zfcp_fsf.c revision ff3b24fa5370a7ca618f212284d9b36fcedb9c0e
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * zfcp device driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * Implementation of FSF commands. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * Copyright IBM Corporation 2002, 2008 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "zfcp_ext.h" 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 12287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 13287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 14287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 62, 15287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt NULL); 16287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 17287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 18287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 19287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 20287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 21287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 22287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 23287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 24287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 25287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 26287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 53553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) 54553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 55c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u16 subtable = table >> 16; 56553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt u16 rule = table & 0xffff; 57ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; 58553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 59ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt if (subtable && subtable < ARRAY_SIZE(act_type)) 60553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 61ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied according to ACT rule type %s, " 62ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "rule %d\n", act_type[subtable], rule); 63553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 64553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 65553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, 66553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_port *port) 67553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 68553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 69553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 70ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to port 0x%016Lx\n", 71553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt port->wwpn); 72553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 73553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 74553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_erp_port_access_denied(port, 55, req); 75553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 76553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 77553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 78553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, 79553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_unit *unit) 80553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 81553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 82553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 83ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to unit 0x%016Lx on port 0x%016Lx\n", 84553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, unit->port->wwpn); 85553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 86553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 87553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_erp_unit_access_denied(unit, 59, req); 88553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 89553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 90553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 91553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 92553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 93ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 94ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 95553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_erp_adapter_shutdown(req->adapter, 0, 123, req); 96553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 97553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 98553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 99c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 100c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 105c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 107dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 108dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 109dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb) { 111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig kmem_cache_free(zfcp_data.fsf_req_qtcb_cache, req); 112dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 113dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 120869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * Never ever call this without shutting down the adapter first. 121869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * Otherwise the adapter would continue using and corrupting s390 storage. 122869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * Included BUG_ON() call to ensure this is done. 123869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * ERP is supposed to be the only user of this function. 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1256fcc47111ae14f284007e1b9a5002babb01d913cSwen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req, *tmp; 128fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske unsigned long flags; 1296fcc47111ae14f284007e1b9a5002babb01d913cSwen Schillig LIST_HEAD(remove_queue); 130869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke unsigned int i; 131fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske 132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 133fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske spin_lock_irqsave(&adapter->req_list_lock, flags); 134869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke for (i = 0; i < REQUEST_LIST_SIZE; i++) 1356fcc47111ae14f284007e1b9a5002babb01d913cSwen Schillig list_splice_init(&adapter->req_list[i], &remove_queue); 136fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske spin_unlock_irqrestore(&adapter->req_list_lock, flags); 137fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske 138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_del(&req->list); 140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_complete(req); 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int d_id = sr_buf->d_id & ZFCP_DID_MASK; 151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unsigned long flags; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&zfcp_data.config_lock, flags); 154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_for_each_entry(port, &adapter->port_list_head, list) 155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT: 159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(port, 0, 101, req); 160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_ERROR_PORT: 162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_shutdown(port, 0, 122, req); 163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, u8 id, 171c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 172aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 174698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 176ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 177ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 178ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 179ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1812f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 182ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 183aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 184aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 186ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 187ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 188aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 189aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 191ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 192ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 193aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 194aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 196ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 197ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 198aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 199aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 201ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 202ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 203553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 204aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 206ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 207ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 208aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 209aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 211ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 212aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 213aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 215ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 216aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 217aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 219ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 220ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 221aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 222aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 224ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 225ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 226aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 227aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 229ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 230ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 231aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 232aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 234ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 235ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 236aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 237aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 239ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 240ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 241aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 242aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 244ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 245ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 246aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_failed(adapter, id, req); 249aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 250aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 38, ldi); 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 39, ldi); 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 40, NULL); 266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("dism", adapter, sr_buf); 276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("read", adapter, sr_buf); 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 293ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 294ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 295ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 302ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_modify_adapter_status(adapter, 30, NULL, 305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 102, req); 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_access_changed(adapter, 135, req); 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig schedule_work(&adapter->scan_work); 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_access_changed(adapter, 136, req); 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig schedule_work(&adapter->stat_work); 331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTED; 343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 346ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 347ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, 121, req); 349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 363ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, 120, req); 366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_response(req); 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */ 385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 394ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 395ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 396ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 117, req); 398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, 98, req); 402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_RETRY; 403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 406ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 118, req); 408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 415ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 417c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 78, req); 418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 419c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 37, &psq->link_down_info); 421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* FIXME: reopening adapter now? better wait for link up */ 422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, 79, req); 423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_modify_adapter_status(adapter, 28, NULL, 427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 99, req); 432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 435ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 119, req); 438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 454c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 455c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 464287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_COMPLETED; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* notify initiator waiting for the requests completion */ 471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * FIXME: Race! We must not access fsf_req here as it might have been 473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * cleaned up already due to the set ZFCP_STATUS_FSFREQ_COMPLETED 474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * flag. It's an improbable case. But, we have the same paranoia for 475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * the cleanup flag already. 476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Might better be handled using complete()? 477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * (setting the flag and doing wakeup ought to be atomic 478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * with regard to checking the flag as long as waitqueue is 479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * part of the to be released structure) 480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wake_up(&req->completion_wq); 482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom; 487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.config; 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = bottom->nport_serv_param.wwnn; 496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = bottom->nport_serv_param.wwpn; 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK; 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->timer_ticks = bottom->timer_interval; 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK; 510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = bottom->plogi_payload.wwpn; 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = bottom->plogi_payload.wwnn; 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 521ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 522ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 523ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt zfcp_erp_adapter_shutdown(adapter, 0, 127, req); 524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 531553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 532553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 536553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5468a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 554ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 555ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 556ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 129, req); 558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 42, 575c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 578c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 130, req); 579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 587c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 591c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 592ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 593ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 594c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 125, req); 595c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 596c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 598c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 599ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 600ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 126, req); 602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 605c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 607c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 609c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 611c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 612c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6139eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 614c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) 615c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 616c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 617c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 618c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 619c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 620c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 624c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status); 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 637c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status); 638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 43, 639c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 640aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 642c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 643d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 644c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_sbal_check(struct zfcp_qdio_queue *queue) 645c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 646d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&queue->lock); 647c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&queue->count)) 648c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 1; 649d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&queue->lock); 650c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6532450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Rasplstatic int zfcp_fsf_sbal_available(struct zfcp_adapter *adapter) 6542450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl{ 6552450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl unsigned int count = atomic_read(&adapter->req_q.count); 6562450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!count) 6572450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl atomic_inc(&adapter->qdio_outb_full); 6582450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl return count > 0; 6592450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl} 6602450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl 661c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter) 662c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 663c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig long ret; 664c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_qdio_queue *req_q = &adapter->req_q; 665c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 666d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&req_q->lock); 667c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = wait_event_interruptible_timeout(adapter->request_wq, 668c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_sbal_check(req_q), 5 * HZ); 669c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret > 0) 670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 6712450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!ret) 6722450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl atomic_inc(&adapter->qdio_outb_full); 673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 674d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&req_q->lock); 675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 677c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 678c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_noqtcb(mempool_t *pool) 679c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 680c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 681c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 682c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!req) 683c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 686c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_qtcb(mempool_t *pool) 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req_qtcb *qtcb; 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 693c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = kmem_cache_alloc(zfcp_data.fsf_req_qtcb_cache, 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig GFP_ATOMIC); 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 699c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.qtcb = &qtcb->qtcb; 702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.pool = pool; 703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 704c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return &qtcb->fsf_req; 705c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 706c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 707c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter, 708c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u32 fsf_cmd, int req_flags, 709c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_t *pool) 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_qdio_queue *req_q = &adapter->req_q; 715951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req_flags & ZFCP_REQ_NO_QTCB) 717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_noqtcb(pool); 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_qtcb(pool); 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 722c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 724c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 727c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_waitqueue_head(&req->completion_wq); 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 733c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->req_id = adapter->req_no++; 734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_number = 1; 735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_first = req_q->first; 736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_last = req_q->first; 737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 1; 738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].addr = (void *) req->req_id; 741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_COMMAND; 742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->qtcb)) { 744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = req->adapter->fsf_req_seq_no; 745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->seq_no = adapter->fsf_req_seq_no; 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].addr = (void *) req->qtcb; 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].length = sizeof(struct fsf_qtcb); 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 761951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 762c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req_flags & ZFCP_REQ_AUTO_CLEANUP)) 763c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 768c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 769c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 771c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_qdio_queue *req_q = &adapter->req_q; 772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int idx; 773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* put allocated FSF request into hash table */ 775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_list_lock); 776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig idx = zfcp_reqlist_hash(req->req_id); 777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_add_tail(&req->list, &adapter->req_list[idx]); 778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_list_lock); 779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_qdio_send(req)) { 782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Queues are down..... */ 783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_list_lock); 785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_reqlist_remove(adapter, req); 786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_list_lock); 787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* undo changes in request queue made for this request */ 788c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_add(req->sbal_number, &req_q->count); 789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req_q->first -= req->sbal_number; 790c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req_q->first += QDIO_MAX_BUFFERS_PER_Q; 791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req_q->first %= QDIO_MAX_BUFFERS_PER_Q; /* wrap */ 792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, 116, req); 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb) 798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 809c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_status_read(struct zfcp_adapter *adapter) 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig volatile struct qdio_buffer_element *sbale; 814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 816d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS, 821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_NO_QTCB, 822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_status_read); 823025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_STATUS; 830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 2; 832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sr_buf = mempool_alloc(adapter->pool.data_status_read, GFP_ATOMIC); 834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 837c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 840c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_curr(req); 841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->addr = (void *) sr_buf; 842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->length = sizeof(*sr_buf); 843059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 853c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL); 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 856d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 865c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 868c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 870c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8719467a9b3efdd9041202f71cc270bda827a7ec777Martin Peschke zfcp_erp_adapter_reopen(unit->port->adapter, 0, 104, 872c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req); 873c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 878c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(unit->port, 0, 105, req); 879c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 47, req); 887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_boxed(unit, 48, req); 892c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 893c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 896c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 89865a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 900c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 914c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: integer specifying the request flags 916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 917c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 918c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * FIXME(design): should be watched by a timeout !!! 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 922c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter, 923c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit, 924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int req_flags) 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 927c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 9288a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_q.lock); 9302450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 931c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, 933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req_flags, adapter->pool.fsf_req_abort); 934025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) 935c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 9362abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 942c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 959c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_q.lock); 960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 965c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 966c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_ct *send_ct = req->data; 967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_ct->port; 968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 970c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = -EINVAL; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 977c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_ct_response(req); 978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = 0; 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 981c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds zfcp_test_link(port); 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 988c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 996c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(port, 49, req); 997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 998c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1000c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 1001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, 106, req); 1002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 1007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1012c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (send_ct->handler) 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_ct->handler(send_ct->handler_data); 1014c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1016c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_setup_sbals(struct zfcp_fsf_req *req, 1017c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scatterlist *sg_req, 1018c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scatterlist *sg_resp, int max_sbals) 1019c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1020c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 1021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, 1023c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_req, max_sbals); 1024c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 1025c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -ENOMEM; 1026c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 1027c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; 1028c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1029c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, 1030c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_resp, max_sbals); 1031c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 1032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -ENOMEM; 1033c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.resp_buf_length = bytes; 1034c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1035c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1040c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1041c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 1042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: if non-null the Generic Service request sent within ERP 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool, 1045c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_erp_action *erp_action) 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = ct->port; 1048c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = port->adapter; 1049c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1050c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1052d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1053c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1056c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_GENERIC, 1057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, pool); 1058025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1059c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10613f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10623f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 1063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_setup_sbals(req, ct->req, ct->resp, 1064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 1065553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 1069c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = port->handle; 1070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.service_class = FSF_CLASS_3; 1071c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.timeout = ct->timeout; 1072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1073c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_ct_request(req); 1075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (erp_action) { 1077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1078c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1079287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } else 1081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1083c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1085c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1089c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1090c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (erp_action) 1092c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 1093c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1094d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 1095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1098c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1100c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_els *send_els = req->data; 1101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1102c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1104c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_els_response(req); 1112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 112064b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann if (port && (send_els->ls_code != ZFCP_LS_ADISC)) 112164b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann zfcp_test_link(port); 1122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /*fall through */ 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1145aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 1153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_els(struct zfcp_send_els *els) 1154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = els->adapter; 1157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 1158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&els->port->status) & 1161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 1162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 1163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_q.lock); 11652450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 1166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS, 1168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, NULL); 1169025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1171c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_setup_sbals(req, els->req, els->resp, 1175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_ELS_REQ); 1176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 1180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->d_id = els->d_id; 1182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->service_class = FSF_CLASS_3; 1183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->timeout = 2 * R_A_TOV; 1184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_els_request(req); 1187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_q.lock); 1199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 1205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 120652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1209d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 12102450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 1211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, 1213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_QTCB_EXCHANGE_CONFIG_DATA, 1214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1216025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 122252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 122352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1226aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1227aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 12289eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1229aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1234287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1241d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 124252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 124352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter, 1246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 124752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 124852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig volatile struct qdio_buffer_element *sbale; 1249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1252d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA, 1257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 0, NULL); 1258025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 126152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 126252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 126452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 126552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 1266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 126752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 126952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 127052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 127152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 127252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 127352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 127452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 127652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1280d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 1281553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 1283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 128452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 128652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1292aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 1298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 129952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1302553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 130352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1305d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 13062450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 1307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 1309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1311025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1314aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1315aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 131752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 131852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 132352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1324287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 132852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig erp_action->fsf_req = NULL; 132952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1331d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 133252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 133352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 133452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 133552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 133652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 1338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 134052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter, 1342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 134352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 134452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig volatile struct qdio_buffer_element *sbale; 1345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 134752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1348553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 134952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 135052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1351d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 13522450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 1353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0, 1356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig NULL); 1357025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 136252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 136452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 136652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 136752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 136852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1373d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 1374553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 1376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 1377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fsf_plogi *plogi; 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1399ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 1400ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "remote port 0x%016Lx\n", port->wwpn); 1401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_failed(port, 31, req); 1402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1412ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Remote port 0x%016Lx could not be opened\n", 1413ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt port->wwpn); 1414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_failed(port, 32, req); 1415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1423d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1424d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1425d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&port->status) & ZFCP_STATUS_PORT_NO_WWPN) 1442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 1443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els; 1445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb->bottom.support.els1_length >= sizeof(*plogi)) { 1446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (plogi->serv_param.wwpn != port->wwpn) 1447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_PORT_DID_DID, 1448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &port->status); 1449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 1450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig port->wwnn = plogi->serv_param.wwnn; 1451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING, &port->status); 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 1472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1476d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, 1481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_QTCB_OPEN_PORT_WITH_DID, 1482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1484025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.d_id = erp_action->port->d_id; 1495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_COMMON_OPENING, &erp_action->port->status); 1499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1500287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1507d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, 107, req); 1521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_modify_port_status(port, 33, req, 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_CLOSING, &port->status); 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 1544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1548d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT, 1553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1555025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_COMMON_CLOSING, &erp_action->port->status); 1570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1571287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1578d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, 108, req); 1594c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(port, 50, req); 1601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 16035c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 16045c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 16055c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 16065c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt list_for_each_entry(unit, &port->unit_list_head, list) 16075c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 16085c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1613c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1615c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry(unit, &port->unit_list_head, list) 1625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_CLOSING, &port->status); 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 1641c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1642c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1643c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1644c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1645d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1646c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1649c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PHYSICAL_PORT, 1650c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1651c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1652025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1653c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1654c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1655c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1657c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 1658c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 1659c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1662c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1663c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1664c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1665c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1666c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_PORT_PHYS_CLOSING, 1667c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &erp_action->port->status); 1668c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1669287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1676d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1680c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1682c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1683c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1686c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1688aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1694b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 109, req); 1703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1707c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1709553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 51, req); 1713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1718553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1719ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1720ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 1721553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, 1722553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->port->wwpn, 1723ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1724ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1726553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1727553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 1728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_access_denied(unit, 60, req); 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1735ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1736ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 1737553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, unit->port->wwpn); 1738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_failed(unit, 34, req); 1739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 174665a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 1747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1757aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1758aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1759aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 1760aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->ccw_device->id.dev_model != ZFCP_DEVICE_MODEL_PRIV)) { 1761aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1762aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1763aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1764aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1765aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1774ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1775ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 1776553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, unit->port->wwpn); 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1781ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1782ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1783ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 1784553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, unit->port->wwpn); 1785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_failed(unit, 35, req); 1786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_shutdown(unit, 0, 80, req); 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1790ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1791ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 1792ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx\n)", 1793553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, unit->port->wwpn); 1794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_failed(unit, 36, req); 1795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_shutdown(unit, 0, 81, req); 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPENING, &unit->status); 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1809c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 1814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1818d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_LUN, 1823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1825025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1837c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1840c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_COMMON_OPENING, &erp_action->unit->status); 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1846287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1853d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 110, req); 1867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 1870c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(unit->port, 0, 111, req); 1871c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1874c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 52, req); 1875c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1876c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 1879c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 188165a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 1882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1884c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1892c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_CLOSING, &unit->status); 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1897c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 1898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 1899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 1904c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1906c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1908d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN, 1912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1914025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1917c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1919c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 1920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1923c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 1925c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 1926c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1927c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_COMMON_CLOSING, &erp_action->unit->status); 1930fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 1931287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 1934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1935c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 1936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1938d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 1939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1942c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 1943c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 1944c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 1945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 1946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 1947c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 1948c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_req_latency(struct zfcp_fsf_req *req) 1950c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 1951c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct fsf_qual_latency_info *lat_inf; 1952c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct latency_cont *lat; 1953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 1954c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt unsigned long flags; 1955c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info; 1957c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->bottom.io.data_direction) { 1959c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_READ: 1960c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.read; 1961c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 1962c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_WRITE: 1963c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.write; 1964c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 1965c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_CMND: 1966c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.cmd; 1967c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 1968c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt default: 1969c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt return; 1970c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt } 1971c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1972c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt spin_lock_irqsave(&unit->latencies.lock, flags); 1973c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat); 1974c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat); 1975c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat->counter++; 1976c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock_irqrestore(&unit->latencies.lock, flags); 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1979c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1981c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scsi_cmnd *scpnt = req->data; 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 1983c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 sns_len; 1985f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1988553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (unlikely(!scpnt)) 1989c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 1990553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 1991c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 1992c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { 1994feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_SOFT_ERROR); 1995feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_driver_byte(scpnt, SUGGEST_RETRY); 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1999c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2000feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2004feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_msg_byte(scpnt, COMMAND_COMPLETE); 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->result |= fcp_rsp_iu->scsi_status; 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2008c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) 2009c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_latency(req); 2010c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)) { 2012c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fcp_rsp_info[3] == RSP_CODE_GOOD) 2013feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_OK); 2014c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2015feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 20166f71d9bc025b02a8cbc2be83b0226a7043a507a5<jejb@titanic.il.steeleye.com> goto skip_fsfstatus; 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_sns_len_valid)) { 2021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sns_len = FSF_FCP_RSP_SIZE - sizeof(struct fcp_rsp_iu) + 2022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_rsp_iu->fcp_rsp_len; 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, (u32) SCSI_SENSE_BUFFERSIZE); 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, fcp_rsp_iu->fcp_sns_len); 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20269d058ecfd444d247b7448e0ef44647514d91a4f2FUJITA Tomonori memcpy(scpnt->sense_buffer, 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len); 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_resid_under)) { 20317936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid); 20327936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) < 20337936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scpnt->underflow) 2034feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 20378a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin if (scpnt->result != 0) 2038c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("erro", 3, req->adapter, scpnt, req); 20398a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else if (scpnt->retries > 0) 2040c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("retr", 4, req->adapter, scpnt, req); 20418a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else 2042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("norm", 6, req->adapter, scpnt, req); 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2052c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2055c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 2059f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if ((fcp_rsp_info[3] != RSP_CODE_GOOD) || 2062c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2065c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2067c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2069c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2071c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2073c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2082c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 2083c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 112, req); 2084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2085c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2086c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 2088c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(unit->port, 0, 113, req); 2089c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2092c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2096c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2098c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2099ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2100ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 2102c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit->fcp_lun, unit->port->wwpn); 2103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 133, req); 2104c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2105c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2108ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2109ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 2111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit->fcp_lun, unit->port->wwpn); 2112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 134, req); 2113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 2116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 53, req); 2117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 2121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_boxed(unit, 54, req); 2122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 2128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_test_link(unit->port); 2129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 21311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2143c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: adapter where scsi command is issued 2145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 2147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @timer: timer to be started when request is initiated 2148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: flags for fsf_request 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter, 2151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit, 2152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scsi_cmnd *scsi_cmnd, 2153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int use_timer, int req_flags) 21541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 2157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unsigned int sbtype; 2158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_q.lock); 21652450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 2166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, 2168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2169025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2171c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_get(unit); 2175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &(req->qtcb->bottom.io.fcp_cmnd); 2185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in FCP_CMND IU 2191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_READ; 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_READ; 2200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->rddata = 1; 2201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 2204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_WRITE; 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->wddata = 1; 22061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 22081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 2209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EIO; 2210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely((scsi_cmnd->device->simple_tags) || 2214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ((atomic_read(&unit->status) & ZFCP_STATUS_UNIT_READONLY) && 2215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SHARED)))) 2216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = SIMPLE_Q; 2217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = UNTAGGED; 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(scsi_cmnd->cmd_len > FCP_CDB_LENGTH)) 2221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->add_fcp_cdb_length = 2222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (scsi_cmnd->cmd_len - FCP_CDB_LENGTH) >> 2; 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fcp_cmnd_iu->fcp_cdb, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); 222545633fdc9615f9fd2a0ae18e301562298b15abf3Christof Schmitt 2226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->add_fcp_cdb_length + sizeof(fcp_dl_t); 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig real_bytes = zfcp_qdio_sbals_from_sg(req, sbtype, 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 2231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 2233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->sbal_number < FSF_MAX_SBALS_PER_REQ) 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EIO; 2235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2237ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2238ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 2239ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt unit->fcp_lun, unit->port->wwpn); 2240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_shutdown(unit, 0, 131, req); 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes); 22471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (use_timer) 2249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 22501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_q.lock); 2263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 22641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp-adapter 2269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: int request flags 2272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter, 2275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit, 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u8 tm_flags, int req_flags) 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 2279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_q.lock); 22872450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 2288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, 2290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2291025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) 2292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 2302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sizeof(fcp_dl_t); 2303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; 2306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &req->qtcb->bottom.io.fcp_cmnd; 2309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_management_flags = tm_flags; 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_q.lock); 2320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 23221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb->header.fsf_status != FSF_GOOD) 2326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 23341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 23371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds volatile struct qdio_buffer_element *sbale; 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2357d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 2359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, fsf_cfdc->command, 0, NULL); 2362025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 23681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= direction; 23718a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 23758a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg, 2377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2387d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 23888a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 2391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 2392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 23931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 23951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2396