; 258909a0f719SVikas Chaudhary } 259009a0f719SVikas Chaudhary 259109a0f719SVikas Chaudhary /** 2592afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 2593afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 2594afaf5a2dSDavid Somayajulu * 2595afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 2596afaf5a2dSDavid Somayajulu * specified target. 2597afaf5a2dSDavid Somayajulu **/ 2598afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 2599afaf5a2dSDavid Somayajulu { 2600afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 2601afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 2602afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 2603afaf5a2dSDavid Somayajulu 2604612f7348SKaren Higgins if (!ddb_entry) 2605afaf5a2dSDavid Somayajulu return ret; 2606afaf5a2dSDavid Somayajulu 2607c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 2608c01be6dcSMike Christie if (ret) 2609c01be6dcSMike Christie return ret; 2610c01be6dcSMike Christie ret = FAILED; 2611c01be6dcSMike Christie 2612c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 2613afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 2614afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 2615afaf5a2dSDavid Somayajulu 2616afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 2617afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 2618afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 2619242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 2620afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 2621afaf5a2dSDavid Somayajulu 2622afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 2623afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 2624afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 2625c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 2626afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 2627afaf5a2dSDavid Somayajulu } 2628afaf5a2dSDavid Somayajulu 2629ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 2630ce545039SMike Christie cmd->device)) { 2631c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 2632afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 2633afaf5a2dSDavid Somayajulu "commands.\n"); 2634afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 2635afaf5a2dSDavid Somayajulu } 2636afaf5a2dSDavid Somayajulu 26379d562913SDavid C Somayajulu /* Send marker. */ 26389d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 26399d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 26409d562913SDavid C Somayajulu goto eh_dev_reset_done; 26419d562913SDavid C Somayajulu 2642c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 2643afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 2644afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 2645afaf5a2dSDavid Somayajulu cmd->device->lun); 2646afaf5a2dSDavid Somayajulu 2647afaf5a2dSDavid Somayajulu ret = SUCCESS; 2648afaf5a2dSDavid Somayajulu 2649afaf5a2dSDavid Somayajulu eh_dev_reset_done: 2650afaf5a2dSDavid Somayajulu 2651afaf5a2dSDavid Somayajulu return ret; 2652afaf5a2dSDavid Somayajulu } 2653afaf5a2dSDavid Somayajulu 2654afaf5a2dSDavid Somayajulu /** 2655ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 2656ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 2657ce545039SMike Christie * 2658ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 2659ce545039SMike Christie **/ 2660ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 2661ce545039SMike Christie { 2662ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 2663ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 2664c01be6dcSMike Christie int stat, ret; 2665ce545039SMike Christie 2666ce545039SMike Christie if (!ddb_entry) 2667ce545039SMike Christie return FAILED; 2668ce545039SMike Christie 2669c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 2670c01be6dcSMike Christie if (ret) 2671c01be6dcSMike Christie return ret; 2672c01be6dcSMike Christie 2673ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 2674ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 2675ce545039SMike Christie 2676ce545039SMike Christie DEBUG2(printk(KERN_INFO 2677ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 2678ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 2679242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 2680ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 2681ce545039SMike Christie 2682ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 2683ce545039SMike Christie if (stat != QLA_SUCCESS) { 2684ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 2685ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 2686ce545039SMike Christie return FAILED; 2687ce545039SMike Christie } 2688ce545039SMike Christie 2689ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 2690ce545039SMike Christie NULL)) { 2691ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 2692ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 2693ce545039SMike Christie "waiting for commands.\n"); 2694ce545039SMike Christie return FAILED; 2695ce545039SMike Christie } 2696ce545039SMike Christie 26979d562913SDavid C Somayajulu /* Send marker. */ 26989d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 26999d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 27009d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 27019d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 27029d562913SDavid C Somayajulu "marker iocb failed.\n"); 27039d562913SDavid C Somayajulu return FAILED; 27049d562913SDavid C Somayajulu } 27059d562913SDavid C Somayajulu 2706ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 2707ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 2708ce545039SMike Christie return SUCCESS; 2709ce545039SMike Christie } 2710ce545039SMike Christie 2711ce545039SMike Christie /** 2712afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 2713afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 2714afaf5a2dSDavid Somayajulu * 2715afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 2716afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 2717afaf5a2dSDavid Somayajulu **/ 2718afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 2719afaf5a2dSDavid Somayajulu { 2720afaf5a2dSDavid Somayajulu int return_status = FAILED; 2721afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 2722afaf5a2dSDavid Somayajulu 2723afaf5a2dSDavid Somayajulu ha = (struct scsi_qla_host *) cmd->device->host->hostdata; 2724afaf5a2dSDavid Somayajulu 2725f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 2726f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 2727f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2728f4f5df23SVikas Chaudhary return FAILED; 2729f4f5df23SVikas Chaudhary } 2730f4f5df23SVikas Chaudhary 2731c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 2732dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 2733afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 2734afaf5a2dSDavid Somayajulu 2735afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 2736afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 2737afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 2738afaf5a2dSDavid Somayajulu __func__)); 2739afaf5a2dSDavid Somayajulu 2740afaf5a2dSDavid Somayajulu return FAILED; 2741afaf5a2dSDavid Somayajulu } 2742afaf5a2dSDavid Somayajulu 2743f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 2744f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 2745f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2746f4f5df23SVikas Chaudhary else 2747f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2748f4f5df23SVikas Chaudhary } 274950a29aecSMike Christie 2750f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 2751afaf5a2dSDavid Somayajulu return_status = SUCCESS; 2752afaf5a2dSDavid Somayajulu 2753c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 275425985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 2755afaf5a2dSDavid Somayajulu 2756afaf5a2dSDavid Somayajulu return return_status; 2757afaf5a2dSDavid Somayajulu } 2758afaf5a2dSDavid Somayajulu 27592232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 27602232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 27612232be0dSLalit Chandivade * driver calls the following device driver's callbacks 27622232be0dSLalit Chandivade * 27632232be0dSLalit Chandivade * - Fatal Errors - link_reset 27642232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 27652232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 27662232be0dSLalit Chandivade * 27672232be0dSLalit Chandivade * PCI AER driver calls 27682232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 27692232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 27702232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 27712232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 27722232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 27732232be0dSLalit Chandivade */ 27742232be0dSLalit Chandivade static pci_ers_result_t 27752232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 27762232be0dSLalit Chandivade { 27772232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 27782232be0dSLalit Chandivade 27792232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 27802232be0dSLalit Chandivade ha->host_no, __func__, state); 27812232be0dSLalit Chandivade 27822232be0dSLalit Chandivade if (!is_aer_supported(ha)) 27832232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 27842232be0dSLalit Chandivade 27852232be0dSLalit Chandivade switch (state) { 27862232be0dSLalit Chandivade case pci_channel_io_normal: 27872232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 27882232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 27892232be0dSLalit Chandivade case pci_channel_io_frozen: 27902232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 27912232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 27922232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 27932232be0dSLalit Chandivade pci_disable_device(pdev); 27947b3595dfSVikas Chaudhary /* Return back all IOs */ 27957b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 27962232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 27972232be0dSLalit Chandivade case pci_channel_io_perm_failure: 27982232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 27992232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 28002232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 28012232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 28022232be0dSLalit Chandivade } 28032232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 28042232be0dSLalit Chandivade } 28052232be0dSLalit Chandivade 28062232be0dSLalit Chandivade /** 28072232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 28082232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 28092232be0dSLalit Chandivade * and read/write to the device still works. 28102232be0dSLalit Chandivade **/ 28112232be0dSLalit Chandivade static pci_ers_result_t 28122232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 28132232be0dSLalit Chandivade { 28142232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 28152232be0dSLalit Chandivade 28162232be0dSLalit Chandivade if (!is_aer_supported(ha)) 28172232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 28182232be0dSLalit Chandivade 28192232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 28202232be0dSLalit Chandivade } 28212232be0dSLalit Chandivade 28227b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 28232232be0dSLalit Chandivade { 28242232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 28257b3595dfSVikas Chaudhary uint32_t ret = 0; 28262232be0dSLalit Chandivade int fn; 28272232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 28282232be0dSLalit Chandivade 28292232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 28302232be0dSLalit Chandivade 28312232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 28322232be0dSLalit Chandivade 28332232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 28342232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 28352232be0dSLalit Chandivade qla4xxx_mark_all_devices_missing(ha); 28362232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 28372232be0dSLalit Chandivade } 28382232be0dSLalit Chandivade 28392232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 28402232be0dSLalit Chandivade while (fn > 0) { 28412232be0dSLalit Chandivade fn--; 28422232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 28432232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 28442232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 28452232be0dSLalit Chandivade * slot/function number */ 28462232be0dSLalit Chandivade other_pdev = 28472232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 28482232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 28492232be0dSLalit Chandivade fn)); 28502232be0dSLalit Chandivade 28512232be0dSLalit Chandivade if (!other_pdev) 28522232be0dSLalit Chandivade continue; 28532232be0dSLalit Chandivade 28542232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 28552232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 28562232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 28572232be0dSLalit Chandivade __func__, fn); 28582232be0dSLalit Chandivade pci_dev_put(other_pdev); 28592232be0dSLalit Chandivade break; 28602232be0dSLalit Chandivade } 28612232be0dSLalit Chandivade pci_dev_put(other_pdev); 28622232be0dSLalit Chandivade } 28632232be0dSLalit Chandivade 28642232be0dSLalit Chandivade /* The first function on the card, the reset owner will 28652232be0dSLalit Chandivade * start & initialize the firmware. The other functions 28662232be0dSLalit Chandivade * on the card will reset the firmware context 28672232be0dSLalit Chandivade */ 28682232be0dSLalit Chandivade if (!fn) { 28692232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 28702232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 28712232be0dSLalit Chandivade ha->pdev->devfn); 28722232be0dSLalit Chandivade 28732232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 28742232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 28752232be0dSLalit Chandivade QLA82XX_DEV_COLD); 28762232be0dSLalit Chandivade 28772232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 28782232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 28792232be0dSLalit Chandivade 28802232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 28812232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 28822232be0dSLalit Chandivade rval = qla4xxx_initialize_adapter(ha, PRESERVE_DDB_LIST); 28832232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 28842232be0dSLalit Chandivade 28852232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 28862232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 28872232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 28882232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 28892232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 28902232be0dSLalit Chandivade QLA82XX_DEV_FAILED); 28912232be0dSLalit Chandivade } else { 28922232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 28932232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 28942232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 28952232be0dSLalit Chandivade QLA82XX_DEV_READY); 28962232be0dSLalit Chandivade /* Clear driver state register */ 28972232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 28982232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 28997b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 29007b3595dfSVikas Chaudhary if (ret) { 29017b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 29027b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 29037b3595dfSVikas Chaudhary ha->pdev->irq); 29047b3595dfSVikas Chaudhary rval = QLA_ERROR; 29057b3595dfSVikas Chaudhary } else { 29062232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 29077b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 29087b3595dfSVikas Chaudhary } 29092232be0dSLalit Chandivade } 29102232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 29112232be0dSLalit Chandivade } else { 29122232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 29132232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 29142232be0dSLalit Chandivade ha->pdev->devfn); 29152232be0dSLalit Chandivade if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 29162232be0dSLalit Chandivade QLA82XX_DEV_READY)) { 29172232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 29182232be0dSLalit Chandivade rval = qla4xxx_initialize_adapter(ha, 29192232be0dSLalit Chandivade PRESERVE_DDB_LIST); 29207b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 29217b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 29227b3595dfSVikas Chaudhary if (ret) { 29237b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 29247b3595dfSVikas Chaudhary " reserve interrupt %d already in" 29257b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 29267b3595dfSVikas Chaudhary rval = QLA_ERROR; 29277b3595dfSVikas Chaudhary } else { 29282232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 29297b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 29307b3595dfSVikas Chaudhary } 29317b3595dfSVikas Chaudhary } 29322232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 29332232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 29342232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 29352232be0dSLalit Chandivade } 29362232be0dSLalit Chandivade } 29372232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 29382232be0dSLalit Chandivade return rval; 29392232be0dSLalit Chandivade } 29402232be0dSLalit Chandivade 29412232be0dSLalit Chandivade static pci_ers_result_t 29422232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 29432232be0dSLalit Chandivade { 29442232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 29452232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 29462232be0dSLalit Chandivade int rc; 29472232be0dSLalit Chandivade 29482232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 29492232be0dSLalit Chandivade ha->host_no, __func__); 29502232be0dSLalit Chandivade 29512232be0dSLalit Chandivade if (!is_aer_supported(ha)) 29522232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 29532232be0dSLalit Chandivade 29542232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 29552232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 29562232be0dSLalit Chandivade * IOV states 29572232be0dSLalit Chandivade */ 29582232be0dSLalit Chandivade pci_restore_state(pdev); 29592232be0dSLalit Chandivade 29602232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 29612232be0dSLalit Chandivade * save restored state which resets saved_state flag 29622232be0dSLalit Chandivade */ 29632232be0dSLalit Chandivade pci_save_state(pdev); 29642232be0dSLalit Chandivade 29652232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 29662232be0dSLalit Chandivade rc = pci_enable_device(pdev); 29672232be0dSLalit Chandivade if (rc) { 296825985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 29692232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 29702232be0dSLalit Chandivade goto exit_slot_reset; 29712232be0dSLalit Chandivade } 29722232be0dSLalit Chandivade 29737b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 29742232be0dSLalit Chandivade 29752232be0dSLalit Chandivade if (is_qla8022(ha)) { 29762232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 29772232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 29782232be0dSLalit Chandivade goto exit_slot_reset; 29792232be0dSLalit Chandivade } else 29802232be0dSLalit Chandivade goto exit_slot_reset; 29812232be0dSLalit Chandivade } 29822232be0dSLalit Chandivade 29832232be0dSLalit Chandivade exit_slot_reset: 29842232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 29852232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 29862232be0dSLalit Chandivade return ret; 29872232be0dSLalit Chandivade } 29882232be0dSLalit Chandivade 29892232be0dSLalit Chandivade static void 29902232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 29912232be0dSLalit Chandivade { 29922232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 29932232be0dSLalit Chandivade int ret; 29942232be0dSLalit Chandivade 29952232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 29962232be0dSLalit Chandivade ha->host_no, __func__); 29972232be0dSLalit Chandivade 29982232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 29992232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 30002232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 30012232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 30022232be0dSLalit Chandivade __func__); 30032232be0dSLalit Chandivade } 30042232be0dSLalit Chandivade 30052232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 30062232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 30072232be0dSLalit Chandivade } 30082232be0dSLalit Chandivade 30092232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 30102232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 30112232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 30122232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 30132232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 30142232be0dSLalit Chandivade }; 30152232be0dSLalit Chandivade 3016afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 3017afaf5a2dSDavid Somayajulu { 3018afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 3019afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 3020afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 3021afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 3022afaf5a2dSDavid Somayajulu }, 3023afaf5a2dSDavid Somayajulu { 3024afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 3025afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 3026afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 3027afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 3028afaf5a2dSDavid Somayajulu }, 3029d915058fSDavid C Somayajulu { 3030d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 3031d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 3032d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 3033d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 3034d915058fSDavid C Somayajulu }, 3035f4f5df23SVikas Chaudhary { 3036f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 3037f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 3038f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 3039f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 3040f4f5df23SVikas Chaudhary }, 3041afaf5a2dSDavid Somayajulu {0, 0}, 3042afaf5a2dSDavid Somayajulu }; 3043afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 3044afaf5a2dSDavid Somayajulu 304547975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 3046afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 3047afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 3048afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 3049afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 30502232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 3051afaf5a2dSDavid Somayajulu }; 3052afaf5a2dSDavid Somayajulu 3053afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 3054afaf5a2dSDavid Somayajulu { 3055afaf5a2dSDavid Somayajulu int ret; 3056afaf5a2dSDavid Somayajulu 3057afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 3058afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 305920c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 3060afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 3061afaf5a2dSDavid Somayajulu printk(KERN_ERR 3062afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 3063afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 3064afaf5a2dSDavid Somayajulu ret = -ENOMEM; 3065afaf5a2dSDavid Somayajulu goto no_srp_cache; 3066afaf5a2dSDavid Somayajulu } 3067afaf5a2dSDavid Somayajulu 3068afaf5a2dSDavid Somayajulu /* Derive version string. */ 3069afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 307011010fecSAndrew Vasquez if (ql4xextended_error_logging) 3071afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 3072afaf5a2dSDavid Somayajulu 3073afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 3074afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 3075afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 3076afaf5a2dSDavid Somayajulu ret = -ENODEV; 3077afaf5a2dSDavid Somayajulu goto release_srb_cache; 3078afaf5a2dSDavid Somayajulu } 3079afaf5a2dSDavid Somayajulu 3080afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 3081afaf5a2dSDavid Somayajulu if (ret) 3082afaf5a2dSDavid Somayajulu goto unregister_transport; 3083afaf5a2dSDavid Somayajulu 3084afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 3085afaf5a2dSDavid Somayajulu return 0; 30865ae16db3SDoug Maxey 3087afaf5a2dSDavid Somayajulu unregister_transport: 3088afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 3089afaf5a2dSDavid Somayajulu release_srb_cache: 3090afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 3091afaf5a2dSDavid Somayajulu no_srp_cache: 3092afaf5a2dSDavid Somayajulu return ret; 3093afaf5a2dSDavid Somayajulu } 3094afaf5a2dSDavid Somayajulu 3095afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 3096afaf5a2dSDavid Somayajulu { 3097afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 3098afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 3099afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 3100afaf5a2dSDavid Somayajulu } 3101afaf5a2dSDavid Somayajulu 3102afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 3103afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 3104afaf5a2dSDavid Somayajulu 3105afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 3106afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 3107afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 3108afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 3109