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> 1113483730SMike Christie #include <linux/inet.h> 12afaf5a2dSDavid Somayajulu 13afaf5a2dSDavid Somayajulu #include <scsi/scsi_tcq.h> 14afaf5a2dSDavid Somayajulu #include <scsi/scsicam.h> 15afaf5a2dSDavid Somayajulu 16afaf5a2dSDavid Somayajulu #include "ql4_def.h" 17bee4fe8eSDavid C Somayajulu #include "ql4_version.h" 18bee4fe8eSDavid C Somayajulu #include "ql4_glbl.h" 19bee4fe8eSDavid C Somayajulu #include "ql4_dbg.h" 20bee4fe8eSDavid C Somayajulu #include "ql4_inline.h" 21afaf5a2dSDavid Somayajulu 22afaf5a2dSDavid Somayajulu /* 23afaf5a2dSDavid Somayajulu * Driver version 24afaf5a2dSDavid Somayajulu */ 2547975477SAdrian Bunk static char qla4xxx_version_str[40]; 26afaf5a2dSDavid Somayajulu 27afaf5a2dSDavid Somayajulu /* 28afaf5a2dSDavid Somayajulu * SRB allocation cache 29afaf5a2dSDavid Somayajulu */ 30e18b890bSChristoph Lameter static struct kmem_cache *srb_cachep; 31afaf5a2dSDavid Somayajulu 32afaf5a2dSDavid Somayajulu /* 33afaf5a2dSDavid Somayajulu * Module parameter information and variables 34afaf5a2dSDavid Somayajulu */ 3513483730SMike Christie int ql4xdisablesysfsboot = 1; 3613483730SMike Christie module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); 3713483730SMike Christie MODULE_PARM_DESC(ql4xdisablesysfsboot, 3813483730SMike Christie "Set to disable exporting boot targets to sysfs\n" 3913483730SMike Christie " 0 - Export boot targets\n" 4013483730SMike Christie " 1 - Do not export boot targets (Default)"); 4113483730SMike Christie 42afaf5a2dSDavid Somayajulu int ql4xdontresethba = 0; 43f4f5df23SVikas Chaudhary module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 44afaf5a2dSDavid Somayajulu MODULE_PARM_DESC(ql4xdontresethba, 45f4f5df23SVikas Chaudhary "Don't reset the HBA for driver recovery \n" 46f4f5df23SVikas Chaudhary " 0 - It will reset HBA (Default)\n" 47f4f5df23SVikas Chaudhary " 1 - It will NOT reset HBA"); 48afaf5a2dSDavid Somayajulu 4911010fecSAndrew Vasquez int ql4xextended_error_logging = 0; /* 0 = off, 1 = log errors */ 50f4f5df23SVikas Chaudhary module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 5111010fecSAndrew Vasquez MODULE_PARM_DESC(ql4xextended_error_logging, 52afaf5a2dSDavid Somayajulu "Option to enable extended error logging, " 53afaf5a2dSDavid Somayajulu "Default is 0 - no logging, 1 - debug logging"); 54afaf5a2dSDavid Somayajulu 55f4f5df23SVikas Chaudhary int ql4xenablemsix = 1; 56f4f5df23SVikas Chaudhary module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 57f4f5df23SVikas Chaudhary MODULE_PARM_DESC(ql4xenablemsix, 58f4f5df23SVikas Chaudhary "Set to enable MSI or MSI-X interrupt mechanism.\n" 59f4f5df23SVikas Chaudhary " 0 = enable INTx interrupt mechanism.\n" 60f4f5df23SVikas Chaudhary " 1 = enable MSI-X interrupt mechanism (Default).\n" 61f4f5df23SVikas Chaudhary " 2 = enable MSI interrupt mechanism."); 62477ffb9dSDavid C Somayajulu 63d510d965SMike Christie #define QL4_DEF_QDEPTH 32 648bb4033dSVikas Chaudhary static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 658bb4033dSVikas Chaudhary module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 668bb4033dSVikas Chaudhary MODULE_PARM_DESC(ql4xmaxqdepth, 678bb4033dSVikas Chaudhary "Maximum queue depth to report for target devices.\n" 688bb4033dSVikas Chaudhary " Default: 32."); 69d510d965SMike Christie 703038727cSVikas Chaudhary static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 713038727cSVikas Chaudhary module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 723038727cSVikas Chaudhary MODULE_PARM_DESC(ql4xsess_recovery_tmo, 733038727cSVikas Chaudhary "Target Session Recovery Timeout.\n" 7413483730SMike Christie " Default: 120 sec."); 753038727cSVikas Chaudhary 76b3a271a9SManish Rangankar static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 77afaf5a2dSDavid Somayajulu /* 78afaf5a2dSDavid Somayajulu * SCSI host template entry points 79afaf5a2dSDavid Somayajulu */ 8047975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 81afaf5a2dSDavid Somayajulu 82afaf5a2dSDavid Somayajulu /* 83afaf5a2dSDavid Somayajulu * iSCSI template entry points 84afaf5a2dSDavid Somayajulu */ 85afaf5a2dSDavid Somayajulu static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 86afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf); 87aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 88aa1e93a2SMike Christie enum iscsi_host_param param, char *buf); 8900c31889SMike Christie static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, 9000c31889SMike Christie uint32_t len); 91ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 92ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 93ed1086e0SVikas Chaudhary int param, char *buf); 945c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 95b3a271a9SManish Rangankar static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 96b3a271a9SManish Rangankar struct sockaddr *dst_addr, 97b3a271a9SManish Rangankar int non_blocking); 98b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 99b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 100b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 101b3a271a9SManish Rangankar enum iscsi_param param, char *buf); 102b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 103b3a271a9SManish Rangankar static struct iscsi_cls_conn * 104b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 105b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 106b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 107b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading); 108b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 109b3a271a9SManish Rangankar static struct iscsi_cls_session * 110b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 111b3a271a9SManish Rangankar uint16_t qdepth, uint32_t initial_cmdsn); 112b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 113b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata); 114b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 115b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *); 116b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *); 117b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 118b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 119b3a271a9SManish Rangankar struct iscsi_stats *stats); 120afaf5a2dSDavid Somayajulu /* 121afaf5a2dSDavid Somayajulu * SCSI host template entry points 122afaf5a2dSDavid Somayajulu */ 123f281233dSJeff Garzik static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 12409a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 125afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 126ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 127afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 128afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *device); 129afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *device); 130afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev); 131587a1f16SAl Viro static umode_t ql4_attr_is_visible(int param_type, int param); 13295d31262SVikas Chaudhary static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); 133afaf5a2dSDavid Somayajulu 134f4f5df23SVikas Chaudhary static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 135f4f5df23SVikas Chaudhary QLA82XX_LEGACY_INTR_CONFIG; 136f4f5df23SVikas Chaudhary 137afaf5a2dSDavid Somayajulu static struct scsi_host_template qla4xxx_driver_template = { 138afaf5a2dSDavid Somayajulu .module = THIS_MODULE, 139afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 140afaf5a2dSDavid Somayajulu .proc_name = DRIVER_NAME, 141afaf5a2dSDavid Somayajulu .queuecommand = qla4xxx_queuecommand, 142afaf5a2dSDavid Somayajulu 14309a0f719SVikas Chaudhary .eh_abort_handler = qla4xxx_eh_abort, 144afaf5a2dSDavid Somayajulu .eh_device_reset_handler = qla4xxx_eh_device_reset, 145ce545039SMike Christie .eh_target_reset_handler = qla4xxx_eh_target_reset, 146afaf5a2dSDavid Somayajulu .eh_host_reset_handler = qla4xxx_eh_host_reset, 1475c656af7SMike Christie .eh_timed_out = qla4xxx_eh_cmd_timed_out, 148afaf5a2dSDavid Somayajulu 149afaf5a2dSDavid Somayajulu .slave_configure = qla4xxx_slave_configure, 150afaf5a2dSDavid Somayajulu .slave_alloc = qla4xxx_slave_alloc, 151afaf5a2dSDavid Somayajulu .slave_destroy = qla4xxx_slave_destroy, 152afaf5a2dSDavid Somayajulu 153afaf5a2dSDavid Somayajulu .this_id = -1, 154afaf5a2dSDavid Somayajulu .cmd_per_lun = 3, 155afaf5a2dSDavid Somayajulu .use_clustering = ENABLE_CLUSTERING, 156afaf5a2dSDavid Somayajulu .sg_tablesize = SG_ALL, 157afaf5a2dSDavid Somayajulu 158afaf5a2dSDavid Somayajulu .max_sectors = 0xFFFF, 1597ad633c0SHarish Zunjarrao .shost_attrs = qla4xxx_host_attrs, 16095d31262SVikas Chaudhary .host_reset = qla4xxx_host_reset, 161a355943cSVikas Chaudhary .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 162afaf5a2dSDavid Somayajulu }; 163afaf5a2dSDavid Somayajulu 164afaf5a2dSDavid Somayajulu static struct iscsi_transport qla4xxx_iscsi_transport = { 165afaf5a2dSDavid Somayajulu .owner = THIS_MODULE, 166afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 167b3a271a9SManish Rangankar .caps = CAP_TEXT_NEGO | 168b3a271a9SManish Rangankar CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 169b3a271a9SManish Rangankar CAP_DATADGST | CAP_LOGIN_OFFLOAD | 170b3a271a9SManish Rangankar CAP_MULTI_R2T, 1713128c6c7SMike Christie .attr_is_visible = ql4_attr_is_visible, 172b3a271a9SManish Rangankar .create_session = qla4xxx_session_create, 173b3a271a9SManish Rangankar .destroy_session = qla4xxx_session_destroy, 174b3a271a9SManish Rangankar .start_conn = qla4xxx_conn_start, 175b3a271a9SManish Rangankar .create_conn = qla4xxx_conn_create, 176b3a271a9SManish Rangankar .bind_conn = qla4xxx_conn_bind, 177b3a271a9SManish Rangankar .stop_conn = iscsi_conn_stop, 178b3a271a9SManish Rangankar .destroy_conn = qla4xxx_conn_destroy, 179b3a271a9SManish Rangankar .set_param = iscsi_set_param, 180afaf5a2dSDavid Somayajulu .get_conn_param = qla4xxx_conn_get_param, 181b3a271a9SManish Rangankar .get_session_param = iscsi_session_get_param, 182b3a271a9SManish Rangankar .get_ep_param = qla4xxx_get_ep_param, 183b3a271a9SManish Rangankar .ep_connect = qla4xxx_ep_connect, 184b3a271a9SManish Rangankar .ep_poll = qla4xxx_ep_poll, 185b3a271a9SManish Rangankar .ep_disconnect = qla4xxx_ep_disconnect, 186b3a271a9SManish Rangankar .get_stats = qla4xxx_conn_get_stats, 187b3a271a9SManish Rangankar .send_pdu = iscsi_conn_send_pdu, 188b3a271a9SManish Rangankar .xmit_task = qla4xxx_task_xmit, 189b3a271a9SManish Rangankar .cleanup_task = qla4xxx_task_cleanup, 190b3a271a9SManish Rangankar .alloc_pdu = qla4xxx_alloc_pdu, 191b3a271a9SManish Rangankar 192aa1e93a2SMike Christie .get_host_param = qla4xxx_host_get_param, 193d00efe3fSMike Christie .set_iface_param = qla4xxx_iface_set_param, 194ed1086e0SVikas Chaudhary .get_iface_param = qla4xxx_get_iface_param, 195a355943cSVikas Chaudhary .bsg_request = qla4xxx_bsg_request, 196afaf5a2dSDavid Somayajulu }; 197afaf5a2dSDavid Somayajulu 198afaf5a2dSDavid Somayajulu static struct scsi_transport_template *qla4xxx_scsi_transport; 199afaf5a2dSDavid Somayajulu 200587a1f16SAl Viro static umode_t ql4_attr_is_visible(int param_type, int param) 2013128c6c7SMike Christie { 2023128c6c7SMike Christie switch (param_type) { 203f27fb2efSMike Christie case ISCSI_HOST_PARAM: 204f27fb2efSMike Christie switch (param) { 205f27fb2efSMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 206f27fb2efSMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 207f27fb2efSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 208f27fb2efSMike Christie return S_IRUGO; 209f27fb2efSMike Christie default: 210f27fb2efSMike Christie return 0; 211f27fb2efSMike Christie } 2123128c6c7SMike Christie case ISCSI_PARAM: 2133128c6c7SMike Christie switch (param) { 214590134faSMike Christie case ISCSI_PARAM_PERSISTENT_ADDRESS: 215590134faSMike Christie case ISCSI_PARAM_PERSISTENT_PORT: 2163128c6c7SMike Christie case ISCSI_PARAM_CONN_ADDRESS: 2173128c6c7SMike Christie case ISCSI_PARAM_CONN_PORT: 2181d063c17SMike Christie case ISCSI_PARAM_TARGET_NAME: 2191d063c17SMike Christie case ISCSI_PARAM_TPGT: 2201d063c17SMike Christie case ISCSI_PARAM_TARGET_ALIAS: 221b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_BURST: 222b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_R2T: 223b3a271a9SManish Rangankar case ISCSI_PARAM_FIRST_BURST: 224b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_RECV_DLENGTH: 225b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_XMIT_DLENGTH: 226de37920bSMike Christie case ISCSI_PARAM_IFACE_NAME: 2273128c6c7SMike Christie return S_IRUGO; 2283128c6c7SMike Christie default: 2293128c6c7SMike Christie return 0; 2303128c6c7SMike Christie } 231b78dbba0SMike Christie case ISCSI_NET_PARAM: 232b78dbba0SMike Christie switch (param) { 233b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 234b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 235b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_GW: 236b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 237b78dbba0SMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 238b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 239b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 240b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 241b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 242b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2436ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 2446ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 2456ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 246943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 2472ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 248b78dbba0SMike Christie return S_IRUGO; 249b78dbba0SMike Christie default: 250b78dbba0SMike Christie return 0; 251b78dbba0SMike Christie } 2523128c6c7SMike Christie } 2533128c6c7SMike Christie 2543128c6c7SMike Christie return 0; 2553128c6c7SMike Christie } 2563128c6c7SMike Christie 257ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 258ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 259ed1086e0SVikas Chaudhary int param, char *buf) 260ed1086e0SVikas Chaudhary { 261ed1086e0SVikas Chaudhary struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 262ed1086e0SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 263ed1086e0SVikas Chaudhary int len = -ENOSYS; 264ed1086e0SVikas Chaudhary 265ed1086e0SVikas Chaudhary if (param_type != ISCSI_NET_PARAM) 266ed1086e0SVikas Chaudhary return -ENOSYS; 267ed1086e0SVikas Chaudhary 268ed1086e0SVikas Chaudhary switch (param) { 269ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_ADDR: 270ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 271ed1086e0SVikas Chaudhary break; 272ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_SUBNET: 273ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 274ed1086e0SVikas Chaudhary break; 275ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_GW: 276ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 277ed1086e0SVikas Chaudhary break; 278ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IFACE_ENABLE: 279ed1086e0SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 280ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 281ed1086e0SVikas Chaudhary (ha->ip_config.ipv4_options & 282ed1086e0SVikas Chaudhary IPOPT_IPV4_PROTOCOL_ENABLE) ? 283ed1086e0SVikas Chaudhary "enabled" : "disabled"); 284ed1086e0SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 285ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 286ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_options & 287ed1086e0SVikas Chaudhary IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 288ed1086e0SVikas Chaudhary "enabled" : "disabled"); 289ed1086e0SVikas Chaudhary break; 290ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 291ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 292ed1086e0SVikas Chaudhary (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 293ed1086e0SVikas Chaudhary "dhcp" : "static"); 294ed1086e0SVikas Chaudhary break; 295ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR: 296ed1086e0SVikas Chaudhary if (iface->iface_num == 0) 297ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 298ed1086e0SVikas Chaudhary if (iface->iface_num == 1) 299ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 300ed1086e0SVikas Chaudhary break; 301ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 302ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 303ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr); 304ed1086e0SVikas Chaudhary break; 305ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ROUTER: 306ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 307ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_default_router_addr); 308ed1086e0SVikas Chaudhary break; 309ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 310ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 311ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 312ed1086e0SVikas Chaudhary IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 313ed1086e0SVikas Chaudhary "nd" : "static"); 314ed1086e0SVikas Chaudhary break; 315ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 316ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 317ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 318ed1086e0SVikas Chaudhary IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 319ed1086e0SVikas Chaudhary "auto" : "static"); 320ed1086e0SVikas Chaudhary break; 3216ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 3226ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3236ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3246ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_vlan_tag & 3256ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3266ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3276ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3286ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_vlan_tag & 3296ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3306ac73e8cSVikas Chaudhary break; 3316ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 3326ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3336ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3346ac73e8cSVikas Chaudhary ((ha->ip_config.ipv4_vlan_tag >> 13) & 3356ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3366ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3376ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3386ac73e8cSVikas Chaudhary ((ha->ip_config.ipv6_vlan_tag >> 13) & 3396ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3406ac73e8cSVikas Chaudhary break; 3416ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 3426ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3436ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3446ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_options & 3456ac73e8cSVikas Chaudhary IPOPT_VLAN_TAGGING_ENABLE) ? 3466ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3476ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3486ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3496ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_options & 3506ac73e8cSVikas Chaudhary IPV6_OPT_VLAN_TAGGING_ENABLE) ? 3516ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3526ac73e8cSVikas Chaudhary break; 353943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 354943c157bSVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 355943c157bSVikas Chaudhary break; 3562ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 3572ada7fc5SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3582ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port); 3592ada7fc5SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3602ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port); 3612ada7fc5SVikas Chaudhary break; 362ed1086e0SVikas Chaudhary default: 363ed1086e0SVikas Chaudhary len = -ENOSYS; 364ed1086e0SVikas Chaudhary } 365ed1086e0SVikas Chaudhary 366ed1086e0SVikas Chaudhary return len; 367ed1086e0SVikas Chaudhary } 368ed1086e0SVikas Chaudhary 369b3a271a9SManish Rangankar static struct iscsi_endpoint * 370b3a271a9SManish Rangankar qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 371b3a271a9SManish Rangankar int non_blocking) 372b3a271a9SManish Rangankar { 373b3a271a9SManish Rangankar int ret; 374b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 375b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 376b3a271a9SManish Rangankar struct scsi_qla_host *ha; 377b3a271a9SManish Rangankar struct sockaddr_in *addr; 378b3a271a9SManish Rangankar struct sockaddr_in6 *addr6; 379b3a271a9SManish Rangankar 380b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 381b3a271a9SManish Rangankar if (!shost) { 382b3a271a9SManish Rangankar ret = -ENXIO; 383b3a271a9SManish Rangankar printk(KERN_ERR "%s: shost is NULL\n", 384b3a271a9SManish Rangankar __func__); 385b3a271a9SManish Rangankar return ERR_PTR(ret); 386b3a271a9SManish Rangankar } 387b3a271a9SManish Rangankar 388b3a271a9SManish Rangankar ha = iscsi_host_priv(shost); 389b3a271a9SManish Rangankar 390b3a271a9SManish Rangankar ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 391b3a271a9SManish Rangankar if (!ep) { 392b3a271a9SManish Rangankar ret = -ENOMEM; 393b3a271a9SManish Rangankar return ERR_PTR(ret); 394b3a271a9SManish Rangankar } 395b3a271a9SManish Rangankar 396b3a271a9SManish Rangankar qla_ep = ep->dd_data; 397b3a271a9SManish Rangankar memset(qla_ep, 0, sizeof(struct qla_endpoint)); 398b3a271a9SManish Rangankar if (dst_addr->sa_family == AF_INET) { 399b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 400b3a271a9SManish Rangankar addr = (struct sockaddr_in *)&qla_ep->dst_addr; 401b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 402b3a271a9SManish Rangankar (char *)&addr->sin_addr)); 403b3a271a9SManish Rangankar } else if (dst_addr->sa_family == AF_INET6) { 404b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, 405b3a271a9SManish Rangankar sizeof(struct sockaddr_in6)); 406b3a271a9SManish Rangankar addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 407b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 408b3a271a9SManish Rangankar (char *)&addr6->sin6_addr)); 409b3a271a9SManish Rangankar } 410b3a271a9SManish Rangankar 411b3a271a9SManish Rangankar qla_ep->host = shost; 412b3a271a9SManish Rangankar 413b3a271a9SManish Rangankar return ep; 414b3a271a9SManish Rangankar } 415b3a271a9SManish Rangankar 416b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 417b3a271a9SManish Rangankar { 418b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 419b3a271a9SManish Rangankar struct scsi_qla_host *ha; 420b3a271a9SManish Rangankar int ret = 0; 421b3a271a9SManish Rangankar 422b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 423b3a271a9SManish Rangankar qla_ep = ep->dd_data; 424b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 425b3a271a9SManish Rangankar 42613483730SMike Christie if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 427b3a271a9SManish Rangankar ret = 1; 428b3a271a9SManish Rangankar 429b3a271a9SManish Rangankar return ret; 430b3a271a9SManish Rangankar } 431b3a271a9SManish Rangankar 432b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 433b3a271a9SManish Rangankar { 434b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 435b3a271a9SManish Rangankar iscsi_destroy_endpoint(ep); 436b3a271a9SManish Rangankar } 437b3a271a9SManish Rangankar 438b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 439b3a271a9SManish Rangankar enum iscsi_param param, 440b3a271a9SManish Rangankar char *buf) 441b3a271a9SManish Rangankar { 442b3a271a9SManish Rangankar struct qla_endpoint *qla_ep = ep->dd_data; 443b3a271a9SManish Rangankar struct sockaddr *dst_addr; 444b3a271a9SManish Rangankar 445b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 446b3a271a9SManish Rangankar 447b3a271a9SManish Rangankar switch (param) { 448b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_PORT: 449b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_ADDRESS: 450b3a271a9SManish Rangankar if (!qla_ep) 451b3a271a9SManish Rangankar return -ENOTCONN; 452b3a271a9SManish Rangankar 453b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 454b3a271a9SManish Rangankar if (!dst_addr) 455b3a271a9SManish Rangankar return -ENOTCONN; 456b3a271a9SManish Rangankar 457b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 458b3a271a9SManish Rangankar &qla_ep->dst_addr, param, buf); 459b3a271a9SManish Rangankar default: 460b3a271a9SManish Rangankar return -ENOSYS; 461b3a271a9SManish Rangankar } 462b3a271a9SManish Rangankar } 463b3a271a9SManish Rangankar 464b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 465b3a271a9SManish Rangankar struct iscsi_stats *stats) 466b3a271a9SManish Rangankar { 467b3a271a9SManish Rangankar struct iscsi_session *sess; 468b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 469b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 470b3a271a9SManish Rangankar struct scsi_qla_host *ha; 471b3a271a9SManish Rangankar struct ql_iscsi_stats *ql_iscsi_stats; 472b3a271a9SManish Rangankar int stats_size; 473b3a271a9SManish Rangankar int ret; 474b3a271a9SManish Rangankar dma_addr_t iscsi_stats_dma; 475b3a271a9SManish Rangankar 476b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 477b3a271a9SManish Rangankar 478b3a271a9SManish Rangankar cls_sess = iscsi_conn_to_session(cls_conn); 479b3a271a9SManish Rangankar sess = cls_sess->dd_data; 480b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 481b3a271a9SManish Rangankar ha = ddb_entry->ha; 482b3a271a9SManish Rangankar 483b3a271a9SManish Rangankar stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 484b3a271a9SManish Rangankar /* Allocate memory */ 485b3a271a9SManish Rangankar ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 486b3a271a9SManish Rangankar &iscsi_stats_dma, GFP_KERNEL); 487b3a271a9SManish Rangankar if (!ql_iscsi_stats) { 488b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 489b3a271a9SManish Rangankar "Unable to allocate memory for iscsi stats\n"); 490b3a271a9SManish Rangankar goto exit_get_stats; 491b3a271a9SManish Rangankar } 492b3a271a9SManish Rangankar 493b3a271a9SManish Rangankar ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 494b3a271a9SManish Rangankar iscsi_stats_dma); 495b3a271a9SManish Rangankar if (ret != QLA_SUCCESS) { 496b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 497b3a271a9SManish Rangankar "Unable to retreive iscsi stats\n"); 498b3a271a9SManish Rangankar goto free_stats; 499b3a271a9SManish Rangankar } 500b3a271a9SManish Rangankar 501b3a271a9SManish Rangankar /* octets */ 502b3a271a9SManish Rangankar stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 503b3a271a9SManish Rangankar stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 504b3a271a9SManish Rangankar /* xmit pdus */ 505b3a271a9SManish Rangankar stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 506b3a271a9SManish Rangankar stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 507b3a271a9SManish Rangankar stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 508b3a271a9SManish Rangankar stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 509b3a271a9SManish Rangankar stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 510b3a271a9SManish Rangankar stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 511b3a271a9SManish Rangankar stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 512b3a271a9SManish Rangankar stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 513b3a271a9SManish Rangankar /* recv pdus */ 514b3a271a9SManish Rangankar stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 515b3a271a9SManish Rangankar stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 516b3a271a9SManish Rangankar stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 517b3a271a9SManish Rangankar stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 518b3a271a9SManish Rangankar stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 519b3a271a9SManish Rangankar stats->logoutrsp_pdus = 520b3a271a9SManish Rangankar le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 521b3a271a9SManish Rangankar stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 522b3a271a9SManish Rangankar stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 523b3a271a9SManish Rangankar stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 524b3a271a9SManish Rangankar 525b3a271a9SManish Rangankar free_stats: 526b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 527b3a271a9SManish Rangankar iscsi_stats_dma); 528b3a271a9SManish Rangankar exit_get_stats: 529b3a271a9SManish Rangankar return; 530b3a271a9SManish Rangankar } 531b3a271a9SManish Rangankar 5325c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 5335c656af7SMike Christie { 5345c656af7SMike Christie struct iscsi_cls_session *session; 535b3a271a9SManish Rangankar struct iscsi_session *sess; 536b3a271a9SManish Rangankar unsigned long flags; 537b3a271a9SManish Rangankar enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 5385c656af7SMike Christie 5395c656af7SMike Christie session = starget_to_session(scsi_target(sc->device)); 540b3a271a9SManish Rangankar sess = session->dd_data; 5415c656af7SMike Christie 542b3a271a9SManish Rangankar spin_lock_irqsave(&session->lock, flags); 543b3a271a9SManish Rangankar if (session->state == ISCSI_SESSION_FAILED) 544b3a271a9SManish Rangankar ret = BLK_EH_RESET_TIMER; 545b3a271a9SManish Rangankar spin_unlock_irqrestore(&session->lock, flags); 5465c656af7SMike Christie 547b3a271a9SManish Rangankar return ret; 548568d303bSMike Christie } 549afaf5a2dSDavid Somayajulu 550aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 551aa1e93a2SMike Christie enum iscsi_host_param param, char *buf) 552aa1e93a2SMike Christie { 553aa1e93a2SMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 554aa1e93a2SMike Christie int len; 555aa1e93a2SMike Christie 556aa1e93a2SMike Christie switch (param) { 557aa1e93a2SMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 5587ffc49a6SMichael Chan len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 559aa1e93a2SMike Christie break; 56022236961SMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 5612bab08fcSVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 56222236961SMike Christie break; 5638ad5781aSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 56422236961SMike Christie len = sprintf(buf, "%s\n", ha->name_string); 5658ad5781aSMike Christie break; 566aa1e93a2SMike Christie default: 567aa1e93a2SMike Christie return -ENOSYS; 568aa1e93a2SMike Christie } 569aa1e93a2SMike Christie 570aa1e93a2SMike Christie return len; 571aa1e93a2SMike Christie } 572aa1e93a2SMike Christie 573ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 574ed1086e0SVikas Chaudhary { 575ed1086e0SVikas Chaudhary if (ha->iface_ipv4) 576ed1086e0SVikas Chaudhary return; 577ed1086e0SVikas Chaudhary 578ed1086e0SVikas Chaudhary /* IPv4 */ 579ed1086e0SVikas Chaudhary ha->iface_ipv4 = iscsi_create_iface(ha->host, 580ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 581ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV4, 0, 0); 582ed1086e0SVikas Chaudhary if (!ha->iface_ipv4) 583ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 584ed1086e0SVikas Chaudhary "iface0.\n"); 585ed1086e0SVikas Chaudhary } 586ed1086e0SVikas Chaudhary 587ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 588ed1086e0SVikas Chaudhary { 589ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 590ed1086e0SVikas Chaudhary /* IPv6 iface-0 */ 591ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 592ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 593ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 0, 594ed1086e0SVikas Chaudhary 0); 595ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 596ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 597ed1086e0SVikas Chaudhary "iface0.\n"); 598ed1086e0SVikas Chaudhary 599ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 600ed1086e0SVikas Chaudhary /* IPv6 iface-1 */ 601ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 602ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 603ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 1, 604ed1086e0SVikas Chaudhary 0); 605ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 606ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 607ed1086e0SVikas Chaudhary "iface1.\n"); 608ed1086e0SVikas Chaudhary } 609ed1086e0SVikas Chaudhary 610ed1086e0SVikas Chaudhary static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 611ed1086e0SVikas Chaudhary { 612ed1086e0SVikas Chaudhary if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 613ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 614ed1086e0SVikas Chaudhary 615ed1086e0SVikas Chaudhary if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 616ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 617ed1086e0SVikas Chaudhary } 618ed1086e0SVikas Chaudhary 619ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 620ed1086e0SVikas Chaudhary { 621ed1086e0SVikas Chaudhary if (ha->iface_ipv4) { 622ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv4); 623ed1086e0SVikas Chaudhary ha->iface_ipv4 = NULL; 624ed1086e0SVikas Chaudhary } 625ed1086e0SVikas Chaudhary } 626ed1086e0SVikas Chaudhary 627ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 628ed1086e0SVikas Chaudhary { 629ed1086e0SVikas Chaudhary if (ha->iface_ipv6_0) { 630ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_0); 631ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = NULL; 632ed1086e0SVikas Chaudhary } 633ed1086e0SVikas Chaudhary if (ha->iface_ipv6_1) { 634ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_1); 635ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = NULL; 636ed1086e0SVikas Chaudhary } 637ed1086e0SVikas Chaudhary } 638ed1086e0SVikas Chaudhary 639ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 640ed1086e0SVikas Chaudhary { 641ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 642ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 643ed1086e0SVikas Chaudhary } 644ed1086e0SVikas Chaudhary 645d00efe3fSMike Christie static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 646d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 647d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 648d00efe3fSMike Christie { 649d00efe3fSMike Christie /* 650d00efe3fSMike Christie * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 651d00efe3fSMike Christie * iface_num 1 is valid only for IPv6 Addr. 652d00efe3fSMike Christie */ 653d00efe3fSMike Christie switch (iface_param->param) { 654d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 655d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 656d00efe3fSMike Christie /* IPv6 Addr 1 */ 657d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 658d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr1)); 659d00efe3fSMike Christie else 660d00efe3fSMike Christie /* IPv6 Addr 0 */ 661d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 662d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr0)); 663d00efe3fSMike Christie break; 664d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 665d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 666d00efe3fSMike Christie break; 667d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 668d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_if_id)); 669d00efe3fSMike Christie break; 670d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 671d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 672d00efe3fSMike Christie break; 673d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 674d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 675d00efe3fSMike Christie break; 676d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 677d00efe3fSMike Christie /* Autocfg applies to even interface */ 678d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 679d00efe3fSMike Christie break; 680d00efe3fSMike Christie 681d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 682d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= 683d00efe3fSMike Christie cpu_to_le16( 684d00efe3fSMike Christie ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 685d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 686d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= 687d00efe3fSMike Christie cpu_to_le16( 688d00efe3fSMike Christie IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 689d00efe3fSMike Christie else 690d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 691d00efe3fSMike Christie "IPv6 addr\n"); 692d00efe3fSMike Christie break; 693d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 694d00efe3fSMike Christie /* Autocfg applies to even interface */ 695d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 696d00efe3fSMike Christie break; 697d00efe3fSMike Christie 698d00efe3fSMike Christie if (iface_param->value[0] == 699d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 700d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 701d00efe3fSMike Christie IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 702d00efe3fSMike Christie else if (iface_param->value[0] == 703d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 704d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 705d00efe3fSMike Christie ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 706d00efe3fSMike Christie else 707d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 708d00efe3fSMike Christie "IPv6 linklocal addr\n"); 709d00efe3fSMike Christie break; 710d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 711d00efe3fSMike Christie /* Autocfg applies to even interface */ 712d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 713d00efe3fSMike Christie break; 714d00efe3fSMike Christie 715d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 716d00efe3fSMike Christie memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 717d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 718d00efe3fSMike Christie break; 719d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 720ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 721d00efe3fSMike Christie init_fw_cb->ipv6_opts |= 722d00efe3fSMike Christie cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 723ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 724ed1086e0SVikas Chaudhary } else { 725d00efe3fSMike Christie init_fw_cb->ipv6_opts &= 726d00efe3fSMike Christie cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 727d00efe3fSMike Christie 0xFFFF); 728ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 729ed1086e0SVikas Chaudhary } 730d00efe3fSMike Christie break; 7312d63673bSMike Christie case ISCSI_NET_PARAM_VLAN_TAG: 732d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 733d00efe3fSMike Christie break; 7346ac73e8cSVikas Chaudhary init_fw_cb->ipv6_vlan_tag = 7356ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 7366ac73e8cSVikas Chaudhary break; 7376ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 7386ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 7396ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts |= 7406ac73e8cSVikas Chaudhary cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 7416ac73e8cSVikas Chaudhary else 7426ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts &= 7436ac73e8cSVikas Chaudhary cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 744d00efe3fSMike Christie break; 745943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 746943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 747943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 748943c157bSVikas Chaudhary break; 7492ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 7502ada7fc5SVikas Chaudhary /* Autocfg applies to even interface */ 7512ada7fc5SVikas Chaudhary if (iface_param->iface_num & 0x1) 7522ada7fc5SVikas Chaudhary break; 7532ada7fc5SVikas Chaudhary 7542ada7fc5SVikas Chaudhary init_fw_cb->ipv6_port = 7552ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 7562ada7fc5SVikas Chaudhary break; 757d00efe3fSMike Christie default: 758d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 759d00efe3fSMike Christie iface_param->param); 760d00efe3fSMike Christie break; 761d00efe3fSMike Christie } 762d00efe3fSMike Christie } 763d00efe3fSMike Christie 764d00efe3fSMike Christie static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 765d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 766d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 767d00efe3fSMike Christie { 768d00efe3fSMike Christie switch (iface_param->param) { 769d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 770d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_addr, iface_param->value, 771d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_addr)); 772d00efe3fSMike Christie break; 773d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 774d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 775d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_subnet)); 776d00efe3fSMike Christie break; 777d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_GW: 778d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 779d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_gw_addr)); 780d00efe3fSMike Christie break; 781d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 782d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 783d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts |= 784d00efe3fSMike Christie cpu_to_le16(TCPOPT_DHCP_ENABLE); 785d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 786d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts &= 787d00efe3fSMike Christie cpu_to_le16(~TCPOPT_DHCP_ENABLE); 788d00efe3fSMike Christie else 789d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 790d00efe3fSMike Christie break; 791d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 792ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 793d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts |= 7942bab08fcSVikas Chaudhary cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 795ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 796ed1086e0SVikas Chaudhary } else { 797d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts &= 7982bab08fcSVikas Chaudhary cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 799d00efe3fSMike Christie 0xFFFF); 800ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 801ed1086e0SVikas Chaudhary } 802d00efe3fSMike Christie break; 8032d63673bSMike Christie case ISCSI_NET_PARAM_VLAN_TAG: 804d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 805d00efe3fSMike Christie break; 8066ac73e8cSVikas Chaudhary init_fw_cb->ipv4_vlan_tag = 8076ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 8086ac73e8cSVikas Chaudhary break; 8096ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 8106ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 8116ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts |= 8126ac73e8cSVikas Chaudhary cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 8136ac73e8cSVikas Chaudhary else 8146ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts &= 8156ac73e8cSVikas Chaudhary cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 816d00efe3fSMike Christie break; 817943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 818943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 819943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 820943c157bSVikas Chaudhary break; 8212ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 8222ada7fc5SVikas Chaudhary init_fw_cb->ipv4_port = 8232ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 8242ada7fc5SVikas Chaudhary break; 825d00efe3fSMike Christie default: 826d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 827d00efe3fSMike Christie iface_param->param); 828d00efe3fSMike Christie break; 829d00efe3fSMike Christie } 830d00efe3fSMike Christie } 831d00efe3fSMike Christie 832d00efe3fSMike Christie static void 833d00efe3fSMike Christie qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 834d00efe3fSMike Christie { 835d00efe3fSMike Christie struct addr_ctrl_blk_def *acb; 836d00efe3fSMike Christie acb = (struct addr_ctrl_blk_def *)init_fw_cb; 837d00efe3fSMike Christie memset(acb->reserved1, 0, sizeof(acb->reserved1)); 838d00efe3fSMike Christie memset(acb->reserved2, 0, sizeof(acb->reserved2)); 839d00efe3fSMike Christie memset(acb->reserved3, 0, sizeof(acb->reserved3)); 840d00efe3fSMike Christie memset(acb->reserved4, 0, sizeof(acb->reserved4)); 841d00efe3fSMike Christie memset(acb->reserved5, 0, sizeof(acb->reserved5)); 842d00efe3fSMike Christie memset(acb->reserved6, 0, sizeof(acb->reserved6)); 843d00efe3fSMike Christie memset(acb->reserved7, 0, sizeof(acb->reserved7)); 844d00efe3fSMike Christie memset(acb->reserved8, 0, sizeof(acb->reserved8)); 845d00efe3fSMike Christie memset(acb->reserved9, 0, sizeof(acb->reserved9)); 846d00efe3fSMike Christie memset(acb->reserved10, 0, sizeof(acb->reserved10)); 847d00efe3fSMike Christie memset(acb->reserved11, 0, sizeof(acb->reserved11)); 848d00efe3fSMike Christie memset(acb->reserved12, 0, sizeof(acb->reserved12)); 849d00efe3fSMike Christie memset(acb->reserved13, 0, sizeof(acb->reserved13)); 850d00efe3fSMike Christie memset(acb->reserved14, 0, sizeof(acb->reserved14)); 851d00efe3fSMike Christie memset(acb->reserved15, 0, sizeof(acb->reserved15)); 852d00efe3fSMike Christie } 853d00efe3fSMike Christie 854d00efe3fSMike Christie static int 85500c31889SMike Christie qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 856d00efe3fSMike Christie { 857d00efe3fSMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 858d00efe3fSMike Christie int rval = 0; 859d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param = NULL; 860d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb = NULL; 861d00efe3fSMike Christie dma_addr_t init_fw_cb_dma; 862d00efe3fSMike Christie uint32_t mbox_cmd[MBOX_REG_COUNT]; 863d00efe3fSMike Christie uint32_t mbox_sts[MBOX_REG_COUNT]; 86400c31889SMike Christie uint32_t rem = len; 86500c31889SMike Christie struct nlattr *attr; 866d00efe3fSMike Christie 867d00efe3fSMike Christie init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 868d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 869d00efe3fSMike Christie &init_fw_cb_dma, GFP_KERNEL); 870d00efe3fSMike Christie if (!init_fw_cb) { 871d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 872d00efe3fSMike Christie __func__); 873d00efe3fSMike Christie return -ENOMEM; 874d00efe3fSMike Christie } 875d00efe3fSMike Christie 876d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 877d00efe3fSMike Christie memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 878d00efe3fSMike Christie memset(&mbox_sts, 0, sizeof(mbox_sts)); 879d00efe3fSMike Christie 880d00efe3fSMike Christie if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 881d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 882d00efe3fSMike Christie rval = -EIO; 883d00efe3fSMike Christie goto exit_init_fw_cb; 884d00efe3fSMike Christie } 885d00efe3fSMike Christie 88600c31889SMike Christie nla_for_each_attr(attr, data, len, rem) { 88700c31889SMike Christie iface_param = nla_data(attr); 888d00efe3fSMike Christie 889d00efe3fSMike Christie if (iface_param->param_type != ISCSI_NET_PARAM) 890d00efe3fSMike Christie continue; 891d00efe3fSMike Christie 892d00efe3fSMike Christie switch (iface_param->iface_type) { 893d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV4: 894d00efe3fSMike Christie switch (iface_param->iface_num) { 895d00efe3fSMike Christie case 0: 896d00efe3fSMike Christie qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 897d00efe3fSMike Christie break; 898d00efe3fSMike Christie default: 899d00efe3fSMike Christie /* Cannot have more than one IPv4 interface */ 900d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 901d00efe3fSMike Christie "number = %d\n", 902d00efe3fSMike Christie iface_param->iface_num); 903d00efe3fSMike Christie break; 904d00efe3fSMike Christie } 905d00efe3fSMike Christie break; 906d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV6: 907d00efe3fSMike Christie switch (iface_param->iface_num) { 908d00efe3fSMike Christie case 0: 909d00efe3fSMike Christie case 1: 910d00efe3fSMike Christie qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 911d00efe3fSMike Christie break; 912d00efe3fSMike Christie default: 913d00efe3fSMike Christie /* Cannot have more than two IPv6 interface */ 914d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 915d00efe3fSMike Christie "number = %d\n", 916d00efe3fSMike Christie iface_param->iface_num); 917d00efe3fSMike Christie break; 918d00efe3fSMike Christie } 919d00efe3fSMike Christie break; 920d00efe3fSMike Christie default: 921d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 922d00efe3fSMike Christie break; 923d00efe3fSMike Christie } 924d00efe3fSMike Christie } 925d00efe3fSMike Christie 926d00efe3fSMike Christie init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 927d00efe3fSMike Christie 928d00efe3fSMike Christie rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 929d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 930d00efe3fSMike Christie FLASH_OPT_RMW_COMMIT); 931d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 932d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 933d00efe3fSMike Christie __func__); 934d00efe3fSMike Christie rval = -EIO; 935d00efe3fSMike Christie goto exit_init_fw_cb; 936d00efe3fSMike Christie } 937d00efe3fSMike Christie 938d00efe3fSMike Christie qla4xxx_disable_acb(ha); 939d00efe3fSMike Christie 940d00efe3fSMike Christie qla4xxx_initcb_to_acb(init_fw_cb); 941d00efe3fSMike Christie 942d00efe3fSMike Christie rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 943d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 944d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 945d00efe3fSMike Christie __func__); 946d00efe3fSMike Christie rval = -EIO; 947d00efe3fSMike Christie goto exit_init_fw_cb; 948d00efe3fSMike Christie } 949d00efe3fSMike Christie 950d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 951d00efe3fSMike Christie qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 952d00efe3fSMike Christie init_fw_cb_dma); 953d00efe3fSMike Christie 954d00efe3fSMike Christie exit_init_fw_cb: 955d00efe3fSMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 956d00efe3fSMike Christie init_fw_cb, init_fw_cb_dma); 957d00efe3fSMike Christie 958d00efe3fSMike Christie return rval; 959d00efe3fSMike Christie } 960d00efe3fSMike Christie 961b3a271a9SManish Rangankar static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 962afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 963afaf5a2dSDavid Somayajulu { 964b3a271a9SManish Rangankar struct iscsi_conn *conn; 965b3a271a9SManish Rangankar struct qla_conn *qla_conn; 966b3a271a9SManish Rangankar struct sockaddr *dst_addr; 967b3a271a9SManish Rangankar int len = 0; 968afaf5a2dSDavid Somayajulu 969b3a271a9SManish Rangankar conn = cls_conn->dd_data; 970b3a271a9SManish Rangankar qla_conn = conn->dd_data; 971b3a271a9SManish Rangankar dst_addr = &qla_conn->qla_ep->dst_addr; 972afaf5a2dSDavid Somayajulu 973afaf5a2dSDavid Somayajulu switch (param) { 974afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_PORT: 975afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_ADDRESS: 976b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 977b3a271a9SManish Rangankar dst_addr, param, buf); 978afaf5a2dSDavid Somayajulu default: 979b3a271a9SManish Rangankar return iscsi_conn_get_param(cls_conn, param, buf); 980afaf5a2dSDavid Somayajulu } 981afaf5a2dSDavid Somayajulu 982afaf5a2dSDavid Somayajulu return len; 983b3a271a9SManish Rangankar 984afaf5a2dSDavid Somayajulu } 985afaf5a2dSDavid Somayajulu 98613483730SMike Christie int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 98713483730SMike Christie { 98813483730SMike Christie uint32_t mbx_sts = 0; 98913483730SMike Christie uint16_t tmp_ddb_index; 99013483730SMike Christie int ret; 99113483730SMike Christie 99213483730SMike Christie get_ddb_index: 99313483730SMike Christie tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 99413483730SMike Christie 99513483730SMike Christie if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 99613483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 99713483730SMike Christie "Free DDB index not available\n")); 99813483730SMike Christie ret = QLA_ERROR; 99913483730SMike Christie goto exit_get_ddb_index; 100013483730SMike Christie } 100113483730SMike Christie 100213483730SMike Christie if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 100313483730SMike Christie goto get_ddb_index; 100413483730SMike Christie 100513483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 100613483730SMike Christie "Found a free DDB index at %d\n", tmp_ddb_index)); 100713483730SMike Christie ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 100813483730SMike Christie if (ret == QLA_ERROR) { 100913483730SMike Christie if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 101013483730SMike Christie ql4_printk(KERN_INFO, ha, 101113483730SMike Christie "DDB index = %d not available trying next\n", 101213483730SMike Christie tmp_ddb_index); 101313483730SMike Christie goto get_ddb_index; 101413483730SMike Christie } 101513483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 101613483730SMike Christie "Free FW DDB not available\n")); 101713483730SMike Christie } 101813483730SMike Christie 101913483730SMike Christie *ddb_index = tmp_ddb_index; 102013483730SMike Christie 102113483730SMike Christie exit_get_ddb_index: 102213483730SMike Christie return ret; 102313483730SMike Christie } 102413483730SMike Christie 102513483730SMike Christie static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 102613483730SMike Christie struct ddb_entry *ddb_entry, 102713483730SMike Christie char *existing_ipaddr, 102813483730SMike Christie char *user_ipaddr) 102913483730SMike Christie { 103013483730SMike Christie uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 103113483730SMike Christie char formatted_ipaddr[DDB_IPADDR_LEN]; 103213483730SMike Christie int status = QLA_SUCCESS, ret = 0; 103313483730SMike Christie 103413483730SMike Christie if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 103513483730SMike Christie ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 103613483730SMike Christie '\0', NULL); 103713483730SMike Christie if (ret == 0) { 103813483730SMike Christie status = QLA_ERROR; 103913483730SMike Christie goto out_match; 104013483730SMike Christie } 104113483730SMike Christie ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 104213483730SMike Christie } else { 104313483730SMike Christie ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 104413483730SMike Christie '\0', NULL); 104513483730SMike Christie if (ret == 0) { 104613483730SMike Christie status = QLA_ERROR; 104713483730SMike Christie goto out_match; 104813483730SMike Christie } 104913483730SMike Christie ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 105013483730SMike Christie } 105113483730SMike Christie 105213483730SMike Christie if (strcmp(existing_ipaddr, formatted_ipaddr)) 105313483730SMike Christie status = QLA_ERROR; 105413483730SMike Christie 105513483730SMike Christie out_match: 105613483730SMike Christie return status; 105713483730SMike Christie } 105813483730SMike Christie 105913483730SMike Christie static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 106013483730SMike Christie struct iscsi_cls_conn *cls_conn) 106113483730SMike Christie { 106213483730SMike Christie int idx = 0, max_ddbs, rval; 106313483730SMike Christie struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 106413483730SMike Christie struct iscsi_session *sess, *existing_sess; 106513483730SMike Christie struct iscsi_conn *conn, *existing_conn; 106613483730SMike Christie struct ddb_entry *ddb_entry; 106713483730SMike Christie 106813483730SMike Christie sess = cls_sess->dd_data; 106913483730SMike Christie conn = cls_conn->dd_data; 107013483730SMike Christie 107113483730SMike Christie if (sess->targetname == NULL || 107213483730SMike Christie conn->persistent_address == NULL || 107313483730SMike Christie conn->persistent_port == 0) 107413483730SMike Christie return QLA_ERROR; 107513483730SMike Christie 107613483730SMike Christie max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 107713483730SMike Christie MAX_DEV_DB_ENTRIES; 107813483730SMike Christie 107913483730SMike Christie for (idx = 0; idx < max_ddbs; idx++) { 108013483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 108113483730SMike Christie if (ddb_entry == NULL) 108213483730SMike Christie continue; 108313483730SMike Christie 108413483730SMike Christie if (ddb_entry->ddb_type != FLASH_DDB) 108513483730SMike Christie continue; 108613483730SMike Christie 108713483730SMike Christie existing_sess = ddb_entry->sess->dd_data; 108813483730SMike Christie existing_conn = ddb_entry->conn->dd_data; 108913483730SMike Christie 109013483730SMike Christie if (existing_sess->targetname == NULL || 109113483730SMike Christie existing_conn->persistent_address == NULL || 109213483730SMike Christie existing_conn->persistent_port == 0) 109313483730SMike Christie continue; 109413483730SMike Christie 109513483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 109613483730SMike Christie "IQN = %s User IQN = %s\n", 109713483730SMike Christie existing_sess->targetname, 109813483730SMike Christie sess->targetname)); 109913483730SMike Christie 110013483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 110113483730SMike Christie "IP = %s User IP = %s\n", 110213483730SMike Christie existing_conn->persistent_address, 110313483730SMike Christie conn->persistent_address)); 110413483730SMike Christie 110513483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 110613483730SMike Christie "Port = %d User Port = %d\n", 110713483730SMike Christie existing_conn->persistent_port, 110813483730SMike Christie conn->persistent_port)); 110913483730SMike Christie 111013483730SMike Christie if (strcmp(existing_sess->targetname, sess->targetname)) 111113483730SMike Christie continue; 111213483730SMike Christie rval = qla4xxx_match_ipaddress(ha, ddb_entry, 111313483730SMike Christie existing_conn->persistent_address, 111413483730SMike Christie conn->persistent_address); 111513483730SMike Christie if (rval == QLA_ERROR) 111613483730SMike Christie continue; 111713483730SMike Christie if (existing_conn->persistent_port != conn->persistent_port) 111813483730SMike Christie continue; 111913483730SMike Christie break; 112013483730SMike Christie } 112113483730SMike Christie 112213483730SMike Christie if (idx == max_ddbs) 112313483730SMike Christie return QLA_ERROR; 112413483730SMike Christie 112513483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 112613483730SMike Christie "Match found in fwdb sessions\n")); 112713483730SMike Christie return QLA_SUCCESS; 112813483730SMike Christie } 112913483730SMike Christie 1130b3a271a9SManish Rangankar static struct iscsi_cls_session * 1131b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, 1132b3a271a9SManish Rangankar uint16_t cmds_max, uint16_t qdepth, 1133b3a271a9SManish Rangankar uint32_t initial_cmdsn) 1134b3a271a9SManish Rangankar { 1135b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1136b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1137b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 1138b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 113913483730SMike Christie uint16_t ddb_index; 1140b3a271a9SManish Rangankar struct iscsi_session *sess; 1141b3a271a9SManish Rangankar struct sockaddr *dst_addr; 1142b3a271a9SManish Rangankar int ret; 1143b3a271a9SManish Rangankar 1144b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1145b3a271a9SManish Rangankar if (!ep) { 1146b3a271a9SManish Rangankar printk(KERN_ERR "qla4xxx: missing ep.\n"); 1147b3a271a9SManish Rangankar return NULL; 1148b3a271a9SManish Rangankar } 1149b3a271a9SManish Rangankar 1150b3a271a9SManish Rangankar qla_ep = ep->dd_data; 1151b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1152b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 1153736cf369SManish Rangankar 115413483730SMike Christie ret = qla4xxx_get_ddb_index(ha, &ddb_index); 115513483730SMike Christie if (ret == QLA_ERROR) 1156b3a271a9SManish Rangankar return NULL; 1157b3a271a9SManish Rangankar 1158b3a271a9SManish Rangankar cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 1159b3a271a9SManish Rangankar cmds_max, sizeof(struct ddb_entry), 1160b3a271a9SManish Rangankar sizeof(struct ql4_task_data), 1161b3a271a9SManish Rangankar initial_cmdsn, ddb_index); 1162b3a271a9SManish Rangankar if (!cls_sess) 1163b3a271a9SManish Rangankar return NULL; 1164b3a271a9SManish Rangankar 1165b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1166b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1167b3a271a9SManish Rangankar ddb_entry->fw_ddb_index = ddb_index; 1168b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 1169b3a271a9SManish Rangankar ddb_entry->ha = ha; 1170b3a271a9SManish Rangankar ddb_entry->sess = cls_sess; 117113483730SMike Christie ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 117213483730SMike Christie ddb_entry->ddb_change = qla4xxx_ddb_change; 1173b3a271a9SManish Rangankar cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 1174b3a271a9SManish Rangankar ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1175b3a271a9SManish Rangankar ha->tot_ddbs++; 1176b3a271a9SManish Rangankar 1177b3a271a9SManish Rangankar return cls_sess; 1178b3a271a9SManish Rangankar } 1179b3a271a9SManish Rangankar 1180b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 1181b3a271a9SManish Rangankar { 1182b3a271a9SManish Rangankar struct iscsi_session *sess; 1183b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1184b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1185b3a271a9SManish Rangankar unsigned long flags; 1186b3a271a9SManish Rangankar 1187b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1188b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1189b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1190b3a271a9SManish Rangankar ha = ddb_entry->ha; 1191b3a271a9SManish Rangankar 1192736cf369SManish Rangankar qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 1193736cf369SManish Rangankar 1194b3a271a9SManish Rangankar spin_lock_irqsave(&ha->hardware_lock, flags); 1195b3a271a9SManish Rangankar qla4xxx_free_ddb(ha, ddb_entry); 1196b3a271a9SManish Rangankar spin_unlock_irqrestore(&ha->hardware_lock, flags); 1197b3a271a9SManish Rangankar iscsi_session_teardown(cls_sess); 1198b3a271a9SManish Rangankar } 1199b3a271a9SManish Rangankar 1200b3a271a9SManish Rangankar static struct iscsi_cls_conn * 1201b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 1202b3a271a9SManish Rangankar { 1203b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1204b3a271a9SManish Rangankar struct iscsi_session *sess; 1205b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1206b3a271a9SManish Rangankar 1207b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1208b3a271a9SManish Rangankar cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 1209b3a271a9SManish Rangankar conn_idx); 1210ff1d0319SMike Christie if (!cls_conn) 1211ff1d0319SMike Christie return NULL; 1212ff1d0319SMike Christie 1213b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1214b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1215b3a271a9SManish Rangankar ddb_entry->conn = cls_conn; 1216b3a271a9SManish Rangankar 1217b3a271a9SManish Rangankar return cls_conn; 1218b3a271a9SManish Rangankar } 1219b3a271a9SManish Rangankar 1220b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 1221b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 1222b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading) 1223b3a271a9SManish Rangankar { 1224b3a271a9SManish Rangankar struct iscsi_conn *conn; 1225b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1226b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 1227b3a271a9SManish Rangankar 1228b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1229b3a271a9SManish Rangankar 1230b3a271a9SManish Rangankar if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 1231b3a271a9SManish Rangankar return -EINVAL; 1232b3a271a9SManish Rangankar ep = iscsi_lookup_endpoint(transport_fd); 1233b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1234b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1235b3a271a9SManish Rangankar qla_conn->qla_ep = ep->dd_data; 1236b3a271a9SManish Rangankar return 0; 1237b3a271a9SManish Rangankar } 1238b3a271a9SManish Rangankar 1239b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 1240b3a271a9SManish Rangankar { 1241b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1242b3a271a9SManish Rangankar struct iscsi_session *sess; 1243b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1244b3a271a9SManish Rangankar struct scsi_qla_host *ha; 124513483730SMike Christie struct dev_db_entry *fw_ddb_entry = NULL; 1246b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1247b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 1248b3a271a9SManish Rangankar int ret = 0; 1249b3a271a9SManish Rangankar int status = QLA_SUCCESS; 1250b3a271a9SManish Rangankar 1251b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1252b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1253b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1254b3a271a9SManish Rangankar ha = ddb_entry->ha; 1255b3a271a9SManish Rangankar 125613483730SMike Christie /* Check if we have matching FW DDB, if yes then do not 125713483730SMike Christie * login to this target. This could cause target to logout previous 125813483730SMike Christie * connection 125913483730SMike Christie */ 126013483730SMike Christie ret = qla4xxx_match_fwdb_session(ha, cls_conn); 126113483730SMike Christie if (ret == QLA_SUCCESS) { 126213483730SMike Christie ql4_printk(KERN_INFO, ha, 126313483730SMike Christie "Session already exist in FW.\n"); 126413483730SMike Christie ret = -EEXIST; 126513483730SMike Christie goto exit_conn_start; 126613483730SMike Christie } 126713483730SMike Christie 1268b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1269b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1270b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1271b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1272b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 127313483730SMike Christie ret = -ENOMEM; 127413483730SMike Christie goto exit_conn_start; 1275b3a271a9SManish Rangankar } 1276b3a271a9SManish Rangankar 1277b3a271a9SManish Rangankar ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 1278b3a271a9SManish Rangankar if (ret) { 1279b3a271a9SManish Rangankar /* If iscsid is stopped and started then no need to do 1280b3a271a9SManish Rangankar * set param again since ddb state will be already 1281b3a271a9SManish Rangankar * active and FW does not allow set ddb to an 1282b3a271a9SManish Rangankar * active session. 1283b3a271a9SManish Rangankar */ 1284b3a271a9SManish Rangankar if (mbx_sts) 1285b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == 1286f922da79SManish Rangankar DDB_DS_SESSION_ACTIVE) { 128713483730SMike Christie ddb_entry->unblock_sess(ddb_entry->sess); 1288b3a271a9SManish Rangankar goto exit_set_param; 1289f922da79SManish Rangankar } 1290b3a271a9SManish Rangankar 1291b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 1292b3a271a9SManish Rangankar __func__, ddb_entry->fw_ddb_index); 1293b3a271a9SManish Rangankar goto exit_conn_start; 1294b3a271a9SManish Rangankar } 1295b3a271a9SManish Rangankar 1296b3a271a9SManish Rangankar status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1297b3a271a9SManish Rangankar if (status == QLA_ERROR) { 12980e7e8501SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 12990e7e8501SManish Rangankar sess->targetname); 1300b3a271a9SManish Rangankar ret = -EINVAL; 1301b3a271a9SManish Rangankar goto exit_conn_start; 1302b3a271a9SManish Rangankar } 1303b3a271a9SManish Rangankar 130498270ab4SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 1305b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1306b3a271a9SManish Rangankar 130798270ab4SManish Rangankar DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 130898270ab4SManish Rangankar ddb_entry->fw_ddb_device_state)); 130998270ab4SManish Rangankar 1310b3a271a9SManish Rangankar exit_set_param: 1311b3a271a9SManish Rangankar ret = 0; 1312b3a271a9SManish Rangankar 1313b3a271a9SManish Rangankar exit_conn_start: 131413483730SMike Christie if (fw_ddb_entry) 1315b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1316b3a271a9SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 1317b3a271a9SManish Rangankar return ret; 1318b3a271a9SManish Rangankar } 1319b3a271a9SManish Rangankar 1320b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 1321b3a271a9SManish Rangankar { 1322b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1323b3a271a9SManish Rangankar struct iscsi_session *sess; 1324b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1325b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1326b3a271a9SManish Rangankar int options; 1327b3a271a9SManish Rangankar 1328b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1329b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1330b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1331b3a271a9SManish Rangankar ha = ddb_entry->ha; 1332b3a271a9SManish Rangankar 1333b3a271a9SManish Rangankar options = LOGOUT_OPTION_CLOSE_SESSION; 1334b3a271a9SManish Rangankar if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 1335b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 1336b3a271a9SManish Rangankar } 1337b3a271a9SManish Rangankar 1338b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata) 1339b3a271a9SManish Rangankar { 1340b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1341b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1342b3a271a9SManish Rangankar struct passthru_status *sts; 1343b3a271a9SManish Rangankar struct iscsi_task *task; 1344b3a271a9SManish Rangankar struct iscsi_hdr *hdr; 1345b3a271a9SManish Rangankar uint8_t *data; 1346b3a271a9SManish Rangankar uint32_t data_len; 1347b3a271a9SManish Rangankar struct iscsi_conn *conn; 1348b3a271a9SManish Rangankar int hdr_len; 1349b3a271a9SManish Rangankar itt_t itt; 1350b3a271a9SManish Rangankar 1351b3a271a9SManish Rangankar task_data = container_of(wdata, struct ql4_task_data, task_work); 1352b3a271a9SManish Rangankar ha = task_data->ha; 1353b3a271a9SManish Rangankar task = task_data->task; 1354b3a271a9SManish Rangankar sts = &task_data->sts; 1355b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1356b3a271a9SManish Rangankar 1357b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Status returned\n")); 1358b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(sts, 64)); 1359b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Response buffer")); 1360b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 1361b3a271a9SManish Rangankar 1362b3a271a9SManish Rangankar conn = task->conn; 1363b3a271a9SManish Rangankar 1364b3a271a9SManish Rangankar switch (sts->completionStatus) { 1365b3a271a9SManish Rangankar case PASSTHRU_STATUS_COMPLETE: 1366b3a271a9SManish Rangankar hdr = (struct iscsi_hdr *)task_data->resp_buffer; 1367b3a271a9SManish Rangankar /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 1368b3a271a9SManish Rangankar itt = sts->handle; 1369b3a271a9SManish Rangankar hdr->itt = itt; 1370b3a271a9SManish Rangankar data = task_data->resp_buffer + hdr_len; 1371b3a271a9SManish Rangankar data_len = task_data->resp_len - hdr_len; 1372b3a271a9SManish Rangankar iscsi_complete_pdu(conn, hdr, data, data_len); 1373b3a271a9SManish Rangankar break; 1374b3a271a9SManish Rangankar default: 1375b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 1376b3a271a9SManish Rangankar sts->completionStatus); 1377b3a271a9SManish Rangankar break; 1378b3a271a9SManish Rangankar } 1379b3a271a9SManish Rangankar return; 1380b3a271a9SManish Rangankar } 1381b3a271a9SManish Rangankar 1382b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 1383b3a271a9SManish Rangankar { 1384b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1385b3a271a9SManish Rangankar struct iscsi_session *sess; 1386b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1387b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1388b3a271a9SManish Rangankar int hdr_len; 1389b3a271a9SManish Rangankar 1390b3a271a9SManish Rangankar sess = task->conn->session; 1391b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1392b3a271a9SManish Rangankar ha = ddb_entry->ha; 1393b3a271a9SManish Rangankar task_data = task->dd_data; 1394b3a271a9SManish Rangankar memset(task_data, 0, sizeof(struct ql4_task_data)); 1395b3a271a9SManish Rangankar 1396b3a271a9SManish Rangankar if (task->sc) { 1397b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 1398b3a271a9SManish Rangankar "%s: SCSI Commands not implemented\n", __func__); 1399b3a271a9SManish Rangankar return -EINVAL; 1400b3a271a9SManish Rangankar } 1401b3a271a9SManish Rangankar 1402b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1403b3a271a9SManish Rangankar task_data->ha = ha; 1404b3a271a9SManish Rangankar task_data->task = task; 1405b3a271a9SManish Rangankar 1406b3a271a9SManish Rangankar if (task->data_count) { 1407b3a271a9SManish Rangankar task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 1408b3a271a9SManish Rangankar task->data_count, 1409b3a271a9SManish Rangankar PCI_DMA_TODEVICE); 1410b3a271a9SManish Rangankar } 1411b3a271a9SManish Rangankar 1412b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1413b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1414b3a271a9SManish Rangankar 141569ca216eSManish Rangankar task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 1416b3a271a9SManish Rangankar task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 1417b3a271a9SManish Rangankar task_data->resp_len, 1418b3a271a9SManish Rangankar &task_data->resp_dma, 1419b3a271a9SManish Rangankar GFP_ATOMIC); 1420b3a271a9SManish Rangankar if (!task_data->resp_buffer) 1421b3a271a9SManish Rangankar goto exit_alloc_pdu; 1422b3a271a9SManish Rangankar 142369ca216eSManish Rangankar task_data->req_len = task->data_count + hdr_len; 1424b3a271a9SManish Rangankar task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 142569ca216eSManish Rangankar task_data->req_len, 1426b3a271a9SManish Rangankar &task_data->req_dma, 1427b3a271a9SManish Rangankar GFP_ATOMIC); 1428b3a271a9SManish Rangankar if (!task_data->req_buffer) 1429b3a271a9SManish Rangankar goto exit_alloc_pdu; 1430b3a271a9SManish Rangankar 1431b3a271a9SManish Rangankar task->hdr = task_data->req_buffer; 1432b3a271a9SManish Rangankar 1433b3a271a9SManish Rangankar INIT_WORK(&task_data->task_work, qla4xxx_task_work); 1434b3a271a9SManish Rangankar 1435b3a271a9SManish Rangankar return 0; 1436b3a271a9SManish Rangankar 1437b3a271a9SManish Rangankar exit_alloc_pdu: 1438b3a271a9SManish Rangankar if (task_data->resp_buffer) 1439b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1440b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1441b3a271a9SManish Rangankar 1442b3a271a9SManish Rangankar if (task_data->req_buffer) 144369ca216eSManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1444b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1445b3a271a9SManish Rangankar return -ENOMEM; 1446b3a271a9SManish Rangankar } 1447b3a271a9SManish Rangankar 1448b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *task) 1449b3a271a9SManish Rangankar { 1450b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1451b3a271a9SManish Rangankar struct iscsi_session *sess; 1452b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1453b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1454b3a271a9SManish Rangankar int hdr_len; 1455b3a271a9SManish Rangankar 1456b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1457b3a271a9SManish Rangankar sess = task->conn->session; 1458b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1459b3a271a9SManish Rangankar ha = ddb_entry->ha; 1460b3a271a9SManish Rangankar task_data = task->dd_data; 1461b3a271a9SManish Rangankar 1462b3a271a9SManish Rangankar if (task->data_count) { 1463b3a271a9SManish Rangankar dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 1464b3a271a9SManish Rangankar task->data_count, PCI_DMA_TODEVICE); 1465b3a271a9SManish Rangankar } 1466b3a271a9SManish Rangankar 1467b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1468b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1469b3a271a9SManish Rangankar 1470b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1471b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 147269ca216eSManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1473b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1474b3a271a9SManish Rangankar return; 1475b3a271a9SManish Rangankar } 1476b3a271a9SManish Rangankar 1477b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *task) 1478b3a271a9SManish Rangankar { 1479b3a271a9SManish Rangankar struct scsi_cmnd *sc = task->sc; 1480b3a271a9SManish Rangankar struct iscsi_session *sess = task->conn->session; 1481b3a271a9SManish Rangankar struct ddb_entry *ddb_entry = sess->dd_data; 1482b3a271a9SManish Rangankar struct scsi_qla_host *ha = ddb_entry->ha; 1483b3a271a9SManish Rangankar 1484b3a271a9SManish Rangankar if (!sc) 1485b3a271a9SManish Rangankar return qla4xxx_send_passthru0(task); 1486b3a271a9SManish Rangankar 1487b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 1488b3a271a9SManish Rangankar __func__); 1489b3a271a9SManish Rangankar return -ENOSYS; 1490b3a271a9SManish Rangankar } 1491b3a271a9SManish Rangankar 149213483730SMike Christie static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 149313483730SMike Christie struct dev_db_entry *fw_ddb_entry, 149413483730SMike Christie struct iscsi_cls_session *cls_sess, 149513483730SMike Christie struct iscsi_cls_conn *cls_conn) 149613483730SMike Christie { 149713483730SMike Christie int buflen = 0; 149813483730SMike Christie struct iscsi_session *sess; 149913483730SMike Christie struct iscsi_conn *conn; 150013483730SMike Christie char ip_addr[DDB_IPADDR_LEN]; 150113483730SMike Christie uint16_t options = 0; 150213483730SMike Christie 150313483730SMike Christie sess = cls_sess->dd_data; 150413483730SMike Christie conn = cls_conn->dd_data; 150513483730SMike Christie 150613483730SMike Christie conn->max_recv_dlength = BYTE_UNITS * 150713483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 150813483730SMike Christie 150913483730SMike Christie conn->max_xmit_dlength = BYTE_UNITS * 151013483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 151113483730SMike Christie 151213483730SMike Christie sess->initial_r2t_en = 151313483730SMike Christie (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 151413483730SMike Christie 151513483730SMike Christie sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 151613483730SMike Christie 151713483730SMike Christie sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 151813483730SMike Christie 151913483730SMike Christie sess->first_burst = BYTE_UNITS * 152013483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 152113483730SMike Christie 152213483730SMike Christie sess->max_burst = BYTE_UNITS * 152313483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 152413483730SMike Christie 152513483730SMike Christie sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 152613483730SMike Christie 152713483730SMike Christie sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 152813483730SMike Christie 152913483730SMike Christie conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 153013483730SMike Christie 153113483730SMike Christie sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 153213483730SMike Christie 153313483730SMike Christie options = le16_to_cpu(fw_ddb_entry->options); 153413483730SMike Christie if (options & DDB_OPT_IPV6_DEVICE) 153513483730SMike Christie sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 153613483730SMike Christie else 153713483730SMike Christie sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 153813483730SMike Christie 153913483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 154013483730SMike Christie (char *)fw_ddb_entry->iscsi_name, buflen); 154113483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 154213483730SMike Christie (char *)ha->name_string, buflen); 154313483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 154413483730SMike Christie (char *)ip_addr, buflen); 154513483730SMike Christie } 154613483730SMike Christie 154713483730SMike Christie void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 154813483730SMike Christie struct ddb_entry *ddb_entry) 154913483730SMike Christie { 155013483730SMike Christie struct iscsi_cls_session *cls_sess; 155113483730SMike Christie struct iscsi_cls_conn *cls_conn; 155213483730SMike Christie uint32_t ddb_state; 155313483730SMike Christie dma_addr_t fw_ddb_entry_dma; 155413483730SMike Christie struct dev_db_entry *fw_ddb_entry; 155513483730SMike Christie 155613483730SMike Christie fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 155713483730SMike Christie &fw_ddb_entry_dma, GFP_KERNEL); 155813483730SMike Christie if (!fw_ddb_entry) { 155913483730SMike Christie ql4_printk(KERN_ERR, ha, 156013483730SMike Christie "%s: Unable to allocate dma buffer\n", __func__); 156113483730SMike Christie goto exit_session_conn_fwddb_param; 156213483730SMike Christie } 156313483730SMike Christie 156413483730SMike Christie if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 156513483730SMike Christie fw_ddb_entry_dma, NULL, NULL, &ddb_state, 156613483730SMike Christie NULL, NULL, NULL) == QLA_ERROR) { 156713483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 156813483730SMike Christie "get_ddb_entry for fw_ddb_index %d\n", 156913483730SMike Christie ha->host_no, __func__, 157013483730SMike Christie ddb_entry->fw_ddb_index)); 157113483730SMike Christie goto exit_session_conn_fwddb_param; 157213483730SMike Christie } 157313483730SMike Christie 157413483730SMike Christie cls_sess = ddb_entry->sess; 157513483730SMike Christie 157613483730SMike Christie cls_conn = ddb_entry->conn; 157713483730SMike Christie 157813483730SMike Christie /* Update params */ 157913483730SMike Christie qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 158013483730SMike Christie 158113483730SMike Christie exit_session_conn_fwddb_param: 158213483730SMike Christie if (fw_ddb_entry) 158313483730SMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 158413483730SMike Christie fw_ddb_entry, fw_ddb_entry_dma); 158513483730SMike Christie } 158613483730SMike Christie 1587b3a271a9SManish Rangankar void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 1588b3a271a9SManish Rangankar struct ddb_entry *ddb_entry) 1589b3a271a9SManish Rangankar { 1590b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1591b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1592b3a271a9SManish Rangankar struct iscsi_session *sess; 1593b3a271a9SManish Rangankar struct iscsi_conn *conn; 1594b3a271a9SManish Rangankar uint32_t ddb_state; 1595b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1596b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 1597b3a271a9SManish Rangankar 1598b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1599b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1600b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1601b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1602b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 160313483730SMike Christie goto exit_session_conn_param; 1604b3a271a9SManish Rangankar } 1605b3a271a9SManish Rangankar 1606b3a271a9SManish Rangankar if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 1607b3a271a9SManish Rangankar fw_ddb_entry_dma, NULL, NULL, &ddb_state, 1608b3a271a9SManish Rangankar NULL, NULL, NULL) == QLA_ERROR) { 1609b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 1610b3a271a9SManish Rangankar "get_ddb_entry for fw_ddb_index %d\n", 1611b3a271a9SManish Rangankar ha->host_no, __func__, 1612b3a271a9SManish Rangankar ddb_entry->fw_ddb_index)); 161313483730SMike Christie goto exit_session_conn_param; 1614b3a271a9SManish Rangankar } 1615b3a271a9SManish Rangankar 1616b3a271a9SManish Rangankar cls_sess = ddb_entry->sess; 1617b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1618b3a271a9SManish Rangankar 1619b3a271a9SManish Rangankar cls_conn = ddb_entry->conn; 1620b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1621b3a271a9SManish Rangankar 162213483730SMike Christie /* Update timers after login */ 162313483730SMike Christie ddb_entry->default_relogin_timeout = 162413483730SMike Christie le16_to_cpu(fw_ddb_entry->def_timeout); 162513483730SMike Christie ddb_entry->default_time2wait = 162613483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 162713483730SMike Christie 1628b3a271a9SManish Rangankar /* Update params */ 1629b3a271a9SManish Rangankar conn->max_recv_dlength = BYTE_UNITS * 1630b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 1631b3a271a9SManish Rangankar 1632b3a271a9SManish Rangankar conn->max_xmit_dlength = BYTE_UNITS * 1633b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 1634b3a271a9SManish Rangankar 1635b3a271a9SManish Rangankar sess->initial_r2t_en = 1636b3a271a9SManish Rangankar (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1637b3a271a9SManish Rangankar 1638b3a271a9SManish Rangankar sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 1639b3a271a9SManish Rangankar 1640b3a271a9SManish Rangankar sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1641b3a271a9SManish Rangankar 1642b3a271a9SManish Rangankar sess->first_burst = BYTE_UNITS * 1643b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 1644b3a271a9SManish Rangankar 1645b3a271a9SManish Rangankar sess->max_burst = BYTE_UNITS * 1646b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 1647b3a271a9SManish Rangankar 1648b3a271a9SManish Rangankar sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 1649b3a271a9SManish Rangankar 1650b3a271a9SManish Rangankar sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 1651b3a271a9SManish Rangankar 1652b3a271a9SManish Rangankar sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 1653b3a271a9SManish Rangankar 1654b3a271a9SManish Rangankar memcpy(sess->initiatorname, ha->name_string, 1655b3a271a9SManish Rangankar min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 165613483730SMike Christie 165713483730SMike Christie exit_session_conn_param: 165813483730SMike Christie if (fw_ddb_entry) 165913483730SMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 166013483730SMike Christie fw_ddb_entry, fw_ddb_entry_dma); 1661b3a271a9SManish Rangankar } 1662b3a271a9SManish Rangankar 1663afaf5a2dSDavid Somayajulu /* 1664afaf5a2dSDavid Somayajulu * Timer routines 1665afaf5a2dSDavid Somayajulu */ 1666afaf5a2dSDavid Somayajulu 1667afaf5a2dSDavid Somayajulu static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 1668afaf5a2dSDavid Somayajulu unsigned long interval) 1669afaf5a2dSDavid Somayajulu { 1670afaf5a2dSDavid Somayajulu DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 1671afaf5a2dSDavid Somayajulu __func__, ha->host->host_no)); 1672afaf5a2dSDavid Somayajulu init_timer(&ha->timer); 1673afaf5a2dSDavid Somayajulu ha->timer.expires = jiffies + interval * HZ; 1674afaf5a2dSDavid Somayajulu ha->timer.data = (unsigned long)ha; 1675afaf5a2dSDavid Somayajulu ha->timer.function = (void (*)(unsigned long))func; 1676afaf5a2dSDavid Somayajulu add_timer(&ha->timer); 1677afaf5a2dSDavid Somayajulu ha->timer_active = 1; 1678afaf5a2dSDavid Somayajulu } 1679afaf5a2dSDavid Somayajulu 1680afaf5a2dSDavid Somayajulu static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 1681afaf5a2dSDavid Somayajulu { 1682afaf5a2dSDavid Somayajulu del_timer_sync(&ha->timer); 1683afaf5a2dSDavid Somayajulu ha->timer_active = 0; 1684afaf5a2dSDavid Somayajulu } 1685afaf5a2dSDavid Somayajulu 1686afaf5a2dSDavid Somayajulu /*** 1687b3a271a9SManish Rangankar * qla4xxx_mark_device_missing - blocks the session 1688b3a271a9SManish Rangankar * @cls_session: Pointer to the session to be blocked 1689afaf5a2dSDavid Somayajulu * @ddb_entry: Pointer to device database entry 1690afaf5a2dSDavid Somayajulu * 1691f4f5df23SVikas Chaudhary * This routine marks a device missing and close connection. 1692afaf5a2dSDavid Somayajulu **/ 1693b3a271a9SManish Rangankar void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 1694afaf5a2dSDavid Somayajulu { 1695b3a271a9SManish Rangankar iscsi_block_session(cls_session); 1696afaf5a2dSDavid Somayajulu } 1697afaf5a2dSDavid Somayajulu 1698f4f5df23SVikas Chaudhary /** 1699f4f5df23SVikas Chaudhary * qla4xxx_mark_all_devices_missing - mark all devices as missing. 1700f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1701f4f5df23SVikas Chaudhary * 1702f4f5df23SVikas Chaudhary * This routine marks a device missing and resets the relogin retry count. 1703f4f5df23SVikas Chaudhary **/ 1704f4f5df23SVikas Chaudhary void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 1705f4f5df23SVikas Chaudhary { 1706b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 1707f4f5df23SVikas Chaudhary } 1708f4f5df23SVikas Chaudhary 1709afaf5a2dSDavid Somayajulu static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 1710afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, 17118f0722caSVikas Chaudhary struct scsi_cmnd *cmd) 1712afaf5a2dSDavid Somayajulu { 1713afaf5a2dSDavid Somayajulu struct srb *srb; 1714afaf5a2dSDavid Somayajulu 1715afaf5a2dSDavid Somayajulu srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 1716afaf5a2dSDavid Somayajulu if (!srb) 1717afaf5a2dSDavid Somayajulu return srb; 1718afaf5a2dSDavid Somayajulu 171909a0f719SVikas Chaudhary kref_init(&srb->srb_ref); 1720afaf5a2dSDavid Somayajulu srb->ha = ha; 1721afaf5a2dSDavid Somayajulu srb->ddb = ddb_entry; 1722afaf5a2dSDavid Somayajulu srb->cmd = cmd; 1723afaf5a2dSDavid Somayajulu srb->flags = 0; 17245369887aSVikas Chaudhary CMD_SP(cmd) = (void *)srb; 1725afaf5a2dSDavid Somayajulu 1726afaf5a2dSDavid Somayajulu return srb; 1727afaf5a2dSDavid Somayajulu } 1728afaf5a2dSDavid Somayajulu 1729afaf5a2dSDavid Somayajulu static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 1730afaf5a2dSDavid Somayajulu { 1731afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 1732afaf5a2dSDavid Somayajulu 1733afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 17345f7186c8SFUJITA Tomonori scsi_dma_unmap(cmd); 1735afaf5a2dSDavid Somayajulu srb->flags &= ~SRB_DMA_VALID; 1736afaf5a2dSDavid Somayajulu } 17375369887aSVikas Chaudhary CMD_SP(cmd) = NULL; 1738afaf5a2dSDavid Somayajulu } 1739afaf5a2dSDavid Somayajulu 174009a0f719SVikas Chaudhary void qla4xxx_srb_compl(struct kref *ref) 1741afaf5a2dSDavid Somayajulu { 174209a0f719SVikas Chaudhary struct srb *srb = container_of(ref, struct srb, srb_ref); 1743afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 174409a0f719SVikas Chaudhary struct scsi_qla_host *ha = srb->ha; 1745afaf5a2dSDavid Somayajulu 1746afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1747afaf5a2dSDavid Somayajulu 1748afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1749afaf5a2dSDavid Somayajulu 1750afaf5a2dSDavid Somayajulu cmd->scsi_done(cmd); 1751afaf5a2dSDavid Somayajulu } 1752afaf5a2dSDavid Somayajulu 1753afaf5a2dSDavid Somayajulu /** 1754afaf5a2dSDavid Somayajulu * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 17558f0722caSVikas Chaudhary * @host: scsi host 1756afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 1757afaf5a2dSDavid Somayajulu * 1758afaf5a2dSDavid Somayajulu * Remarks: 1759afaf5a2dSDavid Somayajulu * This routine is invoked by Linux to send a SCSI command to the driver. 1760afaf5a2dSDavid Somayajulu * The mid-level driver tries to ensure that queuecommand never gets 1761afaf5a2dSDavid Somayajulu * invoked concurrently with itself or the interrupt handler (although 1762afaf5a2dSDavid Somayajulu * the interrupt handler may call this routine as part of request- 1763afaf5a2dSDavid Somayajulu * completion handling). Unfortunely, it sometimes calls the scheduler 1764afaf5a2dSDavid Somayajulu * in interrupt context which is a big NO! NO!. 1765afaf5a2dSDavid Somayajulu **/ 17668f0722caSVikas Chaudhary static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 1767afaf5a2dSDavid Somayajulu { 17688f0722caSVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(host); 1769afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 17707fb1921bSMike Christie struct iscsi_cls_session *sess = ddb_entry->sess; 1771afaf5a2dSDavid Somayajulu struct srb *srb; 1772afaf5a2dSDavid Somayajulu int rval; 1773afaf5a2dSDavid Somayajulu 17742232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 17752232be0dSLalit Chandivade if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 17762232be0dSLalit Chandivade cmd->result = DID_NO_CONNECT << 16; 17772232be0dSLalit Chandivade else 17782232be0dSLalit Chandivade cmd->result = DID_REQUEUE << 16; 17792232be0dSLalit Chandivade goto qc_fail_command; 17802232be0dSLalit Chandivade } 17812232be0dSLalit Chandivade 17827fb1921bSMike Christie if (!sess) { 17837fb1921bSMike Christie cmd->result = DID_IMM_RETRY << 16; 17847fb1921bSMike Christie goto qc_fail_command; 17857fb1921bSMike Christie } 17867fb1921bSMike Christie 17877fb1921bSMike Christie rval = iscsi_session_chkready(sess); 17887fb1921bSMike Christie if (rval) { 17897fb1921bSMike Christie cmd->result = rval; 17907fb1921bSMike Christie goto qc_fail_command; 17917fb1921bSMike Christie } 17927fb1921bSMike Christie 1793f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1794f4f5df23SVikas Chaudhary test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1795f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1796f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1797f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 1798f4f5df23SVikas Chaudhary !test_bit(AF_ONLINE, &ha->flags) || 1799b3a271a9SManish Rangankar !test_bit(AF_LINK_UP, &ha->flags) || 1800f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 1801477ffb9dSDavid C Somayajulu goto qc_host_busy; 1802477ffb9dSDavid C Somayajulu 18038f0722caSVikas Chaudhary srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 1804afaf5a2dSDavid Somayajulu if (!srb) 18058f0722caSVikas Chaudhary goto qc_host_busy; 1806afaf5a2dSDavid Somayajulu 1807afaf5a2dSDavid Somayajulu rval = qla4xxx_send_command_to_isp(ha, srb); 1808afaf5a2dSDavid Somayajulu if (rval != QLA_SUCCESS) 1809afaf5a2dSDavid Somayajulu goto qc_host_busy_free_sp; 1810afaf5a2dSDavid Somayajulu 1811afaf5a2dSDavid Somayajulu return 0; 1812afaf5a2dSDavid Somayajulu 1813afaf5a2dSDavid Somayajulu qc_host_busy_free_sp: 1814afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1815afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1816afaf5a2dSDavid Somayajulu 1817afaf5a2dSDavid Somayajulu qc_host_busy: 1818afaf5a2dSDavid Somayajulu return SCSI_MLQUEUE_HOST_BUSY; 1819afaf5a2dSDavid Somayajulu 1820afaf5a2dSDavid Somayajulu qc_fail_command: 18218f0722caSVikas Chaudhary cmd->scsi_done(cmd); 1822afaf5a2dSDavid Somayajulu 1823afaf5a2dSDavid Somayajulu return 0; 1824afaf5a2dSDavid Somayajulu } 1825afaf5a2dSDavid Somayajulu 1826afaf5a2dSDavid Somayajulu /** 1827afaf5a2dSDavid Somayajulu * qla4xxx_mem_free - frees memory allocated to adapter 1828afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1829afaf5a2dSDavid Somayajulu * 1830afaf5a2dSDavid Somayajulu * Frees memory previously allocated by qla4xxx_mem_alloc 1831afaf5a2dSDavid Somayajulu **/ 1832afaf5a2dSDavid Somayajulu static void qla4xxx_mem_free(struct scsi_qla_host *ha) 1833afaf5a2dSDavid Somayajulu { 1834afaf5a2dSDavid Somayajulu if (ha->queues) 1835afaf5a2dSDavid Somayajulu dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 1836afaf5a2dSDavid Somayajulu ha->queues_dma); 1837afaf5a2dSDavid Somayajulu 1838afaf5a2dSDavid Somayajulu ha->queues_len = 0; 1839afaf5a2dSDavid Somayajulu ha->queues = NULL; 1840afaf5a2dSDavid Somayajulu ha->queues_dma = 0; 1841afaf5a2dSDavid Somayajulu ha->request_ring = NULL; 1842afaf5a2dSDavid Somayajulu ha->request_dma = 0; 1843afaf5a2dSDavid Somayajulu ha->response_ring = NULL; 1844afaf5a2dSDavid Somayajulu ha->response_dma = 0; 1845afaf5a2dSDavid Somayajulu ha->shadow_regs = NULL; 1846afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = 0; 1847afaf5a2dSDavid Somayajulu 1848afaf5a2dSDavid Somayajulu /* Free srb pool. */ 1849afaf5a2dSDavid Somayajulu if (ha->srb_mempool) 1850afaf5a2dSDavid Somayajulu mempool_destroy(ha->srb_mempool); 1851afaf5a2dSDavid Somayajulu 1852afaf5a2dSDavid Somayajulu ha->srb_mempool = NULL; 1853afaf5a2dSDavid Somayajulu 1854b3a271a9SManish Rangankar if (ha->chap_dma_pool) 1855b3a271a9SManish Rangankar dma_pool_destroy(ha->chap_dma_pool); 1856b3a271a9SManish Rangankar 18574549415aSLalit Chandivade if (ha->chap_list) 18584549415aSLalit Chandivade vfree(ha->chap_list); 18594549415aSLalit Chandivade ha->chap_list = NULL; 18604549415aSLalit Chandivade 186113483730SMike Christie if (ha->fw_ddb_dma_pool) 186213483730SMike Christie dma_pool_destroy(ha->fw_ddb_dma_pool); 186313483730SMike Christie 1864afaf5a2dSDavid Somayajulu /* release io space registers */ 1865f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1866f4f5df23SVikas Chaudhary if (ha->nx_pcibase) 1867f4f5df23SVikas Chaudhary iounmap( 1868f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)ha->nx_pcibase); 1869f4f5df23SVikas Chaudhary } else if (ha->reg) 1870afaf5a2dSDavid Somayajulu iounmap(ha->reg); 1871afaf5a2dSDavid Somayajulu pci_release_regions(ha->pdev); 1872afaf5a2dSDavid Somayajulu } 1873afaf5a2dSDavid Somayajulu 1874afaf5a2dSDavid Somayajulu /** 1875afaf5a2dSDavid Somayajulu * qla4xxx_mem_alloc - allocates memory for use by adapter. 1876afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 1877afaf5a2dSDavid Somayajulu * 1878afaf5a2dSDavid Somayajulu * Allocates DMA memory for request and response queues. Also allocates memory 1879afaf5a2dSDavid Somayajulu * for srbs. 1880afaf5a2dSDavid Somayajulu **/ 1881afaf5a2dSDavid Somayajulu static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 1882afaf5a2dSDavid Somayajulu { 1883afaf5a2dSDavid Somayajulu unsigned long align; 1884afaf5a2dSDavid Somayajulu 1885afaf5a2dSDavid Somayajulu /* Allocate contiguous block of DMA memory for queues. */ 1886afaf5a2dSDavid Somayajulu ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1887afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 1888afaf5a2dSDavid Somayajulu sizeof(struct shadow_regs) + 1889afaf5a2dSDavid Somayajulu MEM_ALIGN_VALUE + 1890afaf5a2dSDavid Somayajulu (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 1891afaf5a2dSDavid Somayajulu ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 1892afaf5a2dSDavid Somayajulu &ha->queues_dma, GFP_KERNEL); 1893afaf5a2dSDavid Somayajulu if (ha->queues == NULL) { 1894c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1895afaf5a2dSDavid Somayajulu "Memory Allocation failed - queues.\n"); 1896afaf5a2dSDavid Somayajulu 1897afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1898afaf5a2dSDavid Somayajulu } 1899afaf5a2dSDavid Somayajulu memset(ha->queues, 0, ha->queues_len); 1900afaf5a2dSDavid Somayajulu 1901afaf5a2dSDavid Somayajulu /* 1902afaf5a2dSDavid Somayajulu * As per RISC alignment requirements -- the bus-address must be a 1903afaf5a2dSDavid Somayajulu * multiple of the request-ring size (in bytes). 1904afaf5a2dSDavid Somayajulu */ 1905afaf5a2dSDavid Somayajulu align = 0; 1906afaf5a2dSDavid Somayajulu if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 1907afaf5a2dSDavid Somayajulu align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 1908afaf5a2dSDavid Somayajulu (MEM_ALIGN_VALUE - 1)); 1909afaf5a2dSDavid Somayajulu 1910afaf5a2dSDavid Somayajulu /* Update request and response queue pointers. */ 1911afaf5a2dSDavid Somayajulu ha->request_dma = ha->queues_dma + align; 1912afaf5a2dSDavid Somayajulu ha->request_ring = (struct queue_entry *) (ha->queues + align); 1913afaf5a2dSDavid Somayajulu ha->response_dma = ha->queues_dma + align + 1914afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 1915afaf5a2dSDavid Somayajulu ha->response_ring = (struct queue_entry *) (ha->queues + align + 1916afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1917afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1918afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = ha->queues_dma + align + 1919afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1920afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 1921afaf5a2dSDavid Somayajulu ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 1922afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1923afaf5a2dSDavid Somayajulu QUEUE_SIZE) + 1924afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * 1925afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1926afaf5a2dSDavid Somayajulu 1927afaf5a2dSDavid Somayajulu /* Allocate memory for srb pool. */ 1928afaf5a2dSDavid Somayajulu ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 1929afaf5a2dSDavid Somayajulu mempool_free_slab, srb_cachep); 1930afaf5a2dSDavid Somayajulu if (ha->srb_mempool == NULL) { 1931c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1932afaf5a2dSDavid Somayajulu "Memory Allocation failed - SRB Pool.\n"); 1933afaf5a2dSDavid Somayajulu 1934afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1935afaf5a2dSDavid Somayajulu } 1936afaf5a2dSDavid Somayajulu 1937b3a271a9SManish Rangankar ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 1938b3a271a9SManish Rangankar CHAP_DMA_BLOCK_SIZE, 8, 0); 1939b3a271a9SManish Rangankar 1940b3a271a9SManish Rangankar if (ha->chap_dma_pool == NULL) { 1941b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 1942b3a271a9SManish Rangankar "%s: chap_dma_pool allocation failed..\n", __func__); 1943b3a271a9SManish Rangankar goto mem_alloc_error_exit; 1944b3a271a9SManish Rangankar } 1945b3a271a9SManish Rangankar 194613483730SMike Christie ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 194713483730SMike Christie DDB_DMA_BLOCK_SIZE, 8, 0); 194813483730SMike Christie 194913483730SMike Christie if (ha->fw_ddb_dma_pool == NULL) { 195013483730SMike Christie ql4_printk(KERN_WARNING, ha, 195113483730SMike Christie "%s: fw_ddb_dma_pool allocation failed..\n", 195213483730SMike Christie __func__); 195313483730SMike Christie goto mem_alloc_error_exit; 195413483730SMike Christie } 195513483730SMike Christie 1956afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 1957afaf5a2dSDavid Somayajulu 1958afaf5a2dSDavid Somayajulu mem_alloc_error_exit: 1959afaf5a2dSDavid Somayajulu qla4xxx_mem_free(ha); 1960afaf5a2dSDavid Somayajulu return QLA_ERROR; 1961afaf5a2dSDavid Somayajulu } 1962afaf5a2dSDavid Somayajulu 1963afaf5a2dSDavid Somayajulu /** 1964f4f5df23SVikas Chaudhary * qla4_8xxx_check_fw_alive - Check firmware health 1965f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1966f4f5df23SVikas Chaudhary * 1967f4f5df23SVikas Chaudhary * Context: Interrupt 1968f4f5df23SVikas Chaudhary **/ 1969f4f5df23SVikas Chaudhary static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 1970f4f5df23SVikas Chaudhary { 1971f4f5df23SVikas Chaudhary uint32_t fw_heartbeat_counter, halt_status; 1972f4f5df23SVikas Chaudhary 1973f4f5df23SVikas Chaudhary fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 19742232be0dSLalit Chandivade /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 19752232be0dSLalit Chandivade if (fw_heartbeat_counter == 0xffffffff) { 19762232be0dSLalit Chandivade DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 19772232be0dSLalit Chandivade "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 19782232be0dSLalit Chandivade ha->host_no, __func__)); 19792232be0dSLalit Chandivade return; 19802232be0dSLalit Chandivade } 1981f4f5df23SVikas Chaudhary 1982f4f5df23SVikas Chaudhary if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 1983f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat++; 1984f4f5df23SVikas Chaudhary /* FW not alive after 2 seconds */ 1985f4f5df23SVikas Chaudhary if (ha->seconds_since_last_heartbeat == 2) { 1986f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat = 0; 1987f4f5df23SVikas Chaudhary halt_status = qla4_8xxx_rd_32(ha, 1988f4f5df23SVikas Chaudhary QLA82XX_PEG_HALT_STATUS1); 198968d92ebfSVikas Chaudhary 199068d92ebfSVikas Chaudhary ql4_printk(KERN_INFO, ha, 199168d92ebfSVikas Chaudhary "scsi(%ld): %s, Dumping hw/fw registers:\n " 199268d92ebfSVikas Chaudhary " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:" 199368d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:" 199468d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:" 199568d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_4_PC: 0x%x\n", 199668d92ebfSVikas Chaudhary ha->host_no, __func__, halt_status, 199768d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, 199868d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 199968d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 200068d92ebfSVikas Chaudhary 0x3c), 200168d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 200268d92ebfSVikas Chaudhary 0x3c), 200368d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 200468d92ebfSVikas Chaudhary 0x3c), 200568d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 200668d92ebfSVikas Chaudhary 0x3c), 200768d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 200868d92ebfSVikas Chaudhary 0x3c)); 200921033639SNilesh Javali 2010f4f5df23SVikas Chaudhary /* Since we cannot change dev_state in interrupt 2011f4f5df23SVikas Chaudhary * context, set appropriate DPC flag then wakeup 2012f4f5df23SVikas Chaudhary * DPC */ 2013f4f5df23SVikas Chaudhary if (halt_status & HALT_STATUS_UNRECOVERABLE) 2014f4f5df23SVikas Chaudhary set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 2015f4f5df23SVikas Chaudhary else { 2016f4f5df23SVikas Chaudhary printk("scsi%ld: %s: detect abort needed!\n", 2017f4f5df23SVikas Chaudhary ha->host_no, __func__); 2018f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2019f4f5df23SVikas Chaudhary } 2020f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 202121033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 2022f4f5df23SVikas Chaudhary } 202399457d75SLalit Chandivade } else 202499457d75SLalit Chandivade ha->seconds_since_last_heartbeat = 0; 202599457d75SLalit Chandivade 2026f4f5df23SVikas Chaudhary ha->fw_heartbeat_counter = fw_heartbeat_counter; 2027f4f5df23SVikas Chaudhary } 2028f4f5df23SVikas Chaudhary 2029f4f5df23SVikas Chaudhary /** 2030f4f5df23SVikas Chaudhary * qla4_8xxx_watchdog - Poll dev state 2031f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 2032f4f5df23SVikas Chaudhary * 2033f4f5df23SVikas Chaudhary * Context: Interrupt 2034f4f5df23SVikas Chaudhary **/ 2035f4f5df23SVikas Chaudhary void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 2036f4f5df23SVikas Chaudhary { 2037f4f5df23SVikas Chaudhary uint32_t dev_state; 2038f4f5df23SVikas Chaudhary 2039f4f5df23SVikas Chaudhary dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 2040f4f5df23SVikas Chaudhary 2041f4f5df23SVikas Chaudhary /* don't poll if reset is going on */ 2042d56a1f7bSLalit Chandivade if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2043d56a1f7bSLalit Chandivade test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2044977f46a4SVikas Chaudhary test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 2045f4f5df23SVikas Chaudhary if (dev_state == QLA82XX_DEV_NEED_RESET && 2046f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 20473930b8c1SVikas Chaudhary if (!ql4xdontresethba) { 20483930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: " 20493930b8c1SVikas Chaudhary "NEED RESET!\n", __func__); 2050f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2051f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 205221033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 20533930b8c1SVikas Chaudhary } 2054f4f5df23SVikas Chaudhary } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT && 2055f4f5df23SVikas Chaudhary !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 20563930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 20573930b8c1SVikas Chaudhary __func__); 2058f4f5df23SVikas Chaudhary set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 2059f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 2060f4f5df23SVikas Chaudhary } else { 2061f4f5df23SVikas Chaudhary /* Check firmware health */ 2062f4f5df23SVikas Chaudhary qla4_8xxx_check_fw_alive(ha); 2063f4f5df23SVikas Chaudhary } 2064f4f5df23SVikas Chaudhary } 2065f4f5df23SVikas Chaudhary } 2066f4f5df23SVikas Chaudhary 206713483730SMike Christie void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 206813483730SMike Christie { 206913483730SMike Christie struct iscsi_session *sess; 207013483730SMike Christie struct ddb_entry *ddb_entry; 207113483730SMike Christie struct scsi_qla_host *ha; 207213483730SMike Christie 207313483730SMike Christie sess = cls_sess->dd_data; 207413483730SMike Christie ddb_entry = sess->dd_data; 207513483730SMike Christie ha = ddb_entry->ha; 207613483730SMike Christie 207713483730SMike Christie if (!(ddb_entry->ddb_type == FLASH_DDB)) 207813483730SMike Christie return; 207913483730SMike Christie 208013483730SMike Christie if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 208113483730SMike Christie !iscsi_is_session_online(cls_sess)) { 208213483730SMike Christie if (atomic_read(&ddb_entry->retry_relogin_timer) != 208313483730SMike Christie INVALID_ENTRY) { 208413483730SMike Christie if (atomic_read(&ddb_entry->retry_relogin_timer) == 208513483730SMike Christie 0) { 208613483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, 208713483730SMike Christie INVALID_ENTRY); 208813483730SMike Christie set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 208913483730SMike Christie set_bit(DF_RELOGIN, &ddb_entry->flags); 209013483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 209113483730SMike Christie "%s: index [%d] login device\n", 209213483730SMike Christie __func__, ddb_entry->fw_ddb_index)); 209313483730SMike Christie } else 209413483730SMike Christie atomic_dec(&ddb_entry->retry_relogin_timer); 209513483730SMike Christie } 209613483730SMike Christie } 209713483730SMike Christie 209813483730SMike Christie /* Wait for relogin to timeout */ 209913483730SMike Christie if (atomic_read(&ddb_entry->relogin_timer) && 210013483730SMike Christie (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 210113483730SMike Christie /* 210213483730SMike Christie * If the relogin times out and the device is 210313483730SMike Christie * still NOT ONLINE then try and relogin again. 210413483730SMike Christie */ 210513483730SMike Christie if (!iscsi_is_session_online(cls_sess)) { 210613483730SMike Christie /* Reset retry relogin timer */ 210713483730SMike Christie atomic_inc(&ddb_entry->relogin_retry_count); 210813483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 210913483730SMike Christie "%s: index[%d] relogin timed out-retrying" 211013483730SMike Christie " relogin (%d), retry (%d)\n", __func__, 211113483730SMike Christie ddb_entry->fw_ddb_index, 211213483730SMike Christie atomic_read(&ddb_entry->relogin_retry_count), 211313483730SMike Christie ddb_entry->default_time2wait + 4)); 211413483730SMike Christie set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 211513483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, 211613483730SMike Christie ddb_entry->default_time2wait + 4); 211713483730SMike Christie } 211813483730SMike Christie } 211913483730SMike Christie } 212013483730SMike Christie 2121f4f5df23SVikas Chaudhary /** 2122afaf5a2dSDavid Somayajulu * qla4xxx_timer - checks every second for work to do. 2123afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2124afaf5a2dSDavid Somayajulu **/ 2125afaf5a2dSDavid Somayajulu static void qla4xxx_timer(struct scsi_qla_host *ha) 2126afaf5a2dSDavid Somayajulu { 2127afaf5a2dSDavid Somayajulu int start_dpc = 0; 21282232be0dSLalit Chandivade uint16_t w; 21292232be0dSLalit Chandivade 213013483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 213113483730SMike Christie 21322232be0dSLalit Chandivade /* If we are in the middle of AER/EEH processing 21332232be0dSLalit Chandivade * skip any processing and reschedule the timer 21342232be0dSLalit Chandivade */ 21352232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 21362232be0dSLalit Chandivade mod_timer(&ha->timer, jiffies + HZ); 21372232be0dSLalit Chandivade return; 21382232be0dSLalit Chandivade } 21392232be0dSLalit Chandivade 21402232be0dSLalit Chandivade /* Hardware read to trigger an EEH error during mailbox waits. */ 21412232be0dSLalit Chandivade if (!pci_channel_offline(ha->pdev)) 21422232be0dSLalit Chandivade pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 2143afaf5a2dSDavid Somayajulu 2144f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2145f4f5df23SVikas Chaudhary qla4_8xxx_watchdog(ha); 2146f4f5df23SVikas Chaudhary } 2147f4f5df23SVikas Chaudhary 2148f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 2149afaf5a2dSDavid Somayajulu /* Check for heartbeat interval. */ 2150afaf5a2dSDavid Somayajulu if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 2151afaf5a2dSDavid Somayajulu ha->heartbeat_interval != 0) { 2152afaf5a2dSDavid Somayajulu ha->seconds_since_last_heartbeat++; 2153afaf5a2dSDavid Somayajulu if (ha->seconds_since_last_heartbeat > 2154afaf5a2dSDavid Somayajulu ha->heartbeat_interval + 2) 2155afaf5a2dSDavid Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 2156afaf5a2dSDavid Somayajulu } 2157f4f5df23SVikas Chaudhary } 2158afaf5a2dSDavid Somayajulu 2159afaf5a2dSDavid Somayajulu /* Wakeup the dpc routine for this adapter, if needed. */ 21601b46807eSLalit Chandivade if (start_dpc || 2161afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2162afaf5a2dSDavid Somayajulu test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 2163afaf5a2dSDavid Somayajulu test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 2164f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2165afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2166afaf5a2dSDavid Somayajulu test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 2167065aa1b4SVikas Chaudhary test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 2168f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2169f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 21701b46807eSLalit Chandivade test_bit(DPC_AEN, &ha->dpc_flags)) { 2171afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 2172afaf5a2dSDavid Somayajulu " - dpc flags = 0x%lx\n", 2173afaf5a2dSDavid Somayajulu ha->host_no, __func__, ha->dpc_flags)); 2174f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 2175afaf5a2dSDavid Somayajulu } 2176afaf5a2dSDavid Somayajulu 2177afaf5a2dSDavid Somayajulu /* Reschedule timer thread to call us back in one second */ 2178afaf5a2dSDavid Somayajulu mod_timer(&ha->timer, jiffies + HZ); 2179afaf5a2dSDavid Somayajulu 2180afaf5a2dSDavid Somayajulu DEBUG2(ha->seconds_since_last_intr++); 2181afaf5a2dSDavid Somayajulu } 2182afaf5a2dSDavid Somayajulu 2183afaf5a2dSDavid Somayajulu /** 2184afaf5a2dSDavid Somayajulu * qla4xxx_cmd_wait - waits for all outstanding commands to complete 2185afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2186afaf5a2dSDavid Somayajulu * 2187afaf5a2dSDavid Somayajulu * This routine stalls the driver until all outstanding commands are returned. 2188afaf5a2dSDavid Somayajulu * Caller must release the Hardware Lock prior to calling this routine. 2189afaf5a2dSDavid Somayajulu **/ 2190afaf5a2dSDavid Somayajulu static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 2191afaf5a2dSDavid Somayajulu { 2192afaf5a2dSDavid Somayajulu uint32_t index = 0; 2193afaf5a2dSDavid Somayajulu unsigned long flags; 2194afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 2195afaf5a2dSDavid Somayajulu 2196f4f5df23SVikas Chaudhary unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 2197f4f5df23SVikas Chaudhary 2198f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 2199f4f5df23SVikas Chaudhary "complete\n", WAIT_CMD_TOV)); 2200f4f5df23SVikas Chaudhary 2201f4f5df23SVikas Chaudhary while (!time_after_eq(jiffies, wtime)) { 2202afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2203afaf5a2dSDavid Somayajulu /* Find a command that hasn't completed. */ 2204afaf5a2dSDavid Somayajulu for (index = 0; index < ha->host->can_queue; index++) { 2205afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, index); 2206a1e0063dSMike Christie /* 2207a1e0063dSMike Christie * We cannot just check if the index is valid, 2208a1e0063dSMike Christie * becase if we are run from the scsi eh, then 2209a1e0063dSMike Christie * the scsi/block layer is going to prevent 2210a1e0063dSMike Christie * the tag from being released. 2211a1e0063dSMike Christie */ 2212a1e0063dSMike Christie if (cmd != NULL && CMD_SP(cmd)) 2213afaf5a2dSDavid Somayajulu break; 2214afaf5a2dSDavid Somayajulu } 2215afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2216afaf5a2dSDavid Somayajulu 2217afaf5a2dSDavid Somayajulu /* If No Commands are pending, wait is complete */ 2218f4f5df23SVikas Chaudhary if (index == ha->host->can_queue) 2219f4f5df23SVikas Chaudhary return QLA_SUCCESS; 2220afaf5a2dSDavid Somayajulu 2221afaf5a2dSDavid Somayajulu msleep(1000); 2222afaf5a2dSDavid Somayajulu } 2223f4f5df23SVikas Chaudhary /* If we timed out on waiting for commands to come back 2224f4f5df23SVikas Chaudhary * return ERROR. */ 2225f4f5df23SVikas Chaudhary return QLA_ERROR; 2226afaf5a2dSDavid Somayajulu } 2227afaf5a2dSDavid Somayajulu 2228f4f5df23SVikas Chaudhary int qla4xxx_hw_reset(struct scsi_qla_host *ha) 2229afaf5a2dSDavid Somayajulu { 2230afaf5a2dSDavid Somayajulu uint32_t ctrl_status; 2231477ffb9dSDavid C Somayajulu unsigned long flags = 0; 2232477ffb9dSDavid C Somayajulu 2233477ffb9dSDavid C Somayajulu DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 2234afaf5a2dSDavid Somayajulu 2235f4f5df23SVikas Chaudhary if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 2236f4f5df23SVikas Chaudhary return QLA_ERROR; 2237f4f5df23SVikas Chaudhary 2238afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2239afaf5a2dSDavid Somayajulu 2240afaf5a2dSDavid Somayajulu /* 2241afaf5a2dSDavid Somayajulu * If the SCSI Reset Interrupt bit is set, clear it. 2242afaf5a2dSDavid Somayajulu * Otherwise, the Soft Reset won't work. 2243afaf5a2dSDavid Somayajulu */ 2244afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2245afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 2246afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2247afaf5a2dSDavid Somayajulu 2248afaf5a2dSDavid Somayajulu /* Issue Soft Reset */ 2249afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 2250afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2251afaf5a2dSDavid Somayajulu 2252afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2253f4f5df23SVikas Chaudhary return QLA_SUCCESS; 2254477ffb9dSDavid C Somayajulu } 2255477ffb9dSDavid C Somayajulu 2256477ffb9dSDavid C Somayajulu /** 2257477ffb9dSDavid C Somayajulu * qla4xxx_soft_reset - performs soft reset. 2258477ffb9dSDavid C Somayajulu * @ha: Pointer to host adapter structure. 2259477ffb9dSDavid C Somayajulu **/ 2260477ffb9dSDavid C Somayajulu int qla4xxx_soft_reset(struct scsi_qla_host *ha) 2261477ffb9dSDavid C Somayajulu { 2262477ffb9dSDavid C Somayajulu uint32_t max_wait_time; 2263477ffb9dSDavid C Somayajulu unsigned long flags = 0; 2264f931c534SVikas Chaudhary int status; 2265477ffb9dSDavid C Somayajulu uint32_t ctrl_status; 2266477ffb9dSDavid C Somayajulu 2267f931c534SVikas Chaudhary status = qla4xxx_hw_reset(ha); 2268f931c534SVikas Chaudhary if (status != QLA_SUCCESS) 2269f931c534SVikas Chaudhary return status; 2270afaf5a2dSDavid Somayajulu 2271f931c534SVikas Chaudhary status = QLA_ERROR; 2272afaf5a2dSDavid Somayajulu /* Wait until the Network Reset Intr bit is cleared */ 2273afaf5a2dSDavid Somayajulu max_wait_time = RESET_INTR_TOV; 2274afaf5a2dSDavid Somayajulu do { 2275afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2276afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2277afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2278afaf5a2dSDavid Somayajulu 2279afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 2280afaf5a2dSDavid Somayajulu break; 2281afaf5a2dSDavid Somayajulu 2282afaf5a2dSDavid Somayajulu msleep(1000); 2283afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2284afaf5a2dSDavid Somayajulu 2285afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 2286afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_WARNING 2287afaf5a2dSDavid Somayajulu "scsi%ld: Network Reset Intr not cleared by " 2288afaf5a2dSDavid Somayajulu "Network function, clearing it now!\n", 2289afaf5a2dSDavid Somayajulu ha->host_no)); 2290afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2291afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 2292afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2293afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2294afaf5a2dSDavid Somayajulu } 2295afaf5a2dSDavid Somayajulu 2296afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 2297afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 2298afaf5a2dSDavid Somayajulu do { 2299afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2300afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2301afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2302afaf5a2dSDavid Somayajulu 2303afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SOFT_RESET) == 0) { 2304afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2305afaf5a2dSDavid Somayajulu break; 2306afaf5a2dSDavid Somayajulu } 2307afaf5a2dSDavid Somayajulu 2308afaf5a2dSDavid Somayajulu msleep(1000); 2309afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2310afaf5a2dSDavid Somayajulu 2311afaf5a2dSDavid Somayajulu /* 2312afaf5a2dSDavid Somayajulu * Also, make sure that the SCSI Reset Interrupt bit has been cleared 2313afaf5a2dSDavid Somayajulu * after the soft reset has taken place. 2314afaf5a2dSDavid Somayajulu */ 2315afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2316afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2317afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 2318afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2319afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2320afaf5a2dSDavid Somayajulu } 2321afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2322afaf5a2dSDavid Somayajulu 2323afaf5a2dSDavid Somayajulu /* If soft reset fails then most probably the bios on other 2324afaf5a2dSDavid Somayajulu * function is also enabled. 2325afaf5a2dSDavid Somayajulu * Since the initialization is sequential the other fn 2326afaf5a2dSDavid Somayajulu * wont be able to acknowledge the soft reset. 2327afaf5a2dSDavid Somayajulu * Issue a force soft reset to workaround this scenario. 2328afaf5a2dSDavid Somayajulu */ 2329afaf5a2dSDavid Somayajulu if (max_wait_time == 0) { 2330afaf5a2dSDavid Somayajulu /* Issue Force Soft Reset */ 2331afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2332afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 2333afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2334afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2335afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 2336afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 2337afaf5a2dSDavid Somayajulu do { 2338afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2339afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2340afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2341afaf5a2dSDavid Somayajulu 2342afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 2343afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2344afaf5a2dSDavid Somayajulu break; 2345afaf5a2dSDavid Somayajulu } 2346afaf5a2dSDavid Somayajulu 2347afaf5a2dSDavid Somayajulu msleep(1000); 2348afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2349afaf5a2dSDavid Somayajulu } 2350afaf5a2dSDavid Somayajulu 2351afaf5a2dSDavid Somayajulu return status; 2352afaf5a2dSDavid Somayajulu } 2353afaf5a2dSDavid Somayajulu 2354afaf5a2dSDavid Somayajulu /** 2355f4f5df23SVikas Chaudhary * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 2356afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2357f4f5df23SVikas Chaudhary * @res: returned scsi status 2358afaf5a2dSDavid Somayajulu * 2359afaf5a2dSDavid Somayajulu * This routine is called just prior to a HARD RESET to return all 2360afaf5a2dSDavid Somayajulu * outstanding commands back to the Operating System. 2361afaf5a2dSDavid Somayajulu * Caller should make sure that the following locks are released 2362afaf5a2dSDavid Somayajulu * before this calling routine: Hardware lock, and io_request_lock. 2363afaf5a2dSDavid Somayajulu **/ 2364f4f5df23SVikas Chaudhary static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 2365afaf5a2dSDavid Somayajulu { 2366afaf5a2dSDavid Somayajulu struct srb *srb; 2367afaf5a2dSDavid Somayajulu int i; 2368afaf5a2dSDavid Somayajulu unsigned long flags; 2369afaf5a2dSDavid Somayajulu 2370afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2371afaf5a2dSDavid Somayajulu for (i = 0; i < ha->host->can_queue; i++) { 2372afaf5a2dSDavid Somayajulu srb = qla4xxx_del_from_active_array(ha, i); 2373afaf5a2dSDavid Somayajulu if (srb != NULL) { 2374f4f5df23SVikas Chaudhary srb->cmd->result = res; 237509a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 2376afaf5a2dSDavid Somayajulu } 2377afaf5a2dSDavid Somayajulu } 2378afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2379afaf5a2dSDavid Somayajulu } 2380afaf5a2dSDavid Somayajulu 2381f4f5df23SVikas Chaudhary void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 2382f4f5df23SVikas Chaudhary { 2383f4f5df23SVikas Chaudhary clear_bit(AF_ONLINE, &ha->flags); 2384f4f5df23SVikas Chaudhary 2385f4f5df23SVikas Chaudhary /* Disable the board */ 2386f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 2387f4f5df23SVikas Chaudhary 2388f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2389f4f5df23SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2390f4f5df23SVikas Chaudhary clear_bit(AF_INIT_DONE, &ha->flags); 2391f4f5df23SVikas Chaudhary } 2392f4f5df23SVikas Chaudhary 2393b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 2394b3a271a9SManish Rangankar { 2395b3a271a9SManish Rangankar struct iscsi_session *sess; 2396b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2397b3a271a9SManish Rangankar 2398b3a271a9SManish Rangankar sess = cls_session->dd_data; 2399b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2400b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 240113483730SMike Christie 240213483730SMike Christie if (ddb_entry->ddb_type == FLASH_DDB) 240313483730SMike Christie iscsi_block_session(ddb_entry->sess); 240413483730SMike Christie else 240513483730SMike Christie iscsi_session_failure(cls_session->dd_data, 240613483730SMike Christie ISCSI_ERR_CONN_FAILED); 2407b3a271a9SManish Rangankar } 2408b3a271a9SManish Rangankar 2409afaf5a2dSDavid Somayajulu /** 2410afaf5a2dSDavid Somayajulu * qla4xxx_recover_adapter - recovers adapter after a fatal error 2411afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2412afaf5a2dSDavid Somayajulu **/ 2413f4f5df23SVikas Chaudhary static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 2414afaf5a2dSDavid Somayajulu { 2415f4f5df23SVikas Chaudhary int status = QLA_ERROR; 2416f4f5df23SVikas Chaudhary uint8_t reset_chip = 0; 2417afaf5a2dSDavid Somayajulu 2418afaf5a2dSDavid Somayajulu /* Stall incoming I/O until we are done */ 2419f4f5df23SVikas Chaudhary scsi_block_requests(ha->host); 2420afaf5a2dSDavid Somayajulu clear_bit(AF_ONLINE, &ha->flags); 2421b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 242250a29aecSMike Christie 2423f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 2424afaf5a2dSDavid Somayajulu 2425f4f5df23SVikas Chaudhary set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2426afaf5a2dSDavid Somayajulu 2427b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 2428b3a271a9SManish Rangankar 2429f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2430f4f5df23SVikas Chaudhary reset_chip = 1; 2431afaf5a2dSDavid Somayajulu 2432f4f5df23SVikas Chaudhary /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 2433f4f5df23SVikas Chaudhary * do not reset adapter, jump to initialize_adapter */ 2434f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2435f4f5df23SVikas Chaudhary status = QLA_SUCCESS; 2436f4f5df23SVikas Chaudhary goto recover_ha_init_adapter; 2437afaf5a2dSDavid Somayajulu } 2438afaf5a2dSDavid Somayajulu 2439f4f5df23SVikas Chaudhary /* For the ISP-82xx adapter, issue a stop_firmware if invoked 2440f4f5df23SVikas Chaudhary * from eh_host_reset or ioctl module */ 2441f4f5df23SVikas Chaudhary if (is_qla8022(ha) && !reset_chip && 2442f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2443f4f5df23SVikas Chaudhary 2444f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2445f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing stop_firmware...\n", 2446f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2447f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_firmware(ha); 2448f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 24492bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2450f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2451f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2452f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2453f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2454f4f5df23SVikas Chaudhary } else { 2455f4f5df23SVikas Chaudhary /* If the stop_firmware fails then 2456f4f5df23SVikas Chaudhary * reset the entire chip */ 2457f4f5df23SVikas Chaudhary reset_chip = 1; 2458f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2459f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2460f4f5df23SVikas Chaudhary } 2461f4f5df23SVikas Chaudhary } 2462f4f5df23SVikas Chaudhary 2463f4f5df23SVikas Chaudhary /* Issue full chip reset if recovering from a catastrophic error, 2464f4f5df23SVikas Chaudhary * or if stop_firmware fails for ISP-82xx. 2465f4f5df23SVikas Chaudhary * This is the default case for ISP-4xxx */ 2466f4f5df23SVikas Chaudhary if (!is_qla8022(ha) || reset_chip) { 24672bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2468f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2469f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2470f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2471f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2472f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing chip reset..\n", 2473f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2474f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_chip(ha); 2475f4f5df23SVikas Chaudhary } 2476f4f5df23SVikas Chaudhary 2477f4f5df23SVikas Chaudhary /* Flush any pending ddb changed AENs */ 2478f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2479f4f5df23SVikas Chaudhary 2480f4f5df23SVikas Chaudhary recover_ha_init_adapter: 2481f4f5df23SVikas Chaudhary /* Upon successful firmware/chip reset, re-initialize the adapter */ 2482f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 2483f4f5df23SVikas Chaudhary /* For ISP-4xxx, force function 1 to always initialize 2484f4f5df23SVikas Chaudhary * before function 3 to prevent both funcions from 2485f4f5df23SVikas Chaudhary * stepping on top of the other */ 2486f4f5df23SVikas Chaudhary if (!is_qla8022(ha) && (ha->mac_index == 3)) 2487f4f5df23SVikas Chaudhary ssleep(6); 2488f4f5df23SVikas Chaudhary 2489f4f5df23SVikas Chaudhary /* NOTE: AF_ONLINE flag set upon successful completion of 2490f4f5df23SVikas Chaudhary * qla4xxx_initialize_adapter */ 249113483730SMike Christie status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 2492f4f5df23SVikas Chaudhary } 2493f4f5df23SVikas Chaudhary 2494f4f5df23SVikas Chaudhary /* Retry failed adapter initialization, if necessary 2495f4f5df23SVikas Chaudhary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 2496f4f5df23SVikas Chaudhary * case to prevent ping-pong resets between functions */ 2497f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags) && 2498f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2499afaf5a2dSDavid Somayajulu /* Adapter initialization failed, see if we can retry 2500f4f5df23SVikas Chaudhary * resetting the ha. 2501f4f5df23SVikas Chaudhary * Since we don't want to block the DPC for too long 2502f4f5df23SVikas Chaudhary * with multiple resets in the same thread, 2503f4f5df23SVikas Chaudhary * utilize DPC to retry */ 2504afaf5a2dSDavid Somayajulu if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 2505afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 2506afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - retrying " 2507afaf5a2dSDavid Somayajulu "(%d) more times\n", ha->host_no, 2508afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2509afaf5a2dSDavid Somayajulu set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2510afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2511afaf5a2dSDavid Somayajulu } else { 2512afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt > 0) { 2513afaf5a2dSDavid Somayajulu /* Schedule another Reset HA--DPC will retry */ 2514afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt--; 2515afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - " 2516afaf5a2dSDavid Somayajulu "retry remaining %d\n", 2517afaf5a2dSDavid Somayajulu ha->host_no, 2518afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2519afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2520afaf5a2dSDavid Somayajulu } 2521afaf5a2dSDavid Somayajulu 2522afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt == 0) { 2523afaf5a2dSDavid Somayajulu /* Recover adapter retries have been exhausted. 2524afaf5a2dSDavid Somayajulu * Adapter DEAD */ 2525afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter " 2526afaf5a2dSDavid Somayajulu "failed - board disabled\n", 2527afaf5a2dSDavid Somayajulu ha->host_no)); 2528f4f5df23SVikas Chaudhary qla4xxx_dead_adapter_cleanup(ha); 2529afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2530afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2531f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, 2532afaf5a2dSDavid Somayajulu &ha->dpc_flags); 2533afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2534afaf5a2dSDavid Somayajulu } 2535afaf5a2dSDavid Somayajulu } 2536afaf5a2dSDavid Somayajulu } else { 2537afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2538f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2539afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2540afaf5a2dSDavid Somayajulu } 2541afaf5a2dSDavid Somayajulu 2542afaf5a2dSDavid Somayajulu ha->adapter_error_count++; 2543afaf5a2dSDavid Somayajulu 2544f4f5df23SVikas Chaudhary if (test_bit(AF_ONLINE, &ha->flags)) 2545f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2546afaf5a2dSDavid Somayajulu 2547f4f5df23SVikas Chaudhary scsi_unblock_requests(ha->host); 2548f4f5df23SVikas Chaudhary 2549f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2550f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 255125985edcSLucas De Marchi status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 2552f4f5df23SVikas Chaudhary 2553afaf5a2dSDavid Somayajulu return status; 2554afaf5a2dSDavid Somayajulu } 2555afaf5a2dSDavid Somayajulu 2556b3a271a9SManish Rangankar static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 2557b3a271a9SManish Rangankar { 2558b3a271a9SManish Rangankar struct iscsi_session *sess; 2559b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2560b3a271a9SManish Rangankar struct scsi_qla_host *ha; 2561b3a271a9SManish Rangankar 2562b3a271a9SManish Rangankar sess = cls_session->dd_data; 2563b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2564b3a271a9SManish Rangankar ha = ddb_entry->ha; 2565b3a271a9SManish Rangankar if (!iscsi_is_session_online(cls_session)) { 2566b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 2567b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 2568b3a271a9SManish Rangankar " unblock session\n", ha->host_no, __func__, 2569b3a271a9SManish Rangankar ddb_entry->fw_ddb_index); 2570b3a271a9SManish Rangankar iscsi_unblock_session(ddb_entry->sess); 2571b3a271a9SManish Rangankar } else { 2572b3a271a9SManish Rangankar /* Trigger relogin */ 257313483730SMike Christie if (ddb_entry->ddb_type == FLASH_DDB) { 257413483730SMike Christie if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 257513483730SMike Christie qla4xxx_arm_relogin_timer(ddb_entry); 257613483730SMike Christie } else 2577b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, 2578b3a271a9SManish Rangankar ISCSI_ERR_CONN_FAILED); 2579b3a271a9SManish Rangankar } 2580b3a271a9SManish Rangankar } 2581b3a271a9SManish Rangankar } 2582b3a271a9SManish Rangankar 258313483730SMike Christie int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 258413483730SMike Christie { 258513483730SMike Christie struct iscsi_session *sess; 258613483730SMike Christie struct ddb_entry *ddb_entry; 258713483730SMike Christie struct scsi_qla_host *ha; 258813483730SMike Christie 258913483730SMike Christie sess = cls_session->dd_data; 259013483730SMike Christie ddb_entry = sess->dd_data; 259113483730SMike Christie ha = ddb_entry->ha; 259213483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 259313483730SMike Christie " unblock session\n", ha->host_no, __func__, 259413483730SMike Christie ddb_entry->fw_ddb_index); 259513483730SMike Christie 259613483730SMike Christie iscsi_unblock_session(ddb_entry->sess); 259713483730SMike Christie 259813483730SMike Christie /* Start scan target */ 259913483730SMike Christie if (test_bit(AF_ONLINE, &ha->flags)) { 260013483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 260113483730SMike Christie " start scan\n", ha->host_no, __func__, 260213483730SMike Christie ddb_entry->fw_ddb_index); 260313483730SMike Christie scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 260413483730SMike Christie } 260513483730SMike Christie return QLA_SUCCESS; 260613483730SMike Christie } 260713483730SMike Christie 260813483730SMike Christie int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 260913483730SMike Christie { 261013483730SMike Christie struct iscsi_session *sess; 261113483730SMike Christie struct ddb_entry *ddb_entry; 261213483730SMike Christie struct scsi_qla_host *ha; 261313483730SMike Christie 261413483730SMike Christie sess = cls_session->dd_data; 261513483730SMike Christie ddb_entry = sess->dd_data; 261613483730SMike Christie ha = ddb_entry->ha; 261713483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 261813483730SMike Christie " unblock user space session\n", ha->host_no, __func__, 261913483730SMike Christie ddb_entry->fw_ddb_index); 262013483730SMike Christie iscsi_conn_start(ddb_entry->conn); 262113483730SMike Christie iscsi_conn_login_event(ddb_entry->conn, 262213483730SMike Christie ISCSI_CONN_STATE_LOGGED_IN); 262313483730SMike Christie 262413483730SMike Christie return QLA_SUCCESS; 262513483730SMike Christie } 262613483730SMike Christie 26272d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 26282d7924e6SVikas Chaudhary { 2629b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 26302d7924e6SVikas Chaudhary } 26312d7924e6SVikas Chaudhary 263213483730SMike Christie static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 263313483730SMike Christie { 263413483730SMike Christie uint16_t relogin_timer; 263513483730SMike Christie struct iscsi_session *sess; 263613483730SMike Christie struct ddb_entry *ddb_entry; 263713483730SMike Christie struct scsi_qla_host *ha; 263813483730SMike Christie 263913483730SMike Christie sess = cls_sess->dd_data; 264013483730SMike Christie ddb_entry = sess->dd_data; 264113483730SMike Christie ha = ddb_entry->ha; 264213483730SMike Christie 264313483730SMike Christie relogin_timer = max(ddb_entry->default_relogin_timeout, 264413483730SMike Christie (uint16_t)RELOGIN_TOV); 264513483730SMike Christie atomic_set(&ddb_entry->relogin_timer, relogin_timer); 264613483730SMike Christie 264713483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 264813483730SMike Christie "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 264913483730SMike Christie ddb_entry->fw_ddb_index, relogin_timer)); 265013483730SMike Christie 265113483730SMike Christie qla4xxx_login_flash_ddb(cls_sess); 265213483730SMike Christie } 265313483730SMike Christie 265413483730SMike Christie static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 265513483730SMike Christie { 265613483730SMike Christie struct iscsi_session *sess; 265713483730SMike Christie struct ddb_entry *ddb_entry; 265813483730SMike Christie struct scsi_qla_host *ha; 265913483730SMike Christie 266013483730SMike Christie sess = cls_sess->dd_data; 266113483730SMike Christie ddb_entry = sess->dd_data; 266213483730SMike Christie ha = ddb_entry->ha; 266313483730SMike Christie 266413483730SMike Christie if (!(ddb_entry->ddb_type == FLASH_DDB)) 266513483730SMike Christie return; 266613483730SMike Christie 266713483730SMike Christie if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 266813483730SMike Christie !iscsi_is_session_online(cls_sess)) { 266913483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 267013483730SMike Christie "relogin issued\n")); 267113483730SMike Christie qla4xxx_relogin_flash_ddb(cls_sess); 267213483730SMike Christie } 267313483730SMike Christie } 267413483730SMike Christie 2675f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 2676f4f5df23SVikas Chaudhary { 26771b46807eSLalit Chandivade if (ha->dpc_thread) 2678f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 2679f4f5df23SVikas Chaudhary } 2680f4f5df23SVikas Chaudhary 2681afaf5a2dSDavid Somayajulu /** 2682afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 2683afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 2684afaf5a2dSDavid Somayajulu * 2685afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 2686afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 2687afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 2688afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 2689afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 2690afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 2691afaf5a2dSDavid Somayajulu **/ 2692c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 2693afaf5a2dSDavid Somayajulu { 2694c4028958SDavid Howells struct scsi_qla_host *ha = 2695c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 2696477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 2697afaf5a2dSDavid Somayajulu 2698f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 2699f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 2700f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 2701afaf5a2dSDavid Somayajulu 2702afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 2703afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 27041b46807eSLalit Chandivade return; 2705afaf5a2dSDavid Somayajulu 27062232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 27072232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 27082232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 27091b46807eSLalit Chandivade return; 27102232be0dSLalit Chandivade } 27112232be0dSLalit Chandivade 2712f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2713f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 2714f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 2715f4f5df23SVikas Chaudhary qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 2716f4f5df23SVikas Chaudhary QLA82XX_DEV_FAILED); 2717f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 2718f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 2719f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 2720f4f5df23SVikas Chaudhary } 2721f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 2722f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 2723f4f5df23SVikas Chaudhary } 2724f4f5df23SVikas Chaudhary } 2725f4f5df23SVikas Chaudhary 2726f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 2727f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2728afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2729f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 2730f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 2731f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 2732f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2733f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2734f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2735f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2736f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 2737f4f5df23SVikas Chaudhary } 2738f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2739f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2740f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 2741afaf5a2dSDavid Somayajulu 2742477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2743afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 2744afaf5a2dSDavid Somayajulu 2745afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 2746afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 2747afaf5a2dSDavid Somayajulu if (--wait_time == 0) 2748afaf5a2dSDavid Somayajulu break; 2749afaf5a2dSDavid Somayajulu msleep(1000); 2750afaf5a2dSDavid Somayajulu } 2751afaf5a2dSDavid Somayajulu if (wait_time == 0) 2752afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 2753afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 2754afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 2755f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2756477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 2757477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2758f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 2759477ffb9dSDavid C Somayajulu } 2760477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2761477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 2762f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2763afaf5a2dSDavid Somayajulu } 2764afaf5a2dSDavid Somayajulu } 2765afaf5a2dSDavid Somayajulu 2766f4f5df23SVikas Chaudhary dpc_post_reset_ha: 2767afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 2768afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 2769afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 2770afaf5a2dSDavid Somayajulu 2771afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 2772afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 2773afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 2774afaf5a2dSDavid Somayajulu 277513483730SMike Christie /* ---- relogin device? --- */ 277613483730SMike Christie if (adapter_up(ha) && 277713483730SMike Christie test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 277813483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 277913483730SMike Christie } 278013483730SMike Christie 2781065aa1b4SVikas Chaudhary /* ---- link change? --- */ 2782065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 2783065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 2784065aa1b4SVikas Chaudhary /* ---- link down? --- */ 27852d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2786065aa1b4SVikas Chaudhary } else { 2787065aa1b4SVikas Chaudhary /* ---- link up? --- * 2788065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 2789065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 2790065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 2791065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 2792065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 279313483730SMike Christie if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 279413483730SMike Christie qla4xxx_build_ddb_list(ha, ha->is_reset); 279513483730SMike Christie iscsi_host_for_each_session(ha->host, 279613483730SMike Christie qla4xxx_login_flash_ddb); 279713483730SMike Christie } else 27982d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 2799065aa1b4SVikas Chaudhary } 2800065aa1b4SVikas Chaudhary } 2801afaf5a2dSDavid Somayajulu } 2802afaf5a2dSDavid Somayajulu 2803afaf5a2dSDavid Somayajulu /** 2804afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 2805afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 2806afaf5a2dSDavid Somayajulu **/ 2807afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 2808afaf5a2dSDavid Somayajulu { 2809afaf5a2dSDavid Somayajulu 2810afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 2811afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 2812f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2813afaf5a2dSDavid Somayajulu } 2814afaf5a2dSDavid Somayajulu 2815afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 2816afaf5a2dSDavid Somayajulu if (ha->timer_active) 2817afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 2818afaf5a2dSDavid Somayajulu 2819f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 2820f4f5df23SVikas Chaudhary if (ha->dpc_thread) 2821f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 2822f4f5df23SVikas Chaudhary 2823b3a271a9SManish Rangankar /* Kill the kernel thread for this host */ 2824b3a271a9SManish Rangankar if (ha->task_wq) 2825b3a271a9SManish Rangankar destroy_workqueue(ha->task_wq); 2826b3a271a9SManish Rangankar 2827f4f5df23SVikas Chaudhary /* Put firmware in known state */ 2828f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 2829f4f5df23SVikas Chaudhary 2830f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2831f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 2832f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 2833f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 2834f4f5df23SVikas Chaudhary } 2835f4f5df23SVikas Chaudhary 2836afaf5a2dSDavid Somayajulu /* Detach interrupts */ 2837afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 2838f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 2839afaf5a2dSDavid Somayajulu 2840bee4fe8eSDavid C Somayajulu /* free extra memory */ 2841bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 2842f4f5df23SVikas Chaudhary } 2843bee4fe8eSDavid C Somayajulu 2844f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 2845f4f5df23SVikas Chaudhary { 2846f4f5df23SVikas Chaudhary int status = 0; 2847f4f5df23SVikas Chaudhary uint8_t revision_id; 2848f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 2849f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 2850afaf5a2dSDavid Somayajulu 2851f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 2852f4f5df23SVikas Chaudhary if (status) { 2853f4f5df23SVikas Chaudhary printk(KERN_WARNING 2854f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 2855f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 2856f4f5df23SVikas Chaudhary goto iospace_error_exit; 2857f4f5df23SVikas Chaudhary } 2858f4f5df23SVikas Chaudhary 2859f4f5df23SVikas Chaudhary pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id); 2860f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 2861f4f5df23SVikas Chaudhary __func__, revision_id)); 2862f4f5df23SVikas Chaudhary ha->revision_id = revision_id; 2863f4f5df23SVikas Chaudhary 2864f4f5df23SVikas Chaudhary /* remap phys address */ 2865f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 2866f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 2867f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 2868f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 2869f4f5df23SVikas Chaudhary 2870f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 2871f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 2872f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 2873f4f5df23SVikas Chaudhary printk(KERN_ERR 2874f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 2875f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 2876f4f5df23SVikas Chaudhary goto iospace_error_exit; 2877f4f5df23SVikas Chaudhary } 2878f4f5df23SVikas Chaudhary 2879f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 2880f4f5df23SVikas Chaudhary 2881f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 2882f4f5df23SVikas Chaudhary ha->qla4_8xxx_reg = 2883f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 2884f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 2885f4f5df23SVikas Chaudhary 2886f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 2887f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 2888f4f5df23SVikas Chaudhary 28892657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 28902657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 2891f4f5df23SVikas Chaudhary 28922657c800SShyam Sundar return 0; 2893f4f5df23SVikas Chaudhary iospace_error_exit: 2894f4f5df23SVikas Chaudhary return -ENOMEM; 2895afaf5a2dSDavid Somayajulu } 2896afaf5a2dSDavid Somayajulu 2897afaf5a2dSDavid Somayajulu /*** 2898afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 2899afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 2900afaf5a2dSDavid Somayajulu * 2901afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 2902afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 2903afaf5a2dSDavid Somayajulu **/ 2904f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 2905afaf5a2dSDavid Somayajulu { 2906afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 2907afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 2908afaf5a2dSDavid Somayajulu 2909afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 2910afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 2911afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 2912afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 2913afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 2914c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2915afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 2916afaf5a2dSDavid Somayajulu pio = 0; 2917afaf5a2dSDavid Somayajulu } 2918afaf5a2dSDavid Somayajulu } else { 2919c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 2920afaf5a2dSDavid Somayajulu pio = 0; 2921afaf5a2dSDavid Somayajulu } 2922afaf5a2dSDavid Somayajulu 2923afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 2924afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 2925afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 2926afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 2927afaf5a2dSDavid Somayajulu 2928afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 2929c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2930afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 2931afaf5a2dSDavid Somayajulu 2932afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2933afaf5a2dSDavid Somayajulu } 2934c2660df3SVikas Chaudhary 2935afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 2936c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2937afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 2938afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2939afaf5a2dSDavid Somayajulu } 2940afaf5a2dSDavid Somayajulu 2941afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 2942c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2943afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 2944afaf5a2dSDavid Somayajulu 2945afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2946afaf5a2dSDavid Somayajulu } 2947afaf5a2dSDavid Somayajulu 2948afaf5a2dSDavid Somayajulu ha->pio_address = pio; 2949afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 2950afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 2951afaf5a2dSDavid Somayajulu if (!ha->reg) { 2952c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2953afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 2954afaf5a2dSDavid Somayajulu 2955afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2956afaf5a2dSDavid Somayajulu } 2957afaf5a2dSDavid Somayajulu 2958afaf5a2dSDavid Somayajulu return 0; 2959afaf5a2dSDavid Somayajulu 2960afaf5a2dSDavid Somayajulu iospace_error_exit: 2961afaf5a2dSDavid Somayajulu return -ENOMEM; 2962afaf5a2dSDavid Somayajulu } 2963afaf5a2dSDavid Somayajulu 2964f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 2965f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 2966f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 2967f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 2968f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 2969f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 2970f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 2971f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 2972f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 2973f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 2974f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 2975f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 2976f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 2977f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 2978f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 2979f4f5df23SVikas Chaudhary }; 2980f4f5df23SVikas Chaudhary 2981f4f5df23SVikas Chaudhary static struct isp_operations qla4_8xxx_isp_ops = { 2982f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 2983f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 2984f4f5df23SVikas Chaudhary .disable_intrs = qla4_8xxx_disable_intrs, 2985f4f5df23SVikas Chaudhary .enable_intrs = qla4_8xxx_enable_intrs, 2986f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 2987f4f5df23SVikas Chaudhary .intr_handler = qla4_8xxx_intr_handler, 2988f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4_8xxx_interrupt_service_routine, 2989f4f5df23SVikas Chaudhary .reset_chip = qla4_8xxx_isp_reset, 2990f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 2991f4f5df23SVikas Chaudhary .queue_iocb = qla4_8xxx_queue_iocb, 2992f4f5df23SVikas Chaudhary .complete_iocb = qla4_8xxx_complete_iocb, 2993f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out, 2994f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in, 2995f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 2996f4f5df23SVikas Chaudhary }; 2997f4f5df23SVikas Chaudhary 2998f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2999f4f5df23SVikas Chaudhary { 3000f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 3001f4f5df23SVikas Chaudhary } 3002f4f5df23SVikas Chaudhary 3003f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3004f4f5df23SVikas Chaudhary { 3005f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out)); 3006f4f5df23SVikas Chaudhary } 3007f4f5df23SVikas Chaudhary 3008f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3009f4f5df23SVikas Chaudhary { 3010f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 3011f4f5df23SVikas Chaudhary } 3012f4f5df23SVikas Chaudhary 3013f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3014f4f5df23SVikas Chaudhary { 3015f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in)); 3016f4f5df23SVikas Chaudhary } 3017f4f5df23SVikas Chaudhary 30182a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 30192a991c21SManish Rangankar { 30202a991c21SManish Rangankar struct scsi_qla_host *ha = data; 30212a991c21SManish Rangankar char *str = buf; 30222a991c21SManish Rangankar int rc; 30232a991c21SManish Rangankar 30242a991c21SManish Rangankar switch (type) { 30252a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 30262a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 30272a991c21SManish Rangankar break; 30282a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 30292a991c21SManish Rangankar rc = sprintf(str, "0\n"); 30302a991c21SManish Rangankar break; 30312a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 30322a991c21SManish Rangankar rc = sysfs_format_mac(str, ha->my_mac, 30332a991c21SManish Rangankar MAC_ADDR_LEN); 30342a991c21SManish Rangankar break; 30352a991c21SManish Rangankar default: 30362a991c21SManish Rangankar rc = -ENOSYS; 30372a991c21SManish Rangankar break; 30382a991c21SManish Rangankar } 30392a991c21SManish Rangankar return rc; 30402a991c21SManish Rangankar } 30412a991c21SManish Rangankar 3042587a1f16SAl Viro static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 30432a991c21SManish Rangankar { 30442a991c21SManish Rangankar int rc; 30452a991c21SManish Rangankar 30462a991c21SManish Rangankar switch (type) { 30472a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 30482a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 30492a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 30502a991c21SManish Rangankar rc = S_IRUGO; 30512a991c21SManish Rangankar break; 30522a991c21SManish Rangankar default: 30532a991c21SManish Rangankar rc = 0; 30542a991c21SManish Rangankar break; 30552a991c21SManish Rangankar } 30562a991c21SManish Rangankar return rc; 30572a991c21SManish Rangankar } 30582a991c21SManish Rangankar 30592a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 30602a991c21SManish Rangankar { 30612a991c21SManish Rangankar struct scsi_qla_host *ha = data; 30622a991c21SManish Rangankar char *str = buf; 30632a991c21SManish Rangankar int rc; 30642a991c21SManish Rangankar 30652a991c21SManish Rangankar switch (type) { 30662a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 30672a991c21SManish Rangankar rc = sprintf(str, "%s\n", ha->name_string); 30682a991c21SManish Rangankar break; 30692a991c21SManish Rangankar default: 30702a991c21SManish Rangankar rc = -ENOSYS; 30712a991c21SManish Rangankar break; 30722a991c21SManish Rangankar } 30732a991c21SManish Rangankar return rc; 30742a991c21SManish Rangankar } 30752a991c21SManish Rangankar 3076587a1f16SAl Viro static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 30772a991c21SManish Rangankar { 30782a991c21SManish Rangankar int rc; 30792a991c21SManish Rangankar 30802a991c21SManish Rangankar switch (type) { 30812a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 30822a991c21SManish Rangankar rc = S_IRUGO; 30832a991c21SManish Rangankar break; 30842a991c21SManish Rangankar default: 30852a991c21SManish Rangankar rc = 0; 30862a991c21SManish Rangankar break; 30872a991c21SManish Rangankar } 30882a991c21SManish Rangankar return rc; 30892a991c21SManish Rangankar } 30902a991c21SManish Rangankar 30912a991c21SManish Rangankar static ssize_t 30922a991c21SManish Rangankar qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 30932a991c21SManish Rangankar char *buf) 30942a991c21SManish Rangankar { 30952a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 30962a991c21SManish Rangankar char *str = buf; 30972a991c21SManish Rangankar int rc; 30982a991c21SManish Rangankar 30992a991c21SManish Rangankar switch (type) { 31002a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 31012a991c21SManish Rangankar rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 31022a991c21SManish Rangankar break; 31032a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 31042a991c21SManish Rangankar if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 31052a991c21SManish Rangankar rc = sprintf(buf, "%pI4\n", 31062a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 31072a991c21SManish Rangankar else 31082a991c21SManish Rangankar rc = sprintf(str, "%pI6\n", 31092a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 31102a991c21SManish Rangankar break; 31112a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 31122a991c21SManish Rangankar rc = sprintf(str, "%d\n", boot_conn->dest_port); 31132a991c21SManish Rangankar break; 31142a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 31152a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 31162a991c21SManish Rangankar boot_conn->chap.target_chap_name_length, 31172a991c21SManish Rangankar (char *)&boot_conn->chap.target_chap_name); 31182a991c21SManish Rangankar break; 31192a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 31202a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 31212a991c21SManish Rangankar boot_conn->chap.target_secret_length, 31222a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret); 31232a991c21SManish Rangankar break; 31242a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 31252a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 31262a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length, 31272a991c21SManish Rangankar (char *)&boot_conn->chap.intr_chap_name); 31282a991c21SManish Rangankar break; 31292a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 31302a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 31312a991c21SManish Rangankar boot_conn->chap.intr_secret_length, 31322a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret); 31332a991c21SManish Rangankar break; 31342a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 31352a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 31362a991c21SManish Rangankar break; 31372a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 31382a991c21SManish Rangankar rc = sprintf(str, "0\n"); 31392a991c21SManish Rangankar break; 31402a991c21SManish Rangankar default: 31412a991c21SManish Rangankar rc = -ENOSYS; 31422a991c21SManish Rangankar break; 31432a991c21SManish Rangankar } 31442a991c21SManish Rangankar return rc; 31452a991c21SManish Rangankar } 31462a991c21SManish Rangankar 31472a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 31482a991c21SManish Rangankar { 31492a991c21SManish Rangankar struct scsi_qla_host *ha = data; 31502a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 31512a991c21SManish Rangankar 31522a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 31532a991c21SManish Rangankar } 31542a991c21SManish Rangankar 31552a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 31562a991c21SManish Rangankar { 31572a991c21SManish Rangankar struct scsi_qla_host *ha = data; 31582a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 31592a991c21SManish Rangankar 31602a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 31612a991c21SManish Rangankar } 31622a991c21SManish Rangankar 3163587a1f16SAl Viro static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 31642a991c21SManish Rangankar { 31652a991c21SManish Rangankar int rc; 31662a991c21SManish Rangankar 31672a991c21SManish Rangankar switch (type) { 31682a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 31692a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 31702a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 31712a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 31722a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 31732a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 31742a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 31752a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 31762a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 31772a991c21SManish Rangankar rc = S_IRUGO; 31782a991c21SManish Rangankar break; 31792a991c21SManish Rangankar default: 31802a991c21SManish Rangankar rc = 0; 31812a991c21SManish Rangankar break; 31822a991c21SManish Rangankar } 31832a991c21SManish Rangankar return rc; 31842a991c21SManish Rangankar } 31852a991c21SManish Rangankar 31862a991c21SManish Rangankar static void qla4xxx_boot_release(void *data) 31872a991c21SManish Rangankar { 31882a991c21SManish Rangankar struct scsi_qla_host *ha = data; 31892a991c21SManish Rangankar 31902a991c21SManish Rangankar scsi_host_put(ha->host); 31912a991c21SManish Rangankar } 31922a991c21SManish Rangankar 31932a991c21SManish Rangankar static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 31942a991c21SManish Rangankar { 31952a991c21SManish Rangankar dma_addr_t buf_dma; 31962a991c21SManish Rangankar uint32_t addr, pri_addr, sec_addr; 31972a991c21SManish Rangankar uint32_t offset; 31982a991c21SManish Rangankar uint16_t func_num; 31992a991c21SManish Rangankar uint8_t val; 32002a991c21SManish Rangankar uint8_t *buf = NULL; 32012a991c21SManish Rangankar size_t size = 13 * sizeof(uint8_t); 32022a991c21SManish Rangankar int ret = QLA_SUCCESS; 32032a991c21SManish Rangankar 32042a991c21SManish Rangankar func_num = PCI_FUNC(ha->pdev->devfn); 32052a991c21SManish Rangankar 32060d5b36b8SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 32070d5b36b8SManish Rangankar __func__, ha->pdev->device, func_num); 32082a991c21SManish Rangankar 32090d5b36b8SManish Rangankar if (is_qla40XX(ha)) { 32102a991c21SManish Rangankar if (func_num == 1) { 32112a991c21SManish Rangankar addr = NVRAM_PORT0_BOOT_MODE; 32122a991c21SManish Rangankar pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 32132a991c21SManish Rangankar sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 32142a991c21SManish Rangankar } else if (func_num == 3) { 32152a991c21SManish Rangankar addr = NVRAM_PORT1_BOOT_MODE; 32162a991c21SManish Rangankar pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 32172a991c21SManish Rangankar sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 32182a991c21SManish Rangankar } else { 32192a991c21SManish Rangankar ret = QLA_ERROR; 32202a991c21SManish Rangankar goto exit_boot_info; 32212a991c21SManish Rangankar } 32222a991c21SManish Rangankar 32232a991c21SManish Rangankar /* Check Boot Mode */ 32242a991c21SManish Rangankar val = rd_nvram_byte(ha, addr); 32252a991c21SManish Rangankar if (!(val & 0x07)) { 32262a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 32272a991c21SManish Rangankar "%s: Failed Boot options : 0x%x\n", 32282a991c21SManish Rangankar __func__, val)); 32292a991c21SManish Rangankar ret = QLA_ERROR; 32302a991c21SManish Rangankar goto exit_boot_info; 32312a991c21SManish Rangankar } 32322a991c21SManish Rangankar 32332a991c21SManish Rangankar /* get primary valid target index */ 32342a991c21SManish Rangankar val = rd_nvram_byte(ha, pri_addr); 32352a991c21SManish Rangankar if (val & BIT_7) 32362a991c21SManish Rangankar ddb_index[0] = (val & 0x7f); 32372a991c21SManish Rangankar 32382a991c21SManish Rangankar /* get secondary valid target index */ 32392a991c21SManish Rangankar val = rd_nvram_byte(ha, sec_addr); 32402a991c21SManish Rangankar if (val & BIT_7) 32412a991c21SManish Rangankar ddb_index[1] = (val & 0x7f); 32422a991c21SManish Rangankar 32432a991c21SManish Rangankar } else if (is_qla8022(ha)) { 32442a991c21SManish Rangankar buf = dma_alloc_coherent(&ha->pdev->dev, size, 32452a991c21SManish Rangankar &buf_dma, GFP_KERNEL); 32462a991c21SManish Rangankar if (!buf) { 32472a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 32482a991c21SManish Rangankar "%s: Unable to allocate dma buffer\n", 32492a991c21SManish Rangankar __func__)); 32502a991c21SManish Rangankar ret = QLA_ERROR; 32512a991c21SManish Rangankar goto exit_boot_info; 32522a991c21SManish Rangankar } 32532a991c21SManish Rangankar 32542a991c21SManish Rangankar if (ha->port_num == 0) 32552a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT0; 32562a991c21SManish Rangankar else if (ha->port_num == 1) 32572a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT1; 32582a991c21SManish Rangankar else { 32592a991c21SManish Rangankar ret = QLA_ERROR; 32602a991c21SManish Rangankar goto exit_boot_info_free; 32612a991c21SManish Rangankar } 32622a991c21SManish Rangankar addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 32632a991c21SManish Rangankar offset; 32642a991c21SManish Rangankar if (qla4xxx_get_flash(ha, buf_dma, addr, 32652a991c21SManish Rangankar 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 32662a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 32672a991c21SManish Rangankar "failed\n", ha->host_no, __func__)); 32682a991c21SManish Rangankar ret = QLA_ERROR; 32692a991c21SManish Rangankar goto exit_boot_info_free; 32702a991c21SManish Rangankar } 32712a991c21SManish Rangankar /* Check Boot Mode */ 32722a991c21SManish Rangankar if (!(buf[1] & 0x07)) { 32732a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 32742a991c21SManish Rangankar "Failed: Boot options : 0x%x\n", 32752a991c21SManish Rangankar buf[1])); 32762a991c21SManish Rangankar ret = QLA_ERROR; 32772a991c21SManish Rangankar goto exit_boot_info_free; 32782a991c21SManish Rangankar } 32792a991c21SManish Rangankar 32802a991c21SManish Rangankar /* get primary valid target index */ 32812a991c21SManish Rangankar if (buf[2] & BIT_7) 32822a991c21SManish Rangankar ddb_index[0] = buf[2] & 0x7f; 32832a991c21SManish Rangankar 32842a991c21SManish Rangankar /* get secondary valid target index */ 32852a991c21SManish Rangankar if (buf[11] & BIT_7) 32862a991c21SManish Rangankar ddb_index[1] = buf[11] & 0x7f; 32872a991c21SManish Rangankar } else { 32882a991c21SManish Rangankar ret = QLA_ERROR; 32892a991c21SManish Rangankar goto exit_boot_info; 32902a991c21SManish Rangankar } 32912a991c21SManish Rangankar 32922a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 32932a991c21SManish Rangankar " target ID %d\n", __func__, ddb_index[0], 32942a991c21SManish Rangankar ddb_index[1])); 32952a991c21SManish Rangankar 329613483730SMike Christie ha->pri_ddb_idx = ddb_index[0]; 329713483730SMike Christie ha->sec_ddb_idx = ddb_index[1]; 329813483730SMike Christie 32992a991c21SManish Rangankar exit_boot_info_free: 33002a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 33012a991c21SManish Rangankar exit_boot_info: 33022a991c21SManish Rangankar return ret; 33032a991c21SManish Rangankar } 33042a991c21SManish Rangankar 330528deb45cSLalit Chandivade /** 330628deb45cSLalit Chandivade * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 330728deb45cSLalit Chandivade * @ha: pointer to adapter structure 330828deb45cSLalit Chandivade * @username: CHAP username to be returned 330928deb45cSLalit Chandivade * @password: CHAP password to be returned 331028deb45cSLalit Chandivade * 331128deb45cSLalit Chandivade * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 331228deb45cSLalit Chandivade * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 331328deb45cSLalit Chandivade * So from the CHAP cache find the first BIDI CHAP entry and set it 331428deb45cSLalit Chandivade * to the boot record in sysfs. 331528deb45cSLalit Chandivade **/ 331628deb45cSLalit Chandivade static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 331728deb45cSLalit Chandivade char *password) 331828deb45cSLalit Chandivade { 331928deb45cSLalit Chandivade int i, ret = -EINVAL; 332028deb45cSLalit Chandivade int max_chap_entries = 0; 332128deb45cSLalit Chandivade struct ql4_chap_table *chap_table; 332228deb45cSLalit Chandivade 332328deb45cSLalit Chandivade if (is_qla8022(ha)) 332428deb45cSLalit Chandivade max_chap_entries = (ha->hw.flt_chap_size / 2) / 332528deb45cSLalit Chandivade sizeof(struct ql4_chap_table); 332628deb45cSLalit Chandivade else 332728deb45cSLalit Chandivade max_chap_entries = MAX_CHAP_ENTRIES_40XX; 332828deb45cSLalit Chandivade 332928deb45cSLalit Chandivade if (!ha->chap_list) { 333028deb45cSLalit Chandivade ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 333128deb45cSLalit Chandivade return ret; 333228deb45cSLalit Chandivade } 333328deb45cSLalit Chandivade 333428deb45cSLalit Chandivade mutex_lock(&ha->chap_sem); 333528deb45cSLalit Chandivade for (i = 0; i < max_chap_entries; i++) { 333628deb45cSLalit Chandivade chap_table = (struct ql4_chap_table *)ha->chap_list + i; 333728deb45cSLalit Chandivade if (chap_table->cookie != 333828deb45cSLalit Chandivade __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 333928deb45cSLalit Chandivade continue; 334028deb45cSLalit Chandivade } 334128deb45cSLalit Chandivade 334228deb45cSLalit Chandivade if (chap_table->flags & BIT_7) /* local */ 334328deb45cSLalit Chandivade continue; 334428deb45cSLalit Chandivade 334528deb45cSLalit Chandivade if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 334628deb45cSLalit Chandivade continue; 334728deb45cSLalit Chandivade 334828deb45cSLalit Chandivade strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 334928deb45cSLalit Chandivade strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 335028deb45cSLalit Chandivade ret = 0; 335128deb45cSLalit Chandivade break; 335228deb45cSLalit Chandivade } 335328deb45cSLalit Chandivade mutex_unlock(&ha->chap_sem); 335428deb45cSLalit Chandivade 335528deb45cSLalit Chandivade return ret; 335628deb45cSLalit Chandivade } 335728deb45cSLalit Chandivade 335828deb45cSLalit Chandivade 33592a991c21SManish Rangankar static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 33602a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess, 33612a991c21SManish Rangankar uint16_t ddb_index) 33622a991c21SManish Rangankar { 33632a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 33642a991c21SManish Rangankar struct dev_db_entry *fw_ddb_entry; 33652a991c21SManish Rangankar dma_addr_t fw_ddb_entry_dma; 33662a991c21SManish Rangankar uint16_t idx; 33672a991c21SManish Rangankar uint16_t options; 33682a991c21SManish Rangankar int ret = QLA_SUCCESS; 33692a991c21SManish Rangankar 33702a991c21SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 33712a991c21SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 33722a991c21SManish Rangankar if (!fw_ddb_entry) { 33732a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 33742a991c21SManish Rangankar "%s: Unable to allocate dma buffer.\n", 33752a991c21SManish Rangankar __func__)); 33762a991c21SManish Rangankar ret = QLA_ERROR; 33772a991c21SManish Rangankar return ret; 33782a991c21SManish Rangankar } 33792a991c21SManish Rangankar 33802a991c21SManish Rangankar if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 33812a991c21SManish Rangankar fw_ddb_entry_dma, ddb_index)) { 33822a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 33832a991c21SManish Rangankar "%s: Flash DDB read Failed\n", __func__)); 33842a991c21SManish Rangankar ret = QLA_ERROR; 33852a991c21SManish Rangankar goto exit_boot_target; 33862a991c21SManish Rangankar } 33872a991c21SManish Rangankar 33882a991c21SManish Rangankar /* Update target name and IP from DDB */ 33892a991c21SManish Rangankar memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 33902a991c21SManish Rangankar min(sizeof(boot_sess->target_name), 33912a991c21SManish Rangankar sizeof(fw_ddb_entry->iscsi_name))); 33922a991c21SManish Rangankar 33932a991c21SManish Rangankar options = le16_to_cpu(fw_ddb_entry->options); 33942a991c21SManish Rangankar if (options & DDB_OPT_IPV6_DEVICE) { 33952a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 33962a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 33972a991c21SManish Rangankar } else { 33982a991c21SManish Rangankar boot_conn->dest_ipaddr.ip_type = 0x1; 33992a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 34002a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 34012a991c21SManish Rangankar } 34022a991c21SManish Rangankar 34032a991c21SManish Rangankar boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 34042a991c21SManish Rangankar 34052a991c21SManish Rangankar /* update chap information */ 34062a991c21SManish Rangankar idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 34072a991c21SManish Rangankar 34082a991c21SManish Rangankar if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 34092a991c21SManish Rangankar 34102a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 34112a991c21SManish Rangankar 34122a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 34132a991c21SManish Rangankar target_chap_name, 34142a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret, 34152a991c21SManish Rangankar idx); 34162a991c21SManish Rangankar if (ret) { 34172a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 34182a991c21SManish Rangankar ret = QLA_ERROR; 34192a991c21SManish Rangankar goto exit_boot_target; 34202a991c21SManish Rangankar } 34212a991c21SManish Rangankar 34222a991c21SManish Rangankar boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 34232a991c21SManish Rangankar boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 34242a991c21SManish Rangankar } 34252a991c21SManish Rangankar 34262a991c21SManish Rangankar if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 34272a991c21SManish Rangankar 34282a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 34292a991c21SManish Rangankar 343028deb45cSLalit Chandivade ret = qla4xxx_get_bidi_chap(ha, 343128deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_chap_name, 343228deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_secret); 343328deb45cSLalit Chandivade 34342a991c21SManish Rangankar if (ret) { 34352a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 34362a991c21SManish Rangankar ret = QLA_ERROR; 34372a991c21SManish Rangankar goto exit_boot_target; 34382a991c21SManish Rangankar } 34392a991c21SManish Rangankar 34402a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 34412a991c21SManish Rangankar boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 34422a991c21SManish Rangankar } 34432a991c21SManish Rangankar 34442a991c21SManish Rangankar exit_boot_target: 34452a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 34462a991c21SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 34472a991c21SManish Rangankar return ret; 34482a991c21SManish Rangankar } 34492a991c21SManish Rangankar 34502a991c21SManish Rangankar static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 34512a991c21SManish Rangankar { 34522a991c21SManish Rangankar uint16_t ddb_index[2]; 34538de5b958SLalit Chandivade int ret = QLA_ERROR; 34548de5b958SLalit Chandivade int rval; 34552a991c21SManish Rangankar 34562a991c21SManish Rangankar memset(ddb_index, 0, sizeof(ddb_index)); 34578de5b958SLalit Chandivade ddb_index[0] = 0xffff; 34588de5b958SLalit Chandivade ddb_index[1] = 0xffff; 34592a991c21SManish Rangankar ret = get_fw_boot_info(ha, ddb_index); 34602a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 34612a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 34622a991c21SManish Rangankar "%s: Failed to set boot info.\n", __func__)); 34632a991c21SManish Rangankar return ret; 34642a991c21SManish Rangankar } 34652a991c21SManish Rangankar 346613483730SMike Christie if (ql4xdisablesysfsboot) 346713483730SMike Christie return QLA_SUCCESS; 346813483730SMike Christie 34698de5b958SLalit Chandivade if (ddb_index[0] == 0xffff) 34708de5b958SLalit Chandivade goto sec_target; 34718de5b958SLalit Chandivade 34728de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 34732a991c21SManish Rangankar ddb_index[0]); 34748de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 34752a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 34762a991c21SManish Rangankar "primary target\n", __func__)); 34778de5b958SLalit Chandivade } else 34788de5b958SLalit Chandivade ret = QLA_SUCCESS; 34792a991c21SManish Rangankar 34808de5b958SLalit Chandivade sec_target: 34818de5b958SLalit Chandivade if (ddb_index[1] == 0xffff) 34828de5b958SLalit Chandivade goto exit_get_boot_info; 34838de5b958SLalit Chandivade 34848de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 34852a991c21SManish Rangankar ddb_index[1]); 34868de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 34872a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 34882a991c21SManish Rangankar "secondary target\n", __func__)); 34898de5b958SLalit Chandivade } else 34908de5b958SLalit Chandivade ret = QLA_SUCCESS; 34918de5b958SLalit Chandivade 34928de5b958SLalit Chandivade exit_get_boot_info: 34932a991c21SManish Rangankar return ret; 34942a991c21SManish Rangankar } 34952a991c21SManish Rangankar 34962a991c21SManish Rangankar static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 34972a991c21SManish Rangankar { 34982a991c21SManish Rangankar struct iscsi_boot_kobj *boot_kobj; 34992a991c21SManish Rangankar 35002a991c21SManish Rangankar if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 350113483730SMike Christie return QLA_ERROR; 350213483730SMike Christie 350313483730SMike Christie if (ql4xdisablesysfsboot) { 350413483730SMike Christie ql4_printk(KERN_INFO, ha, 350513483730SMike Christie "%s: syfsboot disabled - driver will trigger login" 350613483730SMike Christie "and publish session for discovery .\n", __func__); 350713483730SMike Christie return QLA_SUCCESS; 350813483730SMike Christie } 350913483730SMike Christie 35102a991c21SManish Rangankar 35112a991c21SManish Rangankar ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 35122a991c21SManish Rangankar if (!ha->boot_kset) 35132a991c21SManish Rangankar goto kset_free; 35142a991c21SManish Rangankar 35152a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 35162a991c21SManish Rangankar goto kset_free; 35172a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 35182a991c21SManish Rangankar qla4xxx_show_boot_tgt_pri_info, 35192a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 35202a991c21SManish Rangankar qla4xxx_boot_release); 35212a991c21SManish Rangankar if (!boot_kobj) 35222a991c21SManish Rangankar goto put_host; 35232a991c21SManish Rangankar 35242a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 35252a991c21SManish Rangankar goto kset_free; 35262a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 35272a991c21SManish Rangankar qla4xxx_show_boot_tgt_sec_info, 35282a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 35292a991c21SManish Rangankar qla4xxx_boot_release); 35302a991c21SManish Rangankar if (!boot_kobj) 35312a991c21SManish Rangankar goto put_host; 35322a991c21SManish Rangankar 35332a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 35342a991c21SManish Rangankar goto kset_free; 35352a991c21SManish Rangankar boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 35362a991c21SManish Rangankar qla4xxx_show_boot_ini_info, 35372a991c21SManish Rangankar qla4xxx_ini_get_attr_visibility, 35382a991c21SManish Rangankar qla4xxx_boot_release); 35392a991c21SManish Rangankar if (!boot_kobj) 35402a991c21SManish Rangankar goto put_host; 35412a991c21SManish Rangankar 35422a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 35432a991c21SManish Rangankar goto kset_free; 35442a991c21SManish Rangankar boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 35452a991c21SManish Rangankar qla4xxx_show_boot_eth_info, 35462a991c21SManish Rangankar qla4xxx_eth_get_attr_visibility, 35472a991c21SManish Rangankar qla4xxx_boot_release); 35482a991c21SManish Rangankar if (!boot_kobj) 35492a991c21SManish Rangankar goto put_host; 35502a991c21SManish Rangankar 355113483730SMike Christie return QLA_SUCCESS; 35522a991c21SManish Rangankar 35532a991c21SManish Rangankar put_host: 35542a991c21SManish Rangankar scsi_host_put(ha->host); 35552a991c21SManish Rangankar kset_free: 35562a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 35572a991c21SManish Rangankar return -ENOMEM; 35582a991c21SManish Rangankar } 35592a991c21SManish Rangankar 35604549415aSLalit Chandivade 35614549415aSLalit Chandivade /** 35624549415aSLalit Chandivade * qla4xxx_create chap_list - Create CHAP list from FLASH 35634549415aSLalit Chandivade * @ha: pointer to adapter structure 35644549415aSLalit Chandivade * 35654549415aSLalit Chandivade * Read flash and make a list of CHAP entries, during login when a CHAP entry 35664549415aSLalit Chandivade * is received, it will be checked in this list. If entry exist then the CHAP 35674549415aSLalit Chandivade * entry index is set in the DDB. If CHAP entry does not exist in this list 35684549415aSLalit Chandivade * then a new entry is added in FLASH in CHAP table and the index obtained is 35694549415aSLalit Chandivade * used in the DDB. 35704549415aSLalit Chandivade **/ 35714549415aSLalit Chandivade static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 35724549415aSLalit Chandivade { 35734549415aSLalit Chandivade int rval = 0; 35744549415aSLalit Chandivade uint8_t *chap_flash_data = NULL; 35754549415aSLalit Chandivade uint32_t offset; 35764549415aSLalit Chandivade dma_addr_t chap_dma; 35774549415aSLalit Chandivade uint32_t chap_size = 0; 35784549415aSLalit Chandivade 35794549415aSLalit Chandivade if (is_qla40XX(ha)) 35804549415aSLalit Chandivade chap_size = MAX_CHAP_ENTRIES_40XX * 35814549415aSLalit Chandivade sizeof(struct ql4_chap_table); 35824549415aSLalit Chandivade else /* Single region contains CHAP info for both 35834549415aSLalit Chandivade * ports which is divided into half for each port. 35844549415aSLalit Chandivade */ 35854549415aSLalit Chandivade chap_size = ha->hw.flt_chap_size / 2; 35864549415aSLalit Chandivade 35874549415aSLalit Chandivade chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 35884549415aSLalit Chandivade &chap_dma, GFP_KERNEL); 35894549415aSLalit Chandivade if (!chap_flash_data) { 35904549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 35914549415aSLalit Chandivade return; 35924549415aSLalit Chandivade } 35934549415aSLalit Chandivade if (is_qla40XX(ha)) 35944549415aSLalit Chandivade offset = FLASH_CHAP_OFFSET; 35954549415aSLalit Chandivade else { 35964549415aSLalit Chandivade offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 35974549415aSLalit Chandivade if (ha->port_num == 1) 35984549415aSLalit Chandivade offset += chap_size; 35994549415aSLalit Chandivade } 36004549415aSLalit Chandivade 36014549415aSLalit Chandivade rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 36024549415aSLalit Chandivade if (rval != QLA_SUCCESS) 36034549415aSLalit Chandivade goto exit_chap_list; 36044549415aSLalit Chandivade 36054549415aSLalit Chandivade if (ha->chap_list == NULL) 36064549415aSLalit Chandivade ha->chap_list = vmalloc(chap_size); 36074549415aSLalit Chandivade if (ha->chap_list == NULL) { 36084549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 36094549415aSLalit Chandivade goto exit_chap_list; 36104549415aSLalit Chandivade } 36114549415aSLalit Chandivade 36124549415aSLalit Chandivade memcpy(ha->chap_list, chap_flash_data, chap_size); 36134549415aSLalit Chandivade 36144549415aSLalit Chandivade exit_chap_list: 36154549415aSLalit Chandivade dma_free_coherent(&ha->pdev->dev, chap_size, 36164549415aSLalit Chandivade chap_flash_data, chap_dma); 361713483730SMike Christie } 361813483730SMike Christie 361913483730SMike Christie static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 362013483730SMike Christie struct ql4_tuple_ddb *tddb) 362113483730SMike Christie { 362213483730SMike Christie struct scsi_qla_host *ha; 362313483730SMike Christie struct iscsi_cls_session *cls_sess; 362413483730SMike Christie struct iscsi_cls_conn *cls_conn; 362513483730SMike Christie struct iscsi_session *sess; 362613483730SMike Christie struct iscsi_conn *conn; 362713483730SMike Christie 362813483730SMike Christie DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 362913483730SMike Christie ha = ddb_entry->ha; 363013483730SMike Christie cls_sess = ddb_entry->sess; 363113483730SMike Christie sess = cls_sess->dd_data; 363213483730SMike Christie cls_conn = ddb_entry->conn; 363313483730SMike Christie conn = cls_conn->dd_data; 363413483730SMike Christie 363513483730SMike Christie tddb->tpgt = sess->tpgt; 363613483730SMike Christie tddb->port = conn->persistent_port; 363713483730SMike Christie strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 363813483730SMike Christie strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 363913483730SMike Christie } 364013483730SMike Christie 364113483730SMike Christie static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 364213483730SMike Christie struct ql4_tuple_ddb *tddb) 364313483730SMike Christie { 364413483730SMike Christie uint16_t options = 0; 364513483730SMike Christie 364613483730SMike Christie tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 364713483730SMike Christie memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 364813483730SMike Christie min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 364913483730SMike Christie 365013483730SMike Christie options = le16_to_cpu(fw_ddb_entry->options); 365113483730SMike Christie if (options & DDB_OPT_IPV6_DEVICE) 365213483730SMike Christie sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 365313483730SMike Christie else 365413483730SMike Christie sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 365513483730SMike Christie 365613483730SMike Christie tddb->port = le16_to_cpu(fw_ddb_entry->port); 365713483730SMike Christie } 365813483730SMike Christie 365913483730SMike Christie static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 366013483730SMike Christie struct ql4_tuple_ddb *old_tddb, 366113483730SMike Christie struct ql4_tuple_ddb *new_tddb) 366213483730SMike Christie { 366313483730SMike Christie if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 366413483730SMike Christie return QLA_ERROR; 366513483730SMike Christie 366613483730SMike Christie if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 366713483730SMike Christie return QLA_ERROR; 366813483730SMike Christie 366913483730SMike Christie if (old_tddb->port != new_tddb->port) 367013483730SMike Christie return QLA_ERROR; 367113483730SMike Christie 367213483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 367313483730SMike Christie "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 367413483730SMike Christie old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 367513483730SMike Christie old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 367613483730SMike Christie new_tddb->ip_addr, new_tddb->iscsi_name)); 367713483730SMike Christie 367813483730SMike Christie return QLA_SUCCESS; 367913483730SMike Christie } 368013483730SMike Christie 368113483730SMike Christie static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 368213483730SMike Christie struct dev_db_entry *fw_ddb_entry) 368313483730SMike Christie { 368413483730SMike Christie struct ddb_entry *ddb_entry; 368513483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 368613483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 368713483730SMike Christie int idx; 368813483730SMike Christie int ret = QLA_ERROR; 368913483730SMike Christie 369013483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 369113483730SMike Christie if (!fw_tddb) { 369213483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 369313483730SMike Christie "Memory Allocation failed.\n")); 369413483730SMike Christie ret = QLA_SUCCESS; 369513483730SMike Christie goto exit_check; 369613483730SMike Christie } 369713483730SMike Christie 369813483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 369913483730SMike Christie if (!tmp_tddb) { 370013483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 370113483730SMike Christie "Memory Allocation failed.\n")); 370213483730SMike Christie ret = QLA_SUCCESS; 370313483730SMike Christie goto exit_check; 370413483730SMike Christie } 370513483730SMike Christie 370613483730SMike Christie qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); 370713483730SMike Christie 370813483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 370913483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 371013483730SMike Christie if (ddb_entry == NULL) 371113483730SMike Christie continue; 371213483730SMike Christie 371313483730SMike Christie qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 371413483730SMike Christie if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) { 371513483730SMike Christie ret = QLA_SUCCESS; /* found */ 371613483730SMike Christie goto exit_check; 371713483730SMike Christie } 371813483730SMike Christie } 371913483730SMike Christie 372013483730SMike Christie exit_check: 372113483730SMike Christie if (fw_tddb) 372213483730SMike Christie vfree(fw_tddb); 372313483730SMike Christie if (tmp_tddb) 372413483730SMike Christie vfree(tmp_tddb); 372513483730SMike Christie return ret; 372613483730SMike Christie } 372713483730SMike Christie 372813483730SMike Christie static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 372913483730SMike Christie struct list_head *list_nt, 373013483730SMike Christie struct dev_db_entry *fw_ddb_entry) 373113483730SMike Christie { 373213483730SMike Christie struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 373313483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 373413483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 373513483730SMike Christie int ret = QLA_ERROR; 373613483730SMike Christie 373713483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 373813483730SMike Christie if (!fw_tddb) { 373913483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 374013483730SMike Christie "Memory Allocation failed.\n")); 374113483730SMike Christie ret = QLA_SUCCESS; 374213483730SMike Christie goto exit_check; 374313483730SMike Christie } 374413483730SMike Christie 374513483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 374613483730SMike Christie if (!tmp_tddb) { 374713483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 374813483730SMike Christie "Memory Allocation failed.\n")); 374913483730SMike Christie ret = QLA_SUCCESS; 375013483730SMike Christie goto exit_check; 375113483730SMike Christie } 375213483730SMike Christie 375313483730SMike Christie qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); 375413483730SMike Christie 375513483730SMike Christie list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 375613483730SMike Christie qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb); 375713483730SMike Christie if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) { 375813483730SMike Christie ret = QLA_SUCCESS; /* found */ 375913483730SMike Christie goto exit_check; 376013483730SMike Christie } 376113483730SMike Christie } 376213483730SMike Christie 376313483730SMike Christie exit_check: 376413483730SMike Christie if (fw_tddb) 376513483730SMike Christie vfree(fw_tddb); 376613483730SMike Christie if (tmp_tddb) 376713483730SMike Christie vfree(tmp_tddb); 376813483730SMike Christie return ret; 376913483730SMike Christie } 377013483730SMike Christie 377113483730SMike Christie static void qla4xxx_free_nt_list(struct list_head *list_nt) 377213483730SMike Christie { 377313483730SMike Christie struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 377413483730SMike Christie 377513483730SMike Christie /* Free up the normaltargets list */ 377613483730SMike Christie list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 377713483730SMike Christie list_del_init(&nt_ddb_idx->list); 377813483730SMike Christie vfree(nt_ddb_idx); 377913483730SMike Christie } 378013483730SMike Christie 378113483730SMike Christie } 378213483730SMike Christie 378313483730SMike Christie static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 378413483730SMike Christie struct dev_db_entry *fw_ddb_entry) 378513483730SMike Christie { 378613483730SMike Christie struct iscsi_endpoint *ep; 378713483730SMike Christie struct sockaddr_in *addr; 378813483730SMike Christie struct sockaddr_in6 *addr6; 378913483730SMike Christie struct sockaddr *dst_addr; 379013483730SMike Christie char *ip; 379113483730SMike Christie 379213483730SMike Christie /* TODO: need to destroy on unload iscsi_endpoint*/ 379313483730SMike Christie dst_addr = vmalloc(sizeof(*dst_addr)); 379413483730SMike Christie if (!dst_addr) 379513483730SMike Christie return NULL; 379613483730SMike Christie 379713483730SMike Christie if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 379813483730SMike Christie dst_addr->sa_family = AF_INET6; 379913483730SMike Christie addr6 = (struct sockaddr_in6 *)dst_addr; 380013483730SMike Christie ip = (char *)&addr6->sin6_addr; 380113483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 380213483730SMike Christie addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 380313483730SMike Christie 380413483730SMike Christie } else { 380513483730SMike Christie dst_addr->sa_family = AF_INET; 380613483730SMike Christie addr = (struct sockaddr_in *)dst_addr; 380713483730SMike Christie ip = (char *)&addr->sin_addr; 380813483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 380913483730SMike Christie addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 381013483730SMike Christie } 381113483730SMike Christie 381213483730SMike Christie ep = qla4xxx_ep_connect(ha->host, dst_addr, 0); 381313483730SMike Christie vfree(dst_addr); 381413483730SMike Christie return ep; 381513483730SMike Christie } 381613483730SMike Christie 381713483730SMike Christie static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 381813483730SMike Christie { 381913483730SMike Christie if (ql4xdisablesysfsboot) 382013483730SMike Christie return QLA_SUCCESS; 382113483730SMike Christie if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 382213483730SMike Christie return QLA_ERROR; 382313483730SMike Christie return QLA_SUCCESS; 382413483730SMike Christie } 382513483730SMike Christie 382613483730SMike Christie static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 382713483730SMike Christie struct ddb_entry *ddb_entry) 382813483730SMike Christie { 382913483730SMike Christie ddb_entry->ddb_type = FLASH_DDB; 383013483730SMike Christie ddb_entry->fw_ddb_index = INVALID_ENTRY; 383113483730SMike Christie ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 383213483730SMike Christie ddb_entry->ha = ha; 383313483730SMike Christie ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 383413483730SMike Christie ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 383513483730SMike Christie 383613483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 383713483730SMike Christie atomic_set(&ddb_entry->relogin_timer, 0); 383813483730SMike Christie atomic_set(&ddb_entry->relogin_retry_count, 0); 383913483730SMike Christie 384013483730SMike Christie ddb_entry->default_relogin_timeout = 384113483730SMike Christie le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 384213483730SMike Christie ddb_entry->default_time2wait = 384313483730SMike Christie le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 384413483730SMike Christie } 384513483730SMike Christie 384613483730SMike Christie static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 384713483730SMike Christie { 384813483730SMike Christie uint32_t idx = 0; 384913483730SMike Christie uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 385013483730SMike Christie uint32_t sts[MBOX_REG_COUNT]; 385113483730SMike Christie uint32_t ip_state; 385213483730SMike Christie unsigned long wtime; 385313483730SMike Christie int ret; 385413483730SMike Christie 385513483730SMike Christie wtime = jiffies + (HZ * IP_CONFIG_TOV); 385613483730SMike Christie do { 385713483730SMike Christie for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 385813483730SMike Christie if (ip_idx[idx] == -1) 385913483730SMike Christie continue; 386013483730SMike Christie 386113483730SMike Christie ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 386213483730SMike Christie 386313483730SMike Christie if (ret == QLA_ERROR) { 386413483730SMike Christie ip_idx[idx] = -1; 386513483730SMike Christie continue; 386613483730SMike Christie } 386713483730SMike Christie 386813483730SMike Christie ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 386913483730SMike Christie 387013483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 387113483730SMike Christie "Waiting for IP state for idx = %d, state = 0x%x\n", 387213483730SMike Christie ip_idx[idx], ip_state)); 387313483730SMike Christie if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 387413483730SMike Christie ip_state == IP_ADDRSTATE_INVALID || 387513483730SMike Christie ip_state == IP_ADDRSTATE_PREFERRED || 387613483730SMike Christie ip_state == IP_ADDRSTATE_DEPRICATED || 387713483730SMike Christie ip_state == IP_ADDRSTATE_DISABLING) 387813483730SMike Christie ip_idx[idx] = -1; 387913483730SMike Christie 388013483730SMike Christie } 388113483730SMike Christie 388213483730SMike Christie /* Break if all IP states checked */ 388313483730SMike Christie if ((ip_idx[0] == -1) && 388413483730SMike Christie (ip_idx[1] == -1) && 388513483730SMike Christie (ip_idx[2] == -1) && 388613483730SMike Christie (ip_idx[3] == -1)) 388713483730SMike Christie break; 388813483730SMike Christie schedule_timeout_uninterruptible(HZ); 388913483730SMike Christie } while (time_after(wtime, jiffies)); 389013483730SMike Christie } 389113483730SMike Christie 389213483730SMike Christie void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 389313483730SMike Christie { 389413483730SMike Christie int max_ddbs; 389513483730SMike Christie int ret; 389613483730SMike Christie uint32_t idx = 0, next_idx = 0; 389713483730SMike Christie uint32_t state = 0, conn_err = 0; 389813483730SMike Christie uint16_t conn_id; 389913483730SMike Christie struct dev_db_entry *fw_ddb_entry; 390013483730SMike Christie struct ddb_entry *ddb_entry = NULL; 390113483730SMike Christie dma_addr_t fw_ddb_dma; 390213483730SMike Christie struct iscsi_cls_session *cls_sess; 390313483730SMike Christie struct iscsi_session *sess; 390413483730SMike Christie struct iscsi_cls_conn *cls_conn; 390513483730SMike Christie struct iscsi_endpoint *ep; 390613483730SMike Christie uint16_t cmds_max = 32, tmo = 0; 390713483730SMike Christie uint32_t initial_cmdsn = 0; 390813483730SMike Christie struct list_head list_st, list_nt; /* List of sendtargets */ 390913483730SMike Christie struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 391013483730SMike Christie int fw_idx_size; 391113483730SMike Christie unsigned long wtime; 391213483730SMike Christie struct qla_ddb_index *nt_ddb_idx; 391313483730SMike Christie 391413483730SMike Christie if (!test_bit(AF_LINK_UP, &ha->flags)) { 391513483730SMike Christie set_bit(AF_BUILD_DDB_LIST, &ha->flags); 391613483730SMike Christie ha->is_reset = is_reset; 39174549415aSLalit Chandivade return; 39184549415aSLalit Chandivade } 391913483730SMike Christie max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 392013483730SMike Christie MAX_DEV_DB_ENTRIES; 392113483730SMike Christie 392213483730SMike Christie fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 392313483730SMike Christie &fw_ddb_dma); 392413483730SMike Christie if (fw_ddb_entry == NULL) { 392513483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 392613483730SMike Christie goto exit_ddb_list; 392713483730SMike Christie } 392813483730SMike Christie 392913483730SMike Christie INIT_LIST_HEAD(&list_st); 393013483730SMike Christie INIT_LIST_HEAD(&list_nt); 393113483730SMike Christie fw_idx_size = sizeof(struct qla_ddb_index); 393213483730SMike Christie 393313483730SMike Christie for (idx = 0; idx < max_ddbs; idx = next_idx) { 393413483730SMike Christie ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, 393513483730SMike Christie fw_ddb_dma, NULL, 393613483730SMike Christie &next_idx, &state, &conn_err, 393713483730SMike Christie NULL, &conn_id); 393813483730SMike Christie if (ret == QLA_ERROR) 393913483730SMike Christie break; 394013483730SMike Christie 394113483730SMike Christie if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 394213483730SMike Christie goto continue_next_st; 394313483730SMike Christie 394413483730SMike Christie /* Check if ST, add to the list_st */ 394513483730SMike Christie if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 394613483730SMike Christie goto continue_next_st; 394713483730SMike Christie 394813483730SMike Christie st_ddb_idx = vzalloc(fw_idx_size); 394913483730SMike Christie if (!st_ddb_idx) 395013483730SMike Christie break; 395113483730SMike Christie 395213483730SMike Christie st_ddb_idx->fw_ddb_idx = idx; 395313483730SMike Christie 395413483730SMike Christie list_add_tail(&st_ddb_idx->list, &list_st); 395513483730SMike Christie continue_next_st: 395613483730SMike Christie if (next_idx == 0) 395713483730SMike Christie break; 395813483730SMike Christie } 395913483730SMike Christie 396013483730SMike Christie /* Before issuing conn open mbox, ensure all IPs states are configured 396113483730SMike Christie * Note, conn open fails if IPs are not configured 396213483730SMike Christie */ 396313483730SMike Christie qla4xxx_wait_for_ip_configuration(ha); 396413483730SMike Christie 396513483730SMike Christie /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 396613483730SMike Christie list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 396713483730SMike Christie qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 396813483730SMike Christie } 396913483730SMike Christie 397013483730SMike Christie /* Wait to ensure all sendtargets are done for min 12 sec wait */ 397113483730SMike Christie tmo = ((ha->def_timeout < LOGIN_TOV) ? LOGIN_TOV : ha->def_timeout); 397213483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 397313483730SMike Christie "Default time to wait for build ddb %d\n", tmo)); 397413483730SMike Christie 397513483730SMike Christie wtime = jiffies + (HZ * tmo); 397613483730SMike Christie do { 397713483730SMike Christie list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, 397813483730SMike Christie list) { 397913483730SMike Christie ret = qla4xxx_get_fwddb_entry(ha, 398013483730SMike Christie st_ddb_idx->fw_ddb_idx, 398113483730SMike Christie NULL, 0, NULL, &next_idx, 398213483730SMike Christie &state, &conn_err, NULL, 398313483730SMike Christie NULL); 398413483730SMike Christie if (ret == QLA_ERROR) 398513483730SMike Christie continue; 398613483730SMike Christie 398713483730SMike Christie if (state == DDB_DS_NO_CONNECTION_ACTIVE || 398813483730SMike Christie state == DDB_DS_SESSION_FAILED) { 398913483730SMike Christie list_del_init(&st_ddb_idx->list); 399013483730SMike Christie vfree(st_ddb_idx); 399113483730SMike Christie } 399213483730SMike Christie } 399313483730SMike Christie schedule_timeout_uninterruptible(HZ / 10); 399413483730SMike Christie } while (time_after(wtime, jiffies)); 399513483730SMike Christie 399613483730SMike Christie /* Free up the sendtargets list */ 399713483730SMike Christie list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 399813483730SMike Christie list_del_init(&st_ddb_idx->list); 399913483730SMike Christie vfree(st_ddb_idx); 400013483730SMike Christie } 400113483730SMike Christie 400213483730SMike Christie for (idx = 0; idx < max_ddbs; idx = next_idx) { 400313483730SMike Christie ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, 400413483730SMike Christie fw_ddb_dma, NULL, 400513483730SMike Christie &next_idx, &state, &conn_err, 400613483730SMike Christie NULL, &conn_id); 400713483730SMike Christie if (ret == QLA_ERROR) 400813483730SMike Christie break; 400913483730SMike Christie 401013483730SMike Christie if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 401113483730SMike Christie goto continue_next_nt; 401213483730SMike Christie 401313483730SMike Christie /* Check if NT, then add to list it */ 401413483730SMike Christie if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 401513483730SMike Christie goto continue_next_nt; 401613483730SMike Christie 401713483730SMike Christie if (state == DDB_DS_NO_CONNECTION_ACTIVE || 401813483730SMike Christie state == DDB_DS_SESSION_FAILED) { 401913483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 402013483730SMike Christie "Adding DDB to session = 0x%x\n", 402113483730SMike Christie idx)); 402213483730SMike Christie if (is_reset == INIT_ADAPTER) { 402313483730SMike Christie nt_ddb_idx = vmalloc(fw_idx_size); 402413483730SMike Christie if (!nt_ddb_idx) 402513483730SMike Christie break; 402613483730SMike Christie 402713483730SMike Christie nt_ddb_idx->fw_ddb_idx = idx; 402813483730SMike Christie 402913483730SMike Christie memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 403013483730SMike Christie sizeof(struct dev_db_entry)); 403113483730SMike Christie 403213483730SMike Christie if (qla4xxx_is_flash_ddb_exists(ha, &list_nt, 403313483730SMike Christie fw_ddb_entry) == QLA_SUCCESS) { 403413483730SMike Christie vfree(nt_ddb_idx); 403513483730SMike Christie goto continue_next_nt; 403613483730SMike Christie } 403713483730SMike Christie list_add_tail(&nt_ddb_idx->list, &list_nt); 403813483730SMike Christie } else if (is_reset == RESET_ADAPTER) { 403913483730SMike Christie if (qla4xxx_is_session_exists(ha, 404013483730SMike Christie fw_ddb_entry) == QLA_SUCCESS) 404113483730SMike Christie goto continue_next_nt; 404213483730SMike Christie } 404313483730SMike Christie 404413483730SMike Christie /* Create session object, with INVALID_ENTRY, 404513483730SMike Christie * the targer_id would get set when we issue the login 404613483730SMike Christie */ 404713483730SMike Christie cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, 404813483730SMike Christie ha->host, cmds_max, 404913483730SMike Christie sizeof(struct ddb_entry), 405013483730SMike Christie sizeof(struct ql4_task_data), 405113483730SMike Christie initial_cmdsn, INVALID_ENTRY); 405213483730SMike Christie if (!cls_sess) 405313483730SMike Christie goto exit_ddb_list; 405413483730SMike Christie 405513483730SMike Christie /* 405613483730SMike Christie * iscsi_session_setup increments the driver reference 405713483730SMike Christie * count which wouldn't let the driver to be unloaded. 405813483730SMike Christie * so calling module_put function to decrement the 405913483730SMike Christie * reference count. 406013483730SMike Christie **/ 406113483730SMike Christie module_put(qla4xxx_iscsi_transport.owner); 406213483730SMike Christie sess = cls_sess->dd_data; 406313483730SMike Christie ddb_entry = sess->dd_data; 406413483730SMike Christie ddb_entry->sess = cls_sess; 406513483730SMike Christie 406613483730SMike Christie cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 406713483730SMike Christie memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 406813483730SMike Christie sizeof(struct dev_db_entry)); 406913483730SMike Christie 407013483730SMike Christie qla4xxx_setup_flash_ddb_entry(ha, ddb_entry); 407113483730SMike Christie 407213483730SMike Christie cls_conn = iscsi_conn_setup(cls_sess, 407313483730SMike Christie sizeof(struct qla_conn), 407413483730SMike Christie conn_id); 407513483730SMike Christie if (!cls_conn) 407613483730SMike Christie goto exit_ddb_list; 407713483730SMike Christie 407813483730SMike Christie ddb_entry->conn = cls_conn; 407913483730SMike Christie 408013483730SMike Christie /* Setup ep, for displaying attributes in sysfs */ 408113483730SMike Christie ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 408213483730SMike Christie if (ep) { 408313483730SMike Christie ep->conn = cls_conn; 408413483730SMike Christie cls_conn->ep = ep; 408513483730SMike Christie } else { 408613483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, 408713483730SMike Christie "Unable to get ep\n")); 408813483730SMike Christie } 408913483730SMike Christie 409013483730SMike Christie /* Update sess/conn params */ 409113483730SMike Christie qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, 409213483730SMike Christie cls_conn); 409313483730SMike Christie 409413483730SMike Christie if (is_reset == RESET_ADAPTER) { 409513483730SMike Christie iscsi_block_session(cls_sess); 409613483730SMike Christie /* Use the relogin path to discover new devices 409713483730SMike Christie * by short-circuting the logic of setting 409813483730SMike Christie * timer to relogin - instead set the flags 409913483730SMike Christie * to initiate login right away. 410013483730SMike Christie */ 410113483730SMike Christie set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 410213483730SMike Christie set_bit(DF_RELOGIN, &ddb_entry->flags); 410313483730SMike Christie } 410413483730SMike Christie } 410513483730SMike Christie continue_next_nt: 410613483730SMike Christie if (next_idx == 0) 410713483730SMike Christie break; 410813483730SMike Christie } 410913483730SMike Christie exit_ddb_list: 411013483730SMike Christie qla4xxx_free_nt_list(&list_nt); 411113483730SMike Christie if (fw_ddb_entry) 411213483730SMike Christie dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 411313483730SMike Christie 411413483730SMike Christie qla4xxx_free_ddb_index(ha); 411513483730SMike Christie } 411613483730SMike Christie 41174549415aSLalit Chandivade 4118afaf5a2dSDavid Somayajulu /** 4119afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 4120afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 4121afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 4122afaf5a2dSDavid Somayajulu * 4123afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 4124afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 4125afaf5a2dSDavid Somayajulu * the driver. 4126afaf5a2dSDavid Somayajulu **/ 4127afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 4128afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 4129afaf5a2dSDavid Somayajulu { 4130afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 4131afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 4132afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 4133afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 4134afaf5a2dSDavid Somayajulu char buf[34]; 4135f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 4136f9880e76SPrasanna Mumbai uint32_t dev_state; 4137afaf5a2dSDavid Somayajulu 4138afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 4139afaf5a2dSDavid Somayajulu return -1; 4140afaf5a2dSDavid Somayajulu 4141b3a271a9SManish Rangankar host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 4142afaf5a2dSDavid Somayajulu if (host == NULL) { 4143afaf5a2dSDavid Somayajulu printk(KERN_WARNING 4144afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 4145afaf5a2dSDavid Somayajulu goto probe_disable_device; 4146afaf5a2dSDavid Somayajulu } 4147afaf5a2dSDavid Somayajulu 4148afaf5a2dSDavid Somayajulu /* Clear our data area */ 4149b3a271a9SManish Rangankar ha = to_qla_host(host); 4150afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 4151afaf5a2dSDavid Somayajulu 4152afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 4153afaf5a2dSDavid Somayajulu ha->pdev = pdev; 4154afaf5a2dSDavid Somayajulu ha->host = host; 4155afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 4156afaf5a2dSDavid Somayajulu 41572232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 41582232be0dSLalit Chandivade 4159f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 4160f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 4161f4f5df23SVikas Chaudhary ha->isp_ops = &qla4_8xxx_isp_ops; 4162f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 4163f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 4164f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 4165f4f5df23SVikas Chaudhary ha->curr_window = 255; 4166f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 4167f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 4168f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 4169f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 4170f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 4171f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 4172f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 4173f4f5df23SVikas Chaudhary } else { 4174f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 4175f4f5df23SVikas Chaudhary } 4176f4f5df23SVikas Chaudhary 41772232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 41782232be0dSLalit Chandivade if (is_qla8022(ha)) 41792232be0dSLalit Chandivade pdev->needs_freset = 1; 41802232be0dSLalit Chandivade 4181afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 4182f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 4183afaf5a2dSDavid Somayajulu if (ret) 4184f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 4185afaf5a2dSDavid Somayajulu 4186c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 4187afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 4188afaf5a2dSDavid Somayajulu 4189afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 4190afaf5a2dSDavid Somayajulu 4191afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 4192afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 4193afaf5a2dSDavid Somayajulu 4194afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 41954549415aSLalit Chandivade mutex_init(&ha->chap_sem); 4196f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 419795d31262SVikas Chaudhary init_completion(&ha->disable_acb_comp); 4198afaf5a2dSDavid Somayajulu 4199afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 4200afaf5a2dSDavid Somayajulu 4201afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 4202afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 4203c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 4204afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 4205afaf5a2dSDavid Somayajulu 4206afaf5a2dSDavid Somayajulu ret = -ENOMEM; 4207afaf5a2dSDavid Somayajulu goto probe_failed; 4208afaf5a2dSDavid Somayajulu } 4209afaf5a2dSDavid Somayajulu 4210b3a271a9SManish Rangankar host->cmd_per_lun = 3; 4211b3a271a9SManish Rangankar host->max_channel = 0; 4212b3a271a9SManish Rangankar host->max_lun = MAX_LUNS - 1; 4213b3a271a9SManish Rangankar host->max_id = MAX_TARGETS; 4214b3a271a9SManish Rangankar host->max_cmd_len = IOCB_MAX_CDB_LEN; 4215b3a271a9SManish Rangankar host->can_queue = MAX_SRBS ; 4216b3a271a9SManish Rangankar host->transportt = qla4xxx_scsi_transport; 4217b3a271a9SManish Rangankar 4218b3a271a9SManish Rangankar ret = scsi_init_shared_tag_map(host, MAX_SRBS); 4219b3a271a9SManish Rangankar if (ret) { 4220b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 4221b3a271a9SManish Rangankar "%s: scsi_init_shared_tag_map failed\n", __func__); 4222b3a271a9SManish Rangankar goto probe_failed; 4223b3a271a9SManish Rangankar } 4224b3a271a9SManish Rangankar 4225b3a271a9SManish Rangankar pci_set_drvdata(pdev, ha); 4226b3a271a9SManish Rangankar 4227b3a271a9SManish Rangankar ret = scsi_add_host(host, &pdev->dev); 4228b3a271a9SManish Rangankar if (ret) 4229b3a271a9SManish Rangankar goto probe_failed; 4230b3a271a9SManish Rangankar 4231f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 4232f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 4233f4f5df23SVikas Chaudhary 4234afaf5a2dSDavid Somayajulu /* 4235afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 4236afaf5a2dSDavid Somayajulu * firmware 4237afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 4238afaf5a2dSDavid Somayajulu */ 423913483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 4240f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 4241f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 4242f9880e76SPrasanna Mumbai 4243f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 4244f9880e76SPrasanna Mumbai qla4_8xxx_idc_lock(ha); 4245f9880e76SPrasanna Mumbai dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 4246f9880e76SPrasanna Mumbai qla4_8xxx_idc_unlock(ha); 4247f9880e76SPrasanna Mumbai if (dev_state == QLA82XX_DEV_FAILED) { 4248f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 4249f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 4250f9880e76SPrasanna Mumbai __func__); 4251f9880e76SPrasanna Mumbai break; 4252f9880e76SPrasanna Mumbai } 4253f9880e76SPrasanna Mumbai } 4254afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 4255afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 4256f4f5df23SVikas Chaudhary 4257f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 4258f4f5df23SVikas Chaudhary continue; 4259f4f5df23SVikas Chaudhary 426013483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 4261afaf5a2dSDavid Somayajulu } 4262f4f5df23SVikas Chaudhary 4263f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 4264c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 4265afaf5a2dSDavid Somayajulu 4266fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 4267fe998527SLalit Chandivade /* Put the device in failed state. */ 4268fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 4269fe998527SLalit Chandivade qla4_8xxx_idc_lock(ha); 4270fe998527SLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 4271fe998527SLalit Chandivade QLA82XX_DEV_FAILED); 4272fe998527SLalit Chandivade qla4_8xxx_idc_unlock(ha); 4273fe998527SLalit Chandivade } 4274afaf5a2dSDavid Somayajulu ret = -ENODEV; 4275b3a271a9SManish Rangankar goto remove_host; 4276afaf5a2dSDavid Somayajulu } 4277afaf5a2dSDavid Somayajulu 4278afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 4279afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 4280afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 4281afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 4282afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 4283afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 4284c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 4285afaf5a2dSDavid Somayajulu ret = -ENODEV; 4286b3a271a9SManish Rangankar goto remove_host; 4287afaf5a2dSDavid Somayajulu } 4288c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 4289afaf5a2dSDavid Somayajulu 4290b3a271a9SManish Rangankar sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 4291b3a271a9SManish Rangankar ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 4292b3a271a9SManish Rangankar if (!ha->task_wq) { 4293b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 4294b3a271a9SManish Rangankar ret = -ENODEV; 4295b3a271a9SManish Rangankar goto remove_host; 4296b3a271a9SManish Rangankar } 4297b3a271a9SManish Rangankar 4298f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 4299f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 4300f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 4301f4f5df23SVikas Chaudhary * mbx_intr_enable. 4302f4f5df23SVikas Chaudhary */ 4303f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 4304f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 4305afaf5a2dSDavid Somayajulu if (ret) { 4306f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 4307f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 4308b3a271a9SManish Rangankar goto remove_host; 4309afaf5a2dSDavid Somayajulu } 4310f4f5df23SVikas Chaudhary } 4311afaf5a2dSDavid Somayajulu 43122232be0dSLalit Chandivade pci_save_state(ha->pdev); 4313f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 4314afaf5a2dSDavid Somayajulu 4315afaf5a2dSDavid Somayajulu /* Start timer thread. */ 4316afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 4317afaf5a2dSDavid Somayajulu 4318afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 4319afaf5a2dSDavid Somayajulu 4320afaf5a2dSDavid Somayajulu printk(KERN_INFO 4321afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 4322afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 4323afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 4324afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 4325afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 4326ed1086e0SVikas Chaudhary 43272a991c21SManish Rangankar if (qla4xxx_setup_boot_info(ha)) 43282a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n", 43292a991c21SManish Rangankar __func__); 43302a991c21SManish Rangankar 433113483730SMike Christie /* Perform the build ddb list and login to each */ 433213483730SMike Christie qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 433313483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 433413483730SMike Christie 433513483730SMike Christie qla4xxx_create_chap_list(ha); 433613483730SMike Christie 4337ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 4338afaf5a2dSDavid Somayajulu return 0; 4339afaf5a2dSDavid Somayajulu 4340b3a271a9SManish Rangankar remove_host: 4341b3a271a9SManish Rangankar scsi_remove_host(ha->host); 4342b3a271a9SManish Rangankar 4343afaf5a2dSDavid Somayajulu probe_failed: 4344afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 4345f4f5df23SVikas Chaudhary 4346f4f5df23SVikas Chaudhary probe_failed_ioconfig: 43472232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 4348afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 4349afaf5a2dSDavid Somayajulu 4350afaf5a2dSDavid Somayajulu probe_disable_device: 4351afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 4352afaf5a2dSDavid Somayajulu 4353afaf5a2dSDavid Somayajulu return ret; 4354afaf5a2dSDavid Somayajulu } 4355afaf5a2dSDavid Somayajulu 4356afaf5a2dSDavid Somayajulu /** 43577eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 43587eece5a0SKaren Higgins * @ha: pointer to adapter structure 43597eece5a0SKaren Higgins * 43607eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 43617eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 43627eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 43637eece5a0SKaren Higgins **/ 43647eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 43657eece5a0SKaren Higgins { 43667eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 43677eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 43687eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 43697eece5a0SKaren Higgins 43707eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 43717eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 43727eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 43737eece5a0SKaren Higgins 43747eece5a0SKaren Higgins other_pdev = 43757eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 43767eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 43777eece5a0SKaren Higgins fn)); 43787eece5a0SKaren Higgins 43797eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 43807eece5a0SKaren Higgins if (other_pdev) { 43817eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 43827eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 43837eece5a0SKaren Higgins if (other_ha) { 43847eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 43857eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 43867eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 43877eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 43887eece5a0SKaren Higgins } 43897eece5a0SKaren Higgins } 43907eece5a0SKaren Higgins pci_dev_put(other_pdev); 43917eece5a0SKaren Higgins } 43927eece5a0SKaren Higgins } 43937eece5a0SKaren Higgins 439413483730SMike Christie static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 439513483730SMike Christie { 439613483730SMike Christie struct ddb_entry *ddb_entry; 439713483730SMike Christie int options; 439813483730SMike Christie int idx; 439913483730SMike Christie 440013483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 440113483730SMike Christie 440213483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 440313483730SMike Christie if ((ddb_entry != NULL) && 440413483730SMike Christie (ddb_entry->ddb_type == FLASH_DDB)) { 440513483730SMike Christie 440613483730SMike Christie options = LOGOUT_OPTION_CLOSE_SESSION; 440713483730SMike Christie if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) 440813483730SMike Christie == QLA_ERROR) 440913483730SMike Christie ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", 441013483730SMike Christie __func__); 441113483730SMike Christie 441213483730SMike Christie qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 441313483730SMike Christie /* 441413483730SMike Christie * we have decremented the reference count of the driver 441513483730SMike Christie * when we setup the session to have the driver unload 441613483730SMike Christie * to be seamless without actually destroying the 441713483730SMike Christie * session 441813483730SMike Christie **/ 441913483730SMike Christie try_module_get(qla4xxx_iscsi_transport.owner); 442013483730SMike Christie iscsi_destroy_endpoint(ddb_entry->conn->ep); 442113483730SMike Christie qla4xxx_free_ddb(ha, ddb_entry); 442213483730SMike Christie iscsi_session_teardown(ddb_entry->sess); 442313483730SMike Christie } 442413483730SMike Christie } 442513483730SMike Christie } 44267eece5a0SKaren Higgins /** 4427afaf5a2dSDavid Somayajulu * qla4xxx_remove_adapter - calback function to remove adapter. 4428afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 4429afaf5a2dSDavid Somayajulu **/ 4430afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 4431afaf5a2dSDavid Somayajulu { 4432afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 4433afaf5a2dSDavid Somayajulu 4434afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 4435afaf5a2dSDavid Somayajulu 44367eece5a0SKaren Higgins if (!is_qla8022(ha)) 44377eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 4438bee4fe8eSDavid C Somayajulu 4439ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 4440ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 4441ed1086e0SVikas Chaudhary 444213483730SMike Christie if ((!ql4xdisablesysfsboot) && ha->boot_kset) 44432a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 44442a991c21SManish Rangankar 444513483730SMike Christie qla4xxx_destroy_fw_ddb_session(ha); 444613483730SMike Christie 4447afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 4448afaf5a2dSDavid Somayajulu 4449afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 4450afaf5a2dSDavid Somayajulu 4451afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 4452afaf5a2dSDavid Somayajulu 44532232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 4454f4f5df23SVikas Chaudhary pci_disable_device(pdev); 4455afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 4456afaf5a2dSDavid Somayajulu } 4457afaf5a2dSDavid Somayajulu 4458afaf5a2dSDavid Somayajulu /** 4459afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 4460afaf5a2dSDavid Somayajulu * @ha: HA context 4461afaf5a2dSDavid Somayajulu * 4462afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 4463afaf5a2dSDavid Somayajulu * supported addressing method. 4464afaf5a2dSDavid Somayajulu */ 446547975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 4466afaf5a2dSDavid Somayajulu { 4467afaf5a2dSDavid Somayajulu int retval; 4468afaf5a2dSDavid Somayajulu 4469afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 44706a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 44716a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 4472afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 4473afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 4474afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 4475afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 4476284901a9SYang Hongyang DMA_BIT_MASK(32)); 4477afaf5a2dSDavid Somayajulu } 4478afaf5a2dSDavid Somayajulu } else 4479284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 4480afaf5a2dSDavid Somayajulu } 4481afaf5a2dSDavid Somayajulu 4482afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 4483afaf5a2dSDavid Somayajulu { 4484b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 4485b3a271a9SManish Rangankar struct iscsi_session *sess; 4486b3a271a9SManish Rangankar struct ddb_entry *ddb; 44878bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 4488afaf5a2dSDavid Somayajulu 4489b3a271a9SManish Rangankar cls_sess = starget_to_session(sdev->sdev_target); 4490b3a271a9SManish Rangankar sess = cls_sess->dd_data; 4491b3a271a9SManish Rangankar ddb = sess->dd_data; 4492b3a271a9SManish Rangankar 4493afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 4494afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 44958bb4033dSVikas Chaudhary 44968bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 44978bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 44988bb4033dSVikas Chaudhary 44998bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 4500afaf5a2dSDavid Somayajulu return 0; 4501afaf5a2dSDavid Somayajulu } 4502afaf5a2dSDavid Somayajulu 4503afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 4504afaf5a2dSDavid Somayajulu { 4505afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 4506afaf5a2dSDavid Somayajulu return 0; 4507afaf5a2dSDavid Somayajulu } 4508afaf5a2dSDavid Somayajulu 4509afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 4510afaf5a2dSDavid Somayajulu { 4511afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 4512afaf5a2dSDavid Somayajulu } 4513afaf5a2dSDavid Somayajulu 4514afaf5a2dSDavid Somayajulu /** 4515afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 4516afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 4517fd589a8fSAnand Gadiyar * @index: index into the active_array 4518afaf5a2dSDavid Somayajulu * 4519afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 4520afaf5a2dSDavid Somayajulu **/ 4521f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 4522f4f5df23SVikas Chaudhary uint32_t index) 4523afaf5a2dSDavid Somayajulu { 4524afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 45255369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 4526afaf5a2dSDavid Somayajulu 45275369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 45285369887aSVikas Chaudhary if (!cmd) 4529afaf5a2dSDavid Somayajulu return srb; 4530afaf5a2dSDavid Somayajulu 45315369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 45325369887aSVikas Chaudhary if (!srb) 4533afaf5a2dSDavid Somayajulu return srb; 4534afaf5a2dSDavid Somayajulu 4535afaf5a2dSDavid Somayajulu /* update counters */ 4536afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 4537afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 4538afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 4539afaf5a2dSDavid Somayajulu if (srb->cmd) 45405369887aSVikas Chaudhary srb->cmd->host_scribble = 45415369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 4542afaf5a2dSDavid Somayajulu } 4543afaf5a2dSDavid Somayajulu return srb; 4544afaf5a2dSDavid Somayajulu } 4545afaf5a2dSDavid Somayajulu 4546afaf5a2dSDavid Somayajulu /** 4547afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 454809a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 4549afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 4550afaf5a2dSDavid Somayajulu * 4551afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 4552afaf5a2dSDavid Somayajulu * for some max time. 4553afaf5a2dSDavid Somayajulu **/ 4554afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 4555afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 4556afaf5a2dSDavid Somayajulu { 4557afaf5a2dSDavid Somayajulu int done = 0; 4558afaf5a2dSDavid Somayajulu struct srb *rp; 4559afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 45602232be0dSLalit Chandivade int ret = SUCCESS; 45612232be0dSLalit Chandivade 45622232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 45632232be0dSLalit Chandivade * by PCI AER driver 45642232be0dSLalit Chandivade */ 45652232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 45662232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 45672232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 45682232be0dSLalit Chandivade ha->host_no, __func__); 45692232be0dSLalit Chandivade return ret; 45702232be0dSLalit Chandivade } 4571afaf5a2dSDavid Somayajulu 4572afaf5a2dSDavid Somayajulu do { 4573afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 45745369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 4575afaf5a2dSDavid Somayajulu if (rp == NULL) { 4576afaf5a2dSDavid Somayajulu done++; 4577afaf5a2dSDavid Somayajulu break; 4578afaf5a2dSDavid Somayajulu } 4579afaf5a2dSDavid Somayajulu 4580afaf5a2dSDavid Somayajulu msleep(2000); 4581afaf5a2dSDavid Somayajulu } while (max_wait_time--); 4582afaf5a2dSDavid Somayajulu 4583afaf5a2dSDavid Somayajulu return done; 4584afaf5a2dSDavid Somayajulu } 4585afaf5a2dSDavid Somayajulu 4586afaf5a2dSDavid Somayajulu /** 4587afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 4588afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 4589afaf5a2dSDavid Somayajulu **/ 4590afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 4591afaf5a2dSDavid Somayajulu { 4592afaf5a2dSDavid Somayajulu unsigned long wait_online; 4593afaf5a2dSDavid Somayajulu 4594f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 4595afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 4596afaf5a2dSDavid Somayajulu 4597afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 4598afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 4599afaf5a2dSDavid Somayajulu 4600afaf5a2dSDavid Somayajulu msleep(2000); 4601afaf5a2dSDavid Somayajulu } 4602afaf5a2dSDavid Somayajulu 4603afaf5a2dSDavid Somayajulu return QLA_ERROR; 4604afaf5a2dSDavid Somayajulu } 4605afaf5a2dSDavid Somayajulu 4606afaf5a2dSDavid Somayajulu /** 4607ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 4608fd589a8fSAnand Gadiyar * @ha: pointer to HBA 4609afaf5a2dSDavid Somayajulu * @t: target id 4610afaf5a2dSDavid Somayajulu * @l: lun id 4611afaf5a2dSDavid Somayajulu * 4612afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 4613afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 4614afaf5a2dSDavid Somayajulu **/ 4615ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 4616ce545039SMike Christie struct scsi_target *stgt, 4617ce545039SMike Christie struct scsi_device *sdev) 4618afaf5a2dSDavid Somayajulu { 4619afaf5a2dSDavid Somayajulu int cnt; 4620afaf5a2dSDavid Somayajulu int status = 0; 4621afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 4622afaf5a2dSDavid Somayajulu 4623afaf5a2dSDavid Somayajulu /* 4624ce545039SMike Christie * Waiting for all commands for the designated target or dev 4625ce545039SMike Christie * in the active array 4626afaf5a2dSDavid Somayajulu */ 4627afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 4628afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 4629ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 4630ce545039SMike Christie (!sdev || sdev == cmd->device)) { 4631afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 4632afaf5a2dSDavid Somayajulu status++; 4633afaf5a2dSDavid Somayajulu break; 4634afaf5a2dSDavid Somayajulu } 4635afaf5a2dSDavid Somayajulu } 4636afaf5a2dSDavid Somayajulu } 4637afaf5a2dSDavid Somayajulu return status; 4638afaf5a2dSDavid Somayajulu } 4639afaf5a2dSDavid Somayajulu 4640afaf5a2dSDavid Somayajulu /** 464109a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 464209a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 464309a0f719SVikas Chaudhary * 464409a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 464509a0f719SVikas Chaudhary * command. 464609a0f719SVikas Chaudhary **/ 464709a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 464809a0f719SVikas Chaudhary { 464909a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 465009a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 465109a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 465292b3e5bbSMike Christie unsigned long flags; 465309a0f719SVikas Chaudhary struct srb *srb = NULL; 465409a0f719SVikas Chaudhary int ret = SUCCESS; 465509a0f719SVikas Chaudhary int wait = 0; 465609a0f719SVikas Chaudhary 4657c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 46585cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 46595cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 466009a0f719SVikas Chaudhary 466192b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 466209a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 466392b3e5bbSMike Christie if (!srb) { 466492b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 466509a0f719SVikas Chaudhary return SUCCESS; 466692b3e5bbSMike Christie } 466709a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 466892b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 466909a0f719SVikas Chaudhary 467009a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 467109a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 467209a0f719SVikas Chaudhary ha->host_no, id, lun)); 467309a0f719SVikas Chaudhary ret = FAILED; 467409a0f719SVikas Chaudhary } else { 467509a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 467609a0f719SVikas Chaudhary ha->host_no, id, lun)); 467709a0f719SVikas Chaudhary wait = 1; 467809a0f719SVikas Chaudhary } 467909a0f719SVikas Chaudhary 468009a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 468109a0f719SVikas Chaudhary 468209a0f719SVikas Chaudhary /* Wait for command to complete */ 468309a0f719SVikas Chaudhary if (wait) { 468409a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 468509a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 468609a0f719SVikas Chaudhary ha->host_no, id, lun)); 468709a0f719SVikas Chaudhary ret = FAILED; 468809a0f719SVikas Chaudhary } 468909a0f719SVikas Chaudhary } 469009a0f719SVikas Chaudhary 4691c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 469209a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 469325985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 469409a0f719SVikas Chaudhary 469509a0f719SVikas Chaudhary return ret; 469609a0f719SVikas Chaudhary } 469709a0f719SVikas Chaudhary 469809a0f719SVikas Chaudhary /** 4699afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 4700afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 4701afaf5a2dSDavid Somayajulu * 4702afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 4703afaf5a2dSDavid Somayajulu * specified target. 4704afaf5a2dSDavid Somayajulu **/ 4705afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 4706afaf5a2dSDavid Somayajulu { 4707afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 4708afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 4709afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 4710afaf5a2dSDavid Somayajulu 4711612f7348SKaren Higgins if (!ddb_entry) 4712afaf5a2dSDavid Somayajulu return ret; 4713afaf5a2dSDavid Somayajulu 4714c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 4715c01be6dcSMike Christie if (ret) 4716c01be6dcSMike Christie return ret; 4717c01be6dcSMike Christie ret = FAILED; 4718c01be6dcSMike Christie 4719c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 4720afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 4721afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 4722afaf5a2dSDavid Somayajulu 4723afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 4724afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 4725afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 4726242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 4727afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 4728afaf5a2dSDavid Somayajulu 4729afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 4730afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 4731afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 4732c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 4733afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 4734afaf5a2dSDavid Somayajulu } 4735afaf5a2dSDavid Somayajulu 4736ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 4737ce545039SMike Christie cmd->device)) { 4738c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 4739afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 4740afaf5a2dSDavid Somayajulu "commands.\n"); 4741afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 4742afaf5a2dSDavid Somayajulu } 4743afaf5a2dSDavid Somayajulu 47449d562913SDavid C Somayajulu /* Send marker. */ 47459d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 47469d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 47479d562913SDavid C Somayajulu goto eh_dev_reset_done; 47489d562913SDavid C Somayajulu 4749c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 4750afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 4751afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 4752afaf5a2dSDavid Somayajulu cmd->device->lun); 4753afaf5a2dSDavid Somayajulu 4754afaf5a2dSDavid Somayajulu ret = SUCCESS; 4755afaf5a2dSDavid Somayajulu 4756afaf5a2dSDavid Somayajulu eh_dev_reset_done: 4757afaf5a2dSDavid Somayajulu 4758afaf5a2dSDavid Somayajulu return ret; 4759afaf5a2dSDavid Somayajulu } 4760afaf5a2dSDavid Somayajulu 4761afaf5a2dSDavid Somayajulu /** 4762ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 4763ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 4764ce545039SMike Christie * 4765ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 4766ce545039SMike Christie **/ 4767ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 4768ce545039SMike Christie { 4769ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 4770ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 4771c01be6dcSMike Christie int stat, ret; 4772ce545039SMike Christie 4773ce545039SMike Christie if (!ddb_entry) 4774ce545039SMike Christie return FAILED; 4775ce545039SMike Christie 4776c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 4777c01be6dcSMike Christie if (ret) 4778c01be6dcSMike Christie return ret; 4779c01be6dcSMike Christie 4780ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 4781ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 4782ce545039SMike Christie 4783ce545039SMike Christie DEBUG2(printk(KERN_INFO 4784ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 4785ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 4786242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 4787ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 4788ce545039SMike Christie 4789ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 4790ce545039SMike Christie if (stat != QLA_SUCCESS) { 4791ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 4792ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 4793ce545039SMike Christie return FAILED; 4794ce545039SMike Christie } 4795ce545039SMike Christie 4796ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 4797ce545039SMike Christie NULL)) { 4798ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 4799ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 4800ce545039SMike Christie "waiting for commands.\n"); 4801ce545039SMike Christie return FAILED; 4802ce545039SMike Christie } 4803ce545039SMike Christie 48049d562913SDavid C Somayajulu /* Send marker. */ 48059d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 48069d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 48079d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 48089d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 48099d562913SDavid C Somayajulu "marker iocb failed.\n"); 48109d562913SDavid C Somayajulu return FAILED; 48119d562913SDavid C Somayajulu } 48129d562913SDavid C Somayajulu 4813ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 4814ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 4815ce545039SMike Christie return SUCCESS; 4816ce545039SMike Christie } 4817ce545039SMike Christie 4818ce545039SMike Christie /** 4819afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 4820afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 4821afaf5a2dSDavid Somayajulu * 4822afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 4823afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 4824afaf5a2dSDavid Somayajulu **/ 4825afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 4826afaf5a2dSDavid Somayajulu { 4827afaf5a2dSDavid Somayajulu int return_status = FAILED; 4828afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 4829afaf5a2dSDavid Somayajulu 4830b3a271a9SManish Rangankar ha = to_qla_host(cmd->device->host); 4831afaf5a2dSDavid Somayajulu 4832f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 4833f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 4834f4f5df23SVikas Chaudhary ha->host_no, __func__)); 4835f4f5df23SVikas Chaudhary return FAILED; 4836f4f5df23SVikas Chaudhary } 4837f4f5df23SVikas Chaudhary 4838c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 4839dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 4840afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 4841afaf5a2dSDavid Somayajulu 4842afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 4843afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 4844afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 4845afaf5a2dSDavid Somayajulu __func__)); 4846afaf5a2dSDavid Somayajulu 4847afaf5a2dSDavid Somayajulu return FAILED; 4848afaf5a2dSDavid Somayajulu } 4849afaf5a2dSDavid Somayajulu 4850f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 4851f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 4852f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 4853f4f5df23SVikas Chaudhary else 4854f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 4855f4f5df23SVikas Chaudhary } 485650a29aecSMike Christie 4857f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 4858afaf5a2dSDavid Somayajulu return_status = SUCCESS; 4859afaf5a2dSDavid Somayajulu 4860c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 486125985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 4862afaf5a2dSDavid Somayajulu 4863afaf5a2dSDavid Somayajulu return return_status; 4864afaf5a2dSDavid Somayajulu } 4865afaf5a2dSDavid Somayajulu 486695d31262SVikas Chaudhary static int qla4xxx_context_reset(struct scsi_qla_host *ha) 486795d31262SVikas Chaudhary { 486895d31262SVikas Chaudhary uint32_t mbox_cmd[MBOX_REG_COUNT]; 486995d31262SVikas Chaudhary uint32_t mbox_sts[MBOX_REG_COUNT]; 487095d31262SVikas Chaudhary struct addr_ctrl_blk_def *acb = NULL; 487195d31262SVikas Chaudhary uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 487295d31262SVikas Chaudhary int rval = QLA_SUCCESS; 487395d31262SVikas Chaudhary dma_addr_t acb_dma; 487495d31262SVikas Chaudhary 487595d31262SVikas Chaudhary acb = dma_alloc_coherent(&ha->pdev->dev, 487695d31262SVikas Chaudhary sizeof(struct addr_ctrl_blk_def), 487795d31262SVikas Chaudhary &acb_dma, GFP_KERNEL); 487895d31262SVikas Chaudhary if (!acb) { 487995d31262SVikas Chaudhary ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 488095d31262SVikas Chaudhary __func__); 488195d31262SVikas Chaudhary rval = -ENOMEM; 488295d31262SVikas Chaudhary goto exit_port_reset; 488395d31262SVikas Chaudhary } 488495d31262SVikas Chaudhary 488595d31262SVikas Chaudhary memset(acb, 0, acb_len); 488695d31262SVikas Chaudhary 488795d31262SVikas Chaudhary rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 488895d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 488995d31262SVikas Chaudhary rval = -EIO; 489095d31262SVikas Chaudhary goto exit_free_acb; 489195d31262SVikas Chaudhary } 489295d31262SVikas Chaudhary 489395d31262SVikas Chaudhary rval = qla4xxx_disable_acb(ha); 489495d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 489595d31262SVikas Chaudhary rval = -EIO; 489695d31262SVikas Chaudhary goto exit_free_acb; 489795d31262SVikas Chaudhary } 489895d31262SVikas Chaudhary 489995d31262SVikas Chaudhary wait_for_completion_timeout(&ha->disable_acb_comp, 490095d31262SVikas Chaudhary DISABLE_ACB_TOV * HZ); 490195d31262SVikas Chaudhary 490295d31262SVikas Chaudhary rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 490395d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 490495d31262SVikas Chaudhary rval = -EIO; 490595d31262SVikas Chaudhary goto exit_free_acb; 490695d31262SVikas Chaudhary } 490795d31262SVikas Chaudhary 490895d31262SVikas Chaudhary exit_free_acb: 490995d31262SVikas Chaudhary dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 491095d31262SVikas Chaudhary acb, acb_dma); 491195d31262SVikas Chaudhary exit_port_reset: 491295d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 491395d31262SVikas Chaudhary rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 491495d31262SVikas Chaudhary return rval; 491595d31262SVikas Chaudhary } 491695d31262SVikas Chaudhary 491795d31262SVikas Chaudhary static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 491895d31262SVikas Chaudhary { 491995d31262SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 492095d31262SVikas Chaudhary int rval = QLA_SUCCESS; 492195d31262SVikas Chaudhary 492295d31262SVikas Chaudhary if (ql4xdontresethba) { 492395d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 492495d31262SVikas Chaudhary __func__)); 492595d31262SVikas Chaudhary rval = -EPERM; 492695d31262SVikas Chaudhary goto exit_host_reset; 492795d31262SVikas Chaudhary } 492895d31262SVikas Chaudhary 492995d31262SVikas Chaudhary rval = qla4xxx_wait_for_hba_online(ha); 493095d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 493195d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unable to reset host " 493295d31262SVikas Chaudhary "adapter\n", __func__)); 493395d31262SVikas Chaudhary rval = -EIO; 493495d31262SVikas Chaudhary goto exit_host_reset; 493595d31262SVikas Chaudhary } 493695d31262SVikas Chaudhary 493795d31262SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 493895d31262SVikas Chaudhary goto recover_adapter; 493995d31262SVikas Chaudhary 494095d31262SVikas Chaudhary switch (reset_type) { 494195d31262SVikas Chaudhary case SCSI_ADAPTER_RESET: 494295d31262SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 494395d31262SVikas Chaudhary break; 494495d31262SVikas Chaudhary case SCSI_FIRMWARE_RESET: 494595d31262SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 494695d31262SVikas Chaudhary if (is_qla8022(ha)) 494795d31262SVikas Chaudhary /* set firmware context reset */ 494895d31262SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, 494995d31262SVikas Chaudhary &ha->dpc_flags); 495095d31262SVikas Chaudhary else { 495195d31262SVikas Chaudhary rval = qla4xxx_context_reset(ha); 495295d31262SVikas Chaudhary goto exit_host_reset; 495395d31262SVikas Chaudhary } 495495d31262SVikas Chaudhary } 495595d31262SVikas Chaudhary break; 495695d31262SVikas Chaudhary } 495795d31262SVikas Chaudhary 495895d31262SVikas Chaudhary recover_adapter: 495995d31262SVikas Chaudhary rval = qla4xxx_recover_adapter(ha); 496095d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 496195d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 496295d31262SVikas Chaudhary __func__)); 496395d31262SVikas Chaudhary rval = -EIO; 496495d31262SVikas Chaudhary } 496595d31262SVikas Chaudhary 496695d31262SVikas Chaudhary exit_host_reset: 496795d31262SVikas Chaudhary return rval; 496895d31262SVikas Chaudhary } 496995d31262SVikas Chaudhary 49702232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 49712232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 49722232be0dSLalit Chandivade * driver calls the following device driver's callbacks 49732232be0dSLalit Chandivade * 49742232be0dSLalit Chandivade * - Fatal Errors - link_reset 49752232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 49762232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 49772232be0dSLalit Chandivade * 49782232be0dSLalit Chandivade * PCI AER driver calls 49792232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 49802232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 49812232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 49822232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 49832232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 49842232be0dSLalit Chandivade */ 49852232be0dSLalit Chandivade static pci_ers_result_t 49862232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 49872232be0dSLalit Chandivade { 49882232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 49892232be0dSLalit Chandivade 49902232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 49912232be0dSLalit Chandivade ha->host_no, __func__, state); 49922232be0dSLalit Chandivade 49932232be0dSLalit Chandivade if (!is_aer_supported(ha)) 49942232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 49952232be0dSLalit Chandivade 49962232be0dSLalit Chandivade switch (state) { 49972232be0dSLalit Chandivade case pci_channel_io_normal: 49982232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 49992232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 50002232be0dSLalit Chandivade case pci_channel_io_frozen: 50012232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 50022232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 50032232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 50042232be0dSLalit Chandivade pci_disable_device(pdev); 50057b3595dfSVikas Chaudhary /* Return back all IOs */ 50067b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 50072232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 50082232be0dSLalit Chandivade case pci_channel_io_perm_failure: 50092232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 50102232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 50112232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 50122232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 50132232be0dSLalit Chandivade } 50142232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 50152232be0dSLalit Chandivade } 50162232be0dSLalit Chandivade 50172232be0dSLalit Chandivade /** 50182232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 50192232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 50202232be0dSLalit Chandivade * and read/write to the device still works. 50212232be0dSLalit Chandivade **/ 50222232be0dSLalit Chandivade static pci_ers_result_t 50232232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 50242232be0dSLalit Chandivade { 50252232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 50262232be0dSLalit Chandivade 50272232be0dSLalit Chandivade if (!is_aer_supported(ha)) 50282232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 50292232be0dSLalit Chandivade 50302232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 50312232be0dSLalit Chandivade } 50322232be0dSLalit Chandivade 50337b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 50342232be0dSLalit Chandivade { 50352232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 50367b3595dfSVikas Chaudhary uint32_t ret = 0; 50372232be0dSLalit Chandivade int fn; 50382232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 50392232be0dSLalit Chandivade 50402232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 50412232be0dSLalit Chandivade 50422232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 50432232be0dSLalit Chandivade 50442232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 50452232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 5046b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 5047b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 50482232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 50492232be0dSLalit Chandivade } 50502232be0dSLalit Chandivade 50512232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 50522232be0dSLalit Chandivade while (fn > 0) { 50532232be0dSLalit Chandivade fn--; 50542232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 50552232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 50562232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 50572232be0dSLalit Chandivade * slot/function number */ 50582232be0dSLalit Chandivade other_pdev = 50592232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 50602232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 50612232be0dSLalit Chandivade fn)); 50622232be0dSLalit Chandivade 50632232be0dSLalit Chandivade if (!other_pdev) 50642232be0dSLalit Chandivade continue; 50652232be0dSLalit Chandivade 50662232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 50672232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 50682232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 50692232be0dSLalit Chandivade __func__, fn); 50702232be0dSLalit Chandivade pci_dev_put(other_pdev); 50712232be0dSLalit Chandivade break; 50722232be0dSLalit Chandivade } 50732232be0dSLalit Chandivade pci_dev_put(other_pdev); 50742232be0dSLalit Chandivade } 50752232be0dSLalit Chandivade 50762232be0dSLalit Chandivade /* The first function on the card, the reset owner will 50772232be0dSLalit Chandivade * start & initialize the firmware. The other functions 50782232be0dSLalit Chandivade * on the card will reset the firmware context 50792232be0dSLalit Chandivade */ 50802232be0dSLalit Chandivade if (!fn) { 50812232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 50822232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 50832232be0dSLalit Chandivade ha->pdev->devfn); 50842232be0dSLalit Chandivade 50852232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 50862232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 50872232be0dSLalit Chandivade QLA82XX_DEV_COLD); 50882232be0dSLalit Chandivade 50892232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 50902232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 50912232be0dSLalit Chandivade 50922232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 50932232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 509413483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 50952232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 50962232be0dSLalit Chandivade 50972232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 50982232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 50992232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 51002232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 51012232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 51022232be0dSLalit Chandivade QLA82XX_DEV_FAILED); 51032232be0dSLalit Chandivade } else { 51042232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 51052232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 51062232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 51072232be0dSLalit Chandivade QLA82XX_DEV_READY); 51082232be0dSLalit Chandivade /* Clear driver state register */ 51092232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 51102232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 51117b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 51127b3595dfSVikas Chaudhary if (ret) { 51137b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 51147b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 51157b3595dfSVikas Chaudhary ha->pdev->irq); 51167b3595dfSVikas Chaudhary rval = QLA_ERROR; 51177b3595dfSVikas Chaudhary } else { 51182232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 51197b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 51207b3595dfSVikas Chaudhary } 51212232be0dSLalit Chandivade } 51222232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 51232232be0dSLalit Chandivade } else { 51242232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 51252232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 51262232be0dSLalit Chandivade ha->pdev->devfn); 51272232be0dSLalit Chandivade if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 51282232be0dSLalit Chandivade QLA82XX_DEV_READY)) { 51292232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 513013483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 51317b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 51327b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 51337b3595dfSVikas Chaudhary if (ret) { 51347b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 51357b3595dfSVikas Chaudhary " reserve interrupt %d already in" 51367b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 51377b3595dfSVikas Chaudhary rval = QLA_ERROR; 51387b3595dfSVikas Chaudhary } else { 51392232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 51407b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 51417b3595dfSVikas Chaudhary } 51427b3595dfSVikas Chaudhary } 51432232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 51442232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 51452232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 51462232be0dSLalit Chandivade } 51472232be0dSLalit Chandivade } 51482232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 51492232be0dSLalit Chandivade return rval; 51502232be0dSLalit Chandivade } 51512232be0dSLalit Chandivade 51522232be0dSLalit Chandivade static pci_ers_result_t 51532232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 51542232be0dSLalit Chandivade { 51552232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 51562232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 51572232be0dSLalit Chandivade int rc; 51582232be0dSLalit Chandivade 51592232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 51602232be0dSLalit Chandivade ha->host_no, __func__); 51612232be0dSLalit Chandivade 51622232be0dSLalit Chandivade if (!is_aer_supported(ha)) 51632232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 51642232be0dSLalit Chandivade 51652232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 51662232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 51672232be0dSLalit Chandivade * IOV states 51682232be0dSLalit Chandivade */ 51692232be0dSLalit Chandivade pci_restore_state(pdev); 51702232be0dSLalit Chandivade 51712232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 51722232be0dSLalit Chandivade * save restored state which resets saved_state flag 51732232be0dSLalit Chandivade */ 51742232be0dSLalit Chandivade pci_save_state(pdev); 51752232be0dSLalit Chandivade 51762232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 51772232be0dSLalit Chandivade rc = pci_enable_device(pdev); 51782232be0dSLalit Chandivade if (rc) { 517925985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 51802232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 51812232be0dSLalit Chandivade goto exit_slot_reset; 51822232be0dSLalit Chandivade } 51832232be0dSLalit Chandivade 51847b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 51852232be0dSLalit Chandivade 51862232be0dSLalit Chandivade if (is_qla8022(ha)) { 51872232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 51882232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 51892232be0dSLalit Chandivade goto exit_slot_reset; 51902232be0dSLalit Chandivade } else 51912232be0dSLalit Chandivade goto exit_slot_reset; 51922232be0dSLalit Chandivade } 51932232be0dSLalit Chandivade 51942232be0dSLalit Chandivade exit_slot_reset: 51952232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 51962232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 51972232be0dSLalit Chandivade return ret; 51982232be0dSLalit Chandivade } 51992232be0dSLalit Chandivade 52002232be0dSLalit Chandivade static void 52012232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 52022232be0dSLalit Chandivade { 52032232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 52042232be0dSLalit Chandivade int ret; 52052232be0dSLalit Chandivade 52062232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 52072232be0dSLalit Chandivade ha->host_no, __func__); 52082232be0dSLalit Chandivade 52092232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 52102232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 52112232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 52122232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 52132232be0dSLalit Chandivade __func__); 52142232be0dSLalit Chandivade } 52152232be0dSLalit Chandivade 52162232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 52172232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 52182232be0dSLalit Chandivade } 52192232be0dSLalit Chandivade 52202232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 52212232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 52222232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 52232232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 52242232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 52252232be0dSLalit Chandivade }; 52262232be0dSLalit Chandivade 5227afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 5228afaf5a2dSDavid Somayajulu { 5229afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 5230afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 5231afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 5232afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 5233afaf5a2dSDavid Somayajulu }, 5234afaf5a2dSDavid Somayajulu { 5235afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 5236afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 5237afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 5238afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 5239afaf5a2dSDavid Somayajulu }, 5240d915058fSDavid C Somayajulu { 5241d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 5242d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 5243d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 5244d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 5245d915058fSDavid C Somayajulu }, 5246f4f5df23SVikas Chaudhary { 5247f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 5248f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 5249f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 5250f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 5251f4f5df23SVikas Chaudhary }, 5252afaf5a2dSDavid Somayajulu {0, 0}, 5253afaf5a2dSDavid Somayajulu }; 5254afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 5255afaf5a2dSDavid Somayajulu 525647975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 5257afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 5258afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 5259afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 5260afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 52612232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 5262afaf5a2dSDavid Somayajulu }; 5263afaf5a2dSDavid Somayajulu 5264afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 5265afaf5a2dSDavid Somayajulu { 5266afaf5a2dSDavid Somayajulu int ret; 5267afaf5a2dSDavid Somayajulu 5268afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 5269afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 527020c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 5271afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 5272afaf5a2dSDavid Somayajulu printk(KERN_ERR 5273afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 5274afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 5275afaf5a2dSDavid Somayajulu ret = -ENOMEM; 5276afaf5a2dSDavid Somayajulu goto no_srp_cache; 5277afaf5a2dSDavid Somayajulu } 5278afaf5a2dSDavid Somayajulu 5279afaf5a2dSDavid Somayajulu /* Derive version string. */ 5280afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 528111010fecSAndrew Vasquez if (ql4xextended_error_logging) 5282afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 5283afaf5a2dSDavid Somayajulu 5284afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 5285afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 5286afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 5287afaf5a2dSDavid Somayajulu ret = -ENODEV; 5288afaf5a2dSDavid Somayajulu goto release_srb_cache; 5289afaf5a2dSDavid Somayajulu } 5290afaf5a2dSDavid Somayajulu 5291afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 5292afaf5a2dSDavid Somayajulu if (ret) 5293afaf5a2dSDavid Somayajulu goto unregister_transport; 5294afaf5a2dSDavid Somayajulu 5295afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 5296afaf5a2dSDavid Somayajulu return 0; 52975ae16db3SDoug Maxey 5298afaf5a2dSDavid Somayajulu unregister_transport: 5299afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 5300afaf5a2dSDavid Somayajulu release_srb_cache: 5301afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 5302afaf5a2dSDavid Somayajulu no_srp_cache: 5303afaf5a2dSDavid Somayajulu return ret; 5304afaf5a2dSDavid Somayajulu } 5305afaf5a2dSDavid Somayajulu 5306afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 5307afaf5a2dSDavid Somayajulu { 5308afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 5309afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 5310afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 5311afaf5a2dSDavid Somayajulu } 5312afaf5a2dSDavid Somayajulu 5313afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 5314afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 5315afaf5a2dSDavid Somayajulu 5316afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 5317afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 5318afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 5319afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 5320