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: 234b78dbba0SMike Christie return S_IRUGO; 235b78dbba0SMike Christie default: 236b78dbba0SMike Christie return 0; 237b78dbba0SMike Christie } 2383128c6c7SMike Christie } 2393128c6c7SMike Christie 2403128c6c7SMike Christie return 0; 2413128c6c7SMike Christie } 2423128c6c7SMike Christie 243ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 244ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 245ed1086e0SVikas Chaudhary int param, char *buf) 246ed1086e0SVikas Chaudhary { 247ed1086e0SVikas Chaudhary struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 248ed1086e0SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 249ed1086e0SVikas Chaudhary int len = -ENOSYS; 250ed1086e0SVikas Chaudhary 251ed1086e0SVikas Chaudhary if (param_type != ISCSI_NET_PARAM) 252ed1086e0SVikas Chaudhary return -ENOSYS; 253ed1086e0SVikas Chaudhary 254ed1086e0SVikas Chaudhary switch (param) { 255ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_ADDR: 256ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 257ed1086e0SVikas Chaudhary break; 258ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_SUBNET: 259ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 260ed1086e0SVikas Chaudhary break; 261ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_GW: 262ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 263ed1086e0SVikas Chaudhary break; 264ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IFACE_ENABLE: 265ed1086e0SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 266ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 267ed1086e0SVikas Chaudhary (ha->ip_config.ipv4_options & 268ed1086e0SVikas Chaudhary IPOPT_IPV4_PROTOCOL_ENABLE) ? 269ed1086e0SVikas Chaudhary "enabled" : "disabled"); 270ed1086e0SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 271ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 272ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_options & 273ed1086e0SVikas Chaudhary IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 274ed1086e0SVikas Chaudhary "enabled" : "disabled"); 275ed1086e0SVikas Chaudhary break; 276ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 277ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 278ed1086e0SVikas Chaudhary (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 279ed1086e0SVikas Chaudhary "dhcp" : "static"); 280ed1086e0SVikas Chaudhary break; 281ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR: 282ed1086e0SVikas Chaudhary if (iface->iface_num == 0) 283ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 284ed1086e0SVikas Chaudhary if (iface->iface_num == 1) 285ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 286ed1086e0SVikas Chaudhary break; 287ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 288ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 289ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr); 290ed1086e0SVikas Chaudhary break; 291ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ROUTER: 292ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 293ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_default_router_addr); 294ed1086e0SVikas Chaudhary break; 295ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 296ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 297ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 298ed1086e0SVikas Chaudhary IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 299ed1086e0SVikas Chaudhary "nd" : "static"); 300ed1086e0SVikas Chaudhary break; 301ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 302ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 303ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 304ed1086e0SVikas Chaudhary IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 305ed1086e0SVikas Chaudhary "auto" : "static"); 306ed1086e0SVikas Chaudhary break; 3076ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 3086ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3096ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3106ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_vlan_tag & 3116ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3126ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3136ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3146ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_vlan_tag & 3156ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3166ac73e8cSVikas Chaudhary break; 3176ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 3186ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3196ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3206ac73e8cSVikas Chaudhary ((ha->ip_config.ipv4_vlan_tag >> 13) & 3216ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3226ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3236ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3246ac73e8cSVikas Chaudhary ((ha->ip_config.ipv6_vlan_tag >> 13) & 3256ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3266ac73e8cSVikas Chaudhary break; 3276ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 3286ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3296ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3306ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_options & 3316ac73e8cSVikas Chaudhary IPOPT_VLAN_TAGGING_ENABLE) ? 3326ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3336ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3346ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3356ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_options & 3366ac73e8cSVikas Chaudhary IPV6_OPT_VLAN_TAGGING_ENABLE) ? 3376ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3386ac73e8cSVikas Chaudhary break; 339943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 340943c157bSVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 341943c157bSVikas Chaudhary break; 342ed1086e0SVikas Chaudhary default: 343ed1086e0SVikas Chaudhary len = -ENOSYS; 344ed1086e0SVikas Chaudhary } 345ed1086e0SVikas Chaudhary 346ed1086e0SVikas Chaudhary return len; 347ed1086e0SVikas Chaudhary } 348ed1086e0SVikas Chaudhary 349b3a271a9SManish Rangankar static struct iscsi_endpoint * 350b3a271a9SManish Rangankar qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 351b3a271a9SManish Rangankar int non_blocking) 352b3a271a9SManish Rangankar { 353b3a271a9SManish Rangankar int ret; 354b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 355b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 356b3a271a9SManish Rangankar struct scsi_qla_host *ha; 357b3a271a9SManish Rangankar struct sockaddr_in *addr; 358b3a271a9SManish Rangankar struct sockaddr_in6 *addr6; 359b3a271a9SManish Rangankar 360b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 361b3a271a9SManish Rangankar if (!shost) { 362b3a271a9SManish Rangankar ret = -ENXIO; 363b3a271a9SManish Rangankar printk(KERN_ERR "%s: shost is NULL\n", 364b3a271a9SManish Rangankar __func__); 365b3a271a9SManish Rangankar return ERR_PTR(ret); 366b3a271a9SManish Rangankar } 367b3a271a9SManish Rangankar 368b3a271a9SManish Rangankar ha = iscsi_host_priv(shost); 369b3a271a9SManish Rangankar 370b3a271a9SManish Rangankar ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 371b3a271a9SManish Rangankar if (!ep) { 372b3a271a9SManish Rangankar ret = -ENOMEM; 373b3a271a9SManish Rangankar return ERR_PTR(ret); 374b3a271a9SManish Rangankar } 375b3a271a9SManish Rangankar 376b3a271a9SManish Rangankar qla_ep = ep->dd_data; 377b3a271a9SManish Rangankar memset(qla_ep, 0, sizeof(struct qla_endpoint)); 378b3a271a9SManish Rangankar if (dst_addr->sa_family == AF_INET) { 379b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 380b3a271a9SManish Rangankar addr = (struct sockaddr_in *)&qla_ep->dst_addr; 381b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 382b3a271a9SManish Rangankar (char *)&addr->sin_addr)); 383b3a271a9SManish Rangankar } else if (dst_addr->sa_family == AF_INET6) { 384b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, 385b3a271a9SManish Rangankar sizeof(struct sockaddr_in6)); 386b3a271a9SManish Rangankar addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 387b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 388b3a271a9SManish Rangankar (char *)&addr6->sin6_addr)); 389b3a271a9SManish Rangankar } 390b3a271a9SManish Rangankar 391b3a271a9SManish Rangankar qla_ep->host = shost; 392b3a271a9SManish Rangankar 393b3a271a9SManish Rangankar return ep; 394b3a271a9SManish Rangankar } 395b3a271a9SManish Rangankar 396b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 397b3a271a9SManish Rangankar { 398b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 399b3a271a9SManish Rangankar struct scsi_qla_host *ha; 400b3a271a9SManish Rangankar int ret = 0; 401b3a271a9SManish Rangankar 402b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 403b3a271a9SManish Rangankar qla_ep = ep->dd_data; 404b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 405b3a271a9SManish Rangankar 406b3a271a9SManish Rangankar if (adapter_up(ha)) 407b3a271a9SManish Rangankar ret = 1; 408b3a271a9SManish Rangankar 409b3a271a9SManish Rangankar return ret; 410b3a271a9SManish Rangankar } 411b3a271a9SManish Rangankar 412b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 413b3a271a9SManish Rangankar { 414b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 415b3a271a9SManish Rangankar iscsi_destroy_endpoint(ep); 416b3a271a9SManish Rangankar } 417b3a271a9SManish Rangankar 418b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 419b3a271a9SManish Rangankar enum iscsi_param param, 420b3a271a9SManish Rangankar char *buf) 421b3a271a9SManish Rangankar { 422b3a271a9SManish Rangankar struct qla_endpoint *qla_ep = ep->dd_data; 423b3a271a9SManish Rangankar struct sockaddr *dst_addr; 424b3a271a9SManish Rangankar 425b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 426b3a271a9SManish Rangankar 427b3a271a9SManish Rangankar switch (param) { 428b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_PORT: 429b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_ADDRESS: 430b3a271a9SManish Rangankar if (!qla_ep) 431b3a271a9SManish Rangankar return -ENOTCONN; 432b3a271a9SManish Rangankar 433b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 434b3a271a9SManish Rangankar if (!dst_addr) 435b3a271a9SManish Rangankar return -ENOTCONN; 436b3a271a9SManish Rangankar 437b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 438b3a271a9SManish Rangankar &qla_ep->dst_addr, param, buf); 439b3a271a9SManish Rangankar default: 440b3a271a9SManish Rangankar return -ENOSYS; 441b3a271a9SManish Rangankar } 442b3a271a9SManish Rangankar } 443b3a271a9SManish Rangankar 444b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 445b3a271a9SManish Rangankar struct iscsi_stats *stats) 446b3a271a9SManish Rangankar { 447b3a271a9SManish Rangankar struct iscsi_session *sess; 448b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 449b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 450b3a271a9SManish Rangankar struct scsi_qla_host *ha; 451b3a271a9SManish Rangankar struct ql_iscsi_stats *ql_iscsi_stats; 452b3a271a9SManish Rangankar int stats_size; 453b3a271a9SManish Rangankar int ret; 454b3a271a9SManish Rangankar dma_addr_t iscsi_stats_dma; 455b3a271a9SManish Rangankar 456b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 457b3a271a9SManish Rangankar 458b3a271a9SManish Rangankar cls_sess = iscsi_conn_to_session(cls_conn); 459b3a271a9SManish Rangankar sess = cls_sess->dd_data; 460b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 461b3a271a9SManish Rangankar ha = ddb_entry->ha; 462b3a271a9SManish Rangankar 463b3a271a9SManish Rangankar stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 464b3a271a9SManish Rangankar /* Allocate memory */ 465b3a271a9SManish Rangankar ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 466b3a271a9SManish Rangankar &iscsi_stats_dma, GFP_KERNEL); 467b3a271a9SManish Rangankar if (!ql_iscsi_stats) { 468b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 469b3a271a9SManish Rangankar "Unable to allocate memory for iscsi stats\n"); 470b3a271a9SManish Rangankar goto exit_get_stats; 471b3a271a9SManish Rangankar } 472b3a271a9SManish Rangankar 473b3a271a9SManish Rangankar ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 474b3a271a9SManish Rangankar iscsi_stats_dma); 475b3a271a9SManish Rangankar if (ret != QLA_SUCCESS) { 476b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 477b3a271a9SManish Rangankar "Unable to retreive iscsi stats\n"); 478b3a271a9SManish Rangankar goto free_stats; 479b3a271a9SManish Rangankar } 480b3a271a9SManish Rangankar 481b3a271a9SManish Rangankar /* octets */ 482b3a271a9SManish Rangankar stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 483b3a271a9SManish Rangankar stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 484b3a271a9SManish Rangankar /* xmit pdus */ 485b3a271a9SManish Rangankar stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 486b3a271a9SManish Rangankar stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 487b3a271a9SManish Rangankar stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 488b3a271a9SManish Rangankar stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 489b3a271a9SManish Rangankar stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 490b3a271a9SManish Rangankar stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 491b3a271a9SManish Rangankar stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 492b3a271a9SManish Rangankar stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 493b3a271a9SManish Rangankar /* recv pdus */ 494b3a271a9SManish Rangankar stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 495b3a271a9SManish Rangankar stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 496b3a271a9SManish Rangankar stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 497b3a271a9SManish Rangankar stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 498b3a271a9SManish Rangankar stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 499b3a271a9SManish Rangankar stats->logoutrsp_pdus = 500b3a271a9SManish Rangankar le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 501b3a271a9SManish Rangankar stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 502b3a271a9SManish Rangankar stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 503b3a271a9SManish Rangankar stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 504b3a271a9SManish Rangankar 505b3a271a9SManish Rangankar free_stats: 506b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 507b3a271a9SManish Rangankar iscsi_stats_dma); 508b3a271a9SManish Rangankar exit_get_stats: 509b3a271a9SManish Rangankar return; 510b3a271a9SManish Rangankar } 511b3a271a9SManish Rangankar 5125c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 5135c656af7SMike Christie { 5145c656af7SMike Christie struct iscsi_cls_session *session; 515b3a271a9SManish Rangankar struct iscsi_session *sess; 516b3a271a9SManish Rangankar unsigned long flags; 517b3a271a9SManish Rangankar enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 5185c656af7SMike Christie 5195c656af7SMike Christie session = starget_to_session(scsi_target(sc->device)); 520b3a271a9SManish Rangankar sess = session->dd_data; 5215c656af7SMike Christie 522b3a271a9SManish Rangankar spin_lock_irqsave(&session->lock, flags); 523b3a271a9SManish Rangankar if (session->state == ISCSI_SESSION_FAILED) 524b3a271a9SManish Rangankar ret = BLK_EH_RESET_TIMER; 525b3a271a9SManish Rangankar spin_unlock_irqrestore(&session->lock, flags); 5265c656af7SMike Christie 527b3a271a9SManish Rangankar return ret; 528568d303bSMike Christie } 529afaf5a2dSDavid Somayajulu 530aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 531aa1e93a2SMike Christie enum iscsi_host_param param, char *buf) 532aa1e93a2SMike Christie { 533aa1e93a2SMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 534aa1e93a2SMike Christie int len; 535aa1e93a2SMike Christie 536aa1e93a2SMike Christie switch (param) { 537aa1e93a2SMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 5387ffc49a6SMichael Chan len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 539aa1e93a2SMike Christie break; 54022236961SMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 5412bab08fcSVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 54222236961SMike Christie break; 5438ad5781aSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 54422236961SMike Christie len = sprintf(buf, "%s\n", ha->name_string); 5458ad5781aSMike Christie break; 546aa1e93a2SMike Christie default: 547aa1e93a2SMike Christie return -ENOSYS; 548aa1e93a2SMike Christie } 549aa1e93a2SMike Christie 550aa1e93a2SMike Christie return len; 551aa1e93a2SMike Christie } 552aa1e93a2SMike Christie 553ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 554ed1086e0SVikas Chaudhary { 555ed1086e0SVikas Chaudhary if (ha->iface_ipv4) 556ed1086e0SVikas Chaudhary return; 557ed1086e0SVikas Chaudhary 558ed1086e0SVikas Chaudhary /* IPv4 */ 559ed1086e0SVikas Chaudhary ha->iface_ipv4 = iscsi_create_iface(ha->host, 560ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 561ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV4, 0, 0); 562ed1086e0SVikas Chaudhary if (!ha->iface_ipv4) 563ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 564ed1086e0SVikas Chaudhary "iface0.\n"); 565ed1086e0SVikas Chaudhary } 566ed1086e0SVikas Chaudhary 567ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 568ed1086e0SVikas Chaudhary { 569ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 570ed1086e0SVikas Chaudhary /* IPv6 iface-0 */ 571ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 572ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 573ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 0, 574ed1086e0SVikas Chaudhary 0); 575ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 576ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 577ed1086e0SVikas Chaudhary "iface0.\n"); 578ed1086e0SVikas Chaudhary 579ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 580ed1086e0SVikas Chaudhary /* IPv6 iface-1 */ 581ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 582ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 583ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 1, 584ed1086e0SVikas Chaudhary 0); 585ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 586ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 587ed1086e0SVikas Chaudhary "iface1.\n"); 588ed1086e0SVikas Chaudhary } 589ed1086e0SVikas Chaudhary 590ed1086e0SVikas Chaudhary static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 591ed1086e0SVikas Chaudhary { 592ed1086e0SVikas Chaudhary if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 593ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 594ed1086e0SVikas Chaudhary 595ed1086e0SVikas Chaudhary if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 596ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 597ed1086e0SVikas Chaudhary } 598ed1086e0SVikas Chaudhary 599ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 600ed1086e0SVikas Chaudhary { 601ed1086e0SVikas Chaudhary if (ha->iface_ipv4) { 602ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv4); 603ed1086e0SVikas Chaudhary ha->iface_ipv4 = NULL; 604ed1086e0SVikas Chaudhary } 605ed1086e0SVikas Chaudhary } 606ed1086e0SVikas Chaudhary 607ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 608ed1086e0SVikas Chaudhary { 609ed1086e0SVikas Chaudhary if (ha->iface_ipv6_0) { 610ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_0); 611ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = NULL; 612ed1086e0SVikas Chaudhary } 613ed1086e0SVikas Chaudhary if (ha->iface_ipv6_1) { 614ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_1); 615ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = NULL; 616ed1086e0SVikas Chaudhary } 617ed1086e0SVikas Chaudhary } 618ed1086e0SVikas Chaudhary 619ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 620ed1086e0SVikas Chaudhary { 621ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 622ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 623ed1086e0SVikas Chaudhary } 624ed1086e0SVikas Chaudhary 625d00efe3fSMike Christie static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 626d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 627d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 628d00efe3fSMike Christie { 629d00efe3fSMike Christie /* 630d00efe3fSMike Christie * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 631d00efe3fSMike Christie * iface_num 1 is valid only for IPv6 Addr. 632d00efe3fSMike Christie */ 633d00efe3fSMike Christie switch (iface_param->param) { 634d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 635d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 636d00efe3fSMike Christie /* IPv6 Addr 1 */ 637d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 638d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr1)); 639d00efe3fSMike Christie else 640d00efe3fSMike Christie /* IPv6 Addr 0 */ 641d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 642d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr0)); 643d00efe3fSMike Christie break; 644d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 645d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 646d00efe3fSMike Christie break; 647d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 648d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_if_id)); 649d00efe3fSMike Christie break; 650d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 651d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 652d00efe3fSMike Christie break; 653d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 654d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 655d00efe3fSMike Christie break; 656d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 657d00efe3fSMike Christie /* Autocfg applies to even interface */ 658d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 659d00efe3fSMike Christie break; 660d00efe3fSMike Christie 661d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 662d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= 663d00efe3fSMike Christie cpu_to_le16( 664d00efe3fSMike Christie ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 665d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 666d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= 667d00efe3fSMike Christie cpu_to_le16( 668d00efe3fSMike Christie IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 669d00efe3fSMike Christie else 670d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 671d00efe3fSMike Christie "IPv6 addr\n"); 672d00efe3fSMike Christie break; 673d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 674d00efe3fSMike Christie /* Autocfg applies to even interface */ 675d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 676d00efe3fSMike Christie break; 677d00efe3fSMike Christie 678d00efe3fSMike Christie if (iface_param->value[0] == 679d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 680d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 681d00efe3fSMike Christie IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 682d00efe3fSMike Christie else if (iface_param->value[0] == 683d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 684d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 685d00efe3fSMike Christie ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 686d00efe3fSMike Christie else 687d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 688d00efe3fSMike Christie "IPv6 linklocal addr\n"); 689d00efe3fSMike Christie break; 690d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 691d00efe3fSMike Christie /* Autocfg applies to even interface */ 692d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 693d00efe3fSMike Christie break; 694d00efe3fSMike Christie 695d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 696d00efe3fSMike Christie memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 697d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 698d00efe3fSMike Christie break; 699d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 700ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 701d00efe3fSMike Christie init_fw_cb->ipv6_opts |= 702d00efe3fSMike Christie cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 703ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 704ed1086e0SVikas Chaudhary } else { 705d00efe3fSMike Christie init_fw_cb->ipv6_opts &= 706d00efe3fSMike Christie cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 707d00efe3fSMike Christie 0xFFFF); 708ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 709ed1086e0SVikas Chaudhary } 710d00efe3fSMike Christie break; 711d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 712d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 713d00efe3fSMike Christie break; 7146ac73e8cSVikas Chaudhary init_fw_cb->ipv6_vlan_tag = 7156ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 7166ac73e8cSVikas Chaudhary break; 7176ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 7186ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 7196ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts |= 7206ac73e8cSVikas Chaudhary cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 7216ac73e8cSVikas Chaudhary else 7226ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts &= 7236ac73e8cSVikas Chaudhary cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 724d00efe3fSMike Christie break; 725943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 726943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 727943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 728943c157bSVikas Chaudhary break; 729d00efe3fSMike Christie default: 730d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 731d00efe3fSMike Christie iface_param->param); 732d00efe3fSMike Christie break; 733d00efe3fSMike Christie } 734d00efe3fSMike Christie } 735d00efe3fSMike Christie 736d00efe3fSMike Christie static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 737d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 738d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 739d00efe3fSMike Christie { 740d00efe3fSMike Christie switch (iface_param->param) { 741d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 742d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_addr, iface_param->value, 743d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_addr)); 744d00efe3fSMike Christie break; 745d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 746d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 747d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_subnet)); 748d00efe3fSMike Christie break; 749d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_GW: 750d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 751d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_gw_addr)); 752d00efe3fSMike Christie break; 753d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 754d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 755d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts |= 756d00efe3fSMike Christie cpu_to_le16(TCPOPT_DHCP_ENABLE); 757d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 758d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts &= 759d00efe3fSMike Christie cpu_to_le16(~TCPOPT_DHCP_ENABLE); 760d00efe3fSMike Christie else 761d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 762d00efe3fSMike Christie break; 763d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 764ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 765d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts |= 7662bab08fcSVikas Chaudhary cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 767ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 768ed1086e0SVikas Chaudhary } else { 769d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts &= 7702bab08fcSVikas Chaudhary cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 771d00efe3fSMike Christie 0xFFFF); 772ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 773ed1086e0SVikas Chaudhary } 774d00efe3fSMike Christie break; 775d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 776d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 777d00efe3fSMike Christie break; 7786ac73e8cSVikas Chaudhary init_fw_cb->ipv4_vlan_tag = 7796ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 7806ac73e8cSVikas Chaudhary break; 7816ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 7826ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 7836ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts |= 7846ac73e8cSVikas Chaudhary cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 7856ac73e8cSVikas Chaudhary else 7866ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts &= 7876ac73e8cSVikas Chaudhary cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 788d00efe3fSMike Christie break; 789943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 790943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 791943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 792943c157bSVikas Chaudhary break; 793d00efe3fSMike Christie default: 794d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 795d00efe3fSMike Christie iface_param->param); 796d00efe3fSMike Christie break; 797d00efe3fSMike Christie } 798d00efe3fSMike Christie } 799d00efe3fSMike Christie 800d00efe3fSMike Christie static void 801d00efe3fSMike Christie qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 802d00efe3fSMike Christie { 803d00efe3fSMike Christie struct addr_ctrl_blk_def *acb; 804d00efe3fSMike Christie acb = (struct addr_ctrl_blk_def *)init_fw_cb; 805d00efe3fSMike Christie memset(acb->reserved1, 0, sizeof(acb->reserved1)); 806d00efe3fSMike Christie memset(acb->reserved2, 0, sizeof(acb->reserved2)); 807d00efe3fSMike Christie memset(acb->reserved3, 0, sizeof(acb->reserved3)); 808d00efe3fSMike Christie memset(acb->reserved4, 0, sizeof(acb->reserved4)); 809d00efe3fSMike Christie memset(acb->reserved5, 0, sizeof(acb->reserved5)); 810d00efe3fSMike Christie memset(acb->reserved6, 0, sizeof(acb->reserved6)); 811d00efe3fSMike Christie memset(acb->reserved7, 0, sizeof(acb->reserved7)); 812d00efe3fSMike Christie memset(acb->reserved8, 0, sizeof(acb->reserved8)); 813d00efe3fSMike Christie memset(acb->reserved9, 0, sizeof(acb->reserved9)); 814d00efe3fSMike Christie memset(acb->reserved10, 0, sizeof(acb->reserved10)); 815d00efe3fSMike Christie memset(acb->reserved11, 0, sizeof(acb->reserved11)); 816d00efe3fSMike Christie memset(acb->reserved12, 0, sizeof(acb->reserved12)); 817d00efe3fSMike Christie memset(acb->reserved13, 0, sizeof(acb->reserved13)); 818d00efe3fSMike Christie memset(acb->reserved14, 0, sizeof(acb->reserved14)); 819d00efe3fSMike Christie memset(acb->reserved15, 0, sizeof(acb->reserved15)); 820d00efe3fSMike Christie } 821d00efe3fSMike Christie 822d00efe3fSMike Christie static int 823d00efe3fSMike Christie qla4xxx_iface_set_param(struct Scsi_Host *shost, char *data, int count) 824d00efe3fSMike Christie { 825d00efe3fSMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 826d00efe3fSMike Christie int rval = 0; 827d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param = NULL; 828d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb = NULL; 829d00efe3fSMike Christie dma_addr_t init_fw_cb_dma; 830d00efe3fSMike Christie uint32_t mbox_cmd[MBOX_REG_COUNT]; 831d00efe3fSMike Christie uint32_t mbox_sts[MBOX_REG_COUNT]; 832d00efe3fSMike Christie uint32_t total_param_count; 833d00efe3fSMike Christie uint32_t length; 834d00efe3fSMike Christie 835d00efe3fSMike Christie init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 836d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 837d00efe3fSMike Christie &init_fw_cb_dma, GFP_KERNEL); 838d00efe3fSMike Christie if (!init_fw_cb) { 839d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 840d00efe3fSMike Christie __func__); 841d00efe3fSMike Christie return -ENOMEM; 842d00efe3fSMike Christie } 843d00efe3fSMike Christie 844d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 845d00efe3fSMike Christie memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 846d00efe3fSMike Christie memset(&mbox_sts, 0, sizeof(mbox_sts)); 847d00efe3fSMike Christie 848d00efe3fSMike Christie if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 849d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 850d00efe3fSMike Christie rval = -EIO; 851d00efe3fSMike Christie goto exit_init_fw_cb; 852d00efe3fSMike Christie } 853d00efe3fSMike Christie 854d00efe3fSMike Christie total_param_count = count; 855d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *)data; 856d00efe3fSMike Christie 857d00efe3fSMike Christie for ( ; total_param_count != 0; total_param_count--) { 858d00efe3fSMike Christie length = iface_param->len; 859d00efe3fSMike Christie 860d00efe3fSMike Christie if (iface_param->param_type != ISCSI_NET_PARAM) 861d00efe3fSMike Christie continue; 862d00efe3fSMike Christie 863d00efe3fSMike Christie switch (iface_param->iface_type) { 864d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV4: 865d00efe3fSMike Christie switch (iface_param->iface_num) { 866d00efe3fSMike Christie case 0: 867d00efe3fSMike Christie qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 868d00efe3fSMike Christie break; 869d00efe3fSMike Christie default: 870d00efe3fSMike Christie /* Cannot have more than one IPv4 interface */ 871d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 872d00efe3fSMike Christie "number = %d\n", 873d00efe3fSMike Christie iface_param->iface_num); 874d00efe3fSMike Christie break; 875d00efe3fSMike Christie } 876d00efe3fSMike Christie break; 877d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV6: 878d00efe3fSMike Christie switch (iface_param->iface_num) { 879d00efe3fSMike Christie case 0: 880d00efe3fSMike Christie case 1: 881d00efe3fSMike Christie qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 882d00efe3fSMike Christie break; 883d00efe3fSMike Christie default: 884d00efe3fSMike Christie /* Cannot have more than two IPv6 interface */ 885d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 886d00efe3fSMike Christie "number = %d\n", 887d00efe3fSMike Christie iface_param->iface_num); 888d00efe3fSMike Christie break; 889d00efe3fSMike Christie } 890d00efe3fSMike Christie break; 891d00efe3fSMike Christie default: 892d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 893d00efe3fSMike Christie break; 894d00efe3fSMike Christie } 895d00efe3fSMike Christie 896d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *) 897d00efe3fSMike Christie ((uint8_t *)iface_param + 898d00efe3fSMike Christie sizeof(struct iscsi_iface_param_info) + length); 899d00efe3fSMike Christie } 900d00efe3fSMike Christie 901d00efe3fSMike Christie init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 902d00efe3fSMike Christie 903d00efe3fSMike Christie rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 904d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 905d00efe3fSMike Christie FLASH_OPT_RMW_COMMIT); 906d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 907d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 908d00efe3fSMike Christie __func__); 909d00efe3fSMike Christie rval = -EIO; 910d00efe3fSMike Christie goto exit_init_fw_cb; 911d00efe3fSMike Christie } 912d00efe3fSMike Christie 913d00efe3fSMike Christie qla4xxx_disable_acb(ha); 914d00efe3fSMike Christie 915d00efe3fSMike Christie qla4xxx_initcb_to_acb(init_fw_cb); 916d00efe3fSMike Christie 917d00efe3fSMike Christie rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 918d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 919d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 920d00efe3fSMike Christie __func__); 921d00efe3fSMike Christie rval = -EIO; 922d00efe3fSMike Christie goto exit_init_fw_cb; 923d00efe3fSMike Christie } 924d00efe3fSMike Christie 925d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 926d00efe3fSMike Christie qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 927d00efe3fSMike Christie init_fw_cb_dma); 928d00efe3fSMike Christie 929d00efe3fSMike Christie exit_init_fw_cb: 930d00efe3fSMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 931d00efe3fSMike Christie init_fw_cb, init_fw_cb_dma); 932d00efe3fSMike Christie 933d00efe3fSMike Christie return rval; 934d00efe3fSMike Christie } 935d00efe3fSMike Christie 936b3a271a9SManish Rangankar static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 937afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 938afaf5a2dSDavid Somayajulu { 939b3a271a9SManish Rangankar struct iscsi_conn *conn; 940b3a271a9SManish Rangankar struct qla_conn *qla_conn; 941b3a271a9SManish Rangankar struct sockaddr *dst_addr; 942b3a271a9SManish Rangankar int len = 0; 943afaf5a2dSDavid Somayajulu 944b3a271a9SManish Rangankar conn = cls_conn->dd_data; 945b3a271a9SManish Rangankar qla_conn = conn->dd_data; 946b3a271a9SManish Rangankar dst_addr = &qla_conn->qla_ep->dst_addr; 947afaf5a2dSDavid Somayajulu 948afaf5a2dSDavid Somayajulu switch (param) { 949afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_PORT: 950afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_ADDRESS: 951b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 952b3a271a9SManish Rangankar dst_addr, param, buf); 953afaf5a2dSDavid Somayajulu default: 954b3a271a9SManish Rangankar return iscsi_conn_get_param(cls_conn, param, buf); 955afaf5a2dSDavid Somayajulu } 956afaf5a2dSDavid Somayajulu 957afaf5a2dSDavid Somayajulu return len; 958b3a271a9SManish Rangankar 959afaf5a2dSDavid Somayajulu } 960afaf5a2dSDavid Somayajulu 961b3a271a9SManish Rangankar static struct iscsi_cls_session * 962b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, 963b3a271a9SManish Rangankar uint16_t cmds_max, uint16_t qdepth, 964b3a271a9SManish Rangankar uint32_t initial_cmdsn) 965b3a271a9SManish Rangankar { 966b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 967b3a271a9SManish Rangankar struct scsi_qla_host *ha; 968b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 969b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 970b3a271a9SManish Rangankar uint32_t ddb_index; 971b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 972b3a271a9SManish Rangankar struct iscsi_session *sess; 973b3a271a9SManish Rangankar struct sockaddr *dst_addr; 974b3a271a9SManish Rangankar int ret; 975b3a271a9SManish Rangankar 976b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 977b3a271a9SManish Rangankar if (!ep) { 978b3a271a9SManish Rangankar printk(KERN_ERR "qla4xxx: missing ep.\n"); 979b3a271a9SManish Rangankar return NULL; 980b3a271a9SManish Rangankar } 981b3a271a9SManish Rangankar 982b3a271a9SManish Rangankar qla_ep = ep->dd_data; 983b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 984b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 985b3a271a9SManish Rangankar get_ddb_index: 986b3a271a9SManish Rangankar ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 987b3a271a9SManish Rangankar 988b3a271a9SManish Rangankar if (ddb_index >= MAX_DDB_ENTRIES) { 989b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 990b3a271a9SManish Rangankar "Free DDB index not available\n")); 991b3a271a9SManish Rangankar return NULL; 992b3a271a9SManish Rangankar } 993b3a271a9SManish Rangankar 994b3a271a9SManish Rangankar if (test_and_set_bit(ddb_index, ha->ddb_idx_map)) 995b3a271a9SManish Rangankar goto get_ddb_index; 996b3a271a9SManish Rangankar 997b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 998b3a271a9SManish Rangankar "Found a free DDB index at %d\n", ddb_index)); 999b3a271a9SManish Rangankar ret = qla4xxx_req_ddb_entry(ha, ddb_index, &mbx_sts); 1000b3a271a9SManish Rangankar if (ret == QLA_ERROR) { 1001b3a271a9SManish Rangankar if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 1002b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 1003b3a271a9SManish Rangankar "DDB index = %d not available trying next\n", 1004b3a271a9SManish Rangankar ddb_index); 1005b3a271a9SManish Rangankar goto get_ddb_index; 1006b3a271a9SManish Rangankar } 1007b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 1008b3a271a9SManish Rangankar "Free FW DDB not available\n")); 1009b3a271a9SManish Rangankar return NULL; 1010b3a271a9SManish Rangankar } 1011b3a271a9SManish Rangankar 1012b3a271a9SManish Rangankar cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 1013b3a271a9SManish Rangankar cmds_max, sizeof(struct ddb_entry), 1014b3a271a9SManish Rangankar sizeof(struct ql4_task_data), 1015b3a271a9SManish Rangankar initial_cmdsn, ddb_index); 1016b3a271a9SManish Rangankar if (!cls_sess) 1017b3a271a9SManish Rangankar return NULL; 1018b3a271a9SManish Rangankar 1019b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1020b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1021b3a271a9SManish Rangankar ddb_entry->fw_ddb_index = ddb_index; 1022b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 1023b3a271a9SManish Rangankar ddb_entry->ha = ha; 1024b3a271a9SManish Rangankar ddb_entry->sess = cls_sess; 1025b3a271a9SManish Rangankar cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 1026b3a271a9SManish Rangankar ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1027b3a271a9SManish Rangankar ha->tot_ddbs++; 1028b3a271a9SManish Rangankar 1029b3a271a9SManish Rangankar return cls_sess; 1030b3a271a9SManish Rangankar } 1031b3a271a9SManish Rangankar 1032b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 1033b3a271a9SManish Rangankar { 1034b3a271a9SManish Rangankar struct iscsi_session *sess; 1035b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1036b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1037b3a271a9SManish Rangankar unsigned long flags; 1038b3a271a9SManish Rangankar 1039b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1040b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1041b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1042b3a271a9SManish Rangankar ha = ddb_entry->ha; 1043b3a271a9SManish Rangankar 1044b3a271a9SManish Rangankar spin_lock_irqsave(&ha->hardware_lock, flags); 1045b3a271a9SManish Rangankar qla4xxx_free_ddb(ha, ddb_entry); 1046b3a271a9SManish Rangankar spin_unlock_irqrestore(&ha->hardware_lock, flags); 1047b3a271a9SManish Rangankar iscsi_session_teardown(cls_sess); 1048b3a271a9SManish Rangankar } 1049b3a271a9SManish Rangankar 1050b3a271a9SManish Rangankar static struct iscsi_cls_conn * 1051b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 1052b3a271a9SManish Rangankar { 1053b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1054b3a271a9SManish Rangankar struct iscsi_session *sess; 1055b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1056b3a271a9SManish Rangankar 1057b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1058b3a271a9SManish Rangankar cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 1059b3a271a9SManish Rangankar conn_idx); 1060b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1061b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1062b3a271a9SManish Rangankar ddb_entry->conn = cls_conn; 1063b3a271a9SManish Rangankar 1064b3a271a9SManish Rangankar return cls_conn; 1065b3a271a9SManish Rangankar } 1066b3a271a9SManish Rangankar 1067b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 1068b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 1069b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading) 1070b3a271a9SManish Rangankar { 1071b3a271a9SManish Rangankar struct iscsi_conn *conn; 1072b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1073b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 1074b3a271a9SManish Rangankar 1075b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1076b3a271a9SManish Rangankar 1077b3a271a9SManish Rangankar if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 1078b3a271a9SManish Rangankar return -EINVAL; 1079b3a271a9SManish Rangankar ep = iscsi_lookup_endpoint(transport_fd); 1080b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1081b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1082b3a271a9SManish Rangankar qla_conn->qla_ep = ep->dd_data; 1083b3a271a9SManish Rangankar return 0; 1084b3a271a9SManish Rangankar } 1085b3a271a9SManish Rangankar 1086b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 1087b3a271a9SManish Rangankar { 1088b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1089b3a271a9SManish Rangankar struct iscsi_session *sess; 1090b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1091b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1092b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 1093b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1094b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 1095b3a271a9SManish Rangankar int ret = 0; 1096b3a271a9SManish Rangankar int status = QLA_SUCCESS; 1097b3a271a9SManish Rangankar 1098b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1099b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1100b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1101b3a271a9SManish Rangankar ha = ddb_entry->ha; 1102b3a271a9SManish Rangankar 1103b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1104b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1105b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1106b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1107b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 1108b3a271a9SManish Rangankar return -ENOMEM; 1109b3a271a9SManish Rangankar } 1110b3a271a9SManish Rangankar 1111b3a271a9SManish Rangankar ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 1112b3a271a9SManish Rangankar if (ret) { 1113b3a271a9SManish Rangankar /* If iscsid is stopped and started then no need to do 1114b3a271a9SManish Rangankar * set param again since ddb state will be already 1115b3a271a9SManish Rangankar * active and FW does not allow set ddb to an 1116b3a271a9SManish Rangankar * active session. 1117b3a271a9SManish Rangankar */ 1118b3a271a9SManish Rangankar if (mbx_sts) 1119b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == 1120b3a271a9SManish Rangankar DDB_DS_SESSION_ACTIVE) 1121b3a271a9SManish Rangankar goto exit_set_param; 1122b3a271a9SManish Rangankar 1123b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 1124b3a271a9SManish Rangankar __func__, ddb_entry->fw_ddb_index); 1125b3a271a9SManish Rangankar goto exit_conn_start; 1126b3a271a9SManish Rangankar } 1127b3a271a9SManish Rangankar 1128b3a271a9SManish Rangankar status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1129b3a271a9SManish Rangankar if (status == QLA_ERROR) { 11300e7e8501SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 11310e7e8501SManish Rangankar sess->targetname); 1132b3a271a9SManish Rangankar ret = -EINVAL; 1133b3a271a9SManish Rangankar goto exit_conn_start; 1134b3a271a9SManish Rangankar } 1135b3a271a9SManish Rangankar 1136b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1137b3a271a9SManish Rangankar 1138b3a271a9SManish Rangankar exit_set_param: 1139b3a271a9SManish Rangankar iscsi_conn_start(cls_conn); 1140b3a271a9SManish Rangankar ret = 0; 1141b3a271a9SManish Rangankar 1142b3a271a9SManish Rangankar exit_conn_start: 1143b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1144b3a271a9SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 1145b3a271a9SManish Rangankar return ret; 1146b3a271a9SManish Rangankar } 1147b3a271a9SManish Rangankar 1148b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 1149b3a271a9SManish Rangankar { 1150b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1151b3a271a9SManish Rangankar struct iscsi_session *sess; 1152b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1153b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1154b3a271a9SManish Rangankar int options; 1155b3a271a9SManish Rangankar 1156b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1157b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1158b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1159b3a271a9SManish Rangankar ha = ddb_entry->ha; 1160b3a271a9SManish Rangankar 1161b3a271a9SManish Rangankar options = LOGOUT_OPTION_CLOSE_SESSION; 1162b3a271a9SManish Rangankar if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 1163b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 1164b3a271a9SManish Rangankar else 1165b3a271a9SManish Rangankar qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 1166b3a271a9SManish Rangankar 1167b3a271a9SManish Rangankar /* 1168b3a271a9SManish Rangankar * Clear the DDB bit so that next login can use the bit 1169b3a271a9SManish Rangankar * if FW is not clearing the DDB entry then set DDB will fail anyways 1170b3a271a9SManish Rangankar */ 1171b3a271a9SManish Rangankar clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 1172b3a271a9SManish Rangankar } 1173b3a271a9SManish Rangankar 1174b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata) 1175b3a271a9SManish Rangankar { 1176b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1177b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1178b3a271a9SManish Rangankar struct passthru_status *sts; 1179b3a271a9SManish Rangankar struct iscsi_task *task; 1180b3a271a9SManish Rangankar struct iscsi_hdr *hdr; 1181b3a271a9SManish Rangankar uint8_t *data; 1182b3a271a9SManish Rangankar uint32_t data_len; 1183b3a271a9SManish Rangankar struct iscsi_conn *conn; 1184b3a271a9SManish Rangankar int hdr_len; 1185b3a271a9SManish Rangankar itt_t itt; 1186b3a271a9SManish Rangankar 1187b3a271a9SManish Rangankar task_data = container_of(wdata, struct ql4_task_data, task_work); 1188b3a271a9SManish Rangankar ha = task_data->ha; 1189b3a271a9SManish Rangankar task = task_data->task; 1190b3a271a9SManish Rangankar sts = &task_data->sts; 1191b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1192b3a271a9SManish Rangankar 1193b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Status returned\n")); 1194b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(sts, 64)); 1195b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Response buffer")); 1196b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 1197b3a271a9SManish Rangankar 1198b3a271a9SManish Rangankar conn = task->conn; 1199b3a271a9SManish Rangankar 1200b3a271a9SManish Rangankar switch (sts->completionStatus) { 1201b3a271a9SManish Rangankar case PASSTHRU_STATUS_COMPLETE: 1202b3a271a9SManish Rangankar hdr = (struct iscsi_hdr *)task_data->resp_buffer; 1203b3a271a9SManish Rangankar /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 1204b3a271a9SManish Rangankar itt = sts->handle; 1205b3a271a9SManish Rangankar hdr->itt = itt; 1206b3a271a9SManish Rangankar data = task_data->resp_buffer + hdr_len; 1207b3a271a9SManish Rangankar data_len = task_data->resp_len - hdr_len; 1208b3a271a9SManish Rangankar iscsi_complete_pdu(conn, hdr, data, data_len); 1209b3a271a9SManish Rangankar break; 1210b3a271a9SManish Rangankar default: 1211b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 1212b3a271a9SManish Rangankar sts->completionStatus); 1213b3a271a9SManish Rangankar break; 1214b3a271a9SManish Rangankar } 1215b3a271a9SManish Rangankar return; 1216b3a271a9SManish Rangankar } 1217b3a271a9SManish Rangankar 1218b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 1219b3a271a9SManish Rangankar { 1220b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1221b3a271a9SManish Rangankar struct iscsi_session *sess; 1222b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1223b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1224b3a271a9SManish Rangankar int hdr_len; 1225b3a271a9SManish Rangankar 1226b3a271a9SManish Rangankar sess = task->conn->session; 1227b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1228b3a271a9SManish Rangankar ha = ddb_entry->ha; 1229b3a271a9SManish Rangankar task_data = task->dd_data; 1230b3a271a9SManish Rangankar memset(task_data, 0, sizeof(struct ql4_task_data)); 1231b3a271a9SManish Rangankar 1232b3a271a9SManish Rangankar if (task->sc) { 1233b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 1234b3a271a9SManish Rangankar "%s: SCSI Commands not implemented\n", __func__); 1235b3a271a9SManish Rangankar return -EINVAL; 1236b3a271a9SManish Rangankar } 1237b3a271a9SManish Rangankar 1238b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1239b3a271a9SManish Rangankar task_data->ha = ha; 1240b3a271a9SManish Rangankar task_data->task = task; 1241b3a271a9SManish Rangankar 1242b3a271a9SManish Rangankar if (task->data_count) { 1243b3a271a9SManish Rangankar task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 1244b3a271a9SManish Rangankar task->data_count, 1245b3a271a9SManish Rangankar PCI_DMA_TODEVICE); 1246b3a271a9SManish Rangankar } 1247b3a271a9SManish Rangankar 1248b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1249b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1250b3a271a9SManish Rangankar 1251b3a271a9SManish Rangankar task_data->resp_len = task->conn->max_recv_dlength; 1252b3a271a9SManish Rangankar task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 1253b3a271a9SManish Rangankar task_data->resp_len, 1254b3a271a9SManish Rangankar &task_data->resp_dma, 1255b3a271a9SManish Rangankar GFP_ATOMIC); 1256b3a271a9SManish Rangankar if (!task_data->resp_buffer) 1257b3a271a9SManish Rangankar goto exit_alloc_pdu; 1258b3a271a9SManish Rangankar 1259b3a271a9SManish Rangankar task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 1260b3a271a9SManish Rangankar task->data_count + hdr_len, 1261b3a271a9SManish Rangankar &task_data->req_dma, 1262b3a271a9SManish Rangankar GFP_ATOMIC); 1263b3a271a9SManish Rangankar if (!task_data->req_buffer) 1264b3a271a9SManish Rangankar goto exit_alloc_pdu; 1265b3a271a9SManish Rangankar 1266b3a271a9SManish Rangankar task->hdr = task_data->req_buffer; 1267b3a271a9SManish Rangankar 1268b3a271a9SManish Rangankar INIT_WORK(&task_data->task_work, qla4xxx_task_work); 1269b3a271a9SManish Rangankar 1270b3a271a9SManish Rangankar return 0; 1271b3a271a9SManish Rangankar 1272b3a271a9SManish Rangankar exit_alloc_pdu: 1273b3a271a9SManish Rangankar if (task_data->resp_buffer) 1274b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1275b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1276b3a271a9SManish Rangankar 1277b3a271a9SManish Rangankar if (task_data->req_buffer) 1278b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task->data_count + hdr_len, 1279b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1280b3a271a9SManish Rangankar return -ENOMEM; 1281b3a271a9SManish Rangankar } 1282b3a271a9SManish Rangankar 1283b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *task) 1284b3a271a9SManish Rangankar { 1285b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1286b3a271a9SManish Rangankar struct iscsi_session *sess; 1287b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1288b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1289b3a271a9SManish Rangankar int hdr_len; 1290b3a271a9SManish Rangankar 1291b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1292b3a271a9SManish Rangankar sess = task->conn->session; 1293b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1294b3a271a9SManish Rangankar ha = ddb_entry->ha; 1295b3a271a9SManish Rangankar task_data = task->dd_data; 1296b3a271a9SManish Rangankar 1297b3a271a9SManish Rangankar if (task->data_count) { 1298b3a271a9SManish Rangankar dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 1299b3a271a9SManish Rangankar task->data_count, PCI_DMA_TODEVICE); 1300b3a271a9SManish Rangankar } 1301b3a271a9SManish Rangankar 1302b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1303b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1304b3a271a9SManish Rangankar 1305b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1306b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1307b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task->data_count + hdr_len, 1308b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1309b3a271a9SManish Rangankar return; 1310b3a271a9SManish Rangankar } 1311b3a271a9SManish Rangankar 1312b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *task) 1313b3a271a9SManish Rangankar { 1314b3a271a9SManish Rangankar struct scsi_cmnd *sc = task->sc; 1315b3a271a9SManish Rangankar struct iscsi_session *sess = task->conn->session; 1316b3a271a9SManish Rangankar struct ddb_entry *ddb_entry = sess->dd_data; 1317b3a271a9SManish Rangankar struct scsi_qla_host *ha = ddb_entry->ha; 1318b3a271a9SManish Rangankar 1319b3a271a9SManish Rangankar if (!sc) 1320b3a271a9SManish Rangankar return qla4xxx_send_passthru0(task); 1321b3a271a9SManish Rangankar 1322b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 1323b3a271a9SManish Rangankar __func__); 1324b3a271a9SManish Rangankar return -ENOSYS; 1325b3a271a9SManish Rangankar } 1326b3a271a9SManish Rangankar 1327b3a271a9SManish Rangankar void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 1328b3a271a9SManish Rangankar struct ddb_entry *ddb_entry) 1329b3a271a9SManish Rangankar { 1330b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1331b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1332b3a271a9SManish Rangankar struct iscsi_session *sess; 1333b3a271a9SManish Rangankar struct iscsi_conn *conn; 1334b3a271a9SManish Rangankar uint32_t ddb_state; 1335b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1336b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 1337b3a271a9SManish Rangankar 1338b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1339b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1340b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1341b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1342b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 1343b3a271a9SManish Rangankar return; 1344b3a271a9SManish Rangankar } 1345b3a271a9SManish Rangankar 1346b3a271a9SManish Rangankar if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 1347b3a271a9SManish Rangankar fw_ddb_entry_dma, NULL, NULL, &ddb_state, 1348b3a271a9SManish Rangankar NULL, NULL, NULL) == QLA_ERROR) { 1349b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 1350b3a271a9SManish Rangankar "get_ddb_entry for fw_ddb_index %d\n", 1351b3a271a9SManish Rangankar ha->host_no, __func__, 1352b3a271a9SManish Rangankar ddb_entry->fw_ddb_index)); 1353b3a271a9SManish Rangankar return; 1354b3a271a9SManish Rangankar } 1355b3a271a9SManish Rangankar 1356b3a271a9SManish Rangankar cls_sess = ddb_entry->sess; 1357b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1358b3a271a9SManish Rangankar 1359b3a271a9SManish Rangankar cls_conn = ddb_entry->conn; 1360b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1361b3a271a9SManish Rangankar 1362b3a271a9SManish Rangankar /* Update params */ 1363b3a271a9SManish Rangankar conn->max_recv_dlength = BYTE_UNITS * 1364b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 1365b3a271a9SManish Rangankar 1366b3a271a9SManish Rangankar conn->max_xmit_dlength = BYTE_UNITS * 1367b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 1368b3a271a9SManish Rangankar 1369b3a271a9SManish Rangankar sess->initial_r2t_en = 1370b3a271a9SManish Rangankar (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1371b3a271a9SManish Rangankar 1372b3a271a9SManish Rangankar sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 1373b3a271a9SManish Rangankar 1374b3a271a9SManish Rangankar sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1375b3a271a9SManish Rangankar 1376b3a271a9SManish Rangankar sess->first_burst = BYTE_UNITS * 1377b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 1378b3a271a9SManish Rangankar 1379b3a271a9SManish Rangankar sess->max_burst = BYTE_UNITS * 1380b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 1381b3a271a9SManish Rangankar 1382b3a271a9SManish Rangankar sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 1383b3a271a9SManish Rangankar 1384b3a271a9SManish Rangankar sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 1385b3a271a9SManish Rangankar 1386b3a271a9SManish Rangankar sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 1387b3a271a9SManish Rangankar 1388b3a271a9SManish Rangankar memcpy(sess->initiatorname, ha->name_string, 1389b3a271a9SManish Rangankar min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 1390b3a271a9SManish Rangankar } 1391b3a271a9SManish Rangankar 1392afaf5a2dSDavid Somayajulu /* 1393afaf5a2dSDavid Somayajulu * Timer routines 1394afaf5a2dSDavid Somayajulu */ 1395afaf5a2dSDavid Somayajulu 1396afaf5a2dSDavid Somayajulu static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 1397afaf5a2dSDavid Somayajulu unsigned long interval) 1398afaf5a2dSDavid Somayajulu { 1399afaf5a2dSDavid Somayajulu DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 1400afaf5a2dSDavid Somayajulu __func__, ha->host->host_no)); 1401afaf5a2dSDavid Somayajulu init_timer(&ha->timer); 1402afaf5a2dSDavid Somayajulu ha->timer.expires = jiffies + interval * HZ; 1403afaf5a2dSDavid Somayajulu ha->timer.data = (unsigned long)ha; 1404afaf5a2dSDavid Somayajulu ha->timer.function = (void (*)(unsigned long))func; 1405afaf5a2dSDavid Somayajulu add_timer(&ha->timer); 1406afaf5a2dSDavid Somayajulu ha->timer_active = 1; 1407afaf5a2dSDavid Somayajulu } 1408afaf5a2dSDavid Somayajulu 1409afaf5a2dSDavid Somayajulu static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 1410afaf5a2dSDavid Somayajulu { 1411afaf5a2dSDavid Somayajulu del_timer_sync(&ha->timer); 1412afaf5a2dSDavid Somayajulu ha->timer_active = 0; 1413afaf5a2dSDavid Somayajulu } 1414afaf5a2dSDavid Somayajulu 1415afaf5a2dSDavid Somayajulu /*** 1416b3a271a9SManish Rangankar * qla4xxx_mark_device_missing - blocks the session 1417b3a271a9SManish Rangankar * @cls_session: Pointer to the session to be blocked 1418afaf5a2dSDavid Somayajulu * @ddb_entry: Pointer to device database entry 1419afaf5a2dSDavid Somayajulu * 1420f4f5df23SVikas Chaudhary * This routine marks a device missing and close connection. 1421afaf5a2dSDavid Somayajulu **/ 1422b3a271a9SManish Rangankar void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 1423afaf5a2dSDavid Somayajulu { 1424b3a271a9SManish Rangankar iscsi_block_session(cls_session); 1425afaf5a2dSDavid Somayajulu } 1426afaf5a2dSDavid Somayajulu 1427f4f5df23SVikas Chaudhary /** 1428f4f5df23SVikas Chaudhary * qla4xxx_mark_all_devices_missing - mark all devices as missing. 1429f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1430f4f5df23SVikas Chaudhary * 1431f4f5df23SVikas Chaudhary * This routine marks a device missing and resets the relogin retry count. 1432f4f5df23SVikas Chaudhary **/ 1433f4f5df23SVikas Chaudhary void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 1434f4f5df23SVikas Chaudhary { 1435b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 1436f4f5df23SVikas Chaudhary } 1437f4f5df23SVikas Chaudhary 1438afaf5a2dSDavid Somayajulu static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 1439afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, 14408f0722caSVikas Chaudhary struct scsi_cmnd *cmd) 1441afaf5a2dSDavid Somayajulu { 1442afaf5a2dSDavid Somayajulu struct srb *srb; 1443afaf5a2dSDavid Somayajulu 1444afaf5a2dSDavid Somayajulu srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 1445afaf5a2dSDavid Somayajulu if (!srb) 1446afaf5a2dSDavid Somayajulu return srb; 1447afaf5a2dSDavid Somayajulu 144809a0f719SVikas Chaudhary kref_init(&srb->srb_ref); 1449afaf5a2dSDavid Somayajulu srb->ha = ha; 1450afaf5a2dSDavid Somayajulu srb->ddb = ddb_entry; 1451afaf5a2dSDavid Somayajulu srb->cmd = cmd; 1452afaf5a2dSDavid Somayajulu srb->flags = 0; 14535369887aSVikas Chaudhary CMD_SP(cmd) = (void *)srb; 1454afaf5a2dSDavid Somayajulu 1455afaf5a2dSDavid Somayajulu return srb; 1456afaf5a2dSDavid Somayajulu } 1457afaf5a2dSDavid Somayajulu 1458afaf5a2dSDavid Somayajulu static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 1459afaf5a2dSDavid Somayajulu { 1460afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 1461afaf5a2dSDavid Somayajulu 1462afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 14635f7186c8SFUJITA Tomonori scsi_dma_unmap(cmd); 1464afaf5a2dSDavid Somayajulu srb->flags &= ~SRB_DMA_VALID; 1465afaf5a2dSDavid Somayajulu } 14665369887aSVikas Chaudhary CMD_SP(cmd) = NULL; 1467afaf5a2dSDavid Somayajulu } 1468afaf5a2dSDavid Somayajulu 146909a0f719SVikas Chaudhary void qla4xxx_srb_compl(struct kref *ref) 1470afaf5a2dSDavid Somayajulu { 147109a0f719SVikas Chaudhary struct srb *srb = container_of(ref, struct srb, srb_ref); 1472afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 147309a0f719SVikas Chaudhary struct scsi_qla_host *ha = srb->ha; 1474afaf5a2dSDavid Somayajulu 1475afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1476afaf5a2dSDavid Somayajulu 1477afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1478afaf5a2dSDavid Somayajulu 1479afaf5a2dSDavid Somayajulu cmd->scsi_done(cmd); 1480afaf5a2dSDavid Somayajulu } 1481afaf5a2dSDavid Somayajulu 1482afaf5a2dSDavid Somayajulu /** 1483afaf5a2dSDavid Somayajulu * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 14848f0722caSVikas Chaudhary * @host: scsi host 1485afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 1486afaf5a2dSDavid Somayajulu * 1487afaf5a2dSDavid Somayajulu * Remarks: 1488afaf5a2dSDavid Somayajulu * This routine is invoked by Linux to send a SCSI command to the driver. 1489afaf5a2dSDavid Somayajulu * The mid-level driver tries to ensure that queuecommand never gets 1490afaf5a2dSDavid Somayajulu * invoked concurrently with itself or the interrupt handler (although 1491afaf5a2dSDavid Somayajulu * the interrupt handler may call this routine as part of request- 1492afaf5a2dSDavid Somayajulu * completion handling). Unfortunely, it sometimes calls the scheduler 1493afaf5a2dSDavid Somayajulu * in interrupt context which is a big NO! NO!. 1494afaf5a2dSDavid Somayajulu **/ 14958f0722caSVikas Chaudhary static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 1496afaf5a2dSDavid Somayajulu { 14978f0722caSVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(host); 1498afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 14997fb1921bSMike Christie struct iscsi_cls_session *sess = ddb_entry->sess; 1500afaf5a2dSDavid Somayajulu struct srb *srb; 1501afaf5a2dSDavid Somayajulu int rval; 1502afaf5a2dSDavid Somayajulu 15032232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 15042232be0dSLalit Chandivade if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 15052232be0dSLalit Chandivade cmd->result = DID_NO_CONNECT << 16; 15062232be0dSLalit Chandivade else 15072232be0dSLalit Chandivade cmd->result = DID_REQUEUE << 16; 15082232be0dSLalit Chandivade goto qc_fail_command; 15092232be0dSLalit Chandivade } 15102232be0dSLalit Chandivade 15117fb1921bSMike Christie if (!sess) { 15127fb1921bSMike Christie cmd->result = DID_IMM_RETRY << 16; 15137fb1921bSMike Christie goto qc_fail_command; 15147fb1921bSMike Christie } 15157fb1921bSMike Christie 15167fb1921bSMike Christie rval = iscsi_session_chkready(sess); 15177fb1921bSMike Christie if (rval) { 15187fb1921bSMike Christie cmd->result = rval; 15197fb1921bSMike Christie goto qc_fail_command; 15207fb1921bSMike Christie } 15217fb1921bSMike Christie 1522f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1523f4f5df23SVikas Chaudhary test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1524f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1525f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1526f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 1527f4f5df23SVikas Chaudhary !test_bit(AF_ONLINE, &ha->flags) || 1528b3a271a9SManish Rangankar !test_bit(AF_LINK_UP, &ha->flags) || 1529f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 1530477ffb9dSDavid C Somayajulu goto qc_host_busy; 1531477ffb9dSDavid C Somayajulu 15328f0722caSVikas Chaudhary srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 1533afaf5a2dSDavid Somayajulu if (!srb) 15348f0722caSVikas Chaudhary goto qc_host_busy; 1535afaf5a2dSDavid Somayajulu 1536afaf5a2dSDavid Somayajulu rval = qla4xxx_send_command_to_isp(ha, srb); 1537afaf5a2dSDavid Somayajulu if (rval != QLA_SUCCESS) 1538afaf5a2dSDavid Somayajulu goto qc_host_busy_free_sp; 1539afaf5a2dSDavid Somayajulu 1540afaf5a2dSDavid Somayajulu return 0; 1541afaf5a2dSDavid Somayajulu 1542afaf5a2dSDavid Somayajulu qc_host_busy_free_sp: 1543afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1544afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1545afaf5a2dSDavid Somayajulu 1546afaf5a2dSDavid Somayajulu qc_host_busy: 1547afaf5a2dSDavid Somayajulu return SCSI_MLQUEUE_HOST_BUSY; 1548afaf5a2dSDavid Somayajulu 1549afaf5a2dSDavid Somayajulu qc_fail_command: 15508f0722caSVikas Chaudhary cmd->scsi_done(cmd); 1551afaf5a2dSDavid Somayajulu 1552afaf5a2dSDavid Somayajulu return 0; 1553afaf5a2dSDavid Somayajulu } 1554afaf5a2dSDavid Somayajulu 1555afaf5a2dSDavid Somayajulu /** 1556afaf5a2dSDavid Somayajulu * qla4xxx_mem_free - frees memory allocated to adapter 1557afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1558afaf5a2dSDavid Somayajulu * 1559afaf5a2dSDavid Somayajulu * Frees memory previously allocated by qla4xxx_mem_alloc 1560afaf5a2dSDavid Somayajulu **/ 1561afaf5a2dSDavid Somayajulu static void qla4xxx_mem_free(struct scsi_qla_host *ha) 1562afaf5a2dSDavid Somayajulu { 1563afaf5a2dSDavid Somayajulu if (ha->queues) 1564afaf5a2dSDavid Somayajulu dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 1565afaf5a2dSDavid Somayajulu ha->queues_dma); 1566afaf5a2dSDavid Somayajulu 1567afaf5a2dSDavid Somayajulu ha->queues_len = 0; 1568afaf5a2dSDavid Somayajulu ha->queues = NULL; 1569afaf5a2dSDavid Somayajulu ha->queues_dma = 0; 1570afaf5a2dSDavid Somayajulu ha->request_ring = NULL; 1571afaf5a2dSDavid Somayajulu ha->request_dma = 0; 1572afaf5a2dSDavid Somayajulu ha->response_ring = NULL; 1573afaf5a2dSDavid Somayajulu ha->response_dma = 0; 1574afaf5a2dSDavid Somayajulu ha->shadow_regs = NULL; 1575afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = 0; 1576afaf5a2dSDavid Somayajulu 1577afaf5a2dSDavid Somayajulu /* Free srb pool. */ 1578afaf5a2dSDavid Somayajulu if (ha->srb_mempool) 1579afaf5a2dSDavid Somayajulu mempool_destroy(ha->srb_mempool); 1580afaf5a2dSDavid Somayajulu 1581afaf5a2dSDavid Somayajulu ha->srb_mempool = NULL; 1582afaf5a2dSDavid Somayajulu 1583b3a271a9SManish Rangankar if (ha->chap_dma_pool) 1584b3a271a9SManish Rangankar dma_pool_destroy(ha->chap_dma_pool); 1585b3a271a9SManish Rangankar 1586afaf5a2dSDavid Somayajulu /* release io space registers */ 1587f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1588f4f5df23SVikas Chaudhary if (ha->nx_pcibase) 1589f4f5df23SVikas Chaudhary iounmap( 1590f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)ha->nx_pcibase); 1591f4f5df23SVikas Chaudhary } else if (ha->reg) 1592afaf5a2dSDavid Somayajulu iounmap(ha->reg); 1593afaf5a2dSDavid Somayajulu pci_release_regions(ha->pdev); 1594afaf5a2dSDavid Somayajulu } 1595afaf5a2dSDavid Somayajulu 1596afaf5a2dSDavid Somayajulu /** 1597afaf5a2dSDavid Somayajulu * qla4xxx_mem_alloc - allocates memory for use by adapter. 1598afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 1599afaf5a2dSDavid Somayajulu * 1600afaf5a2dSDavid Somayajulu * Allocates DMA memory for request and response queues. Also allocates memory 1601afaf5a2dSDavid Somayajulu * for srbs. 1602afaf5a2dSDavid Somayajulu **/ 1603afaf5a2dSDavid Somayajulu static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 1604afaf5a2dSDavid Somayajulu { 1605afaf5a2dSDavid Somayajulu unsigned long align; 1606afaf5a2dSDavid Somayajulu 1607afaf5a2dSDavid Somayajulu /* Allocate contiguous block of DMA memory for queues. */ 1608afaf5a2dSDavid Somayajulu ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1609afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 1610afaf5a2dSDavid Somayajulu sizeof(struct shadow_regs) + 1611afaf5a2dSDavid Somayajulu MEM_ALIGN_VALUE + 1612afaf5a2dSDavid Somayajulu (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 1613afaf5a2dSDavid Somayajulu ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 1614afaf5a2dSDavid Somayajulu &ha->queues_dma, GFP_KERNEL); 1615afaf5a2dSDavid Somayajulu if (ha->queues == NULL) { 1616c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1617afaf5a2dSDavid Somayajulu "Memory Allocation failed - queues.\n"); 1618afaf5a2dSDavid Somayajulu 1619afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1620afaf5a2dSDavid Somayajulu } 1621afaf5a2dSDavid Somayajulu memset(ha->queues, 0, ha->queues_len); 1622afaf5a2dSDavid Somayajulu 1623afaf5a2dSDavid Somayajulu /* 1624afaf5a2dSDavid Somayajulu * As per RISC alignment requirements -- the bus-address must be a 1625afaf5a2dSDavid Somayajulu * multiple of the request-ring size (in bytes). 1626afaf5a2dSDavid Somayajulu */ 1627afaf5a2dSDavid Somayajulu align = 0; 1628afaf5a2dSDavid Somayajulu if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 1629afaf5a2dSDavid Somayajulu align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 1630afaf5a2dSDavid Somayajulu (MEM_ALIGN_VALUE - 1)); 1631afaf5a2dSDavid Somayajulu 1632afaf5a2dSDavid Somayajulu /* Update request and response queue pointers. */ 1633afaf5a2dSDavid Somayajulu ha->request_dma = ha->queues_dma + align; 1634afaf5a2dSDavid Somayajulu ha->request_ring = (struct queue_entry *) (ha->queues + align); 1635afaf5a2dSDavid Somayajulu ha->response_dma = ha->queues_dma + align + 1636afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 1637afaf5a2dSDavid Somayajulu ha->response_ring = (struct queue_entry *) (ha->queues + align + 1638afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1639afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1640afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = ha->queues_dma + align + 1641afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1642afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 1643afaf5a2dSDavid Somayajulu ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 1644afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1645afaf5a2dSDavid Somayajulu QUEUE_SIZE) + 1646afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * 1647afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1648afaf5a2dSDavid Somayajulu 1649afaf5a2dSDavid Somayajulu /* Allocate memory for srb pool. */ 1650afaf5a2dSDavid Somayajulu ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 1651afaf5a2dSDavid Somayajulu mempool_free_slab, srb_cachep); 1652afaf5a2dSDavid Somayajulu if (ha->srb_mempool == NULL) { 1653c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1654afaf5a2dSDavid Somayajulu "Memory Allocation failed - SRB Pool.\n"); 1655afaf5a2dSDavid Somayajulu 1656afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1657afaf5a2dSDavid Somayajulu } 1658afaf5a2dSDavid Somayajulu 1659b3a271a9SManish Rangankar ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 1660b3a271a9SManish Rangankar CHAP_DMA_BLOCK_SIZE, 8, 0); 1661b3a271a9SManish Rangankar 1662b3a271a9SManish Rangankar if (ha->chap_dma_pool == NULL) { 1663b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 1664b3a271a9SManish Rangankar "%s: chap_dma_pool allocation failed..\n", __func__); 1665b3a271a9SManish Rangankar goto mem_alloc_error_exit; 1666b3a271a9SManish Rangankar } 1667b3a271a9SManish Rangankar 1668afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 1669afaf5a2dSDavid Somayajulu 1670afaf5a2dSDavid Somayajulu mem_alloc_error_exit: 1671afaf5a2dSDavid Somayajulu qla4xxx_mem_free(ha); 1672afaf5a2dSDavid Somayajulu return QLA_ERROR; 1673afaf5a2dSDavid Somayajulu } 1674afaf5a2dSDavid Somayajulu 1675afaf5a2dSDavid Somayajulu /** 1676f4f5df23SVikas Chaudhary * qla4_8xxx_check_fw_alive - Check firmware health 1677f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1678f4f5df23SVikas Chaudhary * 1679f4f5df23SVikas Chaudhary * Context: Interrupt 1680f4f5df23SVikas Chaudhary **/ 1681f4f5df23SVikas Chaudhary static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 1682f4f5df23SVikas Chaudhary { 1683f4f5df23SVikas Chaudhary uint32_t fw_heartbeat_counter, halt_status; 1684f4f5df23SVikas Chaudhary 1685f4f5df23SVikas Chaudhary fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 16862232be0dSLalit Chandivade /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 16872232be0dSLalit Chandivade if (fw_heartbeat_counter == 0xffffffff) { 16882232be0dSLalit Chandivade DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 16892232be0dSLalit Chandivade "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 16902232be0dSLalit Chandivade ha->host_no, __func__)); 16912232be0dSLalit Chandivade return; 16922232be0dSLalit Chandivade } 1693f4f5df23SVikas Chaudhary 1694f4f5df23SVikas Chaudhary if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 1695f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat++; 1696f4f5df23SVikas Chaudhary /* FW not alive after 2 seconds */ 1697f4f5df23SVikas Chaudhary if (ha->seconds_since_last_heartbeat == 2) { 1698f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat = 0; 1699f4f5df23SVikas Chaudhary halt_status = qla4_8xxx_rd_32(ha, 1700f4f5df23SVikas Chaudhary QLA82XX_PEG_HALT_STATUS1); 170168d92ebfSVikas Chaudhary 170268d92ebfSVikas Chaudhary ql4_printk(KERN_INFO, ha, 170368d92ebfSVikas Chaudhary "scsi(%ld): %s, Dumping hw/fw registers:\n " 170468d92ebfSVikas Chaudhary " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:" 170568d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:" 170668d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:" 170768d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_4_PC: 0x%x\n", 170868d92ebfSVikas Chaudhary ha->host_no, __func__, halt_status, 170968d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, 171068d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 171168d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 171268d92ebfSVikas Chaudhary 0x3c), 171368d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 171468d92ebfSVikas Chaudhary 0x3c), 171568d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 171668d92ebfSVikas Chaudhary 0x3c), 171768d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 171868d92ebfSVikas Chaudhary 0x3c), 171968d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 172068d92ebfSVikas Chaudhary 0x3c)); 172121033639SNilesh Javali 1722f4f5df23SVikas Chaudhary /* Since we cannot change dev_state in interrupt 1723f4f5df23SVikas Chaudhary * context, set appropriate DPC flag then wakeup 1724f4f5df23SVikas Chaudhary * DPC */ 1725f4f5df23SVikas Chaudhary if (halt_status & HALT_STATUS_UNRECOVERABLE) 1726f4f5df23SVikas Chaudhary set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 1727f4f5df23SVikas Chaudhary else { 1728f4f5df23SVikas Chaudhary printk("scsi%ld: %s: detect abort needed!\n", 1729f4f5df23SVikas Chaudhary ha->host_no, __func__); 1730f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1731f4f5df23SVikas Chaudhary } 1732f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 173321033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 1734f4f5df23SVikas Chaudhary } 173599457d75SLalit Chandivade } else 173699457d75SLalit Chandivade ha->seconds_since_last_heartbeat = 0; 173799457d75SLalit Chandivade 1738f4f5df23SVikas Chaudhary ha->fw_heartbeat_counter = fw_heartbeat_counter; 1739f4f5df23SVikas Chaudhary } 1740f4f5df23SVikas Chaudhary 1741f4f5df23SVikas Chaudhary /** 1742f4f5df23SVikas Chaudhary * qla4_8xxx_watchdog - Poll dev state 1743f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1744f4f5df23SVikas Chaudhary * 1745f4f5df23SVikas Chaudhary * Context: Interrupt 1746f4f5df23SVikas Chaudhary **/ 1747f4f5df23SVikas Chaudhary void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 1748f4f5df23SVikas Chaudhary { 1749f4f5df23SVikas Chaudhary uint32_t dev_state; 1750f4f5df23SVikas Chaudhary 1751f4f5df23SVikas Chaudhary dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 1752f4f5df23SVikas Chaudhary 1753f4f5df23SVikas Chaudhary /* don't poll if reset is going on */ 1754d56a1f7bSLalit Chandivade if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1755d56a1f7bSLalit Chandivade test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1756977f46a4SVikas Chaudhary test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 1757f4f5df23SVikas Chaudhary if (dev_state == QLA82XX_DEV_NEED_RESET && 1758f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 17593930b8c1SVikas Chaudhary if (!ql4xdontresethba) { 17603930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: " 17613930b8c1SVikas Chaudhary "NEED RESET!\n", __func__); 1762f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1763f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 176421033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 17653930b8c1SVikas Chaudhary } 1766f4f5df23SVikas Chaudhary } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT && 1767f4f5df23SVikas Chaudhary !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 17683930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 17693930b8c1SVikas Chaudhary __func__); 1770f4f5df23SVikas Chaudhary set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 1771f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1772f4f5df23SVikas Chaudhary } else { 1773f4f5df23SVikas Chaudhary /* Check firmware health */ 1774f4f5df23SVikas Chaudhary qla4_8xxx_check_fw_alive(ha); 1775f4f5df23SVikas Chaudhary } 1776f4f5df23SVikas Chaudhary } 1777f4f5df23SVikas Chaudhary } 1778f4f5df23SVikas Chaudhary 1779f4f5df23SVikas Chaudhary /** 1780afaf5a2dSDavid Somayajulu * qla4xxx_timer - checks every second for work to do. 1781afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1782afaf5a2dSDavid Somayajulu **/ 1783afaf5a2dSDavid Somayajulu static void qla4xxx_timer(struct scsi_qla_host *ha) 1784afaf5a2dSDavid Somayajulu { 1785afaf5a2dSDavid Somayajulu int start_dpc = 0; 17862232be0dSLalit Chandivade uint16_t w; 17872232be0dSLalit Chandivade 17882232be0dSLalit Chandivade /* If we are in the middle of AER/EEH processing 17892232be0dSLalit Chandivade * skip any processing and reschedule the timer 17902232be0dSLalit Chandivade */ 17912232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 17922232be0dSLalit Chandivade mod_timer(&ha->timer, jiffies + HZ); 17932232be0dSLalit Chandivade return; 17942232be0dSLalit Chandivade } 17952232be0dSLalit Chandivade 17962232be0dSLalit Chandivade /* Hardware read to trigger an EEH error during mailbox waits. */ 17972232be0dSLalit Chandivade if (!pci_channel_offline(ha->pdev)) 17982232be0dSLalit Chandivade pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 1799afaf5a2dSDavid Somayajulu 1800f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1801f4f5df23SVikas Chaudhary qla4_8xxx_watchdog(ha); 1802f4f5df23SVikas Chaudhary } 1803f4f5df23SVikas Chaudhary 1804f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 1805afaf5a2dSDavid Somayajulu /* Check for heartbeat interval. */ 1806afaf5a2dSDavid Somayajulu if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 1807afaf5a2dSDavid Somayajulu ha->heartbeat_interval != 0) { 1808afaf5a2dSDavid Somayajulu ha->seconds_since_last_heartbeat++; 1809afaf5a2dSDavid Somayajulu if (ha->seconds_since_last_heartbeat > 1810afaf5a2dSDavid Somayajulu ha->heartbeat_interval + 2) 1811afaf5a2dSDavid Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 1812afaf5a2dSDavid Somayajulu } 1813f4f5df23SVikas Chaudhary } 1814afaf5a2dSDavid Somayajulu 1815afaf5a2dSDavid Somayajulu /* Wakeup the dpc routine for this adapter, if needed. */ 18161b46807eSLalit Chandivade if (start_dpc || 1817afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1818afaf5a2dSDavid Somayajulu test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 1819afaf5a2dSDavid Somayajulu test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 1820f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 1821afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1822afaf5a2dSDavid Somayajulu test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 1823065aa1b4SVikas Chaudhary test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 1824f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1825f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 18261b46807eSLalit Chandivade test_bit(DPC_AEN, &ha->dpc_flags)) { 1827afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 1828afaf5a2dSDavid Somayajulu " - dpc flags = 0x%lx\n", 1829afaf5a2dSDavid Somayajulu ha->host_no, __func__, ha->dpc_flags)); 1830f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1831afaf5a2dSDavid Somayajulu } 1832afaf5a2dSDavid Somayajulu 1833afaf5a2dSDavid Somayajulu /* Reschedule timer thread to call us back in one second */ 1834afaf5a2dSDavid Somayajulu mod_timer(&ha->timer, jiffies + HZ); 1835afaf5a2dSDavid Somayajulu 1836afaf5a2dSDavid Somayajulu DEBUG2(ha->seconds_since_last_intr++); 1837afaf5a2dSDavid Somayajulu } 1838afaf5a2dSDavid Somayajulu 1839afaf5a2dSDavid Somayajulu /** 1840afaf5a2dSDavid Somayajulu * qla4xxx_cmd_wait - waits for all outstanding commands to complete 1841afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1842afaf5a2dSDavid Somayajulu * 1843afaf5a2dSDavid Somayajulu * This routine stalls the driver until all outstanding commands are returned. 1844afaf5a2dSDavid Somayajulu * Caller must release the Hardware Lock prior to calling this routine. 1845afaf5a2dSDavid Somayajulu **/ 1846afaf5a2dSDavid Somayajulu static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 1847afaf5a2dSDavid Somayajulu { 1848afaf5a2dSDavid Somayajulu uint32_t index = 0; 1849afaf5a2dSDavid Somayajulu unsigned long flags; 1850afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 1851afaf5a2dSDavid Somayajulu 1852f4f5df23SVikas Chaudhary unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 1853f4f5df23SVikas Chaudhary 1854f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 1855f4f5df23SVikas Chaudhary "complete\n", WAIT_CMD_TOV)); 1856f4f5df23SVikas Chaudhary 1857f4f5df23SVikas Chaudhary while (!time_after_eq(jiffies, wtime)) { 1858afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1859afaf5a2dSDavid Somayajulu /* Find a command that hasn't completed. */ 1860afaf5a2dSDavid Somayajulu for (index = 0; index < ha->host->can_queue; index++) { 1861afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, index); 1862a1e0063dSMike Christie /* 1863a1e0063dSMike Christie * We cannot just check if the index is valid, 1864a1e0063dSMike Christie * becase if we are run from the scsi eh, then 1865a1e0063dSMike Christie * the scsi/block layer is going to prevent 1866a1e0063dSMike Christie * the tag from being released. 1867a1e0063dSMike Christie */ 1868a1e0063dSMike Christie if (cmd != NULL && CMD_SP(cmd)) 1869afaf5a2dSDavid Somayajulu break; 1870afaf5a2dSDavid Somayajulu } 1871afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1872afaf5a2dSDavid Somayajulu 1873afaf5a2dSDavid Somayajulu /* If No Commands are pending, wait is complete */ 1874f4f5df23SVikas Chaudhary if (index == ha->host->can_queue) 1875f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1876afaf5a2dSDavid Somayajulu 1877afaf5a2dSDavid Somayajulu msleep(1000); 1878afaf5a2dSDavid Somayajulu } 1879f4f5df23SVikas Chaudhary /* If we timed out on waiting for commands to come back 1880f4f5df23SVikas Chaudhary * return ERROR. */ 1881f4f5df23SVikas Chaudhary return QLA_ERROR; 1882afaf5a2dSDavid Somayajulu } 1883afaf5a2dSDavid Somayajulu 1884f4f5df23SVikas Chaudhary int qla4xxx_hw_reset(struct scsi_qla_host *ha) 1885afaf5a2dSDavid Somayajulu { 1886afaf5a2dSDavid Somayajulu uint32_t ctrl_status; 1887477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1888477ffb9dSDavid C Somayajulu 1889477ffb9dSDavid C Somayajulu DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 1890afaf5a2dSDavid Somayajulu 1891f4f5df23SVikas Chaudhary if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 1892f4f5df23SVikas Chaudhary return QLA_ERROR; 1893f4f5df23SVikas Chaudhary 1894afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1895afaf5a2dSDavid Somayajulu 1896afaf5a2dSDavid Somayajulu /* 1897afaf5a2dSDavid Somayajulu * If the SCSI Reset Interrupt bit is set, clear it. 1898afaf5a2dSDavid Somayajulu * Otherwise, the Soft Reset won't work. 1899afaf5a2dSDavid Somayajulu */ 1900afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1901afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 1902afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1903afaf5a2dSDavid Somayajulu 1904afaf5a2dSDavid Somayajulu /* Issue Soft Reset */ 1905afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 1906afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1907afaf5a2dSDavid Somayajulu 1908afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1909f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1910477ffb9dSDavid C Somayajulu } 1911477ffb9dSDavid C Somayajulu 1912477ffb9dSDavid C Somayajulu /** 1913477ffb9dSDavid C Somayajulu * qla4xxx_soft_reset - performs soft reset. 1914477ffb9dSDavid C Somayajulu * @ha: Pointer to host adapter structure. 1915477ffb9dSDavid C Somayajulu **/ 1916477ffb9dSDavid C Somayajulu int qla4xxx_soft_reset(struct scsi_qla_host *ha) 1917477ffb9dSDavid C Somayajulu { 1918477ffb9dSDavid C Somayajulu uint32_t max_wait_time; 1919477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1920f931c534SVikas Chaudhary int status; 1921477ffb9dSDavid C Somayajulu uint32_t ctrl_status; 1922477ffb9dSDavid C Somayajulu 1923f931c534SVikas Chaudhary status = qla4xxx_hw_reset(ha); 1924f931c534SVikas Chaudhary if (status != QLA_SUCCESS) 1925f931c534SVikas Chaudhary return status; 1926afaf5a2dSDavid Somayajulu 1927f931c534SVikas Chaudhary status = QLA_ERROR; 1928afaf5a2dSDavid Somayajulu /* Wait until the Network Reset Intr bit is cleared */ 1929afaf5a2dSDavid Somayajulu max_wait_time = RESET_INTR_TOV; 1930afaf5a2dSDavid Somayajulu do { 1931afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1932afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1933afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1934afaf5a2dSDavid Somayajulu 1935afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 1936afaf5a2dSDavid Somayajulu break; 1937afaf5a2dSDavid Somayajulu 1938afaf5a2dSDavid Somayajulu msleep(1000); 1939afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1940afaf5a2dSDavid Somayajulu 1941afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 1942afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_WARNING 1943afaf5a2dSDavid Somayajulu "scsi%ld: Network Reset Intr not cleared by " 1944afaf5a2dSDavid Somayajulu "Network function, clearing it now!\n", 1945afaf5a2dSDavid Somayajulu ha->host_no)); 1946afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1947afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 1948afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1949afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1950afaf5a2dSDavid Somayajulu } 1951afaf5a2dSDavid Somayajulu 1952afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 1953afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 1954afaf5a2dSDavid Somayajulu do { 1955afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1956afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1957afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1958afaf5a2dSDavid Somayajulu 1959afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SOFT_RESET) == 0) { 1960afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 1961afaf5a2dSDavid Somayajulu break; 1962afaf5a2dSDavid Somayajulu } 1963afaf5a2dSDavid Somayajulu 1964afaf5a2dSDavid Somayajulu msleep(1000); 1965afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1966afaf5a2dSDavid Somayajulu 1967afaf5a2dSDavid Somayajulu /* 1968afaf5a2dSDavid Somayajulu * Also, make sure that the SCSI Reset Interrupt bit has been cleared 1969afaf5a2dSDavid Somayajulu * after the soft reset has taken place. 1970afaf5a2dSDavid Somayajulu */ 1971afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1972afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1973afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 1974afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1975afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1976afaf5a2dSDavid Somayajulu } 1977afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1978afaf5a2dSDavid Somayajulu 1979afaf5a2dSDavid Somayajulu /* If soft reset fails then most probably the bios on other 1980afaf5a2dSDavid Somayajulu * function is also enabled. 1981afaf5a2dSDavid Somayajulu * Since the initialization is sequential the other fn 1982afaf5a2dSDavid Somayajulu * wont be able to acknowledge the soft reset. 1983afaf5a2dSDavid Somayajulu * Issue a force soft reset to workaround this scenario. 1984afaf5a2dSDavid Somayajulu */ 1985afaf5a2dSDavid Somayajulu if (max_wait_time == 0) { 1986afaf5a2dSDavid Somayajulu /* Issue Force Soft Reset */ 1987afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1988afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 1989afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1990afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1991afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 1992afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 1993afaf5a2dSDavid Somayajulu do { 1994afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1995afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1996afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1997afaf5a2dSDavid Somayajulu 1998afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 1999afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2000afaf5a2dSDavid Somayajulu break; 2001afaf5a2dSDavid Somayajulu } 2002afaf5a2dSDavid Somayajulu 2003afaf5a2dSDavid Somayajulu msleep(1000); 2004afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2005afaf5a2dSDavid Somayajulu } 2006afaf5a2dSDavid Somayajulu 2007afaf5a2dSDavid Somayajulu return status; 2008afaf5a2dSDavid Somayajulu } 2009afaf5a2dSDavid Somayajulu 2010afaf5a2dSDavid Somayajulu /** 2011f4f5df23SVikas Chaudhary * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 2012afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2013f4f5df23SVikas Chaudhary * @res: returned scsi status 2014afaf5a2dSDavid Somayajulu * 2015afaf5a2dSDavid Somayajulu * This routine is called just prior to a HARD RESET to return all 2016afaf5a2dSDavid Somayajulu * outstanding commands back to the Operating System. 2017afaf5a2dSDavid Somayajulu * Caller should make sure that the following locks are released 2018afaf5a2dSDavid Somayajulu * before this calling routine: Hardware lock, and io_request_lock. 2019afaf5a2dSDavid Somayajulu **/ 2020f4f5df23SVikas Chaudhary static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 2021afaf5a2dSDavid Somayajulu { 2022afaf5a2dSDavid Somayajulu struct srb *srb; 2023afaf5a2dSDavid Somayajulu int i; 2024afaf5a2dSDavid Somayajulu unsigned long flags; 2025afaf5a2dSDavid Somayajulu 2026afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2027afaf5a2dSDavid Somayajulu for (i = 0; i < ha->host->can_queue; i++) { 2028afaf5a2dSDavid Somayajulu srb = qla4xxx_del_from_active_array(ha, i); 2029afaf5a2dSDavid Somayajulu if (srb != NULL) { 2030f4f5df23SVikas Chaudhary srb->cmd->result = res; 203109a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 2032afaf5a2dSDavid Somayajulu } 2033afaf5a2dSDavid Somayajulu } 2034afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2035afaf5a2dSDavid Somayajulu } 2036afaf5a2dSDavid Somayajulu 2037f4f5df23SVikas Chaudhary void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 2038f4f5df23SVikas Chaudhary { 2039f4f5df23SVikas Chaudhary clear_bit(AF_ONLINE, &ha->flags); 2040f4f5df23SVikas Chaudhary 2041f4f5df23SVikas Chaudhary /* Disable the board */ 2042f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 2043f4f5df23SVikas Chaudhary 2044f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2045f4f5df23SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2046f4f5df23SVikas Chaudhary clear_bit(AF_INIT_DONE, &ha->flags); 2047f4f5df23SVikas Chaudhary } 2048f4f5df23SVikas Chaudhary 2049b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 2050b3a271a9SManish Rangankar { 2051b3a271a9SManish Rangankar struct iscsi_session *sess; 2052b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2053b3a271a9SManish Rangankar 2054b3a271a9SManish Rangankar sess = cls_session->dd_data; 2055b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2056b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 2057b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED); 2058b3a271a9SManish Rangankar } 2059b3a271a9SManish Rangankar 2060afaf5a2dSDavid Somayajulu /** 2061afaf5a2dSDavid Somayajulu * qla4xxx_recover_adapter - recovers adapter after a fatal error 2062afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2063afaf5a2dSDavid Somayajulu **/ 2064f4f5df23SVikas Chaudhary static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 2065afaf5a2dSDavid Somayajulu { 2066f4f5df23SVikas Chaudhary int status = QLA_ERROR; 2067f4f5df23SVikas Chaudhary uint8_t reset_chip = 0; 2068afaf5a2dSDavid Somayajulu 2069afaf5a2dSDavid Somayajulu /* Stall incoming I/O until we are done */ 2070f4f5df23SVikas Chaudhary scsi_block_requests(ha->host); 2071afaf5a2dSDavid Somayajulu clear_bit(AF_ONLINE, &ha->flags); 2072b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 207350a29aecSMike Christie 2074f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 2075afaf5a2dSDavid Somayajulu 2076f4f5df23SVikas Chaudhary set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2077afaf5a2dSDavid Somayajulu 2078b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 2079b3a271a9SManish Rangankar 2080f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2081f4f5df23SVikas Chaudhary reset_chip = 1; 2082afaf5a2dSDavid Somayajulu 2083f4f5df23SVikas Chaudhary /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 2084f4f5df23SVikas Chaudhary * do not reset adapter, jump to initialize_adapter */ 2085f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2086f4f5df23SVikas Chaudhary status = QLA_SUCCESS; 2087f4f5df23SVikas Chaudhary goto recover_ha_init_adapter; 2088afaf5a2dSDavid Somayajulu } 2089afaf5a2dSDavid Somayajulu 2090f4f5df23SVikas Chaudhary /* For the ISP-82xx adapter, issue a stop_firmware if invoked 2091f4f5df23SVikas Chaudhary * from eh_host_reset or ioctl module */ 2092f4f5df23SVikas Chaudhary if (is_qla8022(ha) && !reset_chip && 2093f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2094f4f5df23SVikas Chaudhary 2095f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2096f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing stop_firmware...\n", 2097f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2098f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_firmware(ha); 2099f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 21002bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2101f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2102f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2103f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2104f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2105f4f5df23SVikas Chaudhary } else { 2106f4f5df23SVikas Chaudhary /* If the stop_firmware fails then 2107f4f5df23SVikas Chaudhary * reset the entire chip */ 2108f4f5df23SVikas Chaudhary reset_chip = 1; 2109f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2110f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2111f4f5df23SVikas Chaudhary } 2112f4f5df23SVikas Chaudhary } 2113f4f5df23SVikas Chaudhary 2114f4f5df23SVikas Chaudhary /* Issue full chip reset if recovering from a catastrophic error, 2115f4f5df23SVikas Chaudhary * or if stop_firmware fails for ISP-82xx. 2116f4f5df23SVikas Chaudhary * This is the default case for ISP-4xxx */ 2117f4f5df23SVikas Chaudhary if (!is_qla8022(ha) || reset_chip) { 21182bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2119f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2120f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2121f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2122f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2123f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing chip reset..\n", 2124f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2125f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_chip(ha); 2126f4f5df23SVikas Chaudhary } 2127f4f5df23SVikas Chaudhary 2128f4f5df23SVikas Chaudhary /* Flush any pending ddb changed AENs */ 2129f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2130f4f5df23SVikas Chaudhary 2131f4f5df23SVikas Chaudhary recover_ha_init_adapter: 2132f4f5df23SVikas Chaudhary /* Upon successful firmware/chip reset, re-initialize the adapter */ 2133f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 2134f4f5df23SVikas Chaudhary /* For ISP-4xxx, force function 1 to always initialize 2135f4f5df23SVikas Chaudhary * before function 3 to prevent both funcions from 2136f4f5df23SVikas Chaudhary * stepping on top of the other */ 2137f4f5df23SVikas Chaudhary if (!is_qla8022(ha) && (ha->mac_index == 3)) 2138f4f5df23SVikas Chaudhary ssleep(6); 2139f4f5df23SVikas Chaudhary 2140f4f5df23SVikas Chaudhary /* NOTE: AF_ONLINE flag set upon successful completion of 2141f4f5df23SVikas Chaudhary * qla4xxx_initialize_adapter */ 21420e7e8501SManish Rangankar status = qla4xxx_initialize_adapter(ha); 2143f4f5df23SVikas Chaudhary } 2144f4f5df23SVikas Chaudhary 2145f4f5df23SVikas Chaudhary /* Retry failed adapter initialization, if necessary 2146f4f5df23SVikas Chaudhary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 2147f4f5df23SVikas Chaudhary * case to prevent ping-pong resets between functions */ 2148f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags) && 2149f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2150afaf5a2dSDavid Somayajulu /* Adapter initialization failed, see if we can retry 2151f4f5df23SVikas Chaudhary * resetting the ha. 2152f4f5df23SVikas Chaudhary * Since we don't want to block the DPC for too long 2153f4f5df23SVikas Chaudhary * with multiple resets in the same thread, 2154f4f5df23SVikas Chaudhary * utilize DPC to retry */ 2155afaf5a2dSDavid Somayajulu if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 2156afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 2157afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - retrying " 2158afaf5a2dSDavid Somayajulu "(%d) more times\n", ha->host_no, 2159afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2160afaf5a2dSDavid Somayajulu set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2161afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2162afaf5a2dSDavid Somayajulu } else { 2163afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt > 0) { 2164afaf5a2dSDavid Somayajulu /* Schedule another Reset HA--DPC will retry */ 2165afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt--; 2166afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - " 2167afaf5a2dSDavid Somayajulu "retry remaining %d\n", 2168afaf5a2dSDavid Somayajulu ha->host_no, 2169afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2170afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2171afaf5a2dSDavid Somayajulu } 2172afaf5a2dSDavid Somayajulu 2173afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt == 0) { 2174afaf5a2dSDavid Somayajulu /* Recover adapter retries have been exhausted. 2175afaf5a2dSDavid Somayajulu * Adapter DEAD */ 2176afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter " 2177afaf5a2dSDavid Somayajulu "failed - board disabled\n", 2178afaf5a2dSDavid Somayajulu ha->host_no)); 2179f4f5df23SVikas Chaudhary qla4xxx_dead_adapter_cleanup(ha); 2180afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2181afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2182f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, 2183afaf5a2dSDavid Somayajulu &ha->dpc_flags); 2184afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2185afaf5a2dSDavid Somayajulu } 2186afaf5a2dSDavid Somayajulu } 2187afaf5a2dSDavid Somayajulu } else { 2188afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2189f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2190afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2191afaf5a2dSDavid Somayajulu } 2192afaf5a2dSDavid Somayajulu 2193afaf5a2dSDavid Somayajulu ha->adapter_error_count++; 2194afaf5a2dSDavid Somayajulu 2195f4f5df23SVikas Chaudhary if (test_bit(AF_ONLINE, &ha->flags)) 2196f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2197afaf5a2dSDavid Somayajulu 2198f4f5df23SVikas Chaudhary scsi_unblock_requests(ha->host); 2199f4f5df23SVikas Chaudhary 2200f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2201f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 220225985edcSLucas De Marchi status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 2203f4f5df23SVikas Chaudhary 2204afaf5a2dSDavid Somayajulu return status; 2205afaf5a2dSDavid Somayajulu } 2206afaf5a2dSDavid Somayajulu 2207b3a271a9SManish Rangankar static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 2208b3a271a9SManish Rangankar { 2209b3a271a9SManish Rangankar struct iscsi_session *sess; 2210b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2211b3a271a9SManish Rangankar struct scsi_qla_host *ha; 2212b3a271a9SManish Rangankar 2213b3a271a9SManish Rangankar sess = cls_session->dd_data; 2214b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2215b3a271a9SManish Rangankar ha = ddb_entry->ha; 2216b3a271a9SManish Rangankar if (!iscsi_is_session_online(cls_session)) { 2217b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 2218b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 2219b3a271a9SManish Rangankar " unblock session\n", ha->host_no, __func__, 2220b3a271a9SManish Rangankar ddb_entry->fw_ddb_index); 2221b3a271a9SManish Rangankar iscsi_unblock_session(ddb_entry->sess); 2222b3a271a9SManish Rangankar } else { 2223b3a271a9SManish Rangankar /* Trigger relogin */ 2224b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, 2225b3a271a9SManish Rangankar ISCSI_ERR_CONN_FAILED); 2226b3a271a9SManish Rangankar } 2227b3a271a9SManish Rangankar } 2228b3a271a9SManish Rangankar } 2229b3a271a9SManish Rangankar 22302d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 22312d7924e6SVikas Chaudhary { 2232b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 22332d7924e6SVikas Chaudhary } 22342d7924e6SVikas Chaudhary 2235f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 2236f4f5df23SVikas Chaudhary { 22371b46807eSLalit Chandivade if (ha->dpc_thread) 2238f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 2239f4f5df23SVikas Chaudhary } 2240f4f5df23SVikas Chaudhary 2241afaf5a2dSDavid Somayajulu /** 2242afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 2243afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 2244afaf5a2dSDavid Somayajulu * 2245afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 2246afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 2247afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 2248afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 2249afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 2250afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 2251afaf5a2dSDavid Somayajulu **/ 2252c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 2253afaf5a2dSDavid Somayajulu { 2254c4028958SDavid Howells struct scsi_qla_host *ha = 2255c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 2256477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 2257afaf5a2dSDavid Somayajulu 2258f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 2259f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 2260f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 2261afaf5a2dSDavid Somayajulu 2262afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 2263afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 22641b46807eSLalit Chandivade return; 2265afaf5a2dSDavid Somayajulu 22662232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 22672232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 22682232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 22691b46807eSLalit Chandivade return; 22702232be0dSLalit Chandivade } 22712232be0dSLalit Chandivade 2272f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2273f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 2274f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 2275f4f5df23SVikas Chaudhary qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 2276f4f5df23SVikas Chaudhary QLA82XX_DEV_FAILED); 2277f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 2278f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 2279f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 2280f4f5df23SVikas Chaudhary } 2281f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 2282f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 2283f4f5df23SVikas Chaudhary } 2284f4f5df23SVikas Chaudhary } 2285f4f5df23SVikas Chaudhary 2286f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 2287f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2288afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2289f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 2290f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 2291f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 2292f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2293f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2294f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2295f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2296f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 2297f4f5df23SVikas Chaudhary } 2298f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2299f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2300f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 2301afaf5a2dSDavid Somayajulu 2302477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2303afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 2304afaf5a2dSDavid Somayajulu 2305afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 2306afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 2307afaf5a2dSDavid Somayajulu if (--wait_time == 0) 2308afaf5a2dSDavid Somayajulu break; 2309afaf5a2dSDavid Somayajulu msleep(1000); 2310afaf5a2dSDavid Somayajulu } 2311afaf5a2dSDavid Somayajulu if (wait_time == 0) 2312afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 2313afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 2314afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 2315f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2316477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 2317477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2318f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 2319477ffb9dSDavid C Somayajulu } 2320477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2321477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 2322f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2323afaf5a2dSDavid Somayajulu } 2324afaf5a2dSDavid Somayajulu } 2325afaf5a2dSDavid Somayajulu 2326f4f5df23SVikas Chaudhary dpc_post_reset_ha: 2327afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 2328afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 2329afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 2330afaf5a2dSDavid Somayajulu 2331afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 2332afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 2333afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 2334afaf5a2dSDavid Somayajulu 2335065aa1b4SVikas Chaudhary /* ---- link change? --- */ 2336065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 2337065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 2338065aa1b4SVikas Chaudhary /* ---- link down? --- */ 23392d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2340065aa1b4SVikas Chaudhary } else { 2341065aa1b4SVikas Chaudhary /* ---- link up? --- * 2342065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 2343065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 2344065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 2345065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 2346065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 2347065aa1b4SVikas Chaudhary 23482d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 2349065aa1b4SVikas Chaudhary } 2350065aa1b4SVikas Chaudhary } 2351afaf5a2dSDavid Somayajulu } 2352afaf5a2dSDavid Somayajulu 2353afaf5a2dSDavid Somayajulu /** 2354afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 2355afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 2356afaf5a2dSDavid Somayajulu **/ 2357afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 2358afaf5a2dSDavid Somayajulu { 2359afaf5a2dSDavid Somayajulu 2360afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 2361afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 2362f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2363afaf5a2dSDavid Somayajulu } 2364afaf5a2dSDavid Somayajulu 2365afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 2366afaf5a2dSDavid Somayajulu if (ha->timer_active) 2367afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 2368afaf5a2dSDavid Somayajulu 2369f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 2370f4f5df23SVikas Chaudhary if (ha->dpc_thread) 2371f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 2372f4f5df23SVikas Chaudhary 2373b3a271a9SManish Rangankar /* Kill the kernel thread for this host */ 2374b3a271a9SManish Rangankar if (ha->task_wq) 2375b3a271a9SManish Rangankar destroy_workqueue(ha->task_wq); 2376b3a271a9SManish Rangankar 2377f4f5df23SVikas Chaudhary /* Put firmware in known state */ 2378f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 2379f4f5df23SVikas Chaudhary 2380f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2381f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 2382f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 2383f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 2384f4f5df23SVikas Chaudhary } 2385f4f5df23SVikas Chaudhary 2386afaf5a2dSDavid Somayajulu /* Detach interrupts */ 2387afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 2388f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 2389afaf5a2dSDavid Somayajulu 2390bee4fe8eSDavid C Somayajulu /* free extra memory */ 2391bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 2392f4f5df23SVikas Chaudhary } 2393bee4fe8eSDavid C Somayajulu 2394f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 2395f4f5df23SVikas Chaudhary { 2396f4f5df23SVikas Chaudhary int status = 0; 2397f4f5df23SVikas Chaudhary uint8_t revision_id; 2398f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 2399f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 2400afaf5a2dSDavid Somayajulu 2401f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 2402f4f5df23SVikas Chaudhary if (status) { 2403f4f5df23SVikas Chaudhary printk(KERN_WARNING 2404f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 2405f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 2406f4f5df23SVikas Chaudhary goto iospace_error_exit; 2407f4f5df23SVikas Chaudhary } 2408f4f5df23SVikas Chaudhary 2409f4f5df23SVikas Chaudhary pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id); 2410f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 2411f4f5df23SVikas Chaudhary __func__, revision_id)); 2412f4f5df23SVikas Chaudhary ha->revision_id = revision_id; 2413f4f5df23SVikas Chaudhary 2414f4f5df23SVikas Chaudhary /* remap phys address */ 2415f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 2416f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 2417f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 2418f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 2419f4f5df23SVikas Chaudhary 2420f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 2421f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 2422f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 2423f4f5df23SVikas Chaudhary printk(KERN_ERR 2424f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 2425f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 2426f4f5df23SVikas Chaudhary goto iospace_error_exit; 2427f4f5df23SVikas Chaudhary } 2428f4f5df23SVikas Chaudhary 2429f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 2430f4f5df23SVikas Chaudhary 2431f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 2432f4f5df23SVikas Chaudhary ha->qla4_8xxx_reg = 2433f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 2434f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 2435f4f5df23SVikas Chaudhary 2436f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 2437f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 2438f4f5df23SVikas Chaudhary 24392657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 24402657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 2441f4f5df23SVikas Chaudhary 24422657c800SShyam Sundar return 0; 2443f4f5df23SVikas Chaudhary iospace_error_exit: 2444f4f5df23SVikas Chaudhary return -ENOMEM; 2445afaf5a2dSDavid Somayajulu } 2446afaf5a2dSDavid Somayajulu 2447afaf5a2dSDavid Somayajulu /*** 2448afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 2449afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 2450afaf5a2dSDavid Somayajulu * 2451afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 2452afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 2453afaf5a2dSDavid Somayajulu **/ 2454f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 2455afaf5a2dSDavid Somayajulu { 2456afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 2457afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 2458afaf5a2dSDavid Somayajulu 2459afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 2460afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 2461afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 2462afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 2463afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 2464c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2465afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 2466afaf5a2dSDavid Somayajulu pio = 0; 2467afaf5a2dSDavid Somayajulu } 2468afaf5a2dSDavid Somayajulu } else { 2469c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 2470afaf5a2dSDavid Somayajulu pio = 0; 2471afaf5a2dSDavid Somayajulu } 2472afaf5a2dSDavid Somayajulu 2473afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 2474afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 2475afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 2476afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 2477afaf5a2dSDavid Somayajulu 2478afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 2479c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2480afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 2481afaf5a2dSDavid Somayajulu 2482afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2483afaf5a2dSDavid Somayajulu } 2484c2660df3SVikas Chaudhary 2485afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 2486c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2487afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 2488afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2489afaf5a2dSDavid Somayajulu } 2490afaf5a2dSDavid Somayajulu 2491afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 2492c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2493afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 2494afaf5a2dSDavid Somayajulu 2495afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2496afaf5a2dSDavid Somayajulu } 2497afaf5a2dSDavid Somayajulu 2498afaf5a2dSDavid Somayajulu ha->pio_address = pio; 2499afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 2500afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 2501afaf5a2dSDavid Somayajulu if (!ha->reg) { 2502c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2503afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 2504afaf5a2dSDavid Somayajulu 2505afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2506afaf5a2dSDavid Somayajulu } 2507afaf5a2dSDavid Somayajulu 2508afaf5a2dSDavid Somayajulu return 0; 2509afaf5a2dSDavid Somayajulu 2510afaf5a2dSDavid Somayajulu iospace_error_exit: 2511afaf5a2dSDavid Somayajulu return -ENOMEM; 2512afaf5a2dSDavid Somayajulu } 2513afaf5a2dSDavid Somayajulu 2514f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 2515f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 2516f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 2517f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 2518f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 2519f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 2520f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 2521f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 2522f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 2523f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 2524f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 2525f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 2526f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 2527f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 2528f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 2529f4f5df23SVikas Chaudhary }; 2530f4f5df23SVikas Chaudhary 2531f4f5df23SVikas Chaudhary static struct isp_operations qla4_8xxx_isp_ops = { 2532f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 2533f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 2534f4f5df23SVikas Chaudhary .disable_intrs = qla4_8xxx_disable_intrs, 2535f4f5df23SVikas Chaudhary .enable_intrs = qla4_8xxx_enable_intrs, 2536f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 2537f4f5df23SVikas Chaudhary .intr_handler = qla4_8xxx_intr_handler, 2538f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4_8xxx_interrupt_service_routine, 2539f4f5df23SVikas Chaudhary .reset_chip = qla4_8xxx_isp_reset, 2540f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 2541f4f5df23SVikas Chaudhary .queue_iocb = qla4_8xxx_queue_iocb, 2542f4f5df23SVikas Chaudhary .complete_iocb = qla4_8xxx_complete_iocb, 2543f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out, 2544f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in, 2545f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 2546f4f5df23SVikas Chaudhary }; 2547f4f5df23SVikas Chaudhary 2548f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2549f4f5df23SVikas Chaudhary { 2550f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 2551f4f5df23SVikas Chaudhary } 2552f4f5df23SVikas Chaudhary 2553f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2554f4f5df23SVikas Chaudhary { 2555f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out)); 2556f4f5df23SVikas Chaudhary } 2557f4f5df23SVikas Chaudhary 2558f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2559f4f5df23SVikas Chaudhary { 2560f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 2561f4f5df23SVikas Chaudhary } 2562f4f5df23SVikas Chaudhary 2563f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2564f4f5df23SVikas Chaudhary { 2565f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in)); 2566f4f5df23SVikas Chaudhary } 2567f4f5df23SVikas Chaudhary 25682a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 25692a991c21SManish Rangankar { 25702a991c21SManish Rangankar struct scsi_qla_host *ha = data; 25712a991c21SManish Rangankar char *str = buf; 25722a991c21SManish Rangankar int rc; 25732a991c21SManish Rangankar 25742a991c21SManish Rangankar switch (type) { 25752a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 25762a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 25772a991c21SManish Rangankar break; 25782a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 25792a991c21SManish Rangankar rc = sprintf(str, "0\n"); 25802a991c21SManish Rangankar break; 25812a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 25822a991c21SManish Rangankar rc = sysfs_format_mac(str, ha->my_mac, 25832a991c21SManish Rangankar MAC_ADDR_LEN); 25842a991c21SManish Rangankar break; 25852a991c21SManish Rangankar default: 25862a991c21SManish Rangankar rc = -ENOSYS; 25872a991c21SManish Rangankar break; 25882a991c21SManish Rangankar } 25892a991c21SManish Rangankar return rc; 25902a991c21SManish Rangankar } 25912a991c21SManish Rangankar 25922a991c21SManish Rangankar static mode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 25932a991c21SManish Rangankar { 25942a991c21SManish Rangankar int rc; 25952a991c21SManish Rangankar 25962a991c21SManish Rangankar switch (type) { 25972a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 25982a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 25992a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 26002a991c21SManish Rangankar rc = S_IRUGO; 26012a991c21SManish Rangankar break; 26022a991c21SManish Rangankar default: 26032a991c21SManish Rangankar rc = 0; 26042a991c21SManish Rangankar break; 26052a991c21SManish Rangankar } 26062a991c21SManish Rangankar return rc; 26072a991c21SManish Rangankar } 26082a991c21SManish Rangankar 26092a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 26102a991c21SManish Rangankar { 26112a991c21SManish Rangankar struct scsi_qla_host *ha = data; 26122a991c21SManish Rangankar char *str = buf; 26132a991c21SManish Rangankar int rc; 26142a991c21SManish Rangankar 26152a991c21SManish Rangankar switch (type) { 26162a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 26172a991c21SManish Rangankar rc = sprintf(str, "%s\n", ha->name_string); 26182a991c21SManish Rangankar break; 26192a991c21SManish Rangankar default: 26202a991c21SManish Rangankar rc = -ENOSYS; 26212a991c21SManish Rangankar break; 26222a991c21SManish Rangankar } 26232a991c21SManish Rangankar return rc; 26242a991c21SManish Rangankar } 26252a991c21SManish Rangankar 26262a991c21SManish Rangankar static mode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 26272a991c21SManish Rangankar { 26282a991c21SManish Rangankar int rc; 26292a991c21SManish Rangankar 26302a991c21SManish Rangankar switch (type) { 26312a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 26322a991c21SManish Rangankar rc = S_IRUGO; 26332a991c21SManish Rangankar break; 26342a991c21SManish Rangankar default: 26352a991c21SManish Rangankar rc = 0; 26362a991c21SManish Rangankar break; 26372a991c21SManish Rangankar } 26382a991c21SManish Rangankar return rc; 26392a991c21SManish Rangankar } 26402a991c21SManish Rangankar 26412a991c21SManish Rangankar static ssize_t 26422a991c21SManish Rangankar qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 26432a991c21SManish Rangankar char *buf) 26442a991c21SManish Rangankar { 26452a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 26462a991c21SManish Rangankar char *str = buf; 26472a991c21SManish Rangankar int rc; 26482a991c21SManish Rangankar 26492a991c21SManish Rangankar switch (type) { 26502a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 26512a991c21SManish Rangankar rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 26522a991c21SManish Rangankar break; 26532a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 26542a991c21SManish Rangankar if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 26552a991c21SManish Rangankar rc = sprintf(buf, "%pI4\n", 26562a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 26572a991c21SManish Rangankar else 26582a991c21SManish Rangankar rc = sprintf(str, "%pI6\n", 26592a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 26602a991c21SManish Rangankar break; 26612a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 26622a991c21SManish Rangankar rc = sprintf(str, "%d\n", boot_conn->dest_port); 26632a991c21SManish Rangankar break; 26642a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 26652a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26662a991c21SManish Rangankar boot_conn->chap.target_chap_name_length, 26672a991c21SManish Rangankar (char *)&boot_conn->chap.target_chap_name); 26682a991c21SManish Rangankar break; 26692a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 26702a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26712a991c21SManish Rangankar boot_conn->chap.target_secret_length, 26722a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret); 26732a991c21SManish Rangankar break; 26742a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 26752a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26762a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length, 26772a991c21SManish Rangankar (char *)&boot_conn->chap.intr_chap_name); 26782a991c21SManish Rangankar break; 26792a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 26802a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26812a991c21SManish Rangankar boot_conn->chap.intr_secret_length, 26822a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret); 26832a991c21SManish Rangankar break; 26842a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 26852a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 26862a991c21SManish Rangankar break; 26872a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 26882a991c21SManish Rangankar rc = sprintf(str, "0\n"); 26892a991c21SManish Rangankar break; 26902a991c21SManish Rangankar default: 26912a991c21SManish Rangankar rc = -ENOSYS; 26922a991c21SManish Rangankar break; 26932a991c21SManish Rangankar } 26942a991c21SManish Rangankar return rc; 26952a991c21SManish Rangankar } 26962a991c21SManish Rangankar 26972a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 26982a991c21SManish Rangankar { 26992a991c21SManish Rangankar struct scsi_qla_host *ha = data; 27002a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 27012a991c21SManish Rangankar 27022a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 27032a991c21SManish Rangankar } 27042a991c21SManish Rangankar 27052a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 27062a991c21SManish Rangankar { 27072a991c21SManish Rangankar struct scsi_qla_host *ha = data; 27082a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 27092a991c21SManish Rangankar 27102a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 27112a991c21SManish Rangankar } 27122a991c21SManish Rangankar 27132a991c21SManish Rangankar static mode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 27142a991c21SManish Rangankar { 27152a991c21SManish Rangankar int rc; 27162a991c21SManish Rangankar 27172a991c21SManish Rangankar switch (type) { 27182a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 27192a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 27202a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 27212a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 27222a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 27232a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 27242a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 27252a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 27262a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 27272a991c21SManish Rangankar rc = S_IRUGO; 27282a991c21SManish Rangankar break; 27292a991c21SManish Rangankar default: 27302a991c21SManish Rangankar rc = 0; 27312a991c21SManish Rangankar break; 27322a991c21SManish Rangankar } 27332a991c21SManish Rangankar return rc; 27342a991c21SManish Rangankar } 27352a991c21SManish Rangankar 27362a991c21SManish Rangankar static void qla4xxx_boot_release(void *data) 27372a991c21SManish Rangankar { 27382a991c21SManish Rangankar struct scsi_qla_host *ha = data; 27392a991c21SManish Rangankar 27402a991c21SManish Rangankar scsi_host_put(ha->host); 27412a991c21SManish Rangankar } 27422a991c21SManish Rangankar 27432a991c21SManish Rangankar static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 27442a991c21SManish Rangankar { 27452a991c21SManish Rangankar dma_addr_t buf_dma; 27462a991c21SManish Rangankar uint32_t addr, pri_addr, sec_addr; 27472a991c21SManish Rangankar uint32_t offset; 27482a991c21SManish Rangankar uint16_t func_num; 27492a991c21SManish Rangankar uint8_t val; 27502a991c21SManish Rangankar uint8_t *buf = NULL; 27512a991c21SManish Rangankar size_t size = 13 * sizeof(uint8_t); 27522a991c21SManish Rangankar int ret = QLA_SUCCESS; 27532a991c21SManish Rangankar 27542a991c21SManish Rangankar func_num = PCI_FUNC(ha->pdev->devfn); 27552a991c21SManish Rangankar 27562a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 27572a991c21SManish Rangankar "%s: Get FW boot info for 0x%x func %d\n", __func__, 27582a991c21SManish Rangankar (is_qla4032(ha) ? PCI_DEVICE_ID_QLOGIC_ISP4032 : 27592a991c21SManish Rangankar PCI_DEVICE_ID_QLOGIC_ISP8022), func_num)); 27602a991c21SManish Rangankar 27612a991c21SManish Rangankar if (is_qla4032(ha)) { 27622a991c21SManish Rangankar if (func_num == 1) { 27632a991c21SManish Rangankar addr = NVRAM_PORT0_BOOT_MODE; 27642a991c21SManish Rangankar pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 27652a991c21SManish Rangankar sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 27662a991c21SManish Rangankar } else if (func_num == 3) { 27672a991c21SManish Rangankar addr = NVRAM_PORT1_BOOT_MODE; 27682a991c21SManish Rangankar pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 27692a991c21SManish Rangankar sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 27702a991c21SManish Rangankar } else { 27712a991c21SManish Rangankar ret = QLA_ERROR; 27722a991c21SManish Rangankar goto exit_boot_info; 27732a991c21SManish Rangankar } 27742a991c21SManish Rangankar 27752a991c21SManish Rangankar /* Check Boot Mode */ 27762a991c21SManish Rangankar val = rd_nvram_byte(ha, addr); 27772a991c21SManish Rangankar if (!(val & 0x07)) { 27782a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 27792a991c21SManish Rangankar "%s: Failed Boot options : 0x%x\n", 27802a991c21SManish Rangankar __func__, val)); 27812a991c21SManish Rangankar ret = QLA_ERROR; 27822a991c21SManish Rangankar goto exit_boot_info; 27832a991c21SManish Rangankar } 27842a991c21SManish Rangankar 27852a991c21SManish Rangankar /* get primary valid target index */ 27862a991c21SManish Rangankar val = rd_nvram_byte(ha, pri_addr); 27872a991c21SManish Rangankar if (val & BIT_7) 27882a991c21SManish Rangankar ddb_index[0] = (val & 0x7f); 27892a991c21SManish Rangankar else 27902a991c21SManish Rangankar ddb_index[0] = 0; 27912a991c21SManish Rangankar 27922a991c21SManish Rangankar /* get secondary valid target index */ 27932a991c21SManish Rangankar val = rd_nvram_byte(ha, sec_addr); 27942a991c21SManish Rangankar if (val & BIT_7) 27952a991c21SManish Rangankar ddb_index[1] = (val & 0x7f); 27962a991c21SManish Rangankar else 27972a991c21SManish Rangankar ddb_index[1] = 1; 27982a991c21SManish Rangankar 27992a991c21SManish Rangankar } else if (is_qla8022(ha)) { 28002a991c21SManish Rangankar buf = dma_alloc_coherent(&ha->pdev->dev, size, 28012a991c21SManish Rangankar &buf_dma, GFP_KERNEL); 28022a991c21SManish Rangankar if (!buf) { 28032a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 28042a991c21SManish Rangankar "%s: Unable to allocate dma buffer\n", 28052a991c21SManish Rangankar __func__)); 28062a991c21SManish Rangankar ret = QLA_ERROR; 28072a991c21SManish Rangankar goto exit_boot_info; 28082a991c21SManish Rangankar } 28092a991c21SManish Rangankar 28102a991c21SManish Rangankar if (ha->port_num == 0) 28112a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT0; 28122a991c21SManish Rangankar else if (ha->port_num == 1) 28132a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT1; 28142a991c21SManish Rangankar else { 28152a991c21SManish Rangankar ret = QLA_ERROR; 28162a991c21SManish Rangankar goto exit_boot_info_free; 28172a991c21SManish Rangankar } 28182a991c21SManish Rangankar addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 28192a991c21SManish Rangankar offset; 28202a991c21SManish Rangankar if (qla4xxx_get_flash(ha, buf_dma, addr, 28212a991c21SManish Rangankar 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 28222a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 28232a991c21SManish Rangankar "failed\n", ha->host_no, __func__)); 28242a991c21SManish Rangankar ret = QLA_ERROR; 28252a991c21SManish Rangankar goto exit_boot_info_free; 28262a991c21SManish Rangankar } 28272a991c21SManish Rangankar /* Check Boot Mode */ 28282a991c21SManish Rangankar if (!(buf[1] & 0x07)) { 28292a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 28302a991c21SManish Rangankar "Failed: Boot options : 0x%x\n", 28312a991c21SManish Rangankar buf[1])); 28322a991c21SManish Rangankar ret = QLA_ERROR; 28332a991c21SManish Rangankar goto exit_boot_info_free; 28342a991c21SManish Rangankar } 28352a991c21SManish Rangankar 28362a991c21SManish Rangankar /* get primary valid target index */ 28372a991c21SManish Rangankar if (buf[2] & BIT_7) 28382a991c21SManish Rangankar ddb_index[0] = buf[2] & 0x7f; 28392a991c21SManish Rangankar else 28402a991c21SManish Rangankar ddb_index[0] = 0; 28412a991c21SManish Rangankar 28422a991c21SManish Rangankar /* get secondary valid target index */ 28432a991c21SManish Rangankar if (buf[11] & BIT_7) 28442a991c21SManish Rangankar ddb_index[1] = buf[11] & 0x7f; 28452a991c21SManish Rangankar else 28462a991c21SManish Rangankar ddb_index[1] = 1; 28472a991c21SManish Rangankar 28482a991c21SManish Rangankar } else { 28492a991c21SManish Rangankar ret = QLA_ERROR; 28502a991c21SManish Rangankar goto exit_boot_info; 28512a991c21SManish Rangankar } 28522a991c21SManish Rangankar 28532a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 28542a991c21SManish Rangankar " target ID %d\n", __func__, ddb_index[0], 28552a991c21SManish Rangankar ddb_index[1])); 28562a991c21SManish Rangankar 28572a991c21SManish Rangankar exit_boot_info_free: 28582a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 28592a991c21SManish Rangankar exit_boot_info: 28602a991c21SManish Rangankar return ret; 28612a991c21SManish Rangankar } 28622a991c21SManish Rangankar 28632a991c21SManish Rangankar static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 28642a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess, 28652a991c21SManish Rangankar uint16_t ddb_index) 28662a991c21SManish Rangankar { 28672a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 28682a991c21SManish Rangankar struct dev_db_entry *fw_ddb_entry; 28692a991c21SManish Rangankar dma_addr_t fw_ddb_entry_dma; 28702a991c21SManish Rangankar uint16_t idx; 28712a991c21SManish Rangankar uint16_t options; 28722a991c21SManish Rangankar int ret = QLA_SUCCESS; 28732a991c21SManish Rangankar 28742a991c21SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 28752a991c21SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 28762a991c21SManish Rangankar if (!fw_ddb_entry) { 28772a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 28782a991c21SManish Rangankar "%s: Unable to allocate dma buffer.\n", 28792a991c21SManish Rangankar __func__)); 28802a991c21SManish Rangankar ret = QLA_ERROR; 28812a991c21SManish Rangankar return ret; 28822a991c21SManish Rangankar } 28832a991c21SManish Rangankar 28842a991c21SManish Rangankar if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 28852a991c21SManish Rangankar fw_ddb_entry_dma, ddb_index)) { 28862a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 28872a991c21SManish Rangankar "%s: Flash DDB read Failed\n", __func__)); 28882a991c21SManish Rangankar ret = QLA_ERROR; 28892a991c21SManish Rangankar goto exit_boot_target; 28902a991c21SManish Rangankar } 28912a991c21SManish Rangankar 28922a991c21SManish Rangankar /* Update target name and IP from DDB */ 28932a991c21SManish Rangankar memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 28942a991c21SManish Rangankar min(sizeof(boot_sess->target_name), 28952a991c21SManish Rangankar sizeof(fw_ddb_entry->iscsi_name))); 28962a991c21SManish Rangankar 28972a991c21SManish Rangankar options = le16_to_cpu(fw_ddb_entry->options); 28982a991c21SManish Rangankar if (options & DDB_OPT_IPV6_DEVICE) { 28992a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 29002a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 29012a991c21SManish Rangankar } else { 29022a991c21SManish Rangankar boot_conn->dest_ipaddr.ip_type = 0x1; 29032a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 29042a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 29052a991c21SManish Rangankar } 29062a991c21SManish Rangankar 29072a991c21SManish Rangankar boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 29082a991c21SManish Rangankar 29092a991c21SManish Rangankar /* update chap information */ 29102a991c21SManish Rangankar idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 29112a991c21SManish Rangankar 29122a991c21SManish Rangankar if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 29132a991c21SManish Rangankar 29142a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 29152a991c21SManish Rangankar 29162a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 29172a991c21SManish Rangankar target_chap_name, 29182a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret, 29192a991c21SManish Rangankar idx); 29202a991c21SManish Rangankar if (ret) { 29212a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 29222a991c21SManish Rangankar ret = QLA_ERROR; 29232a991c21SManish Rangankar goto exit_boot_target; 29242a991c21SManish Rangankar } 29252a991c21SManish Rangankar 29262a991c21SManish Rangankar boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 29272a991c21SManish Rangankar boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 29282a991c21SManish Rangankar } 29292a991c21SManish Rangankar 29302a991c21SManish Rangankar if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 29312a991c21SManish Rangankar 29322a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 29332a991c21SManish Rangankar 29342a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 29352a991c21SManish Rangankar intr_chap_name, 29362a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret, 29372a991c21SManish Rangankar (idx + 1)); 29382a991c21SManish Rangankar if (ret) { 29392a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 29402a991c21SManish Rangankar ret = QLA_ERROR; 29412a991c21SManish Rangankar goto exit_boot_target; 29422a991c21SManish Rangankar } 29432a991c21SManish Rangankar 29442a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 29452a991c21SManish Rangankar boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 29462a991c21SManish Rangankar } 29472a991c21SManish Rangankar 29482a991c21SManish Rangankar exit_boot_target: 29492a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 29502a991c21SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 29512a991c21SManish Rangankar return ret; 29522a991c21SManish Rangankar } 29532a991c21SManish Rangankar 29542a991c21SManish Rangankar static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 29552a991c21SManish Rangankar { 29562a991c21SManish Rangankar uint16_t ddb_index[2]; 29572a991c21SManish Rangankar int ret = QLA_SUCCESS; 29582a991c21SManish Rangankar 29592a991c21SManish Rangankar memset(ddb_index, 0, sizeof(ddb_index)); 29602a991c21SManish Rangankar ret = get_fw_boot_info(ha, ddb_index); 29612a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 29622a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 29632a991c21SManish Rangankar "%s: Failed to set boot info.\n", __func__)); 29642a991c21SManish Rangankar return ret; 29652a991c21SManish Rangankar } 29662a991c21SManish Rangankar 29672a991c21SManish Rangankar ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 29682a991c21SManish Rangankar ddb_index[0]); 29692a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 29702a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 29712a991c21SManish Rangankar "primary target\n", __func__)); 29722a991c21SManish Rangankar } 29732a991c21SManish Rangankar 29742a991c21SManish Rangankar ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 29752a991c21SManish Rangankar ddb_index[1]); 29762a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 29772a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 29782a991c21SManish Rangankar "secondary target\n", __func__)); 29792a991c21SManish Rangankar } 29802a991c21SManish Rangankar return ret; 29812a991c21SManish Rangankar } 29822a991c21SManish Rangankar 29832a991c21SManish Rangankar static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 29842a991c21SManish Rangankar { 29852a991c21SManish Rangankar struct iscsi_boot_kobj *boot_kobj; 29862a991c21SManish Rangankar 29872a991c21SManish Rangankar if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 29882a991c21SManish Rangankar return 0; 29892a991c21SManish Rangankar 29902a991c21SManish Rangankar ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 29912a991c21SManish Rangankar if (!ha->boot_kset) 29922a991c21SManish Rangankar goto kset_free; 29932a991c21SManish Rangankar 29942a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 29952a991c21SManish Rangankar goto kset_free; 29962a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 29972a991c21SManish Rangankar qla4xxx_show_boot_tgt_pri_info, 29982a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 29992a991c21SManish Rangankar qla4xxx_boot_release); 30002a991c21SManish Rangankar if (!boot_kobj) 30012a991c21SManish Rangankar goto put_host; 30022a991c21SManish Rangankar 30032a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 30042a991c21SManish Rangankar goto kset_free; 30052a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 30062a991c21SManish Rangankar qla4xxx_show_boot_tgt_sec_info, 30072a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 30082a991c21SManish Rangankar qla4xxx_boot_release); 30092a991c21SManish Rangankar if (!boot_kobj) 30102a991c21SManish Rangankar goto put_host; 30112a991c21SManish Rangankar 30122a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 30132a991c21SManish Rangankar goto kset_free; 30142a991c21SManish Rangankar boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 30152a991c21SManish Rangankar qla4xxx_show_boot_ini_info, 30162a991c21SManish Rangankar qla4xxx_ini_get_attr_visibility, 30172a991c21SManish Rangankar qla4xxx_boot_release); 30182a991c21SManish Rangankar if (!boot_kobj) 30192a991c21SManish Rangankar goto put_host; 30202a991c21SManish Rangankar 30212a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 30222a991c21SManish Rangankar goto kset_free; 30232a991c21SManish Rangankar boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 30242a991c21SManish Rangankar qla4xxx_show_boot_eth_info, 30252a991c21SManish Rangankar qla4xxx_eth_get_attr_visibility, 30262a991c21SManish Rangankar qla4xxx_boot_release); 30272a991c21SManish Rangankar if (!boot_kobj) 30282a991c21SManish Rangankar goto put_host; 30292a991c21SManish Rangankar 30302a991c21SManish Rangankar return 0; 30312a991c21SManish Rangankar 30322a991c21SManish Rangankar put_host: 30332a991c21SManish Rangankar scsi_host_put(ha->host); 30342a991c21SManish Rangankar kset_free: 30352a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 30362a991c21SManish Rangankar return -ENOMEM; 30372a991c21SManish Rangankar } 30382a991c21SManish Rangankar 3039afaf5a2dSDavid Somayajulu /** 3040afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 3041afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 3042afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 3043afaf5a2dSDavid Somayajulu * 3044afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 3045afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 3046afaf5a2dSDavid Somayajulu * the driver. 3047afaf5a2dSDavid Somayajulu **/ 3048afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 3049afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 3050afaf5a2dSDavid Somayajulu { 3051afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 3052afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 3053afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 3054afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 3055afaf5a2dSDavid Somayajulu char buf[34]; 3056f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 3057f9880e76SPrasanna Mumbai uint32_t dev_state; 3058afaf5a2dSDavid Somayajulu 3059afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 3060afaf5a2dSDavid Somayajulu return -1; 3061afaf5a2dSDavid Somayajulu 3062b3a271a9SManish Rangankar host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 3063afaf5a2dSDavid Somayajulu if (host == NULL) { 3064afaf5a2dSDavid Somayajulu printk(KERN_WARNING 3065afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 3066afaf5a2dSDavid Somayajulu goto probe_disable_device; 3067afaf5a2dSDavid Somayajulu } 3068afaf5a2dSDavid Somayajulu 3069afaf5a2dSDavid Somayajulu /* Clear our data area */ 3070b3a271a9SManish Rangankar ha = to_qla_host(host); 3071afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 3072afaf5a2dSDavid Somayajulu 3073afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 3074afaf5a2dSDavid Somayajulu ha->pdev = pdev; 3075afaf5a2dSDavid Somayajulu ha->host = host; 3076afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 3077afaf5a2dSDavid Somayajulu 30782232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 30792232be0dSLalit Chandivade 3080f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 3081f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3082f4f5df23SVikas Chaudhary ha->isp_ops = &qla4_8xxx_isp_ops; 3083f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 3084f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 3085f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 3086f4f5df23SVikas Chaudhary ha->curr_window = 255; 3087f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 3088f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 3089f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 3090f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 3091f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 3092f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 3093f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 3094f4f5df23SVikas Chaudhary } else { 3095f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 3096f4f5df23SVikas Chaudhary } 3097f4f5df23SVikas Chaudhary 30982232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 30992232be0dSLalit Chandivade if (is_qla8022(ha)) 31002232be0dSLalit Chandivade pdev->needs_freset = 1; 31012232be0dSLalit Chandivade 3102afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 3103f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 3104afaf5a2dSDavid Somayajulu if (ret) 3105f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 3106afaf5a2dSDavid Somayajulu 3107c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 3108afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 3109afaf5a2dSDavid Somayajulu 3110afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 3111afaf5a2dSDavid Somayajulu 3112afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 3113afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 3114afaf5a2dSDavid Somayajulu 3115afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 3116f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 3117afaf5a2dSDavid Somayajulu 3118afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 3119afaf5a2dSDavid Somayajulu 3120afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 3121afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 3122c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3123afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 3124afaf5a2dSDavid Somayajulu 3125afaf5a2dSDavid Somayajulu ret = -ENOMEM; 3126afaf5a2dSDavid Somayajulu goto probe_failed; 3127afaf5a2dSDavid Somayajulu } 3128afaf5a2dSDavid Somayajulu 3129b3a271a9SManish Rangankar host->cmd_per_lun = 3; 3130b3a271a9SManish Rangankar host->max_channel = 0; 3131b3a271a9SManish Rangankar host->max_lun = MAX_LUNS - 1; 3132b3a271a9SManish Rangankar host->max_id = MAX_TARGETS; 3133b3a271a9SManish Rangankar host->max_cmd_len = IOCB_MAX_CDB_LEN; 3134b3a271a9SManish Rangankar host->can_queue = MAX_SRBS ; 3135b3a271a9SManish Rangankar host->transportt = qla4xxx_scsi_transport; 3136b3a271a9SManish Rangankar 3137b3a271a9SManish Rangankar ret = scsi_init_shared_tag_map(host, MAX_SRBS); 3138b3a271a9SManish Rangankar if (ret) { 3139b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 3140b3a271a9SManish Rangankar "%s: scsi_init_shared_tag_map failed\n", __func__); 3141b3a271a9SManish Rangankar goto probe_failed; 3142b3a271a9SManish Rangankar } 3143b3a271a9SManish Rangankar 3144b3a271a9SManish Rangankar pci_set_drvdata(pdev, ha); 3145b3a271a9SManish Rangankar 3146b3a271a9SManish Rangankar ret = scsi_add_host(host, &pdev->dev); 3147b3a271a9SManish Rangankar if (ret) 3148b3a271a9SManish Rangankar goto probe_failed; 3149b3a271a9SManish Rangankar 3150f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 3151f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 3152f4f5df23SVikas Chaudhary 3153afaf5a2dSDavid Somayajulu /* 3154afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 3155afaf5a2dSDavid Somayajulu * firmware 3156afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 3157afaf5a2dSDavid Somayajulu */ 31580e7e8501SManish Rangankar status = qla4xxx_initialize_adapter(ha); 3159f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 3160f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 3161f9880e76SPrasanna Mumbai 3162f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 3163f9880e76SPrasanna Mumbai qla4_8xxx_idc_lock(ha); 3164f9880e76SPrasanna Mumbai dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3165f9880e76SPrasanna Mumbai qla4_8xxx_idc_unlock(ha); 3166f9880e76SPrasanna Mumbai if (dev_state == QLA82XX_DEV_FAILED) { 3167f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 3168f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 3169f9880e76SPrasanna Mumbai __func__); 3170f9880e76SPrasanna Mumbai break; 3171f9880e76SPrasanna Mumbai } 3172f9880e76SPrasanna Mumbai } 3173afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 3174afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 3175f4f5df23SVikas Chaudhary 3176f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 3177f4f5df23SVikas Chaudhary continue; 3178f4f5df23SVikas Chaudhary 31790e7e8501SManish Rangankar status = qla4xxx_initialize_adapter(ha); 3180afaf5a2dSDavid Somayajulu } 3181f4f5df23SVikas Chaudhary 3182f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 3183c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 3184afaf5a2dSDavid Somayajulu 3185fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 3186fe998527SLalit Chandivade /* Put the device in failed state. */ 3187fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 3188fe998527SLalit Chandivade qla4_8xxx_idc_lock(ha); 3189fe998527SLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 3190fe998527SLalit Chandivade QLA82XX_DEV_FAILED); 3191fe998527SLalit Chandivade qla4_8xxx_idc_unlock(ha); 3192fe998527SLalit Chandivade } 3193afaf5a2dSDavid Somayajulu ret = -ENODEV; 3194b3a271a9SManish Rangankar goto remove_host; 3195afaf5a2dSDavid Somayajulu } 3196afaf5a2dSDavid Somayajulu 3197afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 3198afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 3199afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 3200afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 3201afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 3202afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 3203c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 3204afaf5a2dSDavid Somayajulu ret = -ENODEV; 3205b3a271a9SManish Rangankar goto remove_host; 3206afaf5a2dSDavid Somayajulu } 3207c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 3208afaf5a2dSDavid Somayajulu 3209b3a271a9SManish Rangankar sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 3210b3a271a9SManish Rangankar ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 3211b3a271a9SManish Rangankar if (!ha->task_wq) { 3212b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 3213b3a271a9SManish Rangankar ret = -ENODEV; 3214b3a271a9SManish Rangankar goto remove_host; 3215b3a271a9SManish Rangankar } 3216b3a271a9SManish Rangankar 3217f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 3218f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 3219f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 3220f4f5df23SVikas Chaudhary * mbx_intr_enable. 3221f4f5df23SVikas Chaudhary */ 3222f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 3223f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 3224afaf5a2dSDavid Somayajulu if (ret) { 3225f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 3226f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 3227b3a271a9SManish Rangankar goto remove_host; 3228afaf5a2dSDavid Somayajulu } 3229f4f5df23SVikas Chaudhary } 3230afaf5a2dSDavid Somayajulu 32312232be0dSLalit Chandivade pci_save_state(ha->pdev); 3232f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 3233afaf5a2dSDavid Somayajulu 3234afaf5a2dSDavid Somayajulu /* Start timer thread. */ 3235afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 3236afaf5a2dSDavid Somayajulu 3237afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 3238afaf5a2dSDavid Somayajulu 3239afaf5a2dSDavid Somayajulu printk(KERN_INFO 3240afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 3241afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 3242afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 3243afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 3244afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 3245ed1086e0SVikas Chaudhary 32462a991c21SManish Rangankar if (qla4xxx_setup_boot_info(ha)) 32472a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n", 32482a991c21SManish Rangankar __func__); 32492a991c21SManish Rangankar 3250ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 3251afaf5a2dSDavid Somayajulu return 0; 3252afaf5a2dSDavid Somayajulu 3253b3a271a9SManish Rangankar remove_host: 3254b3a271a9SManish Rangankar scsi_remove_host(ha->host); 3255b3a271a9SManish Rangankar 3256afaf5a2dSDavid Somayajulu probe_failed: 3257afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 3258f4f5df23SVikas Chaudhary 3259f4f5df23SVikas Chaudhary probe_failed_ioconfig: 32602232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 3261afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 3262afaf5a2dSDavid Somayajulu 3263afaf5a2dSDavid Somayajulu probe_disable_device: 3264afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 3265afaf5a2dSDavid Somayajulu 3266afaf5a2dSDavid Somayajulu return ret; 3267afaf5a2dSDavid Somayajulu } 3268afaf5a2dSDavid Somayajulu 3269afaf5a2dSDavid Somayajulu /** 32707eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 32717eece5a0SKaren Higgins * @ha: pointer to adapter structure 32727eece5a0SKaren Higgins * 32737eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 32747eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 32757eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 32767eece5a0SKaren Higgins **/ 32777eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 32787eece5a0SKaren Higgins { 32797eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 32807eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 32817eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 32827eece5a0SKaren Higgins 32837eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 32847eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 32857eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 32867eece5a0SKaren Higgins 32877eece5a0SKaren Higgins other_pdev = 32887eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 32897eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 32907eece5a0SKaren Higgins fn)); 32917eece5a0SKaren Higgins 32927eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 32937eece5a0SKaren Higgins if (other_pdev) { 32947eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 32957eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 32967eece5a0SKaren Higgins if (other_ha) { 32977eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 32987eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 32997eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 33007eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 33017eece5a0SKaren Higgins } 33027eece5a0SKaren Higgins } 33037eece5a0SKaren Higgins pci_dev_put(other_pdev); 33047eece5a0SKaren Higgins } 33057eece5a0SKaren Higgins } 33067eece5a0SKaren Higgins 33077eece5a0SKaren Higgins /** 3308afaf5a2dSDavid Somayajulu * qla4xxx_remove_adapter - calback function to remove adapter. 3309afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 3310afaf5a2dSDavid Somayajulu **/ 3311afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 3312afaf5a2dSDavid Somayajulu { 3313afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 3314afaf5a2dSDavid Somayajulu 3315afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 3316afaf5a2dSDavid Somayajulu 33177eece5a0SKaren Higgins if (!is_qla8022(ha)) 33187eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 3319bee4fe8eSDavid C Somayajulu 3320ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 3321ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 3322ed1086e0SVikas Chaudhary 33232a991c21SManish Rangankar if (ha->boot_kset) 33242a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 33252a991c21SManish Rangankar 3326afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 3327afaf5a2dSDavid Somayajulu 3328afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 3329afaf5a2dSDavid Somayajulu 3330afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 3331afaf5a2dSDavid Somayajulu 33322232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 3333f4f5df23SVikas Chaudhary pci_disable_device(pdev); 3334afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 3335afaf5a2dSDavid Somayajulu } 3336afaf5a2dSDavid Somayajulu 3337afaf5a2dSDavid Somayajulu /** 3338afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 3339afaf5a2dSDavid Somayajulu * @ha: HA context 3340afaf5a2dSDavid Somayajulu * 3341afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 3342afaf5a2dSDavid Somayajulu * supported addressing method. 3343afaf5a2dSDavid Somayajulu */ 334447975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 3345afaf5a2dSDavid Somayajulu { 3346afaf5a2dSDavid Somayajulu int retval; 3347afaf5a2dSDavid Somayajulu 3348afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 33496a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 33506a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 3351afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 3352afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 3353afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 3354afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 3355284901a9SYang Hongyang DMA_BIT_MASK(32)); 3356afaf5a2dSDavid Somayajulu } 3357afaf5a2dSDavid Somayajulu } else 3358284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 3359afaf5a2dSDavid Somayajulu } 3360afaf5a2dSDavid Somayajulu 3361afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 3362afaf5a2dSDavid Somayajulu { 3363b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 3364b3a271a9SManish Rangankar struct iscsi_session *sess; 3365b3a271a9SManish Rangankar struct ddb_entry *ddb; 33668bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 3367afaf5a2dSDavid Somayajulu 3368b3a271a9SManish Rangankar cls_sess = starget_to_session(sdev->sdev_target); 3369b3a271a9SManish Rangankar sess = cls_sess->dd_data; 3370b3a271a9SManish Rangankar ddb = sess->dd_data; 3371b3a271a9SManish Rangankar 3372afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 3373afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 33748bb4033dSVikas Chaudhary 33758bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 33768bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 33778bb4033dSVikas Chaudhary 33788bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 3379afaf5a2dSDavid Somayajulu return 0; 3380afaf5a2dSDavid Somayajulu } 3381afaf5a2dSDavid Somayajulu 3382afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 3383afaf5a2dSDavid Somayajulu { 3384afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 3385afaf5a2dSDavid Somayajulu return 0; 3386afaf5a2dSDavid Somayajulu } 3387afaf5a2dSDavid Somayajulu 3388afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 3389afaf5a2dSDavid Somayajulu { 3390afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 3391afaf5a2dSDavid Somayajulu } 3392afaf5a2dSDavid Somayajulu 3393afaf5a2dSDavid Somayajulu /** 3394afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 3395afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 3396fd589a8fSAnand Gadiyar * @index: index into the active_array 3397afaf5a2dSDavid Somayajulu * 3398afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 3399afaf5a2dSDavid Somayajulu **/ 3400f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 3401f4f5df23SVikas Chaudhary uint32_t index) 3402afaf5a2dSDavid Somayajulu { 3403afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 34045369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 3405afaf5a2dSDavid Somayajulu 34065369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 34075369887aSVikas Chaudhary if (!cmd) 3408afaf5a2dSDavid Somayajulu return srb; 3409afaf5a2dSDavid Somayajulu 34105369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 34115369887aSVikas Chaudhary if (!srb) 3412afaf5a2dSDavid Somayajulu return srb; 3413afaf5a2dSDavid Somayajulu 3414afaf5a2dSDavid Somayajulu /* update counters */ 3415afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 3416afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 3417afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 3418afaf5a2dSDavid Somayajulu if (srb->cmd) 34195369887aSVikas Chaudhary srb->cmd->host_scribble = 34205369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 3421afaf5a2dSDavid Somayajulu } 3422afaf5a2dSDavid Somayajulu return srb; 3423afaf5a2dSDavid Somayajulu } 3424afaf5a2dSDavid Somayajulu 3425afaf5a2dSDavid Somayajulu /** 3426afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 342709a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 3428afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 3429afaf5a2dSDavid Somayajulu * 3430afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 3431afaf5a2dSDavid Somayajulu * for some max time. 3432afaf5a2dSDavid Somayajulu **/ 3433afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 3434afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 3435afaf5a2dSDavid Somayajulu { 3436afaf5a2dSDavid Somayajulu int done = 0; 3437afaf5a2dSDavid Somayajulu struct srb *rp; 3438afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 34392232be0dSLalit Chandivade int ret = SUCCESS; 34402232be0dSLalit Chandivade 34412232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 34422232be0dSLalit Chandivade * by PCI AER driver 34432232be0dSLalit Chandivade */ 34442232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 34452232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 34462232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 34472232be0dSLalit Chandivade ha->host_no, __func__); 34482232be0dSLalit Chandivade return ret; 34492232be0dSLalit Chandivade } 3450afaf5a2dSDavid Somayajulu 3451afaf5a2dSDavid Somayajulu do { 3452afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 34535369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 3454afaf5a2dSDavid Somayajulu if (rp == NULL) { 3455afaf5a2dSDavid Somayajulu done++; 3456afaf5a2dSDavid Somayajulu break; 3457afaf5a2dSDavid Somayajulu } 3458afaf5a2dSDavid Somayajulu 3459afaf5a2dSDavid Somayajulu msleep(2000); 3460afaf5a2dSDavid Somayajulu } while (max_wait_time--); 3461afaf5a2dSDavid Somayajulu 3462afaf5a2dSDavid Somayajulu return done; 3463afaf5a2dSDavid Somayajulu } 3464afaf5a2dSDavid Somayajulu 3465afaf5a2dSDavid Somayajulu /** 3466afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 3467afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 3468afaf5a2dSDavid Somayajulu **/ 3469afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 3470afaf5a2dSDavid Somayajulu { 3471afaf5a2dSDavid Somayajulu unsigned long wait_online; 3472afaf5a2dSDavid Somayajulu 3473f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 3474afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 3475afaf5a2dSDavid Somayajulu 3476afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 3477afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 3478afaf5a2dSDavid Somayajulu 3479afaf5a2dSDavid Somayajulu msleep(2000); 3480afaf5a2dSDavid Somayajulu } 3481afaf5a2dSDavid Somayajulu 3482afaf5a2dSDavid Somayajulu return QLA_ERROR; 3483afaf5a2dSDavid Somayajulu } 3484afaf5a2dSDavid Somayajulu 3485afaf5a2dSDavid Somayajulu /** 3486ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 3487fd589a8fSAnand Gadiyar * @ha: pointer to HBA 3488afaf5a2dSDavid Somayajulu * @t: target id 3489afaf5a2dSDavid Somayajulu * @l: lun id 3490afaf5a2dSDavid Somayajulu * 3491afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 3492afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 3493afaf5a2dSDavid Somayajulu **/ 3494ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 3495ce545039SMike Christie struct scsi_target *stgt, 3496ce545039SMike Christie struct scsi_device *sdev) 3497afaf5a2dSDavid Somayajulu { 3498afaf5a2dSDavid Somayajulu int cnt; 3499afaf5a2dSDavid Somayajulu int status = 0; 3500afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 3501afaf5a2dSDavid Somayajulu 3502afaf5a2dSDavid Somayajulu /* 3503ce545039SMike Christie * Waiting for all commands for the designated target or dev 3504ce545039SMike Christie * in the active array 3505afaf5a2dSDavid Somayajulu */ 3506afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 3507afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 3508ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 3509ce545039SMike Christie (!sdev || sdev == cmd->device)) { 3510afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 3511afaf5a2dSDavid Somayajulu status++; 3512afaf5a2dSDavid Somayajulu break; 3513afaf5a2dSDavid Somayajulu } 3514afaf5a2dSDavid Somayajulu } 3515afaf5a2dSDavid Somayajulu } 3516afaf5a2dSDavid Somayajulu return status; 3517afaf5a2dSDavid Somayajulu } 3518afaf5a2dSDavid Somayajulu 3519afaf5a2dSDavid Somayajulu /** 352009a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 352109a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 352209a0f719SVikas Chaudhary * 352309a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 352409a0f719SVikas Chaudhary * command. 352509a0f719SVikas Chaudhary **/ 352609a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 352709a0f719SVikas Chaudhary { 352809a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 352909a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 353009a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 353192b3e5bbSMike Christie unsigned long flags; 353209a0f719SVikas Chaudhary struct srb *srb = NULL; 353309a0f719SVikas Chaudhary int ret = SUCCESS; 353409a0f719SVikas Chaudhary int wait = 0; 353509a0f719SVikas Chaudhary 3536c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 35375cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 35385cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 353909a0f719SVikas Chaudhary 354092b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 354109a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 354292b3e5bbSMike Christie if (!srb) { 354392b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 354409a0f719SVikas Chaudhary return SUCCESS; 354592b3e5bbSMike Christie } 354609a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 354792b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 354809a0f719SVikas Chaudhary 354909a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 355009a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 355109a0f719SVikas Chaudhary ha->host_no, id, lun)); 355209a0f719SVikas Chaudhary ret = FAILED; 355309a0f719SVikas Chaudhary } else { 355409a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 355509a0f719SVikas Chaudhary ha->host_no, id, lun)); 355609a0f719SVikas Chaudhary wait = 1; 355709a0f719SVikas Chaudhary } 355809a0f719SVikas Chaudhary 355909a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 356009a0f719SVikas Chaudhary 356109a0f719SVikas Chaudhary /* Wait for command to complete */ 356209a0f719SVikas Chaudhary if (wait) { 356309a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 356409a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 356509a0f719SVikas Chaudhary ha->host_no, id, lun)); 356609a0f719SVikas Chaudhary ret = FAILED; 356709a0f719SVikas Chaudhary } 356809a0f719SVikas Chaudhary } 356909a0f719SVikas Chaudhary 3570c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 357109a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 357225985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 357309a0f719SVikas Chaudhary 357409a0f719SVikas Chaudhary return ret; 357509a0f719SVikas Chaudhary } 357609a0f719SVikas Chaudhary 357709a0f719SVikas Chaudhary /** 3578afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 3579afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 3580afaf5a2dSDavid Somayajulu * 3581afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 3582afaf5a2dSDavid Somayajulu * specified target. 3583afaf5a2dSDavid Somayajulu **/ 3584afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 3585afaf5a2dSDavid Somayajulu { 3586afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 3587afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 3588afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 3589afaf5a2dSDavid Somayajulu 3590612f7348SKaren Higgins if (!ddb_entry) 3591afaf5a2dSDavid Somayajulu return ret; 3592afaf5a2dSDavid Somayajulu 3593c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 3594c01be6dcSMike Christie if (ret) 3595c01be6dcSMike Christie return ret; 3596c01be6dcSMike Christie ret = FAILED; 3597c01be6dcSMike Christie 3598c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3599afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 3600afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 3601afaf5a2dSDavid Somayajulu 3602afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 3603afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 3604afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 3605242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 3606afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 3607afaf5a2dSDavid Somayajulu 3608afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 3609afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 3610afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 3611c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 3612afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 3613afaf5a2dSDavid Somayajulu } 3614afaf5a2dSDavid Somayajulu 3615ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 3616ce545039SMike Christie cmd->device)) { 3617c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3618afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 3619afaf5a2dSDavid Somayajulu "commands.\n"); 3620afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 3621afaf5a2dSDavid Somayajulu } 3622afaf5a2dSDavid Somayajulu 36239d562913SDavid C Somayajulu /* Send marker. */ 36249d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 36259d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 36269d562913SDavid C Somayajulu goto eh_dev_reset_done; 36279d562913SDavid C Somayajulu 3628c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3629afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 3630afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 3631afaf5a2dSDavid Somayajulu cmd->device->lun); 3632afaf5a2dSDavid Somayajulu 3633afaf5a2dSDavid Somayajulu ret = SUCCESS; 3634afaf5a2dSDavid Somayajulu 3635afaf5a2dSDavid Somayajulu eh_dev_reset_done: 3636afaf5a2dSDavid Somayajulu 3637afaf5a2dSDavid Somayajulu return ret; 3638afaf5a2dSDavid Somayajulu } 3639afaf5a2dSDavid Somayajulu 3640afaf5a2dSDavid Somayajulu /** 3641ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 3642ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 3643ce545039SMike Christie * 3644ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 3645ce545039SMike Christie **/ 3646ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 3647ce545039SMike Christie { 3648ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 3649ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 3650c01be6dcSMike Christie int stat, ret; 3651ce545039SMike Christie 3652ce545039SMike Christie if (!ddb_entry) 3653ce545039SMike Christie return FAILED; 3654ce545039SMike Christie 3655c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 3656c01be6dcSMike Christie if (ret) 3657c01be6dcSMike Christie return ret; 3658c01be6dcSMike Christie 3659ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3660ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 3661ce545039SMike Christie 3662ce545039SMike Christie DEBUG2(printk(KERN_INFO 3663ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 3664ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 3665242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 3666ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 3667ce545039SMike Christie 3668ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 3669ce545039SMike Christie if (stat != QLA_SUCCESS) { 3670ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3671ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 3672ce545039SMike Christie return FAILED; 3673ce545039SMike Christie } 3674ce545039SMike Christie 3675ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 3676ce545039SMike Christie NULL)) { 3677ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3678ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 3679ce545039SMike Christie "waiting for commands.\n"); 3680ce545039SMike Christie return FAILED; 3681ce545039SMike Christie } 3682ce545039SMike Christie 36839d562913SDavid C Somayajulu /* Send marker. */ 36849d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 36859d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 36869d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 36879d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 36889d562913SDavid C Somayajulu "marker iocb failed.\n"); 36899d562913SDavid C Somayajulu return FAILED; 36909d562913SDavid C Somayajulu } 36919d562913SDavid C Somayajulu 3692ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3693ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 3694ce545039SMike Christie return SUCCESS; 3695ce545039SMike Christie } 3696ce545039SMike Christie 3697ce545039SMike Christie /** 3698afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 3699afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 3700afaf5a2dSDavid Somayajulu * 3701afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 3702afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 3703afaf5a2dSDavid Somayajulu **/ 3704afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 3705afaf5a2dSDavid Somayajulu { 3706afaf5a2dSDavid Somayajulu int return_status = FAILED; 3707afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 3708afaf5a2dSDavid Somayajulu 3709b3a271a9SManish Rangankar ha = to_qla_host(cmd->device->host); 3710afaf5a2dSDavid Somayajulu 3711f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 3712f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 3713f4f5df23SVikas Chaudhary ha->host_no, __func__)); 3714f4f5df23SVikas Chaudhary return FAILED; 3715f4f5df23SVikas Chaudhary } 3716f4f5df23SVikas Chaudhary 3717c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3718dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 3719afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 3720afaf5a2dSDavid Somayajulu 3721afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 3722afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 3723afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 3724afaf5a2dSDavid Somayajulu __func__)); 3725afaf5a2dSDavid Somayajulu 3726afaf5a2dSDavid Somayajulu return FAILED; 3727afaf5a2dSDavid Somayajulu } 3728afaf5a2dSDavid Somayajulu 3729f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 3730f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 3731f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3732f4f5df23SVikas Chaudhary else 3733f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 3734f4f5df23SVikas Chaudhary } 373550a29aecSMike Christie 3736f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 3737afaf5a2dSDavid Somayajulu return_status = SUCCESS; 3738afaf5a2dSDavid Somayajulu 3739c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 374025985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 3741afaf5a2dSDavid Somayajulu 3742afaf5a2dSDavid Somayajulu return return_status; 3743afaf5a2dSDavid Somayajulu } 3744afaf5a2dSDavid Somayajulu 37452232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 37462232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 37472232be0dSLalit Chandivade * driver calls the following device driver's callbacks 37482232be0dSLalit Chandivade * 37492232be0dSLalit Chandivade * - Fatal Errors - link_reset 37502232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 37512232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 37522232be0dSLalit Chandivade * 37532232be0dSLalit Chandivade * PCI AER driver calls 37542232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 37552232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 37562232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 37572232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 37582232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 37592232be0dSLalit Chandivade */ 37602232be0dSLalit Chandivade static pci_ers_result_t 37612232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 37622232be0dSLalit Chandivade { 37632232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 37642232be0dSLalit Chandivade 37652232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 37662232be0dSLalit Chandivade ha->host_no, __func__, state); 37672232be0dSLalit Chandivade 37682232be0dSLalit Chandivade if (!is_aer_supported(ha)) 37692232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 37702232be0dSLalit Chandivade 37712232be0dSLalit Chandivade switch (state) { 37722232be0dSLalit Chandivade case pci_channel_io_normal: 37732232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 37742232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 37752232be0dSLalit Chandivade case pci_channel_io_frozen: 37762232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 37772232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 37782232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 37792232be0dSLalit Chandivade pci_disable_device(pdev); 37807b3595dfSVikas Chaudhary /* Return back all IOs */ 37817b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 37822232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 37832232be0dSLalit Chandivade case pci_channel_io_perm_failure: 37842232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 37852232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 37862232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 37872232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 37882232be0dSLalit Chandivade } 37892232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 37902232be0dSLalit Chandivade } 37912232be0dSLalit Chandivade 37922232be0dSLalit Chandivade /** 37932232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 37942232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 37952232be0dSLalit Chandivade * and read/write to the device still works. 37962232be0dSLalit Chandivade **/ 37972232be0dSLalit Chandivade static pci_ers_result_t 37982232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 37992232be0dSLalit Chandivade { 38002232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 38012232be0dSLalit Chandivade 38022232be0dSLalit Chandivade if (!is_aer_supported(ha)) 38032232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 38042232be0dSLalit Chandivade 38052232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 38062232be0dSLalit Chandivade } 38072232be0dSLalit Chandivade 38087b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 38092232be0dSLalit Chandivade { 38102232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 38117b3595dfSVikas Chaudhary uint32_t ret = 0; 38122232be0dSLalit Chandivade int fn; 38132232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 38142232be0dSLalit Chandivade 38152232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 38162232be0dSLalit Chandivade 38172232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 38182232be0dSLalit Chandivade 38192232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 38202232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 3821b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 3822b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 38232232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 38242232be0dSLalit Chandivade } 38252232be0dSLalit Chandivade 38262232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 38272232be0dSLalit Chandivade while (fn > 0) { 38282232be0dSLalit Chandivade fn--; 38292232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 38302232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 38312232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 38322232be0dSLalit Chandivade * slot/function number */ 38332232be0dSLalit Chandivade other_pdev = 38342232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 38352232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 38362232be0dSLalit Chandivade fn)); 38372232be0dSLalit Chandivade 38382232be0dSLalit Chandivade if (!other_pdev) 38392232be0dSLalit Chandivade continue; 38402232be0dSLalit Chandivade 38412232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 38422232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 38432232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 38442232be0dSLalit Chandivade __func__, fn); 38452232be0dSLalit Chandivade pci_dev_put(other_pdev); 38462232be0dSLalit Chandivade break; 38472232be0dSLalit Chandivade } 38482232be0dSLalit Chandivade pci_dev_put(other_pdev); 38492232be0dSLalit Chandivade } 38502232be0dSLalit Chandivade 38512232be0dSLalit Chandivade /* The first function on the card, the reset owner will 38522232be0dSLalit Chandivade * start & initialize the firmware. The other functions 38532232be0dSLalit Chandivade * on the card will reset the firmware context 38542232be0dSLalit Chandivade */ 38552232be0dSLalit Chandivade if (!fn) { 38562232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 38572232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 38582232be0dSLalit Chandivade ha->pdev->devfn); 38592232be0dSLalit Chandivade 38602232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 38612232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 38622232be0dSLalit Chandivade QLA82XX_DEV_COLD); 38632232be0dSLalit Chandivade 38642232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 38652232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 38662232be0dSLalit Chandivade 38672232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 38682232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 38690e7e8501SManish Rangankar rval = qla4xxx_initialize_adapter(ha); 38702232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 38712232be0dSLalit Chandivade 38722232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 38732232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 38742232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 38752232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 38762232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 38772232be0dSLalit Chandivade QLA82XX_DEV_FAILED); 38782232be0dSLalit Chandivade } else { 38792232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 38802232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 38812232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 38822232be0dSLalit Chandivade QLA82XX_DEV_READY); 38832232be0dSLalit Chandivade /* Clear driver state register */ 38842232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 38852232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 38867b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 38877b3595dfSVikas Chaudhary if (ret) { 38887b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 38897b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 38907b3595dfSVikas Chaudhary ha->pdev->irq); 38917b3595dfSVikas Chaudhary rval = QLA_ERROR; 38927b3595dfSVikas Chaudhary } else { 38932232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 38947b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 38957b3595dfSVikas Chaudhary } 38962232be0dSLalit Chandivade } 38972232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 38982232be0dSLalit Chandivade } else { 38992232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 39002232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 39012232be0dSLalit Chandivade ha->pdev->devfn); 39022232be0dSLalit Chandivade if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 39032232be0dSLalit Chandivade QLA82XX_DEV_READY)) { 39042232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 39050e7e8501SManish Rangankar rval = qla4xxx_initialize_adapter(ha); 39067b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 39077b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 39087b3595dfSVikas Chaudhary if (ret) { 39097b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 39107b3595dfSVikas Chaudhary " reserve interrupt %d already in" 39117b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 39127b3595dfSVikas Chaudhary rval = QLA_ERROR; 39137b3595dfSVikas Chaudhary } else { 39142232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 39157b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 39167b3595dfSVikas Chaudhary } 39177b3595dfSVikas Chaudhary } 39182232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 39192232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 39202232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 39212232be0dSLalit Chandivade } 39222232be0dSLalit Chandivade } 39232232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 39242232be0dSLalit Chandivade return rval; 39252232be0dSLalit Chandivade } 39262232be0dSLalit Chandivade 39272232be0dSLalit Chandivade static pci_ers_result_t 39282232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 39292232be0dSLalit Chandivade { 39302232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 39312232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 39322232be0dSLalit Chandivade int rc; 39332232be0dSLalit Chandivade 39342232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 39352232be0dSLalit Chandivade ha->host_no, __func__); 39362232be0dSLalit Chandivade 39372232be0dSLalit Chandivade if (!is_aer_supported(ha)) 39382232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 39392232be0dSLalit Chandivade 39402232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 39412232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 39422232be0dSLalit Chandivade * IOV states 39432232be0dSLalit Chandivade */ 39442232be0dSLalit Chandivade pci_restore_state(pdev); 39452232be0dSLalit Chandivade 39462232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 39472232be0dSLalit Chandivade * save restored state which resets saved_state flag 39482232be0dSLalit Chandivade */ 39492232be0dSLalit Chandivade pci_save_state(pdev); 39502232be0dSLalit Chandivade 39512232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 39522232be0dSLalit Chandivade rc = pci_enable_device(pdev); 39532232be0dSLalit Chandivade if (rc) { 395425985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 39552232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 39562232be0dSLalit Chandivade goto exit_slot_reset; 39572232be0dSLalit Chandivade } 39582232be0dSLalit Chandivade 39597b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 39602232be0dSLalit Chandivade 39612232be0dSLalit Chandivade if (is_qla8022(ha)) { 39622232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 39632232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 39642232be0dSLalit Chandivade goto exit_slot_reset; 39652232be0dSLalit Chandivade } else 39662232be0dSLalit Chandivade goto exit_slot_reset; 39672232be0dSLalit Chandivade } 39682232be0dSLalit Chandivade 39692232be0dSLalit Chandivade exit_slot_reset: 39702232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 39712232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 39722232be0dSLalit Chandivade return ret; 39732232be0dSLalit Chandivade } 39742232be0dSLalit Chandivade 39752232be0dSLalit Chandivade static void 39762232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 39772232be0dSLalit Chandivade { 39782232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 39792232be0dSLalit Chandivade int ret; 39802232be0dSLalit Chandivade 39812232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 39822232be0dSLalit Chandivade ha->host_no, __func__); 39832232be0dSLalit Chandivade 39842232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 39852232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 39862232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 39872232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 39882232be0dSLalit Chandivade __func__); 39892232be0dSLalit Chandivade } 39902232be0dSLalit Chandivade 39912232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 39922232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 39932232be0dSLalit Chandivade } 39942232be0dSLalit Chandivade 39952232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 39962232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 39972232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 39982232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 39992232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 40002232be0dSLalit Chandivade }; 40012232be0dSLalit Chandivade 4002afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 4003afaf5a2dSDavid Somayajulu { 4004afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 4005afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 4006afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 4007afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 4008afaf5a2dSDavid Somayajulu }, 4009afaf5a2dSDavid Somayajulu { 4010afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 4011afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 4012afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 4013afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 4014afaf5a2dSDavid Somayajulu }, 4015d915058fSDavid C Somayajulu { 4016d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 4017d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 4018d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 4019d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 4020d915058fSDavid C Somayajulu }, 4021f4f5df23SVikas Chaudhary { 4022f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 4023f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 4024f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 4025f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 4026f4f5df23SVikas Chaudhary }, 4027afaf5a2dSDavid Somayajulu {0, 0}, 4028afaf5a2dSDavid Somayajulu }; 4029afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 4030afaf5a2dSDavid Somayajulu 403147975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 4032afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 4033afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 4034afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 4035afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 40362232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 4037afaf5a2dSDavid Somayajulu }; 4038afaf5a2dSDavid Somayajulu 4039afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 4040afaf5a2dSDavid Somayajulu { 4041afaf5a2dSDavid Somayajulu int ret; 4042afaf5a2dSDavid Somayajulu 4043afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 4044afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 404520c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 4046afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 4047afaf5a2dSDavid Somayajulu printk(KERN_ERR 4048afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 4049afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 4050afaf5a2dSDavid Somayajulu ret = -ENOMEM; 4051afaf5a2dSDavid Somayajulu goto no_srp_cache; 4052afaf5a2dSDavid Somayajulu } 4053afaf5a2dSDavid Somayajulu 4054afaf5a2dSDavid Somayajulu /* Derive version string. */ 4055afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 405611010fecSAndrew Vasquez if (ql4xextended_error_logging) 4057afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 4058afaf5a2dSDavid Somayajulu 4059afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 4060afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 4061afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 4062afaf5a2dSDavid Somayajulu ret = -ENODEV; 4063afaf5a2dSDavid Somayajulu goto release_srb_cache; 4064afaf5a2dSDavid Somayajulu } 4065afaf5a2dSDavid Somayajulu 4066afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 4067afaf5a2dSDavid Somayajulu if (ret) 4068afaf5a2dSDavid Somayajulu goto unregister_transport; 4069afaf5a2dSDavid Somayajulu 4070afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 4071afaf5a2dSDavid Somayajulu return 0; 40725ae16db3SDoug Maxey 4073afaf5a2dSDavid Somayajulu unregister_transport: 4074afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 4075afaf5a2dSDavid Somayajulu release_srb_cache: 4076afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 4077afaf5a2dSDavid Somayajulu no_srp_cache: 4078afaf5a2dSDavid Somayajulu return ret; 4079afaf5a2dSDavid Somayajulu } 4080afaf5a2dSDavid Somayajulu 4081afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 4082afaf5a2dSDavid Somayajulu { 4083afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 4084afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 4085afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 4086afaf5a2dSDavid Somayajulu } 4087afaf5a2dSDavid Somayajulu 4088afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 4089afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 4090afaf5a2dSDavid Somayajulu 4091afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 4092afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 4093afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 4094afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 4095