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> 92a991c21SManish Rangankar #include <linux/blkdev.h> 102a991c21SManish Rangankar #include <linux/iscsi_boot_sysfs.h> 11afaf5a2dSDavid Somayajulu 12afaf5a2dSDavid Somayajulu #include <scsi/scsi_tcq.h> 13afaf5a2dSDavid Somayajulu #include <scsi/scsicam.h> 14afaf5a2dSDavid Somayajulu 15afaf5a2dSDavid Somayajulu #include "ql4_def.h" 16bee4fe8eSDavid C Somayajulu #include "ql4_version.h" 17bee4fe8eSDavid C Somayajulu #include "ql4_glbl.h" 18bee4fe8eSDavid C Somayajulu #include "ql4_dbg.h" 19bee4fe8eSDavid C Somayajulu #include "ql4_inline.h" 20afaf5a2dSDavid Somayajulu 21afaf5a2dSDavid Somayajulu /* 22afaf5a2dSDavid Somayajulu * Driver version 23afaf5a2dSDavid Somayajulu */ 2447975477SAdrian Bunk static char qla4xxx_version_str[40]; 25afaf5a2dSDavid Somayajulu 26afaf5a2dSDavid Somayajulu /* 27afaf5a2dSDavid Somayajulu * SRB allocation cache 28afaf5a2dSDavid Somayajulu */ 29e18b890bSChristoph Lameter static struct kmem_cache *srb_cachep; 30afaf5a2dSDavid Somayajulu 31afaf5a2dSDavid Somayajulu /* 32afaf5a2dSDavid Somayajulu * Module parameter information and variables 33afaf5a2dSDavid Somayajulu */ 34afaf5a2dSDavid Somayajulu int ql4xdontresethba = 0; 35f4f5df23SVikas Chaudhary module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 36afaf5a2dSDavid Somayajulu MODULE_PARM_DESC(ql4xdontresethba, 37f4f5df23SVikas Chaudhary "Don't reset the HBA for driver recovery \n" 38f4f5df23SVikas Chaudhary " 0 - It will reset HBA (Default)\n" 39f4f5df23SVikas Chaudhary " 1 - It will NOT reset HBA"); 40afaf5a2dSDavid Somayajulu 4111010fecSAndrew Vasquez int ql4xextended_error_logging = 0; /* 0 = off, 1 = log errors */ 42f4f5df23SVikas Chaudhary module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 4311010fecSAndrew Vasquez MODULE_PARM_DESC(ql4xextended_error_logging, 44afaf5a2dSDavid Somayajulu "Option to enable extended error logging, " 45afaf5a2dSDavid Somayajulu "Default is 0 - no logging, 1 - debug logging"); 46afaf5a2dSDavid Somayajulu 47f4f5df23SVikas Chaudhary int ql4xenablemsix = 1; 48f4f5df23SVikas Chaudhary module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 49f4f5df23SVikas Chaudhary MODULE_PARM_DESC(ql4xenablemsix, 50f4f5df23SVikas Chaudhary "Set to enable MSI or MSI-X interrupt mechanism.\n" 51f4f5df23SVikas Chaudhary " 0 = enable INTx interrupt mechanism.\n" 52f4f5df23SVikas Chaudhary " 1 = enable MSI-X interrupt mechanism (Default).\n" 53f4f5df23SVikas Chaudhary " 2 = enable MSI interrupt mechanism."); 54477ffb9dSDavid C Somayajulu 55d510d965SMike Christie #define QL4_DEF_QDEPTH 32 568bb4033dSVikas Chaudhary static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 578bb4033dSVikas Chaudhary module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 588bb4033dSVikas Chaudhary MODULE_PARM_DESC(ql4xmaxqdepth, 598bb4033dSVikas Chaudhary "Maximum queue depth to report for target devices.\n" 608bb4033dSVikas Chaudhary " Default: 32."); 61d510d965SMike Christie 623038727cSVikas Chaudhary static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 633038727cSVikas Chaudhary module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 643038727cSVikas Chaudhary MODULE_PARM_DESC(ql4xsess_recovery_tmo, 653038727cSVikas Chaudhary "Target Session Recovery Timeout.\n" 663038727cSVikas Chaudhary " Default: 30 sec."); 673038727cSVikas Chaudhary 68b3a271a9SManish Rangankar static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 69afaf5a2dSDavid Somayajulu /* 70afaf5a2dSDavid Somayajulu * SCSI host template entry points 71afaf5a2dSDavid Somayajulu */ 7247975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 73afaf5a2dSDavid Somayajulu 74afaf5a2dSDavid Somayajulu /* 75afaf5a2dSDavid Somayajulu * iSCSI template entry points 76afaf5a2dSDavid Somayajulu */ 77afaf5a2dSDavid Somayajulu static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 78afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf); 79aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 80aa1e93a2SMike Christie enum iscsi_host_param param, char *buf); 81d00efe3fSMike Christie static int qla4xxx_iface_set_param(struct Scsi_Host *shost, char *data, 82d00efe3fSMike Christie int count); 83ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 84ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 85ed1086e0SVikas Chaudhary int param, char *buf); 865c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 87b3a271a9SManish Rangankar static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 88b3a271a9SManish Rangankar struct sockaddr *dst_addr, 89b3a271a9SManish Rangankar int non_blocking); 90b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 91b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 92b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 93b3a271a9SManish Rangankar enum iscsi_param param, char *buf); 94b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 95b3a271a9SManish Rangankar static struct iscsi_cls_conn * 96b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 97b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 98b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 99b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading); 100b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 101b3a271a9SManish Rangankar static struct iscsi_cls_session * 102b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 103b3a271a9SManish Rangankar uint16_t qdepth, uint32_t initial_cmdsn); 104b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 105b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata); 106b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 107b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *); 108b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *); 109b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 110b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 111b3a271a9SManish Rangankar struct iscsi_stats *stats); 112afaf5a2dSDavid Somayajulu /* 113afaf5a2dSDavid Somayajulu * SCSI host template entry points 114afaf5a2dSDavid Somayajulu */ 115f281233dSJeff Garzik static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 11609a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 117afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 118ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 119afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 120afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *device); 121afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *device); 122afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev); 1233128c6c7SMike Christie static mode_t ql4_attr_is_visible(int param_type, int param); 124afaf5a2dSDavid Somayajulu 125f4f5df23SVikas Chaudhary static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 126f4f5df23SVikas Chaudhary QLA82XX_LEGACY_INTR_CONFIG; 127f4f5df23SVikas Chaudhary 128afaf5a2dSDavid Somayajulu static struct scsi_host_template qla4xxx_driver_template = { 129afaf5a2dSDavid Somayajulu .module = THIS_MODULE, 130afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 131afaf5a2dSDavid Somayajulu .proc_name = DRIVER_NAME, 132afaf5a2dSDavid Somayajulu .queuecommand = qla4xxx_queuecommand, 133afaf5a2dSDavid Somayajulu 13409a0f719SVikas Chaudhary .eh_abort_handler = qla4xxx_eh_abort, 135afaf5a2dSDavid Somayajulu .eh_device_reset_handler = qla4xxx_eh_device_reset, 136ce545039SMike Christie .eh_target_reset_handler = qla4xxx_eh_target_reset, 137afaf5a2dSDavid Somayajulu .eh_host_reset_handler = qla4xxx_eh_host_reset, 1385c656af7SMike Christie .eh_timed_out = qla4xxx_eh_cmd_timed_out, 139afaf5a2dSDavid Somayajulu 140afaf5a2dSDavid Somayajulu .slave_configure = qla4xxx_slave_configure, 141afaf5a2dSDavid Somayajulu .slave_alloc = qla4xxx_slave_alloc, 142afaf5a2dSDavid Somayajulu .slave_destroy = qla4xxx_slave_destroy, 143afaf5a2dSDavid Somayajulu 144afaf5a2dSDavid Somayajulu .this_id = -1, 145afaf5a2dSDavid Somayajulu .cmd_per_lun = 3, 146afaf5a2dSDavid Somayajulu .use_clustering = ENABLE_CLUSTERING, 147afaf5a2dSDavid Somayajulu .sg_tablesize = SG_ALL, 148afaf5a2dSDavid Somayajulu 149afaf5a2dSDavid Somayajulu .max_sectors = 0xFFFF, 1507ad633c0SHarish Zunjarrao .shost_attrs = qla4xxx_host_attrs, 151a355943cSVikas Chaudhary .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 152afaf5a2dSDavid Somayajulu }; 153afaf5a2dSDavid Somayajulu 154afaf5a2dSDavid Somayajulu static struct iscsi_transport qla4xxx_iscsi_transport = { 155afaf5a2dSDavid Somayajulu .owner = THIS_MODULE, 156afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 157b3a271a9SManish Rangankar .caps = CAP_TEXT_NEGO | 158b3a271a9SManish Rangankar CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 159b3a271a9SManish Rangankar CAP_DATADGST | CAP_LOGIN_OFFLOAD | 160b3a271a9SManish Rangankar CAP_MULTI_R2T, 1613128c6c7SMike Christie .attr_is_visible = ql4_attr_is_visible, 162b3a271a9SManish Rangankar .create_session = qla4xxx_session_create, 163b3a271a9SManish Rangankar .destroy_session = qla4xxx_session_destroy, 164b3a271a9SManish Rangankar .start_conn = qla4xxx_conn_start, 165b3a271a9SManish Rangankar .create_conn = qla4xxx_conn_create, 166b3a271a9SManish Rangankar .bind_conn = qla4xxx_conn_bind, 167b3a271a9SManish Rangankar .stop_conn = iscsi_conn_stop, 168b3a271a9SManish Rangankar .destroy_conn = qla4xxx_conn_destroy, 169b3a271a9SManish Rangankar .set_param = iscsi_set_param, 170afaf5a2dSDavid Somayajulu .get_conn_param = qla4xxx_conn_get_param, 171b3a271a9SManish Rangankar .get_session_param = iscsi_session_get_param, 172b3a271a9SManish Rangankar .get_ep_param = qla4xxx_get_ep_param, 173b3a271a9SManish Rangankar .ep_connect = qla4xxx_ep_connect, 174b3a271a9SManish Rangankar .ep_poll = qla4xxx_ep_poll, 175b3a271a9SManish Rangankar .ep_disconnect = qla4xxx_ep_disconnect, 176b3a271a9SManish Rangankar .get_stats = qla4xxx_conn_get_stats, 177b3a271a9SManish Rangankar .send_pdu = iscsi_conn_send_pdu, 178b3a271a9SManish Rangankar .xmit_task = qla4xxx_task_xmit, 179b3a271a9SManish Rangankar .cleanup_task = qla4xxx_task_cleanup, 180b3a271a9SManish Rangankar .alloc_pdu = qla4xxx_alloc_pdu, 181b3a271a9SManish Rangankar 182aa1e93a2SMike Christie .get_host_param = qla4xxx_host_get_param, 183d00efe3fSMike Christie .set_iface_param = qla4xxx_iface_set_param, 184ed1086e0SVikas Chaudhary .get_iface_param = qla4xxx_get_iface_param, 185a355943cSVikas Chaudhary .bsg_request = qla4xxx_bsg_request, 186afaf5a2dSDavid Somayajulu }; 187afaf5a2dSDavid Somayajulu 188afaf5a2dSDavid Somayajulu static struct scsi_transport_template *qla4xxx_scsi_transport; 189afaf5a2dSDavid Somayajulu 1903128c6c7SMike Christie static mode_t ql4_attr_is_visible(int param_type, int param) 1913128c6c7SMike Christie { 1923128c6c7SMike Christie switch (param_type) { 193f27fb2efSMike Christie case ISCSI_HOST_PARAM: 194f27fb2efSMike Christie switch (param) { 195f27fb2efSMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 196f27fb2efSMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 197f27fb2efSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 198f27fb2efSMike Christie return S_IRUGO; 199f27fb2efSMike Christie default: 200f27fb2efSMike Christie return 0; 201f27fb2efSMike Christie } 2023128c6c7SMike Christie case ISCSI_PARAM: 2033128c6c7SMike Christie switch (param) { 2043128c6c7SMike Christie case ISCSI_PARAM_CONN_ADDRESS: 2053128c6c7SMike Christie case ISCSI_PARAM_CONN_PORT: 2061d063c17SMike Christie case ISCSI_PARAM_TARGET_NAME: 2071d063c17SMike Christie case ISCSI_PARAM_TPGT: 2081d063c17SMike Christie case ISCSI_PARAM_TARGET_ALIAS: 209b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_BURST: 210b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_R2T: 211b3a271a9SManish Rangankar case ISCSI_PARAM_FIRST_BURST: 212b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_RECV_DLENGTH: 213b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_XMIT_DLENGTH: 2143128c6c7SMike Christie return S_IRUGO; 2153128c6c7SMike Christie default: 2163128c6c7SMike Christie return 0; 2173128c6c7SMike Christie } 218b78dbba0SMike Christie case ISCSI_NET_PARAM: 219b78dbba0SMike Christie switch (param) { 220b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 221b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 222b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_GW: 223b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 224b78dbba0SMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 225b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 226b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 227b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 228b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 229b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2306ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 2316ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 2326ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 233943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 2342ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 235b78dbba0SMike Christie return S_IRUGO; 236b78dbba0SMike Christie default: 237b78dbba0SMike Christie return 0; 238b78dbba0SMike Christie } 2393128c6c7SMike Christie } 2403128c6c7SMike Christie 2413128c6c7SMike Christie return 0; 2423128c6c7SMike Christie } 2433128c6c7SMike Christie 244ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 245ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 246ed1086e0SVikas Chaudhary int param, char *buf) 247ed1086e0SVikas Chaudhary { 248ed1086e0SVikas Chaudhary struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 249ed1086e0SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 250ed1086e0SVikas Chaudhary int len = -ENOSYS; 251ed1086e0SVikas Chaudhary 252ed1086e0SVikas Chaudhary if (param_type != ISCSI_NET_PARAM) 253ed1086e0SVikas Chaudhary return -ENOSYS; 254ed1086e0SVikas Chaudhary 255ed1086e0SVikas Chaudhary switch (param) { 256ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_ADDR: 257ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 258ed1086e0SVikas Chaudhary break; 259ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_SUBNET: 260ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 261ed1086e0SVikas Chaudhary break; 262ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_GW: 263ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 264ed1086e0SVikas Chaudhary break; 265ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IFACE_ENABLE: 266ed1086e0SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 267ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 268ed1086e0SVikas Chaudhary (ha->ip_config.ipv4_options & 269ed1086e0SVikas Chaudhary IPOPT_IPV4_PROTOCOL_ENABLE) ? 270ed1086e0SVikas Chaudhary "enabled" : "disabled"); 271ed1086e0SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 272ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 273ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_options & 274ed1086e0SVikas Chaudhary IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 275ed1086e0SVikas Chaudhary "enabled" : "disabled"); 276ed1086e0SVikas Chaudhary break; 277ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 278ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 279ed1086e0SVikas Chaudhary (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 280ed1086e0SVikas Chaudhary "dhcp" : "static"); 281ed1086e0SVikas Chaudhary break; 282ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR: 283ed1086e0SVikas Chaudhary if (iface->iface_num == 0) 284ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 285ed1086e0SVikas Chaudhary if (iface->iface_num == 1) 286ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 287ed1086e0SVikas Chaudhary break; 288ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 289ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 290ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr); 291ed1086e0SVikas Chaudhary break; 292ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ROUTER: 293ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 294ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_default_router_addr); 295ed1086e0SVikas Chaudhary break; 296ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 297ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 298ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 299ed1086e0SVikas Chaudhary IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 300ed1086e0SVikas Chaudhary "nd" : "static"); 301ed1086e0SVikas Chaudhary break; 302ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 303ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 304ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 305ed1086e0SVikas Chaudhary IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 306ed1086e0SVikas Chaudhary "auto" : "static"); 307ed1086e0SVikas Chaudhary break; 3086ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 3096ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3106ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3116ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_vlan_tag & 3126ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3136ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3146ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3156ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_vlan_tag & 3166ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3176ac73e8cSVikas Chaudhary break; 3186ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 3196ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3206ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3216ac73e8cSVikas Chaudhary ((ha->ip_config.ipv4_vlan_tag >> 13) & 3226ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3236ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3246ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3256ac73e8cSVikas Chaudhary ((ha->ip_config.ipv6_vlan_tag >> 13) & 3266ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3276ac73e8cSVikas Chaudhary break; 3286ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 3296ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3306ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3316ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_options & 3326ac73e8cSVikas Chaudhary IPOPT_VLAN_TAGGING_ENABLE) ? 3336ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3346ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3356ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3366ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_options & 3376ac73e8cSVikas Chaudhary IPV6_OPT_VLAN_TAGGING_ENABLE) ? 3386ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3396ac73e8cSVikas Chaudhary break; 340943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 341943c157bSVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 342943c157bSVikas Chaudhary break; 3432ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 3442ada7fc5SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3452ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port); 3462ada7fc5SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3472ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port); 3482ada7fc5SVikas Chaudhary break; 349ed1086e0SVikas Chaudhary default: 350ed1086e0SVikas Chaudhary len = -ENOSYS; 351ed1086e0SVikas Chaudhary } 352ed1086e0SVikas Chaudhary 353ed1086e0SVikas Chaudhary return len; 354ed1086e0SVikas Chaudhary } 355ed1086e0SVikas Chaudhary 356b3a271a9SManish Rangankar static struct iscsi_endpoint * 357b3a271a9SManish Rangankar qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 358b3a271a9SManish Rangankar int non_blocking) 359b3a271a9SManish Rangankar { 360b3a271a9SManish Rangankar int ret; 361b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 362b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 363b3a271a9SManish Rangankar struct scsi_qla_host *ha; 364b3a271a9SManish Rangankar struct sockaddr_in *addr; 365b3a271a9SManish Rangankar struct sockaddr_in6 *addr6; 366b3a271a9SManish Rangankar 367b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 368b3a271a9SManish Rangankar if (!shost) { 369b3a271a9SManish Rangankar ret = -ENXIO; 370b3a271a9SManish Rangankar printk(KERN_ERR "%s: shost is NULL\n", 371b3a271a9SManish Rangankar __func__); 372b3a271a9SManish Rangankar return ERR_PTR(ret); 373b3a271a9SManish Rangankar } 374b3a271a9SManish Rangankar 375b3a271a9SManish Rangankar ha = iscsi_host_priv(shost); 376b3a271a9SManish Rangankar 377b3a271a9SManish Rangankar ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 378b3a271a9SManish Rangankar if (!ep) { 379b3a271a9SManish Rangankar ret = -ENOMEM; 380b3a271a9SManish Rangankar return ERR_PTR(ret); 381b3a271a9SManish Rangankar } 382b3a271a9SManish Rangankar 383b3a271a9SManish Rangankar qla_ep = ep->dd_data; 384b3a271a9SManish Rangankar memset(qla_ep, 0, sizeof(struct qla_endpoint)); 385b3a271a9SManish Rangankar if (dst_addr->sa_family == AF_INET) { 386b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 387b3a271a9SManish Rangankar addr = (struct sockaddr_in *)&qla_ep->dst_addr; 388b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 389b3a271a9SManish Rangankar (char *)&addr->sin_addr)); 390b3a271a9SManish Rangankar } else if (dst_addr->sa_family == AF_INET6) { 391b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, 392b3a271a9SManish Rangankar sizeof(struct sockaddr_in6)); 393b3a271a9SManish Rangankar addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 394b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 395b3a271a9SManish Rangankar (char *)&addr6->sin6_addr)); 396b3a271a9SManish Rangankar } 397b3a271a9SManish Rangankar 398b3a271a9SManish Rangankar qla_ep->host = shost; 399b3a271a9SManish Rangankar 400b3a271a9SManish Rangankar return ep; 401b3a271a9SManish Rangankar } 402b3a271a9SManish Rangankar 403b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 404b3a271a9SManish Rangankar { 405b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 406b3a271a9SManish Rangankar struct scsi_qla_host *ha; 407b3a271a9SManish Rangankar int ret = 0; 408b3a271a9SManish Rangankar 409b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 410b3a271a9SManish Rangankar qla_ep = ep->dd_data; 411b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 412b3a271a9SManish Rangankar 413b3a271a9SManish Rangankar if (adapter_up(ha)) 414b3a271a9SManish Rangankar ret = 1; 415b3a271a9SManish Rangankar 416b3a271a9SManish Rangankar return ret; 417b3a271a9SManish Rangankar } 418b3a271a9SManish Rangankar 419b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 420b3a271a9SManish Rangankar { 421b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 422b3a271a9SManish Rangankar iscsi_destroy_endpoint(ep); 423b3a271a9SManish Rangankar } 424b3a271a9SManish Rangankar 425b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 426b3a271a9SManish Rangankar enum iscsi_param param, 427b3a271a9SManish Rangankar char *buf) 428b3a271a9SManish Rangankar { 429b3a271a9SManish Rangankar struct qla_endpoint *qla_ep = ep->dd_data; 430b3a271a9SManish Rangankar struct sockaddr *dst_addr; 431b3a271a9SManish Rangankar 432b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 433b3a271a9SManish Rangankar 434b3a271a9SManish Rangankar switch (param) { 435b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_PORT: 436b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_ADDRESS: 437b3a271a9SManish Rangankar if (!qla_ep) 438b3a271a9SManish Rangankar return -ENOTCONN; 439b3a271a9SManish Rangankar 440b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 441b3a271a9SManish Rangankar if (!dst_addr) 442b3a271a9SManish Rangankar return -ENOTCONN; 443b3a271a9SManish Rangankar 444b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 445b3a271a9SManish Rangankar &qla_ep->dst_addr, param, buf); 446b3a271a9SManish Rangankar default: 447b3a271a9SManish Rangankar return -ENOSYS; 448b3a271a9SManish Rangankar } 449b3a271a9SManish Rangankar } 450b3a271a9SManish Rangankar 451b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 452b3a271a9SManish Rangankar struct iscsi_stats *stats) 453b3a271a9SManish Rangankar { 454b3a271a9SManish Rangankar struct iscsi_session *sess; 455b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 456b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 457b3a271a9SManish Rangankar struct scsi_qla_host *ha; 458b3a271a9SManish Rangankar struct ql_iscsi_stats *ql_iscsi_stats; 459b3a271a9SManish Rangankar int stats_size; 460b3a271a9SManish Rangankar int ret; 461b3a271a9SManish Rangankar dma_addr_t iscsi_stats_dma; 462b3a271a9SManish Rangankar 463b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 464b3a271a9SManish Rangankar 465b3a271a9SManish Rangankar cls_sess = iscsi_conn_to_session(cls_conn); 466b3a271a9SManish Rangankar sess = cls_sess->dd_data; 467b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 468b3a271a9SManish Rangankar ha = ddb_entry->ha; 469b3a271a9SManish Rangankar 470b3a271a9SManish Rangankar stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 471b3a271a9SManish Rangankar /* Allocate memory */ 472b3a271a9SManish Rangankar ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 473b3a271a9SManish Rangankar &iscsi_stats_dma, GFP_KERNEL); 474b3a271a9SManish Rangankar if (!ql_iscsi_stats) { 475b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 476b3a271a9SManish Rangankar "Unable to allocate memory for iscsi stats\n"); 477b3a271a9SManish Rangankar goto exit_get_stats; 478b3a271a9SManish Rangankar } 479b3a271a9SManish Rangankar 480b3a271a9SManish Rangankar ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 481b3a271a9SManish Rangankar iscsi_stats_dma); 482b3a271a9SManish Rangankar if (ret != QLA_SUCCESS) { 483b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 484b3a271a9SManish Rangankar "Unable to retreive iscsi stats\n"); 485b3a271a9SManish Rangankar goto free_stats; 486b3a271a9SManish Rangankar } 487b3a271a9SManish Rangankar 488b3a271a9SManish Rangankar /* octets */ 489b3a271a9SManish Rangankar stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 490b3a271a9SManish Rangankar stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 491b3a271a9SManish Rangankar /* xmit pdus */ 492b3a271a9SManish Rangankar stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 493b3a271a9SManish Rangankar stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 494b3a271a9SManish Rangankar stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 495b3a271a9SManish Rangankar stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 496b3a271a9SManish Rangankar stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 497b3a271a9SManish Rangankar stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 498b3a271a9SManish Rangankar stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 499b3a271a9SManish Rangankar stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 500b3a271a9SManish Rangankar /* recv pdus */ 501b3a271a9SManish Rangankar stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 502b3a271a9SManish Rangankar stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 503b3a271a9SManish Rangankar stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 504b3a271a9SManish Rangankar stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 505b3a271a9SManish Rangankar stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 506b3a271a9SManish Rangankar stats->logoutrsp_pdus = 507b3a271a9SManish Rangankar le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 508b3a271a9SManish Rangankar stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 509b3a271a9SManish Rangankar stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 510b3a271a9SManish Rangankar stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 511b3a271a9SManish Rangankar 512b3a271a9SManish Rangankar free_stats: 513b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 514b3a271a9SManish Rangankar iscsi_stats_dma); 515b3a271a9SManish Rangankar exit_get_stats: 516b3a271a9SManish Rangankar return; 517b3a271a9SManish Rangankar } 518b3a271a9SManish Rangankar 5195c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 5205c656af7SMike Christie { 5215c656af7SMike Christie struct iscsi_cls_session *session; 522b3a271a9SManish Rangankar struct iscsi_session *sess; 523b3a271a9SManish Rangankar unsigned long flags; 524b3a271a9SManish Rangankar enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 5255c656af7SMike Christie 5265c656af7SMike Christie session = starget_to_session(scsi_target(sc->device)); 527b3a271a9SManish Rangankar sess = session->dd_data; 5285c656af7SMike Christie 529b3a271a9SManish Rangankar spin_lock_irqsave(&session->lock, flags); 530b3a271a9SManish Rangankar if (session->state == ISCSI_SESSION_FAILED) 531b3a271a9SManish Rangankar ret = BLK_EH_RESET_TIMER; 532b3a271a9SManish Rangankar spin_unlock_irqrestore(&session->lock, flags); 5335c656af7SMike Christie 534b3a271a9SManish Rangankar return ret; 535568d303bSMike Christie } 536afaf5a2dSDavid Somayajulu 537aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 538aa1e93a2SMike Christie enum iscsi_host_param param, char *buf) 539aa1e93a2SMike Christie { 540aa1e93a2SMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 541aa1e93a2SMike Christie int len; 542aa1e93a2SMike Christie 543aa1e93a2SMike Christie switch (param) { 544aa1e93a2SMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 5457ffc49a6SMichael Chan len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 546aa1e93a2SMike Christie break; 54722236961SMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 5482bab08fcSVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 54922236961SMike Christie break; 5508ad5781aSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 55122236961SMike Christie len = sprintf(buf, "%s\n", ha->name_string); 5528ad5781aSMike Christie break; 553aa1e93a2SMike Christie default: 554aa1e93a2SMike Christie return -ENOSYS; 555aa1e93a2SMike Christie } 556aa1e93a2SMike Christie 557aa1e93a2SMike Christie return len; 558aa1e93a2SMike Christie } 559aa1e93a2SMike Christie 560ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 561ed1086e0SVikas Chaudhary { 562ed1086e0SVikas Chaudhary if (ha->iface_ipv4) 563ed1086e0SVikas Chaudhary return; 564ed1086e0SVikas Chaudhary 565ed1086e0SVikas Chaudhary /* IPv4 */ 566ed1086e0SVikas Chaudhary ha->iface_ipv4 = iscsi_create_iface(ha->host, 567ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 568ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV4, 0, 0); 569ed1086e0SVikas Chaudhary if (!ha->iface_ipv4) 570ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 571ed1086e0SVikas Chaudhary "iface0.\n"); 572ed1086e0SVikas Chaudhary } 573ed1086e0SVikas Chaudhary 574ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 575ed1086e0SVikas Chaudhary { 576ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 577ed1086e0SVikas Chaudhary /* IPv6 iface-0 */ 578ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 579ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 580ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 0, 581ed1086e0SVikas Chaudhary 0); 582ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 583ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 584ed1086e0SVikas Chaudhary "iface0.\n"); 585ed1086e0SVikas Chaudhary 586ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 587ed1086e0SVikas Chaudhary /* IPv6 iface-1 */ 588ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 589ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 590ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 1, 591ed1086e0SVikas Chaudhary 0); 592ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 593ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 594ed1086e0SVikas Chaudhary "iface1.\n"); 595ed1086e0SVikas Chaudhary } 596ed1086e0SVikas Chaudhary 597ed1086e0SVikas Chaudhary static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 598ed1086e0SVikas Chaudhary { 599ed1086e0SVikas Chaudhary if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 600ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 601ed1086e0SVikas Chaudhary 602ed1086e0SVikas Chaudhary if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 603ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 604ed1086e0SVikas Chaudhary } 605ed1086e0SVikas Chaudhary 606ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 607ed1086e0SVikas Chaudhary { 608ed1086e0SVikas Chaudhary if (ha->iface_ipv4) { 609ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv4); 610ed1086e0SVikas Chaudhary ha->iface_ipv4 = NULL; 611ed1086e0SVikas Chaudhary } 612ed1086e0SVikas Chaudhary } 613ed1086e0SVikas Chaudhary 614ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 615ed1086e0SVikas Chaudhary { 616ed1086e0SVikas Chaudhary if (ha->iface_ipv6_0) { 617ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_0); 618ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = NULL; 619ed1086e0SVikas Chaudhary } 620ed1086e0SVikas Chaudhary if (ha->iface_ipv6_1) { 621ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_1); 622ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = NULL; 623ed1086e0SVikas Chaudhary } 624ed1086e0SVikas Chaudhary } 625ed1086e0SVikas Chaudhary 626ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 627ed1086e0SVikas Chaudhary { 628ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 629ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 630ed1086e0SVikas Chaudhary } 631ed1086e0SVikas Chaudhary 632d00efe3fSMike Christie static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 633d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 634d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 635d00efe3fSMike Christie { 636d00efe3fSMike Christie /* 637d00efe3fSMike Christie * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 638d00efe3fSMike Christie * iface_num 1 is valid only for IPv6 Addr. 639d00efe3fSMike Christie */ 640d00efe3fSMike Christie switch (iface_param->param) { 641d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 642d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 643d00efe3fSMike Christie /* IPv6 Addr 1 */ 644d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 645d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr1)); 646d00efe3fSMike Christie else 647d00efe3fSMike Christie /* IPv6 Addr 0 */ 648d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 649d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr0)); 650d00efe3fSMike Christie break; 651d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 652d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 653d00efe3fSMike Christie break; 654d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 655d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_if_id)); 656d00efe3fSMike Christie break; 657d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 658d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 659d00efe3fSMike Christie break; 660d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 661d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 662d00efe3fSMike Christie break; 663d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 664d00efe3fSMike Christie /* Autocfg applies to even interface */ 665d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 666d00efe3fSMike Christie break; 667d00efe3fSMike Christie 668d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 669d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= 670d00efe3fSMike Christie cpu_to_le16( 671d00efe3fSMike Christie ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 672d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 673d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= 674d00efe3fSMike Christie cpu_to_le16( 675d00efe3fSMike Christie IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 676d00efe3fSMike Christie else 677d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 678d00efe3fSMike Christie "IPv6 addr\n"); 679d00efe3fSMike Christie break; 680d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 681d00efe3fSMike Christie /* Autocfg applies to even interface */ 682d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 683d00efe3fSMike Christie break; 684d00efe3fSMike Christie 685d00efe3fSMike Christie if (iface_param->value[0] == 686d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 687d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 688d00efe3fSMike Christie IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 689d00efe3fSMike Christie else if (iface_param->value[0] == 690d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 691d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 692d00efe3fSMike Christie ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 693d00efe3fSMike Christie else 694d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 695d00efe3fSMike Christie "IPv6 linklocal addr\n"); 696d00efe3fSMike Christie break; 697d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 698d00efe3fSMike Christie /* Autocfg applies to even interface */ 699d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 700d00efe3fSMike Christie break; 701d00efe3fSMike Christie 702d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 703d00efe3fSMike Christie memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 704d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 705d00efe3fSMike Christie break; 706d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 707ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 708d00efe3fSMike Christie init_fw_cb->ipv6_opts |= 709d00efe3fSMike Christie cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 710ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 711ed1086e0SVikas Chaudhary } else { 712d00efe3fSMike Christie init_fw_cb->ipv6_opts &= 713d00efe3fSMike Christie cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 714d00efe3fSMike Christie 0xFFFF); 715ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 716ed1086e0SVikas Chaudhary } 717d00efe3fSMike Christie break; 718d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 719d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 720d00efe3fSMike Christie break; 7216ac73e8cSVikas Chaudhary init_fw_cb->ipv6_vlan_tag = 7226ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 7236ac73e8cSVikas Chaudhary break; 7246ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 7256ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 7266ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts |= 7276ac73e8cSVikas Chaudhary cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 7286ac73e8cSVikas Chaudhary else 7296ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts &= 7306ac73e8cSVikas Chaudhary cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 731d00efe3fSMike Christie break; 732943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 733943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 734943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 735943c157bSVikas Chaudhary break; 7362ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 7372ada7fc5SVikas Chaudhary /* Autocfg applies to even interface */ 7382ada7fc5SVikas Chaudhary if (iface_param->iface_num & 0x1) 7392ada7fc5SVikas Chaudhary break; 7402ada7fc5SVikas Chaudhary 7412ada7fc5SVikas Chaudhary init_fw_cb->ipv6_port = 7422ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 7432ada7fc5SVikas Chaudhary break; 744d00efe3fSMike Christie default: 745d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 746d00efe3fSMike Christie iface_param->param); 747d00efe3fSMike Christie break; 748d00efe3fSMike Christie } 749d00efe3fSMike Christie } 750d00efe3fSMike Christie 751d00efe3fSMike Christie static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 752d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 753d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 754d00efe3fSMike Christie { 755d00efe3fSMike Christie switch (iface_param->param) { 756d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 757d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_addr, iface_param->value, 758d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_addr)); 759d00efe3fSMike Christie break; 760d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 761d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 762d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_subnet)); 763d00efe3fSMike Christie break; 764d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_GW: 765d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 766d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_gw_addr)); 767d00efe3fSMike Christie break; 768d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 769d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 770d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts |= 771d00efe3fSMike Christie cpu_to_le16(TCPOPT_DHCP_ENABLE); 772d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 773d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts &= 774d00efe3fSMike Christie cpu_to_le16(~TCPOPT_DHCP_ENABLE); 775d00efe3fSMike Christie else 776d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 777d00efe3fSMike Christie break; 778d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 779ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 780d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts |= 7812bab08fcSVikas Chaudhary cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 782ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 783ed1086e0SVikas Chaudhary } else { 784d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts &= 7852bab08fcSVikas Chaudhary cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 786d00efe3fSMike Christie 0xFFFF); 787ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 788ed1086e0SVikas Chaudhary } 789d00efe3fSMike Christie break; 790d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 791d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 792d00efe3fSMike Christie break; 7936ac73e8cSVikas Chaudhary init_fw_cb->ipv4_vlan_tag = 7946ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 7956ac73e8cSVikas Chaudhary break; 7966ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 7976ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 7986ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts |= 7996ac73e8cSVikas Chaudhary cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 8006ac73e8cSVikas Chaudhary else 8016ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts &= 8026ac73e8cSVikas Chaudhary cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 803d00efe3fSMike Christie break; 804943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 805943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 806943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 807943c157bSVikas Chaudhary break; 8082ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 8092ada7fc5SVikas Chaudhary init_fw_cb->ipv4_port = 8102ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 8112ada7fc5SVikas Chaudhary break; 812d00efe3fSMike Christie default: 813d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 814d00efe3fSMike Christie iface_param->param); 815d00efe3fSMike Christie break; 816d00efe3fSMike Christie } 817d00efe3fSMike Christie } 818d00efe3fSMike Christie 819d00efe3fSMike Christie static void 820d00efe3fSMike Christie qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 821d00efe3fSMike Christie { 822d00efe3fSMike Christie struct addr_ctrl_blk_def *acb; 823d00efe3fSMike Christie acb = (struct addr_ctrl_blk_def *)init_fw_cb; 824d00efe3fSMike Christie memset(acb->reserved1, 0, sizeof(acb->reserved1)); 825d00efe3fSMike Christie memset(acb->reserved2, 0, sizeof(acb->reserved2)); 826d00efe3fSMike Christie memset(acb->reserved3, 0, sizeof(acb->reserved3)); 827d00efe3fSMike Christie memset(acb->reserved4, 0, sizeof(acb->reserved4)); 828d00efe3fSMike Christie memset(acb->reserved5, 0, sizeof(acb->reserved5)); 829d00efe3fSMike Christie memset(acb->reserved6, 0, sizeof(acb->reserved6)); 830d00efe3fSMike Christie memset(acb->reserved7, 0, sizeof(acb->reserved7)); 831d00efe3fSMike Christie memset(acb->reserved8, 0, sizeof(acb->reserved8)); 832d00efe3fSMike Christie memset(acb->reserved9, 0, sizeof(acb->reserved9)); 833d00efe3fSMike Christie memset(acb->reserved10, 0, sizeof(acb->reserved10)); 834d00efe3fSMike Christie memset(acb->reserved11, 0, sizeof(acb->reserved11)); 835d00efe3fSMike Christie memset(acb->reserved12, 0, sizeof(acb->reserved12)); 836d00efe3fSMike Christie memset(acb->reserved13, 0, sizeof(acb->reserved13)); 837d00efe3fSMike Christie memset(acb->reserved14, 0, sizeof(acb->reserved14)); 838d00efe3fSMike Christie memset(acb->reserved15, 0, sizeof(acb->reserved15)); 839d00efe3fSMike Christie } 840d00efe3fSMike Christie 841d00efe3fSMike Christie static int 842d00efe3fSMike Christie qla4xxx_iface_set_param(struct Scsi_Host *shost, char *data, int count) 843d00efe3fSMike Christie { 844d00efe3fSMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 845d00efe3fSMike Christie int rval = 0; 846d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param = NULL; 847d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb = NULL; 848d00efe3fSMike Christie dma_addr_t init_fw_cb_dma; 849d00efe3fSMike Christie uint32_t mbox_cmd[MBOX_REG_COUNT]; 850d00efe3fSMike Christie uint32_t mbox_sts[MBOX_REG_COUNT]; 851d00efe3fSMike Christie uint32_t total_param_count; 852d00efe3fSMike Christie uint32_t length; 853d00efe3fSMike Christie 854d00efe3fSMike Christie init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 855d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 856d00efe3fSMike Christie &init_fw_cb_dma, GFP_KERNEL); 857d00efe3fSMike Christie if (!init_fw_cb) { 858d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 859d00efe3fSMike Christie __func__); 860d00efe3fSMike Christie return -ENOMEM; 861d00efe3fSMike Christie } 862d00efe3fSMike Christie 863d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 864d00efe3fSMike Christie memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 865d00efe3fSMike Christie memset(&mbox_sts, 0, sizeof(mbox_sts)); 866d00efe3fSMike Christie 867d00efe3fSMike Christie if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 868d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 869d00efe3fSMike Christie rval = -EIO; 870d00efe3fSMike Christie goto exit_init_fw_cb; 871d00efe3fSMike Christie } 872d00efe3fSMike Christie 873d00efe3fSMike Christie total_param_count = count; 874d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *)data; 875d00efe3fSMike Christie 876d00efe3fSMike Christie for ( ; total_param_count != 0; total_param_count--) { 877d00efe3fSMike Christie length = iface_param->len; 878d00efe3fSMike Christie 879d00efe3fSMike Christie if (iface_param->param_type != ISCSI_NET_PARAM) 880d00efe3fSMike Christie continue; 881d00efe3fSMike Christie 882d00efe3fSMike Christie switch (iface_param->iface_type) { 883d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV4: 884d00efe3fSMike Christie switch (iface_param->iface_num) { 885d00efe3fSMike Christie case 0: 886d00efe3fSMike Christie qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 887d00efe3fSMike Christie break; 888d00efe3fSMike Christie default: 889d00efe3fSMike Christie /* Cannot have more than one IPv4 interface */ 890d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 891d00efe3fSMike Christie "number = %d\n", 892d00efe3fSMike Christie iface_param->iface_num); 893d00efe3fSMike Christie break; 894d00efe3fSMike Christie } 895d00efe3fSMike Christie break; 896d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV6: 897d00efe3fSMike Christie switch (iface_param->iface_num) { 898d00efe3fSMike Christie case 0: 899d00efe3fSMike Christie case 1: 900d00efe3fSMike Christie qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 901d00efe3fSMike Christie break; 902d00efe3fSMike Christie default: 903d00efe3fSMike Christie /* Cannot have more than two IPv6 interface */ 904d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 905d00efe3fSMike Christie "number = %d\n", 906d00efe3fSMike Christie iface_param->iface_num); 907d00efe3fSMike Christie break; 908d00efe3fSMike Christie } 909d00efe3fSMike Christie break; 910d00efe3fSMike Christie default: 911d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 912d00efe3fSMike Christie break; 913d00efe3fSMike Christie } 914d00efe3fSMike Christie 915d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *) 916d00efe3fSMike Christie ((uint8_t *)iface_param + 917d00efe3fSMike Christie sizeof(struct iscsi_iface_param_info) + length); 918d00efe3fSMike Christie } 919d00efe3fSMike Christie 920d00efe3fSMike Christie init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 921d00efe3fSMike Christie 922d00efe3fSMike Christie rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 923d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 924d00efe3fSMike Christie FLASH_OPT_RMW_COMMIT); 925d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 926d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 927d00efe3fSMike Christie __func__); 928d00efe3fSMike Christie rval = -EIO; 929d00efe3fSMike Christie goto exit_init_fw_cb; 930d00efe3fSMike Christie } 931d00efe3fSMike Christie 932d00efe3fSMike Christie qla4xxx_disable_acb(ha); 933d00efe3fSMike Christie 934d00efe3fSMike Christie qla4xxx_initcb_to_acb(init_fw_cb); 935d00efe3fSMike Christie 936d00efe3fSMike Christie rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 937d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 938d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 939d00efe3fSMike Christie __func__); 940d00efe3fSMike Christie rval = -EIO; 941d00efe3fSMike Christie goto exit_init_fw_cb; 942d00efe3fSMike Christie } 943d00efe3fSMike Christie 944d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 945d00efe3fSMike Christie qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 946d00efe3fSMike Christie init_fw_cb_dma); 947d00efe3fSMike Christie 948d00efe3fSMike Christie exit_init_fw_cb: 949d00efe3fSMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 950d00efe3fSMike Christie init_fw_cb, init_fw_cb_dma); 951d00efe3fSMike Christie 952d00efe3fSMike Christie return rval; 953d00efe3fSMike Christie } 954d00efe3fSMike Christie 955b3a271a9SManish Rangankar static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 956afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 957afaf5a2dSDavid Somayajulu { 958b3a271a9SManish Rangankar struct iscsi_conn *conn; 959b3a271a9SManish Rangankar struct qla_conn *qla_conn; 960b3a271a9SManish Rangankar struct sockaddr *dst_addr; 961b3a271a9SManish Rangankar int len = 0; 962afaf5a2dSDavid Somayajulu 963b3a271a9SManish Rangankar conn = cls_conn->dd_data; 964b3a271a9SManish Rangankar qla_conn = conn->dd_data; 965b3a271a9SManish Rangankar dst_addr = &qla_conn->qla_ep->dst_addr; 966afaf5a2dSDavid Somayajulu 967afaf5a2dSDavid Somayajulu switch (param) { 968afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_PORT: 969afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_ADDRESS: 970b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 971b3a271a9SManish Rangankar dst_addr, param, buf); 972afaf5a2dSDavid Somayajulu default: 973b3a271a9SManish Rangankar return iscsi_conn_get_param(cls_conn, param, buf); 974afaf5a2dSDavid Somayajulu } 975afaf5a2dSDavid Somayajulu 976afaf5a2dSDavid Somayajulu return len; 977b3a271a9SManish Rangankar 978afaf5a2dSDavid Somayajulu } 979afaf5a2dSDavid Somayajulu 980b3a271a9SManish Rangankar static struct iscsi_cls_session * 981b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, 982b3a271a9SManish Rangankar uint16_t cmds_max, uint16_t qdepth, 983b3a271a9SManish Rangankar uint32_t initial_cmdsn) 984b3a271a9SManish Rangankar { 985b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 986b3a271a9SManish Rangankar struct scsi_qla_host *ha; 987b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 988b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 989b3a271a9SManish Rangankar uint32_t ddb_index; 990b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 991b3a271a9SManish Rangankar struct iscsi_session *sess; 992b3a271a9SManish Rangankar struct sockaddr *dst_addr; 993b3a271a9SManish Rangankar int ret; 994b3a271a9SManish Rangankar 995b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 996b3a271a9SManish Rangankar if (!ep) { 997b3a271a9SManish Rangankar printk(KERN_ERR "qla4xxx: missing ep.\n"); 998b3a271a9SManish Rangankar return NULL; 999b3a271a9SManish Rangankar } 1000b3a271a9SManish Rangankar 1001b3a271a9SManish Rangankar qla_ep = ep->dd_data; 1002b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1003b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 1004b3a271a9SManish Rangankar get_ddb_index: 1005b3a271a9SManish Rangankar ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 1006b3a271a9SManish Rangankar 1007b3a271a9SManish Rangankar if (ddb_index >= MAX_DDB_ENTRIES) { 1008b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 1009b3a271a9SManish Rangankar "Free DDB index not available\n")); 1010b3a271a9SManish Rangankar return NULL; 1011b3a271a9SManish Rangankar } 1012b3a271a9SManish Rangankar 1013b3a271a9SManish Rangankar if (test_and_set_bit(ddb_index, ha->ddb_idx_map)) 1014b3a271a9SManish Rangankar goto get_ddb_index; 1015b3a271a9SManish Rangankar 1016b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 1017b3a271a9SManish Rangankar "Found a free DDB index at %d\n", ddb_index)); 1018b3a271a9SManish Rangankar ret = qla4xxx_req_ddb_entry(ha, ddb_index, &mbx_sts); 1019b3a271a9SManish Rangankar if (ret == QLA_ERROR) { 1020b3a271a9SManish Rangankar if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 1021b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 1022b3a271a9SManish Rangankar "DDB index = %d not available trying next\n", 1023b3a271a9SManish Rangankar ddb_index); 1024b3a271a9SManish Rangankar goto get_ddb_index; 1025b3a271a9SManish Rangankar } 1026b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 1027b3a271a9SManish Rangankar "Free FW DDB not available\n")); 1028b3a271a9SManish Rangankar return NULL; 1029b3a271a9SManish Rangankar } 1030b3a271a9SManish Rangankar 1031b3a271a9SManish Rangankar cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 1032b3a271a9SManish Rangankar cmds_max, sizeof(struct ddb_entry), 1033b3a271a9SManish Rangankar sizeof(struct ql4_task_data), 1034b3a271a9SManish Rangankar initial_cmdsn, ddb_index); 1035b3a271a9SManish Rangankar if (!cls_sess) 1036b3a271a9SManish Rangankar return NULL; 1037b3a271a9SManish Rangankar 1038b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1039b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1040b3a271a9SManish Rangankar ddb_entry->fw_ddb_index = ddb_index; 1041b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 1042b3a271a9SManish Rangankar ddb_entry->ha = ha; 1043b3a271a9SManish Rangankar ddb_entry->sess = cls_sess; 1044b3a271a9SManish Rangankar cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 1045b3a271a9SManish Rangankar ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1046b3a271a9SManish Rangankar ha->tot_ddbs++; 1047b3a271a9SManish Rangankar 1048b3a271a9SManish Rangankar return cls_sess; 1049b3a271a9SManish Rangankar } 1050b3a271a9SManish Rangankar 1051b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 1052b3a271a9SManish Rangankar { 1053b3a271a9SManish Rangankar struct iscsi_session *sess; 1054b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1055b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1056b3a271a9SManish Rangankar unsigned long flags; 1057b3a271a9SManish Rangankar 1058b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1059b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1060b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1061b3a271a9SManish Rangankar ha = ddb_entry->ha; 1062b3a271a9SManish Rangankar 1063b3a271a9SManish Rangankar spin_lock_irqsave(&ha->hardware_lock, flags); 1064b3a271a9SManish Rangankar qla4xxx_free_ddb(ha, ddb_entry); 1065b3a271a9SManish Rangankar spin_unlock_irqrestore(&ha->hardware_lock, flags); 1066b3a271a9SManish Rangankar iscsi_session_teardown(cls_sess); 1067b3a271a9SManish Rangankar } 1068b3a271a9SManish Rangankar 1069b3a271a9SManish Rangankar static struct iscsi_cls_conn * 1070b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 1071b3a271a9SManish Rangankar { 1072b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1073b3a271a9SManish Rangankar struct iscsi_session *sess; 1074b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1075b3a271a9SManish Rangankar 1076b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1077b3a271a9SManish Rangankar cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 1078b3a271a9SManish Rangankar conn_idx); 1079b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1080b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1081b3a271a9SManish Rangankar ddb_entry->conn = cls_conn; 1082b3a271a9SManish Rangankar 1083b3a271a9SManish Rangankar return cls_conn; 1084b3a271a9SManish Rangankar } 1085b3a271a9SManish Rangankar 1086b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 1087b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 1088b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading) 1089b3a271a9SManish Rangankar { 1090b3a271a9SManish Rangankar struct iscsi_conn *conn; 1091b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1092b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 1093b3a271a9SManish Rangankar 1094b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1095b3a271a9SManish Rangankar 1096b3a271a9SManish Rangankar if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 1097b3a271a9SManish Rangankar return -EINVAL; 1098b3a271a9SManish Rangankar ep = iscsi_lookup_endpoint(transport_fd); 1099b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1100b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1101b3a271a9SManish Rangankar qla_conn->qla_ep = ep->dd_data; 1102b3a271a9SManish Rangankar return 0; 1103b3a271a9SManish Rangankar } 1104b3a271a9SManish Rangankar 1105b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 1106b3a271a9SManish Rangankar { 1107b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1108b3a271a9SManish Rangankar struct iscsi_session *sess; 1109b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1110b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1111b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 1112b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1113b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 1114b3a271a9SManish Rangankar int ret = 0; 1115b3a271a9SManish Rangankar int status = QLA_SUCCESS; 1116b3a271a9SManish Rangankar 1117b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1118b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1119b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1120b3a271a9SManish Rangankar ha = ddb_entry->ha; 1121b3a271a9SManish Rangankar 1122b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1123b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1124b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1125b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1126b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 1127b3a271a9SManish Rangankar return -ENOMEM; 1128b3a271a9SManish Rangankar } 1129b3a271a9SManish Rangankar 1130b3a271a9SManish Rangankar ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 1131b3a271a9SManish Rangankar if (ret) { 1132b3a271a9SManish Rangankar /* If iscsid is stopped and started then no need to do 1133b3a271a9SManish Rangankar * set param again since ddb state will be already 1134b3a271a9SManish Rangankar * active and FW does not allow set ddb to an 1135b3a271a9SManish Rangankar * active session. 1136b3a271a9SManish Rangankar */ 1137b3a271a9SManish Rangankar if (mbx_sts) 1138b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == 1139b3a271a9SManish Rangankar DDB_DS_SESSION_ACTIVE) 1140b3a271a9SManish Rangankar goto exit_set_param; 1141b3a271a9SManish Rangankar 1142b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 1143b3a271a9SManish Rangankar __func__, ddb_entry->fw_ddb_index); 1144b3a271a9SManish Rangankar goto exit_conn_start; 1145b3a271a9SManish Rangankar } 1146b3a271a9SManish Rangankar 1147b3a271a9SManish Rangankar status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1148b3a271a9SManish Rangankar if (status == QLA_ERROR) { 11490e7e8501SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 11500e7e8501SManish Rangankar sess->targetname); 1151b3a271a9SManish Rangankar ret = -EINVAL; 1152b3a271a9SManish Rangankar goto exit_conn_start; 1153b3a271a9SManish Rangankar } 1154b3a271a9SManish Rangankar 1155b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1156b3a271a9SManish Rangankar 1157b3a271a9SManish Rangankar exit_set_param: 1158b3a271a9SManish Rangankar iscsi_conn_start(cls_conn); 1159b3a271a9SManish Rangankar ret = 0; 1160b3a271a9SManish Rangankar 1161b3a271a9SManish Rangankar exit_conn_start: 1162b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1163b3a271a9SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 1164b3a271a9SManish Rangankar return ret; 1165b3a271a9SManish Rangankar } 1166b3a271a9SManish Rangankar 1167b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 1168b3a271a9SManish Rangankar { 1169b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1170b3a271a9SManish Rangankar struct iscsi_session *sess; 1171b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1172b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1173b3a271a9SManish Rangankar int options; 1174b3a271a9SManish Rangankar 1175b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1176b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1177b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1178b3a271a9SManish Rangankar ha = ddb_entry->ha; 1179b3a271a9SManish Rangankar 1180b3a271a9SManish Rangankar options = LOGOUT_OPTION_CLOSE_SESSION; 1181b3a271a9SManish Rangankar if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 1182b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 1183b3a271a9SManish Rangankar else 1184b3a271a9SManish Rangankar qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 1185b3a271a9SManish Rangankar 1186b3a271a9SManish Rangankar /* 1187b3a271a9SManish Rangankar * Clear the DDB bit so that next login can use the bit 1188b3a271a9SManish Rangankar * if FW is not clearing the DDB entry then set DDB will fail anyways 1189b3a271a9SManish Rangankar */ 1190b3a271a9SManish Rangankar clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 1191b3a271a9SManish Rangankar } 1192b3a271a9SManish Rangankar 1193b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata) 1194b3a271a9SManish Rangankar { 1195b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1196b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1197b3a271a9SManish Rangankar struct passthru_status *sts; 1198b3a271a9SManish Rangankar struct iscsi_task *task; 1199b3a271a9SManish Rangankar struct iscsi_hdr *hdr; 1200b3a271a9SManish Rangankar uint8_t *data; 1201b3a271a9SManish Rangankar uint32_t data_len; 1202b3a271a9SManish Rangankar struct iscsi_conn *conn; 1203b3a271a9SManish Rangankar int hdr_len; 1204b3a271a9SManish Rangankar itt_t itt; 1205b3a271a9SManish Rangankar 1206b3a271a9SManish Rangankar task_data = container_of(wdata, struct ql4_task_data, task_work); 1207b3a271a9SManish Rangankar ha = task_data->ha; 1208b3a271a9SManish Rangankar task = task_data->task; 1209b3a271a9SManish Rangankar sts = &task_data->sts; 1210b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1211b3a271a9SManish Rangankar 1212b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Status returned\n")); 1213b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(sts, 64)); 1214b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Response buffer")); 1215b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 1216b3a271a9SManish Rangankar 1217b3a271a9SManish Rangankar conn = task->conn; 1218b3a271a9SManish Rangankar 1219b3a271a9SManish Rangankar switch (sts->completionStatus) { 1220b3a271a9SManish Rangankar case PASSTHRU_STATUS_COMPLETE: 1221b3a271a9SManish Rangankar hdr = (struct iscsi_hdr *)task_data->resp_buffer; 1222b3a271a9SManish Rangankar /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 1223b3a271a9SManish Rangankar itt = sts->handle; 1224b3a271a9SManish Rangankar hdr->itt = itt; 1225b3a271a9SManish Rangankar data = task_data->resp_buffer + hdr_len; 1226b3a271a9SManish Rangankar data_len = task_data->resp_len - hdr_len; 1227b3a271a9SManish Rangankar iscsi_complete_pdu(conn, hdr, data, data_len); 1228b3a271a9SManish Rangankar break; 1229b3a271a9SManish Rangankar default: 1230b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 1231b3a271a9SManish Rangankar sts->completionStatus); 1232b3a271a9SManish Rangankar break; 1233b3a271a9SManish Rangankar } 1234b3a271a9SManish Rangankar return; 1235b3a271a9SManish Rangankar } 1236b3a271a9SManish Rangankar 1237b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 1238b3a271a9SManish Rangankar { 1239b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1240b3a271a9SManish Rangankar struct iscsi_session *sess; 1241b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1242b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1243b3a271a9SManish Rangankar int hdr_len; 1244b3a271a9SManish Rangankar 1245b3a271a9SManish Rangankar sess = task->conn->session; 1246b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1247b3a271a9SManish Rangankar ha = ddb_entry->ha; 1248b3a271a9SManish Rangankar task_data = task->dd_data; 1249b3a271a9SManish Rangankar memset(task_data, 0, sizeof(struct ql4_task_data)); 1250b3a271a9SManish Rangankar 1251b3a271a9SManish Rangankar if (task->sc) { 1252b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 1253b3a271a9SManish Rangankar "%s: SCSI Commands not implemented\n", __func__); 1254b3a271a9SManish Rangankar return -EINVAL; 1255b3a271a9SManish Rangankar } 1256b3a271a9SManish Rangankar 1257b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1258b3a271a9SManish Rangankar task_data->ha = ha; 1259b3a271a9SManish Rangankar task_data->task = task; 1260b3a271a9SManish Rangankar 1261b3a271a9SManish Rangankar if (task->data_count) { 1262b3a271a9SManish Rangankar task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 1263b3a271a9SManish Rangankar task->data_count, 1264b3a271a9SManish Rangankar PCI_DMA_TODEVICE); 1265b3a271a9SManish Rangankar } 1266b3a271a9SManish Rangankar 1267b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1268b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1269b3a271a9SManish Rangankar 1270b3a271a9SManish Rangankar task_data->resp_len = task->conn->max_recv_dlength; 1271b3a271a9SManish Rangankar task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 1272b3a271a9SManish Rangankar task_data->resp_len, 1273b3a271a9SManish Rangankar &task_data->resp_dma, 1274b3a271a9SManish Rangankar GFP_ATOMIC); 1275b3a271a9SManish Rangankar if (!task_data->resp_buffer) 1276b3a271a9SManish Rangankar goto exit_alloc_pdu; 1277b3a271a9SManish Rangankar 1278b3a271a9SManish Rangankar task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 1279b3a271a9SManish Rangankar task->data_count + hdr_len, 1280b3a271a9SManish Rangankar &task_data->req_dma, 1281b3a271a9SManish Rangankar GFP_ATOMIC); 1282b3a271a9SManish Rangankar if (!task_data->req_buffer) 1283b3a271a9SManish Rangankar goto exit_alloc_pdu; 1284b3a271a9SManish Rangankar 1285b3a271a9SManish Rangankar task->hdr = task_data->req_buffer; 1286b3a271a9SManish Rangankar 1287b3a271a9SManish Rangankar INIT_WORK(&task_data->task_work, qla4xxx_task_work); 1288b3a271a9SManish Rangankar 1289b3a271a9SManish Rangankar return 0; 1290b3a271a9SManish Rangankar 1291b3a271a9SManish Rangankar exit_alloc_pdu: 1292b3a271a9SManish Rangankar if (task_data->resp_buffer) 1293b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1294b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1295b3a271a9SManish Rangankar 1296b3a271a9SManish Rangankar if (task_data->req_buffer) 1297b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task->data_count + hdr_len, 1298b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1299b3a271a9SManish Rangankar return -ENOMEM; 1300b3a271a9SManish Rangankar } 1301b3a271a9SManish Rangankar 1302b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *task) 1303b3a271a9SManish Rangankar { 1304b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1305b3a271a9SManish Rangankar struct iscsi_session *sess; 1306b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1307b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1308b3a271a9SManish Rangankar int hdr_len; 1309b3a271a9SManish Rangankar 1310b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1311b3a271a9SManish Rangankar sess = task->conn->session; 1312b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1313b3a271a9SManish Rangankar ha = ddb_entry->ha; 1314b3a271a9SManish Rangankar task_data = task->dd_data; 1315b3a271a9SManish Rangankar 1316b3a271a9SManish Rangankar if (task->data_count) { 1317b3a271a9SManish Rangankar dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 1318b3a271a9SManish Rangankar task->data_count, PCI_DMA_TODEVICE); 1319b3a271a9SManish Rangankar } 1320b3a271a9SManish Rangankar 1321b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1322b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1323b3a271a9SManish Rangankar 1324b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1325b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1326b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task->data_count + hdr_len, 1327b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1328b3a271a9SManish Rangankar return; 1329b3a271a9SManish Rangankar } 1330b3a271a9SManish Rangankar 1331b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *task) 1332b3a271a9SManish Rangankar { 1333b3a271a9SManish Rangankar struct scsi_cmnd *sc = task->sc; 1334b3a271a9SManish Rangankar struct iscsi_session *sess = task->conn->session; 1335b3a271a9SManish Rangankar struct ddb_entry *ddb_entry = sess->dd_data; 1336b3a271a9SManish Rangankar struct scsi_qla_host *ha = ddb_entry->ha; 1337b3a271a9SManish Rangankar 1338b3a271a9SManish Rangankar if (!sc) 1339b3a271a9SManish Rangankar return qla4xxx_send_passthru0(task); 1340b3a271a9SManish Rangankar 1341b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 1342b3a271a9SManish Rangankar __func__); 1343b3a271a9SManish Rangankar return -ENOSYS; 1344b3a271a9SManish Rangankar } 1345b3a271a9SManish Rangankar 1346b3a271a9SManish Rangankar void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 1347b3a271a9SManish Rangankar struct ddb_entry *ddb_entry) 1348b3a271a9SManish Rangankar { 1349b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1350b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1351b3a271a9SManish Rangankar struct iscsi_session *sess; 1352b3a271a9SManish Rangankar struct iscsi_conn *conn; 1353b3a271a9SManish Rangankar uint32_t ddb_state; 1354b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1355b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 1356b3a271a9SManish Rangankar 1357b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1358b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1359b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1360b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1361b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 1362b3a271a9SManish Rangankar return; 1363b3a271a9SManish Rangankar } 1364b3a271a9SManish Rangankar 1365b3a271a9SManish Rangankar if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 1366b3a271a9SManish Rangankar fw_ddb_entry_dma, NULL, NULL, &ddb_state, 1367b3a271a9SManish Rangankar NULL, NULL, NULL) == QLA_ERROR) { 1368b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 1369b3a271a9SManish Rangankar "get_ddb_entry for fw_ddb_index %d\n", 1370b3a271a9SManish Rangankar ha->host_no, __func__, 1371b3a271a9SManish Rangankar ddb_entry->fw_ddb_index)); 1372b3a271a9SManish Rangankar return; 1373b3a271a9SManish Rangankar } 1374b3a271a9SManish Rangankar 1375b3a271a9SManish Rangankar cls_sess = ddb_entry->sess; 1376b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1377b3a271a9SManish Rangankar 1378b3a271a9SManish Rangankar cls_conn = ddb_entry->conn; 1379b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1380b3a271a9SManish Rangankar 1381b3a271a9SManish Rangankar /* Update params */ 1382b3a271a9SManish Rangankar conn->max_recv_dlength = BYTE_UNITS * 1383b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 1384b3a271a9SManish Rangankar 1385b3a271a9SManish Rangankar conn->max_xmit_dlength = BYTE_UNITS * 1386b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 1387b3a271a9SManish Rangankar 1388b3a271a9SManish Rangankar sess->initial_r2t_en = 1389b3a271a9SManish Rangankar (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1390b3a271a9SManish Rangankar 1391b3a271a9SManish Rangankar sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 1392b3a271a9SManish Rangankar 1393b3a271a9SManish Rangankar sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1394b3a271a9SManish Rangankar 1395b3a271a9SManish Rangankar sess->first_burst = BYTE_UNITS * 1396b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 1397b3a271a9SManish Rangankar 1398b3a271a9SManish Rangankar sess->max_burst = BYTE_UNITS * 1399b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 1400b3a271a9SManish Rangankar 1401b3a271a9SManish Rangankar sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 1402b3a271a9SManish Rangankar 1403b3a271a9SManish Rangankar sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 1404b3a271a9SManish Rangankar 1405b3a271a9SManish Rangankar sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 1406b3a271a9SManish Rangankar 1407b3a271a9SManish Rangankar memcpy(sess->initiatorname, ha->name_string, 1408b3a271a9SManish Rangankar min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 1409b3a271a9SManish Rangankar } 1410b3a271a9SManish Rangankar 1411afaf5a2dSDavid Somayajulu /* 1412afaf5a2dSDavid Somayajulu * Timer routines 1413afaf5a2dSDavid Somayajulu */ 1414afaf5a2dSDavid Somayajulu 1415afaf5a2dSDavid Somayajulu static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 1416afaf5a2dSDavid Somayajulu unsigned long interval) 1417afaf5a2dSDavid Somayajulu { 1418afaf5a2dSDavid Somayajulu DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 1419afaf5a2dSDavid Somayajulu __func__, ha->host->host_no)); 1420afaf5a2dSDavid Somayajulu init_timer(&ha->timer); 1421afaf5a2dSDavid Somayajulu ha->timer.expires = jiffies + interval * HZ; 1422afaf5a2dSDavid Somayajulu ha->timer.data = (unsigned long)ha; 1423afaf5a2dSDavid Somayajulu ha->timer.function = (void (*)(unsigned long))func; 1424afaf5a2dSDavid Somayajulu add_timer(&ha->timer); 1425afaf5a2dSDavid Somayajulu ha->timer_active = 1; 1426afaf5a2dSDavid Somayajulu } 1427afaf5a2dSDavid Somayajulu 1428afaf5a2dSDavid Somayajulu static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 1429afaf5a2dSDavid Somayajulu { 1430afaf5a2dSDavid Somayajulu del_timer_sync(&ha->timer); 1431afaf5a2dSDavid Somayajulu ha->timer_active = 0; 1432afaf5a2dSDavid Somayajulu } 1433afaf5a2dSDavid Somayajulu 1434afaf5a2dSDavid Somayajulu /*** 1435b3a271a9SManish Rangankar * qla4xxx_mark_device_missing - blocks the session 1436b3a271a9SManish Rangankar * @cls_session: Pointer to the session to be blocked 1437afaf5a2dSDavid Somayajulu * @ddb_entry: Pointer to device database entry 1438afaf5a2dSDavid Somayajulu * 1439f4f5df23SVikas Chaudhary * This routine marks a device missing and close connection. 1440afaf5a2dSDavid Somayajulu **/ 1441b3a271a9SManish Rangankar void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 1442afaf5a2dSDavid Somayajulu { 1443b3a271a9SManish Rangankar iscsi_block_session(cls_session); 1444afaf5a2dSDavid Somayajulu } 1445afaf5a2dSDavid Somayajulu 1446f4f5df23SVikas Chaudhary /** 1447f4f5df23SVikas Chaudhary * qla4xxx_mark_all_devices_missing - mark all devices as missing. 1448f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1449f4f5df23SVikas Chaudhary * 1450f4f5df23SVikas Chaudhary * This routine marks a device missing and resets the relogin retry count. 1451f4f5df23SVikas Chaudhary **/ 1452f4f5df23SVikas Chaudhary void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 1453f4f5df23SVikas Chaudhary { 1454b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 1455f4f5df23SVikas Chaudhary } 1456f4f5df23SVikas Chaudhary 1457afaf5a2dSDavid Somayajulu static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 1458afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, 14598f0722caSVikas Chaudhary struct scsi_cmnd *cmd) 1460afaf5a2dSDavid Somayajulu { 1461afaf5a2dSDavid Somayajulu struct srb *srb; 1462afaf5a2dSDavid Somayajulu 1463afaf5a2dSDavid Somayajulu srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 1464afaf5a2dSDavid Somayajulu if (!srb) 1465afaf5a2dSDavid Somayajulu return srb; 1466afaf5a2dSDavid Somayajulu 146709a0f719SVikas Chaudhary kref_init(&srb->srb_ref); 1468afaf5a2dSDavid Somayajulu srb->ha = ha; 1469afaf5a2dSDavid Somayajulu srb->ddb = ddb_entry; 1470afaf5a2dSDavid Somayajulu srb->cmd = cmd; 1471afaf5a2dSDavid Somayajulu srb->flags = 0; 14725369887aSVikas Chaudhary CMD_SP(cmd) = (void *)srb; 1473afaf5a2dSDavid Somayajulu 1474afaf5a2dSDavid Somayajulu return srb; 1475afaf5a2dSDavid Somayajulu } 1476afaf5a2dSDavid Somayajulu 1477afaf5a2dSDavid Somayajulu static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 1478afaf5a2dSDavid Somayajulu { 1479afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 1480afaf5a2dSDavid Somayajulu 1481afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 14825f7186c8SFUJITA Tomonori scsi_dma_unmap(cmd); 1483afaf5a2dSDavid Somayajulu srb->flags &= ~SRB_DMA_VALID; 1484afaf5a2dSDavid Somayajulu } 14855369887aSVikas Chaudhary CMD_SP(cmd) = NULL; 1486afaf5a2dSDavid Somayajulu } 1487afaf5a2dSDavid Somayajulu 148809a0f719SVikas Chaudhary void qla4xxx_srb_compl(struct kref *ref) 1489afaf5a2dSDavid Somayajulu { 149009a0f719SVikas Chaudhary struct srb *srb = container_of(ref, struct srb, srb_ref); 1491afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 149209a0f719SVikas Chaudhary struct scsi_qla_host *ha = srb->ha; 1493afaf5a2dSDavid Somayajulu 1494afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1495afaf5a2dSDavid Somayajulu 1496afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1497afaf5a2dSDavid Somayajulu 1498afaf5a2dSDavid Somayajulu cmd->scsi_done(cmd); 1499afaf5a2dSDavid Somayajulu } 1500afaf5a2dSDavid Somayajulu 1501afaf5a2dSDavid Somayajulu /** 1502afaf5a2dSDavid Somayajulu * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 15038f0722caSVikas Chaudhary * @host: scsi host 1504afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 1505afaf5a2dSDavid Somayajulu * 1506afaf5a2dSDavid Somayajulu * Remarks: 1507afaf5a2dSDavid Somayajulu * This routine is invoked by Linux to send a SCSI command to the driver. 1508afaf5a2dSDavid Somayajulu * The mid-level driver tries to ensure that queuecommand never gets 1509afaf5a2dSDavid Somayajulu * invoked concurrently with itself or the interrupt handler (although 1510afaf5a2dSDavid Somayajulu * the interrupt handler may call this routine as part of request- 1511afaf5a2dSDavid Somayajulu * completion handling). Unfortunely, it sometimes calls the scheduler 1512afaf5a2dSDavid Somayajulu * in interrupt context which is a big NO! NO!. 1513afaf5a2dSDavid Somayajulu **/ 15148f0722caSVikas Chaudhary static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 1515afaf5a2dSDavid Somayajulu { 15168f0722caSVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(host); 1517afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 15187fb1921bSMike Christie struct iscsi_cls_session *sess = ddb_entry->sess; 1519afaf5a2dSDavid Somayajulu struct srb *srb; 1520afaf5a2dSDavid Somayajulu int rval; 1521afaf5a2dSDavid Somayajulu 15222232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 15232232be0dSLalit Chandivade if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 15242232be0dSLalit Chandivade cmd->result = DID_NO_CONNECT << 16; 15252232be0dSLalit Chandivade else 15262232be0dSLalit Chandivade cmd->result = DID_REQUEUE << 16; 15272232be0dSLalit Chandivade goto qc_fail_command; 15282232be0dSLalit Chandivade } 15292232be0dSLalit Chandivade 15307fb1921bSMike Christie if (!sess) { 15317fb1921bSMike Christie cmd->result = DID_IMM_RETRY << 16; 15327fb1921bSMike Christie goto qc_fail_command; 15337fb1921bSMike Christie } 15347fb1921bSMike Christie 15357fb1921bSMike Christie rval = iscsi_session_chkready(sess); 15367fb1921bSMike Christie if (rval) { 15377fb1921bSMike Christie cmd->result = rval; 15387fb1921bSMike Christie goto qc_fail_command; 15397fb1921bSMike Christie } 15407fb1921bSMike Christie 1541f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1542f4f5df23SVikas Chaudhary test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1543f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1544f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1545f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 1546f4f5df23SVikas Chaudhary !test_bit(AF_ONLINE, &ha->flags) || 1547b3a271a9SManish Rangankar !test_bit(AF_LINK_UP, &ha->flags) || 1548f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 1549477ffb9dSDavid C Somayajulu goto qc_host_busy; 1550477ffb9dSDavid C Somayajulu 15518f0722caSVikas Chaudhary srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 1552afaf5a2dSDavid Somayajulu if (!srb) 15538f0722caSVikas Chaudhary goto qc_host_busy; 1554afaf5a2dSDavid Somayajulu 1555afaf5a2dSDavid Somayajulu rval = qla4xxx_send_command_to_isp(ha, srb); 1556afaf5a2dSDavid Somayajulu if (rval != QLA_SUCCESS) 1557afaf5a2dSDavid Somayajulu goto qc_host_busy_free_sp; 1558afaf5a2dSDavid Somayajulu 1559afaf5a2dSDavid Somayajulu return 0; 1560afaf5a2dSDavid Somayajulu 1561afaf5a2dSDavid Somayajulu qc_host_busy_free_sp: 1562afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1563afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1564afaf5a2dSDavid Somayajulu 1565afaf5a2dSDavid Somayajulu qc_host_busy: 1566afaf5a2dSDavid Somayajulu return SCSI_MLQUEUE_HOST_BUSY; 1567afaf5a2dSDavid Somayajulu 1568afaf5a2dSDavid Somayajulu qc_fail_command: 15698f0722caSVikas Chaudhary cmd->scsi_done(cmd); 1570afaf5a2dSDavid Somayajulu 1571afaf5a2dSDavid Somayajulu return 0; 1572afaf5a2dSDavid Somayajulu } 1573afaf5a2dSDavid Somayajulu 1574afaf5a2dSDavid Somayajulu /** 1575afaf5a2dSDavid Somayajulu * qla4xxx_mem_free - frees memory allocated to adapter 1576afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1577afaf5a2dSDavid Somayajulu * 1578afaf5a2dSDavid Somayajulu * Frees memory previously allocated by qla4xxx_mem_alloc 1579afaf5a2dSDavid Somayajulu **/ 1580afaf5a2dSDavid Somayajulu static void qla4xxx_mem_free(struct scsi_qla_host *ha) 1581afaf5a2dSDavid Somayajulu { 1582afaf5a2dSDavid Somayajulu if (ha->queues) 1583afaf5a2dSDavid Somayajulu dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 1584afaf5a2dSDavid Somayajulu ha->queues_dma); 1585afaf5a2dSDavid Somayajulu 1586afaf5a2dSDavid Somayajulu ha->queues_len = 0; 1587afaf5a2dSDavid Somayajulu ha->queues = NULL; 1588afaf5a2dSDavid Somayajulu ha->queues_dma = 0; 1589afaf5a2dSDavid Somayajulu ha->request_ring = NULL; 1590afaf5a2dSDavid Somayajulu ha->request_dma = 0; 1591afaf5a2dSDavid Somayajulu ha->response_ring = NULL; 1592afaf5a2dSDavid Somayajulu ha->response_dma = 0; 1593afaf5a2dSDavid Somayajulu ha->shadow_regs = NULL; 1594afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = 0; 1595afaf5a2dSDavid Somayajulu 1596afaf5a2dSDavid Somayajulu /* Free srb pool. */ 1597afaf5a2dSDavid Somayajulu if (ha->srb_mempool) 1598afaf5a2dSDavid Somayajulu mempool_destroy(ha->srb_mempool); 1599afaf5a2dSDavid Somayajulu 1600afaf5a2dSDavid Somayajulu ha->srb_mempool = NULL; 1601afaf5a2dSDavid Somayajulu 1602b3a271a9SManish Rangankar if (ha->chap_dma_pool) 1603b3a271a9SManish Rangankar dma_pool_destroy(ha->chap_dma_pool); 1604b3a271a9SManish Rangankar 1605afaf5a2dSDavid Somayajulu /* release io space registers */ 1606f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1607f4f5df23SVikas Chaudhary if (ha->nx_pcibase) 1608f4f5df23SVikas Chaudhary iounmap( 1609f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)ha->nx_pcibase); 1610f4f5df23SVikas Chaudhary } else if (ha->reg) 1611afaf5a2dSDavid Somayajulu iounmap(ha->reg); 1612afaf5a2dSDavid Somayajulu pci_release_regions(ha->pdev); 1613afaf5a2dSDavid Somayajulu } 1614afaf5a2dSDavid Somayajulu 1615afaf5a2dSDavid Somayajulu /** 1616afaf5a2dSDavid Somayajulu * qla4xxx_mem_alloc - allocates memory for use by adapter. 1617afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 1618afaf5a2dSDavid Somayajulu * 1619afaf5a2dSDavid Somayajulu * Allocates DMA memory for request and response queues. Also allocates memory 1620afaf5a2dSDavid Somayajulu * for srbs. 1621afaf5a2dSDavid Somayajulu **/ 1622afaf5a2dSDavid Somayajulu static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 1623afaf5a2dSDavid Somayajulu { 1624afaf5a2dSDavid Somayajulu unsigned long align; 1625afaf5a2dSDavid Somayajulu 1626afaf5a2dSDavid Somayajulu /* Allocate contiguous block of DMA memory for queues. */ 1627afaf5a2dSDavid Somayajulu ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1628afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 1629afaf5a2dSDavid Somayajulu sizeof(struct shadow_regs) + 1630afaf5a2dSDavid Somayajulu MEM_ALIGN_VALUE + 1631afaf5a2dSDavid Somayajulu (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 1632afaf5a2dSDavid Somayajulu ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 1633afaf5a2dSDavid Somayajulu &ha->queues_dma, GFP_KERNEL); 1634afaf5a2dSDavid Somayajulu if (ha->queues == NULL) { 1635c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1636afaf5a2dSDavid Somayajulu "Memory Allocation failed - queues.\n"); 1637afaf5a2dSDavid Somayajulu 1638afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1639afaf5a2dSDavid Somayajulu } 1640afaf5a2dSDavid Somayajulu memset(ha->queues, 0, ha->queues_len); 1641afaf5a2dSDavid Somayajulu 1642afaf5a2dSDavid Somayajulu /* 1643afaf5a2dSDavid Somayajulu * As per RISC alignment requirements -- the bus-address must be a 1644afaf5a2dSDavid Somayajulu * multiple of the request-ring size (in bytes). 1645afaf5a2dSDavid Somayajulu */ 1646afaf5a2dSDavid Somayajulu align = 0; 1647afaf5a2dSDavid Somayajulu if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 1648afaf5a2dSDavid Somayajulu align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 1649afaf5a2dSDavid Somayajulu (MEM_ALIGN_VALUE - 1)); 1650afaf5a2dSDavid Somayajulu 1651afaf5a2dSDavid Somayajulu /* Update request and response queue pointers. */ 1652afaf5a2dSDavid Somayajulu ha->request_dma = ha->queues_dma + align; 1653afaf5a2dSDavid Somayajulu ha->request_ring = (struct queue_entry *) (ha->queues + align); 1654afaf5a2dSDavid Somayajulu ha->response_dma = ha->queues_dma + align + 1655afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 1656afaf5a2dSDavid Somayajulu ha->response_ring = (struct queue_entry *) (ha->queues + align + 1657afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1658afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1659afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = ha->queues_dma + align + 1660afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1661afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 1662afaf5a2dSDavid Somayajulu ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 1663afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1664afaf5a2dSDavid Somayajulu QUEUE_SIZE) + 1665afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * 1666afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1667afaf5a2dSDavid Somayajulu 1668afaf5a2dSDavid Somayajulu /* Allocate memory for srb pool. */ 1669afaf5a2dSDavid Somayajulu ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 1670afaf5a2dSDavid Somayajulu mempool_free_slab, srb_cachep); 1671afaf5a2dSDavid Somayajulu if (ha->srb_mempool == NULL) { 1672c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1673afaf5a2dSDavid Somayajulu "Memory Allocation failed - SRB Pool.\n"); 1674afaf5a2dSDavid Somayajulu 1675afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1676afaf5a2dSDavid Somayajulu } 1677afaf5a2dSDavid Somayajulu 1678b3a271a9SManish Rangankar ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 1679b3a271a9SManish Rangankar CHAP_DMA_BLOCK_SIZE, 8, 0); 1680b3a271a9SManish Rangankar 1681b3a271a9SManish Rangankar if (ha->chap_dma_pool == NULL) { 1682b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 1683b3a271a9SManish Rangankar "%s: chap_dma_pool allocation failed..\n", __func__); 1684b3a271a9SManish Rangankar goto mem_alloc_error_exit; 1685b3a271a9SManish Rangankar } 1686b3a271a9SManish Rangankar 1687afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 1688afaf5a2dSDavid Somayajulu 1689afaf5a2dSDavid Somayajulu mem_alloc_error_exit: 1690afaf5a2dSDavid Somayajulu qla4xxx_mem_free(ha); 1691afaf5a2dSDavid Somayajulu return QLA_ERROR; 1692afaf5a2dSDavid Somayajulu } 1693afaf5a2dSDavid Somayajulu 1694afaf5a2dSDavid Somayajulu /** 1695f4f5df23SVikas Chaudhary * qla4_8xxx_check_fw_alive - Check firmware health 1696f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1697f4f5df23SVikas Chaudhary * 1698f4f5df23SVikas Chaudhary * Context: Interrupt 1699f4f5df23SVikas Chaudhary **/ 1700f4f5df23SVikas Chaudhary static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 1701f4f5df23SVikas Chaudhary { 1702f4f5df23SVikas Chaudhary uint32_t fw_heartbeat_counter, halt_status; 1703f4f5df23SVikas Chaudhary 1704f4f5df23SVikas Chaudhary fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 17052232be0dSLalit Chandivade /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 17062232be0dSLalit Chandivade if (fw_heartbeat_counter == 0xffffffff) { 17072232be0dSLalit Chandivade DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 17082232be0dSLalit Chandivade "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 17092232be0dSLalit Chandivade ha->host_no, __func__)); 17102232be0dSLalit Chandivade return; 17112232be0dSLalit Chandivade } 1712f4f5df23SVikas Chaudhary 1713f4f5df23SVikas Chaudhary if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 1714f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat++; 1715f4f5df23SVikas Chaudhary /* FW not alive after 2 seconds */ 1716f4f5df23SVikas Chaudhary if (ha->seconds_since_last_heartbeat == 2) { 1717f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat = 0; 1718f4f5df23SVikas Chaudhary halt_status = qla4_8xxx_rd_32(ha, 1719f4f5df23SVikas Chaudhary QLA82XX_PEG_HALT_STATUS1); 172068d92ebfSVikas Chaudhary 172168d92ebfSVikas Chaudhary ql4_printk(KERN_INFO, ha, 172268d92ebfSVikas Chaudhary "scsi(%ld): %s, Dumping hw/fw registers:\n " 172368d92ebfSVikas Chaudhary " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:" 172468d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:" 172568d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:" 172668d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_4_PC: 0x%x\n", 172768d92ebfSVikas Chaudhary ha->host_no, __func__, halt_status, 172868d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, 172968d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 173068d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 173168d92ebfSVikas Chaudhary 0x3c), 173268d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 173368d92ebfSVikas Chaudhary 0x3c), 173468d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 173568d92ebfSVikas Chaudhary 0x3c), 173668d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 173768d92ebfSVikas Chaudhary 0x3c), 173868d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 173968d92ebfSVikas Chaudhary 0x3c)); 174021033639SNilesh Javali 1741f4f5df23SVikas Chaudhary /* Since we cannot change dev_state in interrupt 1742f4f5df23SVikas Chaudhary * context, set appropriate DPC flag then wakeup 1743f4f5df23SVikas Chaudhary * DPC */ 1744f4f5df23SVikas Chaudhary if (halt_status & HALT_STATUS_UNRECOVERABLE) 1745f4f5df23SVikas Chaudhary set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 1746f4f5df23SVikas Chaudhary else { 1747f4f5df23SVikas Chaudhary printk("scsi%ld: %s: detect abort needed!\n", 1748f4f5df23SVikas Chaudhary ha->host_no, __func__); 1749f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1750f4f5df23SVikas Chaudhary } 1751f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 175221033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 1753f4f5df23SVikas Chaudhary } 175499457d75SLalit Chandivade } else 175599457d75SLalit Chandivade ha->seconds_since_last_heartbeat = 0; 175699457d75SLalit Chandivade 1757f4f5df23SVikas Chaudhary ha->fw_heartbeat_counter = fw_heartbeat_counter; 1758f4f5df23SVikas Chaudhary } 1759f4f5df23SVikas Chaudhary 1760f4f5df23SVikas Chaudhary /** 1761f4f5df23SVikas Chaudhary * qla4_8xxx_watchdog - Poll dev state 1762f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1763f4f5df23SVikas Chaudhary * 1764f4f5df23SVikas Chaudhary * Context: Interrupt 1765f4f5df23SVikas Chaudhary **/ 1766f4f5df23SVikas Chaudhary void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 1767f4f5df23SVikas Chaudhary { 1768f4f5df23SVikas Chaudhary uint32_t dev_state; 1769f4f5df23SVikas Chaudhary 1770f4f5df23SVikas Chaudhary dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 1771f4f5df23SVikas Chaudhary 1772f4f5df23SVikas Chaudhary /* don't poll if reset is going on */ 1773d56a1f7bSLalit Chandivade if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1774d56a1f7bSLalit Chandivade test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1775977f46a4SVikas Chaudhary test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 1776f4f5df23SVikas Chaudhary if (dev_state == QLA82XX_DEV_NEED_RESET && 1777f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 17783930b8c1SVikas Chaudhary if (!ql4xdontresethba) { 17793930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: " 17803930b8c1SVikas Chaudhary "NEED RESET!\n", __func__); 1781f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1782f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 178321033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 17843930b8c1SVikas Chaudhary } 1785f4f5df23SVikas Chaudhary } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT && 1786f4f5df23SVikas Chaudhary !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 17873930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 17883930b8c1SVikas Chaudhary __func__); 1789f4f5df23SVikas Chaudhary set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 1790f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1791f4f5df23SVikas Chaudhary } else { 1792f4f5df23SVikas Chaudhary /* Check firmware health */ 1793f4f5df23SVikas Chaudhary qla4_8xxx_check_fw_alive(ha); 1794f4f5df23SVikas Chaudhary } 1795f4f5df23SVikas Chaudhary } 1796f4f5df23SVikas Chaudhary } 1797f4f5df23SVikas Chaudhary 1798f4f5df23SVikas Chaudhary /** 1799afaf5a2dSDavid Somayajulu * qla4xxx_timer - checks every second for work to do. 1800afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1801afaf5a2dSDavid Somayajulu **/ 1802afaf5a2dSDavid Somayajulu static void qla4xxx_timer(struct scsi_qla_host *ha) 1803afaf5a2dSDavid Somayajulu { 1804afaf5a2dSDavid Somayajulu int start_dpc = 0; 18052232be0dSLalit Chandivade uint16_t w; 18062232be0dSLalit Chandivade 18072232be0dSLalit Chandivade /* If we are in the middle of AER/EEH processing 18082232be0dSLalit Chandivade * skip any processing and reschedule the timer 18092232be0dSLalit Chandivade */ 18102232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 18112232be0dSLalit Chandivade mod_timer(&ha->timer, jiffies + HZ); 18122232be0dSLalit Chandivade return; 18132232be0dSLalit Chandivade } 18142232be0dSLalit Chandivade 18152232be0dSLalit Chandivade /* Hardware read to trigger an EEH error during mailbox waits. */ 18162232be0dSLalit Chandivade if (!pci_channel_offline(ha->pdev)) 18172232be0dSLalit Chandivade pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 1818afaf5a2dSDavid Somayajulu 1819f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1820f4f5df23SVikas Chaudhary qla4_8xxx_watchdog(ha); 1821f4f5df23SVikas Chaudhary } 1822f4f5df23SVikas Chaudhary 1823f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 1824afaf5a2dSDavid Somayajulu /* Check for heartbeat interval. */ 1825afaf5a2dSDavid Somayajulu if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 1826afaf5a2dSDavid Somayajulu ha->heartbeat_interval != 0) { 1827afaf5a2dSDavid Somayajulu ha->seconds_since_last_heartbeat++; 1828afaf5a2dSDavid Somayajulu if (ha->seconds_since_last_heartbeat > 1829afaf5a2dSDavid Somayajulu ha->heartbeat_interval + 2) 1830afaf5a2dSDavid Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 1831afaf5a2dSDavid Somayajulu } 1832f4f5df23SVikas Chaudhary } 1833afaf5a2dSDavid Somayajulu 1834afaf5a2dSDavid Somayajulu /* Wakeup the dpc routine for this adapter, if needed. */ 18351b46807eSLalit Chandivade if (start_dpc || 1836afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1837afaf5a2dSDavid Somayajulu test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 1838afaf5a2dSDavid Somayajulu test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 1839f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 1840afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1841afaf5a2dSDavid Somayajulu test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 1842065aa1b4SVikas Chaudhary test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 1843f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1844f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 18451b46807eSLalit Chandivade test_bit(DPC_AEN, &ha->dpc_flags)) { 1846afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 1847afaf5a2dSDavid Somayajulu " - dpc flags = 0x%lx\n", 1848afaf5a2dSDavid Somayajulu ha->host_no, __func__, ha->dpc_flags)); 1849f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1850afaf5a2dSDavid Somayajulu } 1851afaf5a2dSDavid Somayajulu 1852afaf5a2dSDavid Somayajulu /* Reschedule timer thread to call us back in one second */ 1853afaf5a2dSDavid Somayajulu mod_timer(&ha->timer, jiffies + HZ); 1854afaf5a2dSDavid Somayajulu 1855afaf5a2dSDavid Somayajulu DEBUG2(ha->seconds_since_last_intr++); 1856afaf5a2dSDavid Somayajulu } 1857afaf5a2dSDavid Somayajulu 1858afaf5a2dSDavid Somayajulu /** 1859afaf5a2dSDavid Somayajulu * qla4xxx_cmd_wait - waits for all outstanding commands to complete 1860afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1861afaf5a2dSDavid Somayajulu * 1862afaf5a2dSDavid Somayajulu * This routine stalls the driver until all outstanding commands are returned. 1863afaf5a2dSDavid Somayajulu * Caller must release the Hardware Lock prior to calling this routine. 1864afaf5a2dSDavid Somayajulu **/ 1865afaf5a2dSDavid Somayajulu static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 1866afaf5a2dSDavid Somayajulu { 1867afaf5a2dSDavid Somayajulu uint32_t index = 0; 1868afaf5a2dSDavid Somayajulu unsigned long flags; 1869afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 1870afaf5a2dSDavid Somayajulu 1871f4f5df23SVikas Chaudhary unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 1872f4f5df23SVikas Chaudhary 1873f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 1874f4f5df23SVikas Chaudhary "complete\n", WAIT_CMD_TOV)); 1875f4f5df23SVikas Chaudhary 1876f4f5df23SVikas Chaudhary while (!time_after_eq(jiffies, wtime)) { 1877afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1878afaf5a2dSDavid Somayajulu /* Find a command that hasn't completed. */ 1879afaf5a2dSDavid Somayajulu for (index = 0; index < ha->host->can_queue; index++) { 1880afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, index); 1881a1e0063dSMike Christie /* 1882a1e0063dSMike Christie * We cannot just check if the index is valid, 1883a1e0063dSMike Christie * becase if we are run from the scsi eh, then 1884a1e0063dSMike Christie * the scsi/block layer is going to prevent 1885a1e0063dSMike Christie * the tag from being released. 1886a1e0063dSMike Christie */ 1887a1e0063dSMike Christie if (cmd != NULL && CMD_SP(cmd)) 1888afaf5a2dSDavid Somayajulu break; 1889afaf5a2dSDavid Somayajulu } 1890afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1891afaf5a2dSDavid Somayajulu 1892afaf5a2dSDavid Somayajulu /* If No Commands are pending, wait is complete */ 1893f4f5df23SVikas Chaudhary if (index == ha->host->can_queue) 1894f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1895afaf5a2dSDavid Somayajulu 1896afaf5a2dSDavid Somayajulu msleep(1000); 1897afaf5a2dSDavid Somayajulu } 1898f4f5df23SVikas Chaudhary /* If we timed out on waiting for commands to come back 1899f4f5df23SVikas Chaudhary * return ERROR. */ 1900f4f5df23SVikas Chaudhary return QLA_ERROR; 1901afaf5a2dSDavid Somayajulu } 1902afaf5a2dSDavid Somayajulu 1903f4f5df23SVikas Chaudhary int qla4xxx_hw_reset(struct scsi_qla_host *ha) 1904afaf5a2dSDavid Somayajulu { 1905afaf5a2dSDavid Somayajulu uint32_t ctrl_status; 1906477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1907477ffb9dSDavid C Somayajulu 1908477ffb9dSDavid C Somayajulu DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 1909afaf5a2dSDavid Somayajulu 1910f4f5df23SVikas Chaudhary if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 1911f4f5df23SVikas Chaudhary return QLA_ERROR; 1912f4f5df23SVikas Chaudhary 1913afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1914afaf5a2dSDavid Somayajulu 1915afaf5a2dSDavid Somayajulu /* 1916afaf5a2dSDavid Somayajulu * If the SCSI Reset Interrupt bit is set, clear it. 1917afaf5a2dSDavid Somayajulu * Otherwise, the Soft Reset won't work. 1918afaf5a2dSDavid Somayajulu */ 1919afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1920afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 1921afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1922afaf5a2dSDavid Somayajulu 1923afaf5a2dSDavid Somayajulu /* Issue Soft Reset */ 1924afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 1925afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1926afaf5a2dSDavid Somayajulu 1927afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1928f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1929477ffb9dSDavid C Somayajulu } 1930477ffb9dSDavid C Somayajulu 1931477ffb9dSDavid C Somayajulu /** 1932477ffb9dSDavid C Somayajulu * qla4xxx_soft_reset - performs soft reset. 1933477ffb9dSDavid C Somayajulu * @ha: Pointer to host adapter structure. 1934477ffb9dSDavid C Somayajulu **/ 1935477ffb9dSDavid C Somayajulu int qla4xxx_soft_reset(struct scsi_qla_host *ha) 1936477ffb9dSDavid C Somayajulu { 1937477ffb9dSDavid C Somayajulu uint32_t max_wait_time; 1938477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1939f931c534SVikas Chaudhary int status; 1940477ffb9dSDavid C Somayajulu uint32_t ctrl_status; 1941477ffb9dSDavid C Somayajulu 1942f931c534SVikas Chaudhary status = qla4xxx_hw_reset(ha); 1943f931c534SVikas Chaudhary if (status != QLA_SUCCESS) 1944f931c534SVikas Chaudhary return status; 1945afaf5a2dSDavid Somayajulu 1946f931c534SVikas Chaudhary status = QLA_ERROR; 1947afaf5a2dSDavid Somayajulu /* Wait until the Network Reset Intr bit is cleared */ 1948afaf5a2dSDavid Somayajulu max_wait_time = RESET_INTR_TOV; 1949afaf5a2dSDavid Somayajulu do { 1950afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1951afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1952afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1953afaf5a2dSDavid Somayajulu 1954afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 1955afaf5a2dSDavid Somayajulu break; 1956afaf5a2dSDavid Somayajulu 1957afaf5a2dSDavid Somayajulu msleep(1000); 1958afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1959afaf5a2dSDavid Somayajulu 1960afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 1961afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_WARNING 1962afaf5a2dSDavid Somayajulu "scsi%ld: Network Reset Intr not cleared by " 1963afaf5a2dSDavid Somayajulu "Network function, clearing it now!\n", 1964afaf5a2dSDavid Somayajulu ha->host_no)); 1965afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1966afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 1967afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1968afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1969afaf5a2dSDavid Somayajulu } 1970afaf5a2dSDavid Somayajulu 1971afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 1972afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 1973afaf5a2dSDavid Somayajulu do { 1974afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1975afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1976afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1977afaf5a2dSDavid Somayajulu 1978afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SOFT_RESET) == 0) { 1979afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 1980afaf5a2dSDavid Somayajulu break; 1981afaf5a2dSDavid Somayajulu } 1982afaf5a2dSDavid Somayajulu 1983afaf5a2dSDavid Somayajulu msleep(1000); 1984afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1985afaf5a2dSDavid Somayajulu 1986afaf5a2dSDavid Somayajulu /* 1987afaf5a2dSDavid Somayajulu * Also, make sure that the SCSI Reset Interrupt bit has been cleared 1988afaf5a2dSDavid Somayajulu * after the soft reset has taken place. 1989afaf5a2dSDavid Somayajulu */ 1990afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1991afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1992afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 1993afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1994afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1995afaf5a2dSDavid Somayajulu } 1996afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1997afaf5a2dSDavid Somayajulu 1998afaf5a2dSDavid Somayajulu /* If soft reset fails then most probably the bios on other 1999afaf5a2dSDavid Somayajulu * function is also enabled. 2000afaf5a2dSDavid Somayajulu * Since the initialization is sequential the other fn 2001afaf5a2dSDavid Somayajulu * wont be able to acknowledge the soft reset. 2002afaf5a2dSDavid Somayajulu * Issue a force soft reset to workaround this scenario. 2003afaf5a2dSDavid Somayajulu */ 2004afaf5a2dSDavid Somayajulu if (max_wait_time == 0) { 2005afaf5a2dSDavid Somayajulu /* Issue Force Soft Reset */ 2006afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2007afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 2008afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2009afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2010afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 2011afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 2012afaf5a2dSDavid Somayajulu do { 2013afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2014afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2015afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2016afaf5a2dSDavid Somayajulu 2017afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 2018afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2019afaf5a2dSDavid Somayajulu break; 2020afaf5a2dSDavid Somayajulu } 2021afaf5a2dSDavid Somayajulu 2022afaf5a2dSDavid Somayajulu msleep(1000); 2023afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2024afaf5a2dSDavid Somayajulu } 2025afaf5a2dSDavid Somayajulu 2026afaf5a2dSDavid Somayajulu return status; 2027afaf5a2dSDavid Somayajulu } 2028afaf5a2dSDavid Somayajulu 2029afaf5a2dSDavid Somayajulu /** 2030f4f5df23SVikas Chaudhary * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 2031afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2032f4f5df23SVikas Chaudhary * @res: returned scsi status 2033afaf5a2dSDavid Somayajulu * 2034afaf5a2dSDavid Somayajulu * This routine is called just prior to a HARD RESET to return all 2035afaf5a2dSDavid Somayajulu * outstanding commands back to the Operating System. 2036afaf5a2dSDavid Somayajulu * Caller should make sure that the following locks are released 2037afaf5a2dSDavid Somayajulu * before this calling routine: Hardware lock, and io_request_lock. 2038afaf5a2dSDavid Somayajulu **/ 2039f4f5df23SVikas Chaudhary static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 2040afaf5a2dSDavid Somayajulu { 2041afaf5a2dSDavid Somayajulu struct srb *srb; 2042afaf5a2dSDavid Somayajulu int i; 2043afaf5a2dSDavid Somayajulu unsigned long flags; 2044afaf5a2dSDavid Somayajulu 2045afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2046afaf5a2dSDavid Somayajulu for (i = 0; i < ha->host->can_queue; i++) { 2047afaf5a2dSDavid Somayajulu srb = qla4xxx_del_from_active_array(ha, i); 2048afaf5a2dSDavid Somayajulu if (srb != NULL) { 2049f4f5df23SVikas Chaudhary srb->cmd->result = res; 205009a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 2051afaf5a2dSDavid Somayajulu } 2052afaf5a2dSDavid Somayajulu } 2053afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2054afaf5a2dSDavid Somayajulu } 2055afaf5a2dSDavid Somayajulu 2056f4f5df23SVikas Chaudhary void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 2057f4f5df23SVikas Chaudhary { 2058f4f5df23SVikas Chaudhary clear_bit(AF_ONLINE, &ha->flags); 2059f4f5df23SVikas Chaudhary 2060f4f5df23SVikas Chaudhary /* Disable the board */ 2061f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 2062f4f5df23SVikas Chaudhary 2063f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2064f4f5df23SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2065f4f5df23SVikas Chaudhary clear_bit(AF_INIT_DONE, &ha->flags); 2066f4f5df23SVikas Chaudhary } 2067f4f5df23SVikas Chaudhary 2068b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 2069b3a271a9SManish Rangankar { 2070b3a271a9SManish Rangankar struct iscsi_session *sess; 2071b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2072b3a271a9SManish Rangankar 2073b3a271a9SManish Rangankar sess = cls_session->dd_data; 2074b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2075b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 2076b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED); 2077b3a271a9SManish Rangankar } 2078b3a271a9SManish Rangankar 2079afaf5a2dSDavid Somayajulu /** 2080afaf5a2dSDavid Somayajulu * qla4xxx_recover_adapter - recovers adapter after a fatal error 2081afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2082afaf5a2dSDavid Somayajulu **/ 2083f4f5df23SVikas Chaudhary static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 2084afaf5a2dSDavid Somayajulu { 2085f4f5df23SVikas Chaudhary int status = QLA_ERROR; 2086f4f5df23SVikas Chaudhary uint8_t reset_chip = 0; 2087afaf5a2dSDavid Somayajulu 2088afaf5a2dSDavid Somayajulu /* Stall incoming I/O until we are done */ 2089f4f5df23SVikas Chaudhary scsi_block_requests(ha->host); 2090afaf5a2dSDavid Somayajulu clear_bit(AF_ONLINE, &ha->flags); 2091b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 209250a29aecSMike Christie 2093f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 2094afaf5a2dSDavid Somayajulu 2095f4f5df23SVikas Chaudhary set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2096afaf5a2dSDavid Somayajulu 2097b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 2098b3a271a9SManish Rangankar 2099f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2100f4f5df23SVikas Chaudhary reset_chip = 1; 2101afaf5a2dSDavid Somayajulu 2102f4f5df23SVikas Chaudhary /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 2103f4f5df23SVikas Chaudhary * do not reset adapter, jump to initialize_adapter */ 2104f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2105f4f5df23SVikas Chaudhary status = QLA_SUCCESS; 2106f4f5df23SVikas Chaudhary goto recover_ha_init_adapter; 2107afaf5a2dSDavid Somayajulu } 2108afaf5a2dSDavid Somayajulu 2109f4f5df23SVikas Chaudhary /* For the ISP-82xx adapter, issue a stop_firmware if invoked 2110f4f5df23SVikas Chaudhary * from eh_host_reset or ioctl module */ 2111f4f5df23SVikas Chaudhary if (is_qla8022(ha) && !reset_chip && 2112f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2113f4f5df23SVikas Chaudhary 2114f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2115f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing stop_firmware...\n", 2116f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2117f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_firmware(ha); 2118f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 21192bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2120f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2121f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2122f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2123f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2124f4f5df23SVikas Chaudhary } else { 2125f4f5df23SVikas Chaudhary /* If the stop_firmware fails then 2126f4f5df23SVikas Chaudhary * reset the entire chip */ 2127f4f5df23SVikas Chaudhary reset_chip = 1; 2128f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2129f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2130f4f5df23SVikas Chaudhary } 2131f4f5df23SVikas Chaudhary } 2132f4f5df23SVikas Chaudhary 2133f4f5df23SVikas Chaudhary /* Issue full chip reset if recovering from a catastrophic error, 2134f4f5df23SVikas Chaudhary * or if stop_firmware fails for ISP-82xx. 2135f4f5df23SVikas Chaudhary * This is the default case for ISP-4xxx */ 2136f4f5df23SVikas Chaudhary if (!is_qla8022(ha) || reset_chip) { 21372bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2138f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2139f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2140f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2141f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2142f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing chip reset..\n", 2143f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2144f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_chip(ha); 2145f4f5df23SVikas Chaudhary } 2146f4f5df23SVikas Chaudhary 2147f4f5df23SVikas Chaudhary /* Flush any pending ddb changed AENs */ 2148f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2149f4f5df23SVikas Chaudhary 2150f4f5df23SVikas Chaudhary recover_ha_init_adapter: 2151f4f5df23SVikas Chaudhary /* Upon successful firmware/chip reset, re-initialize the adapter */ 2152f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 2153f4f5df23SVikas Chaudhary /* For ISP-4xxx, force function 1 to always initialize 2154f4f5df23SVikas Chaudhary * before function 3 to prevent both funcions from 2155f4f5df23SVikas Chaudhary * stepping on top of the other */ 2156f4f5df23SVikas Chaudhary if (!is_qla8022(ha) && (ha->mac_index == 3)) 2157f4f5df23SVikas Chaudhary ssleep(6); 2158f4f5df23SVikas Chaudhary 2159f4f5df23SVikas Chaudhary /* NOTE: AF_ONLINE flag set upon successful completion of 2160f4f5df23SVikas Chaudhary * qla4xxx_initialize_adapter */ 21610e7e8501SManish Rangankar status = qla4xxx_initialize_adapter(ha); 2162f4f5df23SVikas Chaudhary } 2163f4f5df23SVikas Chaudhary 2164f4f5df23SVikas Chaudhary /* Retry failed adapter initialization, if necessary 2165f4f5df23SVikas Chaudhary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 2166f4f5df23SVikas Chaudhary * case to prevent ping-pong resets between functions */ 2167f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags) && 2168f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2169afaf5a2dSDavid Somayajulu /* Adapter initialization failed, see if we can retry 2170f4f5df23SVikas Chaudhary * resetting the ha. 2171f4f5df23SVikas Chaudhary * Since we don't want to block the DPC for too long 2172f4f5df23SVikas Chaudhary * with multiple resets in the same thread, 2173f4f5df23SVikas Chaudhary * utilize DPC to retry */ 2174afaf5a2dSDavid Somayajulu if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 2175afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 2176afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - retrying " 2177afaf5a2dSDavid Somayajulu "(%d) more times\n", ha->host_no, 2178afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2179afaf5a2dSDavid Somayajulu set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2180afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2181afaf5a2dSDavid Somayajulu } else { 2182afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt > 0) { 2183afaf5a2dSDavid Somayajulu /* Schedule another Reset HA--DPC will retry */ 2184afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt--; 2185afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - " 2186afaf5a2dSDavid Somayajulu "retry remaining %d\n", 2187afaf5a2dSDavid Somayajulu ha->host_no, 2188afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2189afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2190afaf5a2dSDavid Somayajulu } 2191afaf5a2dSDavid Somayajulu 2192afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt == 0) { 2193afaf5a2dSDavid Somayajulu /* Recover adapter retries have been exhausted. 2194afaf5a2dSDavid Somayajulu * Adapter DEAD */ 2195afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter " 2196afaf5a2dSDavid Somayajulu "failed - board disabled\n", 2197afaf5a2dSDavid Somayajulu ha->host_no)); 2198f4f5df23SVikas Chaudhary qla4xxx_dead_adapter_cleanup(ha); 2199afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2200afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2201f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, 2202afaf5a2dSDavid Somayajulu &ha->dpc_flags); 2203afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2204afaf5a2dSDavid Somayajulu } 2205afaf5a2dSDavid Somayajulu } 2206afaf5a2dSDavid Somayajulu } else { 2207afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2208f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2209afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2210afaf5a2dSDavid Somayajulu } 2211afaf5a2dSDavid Somayajulu 2212afaf5a2dSDavid Somayajulu ha->adapter_error_count++; 2213afaf5a2dSDavid Somayajulu 2214f4f5df23SVikas Chaudhary if (test_bit(AF_ONLINE, &ha->flags)) 2215f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2216afaf5a2dSDavid Somayajulu 2217f4f5df23SVikas Chaudhary scsi_unblock_requests(ha->host); 2218f4f5df23SVikas Chaudhary 2219f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2220f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 222125985edcSLucas De Marchi status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 2222f4f5df23SVikas Chaudhary 2223afaf5a2dSDavid Somayajulu return status; 2224afaf5a2dSDavid Somayajulu } 2225afaf5a2dSDavid Somayajulu 2226b3a271a9SManish Rangankar static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 2227b3a271a9SManish Rangankar { 2228b3a271a9SManish Rangankar struct iscsi_session *sess; 2229b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2230b3a271a9SManish Rangankar struct scsi_qla_host *ha; 2231b3a271a9SManish Rangankar 2232b3a271a9SManish Rangankar sess = cls_session->dd_data; 2233b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2234b3a271a9SManish Rangankar ha = ddb_entry->ha; 2235b3a271a9SManish Rangankar if (!iscsi_is_session_online(cls_session)) { 2236b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 2237b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 2238b3a271a9SManish Rangankar " unblock session\n", ha->host_no, __func__, 2239b3a271a9SManish Rangankar ddb_entry->fw_ddb_index); 2240b3a271a9SManish Rangankar iscsi_unblock_session(ddb_entry->sess); 2241b3a271a9SManish Rangankar } else { 2242b3a271a9SManish Rangankar /* Trigger relogin */ 2243b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, 2244b3a271a9SManish Rangankar ISCSI_ERR_CONN_FAILED); 2245b3a271a9SManish Rangankar } 2246b3a271a9SManish Rangankar } 2247b3a271a9SManish Rangankar } 2248b3a271a9SManish Rangankar 22492d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 22502d7924e6SVikas Chaudhary { 2251b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 22522d7924e6SVikas Chaudhary } 22532d7924e6SVikas Chaudhary 2254f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 2255f4f5df23SVikas Chaudhary { 22561b46807eSLalit Chandivade if (ha->dpc_thread) 2257f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 2258f4f5df23SVikas Chaudhary } 2259f4f5df23SVikas Chaudhary 2260afaf5a2dSDavid Somayajulu /** 2261afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 2262afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 2263afaf5a2dSDavid Somayajulu * 2264afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 2265afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 2266afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 2267afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 2268afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 2269afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 2270afaf5a2dSDavid Somayajulu **/ 2271c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 2272afaf5a2dSDavid Somayajulu { 2273c4028958SDavid Howells struct scsi_qla_host *ha = 2274c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 2275477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 2276afaf5a2dSDavid Somayajulu 2277f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 2278f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 2279f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 2280afaf5a2dSDavid Somayajulu 2281afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 2282afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 22831b46807eSLalit Chandivade return; 2284afaf5a2dSDavid Somayajulu 22852232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 22862232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 22872232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 22881b46807eSLalit Chandivade return; 22892232be0dSLalit Chandivade } 22902232be0dSLalit Chandivade 2291f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2292f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 2293f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 2294f4f5df23SVikas Chaudhary qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 2295f4f5df23SVikas Chaudhary QLA82XX_DEV_FAILED); 2296f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 2297f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 2298f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 2299f4f5df23SVikas Chaudhary } 2300f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 2301f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 2302f4f5df23SVikas Chaudhary } 2303f4f5df23SVikas Chaudhary } 2304f4f5df23SVikas Chaudhary 2305f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 2306f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2307afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2308f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 2309f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 2310f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 2311f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2312f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2313f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2314f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2315f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 2316f4f5df23SVikas Chaudhary } 2317f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2318f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2319f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 2320afaf5a2dSDavid Somayajulu 2321477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2322afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 2323afaf5a2dSDavid Somayajulu 2324afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 2325afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 2326afaf5a2dSDavid Somayajulu if (--wait_time == 0) 2327afaf5a2dSDavid Somayajulu break; 2328afaf5a2dSDavid Somayajulu msleep(1000); 2329afaf5a2dSDavid Somayajulu } 2330afaf5a2dSDavid Somayajulu if (wait_time == 0) 2331afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 2332afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 2333afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 2334f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2335477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 2336477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2337f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 2338477ffb9dSDavid C Somayajulu } 2339477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2340477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 2341f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2342afaf5a2dSDavid Somayajulu } 2343afaf5a2dSDavid Somayajulu } 2344afaf5a2dSDavid Somayajulu 2345f4f5df23SVikas Chaudhary dpc_post_reset_ha: 2346afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 2347afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 2348afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 2349afaf5a2dSDavid Somayajulu 2350afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 2351afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 2352afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 2353afaf5a2dSDavid Somayajulu 2354065aa1b4SVikas Chaudhary /* ---- link change? --- */ 2355065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 2356065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 2357065aa1b4SVikas Chaudhary /* ---- link down? --- */ 23582d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2359065aa1b4SVikas Chaudhary } else { 2360065aa1b4SVikas Chaudhary /* ---- link up? --- * 2361065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 2362065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 2363065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 2364065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 2365065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 2366065aa1b4SVikas Chaudhary 23672d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 2368065aa1b4SVikas Chaudhary } 2369065aa1b4SVikas Chaudhary } 2370afaf5a2dSDavid Somayajulu } 2371afaf5a2dSDavid Somayajulu 2372afaf5a2dSDavid Somayajulu /** 2373afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 2374afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 2375afaf5a2dSDavid Somayajulu **/ 2376afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 2377afaf5a2dSDavid Somayajulu { 2378afaf5a2dSDavid Somayajulu 2379afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 2380afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 2381f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2382afaf5a2dSDavid Somayajulu } 2383afaf5a2dSDavid Somayajulu 2384afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 2385afaf5a2dSDavid Somayajulu if (ha->timer_active) 2386afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 2387afaf5a2dSDavid Somayajulu 2388f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 2389f4f5df23SVikas Chaudhary if (ha->dpc_thread) 2390f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 2391f4f5df23SVikas Chaudhary 2392b3a271a9SManish Rangankar /* Kill the kernel thread for this host */ 2393b3a271a9SManish Rangankar if (ha->task_wq) 2394b3a271a9SManish Rangankar destroy_workqueue(ha->task_wq); 2395b3a271a9SManish Rangankar 2396f4f5df23SVikas Chaudhary /* Put firmware in known state */ 2397f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 2398f4f5df23SVikas Chaudhary 2399f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2400f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 2401f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 2402f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 2403f4f5df23SVikas Chaudhary } 2404f4f5df23SVikas Chaudhary 2405afaf5a2dSDavid Somayajulu /* Detach interrupts */ 2406afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 2407f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 2408afaf5a2dSDavid Somayajulu 2409bee4fe8eSDavid C Somayajulu /* free extra memory */ 2410bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 2411f4f5df23SVikas Chaudhary } 2412bee4fe8eSDavid C Somayajulu 2413f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 2414f4f5df23SVikas Chaudhary { 2415f4f5df23SVikas Chaudhary int status = 0; 2416f4f5df23SVikas Chaudhary uint8_t revision_id; 2417f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 2418f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 2419afaf5a2dSDavid Somayajulu 2420f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 2421f4f5df23SVikas Chaudhary if (status) { 2422f4f5df23SVikas Chaudhary printk(KERN_WARNING 2423f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 2424f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 2425f4f5df23SVikas Chaudhary goto iospace_error_exit; 2426f4f5df23SVikas Chaudhary } 2427f4f5df23SVikas Chaudhary 2428f4f5df23SVikas Chaudhary pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id); 2429f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 2430f4f5df23SVikas Chaudhary __func__, revision_id)); 2431f4f5df23SVikas Chaudhary ha->revision_id = revision_id; 2432f4f5df23SVikas Chaudhary 2433f4f5df23SVikas Chaudhary /* remap phys address */ 2434f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 2435f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 2436f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 2437f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 2438f4f5df23SVikas Chaudhary 2439f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 2440f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 2441f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 2442f4f5df23SVikas Chaudhary printk(KERN_ERR 2443f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 2444f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 2445f4f5df23SVikas Chaudhary goto iospace_error_exit; 2446f4f5df23SVikas Chaudhary } 2447f4f5df23SVikas Chaudhary 2448f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 2449f4f5df23SVikas Chaudhary 2450f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 2451f4f5df23SVikas Chaudhary ha->qla4_8xxx_reg = 2452f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 2453f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 2454f4f5df23SVikas Chaudhary 2455f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 2456f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 2457f4f5df23SVikas Chaudhary 24582657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 24592657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 2460f4f5df23SVikas Chaudhary 24612657c800SShyam Sundar return 0; 2462f4f5df23SVikas Chaudhary iospace_error_exit: 2463f4f5df23SVikas Chaudhary return -ENOMEM; 2464afaf5a2dSDavid Somayajulu } 2465afaf5a2dSDavid Somayajulu 2466afaf5a2dSDavid Somayajulu /*** 2467afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 2468afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 2469afaf5a2dSDavid Somayajulu * 2470afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 2471afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 2472afaf5a2dSDavid Somayajulu **/ 2473f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 2474afaf5a2dSDavid Somayajulu { 2475afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 2476afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 2477afaf5a2dSDavid Somayajulu 2478afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 2479afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 2480afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 2481afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 2482afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 2483c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2484afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 2485afaf5a2dSDavid Somayajulu pio = 0; 2486afaf5a2dSDavid Somayajulu } 2487afaf5a2dSDavid Somayajulu } else { 2488c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 2489afaf5a2dSDavid Somayajulu pio = 0; 2490afaf5a2dSDavid Somayajulu } 2491afaf5a2dSDavid Somayajulu 2492afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 2493afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 2494afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 2495afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 2496afaf5a2dSDavid Somayajulu 2497afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 2498c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2499afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 2500afaf5a2dSDavid Somayajulu 2501afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2502afaf5a2dSDavid Somayajulu } 2503c2660df3SVikas Chaudhary 2504afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 2505c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2506afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 2507afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2508afaf5a2dSDavid Somayajulu } 2509afaf5a2dSDavid Somayajulu 2510afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 2511c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2512afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 2513afaf5a2dSDavid Somayajulu 2514afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2515afaf5a2dSDavid Somayajulu } 2516afaf5a2dSDavid Somayajulu 2517afaf5a2dSDavid Somayajulu ha->pio_address = pio; 2518afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 2519afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 2520afaf5a2dSDavid Somayajulu if (!ha->reg) { 2521c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2522afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 2523afaf5a2dSDavid Somayajulu 2524afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2525afaf5a2dSDavid Somayajulu } 2526afaf5a2dSDavid Somayajulu 2527afaf5a2dSDavid Somayajulu return 0; 2528afaf5a2dSDavid Somayajulu 2529afaf5a2dSDavid Somayajulu iospace_error_exit: 2530afaf5a2dSDavid Somayajulu return -ENOMEM; 2531afaf5a2dSDavid Somayajulu } 2532afaf5a2dSDavid Somayajulu 2533f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 2534f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 2535f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 2536f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 2537f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 2538f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 2539f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 2540f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 2541f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 2542f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 2543f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 2544f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 2545f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 2546f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 2547f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 2548f4f5df23SVikas Chaudhary }; 2549f4f5df23SVikas Chaudhary 2550f4f5df23SVikas Chaudhary static struct isp_operations qla4_8xxx_isp_ops = { 2551f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 2552f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 2553f4f5df23SVikas Chaudhary .disable_intrs = qla4_8xxx_disable_intrs, 2554f4f5df23SVikas Chaudhary .enable_intrs = qla4_8xxx_enable_intrs, 2555f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 2556f4f5df23SVikas Chaudhary .intr_handler = qla4_8xxx_intr_handler, 2557f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4_8xxx_interrupt_service_routine, 2558f4f5df23SVikas Chaudhary .reset_chip = qla4_8xxx_isp_reset, 2559f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 2560f4f5df23SVikas Chaudhary .queue_iocb = qla4_8xxx_queue_iocb, 2561f4f5df23SVikas Chaudhary .complete_iocb = qla4_8xxx_complete_iocb, 2562f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out, 2563f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in, 2564f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 2565f4f5df23SVikas Chaudhary }; 2566f4f5df23SVikas Chaudhary 2567f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2568f4f5df23SVikas Chaudhary { 2569f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 2570f4f5df23SVikas Chaudhary } 2571f4f5df23SVikas Chaudhary 2572f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2573f4f5df23SVikas Chaudhary { 2574f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out)); 2575f4f5df23SVikas Chaudhary } 2576f4f5df23SVikas Chaudhary 2577f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2578f4f5df23SVikas Chaudhary { 2579f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 2580f4f5df23SVikas Chaudhary } 2581f4f5df23SVikas Chaudhary 2582f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2583f4f5df23SVikas Chaudhary { 2584f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in)); 2585f4f5df23SVikas Chaudhary } 2586f4f5df23SVikas Chaudhary 25872a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 25882a991c21SManish Rangankar { 25892a991c21SManish Rangankar struct scsi_qla_host *ha = data; 25902a991c21SManish Rangankar char *str = buf; 25912a991c21SManish Rangankar int rc; 25922a991c21SManish Rangankar 25932a991c21SManish Rangankar switch (type) { 25942a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 25952a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 25962a991c21SManish Rangankar break; 25972a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 25982a991c21SManish Rangankar rc = sprintf(str, "0\n"); 25992a991c21SManish Rangankar break; 26002a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 26012a991c21SManish Rangankar rc = sysfs_format_mac(str, ha->my_mac, 26022a991c21SManish Rangankar MAC_ADDR_LEN); 26032a991c21SManish Rangankar break; 26042a991c21SManish Rangankar default: 26052a991c21SManish Rangankar rc = -ENOSYS; 26062a991c21SManish Rangankar break; 26072a991c21SManish Rangankar } 26082a991c21SManish Rangankar return rc; 26092a991c21SManish Rangankar } 26102a991c21SManish Rangankar 26112a991c21SManish Rangankar static mode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 26122a991c21SManish Rangankar { 26132a991c21SManish Rangankar int rc; 26142a991c21SManish Rangankar 26152a991c21SManish Rangankar switch (type) { 26162a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 26172a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 26182a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 26192a991c21SManish Rangankar rc = S_IRUGO; 26202a991c21SManish Rangankar break; 26212a991c21SManish Rangankar default: 26222a991c21SManish Rangankar rc = 0; 26232a991c21SManish Rangankar break; 26242a991c21SManish Rangankar } 26252a991c21SManish Rangankar return rc; 26262a991c21SManish Rangankar } 26272a991c21SManish Rangankar 26282a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 26292a991c21SManish Rangankar { 26302a991c21SManish Rangankar struct scsi_qla_host *ha = data; 26312a991c21SManish Rangankar char *str = buf; 26322a991c21SManish Rangankar int rc; 26332a991c21SManish Rangankar 26342a991c21SManish Rangankar switch (type) { 26352a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 26362a991c21SManish Rangankar rc = sprintf(str, "%s\n", ha->name_string); 26372a991c21SManish Rangankar break; 26382a991c21SManish Rangankar default: 26392a991c21SManish Rangankar rc = -ENOSYS; 26402a991c21SManish Rangankar break; 26412a991c21SManish Rangankar } 26422a991c21SManish Rangankar return rc; 26432a991c21SManish Rangankar } 26442a991c21SManish Rangankar 26452a991c21SManish Rangankar static mode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 26462a991c21SManish Rangankar { 26472a991c21SManish Rangankar int rc; 26482a991c21SManish Rangankar 26492a991c21SManish Rangankar switch (type) { 26502a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 26512a991c21SManish Rangankar rc = S_IRUGO; 26522a991c21SManish Rangankar break; 26532a991c21SManish Rangankar default: 26542a991c21SManish Rangankar rc = 0; 26552a991c21SManish Rangankar break; 26562a991c21SManish Rangankar } 26572a991c21SManish Rangankar return rc; 26582a991c21SManish Rangankar } 26592a991c21SManish Rangankar 26602a991c21SManish Rangankar static ssize_t 26612a991c21SManish Rangankar qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 26622a991c21SManish Rangankar char *buf) 26632a991c21SManish Rangankar { 26642a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 26652a991c21SManish Rangankar char *str = buf; 26662a991c21SManish Rangankar int rc; 26672a991c21SManish Rangankar 26682a991c21SManish Rangankar switch (type) { 26692a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 26702a991c21SManish Rangankar rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 26712a991c21SManish Rangankar break; 26722a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 26732a991c21SManish Rangankar if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 26742a991c21SManish Rangankar rc = sprintf(buf, "%pI4\n", 26752a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 26762a991c21SManish Rangankar else 26772a991c21SManish Rangankar rc = sprintf(str, "%pI6\n", 26782a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 26792a991c21SManish Rangankar break; 26802a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 26812a991c21SManish Rangankar rc = sprintf(str, "%d\n", boot_conn->dest_port); 26822a991c21SManish Rangankar break; 26832a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 26842a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26852a991c21SManish Rangankar boot_conn->chap.target_chap_name_length, 26862a991c21SManish Rangankar (char *)&boot_conn->chap.target_chap_name); 26872a991c21SManish Rangankar break; 26882a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 26892a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26902a991c21SManish Rangankar boot_conn->chap.target_secret_length, 26912a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret); 26922a991c21SManish Rangankar break; 26932a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 26942a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26952a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length, 26962a991c21SManish Rangankar (char *)&boot_conn->chap.intr_chap_name); 26972a991c21SManish Rangankar break; 26982a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 26992a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 27002a991c21SManish Rangankar boot_conn->chap.intr_secret_length, 27012a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret); 27022a991c21SManish Rangankar break; 27032a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 27042a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 27052a991c21SManish Rangankar break; 27062a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 27072a991c21SManish Rangankar rc = sprintf(str, "0\n"); 27082a991c21SManish Rangankar break; 27092a991c21SManish Rangankar default: 27102a991c21SManish Rangankar rc = -ENOSYS; 27112a991c21SManish Rangankar break; 27122a991c21SManish Rangankar } 27132a991c21SManish Rangankar return rc; 27142a991c21SManish Rangankar } 27152a991c21SManish Rangankar 27162a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 27172a991c21SManish Rangankar { 27182a991c21SManish Rangankar struct scsi_qla_host *ha = data; 27192a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 27202a991c21SManish Rangankar 27212a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 27222a991c21SManish Rangankar } 27232a991c21SManish Rangankar 27242a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 27252a991c21SManish Rangankar { 27262a991c21SManish Rangankar struct scsi_qla_host *ha = data; 27272a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 27282a991c21SManish Rangankar 27292a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 27302a991c21SManish Rangankar } 27312a991c21SManish Rangankar 27322a991c21SManish Rangankar static mode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 27332a991c21SManish Rangankar { 27342a991c21SManish Rangankar int rc; 27352a991c21SManish Rangankar 27362a991c21SManish Rangankar switch (type) { 27372a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 27382a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 27392a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 27402a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 27412a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 27422a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 27432a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 27442a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 27452a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 27462a991c21SManish Rangankar rc = S_IRUGO; 27472a991c21SManish Rangankar break; 27482a991c21SManish Rangankar default: 27492a991c21SManish Rangankar rc = 0; 27502a991c21SManish Rangankar break; 27512a991c21SManish Rangankar } 27522a991c21SManish Rangankar return rc; 27532a991c21SManish Rangankar } 27542a991c21SManish Rangankar 27552a991c21SManish Rangankar static void qla4xxx_boot_release(void *data) 27562a991c21SManish Rangankar { 27572a991c21SManish Rangankar struct scsi_qla_host *ha = data; 27582a991c21SManish Rangankar 27592a991c21SManish Rangankar scsi_host_put(ha->host); 27602a991c21SManish Rangankar } 27612a991c21SManish Rangankar 27622a991c21SManish Rangankar static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 27632a991c21SManish Rangankar { 27642a991c21SManish Rangankar dma_addr_t buf_dma; 27652a991c21SManish Rangankar uint32_t addr, pri_addr, sec_addr; 27662a991c21SManish Rangankar uint32_t offset; 27672a991c21SManish Rangankar uint16_t func_num; 27682a991c21SManish Rangankar uint8_t val; 27692a991c21SManish Rangankar uint8_t *buf = NULL; 27702a991c21SManish Rangankar size_t size = 13 * sizeof(uint8_t); 27712a991c21SManish Rangankar int ret = QLA_SUCCESS; 27722a991c21SManish Rangankar 27732a991c21SManish Rangankar func_num = PCI_FUNC(ha->pdev->devfn); 27742a991c21SManish Rangankar 27752a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 27762a991c21SManish Rangankar "%s: Get FW boot info for 0x%x func %d\n", __func__, 27772a991c21SManish Rangankar (is_qla4032(ha) ? PCI_DEVICE_ID_QLOGIC_ISP4032 : 27782a991c21SManish Rangankar PCI_DEVICE_ID_QLOGIC_ISP8022), func_num)); 27792a991c21SManish Rangankar 27802a991c21SManish Rangankar if (is_qla4032(ha)) { 27812a991c21SManish Rangankar if (func_num == 1) { 27822a991c21SManish Rangankar addr = NVRAM_PORT0_BOOT_MODE; 27832a991c21SManish Rangankar pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 27842a991c21SManish Rangankar sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 27852a991c21SManish Rangankar } else if (func_num == 3) { 27862a991c21SManish Rangankar addr = NVRAM_PORT1_BOOT_MODE; 27872a991c21SManish Rangankar pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 27882a991c21SManish Rangankar sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 27892a991c21SManish Rangankar } else { 27902a991c21SManish Rangankar ret = QLA_ERROR; 27912a991c21SManish Rangankar goto exit_boot_info; 27922a991c21SManish Rangankar } 27932a991c21SManish Rangankar 27942a991c21SManish Rangankar /* Check Boot Mode */ 27952a991c21SManish Rangankar val = rd_nvram_byte(ha, addr); 27962a991c21SManish Rangankar if (!(val & 0x07)) { 27972a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 27982a991c21SManish Rangankar "%s: Failed Boot options : 0x%x\n", 27992a991c21SManish Rangankar __func__, val)); 28002a991c21SManish Rangankar ret = QLA_ERROR; 28012a991c21SManish Rangankar goto exit_boot_info; 28022a991c21SManish Rangankar } 28032a991c21SManish Rangankar 28042a991c21SManish Rangankar /* get primary valid target index */ 28052a991c21SManish Rangankar val = rd_nvram_byte(ha, pri_addr); 28062a991c21SManish Rangankar if (val & BIT_7) 28072a991c21SManish Rangankar ddb_index[0] = (val & 0x7f); 28082a991c21SManish Rangankar else 28092a991c21SManish Rangankar ddb_index[0] = 0; 28102a991c21SManish Rangankar 28112a991c21SManish Rangankar /* get secondary valid target index */ 28122a991c21SManish Rangankar val = rd_nvram_byte(ha, sec_addr); 28132a991c21SManish Rangankar if (val & BIT_7) 28142a991c21SManish Rangankar ddb_index[1] = (val & 0x7f); 28152a991c21SManish Rangankar else 28162a991c21SManish Rangankar ddb_index[1] = 1; 28172a991c21SManish Rangankar 28182a991c21SManish Rangankar } else if (is_qla8022(ha)) { 28192a991c21SManish Rangankar buf = dma_alloc_coherent(&ha->pdev->dev, size, 28202a991c21SManish Rangankar &buf_dma, GFP_KERNEL); 28212a991c21SManish Rangankar if (!buf) { 28222a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 28232a991c21SManish Rangankar "%s: Unable to allocate dma buffer\n", 28242a991c21SManish Rangankar __func__)); 28252a991c21SManish Rangankar ret = QLA_ERROR; 28262a991c21SManish Rangankar goto exit_boot_info; 28272a991c21SManish Rangankar } 28282a991c21SManish Rangankar 28292a991c21SManish Rangankar if (ha->port_num == 0) 28302a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT0; 28312a991c21SManish Rangankar else if (ha->port_num == 1) 28322a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT1; 28332a991c21SManish Rangankar else { 28342a991c21SManish Rangankar ret = QLA_ERROR; 28352a991c21SManish Rangankar goto exit_boot_info_free; 28362a991c21SManish Rangankar } 28372a991c21SManish Rangankar addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 28382a991c21SManish Rangankar offset; 28392a991c21SManish Rangankar if (qla4xxx_get_flash(ha, buf_dma, addr, 28402a991c21SManish Rangankar 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 28412a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 28422a991c21SManish Rangankar "failed\n", ha->host_no, __func__)); 28432a991c21SManish Rangankar ret = QLA_ERROR; 28442a991c21SManish Rangankar goto exit_boot_info_free; 28452a991c21SManish Rangankar } 28462a991c21SManish Rangankar /* Check Boot Mode */ 28472a991c21SManish Rangankar if (!(buf[1] & 0x07)) { 28482a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 28492a991c21SManish Rangankar "Failed: Boot options : 0x%x\n", 28502a991c21SManish Rangankar buf[1])); 28512a991c21SManish Rangankar ret = QLA_ERROR; 28522a991c21SManish Rangankar goto exit_boot_info_free; 28532a991c21SManish Rangankar } 28542a991c21SManish Rangankar 28552a991c21SManish Rangankar /* get primary valid target index */ 28562a991c21SManish Rangankar if (buf[2] & BIT_7) 28572a991c21SManish Rangankar ddb_index[0] = buf[2] & 0x7f; 28582a991c21SManish Rangankar else 28592a991c21SManish Rangankar ddb_index[0] = 0; 28602a991c21SManish Rangankar 28612a991c21SManish Rangankar /* get secondary valid target index */ 28622a991c21SManish Rangankar if (buf[11] & BIT_7) 28632a991c21SManish Rangankar ddb_index[1] = buf[11] & 0x7f; 28642a991c21SManish Rangankar else 28652a991c21SManish Rangankar ddb_index[1] = 1; 28662a991c21SManish Rangankar 28672a991c21SManish Rangankar } else { 28682a991c21SManish Rangankar ret = QLA_ERROR; 28692a991c21SManish Rangankar goto exit_boot_info; 28702a991c21SManish Rangankar } 28712a991c21SManish Rangankar 28722a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 28732a991c21SManish Rangankar " target ID %d\n", __func__, ddb_index[0], 28742a991c21SManish Rangankar ddb_index[1])); 28752a991c21SManish Rangankar 28762a991c21SManish Rangankar exit_boot_info_free: 28772a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 28782a991c21SManish Rangankar exit_boot_info: 28792a991c21SManish Rangankar return ret; 28802a991c21SManish Rangankar } 28812a991c21SManish Rangankar 28822a991c21SManish Rangankar static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 28832a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess, 28842a991c21SManish Rangankar uint16_t ddb_index) 28852a991c21SManish Rangankar { 28862a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 28872a991c21SManish Rangankar struct dev_db_entry *fw_ddb_entry; 28882a991c21SManish Rangankar dma_addr_t fw_ddb_entry_dma; 28892a991c21SManish Rangankar uint16_t idx; 28902a991c21SManish Rangankar uint16_t options; 28912a991c21SManish Rangankar int ret = QLA_SUCCESS; 28922a991c21SManish Rangankar 28932a991c21SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 28942a991c21SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 28952a991c21SManish Rangankar if (!fw_ddb_entry) { 28962a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 28972a991c21SManish Rangankar "%s: Unable to allocate dma buffer.\n", 28982a991c21SManish Rangankar __func__)); 28992a991c21SManish Rangankar ret = QLA_ERROR; 29002a991c21SManish Rangankar return ret; 29012a991c21SManish Rangankar } 29022a991c21SManish Rangankar 29032a991c21SManish Rangankar if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 29042a991c21SManish Rangankar fw_ddb_entry_dma, ddb_index)) { 29052a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 29062a991c21SManish Rangankar "%s: Flash DDB read Failed\n", __func__)); 29072a991c21SManish Rangankar ret = QLA_ERROR; 29082a991c21SManish Rangankar goto exit_boot_target; 29092a991c21SManish Rangankar } 29102a991c21SManish Rangankar 29112a991c21SManish Rangankar /* Update target name and IP from DDB */ 29122a991c21SManish Rangankar memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 29132a991c21SManish Rangankar min(sizeof(boot_sess->target_name), 29142a991c21SManish Rangankar sizeof(fw_ddb_entry->iscsi_name))); 29152a991c21SManish Rangankar 29162a991c21SManish Rangankar options = le16_to_cpu(fw_ddb_entry->options); 29172a991c21SManish Rangankar if (options & DDB_OPT_IPV6_DEVICE) { 29182a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 29192a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 29202a991c21SManish Rangankar } else { 29212a991c21SManish Rangankar boot_conn->dest_ipaddr.ip_type = 0x1; 29222a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 29232a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 29242a991c21SManish Rangankar } 29252a991c21SManish Rangankar 29262a991c21SManish Rangankar boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 29272a991c21SManish Rangankar 29282a991c21SManish Rangankar /* update chap information */ 29292a991c21SManish Rangankar idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 29302a991c21SManish Rangankar 29312a991c21SManish Rangankar if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 29322a991c21SManish Rangankar 29332a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 29342a991c21SManish Rangankar 29352a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 29362a991c21SManish Rangankar target_chap_name, 29372a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret, 29382a991c21SManish Rangankar idx); 29392a991c21SManish Rangankar if (ret) { 29402a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 29412a991c21SManish Rangankar ret = QLA_ERROR; 29422a991c21SManish Rangankar goto exit_boot_target; 29432a991c21SManish Rangankar } 29442a991c21SManish Rangankar 29452a991c21SManish Rangankar boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 29462a991c21SManish Rangankar boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 29472a991c21SManish Rangankar } 29482a991c21SManish Rangankar 29492a991c21SManish Rangankar if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 29502a991c21SManish Rangankar 29512a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 29522a991c21SManish Rangankar 29532a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 29542a991c21SManish Rangankar intr_chap_name, 29552a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret, 29562a991c21SManish Rangankar (idx + 1)); 29572a991c21SManish Rangankar if (ret) { 29582a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 29592a991c21SManish Rangankar ret = QLA_ERROR; 29602a991c21SManish Rangankar goto exit_boot_target; 29612a991c21SManish Rangankar } 29622a991c21SManish Rangankar 29632a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 29642a991c21SManish Rangankar boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 29652a991c21SManish Rangankar } 29662a991c21SManish Rangankar 29672a991c21SManish Rangankar exit_boot_target: 29682a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 29692a991c21SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 29702a991c21SManish Rangankar return ret; 29712a991c21SManish Rangankar } 29722a991c21SManish Rangankar 29732a991c21SManish Rangankar static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 29742a991c21SManish Rangankar { 29752a991c21SManish Rangankar uint16_t ddb_index[2]; 29762a991c21SManish Rangankar int ret = QLA_SUCCESS; 29772a991c21SManish Rangankar 29782a991c21SManish Rangankar memset(ddb_index, 0, sizeof(ddb_index)); 29792a991c21SManish Rangankar ret = get_fw_boot_info(ha, ddb_index); 29802a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 29812a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 29822a991c21SManish Rangankar "%s: Failed to set boot info.\n", __func__)); 29832a991c21SManish Rangankar return ret; 29842a991c21SManish Rangankar } 29852a991c21SManish Rangankar 29862a991c21SManish Rangankar ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 29872a991c21SManish Rangankar ddb_index[0]); 29882a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 29892a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 29902a991c21SManish Rangankar "primary target\n", __func__)); 29912a991c21SManish Rangankar } 29922a991c21SManish Rangankar 29932a991c21SManish Rangankar ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 29942a991c21SManish Rangankar ddb_index[1]); 29952a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 29962a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 29972a991c21SManish Rangankar "secondary target\n", __func__)); 29982a991c21SManish Rangankar } 29992a991c21SManish Rangankar return ret; 30002a991c21SManish Rangankar } 30012a991c21SManish Rangankar 30022a991c21SManish Rangankar static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 30032a991c21SManish Rangankar { 30042a991c21SManish Rangankar struct iscsi_boot_kobj *boot_kobj; 30052a991c21SManish Rangankar 30062a991c21SManish Rangankar if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 30072a991c21SManish Rangankar return 0; 30082a991c21SManish Rangankar 30092a991c21SManish Rangankar ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 30102a991c21SManish Rangankar if (!ha->boot_kset) 30112a991c21SManish Rangankar goto kset_free; 30122a991c21SManish Rangankar 30132a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 30142a991c21SManish Rangankar goto kset_free; 30152a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 30162a991c21SManish Rangankar qla4xxx_show_boot_tgt_pri_info, 30172a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 30182a991c21SManish Rangankar qla4xxx_boot_release); 30192a991c21SManish Rangankar if (!boot_kobj) 30202a991c21SManish Rangankar goto put_host; 30212a991c21SManish Rangankar 30222a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 30232a991c21SManish Rangankar goto kset_free; 30242a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 30252a991c21SManish Rangankar qla4xxx_show_boot_tgt_sec_info, 30262a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 30272a991c21SManish Rangankar qla4xxx_boot_release); 30282a991c21SManish Rangankar if (!boot_kobj) 30292a991c21SManish Rangankar goto put_host; 30302a991c21SManish Rangankar 30312a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 30322a991c21SManish Rangankar goto kset_free; 30332a991c21SManish Rangankar boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 30342a991c21SManish Rangankar qla4xxx_show_boot_ini_info, 30352a991c21SManish Rangankar qla4xxx_ini_get_attr_visibility, 30362a991c21SManish Rangankar qla4xxx_boot_release); 30372a991c21SManish Rangankar if (!boot_kobj) 30382a991c21SManish Rangankar goto put_host; 30392a991c21SManish Rangankar 30402a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 30412a991c21SManish Rangankar goto kset_free; 30422a991c21SManish Rangankar boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 30432a991c21SManish Rangankar qla4xxx_show_boot_eth_info, 30442a991c21SManish Rangankar qla4xxx_eth_get_attr_visibility, 30452a991c21SManish Rangankar qla4xxx_boot_release); 30462a991c21SManish Rangankar if (!boot_kobj) 30472a991c21SManish Rangankar goto put_host; 30482a991c21SManish Rangankar 30492a991c21SManish Rangankar return 0; 30502a991c21SManish Rangankar 30512a991c21SManish Rangankar put_host: 30522a991c21SManish Rangankar scsi_host_put(ha->host); 30532a991c21SManish Rangankar kset_free: 30542a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 30552a991c21SManish Rangankar return -ENOMEM; 30562a991c21SManish Rangankar } 30572a991c21SManish Rangankar 3058afaf5a2dSDavid Somayajulu /** 3059afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 3060afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 3061afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 3062afaf5a2dSDavid Somayajulu * 3063afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 3064afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 3065afaf5a2dSDavid Somayajulu * the driver. 3066afaf5a2dSDavid Somayajulu **/ 3067afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 3068afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 3069afaf5a2dSDavid Somayajulu { 3070afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 3071afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 3072afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 3073afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 3074afaf5a2dSDavid Somayajulu char buf[34]; 3075f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 3076f9880e76SPrasanna Mumbai uint32_t dev_state; 3077afaf5a2dSDavid Somayajulu 3078afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 3079afaf5a2dSDavid Somayajulu return -1; 3080afaf5a2dSDavid Somayajulu 3081b3a271a9SManish Rangankar host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 3082afaf5a2dSDavid Somayajulu if (host == NULL) { 3083afaf5a2dSDavid Somayajulu printk(KERN_WARNING 3084afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 3085afaf5a2dSDavid Somayajulu goto probe_disable_device; 3086afaf5a2dSDavid Somayajulu } 3087afaf5a2dSDavid Somayajulu 3088afaf5a2dSDavid Somayajulu /* Clear our data area */ 3089b3a271a9SManish Rangankar ha = to_qla_host(host); 3090afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 3091afaf5a2dSDavid Somayajulu 3092afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 3093afaf5a2dSDavid Somayajulu ha->pdev = pdev; 3094afaf5a2dSDavid Somayajulu ha->host = host; 3095afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 3096afaf5a2dSDavid Somayajulu 30972232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 30982232be0dSLalit Chandivade 3099f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 3100f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3101f4f5df23SVikas Chaudhary ha->isp_ops = &qla4_8xxx_isp_ops; 3102f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 3103f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 3104f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 3105f4f5df23SVikas Chaudhary ha->curr_window = 255; 3106f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 3107f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 3108f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 3109f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 3110f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 3111f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 3112f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 3113f4f5df23SVikas Chaudhary } else { 3114f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 3115f4f5df23SVikas Chaudhary } 3116f4f5df23SVikas Chaudhary 31172232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 31182232be0dSLalit Chandivade if (is_qla8022(ha)) 31192232be0dSLalit Chandivade pdev->needs_freset = 1; 31202232be0dSLalit Chandivade 3121afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 3122f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 3123afaf5a2dSDavid Somayajulu if (ret) 3124f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 3125afaf5a2dSDavid Somayajulu 3126c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 3127afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 3128afaf5a2dSDavid Somayajulu 3129afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 3130afaf5a2dSDavid Somayajulu 3131afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 3132afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 3133afaf5a2dSDavid Somayajulu 3134afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 3135f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 3136afaf5a2dSDavid Somayajulu 3137afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 3138afaf5a2dSDavid Somayajulu 3139afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 3140afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 3141c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3142afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 3143afaf5a2dSDavid Somayajulu 3144afaf5a2dSDavid Somayajulu ret = -ENOMEM; 3145afaf5a2dSDavid Somayajulu goto probe_failed; 3146afaf5a2dSDavid Somayajulu } 3147afaf5a2dSDavid Somayajulu 3148b3a271a9SManish Rangankar host->cmd_per_lun = 3; 3149b3a271a9SManish Rangankar host->max_channel = 0; 3150b3a271a9SManish Rangankar host->max_lun = MAX_LUNS - 1; 3151b3a271a9SManish Rangankar host->max_id = MAX_TARGETS; 3152b3a271a9SManish Rangankar host->max_cmd_len = IOCB_MAX_CDB_LEN; 3153b3a271a9SManish Rangankar host->can_queue = MAX_SRBS ; 3154b3a271a9SManish Rangankar host->transportt = qla4xxx_scsi_transport; 3155b3a271a9SManish Rangankar 3156b3a271a9SManish Rangankar ret = scsi_init_shared_tag_map(host, MAX_SRBS); 3157b3a271a9SManish Rangankar if (ret) { 3158b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 3159b3a271a9SManish Rangankar "%s: scsi_init_shared_tag_map failed\n", __func__); 3160b3a271a9SManish Rangankar goto probe_failed; 3161b3a271a9SManish Rangankar } 3162b3a271a9SManish Rangankar 3163b3a271a9SManish Rangankar pci_set_drvdata(pdev, ha); 3164b3a271a9SManish Rangankar 3165b3a271a9SManish Rangankar ret = scsi_add_host(host, &pdev->dev); 3166b3a271a9SManish Rangankar if (ret) 3167b3a271a9SManish Rangankar goto probe_failed; 3168b3a271a9SManish Rangankar 3169f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 3170f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 3171f4f5df23SVikas Chaudhary 3172afaf5a2dSDavid Somayajulu /* 3173afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 3174afaf5a2dSDavid Somayajulu * firmware 3175afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 3176afaf5a2dSDavid Somayajulu */ 31770e7e8501SManish Rangankar status = qla4xxx_initialize_adapter(ha); 3178f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 3179f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 3180f9880e76SPrasanna Mumbai 3181f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 3182f9880e76SPrasanna Mumbai qla4_8xxx_idc_lock(ha); 3183f9880e76SPrasanna Mumbai dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3184f9880e76SPrasanna Mumbai qla4_8xxx_idc_unlock(ha); 3185f9880e76SPrasanna Mumbai if (dev_state == QLA82XX_DEV_FAILED) { 3186f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 3187f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 3188f9880e76SPrasanna Mumbai __func__); 3189f9880e76SPrasanna Mumbai break; 3190f9880e76SPrasanna Mumbai } 3191f9880e76SPrasanna Mumbai } 3192afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 3193afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 3194f4f5df23SVikas Chaudhary 3195f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 3196f4f5df23SVikas Chaudhary continue; 3197f4f5df23SVikas Chaudhary 31980e7e8501SManish Rangankar status = qla4xxx_initialize_adapter(ha); 3199afaf5a2dSDavid Somayajulu } 3200f4f5df23SVikas Chaudhary 3201f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 3202c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 3203afaf5a2dSDavid Somayajulu 3204fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 3205fe998527SLalit Chandivade /* Put the device in failed state. */ 3206fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 3207fe998527SLalit Chandivade qla4_8xxx_idc_lock(ha); 3208fe998527SLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 3209fe998527SLalit Chandivade QLA82XX_DEV_FAILED); 3210fe998527SLalit Chandivade qla4_8xxx_idc_unlock(ha); 3211fe998527SLalit Chandivade } 3212afaf5a2dSDavid Somayajulu ret = -ENODEV; 3213b3a271a9SManish Rangankar goto remove_host; 3214afaf5a2dSDavid Somayajulu } 3215afaf5a2dSDavid Somayajulu 3216afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 3217afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 3218afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 3219afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 3220afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 3221afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 3222c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 3223afaf5a2dSDavid Somayajulu ret = -ENODEV; 3224b3a271a9SManish Rangankar goto remove_host; 3225afaf5a2dSDavid Somayajulu } 3226c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 3227afaf5a2dSDavid Somayajulu 3228b3a271a9SManish Rangankar sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 3229b3a271a9SManish Rangankar ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 3230b3a271a9SManish Rangankar if (!ha->task_wq) { 3231b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 3232b3a271a9SManish Rangankar ret = -ENODEV; 3233b3a271a9SManish Rangankar goto remove_host; 3234b3a271a9SManish Rangankar } 3235b3a271a9SManish Rangankar 3236f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 3237f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 3238f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 3239f4f5df23SVikas Chaudhary * mbx_intr_enable. 3240f4f5df23SVikas Chaudhary */ 3241f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 3242f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 3243afaf5a2dSDavid Somayajulu if (ret) { 3244f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 3245f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 3246b3a271a9SManish Rangankar goto remove_host; 3247afaf5a2dSDavid Somayajulu } 3248f4f5df23SVikas Chaudhary } 3249afaf5a2dSDavid Somayajulu 32502232be0dSLalit Chandivade pci_save_state(ha->pdev); 3251f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 3252afaf5a2dSDavid Somayajulu 3253afaf5a2dSDavid Somayajulu /* Start timer thread. */ 3254afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 3255afaf5a2dSDavid Somayajulu 3256afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 3257afaf5a2dSDavid Somayajulu 3258afaf5a2dSDavid Somayajulu printk(KERN_INFO 3259afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 3260afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 3261afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 3262afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 3263afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 3264ed1086e0SVikas Chaudhary 32652a991c21SManish Rangankar if (qla4xxx_setup_boot_info(ha)) 32662a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n", 32672a991c21SManish Rangankar __func__); 32682a991c21SManish Rangankar 3269ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 3270afaf5a2dSDavid Somayajulu return 0; 3271afaf5a2dSDavid Somayajulu 3272b3a271a9SManish Rangankar remove_host: 3273b3a271a9SManish Rangankar scsi_remove_host(ha->host); 3274b3a271a9SManish Rangankar 3275afaf5a2dSDavid Somayajulu probe_failed: 3276afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 3277f4f5df23SVikas Chaudhary 3278f4f5df23SVikas Chaudhary probe_failed_ioconfig: 32792232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 3280afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 3281afaf5a2dSDavid Somayajulu 3282afaf5a2dSDavid Somayajulu probe_disable_device: 3283afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 3284afaf5a2dSDavid Somayajulu 3285afaf5a2dSDavid Somayajulu return ret; 3286afaf5a2dSDavid Somayajulu } 3287afaf5a2dSDavid Somayajulu 3288afaf5a2dSDavid Somayajulu /** 32897eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 32907eece5a0SKaren Higgins * @ha: pointer to adapter structure 32917eece5a0SKaren Higgins * 32927eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 32937eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 32947eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 32957eece5a0SKaren Higgins **/ 32967eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 32977eece5a0SKaren Higgins { 32987eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 32997eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 33007eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 33017eece5a0SKaren Higgins 33027eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 33037eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 33047eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 33057eece5a0SKaren Higgins 33067eece5a0SKaren Higgins other_pdev = 33077eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 33087eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 33097eece5a0SKaren Higgins fn)); 33107eece5a0SKaren Higgins 33117eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 33127eece5a0SKaren Higgins if (other_pdev) { 33137eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 33147eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 33157eece5a0SKaren Higgins if (other_ha) { 33167eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 33177eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 33187eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 33197eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 33207eece5a0SKaren Higgins } 33217eece5a0SKaren Higgins } 33227eece5a0SKaren Higgins pci_dev_put(other_pdev); 33237eece5a0SKaren Higgins } 33247eece5a0SKaren Higgins } 33257eece5a0SKaren Higgins 33267eece5a0SKaren Higgins /** 3327afaf5a2dSDavid Somayajulu * qla4xxx_remove_adapter - calback function to remove adapter. 3328afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 3329afaf5a2dSDavid Somayajulu **/ 3330afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 3331afaf5a2dSDavid Somayajulu { 3332afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 3333afaf5a2dSDavid Somayajulu 3334afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 3335afaf5a2dSDavid Somayajulu 33367eece5a0SKaren Higgins if (!is_qla8022(ha)) 33377eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 3338bee4fe8eSDavid C Somayajulu 3339ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 3340ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 3341ed1086e0SVikas Chaudhary 33422a991c21SManish Rangankar if (ha->boot_kset) 33432a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 33442a991c21SManish Rangankar 3345afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 3346afaf5a2dSDavid Somayajulu 3347afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 3348afaf5a2dSDavid Somayajulu 3349afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 3350afaf5a2dSDavid Somayajulu 33512232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 3352f4f5df23SVikas Chaudhary pci_disable_device(pdev); 3353afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 3354afaf5a2dSDavid Somayajulu } 3355afaf5a2dSDavid Somayajulu 3356afaf5a2dSDavid Somayajulu /** 3357afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 3358afaf5a2dSDavid Somayajulu * @ha: HA context 3359afaf5a2dSDavid Somayajulu * 3360afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 3361afaf5a2dSDavid Somayajulu * supported addressing method. 3362afaf5a2dSDavid Somayajulu */ 336347975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 3364afaf5a2dSDavid Somayajulu { 3365afaf5a2dSDavid Somayajulu int retval; 3366afaf5a2dSDavid Somayajulu 3367afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 33686a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 33696a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 3370afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 3371afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 3372afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 3373afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 3374284901a9SYang Hongyang DMA_BIT_MASK(32)); 3375afaf5a2dSDavid Somayajulu } 3376afaf5a2dSDavid Somayajulu } else 3377284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 3378afaf5a2dSDavid Somayajulu } 3379afaf5a2dSDavid Somayajulu 3380afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 3381afaf5a2dSDavid Somayajulu { 3382b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 3383b3a271a9SManish Rangankar struct iscsi_session *sess; 3384b3a271a9SManish Rangankar struct ddb_entry *ddb; 33858bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 3386afaf5a2dSDavid Somayajulu 3387b3a271a9SManish Rangankar cls_sess = starget_to_session(sdev->sdev_target); 3388b3a271a9SManish Rangankar sess = cls_sess->dd_data; 3389b3a271a9SManish Rangankar ddb = sess->dd_data; 3390b3a271a9SManish Rangankar 3391afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 3392afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 33938bb4033dSVikas Chaudhary 33948bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 33958bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 33968bb4033dSVikas Chaudhary 33978bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 3398afaf5a2dSDavid Somayajulu return 0; 3399afaf5a2dSDavid Somayajulu } 3400afaf5a2dSDavid Somayajulu 3401afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 3402afaf5a2dSDavid Somayajulu { 3403afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 3404afaf5a2dSDavid Somayajulu return 0; 3405afaf5a2dSDavid Somayajulu } 3406afaf5a2dSDavid Somayajulu 3407afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 3408afaf5a2dSDavid Somayajulu { 3409afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 3410afaf5a2dSDavid Somayajulu } 3411afaf5a2dSDavid Somayajulu 3412afaf5a2dSDavid Somayajulu /** 3413afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 3414afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 3415fd589a8fSAnand Gadiyar * @index: index into the active_array 3416afaf5a2dSDavid Somayajulu * 3417afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 3418afaf5a2dSDavid Somayajulu **/ 3419f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 3420f4f5df23SVikas Chaudhary uint32_t index) 3421afaf5a2dSDavid Somayajulu { 3422afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 34235369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 3424afaf5a2dSDavid Somayajulu 34255369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 34265369887aSVikas Chaudhary if (!cmd) 3427afaf5a2dSDavid Somayajulu return srb; 3428afaf5a2dSDavid Somayajulu 34295369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 34305369887aSVikas Chaudhary if (!srb) 3431afaf5a2dSDavid Somayajulu return srb; 3432afaf5a2dSDavid Somayajulu 3433afaf5a2dSDavid Somayajulu /* update counters */ 3434afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 3435afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 3436afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 3437afaf5a2dSDavid Somayajulu if (srb->cmd) 34385369887aSVikas Chaudhary srb->cmd->host_scribble = 34395369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 3440afaf5a2dSDavid Somayajulu } 3441afaf5a2dSDavid Somayajulu return srb; 3442afaf5a2dSDavid Somayajulu } 3443afaf5a2dSDavid Somayajulu 3444afaf5a2dSDavid Somayajulu /** 3445afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 344609a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 3447afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 3448afaf5a2dSDavid Somayajulu * 3449afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 3450afaf5a2dSDavid Somayajulu * for some max time. 3451afaf5a2dSDavid Somayajulu **/ 3452afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 3453afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 3454afaf5a2dSDavid Somayajulu { 3455afaf5a2dSDavid Somayajulu int done = 0; 3456afaf5a2dSDavid Somayajulu struct srb *rp; 3457afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 34582232be0dSLalit Chandivade int ret = SUCCESS; 34592232be0dSLalit Chandivade 34602232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 34612232be0dSLalit Chandivade * by PCI AER driver 34622232be0dSLalit Chandivade */ 34632232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 34642232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 34652232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 34662232be0dSLalit Chandivade ha->host_no, __func__); 34672232be0dSLalit Chandivade return ret; 34682232be0dSLalit Chandivade } 3469afaf5a2dSDavid Somayajulu 3470afaf5a2dSDavid Somayajulu do { 3471afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 34725369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 3473afaf5a2dSDavid Somayajulu if (rp == NULL) { 3474afaf5a2dSDavid Somayajulu done++; 3475afaf5a2dSDavid Somayajulu break; 3476afaf5a2dSDavid Somayajulu } 3477afaf5a2dSDavid Somayajulu 3478afaf5a2dSDavid Somayajulu msleep(2000); 3479afaf5a2dSDavid Somayajulu } while (max_wait_time--); 3480afaf5a2dSDavid Somayajulu 3481afaf5a2dSDavid Somayajulu return done; 3482afaf5a2dSDavid Somayajulu } 3483afaf5a2dSDavid Somayajulu 3484afaf5a2dSDavid Somayajulu /** 3485afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 3486afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 3487afaf5a2dSDavid Somayajulu **/ 3488afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 3489afaf5a2dSDavid Somayajulu { 3490afaf5a2dSDavid Somayajulu unsigned long wait_online; 3491afaf5a2dSDavid Somayajulu 3492f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 3493afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 3494afaf5a2dSDavid Somayajulu 3495afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 3496afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 3497afaf5a2dSDavid Somayajulu 3498afaf5a2dSDavid Somayajulu msleep(2000); 3499afaf5a2dSDavid Somayajulu } 3500afaf5a2dSDavid Somayajulu 3501afaf5a2dSDavid Somayajulu return QLA_ERROR; 3502afaf5a2dSDavid Somayajulu } 3503afaf5a2dSDavid Somayajulu 3504afaf5a2dSDavid Somayajulu /** 3505ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 3506fd589a8fSAnand Gadiyar * @ha: pointer to HBA 3507afaf5a2dSDavid Somayajulu * @t: target id 3508afaf5a2dSDavid Somayajulu * @l: lun id 3509afaf5a2dSDavid Somayajulu * 3510afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 3511afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 3512afaf5a2dSDavid Somayajulu **/ 3513ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 3514ce545039SMike Christie struct scsi_target *stgt, 3515ce545039SMike Christie struct scsi_device *sdev) 3516afaf5a2dSDavid Somayajulu { 3517afaf5a2dSDavid Somayajulu int cnt; 3518afaf5a2dSDavid Somayajulu int status = 0; 3519afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 3520afaf5a2dSDavid Somayajulu 3521afaf5a2dSDavid Somayajulu /* 3522ce545039SMike Christie * Waiting for all commands for the designated target or dev 3523ce545039SMike Christie * in the active array 3524afaf5a2dSDavid Somayajulu */ 3525afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 3526afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 3527ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 3528ce545039SMike Christie (!sdev || sdev == cmd->device)) { 3529afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 3530afaf5a2dSDavid Somayajulu status++; 3531afaf5a2dSDavid Somayajulu break; 3532afaf5a2dSDavid Somayajulu } 3533afaf5a2dSDavid Somayajulu } 3534afaf5a2dSDavid Somayajulu } 3535afaf5a2dSDavid Somayajulu return status; 3536afaf5a2dSDavid Somayajulu } 3537afaf5a2dSDavid Somayajulu 3538afaf5a2dSDavid Somayajulu /** 353909a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 354009a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 354109a0f719SVikas Chaudhary * 354209a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 354309a0f719SVikas Chaudhary * command. 354409a0f719SVikas Chaudhary **/ 354509a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 354609a0f719SVikas Chaudhary { 354709a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 354809a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 354909a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 355092b3e5bbSMike Christie unsigned long flags; 355109a0f719SVikas Chaudhary struct srb *srb = NULL; 355209a0f719SVikas Chaudhary int ret = SUCCESS; 355309a0f719SVikas Chaudhary int wait = 0; 355409a0f719SVikas Chaudhary 3555c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 35565cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 35575cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 355809a0f719SVikas Chaudhary 355992b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 356009a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 356192b3e5bbSMike Christie if (!srb) { 356292b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 356309a0f719SVikas Chaudhary return SUCCESS; 356492b3e5bbSMike Christie } 356509a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 356692b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 356709a0f719SVikas Chaudhary 356809a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 356909a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 357009a0f719SVikas Chaudhary ha->host_no, id, lun)); 357109a0f719SVikas Chaudhary ret = FAILED; 357209a0f719SVikas Chaudhary } else { 357309a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 357409a0f719SVikas Chaudhary ha->host_no, id, lun)); 357509a0f719SVikas Chaudhary wait = 1; 357609a0f719SVikas Chaudhary } 357709a0f719SVikas Chaudhary 357809a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 357909a0f719SVikas Chaudhary 358009a0f719SVikas Chaudhary /* Wait for command to complete */ 358109a0f719SVikas Chaudhary if (wait) { 358209a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 358309a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 358409a0f719SVikas Chaudhary ha->host_no, id, lun)); 358509a0f719SVikas Chaudhary ret = FAILED; 358609a0f719SVikas Chaudhary } 358709a0f719SVikas Chaudhary } 358809a0f719SVikas Chaudhary 3589c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 359009a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 359125985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 359209a0f719SVikas Chaudhary 359309a0f719SVikas Chaudhary return ret; 359409a0f719SVikas Chaudhary } 359509a0f719SVikas Chaudhary 359609a0f719SVikas Chaudhary /** 3597afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 3598afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 3599afaf5a2dSDavid Somayajulu * 3600afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 3601afaf5a2dSDavid Somayajulu * specified target. 3602afaf5a2dSDavid Somayajulu **/ 3603afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 3604afaf5a2dSDavid Somayajulu { 3605afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 3606afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 3607afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 3608afaf5a2dSDavid Somayajulu 3609612f7348SKaren Higgins if (!ddb_entry) 3610afaf5a2dSDavid Somayajulu return ret; 3611afaf5a2dSDavid Somayajulu 3612c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 3613c01be6dcSMike Christie if (ret) 3614c01be6dcSMike Christie return ret; 3615c01be6dcSMike Christie ret = FAILED; 3616c01be6dcSMike Christie 3617c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3618afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 3619afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 3620afaf5a2dSDavid Somayajulu 3621afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 3622afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 3623afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 3624242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 3625afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 3626afaf5a2dSDavid Somayajulu 3627afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 3628afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 3629afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 3630c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 3631afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 3632afaf5a2dSDavid Somayajulu } 3633afaf5a2dSDavid Somayajulu 3634ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 3635ce545039SMike Christie cmd->device)) { 3636c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3637afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 3638afaf5a2dSDavid Somayajulu "commands.\n"); 3639afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 3640afaf5a2dSDavid Somayajulu } 3641afaf5a2dSDavid Somayajulu 36429d562913SDavid C Somayajulu /* Send marker. */ 36439d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 36449d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 36459d562913SDavid C Somayajulu goto eh_dev_reset_done; 36469d562913SDavid C Somayajulu 3647c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3648afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 3649afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 3650afaf5a2dSDavid Somayajulu cmd->device->lun); 3651afaf5a2dSDavid Somayajulu 3652afaf5a2dSDavid Somayajulu ret = SUCCESS; 3653afaf5a2dSDavid Somayajulu 3654afaf5a2dSDavid Somayajulu eh_dev_reset_done: 3655afaf5a2dSDavid Somayajulu 3656afaf5a2dSDavid Somayajulu return ret; 3657afaf5a2dSDavid Somayajulu } 3658afaf5a2dSDavid Somayajulu 3659afaf5a2dSDavid Somayajulu /** 3660ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 3661ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 3662ce545039SMike Christie * 3663ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 3664ce545039SMike Christie **/ 3665ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 3666ce545039SMike Christie { 3667ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 3668ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 3669c01be6dcSMike Christie int stat, ret; 3670ce545039SMike Christie 3671ce545039SMike Christie if (!ddb_entry) 3672ce545039SMike Christie return FAILED; 3673ce545039SMike Christie 3674c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 3675c01be6dcSMike Christie if (ret) 3676c01be6dcSMike Christie return ret; 3677c01be6dcSMike Christie 3678ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3679ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 3680ce545039SMike Christie 3681ce545039SMike Christie DEBUG2(printk(KERN_INFO 3682ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 3683ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 3684242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 3685ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 3686ce545039SMike Christie 3687ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 3688ce545039SMike Christie if (stat != QLA_SUCCESS) { 3689ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3690ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 3691ce545039SMike Christie return FAILED; 3692ce545039SMike Christie } 3693ce545039SMike Christie 3694ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 3695ce545039SMike Christie NULL)) { 3696ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3697ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 3698ce545039SMike Christie "waiting for commands.\n"); 3699ce545039SMike Christie return FAILED; 3700ce545039SMike Christie } 3701ce545039SMike Christie 37029d562913SDavid C Somayajulu /* Send marker. */ 37039d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 37049d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 37059d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 37069d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 37079d562913SDavid C Somayajulu "marker iocb failed.\n"); 37089d562913SDavid C Somayajulu return FAILED; 37099d562913SDavid C Somayajulu } 37109d562913SDavid C Somayajulu 3711ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3712ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 3713ce545039SMike Christie return SUCCESS; 3714ce545039SMike Christie } 3715ce545039SMike Christie 3716ce545039SMike Christie /** 3717afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 3718afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 3719afaf5a2dSDavid Somayajulu * 3720afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 3721afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 3722afaf5a2dSDavid Somayajulu **/ 3723afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 3724afaf5a2dSDavid Somayajulu { 3725afaf5a2dSDavid Somayajulu int return_status = FAILED; 3726afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 3727afaf5a2dSDavid Somayajulu 3728b3a271a9SManish Rangankar ha = to_qla_host(cmd->device->host); 3729afaf5a2dSDavid Somayajulu 3730f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 3731f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 3732f4f5df23SVikas Chaudhary ha->host_no, __func__)); 3733f4f5df23SVikas Chaudhary return FAILED; 3734f4f5df23SVikas Chaudhary } 3735f4f5df23SVikas Chaudhary 3736c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3737dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 3738afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 3739afaf5a2dSDavid Somayajulu 3740afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 3741afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 3742afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 3743afaf5a2dSDavid Somayajulu __func__)); 3744afaf5a2dSDavid Somayajulu 3745afaf5a2dSDavid Somayajulu return FAILED; 3746afaf5a2dSDavid Somayajulu } 3747afaf5a2dSDavid Somayajulu 3748f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 3749f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 3750f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3751f4f5df23SVikas Chaudhary else 3752f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 3753f4f5df23SVikas Chaudhary } 375450a29aecSMike Christie 3755f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 3756afaf5a2dSDavid Somayajulu return_status = SUCCESS; 3757afaf5a2dSDavid Somayajulu 3758c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 375925985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 3760afaf5a2dSDavid Somayajulu 3761afaf5a2dSDavid Somayajulu return return_status; 3762afaf5a2dSDavid Somayajulu } 3763afaf5a2dSDavid Somayajulu 37642232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 37652232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 37662232be0dSLalit Chandivade * driver calls the following device driver's callbacks 37672232be0dSLalit Chandivade * 37682232be0dSLalit Chandivade * - Fatal Errors - link_reset 37692232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 37702232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 37712232be0dSLalit Chandivade * 37722232be0dSLalit Chandivade * PCI AER driver calls 37732232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 37742232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 37752232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 37762232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 37772232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 37782232be0dSLalit Chandivade */ 37792232be0dSLalit Chandivade static pci_ers_result_t 37802232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 37812232be0dSLalit Chandivade { 37822232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 37832232be0dSLalit Chandivade 37842232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 37852232be0dSLalit Chandivade ha->host_no, __func__, state); 37862232be0dSLalit Chandivade 37872232be0dSLalit Chandivade if (!is_aer_supported(ha)) 37882232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 37892232be0dSLalit Chandivade 37902232be0dSLalit Chandivade switch (state) { 37912232be0dSLalit Chandivade case pci_channel_io_normal: 37922232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 37932232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 37942232be0dSLalit Chandivade case pci_channel_io_frozen: 37952232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 37962232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 37972232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 37982232be0dSLalit Chandivade pci_disable_device(pdev); 37997b3595dfSVikas Chaudhary /* Return back all IOs */ 38007b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 38012232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 38022232be0dSLalit Chandivade case pci_channel_io_perm_failure: 38032232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 38042232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 38052232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 38062232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 38072232be0dSLalit Chandivade } 38082232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 38092232be0dSLalit Chandivade } 38102232be0dSLalit Chandivade 38112232be0dSLalit Chandivade /** 38122232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 38132232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 38142232be0dSLalit Chandivade * and read/write to the device still works. 38152232be0dSLalit Chandivade **/ 38162232be0dSLalit Chandivade static pci_ers_result_t 38172232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 38182232be0dSLalit Chandivade { 38192232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 38202232be0dSLalit Chandivade 38212232be0dSLalit Chandivade if (!is_aer_supported(ha)) 38222232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 38232232be0dSLalit Chandivade 38242232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 38252232be0dSLalit Chandivade } 38262232be0dSLalit Chandivade 38277b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 38282232be0dSLalit Chandivade { 38292232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 38307b3595dfSVikas Chaudhary uint32_t ret = 0; 38312232be0dSLalit Chandivade int fn; 38322232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 38332232be0dSLalit Chandivade 38342232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 38352232be0dSLalit Chandivade 38362232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 38372232be0dSLalit Chandivade 38382232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 38392232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 3840b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 3841b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 38422232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 38432232be0dSLalit Chandivade } 38442232be0dSLalit Chandivade 38452232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 38462232be0dSLalit Chandivade while (fn > 0) { 38472232be0dSLalit Chandivade fn--; 38482232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 38492232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 38502232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 38512232be0dSLalit Chandivade * slot/function number */ 38522232be0dSLalit Chandivade other_pdev = 38532232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 38542232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 38552232be0dSLalit Chandivade fn)); 38562232be0dSLalit Chandivade 38572232be0dSLalit Chandivade if (!other_pdev) 38582232be0dSLalit Chandivade continue; 38592232be0dSLalit Chandivade 38602232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 38612232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 38622232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 38632232be0dSLalit Chandivade __func__, fn); 38642232be0dSLalit Chandivade pci_dev_put(other_pdev); 38652232be0dSLalit Chandivade break; 38662232be0dSLalit Chandivade } 38672232be0dSLalit Chandivade pci_dev_put(other_pdev); 38682232be0dSLalit Chandivade } 38692232be0dSLalit Chandivade 38702232be0dSLalit Chandivade /* The first function on the card, the reset owner will 38712232be0dSLalit Chandivade * start & initialize the firmware. The other functions 38722232be0dSLalit Chandivade * on the card will reset the firmware context 38732232be0dSLalit Chandivade */ 38742232be0dSLalit Chandivade if (!fn) { 38752232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 38762232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 38772232be0dSLalit Chandivade ha->pdev->devfn); 38782232be0dSLalit Chandivade 38792232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 38802232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 38812232be0dSLalit Chandivade QLA82XX_DEV_COLD); 38822232be0dSLalit Chandivade 38832232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 38842232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 38852232be0dSLalit Chandivade 38862232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 38872232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 38880e7e8501SManish Rangankar rval = qla4xxx_initialize_adapter(ha); 38892232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 38902232be0dSLalit Chandivade 38912232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 38922232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 38932232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 38942232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 38952232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 38962232be0dSLalit Chandivade QLA82XX_DEV_FAILED); 38972232be0dSLalit Chandivade } else { 38982232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 38992232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 39002232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 39012232be0dSLalit Chandivade QLA82XX_DEV_READY); 39022232be0dSLalit Chandivade /* Clear driver state register */ 39032232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 39042232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 39057b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 39067b3595dfSVikas Chaudhary if (ret) { 39077b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 39087b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 39097b3595dfSVikas Chaudhary ha->pdev->irq); 39107b3595dfSVikas Chaudhary rval = QLA_ERROR; 39117b3595dfSVikas Chaudhary } else { 39122232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 39137b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 39147b3595dfSVikas Chaudhary } 39152232be0dSLalit Chandivade } 39162232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 39172232be0dSLalit Chandivade } else { 39182232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 39192232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 39202232be0dSLalit Chandivade ha->pdev->devfn); 39212232be0dSLalit Chandivade if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 39222232be0dSLalit Chandivade QLA82XX_DEV_READY)) { 39232232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 39240e7e8501SManish Rangankar rval = qla4xxx_initialize_adapter(ha); 39257b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 39267b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 39277b3595dfSVikas Chaudhary if (ret) { 39287b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 39297b3595dfSVikas Chaudhary " reserve interrupt %d already in" 39307b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 39317b3595dfSVikas Chaudhary rval = QLA_ERROR; 39327b3595dfSVikas Chaudhary } else { 39332232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 39347b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 39357b3595dfSVikas Chaudhary } 39367b3595dfSVikas Chaudhary } 39372232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 39382232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 39392232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 39402232be0dSLalit Chandivade } 39412232be0dSLalit Chandivade } 39422232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 39432232be0dSLalit Chandivade return rval; 39442232be0dSLalit Chandivade } 39452232be0dSLalit Chandivade 39462232be0dSLalit Chandivade static pci_ers_result_t 39472232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 39482232be0dSLalit Chandivade { 39492232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 39502232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 39512232be0dSLalit Chandivade int rc; 39522232be0dSLalit Chandivade 39532232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 39542232be0dSLalit Chandivade ha->host_no, __func__); 39552232be0dSLalit Chandivade 39562232be0dSLalit Chandivade if (!is_aer_supported(ha)) 39572232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 39582232be0dSLalit Chandivade 39592232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 39602232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 39612232be0dSLalit Chandivade * IOV states 39622232be0dSLalit Chandivade */ 39632232be0dSLalit Chandivade pci_restore_state(pdev); 39642232be0dSLalit Chandivade 39652232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 39662232be0dSLalit Chandivade * save restored state which resets saved_state flag 39672232be0dSLalit Chandivade */ 39682232be0dSLalit Chandivade pci_save_state(pdev); 39692232be0dSLalit Chandivade 39702232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 39712232be0dSLalit Chandivade rc = pci_enable_device(pdev); 39722232be0dSLalit Chandivade if (rc) { 397325985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 39742232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 39752232be0dSLalit Chandivade goto exit_slot_reset; 39762232be0dSLalit Chandivade } 39772232be0dSLalit Chandivade 39787b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 39792232be0dSLalit Chandivade 39802232be0dSLalit Chandivade if (is_qla8022(ha)) { 39812232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 39822232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 39832232be0dSLalit Chandivade goto exit_slot_reset; 39842232be0dSLalit Chandivade } else 39852232be0dSLalit Chandivade goto exit_slot_reset; 39862232be0dSLalit Chandivade } 39872232be0dSLalit Chandivade 39882232be0dSLalit Chandivade exit_slot_reset: 39892232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 39902232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 39912232be0dSLalit Chandivade return ret; 39922232be0dSLalit Chandivade } 39932232be0dSLalit Chandivade 39942232be0dSLalit Chandivade static void 39952232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 39962232be0dSLalit Chandivade { 39972232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 39982232be0dSLalit Chandivade int ret; 39992232be0dSLalit Chandivade 40002232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 40012232be0dSLalit Chandivade ha->host_no, __func__); 40022232be0dSLalit Chandivade 40032232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 40042232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 40052232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 40062232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 40072232be0dSLalit Chandivade __func__); 40082232be0dSLalit Chandivade } 40092232be0dSLalit Chandivade 40102232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 40112232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 40122232be0dSLalit Chandivade } 40132232be0dSLalit Chandivade 40142232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 40152232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 40162232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 40172232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 40182232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 40192232be0dSLalit Chandivade }; 40202232be0dSLalit Chandivade 4021afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 4022afaf5a2dSDavid Somayajulu { 4023afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 4024afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 4025afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 4026afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 4027afaf5a2dSDavid Somayajulu }, 4028afaf5a2dSDavid Somayajulu { 4029afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 4030afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 4031afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 4032afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 4033afaf5a2dSDavid Somayajulu }, 4034d915058fSDavid C Somayajulu { 4035d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 4036d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 4037d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 4038d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 4039d915058fSDavid C Somayajulu }, 4040f4f5df23SVikas Chaudhary { 4041f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 4042f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 4043f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 4044f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 4045f4f5df23SVikas Chaudhary }, 4046afaf5a2dSDavid Somayajulu {0, 0}, 4047afaf5a2dSDavid Somayajulu }; 4048afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 4049afaf5a2dSDavid Somayajulu 405047975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 4051afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 4052afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 4053afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 4054afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 40552232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 4056afaf5a2dSDavid Somayajulu }; 4057afaf5a2dSDavid Somayajulu 4058afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 4059afaf5a2dSDavid Somayajulu { 4060afaf5a2dSDavid Somayajulu int ret; 4061afaf5a2dSDavid Somayajulu 4062afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 4063afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 406420c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 4065afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 4066afaf5a2dSDavid Somayajulu printk(KERN_ERR 4067afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 4068afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 4069afaf5a2dSDavid Somayajulu ret = -ENOMEM; 4070afaf5a2dSDavid Somayajulu goto no_srp_cache; 4071afaf5a2dSDavid Somayajulu } 4072afaf5a2dSDavid Somayajulu 4073afaf5a2dSDavid Somayajulu /* Derive version string. */ 4074afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 407511010fecSAndrew Vasquez if (ql4xextended_error_logging) 4076afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 4077afaf5a2dSDavid Somayajulu 4078afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 4079afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 4080afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 4081afaf5a2dSDavid Somayajulu ret = -ENODEV; 4082afaf5a2dSDavid Somayajulu goto release_srb_cache; 4083afaf5a2dSDavid Somayajulu } 4084afaf5a2dSDavid Somayajulu 4085afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 4086afaf5a2dSDavid Somayajulu if (ret) 4087afaf5a2dSDavid Somayajulu goto unregister_transport; 4088afaf5a2dSDavid Somayajulu 4089afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 4090afaf5a2dSDavid Somayajulu return 0; 40915ae16db3SDoug Maxey 4092afaf5a2dSDavid Somayajulu unregister_transport: 4093afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 4094afaf5a2dSDavid Somayajulu release_srb_cache: 4095afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 4096afaf5a2dSDavid Somayajulu no_srp_cache: 4097afaf5a2dSDavid Somayajulu return ret; 4098afaf5a2dSDavid Somayajulu } 4099afaf5a2dSDavid Somayajulu 4100afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 4101afaf5a2dSDavid Somayajulu { 4102afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 4103afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 4104afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 4105afaf5a2dSDavid Somayajulu } 4106afaf5a2dSDavid Somayajulu 4107afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 4108afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 4109afaf5a2dSDavid Somayajulu 4110afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 4111afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 4112afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 4113afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 4114