1afaf5a2dSDavid Somayajulu /* 2afaf5a2dSDavid Somayajulu * QLogic iSCSI HBA Driver 37d01d069SVikas Chaudhary * Copyright (c) 2003-2010 QLogic Corporation 4afaf5a2dSDavid Somayajulu * 5afaf5a2dSDavid Somayajulu * See LICENSE.qla4xxx for copyright and licensing details. 6afaf5a2dSDavid Somayajulu */ 7afaf5a2dSDavid Somayajulu #include <linux/moduleparam.h> 85a0e3ad6STejun Heo #include <linux/slab.h> 92a991c21SManish Rangankar #include <linux/blkdev.h> 102a991c21SManish Rangankar #include <linux/iscsi_boot_sysfs.h> 11afaf5a2dSDavid Somayajulu 12afaf5a2dSDavid Somayajulu #include <scsi/scsi_tcq.h> 13afaf5a2dSDavid Somayajulu #include <scsi/scsicam.h> 14afaf5a2dSDavid Somayajulu 15afaf5a2dSDavid Somayajulu #include "ql4_def.h" 16bee4fe8eSDavid C Somayajulu #include "ql4_version.h" 17bee4fe8eSDavid C Somayajulu #include "ql4_glbl.h" 18bee4fe8eSDavid C Somayajulu #include "ql4_dbg.h" 19bee4fe8eSDavid C Somayajulu #include "ql4_inline.h" 20afaf5a2dSDavid Somayajulu 21afaf5a2dSDavid Somayajulu /* 22afaf5a2dSDavid Somayajulu * Driver version 23afaf5a2dSDavid Somayajulu */ 2447975477SAdrian Bunk static char qla4xxx_version_str[40]; 25afaf5a2dSDavid Somayajulu 26afaf5a2dSDavid Somayajulu /* 27afaf5a2dSDavid Somayajulu * SRB allocation cache 28afaf5a2dSDavid Somayajulu */ 29e18b890bSChristoph Lameter static struct kmem_cache *srb_cachep; 30afaf5a2dSDavid Somayajulu 31afaf5a2dSDavid Somayajulu /* 32afaf5a2dSDavid Somayajulu * Module parameter information and variables 33afaf5a2dSDavid Somayajulu */ 34afaf5a2dSDavid Somayajulu int ql4xdontresethba = 0; 35f4f5df23SVikas Chaudhary module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 36afaf5a2dSDavid Somayajulu MODULE_PARM_DESC(ql4xdontresethba, 37f4f5df23SVikas Chaudhary "Don't reset the HBA for driver recovery \n" 38f4f5df23SVikas Chaudhary " 0 - It will reset HBA (Default)\n" 39f4f5df23SVikas Chaudhary " 1 - It will NOT reset HBA"); 40afaf5a2dSDavid Somayajulu 4111010fecSAndrew Vasquez int ql4xextended_error_logging = 0; /* 0 = off, 1 = log errors */ 42f4f5df23SVikas Chaudhary module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 4311010fecSAndrew Vasquez MODULE_PARM_DESC(ql4xextended_error_logging, 44afaf5a2dSDavid Somayajulu "Option to enable extended error logging, " 45afaf5a2dSDavid Somayajulu "Default is 0 - no logging, 1 - debug logging"); 46afaf5a2dSDavid Somayajulu 47f4f5df23SVikas Chaudhary int ql4xenablemsix = 1; 48f4f5df23SVikas Chaudhary module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 49f4f5df23SVikas Chaudhary MODULE_PARM_DESC(ql4xenablemsix, 50f4f5df23SVikas Chaudhary "Set to enable MSI or MSI-X interrupt mechanism.\n" 51f4f5df23SVikas Chaudhary " 0 = enable INTx interrupt mechanism.\n" 52f4f5df23SVikas Chaudhary " 1 = enable MSI-X interrupt mechanism (Default).\n" 53f4f5df23SVikas Chaudhary " 2 = enable MSI interrupt mechanism."); 54477ffb9dSDavid C Somayajulu 55d510d965SMike Christie #define QL4_DEF_QDEPTH 32 568bb4033dSVikas Chaudhary static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 578bb4033dSVikas Chaudhary module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 588bb4033dSVikas Chaudhary MODULE_PARM_DESC(ql4xmaxqdepth, 598bb4033dSVikas Chaudhary "Maximum queue depth to report for target devices.\n" 608bb4033dSVikas Chaudhary " Default: 32."); 61d510d965SMike Christie 623038727cSVikas Chaudhary static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 633038727cSVikas Chaudhary module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 643038727cSVikas Chaudhary MODULE_PARM_DESC(ql4xsess_recovery_tmo, 653038727cSVikas Chaudhary "Target Session Recovery Timeout.\n" 663038727cSVikas Chaudhary " Default: 30 sec."); 673038727cSVikas Chaudhary 68b3a271a9SManish Rangankar static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 69afaf5a2dSDavid Somayajulu /* 70afaf5a2dSDavid Somayajulu * SCSI host template entry points 71afaf5a2dSDavid Somayajulu */ 7247975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 73afaf5a2dSDavid Somayajulu 74afaf5a2dSDavid Somayajulu /* 75afaf5a2dSDavid Somayajulu * iSCSI template entry points 76afaf5a2dSDavid Somayajulu */ 77afaf5a2dSDavid Somayajulu static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 78afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf); 79aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 80aa1e93a2SMike Christie enum iscsi_host_param param, char *buf); 81d00efe3fSMike Christie static int qla4xxx_iface_set_param(struct Scsi_Host *shost, char *data, 82d00efe3fSMike Christie int count); 83ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 84ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 85ed1086e0SVikas Chaudhary int param, char *buf); 865c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 87b3a271a9SManish Rangankar static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 88b3a271a9SManish Rangankar struct sockaddr *dst_addr, 89b3a271a9SManish Rangankar int non_blocking); 90b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 91b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 92b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 93b3a271a9SManish Rangankar enum iscsi_param param, char *buf); 94b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 95b3a271a9SManish Rangankar static struct iscsi_cls_conn * 96b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 97b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 98b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 99b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading); 100b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 101b3a271a9SManish Rangankar static struct iscsi_cls_session * 102b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 103b3a271a9SManish Rangankar uint16_t qdepth, uint32_t initial_cmdsn); 104b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 105b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata); 106b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 107b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *); 108b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *); 109b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 110b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 111b3a271a9SManish Rangankar struct iscsi_stats *stats); 112afaf5a2dSDavid Somayajulu /* 113afaf5a2dSDavid Somayajulu * SCSI host template entry points 114afaf5a2dSDavid Somayajulu */ 115f281233dSJeff Garzik static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 11609a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 117afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 118ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 119afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 120afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *device); 121afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *device); 122afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev); 1233128c6c7SMike Christie static mode_t ql4_attr_is_visible(int param_type, int param); 124afaf5a2dSDavid Somayajulu 125f4f5df23SVikas Chaudhary static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 126f4f5df23SVikas Chaudhary QLA82XX_LEGACY_INTR_CONFIG; 127f4f5df23SVikas Chaudhary 128afaf5a2dSDavid Somayajulu static struct scsi_host_template qla4xxx_driver_template = { 129afaf5a2dSDavid Somayajulu .module = THIS_MODULE, 130afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 131afaf5a2dSDavid Somayajulu .proc_name = DRIVER_NAME, 132afaf5a2dSDavid Somayajulu .queuecommand = qla4xxx_queuecommand, 133afaf5a2dSDavid Somayajulu 13409a0f719SVikas Chaudhary .eh_abort_handler = qla4xxx_eh_abort, 135afaf5a2dSDavid Somayajulu .eh_device_reset_handler = qla4xxx_eh_device_reset, 136ce545039SMike Christie .eh_target_reset_handler = qla4xxx_eh_target_reset, 137afaf5a2dSDavid Somayajulu .eh_host_reset_handler = qla4xxx_eh_host_reset, 1385c656af7SMike Christie .eh_timed_out = qla4xxx_eh_cmd_timed_out, 139afaf5a2dSDavid Somayajulu 140afaf5a2dSDavid Somayajulu .slave_configure = qla4xxx_slave_configure, 141afaf5a2dSDavid Somayajulu .slave_alloc = qla4xxx_slave_alloc, 142afaf5a2dSDavid Somayajulu .slave_destroy = qla4xxx_slave_destroy, 143afaf5a2dSDavid Somayajulu 144afaf5a2dSDavid Somayajulu .this_id = -1, 145afaf5a2dSDavid Somayajulu .cmd_per_lun = 3, 146afaf5a2dSDavid Somayajulu .use_clustering = ENABLE_CLUSTERING, 147afaf5a2dSDavid Somayajulu .sg_tablesize = SG_ALL, 148afaf5a2dSDavid Somayajulu 149afaf5a2dSDavid Somayajulu .max_sectors = 0xFFFF, 1507ad633c0SHarish Zunjarrao .shost_attrs = qla4xxx_host_attrs, 151a355943cSVikas Chaudhary .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 152afaf5a2dSDavid Somayajulu }; 153afaf5a2dSDavid Somayajulu 154afaf5a2dSDavid Somayajulu static struct iscsi_transport qla4xxx_iscsi_transport = { 155afaf5a2dSDavid Somayajulu .owner = THIS_MODULE, 156afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 157b3a271a9SManish Rangankar .caps = CAP_TEXT_NEGO | 158b3a271a9SManish Rangankar CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 159b3a271a9SManish Rangankar CAP_DATADGST | CAP_LOGIN_OFFLOAD | 160b3a271a9SManish Rangankar CAP_MULTI_R2T, 1613128c6c7SMike Christie .attr_is_visible = ql4_attr_is_visible, 162b3a271a9SManish Rangankar .create_session = qla4xxx_session_create, 163b3a271a9SManish Rangankar .destroy_session = qla4xxx_session_destroy, 164b3a271a9SManish Rangankar .start_conn = qla4xxx_conn_start, 165b3a271a9SManish Rangankar .create_conn = qla4xxx_conn_create, 166b3a271a9SManish Rangankar .bind_conn = qla4xxx_conn_bind, 167b3a271a9SManish Rangankar .stop_conn = iscsi_conn_stop, 168b3a271a9SManish Rangankar .destroy_conn = qla4xxx_conn_destroy, 169b3a271a9SManish Rangankar .set_param = iscsi_set_param, 170afaf5a2dSDavid Somayajulu .get_conn_param = qla4xxx_conn_get_param, 171b3a271a9SManish Rangankar .get_session_param = iscsi_session_get_param, 172b3a271a9SManish Rangankar .get_ep_param = qla4xxx_get_ep_param, 173b3a271a9SManish Rangankar .ep_connect = qla4xxx_ep_connect, 174b3a271a9SManish Rangankar .ep_poll = qla4xxx_ep_poll, 175b3a271a9SManish Rangankar .ep_disconnect = qla4xxx_ep_disconnect, 176b3a271a9SManish Rangankar .get_stats = qla4xxx_conn_get_stats, 177b3a271a9SManish Rangankar .send_pdu = iscsi_conn_send_pdu, 178b3a271a9SManish Rangankar .xmit_task = qla4xxx_task_xmit, 179b3a271a9SManish Rangankar .cleanup_task = qla4xxx_task_cleanup, 180b3a271a9SManish Rangankar .alloc_pdu = qla4xxx_alloc_pdu, 181b3a271a9SManish Rangankar 182aa1e93a2SMike Christie .get_host_param = qla4xxx_host_get_param, 183d00efe3fSMike Christie .set_iface_param = qla4xxx_iface_set_param, 184ed1086e0SVikas Chaudhary .get_iface_param = qla4xxx_get_iface_param, 185a355943cSVikas Chaudhary .bsg_request = qla4xxx_bsg_request, 186afaf5a2dSDavid Somayajulu }; 187afaf5a2dSDavid Somayajulu 188afaf5a2dSDavid Somayajulu static struct scsi_transport_template *qla4xxx_scsi_transport; 189afaf5a2dSDavid Somayajulu 1903128c6c7SMike Christie static mode_t ql4_attr_is_visible(int param_type, int param) 1913128c6c7SMike Christie { 1923128c6c7SMike Christie switch (param_type) { 193f27fb2efSMike Christie case ISCSI_HOST_PARAM: 194f27fb2efSMike Christie switch (param) { 195f27fb2efSMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 196f27fb2efSMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 197f27fb2efSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 198f27fb2efSMike Christie return S_IRUGO; 199f27fb2efSMike Christie default: 200f27fb2efSMike Christie return 0; 201f27fb2efSMike Christie } 2023128c6c7SMike Christie case ISCSI_PARAM: 2033128c6c7SMike Christie switch (param) { 2043128c6c7SMike Christie case ISCSI_PARAM_CONN_ADDRESS: 2053128c6c7SMike Christie case ISCSI_PARAM_CONN_PORT: 2061d063c17SMike Christie case ISCSI_PARAM_TARGET_NAME: 2071d063c17SMike Christie case ISCSI_PARAM_TPGT: 2081d063c17SMike Christie case ISCSI_PARAM_TARGET_ALIAS: 209b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_BURST: 210b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_R2T: 211b3a271a9SManish Rangankar case ISCSI_PARAM_FIRST_BURST: 212b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_RECV_DLENGTH: 213b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_XMIT_DLENGTH: 2143128c6c7SMike Christie return S_IRUGO; 2153128c6c7SMike Christie default: 2163128c6c7SMike Christie return 0; 2173128c6c7SMike Christie } 218b78dbba0SMike Christie case ISCSI_NET_PARAM: 219b78dbba0SMike Christie switch (param) { 220b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 221b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 222b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_GW: 223b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 224b78dbba0SMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 225b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 226b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 227b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 228b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 229b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2306ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 2316ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 2326ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 233b78dbba0SMike Christie return S_IRUGO; 234b78dbba0SMike Christie default: 235b78dbba0SMike Christie return 0; 236b78dbba0SMike Christie } 2373128c6c7SMike Christie } 2383128c6c7SMike Christie 2393128c6c7SMike Christie return 0; 2403128c6c7SMike Christie } 2413128c6c7SMike Christie 242ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 243ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 244ed1086e0SVikas Chaudhary int param, char *buf) 245ed1086e0SVikas Chaudhary { 246ed1086e0SVikas Chaudhary struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 247ed1086e0SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 248ed1086e0SVikas Chaudhary int len = -ENOSYS; 249ed1086e0SVikas Chaudhary 250ed1086e0SVikas Chaudhary if (param_type != ISCSI_NET_PARAM) 251ed1086e0SVikas Chaudhary return -ENOSYS; 252ed1086e0SVikas Chaudhary 253ed1086e0SVikas Chaudhary switch (param) { 254ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_ADDR: 255ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 256ed1086e0SVikas Chaudhary break; 257ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_SUBNET: 258ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 259ed1086e0SVikas Chaudhary break; 260ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_GW: 261ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 262ed1086e0SVikas Chaudhary break; 263ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IFACE_ENABLE: 264ed1086e0SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 265ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 266ed1086e0SVikas Chaudhary (ha->ip_config.ipv4_options & 267ed1086e0SVikas Chaudhary IPOPT_IPV4_PROTOCOL_ENABLE) ? 268ed1086e0SVikas Chaudhary "enabled" : "disabled"); 269ed1086e0SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 270ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 271ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_options & 272ed1086e0SVikas Chaudhary IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 273ed1086e0SVikas Chaudhary "enabled" : "disabled"); 274ed1086e0SVikas Chaudhary break; 275ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 276ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 277ed1086e0SVikas Chaudhary (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 278ed1086e0SVikas Chaudhary "dhcp" : "static"); 279ed1086e0SVikas Chaudhary break; 280ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR: 281ed1086e0SVikas Chaudhary if (iface->iface_num == 0) 282ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 283ed1086e0SVikas Chaudhary if (iface->iface_num == 1) 284ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 285ed1086e0SVikas Chaudhary break; 286ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 287ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 288ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr); 289ed1086e0SVikas Chaudhary break; 290ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ROUTER: 291ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 292ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_default_router_addr); 293ed1086e0SVikas Chaudhary break; 294ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 295ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 296ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 297ed1086e0SVikas Chaudhary IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 298ed1086e0SVikas Chaudhary "nd" : "static"); 299ed1086e0SVikas Chaudhary break; 300ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 301ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 302ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 303ed1086e0SVikas Chaudhary IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 304ed1086e0SVikas Chaudhary "auto" : "static"); 305ed1086e0SVikas Chaudhary break; 3066ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 3076ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3086ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3096ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_vlan_tag & 3106ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3116ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3126ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3136ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_vlan_tag & 3146ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3156ac73e8cSVikas Chaudhary break; 3166ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 3176ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3186ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3196ac73e8cSVikas Chaudhary ((ha->ip_config.ipv4_vlan_tag >> 13) & 3206ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3216ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3226ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3236ac73e8cSVikas Chaudhary ((ha->ip_config.ipv6_vlan_tag >> 13) & 3246ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3256ac73e8cSVikas Chaudhary break; 3266ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 3276ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3286ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3296ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_options & 3306ac73e8cSVikas Chaudhary IPOPT_VLAN_TAGGING_ENABLE) ? 3316ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3326ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3336ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3346ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_options & 3356ac73e8cSVikas Chaudhary IPV6_OPT_VLAN_TAGGING_ENABLE) ? 3366ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3376ac73e8cSVikas Chaudhary break; 338ed1086e0SVikas Chaudhary default: 339ed1086e0SVikas Chaudhary len = -ENOSYS; 340ed1086e0SVikas Chaudhary } 341ed1086e0SVikas Chaudhary 342ed1086e0SVikas Chaudhary return len; 343ed1086e0SVikas Chaudhary } 344ed1086e0SVikas Chaudhary 345b3a271a9SManish Rangankar static struct iscsi_endpoint * 346b3a271a9SManish Rangankar qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 347b3a271a9SManish Rangankar int non_blocking) 348b3a271a9SManish Rangankar { 349b3a271a9SManish Rangankar int ret; 350b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 351b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 352b3a271a9SManish Rangankar struct scsi_qla_host *ha; 353b3a271a9SManish Rangankar struct sockaddr_in *addr; 354b3a271a9SManish Rangankar struct sockaddr_in6 *addr6; 355b3a271a9SManish Rangankar 356b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 357b3a271a9SManish Rangankar if (!shost) { 358b3a271a9SManish Rangankar ret = -ENXIO; 359b3a271a9SManish Rangankar printk(KERN_ERR "%s: shost is NULL\n", 360b3a271a9SManish Rangankar __func__); 361b3a271a9SManish Rangankar return ERR_PTR(ret); 362b3a271a9SManish Rangankar } 363b3a271a9SManish Rangankar 364b3a271a9SManish Rangankar ha = iscsi_host_priv(shost); 365b3a271a9SManish Rangankar 366b3a271a9SManish Rangankar ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 367b3a271a9SManish Rangankar if (!ep) { 368b3a271a9SManish Rangankar ret = -ENOMEM; 369b3a271a9SManish Rangankar return ERR_PTR(ret); 370b3a271a9SManish Rangankar } 371b3a271a9SManish Rangankar 372b3a271a9SManish Rangankar qla_ep = ep->dd_data; 373b3a271a9SManish Rangankar memset(qla_ep, 0, sizeof(struct qla_endpoint)); 374b3a271a9SManish Rangankar if (dst_addr->sa_family == AF_INET) { 375b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 376b3a271a9SManish Rangankar addr = (struct sockaddr_in *)&qla_ep->dst_addr; 377b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 378b3a271a9SManish Rangankar (char *)&addr->sin_addr)); 379b3a271a9SManish Rangankar } else if (dst_addr->sa_family == AF_INET6) { 380b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, 381b3a271a9SManish Rangankar sizeof(struct sockaddr_in6)); 382b3a271a9SManish Rangankar addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 383b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 384b3a271a9SManish Rangankar (char *)&addr6->sin6_addr)); 385b3a271a9SManish Rangankar } 386b3a271a9SManish Rangankar 387b3a271a9SManish Rangankar qla_ep->host = shost; 388b3a271a9SManish Rangankar 389b3a271a9SManish Rangankar return ep; 390b3a271a9SManish Rangankar } 391b3a271a9SManish Rangankar 392b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 393b3a271a9SManish Rangankar { 394b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 395b3a271a9SManish Rangankar struct scsi_qla_host *ha; 396b3a271a9SManish Rangankar int ret = 0; 397b3a271a9SManish Rangankar 398b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 399b3a271a9SManish Rangankar qla_ep = ep->dd_data; 400b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 401b3a271a9SManish Rangankar 402b3a271a9SManish Rangankar if (adapter_up(ha)) 403b3a271a9SManish Rangankar ret = 1; 404b3a271a9SManish Rangankar 405b3a271a9SManish Rangankar return ret; 406b3a271a9SManish Rangankar } 407b3a271a9SManish Rangankar 408b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 409b3a271a9SManish Rangankar { 410b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 411b3a271a9SManish Rangankar iscsi_destroy_endpoint(ep); 412b3a271a9SManish Rangankar } 413b3a271a9SManish Rangankar 414b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 415b3a271a9SManish Rangankar enum iscsi_param param, 416b3a271a9SManish Rangankar char *buf) 417b3a271a9SManish Rangankar { 418b3a271a9SManish Rangankar struct qla_endpoint *qla_ep = ep->dd_data; 419b3a271a9SManish Rangankar struct sockaddr *dst_addr; 420b3a271a9SManish Rangankar 421b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 422b3a271a9SManish Rangankar 423b3a271a9SManish Rangankar switch (param) { 424b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_PORT: 425b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_ADDRESS: 426b3a271a9SManish Rangankar if (!qla_ep) 427b3a271a9SManish Rangankar return -ENOTCONN; 428b3a271a9SManish Rangankar 429b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 430b3a271a9SManish Rangankar if (!dst_addr) 431b3a271a9SManish Rangankar return -ENOTCONN; 432b3a271a9SManish Rangankar 433b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 434b3a271a9SManish Rangankar &qla_ep->dst_addr, param, buf); 435b3a271a9SManish Rangankar default: 436b3a271a9SManish Rangankar return -ENOSYS; 437b3a271a9SManish Rangankar } 438b3a271a9SManish Rangankar } 439b3a271a9SManish Rangankar 440b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 441b3a271a9SManish Rangankar struct iscsi_stats *stats) 442b3a271a9SManish Rangankar { 443b3a271a9SManish Rangankar struct iscsi_session *sess; 444b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 445b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 446b3a271a9SManish Rangankar struct scsi_qla_host *ha; 447b3a271a9SManish Rangankar struct ql_iscsi_stats *ql_iscsi_stats; 448b3a271a9SManish Rangankar int stats_size; 449b3a271a9SManish Rangankar int ret; 450b3a271a9SManish Rangankar dma_addr_t iscsi_stats_dma; 451b3a271a9SManish Rangankar 452b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 453b3a271a9SManish Rangankar 454b3a271a9SManish Rangankar cls_sess = iscsi_conn_to_session(cls_conn); 455b3a271a9SManish Rangankar sess = cls_sess->dd_data; 456b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 457b3a271a9SManish Rangankar ha = ddb_entry->ha; 458b3a271a9SManish Rangankar 459b3a271a9SManish Rangankar stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 460b3a271a9SManish Rangankar /* Allocate memory */ 461b3a271a9SManish Rangankar ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 462b3a271a9SManish Rangankar &iscsi_stats_dma, GFP_KERNEL); 463b3a271a9SManish Rangankar if (!ql_iscsi_stats) { 464b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 465b3a271a9SManish Rangankar "Unable to allocate memory for iscsi stats\n"); 466b3a271a9SManish Rangankar goto exit_get_stats; 467b3a271a9SManish Rangankar } 468b3a271a9SManish Rangankar 469b3a271a9SManish Rangankar ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 470b3a271a9SManish Rangankar iscsi_stats_dma); 471b3a271a9SManish Rangankar if (ret != QLA_SUCCESS) { 472b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 473b3a271a9SManish Rangankar "Unable to retreive iscsi stats\n"); 474b3a271a9SManish Rangankar goto free_stats; 475b3a271a9SManish Rangankar } 476b3a271a9SManish Rangankar 477b3a271a9SManish Rangankar /* octets */ 478b3a271a9SManish Rangankar stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 479b3a271a9SManish Rangankar stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 480b3a271a9SManish Rangankar /* xmit pdus */ 481b3a271a9SManish Rangankar stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 482b3a271a9SManish Rangankar stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 483b3a271a9SManish Rangankar stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 484b3a271a9SManish Rangankar stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 485b3a271a9SManish Rangankar stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 486b3a271a9SManish Rangankar stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 487b3a271a9SManish Rangankar stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 488b3a271a9SManish Rangankar stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 489b3a271a9SManish Rangankar /* recv pdus */ 490b3a271a9SManish Rangankar stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 491b3a271a9SManish Rangankar stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 492b3a271a9SManish Rangankar stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 493b3a271a9SManish Rangankar stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 494b3a271a9SManish Rangankar stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 495b3a271a9SManish Rangankar stats->logoutrsp_pdus = 496b3a271a9SManish Rangankar le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 497b3a271a9SManish Rangankar stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 498b3a271a9SManish Rangankar stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 499b3a271a9SManish Rangankar stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 500b3a271a9SManish Rangankar 501b3a271a9SManish Rangankar free_stats: 502b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 503b3a271a9SManish Rangankar iscsi_stats_dma); 504b3a271a9SManish Rangankar exit_get_stats: 505b3a271a9SManish Rangankar return; 506b3a271a9SManish Rangankar } 507b3a271a9SManish Rangankar 5085c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 5095c656af7SMike Christie { 5105c656af7SMike Christie struct iscsi_cls_session *session; 511b3a271a9SManish Rangankar struct iscsi_session *sess; 512b3a271a9SManish Rangankar unsigned long flags; 513b3a271a9SManish Rangankar enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 5145c656af7SMike Christie 5155c656af7SMike Christie session = starget_to_session(scsi_target(sc->device)); 516b3a271a9SManish Rangankar sess = session->dd_data; 5175c656af7SMike Christie 518b3a271a9SManish Rangankar spin_lock_irqsave(&session->lock, flags); 519b3a271a9SManish Rangankar if (session->state == ISCSI_SESSION_FAILED) 520b3a271a9SManish Rangankar ret = BLK_EH_RESET_TIMER; 521b3a271a9SManish Rangankar spin_unlock_irqrestore(&session->lock, flags); 5225c656af7SMike Christie 523b3a271a9SManish Rangankar return ret; 524568d303bSMike Christie } 525afaf5a2dSDavid Somayajulu 526aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 527aa1e93a2SMike Christie enum iscsi_host_param param, char *buf) 528aa1e93a2SMike Christie { 529aa1e93a2SMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 530aa1e93a2SMike Christie int len; 531aa1e93a2SMike Christie 532aa1e93a2SMike Christie switch (param) { 533aa1e93a2SMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 5347ffc49a6SMichael Chan len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 535aa1e93a2SMike Christie break; 53622236961SMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 5372bab08fcSVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 53822236961SMike Christie break; 5398ad5781aSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 54022236961SMike Christie len = sprintf(buf, "%s\n", ha->name_string); 5418ad5781aSMike Christie break; 542aa1e93a2SMike Christie default: 543aa1e93a2SMike Christie return -ENOSYS; 544aa1e93a2SMike Christie } 545aa1e93a2SMike Christie 546aa1e93a2SMike Christie return len; 547aa1e93a2SMike Christie } 548aa1e93a2SMike Christie 549ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 550ed1086e0SVikas Chaudhary { 551ed1086e0SVikas Chaudhary if (ha->iface_ipv4) 552ed1086e0SVikas Chaudhary return; 553ed1086e0SVikas Chaudhary 554ed1086e0SVikas Chaudhary /* IPv4 */ 555ed1086e0SVikas Chaudhary ha->iface_ipv4 = iscsi_create_iface(ha->host, 556ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 557ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV4, 0, 0); 558ed1086e0SVikas Chaudhary if (!ha->iface_ipv4) 559ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 560ed1086e0SVikas Chaudhary "iface0.\n"); 561ed1086e0SVikas Chaudhary } 562ed1086e0SVikas Chaudhary 563ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 564ed1086e0SVikas Chaudhary { 565ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 566ed1086e0SVikas Chaudhary /* IPv6 iface-0 */ 567ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 568ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 569ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 0, 570ed1086e0SVikas Chaudhary 0); 571ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 572ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 573ed1086e0SVikas Chaudhary "iface0.\n"); 574ed1086e0SVikas Chaudhary 575ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 576ed1086e0SVikas Chaudhary /* IPv6 iface-1 */ 577ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 578ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 579ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 1, 580ed1086e0SVikas Chaudhary 0); 581ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 582ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 583ed1086e0SVikas Chaudhary "iface1.\n"); 584ed1086e0SVikas Chaudhary } 585ed1086e0SVikas Chaudhary 586ed1086e0SVikas Chaudhary static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 587ed1086e0SVikas Chaudhary { 588ed1086e0SVikas Chaudhary if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 589ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 590ed1086e0SVikas Chaudhary 591ed1086e0SVikas Chaudhary if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 592ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 593ed1086e0SVikas Chaudhary } 594ed1086e0SVikas Chaudhary 595ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 596ed1086e0SVikas Chaudhary { 597ed1086e0SVikas Chaudhary if (ha->iface_ipv4) { 598ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv4); 599ed1086e0SVikas Chaudhary ha->iface_ipv4 = NULL; 600ed1086e0SVikas Chaudhary } 601ed1086e0SVikas Chaudhary } 602ed1086e0SVikas Chaudhary 603ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 604ed1086e0SVikas Chaudhary { 605ed1086e0SVikas Chaudhary if (ha->iface_ipv6_0) { 606ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_0); 607ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = NULL; 608ed1086e0SVikas Chaudhary } 609ed1086e0SVikas Chaudhary if (ha->iface_ipv6_1) { 610ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_1); 611ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = NULL; 612ed1086e0SVikas Chaudhary } 613ed1086e0SVikas Chaudhary } 614ed1086e0SVikas Chaudhary 615ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 616ed1086e0SVikas Chaudhary { 617ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 618ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 619ed1086e0SVikas Chaudhary } 620ed1086e0SVikas Chaudhary 621d00efe3fSMike Christie static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 622d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 623d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 624d00efe3fSMike Christie { 625d00efe3fSMike Christie /* 626d00efe3fSMike Christie * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 627d00efe3fSMike Christie * iface_num 1 is valid only for IPv6 Addr. 628d00efe3fSMike Christie */ 629d00efe3fSMike Christie switch (iface_param->param) { 630d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 631d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 632d00efe3fSMike Christie /* IPv6 Addr 1 */ 633d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 634d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr1)); 635d00efe3fSMike Christie else 636d00efe3fSMike Christie /* IPv6 Addr 0 */ 637d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 638d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr0)); 639d00efe3fSMike Christie break; 640d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 641d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 642d00efe3fSMike Christie break; 643d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 644d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_if_id)); 645d00efe3fSMike Christie break; 646d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 647d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 648d00efe3fSMike Christie break; 649d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 650d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 651d00efe3fSMike Christie break; 652d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 653d00efe3fSMike Christie /* Autocfg applies to even interface */ 654d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 655d00efe3fSMike Christie break; 656d00efe3fSMike Christie 657d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 658d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= 659d00efe3fSMike Christie cpu_to_le16( 660d00efe3fSMike Christie ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 661d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 662d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= 663d00efe3fSMike Christie cpu_to_le16( 664d00efe3fSMike Christie IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 665d00efe3fSMike Christie else 666d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 667d00efe3fSMike Christie "IPv6 addr\n"); 668d00efe3fSMike Christie break; 669d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 670d00efe3fSMike Christie /* Autocfg applies to even interface */ 671d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 672d00efe3fSMike Christie break; 673d00efe3fSMike Christie 674d00efe3fSMike Christie if (iface_param->value[0] == 675d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 676d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 677d00efe3fSMike Christie IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 678d00efe3fSMike Christie else if (iface_param->value[0] == 679d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 680d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 681d00efe3fSMike Christie ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 682d00efe3fSMike Christie else 683d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 684d00efe3fSMike Christie "IPv6 linklocal addr\n"); 685d00efe3fSMike Christie break; 686d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 687d00efe3fSMike Christie /* Autocfg applies to even interface */ 688d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 689d00efe3fSMike Christie break; 690d00efe3fSMike Christie 691d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 692d00efe3fSMike Christie memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 693d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 694d00efe3fSMike Christie break; 695d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 696ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 697d00efe3fSMike Christie init_fw_cb->ipv6_opts |= 698d00efe3fSMike Christie cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 699ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 700ed1086e0SVikas Chaudhary } else { 701d00efe3fSMike Christie init_fw_cb->ipv6_opts &= 702d00efe3fSMike Christie cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 703d00efe3fSMike Christie 0xFFFF); 704ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 705ed1086e0SVikas Chaudhary } 706d00efe3fSMike Christie break; 707d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 708d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 709d00efe3fSMike Christie break; 7106ac73e8cSVikas Chaudhary init_fw_cb->ipv6_vlan_tag = 7116ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 7126ac73e8cSVikas Chaudhary break; 7136ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 7146ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 7156ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts |= 7166ac73e8cSVikas Chaudhary cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 7176ac73e8cSVikas Chaudhary else 7186ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts &= 7196ac73e8cSVikas Chaudhary cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 720d00efe3fSMike Christie break; 721d00efe3fSMike Christie default: 722d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 723d00efe3fSMike Christie iface_param->param); 724d00efe3fSMike Christie break; 725d00efe3fSMike Christie } 726d00efe3fSMike Christie } 727d00efe3fSMike Christie 728d00efe3fSMike Christie static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 729d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 730d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 731d00efe3fSMike Christie { 732d00efe3fSMike Christie switch (iface_param->param) { 733d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 734d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_addr, iface_param->value, 735d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_addr)); 736d00efe3fSMike Christie break; 737d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 738d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 739d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_subnet)); 740d00efe3fSMike Christie break; 741d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_GW: 742d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 743d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_gw_addr)); 744d00efe3fSMike Christie break; 745d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 746d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 747d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts |= 748d00efe3fSMike Christie cpu_to_le16(TCPOPT_DHCP_ENABLE); 749d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 750d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts &= 751d00efe3fSMike Christie cpu_to_le16(~TCPOPT_DHCP_ENABLE); 752d00efe3fSMike Christie else 753d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 754d00efe3fSMike Christie break; 755d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 756ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 757d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts |= 7582bab08fcSVikas Chaudhary cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 759ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 760ed1086e0SVikas Chaudhary } else { 761d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts &= 7622bab08fcSVikas Chaudhary cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 763d00efe3fSMike Christie 0xFFFF); 764ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 765ed1086e0SVikas Chaudhary } 766d00efe3fSMike Christie break; 767d00efe3fSMike Christie case ISCSI_NET_PARAM_VLAN_ID: 768d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 769d00efe3fSMike Christie break; 7706ac73e8cSVikas Chaudhary init_fw_cb->ipv4_vlan_tag = 7716ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 7726ac73e8cSVikas Chaudhary break; 7736ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 7746ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 7756ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts |= 7766ac73e8cSVikas Chaudhary cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 7776ac73e8cSVikas Chaudhary else 7786ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts &= 7796ac73e8cSVikas Chaudhary cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 780d00efe3fSMike Christie break; 781d00efe3fSMike Christie default: 782d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 783d00efe3fSMike Christie iface_param->param); 784d00efe3fSMike Christie break; 785d00efe3fSMike Christie } 786d00efe3fSMike Christie } 787d00efe3fSMike Christie 788d00efe3fSMike Christie static void 789d00efe3fSMike Christie qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 790d00efe3fSMike Christie { 791d00efe3fSMike Christie struct addr_ctrl_blk_def *acb; 792d00efe3fSMike Christie acb = (struct addr_ctrl_blk_def *)init_fw_cb; 793d00efe3fSMike Christie memset(acb->reserved1, 0, sizeof(acb->reserved1)); 794d00efe3fSMike Christie memset(acb->reserved2, 0, sizeof(acb->reserved2)); 795d00efe3fSMike Christie memset(acb->reserved3, 0, sizeof(acb->reserved3)); 796d00efe3fSMike Christie memset(acb->reserved4, 0, sizeof(acb->reserved4)); 797d00efe3fSMike Christie memset(acb->reserved5, 0, sizeof(acb->reserved5)); 798d00efe3fSMike Christie memset(acb->reserved6, 0, sizeof(acb->reserved6)); 799d00efe3fSMike Christie memset(acb->reserved7, 0, sizeof(acb->reserved7)); 800d00efe3fSMike Christie memset(acb->reserved8, 0, sizeof(acb->reserved8)); 801d00efe3fSMike Christie memset(acb->reserved9, 0, sizeof(acb->reserved9)); 802d00efe3fSMike Christie memset(acb->reserved10, 0, sizeof(acb->reserved10)); 803d00efe3fSMike Christie memset(acb->reserved11, 0, sizeof(acb->reserved11)); 804d00efe3fSMike Christie memset(acb->reserved12, 0, sizeof(acb->reserved12)); 805d00efe3fSMike Christie memset(acb->reserved13, 0, sizeof(acb->reserved13)); 806d00efe3fSMike Christie memset(acb->reserved14, 0, sizeof(acb->reserved14)); 807d00efe3fSMike Christie memset(acb->reserved15, 0, sizeof(acb->reserved15)); 808d00efe3fSMike Christie } 809d00efe3fSMike Christie 810d00efe3fSMike Christie static int 811d00efe3fSMike Christie qla4xxx_iface_set_param(struct Scsi_Host *shost, char *data, int count) 812d00efe3fSMike Christie { 813d00efe3fSMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 814d00efe3fSMike Christie int rval = 0; 815d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param = NULL; 816d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb = NULL; 817d00efe3fSMike Christie dma_addr_t init_fw_cb_dma; 818d00efe3fSMike Christie uint32_t mbox_cmd[MBOX_REG_COUNT]; 819d00efe3fSMike Christie uint32_t mbox_sts[MBOX_REG_COUNT]; 820d00efe3fSMike Christie uint32_t total_param_count; 821d00efe3fSMike Christie uint32_t length; 822d00efe3fSMike Christie 823d00efe3fSMike Christie init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 824d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 825d00efe3fSMike Christie &init_fw_cb_dma, GFP_KERNEL); 826d00efe3fSMike Christie if (!init_fw_cb) { 827d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 828d00efe3fSMike Christie __func__); 829d00efe3fSMike Christie return -ENOMEM; 830d00efe3fSMike Christie } 831d00efe3fSMike Christie 832d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 833d00efe3fSMike Christie memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 834d00efe3fSMike Christie memset(&mbox_sts, 0, sizeof(mbox_sts)); 835d00efe3fSMike Christie 836d00efe3fSMike Christie if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 837d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 838d00efe3fSMike Christie rval = -EIO; 839d00efe3fSMike Christie goto exit_init_fw_cb; 840d00efe3fSMike Christie } 841d00efe3fSMike Christie 842d00efe3fSMike Christie total_param_count = count; 843d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *)data; 844d00efe3fSMike Christie 845d00efe3fSMike Christie for ( ; total_param_count != 0; total_param_count--) { 846d00efe3fSMike Christie length = iface_param->len; 847d00efe3fSMike Christie 848d00efe3fSMike Christie if (iface_param->param_type != ISCSI_NET_PARAM) 849d00efe3fSMike Christie continue; 850d00efe3fSMike Christie 851d00efe3fSMike Christie switch (iface_param->iface_type) { 852d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV4: 853d00efe3fSMike Christie switch (iface_param->iface_num) { 854d00efe3fSMike Christie case 0: 855d00efe3fSMike Christie qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 856d00efe3fSMike Christie break; 857d00efe3fSMike Christie default: 858d00efe3fSMike Christie /* Cannot have more than one IPv4 interface */ 859d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 860d00efe3fSMike Christie "number = %d\n", 861d00efe3fSMike Christie iface_param->iface_num); 862d00efe3fSMike Christie break; 863d00efe3fSMike Christie } 864d00efe3fSMike Christie break; 865d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV6: 866d00efe3fSMike Christie switch (iface_param->iface_num) { 867d00efe3fSMike Christie case 0: 868d00efe3fSMike Christie case 1: 869d00efe3fSMike Christie qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 870d00efe3fSMike Christie break; 871d00efe3fSMike Christie default: 872d00efe3fSMike Christie /* Cannot have more than two IPv6 interface */ 873d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 874d00efe3fSMike Christie "number = %d\n", 875d00efe3fSMike Christie iface_param->iface_num); 876d00efe3fSMike Christie break; 877d00efe3fSMike Christie } 878d00efe3fSMike Christie break; 879d00efe3fSMike Christie default: 880d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 881d00efe3fSMike Christie break; 882d00efe3fSMike Christie } 883d00efe3fSMike Christie 884d00efe3fSMike Christie iface_param = (struct iscsi_iface_param_info *) 885d00efe3fSMike Christie ((uint8_t *)iface_param + 886d00efe3fSMike Christie sizeof(struct iscsi_iface_param_info) + length); 887d00efe3fSMike Christie } 888d00efe3fSMike Christie 889d00efe3fSMike Christie init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 890d00efe3fSMike Christie 891d00efe3fSMike Christie rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 892d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 893d00efe3fSMike Christie FLASH_OPT_RMW_COMMIT); 894d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 895d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 896d00efe3fSMike Christie __func__); 897d00efe3fSMike Christie rval = -EIO; 898d00efe3fSMike Christie goto exit_init_fw_cb; 899d00efe3fSMike Christie } 900d00efe3fSMike Christie 901d00efe3fSMike Christie qla4xxx_disable_acb(ha); 902d00efe3fSMike Christie 903d00efe3fSMike Christie qla4xxx_initcb_to_acb(init_fw_cb); 904d00efe3fSMike Christie 905d00efe3fSMike Christie rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 906d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 907d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 908d00efe3fSMike Christie __func__); 909d00efe3fSMike Christie rval = -EIO; 910d00efe3fSMike Christie goto exit_init_fw_cb; 911d00efe3fSMike Christie } 912d00efe3fSMike Christie 913d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 914d00efe3fSMike Christie qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 915d00efe3fSMike Christie init_fw_cb_dma); 916d00efe3fSMike Christie 917d00efe3fSMike Christie exit_init_fw_cb: 918d00efe3fSMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 919d00efe3fSMike Christie init_fw_cb, init_fw_cb_dma); 920d00efe3fSMike Christie 921d00efe3fSMike Christie return rval; 922d00efe3fSMike Christie } 923d00efe3fSMike Christie 924b3a271a9SManish Rangankar static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 925afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 926afaf5a2dSDavid Somayajulu { 927b3a271a9SManish Rangankar struct iscsi_conn *conn; 928b3a271a9SManish Rangankar struct qla_conn *qla_conn; 929b3a271a9SManish Rangankar struct sockaddr *dst_addr; 930b3a271a9SManish Rangankar int len = 0; 931afaf5a2dSDavid Somayajulu 932b3a271a9SManish Rangankar conn = cls_conn->dd_data; 933b3a271a9SManish Rangankar qla_conn = conn->dd_data; 934b3a271a9SManish Rangankar dst_addr = &qla_conn->qla_ep->dst_addr; 935afaf5a2dSDavid Somayajulu 936afaf5a2dSDavid Somayajulu switch (param) { 937afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_PORT: 938afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_ADDRESS: 939b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 940b3a271a9SManish Rangankar dst_addr, param, buf); 941afaf5a2dSDavid Somayajulu default: 942b3a271a9SManish Rangankar return iscsi_conn_get_param(cls_conn, param, buf); 943afaf5a2dSDavid Somayajulu } 944afaf5a2dSDavid Somayajulu 945afaf5a2dSDavid Somayajulu return len; 946b3a271a9SManish Rangankar 947afaf5a2dSDavid Somayajulu } 948afaf5a2dSDavid Somayajulu 949b3a271a9SManish Rangankar static struct iscsi_cls_session * 950b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, 951b3a271a9SManish Rangankar uint16_t cmds_max, uint16_t qdepth, 952b3a271a9SManish Rangankar uint32_t initial_cmdsn) 953b3a271a9SManish Rangankar { 954b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 955b3a271a9SManish Rangankar struct scsi_qla_host *ha; 956b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 957b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 958b3a271a9SManish Rangankar uint32_t ddb_index; 959b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 960b3a271a9SManish Rangankar struct iscsi_session *sess; 961b3a271a9SManish Rangankar struct sockaddr *dst_addr; 962b3a271a9SManish Rangankar int ret; 963b3a271a9SManish Rangankar 964b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 965b3a271a9SManish Rangankar if (!ep) { 966b3a271a9SManish Rangankar printk(KERN_ERR "qla4xxx: missing ep.\n"); 967b3a271a9SManish Rangankar return NULL; 968b3a271a9SManish Rangankar } 969b3a271a9SManish Rangankar 970b3a271a9SManish Rangankar qla_ep = ep->dd_data; 971b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 972b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 973b3a271a9SManish Rangankar get_ddb_index: 974b3a271a9SManish Rangankar ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 975b3a271a9SManish Rangankar 976b3a271a9SManish Rangankar if (ddb_index >= MAX_DDB_ENTRIES) { 977b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 978b3a271a9SManish Rangankar "Free DDB index not available\n")); 979b3a271a9SManish Rangankar return NULL; 980b3a271a9SManish Rangankar } 981b3a271a9SManish Rangankar 982b3a271a9SManish Rangankar if (test_and_set_bit(ddb_index, ha->ddb_idx_map)) 983b3a271a9SManish Rangankar goto get_ddb_index; 984b3a271a9SManish Rangankar 985b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 986b3a271a9SManish Rangankar "Found a free DDB index at %d\n", ddb_index)); 987b3a271a9SManish Rangankar ret = qla4xxx_req_ddb_entry(ha, ddb_index, &mbx_sts); 988b3a271a9SManish Rangankar if (ret == QLA_ERROR) { 989b3a271a9SManish Rangankar if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 990b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 991b3a271a9SManish Rangankar "DDB index = %d not available trying next\n", 992b3a271a9SManish Rangankar ddb_index); 993b3a271a9SManish Rangankar goto get_ddb_index; 994b3a271a9SManish Rangankar } 995b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 996b3a271a9SManish Rangankar "Free FW DDB not available\n")); 997b3a271a9SManish Rangankar return NULL; 998b3a271a9SManish Rangankar } 999b3a271a9SManish Rangankar 1000b3a271a9SManish Rangankar cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 1001b3a271a9SManish Rangankar cmds_max, sizeof(struct ddb_entry), 1002b3a271a9SManish Rangankar sizeof(struct ql4_task_data), 1003b3a271a9SManish Rangankar initial_cmdsn, ddb_index); 1004b3a271a9SManish Rangankar if (!cls_sess) 1005b3a271a9SManish Rangankar return NULL; 1006b3a271a9SManish Rangankar 1007b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1008b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1009b3a271a9SManish Rangankar ddb_entry->fw_ddb_index = ddb_index; 1010b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 1011b3a271a9SManish Rangankar ddb_entry->ha = ha; 1012b3a271a9SManish Rangankar ddb_entry->sess = cls_sess; 1013b3a271a9SManish Rangankar cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 1014b3a271a9SManish Rangankar ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1015b3a271a9SManish Rangankar ha->tot_ddbs++; 1016b3a271a9SManish Rangankar 1017b3a271a9SManish Rangankar return cls_sess; 1018b3a271a9SManish Rangankar } 1019b3a271a9SManish Rangankar 1020b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 1021b3a271a9SManish Rangankar { 1022b3a271a9SManish Rangankar struct iscsi_session *sess; 1023b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1024b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1025b3a271a9SManish Rangankar unsigned long flags; 1026b3a271a9SManish Rangankar 1027b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1028b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1029b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1030b3a271a9SManish Rangankar ha = ddb_entry->ha; 1031b3a271a9SManish Rangankar 1032b3a271a9SManish Rangankar spin_lock_irqsave(&ha->hardware_lock, flags); 1033b3a271a9SManish Rangankar qla4xxx_free_ddb(ha, ddb_entry); 1034b3a271a9SManish Rangankar spin_unlock_irqrestore(&ha->hardware_lock, flags); 1035b3a271a9SManish Rangankar iscsi_session_teardown(cls_sess); 1036b3a271a9SManish Rangankar } 1037b3a271a9SManish Rangankar 1038b3a271a9SManish Rangankar static struct iscsi_cls_conn * 1039b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 1040b3a271a9SManish Rangankar { 1041b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1042b3a271a9SManish Rangankar struct iscsi_session *sess; 1043b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1044b3a271a9SManish Rangankar 1045b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1046b3a271a9SManish Rangankar cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 1047b3a271a9SManish Rangankar conn_idx); 1048b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1049b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1050b3a271a9SManish Rangankar ddb_entry->conn = cls_conn; 1051b3a271a9SManish Rangankar 1052b3a271a9SManish Rangankar return cls_conn; 1053b3a271a9SManish Rangankar } 1054b3a271a9SManish Rangankar 1055b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 1056b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 1057b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading) 1058b3a271a9SManish Rangankar { 1059b3a271a9SManish Rangankar struct iscsi_conn *conn; 1060b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1061b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 1062b3a271a9SManish Rangankar 1063b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1064b3a271a9SManish Rangankar 1065b3a271a9SManish Rangankar if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 1066b3a271a9SManish Rangankar return -EINVAL; 1067b3a271a9SManish Rangankar ep = iscsi_lookup_endpoint(transport_fd); 1068b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1069b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1070b3a271a9SManish Rangankar qla_conn->qla_ep = ep->dd_data; 1071b3a271a9SManish Rangankar return 0; 1072b3a271a9SManish Rangankar } 1073b3a271a9SManish Rangankar 1074b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 1075b3a271a9SManish Rangankar { 1076b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1077b3a271a9SManish Rangankar struct iscsi_session *sess; 1078b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1079b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1080b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 1081b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1082b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 1083b3a271a9SManish Rangankar int ret = 0; 1084b3a271a9SManish Rangankar int status = QLA_SUCCESS; 1085b3a271a9SManish Rangankar 1086b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1087b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1088b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1089b3a271a9SManish Rangankar ha = ddb_entry->ha; 1090b3a271a9SManish Rangankar 1091b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1092b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1093b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1094b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1095b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 1096b3a271a9SManish Rangankar return -ENOMEM; 1097b3a271a9SManish Rangankar } 1098b3a271a9SManish Rangankar 1099b3a271a9SManish Rangankar ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 1100b3a271a9SManish Rangankar if (ret) { 1101b3a271a9SManish Rangankar /* If iscsid is stopped and started then no need to do 1102b3a271a9SManish Rangankar * set param again since ddb state will be already 1103b3a271a9SManish Rangankar * active and FW does not allow set ddb to an 1104b3a271a9SManish Rangankar * active session. 1105b3a271a9SManish Rangankar */ 1106b3a271a9SManish Rangankar if (mbx_sts) 1107b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == 1108b3a271a9SManish Rangankar DDB_DS_SESSION_ACTIVE) 1109b3a271a9SManish Rangankar goto exit_set_param; 1110b3a271a9SManish Rangankar 1111b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 1112b3a271a9SManish Rangankar __func__, ddb_entry->fw_ddb_index); 1113b3a271a9SManish Rangankar goto exit_conn_start; 1114b3a271a9SManish Rangankar } 1115b3a271a9SManish Rangankar 1116b3a271a9SManish Rangankar status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1117b3a271a9SManish Rangankar if (status == QLA_ERROR) { 11180e7e8501SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 11190e7e8501SManish Rangankar sess->targetname); 1120b3a271a9SManish Rangankar ret = -EINVAL; 1121b3a271a9SManish Rangankar goto exit_conn_start; 1122b3a271a9SManish Rangankar } 1123b3a271a9SManish Rangankar 1124b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1125b3a271a9SManish Rangankar 1126b3a271a9SManish Rangankar exit_set_param: 1127b3a271a9SManish Rangankar iscsi_conn_start(cls_conn); 1128b3a271a9SManish Rangankar ret = 0; 1129b3a271a9SManish Rangankar 1130b3a271a9SManish Rangankar exit_conn_start: 1131b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1132b3a271a9SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 1133b3a271a9SManish Rangankar return ret; 1134b3a271a9SManish Rangankar } 1135b3a271a9SManish Rangankar 1136b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 1137b3a271a9SManish Rangankar { 1138b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1139b3a271a9SManish Rangankar struct iscsi_session *sess; 1140b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1141b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1142b3a271a9SManish Rangankar int options; 1143b3a271a9SManish Rangankar 1144b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1145b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1146b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1147b3a271a9SManish Rangankar ha = ddb_entry->ha; 1148b3a271a9SManish Rangankar 1149b3a271a9SManish Rangankar options = LOGOUT_OPTION_CLOSE_SESSION; 1150b3a271a9SManish Rangankar if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 1151b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 1152b3a271a9SManish Rangankar else 1153b3a271a9SManish Rangankar qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 1154b3a271a9SManish Rangankar 1155b3a271a9SManish Rangankar /* 1156b3a271a9SManish Rangankar * Clear the DDB bit so that next login can use the bit 1157b3a271a9SManish Rangankar * if FW is not clearing the DDB entry then set DDB will fail anyways 1158b3a271a9SManish Rangankar */ 1159b3a271a9SManish Rangankar clear_bit(ddb_entry->fw_ddb_index, ha->ddb_idx_map); 1160b3a271a9SManish Rangankar } 1161b3a271a9SManish Rangankar 1162b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata) 1163b3a271a9SManish Rangankar { 1164b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1165b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1166b3a271a9SManish Rangankar struct passthru_status *sts; 1167b3a271a9SManish Rangankar struct iscsi_task *task; 1168b3a271a9SManish Rangankar struct iscsi_hdr *hdr; 1169b3a271a9SManish Rangankar uint8_t *data; 1170b3a271a9SManish Rangankar uint32_t data_len; 1171b3a271a9SManish Rangankar struct iscsi_conn *conn; 1172b3a271a9SManish Rangankar int hdr_len; 1173b3a271a9SManish Rangankar itt_t itt; 1174b3a271a9SManish Rangankar 1175b3a271a9SManish Rangankar task_data = container_of(wdata, struct ql4_task_data, task_work); 1176b3a271a9SManish Rangankar ha = task_data->ha; 1177b3a271a9SManish Rangankar task = task_data->task; 1178b3a271a9SManish Rangankar sts = &task_data->sts; 1179b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1180b3a271a9SManish Rangankar 1181b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Status returned\n")); 1182b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(sts, 64)); 1183b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Response buffer")); 1184b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 1185b3a271a9SManish Rangankar 1186b3a271a9SManish Rangankar conn = task->conn; 1187b3a271a9SManish Rangankar 1188b3a271a9SManish Rangankar switch (sts->completionStatus) { 1189b3a271a9SManish Rangankar case PASSTHRU_STATUS_COMPLETE: 1190b3a271a9SManish Rangankar hdr = (struct iscsi_hdr *)task_data->resp_buffer; 1191b3a271a9SManish Rangankar /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 1192b3a271a9SManish Rangankar itt = sts->handle; 1193b3a271a9SManish Rangankar hdr->itt = itt; 1194b3a271a9SManish Rangankar data = task_data->resp_buffer + hdr_len; 1195b3a271a9SManish Rangankar data_len = task_data->resp_len - hdr_len; 1196b3a271a9SManish Rangankar iscsi_complete_pdu(conn, hdr, data, data_len); 1197b3a271a9SManish Rangankar break; 1198b3a271a9SManish Rangankar default: 1199b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 1200b3a271a9SManish Rangankar sts->completionStatus); 1201b3a271a9SManish Rangankar break; 1202b3a271a9SManish Rangankar } 1203b3a271a9SManish Rangankar return; 1204b3a271a9SManish Rangankar } 1205b3a271a9SManish Rangankar 1206b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 1207b3a271a9SManish Rangankar { 1208b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1209b3a271a9SManish Rangankar struct iscsi_session *sess; 1210b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1211b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1212b3a271a9SManish Rangankar int hdr_len; 1213b3a271a9SManish Rangankar 1214b3a271a9SManish Rangankar sess = task->conn->session; 1215b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1216b3a271a9SManish Rangankar ha = ddb_entry->ha; 1217b3a271a9SManish Rangankar task_data = task->dd_data; 1218b3a271a9SManish Rangankar memset(task_data, 0, sizeof(struct ql4_task_data)); 1219b3a271a9SManish Rangankar 1220b3a271a9SManish Rangankar if (task->sc) { 1221b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 1222b3a271a9SManish Rangankar "%s: SCSI Commands not implemented\n", __func__); 1223b3a271a9SManish Rangankar return -EINVAL; 1224b3a271a9SManish Rangankar } 1225b3a271a9SManish Rangankar 1226b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1227b3a271a9SManish Rangankar task_data->ha = ha; 1228b3a271a9SManish Rangankar task_data->task = task; 1229b3a271a9SManish Rangankar 1230b3a271a9SManish Rangankar if (task->data_count) { 1231b3a271a9SManish Rangankar task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 1232b3a271a9SManish Rangankar task->data_count, 1233b3a271a9SManish Rangankar PCI_DMA_TODEVICE); 1234b3a271a9SManish Rangankar } 1235b3a271a9SManish Rangankar 1236b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1237b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1238b3a271a9SManish Rangankar 1239b3a271a9SManish Rangankar task_data->resp_len = task->conn->max_recv_dlength; 1240b3a271a9SManish Rangankar task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 1241b3a271a9SManish Rangankar task_data->resp_len, 1242b3a271a9SManish Rangankar &task_data->resp_dma, 1243b3a271a9SManish Rangankar GFP_ATOMIC); 1244b3a271a9SManish Rangankar if (!task_data->resp_buffer) 1245b3a271a9SManish Rangankar goto exit_alloc_pdu; 1246b3a271a9SManish Rangankar 1247b3a271a9SManish Rangankar task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 1248b3a271a9SManish Rangankar task->data_count + hdr_len, 1249b3a271a9SManish Rangankar &task_data->req_dma, 1250b3a271a9SManish Rangankar GFP_ATOMIC); 1251b3a271a9SManish Rangankar if (!task_data->req_buffer) 1252b3a271a9SManish Rangankar goto exit_alloc_pdu; 1253b3a271a9SManish Rangankar 1254b3a271a9SManish Rangankar task->hdr = task_data->req_buffer; 1255b3a271a9SManish Rangankar 1256b3a271a9SManish Rangankar INIT_WORK(&task_data->task_work, qla4xxx_task_work); 1257b3a271a9SManish Rangankar 1258b3a271a9SManish Rangankar return 0; 1259b3a271a9SManish Rangankar 1260b3a271a9SManish Rangankar exit_alloc_pdu: 1261b3a271a9SManish Rangankar if (task_data->resp_buffer) 1262b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1263b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1264b3a271a9SManish Rangankar 1265b3a271a9SManish Rangankar if (task_data->req_buffer) 1266b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task->data_count + hdr_len, 1267b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1268b3a271a9SManish Rangankar return -ENOMEM; 1269b3a271a9SManish Rangankar } 1270b3a271a9SManish Rangankar 1271b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *task) 1272b3a271a9SManish Rangankar { 1273b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1274b3a271a9SManish Rangankar struct iscsi_session *sess; 1275b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1276b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1277b3a271a9SManish Rangankar int hdr_len; 1278b3a271a9SManish Rangankar 1279b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1280b3a271a9SManish Rangankar sess = task->conn->session; 1281b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1282b3a271a9SManish Rangankar ha = ddb_entry->ha; 1283b3a271a9SManish Rangankar task_data = task->dd_data; 1284b3a271a9SManish Rangankar 1285b3a271a9SManish Rangankar if (task->data_count) { 1286b3a271a9SManish Rangankar dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 1287b3a271a9SManish Rangankar task->data_count, PCI_DMA_TODEVICE); 1288b3a271a9SManish Rangankar } 1289b3a271a9SManish Rangankar 1290b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1291b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1292b3a271a9SManish Rangankar 1293b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1294b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1295b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task->data_count + hdr_len, 1296b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1297b3a271a9SManish Rangankar return; 1298b3a271a9SManish Rangankar } 1299b3a271a9SManish Rangankar 1300b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *task) 1301b3a271a9SManish Rangankar { 1302b3a271a9SManish Rangankar struct scsi_cmnd *sc = task->sc; 1303b3a271a9SManish Rangankar struct iscsi_session *sess = task->conn->session; 1304b3a271a9SManish Rangankar struct ddb_entry *ddb_entry = sess->dd_data; 1305b3a271a9SManish Rangankar struct scsi_qla_host *ha = ddb_entry->ha; 1306b3a271a9SManish Rangankar 1307b3a271a9SManish Rangankar if (!sc) 1308b3a271a9SManish Rangankar return qla4xxx_send_passthru0(task); 1309b3a271a9SManish Rangankar 1310b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 1311b3a271a9SManish Rangankar __func__); 1312b3a271a9SManish Rangankar return -ENOSYS; 1313b3a271a9SManish Rangankar } 1314b3a271a9SManish Rangankar 1315b3a271a9SManish Rangankar void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 1316b3a271a9SManish Rangankar struct ddb_entry *ddb_entry) 1317b3a271a9SManish Rangankar { 1318b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1319b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1320b3a271a9SManish Rangankar struct iscsi_session *sess; 1321b3a271a9SManish Rangankar struct iscsi_conn *conn; 1322b3a271a9SManish Rangankar uint32_t ddb_state; 1323b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1324b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 1325b3a271a9SManish Rangankar 1326b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1327b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1328b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1329b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1330b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 1331b3a271a9SManish Rangankar return; 1332b3a271a9SManish Rangankar } 1333b3a271a9SManish Rangankar 1334b3a271a9SManish Rangankar if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 1335b3a271a9SManish Rangankar fw_ddb_entry_dma, NULL, NULL, &ddb_state, 1336b3a271a9SManish Rangankar NULL, NULL, NULL) == QLA_ERROR) { 1337b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 1338b3a271a9SManish Rangankar "get_ddb_entry for fw_ddb_index %d\n", 1339b3a271a9SManish Rangankar ha->host_no, __func__, 1340b3a271a9SManish Rangankar ddb_entry->fw_ddb_index)); 1341b3a271a9SManish Rangankar return; 1342b3a271a9SManish Rangankar } 1343b3a271a9SManish Rangankar 1344b3a271a9SManish Rangankar cls_sess = ddb_entry->sess; 1345b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1346b3a271a9SManish Rangankar 1347b3a271a9SManish Rangankar cls_conn = ddb_entry->conn; 1348b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1349b3a271a9SManish Rangankar 1350b3a271a9SManish Rangankar /* Update params */ 1351b3a271a9SManish Rangankar conn->max_recv_dlength = BYTE_UNITS * 1352b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 1353b3a271a9SManish Rangankar 1354b3a271a9SManish Rangankar conn->max_xmit_dlength = BYTE_UNITS * 1355b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 1356b3a271a9SManish Rangankar 1357b3a271a9SManish Rangankar sess->initial_r2t_en = 1358b3a271a9SManish Rangankar (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1359b3a271a9SManish Rangankar 1360b3a271a9SManish Rangankar sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 1361b3a271a9SManish Rangankar 1362b3a271a9SManish Rangankar sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1363b3a271a9SManish Rangankar 1364b3a271a9SManish Rangankar sess->first_burst = BYTE_UNITS * 1365b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 1366b3a271a9SManish Rangankar 1367b3a271a9SManish Rangankar sess->max_burst = BYTE_UNITS * 1368b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 1369b3a271a9SManish Rangankar 1370b3a271a9SManish Rangankar sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 1371b3a271a9SManish Rangankar 1372b3a271a9SManish Rangankar sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 1373b3a271a9SManish Rangankar 1374b3a271a9SManish Rangankar sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 1375b3a271a9SManish Rangankar 1376b3a271a9SManish Rangankar memcpy(sess->initiatorname, ha->name_string, 1377b3a271a9SManish Rangankar min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 1378b3a271a9SManish Rangankar } 1379b3a271a9SManish Rangankar 1380afaf5a2dSDavid Somayajulu /* 1381afaf5a2dSDavid Somayajulu * Timer routines 1382afaf5a2dSDavid Somayajulu */ 1383afaf5a2dSDavid Somayajulu 1384afaf5a2dSDavid Somayajulu static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 1385afaf5a2dSDavid Somayajulu unsigned long interval) 1386afaf5a2dSDavid Somayajulu { 1387afaf5a2dSDavid Somayajulu DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 1388afaf5a2dSDavid Somayajulu __func__, ha->host->host_no)); 1389afaf5a2dSDavid Somayajulu init_timer(&ha->timer); 1390afaf5a2dSDavid Somayajulu ha->timer.expires = jiffies + interval * HZ; 1391afaf5a2dSDavid Somayajulu ha->timer.data = (unsigned long)ha; 1392afaf5a2dSDavid Somayajulu ha->timer.function = (void (*)(unsigned long))func; 1393afaf5a2dSDavid Somayajulu add_timer(&ha->timer); 1394afaf5a2dSDavid Somayajulu ha->timer_active = 1; 1395afaf5a2dSDavid Somayajulu } 1396afaf5a2dSDavid Somayajulu 1397afaf5a2dSDavid Somayajulu static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 1398afaf5a2dSDavid Somayajulu { 1399afaf5a2dSDavid Somayajulu del_timer_sync(&ha->timer); 1400afaf5a2dSDavid Somayajulu ha->timer_active = 0; 1401afaf5a2dSDavid Somayajulu } 1402afaf5a2dSDavid Somayajulu 1403afaf5a2dSDavid Somayajulu /*** 1404b3a271a9SManish Rangankar * qla4xxx_mark_device_missing - blocks the session 1405b3a271a9SManish Rangankar * @cls_session: Pointer to the session to be blocked 1406afaf5a2dSDavid Somayajulu * @ddb_entry: Pointer to device database entry 1407afaf5a2dSDavid Somayajulu * 1408f4f5df23SVikas Chaudhary * This routine marks a device missing and close connection. 1409afaf5a2dSDavid Somayajulu **/ 1410b3a271a9SManish Rangankar void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 1411afaf5a2dSDavid Somayajulu { 1412b3a271a9SManish Rangankar iscsi_block_session(cls_session); 1413afaf5a2dSDavid Somayajulu } 1414afaf5a2dSDavid Somayajulu 1415f4f5df23SVikas Chaudhary /** 1416f4f5df23SVikas Chaudhary * qla4xxx_mark_all_devices_missing - mark all devices as missing. 1417f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1418f4f5df23SVikas Chaudhary * 1419f4f5df23SVikas Chaudhary * This routine marks a device missing and resets the relogin retry count. 1420f4f5df23SVikas Chaudhary **/ 1421f4f5df23SVikas Chaudhary void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 1422f4f5df23SVikas Chaudhary { 1423b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 1424f4f5df23SVikas Chaudhary } 1425f4f5df23SVikas Chaudhary 1426afaf5a2dSDavid Somayajulu static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 1427afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, 14288f0722caSVikas Chaudhary struct scsi_cmnd *cmd) 1429afaf5a2dSDavid Somayajulu { 1430afaf5a2dSDavid Somayajulu struct srb *srb; 1431afaf5a2dSDavid Somayajulu 1432afaf5a2dSDavid Somayajulu srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 1433afaf5a2dSDavid Somayajulu if (!srb) 1434afaf5a2dSDavid Somayajulu return srb; 1435afaf5a2dSDavid Somayajulu 143609a0f719SVikas Chaudhary kref_init(&srb->srb_ref); 1437afaf5a2dSDavid Somayajulu srb->ha = ha; 1438afaf5a2dSDavid Somayajulu srb->ddb = ddb_entry; 1439afaf5a2dSDavid Somayajulu srb->cmd = cmd; 1440afaf5a2dSDavid Somayajulu srb->flags = 0; 14415369887aSVikas Chaudhary CMD_SP(cmd) = (void *)srb; 1442afaf5a2dSDavid Somayajulu 1443afaf5a2dSDavid Somayajulu return srb; 1444afaf5a2dSDavid Somayajulu } 1445afaf5a2dSDavid Somayajulu 1446afaf5a2dSDavid Somayajulu static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 1447afaf5a2dSDavid Somayajulu { 1448afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 1449afaf5a2dSDavid Somayajulu 1450afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 14515f7186c8SFUJITA Tomonori scsi_dma_unmap(cmd); 1452afaf5a2dSDavid Somayajulu srb->flags &= ~SRB_DMA_VALID; 1453afaf5a2dSDavid Somayajulu } 14545369887aSVikas Chaudhary CMD_SP(cmd) = NULL; 1455afaf5a2dSDavid Somayajulu } 1456afaf5a2dSDavid Somayajulu 145709a0f719SVikas Chaudhary void qla4xxx_srb_compl(struct kref *ref) 1458afaf5a2dSDavid Somayajulu { 145909a0f719SVikas Chaudhary struct srb *srb = container_of(ref, struct srb, srb_ref); 1460afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 146109a0f719SVikas Chaudhary struct scsi_qla_host *ha = srb->ha; 1462afaf5a2dSDavid Somayajulu 1463afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1464afaf5a2dSDavid Somayajulu 1465afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1466afaf5a2dSDavid Somayajulu 1467afaf5a2dSDavid Somayajulu cmd->scsi_done(cmd); 1468afaf5a2dSDavid Somayajulu } 1469afaf5a2dSDavid Somayajulu 1470afaf5a2dSDavid Somayajulu /** 1471afaf5a2dSDavid Somayajulu * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 14728f0722caSVikas Chaudhary * @host: scsi host 1473afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 1474afaf5a2dSDavid Somayajulu * 1475afaf5a2dSDavid Somayajulu * Remarks: 1476afaf5a2dSDavid Somayajulu * This routine is invoked by Linux to send a SCSI command to the driver. 1477afaf5a2dSDavid Somayajulu * The mid-level driver tries to ensure that queuecommand never gets 1478afaf5a2dSDavid Somayajulu * invoked concurrently with itself or the interrupt handler (although 1479afaf5a2dSDavid Somayajulu * the interrupt handler may call this routine as part of request- 1480afaf5a2dSDavid Somayajulu * completion handling). Unfortunely, it sometimes calls the scheduler 1481afaf5a2dSDavid Somayajulu * in interrupt context which is a big NO! NO!. 1482afaf5a2dSDavid Somayajulu **/ 14838f0722caSVikas Chaudhary static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 1484afaf5a2dSDavid Somayajulu { 14858f0722caSVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(host); 1486afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 14877fb1921bSMike Christie struct iscsi_cls_session *sess = ddb_entry->sess; 1488afaf5a2dSDavid Somayajulu struct srb *srb; 1489afaf5a2dSDavid Somayajulu int rval; 1490afaf5a2dSDavid Somayajulu 14912232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 14922232be0dSLalit Chandivade if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 14932232be0dSLalit Chandivade cmd->result = DID_NO_CONNECT << 16; 14942232be0dSLalit Chandivade else 14952232be0dSLalit Chandivade cmd->result = DID_REQUEUE << 16; 14962232be0dSLalit Chandivade goto qc_fail_command; 14972232be0dSLalit Chandivade } 14982232be0dSLalit Chandivade 14997fb1921bSMike Christie if (!sess) { 15007fb1921bSMike Christie cmd->result = DID_IMM_RETRY << 16; 15017fb1921bSMike Christie goto qc_fail_command; 15027fb1921bSMike Christie } 15037fb1921bSMike Christie 15047fb1921bSMike Christie rval = iscsi_session_chkready(sess); 15057fb1921bSMike Christie if (rval) { 15067fb1921bSMike Christie cmd->result = rval; 15077fb1921bSMike Christie goto qc_fail_command; 15087fb1921bSMike Christie } 15097fb1921bSMike Christie 1510f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1511f4f5df23SVikas Chaudhary test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1512f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1513f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1514f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 1515f4f5df23SVikas Chaudhary !test_bit(AF_ONLINE, &ha->flags) || 1516b3a271a9SManish Rangankar !test_bit(AF_LINK_UP, &ha->flags) || 1517f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 1518477ffb9dSDavid C Somayajulu goto qc_host_busy; 1519477ffb9dSDavid C Somayajulu 15208f0722caSVikas Chaudhary srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 1521afaf5a2dSDavid Somayajulu if (!srb) 15228f0722caSVikas Chaudhary goto qc_host_busy; 1523afaf5a2dSDavid Somayajulu 1524afaf5a2dSDavid Somayajulu rval = qla4xxx_send_command_to_isp(ha, srb); 1525afaf5a2dSDavid Somayajulu if (rval != QLA_SUCCESS) 1526afaf5a2dSDavid Somayajulu goto qc_host_busy_free_sp; 1527afaf5a2dSDavid Somayajulu 1528afaf5a2dSDavid Somayajulu return 0; 1529afaf5a2dSDavid Somayajulu 1530afaf5a2dSDavid Somayajulu qc_host_busy_free_sp: 1531afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1532afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1533afaf5a2dSDavid Somayajulu 1534afaf5a2dSDavid Somayajulu qc_host_busy: 1535afaf5a2dSDavid Somayajulu return SCSI_MLQUEUE_HOST_BUSY; 1536afaf5a2dSDavid Somayajulu 1537afaf5a2dSDavid Somayajulu qc_fail_command: 15388f0722caSVikas Chaudhary cmd->scsi_done(cmd); 1539afaf5a2dSDavid Somayajulu 1540afaf5a2dSDavid Somayajulu return 0; 1541afaf5a2dSDavid Somayajulu } 1542afaf5a2dSDavid Somayajulu 1543afaf5a2dSDavid Somayajulu /** 1544afaf5a2dSDavid Somayajulu * qla4xxx_mem_free - frees memory allocated to adapter 1545afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1546afaf5a2dSDavid Somayajulu * 1547afaf5a2dSDavid Somayajulu * Frees memory previously allocated by qla4xxx_mem_alloc 1548afaf5a2dSDavid Somayajulu **/ 1549afaf5a2dSDavid Somayajulu static void qla4xxx_mem_free(struct scsi_qla_host *ha) 1550afaf5a2dSDavid Somayajulu { 1551afaf5a2dSDavid Somayajulu if (ha->queues) 1552afaf5a2dSDavid Somayajulu dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 1553afaf5a2dSDavid Somayajulu ha->queues_dma); 1554afaf5a2dSDavid Somayajulu 1555afaf5a2dSDavid Somayajulu ha->queues_len = 0; 1556afaf5a2dSDavid Somayajulu ha->queues = NULL; 1557afaf5a2dSDavid Somayajulu ha->queues_dma = 0; 1558afaf5a2dSDavid Somayajulu ha->request_ring = NULL; 1559afaf5a2dSDavid Somayajulu ha->request_dma = 0; 1560afaf5a2dSDavid Somayajulu ha->response_ring = NULL; 1561afaf5a2dSDavid Somayajulu ha->response_dma = 0; 1562afaf5a2dSDavid Somayajulu ha->shadow_regs = NULL; 1563afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = 0; 1564afaf5a2dSDavid Somayajulu 1565afaf5a2dSDavid Somayajulu /* Free srb pool. */ 1566afaf5a2dSDavid Somayajulu if (ha->srb_mempool) 1567afaf5a2dSDavid Somayajulu mempool_destroy(ha->srb_mempool); 1568afaf5a2dSDavid Somayajulu 1569afaf5a2dSDavid Somayajulu ha->srb_mempool = NULL; 1570afaf5a2dSDavid Somayajulu 1571b3a271a9SManish Rangankar if (ha->chap_dma_pool) 1572b3a271a9SManish Rangankar dma_pool_destroy(ha->chap_dma_pool); 1573b3a271a9SManish Rangankar 1574afaf5a2dSDavid Somayajulu /* release io space registers */ 1575f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1576f4f5df23SVikas Chaudhary if (ha->nx_pcibase) 1577f4f5df23SVikas Chaudhary iounmap( 1578f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)ha->nx_pcibase); 1579f4f5df23SVikas Chaudhary } else if (ha->reg) 1580afaf5a2dSDavid Somayajulu iounmap(ha->reg); 1581afaf5a2dSDavid Somayajulu pci_release_regions(ha->pdev); 1582afaf5a2dSDavid Somayajulu } 1583afaf5a2dSDavid Somayajulu 1584afaf5a2dSDavid Somayajulu /** 1585afaf5a2dSDavid Somayajulu * qla4xxx_mem_alloc - allocates memory for use by adapter. 1586afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 1587afaf5a2dSDavid Somayajulu * 1588afaf5a2dSDavid Somayajulu * Allocates DMA memory for request and response queues. Also allocates memory 1589afaf5a2dSDavid Somayajulu * for srbs. 1590afaf5a2dSDavid Somayajulu **/ 1591afaf5a2dSDavid Somayajulu static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 1592afaf5a2dSDavid Somayajulu { 1593afaf5a2dSDavid Somayajulu unsigned long align; 1594afaf5a2dSDavid Somayajulu 1595afaf5a2dSDavid Somayajulu /* Allocate contiguous block of DMA memory for queues. */ 1596afaf5a2dSDavid Somayajulu ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1597afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 1598afaf5a2dSDavid Somayajulu sizeof(struct shadow_regs) + 1599afaf5a2dSDavid Somayajulu MEM_ALIGN_VALUE + 1600afaf5a2dSDavid Somayajulu (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 1601afaf5a2dSDavid Somayajulu ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 1602afaf5a2dSDavid Somayajulu &ha->queues_dma, GFP_KERNEL); 1603afaf5a2dSDavid Somayajulu if (ha->queues == NULL) { 1604c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1605afaf5a2dSDavid Somayajulu "Memory Allocation failed - queues.\n"); 1606afaf5a2dSDavid Somayajulu 1607afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1608afaf5a2dSDavid Somayajulu } 1609afaf5a2dSDavid Somayajulu memset(ha->queues, 0, ha->queues_len); 1610afaf5a2dSDavid Somayajulu 1611afaf5a2dSDavid Somayajulu /* 1612afaf5a2dSDavid Somayajulu * As per RISC alignment requirements -- the bus-address must be a 1613afaf5a2dSDavid Somayajulu * multiple of the request-ring size (in bytes). 1614afaf5a2dSDavid Somayajulu */ 1615afaf5a2dSDavid Somayajulu align = 0; 1616afaf5a2dSDavid Somayajulu if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 1617afaf5a2dSDavid Somayajulu align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 1618afaf5a2dSDavid Somayajulu (MEM_ALIGN_VALUE - 1)); 1619afaf5a2dSDavid Somayajulu 1620afaf5a2dSDavid Somayajulu /* Update request and response queue pointers. */ 1621afaf5a2dSDavid Somayajulu ha->request_dma = ha->queues_dma + align; 1622afaf5a2dSDavid Somayajulu ha->request_ring = (struct queue_entry *) (ha->queues + align); 1623afaf5a2dSDavid Somayajulu ha->response_dma = ha->queues_dma + align + 1624afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 1625afaf5a2dSDavid Somayajulu ha->response_ring = (struct queue_entry *) (ha->queues + align + 1626afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1627afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1628afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = ha->queues_dma + align + 1629afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1630afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 1631afaf5a2dSDavid Somayajulu ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 1632afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1633afaf5a2dSDavid Somayajulu QUEUE_SIZE) + 1634afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * 1635afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1636afaf5a2dSDavid Somayajulu 1637afaf5a2dSDavid Somayajulu /* Allocate memory for srb pool. */ 1638afaf5a2dSDavid Somayajulu ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 1639afaf5a2dSDavid Somayajulu mempool_free_slab, srb_cachep); 1640afaf5a2dSDavid Somayajulu if (ha->srb_mempool == NULL) { 1641c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1642afaf5a2dSDavid Somayajulu "Memory Allocation failed - SRB Pool.\n"); 1643afaf5a2dSDavid Somayajulu 1644afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1645afaf5a2dSDavid Somayajulu } 1646afaf5a2dSDavid Somayajulu 1647b3a271a9SManish Rangankar ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 1648b3a271a9SManish Rangankar CHAP_DMA_BLOCK_SIZE, 8, 0); 1649b3a271a9SManish Rangankar 1650b3a271a9SManish Rangankar if (ha->chap_dma_pool == NULL) { 1651b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 1652b3a271a9SManish Rangankar "%s: chap_dma_pool allocation failed..\n", __func__); 1653b3a271a9SManish Rangankar goto mem_alloc_error_exit; 1654b3a271a9SManish Rangankar } 1655b3a271a9SManish Rangankar 1656afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 1657afaf5a2dSDavid Somayajulu 1658afaf5a2dSDavid Somayajulu mem_alloc_error_exit: 1659afaf5a2dSDavid Somayajulu qla4xxx_mem_free(ha); 1660afaf5a2dSDavid Somayajulu return QLA_ERROR; 1661afaf5a2dSDavid Somayajulu } 1662afaf5a2dSDavid Somayajulu 1663afaf5a2dSDavid Somayajulu /** 1664f4f5df23SVikas Chaudhary * qla4_8xxx_check_fw_alive - Check firmware health 1665f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1666f4f5df23SVikas Chaudhary * 1667f4f5df23SVikas Chaudhary * Context: Interrupt 1668f4f5df23SVikas Chaudhary **/ 1669f4f5df23SVikas Chaudhary static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 1670f4f5df23SVikas Chaudhary { 1671f4f5df23SVikas Chaudhary uint32_t fw_heartbeat_counter, halt_status; 1672f4f5df23SVikas Chaudhary 1673f4f5df23SVikas Chaudhary fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 16742232be0dSLalit Chandivade /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 16752232be0dSLalit Chandivade if (fw_heartbeat_counter == 0xffffffff) { 16762232be0dSLalit Chandivade DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 16772232be0dSLalit Chandivade "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 16782232be0dSLalit Chandivade ha->host_no, __func__)); 16792232be0dSLalit Chandivade return; 16802232be0dSLalit Chandivade } 1681f4f5df23SVikas Chaudhary 1682f4f5df23SVikas Chaudhary if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 1683f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat++; 1684f4f5df23SVikas Chaudhary /* FW not alive after 2 seconds */ 1685f4f5df23SVikas Chaudhary if (ha->seconds_since_last_heartbeat == 2) { 1686f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat = 0; 1687f4f5df23SVikas Chaudhary halt_status = qla4_8xxx_rd_32(ha, 1688f4f5df23SVikas Chaudhary QLA82XX_PEG_HALT_STATUS1); 168968d92ebfSVikas Chaudhary 169068d92ebfSVikas Chaudhary ql4_printk(KERN_INFO, ha, 169168d92ebfSVikas Chaudhary "scsi(%ld): %s, Dumping hw/fw registers:\n " 169268d92ebfSVikas Chaudhary " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:" 169368d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:" 169468d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:" 169568d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_4_PC: 0x%x\n", 169668d92ebfSVikas Chaudhary ha->host_no, __func__, halt_status, 169768d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, 169868d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 169968d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 170068d92ebfSVikas Chaudhary 0x3c), 170168d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 170268d92ebfSVikas Chaudhary 0x3c), 170368d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 170468d92ebfSVikas Chaudhary 0x3c), 170568d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 170668d92ebfSVikas Chaudhary 0x3c), 170768d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 170868d92ebfSVikas Chaudhary 0x3c)); 170921033639SNilesh Javali 1710f4f5df23SVikas Chaudhary /* Since we cannot change dev_state in interrupt 1711f4f5df23SVikas Chaudhary * context, set appropriate DPC flag then wakeup 1712f4f5df23SVikas Chaudhary * DPC */ 1713f4f5df23SVikas Chaudhary if (halt_status & HALT_STATUS_UNRECOVERABLE) 1714f4f5df23SVikas Chaudhary set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 1715f4f5df23SVikas Chaudhary else { 1716f4f5df23SVikas Chaudhary printk("scsi%ld: %s: detect abort needed!\n", 1717f4f5df23SVikas Chaudhary ha->host_no, __func__); 1718f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1719f4f5df23SVikas Chaudhary } 1720f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 172121033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 1722f4f5df23SVikas Chaudhary } 172399457d75SLalit Chandivade } else 172499457d75SLalit Chandivade ha->seconds_since_last_heartbeat = 0; 172599457d75SLalit Chandivade 1726f4f5df23SVikas Chaudhary ha->fw_heartbeat_counter = fw_heartbeat_counter; 1727f4f5df23SVikas Chaudhary } 1728f4f5df23SVikas Chaudhary 1729f4f5df23SVikas Chaudhary /** 1730f4f5df23SVikas Chaudhary * qla4_8xxx_watchdog - Poll dev state 1731f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1732f4f5df23SVikas Chaudhary * 1733f4f5df23SVikas Chaudhary * Context: Interrupt 1734f4f5df23SVikas Chaudhary **/ 1735f4f5df23SVikas Chaudhary void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 1736f4f5df23SVikas Chaudhary { 1737f4f5df23SVikas Chaudhary uint32_t dev_state; 1738f4f5df23SVikas Chaudhary 1739f4f5df23SVikas Chaudhary dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 1740f4f5df23SVikas Chaudhary 1741f4f5df23SVikas Chaudhary /* don't poll if reset is going on */ 1742d56a1f7bSLalit Chandivade if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1743d56a1f7bSLalit Chandivade test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1744977f46a4SVikas Chaudhary test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 1745f4f5df23SVikas Chaudhary if (dev_state == QLA82XX_DEV_NEED_RESET && 1746f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 17473930b8c1SVikas Chaudhary if (!ql4xdontresethba) { 17483930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: " 17493930b8c1SVikas Chaudhary "NEED RESET!\n", __func__); 1750f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 1751f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 175221033639SNilesh Javali qla4xxx_mailbox_premature_completion(ha); 17533930b8c1SVikas Chaudhary } 1754f4f5df23SVikas Chaudhary } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT && 1755f4f5df23SVikas Chaudhary !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 17563930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 17573930b8c1SVikas Chaudhary __func__); 1758f4f5df23SVikas Chaudhary set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 1759f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1760f4f5df23SVikas Chaudhary } else { 1761f4f5df23SVikas Chaudhary /* Check firmware health */ 1762f4f5df23SVikas Chaudhary qla4_8xxx_check_fw_alive(ha); 1763f4f5df23SVikas Chaudhary } 1764f4f5df23SVikas Chaudhary } 1765f4f5df23SVikas Chaudhary } 1766f4f5df23SVikas Chaudhary 1767f4f5df23SVikas Chaudhary /** 1768afaf5a2dSDavid Somayajulu * qla4xxx_timer - checks every second for work to do. 1769afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1770afaf5a2dSDavid Somayajulu **/ 1771afaf5a2dSDavid Somayajulu static void qla4xxx_timer(struct scsi_qla_host *ha) 1772afaf5a2dSDavid Somayajulu { 1773afaf5a2dSDavid Somayajulu int start_dpc = 0; 17742232be0dSLalit Chandivade uint16_t w; 17752232be0dSLalit Chandivade 17762232be0dSLalit Chandivade /* If we are in the middle of AER/EEH processing 17772232be0dSLalit Chandivade * skip any processing and reschedule the timer 17782232be0dSLalit Chandivade */ 17792232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 17802232be0dSLalit Chandivade mod_timer(&ha->timer, jiffies + HZ); 17812232be0dSLalit Chandivade return; 17822232be0dSLalit Chandivade } 17832232be0dSLalit Chandivade 17842232be0dSLalit Chandivade /* Hardware read to trigger an EEH error during mailbox waits. */ 17852232be0dSLalit Chandivade if (!pci_channel_offline(ha->pdev)) 17862232be0dSLalit Chandivade pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 1787afaf5a2dSDavid Somayajulu 1788f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1789f4f5df23SVikas Chaudhary qla4_8xxx_watchdog(ha); 1790f4f5df23SVikas Chaudhary } 1791f4f5df23SVikas Chaudhary 1792f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 1793afaf5a2dSDavid Somayajulu /* Check for heartbeat interval. */ 1794afaf5a2dSDavid Somayajulu if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 1795afaf5a2dSDavid Somayajulu ha->heartbeat_interval != 0) { 1796afaf5a2dSDavid Somayajulu ha->seconds_since_last_heartbeat++; 1797afaf5a2dSDavid Somayajulu if (ha->seconds_since_last_heartbeat > 1798afaf5a2dSDavid Somayajulu ha->heartbeat_interval + 2) 1799afaf5a2dSDavid Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 1800afaf5a2dSDavid Somayajulu } 1801f4f5df23SVikas Chaudhary } 1802afaf5a2dSDavid Somayajulu 1803afaf5a2dSDavid Somayajulu /* Wakeup the dpc routine for this adapter, if needed. */ 18041b46807eSLalit Chandivade if (start_dpc || 1805afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1806afaf5a2dSDavid Somayajulu test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 1807afaf5a2dSDavid Somayajulu test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 1808f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 1809afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1810afaf5a2dSDavid Somayajulu test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 1811065aa1b4SVikas Chaudhary test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 1812f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1813f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 18141b46807eSLalit Chandivade test_bit(DPC_AEN, &ha->dpc_flags)) { 1815afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 1816afaf5a2dSDavid Somayajulu " - dpc flags = 0x%lx\n", 1817afaf5a2dSDavid Somayajulu ha->host_no, __func__, ha->dpc_flags)); 1818f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 1819afaf5a2dSDavid Somayajulu } 1820afaf5a2dSDavid Somayajulu 1821afaf5a2dSDavid Somayajulu /* Reschedule timer thread to call us back in one second */ 1822afaf5a2dSDavid Somayajulu mod_timer(&ha->timer, jiffies + HZ); 1823afaf5a2dSDavid Somayajulu 1824afaf5a2dSDavid Somayajulu DEBUG2(ha->seconds_since_last_intr++); 1825afaf5a2dSDavid Somayajulu } 1826afaf5a2dSDavid Somayajulu 1827afaf5a2dSDavid Somayajulu /** 1828afaf5a2dSDavid Somayajulu * qla4xxx_cmd_wait - waits for all outstanding commands to complete 1829afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1830afaf5a2dSDavid Somayajulu * 1831afaf5a2dSDavid Somayajulu * This routine stalls the driver until all outstanding commands are returned. 1832afaf5a2dSDavid Somayajulu * Caller must release the Hardware Lock prior to calling this routine. 1833afaf5a2dSDavid Somayajulu **/ 1834afaf5a2dSDavid Somayajulu static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 1835afaf5a2dSDavid Somayajulu { 1836afaf5a2dSDavid Somayajulu uint32_t index = 0; 1837afaf5a2dSDavid Somayajulu unsigned long flags; 1838afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 1839afaf5a2dSDavid Somayajulu 1840f4f5df23SVikas Chaudhary unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 1841f4f5df23SVikas Chaudhary 1842f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 1843f4f5df23SVikas Chaudhary "complete\n", WAIT_CMD_TOV)); 1844f4f5df23SVikas Chaudhary 1845f4f5df23SVikas Chaudhary while (!time_after_eq(jiffies, wtime)) { 1846afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1847afaf5a2dSDavid Somayajulu /* Find a command that hasn't completed. */ 1848afaf5a2dSDavid Somayajulu for (index = 0; index < ha->host->can_queue; index++) { 1849afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, index); 1850a1e0063dSMike Christie /* 1851a1e0063dSMike Christie * We cannot just check if the index is valid, 1852a1e0063dSMike Christie * becase if we are run from the scsi eh, then 1853a1e0063dSMike Christie * the scsi/block layer is going to prevent 1854a1e0063dSMike Christie * the tag from being released. 1855a1e0063dSMike Christie */ 1856a1e0063dSMike Christie if (cmd != NULL && CMD_SP(cmd)) 1857afaf5a2dSDavid Somayajulu break; 1858afaf5a2dSDavid Somayajulu } 1859afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1860afaf5a2dSDavid Somayajulu 1861afaf5a2dSDavid Somayajulu /* If No Commands are pending, wait is complete */ 1862f4f5df23SVikas Chaudhary if (index == ha->host->can_queue) 1863f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1864afaf5a2dSDavid Somayajulu 1865afaf5a2dSDavid Somayajulu msleep(1000); 1866afaf5a2dSDavid Somayajulu } 1867f4f5df23SVikas Chaudhary /* If we timed out on waiting for commands to come back 1868f4f5df23SVikas Chaudhary * return ERROR. */ 1869f4f5df23SVikas Chaudhary return QLA_ERROR; 1870afaf5a2dSDavid Somayajulu } 1871afaf5a2dSDavid Somayajulu 1872f4f5df23SVikas Chaudhary int qla4xxx_hw_reset(struct scsi_qla_host *ha) 1873afaf5a2dSDavid Somayajulu { 1874afaf5a2dSDavid Somayajulu uint32_t ctrl_status; 1875477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1876477ffb9dSDavid C Somayajulu 1877477ffb9dSDavid C Somayajulu DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 1878afaf5a2dSDavid Somayajulu 1879f4f5df23SVikas Chaudhary if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 1880f4f5df23SVikas Chaudhary return QLA_ERROR; 1881f4f5df23SVikas Chaudhary 1882afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1883afaf5a2dSDavid Somayajulu 1884afaf5a2dSDavid Somayajulu /* 1885afaf5a2dSDavid Somayajulu * If the SCSI Reset Interrupt bit is set, clear it. 1886afaf5a2dSDavid Somayajulu * Otherwise, the Soft Reset won't work. 1887afaf5a2dSDavid Somayajulu */ 1888afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1889afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 1890afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1891afaf5a2dSDavid Somayajulu 1892afaf5a2dSDavid Somayajulu /* Issue Soft Reset */ 1893afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 1894afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1895afaf5a2dSDavid Somayajulu 1896afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1897f4f5df23SVikas Chaudhary return QLA_SUCCESS; 1898477ffb9dSDavid C Somayajulu } 1899477ffb9dSDavid C Somayajulu 1900477ffb9dSDavid C Somayajulu /** 1901477ffb9dSDavid C Somayajulu * qla4xxx_soft_reset - performs soft reset. 1902477ffb9dSDavid C Somayajulu * @ha: Pointer to host adapter structure. 1903477ffb9dSDavid C Somayajulu **/ 1904477ffb9dSDavid C Somayajulu int qla4xxx_soft_reset(struct scsi_qla_host *ha) 1905477ffb9dSDavid C Somayajulu { 1906477ffb9dSDavid C Somayajulu uint32_t max_wait_time; 1907477ffb9dSDavid C Somayajulu unsigned long flags = 0; 1908f931c534SVikas Chaudhary int status; 1909477ffb9dSDavid C Somayajulu uint32_t ctrl_status; 1910477ffb9dSDavid C Somayajulu 1911f931c534SVikas Chaudhary status = qla4xxx_hw_reset(ha); 1912f931c534SVikas Chaudhary if (status != QLA_SUCCESS) 1913f931c534SVikas Chaudhary return status; 1914afaf5a2dSDavid Somayajulu 1915f931c534SVikas Chaudhary status = QLA_ERROR; 1916afaf5a2dSDavid Somayajulu /* Wait until the Network Reset Intr bit is cleared */ 1917afaf5a2dSDavid Somayajulu max_wait_time = RESET_INTR_TOV; 1918afaf5a2dSDavid Somayajulu do { 1919afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1920afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1921afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1922afaf5a2dSDavid Somayajulu 1923afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 1924afaf5a2dSDavid Somayajulu break; 1925afaf5a2dSDavid Somayajulu 1926afaf5a2dSDavid Somayajulu msleep(1000); 1927afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1928afaf5a2dSDavid Somayajulu 1929afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 1930afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_WARNING 1931afaf5a2dSDavid Somayajulu "scsi%ld: Network Reset Intr not cleared by " 1932afaf5a2dSDavid Somayajulu "Network function, clearing it now!\n", 1933afaf5a2dSDavid Somayajulu ha->host_no)); 1934afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1935afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 1936afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1937afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1938afaf5a2dSDavid Somayajulu } 1939afaf5a2dSDavid Somayajulu 1940afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 1941afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 1942afaf5a2dSDavid Somayajulu do { 1943afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1944afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1945afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1946afaf5a2dSDavid Somayajulu 1947afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SOFT_RESET) == 0) { 1948afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 1949afaf5a2dSDavid Somayajulu break; 1950afaf5a2dSDavid Somayajulu } 1951afaf5a2dSDavid Somayajulu 1952afaf5a2dSDavid Somayajulu msleep(1000); 1953afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1954afaf5a2dSDavid Somayajulu 1955afaf5a2dSDavid Somayajulu /* 1956afaf5a2dSDavid Somayajulu * Also, make sure that the SCSI Reset Interrupt bit has been cleared 1957afaf5a2dSDavid Somayajulu * after the soft reset has taken place. 1958afaf5a2dSDavid Somayajulu */ 1959afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1960afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1961afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 1962afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 1963afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1964afaf5a2dSDavid Somayajulu } 1965afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1966afaf5a2dSDavid Somayajulu 1967afaf5a2dSDavid Somayajulu /* If soft reset fails then most probably the bios on other 1968afaf5a2dSDavid Somayajulu * function is also enabled. 1969afaf5a2dSDavid Somayajulu * Since the initialization is sequential the other fn 1970afaf5a2dSDavid Somayajulu * wont be able to acknowledge the soft reset. 1971afaf5a2dSDavid Somayajulu * Issue a force soft reset to workaround this scenario. 1972afaf5a2dSDavid Somayajulu */ 1973afaf5a2dSDavid Somayajulu if (max_wait_time == 0) { 1974afaf5a2dSDavid Somayajulu /* Issue Force Soft Reset */ 1975afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1976afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 1977afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 1978afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1979afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 1980afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 1981afaf5a2dSDavid Somayajulu do { 1982afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 1983afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 1984afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 1985afaf5a2dSDavid Somayajulu 1986afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 1987afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 1988afaf5a2dSDavid Somayajulu break; 1989afaf5a2dSDavid Somayajulu } 1990afaf5a2dSDavid Somayajulu 1991afaf5a2dSDavid Somayajulu msleep(1000); 1992afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 1993afaf5a2dSDavid Somayajulu } 1994afaf5a2dSDavid Somayajulu 1995afaf5a2dSDavid Somayajulu return status; 1996afaf5a2dSDavid Somayajulu } 1997afaf5a2dSDavid Somayajulu 1998afaf5a2dSDavid Somayajulu /** 1999f4f5df23SVikas Chaudhary * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 2000afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2001f4f5df23SVikas Chaudhary * @res: returned scsi status 2002afaf5a2dSDavid Somayajulu * 2003afaf5a2dSDavid Somayajulu * This routine is called just prior to a HARD RESET to return all 2004afaf5a2dSDavid Somayajulu * outstanding commands back to the Operating System. 2005afaf5a2dSDavid Somayajulu * Caller should make sure that the following locks are released 2006afaf5a2dSDavid Somayajulu * before this calling routine: Hardware lock, and io_request_lock. 2007afaf5a2dSDavid Somayajulu **/ 2008f4f5df23SVikas Chaudhary static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 2009afaf5a2dSDavid Somayajulu { 2010afaf5a2dSDavid Somayajulu struct srb *srb; 2011afaf5a2dSDavid Somayajulu int i; 2012afaf5a2dSDavid Somayajulu unsigned long flags; 2013afaf5a2dSDavid Somayajulu 2014afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2015afaf5a2dSDavid Somayajulu for (i = 0; i < ha->host->can_queue; i++) { 2016afaf5a2dSDavid Somayajulu srb = qla4xxx_del_from_active_array(ha, i); 2017afaf5a2dSDavid Somayajulu if (srb != NULL) { 2018f4f5df23SVikas Chaudhary srb->cmd->result = res; 201909a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 2020afaf5a2dSDavid Somayajulu } 2021afaf5a2dSDavid Somayajulu } 2022afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2023afaf5a2dSDavid Somayajulu } 2024afaf5a2dSDavid Somayajulu 2025f4f5df23SVikas Chaudhary void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 2026f4f5df23SVikas Chaudhary { 2027f4f5df23SVikas Chaudhary clear_bit(AF_ONLINE, &ha->flags); 2028f4f5df23SVikas Chaudhary 2029f4f5df23SVikas Chaudhary /* Disable the board */ 2030f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 2031f4f5df23SVikas Chaudhary 2032f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2033f4f5df23SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2034f4f5df23SVikas Chaudhary clear_bit(AF_INIT_DONE, &ha->flags); 2035f4f5df23SVikas Chaudhary } 2036f4f5df23SVikas Chaudhary 2037b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 2038b3a271a9SManish Rangankar { 2039b3a271a9SManish Rangankar struct iscsi_session *sess; 2040b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2041b3a271a9SManish Rangankar 2042b3a271a9SManish Rangankar sess = cls_session->dd_data; 2043b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2044b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 2045b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED); 2046b3a271a9SManish Rangankar } 2047b3a271a9SManish Rangankar 2048afaf5a2dSDavid Somayajulu /** 2049afaf5a2dSDavid Somayajulu * qla4xxx_recover_adapter - recovers adapter after a fatal error 2050afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2051afaf5a2dSDavid Somayajulu **/ 2052f4f5df23SVikas Chaudhary static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 2053afaf5a2dSDavid Somayajulu { 2054f4f5df23SVikas Chaudhary int status = QLA_ERROR; 2055f4f5df23SVikas Chaudhary uint8_t reset_chip = 0; 2056afaf5a2dSDavid Somayajulu 2057afaf5a2dSDavid Somayajulu /* Stall incoming I/O until we are done */ 2058f4f5df23SVikas Chaudhary scsi_block_requests(ha->host); 2059afaf5a2dSDavid Somayajulu clear_bit(AF_ONLINE, &ha->flags); 2060b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 206150a29aecSMike Christie 2062f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 2063afaf5a2dSDavid Somayajulu 2064f4f5df23SVikas Chaudhary set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2065afaf5a2dSDavid Somayajulu 2066b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 2067b3a271a9SManish Rangankar 2068f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2069f4f5df23SVikas Chaudhary reset_chip = 1; 2070afaf5a2dSDavid Somayajulu 2071f4f5df23SVikas Chaudhary /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 2072f4f5df23SVikas Chaudhary * do not reset adapter, jump to initialize_adapter */ 2073f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2074f4f5df23SVikas Chaudhary status = QLA_SUCCESS; 2075f4f5df23SVikas Chaudhary goto recover_ha_init_adapter; 2076afaf5a2dSDavid Somayajulu } 2077afaf5a2dSDavid Somayajulu 2078f4f5df23SVikas Chaudhary /* For the ISP-82xx adapter, issue a stop_firmware if invoked 2079f4f5df23SVikas Chaudhary * from eh_host_reset or ioctl module */ 2080f4f5df23SVikas Chaudhary if (is_qla8022(ha) && !reset_chip && 2081f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2082f4f5df23SVikas Chaudhary 2083f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2084f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing stop_firmware...\n", 2085f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2086f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_firmware(ha); 2087f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 20882bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2089f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2090f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2091f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2092f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2093f4f5df23SVikas Chaudhary } else { 2094f4f5df23SVikas Chaudhary /* If the stop_firmware fails then 2095f4f5df23SVikas Chaudhary * reset the entire chip */ 2096f4f5df23SVikas Chaudhary reset_chip = 1; 2097f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2098f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2099f4f5df23SVikas Chaudhary } 2100f4f5df23SVikas Chaudhary } 2101f4f5df23SVikas Chaudhary 2102f4f5df23SVikas Chaudhary /* Issue full chip reset if recovering from a catastrophic error, 2103f4f5df23SVikas Chaudhary * or if stop_firmware fails for ISP-82xx. 2104f4f5df23SVikas Chaudhary * This is the default case for ISP-4xxx */ 2105f4f5df23SVikas Chaudhary if (!is_qla8022(ha) || reset_chip) { 21062bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2107f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2108f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2109f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2110f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2111f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing chip reset..\n", 2112f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2113f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_chip(ha); 2114f4f5df23SVikas Chaudhary } 2115f4f5df23SVikas Chaudhary 2116f4f5df23SVikas Chaudhary /* Flush any pending ddb changed AENs */ 2117f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2118f4f5df23SVikas Chaudhary 2119f4f5df23SVikas Chaudhary recover_ha_init_adapter: 2120f4f5df23SVikas Chaudhary /* Upon successful firmware/chip reset, re-initialize the adapter */ 2121f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 2122f4f5df23SVikas Chaudhary /* For ISP-4xxx, force function 1 to always initialize 2123f4f5df23SVikas Chaudhary * before function 3 to prevent both funcions from 2124f4f5df23SVikas Chaudhary * stepping on top of the other */ 2125f4f5df23SVikas Chaudhary if (!is_qla8022(ha) && (ha->mac_index == 3)) 2126f4f5df23SVikas Chaudhary ssleep(6); 2127f4f5df23SVikas Chaudhary 2128f4f5df23SVikas Chaudhary /* NOTE: AF_ONLINE flag set upon successful completion of 2129f4f5df23SVikas Chaudhary * qla4xxx_initialize_adapter */ 21300e7e8501SManish Rangankar status = qla4xxx_initialize_adapter(ha); 2131f4f5df23SVikas Chaudhary } 2132f4f5df23SVikas Chaudhary 2133f4f5df23SVikas Chaudhary /* Retry failed adapter initialization, if necessary 2134f4f5df23SVikas Chaudhary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 2135f4f5df23SVikas Chaudhary * case to prevent ping-pong resets between functions */ 2136f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags) && 2137f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2138afaf5a2dSDavid Somayajulu /* Adapter initialization failed, see if we can retry 2139f4f5df23SVikas Chaudhary * resetting the ha. 2140f4f5df23SVikas Chaudhary * Since we don't want to block the DPC for too long 2141f4f5df23SVikas Chaudhary * with multiple resets in the same thread, 2142f4f5df23SVikas Chaudhary * utilize DPC to retry */ 2143afaf5a2dSDavid Somayajulu if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 2144afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 2145afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - retrying " 2146afaf5a2dSDavid Somayajulu "(%d) more times\n", ha->host_no, 2147afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2148afaf5a2dSDavid Somayajulu set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2149afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2150afaf5a2dSDavid Somayajulu } else { 2151afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt > 0) { 2152afaf5a2dSDavid Somayajulu /* Schedule another Reset HA--DPC will retry */ 2153afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt--; 2154afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - " 2155afaf5a2dSDavid Somayajulu "retry remaining %d\n", 2156afaf5a2dSDavid Somayajulu ha->host_no, 2157afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2158afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2159afaf5a2dSDavid Somayajulu } 2160afaf5a2dSDavid Somayajulu 2161afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt == 0) { 2162afaf5a2dSDavid Somayajulu /* Recover adapter retries have been exhausted. 2163afaf5a2dSDavid Somayajulu * Adapter DEAD */ 2164afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter " 2165afaf5a2dSDavid Somayajulu "failed - board disabled\n", 2166afaf5a2dSDavid Somayajulu ha->host_no)); 2167f4f5df23SVikas Chaudhary qla4xxx_dead_adapter_cleanup(ha); 2168afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2169afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2170f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, 2171afaf5a2dSDavid Somayajulu &ha->dpc_flags); 2172afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2173afaf5a2dSDavid Somayajulu } 2174afaf5a2dSDavid Somayajulu } 2175afaf5a2dSDavid Somayajulu } else { 2176afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2177f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2178afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2179afaf5a2dSDavid Somayajulu } 2180afaf5a2dSDavid Somayajulu 2181afaf5a2dSDavid Somayajulu ha->adapter_error_count++; 2182afaf5a2dSDavid Somayajulu 2183f4f5df23SVikas Chaudhary if (test_bit(AF_ONLINE, &ha->flags)) 2184f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2185afaf5a2dSDavid Somayajulu 2186f4f5df23SVikas Chaudhary scsi_unblock_requests(ha->host); 2187f4f5df23SVikas Chaudhary 2188f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2189f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 219025985edcSLucas De Marchi status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 2191f4f5df23SVikas Chaudhary 2192afaf5a2dSDavid Somayajulu return status; 2193afaf5a2dSDavid Somayajulu } 2194afaf5a2dSDavid Somayajulu 2195b3a271a9SManish Rangankar static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 2196b3a271a9SManish Rangankar { 2197b3a271a9SManish Rangankar struct iscsi_session *sess; 2198b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2199b3a271a9SManish Rangankar struct scsi_qla_host *ha; 2200b3a271a9SManish Rangankar 2201b3a271a9SManish Rangankar sess = cls_session->dd_data; 2202b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2203b3a271a9SManish Rangankar ha = ddb_entry->ha; 2204b3a271a9SManish Rangankar if (!iscsi_is_session_online(cls_session)) { 2205b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 2206b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 2207b3a271a9SManish Rangankar " unblock session\n", ha->host_no, __func__, 2208b3a271a9SManish Rangankar ddb_entry->fw_ddb_index); 2209b3a271a9SManish Rangankar iscsi_unblock_session(ddb_entry->sess); 2210b3a271a9SManish Rangankar } else { 2211b3a271a9SManish Rangankar /* Trigger relogin */ 2212b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, 2213b3a271a9SManish Rangankar ISCSI_ERR_CONN_FAILED); 2214b3a271a9SManish Rangankar } 2215b3a271a9SManish Rangankar } 2216b3a271a9SManish Rangankar } 2217b3a271a9SManish Rangankar 22182d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 22192d7924e6SVikas Chaudhary { 2220b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 22212d7924e6SVikas Chaudhary } 22222d7924e6SVikas Chaudhary 2223f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 2224f4f5df23SVikas Chaudhary { 22251b46807eSLalit Chandivade if (ha->dpc_thread) 2226f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 2227f4f5df23SVikas Chaudhary } 2228f4f5df23SVikas Chaudhary 2229afaf5a2dSDavid Somayajulu /** 2230afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 2231afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 2232afaf5a2dSDavid Somayajulu * 2233afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 2234afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 2235afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 2236afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 2237afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 2238afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 2239afaf5a2dSDavid Somayajulu **/ 2240c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 2241afaf5a2dSDavid Somayajulu { 2242c4028958SDavid Howells struct scsi_qla_host *ha = 2243c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 2244477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 2245afaf5a2dSDavid Somayajulu 2246f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 2247f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 2248f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 2249afaf5a2dSDavid Somayajulu 2250afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 2251afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 22521b46807eSLalit Chandivade return; 2253afaf5a2dSDavid Somayajulu 22542232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 22552232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 22562232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 22571b46807eSLalit Chandivade return; 22582232be0dSLalit Chandivade } 22592232be0dSLalit Chandivade 2260f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2261f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 2262f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 2263f4f5df23SVikas Chaudhary qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 2264f4f5df23SVikas Chaudhary QLA82XX_DEV_FAILED); 2265f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 2266f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 2267f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 2268f4f5df23SVikas Chaudhary } 2269f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 2270f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 2271f4f5df23SVikas Chaudhary } 2272f4f5df23SVikas Chaudhary } 2273f4f5df23SVikas Chaudhary 2274f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 2275f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2276afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2277f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 2278f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 2279f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 2280f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2281f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2282f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2283f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2284f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 2285f4f5df23SVikas Chaudhary } 2286f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2287f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2288f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 2289afaf5a2dSDavid Somayajulu 2290477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2291afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 2292afaf5a2dSDavid Somayajulu 2293afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 2294afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 2295afaf5a2dSDavid Somayajulu if (--wait_time == 0) 2296afaf5a2dSDavid Somayajulu break; 2297afaf5a2dSDavid Somayajulu msleep(1000); 2298afaf5a2dSDavid Somayajulu } 2299afaf5a2dSDavid Somayajulu if (wait_time == 0) 2300afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 2301afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 2302afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 2303f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2304477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 2305477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2306f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 2307477ffb9dSDavid C Somayajulu } 2308477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2309477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 2310f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2311afaf5a2dSDavid Somayajulu } 2312afaf5a2dSDavid Somayajulu } 2313afaf5a2dSDavid Somayajulu 2314f4f5df23SVikas Chaudhary dpc_post_reset_ha: 2315afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 2316afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 2317afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 2318afaf5a2dSDavid Somayajulu 2319afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 2320afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 2321afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 2322afaf5a2dSDavid Somayajulu 2323065aa1b4SVikas Chaudhary /* ---- link change? --- */ 2324065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 2325065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 2326065aa1b4SVikas Chaudhary /* ---- link down? --- */ 23272d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2328065aa1b4SVikas Chaudhary } else { 2329065aa1b4SVikas Chaudhary /* ---- link up? --- * 2330065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 2331065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 2332065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 2333065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 2334065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 2335065aa1b4SVikas Chaudhary 23362d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 2337065aa1b4SVikas Chaudhary } 2338065aa1b4SVikas Chaudhary } 2339afaf5a2dSDavid Somayajulu } 2340afaf5a2dSDavid Somayajulu 2341afaf5a2dSDavid Somayajulu /** 2342afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 2343afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 2344afaf5a2dSDavid Somayajulu **/ 2345afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 2346afaf5a2dSDavid Somayajulu { 2347afaf5a2dSDavid Somayajulu 2348afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 2349afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 2350f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2351afaf5a2dSDavid Somayajulu } 2352afaf5a2dSDavid Somayajulu 2353afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 2354afaf5a2dSDavid Somayajulu if (ha->timer_active) 2355afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 2356afaf5a2dSDavid Somayajulu 2357f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 2358f4f5df23SVikas Chaudhary if (ha->dpc_thread) 2359f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 2360f4f5df23SVikas Chaudhary 2361b3a271a9SManish Rangankar /* Kill the kernel thread for this host */ 2362b3a271a9SManish Rangankar if (ha->task_wq) 2363b3a271a9SManish Rangankar destroy_workqueue(ha->task_wq); 2364b3a271a9SManish Rangankar 2365f4f5df23SVikas Chaudhary /* Put firmware in known state */ 2366f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 2367f4f5df23SVikas Chaudhary 2368f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2369f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 2370f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 2371f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 2372f4f5df23SVikas Chaudhary } 2373f4f5df23SVikas Chaudhary 2374afaf5a2dSDavid Somayajulu /* Detach interrupts */ 2375afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 2376f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 2377afaf5a2dSDavid Somayajulu 2378bee4fe8eSDavid C Somayajulu /* free extra memory */ 2379bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 2380f4f5df23SVikas Chaudhary } 2381bee4fe8eSDavid C Somayajulu 2382f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 2383f4f5df23SVikas Chaudhary { 2384f4f5df23SVikas Chaudhary int status = 0; 2385f4f5df23SVikas Chaudhary uint8_t revision_id; 2386f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 2387f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 2388afaf5a2dSDavid Somayajulu 2389f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 2390f4f5df23SVikas Chaudhary if (status) { 2391f4f5df23SVikas Chaudhary printk(KERN_WARNING 2392f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 2393f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 2394f4f5df23SVikas Chaudhary goto iospace_error_exit; 2395f4f5df23SVikas Chaudhary } 2396f4f5df23SVikas Chaudhary 2397f4f5df23SVikas Chaudhary pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id); 2398f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 2399f4f5df23SVikas Chaudhary __func__, revision_id)); 2400f4f5df23SVikas Chaudhary ha->revision_id = revision_id; 2401f4f5df23SVikas Chaudhary 2402f4f5df23SVikas Chaudhary /* remap phys address */ 2403f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 2404f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 2405f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 2406f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 2407f4f5df23SVikas Chaudhary 2408f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 2409f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 2410f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 2411f4f5df23SVikas Chaudhary printk(KERN_ERR 2412f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 2413f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 2414f4f5df23SVikas Chaudhary goto iospace_error_exit; 2415f4f5df23SVikas Chaudhary } 2416f4f5df23SVikas Chaudhary 2417f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 2418f4f5df23SVikas Chaudhary 2419f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 2420f4f5df23SVikas Chaudhary ha->qla4_8xxx_reg = 2421f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 2422f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 2423f4f5df23SVikas Chaudhary 2424f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 2425f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 2426f4f5df23SVikas Chaudhary 24272657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 24282657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 2429f4f5df23SVikas Chaudhary 24302657c800SShyam Sundar return 0; 2431f4f5df23SVikas Chaudhary iospace_error_exit: 2432f4f5df23SVikas Chaudhary return -ENOMEM; 2433afaf5a2dSDavid Somayajulu } 2434afaf5a2dSDavid Somayajulu 2435afaf5a2dSDavid Somayajulu /*** 2436afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 2437afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 2438afaf5a2dSDavid Somayajulu * 2439afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 2440afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 2441afaf5a2dSDavid Somayajulu **/ 2442f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 2443afaf5a2dSDavid Somayajulu { 2444afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 2445afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 2446afaf5a2dSDavid Somayajulu 2447afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 2448afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 2449afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 2450afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 2451afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 2452c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2453afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 2454afaf5a2dSDavid Somayajulu pio = 0; 2455afaf5a2dSDavid Somayajulu } 2456afaf5a2dSDavid Somayajulu } else { 2457c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 2458afaf5a2dSDavid Somayajulu pio = 0; 2459afaf5a2dSDavid Somayajulu } 2460afaf5a2dSDavid Somayajulu 2461afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 2462afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 2463afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 2464afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 2465afaf5a2dSDavid Somayajulu 2466afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 2467c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2468afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 2469afaf5a2dSDavid Somayajulu 2470afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2471afaf5a2dSDavid Somayajulu } 2472c2660df3SVikas Chaudhary 2473afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 2474c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2475afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 2476afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2477afaf5a2dSDavid Somayajulu } 2478afaf5a2dSDavid Somayajulu 2479afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 2480c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 2481afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 2482afaf5a2dSDavid Somayajulu 2483afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2484afaf5a2dSDavid Somayajulu } 2485afaf5a2dSDavid Somayajulu 2486afaf5a2dSDavid Somayajulu ha->pio_address = pio; 2487afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 2488afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 2489afaf5a2dSDavid Somayajulu if (!ha->reg) { 2490c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 2491afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 2492afaf5a2dSDavid Somayajulu 2493afaf5a2dSDavid Somayajulu goto iospace_error_exit; 2494afaf5a2dSDavid Somayajulu } 2495afaf5a2dSDavid Somayajulu 2496afaf5a2dSDavid Somayajulu return 0; 2497afaf5a2dSDavid Somayajulu 2498afaf5a2dSDavid Somayajulu iospace_error_exit: 2499afaf5a2dSDavid Somayajulu return -ENOMEM; 2500afaf5a2dSDavid Somayajulu } 2501afaf5a2dSDavid Somayajulu 2502f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 2503f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 2504f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 2505f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 2506f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 2507f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 2508f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 2509f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 2510f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 2511f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 2512f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 2513f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 2514f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 2515f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 2516f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 2517f4f5df23SVikas Chaudhary }; 2518f4f5df23SVikas Chaudhary 2519f4f5df23SVikas Chaudhary static struct isp_operations qla4_8xxx_isp_ops = { 2520f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 2521f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 2522f4f5df23SVikas Chaudhary .disable_intrs = qla4_8xxx_disable_intrs, 2523f4f5df23SVikas Chaudhary .enable_intrs = qla4_8xxx_enable_intrs, 2524f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 2525f4f5df23SVikas Chaudhary .intr_handler = qla4_8xxx_intr_handler, 2526f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4_8xxx_interrupt_service_routine, 2527f4f5df23SVikas Chaudhary .reset_chip = qla4_8xxx_isp_reset, 2528f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 2529f4f5df23SVikas Chaudhary .queue_iocb = qla4_8xxx_queue_iocb, 2530f4f5df23SVikas Chaudhary .complete_iocb = qla4_8xxx_complete_iocb, 2531f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out, 2532f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in, 2533f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 2534f4f5df23SVikas Chaudhary }; 2535f4f5df23SVikas Chaudhary 2536f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2537f4f5df23SVikas Chaudhary { 2538f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 2539f4f5df23SVikas Chaudhary } 2540f4f5df23SVikas Chaudhary 2541f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 2542f4f5df23SVikas Chaudhary { 2543f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out)); 2544f4f5df23SVikas Chaudhary } 2545f4f5df23SVikas Chaudhary 2546f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2547f4f5df23SVikas Chaudhary { 2548f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 2549f4f5df23SVikas Chaudhary } 2550f4f5df23SVikas Chaudhary 2551f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 2552f4f5df23SVikas Chaudhary { 2553f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in)); 2554f4f5df23SVikas Chaudhary } 2555f4f5df23SVikas Chaudhary 25562a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 25572a991c21SManish Rangankar { 25582a991c21SManish Rangankar struct scsi_qla_host *ha = data; 25592a991c21SManish Rangankar char *str = buf; 25602a991c21SManish Rangankar int rc; 25612a991c21SManish Rangankar 25622a991c21SManish Rangankar switch (type) { 25632a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 25642a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 25652a991c21SManish Rangankar break; 25662a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 25672a991c21SManish Rangankar rc = sprintf(str, "0\n"); 25682a991c21SManish Rangankar break; 25692a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 25702a991c21SManish Rangankar rc = sysfs_format_mac(str, ha->my_mac, 25712a991c21SManish Rangankar MAC_ADDR_LEN); 25722a991c21SManish Rangankar break; 25732a991c21SManish Rangankar default: 25742a991c21SManish Rangankar rc = -ENOSYS; 25752a991c21SManish Rangankar break; 25762a991c21SManish Rangankar } 25772a991c21SManish Rangankar return rc; 25782a991c21SManish Rangankar } 25792a991c21SManish Rangankar 25802a991c21SManish Rangankar static mode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 25812a991c21SManish Rangankar { 25822a991c21SManish Rangankar int rc; 25832a991c21SManish Rangankar 25842a991c21SManish Rangankar switch (type) { 25852a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 25862a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 25872a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 25882a991c21SManish Rangankar rc = S_IRUGO; 25892a991c21SManish Rangankar break; 25902a991c21SManish Rangankar default: 25912a991c21SManish Rangankar rc = 0; 25922a991c21SManish Rangankar break; 25932a991c21SManish Rangankar } 25942a991c21SManish Rangankar return rc; 25952a991c21SManish Rangankar } 25962a991c21SManish Rangankar 25972a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 25982a991c21SManish Rangankar { 25992a991c21SManish Rangankar struct scsi_qla_host *ha = data; 26002a991c21SManish Rangankar char *str = buf; 26012a991c21SManish Rangankar int rc; 26022a991c21SManish Rangankar 26032a991c21SManish Rangankar switch (type) { 26042a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 26052a991c21SManish Rangankar rc = sprintf(str, "%s\n", ha->name_string); 26062a991c21SManish Rangankar break; 26072a991c21SManish Rangankar default: 26082a991c21SManish Rangankar rc = -ENOSYS; 26092a991c21SManish Rangankar break; 26102a991c21SManish Rangankar } 26112a991c21SManish Rangankar return rc; 26122a991c21SManish Rangankar } 26132a991c21SManish Rangankar 26142a991c21SManish Rangankar static mode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 26152a991c21SManish Rangankar { 26162a991c21SManish Rangankar int rc; 26172a991c21SManish Rangankar 26182a991c21SManish Rangankar switch (type) { 26192a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 26202a991c21SManish Rangankar rc = S_IRUGO; 26212a991c21SManish Rangankar break; 26222a991c21SManish Rangankar default: 26232a991c21SManish Rangankar rc = 0; 26242a991c21SManish Rangankar break; 26252a991c21SManish Rangankar } 26262a991c21SManish Rangankar return rc; 26272a991c21SManish Rangankar } 26282a991c21SManish Rangankar 26292a991c21SManish Rangankar static ssize_t 26302a991c21SManish Rangankar qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 26312a991c21SManish Rangankar char *buf) 26322a991c21SManish Rangankar { 26332a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 26342a991c21SManish Rangankar char *str = buf; 26352a991c21SManish Rangankar int rc; 26362a991c21SManish Rangankar 26372a991c21SManish Rangankar switch (type) { 26382a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 26392a991c21SManish Rangankar rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 26402a991c21SManish Rangankar break; 26412a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 26422a991c21SManish Rangankar if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 26432a991c21SManish Rangankar rc = sprintf(buf, "%pI4\n", 26442a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 26452a991c21SManish Rangankar else 26462a991c21SManish Rangankar rc = sprintf(str, "%pI6\n", 26472a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 26482a991c21SManish Rangankar break; 26492a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 26502a991c21SManish Rangankar rc = sprintf(str, "%d\n", boot_conn->dest_port); 26512a991c21SManish Rangankar break; 26522a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 26532a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26542a991c21SManish Rangankar boot_conn->chap.target_chap_name_length, 26552a991c21SManish Rangankar (char *)&boot_conn->chap.target_chap_name); 26562a991c21SManish Rangankar break; 26572a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 26582a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26592a991c21SManish Rangankar boot_conn->chap.target_secret_length, 26602a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret); 26612a991c21SManish Rangankar break; 26622a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 26632a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26642a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length, 26652a991c21SManish Rangankar (char *)&boot_conn->chap.intr_chap_name); 26662a991c21SManish Rangankar break; 26672a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 26682a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 26692a991c21SManish Rangankar boot_conn->chap.intr_secret_length, 26702a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret); 26712a991c21SManish Rangankar break; 26722a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 26732a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 26742a991c21SManish Rangankar break; 26752a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 26762a991c21SManish Rangankar rc = sprintf(str, "0\n"); 26772a991c21SManish Rangankar break; 26782a991c21SManish Rangankar default: 26792a991c21SManish Rangankar rc = -ENOSYS; 26802a991c21SManish Rangankar break; 26812a991c21SManish Rangankar } 26822a991c21SManish Rangankar return rc; 26832a991c21SManish Rangankar } 26842a991c21SManish Rangankar 26852a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 26862a991c21SManish Rangankar { 26872a991c21SManish Rangankar struct scsi_qla_host *ha = data; 26882a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 26892a991c21SManish Rangankar 26902a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 26912a991c21SManish Rangankar } 26922a991c21SManish Rangankar 26932a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 26942a991c21SManish Rangankar { 26952a991c21SManish Rangankar struct scsi_qla_host *ha = data; 26962a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 26972a991c21SManish Rangankar 26982a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 26992a991c21SManish Rangankar } 27002a991c21SManish Rangankar 27012a991c21SManish Rangankar static mode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 27022a991c21SManish Rangankar { 27032a991c21SManish Rangankar int rc; 27042a991c21SManish Rangankar 27052a991c21SManish Rangankar switch (type) { 27062a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 27072a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 27082a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 27092a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 27102a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 27112a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 27122a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 27132a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 27142a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 27152a991c21SManish Rangankar rc = S_IRUGO; 27162a991c21SManish Rangankar break; 27172a991c21SManish Rangankar default: 27182a991c21SManish Rangankar rc = 0; 27192a991c21SManish Rangankar break; 27202a991c21SManish Rangankar } 27212a991c21SManish Rangankar return rc; 27222a991c21SManish Rangankar } 27232a991c21SManish Rangankar 27242a991c21SManish Rangankar static void qla4xxx_boot_release(void *data) 27252a991c21SManish Rangankar { 27262a991c21SManish Rangankar struct scsi_qla_host *ha = data; 27272a991c21SManish Rangankar 27282a991c21SManish Rangankar scsi_host_put(ha->host); 27292a991c21SManish Rangankar } 27302a991c21SManish Rangankar 27312a991c21SManish Rangankar static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 27322a991c21SManish Rangankar { 27332a991c21SManish Rangankar dma_addr_t buf_dma; 27342a991c21SManish Rangankar uint32_t addr, pri_addr, sec_addr; 27352a991c21SManish Rangankar uint32_t offset; 27362a991c21SManish Rangankar uint16_t func_num; 27372a991c21SManish Rangankar uint8_t val; 27382a991c21SManish Rangankar uint8_t *buf = NULL; 27392a991c21SManish Rangankar size_t size = 13 * sizeof(uint8_t); 27402a991c21SManish Rangankar int ret = QLA_SUCCESS; 27412a991c21SManish Rangankar 27422a991c21SManish Rangankar func_num = PCI_FUNC(ha->pdev->devfn); 27432a991c21SManish Rangankar 27442a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 27452a991c21SManish Rangankar "%s: Get FW boot info for 0x%x func %d\n", __func__, 27462a991c21SManish Rangankar (is_qla4032(ha) ? PCI_DEVICE_ID_QLOGIC_ISP4032 : 27472a991c21SManish Rangankar PCI_DEVICE_ID_QLOGIC_ISP8022), func_num)); 27482a991c21SManish Rangankar 27492a991c21SManish Rangankar if (is_qla4032(ha)) { 27502a991c21SManish Rangankar if (func_num == 1) { 27512a991c21SManish Rangankar addr = NVRAM_PORT0_BOOT_MODE; 27522a991c21SManish Rangankar pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 27532a991c21SManish Rangankar sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 27542a991c21SManish Rangankar } else if (func_num == 3) { 27552a991c21SManish Rangankar addr = NVRAM_PORT1_BOOT_MODE; 27562a991c21SManish Rangankar pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 27572a991c21SManish Rangankar sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 27582a991c21SManish Rangankar } else { 27592a991c21SManish Rangankar ret = QLA_ERROR; 27602a991c21SManish Rangankar goto exit_boot_info; 27612a991c21SManish Rangankar } 27622a991c21SManish Rangankar 27632a991c21SManish Rangankar /* Check Boot Mode */ 27642a991c21SManish Rangankar val = rd_nvram_byte(ha, addr); 27652a991c21SManish Rangankar if (!(val & 0x07)) { 27662a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 27672a991c21SManish Rangankar "%s: Failed Boot options : 0x%x\n", 27682a991c21SManish Rangankar __func__, val)); 27692a991c21SManish Rangankar ret = QLA_ERROR; 27702a991c21SManish Rangankar goto exit_boot_info; 27712a991c21SManish Rangankar } 27722a991c21SManish Rangankar 27732a991c21SManish Rangankar /* get primary valid target index */ 27742a991c21SManish Rangankar val = rd_nvram_byte(ha, pri_addr); 27752a991c21SManish Rangankar if (val & BIT_7) 27762a991c21SManish Rangankar ddb_index[0] = (val & 0x7f); 27772a991c21SManish Rangankar else 27782a991c21SManish Rangankar ddb_index[0] = 0; 27792a991c21SManish Rangankar 27802a991c21SManish Rangankar /* get secondary valid target index */ 27812a991c21SManish Rangankar val = rd_nvram_byte(ha, sec_addr); 27822a991c21SManish Rangankar if (val & BIT_7) 27832a991c21SManish Rangankar ddb_index[1] = (val & 0x7f); 27842a991c21SManish Rangankar else 27852a991c21SManish Rangankar ddb_index[1] = 1; 27862a991c21SManish Rangankar 27872a991c21SManish Rangankar } else if (is_qla8022(ha)) { 27882a991c21SManish Rangankar buf = dma_alloc_coherent(&ha->pdev->dev, size, 27892a991c21SManish Rangankar &buf_dma, GFP_KERNEL); 27902a991c21SManish Rangankar if (!buf) { 27912a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 27922a991c21SManish Rangankar "%s: Unable to allocate dma buffer\n", 27932a991c21SManish Rangankar __func__)); 27942a991c21SManish Rangankar ret = QLA_ERROR; 27952a991c21SManish Rangankar goto exit_boot_info; 27962a991c21SManish Rangankar } 27972a991c21SManish Rangankar 27982a991c21SManish Rangankar if (ha->port_num == 0) 27992a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT0; 28002a991c21SManish Rangankar else if (ha->port_num == 1) 28012a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT1; 28022a991c21SManish Rangankar else { 28032a991c21SManish Rangankar ret = QLA_ERROR; 28042a991c21SManish Rangankar goto exit_boot_info_free; 28052a991c21SManish Rangankar } 28062a991c21SManish Rangankar addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 28072a991c21SManish Rangankar offset; 28082a991c21SManish Rangankar if (qla4xxx_get_flash(ha, buf_dma, addr, 28092a991c21SManish Rangankar 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 28102a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 28112a991c21SManish Rangankar "failed\n", ha->host_no, __func__)); 28122a991c21SManish Rangankar ret = QLA_ERROR; 28132a991c21SManish Rangankar goto exit_boot_info_free; 28142a991c21SManish Rangankar } 28152a991c21SManish Rangankar /* Check Boot Mode */ 28162a991c21SManish Rangankar if (!(buf[1] & 0x07)) { 28172a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 28182a991c21SManish Rangankar "Failed: Boot options : 0x%x\n", 28192a991c21SManish Rangankar buf[1])); 28202a991c21SManish Rangankar ret = QLA_ERROR; 28212a991c21SManish Rangankar goto exit_boot_info_free; 28222a991c21SManish Rangankar } 28232a991c21SManish Rangankar 28242a991c21SManish Rangankar /* get primary valid target index */ 28252a991c21SManish Rangankar if (buf[2] & BIT_7) 28262a991c21SManish Rangankar ddb_index[0] = buf[2] & 0x7f; 28272a991c21SManish Rangankar else 28282a991c21SManish Rangankar ddb_index[0] = 0; 28292a991c21SManish Rangankar 28302a991c21SManish Rangankar /* get secondary valid target index */ 28312a991c21SManish Rangankar if (buf[11] & BIT_7) 28322a991c21SManish Rangankar ddb_index[1] = buf[11] & 0x7f; 28332a991c21SManish Rangankar else 28342a991c21SManish Rangankar ddb_index[1] = 1; 28352a991c21SManish Rangankar 28362a991c21SManish Rangankar } else { 28372a991c21SManish Rangankar ret = QLA_ERROR; 28382a991c21SManish Rangankar goto exit_boot_info; 28392a991c21SManish Rangankar } 28402a991c21SManish Rangankar 28412a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 28422a991c21SManish Rangankar " target ID %d\n", __func__, ddb_index[0], 28432a991c21SManish Rangankar ddb_index[1])); 28442a991c21SManish Rangankar 28452a991c21SManish Rangankar exit_boot_info_free: 28462a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 28472a991c21SManish Rangankar exit_boot_info: 28482a991c21SManish Rangankar return ret; 28492a991c21SManish Rangankar } 28502a991c21SManish Rangankar 28512a991c21SManish Rangankar static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 28522a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess, 28532a991c21SManish Rangankar uint16_t ddb_index) 28542a991c21SManish Rangankar { 28552a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 28562a991c21SManish Rangankar struct dev_db_entry *fw_ddb_entry; 28572a991c21SManish Rangankar dma_addr_t fw_ddb_entry_dma; 28582a991c21SManish Rangankar uint16_t idx; 28592a991c21SManish Rangankar uint16_t options; 28602a991c21SManish Rangankar int ret = QLA_SUCCESS; 28612a991c21SManish Rangankar 28622a991c21SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 28632a991c21SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 28642a991c21SManish Rangankar if (!fw_ddb_entry) { 28652a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 28662a991c21SManish Rangankar "%s: Unable to allocate dma buffer.\n", 28672a991c21SManish Rangankar __func__)); 28682a991c21SManish Rangankar ret = QLA_ERROR; 28692a991c21SManish Rangankar return ret; 28702a991c21SManish Rangankar } 28712a991c21SManish Rangankar 28722a991c21SManish Rangankar if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 28732a991c21SManish Rangankar fw_ddb_entry_dma, ddb_index)) { 28742a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 28752a991c21SManish Rangankar "%s: Flash DDB read Failed\n", __func__)); 28762a991c21SManish Rangankar ret = QLA_ERROR; 28772a991c21SManish Rangankar goto exit_boot_target; 28782a991c21SManish Rangankar } 28792a991c21SManish Rangankar 28802a991c21SManish Rangankar /* Update target name and IP from DDB */ 28812a991c21SManish Rangankar memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 28822a991c21SManish Rangankar min(sizeof(boot_sess->target_name), 28832a991c21SManish Rangankar sizeof(fw_ddb_entry->iscsi_name))); 28842a991c21SManish Rangankar 28852a991c21SManish Rangankar options = le16_to_cpu(fw_ddb_entry->options); 28862a991c21SManish Rangankar if (options & DDB_OPT_IPV6_DEVICE) { 28872a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 28882a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 28892a991c21SManish Rangankar } else { 28902a991c21SManish Rangankar boot_conn->dest_ipaddr.ip_type = 0x1; 28912a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 28922a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 28932a991c21SManish Rangankar } 28942a991c21SManish Rangankar 28952a991c21SManish Rangankar boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 28962a991c21SManish Rangankar 28972a991c21SManish Rangankar /* update chap information */ 28982a991c21SManish Rangankar idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 28992a991c21SManish Rangankar 29002a991c21SManish Rangankar if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 29012a991c21SManish Rangankar 29022a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 29032a991c21SManish Rangankar 29042a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 29052a991c21SManish Rangankar target_chap_name, 29062a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret, 29072a991c21SManish Rangankar idx); 29082a991c21SManish Rangankar if (ret) { 29092a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 29102a991c21SManish Rangankar ret = QLA_ERROR; 29112a991c21SManish Rangankar goto exit_boot_target; 29122a991c21SManish Rangankar } 29132a991c21SManish Rangankar 29142a991c21SManish Rangankar boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 29152a991c21SManish Rangankar boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 29162a991c21SManish Rangankar } 29172a991c21SManish Rangankar 29182a991c21SManish Rangankar if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 29192a991c21SManish Rangankar 29202a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 29212a991c21SManish Rangankar 29222a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 29232a991c21SManish Rangankar intr_chap_name, 29242a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret, 29252a991c21SManish Rangankar (idx + 1)); 29262a991c21SManish Rangankar if (ret) { 29272a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 29282a991c21SManish Rangankar ret = QLA_ERROR; 29292a991c21SManish Rangankar goto exit_boot_target; 29302a991c21SManish Rangankar } 29312a991c21SManish Rangankar 29322a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 29332a991c21SManish Rangankar boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 29342a991c21SManish Rangankar } 29352a991c21SManish Rangankar 29362a991c21SManish Rangankar exit_boot_target: 29372a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 29382a991c21SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 29392a991c21SManish Rangankar return ret; 29402a991c21SManish Rangankar } 29412a991c21SManish Rangankar 29422a991c21SManish Rangankar static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 29432a991c21SManish Rangankar { 29442a991c21SManish Rangankar uint16_t ddb_index[2]; 29452a991c21SManish Rangankar int ret = QLA_SUCCESS; 29462a991c21SManish Rangankar 29472a991c21SManish Rangankar memset(ddb_index, 0, sizeof(ddb_index)); 29482a991c21SManish Rangankar ret = get_fw_boot_info(ha, ddb_index); 29492a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 29502a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 29512a991c21SManish Rangankar "%s: Failed to set boot info.\n", __func__)); 29522a991c21SManish Rangankar return ret; 29532a991c21SManish Rangankar } 29542a991c21SManish Rangankar 29552a991c21SManish Rangankar ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 29562a991c21SManish Rangankar ddb_index[0]); 29572a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 29582a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 29592a991c21SManish Rangankar "primary target\n", __func__)); 29602a991c21SManish Rangankar } 29612a991c21SManish Rangankar 29622a991c21SManish Rangankar ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 29632a991c21SManish Rangankar ddb_index[1]); 29642a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 29652a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 29662a991c21SManish Rangankar "secondary target\n", __func__)); 29672a991c21SManish Rangankar } 29682a991c21SManish Rangankar return ret; 29692a991c21SManish Rangankar } 29702a991c21SManish Rangankar 29712a991c21SManish Rangankar static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 29722a991c21SManish Rangankar { 29732a991c21SManish Rangankar struct iscsi_boot_kobj *boot_kobj; 29742a991c21SManish Rangankar 29752a991c21SManish Rangankar if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 29762a991c21SManish Rangankar return 0; 29772a991c21SManish Rangankar 29782a991c21SManish Rangankar ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 29792a991c21SManish Rangankar if (!ha->boot_kset) 29802a991c21SManish Rangankar goto kset_free; 29812a991c21SManish Rangankar 29822a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 29832a991c21SManish Rangankar goto kset_free; 29842a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 29852a991c21SManish Rangankar qla4xxx_show_boot_tgt_pri_info, 29862a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 29872a991c21SManish Rangankar qla4xxx_boot_release); 29882a991c21SManish Rangankar if (!boot_kobj) 29892a991c21SManish Rangankar goto put_host; 29902a991c21SManish Rangankar 29912a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 29922a991c21SManish Rangankar goto kset_free; 29932a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 29942a991c21SManish Rangankar qla4xxx_show_boot_tgt_sec_info, 29952a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 29962a991c21SManish Rangankar qla4xxx_boot_release); 29972a991c21SManish Rangankar if (!boot_kobj) 29982a991c21SManish Rangankar goto put_host; 29992a991c21SManish Rangankar 30002a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 30012a991c21SManish Rangankar goto kset_free; 30022a991c21SManish Rangankar boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 30032a991c21SManish Rangankar qla4xxx_show_boot_ini_info, 30042a991c21SManish Rangankar qla4xxx_ini_get_attr_visibility, 30052a991c21SManish Rangankar qla4xxx_boot_release); 30062a991c21SManish Rangankar if (!boot_kobj) 30072a991c21SManish Rangankar goto put_host; 30082a991c21SManish Rangankar 30092a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 30102a991c21SManish Rangankar goto kset_free; 30112a991c21SManish Rangankar boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 30122a991c21SManish Rangankar qla4xxx_show_boot_eth_info, 30132a991c21SManish Rangankar qla4xxx_eth_get_attr_visibility, 30142a991c21SManish Rangankar qla4xxx_boot_release); 30152a991c21SManish Rangankar if (!boot_kobj) 30162a991c21SManish Rangankar goto put_host; 30172a991c21SManish Rangankar 30182a991c21SManish Rangankar return 0; 30192a991c21SManish Rangankar 30202a991c21SManish Rangankar put_host: 30212a991c21SManish Rangankar scsi_host_put(ha->host); 30222a991c21SManish Rangankar kset_free: 30232a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 30242a991c21SManish Rangankar return -ENOMEM; 30252a991c21SManish Rangankar } 30262a991c21SManish Rangankar 3027afaf5a2dSDavid Somayajulu /** 3028afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 3029afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 3030afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 3031afaf5a2dSDavid Somayajulu * 3032afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 3033afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 3034afaf5a2dSDavid Somayajulu * the driver. 3035afaf5a2dSDavid Somayajulu **/ 3036afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 3037afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 3038afaf5a2dSDavid Somayajulu { 3039afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 3040afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 3041afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 3042afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 3043afaf5a2dSDavid Somayajulu char buf[34]; 3044f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 3045f9880e76SPrasanna Mumbai uint32_t dev_state; 3046afaf5a2dSDavid Somayajulu 3047afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 3048afaf5a2dSDavid Somayajulu return -1; 3049afaf5a2dSDavid Somayajulu 3050b3a271a9SManish Rangankar host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 3051afaf5a2dSDavid Somayajulu if (host == NULL) { 3052afaf5a2dSDavid Somayajulu printk(KERN_WARNING 3053afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 3054afaf5a2dSDavid Somayajulu goto probe_disable_device; 3055afaf5a2dSDavid Somayajulu } 3056afaf5a2dSDavid Somayajulu 3057afaf5a2dSDavid Somayajulu /* Clear our data area */ 3058b3a271a9SManish Rangankar ha = to_qla_host(host); 3059afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 3060afaf5a2dSDavid Somayajulu 3061afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 3062afaf5a2dSDavid Somayajulu ha->pdev = pdev; 3063afaf5a2dSDavid Somayajulu ha->host = host; 3064afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 3065afaf5a2dSDavid Somayajulu 30662232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 30672232be0dSLalit Chandivade 3068f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 3069f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3070f4f5df23SVikas Chaudhary ha->isp_ops = &qla4_8xxx_isp_ops; 3071f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 3072f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 3073f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 3074f4f5df23SVikas Chaudhary ha->curr_window = 255; 3075f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 3076f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 3077f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 3078f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 3079f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 3080f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 3081f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 3082f4f5df23SVikas Chaudhary } else { 3083f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 3084f4f5df23SVikas Chaudhary } 3085f4f5df23SVikas Chaudhary 30862232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 30872232be0dSLalit Chandivade if (is_qla8022(ha)) 30882232be0dSLalit Chandivade pdev->needs_freset = 1; 30892232be0dSLalit Chandivade 3090afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 3091f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 3092afaf5a2dSDavid Somayajulu if (ret) 3093f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 3094afaf5a2dSDavid Somayajulu 3095c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 3096afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 3097afaf5a2dSDavid Somayajulu 3098afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 3099afaf5a2dSDavid Somayajulu 3100afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 3101afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 3102afaf5a2dSDavid Somayajulu 3103afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 3104f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 3105afaf5a2dSDavid Somayajulu 3106afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 3107afaf5a2dSDavid Somayajulu 3108afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 3109afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 3110c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3111afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 3112afaf5a2dSDavid Somayajulu 3113afaf5a2dSDavid Somayajulu ret = -ENOMEM; 3114afaf5a2dSDavid Somayajulu goto probe_failed; 3115afaf5a2dSDavid Somayajulu } 3116afaf5a2dSDavid Somayajulu 3117b3a271a9SManish Rangankar host->cmd_per_lun = 3; 3118b3a271a9SManish Rangankar host->max_channel = 0; 3119b3a271a9SManish Rangankar host->max_lun = MAX_LUNS - 1; 3120b3a271a9SManish Rangankar host->max_id = MAX_TARGETS; 3121b3a271a9SManish Rangankar host->max_cmd_len = IOCB_MAX_CDB_LEN; 3122b3a271a9SManish Rangankar host->can_queue = MAX_SRBS ; 3123b3a271a9SManish Rangankar host->transportt = qla4xxx_scsi_transport; 3124b3a271a9SManish Rangankar 3125b3a271a9SManish Rangankar ret = scsi_init_shared_tag_map(host, MAX_SRBS); 3126b3a271a9SManish Rangankar if (ret) { 3127b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 3128b3a271a9SManish Rangankar "%s: scsi_init_shared_tag_map failed\n", __func__); 3129b3a271a9SManish Rangankar goto probe_failed; 3130b3a271a9SManish Rangankar } 3131b3a271a9SManish Rangankar 3132b3a271a9SManish Rangankar pci_set_drvdata(pdev, ha); 3133b3a271a9SManish Rangankar 3134b3a271a9SManish Rangankar ret = scsi_add_host(host, &pdev->dev); 3135b3a271a9SManish Rangankar if (ret) 3136b3a271a9SManish Rangankar goto probe_failed; 3137b3a271a9SManish Rangankar 3138f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 3139f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 3140f4f5df23SVikas Chaudhary 3141afaf5a2dSDavid Somayajulu /* 3142afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 3143afaf5a2dSDavid Somayajulu * firmware 3144afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 3145afaf5a2dSDavid Somayajulu */ 31460e7e8501SManish Rangankar status = qla4xxx_initialize_adapter(ha); 3147f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 3148f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 3149f9880e76SPrasanna Mumbai 3150f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 3151f9880e76SPrasanna Mumbai qla4_8xxx_idc_lock(ha); 3152f9880e76SPrasanna Mumbai dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 3153f9880e76SPrasanna Mumbai qla4_8xxx_idc_unlock(ha); 3154f9880e76SPrasanna Mumbai if (dev_state == QLA82XX_DEV_FAILED) { 3155f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 3156f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 3157f9880e76SPrasanna Mumbai __func__); 3158f9880e76SPrasanna Mumbai break; 3159f9880e76SPrasanna Mumbai } 3160f9880e76SPrasanna Mumbai } 3161afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 3162afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 3163f4f5df23SVikas Chaudhary 3164f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 3165f4f5df23SVikas Chaudhary continue; 3166f4f5df23SVikas Chaudhary 31670e7e8501SManish Rangankar status = qla4xxx_initialize_adapter(ha); 3168afaf5a2dSDavid Somayajulu } 3169f4f5df23SVikas Chaudhary 3170f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 3171c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 3172afaf5a2dSDavid Somayajulu 3173fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 3174fe998527SLalit Chandivade /* Put the device in failed state. */ 3175fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 3176fe998527SLalit Chandivade qla4_8xxx_idc_lock(ha); 3177fe998527SLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 3178fe998527SLalit Chandivade QLA82XX_DEV_FAILED); 3179fe998527SLalit Chandivade qla4_8xxx_idc_unlock(ha); 3180fe998527SLalit Chandivade } 3181afaf5a2dSDavid Somayajulu ret = -ENODEV; 3182b3a271a9SManish Rangankar goto remove_host; 3183afaf5a2dSDavid Somayajulu } 3184afaf5a2dSDavid Somayajulu 3185afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 3186afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 3187afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 3188afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 3189afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 3190afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 3191c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 3192afaf5a2dSDavid Somayajulu ret = -ENODEV; 3193b3a271a9SManish Rangankar goto remove_host; 3194afaf5a2dSDavid Somayajulu } 3195c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 3196afaf5a2dSDavid Somayajulu 3197b3a271a9SManish Rangankar sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 3198b3a271a9SManish Rangankar ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 3199b3a271a9SManish Rangankar if (!ha->task_wq) { 3200b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 3201b3a271a9SManish Rangankar ret = -ENODEV; 3202b3a271a9SManish Rangankar goto remove_host; 3203b3a271a9SManish Rangankar } 3204b3a271a9SManish Rangankar 3205f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 3206f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 3207f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 3208f4f5df23SVikas Chaudhary * mbx_intr_enable. 3209f4f5df23SVikas Chaudhary */ 3210f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 3211f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 3212afaf5a2dSDavid Somayajulu if (ret) { 3213f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 3214f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 3215b3a271a9SManish Rangankar goto remove_host; 3216afaf5a2dSDavid Somayajulu } 3217f4f5df23SVikas Chaudhary } 3218afaf5a2dSDavid Somayajulu 32192232be0dSLalit Chandivade pci_save_state(ha->pdev); 3220f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 3221afaf5a2dSDavid Somayajulu 3222afaf5a2dSDavid Somayajulu /* Start timer thread. */ 3223afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 3224afaf5a2dSDavid Somayajulu 3225afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 3226afaf5a2dSDavid Somayajulu 3227afaf5a2dSDavid Somayajulu printk(KERN_INFO 3228afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 3229afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 3230afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 3231afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 3232afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 3233ed1086e0SVikas Chaudhary 32342a991c21SManish Rangankar if (qla4xxx_setup_boot_info(ha)) 32352a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n", 32362a991c21SManish Rangankar __func__); 32372a991c21SManish Rangankar 3238ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 3239afaf5a2dSDavid Somayajulu return 0; 3240afaf5a2dSDavid Somayajulu 3241b3a271a9SManish Rangankar remove_host: 3242b3a271a9SManish Rangankar scsi_remove_host(ha->host); 3243b3a271a9SManish Rangankar 3244afaf5a2dSDavid Somayajulu probe_failed: 3245afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 3246f4f5df23SVikas Chaudhary 3247f4f5df23SVikas Chaudhary probe_failed_ioconfig: 32482232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 3249afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 3250afaf5a2dSDavid Somayajulu 3251afaf5a2dSDavid Somayajulu probe_disable_device: 3252afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 3253afaf5a2dSDavid Somayajulu 3254afaf5a2dSDavid Somayajulu return ret; 3255afaf5a2dSDavid Somayajulu } 3256afaf5a2dSDavid Somayajulu 3257afaf5a2dSDavid Somayajulu /** 32587eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 32597eece5a0SKaren Higgins * @ha: pointer to adapter structure 32607eece5a0SKaren Higgins * 32617eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 32627eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 32637eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 32647eece5a0SKaren Higgins **/ 32657eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 32667eece5a0SKaren Higgins { 32677eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 32687eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 32697eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 32707eece5a0SKaren Higgins 32717eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 32727eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 32737eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 32747eece5a0SKaren Higgins 32757eece5a0SKaren Higgins other_pdev = 32767eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 32777eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 32787eece5a0SKaren Higgins fn)); 32797eece5a0SKaren Higgins 32807eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 32817eece5a0SKaren Higgins if (other_pdev) { 32827eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 32837eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 32847eece5a0SKaren Higgins if (other_ha) { 32857eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 32867eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 32877eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 32887eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 32897eece5a0SKaren Higgins } 32907eece5a0SKaren Higgins } 32917eece5a0SKaren Higgins pci_dev_put(other_pdev); 32927eece5a0SKaren Higgins } 32937eece5a0SKaren Higgins } 32947eece5a0SKaren Higgins 32957eece5a0SKaren Higgins /** 3296afaf5a2dSDavid Somayajulu * qla4xxx_remove_adapter - calback function to remove adapter. 3297afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 3298afaf5a2dSDavid Somayajulu **/ 3299afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 3300afaf5a2dSDavid Somayajulu { 3301afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 3302afaf5a2dSDavid Somayajulu 3303afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 3304afaf5a2dSDavid Somayajulu 33057eece5a0SKaren Higgins if (!is_qla8022(ha)) 33067eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 3307bee4fe8eSDavid C Somayajulu 3308ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 3309ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 3310ed1086e0SVikas Chaudhary 33112a991c21SManish Rangankar if (ha->boot_kset) 33122a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 33132a991c21SManish Rangankar 3314afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 3315afaf5a2dSDavid Somayajulu 3316afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 3317afaf5a2dSDavid Somayajulu 3318afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 3319afaf5a2dSDavid Somayajulu 33202232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 3321f4f5df23SVikas Chaudhary pci_disable_device(pdev); 3322afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 3323afaf5a2dSDavid Somayajulu } 3324afaf5a2dSDavid Somayajulu 3325afaf5a2dSDavid Somayajulu /** 3326afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 3327afaf5a2dSDavid Somayajulu * @ha: HA context 3328afaf5a2dSDavid Somayajulu * 3329afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 3330afaf5a2dSDavid Somayajulu * supported addressing method. 3331afaf5a2dSDavid Somayajulu */ 333247975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 3333afaf5a2dSDavid Somayajulu { 3334afaf5a2dSDavid Somayajulu int retval; 3335afaf5a2dSDavid Somayajulu 3336afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 33376a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 33386a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 3339afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 3340afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 3341afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 3342afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 3343284901a9SYang Hongyang DMA_BIT_MASK(32)); 3344afaf5a2dSDavid Somayajulu } 3345afaf5a2dSDavid Somayajulu } else 3346284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 3347afaf5a2dSDavid Somayajulu } 3348afaf5a2dSDavid Somayajulu 3349afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 3350afaf5a2dSDavid Somayajulu { 3351b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 3352b3a271a9SManish Rangankar struct iscsi_session *sess; 3353b3a271a9SManish Rangankar struct ddb_entry *ddb; 33548bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 3355afaf5a2dSDavid Somayajulu 3356b3a271a9SManish Rangankar cls_sess = starget_to_session(sdev->sdev_target); 3357b3a271a9SManish Rangankar sess = cls_sess->dd_data; 3358b3a271a9SManish Rangankar ddb = sess->dd_data; 3359b3a271a9SManish Rangankar 3360afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 3361afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 33628bb4033dSVikas Chaudhary 33638bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 33648bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 33658bb4033dSVikas Chaudhary 33668bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 3367afaf5a2dSDavid Somayajulu return 0; 3368afaf5a2dSDavid Somayajulu } 3369afaf5a2dSDavid Somayajulu 3370afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 3371afaf5a2dSDavid Somayajulu { 3372afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 3373afaf5a2dSDavid Somayajulu return 0; 3374afaf5a2dSDavid Somayajulu } 3375afaf5a2dSDavid Somayajulu 3376afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 3377afaf5a2dSDavid Somayajulu { 3378afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 3379afaf5a2dSDavid Somayajulu } 3380afaf5a2dSDavid Somayajulu 3381afaf5a2dSDavid Somayajulu /** 3382afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 3383afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 3384fd589a8fSAnand Gadiyar * @index: index into the active_array 3385afaf5a2dSDavid Somayajulu * 3386afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 3387afaf5a2dSDavid Somayajulu **/ 3388f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 3389f4f5df23SVikas Chaudhary uint32_t index) 3390afaf5a2dSDavid Somayajulu { 3391afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 33925369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 3393afaf5a2dSDavid Somayajulu 33945369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 33955369887aSVikas Chaudhary if (!cmd) 3396afaf5a2dSDavid Somayajulu return srb; 3397afaf5a2dSDavid Somayajulu 33985369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 33995369887aSVikas Chaudhary if (!srb) 3400afaf5a2dSDavid Somayajulu return srb; 3401afaf5a2dSDavid Somayajulu 3402afaf5a2dSDavid Somayajulu /* update counters */ 3403afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 3404afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 3405afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 3406afaf5a2dSDavid Somayajulu if (srb->cmd) 34075369887aSVikas Chaudhary srb->cmd->host_scribble = 34085369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 3409afaf5a2dSDavid Somayajulu } 3410afaf5a2dSDavid Somayajulu return srb; 3411afaf5a2dSDavid Somayajulu } 3412afaf5a2dSDavid Somayajulu 3413afaf5a2dSDavid Somayajulu /** 3414afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 341509a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 3416afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 3417afaf5a2dSDavid Somayajulu * 3418afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 3419afaf5a2dSDavid Somayajulu * for some max time. 3420afaf5a2dSDavid Somayajulu **/ 3421afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 3422afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 3423afaf5a2dSDavid Somayajulu { 3424afaf5a2dSDavid Somayajulu int done = 0; 3425afaf5a2dSDavid Somayajulu struct srb *rp; 3426afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 34272232be0dSLalit Chandivade int ret = SUCCESS; 34282232be0dSLalit Chandivade 34292232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 34302232be0dSLalit Chandivade * by PCI AER driver 34312232be0dSLalit Chandivade */ 34322232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 34332232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 34342232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 34352232be0dSLalit Chandivade ha->host_no, __func__); 34362232be0dSLalit Chandivade return ret; 34372232be0dSLalit Chandivade } 3438afaf5a2dSDavid Somayajulu 3439afaf5a2dSDavid Somayajulu do { 3440afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 34415369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 3442afaf5a2dSDavid Somayajulu if (rp == NULL) { 3443afaf5a2dSDavid Somayajulu done++; 3444afaf5a2dSDavid Somayajulu break; 3445afaf5a2dSDavid Somayajulu } 3446afaf5a2dSDavid Somayajulu 3447afaf5a2dSDavid Somayajulu msleep(2000); 3448afaf5a2dSDavid Somayajulu } while (max_wait_time--); 3449afaf5a2dSDavid Somayajulu 3450afaf5a2dSDavid Somayajulu return done; 3451afaf5a2dSDavid Somayajulu } 3452afaf5a2dSDavid Somayajulu 3453afaf5a2dSDavid Somayajulu /** 3454afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 3455afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 3456afaf5a2dSDavid Somayajulu **/ 3457afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 3458afaf5a2dSDavid Somayajulu { 3459afaf5a2dSDavid Somayajulu unsigned long wait_online; 3460afaf5a2dSDavid Somayajulu 3461f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 3462afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 3463afaf5a2dSDavid Somayajulu 3464afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 3465afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 3466afaf5a2dSDavid Somayajulu 3467afaf5a2dSDavid Somayajulu msleep(2000); 3468afaf5a2dSDavid Somayajulu } 3469afaf5a2dSDavid Somayajulu 3470afaf5a2dSDavid Somayajulu return QLA_ERROR; 3471afaf5a2dSDavid Somayajulu } 3472afaf5a2dSDavid Somayajulu 3473afaf5a2dSDavid Somayajulu /** 3474ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 3475fd589a8fSAnand Gadiyar * @ha: pointer to HBA 3476afaf5a2dSDavid Somayajulu * @t: target id 3477afaf5a2dSDavid Somayajulu * @l: lun id 3478afaf5a2dSDavid Somayajulu * 3479afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 3480afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 3481afaf5a2dSDavid Somayajulu **/ 3482ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 3483ce545039SMike Christie struct scsi_target *stgt, 3484ce545039SMike Christie struct scsi_device *sdev) 3485afaf5a2dSDavid Somayajulu { 3486afaf5a2dSDavid Somayajulu int cnt; 3487afaf5a2dSDavid Somayajulu int status = 0; 3488afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 3489afaf5a2dSDavid Somayajulu 3490afaf5a2dSDavid Somayajulu /* 3491ce545039SMike Christie * Waiting for all commands for the designated target or dev 3492ce545039SMike Christie * in the active array 3493afaf5a2dSDavid Somayajulu */ 3494afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 3495afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 3496ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 3497ce545039SMike Christie (!sdev || sdev == cmd->device)) { 3498afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 3499afaf5a2dSDavid Somayajulu status++; 3500afaf5a2dSDavid Somayajulu break; 3501afaf5a2dSDavid Somayajulu } 3502afaf5a2dSDavid Somayajulu } 3503afaf5a2dSDavid Somayajulu } 3504afaf5a2dSDavid Somayajulu return status; 3505afaf5a2dSDavid Somayajulu } 3506afaf5a2dSDavid Somayajulu 3507afaf5a2dSDavid Somayajulu /** 350809a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 350909a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 351009a0f719SVikas Chaudhary * 351109a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 351209a0f719SVikas Chaudhary * command. 351309a0f719SVikas Chaudhary **/ 351409a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 351509a0f719SVikas Chaudhary { 351609a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 351709a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 351809a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 351992b3e5bbSMike Christie unsigned long flags; 352009a0f719SVikas Chaudhary struct srb *srb = NULL; 352109a0f719SVikas Chaudhary int ret = SUCCESS; 352209a0f719SVikas Chaudhary int wait = 0; 352309a0f719SVikas Chaudhary 3524c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 35255cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 35265cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 352709a0f719SVikas Chaudhary 352892b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 352909a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 353092b3e5bbSMike Christie if (!srb) { 353192b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 353209a0f719SVikas Chaudhary return SUCCESS; 353392b3e5bbSMike Christie } 353409a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 353592b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 353609a0f719SVikas Chaudhary 353709a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 353809a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 353909a0f719SVikas Chaudhary ha->host_no, id, lun)); 354009a0f719SVikas Chaudhary ret = FAILED; 354109a0f719SVikas Chaudhary } else { 354209a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 354309a0f719SVikas Chaudhary ha->host_no, id, lun)); 354409a0f719SVikas Chaudhary wait = 1; 354509a0f719SVikas Chaudhary } 354609a0f719SVikas Chaudhary 354709a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 354809a0f719SVikas Chaudhary 354909a0f719SVikas Chaudhary /* Wait for command to complete */ 355009a0f719SVikas Chaudhary if (wait) { 355109a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 355209a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 355309a0f719SVikas Chaudhary ha->host_no, id, lun)); 355409a0f719SVikas Chaudhary ret = FAILED; 355509a0f719SVikas Chaudhary } 355609a0f719SVikas Chaudhary } 355709a0f719SVikas Chaudhary 3558c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 355909a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 356025985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 356109a0f719SVikas Chaudhary 356209a0f719SVikas Chaudhary return ret; 356309a0f719SVikas Chaudhary } 356409a0f719SVikas Chaudhary 356509a0f719SVikas Chaudhary /** 3566afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 3567afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 3568afaf5a2dSDavid Somayajulu * 3569afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 3570afaf5a2dSDavid Somayajulu * specified target. 3571afaf5a2dSDavid Somayajulu **/ 3572afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 3573afaf5a2dSDavid Somayajulu { 3574afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 3575afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 3576afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 3577afaf5a2dSDavid Somayajulu 3578612f7348SKaren Higgins if (!ddb_entry) 3579afaf5a2dSDavid Somayajulu return ret; 3580afaf5a2dSDavid Somayajulu 3581c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 3582c01be6dcSMike Christie if (ret) 3583c01be6dcSMike Christie return ret; 3584c01be6dcSMike Christie ret = FAILED; 3585c01be6dcSMike Christie 3586c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3587afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 3588afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 3589afaf5a2dSDavid Somayajulu 3590afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 3591afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 3592afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 3593242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 3594afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 3595afaf5a2dSDavid Somayajulu 3596afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 3597afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 3598afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 3599c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 3600afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 3601afaf5a2dSDavid Somayajulu } 3602afaf5a2dSDavid Somayajulu 3603ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 3604ce545039SMike Christie cmd->device)) { 3605c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3606afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 3607afaf5a2dSDavid Somayajulu "commands.\n"); 3608afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 3609afaf5a2dSDavid Somayajulu } 3610afaf5a2dSDavid Somayajulu 36119d562913SDavid C Somayajulu /* Send marker. */ 36129d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 36139d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 36149d562913SDavid C Somayajulu goto eh_dev_reset_done; 36159d562913SDavid C Somayajulu 3616c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3617afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 3618afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 3619afaf5a2dSDavid Somayajulu cmd->device->lun); 3620afaf5a2dSDavid Somayajulu 3621afaf5a2dSDavid Somayajulu ret = SUCCESS; 3622afaf5a2dSDavid Somayajulu 3623afaf5a2dSDavid Somayajulu eh_dev_reset_done: 3624afaf5a2dSDavid Somayajulu 3625afaf5a2dSDavid Somayajulu return ret; 3626afaf5a2dSDavid Somayajulu } 3627afaf5a2dSDavid Somayajulu 3628afaf5a2dSDavid Somayajulu /** 3629ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 3630ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 3631ce545039SMike Christie * 3632ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 3633ce545039SMike Christie **/ 3634ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 3635ce545039SMike Christie { 3636ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 3637ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 3638c01be6dcSMike Christie int stat, ret; 3639ce545039SMike Christie 3640ce545039SMike Christie if (!ddb_entry) 3641ce545039SMike Christie return FAILED; 3642ce545039SMike Christie 3643c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 3644c01be6dcSMike Christie if (ret) 3645c01be6dcSMike Christie return ret; 3646c01be6dcSMike Christie 3647ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3648ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 3649ce545039SMike Christie 3650ce545039SMike Christie DEBUG2(printk(KERN_INFO 3651ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 3652ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 3653242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 3654ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 3655ce545039SMike Christie 3656ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 3657ce545039SMike Christie if (stat != QLA_SUCCESS) { 3658ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3659ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 3660ce545039SMike Christie return FAILED; 3661ce545039SMike Christie } 3662ce545039SMike Christie 3663ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 3664ce545039SMike Christie NULL)) { 3665ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3666ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 3667ce545039SMike Christie "waiting for commands.\n"); 3668ce545039SMike Christie return FAILED; 3669ce545039SMike Christie } 3670ce545039SMike Christie 36719d562913SDavid C Somayajulu /* Send marker. */ 36729d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 36739d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 36749d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 36759d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 36769d562913SDavid C Somayajulu "marker iocb failed.\n"); 36779d562913SDavid C Somayajulu return FAILED; 36789d562913SDavid C Somayajulu } 36799d562913SDavid C Somayajulu 3680ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 3681ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 3682ce545039SMike Christie return SUCCESS; 3683ce545039SMike Christie } 3684ce545039SMike Christie 3685ce545039SMike Christie /** 3686afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 3687afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 3688afaf5a2dSDavid Somayajulu * 3689afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 3690afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 3691afaf5a2dSDavid Somayajulu **/ 3692afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 3693afaf5a2dSDavid Somayajulu { 3694afaf5a2dSDavid Somayajulu int return_status = FAILED; 3695afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 3696afaf5a2dSDavid Somayajulu 3697b3a271a9SManish Rangankar ha = to_qla_host(cmd->device->host); 3698afaf5a2dSDavid Somayajulu 3699f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 3700f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 3701f4f5df23SVikas Chaudhary ha->host_no, __func__)); 3702f4f5df23SVikas Chaudhary return FAILED; 3703f4f5df23SVikas Chaudhary } 3704f4f5df23SVikas Chaudhary 3705c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 3706dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 3707afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 3708afaf5a2dSDavid Somayajulu 3709afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 3710afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 3711afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 3712afaf5a2dSDavid Somayajulu __func__)); 3713afaf5a2dSDavid Somayajulu 3714afaf5a2dSDavid Somayajulu return FAILED; 3715afaf5a2dSDavid Somayajulu } 3716afaf5a2dSDavid Somayajulu 3717f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 3718f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 3719f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 3720f4f5df23SVikas Chaudhary else 3721f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 3722f4f5df23SVikas Chaudhary } 372350a29aecSMike Christie 3724f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 3725afaf5a2dSDavid Somayajulu return_status = SUCCESS; 3726afaf5a2dSDavid Somayajulu 3727c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 372825985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 3729afaf5a2dSDavid Somayajulu 3730afaf5a2dSDavid Somayajulu return return_status; 3731afaf5a2dSDavid Somayajulu } 3732afaf5a2dSDavid Somayajulu 37332232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 37342232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 37352232be0dSLalit Chandivade * driver calls the following device driver's callbacks 37362232be0dSLalit Chandivade * 37372232be0dSLalit Chandivade * - Fatal Errors - link_reset 37382232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 37392232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 37402232be0dSLalit Chandivade * 37412232be0dSLalit Chandivade * PCI AER driver calls 37422232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 37432232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 37442232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 37452232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 37462232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 37472232be0dSLalit Chandivade */ 37482232be0dSLalit Chandivade static pci_ers_result_t 37492232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 37502232be0dSLalit Chandivade { 37512232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 37522232be0dSLalit Chandivade 37532232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 37542232be0dSLalit Chandivade ha->host_no, __func__, state); 37552232be0dSLalit Chandivade 37562232be0dSLalit Chandivade if (!is_aer_supported(ha)) 37572232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 37582232be0dSLalit Chandivade 37592232be0dSLalit Chandivade switch (state) { 37602232be0dSLalit Chandivade case pci_channel_io_normal: 37612232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 37622232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 37632232be0dSLalit Chandivade case pci_channel_io_frozen: 37642232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 37652232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 37662232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 37672232be0dSLalit Chandivade pci_disable_device(pdev); 37687b3595dfSVikas Chaudhary /* Return back all IOs */ 37697b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 37702232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 37712232be0dSLalit Chandivade case pci_channel_io_perm_failure: 37722232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 37732232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 37742232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 37752232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 37762232be0dSLalit Chandivade } 37772232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 37782232be0dSLalit Chandivade } 37792232be0dSLalit Chandivade 37802232be0dSLalit Chandivade /** 37812232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 37822232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 37832232be0dSLalit Chandivade * and read/write to the device still works. 37842232be0dSLalit Chandivade **/ 37852232be0dSLalit Chandivade static pci_ers_result_t 37862232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 37872232be0dSLalit Chandivade { 37882232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 37892232be0dSLalit Chandivade 37902232be0dSLalit Chandivade if (!is_aer_supported(ha)) 37912232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 37922232be0dSLalit Chandivade 37932232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 37942232be0dSLalit Chandivade } 37952232be0dSLalit Chandivade 37967b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 37972232be0dSLalit Chandivade { 37982232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 37997b3595dfSVikas Chaudhary uint32_t ret = 0; 38002232be0dSLalit Chandivade int fn; 38012232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 38022232be0dSLalit Chandivade 38032232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 38042232be0dSLalit Chandivade 38052232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 38062232be0dSLalit Chandivade 38072232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 38082232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 3809b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 3810b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 38112232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 38122232be0dSLalit Chandivade } 38132232be0dSLalit Chandivade 38142232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 38152232be0dSLalit Chandivade while (fn > 0) { 38162232be0dSLalit Chandivade fn--; 38172232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 38182232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 38192232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 38202232be0dSLalit Chandivade * slot/function number */ 38212232be0dSLalit Chandivade other_pdev = 38222232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 38232232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 38242232be0dSLalit Chandivade fn)); 38252232be0dSLalit Chandivade 38262232be0dSLalit Chandivade if (!other_pdev) 38272232be0dSLalit Chandivade continue; 38282232be0dSLalit Chandivade 38292232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 38302232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 38312232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 38322232be0dSLalit Chandivade __func__, fn); 38332232be0dSLalit Chandivade pci_dev_put(other_pdev); 38342232be0dSLalit Chandivade break; 38352232be0dSLalit Chandivade } 38362232be0dSLalit Chandivade pci_dev_put(other_pdev); 38372232be0dSLalit Chandivade } 38382232be0dSLalit Chandivade 38392232be0dSLalit Chandivade /* The first function on the card, the reset owner will 38402232be0dSLalit Chandivade * start & initialize the firmware. The other functions 38412232be0dSLalit Chandivade * on the card will reset the firmware context 38422232be0dSLalit Chandivade */ 38432232be0dSLalit Chandivade if (!fn) { 38442232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 38452232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 38462232be0dSLalit Chandivade ha->pdev->devfn); 38472232be0dSLalit Chandivade 38482232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 38492232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 38502232be0dSLalit Chandivade QLA82XX_DEV_COLD); 38512232be0dSLalit Chandivade 38522232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 38532232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 38542232be0dSLalit Chandivade 38552232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 38562232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 38570e7e8501SManish Rangankar rval = qla4xxx_initialize_adapter(ha); 38582232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 38592232be0dSLalit Chandivade 38602232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 38612232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 38622232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 38632232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 38642232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 38652232be0dSLalit Chandivade QLA82XX_DEV_FAILED); 38662232be0dSLalit Chandivade } else { 38672232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 38682232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 38692232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 38702232be0dSLalit Chandivade QLA82XX_DEV_READY); 38712232be0dSLalit Chandivade /* Clear driver state register */ 38722232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 38732232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 38747b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 38757b3595dfSVikas Chaudhary if (ret) { 38767b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 38777b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 38787b3595dfSVikas Chaudhary ha->pdev->irq); 38797b3595dfSVikas Chaudhary rval = QLA_ERROR; 38807b3595dfSVikas Chaudhary } else { 38812232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 38827b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 38837b3595dfSVikas Chaudhary } 38842232be0dSLalit Chandivade } 38852232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 38862232be0dSLalit Chandivade } else { 38872232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 38882232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 38892232be0dSLalit Chandivade ha->pdev->devfn); 38902232be0dSLalit Chandivade if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 38912232be0dSLalit Chandivade QLA82XX_DEV_READY)) { 38922232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 38930e7e8501SManish Rangankar rval = qla4xxx_initialize_adapter(ha); 38947b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 38957b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 38967b3595dfSVikas Chaudhary if (ret) { 38977b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 38987b3595dfSVikas Chaudhary " reserve interrupt %d already in" 38997b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 39007b3595dfSVikas Chaudhary rval = QLA_ERROR; 39017b3595dfSVikas Chaudhary } else { 39022232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 39037b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 39047b3595dfSVikas Chaudhary } 39057b3595dfSVikas Chaudhary } 39062232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 39072232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 39082232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 39092232be0dSLalit Chandivade } 39102232be0dSLalit Chandivade } 39112232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 39122232be0dSLalit Chandivade return rval; 39132232be0dSLalit Chandivade } 39142232be0dSLalit Chandivade 39152232be0dSLalit Chandivade static pci_ers_result_t 39162232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 39172232be0dSLalit Chandivade { 39182232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 39192232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 39202232be0dSLalit Chandivade int rc; 39212232be0dSLalit Chandivade 39222232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 39232232be0dSLalit Chandivade ha->host_no, __func__); 39242232be0dSLalit Chandivade 39252232be0dSLalit Chandivade if (!is_aer_supported(ha)) 39262232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 39272232be0dSLalit Chandivade 39282232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 39292232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 39302232be0dSLalit Chandivade * IOV states 39312232be0dSLalit Chandivade */ 39322232be0dSLalit Chandivade pci_restore_state(pdev); 39332232be0dSLalit Chandivade 39342232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 39352232be0dSLalit Chandivade * save restored state which resets saved_state flag 39362232be0dSLalit Chandivade */ 39372232be0dSLalit Chandivade pci_save_state(pdev); 39382232be0dSLalit Chandivade 39392232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 39402232be0dSLalit Chandivade rc = pci_enable_device(pdev); 39412232be0dSLalit Chandivade if (rc) { 394225985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 39432232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 39442232be0dSLalit Chandivade goto exit_slot_reset; 39452232be0dSLalit Chandivade } 39462232be0dSLalit Chandivade 39477b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 39482232be0dSLalit Chandivade 39492232be0dSLalit Chandivade if (is_qla8022(ha)) { 39502232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 39512232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 39522232be0dSLalit Chandivade goto exit_slot_reset; 39532232be0dSLalit Chandivade } else 39542232be0dSLalit Chandivade goto exit_slot_reset; 39552232be0dSLalit Chandivade } 39562232be0dSLalit Chandivade 39572232be0dSLalit Chandivade exit_slot_reset: 39582232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 39592232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 39602232be0dSLalit Chandivade return ret; 39612232be0dSLalit Chandivade } 39622232be0dSLalit Chandivade 39632232be0dSLalit Chandivade static void 39642232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 39652232be0dSLalit Chandivade { 39662232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 39672232be0dSLalit Chandivade int ret; 39682232be0dSLalit Chandivade 39692232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 39702232be0dSLalit Chandivade ha->host_no, __func__); 39712232be0dSLalit Chandivade 39722232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 39732232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 39742232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 39752232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 39762232be0dSLalit Chandivade __func__); 39772232be0dSLalit Chandivade } 39782232be0dSLalit Chandivade 39792232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 39802232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 39812232be0dSLalit Chandivade } 39822232be0dSLalit Chandivade 39832232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 39842232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 39852232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 39862232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 39872232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 39882232be0dSLalit Chandivade }; 39892232be0dSLalit Chandivade 3990afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 3991afaf5a2dSDavid Somayajulu { 3992afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 3993afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 3994afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 3995afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 3996afaf5a2dSDavid Somayajulu }, 3997afaf5a2dSDavid Somayajulu { 3998afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 3999afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 4000afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 4001afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 4002afaf5a2dSDavid Somayajulu }, 4003d915058fSDavid C Somayajulu { 4004d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 4005d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 4006d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 4007d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 4008d915058fSDavid C Somayajulu }, 4009f4f5df23SVikas Chaudhary { 4010f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 4011f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 4012f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 4013f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 4014f4f5df23SVikas Chaudhary }, 4015afaf5a2dSDavid Somayajulu {0, 0}, 4016afaf5a2dSDavid Somayajulu }; 4017afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 4018afaf5a2dSDavid Somayajulu 401947975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 4020afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 4021afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 4022afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 4023afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 40242232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 4025afaf5a2dSDavid Somayajulu }; 4026afaf5a2dSDavid Somayajulu 4027afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 4028afaf5a2dSDavid Somayajulu { 4029afaf5a2dSDavid Somayajulu int ret; 4030afaf5a2dSDavid Somayajulu 4031afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 4032afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 403320c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 4034afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 4035afaf5a2dSDavid Somayajulu printk(KERN_ERR 4036afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 4037afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 4038afaf5a2dSDavid Somayajulu ret = -ENOMEM; 4039afaf5a2dSDavid Somayajulu goto no_srp_cache; 4040afaf5a2dSDavid Somayajulu } 4041afaf5a2dSDavid Somayajulu 4042afaf5a2dSDavid Somayajulu /* Derive version string. */ 4043afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 404411010fecSAndrew Vasquez if (ql4xextended_error_logging) 4045afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 4046afaf5a2dSDavid Somayajulu 4047afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 4048afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 4049afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 4050afaf5a2dSDavid Somayajulu ret = -ENODEV; 4051afaf5a2dSDavid Somayajulu goto release_srb_cache; 4052afaf5a2dSDavid Somayajulu } 4053afaf5a2dSDavid Somayajulu 4054afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 4055afaf5a2dSDavid Somayajulu if (ret) 4056afaf5a2dSDavid Somayajulu goto unregister_transport; 4057afaf5a2dSDavid Somayajulu 4058afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 4059afaf5a2dSDavid Somayajulu return 0; 40605ae16db3SDoug Maxey 4061afaf5a2dSDavid Somayajulu unregister_transport: 4062afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 4063afaf5a2dSDavid Somayajulu release_srb_cache: 4064afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 4065afaf5a2dSDavid Somayajulu no_srp_cache: 4066afaf5a2dSDavid Somayajulu return ret; 4067afaf5a2dSDavid Somayajulu } 4068afaf5a2dSDavid Somayajulu 4069afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 4070afaf5a2dSDavid Somayajulu { 4071afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 4072afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 4073afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 4074afaf5a2dSDavid Somayajulu } 4075afaf5a2dSDavid Somayajulu 4076afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 4077afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 4078afaf5a2dSDavid Somayajulu 4079afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 4080afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 4081afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 4082afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 4083