1afaf5a2dSDavid Somayajulu /* 2afaf5a2dSDavid Somayajulu * QLogic iSCSI HBA Driver 37d01d069SVikas Chaudhary * Copyright (c) 2003-2010 QLogic Corporation 4afaf5a2dSDavid Somayajulu * 5afaf5a2dSDavid Somayajulu * See LICENSE.qla4xxx for copyright and licensing details. 6afaf5a2dSDavid Somayajulu */ 7afaf5a2dSDavid Somayajulu #include <linux/moduleparam.h> 85a0e3ad6STejun Heo #include <linux/slab.h> 92a991c21SManish Rangankar #include <linux/blkdev.h> 102a991c21SManish Rangankar #include <linux/iscsi_boot_sysfs.h> 1113483730SMike Christie #include <linux/inet.h> 12afaf5a2dSDavid Somayajulu 13afaf5a2dSDavid Somayajulu #include <scsi/scsi_tcq.h> 14afaf5a2dSDavid Somayajulu #include <scsi/scsicam.h> 15afaf5a2dSDavid Somayajulu 16afaf5a2dSDavid Somayajulu #include "ql4_def.h" 17bee4fe8eSDavid C Somayajulu #include "ql4_version.h" 18bee4fe8eSDavid C Somayajulu #include "ql4_glbl.h" 19bee4fe8eSDavid C Somayajulu #include "ql4_dbg.h" 20bee4fe8eSDavid C Somayajulu #include "ql4_inline.h" 21afaf5a2dSDavid Somayajulu 22afaf5a2dSDavid Somayajulu /* 23afaf5a2dSDavid Somayajulu * Driver version 24afaf5a2dSDavid Somayajulu */ 2547975477SAdrian Bunk static char qla4xxx_version_str[40]; 26afaf5a2dSDavid Somayajulu 27afaf5a2dSDavid Somayajulu /* 28afaf5a2dSDavid Somayajulu * SRB allocation cache 29afaf5a2dSDavid Somayajulu */ 30e18b890bSChristoph Lameter static struct kmem_cache *srb_cachep; 31afaf5a2dSDavid Somayajulu 32afaf5a2dSDavid Somayajulu /* 33afaf5a2dSDavid Somayajulu * Module parameter information and variables 34afaf5a2dSDavid Somayajulu */ 3513483730SMike Christie int ql4xdisablesysfsboot = 1; 3613483730SMike Christie module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR); 3713483730SMike Christie MODULE_PARM_DESC(ql4xdisablesysfsboot, 38a4e8a715SKaren Higgins " Set to disable exporting boot targets to sysfs.\n" 39a4e8a715SKaren Higgins "\t\t 0 - Export boot targets\n" 40a4e8a715SKaren Higgins "\t\t 1 - Do not export boot targets (Default)"); 4113483730SMike Christie 42afaf5a2dSDavid Somayajulu int ql4xdontresethba = 0; 43f4f5df23SVikas Chaudhary module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR); 44afaf5a2dSDavid Somayajulu MODULE_PARM_DESC(ql4xdontresethba, 45a4e8a715SKaren Higgins " Don't reset the HBA for driver recovery.\n" 46a4e8a715SKaren Higgins "\t\t 0 - It will reset HBA (Default)\n" 47a4e8a715SKaren Higgins "\t\t 1 - It will NOT reset HBA"); 48afaf5a2dSDavid Somayajulu 49a4e8a715SKaren Higgins int ql4xextended_error_logging; 50f4f5df23SVikas Chaudhary module_param(ql4xextended_error_logging, int, S_IRUGO | S_IWUSR); 5111010fecSAndrew Vasquez MODULE_PARM_DESC(ql4xextended_error_logging, 52a4e8a715SKaren Higgins " Option to enable extended error logging.\n" 53a4e8a715SKaren Higgins "\t\t 0 - no logging (Default)\n" 54a4e8a715SKaren Higgins "\t\t 2 - debug logging"); 55afaf5a2dSDavid Somayajulu 56f4f5df23SVikas Chaudhary int ql4xenablemsix = 1; 57f4f5df23SVikas Chaudhary module_param(ql4xenablemsix, int, S_IRUGO|S_IWUSR); 58f4f5df23SVikas Chaudhary MODULE_PARM_DESC(ql4xenablemsix, 59f4f5df23SVikas Chaudhary " Set to enable MSI or MSI-X interrupt mechanism.\n" 60a4e8a715SKaren Higgins "\t\t 0 = enable INTx interrupt mechanism.\n" 61a4e8a715SKaren Higgins "\t\t 1 = enable MSI-X interrupt mechanism (Default).\n" 62a4e8a715SKaren Higgins "\t\t 2 = enable MSI interrupt mechanism."); 63477ffb9dSDavid C Somayajulu 64d510d965SMike Christie #define QL4_DEF_QDEPTH 32 658bb4033dSVikas Chaudhary static int ql4xmaxqdepth = QL4_DEF_QDEPTH; 668bb4033dSVikas Chaudhary module_param(ql4xmaxqdepth, int, S_IRUGO | S_IWUSR); 678bb4033dSVikas Chaudhary MODULE_PARM_DESC(ql4xmaxqdepth, 688bb4033dSVikas Chaudhary " Maximum queue depth to report for target devices.\n" 69a4e8a715SKaren Higgins "\t\t Default: 32."); 70d510d965SMike Christie 713038727cSVikas Chaudhary static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO; 723038727cSVikas Chaudhary module_param(ql4xsess_recovery_tmo, int, S_IRUGO); 733038727cSVikas Chaudhary MODULE_PARM_DESC(ql4xsess_recovery_tmo, 743038727cSVikas Chaudhary "Target Session Recovery Timeout.\n" 75a4e8a715SKaren Higgins "\t\t Default: 120 sec."); 763038727cSVikas Chaudhary 77b3a271a9SManish Rangankar static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha); 78afaf5a2dSDavid Somayajulu /* 79afaf5a2dSDavid Somayajulu * SCSI host template entry points 80afaf5a2dSDavid Somayajulu */ 8147975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha); 82afaf5a2dSDavid Somayajulu 83afaf5a2dSDavid Somayajulu /* 84afaf5a2dSDavid Somayajulu * iSCSI template entry points 85afaf5a2dSDavid Somayajulu */ 86afaf5a2dSDavid Somayajulu static int qla4xxx_conn_get_param(struct iscsi_cls_conn *conn, 87afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf); 88aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 89aa1e93a2SMike Christie enum iscsi_host_param param, char *buf); 9000c31889SMike Christie static int qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, 9100c31889SMike Christie uint32_t len); 92ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 93ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 94ed1086e0SVikas Chaudhary int param, char *buf); 955c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc); 96b3a271a9SManish Rangankar static struct iscsi_endpoint *qla4xxx_ep_connect(struct Scsi_Host *shost, 97b3a271a9SManish Rangankar struct sockaddr *dst_addr, 98b3a271a9SManish Rangankar int non_blocking); 99b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms); 100b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep); 101b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 102b3a271a9SManish Rangankar enum iscsi_param param, char *buf); 103b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *conn); 104b3a271a9SManish Rangankar static struct iscsi_cls_conn * 105b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx); 106b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 107b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 108b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading); 109b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *conn); 110b3a271a9SManish Rangankar static struct iscsi_cls_session * 111b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, 112b3a271a9SManish Rangankar uint16_t qdepth, uint32_t initial_cmdsn); 113b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *sess); 114b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata); 115b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *, uint8_t); 116b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *); 117b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *); 118b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session); 119b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 120b3a271a9SManish Rangankar struct iscsi_stats *stats); 121afaf5a2dSDavid Somayajulu /* 122afaf5a2dSDavid Somayajulu * SCSI host template entry points 123afaf5a2dSDavid Somayajulu */ 124f281233dSJeff Garzik static int qla4xxx_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmd); 12509a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd); 126afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd); 127ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd); 128afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd); 129afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *device); 130afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *device); 131afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev); 132587a1f16SAl Viro static umode_t ql4_attr_is_visible(int param_type, int param); 13395d31262SVikas Chaudhary static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); 134afaf5a2dSDavid Somayajulu 135f4f5df23SVikas Chaudhary static struct qla4_8xxx_legacy_intr_set legacy_intr[] = 136f4f5df23SVikas Chaudhary QLA82XX_LEGACY_INTR_CONFIG; 137f4f5df23SVikas Chaudhary 138afaf5a2dSDavid Somayajulu static struct scsi_host_template qla4xxx_driver_template = { 139afaf5a2dSDavid Somayajulu .module = THIS_MODULE, 140afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 141afaf5a2dSDavid Somayajulu .proc_name = DRIVER_NAME, 142afaf5a2dSDavid Somayajulu .queuecommand = qla4xxx_queuecommand, 143afaf5a2dSDavid Somayajulu 14409a0f719SVikas Chaudhary .eh_abort_handler = qla4xxx_eh_abort, 145afaf5a2dSDavid Somayajulu .eh_device_reset_handler = qla4xxx_eh_device_reset, 146ce545039SMike Christie .eh_target_reset_handler = qla4xxx_eh_target_reset, 147afaf5a2dSDavid Somayajulu .eh_host_reset_handler = qla4xxx_eh_host_reset, 1485c656af7SMike Christie .eh_timed_out = qla4xxx_eh_cmd_timed_out, 149afaf5a2dSDavid Somayajulu 150afaf5a2dSDavid Somayajulu .slave_configure = qla4xxx_slave_configure, 151afaf5a2dSDavid Somayajulu .slave_alloc = qla4xxx_slave_alloc, 152afaf5a2dSDavid Somayajulu .slave_destroy = qla4xxx_slave_destroy, 153afaf5a2dSDavid Somayajulu 154afaf5a2dSDavid Somayajulu .this_id = -1, 155afaf5a2dSDavid Somayajulu .cmd_per_lun = 3, 156afaf5a2dSDavid Somayajulu .use_clustering = ENABLE_CLUSTERING, 157afaf5a2dSDavid Somayajulu .sg_tablesize = SG_ALL, 158afaf5a2dSDavid Somayajulu 159afaf5a2dSDavid Somayajulu .max_sectors = 0xFFFF, 1607ad633c0SHarish Zunjarrao .shost_attrs = qla4xxx_host_attrs, 16195d31262SVikas Chaudhary .host_reset = qla4xxx_host_reset, 162a355943cSVikas Chaudhary .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, 163afaf5a2dSDavid Somayajulu }; 164afaf5a2dSDavid Somayajulu 165afaf5a2dSDavid Somayajulu static struct iscsi_transport qla4xxx_iscsi_transport = { 166afaf5a2dSDavid Somayajulu .owner = THIS_MODULE, 167afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 168b3a271a9SManish Rangankar .caps = CAP_TEXT_NEGO | 169b3a271a9SManish Rangankar CAP_DATA_PATH_OFFLOAD | CAP_HDRDGST | 170b3a271a9SManish Rangankar CAP_DATADGST | CAP_LOGIN_OFFLOAD | 171b3a271a9SManish Rangankar CAP_MULTI_R2T, 1723128c6c7SMike Christie .attr_is_visible = ql4_attr_is_visible, 173b3a271a9SManish Rangankar .create_session = qla4xxx_session_create, 174b3a271a9SManish Rangankar .destroy_session = qla4xxx_session_destroy, 175b3a271a9SManish Rangankar .start_conn = qla4xxx_conn_start, 176b3a271a9SManish Rangankar .create_conn = qla4xxx_conn_create, 177b3a271a9SManish Rangankar .bind_conn = qla4xxx_conn_bind, 178b3a271a9SManish Rangankar .stop_conn = iscsi_conn_stop, 179b3a271a9SManish Rangankar .destroy_conn = qla4xxx_conn_destroy, 180b3a271a9SManish Rangankar .set_param = iscsi_set_param, 181afaf5a2dSDavid Somayajulu .get_conn_param = qla4xxx_conn_get_param, 182b3a271a9SManish Rangankar .get_session_param = iscsi_session_get_param, 183b3a271a9SManish Rangankar .get_ep_param = qla4xxx_get_ep_param, 184b3a271a9SManish Rangankar .ep_connect = qla4xxx_ep_connect, 185b3a271a9SManish Rangankar .ep_poll = qla4xxx_ep_poll, 186b3a271a9SManish Rangankar .ep_disconnect = qla4xxx_ep_disconnect, 187b3a271a9SManish Rangankar .get_stats = qla4xxx_conn_get_stats, 188b3a271a9SManish Rangankar .send_pdu = iscsi_conn_send_pdu, 189b3a271a9SManish Rangankar .xmit_task = qla4xxx_task_xmit, 190b3a271a9SManish Rangankar .cleanup_task = qla4xxx_task_cleanup, 191b3a271a9SManish Rangankar .alloc_pdu = qla4xxx_alloc_pdu, 192b3a271a9SManish Rangankar 193aa1e93a2SMike Christie .get_host_param = qla4xxx_host_get_param, 194d00efe3fSMike Christie .set_iface_param = qla4xxx_iface_set_param, 195ed1086e0SVikas Chaudhary .get_iface_param = qla4xxx_get_iface_param, 196a355943cSVikas Chaudhary .bsg_request = qla4xxx_bsg_request, 197afaf5a2dSDavid Somayajulu }; 198afaf5a2dSDavid Somayajulu 199afaf5a2dSDavid Somayajulu static struct scsi_transport_template *qla4xxx_scsi_transport; 200afaf5a2dSDavid Somayajulu 201587a1f16SAl Viro static umode_t ql4_attr_is_visible(int param_type, int param) 2023128c6c7SMike Christie { 2033128c6c7SMike Christie switch (param_type) { 204f27fb2efSMike Christie case ISCSI_HOST_PARAM: 205f27fb2efSMike Christie switch (param) { 206f27fb2efSMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 207f27fb2efSMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 208f27fb2efSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 2093254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_STATE: 2103254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_SPEED: 211f27fb2efSMike Christie return S_IRUGO; 212f27fb2efSMike Christie default: 213f27fb2efSMike Christie return 0; 214f27fb2efSMike Christie } 2153128c6c7SMike Christie case ISCSI_PARAM: 2163128c6c7SMike Christie switch (param) { 217590134faSMike Christie case ISCSI_PARAM_PERSISTENT_ADDRESS: 218590134faSMike Christie case ISCSI_PARAM_PERSISTENT_PORT: 2193128c6c7SMike Christie case ISCSI_PARAM_CONN_ADDRESS: 2203128c6c7SMike Christie case ISCSI_PARAM_CONN_PORT: 2211d063c17SMike Christie case ISCSI_PARAM_TARGET_NAME: 2221d063c17SMike Christie case ISCSI_PARAM_TPGT: 2231d063c17SMike Christie case ISCSI_PARAM_TARGET_ALIAS: 224b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_BURST: 225b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_R2T: 226b3a271a9SManish Rangankar case ISCSI_PARAM_FIRST_BURST: 227b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_RECV_DLENGTH: 228b3a271a9SManish Rangankar case ISCSI_PARAM_MAX_XMIT_DLENGTH: 229de37920bSMike Christie case ISCSI_PARAM_IFACE_NAME: 2303128c6c7SMike Christie return S_IRUGO; 2313128c6c7SMike Christie default: 2323128c6c7SMike Christie return 0; 2333128c6c7SMike Christie } 234b78dbba0SMike Christie case ISCSI_NET_PARAM: 235b78dbba0SMike Christie switch (param) { 236b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 237b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 238b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_GW: 239b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 240b78dbba0SMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 241b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 242b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 243b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 244b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 245b78dbba0SMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 2466ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 2476ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 2486ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 249943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 2502ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 251b78dbba0SMike Christie return S_IRUGO; 252b78dbba0SMike Christie default: 253b78dbba0SMike Christie return 0; 254b78dbba0SMike Christie } 2553128c6c7SMike Christie } 2563128c6c7SMike Christie 2573128c6c7SMike Christie return 0; 2583128c6c7SMike Christie } 2593128c6c7SMike Christie 260ed1086e0SVikas Chaudhary static int qla4xxx_get_iface_param(struct iscsi_iface *iface, 261ed1086e0SVikas Chaudhary enum iscsi_param_type param_type, 262ed1086e0SVikas Chaudhary int param, char *buf) 263ed1086e0SVikas Chaudhary { 264ed1086e0SVikas Chaudhary struct Scsi_Host *shost = iscsi_iface_to_shost(iface); 265ed1086e0SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 266ed1086e0SVikas Chaudhary int len = -ENOSYS; 267ed1086e0SVikas Chaudhary 268ed1086e0SVikas Chaudhary if (param_type != ISCSI_NET_PARAM) 269ed1086e0SVikas Chaudhary return -ENOSYS; 270ed1086e0SVikas Chaudhary 271ed1086e0SVikas Chaudhary switch (param) { 272ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_ADDR: 273ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 274ed1086e0SVikas Chaudhary break; 275ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_SUBNET: 276ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.subnet_mask); 277ed1086e0SVikas Chaudhary break; 278ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_GW: 279ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.gateway); 280ed1086e0SVikas Chaudhary break; 281ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IFACE_ENABLE: 282ed1086e0SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 283ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 284ed1086e0SVikas Chaudhary (ha->ip_config.ipv4_options & 285ed1086e0SVikas Chaudhary IPOPT_IPV4_PROTOCOL_ENABLE) ? 286ed1086e0SVikas Chaudhary "enabled" : "disabled"); 287ed1086e0SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 288ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 289ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_options & 290ed1086e0SVikas Chaudhary IPV6_OPT_IPV6_PROTOCOL_ENABLE) ? 291ed1086e0SVikas Chaudhary "enabled" : "disabled"); 292ed1086e0SVikas Chaudhary break; 293ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 294ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 295ed1086e0SVikas Chaudhary (ha->ip_config.tcp_options & TCPOPT_DHCP_ENABLE) ? 296ed1086e0SVikas Chaudhary "dhcp" : "static"); 297ed1086e0SVikas Chaudhary break; 298ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR: 299ed1086e0SVikas Chaudhary if (iface->iface_num == 0) 300ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr0); 301ed1086e0SVikas Chaudhary if (iface->iface_num == 1) 302ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", &ha->ip_config.ipv6_addr1); 303ed1086e0SVikas Chaudhary break; 304ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 305ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 306ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_link_local_addr); 307ed1086e0SVikas Chaudhary break; 308ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ROUTER: 309ed1086e0SVikas Chaudhary len = sprintf(buf, "%pI6\n", 310ed1086e0SVikas Chaudhary &ha->ip_config.ipv6_default_router_addr); 311ed1086e0SVikas Chaudhary break; 312ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 313ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 314ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 315ed1086e0SVikas Chaudhary IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE) ? 316ed1086e0SVikas Chaudhary "nd" : "static"); 317ed1086e0SVikas Chaudhary break; 318ed1086e0SVikas Chaudhary case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 319ed1086e0SVikas Chaudhary len = sprintf(buf, "%s\n", 320ed1086e0SVikas Chaudhary (ha->ip_config.ipv6_addl_options & 321ed1086e0SVikas Chaudhary IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ? 322ed1086e0SVikas Chaudhary "auto" : "static"); 323ed1086e0SVikas Chaudhary break; 3246ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ID: 3256ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3266ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3276ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_vlan_tag & 3286ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3296ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3306ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3316ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_vlan_tag & 3326ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_ID)); 3336ac73e8cSVikas Chaudhary break; 3346ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_PRIORITY: 3356ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3366ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3376ac73e8cSVikas Chaudhary ((ha->ip_config.ipv4_vlan_tag >> 13) & 3386ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3396ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3406ac73e8cSVikas Chaudhary len = sprintf(buf, "%d\n", 3416ac73e8cSVikas Chaudhary ((ha->ip_config.ipv6_vlan_tag >> 13) & 3426ac73e8cSVikas Chaudhary ISCSI_MAX_VLAN_PRIORITY)); 3436ac73e8cSVikas Chaudhary break; 3446ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 3456ac73e8cSVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3466ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3476ac73e8cSVikas Chaudhary (ha->ip_config.ipv4_options & 3486ac73e8cSVikas Chaudhary IPOPT_VLAN_TAGGING_ENABLE) ? 3496ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3506ac73e8cSVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3516ac73e8cSVikas Chaudhary len = sprintf(buf, "%s\n", 3526ac73e8cSVikas Chaudhary (ha->ip_config.ipv6_options & 3536ac73e8cSVikas Chaudhary IPV6_OPT_VLAN_TAGGING_ENABLE) ? 3546ac73e8cSVikas Chaudhary "enabled" : "disabled"); 3556ac73e8cSVikas Chaudhary break; 356943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 357943c157bSVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size); 358943c157bSVikas Chaudhary break; 3592ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 3602ada7fc5SVikas Chaudhary if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4) 3612ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv4_port); 3622ada7fc5SVikas Chaudhary else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6) 3632ada7fc5SVikas Chaudhary len = sprintf(buf, "%d\n", ha->ip_config.ipv6_port); 3642ada7fc5SVikas Chaudhary break; 365ed1086e0SVikas Chaudhary default: 366ed1086e0SVikas Chaudhary len = -ENOSYS; 367ed1086e0SVikas Chaudhary } 368ed1086e0SVikas Chaudhary 369ed1086e0SVikas Chaudhary return len; 370ed1086e0SVikas Chaudhary } 371ed1086e0SVikas Chaudhary 372b3a271a9SManish Rangankar static struct iscsi_endpoint * 373b3a271a9SManish Rangankar qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, 374b3a271a9SManish Rangankar int non_blocking) 375b3a271a9SManish Rangankar { 376b3a271a9SManish Rangankar int ret; 377b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 378b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 379b3a271a9SManish Rangankar struct scsi_qla_host *ha; 380b3a271a9SManish Rangankar struct sockaddr_in *addr; 381b3a271a9SManish Rangankar struct sockaddr_in6 *addr6; 382b3a271a9SManish Rangankar 383b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 384b3a271a9SManish Rangankar if (!shost) { 385b3a271a9SManish Rangankar ret = -ENXIO; 386b3a271a9SManish Rangankar printk(KERN_ERR "%s: shost is NULL\n", 387b3a271a9SManish Rangankar __func__); 388b3a271a9SManish Rangankar return ERR_PTR(ret); 389b3a271a9SManish Rangankar } 390b3a271a9SManish Rangankar 391b3a271a9SManish Rangankar ha = iscsi_host_priv(shost); 392b3a271a9SManish Rangankar 393b3a271a9SManish Rangankar ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); 394b3a271a9SManish Rangankar if (!ep) { 395b3a271a9SManish Rangankar ret = -ENOMEM; 396b3a271a9SManish Rangankar return ERR_PTR(ret); 397b3a271a9SManish Rangankar } 398b3a271a9SManish Rangankar 399b3a271a9SManish Rangankar qla_ep = ep->dd_data; 400b3a271a9SManish Rangankar memset(qla_ep, 0, sizeof(struct qla_endpoint)); 401b3a271a9SManish Rangankar if (dst_addr->sa_family == AF_INET) { 402b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, sizeof(struct sockaddr_in)); 403b3a271a9SManish Rangankar addr = (struct sockaddr_in *)&qla_ep->dst_addr; 404b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI4\n", __func__, 405b3a271a9SManish Rangankar (char *)&addr->sin_addr)); 406b3a271a9SManish Rangankar } else if (dst_addr->sa_family == AF_INET6) { 407b3a271a9SManish Rangankar memcpy(&qla_ep->dst_addr, dst_addr, 408b3a271a9SManish Rangankar sizeof(struct sockaddr_in6)); 409b3a271a9SManish Rangankar addr6 = (struct sockaddr_in6 *)&qla_ep->dst_addr; 410b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %pI6\n", __func__, 411b3a271a9SManish Rangankar (char *)&addr6->sin6_addr)); 412b3a271a9SManish Rangankar } 413b3a271a9SManish Rangankar 414b3a271a9SManish Rangankar qla_ep->host = shost; 415b3a271a9SManish Rangankar 416b3a271a9SManish Rangankar return ep; 417b3a271a9SManish Rangankar } 418b3a271a9SManish Rangankar 419b3a271a9SManish Rangankar static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) 420b3a271a9SManish Rangankar { 421b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 422b3a271a9SManish Rangankar struct scsi_qla_host *ha; 423b3a271a9SManish Rangankar int ret = 0; 424b3a271a9SManish Rangankar 425b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 426b3a271a9SManish Rangankar qla_ep = ep->dd_data; 427b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 428b3a271a9SManish Rangankar 42913483730SMike Christie if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags)) 430b3a271a9SManish Rangankar ret = 1; 431b3a271a9SManish Rangankar 432b3a271a9SManish Rangankar return ret; 433b3a271a9SManish Rangankar } 434b3a271a9SManish Rangankar 435b3a271a9SManish Rangankar static void qla4xxx_ep_disconnect(struct iscsi_endpoint *ep) 436b3a271a9SManish Rangankar { 437b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 438b3a271a9SManish Rangankar iscsi_destroy_endpoint(ep); 439b3a271a9SManish Rangankar } 440b3a271a9SManish Rangankar 441b3a271a9SManish Rangankar static int qla4xxx_get_ep_param(struct iscsi_endpoint *ep, 442b3a271a9SManish Rangankar enum iscsi_param param, 443b3a271a9SManish Rangankar char *buf) 444b3a271a9SManish Rangankar { 445b3a271a9SManish Rangankar struct qla_endpoint *qla_ep = ep->dd_data; 446b3a271a9SManish Rangankar struct sockaddr *dst_addr; 447b3a271a9SManish Rangankar 448b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 449b3a271a9SManish Rangankar 450b3a271a9SManish Rangankar switch (param) { 451b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_PORT: 452b3a271a9SManish Rangankar case ISCSI_PARAM_CONN_ADDRESS: 453b3a271a9SManish Rangankar if (!qla_ep) 454b3a271a9SManish Rangankar return -ENOTCONN; 455b3a271a9SManish Rangankar 456b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 457b3a271a9SManish Rangankar if (!dst_addr) 458b3a271a9SManish Rangankar return -ENOTCONN; 459b3a271a9SManish Rangankar 460b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 461b3a271a9SManish Rangankar &qla_ep->dst_addr, param, buf); 462b3a271a9SManish Rangankar default: 463b3a271a9SManish Rangankar return -ENOSYS; 464b3a271a9SManish Rangankar } 465b3a271a9SManish Rangankar } 466b3a271a9SManish Rangankar 467b3a271a9SManish Rangankar static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn, 468b3a271a9SManish Rangankar struct iscsi_stats *stats) 469b3a271a9SManish Rangankar { 470b3a271a9SManish Rangankar struct iscsi_session *sess; 471b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 472b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 473b3a271a9SManish Rangankar struct scsi_qla_host *ha; 474b3a271a9SManish Rangankar struct ql_iscsi_stats *ql_iscsi_stats; 475b3a271a9SManish Rangankar int stats_size; 476b3a271a9SManish Rangankar int ret; 477b3a271a9SManish Rangankar dma_addr_t iscsi_stats_dma; 478b3a271a9SManish Rangankar 479b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 480b3a271a9SManish Rangankar 481b3a271a9SManish Rangankar cls_sess = iscsi_conn_to_session(cls_conn); 482b3a271a9SManish Rangankar sess = cls_sess->dd_data; 483b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 484b3a271a9SManish Rangankar ha = ddb_entry->ha; 485b3a271a9SManish Rangankar 486b3a271a9SManish Rangankar stats_size = PAGE_ALIGN(sizeof(struct ql_iscsi_stats)); 487b3a271a9SManish Rangankar /* Allocate memory */ 488b3a271a9SManish Rangankar ql_iscsi_stats = dma_alloc_coherent(&ha->pdev->dev, stats_size, 489b3a271a9SManish Rangankar &iscsi_stats_dma, GFP_KERNEL); 490b3a271a9SManish Rangankar if (!ql_iscsi_stats) { 491b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 492b3a271a9SManish Rangankar "Unable to allocate memory for iscsi stats\n"); 493b3a271a9SManish Rangankar goto exit_get_stats; 494b3a271a9SManish Rangankar } 495b3a271a9SManish Rangankar 496b3a271a9SManish Rangankar ret = qla4xxx_get_mgmt_data(ha, ddb_entry->fw_ddb_index, stats_size, 497b3a271a9SManish Rangankar iscsi_stats_dma); 498b3a271a9SManish Rangankar if (ret != QLA_SUCCESS) { 499b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 500b3a271a9SManish Rangankar "Unable to retreive iscsi stats\n"); 501b3a271a9SManish Rangankar goto free_stats; 502b3a271a9SManish Rangankar } 503b3a271a9SManish Rangankar 504b3a271a9SManish Rangankar /* octets */ 505b3a271a9SManish Rangankar stats->txdata_octets = le64_to_cpu(ql_iscsi_stats->tx_data_octets); 506b3a271a9SManish Rangankar stats->rxdata_octets = le64_to_cpu(ql_iscsi_stats->rx_data_octets); 507b3a271a9SManish Rangankar /* xmit pdus */ 508b3a271a9SManish Rangankar stats->noptx_pdus = le32_to_cpu(ql_iscsi_stats->tx_nopout_pdus); 509b3a271a9SManish Rangankar stats->scsicmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_cmd_pdus); 510b3a271a9SManish Rangankar stats->tmfcmd_pdus = le32_to_cpu(ql_iscsi_stats->tx_tmf_cmd_pdus); 511b3a271a9SManish Rangankar stats->login_pdus = le32_to_cpu(ql_iscsi_stats->tx_login_cmd_pdus); 512b3a271a9SManish Rangankar stats->text_pdus = le32_to_cpu(ql_iscsi_stats->tx_text_cmd_pdus); 513b3a271a9SManish Rangankar stats->dataout_pdus = le32_to_cpu(ql_iscsi_stats->tx_scsi_write_pdus); 514b3a271a9SManish Rangankar stats->logout_pdus = le32_to_cpu(ql_iscsi_stats->tx_logout_cmd_pdus); 515b3a271a9SManish Rangankar stats->snack_pdus = le32_to_cpu(ql_iscsi_stats->tx_snack_req_pdus); 516b3a271a9SManish Rangankar /* recv pdus */ 517b3a271a9SManish Rangankar stats->noprx_pdus = le32_to_cpu(ql_iscsi_stats->rx_nopin_pdus); 518b3a271a9SManish Rangankar stats->scsirsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_resp_pdus); 519b3a271a9SManish Rangankar stats->tmfrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_tmf_resp_pdus); 520b3a271a9SManish Rangankar stats->textrsp_pdus = le32_to_cpu(ql_iscsi_stats->rx_text_resp_pdus); 521b3a271a9SManish Rangankar stats->datain_pdus = le32_to_cpu(ql_iscsi_stats->rx_scsi_read_pdus); 522b3a271a9SManish Rangankar stats->logoutrsp_pdus = 523b3a271a9SManish Rangankar le32_to_cpu(ql_iscsi_stats->rx_logout_resp_pdus); 524b3a271a9SManish Rangankar stats->r2t_pdus = le32_to_cpu(ql_iscsi_stats->rx_r2t_pdus); 525b3a271a9SManish Rangankar stats->async_pdus = le32_to_cpu(ql_iscsi_stats->rx_async_pdus); 526b3a271a9SManish Rangankar stats->rjt_pdus = le32_to_cpu(ql_iscsi_stats->rx_reject_pdus); 527b3a271a9SManish Rangankar 528b3a271a9SManish Rangankar free_stats: 529b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, 530b3a271a9SManish Rangankar iscsi_stats_dma); 531b3a271a9SManish Rangankar exit_get_stats: 532b3a271a9SManish Rangankar return; 533b3a271a9SManish Rangankar } 534b3a271a9SManish Rangankar 5355c656af7SMike Christie static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) 5365c656af7SMike Christie { 5375c656af7SMike Christie struct iscsi_cls_session *session; 538b3a271a9SManish Rangankar struct iscsi_session *sess; 539b3a271a9SManish Rangankar unsigned long flags; 540b3a271a9SManish Rangankar enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; 5415c656af7SMike Christie 5425c656af7SMike Christie session = starget_to_session(scsi_target(sc->device)); 543b3a271a9SManish Rangankar sess = session->dd_data; 5445c656af7SMike Christie 545b3a271a9SManish Rangankar spin_lock_irqsave(&session->lock, flags); 546b3a271a9SManish Rangankar if (session->state == ISCSI_SESSION_FAILED) 547b3a271a9SManish Rangankar ret = BLK_EH_RESET_TIMER; 548b3a271a9SManish Rangankar spin_unlock_irqrestore(&session->lock, flags); 5495c656af7SMike Christie 550b3a271a9SManish Rangankar return ret; 551568d303bSMike Christie } 552afaf5a2dSDavid Somayajulu 5533254dbe9SVikas Chaudhary static void qla4xxx_set_port_speed(struct Scsi_Host *shost) 5543254dbe9SVikas Chaudhary { 5553254dbe9SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 5563254dbe9SVikas Chaudhary struct iscsi_cls_host *ihost = shost_priv(shost); 5573254dbe9SVikas Chaudhary uint32_t speed = ISCSI_PORT_SPEED_UNKNOWN; 5583254dbe9SVikas Chaudhary 5593254dbe9SVikas Chaudhary qla4xxx_get_firmware_state(ha); 5603254dbe9SVikas Chaudhary 5613254dbe9SVikas Chaudhary switch (ha->addl_fw_state & 0x0F00) { 5623254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_10MBPS: 5633254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_10MBPS; 5643254dbe9SVikas Chaudhary break; 5653254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_100MBPS: 5663254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_100MBPS; 5673254dbe9SVikas Chaudhary break; 5683254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_1GBPS: 5693254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_1GBPS; 5703254dbe9SVikas Chaudhary break; 5713254dbe9SVikas Chaudhary case FW_ADDSTATE_LINK_SPEED_10GBPS: 5723254dbe9SVikas Chaudhary speed = ISCSI_PORT_SPEED_10GBPS; 5733254dbe9SVikas Chaudhary break; 5743254dbe9SVikas Chaudhary } 5753254dbe9SVikas Chaudhary ihost->port_speed = speed; 5763254dbe9SVikas Chaudhary } 5773254dbe9SVikas Chaudhary 5783254dbe9SVikas Chaudhary static void qla4xxx_set_port_state(struct Scsi_Host *shost) 5793254dbe9SVikas Chaudhary { 5803254dbe9SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 5813254dbe9SVikas Chaudhary struct iscsi_cls_host *ihost = shost_priv(shost); 5823254dbe9SVikas Chaudhary uint32_t state = ISCSI_PORT_STATE_DOWN; 5833254dbe9SVikas Chaudhary 5843254dbe9SVikas Chaudhary if (test_bit(AF_LINK_UP, &ha->flags)) 5853254dbe9SVikas Chaudhary state = ISCSI_PORT_STATE_UP; 5863254dbe9SVikas Chaudhary 5873254dbe9SVikas Chaudhary ihost->port_state = state; 5883254dbe9SVikas Chaudhary } 5893254dbe9SVikas Chaudhary 590aa1e93a2SMike Christie static int qla4xxx_host_get_param(struct Scsi_Host *shost, 591aa1e93a2SMike Christie enum iscsi_host_param param, char *buf) 592aa1e93a2SMike Christie { 593aa1e93a2SMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 594aa1e93a2SMike Christie int len; 595aa1e93a2SMike Christie 596aa1e93a2SMike Christie switch (param) { 597aa1e93a2SMike Christie case ISCSI_HOST_PARAM_HWADDRESS: 5987ffc49a6SMichael Chan len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN); 599aa1e93a2SMike Christie break; 60022236961SMike Christie case ISCSI_HOST_PARAM_IPADDRESS: 6012bab08fcSVikas Chaudhary len = sprintf(buf, "%pI4\n", &ha->ip_config.ip_address); 60222236961SMike Christie break; 6038ad5781aSMike Christie case ISCSI_HOST_PARAM_INITIATOR_NAME: 60422236961SMike Christie len = sprintf(buf, "%s\n", ha->name_string); 6058ad5781aSMike Christie break; 6063254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_STATE: 6073254dbe9SVikas Chaudhary qla4xxx_set_port_state(shost); 6083254dbe9SVikas Chaudhary len = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); 6093254dbe9SVikas Chaudhary break; 6103254dbe9SVikas Chaudhary case ISCSI_HOST_PARAM_PORT_SPEED: 6113254dbe9SVikas Chaudhary qla4xxx_set_port_speed(shost); 6123254dbe9SVikas Chaudhary len = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); 6133254dbe9SVikas Chaudhary break; 614aa1e93a2SMike Christie default: 615aa1e93a2SMike Christie return -ENOSYS; 616aa1e93a2SMike Christie } 617aa1e93a2SMike Christie 618aa1e93a2SMike Christie return len; 619aa1e93a2SMike Christie } 620aa1e93a2SMike Christie 621ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv4_iface(struct scsi_qla_host *ha) 622ed1086e0SVikas Chaudhary { 623ed1086e0SVikas Chaudhary if (ha->iface_ipv4) 624ed1086e0SVikas Chaudhary return; 625ed1086e0SVikas Chaudhary 626ed1086e0SVikas Chaudhary /* IPv4 */ 627ed1086e0SVikas Chaudhary ha->iface_ipv4 = iscsi_create_iface(ha->host, 628ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 629ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV4, 0, 0); 630ed1086e0SVikas Chaudhary if (!ha->iface_ipv4) 631ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv4 iSCSI " 632ed1086e0SVikas Chaudhary "iface0.\n"); 633ed1086e0SVikas Chaudhary } 634ed1086e0SVikas Chaudhary 635ed1086e0SVikas Chaudhary static void qla4xxx_create_ipv6_iface(struct scsi_qla_host *ha) 636ed1086e0SVikas Chaudhary { 637ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 638ed1086e0SVikas Chaudhary /* IPv6 iface-0 */ 639ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = iscsi_create_iface(ha->host, 640ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 641ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 0, 642ed1086e0SVikas Chaudhary 0); 643ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_0) 644ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 645ed1086e0SVikas Chaudhary "iface0.\n"); 646ed1086e0SVikas Chaudhary 647ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 648ed1086e0SVikas Chaudhary /* IPv6 iface-1 */ 649ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = iscsi_create_iface(ha->host, 650ed1086e0SVikas Chaudhary &qla4xxx_iscsi_transport, 651ed1086e0SVikas Chaudhary ISCSI_IFACE_TYPE_IPV6, 1, 652ed1086e0SVikas Chaudhary 0); 653ed1086e0SVikas Chaudhary if (!ha->iface_ipv6_1) 654ed1086e0SVikas Chaudhary ql4_printk(KERN_ERR, ha, "Could not create IPv6 iSCSI " 655ed1086e0SVikas Chaudhary "iface1.\n"); 656ed1086e0SVikas Chaudhary } 657ed1086e0SVikas Chaudhary 658ed1086e0SVikas Chaudhary static void qla4xxx_create_ifaces(struct scsi_qla_host *ha) 659ed1086e0SVikas Chaudhary { 660ed1086e0SVikas Chaudhary if (ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) 661ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 662ed1086e0SVikas Chaudhary 663ed1086e0SVikas Chaudhary if (ha->ip_config.ipv6_options & IPV6_OPT_IPV6_PROTOCOL_ENABLE) 664ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 665ed1086e0SVikas Chaudhary } 666ed1086e0SVikas Chaudhary 667ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv4_iface(struct scsi_qla_host *ha) 668ed1086e0SVikas Chaudhary { 669ed1086e0SVikas Chaudhary if (ha->iface_ipv4) { 670ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv4); 671ed1086e0SVikas Chaudhary ha->iface_ipv4 = NULL; 672ed1086e0SVikas Chaudhary } 673ed1086e0SVikas Chaudhary } 674ed1086e0SVikas Chaudhary 675ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ipv6_iface(struct scsi_qla_host *ha) 676ed1086e0SVikas Chaudhary { 677ed1086e0SVikas Chaudhary if (ha->iface_ipv6_0) { 678ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_0); 679ed1086e0SVikas Chaudhary ha->iface_ipv6_0 = NULL; 680ed1086e0SVikas Chaudhary } 681ed1086e0SVikas Chaudhary if (ha->iface_ipv6_1) { 682ed1086e0SVikas Chaudhary iscsi_destroy_iface(ha->iface_ipv6_1); 683ed1086e0SVikas Chaudhary ha->iface_ipv6_1 = NULL; 684ed1086e0SVikas Chaudhary } 685ed1086e0SVikas Chaudhary } 686ed1086e0SVikas Chaudhary 687ed1086e0SVikas Chaudhary static void qla4xxx_destroy_ifaces(struct scsi_qla_host *ha) 688ed1086e0SVikas Chaudhary { 689ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 690ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 691ed1086e0SVikas Chaudhary } 692ed1086e0SVikas Chaudhary 693d00efe3fSMike Christie static void qla4xxx_set_ipv6(struct scsi_qla_host *ha, 694d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 695d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 696d00efe3fSMike Christie { 697d00efe3fSMike Christie /* 698d00efe3fSMike Christie * iface_num 0 is valid for IPv6 Addr, linklocal, router, autocfg. 699d00efe3fSMike Christie * iface_num 1 is valid only for IPv6 Addr. 700d00efe3fSMike Christie */ 701d00efe3fSMike Christie switch (iface_param->param) { 702d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR: 703d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 704d00efe3fSMike Christie /* IPv6 Addr 1 */ 705d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr1, iface_param->value, 706d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr1)); 707d00efe3fSMike Christie else 708d00efe3fSMike Christie /* IPv6 Addr 0 */ 709d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_addr0, iface_param->value, 710d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_addr0)); 711d00efe3fSMike Christie break; 712d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL: 713d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 714d00efe3fSMike Christie break; 715d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_if_id, &iface_param->value[8], 716d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_if_id)); 717d00efe3fSMike Christie break; 718d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER: 719d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 720d00efe3fSMike Christie break; 721d00efe3fSMike Christie memcpy(init_fw_cb->ipv6_dflt_rtr_addr, iface_param->value, 722d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 723d00efe3fSMike Christie break; 724d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG: 725d00efe3fSMike Christie /* Autocfg applies to even interface */ 726d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 727d00efe3fSMike Christie break; 728d00efe3fSMike Christie 729d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_DISABLE) 730d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= 731d00efe3fSMike Christie cpu_to_le16( 732d00efe3fSMike Christie ~IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 733d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_IPV6_AUTOCFG_ND_ENABLE) 734d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= 735d00efe3fSMike Christie cpu_to_le16( 736d00efe3fSMike Christie IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE); 737d00efe3fSMike Christie else 738d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 739d00efe3fSMike Christie "IPv6 addr\n"); 740d00efe3fSMike Christie break; 741d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG: 742d00efe3fSMike Christie /* Autocfg applies to even interface */ 743d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 744d00efe3fSMike Christie break; 745d00efe3fSMike Christie 746d00efe3fSMike Christie if (iface_param->value[0] == 747d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE) 748d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts |= cpu_to_le16( 749d00efe3fSMike Christie IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 750d00efe3fSMike Christie else if (iface_param->value[0] == 751d00efe3fSMike Christie ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE) 752d00efe3fSMike Christie init_fw_cb->ipv6_addtl_opts &= cpu_to_le16( 753d00efe3fSMike Christie ~IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR); 754d00efe3fSMike Christie else 755d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid autocfg setting for " 756d00efe3fSMike Christie "IPv6 linklocal addr\n"); 757d00efe3fSMike Christie break; 758d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG: 759d00efe3fSMike Christie /* Autocfg applies to even interface */ 760d00efe3fSMike Christie if (iface_param->iface_num & 0x1) 761d00efe3fSMike Christie break; 762d00efe3fSMike Christie 763d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE) 764d00efe3fSMike Christie memset(init_fw_cb->ipv6_dflt_rtr_addr, 0, 765d00efe3fSMike Christie sizeof(init_fw_cb->ipv6_dflt_rtr_addr)); 766d00efe3fSMike Christie break; 767d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 768ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 769d00efe3fSMike Christie init_fw_cb->ipv6_opts |= 770d00efe3fSMike Christie cpu_to_le16(IPV6_OPT_IPV6_PROTOCOL_ENABLE); 771ed1086e0SVikas Chaudhary qla4xxx_create_ipv6_iface(ha); 772ed1086e0SVikas Chaudhary } else { 773d00efe3fSMike Christie init_fw_cb->ipv6_opts &= 774d00efe3fSMike Christie cpu_to_le16(~IPV6_OPT_IPV6_PROTOCOL_ENABLE & 775d00efe3fSMike Christie 0xFFFF); 776ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv6_iface(ha); 777ed1086e0SVikas Chaudhary } 778d00efe3fSMike Christie break; 7792d63673bSMike Christie case ISCSI_NET_PARAM_VLAN_TAG: 780d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag)) 781d00efe3fSMike Christie break; 7826ac73e8cSVikas Chaudhary init_fw_cb->ipv6_vlan_tag = 7836ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 7846ac73e8cSVikas Chaudhary break; 7856ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 7866ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 7876ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts |= 7886ac73e8cSVikas Chaudhary cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE); 7896ac73e8cSVikas Chaudhary else 7906ac73e8cSVikas Chaudhary init_fw_cb->ipv6_opts &= 7916ac73e8cSVikas Chaudhary cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE); 792d00efe3fSMike Christie break; 793943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 794943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 795943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 796943c157bSVikas Chaudhary break; 7972ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 7982ada7fc5SVikas Chaudhary /* Autocfg applies to even interface */ 7992ada7fc5SVikas Chaudhary if (iface_param->iface_num & 0x1) 8002ada7fc5SVikas Chaudhary break; 8012ada7fc5SVikas Chaudhary 8022ada7fc5SVikas Chaudhary init_fw_cb->ipv6_port = 8032ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 8042ada7fc5SVikas Chaudhary break; 805d00efe3fSMike Christie default: 806d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n", 807d00efe3fSMike Christie iface_param->param); 808d00efe3fSMike Christie break; 809d00efe3fSMike Christie } 810d00efe3fSMike Christie } 811d00efe3fSMike Christie 812d00efe3fSMike Christie static void qla4xxx_set_ipv4(struct scsi_qla_host *ha, 813d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param, 814d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb) 815d00efe3fSMike Christie { 816d00efe3fSMike Christie switch (iface_param->param) { 817d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_ADDR: 818d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_addr, iface_param->value, 819d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_addr)); 820d00efe3fSMike Christie break; 821d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_SUBNET: 822d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_subnet, iface_param->value, 823d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_subnet)); 824d00efe3fSMike Christie break; 825d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_GW: 826d00efe3fSMike Christie memcpy(init_fw_cb->ipv4_gw_addr, iface_param->value, 827d00efe3fSMike Christie sizeof(init_fw_cb->ipv4_gw_addr)); 828d00efe3fSMike Christie break; 829d00efe3fSMike Christie case ISCSI_NET_PARAM_IPV4_BOOTPROTO: 830d00efe3fSMike Christie if (iface_param->value[0] == ISCSI_BOOTPROTO_DHCP) 831d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts |= 832d00efe3fSMike Christie cpu_to_le16(TCPOPT_DHCP_ENABLE); 833d00efe3fSMike Christie else if (iface_param->value[0] == ISCSI_BOOTPROTO_STATIC) 834d00efe3fSMike Christie init_fw_cb->ipv4_tcp_opts &= 835d00efe3fSMike Christie cpu_to_le16(~TCPOPT_DHCP_ENABLE); 836d00efe3fSMike Christie else 837d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 bootproto\n"); 838d00efe3fSMike Christie break; 839d00efe3fSMike Christie case ISCSI_NET_PARAM_IFACE_ENABLE: 840ed1086e0SVikas Chaudhary if (iface_param->value[0] == ISCSI_IFACE_ENABLE) { 841d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts |= 8422bab08fcSVikas Chaudhary cpu_to_le16(IPOPT_IPV4_PROTOCOL_ENABLE); 843ed1086e0SVikas Chaudhary qla4xxx_create_ipv4_iface(ha); 844ed1086e0SVikas Chaudhary } else { 845d00efe3fSMike Christie init_fw_cb->ipv4_ip_opts &= 8462bab08fcSVikas Chaudhary cpu_to_le16(~IPOPT_IPV4_PROTOCOL_ENABLE & 847d00efe3fSMike Christie 0xFFFF); 848ed1086e0SVikas Chaudhary qla4xxx_destroy_ipv4_iface(ha); 849ed1086e0SVikas Chaudhary } 850d00efe3fSMike Christie break; 8512d63673bSMike Christie case ISCSI_NET_PARAM_VLAN_TAG: 852d00efe3fSMike Christie if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag)) 853d00efe3fSMike Christie break; 8546ac73e8cSVikas Chaudhary init_fw_cb->ipv4_vlan_tag = 8556ac73e8cSVikas Chaudhary cpu_to_be16(*(uint16_t *)iface_param->value); 8566ac73e8cSVikas Chaudhary break; 8576ac73e8cSVikas Chaudhary case ISCSI_NET_PARAM_VLAN_ENABLED: 8586ac73e8cSVikas Chaudhary if (iface_param->value[0] == ISCSI_VLAN_ENABLE) 8596ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts |= 8606ac73e8cSVikas Chaudhary cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE); 8616ac73e8cSVikas Chaudhary else 8626ac73e8cSVikas Chaudhary init_fw_cb->ipv4_ip_opts &= 8636ac73e8cSVikas Chaudhary cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE); 864d00efe3fSMike Christie break; 865943c157bSVikas Chaudhary case ISCSI_NET_PARAM_MTU: 866943c157bSVikas Chaudhary init_fw_cb->eth_mtu_size = 867943c157bSVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 868943c157bSVikas Chaudhary break; 8692ada7fc5SVikas Chaudhary case ISCSI_NET_PARAM_PORT: 8702ada7fc5SVikas Chaudhary init_fw_cb->ipv4_port = 8712ada7fc5SVikas Chaudhary cpu_to_le16(*(uint16_t *)iface_param->value); 8722ada7fc5SVikas Chaudhary break; 873d00efe3fSMike Christie default: 874d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n", 875d00efe3fSMike Christie iface_param->param); 876d00efe3fSMike Christie break; 877d00efe3fSMike Christie } 878d00efe3fSMike Christie } 879d00efe3fSMike Christie 880d00efe3fSMike Christie static void 881d00efe3fSMike Christie qla4xxx_initcb_to_acb(struct addr_ctrl_blk *init_fw_cb) 882d00efe3fSMike Christie { 883d00efe3fSMike Christie struct addr_ctrl_blk_def *acb; 884d00efe3fSMike Christie acb = (struct addr_ctrl_blk_def *)init_fw_cb; 885d00efe3fSMike Christie memset(acb->reserved1, 0, sizeof(acb->reserved1)); 886d00efe3fSMike Christie memset(acb->reserved2, 0, sizeof(acb->reserved2)); 887d00efe3fSMike Christie memset(acb->reserved3, 0, sizeof(acb->reserved3)); 888d00efe3fSMike Christie memset(acb->reserved4, 0, sizeof(acb->reserved4)); 889d00efe3fSMike Christie memset(acb->reserved5, 0, sizeof(acb->reserved5)); 890d00efe3fSMike Christie memset(acb->reserved6, 0, sizeof(acb->reserved6)); 891d00efe3fSMike Christie memset(acb->reserved7, 0, sizeof(acb->reserved7)); 892d00efe3fSMike Christie memset(acb->reserved8, 0, sizeof(acb->reserved8)); 893d00efe3fSMike Christie memset(acb->reserved9, 0, sizeof(acb->reserved9)); 894d00efe3fSMike Christie memset(acb->reserved10, 0, sizeof(acb->reserved10)); 895d00efe3fSMike Christie memset(acb->reserved11, 0, sizeof(acb->reserved11)); 896d00efe3fSMike Christie memset(acb->reserved12, 0, sizeof(acb->reserved12)); 897d00efe3fSMike Christie memset(acb->reserved13, 0, sizeof(acb->reserved13)); 898d00efe3fSMike Christie memset(acb->reserved14, 0, sizeof(acb->reserved14)); 899d00efe3fSMike Christie memset(acb->reserved15, 0, sizeof(acb->reserved15)); 900d00efe3fSMike Christie } 901d00efe3fSMike Christie 902d00efe3fSMike Christie static int 90300c31889SMike Christie qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len) 904d00efe3fSMike Christie { 905d00efe3fSMike Christie struct scsi_qla_host *ha = to_qla_host(shost); 906d00efe3fSMike Christie int rval = 0; 907d00efe3fSMike Christie struct iscsi_iface_param_info *iface_param = NULL; 908d00efe3fSMike Christie struct addr_ctrl_blk *init_fw_cb = NULL; 909d00efe3fSMike Christie dma_addr_t init_fw_cb_dma; 910d00efe3fSMike Christie uint32_t mbox_cmd[MBOX_REG_COUNT]; 911d00efe3fSMike Christie uint32_t mbox_sts[MBOX_REG_COUNT]; 91200c31889SMike Christie uint32_t rem = len; 91300c31889SMike Christie struct nlattr *attr; 914d00efe3fSMike Christie 915d00efe3fSMike Christie init_fw_cb = dma_alloc_coherent(&ha->pdev->dev, 916d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 917d00efe3fSMike Christie &init_fw_cb_dma, GFP_KERNEL); 918d00efe3fSMike Christie if (!init_fw_cb) { 919d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n", 920d00efe3fSMike Christie __func__); 921d00efe3fSMike Christie return -ENOMEM; 922d00efe3fSMike Christie } 923d00efe3fSMike Christie 924d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 925d00efe3fSMike Christie memset(&mbox_cmd, 0, sizeof(mbox_cmd)); 926d00efe3fSMike Christie memset(&mbox_sts, 0, sizeof(mbox_sts)); 927d00efe3fSMike Christie 928d00efe3fSMike Christie if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)) { 929d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: get ifcb failed\n", __func__); 930d00efe3fSMike Christie rval = -EIO; 931d00efe3fSMike Christie goto exit_init_fw_cb; 932d00efe3fSMike Christie } 933d00efe3fSMike Christie 93400c31889SMike Christie nla_for_each_attr(attr, data, len, rem) { 93500c31889SMike Christie iface_param = nla_data(attr); 936d00efe3fSMike Christie 937d00efe3fSMike Christie if (iface_param->param_type != ISCSI_NET_PARAM) 938d00efe3fSMike Christie continue; 939d00efe3fSMike Christie 940d00efe3fSMike Christie switch (iface_param->iface_type) { 941d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV4: 942d00efe3fSMike Christie switch (iface_param->iface_num) { 943d00efe3fSMike Christie case 0: 944d00efe3fSMike Christie qla4xxx_set_ipv4(ha, iface_param, init_fw_cb); 945d00efe3fSMike Christie break; 946d00efe3fSMike Christie default: 947d00efe3fSMike Christie /* Cannot have more than one IPv4 interface */ 948d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv4 iface " 949d00efe3fSMike Christie "number = %d\n", 950d00efe3fSMike Christie iface_param->iface_num); 951d00efe3fSMike Christie break; 952d00efe3fSMike Christie } 953d00efe3fSMike Christie break; 954d00efe3fSMike Christie case ISCSI_IFACE_TYPE_IPV6: 955d00efe3fSMike Christie switch (iface_param->iface_num) { 956d00efe3fSMike Christie case 0: 957d00efe3fSMike Christie case 1: 958d00efe3fSMike Christie qla4xxx_set_ipv6(ha, iface_param, init_fw_cb); 959d00efe3fSMike Christie break; 960d00efe3fSMike Christie default: 961d00efe3fSMike Christie /* Cannot have more than two IPv6 interface */ 962d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid IPv6 iface " 963d00efe3fSMike Christie "number = %d\n", 964d00efe3fSMike Christie iface_param->iface_num); 965d00efe3fSMike Christie break; 966d00efe3fSMike Christie } 967d00efe3fSMike Christie break; 968d00efe3fSMike Christie default: 969d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "Invalid iface type\n"); 970d00efe3fSMike Christie break; 971d00efe3fSMike Christie } 972d00efe3fSMike Christie } 973d00efe3fSMike Christie 974d00efe3fSMike Christie init_fw_cb->cookie = cpu_to_le32(0x11BEAD5A); 975d00efe3fSMike Christie 976d00efe3fSMike Christie rval = qla4xxx_set_flash(ha, init_fw_cb_dma, FLASH_SEGMENT_IFCB, 977d00efe3fSMike Christie sizeof(struct addr_ctrl_blk), 978d00efe3fSMike Christie FLASH_OPT_RMW_COMMIT); 979d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 980d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set flash mbx failed\n", 981d00efe3fSMike Christie __func__); 982d00efe3fSMike Christie rval = -EIO; 983d00efe3fSMike Christie goto exit_init_fw_cb; 984d00efe3fSMike Christie } 985d00efe3fSMike Christie 986ce505f9dSVikas Chaudhary rval = qla4xxx_disable_acb(ha); 987ce505f9dSVikas Chaudhary if (rval != QLA_SUCCESS) { 988ce505f9dSVikas Chaudhary ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n", 989ce505f9dSVikas Chaudhary __func__); 990ce505f9dSVikas Chaudhary rval = -EIO; 991ce505f9dSVikas Chaudhary goto exit_init_fw_cb; 992ce505f9dSVikas Chaudhary } 993ce505f9dSVikas Chaudhary 994ce505f9dSVikas Chaudhary wait_for_completion_timeout(&ha->disable_acb_comp, 995ce505f9dSVikas Chaudhary DISABLE_ACB_TOV * HZ); 996d00efe3fSMike Christie 997d00efe3fSMike Christie qla4xxx_initcb_to_acb(init_fw_cb); 998d00efe3fSMike Christie 999d00efe3fSMike Christie rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma); 1000d00efe3fSMike Christie if (rval != QLA_SUCCESS) { 1001d00efe3fSMike Christie ql4_printk(KERN_ERR, ha, "%s: set acb mbx failed\n", 1002d00efe3fSMike Christie __func__); 1003d00efe3fSMike Christie rval = -EIO; 1004d00efe3fSMike Christie goto exit_init_fw_cb; 1005d00efe3fSMike Christie } 1006d00efe3fSMike Christie 1007d00efe3fSMike Christie memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk)); 1008d00efe3fSMike Christie qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb, 1009d00efe3fSMike Christie init_fw_cb_dma); 1010d00efe3fSMike Christie 1011d00efe3fSMike Christie exit_init_fw_cb: 1012d00efe3fSMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), 1013d00efe3fSMike Christie init_fw_cb, init_fw_cb_dma); 1014d00efe3fSMike Christie 1015d00efe3fSMike Christie return rval; 1016d00efe3fSMike Christie } 1017d00efe3fSMike Christie 1018b3a271a9SManish Rangankar static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn, 1019afaf5a2dSDavid Somayajulu enum iscsi_param param, char *buf) 1020afaf5a2dSDavid Somayajulu { 1021b3a271a9SManish Rangankar struct iscsi_conn *conn; 1022b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1023b3a271a9SManish Rangankar struct sockaddr *dst_addr; 1024b3a271a9SManish Rangankar int len = 0; 1025afaf5a2dSDavid Somayajulu 1026b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1027b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1028b3a271a9SManish Rangankar dst_addr = &qla_conn->qla_ep->dst_addr; 1029afaf5a2dSDavid Somayajulu 1030afaf5a2dSDavid Somayajulu switch (param) { 1031afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_PORT: 1032afaf5a2dSDavid Somayajulu case ISCSI_PARAM_CONN_ADDRESS: 1033b3a271a9SManish Rangankar return iscsi_conn_get_addr_param((struct sockaddr_storage *) 1034b3a271a9SManish Rangankar dst_addr, param, buf); 1035afaf5a2dSDavid Somayajulu default: 1036b3a271a9SManish Rangankar return iscsi_conn_get_param(cls_conn, param, buf); 1037afaf5a2dSDavid Somayajulu } 1038afaf5a2dSDavid Somayajulu 1039afaf5a2dSDavid Somayajulu return len; 1040b3a271a9SManish Rangankar 1041afaf5a2dSDavid Somayajulu } 1042afaf5a2dSDavid Somayajulu 104313483730SMike Christie int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index) 104413483730SMike Christie { 104513483730SMike Christie uint32_t mbx_sts = 0; 104613483730SMike Christie uint16_t tmp_ddb_index; 104713483730SMike Christie int ret; 104813483730SMike Christie 104913483730SMike Christie get_ddb_index: 105013483730SMike Christie tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES); 105113483730SMike Christie 105213483730SMike Christie if (tmp_ddb_index >= MAX_DDB_ENTRIES) { 105313483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 105413483730SMike Christie "Free DDB index not available\n")); 105513483730SMike Christie ret = QLA_ERROR; 105613483730SMike Christie goto exit_get_ddb_index; 105713483730SMike Christie } 105813483730SMike Christie 105913483730SMike Christie if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map)) 106013483730SMike Christie goto get_ddb_index; 106113483730SMike Christie 106213483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 106313483730SMike Christie "Found a free DDB index at %d\n", tmp_ddb_index)); 106413483730SMike Christie ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts); 106513483730SMike Christie if (ret == QLA_ERROR) { 106613483730SMike Christie if (mbx_sts == MBOX_STS_COMMAND_ERROR) { 106713483730SMike Christie ql4_printk(KERN_INFO, ha, 106813483730SMike Christie "DDB index = %d not available trying next\n", 106913483730SMike Christie tmp_ddb_index); 107013483730SMike Christie goto get_ddb_index; 107113483730SMike Christie } 107213483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 107313483730SMike Christie "Free FW DDB not available\n")); 107413483730SMike Christie } 107513483730SMike Christie 107613483730SMike Christie *ddb_index = tmp_ddb_index; 107713483730SMike Christie 107813483730SMike Christie exit_get_ddb_index: 107913483730SMike Christie return ret; 108013483730SMike Christie } 108113483730SMike Christie 108213483730SMike Christie static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha, 108313483730SMike Christie struct ddb_entry *ddb_entry, 108413483730SMike Christie char *existing_ipaddr, 108513483730SMike Christie char *user_ipaddr) 108613483730SMike Christie { 108713483730SMike Christie uint8_t dst_ipaddr[IPv6_ADDR_LEN]; 108813483730SMike Christie char formatted_ipaddr[DDB_IPADDR_LEN]; 108913483730SMike Christie int status = QLA_SUCCESS, ret = 0; 109013483730SMike Christie 109113483730SMike Christie if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) { 109213483730SMike Christie ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 109313483730SMike Christie '\0', NULL); 109413483730SMike Christie if (ret == 0) { 109513483730SMike Christie status = QLA_ERROR; 109613483730SMike Christie goto out_match; 109713483730SMike Christie } 109813483730SMike Christie ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr); 109913483730SMike Christie } else { 110013483730SMike Christie ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr, 110113483730SMike Christie '\0', NULL); 110213483730SMike Christie if (ret == 0) { 110313483730SMike Christie status = QLA_ERROR; 110413483730SMike Christie goto out_match; 110513483730SMike Christie } 110613483730SMike Christie ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr); 110713483730SMike Christie } 110813483730SMike Christie 110913483730SMike Christie if (strcmp(existing_ipaddr, formatted_ipaddr)) 111013483730SMike Christie status = QLA_ERROR; 111113483730SMike Christie 111213483730SMike Christie out_match: 111313483730SMike Christie return status; 111413483730SMike Christie } 111513483730SMike Christie 111613483730SMike Christie static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha, 111713483730SMike Christie struct iscsi_cls_conn *cls_conn) 111813483730SMike Christie { 111913483730SMike Christie int idx = 0, max_ddbs, rval; 112013483730SMike Christie struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 112113483730SMike Christie struct iscsi_session *sess, *existing_sess; 112213483730SMike Christie struct iscsi_conn *conn, *existing_conn; 112313483730SMike Christie struct ddb_entry *ddb_entry; 112413483730SMike Christie 112513483730SMike Christie sess = cls_sess->dd_data; 112613483730SMike Christie conn = cls_conn->dd_data; 112713483730SMike Christie 112813483730SMike Christie if (sess->targetname == NULL || 112913483730SMike Christie conn->persistent_address == NULL || 113013483730SMike Christie conn->persistent_port == 0) 113113483730SMike Christie return QLA_ERROR; 113213483730SMike Christie 113313483730SMike Christie max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 113413483730SMike Christie MAX_DEV_DB_ENTRIES; 113513483730SMike Christie 113613483730SMike Christie for (idx = 0; idx < max_ddbs; idx++) { 113713483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 113813483730SMike Christie if (ddb_entry == NULL) 113913483730SMike Christie continue; 114013483730SMike Christie 114113483730SMike Christie if (ddb_entry->ddb_type != FLASH_DDB) 114213483730SMike Christie continue; 114313483730SMike Christie 114413483730SMike Christie existing_sess = ddb_entry->sess->dd_data; 114513483730SMike Christie existing_conn = ddb_entry->conn->dd_data; 114613483730SMike Christie 114713483730SMike Christie if (existing_sess->targetname == NULL || 114813483730SMike Christie existing_conn->persistent_address == NULL || 114913483730SMike Christie existing_conn->persistent_port == 0) 115013483730SMike Christie continue; 115113483730SMike Christie 115213483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 115313483730SMike Christie "IQN = %s User IQN = %s\n", 115413483730SMike Christie existing_sess->targetname, 115513483730SMike Christie sess->targetname)); 115613483730SMike Christie 115713483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 115813483730SMike Christie "IP = %s User IP = %s\n", 115913483730SMike Christie existing_conn->persistent_address, 116013483730SMike Christie conn->persistent_address)); 116113483730SMike Christie 116213483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 116313483730SMike Christie "Port = %d User Port = %d\n", 116413483730SMike Christie existing_conn->persistent_port, 116513483730SMike Christie conn->persistent_port)); 116613483730SMike Christie 116713483730SMike Christie if (strcmp(existing_sess->targetname, sess->targetname)) 116813483730SMike Christie continue; 116913483730SMike Christie rval = qla4xxx_match_ipaddress(ha, ddb_entry, 117013483730SMike Christie existing_conn->persistent_address, 117113483730SMike Christie conn->persistent_address); 117213483730SMike Christie if (rval == QLA_ERROR) 117313483730SMike Christie continue; 117413483730SMike Christie if (existing_conn->persistent_port != conn->persistent_port) 117513483730SMike Christie continue; 117613483730SMike Christie break; 117713483730SMike Christie } 117813483730SMike Christie 117913483730SMike Christie if (idx == max_ddbs) 118013483730SMike Christie return QLA_ERROR; 118113483730SMike Christie 118213483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 118313483730SMike Christie "Match found in fwdb sessions\n")); 118413483730SMike Christie return QLA_SUCCESS; 118513483730SMike Christie } 118613483730SMike Christie 1187b3a271a9SManish Rangankar static struct iscsi_cls_session * 1188b3a271a9SManish Rangankar qla4xxx_session_create(struct iscsi_endpoint *ep, 1189b3a271a9SManish Rangankar uint16_t cmds_max, uint16_t qdepth, 1190b3a271a9SManish Rangankar uint32_t initial_cmdsn) 1191b3a271a9SManish Rangankar { 1192b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1193b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1194b3a271a9SManish Rangankar struct qla_endpoint *qla_ep; 1195b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 119613483730SMike Christie uint16_t ddb_index; 1197b3a271a9SManish Rangankar struct iscsi_session *sess; 1198b3a271a9SManish Rangankar struct sockaddr *dst_addr; 1199b3a271a9SManish Rangankar int ret; 1200b3a271a9SManish Rangankar 1201b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1202b3a271a9SManish Rangankar if (!ep) { 1203b3a271a9SManish Rangankar printk(KERN_ERR "qla4xxx: missing ep.\n"); 1204b3a271a9SManish Rangankar return NULL; 1205b3a271a9SManish Rangankar } 1206b3a271a9SManish Rangankar 1207b3a271a9SManish Rangankar qla_ep = ep->dd_data; 1208b3a271a9SManish Rangankar dst_addr = (struct sockaddr *)&qla_ep->dst_addr; 1209b3a271a9SManish Rangankar ha = to_qla_host(qla_ep->host); 1210736cf369SManish Rangankar 121113483730SMike Christie ret = qla4xxx_get_ddb_index(ha, &ddb_index); 121213483730SMike Christie if (ret == QLA_ERROR) 1213b3a271a9SManish Rangankar return NULL; 1214b3a271a9SManish Rangankar 1215b3a271a9SManish Rangankar cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host, 1216b3a271a9SManish Rangankar cmds_max, sizeof(struct ddb_entry), 1217b3a271a9SManish Rangankar sizeof(struct ql4_task_data), 1218b3a271a9SManish Rangankar initial_cmdsn, ddb_index); 1219b3a271a9SManish Rangankar if (!cls_sess) 1220b3a271a9SManish Rangankar return NULL; 1221b3a271a9SManish Rangankar 1222b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1223b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1224b3a271a9SManish Rangankar ddb_entry->fw_ddb_index = ddb_index; 1225b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 1226b3a271a9SManish Rangankar ddb_entry->ha = ha; 1227b3a271a9SManish Rangankar ddb_entry->sess = cls_sess; 122813483730SMike Christie ddb_entry->unblock_sess = qla4xxx_unblock_ddb; 122913483730SMike Christie ddb_entry->ddb_change = qla4xxx_ddb_change; 1230b3a271a9SManish Rangankar cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 1231b3a271a9SManish Rangankar ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry; 1232b3a271a9SManish Rangankar ha->tot_ddbs++; 1233b3a271a9SManish Rangankar 1234b3a271a9SManish Rangankar return cls_sess; 1235b3a271a9SManish Rangankar } 1236b3a271a9SManish Rangankar 1237b3a271a9SManish Rangankar static void qla4xxx_session_destroy(struct iscsi_cls_session *cls_sess) 1238b3a271a9SManish Rangankar { 1239b3a271a9SManish Rangankar struct iscsi_session *sess; 1240b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1241b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1242b3a271a9SManish Rangankar unsigned long flags; 1243b3a271a9SManish Rangankar 1244b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1245b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1246b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1247b3a271a9SManish Rangankar ha = ddb_entry->ha; 1248b3a271a9SManish Rangankar 1249736cf369SManish Rangankar qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 1250736cf369SManish Rangankar 1251b3a271a9SManish Rangankar spin_lock_irqsave(&ha->hardware_lock, flags); 1252b3a271a9SManish Rangankar qla4xxx_free_ddb(ha, ddb_entry); 1253b3a271a9SManish Rangankar spin_unlock_irqrestore(&ha->hardware_lock, flags); 1254b3a271a9SManish Rangankar iscsi_session_teardown(cls_sess); 1255b3a271a9SManish Rangankar } 1256b3a271a9SManish Rangankar 1257b3a271a9SManish Rangankar static struct iscsi_cls_conn * 1258b3a271a9SManish Rangankar qla4xxx_conn_create(struct iscsi_cls_session *cls_sess, uint32_t conn_idx) 1259b3a271a9SManish Rangankar { 1260b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1261b3a271a9SManish Rangankar struct iscsi_session *sess; 1262b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1263b3a271a9SManish Rangankar 1264b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1265b3a271a9SManish Rangankar cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), 1266b3a271a9SManish Rangankar conn_idx); 1267ff1d0319SMike Christie if (!cls_conn) 1268ff1d0319SMike Christie return NULL; 1269ff1d0319SMike Christie 1270b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1271b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1272b3a271a9SManish Rangankar ddb_entry->conn = cls_conn; 1273b3a271a9SManish Rangankar 1274b3a271a9SManish Rangankar return cls_conn; 1275b3a271a9SManish Rangankar } 1276b3a271a9SManish Rangankar 1277b3a271a9SManish Rangankar static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, 1278b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn, 1279b3a271a9SManish Rangankar uint64_t transport_fd, int is_leading) 1280b3a271a9SManish Rangankar { 1281b3a271a9SManish Rangankar struct iscsi_conn *conn; 1282b3a271a9SManish Rangankar struct qla_conn *qla_conn; 1283b3a271a9SManish Rangankar struct iscsi_endpoint *ep; 1284b3a271a9SManish Rangankar 1285b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1286b3a271a9SManish Rangankar 1287b3a271a9SManish Rangankar if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) 1288b3a271a9SManish Rangankar return -EINVAL; 1289b3a271a9SManish Rangankar ep = iscsi_lookup_endpoint(transport_fd); 1290b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1291b3a271a9SManish Rangankar qla_conn = conn->dd_data; 1292b3a271a9SManish Rangankar qla_conn->qla_ep = ep->dd_data; 1293b3a271a9SManish Rangankar return 0; 1294b3a271a9SManish Rangankar } 1295b3a271a9SManish Rangankar 1296b3a271a9SManish Rangankar static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn) 1297b3a271a9SManish Rangankar { 1298b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1299b3a271a9SManish Rangankar struct iscsi_session *sess; 1300b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1301b3a271a9SManish Rangankar struct scsi_qla_host *ha; 130213483730SMike Christie struct dev_db_entry *fw_ddb_entry = NULL; 1303b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1304b3a271a9SManish Rangankar uint32_t mbx_sts = 0; 1305b3a271a9SManish Rangankar int ret = 0; 1306b3a271a9SManish Rangankar int status = QLA_SUCCESS; 1307b3a271a9SManish Rangankar 1308b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1309b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1310b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1311b3a271a9SManish Rangankar ha = ddb_entry->ha; 1312b3a271a9SManish Rangankar 131313483730SMike Christie /* Check if we have matching FW DDB, if yes then do not 131413483730SMike Christie * login to this target. This could cause target to logout previous 131513483730SMike Christie * connection 131613483730SMike Christie */ 131713483730SMike Christie ret = qla4xxx_match_fwdb_session(ha, cls_conn); 131813483730SMike Christie if (ret == QLA_SUCCESS) { 131913483730SMike Christie ql4_printk(KERN_INFO, ha, 132013483730SMike Christie "Session already exist in FW.\n"); 132113483730SMike Christie ret = -EEXIST; 132213483730SMike Christie goto exit_conn_start; 132313483730SMike Christie } 132413483730SMike Christie 1325b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1326b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1327b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1328b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1329b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 133013483730SMike Christie ret = -ENOMEM; 133113483730SMike Christie goto exit_conn_start; 1332b3a271a9SManish Rangankar } 1333b3a271a9SManish Rangankar 1334b3a271a9SManish Rangankar ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts); 1335b3a271a9SManish Rangankar if (ret) { 1336b3a271a9SManish Rangankar /* If iscsid is stopped and started then no need to do 1337b3a271a9SManish Rangankar * set param again since ddb state will be already 1338b3a271a9SManish Rangankar * active and FW does not allow set ddb to an 1339b3a271a9SManish Rangankar * active session. 1340b3a271a9SManish Rangankar */ 1341b3a271a9SManish Rangankar if (mbx_sts) 1342b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == 1343f922da79SManish Rangankar DDB_DS_SESSION_ACTIVE) { 134413483730SMike Christie ddb_entry->unblock_sess(ddb_entry->sess); 1345b3a271a9SManish Rangankar goto exit_set_param; 1346f922da79SManish Rangankar } 1347b3a271a9SManish Rangankar 1348b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Failed set param for index[%d]\n", 1349b3a271a9SManish Rangankar __func__, ddb_entry->fw_ddb_index); 1350b3a271a9SManish Rangankar goto exit_conn_start; 1351b3a271a9SManish Rangankar } 1352b3a271a9SManish Rangankar 1353b3a271a9SManish Rangankar status = qla4xxx_conn_open(ha, ddb_entry->fw_ddb_index); 1354b3a271a9SManish Rangankar if (status == QLA_ERROR) { 13550e7e8501SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Login failed: %s\n", __func__, 13560e7e8501SManish Rangankar sess->targetname); 1357b3a271a9SManish Rangankar ret = -EINVAL; 1358b3a271a9SManish Rangankar goto exit_conn_start; 1359b3a271a9SManish Rangankar } 1360b3a271a9SManish Rangankar 136198270ab4SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) 1362b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_LOGIN_IN_PROCESS; 1363b3a271a9SManish Rangankar 136498270ab4SManish Rangankar DEBUG2(printk(KERN_INFO "%s: DDB state [%d]\n", __func__, 136598270ab4SManish Rangankar ddb_entry->fw_ddb_device_state)); 136698270ab4SManish Rangankar 1367b3a271a9SManish Rangankar exit_set_param: 1368b3a271a9SManish Rangankar ret = 0; 1369b3a271a9SManish Rangankar 1370b3a271a9SManish Rangankar exit_conn_start: 137113483730SMike Christie if (fw_ddb_entry) 1372b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1373b3a271a9SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 1374b3a271a9SManish Rangankar return ret; 1375b3a271a9SManish Rangankar } 1376b3a271a9SManish Rangankar 1377b3a271a9SManish Rangankar static void qla4xxx_conn_destroy(struct iscsi_cls_conn *cls_conn) 1378b3a271a9SManish Rangankar { 1379b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn); 1380b3a271a9SManish Rangankar struct iscsi_session *sess; 1381b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1382b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1383b3a271a9SManish Rangankar int options; 1384b3a271a9SManish Rangankar 1385b3a271a9SManish Rangankar DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 1386b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1387b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1388b3a271a9SManish Rangankar ha = ddb_entry->ha; 1389b3a271a9SManish Rangankar 1390b3a271a9SManish Rangankar options = LOGOUT_OPTION_CLOSE_SESSION; 1391b3a271a9SManish Rangankar if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) 1392b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__); 1393b3a271a9SManish Rangankar } 1394b3a271a9SManish Rangankar 1395b3a271a9SManish Rangankar static void qla4xxx_task_work(struct work_struct *wdata) 1396b3a271a9SManish Rangankar { 1397b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1398b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1399b3a271a9SManish Rangankar struct passthru_status *sts; 1400b3a271a9SManish Rangankar struct iscsi_task *task; 1401b3a271a9SManish Rangankar struct iscsi_hdr *hdr; 1402b3a271a9SManish Rangankar uint8_t *data; 1403b3a271a9SManish Rangankar uint32_t data_len; 1404b3a271a9SManish Rangankar struct iscsi_conn *conn; 1405b3a271a9SManish Rangankar int hdr_len; 1406b3a271a9SManish Rangankar itt_t itt; 1407b3a271a9SManish Rangankar 1408b3a271a9SManish Rangankar task_data = container_of(wdata, struct ql4_task_data, task_work); 1409b3a271a9SManish Rangankar ha = task_data->ha; 1410b3a271a9SManish Rangankar task = task_data->task; 1411b3a271a9SManish Rangankar sts = &task_data->sts; 1412b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1413b3a271a9SManish Rangankar 1414b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Status returned\n")); 1415b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(sts, 64)); 1416b3a271a9SManish Rangankar DEBUG3(printk(KERN_INFO "Response buffer")); 1417b3a271a9SManish Rangankar DEBUG3(qla4xxx_dump_buffer(task_data->resp_buffer, 64)); 1418b3a271a9SManish Rangankar 1419b3a271a9SManish Rangankar conn = task->conn; 1420b3a271a9SManish Rangankar 1421b3a271a9SManish Rangankar switch (sts->completionStatus) { 1422b3a271a9SManish Rangankar case PASSTHRU_STATUS_COMPLETE: 1423b3a271a9SManish Rangankar hdr = (struct iscsi_hdr *)task_data->resp_buffer; 1424b3a271a9SManish Rangankar /* Assign back the itt in hdr, until we use the PREASSIGN_TAG */ 1425b3a271a9SManish Rangankar itt = sts->handle; 1426b3a271a9SManish Rangankar hdr->itt = itt; 1427b3a271a9SManish Rangankar data = task_data->resp_buffer + hdr_len; 1428b3a271a9SManish Rangankar data_len = task_data->resp_len - hdr_len; 1429b3a271a9SManish Rangankar iscsi_complete_pdu(conn, hdr, data, data_len); 1430b3a271a9SManish Rangankar break; 1431b3a271a9SManish Rangankar default: 1432b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, "Passthru failed status = 0x%x\n", 1433b3a271a9SManish Rangankar sts->completionStatus); 1434b3a271a9SManish Rangankar break; 1435b3a271a9SManish Rangankar } 1436b3a271a9SManish Rangankar return; 1437b3a271a9SManish Rangankar } 1438b3a271a9SManish Rangankar 1439b3a271a9SManish Rangankar static int qla4xxx_alloc_pdu(struct iscsi_task *task, uint8_t opcode) 1440b3a271a9SManish Rangankar { 1441b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1442b3a271a9SManish Rangankar struct iscsi_session *sess; 1443b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1444b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1445b3a271a9SManish Rangankar int hdr_len; 1446b3a271a9SManish Rangankar 1447b3a271a9SManish Rangankar sess = task->conn->session; 1448b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1449b3a271a9SManish Rangankar ha = ddb_entry->ha; 1450b3a271a9SManish Rangankar task_data = task->dd_data; 1451b3a271a9SManish Rangankar memset(task_data, 0, sizeof(struct ql4_task_data)); 1452b3a271a9SManish Rangankar 1453b3a271a9SManish Rangankar if (task->sc) { 1454b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, 1455b3a271a9SManish Rangankar "%s: SCSI Commands not implemented\n", __func__); 1456b3a271a9SManish Rangankar return -EINVAL; 1457b3a271a9SManish Rangankar } 1458b3a271a9SManish Rangankar 1459b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1460b3a271a9SManish Rangankar task_data->ha = ha; 1461b3a271a9SManish Rangankar task_data->task = task; 1462b3a271a9SManish Rangankar 1463b3a271a9SManish Rangankar if (task->data_count) { 1464b3a271a9SManish Rangankar task_data->data_dma = dma_map_single(&ha->pdev->dev, task->data, 1465b3a271a9SManish Rangankar task->data_count, 1466b3a271a9SManish Rangankar PCI_DMA_TODEVICE); 1467b3a271a9SManish Rangankar } 1468b3a271a9SManish Rangankar 1469b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1470b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1471b3a271a9SManish Rangankar 147269ca216eSManish Rangankar task_data->resp_len = task->conn->max_recv_dlength + hdr_len; 1473b3a271a9SManish Rangankar task_data->resp_buffer = dma_alloc_coherent(&ha->pdev->dev, 1474b3a271a9SManish Rangankar task_data->resp_len, 1475b3a271a9SManish Rangankar &task_data->resp_dma, 1476b3a271a9SManish Rangankar GFP_ATOMIC); 1477b3a271a9SManish Rangankar if (!task_data->resp_buffer) 1478b3a271a9SManish Rangankar goto exit_alloc_pdu; 1479b3a271a9SManish Rangankar 148069ca216eSManish Rangankar task_data->req_len = task->data_count + hdr_len; 1481b3a271a9SManish Rangankar task_data->req_buffer = dma_alloc_coherent(&ha->pdev->dev, 148269ca216eSManish Rangankar task_data->req_len, 1483b3a271a9SManish Rangankar &task_data->req_dma, 1484b3a271a9SManish Rangankar GFP_ATOMIC); 1485b3a271a9SManish Rangankar if (!task_data->req_buffer) 1486b3a271a9SManish Rangankar goto exit_alloc_pdu; 1487b3a271a9SManish Rangankar 1488b3a271a9SManish Rangankar task->hdr = task_data->req_buffer; 1489b3a271a9SManish Rangankar 1490b3a271a9SManish Rangankar INIT_WORK(&task_data->task_work, qla4xxx_task_work); 1491b3a271a9SManish Rangankar 1492b3a271a9SManish Rangankar return 0; 1493b3a271a9SManish Rangankar 1494b3a271a9SManish Rangankar exit_alloc_pdu: 1495b3a271a9SManish Rangankar if (task_data->resp_buffer) 1496b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1497b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 1498b3a271a9SManish Rangankar 1499b3a271a9SManish Rangankar if (task_data->req_buffer) 150069ca216eSManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1501b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1502b3a271a9SManish Rangankar return -ENOMEM; 1503b3a271a9SManish Rangankar } 1504b3a271a9SManish Rangankar 1505b3a271a9SManish Rangankar static void qla4xxx_task_cleanup(struct iscsi_task *task) 1506b3a271a9SManish Rangankar { 1507b3a271a9SManish Rangankar struct ql4_task_data *task_data; 1508b3a271a9SManish Rangankar struct iscsi_session *sess; 1509b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 1510b3a271a9SManish Rangankar struct scsi_qla_host *ha; 1511b3a271a9SManish Rangankar int hdr_len; 1512b3a271a9SManish Rangankar 1513b3a271a9SManish Rangankar hdr_len = sizeof(struct iscsi_hdr); 1514b3a271a9SManish Rangankar sess = task->conn->session; 1515b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 1516b3a271a9SManish Rangankar ha = ddb_entry->ha; 1517b3a271a9SManish Rangankar task_data = task->dd_data; 1518b3a271a9SManish Rangankar 1519b3a271a9SManish Rangankar if (task->data_count) { 1520b3a271a9SManish Rangankar dma_unmap_single(&ha->pdev->dev, task_data->data_dma, 1521b3a271a9SManish Rangankar task->data_count, PCI_DMA_TODEVICE); 1522b3a271a9SManish Rangankar } 1523b3a271a9SManish Rangankar 1524b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MaxRecvLen %u, iscsi hrd %d\n", 1525b3a271a9SManish Rangankar __func__, task->conn->max_recv_dlength, hdr_len)); 1526b3a271a9SManish Rangankar 1527b3a271a9SManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->resp_len, 1528b3a271a9SManish Rangankar task_data->resp_buffer, task_data->resp_dma); 152969ca216eSManish Rangankar dma_free_coherent(&ha->pdev->dev, task_data->req_len, 1530b3a271a9SManish Rangankar task_data->req_buffer, task_data->req_dma); 1531b3a271a9SManish Rangankar return; 1532b3a271a9SManish Rangankar } 1533b3a271a9SManish Rangankar 1534b3a271a9SManish Rangankar static int qla4xxx_task_xmit(struct iscsi_task *task) 1535b3a271a9SManish Rangankar { 1536b3a271a9SManish Rangankar struct scsi_cmnd *sc = task->sc; 1537b3a271a9SManish Rangankar struct iscsi_session *sess = task->conn->session; 1538b3a271a9SManish Rangankar struct ddb_entry *ddb_entry = sess->dd_data; 1539b3a271a9SManish Rangankar struct scsi_qla_host *ha = ddb_entry->ha; 1540b3a271a9SManish Rangankar 1541b3a271a9SManish Rangankar if (!sc) 1542b3a271a9SManish Rangankar return qla4xxx_send_passthru0(task); 1543b3a271a9SManish Rangankar 1544b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: scsi cmd xmit not implemented\n", 1545b3a271a9SManish Rangankar __func__); 1546b3a271a9SManish Rangankar return -ENOSYS; 1547b3a271a9SManish Rangankar } 1548b3a271a9SManish Rangankar 154913483730SMike Christie static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha, 155013483730SMike Christie struct dev_db_entry *fw_ddb_entry, 155113483730SMike Christie struct iscsi_cls_session *cls_sess, 155213483730SMike Christie struct iscsi_cls_conn *cls_conn) 155313483730SMike Christie { 155413483730SMike Christie int buflen = 0; 155513483730SMike Christie struct iscsi_session *sess; 155613483730SMike Christie struct iscsi_conn *conn; 155713483730SMike Christie char ip_addr[DDB_IPADDR_LEN]; 155813483730SMike Christie uint16_t options = 0; 155913483730SMike Christie 156013483730SMike Christie sess = cls_sess->dd_data; 156113483730SMike Christie conn = cls_conn->dd_data; 156213483730SMike Christie 156313483730SMike Christie conn->max_recv_dlength = BYTE_UNITS * 156413483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 156513483730SMike Christie 156613483730SMike Christie conn->max_xmit_dlength = BYTE_UNITS * 156713483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 156813483730SMike Christie 156913483730SMike Christie sess->initial_r2t_en = 157013483730SMike Christie (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 157113483730SMike Christie 157213483730SMike Christie sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 157313483730SMike Christie 157413483730SMike Christie sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 157513483730SMike Christie 157613483730SMike Christie sess->first_burst = BYTE_UNITS * 157713483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 157813483730SMike Christie 157913483730SMike Christie sess->max_burst = BYTE_UNITS * 158013483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 158113483730SMike Christie 158213483730SMike Christie sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 158313483730SMike Christie 158413483730SMike Christie sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 158513483730SMike Christie 158613483730SMike Christie conn->persistent_port = le16_to_cpu(fw_ddb_entry->port); 158713483730SMike Christie 158813483730SMike Christie sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 158913483730SMike Christie 159013483730SMike Christie options = le16_to_cpu(fw_ddb_entry->options); 159113483730SMike Christie if (options & DDB_OPT_IPV6_DEVICE) 159213483730SMike Christie sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr); 159313483730SMike Christie else 159413483730SMike Christie sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr); 159513483730SMike Christie 159613483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME, 159713483730SMike Christie (char *)fw_ddb_entry->iscsi_name, buflen); 159813483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME, 159913483730SMike Christie (char *)ha->name_string, buflen); 160013483730SMike Christie iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS, 160113483730SMike Christie (char *)ip_addr, buflen); 16026c1b8789SVikas Chaudhary iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS, 16036c1b8789SVikas Chaudhary (char *)fw_ddb_entry->iscsi_alias, buflen); 160413483730SMike Christie } 160513483730SMike Christie 160613483730SMike Christie void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha, 160713483730SMike Christie struct ddb_entry *ddb_entry) 160813483730SMike Christie { 160913483730SMike Christie struct iscsi_cls_session *cls_sess; 161013483730SMike Christie struct iscsi_cls_conn *cls_conn; 161113483730SMike Christie uint32_t ddb_state; 161213483730SMike Christie dma_addr_t fw_ddb_entry_dma; 161313483730SMike Christie struct dev_db_entry *fw_ddb_entry; 161413483730SMike Christie 161513483730SMike Christie fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 161613483730SMike Christie &fw_ddb_entry_dma, GFP_KERNEL); 161713483730SMike Christie if (!fw_ddb_entry) { 161813483730SMike Christie ql4_printk(KERN_ERR, ha, 161913483730SMike Christie "%s: Unable to allocate dma buffer\n", __func__); 162013483730SMike Christie goto exit_session_conn_fwddb_param; 162113483730SMike Christie } 162213483730SMike Christie 162313483730SMike Christie if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 162413483730SMike Christie fw_ddb_entry_dma, NULL, NULL, &ddb_state, 162513483730SMike Christie NULL, NULL, NULL) == QLA_ERROR) { 162613483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 162713483730SMike Christie "get_ddb_entry for fw_ddb_index %d\n", 162813483730SMike Christie ha->host_no, __func__, 162913483730SMike Christie ddb_entry->fw_ddb_index)); 163013483730SMike Christie goto exit_session_conn_fwddb_param; 163113483730SMike Christie } 163213483730SMike Christie 163313483730SMike Christie cls_sess = ddb_entry->sess; 163413483730SMike Christie 163513483730SMike Christie cls_conn = ddb_entry->conn; 163613483730SMike Christie 163713483730SMike Christie /* Update params */ 163813483730SMike Christie qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 163913483730SMike Christie 164013483730SMike Christie exit_session_conn_fwddb_param: 164113483730SMike Christie if (fw_ddb_entry) 164213483730SMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 164313483730SMike Christie fw_ddb_entry, fw_ddb_entry_dma); 164413483730SMike Christie } 164513483730SMike Christie 1646b3a271a9SManish Rangankar void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha, 1647b3a271a9SManish Rangankar struct ddb_entry *ddb_entry) 1648b3a271a9SManish Rangankar { 1649b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 1650b3a271a9SManish Rangankar struct iscsi_cls_conn *cls_conn; 1651b3a271a9SManish Rangankar struct iscsi_session *sess; 1652b3a271a9SManish Rangankar struct iscsi_conn *conn; 1653b3a271a9SManish Rangankar uint32_t ddb_state; 1654b3a271a9SManish Rangankar dma_addr_t fw_ddb_entry_dma; 1655b3a271a9SManish Rangankar struct dev_db_entry *fw_ddb_entry; 1656b3a271a9SManish Rangankar 1657b3a271a9SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 1658b3a271a9SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 1659b3a271a9SManish Rangankar if (!fw_ddb_entry) { 1660b3a271a9SManish Rangankar ql4_printk(KERN_ERR, ha, 1661b3a271a9SManish Rangankar "%s: Unable to allocate dma buffer\n", __func__); 166213483730SMike Christie goto exit_session_conn_param; 1663b3a271a9SManish Rangankar } 1664b3a271a9SManish Rangankar 1665b3a271a9SManish Rangankar if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry, 1666b3a271a9SManish Rangankar fw_ddb_entry_dma, NULL, NULL, &ddb_state, 1667b3a271a9SManish Rangankar NULL, NULL, NULL) == QLA_ERROR) { 1668b3a271a9SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed " 1669b3a271a9SManish Rangankar "get_ddb_entry for fw_ddb_index %d\n", 1670b3a271a9SManish Rangankar ha->host_no, __func__, 1671b3a271a9SManish Rangankar ddb_entry->fw_ddb_index)); 167213483730SMike Christie goto exit_session_conn_param; 1673b3a271a9SManish Rangankar } 1674b3a271a9SManish Rangankar 1675b3a271a9SManish Rangankar cls_sess = ddb_entry->sess; 1676b3a271a9SManish Rangankar sess = cls_sess->dd_data; 1677b3a271a9SManish Rangankar 1678b3a271a9SManish Rangankar cls_conn = ddb_entry->conn; 1679b3a271a9SManish Rangankar conn = cls_conn->dd_data; 1680b3a271a9SManish Rangankar 168113483730SMike Christie /* Update timers after login */ 168213483730SMike Christie ddb_entry->default_relogin_timeout = 1683c28eaacaSNilesh Javali (le16_to_cpu(fw_ddb_entry->def_timeout) > LOGIN_TOV) && 1684c28eaacaSNilesh Javali (le16_to_cpu(fw_ddb_entry->def_timeout) < LOGIN_TOV * 10) ? 1685c28eaacaSNilesh Javali le16_to_cpu(fw_ddb_entry->def_timeout) : LOGIN_TOV; 168613483730SMike Christie ddb_entry->default_time2wait = 168713483730SMike Christie le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 168813483730SMike Christie 1689b3a271a9SManish Rangankar /* Update params */ 1690b3a271a9SManish Rangankar conn->max_recv_dlength = BYTE_UNITS * 1691b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len); 1692b3a271a9SManish Rangankar 1693b3a271a9SManish Rangankar conn->max_xmit_dlength = BYTE_UNITS * 1694b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len); 1695b3a271a9SManish Rangankar 1696b3a271a9SManish Rangankar sess->initial_r2t_en = 1697b3a271a9SManish Rangankar (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1698b3a271a9SManish Rangankar 1699b3a271a9SManish Rangankar sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t); 1700b3a271a9SManish Rangankar 1701b3a271a9SManish Rangankar sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options)); 1702b3a271a9SManish Rangankar 1703b3a271a9SManish Rangankar sess->first_burst = BYTE_UNITS * 1704b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len); 1705b3a271a9SManish Rangankar 1706b3a271a9SManish Rangankar sess->max_burst = BYTE_UNITS * 1707b3a271a9SManish Rangankar le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len); 1708b3a271a9SManish Rangankar 1709b3a271a9SManish Rangankar sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait); 1710b3a271a9SManish Rangankar 1711b3a271a9SManish Rangankar sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain); 1712b3a271a9SManish Rangankar 1713b3a271a9SManish Rangankar sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 1714b3a271a9SManish Rangankar 1715b3a271a9SManish Rangankar memcpy(sess->initiatorname, ha->name_string, 1716b3a271a9SManish Rangankar min(sizeof(ha->name_string), sizeof(sess->initiatorname))); 171713483730SMike Christie 17186c1b8789SVikas Chaudhary iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_ALIAS, 17196c1b8789SVikas Chaudhary (char *)fw_ddb_entry->iscsi_alias, 0); 17206c1b8789SVikas Chaudhary 172113483730SMike Christie exit_session_conn_param: 172213483730SMike Christie if (fw_ddb_entry) 172313483730SMike Christie dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 172413483730SMike Christie fw_ddb_entry, fw_ddb_entry_dma); 1725b3a271a9SManish Rangankar } 1726b3a271a9SManish Rangankar 1727afaf5a2dSDavid Somayajulu /* 1728afaf5a2dSDavid Somayajulu * Timer routines 1729afaf5a2dSDavid Somayajulu */ 1730afaf5a2dSDavid Somayajulu 1731afaf5a2dSDavid Somayajulu static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func, 1732afaf5a2dSDavid Somayajulu unsigned long interval) 1733afaf5a2dSDavid Somayajulu { 1734afaf5a2dSDavid Somayajulu DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n", 1735afaf5a2dSDavid Somayajulu __func__, ha->host->host_no)); 1736afaf5a2dSDavid Somayajulu init_timer(&ha->timer); 1737afaf5a2dSDavid Somayajulu ha->timer.expires = jiffies + interval * HZ; 1738afaf5a2dSDavid Somayajulu ha->timer.data = (unsigned long)ha; 1739afaf5a2dSDavid Somayajulu ha->timer.function = (void (*)(unsigned long))func; 1740afaf5a2dSDavid Somayajulu add_timer(&ha->timer); 1741afaf5a2dSDavid Somayajulu ha->timer_active = 1; 1742afaf5a2dSDavid Somayajulu } 1743afaf5a2dSDavid Somayajulu 1744afaf5a2dSDavid Somayajulu static void qla4xxx_stop_timer(struct scsi_qla_host *ha) 1745afaf5a2dSDavid Somayajulu { 1746afaf5a2dSDavid Somayajulu del_timer_sync(&ha->timer); 1747afaf5a2dSDavid Somayajulu ha->timer_active = 0; 1748afaf5a2dSDavid Somayajulu } 1749afaf5a2dSDavid Somayajulu 1750afaf5a2dSDavid Somayajulu /*** 1751b3a271a9SManish Rangankar * qla4xxx_mark_device_missing - blocks the session 1752b3a271a9SManish Rangankar * @cls_session: Pointer to the session to be blocked 1753afaf5a2dSDavid Somayajulu * @ddb_entry: Pointer to device database entry 1754afaf5a2dSDavid Somayajulu * 1755f4f5df23SVikas Chaudhary * This routine marks a device missing and close connection. 1756afaf5a2dSDavid Somayajulu **/ 1757b3a271a9SManish Rangankar void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session) 1758afaf5a2dSDavid Somayajulu { 1759b3a271a9SManish Rangankar iscsi_block_session(cls_session); 1760afaf5a2dSDavid Somayajulu } 1761afaf5a2dSDavid Somayajulu 1762f4f5df23SVikas Chaudhary /** 1763f4f5df23SVikas Chaudhary * qla4xxx_mark_all_devices_missing - mark all devices as missing. 1764f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 1765f4f5df23SVikas Chaudhary * 1766f4f5df23SVikas Chaudhary * This routine marks a device missing and resets the relogin retry count. 1767f4f5df23SVikas Chaudhary **/ 1768f4f5df23SVikas Chaudhary void qla4xxx_mark_all_devices_missing(struct scsi_qla_host *ha) 1769f4f5df23SVikas Chaudhary { 1770b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_mark_device_missing); 1771f4f5df23SVikas Chaudhary } 1772f4f5df23SVikas Chaudhary 1773afaf5a2dSDavid Somayajulu static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 1774afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry, 17758f0722caSVikas Chaudhary struct scsi_cmnd *cmd) 1776afaf5a2dSDavid Somayajulu { 1777afaf5a2dSDavid Somayajulu struct srb *srb; 1778afaf5a2dSDavid Somayajulu 1779afaf5a2dSDavid Somayajulu srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC); 1780afaf5a2dSDavid Somayajulu if (!srb) 1781afaf5a2dSDavid Somayajulu return srb; 1782afaf5a2dSDavid Somayajulu 178309a0f719SVikas Chaudhary kref_init(&srb->srb_ref); 1784afaf5a2dSDavid Somayajulu srb->ha = ha; 1785afaf5a2dSDavid Somayajulu srb->ddb = ddb_entry; 1786afaf5a2dSDavid Somayajulu srb->cmd = cmd; 1787afaf5a2dSDavid Somayajulu srb->flags = 0; 17885369887aSVikas Chaudhary CMD_SP(cmd) = (void *)srb; 1789afaf5a2dSDavid Somayajulu 1790afaf5a2dSDavid Somayajulu return srb; 1791afaf5a2dSDavid Somayajulu } 1792afaf5a2dSDavid Somayajulu 1793afaf5a2dSDavid Somayajulu static void qla4xxx_srb_free_dma(struct scsi_qla_host *ha, struct srb *srb) 1794afaf5a2dSDavid Somayajulu { 1795afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 1796afaf5a2dSDavid Somayajulu 1797afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 17985f7186c8SFUJITA Tomonori scsi_dma_unmap(cmd); 1799afaf5a2dSDavid Somayajulu srb->flags &= ~SRB_DMA_VALID; 1800afaf5a2dSDavid Somayajulu } 18015369887aSVikas Chaudhary CMD_SP(cmd) = NULL; 1802afaf5a2dSDavid Somayajulu } 1803afaf5a2dSDavid Somayajulu 180409a0f719SVikas Chaudhary void qla4xxx_srb_compl(struct kref *ref) 1805afaf5a2dSDavid Somayajulu { 180609a0f719SVikas Chaudhary struct srb *srb = container_of(ref, struct srb, srb_ref); 1807afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd = srb->cmd; 180809a0f719SVikas Chaudhary struct scsi_qla_host *ha = srb->ha; 1809afaf5a2dSDavid Somayajulu 1810afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1811afaf5a2dSDavid Somayajulu 1812afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1813afaf5a2dSDavid Somayajulu 1814afaf5a2dSDavid Somayajulu cmd->scsi_done(cmd); 1815afaf5a2dSDavid Somayajulu } 1816afaf5a2dSDavid Somayajulu 1817afaf5a2dSDavid Somayajulu /** 1818afaf5a2dSDavid Somayajulu * qla4xxx_queuecommand - scsi layer issues scsi command to driver. 18198f0722caSVikas Chaudhary * @host: scsi host 1820afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 1821afaf5a2dSDavid Somayajulu * 1822afaf5a2dSDavid Somayajulu * Remarks: 1823afaf5a2dSDavid Somayajulu * This routine is invoked by Linux to send a SCSI command to the driver. 1824afaf5a2dSDavid Somayajulu * The mid-level driver tries to ensure that queuecommand never gets 1825afaf5a2dSDavid Somayajulu * invoked concurrently with itself or the interrupt handler (although 1826afaf5a2dSDavid Somayajulu * the interrupt handler may call this routine as part of request- 1827afaf5a2dSDavid Somayajulu * completion handling). Unfortunely, it sometimes calls the scheduler 1828afaf5a2dSDavid Somayajulu * in interrupt context which is a big NO! NO!. 1829afaf5a2dSDavid Somayajulu **/ 18308f0722caSVikas Chaudhary static int qla4xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) 1831afaf5a2dSDavid Somayajulu { 18328f0722caSVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(host); 1833afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 18347fb1921bSMike Christie struct iscsi_cls_session *sess = ddb_entry->sess; 1835afaf5a2dSDavid Somayajulu struct srb *srb; 1836afaf5a2dSDavid Somayajulu int rval; 1837afaf5a2dSDavid Somayajulu 18382232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 18392232be0dSLalit Chandivade if (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags)) 18402232be0dSLalit Chandivade cmd->result = DID_NO_CONNECT << 16; 18412232be0dSLalit Chandivade else 18422232be0dSLalit Chandivade cmd->result = DID_REQUEUE << 16; 18432232be0dSLalit Chandivade goto qc_fail_command; 18442232be0dSLalit Chandivade } 18452232be0dSLalit Chandivade 18467fb1921bSMike Christie if (!sess) { 18477fb1921bSMike Christie cmd->result = DID_IMM_RETRY << 16; 18487fb1921bSMike Christie goto qc_fail_command; 18497fb1921bSMike Christie } 18507fb1921bSMike Christie 18517fb1921bSMike Christie rval = iscsi_session_chkready(sess); 18527fb1921bSMike Christie if (rval) { 18537fb1921bSMike Christie cmd->result = rval; 18547fb1921bSMike Christie goto qc_fail_command; 18557fb1921bSMike Christie } 18567fb1921bSMike Christie 1857f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 1858f4f5df23SVikas Chaudhary test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 1859f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA, &ha->dpc_flags) || 1860f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 1861f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 1862f4f5df23SVikas Chaudhary !test_bit(AF_ONLINE, &ha->flags) || 1863b3a271a9SManish Rangankar !test_bit(AF_LINK_UP, &ha->flags) || 1864f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) 1865477ffb9dSDavid C Somayajulu goto qc_host_busy; 1866477ffb9dSDavid C Somayajulu 18678f0722caSVikas Chaudhary srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd); 1868afaf5a2dSDavid Somayajulu if (!srb) 18698f0722caSVikas Chaudhary goto qc_host_busy; 1870afaf5a2dSDavid Somayajulu 1871afaf5a2dSDavid Somayajulu rval = qla4xxx_send_command_to_isp(ha, srb); 1872afaf5a2dSDavid Somayajulu if (rval != QLA_SUCCESS) 1873afaf5a2dSDavid Somayajulu goto qc_host_busy_free_sp; 1874afaf5a2dSDavid Somayajulu 1875afaf5a2dSDavid Somayajulu return 0; 1876afaf5a2dSDavid Somayajulu 1877afaf5a2dSDavid Somayajulu qc_host_busy_free_sp: 1878afaf5a2dSDavid Somayajulu qla4xxx_srb_free_dma(ha, srb); 1879afaf5a2dSDavid Somayajulu mempool_free(srb, ha->srb_mempool); 1880afaf5a2dSDavid Somayajulu 1881afaf5a2dSDavid Somayajulu qc_host_busy: 1882afaf5a2dSDavid Somayajulu return SCSI_MLQUEUE_HOST_BUSY; 1883afaf5a2dSDavid Somayajulu 1884afaf5a2dSDavid Somayajulu qc_fail_command: 18858f0722caSVikas Chaudhary cmd->scsi_done(cmd); 1886afaf5a2dSDavid Somayajulu 1887afaf5a2dSDavid Somayajulu return 0; 1888afaf5a2dSDavid Somayajulu } 1889afaf5a2dSDavid Somayajulu 1890afaf5a2dSDavid Somayajulu /** 1891afaf5a2dSDavid Somayajulu * qla4xxx_mem_free - frees memory allocated to adapter 1892afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 1893afaf5a2dSDavid Somayajulu * 1894afaf5a2dSDavid Somayajulu * Frees memory previously allocated by qla4xxx_mem_alloc 1895afaf5a2dSDavid Somayajulu **/ 1896afaf5a2dSDavid Somayajulu static void qla4xxx_mem_free(struct scsi_qla_host *ha) 1897afaf5a2dSDavid Somayajulu { 1898afaf5a2dSDavid Somayajulu if (ha->queues) 1899afaf5a2dSDavid Somayajulu dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues, 1900afaf5a2dSDavid Somayajulu ha->queues_dma); 1901afaf5a2dSDavid Somayajulu 1902afaf5a2dSDavid Somayajulu ha->queues_len = 0; 1903afaf5a2dSDavid Somayajulu ha->queues = NULL; 1904afaf5a2dSDavid Somayajulu ha->queues_dma = 0; 1905afaf5a2dSDavid Somayajulu ha->request_ring = NULL; 1906afaf5a2dSDavid Somayajulu ha->request_dma = 0; 1907afaf5a2dSDavid Somayajulu ha->response_ring = NULL; 1908afaf5a2dSDavid Somayajulu ha->response_dma = 0; 1909afaf5a2dSDavid Somayajulu ha->shadow_regs = NULL; 1910afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = 0; 1911afaf5a2dSDavid Somayajulu 1912afaf5a2dSDavid Somayajulu /* Free srb pool. */ 1913afaf5a2dSDavid Somayajulu if (ha->srb_mempool) 1914afaf5a2dSDavid Somayajulu mempool_destroy(ha->srb_mempool); 1915afaf5a2dSDavid Somayajulu 1916afaf5a2dSDavid Somayajulu ha->srb_mempool = NULL; 1917afaf5a2dSDavid Somayajulu 1918b3a271a9SManish Rangankar if (ha->chap_dma_pool) 1919b3a271a9SManish Rangankar dma_pool_destroy(ha->chap_dma_pool); 1920b3a271a9SManish Rangankar 19214549415aSLalit Chandivade if (ha->chap_list) 19224549415aSLalit Chandivade vfree(ha->chap_list); 19234549415aSLalit Chandivade ha->chap_list = NULL; 19244549415aSLalit Chandivade 192513483730SMike Christie if (ha->fw_ddb_dma_pool) 192613483730SMike Christie dma_pool_destroy(ha->fw_ddb_dma_pool); 192713483730SMike Christie 1928afaf5a2dSDavid Somayajulu /* release io space registers */ 1929f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 1930f4f5df23SVikas Chaudhary if (ha->nx_pcibase) 1931f4f5df23SVikas Chaudhary iounmap( 1932f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)ha->nx_pcibase); 1933f4f5df23SVikas Chaudhary } else if (ha->reg) 1934afaf5a2dSDavid Somayajulu iounmap(ha->reg); 1935afaf5a2dSDavid Somayajulu pci_release_regions(ha->pdev); 1936afaf5a2dSDavid Somayajulu } 1937afaf5a2dSDavid Somayajulu 1938afaf5a2dSDavid Somayajulu /** 1939afaf5a2dSDavid Somayajulu * qla4xxx_mem_alloc - allocates memory for use by adapter. 1940afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 1941afaf5a2dSDavid Somayajulu * 1942afaf5a2dSDavid Somayajulu * Allocates DMA memory for request and response queues. Also allocates memory 1943afaf5a2dSDavid Somayajulu * for srbs. 1944afaf5a2dSDavid Somayajulu **/ 1945afaf5a2dSDavid Somayajulu static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) 1946afaf5a2dSDavid Somayajulu { 1947afaf5a2dSDavid Somayajulu unsigned long align; 1948afaf5a2dSDavid Somayajulu 1949afaf5a2dSDavid Somayajulu /* Allocate contiguous block of DMA memory for queues. */ 1950afaf5a2dSDavid Somayajulu ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1951afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + 1952afaf5a2dSDavid Somayajulu sizeof(struct shadow_regs) + 1953afaf5a2dSDavid Somayajulu MEM_ALIGN_VALUE + 1954afaf5a2dSDavid Somayajulu (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); 1955afaf5a2dSDavid Somayajulu ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len, 1956afaf5a2dSDavid Somayajulu &ha->queues_dma, GFP_KERNEL); 1957afaf5a2dSDavid Somayajulu if (ha->queues == NULL) { 1958c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1959afaf5a2dSDavid Somayajulu "Memory Allocation failed - queues.\n"); 1960afaf5a2dSDavid Somayajulu 1961afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1962afaf5a2dSDavid Somayajulu } 1963afaf5a2dSDavid Somayajulu memset(ha->queues, 0, ha->queues_len); 1964afaf5a2dSDavid Somayajulu 1965afaf5a2dSDavid Somayajulu /* 1966afaf5a2dSDavid Somayajulu * As per RISC alignment requirements -- the bus-address must be a 1967afaf5a2dSDavid Somayajulu * multiple of the request-ring size (in bytes). 1968afaf5a2dSDavid Somayajulu */ 1969afaf5a2dSDavid Somayajulu align = 0; 1970afaf5a2dSDavid Somayajulu if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1)) 1971afaf5a2dSDavid Somayajulu align = MEM_ALIGN_VALUE - ((unsigned long)ha->queues_dma & 1972afaf5a2dSDavid Somayajulu (MEM_ALIGN_VALUE - 1)); 1973afaf5a2dSDavid Somayajulu 1974afaf5a2dSDavid Somayajulu /* Update request and response queue pointers. */ 1975afaf5a2dSDavid Somayajulu ha->request_dma = ha->queues_dma + align; 1976afaf5a2dSDavid Somayajulu ha->request_ring = (struct queue_entry *) (ha->queues + align); 1977afaf5a2dSDavid Somayajulu ha->response_dma = ha->queues_dma + align + 1978afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE); 1979afaf5a2dSDavid Somayajulu ha->response_ring = (struct queue_entry *) (ha->queues + align + 1980afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1981afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1982afaf5a2dSDavid Somayajulu ha->shadow_regs_dma = ha->queues_dma + align + 1983afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) + 1984afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE); 1985afaf5a2dSDavid Somayajulu ha->shadow_regs = (struct shadow_regs *) (ha->queues + align + 1986afaf5a2dSDavid Somayajulu (REQUEST_QUEUE_DEPTH * 1987afaf5a2dSDavid Somayajulu QUEUE_SIZE) + 1988afaf5a2dSDavid Somayajulu (RESPONSE_QUEUE_DEPTH * 1989afaf5a2dSDavid Somayajulu QUEUE_SIZE)); 1990afaf5a2dSDavid Somayajulu 1991afaf5a2dSDavid Somayajulu /* Allocate memory for srb pool. */ 1992afaf5a2dSDavid Somayajulu ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab, 1993afaf5a2dSDavid Somayajulu mempool_free_slab, srb_cachep); 1994afaf5a2dSDavid Somayajulu if (ha->srb_mempool == NULL) { 1995c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 1996afaf5a2dSDavid Somayajulu "Memory Allocation failed - SRB Pool.\n"); 1997afaf5a2dSDavid Somayajulu 1998afaf5a2dSDavid Somayajulu goto mem_alloc_error_exit; 1999afaf5a2dSDavid Somayajulu } 2000afaf5a2dSDavid Somayajulu 2001b3a271a9SManish Rangankar ha->chap_dma_pool = dma_pool_create("ql4_chap", &ha->pdev->dev, 2002b3a271a9SManish Rangankar CHAP_DMA_BLOCK_SIZE, 8, 0); 2003b3a271a9SManish Rangankar 2004b3a271a9SManish Rangankar if (ha->chap_dma_pool == NULL) { 2005b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 2006b3a271a9SManish Rangankar "%s: chap_dma_pool allocation failed..\n", __func__); 2007b3a271a9SManish Rangankar goto mem_alloc_error_exit; 2008b3a271a9SManish Rangankar } 2009b3a271a9SManish Rangankar 201013483730SMike Christie ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev, 201113483730SMike Christie DDB_DMA_BLOCK_SIZE, 8, 0); 201213483730SMike Christie 201313483730SMike Christie if (ha->fw_ddb_dma_pool == NULL) { 201413483730SMike Christie ql4_printk(KERN_WARNING, ha, 201513483730SMike Christie "%s: fw_ddb_dma_pool allocation failed..\n", 201613483730SMike Christie __func__); 201713483730SMike Christie goto mem_alloc_error_exit; 201813483730SMike Christie } 201913483730SMike Christie 2020afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 2021afaf5a2dSDavid Somayajulu 2022afaf5a2dSDavid Somayajulu mem_alloc_error_exit: 2023afaf5a2dSDavid Somayajulu qla4xxx_mem_free(ha); 2024afaf5a2dSDavid Somayajulu return QLA_ERROR; 2025afaf5a2dSDavid Somayajulu } 2026afaf5a2dSDavid Somayajulu 2027afaf5a2dSDavid Somayajulu /** 20284f77083eSMike Hernandez * qla4_8xxx_check_temp - Check the ISP82XX temperature. 20294f77083eSMike Hernandez * @ha: adapter block pointer. 20304f77083eSMike Hernandez * 20314f77083eSMike Hernandez * Note: The caller should not hold the idc lock. 20324f77083eSMike Hernandez **/ 20334f77083eSMike Hernandez static int qla4_8xxx_check_temp(struct scsi_qla_host *ha) 20344f77083eSMike Hernandez { 20354f77083eSMike Hernandez uint32_t temp, temp_state, temp_val; 20364f77083eSMike Hernandez int status = QLA_SUCCESS; 20374f77083eSMike Hernandez 20384f77083eSMike Hernandez temp = qla4_8xxx_rd_32(ha, CRB_TEMP_STATE); 20394f77083eSMike Hernandez 20404f77083eSMike Hernandez temp_state = qla82xx_get_temp_state(temp); 20414f77083eSMike Hernandez temp_val = qla82xx_get_temp_val(temp); 20424f77083eSMike Hernandez 20434f77083eSMike Hernandez if (temp_state == QLA82XX_TEMP_PANIC) { 20444f77083eSMike Hernandez ql4_printk(KERN_WARNING, ha, "Device temperature %d degrees C" 20454f77083eSMike Hernandez " exceeds maximum allowed. Hardware has been shut" 20464f77083eSMike Hernandez " down.\n", temp_val); 20474f77083eSMike Hernandez status = QLA_ERROR; 20484f77083eSMike Hernandez } else if (temp_state == QLA82XX_TEMP_WARN) { 20494f77083eSMike Hernandez if (ha->temperature == QLA82XX_TEMP_NORMAL) 20504f77083eSMike Hernandez ql4_printk(KERN_WARNING, ha, "Device temperature %d" 20514f77083eSMike Hernandez " degrees C exceeds operating range." 20524f77083eSMike Hernandez " Immediate action needed.\n", temp_val); 20534f77083eSMike Hernandez } else { 20544f77083eSMike Hernandez if (ha->temperature == QLA82XX_TEMP_WARN) 20554f77083eSMike Hernandez ql4_printk(KERN_INFO, ha, "Device temperature is" 20564f77083eSMike Hernandez " now %d degrees C in normal range.\n", 20574f77083eSMike Hernandez temp_val); 20584f77083eSMike Hernandez } 20594f77083eSMike Hernandez ha->temperature = temp_state; 20604f77083eSMike Hernandez return status; 20614f77083eSMike Hernandez } 20624f77083eSMike Hernandez 20634f77083eSMike Hernandez /** 2064f4f5df23SVikas Chaudhary * qla4_8xxx_check_fw_alive - Check firmware health 2065f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 2066f4f5df23SVikas Chaudhary * 2067f4f5df23SVikas Chaudhary * Context: Interrupt 2068f4f5df23SVikas Chaudhary **/ 20699ee91a38SShyam Sunder static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha) 2070f4f5df23SVikas Chaudhary { 20719ee91a38SShyam Sunder uint32_t fw_heartbeat_counter; 20729ee91a38SShyam Sunder int status = QLA_SUCCESS; 2073f4f5df23SVikas Chaudhary 2074f4f5df23SVikas Chaudhary fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); 20752232be0dSLalit Chandivade /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ 20762232be0dSLalit Chandivade if (fw_heartbeat_counter == 0xffffffff) { 20772232be0dSLalit Chandivade DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen " 20782232be0dSLalit Chandivade "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", 20792232be0dSLalit Chandivade ha->host_no, __func__)); 20809ee91a38SShyam Sunder return status; 20812232be0dSLalit Chandivade } 2082f4f5df23SVikas Chaudhary 2083f4f5df23SVikas Chaudhary if (ha->fw_heartbeat_counter == fw_heartbeat_counter) { 2084f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat++; 2085f4f5df23SVikas Chaudhary /* FW not alive after 2 seconds */ 2086f4f5df23SVikas Chaudhary if (ha->seconds_since_last_heartbeat == 2) { 2087f4f5df23SVikas Chaudhary ha->seconds_since_last_heartbeat = 0; 208868d92ebfSVikas Chaudhary 208968d92ebfSVikas Chaudhary ql4_printk(KERN_INFO, ha, 209068d92ebfSVikas Chaudhary "scsi(%ld): %s, Dumping hw/fw registers:\n " 209168d92ebfSVikas Chaudhary " PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2:" 209268d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:" 209368d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:" 209468d92ebfSVikas Chaudhary " 0x%x,\n PEG_NET_4_PC: 0x%x\n", 20959ee91a38SShyam Sunder ha->host_no, __func__, 20969ee91a38SShyam Sunder qla4_8xxx_rd_32(ha, 20979ee91a38SShyam Sunder QLA82XX_PEG_HALT_STATUS1), 209868d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, 209968d92ebfSVikas Chaudhary QLA82XX_PEG_HALT_STATUS2), 210068d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 + 210168d92ebfSVikas Chaudhary 0x3c), 210268d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_1 + 210368d92ebfSVikas Chaudhary 0x3c), 210468d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_2 + 210568d92ebfSVikas Chaudhary 0x3c), 210668d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_3 + 210768d92ebfSVikas Chaudhary 0x3c), 210868d92ebfSVikas Chaudhary qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 + 210968d92ebfSVikas Chaudhary 0x3c)); 21109ee91a38SShyam Sunder status = QLA_ERROR; 2111f4f5df23SVikas Chaudhary } 211299457d75SLalit Chandivade } else 211399457d75SLalit Chandivade ha->seconds_since_last_heartbeat = 0; 211499457d75SLalit Chandivade 2115f4f5df23SVikas Chaudhary ha->fw_heartbeat_counter = fw_heartbeat_counter; 21169ee91a38SShyam Sunder return status; 2117f4f5df23SVikas Chaudhary } 2118f4f5df23SVikas Chaudhary 2119f4f5df23SVikas Chaudhary /** 2120f4f5df23SVikas Chaudhary * qla4_8xxx_watchdog - Poll dev state 2121f4f5df23SVikas Chaudhary * @ha: Pointer to host adapter structure. 2122f4f5df23SVikas Chaudhary * 2123f4f5df23SVikas Chaudhary * Context: Interrupt 2124f4f5df23SVikas Chaudhary **/ 2125f4f5df23SVikas Chaudhary void qla4_8xxx_watchdog(struct scsi_qla_host *ha) 2126f4f5df23SVikas Chaudhary { 21279ee91a38SShyam Sunder uint32_t dev_state, halt_status; 2128f4f5df23SVikas Chaudhary 2129f4f5df23SVikas Chaudhary /* don't poll if reset is going on */ 2130d56a1f7bSLalit Chandivade if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) || 2131d56a1f7bSLalit Chandivade test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2132977f46a4SVikas Chaudhary test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) { 21339ee91a38SShyam Sunder dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 21344f77083eSMike Hernandez 21354f77083eSMike Hernandez if (qla4_8xxx_check_temp(ha)) { 2136e6bd0ebdSGiridhar Malavali ql4_printk(KERN_INFO, ha, "disabling pause" 2137e6bd0ebdSGiridhar Malavali " transmit on port 0 & 1.\n"); 2138e6bd0ebdSGiridhar Malavali qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2139e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P0 | 2140e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P1); 21414f77083eSMike Hernandez set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags); 21424f77083eSMike Hernandez qla4xxx_wake_dpc(ha); 21434f77083eSMike Hernandez } else if (dev_state == QLA82XX_DEV_NEED_RESET && 2144f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 21453930b8c1SVikas Chaudhary if (!ql4xdontresethba) { 21463930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: " 21473930b8c1SVikas Chaudhary "NEED RESET!\n", __func__); 2148f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2149f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 21503930b8c1SVikas Chaudhary } 2151f4f5df23SVikas Chaudhary } else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT && 2152f4f5df23SVikas Chaudhary !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 21533930b8c1SVikas Chaudhary ql4_printk(KERN_INFO, ha, "%s: HW State: NEED QUIES!\n", 21543930b8c1SVikas Chaudhary __func__); 2155f4f5df23SVikas Chaudhary set_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags); 2156f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 2157f4f5df23SVikas Chaudhary } else { 2158f4f5df23SVikas Chaudhary /* Check firmware health */ 21599ee91a38SShyam Sunder if (qla4_8xxx_check_fw_alive(ha)) { 2160e6bd0ebdSGiridhar Malavali ql4_printk(KERN_INFO, ha, "disabling pause" 2161e6bd0ebdSGiridhar Malavali " transmit on port 0 & 1.\n"); 2162e6bd0ebdSGiridhar Malavali qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x98, 2163e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P0 | 2164e6bd0ebdSGiridhar Malavali CRB_NIU_XG_PAUSE_CTL_P1); 21659ee91a38SShyam Sunder halt_status = qla4_8xxx_rd_32(ha, 21669ee91a38SShyam Sunder QLA82XX_PEG_HALT_STATUS1); 21679ee91a38SShyam Sunder 2168527c8b2eSNilesh Javali if (LSW(MSB(halt_status)) == 0x67) 2169527c8b2eSNilesh Javali ql4_printk(KERN_ERR, ha, "%s:" 2170527c8b2eSNilesh Javali " Firmware aborted with" 2171527c8b2eSNilesh Javali " error code 0x00006700." 2172527c8b2eSNilesh Javali " Device is being reset\n", 2173527c8b2eSNilesh Javali __func__); 2174527c8b2eSNilesh Javali 21759ee91a38SShyam Sunder /* Since we cannot change dev_state in interrupt 21769ee91a38SShyam Sunder * context, set appropriate DPC flag then wakeup 21779ee91a38SShyam Sunder * DPC */ 21789ee91a38SShyam Sunder if (halt_status & HALT_STATUS_UNRECOVERABLE) 21799ee91a38SShyam Sunder set_bit(DPC_HA_UNRECOVERABLE, 21809ee91a38SShyam Sunder &ha->dpc_flags); 21819ee91a38SShyam Sunder else { 21829ee91a38SShyam Sunder ql4_printk(KERN_INFO, ha, "%s: detect " 21839ee91a38SShyam Sunder "abort needed!\n", __func__); 21849ee91a38SShyam Sunder set_bit(DPC_RESET_HA, &ha->dpc_flags); 21859ee91a38SShyam Sunder } 21869ee91a38SShyam Sunder qla4xxx_mailbox_premature_completion(ha); 21879ee91a38SShyam Sunder qla4xxx_wake_dpc(ha); 21889ee91a38SShyam Sunder } 2189f4f5df23SVikas Chaudhary } 2190f4f5df23SVikas Chaudhary } 2191f4f5df23SVikas Chaudhary } 2192f4f5df23SVikas Chaudhary 21934a4bc2e9SLalit Chandivade static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 219413483730SMike Christie { 219513483730SMike Christie struct iscsi_session *sess; 219613483730SMike Christie struct ddb_entry *ddb_entry; 219713483730SMike Christie struct scsi_qla_host *ha; 219813483730SMike Christie 219913483730SMike Christie sess = cls_sess->dd_data; 220013483730SMike Christie ddb_entry = sess->dd_data; 220113483730SMike Christie ha = ddb_entry->ha; 220213483730SMike Christie 220313483730SMike Christie if (!(ddb_entry->ddb_type == FLASH_DDB)) 220413483730SMike Christie return; 220513483730SMike Christie 220613483730SMike Christie if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) && 220713483730SMike Christie !iscsi_is_session_online(cls_sess)) { 220813483730SMike Christie if (atomic_read(&ddb_entry->retry_relogin_timer) != 220913483730SMike Christie INVALID_ENTRY) { 221013483730SMike Christie if (atomic_read(&ddb_entry->retry_relogin_timer) == 221113483730SMike Christie 0) { 221213483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, 221313483730SMike Christie INVALID_ENTRY); 221413483730SMike Christie set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 221513483730SMike Christie set_bit(DF_RELOGIN, &ddb_entry->flags); 221613483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 221713483730SMike Christie "%s: index [%d] login device\n", 221813483730SMike Christie __func__, ddb_entry->fw_ddb_index)); 221913483730SMike Christie } else 222013483730SMike Christie atomic_dec(&ddb_entry->retry_relogin_timer); 222113483730SMike Christie } 222213483730SMike Christie } 222313483730SMike Christie 222413483730SMike Christie /* Wait for relogin to timeout */ 222513483730SMike Christie if (atomic_read(&ddb_entry->relogin_timer) && 222613483730SMike Christie (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) { 222713483730SMike Christie /* 222813483730SMike Christie * If the relogin times out and the device is 222913483730SMike Christie * still NOT ONLINE then try and relogin again. 223013483730SMike Christie */ 223113483730SMike Christie if (!iscsi_is_session_online(cls_sess)) { 223213483730SMike Christie /* Reset retry relogin timer */ 223313483730SMike Christie atomic_inc(&ddb_entry->relogin_retry_count); 223413483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 223513483730SMike Christie "%s: index[%d] relogin timed out-retrying" 223613483730SMike Christie " relogin (%d), retry (%d)\n", __func__, 223713483730SMike Christie ddb_entry->fw_ddb_index, 223813483730SMike Christie atomic_read(&ddb_entry->relogin_retry_count), 223913483730SMike Christie ddb_entry->default_time2wait + 4)); 224013483730SMike Christie set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 224113483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, 224213483730SMike Christie ddb_entry->default_time2wait + 4); 224313483730SMike Christie } 224413483730SMike Christie } 224513483730SMike Christie } 224613483730SMike Christie 2247f4f5df23SVikas Chaudhary /** 2248afaf5a2dSDavid Somayajulu * qla4xxx_timer - checks every second for work to do. 2249afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2250afaf5a2dSDavid Somayajulu **/ 2251afaf5a2dSDavid Somayajulu static void qla4xxx_timer(struct scsi_qla_host *ha) 2252afaf5a2dSDavid Somayajulu { 2253afaf5a2dSDavid Somayajulu int start_dpc = 0; 22542232be0dSLalit Chandivade uint16_t w; 22552232be0dSLalit Chandivade 225613483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb); 225713483730SMike Christie 22582232be0dSLalit Chandivade /* If we are in the middle of AER/EEH processing 22592232be0dSLalit Chandivade * skip any processing and reschedule the timer 22602232be0dSLalit Chandivade */ 22612232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 22622232be0dSLalit Chandivade mod_timer(&ha->timer, jiffies + HZ); 22632232be0dSLalit Chandivade return; 22642232be0dSLalit Chandivade } 22652232be0dSLalit Chandivade 22662232be0dSLalit Chandivade /* Hardware read to trigger an EEH error during mailbox waits. */ 22672232be0dSLalit Chandivade if (!pci_channel_offline(ha->pdev)) 22682232be0dSLalit Chandivade pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w); 2269afaf5a2dSDavid Somayajulu 2270f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2271f4f5df23SVikas Chaudhary qla4_8xxx_watchdog(ha); 2272f4f5df23SVikas Chaudhary } 2273f4f5df23SVikas Chaudhary 2274f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 2275afaf5a2dSDavid Somayajulu /* Check for heartbeat interval. */ 2276afaf5a2dSDavid Somayajulu if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE && 2277afaf5a2dSDavid Somayajulu ha->heartbeat_interval != 0) { 2278afaf5a2dSDavid Somayajulu ha->seconds_since_last_heartbeat++; 2279afaf5a2dSDavid Somayajulu if (ha->seconds_since_last_heartbeat > 2280afaf5a2dSDavid Somayajulu ha->heartbeat_interval + 2) 2281afaf5a2dSDavid Somayajulu set_bit(DPC_RESET_HA, &ha->dpc_flags); 2282afaf5a2dSDavid Somayajulu } 2283f4f5df23SVikas Chaudhary } 2284afaf5a2dSDavid Somayajulu 2285afaf5a2dSDavid Somayajulu /* Wakeup the dpc routine for this adapter, if needed. */ 22861b46807eSLalit Chandivade if (start_dpc || 2287afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2288afaf5a2dSDavid Somayajulu test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) || 2289afaf5a2dSDavid Somayajulu test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) || 2290f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2291afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2292afaf5a2dSDavid Somayajulu test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) || 2293065aa1b4SVikas Chaudhary test_bit(DPC_LINK_CHANGED, &ha->dpc_flags) || 2294f4f5df23SVikas Chaudhary test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags) || 2295f4f5df23SVikas Chaudhary test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags) || 22961b46807eSLalit Chandivade test_bit(DPC_AEN, &ha->dpc_flags)) { 2297afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: scheduling dpc routine" 2298afaf5a2dSDavid Somayajulu " - dpc flags = 0x%lx\n", 2299afaf5a2dSDavid Somayajulu ha->host_no, __func__, ha->dpc_flags)); 2300f4f5df23SVikas Chaudhary qla4xxx_wake_dpc(ha); 2301afaf5a2dSDavid Somayajulu } 2302afaf5a2dSDavid Somayajulu 2303afaf5a2dSDavid Somayajulu /* Reschedule timer thread to call us back in one second */ 2304afaf5a2dSDavid Somayajulu mod_timer(&ha->timer, jiffies + HZ); 2305afaf5a2dSDavid Somayajulu 2306afaf5a2dSDavid Somayajulu DEBUG2(ha->seconds_since_last_intr++); 2307afaf5a2dSDavid Somayajulu } 2308afaf5a2dSDavid Somayajulu 2309afaf5a2dSDavid Somayajulu /** 2310afaf5a2dSDavid Somayajulu * qla4xxx_cmd_wait - waits for all outstanding commands to complete 2311afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2312afaf5a2dSDavid Somayajulu * 2313afaf5a2dSDavid Somayajulu * This routine stalls the driver until all outstanding commands are returned. 2314afaf5a2dSDavid Somayajulu * Caller must release the Hardware Lock prior to calling this routine. 2315afaf5a2dSDavid Somayajulu **/ 2316afaf5a2dSDavid Somayajulu static int qla4xxx_cmd_wait(struct scsi_qla_host *ha) 2317afaf5a2dSDavid Somayajulu { 2318afaf5a2dSDavid Somayajulu uint32_t index = 0; 2319afaf5a2dSDavid Somayajulu unsigned long flags; 2320afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 2321afaf5a2dSDavid Somayajulu 2322f4f5df23SVikas Chaudhary unsigned long wtime = jiffies + (WAIT_CMD_TOV * HZ); 2323f4f5df23SVikas Chaudhary 2324f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "Wait up to %d seconds for cmds to " 2325f4f5df23SVikas Chaudhary "complete\n", WAIT_CMD_TOV)); 2326f4f5df23SVikas Chaudhary 2327f4f5df23SVikas Chaudhary while (!time_after_eq(jiffies, wtime)) { 2328afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2329afaf5a2dSDavid Somayajulu /* Find a command that hasn't completed. */ 2330afaf5a2dSDavid Somayajulu for (index = 0; index < ha->host->can_queue; index++) { 2331afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, index); 2332a1e0063dSMike Christie /* 2333a1e0063dSMike Christie * We cannot just check if the index is valid, 2334a1e0063dSMike Christie * becase if we are run from the scsi eh, then 2335a1e0063dSMike Christie * the scsi/block layer is going to prevent 2336a1e0063dSMike Christie * the tag from being released. 2337a1e0063dSMike Christie */ 2338a1e0063dSMike Christie if (cmd != NULL && CMD_SP(cmd)) 2339afaf5a2dSDavid Somayajulu break; 2340afaf5a2dSDavid Somayajulu } 2341afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2342afaf5a2dSDavid Somayajulu 2343afaf5a2dSDavid Somayajulu /* If No Commands are pending, wait is complete */ 2344f4f5df23SVikas Chaudhary if (index == ha->host->can_queue) 2345f4f5df23SVikas Chaudhary return QLA_SUCCESS; 2346afaf5a2dSDavid Somayajulu 2347afaf5a2dSDavid Somayajulu msleep(1000); 2348afaf5a2dSDavid Somayajulu } 2349f4f5df23SVikas Chaudhary /* If we timed out on waiting for commands to come back 2350f4f5df23SVikas Chaudhary * return ERROR. */ 2351f4f5df23SVikas Chaudhary return QLA_ERROR; 2352afaf5a2dSDavid Somayajulu } 2353afaf5a2dSDavid Somayajulu 2354f4f5df23SVikas Chaudhary int qla4xxx_hw_reset(struct scsi_qla_host *ha) 2355afaf5a2dSDavid Somayajulu { 2356afaf5a2dSDavid Somayajulu uint32_t ctrl_status; 2357477ffb9dSDavid C Somayajulu unsigned long flags = 0; 2358477ffb9dSDavid C Somayajulu 2359477ffb9dSDavid C Somayajulu DEBUG2(printk(KERN_ERR "scsi%ld: %s\n", ha->host_no, __func__)); 2360afaf5a2dSDavid Somayajulu 2361f4f5df23SVikas Chaudhary if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS) 2362f4f5df23SVikas Chaudhary return QLA_ERROR; 2363f4f5df23SVikas Chaudhary 2364afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2365afaf5a2dSDavid Somayajulu 2366afaf5a2dSDavid Somayajulu /* 2367afaf5a2dSDavid Somayajulu * If the SCSI Reset Interrupt bit is set, clear it. 2368afaf5a2dSDavid Somayajulu * Otherwise, the Soft Reset won't work. 2369afaf5a2dSDavid Somayajulu */ 2370afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2371afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) 2372afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2373afaf5a2dSDavid Somayajulu 2374afaf5a2dSDavid Somayajulu /* Issue Soft Reset */ 2375afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SOFT_RESET), &ha->reg->ctrl_status); 2376afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2377afaf5a2dSDavid Somayajulu 2378afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2379f4f5df23SVikas Chaudhary return QLA_SUCCESS; 2380477ffb9dSDavid C Somayajulu } 2381477ffb9dSDavid C Somayajulu 2382477ffb9dSDavid C Somayajulu /** 2383477ffb9dSDavid C Somayajulu * qla4xxx_soft_reset - performs soft reset. 2384477ffb9dSDavid C Somayajulu * @ha: Pointer to host adapter structure. 2385477ffb9dSDavid C Somayajulu **/ 2386477ffb9dSDavid C Somayajulu int qla4xxx_soft_reset(struct scsi_qla_host *ha) 2387477ffb9dSDavid C Somayajulu { 2388477ffb9dSDavid C Somayajulu uint32_t max_wait_time; 2389477ffb9dSDavid C Somayajulu unsigned long flags = 0; 2390f931c534SVikas Chaudhary int status; 2391477ffb9dSDavid C Somayajulu uint32_t ctrl_status; 2392477ffb9dSDavid C Somayajulu 2393f931c534SVikas Chaudhary status = qla4xxx_hw_reset(ha); 2394f931c534SVikas Chaudhary if (status != QLA_SUCCESS) 2395f931c534SVikas Chaudhary return status; 2396afaf5a2dSDavid Somayajulu 2397f931c534SVikas Chaudhary status = QLA_ERROR; 2398afaf5a2dSDavid Somayajulu /* Wait until the Network Reset Intr bit is cleared */ 2399afaf5a2dSDavid Somayajulu max_wait_time = RESET_INTR_TOV; 2400afaf5a2dSDavid Somayajulu do { 2401afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2402afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2403afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2404afaf5a2dSDavid Somayajulu 2405afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) == 0) 2406afaf5a2dSDavid Somayajulu break; 2407afaf5a2dSDavid Somayajulu 2408afaf5a2dSDavid Somayajulu msleep(1000); 2409afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2410afaf5a2dSDavid Somayajulu 2411afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_NET_RESET_INTR) != 0) { 2412afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_WARNING 2413afaf5a2dSDavid Somayajulu "scsi%ld: Network Reset Intr not cleared by " 2414afaf5a2dSDavid Somayajulu "Network function, clearing it now!\n", 2415afaf5a2dSDavid Somayajulu ha->host_no)); 2416afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2417afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_NET_RESET_INTR), &ha->reg->ctrl_status); 2418afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2419afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2420afaf5a2dSDavid Somayajulu } 2421afaf5a2dSDavid Somayajulu 2422afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 2423afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 2424afaf5a2dSDavid Somayajulu do { 2425afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2426afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2427afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2428afaf5a2dSDavid Somayajulu 2429afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SOFT_RESET) == 0) { 2430afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2431afaf5a2dSDavid Somayajulu break; 2432afaf5a2dSDavid Somayajulu } 2433afaf5a2dSDavid Somayajulu 2434afaf5a2dSDavid Somayajulu msleep(1000); 2435afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2436afaf5a2dSDavid Somayajulu 2437afaf5a2dSDavid Somayajulu /* 2438afaf5a2dSDavid Somayajulu * Also, make sure that the SCSI Reset Interrupt bit has been cleared 2439afaf5a2dSDavid Somayajulu * after the soft reset has taken place. 2440afaf5a2dSDavid Somayajulu */ 2441afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2442afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2443afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) { 2444afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_SCSI_RESET_INTR), &ha->reg->ctrl_status); 2445afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2446afaf5a2dSDavid Somayajulu } 2447afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2448afaf5a2dSDavid Somayajulu 2449afaf5a2dSDavid Somayajulu /* If soft reset fails then most probably the bios on other 2450afaf5a2dSDavid Somayajulu * function is also enabled. 2451afaf5a2dSDavid Somayajulu * Since the initialization is sequential the other fn 2452afaf5a2dSDavid Somayajulu * wont be able to acknowledge the soft reset. 2453afaf5a2dSDavid Somayajulu * Issue a force soft reset to workaround this scenario. 2454afaf5a2dSDavid Somayajulu */ 2455afaf5a2dSDavid Somayajulu if (max_wait_time == 0) { 2456afaf5a2dSDavid Somayajulu /* Issue Force Soft Reset */ 2457afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2458afaf5a2dSDavid Somayajulu writel(set_rmask(CSR_FORCE_SOFT_RESET), &ha->reg->ctrl_status); 2459afaf5a2dSDavid Somayajulu readl(&ha->reg->ctrl_status); 2460afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2461afaf5a2dSDavid Somayajulu /* Wait until the firmware tells us the Soft Reset is done */ 2462afaf5a2dSDavid Somayajulu max_wait_time = SOFT_RESET_TOV; 2463afaf5a2dSDavid Somayajulu do { 2464afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2465afaf5a2dSDavid Somayajulu ctrl_status = readw(&ha->reg->ctrl_status); 2466afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2467afaf5a2dSDavid Somayajulu 2468afaf5a2dSDavid Somayajulu if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) { 2469afaf5a2dSDavid Somayajulu status = QLA_SUCCESS; 2470afaf5a2dSDavid Somayajulu break; 2471afaf5a2dSDavid Somayajulu } 2472afaf5a2dSDavid Somayajulu 2473afaf5a2dSDavid Somayajulu msleep(1000); 2474afaf5a2dSDavid Somayajulu } while ((--max_wait_time)); 2475afaf5a2dSDavid Somayajulu } 2476afaf5a2dSDavid Somayajulu 2477afaf5a2dSDavid Somayajulu return status; 2478afaf5a2dSDavid Somayajulu } 2479afaf5a2dSDavid Somayajulu 2480afaf5a2dSDavid Somayajulu /** 2481f4f5df23SVikas Chaudhary * qla4xxx_abort_active_cmds - returns all outstanding i/o requests to O.S. 2482afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2483f4f5df23SVikas Chaudhary * @res: returned scsi status 2484afaf5a2dSDavid Somayajulu * 2485afaf5a2dSDavid Somayajulu * This routine is called just prior to a HARD RESET to return all 2486afaf5a2dSDavid Somayajulu * outstanding commands back to the Operating System. 2487afaf5a2dSDavid Somayajulu * Caller should make sure that the following locks are released 2488afaf5a2dSDavid Somayajulu * before this calling routine: Hardware lock, and io_request_lock. 2489afaf5a2dSDavid Somayajulu **/ 2490f4f5df23SVikas Chaudhary static void qla4xxx_abort_active_cmds(struct scsi_qla_host *ha, int res) 2491afaf5a2dSDavid Somayajulu { 2492afaf5a2dSDavid Somayajulu struct srb *srb; 2493afaf5a2dSDavid Somayajulu int i; 2494afaf5a2dSDavid Somayajulu unsigned long flags; 2495afaf5a2dSDavid Somayajulu 2496afaf5a2dSDavid Somayajulu spin_lock_irqsave(&ha->hardware_lock, flags); 2497afaf5a2dSDavid Somayajulu for (i = 0; i < ha->host->can_queue; i++) { 2498afaf5a2dSDavid Somayajulu srb = qla4xxx_del_from_active_array(ha, i); 2499afaf5a2dSDavid Somayajulu if (srb != NULL) { 2500f4f5df23SVikas Chaudhary srb->cmd->result = res; 250109a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 2502afaf5a2dSDavid Somayajulu } 2503afaf5a2dSDavid Somayajulu } 2504afaf5a2dSDavid Somayajulu spin_unlock_irqrestore(&ha->hardware_lock, flags); 2505afaf5a2dSDavid Somayajulu } 2506afaf5a2dSDavid Somayajulu 2507f4f5df23SVikas Chaudhary void qla4xxx_dead_adapter_cleanup(struct scsi_qla_host *ha) 2508f4f5df23SVikas Chaudhary { 2509f4f5df23SVikas Chaudhary clear_bit(AF_ONLINE, &ha->flags); 2510f4f5df23SVikas Chaudhary 2511f4f5df23SVikas Chaudhary /* Disable the board */ 2512f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Disabling the board\n"); 2513f4f5df23SVikas Chaudhary 2514f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2515f4f5df23SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2516f4f5df23SVikas Chaudhary clear_bit(AF_INIT_DONE, &ha->flags); 2517f4f5df23SVikas Chaudhary } 2518f4f5df23SVikas Chaudhary 2519b3a271a9SManish Rangankar static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session) 2520b3a271a9SManish Rangankar { 2521b3a271a9SManish Rangankar struct iscsi_session *sess; 2522b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2523b3a271a9SManish Rangankar 2524b3a271a9SManish Rangankar sess = cls_session->dd_data; 2525b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2526b3a271a9SManish Rangankar ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED; 252713483730SMike Christie 252813483730SMike Christie if (ddb_entry->ddb_type == FLASH_DDB) 252913483730SMike Christie iscsi_block_session(ddb_entry->sess); 253013483730SMike Christie else 253113483730SMike Christie iscsi_session_failure(cls_session->dd_data, 253213483730SMike Christie ISCSI_ERR_CONN_FAILED); 2533b3a271a9SManish Rangankar } 2534b3a271a9SManish Rangankar 2535afaf5a2dSDavid Somayajulu /** 2536afaf5a2dSDavid Somayajulu * qla4xxx_recover_adapter - recovers adapter after a fatal error 2537afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 2538afaf5a2dSDavid Somayajulu **/ 2539f4f5df23SVikas Chaudhary static int qla4xxx_recover_adapter(struct scsi_qla_host *ha) 2540afaf5a2dSDavid Somayajulu { 2541f4f5df23SVikas Chaudhary int status = QLA_ERROR; 2542f4f5df23SVikas Chaudhary uint8_t reset_chip = 0; 25438e0f3a66SSarang Radke uint32_t dev_state; 25449ee91a38SShyam Sunder unsigned long wait; 2545afaf5a2dSDavid Somayajulu 2546afaf5a2dSDavid Somayajulu /* Stall incoming I/O until we are done */ 2547f4f5df23SVikas Chaudhary scsi_block_requests(ha->host); 2548afaf5a2dSDavid Somayajulu clear_bit(AF_ONLINE, &ha->flags); 2549b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 255050a29aecSMike Christie 2551f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: adapter OFFLINE\n", __func__)); 2552afaf5a2dSDavid Somayajulu 2553f4f5df23SVikas Chaudhary set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2554afaf5a2dSDavid Somayajulu 2555b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 2556b3a271a9SManish Rangankar 2557f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2558f4f5df23SVikas Chaudhary reset_chip = 1; 2559afaf5a2dSDavid Somayajulu 2560f4f5df23SVikas Chaudhary /* For the DPC_RESET_HA_INTR case (ISP-4xxx specific) 2561f4f5df23SVikas Chaudhary * do not reset adapter, jump to initialize_adapter */ 2562f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2563f4f5df23SVikas Chaudhary status = QLA_SUCCESS; 2564f4f5df23SVikas Chaudhary goto recover_ha_init_adapter; 2565afaf5a2dSDavid Somayajulu } 2566afaf5a2dSDavid Somayajulu 2567f4f5df23SVikas Chaudhary /* For the ISP-82xx adapter, issue a stop_firmware if invoked 2568f4f5df23SVikas Chaudhary * from eh_host_reset or ioctl module */ 2569f4f5df23SVikas Chaudhary if (is_qla8022(ha) && !reset_chip && 2570f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags)) { 2571f4f5df23SVikas Chaudhary 2572f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2573f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing stop_firmware...\n", 2574f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2575f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_firmware(ha); 2576f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 25772bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2578f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 2579f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2580f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2581f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2582f4f5df23SVikas Chaudhary } else { 2583f4f5df23SVikas Chaudhary /* If the stop_firmware fails then 2584f4f5df23SVikas Chaudhary * reset the entire chip */ 2585f4f5df23SVikas Chaudhary reset_chip = 1; 2586f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2587f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 2588f4f5df23SVikas Chaudhary } 2589f4f5df23SVikas Chaudhary } 2590f4f5df23SVikas Chaudhary 2591f4f5df23SVikas Chaudhary /* Issue full chip reset if recovering from a catastrophic error, 2592f4f5df23SVikas Chaudhary * or if stop_firmware fails for ISP-82xx. 2593f4f5df23SVikas Chaudhary * This is the default case for ISP-4xxx */ 2594f4f5df23SVikas Chaudhary if (!is_qla8022(ha) || reset_chip) { 25959ee91a38SShyam Sunder if (!is_qla8022(ha)) 25969ee91a38SShyam Sunder goto chip_reset; 25979ee91a38SShyam Sunder 25989ee91a38SShyam Sunder /* Check if 82XX firmware is alive or not 25999ee91a38SShyam Sunder * We may have arrived here from NEED_RESET 26009ee91a38SShyam Sunder * detection only */ 26019ee91a38SShyam Sunder if (test_bit(AF_FW_RECOVERY, &ha->flags)) 26029ee91a38SShyam Sunder goto chip_reset; 26039ee91a38SShyam Sunder 26049ee91a38SShyam Sunder wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ); 26059ee91a38SShyam Sunder while (time_before(jiffies, wait)) { 26069ee91a38SShyam Sunder if (qla4_8xxx_check_fw_alive(ha)) { 26079ee91a38SShyam Sunder qla4xxx_mailbox_premature_completion(ha); 26089ee91a38SShyam Sunder break; 26099ee91a38SShyam Sunder } 26109ee91a38SShyam Sunder 26119ee91a38SShyam Sunder set_current_state(TASK_UNINTERRUPTIBLE); 26129ee91a38SShyam Sunder schedule_timeout(HZ); 26139ee91a38SShyam Sunder } 26149ee91a38SShyam Sunder 26152bd1e2beSNilesh Javali if (!test_bit(AF_FW_RECOVERY, &ha->flags)) 2616f4f5df23SVikas Chaudhary qla4xxx_cmd_wait(ha); 26179ee91a38SShyam Sunder chip_reset: 2618f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2619f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2620f4f5df23SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, 2621f4f5df23SVikas Chaudhary "scsi%ld: %s - Performing chip reset..\n", 2622f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2623f4f5df23SVikas Chaudhary status = ha->isp_ops->reset_chip(ha); 2624f4f5df23SVikas Chaudhary } 2625f4f5df23SVikas Chaudhary 2626f4f5df23SVikas Chaudhary /* Flush any pending ddb changed AENs */ 2627f4f5df23SVikas Chaudhary qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2628f4f5df23SVikas Chaudhary 2629f4f5df23SVikas Chaudhary recover_ha_init_adapter: 2630f4f5df23SVikas Chaudhary /* Upon successful firmware/chip reset, re-initialize the adapter */ 2631f4f5df23SVikas Chaudhary if (status == QLA_SUCCESS) { 2632f4f5df23SVikas Chaudhary /* For ISP-4xxx, force function 1 to always initialize 2633f4f5df23SVikas Chaudhary * before function 3 to prevent both funcions from 2634f4f5df23SVikas Chaudhary * stepping on top of the other */ 2635f4f5df23SVikas Chaudhary if (!is_qla8022(ha) && (ha->mac_index == 3)) 2636f4f5df23SVikas Chaudhary ssleep(6); 2637f4f5df23SVikas Chaudhary 2638f4f5df23SVikas Chaudhary /* NOTE: AF_ONLINE flag set upon successful completion of 2639f4f5df23SVikas Chaudhary * qla4xxx_initialize_adapter */ 264013483730SMike Christie status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 2641f4f5df23SVikas Chaudhary } 2642f4f5df23SVikas Chaudhary 2643f4f5df23SVikas Chaudhary /* Retry failed adapter initialization, if necessary 2644f4f5df23SVikas Chaudhary * Do not retry initialize_adapter for RESET_HA_INTR (ISP-4xxx specific) 2645f4f5df23SVikas Chaudhary * case to prevent ping-pong resets between functions */ 2646f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags) && 2647f4f5df23SVikas Chaudhary !test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2648afaf5a2dSDavid Somayajulu /* Adapter initialization failed, see if we can retry 2649f4f5df23SVikas Chaudhary * resetting the ha. 2650f4f5df23SVikas Chaudhary * Since we don't want to block the DPC for too long 2651f4f5df23SVikas Chaudhary * with multiple resets in the same thread, 2652f4f5df23SVikas Chaudhary * utilize DPC to retry */ 26538e0f3a66SSarang Radke if (is_qla8022(ha)) { 26548e0f3a66SSarang Radke qla4_8xxx_idc_lock(ha); 26558e0f3a66SSarang Radke dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 26568e0f3a66SSarang Radke qla4_8xxx_idc_unlock(ha); 26578e0f3a66SSarang Radke if (dev_state == QLA82XX_DEV_FAILED) { 26588e0f3a66SSarang Radke ql4_printk(KERN_INFO, ha, "%s: don't retry " 26598e0f3a66SSarang Radke "recover adapter. H/W is in Failed " 26608e0f3a66SSarang Radke "state\n", __func__); 26618e0f3a66SSarang Radke qla4xxx_dead_adapter_cleanup(ha); 26628e0f3a66SSarang Radke clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 26638e0f3a66SSarang Radke clear_bit(DPC_RESET_HA, &ha->dpc_flags); 26648e0f3a66SSarang Radke clear_bit(DPC_RESET_HA_FW_CONTEXT, 26658e0f3a66SSarang Radke &ha->dpc_flags); 26668e0f3a66SSarang Radke status = QLA_ERROR; 26678e0f3a66SSarang Radke 26688e0f3a66SSarang Radke goto exit_recover; 26698e0f3a66SSarang Radke } 26708e0f3a66SSarang Radke } 26718e0f3a66SSarang Radke 2672afaf5a2dSDavid Somayajulu if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) { 2673afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES; 2674afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - retrying " 2675afaf5a2dSDavid Somayajulu "(%d) more times\n", ha->host_no, 2676afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2677afaf5a2dSDavid Somayajulu set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2678afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2679afaf5a2dSDavid Somayajulu } else { 2680afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt > 0) { 2681afaf5a2dSDavid Somayajulu /* Schedule another Reset HA--DPC will retry */ 2682afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt--; 2683afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter - " 2684afaf5a2dSDavid Somayajulu "retry remaining %d\n", 2685afaf5a2dSDavid Somayajulu ha->host_no, 2686afaf5a2dSDavid Somayajulu ha->retry_reset_ha_cnt)); 2687afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2688afaf5a2dSDavid Somayajulu } 2689afaf5a2dSDavid Somayajulu 2690afaf5a2dSDavid Somayajulu if (ha->retry_reset_ha_cnt == 0) { 2691afaf5a2dSDavid Somayajulu /* Recover adapter retries have been exhausted. 2692afaf5a2dSDavid Somayajulu * Adapter DEAD */ 2693afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: recover adapter " 2694afaf5a2dSDavid Somayajulu "failed - board disabled\n", 2695afaf5a2dSDavid Somayajulu ha->host_no)); 2696f4f5df23SVikas Chaudhary qla4xxx_dead_adapter_cleanup(ha); 2697afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2698afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2699f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, 2700afaf5a2dSDavid Somayajulu &ha->dpc_flags); 2701afaf5a2dSDavid Somayajulu status = QLA_ERROR; 2702afaf5a2dSDavid Somayajulu } 2703afaf5a2dSDavid Somayajulu } 2704afaf5a2dSDavid Somayajulu } else { 2705afaf5a2dSDavid Somayajulu clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2706f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2707afaf5a2dSDavid Somayajulu clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags); 2708afaf5a2dSDavid Somayajulu } 2709afaf5a2dSDavid Somayajulu 27108e0f3a66SSarang Radke exit_recover: 2711afaf5a2dSDavid Somayajulu ha->adapter_error_count++; 2712afaf5a2dSDavid Somayajulu 2713f4f5df23SVikas Chaudhary if (test_bit(AF_ONLINE, &ha->flags)) 2714f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2715afaf5a2dSDavid Somayajulu 2716f4f5df23SVikas Chaudhary scsi_unblock_requests(ha->host); 2717f4f5df23SVikas Chaudhary 2718f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 2719f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: recover adapter: %s\n", ha->host_no, 272025985edcSLucas De Marchi status == QLA_ERROR ? "FAILED" : "SUCCEEDED")); 2721f4f5df23SVikas Chaudhary 2722afaf5a2dSDavid Somayajulu return status; 2723afaf5a2dSDavid Somayajulu } 2724afaf5a2dSDavid Somayajulu 2725b3a271a9SManish Rangankar static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session) 2726b3a271a9SManish Rangankar { 2727b3a271a9SManish Rangankar struct iscsi_session *sess; 2728b3a271a9SManish Rangankar struct ddb_entry *ddb_entry; 2729b3a271a9SManish Rangankar struct scsi_qla_host *ha; 2730b3a271a9SManish Rangankar 2731b3a271a9SManish Rangankar sess = cls_session->dd_data; 2732b3a271a9SManish Rangankar ddb_entry = sess->dd_data; 2733b3a271a9SManish Rangankar ha = ddb_entry->ha; 2734b3a271a9SManish Rangankar if (!iscsi_is_session_online(cls_session)) { 2735b3a271a9SManish Rangankar if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) { 2736b3a271a9SManish Rangankar ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 2737b3a271a9SManish Rangankar " unblock session\n", ha->host_no, __func__, 2738b3a271a9SManish Rangankar ddb_entry->fw_ddb_index); 2739b3a271a9SManish Rangankar iscsi_unblock_session(ddb_entry->sess); 2740b3a271a9SManish Rangankar } else { 2741b3a271a9SManish Rangankar /* Trigger relogin */ 274213483730SMike Christie if (ddb_entry->ddb_type == FLASH_DDB) { 274313483730SMike Christie if (!test_bit(DF_RELOGIN, &ddb_entry->flags)) 274413483730SMike Christie qla4xxx_arm_relogin_timer(ddb_entry); 274513483730SMike Christie } else 2746b3a271a9SManish Rangankar iscsi_session_failure(cls_session->dd_data, 2747b3a271a9SManish Rangankar ISCSI_ERR_CONN_FAILED); 2748b3a271a9SManish Rangankar } 2749b3a271a9SManish Rangankar } 2750b3a271a9SManish Rangankar } 2751b3a271a9SManish Rangankar 275213483730SMike Christie int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session) 275313483730SMike Christie { 275413483730SMike Christie struct iscsi_session *sess; 275513483730SMike Christie struct ddb_entry *ddb_entry; 275613483730SMike Christie struct scsi_qla_host *ha; 275713483730SMike Christie 275813483730SMike Christie sess = cls_session->dd_data; 275913483730SMike Christie ddb_entry = sess->dd_data; 276013483730SMike Christie ha = ddb_entry->ha; 276113483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 276213483730SMike Christie " unblock session\n", ha->host_no, __func__, 276313483730SMike Christie ddb_entry->fw_ddb_index); 276413483730SMike Christie 276513483730SMike Christie iscsi_unblock_session(ddb_entry->sess); 276613483730SMike Christie 276713483730SMike Christie /* Start scan target */ 276813483730SMike Christie if (test_bit(AF_ONLINE, &ha->flags)) { 276913483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 277013483730SMike Christie " start scan\n", ha->host_no, __func__, 277113483730SMike Christie ddb_entry->fw_ddb_index); 277213483730SMike Christie scsi_queue_work(ha->host, &ddb_entry->sess->scan_work); 277313483730SMike Christie } 277413483730SMike Christie return QLA_SUCCESS; 277513483730SMike Christie } 277613483730SMike Christie 277713483730SMike Christie int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session) 277813483730SMike Christie { 277913483730SMike Christie struct iscsi_session *sess; 278013483730SMike Christie struct ddb_entry *ddb_entry; 278113483730SMike Christie struct scsi_qla_host *ha; 278213483730SMike Christie 278313483730SMike Christie sess = cls_session->dd_data; 278413483730SMike Christie ddb_entry = sess->dd_data; 278513483730SMike Christie ha = ddb_entry->ha; 278613483730SMike Christie ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]" 278713483730SMike Christie " unblock user space session\n", ha->host_no, __func__, 278813483730SMike Christie ddb_entry->fw_ddb_index); 278913483730SMike Christie iscsi_conn_start(ddb_entry->conn); 279013483730SMike Christie iscsi_conn_login_event(ddb_entry->conn, 279113483730SMike Christie ISCSI_CONN_STATE_LOGGED_IN); 279213483730SMike Christie 279313483730SMike Christie return QLA_SUCCESS; 279413483730SMike Christie } 279513483730SMike Christie 27962d7924e6SVikas Chaudhary static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha) 27972d7924e6SVikas Chaudhary { 2798b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices); 27992d7924e6SVikas Chaudhary } 28002d7924e6SVikas Chaudhary 280113483730SMike Christie static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess) 280213483730SMike Christie { 280313483730SMike Christie uint16_t relogin_timer; 280413483730SMike Christie struct iscsi_session *sess; 280513483730SMike Christie struct ddb_entry *ddb_entry; 280613483730SMike Christie struct scsi_qla_host *ha; 280713483730SMike Christie 280813483730SMike Christie sess = cls_sess->dd_data; 280913483730SMike Christie ddb_entry = sess->dd_data; 281013483730SMike Christie ha = ddb_entry->ha; 281113483730SMike Christie 281213483730SMike Christie relogin_timer = max(ddb_entry->default_relogin_timeout, 281313483730SMike Christie (uint16_t)RELOGIN_TOV); 281413483730SMike Christie atomic_set(&ddb_entry->relogin_timer, relogin_timer); 281513483730SMike Christie 281613483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 281713483730SMike Christie "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no, 281813483730SMike Christie ddb_entry->fw_ddb_index, relogin_timer)); 281913483730SMike Christie 282013483730SMike Christie qla4xxx_login_flash_ddb(cls_sess); 282113483730SMike Christie } 282213483730SMike Christie 282313483730SMike Christie static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess) 282413483730SMike Christie { 282513483730SMike Christie struct iscsi_session *sess; 282613483730SMike Christie struct ddb_entry *ddb_entry; 282713483730SMike Christie struct scsi_qla_host *ha; 282813483730SMike Christie 282913483730SMike Christie sess = cls_sess->dd_data; 283013483730SMike Christie ddb_entry = sess->dd_data; 283113483730SMike Christie ha = ddb_entry->ha; 283213483730SMike Christie 283313483730SMike Christie if (!(ddb_entry->ddb_type == FLASH_DDB)) 283413483730SMike Christie return; 283513483730SMike Christie 283613483730SMike Christie if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) && 283713483730SMike Christie !iscsi_is_session_online(cls_sess)) { 283813483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 283913483730SMike Christie "relogin issued\n")); 284013483730SMike Christie qla4xxx_relogin_flash_ddb(cls_sess); 284113483730SMike Christie } 284213483730SMike Christie } 284313483730SMike Christie 2844f4f5df23SVikas Chaudhary void qla4xxx_wake_dpc(struct scsi_qla_host *ha) 2845f4f5df23SVikas Chaudhary { 28461b46807eSLalit Chandivade if (ha->dpc_thread) 2847f4f5df23SVikas Chaudhary queue_work(ha->dpc_thread, &ha->dpc_work); 2848f4f5df23SVikas Chaudhary } 2849f4f5df23SVikas Chaudhary 2850afaf5a2dSDavid Somayajulu /** 2851afaf5a2dSDavid Somayajulu * qla4xxx_do_dpc - dpc routine 2852afaf5a2dSDavid Somayajulu * @data: in our case pointer to adapter structure 2853afaf5a2dSDavid Somayajulu * 2854afaf5a2dSDavid Somayajulu * This routine is a task that is schedule by the interrupt handler 2855afaf5a2dSDavid Somayajulu * to perform the background processing for interrupts. We put it 2856afaf5a2dSDavid Somayajulu * on a task queue that is consumed whenever the scheduler runs; that's 2857afaf5a2dSDavid Somayajulu * so you can do anything (i.e. put the process to sleep etc). In fact, 2858afaf5a2dSDavid Somayajulu * the mid-level tries to sleep when it reaches the driver threshold 2859afaf5a2dSDavid Somayajulu * "host->can_queue". This can cause a panic if we were in our interrupt code. 2860afaf5a2dSDavid Somayajulu **/ 2861c4028958SDavid Howells static void qla4xxx_do_dpc(struct work_struct *work) 2862afaf5a2dSDavid Somayajulu { 2863c4028958SDavid Howells struct scsi_qla_host *ha = 2864c4028958SDavid Howells container_of(work, struct scsi_qla_host, dpc_work); 2865477ffb9dSDavid C Somayajulu int status = QLA_ERROR; 2866afaf5a2dSDavid Somayajulu 2867f26b9044SDavid C Somayajulu DEBUG2(printk("scsi%ld: %s: DPC handler waking up." 2868f4f5df23SVikas Chaudhary "flags = 0x%08lx, dpc_flags = 0x%08lx\n", 2869f4f5df23SVikas Chaudhary ha->host_no, __func__, ha->flags, ha->dpc_flags)) 2870afaf5a2dSDavid Somayajulu 2871afaf5a2dSDavid Somayajulu /* Initialization not yet finished. Don't do anything yet. */ 2872afaf5a2dSDavid Somayajulu if (!test_bit(AF_INIT_DONE, &ha->flags)) 28731b46807eSLalit Chandivade return; 2874afaf5a2dSDavid Somayajulu 28752232be0dSLalit Chandivade if (test_bit(AF_EEH_BUSY, &ha->flags)) { 28762232be0dSLalit Chandivade DEBUG2(printk(KERN_INFO "scsi%ld: %s: flags = %lx\n", 28772232be0dSLalit Chandivade ha->host_no, __func__, ha->flags)); 28781b46807eSLalit Chandivade return; 28792232be0dSLalit Chandivade } 28802232be0dSLalit Chandivade 2881f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 2882f4f5df23SVikas Chaudhary if (test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags)) { 2883f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 2884f4f5df23SVikas Chaudhary qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 2885f4f5df23SVikas Chaudhary QLA82XX_DEV_FAILED); 2886f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 2887f4f5df23SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); 2888f4f5df23SVikas Chaudhary qla4_8xxx_device_state_handler(ha); 2889f4f5df23SVikas Chaudhary } 2890f4f5df23SVikas Chaudhary if (test_and_clear_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) { 2891f4f5df23SVikas Chaudhary qla4_8xxx_need_qsnt_handler(ha); 2892f4f5df23SVikas Chaudhary } 2893f4f5df23SVikas Chaudhary } 2894f4f5df23SVikas Chaudhary 2895f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) && 2896f4f5df23SVikas Chaudhary (test_bit(DPC_RESET_HA, &ha->dpc_flags) || 2897afaf5a2dSDavid Somayajulu test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) || 2898f4f5df23SVikas Chaudhary test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags))) { 2899f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 2900f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 2901f4f5df23SVikas Chaudhary ha->host_no, __func__)); 2902f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA, &ha->dpc_flags); 2903f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2904f4f5df23SVikas Chaudhary clear_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 2905f4f5df23SVikas Chaudhary goto dpc_post_reset_ha; 2906f4f5df23SVikas Chaudhary } 2907f4f5df23SVikas Chaudhary if (test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) || 2908f26b9044SDavid C Somayajulu test_bit(DPC_RESET_HA, &ha->dpc_flags)) 2909f4f5df23SVikas Chaudhary qla4xxx_recover_adapter(ha); 2910afaf5a2dSDavid Somayajulu 2911477ffb9dSDavid C Somayajulu if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) { 2912afaf5a2dSDavid Somayajulu uint8_t wait_time = RESET_INTR_TOV; 2913afaf5a2dSDavid Somayajulu 2914afaf5a2dSDavid Somayajulu while ((readw(&ha->reg->ctrl_status) & 2915afaf5a2dSDavid Somayajulu (CSR_SOFT_RESET | CSR_FORCE_SOFT_RESET)) != 0) { 2916afaf5a2dSDavid Somayajulu if (--wait_time == 0) 2917afaf5a2dSDavid Somayajulu break; 2918afaf5a2dSDavid Somayajulu msleep(1000); 2919afaf5a2dSDavid Somayajulu } 2920afaf5a2dSDavid Somayajulu if (wait_time == 0) 2921afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld: %s: SR|FSR " 2922afaf5a2dSDavid Somayajulu "bit not cleared-- resetting\n", 2923afaf5a2dSDavid Somayajulu ha->host_no, __func__)); 2924f4f5df23SVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 2925477ffb9dSDavid C Somayajulu if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS) { 2926477ffb9dSDavid C Somayajulu qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 2927f4f5df23SVikas Chaudhary status = qla4xxx_recover_adapter(ha); 2928477ffb9dSDavid C Somayajulu } 2929477ffb9dSDavid C Somayajulu clear_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); 2930477ffb9dSDavid C Somayajulu if (status == QLA_SUCCESS) 2931f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 2932afaf5a2dSDavid Somayajulu } 2933afaf5a2dSDavid Somayajulu } 2934afaf5a2dSDavid Somayajulu 2935f4f5df23SVikas Chaudhary dpc_post_reset_ha: 2936afaf5a2dSDavid Somayajulu /* ---- process AEN? --- */ 2937afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) 2938afaf5a2dSDavid Somayajulu qla4xxx_process_aen(ha, PROCESS_ALL_AENS); 2939afaf5a2dSDavid Somayajulu 2940afaf5a2dSDavid Somayajulu /* ---- Get DHCP IP Address? --- */ 2941afaf5a2dSDavid Somayajulu if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags)) 2942afaf5a2dSDavid Somayajulu qla4xxx_get_dhcp_ip_address(ha); 2943afaf5a2dSDavid Somayajulu 294413483730SMike Christie /* ---- relogin device? --- */ 294513483730SMike Christie if (adapter_up(ha) && 294613483730SMike Christie test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) { 294713483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin); 294813483730SMike Christie } 294913483730SMike Christie 2950065aa1b4SVikas Chaudhary /* ---- link change? --- */ 2951065aa1b4SVikas Chaudhary if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) { 2952065aa1b4SVikas Chaudhary if (!test_bit(AF_LINK_UP, &ha->flags)) { 2953065aa1b4SVikas Chaudhary /* ---- link down? --- */ 29542d7924e6SVikas Chaudhary qla4xxx_mark_all_devices_missing(ha); 2955065aa1b4SVikas Chaudhary } else { 2956065aa1b4SVikas Chaudhary /* ---- link up? --- * 2957065aa1b4SVikas Chaudhary * F/W will auto login to all devices ONLY ONCE after 2958065aa1b4SVikas Chaudhary * link up during driver initialization and runtime 2959065aa1b4SVikas Chaudhary * fatal error recovery. Therefore, the driver must 2960065aa1b4SVikas Chaudhary * manually relogin to devices when recovering from 2961065aa1b4SVikas Chaudhary * connection failures, logouts, expired KATO, etc. */ 296213483730SMike Christie if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) { 296313483730SMike Christie qla4xxx_build_ddb_list(ha, ha->is_reset); 296413483730SMike Christie iscsi_host_for_each_session(ha->host, 296513483730SMike Christie qla4xxx_login_flash_ddb); 296613483730SMike Christie } else 29672d7924e6SVikas Chaudhary qla4xxx_relogin_all_devices(ha); 2968065aa1b4SVikas Chaudhary } 2969065aa1b4SVikas Chaudhary } 2970afaf5a2dSDavid Somayajulu } 2971afaf5a2dSDavid Somayajulu 2972afaf5a2dSDavid Somayajulu /** 2973afaf5a2dSDavid Somayajulu * qla4xxx_free_adapter - release the adapter 2974afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 2975afaf5a2dSDavid Somayajulu **/ 2976afaf5a2dSDavid Somayajulu static void qla4xxx_free_adapter(struct scsi_qla_host *ha) 2977afaf5a2dSDavid Somayajulu { 29788a288960SSarang Radke qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 2979afaf5a2dSDavid Somayajulu 2980afaf5a2dSDavid Somayajulu if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) { 2981afaf5a2dSDavid Somayajulu /* Turn-off interrupts on the card. */ 2982f4f5df23SVikas Chaudhary ha->isp_ops->disable_intrs(ha); 2983afaf5a2dSDavid Somayajulu } 2984afaf5a2dSDavid Somayajulu 2985afaf5a2dSDavid Somayajulu /* Remove timer thread, if present */ 2986afaf5a2dSDavid Somayajulu if (ha->timer_active) 2987afaf5a2dSDavid Somayajulu qla4xxx_stop_timer(ha); 2988afaf5a2dSDavid Somayajulu 2989f4f5df23SVikas Chaudhary /* Kill the kernel thread for this host */ 2990f4f5df23SVikas Chaudhary if (ha->dpc_thread) 2991f4f5df23SVikas Chaudhary destroy_workqueue(ha->dpc_thread); 2992f4f5df23SVikas Chaudhary 2993b3a271a9SManish Rangankar /* Kill the kernel thread for this host */ 2994b3a271a9SManish Rangankar if (ha->task_wq) 2995b3a271a9SManish Rangankar destroy_workqueue(ha->task_wq); 2996b3a271a9SManish Rangankar 2997f4f5df23SVikas Chaudhary /* Put firmware in known state */ 2998f4f5df23SVikas Chaudhary ha->isp_ops->reset_firmware(ha); 2999f4f5df23SVikas Chaudhary 3000f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 3001f4f5df23SVikas Chaudhary qla4_8xxx_idc_lock(ha); 3002f4f5df23SVikas Chaudhary qla4_8xxx_clear_drv_active(ha); 3003f4f5df23SVikas Chaudhary qla4_8xxx_idc_unlock(ha); 3004f4f5df23SVikas Chaudhary } 3005f4f5df23SVikas Chaudhary 3006afaf5a2dSDavid Somayajulu /* Detach interrupts */ 3007afaf5a2dSDavid Somayajulu if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) 3008f4f5df23SVikas Chaudhary qla4xxx_free_irqs(ha); 3009afaf5a2dSDavid Somayajulu 3010bee4fe8eSDavid C Somayajulu /* free extra memory */ 3011bee4fe8eSDavid C Somayajulu qla4xxx_mem_free(ha); 3012f4f5df23SVikas Chaudhary } 3013bee4fe8eSDavid C Somayajulu 3014f4f5df23SVikas Chaudhary int qla4_8xxx_iospace_config(struct scsi_qla_host *ha) 3015f4f5df23SVikas Chaudhary { 3016f4f5df23SVikas Chaudhary int status = 0; 3017f4f5df23SVikas Chaudhary uint8_t revision_id; 3018f4f5df23SVikas Chaudhary unsigned long mem_base, mem_len, db_base, db_len; 3019f4f5df23SVikas Chaudhary struct pci_dev *pdev = ha->pdev; 3020afaf5a2dSDavid Somayajulu 3021f4f5df23SVikas Chaudhary status = pci_request_regions(pdev, DRIVER_NAME); 3022f4f5df23SVikas Chaudhary if (status) { 3023f4f5df23SVikas Chaudhary printk(KERN_WARNING 3024f4f5df23SVikas Chaudhary "scsi(%ld) Failed to reserve PIO regions (%s) " 3025f4f5df23SVikas Chaudhary "status=%d\n", ha->host_no, pci_name(pdev), status); 3026f4f5df23SVikas Chaudhary goto iospace_error_exit; 3027f4f5df23SVikas Chaudhary } 3028f4f5df23SVikas Chaudhary 3029f4f5df23SVikas Chaudhary pci_read_config_byte(pdev, PCI_REVISION_ID, &revision_id); 3030f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: revision-id=%d\n", 3031f4f5df23SVikas Chaudhary __func__, revision_id)); 3032f4f5df23SVikas Chaudhary ha->revision_id = revision_id; 3033f4f5df23SVikas Chaudhary 3034f4f5df23SVikas Chaudhary /* remap phys address */ 3035f4f5df23SVikas Chaudhary mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ 3036f4f5df23SVikas Chaudhary mem_len = pci_resource_len(pdev, 0); 3037f4f5df23SVikas Chaudhary DEBUG2(printk(KERN_INFO "%s: ioremap from %lx a size of %lx\n", 3038f4f5df23SVikas Chaudhary __func__, mem_base, mem_len)); 3039f4f5df23SVikas Chaudhary 3040f4f5df23SVikas Chaudhary /* mapping of pcibase pointer */ 3041f4f5df23SVikas Chaudhary ha->nx_pcibase = (unsigned long)ioremap(mem_base, mem_len); 3042f4f5df23SVikas Chaudhary if (!ha->nx_pcibase) { 3043f4f5df23SVikas Chaudhary printk(KERN_ERR 3044f4f5df23SVikas Chaudhary "cannot remap MMIO (%s), aborting\n", pci_name(pdev)); 3045f4f5df23SVikas Chaudhary pci_release_regions(ha->pdev); 3046f4f5df23SVikas Chaudhary goto iospace_error_exit; 3047f4f5df23SVikas Chaudhary } 3048f4f5df23SVikas Chaudhary 3049f4f5df23SVikas Chaudhary /* Mapping of IO base pointer, door bell read and write pointer */ 3050f4f5df23SVikas Chaudhary 3051f4f5df23SVikas Chaudhary /* mapping of IO base pointer */ 3052f4f5df23SVikas Chaudhary ha->qla4_8xxx_reg = 3053f4f5df23SVikas Chaudhary (struct device_reg_82xx __iomem *)((uint8_t *)ha->nx_pcibase + 3054f4f5df23SVikas Chaudhary 0xbc000 + (ha->pdev->devfn << 11)); 3055f4f5df23SVikas Chaudhary 3056f4f5df23SVikas Chaudhary db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ 3057f4f5df23SVikas Chaudhary db_len = pci_resource_len(pdev, 4); 3058f4f5df23SVikas Chaudhary 30592657c800SShyam Sundar ha->nx_db_wr_ptr = (ha->pdev->devfn == 4 ? QLA82XX_CAM_RAM_DB1 : 30602657c800SShyam Sundar QLA82XX_CAM_RAM_DB2); 3061f4f5df23SVikas Chaudhary 30622657c800SShyam Sundar return 0; 3063f4f5df23SVikas Chaudhary iospace_error_exit: 3064f4f5df23SVikas Chaudhary return -ENOMEM; 3065afaf5a2dSDavid Somayajulu } 3066afaf5a2dSDavid Somayajulu 3067afaf5a2dSDavid Somayajulu /*** 3068afaf5a2dSDavid Somayajulu * qla4xxx_iospace_config - maps registers 3069afaf5a2dSDavid Somayajulu * @ha: pointer to adapter structure 3070afaf5a2dSDavid Somayajulu * 3071afaf5a2dSDavid Somayajulu * This routines maps HBA's registers from the pci address space 3072afaf5a2dSDavid Somayajulu * into the kernel virtual address space for memory mapped i/o. 3073afaf5a2dSDavid Somayajulu **/ 3074f4f5df23SVikas Chaudhary int qla4xxx_iospace_config(struct scsi_qla_host *ha) 3075afaf5a2dSDavid Somayajulu { 3076afaf5a2dSDavid Somayajulu unsigned long pio, pio_len, pio_flags; 3077afaf5a2dSDavid Somayajulu unsigned long mmio, mmio_len, mmio_flags; 3078afaf5a2dSDavid Somayajulu 3079afaf5a2dSDavid Somayajulu pio = pci_resource_start(ha->pdev, 0); 3080afaf5a2dSDavid Somayajulu pio_len = pci_resource_len(ha->pdev, 0); 3081afaf5a2dSDavid Somayajulu pio_flags = pci_resource_flags(ha->pdev, 0); 3082afaf5a2dSDavid Somayajulu if (pio_flags & IORESOURCE_IO) { 3083afaf5a2dSDavid Somayajulu if (pio_len < MIN_IOBASE_LEN) { 3084c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3085afaf5a2dSDavid Somayajulu "Invalid PCI I/O region size\n"); 3086afaf5a2dSDavid Somayajulu pio = 0; 3087afaf5a2dSDavid Somayajulu } 3088afaf5a2dSDavid Somayajulu } else { 3089c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "region #0 not a PIO resource\n"); 3090afaf5a2dSDavid Somayajulu pio = 0; 3091afaf5a2dSDavid Somayajulu } 3092afaf5a2dSDavid Somayajulu 3093afaf5a2dSDavid Somayajulu /* Use MMIO operations for all accesses. */ 3094afaf5a2dSDavid Somayajulu mmio = pci_resource_start(ha->pdev, 1); 3095afaf5a2dSDavid Somayajulu mmio_len = pci_resource_len(ha->pdev, 1); 3096afaf5a2dSDavid Somayajulu mmio_flags = pci_resource_flags(ha->pdev, 1); 3097afaf5a2dSDavid Somayajulu 3098afaf5a2dSDavid Somayajulu if (!(mmio_flags & IORESOURCE_MEM)) { 3099c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3100afaf5a2dSDavid Somayajulu "region #0 not an MMIO resource, aborting\n"); 3101afaf5a2dSDavid Somayajulu 3102afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3103afaf5a2dSDavid Somayajulu } 3104c2660df3SVikas Chaudhary 3105afaf5a2dSDavid Somayajulu if (mmio_len < MIN_IOBASE_LEN) { 3106c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3107afaf5a2dSDavid Somayajulu "Invalid PCI mem region size, aborting\n"); 3108afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3109afaf5a2dSDavid Somayajulu } 3110afaf5a2dSDavid Somayajulu 3111afaf5a2dSDavid Somayajulu if (pci_request_regions(ha->pdev, DRIVER_NAME)) { 3112c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 3113afaf5a2dSDavid Somayajulu "Failed to reserve PIO/MMIO regions\n"); 3114afaf5a2dSDavid Somayajulu 3115afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3116afaf5a2dSDavid Somayajulu } 3117afaf5a2dSDavid Somayajulu 3118afaf5a2dSDavid Somayajulu ha->pio_address = pio; 3119afaf5a2dSDavid Somayajulu ha->pio_length = pio_len; 3120afaf5a2dSDavid Somayajulu ha->reg = ioremap(mmio, MIN_IOBASE_LEN); 3121afaf5a2dSDavid Somayajulu if (!ha->reg) { 3122c2660df3SVikas Chaudhary ql4_printk(KERN_ERR, ha, 3123afaf5a2dSDavid Somayajulu "cannot remap MMIO, aborting\n"); 3124afaf5a2dSDavid Somayajulu 3125afaf5a2dSDavid Somayajulu goto iospace_error_exit; 3126afaf5a2dSDavid Somayajulu } 3127afaf5a2dSDavid Somayajulu 3128afaf5a2dSDavid Somayajulu return 0; 3129afaf5a2dSDavid Somayajulu 3130afaf5a2dSDavid Somayajulu iospace_error_exit: 3131afaf5a2dSDavid Somayajulu return -ENOMEM; 3132afaf5a2dSDavid Somayajulu } 3133afaf5a2dSDavid Somayajulu 3134f4f5df23SVikas Chaudhary static struct isp_operations qla4xxx_isp_ops = { 3135f4f5df23SVikas Chaudhary .iospace_config = qla4xxx_iospace_config, 3136f4f5df23SVikas Chaudhary .pci_config = qla4xxx_pci_config, 3137f4f5df23SVikas Chaudhary .disable_intrs = qla4xxx_disable_intrs, 3138f4f5df23SVikas Chaudhary .enable_intrs = qla4xxx_enable_intrs, 3139f4f5df23SVikas Chaudhary .start_firmware = qla4xxx_start_firmware, 3140f4f5df23SVikas Chaudhary .intr_handler = qla4xxx_intr_handler, 3141f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4xxx_interrupt_service_routine, 3142f4f5df23SVikas Chaudhary .reset_chip = qla4xxx_soft_reset, 3143f4f5df23SVikas Chaudhary .reset_firmware = qla4xxx_hw_reset, 3144f4f5df23SVikas Chaudhary .queue_iocb = qla4xxx_queue_iocb, 3145f4f5df23SVikas Chaudhary .complete_iocb = qla4xxx_complete_iocb, 3146f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4xxx_rd_shdw_req_q_out, 3147f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4xxx_rd_shdw_rsp_q_in, 3148f4f5df23SVikas Chaudhary .get_sys_info = qla4xxx_get_sys_info, 3149f4f5df23SVikas Chaudhary }; 3150f4f5df23SVikas Chaudhary 3151f4f5df23SVikas Chaudhary static struct isp_operations qla4_8xxx_isp_ops = { 3152f4f5df23SVikas Chaudhary .iospace_config = qla4_8xxx_iospace_config, 3153f4f5df23SVikas Chaudhary .pci_config = qla4_8xxx_pci_config, 3154f4f5df23SVikas Chaudhary .disable_intrs = qla4_8xxx_disable_intrs, 3155f4f5df23SVikas Chaudhary .enable_intrs = qla4_8xxx_enable_intrs, 3156f4f5df23SVikas Chaudhary .start_firmware = qla4_8xxx_load_risc, 3157f4f5df23SVikas Chaudhary .intr_handler = qla4_8xxx_intr_handler, 3158f4f5df23SVikas Chaudhary .interrupt_service_routine = qla4_8xxx_interrupt_service_routine, 3159f4f5df23SVikas Chaudhary .reset_chip = qla4_8xxx_isp_reset, 3160f4f5df23SVikas Chaudhary .reset_firmware = qla4_8xxx_stop_firmware, 3161f4f5df23SVikas Chaudhary .queue_iocb = qla4_8xxx_queue_iocb, 3162f4f5df23SVikas Chaudhary .complete_iocb = qla4_8xxx_complete_iocb, 3163f4f5df23SVikas Chaudhary .rd_shdw_req_q_out = qla4_8xxx_rd_shdw_req_q_out, 3164f4f5df23SVikas Chaudhary .rd_shdw_rsp_q_in = qla4_8xxx_rd_shdw_rsp_q_in, 3165f4f5df23SVikas Chaudhary .get_sys_info = qla4_8xxx_get_sys_info, 3166f4f5df23SVikas Chaudhary }; 3167f4f5df23SVikas Chaudhary 3168f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3169f4f5df23SVikas Chaudhary { 3170f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->req_q_out); 3171f4f5df23SVikas Chaudhary } 3172f4f5df23SVikas Chaudhary 3173f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_req_q_out(struct scsi_qla_host *ha) 3174f4f5df23SVikas Chaudhary { 3175f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->req_q_out)); 3176f4f5df23SVikas Chaudhary } 3177f4f5df23SVikas Chaudhary 3178f4f5df23SVikas Chaudhary uint16_t qla4xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3179f4f5df23SVikas Chaudhary { 3180f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in); 3181f4f5df23SVikas Chaudhary } 3182f4f5df23SVikas Chaudhary 3183f4f5df23SVikas Chaudhary uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha) 3184f4f5df23SVikas Chaudhary { 3185f4f5df23SVikas Chaudhary return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in)); 3186f4f5df23SVikas Chaudhary } 3187f4f5df23SVikas Chaudhary 31882a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf) 31892a991c21SManish Rangankar { 31902a991c21SManish Rangankar struct scsi_qla_host *ha = data; 31912a991c21SManish Rangankar char *str = buf; 31922a991c21SManish Rangankar int rc; 31932a991c21SManish Rangankar 31942a991c21SManish Rangankar switch (type) { 31952a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 31962a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 31972a991c21SManish Rangankar break; 31982a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 31992a991c21SManish Rangankar rc = sprintf(str, "0\n"); 32002a991c21SManish Rangankar break; 32012a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 32022a991c21SManish Rangankar rc = sysfs_format_mac(str, ha->my_mac, 32032a991c21SManish Rangankar MAC_ADDR_LEN); 32042a991c21SManish Rangankar break; 32052a991c21SManish Rangankar default: 32062a991c21SManish Rangankar rc = -ENOSYS; 32072a991c21SManish Rangankar break; 32082a991c21SManish Rangankar } 32092a991c21SManish Rangankar return rc; 32102a991c21SManish Rangankar } 32112a991c21SManish Rangankar 3212587a1f16SAl Viro static umode_t qla4xxx_eth_get_attr_visibility(void *data, int type) 32132a991c21SManish Rangankar { 32142a991c21SManish Rangankar int rc; 32152a991c21SManish Rangankar 32162a991c21SManish Rangankar switch (type) { 32172a991c21SManish Rangankar case ISCSI_BOOT_ETH_FLAGS: 32182a991c21SManish Rangankar case ISCSI_BOOT_ETH_MAC: 32192a991c21SManish Rangankar case ISCSI_BOOT_ETH_INDEX: 32202a991c21SManish Rangankar rc = S_IRUGO; 32212a991c21SManish Rangankar break; 32222a991c21SManish Rangankar default: 32232a991c21SManish Rangankar rc = 0; 32242a991c21SManish Rangankar break; 32252a991c21SManish Rangankar } 32262a991c21SManish Rangankar return rc; 32272a991c21SManish Rangankar } 32282a991c21SManish Rangankar 32292a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf) 32302a991c21SManish Rangankar { 32312a991c21SManish Rangankar struct scsi_qla_host *ha = data; 32322a991c21SManish Rangankar char *str = buf; 32332a991c21SManish Rangankar int rc; 32342a991c21SManish Rangankar 32352a991c21SManish Rangankar switch (type) { 32362a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 32372a991c21SManish Rangankar rc = sprintf(str, "%s\n", ha->name_string); 32382a991c21SManish Rangankar break; 32392a991c21SManish Rangankar default: 32402a991c21SManish Rangankar rc = -ENOSYS; 32412a991c21SManish Rangankar break; 32422a991c21SManish Rangankar } 32432a991c21SManish Rangankar return rc; 32442a991c21SManish Rangankar } 32452a991c21SManish Rangankar 3246587a1f16SAl Viro static umode_t qla4xxx_ini_get_attr_visibility(void *data, int type) 32472a991c21SManish Rangankar { 32482a991c21SManish Rangankar int rc; 32492a991c21SManish Rangankar 32502a991c21SManish Rangankar switch (type) { 32512a991c21SManish Rangankar case ISCSI_BOOT_INI_INITIATOR_NAME: 32522a991c21SManish Rangankar rc = S_IRUGO; 32532a991c21SManish Rangankar break; 32542a991c21SManish Rangankar default: 32552a991c21SManish Rangankar rc = 0; 32562a991c21SManish Rangankar break; 32572a991c21SManish Rangankar } 32582a991c21SManish Rangankar return rc; 32592a991c21SManish Rangankar } 32602a991c21SManish Rangankar 32612a991c21SManish Rangankar static ssize_t 32622a991c21SManish Rangankar qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type, 32632a991c21SManish Rangankar char *buf) 32642a991c21SManish Rangankar { 32652a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 32662a991c21SManish Rangankar char *str = buf; 32672a991c21SManish Rangankar int rc; 32682a991c21SManish Rangankar 32692a991c21SManish Rangankar switch (type) { 32702a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 32712a991c21SManish Rangankar rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name); 32722a991c21SManish Rangankar break; 32732a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 32742a991c21SManish Rangankar if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1) 32752a991c21SManish Rangankar rc = sprintf(buf, "%pI4\n", 32762a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 32772a991c21SManish Rangankar else 32782a991c21SManish Rangankar rc = sprintf(str, "%pI6\n", 32792a991c21SManish Rangankar &boot_conn->dest_ipaddr.ip_address); 32802a991c21SManish Rangankar break; 32812a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 32822a991c21SManish Rangankar rc = sprintf(str, "%d\n", boot_conn->dest_port); 32832a991c21SManish Rangankar break; 32842a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 32852a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 32862a991c21SManish Rangankar boot_conn->chap.target_chap_name_length, 32872a991c21SManish Rangankar (char *)&boot_conn->chap.target_chap_name); 32882a991c21SManish Rangankar break; 32892a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 32902a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 32912a991c21SManish Rangankar boot_conn->chap.target_secret_length, 32922a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret); 32932a991c21SManish Rangankar break; 32942a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 32952a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 32962a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length, 32972a991c21SManish Rangankar (char *)&boot_conn->chap.intr_chap_name); 32982a991c21SManish Rangankar break; 32992a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 33002a991c21SManish Rangankar rc = sprintf(str, "%.*s\n", 33012a991c21SManish Rangankar boot_conn->chap.intr_secret_length, 33022a991c21SManish Rangankar (char *)&boot_conn->chap.intr_secret); 33032a991c21SManish Rangankar break; 33042a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 33052a991c21SManish Rangankar rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT); 33062a991c21SManish Rangankar break; 33072a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 33082a991c21SManish Rangankar rc = sprintf(str, "0\n"); 33092a991c21SManish Rangankar break; 33102a991c21SManish Rangankar default: 33112a991c21SManish Rangankar rc = -ENOSYS; 33122a991c21SManish Rangankar break; 33132a991c21SManish Rangankar } 33142a991c21SManish Rangankar return rc; 33152a991c21SManish Rangankar } 33162a991c21SManish Rangankar 33172a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf) 33182a991c21SManish Rangankar { 33192a991c21SManish Rangankar struct scsi_qla_host *ha = data; 33202a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess); 33212a991c21SManish Rangankar 33222a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 33232a991c21SManish Rangankar } 33242a991c21SManish Rangankar 33252a991c21SManish Rangankar static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf) 33262a991c21SManish Rangankar { 33272a991c21SManish Rangankar struct scsi_qla_host *ha = data; 33282a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess); 33292a991c21SManish Rangankar 33302a991c21SManish Rangankar return qla4xxx_show_boot_tgt_info(boot_sess, type, buf); 33312a991c21SManish Rangankar } 33322a991c21SManish Rangankar 3333587a1f16SAl Viro static umode_t qla4xxx_tgt_get_attr_visibility(void *data, int type) 33342a991c21SManish Rangankar { 33352a991c21SManish Rangankar int rc; 33362a991c21SManish Rangankar 33372a991c21SManish Rangankar switch (type) { 33382a991c21SManish Rangankar case ISCSI_BOOT_TGT_NAME: 33392a991c21SManish Rangankar case ISCSI_BOOT_TGT_IP_ADDR: 33402a991c21SManish Rangankar case ISCSI_BOOT_TGT_PORT: 33412a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_NAME: 33422a991c21SManish Rangankar case ISCSI_BOOT_TGT_CHAP_SECRET: 33432a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_NAME: 33442a991c21SManish Rangankar case ISCSI_BOOT_TGT_REV_CHAP_SECRET: 33452a991c21SManish Rangankar case ISCSI_BOOT_TGT_NIC_ASSOC: 33462a991c21SManish Rangankar case ISCSI_BOOT_TGT_FLAGS: 33472a991c21SManish Rangankar rc = S_IRUGO; 33482a991c21SManish Rangankar break; 33492a991c21SManish Rangankar default: 33502a991c21SManish Rangankar rc = 0; 33512a991c21SManish Rangankar break; 33522a991c21SManish Rangankar } 33532a991c21SManish Rangankar return rc; 33542a991c21SManish Rangankar } 33552a991c21SManish Rangankar 33562a991c21SManish Rangankar static void qla4xxx_boot_release(void *data) 33572a991c21SManish Rangankar { 33582a991c21SManish Rangankar struct scsi_qla_host *ha = data; 33592a991c21SManish Rangankar 33602a991c21SManish Rangankar scsi_host_put(ha->host); 33612a991c21SManish Rangankar } 33622a991c21SManish Rangankar 33632a991c21SManish Rangankar static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[]) 33642a991c21SManish Rangankar { 33652a991c21SManish Rangankar dma_addr_t buf_dma; 33662a991c21SManish Rangankar uint32_t addr, pri_addr, sec_addr; 33672a991c21SManish Rangankar uint32_t offset; 33682a991c21SManish Rangankar uint16_t func_num; 33692a991c21SManish Rangankar uint8_t val; 33702a991c21SManish Rangankar uint8_t *buf = NULL; 33712a991c21SManish Rangankar size_t size = 13 * sizeof(uint8_t); 33722a991c21SManish Rangankar int ret = QLA_SUCCESS; 33732a991c21SManish Rangankar 33742a991c21SManish Rangankar func_num = PCI_FUNC(ha->pdev->devfn); 33752a991c21SManish Rangankar 33760d5b36b8SManish Rangankar ql4_printk(KERN_INFO, ha, "%s: Get FW boot info for 0x%x func %d\n", 33770d5b36b8SManish Rangankar __func__, ha->pdev->device, func_num); 33782a991c21SManish Rangankar 33790d5b36b8SManish Rangankar if (is_qla40XX(ha)) { 33802a991c21SManish Rangankar if (func_num == 1) { 33812a991c21SManish Rangankar addr = NVRAM_PORT0_BOOT_MODE; 33822a991c21SManish Rangankar pri_addr = NVRAM_PORT0_BOOT_PRI_TGT; 33832a991c21SManish Rangankar sec_addr = NVRAM_PORT0_BOOT_SEC_TGT; 33842a991c21SManish Rangankar } else if (func_num == 3) { 33852a991c21SManish Rangankar addr = NVRAM_PORT1_BOOT_MODE; 33862a991c21SManish Rangankar pri_addr = NVRAM_PORT1_BOOT_PRI_TGT; 33872a991c21SManish Rangankar sec_addr = NVRAM_PORT1_BOOT_SEC_TGT; 33882a991c21SManish Rangankar } else { 33892a991c21SManish Rangankar ret = QLA_ERROR; 33902a991c21SManish Rangankar goto exit_boot_info; 33912a991c21SManish Rangankar } 33922a991c21SManish Rangankar 33932a991c21SManish Rangankar /* Check Boot Mode */ 33942a991c21SManish Rangankar val = rd_nvram_byte(ha, addr); 33952a991c21SManish Rangankar if (!(val & 0x07)) { 33962a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 33972a991c21SManish Rangankar "%s: Failed Boot options : 0x%x\n", 33982a991c21SManish Rangankar __func__, val)); 33992a991c21SManish Rangankar ret = QLA_ERROR; 34002a991c21SManish Rangankar goto exit_boot_info; 34012a991c21SManish Rangankar } 34022a991c21SManish Rangankar 34032a991c21SManish Rangankar /* get primary valid target index */ 34042a991c21SManish Rangankar val = rd_nvram_byte(ha, pri_addr); 34052a991c21SManish Rangankar if (val & BIT_7) 34062a991c21SManish Rangankar ddb_index[0] = (val & 0x7f); 34072a991c21SManish Rangankar 34082a991c21SManish Rangankar /* get secondary valid target index */ 34092a991c21SManish Rangankar val = rd_nvram_byte(ha, sec_addr); 34102a991c21SManish Rangankar if (val & BIT_7) 34112a991c21SManish Rangankar ddb_index[1] = (val & 0x7f); 34122a991c21SManish Rangankar 34132a991c21SManish Rangankar } else if (is_qla8022(ha)) { 34142a991c21SManish Rangankar buf = dma_alloc_coherent(&ha->pdev->dev, size, 34152a991c21SManish Rangankar &buf_dma, GFP_KERNEL); 34162a991c21SManish Rangankar if (!buf) { 34172a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 34182a991c21SManish Rangankar "%s: Unable to allocate dma buffer\n", 34192a991c21SManish Rangankar __func__)); 34202a991c21SManish Rangankar ret = QLA_ERROR; 34212a991c21SManish Rangankar goto exit_boot_info; 34222a991c21SManish Rangankar } 34232a991c21SManish Rangankar 34242a991c21SManish Rangankar if (ha->port_num == 0) 34252a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT0; 34262a991c21SManish Rangankar else if (ha->port_num == 1) 34272a991c21SManish Rangankar offset = BOOT_PARAM_OFFSET_PORT1; 34282a991c21SManish Rangankar else { 34292a991c21SManish Rangankar ret = QLA_ERROR; 34302a991c21SManish Rangankar goto exit_boot_info_free; 34312a991c21SManish Rangankar } 34322a991c21SManish Rangankar addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) + 34332a991c21SManish Rangankar offset; 34342a991c21SManish Rangankar if (qla4xxx_get_flash(ha, buf_dma, addr, 34352a991c21SManish Rangankar 13 * sizeof(uint8_t)) != QLA_SUCCESS) { 34362a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash" 34372a991c21SManish Rangankar "failed\n", ha->host_no, __func__)); 34382a991c21SManish Rangankar ret = QLA_ERROR; 34392a991c21SManish Rangankar goto exit_boot_info_free; 34402a991c21SManish Rangankar } 34412a991c21SManish Rangankar /* Check Boot Mode */ 34422a991c21SManish Rangankar if (!(buf[1] & 0x07)) { 34432a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, 34442a991c21SManish Rangankar "Failed: Boot options : 0x%x\n", 34452a991c21SManish Rangankar buf[1])); 34462a991c21SManish Rangankar ret = QLA_ERROR; 34472a991c21SManish Rangankar goto exit_boot_info_free; 34482a991c21SManish Rangankar } 34492a991c21SManish Rangankar 34502a991c21SManish Rangankar /* get primary valid target index */ 34512a991c21SManish Rangankar if (buf[2] & BIT_7) 34522a991c21SManish Rangankar ddb_index[0] = buf[2] & 0x7f; 34532a991c21SManish Rangankar 34542a991c21SManish Rangankar /* get secondary valid target index */ 34552a991c21SManish Rangankar if (buf[11] & BIT_7) 34562a991c21SManish Rangankar ddb_index[1] = buf[11] & 0x7f; 34572a991c21SManish Rangankar } else { 34582a991c21SManish Rangankar ret = QLA_ERROR; 34592a991c21SManish Rangankar goto exit_boot_info; 34602a991c21SManish Rangankar } 34612a991c21SManish Rangankar 34622a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary" 34632a991c21SManish Rangankar " target ID %d\n", __func__, ddb_index[0], 34642a991c21SManish Rangankar ddb_index[1])); 34652a991c21SManish Rangankar 346613483730SMike Christie ha->pri_ddb_idx = ddb_index[0]; 346713483730SMike Christie ha->sec_ddb_idx = ddb_index[1]; 346813483730SMike Christie 34692a991c21SManish Rangankar exit_boot_info_free: 34702a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma); 34712a991c21SManish Rangankar exit_boot_info: 34722a991c21SManish Rangankar return ret; 34732a991c21SManish Rangankar } 34742a991c21SManish Rangankar 347528deb45cSLalit Chandivade /** 347628deb45cSLalit Chandivade * qla4xxx_get_bidi_chap - Get a BIDI CHAP user and password 347728deb45cSLalit Chandivade * @ha: pointer to adapter structure 347828deb45cSLalit Chandivade * @username: CHAP username to be returned 347928deb45cSLalit Chandivade * @password: CHAP password to be returned 348028deb45cSLalit Chandivade * 348128deb45cSLalit Chandivade * If a boot entry has BIDI CHAP enabled then we need to set the BIDI CHAP 348228deb45cSLalit Chandivade * user and password in the sysfs entry in /sys/firmware/iscsi_boot#/. 348328deb45cSLalit Chandivade * So from the CHAP cache find the first BIDI CHAP entry and set it 348428deb45cSLalit Chandivade * to the boot record in sysfs. 348528deb45cSLalit Chandivade **/ 348628deb45cSLalit Chandivade static int qla4xxx_get_bidi_chap(struct scsi_qla_host *ha, char *username, 348728deb45cSLalit Chandivade char *password) 348828deb45cSLalit Chandivade { 348928deb45cSLalit Chandivade int i, ret = -EINVAL; 349028deb45cSLalit Chandivade int max_chap_entries = 0; 349128deb45cSLalit Chandivade struct ql4_chap_table *chap_table; 349228deb45cSLalit Chandivade 349328deb45cSLalit Chandivade if (is_qla8022(ha)) 349428deb45cSLalit Chandivade max_chap_entries = (ha->hw.flt_chap_size / 2) / 349528deb45cSLalit Chandivade sizeof(struct ql4_chap_table); 349628deb45cSLalit Chandivade else 349728deb45cSLalit Chandivade max_chap_entries = MAX_CHAP_ENTRIES_40XX; 349828deb45cSLalit Chandivade 349928deb45cSLalit Chandivade if (!ha->chap_list) { 350028deb45cSLalit Chandivade ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n"); 350128deb45cSLalit Chandivade return ret; 350228deb45cSLalit Chandivade } 350328deb45cSLalit Chandivade 350428deb45cSLalit Chandivade mutex_lock(&ha->chap_sem); 350528deb45cSLalit Chandivade for (i = 0; i < max_chap_entries; i++) { 350628deb45cSLalit Chandivade chap_table = (struct ql4_chap_table *)ha->chap_list + i; 350728deb45cSLalit Chandivade if (chap_table->cookie != 350828deb45cSLalit Chandivade __constant_cpu_to_le16(CHAP_VALID_COOKIE)) { 350928deb45cSLalit Chandivade continue; 351028deb45cSLalit Chandivade } 351128deb45cSLalit Chandivade 351228deb45cSLalit Chandivade if (chap_table->flags & BIT_7) /* local */ 351328deb45cSLalit Chandivade continue; 351428deb45cSLalit Chandivade 351528deb45cSLalit Chandivade if (!(chap_table->flags & BIT_6)) /* Not BIDI */ 351628deb45cSLalit Chandivade continue; 351728deb45cSLalit Chandivade 351828deb45cSLalit Chandivade strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN); 351928deb45cSLalit Chandivade strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN); 352028deb45cSLalit Chandivade ret = 0; 352128deb45cSLalit Chandivade break; 352228deb45cSLalit Chandivade } 352328deb45cSLalit Chandivade mutex_unlock(&ha->chap_sem); 352428deb45cSLalit Chandivade 352528deb45cSLalit Chandivade return ret; 352628deb45cSLalit Chandivade } 352728deb45cSLalit Chandivade 352828deb45cSLalit Chandivade 35292a991c21SManish Rangankar static int qla4xxx_get_boot_target(struct scsi_qla_host *ha, 35302a991c21SManish Rangankar struct ql4_boot_session_info *boot_sess, 35312a991c21SManish Rangankar uint16_t ddb_index) 35322a991c21SManish Rangankar { 35332a991c21SManish Rangankar struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0]; 35342a991c21SManish Rangankar struct dev_db_entry *fw_ddb_entry; 35352a991c21SManish Rangankar dma_addr_t fw_ddb_entry_dma; 35362a991c21SManish Rangankar uint16_t idx; 35372a991c21SManish Rangankar uint16_t options; 35382a991c21SManish Rangankar int ret = QLA_SUCCESS; 35392a991c21SManish Rangankar 35402a991c21SManish Rangankar fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 35412a991c21SManish Rangankar &fw_ddb_entry_dma, GFP_KERNEL); 35422a991c21SManish Rangankar if (!fw_ddb_entry) { 35432a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 35442a991c21SManish Rangankar "%s: Unable to allocate dma buffer.\n", 35452a991c21SManish Rangankar __func__)); 35462a991c21SManish Rangankar ret = QLA_ERROR; 35472a991c21SManish Rangankar return ret; 35482a991c21SManish Rangankar } 35492a991c21SManish Rangankar 35502a991c21SManish Rangankar if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry, 35512a991c21SManish Rangankar fw_ddb_entry_dma, ddb_index)) { 35522a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 35532a991c21SManish Rangankar "%s: Flash DDB read Failed\n", __func__)); 35542a991c21SManish Rangankar ret = QLA_ERROR; 35552a991c21SManish Rangankar goto exit_boot_target; 35562a991c21SManish Rangankar } 35572a991c21SManish Rangankar 35582a991c21SManish Rangankar /* Update target name and IP from DDB */ 35592a991c21SManish Rangankar memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name, 35602a991c21SManish Rangankar min(sizeof(boot_sess->target_name), 35612a991c21SManish Rangankar sizeof(fw_ddb_entry->iscsi_name))); 35622a991c21SManish Rangankar 35632a991c21SManish Rangankar options = le16_to_cpu(fw_ddb_entry->options); 35642a991c21SManish Rangankar if (options & DDB_OPT_IPV6_DEVICE) { 35652a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 35662a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN); 35672a991c21SManish Rangankar } else { 35682a991c21SManish Rangankar boot_conn->dest_ipaddr.ip_type = 0x1; 35692a991c21SManish Rangankar memcpy(&boot_conn->dest_ipaddr.ip_address, 35702a991c21SManish Rangankar &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN); 35712a991c21SManish Rangankar } 35722a991c21SManish Rangankar 35732a991c21SManish Rangankar boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port); 35742a991c21SManish Rangankar 35752a991c21SManish Rangankar /* update chap information */ 35762a991c21SManish Rangankar idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx); 35772a991c21SManish Rangankar 35782a991c21SManish Rangankar if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 35792a991c21SManish Rangankar 35802a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n")); 35812a991c21SManish Rangankar 35822a991c21SManish Rangankar ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap. 35832a991c21SManish Rangankar target_chap_name, 35842a991c21SManish Rangankar (char *)&boot_conn->chap.target_secret, 35852a991c21SManish Rangankar idx); 35862a991c21SManish Rangankar if (ret) { 35872a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set chap\n"); 35882a991c21SManish Rangankar ret = QLA_ERROR; 35892a991c21SManish Rangankar goto exit_boot_target; 35902a991c21SManish Rangankar } 35912a991c21SManish Rangankar 35922a991c21SManish Rangankar boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 35932a991c21SManish Rangankar boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN; 35942a991c21SManish Rangankar } 35952a991c21SManish Rangankar 35962a991c21SManish Rangankar if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) { 35972a991c21SManish Rangankar 35982a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n")); 35992a991c21SManish Rangankar 360028deb45cSLalit Chandivade ret = qla4xxx_get_bidi_chap(ha, 360128deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_chap_name, 360228deb45cSLalit Chandivade (char *)&boot_conn->chap.intr_secret); 360328deb45cSLalit Chandivade 36042a991c21SManish Rangankar if (ret) { 36052a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n"); 36062a991c21SManish Rangankar ret = QLA_ERROR; 36072a991c21SManish Rangankar goto exit_boot_target; 36082a991c21SManish Rangankar } 36092a991c21SManish Rangankar 36102a991c21SManish Rangankar boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN; 36112a991c21SManish Rangankar boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN; 36122a991c21SManish Rangankar } 36132a991c21SManish Rangankar 36142a991c21SManish Rangankar exit_boot_target: 36152a991c21SManish Rangankar dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), 36162a991c21SManish Rangankar fw_ddb_entry, fw_ddb_entry_dma); 36172a991c21SManish Rangankar return ret; 36182a991c21SManish Rangankar } 36192a991c21SManish Rangankar 36202a991c21SManish Rangankar static int qla4xxx_get_boot_info(struct scsi_qla_host *ha) 36212a991c21SManish Rangankar { 36222a991c21SManish Rangankar uint16_t ddb_index[2]; 36238de5b958SLalit Chandivade int ret = QLA_ERROR; 36248de5b958SLalit Chandivade int rval; 36252a991c21SManish Rangankar 36262a991c21SManish Rangankar memset(ddb_index, 0, sizeof(ddb_index)); 36278de5b958SLalit Chandivade ddb_index[0] = 0xffff; 36288de5b958SLalit Chandivade ddb_index[1] = 0xffff; 36292a991c21SManish Rangankar ret = get_fw_boot_info(ha, ddb_index); 36302a991c21SManish Rangankar if (ret != QLA_SUCCESS) { 36312a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, 36322a991c21SManish Rangankar "%s: Failed to set boot info.\n", __func__)); 36332a991c21SManish Rangankar return ret; 36342a991c21SManish Rangankar } 36352a991c21SManish Rangankar 363613483730SMike Christie if (ql4xdisablesysfsboot) 363713483730SMike Christie return QLA_SUCCESS; 363813483730SMike Christie 36398de5b958SLalit Chandivade if (ddb_index[0] == 0xffff) 36408de5b958SLalit Chandivade goto sec_target; 36418de5b958SLalit Chandivade 36428de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess), 36432a991c21SManish Rangankar ddb_index[0]); 36448de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 36452a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 36462a991c21SManish Rangankar "primary target\n", __func__)); 36478de5b958SLalit Chandivade } else 36488de5b958SLalit Chandivade ret = QLA_SUCCESS; 36492a991c21SManish Rangankar 36508de5b958SLalit Chandivade sec_target: 36518de5b958SLalit Chandivade if (ddb_index[1] == 0xffff) 36528de5b958SLalit Chandivade goto exit_get_boot_info; 36538de5b958SLalit Chandivade 36548de5b958SLalit Chandivade rval = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess), 36552a991c21SManish Rangankar ddb_index[1]); 36568de5b958SLalit Chandivade if (rval != QLA_SUCCESS) { 36572a991c21SManish Rangankar DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get " 36582a991c21SManish Rangankar "secondary target\n", __func__)); 36598de5b958SLalit Chandivade } else 36608de5b958SLalit Chandivade ret = QLA_SUCCESS; 36618de5b958SLalit Chandivade 36628de5b958SLalit Chandivade exit_get_boot_info: 36632a991c21SManish Rangankar return ret; 36642a991c21SManish Rangankar } 36652a991c21SManish Rangankar 36662a991c21SManish Rangankar static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha) 36672a991c21SManish Rangankar { 36682a991c21SManish Rangankar struct iscsi_boot_kobj *boot_kobj; 36692a991c21SManish Rangankar 36702a991c21SManish Rangankar if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS) 367113483730SMike Christie return QLA_ERROR; 367213483730SMike Christie 367313483730SMike Christie if (ql4xdisablesysfsboot) { 367413483730SMike Christie ql4_printk(KERN_INFO, ha, 367513483730SMike Christie "%s: syfsboot disabled - driver will trigger login" 367613483730SMike Christie "and publish session for discovery .\n", __func__); 367713483730SMike Christie return QLA_SUCCESS; 367813483730SMike Christie } 367913483730SMike Christie 36802a991c21SManish Rangankar 36812a991c21SManish Rangankar ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no); 36822a991c21SManish Rangankar if (!ha->boot_kset) 36832a991c21SManish Rangankar goto kset_free; 36842a991c21SManish Rangankar 36852a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 36862a991c21SManish Rangankar goto kset_free; 36872a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha, 36882a991c21SManish Rangankar qla4xxx_show_boot_tgt_pri_info, 36892a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 36902a991c21SManish Rangankar qla4xxx_boot_release); 36912a991c21SManish Rangankar if (!boot_kobj) 36922a991c21SManish Rangankar goto put_host; 36932a991c21SManish Rangankar 36942a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 36952a991c21SManish Rangankar goto kset_free; 36962a991c21SManish Rangankar boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha, 36972a991c21SManish Rangankar qla4xxx_show_boot_tgt_sec_info, 36982a991c21SManish Rangankar qla4xxx_tgt_get_attr_visibility, 36992a991c21SManish Rangankar qla4xxx_boot_release); 37002a991c21SManish Rangankar if (!boot_kobj) 37012a991c21SManish Rangankar goto put_host; 37022a991c21SManish Rangankar 37032a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 37042a991c21SManish Rangankar goto kset_free; 37052a991c21SManish Rangankar boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha, 37062a991c21SManish Rangankar qla4xxx_show_boot_ini_info, 37072a991c21SManish Rangankar qla4xxx_ini_get_attr_visibility, 37082a991c21SManish Rangankar qla4xxx_boot_release); 37092a991c21SManish Rangankar if (!boot_kobj) 37102a991c21SManish Rangankar goto put_host; 37112a991c21SManish Rangankar 37122a991c21SManish Rangankar if (!scsi_host_get(ha->host)) 37132a991c21SManish Rangankar goto kset_free; 37142a991c21SManish Rangankar boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha, 37152a991c21SManish Rangankar qla4xxx_show_boot_eth_info, 37162a991c21SManish Rangankar qla4xxx_eth_get_attr_visibility, 37172a991c21SManish Rangankar qla4xxx_boot_release); 37182a991c21SManish Rangankar if (!boot_kobj) 37192a991c21SManish Rangankar goto put_host; 37202a991c21SManish Rangankar 372113483730SMike Christie return QLA_SUCCESS; 37222a991c21SManish Rangankar 37232a991c21SManish Rangankar put_host: 37242a991c21SManish Rangankar scsi_host_put(ha->host); 37252a991c21SManish Rangankar kset_free: 37262a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 37272a991c21SManish Rangankar return -ENOMEM; 37282a991c21SManish Rangankar } 37292a991c21SManish Rangankar 37304549415aSLalit Chandivade 37314549415aSLalit Chandivade /** 37324549415aSLalit Chandivade * qla4xxx_create chap_list - Create CHAP list from FLASH 37334549415aSLalit Chandivade * @ha: pointer to adapter structure 37344549415aSLalit Chandivade * 37354549415aSLalit Chandivade * Read flash and make a list of CHAP entries, during login when a CHAP entry 37364549415aSLalit Chandivade * is received, it will be checked in this list. If entry exist then the CHAP 37374549415aSLalit Chandivade * entry index is set in the DDB. If CHAP entry does not exist in this list 37384549415aSLalit Chandivade * then a new entry is added in FLASH in CHAP table and the index obtained is 37394549415aSLalit Chandivade * used in the DDB. 37404549415aSLalit Chandivade **/ 37414549415aSLalit Chandivade static void qla4xxx_create_chap_list(struct scsi_qla_host *ha) 37424549415aSLalit Chandivade { 37434549415aSLalit Chandivade int rval = 0; 37444549415aSLalit Chandivade uint8_t *chap_flash_data = NULL; 37454549415aSLalit Chandivade uint32_t offset; 37464549415aSLalit Chandivade dma_addr_t chap_dma; 37474549415aSLalit Chandivade uint32_t chap_size = 0; 37484549415aSLalit Chandivade 37494549415aSLalit Chandivade if (is_qla40XX(ha)) 37504549415aSLalit Chandivade chap_size = MAX_CHAP_ENTRIES_40XX * 37514549415aSLalit Chandivade sizeof(struct ql4_chap_table); 37524549415aSLalit Chandivade else /* Single region contains CHAP info for both 37534549415aSLalit Chandivade * ports which is divided into half for each port. 37544549415aSLalit Chandivade */ 37554549415aSLalit Chandivade chap_size = ha->hw.flt_chap_size / 2; 37564549415aSLalit Chandivade 37574549415aSLalit Chandivade chap_flash_data = dma_alloc_coherent(&ha->pdev->dev, chap_size, 37584549415aSLalit Chandivade &chap_dma, GFP_KERNEL); 37594549415aSLalit Chandivade if (!chap_flash_data) { 37604549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for chap_flash_data\n"); 37614549415aSLalit Chandivade return; 37624549415aSLalit Chandivade } 37634549415aSLalit Chandivade if (is_qla40XX(ha)) 37644549415aSLalit Chandivade offset = FLASH_CHAP_OFFSET; 37654549415aSLalit Chandivade else { 37664549415aSLalit Chandivade offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2); 37674549415aSLalit Chandivade if (ha->port_num == 1) 37684549415aSLalit Chandivade offset += chap_size; 37694549415aSLalit Chandivade } 37704549415aSLalit Chandivade 37714549415aSLalit Chandivade rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size); 37724549415aSLalit Chandivade if (rval != QLA_SUCCESS) 37734549415aSLalit Chandivade goto exit_chap_list; 37744549415aSLalit Chandivade 37754549415aSLalit Chandivade if (ha->chap_list == NULL) 37764549415aSLalit Chandivade ha->chap_list = vmalloc(chap_size); 37774549415aSLalit Chandivade if (ha->chap_list == NULL) { 37784549415aSLalit Chandivade ql4_printk(KERN_ERR, ha, "No memory for ha->chap_list\n"); 37794549415aSLalit Chandivade goto exit_chap_list; 37804549415aSLalit Chandivade } 37814549415aSLalit Chandivade 37824549415aSLalit Chandivade memcpy(ha->chap_list, chap_flash_data, chap_size); 37834549415aSLalit Chandivade 37844549415aSLalit Chandivade exit_chap_list: 37854549415aSLalit Chandivade dma_free_coherent(&ha->pdev->dev, chap_size, 37864549415aSLalit Chandivade chap_flash_data, chap_dma); 378713483730SMike Christie } 378813483730SMike Christie 378913483730SMike Christie static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry, 379013483730SMike Christie struct ql4_tuple_ddb *tddb) 379113483730SMike Christie { 379213483730SMike Christie struct scsi_qla_host *ha; 379313483730SMike Christie struct iscsi_cls_session *cls_sess; 379413483730SMike Christie struct iscsi_cls_conn *cls_conn; 379513483730SMike Christie struct iscsi_session *sess; 379613483730SMike Christie struct iscsi_conn *conn; 379713483730SMike Christie 379813483730SMike Christie DEBUG2(printk(KERN_INFO "Func: %s\n", __func__)); 379913483730SMike Christie ha = ddb_entry->ha; 380013483730SMike Christie cls_sess = ddb_entry->sess; 380113483730SMike Christie sess = cls_sess->dd_data; 380213483730SMike Christie cls_conn = ddb_entry->conn; 380313483730SMike Christie conn = cls_conn->dd_data; 380413483730SMike Christie 380513483730SMike Christie tddb->tpgt = sess->tpgt; 380613483730SMike Christie tddb->port = conn->persistent_port; 380713483730SMike Christie strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE); 380813483730SMike Christie strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN); 380913483730SMike Christie } 381013483730SMike Christie 381113483730SMike Christie static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry, 381213483730SMike Christie struct ql4_tuple_ddb *tddb) 381313483730SMike Christie { 381413483730SMike Christie uint16_t options = 0; 381513483730SMike Christie 381613483730SMike Christie tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp); 381713483730SMike Christie memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0], 381813483730SMike Christie min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name))); 381913483730SMike Christie 382013483730SMike Christie options = le16_to_cpu(fw_ddb_entry->options); 382113483730SMike Christie if (options & DDB_OPT_IPV6_DEVICE) 382213483730SMike Christie sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr); 382313483730SMike Christie else 382413483730SMike Christie sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr); 382513483730SMike Christie 382613483730SMike Christie tddb->port = le16_to_cpu(fw_ddb_entry->port); 382713483730SMike Christie } 382813483730SMike Christie 382913483730SMike Christie static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha, 383013483730SMike Christie struct ql4_tuple_ddb *old_tddb, 383113483730SMike Christie struct ql4_tuple_ddb *new_tddb) 383213483730SMike Christie { 383313483730SMike Christie if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name)) 383413483730SMike Christie return QLA_ERROR; 383513483730SMike Christie 383613483730SMike Christie if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr)) 383713483730SMike Christie return QLA_ERROR; 383813483730SMike Christie 383913483730SMike Christie if (old_tddb->port != new_tddb->port) 384013483730SMike Christie return QLA_ERROR; 384113483730SMike Christie 384213483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 384313483730SMike Christie "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]", 384413483730SMike Christie old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr, 384513483730SMike Christie old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt, 384613483730SMike Christie new_tddb->ip_addr, new_tddb->iscsi_name)); 384713483730SMike Christie 384813483730SMike Christie return QLA_SUCCESS; 384913483730SMike Christie } 385013483730SMike Christie 385113483730SMike Christie static int qla4xxx_is_session_exists(struct scsi_qla_host *ha, 385213483730SMike Christie struct dev_db_entry *fw_ddb_entry) 385313483730SMike Christie { 385413483730SMike Christie struct ddb_entry *ddb_entry; 385513483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 385613483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 385713483730SMike Christie int idx; 385813483730SMike Christie int ret = QLA_ERROR; 385913483730SMike Christie 386013483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 386113483730SMike Christie if (!fw_tddb) { 386213483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 386313483730SMike Christie "Memory Allocation failed.\n")); 386413483730SMike Christie ret = QLA_SUCCESS; 386513483730SMike Christie goto exit_check; 386613483730SMike Christie } 386713483730SMike Christie 386813483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 386913483730SMike Christie if (!tmp_tddb) { 387013483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 387113483730SMike Christie "Memory Allocation failed.\n")); 387213483730SMike Christie ret = QLA_SUCCESS; 387313483730SMike Christie goto exit_check; 387413483730SMike Christie } 387513483730SMike Christie 387613483730SMike Christie qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); 387713483730SMike Christie 387813483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 387913483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 388013483730SMike Christie if (ddb_entry == NULL) 388113483730SMike Christie continue; 388213483730SMike Christie 388313483730SMike Christie qla4xxx_get_param_ddb(ddb_entry, tmp_tddb); 388413483730SMike Christie if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) { 388513483730SMike Christie ret = QLA_SUCCESS; /* found */ 388613483730SMike Christie goto exit_check; 388713483730SMike Christie } 388813483730SMike Christie } 388913483730SMike Christie 389013483730SMike Christie exit_check: 389113483730SMike Christie if (fw_tddb) 389213483730SMike Christie vfree(fw_tddb); 389313483730SMike Christie if (tmp_tddb) 389413483730SMike Christie vfree(tmp_tddb); 389513483730SMike Christie return ret; 389613483730SMike Christie } 389713483730SMike Christie 389813483730SMike Christie static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha, 389913483730SMike Christie struct list_head *list_nt, 390013483730SMike Christie struct dev_db_entry *fw_ddb_entry) 390113483730SMike Christie { 390213483730SMike Christie struct qla_ddb_index *nt_ddb_idx, *nt_ddb_idx_tmp; 390313483730SMike Christie struct ql4_tuple_ddb *fw_tddb = NULL; 390413483730SMike Christie struct ql4_tuple_ddb *tmp_tddb = NULL; 390513483730SMike Christie int ret = QLA_ERROR; 390613483730SMike Christie 390713483730SMike Christie fw_tddb = vzalloc(sizeof(*fw_tddb)); 390813483730SMike Christie if (!fw_tddb) { 390913483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 391013483730SMike Christie "Memory Allocation failed.\n")); 391113483730SMike Christie ret = QLA_SUCCESS; 391213483730SMike Christie goto exit_check; 391313483730SMike Christie } 391413483730SMike Christie 391513483730SMike Christie tmp_tddb = vzalloc(sizeof(*tmp_tddb)); 391613483730SMike Christie if (!tmp_tddb) { 391713483730SMike Christie DEBUG2(ql4_printk(KERN_WARNING, ha, 391813483730SMike Christie "Memory Allocation failed.\n")); 391913483730SMike Christie ret = QLA_SUCCESS; 392013483730SMike Christie goto exit_check; 392113483730SMike Christie } 392213483730SMike Christie 392313483730SMike Christie qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb); 392413483730SMike Christie 392513483730SMike Christie list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) { 392613483730SMike Christie qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb); 392713483730SMike Christie if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) { 392813483730SMike Christie ret = QLA_SUCCESS; /* found */ 392913483730SMike Christie goto exit_check; 393013483730SMike Christie } 393113483730SMike Christie } 393213483730SMike Christie 393313483730SMike Christie exit_check: 393413483730SMike Christie if (fw_tddb) 393513483730SMike Christie vfree(fw_tddb); 393613483730SMike Christie if (tmp_tddb) 393713483730SMike Christie vfree(tmp_tddb); 393813483730SMike Christie return ret; 393913483730SMike Christie } 394013483730SMike Christie 39414a4bc2e9SLalit Chandivade static void qla4xxx_free_ddb_list(struct list_head *list_ddb) 394213483730SMike Christie { 39434a4bc2e9SLalit Chandivade struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 394413483730SMike Christie 39454a4bc2e9SLalit Chandivade list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 39464a4bc2e9SLalit Chandivade list_del_init(&ddb_idx->list); 39474a4bc2e9SLalit Chandivade vfree(ddb_idx); 394813483730SMike Christie } 394913483730SMike Christie } 395013483730SMike Christie 395113483730SMike Christie static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha, 395213483730SMike Christie struct dev_db_entry *fw_ddb_entry) 395313483730SMike Christie { 395413483730SMike Christie struct iscsi_endpoint *ep; 395513483730SMike Christie struct sockaddr_in *addr; 395613483730SMike Christie struct sockaddr_in6 *addr6; 395713483730SMike Christie struct sockaddr *dst_addr; 395813483730SMike Christie char *ip; 395913483730SMike Christie 396013483730SMike Christie /* TODO: need to destroy on unload iscsi_endpoint*/ 396113483730SMike Christie dst_addr = vmalloc(sizeof(*dst_addr)); 396213483730SMike Christie if (!dst_addr) 396313483730SMike Christie return NULL; 396413483730SMike Christie 396513483730SMike Christie if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) { 396613483730SMike Christie dst_addr->sa_family = AF_INET6; 396713483730SMike Christie addr6 = (struct sockaddr_in6 *)dst_addr; 396813483730SMike Christie ip = (char *)&addr6->sin6_addr; 396913483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN); 397013483730SMike Christie addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port)); 397113483730SMike Christie 397213483730SMike Christie } else { 397313483730SMike Christie dst_addr->sa_family = AF_INET; 397413483730SMike Christie addr = (struct sockaddr_in *)dst_addr; 397513483730SMike Christie ip = (char *)&addr->sin_addr; 397613483730SMike Christie memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN); 397713483730SMike Christie addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port)); 397813483730SMike Christie } 397913483730SMike Christie 398013483730SMike Christie ep = qla4xxx_ep_connect(ha->host, dst_addr, 0); 398113483730SMike Christie vfree(dst_addr); 398213483730SMike Christie return ep; 398313483730SMike Christie } 398413483730SMike Christie 398513483730SMike Christie static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx) 398613483730SMike Christie { 398713483730SMike Christie if (ql4xdisablesysfsboot) 398813483730SMike Christie return QLA_SUCCESS; 398913483730SMike Christie if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx) 399013483730SMike Christie return QLA_ERROR; 399113483730SMike Christie return QLA_SUCCESS; 399213483730SMike Christie } 399313483730SMike Christie 399413483730SMike Christie static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha, 399513483730SMike Christie struct ddb_entry *ddb_entry) 399613483730SMike Christie { 3997c28eaacaSNilesh Javali uint16_t def_timeout; 3998c28eaacaSNilesh Javali 399913483730SMike Christie ddb_entry->ddb_type = FLASH_DDB; 400013483730SMike Christie ddb_entry->fw_ddb_index = INVALID_ENTRY; 400113483730SMike Christie ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE; 400213483730SMike Christie ddb_entry->ha = ha; 400313483730SMike Christie ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb; 400413483730SMike Christie ddb_entry->ddb_change = qla4xxx_flash_ddb_change; 400513483730SMike Christie 400613483730SMike Christie atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); 400713483730SMike Christie atomic_set(&ddb_entry->relogin_timer, 0); 400813483730SMike Christie atomic_set(&ddb_entry->relogin_retry_count, 0); 4009c28eaacaSNilesh Javali def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout); 401013483730SMike Christie ddb_entry->default_relogin_timeout = 4011c28eaacaSNilesh Javali (def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ? 4012c28eaacaSNilesh Javali def_timeout : LOGIN_TOV; 401313483730SMike Christie ddb_entry->default_time2wait = 401413483730SMike Christie le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait); 401513483730SMike Christie } 401613483730SMike Christie 401713483730SMike Christie static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha) 401813483730SMike Christie { 401913483730SMike Christie uint32_t idx = 0; 402013483730SMike Christie uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */ 402113483730SMike Christie uint32_t sts[MBOX_REG_COUNT]; 402213483730SMike Christie uint32_t ip_state; 402313483730SMike Christie unsigned long wtime; 402413483730SMike Christie int ret; 402513483730SMike Christie 402613483730SMike Christie wtime = jiffies + (HZ * IP_CONFIG_TOV); 402713483730SMike Christie do { 402813483730SMike Christie for (idx = 0; idx < IP_ADDR_COUNT; idx++) { 402913483730SMike Christie if (ip_idx[idx] == -1) 403013483730SMike Christie continue; 403113483730SMike Christie 403213483730SMike Christie ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts); 403313483730SMike Christie 403413483730SMike Christie if (ret == QLA_ERROR) { 403513483730SMike Christie ip_idx[idx] = -1; 403613483730SMike Christie continue; 403713483730SMike Christie } 403813483730SMike Christie 403913483730SMike Christie ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT; 404013483730SMike Christie 404113483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 404213483730SMike Christie "Waiting for IP state for idx = %d, state = 0x%x\n", 404313483730SMike Christie ip_idx[idx], ip_state)); 404413483730SMike Christie if (ip_state == IP_ADDRSTATE_UNCONFIGURED || 404513483730SMike Christie ip_state == IP_ADDRSTATE_INVALID || 404613483730SMike Christie ip_state == IP_ADDRSTATE_PREFERRED || 404713483730SMike Christie ip_state == IP_ADDRSTATE_DEPRICATED || 404813483730SMike Christie ip_state == IP_ADDRSTATE_DISABLING) 404913483730SMike Christie ip_idx[idx] = -1; 405013483730SMike Christie } 405113483730SMike Christie 405213483730SMike Christie /* Break if all IP states checked */ 405313483730SMike Christie if ((ip_idx[0] == -1) && 405413483730SMike Christie (ip_idx[1] == -1) && 405513483730SMike Christie (ip_idx[2] == -1) && 405613483730SMike Christie (ip_idx[3] == -1)) 405713483730SMike Christie break; 405813483730SMike Christie schedule_timeout_uninterruptible(HZ); 405913483730SMike Christie } while (time_after(wtime, jiffies)); 406013483730SMike Christie } 406113483730SMike Christie 40624a4bc2e9SLalit Chandivade static void qla4xxx_build_st_list(struct scsi_qla_host *ha, 40634a4bc2e9SLalit Chandivade struct list_head *list_st) 406413483730SMike Christie { 40654a4bc2e9SLalit Chandivade struct qla_ddb_index *st_ddb_idx; 406613483730SMike Christie int max_ddbs; 40674a4bc2e9SLalit Chandivade int fw_idx_size; 40684a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry; 40694a4bc2e9SLalit Chandivade dma_addr_t fw_ddb_dma; 407013483730SMike Christie int ret; 407113483730SMike Christie uint32_t idx = 0, next_idx = 0; 407213483730SMike Christie uint32_t state = 0, conn_err = 0; 40734a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 407413483730SMike Christie 407513483730SMike Christie fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 407613483730SMike Christie &fw_ddb_dma); 407713483730SMike Christie if (fw_ddb_entry == NULL) { 407813483730SMike Christie DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 40794a4bc2e9SLalit Chandivade goto exit_st_list; 408013483730SMike Christie } 408113483730SMike Christie 40824a4bc2e9SLalit Chandivade max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 40834a4bc2e9SLalit Chandivade MAX_DEV_DB_ENTRIES; 408413483730SMike Christie fw_idx_size = sizeof(struct qla_ddb_index); 408513483730SMike Christie 408613483730SMike Christie for (idx = 0; idx < max_ddbs; idx = next_idx) { 40874a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 40884a4bc2e9SLalit Chandivade NULL, &next_idx, &state, 40894a4bc2e9SLalit Chandivade &conn_err, NULL, &conn_id); 409013483730SMike Christie if (ret == QLA_ERROR) 409113483730SMike Christie break; 409213483730SMike Christie 409313483730SMike Christie /* Check if ST, add to the list_st */ 409413483730SMike Christie if (strlen((char *) fw_ddb_entry->iscsi_name) != 0) 409513483730SMike Christie goto continue_next_st; 409613483730SMike Christie 409713483730SMike Christie st_ddb_idx = vzalloc(fw_idx_size); 409813483730SMike Christie if (!st_ddb_idx) 409913483730SMike Christie break; 410013483730SMike Christie 410113483730SMike Christie st_ddb_idx->fw_ddb_idx = idx; 410213483730SMike Christie 41034a4bc2e9SLalit Chandivade list_add_tail(&st_ddb_idx->list, list_st); 410413483730SMike Christie continue_next_st: 410513483730SMike Christie if (next_idx == 0) 410613483730SMike Christie break; 410713483730SMike Christie } 410813483730SMike Christie 41094a4bc2e9SLalit Chandivade exit_st_list: 41104a4bc2e9SLalit Chandivade if (fw_ddb_entry) 41114a4bc2e9SLalit Chandivade dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 41124a4bc2e9SLalit Chandivade } 41134a4bc2e9SLalit Chandivade 41144a4bc2e9SLalit Chandivade /** 41154a4bc2e9SLalit Chandivade * qla4xxx_remove_failed_ddb - Remove inactive or failed ddb from list 41164a4bc2e9SLalit Chandivade * @ha: pointer to adapter structure 41174a4bc2e9SLalit Chandivade * @list_ddb: List from which failed ddb to be removed 41184a4bc2e9SLalit Chandivade * 41194a4bc2e9SLalit Chandivade * Iterate over the list of DDBs and find and remove DDBs that are either in 41204a4bc2e9SLalit Chandivade * no connection active state or failed state 41214a4bc2e9SLalit Chandivade **/ 41224a4bc2e9SLalit Chandivade static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha, 41234a4bc2e9SLalit Chandivade struct list_head *list_ddb) 41244a4bc2e9SLalit Chandivade { 41254a4bc2e9SLalit Chandivade struct qla_ddb_index *ddb_idx, *ddb_idx_tmp; 41264a4bc2e9SLalit Chandivade uint32_t next_idx = 0; 41274a4bc2e9SLalit Chandivade uint32_t state = 0, conn_err = 0; 41284a4bc2e9SLalit Chandivade int ret; 41294a4bc2e9SLalit Chandivade 41304a4bc2e9SLalit Chandivade list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) { 41314a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, ddb_idx->fw_ddb_idx, 41324a4bc2e9SLalit Chandivade NULL, 0, NULL, &next_idx, &state, 41334a4bc2e9SLalit Chandivade &conn_err, NULL, NULL); 41344a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 41354a4bc2e9SLalit Chandivade continue; 41364a4bc2e9SLalit Chandivade 41374a4bc2e9SLalit Chandivade if (state == DDB_DS_NO_CONNECTION_ACTIVE || 41384a4bc2e9SLalit Chandivade state == DDB_DS_SESSION_FAILED) { 41394a4bc2e9SLalit Chandivade list_del_init(&ddb_idx->list); 41404a4bc2e9SLalit Chandivade vfree(ddb_idx); 41414a4bc2e9SLalit Chandivade } 41424a4bc2e9SLalit Chandivade } 41434a4bc2e9SLalit Chandivade } 41444a4bc2e9SLalit Chandivade 41454a4bc2e9SLalit Chandivade static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha, 41464a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry, 41474a4bc2e9SLalit Chandivade int is_reset) 41484a4bc2e9SLalit Chandivade { 41494a4bc2e9SLalit Chandivade struct iscsi_cls_session *cls_sess; 41504a4bc2e9SLalit Chandivade struct iscsi_session *sess; 41514a4bc2e9SLalit Chandivade struct iscsi_cls_conn *cls_conn; 41524a4bc2e9SLalit Chandivade struct iscsi_endpoint *ep; 41534a4bc2e9SLalit Chandivade uint16_t cmds_max = 32; 41544a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 41554a4bc2e9SLalit Chandivade uint32_t initial_cmdsn = 0; 41564a4bc2e9SLalit Chandivade int ret = QLA_SUCCESS; 41574a4bc2e9SLalit Chandivade 41584a4bc2e9SLalit Chandivade struct ddb_entry *ddb_entry = NULL; 41594a4bc2e9SLalit Chandivade 41604a4bc2e9SLalit Chandivade /* Create session object, with INVALID_ENTRY, 41614a4bc2e9SLalit Chandivade * the targer_id would get set when we issue the login 41624a4bc2e9SLalit Chandivade */ 41634a4bc2e9SLalit Chandivade cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, ha->host, 41644a4bc2e9SLalit Chandivade cmds_max, sizeof(struct ddb_entry), 41654a4bc2e9SLalit Chandivade sizeof(struct ql4_task_data), 41664a4bc2e9SLalit Chandivade initial_cmdsn, INVALID_ENTRY); 41674a4bc2e9SLalit Chandivade if (!cls_sess) { 41684a4bc2e9SLalit Chandivade ret = QLA_ERROR; 41694a4bc2e9SLalit Chandivade goto exit_setup; 41704a4bc2e9SLalit Chandivade } 41714a4bc2e9SLalit Chandivade 41724a4bc2e9SLalit Chandivade /* 41734a4bc2e9SLalit Chandivade * so calling module_put function to decrement the 41744a4bc2e9SLalit Chandivade * reference count. 41754a4bc2e9SLalit Chandivade **/ 41764a4bc2e9SLalit Chandivade module_put(qla4xxx_iscsi_transport.owner); 41774a4bc2e9SLalit Chandivade sess = cls_sess->dd_data; 41784a4bc2e9SLalit Chandivade ddb_entry = sess->dd_data; 41794a4bc2e9SLalit Chandivade ddb_entry->sess = cls_sess; 41804a4bc2e9SLalit Chandivade 41814a4bc2e9SLalit Chandivade cls_sess->recovery_tmo = ql4xsess_recovery_tmo; 41824a4bc2e9SLalit Chandivade memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry, 41834a4bc2e9SLalit Chandivade sizeof(struct dev_db_entry)); 41844a4bc2e9SLalit Chandivade 41854a4bc2e9SLalit Chandivade qla4xxx_setup_flash_ddb_entry(ha, ddb_entry); 41864a4bc2e9SLalit Chandivade 41874a4bc2e9SLalit Chandivade cls_conn = iscsi_conn_setup(cls_sess, sizeof(struct qla_conn), conn_id); 41884a4bc2e9SLalit Chandivade 41894a4bc2e9SLalit Chandivade if (!cls_conn) { 41904a4bc2e9SLalit Chandivade ret = QLA_ERROR; 41914a4bc2e9SLalit Chandivade goto exit_setup; 41924a4bc2e9SLalit Chandivade } 41934a4bc2e9SLalit Chandivade 41944a4bc2e9SLalit Chandivade ddb_entry->conn = cls_conn; 41954a4bc2e9SLalit Chandivade 41964a4bc2e9SLalit Chandivade /* Setup ep, for displaying attributes in sysfs */ 41974a4bc2e9SLalit Chandivade ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry); 41984a4bc2e9SLalit Chandivade if (ep) { 41994a4bc2e9SLalit Chandivade ep->conn = cls_conn; 42004a4bc2e9SLalit Chandivade cls_conn->ep = ep; 42014a4bc2e9SLalit Chandivade } else { 42024a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_ERR, ha, "Unable to get ep\n")); 42034a4bc2e9SLalit Chandivade ret = QLA_ERROR; 42044a4bc2e9SLalit Chandivade goto exit_setup; 42054a4bc2e9SLalit Chandivade } 42064a4bc2e9SLalit Chandivade 42074a4bc2e9SLalit Chandivade /* Update sess/conn params */ 42084a4bc2e9SLalit Chandivade qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn); 42094a4bc2e9SLalit Chandivade 42104a4bc2e9SLalit Chandivade if (is_reset == RESET_ADAPTER) { 42114a4bc2e9SLalit Chandivade iscsi_block_session(cls_sess); 42124a4bc2e9SLalit Chandivade /* Use the relogin path to discover new devices 42134a4bc2e9SLalit Chandivade * by short-circuting the logic of setting 42144a4bc2e9SLalit Chandivade * timer to relogin - instead set the flags 42154a4bc2e9SLalit Chandivade * to initiate login right away. 42164a4bc2e9SLalit Chandivade */ 42174a4bc2e9SLalit Chandivade set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags); 42184a4bc2e9SLalit Chandivade set_bit(DF_RELOGIN, &ddb_entry->flags); 42194a4bc2e9SLalit Chandivade } 42204a4bc2e9SLalit Chandivade 42214a4bc2e9SLalit Chandivade exit_setup: 42224a4bc2e9SLalit Chandivade return ret; 42234a4bc2e9SLalit Chandivade } 42244a4bc2e9SLalit Chandivade 42254a4bc2e9SLalit Chandivade static void qla4xxx_build_nt_list(struct scsi_qla_host *ha, 42264a4bc2e9SLalit Chandivade struct list_head *list_nt, int is_reset) 42274a4bc2e9SLalit Chandivade { 42284a4bc2e9SLalit Chandivade struct dev_db_entry *fw_ddb_entry; 42294a4bc2e9SLalit Chandivade dma_addr_t fw_ddb_dma; 42304a4bc2e9SLalit Chandivade int max_ddbs; 42314a4bc2e9SLalit Chandivade int fw_idx_size; 42324a4bc2e9SLalit Chandivade int ret; 42334a4bc2e9SLalit Chandivade uint32_t idx = 0, next_idx = 0; 42344a4bc2e9SLalit Chandivade uint32_t state = 0, conn_err = 0; 42354a4bc2e9SLalit Chandivade uint16_t conn_id = 0; 42364a4bc2e9SLalit Chandivade struct qla_ddb_index *nt_ddb_idx; 42374a4bc2e9SLalit Chandivade 42384a4bc2e9SLalit Chandivade fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL, 42394a4bc2e9SLalit Chandivade &fw_ddb_dma); 42404a4bc2e9SLalit Chandivade if (fw_ddb_entry == NULL) { 42414a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n")); 42424a4bc2e9SLalit Chandivade goto exit_nt_list; 42434a4bc2e9SLalit Chandivade } 42444a4bc2e9SLalit Chandivade max_ddbs = is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX : 42454a4bc2e9SLalit Chandivade MAX_DEV_DB_ENTRIES; 42464a4bc2e9SLalit Chandivade fw_idx_size = sizeof(struct qla_ddb_index); 42474a4bc2e9SLalit Chandivade 42484a4bc2e9SLalit Chandivade for (idx = 0; idx < max_ddbs; idx = next_idx) { 42494a4bc2e9SLalit Chandivade ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry, fw_ddb_dma, 42504a4bc2e9SLalit Chandivade NULL, &next_idx, &state, 42514a4bc2e9SLalit Chandivade &conn_err, NULL, &conn_id); 42524a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 42534a4bc2e9SLalit Chandivade break; 42544a4bc2e9SLalit Chandivade 42554a4bc2e9SLalit Chandivade if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS) 42564a4bc2e9SLalit Chandivade goto continue_next_nt; 42574a4bc2e9SLalit Chandivade 42584a4bc2e9SLalit Chandivade /* Check if NT, then add to list it */ 42594a4bc2e9SLalit Chandivade if (strlen((char *) fw_ddb_entry->iscsi_name) == 0) 42604a4bc2e9SLalit Chandivade goto continue_next_nt; 42614a4bc2e9SLalit Chandivade 42624a4bc2e9SLalit Chandivade if (!(state == DDB_DS_NO_CONNECTION_ACTIVE || 42634a4bc2e9SLalit Chandivade state == DDB_DS_SESSION_FAILED)) 42644a4bc2e9SLalit Chandivade goto continue_next_nt; 42654a4bc2e9SLalit Chandivade 42664a4bc2e9SLalit Chandivade DEBUG2(ql4_printk(KERN_INFO, ha, 42674a4bc2e9SLalit Chandivade "Adding DDB to session = 0x%x\n", idx)); 42684a4bc2e9SLalit Chandivade if (is_reset == INIT_ADAPTER) { 42694a4bc2e9SLalit Chandivade nt_ddb_idx = vmalloc(fw_idx_size); 42704a4bc2e9SLalit Chandivade if (!nt_ddb_idx) 42714a4bc2e9SLalit Chandivade break; 42724a4bc2e9SLalit Chandivade 42734a4bc2e9SLalit Chandivade nt_ddb_idx->fw_ddb_idx = idx; 42744a4bc2e9SLalit Chandivade 42754a4bc2e9SLalit Chandivade memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry, 42764a4bc2e9SLalit Chandivade sizeof(struct dev_db_entry)); 42774a4bc2e9SLalit Chandivade 42784a4bc2e9SLalit Chandivade if (qla4xxx_is_flash_ddb_exists(ha, list_nt, 42794a4bc2e9SLalit Chandivade fw_ddb_entry) == QLA_SUCCESS) { 42804a4bc2e9SLalit Chandivade vfree(nt_ddb_idx); 42814a4bc2e9SLalit Chandivade goto continue_next_nt; 42824a4bc2e9SLalit Chandivade } 42834a4bc2e9SLalit Chandivade list_add_tail(&nt_ddb_idx->list, list_nt); 42844a4bc2e9SLalit Chandivade } else if (is_reset == RESET_ADAPTER) { 42854a4bc2e9SLalit Chandivade if (qla4xxx_is_session_exists(ha, fw_ddb_entry) == 42864a4bc2e9SLalit Chandivade QLA_SUCCESS) 42874a4bc2e9SLalit Chandivade goto continue_next_nt; 42884a4bc2e9SLalit Chandivade } 42894a4bc2e9SLalit Chandivade 42904a4bc2e9SLalit Chandivade ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset); 42914a4bc2e9SLalit Chandivade if (ret == QLA_ERROR) 42924a4bc2e9SLalit Chandivade goto exit_nt_list; 42934a4bc2e9SLalit Chandivade 42944a4bc2e9SLalit Chandivade continue_next_nt: 42954a4bc2e9SLalit Chandivade if (next_idx == 0) 42964a4bc2e9SLalit Chandivade break; 42974a4bc2e9SLalit Chandivade } 42984a4bc2e9SLalit Chandivade 42994a4bc2e9SLalit Chandivade exit_nt_list: 43004a4bc2e9SLalit Chandivade if (fw_ddb_entry) 43014a4bc2e9SLalit Chandivade dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma); 43024a4bc2e9SLalit Chandivade } 43034a4bc2e9SLalit Chandivade 43044a4bc2e9SLalit Chandivade /** 43054a4bc2e9SLalit Chandivade * qla4xxx_build_ddb_list - Build ddb list and setup sessions 43064a4bc2e9SLalit Chandivade * @ha: pointer to adapter structure 43074a4bc2e9SLalit Chandivade * @is_reset: Is this init path or reset path 43084a4bc2e9SLalit Chandivade * 43094a4bc2e9SLalit Chandivade * Create a list of sendtargets (st) from firmware DDBs, issue send targets 43104a4bc2e9SLalit Chandivade * using connection open, then create the list of normal targets (nt) 43114a4bc2e9SLalit Chandivade * from firmware DDBs. Based on the list of nt setup session and connection 43124a4bc2e9SLalit Chandivade * objects. 43134a4bc2e9SLalit Chandivade **/ 43144a4bc2e9SLalit Chandivade void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset) 43154a4bc2e9SLalit Chandivade { 43164a4bc2e9SLalit Chandivade uint16_t tmo = 0; 43174a4bc2e9SLalit Chandivade struct list_head list_st, list_nt; 43184a4bc2e9SLalit Chandivade struct qla_ddb_index *st_ddb_idx, *st_ddb_idx_tmp; 43194a4bc2e9SLalit Chandivade unsigned long wtime; 43204a4bc2e9SLalit Chandivade 43214a4bc2e9SLalit Chandivade if (!test_bit(AF_LINK_UP, &ha->flags)) { 43224a4bc2e9SLalit Chandivade set_bit(AF_BUILD_DDB_LIST, &ha->flags); 43234a4bc2e9SLalit Chandivade ha->is_reset = is_reset; 43244a4bc2e9SLalit Chandivade return; 43254a4bc2e9SLalit Chandivade } 43264a4bc2e9SLalit Chandivade 43274a4bc2e9SLalit Chandivade INIT_LIST_HEAD(&list_st); 43284a4bc2e9SLalit Chandivade INIT_LIST_HEAD(&list_nt); 43294a4bc2e9SLalit Chandivade 43304a4bc2e9SLalit Chandivade qla4xxx_build_st_list(ha, &list_st); 43314a4bc2e9SLalit Chandivade 433213483730SMike Christie /* Before issuing conn open mbox, ensure all IPs states are configured 433313483730SMike Christie * Note, conn open fails if IPs are not configured 433413483730SMike Christie */ 433513483730SMike Christie qla4xxx_wait_for_ip_configuration(ha); 433613483730SMike Christie 433713483730SMike Christie /* Go thru the STs and fire the sendtargets by issuing conn open mbx */ 433813483730SMike Christie list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) { 433913483730SMike Christie qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx); 434013483730SMike Christie } 434113483730SMike Christie 434213483730SMike Christie /* Wait to ensure all sendtargets are done for min 12 sec wait */ 4343c28eaacaSNilesh Javali tmo = ((ha->def_timeout > LOGIN_TOV) && 4344c28eaacaSNilesh Javali (ha->def_timeout < LOGIN_TOV * 10) ? 4345c28eaacaSNilesh Javali ha->def_timeout : LOGIN_TOV); 4346c28eaacaSNilesh Javali 434713483730SMike Christie DEBUG2(ql4_printk(KERN_INFO, ha, 434813483730SMike Christie "Default time to wait for build ddb %d\n", tmo)); 434913483730SMike Christie 435013483730SMike Christie wtime = jiffies + (HZ * tmo); 435113483730SMike Christie do { 4352f1f2e60eSNilesh Javali if (list_empty(&list_st)) 4353f1f2e60eSNilesh Javali break; 4354f1f2e60eSNilesh Javali 43554a4bc2e9SLalit Chandivade qla4xxx_remove_failed_ddb(ha, &list_st); 435613483730SMike Christie schedule_timeout_uninterruptible(HZ / 10); 435713483730SMike Christie } while (time_after(wtime, jiffies)); 435813483730SMike Christie 435913483730SMike Christie /* Free up the sendtargets list */ 43604a4bc2e9SLalit Chandivade qla4xxx_free_ddb_list(&list_st); 436113483730SMike Christie 43624a4bc2e9SLalit Chandivade qla4xxx_build_nt_list(ha, &list_nt, is_reset); 436313483730SMike Christie 43644a4bc2e9SLalit Chandivade qla4xxx_free_ddb_list(&list_nt); 436513483730SMike Christie 436613483730SMike Christie qla4xxx_free_ddb_index(ha); 436713483730SMike Christie } 436813483730SMike Christie 4369afaf5a2dSDavid Somayajulu /** 4370afaf5a2dSDavid Somayajulu * qla4xxx_probe_adapter - callback function to probe HBA 4371afaf5a2dSDavid Somayajulu * @pdev: pointer to pci_dev structure 4372afaf5a2dSDavid Somayajulu * @pci_device_id: pointer to pci_device entry 4373afaf5a2dSDavid Somayajulu * 4374afaf5a2dSDavid Somayajulu * This routine will probe for Qlogic 4xxx iSCSI host adapters. 4375afaf5a2dSDavid Somayajulu * It returns zero if successful. It also initializes all data necessary for 4376afaf5a2dSDavid Somayajulu * the driver. 4377afaf5a2dSDavid Somayajulu **/ 4378afaf5a2dSDavid Somayajulu static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev, 4379afaf5a2dSDavid Somayajulu const struct pci_device_id *ent) 4380afaf5a2dSDavid Somayajulu { 4381afaf5a2dSDavid Somayajulu int ret = -ENODEV, status; 4382afaf5a2dSDavid Somayajulu struct Scsi_Host *host; 4383afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 4384afaf5a2dSDavid Somayajulu uint8_t init_retry_count = 0; 4385afaf5a2dSDavid Somayajulu char buf[34]; 4386f4f5df23SVikas Chaudhary struct qla4_8xxx_legacy_intr_set *nx_legacy_intr; 4387f9880e76SPrasanna Mumbai uint32_t dev_state; 4388afaf5a2dSDavid Somayajulu 4389afaf5a2dSDavid Somayajulu if (pci_enable_device(pdev)) 4390afaf5a2dSDavid Somayajulu return -1; 4391afaf5a2dSDavid Somayajulu 4392b3a271a9SManish Rangankar host = iscsi_host_alloc(&qla4xxx_driver_template, sizeof(*ha), 0); 4393afaf5a2dSDavid Somayajulu if (host == NULL) { 4394afaf5a2dSDavid Somayajulu printk(KERN_WARNING 4395afaf5a2dSDavid Somayajulu "qla4xxx: Couldn't allocate host from scsi layer!\n"); 4396afaf5a2dSDavid Somayajulu goto probe_disable_device; 4397afaf5a2dSDavid Somayajulu } 4398afaf5a2dSDavid Somayajulu 4399afaf5a2dSDavid Somayajulu /* Clear our data area */ 4400b3a271a9SManish Rangankar ha = to_qla_host(host); 4401afaf5a2dSDavid Somayajulu memset(ha, 0, sizeof(*ha)); 4402afaf5a2dSDavid Somayajulu 4403afaf5a2dSDavid Somayajulu /* Save the information from PCI BIOS. */ 4404afaf5a2dSDavid Somayajulu ha->pdev = pdev; 4405afaf5a2dSDavid Somayajulu ha->host = host; 4406afaf5a2dSDavid Somayajulu ha->host_no = host->host_no; 4407afaf5a2dSDavid Somayajulu 44082232be0dSLalit Chandivade pci_enable_pcie_error_reporting(pdev); 44092232be0dSLalit Chandivade 4410f4f5df23SVikas Chaudhary /* Setup Runtime configurable options */ 4411f4f5df23SVikas Chaudhary if (is_qla8022(ha)) { 4412f4f5df23SVikas Chaudhary ha->isp_ops = &qla4_8xxx_isp_ops; 4413f4f5df23SVikas Chaudhary rwlock_init(&ha->hw_lock); 4414f4f5df23SVikas Chaudhary ha->qdr_sn_window = -1; 4415f4f5df23SVikas Chaudhary ha->ddr_mn_window = -1; 4416f4f5df23SVikas Chaudhary ha->curr_window = 255; 4417f4f5df23SVikas Chaudhary ha->func_num = PCI_FUNC(ha->pdev->devfn); 4418f4f5df23SVikas Chaudhary nx_legacy_intr = &legacy_intr[ha->func_num]; 4419f4f5df23SVikas Chaudhary ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit; 4420f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_status_reg = 4421f4f5df23SVikas Chaudhary nx_legacy_intr->tgt_status_reg; 4422f4f5df23SVikas Chaudhary ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg; 4423f4f5df23SVikas Chaudhary ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg; 4424f4f5df23SVikas Chaudhary } else { 4425f4f5df23SVikas Chaudhary ha->isp_ops = &qla4xxx_isp_ops; 4426f4f5df23SVikas Chaudhary } 4427f4f5df23SVikas Chaudhary 44282232be0dSLalit Chandivade /* Set EEH reset type to fundamental if required by hba */ 44292232be0dSLalit Chandivade if (is_qla8022(ha)) 44302232be0dSLalit Chandivade pdev->needs_freset = 1; 44312232be0dSLalit Chandivade 4432afaf5a2dSDavid Somayajulu /* Configure PCI I/O space. */ 4433f4f5df23SVikas Chaudhary ret = ha->isp_ops->iospace_config(ha); 4434afaf5a2dSDavid Somayajulu if (ret) 4435f4f5df23SVikas Chaudhary goto probe_failed_ioconfig; 4436afaf5a2dSDavid Somayajulu 4437c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "Found an ISP%04x, irq %d, iobase 0x%p\n", 4438afaf5a2dSDavid Somayajulu pdev->device, pdev->irq, ha->reg); 4439afaf5a2dSDavid Somayajulu 4440afaf5a2dSDavid Somayajulu qla4xxx_config_dma_addressing(ha); 4441afaf5a2dSDavid Somayajulu 4442afaf5a2dSDavid Somayajulu /* Initialize lists and spinlocks. */ 4443afaf5a2dSDavid Somayajulu INIT_LIST_HEAD(&ha->free_srb_q); 4444afaf5a2dSDavid Somayajulu 4445afaf5a2dSDavid Somayajulu mutex_init(&ha->mbox_sem); 44464549415aSLalit Chandivade mutex_init(&ha->chap_sem); 4447f4f5df23SVikas Chaudhary init_completion(&ha->mbx_intr_comp); 444895d31262SVikas Chaudhary init_completion(&ha->disable_acb_comp); 4449afaf5a2dSDavid Somayajulu 4450afaf5a2dSDavid Somayajulu spin_lock_init(&ha->hardware_lock); 4451afaf5a2dSDavid Somayajulu 4452afaf5a2dSDavid Somayajulu /* Allocate dma buffers */ 4453afaf5a2dSDavid Somayajulu if (qla4xxx_mem_alloc(ha)) { 4454c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, 4455afaf5a2dSDavid Somayajulu "[ERROR] Failed to allocate memory for adapter\n"); 4456afaf5a2dSDavid Somayajulu 4457afaf5a2dSDavid Somayajulu ret = -ENOMEM; 4458afaf5a2dSDavid Somayajulu goto probe_failed; 4459afaf5a2dSDavid Somayajulu } 4460afaf5a2dSDavid Somayajulu 4461b3a271a9SManish Rangankar host->cmd_per_lun = 3; 4462b3a271a9SManish Rangankar host->max_channel = 0; 4463b3a271a9SManish Rangankar host->max_lun = MAX_LUNS - 1; 4464b3a271a9SManish Rangankar host->max_id = MAX_TARGETS; 4465b3a271a9SManish Rangankar host->max_cmd_len = IOCB_MAX_CDB_LEN; 4466b3a271a9SManish Rangankar host->can_queue = MAX_SRBS ; 4467b3a271a9SManish Rangankar host->transportt = qla4xxx_scsi_transport; 4468b3a271a9SManish Rangankar 4469b3a271a9SManish Rangankar ret = scsi_init_shared_tag_map(host, MAX_SRBS); 4470b3a271a9SManish Rangankar if (ret) { 4471b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, 4472b3a271a9SManish Rangankar "%s: scsi_init_shared_tag_map failed\n", __func__); 4473b3a271a9SManish Rangankar goto probe_failed; 4474b3a271a9SManish Rangankar } 4475b3a271a9SManish Rangankar 4476b3a271a9SManish Rangankar pci_set_drvdata(pdev, ha); 4477b3a271a9SManish Rangankar 4478b3a271a9SManish Rangankar ret = scsi_add_host(host, &pdev->dev); 4479b3a271a9SManish Rangankar if (ret) 4480b3a271a9SManish Rangankar goto probe_failed; 4481b3a271a9SManish Rangankar 4482f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 4483f4f5df23SVikas Chaudhary (void) qla4_8xxx_get_flash_info(ha); 4484f4f5df23SVikas Chaudhary 4485afaf5a2dSDavid Somayajulu /* 4486afaf5a2dSDavid Somayajulu * Initialize the Host adapter request/response queues and 4487afaf5a2dSDavid Somayajulu * firmware 4488afaf5a2dSDavid Somayajulu * NOTE: interrupts enabled upon successful completion 4489afaf5a2dSDavid Somayajulu */ 449013483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 4491f4f5df23SVikas Chaudhary while ((!test_bit(AF_ONLINE, &ha->flags)) && 4492f4f5df23SVikas Chaudhary init_retry_count++ < MAX_INIT_RETRIES) { 4493f9880e76SPrasanna Mumbai 4494f9880e76SPrasanna Mumbai if (is_qla8022(ha)) { 4495f9880e76SPrasanna Mumbai qla4_8xxx_idc_lock(ha); 4496f9880e76SPrasanna Mumbai dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); 4497f9880e76SPrasanna Mumbai qla4_8xxx_idc_unlock(ha); 4498f9880e76SPrasanna Mumbai if (dev_state == QLA82XX_DEV_FAILED) { 4499f9880e76SPrasanna Mumbai ql4_printk(KERN_WARNING, ha, "%s: don't retry " 4500f9880e76SPrasanna Mumbai "initialize adapter. H/W is in failed state\n", 4501f9880e76SPrasanna Mumbai __func__); 4502f9880e76SPrasanna Mumbai break; 4503f9880e76SPrasanna Mumbai } 4504f9880e76SPrasanna Mumbai } 4505afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: retrying adapter initialization " 4506afaf5a2dSDavid Somayajulu "(%d)\n", __func__, init_retry_count)); 4507f4f5df23SVikas Chaudhary 4508f4f5df23SVikas Chaudhary if (ha->isp_ops->reset_chip(ha) == QLA_ERROR) 4509f4f5df23SVikas Chaudhary continue; 4510f4f5df23SVikas Chaudhary 451113483730SMike Christie status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER); 4512afaf5a2dSDavid Somayajulu } 4513f4f5df23SVikas Chaudhary 4514f4f5df23SVikas Chaudhary if (!test_bit(AF_ONLINE, &ha->flags)) { 4515c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n"); 4516afaf5a2dSDavid Somayajulu 4517fe998527SLalit Chandivade if (is_qla8022(ha) && ql4xdontresethba) { 4518fe998527SLalit Chandivade /* Put the device in failed state. */ 4519fe998527SLalit Chandivade DEBUG2(printk(KERN_ERR "HW STATE: FAILED\n")); 4520fe998527SLalit Chandivade qla4_8xxx_idc_lock(ha); 4521fe998527SLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 4522fe998527SLalit Chandivade QLA82XX_DEV_FAILED); 4523fe998527SLalit Chandivade qla4_8xxx_idc_unlock(ha); 4524fe998527SLalit Chandivade } 4525afaf5a2dSDavid Somayajulu ret = -ENODEV; 4526b3a271a9SManish Rangankar goto remove_host; 4527afaf5a2dSDavid Somayajulu } 4528afaf5a2dSDavid Somayajulu 4529afaf5a2dSDavid Somayajulu /* Startup the kernel thread for this host adapter. */ 4530afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi: %s: Starting kernel thread for " 4531afaf5a2dSDavid Somayajulu "qla4xxx_dpc\n", __func__)); 4532afaf5a2dSDavid Somayajulu sprintf(buf, "qla4xxx_%lu_dpc", ha->host_no); 4533afaf5a2dSDavid Somayajulu ha->dpc_thread = create_singlethread_workqueue(buf); 4534afaf5a2dSDavid Somayajulu if (!ha->dpc_thread) { 4535c2660df3SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n"); 4536afaf5a2dSDavid Somayajulu ret = -ENODEV; 4537b3a271a9SManish Rangankar goto remove_host; 4538afaf5a2dSDavid Somayajulu } 4539c4028958SDavid Howells INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc); 4540afaf5a2dSDavid Somayajulu 4541b3a271a9SManish Rangankar sprintf(buf, "qla4xxx_%lu_task", ha->host_no); 4542b3a271a9SManish Rangankar ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1); 4543b3a271a9SManish Rangankar if (!ha->task_wq) { 4544b3a271a9SManish Rangankar ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n"); 4545b3a271a9SManish Rangankar ret = -ENODEV; 4546b3a271a9SManish Rangankar goto remove_host; 4547b3a271a9SManish Rangankar } 4548b3a271a9SManish Rangankar 4549f4f5df23SVikas Chaudhary /* For ISP-82XX, request_irqs is called in qla4_8xxx_load_risc 4550f4f5df23SVikas Chaudhary * (which is called indirectly by qla4xxx_initialize_adapter), 4551f4f5df23SVikas Chaudhary * so that irqs will be registered after crbinit but before 4552f4f5df23SVikas Chaudhary * mbx_intr_enable. 4553f4f5df23SVikas Chaudhary */ 4554f4f5df23SVikas Chaudhary if (!is_qla8022(ha)) { 4555f4f5df23SVikas Chaudhary ret = qla4xxx_request_irqs(ha); 4556afaf5a2dSDavid Somayajulu if (ret) { 4557f4f5df23SVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to reserve " 4558f4f5df23SVikas Chaudhary "interrupt %d already in use.\n", pdev->irq); 4559b3a271a9SManish Rangankar goto remove_host; 4560afaf5a2dSDavid Somayajulu } 4561f4f5df23SVikas Chaudhary } 4562afaf5a2dSDavid Somayajulu 45632232be0dSLalit Chandivade pci_save_state(ha->pdev); 4564f4f5df23SVikas Chaudhary ha->isp_ops->enable_intrs(ha); 4565afaf5a2dSDavid Somayajulu 4566afaf5a2dSDavid Somayajulu /* Start timer thread. */ 4567afaf5a2dSDavid Somayajulu qla4xxx_start_timer(ha, qla4xxx_timer, 1); 4568afaf5a2dSDavid Somayajulu 4569afaf5a2dSDavid Somayajulu set_bit(AF_INIT_DONE, &ha->flags); 4570afaf5a2dSDavid Somayajulu 4571afaf5a2dSDavid Somayajulu printk(KERN_INFO 4572afaf5a2dSDavid Somayajulu " QLogic iSCSI HBA Driver version: %s\n" 4573afaf5a2dSDavid Somayajulu " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n", 4574afaf5a2dSDavid Somayajulu qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev), 4575afaf5a2dSDavid Somayajulu ha->host_no, ha->firmware_version[0], ha->firmware_version[1], 4576afaf5a2dSDavid Somayajulu ha->patch_number, ha->build_number); 4577ed1086e0SVikas Chaudhary 45782a991c21SManish Rangankar if (qla4xxx_setup_boot_info(ha)) 45792a991c21SManish Rangankar ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n", 45802a991c21SManish Rangankar __func__); 45812a991c21SManish Rangankar 458213483730SMike Christie /* Perform the build ddb list and login to each */ 458313483730SMike Christie qla4xxx_build_ddb_list(ha, INIT_ADAPTER); 458413483730SMike Christie iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb); 458513483730SMike Christie 458613483730SMike Christie qla4xxx_create_chap_list(ha); 458713483730SMike Christie 4588ed1086e0SVikas Chaudhary qla4xxx_create_ifaces(ha); 4589afaf5a2dSDavid Somayajulu return 0; 4590afaf5a2dSDavid Somayajulu 4591b3a271a9SManish Rangankar remove_host: 4592b3a271a9SManish Rangankar scsi_remove_host(ha->host); 4593b3a271a9SManish Rangankar 4594afaf5a2dSDavid Somayajulu probe_failed: 4595afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 4596f4f5df23SVikas Chaudhary 4597f4f5df23SVikas Chaudhary probe_failed_ioconfig: 45982232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 4599afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 4600afaf5a2dSDavid Somayajulu 4601afaf5a2dSDavid Somayajulu probe_disable_device: 4602afaf5a2dSDavid Somayajulu pci_disable_device(pdev); 4603afaf5a2dSDavid Somayajulu 4604afaf5a2dSDavid Somayajulu return ret; 4605afaf5a2dSDavid Somayajulu } 4606afaf5a2dSDavid Somayajulu 4607afaf5a2dSDavid Somayajulu /** 46087eece5a0SKaren Higgins * qla4xxx_prevent_other_port_reinit - prevent other port from re-initialize 46097eece5a0SKaren Higgins * @ha: pointer to adapter structure 46107eece5a0SKaren Higgins * 46117eece5a0SKaren Higgins * Mark the other ISP-4xxx port to indicate that the driver is being removed, 46127eece5a0SKaren Higgins * so that the other port will not re-initialize while in the process of 46137eece5a0SKaren Higgins * removing the ha due to driver unload or hba hotplug. 46147eece5a0SKaren Higgins **/ 46157eece5a0SKaren Higgins static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha) 46167eece5a0SKaren Higgins { 46177eece5a0SKaren Higgins struct scsi_qla_host *other_ha = NULL; 46187eece5a0SKaren Higgins struct pci_dev *other_pdev = NULL; 46197eece5a0SKaren Higgins int fn = ISP4XXX_PCI_FN_2; 46207eece5a0SKaren Higgins 46217eece5a0SKaren Higgins /*iscsi function numbers for ISP4xxx is 1 and 3*/ 46227eece5a0SKaren Higgins if (PCI_FUNC(ha->pdev->devfn) & BIT_1) 46237eece5a0SKaren Higgins fn = ISP4XXX_PCI_FN_1; 46247eece5a0SKaren Higgins 46257eece5a0SKaren Higgins other_pdev = 46267eece5a0SKaren Higgins pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 46277eece5a0SKaren Higgins ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 46287eece5a0SKaren Higgins fn)); 46297eece5a0SKaren Higgins 46307eece5a0SKaren Higgins /* Get other_ha if other_pdev is valid and state is enable*/ 46317eece5a0SKaren Higgins if (other_pdev) { 46327eece5a0SKaren Higgins if (atomic_read(&other_pdev->enable_cnt)) { 46337eece5a0SKaren Higgins other_ha = pci_get_drvdata(other_pdev); 46347eece5a0SKaren Higgins if (other_ha) { 46357eece5a0SKaren Higgins set_bit(AF_HA_REMOVAL, &other_ha->flags); 46367eece5a0SKaren Higgins DEBUG2(ql4_printk(KERN_INFO, ha, "%s: " 46377eece5a0SKaren Higgins "Prevent %s reinit\n", __func__, 46387eece5a0SKaren Higgins dev_name(&other_ha->pdev->dev))); 46397eece5a0SKaren Higgins } 46407eece5a0SKaren Higgins } 46417eece5a0SKaren Higgins pci_dev_put(other_pdev); 46427eece5a0SKaren Higgins } 46437eece5a0SKaren Higgins } 46447eece5a0SKaren Higgins 464513483730SMike Christie static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha) 464613483730SMike Christie { 464713483730SMike Christie struct ddb_entry *ddb_entry; 464813483730SMike Christie int options; 464913483730SMike Christie int idx; 465013483730SMike Christie 465113483730SMike Christie for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) { 465213483730SMike Christie 465313483730SMike Christie ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx); 465413483730SMike Christie if ((ddb_entry != NULL) && 465513483730SMike Christie (ddb_entry->ddb_type == FLASH_DDB)) { 465613483730SMike Christie 465713483730SMike Christie options = LOGOUT_OPTION_CLOSE_SESSION; 465813483730SMike Christie if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) 465913483730SMike Christie == QLA_ERROR) 466013483730SMike Christie ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", 466113483730SMike Christie __func__); 466213483730SMike Christie 466313483730SMike Christie qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index); 466413483730SMike Christie /* 466513483730SMike Christie * we have decremented the reference count of the driver 466613483730SMike Christie * when we setup the session to have the driver unload 466713483730SMike Christie * to be seamless without actually destroying the 466813483730SMike Christie * session 466913483730SMike Christie **/ 467013483730SMike Christie try_module_get(qla4xxx_iscsi_transport.owner); 467113483730SMike Christie iscsi_destroy_endpoint(ddb_entry->conn->ep); 467213483730SMike Christie qla4xxx_free_ddb(ha, ddb_entry); 467313483730SMike Christie iscsi_session_teardown(ddb_entry->sess); 467413483730SMike Christie } 467513483730SMike Christie } 467613483730SMike Christie } 46777eece5a0SKaren Higgins /** 4678afaf5a2dSDavid Somayajulu * qla4xxx_remove_adapter - calback function to remove adapter. 4679afaf5a2dSDavid Somayajulu * @pci_dev: PCI device pointer 4680afaf5a2dSDavid Somayajulu **/ 4681afaf5a2dSDavid Somayajulu static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev) 4682afaf5a2dSDavid Somayajulu { 4683afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 4684afaf5a2dSDavid Somayajulu 4685afaf5a2dSDavid Somayajulu ha = pci_get_drvdata(pdev); 4686afaf5a2dSDavid Somayajulu 46877eece5a0SKaren Higgins if (!is_qla8022(ha)) 46887eece5a0SKaren Higgins qla4xxx_prevent_other_port_reinit(ha); 4689bee4fe8eSDavid C Somayajulu 4690ed1086e0SVikas Chaudhary /* destroy iface from sysfs */ 4691ed1086e0SVikas Chaudhary qla4xxx_destroy_ifaces(ha); 4692ed1086e0SVikas Chaudhary 469313483730SMike Christie if ((!ql4xdisablesysfsboot) && ha->boot_kset) 46942a991c21SManish Rangankar iscsi_boot_destroy_kset(ha->boot_kset); 46952a991c21SManish Rangankar 469613483730SMike Christie qla4xxx_destroy_fw_ddb_session(ha); 469713483730SMike Christie 4698afaf5a2dSDavid Somayajulu scsi_remove_host(ha->host); 4699afaf5a2dSDavid Somayajulu 4700afaf5a2dSDavid Somayajulu qla4xxx_free_adapter(ha); 4701afaf5a2dSDavid Somayajulu 4702afaf5a2dSDavid Somayajulu scsi_host_put(ha->host); 4703afaf5a2dSDavid Somayajulu 47042232be0dSLalit Chandivade pci_disable_pcie_error_reporting(pdev); 4705f4f5df23SVikas Chaudhary pci_disable_device(pdev); 4706afaf5a2dSDavid Somayajulu pci_set_drvdata(pdev, NULL); 4707afaf5a2dSDavid Somayajulu } 4708afaf5a2dSDavid Somayajulu 4709afaf5a2dSDavid Somayajulu /** 4710afaf5a2dSDavid Somayajulu * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method. 4711afaf5a2dSDavid Somayajulu * @ha: HA context 4712afaf5a2dSDavid Somayajulu * 4713afaf5a2dSDavid Somayajulu * At exit, the @ha's flags.enable_64bit_addressing set to indicated 4714afaf5a2dSDavid Somayajulu * supported addressing method. 4715afaf5a2dSDavid Somayajulu */ 471647975477SAdrian Bunk static void qla4xxx_config_dma_addressing(struct scsi_qla_host *ha) 4717afaf5a2dSDavid Somayajulu { 4718afaf5a2dSDavid Somayajulu int retval; 4719afaf5a2dSDavid Somayajulu 4720afaf5a2dSDavid Somayajulu /* Update our PCI device dma_mask for full 64 bit mask */ 47216a35528aSYang Hongyang if (pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(64)) == 0) { 47226a35528aSYang Hongyang if (pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { 4723afaf5a2dSDavid Somayajulu dev_dbg(&ha->pdev->dev, 4724afaf5a2dSDavid Somayajulu "Failed to set 64 bit PCI consistent mask; " 4725afaf5a2dSDavid Somayajulu "using 32 bit.\n"); 4726afaf5a2dSDavid Somayajulu retval = pci_set_consistent_dma_mask(ha->pdev, 4727284901a9SYang Hongyang DMA_BIT_MASK(32)); 4728afaf5a2dSDavid Somayajulu } 4729afaf5a2dSDavid Somayajulu } else 4730284901a9SYang Hongyang retval = pci_set_dma_mask(ha->pdev, DMA_BIT_MASK(32)); 4731afaf5a2dSDavid Somayajulu } 4732afaf5a2dSDavid Somayajulu 4733afaf5a2dSDavid Somayajulu static int qla4xxx_slave_alloc(struct scsi_device *sdev) 4734afaf5a2dSDavid Somayajulu { 4735b3a271a9SManish Rangankar struct iscsi_cls_session *cls_sess; 4736b3a271a9SManish Rangankar struct iscsi_session *sess; 4737b3a271a9SManish Rangankar struct ddb_entry *ddb; 47388bb4033dSVikas Chaudhary int queue_depth = QL4_DEF_QDEPTH; 4739afaf5a2dSDavid Somayajulu 4740b3a271a9SManish Rangankar cls_sess = starget_to_session(sdev->sdev_target); 4741b3a271a9SManish Rangankar sess = cls_sess->dd_data; 4742b3a271a9SManish Rangankar ddb = sess->dd_data; 4743b3a271a9SManish Rangankar 4744afaf5a2dSDavid Somayajulu sdev->hostdata = ddb; 4745afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 47468bb4033dSVikas Chaudhary 47478bb4033dSVikas Chaudhary if (ql4xmaxqdepth != 0 && ql4xmaxqdepth <= 0xffffU) 47488bb4033dSVikas Chaudhary queue_depth = ql4xmaxqdepth; 47498bb4033dSVikas Chaudhary 47508bb4033dSVikas Chaudhary scsi_activate_tcq(sdev, queue_depth); 4751afaf5a2dSDavid Somayajulu return 0; 4752afaf5a2dSDavid Somayajulu } 4753afaf5a2dSDavid Somayajulu 4754afaf5a2dSDavid Somayajulu static int qla4xxx_slave_configure(struct scsi_device *sdev) 4755afaf5a2dSDavid Somayajulu { 4756afaf5a2dSDavid Somayajulu sdev->tagged_supported = 1; 4757afaf5a2dSDavid Somayajulu return 0; 4758afaf5a2dSDavid Somayajulu } 4759afaf5a2dSDavid Somayajulu 4760afaf5a2dSDavid Somayajulu static void qla4xxx_slave_destroy(struct scsi_device *sdev) 4761afaf5a2dSDavid Somayajulu { 4762afaf5a2dSDavid Somayajulu scsi_deactivate_tcq(sdev, 1); 4763afaf5a2dSDavid Somayajulu } 4764afaf5a2dSDavid Somayajulu 4765afaf5a2dSDavid Somayajulu /** 4766afaf5a2dSDavid Somayajulu * qla4xxx_del_from_active_array - returns an active srb 4767afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure. 4768fd589a8fSAnand Gadiyar * @index: index into the active_array 4769afaf5a2dSDavid Somayajulu * 4770afaf5a2dSDavid Somayajulu * This routine removes and returns the srb at the specified index 4771afaf5a2dSDavid Somayajulu **/ 4772f4f5df23SVikas Chaudhary struct srb *qla4xxx_del_from_active_array(struct scsi_qla_host *ha, 4773f4f5df23SVikas Chaudhary uint32_t index) 4774afaf5a2dSDavid Somayajulu { 4775afaf5a2dSDavid Somayajulu struct srb *srb = NULL; 47765369887aSVikas Chaudhary struct scsi_cmnd *cmd = NULL; 4777afaf5a2dSDavid Somayajulu 47785369887aSVikas Chaudhary cmd = scsi_host_find_tag(ha->host, index); 47795369887aSVikas Chaudhary if (!cmd) 4780afaf5a2dSDavid Somayajulu return srb; 4781afaf5a2dSDavid Somayajulu 47825369887aSVikas Chaudhary srb = (struct srb *)CMD_SP(cmd); 47835369887aSVikas Chaudhary if (!srb) 4784afaf5a2dSDavid Somayajulu return srb; 4785afaf5a2dSDavid Somayajulu 4786afaf5a2dSDavid Somayajulu /* update counters */ 4787afaf5a2dSDavid Somayajulu if (srb->flags & SRB_DMA_VALID) { 4788afaf5a2dSDavid Somayajulu ha->req_q_count += srb->iocb_cnt; 4789afaf5a2dSDavid Somayajulu ha->iocb_cnt -= srb->iocb_cnt; 4790afaf5a2dSDavid Somayajulu if (srb->cmd) 47915369887aSVikas Chaudhary srb->cmd->host_scribble = 47925369887aSVikas Chaudhary (unsigned char *)(unsigned long) MAX_SRBS; 4793afaf5a2dSDavid Somayajulu } 4794afaf5a2dSDavid Somayajulu return srb; 4795afaf5a2dSDavid Somayajulu } 4796afaf5a2dSDavid Somayajulu 4797afaf5a2dSDavid Somayajulu /** 4798afaf5a2dSDavid Somayajulu * qla4xxx_eh_wait_on_command - waits for command to be returned by firmware 479909a0f719SVikas Chaudhary * @ha: Pointer to host adapter structure. 4800afaf5a2dSDavid Somayajulu * @cmd: Scsi Command to wait on. 4801afaf5a2dSDavid Somayajulu * 4802afaf5a2dSDavid Somayajulu * This routine waits for the command to be returned by the Firmware 4803afaf5a2dSDavid Somayajulu * for some max time. 4804afaf5a2dSDavid Somayajulu **/ 4805afaf5a2dSDavid Somayajulu static int qla4xxx_eh_wait_on_command(struct scsi_qla_host *ha, 4806afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd) 4807afaf5a2dSDavid Somayajulu { 4808afaf5a2dSDavid Somayajulu int done = 0; 4809afaf5a2dSDavid Somayajulu struct srb *rp; 4810afaf5a2dSDavid Somayajulu uint32_t max_wait_time = EH_WAIT_CMD_TOV; 48112232be0dSLalit Chandivade int ret = SUCCESS; 48122232be0dSLalit Chandivade 48132232be0dSLalit Chandivade /* Dont wait on command if PCI error is being handled 48142232be0dSLalit Chandivade * by PCI AER driver 48152232be0dSLalit Chandivade */ 48162232be0dSLalit Chandivade if (unlikely(pci_channel_offline(ha->pdev)) || 48172232be0dSLalit Chandivade (test_bit(AF_EEH_BUSY, &ha->flags))) { 48182232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: Return from %s\n", 48192232be0dSLalit Chandivade ha->host_no, __func__); 48202232be0dSLalit Chandivade return ret; 48212232be0dSLalit Chandivade } 4822afaf5a2dSDavid Somayajulu 4823afaf5a2dSDavid Somayajulu do { 4824afaf5a2dSDavid Somayajulu /* Checking to see if its returned to OS */ 48255369887aSVikas Chaudhary rp = (struct srb *) CMD_SP(cmd); 4826afaf5a2dSDavid Somayajulu if (rp == NULL) { 4827afaf5a2dSDavid Somayajulu done++; 4828afaf5a2dSDavid Somayajulu break; 4829afaf5a2dSDavid Somayajulu } 4830afaf5a2dSDavid Somayajulu 4831afaf5a2dSDavid Somayajulu msleep(2000); 4832afaf5a2dSDavid Somayajulu } while (max_wait_time--); 4833afaf5a2dSDavid Somayajulu 4834afaf5a2dSDavid Somayajulu return done; 4835afaf5a2dSDavid Somayajulu } 4836afaf5a2dSDavid Somayajulu 4837afaf5a2dSDavid Somayajulu /** 4838afaf5a2dSDavid Somayajulu * qla4xxx_wait_for_hba_online - waits for HBA to come online 4839afaf5a2dSDavid Somayajulu * @ha: Pointer to host adapter structure 4840afaf5a2dSDavid Somayajulu **/ 4841afaf5a2dSDavid Somayajulu static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha) 4842afaf5a2dSDavid Somayajulu { 4843afaf5a2dSDavid Somayajulu unsigned long wait_online; 4844afaf5a2dSDavid Somayajulu 4845f581a3f7SVikas Chaudhary wait_online = jiffies + (HBA_ONLINE_TOV * HZ); 4846afaf5a2dSDavid Somayajulu while (time_before(jiffies, wait_online)) { 4847afaf5a2dSDavid Somayajulu 4848afaf5a2dSDavid Somayajulu if (adapter_up(ha)) 4849afaf5a2dSDavid Somayajulu return QLA_SUCCESS; 4850afaf5a2dSDavid Somayajulu 4851afaf5a2dSDavid Somayajulu msleep(2000); 4852afaf5a2dSDavid Somayajulu } 4853afaf5a2dSDavid Somayajulu 4854afaf5a2dSDavid Somayajulu return QLA_ERROR; 4855afaf5a2dSDavid Somayajulu } 4856afaf5a2dSDavid Somayajulu 4857afaf5a2dSDavid Somayajulu /** 4858ce545039SMike Christie * qla4xxx_eh_wait_for_commands - wait for active cmds to finish. 4859fd589a8fSAnand Gadiyar * @ha: pointer to HBA 4860afaf5a2dSDavid Somayajulu * @t: target id 4861afaf5a2dSDavid Somayajulu * @l: lun id 4862afaf5a2dSDavid Somayajulu * 4863afaf5a2dSDavid Somayajulu * This function waits for all outstanding commands to a lun to complete. It 4864afaf5a2dSDavid Somayajulu * returns 0 if all pending commands are returned and 1 otherwise. 4865afaf5a2dSDavid Somayajulu **/ 4866ce545039SMike Christie static int qla4xxx_eh_wait_for_commands(struct scsi_qla_host *ha, 4867ce545039SMike Christie struct scsi_target *stgt, 4868ce545039SMike Christie struct scsi_device *sdev) 4869afaf5a2dSDavid Somayajulu { 4870afaf5a2dSDavid Somayajulu int cnt; 4871afaf5a2dSDavid Somayajulu int status = 0; 4872afaf5a2dSDavid Somayajulu struct scsi_cmnd *cmd; 4873afaf5a2dSDavid Somayajulu 4874afaf5a2dSDavid Somayajulu /* 4875ce545039SMike Christie * Waiting for all commands for the designated target or dev 4876ce545039SMike Christie * in the active array 4877afaf5a2dSDavid Somayajulu */ 4878afaf5a2dSDavid Somayajulu for (cnt = 0; cnt < ha->host->can_queue; cnt++) { 4879afaf5a2dSDavid Somayajulu cmd = scsi_host_find_tag(ha->host, cnt); 4880ce545039SMike Christie if (cmd && stgt == scsi_target(cmd->device) && 4881ce545039SMike Christie (!sdev || sdev == cmd->device)) { 4882afaf5a2dSDavid Somayajulu if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 4883afaf5a2dSDavid Somayajulu status++; 4884afaf5a2dSDavid Somayajulu break; 4885afaf5a2dSDavid Somayajulu } 4886afaf5a2dSDavid Somayajulu } 4887afaf5a2dSDavid Somayajulu } 4888afaf5a2dSDavid Somayajulu return status; 4889afaf5a2dSDavid Somayajulu } 4890afaf5a2dSDavid Somayajulu 4891afaf5a2dSDavid Somayajulu /** 489209a0f719SVikas Chaudhary * qla4xxx_eh_abort - callback for abort task. 489309a0f719SVikas Chaudhary * @cmd: Pointer to Linux's SCSI command structure 489409a0f719SVikas Chaudhary * 489509a0f719SVikas Chaudhary * This routine is called by the Linux OS to abort the specified 489609a0f719SVikas Chaudhary * command. 489709a0f719SVikas Chaudhary **/ 489809a0f719SVikas Chaudhary static int qla4xxx_eh_abort(struct scsi_cmnd *cmd) 489909a0f719SVikas Chaudhary { 490009a0f719SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 490109a0f719SVikas Chaudhary unsigned int id = cmd->device->id; 490209a0f719SVikas Chaudhary unsigned int lun = cmd->device->lun; 490392b3e5bbSMike Christie unsigned long flags; 490409a0f719SVikas Chaudhary struct srb *srb = NULL; 490509a0f719SVikas Chaudhary int ret = SUCCESS; 490609a0f719SVikas Chaudhary int wait = 0; 490709a0f719SVikas Chaudhary 4908c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 49095cd049a5SChristoph Hellwig "scsi%ld:%d:%d: Abort command issued cmd=%p\n", 49105cd049a5SChristoph Hellwig ha->host_no, id, lun, cmd); 491109a0f719SVikas Chaudhary 491292b3e5bbSMike Christie spin_lock_irqsave(&ha->hardware_lock, flags); 491309a0f719SVikas Chaudhary srb = (struct srb *) CMD_SP(cmd); 491492b3e5bbSMike Christie if (!srb) { 491592b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 491609a0f719SVikas Chaudhary return SUCCESS; 491792b3e5bbSMike Christie } 491809a0f719SVikas Chaudhary kref_get(&srb->srb_ref); 491992b3e5bbSMike Christie spin_unlock_irqrestore(&ha->hardware_lock, flags); 492009a0f719SVikas Chaudhary 492109a0f719SVikas Chaudhary if (qla4xxx_abort_task(ha, srb) != QLA_SUCCESS) { 492209a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx failed.\n", 492309a0f719SVikas Chaudhary ha->host_no, id, lun)); 492409a0f719SVikas Chaudhary ret = FAILED; 492509a0f719SVikas Chaudhary } else { 492609a0f719SVikas Chaudhary DEBUG3(printk("scsi%ld:%d:%d: Abort_task mbx success.\n", 492709a0f719SVikas Chaudhary ha->host_no, id, lun)); 492809a0f719SVikas Chaudhary wait = 1; 492909a0f719SVikas Chaudhary } 493009a0f719SVikas Chaudhary 493109a0f719SVikas Chaudhary kref_put(&srb->srb_ref, qla4xxx_srb_compl); 493209a0f719SVikas Chaudhary 493309a0f719SVikas Chaudhary /* Wait for command to complete */ 493409a0f719SVikas Chaudhary if (wait) { 493509a0f719SVikas Chaudhary if (!qla4xxx_eh_wait_on_command(ha, cmd)) { 493609a0f719SVikas Chaudhary DEBUG2(printk("scsi%ld:%d:%d: Abort handler timed out\n", 493709a0f719SVikas Chaudhary ha->host_no, id, lun)); 493809a0f719SVikas Chaudhary ret = FAILED; 493909a0f719SVikas Chaudhary } 494009a0f719SVikas Chaudhary } 494109a0f719SVikas Chaudhary 4942c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 494309a0f719SVikas Chaudhary "scsi%ld:%d:%d: Abort command - %s\n", 494425985edcSLucas De Marchi ha->host_no, id, lun, (ret == SUCCESS) ? "succeeded" : "failed"); 494509a0f719SVikas Chaudhary 494609a0f719SVikas Chaudhary return ret; 494709a0f719SVikas Chaudhary } 494809a0f719SVikas Chaudhary 494909a0f719SVikas Chaudhary /** 4950afaf5a2dSDavid Somayajulu * qla4xxx_eh_device_reset - callback for target reset. 4951afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 4952afaf5a2dSDavid Somayajulu * 4953afaf5a2dSDavid Somayajulu * This routine is called by the Linux OS to reset all luns on the 4954afaf5a2dSDavid Somayajulu * specified target. 4955afaf5a2dSDavid Somayajulu **/ 4956afaf5a2dSDavid Somayajulu static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd) 4957afaf5a2dSDavid Somayajulu { 4958afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 4959afaf5a2dSDavid Somayajulu struct ddb_entry *ddb_entry = cmd->device->hostdata; 4960afaf5a2dSDavid Somayajulu int ret = FAILED, stat; 4961afaf5a2dSDavid Somayajulu 4962612f7348SKaren Higgins if (!ddb_entry) 4963afaf5a2dSDavid Somayajulu return ret; 4964afaf5a2dSDavid Somayajulu 4965c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 4966c01be6dcSMike Christie if (ret) 4967c01be6dcSMike Christie return ret; 4968c01be6dcSMike Christie ret = FAILED; 4969c01be6dcSMike Christie 4970c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 4971afaf5a2dSDavid Somayajulu "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no, 4972afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 4973afaf5a2dSDavid Somayajulu 4974afaf5a2dSDavid Somayajulu DEBUG2(printk(KERN_INFO 4975afaf5a2dSDavid Somayajulu "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, to=%x," 4976afaf5a2dSDavid Somayajulu "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no, 4977242f9dcbSJens Axboe cmd, jiffies, cmd->request->timeout / HZ, 4978afaf5a2dSDavid Somayajulu ha->dpc_flags, cmd->result, cmd->allowed)); 4979afaf5a2dSDavid Somayajulu 4980afaf5a2dSDavid Somayajulu /* FIXME: wait for hba to go online */ 4981afaf5a2dSDavid Somayajulu stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun); 4982afaf5a2dSDavid Somayajulu if (stat != QLA_SUCCESS) { 4983c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat); 4984afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 4985afaf5a2dSDavid Somayajulu } 4986afaf5a2dSDavid Somayajulu 4987ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 4988ce545039SMike Christie cmd->device)) { 4989c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 4990afaf5a2dSDavid Somayajulu "DEVICE RESET FAILED - waiting for " 4991afaf5a2dSDavid Somayajulu "commands.\n"); 4992afaf5a2dSDavid Somayajulu goto eh_dev_reset_done; 4993afaf5a2dSDavid Somayajulu } 4994afaf5a2dSDavid Somayajulu 49959d562913SDavid C Somayajulu /* Send marker. */ 49969d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 49979d562913SDavid C Somayajulu MM_LUN_RESET) != QLA_SUCCESS) 49989d562913SDavid C Somayajulu goto eh_dev_reset_done; 49999d562913SDavid C Somayajulu 5000c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5001afaf5a2dSDavid Somayajulu "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", 5002afaf5a2dSDavid Somayajulu ha->host_no, cmd->device->channel, cmd->device->id, 5003afaf5a2dSDavid Somayajulu cmd->device->lun); 5004afaf5a2dSDavid Somayajulu 5005afaf5a2dSDavid Somayajulu ret = SUCCESS; 5006afaf5a2dSDavid Somayajulu 5007afaf5a2dSDavid Somayajulu eh_dev_reset_done: 5008afaf5a2dSDavid Somayajulu 5009afaf5a2dSDavid Somayajulu return ret; 5010afaf5a2dSDavid Somayajulu } 5011afaf5a2dSDavid Somayajulu 5012afaf5a2dSDavid Somayajulu /** 5013ce545039SMike Christie * qla4xxx_eh_target_reset - callback for target reset. 5014ce545039SMike Christie * @cmd: Pointer to Linux's SCSI command structure 5015ce545039SMike Christie * 5016ce545039SMike Christie * This routine is called by the Linux OS to reset the target. 5017ce545039SMike Christie **/ 5018ce545039SMike Christie static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd) 5019ce545039SMike Christie { 5020ce545039SMike Christie struct scsi_qla_host *ha = to_qla_host(cmd->device->host); 5021ce545039SMike Christie struct ddb_entry *ddb_entry = cmd->device->hostdata; 5022c01be6dcSMike Christie int stat, ret; 5023ce545039SMike Christie 5024ce545039SMike Christie if (!ddb_entry) 5025ce545039SMike Christie return FAILED; 5026ce545039SMike Christie 5027c01be6dcSMike Christie ret = iscsi_block_scsi_eh(cmd); 5028c01be6dcSMike Christie if (ret) 5029c01be6dcSMike Christie return ret; 5030c01be6dcSMike Christie 5031ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5032ce545039SMike Christie "WARM TARGET RESET ISSUED.\n"); 5033ce545039SMike Christie 5034ce545039SMike Christie DEBUG2(printk(KERN_INFO 5035ce545039SMike Christie "scsi%ld: TARGET_DEVICE_RESET cmd=%p jiffies = 0x%lx, " 5036ce545039SMike Christie "to=%x,dpc_flags=%lx, status=%x allowed=%d\n", 5037242f9dcbSJens Axboe ha->host_no, cmd, jiffies, cmd->request->timeout / HZ, 5038ce545039SMike Christie ha->dpc_flags, cmd->result, cmd->allowed)); 5039ce545039SMike Christie 5040ce545039SMike Christie stat = qla4xxx_reset_target(ha, ddb_entry); 5041ce545039SMike Christie if (stat != QLA_SUCCESS) { 5042ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5043ce545039SMike Christie "WARM TARGET RESET FAILED.\n"); 5044ce545039SMike Christie return FAILED; 5045ce545039SMike Christie } 5046ce545039SMike Christie 5047ce545039SMike Christie if (qla4xxx_eh_wait_for_commands(ha, scsi_target(cmd->device), 5048ce545039SMike Christie NULL)) { 5049ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5050ce545039SMike Christie "WARM TARGET DEVICE RESET FAILED - " 5051ce545039SMike Christie "waiting for commands.\n"); 5052ce545039SMike Christie return FAILED; 5053ce545039SMike Christie } 5054ce545039SMike Christie 50559d562913SDavid C Somayajulu /* Send marker. */ 50569d562913SDavid C Somayajulu if (qla4xxx_send_marker_iocb(ha, ddb_entry, cmd->device->lun, 50579d562913SDavid C Somayajulu MM_TGT_WARM_RESET) != QLA_SUCCESS) { 50589d562913SDavid C Somayajulu starget_printk(KERN_INFO, scsi_target(cmd->device), 50599d562913SDavid C Somayajulu "WARM TARGET DEVICE RESET FAILED - " 50609d562913SDavid C Somayajulu "marker iocb failed.\n"); 50619d562913SDavid C Somayajulu return FAILED; 50629d562913SDavid C Somayajulu } 50639d562913SDavid C Somayajulu 5064ce545039SMike Christie starget_printk(KERN_INFO, scsi_target(cmd->device), 5065ce545039SMike Christie "WARM TARGET RESET SUCCEEDED.\n"); 5066ce545039SMike Christie return SUCCESS; 5067ce545039SMike Christie } 5068ce545039SMike Christie 5069ce545039SMike Christie /** 50708a288960SSarang Radke * qla4xxx_is_eh_active - check if error handler is running 50718a288960SSarang Radke * @shost: Pointer to SCSI Host struct 50728a288960SSarang Radke * 50738a288960SSarang Radke * This routine finds that if reset host is called in EH 50748a288960SSarang Radke * scenario or from some application like sg_reset 50758a288960SSarang Radke **/ 50768a288960SSarang Radke static int qla4xxx_is_eh_active(struct Scsi_Host *shost) 50778a288960SSarang Radke { 50788a288960SSarang Radke if (shost->shost_state == SHOST_RECOVERY) 50798a288960SSarang Radke return 1; 50808a288960SSarang Radke return 0; 50818a288960SSarang Radke } 50828a288960SSarang Radke 50838a288960SSarang Radke /** 5084afaf5a2dSDavid Somayajulu * qla4xxx_eh_host_reset - kernel callback 5085afaf5a2dSDavid Somayajulu * @cmd: Pointer to Linux's SCSI command structure 5086afaf5a2dSDavid Somayajulu * 5087afaf5a2dSDavid Somayajulu * This routine is invoked by the Linux kernel to perform fatal error 5088afaf5a2dSDavid Somayajulu * recovery on the specified adapter. 5089afaf5a2dSDavid Somayajulu **/ 5090afaf5a2dSDavid Somayajulu static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd) 5091afaf5a2dSDavid Somayajulu { 5092afaf5a2dSDavid Somayajulu int return_status = FAILED; 5093afaf5a2dSDavid Somayajulu struct scsi_qla_host *ha; 5094afaf5a2dSDavid Somayajulu 5095b3a271a9SManish Rangankar ha = to_qla_host(cmd->device->host); 5096afaf5a2dSDavid Somayajulu 5097f4f5df23SVikas Chaudhary if (ql4xdontresethba) { 5098f4f5df23SVikas Chaudhary DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n", 5099f4f5df23SVikas Chaudhary ha->host_no, __func__)); 51008a288960SSarang Radke 51018a288960SSarang Radke /* Clear outstanding srb in queues */ 51028a288960SSarang Radke if (qla4xxx_is_eh_active(cmd->device->host)) 51038a288960SSarang Radke qla4xxx_abort_active_cmds(ha, DID_ABORT << 16); 51048a288960SSarang Radke 5105f4f5df23SVikas Chaudhary return FAILED; 5106f4f5df23SVikas Chaudhary } 5107f4f5df23SVikas Chaudhary 5108c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, 5109dca05c4cSKaren Higgins "scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no, 5110afaf5a2dSDavid Somayajulu cmd->device->channel, cmd->device->id, cmd->device->lun); 5111afaf5a2dSDavid Somayajulu 5112afaf5a2dSDavid Somayajulu if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) { 5113afaf5a2dSDavid Somayajulu DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter " 5114afaf5a2dSDavid Somayajulu "DEAD.\n", ha->host_no, cmd->device->channel, 5115afaf5a2dSDavid Somayajulu __func__)); 5116afaf5a2dSDavid Somayajulu 5117afaf5a2dSDavid Somayajulu return FAILED; 5118afaf5a2dSDavid Somayajulu } 5119afaf5a2dSDavid Somayajulu 5120f4f5df23SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 5121f4f5df23SVikas Chaudhary if (is_qla8022(ha)) 5122f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); 5123f4f5df23SVikas Chaudhary else 5124f4f5df23SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 5125f4f5df23SVikas Chaudhary } 512650a29aecSMike Christie 5127f4f5df23SVikas Chaudhary if (qla4xxx_recover_adapter(ha) == QLA_SUCCESS) 5128afaf5a2dSDavid Somayajulu return_status = SUCCESS; 5129afaf5a2dSDavid Somayajulu 5130c2660df3SVikas Chaudhary ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n", 513125985edcSLucas De Marchi return_status == FAILED ? "FAILED" : "SUCCEEDED"); 5132afaf5a2dSDavid Somayajulu 5133afaf5a2dSDavid Somayajulu return return_status; 5134afaf5a2dSDavid Somayajulu } 5135afaf5a2dSDavid Somayajulu 513695d31262SVikas Chaudhary static int qla4xxx_context_reset(struct scsi_qla_host *ha) 513795d31262SVikas Chaudhary { 513895d31262SVikas Chaudhary uint32_t mbox_cmd[MBOX_REG_COUNT]; 513995d31262SVikas Chaudhary uint32_t mbox_sts[MBOX_REG_COUNT]; 514095d31262SVikas Chaudhary struct addr_ctrl_blk_def *acb = NULL; 514195d31262SVikas Chaudhary uint32_t acb_len = sizeof(struct addr_ctrl_blk_def); 514295d31262SVikas Chaudhary int rval = QLA_SUCCESS; 514395d31262SVikas Chaudhary dma_addr_t acb_dma; 514495d31262SVikas Chaudhary 514595d31262SVikas Chaudhary acb = dma_alloc_coherent(&ha->pdev->dev, 514695d31262SVikas Chaudhary sizeof(struct addr_ctrl_blk_def), 514795d31262SVikas Chaudhary &acb_dma, GFP_KERNEL); 514895d31262SVikas Chaudhary if (!acb) { 514995d31262SVikas Chaudhary ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", 515095d31262SVikas Chaudhary __func__); 515195d31262SVikas Chaudhary rval = -ENOMEM; 515295d31262SVikas Chaudhary goto exit_port_reset; 515395d31262SVikas Chaudhary } 515495d31262SVikas Chaudhary 515595d31262SVikas Chaudhary memset(acb, 0, acb_len); 515695d31262SVikas Chaudhary 515795d31262SVikas Chaudhary rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len); 515895d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 515995d31262SVikas Chaudhary rval = -EIO; 516095d31262SVikas Chaudhary goto exit_free_acb; 516195d31262SVikas Chaudhary } 516295d31262SVikas Chaudhary 516395d31262SVikas Chaudhary rval = qla4xxx_disable_acb(ha); 516495d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 516595d31262SVikas Chaudhary rval = -EIO; 516695d31262SVikas Chaudhary goto exit_free_acb; 516795d31262SVikas Chaudhary } 516895d31262SVikas Chaudhary 516995d31262SVikas Chaudhary wait_for_completion_timeout(&ha->disable_acb_comp, 517095d31262SVikas Chaudhary DISABLE_ACB_TOV * HZ); 517195d31262SVikas Chaudhary 517295d31262SVikas Chaudhary rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma); 517395d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 517495d31262SVikas Chaudhary rval = -EIO; 517595d31262SVikas Chaudhary goto exit_free_acb; 517695d31262SVikas Chaudhary } 517795d31262SVikas Chaudhary 517895d31262SVikas Chaudhary exit_free_acb: 517995d31262SVikas Chaudhary dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def), 518095d31262SVikas Chaudhary acb, acb_dma); 518195d31262SVikas Chaudhary exit_port_reset: 518295d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__, 518395d31262SVikas Chaudhary rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED")); 518495d31262SVikas Chaudhary return rval; 518595d31262SVikas Chaudhary } 518695d31262SVikas Chaudhary 518795d31262SVikas Chaudhary static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type) 518895d31262SVikas Chaudhary { 518995d31262SVikas Chaudhary struct scsi_qla_host *ha = to_qla_host(shost); 519095d31262SVikas Chaudhary int rval = QLA_SUCCESS; 519195d31262SVikas Chaudhary 519295d31262SVikas Chaudhary if (ql4xdontresethba) { 519395d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n", 519495d31262SVikas Chaudhary __func__)); 519595d31262SVikas Chaudhary rval = -EPERM; 519695d31262SVikas Chaudhary goto exit_host_reset; 519795d31262SVikas Chaudhary } 519895d31262SVikas Chaudhary 519995d31262SVikas Chaudhary rval = qla4xxx_wait_for_hba_online(ha); 520095d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 520195d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unable to reset host " 520295d31262SVikas Chaudhary "adapter\n", __func__)); 520395d31262SVikas Chaudhary rval = -EIO; 520495d31262SVikas Chaudhary goto exit_host_reset; 520595d31262SVikas Chaudhary } 520695d31262SVikas Chaudhary 520795d31262SVikas Chaudhary if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) 520895d31262SVikas Chaudhary goto recover_adapter; 520995d31262SVikas Chaudhary 521095d31262SVikas Chaudhary switch (reset_type) { 521195d31262SVikas Chaudhary case SCSI_ADAPTER_RESET: 521295d31262SVikas Chaudhary set_bit(DPC_RESET_HA, &ha->dpc_flags); 521395d31262SVikas Chaudhary break; 521495d31262SVikas Chaudhary case SCSI_FIRMWARE_RESET: 521595d31262SVikas Chaudhary if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) { 521695d31262SVikas Chaudhary if (is_qla8022(ha)) 521795d31262SVikas Chaudhary /* set firmware context reset */ 521895d31262SVikas Chaudhary set_bit(DPC_RESET_HA_FW_CONTEXT, 521995d31262SVikas Chaudhary &ha->dpc_flags); 522095d31262SVikas Chaudhary else { 522195d31262SVikas Chaudhary rval = qla4xxx_context_reset(ha); 522295d31262SVikas Chaudhary goto exit_host_reset; 522395d31262SVikas Chaudhary } 522495d31262SVikas Chaudhary } 522595d31262SVikas Chaudhary break; 522695d31262SVikas Chaudhary } 522795d31262SVikas Chaudhary 522895d31262SVikas Chaudhary recover_adapter: 522995d31262SVikas Chaudhary rval = qla4xxx_recover_adapter(ha); 523095d31262SVikas Chaudhary if (rval != QLA_SUCCESS) { 523195d31262SVikas Chaudhary DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n", 523295d31262SVikas Chaudhary __func__)); 523395d31262SVikas Chaudhary rval = -EIO; 523495d31262SVikas Chaudhary } 523595d31262SVikas Chaudhary 523695d31262SVikas Chaudhary exit_host_reset: 523795d31262SVikas Chaudhary return rval; 523895d31262SVikas Chaudhary } 523995d31262SVikas Chaudhary 52402232be0dSLalit Chandivade /* PCI AER driver recovers from all correctable errors w/o 52412232be0dSLalit Chandivade * driver intervention. For uncorrectable errors PCI AER 52422232be0dSLalit Chandivade * driver calls the following device driver's callbacks 52432232be0dSLalit Chandivade * 52442232be0dSLalit Chandivade * - Fatal Errors - link_reset 52452232be0dSLalit Chandivade * - Non-Fatal Errors - driver's pci_error_detected() which 52462232be0dSLalit Chandivade * returns CAN_RECOVER, NEED_RESET or DISCONNECT. 52472232be0dSLalit Chandivade * 52482232be0dSLalit Chandivade * PCI AER driver calls 52492232be0dSLalit Chandivade * CAN_RECOVER - driver's pci_mmio_enabled(), mmio_enabled 52502232be0dSLalit Chandivade * returns RECOVERED or NEED_RESET if fw_hung 52512232be0dSLalit Chandivade * NEED_RESET - driver's slot_reset() 52522232be0dSLalit Chandivade * DISCONNECT - device is dead & cannot recover 52532232be0dSLalit Chandivade * RECOVERED - driver's pci_resume() 52542232be0dSLalit Chandivade */ 52552232be0dSLalit Chandivade static pci_ers_result_t 52562232be0dSLalit Chandivade qla4xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 52572232be0dSLalit Chandivade { 52582232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 52592232be0dSLalit Chandivade 52602232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: error detected:state %x\n", 52612232be0dSLalit Chandivade ha->host_no, __func__, state); 52622232be0dSLalit Chandivade 52632232be0dSLalit Chandivade if (!is_aer_supported(ha)) 52642232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 52652232be0dSLalit Chandivade 52662232be0dSLalit Chandivade switch (state) { 52672232be0dSLalit Chandivade case pci_channel_io_normal: 52682232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 52692232be0dSLalit Chandivade return PCI_ERS_RESULT_CAN_RECOVER; 52702232be0dSLalit Chandivade case pci_channel_io_frozen: 52712232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 52722232be0dSLalit Chandivade qla4xxx_mailbox_premature_completion(ha); 52732232be0dSLalit Chandivade qla4xxx_free_irqs(ha); 52742232be0dSLalit Chandivade pci_disable_device(pdev); 52757b3595dfSVikas Chaudhary /* Return back all IOs */ 52767b3595dfSVikas Chaudhary qla4xxx_abort_active_cmds(ha, DID_RESET << 16); 52772232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 52782232be0dSLalit Chandivade case pci_channel_io_perm_failure: 52792232be0dSLalit Chandivade set_bit(AF_EEH_BUSY, &ha->flags); 52802232be0dSLalit Chandivade set_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags); 52812232be0dSLalit Chandivade qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16); 52822232be0dSLalit Chandivade return PCI_ERS_RESULT_DISCONNECT; 52832232be0dSLalit Chandivade } 52842232be0dSLalit Chandivade return PCI_ERS_RESULT_NEED_RESET; 52852232be0dSLalit Chandivade } 52862232be0dSLalit Chandivade 52872232be0dSLalit Chandivade /** 52882232be0dSLalit Chandivade * qla4xxx_pci_mmio_enabled() gets called if 52892232be0dSLalit Chandivade * qla4xxx_pci_error_detected() returns PCI_ERS_RESULT_CAN_RECOVER 52902232be0dSLalit Chandivade * and read/write to the device still works. 52912232be0dSLalit Chandivade **/ 52922232be0dSLalit Chandivade static pci_ers_result_t 52932232be0dSLalit Chandivade qla4xxx_pci_mmio_enabled(struct pci_dev *pdev) 52942232be0dSLalit Chandivade { 52952232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 52962232be0dSLalit Chandivade 52972232be0dSLalit Chandivade if (!is_aer_supported(ha)) 52982232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 52992232be0dSLalit Chandivade 53002232be0dSLalit Chandivade return PCI_ERS_RESULT_RECOVERED; 53012232be0dSLalit Chandivade } 53022232be0dSLalit Chandivade 53037b3595dfSVikas Chaudhary static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha) 53042232be0dSLalit Chandivade { 53052232be0dSLalit Chandivade uint32_t rval = QLA_ERROR; 53067b3595dfSVikas Chaudhary uint32_t ret = 0; 53072232be0dSLalit Chandivade int fn; 53082232be0dSLalit Chandivade struct pci_dev *other_pdev = NULL; 53092232be0dSLalit Chandivade 53102232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: In %s\n", ha->host_no, __func__); 53112232be0dSLalit Chandivade 53122232be0dSLalit Chandivade set_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 53132232be0dSLalit Chandivade 53142232be0dSLalit Chandivade if (test_bit(AF_ONLINE, &ha->flags)) { 53152232be0dSLalit Chandivade clear_bit(AF_ONLINE, &ha->flags); 5316b3a271a9SManish Rangankar clear_bit(AF_LINK_UP, &ha->flags); 5317b3a271a9SManish Rangankar iscsi_host_for_each_session(ha->host, qla4xxx_fail_session); 53182232be0dSLalit Chandivade qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS); 53192232be0dSLalit Chandivade } 53202232be0dSLalit Chandivade 53212232be0dSLalit Chandivade fn = PCI_FUNC(ha->pdev->devfn); 53222232be0dSLalit Chandivade while (fn > 0) { 53232232be0dSLalit Chandivade fn--; 53242232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Finding PCI device at " 53252232be0dSLalit Chandivade "func %x\n", ha->host_no, __func__, fn); 53262232be0dSLalit Chandivade /* Get the pci device given the domain, bus, 53272232be0dSLalit Chandivade * slot/function number */ 53282232be0dSLalit Chandivade other_pdev = 53292232be0dSLalit Chandivade pci_get_domain_bus_and_slot(pci_domain_nr(ha->pdev->bus), 53302232be0dSLalit Chandivade ha->pdev->bus->number, PCI_DEVFN(PCI_SLOT(ha->pdev->devfn), 53312232be0dSLalit Chandivade fn)); 53322232be0dSLalit Chandivade 53332232be0dSLalit Chandivade if (!other_pdev) 53342232be0dSLalit Chandivade continue; 53352232be0dSLalit Chandivade 53362232be0dSLalit Chandivade if (atomic_read(&other_pdev->enable_cnt)) { 53372232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Found PCI " 53382232be0dSLalit Chandivade "func in enabled state%x\n", ha->host_no, 53392232be0dSLalit Chandivade __func__, fn); 53402232be0dSLalit Chandivade pci_dev_put(other_pdev); 53412232be0dSLalit Chandivade break; 53422232be0dSLalit Chandivade } 53432232be0dSLalit Chandivade pci_dev_put(other_pdev); 53442232be0dSLalit Chandivade } 53452232be0dSLalit Chandivade 53462232be0dSLalit Chandivade /* The first function on the card, the reset owner will 53472232be0dSLalit Chandivade * start & initialize the firmware. The other functions 53482232be0dSLalit Chandivade * on the card will reset the firmware context 53492232be0dSLalit Chandivade */ 53502232be0dSLalit Chandivade if (!fn) { 53512232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn being reset " 53522232be0dSLalit Chandivade "0x%x is the owner\n", ha->host_no, __func__, 53532232be0dSLalit Chandivade ha->pdev->devfn); 53542232be0dSLalit Chandivade 53552232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 53562232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 53572232be0dSLalit Chandivade QLA82XX_DEV_COLD); 53582232be0dSLalit Chandivade 53592232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, 53602232be0dSLalit Chandivade QLA82XX_IDC_VERSION); 53612232be0dSLalit Chandivade 53622232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 53632232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 536413483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 53652232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 53662232be0dSLalit Chandivade 53672232be0dSLalit Chandivade if (rval != QLA_SUCCESS) { 53682232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 53692232be0dSLalit Chandivade "FAILED\n", ha->host_no, __func__); 53702232be0dSLalit Chandivade qla4_8xxx_clear_drv_active(ha); 53712232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 53722232be0dSLalit Chandivade QLA82XX_DEV_FAILED); 53732232be0dSLalit Chandivade } else { 53742232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: HW State: " 53752232be0dSLalit Chandivade "READY\n", ha->host_no, __func__); 53762232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, 53772232be0dSLalit Chandivade QLA82XX_DEV_READY); 53782232be0dSLalit Chandivade /* Clear driver state register */ 53792232be0dSLalit Chandivade qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, 0); 53802232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 53817b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 53827b3595dfSVikas Chaudhary if (ret) { 53837b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to " 53847b3595dfSVikas Chaudhary "reserve interrupt %d already in use.\n", 53857b3595dfSVikas Chaudhary ha->pdev->irq); 53867b3595dfSVikas Chaudhary rval = QLA_ERROR; 53877b3595dfSVikas Chaudhary } else { 53882232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 53897b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 53907b3595dfSVikas Chaudhary } 53912232be0dSLalit Chandivade } 53922232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 53932232be0dSLalit Chandivade } else { 53942232be0dSLalit Chandivade ql4_printk(KERN_INFO, ha, "scsi%ld: %s: devfn 0x%x is not " 53952232be0dSLalit Chandivade "the reset owner\n", ha->host_no, __func__, 53962232be0dSLalit Chandivade ha->pdev->devfn); 53972232be0dSLalit Chandivade if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) == 53982232be0dSLalit Chandivade QLA82XX_DEV_READY)) { 53992232be0dSLalit Chandivade clear_bit(AF_FW_RECOVERY, &ha->flags); 540013483730SMike Christie rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER); 54017b3595dfSVikas Chaudhary if (rval == QLA_SUCCESS) { 54027b3595dfSVikas Chaudhary ret = qla4xxx_request_irqs(ha); 54037b3595dfSVikas Chaudhary if (ret) { 54047b3595dfSVikas Chaudhary ql4_printk(KERN_WARNING, ha, "Failed to" 54057b3595dfSVikas Chaudhary " reserve interrupt %d already in" 54067b3595dfSVikas Chaudhary " use.\n", ha->pdev->irq); 54077b3595dfSVikas Chaudhary rval = QLA_ERROR; 54087b3595dfSVikas Chaudhary } else { 54092232be0dSLalit Chandivade ha->isp_ops->enable_intrs(ha); 54107b3595dfSVikas Chaudhary rval = QLA_SUCCESS; 54117b3595dfSVikas Chaudhary } 54127b3595dfSVikas Chaudhary } 54132232be0dSLalit Chandivade qla4_8xxx_idc_lock(ha); 54142232be0dSLalit Chandivade qla4_8xxx_set_drv_active(ha); 54152232be0dSLalit Chandivade qla4_8xxx_idc_unlock(ha); 54162232be0dSLalit Chandivade } 54172232be0dSLalit Chandivade } 54182232be0dSLalit Chandivade clear_bit(DPC_RESET_ACTIVE, &ha->dpc_flags); 54192232be0dSLalit Chandivade return rval; 54202232be0dSLalit Chandivade } 54212232be0dSLalit Chandivade 54222232be0dSLalit Chandivade static pci_ers_result_t 54232232be0dSLalit Chandivade qla4xxx_pci_slot_reset(struct pci_dev *pdev) 54242232be0dSLalit Chandivade { 54252232be0dSLalit Chandivade pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT; 54262232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 54272232be0dSLalit Chandivade int rc; 54282232be0dSLalit Chandivade 54292232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: slot_reset\n", 54302232be0dSLalit Chandivade ha->host_no, __func__); 54312232be0dSLalit Chandivade 54322232be0dSLalit Chandivade if (!is_aer_supported(ha)) 54332232be0dSLalit Chandivade return PCI_ERS_RESULT_NONE; 54342232be0dSLalit Chandivade 54352232be0dSLalit Chandivade /* Restore the saved state of PCIe device - 54362232be0dSLalit Chandivade * BAR registers, PCI Config space, PCIX, MSI, 54372232be0dSLalit Chandivade * IOV states 54382232be0dSLalit Chandivade */ 54392232be0dSLalit Chandivade pci_restore_state(pdev); 54402232be0dSLalit Chandivade 54412232be0dSLalit Chandivade /* pci_restore_state() clears the saved_state flag of the device 54422232be0dSLalit Chandivade * save restored state which resets saved_state flag 54432232be0dSLalit Chandivade */ 54442232be0dSLalit Chandivade pci_save_state(pdev); 54452232be0dSLalit Chandivade 54462232be0dSLalit Chandivade /* Initialize device or resume if in suspended state */ 54472232be0dSLalit Chandivade rc = pci_enable_device(pdev); 54482232be0dSLalit Chandivade if (rc) { 544925985edcSLucas De Marchi ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Can't re-enable " 54502232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__); 54512232be0dSLalit Chandivade goto exit_slot_reset; 54522232be0dSLalit Chandivade } 54532232be0dSLalit Chandivade 54547b3595dfSVikas Chaudhary ha->isp_ops->disable_intrs(ha); 54552232be0dSLalit Chandivade 54562232be0dSLalit Chandivade if (is_qla8022(ha)) { 54572232be0dSLalit Chandivade if (qla4_8xxx_error_recovery(ha) == QLA_SUCCESS) { 54582232be0dSLalit Chandivade ret = PCI_ERS_RESULT_RECOVERED; 54592232be0dSLalit Chandivade goto exit_slot_reset; 54602232be0dSLalit Chandivade } else 54612232be0dSLalit Chandivade goto exit_slot_reset; 54622232be0dSLalit Chandivade } 54632232be0dSLalit Chandivade 54642232be0dSLalit Chandivade exit_slot_reset: 54652232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Return=%x\n" 54662232be0dSLalit Chandivade "device after reset\n", ha->host_no, __func__, ret); 54672232be0dSLalit Chandivade return ret; 54682232be0dSLalit Chandivade } 54692232be0dSLalit Chandivade 54702232be0dSLalit Chandivade static void 54712232be0dSLalit Chandivade qla4xxx_pci_resume(struct pci_dev *pdev) 54722232be0dSLalit Chandivade { 54732232be0dSLalit Chandivade struct scsi_qla_host *ha = pci_get_drvdata(pdev); 54742232be0dSLalit Chandivade int ret; 54752232be0dSLalit Chandivade 54762232be0dSLalit Chandivade ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: pci_resume\n", 54772232be0dSLalit Chandivade ha->host_no, __func__); 54782232be0dSLalit Chandivade 54792232be0dSLalit Chandivade ret = qla4xxx_wait_for_hba_online(ha); 54802232be0dSLalit Chandivade if (ret != QLA_SUCCESS) { 54812232be0dSLalit Chandivade ql4_printk(KERN_ERR, ha, "scsi%ld: %s: the device failed to " 54822232be0dSLalit Chandivade "resume I/O from slot/link_reset\n", ha->host_no, 54832232be0dSLalit Chandivade __func__); 54842232be0dSLalit Chandivade } 54852232be0dSLalit Chandivade 54862232be0dSLalit Chandivade pci_cleanup_aer_uncorrect_error_status(pdev); 54872232be0dSLalit Chandivade clear_bit(AF_EEH_BUSY, &ha->flags); 54882232be0dSLalit Chandivade } 54892232be0dSLalit Chandivade 54902232be0dSLalit Chandivade static struct pci_error_handlers qla4xxx_err_handler = { 54912232be0dSLalit Chandivade .error_detected = qla4xxx_pci_error_detected, 54922232be0dSLalit Chandivade .mmio_enabled = qla4xxx_pci_mmio_enabled, 54932232be0dSLalit Chandivade .slot_reset = qla4xxx_pci_slot_reset, 54942232be0dSLalit Chandivade .resume = qla4xxx_pci_resume, 54952232be0dSLalit Chandivade }; 54962232be0dSLalit Chandivade 5497afaf5a2dSDavid Somayajulu static struct pci_device_id qla4xxx_pci_tbl[] = { 5498afaf5a2dSDavid Somayajulu { 5499afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 5500afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4010, 5501afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 5502afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 5503afaf5a2dSDavid Somayajulu }, 5504afaf5a2dSDavid Somayajulu { 5505afaf5a2dSDavid Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 5506afaf5a2dSDavid Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4022, 5507afaf5a2dSDavid Somayajulu .subvendor = PCI_ANY_ID, 5508afaf5a2dSDavid Somayajulu .subdevice = PCI_ANY_ID, 5509afaf5a2dSDavid Somayajulu }, 5510d915058fSDavid C Somayajulu { 5511d915058fSDavid C Somayajulu .vendor = PCI_VENDOR_ID_QLOGIC, 5512d915058fSDavid C Somayajulu .device = PCI_DEVICE_ID_QLOGIC_ISP4032, 5513d915058fSDavid C Somayajulu .subvendor = PCI_ANY_ID, 5514d915058fSDavid C Somayajulu .subdevice = PCI_ANY_ID, 5515d915058fSDavid C Somayajulu }, 5516f4f5df23SVikas Chaudhary { 5517f4f5df23SVikas Chaudhary .vendor = PCI_VENDOR_ID_QLOGIC, 5518f4f5df23SVikas Chaudhary .device = PCI_DEVICE_ID_QLOGIC_ISP8022, 5519f4f5df23SVikas Chaudhary .subvendor = PCI_ANY_ID, 5520f4f5df23SVikas Chaudhary .subdevice = PCI_ANY_ID, 5521f4f5df23SVikas Chaudhary }, 5522afaf5a2dSDavid Somayajulu {0, 0}, 5523afaf5a2dSDavid Somayajulu }; 5524afaf5a2dSDavid Somayajulu MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl); 5525afaf5a2dSDavid Somayajulu 552647975477SAdrian Bunk static struct pci_driver qla4xxx_pci_driver = { 5527afaf5a2dSDavid Somayajulu .name = DRIVER_NAME, 5528afaf5a2dSDavid Somayajulu .id_table = qla4xxx_pci_tbl, 5529afaf5a2dSDavid Somayajulu .probe = qla4xxx_probe_adapter, 5530afaf5a2dSDavid Somayajulu .remove = qla4xxx_remove_adapter, 55312232be0dSLalit Chandivade .err_handler = &qla4xxx_err_handler, 5532afaf5a2dSDavid Somayajulu }; 5533afaf5a2dSDavid Somayajulu 5534afaf5a2dSDavid Somayajulu static int __init qla4xxx_module_init(void) 5535afaf5a2dSDavid Somayajulu { 5536afaf5a2dSDavid Somayajulu int ret; 5537afaf5a2dSDavid Somayajulu 5538afaf5a2dSDavid Somayajulu /* Allocate cache for SRBs. */ 5539afaf5a2dSDavid Somayajulu srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(struct srb), 0, 554020c2df83SPaul Mundt SLAB_HWCACHE_ALIGN, NULL); 5541afaf5a2dSDavid Somayajulu if (srb_cachep == NULL) { 5542afaf5a2dSDavid Somayajulu printk(KERN_ERR 5543afaf5a2dSDavid Somayajulu "%s: Unable to allocate SRB cache..." 5544afaf5a2dSDavid Somayajulu "Failing load!\n", DRIVER_NAME); 5545afaf5a2dSDavid Somayajulu ret = -ENOMEM; 5546afaf5a2dSDavid Somayajulu goto no_srp_cache; 5547afaf5a2dSDavid Somayajulu } 5548afaf5a2dSDavid Somayajulu 5549afaf5a2dSDavid Somayajulu /* Derive version string. */ 5550afaf5a2dSDavid Somayajulu strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION); 555111010fecSAndrew Vasquez if (ql4xextended_error_logging) 5552afaf5a2dSDavid Somayajulu strcat(qla4xxx_version_str, "-debug"); 5553afaf5a2dSDavid Somayajulu 5554afaf5a2dSDavid Somayajulu qla4xxx_scsi_transport = 5555afaf5a2dSDavid Somayajulu iscsi_register_transport(&qla4xxx_iscsi_transport); 5556afaf5a2dSDavid Somayajulu if (!qla4xxx_scsi_transport){ 5557afaf5a2dSDavid Somayajulu ret = -ENODEV; 5558afaf5a2dSDavid Somayajulu goto release_srb_cache; 5559afaf5a2dSDavid Somayajulu } 5560afaf5a2dSDavid Somayajulu 5561afaf5a2dSDavid Somayajulu ret = pci_register_driver(&qla4xxx_pci_driver); 5562afaf5a2dSDavid Somayajulu if (ret) 5563afaf5a2dSDavid Somayajulu goto unregister_transport; 5564afaf5a2dSDavid Somayajulu 5565afaf5a2dSDavid Somayajulu printk(KERN_INFO "QLogic iSCSI HBA Driver\n"); 5566afaf5a2dSDavid Somayajulu return 0; 55675ae16db3SDoug Maxey 5568afaf5a2dSDavid Somayajulu unregister_transport: 5569afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 5570afaf5a2dSDavid Somayajulu release_srb_cache: 5571afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 5572afaf5a2dSDavid Somayajulu no_srp_cache: 5573afaf5a2dSDavid Somayajulu return ret; 5574afaf5a2dSDavid Somayajulu } 5575afaf5a2dSDavid Somayajulu 5576afaf5a2dSDavid Somayajulu static void __exit qla4xxx_module_exit(void) 5577afaf5a2dSDavid Somayajulu { 5578afaf5a2dSDavid Somayajulu pci_unregister_driver(&qla4xxx_pci_driver); 5579afaf5a2dSDavid Somayajulu iscsi_unregister_transport(&qla4xxx_iscsi_transport); 5580afaf5a2dSDavid Somayajulu kmem_cache_destroy(srb_cachep); 5581afaf5a2dSDavid Somayajulu } 5582afaf5a2dSDavid Somayajulu 5583afaf5a2dSDavid Somayajulu module_init(qla4xxx_module_init); 5584afaf5a2dSDavid Somayajulu module_exit(qla4xxx_module_exit); 5585afaf5a2dSDavid Somayajulu 5586afaf5a2dSDavid Somayajulu MODULE_AUTHOR("QLogic Corporation"); 5587afaf5a2dSDavid Somayajulu MODULE_DESCRIPTION("QLogic iSCSI HBA Driver"); 5588afaf5a2dSDavid Somayajulu MODULE_LICENSE("GPL"); 5589afaf5a2dSDavid Somayajulu MODULE_VERSION(QLA4XXX_DRIVER_VERSION); 5590